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[libvirt] [PATCH] storage: mpath: Fix incorrect VIR_ERROR use
by Cole Robinson 25 May '10

25 May '10

Signed-off-by: Cole Robinson <crobinso(a)redhat.com> --- src/storage/storage_backend_mpath.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/src/storage/storage_backend_mpath.c b/src/storage/storage_backend_mpath.c index 8d0a92a..3a137eb 100644 --- a/src/storage/storage_backend_mpath.c +++ b/src/storage/storage_backend_mpath.c @@ -302,7 +302,7 @@ virStorageBackendMpathRefreshPool(virConnectPtr conn ATTRIBUTE_UNUSED, { int retval = 0; - VIR_ERROR(_("in %s"), __func__); + VIR_DEBUG("in %s", __func__); pool->def->allocation = pool->def->capacity = pool->def->available = 0; -- 1.6.6.1

2 2

[libvirt] [PATCH v4] storage: Sanitize pool target paths
by Cole Robinson 25 May '10

25 May '10

Spurious / in a pool target path makes life difficult for apps using the GetVolByPath, and doing other path based comparisons with pools. This has caused a few issues for virt-manager users: https://bugzilla.redhat.com/show_bug.cgi?id=494005 https://bugzilla.redhat.com/show_bug.cgi?id=593565 Add a new util API which removes spurious /, virFileSanitizePath. Sanitize target paths when parsing pool XML, and for paths passed to GetVolByPath. v2: Leading // must be preserved, properly sanitize path=/, sanitize away /./ -> / v3: Properly handle starting ./ and ending /. v4: Drop all '.' handling, just sanitize / for now. Signed-off-by: Cole Robinson <crobinso(a)redhat.com> --- src/conf/storage_conf.c | 8 ++++++- src/libvirt_private.syms | 1 + src/storage/storage_driver.c | 8 ++++++- src/util/util.c | 49 ++++++++++++++++++++++++++++++++++++++++++ src/util/util.h | 2 + 5 files changed, 66 insertions(+), 2 deletions(-) diff --git a/src/conf/storage_conf.c b/src/conf/storage_conf.c index 9aad081..422e76a 100644 --- a/src/conf/storage_conf.c +++ b/src/conf/storage_conf.c @@ -602,6 +602,7 @@ virStoragePoolDefParseXML(xmlXPathContextPtr ctxt) { xmlNodePtr source_node; char *type = NULL; char *uuid = NULL; + char *tmppath; if (VIR_ALLOC(ret) < 0) { virReportOOMError(); @@ -699,11 +700,16 @@ virStoragePoolDefParseXML(xmlXPathContextPtr ctxt) { } } - if ((ret->target.path = virXPathString("string(./target/path)", ctxt)) == NULL) { + if ((tmppath = virXPathString("string(./target/path)", ctxt)) == NULL) { virStorageReportError(VIR_ERR_XML_ERROR, "%s", _("missing storage pool target path")); goto cleanup; } + ret->target.path = virFileSanitizePath(tmppath); + VIR_FREE(tmppath); + if (!ret->target.path) + goto cleanup; + if (virStorageDefParsePerms(ctxt, &ret->target.perms, "./target/permissions", 0700) < 0) diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index 1e4bfd0..8b397bf 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -675,6 +675,7 @@ virFileReadLimFD; virFilePid; virFileReadPid; virFileLinkPointsTo; +virFileSanitizePath; virParseNumber; virParseVersionString; virPipeReadUntilEOF; diff --git a/src/storage/storage_driver.c b/src/storage/storage_driver.c index b148e39..0870f74 100644 --- a/src/storage/storage_driver.c +++ b/src/storage/storage_driver.c @@ -1204,6 +1204,11 @@ storageVolumeLookupByPath(virConnectPtr conn, virStorageDriverStatePtr driver = conn->storagePrivateData; unsigned int i; virStorageVolPtr ret = NULL; + char *cleanpath; + + cleanpath = virFileSanitizePath(path); + if (!cleanpath) + return NULL; storageDriverLock(driver); for (i = 0 ; i < driver->pools.count && !ret ; i++) { @@ -1213,7 +1218,7 @@ storageVolumeLookupByPath(virConnectPtr conn, const char *stable_path; stable_path = virStorageBackendStablePath(driver->pools.objs[i], - path); + cleanpath); /* * virStorageBackendStablePath already does * virStorageReportError if it fails; we just need to keep @@ -1242,6 +1247,7 @@ storageVolumeLookupByPath(virConnectPtr conn, "%s", _("no storage vol with matching path")); cleanup: + VIR_FREE(cleanpath); storageDriverUnlock(driver); return ret; } diff --git a/src/util/util.c b/src/util/util.c index 92b9a0f..0642858 100644 --- a/src/util/util.c +++ b/src/util/util.c @@ -1921,6 +1921,55 @@ int virFileAbsPath(const char *path, char **abspath) return 0; } +/* Remove spurious / characters from a path. The result must be freed */ +char * +virFileSanitizePath(const char *path) +{ + const char *cur = path; + char *cleanpath; + int idx = 0; + + cleanpath = strdup(path); + if (!cleanpath) { + virReportOOMError(); + return NULL; + } + + /* Need to sanitize: + * // -> // + * /// -> / + * /../foo -> /../foo + * /foo///bar/ -> /foo/bar + */ + + /* Starting with // is valid posix, but ///foo == /foo */ + if (cur[0] == '/' && cur[1] == '/' && cur[2] != '/') { + idx = 2; + cur += 2; + } + + /* Sanitize path in place */ + while (*cur != '\0') { + if (*cur != '/') { + cleanpath[idx++] = *cur++; + continue; + } + + /* Skip all extra / */ + while (*++cur == '/') + continue; + + /* Don't add a trailing / */ + if (idx != 0 && *cur == '\0') + break; + + cleanpath[idx++] = '/'; + } + cleanpath[idx] = '\0'; + + return cleanpath; +} + /* Like strtol, but produce an "int" result, and check more carefully. Return 0 upon success; return -1 to indicate failure. When END_PTR is NULL, the byte after the final valid digit must be NUL. diff --git a/src/util/util.h b/src/util/util.h index 6bf6bcc..abc2688 100644 --- a/src/util/util.h +++ b/src/util/util.h @@ -118,6 +118,8 @@ char *virFindFileInPath(const char *file); int virFileExists(const char *path); +char *virFileSanitizePath(const char *path); + enum { VIR_FILE_OP_NONE = 0, VIR_FILE_OP_AS_UID = (1 << 0), -- 1.6.6.1

2 2

[libvirt] [PATCH v2] qemu: Allow using regular audio backends with VNC
by Cole Robinson 25 May '10

25 May '10

Currently all host audio backends are disabled if a VM is using VNC, in favor of the QEMU VNC audio extension. Unfortunately no released VNC client supports this extension, so users have no way of getting audio to work if using VNC. Add a new config option in qemu.conf which allows changing libvirt's behavior, but keep the default intact. v2: Fix doc typos, change name to vnc_allow_host_audio Signed-off-by: Cole Robinson <crobinso(a)redhat.com> --- src/qemu/qemu.conf | 10 ++++++++++ src/qemu/qemu_conf.c | 17 ++++++++++++----- src/qemu/qemu_conf.h | 2 ++ 3 files changed, 24 insertions(+), 5 deletions(-) diff --git a/src/qemu/qemu.conf b/src/qemu/qemu.conf index 3da332f..98a1176 100644 --- a/src/qemu/qemu.conf +++ b/src/qemu/qemu.conf @@ -168,3 +168,13 @@ # be assigned to guests. # # relaxed_acs_check = 1 + + +# QEMU implements an extension for providing audio over a VNC connection, +# though if your VNC client does not support it, your only chance for getting +# sound output is through regular audio backends. By default, libvirt will +# disable all QEMU sound backends if using VNC, since they can cause +# permissions issues. Enabling this option will make libvirtd honor the +# QEMU_AUDIO_DRV environment variable when using VNC. +# +# vnc_allow_host_audio = 0 diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c index 2755545..b4d8e74 100644 --- a/src/qemu/qemu_conf.c +++ b/src/qemu/qemu_conf.c @@ -351,6 +351,10 @@ int qemudLoadDriverConfig(struct qemud_driver *driver, CHECK_TYPE ("relaxed_acs_check", VIR_CONF_LONG); if (p) driver->relaxedACS = p->l; + p = virConfGetValue (conf, "vnc_allow_host_audio"); + CHECK_TYPE ("vnc_allow_host_audio", VIR_CONF_LONG); + if (p) driver->vncAllowHostAudio = p->l; + virConfFree (conf); return 0; } @@ -4399,12 +4403,15 @@ int qemudBuildCommandLine(virConnectPtr conn, ADD_ARG_LIT(def->graphics[0]->data.vnc.keymap); } - /* QEMU implements a VNC extension for providing audio, so we - * set the audio backend to none, to prevent it opening the - * host OS audio devices since that causes security issues - * and is non-sensical when using VNC. + /* Unless user requested it, set the audio backend to none, to + * prevent it opening the host OS audio devices, since that causes + * security issues and might not work when using VNC. */ - ADD_ENV_LIT("QEMU_AUDIO_DRV=none"); + if (driver->vncAllowHostAudio) { + ADD_ENV_COPY("QEMU_AUDIO_DRV"); + } else { + ADD_ENV_LIT("QEMU_AUDIO_DRV=none"); + } } else if ((def->ngraphics == 1) && def->graphics[0]->type == VIR_DOMAIN_GRAPHICS_TYPE_SDL) { char *xauth = NULL; diff --git a/src/qemu/qemu_conf.h b/src/qemu/qemu_conf.h index 8fd8d79..7fb4de5 100644 --- a/src/qemu/qemu_conf.h +++ b/src/qemu/qemu_conf.h @@ -138,6 +138,8 @@ struct qemud_driver { unsigned int relaxedACS : 1; + unsigned int vncAllowHostAudio : 1; + virCapsPtr caps; /* An array of callbacks */ -- 1.6.6.1

2 2

[libvirt] [v5 PATCH] add 802.1Qbh handling for port-profiles based on Stefan's previous patches
by Scott Feldman 25 May '10

25 May '10

From: Scott Feldman <scofeldm(a)cisco.com> This patch builds on the work recently posted by Stefan Berger. It builds on top of Stefan's three posted patches: [PATCH v9] vepa: parsing for 802.1Qb{g|h} XML [RFC][PATCH 1/3] vepa+vsi: Introduce dependency on libnl [PATCH v3] Add host UUID (to libvirt capabilities) Stefan's RFC patches 2/3 and 3/3 are incorporated into my patch. Changes from v4 to v5: - [David Allan] move getPhysfn inside IFLA_VF_PORT_MAX to avoid compiler warning when latest if_link.h isn't available Changes from v3 to v4: - move from Stafan's 802.1Qb{g|h} XML v8 to v9 - move hostuuid and vf index calcs to inside doPortProfileOp8021Qbh Changes from v2 to v3: - remove debug fprintfs - use virGetHostUUID (thanks Stefan!) - fix compile issue when latest if_link.h isn't available - change poll timeout to 10s, at 1/8 intervals - if polling times out, log msg and return -ETIMEDOUT Changes from v1 to v2: - Add Stefan's code for getPortProfileStatus - Poll for up to 2 secs for port-profile status, at 1/8 sec intervals: - if status indicates error, abort openMacvtapTap - if status indicates success, exit polling - if status is "in-progress" after 2 secs of polling, exit polling loop silently, without error My patch finishes out the 802.1Qbh parts, which Stefan had mostly complete. I've tested using the recent kernel updates for VF_PORT netlink msgs and enic for Cisco's 10G Ethernet NIC. I tested many VMs, each with several direct interfaces, each configured with a port-profile per the XML. VM-to-VM, and VM-to-external work as expected. VM-to-VM on same host (using same NIC) works same as VM-to-VM where VMs are on diff hosts. I'm able to change settings on the port-profile while the VM is running to change the virtual port behaviour. For example, adjusting a QoS setting like rate limit. All VMs with interfaces using that port-profile immediatly see the effect of the change to the port-profile. I don't have a SR-IOV device to test so source dev is a non-SR-IOV device, but most of the code paths include support for specifing the source dev and VF index. We'll need to complete this by discovering the PF given the VF linkdev. Once we have the PF, we'll also have the VF index. All this info- mation is available from sysfs. Signed-off-by: Scott Feldman <scofeldm(a)cisco.com> --- configure.ac | 16 + src/qemu/qemu_conf.c | 2 src/qemu/qemu_driver.c | 4 src/util/macvtap.c | 764 +++++++++++++++++++++++++++++++++++++++++++++++- src/util/macvtap.h | 1 5 files changed, 771 insertions(+), 16 deletions(-) diff --git a/configure.ac b/configure.ac index 36ba703..885b0ae 100644 --- a/configure.ac +++ b/configure.ac @@ -2005,13 +2005,26 @@ if test "$with_macvtap" != "no" ; then fi AM_CONDITIONAL([WITH_MACVTAP], [test "$with_macvtap" = "yes"]) +AC_TRY_COMPILE([ #include <sys/socket.h> + #include <linux/rtnetlink.h> ], + [ int x = IFLA_PORT_MAX; ], + [ with_virtualport=yes ], + [ with_virtualport=no ]) +if test "$with_virtualport" = "yes"; then + val=1 +else + val=0 +fi +AC_DEFINE_UNQUOTED([WITH_VIRTUALPORT], $val, [whether vsi vepa support is enabled]) +AM_CONDITIONAL([WITH_VIRTUALPORT], [test "$with_virtualport" = "yes"]) + dnl netlink library LIBNL_CFLAGS="" LIBNL_LIBS="" -if test "$with_macvtap" = "yes"; then +if test "$with_macvtap" = "yes" || "$with_virtualport" = "yes"; then PKG_CHECK_MODULES([LIBNL], [libnl-1 >= $LIBNL_REQUIRED], [ ], [ AC_MSG_ERROR([libnl >= $LIBNL_REQUIRED is required for macvtap support]) @@ -2084,6 +2097,7 @@ AC_MSG_NOTICE([ Network: $with_network]) AC_MSG_NOTICE([Libvirtd: $with_libvirtd]) AC_MSG_NOTICE([ netcf: $with_netcf]) AC_MSG_NOTICE([ macvtap: $with_macvtap]) +AC_MSG_NOTICE([virtport: $with_virtualport]) AC_MSG_NOTICE([]) AC_MSG_NOTICE([Storage Drivers]) AC_MSG_NOTICE([]) diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c index 111fa6e..95d4c1a 100644 --- a/src/qemu/qemu_conf.c +++ b/src/qemu/qemu_conf.c @@ -1505,7 +1505,7 @@ qemudPhysIfaceConnect(virConnectPtr conn, if (err) { close(rc); rc = -1; - delMacvtap(net->ifname, + delMacvtap(net->ifname, net->data.direct.linkdev, &net->data.direct.virtPortProfile); } } diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index f02bf3b..f1a0d0e 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -3679,7 +3679,7 @@ static void qemudShutdownVMDaemon(struct qemud_driver *driver, for (i = 0; i < def->nnets; i++) { virDomainNetDefPtr net = def->nets[i]; if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) - delMacvtap(net->ifname, + delMacvtap(net->ifname, net->data.direct.linkdev, &net->data.direct.virtPortProfile); } #endif @@ -8369,7 +8369,7 @@ qemudDomainDetachNetDevice(struct qemud_driver *driver, #if WITH_MACVTAP if (detach->type == VIR_DOMAIN_NET_TYPE_DIRECT) - delMacvtap(detach->ifname, + delMacvtap(detach->ifname, detach->data.direct.linkdev, &detach->data.direct.virtPortProfile); #endif diff --git a/src/util/macvtap.c b/src/util/macvtap.c index 5cbd02b..8e4bea3 100644 --- a/src/util/macvtap.c +++ b/src/util/macvtap.c @@ -27,7 +27,7 @@ #include <config.h> -#if WITH_MACVTAP +#if WITH_MACVTAP || WITH_VIRTUALPORT # include <stdio.h> # include <errno.h> @@ -41,6 +41,8 @@ # include <linux/rtnetlink.h> # include <linux/if_tun.h> +# include <netlink/msg.h> + # include "util.h" # include "memory.h" # include "logging.h" @@ -48,6 +50,7 @@ # include "interface.h" # include "conf/domain_conf.h" # include "virterror_internal.h" +# include "uuid.h" # define VIR_FROM_THIS VIR_FROM_NET @@ -58,15 +61,23 @@ # define MACVTAP_NAME_PREFIX "macvtap" # define MACVTAP_NAME_PATTERN "macvtap%d" +# define MICROSEC_PER_SEC (1000 * 1000) + static int associatePortProfileId(const char *macvtap_ifname, + const char *linkdev, const virVirtualPortProfileDefPtr virtPort, - int vf, const unsigned char *vmuuid); static int disassociatePortProfileId(const char *macvtap_ifname, + const char *linkdev, const virVirtualPortProfileDefPtr virtPort); +enum virVirtualPortOp { + ASSOCIATE = 0x1, + DISASSOCIATE = 0x2, +}; + static int nlOpen(void) { @@ -159,6 +170,156 @@ err_exit: } +# ifdef IFLA_VF_PORT_MAX + +/** + * nlCommWaitSuccess: + * + * @nlmsg: pointer to netlink message + * @nl_grousp: the netlink multicast groups to send to + * @respbuf: pointer to pointer where response buffer will be allocated + * @respbuflen: pointer to integer holding the size of the response buffer + * on return of the function. + * @to_usecs: timeout in microseconds to wait for a success message + * to be returned + * + * Send the given message to the netlink multicast group and receive + * responses. Skip responses indicating an error and keep on receiving + * responses until a success response is returned. + * Returns 0 on success, -1 on error. In case of error, no response + * buffer will be returned. + */ +static int +nlCommWaitSuccess(struct nlmsghdr *nlmsg, int nl_groups, + char **respbuf, int *respbuflen, long to_usecs) +{ + int rc = 0; + struct sockaddr_nl nladdr = { + .nl_family = AF_NETLINK, + .nl_pid = getpid(), + .nl_groups = nl_groups, + }; + int rcvChunkSize = 1024; // expecting less than that + int rcvoffset = 0; + ssize_t nbytes; + int n; + struct timeval tv = { + .tv_sec = to_usecs / MICROSEC_PER_SEC, + .tv_usec = to_usecs % MICROSEC_PER_SEC, + }; + fd_set rfds; + bool gotvalid = false; + int fd = nlOpen(); + static uint32_t seq = 0x1234; + uint32_t myseq = seq++; + uint32_t mypid = getpid(); + + if (fd < 0) + return -1; + + nlmsg->nlmsg_pid = mypid; + nlmsg->nlmsg_seq = myseq; + nlmsg->nlmsg_flags |= NLM_F_ACK; + + nbytes = sendto(fd, (void *)nlmsg, nlmsg->nlmsg_len, 0, + (struct sockaddr *)&nladdr, sizeof(nladdr)); + if (nbytes < 0) { + virReportSystemError(errno, + "%s", _("cannot send to netlink socket")); + rc = -1; + goto err_exit; + } + + while (!gotvalid) { + rcvoffset = 0; + while (1) { + socklen_t addrlen = sizeof(nladdr); + + if (VIR_REALLOC_N(*respbuf, rcvoffset+rcvChunkSize) < 0) { + virReportOOMError(); + rc = -1; + goto err_exit; + } + + FD_ZERO(&rfds); + FD_SET(fd, &rfds); + + n = select(fd + 1, &rfds, NULL, NULL, &tv); + if (n == 0) { + rc = -1; + goto err_exit; + } + + nbytes = recvfrom(fd, &((*respbuf)[rcvoffset]), rcvChunkSize, 0, + (struct sockaddr *)&nladdr, &addrlen); + if (nbytes < 0) { + if (errno == EAGAIN || errno == EINTR) + continue; + virReportSystemError(errno, "%s", + _("error receiving from netlink socket")); + rc = -1; + goto err_exit; + } + rcvoffset += nbytes; + break; + } + *respbuflen = rcvoffset; + + /* check message for error */ + if (*respbuflen > NLMSG_LENGTH(0) && *respbuf != NULL) { + struct nlmsghdr *resp = (struct nlmsghdr *)*respbuf; + struct nlmsgerr *err; + + if (resp->nlmsg_pid != mypid || + resp->nlmsg_seq != myseq) + continue; + + /* skip reflected message */ + if (resp->nlmsg_type & 0x10) + continue; + + switch (resp->nlmsg_type) { + case NLMSG_ERROR: + err = (struct nlmsgerr *)NLMSG_DATA(resp); + if (resp->nlmsg_len >= NLMSG_LENGTH(sizeof(*err))) { + if (-err->error != EOPNOTSUPP) { + /* assuming error msg from daemon */ + gotvalid = true; + break; + } + } + /* whatever this is, skip it */ + VIR_FREE(*respbuf); + *respbuf = NULL; + *respbuflen = 0; + break; + + case NLMSG_DONE: + gotvalid = true; + break; + + default: + VIR_FREE(*respbuf); + *respbuf = NULL; + *respbuflen = 0; + break; + } + } + } + +err_exit: + if (rc == -1) { + VIR_FREE(*respbuf); + *respbuf = NULL; + *respbuflen = 0; + } + + nlClose(fd); + return rc; +} + +# endif + static struct rtattr * rtattrCreate(char *buffer, int bufsize, int type, const void *data, int datalen) @@ -204,6 +365,8 @@ nlAppend(struct nlmsghdr *nlm, int totlen, const void *data, int datalen) } +# if WITH_MACVTAP + static int link_add(const char *type, const unsigned char *macaddress, int macaddrsize, @@ -655,8 +818,8 @@ create_name: } if (associatePortProfileId(cr_ifname, + linkdev, virtPortProfile, - -1, vmuuid) != 0) { rc = -1; goto link_del_exit; @@ -689,6 +852,7 @@ create_name: disassociate_exit: disassociatePortProfileId(cr_ifname, + linkdev, virtPortProfile); link_del_exit: @@ -701,6 +865,7 @@ link_del_exit: /** * delMacvtap: * @ifname : The name of the macvtap interface + * @linkdev: The interface name of the NIC to connect to the external bridge * @virtPortProfile: pointer to object holding the virtual port profile data * * Delete an interface given its name. Disassociate @@ -709,24 +874,589 @@ link_del_exit: */ void delMacvtap(const char *ifname, + const char *linkdev, virVirtualPortProfileDefPtr virtPortProfile) { if (ifname) { disassociatePortProfileId(ifname, + linkdev, virtPortProfile); link_del(ifname); } } -#endif +# endif + + +# ifdef IFLA_PORT_MAX + +static struct nla_policy ifla_policy[IFLA_MAX + 1] = +{ + [IFLA_VF_PORTS] = { .type = NLA_NESTED }, +}; + +static struct nla_policy ifla_vf_ports_policy[IFLA_VF_PORT_MAX + 1] = +{ + [IFLA_VF_PORT] = { .type = NLA_NESTED }, +}; + +static struct nla_policy ifla_port_policy[IFLA_PORT_MAX + 1] = +{ + [IFLA_PORT_RESPONSE] = { .type = NLA_U16 }, +}; + + +static int +link_dump(int ifindex, struct nlattr **tb, char **recvbuf) +{ + int rc = 0; + char nlmsgbuf[256] = { 0, }; + struct nlmsghdr *nlm = (struct nlmsghdr *)nlmsgbuf, *resp; + struct nlmsgerr *err; + struct ifinfomsg i = { + .ifi_family = AF_UNSPEC, + .ifi_index = ifindex + }; + int recvbuflen; + + *recvbuf = NULL; + + nlInit(nlm, NLM_F_REQUEST, RTM_GETLINK); + + if (!nlAppend(nlm, sizeof(nlmsgbuf), &i, sizeof(i))) + goto buffer_too_small; + + if (nlComm(nlm, recvbuf, &recvbuflen) < 0) + return -1; + + if (recvbuflen < NLMSG_LENGTH(0) || *recvbuf == NULL) + goto malformed_resp; + + resp = (struct nlmsghdr *)*recvbuf; + + switch (resp->nlmsg_type) { + case NLMSG_ERROR: + err = (struct nlmsgerr *)NLMSG_DATA(resp); + if (resp->nlmsg_len < NLMSG_LENGTH(sizeof(*err))) + goto malformed_resp; + + switch (-err->error) { + case 0: + break; + + default: + virReportSystemError(-err->error, + _("error dumping %d interface"), + ifindex); + rc = -1; + } + break; + + case GENL_ID_CTRL: + case NLMSG_DONE: + if (nlmsg_parse(resp, sizeof(struct ifinfomsg), + tb, IFLA_MAX, ifla_policy)) { + goto malformed_resp; + } + break; + + default: + goto malformed_resp; + } + + if (rc != 0) + VIR_FREE(*recvbuf); + + return rc; + +malformed_resp: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("malformed netlink response message")); + VIR_FREE(*recvbuf); + return -1; + +buffer_too_small: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("internal buffer is too small")); + return -1; +} + + +static int +getPortProfileStatus(struct nlattr **tb, int32_t vf, uint16_t *status) +{ + int rc = 1; + const char *msg = NULL; + struct nlattr *tb2[IFLA_VF_PORT_MAX + 1], + *tb3[IFLA_PORT_MAX+1]; + + if (vf == PORT_SELF_VF) { + if (tb[IFLA_PORT_SELF]) { + if (nla_parse_nested(tb3, IFLA_PORT_MAX, tb[IFLA_PORT_SELF], + ifla_port_policy)) { + msg = _("error parsing nested IFLA_VF_PORT part"); + goto err_exit; + } + } + } else { + if (tb[IFLA_VF_PORTS]) { + if (nla_parse_nested(tb2, IFLA_VF_PORT_MAX, tb[IFLA_VF_PORTS], + ifla_vf_ports_policy)) { + msg = _("error parsing nested IFLA_VF_PORTS part"); + goto err_exit; + } + if (tb2[IFLA_VF_PORT]) { + if (nla_parse_nested(tb3, IFLA_PORT_MAX, tb2[IFLA_VF_PORT], + ifla_port_policy)) { + msg = _("error parsing nested IFLA_VF_PORT part"); + goto err_exit; + } + } + } + } + + if (tb3[IFLA_PORT_RESPONSE]) { + *status = *(uint16_t *)RTA_DATA(tb3[IFLA_PORT_RESPONSE]); + rc = 0; + } else { + msg = _("no IFLA_PORT_RESPONSE found in netlink message"); + goto err_exit; + } + +err_exit: + if (msg) + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", msg); + + return rc; +} + + +static int +doPortProfileOpSetLink(bool multicast, + int ifindex, + const char *profileId, + struct ifla_port_vsi *portVsi, + const unsigned char *instanceId, + const unsigned char *hostUUID, + int32_t vf, + uint8_t op) +{ + int rc = 0; + char nlmsgbuf[256]; + struct nlmsghdr *nlm = (struct nlmsghdr *)nlmsgbuf, *resp; + struct nlmsgerr *err; + char rtattbuf[64]; + struct rtattr *rta, *vfports, *vfport; + struct ifinfomsg ifinfo = { + .ifi_family = AF_UNSPEC, + .ifi_index = ifindex, + }; + char *recvbuf = NULL; + int recvbuflen = 0; + + memset(&nlmsgbuf, 0, sizeof(nlmsgbuf)); + + nlInit(nlm, NLM_F_REQUEST, RTM_SETLINK); + + if (!nlAppend(nlm, sizeof(nlmsgbuf), &ifinfo, sizeof(ifinfo))) + goto buffer_too_small; + + if (vf == PORT_SELF_VF) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_SELF, NULL, 0); + } else { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_VF_PORTS, NULL, 0); + if (!rta) + goto buffer_too_small; + + if (!(vfports = nlAppend(nlm, sizeof(nlmsgbuf), + rtattbuf, rta->rta_len))) + goto buffer_too_small; + + /* beging nesting vfports */ + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_VF_PORT, NULL, 0); + } + + if (!rta) + goto buffer_too_small; + + if (!(vfport = nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len))) + goto buffer_too_small; + + if (profileId) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_PROFILE, + profileId, strlen(profileId) + 1); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (portVsi) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_VSI_TYPE, + portVsi, sizeof(*portVsi)); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (instanceId) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_INSTANCE_UUID, + instanceId, VIR_UUID_BUFLEN); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (hostUUID) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_HOST_UUID, + hostUUID, VIR_UUID_BUFLEN); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (vf != PORT_SELF_VF) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_VF, + &vf, sizeof(vf)); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_REQUEST, + &op, sizeof(op)); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + + /* end nesting of vport */ + vfport->rta_len = (char *)nlm + nlm->nlmsg_len - (char *)vfport; + + if (vf != PORT_SELF_VF) { + /* end nesting of vfports */ + vfports->rta_len = (char *)nlm + nlm->nlmsg_len - (char *)vfports; + } + + if (!multicast) { + if (nlComm(nlm, &recvbuf, &recvbuflen) < 0) + return -1; + } else { + if (nlCommWaitSuccess(nlm, RTMGRP_LINK, &recvbuf, &recvbuflen, + 5 * MICROSEC_PER_SEC) < 0) + return -1; + } + + if (recvbuflen < NLMSG_LENGTH(0) || recvbuf == NULL) + goto malformed_resp; + + resp = (struct nlmsghdr *)recvbuf; + + switch (resp->nlmsg_type) { + case NLMSG_ERROR: + err = (struct nlmsgerr *)NLMSG_DATA(resp); + if (resp->nlmsg_len < NLMSG_LENGTH(sizeof(*err))) + goto malformed_resp; + switch (-err->error) { + case 0: + break; + + default: + virReportSystemError(-err->error, + _("error during virtual port configuration of ifindex %d"), + ifindex); + rc = -1; + } + break; + + case NLMSG_DONE: + break; + + default: + goto malformed_resp; + } + + VIR_FREE(recvbuf); + + return rc; + +malformed_resp: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("malformed netlink response message")); + VIR_FREE(recvbuf); + return -1; + +buffer_too_small: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("internal buffer is too small")); + return -1; +} + + +static int +doPortProfileOpCommon(bool multicast, + int ifindex, + const char *profileId, + struct ifla_port_vsi *portVsi, + const unsigned char *instanceId, + const unsigned char *hostUUID, + int32_t vf, + uint8_t op) +{ + int rc; + char *recvbuf = NULL; + struct nlattr *tb[IFLA_MAX + 1]; + int repeats = 80; + uint16_t status = 0; + + rc = doPortProfileOpSetLink(multicast, + ifindex, + profileId, + portVsi, + instanceId, + hostUUID, + vf, + op); + + if (rc != 0) { + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("sending of PortProfileRequest failed.")); + return rc; + } + + if (!multicast) { + while (--repeats) { + rc = link_dump(ifindex, tb, &recvbuf); + if (rc) + goto err_exit; + rc = getPortProfileStatus(tb, vf, &status); + if (rc == 0) { + if (status == PORT_PROFILE_RESPONSE_SUCCESS || + status == PORT_VDP_RESPONSE_SUCCESS) { + break; + } else if (status == PORT_PROFILE_RESPONSE_INPROGRESS) { + // keep trying... + } else { + virReportSystemError(EINVAL, + _("error %d during port-profile setlink on ifindex %d"), + status, ifindex); + rc = 1; + break; + } + } + usleep(125000); + + VIR_FREE(recvbuf); + } + } + + if (status == PORT_PROFILE_RESPONSE_INPROGRESS) { + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("port-profile setlink timed out")); + rc = -ETIMEDOUT; + } + +err_exit: + VIR_FREE(recvbuf); + + return rc; +} + +# endif /* IFLA_PORT_MAX */ + +static int +doPortProfileOp8021Qbg(const char *ifname, + const virVirtualPortProfileDefPtr virtPort, + enum virVirtualPortOp virtPortOp) +{ + int rc; + +# ifndef IFLA_VF_PORT_MAX + + (void)ifname; + (void)virtPort; + (void)virtPortOp; + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Kernel VF Port support was missing at compile time.")); + rc = 1; + +# else /* IFLA_VF_PORT_MAX */ + + int op = PORT_REQUEST_ASSOCIATE; + struct ifla_port_vsi portVsi = { + .vsi_mgr_id = virtPort->u.virtPort8021Qbg.managerID, + .vsi_type_version = virtPort->u.virtPort8021Qbg.typeIDVersion, + }; + bool multicast = true; + int ifindex; + + if (ifaceGetIndex(true, ifname, &ifindex) != 0) { + rc = 1; + goto err_exit; + } + + portVsi.vsi_type_id[2] = virtPort->u.virtPort8021Qbg.typeID >> 16; + portVsi.vsi_type_id[1] = virtPort->u.virtPort8021Qbg.typeID >> 8; + portVsi.vsi_type_id[0] = virtPort->u.virtPort8021Qbg.typeID; + + switch (virtPortOp) { + case ASSOCIATE: + op = PORT_REQUEST_ASSOCIATE; + break; + case DISASSOCIATE: + op = PORT_REQUEST_DISASSOCIATE; + break; + default: + macvtapError(VIR_ERR_INTERNAL_ERROR, + _("operation type %d not supported"), op); + rc = 1; + goto err_exit; + } + + rc = doPortProfileOpCommon(multicast, ifindex, + NULL, + &portVsi, + virtPort->u.virtPort8021Qbg.instanceID, + NULL, + PORT_SELF_VF, + op); + +err_exit: + +# endif /* IFLA_VF_PORT_MAX */ + + return rc; +} + + +# ifdef IFLA_VF_PORT_MAX +static int +getPhysfn(const char *linkdev, + int32_t *vf, + char **physfndev) +{ + int rc = 0; + bool virtfn = false; + + if (virtfn) { + + // XXX: if linkdev is SR-IOV VF, then set vf = VF index + // XXX: and set linkdev = PF device + // XXX: need to use get_physical_function_linux() or + // XXX: something like that to get PF + // XXX: device and figure out VF index + + rc = 1; + + } else { + + /* Not SR-IOV VF: physfndev is linkdev and VF index + * refers to linkdev self + */ + + *vf = PORT_SELF_VF; + *physfndev = (char *)linkdev; + } + + return rc; +} +# endif /* IFLA_VF_PORT_MAX */ + +static int +doPortProfileOp8021Qbh(const char *ifname, + const virVirtualPortProfileDefPtr virtPort, + const unsigned char *vm_uuid, + enum virVirtualPortOp virtPortOp) +{ + int rc; + +# ifndef IFLA_VF_PORT_MAX + + (void)ifname; + (void)virtPort; + (void)vm_uuid; + (void)virtPortOp; + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Kernel VF Port support was missing at compile time.")); + rc = 1; + +# else /* IFLA_VF_PORT_MAX */ + + char *physfndev; + unsigned char hostuuid[VIR_UUID_BUFLEN]; + int32_t vf; + int op = PORT_REQUEST_ASSOCIATE; + bool multicast = false; + int ifindex; + + rc = virGetHostUUID(hostuuid); + if (rc) + goto err_exit; + + rc = getPhysfn(ifname, &vf, &physfndev); + if (rc) + goto err_exit; + + if (ifaceGetIndex(true, physfndev, &ifindex) != 0) { + rc = 1; + goto err_exit; + } + + switch (virtPortOp) { + case ASSOCIATE: + op = PORT_REQUEST_ASSOCIATE; + break; + case DISASSOCIATE: + op = PORT_REQUEST_DISASSOCIATE; + break; + default: + macvtapError(VIR_ERR_INTERNAL_ERROR, + _("operation type %d not supported"), op); + rc = 1; + goto err_exit; + } + + rc = doPortProfileOpCommon(multicast, ifindex, + virtPort->u.virtPort8021Qbh.profileID, + NULL, + vm_uuid, + hostuuid, + vf, + op); + + switch (virtPortOp) { + case ASSOCIATE: + ifaceUp(ifname); + break; + case DISASSOCIATE: + ifaceDown(ifname); + break; + } + +err_exit: + +# endif /* IFLA_VF_PORT_MAX */ + + return rc; +} /** * associatePortProfile * * @macvtap_ifname: The name of the macvtap device + * @linkdev: The link device in case of macvtap * @virtPort: pointer to the object holding port profile parameters - * @vf: virtual function number, -1 if to be ignored * @vmuuid : the UUID of the virtual machine * * Associate a port on a swtich with a profile. This function @@ -740,15 +1470,14 @@ delMacvtap(const char *ifname, */ static int associatePortProfileId(const char *macvtap_ifname, + const char *linkdev, const virVirtualPortProfileDefPtr virtPort, - int vf, const unsigned char *vmuuid) { int rc = 0; + VIR_DEBUG("Associating port profile '%p' on link device '%s'", virtPort, macvtap_ifname); - (void)vf; - (void)vmuuid; switch (virtPort->virtPortType) { case VIR_VIRTUALPORT_NONE: @@ -756,11 +1485,14 @@ associatePortProfileId(const char *macvtap_ifname, break; case VIR_VIRTUALPORT_8021QBG: - + rc = doPortProfileOp8021Qbg(macvtap_ifname, virtPort, + ASSOCIATE); break; case VIR_VIRTUALPORT_8021QBH: - + rc = doPortProfileOp8021Qbh(linkdev, virtPort, + vmuuid, + ASSOCIATE); break; } @@ -772,6 +1504,7 @@ associatePortProfileId(const char *macvtap_ifname, * disassociatePortProfile * * @macvtap_ifname: The name of the macvtap device + * @linkdev: The link device in case of macvtap * @virtPort: point to object holding port profile parameters * * Returns 0 in case of success, != 0 otherwise with error @@ -779,9 +1512,11 @@ associatePortProfileId(const char *macvtap_ifname, */ static int disassociatePortProfileId(const char *macvtap_ifname, + const char *linkdev, const virVirtualPortProfileDefPtr virtPort) { int rc = 0; + VIR_DEBUG("Disassociating port profile id '%p' on link device '%s' ", virtPort, macvtap_ifname); @@ -791,13 +1526,18 @@ disassociatePortProfileId(const char *macvtap_ifname, break; case VIR_VIRTUALPORT_8021QBG: - + rc = doPortProfileOp8021Qbg(macvtap_ifname, virtPort, + DISASSOCIATE); break; case VIR_VIRTUALPORT_8021QBH: - + rc = doPortProfileOp8021Qbh(linkdev, virtPort, + NULL, + DISASSOCIATE); break; } return rc; } + +#endif diff --git a/src/util/macvtap.h b/src/util/macvtap.h index ae11c5c..35db31c 100644 --- a/src/util/macvtap.h +++ b/src/util/macvtap.h @@ -72,6 +72,7 @@ int openMacvtapTap(const char *ifname, char **res_ifname); void delMacvtap(const char *ifname, + const char *linkdev, virVirtualPortProfileDefPtr virtPortProfile); # endif /* WITH_MACVTAP */

4 4

[libvirt] [PATCH v3] storage: Sanitize pool target paths
by Cole Robinson 25 May '10

25 May '10

Spurious / in a pool target path makes life difficult for apps using the GetVolByPath, and doing other path based comparisons with pools. This has caused a few issues for virt-manager users: https://bugzilla.redhat.com/show_bug.cgi?id=494005 https://bugzilla.redhat.com/show_bug.cgi?id=593565 Add a new util API which removes spurious /, virFileSanitizePath. Sanitize target paths when parsing pool XML, and for paths passed to GetVolByPath. v2: Leading // must be preserved, properly sanitize path=/, sanitize away /./ -> / v3: Properly handle starting ./ and ending /. Signed-off-by: Cole Robinson <crobinso(a)redhat.com> --- src/conf/storage_conf.c | 8 ++++- src/libvirt_private.syms | 1 + src/storage/storage_driver.c | 8 ++++- src/util/util.c | 75 ++++++++++++++++++++++++++++++++++++++++++ src/util/util.h | 3 ++ 5 files changed, 93 insertions(+), 2 deletions(-) diff --git a/src/conf/storage_conf.c b/src/conf/storage_conf.c index 9aad081..422e76a 100644 --- a/src/conf/storage_conf.c +++ b/src/conf/storage_conf.c @@ -602,6 +602,7 @@ virStoragePoolDefParseXML(xmlXPathContextPtr ctxt) { xmlNodePtr source_node; char *type = NULL; char *uuid = NULL; + char *tmppath; if (VIR_ALLOC(ret) < 0) { virReportOOMError(); @@ -699,11 +700,16 @@ virStoragePoolDefParseXML(xmlXPathContextPtr ctxt) { } } - if ((ret->target.path = virXPathString("string(./target/path)", ctxt)) == NULL) { + if ((tmppath = virXPathString("string(./target/path)", ctxt)) == NULL) { virStorageReportError(VIR_ERR_XML_ERROR, "%s", _("missing storage pool target path")); goto cleanup; } + ret->target.path = virFileSanitizePath(tmppath); + VIR_FREE(tmppath); + if (!ret->target.path) + goto cleanup; + if (virStorageDefParsePerms(ctxt, &ret->target.perms, "./target/permissions", 0700) < 0) diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index 1e4bfd0..8b397bf 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -675,6 +675,7 @@ virFileReadLimFD; virFilePid; virFileReadPid; virFileLinkPointsTo; +virFileSanitizePath; virParseNumber; virParseVersionString; virPipeReadUntilEOF; diff --git a/src/storage/storage_driver.c b/src/storage/storage_driver.c index b148e39..0870f74 100644 --- a/src/storage/storage_driver.c +++ b/src/storage/storage_driver.c @@ -1204,6 +1204,11 @@ storageVolumeLookupByPath(virConnectPtr conn, virStorageDriverStatePtr driver = conn->storagePrivateData; unsigned int i; virStorageVolPtr ret = NULL; + char *cleanpath; + + cleanpath = virFileSanitizePath(path); + if (!cleanpath) + return NULL; storageDriverLock(driver); for (i = 0 ; i < driver->pools.count && !ret ; i++) { @@ -1213,7 +1218,7 @@ storageVolumeLookupByPath(virConnectPtr conn, const char *stable_path; stable_path = virStorageBackendStablePath(driver->pools.objs[i], - path); + cleanpath); /* * virStorageBackendStablePath already does * virStorageReportError if it fails; we just need to keep @@ -1242,6 +1247,7 @@ storageVolumeLookupByPath(virConnectPtr conn, "%s", _("no storage vol with matching path")); cleanup: + VIR_FREE(cleanpath); storageDriverUnlock(driver); return ret; } diff --git a/src/util/util.c b/src/util/util.c index 92b9a0f..ca10444 100644 --- a/src/util/util.c +++ b/src/util/util.c @@ -1921,6 +1921,81 @@ int virFileAbsPath(const char *path, char **abspath) return 0; } +/* Remove spurious / characters from a path. The result must be freed */ +char * +virFileSanitizePath(const char *path) +{ + const char *cur = path; + char *cleanpath; + int idx = 0; + + cleanpath = strdup(path); + if (!cleanpath) { + virReportOOMError(); + return NULL; + } + + /* Need to sanitize: + * // -> // + * /// -> / + * /../foo -> /../foo + * /.//foo -> /foo + * /foo///bar/ -> /foo/bar + * ./foo/./. -> /foo + */ + + /* Starting with // is valid posix, but ///foo == /foo */ + if (cur[0] == '/' && cur[1] == '/' && cur[2] != '/') { + idx = 2; + cur += 2; + } + + /* Sanitize path in place */ + while (*cur != '\0') { + int offset = cur - path; + + /* Copy all dirname characters */ + if ((cur[0] != '/' && cur[0] != '.') || + (cur[0] == '.' && cur[1] != '/' && cur[1] != '\0')) { + cleanpath[idx++] = *cur++; + continue; + } + + /* Sanitize away / and single . */ + do { + bool slash_follow = (cur[1] == '/'); + bool slash_before = (offset != 0 && cur[-1] == '/'); + + /* Skip all extra / */ + if (*cur == '/') { + cur++; + continue; + } + + /* Handle starting ./ ending /. //./ . */ + if ((slash_follow && slash_before) || + (offset == 0 && slash_follow) || + (slash_before && cur[1] == '\0') || + (offset == 0 && cur[1] == '\0')) { + cur++; + continue; + } + + /* '.' was part of a dirname */ + break; + } while (*cur == '/' || *cur == '.'); + + /* Don't add trailing / */ + if (idx > 0 && (cleanpath[idx-1] == '/' || *cur == '\0')) + continue; + + cleanpath[idx++] = '/'; + } + cleanpath[idx] = '\0'; + + return cleanpath; +} + /* Like strtol, but produce an "int" result, and check more carefully. Return 0 upon success; return -1 to indicate failure. When END_PTR is NULL, the byte after the final valid digit must be NUL. diff --git a/src/util/util.h b/src/util/util.h index 6bf6bcc..302bddf 100644 --- a/src/util/util.h +++ b/src/util/util.h @@ -118,6 +118,9 @@ char *virFindFileInPath(const char *file); int virFileExists(const char *path); +char *virFileSanitizePath(const char *path) +ATTRIBUTE_NONNULL(1); + enum { VIR_FILE_OP_NONE = 0, VIR_FILE_OP_AS_UID = (1 << 0), -- 1.6.6.1

3 7

[libvirt] [PATCH v3] Add host UUID (to libvirt capabilities)
by Stefan Berger 25 May '10

25 May '10

This patch adds the host UUID (to the capabilities of libvirt). The user may provide it in libvirtd.conf overriding whatever sysfs may return. If none or no valid UUID is provided in libvirtd.conf, reading the UUID from sysfs is attempted. If that function doesn't provide a valid (not all digits may be equal), generate a temporary one. virSetHostUUIDStr() should be called first with the UUID read from libvirtd.conf, but may only be called once. Subsequently the function virGetHostUUID() can be called to get the UUID of the host. changes from V2 to V3: - addressing more comments from D. Berrange: - removing virGetHostUUIDStr() function - adding uuid to all test cases' data files - failing libvirt if host_uuid is malformatted or considered invalid - extended virCapsHost with host_uuid field - initializing virCapsHost's host_uuid field in qemu_driver's init function Changes from V1 to V2: - addressing comments from Daniel Berrange: - rewrite/ code to get the UUID from 2 possible sysfs files - got rid of dmidecide dependency - call the newly added virGetHostUUID() function in udevGetDMIData() to get the UUID of the host ( even if it's just a temporary UUID ) Besides that, this patch - adds uuid to the capabilties XML schema - displays the UUID in in 'virsh capabilities' - adds 3 public functions to uuid.h for setting and getting the UUID of the host Signed-off-by: Stefan Berger <stefanb(a)us.ibm.com> --- daemon/libvirtd.c | 9 ++ daemon/libvirtd.conf | 10 ++ docs/schemas/capability.rng | 14 +++ src/conf/capabilities.c | 5 + src/conf/capabilities.h | 1 src/libvirt_private.syms | 2 src/node_device/node_device_udev.c | 6 - src/qemu/qemu_driver.c | 6 + src/util/uuid.c | 116 +++++++++++++++++++++++++++ src/util/uuid.h | 3 tests/capabilityschemadata/caps-qemu-kvm.xml | 1 tests/capabilityschemadata/caps-test.xml | 1 tests/confdata/libvirtd.conf | 9 ++ tests/confdata/libvirtd.out | 7 + tests/xencapsdata/xen-i686-pae-hvm.xml | 1 tests/xencapsdata/xen-i686-pae.xml | 1 tests/xencapsdata/xen-i686.xml | 1 tests/xencapsdata/xen-ia64-be-hvm.xml | 1 tests/xencapsdata/xen-ia64-be.xml | 1 tests/xencapsdata/xen-ia64-hvm.xml | 1 tests/xencapsdata/xen-ia64.xml | 1 tests/xencapsdata/xen-ppc64.xml | 1 tests/xencapsdata/xen-x86_64-hvm.xml | 1 tests/xencapsdata/xen-x86_64.xml | 1 24 files changed, 195 insertions(+), 5 deletions(-) Index: libvirt-acl/daemon/libvirtd.c =================================================================== --- libvirt-acl.orig/daemon/libvirtd.c +++ libvirt-acl/daemon/libvirtd.c @@ -57,6 +57,7 @@ #include "dispatch.h" #include "util.h" +#include "uuid.h" #include "remote_driver.h" #include "conf.h" #include "event.h" @@ -2718,6 +2719,7 @@ remoteReadConfigFile (struct qemud_serve char *unix_sock_rw_perms = NULL; char *unix_sock_group = NULL; char *buf = NULL; + char *host_uuid = NULL; #if HAVE_POLKIT /* Change the default back to no auth for non-root */ @@ -2840,11 +2842,18 @@ remoteReadConfigFile (struct qemud_serve GET_CONF_INT (conf, filename, max_requests); GET_CONF_INT (conf, filename, max_client_requests); + GET_CONF_STR (conf, filename, host_uuid); + if (virSetHostUUIDStr(host_uuid)) + goto free_and_fail; + + VIR_FREE(host_uuid); + virConfFree (conf); return 0; free_and_fail: virConfFree (conf); + VIR_FREE(host_uuid); VIR_FREE(mdns_name); VIR_FREE(unix_sock_ro_perms); VIR_FREE(unix_sock_rw_perms); Index: libvirt-acl/src/util/uuid.h =================================================================== --- libvirt-acl.orig/src/util/uuid.h +++ libvirt-acl/src/util/uuid.h @@ -22,6 +22,9 @@ #ifndef __VIR_UUID_H__ # define __VIR_UUID_H__ +int virSetHostUUIDStr(const char *host_uuid); +int virGetHostUUID(unsigned char *host_uuid); + int virUUIDGenerate(unsigned char *uuid); int virUUIDParse(const char *uuidstr, Index: libvirt-acl/src/util/uuid.c =================================================================== --- libvirt-acl.orig/src/util/uuid.c +++ libvirt-acl/src/util/uuid.c @@ -38,11 +38,14 @@ #include "util.h" #include "virterror_internal.h" #include "logging.h" +#include "memory.h" #ifndef ENODATA # define ENODATA EIO #endif +static unsigned char host_uuid[VIR_UUID_BUFLEN]; + static int virUUIDGenerateRandomBytes(unsigned char *buf, int buflen) @@ -208,3 +211,116 @@ void virUUIDFormat(const unsigned char * uuid[12], uuid[13], uuid[14], uuid[15]); uuidstr[VIR_UUID_STRING_BUFLEN-1] = '\0'; } + + + +/** + * isValidHostUUID + * + * @uuid: The UUID to test + * + * Do some basic tests to check whether the given UUID is + * valid as a host UUID. + * Basic tests: + * - Not all of the digits may be equal + */ +static int +isValidHostUUID(unsigned char *uuid) +{ + unsigned int i, ctr = 1; + unsigned char c; + + if (!uuid) + return 0; + + c = uuid[0]; + + for (i = 1; i < VIR_UUID_BUFLEN; i++) + if (uuid[i] == c) + ctr++; + + return (ctr != VIR_UUID_BUFLEN); +} + +static int +getDMISystemUUID(char *uuid, int len) +{ + unsigned int i = 0; + const char *paths[] = { + "/sys/devices/virtual/dmi/id/product_uuid", + "/sys/class/dmi/id/product_uuid", + NULL + }; + + while (paths[i]) { + int fd = open(paths[i], O_RDONLY); + if (fd > 0) { + if (saferead(fd, uuid, len) == len) { + close(fd); + return 0; + } + close(fd); + } + i++; + } + + return -1; +} + + +/** + * setHostUUID + * + * @host_uuid: UUID that the host is supposed to have + * + * Set the UUID of the host if it hasn't been set, yet + * Returns 0 in case of success, an error code in case of error. + */ +int +virSetHostUUIDStr(const char *uuid) +{ + int rc; + char dmiuuid[VIR_UUID_STRING_BUFLEN]; + + if (isValidHostUUID(host_uuid)) + return EEXIST; + + if (!uuid) { + if (!getDMISystemUUID(dmiuuid, sizeof(dmiuuid))) { + if (!virUUIDParse(dmiuuid, host_uuid)) + return 0; + } + } else { + rc = virUUIDParse(uuid, host_uuid); + if (rc) + return rc; + if (!isValidHostUUID(host_uuid)) + return EINVAL; + } + + if (!isValidHostUUID(host_uuid)) + return virUUIDGenerate(host_uuid); + + return 0; +} + +/** + * getHostUUID: + * + * @host_uuid: memory to store the host_uuid into + * + * Get the UUID of the host. Returns 0 in case of success, + * an error code otherwise. + * Returns 0 in case of success, an error code in case of error. + */ +int virGetHostUUID(unsigned char *uuid) +{ + int ret = 0; + + if (!isValidHostUUID(host_uuid)) + ret = virSetHostUUIDStr(NULL); + + memcpy(uuid, host_uuid, sizeof(host_uuid)); + + return ret; +} Index: libvirt-acl/src/conf/capabilities.c =================================================================== --- libvirt-acl.orig/src/conf/capabilities.c +++ libvirt-acl/src/conf/capabilities.c @@ -27,6 +27,7 @@ #include "buf.h" #include "memory.h" #include "util.h" +#include "uuid.h" #include "cpu_conf.h" /** @@ -662,9 +663,13 @@ virCapabilitiesFormatXML(virCapsPtr caps { virBuffer xml = VIR_BUFFER_INITIALIZER; int i, j, k; + char host_uuid[VIR_UUID_STRING_BUFLEN]; + + virUUIDFormat(caps->host.host_uuid, host_uuid); virBufferAddLit(&xml, "<capabilities>\n\n"); virBufferAddLit(&xml, " <host>\n"); + virBufferVSprintf(&xml," <uuid>%s</uuid>\n", host_uuid); virBufferAddLit(&xml, " <cpu>\n"); virBufferVSprintf(&xml, " <arch>%s</arch>\n", caps->host.arch); Index: libvirt-acl/docs/schemas/capability.rng =================================================================== --- libvirt-acl.orig/docs/schemas/capability.rng +++ libvirt-acl/docs/schemas/capability.rng @@ -18,6 +18,9 @@ <define name='hostcaps'> <element name='host'> + <element name='uuid'> + <ref name='UUID'/> + </element> <element name='cpu'> <element name='arch'> <ref name='archnames'/> @@ -349,4 +352,15 @@ <param name='pattern'>[a-zA-Z0-9\-_]+</param> </data> </define> + + <define name="UUID"> + <choice> + <data type="string"> + <param name="pattern">[a-fA-F0-9]{32}</param> + </data> + <data type="string"> + <param name="pattern">[a-fA-F0-9]{8}\-([a-fA-F0-9]{4}\-){3}[a-fA-F0-9]{12}</param> + </data> + </choice> + </define> </grammar> Index: libvirt-acl/src/libvirt_private.syms =================================================================== --- libvirt-acl.orig/src/libvirt_private.syms +++ libvirt-acl/src/libvirt_private.syms @@ -708,6 +708,8 @@ usbDeviceFileIterate; virUUIDFormat; virUUIDGenerate; virUUIDParse; +virSetHostUUIDStr; +virGetHostUUID; # virterror_internal.h Index: libvirt-acl/daemon/libvirtd.conf =================================================================== --- libvirt-acl.orig/daemon/libvirtd.conf +++ libvirt-acl/daemon/libvirtd.conf @@ -312,3 +312,13 @@ # e.g.: # log_outputs="3:syslog:libvirtd" # to log all warnings and errors to syslog under the libvirtd ident + +# UUID of the host: +# Provide the UUID of the host here in case the command +# 'dmidecode -s system-uuid' does not provide a valid uuid. In case +# 'dmidecode' does not provide a valid UUID and none is provided here, a +# temporary UUID will be generated. +# Keep the format of the example UUID below. UUID must not have all digits +# be the same. + +#host_uuid = "8510b1a1-1afa-4da6-8111-785fae202c1e" Index: libvirt-acl/src/node_device/node_device_udev.c =================================================================== --- libvirt-acl.orig/src/node_device/node_device_udev.c +++ libvirt-acl/src/node_device/node_device_udev.c @@ -1473,12 +1473,8 @@ udevGetDMIData(union _virNodeDevCapData goto out; } - if (udevGetStringSysfsAttr(device, - "product_uuid", - &tmp) == PROPERTY_ERROR) { + if (virGetHostUUID(data->system.hardware.uuid)) goto out; - } - virUUIDParse(tmp, data->system.hardware.uuid); if (udevGetStringSysfsAttr(device, "bios_vendor", Index: libvirt-acl/tests/capabilityschemadata/caps-qemu-kvm.xml =================================================================== --- libvirt-acl.orig/tests/capabilityschemadata/caps-qemu-kvm.xml +++ libvirt-acl/tests/capabilityschemadata/caps-qemu-kvm.xml @@ -1,6 +1,7 @@ <capabilities> <host> + <uuid>29b3d3aa-7ff5-3c36-ae20-ea64941ce1b2</uuid> <cpu> <arch>x86_64</arch> </cpu> Index: libvirt-acl/tests/capabilityschemadata/caps-test.xml =================================================================== --- libvirt-acl.orig/tests/capabilityschemadata/caps-test.xml +++ libvirt-acl/tests/capabilityschemadata/caps-test.xml @@ -1,6 +1,7 @@ <capabilities> <host> + <uuid>29b3d3aa-7ff5-3c36-ae20-ea64941ce1b2</uuid> <cpu> <arch>i686</arch> <features> Index: libvirt-acl/tests/xencapsdata/xen-i686-pae-hvm.xml =================================================================== --- libvirt-acl.orig/tests/xencapsdata/xen-i686-pae-hvm.xml +++ libvirt-acl/tests/xencapsdata/xen-i686-pae-hvm.xml @@ -1,6 +1,7 @@ <capabilities> <host> + <uuid>29b3d3aa-7ff5-3c36-ae20-ea64941ce1b2</uuid> <cpu> <arch>i686</arch> <features> Index: libvirt-acl/tests/xencapsdata/xen-i686-pae.xml =================================================================== --- libvirt-acl.orig/tests/xencapsdata/xen-i686-pae.xml +++ libvirt-acl/tests/xencapsdata/xen-i686-pae.xml @@ -1,6 +1,7 @@ <capabilities> <host> + <uuid>29b3d3aa-7ff5-3c36-ae20-ea64941ce1b2</uuid> <cpu> <arch>i686</arch> <features> Index: libvirt-acl/tests/xencapsdata/xen-i686.xml =================================================================== --- libvirt-acl.orig/tests/xencapsdata/xen-i686.xml +++ libvirt-acl/tests/xencapsdata/xen-i686.xml @@ -1,6 +1,7 @@ <capabilities> <host> + <uuid>29b3d3aa-7ff5-3c36-ae20-ea64941ce1b2</uuid> <cpu> <arch>i686</arch> </cpu> Index: libvirt-acl/tests/xencapsdata/xen-ia64-be-hvm.xml =================================================================== --- libvirt-acl.orig/tests/xencapsdata/xen-ia64-be-hvm.xml +++ libvirt-acl/tests/xencapsdata/xen-ia64-be-hvm.xml @@ -1,6 +1,7 @@ <capabilities> <host> + <uuid>29b3d3aa-7ff5-3c36-ae20-ea64941ce1b2</uuid> <cpu> <arch>ia64</arch> </cpu> Index: libvirt-acl/tests/xencapsdata/xen-ia64-be.xml =================================================================== --- libvirt-acl.orig/tests/xencapsdata/xen-ia64-be.xml +++ libvirt-acl/tests/xencapsdata/xen-ia64-be.xml @@ -1,6 +1,7 @@ <capabilities> <host> + <uuid>29b3d3aa-7ff5-3c36-ae20-ea64941ce1b2</uuid> <cpu> <arch>ia64</arch> </cpu> Index: libvirt-acl/tests/xencapsdata/xen-ia64-hvm.xml =================================================================== --- libvirt-acl.orig/tests/xencapsdata/xen-ia64-hvm.xml +++ libvirt-acl/tests/xencapsdata/xen-ia64-hvm.xml @@ -1,6 +1,7 @@ <capabilities> <host> + <uuid>29b3d3aa-7ff5-3c36-ae20-ea64941ce1b2</uuid> <cpu> <arch>ia64</arch> </cpu> Index: libvirt-acl/tests/xencapsdata/xen-ia64.xml =================================================================== --- libvirt-acl.orig/tests/xencapsdata/xen-ia64.xml +++ libvirt-acl/tests/xencapsdata/xen-ia64.xml @@ -1,6 +1,7 @@ <capabilities> <host> + <uuid>29b3d3aa-7ff5-3c36-ae20-ea64941ce1b2</uuid> <cpu> <arch>ia64</arch> </cpu> Index: libvirt-acl/tests/xencapsdata/xen-ppc64.xml =================================================================== --- libvirt-acl.orig/tests/xencapsdata/xen-ppc64.xml +++ libvirt-acl/tests/xencapsdata/xen-ppc64.xml @@ -1,6 +1,7 @@ <capabilities> <host> + <uuid>29b3d3aa-7ff5-3c36-ae20-ea64941ce1b2</uuid> <cpu> <arch>ppc64</arch> </cpu> Index: libvirt-acl/tests/xencapsdata/xen-x86_64-hvm.xml =================================================================== --- libvirt-acl.orig/tests/xencapsdata/xen-x86_64-hvm.xml +++ libvirt-acl/tests/xencapsdata/xen-x86_64-hvm.xml @@ -1,6 +1,7 @@ <capabilities> <host> + <uuid>29b3d3aa-7ff5-3c36-ae20-ea64941ce1b2</uuid> <cpu> <arch>x86_64</arch> <features> Index: libvirt-acl/tests/xencapsdata/xen-x86_64.xml =================================================================== --- libvirt-acl.orig/tests/xencapsdata/xen-x86_64.xml +++ libvirt-acl/tests/xencapsdata/xen-x86_64.xml @@ -1,6 +1,7 @@ <capabilities> <host> + <uuid>29b3d3aa-7ff5-3c36-ae20-ea64941ce1b2</uuid> <cpu> <arch>x86_64</arch> <features> Index: libvirt-acl/tests/confdata/libvirtd.conf =================================================================== --- libvirt-acl.orig/tests/confdata/libvirtd.conf +++ libvirt-acl/tests/confdata/libvirtd.conf @@ -218,3 +218,12 @@ tls_allowed_dn_list = ["DN1", "DN2"] # # By default, no Username's are checked sasl_allowed_username_list = ["joe(a)EXAMPLE.COM", "fred(a)EXAMPLE.COM" ] + +# UUID of the host: +# Provide the UUID of the host here in case the command +# 'dmidecode -s system-uuid' does not provide a valid uuid. In case +# 'dmidecode' does not provide a valid UUID and none is provided here, a +# temporary UUID will be generated. +# Keep the format of the example UUID below. + +host_uuid = "8510b1a1-1afa-4da6-8111-785fae202c1e" Index: libvirt-acl/tests/confdata/libvirtd.out =================================================================== --- libvirt-acl.orig/tests/confdata/libvirtd.out +++ libvirt-acl/tests/confdata/libvirtd.out @@ -178,3 +178,10 @@ tls_allowed_dn_list = [ "DN1", "DN2" ] # # By default, no Username's are checked sasl_allowed_username_list = [ "joe(a)EXAMPLE.COM", "fred(a)EXAMPLE.COM" ] +# UUID of the host: +# Provide the UUID of the host here in case the command +# 'dmidecode -s system-uuid' does not provide a valid uuid. In case +# 'dmidecode' does not provide a valid UUID and none is provided here, a +# temporary UUID will be generated. +# Keep the format of the example UUID below. +host_uuid = "8510b1a1-1afa-4da6-8111-785fae202c1e" Index: libvirt-acl/src/conf/capabilities.h =================================================================== --- libvirt-acl.orig/src/conf/capabilities.h +++ libvirt-acl/src/conf/capabilities.h @@ -110,6 +110,7 @@ struct _virCapsHost { virCapsHostNUMACellPtr *numaCell; virCapsHostSecModel secModel; virCPUDefPtr cpu; + unsigned char host_uuid[VIR_UUID_BUFLEN]; }; typedef struct _virCaps virCaps; Index: libvirt-acl/src/qemu/qemu_driver.c =================================================================== --- libvirt-acl.orig/src/qemu/qemu_driver.c +++ libvirt-acl/src/qemu/qemu_driver.c @@ -1334,6 +1334,11 @@ qemuCreateCapabilities(virCapsPtr oldcap caps->privateDataXMLFormat = qemuDomainObjPrivateXMLFormat; caps->privateDataXMLParse = qemuDomainObjPrivateXMLParse; + if (virGetHostUUID(caps->host.host_uuid)) { + qemuReportError(VIR_ERR_INTERNAL_ERROR, + "%s", _("cannot get the host uuid")); + goto err_exit; + } /* Security driver data */ if (driver->securityPrimaryDriver) { @@ -1355,6 +1360,7 @@ qemuCreateCapabilities(virCapsPtr oldcap no_memory: virReportOOMError(); +err_exit: virCapabilitiesFree(caps); return NULL; }

4 6

[libvirt] How to obtain rights to extend libvirt documentation pages
by Марк Коренберг 25 May '10

25 May '10

For example, http://libvirt.org/formatdomain.html#elementsDisks does not contain <serial>xxxx</serial> tag. (https://bugzilla.redhat.com/show_bug.cgi?id=593266) I wrote to community (users and developers). No one has added this information to the site... -- Segmentation fault

3 2

[libvirt] [PATCH] Allow nwfilter functions to be compiled with C++
by Chris Lalancette 25 May '10

25 May '10

Unfortunately the NWFilter functions were outside of the "extern C { ... }" declaration in include/libvirt/libvirt.h.in, which means that they couldn't be properly used with C++. Move them inside of the braces, which should fix the problem. Signed-off-by: Chris Lalancette <clalance(a)redhat.com> --- include/libvirt/libvirt.h.in | 8 ++++---- 1 files changed, 4 insertions(+), 4 deletions(-) diff --git a/include/libvirt/libvirt.h.in b/include/libvirt/libvirt.h.in index d95d7ae..e6e4d0c 100644 --- a/include/libvirt/libvirt.h.in +++ b/include/libvirt/libvirt.h.in @@ -2213,10 +2213,6 @@ int virConnectDomainEventRegisterAny(virConnectPtr conn, int virConnectDomainEventDeregisterAny(virConnectPtr conn, int callbackID); -#ifdef __cplusplus -} -#endif - /** * virNWFilter: @@ -2280,4 +2276,8 @@ int virNWFilterGetUUIDString (virNWFilterPtr nwfilter, char * virNWFilterGetXMLDesc (virNWFilterPtr nwfilter, int flags); +#ifdef __cplusplus +} +#endif + #endif /* __VIR_VIRLIB_H__ */ -- 1.6.6.1

2 2

[libvirt] [PATCH v6] add 802.1Qbh handling
by Stefan Berger 25 May '10

25 May '10

This patch builds on the work recently posted by Stefan Berger. It builds on top of Stefan's three posted patches: [PATCH v10] vepa: parsing for 802.1Qb{g|h} XML [RFC][PATCH 1/3] vepa+vsi: Introduce dependency on libnl [PATCH v3] Add host UUID (to libvirt capabilities) Stefan's RFC patches 2/3 and 3/3 are incorporated into my patch. Changes from v5 to v6: - Renamed occurrencvirVirtualPortProfileDef to virVirtualPortProfileParamses - 802.1Qbg part prepared for sending a RTM_SETLINK and getting processing status back plus a subsequent RTM_GETLINK to get IFLA_PORT_RESPONSE. Note: This interface for 802.1Qbg may still change Changes from v4 to v5: - [David Allan] move getPhysfn inside IFLA_VF_PORT_MAX to avoid compiler warning when latest if_link.h isn't available Changes from v3 to v4: - move from Stefan's 802.1Qb{g|h} XML v8 to v9 - move hostuuid and vf index calcs to inside doPortProfileOp8021Qbh Changes from v2 to v3: - remove debug fprintfs - use virGetHostUUID (thanks Stefan!) - fix compile issue when latest if_link.h isn't available - change poll timeout to 10s, at 1/8 intervals - if polling times out, log msg and return -ETIMEDOUT Changes from v1 to v2: - Add Stefan's code for getPortProfileStatus - Poll for up to 2 secs for port-profile status, at 1/8 sec intervals: - if status indicates error, abort openMacvtapTap - if status indicates success, exit polling - if status is "in-progress" after 2 secs of polling, exit polling loop silently, without error My patch finishes out the 802.1Qbh parts, which Stefan had mostly complete. I've tested using the recent kernel updates for VF_PORT netlink msgs and enic for Cisco's 10G Ethernet NIC. I tested many VMs, each with several direct interfaces, each configured with a port-profile per the XML. VM-to-VM, and VM-to-external work as expected. VM-to-VM on same host (using same NIC) works same as VM-to-VM where VMs are on diff hosts. I'm able to change settings on the port-profile while the VM is running to change the virtual port behaviour. For example, adjusting a QoS setting like rate limit. All VMs with interfaces using that port-profile immediatly see the effect of the change to the port-profile. I don't have a SR-IOV device to test so source dev is a non-SR-IOV device, but most of the code paths include support for specifing the source dev and VF index. We'll need to complete this by discovering the PF given the VF linkdev. Once we have the PF, we'll also have the VF index. All this info- mation is available from sysfs. Signed-off-by: Scott Feldman <scofeldm(a)cisco.com> Signed-off-by: Stefan Berger <stefanb(a)us.ibm.com> --- configure.ac | 16 - src/qemu/qemu_conf.c | 2 src/qemu/qemu_driver.c | 4 src/util/macvtap.c | 768 ++++++++++++++++++++++++++++++++++++++++++++++++- src/util/macvtap.h | 1 5 files changed, 775 insertions(+), 16 deletions(-) Index: libvirt-acl/configure.ac =================================================================== --- libvirt-acl.orig/configure.ac +++ libvirt-acl/configure.ac @@ -2005,13 +2005,26 @@ if test "$with_macvtap" != "no" ; then fi AM_CONDITIONAL([WITH_MACVTAP], [test "$with_macvtap" = "yes"]) +AC_TRY_COMPILE([ #include <sys/socket.h> + #include <linux/rtnetlink.h> ], + [ int x = IFLA_PORT_MAX; ], + [ with_virtualport=yes ], + [ with_virtualport=no ]) +if test "$with_virtualport" = "yes"; then + val=1 +else + val=0 +fi +AC_DEFINE_UNQUOTED([WITH_VIRTUALPORT], $val, [whether vsi vepa support is enabled]) +AM_CONDITIONAL([WITH_VIRTUALPORT], [test "$with_virtualport" = "yes"]) + dnl netlink library LIBNL_CFLAGS="" LIBNL_LIBS="" -if test "$with_macvtap" = "yes"; then +if test "$with_macvtap" = "yes" || "$with_virtualport" = "yes"; then PKG_CHECK_MODULES([LIBNL], [libnl-1 >= $LIBNL_REQUIRED], [ ], [ AC_MSG_ERROR([libnl >= $LIBNL_REQUIRED is required for macvtap support]) @@ -2084,6 +2097,7 @@ AC_MSG_NOTICE([ Network: $with_network]) AC_MSG_NOTICE([Libvirtd: $with_libvirtd]) AC_MSG_NOTICE([ netcf: $with_netcf]) AC_MSG_NOTICE([ macvtap: $with_macvtap]) +AC_MSG_NOTICE([virtport: $with_virtualport]) AC_MSG_NOTICE([]) AC_MSG_NOTICE([Storage Drivers]) AC_MSG_NOTICE([]) Index: libvirt-acl/src/qemu/qemu_conf.c =================================================================== --- libvirt-acl.orig/src/qemu/qemu_conf.c +++ libvirt-acl/src/qemu/qemu_conf.c @@ -1505,7 +1505,7 @@ qemudPhysIfaceConnect(virConnectPtr conn if (err) { close(rc); rc = -1; - delMacvtap(net->ifname, + delMacvtap(net->ifname, net->data.direct.linkdev, &net->data.direct.virtPortProfile); } } Index: libvirt-acl/src/qemu/qemu_driver.c =================================================================== --- libvirt-acl.orig/src/qemu/qemu_driver.c +++ libvirt-acl/src/qemu/qemu_driver.c @@ -3709,7 +3709,7 @@ static void qemudShutdownVMDaemon(struct for (i = 0; i < def->nnets; i++) { virDomainNetDefPtr net = def->nets[i]; if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) - delMacvtap(net->ifname, + delMacvtap(net->ifname, net->data.direct.linkdev, &net->data.direct.virtPortProfile); } #endif @@ -8513,7 +8513,7 @@ qemudDomainDetachNetDevice(struct qemud_ #if WITH_MACVTAP if (detach->type == VIR_DOMAIN_NET_TYPE_DIRECT) - delMacvtap(detach->ifname, + delMacvtap(detach->ifname, detach->data.direct.linkdev, &detach->data.direct.virtPortProfile); #endif Index: libvirt-acl/src/util/macvtap.c =================================================================== --- libvirt-acl.orig/src/util/macvtap.c +++ libvirt-acl/src/util/macvtap.c @@ -27,7 +27,7 @@ #include <config.h> -#if WITH_MACVTAP +#if WITH_MACVTAP || WITH_VIRTUALPORT # include <stdio.h> # include <errno.h> @@ -41,6 +41,8 @@ # include <linux/rtnetlink.h> # include <linux/if_tun.h> +# include <netlink/msg.h> + # include "util.h" # include "memory.h" # include "logging.h" @@ -48,6 +50,7 @@ # include "interface.h" # include "conf/domain_conf.h" # include "virterror_internal.h" +# include "uuid.h" # define VIR_FROM_THIS VIR_FROM_NET @@ -58,15 +61,23 @@ # define MACVTAP_NAME_PREFIX "macvtap" # define MACVTAP_NAME_PATTERN "macvtap%d" +# define MICROSEC_PER_SEC (1000 * 1000) + static int associatePortProfileId(const char *macvtap_ifname, + const char *linkdev, const virVirtualPortProfileParamsPtr virtPort, - int vf, const unsigned char *vmuuid); static int disassociatePortProfileId(const char *macvtap_ifname, + const char *linkdev, const virVirtualPortProfileParamsPtr virtPort); +enum virVirtualPortOp { + ASSOCIATE = 0x1, + DISASSOCIATE = 0x2, +}; + static int nlOpen(void) { @@ -159,6 +170,156 @@ err_exit: } +# ifdef IFLA_VF_PORT_MAX + +/** + * nlCommWaitSuccess: + * + * @nlmsg: pointer to netlink message + * @nl_grousp: the netlink multicast groups to send to + * @respbuf: pointer to pointer where response buffer will be allocated + * @respbuflen: pointer to integer holding the size of the response buffer + * on return of the function. + * @to_usecs: timeout in microseconds to wait for a success message + * to be returned + * + * Send the given message to the netlink multicast group and receive + * responses. Skip responses indicating an error and keep on receiving + * responses until a success response is returned. + * Returns 0 on success, -1 on error. In case of error, no response + * buffer will be returned. + */ +static int +nlCommWaitSuccess(struct nlmsghdr *nlmsg, int nl_groups, + char **respbuf, int *respbuflen, long to_usecs) +{ + int rc = 0; + struct sockaddr_nl nladdr = { + .nl_family = AF_NETLINK, + .nl_pid = getpid(), + .nl_groups = nl_groups, + }; + int rcvChunkSize = 1024; // expecting less than that + int rcvoffset = 0; + ssize_t nbytes; + int n; + struct timeval tv = { + .tv_sec = to_usecs / MICROSEC_PER_SEC, + .tv_usec = to_usecs % MICROSEC_PER_SEC, + }; + fd_set rfds; + bool gotvalid = false; + int fd = nlOpen(); + static uint32_t seq = 0x1234; + uint32_t myseq = seq++; + uint32_t mypid = getpid(); + + if (fd < 0) + return -1; + + nlmsg->nlmsg_pid = mypid; + nlmsg->nlmsg_seq = myseq; + nlmsg->nlmsg_flags |= NLM_F_ACK; + + nbytes = sendto(fd, (void *)nlmsg, nlmsg->nlmsg_len, 0, + (struct sockaddr *)&nladdr, sizeof(nladdr)); + if (nbytes < 0) { + virReportSystemError(errno, + "%s", _("cannot send to netlink socket")); + rc = -1; + goto err_exit; + } + + while (!gotvalid) { + rcvoffset = 0; + while (1) { + socklen_t addrlen = sizeof(nladdr); + + if (VIR_REALLOC_N(*respbuf, rcvoffset+rcvChunkSize) < 0) { + virReportOOMError(); + rc = -1; + goto err_exit; + } + + FD_ZERO(&rfds); + FD_SET(fd, &rfds); + + n = select(fd + 1, &rfds, NULL, NULL, &tv); + if (n == 0) { + rc = -1; + goto err_exit; + } + + nbytes = recvfrom(fd, &((*respbuf)[rcvoffset]), rcvChunkSize, 0, + (struct sockaddr *)&nladdr, &addrlen); + if (nbytes < 0) { + if (errno == EAGAIN || errno == EINTR) + continue; + virReportSystemError(errno, "%s", + _("error receiving from netlink socket")); + rc = -1; + goto err_exit; + } + rcvoffset += nbytes; + break; + } + *respbuflen = rcvoffset; + + /* check message for error */ + if (*respbuflen > NLMSG_LENGTH(0) && *respbuf != NULL) { + struct nlmsghdr *resp = (struct nlmsghdr *)*respbuf; + struct nlmsgerr *err; + + if (resp->nlmsg_pid != mypid || + resp->nlmsg_seq != myseq) + continue; + + /* skip reflected message */ + if (resp->nlmsg_type & 0x10) + continue; + + switch (resp->nlmsg_type) { + case NLMSG_ERROR: + err = (struct nlmsgerr *)NLMSG_DATA(resp); + if (resp->nlmsg_len >= NLMSG_LENGTH(sizeof(*err))) { + if (-err->error != EOPNOTSUPP) { + /* assuming error msg from daemon */ + gotvalid = true; + break; + } + } + /* whatever this is, skip it */ + VIR_FREE(*respbuf); + *respbuf = NULL; + *respbuflen = 0; + break; + + case NLMSG_DONE: + gotvalid = true; + break; + + default: + VIR_FREE(*respbuf); + *respbuf = NULL; + *respbuflen = 0; + break; + } + } + } + +err_exit: + if (rc == -1) { + VIR_FREE(*respbuf); + *respbuf = NULL; + *respbuflen = 0; + } + + nlClose(fd); + return rc; +} + +# endif + static struct rtattr * rtattrCreate(char *buffer, int bufsize, int type, const void *data, int datalen) @@ -204,6 +365,8 @@ nlAppend(struct nlmsghdr *nlm, int totle } +# if WITH_MACVTAP + static int link_add(const char *type, const unsigned char *macaddress, int macaddrsize, @@ -655,8 +818,8 @@ create_name: } if (associatePortProfileId(cr_ifname, + linkdev, virtPortProfile, - -1, vmuuid) != 0) { rc = -1; goto link_del_exit; @@ -689,6 +852,7 @@ create_name: disassociate_exit: disassociatePortProfileId(cr_ifname, + linkdev, virtPortProfile); link_del_exit: @@ -701,6 +865,7 @@ link_del_exit: /** * delMacvtap: * @ifname : The name of the macvtap interface + * @linkdev: The interface name of the NIC to connect to the external bridge * @virtPortProfile: pointer to object holding the virtual port profile data * * Delete an interface given its name. Disassociate @@ -709,24 +874,593 @@ link_del_exit: */ void delMacvtap(const char *ifname, + const char *linkdev, virVirtualPortProfileParamsPtr virtPortProfile) { if (ifname) { disassociatePortProfileId(ifname, + linkdev, virtPortProfile); link_del(ifname); } } -#endif +# endif + + +# ifdef IFLA_PORT_MAX + +static struct nla_policy ifla_policy[IFLA_MAX + 1] = +{ + [IFLA_VF_PORTS] = { .type = NLA_NESTED }, +}; + +static struct nla_policy ifla_vf_ports_policy[IFLA_VF_PORT_MAX + 1] = +{ + [IFLA_VF_PORT] = { .type = NLA_NESTED }, +}; + +static struct nla_policy ifla_port_policy[IFLA_PORT_MAX + 1] = +{ + [IFLA_PORT_RESPONSE] = { .type = NLA_U16 }, +}; + + +static int +link_dump(bool multicast, int ifindex, struct nlattr **tb, char **recvbuf) +{ + int rc = 0; + char nlmsgbuf[256] = { 0, }; + struct nlmsghdr *nlm = (struct nlmsghdr *)nlmsgbuf, *resp; + struct nlmsgerr *err; + struct ifinfomsg i = { + .ifi_family = AF_UNSPEC, + .ifi_index = ifindex + }; + int recvbuflen; + + *recvbuf = NULL; + + nlInit(nlm, NLM_F_REQUEST, RTM_GETLINK); + + if (!nlAppend(nlm, sizeof(nlmsgbuf), &i, sizeof(i))) + goto buffer_too_small; + + if (!multicast) { + if (nlComm(nlm, recvbuf, &recvbuflen) < 0) + return -1; + } else { + if (nlCommWaitSuccess(nlm, RTMGRP_LINK, recvbuf, &recvbuflen, + 5 * MICROSEC_PER_SEC) < 0) + return -1; + } + + if (recvbuflen < NLMSG_LENGTH(0) || *recvbuf == NULL) + goto malformed_resp; + + resp = (struct nlmsghdr *)*recvbuf; + + switch (resp->nlmsg_type) { + case NLMSG_ERROR: + err = (struct nlmsgerr *)NLMSG_DATA(resp); + if (resp->nlmsg_len < NLMSG_LENGTH(sizeof(*err))) + goto malformed_resp; + + switch (-err->error) { + case 0: + break; + + default: + virReportSystemError(-err->error, + _("error dumping %d interface"), + ifindex); + rc = -1; + } + break; + + case GENL_ID_CTRL: + case NLMSG_DONE: + if (nlmsg_parse(resp, sizeof(struct ifinfomsg), + tb, IFLA_MAX, ifla_policy)) { + goto malformed_resp; + } + break; + + default: + goto malformed_resp; + } + + if (rc != 0) + VIR_FREE(*recvbuf); + + return rc; + +malformed_resp: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("malformed netlink response message")); + VIR_FREE(*recvbuf); + return -1; + +buffer_too_small: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("internal buffer is too small")); + return -1; +} + + +static int +getPortProfileStatus(struct nlattr **tb, int32_t vf, uint16_t *status) +{ + int rc = 1; + const char *msg = NULL; + struct nlattr *tb2[IFLA_VF_PORT_MAX + 1], + *tb3[IFLA_PORT_MAX+1]; + + if (vf == PORT_SELF_VF) { + if (tb[IFLA_PORT_SELF]) { + if (nla_parse_nested(tb3, IFLA_PORT_MAX, tb[IFLA_PORT_SELF], + ifla_port_policy)) { + msg = _("error parsing nested IFLA_VF_PORT part"); + goto err_exit; + } + } + } else { + if (tb[IFLA_VF_PORTS]) { + if (nla_parse_nested(tb2, IFLA_VF_PORT_MAX, tb[IFLA_VF_PORTS], + ifla_vf_ports_policy)) { + msg = _("error parsing nested IFLA_VF_PORTS part"); + goto err_exit; + } + if (tb2[IFLA_VF_PORT]) { + if (nla_parse_nested(tb3, IFLA_PORT_MAX, tb2[IFLA_VF_PORT], + ifla_port_policy)) { + msg = _("error parsing nested IFLA_VF_PORT part"); + goto err_exit; + } + } + } + } + if (tb3[IFLA_PORT_RESPONSE]) { + *status = *(uint16_t *)RTA_DATA(tb3[IFLA_PORT_RESPONSE]); + rc = 0; + } else { + msg = _("no IFLA_PORT_RESPONSE found in netlink message"); + goto err_exit; + } + +err_exit: + if (msg) + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", msg); + + return rc; +} + + +static int +doPortProfileOpSetLink(bool multicast, + int ifindex, + const char *profileId, + struct ifla_port_vsi *portVsi, + const unsigned char *instanceId, + const unsigned char *hostUUID, + int32_t vf, + uint8_t op) +{ + int rc = 0; + char nlmsgbuf[256]; + struct nlmsghdr *nlm = (struct nlmsghdr *)nlmsgbuf, *resp; + struct nlmsgerr *err; + char rtattbuf[64]; + struct rtattr *rta, *vfports = NULL, *vfport; + struct ifinfomsg ifinfo = { + .ifi_family = AF_UNSPEC, + .ifi_index = ifindex, + }; + char *recvbuf = NULL; + int recvbuflen = 0; + + memset(&nlmsgbuf, 0, sizeof(nlmsgbuf)); + + nlInit(nlm, NLM_F_REQUEST, RTM_SETLINK); + + if (!nlAppend(nlm, sizeof(nlmsgbuf), &ifinfo, sizeof(ifinfo))) + goto buffer_too_small; + + if (vf == PORT_SELF_VF) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_SELF, NULL, 0); + } else { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_VF_PORTS, NULL, 0); + if (!rta) + goto buffer_too_small; + + if (!(vfports = nlAppend(nlm, sizeof(nlmsgbuf), + rtattbuf, rta->rta_len))) + goto buffer_too_small; + + /* beging nesting vfports */ + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_VF_PORT, NULL, 0); + } + + if (!rta) + goto buffer_too_small; + + if (!(vfport = nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len))) + goto buffer_too_small; + + if (profileId) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_PROFILE, + profileId, strlen(profileId) + 1); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (portVsi) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_VSI_TYPE, + portVsi, sizeof(*portVsi)); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (instanceId) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_INSTANCE_UUID, + instanceId, VIR_UUID_BUFLEN); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (hostUUID) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_HOST_UUID, + hostUUID, VIR_UUID_BUFLEN); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (vf != PORT_SELF_VF) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_VF, + &vf, sizeof(vf)); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_REQUEST, + &op, sizeof(op)); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + + /* end nesting of vport */ + vfport->rta_len = (char *)nlm + nlm->nlmsg_len - (char *)vfport; + + if (vf != PORT_SELF_VF) { + /* end nesting of vfports */ + vfports->rta_len = (char *)nlm + nlm->nlmsg_len - (char *)vfports; + } + + if (!multicast) { + if (nlComm(nlm, &recvbuf, &recvbuflen) < 0) + return -1; + } else { + if (nlCommWaitSuccess(nlm, RTMGRP_LINK, &recvbuf, &recvbuflen, + 5 * MICROSEC_PER_SEC) < 0) + return -1; + } + + if (recvbuflen < NLMSG_LENGTH(0) || recvbuf == NULL) + goto malformed_resp; + + resp = (struct nlmsghdr *)recvbuf; + + switch (resp->nlmsg_type) { + case NLMSG_ERROR: + err = (struct nlmsgerr *)NLMSG_DATA(resp); + if (resp->nlmsg_len < NLMSG_LENGTH(sizeof(*err))) + goto malformed_resp; + + switch (-err->error) { + case 0: + break; + + default: + virReportSystemError(-err->error, + _("error during virtual port configuration of ifindex %d"), + ifindex); + rc = -1; + } + break; + + case NLMSG_DONE: + break; + + default: + goto malformed_resp; + } + + VIR_FREE(recvbuf); + + return rc; + +malformed_resp: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("malformed netlink response message")); + VIR_FREE(recvbuf); + return -1; + +buffer_too_small: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("internal buffer is too small")); + return -1; +} + + +static int +doPortProfileOpCommon(bool multicast, + int ifindex, + const char *profileId, + struct ifla_port_vsi *portVsi, + const unsigned char *instanceId, + const unsigned char *hostUUID, + int32_t vf, + uint8_t op) +{ + int rc; + char *recvbuf = NULL; + struct nlattr *tb[IFLA_MAX + 1]; + int repeats = 80; + uint16_t status = 0; + + rc = doPortProfileOpSetLink(multicast, + ifindex, + profileId, + portVsi, + instanceId, + hostUUID, + vf, + op); + + if (rc != 0) { + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("sending of PortProfileRequest failed.")); + return rc; + } + + while (--repeats) { + rc = link_dump(multicast, ifindex, tb, &recvbuf); + if (rc) + goto err_exit; + rc = getPortProfileStatus(tb, vf, &status); + if (rc == 0) { + if (status == PORT_PROFILE_RESPONSE_SUCCESS || + status == PORT_VDP_RESPONSE_SUCCESS) { + break; + } else if (status == PORT_PROFILE_RESPONSE_INPROGRESS) { + // keep trying... + } else { + virReportSystemError(EINVAL, + _("error %d during port-profile setlink on ifindex %d"), + status, ifindex); + rc = 1; + break; + } + } + usleep(125000); + + VIR_FREE(recvbuf); + } + + if (status == PORT_PROFILE_RESPONSE_INPROGRESS) { + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("port-profile setlink timed out")); + rc = -ETIMEDOUT; + } + +err_exit: + VIR_FREE(recvbuf); + + return rc; +} + +# endif /* IFLA_PORT_MAX */ + +static int +doPortProfileOp8021Qbg(const char *ifname, + const virVirtualPortProfileParamsPtr virtPort, + enum virVirtualPortOp virtPortOp) +{ + int rc; + +# ifndef IFLA_VF_PORT_MAX + + (void)ifname; + (void)virtPort; + (void)virtPortOp; + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Kernel VF Port support was missing at compile time.")); + rc = 1; + +# else /* IFLA_VF_PORT_MAX */ + + int op = PORT_REQUEST_ASSOCIATE; + struct ifla_port_vsi portVsi = { + .vsi_mgr_id = virtPort->u.virtPort8021Qbg.managerID, + .vsi_type_version = virtPort->u.virtPort8021Qbg.typeIDVersion, + }; + bool multicast = true; + int ifindex; + + if (ifaceGetIndex(true, ifname, &ifindex) != 0) { + rc = 1; + goto err_exit; + } + + portVsi.vsi_type_id[2] = virtPort->u.virtPort8021Qbg.typeID >> 16; + portVsi.vsi_type_id[1] = virtPort->u.virtPort8021Qbg.typeID >> 8; + portVsi.vsi_type_id[0] = virtPort->u.virtPort8021Qbg.typeID; + + switch (virtPortOp) { + case ASSOCIATE: + op = PORT_REQUEST_ASSOCIATE; + break; + case DISASSOCIATE: + op = PORT_REQUEST_DISASSOCIATE; + break; + default: + macvtapError(VIR_ERR_INTERNAL_ERROR, + _("operation type %d not supported"), op); + rc = 1; + goto err_exit; + } + + rc = doPortProfileOpCommon(multicast, ifindex, + NULL, + &portVsi, + virtPort->u.virtPort8021Qbg.instanceID, + NULL, + PORT_SELF_VF, + op); + +err_exit: + +# endif /* IFLA_VF_PORT_MAX */ + + return rc; +} + + +# ifdef IFLA_VF_PORT_MAX +static int +getPhysfn(const char *linkdev, + int32_t *vf, + char **physfndev) +{ + int rc = 0; + bool virtfn = false; + + if (virtfn) { + + // XXX: if linkdev is SR-IOV VF, then set vf = VF index + // XXX: and set linkdev = PF device + // XXX: need to use get_physical_function_linux() or + // XXX: something like that to get PF + // XXX: device and figure out VF index + + rc = 1; + + } else { + + /* Not SR-IOV VF: physfndev is linkdev and VF index + * refers to linkdev self + */ + + *vf = PORT_SELF_VF; + *physfndev = (char *)linkdev; + } + + return rc; +} +# endif /* IFLA_VF_PORT_MAX */ + +static int +doPortProfileOp8021Qbh(const char *ifname, + const virVirtualPortProfileParamsPtr virtPort, + const unsigned char *vm_uuid, + enum virVirtualPortOp virtPortOp) +{ + int rc; + +# ifndef IFLA_VF_PORT_MAX + + (void)ifname; + (void)virtPort; + (void)vm_uuid; + (void)virtPortOp; + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Kernel VF Port support was missing at compile time.")); + rc = 1; + +# else /* IFLA_VF_PORT_MAX */ + + char *physfndev; + unsigned char hostuuid[VIR_UUID_BUFLEN]; + int32_t vf; + int op = PORT_REQUEST_ASSOCIATE; + bool multicast = false; + int ifindex; + + rc = virGetHostUUID(hostuuid); + if (rc) + goto err_exit; + + rc = getPhysfn(ifname, &vf, &physfndev); + if (rc) + goto err_exit; + + if (ifaceGetIndex(true, physfndev, &ifindex) != 0) { + rc = 1; + goto err_exit; + } + + switch (virtPortOp) { + case ASSOCIATE: + op = PORT_REQUEST_ASSOCIATE; + break; + case DISASSOCIATE: + op = PORT_REQUEST_DISASSOCIATE; + break; + default: + macvtapError(VIR_ERR_INTERNAL_ERROR, + _("operation type %d not supported"), op); + rc = 1; + goto err_exit; + } + + rc = doPortProfileOpCommon(multicast, ifindex, + virtPort->u.virtPort8021Qbh.profileID, + NULL, + vm_uuid, + hostuuid, + vf, + op); + + switch (virtPortOp) { + case ASSOCIATE: + ifaceUp(ifname); + break; + case DISASSOCIATE: + ifaceDown(ifname); + break; + } + +err_exit: + +# endif /* IFLA_VF_PORT_MAX */ + + return rc; +} /** * associatePortProfile * * @macvtap_ifname: The name of the macvtap device + * @linkdev: The link device in case of macvtap * @virtPort: pointer to the object holding port profile parameters - * @vf: virtual function number, -1 if to be ignored * @vmuuid : the UUID of the virtual machine * * Associate a port on a swtich with a profile. This function @@ -740,15 +1474,14 @@ delMacvtap(const char *ifname, */ static int associatePortProfileId(const char *macvtap_ifname, + const char *linkdev, const virVirtualPortProfileParamsPtr virtPort, - int vf, const unsigned char *vmuuid) { int rc = 0; + VIR_DEBUG("Associating port profile '%p' on link device '%s'", virtPort, macvtap_ifname); - (void)vf; - (void)vmuuid; switch (virtPort->virtPortType) { case VIR_VIRTUALPORT_NONE: @@ -756,11 +1489,14 @@ associatePortProfileId(const char *macvt break; case VIR_VIRTUALPORT_8021QBG: - + rc = doPortProfileOp8021Qbg(macvtap_ifname, virtPort, + ASSOCIATE); break; case VIR_VIRTUALPORT_8021QBH: - + rc = doPortProfileOp8021Qbh(linkdev, virtPort, + vmuuid, + ASSOCIATE); break; } @@ -772,6 +1508,7 @@ associatePortProfileId(const char *macvt * disassociatePortProfile * * @macvtap_ifname: The name of the macvtap device + * @linkdev: The link device in case of macvtap * @virtPort: point to object holding port profile parameters * * Returns 0 in case of success, != 0 otherwise with error @@ -779,9 +1516,11 @@ associatePortProfileId(const char *macvt */ static int disassociatePortProfileId(const char *macvtap_ifname, + const char *linkdev, const virVirtualPortProfileParamsPtr virtPort) { int rc = 0; + VIR_DEBUG("Disassociating port profile id '%p' on link device '%s' ", virtPort, macvtap_ifname); @@ -791,13 +1530,18 @@ disassociatePortProfileId(const char *ma break; case VIR_VIRTUALPORT_8021QBG: - + rc = doPortProfileOp8021Qbg(macvtap_ifname, virtPort, + DISASSOCIATE); break; case VIR_VIRTUALPORT_8021QBH: - + rc = doPortProfileOp8021Qbh(linkdev, virtPort, + NULL, + DISASSOCIATE); break; } return rc; } + +#endif Index: libvirt-acl/src/util/macvtap.h =================================================================== --- libvirt-acl.orig/src/util/macvtap.h +++ libvirt-acl/src/util/macvtap.h @@ -72,6 +72,7 @@ int openMacvtapTap(const char *ifname, char **res_ifname); void delMacvtap(const char *ifname, + const char *linkdev, virVirtualPortProfileParamsPtr virtPortProfile); # endif /* WITH_MACVTAP */

1 0

[libvirt] [PATCH] virDrvStorageVolLookupByKey and virDrvStorageVolLookupByPath should use virStoragePoolPtr as parameter
by Eduardo Otubo 25 May '10

25 May '10

Hello, These two functions, virDrvStorageVolLookupByKey and virDrvStorageVolLookupByPath should use virStoragePoolPtr as parameter instead of virConnectPtr for some few reasons: 1) Should follow the standard virStorage*Ptr parameters like the rest of storage related functions. 2) Functions now are able to access pool structure. This is particularly important for the optimization of the PowerHypervisor phypVolumeLookupByKey function. Thanks, -- Eduardo Otubo Software Engineer Linux Technology Center IBM Systems & Technology Group Mobile: +55 19 8135 0885 eotubo(a)linux.vnet.ibm.com -- diff --git a/src/driver.h b/src/driver.h index 0975b59..bb05306 100644 --- a/src/driver.h +++ b/src/driver.h @@ -798,10 +798,10 @@ typedef virStorageVolPtr (*virDrvStorageVolLookupByName) (virStoragePoolPtr pool, const char *name); typedef virStorageVolPtr - (*virDrvStorageVolLookupByKey) (virConnectPtr pool, + (*virDrvStorageVolLookupByKey) (virStoragePoolPtr pool, const char *key); typedef virStorageVolPtr - (*virDrvStorageVolLookupByPath) (virConnectPtr pool, + (*virDrvStorageVolLookupByPath) (virStoragePoolPtr pool, const char *path); diff --git a/src/libvirt.c b/src/libvirt.c index 9d42c76..c43ce9c 100644 --- a/src/libvirt.c +++ b/src/libvirt.c @@ -8418,11 +8418,12 @@ error: * Returns a storage volume, or NULL if not found / error */ virStorageVolPtr -virStorageVolLookupByKey(virConnectPtr conn, +virStorageVolLookupByKey(virStoragePoolPtr pool, const char *key) { - DEBUG("conn=%p, key=%s", conn, key); + DEBUG("pool=%p, key=%s", pool, key); + virConnectPtr conn = pool->conn; virResetLastError(); if (!VIR_IS_CONNECT(conn)) { @@ -8437,7 +8438,7 @@ virStorageVolLookupByKey(virConnectPtr conn, if (conn->storageDriver && conn->storageDriver->volLookupByKey) { virStorageVolPtr ret; - ret = conn->storageDriver->volLookupByKey (conn, key); + ret = conn->storageDriver->volLookupByKey (pool, key); if (!ret) goto error; return ret; @@ -8461,11 +8462,12 @@ error: * Returns a storage volume, or NULL if not found / error */ virStorageVolPtr -virStorageVolLookupByPath(virConnectPtr conn, +virStorageVolLookupByPath(virStoragePoolPtr pool, const char *path) { - DEBUG("conn=%p, path=%s", conn, path); + DEBUG("pool=%p, path=%s", pool, path); + virConnectPtr conn = pool->conn; virResetLastError(); if (!VIR_IS_CONNECT(conn)) { @@ -8480,7 +8482,7 @@ virStorageVolLookupByPath(virConnectPtr conn, if (conn->storageDriver && conn->storageDriver->volLookupByPath) { virStorageVolPtr ret; - ret = conn->storageDriver->volLookupByPath (conn, path); + ret = conn->storageDriver->volLookupByPath (pool, path); if (!ret) goto error; return ret; diff --git a/src/remote/remote_driver.c b/src/remote/remote_driver.c index 80977a3..12380f4 100644 --- a/src/remote/remote_driver.c +++ b/src/remote/remote_driver.c @@ -5559,9 +5559,10 @@ done: } static virStorageVolPtr -remoteStorageVolLookupByKey (virConnectPtr conn, +remoteStorageVolLookupByKey (virStoragePoolPtr pool, const char *key) { + virConnectPtr conn = pool->conn; virStorageVolPtr vol = NULL; remote_storage_vol_lookup_by_key_args args; remote_storage_vol_lookup_by_key_ret ret; @@ -5586,9 +5587,10 @@ done: } static virStorageVolPtr -remoteStorageVolLookupByPath (virConnectPtr conn, +remoteStorageVolLookupByPath (virStoragePoolPtr pool, const char *path) { + virConnectPtr conn = pool->conn; virStorageVolPtr vol = NULL; remote_storage_vol_lookup_by_path_args args; remote_storage_vol_lookup_by_path_ret ret; diff --git a/src/storage/storage_driver.c b/src/storage/storage_driver.c index b148e39..25fe1d1 100644 --- a/src/storage/storage_driver.c +++ b/src/storage/storage_driver.c @@ -1168,8 +1168,9 @@ cleanup: static virStorageVolPtr -storageVolumeLookupByKey(virConnectPtr conn, +storageVolumeLookupByKey(virStoragePoolPtr pool, const char *key) { + virConnectPtr conn = pool->conn; virStorageDriverStatePtr driver = conn->storagePrivateData; unsigned int i; virStorageVolPtr ret = NULL; @@ -1199,8 +1200,9 @@ storageVolumeLookupByKey(virConnectPtr conn, } static virStorageVolPtr -storageVolumeLookupByPath(virConnectPtr conn, +storageVolumeLookupByPath(virStoragePoolPtr pool, const char *path) { + virConnectPtr conn = pool->conn; virStorageDriverStatePtr driver = conn->storagePrivateData; unsigned int i; virStorageVolPtr ret = NULL; diff --git a/src/test/test_driver.c b/src/test/test_driver.c index 395c8c9..c65e4a0 100644 --- a/src/test/test_driver.c +++ b/src/test/test_driver.c @@ -4251,8 +4251,9 @@ cleanup: static virStorageVolPtr -testStorageVolumeLookupByKey(virConnectPtr conn, +testStorageVolumeLookupByKey(virStoragePoolPtr pool, const char *key) { + virConnectPtr conn = pool->conn; testConnPtr privconn = conn->privateData; unsigned int i; virStorageVolPtr ret = NULL; @@ -4285,8 +4286,9 @@ testStorageVolumeLookupByKey(virConnectPtr conn, } static virStorageVolPtr -testStorageVolumeLookupByPath(virConnectPtr conn, +testStorageVolumeLookupByPath(virStoragePoolPtr pool, const char *path) { + virConnectPtr conn = pool->conn; testConnPtr privconn = conn->privateData; unsigned int i; virStorageVolPtr ret = NULL; diff --git a/src/vbox/vbox_tmpl.c b/src/vbox/vbox_tmpl.c index 6a9a2bf..ce665ef 100644 --- a/src/vbox/vbox_tmpl.c +++ b/src/vbox/vbox_tmpl.c @@ -7547,7 +7547,8 @@ static virStorageVolPtr vboxStorageVolLookupByName(virStoragePoolPtr pool, const return ret; } -static virStorageVolPtr vboxStorageVolLookupByKey(virConnectPtr conn, const char *key) { +static virStorageVolPtr vboxStorageVolLookupByKey(virStoragePoolPtr pool, const char *key) { + virConnectPtr conn = pool->conn; VBOX_OBJECT_CHECK(conn, virStorageVolPtr, NULL); vboxIID *hddIID = NULL; IHardDisk *hardDisk = NULL; @@ -7616,7 +7617,8 @@ cleanup: return ret; } -static virStorageVolPtr vboxStorageVolLookupByPath(virConnectPtr conn, const char *path) { +static virStorageVolPtr vboxStorageVolLookupByPath(virStoragePoolPtr pool, const char *path) { + virConnectPtr conn = pool->conn; VBOX_OBJECT_CHECK(conn, virStorageVolPtr, NULL); PRUnichar *hddPathUtf16 = NULL; IHardDisk *hardDisk = NULL;

2 1

[libvirt] [PATCH v8] vepa: parsing for 802.1Qb{g|h} XML
by Stefan Berger 25 May '10

25 May '10

Below is David Alan's original patch with lots of changes. In particular, it now parses the following two XML descriptions, one for 802.1Qbg and 802.1Qbh and stored the data internally. The actual triggering of the switch setup protocol has not been implemented here but the relevant code to do that should go into the functions associatePortProfileId() and disassociatePortProfileId(). <interface type='direct'> <source dev='eth0.100' mode='vepa'/> <model type='virtio'/> <virtualport type='802.1Qbg'> <parameters managerid='12' typeid='0x123456' typeidversion='1' instanceid='fa9b7fff-b0a0-4893-8e0e-beef4ff18f8f'/> </virtualport> <filterref filter='clean-traffic'/> </interface> <interface type='direct'> <source dev='eth0.100' mode='vepa'/> <model type='virtio'/> <virtualport type='802.1Qbh'> <parameters profileid='my_profile'/> </virtualport> </interface> I'd suggest to use this patch as a base for triggering the setup protocol with the 802.1Qb{g|h} switch. Changes from V7 to V8: - Addressed most of Chris Wright's comments: - indicating error in case virtualport XML node cannot be parsed properly - parsing hex and decimal numbers using virStrToLong_ui() with parameter '0' for base - tgifname (target interface name) variable wasn't necessary to pass to openMacvtapTap function anymore - assigning the virtual port data structure to the virDomainNetDef only if it was previously parsed -> still leaving possibility to start a domain with macvtap but no profile Changes from V6 to V7: - make sure that the error code returned by openMacvtapTap() is a negative number in case the associatePortProfileId() function failed. Changes from V5 to V6: - renaming vsi in the XML to virtualport - replace all occurrences of vsi in the source as well Changes from V4 to V5: - removing mode and MAC address parameters from the functions that will communicate with the hareware diretctly or indirectly Changes from V3 to V4: - moving the associate and disassociate functions to the end of the file for subsequent patches to easier make them generally available for export - passing the macvtap interface name rather than the link device since this otherwise gives funny side effects when using netlink messages where IFLA_IFNAME and IFLA_ADDRESS are specified and the link dev all of a sudden gets the MAC address of the macvtap interface. - Removing rc = -1 error indications in the case of 802.1Qbg|h setup in case we wanted to use hook scripts for the setup and so the setup doesn't fail here. Changes from V2 to V3: - if instance ID UUID is not supplied it will automatically be generated - adapted schema to make instance ID UUID optional - added test case Some of the changes from V1 to V2: - parser and XML generator have been separated into their own functions so they can be re-used elsewhere (passthrough case for example) - Adapted XML parser and generator support the above shown type (802.1Qbg, 802.1Qbh). - Adapted schema to above XML - Adapted test XML to above XML - Passing through the VM's UUID which seems to be necessary for 802.1Qbh -- sorry no host UUID - adding virtual function ID to association function, in case it's necessary to use (for SR-IOV) Signed-off-by: Stefan Berger <stefanb(a)us.ibm.com> >From a945107f047c7cd71f9c1b74fd74c47d8cdc3670 Mon Sep 17 00:00:00 2001 From: David Allan <dallan(a)redhat.com> Date: Fri, 12 Mar 2010 13:25:04 -0500 Subject: [PATCH 1/1] POC of port profile id support * Modified schema per DanPB's feedback * Added test for modified schema --- docs/schemas/domain.rng | 69 ++++++++++++++ src/conf/domain_conf.c | 155 +++++++++++++++++++++++++++++++++ src/conf/domain_conf.h | 35 +++++++ src/qemu/qemu_conf.c | 18 +-- src/qemu/qemu_conf.h | 5 - src/qemu/qemu_driver.c | 17 +-- src/util/macvtap.c | 151 +++++++++++++++++++++++++++----- src/util/macvtap.h | 10 +- tests/domainschemadata/portprofile.xml | 36 +++++++ 9 files changed, 446 insertions(+), 50 deletions(-) create mode 100644 tests/domainschemadata/portprofile.xml Index: libvirt-acl/docs/schemas/domain.rng =================================================================== --- libvirt-acl.orig/docs/schemas/domain.rng +++ libvirt-acl/docs/schemas/domain.rng @@ -817,6 +817,9 @@ </optional> <empty/> </element> + <optional> + <ref name="virtualPortProfile"/> + </optional> <ref name="interface-options"/> </interleave> </group> @@ -902,6 +905,45 @@ </optional> </interleave> </define> + <define name="virtualPortProfile"> + <choice> + <group> + <element name="virtualport"> + <attribute name="type"> + <value>802.1Qbg</value> + </attribute> + <element name="parameters"> + <attribute name="managerid"> + <ref name="uint8range"/> + </attribute> + <attribute name="typeid"> + <ref name="uint24range"/> + </attribute> + <attribute name="typeidversion"> + <ref name="uint8range"/> + </attribute> + <optional> + <attribute name="instanceid"> + <ref name="UUID"/> + </attribute> + </optional> + </element> + </element> + </group> + <group> + <element name="virtualport"> + <attribute name="type"> + <value>802.1Qbh</value> + </attribute> + <element name="parameters"> + <attribute name="profileid"> + <ref name="virtualPortProfileID"/> + </attribute> + </element> + </element> + </group> + </choice> + </define>  @@ -1769,4 +1811,31 @@ <param name="pattern">[a-zA-Z0-9_\.:]+</param> </data> </define> + <define name="uint8range"> + <choice> + <data type="string"> + <param name="pattern">0x[0-9a-fA-F]{1,2}</param> + </data> + <data type="int"> + <param name="minInclusive">0</param> + <param name="maxInclusive">255</param> + </data> + </choice> + </define> + <define name="uint24range"> + <choice> + <data type="string"> + <param name="pattern">0x[0-9a-fA-F]{1,6}</param> + </data> + <data type="int"> + <param name="minInclusive">0</param> + <param name="maxInclusive">16777215</param> + </data> + </choice> + </define> + <define name="virtualPortProfileID"> + <data type="string"> + <param name="maxLength">39</param> + </data> + </define> </grammar> Index: libvirt-acl/src/conf/domain_conf.c =================================================================== --- libvirt-acl.orig/src/conf/domain_conf.c +++ libvirt-acl/src/conf/domain_conf.c @@ -242,6 +242,11 @@ VIR_ENUM_IMPL(virDomainNetdevMacvtap, VI "private", "bridge") +VIR_ENUM_IMPL(virVirtualPort, VIR_VIRTUALPORT_TYPE_LAST, + "none", + "802.1Qbg", + "802.1Qbh") + VIR_ENUM_IMPL(virDomainClockOffset, VIR_DOMAIN_CLOCK_OFFSET_LAST, "utc", "localtime", @@ -1807,6 +1812,190 @@ cleanup: } +static int +virVirtualPortProfileDefParseXML(xmlNodePtr node, + virVirtualPortProfileDefPtr virtPort) +{ + int ret = -1; + char *virtPortType; + char *virtPortManagerID = NULL; + char *virtPortTypeID = NULL; + char *virtPortTypeIDVersion = NULL; + char *virtPortInstanceID = NULL; + char *virtPortProfileID = NULL; + xmlNodePtr cur = node->children; + const char *msg = NULL; + + virtPortType = virXMLPropString(node, "type"); + if (!virtPortType) + return -1; + + while (cur != NULL) { + if (xmlStrEqual(cur->name, BAD_CAST "parameters")) { + + virtPortManagerID = virXMLPropString(cur, "managerid"); + virtPortTypeID = virXMLPropString(cur, "typeid"); + virtPortTypeIDVersion = virXMLPropString(cur, "typeidversion"); + virtPortInstanceID = virXMLPropString(cur, "instanceid"); + virtPortProfileID = virXMLPropString(cur, "profileid"); + + break; + } + + cur = cur->next; + } + + virtPort->virtPortType = VIR_VIRTUALPORT_NONE; + + switch (virVirtualPortTypeFromString(virtPortType)) { + + case VIR_VIRTUALPORT_8021QBG: + if (virtPortManagerID != NULL && virtPortTypeID != NULL && + virtPortTypeIDVersion != NULL) { + unsigned int val; + + if (virStrToLong_ui(virtPortManagerID, NULL, 0, &val)) { + msg = _("cannot parse value of managerid parameter"); + goto err_exit; + } + + if (val > 0xff) { + msg = _("value of managerid out of range"); + goto err_exit; + } + + virtPort->u.virtPort8021Qbg.managerID = (uint8_t)val; + + if (virStrToLong_ui(virtPortTypeID, NULL, 0, &val)) { + msg = _("cannot parse value of typeid parameter"); + goto err_exit; + } + + if (val > 0xffffff) { + msg = _("value for typeid out of range"); + goto err_exit; + } + + virtPort->u.virtPort8021Qbg.typeID = (uint32_t)val; + + if (virStrToLong_ui(virtPortTypeIDVersion, NULL, 0, &val)) { + msg = _("cannot parse value of typeidversion parameter"); + goto err_exit; + } + + if (val > 0xff) { + msg = _("value of typeidversion out of range"); + goto err_exit; + } + + virtPort->u.virtPort8021Qbg.typeIDVersion = (uint8_t)val; + + if (virtPortInstanceID != NULL) { + if (virUUIDParse(virtPortInstanceID, + virtPort->u.virtPort8021Qbg.instanceID)) { + msg = _("cannot parse instanceid parameter as a uuid"); + goto err_exit; + } + } else { + if (virUUIDGenerate(virtPort->u.virtPort8021Qbg.instanceID)) { + msg = _("cannot generate a random uuid for instanceid"); + goto err_exit; + } + } + + virtPort->virtPortType = VIR_VIRTUALPORT_8021QBG; + ret = 0; + } else { + msg = _("a parameter is missing for 802.1Qbg description"); + goto err_exit; + } + break; + + case VIR_VIRTUALPORT_8021QBH: + if (virtPortProfileID != NULL) { + if (virStrcpyStatic(virtPort->u.virtPort8021Qbh.profileID, + virtPortProfileID) != NULL) { + virtPort->virtPortType = VIR_VIRTUALPORT_8021QBH; + ret = 0; + } else { + msg = _("profileid parameter too long"); + goto err_exit; + } + } else { + msg = _("profileid parameter is missing for 802.1Qbh descripion"); + goto err_exit; + } + break; + + + default: + case VIR_VIRTUALPORT_NONE: + case VIR_VIRTUALPORT_TYPE_LAST: + msg = _("unknown virtualport type"); + goto err_exit; + break; + } + +err_exit: + + if (msg) + virDomainReportError(VIR_ERR_INTERNAL_ERROR, "%s", msg); + + VIR_FREE(virtPortManagerID); + VIR_FREE(virtPortTypeID); + VIR_FREE(virtPortTypeIDVersion); + VIR_FREE(virtPortInstanceID); + VIR_FREE(virtPortProfileID); + VIR_FREE(virtPortType); + + return ret; +} + + +static void +virVirtualPortProfileFormat(virBufferPtr buf, + virVirtualPortProfileDefPtr virtPort, + const char *indent) +{ + char uuidstr[VIR_UUID_STRING_BUFLEN]; + + if (virtPort->virtPortType == VIR_VIRTUALPORT_NONE) + return; + + virBufferVSprintf(buf, "%s<virtualport type='%s'>\n", + indent, + virVirtualPortTypeToString(virtPort->virtPortType)); + + switch (virtPort->virtPortType) { + case VIR_VIRTUALPORT_NONE: + case VIR_VIRTUALPORT_TYPE_LAST: + break; + + case VIR_VIRTUALPORT_8021QBG: + virUUIDFormat(virtPort->u.virtPort8021Qbg.instanceID, + uuidstr); + virBufferVSprintf(buf, + "%s <parameters managerid='%d' typeid='%d' " + "typeidversion='%d' instanceid='%s'/>\n", + indent, + virtPort->u.virtPort8021Qbg.managerID, + virtPort->u.virtPort8021Qbg.typeID, + virtPort->u.virtPort8021Qbg.typeIDVersion, + uuidstr); + break; + + case VIR_VIRTUALPORT_8021QBH: + virBufferVSprintf(buf, + "%s <parameters profileid='%s'/>\n", + indent, + virtPort->u.virtPort8021Qbh.profileID); + break; + } + + virBufferVSprintf(buf, "%s</virtualport>\n", indent); +} + + /* Parse the XML definition for a network interface * @param node XML nodeset to parse for net definition * @return 0 on success, -1 on failure @@ -1832,6 +2021,8 @@ virDomainNetDefParseXML(virCapsPtr caps, char *devaddr = NULL; char *mode = NULL; virNWFilterHashTablePtr filterparams = NULL; + virVirtualPortProfileDef virtPort; + bool virtPortParsed = false; if (VIR_ALLOC(def) < 0) { virReportOOMError(); @@ -1873,6 +2064,12 @@ virDomainNetDefParseXML(virCapsPtr caps, xmlStrEqual(cur->name, BAD_CAST "source")) { dev = virXMLPropString(cur, "dev"); mode = virXMLPropString(cur, "mode"); + } else if ((virtPortParsed == false) && + (def->type == VIR_DOMAIN_NET_TYPE_DIRECT) && + xmlStrEqual(cur->name, BAD_CAST "virtualport")) { + if (virVirtualPortProfileDefParseXML(cur, &virtPort)) + goto error; + virtPortParsed = true; } else if ((network == NULL) && ((def->type == VIR_DOMAIN_NET_TYPE_SERVER) || (def->type == VIR_DOMAIN_NET_TYPE_CLIENT) || @@ -2048,6 +2245,9 @@ virDomainNetDefParseXML(virCapsPtr caps, } else def->data.direct.mode = VIR_DOMAIN_NETDEV_MACVTAP_MODE_VEPA; + if (virtPortParsed) + def->data.direct.virtPortProfile = virtPort; + def->data.direct.linkdev = dev; dev = NULL; @@ -5140,6 +5340,8 @@ virDomainNetDefFormat(virBufferPtr buf, virBufferVSprintf(buf, " mode='%s'", virDomainNetdevMacvtapTypeToString(def->data.direct.mode)); virBufferAddLit(buf, "/>\n"); + virVirtualPortProfileFormat(buf, &def->data.direct.virtPortProfile, + " "); break; case VIR_DOMAIN_NET_TYPE_USER: Index: libvirt-acl/src/conf/domain_conf.h =================================================================== --- libvirt-acl.orig/src/conf/domain_conf.h +++ libvirt-acl/src/conf/domain_conf.h @@ -259,6 +259,39 @@ enum virDomainNetdevMacvtapType { }; +enum virVirtualPortType { + VIR_VIRTUALPORT_NONE, + VIR_VIRTUALPORT_8021QBG, + VIR_VIRTUALPORT_8021QBH, + + VIR_VIRTUALPORT_TYPE_LAST, +}; + +# ifdef IFLA_VF_PORT_PROFILE_MAX +# define LIBVIRT_IFLA_VF_PORT_PROFILE_MAX IFLA_VF_PORT_PROFILE_MAX +# else +# define LIBVIRT_IFLA_VF_PORT_PROFILE_MAX 40 +# endif + +/* profile data for macvtap (VEPA) */ +typedef struct _virVirtualPortProfileDef virVirtualPortProfileDef; +typedef virVirtualPortProfileDef *virVirtualPortProfileDefPtr; +struct _virVirtualPortProfileDef { + enum virVirtualPortType virtPortType; + union { + struct { + uint8_t managerID; + uint32_t typeID; // 24 bit valid + uint8_t typeIDVersion; + unsigned char instanceID[VIR_UUID_BUFLEN]; + } virtPort8021Qbg; + struct { + char profileID[LIBVIRT_IFLA_VF_PORT_PROFILE_MAX]; + } virtPort8021Qbh; + } u; +}; + + /* Stores the virtual network interface configuration */ typedef struct _virDomainNetDef virDomainNetDef; typedef virDomainNetDef *virDomainNetDefPtr; @@ -290,6 +323,7 @@ struct _virDomainNetDef { struct { char *linkdev; int mode; + virVirtualPortProfileDef virtPortProfile; } direct; } data; char *ifname; @@ -1089,6 +1123,7 @@ VIR_ENUM_DECL(virDomainSeclabel) VIR_ENUM_DECL(virDomainClockOffset) VIR_ENUM_DECL(virDomainNetdevMacvtap) +VIR_ENUM_DECL(virVirtualPort) VIR_ENUM_DECL(virDomainTimerName) VIR_ENUM_DECL(virDomainTimerTrack) Index: libvirt-acl/src/util/macvtap.c =================================================================== --- libvirt-acl.orig/src/util/macvtap.c +++ libvirt-acl/src/util/macvtap.c @@ -43,6 +43,7 @@ # include "util.h" # include "memory.h" +# include "logging.h" # include "macvtap.h" # include "interface.h" # include "conf/domain_conf.h" @@ -57,6 +58,16 @@ # define MACVTAP_NAME_PREFIX "macvtap" # define MACVTAP_NAME_PATTERN "macvtap%d" + +static int associatePortProfileId(const char *macvtap_ifname, + const virVirtualPortProfileDefPtr virtPort, + int vf, + const unsigned char *vmuuid); + +static int disassociatePortProfileId(const char *macvtap_ifname, + const virVirtualPortProfileDefPtr virtPort); + + static int nlOpen(void) { int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE); @@ -567,39 +578,36 @@ configMacvtapTap(int tapfd, int vnet_hdr return 0; } - - /** * openMacvtapTap: * Create an instance of a macvtap device and open its tap character * device. - * @tgifname: Interface name that the macvtap is supposed to have. May - * be NULL if this function is supposed to choose a name - * @macaddress: The MAC address for the macvtap device - * @linkdev: The interface name of the NIC to connect to the external bridge - * @mode_str: String describing the mode. Valid are 'bridge', 'vepa' and - * 'private'. + * @net: pointer to the virDomainNetDef object describing the direct + * type if an interface * @res_ifname: Pointer to a string pointer where the actual name of the * interface will be stored into if everything succeeded. It is up * to the caller to free the string. + * @vnet_hdr: Whether to enable IFF_VNET_HDR on the interface + * @vmuuid: The (raw) UUID of the VM * * Returns file descriptor of the tap device in case of success, * negative value otherwise with error reported. * + * Open a macvtap device and trigger the switch setup protocol + * if valid port profile parameters were provided. */ int -openMacvtapTap(const char *tgifname, - const unsigned char *macaddress, - const char *linkdev, - int mode, +openMacvtapTap(virDomainNetDefPtr net, char **res_ifname, - int vnet_hdr) + int vnet_hdr, + const unsigned char *vmuuid) { const char *type = "macvtap"; + const char *tgifname = net->ifname; int c, rc; char ifname[IFNAMSIZ]; int retries, do_retry = 0; - uint32_t macvtapMode = macvtapModeFromInt(mode); + uint32_t macvtapMode = macvtapModeFromInt(net->data.direct.mode); const char *cr_ifname; int ifindex; @@ -616,7 +624,7 @@ openMacvtapTap(const char *tgifname, return -1; } cr_ifname = tgifname; - rc = link_add(type, macaddress, 6, tgifname, linkdev, + rc = link_add(type, net->mac, 6, tgifname, net->data.direct.linkdev, macvtapMode, &do_retry); if (rc) return -1; @@ -626,7 +634,8 @@ create_name: for (c = 0; c < 8192; c++) { snprintf(ifname, sizeof(ifname), MACVTAP_NAME_PATTERN, c); if (ifaceGetIndex(false, ifname, &ifindex) == ENODEV) { - rc = link_add(type, macaddress, 6, ifname, linkdev, + rc = link_add(type, net->mac, 6, ifname, + net->data.direct.linkdev, macvtapMode, &do_retry); if (rc == 0) break; @@ -639,6 +648,14 @@ create_name: cr_ifname = ifname; } + if (associatePortProfileId(cr_ifname, + &net->data.direct.virtPortProfile, + -1, + vmuuid) != 0) { + rc = -1; + goto link_del_exit; + } + rc = ifaceUp(cr_ifname); if (rc != 0) { virReportSystemError(errno, @@ -647,7 +664,7 @@ create_name: "MAC address"), cr_ifname); rc = -1; - goto link_del_exit; + goto disassociate_exit; } rc = openTap(cr_ifname, 10); @@ -656,14 +673,18 @@ create_name: if (configMacvtapTap(rc, vnet_hdr) < 0) { close(rc); rc = -1; - goto link_del_exit; + goto disassociate_exit; } *res_ifname = strdup(cr_ifname); } else - goto link_del_exit; + goto disassociate_exit; return rc; +disassociate_exit: + disassociatePortProfileId(cr_ifname, + &net->data.direct.virtPortProfile); + link_del_exit: link_del(cr_ifname); @@ -673,14 +694,102 @@ link_del_exit: /** * delMacvtap: - * @ifname : The name of the macvtap interface + * @net: pointer to virDomainNetDef object * - * Delete an interface given its name. + * Delete an interface given its name. Disassociate + * it with the switch if port profile parameters + * were provided. */ void -delMacvtap(const char *ifname) +delMacvtap(virDomainNetDefPtr net) { - link_del(ifname); + if (net->ifname) { + disassociatePortProfileId(net->ifname, + &net->data.direct.virtPortProfile); + link_del(net->ifname); + } } #endif + + +/** + * associatePortProfile + * + * @macvtap_ifname: The name of the macvtap device + * @virtPort: pointer to the object holding port profile parameters + * @vf: virtual function number, -1 if to be ignored + * @vmuuid : the UUID of the virtual machine + * + * Associate a port on a swtich with a profile. This function + * may notify a kernel driver or an external daemon to run + * the setup protocol. If profile parameters were not supplied + * by the user, then this function returns without doing + * anything. + * + * Returns 0 in case of success, != 0 otherwise with error + * having been reported. + */ +static int +associatePortProfileId(const char *macvtap_ifname, + const virVirtualPortProfileDefPtr virtPort, + int vf, + const unsigned char *vmuuid) +{ + int rc = 0; + VIR_DEBUG("Associating port profile '%p' on link device '%s'", + virtPort, macvtap_ifname); + (void)vf; + (void)vmuuid; + + switch (virtPort->virtPortType) { + case VIR_VIRTUALPORT_NONE: + case VIR_VIRTUALPORT_TYPE_LAST: + break; + + case VIR_VIRTUALPORT_8021QBG: + + break; + + case VIR_VIRTUALPORT_8021QBH: + + break; + } + + return rc; +} + + +/** + * disassociatePortProfile + * + * @macvtap_ifname: The name of the macvtap device + * @virtPort: point to object holding port profile parameters + * + * Returns 0 in case of success, != 0 otherwise with error + * having been reported. + */ +static int +disassociatePortProfileId(const char *macvtap_ifname, + const virVirtualPortProfileDefPtr virtPort) +{ + int rc = 0; + VIR_DEBUG("Disassociating port profile id '%p' on link device '%s' ", + virtPort, macvtap_ifname); + + switch (virtPort->virtPortType) { + case VIR_VIRTUALPORT_NONE: + case VIR_VIRTUALPORT_TYPE_LAST: + break; + + case VIR_VIRTUALPORT_8021QBG: + + break; + + case VIR_VIRTUALPORT_8021QBH: + + break; + } + + return rc; +} Index: libvirt-acl/src/util/macvtap.h =================================================================== --- libvirt-acl.orig/src/util/macvtap.h +++ libvirt-acl/src/util/macvtap.h @@ -27,15 +27,14 @@ # if defined(WITH_MACVTAP) # include "internal.h" +# include "conf/domain_conf.h" -int openMacvtapTap(const char *ifname, - const unsigned char *macaddress, - const char *linkdev, - int mode, +int openMacvtapTap(virDomainNetDefPtr net, char **res_ifname, - int vnet_hdr); + int vnet_hdr, + const unsigned char *vmuuid); -void delMacvtap(const char *ifname); +void delMacvtap(virDomainNetDefPtr net); # endif /* WITH_MACVTAP */ Index: libvirt-acl/tests/domainschemadata/portprofile.xml =================================================================== --- /dev/null +++ libvirt-acl/tests/domainschemadata/portprofile.xml @@ -0,0 +1,36 @@ +<domain type='lxc'> + <name>portprofile</name> + <uuid>00000000-0000-0000-0000-000000000000</uuid> + <memory>1048576</memory> + <os> + <type>exe</type> + <init>/sh</init> + </os> + <devices> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + <virtualport type='802.1Qbg'> + <parameters managerid='12' typeid='1193046' typeidversion='1' + instanceid='fa9b7fff-b0a0-4893-8e0e-beef4ff18f8f'/> + </virtualport> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + <virtualport type='802.1Qbg'> + <parameters managerid='12' typeid='1193046' typeidversion='1'/> + </virtualport> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + <virtualport type='802.1Qbh'> + <parameters profileid='my_profile'/> + </virtualport> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + </interface> + </devices> +</domain> Index: libvirt-acl/src/qemu/qemu_conf.h =================================================================== --- libvirt-acl.orig/src/qemu/qemu_conf.h +++ libvirt-acl/src/qemu/qemu_conf.h @@ -274,9 +274,8 @@ qemudOpenVhostNet(virDomainNetDefPtr net int qemudPhysIfaceConnect(virConnectPtr conn, struct qemud_driver *driver, virDomainNetDefPtr net, - char *linkdev, - int brmode, - unsigned long long qemuCmdFlags); + unsigned long long qemuCmdFlags, + const unsigned char *vmuuid); int qemudProbeMachineTypes (const char *binary, virCapsGuestMachinePtr **machines, Index: libvirt-acl/src/qemu/qemu_driver.c =================================================================== --- libvirt-acl.orig/src/qemu/qemu_driver.c +++ libvirt-acl/src/qemu/qemu_driver.c @@ -3702,10 +3702,8 @@ static void qemudShutdownVMDaemon(struct def = vm->def; for (i = 0; i < def->nnets; i++) { virDomainNetDefPtr net = def->nets[i]; - if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) { - if (net->ifname) - delMacvtap(net->ifname); - } + if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) + delMacvtap(net); } #endif @@ -7464,9 +7462,8 @@ static int qemudDomainAttachNetDevice(vi } if ((tapfd = qemudPhysIfaceConnect(conn, driver, net, - net->data.direct.linkdev, - net->data.direct.mode, - qemuCmdFlags)) < 0) + qemuCmdFlags, + vm->def->uuid)) < 0) return -1; } @@ -8509,10 +8506,8 @@ qemudDomainDetachNetDevice(struct qemud_ virNWFilterTearNWFilter(detach); #if WITH_MACVTAP - if (detach->type == VIR_DOMAIN_NET_TYPE_DIRECT) { - if (detach->ifname) - delMacvtap(detach->ifname); - } + if (detach->type == VIR_DOMAIN_NET_TYPE_DIRECT) + delMacvtap(detach); #endif if ((driver->macFilter) && (detach->ifname != NULL)) { Index: libvirt-acl/src/qemu/qemu_conf.c =================================================================== --- libvirt-acl.orig/src/qemu/qemu_conf.c +++ libvirt-acl/src/qemu/qemu_conf.c @@ -1470,9 +1470,8 @@ int qemudPhysIfaceConnect(virConnectPtr conn, struct qemud_driver *driver, virDomainNetDefPtr net, - char *linkdev, - int brmode, - unsigned long long qemuCmdFlags) + unsigned long long qemuCmdFlags, + const unsigned char *vmuuid) { int rc; #if WITH_MACVTAP @@ -1484,8 +1483,7 @@ qemudPhysIfaceConnect(virConnectPtr conn net->model && STREQ(net->model, "virtio")) vnet_hdr = 1; - rc = openMacvtapTap(net->ifname, net->mac, linkdev, brmode, - &res_ifname, vnet_hdr); + rc = openMacvtapTap(net, &res_ifname, vnet_hdr, vmuuid); if (rc >= 0) { VIR_FREE(net->ifname); net->ifname = res_ifname; @@ -1505,17 +1503,16 @@ qemudPhysIfaceConnect(virConnectPtr conn if (err) { close(rc); rc = -1; - delMacvtap(net->ifname); + delMacvtap(net); } } } #else (void)conn; (void)net; - (void)linkdev; - (void)brmode; (void)qemuCmdFlags; (void)driver; + (void)vmuuid; qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("No support for macvtap device")); rc = -1; @@ -4135,9 +4132,8 @@ int qemudBuildCommandLine(virConnectPtr goto no_memory; } else if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) { int tapfd = qemudPhysIfaceConnect(conn, driver, net, - net->data.direct.linkdev, - net->data.direct.mode, - qemuCmdFlags); + qemuCmdFlags, + def->uuid); if (tapfd < 0) goto error;

6 8

[libvirt] [PATCH] Query block allocation extent from QEMU monitor
by Daniel P. Berrange 25 May '10

25 May '10

The virDomainGetBlockInfo API allows query physical block extent and allocated block extent. These are normally the same value unless storing a special format like qcow2 inside a block device. In this scenario we can query QEMU to get the actual allocated extent. Since last time: - Return fatal error in text monitor - Only invoke monitor command for block devices - Fix error handling JSON code * src/qemu/qemu_driver.c: Fill in block aloction extent when VM is running * src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h, src/qemu/qemu_monitor_json.c, src/qemu/qemu_monitor_json.h, src/qemu/qemu_monitor_text.c, src/qemu/qemu_monitor_text.h: Add API to query the highest block extent via info blockstats --- src/qemu/qemu_driver.c | 33 ++++++++++++--- src/qemu/qemu_monitor.c | 16 +++++++ src/qemu/qemu_monitor.h | 4 ++ src/qemu/qemu_monitor_json.c | 94 ++++++++++++++++++++++++++++++++++++++++++ src/qemu/qemu_monitor_json.h | 3 + src/qemu/qemu_monitor_text.c | 10 ++++ src/qemu/qemu_monitor_text.h | 4 +- 7 files changed, 156 insertions(+), 8 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 4ef2f57..356c4be 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -9651,6 +9651,7 @@ static int qemuDomainGetBlockInfo(virDomainPtr dom, int fd = -1; off_t end; virStorageFileMetadata meta; + virDomainDiskDefPtr disk = NULL; struct stat sb; int i; @@ -9677,19 +9678,17 @@ static int qemuDomainGetBlockInfo(virDomainPtr dom, for (i = 0 ; i < vm->def->ndisks ; i++) { if (vm->def->disks[i]->src != NULL && STREQ (vm->def->disks[i]->src, path)) { - ret = 0; + disk = vm->def->disks[i]; break; } } - if (ret != 0) { + if (!disk) { qemuReportError(VIR_ERR_INVALID_ARG, _("invalid path %s not assigned to domain"), path); goto cleanup; } - ret = -1; - /* The path is correct, now try to open it and get its size. */ fd = open (path, O_RDONLY); if (fd == -1) { @@ -9740,11 +9739,31 @@ static int qemuDomainGetBlockInfo(virDomainPtr dom, if (meta.capacity) info->capacity = meta.capacity; - /* XXX allocation will need to be pulled from QEMU for - * the qcow inside LVM case */ + /* Set default value .. */ info->allocation = info->physical; - ret = 0; + /* ..but if guest is running & not using raw + disk format and on a block device, then query + highest allocated extent from QEMU */ + if (virDomainObjIsActive(vm) && + disk->type == VIR_DOMAIN_DISK_TYPE_BLOCK && + meta.format != VIR_STORAGE_FILE_RAW && + S_ISBLK(sb.st_mode)) { + qemuDomainObjPrivatePtr priv = vm->privateData; + if (qemuDomainObjBeginJob(vm) < 0) + goto cleanup; + + qemuDomainObjEnterMonitor(vm); + ret = qemuMonitorGetBlockExtent(priv->mon, + disk->info.alias, + &info->allocation); + qemuDomainObjExitMonitor(vm); + + if (qemuDomainObjEndJob(vm) == 0) + vm = NULL; + } else { + ret = 0; + } cleanup: if (fd != -1) diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c index 582225e..efaf74a 100644 --- a/src/qemu/qemu_monitor.c +++ b/src/qemu/qemu_monitor.c @@ -1009,6 +1009,22 @@ int qemuMonitorGetBlockStatsInfo(qemuMonitorPtr mon, return ret; } +int qemuMonitorGetBlockExtent(qemuMonitorPtr mon, + const char *devname, + unsigned long long *extent) +{ + int ret; + DEBUG("mon=%p, fd=%d, devname=%p", + mon, mon->fd, devname); + + if (mon->json) + ret = qemuMonitorJSONGetBlockExtent(mon, devname, extent); + else + ret = qemuMonitorTextGetBlockExtent(mon, devname, extent); + + return ret; +} + int qemuMonitorSetVNCPassword(qemuMonitorPtr mon, const char *password) diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h index 7b1589e..adfb3bc 100644 --- a/src/qemu/qemu_monitor.h +++ b/src/qemu/qemu_monitor.h @@ -185,6 +185,10 @@ int qemuMonitorGetBlockStatsInfo(qemuMonitorPtr mon, long long *wr_bytes, long long *errs); +int qemuMonitorGetBlockExtent(qemuMonitorPtr mon, + const char *devname, + unsigned long long *extent); + int qemuMonitorSetVNCPassword(qemuMonitorPtr mon, const char *password); diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c index 6d8f328..31a66f1 100644 --- a/src/qemu/qemu_monitor_json.c +++ b/src/qemu/qemu_monitor_json.c @@ -1186,6 +1186,100 @@ cleanup: } +int qemuMonitorJSONGetBlockExtent(qemuMonitorPtr mon, + const char *devname, + unsigned long long *extent) +{ + int ret = -1; + int i; + int found = 0; + virJSONValuePtr cmd = qemuMonitorJSONMakeCommand("query-blockstats", + NULL); + virJSONValuePtr reply = NULL; + virJSONValuePtr devices; + + *extent = 0; + + if (!cmd) + return -1; + + if (qemuMonitorJSONCommand(mon, cmd, &reply) < 0) + goto cleanup; + + if (qemuMonitorJSONCheckError(cmd, reply) < 0) + goto cleanup; + + devices = virJSONValueObjectGet(reply, "return"); + if (!devices || devices->type != VIR_JSON_TYPE_ARRAY) { + qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("blockstats reply was missing device list")); + goto cleanup; + } + + for (i = 0 ; i < virJSONValueArraySize(devices) ; i++) { + virJSONValuePtr dev = virJSONValueArrayGet(devices, i); + virJSONValuePtr stats; + virJSONValuePtr parent; + const char *thisdev; + if (!dev || dev->type != VIR_JSON_TYPE_OBJECT) { + qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("blockstats device entry was not in expected format")); + goto cleanup; + } + + if ((thisdev = virJSONValueObjectGetString(dev, "device")) == NULL) { + qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("blockstats device entry was not in expected format")); + goto cleanup; + } + + /* New QEMU has separate names for host & guest side of the disk + * and libvirt gives the host side a 'drive-' prefix. The passed + * in devname is the guest side though + */ + if (STRPREFIX(thisdev, QEMU_DRIVE_HOST_PREFIX)) + thisdev += strlen(QEMU_DRIVE_HOST_PREFIX); + + if (STRNEQ(thisdev, devname)) + continue; + + found = 1; + if ((parent = virJSONValueObjectGet(dev, "parent")) == NULL || + parent->type != VIR_JSON_TYPE_OBJECT) { + qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("blockstats parent entry was not in expected format")); + goto cleanup; + } + + if ((stats = virJSONValueObjectGet(parent, "stats")) == NULL || + stats->type != VIR_JSON_TYPE_OBJECT) { + qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("blockstats stats entry was not in expected format")); + goto cleanup; + } + + if (virJSONValueObjectGetNumberUlong(stats, "wr_highest_offset", extent) < 0) { + qemuReportError(VIR_ERR_INTERNAL_ERROR, + _("cannot read %s statistic"), + "wr_highest_offset"); + goto cleanup; + } + } + + if (!found) { + qemuReportError(VIR_ERR_INTERNAL_ERROR, + _("cannot find statistics for device '%s'"), devname); + goto cleanup; + } + ret = 0; + +cleanup: + virJSONValueFree(cmd); + virJSONValueFree(reply); + return ret; +} + + int qemuMonitorJSONSetVNCPassword(qemuMonitorPtr mon, const char *password) { diff --git a/src/qemu/qemu_monitor_json.h b/src/qemu/qemu_monitor_json.h index 26fc865..14597f4 100644 --- a/src/qemu/qemu_monitor_json.h +++ b/src/qemu/qemu_monitor_json.h @@ -56,6 +56,9 @@ int qemuMonitorJSONGetBlockStatsInfo(qemuMonitorPtr mon, long long *wr_req, long long *wr_bytes, long long *errs); +int qemuMonitorJSONGetBlockExtent(qemuMonitorPtr mon, + const char *devname, + unsigned long long *extent); int qemuMonitorJSONSetVNCPassword(qemuMonitorPtr mon, diff --git a/src/qemu/qemu_monitor_text.c b/src/qemu/qemu_monitor_text.c index d725d6d..72e3fd5 100644 --- a/src/qemu/qemu_monitor_text.c +++ b/src/qemu/qemu_monitor_text.c @@ -711,6 +711,16 @@ int qemuMonitorTextGetBlockStatsInfo(qemuMonitorPtr mon, } +int qemuMonitorTextGetBlockExtent(qemuMonitorPtr mon ATTRIBUTE_UNUSED, + const char *devname ATTRIBUTE_UNUSED, + unsigned long long *extent ATTRIBUTE_UNUSED) +{ + qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("unable to query block extent with this QEMU")); + return -1; +} + + static int qemuMonitorSendVNCPassphrase(qemuMonitorPtr mon ATTRIBUTE_UNUSED, qemuMonitorMessagePtr msg, diff --git a/src/qemu/qemu_monitor_text.h b/src/qemu/qemu_monitor_text.h index 2a62c7e..6fb7d7a 100644 --- a/src/qemu/qemu_monitor_text.h +++ b/src/qemu/qemu_monitor_text.h @@ -55,7 +55,9 @@ int qemuMonitorTextGetBlockStatsInfo(qemuMonitorPtr mon, long long *wr_req, long long *wr_bytes, long long *errs); - +int qemuMonitorTextGetBlockExtent(qemuMonitorPtr mon, + const char *devname, + unsigned long long *extent); int qemuMonitorTextSetVNCPassword(qemuMonitorPtr mon, const char *password); -- 1.6.6.1

3 6

[libvirt] [PATCH] lxcSetSchedulerParameters: reverse order of tests; improve a diagnostic
by Jim Meyering 25 May '10

25 May '10

Investigating something else in the vicinity, I noticed that the ordering of tests was backwards. Here's the fix for that. Also, looking at the following code, I saw that failure of virCgroupSetCpuShares could evoke no diagnostic. Now it does. >From bc3404d9f12c42cf883a43395fee6fc14c952b2c Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Tue, 11 May 2010 15:43:32 +0200 Subject: [PATCH] lxcSetSchedulerParameters: reverse order of tests; diagnose a failure * src/lxc/lxc_driver.c (lxcSetSchedulerParameters): Ensure that "->field" is "cpu_shares" before possibly giving a diagnostic about a type for a "cpu_shares" value. Also, virCgroupSetCpuShares could fail without evoking a diagnostic. Add one. --- src/lxc/lxc_driver.c | 19 ++++++++++++------- 1 files changed, 12 insertions(+), 7 deletions(-) diff --git a/src/lxc/lxc_driver.c b/src/lxc/lxc_driver.c index fc0df37..5636eee 100644 --- a/src/lxc/lxc_driver.c +++ b/src/lxc/lxc_driver.c @@ -2054,18 +2054,23 @@ static int lxcSetSchedulerParameters(virDomainPtr domain, for (i = 0; i < nparams; i++) { virSchedParameterPtr param = &params[i]; + + if (STRNEQ(param->field, "cpu_shares")) { + lxcError(VIR_ERR_INVALID_ARG, + _("Invalid parameter `%s'"), param->field); + goto cleanup; + } + if (param->type != VIR_DOMAIN_SCHED_FIELD_ULLONG) { lxcError(VIR_ERR_INVALID_ARG, "%s", - _("Invalid type for cpu_shares tunable, expected a 'ullong'")); + _("Invalid type for cpu_shares tunable, expected a 'ullong'")); goto cleanup; } - if (STREQ(param->field, "cpu_shares")) { - if (virCgroupSetCpuShares(group, params[i].value.ul) != 0) - goto cleanup; - } else { - lxcError(VIR_ERR_INVALID_ARG, - _("Invalid parameter `%s'"), param->field); + int rc = virCgroupSetCpuShares(group, params[i].value.ul); + if (rc != 0) { + virReportSystemError(-rc, _("failed to set cpu_shares=%llu"), + params[i].value.ul); goto cleanup; } } -- 1.7.1.189.g07419

2 3

[libvirt] [v4 PATCH] add 802.1Qbh handling for port-profiles based on Stefan's previous patches
by Scott Feldman 25 May '10

25 May '10

From: Scott Feldman <scofeldm(a)cisco.com> This patch builds on the work recently posted by Stefan Berger. It builds on top of Stefan's three posted patches: [PATCH v9] vepa: parsing for 802.1Qb{g|h} XML [RFC][PATCH 1/3] vepa+vsi: Introduce dependency on libnl [PATCH v3] Add host UUID (to libvirt capabilities) Stefan's RFC patches 2/3 and 3/3 are incorporated into my patch. Changes from v3 to v4: - move from Stafan's 802.1Qb{g|h} XML v8 to v9 - move hostuuid and vf index calcs to inside doPortProfileOp8021Qbh Changes from v2 to v3: - remove debug fprintfs - use virGetHostUUID (thanks Stefan!) - fix compile issue when latest if_link.h isn't available - change poll timeout to 10s, at 1/8 intervals - if polling times out, log msg and return -ETIMEDOUT Changes from v1 to v2: - Add Stefan's code for getPortProfileStatus - Poll for up to 2 secs for port-profile status, at 1/8 sec intervals: - if status indicates error, abort openMacvtapTap - if status indicates success, exit polling - if status is "in-progress" after 2 secs of polling, exit polling loop silently, without error My patch finishes out the 802.1Qbh parts, which Stefan had mostly complete. I've tested using the recent kernel updates for VF_PORT netlink msgs and enic for Cisco's 10G Ethernet NIC. I tested many VMs, each with several direct interfaces, each configured with a port-profile per the XML. VM-to-VM, and VM-to-external work as expected. VM-to-VM on same host (using same NIC) works same as VM-to-VM where VMs are on diff hosts. I'm able to change settings on the port-profile while the VM is running to change the virtual port behaviour. For example, adjusting a QoS setting like rate limit. All VMs with interfaces using that port-profile immediatly see the effect of the change to the port-profile. I don't have a SR-IOV device to test so source dev is a non-SR-IOV device, but most of the code paths include support for specifing the source dev and VF index. We'll need to complete this by discovering the PF given the VF linkdev. Once we have the PF, we'll also have the VF index. All this info- mation is available from sysfs. Signed-off-by: Scott Feldman <scofeldm(a)cisco.com> --- configure.ac | 16 + src/qemu/qemu_conf.c | 2 src/qemu/qemu_driver.c | 4 src/util/macvtap.c | 778 +++++++++++++++++++++++++++++++++++++++++++++++- src/util/macvtap.h | 1 5 files changed, 785 insertions(+), 16 deletions(-) diff --git a/configure.ac b/configure.ac index 36ba703..885b0ae 100644 --- a/configure.ac +++ b/configure.ac @@ -2005,13 +2005,26 @@ if test "$with_macvtap" != "no" ; then fi AM_CONDITIONAL([WITH_MACVTAP], [test "$with_macvtap" = "yes"]) +AC_TRY_COMPILE([ #include <sys/socket.h> + #include <linux/rtnetlink.h> ], + [ int x = IFLA_PORT_MAX; ], + [ with_virtualport=yes ], + [ with_virtualport=no ]) +if test "$with_virtualport" = "yes"; then + val=1 +else + val=0 +fi +AC_DEFINE_UNQUOTED([WITH_VIRTUALPORT], $val, [whether vsi vepa support is enabled]) +AM_CONDITIONAL([WITH_VIRTUALPORT], [test "$with_virtualport" = "yes"]) + dnl netlink library LIBNL_CFLAGS="" LIBNL_LIBS="" -if test "$with_macvtap" = "yes"; then +if test "$with_macvtap" = "yes" || "$with_virtualport" = "yes"; then PKG_CHECK_MODULES([LIBNL], [libnl-1 >= $LIBNL_REQUIRED], [ ], [ AC_MSG_ERROR([libnl >= $LIBNL_REQUIRED is required for macvtap support]) @@ -2084,6 +2097,7 @@ AC_MSG_NOTICE([ Network: $with_network]) AC_MSG_NOTICE([Libvirtd: $with_libvirtd]) AC_MSG_NOTICE([ netcf: $with_netcf]) AC_MSG_NOTICE([ macvtap: $with_macvtap]) +AC_MSG_NOTICE([virtport: $with_virtualport]) AC_MSG_NOTICE([]) AC_MSG_NOTICE([Storage Drivers]) AC_MSG_NOTICE([]) diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c index 111fa6e..95d4c1a 100644 --- a/src/qemu/qemu_conf.c +++ b/src/qemu/qemu_conf.c @@ -1505,7 +1505,7 @@ qemudPhysIfaceConnect(virConnectPtr conn, if (err) { close(rc); rc = -1; - delMacvtap(net->ifname, + delMacvtap(net->ifname, net->data.direct.linkdev, &net->data.direct.virtPortProfile); } } diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index f02bf3b..f1a0d0e 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -3679,7 +3679,7 @@ static void qemudShutdownVMDaemon(struct qemud_driver *driver, for (i = 0; i < def->nnets; i++) { virDomainNetDefPtr net = def->nets[i]; if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) - delMacvtap(net->ifname, + delMacvtap(net->ifname, net->data.direct.linkdev, &net->data.direct.virtPortProfile); } #endif @@ -8369,7 +8369,7 @@ qemudDomainDetachNetDevice(struct qemud_driver *driver, #if WITH_MACVTAP if (detach->type == VIR_DOMAIN_NET_TYPE_DIRECT) - delMacvtap(detach->ifname, + delMacvtap(detach->ifname, detach->data.direct.linkdev, &detach->data.direct.virtPortProfile); #endif diff --git a/src/util/macvtap.c b/src/util/macvtap.c index 5cbd02b..d5a08d9 100644 --- a/src/util/macvtap.c +++ b/src/util/macvtap.c @@ -27,7 +27,7 @@ #include <config.h> -#if WITH_MACVTAP +#if WITH_MACVTAP || WITH_VIRTUALPORT # include <stdio.h> # include <errno.h> @@ -41,6 +41,8 @@ # include <linux/rtnetlink.h> # include <linux/if_tun.h> +# include <netlink/msg.h> + # include "util.h" # include "memory.h" # include "logging.h" @@ -48,6 +50,7 @@ # include "interface.h" # include "conf/domain_conf.h" # include "virterror_internal.h" +# include "uuid.h" # define VIR_FROM_THIS VIR_FROM_NET @@ -58,15 +61,23 @@ # define MACVTAP_NAME_PREFIX "macvtap" # define MACVTAP_NAME_PATTERN "macvtap%d" +# define MICROSEC_PER_SEC (1000 * 1000) + static int associatePortProfileId(const char *macvtap_ifname, + const char *linkdev, const virVirtualPortProfileDefPtr virtPort, - int vf, const unsigned char *vmuuid); static int disassociatePortProfileId(const char *macvtap_ifname, + const char *linkdev, const virVirtualPortProfileDefPtr virtPort); +enum virVirtualPortOp { + ASSOCIATE = 0x1, + DISASSOCIATE = 0x2, +}; + static int nlOpen(void) { @@ -159,6 +170,156 @@ err_exit: } +# ifdef IFLA_VF_PORT_MAX + +/** + * nlCommWaitSuccess: + * + * @nlmsg: pointer to netlink message + * @nl_grousp: the netlink multicast groups to send to + * @respbuf: pointer to pointer where response buffer will be allocated + * @respbuflen: pointer to integer holding the size of the response buffer + * on return of the function. + * @to_usecs: timeout in microseconds to wait for a success message + * to be returned + * + * Send the given message to the netlink multicast group and receive + * responses. Skip responses indicating an error and keep on receiving + * responses until a success response is returned. + * Returns 0 on success, -1 on error. In case of error, no response + * buffer will be returned. + */ +static int +nlCommWaitSuccess(struct nlmsghdr *nlmsg, int nl_groups, + char **respbuf, int *respbuflen, long to_usecs) +{ + int rc = 0; + struct sockaddr_nl nladdr = { + .nl_family = AF_NETLINK, + .nl_pid = getpid(), + .nl_groups = nl_groups, + }; + int rcvChunkSize = 1024; // expecting less than that + int rcvoffset = 0; + ssize_t nbytes; + int n; + struct timeval tv = { + .tv_sec = to_usecs / MICROSEC_PER_SEC, + .tv_usec = to_usecs % MICROSEC_PER_SEC, + }; + fd_set rfds; + bool gotvalid = false; + int fd = nlOpen(); + static uint32_t seq = 0x1234; + uint32_t myseq = seq++; + uint32_t mypid = getpid(); + + if (fd < 0) + return -1; + + nlmsg->nlmsg_pid = mypid; + nlmsg->nlmsg_seq = myseq; + nlmsg->nlmsg_flags |= NLM_F_ACK; + + nbytes = sendto(fd, (void *)nlmsg, nlmsg->nlmsg_len, 0, + (struct sockaddr *)&nladdr, sizeof(nladdr)); + if (nbytes < 0) { + virReportSystemError(errno, + "%s", _("cannot send to netlink socket")); + rc = -1; + goto err_exit; + } + + while (!gotvalid) { + rcvoffset = 0; + while (1) { + socklen_t addrlen = sizeof(nladdr); + + if (VIR_REALLOC_N(*respbuf, rcvoffset+rcvChunkSize) < 0) { + virReportOOMError(); + rc = -1; + goto err_exit; + } + + FD_ZERO(&rfds); + FD_SET(fd, &rfds); + + n = select(fd + 1, &rfds, NULL, NULL, &tv); + if (n == 0) { + rc = -1; + goto err_exit; + } + + nbytes = recvfrom(fd, &((*respbuf)[rcvoffset]), rcvChunkSize, 0, + (struct sockaddr *)&nladdr, &addrlen); + if (nbytes < 0) { + if (errno == EAGAIN || errno == EINTR) + continue; + virReportSystemError(errno, "%s", + _("error receiving from netlink socket")); + rc = -1; + goto err_exit; + } + rcvoffset += nbytes; + break; + } + *respbuflen = rcvoffset; + + /* check message for error */ + if (*respbuflen > NLMSG_LENGTH(0) && *respbuf != NULL) { + struct nlmsghdr *resp = (struct nlmsghdr *)*respbuf; + struct nlmsgerr *err; + + if (resp->nlmsg_pid != mypid || + resp->nlmsg_seq != myseq) + continue; + + /* skip reflected message */ + if (resp->nlmsg_type & 0x10) + continue; + + switch (resp->nlmsg_type) { + case NLMSG_ERROR: + err = (struct nlmsgerr *)NLMSG_DATA(resp); + if (resp->nlmsg_len >= NLMSG_LENGTH(sizeof(*err))) { + if (-err->error != EOPNOTSUPP) { + /* assuming error msg from daemon */ + gotvalid = true; + break; + } + } + /* whatever this is, skip it */ + VIR_FREE(*respbuf); + *respbuf = NULL; + *respbuflen = 0; + break; + + case NLMSG_DONE: + gotvalid = true; + break; + + default: + VIR_FREE(*respbuf); + *respbuf = NULL; + *respbuflen = 0; + break; + } + } + } + +err_exit: + if (rc == -1) { + VIR_FREE(*respbuf); + *respbuf = NULL; + *respbuflen = 0; + } + + nlClose(fd); + return rc; +} + +#endif + static struct rtattr * rtattrCreate(char *buffer, int bufsize, int type, const void *data, int datalen) @@ -204,6 +365,8 @@ nlAppend(struct nlmsghdr *nlm, int totlen, const void *data, int datalen) } +# if WITH_MACVTAP + static int link_add(const char *type, const unsigned char *macaddress, int macaddrsize, @@ -655,8 +818,8 @@ create_name: } if (associatePortProfileId(cr_ifname, + linkdev, virtPortProfile, - -1, vmuuid) != 0) { rc = -1; goto link_del_exit; @@ -689,6 +852,7 @@ create_name: disassociate_exit: disassociatePortProfileId(cr_ifname, + linkdev, virtPortProfile); link_del_exit: @@ -701,6 +865,7 @@ link_del_exit: /** * delMacvtap: * @ifname : The name of the macvtap interface + * @linkdev: The interface name of the NIC to connect to the external bridge * @virtPortProfile: pointer to object holding the virtual port profile data * * Delete an interface given its name. Disassociate @@ -709,24 +874,603 @@ link_del_exit: */ void delMacvtap(const char *ifname, + const char *linkdev, virVirtualPortProfileDefPtr virtPortProfile) { if (ifname) { disassociatePortProfileId(ifname, + linkdev, virtPortProfile); link_del(ifname); } } -#endif +# endif + + +# ifdef IFLA_PORT_MAX + +static struct nla_policy ifla_policy[IFLA_MAX + 1] = +{ + [IFLA_VF_PORTS] = { .type = NLA_NESTED }, +}; + +static struct nla_policy ifla_vf_ports_policy[IFLA_VF_PORT_MAX + 1] = +{ + [IFLA_VF_PORT] = { .type = NLA_NESTED }, +}; + +static struct nla_policy ifla_port_policy[IFLA_PORT_MAX + 1] = +{ + [IFLA_PORT_RESPONSE] = { .type = NLA_U16 }, +}; + + +static int +link_dump(int ifindex, struct nlattr **tb, char **recvbuf) +{ + int rc = 0; + char nlmsgbuf[256] = { 0, }; + struct nlmsghdr *nlm = (struct nlmsghdr *)nlmsgbuf, *resp; + struct nlmsgerr *err; + struct ifinfomsg i = { + .ifi_family = AF_UNSPEC, + .ifi_index = ifindex + }; + int recvbuflen; + + *recvbuf = NULL; + + nlInit(nlm, NLM_F_REQUEST, RTM_GETLINK); + + if (!nlAppend(nlm, sizeof(nlmsgbuf), &i, sizeof(i))) + goto buffer_too_small; + + if (nlComm(nlm, recvbuf, &recvbuflen) < 0) + return -1; + + if (recvbuflen < NLMSG_LENGTH(0) || *recvbuf == NULL) + goto malformed_resp; + resp = (struct nlmsghdr *)*recvbuf; + + switch (resp->nlmsg_type) { + case NLMSG_ERROR: + err = (struct nlmsgerr *)NLMSG_DATA(resp); + if (resp->nlmsg_len < NLMSG_LENGTH(sizeof(*err))) + goto malformed_resp; + + switch (-err->error) { + case 0: + break; + + default: + virReportSystemError(-err->error, + _("error dumping %d interface"), + ifindex); + rc = -1; + } + break; + + case GENL_ID_CTRL: + case NLMSG_DONE: + if (nlmsg_parse(resp, sizeof(struct ifinfomsg), + tb, IFLA_MAX, ifla_policy)) { + goto malformed_resp; + } + break; + + default: + goto malformed_resp; + } + + if (rc != 0) + VIR_FREE(*recvbuf); + + return rc; + +malformed_resp: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("malformed netlink response message")); + VIR_FREE(*recvbuf); + return -1; + +buffer_too_small: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("internal buffer is too small")); + return -1; +} + + +static int +getPortProfileStatus(struct nlattr **tb, int32_t vf, uint16_t *status) +{ + int rc = 1; + const char *msg = NULL; + struct nlattr *tb2[IFLA_VF_PORT_MAX + 1], + *tb3[IFLA_PORT_MAX+1]; + + if (vf == PORT_SELF_VF) { + if (tb[IFLA_PORT_SELF]) { + if (nla_parse_nested(tb3, IFLA_PORT_MAX, tb[IFLA_PORT_SELF], + ifla_port_policy)) { + msg = _("error parsing nested IFLA_VF_PORT part"); + goto err_exit; + } + } + } else { + if (tb[IFLA_VF_PORTS]) { + if (nla_parse_nested(tb2, IFLA_VF_PORT_MAX, tb[IFLA_VF_PORTS], + ifla_vf_ports_policy)) { + msg = _("error parsing nested IFLA_VF_PORTS part"); + goto err_exit; + } + if (tb2[IFLA_VF_PORT]) { + if (nla_parse_nested(tb3, IFLA_PORT_MAX, tb2[IFLA_VF_PORT], + ifla_port_policy)) { + msg = _("error parsing nested IFLA_VF_PORT part"); + goto err_exit; + } + } + } + } + + if (tb3[IFLA_PORT_RESPONSE]) { + *status = *(uint16_t *)RTA_DATA(tb3[IFLA_PORT_RESPONSE]); + rc = 0; + } else { + msg = _("no IFLA_PORT_RESPONSE found in netlink message"); + goto err_exit; + } + +err_exit: + if (msg) + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", msg); + + return rc; +} + + +static int +doPortProfileOpSetLink(bool multicast, + int ifindex, + const char *profileId, + struct ifla_port_vsi *portVsi, + const unsigned char *instanceId, + const unsigned char *hostUUID, + int32_t vf, + uint8_t op) +{ + int rc = 0; + char nlmsgbuf[256]; + struct nlmsghdr *nlm = (struct nlmsghdr *)nlmsgbuf, *resp; + struct nlmsgerr *err; + char rtattbuf[64]; + struct rtattr *rta, *vfports, *vfport; + struct ifinfomsg ifinfo = { + .ifi_family = AF_UNSPEC, + .ifi_index = ifindex, + }; + char *recvbuf = NULL; + int recvbuflen = 0; + + memset(&nlmsgbuf, 0, sizeof(nlmsgbuf)); + + nlInit(nlm, NLM_F_REQUEST, RTM_SETLINK); + + if (!nlAppend(nlm, sizeof(nlmsgbuf), &ifinfo, sizeof(ifinfo))) + goto buffer_too_small; + + if (vf == PORT_SELF_VF) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_SELF, NULL, 0); + } else { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_VF_PORTS, NULL, 0); + if (!rta) + goto buffer_too_small; + + if (!(vfports = nlAppend(nlm, sizeof(nlmsgbuf), + rtattbuf, rta->rta_len))) + goto buffer_too_small; + + /* beging nesting vfports */ + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_VF_PORT, NULL, 0); + } + + if (!rta) + goto buffer_too_small; + + if (!(vfport = nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len))) + goto buffer_too_small; + + if (profileId) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_PROFILE, + profileId, strlen(profileId) + 1); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (portVsi) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_VSI_TYPE, + portVsi, sizeof(*portVsi)); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (instanceId) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_INSTANCE_UUID, + instanceId, VIR_UUID_BUFLEN); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (hostUUID) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_HOST_UUID, + hostUUID, VIR_UUID_BUFLEN); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (vf != PORT_SELF_VF) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_VF, + &vf, sizeof(vf)); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_REQUEST, + &op, sizeof(op)); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + + /* end nesting of vport */ + vfport->rta_len = (char *)nlm + nlm->nlmsg_len - (char *)vfport; + + if (vf != PORT_SELF_VF) { + /* end nesting of vfports */ + vfports->rta_len = (char *)nlm + nlm->nlmsg_len - (char *)vfports; + } + + if (!multicast) { + if (nlComm(nlm, &recvbuf, &recvbuflen) < 0) + return -1; + } else { + if (nlCommWaitSuccess(nlm, RTMGRP_LINK, &recvbuf, &recvbuflen, + 5 * MICROSEC_PER_SEC) < 0) + return -1; + } + + if (recvbuflen < NLMSG_LENGTH(0) || recvbuf == NULL) + goto malformed_resp; + + resp = (struct nlmsghdr *)recvbuf; + + switch (resp->nlmsg_type) { + case NLMSG_ERROR: + err = (struct nlmsgerr *)NLMSG_DATA(resp); + if (resp->nlmsg_len < NLMSG_LENGTH(sizeof(*err))) + goto malformed_resp; + + switch (-err->error) { + case 0: + break; + + default: + virReportSystemError(-err->error, + _("error during virtual port configuration of ifindex %d"), + ifindex); + rc = -1; + } + break; + + case NLMSG_DONE: + break; + + default: + goto malformed_resp; + } + + VIR_FREE(recvbuf); + + return rc; + +malformed_resp: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("malformed netlink response message")); + VIR_FREE(recvbuf); + return -1; + +buffer_too_small: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("internal buffer is too small")); + return -1; +} + + +static int +doPortProfileOpCommon(bool multicast, + int ifindex, + const char *profileId, + struct ifla_port_vsi *portVsi, + const unsigned char *instanceId, + const unsigned char *hostUUID, + int32_t vf, + uint8_t op) +{ + int rc; + char *recvbuf = NULL; + struct nlattr *tb[IFLA_MAX + 1]; + int repeats = 80; + uint16_t status = 0; + + rc = doPortProfileOpSetLink(multicast, + ifindex, + profileId, + portVsi, + instanceId, + hostUUID, + vf, + op); + + if (rc != 0) { + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("sending of PortProfileRequest failed.\n")); + return rc; + } + + if (!multicast) { + while (--repeats) { + rc = link_dump(ifindex, tb, &recvbuf); + if (rc) + goto err_exit; + rc = getPortProfileStatus(tb, vf, &status); + if (rc == 0) { + if (status == PORT_PROFILE_RESPONSE_SUCCESS || + status == PORT_VDP_RESPONSE_SUCCESS) { + break; + } else if (status == PORT_PROFILE_RESPONSE_INPROGRESS) { + // keep trying... + } else { + virReportSystemError(EINVAL, + _("error %d during port-profile setlink on ifindex %d"), + status, ifindex); + rc = 1; + break; + } + } + usleep(125000); + + VIR_FREE(recvbuf); + } + } + + if (status == PORT_PROFILE_RESPONSE_INPROGRESS) { + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("port-profile setlink timed out")); + rc = -ETIMEDOUT; + } + +err_exit: + VIR_FREE(recvbuf); + + return rc; +} + +# endif /* IFLA_PORT_MAX */ + +static int +doPortProfileOp8021Qbg(const char *ifname, + const virVirtualPortProfileDefPtr virtPort, + enum virVirtualPortOp virtPortOp) +{ + int rc; + +# ifndef IFLA_VF_PORT_MAX + + (void)ifname; + (void)virtPort; + (void)vf; + (void)virtPortOp; + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Kernel VF Port support was missing at compile time.")); + rc = 1; + +# else /* IFLA_VF_PORT_MAX */ + + int op = PORT_REQUEST_ASSOCIATE; + struct ifla_port_vsi portVsi = { + .vsi_mgr_id = virtPort->u.virtPort8021Qbg.managerID, + .vsi_type_version = virtPort->u.virtPort8021Qbg.typeIDVersion, + }; + bool multicast = true; + int ifindex; + + if (ifaceGetIndex(true, ifname, &ifindex) != 0) { + rc = 1; + goto err_exit; + } + + portVsi.vsi_type_id[2] = virtPort->u.virtPort8021Qbg.typeID >> 16; + portVsi.vsi_type_id[1] = virtPort->u.virtPort8021Qbg.typeID >> 8; + portVsi.vsi_type_id[0] = virtPort->u.virtPort8021Qbg.typeID; + + switch (virtPortOp) { + case ASSOCIATE: + op = PORT_REQUEST_ASSOCIATE; + break; + case DISASSOCIATE: + op = PORT_REQUEST_DISASSOCIATE; + break; + default: + macvtapError(VIR_ERR_INTERNAL_ERROR, + _("operation type %d not supported"), op); + rc = 1; + goto err_exit; + } + + rc = doPortProfileOpCommon(multicast, ifindex, + NULL, + &portVsi, + virtPort->u.virtPort8021Qbg.instanceID, + NULL, + PORT_SELF_VF, + op); + +err_exit: + +# endif /* IFLA_VF_PORT_MAX */ + + return rc; +} + + +static int +getPhysfn(const char *linkdev, + int32_t *vf, + char **physfndev) +{ + int rc = 0; + +# ifndef IFLA_VF_PORT_MAX + + (void)linkdev; + (void)vf; + (void)physfndev; + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Kernel VF Port support was missing at compile time.")); + rc = 1; + +# else /* IFLA_VF_PORT_MAX */ + + bool virtfn = false; + + if (virtfn) { + + // XXX: if linkdev is SR-IOV VF, then set vf = VF index + // XXX: and set linkdev = PF device + // XXX: need to use get_physical_function_linux() or + // XXX: something like that to get PF + // XXX: device and figure out VF index + + rc = 1; + + } else { + + /* Not SR-IOV VF: physfndev is linkdev and VF index + * refers to linkdev self + */ + + *vf = PORT_SELF_VF; + *physfndev = (char *)linkdev; + } + +# endif /* IFLA_VF_PORT_MAX */ + + return rc; +} + + +static int +doPortProfileOp8021Qbh(const char *ifname, + const virVirtualPortProfileDefPtr virtPort, + const unsigned char *vm_uuid, + enum virVirtualPortOp virtPortOp) +{ + int rc; + +# ifndef IFLA_VF_PORT_MAX + + (void)ifname; + (void)virtPort; + (void)vm_uuid; + (void)virtPortOp; + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Kernel VF Port support was missing at compile time.")); + rc = 1; + +# else /* IFLA_VF_PORT_MAX */ + + char *physfndev; + unsigned char hostuuid[VIR_UUID_BUFLEN]; + int32_t vf; + int op = PORT_REQUEST_ASSOCIATE; + bool multicast = false; + int ifindex; + + rc = virGetHostUUID(hostuuid); + if (rc) + goto err_exit; + + rc = getPhysfn(ifname, &vf, &physfndev); + if (rc) + goto err_exit; + + if (ifaceGetIndex(true, physfndev, &ifindex) != 0) { + rc = 1; + goto err_exit; + } + + switch (virtPortOp) { + case ASSOCIATE: + op = PORT_REQUEST_ASSOCIATE; + break; + case DISASSOCIATE: + op = PORT_REQUEST_DISASSOCIATE; + break; + default: + macvtapError(VIR_ERR_INTERNAL_ERROR, + _("operation type %d not supported"), op); + rc = 1; + goto err_exit; + } + + rc = doPortProfileOpCommon(multicast, ifindex, + virtPort->u.virtPort8021Qbh.profileID, + NULL, + vm_uuid, + hostuuid, + vf, + op); + + switch (virtPortOp) { + case ASSOCIATE: + ifaceUp(ifname); + break; + case DISASSOCIATE: + ifaceDown(ifname); + break; + } + +err_exit: + +# endif /* IFLA_VF_PORT_MAX */ + + return rc; +} /** * associatePortProfile * * @macvtap_ifname: The name of the macvtap device + * @linkdev: The link device in case of macvtap * @virtPort: pointer to the object holding port profile parameters - * @vf: virtual function number, -1 if to be ignored * @vmuuid : the UUID of the virtual machine * * Associate a port on a swtich with a profile. This function @@ -740,15 +1484,14 @@ delMacvtap(const char *ifname, */ static int associatePortProfileId(const char *macvtap_ifname, + const char *linkdev, const virVirtualPortProfileDefPtr virtPort, - int vf, const unsigned char *vmuuid) { int rc = 0; + VIR_DEBUG("Associating port profile '%p' on link device '%s'", virtPort, macvtap_ifname); - (void)vf; - (void)vmuuid; switch (virtPort->virtPortType) { case VIR_VIRTUALPORT_NONE: @@ -756,11 +1499,14 @@ associatePortProfileId(const char *macvtap_ifname, break; case VIR_VIRTUALPORT_8021QBG: - + rc = doPortProfileOp8021Qbg(macvtap_ifname, virtPort, + ASSOCIATE); break; case VIR_VIRTUALPORT_8021QBH: - + rc = doPortProfileOp8021Qbh(linkdev, virtPort, + vmuuid, + ASSOCIATE); break; } @@ -772,6 +1518,7 @@ associatePortProfileId(const char *macvtap_ifname, * disassociatePortProfile * * @macvtap_ifname: The name of the macvtap device + * @linkdev: The link device in case of macvtap * @virtPort: point to object holding port profile parameters * * Returns 0 in case of success, != 0 otherwise with error @@ -779,9 +1526,11 @@ associatePortProfileId(const char *macvtap_ifname, */ static int disassociatePortProfileId(const char *macvtap_ifname, + const char *linkdev, const virVirtualPortProfileDefPtr virtPort) { int rc = 0; + VIR_DEBUG("Disassociating port profile id '%p' on link device '%s' ", virtPort, macvtap_ifname); @@ -791,13 +1540,18 @@ disassociatePortProfileId(const char *macvtap_ifname, break; case VIR_VIRTUALPORT_8021QBG: - + rc = doPortProfileOp8021Qbg(macvtap_ifname, virtPort, + DISASSOCIATE); break; case VIR_VIRTUALPORT_8021QBH: - + rc = doPortProfileOp8021Qbh(linkdev, virtPort, + NULL, + DISASSOCIATE); break; } return rc; } + +#endif diff --git a/src/util/macvtap.h b/src/util/macvtap.h index ae11c5c..35db31c 100644 --- a/src/util/macvtap.h +++ b/src/util/macvtap.h @@ -72,6 +72,7 @@ int openMacvtapTap(const char *ifname, char **res_ifname); void delMacvtap(const char *ifname, + const char *linkdev, virVirtualPortProfileDefPtr virtPortProfile); # endif /* WITH_MACVTAP */

2 1

[libvirt] [PATCH 0/2] Device assignment hotplug fixes
by Alex Williamson 25 May '10

25 May '10

These add a couple fixes for device assignment hotplug --- Alex Williamson (2): qemu: Release bus address on PCI host device remove qemu: avoid corrupting guest info struct on host device PCI hot add src/qemu/qemu_driver.c | 23 +++++++++++++++-------- 1 files changed, 15 insertions(+), 8 deletions(-)

3 5

[libvirt] [PATCH] [DOCS] nwfilter: documentation
by Stefan Berger 25 May '10

25 May '10

This patch adds documentation of the nwfilter subsystem of libvirt to the existing (web) docs. I am attaching a PDF in case you don't want to read the plain html sources. Signed-off-by: Stefan Berger <stefanb(a)linux.vnet.ibm.com> --- docs/formatnwfilter.html.in | 1407 ++++++++++++++++++++++++++++++++++++++++++++ docs/sitemap.html.in | 6 2 files changed, 1413 insertions(+) Index: libvirt-acl/docs/sitemap.html.in =================================================================== --- libvirt-acl.orig/docs/sitemap.html.in +++ libvirt-acl/docs/sitemap.html.in @@ -97,6 +97,12 @@ <li> <a href="formatnetwork.html">Networks</a> <span>The virtual network XML format</span> + <ul> + <li> + <a href="formatnwfilter.html">Network Filtering</a> + <span>Network filter XML format</span> + </li> + </ul> </li> <li> <a href="formatstorage.html">Storage</a> Index: libvirt-acl/docs/formatnwfilter.html.in =================================================================== --- /dev/null +++ libvirt-acl/docs/formatnwfilter.html.in @@ -0,0 +1,1407 @@ +<html> + <body> + <h1>Network Filters</h1> + + <ul id="toc"> + </ul> + + <p> + This page provides an introduction to libvirt's network filters, + their goals, concepts and XML format. + </p> + + <h2><a name="goals">Goals and background</a></h2> + + <p> + The goal of the network filtering XML is to enable administrators + of virtualized system to configure and enforce network traffic + filtering rules on virtual + machines and manage the parameters of network traffic that + virtual machines + are allowed to send or receive. + The network traffic filtering rules are + applied on the host when a virtual machine is started. Since the + filtering rules + cannot be circumvented from within + the virtual machine, it makes them mandatory from the point of + view of a virtual machine user. + <br><br> + The network filter subsystem allows each virtual machine's network + traffic filtering rules to be configured individually on a per + interface basis. The rules are + applied on the host when the virtual machine is started and can be modified + while the virtual machine is running. The latter can be achieved by + modifying the XML description of a network filter. + <br><br> + Multiple virtual machines can make use of the same generic network filter. + When such a filter is modified, the network traffic filtering rules + of all running virtual machines that reference this filter are updated. + <br><br> + Network filtering support is available <span class="since">since 0.8.1 + (Qemu, KVM)</span> + </p> + + <h2><a name="nwfconcpts">Concepts</a></h2> + <p> + The network traffic filtering subsystem enables configuration + of network traffic filtering rules on individual network + interfaces that are configured for certain types of + network configurations. Supported network types are + </p> + <ul> + <li><code>network</code></li> + <li><code>ethernet</code> -- must be used in bridging mode</li> + <li><code>bridge</code></li> + <li><code>direct</code> -- only protocols mac, arp, ip and ipv6 + can be filtered</li> + </ul> + <p> + The interface XML is used to reference a top-level filter. In the + following example, the interface description references + the filter <code>clean-traffic</code>. + </p> +<pre> + ... + <devices> + <interface type='bridge'> + <mac address='00:16:3e:5d:c7:9e'/> + <filterref filter='clean-traffic'/> + </interface> + </devices> + ...</pre> + + <p> + Network filters are written in XML and may either contain references + to other filters, contain rules for traffic filtering or can + hold a combination of both. The above referenced filter + <code>clean-traffic </code> is a filter that for example only + contains references to + other filters and no actual filtering rules. Since references to + other filters can be used, a <i>tree</i> of filters can be built. + The <code>clean-traffic</code> filter can be viewed using the + command <code>virsh nwfilter-dumpxml clean-traffic</code>. + <br><br> + As previously mentioned, a single network filter can be referenced + by multiple virtual machines. Since interfaces will typically + have individual parameters associated with their respective traffic + filtering rules, the rules described in a filter XML can + be parameterized with variables. In this case, the variable name + is used in the filter XML and the name and value are provided at the + place where the filter is referenced. In the + following example, the interface description has been extended with + the parameter <code>IP</code> and a dotted IP address as value. + </p> +<pre> + ... + <devices> + <interface type='bridge'> + <mac address='00:16:3e:5d:c7:9e'/> + <filterref filter='clean-traffic'> + <parameter name='IP' value='10.0.0.1'/> + </filterref> + </interface> + </devices> + ...</pre> + + <p> + In this particular example, the <code>clean-traffic</code> network + traffic filter will be instantiated with the IP address parameter + 10.0.0.1 and enforce that the traffic from this interface will + always be using 10.0.0.1 as the source IP address, which is + one of the purposes of this particular filter. + <br><br> + </p> + + <h3><a name="nwfconcptsvars">Usage of variables in filters</a></h3> + <p> + + Two variables names have so far been reserved for usage by the + network traffic filtering subsystem: <code>MAC</code> and + <code>IP</code>. + <br><br> + <code>MAC</code> is the MAC address of the + network interface. A filtering rule that references this variable + will automatically be instantiated with the MAC address of the + interface. This works without the user having to explicitly provide + the MAC parameter. Even though it is possible to specify the MAC + parameter similar to the IP parameter above, it is discouraged + since libvirt knows what MAC address an interface will be using. + <br><br> + The parameter <code>IP</code> represents the IP address + that the operating system inside the virtual machine is expected + to use on the given interface. The <code>IP</code> parameter + is special in so far as the libvirt daemon will try to determine + the IP address (and thus the IP parameter's value) that is being + used on an interface if the parameter + is not explicitly provided but referenced. + For current limitations on IP address detection, consult the + <a href="#nwflimits">section on limitations</a> on how to use this + feature and what to expect when using it. + <br><br> + The following is the XML description of the network filer + <code>no-arp-spoofing</code>. It serves as an example for + a network filter XML referencing the <code>MAC</code> and + <code>IP</code> parameters. This particular filter is referenced by the + <code>clean-traffic</code> filter. + </p> +<pre> +<filter name='no-arp-spoofing' chain='arp'> + <uuid>f88f1932-debf-4aa1-9fbe-f10d3aa4bc95</uuid> + <rule action='drop' direction='out' priority='300'> + <mac match='no' srcmacaddr='$MAC'/> + </rule> + <rule action='drop' direction='out' priority='350'> + <arp match='no' arpsrcmacaddr='$MAC'/> + </rule> + <rule action='drop' direction='out' priority='400'> + <arp match='no' arpsrcipaddr='$IP'/> + </rule> + <rule action='drop' direction='in' priority='450'> + <arp opcode='Reply'/> + <arp match='no' arpdstmacaddr='$MAC'/> + </rule> + <rule action='drop' direction='in' priority='500'> + <arp match='no' arpdstipaddr='$IP'/> + </rule> + <rule action='accept' direction='inout' priority='600'> + <arp opcode='Request'/> + </rule> + <rule action='accept' direction='inout' priority='650'> + <arp opcode='Reply'/> + </rule> + <rule action='drop' direction='inout' priority='1000'/> +</filter> +</pre> + + <p> + Note that referenced variables are always prefixed with the + $ (dollar) sign. The format of the value of a variable + must be of the type expected by the filter attribute in the + XML. In the above example, the <code>IP</code> parameter + must hold a dotted IP address in decimal numbers format. + Failure to provide the correct + value type will result in the filter not being instantiatable + and will prevent a virtual machine from starting or the + interface from attaching when hotplugging is used. The types + that are expected for each XML attribute are shown + below. + </p> + + <h2><a name="nwfelems">Element and attribute overview</a></h2> + + <p> + The root element required for all network filters is + named <code>filter</code> with two possible attributes. The + <code>name</code> attribute provides a unique name of the + given filter. The <code>chain</code> attribute is optional but + allows certain filters to be better organized for more efficient + processing by the firewall subsystem of the underlying host. + Currently the system only supports the chains <code>root, + ipv4, ipv6, arp and rarp</code>. + </p> + + <h3><a name="nwfelemsRefs">References to other filers</a></h3> + <p> + Any filter may hold references to other filters. Individual + filters may be referenced multiple times in a filter tree but + references between filters must not introduce loops (directed + acyclic graph). + <br><br> + The following shows the XML of the <code>clean-traffic</code> + network filter referencing several other filters. + </p> +<pre> +<filter name='clean-traffic'> + <uuid>6ef53069-ba34-94a0-d33d-17751b9b8cb1</uuid> + <filterref filter='no-mac-spoofing'/> + <filterref filter='no-ip-spoofing'/> + <filterref filter='allow-incoming-ipv4'/> + <filterref filter='no-arp-spoofing'/> + <filterref filter='no-other-l2-traffic'/> + <filterref filter='qemu-announce-self'/> +</filter> +</pre> + + <p> + To reference another filter, the XML node <code>filterref</code> + needs to be provided inside a <code>filter</code> node. This + node must have the attribute <code>filter</code> whose value contains + the name of the filter to be referenced. + <br><br> + New network filters can be defined at any time and + may contain references to network filters that are + not known to libvirt, yet. However, once a virtual machine + is started or a network interface + referencing a filter is to be hotplugged, all network filters + in the filter tree must be available. Otherwise the virtual + machine will not start or the network interface cannot be + attached. + </p> + + <h3><a name="nwfelemsRules">Filter rules</a></h3> + <p> + The following XML shows a simple example of a network + traffic filter implementing a rule to drop traffic if + the IP address (provided through the value of the + variable IP) in an outgoing IP packet is not the expected + one, thus preventing IP address spoofing by the VM. + </p> +<pre> +<filter name='no-ip-spoofing' chain='ipv4'> + <uuid>fce8ae33-e69e-83bf-262e-30786c1f8072</uuid> + <rule action='drop' direction='out' priority='500'> + <ip match='no' srcipaddr='$IP'/> + </rule> +</filter> +</pre> + + <p> + A traffic filtering rule starts with the <code>rule</code> + node. This node may contain up to three attributes + </p> + <ul> + <li> + action -- mandatory; must either be <code>drop</code> or <code>accept</code> if + the evaluation of the filtering rule is supposed to drop or accept + a packet + </li> + <li> + direction -- mandatory; must either be <code>in</code>, <code>out</code> or + <code>inout</code> if the rule is for incoming, + outgoing or incoming-and-outgoing traffic + </li> + <li> + priority -- optional; the priority of the rule controls the order in + which the rule will be instantiated relative to other rules. + Rules with lower value will be instantiated and therefore evaluated + before rules with higher value. + Valid values are in the range of 0 to 1000. If this attribute is not + provided, the value 500 will automatically be assigned. + </li> + </ul> + <p> + The above example indicates that the traffic of type <code>ip</code> + will be asscociated with the chain 'ipv4' and the rule will have + priority 500. If for example another filter is referenced whose + traffic of type <code>ip</code> is also associated with the chain + 'ipv4' then that filter's rules will be ordered relative to the priority + 500 of the shown rule. + <br><br> + A rule may contain a single rule for filtering of traffic. The + above example shows that traffic of type <code>ip</code> is to be + filtered. + </p> + + <h4><a name="nwfelemsRulesProto">Supported protocols</a></h4> + <p> + The following sections enumerate the list of protocols that + are supported by the network filtering subsystem. The + type of traffic a rule is supposed to filter on is provided + in the <code>rule</code> node as a nested node. Depending + on the traffic type a rule is filtering, the attributes are + different. The above example showed the single + attribute <code>srcipaddr</code> that is valid inside the + <code>ip</code> traffic filtering node. The following sections + show what attributes are valid and what type of data they are + expecting. The following datatypes are available: + </p> + <ul> + <li>UINT8 : 8 bit integer; range 0-255</li> + <li>UINT16: 16 bit integer; range 0-65535</li> + <li>MAC_ADDR: MAC adrress in dotted decimal format, i.e., 00:11:22:33:44:55</li> + <li>MAC_MASK: MAC address mask in MAC address format, i.e., FF:FF:FF:FC:00:00</li> + <li>IP_ADDR: IP address in dotted decimal format, i.e., 10.1.2.3</li> + <li>IP_MASK: IP address mask in either dotted decimal format (255.255.248.0) or CIDR mask (0-32)</li> + <li>IPV6_ADDR: IPv6 address in numbers format, i.e., FFFF::1</li> + <li>IPV6_MASK: IPv6 mask in numbers format (FFFF:FFFF:FC00::) or CIDR mask (0-128)</li> + <li>STRING: A string</li> + </ul> + <p> + <br><br> + Every attribute except for those of type IP_MASK or IPV6_MASK can + be negated using the <code>match</code> + attribute with value <code>no</code>. Multiple negated attributes + may be grouped together. The following + XML fragment shows such an example using abstract attributes. + </p> +<pre> +[...] + <rule action='drop' direction='in'> + <protocol match='no' attribute1='value1' attribute2='value2'/> + <protocol attribute3='value3'/> + </rule> +[...] +</pre> + <p> + Rules perform a logical AND evaluation on all values of the given + protocol attributes. Thus, if a single attribute's value does not match + the one given in the rule, the whole rule will be skipped during + evaluation. Therefore, in the above example incoming traffic + will only be dropped if + the protocol property attribute1 does not match value1 AND + the protocol property attribute2 does not match value2 AND + the protocol property attribute3 matches value3. + <br><br> + </p> + + + <h5><a name="nwfelemsRulesProtoMAC">MAC (Ethernet)</a></h5> + <p> + Protocol ID: <code>mac</code> + <br> + Note: Rules of this type should go into the <code>root</code> chain. + </p> + <table class="top_table"> + <tr> + <th> Attribute </th> + <th> Datatype </th> + <th> Semantics </th> + </tr> + <tr> + <td>srcmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of sender</td> + </tr> + <tr> + <td>srcmacmask</td> + <td>MAC_MASK</td> + <td>Mask applied to MAC address of sender</td> + </tr> + <tr> + <td>dstmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of destination</td> + </tr> + <tr> + <td>dstmacmask</td> + <td>MAC_MASK</td> + <td>Mask applied to MAC address of destination</td> + </tr> + <tr> + <td>protocolid</td> + <td>UINT16 (0x600-0xffff), STRING</td> + <td>Layer 3 protocol ID</td> + </tr> + </table> + <p> + Valid Strings for <code>protocolid</code> are: arp, rarp, ipv4, ipv6 + <br><br> + Example: <pre><mac match='no' srcmacaddr='$MAC'/></pre> + <br><br> + </p> + + <h5><a name="nwfelemsRulesProtoARP">ARP/RARP</a></h5> + <p> + Protocol ID: <code>arp</code> or <code>rarp</code> + <br> + Note: Rules of this type should either go into the + <code>root</code> or <code>arp/rarp</code> chain. + </p> + <table class="top_table"> + <tr> + <th> Attribute </th> + <th> Datatype </th> + <th> Semantics </th> + </tr> + <tr> + <td>srcmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of sender</td> + </tr> + <tr> + <td>srcmacmask</td> + <td>MAC_MASK</td> + <td>Mask applied to MAC address of sender</td> + </tr> + <tr> + <td>dstmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of destination</td> + </tr> + <tr> + <td>dstmacmask</td> + <td>MAC_MASK</td> + <td>Mask applied to MAC address of destination</td> + </tr> + <tr> + <td>hwtype</td> + <td>UINT16</td> + <td>Hardware type</td> + </tr> + <tr> + <td>protocoltype</td> + <td>UINT16</td> + <td>Protocol type</td> + </tr> + <tr> + <td>opcode</td> + <td>UINT16, STRING</td> + <td>Opcode</td> + </tr> + <tr> + <td>arpsrcmacaddr</td> + <td>MAC_ADDR</td> + <td>Source MAC address in ARP/RARP packet</td> + </tr> + <tr> + <td>arpdstmacaddr</td> + <td>MAC_ADDR</td> + <td>Destination MAC address in ARP/RARP packet</td> + </tr> + <tr> + <td>arpsrcipaddr</td> + <td>IP_ADDR</td> + <td>Source IP address in ARP/RARP packet</td> + </tr> + <tr> + <td>arpdstipaddr</td> + <td>IP_ADDR</td> + <td>Destination IP address in ARP/RARP packet</td> + </tr> + </table> + <p> + Valid strings for the <code>Opcode</code> field are: + Request, Reply, Request_Reverse, Reply_Reverse, DRARP_Request, + DRARP_Reply, DRARP_Error, InARP_Request, ARP_NAK + <br><br> + </p> + + <h5><a name="nwfelemsRulesProtoIP">IPv4</a></h5> + <p> + Protocol ID: <code>ip</code> + Note: Rules of this type should either go into the + <code>root</code> or <code>ipv4</code> chain. + </p> + <table class="top_table"> + <tr> + <th> Attribute </th> + <th> Datatype </th> + <th> Semantics </th> + </tr> + <tr> + <td>srcmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of sender</td> + </tr> + <tr> + <td>srcmacmask</td> + <td>MAC_MASK</td> + <td>Mask applied to MAC address of sender</td> + </tr> + <tr> + <td>dstmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of destination</td> + </tr> + <tr> + <td>dstmacmask</td> + <td>MAC_MASK</td> + <td>Mask applied to MAC address of destination</td> + </tr> + <tr> + <td>srcipaddr</td> + <td>IP_ADDR</td> + <td>Source IP address</td> + </tr> + <tr> + <td>srcipmask</td> + <td>IP_MASK</td> + <td>Mask applied to source IP address</td> + </tr> + <tr> + <td>dstipaddr</td> + <td>IP_ADDR</td> + <td>Destination IP address</td> + </tr> + <tr> + <td>dstipmask</td> + <td>IP_MASK</td> + <td>Mask applied to destination IP address</td> + </tr> + <tr> + <td>protocol</td> + <td>UINT8, STRING</td> + <td>Layer 4 protocol identifier</td> + </tr> + <tr> + <td>srcportstart</td> + <td>UINT16</td> + <td>Start of range of valid source ports; requires <code>protocol</code></td> + </tr> + <tr> + <td>srcportend</td> + <td>UINT16</td> + <td>End of range of valid source ports; requires <code>protocol</code></td> + </tr> + <tr> + <td>dstportstart</td> + <td>UINT16</td> + <td>Start of range of valid destination ports; requires <code>protocol</code></td> + </tr> + <tr> + <td>dstportend</td> + <td>UINT16</td> + <td>End of range of valid destination ports; requires <code>protocol</code></td> + </tr> + </table> + <p> + Valid strings for <code>protocol</code> are: + tcp, udp, udplite, esp, ah, icmp, igmp, sctp + <br><br> + </p> + + + <h5><a name="nwfelemsRulesProtoIPv6">IPv6</a></h5> + <p> + Protocol ID: <code>ipv6</code> + Note: Rules of this type should either go into the + <code>root</code> or <code>ipv6</code> chain. + </p> + <table class="top_table"> + <tr> + <th> Attribute </th> + <th> Datatype </th> + <th> Semantics </th> + </tr> + <tr> + <td>srcmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of sender</td> + </tr> + <tr> + <td>srcmacmask</td> + <td>MAC_MASK</td> + <td>Mask applied to MAC address of sender</td> + </tr> + <tr> + <td>dstmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of destination</td> + </tr> + <tr> + <td>dstmacmask</td> + <td>MAC_MASK</td> + <td>Mask applied to MAC address of destination</td> + </tr> + <tr> + <td>srcipaddr</td> + <td>IPV6_ADDR</td> + <td>Source IPv6 address</td> + </tr> + <tr> + <td>srcipmask</td> + <td>IPV6_MASK</td> + <td>Mask applied to source IPv6 address</td> + </tr> + <tr> + <td>dstipaddr</td> + <td>IPV6_ADDR</td> + <td>Destination IPv6 address</td> + </tr> + <tr> + <td>dstipmask</td> + <td>IPV6_MASK</td> + <td>Mask applied to destination IPv6 address</td> + </tr> + <tr> + <td>protocol</td> + <td>UINT8</td> + <td>Layer 4 protocol identifier</td> + </tr> + <tr> + <td>srcportstart</td> + <td>UINT16</td> + <td>Start of range of valid source ports; requires <code>protocol</code></td> + </tr> + <tr> + <td>srcportend</td> + <td>UINT16</td> + <td>End of range of valid source ports; requires <code>protocol</code></td> + </tr> + <tr> + <td>dstportstart</td> + <td>UINT16</td> + <td>Start of range of valid destination ports; requires <code>protocol</code></td> + </tr> + <tr> + <td>dstportend</td> + <td>UINT16</td> + <td>End of range of valid destination ports; requires <code>protocol</code></td> + </tr> + </table> + <p> + Valid strings for <code>protocol</code> are: + tcp, udp, udplite, esp, ah, icmpv6, sctp + <br><br> + </p> + + <h5><a name="nwfelemsRulesProtoTCP-ipv4">TCP/UDP/SCTP</a></h5> + <p> + Protocol ID: <code>tcp</code>, <code>udp</code>, <code>sctp</code> + <br> + Note: The chain parameter is ignored for this type of traffic + and should either be omitted or set to <code>root</code>. + </p> + <table class="top_table"> + <tr> + <th> Attribute </th> + <th> Datatype </th> + <th> Semantics </th> + </tr> + <tr> + <td>srcmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of sender</td> + </tr> + <tr> + <td>srcipaddr</td> + <td>IP_ADDR</td> + <td>Source IP address</td> + </tr> + <tr> + <td>srcipmask</td> + <td>IP_MASK</td> + <td>Mask applied to source IP address</td> + </tr> + <tr> + <td>dstipaddr</td> + <td>IP_ADDR</td> + <td>Destination IP address</td> + </tr> + <tr> + <td>dstipmask</td> + <td>IP_MASK</td> + <td>Mask applied to destination IP address</td> + </tr> + + <tr> + <td>srcipfrom</td> + <td>IP_ADDR</td> + <td>Start of range of source IP address</td> + </tr> + <tr> + <td>srcipto</td> + <td>IP_ADDR</td> + <td>End of range of source IP address</td> + </tr> + <tr> + <td>dstipfrom</td> + <td>IP_ADDR</td> + <td>Start of range of destination IP address</td> + </tr> + <tr> + <td>dstipto</td> + <td>IP_ADDR</td> + <td>End of range of destination IP address</td> + </tr> + + <tr> + <td>srcportstart</td> + <td>UINT16</td> + <td>Start of range of valid source ports</td> + </tr> + <tr> + <td>srcportend</td> + <td>UINT16</td> + <td>End of range of valid source ports</code></td> + </tr> + <tr> + <td>dstportstart</td> + <td>UINT16</td> + <td>Start of range of valid destination ports</code></td> + </tr> + <tr> + <td>dstportend</td> + <td>UINT16</td> + <td>End of range of valid destination ports</td> + </tr> + </table> + <p> + <br><br> + </p> + + + <h5><a name="nwfelemsRulesProtoICMP">ICMP</a></h5> + <p> + Protocol ID: <code>icmp</code> + <br> + Note: The chain parameter is ignored for this type of traffic + and should either be omitted or set to <code>root</code>. + </p> + <table class="top_table"> + <tr> + <th> Attribute </th> + <th> Datatype </th> + <th> Semantics </th> + </tr> + <tr> + <td>srcmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of sender</td> + </tr> + <tr> + <td>srcmacmask</td> + <td>MAC_MASK</td> + <td>Mask applied to MAC address of sender</td> + </tr> + <tr> + <td>dstmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of destination</td> + </tr> + <tr> + <td>dstmacmask</td> + <td>MAC_MASK</td> + <td>Mask applied to MAC address of destination</td> + </tr> + <tr> + <td>srcipaddr</td> + <td>IP_ADDR</td> + <td>Source IP address</td> + </tr> + <tr> + <td>srcipmask</td> + <td>IP_MASK</td> + <td>Mask applied to source IP address</td> + </tr> + <tr> + <td>dstipaddr</td> + <td>IP_ADDR</td> + <td>Destination IP address</td> + </tr> + <tr> + <td>dstipmask</td> + <td>IP_MASK</td> + <td>Mask applied to destination IP address</td> + </tr> + + <tr> + <td>srcipfrom</td> + <td>IP_ADDR</td> + <td>Start of range of source IP address</td> + </tr> + <tr> + <td>srcipto</td> + <td>IP_ADDR</td> + <td>End of range of source IP address</td> + </tr> + <tr> + <td>dstipfrom</td> + <td>IP_ADDR</td> + <td>Start of range of destination IP address</td> + </tr> + <tr> + <td>dstipto</td> + <td>IP_ADDR</td> + <td>End of range of destination IP address</td> + </tr> + <tr> + <td>type</td> + <td>UINT16</td> + <td>ICMP type</td> + </tr> + <tr> + <td>code</td> + <td>UINT16</td> + <td>ICMP code</td> + </tr> + </table> + <p> + <br><br> + </p> + + <h5><a name="nwfelemsRulesProtoMisc">IGMP, ESP, AH, UDPLITE, 'ALL'</a></h5> + <p> + Protocol ID: <code>igmp</code>, <code>esp</code>, <code>ah</code>, <code>udplite</code>, <code>all</code> + <br> + Note: The chain parameter is ignored for this type of traffic + and should either be omitted or set to <code>root</code>. + </p> + <table class="top_table"> + <tr> + <th> Attribute </th> + <th> Datatype </th> + <th> Semantics </th> + </tr> + <tr> + <td>srcmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of sender</td> + </tr> + <tr> + <td>srcmacmask</td> + <td>MAC_MASK</td> + <td>Mask applied to MAC address of sender</td> + </tr> + <tr> + <td>dstmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of destination</td> + </tr> + <tr> + <td>dstmacmask</td> + <td>MAC_MASK</td> + <td>Mask applied to MAC address of destination</td> + </tr> + <tr> + <td>srcipaddr</td> + <td>IP_ADDR</td> + <td>Source IP address</td> + </tr> + <tr> + <td>srcipmask</td> + <td>IP_MASK</td> + <td>Mask applied to source IP address</td> + </tr> + <tr> + <td>dstipaddr</td> + <td>IP_ADDR</td> + <td>Destination IP address</td> + </tr> + <tr> + <td>dstipmask</td> + <td>IP_MASK</td> + <td>Mask applied to destination IP address</td> + </tr> + + <tr> + <td>srcipfrom</td> + <td>IP_ADDR</td> + <td>Start of range of source IP address</td> + </tr> + <tr> + <td>srcipto</td> + <td>IP_ADDR</td> + <td>End of range of source IP address</td> + </tr> + <tr> + <td>dstipfrom</td> + <td>IP_ADDR</td> + <td>Start of range of destination IP address</td> + </tr> + <tr> + <td>dstipto</td> + <td>IP_ADDR</td> + <td>End of range of destination IP address</td> + </tr> + </table> + <p> + <br><br> + </p> + + + <h5><a name="nwfelemsRulesProtoTCP-ipv6">TCP/UDP/SCTP over IPV6</a></h5> + <p> + Protocol ID: <code>tcp-ipv6</code>, <code>udp-ipv6</code>, <code>sctp-ipv6</code> + <br> + Note: The chain parameter is ignored for this type of traffic + and should either be omitted or set to <code>root</code>. + </p> + <table class="top_table"> + <tr> + <th> Attribute </th> + <th> Datatype </th> + <th> Semantics </th> + </tr> + <tr> + <td>srcmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of sender</td> + </tr> + <tr> + <td>srcipaddr</td> + <td>IPV6_ADDR</td> + <td>Source IP address</td> + </tr> + <tr> + <td>srcipmask</td> + <td>IPV6_MASK</td> + <td>Mask applied to source IP address</td> + </tr> + <tr> + <td>dstipaddr</td> + <td>IPV6_ADDR</td> + <td>Destination IP address</td> + </tr> + <tr> + <td>dstipmask</td> + <td>IPV6_MASK</td> + <td>Mask applied to destination IP address</td> + </tr> + + <tr> + <td>srcipfrom</td> + <td>IPV6_ADDR</td> + <td>Start of range of source IP address</td> + </tr> + <tr> + <td>srcipto</td> + <td>IPV6_ADDR</td> + <td>End of range of source IP address</td> + </tr> + <tr> + <td>dstipfrom</td> + <td>IPV6_ADDR</td> + <td>Start of range of destination IP address</td> + </tr> + <tr> + <td>dstipto</td> + <td>IPV6_ADDR</td> + <td>End of range of destination IP address</td> + </tr> + + <tr> + <td>srcportstart</td> + <td>UINT16</td> + <td>Start of range of valid source ports</td> + </tr> + <tr> + <td>srcportend</td> + <td>UINT16</td> + <td>End of range of valid source ports</td> + </tr> + <tr> + <td>dstportstart</td> + <td>UINT16</td> + <td>Start of range of valid destination ports</td> + </tr> + <tr> + <td>dstportend</td> + <td>UINT16</td> + <td>End of range of valid destination ports</td> + </tr> + </table> + <p> + <br><br> + </p> + + + <h5><a name="nwfelemsRulesProtoICMPv6">ICMPv6</a></h5> + <p> + Protocol ID: <code>icmpv6</code> + <br> + Note: The chain parameter is ignored for this type of traffic + and should either be omitted or set to <code>root</code>. + </p> + <table class="top_table"> + <tr> + <th> Attribute </th> + <th> Datatype </th> + <th> Semantics </th> + </tr> + <tr> + <td>srcmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of sender</td> + </tr> + <tr> + <td>srcipaddr</td> + <td>IPV6_ADDR</td> + <td>Source IPv6 address</td> + </tr> + <tr> + <td>srcipmask</td> + <td>IPV6_MASK</td> + <td>Mask applied to source IPv6 address</td> + </tr> + <tr> + <td>dstipaddr</td> + <td>IPV6_ADDR</td> + <td>Destination IPv6 address</td> + </tr> + <tr> + <td>dstipmask</td> + <td>IPV6_MASK</td> + <td>Mask applied to destination IPv6 address</td> + </tr> + + <tr> + <td>srcipfrom</td> + <td>IPV6_ADDR</td> + <td>Start of range of source IP address</td> + </tr> + <tr> + <td>srcipto</td> + <td>IPV6_ADDR</td> + <td>End of range of source IP address</td> + </tr> + <tr> + <td>dstipfrom</td> + <td>IPV6_ADDR</td> + <td>Start of range of destination IP address</td> + </tr> + <tr> + <td>dstipto</td> + <td>IPV6_ADDR</td> + <td>End of range of destination IP address</td> + </tr> + + <tr> + <td>type</td> + <td>UINT16</td> + <td>ICMPv6 type</td> + </tr> + <tr> + <td>code</td> + <td>UINT16</td> + <td>ICMPv6 code</td> + </tr> + </table> + <p> + <br><br> + </p> + + <h5><a name="nwfelemsRulesProtoMiscv6">IGMP, ESP, AH, UDPLITE, 'ALL' over IPv6</a></h5> + <p> + Protocol ID: <code>igmp-ipv6</code>, <code>esp-ipv6</code>, <code>ah-ipv6</code>, <code>udplite-ipv6</code>, <code>all-ipv6</code> + <br> + Note: The chain parameter is ignored for this type of traffic + and should either be omitted or set to <code>root</code>. + </p> + <table class="top_table"> + <tr> + <th> Attribute </th> + <th> Datatype </th> + <th> Semantics </th> + </tr> + <tr> + <td>srcmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of sender</td> + </tr> + <tr> + <td>srcipaddr</td> + <td>IPV6_ADDR</td> + <td>Source IPv6 address</td> + </tr> + <tr> + <td>srcipmask</td> + <td>IPV6_MASK</td> + <td>Mask applied to source IPv6 address</td> + </tr> + <tr> + <td>dstipaddr</td> + <td>IPV6_ADDR</td> + <td>Destination IPv6 address</td> + </tr> + <tr> + <td>dstipmask</td> + <td>IPV6_MASK</td> + <td>Mask applied to destination IPv6 address</td> + </tr> + + <tr> + <td>srcipfrom</td> + <td>IPV6_ADDR</td> + <td>Start of range of source IP address</td> + </tr> + <tr> + <td>srcipto</td> + <td>IPV6_ADDR</td> + <td>End of range of source IP address</td> + </tr> + <tr> + <td>dstipfrom</td> + <td>IPV6_ADDR</td> + <td>Start of range of destination IP address</td> + </tr> + <tr> + <td>dstipto</td> + <td>IPV6_ADDR</td> + <td>End of range of destination IP address</td> + </tr> + + </table> + <p> + <br><br> + </p> + + <h2><a name="nwfcli">Command line tools</a></h2> + <p> + The libvirt command line tool <code>virsh</code> has been extended + with life-cycle support for network filters. All commands related + to the network filtering subsystem start with the prefix + <code>nwfilter</code>. The following commands are available: + <p> + <ul> + <li>nwfilter-list : list UUIDs and names of all network filters</li> + <li>nwfilter-define : define a new network filter or update an existing one</li> + <li>nwfilter-undefine : delete a network filter given its name; it must not be currently in use</li> + <li>nwfilter-dumpxml : display a network filter given its name</li> + <li>nwfilter-edit : edit a network filter given its name</li> + </ul> + + <h2><a name="nwfexamples">Example network filters</a></h2> + <p> + The following is a list of example network filters that are + automatically installed with libvirt. </p> + <table class="top_table"> + <tr> + <th> Name </th> + <th> Description </th> + </tr> + <tr> + <td> no-arp-spoofing </td> + <td> Prevent a VM from spoofing ARP traffic; this filter + only allows ARP request and reply messages and enforces + that those packets contain the MAC and IP addresses + of the VM.</td> + </tr> + <tr> + <td> allow-dhcp </td> + <td> Allow a VM to request an IP address via DHCP (from any + DHCP server)</td> + </tr> + <tr> + <td> allow-dhcp-server </td> + <td> Allow a VM to request an IP address from a specified + DHCP server. The dotted decimal IP address of the DHCP + server must be provided in a reference to this filter. + The name of the variable must be <i>DHCPSERVER</i>.</td> + </tr> + <tr> + <td> no-ip-spoofing </td> + <td> Prevent a VM from sending of IP packets with + a source IP address different from the one + in the packet. </td> + </tr> + <tr> + <td> no-ip-multicast </td> + <td> Prevent a VM from sending IP multicast packets. </td> + </tr> + <tr> + <td> clean-traffic </td> + <td> Prevent MAC, IP and ARP spoofing. This filter references + several other filters as building blocks. </td> + </tr> + </table> + <p> + Note that most of the above filters are only building blocks and + require a combination with other filters to provide useful network + traffic filtering. + The most useful one in the above list is the <i>clean-traffic</i> + filter. This filter itself can for example be combined with the + <i>no-ip-multicast</i> + filter to prevent virtual machines from sending IP multicast traffic + on top of the prevention of packet spoofing. + </p> + + <h2><a name="nwfwrite">Writing your own filters</a></h2> + + <p> + Since libvirt only provides a couple of example networking filters, you + may consider writing your own. When planning on doing so + there are a couple of things + you may need to know regarding the network filtering subsystem and how + it works internally. Certainly you also have to know and understand + the protocols very well that you want to be filtering on so that + no further traffic than what you want can pass and that in fact the + traffic you want to allow does pass. + <br><br> + The network filtering subsystem is currently only available on + Linux hosts and only works for Qemu and KVM type of virtual machines. + On Linux + it builds upon the support for <code>ebtables</code>, <code>iptables + </code> and <code>ip6tables</code> and makes use of their features. + From the above list of supported protocols the following ones are + implemented using <code>ebtables</code>: + </p> + <ul> + <li>mac</li> + <li>arp, rarp</li> + <li>ip</li> + <li>ipv6</li> + </uL> + + <p> + All other protocols over IPv4 are supported using iptables, those over + IPv6 are implemented using ip6tables. + <br><br> + On a Linux host, all traffic filtering instantiated by libvirt's network + filter subsystem first passes through the filtering support implemented + by ebtables and only then through iptables or ip6tables filters. If + a filter tree has rules with the protocols <code>mac</code>, + <code>arp</code>, <code>rarp</code>, <code>ip</code>, or <code>ipv6</code> + ebtables rules will automatically be instantiated. + <br> + The role of the <code>chain</code> attribute in the network filter + XML is that internally a new user-defined ebtables table is created + that then for example receives all <code>arp</code> traffic coming + from or going to a virtual machine, if the chain <code>arp</code> + has been specified. Further, a rule is generated in an interface's + <code>root</code> chain that directs all ipv4 traffic into the + user-defined chain. Therefore, all ARP traffic rules should then be + placed into filters specifying this chain. This type of branching + into user-define tables is only supported with filtering on the ebtables + layer. + <br> + As an example, it is + possible to filter on UDP traffic by source and destination ports using + the <code>ip</code> protocol filter and specifying attributes for the + protocol, source and destination IP addresses and ports of UDP packets + that are to be accepted. This allows + early filtering of UDP traffic with ebtables. However, once an IP or IPv6 + packet, such as a UDP packet, + has passed the ebtables layer and there is at least one rule in a filter + tree that instantiates iptables or ip6tables rules, a rule to let + the UDP packet pass will also be necessary to be provided for those + filtering layers. This can be + achieved with a rule containing an approriate <code>udp</code> or + <code>udp-ipv6</code> traffic filtering node. + </p> + + <h3><a name="nwfwriteexample">Example custom filter</a></h3> + <p> + As an example we want to now build a filter that fulfills the following + list of requirements: + </p> + <ul> + <li>prevents a VM's interface from MAC, IP and ARP spoofing</li> + <li>opens only TCP ports 22 and 80 of a VM's interface</li> + <li>allows the VM to send ping traffic from an interface + but no let the VM be pinged on the interface</li> + </ul> + <p> + The requirement to prevent spoofing is fulfilled by the existing + <code>clean-traffic</code> network filter, thus we will reference this + filter from our custom filter. + <br> + To enable traffic for TCP ports 22 and 80 we will add 2 rules to + enable this type of traffic. To allow the VM to send ping traffic + we will add a rule for ICMP traffic. For simplicity reasons + we allow general ICMP traffic to be initated from the VM, not + just ICMP echo request and response messages. To then + disallow all other traffic to reach or be initated by the + VM we will then need to add a rule that drops all other traffic. + Assuming our VM is called <i>test</i> and + the interface we want to associate our filter with is called <i>eth0</i>, + we name our filter <i>test-eth0</i>. + The result of these considerations is the following network filter XML: + </p> +<pre> +<filter name='test-eth0'> +  + <filterref filter='clean-traffic'/> + +  + <rule action='accept' direction='in'> + <tcp dstportstart='22'/> + </rule> + + <rule action='accept' direction='in'> + <tcp dstportstart='80'/> + </rule> + +  + <rule action='accept' direction='out'> + <icmp/> + </rule> + +  + <rule action='drop' direction='inout'> + <all/> + </rule> + +</filter> +</pre> + <p> + Note that none of the rules in the above XML contain the + IP address of the VM as either source or destination address, yet + the filtering of the traffic works correctly. The reason is that + the evaluation of the rules internally happens on a + per-interface basis and the rules are evaluated based on the knowledge + about which (tap) interface has sent or will receive the packet rather + than what their source or destination IP address may be. + <br><br> + An XML fragment for a possible network interface description inside + the domain XML of the <code>test</code> VM could then look like this: + </p> +<pre> + [...] + <interface type='bridge'> + <source bridge='mybridge'/> + <filterref filter='test-eth0'/> + </interface> + [...] +</pre> + + <p> + To more strictly control the ICMP traffic and enforce that only + ICMP echo requests can be sent from the VM + and only ICMP echo responses be received by the VM, the above + <code>ICMP</code> rule can be replaced with the following two rules: + </p> +<pre> +  + <rule action='accept' direction='out'> + <icmp type='8'/> + </rule> + +  + <rule action='accept' direction='in'> + <icmp type='0'/> + </rule> +</pre> + + + <h2><a name="nwflimits">Limitations</a></h2> + <p> + The following sections list (current) limitations of the network + filtering subsystem. + </p> + + <h3><a name="nwflimitsIP">IP Address Detection</a></h3> + <p> + In case a network filter references the variable + <i>IP</i> and no variable was defined in any higher layer + references to the filter, IP address detection will automatically + be started when the filter is to be instantiated (VM start, interface + hotplug event). Only IPv4 + addresses can be detected and only a single IP address + legitimately in use by a VM on a single interface will be detected. + In case a VM was to use multiple IP address on a single interface + (IP aliasing), + the IP addresses would have to be provided explicitly either + in the network filter itself or as variables used in attributes' + values. These + variables must then be defined in a higher level reference to the filter + and each assigned the value of the IP address that the VM is expected + to be using. + Different IP addresses in use by multiple interfaces of a VM + (one IP address each) will be independently detected. + <br><br> + Once a VM's IP address has been detected, its IP network traffic + may be locked to that address, if for example IP address spoofing + is prevented by one of its filters. In that case the user of the VM + will not be able to change the IP address on the interface inside + the VM, which would be considered IP address spoofing. + <br><br> + In case a VM is resumed after suspension or migrated, IP address + detection will be restarted. + </p> + + <h3><a name="nwflimitsmigr">VM Migration</a></h3> + <p> + VM migration is only supported if the whole filter tree + that is referenced by a virtual machine's top level filter + is also available on the target host. The network filter + <i>clean-traffic</i> + for example should be available on all libvirt installations + of version 0.8.1 or later and thus enable migration of VMs that + for example reference this filter. All other + custom filters must be migrated using higher layer software. It is + outside the scope of libvirt to ensure that referenced filters + on the source system are equivalent to those on the target system + and vice versa. + <br><br> + Migration must occurr between libvirt insallations of version + 0.8.1 or later in order not to loose the network traffic filters + associated with an interface. + </p> + + </body> +</html>

2 2

[libvirt] [PATCH v2] storage: Check for invalid storage mode before opening
by Cole Robinson 24 May '10

24 May '10

If a directory pool contains pipes or sockets, a pool start can fail or hang: https://bugzilla.redhat.com/show_bug.cgi?id=589577 We already try to avoid these special files, but only attempt after opening the path, which is where the problems lie. Unify volume opening into a single function which runs stat() before any open() call. Directory pools can then proceed along, ignoring the invalid files. v2: Use ATTRIBUTE_NONNULL. Drop stat check, just open with O_NONBLOCK|O_NOCTTY. Signed-off-by: Cole Robinson <crobinso(a)redhat.com> --- src/storage/storage_backend.c | 23 +++++++++++++++++------ src/storage/storage_backend.h | 2 ++ src/storage/storage_backend_fs.c | 7 ++----- src/storage/storage_backend_logical.c | 9 +++------ src/storage/storage_backend_mpath.c | 9 +++------ src/storage/storage_backend_scsi.c | 17 ++++++++--------- 6 files changed, 35 insertions(+), 32 deletions(-) diff --git a/src/storage/storage_backend.c b/src/storage/storage_backend.c index f4124df..bbd3375 100644 --- a/src/storage/storage_backend.c +++ b/src/storage/storage_backend.c @@ -872,6 +872,20 @@ virStorageBackendForType(int type) { return NULL; } +int +virStorageBackendVolOpen(const char *path) +{ + int fd; + + if ((fd = open(path, O_RDONLY|O_NONBLOCK|O_NOCTTY)) < 0) { + virReportSystemError(errno, + _("cannot open volume '%s'"), + path); + return -1; + } + + return fd; +} int virStorageBackendUpdateVolTargetInfo(virStorageVolTargetPtr target, @@ -880,13 +894,10 @@ virStorageBackendUpdateVolTargetInfo(virStorageVolTargetPtr target, { int ret, fd; - if ((fd = open(target->path, O_RDONLY)) < 0) { - virReportSystemError(errno, - _("cannot open volume '%s'"), - target->path); - return -1; - } + if ((ret = virStorageBackendVolOpen(target->path)) < 0) + return ret; + fd = ret; ret = virStorageBackendUpdateVolTargetInfoFD(target, fd, allocation, diff --git a/src/storage/storage_backend.h b/src/storage/storage_backend.h index 907c4bc..45683ec 100644 --- a/src/storage/storage_backend.h +++ b/src/storage/storage_backend.h @@ -80,6 +80,8 @@ struct _virStorageBackend { virStorageBackendPtr virStorageBackendForType(int type); +int virStorageBackendVolOpen(const char *path) +ATTRIBUTE_NONNULL(1); int virStorageBackendUpdateVolInfo(virStorageVolDefPtr vol, int withCapacity); diff --git a/src/storage/storage_backend_fs.c b/src/storage/storage_backend_fs.c index c96c4f3..1650177 100644 --- a/src/storage/storage_backend_fs.c +++ b/src/storage/storage_backend_fs.c @@ -61,12 +61,9 @@ virStorageBackendProbeTarget(virStorageVolTargetPtr target, if (encryption) *encryption = NULL; - if ((fd = open(target->path, O_RDONLY)) < 0) { - virReportSystemError(errno, - _("cannot open volume '%s'"), - target->path); + if ((ret = virStorageBackendVolOpen(target->path)) < 0) return -1; - } + fd = ret; if ((ret = virStorageBackendUpdateVolTargetInfoFD(target, fd, allocation, diff --git a/src/storage/storage_backend_logical.c b/src/storage/storage_backend_logical.c index 06238d1..616ca1a 100644 --- a/src/storage/storage_backend_logical.c +++ b/src/storage/storage_backend_logical.c @@ -559,7 +559,7 @@ virStorageBackendLogicalCreateVol(virConnectPtr conn, virStoragePoolObjPtr pool, virStorageVolDefPtr vol) { - int fd = -1; + int fdret, fd = -1; char size[100]; const char *cmdargvnew[] = { LVCREATE, "--name", vol->name, "-L", size, @@ -602,12 +602,9 @@ virStorageBackendLogicalCreateVol(virConnectPtr conn, if (virRun(cmdargv, NULL) < 0) return -1; - if ((fd = open(vol->target.path, O_RDONLY)) < 0) { - virReportSystemError(errno, - _("cannot read path '%s'"), - vol->target.path); + if ((fdret = virStorageBackendVolOpen(vol->target.path)) < 0) goto cleanup; - } + fd = fdret; /* We can only chown/grp if root */ if (getuid() == 0) { diff --git a/src/storage/storage_backend_mpath.c b/src/storage/storage_backend_mpath.c index 8d0a92a..a62dc3d 100644 --- a/src/storage/storage_backend_mpath.c +++ b/src/storage/storage_backend_mpath.c @@ -44,14 +44,11 @@ virStorageBackendMpathUpdateVolTargetInfo(virStorageVolTargetPtr target, unsigned long long *capacity) { int ret = -1; - int fd = -1; + int fdret, fd = -1; - if ((fd = open(target->path, O_RDONLY)) < 0) { - virReportSystemError(errno, - _("cannot open volume '%s'"), - target->path); + if ((fdret = virStorageBackendVolOpen(target->path)) < 0) goto out; - } + fd = fdret; if (virStorageBackendUpdateVolTargetInfoFD(target, fd, diff --git a/src/storage/storage_backend_scsi.c b/src/storage/storage_backend_scsi.c index 40f4fd8..71492cf 100644 --- a/src/storage/storage_backend_scsi.c +++ b/src/storage/storage_backend_scsi.c @@ -135,14 +135,12 @@ virStorageBackendSCSIUpdateVolTargetInfo(virStorageVolTargetPtr target, unsigned long long *allocation, unsigned long long *capacity) { - int fd, ret = -1; + int fdret, fd = -1; + int ret = -1; - if ((fd = open(target->path, O_RDONLY)) < 0) { - virReportSystemError(errno, - _("cannot open volume '%s'"), - target->path); - return -1; - } + if ((fdret = virStorageBackendVolOpen(target->path)) < 0) + goto cleanup; + fd = fdret; if (virStorageBackendUpdateVolTargetInfoFD(target, fd, @@ -155,8 +153,9 @@ virStorageBackendSCSIUpdateVolTargetInfo(virStorageVolTargetPtr target, ret = 0; - cleanup: - close(fd); +cleanup: + if (fd >= 0) + close(fd); return ret; } -- 1.6.6.1

3 4

[libvirt] [v3 PATCH] add 802.1Qbh handling for port-profiles based on Stefan's previous patches
by Scott Feldman 24 May '10

24 May '10

From: Scott Feldman <scofeldm(a)cisco.com> This patch builds on the work recently posted by Stefan Berger. It builds on top of Stefan's two posted patches: [PATCH v8] vepa: parsing for 802.1Qb{g|h} XML [RFC][PATCH 1/3] vepa+vsi: Introduce dependency on libnl [PATCH v3] Add host UUID (to libvirt capabilities) Stefan's RFC patches 2/3 and 3/3 are incorporated into my patch. Changes from v2 to v3: - remove debug fprintfs - use virGetHostUUID (thanks Stefan!) - fix compile issue when latest if_link.h isn't available - change poll timeout to 10s, at 1/8 intervals - if polling times out, log msg and return -ETIMEDOUT Changes from v1 to v2: - Add Stefan's code for getPortProfileStatus - Poll for up to 2 secs for port-profile status, at 1/8 sec intervals: - if status indicates error, abort openMacvtapTap - if status indicates success, exit polling - if status is "in-progress" after 2 secs of polling, exit polling loop silently, without error My patch finishes out the 802.1Qbh parts, which Stefan had mostly complete. I've tested using the recent kernel updates for VF_PORT netlink msgs and enic for Cisco's 10G Ethernet NIC. I tested many VMs, each with several direct interfaces, each configured with a port-profile per the XML. VM-to-VM, and VM-to-external work as expected. VM-to-VM on same host (using same NIC) works same as VM-to-VM where VMs are on diff hosts. I'm able to change settings on the port-profile while the VM is running to change the virtual port behaviour. For example, adjusting a QoS setting like rate limit. All VMs with interfaces using that port-profile immediatly see the effect of the change to the port-profile. I don't have a SR-IOV device to test so source dev is a non-SR-IOV device, but most of the code paths include support for specifing the source dev and VF index. We'll need to complete this by discovering the PF given the VF linkdev. Once we have the PF, we'll also have the VF index. All this info- mation is available from sysfs. Signed-off-by: Scott Feldman <scofeldm(a)cisco.com> --- configure.ac | 16 + src/util/macvtap.c | 802 +++++++++++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 805 insertions(+), 13 deletions(-) diff --git a/configure.ac b/configure.ac index 36ba703..885b0ae 100644 --- a/configure.ac +++ b/configure.ac @@ -2005,13 +2005,26 @@ if test "$with_macvtap" != "no" ; then fi AM_CONDITIONAL([WITH_MACVTAP], [test "$with_macvtap" = "yes"]) +AC_TRY_COMPILE([ #include <sys/socket.h> + #include <linux/rtnetlink.h> ], + [ int x = IFLA_PORT_MAX; ], + [ with_virtualport=yes ], + [ with_virtualport=no ]) +if test "$with_virtualport" = "yes"; then + val=1 +else + val=0 +fi +AC_DEFINE_UNQUOTED([WITH_VIRTUALPORT], $val, [whether vsi vepa support is enabled]) +AM_CONDITIONAL([WITH_VIRTUALPORT], [test "$with_virtualport" = "yes"]) + dnl netlink library LIBNL_CFLAGS="" LIBNL_LIBS="" -if test "$with_macvtap" = "yes"; then +if test "$with_macvtap" = "yes" || "$with_virtualport" = "yes"; then PKG_CHECK_MODULES([LIBNL], [libnl-1 >= $LIBNL_REQUIRED], [ ], [ AC_MSG_ERROR([libnl >= $LIBNL_REQUIRED is required for macvtap support]) @@ -2084,6 +2097,7 @@ AC_MSG_NOTICE([ Network: $with_network]) AC_MSG_NOTICE([Libvirtd: $with_libvirtd]) AC_MSG_NOTICE([ netcf: $with_netcf]) AC_MSG_NOTICE([ macvtap: $with_macvtap]) +AC_MSG_NOTICE([virtport: $with_virtualport]) AC_MSG_NOTICE([]) AC_MSG_NOTICE([Storage Drivers]) AC_MSG_NOTICE([]) diff --git a/src/util/macvtap.c b/src/util/macvtap.c index da81447..76eea37 100644 --- a/src/util/macvtap.c +++ b/src/util/macvtap.c @@ -27,7 +27,7 @@ #include <config.h> -#if WITH_MACVTAP +#if WITH_MACVTAP || WITH_VIRTUALPORT # include <stdio.h> # include <errno.h> @@ -41,6 +41,8 @@ # include <linux/rtnetlink.h> # include <linux/if_tun.h> +# include <netlink/msg.h> + # include "util.h" # include "memory.h" # include "logging.h" @@ -48,6 +50,7 @@ # include "interface.h" # include "conf/domain_conf.h" # include "virterror_internal.h" +# include "uuid.h" # define VIR_FROM_THIS VIR_FROM_NET @@ -58,15 +61,23 @@ # define MACVTAP_NAME_PREFIX "macvtap" # define MACVTAP_NAME_PATTERN "macvtap%d" +# define MICROSEC_PER_SEC (1000 * 1000) + static int associatePortProfileId(const char *macvtap_ifname, + const char *linkdev, const virVirtualPortProfileDefPtr virtPort, - int vf, const unsigned char *vmuuid); static int disassociatePortProfileId(const char *macvtap_ifname, + const char *linkdev, const virVirtualPortProfileDefPtr virtPort); +enum virVirtualPortOp { + ASSOCIATE = 0x1, + DISASSOCIATE = 0x2, +}; + static int nlOpen(void) { @@ -159,6 +170,156 @@ err_exit: } +# ifdef IFLA_VF_PORT_MAX + +/** + * nlCommWaitSuccess: + * + * @nlmsg: pointer to netlink message + * @nl_grousp: the netlink multicast groups to send to + * @respbuf: pointer to pointer where response buffer will be allocated + * @respbuflen: pointer to integer holding the size of the response buffer + * on return of the function. + * @to_usecs: timeout in microseconds to wait for a success message + * to be returned + * + * Send the given message to the netlink multicast group and receive + * responses. Skip responses indicating an error and keep on receiving + * responses until a success response is returned. + * Returns 0 on success, -1 on error. In case of error, no response + * buffer will be returned. + */ +static int +nlCommWaitSuccess(struct nlmsghdr *nlmsg, int nl_groups, + char **respbuf, int *respbuflen, long to_usecs) +{ + int rc = 0; + struct sockaddr_nl nladdr = { + .nl_family = AF_NETLINK, + .nl_pid = getpid(), + .nl_groups = nl_groups, + }; + int rcvChunkSize = 1024; // expecting less than that + int rcvoffset = 0; + ssize_t nbytes; + int n; + struct timeval tv = { + .tv_sec = to_usecs / MICROSEC_PER_SEC, + .tv_usec = to_usecs % MICROSEC_PER_SEC, + }; + fd_set rfds; + bool gotvalid = false; + int fd = nlOpen(); + static uint32_t seq = 0x1234; + uint32_t myseq = seq++; + uint32_t mypid = getpid(); + + if (fd < 0) + return -1; + + nlmsg->nlmsg_pid = mypid; + nlmsg->nlmsg_seq = myseq; + nlmsg->nlmsg_flags |= NLM_F_ACK; + + nbytes = sendto(fd, (void *)nlmsg, nlmsg->nlmsg_len, 0, + (struct sockaddr *)&nladdr, sizeof(nladdr)); + if (nbytes < 0) { + virReportSystemError(errno, + "%s", _("cannot send to netlink socket")); + rc = -1; + goto err_exit; + } + + while (!gotvalid) { + rcvoffset = 0; + while (1) { + socklen_t addrlen = sizeof(nladdr); + + if (VIR_REALLOC_N(*respbuf, rcvoffset+rcvChunkSize) < 0) { + virReportOOMError(); + rc = -1; + goto err_exit; + } + + FD_ZERO(&rfds); + FD_SET(fd, &rfds); + + n = select(fd + 1, &rfds, NULL, NULL, &tv); + if (n == 0) { + rc = -1; + goto err_exit; + } + + nbytes = recvfrom(fd, &((*respbuf)[rcvoffset]), rcvChunkSize, 0, + (struct sockaddr *)&nladdr, &addrlen); + if (nbytes < 0) { + if (errno == EAGAIN || errno == EINTR) + continue; + virReportSystemError(errno, "%s", + _("error receiving from netlink socket")); + rc = -1; + goto err_exit; + } + rcvoffset += nbytes; + break; + } + *respbuflen = rcvoffset; + + /* check message for error */ + if (*respbuflen > NLMSG_LENGTH(0) && *respbuf != NULL) { + struct nlmsghdr *resp = (struct nlmsghdr *)*respbuf; + struct nlmsgerr *err; + + if (resp->nlmsg_pid != mypid || + resp->nlmsg_seq != myseq) + continue; + + /* skip reflected message */ + if (resp->nlmsg_type & 0x10) + continue; + + switch (resp->nlmsg_type) { + case NLMSG_ERROR: + err = (struct nlmsgerr *)NLMSG_DATA(resp); + if (resp->nlmsg_len >= NLMSG_LENGTH(sizeof(*err))) { + if (-err->error != EOPNOTSUPP) { + /* assuming error msg from daemon */ + gotvalid = true; + break; + } + } + /* whatever this is, skip it */ + VIR_FREE(*respbuf); + *respbuf = NULL; + *respbuflen = 0; + break; + + case NLMSG_DONE: + gotvalid = true; + break; + + default: + VIR_FREE(*respbuf); + *respbuf = NULL; + *respbuflen = 0; + break; + } + } + } + +err_exit: + if (rc == -1) { + VIR_FREE(*respbuf); + *respbuf = NULL; + *respbuflen = 0; + } + + nlClose(fd); + return rc; +} + +#endif + static struct rtattr * rtattrCreate(char *buffer, int bufsize, int type, const void *data, int datalen) @@ -204,6 +365,8 @@ nlAppend(struct nlmsghdr *nlm, int totlen, const void *data, int datalen) } +# if WITH_MACVTAP + static int link_add(const char *type, const unsigned char *macaddress, int macaddrsize, @@ -651,8 +814,8 @@ create_name: } if (associatePortProfileId(cr_ifname, + net->data.direct.linkdev, &net->data.direct.virtPortProfile, - -1, vmuuid) != 0) { rc = -1; goto link_del_exit; @@ -685,6 +848,7 @@ create_name: disassociate_exit: disassociatePortProfileId(cr_ifname, + net->data.direct.linkdev, &net->data.direct.virtPortProfile); link_del_exit: @@ -707,21 +871,606 @@ delMacvtap(virDomainNetDefPtr net) { if (net->ifname) { disassociatePortProfileId(net->ifname, + net->data.direct.linkdev, &net->data.direct.virtPortProfile); link_del(net->ifname); } } -#endif +# endif + + +# ifdef IFLA_PORT_MAX + +static struct nla_policy ifla_policy[IFLA_MAX + 1] = +{ + [IFLA_VF_PORTS] = { .type = NLA_NESTED }, +}; + +static struct nla_policy ifla_vf_ports_policy[IFLA_VF_PORT_MAX + 1] = +{ + [IFLA_VF_PORT] = { .type = NLA_NESTED }, +}; + +static struct nla_policy ifla_port_policy[IFLA_PORT_MAX + 1] = +{ + [IFLA_PORT_RESPONSE] = { .type = NLA_U16 }, +}; + + +static int +link_dump(int ifindex, const char *ifname, struct nlattr **tb, + char **recvbuf) +{ + int rc = 0; + char nlmsgbuf[256] = { 0, }; + struct nlmsghdr *nlm = (struct nlmsghdr *)nlmsgbuf, *resp; + struct nlmsgerr *err; + char rtattbuf[64]; + struct rtattr *rta; + struct ifinfomsg i = { + .ifi_family = AF_UNSPEC, + .ifi_index = ifindex + }; + int recvbuflen; + + *recvbuf = NULL; + + nlInit(nlm, NLM_F_REQUEST, RTM_GETLINK); + + if (!nlAppend(nlm, sizeof(nlmsgbuf), &i, sizeof(i))) + goto buffer_too_small; + + if (ifindex < 0 && ifname != NULL) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_IFNAME, + ifname, strlen(ifname) + 1); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (nlComm(nlm, recvbuf, &recvbuflen) < 0) + return -1; + + if (recvbuflen < NLMSG_LENGTH(0) || *recvbuf == NULL) + goto malformed_resp; + + resp = (struct nlmsghdr *)*recvbuf; + + switch (resp->nlmsg_type) { + case NLMSG_ERROR: + err = (struct nlmsgerr *)NLMSG_DATA(resp); + if (resp->nlmsg_len < NLMSG_LENGTH(sizeof(*err))) + goto malformed_resp; + + switch (-err->error) { + case 0: + break; + + default: + virReportSystemError(-err->error, + _("error dumping %d interface"), + ifindex); + rc = -1; + } + break; + + case GENL_ID_CTRL: + case NLMSG_DONE: + if (nlmsg_parse(resp, sizeof(struct ifinfomsg), + tb, IFLA_MAX, ifla_policy)) { + goto malformed_resp; + } + break; + + default: + goto malformed_resp; + } + + if (rc != 0) + VIR_FREE(*recvbuf); + + return rc; + +malformed_resp: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("malformed netlink response message")); + VIR_FREE(*recvbuf); + return -1; + +buffer_too_small: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("internal buffer is too small")); + return -1; +} + + +static int +getPortProfileStatus(struct nlattr **tb, int32_t vf, uint16_t *status) +{ + int rc = 1; + const char *msg = NULL; + struct nlattr *tb2[IFLA_VF_PORT_MAX + 1], + *tb3[IFLA_PORT_MAX+1]; + + if (vf == PORT_SELF_VF) { + if (tb[IFLA_PORT_SELF]) { + if (nla_parse_nested(tb3, IFLA_PORT_MAX, tb[IFLA_PORT_SELF], + ifla_port_policy)) { + msg = _("error parsing nested IFLA_VF_PORT part"); + goto err_exit; + } + } + } else { + if (tb[IFLA_VF_PORTS]) { + if (nla_parse_nested(tb2, IFLA_VF_PORT_MAX, tb[IFLA_VF_PORTS], + ifla_vf_ports_policy)) { + msg = _("error parsing nested IFLA_VF_PORTS part"); + goto err_exit; + } + if (tb2[IFLA_VF_PORT]) { + if (nla_parse_nested(tb3, IFLA_PORT_MAX, tb2[IFLA_VF_PORT], + ifla_port_policy)) { + msg = _("error parsing nested IFLA_VF_PORT part"); + goto err_exit; + } + } + } + } + + if (tb3[IFLA_PORT_RESPONSE]) { + *status = *(uint16_t *)RTA_DATA(tb3[IFLA_PORT_RESPONSE]); + rc = 0; + } else { + msg = _("no IFLA_PORT_RESPONSE found in netlink message"); + goto err_exit; + } + +err_exit: + if (msg) + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", msg); + + return rc; +} + + +static int +doPortProfileOpSetLink(bool multicast, + const char *ifname, int ifindex, + const char *profileId, + struct ifla_port_vsi *portVsi, + const unsigned char *instanceId, + const unsigned char *hostUUID, + int32_t vf, + uint8_t op) +{ + int rc = 0; + char nlmsgbuf[256]; + struct nlmsghdr *nlm = (struct nlmsghdr *)nlmsgbuf, *resp; + struct nlmsgerr *err; + char rtattbuf[64]; + struct rtattr *rta, *vfports, *vfport; + struct ifinfomsg ifinfo = { + .ifi_family = AF_UNSPEC, + .ifi_index = ifindex, + }; + char *recvbuf = NULL; + int recvbuflen = 0; + + memset(&nlmsgbuf, 0, sizeof(nlmsgbuf)); + + nlInit(nlm, NLM_F_REQUEST, RTM_SETLINK); + + if (!nlAppend(nlm, sizeof(nlmsgbuf), &ifinfo, sizeof(ifinfo))) + goto buffer_too_small; + + if (vf == PORT_SELF_VF) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_SELF, NULL, 0); + } else { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_VF_PORTS, NULL, 0); + if (!rta) + goto buffer_too_small; + + if (!(vfports = nlAppend(nlm, sizeof(nlmsgbuf), + rtattbuf, rta->rta_len))) + goto buffer_too_small; + + /* beging nesting vfports */ + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_VF_PORT, NULL, 0); + } + + if (!rta) + goto buffer_too_small; + + if (!(vfport = nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len))) + goto buffer_too_small; + + if (profileId) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_PROFILE, + profileId, strlen(profileId) + 1); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + if (portVsi) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_VSI_TYPE, + portVsi, sizeof(*portVsi)); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (instanceId) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_INSTANCE_UUID, + instanceId, VIR_UUID_BUFLEN); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (hostUUID) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_HOST_UUID, + hostUUID, VIR_UUID_BUFLEN); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (vf != PORT_SELF_VF) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_VF, + &vf, sizeof(vf)); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_REQUEST, + &op, sizeof(op)); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + + /* end nesting of vport */ + vfport->rta_len = (char *)nlm + nlm->nlmsg_len - (char *)vfport; + + if (vf != PORT_SELF_VF) { + /* end nesting of vfports */ + vfports->rta_len = (char *)nlm + nlm->nlmsg_len - (char *)vfports; + } + + if (!multicast) { + if (nlComm(nlm, &recvbuf, &recvbuflen) < 0) + return -1; + } else { + if (nlCommWaitSuccess(nlm, RTMGRP_LINK, &recvbuf, &recvbuflen, + 5 * MICROSEC_PER_SEC) < 0) + return -1; + } + + if (recvbuflen < NLMSG_LENGTH(0) || recvbuf == NULL) + goto malformed_resp; + + resp = (struct nlmsghdr *)recvbuf; + + switch (resp->nlmsg_type) { + case NLMSG_ERROR: + err = (struct nlmsgerr *)NLMSG_DATA(resp); + if (resp->nlmsg_len < NLMSG_LENGTH(sizeof(*err))) + goto malformed_resp; + + switch (-err->error) { + case 0: + break; + + default: + virReportSystemError(-err->error, + _("error during virtual port configuration of %s interface"), + ifname); + rc = -1; + } + break; + + case NLMSG_DONE: + break; + + default: + goto malformed_resp; + } + + VIR_FREE(recvbuf); + + return rc; + +malformed_resp: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("malformed netlink response message")); + VIR_FREE(recvbuf); + return -1; + +buffer_too_small: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("internal buffer is too small")); + return -1; +} + + +static int +doPortProfileOpCommon(bool multicast, + const char *ifname, int ifindex, + const char *profileId, + struct ifla_port_vsi *portVsi, + const unsigned char *instanceId, + const unsigned char *hostUUID, + int32_t vf, + uint8_t op) +{ + int rc; + char *recvbuf = NULL; + struct nlattr *tb[IFLA_MAX + 1]; + int repeats = 80; + uint16_t status = 0; + + rc = doPortProfileOpSetLink(multicast, + ifname, ifindex, + profileId, + portVsi, + instanceId, + hostUUID, + vf, + op); + + if (rc != 0) { + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("sending of PortProfileRequest failed.\n")); + return rc; + } + + if (!multicast) { + while (--repeats) { + rc = link_dump(ifindex, ifname, tb, &recvbuf); + if (rc) + goto err_exit; + rc = getPortProfileStatus(tb, vf, &status); + if (rc == 0) { + if (status == PORT_PROFILE_RESPONSE_SUCCESS || + status == PORT_VDP_RESPONSE_SUCCESS) { + break; + } else if (status == PORT_PROFILE_RESPONSE_INPROGRESS) { + // keep trying... + } else { + virReportSystemError(EINVAL, + _("error %d during port-profile setlink on %s"), + status, ifname); + rc = 1; + break; + } + } + usleep(125000); + + VIR_FREE(recvbuf); + } + } + + if (status == PORT_PROFILE_RESPONSE_INPROGRESS) { + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("port-profile setlink timed out")); + rc = -ETIMEDOUT; + } + +err_exit: + VIR_FREE(recvbuf); + + return rc; +} + +# endif /* IFLA_PORT_MAX */ + +static int +doPortProfileOp8021Qbg(const char *ifname, + const virVirtualPortProfileDefPtr virtPort, + int32_t vf, + enum virVirtualPortOp virtPortOp) +{ + int rc; + +# ifndef IFLA_VF_PORT_MAX + + (void)ifname; + (void)virtPort; + (void)vf; + (void)virtPortOp; + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Kernel VF Port support was missing at compile time.")); + rc = 1; + +# else /* IFLA_VF_PORT_MAX */ + + int op = PORT_REQUEST_ASSOCIATE; + struct ifla_port_vsi portVsi = { + .vsi_mgr_id = virtPort->u.virtPort8021Qbg.managerID, + .vsi_type_version = virtPort->u.virtPort8021Qbg.typeIDVersion, + }; + bool multicast = true; + int ifindex; + + if (ifaceGetIndex(true, ifname, &ifindex) != 0) { + rc = 1; + goto err_exit; + } + + portVsi.vsi_type_id[2] = virtPort->u.virtPort8021Qbg.typeID >> 16; + portVsi.vsi_type_id[1] = virtPort->u.virtPort8021Qbg.typeID >> 8; + portVsi.vsi_type_id[0] = virtPort->u.virtPort8021Qbg.typeID; + + switch (virtPortOp) { + case ASSOCIATE: + op = PORT_REQUEST_ASSOCIATE; + break; + case DISASSOCIATE: + op = PORT_REQUEST_DISASSOCIATE; + break; + default: + macvtapError(VIR_ERR_INTERNAL_ERROR, + _("operation type %d not supported"), op); + rc = 1; + goto err_exit; + } + + rc = doPortProfileOpCommon(multicast, NULL, ifindex, + NULL, + &portVsi, + virtPort->u.virtPort8021Qbg.instanceID, + NULL, + vf, + op); + +err_exit: + +# endif /* IFLA_VF_PORT_MAX */ + + return rc; +} + + +static int +doPortProfileOp8021Qbh(const char *ifname, + const virVirtualPortProfileDefPtr virtPort, + int32_t vf, + const unsigned char *host_uuid, + const unsigned char *vm_uuid, + enum virVirtualPortOp virtPortOp) +{ + int rc; + +# ifndef IFLA_VF_PORT_MAX + + (void)ifname; + (void)virtPort; + (void)vf; + (void)host_uuid; + (void)vm_uuid; + (void)virtPortOp; + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Kernel VF Port support was missing at compile time.")); + rc = 1; + +# else /* IFLA_VF_PORT_MAX */ + + int op = PORT_REQUEST_ASSOCIATE; + bool multicast = false; + int ifindex; + + if (ifaceGetIndex(true, ifname, &ifindex) != 0) { + rc = 1; + goto err_exit; + } + + switch (virtPortOp) { + case ASSOCIATE: + op = PORT_REQUEST_ASSOCIATE; + break; + case DISASSOCIATE: + op = PORT_REQUEST_DISASSOCIATE; + break; + default: + macvtapError(VIR_ERR_INTERNAL_ERROR, + _("operation type %d not supported"), op); + rc = 1; + goto err_exit; + } + + rc = doPortProfileOpCommon(multicast, ifname, ifindex, + virtPort->u.virtPort8021Qbh.profileID, + NULL, + vm_uuid, + host_uuid, + vf, + op); + + switch (virtPortOp) { + case ASSOCIATE: + ifaceUp(ifname); + break; + case DISASSOCIATE: + ifaceDown(ifname); + break; + } + +err_exit: + +# endif /* IFLA_VF_PORT_MAX */ + + return rc; +} + +static int +getPhysfn(const char *linkdev, + int32_t *vf, + char **physfndev) +{ + int rc = 0; + +# ifndef IFLA_VF_PORT_MAX + + (void)linkdev; + (void)vf; + (void)physfndev; + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Kernel VF Port support was missing at compile time.")); + rc = 1; + +# else /* IFLA_VF_PORT_MAX */ + + bool virtfn = false; + + if (virtfn) { + + // XXX: if linkdev is SR-IOV VF, then set vf = VF index + // XXX: and set linkdev = PF device + // XXX: need to use get_physical_function_linux() or + // XXX: something like that to get PF + // XXX: device and figure out VF index + + rc = 1; + + } else { + + /* Not SR-IOV VF: physfndev is linkdev and VF index + * refers to linkdev self + */ + + *vf = PORT_SELF_VF; + *physfndev = (char *)linkdev; + } + +# endif /* IFLA_VF_PORT_MAX */ + + return rc; +} /** * associatePortProfile * * @macvtap_ifname: The name of the macvtap device + * @linkdev: The link device in case of macvtap * @virtPort: pointer to the object holding port profile parameters - * @vf: virtual function number, -1 if to be ignored * @vmuuid : the UUID of the virtual machine + * @hostuuid : the UUID of the host machine * * Associate a port on a swtich with a profile. This function * may notify a kernel driver or an external daemon to run @@ -734,15 +1483,25 @@ delMacvtap(virDomainNetDefPtr net) */ static int associatePortProfileId(const char *macvtap_ifname, + const char *linkdev, const virVirtualPortProfileDefPtr virtPort, - int vf, const unsigned char *vmuuid) { + char *physfndev; + unsigned char hostuuid[VIR_UUID_BUFLEN]; + int32_t vf; int rc = 0; + VIR_DEBUG("Associating port profile '%p' on link device '%s'", virtPort, macvtap_ifname); - (void)vf; - (void)vmuuid; + + rc = virGetHostUUID(hostuuid); + if (rc) + goto err_exit; + + rc = getPhysfn(linkdev, &vf, &physfndev); + if (rc) + goto err_exit; switch (virtPort->virtPortType) { case VIR_VIRTUALPORT_NONE: @@ -750,14 +1509,18 @@ associatePortProfileId(const char *macvtap_ifname, break; case VIR_VIRTUALPORT_8021QBG: - + rc = doPortProfileOp8021Qbg(macvtap_ifname, virtPort, vf, + ASSOCIATE); break; case VIR_VIRTUALPORT_8021QBH: - + rc = doPortProfileOp8021Qbh(physfndev, virtPort, vf, + hostuuid, vmuuid, + ASSOCIATE); break; } +err_exit: return rc; } @@ -766,6 +1529,7 @@ associatePortProfileId(const char *macvtap_ifname, * disassociatePortProfile * * @macvtap_ifname: The name of the macvtap device + * @linkdev: The link device in case of macvtap * @virtPort: point to object holding port profile parameters * * Returns 0 in case of success, != 0 otherwise with error @@ -773,25 +1537,39 @@ associatePortProfileId(const char *macvtap_ifname, */ static int disassociatePortProfileId(const char *macvtap_ifname, + const char *linkdev, const virVirtualPortProfileDefPtr virtPort) { + char *physfndev; + int32_t vf; int rc = 0; + VIR_DEBUG("Disassociating port profile id '%p' on link device '%s' ", virtPort, macvtap_ifname); + rc = getPhysfn(linkdev, &vf, &physfndev); + if (rc) + goto err_exit; + switch (virtPort->virtPortType) { case VIR_VIRTUALPORT_NONE: case VIR_VIRTUALPORT_TYPE_LAST: break; case VIR_VIRTUALPORT_8021QBG: - + rc = doPortProfileOp8021Qbg(macvtap_ifname, virtPort, vf, + DISASSOCIATE); break; case VIR_VIRTUALPORT_8021QBH: - + rc = doPortProfileOp8021Qbh(physfndev, virtPort, vf, + NULL, NULL, + DISASSOCIATE); break; } +err_exit: return rc; } + +#endif

2 1

[libvirt] [PATCH v9] vepa: parsing for 802.1Qb{g|h} XML
by Stefan Berger 24 May '10

24 May '10

Below is David Alan's original patch with lots of changes. In particular, it now parses the following two XML descriptions, one for 802.1Qbg and 802.1Qbh and stored the data internally. The actual triggering of the switch setup protocol has not been implemented here but the relevant code to do that should go into the functions associatePortProfileId() and disassociatePortProfileId(). <interface type='direct'> <source dev='eth0.100' mode='vepa'/> <model type='virtio'/> <virtualport type='802.1Qbg'> <parameters managerid='12' typeid='0x123456' typeidversion='1' instanceid='fa9b7fff-b0a0-4893-8e0e-beef4ff18f8f'/> </virtualport> <filterref filter='clean-traffic'/> </interface> <interface type='direct'> <source dev='eth0.100' mode='vepa'/> <model type='virtio'/> <virtualport type='802.1Qbh'> <parameters profileid='my_profile'/> </virtualport> </interface> I'd suggest to use this patch as a base for triggering the setup protocol with the 802.1Qb{g|h} switch. V9: -Addressing Daniel Berrange's comments: - removing macvtap.h's dependency on domain_conf.h by moving the virVirtualPortProfileDef structure into macvtap.h and not passing virtDomainNetDefPtr to any functions in macvtap.c Changes from V7 to V8: - Addressed most of Chris Wright's comments: - indicating error in case virtualport XML node cannot be parsed properly - parsing hex and decimal numbers using virStrToLong_ui() with parameter '0' for base - tgifname (target interface name) variable wasn't necessary to pass to openMacvtapTap function anymore - assigning the virtual port data structure to the virDomainNetDef only if it was previously parsed -> still leaving possibility to start a domain with macvtap but no profile Changes from V6 to V7: - make sure that the error code returned by openMacvtapTap() is a negative number in case the associatePortProfileId() function failed. Changes from V5 to V6: - renaming vsi in the XML to virtualport - replace all occurrences of vsi in the source as well Changes from V4 to V5: - removing mode and MAC address parameters from the functions that will communicate with the hareware diretctly or indirectly Changes from V3 to V4: - moving the associate and disassociate functions to the end of the file for subsequent patches to easier make them generally available for export - passing the macvtap interface name rather than the link device since this otherwise gives funny side effects when using netlink messages where IFLA_IFNAME and IFLA_ADDRESS are specified and the link dev all of a sudden gets the MAC address of the macvtap interface. - Removing rc = -1 error indications in the case of 802.1Qbg|h setup in case we wanted to use hook scripts for the setup and so the setup doesn't fail here. Changes from V2 to V3: - if instance ID UUID is not supplied it will automatically be generated - adapted schema to make instance ID UUID optional - added test case Some of the changes from V1 to V2: - parser and XML generator have been separated into their own functions so they can be re-used elsewhere (passthrough case for example) - Adapted XML parser and generator support the above shown type (802.1Qbg, 802.1Qbh). - Adapted schema to above XML - Adapted test XML to above XML - Passing through the VM's UUID which seems to be necessary for 802.1Qbh -- sorry no host UUID - adding virtual function ID to association function, in case it's necessary to use (for SR-IOV) Signed-off-by: Stefan Berger <stefanb(a)us.ibm.com> >From a945107f047c7cd71f9c1b74fd74c47d8cdc3670 Mon Sep 17 00:00:00 2001 From: David Allan <dallan(a)redhat.com> Date: Fri, 12 Mar 2010 13:25:04 -0500 Subject: [PATCH 1/1] POC of port profile id support * Modified schema per DanPB's feedback * Added test for modified schema --- docs/schemas/domain.rng | 69 +++++++++++ src/conf/domain_conf.c | 202 +++++++++++++++++++++++++++++++++ src/conf/domain_conf.h | 2 src/qemu/qemu_conf.c | 21 +-- src/qemu/qemu_conf.h | 5 src/qemu/qemu_driver.c | 19 +-- src/util/macvtap.c | 137 ++++++++++++++++++++-- src/util/macvtap.h | 45 ++++++- tests/domainschemadata/portprofile.xml | 36 +++++ 9 files changed, 498 insertions(+), 38 deletions(-) create mode 100644 tests/domainschemadata/portprofile.xml Index: libvirt-acl/docs/schemas/domain.rng =================================================================== --- libvirt-acl.orig/docs/schemas/domain.rng +++ libvirt-acl/docs/schemas/domain.rng @@ -817,6 +817,9 @@ </optional> <empty/> </element> + <optional> + <ref name="virtualPortProfile"/> + </optional> <ref name="interface-options"/> </interleave> </group> @@ -902,6 +905,45 @@ </optional> </interleave> </define> + <define name="virtualPortProfile"> + <choice> + <group> + <element name="virtualport"> + <attribute name="type"> + <value>802.1Qbg</value> + </attribute> + <element name="parameters"> + <attribute name="managerid"> + <ref name="uint8range"/> + </attribute> + <attribute name="typeid"> + <ref name="uint24range"/> + </attribute> + <attribute name="typeidversion"> + <ref name="uint8range"/> + </attribute> + <optional> + <attribute name="instanceid"> + <ref name="UUID"/> + </attribute> + </optional> + </element> + </element> + </group> + <group> + <element name="virtualport"> + <attribute name="type"> + <value>802.1Qbh</value> + </attribute> + <element name="parameters"> + <attribute name="profileid"> + <ref name="virtualPortProfileID"/> + </attribute> + </element> + </element> + </group> + </choice> + </define>  @@ -1769,4 +1811,31 @@ <param name="pattern">[a-zA-Z0-9_\.:]+</param> </data> </define> + <define name="uint8range"> + <choice> + <data type="string"> + <param name="pattern">0x[0-9a-fA-F]{1,2}</param> + </data> + <data type="int"> + <param name="minInclusive">0</param> + <param name="maxInclusive">255</param> + </data> + </choice> + </define> + <define name="uint24range"> + <choice> + <data type="string"> + <param name="pattern">0x[0-9a-fA-F]{1,6}</param> + </data> + <data type="int"> + <param name="minInclusive">0</param> + <param name="maxInclusive">16777215</param> + </data> + </choice> + </define> + <define name="virtualPortProfileID"> + <data type="string"> + <param name="maxLength">39</param> + </data> + </define> </grammar> Index: libvirt-acl/src/conf/domain_conf.c =================================================================== --- libvirt-acl.orig/src/conf/domain_conf.c +++ libvirt-acl/src/conf/domain_conf.c @@ -242,6 +242,11 @@ VIR_ENUM_IMPL(virDomainNetdevMacvtap, VI "private", "bridge") +VIR_ENUM_IMPL(virVirtualPort, VIR_VIRTUALPORT_TYPE_LAST, + "none", + "802.1Qbg", + "802.1Qbh") + VIR_ENUM_IMPL(virDomainClockOffset, VIR_DOMAIN_CLOCK_OFFSET_LAST, "utc", "localtime", @@ -1807,6 +1812,190 @@ cleanup: } +static int +virVirtualPortProfileDefParseXML(xmlNodePtr node, + virVirtualPortProfileDefPtr virtPort) +{ + int ret = -1; + char *virtPortType; + char *virtPortManagerID = NULL; + char *virtPortTypeID = NULL; + char *virtPortTypeIDVersion = NULL; + char *virtPortInstanceID = NULL; + char *virtPortProfileID = NULL; + xmlNodePtr cur = node->children; + const char *msg = NULL; + + virtPortType = virXMLPropString(node, "type"); + if (!virtPortType) + return -1; + + while (cur != NULL) { + if (xmlStrEqual(cur->name, BAD_CAST "parameters")) { + + virtPortManagerID = virXMLPropString(cur, "managerid"); + virtPortTypeID = virXMLPropString(cur, "typeid"); + virtPortTypeIDVersion = virXMLPropString(cur, "typeidversion"); + virtPortInstanceID = virXMLPropString(cur, "instanceid"); + virtPortProfileID = virXMLPropString(cur, "profileid"); + + break; + } + + cur = cur->next; + } + + virtPort->virtPortType = VIR_VIRTUALPORT_NONE; + + switch (virVirtualPortTypeFromString(virtPortType)) { + + case VIR_VIRTUALPORT_8021QBG: + if (virtPortManagerID != NULL && virtPortTypeID != NULL && + virtPortTypeIDVersion != NULL) { + unsigned int val; + + if (virStrToLong_ui(virtPortManagerID, NULL, 0, &val)) { + msg = _("cannot parse value of managerid parameter"); + goto err_exit; + } + + if (val > 0xff) { + msg = _("value of managerid out of range"); + goto err_exit; + } + + virtPort->u.virtPort8021Qbg.managerID = (uint8_t)val; + + if (virStrToLong_ui(virtPortTypeID, NULL, 0, &val)) { + msg = _("cannot parse value of typeid parameter"); + goto err_exit; + } + + if (val > 0xffffff) { + msg = _("value for typeid out of range"); + goto err_exit; + } + + virtPort->u.virtPort8021Qbg.typeID = (uint32_t)val; + + if (virStrToLong_ui(virtPortTypeIDVersion, NULL, 0, &val)) { + msg = _("cannot parse value of typeidversion parameter"); + goto err_exit; + } + + if (val > 0xff) { + msg = _("value of typeidversion out of range"); + goto err_exit; + } + + virtPort->u.virtPort8021Qbg.typeIDVersion = (uint8_t)val; + + if (virtPortInstanceID != NULL) { + if (virUUIDParse(virtPortInstanceID, + virtPort->u.virtPort8021Qbg.instanceID)) { + msg = _("cannot parse instanceid parameter as a uuid"); + goto err_exit; + } + } else { + if (virUUIDGenerate(virtPort->u.virtPort8021Qbg.instanceID)) { + msg = _("cannot generate a random uuid for instanceid"); + goto err_exit; + } + } + + virtPort->virtPortType = VIR_VIRTUALPORT_8021QBG; + ret = 0; + } else { + msg = _("a parameter is missing for 802.1Qbg description"); + goto err_exit; + } + break; + + case VIR_VIRTUALPORT_8021QBH: + if (virtPortProfileID != NULL) { + if (virStrcpyStatic(virtPort->u.virtPort8021Qbh.profileID, + virtPortProfileID) != NULL) { + virtPort->virtPortType = VIR_VIRTUALPORT_8021QBH; + ret = 0; + } else { + msg = _("profileid parameter too long"); + goto err_exit; + } + } else { + msg = _("profileid parameter is missing for 802.1Qbh descripion"); + goto err_exit; + } + break; + + + default: + case VIR_VIRTUALPORT_NONE: + case VIR_VIRTUALPORT_TYPE_LAST: + msg = _("unknown virtualport type"); + goto err_exit; + break; + } + +err_exit: + + if (msg) + virDomainReportError(VIR_ERR_INTERNAL_ERROR, "%s", msg); + + VIR_FREE(virtPortManagerID); + VIR_FREE(virtPortTypeID); + VIR_FREE(virtPortTypeIDVersion); + VIR_FREE(virtPortInstanceID); + VIR_FREE(virtPortProfileID); + VIR_FREE(virtPortType); + + return ret; +} + + +static void +virVirtualPortProfileFormat(virBufferPtr buf, + virVirtualPortProfileDefPtr virtPort, + const char *indent) +{ + char uuidstr[VIR_UUID_STRING_BUFLEN]; + + if (virtPort->virtPortType == VIR_VIRTUALPORT_NONE) + return; + + virBufferVSprintf(buf, "%s<virtualport type='%s'>\n", + indent, + virVirtualPortTypeToString(virtPort->virtPortType)); + + switch (virtPort->virtPortType) { + case VIR_VIRTUALPORT_NONE: + case VIR_VIRTUALPORT_TYPE_LAST: + break; + + case VIR_VIRTUALPORT_8021QBG: + virUUIDFormat(virtPort->u.virtPort8021Qbg.instanceID, + uuidstr); + virBufferVSprintf(buf, + "%s <parameters managerid='%d' typeid='%d' " + "typeidversion='%d' instanceid='%s'/>\n", + indent, + virtPort->u.virtPort8021Qbg.managerID, + virtPort->u.virtPort8021Qbg.typeID, + virtPort->u.virtPort8021Qbg.typeIDVersion, + uuidstr); + break; + + case VIR_VIRTUALPORT_8021QBH: + virBufferVSprintf(buf, + "%s <parameters profileid='%s'/>\n", + indent, + virtPort->u.virtPort8021Qbh.profileID); + break; + } + + virBufferVSprintf(buf, "%s</virtualport>\n", indent); +} + + /* Parse the XML definition for a network interface * @param node XML nodeset to parse for net definition * @return 0 on success, -1 on failure @@ -1832,6 +2021,8 @@ virDomainNetDefParseXML(virCapsPtr caps, char *devaddr = NULL; char *mode = NULL; virNWFilterHashTablePtr filterparams = NULL; + virVirtualPortProfileDef virtPort; + bool virtPortParsed = false; if (VIR_ALLOC(def) < 0) { virReportOOMError(); @@ -1873,6 +2064,12 @@ virDomainNetDefParseXML(virCapsPtr caps, xmlStrEqual(cur->name, BAD_CAST "source")) { dev = virXMLPropString(cur, "dev"); mode = virXMLPropString(cur, "mode"); + } else if ((virtPortParsed == false) && + (def->type == VIR_DOMAIN_NET_TYPE_DIRECT) && + xmlStrEqual(cur->name, BAD_CAST "virtualport")) { + if (virVirtualPortProfileDefParseXML(cur, &virtPort)) + goto error; + virtPortParsed = true; } else if ((network == NULL) && ((def->type == VIR_DOMAIN_NET_TYPE_SERVER) || (def->type == VIR_DOMAIN_NET_TYPE_CLIENT) || @@ -2048,6 +2245,9 @@ virDomainNetDefParseXML(virCapsPtr caps, } else def->data.direct.mode = VIR_DOMAIN_NETDEV_MACVTAP_MODE_VEPA; + if (virtPortParsed) + def->data.direct.virtPortProfile = virtPort; + def->data.direct.linkdev = dev; dev = NULL; @@ -5140,6 +5340,8 @@ virDomainNetDefFormat(virBufferPtr buf, virBufferVSprintf(buf, " mode='%s'", virDomainNetdevMacvtapTypeToString(def->data.direct.mode)); virBufferAddLit(buf, "/>\n"); + virVirtualPortProfileFormat(buf, &def->data.direct.virtPortProfile, + " "); break; case VIR_DOMAIN_NET_TYPE_USER: Index: libvirt-acl/src/conf/domain_conf.h =================================================================== --- libvirt-acl.orig/src/conf/domain_conf.h +++ libvirt-acl/src/conf/domain_conf.h @@ -38,6 +38,7 @@ # include "network.h" # include "nwfilter_params.h" # include "nwfilter_conf.h" +# include "macvtap.h" /* Private component of virDomainXMLFlags */ typedef enum { @@ -290,6 +291,7 @@ struct _virDomainNetDef { struct { char *linkdev; int mode; + virVirtualPortProfileDef virtPortProfile; } direct; } data; char *ifname; Index: libvirt-acl/src/util/macvtap.c =================================================================== --- libvirt-acl.orig/src/util/macvtap.c +++ libvirt-acl/src/util/macvtap.c @@ -43,6 +43,7 @@ # include "util.h" # include "memory.h" +# include "logging.h" # include "macvtap.h" # include "interface.h" # include "conf/domain_conf.h" @@ -57,6 +58,16 @@ # define MACVTAP_NAME_PREFIX "macvtap" # define MACVTAP_NAME_PATTERN "macvtap%d" + +static int associatePortProfileId(const char *macvtap_ifname, + const virVirtualPortProfileDefPtr virtPort, + int vf, + const unsigned char *vmuuid); + +static int disassociatePortProfileId(const char *macvtap_ifname, + const virVirtualPortProfileDefPtr virtPort); + + static int nlOpen(void) { int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE); @@ -577,8 +588,10 @@ configMacvtapTap(int tapfd, int vnet_hdr * be NULL if this function is supposed to choose a name * @macaddress: The MAC address for the macvtap device * @linkdev: The interface name of the NIC to connect to the external bridge - * @mode_str: String describing the mode. Valid are 'bridge', 'vepa' and - * 'private'. + * @mode: int describing the mode for 'bridge', 'vepa' or 'private'. + * @vnet_hdr: 1 to enable IFF_VNET_HDR, 0 to disable it + * @vmuuid: The UUID of the VM the macvtap belongs to + * @virtPortProfile: pointer to object holding the virtual port profile data * @res_ifname: Pointer to a string pointer where the actual name of the * interface will be stored into if everything succeeded. It is up * to the caller to free the string. @@ -592,8 +605,10 @@ openMacvtapTap(const char *tgifname, const unsigned char *macaddress, const char *linkdev, int mode, - char **res_ifname, - int vnet_hdr) + int vnet_hdr, + const unsigned char *vmuuid, + virVirtualPortProfileDefPtr virtPortProfile, + char **res_ifname) { const char *type = "macvtap"; int c, rc; @@ -639,6 +654,14 @@ create_name: cr_ifname = ifname; } + if (associatePortProfileId(cr_ifname, + virtPortProfile, + -1, + vmuuid) != 0) { + rc = -1; + goto link_del_exit; + } + rc = ifaceUp(cr_ifname); if (rc != 0) { virReportSystemError(errno, @@ -647,7 +670,7 @@ create_name: "MAC address"), cr_ifname); rc = -1; - goto link_del_exit; + goto disassociate_exit; } rc = openTap(cr_ifname, 10); @@ -656,14 +679,18 @@ create_name: if (configMacvtapTap(rc, vnet_hdr) < 0) { close(rc); rc = -1; - goto link_del_exit; + goto disassociate_exit; } *res_ifname = strdup(cr_ifname); } else - goto link_del_exit; + goto disassociate_exit; return rc; +disassociate_exit: + disassociatePortProfileId(cr_ifname, + virtPortProfile); + link_del_exit: link_del(cr_ifname); @@ -674,13 +701,103 @@ link_del_exit: /** * delMacvtap: * @ifname : The name of the macvtap interface + * @virtPortProfile: pointer to object holding the virtual port profile data * - * Delete an interface given its name. + * Delete an interface given its name. Disassociate + * it with the switch if port profile parameters + * were provided. */ void -delMacvtap(const char *ifname) +delMacvtap(const char *ifname, + virVirtualPortProfileDefPtr virtPortProfile) { - link_del(ifname); + if (ifname) { + disassociatePortProfileId(ifname, + virtPortProfile); + link_del(ifname); + } } #endif + + +/** + * associatePortProfile + * + * @macvtap_ifname: The name of the macvtap device + * @virtPort: pointer to the object holding port profile parameters + * @vf: virtual function number, -1 if to be ignored + * @vmuuid : the UUID of the virtual machine + * + * Associate a port on a swtich with a profile. This function + * may notify a kernel driver or an external daemon to run + * the setup protocol. If profile parameters were not supplied + * by the user, then this function returns without doing + * anything. + * + * Returns 0 in case of success, != 0 otherwise with error + * having been reported. + */ +static int +associatePortProfileId(const char *macvtap_ifname, + const virVirtualPortProfileDefPtr virtPort, + int vf, + const unsigned char *vmuuid) +{ + int rc = 0; + VIR_DEBUG("Associating port profile '%p' on link device '%s'", + virtPort, macvtap_ifname); + (void)vf; + (void)vmuuid; + + switch (virtPort->virtPortType) { + case VIR_VIRTUALPORT_NONE: + case VIR_VIRTUALPORT_TYPE_LAST: + break; + + case VIR_VIRTUALPORT_8021QBG: + + break; + + case VIR_VIRTUALPORT_8021QBH: + + break; + } + + return rc; +} + + +/** + * disassociatePortProfile + * + * @macvtap_ifname: The name of the macvtap device + * @virtPort: point to object holding port profile parameters + * + * Returns 0 in case of success, != 0 otherwise with error + * having been reported. + */ +static int +disassociatePortProfileId(const char *macvtap_ifname, + const virVirtualPortProfileDefPtr virtPort) +{ + int rc = 0; + VIR_DEBUG("Disassociating port profile id '%p' on link device '%s' ", + virtPort, macvtap_ifname); + + switch (virtPort->virtPortType) { + case VIR_VIRTUALPORT_NONE: + case VIR_VIRTUALPORT_TYPE_LAST: + break; + + case VIR_VIRTUALPORT_8021QBG: + + break; + + case VIR_VIRTUALPORT_8021QBH: + + break; + } + + return rc; +} Index: libvirt-acl/src/util/macvtap.h =================================================================== --- libvirt-acl.orig/src/util/macvtap.h +++ libvirt-acl/src/util/macvtap.h @@ -24,6 +24,40 @@ # include <config.h> + +enum virVirtualPortType { + VIR_VIRTUALPORT_NONE, + VIR_VIRTUALPORT_8021QBG, + VIR_VIRTUALPORT_8021QBH, + + VIR_VIRTUALPORT_TYPE_LAST, +}; + +# ifdef IFLA_VF_PORT_PROFILE_MAX +# define LIBVIRT_IFLA_VF_PORT_PROFILE_MAX IFLA_VF_PORT_PROFILE_MAX +# else +# define LIBVIRT_IFLA_VF_PORT_PROFILE_MAX 40 +# endif + +/* profile data for macvtap (VEPA) */ +typedef struct _virVirtualPortProfileDef virVirtualPortProfileDef; +typedef virVirtualPortProfileDef *virVirtualPortProfileDefPtr; +struct _virVirtualPortProfileDef { + enum virVirtualPortType virtPortType; + union { + struct { + uint8_t managerID; + uint32_t typeID; // 24 bit valid + uint8_t typeIDVersion; + unsigned char instanceID[VIR_UUID_BUFLEN]; + } virtPort8021Qbg; + struct { + char profileID[LIBVIRT_IFLA_VF_PORT_PROFILE_MAX]; + } virtPort8021Qbh; + } u; +}; + + # if defined(WITH_MACVTAP) # include "internal.h" @@ -32,10 +66,13 @@ int openMacvtapTap(const char *ifname, const unsigned char *macaddress, const char *linkdev, int mode, - char **res_ifname, - int vnet_hdr); + int vnet_hdr, + const unsigned char *vmuuid, + virVirtualPortProfileDefPtr virtPortProfile, + char **res_ifname); -void delMacvtap(const char *ifname); +void delMacvtap(const char *ifname, + virVirtualPortProfileDefPtr virtPortProfile); # endif /* WITH_MACVTAP */ @@ -44,4 +81,6 @@ void delMacvtap(const char *ifname); # define MACVTAP_MODE_BRIDGE_STR "bridge" +VIR_ENUM_DECL(virVirtualPort) + #endif /* __UTIL_MACVTAP_H__ */ Index: libvirt-acl/tests/domainschemadata/portprofile.xml =================================================================== --- /dev/null +++ libvirt-acl/tests/domainschemadata/portprofile.xml @@ -0,0 +1,36 @@ +<domain type='lxc'> + <name>portprofile</name> + <uuid>00000000-0000-0000-0000-000000000000</uuid> + <memory>1048576</memory> + <os> + <type>exe</type> + <init>/sh</init> + </os> + <devices> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + <virtualport type='802.1Qbg'> + <parameters managerid='12' typeid='1193046' typeidversion='1' + instanceid='fa9b7fff-b0a0-4893-8e0e-beef4ff18f8f'/> + </virtualport> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + <virtualport type='802.1Qbg'> + <parameters managerid='12' typeid='1193046' typeidversion='1'/> + </virtualport> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + <virtualport type='802.1Qbh'> + <parameters profileid='my_profile'/> + </virtualport> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + </interface> + </devices> +</domain> Index: libvirt-acl/src/qemu/qemu_conf.h =================================================================== --- libvirt-acl.orig/src/qemu/qemu_conf.h +++ libvirt-acl/src/qemu/qemu_conf.h @@ -274,9 +274,8 @@ qemudOpenVhostNet(virDomainNetDefPtr net int qemudPhysIfaceConnect(virConnectPtr conn, struct qemud_driver *driver, virDomainNetDefPtr net, - char *linkdev, - int brmode, - unsigned long long qemuCmdFlags); + unsigned long long qemuCmdFlags, + const unsigned char *vmuuid); int qemudProbeMachineTypes (const char *binary, virCapsGuestMachinePtr **machines, Index: libvirt-acl/src/qemu/qemu_driver.c =================================================================== --- libvirt-acl.orig/src/qemu/qemu_driver.c +++ libvirt-acl/src/qemu/qemu_driver.c @@ -3708,10 +3708,9 @@ static void qemudShutdownVMDaemon(struct def = vm->def; for (i = 0; i < def->nnets; i++) { virDomainNetDefPtr net = def->nets[i]; - if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) { - if (net->ifname) - delMacvtap(net->ifname); - } + if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) + delMacvtap(net->ifname, + &net->data.direct.virtPortProfile); } #endif @@ -7467,9 +7466,8 @@ static int qemudDomainAttachNetDevice(vi } if ((tapfd = qemudPhysIfaceConnect(conn, driver, net, - net->data.direct.linkdev, - net->data.direct.mode, - qemuCmdFlags)) < 0) + qemuCmdFlags, + vm->def->uuid)) < 0) return -1; } @@ -8512,10 +8510,9 @@ qemudDomainDetachNetDevice(struct qemud_ virNWFilterTearNWFilter(detach); #if WITH_MACVTAP - if (detach->type == VIR_DOMAIN_NET_TYPE_DIRECT) { - if (detach->ifname) - delMacvtap(detach->ifname); - } + if (detach->type == VIR_DOMAIN_NET_TYPE_DIRECT) + delMacvtap(detach->ifname, + &detach->data.direct.virtPortProfile); #endif if ((driver->macFilter) && (detach->ifname != NULL)) { Index: libvirt-acl/src/qemu/qemu_conf.c =================================================================== --- libvirt-acl.orig/src/qemu/qemu_conf.c +++ libvirt-acl/src/qemu/qemu_conf.c @@ -1470,9 +1470,8 @@ int qemudPhysIfaceConnect(virConnectPtr conn, struct qemud_driver *driver, virDomainNetDefPtr net, - char *linkdev, - int brmode, - unsigned long long qemuCmdFlags) + unsigned long long qemuCmdFlags, + const unsigned char *vmuuid) { int rc; #if WITH_MACVTAP @@ -1484,8 +1483,9 @@ qemudPhysIfaceConnect(virConnectPtr conn net->model && STREQ(net->model, "virtio")) vnet_hdr = 1; - rc = openMacvtapTap(net->ifname, net->mac, linkdev, brmode, - &res_ifname, vnet_hdr); + rc = openMacvtapTap(net->ifname, net->mac, net->data.direct.linkdev, + net->data.direct.mode, vnet_hdr, vmuuid, + &net->data.direct.virtPortProfile, &res_ifname); if (rc >= 0) { VIR_FREE(net->ifname); net->ifname = res_ifname; @@ -1505,17 +1505,17 @@ qemudPhysIfaceConnect(virConnectPtr conn if (err) { close(rc); rc = -1; - delMacvtap(net->ifname); + delMacvtap(net->ifname, + &net->data.direct.virtPortProfile); } } } #else (void)conn; (void)net; - (void)linkdev; - (void)brmode; (void)qemuCmdFlags; (void)driver; + (void)vmuuid; qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("No support for macvtap device")); rc = -1; @@ -4135,9 +4135,8 @@ int qemudBuildCommandLine(virConnectPtr goto no_memory; } else if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) { int tapfd = qemudPhysIfaceConnect(conn, driver, net, - net->data.direct.linkdev, - net->data.direct.mode, - qemuCmdFlags); + qemuCmdFlags, + def->uuid); if (tapfd < 0) goto error;

1 0

[libvirt] [PATCH v2] Fix up basic migration.
by Chris Lalancette 24 May '10

24 May '10

Basic live migration was broken by the commit that added non-shared block support in two ways: 1) It added a virCheckFlags() to doNativeMigrate(). Besides the fact that typical usage of virCheckFlags() is in driver entry points, and doNativeMigrate() is not an entry point, it was missing important flags like VIR_MIGRATE_LIVE. Move the virCheckFlags to the top-level qemuDomainMigratePrepare2 and friends. Unfortunately this required adding a new variant of the virCheckFlags() macro that could handle unsigned long arguments, but it should be easily extendable from here. 2) It also added a memory leak in qemuMonitorTextMigrate() by not freeing the memory used by virBufferContentAndReset(). This is fixed by storing the pointer in a temporary variable and freeing it at the end. With this patch in place, normal live migration works again. Signed-off-by: Chris Lalancette <clalance(a)redhat.com> --- src/esx/esx_driver.c | 18 +++++----- src/internal.h | 10 +++++- src/nwfilter/nwfilter_driver.c | 2 +- src/qemu/qemu_driver.c | 64 +++++++++++++++++++++++++++------------ src/qemu/qemu_monitor_text.c | 10 ++++-- src/storage/storage_driver.c | 2 +- src/vbox/vbox_tmpl.c | 24 +++++++------- src/xen/xend_internal.c | 6 ++-- 8 files changed, 85 insertions(+), 51 deletions(-) diff --git a/src/esx/esx_driver.c b/src/esx/esx_driver.c index 7c9c50e..7a3609b 100644 --- a/src/esx/esx_driver.c +++ b/src/esx/esx_driver.c @@ -3310,7 +3310,7 @@ esxDomainSnapshotCreateXML(virDomainPtr domain, const char *xmlDesc, esxVI_TaskInfoState taskInfoState; virDomainSnapshotPtr snapshot = NULL; - virCheckFlags(0, NULL); + virCheckFlagsUI(0, NULL); if (esxVI_EnsureSession(priv->host) < 0) { goto failure; @@ -3383,7 +3383,7 @@ esxDomainSnapshotDumpXML(virDomainSnapshotPtr snapshot, char uuid_string[VIR_UUID_STRING_BUFLEN] = ""; char *xml = NULL; - virCheckFlags(0, NULL); + virCheckFlagsUI(0, NULL); memset(&def, 0, sizeof (virDomainSnapshotDef)); @@ -3435,7 +3435,7 @@ esxDomainSnapshotNum(virDomainPtr domain, unsigned int flags) esxPrivate *priv = domain->conn->privateData; esxVI_VirtualMachineSnapshotTree *rootSnapshotTreeList = NULL; - virCheckFlags(0, -1); + virCheckFlagsUI(0, -1); if (esxVI_EnsureSession(priv->host) < 0) { goto failure; @@ -3469,7 +3469,7 @@ esxDomainSnapshotListNames(virDomainPtr domain, char **names, int nameslen, esxPrivate *priv = domain->conn->privateData; esxVI_VirtualMachineSnapshotTree *rootSnapshotTreeList = NULL; - virCheckFlags(0, -1); + virCheckFlagsUI(0, -1); if (names == NULL || nameslen < 0) { ESX_ERROR(VIR_ERR_INVALID_ARG, "%s", _("Invalid argument")); @@ -3514,7 +3514,7 @@ esxDomainSnapshotLookupByName(virDomainPtr domain, const char *name, esxVI_VirtualMachineSnapshotTree *snapshotTreeParent = NULL; virDomainSnapshotPtr snapshot = NULL; - virCheckFlags(0, NULL); + virCheckFlagsUI(0, NULL); if (esxVI_EnsureSession(priv->host) < 0) { goto cleanup; @@ -3545,7 +3545,7 @@ esxDomainHasCurrentSnapshot(virDomainPtr domain, unsigned int flags) esxPrivate *priv = domain->conn->privateData; esxVI_VirtualMachineSnapshotTree *currentSnapshotTree = NULL; - virCheckFlags(0, -1); + virCheckFlagsUI(0, -1); if (esxVI_EnsureSession(priv->host) < 0) { goto failure; @@ -3581,7 +3581,7 @@ esxDomainSnapshotCurrent(virDomainPtr domain, unsigned int flags) esxPrivate *priv = domain->conn->privateData; esxVI_VirtualMachineSnapshotTree *currentSnapshotTree = NULL; - virCheckFlags(0, NULL); + virCheckFlagsUI(0, NULL); if (esxVI_EnsureSession(priv->host) < 0) { goto cleanup; @@ -3614,7 +3614,7 @@ esxDomainRevertToSnapshot(virDomainSnapshotPtr snapshot, unsigned int flags) esxVI_ManagedObjectReference *task = NULL; esxVI_TaskInfoState taskInfoState; - virCheckFlags(0, -1); + virCheckFlagsUI(0, -1); if (esxVI_EnsureSession(priv->host) < 0) { goto failure; @@ -3667,7 +3667,7 @@ esxDomainSnapshotDelete(virDomainSnapshotPtr snapshot, unsigned int flags) esxVI_ManagedObjectReference *task = NULL; esxVI_TaskInfoState taskInfoState; - virCheckFlags(VIR_DOMAIN_SNAPSHOT_DELETE_CHILDREN, -1); + virCheckFlagsUI(VIR_DOMAIN_SNAPSHOT_DELETE_CHILDREN, -1); if (esxVI_EnsureSession(priv->host) < 0) { goto failure; diff --git a/src/internal.h b/src/internal.h index c3c5311..d39a35e 100644 --- a/src/internal.h +++ b/src/internal.h @@ -210,7 +210,7 @@ * Returns nothing. Exits the caller function if unsupported flags were * passed to it. */ -# define virCheckFlags(supported, retval) \ +# define virCheckFlags(supported, retval, format) \ do { \ if ((flags & ~(supported))) { \ virReportErrorHelper(NULL, \ @@ -219,10 +219,16 @@ __FILE__, \ __FUNCTION__, \ __LINE__, \ - _("%s: unsupported flags (0x%x)"), \ + _("%s: unsupported flags (0x" #format ")"),\ __FUNCTION__, flags & ~(supported)); \ return retval; \ } \ } while (0) +# define virCheckFlagsUI(supported, retval) \ + virCheckFlags(supported, retval, %x) + +# define virCheckFlagsUL(supported, retval) \ + virCheckFlags(supported, retval, %lx) + #endif /* __VIR_INTERNAL_H__ */ diff --git a/src/nwfilter/nwfilter_driver.c b/src/nwfilter/nwfilter_driver.c index 3ded2be..b356e95 100644 --- a/src/nwfilter/nwfilter_driver.c +++ b/src/nwfilter/nwfilter_driver.c @@ -389,7 +389,7 @@ nwfilterDumpXML(virNWFilterPtr obj, virNWFilterPoolObjPtr pool; char *ret = NULL; - virCheckFlags(0, NULL); + virCheckFlagsUI(0, NULL); nwfilterDriverLock(driver); pool = virNWFilterPoolObjFindByUUID(&driver->pools, obj->uuid); diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 51ee320..6e93755 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -5252,7 +5252,7 @@ qemuDomainManagedSave(virDomainPtr dom, unsigned int flags) int ret = -1; int compressed; - virCheckFlags(0, -1); + virCheckFlagsUI(0, -1); qemuDriverLock(driver); vm = virDomainFindByUUID(&driver->domains, dom->uuid); @@ -5313,7 +5313,7 @@ qemuDomainHasManagedSaveImage(virDomainPtr dom, unsigned int flags) int ret = -1; char *name = NULL; - virCheckFlags(0, -1); + virCheckFlagsUI(0, -1); qemuDriverLock(driver); vm = virDomainFindByUUID(&driver->domains, dom->uuid); @@ -5347,7 +5347,7 @@ qemuDomainManagedSaveRemove(virDomainPtr dom, unsigned int flags) int ret = -1; char *name = NULL; - virCheckFlags(0, -1); + virCheckFlagsUI(0, -1); qemuDriverLock(driver); vm = virDomainFindByUUID(&driver->domains, dom->uuid); @@ -8077,9 +8077,9 @@ static int qemuDomainUpdateDeviceFlags(virDomainPtr dom, virCgroupPtr cgroup = NULL; int ret = -1; - virCheckFlags(VIR_DOMAIN_DEVICE_MODIFY_CURRENT | - VIR_DOMAIN_DEVICE_MODIFY_LIVE | - VIR_DOMAIN_DEVICE_MODIFY_CONFIG, -1); + virCheckFlagsUI(VIR_DOMAIN_DEVICE_MODIFY_CURRENT | + VIR_DOMAIN_DEVICE_MODIFY_LIVE | + VIR_DOMAIN_DEVICE_MODIFY_CONFIG, -1); if (flags & VIR_DOMAIN_DEVICE_MODIFY_CONFIG) { qemuReportError(VIR_ERR_OPERATION_INVALID, @@ -9457,7 +9457,7 @@ static int qemuDomainGetBlockInfo(virDomainPtr dom, struct stat sb; int i; - virCheckFlags(0, -1); + virCheckFlagsUI(0, -1); qemuDriverLock(driver); vm = virDomainFindByUUID(&driver->domains, dom->uuid); @@ -10149,6 +10149,15 @@ qemudDomainMigratePrepare2 (virConnectPtr dconn, int ret = -1; int internalret; + virCheckFlagsUL(VIR_MIGRATE_LIVE | + VIR_MIGRATE_PEER2PEER | + VIR_MIGRATE_TUNNELLED | + VIR_MIGRATE_PERSIST_DEST | + VIR_MIGRATE_UNDEFINE_SOURCE | + VIR_MIGRATE_PAUSED | + VIR_MIGRATE_NON_SHARED_DISK | + VIR_MIGRATE_NON_SHARED_INC, -1); + *uri_out = NULL; qemuDriverLock(driver); @@ -10330,9 +10339,6 @@ static int doNativeMigrate(struct qemud_driver *driver, qemuDomainObjPrivatePtr priv = vm->privateData; unsigned int background_flags = 0; - virCheckFlags(VIR_MIGRATE_NON_SHARED_DISK | VIR_MIGRATE_NON_SHARED_INC, - -1); - /* Issue the migrate command. */ if (STRPREFIX(uri, "tcp:") && !STRPREFIX(uri, "tcp://")) { /* HACK: source host generates bogus URIs, so fix them up */ @@ -10753,6 +10759,15 @@ qemudDomainMigratePerform (virDomainPtr dom, int resume = 0; qemuDomainObjPrivatePtr priv; + virCheckFlagsUL(VIR_MIGRATE_LIVE | + VIR_MIGRATE_PEER2PEER | + VIR_MIGRATE_TUNNELLED | + VIR_MIGRATE_PERSIST_DEST | + VIR_MIGRATE_UNDEFINE_SOURCE | + VIR_MIGRATE_PAUSED | + VIR_MIGRATE_NON_SHARED_DISK | + VIR_MIGRATE_NON_SHARED_INC, -1); + qemuDriverLock(driver); vm = virDomainFindByUUID(&driver->domains, dom->uuid); if (!vm) { @@ -10856,6 +10871,15 @@ qemudDomainMigrateFinish2 (virConnectPtr dconn, virErrorPtr orig_err; int newVM = 1; + virCheckFlagsUL(VIR_MIGRATE_LIVE | + VIR_MIGRATE_PEER2PEER | + VIR_MIGRATE_TUNNELLED | + VIR_MIGRATE_PERSIST_DEST | + VIR_MIGRATE_UNDEFINE_SOURCE | + VIR_MIGRATE_PAUSED | + VIR_MIGRATE_NON_SHARED_DISK | + VIR_MIGRATE_NON_SHARED_INC, NULL); + /* Migration failed. Save the current error so nothing squashes it */ orig_err = virSaveLastError(); @@ -11224,7 +11248,7 @@ qemuDomainMigrateSetMaxDowntime(virDomainPtr dom, qemuDomainObjPrivatePtr priv; int ret = -1; - virCheckFlags(0, -1); + virCheckFlagsUI(0, -1); qemuDriverLock(driver); vm = virDomainFindByUUID(&driver->domains, dom->uuid); @@ -11394,7 +11418,7 @@ static virDomainSnapshotPtr qemuDomainSnapshotCreateXML(virDomainPtr domain, const char *qemuimgarg[] = { NULL, "snapshot", "-c", NULL, NULL, NULL }; int i; - virCheckFlags(0, NULL); + virCheckFlagsUI(0, NULL); qemuDriverLock(driver); virUUIDFormat(domain->uuid, uuidstr); @@ -11514,7 +11538,7 @@ static int qemuDomainSnapshotListNames(virDomainPtr domain, char **names, virDomainObjPtr vm = NULL; int n = -1; - virCheckFlags(0, -1); + virCheckFlagsUI(0, -1); qemuDriverLock(driver); vm = virDomainFindByUUID(&driver->domains, domain->uuid); @@ -11542,7 +11566,7 @@ static int qemuDomainSnapshotNum(virDomainPtr domain, virDomainObjPtr vm = NULL; int n = -1; - virCheckFlags(0, -1); + virCheckFlagsUI(0, -1); qemuDriverLock(driver); vm = virDomainFindByUUID(&driver->domains, domain->uuid); @@ -11572,7 +11596,7 @@ static virDomainSnapshotPtr qemuDomainSnapshotLookupByName(virDomainPtr domain, virDomainSnapshotObjPtr snap = NULL; virDomainSnapshotPtr snapshot = NULL; - virCheckFlags(0, NULL); + virCheckFlagsUI(0, NULL); qemuDriverLock(driver); vm = virDomainFindByUUID(&driver->domains, domain->uuid); @@ -11607,7 +11631,7 @@ static int qemuDomainHasCurrentSnapshot(virDomainPtr domain, virDomainObjPtr vm; int ret = -1; - virCheckFlags(0, -1); + virCheckFlagsUI(0, -1); qemuDriverLock(driver); vm = virDomainFindByUUID(&driver->domains, domain->uuid); @@ -11635,7 +11659,7 @@ static virDomainSnapshotPtr qemuDomainSnapshotCurrent(virDomainPtr domain, virDomainObjPtr vm; virDomainSnapshotPtr snapshot = NULL; - virCheckFlags(0, NULL); + virCheckFlagsUI(0, NULL); qemuDriverLock(driver); vm = virDomainFindByUUID(&driver->domains, domain->uuid); @@ -11671,7 +11695,7 @@ static char *qemuDomainSnapshotDumpXML(virDomainSnapshotPtr snapshot, virDomainSnapshotObjPtr snap = NULL; char uuidstr[VIR_UUID_STRING_BUFLEN]; - virCheckFlags(0, NULL); + virCheckFlagsUI(0, NULL); qemuDriverLock(driver); virUUIDFormat(snapshot->domain->uuid, uuidstr); @@ -11711,7 +11735,7 @@ static int qemuDomainRevertToSnapshot(virDomainSnapshotPtr snapshot, qemuDomainObjPrivatePtr priv; int rc; - virCheckFlags(0, -1); + virCheckFlagsUI(0, -1); qemuDriverLock(driver); virUUIDFormat(snapshot->domain->uuid, uuidstr); @@ -11949,7 +11973,7 @@ static int qemuDomainSnapshotDelete(virDomainSnapshotPtr snapshot, char uuidstr[VIR_UUID_STRING_BUFLEN]; struct snap_remove rem; - virCheckFlags(VIR_DOMAIN_SNAPSHOT_DELETE_CHILDREN, -1); + virCheckFlagsUI(VIR_DOMAIN_SNAPSHOT_DELETE_CHILDREN, -1); qemuDriverLock(driver); virUUIDFormat(snapshot->domain->uuid, uuidstr); diff --git a/src/qemu/qemu_monitor_text.c b/src/qemu/qemu_monitor_text.c index 3df078a..66988aa 100644 --- a/src/qemu/qemu_monitor_text.c +++ b/src/qemu/qemu_monitor_text.c @@ -1134,6 +1134,7 @@ static int qemuMonitorTextMigrate(qemuMonitorPtr mon, int ret = -1; char *safedest = qemuMonitorEscapeArg(dest); virBuffer extra = VIR_BUFFER_INITIALIZER; + char *extrastr = NULL; if (!safedest) { virReportOOMError(); @@ -1149,10 +1150,12 @@ static int qemuMonitorTextMigrate(qemuMonitorPtr mon, if (virBufferError(&extra)) { virBufferFreeAndReset(&extra); virReportOOMError(); - free(safedest); - return -1; + goto cleanup; } - if (virAsprintf(&cmd, "migrate %s\"%s\"", virBufferContentAndReset(&extra), safedest) < 0) { + + extrastr = virBufferContentAndReset(&extra); + if (virAsprintf(&cmd, "migrate %s\"%s\"", extrastr ? extrastr : "", + safedest) < 0) { virReportOOMError(); goto cleanup; } @@ -1181,6 +1184,7 @@ static int qemuMonitorTextMigrate(qemuMonitorPtr mon, ret = 0; cleanup: + VIR_FREE(extrastr); VIR_FREE(safedest); VIR_FREE(info); VIR_FREE(cmd); diff --git a/src/storage/storage_driver.c b/src/storage/storage_driver.c index b148e39..27aaf86 100644 --- a/src/storage/storage_driver.c +++ b/src/storage/storage_driver.c @@ -1681,7 +1681,7 @@ storageVolumeWipe(virStorageVolPtr obj, virStorageVolDefPtr vol = NULL; int ret = -1; - virCheckFlags(0, -1); + virCheckFlagsUI(0, -1); storageDriverLock(driver); pool = virStoragePoolObjFindByName(&driver->pools, obj->pool); diff --git a/src/vbox/vbox_tmpl.c b/src/vbox/vbox_tmpl.c index 6a9a2bf..ce4d659 100644 --- a/src/vbox/vbox_tmpl.c +++ b/src/vbox/vbox_tmpl.c @@ -4877,9 +4877,9 @@ static int vboxDomainAttachDeviceFlags(virDomainPtr dom, const char *xml, static int vboxDomainUpdateDeviceFlags(virDomainPtr dom, const char *xml, unsigned int flags) { - virCheckFlags(VIR_DOMAIN_DEVICE_MODIFY_CURRENT | - VIR_DOMAIN_DEVICE_MODIFY_LIVE | - VIR_DOMAIN_DEVICE_MODIFY_CONFIG, -1); + virCheckFlagsUI(VIR_DOMAIN_DEVICE_MODIFY_CURRENT | + VIR_DOMAIN_DEVICE_MODIFY_LIVE | + VIR_DOMAIN_DEVICE_MODIFY_CONFIG, -1); if (flags & VIR_DOMAIN_DEVICE_MODIFY_CONFIG) { vboxError(VIR_ERR_OPERATION_INVALID, "%s", @@ -5189,7 +5189,7 @@ vboxDomainSnapshotCreateXML(virDomainPtr dom, PRInt32 result; #endif - virCheckFlags(0, NULL); + virCheckFlagsUI(0, NULL); if (!(def = virDomainSnapshotDefParseString(xmlDesc, 1))) goto cleanup; @@ -5304,7 +5304,7 @@ vboxDomainSnapshotDumpXML(virDomainSnapshotPtr snapshot, PRBool online = PR_FALSE; char uuidstr[VIR_UUID_STRING_BUFLEN]; - virCheckFlags(0, NULL); + virCheckFlagsUI(0, NULL); #if VBOX_API_VERSION == 2002 if (VIR_ALLOC(domiid) < 0) { @@ -5415,7 +5415,7 @@ vboxDomainSnapshotNum(virDomainPtr dom, nsresult rc; PRUint32 snapshotCount; - virCheckFlags(0, -1); + virCheckFlagsUI(0, -1); #if VBOX_API_VERSION == 2002 if (VIR_ALLOC(iid) < 0) { @@ -5462,7 +5462,7 @@ vboxDomainSnapshotListNames(virDomainPtr dom, int count = 0; int i; - virCheckFlags(0, -1); + virCheckFlagsUI(0, -1); #if VBOX_API_VERSION == 2002 if (VIR_ALLOC(iid) < 0) { @@ -5532,7 +5532,7 @@ vboxDomainSnapshotLookupByName(virDomainPtr dom, ISnapshot *snapshot = NULL; nsresult rc; - virCheckFlags(0, NULL); + virCheckFlagsUI(0, NULL); #if VBOX_API_VERSION == 2002 if (VIR_ALLOC(iid) < 0) { @@ -5571,7 +5571,7 @@ vboxDomainHasCurrentSnapshot(virDomainPtr dom, ISnapshot *snapshot = NULL; nsresult rc; - virCheckFlags(0, -1); + virCheckFlagsUI(0, -1); #if VBOX_API_VERSION == 2002 if (VIR_ALLOC(iid) < 0) { @@ -5618,7 +5618,7 @@ vboxDomainSnapshotCurrent(virDomainPtr dom, char *name = NULL; nsresult rc; - virCheckFlags(0, NULL); + virCheckFlagsUI(0, NULL); #if VBOX_API_VERSION == 2002 if (VIR_ALLOC(iid) < 0) { @@ -5793,7 +5793,7 @@ vboxDomainRevertToSnapshot(virDomainSnapshotPtr snapshot, PRUint32 state; nsresult rc; - virCheckFlags(0, -1); + virCheckFlagsUI(0, -1); #if VBOX_API_VERSION == 2002 if (VIR_ALLOC(domiid) < 0) { @@ -5961,7 +5961,7 @@ vboxDomainSnapshotDelete(virDomainSnapshotPtr snapshot, PRUint32 state; nsresult rc; - virCheckFlags(VIR_DOMAIN_SNAPSHOT_DELETE_CHILDREN, -1); + virCheckFlagsUI(VIR_DOMAIN_SNAPSHOT_DELETE_CHILDREN, -1); #if VBOX_API_VERSION == 2002 if (VIR_ALLOC(domiid) < 0) { diff --git a/src/xen/xend_internal.c b/src/xen/xend_internal.c index a203a8d..f1267cd 100644 --- a/src/xen/xend_internal.c +++ b/src/xen/xend_internal.c @@ -4205,9 +4205,9 @@ xenDaemonUpdateDeviceFlags(virDomainPtr domain, const char *xml, virBuffer buf = VIR_BUFFER_INITIALIZER; char class[8], ref[80]; - virCheckFlags(VIR_DOMAIN_DEVICE_MODIFY_CURRENT | - VIR_DOMAIN_DEVICE_MODIFY_LIVE | - VIR_DOMAIN_DEVICE_MODIFY_CONFIG, -1); + virCheckFlagsUI(VIR_DOMAIN_DEVICE_MODIFY_CURRENT | + VIR_DOMAIN_DEVICE_MODIFY_LIVE | + VIR_DOMAIN_DEVICE_MODIFY_CONFIG, -1); if ((domain == NULL) || (domain->conn == NULL) || (domain->name == NULL)) { virXendError(VIR_ERR_INVALID_ARG, __FUNCTION__); -- 1.6.6.1

1 0

[libvirt] [PATCH] Domain snapshot RNG and tests.
by Chris Lalancette 24 May '10

24 May '10

Signed-off-by: Chris Lalancette <clalance(a)redhat.com> --- docs/schemas/domainsnapshot.rng | 53 ++++++++++++++++++++ tests/Makefile.am | 6 ++- tests/domainsnapshotschematest | 10 ++++ tests/domainsnapshotxml2xmlin/description_only.xml | 3 + tests/domainsnapshotxml2xmlin/empty.xml | 1 + .../name_and_description.xml | 4 ++ tests/domainsnapshotxml2xmlin/name_only.xml | 3 + tests/domainsnapshotxml2xmlout/all_parameters.xml | 13 +++++ tests/domainsnapshotxml2xmlout/noparent.xml | 9 +++ .../noparent_nodescription.xml | 7 +++ .../noparent_nodescription_noactive.xml | 6 ++ 11 files changed, 114 insertions(+), 1 deletions(-) create mode 100644 docs/schemas/domainsnapshot.rng create mode 100755 tests/domainsnapshotschematest create mode 100644 tests/domainsnapshotxml2xmlin/description_only.xml create mode 100644 tests/domainsnapshotxml2xmlin/empty.xml create mode 100644 tests/domainsnapshotxml2xmlin/name_and_description.xml create mode 100644 tests/domainsnapshotxml2xmlin/name_only.xml create mode 100644 tests/domainsnapshotxml2xmlout/all_parameters.xml create mode 100644 tests/domainsnapshotxml2xmlout/noparent.xml create mode 100644 tests/domainsnapshotxml2xmlout/noparent_nodescription.xml create mode 100644 tests/domainsnapshotxml2xmlout/noparent_nodescription_noactive.xml diff --git a/docs/schemas/domainsnapshot.rng b/docs/schemas/domainsnapshot.rng new file mode 100644 index 0000000..86bab0b --- /dev/null +++ b/docs/schemas/domainsnapshot.rng @@ -0,0 +1,53 @@ + +<grammar xmlns="http://relaxng.org/ns/structure/1.0"> + <start> + <ref name='domainsnapshot'/> + </start> + + <define name='domainsnapshot'> + <element name='domainsnapshot'> + <interleave> + <optional> + <element name='name'> + <text/> + </element> + </optional> + <optional> + <element name='description'> + <text/> + </element> + </optional> + <optional> + <element name='state'> + <text/> + </element> + </optional> + <optional> + <element name='creationTime'> + <text/> + </element> + </optional> + <optional> + <element name='active'> + <text/> + </element> + </optional> + <optional> + <element name='domain'> + <element name='uuid'> + <text/> + </element> + </element> + </optional> + <optional> + <element name='parent'> + <element name='name'> + <text/> + </element> + </element> + </optional> + </interleave> + </element> + </define> + +</grammar> diff --git a/tests/Makefile.am b/tests/Makefile.am index c5e52e3..caf8cd0 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -76,6 +76,9 @@ EXTRA_DIST = \ nwfilterxml2xmlout \ nwfilterxml2xmlin \ nwfilterschematest \ + domainsnapshotschematest \ + domainsnapshotxml2xmlout \ + domainsnapshotxml2xmlin \ $(patsubst %,qemuhelpdata/%,$(qemuhelpdata)) noinst_PROGRAMS = virshtest conftest \ @@ -123,7 +126,8 @@ test_scripts = \ storagevolschematest \ domainschematest \ nodedevschematest \ - nwfilterschematest + nwfilterschematest \ + domainsnapshotschematest if WITH_LIBVIRTD test_scripts += \ diff --git a/tests/domainsnapshotschematest b/tests/domainsnapshotschematest new file mode 100755 index 0000000..1bdc539 --- /dev/null +++ b/tests/domainsnapshotschematest @@ -0,0 +1,10 @@ +#!/bin/sh + +: ${srcdir=.} +. $srcdir/test-lib.sh +. $abs_srcdir/schematestutils.sh + +DIRS="domainsnapshotxml2xmlin domainsnapshotxml2xmlout" +SCHEMA="domainsnapshot.rng" + +check_schema "$DIRS" "$SCHEMA" diff --git a/tests/domainsnapshotxml2xmlin/description_only.xml b/tests/domainsnapshotxml2xmlin/description_only.xml new file mode 100644 index 0000000..b76fca2 --- /dev/null +++ b/tests/domainsnapshotxml2xmlin/description_only.xml @@ -0,0 +1,3 @@ +<domainsnapshot> + <description>My description</description> +</domainsnapshot> diff --git a/tests/domainsnapshotxml2xmlin/empty.xml b/tests/domainsnapshotxml2xmlin/empty.xml new file mode 100644 index 0000000..f2bcfbe --- /dev/null +++ b/tests/domainsnapshotxml2xmlin/empty.xml @@ -0,0 +1 @@ +<domainsnapshot/> diff --git a/tests/domainsnapshotxml2xmlin/name_and_description.xml b/tests/domainsnapshotxml2xmlin/name_and_description.xml new file mode 100644 index 0000000..90ce774 --- /dev/null +++ b/tests/domainsnapshotxml2xmlin/name_and_description.xml @@ -0,0 +1,4 @@ +<domainsnapshot> + <name>snap1</name> + <description>A longer description!</description> +</domainsnapshot> diff --git a/tests/domainsnapshotxml2xmlin/name_only.xml b/tests/domainsnapshotxml2xmlin/name_only.xml new file mode 100644 index 0000000..8123a02 --- /dev/null +++ b/tests/domainsnapshotxml2xmlin/name_only.xml @@ -0,0 +1,3 @@ +<domainsnapshot> + <name>snapshot1</name> +</domainsnapshot> diff --git a/tests/domainsnapshotxml2xmlout/all_parameters.xml b/tests/domainsnapshotxml2xmlout/all_parameters.xml new file mode 100644 index 0000000..ed4a600 --- /dev/null +++ b/tests/domainsnapshotxml2xmlout/all_parameters.xml @@ -0,0 +1,13 @@ +<domainsnapshot> + <name>my snap name</name> + <description>!@#$%^</description> + <parent> + <name>earlier_snap</name> + </parent> + <state>running</state> + <creationTime>1272917631</creationTime> + <domain> + <uuid>9d37b878-a7cc-9f9a-b78f-49b3abad25a8</uuid> + </domain> + <active>1</active> +</domainsnapshot> diff --git a/tests/domainsnapshotxml2xmlout/noparent.xml b/tests/domainsnapshotxml2xmlout/noparent.xml new file mode 100644 index 0000000..cbac0d8 --- /dev/null +++ b/tests/domainsnapshotxml2xmlout/noparent.xml @@ -0,0 +1,9 @@ +<domainsnapshot> + <name>my snap name</name> + <description>!@#$%^</description> + <state>running</state> + <creationTime>1272917631</creationTime> + <domain> + <uuid>9d37b878-a7cc-9f9a-b78f-49b3abad25a8</uuid> + </domain> +</domainsnapshot> diff --git a/tests/domainsnapshotxml2xmlout/noparent_nodescription.xml b/tests/domainsnapshotxml2xmlout/noparent_nodescription.xml new file mode 100644 index 0000000..0de202d --- /dev/null +++ b/tests/domainsnapshotxml2xmlout/noparent_nodescription.xml @@ -0,0 +1,7 @@ +<domainsnapshot> + <name>my snap name</name> + <description>!@#$%^</description> + <state>running</state> + <creationTime>1272917631</creationTime> + <active>1</active> +</domainsnapshot> diff --git a/tests/domainsnapshotxml2xmlout/noparent_nodescription_noactive.xml b/tests/domainsnapshotxml2xmlout/noparent_nodescription_noactive.xml new file mode 100644 index 0000000..25b60f3 --- /dev/null +++ b/tests/domainsnapshotxml2xmlout/noparent_nodescription_noactive.xml @@ -0,0 +1,6 @@ +<domainsnapshot> + <name>my snap name</name> + <description>!@#$%^</description> + <state>running</state> + <creationTime>1272917631</creationTime> +</domainsnapshot> -- 1.6.6.1

3 11

[libvirt] [PATCH v2] storage: Sanitize pool target paths
by Cole Robinson 24 May '10

24 May '10

Spurious / in a pool target path makes life difficult for apps using the GetVolByPath, and doing other path based comparisons with pools. This has caused a few issues for virt-manager users: https://bugzilla.redhat.com/show_bug.cgi?id=494005 https://bugzilla.redhat.com/show_bug.cgi?id=593565 Add a new util API which removes spurious /, virFileSanitizePath. Sanitize target paths when parsing pool XML, and for paths passed to GetVolByPath. v2: Leading // must be preserved, properly sanitize path=/, sanitize away /./ -> / Signed-off-by: Cole Robinson <crobinso(a)redhat.com> --- src/conf/storage_conf.c | 8 ++++++- src/libvirt_private.syms | 1 + src/storage/storage_driver.c | 8 ++++++- src/util/util.c | 49 ++++++++++++++++++++++++++++++++++++++++++ src/util/util.h | 3 ++ 5 files changed, 67 insertions(+), 2 deletions(-) diff --git a/src/conf/storage_conf.c b/src/conf/storage_conf.c index 9aad081..422e76a 100644 --- a/src/conf/storage_conf.c +++ b/src/conf/storage_conf.c @@ -602,6 +602,7 @@ virStoragePoolDefParseXML(xmlXPathContextPtr ctxt) { xmlNodePtr source_node; char *type = NULL; char *uuid = NULL; + char *tmppath; if (VIR_ALLOC(ret) < 0) { virReportOOMError(); @@ -699,11 +700,16 @@ virStoragePoolDefParseXML(xmlXPathContextPtr ctxt) { } } - if ((ret->target.path = virXPathString("string(./target/path)", ctxt)) == NULL) { + if ((tmppath = virXPathString("string(./target/path)", ctxt)) == NULL) { virStorageReportError(VIR_ERR_XML_ERROR, "%s", _("missing storage pool target path")); goto cleanup; } + ret->target.path = virFileSanitizePath(tmppath); + VIR_FREE(tmppath); + if (!ret->target.path) + goto cleanup; + if (virStorageDefParsePerms(ctxt, &ret->target.perms, "./target/permissions", 0700) < 0) diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index 1594a08..2c74b08 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -667,6 +667,7 @@ virFileReadLimFD; virFilePid; virFileReadPid; virFileLinkPointsTo; +virFileSanitizePath; virParseNumber; virParseVersionString; virPipeReadUntilEOF; diff --git a/src/storage/storage_driver.c b/src/storage/storage_driver.c index b148e39..0870f74 100644 --- a/src/storage/storage_driver.c +++ b/src/storage/storage_driver.c @@ -1204,6 +1204,11 @@ storageVolumeLookupByPath(virConnectPtr conn, virStorageDriverStatePtr driver = conn->storagePrivateData; unsigned int i; virStorageVolPtr ret = NULL; + char *cleanpath; + + cleanpath = virFileSanitizePath(path); + if (!cleanpath) + return NULL; storageDriverLock(driver); for (i = 0 ; i < driver->pools.count && !ret ; i++) { @@ -1213,7 +1218,7 @@ storageVolumeLookupByPath(virConnectPtr conn, const char *stable_path; stable_path = virStorageBackendStablePath(driver->pools.objs[i], - path); + cleanpath); /* * virStorageBackendStablePath already does * virStorageReportError if it fails; we just need to keep @@ -1242,6 +1247,7 @@ storageVolumeLookupByPath(virConnectPtr conn, "%s", _("no storage vol with matching path")); cleanup: + VIR_FREE(cleanpath); storageDriverUnlock(driver); return ret; } diff --git a/src/util/util.c b/src/util/util.c index 92b9a0f..b141406 100644 --- a/src/util/util.c +++ b/src/util/util.c @@ -1921,6 +1921,55 @@ int virFileAbsPath(const char *path, char **abspath) return 0; } +/* Remove spurious / characters from a path. The result must be freed */ +char * +virFileSanitizePath(const char *path) +{ + const char *cur = path; + char *cleanpath; + int idx = 0; + + cleanpath = strdup(path); + if (!cleanpath) { + virReportOOMError(); + return NULL; + } + + /* Starting with // is valid posix, but ///foo == /foo */ + if (cur[0] == '/' && cur[1] == '/' && cur[2] != '/') { + cleanpath[0] = '/'; + cleanpath[1] = '/'; + idx = 2; + cur += 2; + } + + /* Sanitize path in place */ + while (*cur != '\0') { + if (*cur != '/') { + cleanpath[idx++] = *cur++; + continue; + } + + /* Skip all extra / */ + while (*cur == '/') { + cur++; + + /* Resolve away /./ to just / */ + if (cur[0] == '.' && cur[1] == '/') + cur++; + } + + /* Don't add a trailing / unless path is only made of / */ + if (idx != 0 && *cur == '\0') + break; + + cleanpath[idx++] = '/'; + } + cleanpath[idx] = '\0'; + + return cleanpath; +} + /* Like strtol, but produce an "int" result, and check more carefully. Return 0 upon success; return -1 to indicate failure. When END_PTR is NULL, the byte after the final valid digit must be NUL. diff --git a/src/util/util.h b/src/util/util.h index 6bf6bcc..302bddf 100644 --- a/src/util/util.h +++ b/src/util/util.h @@ -118,6 +118,9 @@ char *virFindFileInPath(const char *file); int virFileExists(const char *path); +char *virFileSanitizePath(const char *path) +ATTRIBUTE_NONNULL(1); + enum { VIR_FILE_OP_NONE = 0, VIR_FILE_OP_AS_UID = (1 << 0), -- 1.6.6.1

2 2

[libvirt] [PATCH] network: bridge: Don't start network if it collides with host routing
by Cole Robinson 24 May '10

24 May '10

Fedora bug https://bugzilla.redhat.com/show_bug.cgi?id=235961 If using the default virtual network, an easy way to lose guest network connectivity is to install libvirt inside the VM. The autostarted default network inside the guest collides with host virtual network routing. This is a long standing issue that has caused users quite a bit of pain and confusion. On network startup, parse /proc/net/route and compare the requested IP+netmask against host routing destinations: if any matches are found, refuse to start the network. Caveat: I'm not very networking savvy Signed-off-by: Cole Robinson <crobinso(a)redhat.com> --- src/network/bridge_driver.c | 92 +++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 92 insertions(+), 0 deletions(-) diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c index 5d7ef19..79da757 100644 --- a/src/network/bridge_driver.c +++ b/src/network/bridge_driver.c @@ -42,6 +42,8 @@ #include <stdio.h> #include <sys/wait.h> #include <sys/ioctl.h> +#include <netinet/in.h> +#include <arpa/inet.h> #include "virterror_internal.h" #include "datatypes.h" @@ -908,6 +910,92 @@ cleanup: return ret; } +#define PROC_NET_ROUTE "/proc/net/route" + +static int networkCheckRouteCollision(virNetworkObjPtr network) +{ + int ret = -1, len; + char *cur, *buf = NULL; + enum {MAX_ROUTE_SIZE = 1024*64}; + struct in_addr inaddress, innetmask; + char *netaddr = NULL; + + if (!network->def->ipAddress || !network->def->netmask) + return 0; + + if (inet_pton(AF_INET, network->def->ipAddress, &inaddress) <= 0) { + networkReportError(VIR_ERR_INTERNAL_ERROR, + _("cannot parse IP address '%s'"), + network->def->ipAddress); + goto error; + } + if (inet_pton(AF_INET, network->def->netmask, &innetmask) <= 0) { + networkReportError(VIR_ERR_INTERNAL_ERROR, + _("cannot parse netmask '%s'"), + network->def->netmask); + goto error; + } + + inaddress.s_addr &= innetmask.s_addr; + netaddr = strdup(inet_ntoa(inaddress)); + if (!netaddr) { + virReportOOMError(); + goto error; + } + + /* Read whole routing table into memory */ + if ((len = virFileReadAll(PROC_NET_ROUTE, MAX_ROUTE_SIZE, &buf)) < 0) + goto error; + + /* Dropping the last character shouldn't hurt */ + buf[len-1] = '\0'; + + /* First line is just headings, skip it */ + cur = strchr(buf, '\n'); + + while (cur) { + char iface[17]; + char dest_buf[128]; + char *dest_ip; + struct in_addr in; + int num; + unsigned int addr_val; + + cur++; + num = sscanf(cur, "%16s %127s", iface, dest_buf); + if (num != 2) { + networkReportError(VIR_ERR_INTERNAL_ERROR, + _("Failed to parse %s"), PROC_NET_ROUTE); + goto error; + } + + if (virStrToLong_ui(dest_buf, NULL, 16, &addr_val) < 0) { + networkReportError(VIR_ERR_INTERNAL_ERROR, + _("Failed not convert network address %s"), + dest_buf); + goto error; + } + + in.s_addr = addr_val; + dest_ip = inet_ntoa(in); + + if (STREQ(netaddr, dest_ip)) { + networkReportError(VIR_ERR_INTERNAL_ERROR, + _("Network destination %s is already in use " + "by interface %s"), netaddr, iface); + goto error; + } + + cur = strchr(cur, '\n'); + } + + ret = 0; +error: + VIR_FREE(buf); + VIR_FREE(netaddr); + return ret; +} + static int networkStartNetworkDaemon(struct network_driver *driver, virNetworkObjPtr network) { @@ -919,6 +1007,10 @@ static int networkStartNetworkDaemon(struct network_driver *driver, return -1; } + /* Check to see if network collides with an existing route */ + if (networkCheckRouteCollision(network) < 0) + return -1; + if ((err = brAddBridge(driver->brctl, network->def->bridge))) { virReportSystemError(err, _("cannot create bridge '%s'"), -- 1.6.6.1

5 8

[libvirt] [RFC PATCH v3] qemu: Add suport for pci-assign.configfd option
by Alex Williamson 24 May '10

24 May '10

This allows libvirt to open the PCI device sysfs config file prior to dropping privileges so qemu can access the full config space. Without this, a de-privileged qemu can only access the first 64 bytes of config space. Signed-off-by: Alex Williamson <alex.williamson(a)redhat.com> --- Note: this is still dependent on the configfd option being accepted into qemu/kvm. v2: - fix qemuargs, two separate args (thanks Chris) - don't hardcode pci segment - error message of open() fail v3: - add hotplug support - incorporate Daniel's comments src/qemu/qemu_conf.c | 98 +++++++++++++++++++++++++++++++++++++++++++++++- src/qemu/qemu_conf.h | 6 ++- src/qemu/qemu_driver.c | 28 +++++++++++++- 3 files changed, 128 insertions(+), 4 deletions(-) diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c index 2755545..926ce48 100644 --- a/src/qemu/qemu_conf.c +++ b/src/qemu/qemu_conf.c @@ -1350,6 +1350,48 @@ fail: return -1; } +static void qemudParsePCIDeviceStrs(const char *qemu, unsigned long long *flags) +{ + const char *const qemuarg[] = { qemu, "-device", "pci-assign,?", NULL }; + const char *const qemuenv[] = { "LC_ALL=C", NULL }; + pid_t child; + int status; + int newstderr = -1; + + if (virExec(qemuarg, qemuenv, NULL, + &child, -1, NULL, &newstderr, VIR_EXEC_CLEAR_CAPS) < 0) + return; + + char *pciassign = NULL; + enum { MAX_PCI_OUTPUT_SIZE = 1024*4 }; + int len = virFileReadLimFD(newstderr, MAX_PCI_OUTPUT_SIZE, &pciassign); + if (len < 0) { + virReportSystemError(errno, + _("Unable to read %s pci-assign device output"), + qemu); + goto cleanup; + } + + if (strstr(pciassign, "pci-assign.configfd")) + *flags |= QEMUD_CMD_FLAG_PCI_CONFIGFD; + +cleanup: + VIR_FREE(pciassign); + close(newstderr); +rewait: + if (waitpid(child, &status, 0) != child) { + if (errno == EINTR) + goto rewait; + + VIR_ERROR(_("Unexpected exit status from qemu %d pid %lu"), + WEXITSTATUS(status), (unsigned long)child); + } + if (WEXITSTATUS(status) != 0) { + VIR_WARN("Unexpected exit status '%d', qemu probably failed", + WEXITSTATUS(status)); + } +} + int qemudExtractVersionInfo(const char *qemu, unsigned int *retversion, unsigned long long *retflags) { @@ -1383,6 +1425,9 @@ int qemudExtractVersionInfo(const char *qemu, &version, &is_kvm, &kvm_version) == -1) goto cleanup2; + if (flags & QEMUD_CMD_FLAG_DEVICE) + qemudParsePCIDeviceStrs(qemu, &flags); + if (retversion) *retversion = version; if (retflags) @@ -2892,8 +2937,33 @@ error: } +int +qemudOpenPCIConfig(virDomainHostdevDefPtr dev) +{ + char *path = NULL; + int configfd = -1; + + if (virAsprintf(&path, "/sys/bus/pci/devices/%04x:%02x:%02x.%01x/config", + dev->source.subsys.u.pci.domain, + dev->source.subsys.u.pci.bus, + dev->source.subsys.u.pci.slot, + dev->source.subsys.u.pci.function) < 0) { + virReportOOMError(); + return -1; + } + + configfd = open(path, O_RDWR, 0); + + if (configfd < 0) + virReportSystemError(errno, _("Failed opening %s"), path); + + VIR_FREE(path); + + return configfd; +} + char * -qemuBuildPCIHostdevDevStr(virDomainHostdevDefPtr dev) +qemuBuildPCIHostdevDevStr(virDomainHostdevDefPtr dev, const char *configfd) { virBuffer buf = VIR_BUFFER_INITIALIZER; @@ -2903,6 +2973,8 @@ qemuBuildPCIHostdevDevStr(virDomainHostdevDefPtr dev) dev->source.subsys.u.pci.slot, dev->source.subsys.u.pci.function); virBufferVSprintf(&buf, ",id=%s", dev->info.alias); + if (configfd && *configfd) + virBufferVSprintf(&buf, ",configfd=%s", configfd); if (qemuBuildDeviceAddressStr(&buf, &dev->info) < 0) goto error; @@ -4605,8 +4677,30 @@ int qemudBuildCommandLine(virConnectPtr conn, if (hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS && hostdev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI) { if (qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE) { + char *configfd_name = NULL; + if (qemuCmdFlags & QEMUD_CMD_FLAG_PCI_CONFIGFD) { + int configfd = qemudOpenPCIConfig(hostdev); + + if (configfd >= 0) { + if (virAsprintf(&configfd_name, "%d", configfd) < 0) { + close(configfd); + virReportOOMError(); + goto no_memory; + } + + if (VIR_REALLOC_N(*vmfds, (*nvmfds)+1) < 0) { + VIR_FREE(configfd_name); + close(configfd); + goto no_memory; + } + + (*vmfds)[(*nvmfds)++] = configfd; + } + } ADD_ARG_LIT("-device"); - if (!(devstr = qemuBuildPCIHostdevDevStr(hostdev))) + devstr = qemuBuildPCIHostdevDevStr(hostdev, configfd_name); + VIR_FREE(configfd_name); + if (!devstr) goto error; ADD_ARG(devstr); } else if (qemuCmdFlags & QEMUD_CMD_FLAG_PCIDEVICE) { diff --git a/src/qemu/qemu_conf.h b/src/qemu/qemu_conf.h index 8fd8d79..d5ce4ce 100644 --- a/src/qemu/qemu_conf.h +++ b/src/qemu/qemu_conf.h @@ -89,6 +89,7 @@ enum qemud_cmd_flags { QEMUD_CMD_FLAG_NO_HPET = (1LL << 33), /* -no-hpet flag is supported */ QEMUD_CMD_FLAG_NO_KVM_PIT = (1LL << 34), /* -no-kvm-pit-reinjection supported */ QEMUD_CMD_FLAG_TDF = (1LL << 35), /* -tdf flag (user-mode pit catchup) */ + QEMUD_CMD_FLAG_PCI_CONFIGFD = (1LL << 36), /* pci-assign.configfd */ }; /* Main driver state */ @@ -245,7 +246,10 @@ char * qemuBuildSoundDevStr(virDomainSoundDefPtr sound); /* Legacy, pre device support */ char * qemuBuildPCIHostdevPCIDevStr(virDomainHostdevDefPtr dev); /* Current, best practice */ -char * qemuBuildPCIHostdevDevStr(virDomainHostdevDefPtr dev); +char * qemuBuildPCIHostdevDevStr(virDomainHostdevDefPtr dev, + const char *configfd); + +int qemudOpenPCIConfig(virDomainHostdevDefPtr dev); /* Current, best practice */ char * qemuBuildChrChardevStr(virDomainChrDefPtr dev); diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index afdc718..52f2374 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -7655,6 +7655,8 @@ static int qemudDomainAttachHostPciDevice(struct qemud_driver *driver, pciDevice *pci; int ret; char *devstr = NULL; + int configfd = -1; + char *configfd_name = NULL; if (VIR_REALLOC_N(vm->def->hostdevs, vm->def->nhostdevs+1) < 0) { virReportOOMError(); @@ -7685,8 +7687,26 @@ static int qemudDomainAttachHostPciDevice(struct qemud_driver *driver, goto error; if (qemuDomainPCIAddressEnsureAddr(priv->pciaddrs, &hostdev->info) < 0) goto error; + if (qemuCmdFlags & QEMUD_CMD_FLAG_PCI_CONFIGFD) { + configfd = qemudOpenPCIConfig(hostdev); + if (configfd >= 0) { + if (virAsprintf(&configfd_name, "fd-%s", + hostdev->info.alias) < 0) { + virReportOOMError(); + goto error; + } + + qemuDomainObjEnterMonitorWithDriver(driver, vm); + if (qemuMonitorSendFileHandle(priv->mon, configfd_name, + configfd) < 0) { + qemuDomainObjExitMonitorWithDriver(driver, vm); + goto error; + } + qemuDomainObjExitMonitorWithDriver(driver, vm); + } + } - if (!(devstr = qemuBuildPCIHostdevDevStr(hostdev))) + if (!(devstr = qemuBuildPCIHostdevDevStr(hostdev, configfd_name))) goto error; qemuDomainObjEnterMonitorWithDriver(driver, vm); @@ -7710,6 +7730,9 @@ static int qemudDomainAttachHostPciDevice(struct qemud_driver *driver, vm->def->hostdevs[vm->def->nhostdevs++] = hostdev; VIR_FREE(devstr); + VIR_FREE(configfd_name); + if (configfd >= 0) + close(configfd); return 0; @@ -7721,6 +7744,9 @@ error: VIR_FREE(devstr); pciDeviceListDel(driver->activePciHostdevs, pci); + VIR_FREE(configfd_name); + if (configfd >= 0) + close(configfd); return -1; }

2 1

[libvirt] [v2 PATCH] add 802.1Qbh handling for port-profiles based on Stefan's previous patches
by Scott Feldman 24 May '10

24 May '10

From: Scott Feldman <scofeldm(a)cisco.com> This patch builds on the work recently posted by Stefan Berger. It builds on top of Stefan's two posted patches: [PATCH v8] vepa: parsing for 802.1Qb{g|h} XML [RFC][PATCH 1/3] vepa+vsi: Introduce dependency on libnl Stefan's patches 2/3 and 3/3 are incorporated into my patch. Changes from v1 to v2: - Add Stefan's code for getPortProfileStatus - Poll for up to 2 secs for port-profile status, at 1/8 sec intervals: - if status indicates error, abort openMacvtapTap - if status indicates success, exit polling - if status is "in-progress" after 2 secs of polling, exit polling loop silently, without error My patch finishes out the 802.1Qbh parts, which Stefan had mostly complete. I've tested using the recent kernel updates for VF_PORT netlink msgs and enic for Cisco's 10G Ethernet NIC. I tested many VMs, each with several direct interfaces, each configured with a port-profile per the XML. VM-to-VM, and VM-to-external work as expected. VM-to-VM on same host (using same NIC) works same as VM-to-VM where VMs are on diff hosts. I'm able to change settings on the port-profile while the VM is running to change the virtual port behaviour. For example, adjusting a QoS setting like rate limit. All VMs with interfaces using that port-profile immediatly see the effect of the change to the port-profile. I don't have a SR-IOV device to test so source dev is a non-SR-IOV device, but most of the code paths include support for specifing the source dev and VF index. We'll need to complete this by discovering the PF given the VF linkdev. Once we have the PF, we'll also have the VF index. All this info- mation is available from sysfs. Signed-off-by: Scott Feldman <scofeldm(a)cisco.com> --- configure.ac | 16 + src/util/macvtap.c | 778 +++++++++++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 778 insertions(+), 16 deletions(-) diff --git a/configure.ac b/configure.ac index 36ba703..885b0ae 100644 --- a/configure.ac +++ b/configure.ac @@ -2005,13 +2005,26 @@ if test "$with_macvtap" != "no" ; then fi AM_CONDITIONAL([WITH_MACVTAP], [test "$with_macvtap" = "yes"]) +AC_TRY_COMPILE([ #include <sys/socket.h> + #include <linux/rtnetlink.h> ], + [ int x = IFLA_PORT_MAX; ], + [ with_virtualport=yes ], + [ with_virtualport=no ]) +if test "$with_virtualport" = "yes"; then + val=1 +else + val=0 +fi +AC_DEFINE_UNQUOTED([WITH_VIRTUALPORT], $val, [whether vsi vepa support is enabled]) +AM_CONDITIONAL([WITH_VIRTUALPORT], [test "$with_virtualport" = "yes"]) + dnl netlink library LIBNL_CFLAGS="" LIBNL_LIBS="" -if test "$with_macvtap" = "yes"; then +if test "$with_macvtap" = "yes" || "$with_virtualport" = "yes"; then PKG_CHECK_MODULES([LIBNL], [libnl-1 >= $LIBNL_REQUIRED], [ ], [ AC_MSG_ERROR([libnl >= $LIBNL_REQUIRED is required for macvtap support]) @@ -2084,6 +2097,7 @@ AC_MSG_NOTICE([ Network: $with_network]) AC_MSG_NOTICE([Libvirtd: $with_libvirtd]) AC_MSG_NOTICE([ netcf: $with_netcf]) AC_MSG_NOTICE([ macvtap: $with_macvtap]) +AC_MSG_NOTICE([virtport: $with_virtualport]) AC_MSG_NOTICE([]) AC_MSG_NOTICE([Storage Drivers]) AC_MSG_NOTICE([]) diff --git a/src/util/macvtap.c b/src/util/macvtap.c index da81447..9ecc7f1 100644 --- a/src/util/macvtap.c +++ b/src/util/macvtap.c @@ -27,7 +27,7 @@ #include <config.h> -#if WITH_MACVTAP +#if WITH_MACVTAP || WITH_VIRTUALPORT # include <stdio.h> # include <errno.h> @@ -41,6 +41,8 @@ # include <linux/rtnetlink.h> # include <linux/if_tun.h> +# include <netlink/msg.h> + # include "util.h" # include "memory.h" # include "logging.h" @@ -58,15 +60,24 @@ # define MACVTAP_NAME_PREFIX "macvtap" # define MACVTAP_NAME_PATTERN "macvtap%d" +# define MICROSEC_PER_SEC (1000 * 1000) + static int associatePortProfileId(const char *macvtap_ifname, + const char *linkdev, const virVirtualPortProfileDefPtr virtPort, - int vf, - const unsigned char *vmuuid); + const unsigned char *vmuuid, + const unsigned char *hostuuid); static int disassociatePortProfileId(const char *macvtap_ifname, + const char *linkdev, const virVirtualPortProfileDefPtr virtPort); +enum virVirtualPortOp { + ASSOCIATE = 0x1, + DISASSOCIATE = 0x2, +}; + static int nlOpen(void) { @@ -159,6 +170,169 @@ err_exit: } +# ifdef IFLA_VF_PORT_MAX + +/** + * nlCommWaitSuccess: + * + * @nlmsg: pointer to netlink message + * @nl_grousp: the netlink multicast groups to send to + * @respbuf: pointer to pointer where response buffer will be allocated + * @respbuflen: pointer to integer holding the size of the response buffer + * on return of the function. + * @to_usecs: timeout in microseconds to wait for a success message + * to be returned + * + * Send the given message to the netlink multicast group and receive + * responses. Skip responses indicating an error and keep on receiving + * responses until a success response is returned. + * Returns 0 on success, -1 on error. In case of error, no response + * buffer will be returned. + */ +static int +nlCommWaitSuccess(struct nlmsghdr *nlmsg, int nl_groups, + char **respbuf, int *respbuflen, long to_usecs) +{ + int rc = 0; + struct sockaddr_nl nladdr = { + .nl_family = AF_NETLINK, + .nl_pid = getpid(), + .nl_groups = nl_groups, + }; + int rcvChunkSize = 1024; // expecting less than that + int rcvoffset = 0; + ssize_t nbytes; + int n; + struct timeval tv = { + .tv_sec = to_usecs / MICROSEC_PER_SEC, + .tv_usec = to_usecs % MICROSEC_PER_SEC, + }; + fd_set rfds; + bool gotvalid = false; + int fd = nlOpen(); + static uint32_t seq = 0x1234; + uint32_t myseq = seq++; + uint32_t mypid = getpid(); + + if (fd < 0) + return -1; + + nlmsg->nlmsg_pid = mypid; + nlmsg->nlmsg_seq = myseq; + nlmsg->nlmsg_flags |= NLM_F_ACK; + + nbytes = sendto(fd, (void *)nlmsg, nlmsg->nlmsg_len, 0, + (struct sockaddr *)&nladdr, sizeof(nladdr)); + if (nbytes < 0) { + virReportSystemError(errno, + "%s", _("cannot send to netlink socket")); + rc = -1; + goto err_exit; + } + fprintf(stderr,"sent %d bytes\n", (int)nbytes); + + while (!gotvalid) { + rcvoffset = 0; + while (1) { + socklen_t addrlen = sizeof(nladdr); + + if (VIR_REALLOC_N(*respbuf, rcvoffset+rcvChunkSize) < 0) { + virReportOOMError(); + rc = -1; + goto err_exit; + } + + FD_ZERO(&rfds); + FD_SET(fd, &rfds); + + n = select(fd + 1, &rfds, NULL, NULL, &tv); + if (n == 0) { + fprintf(stderr,"Select timed out.\n"); + rc = -1; + goto err_exit; + } + + nbytes = recvfrom(fd, &((*respbuf)[rcvoffset]), rcvChunkSize, 0, + (struct sockaddr *)&nladdr, &addrlen); + fprintf(stderr,"got something... %d bytes\n",(int)nbytes); + if (nbytes < 0) { + if (errno == EAGAIN || errno == EINTR) + continue; + virReportSystemError(errno, "%s", + _("error receiving from netlink socket")); + rc = -1; + goto err_exit; + } + rcvoffset += nbytes; + break; + } + *respbuflen = rcvoffset; + + /* check message for error */ + if (*respbuflen > NLMSG_LENGTH(0) && *respbuf != NULL) { + struct nlmsghdr *resp = (struct nlmsghdr *)*respbuf; + struct nlmsgerr *err; + + fprintf(stderr,"resp->nlmsg_type=%d\n", resp->nlmsg_type); + fprintf(stderr,"resp->nlmsg_flags=0x%x\n", resp->nlmsg_flags); + fprintf(stderr,"resp->nlmsg_seq=%d (%d)\n", resp->nlmsg_seq, myseq); + fprintf(stderr,"resp->nlmsg_pid=%d (%d)\n", resp->nlmsg_pid, mypid); + + if (resp->nlmsg_pid != mypid || + resp->nlmsg_seq != myseq) + continue; + + /* skip reflected message */ + if (resp->nlmsg_type & 0x10) + continue; + + switch (resp->nlmsg_type) { + case NLMSG_ERROR: + err = (struct nlmsgerr *)NLMSG_DATA(resp); + if (resp->nlmsg_len >= NLMSG_LENGTH(sizeof(*err))) { + fprintf(stderr,"error %d\n", -err->error); + if (-err->error != EOPNOTSUPP) { + /* assuming error msg from daemon */ + fprintf(stderr,"Got error %d, but assuming its response from lldpad: len = %d\n", + -err->error, + *respbuflen); + gotvalid = true; + break; + } + } + /* whatever this is, skip it */ + VIR_FREE(*respbuf); + *respbuf = NULL; + *respbuflen = 0; + fprintf(stderr,"Skipping error resp. msg.\n"); + break; + + case NLMSG_DONE: + gotvalid = true; + break; + + default: + VIR_FREE(*respbuf); + *respbuf = NULL; + *respbuflen = 0; + break; + } + } + } + +err_exit: + if (rc == -1) { + VIR_FREE(*respbuf); + *respbuf = NULL; + *respbuflen = 0; + } + + nlClose(fd); + return rc; +} + +#endif + static struct rtattr * rtattrCreate(char *buffer, int bufsize, int type, const void *data, int datalen) @@ -204,6 +378,8 @@ nlAppend(struct nlmsghdr *nlm, int totlen, const void *data, int datalen) } +# if WITH_MACVTAP + static int link_add(const char *type, const unsigned char *macaddress, int macaddrsize, @@ -651,9 +827,10 @@ create_name: } if (associatePortProfileId(cr_ifname, + net->data.direct.linkdev, &net->data.direct.virtPortProfile, - -1, - vmuuid) != 0) { + vmuuid, + NULL /* hostuuid */) != 0) { rc = -1; goto link_del_exit; } @@ -685,6 +862,7 @@ create_name: disassociate_exit: disassociatePortProfileId(cr_ifname, + net->data.direct.linkdev, &net->data.direct.virtPortProfile); link_del_exit: @@ -707,21 +885,572 @@ delMacvtap(virDomainNetDefPtr net) { if (net->ifname) { disassociatePortProfileId(net->ifname, + net->data.direct.linkdev, &net->data.direct.virtPortProfile); link_del(net->ifname); } } -#endif +# endif + + +# ifdef IFLA_PORT_MAX + +static struct nla_policy ifla_policy[IFLA_MAX + 1] = +{ + [IFLA_VF_PORTS] = { .type = NLA_NESTED }, +}; + +static struct nla_policy ifla_vf_ports_policy[IFLA_VF_PORT_MAX + 1] = +{ + [IFLA_VF_PORT] = { .type = NLA_NESTED }, +}; + +static struct nla_policy ifla_port_policy[IFLA_PORT_MAX + 1] = +{ + [IFLA_PORT_RESPONSE] = { .type = NLA_U16 }, +}; + + +static int +link_dump(int ifindex, const char *ifname, struct nlattr **tb, + char **recvbuf) +{ + int rc = 0; + char nlmsgbuf[256] = { 0, }; + struct nlmsghdr *nlm = (struct nlmsghdr *)nlmsgbuf, *resp; + struct nlmsgerr *err; + char rtattbuf[64]; + struct rtattr *rta; + struct ifinfomsg i = { + .ifi_family = AF_UNSPEC, + .ifi_index = ifindex + }; + int recvbuflen; + + *recvbuf = NULL; + + nlInit(nlm, NLM_F_REQUEST, RTM_GETLINK); + + if (!nlAppend(nlm, sizeof(nlmsgbuf), &i, sizeof(i))) + goto buffer_too_small; + + if (ifindex < 0 && ifname != NULL) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_IFNAME, + ifname, strlen(ifname) + 1); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (nlComm(nlm, recvbuf, &recvbuflen) < 0) + return -1; + + if (recvbuflen < NLMSG_LENGTH(0) || *recvbuf == NULL) + goto malformed_resp; + + resp = (struct nlmsghdr *)*recvbuf; + + switch (resp->nlmsg_type) { + case NLMSG_ERROR: + err = (struct nlmsgerr *)NLMSG_DATA(resp); + if (resp->nlmsg_len < NLMSG_LENGTH(sizeof(*err))) + goto malformed_resp; + + switch (-err->error) { + case 0: + break; + + default: + virReportSystemError(-err->error, + _("error dumping %d interface"), + ifindex); + rc = -1; + } + break; + + case GENL_ID_CTRL: + case NLMSG_DONE: + if (nlmsg_parse(resp, sizeof(struct ifinfomsg), + tb, IFLA_MAX, ifla_policy)) { + goto malformed_resp; + } + break; + + default: + goto malformed_resp; + } + + if (rc != 0) + VIR_FREE(*recvbuf); + + return rc; + +malformed_resp: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("malformed netlink response message")); + VIR_FREE(*recvbuf); + return -1; + +buffer_too_small: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("internal buffer is too small")); + return -1; +} + + +static int +getPortProfileStatus(struct nlattr **tb, int32_t vf, uint16_t *status) +{ + int rc = 1; + const char *msg = NULL; + struct nlattr *tb2[IFLA_VF_PORT_MAX + 1], + *tb3[IFLA_PORT_MAX+1]; + + if (vf == PORT_SELF_VF) { + if (tb[IFLA_PORT_SELF]) { + if (nla_parse_nested(tb3, IFLA_PORT_MAX, tb[IFLA_PORT_SELF], + ifla_port_policy)) { + msg = _("error parsing nested IFLA_VF_PORT part"); + goto err_exit; + } + } + } else { + if (tb[IFLA_VF_PORTS]) { + if (nla_parse_nested(tb2, IFLA_VF_PORT_MAX, tb[IFLA_VF_PORTS], + ifla_vf_ports_policy)) { + msg = _("error parsing nested IFLA_VF_PORTS part"); + goto err_exit; + } + if (tb2[IFLA_VF_PORT]) { + if (nla_parse_nested(tb3, IFLA_PORT_MAX, tb2[IFLA_VF_PORT], + ifla_port_policy)) { + msg = _("error parsing nested IFLA_VF_PORT part"); + goto err_exit; + } + } + } + } + + if (tb3[IFLA_PORT_RESPONSE]) { + *status = *(uint16_t *)RTA_DATA(tb3[IFLA_PORT_RESPONSE]); + rc = 0; + } else { + msg = _("no IFLA_PORT_RESPONSE found in netlink message"); + goto err_exit; + } + +err_exit: + if (msg) + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", msg); + + return rc; +} + + +static int +doPortProfileOpSetLink(bool multicast, + const char *ifname, int ifindex, + const char *profileId, + struct ifla_port_vsi *portVsi, + const unsigned char *instanceId, + const unsigned char *hostUUID, + int32_t vf, + uint8_t op) +{ + int rc = 0; + char nlmsgbuf[256]; + struct nlmsghdr *nlm = (struct nlmsghdr *)nlmsgbuf, *resp; + struct nlmsgerr *err; + char rtattbuf[64]; + struct rtattr *rta, *vfports, *vfport; + struct ifinfomsg ifinfo = { + .ifi_family = AF_UNSPEC, + .ifi_index = ifindex, + }; + char *recvbuf = NULL; + int recvbuflen = 0; + + memset(&nlmsgbuf, 0, sizeof(nlmsgbuf)); + + nlInit(nlm, NLM_F_REQUEST, RTM_SETLINK); + + if (!nlAppend(nlm, sizeof(nlmsgbuf), &ifinfo, sizeof(ifinfo))) + goto buffer_too_small; + + if (vf == PORT_SELF_VF) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_SELF, NULL, 0); + } else { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_VF_PORTS, NULL, 0); + if (!rta) + goto buffer_too_small; + + if (!(vfports = nlAppend(nlm, sizeof(nlmsgbuf), + rtattbuf, rta->rta_len))) + goto buffer_too_small; + + /* beging nesting vfports */ + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_VF_PORT, NULL, 0); + } + + if (!rta) + goto buffer_too_small; + + if (!(vfport = nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len))) + goto buffer_too_small; + + if (profileId) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_PROFILE, + profileId, strlen(profileId) + 1); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (portVsi) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_VSI_TYPE, + portVsi, sizeof(*portVsi)); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (instanceId) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_INSTANCE_UUID, + instanceId, VIR_UUID_BUFLEN); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (hostUUID) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_HOST_UUID, + hostUUID, VIR_UUID_BUFLEN); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (vf != PORT_SELF_VF) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_VF, + &vf, sizeof(vf)); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_REQUEST, + &op, sizeof(op)); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + + /* end nesting of vport */ + vfport->rta_len = (char *)nlm + nlm->nlmsg_len - (char *)vfport; + + if (vf != PORT_SELF_VF) { + /* end nesting of vfports */ + vfports->rta_len = (char *)nlm + nlm->nlmsg_len - (char *)vfports; + } + + if (!multicast) { + if (nlComm(nlm, &recvbuf, &recvbuflen) < 0) + return -1; + } else { + if (nlCommWaitSuccess(nlm, RTMGRP_LINK, &recvbuf, &recvbuflen, + 5 * MICROSEC_PER_SEC) < 0) + return -1; + } + + if (recvbuflen < NLMSG_LENGTH(0) || recvbuf == NULL) + goto malformed_resp; + + resp = (struct nlmsghdr *)recvbuf; + + switch (resp->nlmsg_type) { + case NLMSG_ERROR: + err = (struct nlmsgerr *)NLMSG_DATA(resp); + if (resp->nlmsg_len < NLMSG_LENGTH(sizeof(*err))) + goto malformed_resp; + + switch (-err->error) { + case 0: + break; + + default: + virReportSystemError(-err->error, + _("error during virtual port configuration of %s interface"), ifname); + rc = -1; + } + break; + + case NLMSG_DONE: + break; + + default: + goto malformed_resp; + } + + VIR_FREE(recvbuf); + + return rc; + +malformed_resp: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("malformed netlink response message")); + VIR_FREE(recvbuf); + return -1; + +buffer_too_small: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("internal buffer is too small")); + return -1; +} + + +static int +doPortProfileOpCommon(bool multicast, + const char *ifname, int ifindex, + const char *profileId, + struct ifla_port_vsi *portVsi, + const unsigned char *instanceId, + const unsigned char *hostUUID, + int32_t vf, + uint8_t op) +{ + int rc; + char *recvbuf = NULL; + struct nlattr *tb[IFLA_MAX + 1]; + int repeats = 16; + uint16_t status; + + rc = doPortProfileOpSetLink(multicast, + ifname, ifindex, + profileId, + portVsi, + instanceId, + hostUUID, + vf, + op); + + if (rc != 0) { + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("sending of PortProfileRequest failed.\n")); + return rc; + } + + if (!multicast) { + while (--repeats) { + rc = link_dump(ifindex, ifname, tb, &recvbuf); + if (rc) + goto err_exit; + rc = getPortProfileStatus(tb, vf, &status); + if (rc == 0) { + if (status == PORT_PROFILE_RESPONSE_SUCCESS || + status == PORT_VDP_RESPONSE_SUCCESS) + break; + if (status != PORT_PROFILE_RESPONSE_INPROGRESS) + rc = 1; + } + usleep(125000); + + VIR_FREE(recvbuf); + } + } + +err_exit: + VIR_FREE(recvbuf); + + return rc; +} + +# endif /* IFLA_PORT_MAX */ + +static int +doPortProfileOp8021Qbg(const char *ifname, + const virVirtualPortProfileDefPtr virtPort, + int32_t vf, + enum virVirtualPortOp virtPortOp) +{ + int rc; + +# ifndef IFLA_VF_PORT_MAX + + (void)ifname; + (void)virtPort; + (void)vf; + (void)virtPortOp; + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Kernel VF Port support was missing at compile time.")); + rc = 1; +# else /* IFLA_VF_PORT_MAX */ + + int op = PORT_REQUEST_ASSOCIATE; + struct ifla_port_vsi portVsi = { + .vsi_mgr_id = virtPort->u.virtPort8021Qbg.managerID, + .vsi_type_version = virtPort->u.virtPort8021Qbg.typeIDVersion, + }; + bool multicast = true; + int ifindex; + + if (ifaceGetIndex(true, ifname, &ifindex) != 0) { + rc = 1; + goto err_exit; + } + + portVsi.vsi_type_id[2] = virtPort->u.virtPort8021Qbg.typeID >> 16; + portVsi.vsi_type_id[1] = virtPort->u.virtPort8021Qbg.typeID >> 8; + portVsi.vsi_type_id[0] = virtPort->u.virtPort8021Qbg.typeID; + + switch (virtPortOp) { + case ASSOCIATE: + op = PORT_REQUEST_ASSOCIATE; + break; + case DISASSOCIATE: + op = PORT_REQUEST_DISASSOCIATE; + break; + default: + macvtapError(VIR_ERR_INTERNAL_ERROR, + _("operation type %d not supported"), op); + rc = 1; + goto err_exit; + } + + rc = doPortProfileOpCommon(multicast, NULL, ifindex, + NULL, + &portVsi, + virtPort->u.virtPort8021Qbg.instanceID, + NULL, + vf, + op); + +err_exit: + +# endif /* IFLA_VF_PORT_MAX */ + + return rc; +} + + +static int +doPortProfileOp8021Qbh(const char *ifname, + const virVirtualPortProfileDefPtr virtPort, + int32_t vf, + const unsigned char *host_uuid, + const unsigned char *vm_uuid, + enum virVirtualPortOp virtPortOp) +{ + int rc; + +# ifndef IFLA_VF_PORT_MAX + + (void)ifname; + (void)virtPort; + (void)host_uuid; + (void)vm_uuid; + (void)virtPortOp; + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Kernel VF Port support was missing at compile time.")); + rc = 1; + +# else /* IFLA_VF_PORT_MAX */ + + int op = PORT_REQUEST_ASSOCIATE; + bool multicast = false; + int ifindex; + + if (ifaceGetIndex(true, ifname, &ifindex) != 0) { + rc = 1; + goto err_exit; + } + + switch (virtPortOp) { + case ASSOCIATE: + op = PORT_REQUEST_ASSOCIATE; + break; + case DISASSOCIATE: + op = PORT_REQUEST_DISASSOCIATE; + break; + default: + macvtapError(VIR_ERR_INTERNAL_ERROR, + _("operation type %d not supported"), op); + rc = 1; + goto err_exit; + } + + rc = doPortProfileOpCommon(multicast, ifname, ifindex, + virtPort->u.virtPort8021Qbh.profileID, + NULL, + vm_uuid, + host_uuid, + vf, + op); + + switch (virtPortOp) { + case ASSOCIATE: + ifaceUp(ifname); + break; + case DISASSOCIATE: + ifaceDown(ifname); + break; + } + +err_exit: + +# endif /* IFLA_VF_PORT_MAX */ + + return rc; +} + +static void +getPhysfn(const char *linkdev, + int32_t *vf, + char **physfndev) +{ + bool virtfn = false; + + if (virtfn) { + + // XXX: if linkdev is SR-IOV VF, then set vf = VF index + // XXX: and set linkdev = PF device + // XXX: need to use get_physical_function_linux() or + // XXX: something like that to get PF + // XXX: device and figure out VF index + + } else { + + /* Not SR-IOV VF: physfndev is linkdev and VF index + * refers to linkdev self + */ + + *vf = PORT_SELF_VF; + *physfndev = (char *)linkdev; + } +} /** * associatePortProfile * * @macvtap_ifname: The name of the macvtap device + * @linkdev: The link device in case of macvtap * @virtPort: pointer to the object holding port profile parameters - * @vf: virtual function number, -1 if to be ignored * @vmuuid : the UUID of the virtual machine + * @hostuuid : the UUID of the host machine * * Associate a port on a swtich with a profile. This function * may notify a kernel driver or an external daemon to run @@ -734,15 +1463,19 @@ delMacvtap(virDomainNetDefPtr net) */ static int associatePortProfileId(const char *macvtap_ifname, + const char *linkdev, const virVirtualPortProfileDefPtr virtPort, - int vf, - const unsigned char *vmuuid) + const unsigned char *vmuuid, + const unsigned char *hostuuid) { + char *physfndev; + int32_t vf; int rc = 0; + VIR_DEBUG("Associating port profile '%p' on link device '%s'", virtPort, macvtap_ifname); - (void)vf; - (void)vmuuid; + + getPhysfn(linkdev, &vf, &physfndev); switch (virtPort->virtPortType) { case VIR_VIRTUALPORT_NONE: @@ -750,11 +1483,14 @@ associatePortProfileId(const char *macvtap_ifname, break; case VIR_VIRTUALPORT_8021QBG: - + rc = doPortProfileOp8021Qbg(macvtap_ifname, virtPort, vf, + ASSOCIATE); break; case VIR_VIRTUALPORT_8021QBH: - + rc = doPortProfileOp8021Qbh(physfndev, virtPort, vf, + hostuuid, vmuuid, + ASSOCIATE); break; } @@ -766,6 +1502,7 @@ associatePortProfileId(const char *macvtap_ifname, * disassociatePortProfile * * @macvtap_ifname: The name of the macvtap device + * @linkdev: The link device in case of macvtap * @virtPort: point to object holding port profile parameters * * Returns 0 in case of success, != 0 otherwise with error @@ -773,25 +1510,36 @@ associatePortProfileId(const char *macvtap_ifname, */ static int disassociatePortProfileId(const char *macvtap_ifname, + const char *linkdev, const virVirtualPortProfileDefPtr virtPort) { + char *physfndev; + int32_t vf; int rc = 0; + VIR_DEBUG("Disassociating port profile id '%p' on link device '%s' ", virtPort, macvtap_ifname); + getPhysfn(linkdev, &vf, &physfndev); + switch (virtPort->virtPortType) { case VIR_VIRTUALPORT_NONE: case VIR_VIRTUALPORT_TYPE_LAST: break; case VIR_VIRTUALPORT_8021QBG: - + rc = doPortProfileOp8021Qbg(macvtap_ifname, virtPort, vf, + DISASSOCIATE); break; case VIR_VIRTUALPORT_8021QBH: - + rc = doPortProfileOp8021Qbh(physfndev, virtPort, vf, + NULL, NULL, + DISASSOCIATE); break; } return rc; } + +#endif

3 2

[libvirt] [PATCH v2] Add host UUID (to libvirt capabilities)
by Stefan Berger 24 May '10

24 May '10

This patch adds the host UUID (to the capabilities of libvirt). The user may provide it in libvirtd.conf overriding whatever sysfs may return. If none or no valid UUID is provided in libvirtd.conf, reading the UUID from sysfs is attempted. If that function doesn't provide a valid (not all digits may be equal), generate a temporary one. virSetHostUUIDStr() should be called first with the UUID read from libvirtd.conf, but may only be called once. Subsequently the functions virGetHostUUID[Str]() can be called to get the UUID of the host. Changes from V1 to V2: - addressing comments from Daniel Berrange: - rewrite/ code to get the UUID from 2 possible sysfs files - got rid of dmidecide dependency - call the newly added virGetHostUUID() function in udevGetDMIData() to get the UUID of the host ( even if it's just a temporary UUID ) Besides that, this patch - adds uuid to the capabilties XML schema - displays the UUID in in 'virsh capabilities' - adds 3 public functions to uuid.h for setting and getting the UUID of the host This patch contains recycled code from Scott Feldman (getDMISystemUUID()). Signed-off-by: Stefan Berger <stefanb(a)us.ibm.com> --- daemon/libvirtd.c | 5 + src/conf/capabilities.c | 4 + src/util/uuid.c | 126 ++++++++++++++++++++++++++++++++++++++++++++++++ src/util/uuid.h | 4 + 4 files changed, 139 insertions(+) Index: libvirt-acl/daemon/libvirtd.c =================================================================== --- libvirt-acl.orig/daemon/libvirtd.c +++ libvirt-acl/daemon/libvirtd.c @@ -57,6 +57,7 @@ #include "dispatch.h" #include "util.h" +#include "uuid.h" #include "remote_driver.h" #include "conf.h" #include "event.h" @@ -2718,6 +2719,7 @@ remoteReadConfigFile (struct qemud_serve char *unix_sock_rw_perms = NULL; char *unix_sock_group = NULL; char *buf = NULL; + char *host_uuid = NULL; #if HAVE_POLKIT /* Change the default back to no auth for non-root */ @@ -2840,6 +2842,10 @@ remoteReadConfigFile (struct qemud_serve GET_CONF_INT (conf, filename, max_requests); GET_CONF_INT (conf, filename, max_client_requests); + GET_CONF_STR (conf, filename, host_uuid); + virSetHostUUIDStr(host_uuid); + VIR_FREE(host_uuid); + virConfFree (conf); return 0; Index: libvirt-acl/src/util/uuid.h =================================================================== --- libvirt-acl.orig/src/util/uuid.h +++ libvirt-acl/src/util/uuid.h @@ -22,6 +22,10 @@ #ifndef __VIR_UUID_H__ # define __VIR_UUID_H__ +int virSetHostUUIDStr(const char *host_uuid); +int virGetHostUUID(unsigned char *host_uuid); +int virGetHostUUIDStr(char *host_uuid); + int virUUIDGenerate(unsigned char *uuid); int virUUIDParse(const char *uuidstr, Index: libvirt-acl/src/util/uuid.c =================================================================== --- libvirt-acl.orig/src/util/uuid.c +++ libvirt-acl/src/util/uuid.c @@ -38,11 +38,14 @@ #include "util.h" #include "virterror_internal.h" #include "logging.h" +#include "memory.h" #ifndef ENODATA # define ENODATA EIO #endif +static unsigned char host_uuid[VIR_UUID_BUFLEN]; + static int virUUIDGenerateRandomBytes(unsigned char *buf, int buflen) @@ -208,3 +211,134 @@ void virUUIDFormat(const unsigned char * uuid[12], uuid[13], uuid[14], uuid[15]); uuidstr[VIR_UUID_STRING_BUFLEN-1] = '\0'; } + + + +/** + * isValidHostUUID + * + * @uuid: The UUID to test + * + * Do some basic tests to check whether the given UUID is + * valid as a host UUID. + * Basic tests: + * - Not all of the digits may be equal + */ +static int +isValidHostUUID(unsigned char *uuid) +{ + unsigned int i, ctr = 1; + unsigned char c; + + if (!uuid) + return 0; + + c = uuid[0]; + + for (i = 1; i < VIR_UUID_BUFLEN; i++) + if (uuid[i] == c) + ctr++; + + return (ctr != VIR_UUID_BUFLEN); +} + +static int +getDMISystemUUID(char *uuid, int len) +{ + unsigned int i = 0; + const char *paths[] = { + "/sys/devices/virtual/dmi/id/product_uuid", + "/sys/class/dmi/id/product_uuid", + NULL + }; + + while (paths[i]) { + int fd = open(paths[i], O_RDONLY); + if (fd > 0) { + if (saferead(fd, uuid, len) == len) { + close(fd); + return 0; + } + close(fd); + } + i++; + } + + return -1; +} + + +/** + * setHostUUID + * + * @host_uuid: UUID that the host is supposed to have + * + * Set the UUID of the host if it hasn't been set, yet + * Returns 0 in case of success, an error code in case of error. + */ +int +virSetHostUUIDStr(const char *uuid) +{ + char dmiuuid[VIR_UUID_STRING_BUFLEN]; + + if (isValidHostUUID(host_uuid)) + return EEXIST; + + if (!uuid) { + if (!getDMISystemUUID(dmiuuid, sizeof(dmiuuid))) { + if (!virUUIDParse(dmiuuid, host_uuid)) { + return 0; + } + } + } else { + if (!virUUIDParse(uuid, host_uuid)) + return 0; + } + + if (!isValidHostUUID(host_uuid)) + return virUUIDGenerate(host_uuid); + return 0; +} + +/** + * getHostUUID: + * + * @host_uuid: memory to store the host_uuid into + * + * Get the UUID of the host. Returns 0 in case of success, + * an error code otherwise. + * Returns 0 in case of success, an error code in case of error. + */ +int virGetHostUUID(unsigned char *uuid) +{ + int ret = 0; + + if (!isValidHostUUID(host_uuid)) + ret = virSetHostUUIDStr(NULL); + + memcpy(uuid, host_uuid, sizeof(host_uuid)); + + return ret; +} + + +/** + * getHostUUID: + * + * @host_uuid: memory to store the host_uuid into + * + * Get the UUID of the host. Returns 0 in case of success, + * an error code otherwise. + * Returns 0 in case of success, an error code in case of error. + */ +int virGetHostUUIDStr(char *uuid) +{ + int ret = 0; + + if (!isValidHostUUID(host_uuid)) + ret = virSetHostUUIDStr(NULL); + + virUUIDFormat(host_uuid, uuid); + + return ret; +} Index: libvirt-acl/src/conf/capabilities.c =================================================================== --- libvirt-acl.orig/src/conf/capabilities.c +++ libvirt-acl/src/conf/capabilities.c @@ -27,6 +27,7 @@ #include "buf.h" #include "memory.h" #include "util.h" +#include "uuid.h" #include "cpu_conf.h" /** @@ -662,9 +663,12 @@ virCapabilitiesFormatXML(virCapsPtr caps { virBuffer xml = VIR_BUFFER_INITIALIZER; int i, j, k; + char host_uuid[VIR_UUID_STRING_BUFLEN]; + virGetHostUUIDStr(host_uuid); virBufferAddLit(&xml, "<capabilities>\n\n"); virBufferAddLit(&xml, " <host>\n"); + virBufferVSprintf(&xml," <uuid>%s</uuid>\n", host_uuid); virBufferAddLit(&xml, " <cpu>\n"); virBufferVSprintf(&xml, " <arch>%s</arch>\n", caps->host.arch); Index: libvirt-acl/docs/schemas/capability.rng =================================================================== --- libvirt-acl.orig/docs/schemas/capability.rng +++ libvirt-acl/docs/schemas/capability.rng @@ -18,6 +18,9 @@ <define name='hostcaps'> <element name='host'> + <element name='uuid'> + <ref name='UUID'/> + </element> <element name='cpu'> <element name='arch'> <ref name='archnames'/> @@ -349,4 +352,15 @@ <param name='pattern'>[a-zA-Z0-9\-_]+</param> </data> </define> + + <define name="UUID"> + <choice> + <data type="string"> + <param name="pattern">[a-fA-F0-9]{32}</param> + </data> + <data type="string"> + <param name="pattern">[a-fA-F0-9]{8}\-([a-fA-F0-9]{4}\-){3}[a-fA-F0-9]{12}</param> + </data> + </choice> + </define> </grammar> Index: libvirt-acl/src/libvirt_private.syms =================================================================== --- libvirt-acl.orig/src/libvirt_private.syms +++ libvirt-acl/src/libvirt_private.syms @@ -708,6 +708,9 @@ usbDeviceFileIterate; virUUIDFormat; virUUIDGenerate; virUUIDParse; +virSetHostUUIDStr; +virGetHostUUID; +virGetHostUUIDStr; # virterror_internal.h Index: libvirt-acl/daemon/libvirtd.conf =================================================================== --- libvirt-acl.orig/daemon/libvirtd.conf +++ libvirt-acl/daemon/libvirtd.conf @@ -312,3 +312,12 @@ # e.g.: # log_outputs="3:syslog:libvirtd" # to log all warnings and errors to syslog under the libvirtd ident + +# UUID of the host: +# Provide the UUID of the host here in case the command +# 'dmidecode -s system-uuid' does not provide a valid uuid. In case +# 'dmidecode' does not provide a valid UUID and none is provided here, a +# temporary UUID will be generated. +# Keep the format of the example UUID below. + +#host_uuid = '8510b1a1-1afa-4da6-8111-785fae202c1d' Index: libvirt-acl/src/node_device/node_device_udev.c =================================================================== --- libvirt-acl.orig/src/node_device/node_device_udev.c +++ libvirt-acl/src/node_device/node_device_udev.c @@ -1473,12 +1473,8 @@ udevGetDMIData(union _virNodeDevCapData goto out; } - if (udevGetStringSysfsAttr(device, - "product_uuid", - &tmp) == PROPERTY_ERROR) { + if (virGetHostUUID(data->system.hardware.uuid)) goto out; - } - virUUIDParse(tmp, data->system.hardware.uuid); if (udevGetStringSysfsAttr(device, "bios_vendor",

4 5

[libvirt] [PATCH] build: fix cppi warnings
by Eric Blake 24 May '10

24 May '10

* src/util/bitmap.h (includes): Placate cppi. --- Pushing as obvious, to keep 'make syntax-check' happy. src/util/bitmap.h | 6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-) diff --git a/src/util/bitmap.h b/src/util/bitmap.h index be897ff..08515d1 100644 --- a/src/util/bitmap.h +++ b/src/util/bitmap.h @@ -23,10 +23,10 @@ #ifndef __BITMAP_H__ # define __BITMAP_H__ -#include "internal.h" +# include "internal.h" -#include <stdbool.h> -#include <sys/types.h> +# include <stdbool.h> +# include <sys/types.h> typedef struct _virBitmap virBitmap; -- 1.7.0.1

2 1

[libvirt] LIbvirt Java Bindings 0.4.5 Released
by Bryan Kearney 24 May '10

24 May '10

I have just released 0.4.5 of the libvirt java bindings. This release rings the supported libvirt API up to 0.8.1. You can access the latest version via the following means: Source Code: http://www.libvirt.org/git/?p=libvirt-java.git;a=summary Bundled Source (tarball and SRPM): http://libvirt.org/sources/java/ Maven: http://libvirt.org/maven2/. They should hit the central repo in a day or two. RPMS are making their way through the Fedora F13 and Rawhide build systems Thank you! -- bk

1 0

[libvirt] [PATCH v2] storage: Combine some duplicate code
by Cole Robinson 24 May '10

24 May '10

Volume detection in the scsi backend was duplicating code already present in storage_backend.c. Let's drop the duplicate code. Also, change the shared function name to be less generic, and remove some error squashing in the other call site. v2: Rebased around other storage changes Signed-off-by: Cole Robinson <crobinso(a)redhat.com> --- src/storage/storage_backend.c | 4 ++-- src/storage/storage_backend.h | 4 ++-- src/storage/storage_backend_mpath.c | 2 +- src/storage/storage_backend_scsi.c | 32 ++------------------------------ 4 files changed, 7 insertions(+), 35 deletions(-) diff --git a/src/storage/storage_backend.c b/src/storage/storage_backend.c index 7df61cd..f4124df 100644 --- a/src/storage/storage_backend.c +++ b/src/storage/storage_backend.c @@ -1050,8 +1050,8 @@ static struct diskType const disk_types[] = { int -virStorageBackendUpdateVolTargetFormatFD(virStorageVolTargetPtr target, - int fd) +virStorageBackendDetectBlockVolFormatFD(virStorageVolTargetPtr target, + int fd) { int i; off_t start; diff --git a/src/storage/storage_backend.h b/src/storage/storage_backend.h index 766f374..907c4bc 100644 --- a/src/storage/storage_backend.h +++ b/src/storage/storage_backend.h @@ -92,8 +92,8 @@ int virStorageBackendUpdateVolTargetInfoFD(virStorageVolTargetPtr target, unsigned long long *allocation, unsigned long long *capacity); int -virStorageBackendUpdateVolTargetFormatFD(virStorageVolTargetPtr target, - int fd); +virStorageBackendDetectBlockVolFormatFD(virStorageVolTargetPtr target, + int fd); char *virStorageBackendStablePath(virStoragePoolObjPtr pool, const char *devpath); diff --git a/src/storage/storage_backend_mpath.c b/src/storage/storage_backend_mpath.c index 78d6b31..8d0a92a 100644 --- a/src/storage/storage_backend_mpath.c +++ b/src/storage/storage_backend_mpath.c @@ -59,7 +59,7 @@ virStorageBackendMpathUpdateVolTargetInfo(virStorageVolTargetPtr target, capacity) < 0) goto out; - if (virStorageBackendUpdateVolTargetFormatFD(target, fd) < 0) + if (virStorageBackendDetectBlockVolFormatFD(target, fd) < 0) goto out; ret = 0; diff --git a/src/storage/storage_backend_scsi.c b/src/storage/storage_backend_scsi.c index cd01f93..40f4fd8 100644 --- a/src/storage/storage_backend_scsi.c +++ b/src/storage/storage_backend_scsi.c @@ -135,10 +135,7 @@ virStorageBackendSCSIUpdateVolTargetInfo(virStorageVolTargetPtr target, unsigned long long *allocation, unsigned long long *capacity) { - int fd, i, ret = -1; - off_t start; - unsigned char buffer[1024]; - ssize_t bytes; + int fd, ret = -1; if ((fd = open(target->path, O_RDONLY)) < 0) { virReportSystemError(errno, @@ -153,33 +150,8 @@ virStorageBackendSCSIUpdateVolTargetInfo(virStorageVolTargetPtr target, capacity) < 0) goto cleanup; - /* make sure to set the target format "unknown" to begin with */ - target->format = VIR_STORAGE_POOL_DISK_UNKNOWN; - - start = lseek(fd, 0, SEEK_SET); - if (start < 0) { - virReportSystemError(errno, - _("cannot seek to beginning of file '%s'"), - target->path); - goto cleanup; - } - bytes = saferead(fd, buffer, sizeof(buffer)); - if (bytes < 0) { - virReportSystemError(errno, - _("cannot read beginning of file '%s'"), - target->path); + if (virStorageBackendDetectBlockVolFormatFD(target, fd) < 0) goto cleanup; - } - - for (i = 0; disk_types[i].part_table_type != -1; i++) { - if (disk_types[i].offset + disk_types[i].length > bytes) - continue; - if (memcmp(buffer+disk_types[i].offset, &disk_types[i].magic, - disk_types[i].length) == 0) { - target->format = disk_types[i].part_table_type; - break; - } - } ret = 0; -- 1.6.6.1

2 2

[libvirt] [PATCH v2] storage: mpath: Clean up some error handling
by Cole Robinson 24 May '10

24 May '10

We were squashing error messages in a few cases. Recode to follow common ret = -1 convention. v2: Handle more error squashing issues further up in MakeNewVol and CreateVols. Use ret = -1 convention in MakeVols. Signed-off-by: Cole Robinson <crobinso(a)redhat.com> --- src/storage/storage_backend_mpath.c | 40 ++++++++++------------------------ 1 files changed, 12 insertions(+), 28 deletions(-) diff --git a/src/storage/storage_backend_mpath.c b/src/storage/storage_backend_mpath.c index 8318969..78d6b31 100644 --- a/src/storage/storage_backend_mpath.c +++ b/src/storage/storage_backend_mpath.c @@ -43,39 +43,26 @@ virStorageBackendMpathUpdateVolTargetInfo(virStorageVolTargetPtr target, unsigned long long *allocation, unsigned long long *capacity) { - int ret = 0; + int ret = -1; int fd = -1; if ((fd = open(target->path, O_RDONLY)) < 0) { virReportSystemError(errno, _("cannot open volume '%s'"), target->path); - ret = -1; goto out; } if (virStorageBackendUpdateVolTargetInfoFD(target, fd, allocation, - capacity) < 0) { - - virStorageReportError(VIR_ERR_INTERNAL_ERROR, - _("Failed to update volume target info for '%s'"), - target->path); - - ret = -1; + capacity) < 0) goto out; - } - if (virStorageBackendUpdateVolTargetFormatFD(target, fd) < 0) { - virStorageReportError(VIR_ERR_INTERNAL_ERROR, - _("Failed to update volume target format for '%s'"), - target->path); - - ret = -1; + if (virStorageBackendUpdateVolTargetFormatFD(target, fd) < 0) goto out; - } + ret = 0; out: if (fd != -1) { close(fd); @@ -112,10 +99,6 @@ virStorageBackendMpathNewVol(virStoragePoolObjPtr pool, if (virStorageBackendMpathUpdateVolTargetInfo(&vol->target, &vol->allocation, &vol->capacity) < 0) { - - virStorageReportError(VIR_ERR_INTERNAL_ERROR, - _("Failed to update volume for '%s'"), - vol->target.path); goto cleanup; } @@ -230,7 +213,7 @@ static int virStorageBackendCreateVols(virStoragePoolObjPtr pool, struct dm_names *names) { - int retval = 0, is_mpath = 0; + int retval = -1, is_mpath = 0; char *map_device = NULL; uint32_t minor = -1; @@ -238,7 +221,6 @@ virStorageBackendCreateVols(virStoragePoolObjPtr pool, is_mpath = virStorageBackendIsMultipath(names->name); if (is_mpath < 0) { - retval = -1; goto out; } @@ -246,18 +228,19 @@ virStorageBackendCreateVols(virStoragePoolObjPtr pool, if (virAsprintf(&map_device, "mapper/%s", names->name) < 0) { virReportOOMError(); - retval = -1; goto out; } if (virStorageBackendGetMinorNumber(names->name, &minor) < 0) { - retval = -1; + virStorageReportError(VIR_ERR_INTERNAL_ERROR, + _("Failed to get %s minor number"), + names->name); goto out; } - virStorageBackendMpathNewVol(pool, - minor, - map_device); + if (virStorageBackendMpathNewVol(pool, minor, map_device) < 0) { + goto out; + } VIR_FREE(map_device); } @@ -268,6 +251,7 @@ virStorageBackendCreateVols(virStoragePoolObjPtr pool, } while (names->next); + retval = 0; out: return retval; } -- 1.6.6.1

2 2

[libvirt] [PATCH] [DOCS] nwfilter: documentation
by Stefan Berger 24 May '10

24 May '10

This patch adds documentation of the nwfilter subsystem of libvirt to the existing (web) docs. Previous post with attached PDF of the docs is probably stuck in the mail filter of this list. Signed-off-by: Stefan Berger <stefanb(a)linux.vnet.ibm.com> --- docs/formatnwfilter.html.in | 1407 ++++++++++++++++++++++++++++++++++++++++++++ docs/sitemap.html.in | 6 2 files changed, 1413 insertions(+) Index: libvirt-acl/docs/sitemap.html.in =================================================================== --- libvirt-acl.orig/docs/sitemap.html.in +++ libvirt-acl/docs/sitemap.html.in @@ -97,6 +97,12 @@ <li> <a href="formatnetwork.html">Networks</a> <span>The virtual network XML format</span> + <ul> + <li> + <a href="formatnwfilter.html">Network Filtering</a> + <span>Network filter XML format</span> + </li> + </ul> </li> <li> <a href="formatstorage.html">Storage</a> Index: libvirt-acl/docs/formatnwfilter.html.in =================================================================== --- /dev/null +++ libvirt-acl/docs/formatnwfilter.html.in @@ -0,0 +1,1407 @@ +<html> + <body> + <h1>Network Filters</h1> + + <ul id="toc"> + </ul> + + <p> + This page provides an introduction to libvirt's network filters, + their goals, concepts and XML format. + </p> + + <h2><a name="goals">Goals and background</a></h2> + + <p> + The goal of the network filtering XML is to enable administrators + of virtualized system to configure and enforce network traffic + filtering rules on virtual + machines and manage the parameters of network traffic that + virtual machines + are allowed to send or receive. + The network traffic filtering rules are + applied on the host when a virtual machine is started. Since the + filtering rules + cannot be circumvented from within + the virtual machine, it makes them mandatory from the point of + view of a virtual machine user. + <br><br> + The network filter subsystem allows each virtual machine's network + traffic filtering rules to be configured individually on a per + interface basis. The rules are + applied on the host when the virtual machine is started and can be modified + while the virtual machine is running. The latter can be achieved by + modifying the XML description of a network filter. + <br><br> + Multiple virtual machines can make use of the same generic network filter. + When such a filter is modified, the network traffic filtering rules + of all running virtual machines that reference this filter are updated. + <br><br> + Network filtering support is available <span class="since">since 0.8.1 + (Qemu, KVM)</span> + </p> + + <h2><a name="nwfconcpts">Concepts</a></h2> + <p> + The network traffic filtering subsystem enables configuration + of network traffic filtering rules on individual network + interfaces that are configured for certain types of + network configurations. Supported network types are + </p> + <ul> + <li><code>network</code></li> + <li><code>ethernet</code> -- must be used in bridging mode</li> + <li><code>bridge</code></li> + <li><code>direct</code> -- only protocols mac, arp, ip and ipv6 + can be filtered</li> + </ul> + <p> + The interface XML is used to reference a top-level filter. In the + following example, the interface description references + the filter <code>clean-traffic</code>. + </p> +<pre> + ... + <devices> + <interface type='bridge'> + <mac address='00:16:3e:5d:c7:9e'/> + <filterref filter='clean-traffic'/> + </interface> + </devices> + ...</pre> + + <p> + Network filters are written in XML and may either contain references + to other filters, contain rules for traffic filtering or can + hold a combination of both. The above referenced filter + <code>clean-traffic </code> is a filter that for example only + contains references to + other filters and no actual filtering rules. Since references to + other filters can be used, a <i>tree</i> of filters can be built. + The <code>clean-traffic</code> filter can be viewed using the + command <code>virsh nwfilter-dumpxml clean-traffic</code>. + <br><br> + As previously mentioned, a single network filter can be referenced + by multiple virtual machines. Since interfaces will typically + have individual parameters associated with their respective traffic + filtering rules, the rules described in a filter XML can + be parameterized with variables. In this case, the variable name + is used in the filter XML and the name and value are provided at the + place where the filter is referenced. In the + following example, the interface description has been extended with + the parameter <code>IP</code> and a dotted IP address as value. + </p> +<pre> + ... + <devices> + <interface type='bridge'> + <mac address='00:16:3e:5d:c7:9e'/> + <filterref filter='clean-traffic'> + <parameter name='IP' value='10.0.0.1'/> + </filterref> + </interface> + </devices> + ...</pre> + + <p> + In this particular example, the <code>clean-traffic</code> network + traffic filter will be instantiated with the IP address parameter + 10.0.0.1 and enforce that the traffic from this interface will + always be using 10.0.0.1 as the source IP address, which is + one of the purposes of this particular filter. + <br><br> + </p> + + <h3><a name="nwfconcptsvars">Usage of variables in filters</a></h3> + <p> + + Two variables names have so far been reserved for usage by the + network traffic filtering subsystem: <code>MAC</code> and + <code>IP</code>. + <br><br> + <code>MAC</code> is the MAC address of the + network interface. A filtering rule that references this variable + will automatically be instantiated with the MAC address of the + interface. This works without the user having to explicitly provide + the MAC parameter. Even though it is possible to specify the MAC + parameter similar to the IP parameter above, it is discouraged + since libvirt knows what MAC address an interface will be using. + <br><br> + The parameter <code>IP</code> represents the IP address + that the operating system inside the virtual machine is expected + to use on the given interface. The <code>IP</code> parameter + is special in so far as the libvirt daemon will try to determine + the IP address (and thus the IP parameter's value) that is being + used on an interface if the parameter + is not explicitly provided but referenced. + For current limitations on IP address detection, consult the + <a href="#nwflimits">section on limitations</a> on how to use this + feature and what to expect when using it. + <br><br> + The following is the XML description of the network filer + <code>no-arp-spoofing</code>. It serves as an example for + a network filter XML referencing the <code>MAC</code> and + <code>IP</code> parameters. This particular filter is referenced by the + <code>clean-traffic</code> filter. + </p> +<pre> +<filter name='no-arp-spoofing' chain='arp'> + <uuid>f88f1932-debf-4aa1-9fbe-f10d3aa4bc95</uuid> + <rule action='drop' direction='out' priority='300'> + <mac match='no' srcmacaddr='$MAC'/> + </rule> + <rule action='drop' direction='out' priority='350'> + <arp match='no' arpsrcmacaddr='$MAC'/> + </rule> + <rule action='drop' direction='out' priority='400'> + <arp match='no' arpsrcipaddr='$IP'/> + </rule> + <rule action='drop' direction='in' priority='450'> + <arp opcode='Reply'/> + <arp match='no' arpdstmacaddr='$MAC'/> + </rule> + <rule action='drop' direction='in' priority='500'> + <arp match='no' arpdstipaddr='$IP'/> + </rule> + <rule action='accept' direction='inout' priority='600'> + <arp opcode='Request'/> + </rule> + <rule action='accept' direction='inout' priority='650'> + <arp opcode='Reply'/> + </rule> + <rule action='drop' direction='inout' priority='1000'/> +</filter> +</pre> + + <p> + Note that referenced variables are always prefixed with the + $ (dollar) sign. The format of the value of a variable + must be of the type expected by the filter attribute in the + XML. In the above example, the <code>IP</code> parameter + must hold a dotted IP address in decimal numbers format. + Failure to provide the correct + value type will result in the filter not being instantiatable + and will prevent a virtual machine from starting or the + interface from attaching when hotplugging is used. The types + that are expected for each XML attribute are shown + below. + </p> + + <h2><a name="nwfelems">Element and attribute overview</a></h2> + + <p> + The root element required for all network filters is + named <code>filter</code> with two possible attributes. The + <code>name</code> attribute provides a unique name of the + given filter. The <code>chain</code> attribute is optional but + allows certain filters to be better organized for more efficient + processing by the firewall subsystem of the underlying host. + Currently the system only supports the chains <code>root, + ipv4, ipv6, arp and rarp</code>. + </p> + + <h3><a name="nwfelemsRefs">References to other filers</a></h3> + <p> + Any filter may hold references to other filters. Individual + filters may be referenced multiple times in a filter tree but + references between filters must not introduce loops (directed + acyclic graph). + <br><br> + The following shows the XML of the <code>clean-traffic</code> + network filter referencing several other filters. + </p> +<pre> +<filter name='clean-traffic'> + <uuid>6ef53069-ba34-94a0-d33d-17751b9b8cb1</uuid> + <filterref filter='no-mac-spoofing'/> + <filterref filter='no-ip-spoofing'/> + <filterref filter='allow-incoming-ipv4'/> + <filterref filter='no-arp-spoofing'/> + <filterref filter='no-other-l2-traffic'/> + <filterref filter='qemu-announce-self'/> +</filter> +</pre> + + <p> + To reference another filter, the XML node <code>filterref</code> + needs to be provided inside a <code>filter</code> node. This + node must have the attribute <code>filter</code> whose value contains + the name of the filter to be referenced. + <br><br> + New network filters can be defined at any time and + may contain references to network filters that are + not known to libvirt, yet. However, once a virtual machine + is started or a network interface + referencing a filter is to be hotplugged, all network filters + in the filter tree must be available. Otherwise the virtual + machine will not start or the network interface cannot be + attached. + </p> + + <h3><a name="nwfelemsRules">Filter rules</a></h3> + <p> + The following XML shows a simple example of a network + traffic filter implementing a rule to drop traffic if + the IP address (provided through the value of the + variable IP) in an outgoing IP packet is not the expected + one, thus preventing IP address spoofing by the VM. + </p> +<pre> +<filter name='no-ip-spoofing' chain='ipv4'> + <uuid>fce8ae33-e69e-83bf-262e-30786c1f8072</uuid> + <rule action='drop' direction='out' priority='500'> + <ip match='no' srcipaddr='$IP'/> + </rule> +</filter> +</pre> + + <p> + A traffic filtering rule starts with the <code>rule</code> + node. This node may contain up to three attributes + </p> + <ul> + <li> + action -- mandatory; must either be <code>drop</code> or <code>accept</code> if + the evaluation of the filtering rule is supposed to drop or accept + a packet + </li> + <li> + direction -- mandatory; must either be <code>in</code>, <code>out</code> or + <code>inout</code> if the rule is for incoming, + outgoing or incoming-and-outgoing traffic + </li> + <li> + priority -- optional; the priority of the rule controls the order in + which the rule will be instantiated relative to other rules. + Rules with lower value will be instantiated and therefore evaluated + before rules with higher value. + Valid values are in the range of 0 to 1000. If this attribute is not + provided, the value 500 will automatically be assigned. + </li> + </ul> + <p> + The above example indicates that the traffic of type <code>ip</code> + will be asscociated with the chain 'ipv4' and the rule will have + priority 500. If for example another filter is referenced whose + traffic of type <code>ip</code> is also associated with the chain + 'ipv4' then that filter's rules will be ordered relative to the priority + 500 of the shown rule. + <br><br> + A rule may contain a single rule for filtering of traffic. The + above example shows that traffic of type <code>ip</code> is to be + filtered. + </p> + + <h4><a name="nwfelemsRulesProto">Supported protocols</a></h4> + <p> + The following sections enumerate the list of protocols that + are supported by the network filtering subsystem. The + type of traffic a rule is supposed to filter on is provided + in the <code>rule</code> node as a nested node. Depending + on the traffic type a rule is filtering, the attributes are + different. The above example showed the single + attribute <code>srcipaddr</code> that is valid inside the + <code>ip</code> traffic filtering node. The following sections + show what attributes are valid and what type of data they are + expecting. The following datatypes are available: + </p> + <ul> + <li>UINT8 : 8 bit integer; range 0-255</li> + <li>UINT16: 16 bit integer; range 0-65535</li> + <li>MAC_ADDR: MAC adrress in dotted decimal format, i.e., 00:11:22:33:44:55</li> + <li>MAC_MASK: MAC address mask in MAC address format, i.e., FF:FF:FF:FC:00:00</li> + <li>IP_ADDR: IP address in dotted decimal format, i.e., 10.1.2.3</li> + <li>IP_MASK: IP address mask in either dotted decimal format (255.255.248.0) or CIDR mask (0-32)</li> + <li>IPV6_ADDR: IPv6 address in numbers format, i.e., FFFF::1</li> + <li>IPV6_MASK: IPv6 mask in numbers format (FFFF:FFFF:FC00::) or CIDR mask (0-128)</li> + <li>STRING: A string</li> + </ul> + <p> + <br><br> + Every attribute except for those of type IP_MASK or IPV6_MASK can + be negated using the <code>match</code> + attribute with value <code>no</code>. Multiple negated attributes + may be grouped together. The following + XML fragment shows such an example using abstract attributes. + </p> +<pre> +[...] + <rule action='drop' direction='in'> + <protocol match='no' attribute1='value1' attribute2='value2'/> + <protocol attribute3='value3'/> + </rule> +[...] +</pre> + <p> + Rules perform a logical AND evaluation on all values of the given + protocol attributes. Thus, if a single attribute's value does not match + the one given in the rule, the whole rule will be skipped during + evaluation. Therefore, in the above example incoming traffic + will only be dropped if + the protocol property attribute1 does not match value1 AND + the protocol property attribute2 does not match value2 AND + the protocol property attribute3 matches value3. + <br><br> + </p> + + + <h5><a name="nwfelemsRulesProtoMAC">MAC (Ethernet)</a></h5> + <p> + Protocol ID: <code>mac</code> + <br> + Note: Rules of this type should go into the <code>root</code> chain. + </p> + <table class="top_table"> + <tr> + <th> Attribute </th> + <th> Datatype </th> + <th> Semantics </th> + </tr> + <tr> + <td>srcmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of sender</td> + </tr> + <tr> + <td>srcmacmask</td> + <td>MAC_MASK</td> + <td>Mask applied to MAC address of sender</td> + </tr> + <tr> + <td>dstmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of destination</td> + </tr> + <tr> + <td>dstmacmask</td> + <td>MAC_MASK</td> + <td>Mask applied to MAC address of destination</td> + </tr> + <tr> + <td>protocolid</td> + <td>UINT16 (0x600-0xffff), STRING</td> + <td>Layer 3 protocol ID</td> + </tr> + </table> + <p> + Valid Strings for <code>protocolid</code> are: arp, rarp, ipv4, ipv6 + <br><br> + Example: <pre><mac match='no' srcmacaddr='$MAC'/></pre> + <br><br> + </p> + + <h5><a name="nwfelemsRulesProtoARP">ARP/RARP</a></h5> + <p> + Protocol ID: <code>arp</code> or <code>rarp</code> + <br> + Note: Rules of this type should either go into the + <code>root</code> or <code>arp/rarp</code> chain. + </p> + <table class="top_table"> + <tr> + <th> Attribute </th> + <th> Datatype </th> + <th> Semantics </th> + </tr> + <tr> + <td>srcmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of sender</td> + </tr> + <tr> + <td>srcmacmask</td> + <td>MAC_MASK</td> + <td>Mask applied to MAC address of sender</td> + </tr> + <tr> + <td>dstmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of destination</td> + </tr> + <tr> + <td>dstmacmask</td> + <td>MAC_MASK</td> + <td>Mask applied to MAC address of destination</td> + </tr> + <tr> + <td>hwtype</td> + <td>UINT16</td> + <td>Hardware type</td> + </tr> + <tr> + <td>protocoltype</td> + <td>UINT16</td> + <td>Protocol type</td> + </tr> + <tr> + <td>opcode</td> + <td>UINT16, STRING</td> + <td>Opcode</td> + </tr> + <tr> + <td>arpsrcmacaddr</td> + <td>MAC_ADDR</td> + <td>Source MAC address in ARP/RARP packet</td> + </tr> + <tr> + <td>arpdstmacaddr</td> + <td>MAC_ADDR</td> + <td>Destination MAC address in ARP/RARP packet</td> + </tr> + <tr> + <td>arpsrcipaddr</td> + <td>IP_ADDR</td> + <td>Source IP address in ARP/RARP packet</td> + </tr> + <tr> + <td>arpdstipaddr</td> + <td>IP_ADDR</td> + <td>Destination IP address in ARP/RARP packet</td> + </tr> + </table> + <p> + Valid strings for the <code>Opcode</code> field are: + Request, Reply, Request_Reverse, Reply_Reverse, DRARP_Request, + DRARP_Reply, DRARP_Error, InARP_Request, ARP_NAK + <br><br> + </p> + + <h5><a name="nwfelemsRulesProtoIP">IPv4</a></h5> + <p> + Protocol ID: <code>ip</code> + Note: Rules of this type should either go into the + <code>root</code> or <code>ipv4</code> chain. + </p> + <table class="top_table"> + <tr> + <th> Attribute </th> + <th> Datatype </th> + <th> Semantics </th> + </tr> + <tr> + <td>srcmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of sender</td> + </tr> + <tr> + <td>srcmacmask</td> + <td>MAC_MASK</td> + <td>Mask applied to MAC address of sender</td> + </tr> + <tr> + <td>dstmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of destination</td> + </tr> + <tr> + <td>dstmacmask</td> + <td>MAC_MASK</td> + <td>Mask applied to MAC address of destination</td> + </tr> + <tr> + <td>srcipaddr</td> + <td>IP_ADDR</td> + <td>Source IP address</td> + </tr> + <tr> + <td>srcipmask</td> + <td>IP_MASK</td> + <td>Mask applied to source IP address</td> + </tr> + <tr> + <td>dstipaddr</td> + <td>IP_ADDR</td> + <td>Destination IP address</td> + </tr> + <tr> + <td>dstipmask</td> + <td>IP_MASK</td> + <td>Mask applied to destination IP address</td> + </tr> + <tr> + <td>protocol</td> + <td>UINT8, STRING</td> + <td>Layer 4 protocol identifier</td> + </tr> + <tr> + <td>srcportstart</td> + <td>UINT16</td> + <td>Start of range of valid source ports; requires <code>protocol</code></td> + </tr> + <tr> + <td>srcportend</td> + <td>UINT16</td> + <td>End of range of valid source ports; requires <code>protocol</code></td> + </tr> + <tr> + <td>dstportstart</td> + <td>UINT16</td> + <td>Start of range of valid destination ports; requires <code>protocol</code></td> + </tr> + <tr> + <td>dstportend</td> + <td>UINT16</td> + <td>End of range of valid destination ports; requires <code>protocol</code></td> + </tr> + </table> + <p> + Valid strings for <code>protocol</code> are: + tcp, udp, udplite, esp, ah, icmp, igmp, sctp + <br><br> + </p> + + + <h5><a name="nwfelemsRulesProtoIPv6">IPv6</a></h5> + <p> + Protocol ID: <code>ipv6</code> + Note: Rules of this type should either go into the + <code>root</code> or <code>ipv6</code> chain. + </p> + <table class="top_table"> + <tr> + <th> Attribute </th> + <th> Datatype </th> + <th> Semantics </th> + </tr> + <tr> + <td>srcmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of sender</td> + </tr> + <tr> + <td>srcmacmask</td> + <td>MAC_MASK</td> + <td>Mask applied to MAC address of sender</td> + </tr> + <tr> + <td>dstmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of destination</td> + </tr> + <tr> + <td>dstmacmask</td> + <td>MAC_MASK</td> + <td>Mask applied to MAC address of destination</td> + </tr> + <tr> + <td>srcipaddr</td> + <td>IPV6_ADDR</td> + <td>Source IPv6 address</td> + </tr> + <tr> + <td>srcipmask</td> + <td>IPV6_MASK</td> + <td>Mask applied to source IPv6 address</td> + </tr> + <tr> + <td>dstipaddr</td> + <td>IPV6_ADDR</td> + <td>Destination IPv6 address</td> + </tr> + <tr> + <td>dstipmask</td> + <td>IPV6_MASK</td> + <td>Mask applied to destination IPv6 address</td> + </tr> + <tr> + <td>protocol</td> + <td>UINT8</td> + <td>Layer 4 protocol identifier</td> + </tr> + <tr> + <td>srcportstart</td> + <td>UINT16</td> + <td>Start of range of valid source ports; requires <code>protocol</code></td> + </tr> + <tr> + <td>srcportend</td> + <td>UINT16</td> + <td>End of range of valid source ports; requires <code>protocol</code></td> + </tr> + <tr> + <td>dstportstart</td> + <td>UINT16</td> + <td>Start of range of valid destination ports; requires <code>protocol</code></td> + </tr> + <tr> + <td>dstportend</td> + <td>UINT16</td> + <td>End of range of valid destination ports; requires <code>protocol</code></td> + </tr> + </table> + <p> + Valid strings for <code>protocol</code> are: + tcp, udp, udplite, esp, ah, icmpv6, sctp + <br><br> + </p> + + <h5><a name="nwfelemsRulesProtoTCP-ipv4">TCP/UDP/SCTP</a></h5> + <p> + Protocol ID: <code>tcp</code>, <code>udp</code>, <code>sctp</code> + <br> + Note: The chain parameter is ignored for this type of traffic + and should either be omitted or set to <code>root</code>. + </p> + <table class="top_table"> + <tr> + <th> Attribute </th> + <th> Datatype </th> + <th> Semantics </th> + </tr> + <tr> + <td>srcmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of sender</td> + </tr> + <tr> + <td>srcipaddr</td> + <td>IP_ADDR</td> + <td>Source IP address</td> + </tr> + <tr> + <td>srcipmask</td> + <td>IP_MASK</td> + <td>Mask applied to source IP address</td> + </tr> + <tr> + <td>dstipaddr</td> + <td>IP_ADDR</td> + <td>Destination IP address</td> + </tr> + <tr> + <td>dstipmask</td> + <td>IP_MASK</td> + <td>Mask applied to destination IP address</td> + </tr> + + <tr> + <td>srcipfrom</td> + <td>IP_ADDR</td> + <td>Start of range of source IP address</td> + </tr> + <tr> + <td>srcipto</td> + <td>IP_ADDR</td> + <td>End of range of source IP address</td> + </tr> + <tr> + <td>dstipfrom</td> + <td>IP_ADDR</td> + <td>Start of range of destination IP address</td> + </tr> + <tr> + <td>dstipto</td> + <td>IP_ADDR</td> + <td>End of range of destination IP address</td> + </tr> + + <tr> + <td>srcportstart</td> + <td>UINT16</td> + <td>Start of range of valid source ports</td> + </tr> + <tr> + <td>srcportend</td> + <td>UINT16</td> + <td>End of range of valid source ports</code></td> + </tr> + <tr> + <td>dstportstart</td> + <td>UINT16</td> + <td>Start of range of valid destination ports</code></td> + </tr> + <tr> + <td>dstportend</td> + <td>UINT16</td> + <td>End of range of valid destination ports</td> + </tr> + </table> + <p> + <br><br> + </p> + + + <h5><a name="nwfelemsRulesProtoICMP">ICMP</a></h5> + <p> + Protocol ID: <code>icmp</code> + <br> + Note: The chain parameter is ignored for this type of traffic + and should either be omitted or set to <code>root</code>. + </p> + <table class="top_table"> + <tr> + <th> Attribute </th> + <th> Datatype </th> + <th> Semantics </th> + </tr> + <tr> + <td>srcmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of sender</td> + </tr> + <tr> + <td>srcmacmask</td> + <td>MAC_MASK</td> + <td>Mask applied to MAC address of sender</td> + </tr> + <tr> + <td>dstmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of destination</td> + </tr> + <tr> + <td>dstmacmask</td> + <td>MAC_MASK</td> + <td>Mask applied to MAC address of destination</td> + </tr> + <tr> + <td>srcipaddr</td> + <td>IP_ADDR</td> + <td>Source IP address</td> + </tr> + <tr> + <td>srcipmask</td> + <td>IP_MASK</td> + <td>Mask applied to source IP address</td> + </tr> + <tr> + <td>dstipaddr</td> + <td>IP_ADDR</td> + <td>Destination IP address</td> + </tr> + <tr> + <td>dstipmask</td> + <td>IP_MASK</td> + <td>Mask applied to destination IP address</td> + </tr> + + <tr> + <td>srcipfrom</td> + <td>IP_ADDR</td> + <td>Start of range of source IP address</td> + </tr> + <tr> + <td>srcipto</td> + <td>IP_ADDR</td> + <td>End of range of source IP address</td> + </tr> + <tr> + <td>dstipfrom</td> + <td>IP_ADDR</td> + <td>Start of range of destination IP address</td> + </tr> + <tr> + <td>dstipto</td> + <td>IP_ADDR</td> + <td>End of range of destination IP address</td> + </tr> + <tr> + <td>type</td> + <td>UINT16</td> + <td>ICMP type</td> + </tr> + <tr> + <td>code</td> + <td>UINT16</td> + <td>ICMP code</td> + </tr> + </table> + <p> + <br><br> + </p> + + <h5><a name="nwfelemsRulesProtoMisc">IGMP, ESP, AH, UDPLITE, 'ALL'</a></h5> + <p> + Protocol ID: <code>igmp</code>, <code>esp</code>, <code>ah</code>, <code>udplite</code>, <code>all</code> + <br> + Note: The chain parameter is ignored for this type of traffic + and should either be omitted or set to <code>root</code>. + </p> + <table class="top_table"> + <tr> + <th> Attribute </th> + <th> Datatype </th> + <th> Semantics </th> + </tr> + <tr> + <td>srcmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of sender</td> + </tr> + <tr> + <td>srcmacmask</td> + <td>MAC_MASK</td> + <td>Mask applied to MAC address of sender</td> + </tr> + <tr> + <td>dstmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of destination</td> + </tr> + <tr> + <td>dstmacmask</td> + <td>MAC_MASK</td> + <td>Mask applied to MAC address of destination</td> + </tr> + <tr> + <td>srcipaddr</td> + <td>IP_ADDR</td> + <td>Source IP address</td> + </tr> + <tr> + <td>srcipmask</td> + <td>IP_MASK</td> + <td>Mask applied to source IP address</td> + </tr> + <tr> + <td>dstipaddr</td> + <td>IP_ADDR</td> + <td>Destination IP address</td> + </tr> + <tr> + <td>dstipmask</td> + <td>IP_MASK</td> + <td>Mask applied to destination IP address</td> + </tr> + + <tr> + <td>srcipfrom</td> + <td>IP_ADDR</td> + <td>Start of range of source IP address</td> + </tr> + <tr> + <td>srcipto</td> + <td>IP_ADDR</td> + <td>End of range of source IP address</td> + </tr> + <tr> + <td>dstipfrom</td> + <td>IP_ADDR</td> + <td>Start of range of destination IP address</td> + </tr> + <tr> + <td>dstipto</td> + <td>IP_ADDR</td> + <td>End of range of destination IP address</td> + </tr> + </table> + <p> + <br><br> + </p> + + + <h5><a name="nwfelemsRulesProtoTCP-ipv6">TCP/UDP/SCTP over IPV6</a></h5> + <p> + Protocol ID: <code>tcp-ipv6</code>, <code>udp-ipv6</code>, <code>sctp-ipv6</code> + <br> + Note: The chain parameter is ignored for this type of traffic + and should either be omitted or set to <code>root</code>. + </p> + <table class="top_table"> + <tr> + <th> Attribute </th> + <th> Datatype </th> + <th> Semantics </th> + </tr> + <tr> + <td>srcmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of sender</td> + </tr> + <tr> + <td>srcipaddr</td> + <td>IPV6_ADDR</td> + <td>Source IP address</td> + </tr> + <tr> + <td>srcipmask</td> + <td>IPV6_MASK</td> + <td>Mask applied to source IP address</td> + </tr> + <tr> + <td>dstipaddr</td> + <td>IPV6_ADDR</td> + <td>Destination IP address</td> + </tr> + <tr> + <td>dstipmask</td> + <td>IPV6_MASK</td> + <td>Mask applied to destination IP address</td> + </tr> + + <tr> + <td>srcipfrom</td> + <td>IPV6_ADDR</td> + <td>Start of range of source IP address</td> + </tr> + <tr> + <td>srcipto</td> + <td>IPV6_ADDR</td> + <td>End of range of source IP address</td> + </tr> + <tr> + <td>dstipfrom</td> + <td>IPV6_ADDR</td> + <td>Start of range of destination IP address</td> + </tr> + <tr> + <td>dstipto</td> + <td>IPV6_ADDR</td> + <td>End of range of destination IP address</td> + </tr> + + <tr> + <td>srcportstart</td> + <td>UINT16</td> + <td>Start of range of valid source ports</td> + </tr> + <tr> + <td>srcportend</td> + <td>UINT16</td> + <td>End of range of valid source ports</td> + </tr> + <tr> + <td>dstportstart</td> + <td>UINT16</td> + <td>Start of range of valid destination ports</td> + </tr> + <tr> + <td>dstportend</td> + <td>UINT16</td> + <td>End of range of valid destination ports</td> + </tr> + </table> + <p> + <br><br> + </p> + + + <h5><a name="nwfelemsRulesProtoICMPv6">ICMPv6</a></h5> + <p> + Protocol ID: <code>icmpv6</code> + <br> + Note: The chain parameter is ignored for this type of traffic + and should either be omitted or set to <code>root</code>. + </p> + <table class="top_table"> + <tr> + <th> Attribute </th> + <th> Datatype </th> + <th> Semantics </th> + </tr> + <tr> + <td>srcmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of sender</td> + </tr> + <tr> + <td>srcipaddr</td> + <td>IPV6_ADDR</td> + <td>Source IPv6 address</td> + </tr> + <tr> + <td>srcipmask</td> + <td>IPV6_MASK</td> + <td>Mask applied to source IPv6 address</td> + </tr> + <tr> + <td>dstipaddr</td> + <td>IPV6_ADDR</td> + <td>Destination IPv6 address</td> + </tr> + <tr> + <td>dstipmask</td> + <td>IPV6_MASK</td> + <td>Mask applied to destination IPv6 address</td> + </tr> + + <tr> + <td>srcipfrom</td> + <td>IPV6_ADDR</td> + <td>Start of range of source IP address</td> + </tr> + <tr> + <td>srcipto</td> + <td>IPV6_ADDR</td> + <td>End of range of source IP address</td> + </tr> + <tr> + <td>dstipfrom</td> + <td>IPV6_ADDR</td> + <td>Start of range of destination IP address</td> + </tr> + <tr> + <td>dstipto</td> + <td>IPV6_ADDR</td> + <td>End of range of destination IP address</td> + </tr> + + <tr> + <td>type</td> + <td>UINT16</td> + <td>ICMPv6 type</td> + </tr> + <tr> + <td>code</td> + <td>UINT16</td> + <td>ICMPv6 code</td> + </tr> + </table> + <p> + <br><br> + </p> + + <h5><a name="nwfelemsRulesProtoMiscv6">IGMP, ESP, AH, UDPLITE, 'ALL' over IPv6</a></h5> + <p> + Protocol ID: <code>igmp-ipv6</code>, <code>esp-ipv6</code>, <code>ah-ipv6</code>, <code>udplite-ipv6</code>, <code>all-ipv6</code> + <br> + Note: The chain parameter is ignored for this type of traffic + and should either be omitted or set to <code>root</code>. + </p> + <table class="top_table"> + <tr> + <th> Attribute </th> + <th> Datatype </th> + <th> Semantics </th> + </tr> + <tr> + <td>srcmacaddr</td> + <td>MAC_ADDR</td> + <td>MAC address of sender</td> + </tr> + <tr> + <td>srcipaddr</td> + <td>IPV6_ADDR</td> + <td>Source IPv6 address</td> + </tr> + <tr> + <td>srcipmask</td> + <td>IPV6_MASK</td> + <td>Mask applied to source IPv6 address</td> + </tr> + <tr> + <td>dstipaddr</td> + <td>IPV6_ADDR</td> + <td>Destination IPv6 address</td> + </tr> + <tr> + <td>dstipmask</td> + <td>IPV6_MASK</td> + <td>Mask applied to destination IPv6 address</td> + </tr> + + <tr> + <td>srcipfrom</td> + <td>IPV6_ADDR</td> + <td>Start of range of source IP address</td> + </tr> + <tr> + <td>srcipto</td> + <td>IPV6_ADDR</td> + <td>End of range of source IP address</td> + </tr> + <tr> + <td>dstipfrom</td> + <td>IPV6_ADDR</td> + <td>Start of range of destination IP address</td> + </tr> + <tr> + <td>dstipto</td> + <td>IPV6_ADDR</td> + <td>End of range of destination IP address</td> + </tr> + + </table> + <p> + <br><br> + </p> + + <h2><a name="nwfcli">Command line tools</a></h2> + <p> + The libvirt command line tool <code>virsh</code> has been extended + with life-cycle support for network filters. All commands related + to the network filtering subsystem start with the prefix + <code>nwfilter</code>. The following commands are available: + <p> + <ul> + <li>nwfilter-list : list UUIDs and names of all network filters</li> + <li>nwfilter-define : define a new network filter or update an existing one</li> + <li>nwfilter-undefine : delete a network filter given its name; it must not be currently in use</li> + <li>nwfilter-dumpxml : display a network filter given its name</li> + <li>nwfilter-edit : edit a network filter given its name</li> + </ul> + + <h2><a name="nwfexamples">Example network filters</a></h2> + <p> + The following is a list of example network filters that are + automatically installed with libvirt. </p> + <table class="top_table"> + <tr> + <th> Name </th> + <th> Description </th> + </tr> + <tr> + <td> no-arp-spoofing </td> + <td> Prevent a VM from spoofing ARP traffic; this filter + only allows ARP request and reply messages and enforces + that those packets contain the MAC and IP addresses + of the VM.</td> + </tr> + <tr> + <td> allow-dhcp </td> + <td> Allow a VM to request an IP address via DHCP (from any + DHCP server)</td> + </tr> + <tr> + <td> allow-dhcp-server </td> + <td> Allow a VM to request an IP address from a specified + DHCP server. The dotted decimal IP address of the DHCP + server must be provided in a reference to this filter. + The name of the variable must be <i>DHCPSERVER</i>.</td> + </tr> + <tr> + <td> no-ip-spoofing </td> + <td> Prevent a VM from sending of IP packets with + a source IP address different from the one + in the packet. </td> + </tr> + <tr> + <td> no-ip-multicast </td> + <td> Prevent a VM from sending IP multicast packets. </td> + </tr> + <tr> + <td> clean-traffic </td> + <td> Prevent MAC, IP and ARP spoofing. This filter references + several other filters as building blocks. </td> + </tr> + </table> + <p> + Note that most of the above filters are only building blocks and + require a combination with other filters to provide useful network + traffic filtering. + The most useful one in the above list is the <i>clean-traffic</i> + filter. This filter itself can for example be combined with the + <i>no-ip-multicast</i> + filter to prevent virtual machines from sending IP multicast traffic + on top of the prevention of packet spoofing. + </p> + + <h2><a name="nwfwrite">Writing your own filters</a></h2> + + <p> + Since libvirt only provides a couple of example networking filters, you + may consider writing your own. When planning on doing so + there are a couple of things + you may need to know regarding the network filtering subsystem and how + it works internally. Certainly you also have to know and understand + the protocols very well that you want to be filtering on so that + no further traffic than what you want can pass and that in fact the + traffic you want to allow does pass. + <br><br> + The network filtering subsystem is currently only available on + Linux hosts and only works for Qemu and KVM type of virtual machines. + On Linux + it builds upon the support for <code>ebtables</code>, <code>iptables + </code> and <code>ip6tables</code> and makes use of their features. + From the above list of supported protocols the following ones are + implemented using <code>ebtables</code>: + </p> + <ul> + <li>mac</li> + <li>arp, rarp</li> + <li>ip</li> + <li>ipv6</li> + </uL> + + <p> + All other protocols over IPv4 are supported using iptables, those over + IPv6 are implemented using ip6tables. + <br><br> + On a Linux host, all traffic filtering instantiated by libvirt's network + filter subsystem first passes through the filtering support implemented + by ebtables and only then through iptables or ip6tables filters. If + a filter tree has rules with the protocols <code>mac</code>, + <code>arp</code>, <code>rarp</code>, <code>ip</code>, or <code>ipv6</code> + ebtables rules will automatically be instantiated. + <br> + The role of the <code>chain</code> attribute in the network filter + XML is that internally a new user-defined ebtables table is created + that then for example receives all <code>arp</code> traffic coming + from or going to a virtual machine, if the chain <code>arp</code> + has been specified. Further, a rule is generated in an interface's + <code>root</code> chain that directs all ipv4 traffic into the + user-defined chain. Therefore, all ARP traffic rules should then be + placed into filters specifying this chain. This type of branching + into user-define tables is only supported with filtering on the ebtables + layer. + <br> + As an example, it is + possible to filter on UDP traffic by source and destination ports using + the <code>ip</code> protocol filter and specifying attributes for the + protocol, source and destination IP addresses and ports of UDP packets + that are to be accepted. This allows + early filtering of UDP traffic with ebtables. However, once an IP or IPv6 + packet, such as a UDP packet, + has passed the ebtables layer and there is at least one rule in a filter + tree that instantiates iptables or ip6tables rules, a rule to let + the UDP packet pass will also be necessary to be provided for those + filtering layers. This can be + achieved with a rule containing an approriate <code>udp</code> or + <code>udp-ipv6</code> traffic filtering node. + </p> + + <h3><a name="nwfwriteexample">Example custom filter</a></h3> + <p> + As an example we want to now build a filter that fulfills the following + list of requirements: + </p> + <ul> + <li>prevents a VM's interface from MAC, IP and ARP spoofing</li> + <li>opens only TCP ports 22 and 80 of a VM's interface</li> + <li>allows the VM to send ping traffic from an interface + but no let the VM be pinged on the interface</li> + </ul> + <p> + The requirement to prevent spoofing is fulfilled by the existing + <code>clean-traffic</code> network filter, thus we will reference this + filter from our custom filter. + <br> + To enable traffic for TCP ports 22 and 80 we will add 2 rules to + enable this type of traffic. To allow the VM to send ping traffic + we will add a rule for ICMP traffic. For simplicity reasons + we allow general ICMP traffic to be initated from the VM, not + just ICMP echo request and response messages. To then + disallow all other traffic to reach or be initated by the + VM we will then need to add a rule that drops all other traffic. + Assuming our VM is called <i>test</i> and + the interface we want to associate our filter with is called <i>eth0</i>, + we name our filter <i>test-eth0</i>. + The result of these considerations is the following network filter XML: + </p> +<pre> +<filter name='test-eth0'> +  + <filterref filter='clean-traffic'/> + +  + <rule action='accept' direction='in'> + <tcp dstportstart='22'/> + </rule> + + <rule action='accept' direction='in'> + <tcp dstportstart='80'/> + </rule> + +  + <rule action='accept' direction='out'> + <icmp/> + </rule> + +  + <rule action='drop' direction='inout'> + <all/> + </rule> + +</filter> +</pre> + <p> + Note that none of the rules in the above XML contain the + IP address of the VM as either source or destination address, yet + the filtering of the traffic works correctly. The reason is that + the evaluation of the rules internally happens on a + per-interface basis and the rules are evaluated based on the knowledge + about which (tap) interface has sent or will receive the packet rather + than what their source or destination IP address may be. + <br><br> + An XML fragment for a possible network interface description inside + the domain XML of the <code>test</code> VM could then look like this: + </p> +<pre> + [...] + <interface type='bridge'> + <source bridge='mybridge'/> + <filterref filter='test-eth0'/> + </interface> + [...] +</pre> + + <p> + To more strictly control the ICMP traffic and enforce that only + ICMP echo requests can be sent from the VM + and only ICMP echo responses be received by the VM, the above + <code>ICMP</code> rule can be replaced with the following two rules: + </p> +<pre> +  + <rule action='accept' direction='out'> + <icmp type='8'/> + </rule> + +  + <rule action='accept' direction='in'> + <icmp type='0'/> + </rule> +</pre> + + + <h2><a name="nwflimits">Limitations</a></h2> + <p> + The following sections list (current) limitations of the network + filtering subsystem. + </p> + + <h3><a name="nwflimitsIP">IP Address Detection</a></h3> + <p> + In case a network filter references the variable + <i>IP</i> and no variable was defined in any higher layer + references to the filter, IP address detection will automatically + be started when the filter is to be instantiated (VM start, interface + hotplug event). Only IPv4 + addresses can be detected and only a single IP address + legitimately in use by a VM on a single interface will be detected. + In case a VM was to use multiple IP address on a single interface + (IP aliasing), + the IP addresses would have to be provided explicitly either + in the network filter itself or as variables used in attributes' + values. These + variables must then be defined in a higher level reference to the filter + and each assigned the value of the IP address that the VM is expected + to be using. + Different IP addresses in use by multiple interfaces of a VM + (one IP address each) will be independently detected. + <br><br> + Once a VM's IP address has been detected, its IP network traffic + may be locked to that address, if for example IP address spoofing + is prevented by one of its filters. In that case the user of the VM + will not be able to change the IP address on the interface inside + the VM, which would be considered IP address spoofing. + <br><br> + In case a VM is resumed after suspension or migrated, IP address + detection will be restarted. + </p> + + <h3><a name="nwflimitsmigr">VM Migration</a></h3> + <p> + VM migration is only supported if the whole filter tree + that is referenced by a virtual machine's top level filter + is also available on the target host. The network filter + <i>clean-traffic</i> + for example should be available on all libvirt installations + of version 0.8.1 or later and thus enable migration of VMs that + for example reference this filter. All other + custom filters must be migrated using higher layer software. It is + outside the scope of libvirt to ensure that referenced filters + on the source system are equivalent to those on the target system + and vice versa. + <br><br> + Migration must occurr between libvirt insallations of version + 0.8.1 or later in order not to loose the network traffic filters + associated with an interface. + </p> + + </body> +</html>

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[libvirt] [PATCH] Add host UUID (to libvirt capabilities)
by Stefan Berger 24 May '10

24 May '10

This patch adds the host UUID (to the capabilities of libvirt). The user may provide it in libvirtd.conf overriding whatever dmidecode may return. If none or no valid UUID is provided in libvirtd.conf, dmidecode is being used. If that function doesn't provide a valid (not all digits may be equal), generate a temporary one. virSetHostUUIDStr() should be called first with the UUID read from libvirtd.conf, but may only be called once. Subsequently the functions virGetHostUUID[Str]() can be called to get the UUID of the host. Besides that, this patch - adds a dependency on the dmidecode package - adds uuid to the capabilties XML schema - displays the UUID in in 'virsh capabilities' - adds 3 public functions to uuid.h for setting and getting the UUID of the host This patch contains recycled code from Scott Feldman (getDMISystemUUID()). Signed-off-by: Stefan Berger <stefanb(a)us.ibm.com> --- daemon/libvirtd.c | 5 + src/conf/capabilities.c | 4 + src/util/uuid.c | 126 ++++++++++++++++++++++++++++++++++++++++++++++++ src/util/uuid.h | 4 + 4 files changed, 139 insertions(+) Index: libvirt-acl/daemon/libvirtd.c =================================================================== --- libvirt-acl.orig/daemon/libvirtd.c +++ libvirt-acl/daemon/libvirtd.c @@ -2718,6 +2718,7 @@ remoteReadConfigFile (struct qemud_serve char *unix_sock_rw_perms = NULL; char *unix_sock_group = NULL; char *buf = NULL; + char *host_uuid = NULL; #if HAVE_POLKIT /* Change the default back to no auth for non-root */ @@ -2840,6 +2841,10 @@ remoteReadConfigFile (struct qemud_serve GET_CONF_INT (conf, filename, max_requests); GET_CONF_INT (conf, filename, max_client_requests); + GET_CONF_STR (conf, filename, host_uuid); + virSetHostUUIDStr(host_uuid); + VIR_FREE(host_uuid); + virConfFree (conf); return 0; Index: libvirt-acl/src/util/uuid.h =================================================================== --- libvirt-acl.orig/src/util/uuid.h +++ libvirt-acl/src/util/uuid.h @@ -22,6 +22,10 @@ #ifndef __VIR_UUID_H__ # define __VIR_UUID_H__ +int virSetHostUUIDStr(const char *host_uuid); +int virGetHostUUID(unsigned char *host_uuid); +int virGetHostUUIDStr(char *host_uuid); + int virUUIDGenerate(unsigned char *uuid); int virUUIDParse(const char *uuidstr, Index: libvirt-acl/src/util/uuid.c =================================================================== --- libvirt-acl.orig/src/util/uuid.c +++ libvirt-acl/src/util/uuid.c @@ -38,11 +38,14 @@ #include "util.h" #include "virterror_internal.h" #include "logging.h" +#include "memory.h" #ifndef ENODATA # define ENODATA EIO #endif +static unsigned char host_uuid[VIR_UUID_BUFLEN]; + static int virUUIDGenerateRandomBytes(unsigned char *buf, int buflen) @@ -208,3 +211,154 @@ void virUUIDFormat(const unsigned char * uuid[12], uuid[13], uuid[14], uuid[15]); uuidstr[VIR_UUID_STRING_BUFLEN-1] = '\0'; } + + + +/** + * isValidHostUUID + * + * @uuid: The UUID to test + * + * Do some basic tests to check whether the given UUID is + * valid as a host UUID. + * Basic tests: + * - Not all of the digits may be equal + */ +static int +isValidHostUUID(unsigned char *uuid) +{ + unsigned int i, ctr = 1; + unsigned char c; + + if (!uuid) + return 0; + + c = uuid[0]; + + for (i = 1; i < VIR_UUID_BUFLEN; i++) + if (uuid[i] == c) + ctr++; + + return (ctr != VIR_UUID_BUFLEN); +} + +static int +getDMISystemUUID(char *uuid, int len) +{ + const char *dmidecodearg[] = { "dmidecode", "-s", "system-uuid", NULL }; + const char *const dmidecodeenv[] = { "LC_ALL=C", NULL }; + char *binary, *newline; + int dmidecodestdout = -1; + int ret = -1; + pid_t child; + + binary = virFindFileInPath(dmidecodearg[0]); + if (binary == NULL || access(binary, X_OK) != 0) { + VIR_FREE(binary); + return -1; + } + dmidecodearg[0] = binary; + + if (virExec(dmidecodearg, dmidecodeenv, NULL, + &child, -1, &dmidecodestdout, NULL, VIR_EXEC_CLEAR_CAPS) < 0) { + ret = -1; + goto cleanup; + } + + if((ret = saferead(dmidecodestdout, uuid, len)) <= 0) { + ret = -1; + goto cleanup; + } + uuid[ret-1] = '\0'; + + /* strip newline */ + newline = strrchr(uuid, '\n'); + if (newline) + *newline = '\0'; + + ret = 0; + +cleanup: + VIR_FREE(binary); + + if (close(dmidecodestdout) < 0) + ret = -1; + + return ret; +} + + +/** + * setHostUUID + * + * @host_uuid: UUID that the host is supposed to have + * + * Set the UUID of the host if it hasn't been set, yet + * Returns 0 in case of success, an error code in case of error. + */ +int +virSetHostUUIDStr(const char *uuid) +{ + char dmiuuid[VIR_UUID_STRING_BUFLEN]; + + if (isValidHostUUID(host_uuid)) + return EEXIST; + + if (!uuid) { + if (!getDMISystemUUID(dmiuuid, sizeof(dmiuuid))) { + if (!virUUIDParse(dmiuuid, host_uuid)) { + return 0; + } + } + } else { + if (!virUUIDParse(uuid, host_uuid)) + return 0; + } + + if (!isValidHostUUID(host_uuid)) + return virUUIDGenerate(host_uuid); + return 0; +} + +/** + * getHostUUID: + * + * @host_uuid: memory to store the host_uuid into + * + * Get the UUID of the host. Returns 0 in case of success, + * an error code otherwise. + * Returns 0 in case of success, an error code in case of error. + */ +int virGetHostUUID(unsigned char *uuid) +{ + int ret = 0; + + if (!isValidHostUUID(host_uuid)) + ret = virSetHostUUIDStr(NULL); + + memcpy(uuid, host_uuid, sizeof(host_uuid)); + + return ret; +} + + +/** + * getHostUUID: + * + * @host_uuid: memory to store the host_uuid into + * + * Get the UUID of the host. Returns 0 in case of success, + * an error code otherwise. + * Returns 0 in case of success, an error code in case of error. + */ +int virGetHostUUIDStr(char *uuid) +{ + int ret = 0; + + if (!isValidHostUUID(host_uuid)) + ret = virSetHostUUIDStr(NULL); + + virUUIDFormat(host_uuid, uuid); + + return ret; +} Index: libvirt-acl/src/conf/capabilities.c =================================================================== --- libvirt-acl.orig/src/conf/capabilities.c +++ libvirt-acl/src/conf/capabilities.c @@ -27,6 +27,7 @@ #include "buf.h" #include "memory.h" #include "util.h" +#include "uuid.h" #include "cpu_conf.h" /** @@ -662,9 +663,12 @@ virCapabilitiesFormatXML(virCapsPtr caps { virBuffer xml = VIR_BUFFER_INITIALIZER; int i, j, k; + char host_uuid[VIR_UUID_STRING_BUFLEN]; + virGetHostUUIDStr(host_uuid); virBufferAddLit(&xml, "<capabilities>\n\n"); virBufferAddLit(&xml, " <host>\n"); + virBufferVSprintf(&xml," <uuid>%s</uuid>\n", host_uuid); virBufferAddLit(&xml, " <cpu>\n"); virBufferVSprintf(&xml, " <arch>%s</arch>\n", caps->host.arch); Index: libvirt-acl/docs/schemas/capability.rng =================================================================== --- libvirt-acl.orig/docs/schemas/capability.rng +++ libvirt-acl/docs/schemas/capability.rng @@ -18,6 +18,9 @@ <define name='hostcaps'> <element name='host'> + <element name='uuid'> + <ref name='UUID'/> + </element> <element name='cpu'> <element name='arch'> <ref name='archnames'/> @@ -349,4 +352,15 @@ <param name='pattern'>[a-zA-Z0-9\-_]+</param> </data> </define> + + <define name="UUID"> + <choice> + <data type="string"> + <param name="pattern">[a-fA-F0-9]{32}</param> + </data> + <data type="string"> + <param name="pattern">[a-fA-F0-9]{8}\-([a-fA-F0-9]{4}\-){3}[a-fA-F0-9]{12}</param> + </data> + </choice> + </define> </grammar> Index: libvirt-acl/src/libvirt_private.syms =================================================================== --- libvirt-acl.orig/src/libvirt_private.syms +++ libvirt-acl/src/libvirt_private.syms @@ -708,6 +708,9 @@ usbDeviceFileIterate; virUUIDFormat; virUUIDGenerate; virUUIDParse; +virSetHostUUIDStr; +virGetHostUUID; +virGetHostUUIDStr; # virterror_internal.h Index: libvirt-acl/daemon/libvirtd.conf =================================================================== --- libvirt-acl.orig/daemon/libvirtd.conf +++ libvirt-acl/daemon/libvirtd.conf @@ -312,3 +312,12 @@ # e.g.: # log_outputs="3:syslog:libvirtd" # to log all warnings and errors to syslog under the libvirtd ident + +# UUID of the host: +# Provide the UUID of the host here in case the command +# 'dmidecode -s system-uuid' does not provide a valid uuid. In case +# 'dmidecode' does not provide a valid UUID and none is provided here, a +# temporary UUID will be generated. +# Keep the format of the example UUID below. + +#host_uuid = '8510b1a1-1afa-4da6-8111-785fae202c1d' Index: libvirt-acl/libvirt.spec.in =================================================================== --- libvirt-acl.orig/libvirt.spec.in +++ libvirt-acl/libvirt.spec.in @@ -192,6 +192,7 @@ Requires: %{name}-client = %{version}-%{ # daemon is present %if %{with_libvirtd} Requires: bridge-utils +Requires: dmidecode %endif %if %{with_network} Requires: dnsmasq

2 1

Re: [libvirt] [PATCH] network: bridge: Don't start network if it collides with host routing
by Neil Wilson 24 May '10

24 May '10

You need to be very careful not to hit a valid use case here. RFC3069 provides for a mechanism whereby a supernet/subnet system is setup to allow better use of available IPv4 address space. This is becoming of increasing concern as IPv4 space exhausts. To implement this you turn on Proxy ARP on a host and inject /32 routes advertised from other hosts into the routing table. The network on the current host has a wide subnet mask (for example 10.0.0.0/8), so that the host responds to ARPs for VM guests that are actually on a completely different host. So you could have the situation where you have routes picked up via a dynamic routing protocol (say OSPF) on a host that are inside the range for the defined network in libvirt. Failing to start the network in that case would be incorrect. -- Neil Wilson -- Neil Wilson

2 3

[libvirt] Question about the libvirt Java bindings
by Dustin Xiong 24 May '10

24 May '10

Dear all: I encounter a problem when I running the libvirt java bindings test program. I download the libvirt-java-0.4.3.tar.gz. Then compiled successful, but the test program can't running. # ant build Buildfile: build.xml init: [copy] Copying 1 file to /home/dustin/libvirt-java-0.4.3 build: BUILD SUCCESSFUL Total time: 0 seconds # javac -classpath /home/dustin/libvirt-java-0.4.3/target/libvirt-0.4.3.jar test.java Note: test.java uses or overrides a deprecated API. Note: Recompile with -Xlint:deprecation for details. (I think this will not affect the use of libvirt library. It‘s just a warning. javac -classpath /home/dustin/libvirt-java-0.4.3/target/libvirt-0.4.3.jar test.java -Xlint:deprecation test.java:142: warning: [deprecation] networkLookupByUUID(int[]) in org.libvirt.Connect has been deprecated testNetwork = conn.networkLookupByUUID(UUIDArray); ^ 1 warning Maybe I am wrong?) # java -classpath .:/usr/share/java/jna.jar:/home/dustin/libvirt-java-0.4.3/target/libvirt-0.4.3.jar test Exception in thread "main" java.lang.UnsatisfiedLinkError: jnidispatch (/com/sun/jna/linux-i386/libjnidispatch.so) not found in resource path at com.sun.jna.Native.loadNativeLibraryFromJar(Native.java:592) at com.sun.jna.Native.loadNativeLibrary(Native.java:574) at com.sun.jna.Native.<clinit>(Native.java:104) at org.libvirt.jna.Libvirt.<clinit>(Unknown Source) at org.libvirt.Connect.<clinit>(Unknown Source) at test.main(test.java:43) I test other test.java, the results are the same. I don't know the libjnidispatch.so can't be find is caused by the libvirt-java or JNA library. How can I resolve the problem? My java environment as below: libjna-java-3.1.0-1 sun-java6-jdk-6-15-1 junit-3.8.2-3 Thank you very much. -Dustin 2010-5-24 _________________________________________________________________ Hotmail: Trusted email with Microsoft’s powerful SPAM protection. https://signup.live.com/signup.aspx?id=60969

2 1

[libvirt] [PATCH 00/10] Add support for SPICE graphics in QEMU
by Daniel P. Berrange 24 May '10

24 May '10

Gerd today posted patches to upstream QEMU which support SPICE graphics. They have not been accepted / merged yet, but I'm optimistic that the command line syntax will not change significantly. http://lists.gnu.org/archive/html/qemu-devel/2010-04/msg00967.html This patch series adds corresponding support in libvirt's QEMU driver. Although this patch series adds support in the XML RNG for a password expiry time, this functionality isn't wired up in this patch series since I need more time to write fallback code for cases where QEMU doesn't do expiry itself. Daniel

3 14

[libvirt] [RFC] [PATCH 3/3 v2] vepa+vsi: Some experimental code for 802.1Qbh
by Stefan Berger 24 May '10

24 May '10

This patch may get 802.1Qbh devices working. I am adding some code to poll for the status of an 802.1Qbh device and loop for a while until the status indicates success. This part for sure needs more work and testing... I am recycling link_dump from a previous patch. Changes from V1 to V2: - Following tree Signed-off-by: Stefan Berger <stefanb(a)linux.vnet.ibm.com> --- src/util/macvtap.c | 116 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 116 insertions(+) Index: libvirt-acl/src/util/macvtap.c =================================================================== --- libvirt-acl.orig/src/util/macvtap.c +++ libvirt-acl/src/util/macvtap.c @@ -960,6 +960,95 @@ getPortProfileStatus(struct nlmsghdr *nl static int +link_dump(int ifindex, const char *ifname, struct nlattr **tb, + char **recvbuf) +{ + int rc = 0; + char nlmsgbuf[256] = { 0, }; + struct nlmsghdr *nlm = (struct nlmsghdr *)nlmsgbuf, *resp; + struct nlmsgerr *err; + char rtattbuf[64]; + struct rtattr *rta; + struct ifinfomsg i = { + .ifi_family = AF_UNSPEC, + .ifi_index = ifindex + }; + int recvbuflen; + + *recvbuf = NULL; + + nlInit(nlm, NLM_F_REQUEST, RTM_GETLINK); + + if (!nlAppend(nlm, sizeof(nlmsgbuf), &i, sizeof(i))) + goto buffer_too_small; + + if (ifindex < 0 && ifname != NULL) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_IFNAME, + ifname, strlen(ifname) + 1); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (nlComm(nlm, recvbuf, &recvbuflen) < 0) + return -1; + + if (recvbuflen < NLMSG_LENGTH(0) || *recvbuf == NULL) + goto malformed_resp; + + resp = (struct nlmsghdr *)*recvbuf; + + switch (resp->nlmsg_type) { + case NLMSG_ERROR: + err = (struct nlmsgerr *)NLMSG_DATA(resp); + if (resp->nlmsg_len < NLMSG_LENGTH(sizeof(*err))) + goto malformed_resp; + + switch (-err->error) { + case 0: + break; + + default: + virReportSystemError(-err->error, + _("error dumping %d interface"), + ifindex); + rc = -1; + } + break; + + case GENL_ID_CTRL: + case NLMSG_DONE: + if (nlmsg_parse(resp, sizeof(struct ifinfomsg), + tb, IFLA_MAX, ifla_policy)) { + goto malformed_resp; + } + break; + + default: + goto malformed_resp; + } + + if (rc != 0) + VIR_FREE(*recvbuf); + + return rc; + +malformed_resp: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("malformed netlink response message")); + VIR_FREE(*recvbuf); + return -1; + +buffer_too_small: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("internal buffer is too small")); + return -1; +} + + +static int doPortProfileOpSetLink(bool multicast, const char *ifname, int ifindex, const char *profileId, @@ -1151,6 +1240,10 @@ doPortProfileOpCommon(bool multicast, uint8_t op) { int rc; + char *recvbuf = NULL; + struct nlattr *tb[IFLA_MAX + 1]; + int repeats = 5; + uint16_t status; rc = doPortProfileOpSetLink(multicast, ifname, ifindex, @@ -1167,6 +1260,30 @@ doPortProfileOpCommon(bool multicast, return rc; } + if (!multicast) { + /* 802.1Qbh -- query for status */ + while (--repeats) { + rc = link_dump(ifindex, ifname, tb, &recvbuf); + if (rc) + goto err_exit; + rc = getPortProfileStatus((struct nlmsghdr *)recvbuf, &status); + if (rc == 0) { + if (status == 0) + break; + if (status != 0) { + fprintf(stderr,"Current status: %d\n", status); + rc = 1; + } + } + usleep(10000); + + VIR_FREE(recvbuf); + } + } + +err_exit: + VIR_FREE(recvbuf); + return rc; }

4 12

[libvirt] [PATCH 1/3] storage: mpath: Clean up some error handling
by Cole Robinson 24 May '10

24 May '10

We were squashing error messages in a few cases. Recode to follow common ret = -1 convention. Signed-off-by: Cole Robinson <crobinso(a)redhat.com> --- src/storage/storage_backend_mpath.c | 20 ++++---------------- 1 files changed, 4 insertions(+), 16 deletions(-) diff --git a/src/storage/storage_backend_mpath.c b/src/storage/storage_backend_mpath.c index 8318969..6351fe1 100644 --- a/src/storage/storage_backend_mpath.c +++ b/src/storage/storage_backend_mpath.c @@ -43,39 +43,27 @@ virStorageBackendMpathUpdateVolTargetInfo(virStorageVolTargetPtr target, unsigned long long *allocation, unsigned long long *capacity) { - int ret = 0; + int ret = -1; int fd = -1; if ((fd = open(target->path, O_RDONLY)) < 0) { virReportSystemError(errno, _("cannot open volume '%s'"), target->path); - ret = -1; goto out; } if (virStorageBackendUpdateVolTargetInfoFD(target, fd, allocation, - capacity) < 0) { + capacity) < 0) - virStorageReportError(VIR_ERR_INTERNAL_ERROR, - _("Failed to update volume target info for '%s'"), - target->path); - - ret = -1; goto out; - } - - if (virStorageBackendUpdateVolTargetFormatFD(target, fd) < 0) { - virStorageReportError(VIR_ERR_INTERNAL_ERROR, - _("Failed to update volume target format for '%s'"), - target->path); - ret = -1; + if (virStorageBackendUpdateVolTargetFormatFD(target, fd) < 0) goto out; - } + ret = 0; out: if (fd != -1) { close(fd); -- 1.6.6.1

3 8

[libvirt] [V2 PATCH] V2 port-profile ID support using new IFLA_VF_PORTS netlink msg
by Scott Feldman 24 May '10

24 May '10

From: Scott Feldman <scofeldm(a)cisco.com> Use the new IFLA_VF_PORTS netlink msg to associate/disassociate port-profiles on a virtual port backing the VM device. The new netlink msg type has been accepted by netdev kernel maintainer. Tested with Cisco's 10G Ethernet NIC using example XML: <interface type='direct'> <mac address='52:54:00:07:70:cf'/> <source dev='eth2' mode='private' profileid='test-network'/> <target dev='macvtap0'/> <model type='virtio'/> </interface> Changes since V1: - port to new netlink msg types Next steps for V3, etc: 1) merge with Stefan's latest patch, as much as possible 2) assign VM device mac addr to eth and set macvtap mac addr to random 3) figure out where host_uuid lives Signed-off-by: Scott Feldman <scofeldm(a)cisco.com> Signed-off-by: Roopa Prabhu<roprabhu(a)cisco.com> --- src/conf/domain_conf.c | 13 ++ src/conf/domain_conf.h | 1 src/libvirt_macvtap.syms | 2 src/qemu/qemu_conf.c | 7 + src/qemu/qemu_driver.c | 10 +- src/util/macvtap.c | 260 +++++++++++++++++++++++++++++++++++++++++++++- src/util/macvtap.h | 7 + 7 files changed, 294 insertions(+), 6 deletions(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 20c9c51..577c2ea 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -484,6 +484,7 @@ void virDomainNetDefFree(virDomainNetDefPtr def) case VIR_DOMAIN_NET_TYPE_DIRECT: VIR_FREE(def->data.direct.linkdev); + VIR_FREE(def->data.direct.profileid); break; case VIR_DOMAIN_NET_TYPE_USER: @@ -1831,6 +1832,7 @@ virDomainNetDefParseXML(virCapsPtr caps, char *internal = NULL; char *devaddr = NULL; char *mode = NULL; + char *profileid = NULL; virNWFilterHashTablePtr filterparams = NULL; if (VIR_ALLOC(def) < 0) { @@ -1873,6 +1875,7 @@ virDomainNetDefParseXML(virCapsPtr caps, xmlStrEqual(cur->name, BAD_CAST "source")) { dev = virXMLPropString(cur, "dev"); mode = virXMLPropString(cur, "mode"); + profileid = virXMLPropString(cur, "profileid"); } else if ((network == NULL) && ((def->type == VIR_DOMAIN_NET_TYPE_SERVER) || (def->type == VIR_DOMAIN_NET_TYPE_CLIENT) || @@ -2050,6 +2053,11 @@ virDomainNetDefParseXML(virCapsPtr caps, } else def->data.direct.mode = VIR_DOMAIN_NETDEV_MACVTAP_MODE_VEPA; + if (profileid != NULL) { + def->data.direct.profileid = profileid; + profileid = NULL; + } + def->data.direct.linkdev = dev; dev = NULL; @@ -2115,6 +2123,7 @@ cleanup: VIR_FREE(internal); VIR_FREE(devaddr); VIR_FREE(mode); + VIR_FREE(profileid); virNWFilterHashTableFree(filterparams); return def; @@ -5141,6 +5150,10 @@ virDomainNetDefFormat(virBufferPtr buf, def->data.direct.linkdev); virBufferVSprintf(buf, " mode='%s'", virDomainNetdevMacvtapTypeToString(def->data.direct.mode)); + if (def->data.direct.profileid) { + virBufferEscapeString(buf, " profileid='%s'", + def->data.direct.profileid); + } virBufferAddLit(buf, "/>\n"); break; diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index fadc8bd..30ebf07 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -290,6 +290,7 @@ struct _virDomainNetDef { struct { char *linkdev; int mode; + char *profileid; } direct; } data; char *ifname; diff --git a/src/libvirt_macvtap.syms b/src/libvirt_macvtap.syms index ae229a0..9d4652e 100644 --- a/src/libvirt_macvtap.syms +++ b/src/libvirt_macvtap.syms @@ -3,3 +3,5 @@ # macvtap.h openMacvtapTap; delMacvtap; +setPortProfileId; +unsetPortProfileId; diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c index 3e334dc..ea74f1c 100644 --- a/src/qemu/qemu_conf.c +++ b/src/qemu/qemu_conf.c @@ -1479,6 +1479,11 @@ qemudPhysIfaceConnect(virConnectPtr conn, net->model && STREQ(net->model, "virtio")) vnet_hdr = 1; + if (net->data.direct.profileid) + setPortProfileId(net->data.direct.linkdev, + net->data.direct.profileid, + NULL, NULL); + rc = openMacvtapTap(net->ifname, net->mac, linkdev, brmode, &res_ifname, vnet_hdr); if (rc >= 0) { @@ -1501,6 +1506,8 @@ qemudPhysIfaceConnect(virConnectPtr conn, close(rc); rc = -1; delMacvtap(net->ifname); + if (net->data.direct.profileid) + unsetPortProfileId(net->data.direct.linkdev); } } } diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 65ca117..c5f2f78 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -3695,8 +3695,11 @@ static void qemudShutdownVMDaemon(struct qemud_driver *driver, for (i = 0; i < def->nnets; i++) { virDomainNetDefPtr net = def->nets[i]; if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) { - if (net->ifname) + if (net->ifname) { delMacvtap(net->ifname); + if (net->data.direct.profileid) + unsetPortProfileId(net->data.direct.linkdev); + } } } #endif @@ -8387,8 +8390,11 @@ qemudDomainDetachNetDevice(struct qemud_driver *driver, #if WITH_MACVTAP if (detach->type == VIR_DOMAIN_NET_TYPE_DIRECT) { - if (detach->ifname) + if (detach->ifname) { delMacvtap(detach->ifname); + if (detach->data.direct.profileid) + unsetPortProfileId(detach->data.direct.linkdev); + } } #endif diff --git a/src/util/macvtap.c b/src/util/macvtap.c index 1f8dd29..7803bc8 100644 --- a/src/util/macvtap.c +++ b/src/util/macvtap.c @@ -85,14 +85,14 @@ static void nlClose(int fd) * buffer will be returned. */ static -int nlComm(struct nlmsghdr *nlmsg, +int nlComm(struct nlmsghdr *nlmsg, int nlgroups, char **respbuf, int *respbuflen) { int rc = 0; struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK, .nl_pid = 0, - .nl_groups = 0, + .nl_groups = nlgroups, }; int rcvChunkSize = 1024; // expecting less than that int rcvoffset = 0; @@ -192,6 +192,27 @@ nlAppend(struct nlmsghdr *nlm, int totlen, const void *data, int datalen) return pos; } +#define NLMSG_TAIL(nmsg) \ + ((struct rtattr *) (((char *) (nmsg)) + NLMSG_ALIGN((nmsg)->nlmsg_len))) + +static struct rtattr *nlNest(struct nlmsghdr *nlm, int totlen, int type) +{ + struct rtattr *nest = NLMSG_TAIL(nlm); + + if (nlm->nlmsg_len + NLMSG_ALIGN(sizeof(*nest)) > totlen) + return NULL; + nest->rta_type = type; + nest->rta_len = RTA_LENGTH(0); + nlm->nlmsg_len += sizeof(*nest); + nlAlign(nlm); + return nest; +} + +static int nlNestEnd(struct nlmsghdr *nlm, struct rtattr *nest) +{ + nest->rta_len = (char *)NLMSG_TAIL(nlm) - (char *)nest; + return nlm->nlmsg_len; +} static int link_add(const char *type, @@ -287,7 +308,7 @@ link_add(const char *type, li->rta_len = (char *)nlm + nlm->nlmsg_len - (char *)li; - if (nlComm(nlm, &recvbuf, &recvbuflen) < 0) + if (nlComm(nlm, 0, &recvbuf, &recvbuflen) < 0) return -1; if (recvbuflen < NLMSG_LENGTH(0) || recvbuf == NULL) @@ -371,7 +392,7 @@ link_del(const char *name) if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) goto buffer_too_small; - if (nlComm(nlm, &recvbuf, &recvbuflen) < 0) + if (nlComm(nlm, 0, &recvbuf, &recvbuflen) < 0) return -1; if (recvbuflen < NLMSG_LENGTH(0) || recvbuf == NULL) @@ -568,6 +589,237 @@ configMacvtapTap(int tapfd, int vnet_hdr) return 0; } +#if 0 +static int +get_host_uuid(char *host_uuid, int len) +{ + const char *dmidecodearg[] = { "dmidecode", "-s", "system-uuid", NULL }; + const char *const dmidecodeenv[] = { "LC_ALL=C", NULL }; + char *binary, *newline; + int dmidecodestdout = -1; + int ret = -1; + pid_t child; + + binary = virFindFileInPath(dmidecodearg[0]); + if (binary == NULL || access(binary, X_OK) != 0) { + VIR_FREE(binary); + return -1; + } + dmidecodearg[0] = binary; + + if (virExec(dmidecodearg, dmidecodeenv, NULL, + &child, -1, &dmidecodestdout, NULL, VIR_EXEC_CLEAR_CAPS) < 0) { + ret = -1; + goto cleanup; + } + + if((ret = saferead(dmidecodestdout, host_uuid, len)) <= 0) { + ret = -1; + goto cleanup; + } + host_uuid[ret-1] = '\0'; + + /* strip newline */ + newline = strrchr(host_uuid, '\n'); + if (newline) + *newline = '\0'; + + ret = 0; + +cleanup: + VIR_FREE(binary); + + if (close(dmidecodestdout) < 0) + ret = -1; + + return ret; +} +#endif + +static int +portProfileIdMcast(const char *linkdev, + const char request, + const char *profileid, + const unsigned short *instance_uuid, + const unsigned short *host_uuid) +{ + struct rtattr *port_self; + char nlmsgbuf[512]; + struct nlmsghdr *nlm = (struct nlmsghdr *)nlmsgbuf, *resp; + struct ifinfomsg infomsg = { .ifi_family = AF_UNSPEC }; + char rtattbuf[256]; + struct rtattr *rta; + char *recvbuf = NULL; + int recvbuflen; + struct nlmsgerr *err; + int rc = 0; + + memset(&nlmsgbuf, 0, sizeof(nlmsgbuf)); + nlInit(nlm, NLM_F_REQUEST, RTM_SETLINK); + + if (!nlAppend(nlm, sizeof(nlmsgbuf), &infomsg, sizeof(infomsg))) + goto buffer_too_small; + + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_IFNAME, + linkdev, strlen(linkdev) + 1); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + + port_self = nlNest(nlm, sizeof(nlmsgbuf), IFLA_PORT_SELF); + if (!port_self) + return -1; + + switch (request) { + case PORT_REQUEST_ASSOCIATE: + if (profileid && strlen(profileid)) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), + IFLA_PORT_PROFILE, + profileid, strlen(profileid) + 1); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + if (instance_uuid) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), + IFLA_PORT_INSTANCE_UUID, + instance_uuid, PORT_UUID_MAX); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + if (host_uuid) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), + IFLA_PORT_HOST_UUID, + host_uuid, PORT_UUID_MAX); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + break; + case PORT_REQUEST_DISASSOCIATE: + break; + } + + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_REQUEST, + &request, 1); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + + nlNestEnd(nlm, port_self); + + if (nlComm(nlm, RTNLGRP_LINK, &recvbuf, &recvbuflen) < 0) + return -1; + + if (recvbuflen < NLMSG_LENGTH(0) || recvbuf == NULL) + goto malformed_resp; + + resp = (struct nlmsghdr *)recvbuf; + + switch (resp->nlmsg_type) { + case NLMSG_ERROR: + err = (struct nlmsgerr *)NLMSG_DATA(resp); + if (resp->nlmsg_len < NLMSG_LENGTH(sizeof(*err))) + goto malformed_resp; + + switch (-err->error) { + case 0: + break; + + default: + virReportSystemError(-err->error, + _("error setting port profile on %s"), + linkdev); + rc = -1; + } + break; + case NLMSG_DONE: + break; + + default: + goto malformed_resp; + } + + VIR_FREE(recvbuf); + + return rc; + +malformed_resp: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("malformed netlink response message")); + VIR_FREE(recvbuf); + return -1; + +buffer_too_small: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("internal buffer is too small")); + + return -1; +} + +int +setPortProfileId(const char *linkdev, + char *profileid, + unsigned short *instance_uuid, + unsigned short *host_uuid) +{ + int rc; + + rc = ifaceDown(linkdev); + if (rc != 0) { + virReportSystemError(errno, + _("cannot 'down' interface %s"), + linkdev); + return -1; + } + + rc = portProfileIdMcast(linkdev, PORT_REQUEST_ASSOCIATE, + profileid, instance_uuid, host_uuid); + if (rc) + return rc; + + rc = ifaceUp(linkdev); + if (rc != 0) { + virReportSystemError(errno, + _("cannot 'up' interface %s"), + linkdev); + return -1; + } + + return rc; +} + +int +unsetPortProfileId(const char *linkdev) +{ + int rc; + + rc = portProfileIdMcast(linkdev, PORT_REQUEST_DISASSOCIATE, + NULL, NULL, NULL); + if (rc) + return rc; + + rc = ifaceDown(linkdev); + if (rc != 0) { + virReportSystemError(errno, + _("cannot 'down' interface %s"), + linkdev); + return -1; + } + + return rc; +} /** * openMacvtapTap: diff --git a/src/util/macvtap.h b/src/util/macvtap.h index 5d4ea5e..136779e 100644 --- a/src/util/macvtap.h +++ b/src/util/macvtap.h @@ -37,6 +37,13 @@ int openMacvtapTap(const char *ifname, void delMacvtap(const char *ifname); +int setPortProfileId(const char *linkdev, + char *profile_id, + unsigned short *instance_uuid, + unsigned short *host_uuid); + +int unsetPortProfileId(const char *linkdev); + # endif /* WITH_MACVTAP */ # define MACVTAP_MODE_PRIVATE_STR "private"

3 2

[libvirt] [RFC PATCH] qemu: Add suport for pci-assign.configfd option
by Alex Williamson 24 May '10

24 May '10

Note: The configfd option for qemu is still pending upstream, so this patch will depend on that being accepted. This patch also depends on the the s/tapfd/vmfd/ rename patch posted to the list. This allows libvirt to open the PCI device sysfs config file prior to dropping privileges so qemu can access the full config space. Without this, a de-privileged qemu can only access the first 64 bytes of config space. Signed-off-by: Alex Williamson <alex.williamson(a)redhat.com> --- src/qemu/qemu_conf.c | 85 +++++++++++++++++++++++++++++++++++++++++++++++- src/qemu/qemu_conf.h | 8 ++++- src/qemu/qemu_driver.c | 2 + 3 files changed, 91 insertions(+), 4 deletions(-) diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c index d7bc798..a41012c 100644 --- a/src/qemu/qemu_conf.c +++ b/src/qemu/qemu_conf.c @@ -1345,6 +1345,48 @@ fail: return -1; } +void qemudParsePCIDeviceStrs(const char *qemu, unsigned long long *flags) +{ + const char *const qemuarg[] = { qemu, "-device pci-assign,?", NULL }; + const char *const qemuenv[] = { "LC_ALL=C", NULL }; + pid_t child; + int status; + int newstderr = -1; + + if (virExec(qemuarg, qemuenv, NULL, + &child, -1, NULL, &newstderr, VIR_EXEC_CLEAR_CAPS) < 0) + return; + + char *pciassign = NULL; + enum { MAX_PCI_OUTPUT_SIZE = 1024*4 }; + int len = virFileReadLimFD(newstderr, MAX_PCI_OUTPUT_SIZE, &pciassign); + if (len < 0) { + virReportSystemError(errno, + _("Unable to read %s pci-assign device output"), + qemu); + goto cleanup; + } + + if (strstr(pciassign, "pci-assign.configfd")) + *flags |= QEMUD_CMD_FLAG_PCI_CONFIGFD; + +cleanup: + VIR_FREE(pciassign); + close(newstderr); +rewait: + if (waitpid(child, &status, 0) != child) { + if (errno == EINTR) + goto rewait; + + VIR_ERROR(_("Unexpected exit status from qemu %d pid %lu"), + WEXITSTATUS(status), (unsigned long)child); + } + if (WEXITSTATUS(status) != 0) { + VIR_WARN("Unexpected exit status '%d', qemu probably failed", + WEXITSTATUS(status)); + } +} + int qemudExtractVersionInfo(const char *qemu, unsigned int *retversion, unsigned long long *retflags) { @@ -1378,6 +1420,9 @@ int qemudExtractVersionInfo(const char *qemu, &version, &is_kvm, &kvm_version) == -1) goto cleanup2; + if (flags & QEMUD_CMD_FLAG_DEVICE) + qemudParsePCIDeviceStrs(qemu, &flags); + if (retversion) *retversion = version; if (retflags) @@ -2887,8 +2932,29 @@ error: } +int +qemudOpenPCIConfig(virDomainHostdevDefPtr dev) +{ + char *path = NULL; + int configfd = -1; + + /* XXX don't hard code segment */ + if (virAsprintf(&path, "/sys/bus/pci/devices/0000:%02x:%02x.%01x/config", + dev->source.subsys.u.pci.bus, dev->source.subsys.u.pci.slot, + dev->source.subsys.u.pci.function) < 0) { + virReportOOMError(); + return -1; + } + + configfd = open(path, O_RDWR, 0); + + VIR_FREE(path); + + return configfd; +} + char * -qemuBuildPCIHostdevDevStr(virDomainHostdevDefPtr dev) +qemuBuildPCIHostdevDevStr(virDomainHostdevDefPtr dev, int configfd) { virBuffer buf = VIR_BUFFER_INITIALIZER; @@ -2898,6 +2964,8 @@ qemuBuildPCIHostdevDevStr(virDomainHostdevDefPtr dev) dev->source.subsys.u.pci.slot, dev->source.subsys.u.pci.function); virBufferVSprintf(&buf, ",id=%s", dev->info.alias); + if (configfd >= 0) + virBufferVSprintf(&buf, ",configfd=%d", configfd); if (qemuBuildDeviceAddressStr(&buf, &dev->info) < 0) goto error; @@ -4600,8 +4668,21 @@ int qemudBuildCommandLine(virConnectPtr conn, if (hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS && hostdev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI) { if (qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE) { + int configfd = -1; + if (qemuCmdFlags & QEMUD_CMD_FLAG_PCI_CONFIGFD) { + configfd = qemudOpenPCIConfig(hostdev); + + if (configfd >= 0) { + if (VIR_REALLOC_N(*vmfds, (*nvmfds)+1) < 0) { + close(configfd); + goto no_memory; + } + + (*vmfds)[(*nvmfds)++] = configfd; + } + } ADD_ARG_LIT("-device"); - if (!(devstr = qemuBuildPCIHostdevDevStr(hostdev))) + if (!(devstr = qemuBuildPCIHostdevDevStr(hostdev, configfd))) goto error; ADD_ARG(devstr); } else if (qemuCmdFlags & QEMUD_CMD_FLAG_PCIDEVICE) { diff --git a/src/qemu/qemu_conf.h b/src/qemu/qemu_conf.h index a101e47..64fab60 100644 --- a/src/qemu/qemu_conf.h +++ b/src/qemu/qemu_conf.h @@ -88,6 +88,7 @@ enum qemud_cmd_flags { QEMUD_CMD_FLAG_NO_HPET = (1LL << 33), /* -no-hpet flag is supported */ QEMUD_CMD_FLAG_NO_KVM_PIT = (1LL << 34), /* -no-kvm-pit-reinjection supported */ QEMUD_CMD_FLAG_TDF = (1LL << 35), /* -tdf flag (user-mode pit catchup) */ + QEMUD_CMD_FLAG_PCI_CONFIGFD = (1LL << 36), /* pci-assign.configfd */ }; /* Main driver state */ @@ -190,6 +191,9 @@ int qemudParseHelpStr (const char *qemu, unsigned int *is_kvm, unsigned int *kvm_version); +void qemudParsePCIDeviceStrs (const char *qemu, + unsigned long long *qemuCmdFlags); + int qemudBuildCommandLine (virConnectPtr conn, struct qemud_driver *driver, virDomainDefPtr def, @@ -242,7 +246,9 @@ char * qemuBuildSoundDevStr(virDomainSoundDefPtr sound); /* Legacy, pre device support */ char * qemuBuildPCIHostdevPCIDevStr(virDomainHostdevDefPtr dev); /* Current, best practice */ -char * qemuBuildPCIHostdevDevStr(virDomainHostdevDefPtr dev); +char * qemuBuildPCIHostdevDevStr(virDomainHostdevDefPtr dev, int configfd); + +int qemudOpenPCIConfig(virDomainHostdevDefPtr dev); /* Current, best practice */ char * qemuBuildChrChardevStr(virDomainChrDefPtr dev); diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index dd5bd24..219a973 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -7567,7 +7567,7 @@ static int qemudDomainAttachHostPciDevice(struct qemud_driver *driver, if (qemuDomainPCIAddressEnsureAddr(priv->pciaddrs, &hostdev->info) < 0) goto error; - if (!(devstr = qemuBuildPCIHostdevDevStr(hostdev))) + if (!(devstr = qemuBuildPCIHostdevDevStr(hostdev, -1))) goto error; }

3 5

[libvirt] [PATCH] Remove dead code after refactoring qemudDomainStart
by Jiri Denemark 24 May '10

24 May '10

The event is already generated and sent by qemudDomainObjStart, no need to do anything about here. --- src/qemu/qemu_driver.c | 3 --- 1 files changed, 0 insertions(+), 3 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 2f644c9..5c8ab38 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -6630,7 +6630,6 @@ static int qemudDomainStart(virDomainPtr dom) { struct qemud_driver *driver = dom->conn->privateData; virDomainObjPtr vm; int ret = -1; - virDomainEventPtr event = NULL; qemuDriverLock(driver); vm = virDomainFindByUUID(&driver->domains, dom->uuid); @@ -6661,8 +6660,6 @@ endjob: cleanup: if (vm) virDomainObjUnlock(vm); - if (event) - qemuDomainEventQueue(driver, event); qemuDriverUnlock(driver); return ret; } -- 1.7.1

2 2

[libvirt] [PATCH] add 802.1Qbh handling for port-profiles based on Stefan's previous patches
by Scott Feldman 23 May '10

23 May '10

From: Scott Feldman <scofeldm(a)cisco.com> This patch builds on the work recently posted by Stefan Berger. It builds on top of Stefan's two posted patches: [PATCH v7] vepa: parsing for 802.1Qb{g|h} XML [RFC][PATCH 1/3] vepa+vsi: Introduce dependency on libnl Stefan's patches 2/3 and 3/3 are incorporated into my patch. My patch finishes out the 802.1Qbh parts, which Stefan had mostly complete. I've tested using the recent kernel updates for VF_PORT netlink msgs and enic for Cisco's 10G Ethernet NIC. I tested many VMs, each with several direct interfaces, each configured with a port-profile per the XML. VM-to-VM, and VM-to-external work as expected. VM-to-VM on same host (using same NIC) works same as VM-to-VM where VMs are on diff hosts. I'm able to change settings on the port-profile while the VM is running to change the virtual port behaviour. For example, adjusting a QoS setting like rate limit. All VMs with interfaces using that port-profile immediatly see the effect of the change to the port-profile. I don't have a SR-IOV device to test so source dev is a non-SR-IOV device, but most of the code paths include support for specifing the source dev and VF index. We'll need to complete this by discovering the PF given the VF linkdev. Once we have the PF, we'll also have the VF index. All this info- mation is available from sysfs. I removed the RTM_GETLINK which was checking for status after the RTM_SETLINK call because there is no practical upper bound on when the port-profile association may complete. I didn't want to block in libvirt polling for status. For troubleshooting issues with port-profile association, we'll need to use an async method to get status. In a sense, (atleast for enic's case) successful port-profile association is indicated by link UP on the linkdev. I/O will not move until link is UP on the linkdev. To get more detailed status of the port-profile association for troubleshooting, we can rely on ip cmd line tool to get status. This is analogous to checking for link status on a real physical link using the ip cmd. Signed-off-by: Scott Feldman <scofeldm(a)cisco.com> Signed-off-by: Roopa Prabhu<roprabhu(a)cisco.com> --- configure.ac | 16 + src/util/macvtap.c | 598 +++++++++++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 598 insertions(+), 16 deletions(-) diff --git a/configure.ac b/configure.ac index 36ba703..885b0ae 100644 --- a/configure.ac +++ b/configure.ac @@ -2005,13 +2005,26 @@ if test "$with_macvtap" != "no" ; then fi AM_CONDITIONAL([WITH_MACVTAP], [test "$with_macvtap" = "yes"]) +AC_TRY_COMPILE([ #include <sys/socket.h> + #include <linux/rtnetlink.h> ], + [ int x = IFLA_PORT_MAX; ], + [ with_virtualport=yes ], + [ with_virtualport=no ]) +if test "$with_virtualport" = "yes"; then + val=1 +else + val=0 +fi +AC_DEFINE_UNQUOTED([WITH_VIRTUALPORT], $val, [whether vsi vepa support is enabled]) +AM_CONDITIONAL([WITH_VIRTUALPORT], [test "$with_virtualport" = "yes"]) + dnl netlink library LIBNL_CFLAGS="" LIBNL_LIBS="" -if test "$with_macvtap" = "yes"; then +if test "$with_macvtap" = "yes" || "$with_virtualport" = "yes"; then PKG_CHECK_MODULES([LIBNL], [libnl-1 >= $LIBNL_REQUIRED], [ ], [ AC_MSG_ERROR([libnl >= $LIBNL_REQUIRED is required for macvtap support]) @@ -2084,6 +2097,7 @@ AC_MSG_NOTICE([ Network: $with_network]) AC_MSG_NOTICE([Libvirtd: $with_libvirtd]) AC_MSG_NOTICE([ netcf: $with_netcf]) AC_MSG_NOTICE([ macvtap: $with_macvtap]) +AC_MSG_NOTICE([virtport: $with_virtualport]) AC_MSG_NOTICE([]) AC_MSG_NOTICE([Storage Drivers]) AC_MSG_NOTICE([]) diff --git a/src/util/macvtap.c b/src/util/macvtap.c index da81447..50f1b89 100644 --- a/src/util/macvtap.c +++ b/src/util/macvtap.c @@ -27,7 +27,7 @@ #include <config.h> -#if WITH_MACVTAP +#if WITH_MACVTAP || WITH_VIRTUALPORT # include <stdio.h> # include <errno.h> @@ -41,6 +41,8 @@ # include <linux/rtnetlink.h> # include <linux/if_tun.h> +# include <netlink/msg.h> + # include "util.h" # include "memory.h" # include "logging.h" @@ -58,15 +60,24 @@ # define MACVTAP_NAME_PREFIX "macvtap" # define MACVTAP_NAME_PATTERN "macvtap%d" +# define MICROSEC_PER_SEC (1000 * 1000) + static int associatePortProfileId(const char *macvtap_ifname, + const char *linkdev, const virVirtualPortProfileDefPtr virtPort, - int vf, - const unsigned char *vmuuid); + const unsigned char *vmuuid, + const unsigned char *hostuuid); static int disassociatePortProfileId(const char *macvtap_ifname, + const char *linkdev, const virVirtualPortProfileDefPtr virtPort); +enum virVirtualPortOp { + ASSOCIATE = 0x1, + DISASSOCIATE = 0x2, +}; + static int nlOpen(void) { @@ -159,6 +170,169 @@ err_exit: } +# ifdef IFLA_VF_PORT_MAX + +/** + * nlCommWaitSuccess: + * + * @nlmsg: pointer to netlink message + * @nl_grousp: the netlink multicast groups to send to + * @respbuf: pointer to pointer where response buffer will be allocated + * @respbuflen: pointer to integer holding the size of the response buffer + * on return of the function. + * @to_usecs: timeout in microseconds to wait for a success message + * to be returned + * + * Send the given message to the netlink multicast group and receive + * responses. Skip responses indicating an error and keep on receiving + * responses until a success response is returned. + * Returns 0 on success, -1 on error. In case of error, no response + * buffer will be returned. + */ +static int +nlCommWaitSuccess(struct nlmsghdr *nlmsg, int nl_groups, + char **respbuf, int *respbuflen, long to_usecs) +{ + int rc = 0; + struct sockaddr_nl nladdr = { + .nl_family = AF_NETLINK, + .nl_pid = getpid(), + .nl_groups = nl_groups, + }; + int rcvChunkSize = 1024; // expecting less than that + int rcvoffset = 0; + ssize_t nbytes; + int n; + struct timeval tv = { + .tv_sec = to_usecs / MICROSEC_PER_SEC, + .tv_usec = to_usecs % MICROSEC_PER_SEC, + }; + fd_set rfds; + bool gotvalid = false; + int fd = nlOpen(); + static uint32_t seq = 0x1234; + uint32_t myseq = seq++; + uint32_t mypid = getpid(); + + if (fd < 0) + return -1; + + nlmsg->nlmsg_pid = mypid; + nlmsg->nlmsg_seq = myseq; + nlmsg->nlmsg_flags |= NLM_F_ACK; + + nbytes = sendto(fd, (void *)nlmsg, nlmsg->nlmsg_len, 0, + (struct sockaddr *)&nladdr, sizeof(nladdr)); + if (nbytes < 0) { + virReportSystemError(errno, + "%s", _("cannot send to netlink socket")); + rc = -1; + goto err_exit; + } + fprintf(stderr,"sent %d bytes\n", (int)nbytes); + + while (!gotvalid) { + rcvoffset = 0; + while (1) { + socklen_t addrlen = sizeof(nladdr); + + if (VIR_REALLOC_N(*respbuf, rcvoffset+rcvChunkSize) < 0) { + virReportOOMError(); + rc = -1; + goto err_exit; + } + + FD_ZERO(&rfds); + FD_SET(fd, &rfds); + + n = select(fd + 1, &rfds, NULL, NULL, &tv); + if (n == 0) { + fprintf(stderr,"Select timed out.\n"); + rc = -1; + goto err_exit; + } + + nbytes = recvfrom(fd, &((*respbuf)[rcvoffset]), rcvChunkSize, 0, + (struct sockaddr *)&nladdr, &addrlen); + fprintf(stderr,"got something... %d bytes\n",(int)nbytes); + if (nbytes < 0) { + if (errno == EAGAIN || errno == EINTR) + continue; + virReportSystemError(errno, "%s", + _("error receiving from netlink socket")); + rc = -1; + goto err_exit; + } + rcvoffset += nbytes; + break; + } + *respbuflen = rcvoffset; + + /* check message for error */ + if (*respbuflen > NLMSG_LENGTH(0) && *respbuf != NULL) { + struct nlmsghdr *resp = (struct nlmsghdr *)*respbuf; + struct nlmsgerr *err; + + fprintf(stderr,"resp->nlmsg_type=%d\n", resp->nlmsg_type); + fprintf(stderr,"resp->nlmsg_flags=0x%x\n", resp->nlmsg_flags); + fprintf(stderr,"resp->nlmsg_seq=%d (%d)\n", resp->nlmsg_seq, myseq); + fprintf(stderr,"resp->nlmsg_pid=%d (%d)\n", resp->nlmsg_pid, mypid); + + if (resp->nlmsg_pid != mypid || + resp->nlmsg_seq != myseq) + continue; + + /* skip reflected message */ + if (resp->nlmsg_type & 0x10) + continue; + + switch (resp->nlmsg_type) { + case NLMSG_ERROR: + err = (struct nlmsgerr *)NLMSG_DATA(resp); + if (resp->nlmsg_len >= NLMSG_LENGTH(sizeof(*err))) { + fprintf(stderr,"error %d\n", -err->error); + if (-err->error != EOPNOTSUPP) { + /* assuming error msg from daemon */ + fprintf(stderr,"Got error %d, but assuming its response from lldpad: len = %d\n", + -err->error, + *respbuflen); + gotvalid = true; + break; + } + } + /* whatever this is, skip it */ + VIR_FREE(*respbuf); + *respbuf = NULL; + *respbuflen = 0; + fprintf(stderr,"Skipping error resp. msg.\n"); + break; + + case NLMSG_DONE: + gotvalid = true; + break; + + default: + VIR_FREE(*respbuf); + *respbuf = NULL; + *respbuflen = 0; + break; + } + } + } + +err_exit: + if (rc == -1) { + VIR_FREE(*respbuf); + *respbuf = NULL; + *respbuflen = 0; + } + + nlClose(fd); + return rc; +} + +#endif + static struct rtattr * rtattrCreate(char *buffer, int bufsize, int type, const void *data, int datalen) @@ -204,6 +378,8 @@ nlAppend(struct nlmsghdr *nlm, int totlen, const void *data, int datalen) } +# if WITH_MACVTAP + static int link_add(const char *type, const unsigned char *macaddress, int macaddrsize, @@ -651,9 +827,10 @@ create_name: } if (associatePortProfileId(cr_ifname, + net->data.direct.linkdev, &net->data.direct.virtPortProfile, - -1, - vmuuid) != 0) { + vmuuid, + NULL /* hostuuid */) != 0) { rc = -1; goto link_del_exit; } @@ -685,6 +862,7 @@ create_name: disassociate_exit: disassociatePortProfileId(cr_ifname, + net->data.direct.linkdev, &net->data.direct.virtPortProfile); link_del_exit: @@ -707,21 +885,392 @@ delMacvtap(virDomainNetDefPtr net) { if (net->ifname) { disassociatePortProfileId(net->ifname, + net->data.direct.linkdev, &net->data.direct.virtPortProfile); link_del(net->ifname); } } -#endif +# endif + + +# ifdef IFLA_PORT_MAX + +static int +doPortProfileOpSetLink(bool multicast, + const char *ifname, int ifindex, + const char *profileId, + struct ifla_port_vsi *portVsi, + const unsigned char *instanceId, + const unsigned char *hostUUID, + int32_t vf, + uint8_t op) +{ + int rc = 0; + char nlmsgbuf[256]; + struct nlmsghdr *nlm = (struct nlmsghdr *)nlmsgbuf, *resp; + struct nlmsgerr *err; + char rtattbuf[64]; + struct rtattr *rta, *vfports, *vfport; + struct ifinfomsg ifinfo = { + .ifi_family = AF_UNSPEC, + .ifi_index = ifindex, + }; + char *recvbuf = NULL; + int recvbuflen = 0; + + memset(&nlmsgbuf, 0, sizeof(nlmsgbuf)); + + nlInit(nlm, NLM_F_REQUEST, RTM_SETLINK); + + if (!nlAppend(nlm, sizeof(nlmsgbuf), &ifinfo, sizeof(ifinfo))) + goto buffer_too_small; + + if (vf == PORT_SELF_VF) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_SELF, NULL, 0); + } else { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_VF_PORTS, NULL, 0); + if (!rta) + goto buffer_too_small; + + if (!(vfports = nlAppend(nlm, sizeof(nlmsgbuf), + rtattbuf, rta->rta_len))) + goto buffer_too_small; + + /* beging nesting vfports */ + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_VF_PORT, NULL, 0); + } + + if (!rta) + goto buffer_too_small; + + if (!(vfport = nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len))) + goto buffer_too_small; + + if (profileId) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_PROFILE, + profileId, strlen(profileId) + 1); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (portVsi) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_VSI_TYPE, + portVsi, sizeof(*portVsi)); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (instanceId) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_INSTANCE_UUID, + instanceId, VIR_UUID_BUFLEN); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (hostUUID) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_HOST_UUID, + hostUUID, VIR_UUID_BUFLEN); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (vf != PORT_SELF_VF) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_VF, + &vf, sizeof(vf)); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_REQUEST, + &op, sizeof(op)); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + + /* end nesting of vport */ + vfport->rta_len = (char *)nlm + nlm->nlmsg_len - (char *)vfport; + + if (vf != PORT_SELF_VF) { + /* end nesting of vfports */ + vfports->rta_len = (char *)nlm + nlm->nlmsg_len - (char *)vfports; + } + + if (!multicast) { + if (nlComm(nlm, &recvbuf, &recvbuflen) < 0) + return -1; + } else { + if (nlCommWaitSuccess(nlm, RTMGRP_LINK, &recvbuf, &recvbuflen, + 5 * MICROSEC_PER_SEC) < 0) + return -1; + } + + if (recvbuflen < NLMSG_LENGTH(0) || recvbuf == NULL) + goto malformed_resp; + + resp = (struct nlmsghdr *)recvbuf; + + switch (resp->nlmsg_type) { + case NLMSG_ERROR: + err = (struct nlmsgerr *)NLMSG_DATA(resp); + if (resp->nlmsg_len < NLMSG_LENGTH(sizeof(*err))) + goto malformed_resp; + + switch (-err->error) { + case 0: + break; + + default: + virReportSystemError(-err->error, + _("error during virtual port configuration of %s interface"), ifname); + rc = -1; + } + break; + + case NLMSG_DONE: + break; + + default: + goto malformed_resp; + } + + VIR_FREE(recvbuf); + + return rc; + +malformed_resp: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("malformed netlink response message")); + VIR_FREE(recvbuf); + return -1; + +buffer_too_small: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("internal buffer is too small")); + return -1; +} + + +static int +doPortProfileOpCommon(bool multicast, + const char *ifname, int ifindex, + const char *profileId, + struct ifla_port_vsi *portVsi, + const unsigned char *instanceId, + const unsigned char *hostUUID, + int32_t vf, + uint8_t op) +{ + int rc; + + rc = doPortProfileOpSetLink(multicast, + ifname, ifindex, + profileId, + portVsi, + instanceId, + hostUUID, + vf, + op); + + if (rc != 0) { + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("sending of PortProfileRequest failed.\n")); + return rc; + } + + return rc; +} + +# endif /* IFLA_PORT_MAX */ + +static int +doPortProfileOp8021Qbg(const char *ifname, + const virVirtualPortProfileDefPtr virtPort, + int32_t vf, + enum virVirtualPortOp virtPortOp) +{ + int rc; + +# ifndef IFLA_VF_PORT_MAX + + (void)ifname; + (void)virtPort; + (void)vf; + (void)virtPortOp; + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Kernel VF Port support was missing at compile time.")); + rc = 1; + +# else /* IFLA_VF_PORT_MAX */ + + int op = PORT_REQUEST_ASSOCIATE; + struct ifla_port_vsi portVsi = { + .vsi_mgr_id = virtPort->u.virtPort8021Qbg.managerID, + .vsi_type_version = virtPort->u.virtPort8021Qbg.typeIDVersion, + }; + bool multicast = true; + int ifindex; + if (ifaceGetIndex(true, ifname, &ifindex) != 0) { + rc = 1; + goto err_exit; + } + + portVsi.vsi_type_id[2] = virtPort->u.virtPort8021Qbg.typeID >> 16; + portVsi.vsi_type_id[1] = virtPort->u.virtPort8021Qbg.typeID >> 8; + portVsi.vsi_type_id[0] = virtPort->u.virtPort8021Qbg.typeID; + + switch (virtPortOp) { + case ASSOCIATE: + op = PORT_REQUEST_ASSOCIATE; + break; + case DISASSOCIATE: + op = PORT_REQUEST_DISASSOCIATE; + break; + default: + macvtapError(VIR_ERR_INTERNAL_ERROR, + _("operation type %d not supported"), op); + rc = 1; + goto err_exit; + } + + rc = doPortProfileOpCommon(multicast, NULL, ifindex, + NULL, + &portVsi, + virtPort->u.virtPort8021Qbg.instanceID, + NULL, + vf, + op); + +err_exit: + +# endif /* IFLA_VF_PORT_MAX */ + + return rc; +} + + +static int +doPortProfileOp8021Qbh(const char *ifname, + const virVirtualPortProfileDefPtr virtPort, + int32_t vf, + const unsigned char *host_uuid, + const unsigned char *vm_uuid, + enum virVirtualPortOp virtPortOp) +{ + int rc; + +# ifndef IFLA_VF_PORT_MAX + + (void)ifname; + (void)virtPort; + (void)host_uuid; + (void)vm_uuid; + (void)virtPortOp; + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Kernel VF Port support was missing at compile time.")); + rc = 1; + +# else /* IFLA_VF_PORT_MAX */ + + int op = PORT_REQUEST_ASSOCIATE; + bool multicast = false; + int ifindex; + + if (ifaceGetIndex(true, ifname, &ifindex) != 0) { + rc = 1; + goto err_exit; + } + + switch (virtPortOp) { + case ASSOCIATE: + op = PORT_REQUEST_ASSOCIATE; + break; + case DISASSOCIATE: + op = PORT_REQUEST_DISASSOCIATE; + break; + default: + macvtapError(VIR_ERR_INTERNAL_ERROR, + _("operation type %d not supported"), op); + rc = 1; + goto err_exit; + } + + rc = doPortProfileOpCommon(multicast, ifname, ifindex, + virtPort->u.virtPort8021Qbh.profileID, + NULL, + vm_uuid, + host_uuid, + vf, + op); + + switch (virtPortOp) { + case ASSOCIATE: + ifaceUp(ifname); + break; + case DISASSOCIATE: + ifaceDown(ifname); + break; + } + +err_exit: + +# endif /* IFLA_VF_PORT_MAX */ + + return rc; +} + +static void +getPhysfn(const char *linkdev, + int32_t *vf, + char **physfndev) +{ + bool virtfn = false; + + if (virtfn) { + + // XXX: if linkdev is SR-IOV VF, then set vf = VF index + // XXX: and set linkdev = PF device + // XXX: need to use get_physical_function_linux() or + // XXX: something like that to get PF + // XXX: device and figure out VF index + + } else { + + /* Not SR-IOV VF: physfndev is linkdev and VF index + * refers to linkdev self + */ + + *vf = PORT_SELF_VF; + *physfndev = (char *)linkdev; + } +} /** * associatePortProfile * * @macvtap_ifname: The name of the macvtap device + * @linkdev: The link device in case of macvtap * @virtPort: pointer to the object holding port profile parameters - * @vf: virtual function number, -1 if to be ignored * @vmuuid : the UUID of the virtual machine + * @hostuuid : the UUID of the host machine * * Associate a port on a swtich with a profile. This function * may notify a kernel driver or an external daemon to run @@ -734,15 +1283,19 @@ delMacvtap(virDomainNetDefPtr net) */ static int associatePortProfileId(const char *macvtap_ifname, + const char *linkdev, const virVirtualPortProfileDefPtr virtPort, - int vf, - const unsigned char *vmuuid) + const unsigned char *vmuuid, + const unsigned char *hostuuid) { + char *physfndev; + int32_t vf; int rc = 0; + VIR_DEBUG("Associating port profile '%p' on link device '%s'", virtPort, macvtap_ifname); - (void)vf; - (void)vmuuid; + + getPhysfn(linkdev, &vf, &physfndev); switch (virtPort->virtPortType) { case VIR_VIRTUALPORT_NONE: @@ -750,11 +1303,14 @@ associatePortProfileId(const char *macvtap_ifname, break; case VIR_VIRTUALPORT_8021QBG: - + rc = doPortProfileOp8021Qbg(macvtap_ifname, virtPort, vf, + ASSOCIATE); break; case VIR_VIRTUALPORT_8021QBH: - + rc = doPortProfileOp8021Qbh(physfndev, virtPort, vf, + hostuuid, vmuuid, + ASSOCIATE); break; } @@ -766,6 +1322,7 @@ associatePortProfileId(const char *macvtap_ifname, * disassociatePortProfile * * @macvtap_ifname: The name of the macvtap device + * @linkdev: The link device in case of macvtap * @virtPort: point to object holding port profile parameters * * Returns 0 in case of success, != 0 otherwise with error @@ -773,25 +1330,36 @@ associatePortProfileId(const char *macvtap_ifname, */ static int disassociatePortProfileId(const char *macvtap_ifname, + const char *linkdev, const virVirtualPortProfileDefPtr virtPort) { + char *physfndev; + int32_t vf; int rc = 0; + VIR_DEBUG("Disassociating port profile id '%p' on link device '%s' ", virtPort, macvtap_ifname); + getPhysfn(linkdev, &vf, &physfndev); + switch (virtPort->virtPortType) { case VIR_VIRTUALPORT_NONE: case VIR_VIRTUALPORT_TYPE_LAST: break; case VIR_VIRTUALPORT_8021QBG: - + rc = doPortProfileOp8021Qbg(macvtap_ifname, virtPort, vf, + DISASSOCIATE); break; case VIR_VIRTUALPORT_8021QBH: - + rc = doPortProfileOp8021Qbh(physfndev, virtPort, vf, + NULL, NULL, + DISASSOCIATE); break; } return rc; } + +#endif

1 0

[libvirt] [PATCH] libvirtd: mark strings for translation, including --help output
by Jim Meyering 22 May '10

22 May '10

Saw these while fixing the previous bug: >From ab3d0ba4f5c004a45da5b5a240a0b5caef21df99 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Thu, 20 May 2010 10:01:32 +0200 Subject: [PATCH] libvirtd: mark strings for translation, including --help output * daemon/libvirtd.c (daemonForkIntoBackground, main): Mark strings for translation. (usage): Rework --help so that it is translatable, replacing each embedded, configuration-dependent, macro with an `%s'. libvirtd: don't ignore virInitialize failure * daemon/libvirtd.c (main): Diagnose virInitialize failure and exit nonzero. --- daemon/libvirtd.c | 36 +++++++++++++++++++++--------------- 1 files changed, 21 insertions(+), 15 deletions(-) diff --git a/daemon/libvirtd.c b/daemon/libvirtd.c index aac2d08..d52b6eb 100644 --- a/daemon/libvirtd.c +++ b/daemon/libvirtd.c @@ -484,8 +484,8 @@ static int daemonForkIntoBackground(void) { if (ret == 1 && status != 0) { fprintf(stderr, - "error: %s. Check /var/log/messages or run without " - "--daemon for more info.\n", + _("error: %s. Check /var/log/messages or run without " + "--daemon for more info.\n"), virDaemonErrTypeToString(status)); } _exit(ret == 1 && status == 0 ? 0 : 1); @@ -2963,7 +2963,7 @@ static void usage (const char *argv0) { fprintf (stderr, - "\n\ + _("\n\ Usage:\n\ %s [options]\n\ \n\ @@ -2981,27 +2981,33 @@ libvirt management daemon:\n\ Default paths:\n\ \n\ Configuration file (unless overridden by -f):\n\ - " SYSCONF_DIR "/libvirt/libvirtd.conf\n\ + %s/libvirt/libvirtd.conf\n\ \n\ Sockets (as root):\n\ - " LOCAL_STATE_DIR "/run/libvirt/libvirt-sock\n\ - " LOCAL_STATE_DIR "/run/libvirt/libvirt-sock-ro\n\ + %s/run/libvirt/libvirt-sock\n\ + %s/run/libvirt/libvirt-sock-ro\n\ \n\ Sockets (as non-root):\n\ $HOME/.libvirt/libvirt-sock (in UNIX abstract namespace)\n\ \n\ TLS:\n\ - CA certificate: " LIBVIRT_CACERT "\n\ - Server certificate: " LIBVIRT_SERVERCERT "\n\ - Server private key: " LIBVIRT_SERVERKEY "\n\ + CA certificate: %s\n\ + Server certificate: %s\n\ + Server private key: %s\n\ \n\ PID file (unless overridden by --pid-file):\n\ %s\n\ -\n", - argv0, - REMOTE_PID_FILE[0] != '\0' - ? REMOTE_PID_FILE - : "(disabled in ./configure)"); +\n"), + argv0, + SYSCONF_DIR, + LOCAL_STATE_DIR, + LOCAL_STATE_DIR, + LIBVIRT_CACERT, + LIBVIRT_SERVERCERT, + LIBVIRT_SERVERKEY, + (REMOTE_PID_FILE[0] != '\0' + ? REMOTE_PID_FILE + : "(disabled in ./configure)")); } enum { @@ -3083,7 +3089,7 @@ int main(int argc, char **argv) { return 2; default: - fprintf (stderr, "libvirtd: internal error: unknown flag: %c\n", + fprintf (stderr, _("libvirtd: internal error: unknown flag: %c\n"), c); exit (EXIT_FAILURE); } -- 1.7.1.259.g3aef8

2 6

[libvirt] [PATCH v7] vepa: parsing for 802.1Qb{g|h} XML
by Stefan Berger 22 May '10

22 May '10

Below is David Alan's original patch with lots of changes. In particular, it now parses the following two XML descriptions, one for 802.1Qbg and 802.1Qbh and stored the data internally. The actual triggering of the switch setup protocol has not been implemented here but the relevant code to do that should go into the functions associatePortProfileId() and disassociatePortProfileId(). <interface type='direct'> <source dev='eth0.100' mode='vepa'/> <model type='virtio'/> <virtualport type='802.1Qbg'> <parameters managerid='12' typeid='0x123456' typeidversion='1' instanceid='fa9b7fff-b0a0-4893-8e0e-beef4ff18f8f'/> </virtualport> <filterref filter='clean-traffic'/> </interface> <interface type='direct'> <source dev='eth0.100' mode='vepa'/> <model type='virtio'/> <virtualport type='802.1Qbh'> <parameters profileid='my_profile'/> </virtualport> </interface> I'd suggest to use this patch as a base for triggering the setup protocol with the 802.1Qb{g|h} switch. Changes from V6 to V7: - make sure that the error code returned by openMacvtapTap() is a negative number in case the associatePortProfileId() function failed. Changes from V5 to V6: - renaming vsi in the XML to virtualport - replace all occurrences of vsi in the source as well Changes from V4 to V5: - removing mode and MAC address parameters from the functions that will communicate with the hareware diretctly or indirectly Changes from V3 to V4: - moving the associate and disassociate functions to the end of the file for subsequent patches to easier make them generally available for export - passing the macvtap interface name rather than the link device since this otherwise gives funny side effects when using netlink messages where IFLA_IFNAME and IFLA_ADDRESS are specified and the link dev all of a sudden gets the MAC address of the macvtap interface. - Removing rc = -1 error indications in the case of 802.1Qbg|h setup in case we wanted to use hook scripts for the setup and so the setup doesn't fail here. Changes from V2 to V3: - if instance ID UUID is not supplied it will automatically be generated - adapted schema to make instance ID UUID optional - added test case Some of the changes from V1 to V2: - parser and XML generator have been separated into their own functions so they can be re-used elsewhere (passthrough case for example) - Adapted XML parser and generator support the above shown type (802.1Qbg, 802.1Qbh). - Adapted schema to above XML - Adapted test XML to above XML - Passing through the VM's UUID which seems to be necessary for 802.1Qbh -- sorry no host UUID - adding virtual function ID to association function, in case it's necessary to use (for SR-IOV) Signed-off-by: Stefan Berger <stefanb(a)us.ibm.com> >From a945107f047c7cd71f9c1b74fd74c47d8cdc3670 Mon Sep 17 00:00:00 2001 From: David Allan <dallan(a)redhat.com> Date: Fri, 12 Mar 2010 13:25:04 -0500 Subject: [PATCH 1/1] POC of port profile id support * Modified schema per DanPB's feedback * Added test for modified schema --- docs/schemas/domain.rng | 69 ++++++++++++++ src/conf/domain_conf.c | 155 +++++++++++++++++++++++++++++++++ src/conf/domain_conf.h | 35 +++++++ src/qemu/qemu_conf.c | 18 +-- src/qemu/qemu_conf.h | 5 - src/qemu/qemu_driver.c | 17 +-- src/util/macvtap.c | 151 +++++++++++++++++++++++++++----- src/util/macvtap.h | 10 +- tests/domainschemadata/portprofile.xml | 36 +++++++ 9 files changed, 446 insertions(+), 50 deletions(-) create mode 100644 tests/domainschemadata/portprofile.xml Index: libvirt-acl/docs/schemas/domain.rng =================================================================== --- libvirt-acl.orig/docs/schemas/domain.rng +++ libvirt-acl/docs/schemas/domain.rng @@ -817,6 +817,9 @@ </optional> <empty/> </element> + <optional> + <ref name="virtualPortProfile"/> + </optional> <ref name="interface-options"/> </interleave> </group> @@ -902,6 +905,45 @@ </optional> </interleave> </define> + <define name="virtualPortProfile"> + <choice> + <group> + <element name="virtualport"> + <attribute name="type"> + <value>802.1Qbg</value> + </attribute> + <element name="parameters"> + <attribute name="managerid"> + <ref name="uint8range"/> + </attribute> + <attribute name="typeid"> + <ref name="uint24range"/> + </attribute> + <attribute name="typeidversion"> + <ref name="uint8range"/> + </attribute> + <optional> + <attribute name="instanceid"> + <ref name="UUID"/> + </attribute> + </optional> + </element> + </element> + </group> + <group> + <element name="virtualport"> + <attribute name="type"> + <value>802.1Qbh</value> + </attribute> + <element name="parameters"> + <attribute name="profileid"> + <ref name="virtualPortProfileID"/> + </attribute> + </element> + </element> + </group> + </choice> + </define>  @@ -1769,4 +1811,31 @@ <param name="pattern">[a-zA-Z0-9_\.:]+</param> </data> </define> + <define name="uint8range"> + <choice> + <data type="string"> + <param name="pattern">0x[0-9a-fA-F]{1,2}</param> + </data> + <data type="int"> + <param name="minInclusive">0</param> + <param name="maxInclusive">255</param> + </data> + </choice> + </define> + <define name="uint24range"> + <choice> + <data type="string"> + <param name="pattern">0x[0-9a-fA-F]{1,6}</param> + </data> + <data type="int"> + <param name="minInclusive">0</param> + <param name="maxInclusive">16777215</param> + </data> + </choice> + </define> + <define name="virtualPortProfileID"> + <data type="string"> + <param name="maxLength">39</param> + </data> + </define> </grammar> Index: libvirt-acl/src/conf/domain_conf.c =================================================================== --- libvirt-acl.orig/src/conf/domain_conf.c +++ libvirt-acl/src/conf/domain_conf.c @@ -242,6 +242,11 @@ VIR_ENUM_IMPL(virDomainNetdevMacvtap, VI "private", "bridge") +VIR_ENUM_IMPL(virVirtualPort, VIR_VIRTUALPORT_TYPE_LAST, + "none", + "802.1Qbg", + "802.1Qbh") + VIR_ENUM_IMPL(virDomainClockOffset, VIR_DOMAIN_CLOCK_OFFSET_LAST, "utc", "localtime", @@ -1807,6 +1812,145 @@ cleanup: } +static void +virVirtualPortProfileDefParseXML(xmlNodePtr node, + virVirtualPortProfileDefPtr virtPort) +{ + char *virtPortType; + char *virtPortManagerID = NULL; + char *virtPortTypeID = NULL; + char *virtPortTypeIDVersion = NULL; + char *virtPortInstanceID = NULL; + char *virtPortProfileID = NULL; + xmlNodePtr cur = node->children; + + virtPortType = virXMLPropString(node, "type"); + if (!virtPortType) + return; + + while (cur != NULL) { + if (xmlStrEqual(cur->name, BAD_CAST "parameters")) { + + virtPortManagerID = virXMLPropString(cur, "managerid"); + virtPortTypeID = virXMLPropString(cur, "typeid"); + virtPortTypeIDVersion = virXMLPropString(cur, "typeidversion"); + virtPortInstanceID = virXMLPropString(cur, "instanceid"); + virtPortProfileID = virXMLPropString(cur, "profileid"); + + break; + } + + cur = cur->next; + } + + virtPort->virtPortType = VIR_VIRTUALPORT_NONE; + + switch (virVirtualPortTypeFromString(virtPortType)) { + + case VIR_VIRTUALPORT_8021QBG: + if (virtPortManagerID != NULL && virtPortTypeID != NULL && + virtPortTypeIDVersion != NULL) { + unsigned int val; + + if ((virStrToLong_ui(virtPortManagerID, NULL, 10, &val) && + virStrToLong_ui(virtPortManagerID, NULL, 16, &val) ) || + val > 0xff) + break; + + virtPort->u.virtPort8021Qbg.managerID = (uint8_t)val; + + if ((virStrToLong_ui(virtPortTypeID, NULL, 10, &val) && + virStrToLong_ui(virtPortTypeID, NULL, 16, &val) ) || + val > 0xffffff) + break; + + virtPort->u.virtPort8021Qbg.typeID = (uint32_t)val; + + if ((virStrToLong_ui(virtPortTypeIDVersion, NULL, 10, &val) && + virStrToLong_ui(virtPortTypeIDVersion, NULL, 16, &val) ) || + val > 0xff) + break; + + virtPort->u.virtPort8021Qbg.typeIDVersion = (uint8_t)val; + + if (virtPortInstanceID != NULL) { + if (virUUIDParse(virtPortInstanceID, virtPort->u.virtPort8021Qbg.instanceID)) + break; + } else { + if (virUUIDGenerate(virtPort->u.virtPort8021Qbg.instanceID)) + break; + } + + virtPort->virtPortType = VIR_VIRTUALPORT_8021QBG; + } + break; + + case VIR_VIRTUALPORT_8021QBH: + if (virtPortProfileID != NULL) { + if (virStrcpyStatic(virtPort->u.virtPort8021Qbh.profileID, + virtPortProfileID) != NULL) + virtPort->virtPortType = VIR_VIRTUALPORT_8021QBH; + } + break; + + + default: + case VIR_VIRTUALPORT_NONE: + case VIR_VIRTUALPORT_TYPE_LAST: + break; + } + + VIR_FREE(virtPortManagerID); + VIR_FREE(virtPortTypeID); + VIR_FREE(virtPortTypeIDVersion); + VIR_FREE(virtPortInstanceID); + VIR_FREE(virtPortProfileID); + VIR_FREE(virtPortType); +} + + +static void +virVirtualPortProfileFormat(virBufferPtr buf, virVirtualPortProfileDefPtr virtPort, + const char *indent) +{ + char uuidstr[VIR_UUID_STRING_BUFLEN]; + + if (virtPort->virtPortType == VIR_VIRTUALPORT_NONE) + return; + + virBufferVSprintf(buf, "%s<virtualport type='%s'>\n", + indent, virVirtualPortTypeToString(virtPort->virtPortType)); + + switch (virtPort->virtPortType) { + case VIR_VIRTUALPORT_NONE: + case VIR_VIRTUALPORT_TYPE_LAST: + break; + + case VIR_VIRTUALPORT_8021QBG: + virUUIDFormat(virtPort->u.virtPort8021Qbg.instanceID, + uuidstr); + virBufferVSprintf(buf, + "%s <parameters managerid='%d' typeid='%d' " + "typeidversion='%d' instanceid='%s'/>\n", + indent, + virtPort->u.virtPort8021Qbg.managerID, + virtPort->u.virtPort8021Qbg.typeID, + virtPort->u.virtPort8021Qbg.typeIDVersion, + uuidstr); + break; + + case VIR_VIRTUALPORT_8021QBH: + virBufferVSprintf(buf, + "%s <parameters profileid='%s'/>\n", + indent, + virtPort->u.virtPort8021Qbh.profileID); + break; + } + + virBufferVSprintf(buf, "%s</virtualport>\n", indent); +} + + /* Parse the XML definition for a network interface * @param node XML nodeset to parse for net definition * @return 0 on success, -1 on failure @@ -1832,6 +1976,8 @@ virDomainNetDefParseXML(virCapsPtr caps, char *devaddr = NULL; char *mode = NULL; virNWFilterHashTablePtr filterparams = NULL; + virVirtualPortProfileDef virtPort; + bool virtPortParsed = false; if (VIR_ALLOC(def) < 0) { virReportOOMError(); @@ -1873,6 +2019,11 @@ virDomainNetDefParseXML(virCapsPtr caps, xmlStrEqual(cur->name, BAD_CAST "source")) { dev = virXMLPropString(cur, "dev"); mode = virXMLPropString(cur, "mode"); + } else if ((virtPortParsed == false) && + (def->type == VIR_DOMAIN_NET_TYPE_DIRECT) && + xmlStrEqual(cur->name, BAD_CAST "virtualport")) { + virVirtualPortProfileDefParseXML(cur, &virtPort); + virtPortParsed = true; } else if ((network == NULL) && ((def->type == VIR_DOMAIN_NET_TYPE_SERVER) || (def->type == VIR_DOMAIN_NET_TYPE_CLIENT) || @@ -2048,6 +2199,8 @@ virDomainNetDefParseXML(virCapsPtr caps, } else def->data.direct.mode = VIR_DOMAIN_NETDEV_MACVTAP_MODE_VEPA; + def->data.direct.virtPortProfile = virtPort; + def->data.direct.linkdev = dev; dev = NULL; @@ -5140,6 +5293,8 @@ virDomainNetDefFormat(virBufferPtr buf, virBufferVSprintf(buf, " mode='%s'", virDomainNetdevMacvtapTypeToString(def->data.direct.mode)); virBufferAddLit(buf, "/>\n"); + virVirtualPortProfileFormat(buf, &def->data.direct.virtPortProfile, + " "); break; case VIR_DOMAIN_NET_TYPE_USER: Index: libvirt-acl/src/conf/domain_conf.h =================================================================== --- libvirt-acl.orig/src/conf/domain_conf.h +++ libvirt-acl/src/conf/domain_conf.h @@ -259,6 +259,39 @@ enum virDomainNetdevMacvtapType { }; +enum virVirtualPortType { + VIR_VIRTUALPORT_NONE, + VIR_VIRTUALPORT_8021QBG, + VIR_VIRTUALPORT_8021QBH, + + VIR_VIRTUALPORT_TYPE_LAST, +}; + +# ifdef IFLA_VF_PORT_PROFILE_MAX +# define LIBVIRT_IFLA_VF_PORT_PROFILE_MAX IFLA_VF_PORT_PROFILE_MAX +# else +# define LIBVIRT_IFLA_VF_PORT_PROFILE_MAX 40 +# endif + +/* profile data for macvtap (VEPA) */ +typedef struct _virVirtualPortProfileDef virVirtualPortProfileDef; +typedef virVirtualPortProfileDef *virVirtualPortProfileDefPtr; +struct _virVirtualPortProfileDef { + enum virVirtualPortType virtPortType; + union { + struct { + uint8_t managerID; + uint32_t typeID; // 24 bit valid + uint8_t typeIDVersion; + unsigned char instanceID[VIR_UUID_BUFLEN]; + } virtPort8021Qbg; + struct { + char profileID[LIBVIRT_IFLA_VF_PORT_PROFILE_MAX]; + } virtPort8021Qbh; + } u; +}; + + /* Stores the virtual network interface configuration */ typedef struct _virDomainNetDef virDomainNetDef; typedef virDomainNetDef *virDomainNetDefPtr; @@ -290,6 +323,7 @@ struct _virDomainNetDef { struct { char *linkdev; int mode; + virVirtualPortProfileDef virtPortProfile; } direct; } data; char *ifname; @@ -1089,6 +1123,7 @@ VIR_ENUM_DECL(virDomainSeclabel) VIR_ENUM_DECL(virDomainClockOffset) VIR_ENUM_DECL(virDomainNetdevMacvtap) +VIR_ENUM_DECL(virVirtualPort) VIR_ENUM_DECL(virDomainTimerName) VIR_ENUM_DECL(virDomainTimerTrack) Index: libvirt-acl/src/util/macvtap.c =================================================================== --- libvirt-acl.orig/src/util/macvtap.c +++ libvirt-acl/src/util/macvtap.c @@ -43,6 +43,7 @@ # include "util.h" # include "memory.h" +# include "logging.h" # include "macvtap.h" # include "interface.h" # include "conf/domain_conf.h" @@ -57,6 +58,16 @@ # define MACVTAP_NAME_PREFIX "macvtap" # define MACVTAP_NAME_PATTERN "macvtap%d" + +static int associatePortProfileId(const char *macvtap_ifname, + const virVirtualPortProfileDefPtr virtPort, + int vf, + const unsigned char *vmuuid); + +static int disassociatePortProfileId(const char *macvtap_ifname, + const virVirtualPortProfileDefPtr virtPort); + + static int nlOpen(void) { int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE); @@ -567,39 +578,38 @@ configMacvtapTap(int tapfd, int vnet_hdr return 0; } - - /** * openMacvtapTap: * Create an instance of a macvtap device and open its tap character * device. * @tgifname: Interface name that the macvtap is supposed to have. May * be NULL if this function is supposed to choose a name - * @macaddress: The MAC address for the macvtap device - * @linkdev: The interface name of the NIC to connect to the external bridge - * @mode_str: String describing the mode. Valid are 'bridge', 'vepa' and - * 'private'. + * @net: pointer to the virDomainNetDef object describing the direct + * type if an interface * @res_ifname: Pointer to a string pointer where the actual name of the * interface will be stored into if everything succeeded. It is up * to the caller to free the string. + * @vnet_hdr: Whether to enable IFF_VNET_HDR on the interface + * @vmuuid: The (raw) UUID of the VM * * Returns file descriptor of the tap device in case of success, * negative value otherwise with error reported. * + * Open a macvtap device and trigger the switch setup protocol + * if valid port profile parameters were provided. */ int openMacvtapTap(const char *tgifname, - const unsigned char *macaddress, - const char *linkdev, - int mode, + virDomainNetDefPtr net, char **res_ifname, - int vnet_hdr) + int vnet_hdr, + const unsigned char *vmuuid) { const char *type = "macvtap"; int c, rc; char ifname[IFNAMSIZ]; int retries, do_retry = 0; - uint32_t macvtapMode = macvtapModeFromInt(mode); + uint32_t macvtapMode = macvtapModeFromInt(net->data.direct.mode); const char *cr_ifname; int ifindex; @@ -616,7 +626,7 @@ openMacvtapTap(const char *tgifname, return -1; } cr_ifname = tgifname; - rc = link_add(type, macaddress, 6, tgifname, linkdev, + rc = link_add(type, net->mac, 6, tgifname, net->data.direct.linkdev, macvtapMode, &do_retry); if (rc) return -1; @@ -626,7 +636,8 @@ create_name: for (c = 0; c < 8192; c++) { snprintf(ifname, sizeof(ifname), MACVTAP_NAME_PATTERN, c); if (ifaceGetIndex(false, ifname, &ifindex) == ENODEV) { - rc = link_add(type, macaddress, 6, ifname, linkdev, + rc = link_add(type, net->mac, 6, ifname, + net->data.direct.linkdev, macvtapMode, &do_retry); if (rc == 0) break; @@ -639,6 +650,14 @@ create_name: cr_ifname = ifname; } + if (associatePortProfileId(cr_ifname, + &net->data.direct.virtPortProfile, + -1, + vmuuid) != 0) { + rc = -1; + goto link_del_exit; + } + rc = ifaceUp(cr_ifname); if (rc != 0) { virReportSystemError(errno, @@ -647,7 +666,7 @@ create_name: "MAC address"), cr_ifname); rc = -1; - goto link_del_exit; + goto disassociate_exit; } rc = openTap(cr_ifname, 10); @@ -656,14 +675,18 @@ create_name: if (configMacvtapTap(rc, vnet_hdr) < 0) { close(rc); rc = -1; - goto link_del_exit; + goto disassociate_exit; } *res_ifname = strdup(cr_ifname); } else - goto link_del_exit; + goto disassociate_exit; return rc; +disassociate_exit: + disassociatePortProfileId(cr_ifname, + &net->data.direct.virtPortProfile); + link_del_exit: link_del(cr_ifname); @@ -673,14 +696,102 @@ link_del_exit: /** * delMacvtap: - * @ifname : The name of the macvtap interface + * @net: pointer to virDomainNetDef object * - * Delete an interface given its name. + * Delete an interface given its name. Disassociate + * it with the switch if port profile parameters + * were provided. */ void -delMacvtap(const char *ifname) +delMacvtap(virDomainNetDefPtr net) { - link_del(ifname); + if (net->ifname) { + disassociatePortProfileId(net->ifname, + &net->data.direct.virtPortProfile); + link_del(net->ifname); + } } #endif + + +/** + * associatePortProfile + * + * @macvtap_ifname: The name of the macvtap device + * @virtPort: pointer to the object holding port profile parameters + * @vf: virtual function number, -1 if to be ignored + * @vmuuid : the UUID of the virtual machine + * + * Associate a port on a swtich with a profile. This function + * may notify a kernel driver or an external daemon to run + * the setup protocol. If profile parameters were not supplied + * by the user, then this function returns without doing + * anything. + * + * Returns 0 in case of success, != 0 otherwise with error + * having been reported. + */ +static int +associatePortProfileId(const char *macvtap_ifname, + const virVirtualPortProfileDefPtr virtPort, + int vf, + const unsigned char *vmuuid) +{ + int rc = 0; + VIR_DEBUG("Associating port profile '%p' on link device '%s'", + virtPort, macvtap_ifname); + (void)vf; + (void)vmuuid; + + switch (virtPort->virtPortType) { + case VIR_VIRTUALPORT_NONE: + case VIR_VIRTUALPORT_TYPE_LAST: + break; + + case VIR_VIRTUALPORT_8021QBG: + + break; + + case VIR_VIRTUALPORT_8021QBH: + + break; + } + + return rc; +} + + +/** + * disassociatePortProfile + * + * @macvtap_ifname: The name of the macvtap device + * @virtPort: point to object holding port profile parameters + * + * Returns 0 in case of success, != 0 otherwise with error + * having been reported. + */ +static int +disassociatePortProfileId(const char *macvtap_ifname, + const virVirtualPortProfileDefPtr virtPort) +{ + int rc = 0; + VIR_DEBUG("Disassociating port profile id '%p' on link device '%s' ", + virtPort, macvtap_ifname); + + switch (virtPort->virtPortType) { + case VIR_VIRTUALPORT_NONE: + case VIR_VIRTUALPORT_TYPE_LAST: + break; + + case VIR_VIRTUALPORT_8021QBG: + + break; + + case VIR_VIRTUALPORT_8021QBH: + + break; + } + + return rc; +} Index: libvirt-acl/src/util/macvtap.h =================================================================== --- libvirt-acl.orig/src/util/macvtap.h +++ libvirt-acl/src/util/macvtap.h @@ -27,15 +27,15 @@ # if defined(WITH_MACVTAP) # include "internal.h" +# include "conf/domain_conf.h" int openMacvtapTap(const char *ifname, - const unsigned char *macaddress, - const char *linkdev, - int mode, + virDomainNetDefPtr net, char **res_ifname, - int vnet_hdr); + int vnet_hdr, + const unsigned char *vmuuid); -void delMacvtap(const char *ifname); +void delMacvtap(virDomainNetDefPtr net); # endif /* WITH_MACVTAP */ Index: libvirt-acl/tests/domainschemadata/portprofile.xml =================================================================== --- /dev/null +++ libvirt-acl/tests/domainschemadata/portprofile.xml @@ -0,0 +1,36 @@ +<domain type='lxc'> + <name>portprofile</name> + <uuid>00000000-0000-0000-0000-000000000000</uuid> + <memory>1048576</memory> + <os> + <type>exe</type> + <init>/sh</init> + </os> + <devices> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + <virtualport type='802.1Qbg'> + <parameters managerid='12' typeid='1193046' typeidversion='1' + instanceid='fa9b7fff-b0a0-4893-8e0e-beef4ff18f8f'/> + </virtualport> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + <virtualport type='802.1Qbg'> + <parameters managerid='12' typeid='1193046' typeidversion='1'/> + </virtualport> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + <virtualport type='802.1Qbh'> + <parameters profileid='my_profile'/> + </virtualport> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + </interface> + </devices> +</domain> Index: libvirt-acl/src/qemu/qemu_conf.h =================================================================== --- libvirt-acl.orig/src/qemu/qemu_conf.h +++ libvirt-acl/src/qemu/qemu_conf.h @@ -274,9 +274,8 @@ qemudOpenVhostNet(virDomainNetDefPtr net int qemudPhysIfaceConnect(virConnectPtr conn, struct qemud_driver *driver, virDomainNetDefPtr net, - char *linkdev, - int brmode, - unsigned long long qemuCmdFlags); + unsigned long long qemuCmdFlags, + const unsigned char *vmuuid); int qemudProbeMachineTypes (const char *binary, virCapsGuestMachinePtr **machines, Index: libvirt-acl/src/qemu/qemu_driver.c =================================================================== --- libvirt-acl.orig/src/qemu/qemu_driver.c +++ libvirt-acl/src/qemu/qemu_driver.c @@ -3702,10 +3702,8 @@ static void qemudShutdownVMDaemon(struct def = vm->def; for (i = 0; i < def->nnets; i++) { virDomainNetDefPtr net = def->nets[i]; - if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) { - if (net->ifname) - delMacvtap(net->ifname); - } + if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) + delMacvtap(net); } #endif @@ -7464,9 +7462,8 @@ static int qemudDomainAttachNetDevice(vi } if ((tapfd = qemudPhysIfaceConnect(conn, driver, net, - net->data.direct.linkdev, - net->data.direct.mode, - qemuCmdFlags)) < 0) + qemuCmdFlags, + vm->def->uuid)) < 0) return -1; } @@ -8509,10 +8506,8 @@ qemudDomainDetachNetDevice(struct qemud_ virNWFilterTearNWFilter(detach); #if WITH_MACVTAP - if (detach->type == VIR_DOMAIN_NET_TYPE_DIRECT) { - if (detach->ifname) - delMacvtap(detach->ifname); - } + if (detach->type == VIR_DOMAIN_NET_TYPE_DIRECT) + delMacvtap(detach); #endif if ((driver->macFilter) && (detach->ifname != NULL)) { Index: libvirt-acl/src/qemu/qemu_conf.c =================================================================== --- libvirt-acl.orig/src/qemu/qemu_conf.c +++ libvirt-acl/src/qemu/qemu_conf.c @@ -1470,9 +1470,8 @@ int qemudPhysIfaceConnect(virConnectPtr conn, struct qemud_driver *driver, virDomainNetDefPtr net, - char *linkdev, - int brmode, - unsigned long long qemuCmdFlags) + unsigned long long qemuCmdFlags, + const unsigned char *vmuuid) { int rc; #if WITH_MACVTAP @@ -1484,8 +1483,7 @@ qemudPhysIfaceConnect(virConnectPtr conn net->model && STREQ(net->model, "virtio")) vnet_hdr = 1; - rc = openMacvtapTap(net->ifname, net->mac, linkdev, brmode, - &res_ifname, vnet_hdr); + rc = openMacvtapTap(net->ifname, net, &res_ifname, vnet_hdr, vmuuid); if (rc >= 0) { VIR_FREE(net->ifname); net->ifname = res_ifname; @@ -1505,17 +1503,16 @@ qemudPhysIfaceConnect(virConnectPtr conn if (err) { close(rc); rc = -1; - delMacvtap(net->ifname); + delMacvtap(net); } } } #else (void)conn; (void)net; - (void)linkdev; - (void)brmode; (void)qemuCmdFlags; (void)driver; + (void)vmuuid; qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("No support for macvtap device")); rc = -1; @@ -4135,9 +4132,8 @@ int qemudBuildCommandLine(virConnectPtr goto no_memory; } else if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) { int tapfd = qemudPhysIfaceConnect(conn, driver, net, - net->data.direct.linkdev, - net->data.direct.mode, - qemuCmdFlags); + qemuCmdFlags, + def->uuid); if (tapfd < 0) goto error;

2 2

[libvirt] [RFC] [PATCH 2/3] vepa+vsi: add handling of 802.1Qbg using netlink messages
by Stefan Berger 22 May '10

22 May '10

This is so far a more or less experimental patch that adds code for communicating with the external lldpad daemon using the recently added netlink messages. It's communicating using multicast netlink messages in case of 802.1Qbg and unicast using 802.1Qbh. In the multicast case I am currently expecting an immediate response back from the (dummy) server to indicate the status of the port profile setup (IFLA_PORT_RESPONSE). A real server should probably then mimic the kernel driver and wait for a RTM_GETLINK to return the response... After adding netlink code for 802.1Qbg it wasn't difficult to add code for 802.1Qbh anymore, so some code for 802.1Qbh is already here. I am also adding detection code to configure.ac on whether the recently added netlink messages and the defines are available and set the WITH_VSI_VEPA #define if it is. Lots of debugging output is still in this patch. Changes from V1 to V2: - replaced all occurrences of 'vsi' - following tree Signed-off-by: Stefan Berger <stefanb(a)linux.vnet.ibm.com> --- configure.ac | 16 + src/util/macvtap.c | 597 ++++++++++++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 605 insertions(+), 8 deletions(-) Index: libvirt-acl/src/util/macvtap.c =================================================================== --- libvirt-acl.orig/src/util/macvtap.c +++ libvirt-acl/src/util/macvtap.c @@ -27,7 +27,7 @@ #include <config.h> -#if WITH_MACVTAP +#if WITH_MACVTAP || WITH_VIRTUALPORT # include <stdio.h> # include <errno.h> @@ -41,6 +41,8 @@ # include <linux/rtnetlink.h> # include <linux/if_tun.h> +# include <netlink/msg.h> + # include "util.h" # include "memory.h" # include "logging.h" @@ -58,6 +60,10 @@ # define MACVTAP_NAME_PREFIX "macvtap" # define MACVTAP_NAME_PATTERN "macvtap%d" +# define MICROSEC_PER_SEC (1000 * 1000) + + +# define USE_IFLA_PORT_SELF static int associatePortProfileId(const char *macvtap_ifname, const virVirtualPortProfileDefPtr virtPort, @@ -67,6 +73,11 @@ static int associatePortProfileId(const static int disassociatePortProfileId(const char *macvtap_ifname, const virVirtualPortProfileDefPtr virtPort); +enum virVirtualPortOp { + ASSOCIATE = 0x1, + DISASSOCIATE = 0x2, +}; + static int nlOpen(void) { @@ -159,6 +170,156 @@ err_exit: } +/** + * nlCommWaitSuccess: + * + * @nlmsg: pointer to netlink message + * @nl_grousp: the netlink multicast groups to send to + * @respbuf: pointer to pointer where response buffer will be allocated + * @respbuflen: pointer to integer holding the size of the response buffer + * on return of the function. + * @to_usecs: timeout in microseconds to wait for a success message + * to be returned + * + * Send the given message to the netlink multicast group and receive + * responses. Skip responses indicating an error and keep on receiving + * responses until a success response is returned. + * Returns 0 on success, -1 on error. In case of error, no response + * buffer will be returned. + */ +static int +nlCommWaitSuccess(struct nlmsghdr *nlmsg, int nl_groups, + char **respbuf, int *respbuflen, long to_usecs) +{ + int rc = 0; + struct sockaddr_nl nladdr = { + .nl_family = AF_NETLINK, + .nl_pid = 0, + .nl_groups = nl_groups, + }; + int rcvChunkSize = 1024; // expecting less than that + int rcvoffset = 0; + ssize_t nbytes; + int n; + struct timeval tv = { + .tv_sec = to_usecs / MICROSEC_PER_SEC, + .tv_usec = to_usecs % MICROSEC_PER_SEC, + }; + fd_set rfds; + bool gotvalid = false; + int fd = nlOpen(); + static uint32_t seq = 0x1234; + uint32_t myseq = seq++; + uint32_t mypid = getpid(); + + if (fd < 0) + return -1; + + nlmsg->nlmsg_pid = mypid; + nlmsg->nlmsg_seq = myseq; + nlmsg->nlmsg_flags |= NLM_F_ACK; + + nbytes = sendto(fd, (void *)nlmsg, nlmsg->nlmsg_len, 0, + (struct sockaddr *)&nladdr, sizeof(nladdr)); + if (nbytes < 0) { + virReportSystemError(errno, + "%s", _("cannot send to netlink socket")); + rc = -1; + goto err_exit; + } + fprintf(stderr,"sent %d bytes\n", (int)nbytes); + + while (!gotvalid) { + rcvoffset = 0; + while (1) { + socklen_t addrlen = sizeof(nladdr); + + if (VIR_REALLOC_N(*respbuf, rcvoffset+rcvChunkSize) < 0) { + virReportOOMError(); + rc = -1; + goto err_exit; + } + + FD_ZERO(&rfds); + FD_SET(fd, &rfds); + + n = select(fd + 1, &rfds, NULL, NULL, &tv); + if (n == 0) { + fprintf(stderr,"Select timed out.\n"); + rc = -1; + goto err_exit; + } + + nbytes = recvfrom(fd, &((*respbuf)[rcvoffset]), rcvChunkSize, 0, + (struct sockaddr *)&nladdr, &addrlen); + fprintf(stderr,"got something... %d bytes\n",(int)nbytes); + if (nbytes < 0) { + if (errno == EAGAIN || errno == EINTR) + continue; + virReportSystemError(errno, "%s", + _("error receiving from netlink socket")); + rc = -1; + goto err_exit; + } + rcvoffset += nbytes; + break; + } + *respbuflen = rcvoffset; + + /* check message for error */ + if (*respbuflen > NLMSG_LENGTH(0) && *respbuf != NULL) { + struct nlmsghdr *resp = (struct nlmsghdr *)*respbuf; + struct nlmsgerr *err; + + fprintf(stderr,"resp->nlmsg_type=%d\n", resp->nlmsg_type); + fprintf(stderr,"resp->nlmsg_flags=0x%x\n", resp->nlmsg_flags); + fprintf(stderr,"resp->nlmsg_seq=%d (%d)\n", resp->nlmsg_seq, myseq); + fprintf(stderr,"resp->nlmsg_pid=%d (%d)\n", resp->nlmsg_pid, mypid); + + if (resp->nlmsg_pid != mypid || + resp->nlmsg_seq != myseq) + continue; + + switch (resp->nlmsg_type) { + default: + case NLMSG_ERROR: + err = (struct nlmsgerr *)NLMSG_DATA(resp); + if (resp->nlmsg_len >= NLMSG_LENGTH(sizeof(*err))) { + fprintf(stderr,"error %d\n", -err->error); + if (-err->error != EOPNOTSUPP) { + /* assuming error msg from daemon */ + fprintf(stderr,"Got error %d, but assuming its response from lldpad: len = %d\n", + -err->error, + *respbuflen); + gotvalid = true; + break; + } + } + /* whatever this is, skip it */ + VIR_FREE(*respbuf); + *respbuf = NULL; + *respbuflen = 0; + fprintf(stderr,"Skipping error resp. msg.\n"); + break; + case NLMSG_DONE: + gotvalid = true; + break; + } + } + } + +err_exit: + if (rc == -1) { + VIR_FREE(*respbuf); + *respbuf = NULL; + *respbuflen = 0; + } + + nlClose(fd); + return rc; +} + + static struct rtattr * rtattrCreate(char *buffer, int bufsize, int type, const void *data, int datalen) @@ -204,6 +365,8 @@ nlAppend(struct nlmsghdr *nlm, int totle } +# if WITH_MACVTAP + static int link_add(const char *type, const unsigned char *macaddress, int macaddrsize, @@ -652,7 +815,7 @@ create_name: rc = associatePortProfileId(cr_ifname, &net->data.direct.virtPortProfile, - -1, + PORT_SELF_VF, vmuuid); if (rc != 0) goto link_del_exit; @@ -711,8 +874,422 @@ delMacvtap(virDomainNetDefPtr net) } } -#endif +# endif + + +# ifdef IFLA_PORT_MAX + +static struct nla_policy ifla_policy[IFLA_MAX + 1] = +{ + [IFLA_VF_PORTS] = { .type = NLA_NESTED }, +}; + +static struct nla_policy ifla_vf_ports_policy[IFLA_VF_PORT_MAX + 1] = +{ + [IFLA_VF_PORT] = { .type = NLA_NESTED }, +}; + +static struct nla_policy ifla_port_policy[IFLA_PORT_MAX + 1] = +{ + [IFLA_PORT_RESPONSE] = { .type = NLA_U16 }, +}; + + +static int +getPortProfileStatus(struct nlmsghdr *nlm, uint16_t *status) +{ + int rc = 1; + const char *msg = NULL; + struct nlattr *tb[IFLA_MAX+1], + *tb2[IFLA_VF_PORT_MAX + 1], + *tb3[IFLA_PORT_MAX+1]; + + if (nlmsg_parse(nlm, sizeof(struct ifinfomsg), + (struct nlattr **)&tb, IFLA_MAX, ifla_policy)) { + msg = _("error parsing netlink response.\n"); + goto err_exit; + } + +# ifndef USE_IFLA_PORT_SELF + if (tb[IFLA_VF_PORTS]) { + if (nla_parse_nested(tb2, IFLA_VF_PORT_MAX, tb[IFLA_VF_PORTS], + ifla_vf_ports_policy)) { + msg = _("error parsing nested IFLA_VF_PORTS part"); + goto err_exit; + } + if (tb2[IFLA_VF_PORT]) { + if (nla_parse_nested(tb3, IFLA_PORT_MAX, tb2[IFLA_VF_PORT], + ifla_port_policy)) { + msg = _("error parsing nested IFLA_VF_PORT part"); + goto err_exit; + } +# else + (void)tb2; + (void)ifla_vf_ports_policy; + if (tb[IFLA_PORT_SELF]) { + if (1) { + if (nla_parse_nested(tb3, IFLA_PORT_MAX, tb[IFLA_PORT_SELF], + ifla_port_policy)) { + msg = _("error parsing nested IFLA_VF_PORT part"); + goto err_exit; + } +# endif + + if (tb3[IFLA_PORT_RESPONSE]) { + *status = *(uint16_t *)RTA_DATA(tb3[IFLA_PORT_RESPONSE]); + rc = 0; + } else { + msg = _("no IFLA_PORT_RESPONSE found in netlink message"); + goto err_exit; + } + } else { + msg = _("no IFLA_VF_PORT found in netlink message"); + goto err_exit; + } + } else { + msg = _("no IFLA_VF_PORTS found in netlink message"); + goto err_exit; + } + + err_exit: + if (msg) + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", msg); + + return rc; +} + + +static int +doPortProfileOpSetLink(bool multicast, + const char *ifname, int ifindex, + const char *profileId, + struct ifla_port_vsi *portVsi, + const unsigned char *instanceId, + const unsigned char *hostUUID, + int32_t vf, + uint8_t op) +{ + int rc = 0; + char nlmsgbuf[256]; + struct nlmsghdr *nlm = (struct nlmsghdr *)nlmsgbuf, *resp; + struct nlmsgerr *err; + char rtattbuf[64]; + struct rtattr *rta, *vfports, *vfport; + struct ifinfomsg ifinfo = { + .ifi_family = AF_UNSPEC, + .ifi_index = ifindex, + }; + char *recvbuf = NULL; + int recvbuflen = 0; + uint16_t status; + + memset(&nlmsgbuf, 0, sizeof(nlmsgbuf)); + + nlInit(nlm, NLM_F_REQUEST, RTM_SETLINK); + + if (!nlAppend(nlm, sizeof(nlmsgbuf), &ifinfo, sizeof(ifinfo))) + goto buffer_too_small; + +# ifndef USE_IFLA_PORT_SELF + + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_VF_PORTS, NULL, 0); + if (!rta) + goto buffer_too_small; + + if (!(vfports = nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len))) + goto buffer_too_small; + + /* beging nesting vfports */ + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_VF_PORT, NULL, 0); +# else + (void)vfports; + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_SELF, NULL, 0); +# endif + if (!rta) + goto buffer_too_small; + + if (!(vfport = nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len))) + goto buffer_too_small; + + /* begin nesting of vfport */ + if (profileId) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_PROFILE, + profileId, strlen(profileId) + 1); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (portVsi) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_VSI_TYPE, + portVsi, sizeof(*portVsi)); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (instanceId) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_INSTANCE_UUID, + instanceId, VIR_UUID_BUFLEN); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + if (hostUUID) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_HOST_UUID, + hostUUID, VIR_UUID_BUFLEN); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (vf >= 0) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_VF, + &vf, sizeof(vf)); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_REQUEST, + &op, sizeof(op)); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + + /* end nesting of vport */ + vfport->rta_len = (char *)nlm + nlm->nlmsg_len - (char *)vfport; + +# ifndef USE_IFLA_PORT_SELF + /* end nesting of vfports */ + vfports->rta_len = (char *)nlm + nlm->nlmsg_len - (char *)vfports; +# endif + + if (!multicast) { + if (nlComm(nlm, &recvbuf, &recvbuflen) < 0) + return -1; + } else { + if (nlCommWaitSuccess(nlm, RTMGRP_LINK, &recvbuf, &recvbuflen, + 5 * MICROSEC_PER_SEC) < 0) + return -1; + } + + if (recvbuflen < NLMSG_LENGTH(0) || recvbuf == NULL) + goto malformed_resp; + + resp = (struct nlmsghdr *)recvbuf; + + switch (resp->nlmsg_type) { + case NLMSG_ERROR: + err = (struct nlmsgerr *)NLMSG_DATA(resp); + if (resp->nlmsg_len < NLMSG_LENGTH(sizeof(*err))) + goto malformed_resp; + + switch (-err->error) { + case 0: + break; + + default: + virReportSystemError(-err->error, + _("error during virtual port configuration of %s interface"), ifname); + rc = -1; + } + break; + + case NLMSG_DONE: + rc = getPortProfileStatus(resp, &status); + if (rc == 0 && status != PORT_VDP_RESPONSE_SUCCESS) { + macvtapError(VIR_ERR_INTERNAL_ERROR, + _("Response code from port profile setup: % d"), + status); + rc = -1; + } + break; + + default: + goto malformed_resp; + } + + VIR_FREE(recvbuf); + + return rc; + +malformed_resp: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("malformed netlink response message")); + VIR_FREE(recvbuf); + return -1; + +buffer_too_small: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("internal buffer is too small")); + return -1; +} + + +static int +doPortProfileOpCommon(bool multicast, + const char *ifname, int ifindex, + const char *profileId, + struct ifla_port_vsi *portVsi, + const unsigned char *instanceId, + const unsigned char *hostUUID, + int32_t vf, + uint8_t op) +{ + int rc; + + rc = doPortProfileOpSetLink(multicast, + ifname, ifindex, + profileId, + portVsi, + instanceId, + hostUUID, + vf, + op); + + if (rc != 0) { + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Sending of PortProfileRequest failed.\n")); + return rc; + } + + return rc; +} + +# endif /* IFLA_PORT_MAX */ + +static int +doPortProfileOp8021Qbg(const char *ifname, + const virVirtualPortProfileDefPtr virtPort, + int32_t vf, + enum virVirtualPortOp virtPortOp) +{ + int rc; + +# ifndef IFLA_VF_PORT_MAX + + (void)ifname; + (void)virtport; + (void)vf; + (void)virtPortOp; + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Kernel VF Port support was missing at compile time.")); + rc = 1; + +# else /* IFLA_VF_PORT_MAX */ + + int op = PORT_REQUEST_ASSOCIATE; + struct ifla_port_vsi portVsi = { + .vsi_mgr_id = virtPort->u.virtPort8021Qbg.managerID, + .vsi_type_version = virtPort->u.virtPort8021Qbg.typeIDVersion, + }; + bool multicast = true; + int ifindex; + + if (ifaceGetIndex(true, ifname, &ifindex) != 0) { + rc = 1; + goto err_exit; + } + + portVsi.vsi_type_id[2] = virtPort->u.virtPort8021Qbg.typeID >> 16; + portVsi.vsi_type_id[1] = virtPort->u.virtPort8021Qbg.typeID >> 8; + portVsi.vsi_type_id[0] = virtPort->u.virtPort8021Qbg.typeID; + + switch (virtPortOp) { + case ASSOCIATE: + op = PORT_REQUEST_ASSOCIATE; + break; + case DISASSOCIATE: + op = PORT_REQUEST_DISASSOCIATE; + break; + default: + macvtapError(VIR_ERR_INTERNAL_ERROR, + _("operation type %d not supported"), op); + rc = 1; + goto err_exit; + } + + rc = doPortProfileOpCommon(multicast, NULL, ifindex, + NULL, + &portVsi, + virtPort->u.virtPort8021Qbg.instanceID, + NULL, + vf, + op); + +err_exit: + +# endif /* IFLA_VF_PORT_MAX */ + + return rc; +} + + +static int +doPortProfileOp8021Qbh(const virVirtualPortProfileDefPtr virtPort, + const unsigned char *host_uuid, + const unsigned char *vm_uuid, + enum virVirtualPortOp virtPortOp) +{ + int rc; + +# ifndef IFLA_VF_PORT_MAX + + (void)virtPort; + (void)host_uuid; + (void)vm_uuid; + (void)virtPortOp; + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Kernel VF Port support was missing at compile time.")); + rc = 1; + +# else /* IFLA_VF_PORT_MAX */ + + int op = PORT_REQUEST_ASSOCIATE; + bool multicast = false; + + switch (virtPortOp) { + case ASSOCIATE: + op = PORT_REQUEST_ASSOCIATE; + break; + case DISASSOCIATE: + op = PORT_REQUEST_DISASSOCIATE; + break; + default: + macvtapError(VIR_ERR_INTERNAL_ERROR, + _("operation type %d not supported"), op); + rc = 1; + goto err_exit; + } + + rc = doPortProfileOpCommon(multicast, NULL, -1, + virtPort->u.virtPort8021Qbh.profileID, + NULL, + host_uuid, + vm_uuid, + -1, + op); + +err_exit: + +# endif /* IFLA_VF_PORT_MAX */ + + return rc; +} /** * associatePortProfile @@ -749,11 +1326,13 @@ associatePortProfileId(const char *macvt break; case VIR_VIRTUALPORT_8021QBG: - + rc = doPortProfileOp8021Qbg(macvtap_ifname, virtPort, vf, + ASSOCIATE); break; case VIR_VIRTUALPORT_8021QBH: - + rc = doPortProfileOp8021Qbh(virtPort, vmuuid /* host_uuid */, vmuuid, + ASSOCIATE); break; } @@ -784,13 +1363,17 @@ disassociatePortProfileId(const char *ma break; case VIR_VIRTUALPORT_8021QBG: - + rc = doPortProfileOp8021Qbg(macvtap_ifname, virtPort, -1, + DISASSOCIATE); break; case VIR_VIRTUALPORT_8021QBH: - + rc = doPortProfileOp8021Qbh(virtPort, NULL, NULL, + DISASSOCIATE); break; } return rc; } + +#endif Index: libvirt-acl/configure.ac =================================================================== --- libvirt-acl.orig/configure.ac +++ libvirt-acl/configure.ac @@ -2005,13 +2005,26 @@ if test "$with_macvtap" != "no" ; then fi AM_CONDITIONAL([WITH_MACVTAP], [test "$with_macvtap" = "yes"]) +AC_TRY_COMPILE([ #include <sys/socket.h> + #include <linux/rtnetlink.h> ], + [ int x = IFLA_PORT_MAX; ], + [ with_virtualport=yes ], + [ with_virtualport=no ]) +if test "$with_virtualport" = "yes"; then + val=1 +else + val=0 +fi +AC_DEFINE_UNQUOTED([WITH_VIRTUALPORT], $val, [whether vsi vepa support is enabled]) +AM_CONDITIONAL([WITH_VIRTUALPORT], [test "$with_virtualport" = "yes"]) + dnl netlink library LIBNL_CFLAGS="" LIBNL_LIBS="" -if test "$with_macvtap" = "yes"; then +if test "$with_macvtap" = "yes" || "$with_virtualport" = "yes"; then PKG_CHECK_MODULES([LIBNL], [libnl-1 >= $LIBNL_REQUIRED], [ ], [ AC_MSG_ERROR([libnl >= $LIBNL_REQUIRED is required for macvtap support]) @@ -2084,6 +2097,7 @@ AC_MSG_NOTICE([ Network: $with_network]) AC_MSG_NOTICE([Libvirtd: $with_libvirtd]) AC_MSG_NOTICE([ netcf: $with_netcf]) AC_MSG_NOTICE([ macvtap: $with_macvtap]) +AC_MSG_NOTICE([virtport: $with_virtualport]) AC_MSG_NOTICE([]) AC_MSG_NOTICE([Storage Drivers]) AC_MSG_NOTICE([])

2 1

[libvirt] [PATCH] qemu: distribute more documentation
by Eric Blake 21 May '10

21 May '10

* src/Makefile.am (EXTRA_DIST): Add THREADS.txt. --- I noticed this while working on back-porting a patch to RHEL-6 - the qemu tree in my git repository had more files than were in the unpacked 0.8.1 tarball. src/Makefile.am | 3 ++- 1 file changed, 2 insertions(+), 1 deletions(-) diff --git a/src/Makefile.am b/src/Makefile.am index 889de8e..4c9fdf8 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -588,7 +588,8 @@ augeas_DATA += qemu/libvirtd_qemu.aug augeastest_DATA += qemu/test_libvirtd_qemu.aug endif -EXTRA_DIST += qemu/qemu.conf qemu/libvirtd_qemu.aug qemu/test_libvirtd_qemu.aug +EXTRA_DIST += qemu/qemu.conf qemu/libvirtd_qemu.aug \ + qemu/test_libvirtd_qemu.aug qemu/THREADS.txt if WITH_LXC -- 1.7.0.1

3 6

[libvirt] [PATCH 0/3 V2] Fix race in qemu driver wrt vnc port allocation
by Jim Fehlig 21 May '10

21 May '10

Sorry for the delay ... V2 changes noted in the patches. The qemu driver contains a subtle race in the logic to find next available vnc port. Currently it iterates through all available ports and returns the first for which bind(2) succeeds. However it is possible that a previously issued port has not yet been bound by qemu, resulting in the same port used for a subsequent domain. The issue was briefly discussed on IRC and the consensus there was to track port allocation with a bitmap. The first patch adds some simple bitmap operations to utils. Second patch defines VNC_PORT_{MIN,MAX} and uses them in place of explicit values. Third patch makes use of the bitmap impl to track vnc port allocations. The race was consistently encountered in HA environments [1]. This patch series has been successfully tested in such environment. [1] http://www.linux-ha.org/wiki/VirtualDomain_%28resource_agent%29#VNC_port_au… Jim Fehlig (3): Add simple bitmap operations to utils Add defines for QEMU_VNC_PORT_{MIN,MAX} and use them Fix race in finding available vnc port cfg.mk | 1 + src/Makefile.am | 1 + src/libvirt_private.syms | 8 +++ src/qemu/qemu_conf.h | 3 + src/qemu/qemu_driver.c | 39 +++++++++++- src/util/bitmap.c | 155 ++++++++++++++++++++++++++++++++++++++++++++++ src/util/bitmap.h | 60 ++++++++++++++++++ 7 files changed, 264 insertions(+), 3 deletions(-) create mode 100644 src/util/bitmap.c create mode 100644 src/util/bitmap.h

2 12

[libvirt] [PATCH] daemon: Export SDL audio environment variables
by Cole Robinson 21 May '10

21 May '10

/etc/sysconfig/libvirtd has a few environment variables for configuring libvirt SDL audio. The libvirtd process doesn't see these, however, because they are never exported. Let's export the variables after sourcing the sysconfig script. There is another problem here that the commented out values in the sysconfig script are not neccessarily the actual defaults, we are qemus mercy here. Not sure how to solve that. Signed-off-by: Cole Robinson <crobinso(a)redhat.com> --- daemon/libvirtd.init.in | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/daemon/libvirtd.init.in b/daemon/libvirtd.init.in index 809433e..aa7870c 100644 --- a/daemon/libvirtd.init.in +++ b/daemon/libvirtd.init.in @@ -45,6 +45,9 @@ KRB5_KTNAME=/etc/libvirt/krb5.tab test -f @sysconfdir@/sysconfig/libvirtd && . @sysconfdir@/sysconfig/libvirtd +export QEMU_AUDIO_DRV +export SDL_AUDIODRIVER + LIBVIRTD_CONFIG_ARGS= if [ -n "$LIBVIRTD_CONFIG" ] then -- 1.6.6.1

2 2

[libvirt] [PATCH] storage: Sanitize pool target paths
by Cole Robinson 21 May '10

21 May '10

Spurious / in a pool target path makes life difficult for apps using the GetVolByPath, and doing other path based comparisons with pools. This has caused a few issues for virt-manager users: https://bugzilla.redhat.com/show_bug.cgi?id=494005 https://bugzilla.redhat.com/show_bug.cgi?id=593565 Add a new util API which removes spurious /, virFileSanitizePath. Sanitize target paths when parsing pool XML, and for paths passed to GetVolByPath. Signed-off-by: Cole Robinson <crobinso(a)redhat.com> --- src/conf/storage_conf.c | 8 +++++++- src/libvirt_private.syms | 1 + src/storage/storage_driver.c | 8 +++++++- src/util/util.c | 35 +++++++++++++++++++++++++++++++++++ src/util/util.h | 2 ++ 5 files changed, 52 insertions(+), 2 deletions(-) diff --git a/src/conf/storage_conf.c b/src/conf/storage_conf.c index 9aad081..422e76a 100644 --- a/src/conf/storage_conf.c +++ b/src/conf/storage_conf.c @@ -602,6 +602,7 @@ virStoragePoolDefParseXML(xmlXPathContextPtr ctxt) { xmlNodePtr source_node; char *type = NULL; char *uuid = NULL; + char *tmppath; if (VIR_ALLOC(ret) < 0) { virReportOOMError(); @@ -699,11 +700,16 @@ virStoragePoolDefParseXML(xmlXPathContextPtr ctxt) { } } - if ((ret->target.path = virXPathString("string(./target/path)", ctxt)) == NULL) { + if ((tmppath = virXPathString("string(./target/path)", ctxt)) == NULL) { virStorageReportError(VIR_ERR_XML_ERROR, "%s", _("missing storage pool target path")); goto cleanup; } + ret->target.path = virFileSanitizePath(tmppath); + VIR_FREE(tmppath); + if (!ret->target.path) + goto cleanup; + if (virStorageDefParsePerms(ctxt, &ret->target.perms, "./target/permissions", 0700) < 0) diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index bdeab0f..8e1555c 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -666,6 +666,7 @@ virFileReadLimFD; virFilePid; virFileReadPid; virFileLinkPointsTo; +virFileSanitizePath; virParseNumber; virParseVersionString; virPipeReadUntilEOF; diff --git a/src/storage/storage_driver.c b/src/storage/storage_driver.c index 2c69ba9..1a10221 100644 --- a/src/storage/storage_driver.c +++ b/src/storage/storage_driver.c @@ -1204,6 +1204,11 @@ storageVolumeLookupByPath(virConnectPtr conn, virStorageDriverStatePtr driver = conn->storagePrivateData; unsigned int i; virStorageVolPtr ret = NULL; + char *cleanpath; + + cleanpath = virFileSanitizePath(path); + if (!cleanpath) + return NULL; storageDriverLock(driver); for (i = 0 ; i < driver->pools.count && !ret ; i++) { @@ -1213,7 +1218,7 @@ storageVolumeLookupByPath(virConnectPtr conn, const char *stable_path; stable_path = virStorageBackendStablePath(driver->pools.objs[i], - path); + cleanpath); /* * virStorageBackendStablePath already does * virStorageReportError if it fails; we just need to keep @@ -1242,6 +1247,7 @@ storageVolumeLookupByPath(virConnectPtr conn, "%s", _("no storage vol with matching path")); cleanup: + VIR_FREE(cleanpath); storageDriverUnlock(driver); return ret; } diff --git a/src/util/util.c b/src/util/util.c index e937d39..8f86ed6 100644 --- a/src/util/util.c +++ b/src/util/util.c @@ -1921,6 +1921,41 @@ int virFileAbsPath(const char *path, char **abspath) return 0; } +/* Remove spurious / characters from a path. The result must be freed */ +char * +virFileSanitizePath(const char *path) +{ + const char *cur = path; + char *cleanpath; + int idx = 0; + + cleanpath = strdup(path); + if (!cleanpath) { + virReportOOMError(); + return NULL; + } + + /* Sanitize path in place */ + while (*cur != '\0') { + if (*cur == '/') { + /* Skip all extra / */ + while (*++cur == '/') + continue; + + /* Don't add a trailing / */ + if (*cur == '\0') + break; + + cleanpath[idx++] = '/'; + } + + cleanpath[idx++] = *cur++; + } + cleanpath[idx] = '\0'; + + return cleanpath; +} + /* Like strtol, but produce an "int" result, and check more carefully. Return 0 upon success; return -1 to indicate failure. When END_PTR is NULL, the byte after the final valid digit must be NUL. diff --git a/src/util/util.h b/src/util/util.h index 6bf6bcc..abc2688 100644 --- a/src/util/util.h +++ b/src/util/util.h @@ -118,6 +118,8 @@ char *virFindFileInPath(const char *file); int virFileExists(const char *path); +char *virFileSanitizePath(const char *path); + enum { VIR_FILE_OP_NONE = 0, VIR_FILE_OP_AS_UID = (1 << 0), -- 1.6.6.1

3 6

[libvirt] [PATCH v6] vepa: parsing for 802.1Qb{g|h} XML
by Stefan Berger 21 May '10

21 May '10

Below is David Alan's original patch with lots of changes. In particular, it now parses the following two XML descriptions, one for 802.1Qbg and 802.1Qbh and stored the data internally. The actual triggering of the switch setup protocol has not been implemented here but the relevant code to do that should go into the functions associatePortProfileId() and disassociatePortProfileId(). <interface type='direct'> <source dev='eth0.100' mode='vepa'/> <model type='virtio'/> <virtualport type='802.1Qbg'> <parameters managerid='12' typeid='0x123456' typeidversion='1' instanceid='fa9b7fff-b0a0-4893-8e0e-beef4ff18f8f'/> </virtualport> <filterref filter='clean-traffic'/> </interface> <interface type='direct'> <source dev='eth0.100' mode='vepa'/> <model type='virtio'/> <virtualport type='802.1Qbh'> <parameters profileid='my_profile'/> </virtualport> </interface> I'd suggest to use this patch as a base for triggering the setup protocol with the 802.1Qb{g|h} switch. Changes from V5 to V6: - renaming vsi in the XML to virtualport - replace all occurrences of vsi in the source as well Changes from V4 to V5: - removing mode and MAC address parameters from the functions that will communicate with the hareware diretctly or indirectly Changes from V3 to V4: - moving the associate and disassociate functions to the end of the file for subsequent patches to easier make them generally available for export - passing the macvtap interface name rather than the link device since this otherwise gives funny side effects when using netlink messages where IFLA_IFNAME and IFLA_ADDRESS are specified and the link dev all of a sudden gets the MAC address of the macvtap interface. - Removing rc = -1 error indications in the case of 802.1Qbg|h setup in case we wanted to use hook scripts for the setup and so the setup doesn't fail here. Changes from V2 to V3: - if instance ID UUID is not supplied it will automatically be generated - adapted schema to make instance ID UUID optional - added test case Some of the changes from V1 to V2: - parser and XML generator have been separated into their own functions so they can be re-used elsewhere (passthrough case for example) - Adapted XML parser and generator support the above shown type (802.1Qbg, 802.1Qbh). - Adapted schema to above XML - Adapted test XML to above XML - Passing through the VM's UUID which seems to be necessary for 802.1Qbh -- sorry no host UUID - adding virtual function ID to association function, in case it's necessary to use (for SR-IOV) Signed-off-by: Stefan Berger <stefanb(a)us.ibm.com> >From a945107f047c7cd71f9c1b74fd74c47d8cdc3670 Mon Sep 17 00:00:00 2001 From: David Allan <dallan(a)redhat.com> Date: Fri, 12 Mar 2010 13:25:04 -0500 Subject: [PATCH 1/1] POC of port profile id support * Modified schema per DanPB's feedback * Added test for modified schema --- docs/schemas/domain.rng | 69 ++++++++++++++ src/conf/domain_conf.c | 155 +++++++++++++++++++++++++++++++++ src/conf/domain_conf.h | 35 +++++++ src/qemu/qemu_conf.c | 18 +-- src/qemu/qemu_conf.h | 5 - src/qemu/qemu_driver.c | 17 +-- src/util/macvtap.c | 150 +++++++++++++++++++++++++++---- src/util/macvtap.h | 10 +- tests/domainschemadata/portprofile.xml | 36 +++++++ 9 files changed, 445 insertions(+), 50 deletions(-) create mode 100644 tests/domainschemadata/portprofile.xml Index: libvirt-acl/docs/schemas/domain.rng =================================================================== --- libvirt-acl.orig/docs/schemas/domain.rng +++ libvirt-acl/docs/schemas/domain.rng @@ -817,6 +817,9 @@ </optional> <empty/> </element> + <optional> + <ref name="virtualPortProfile"/> + </optional> <ref name="interface-options"/> </interleave> </group> @@ -902,6 +905,45 @@ </optional> </interleave> </define> + <define name="virtualPortProfile"> + <choice> + <group> + <element name="virtualport"> + <attribute name="type"> + <value>802.1Qbg</value> + </attribute> + <element name="parameters"> + <attribute name="managerid"> + <ref name="uint8range"/> + </attribute> + <attribute name="typeid"> + <ref name="uint24range"/> + </attribute> + <attribute name="typeidversion"> + <ref name="uint8range"/> + </attribute> + <optional> + <attribute name="instanceid"> + <ref name="UUID"/> + </attribute> + </optional> + </element> + </element> + </group> + <group> + <element name="virtualport"> + <attribute name="type"> + <value>802.1Qbh</value> + </attribute> + <element name="parameters"> + <attribute name="profileid"> + <ref name="virtualPortProfileID"/> + </attribute> + </element> + </element> + </group> + </choice> + </define>  @@ -1769,4 +1811,31 @@ <param name="pattern">[a-zA-Z0-9_\.:]+</param> </data> </define> + <define name="uint8range"> + <choice> + <data type="string"> + <param name="pattern">0x[0-9a-fA-F]{1,2}</param> + </data> + <data type="int"> + <param name="minInclusive">0</param> + <param name="maxInclusive">255</param> + </data> + </choice> + </define> + <define name="uint24range"> + <choice> + <data type="string"> + <param name="pattern">0x[0-9a-fA-F]{1,6}</param> + </data> + <data type="int"> + <param name="minInclusive">0</param> + <param name="maxInclusive">16777215</param> + </data> + </choice> + </define> + <define name="virtualPortProfileID"> + <data type="string"> + <param name="maxLength">39</param> + </data> + </define> </grammar> Index: libvirt-acl/src/conf/domain_conf.c =================================================================== --- libvirt-acl.orig/src/conf/domain_conf.c +++ libvirt-acl/src/conf/domain_conf.c @@ -242,6 +242,11 @@ VIR_ENUM_IMPL(virDomainNetdevMacvtap, VI "private", "bridge") +VIR_ENUM_IMPL(virVirtualPort, VIR_VIRTUALPORT_TYPE_LAST, + "none", + "802.1Qbg", + "802.1Qbh") + VIR_ENUM_IMPL(virDomainClockOffset, VIR_DOMAIN_CLOCK_OFFSET_LAST, "utc", "localtime", @@ -1807,6 +1812,145 @@ cleanup: } +static void +virVirtualPortProfileDefParseXML(xmlNodePtr node, + virVirtualPortProfileDefPtr virtPort) +{ + char *virtPortType; + char *virtPortManagerID = NULL; + char *virtPortTypeID = NULL; + char *virtPortTypeIDVersion = NULL; + char *virtPortInstanceID = NULL; + char *virtPortProfileID = NULL; + xmlNodePtr cur = node->children; + + virtPortType = virXMLPropString(node, "type"); + if (!virtPortType) + return; + + while (cur != NULL) { + if (xmlStrEqual(cur->name, BAD_CAST "parameters")) { + + virtPortManagerID = virXMLPropString(cur, "managerid"); + virtPortTypeID = virXMLPropString(cur, "typeid"); + virtPortTypeIDVersion = virXMLPropString(cur, "typeidversion"); + virtPortInstanceID = virXMLPropString(cur, "instanceid"); + virtPortProfileID = virXMLPropString(cur, "profileid"); + + break; + } + + cur = cur->next; + } + + virtPort->virtPortType = VIR_VIRTUALPORT_NONE; + + switch (virVirtualPortTypeFromString(virtPortType)) { + + case VIR_VIRTUALPORT_8021QBG: + if (virtPortManagerID != NULL && virtPortTypeID != NULL && + virtPortTypeIDVersion != NULL) { + unsigned int val; + + if ((virStrToLong_ui(virtPortManagerID, NULL, 10, &val) && + virStrToLong_ui(virtPortManagerID, NULL, 16, &val) ) || + val > 0xff) + break; + + virtPort->u.virtPort8021Qbg.managerID = (uint8_t)val; + + if ((virStrToLong_ui(virtPortTypeID, NULL, 10, &val) && + virStrToLong_ui(virtPortTypeID, NULL, 16, &val) ) || + val > 0xffffff) + break; + + virtPort->u.virtPort8021Qbg.typeID = (uint32_t)val; + + if ((virStrToLong_ui(virtPortTypeIDVersion, NULL, 10, &val) && + virStrToLong_ui(virtPortTypeIDVersion, NULL, 16, &val) ) || + val > 0xff) + break; + + virtPort->u.virtPort8021Qbg.typeIDVersion = (uint8_t)val; + + if (virtPortInstanceID != NULL) { + if (virUUIDParse(virtPortInstanceID, virtPort->u.virtPort8021Qbg.instanceID)) + break; + } else { + if (virUUIDGenerate(virtPort->u.virtPort8021Qbg.instanceID)) + break; + } + + virtPort->virtPortType = VIR_VIRTUALPORT_8021QBG; + } + break; + + case VIR_VIRTUALPORT_8021QBH: + if (virtPortProfileID != NULL) { + if (virStrcpyStatic(virtPort->u.virtPort8021Qbh.profileID, + virtPortProfileID) != NULL) + virtPort->virtPortType = VIR_VIRTUALPORT_8021QBH; + } + break; + + + default: + case VIR_VIRTUALPORT_NONE: + case VIR_VIRTUALPORT_TYPE_LAST: + break; + } + + VIR_FREE(virtPortManagerID); + VIR_FREE(virtPortTypeID); + VIR_FREE(virtPortTypeIDVersion); + VIR_FREE(virtPortInstanceID); + VIR_FREE(virtPortProfileID); + VIR_FREE(virtPortType); +} + + +static void +virVirtualPortProfileFormat(virBufferPtr buf, virVirtualPortProfileDefPtr virtPort, + const char *indent) +{ + char uuidstr[VIR_UUID_STRING_BUFLEN]; + + if (virtPort->virtPortType == VIR_VIRTUALPORT_NONE) + return; + + virBufferVSprintf(buf, "%s<virtualport type='%s'>\n", + indent, virVirtualPortTypeToString(virtPort->virtPortType)); + + switch (virtPort->virtPortType) { + case VIR_VIRTUALPORT_NONE: + case VIR_VIRTUALPORT_TYPE_LAST: + break; + + case VIR_VIRTUALPORT_8021QBG: + virUUIDFormat(virtPort->u.virtPort8021Qbg.instanceID, + uuidstr); + virBufferVSprintf(buf, + "%s <parameters managerid='%d' typeid='%d' " + "typeidversion='%d' instanceid='%s'/>\n", + indent, + virtPort->u.virtPort8021Qbg.managerID, + virtPort->u.virtPort8021Qbg.typeID, + virtPort->u.virtPort8021Qbg.typeIDVersion, + uuidstr); + break; + + case VIR_VIRTUALPORT_8021QBH: + virBufferVSprintf(buf, + "%s <parameters profileid='%s'/>\n", + indent, + virtPort->u.virtPort8021Qbh.profileID); + break; + } + + virBufferVSprintf(buf, "%s</virtualport>\n", indent); +} + + /* Parse the XML definition for a network interface * @param node XML nodeset to parse for net definition * @return 0 on success, -1 on failure @@ -1832,6 +1976,8 @@ virDomainNetDefParseXML(virCapsPtr caps, char *devaddr = NULL; char *mode = NULL; virNWFilterHashTablePtr filterparams = NULL; + virVirtualPortProfileDef virtPort; + bool virtPortParsed = false; if (VIR_ALLOC(def) < 0) { virReportOOMError(); @@ -1873,6 +2019,11 @@ virDomainNetDefParseXML(virCapsPtr caps, xmlStrEqual(cur->name, BAD_CAST "source")) { dev = virXMLPropString(cur, "dev"); mode = virXMLPropString(cur, "mode"); + } else if ((virtPortParsed == false) && + (def->type == VIR_DOMAIN_NET_TYPE_DIRECT) && + xmlStrEqual(cur->name, BAD_CAST "virtualport")) { + virVirtualPortProfileDefParseXML(cur, &virtPort); + virtPortParsed = true; } else if ((network == NULL) && ((def->type == VIR_DOMAIN_NET_TYPE_SERVER) || (def->type == VIR_DOMAIN_NET_TYPE_CLIENT) || @@ -2048,6 +2199,8 @@ virDomainNetDefParseXML(virCapsPtr caps, } else def->data.direct.mode = VIR_DOMAIN_NETDEV_MACVTAP_MODE_VEPA; + def->data.direct.virtPortProfile = virtPort; + def->data.direct.linkdev = dev; dev = NULL; @@ -5140,6 +5293,8 @@ virDomainNetDefFormat(virBufferPtr buf, virBufferVSprintf(buf, " mode='%s'", virDomainNetdevMacvtapTypeToString(def->data.direct.mode)); virBufferAddLit(buf, "/>\n"); + virVirtualPortProfileFormat(buf, &def->data.direct.virtPortProfile, + " "); break; case VIR_DOMAIN_NET_TYPE_USER: Index: libvirt-acl/src/conf/domain_conf.h =================================================================== --- libvirt-acl.orig/src/conf/domain_conf.h +++ libvirt-acl/src/conf/domain_conf.h @@ -259,6 +259,39 @@ enum virDomainNetdevMacvtapType { }; +enum virVirtualPortType { + VIR_VIRTUALPORT_NONE, + VIR_VIRTUALPORT_8021QBG, + VIR_VIRTUALPORT_8021QBH, + + VIR_VIRTUALPORT_TYPE_LAST, +}; + +# ifdef IFLA_VF_PORT_PROFILE_MAX +# define LIBVIRT_IFLA_VF_PORT_PROFILE_MAX IFLA_VF_PORT_PROFILE_MAX +# else +# define LIBVIRT_IFLA_VF_PORT_PROFILE_MAX 40 +# endif + +/* profile data for macvtap (VEPA) */ +typedef struct _virVirtualPortProfileDef virVirtualPortProfileDef; +typedef virVirtualPortProfileDef *virVirtualPortProfileDefPtr; +struct _virVirtualPortProfileDef { + enum virVirtualPortType virtPortType; + union { + struct { + uint8_t managerID; + uint32_t typeID; // 24 bit valid + uint8_t typeIDVersion; + unsigned char instanceID[VIR_UUID_BUFLEN]; + } virtPort8021Qbg; + struct { + char profileID[LIBVIRT_IFLA_VF_PORT_PROFILE_MAX]; + } virtPort8021Qbh; + } u; +}; + + /* Stores the virtual network interface configuration */ typedef struct _virDomainNetDef virDomainNetDef; typedef virDomainNetDef *virDomainNetDefPtr; @@ -290,6 +323,7 @@ struct _virDomainNetDef { struct { char *linkdev; int mode; + virVirtualPortProfileDef virtPortProfile; } direct; } data; char *ifname; @@ -1089,6 +1123,7 @@ VIR_ENUM_DECL(virDomainSeclabel) VIR_ENUM_DECL(virDomainClockOffset) VIR_ENUM_DECL(virDomainNetdevMacvtap) +VIR_ENUM_DECL(virVirtualPort) VIR_ENUM_DECL(virDomainTimerName) VIR_ENUM_DECL(virDomainTimerTrack) Index: libvirt-acl/src/util/macvtap.c =================================================================== --- libvirt-acl.orig/src/util/macvtap.c +++ libvirt-acl/src/util/macvtap.c @@ -43,6 +43,7 @@ # include "util.h" # include "memory.h" +# include "logging.h" # include "macvtap.h" # include "interface.h" # include "conf/domain_conf.h" @@ -57,6 +58,16 @@ # define MACVTAP_NAME_PREFIX "macvtap" # define MACVTAP_NAME_PATTERN "macvtap%d" + +static int associatePortProfileId(const char *macvtap_ifname, + const virVirtualPortProfileDefPtr virtPort, + int vf, + const unsigned char *vmuuid); + +static int disassociatePortProfileId(const char *macvtap_ifname, + const virVirtualPortProfileDefPtr virtPort); + + static int nlOpen(void) { int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE); @@ -567,39 +578,38 @@ configMacvtapTap(int tapfd, int vnet_hdr return 0; } - - /** * openMacvtapTap: * Create an instance of a macvtap device and open its tap character * device. * @tgifname: Interface name that the macvtap is supposed to have. May * be NULL if this function is supposed to choose a name - * @macaddress: The MAC address for the macvtap device - * @linkdev: The interface name of the NIC to connect to the external bridge - * @mode_str: String describing the mode. Valid are 'bridge', 'vepa' and - * 'private'. + * @net: pointer to the virDomainNetDef object describing the direct + * type if an interface * @res_ifname: Pointer to a string pointer where the actual name of the * interface will be stored into if everything succeeded. It is up * to the caller to free the string. + * @vnet_hdr: Whether to enable IFF_VNET_HDR on the interface + * @vmuuid: The (raw) UUID of the VM * * Returns file descriptor of the tap device in case of success, * negative value otherwise with error reported. * + * Open a macvtap device and trigger the switch setup protocol + * if valid port profile parameters were provided. */ int openMacvtapTap(const char *tgifname, - const unsigned char *macaddress, - const char *linkdev, - int mode, + virDomainNetDefPtr net, char **res_ifname, - int vnet_hdr) + int vnet_hdr, + const unsigned char *vmuuid) { const char *type = "macvtap"; int c, rc; char ifname[IFNAMSIZ]; int retries, do_retry = 0; - uint32_t macvtapMode = macvtapModeFromInt(mode); + uint32_t macvtapMode = macvtapModeFromInt(net->data.direct.mode); const char *cr_ifname; int ifindex; @@ -616,7 +626,7 @@ openMacvtapTap(const char *tgifname, return -1; } cr_ifname = tgifname; - rc = link_add(type, macaddress, 6, tgifname, linkdev, + rc = link_add(type, net->mac, 6, tgifname, net->data.direct.linkdev, macvtapMode, &do_retry); if (rc) return -1; @@ -626,7 +636,8 @@ create_name: for (c = 0; c < 8192; c++) { snprintf(ifname, sizeof(ifname), MACVTAP_NAME_PATTERN, c); if (ifaceGetIndex(false, ifname, &ifindex) == ENODEV) { - rc = link_add(type, macaddress, 6, ifname, linkdev, + rc = link_add(type, net->mac, 6, ifname, + net->data.direct.linkdev, macvtapMode, &do_retry); if (rc == 0) break; @@ -639,6 +650,13 @@ create_name: cr_ifname = ifname; } + rc = associatePortProfileId(cr_ifname, + &net->data.direct.virtPortProfile, + -1, + vmuuid); + if (rc != 0) + goto link_del_exit; + rc = ifaceUp(cr_ifname); if (rc != 0) { virReportSystemError(errno, @@ -647,7 +665,7 @@ create_name: "MAC address"), cr_ifname); rc = -1; - goto link_del_exit; + goto disassociate_exit; } rc = openTap(cr_ifname, 10); @@ -656,14 +674,18 @@ create_name: if (configMacvtapTap(rc, vnet_hdr) < 0) { close(rc); rc = -1; - goto link_del_exit; + goto disassociate_exit; } *res_ifname = strdup(cr_ifname); } else - goto link_del_exit; + goto disassociate_exit; return rc; +disassociate_exit: + disassociatePortProfileId(cr_ifname, + &net->data.direct.virtPortProfile); + link_del_exit: link_del(cr_ifname); @@ -673,14 +695,102 @@ link_del_exit: /** * delMacvtap: - * @ifname : The name of the macvtap interface + * @net: pointer to virDomainNetDef object * - * Delete an interface given its name. + * Delete an interface given its name. Disassociate + * it with the switch if port profile parameters + * were provided. */ void -delMacvtap(const char *ifname) +delMacvtap(virDomainNetDefPtr net) { - link_del(ifname); + if (net->ifname) { + disassociatePortProfileId(net->ifname, + &net->data.direct.virtPortProfile); + link_del(net->ifname); + } } #endif + + +/** + * associatePortProfile + * + * @macvtap_ifname: The name of the macvtap device + * @virtPort: pointer to the object holding port profile parameters + * @vf: virtual function number, -1 if to be ignored + * @vmuuid : the UUID of the virtual machine + * + * Associate a port on a swtich with a profile. This function + * may notify a kernel driver or an external daemon to run + * the setup protocol. If profile parameters were not supplied + * by the user, then this function returns without doing + * anything. + * + * Returns 0 in case of success, != 0 otherwise with error + * having been reported. + */ +static int +associatePortProfileId(const char *macvtap_ifname, + const virVirtualPortProfileDefPtr virtPort, + int vf, + const unsigned char *vmuuid) +{ + int rc = 0; + VIR_DEBUG("Associating port profile '%p' on link device '%s'", + virtPort, macvtap_ifname); + (void)vf; + (void)vmuuid; + + switch (virtPort->virtPortType) { + case VIR_VIRTUALPORT_NONE: + case VIR_VIRTUALPORT_TYPE_LAST: + break; + + case VIR_VIRTUALPORT_8021QBG: + + break; + + case VIR_VIRTUALPORT_8021QBH: + + break; + } + + return rc; +} + + +/** + * disassociatePortProfile + * + * @macvtap_ifname: The name of the macvtap device + * @virtPort: point to object holding port profile parameters + * + * Returns 0 in case of success, != 0 otherwise with error + * having been reported. + */ +static int +disassociatePortProfileId(const char *macvtap_ifname, + const virVirtualPortProfileDefPtr virtPort) +{ + int rc = 0; + VIR_DEBUG("Disassociating port profile id '%p' on link device '%s' ", + virtPort, macvtap_ifname); + + switch (virtPort->virtPortType) { + case VIR_VIRTUALPORT_NONE: + case VIR_VIRTUALPORT_TYPE_LAST: + break; + + case VIR_VIRTUALPORT_8021QBG: + + break; + + case VIR_VIRTUALPORT_8021QBH: + + break; + } + + return rc; +} Index: libvirt-acl/src/util/macvtap.h =================================================================== --- libvirt-acl.orig/src/util/macvtap.h +++ libvirt-acl/src/util/macvtap.h @@ -27,15 +27,15 @@ # if defined(WITH_MACVTAP) # include "internal.h" +# include "conf/domain_conf.h" int openMacvtapTap(const char *ifname, - const unsigned char *macaddress, - const char *linkdev, - int mode, + virDomainNetDefPtr net, char **res_ifname, - int vnet_hdr); + int vnet_hdr, + const unsigned char *vmuuid); -void delMacvtap(const char *ifname); +void delMacvtap(virDomainNetDefPtr net); # endif /* WITH_MACVTAP */ Index: libvirt-acl/tests/domainschemadata/portprofile.xml =================================================================== --- /dev/null +++ libvirt-acl/tests/domainschemadata/portprofile.xml @@ -0,0 +1,36 @@ +<domain type='lxc'> + <name>portprofile</name> + <uuid>00000000-0000-0000-0000-000000000000</uuid> + <memory>1048576</memory> + <os> + <type>exe</type> + <init>/sh</init> + </os> + <devices> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + <virtualport type='802.1Qbg'> + <parameters managerid='12' typeid='1193046' typeidversion='1' + instanceid='fa9b7fff-b0a0-4893-8e0e-beef4ff18f8f'/> + </virtualport> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + <virtualport type='802.1Qbg'> + <parameters managerid='12' typeid='1193046' typeidversion='1'/> + </virtualport> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + <virtualport type='802.1Qbh'> + <parameters profileid='my_profile'/> + </virtualport> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + </interface> + </devices> +</domain> Index: libvirt-acl/src/qemu/qemu_conf.h =================================================================== --- libvirt-acl.orig/src/qemu/qemu_conf.h +++ libvirt-acl/src/qemu/qemu_conf.h @@ -271,9 +271,8 @@ qemudOpenVhostNet(virDomainNetDefPtr net int qemudPhysIfaceConnect(virConnectPtr conn, struct qemud_driver *driver, virDomainNetDefPtr net, - char *linkdev, - int brmode, - unsigned long long qemuCmdFlags); + unsigned long long qemuCmdFlags, + const unsigned char *vmuuid); int qemudProbeMachineTypes (const char *binary, virCapsGuestMachinePtr **machines, Index: libvirt-acl/src/qemu/qemu_driver.c =================================================================== --- libvirt-acl.orig/src/qemu/qemu_driver.c +++ libvirt-acl/src/qemu/qemu_driver.c @@ -3678,10 +3678,8 @@ static void qemudShutdownVMDaemon(struct def = vm->def; for (i = 0; i < def->nnets; i++) { virDomainNetDefPtr net = def->nets[i]; - if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) { - if (net->ifname) - delMacvtap(net->ifname); - } + if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) + delMacvtap(net); } #endif @@ -7425,9 +7423,8 @@ static int qemudDomainAttachNetDevice(vi } if ((tapfd = qemudPhysIfaceConnect(conn, driver, net, - net->data.direct.linkdev, - net->data.direct.mode, - qemuCmdFlags)) < 0) + qemuCmdFlags, + vm->def->uuid)) < 0) return -1; } @@ -8470,10 +8467,8 @@ qemudDomainDetachNetDevice(struct qemud_ virNWFilterTearNWFilter(detach); #if WITH_MACVTAP - if (detach->type == VIR_DOMAIN_NET_TYPE_DIRECT) { - if (detach->ifname) - delMacvtap(detach->ifname); - } + if (detach->type == VIR_DOMAIN_NET_TYPE_DIRECT) + delMacvtap(detach); #endif if ((driver->macFilter) && (detach->ifname != NULL)) { Index: libvirt-acl/src/qemu/qemu_conf.c =================================================================== --- libvirt-acl.orig/src/qemu/qemu_conf.c +++ libvirt-acl/src/qemu/qemu_conf.c @@ -1470,9 +1470,8 @@ int qemudPhysIfaceConnect(virConnectPtr conn, struct qemud_driver *driver, virDomainNetDefPtr net, - char *linkdev, - int brmode, - unsigned long long qemuCmdFlags) + unsigned long long qemuCmdFlags, + const unsigned char *vmuuid) { int rc; #if WITH_MACVTAP @@ -1484,8 +1483,7 @@ qemudPhysIfaceConnect(virConnectPtr conn net->model && STREQ(net->model, "virtio")) vnet_hdr = 1; - rc = openMacvtapTap(net->ifname, net->mac, linkdev, brmode, - &res_ifname, vnet_hdr); + rc = openMacvtapTap(net->ifname, net, &res_ifname, vnet_hdr, vmuuid); if (rc >= 0) { VIR_FREE(net->ifname); net->ifname = res_ifname; @@ -1505,17 +1503,16 @@ qemudPhysIfaceConnect(virConnectPtr conn if (err) { close(rc); rc = -1; - delMacvtap(net->ifname); + delMacvtap(net); } } } #else (void)conn; (void)net; - (void)linkdev; - (void)brmode; (void)qemuCmdFlags; (void)driver; + (void)vmuuid; qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("No support for macvtap device")); rc = -1; @@ -4135,9 +4132,8 @@ int qemudBuildCommandLine(virConnectPtr goto no_memory; } else if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) { int tapfd = qemudPhysIfaceConnect(conn, driver, net, - net->data.direct.linkdev, - net->data.direct.mode, - qemuCmdFlags); + qemuCmdFlags, + def->uuid); if (tapfd < 0) goto error;

1 0

[libvirt] [PATCH v5] vepa: parsing for 802.1Qb{g|h} XML
by Stefan Berger 21 May '10

21 May '10

Below is David Alan's original patch with lots of changes. In particular, it now parses the following two XML descriptions, one for 802.1Qbg and 802.1Qbh and stored the data internally. The actual triggering of the switch setup protocol has not been implemented here but the relevant code to do that should go into the functions associatePortProfileId() and disassociatePortProfileId(). <interface type='direct'> <source dev='static' mode='vepa'/> <model type='virtio'/> <vsi type='802.1Qbg'> <parameters managerid='12' typeid='0x123456' typeidversion='1' instanceid='fa9b7fff-b0a0-4893-8e0e-beef4ff18f8f'/> </vsi> <filterref filter='clean-traffic'/> </interface> <interface type='direct'> <source dev='static' mode='vepa'/> <model type='virtio'/> <vsi type='802.1Qbh'> <parameters profileid='my_profile'/> </vsi> </interface> I'd suggest to use this patch as a base for triggering the setup protocol with the 802.1Qb{g|h} switch. Changes from V4 to V5: - removing mode and MAC address parameters from the functions that will communicate with the hareware diretctly or indirectly Changes from V3 to V4: - moving the associate and disassociate functions to the end of the file for subsequent patches to easier make them generally available for export - passing the macvtap interface name rather than the link device since this otherwise gives funny side effects when using netlink messages where IFLA_IFNAME and IFLA_ADDRESS are specified and the link dev all of a sudden gets the MAC address of the macvtap interface. - Removing rc = -1 error indications in the case of 802.1Qbg|h setup in case we wanted to use hook scripts for the setup and so the setup doesn't fail here. Changes from V2 to V3: - if instance ID UUID is not supplied it will automatically be generated - adapted schema to make instance ID UUID optional - added test case Some of the changes from V1 to V2: - parser and XML generator have been separated into their own functions so they can be re-used elsewhere (passthrough case for example) - Adapted XML parser and generator support the above shown type (802.1Qbg, 802.1Qbh). - Adapted schema to above XML - Adapted test XML to above XML - Passing through the VM's UUID which seems to be necessary for 802.1Qbh -- sorry no host UUID - adding virtual function ID to association function, in case it's necessary to use (for SR-IOV) Signed-off-by: Stefan Berger <stefanb(a)us.ibm.com> >From a945107f047c7cd71f9c1b74fd74c47d8cdc3670 Mon Sep 17 00:00:00 2001 From: David Allan <dallan(a)redhat.com> Date: Fri, 12 Mar 2010 13:25:04 -0500 Subject: [PATCH 1/1] POC of port profile id support * Modified schema per DanPB's feedback * Added test for modified schema >From a945107f047c7cd71f9c1b74fd74c47d8cdc3670 Mon Sep 17 00:00:00 2001 From: David Allan <dallan(a)redhat.com> Date: Fri, 12 Mar 2010 13:25:04 -0500 Subject: [PATCH 1/1] POC of port profile id support * Modified schema per DanPB's feedback * Added test for modified schema --- docs/schemas/domain.rng | 69 +++++++++++++ src/conf/domain_conf.c | 155 +++++++++++++++++++++++++++++++ src/conf/domain_conf.h | 35 +++++++ src/qemu/qemu_conf.c | 18 +-- src/qemu/qemu_conf.h | 5 - src/qemu/qemu_driver.c | 17 +-- src/util/macvtap.c | 165 +++++++++++++++++++++++++++++---- src/util/macvtap.h | 10 +- tests/domainschemadata/portprofile.xml | 36 +++++++ 9 files changed, 460 insertions(+), 50 deletions(-) create mode 100644 tests/domainschemadata/portprofile.xml Index: libvirt-acl/docs/schemas/domain.rng =================================================================== --- libvirt-acl.orig/docs/schemas/domain.rng +++ libvirt-acl/docs/schemas/domain.rng @@ -817,6 +817,9 @@ </optional> <empty/> </element> + <optional> + <ref name="vsiProfile"/> + </optional> <ref name="interface-options"/> </interleave> </group> @@ -902,6 +905,45 @@ </optional> </interleave> </define> + <define name="vsiProfile"> + <choice> + <group> + <element name="vsi"> + <attribute name="type"> + <value>802.1Qbg</value> + </attribute> + <element name="parameters"> + <attribute name="managerid"> + <ref name="uint8range"/> + </attribute> + <attribute name="typeid"> + <ref name="uint24range"/> + </attribute> + <attribute name="typeidversion"> + <ref name="uint8range"/> + </attribute> + <optional> + <attribute name="instanceid"> + <ref name="UUID"/> + </attribute> + </optional> + </element> + </element> + </group> + <group> + <element name="vsi"> + <attribute name="type"> + <value>802.1Qbh</value> + </attribute> + <element name="parameters"> + <attribute name="profileid"> + <ref name="vsiProfileID"/> + </attribute> + </element> + </element> + </group> + </choice> + </define>  @@ -1769,4 +1811,31 @@ <param name="pattern">[a-zA-Z0-9_\.:]+</param> </data> </define> + <define name="uint8range"> + <choice> + <data type="string"> + <param name="pattern">0x[0-9a-fA-F]{1,2}</param> + </data> + <data type="int"> + <param name="minInclusive">0</param> + <param name="maxInclusive">255</param> + </data> + </choice> + </define> + <define name="uint24range"> + <choice> + <data type="string"> + <param name="pattern">0x[0-9a-fA-F]{1,6}</param> + </data> + <data type="int"> + <param name="minInclusive">0</param> + <param name="maxInclusive">16777215</param> + </data> + </choice> + </define> + <define name="vsiProfileID"> + <data type="string"> + <param name="maxLength">39</param> + </data> + </define> </grammar> Index: libvirt-acl/src/conf/domain_conf.c =================================================================== --- libvirt-acl.orig/src/conf/domain_conf.c +++ libvirt-acl/src/conf/domain_conf.c @@ -242,6 +242,11 @@ VIR_ENUM_IMPL(virDomainNetdevMacvtap, VI "private", "bridge") +VIR_ENUM_IMPL(virVSI, VIR_VSI_TYPE_LAST, + "none", + "802.1Qbg", + "802.1Qbh") + VIR_ENUM_IMPL(virDomainClockOffset, VIR_DOMAIN_CLOCK_OFFSET_LAST, "utc", "localtime", @@ -1807,6 +1812,145 @@ isValidIfname(const char *ifname) { } +static void +virVSIProfileDefParseXML(xmlNodePtr node, + virVSIProfileDefPtr vsi) +{ + char *vsiType; + char *vsiManagerID = NULL; + char *vsiTypeID = NULL; + char *vsiTypeIDVersion = NULL; + char *vsiInstanceID = NULL; + char *vsiProfileID = NULL; + xmlNodePtr cur = node->children; + + vsiType = virXMLPropString(node, "type"); + if (!vsiType) + return; + + while (cur != NULL) { + if (xmlStrEqual(cur->name, BAD_CAST "parameters")) { + + vsiManagerID = virXMLPropString(cur, "managerid"); + vsiTypeID = virXMLPropString(cur, "typeid"); + vsiTypeIDVersion = virXMLPropString(cur, "typeidversion"); + vsiInstanceID = virXMLPropString(cur, "instanceid"); + vsiProfileID = virXMLPropString(cur, "profileid"); + + break; + } + + cur = cur->next; + } + + vsi->vsiType = VIR_VSI_NONE; + + switch (virVSITypeFromString(vsiType)) { + + case VIR_VSI_8021QBG: + if (vsiManagerID != NULL && vsiTypeID != NULL && + vsiTypeIDVersion != NULL) { + unsigned int val; + + if ((virStrToLong_ui(vsiManagerID, NULL, 10, &val) && + virStrToLong_ui(vsiManagerID, NULL, 16, &val) ) || + val > 0xff) + break; + + vsi->u.vsi8021Qbg.managerID = (uint8_t)val; + + if ((virStrToLong_ui(vsiTypeID, NULL, 10, &val) && + virStrToLong_ui(vsiTypeID, NULL, 16, &val) ) || + val > 0xffffff) + break; + + vsi->u.vsi8021Qbg.typeID = (uint32_t)val; + + if ((virStrToLong_ui(vsiTypeIDVersion, NULL, 10, &val) && + virStrToLong_ui(vsiTypeIDVersion, NULL, 16, &val) ) || + val > 0xff) + break; + + vsi->u.vsi8021Qbg.typeIDVersion = (uint8_t)val; + + if (vsiInstanceID != NULL) { + if (virUUIDParse(vsiInstanceID, vsi->u.vsi8021Qbg.instanceID)) + break; + } else { + if (virUUIDGenerate(vsi->u.vsi8021Qbg.instanceID)) + break; + } + + vsi->vsiType = VIR_VSI_8021QBG; + } + break; + + case VIR_VSI_8021QBH: + if (vsiProfileID != NULL) { + if (virStrcpyStatic(vsi->u.vsi8021Qbh.profileID, + vsiProfileID) != NULL) + vsi->vsiType = VIR_VSI_8021QBH; + } + break; + + + default: + case VIR_VSI_NONE: + case VIR_VSI_TYPE_LAST: + break; + } + + VIR_FREE(vsiManagerID); + VIR_FREE(vsiTypeID); + VIR_FREE(vsiTypeIDVersion); + VIR_FREE(vsiInstanceID); + VIR_FREE(vsiProfileID); + VIR_FREE(vsiType); +} + + +static void +virVSIProfileFormat(virBufferPtr buf, virVSIProfileDefPtr vsi, + const char *indent) +{ + char uuidstr[VIR_UUID_STRING_BUFLEN]; + + if (vsi->vsiType == VIR_VSI_NONE) + return; + + virBufferVSprintf(buf, "%s<vsi type='%s'>\n", + indent, virVSITypeToString(vsi->vsiType)); + + switch (vsi->vsiType) { + case VIR_VSI_NONE: + case VIR_VSI_TYPE_LAST: + break; + + case VIR_VSI_8021QBG: + virUUIDFormat(vsi->u.vsi8021Qbg.instanceID, + uuidstr); + virBufferVSprintf(buf, + "%s <parameters managerid='%d' typeid='%d' " + "typeidversion='%d' instanceid='%s'/>\n", + indent, + vsi->u.vsi8021Qbg.managerID, + vsi->u.vsi8021Qbg.typeID, + vsi->u.vsi8021Qbg.typeIDVersion, + uuidstr); + break; + + case VIR_VSI_8021QBH: + virBufferVSprintf(buf, + "%s <parameters profileid='%s'/>\n", + indent, + vsi->u.vsi8021Qbh.profileID); + break; + } + + virBufferVSprintf(buf, "%s</vsi>\n", indent); +} + + /* Parse the XML definition for a network interface * @param node XML nodeset to parse for net definition * @return 0 on success, -1 on failure @@ -1832,6 +1976,8 @@ virDomainNetDefParseXML(virCapsPtr caps, char *devaddr = NULL; char *mode = NULL; virNWFilterHashTablePtr filterparams = NULL; + virVSIProfileDef vsi; + bool vsiParsed = false; if (VIR_ALLOC(def) < 0) { virReportOOMError(); @@ -1873,6 +2019,11 @@ virDomainNetDefParseXML(virCapsPtr caps, xmlStrEqual(cur->name, BAD_CAST "source")) { dev = virXMLPropString(cur, "dev"); mode = virXMLPropString(cur, "mode"); + } else if ((vsiParsed == false) && + (def->type == VIR_DOMAIN_NET_TYPE_DIRECT) && + xmlStrEqual(cur->name, BAD_CAST "vsi")) { + virVSIProfileDefParseXML(cur, &vsi); + vsiParsed = true; } else if ((network == NULL) && ((def->type == VIR_DOMAIN_NET_TYPE_SERVER) || (def->type == VIR_DOMAIN_NET_TYPE_CLIENT) || @@ -2050,6 +2201,8 @@ virDomainNetDefParseXML(virCapsPtr caps, } else def->data.direct.mode = VIR_DOMAIN_NETDEV_MACVTAP_MODE_VEPA; + def->data.direct.vsiProfile = vsi; + def->data.direct.linkdev = dev; dev = NULL; @@ -5142,6 +5295,8 @@ virDomainNetDefFormat(virBufferPtr buf, virBufferVSprintf(buf, " mode='%s'", virDomainNetdevMacvtapTypeToString(def->data.direct.mode)); virBufferAddLit(buf, "/>\n"); + virVSIProfileFormat(buf, &def->data.direct.vsiProfile, + " "); break; case VIR_DOMAIN_NET_TYPE_USER: Index: libvirt-acl/src/conf/domain_conf.h =================================================================== --- libvirt-acl.orig/src/conf/domain_conf.h +++ libvirt-acl/src/conf/domain_conf.h @@ -259,6 +259,39 @@ enum virDomainNetdevMacvtapType { }; +enum virVSIType { + VIR_VSI_NONE, + VIR_VSI_8021QBG, + VIR_VSI_8021QBH, + + VIR_VSI_TYPE_LAST, +}; + +# ifdef IFLA_VF_PORT_PROFILE_MAX +# define LIBVIRT_IFLA_VF_PORT_PROFILE_MAX IFLA_VF_PORT_PROFILE_MAX +# else +# define LIBVIRT_IFLA_VF_PORT_PROFILE_MAX 40 +# endif + +/* profile data for macvtap (VEPA) */ +typedef struct _virVSIProfileDef virVSIProfileDef; +typedef virVSIProfileDef *virVSIProfileDefPtr; +struct _virVSIProfileDef { + enum virVSIType vsiType; + union { + struct { + uint8_t managerID; + uint32_t typeID; // 24 bit valid + uint8_t typeIDVersion; + unsigned char instanceID[VIR_UUID_BUFLEN]; + } vsi8021Qbg; + struct { + char profileID[LIBVIRT_IFLA_VF_PORT_PROFILE_MAX]; + } vsi8021Qbh; + } u; +}; + + /* Stores the virtual network interface configuration */ typedef struct _virDomainNetDef virDomainNetDef; typedef virDomainNetDef *virDomainNetDefPtr; @@ -290,6 +323,7 @@ struct _virDomainNetDef { struct { char *linkdev; int mode; + virVSIProfileDef vsiProfile; } direct; } data; char *ifname; @@ -1089,6 +1123,7 @@ VIR_ENUM_DECL(virDomainSeclabel) VIR_ENUM_DECL(virDomainClockOffset) VIR_ENUM_DECL(virDomainNetdevMacvtap) +VIR_ENUM_DECL(virVSI) VIR_ENUM_DECL(virDomainTimerName) VIR_ENUM_DECL(virDomainTimerTrack) Index: libvirt-acl/src/util/macvtap.c =================================================================== --- libvirt-acl.orig/src/util/macvtap.c +++ libvirt-acl/src/util/macvtap.c @@ -43,6 +43,7 @@ # include "util.h" # include "memory.h" +# include "logging.h" # include "macvtap.h" # include "interface.h" # include "conf/domain_conf.h" @@ -57,6 +58,16 @@ # define MACVTAP_NAME_PREFIX "macvtap" # define MACVTAP_NAME_PATTERN "macvtap%d" + +static int associatePortProfileId(const char *macvtap_ifname, + const virVSIProfileDefPtr vsi, + int vf, + const unsigned char *vmuuid); + +static int disassociatePortProfileId(const char *macvtap_ifname, + const virVSIProfileDefPtr vsi); + + static int nlOpen(void) { int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE); @@ -567,39 +578,38 @@ configMacvtapTap(int tapfd, int vnet_hdr return 0; } - - /** * openMacvtapTap: * Create an instance of a macvtap device and open its tap character * device. * @tgifname: Interface name that the macvtap is supposed to have. May * be NULL if this function is supposed to choose a name - * @macaddress: The MAC address for the macvtap device - * @linkdev: The interface name of the NIC to connect to the external bridge - * @mode_str: String describing the mode. Valid are 'bridge', 'vepa' and - * 'private'. + * @net: pointer to the virDomainNetDef object describing the direct + * type if an interface * @res_ifname: Pointer to a string pointer where the actual name of the * interface will be stored into if everything succeeded. It is up * to the caller to free the string. + * @vnet_hdr: Whether to enable IFF_VNET_HDR on the interface + * @vmuuid: The (raw) UUID of the VM * * Returns file descriptor of the tap device in case of success, * negative value otherwise with error reported. * + * Open a macvtap device and trigger the switch setup protocol + * if valid port profile parameters were provided. */ int openMacvtapTap(const char *tgifname, - const unsigned char *macaddress, - const char *linkdev, - int mode, + virDomainNetDefPtr net, char **res_ifname, - int vnet_hdr) + int vnet_hdr, + const unsigned char *vmuuid) { const char *type = "macvtap"; int c, rc; char ifname[IFNAMSIZ]; int retries, do_retry = 0; - uint32_t macvtapMode = macvtapModeFromInt(mode); + uint32_t macvtapMode = macvtapModeFromInt(net->data.direct.mode); const char *cr_ifname; int ifindex; @@ -616,7 +626,7 @@ openMacvtapTap(const char *tgifname, return -1; } cr_ifname = tgifname; - rc = link_add(type, macaddress, 6, tgifname, linkdev, + rc = link_add(type, net->mac, 6, tgifname, net->data.direct.linkdev, macvtapMode, &do_retry); if (rc) return -1; @@ -626,7 +636,8 @@ create_name: for (c = 0; c < 8192; c++) { snprintf(ifname, sizeof(ifname), MACVTAP_NAME_PATTERN, c); if (ifaceGetIndex(false, ifname, &ifindex) == ENODEV) { - rc = link_add(type, macaddress, 6, ifname, linkdev, + rc = link_add(type, net->mac, 6, ifname, + net->data.direct.linkdev, macvtapMode, &do_retry); if (rc == 0) break; @@ -639,6 +650,13 @@ create_name: cr_ifname = ifname; } + rc = associatePortProfileId(cr_ifname, + &net->data.direct.vsiProfile, + -1, + vmuuid); + if (rc != 0) + goto link_del_exit; + rc = ifaceUp(cr_ifname); if (rc != 0) { virReportSystemError(errno, @@ -647,7 +665,7 @@ create_name: "MAC address"), cr_ifname); rc = -1; - goto link_del_exit; + goto disassociate_exit; } rc = openTap(cr_ifname, 10); @@ -656,14 +674,18 @@ create_name: if (configMacvtapTap(rc, vnet_hdr) < 0) { close(rc); rc = -1; - goto link_del_exit; + goto disassociate_exit; } *res_ifname = strdup(cr_ifname); } else - goto link_del_exit; + goto disassociate_exit; return rc; +disassociate_exit: + disassociatePortProfileId(cr_ifname, + &net->data.direct.vsiProfile); + link_del_exit: link_del(cr_ifname); @@ -673,14 +695,102 @@ link_del_exit: /** * delMacvtap: - * @ifname : The name of the macvtap interface + * @net: pointer to virDomainNetDef object * - * Delete an interface given its name. + * Delete an interface given its name. Disassociate + * it with the switch if port profile parameters + * were provided. */ void -delMacvtap(const char *ifname) +delMacvtap(virDomainNetDefPtr net) { - link_del(ifname); + if (net->ifname) { + disassociatePortProfileId(net->ifname, + &net->data.direct.vsiProfile); + link_del(net->ifname); + } } #endif + + +/** + * associatePortProfile + * + * @macvtap_ifname: The name of the macvtap device + * @vsi: pointer to the object holding port profile parameters + * @vf: virtual function number, -1 if to be ignored + * @vmuuid : the UUID of the virtual machine + * + * Associate a port on a swtich with a profile. This function + * may notify a kernel driver or an external daemon to run + * the setup protocol. If profile parameters were not supplied + * by the user, then this function returns without doing + * anything. + * + * Returns 0 in case of success, != 0 otherwise with error + * having been reported. + */ +static int +associatePortProfileId(const char *macvtap_ifname, + const virVSIProfileDefPtr vsi, + int vf, + const unsigned char *vmuuid) +{ + int rc = 0; + VIR_DEBUG("Associating port profile '%p' on link device '%s'", + vsi, macvtap_ifname); + (void)vf; + (void)vmuuid; + + switch (vsi->vsiType) { + case VIR_VSI_NONE: + case VIR_VSI_TYPE_LAST: + break; + + case VIR_VSI_8021QBG: + + break; + + case VIR_VSI_8021QBH: + + break; + } + + return rc; +} + + +/** + * disassociatePortProfile + * + * @macvtap_ifname: The name of the macvtap device + * @vsi: point to object holding port profile parameters + * + * Returns 0 in case of success, != 0 otherwise with error + * having been reported. + */ +static int +disassociatePortProfileId(const char *macvtap_ifname, + const virVSIProfileDefPtr vsi) +{ + int rc = 0; + VIR_DEBUG("Disassociating port profile id '%p' on link device '%s' ", + vsi, macvtap_ifname); + + switch (vsi->vsiType) { + case VIR_VSI_NONE: + case VIR_VSI_TYPE_LAST: + break; + + case VIR_VSI_8021QBG: + + break; + + case VIR_VSI_8021QBH: + + break; + } + + return rc; +} Index: libvirt-acl/src/util/macvtap.h =================================================================== --- libvirt-acl.orig/src/util/macvtap.h +++ libvirt-acl/src/util/macvtap.h @@ -27,15 +27,15 @@ # if defined(WITH_MACVTAP) # include "internal.h" +# include "conf/domain_conf.h" int openMacvtapTap(const char *ifname, - const unsigned char *macaddress, - const char *linkdev, - int mode, + virDomainNetDefPtr net, char **res_ifname, - int vnet_hdr); + int vnet_hdr, + const unsigned char *vmuuid); -void delMacvtap(const char *ifname); +void delMacvtap(virDomainNetDefPtr net); # endif /* WITH_MACVTAP */ Index: libvirt-acl/tests/domainschemadata/portprofile.xml =================================================================== --- /dev/null +++ libvirt-acl/tests/domainschemadata/portprofile.xml @@ -0,0 +1,36 @@ +<domain type='lxc'> + <name>portprofile</name> + <uuid>00000000-0000-0000-0000-000000000000</uuid> + <memory>1048576</memory> + <os> + <type>exe</type> + <init>/sh</init> + </os> + <devices> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + <vsi type='802.1Qbg'> + <parameters managerid='12' typeid='1193046' typeidversion='1' + instanceid='fa9b7fff-b0a0-4893-8e0e-beef4ff18f8f'/> + </vsi> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + <vsi type='802.1Qbg'> + <parameters managerid='12' typeid='1193046' typeidversion='1'/> + </vsi> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + <vsi type='802.1Qbh'> + <parameters profileid='my_profile'/> + </vsi> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + </interface> + </devices> +</domain> Index: libvirt-acl/src/qemu/qemu_conf.h =================================================================== --- libvirt-acl.orig/src/qemu/qemu_conf.h +++ libvirt-acl/src/qemu/qemu_conf.h @@ -271,9 +271,8 @@ qemudOpenVhostNet(virDomainNetDefPtr net int qemudPhysIfaceConnect(virConnectPtr conn, struct qemud_driver *driver, virDomainNetDefPtr net, - char *linkdev, - int brmode, - unsigned long long qemuCmdFlags); + unsigned long long qemuCmdFlags, + const unsigned char *vmuuid); int qemudProbeMachineTypes (const char *binary, virCapsGuestMachinePtr **machines, Index: libvirt-acl/src/qemu/qemu_driver.c =================================================================== --- libvirt-acl.orig/src/qemu/qemu_driver.c +++ libvirt-acl/src/qemu/qemu_driver.c @@ -3694,10 +3694,8 @@ static void qemudShutdownVMDaemon(struct def = vm->def; for (i = 0; i < def->nnets; i++) { virDomainNetDefPtr net = def->nets[i]; - if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) { - if (net->ifname) - delMacvtap(net->ifname); - } + if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) + delMacvtap(net); } #endif @@ -7341,9 +7339,8 @@ static int qemudDomainAttachNetDevice(vi } if ((tapfd = qemudPhysIfaceConnect(conn, driver, net, - net->data.direct.linkdev, - net->data.direct.mode, - qemuCmdFlags)) < 0) + qemuCmdFlags, + vm->def->uuid)) < 0) return -1; } @@ -8386,10 +8383,8 @@ qemudDomainDetachNetDevice(struct qemud_ virNWFilterTearNWFilter(detach); #if WITH_MACVTAP - if (detach->type == VIR_DOMAIN_NET_TYPE_DIRECT) { - if (detach->ifname) - delMacvtap(detach->ifname); - } + if (detach->type == VIR_DOMAIN_NET_TYPE_DIRECT) + delMacvtap(detach); #endif if ((driver->macFilter) && (detach->ifname != NULL)) { Index: libvirt-acl/src/qemu/qemu_conf.c =================================================================== --- libvirt-acl.orig/src/qemu/qemu_conf.c +++ libvirt-acl/src/qemu/qemu_conf.c @@ -1465,9 +1465,8 @@ int qemudPhysIfaceConnect(virConnectPtr conn, struct qemud_driver *driver, virDomainNetDefPtr net, - char *linkdev, - int brmode, - unsigned long long qemuCmdFlags) + unsigned long long qemuCmdFlags, + const unsigned char *vmuuid) { int rc; #if WITH_MACVTAP @@ -1479,8 +1478,7 @@ qemudPhysIfaceConnect(virConnectPtr conn net->model && STREQ(net->model, "virtio")) vnet_hdr = 1; - rc = openMacvtapTap(net->ifname, net->mac, linkdev, brmode, - &res_ifname, vnet_hdr); + rc = openMacvtapTap(net->ifname, net, &res_ifname, vnet_hdr, vmuuid); if (rc >= 0) { VIR_FREE(net->ifname); net->ifname = res_ifname; @@ -1500,17 +1498,16 @@ qemudPhysIfaceConnect(virConnectPtr conn if (err) { close(rc); rc = -1; - delMacvtap(net->ifname); + delMacvtap(net); } } } #else (void)conn; (void)net; - (void)linkdev; - (void)brmode; (void)qemuCmdFlags; (void)driver; + (void)vmuuid; qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("No support for macvtap device")); rc = -1; @@ -4130,9 +4127,8 @@ int qemudBuildCommandLine(virConnectPtr goto no_memory; } else if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) { int tapfd = qemudPhysIfaceConnect(conn, driver, net, - net->data.direct.linkdev, - net->data.direct.mode, - qemuCmdFlags); + qemuCmdFlags, + def->uuid); if (tapfd < 0) goto error;

2 3

[libvirt] Update of libvirt website required. not all information about XML tags
by Марк Коренберг 21 May '10

21 May '10

The problem desribed here: https://bugzilla.redhat.com/show_bug.cgi?id=593266 Please update http://www.libvirt.org/formatdomain.html and describe NEW xml tags, like <serial>xxxx</serial> for hard drive and all cpu tags, other if any. -- Segmentation fault

2 5

[libvirt] [PATCH v2] Init script for handling guests on shutdown/boot
by Jiri Denemark 21 May '10

21 May '10

Example output during shutdown: Running guests on default URI: console, rhel6-1, rhel5-64 Running guests on lxc:/// URI: lxc-shell Running guests on xen:/// URI: error: no hypervisor driver available for xen:/// error: failed to connect to the hypervisor Running guests on vbox+tcp://orkuz/system URI: no running guests. Suspending guests on default URI... Suspending console: done Suspending rhel6-1: done Suspending rhel5-64: done Suspending guests on lxc:/// URI... Suspending lxc-shell: error: Failed to save domain 9cba8bfb-56f4-6589-2d12-8a58c886dd3b state error: this function is not supported by the hypervisor: virDomainManagedSave Note, the "Suspending $guest: " shows progress during the suspend phase if domjobinfo gives meaningful output. Example output during boot: Resuming guests on default URI... Resuming guest rhel6-1: done Resuming guest rhel5-64: done Resuming guest console: done Resuming guests on lxc:/// URI... Resuming guest lxc-shell: already active Configuration used for generating the examples above: URIS='default lxc:/// xen:/// vbox+tcp://orkuz/system' The script uses /var/lib/libvirt/libvirt-guests files to note all active guest it should try to resume on next boot. It's content looks like: default 7f8b9d93-30e1-f0b9-47a7-cb408482654b 085b4c95-5da2-e8e1-712f-6ea6a4156af2 fb4d8360-5305-df3a-2da1-07d682891b8c lxc:/// 9cba8bfb-56f4-6589-2d12-8a58c886dd3b --- Version 2 changes: - fixes suggested by Eric - configurable ON_BOOT and ON_SHUTDOWN behavior inspired by Gerd daemon/Makefile.am | 16 ++- daemon/libvirt-guests.init.in | 295 +++++++++++++++++++++++++++++++++++++++++ daemon/libvirt-guests.sysconf | 24 ++++ libvirt.spec.in | 4 + 4 files changed, 335 insertions(+), 4 deletions(-) create mode 100644 daemon/libvirt-guests.init.in create mode 100644 daemon/libvirt-guests.sysconf diff --git a/daemon/Makefile.am b/daemon/Makefile.am index a82e9a9..ed469bf 100644 --- a/daemon/Makefile.am +++ b/daemon/Makefile.am @@ -29,6 +29,8 @@ EXTRA_DIST = \ libvirtd.lxc.logrotate.in \ libvirtd.uml.logrotate.in \ test_libvirtd.aug \ + libvirt-guests.init.in \ + libvirt-guests.sysconf \ $(AVAHI_SOURCES) \ $(DAEMON_SOURCES) @@ -216,21 +218,27 @@ install-logrotate: $(LOGROTATE_CONFS) $(INSTALL_DATA) libvirtd.uml.logrotate $(DESTDIR)$(sysconfdir)/logrotate.d/libvirtd.uml if LIBVIRT_INIT_SCRIPT_RED_HAT -install-init: libvirtd.init +install-init: libvirtd.init libvirt-guests.init mkdir -p $(DESTDIR)$(sysconfdir)/rc.d/init.d $(INSTALL_SCRIPT) libvirtd.init \ $(DESTDIR)$(sysconfdir)/rc.d/init.d/libvirtd + $(INSTALL_SCRIPT) libvirt-guests.init \ + $(DESTDIR)$(sysconfdir)/rc.d/init.d/libvirt-guests mkdir -p $(DESTDIR)$(sysconfdir)/sysconfig $(INSTALL_SCRIPT) $(srcdir)/libvirtd.sysconf \ $(DESTDIR)$(sysconfdir)/sysconfig/libvirtd + $(INSTALL_SCRIPT) $(srcdir)/libvirt-guests.sysconf \ + $(DESTDIR)$(sysconfdir)/sysconfig/libvirt-guests uninstall-init: rm -f $(DESTDIR)$(sysconfdir)/rc.d/init.d/libvirtd \ - $(DESTDIR)$(sysconfdir)/sysconfig/libvirtd + $(DESTDIR)$(sysconfdir)/sysconfig/libvirtd \ + $(DESTDIR)$(sysconfdir)/rc.d/init.d/libvirt-guests \ + $(DESTDIR)$(sysconfdir)/sysconfig/libvirt-guests -BUILT_SOURCES += libvirtd.init +BUILT_SOURCES += libvirtd.init libvirt-guests.init -libvirtd.init: libvirtd.init.in +%.init: %.init.in $(AM_V_GEN)sed \ -e s!\@localstatedir\@!@localstatedir@!g \ -e s!\@sbindir\@!@sbindir@!g \ diff --git a/daemon/libvirt-guests.init.in b/daemon/libvirt-guests.init.in new file mode 100644 index 0000000..826f415 --- /dev/null +++ b/daemon/libvirt-guests.init.in @@ -0,0 +1,295 @@ +#!/bin/sh + +# the following is the LSB init header +# +### BEGIN INIT INFO +# Provides: libvirt-guests +# Required-Start: libvirtd +# Required-Stop: libvirtd +# Default-Start: 3 4 5 +# Short-Description: suspend/resume libvirt guests on shutdown/boot +# Description: This is a script for suspending active libvirt guests +# on shutdown and resuming them on next boot +# See http://libvirt.org +### END INIT INFO + +# the following is chkconfig init header +# +# libvirt-guests: suspend/resume libvirt guests on shutdown/boot +# +# chkconfig: 345 98 02 +# description: This is a script for suspending active libvirt guests +# on shutdown and resuming them on next boot +# See http://libvirt.org +# + +sysconfdir=@sysconfdir@ +localstatedir=@localstatedir@ + +# Source function library. +. "$sysconfdir"/rc.d/init.d/functions + +URIS=default +ON_BOOT=start +ON_SHUTDOWN=suspend +SHUTDOWN_TIMEOUT=0 + +test -f "$sysconfdir"/sysconfig/libvirt-guests && . "$sysconfdir"/sysconfig/libvirt-guests + +LISTFILE="$localstatedir"/lib/libvirt/libvirt-guests + +RETVAL=0 + +retval() { + "$@" + if [ $? -ne 0 ]; then + RETVAL=1 + return 1 + else + return 0 + fi +} + +run_virsh() { + uri=$1 + shift + + if [ "x$uri" = xdefault ]; then + conn= + else + conn="-c $uri" + fi + + virsh $conn "$@" +} + +run_virsh_c() { + ( export LC_ALL=C; run_virsh "$@" ) +} + +list_guests() { + uri=$1 + + list=$(run_virsh_c $uri list) + if [ $? -ne 0 ]; then + RETVAL=1 + return 1 + fi + + uuids= + for id in $(echo "$list" | awk 'NR > 2 {print $1}'); do + uuid=$(run_virsh_c $uri dominfo $id | awk '/^UUID:/{print $2}') + if [ -z "$uuid" ]; then + RETVAL=1 + return 1 + fi + uuids="$uuids $uuid" + done + + echo $uuids +} + +guest_name() { + uri=$1 + uuid=$2 + + name=$(run_virsh_c $uri dominfo $uuid 2>/dev/null | \ + awk '/^Name:/{print $2}') + [ -n "$name" ] || name=$uuid + + echo "$name" +} + +guest_is_on() { + uri=$1 + uuid=$2 + + guest_running=false + info=$(run_virsh_c $uri dominfo $uuid) + if [ $? -ne 0 ]; then + RETVAL=1 + return 1 + fi + + id=$(echo "$info" | awk '/^Id:/{print $2}') + + [ -n "$id" ] && [ "x$id" != x- ] && guest_running=true + return 0 +} + +start() { + [ -f $LISTFILE ] || return 0 + + if [ "x$ON_BOOT" != xstart ]; then + echo $"libvirt-guests is configured not to start any guests on boot" + rm -f $LISTFILE + return 0 + fi + + while read uri list; do + configured=false + for confuri in $URIS; do + if [ $confuri = $uri ]; then + configured=true + break + fi + done + if ! $configured; then + echo $"Ignoring guests on $uri URI" + continue + fi + + echo $"Resuming guests on $uri URI..." + for guest in $list; do + name=$(guest_name $uri $guest) + echo -n $"Resuming guest $name: " + if guest_is_on $uri $guest; then + if $guest_running; then + echo $"already active" + else + retval run_virsh $uri start "$name" >/dev/null && \ + echo $"done" + fi + fi + done + done <$LISTFILE + + rm -f $LISTFILE +} + +suspend_guest() +{ + uri=$1 + guest=$2 + + name=$(guest_name $uri $guest) + label=$"Suspending $name: " + echo -n "$label" + run_virsh $uri managedsave $guest >/dev/null & + virsh_pid=$! + while true; do + sleep 1 + kill -0 $virsh_pid >&/dev/null || break + progress=$(run_virsh_c $uri domjobinfo $guest 2>/dev/null | \ + awk '/^Data processed:/{print $3, $4}') + if [ -n "$progress" ]; then + printf '\r%s%12s ' "$label" "$progress" + else + printf '\r%s%-12s ' "$label" "..." + fi + done + retval wait $virsh_pid && printf '\r%s%-12s\n' "$label" $"done" +} + +shutdown_guest() +{ + uri=$1 + guest=$2 + + name=$(guest_name $uri $guest) + label=$"Shutting down $name: " + echo -n "$label" + retval run_virsh $uri shutdown $guest >/dev/null || return + timeout=$SHUTDOWN_TIMEOUT + while [ $timeout -gt 0 ]; do + sleep 1 + timeout=$[timeout - 1] + guest_is_on $uri $guest || return + $guest_running || break + printf '\r%s%-12d ' "$label" $timeout + done + + if guest_is_on $uri $guest; then + if $guest_running; then + printf '\r%s%-12s\n' "$label" $"failed to shutdown in time" + else + printf '\r%s%-12s\n' "$label" $"done" + fi + fi +} + +stop() { + # last stop was not followed by start + [ -f $LISTFILE ] && return 0 + + suspending=true + if [ "x$ON_SHUTDOWN" = xshutdown ]; then + suspending=false + if [ $SHUTDOWN_TIMEOUT -le 0 ]; then + echo $"Shutdown action requested but SHUTDOWN_TIMEOUT was not set" + RETVAL=6 + return + fi + fi + + : >$LISTFILE + for uri in $URIS; do + echo -n $"Running guests on $uri URI: " + list=$(list_guests $uri) + if [ $? -eq 0 ]; then + empty=true + for uuid in $list; do + $empty || printf ", " + echo -n $(guest_name $uri $uuid) + empty=false + done + if $empty; then + echo $"no running guests." + else + echo + echo $uri $list >>$LISTFILE + fi + fi + done + + while read uri list; do + if $suspending; then + echo $"Suspending guests on $uri URI..." + else + echo $"Shutting down guests on $uri URI..." + fi + + for guest in $list; do + if $suspending; then + suspend_guest $uri $guest + else + shutdown_guest $uri $guest + fi + done + done <$LISTFILE +} + +gueststatus() { + for uri in $URIS; do + echo "* $uri URI:" + retval run_virsh $uri list || echo + done +} + +# See how we were called. +case "$1" in + start|stop|gueststatus) + $1 + ;; + restart) + stop && start + ;; + force-reload) + ;; + status) + if [ -f $LISTFILE ]; then + RETVAL=3 + else + RETVAL=0 + fi + ;; + shutdown) + ON_SHUTDOWN=shutdown + stop + ;; + *) + echo $"Usage: $0 {start|stop|restart|force-reload|gueststatus|shutdown}" + exit 3 + ;; +esac +exit $RETVAL diff --git a/daemon/libvirt-guests.sysconf b/daemon/libvirt-guests.sysconf new file mode 100644 index 0000000..cd58728 --- /dev/null +++ b/daemon/libvirt-guests.sysconf @@ -0,0 +1,24 @@ +# URIs to check for running guests +# example: URIS='default xen:/// vbox+tcp://host/system lxc:///' +#URIS=default + +# action taken on host boot +# - start all guests which were running on shutdown are started on boot +# regardless on their autostart settings +# - ignore libvirt-guests init script won't start any guest on boot, however, +# guests marked as autostart will still be automatically started by +# libvirtd +#ON_BOOT=start + +# action taken on host shutdown +# - suspend all running guests are suspended using virsh managedsave +# - shutdown all running guests are asked to shutdown. Please be careful with +# this settings since there is no way to distinguish between a +# guest which is stuck or ignores shutdown requests and a guest +# which just needs a long time to shutdown. When setting +# ON_SHUTDOWN=shutdown, you must also set SHUTDOWN_TIMEOUT to a +# value suitable for your guests. +#ON_SHUTDOWN=suspend + +# number of seconds we're willing to wait for a guest to shut down +#SHUTDOWN_TIMEOUT=0 diff --git a/libvirt.spec.in b/libvirt.spec.in index 7d5ea85..3d3b871 100644 --- a/libvirt.spec.in +++ b/libvirt.spec.in @@ -830,6 +830,10 @@ fi %{_datadir}/libvirt/cpu_map.xml +%{_sysconfdir}/rc.d/init.d/libvirt-guests +%config(noreplace) %{_sysconfdir}/sysconfig/libvirt-guests +%dir %attr(0700, root, root) %{_localstatedir}/lib/libvirt + %if %{with_sasl} %config(noreplace) %{_sysconfdir}/sasl2/libvirt.conf %endif -- 1.7.1

2 3

[libvirt] [PATCH 0/4] Fix autostart to restore managesaved domains
by Jiri Denemark 21 May '10

21 May '10

Hi, The fix required some refactoring in various places. More details about why and what had to be reworked can be found in each of the patches. Jirka Jiri Denemark (4): Refactor qemudDomainRestore Factor out def assignment to existing domain from virDomainAssignDef Refactor qemudDomainStart Autostart domains using virDomainObjStart src/conf/domain_conf.c | 36 +++-- src/conf/domain_conf.h | 3 + src/libvirt_private.syms | 1 + src/qemu/qemu_driver.c | 370 +++++++++++++++++++++++++++++----------------- 4 files changed, 262 insertions(+), 148 deletions(-)

2 9

[libvirt] [RFC] [PATCH 3/3] vepa+vsi: Some experimental code for 802.1Qbh
by Stefan Berger 21 May '10

21 May '10

This patch may get 802.1Qbh devices working. I am adding some code to poll for the status of an 802.1Qbh device and loop for a while until the status indicates success. This part for sure needs more work and testing... I am recycling link_dump from a previous patch. Signed-off-by: Stefan Berger <stefanb(a)linux.vnet.ibm.com> --- src/util/macvtap.c | 116 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 116 insertions(+) Index: libvirt-acl/src/util/macvtap.c =================================================================== --- libvirt-acl.orig/src/util/macvtap.c +++ libvirt-acl/src/util/macvtap.c @@ -960,6 +960,95 @@ getPortProfileStatus(struct nlmsghdr *nl static int +link_dump(int ifindex, const char *ifname, struct nlattr **tb, + char **recvbuf) +{ + int rc = 0; + char nlmsgbuf[256] = { 0, }; + struct nlmsghdr *nlm = (struct nlmsghdr *)nlmsgbuf, *resp; + struct nlmsgerr *err; + char rtattbuf[64]; + struct rtattr *rta; + struct ifinfomsg i = { + .ifi_family = AF_UNSPEC, + .ifi_index = ifindex + }; + int recvbuflen; + + *recvbuf = NULL; + + nlInit(nlm, NLM_F_REQUEST, RTM_GETLINK); + + if (!nlAppend(nlm, sizeof(nlmsgbuf), &i, sizeof(i))) + goto buffer_too_small; + + if (ifindex < 0 && ifname != NULL) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_IFNAME, + ifname, strlen(ifname) + 1); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (nlComm(nlm, recvbuf, &recvbuflen) < 0) + return -1; + + if (recvbuflen < NLMSG_LENGTH(0) || *recvbuf == NULL) + goto malformed_resp; + + resp = (struct nlmsghdr *)*recvbuf; + + switch (resp->nlmsg_type) { + case NLMSG_ERROR: + err = (struct nlmsgerr *)NLMSG_DATA(resp); + if (resp->nlmsg_len < NLMSG_LENGTH(sizeof(*err))) + goto malformed_resp; + + switch (-err->error) { + case 0: + break; + + default: + virReportSystemError(-err->error, + _("error dumping %d interface"), + ifindex); + rc = -1; + } + break; + + case GENL_ID_CTRL: + case NLMSG_DONE: + if (nlmsg_parse(resp, sizeof(struct ifinfomsg), + tb, IFLA_MAX, ifla_policy)) { + goto malformed_resp; + } + break; + + default: + goto malformed_resp; + } + + if (rc != 0) + VIR_FREE(*recvbuf); + + return rc; + +malformed_resp: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("malformed netlink response message")); + VIR_FREE(*recvbuf); + return -1; + +buffer_too_small: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("internal buffer is too small")); + return -1; +} + + +static int doPortProfileOpSetLink(bool multicast, const char *ifname, int ifindex, const char *profileId, @@ -1151,6 +1240,10 @@ doPortProfileOpCommon(bool multicast, uint8_t op) { int rc; + char *recvbuf = NULL; + struct nlattr *tb[IFLA_MAX + 1]; + int repeats = 5; + uint16_t status; rc = doPortProfileOpSetLink(multicast, ifname, ifindex, @@ -1167,6 +1260,30 @@ doPortProfileOpCommon(bool multicast, return rc; } + if (!multicast) { + /* 802.1Qbh -- query for status */ + while (--repeats) { + rc = link_dump(ifindex, ifname, tb, &recvbuf); + if (rc) + goto err_exit; + rc = getPortProfileStatus((struct nlmsghdr *)recvbuf, &status); + if (rc == 0) { + if (status == 0) + break; + if (status != 0) { + fprintf(stderr,"Current status: %d\n", status); + rc = 1; + } + } + usleep(10000); + + VIR_FREE(recvbuf); + } + } + +err_exit: + VIR_FREE(recvbuf); + return rc; }

2 2

[libvirt] [PATCH] dots should be valid characters in interface names
by Charles Duffy 21 May '10

21 May '10

Howdy! I spent some time scratching my head this evening, as libvirt was stripping the target/@dev entry from my interface[@type='ethernet']. Turns out that this was caused by the interface name containing a period, which is rejected by isValidIfname(). As the kernel allows the creation of such interfaces, it is improper for libvirt to reject them. The attached one-liner (built against RHEL6b1's libvirt but still applicable against current master as of 10c681622) fixes this issue.

5 9

[libvirt] [RFC] [PATCH 2/3] vepa+vsi: add handling of 802.1Qbg using netlink messages
by Stefan Berger 20 May '10

20 May '10

This is so far a more or less experimental patch that adds code for communicating with the external lldpad daemon using the recently added netlink messages. It's communicating using multicast netlink messages in case of 802.1Qbg and unicast using 802.1Qbh. In the multicast case I am currently expecting an immediate response back from the (dummy) server to indicate the status of the port profile setup (IFLA_PORT_RESPONSE). A real server should probably then mimic the kernel driver and wait for a RTM_GETLINK to return the response... After adding netlink code for 802.1Qbg it wasn't difficult to add code for 802.1Qbh anymore, so some code for 802.1Qbh is already here. I am also adding detection code to configure.ac on whether the recently added netlink messages and the defines are available and set the WITH_VSI_VEPA #define if it is. Lots of debugging output is still in this patch. Signed-off-by: Stefan Berger <stefanb(a)linux.vnet.ibm.com> --- configure.ac | 16 + src/util/macvtap.c | 595 ++++++++++++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 604 insertions(+), 7 deletions(-) Index: libvirt-acl/src/util/macvtap.c =================================================================== --- libvirt-acl.orig/src/util/macvtap.c +++ libvirt-acl/src/util/macvtap.c @@ -27,7 +27,7 @@ #include <config.h> -#if WITH_MACVTAP +#if WITH_MACVTAP || WITH_VSI_VEPA # include <stdio.h> # include <errno.h> @@ -41,6 +41,8 @@ # include <linux/rtnetlink.h> # include <linux/if_tun.h> +# include <netlink/msg.h> + # include "util.h" # include "memory.h" # include "logging.h" @@ -58,6 +60,10 @@ # define MACVTAP_NAME_PREFIX "macvtap" # define MACVTAP_NAME_PATTERN "macvtap%d" +# define MICROSEC_PER_SEC (1000 * 1000) + + +# define USE_IFLA_PORT_SELF static int associatePortProfileId(const char *macvtap_ifname, const virVSIProfileDefPtr vsi, @@ -67,6 +73,11 @@ static int associatePortProfileId(const static int disassociatePortProfileId(const char *macvtap_ifname, const virVSIProfileDefPtr vsi); +enum virVSIOp { + ASSOCIATE = 0x1, + DISASSOCIATE = 0x2, +}; + static int nlOpen(void) { @@ -159,6 +170,156 @@ err_exit: } +/** + * nlCommWaitSuccess: + * + * @nlmsg: pointer to netlink message + * @nl_grousp: the netlink multicast groups to send to + * @respbuf: pointer to pointer where response buffer will be allocated + * @respbuflen: pointer to integer holding the size of the response buffer + * on return of the function. + * @to_usecs: timeout in microseconds to wait for a success message + * to be returned + * + * Send the given message to the netlink multicast group and receive + * responses. Skip responses indicating an error and keep on receiving + * responses until a success response is returned. + * Returns 0 on success, -1 on error. In case of error, no response + * buffer will be returned. + */ +static int +nlCommWaitSuccess(struct nlmsghdr *nlmsg, int nl_groups, + char **respbuf, int *respbuflen, long to_usecs) +{ + int rc = 0; + struct sockaddr_nl nladdr = { + .nl_family = AF_NETLINK, + .nl_pid = 0, + .nl_groups = nl_groups, + }; + int rcvChunkSize = 1024; // expecting less than that + int rcvoffset = 0; + ssize_t nbytes; + int n; + struct timeval tv = { + .tv_sec = to_usecs / MICROSEC_PER_SEC, + .tv_usec = to_usecs % MICROSEC_PER_SEC, + }; + fd_set rfds; + bool gotvalid = false; + int fd = nlOpen(); + static uint32_t seq = 0x1234; + uint32_t myseq = seq++; + uint32_t mypid = getpid(); + + if (fd < 0) + return -1; + + nlmsg->nlmsg_pid = mypid; + nlmsg->nlmsg_seq = myseq; + nlmsg->nlmsg_flags |= NLM_F_ACK; + + nbytes = sendto(fd, (void *)nlmsg, nlmsg->nlmsg_len, 0, + (struct sockaddr *)&nladdr, sizeof(nladdr)); + if (nbytes < 0) { + virReportSystemError(errno, + "%s", _("cannot send to netlink socket")); + rc = -1; + goto err_exit; + } + fprintf(stderr,"sent %d bytes\n", (int)nbytes); + + while (!gotvalid) { + rcvoffset = 0; + while (1) { + socklen_t addrlen = sizeof(nladdr); + + if (VIR_REALLOC_N(*respbuf, rcvoffset+rcvChunkSize) < 0) { + virReportOOMError(); + rc = -1; + goto err_exit; + } + + FD_ZERO(&rfds); + FD_SET(fd, &rfds); + + n = select(fd + 1, &rfds, NULL, NULL, &tv); + if (n == 0) { + fprintf(stderr,"Select timed out.\n"); + rc = -1; + goto err_exit; + } + + nbytes = recvfrom(fd, &((*respbuf)[rcvoffset]), rcvChunkSize, 0, + (struct sockaddr *)&nladdr, &addrlen); + fprintf(stderr,"got something... %d bytes\n",(int)nbytes); + if (nbytes < 0) { + if (errno == EAGAIN || errno == EINTR) + continue; + virReportSystemError(errno, "%s", + _("error receiving from netlink socket")); + rc = -1; + goto err_exit; + } + rcvoffset += nbytes; + break; + } + *respbuflen = rcvoffset; + + /* check message for error */ + if (*respbuflen > NLMSG_LENGTH(0) && *respbuf != NULL) { + struct nlmsghdr *resp = (struct nlmsghdr *)*respbuf; + struct nlmsgerr *err; + + fprintf(stderr,"resp->nlmsg_type=%d\n", resp->nlmsg_type); + fprintf(stderr,"resp->nlmsg_flags=0x%x\n", resp->nlmsg_flags); + fprintf(stderr,"resp->nlmsg_seq=%d (%d)\n", resp->nlmsg_seq, myseq); + fprintf(stderr,"resp->nlmsg_pid=%d (%d)\n", resp->nlmsg_pid, mypid); + + if (resp->nlmsg_pid != mypid || + resp->nlmsg_seq != myseq) + continue; + + switch (resp->nlmsg_type) { + default: + case NLMSG_ERROR: + err = (struct nlmsgerr *)NLMSG_DATA(resp); + if (resp->nlmsg_len >= NLMSG_LENGTH(sizeof(*err))) { + fprintf(stderr,"error %d\n", -err->error); + if (-err->error != EOPNOTSUPP) { + /* assuming error msg from daemon */ + fprintf(stderr,"Got error %d, but assuming its response from lldpad: len = %d\n", + -err->error, + *respbuflen); + gotvalid = true; + break; + } + } + /* whatever this is, skip it */ + VIR_FREE(*respbuf); + *respbuf = NULL; + *respbuflen = 0; + fprintf(stderr,"Skipping error resp. msg.\n"); + break; + case NLMSG_DONE: + gotvalid = true; + break; + } + } + } + +err_exit: + if (rc == -1) { + VIR_FREE(*respbuf); + *respbuf = NULL; + *respbuflen = 0; + } + + nlClose(fd); + return rc; +} + + static struct rtattr * rtattrCreate(char *buffer, int bufsize, int type, const void *data, int datalen) @@ -204,6 +365,8 @@ nlAppend(struct nlmsghdr *nlm, int totle } +# if WITH_MACVTAP + static int link_add(const char *type, const unsigned char *macaddress, int macaddrsize, @@ -652,7 +815,7 @@ create_name: rc = associatePortProfileId(cr_ifname, &net->data.direct.vsiProfile, - -1, + PORT_SELF_VF, vmuuid); if (rc != 0) goto link_del_exit; @@ -711,8 +874,422 @@ delMacvtap(virDomainNetDefPtr net) } } -#endif +# endif + + +# ifdef IFLA_PORT_MAX + +static struct nla_policy ifla_policy[IFLA_MAX + 1] = +{ + [IFLA_VF_PORTS] = { .type = NLA_NESTED }, +}; + +static struct nla_policy ifla_vf_ports_policy[IFLA_VF_PORT_MAX + 1] = +{ + [IFLA_VF_PORT] = { .type = NLA_NESTED }, +}; + +static struct nla_policy ifla_port_policy[IFLA_PORT_MAX + 1] = +{ + [IFLA_PORT_RESPONSE] = { .type = NLA_U16 }, +}; + + +static int +getPortProfileStatus(struct nlmsghdr *nlm, uint16_t *status) +{ + int rc = 1; + const char *msg = NULL; + struct nlattr *tb[IFLA_MAX+1], + *tb2[IFLA_VF_PORT_MAX + 1], + *tb3[IFLA_PORT_MAX+1]; + + if (nlmsg_parse(nlm, sizeof(struct ifinfomsg), + (struct nlattr **)&tb, IFLA_MAX, ifla_policy)) { + msg = _("error parsing netlink response.\n"); + goto err_exit; + } + +# ifndef USE_IFLA_PORT_SELF + if (tb[IFLA_VF_PORTS]) { + if (nla_parse_nested(tb2, IFLA_VF_PORT_MAX, tb[IFLA_VF_PORTS], + ifla_vf_ports_policy)) { + msg = _("error parsing nested IFLA_VF_PORTS part"); + goto err_exit; + } + if (tb2[IFLA_VF_PORT]) { + if (nla_parse_nested(tb3, IFLA_PORT_MAX, tb2[IFLA_VF_PORT], + ifla_port_policy)) { + msg = _("error parsing nested IFLA_VF_PORT part"); + goto err_exit; + } +# else + (void)tb2; + (void)ifla_vf_ports_policy; + if (tb[IFLA_PORT_SELF]) { + if (1) { + if (nla_parse_nested(tb3, IFLA_PORT_MAX, tb[IFLA_PORT_SELF], + ifla_port_policy)) { + msg = _("error parsing nested IFLA_VF_PORT part"); + goto err_exit; + } +# endif + + if (tb3[IFLA_PORT_RESPONSE]) { + *status = *(uint16_t *)RTA_DATA(tb3[IFLA_PORT_RESPONSE]); + rc = 0; + } else { + msg = _("no IFLA_PORT_RESPONSE found in netlink message"); + goto err_exit; + } + } else { + msg = _("no IFLA_VF_PORT found in netlink message"); + goto err_exit; + } + } else { + msg = _("no IFLA_VF_PORTS found in netlink message"); + goto err_exit; + } + + err_exit: + if (msg) + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", msg); + + return rc; +} + + +static int +doPortProfileOpSetLink(bool multicast, + const char *ifname, int ifindex, + const char *profileId, + struct ifla_port_vsi *portVsi, + const unsigned char *instanceId, + const unsigned char *hostUUID, + int32_t vf, + uint8_t op) +{ + int rc = 0; + char nlmsgbuf[256]; + struct nlmsghdr *nlm = (struct nlmsghdr *)nlmsgbuf, *resp; + struct nlmsgerr *err; + char rtattbuf[64]; + struct rtattr *rta, *vfports, *vfport; + struct ifinfomsg ifinfo = { + .ifi_family = AF_UNSPEC, + .ifi_index = ifindex, + }; + char *recvbuf = NULL; + int recvbuflen = 0; + uint16_t status; + + memset(&nlmsgbuf, 0, sizeof(nlmsgbuf)); + + nlInit(nlm, NLM_F_REQUEST, RTM_SETLINK); + + if (!nlAppend(nlm, sizeof(nlmsgbuf), &ifinfo, sizeof(ifinfo))) + goto buffer_too_small; + +# ifndef USE_IFLA_PORT_SELF + + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_VF_PORTS, NULL, 0); + if (!rta) + goto buffer_too_small; + + if (!(vfports = nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len))) + goto buffer_too_small; + + /* beging nesting vfports */ + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_VF_PORT, NULL, 0); +# else + (void)vfports; + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_SELF, NULL, 0); +# endif + if (!rta) + goto buffer_too_small; + + if (!(vfport = nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len))) + goto buffer_too_small; + + /* begin nesting of vfport */ + if (profileId) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_PROFILE, + profileId, strlen(profileId) + 1); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (portVsi) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_VSI_TYPE, + portVsi, sizeof(*portVsi)); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (instanceId) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_INSTANCE_UUID, + instanceId, VIR_UUID_BUFLEN); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + if (hostUUID) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_HOST_UUID, + hostUUID, VIR_UUID_BUFLEN); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + if (vf >= 0) { + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_VF, + &vf, sizeof(vf)); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + } + + rta = rtattrCreate(rtattbuf, sizeof(rtattbuf), IFLA_PORT_REQUEST, + &op, sizeof(op)); + if (!rta) + goto buffer_too_small; + + if (!nlAppend(nlm, sizeof(nlmsgbuf), rtattbuf, rta->rta_len)) + goto buffer_too_small; + + /* end nesting of vport */ + vfport->rta_len = (char *)nlm + nlm->nlmsg_len - (char *)vfport; + +# ifndef USE_IFLA_PORT_SELF + /* end nesting of vfports */ + vfports->rta_len = (char *)nlm + nlm->nlmsg_len - (char *)vfports; +# endif + + if (!multicast) { + if (nlComm(nlm, &recvbuf, &recvbuflen) < 0) + return -1; + } else { + if (nlCommWaitSuccess(nlm, RTMGRP_LINK, &recvbuf, &recvbuflen, + 5 * MICROSEC_PER_SEC) < 0) + return -1; + } + + if (recvbuflen < NLMSG_LENGTH(0) || recvbuf == NULL) + goto malformed_resp; + + resp = (struct nlmsghdr *)recvbuf; + + switch (resp->nlmsg_type) { + case NLMSG_ERROR: + err = (struct nlmsgerr *)NLMSG_DATA(resp); + if (resp->nlmsg_len < NLMSG_LENGTH(sizeof(*err))) + goto malformed_resp; + + switch (-err->error) { + case 0: + break; + + default: + virReportSystemError(-err->error, + _("error during VSI configuration of %s interface"), ifname); + rc = -1; + } + break; + + case NLMSG_DONE: + rc = getPortProfileStatus(resp, &status); + if (rc == 0 && status != PORT_VDP_RESPONSE_SUCCESS) { + macvtapError(VIR_ERR_INTERNAL_ERROR, + _("Response code from port profile setup: %d"), + status); + rc = -1; + } + break; + + default: + goto malformed_resp; + } + + VIR_FREE(recvbuf); + + return rc; + +malformed_resp: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("malformed netlink response message")); + VIR_FREE(recvbuf); + return -1; + +buffer_too_small: + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("internal buffer is too small")); + return -1; +} + + +static int +doPortProfileOpCommon(bool multicast, + const char *ifname, int ifindex, + const char *profileId, + struct ifla_port_vsi *portVsi, + const unsigned char *instanceId, + const unsigned char *hostUUID, + int32_t vf, + uint8_t op) +{ + int rc; + + rc = doPortProfileOpSetLink(multicast, + ifname, ifindex, + profileId, + portVsi, + instanceId, + hostUUID, + vf, + op); + + if (rc != 0) { + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Sending of PortProfileRequest failed.\n")); + return rc; + } + + return rc; +} + +# endif /* IFLA_PORT_MAX */ + +static int +doPortProfileOp8021Qbg(const char *ifname, + const virVSIProfileDefPtr vsi, + int32_t vf, + enum virVSIOp vsiOp) +{ + int rc; + +# ifndef IFLA_VF_PORT_MAX + + (void)ifname; + (void)vsi; + (void)vf; + (void)vsiOp; + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Kernel VF Port support was missing at compile time.")); + rc = 1; + +# else /* IFLA_VF_PORT_MAX */ + + int op = PORT_REQUEST_ASSOCIATE; + struct ifla_port_vsi portVsi = { + .vsi_mgr_id = vsi->u.vsi8021Qbg.managerID, + .vsi_type_version = vsi->u.vsi8021Qbg.typeIDVersion, + }; + bool multicast = true; + int ifindex; + + if (ifaceGetIndex(true, ifname, &ifindex) != 0) { + rc = 1; + goto err_exit; + } + + portVsi.vsi_type_id[2] = vsi->u.vsi8021Qbg.typeID >> 16; + portVsi.vsi_type_id[1] = vsi->u.vsi8021Qbg.typeID >> 8; + portVsi.vsi_type_id[0] = vsi->u.vsi8021Qbg.typeID; + + switch (vsiOp) { + case ASSOCIATE: + op = PORT_REQUEST_ASSOCIATE; + break; + case DISASSOCIATE: + op = PORT_REQUEST_DISASSOCIATE; + break; + default: + macvtapError(VIR_ERR_INTERNAL_ERROR, + _("operation type %d not supported"), op); + rc = 1; + goto err_exit; + } + + rc = doPortProfileOpCommon(multicast, NULL, ifindex, + NULL, + &portVsi, + vsi->u.vsi8021Qbg.instanceID, + NULL, + vf, + op); + +err_exit: + +# endif /* IFLA_VF_PORT_MAX */ + + return rc; +} + + +static int +doPortProfileOp8021Qbh(const virVSIProfileDefPtr vsi, + const unsigned char *host_uuid, + const unsigned char *vm_uuid, + enum virVSIOp vsiOp) +{ + int rc; + +# ifndef IFLA_VF_PORT_MAX + + (void)vsi; + (void)host_uuid; + (void)vm_uuid; + (void)vsiOp; + macvtapError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Kernel VF Port support was missing at compile time.")); + rc = 1; + +# else /* IFLA_VF_PORT_MAX */ + + int op = PORT_REQUEST_ASSOCIATE; + bool multicast = false; + + switch (vsiOp) { + case ASSOCIATE: + op = PORT_REQUEST_ASSOCIATE; + break; + case DISASSOCIATE: + op = PORT_REQUEST_DISASSOCIATE; + break; + default: + macvtapError(VIR_ERR_INTERNAL_ERROR, + _("operation type %d not supported"), op); + rc = 1; + goto err_exit; + } + + rc = doPortProfileOpCommon(multicast, NULL, -1, + vsi->u.vsi8021Qbh.profileID, + NULL, + host_uuid, + vm_uuid, + -1, + op); + +err_exit: + +# endif /* IFLA_VF_PORT_MAX */ + + return rc; +} /** * associatePortProfile @@ -749,11 +1326,13 @@ associatePortProfileId(const char *macvt break; case VIR_VSI_8021QBG: - + rc = doPortProfileOp8021Qbg(macvtap_ifname, vsi, vf, + ASSOCIATE); break; case VIR_VSI_8021QBH: - + rc = doPortProfileOp8021Qbh(vsi, vmuuid /* host_uuid */, vmuuid, + ASSOCIATE); break; } @@ -784,13 +1363,17 @@ disassociatePortProfileId(const char *ma break; case VIR_VSI_8021QBG: - + rc = doPortProfileOp8021Qbg(macvtap_ifname, vsi, -1, + DISASSOCIATE); break; case VIR_VSI_8021QBH: - + rc = doPortProfileOp8021Qbh(vsi, NULL, NULL, + DISASSOCIATE); break; } return rc; } + +#endif Index: libvirt-acl/configure.ac =================================================================== --- libvirt-acl.orig/configure.ac +++ libvirt-acl/configure.ac @@ -2005,13 +2005,26 @@ if test "$with_macvtap" != "no" ; then fi AM_CONDITIONAL([WITH_MACVTAP], [test "$with_macvtap" = "yes"]) +AC_TRY_COMPILE([ #include <sys/socket.h> + #include <linux/rtnetlink.h> ], + [ int x = IFLA_PORT_MAX; ], + [ with_vsi_vepa=yes ], + [ with_vsi_vepa=no ]) +if test "$with_vsi_vepa" = "yes"; then + val=1 +else + val=0 +fi +AC_DEFINE_UNQUOTED([WITH_VSI_VEPA], $val, [whether vsi vepa support is enabled]) +AM_CONDITIONAL([WITH_VSI_VEPA], [test "$with_vsi_vepa" = "yes"]) + dnl netlink library LIBNL_CFLAGS="" LIBNL_LIBS="" -if test "$with_macvtap" = "yes"; then +if test "$with_macvtap" = "yes" || "$with_vsi_vepa" = "yes"; then PKG_CHECK_MODULES([LIBNL], [libnl-1 >= $LIBNL_REQUIRED], [ ], [ AC_MSG_ERROR([libnl >= $LIBNL_REQUIRED is required for macvtap support]) @@ -2084,6 +2097,7 @@ AC_MSG_NOTICE([ Network: $with_network]) AC_MSG_NOTICE([Libvirtd: $with_libvirtd]) AC_MSG_NOTICE([ netcf: $with_netcf]) AC_MSG_NOTICE([ macvtap: $with_macvtap]) +AC_MSG_NOTICE([vsi-vepa: $with_vsi_vepa]) AC_MSG_NOTICE([]) AC_MSG_NOTICE([Storage Drivers]) AC_MSG_NOTICE([])

1 0

[libvirt] [RFC] [PATCH 1/3] vepa+vsi: Introduce dependency on libnl
by Stefan Berger 20 May '10

20 May '10

This patch introduces a dependency on libnl, which subsequent patches will then use. Signed-off-by: Stefan Berger <stefanb(a)us.ibm.com> Index: libvirt-acl/configure.ac =================================================================== --- libvirt-acl.orig/configure.ac +++ libvirt-acl/configure.ac @@ -42,6 +42,7 @@ HAL_REQUIRED=0.5.0 DEVMAPPER_REQUIRED=1.0.0 LIBCURL_REQUIRED="7.18.0" LIBPCAP_REQUIRED="1.0.0" +LIBNL_REQUIRED="1.1" dnl Checks for C compiler. AC_PROG_CC @@ -2005,6 +2006,24 @@ fi AM_CONDITIONAL([WITH_MACVTAP], [test "$with_macvtap" = "yes"]) +dnl netlink library + +LIBNL_CFLAGS="" +LIBNL_LIBS="" + +if test "$with_macvtap" = "yes"; then + PKG_CHECK_MODULES([LIBNL], [libnl-1 >= $LIBNL_REQUIRED], [ + ], [ + AC_MSG_ERROR([libnl >= $LIBNL_REQUIRED is required for macvtap support]) + ]) +fi + +AC_SUBST([LIBNL_CFLAGS]) +AC_SUBST([LIBNL_LIBS]) + + + + # Only COPYING.LIB is under version control, yet COPYING # is included as part of the distribution tarball. # Copy one to the other, but only if this is a srcdir-build. @@ -2183,6 +2202,11 @@ AC_MSG_NOTICE([ pcap: $LIBPCAP_CFLAGS else AC_MSG_NOTICE([ pcap: no]) fi +if test "$with_macvtap" = "yes" ; then +AC_MSG_NOTICE([ nl: $LIBNL_CFLAGS $LIBNL_LIBS]) +else +AC_MSG_NOTICE([ nl: no]) +fi AC_MSG_NOTICE([]) AC_MSG_NOTICE([Test suite]) AC_MSG_NOTICE([]) Index: libvirt-acl/libvirt.spec.in =================================================================== --- libvirt-acl.orig/libvirt.spec.in +++ libvirt-acl/libvirt.spec.in @@ -63,6 +63,7 @@ %define with_yajl 0%{!?_without_yajl:0} %define with_nwfilter 0%{!?_without_nwfilter:0} %define with_libpcap 0%{!?_without_libpcap:0} +%define with_macvtap 0%{!?_without_macvtap:0} # Non-server/HV driver defaults which are always enabled %define with_python 0%{!?_without_python:1} @@ -153,6 +154,11 @@ %if %{with_qemu} %define with_nwfilter 0%{!?_without_nwfilter:%{server_drivers}} %define with_libpcap 0%{!?_without_libpcap:%{server_drivers}} +%define with_macvtap 0%{!?_without_macvtap:%{server_drivers}} +%endif + +%if %{with_macvtap} +%define with_libnl 1 %endif # Force QEMU to run as non-root @@ -282,6 +288,9 @@ BuildRequires: yajl-devel %if %{with_libpcap} BuildRequires: libpcap-devel %endif +%if %{with_libnl} +BuildRequires: libnl-devel +%endif %if %{with_avahi} BuildRequires: avahi-devel %endif @@ -531,6 +540,10 @@ of recent versions of Linux (and other O %define _without_libpcap --without-libpcap %endif +%if ! %{with_macvtap} +%define _without_macvtap --without-macvtap +%endif + %configure %{?_without_xen} \ %{?_without_qemu} \ %{?_without_openvz} \ @@ -560,6 +573,7 @@ of recent versions of Linux (and other O %{?_without_udev} \ %{?_without_yajl} \ %{?_without_libpcap} \ + %{?_without_macvtap} \ --with-qemu-user=%{qemu_user} \ --with-qemu-group=%{qemu_group} \ --with-init-script=redhat \ Index: libvirt-acl/src/Makefile.am =================================================================== --- libvirt-acl.orig/src/Makefile.am +++ libvirt-acl/src/Makefile.am @@ -997,7 +997,7 @@ libvirt_la_LDFLAGS = $(VERSION_SCRIPT_FL $(CYGWIN_EXTRA_LDFLAGS) $(MINGW_EXTRA_LDFLAGS) libvirt_la_BUILT_LIBADD += ../gnulib/lib/libgnu.la libvirt_la_LIBADD += $(LIBXML_LIBS) \ - $(LIBPCAP_LIBS) \ + $(LIBPCAP_LIBS) $(LIBNL_LIBS) \ $(DRIVER_MODULE_LIBS) \ $(CYGWIN_EXTRA_LIBADD) libvirt_la_CFLAGS = $(COVERAGE_CFLAGS) -DIN_LIBVIRT @@ -1056,7 +1056,7 @@ libvirt_lxc_SOURCES = \ libvirt_lxc_LDFLAGS = $(WARN_CFLAGS) $(COVERAGE_LDFLAGS) libvirt_lxc_LDADD = $(CAPNG_LIBS) $(YAJL_LIBS) \ $(LIBXML_LIBS) $(NUMACTL_LIBS) $(LIB_PTHREAD) \ - ../gnulib/lib/libgnu.la + $(LIBNL_LIBS) ../gnulib/lib/libgnu.la libvirt_lxc_CFLAGS = \ $(LIBPARTED_CFLAGS) \ $(NUMACTL_CFLAGS) \

1 0

[libvirt] VIR_ERROR and VIR_DEBUG normalization
by Jim Meyering 20 May '10

20 May '10

Most of the following changes have been induced automatically. The few outliers done manually are marked as such. [PATCH 01/10] maint: use VIR_ERROR0 rather than VIR_ERROR with a bare "%s" [PATCH 02/10] maint: mark translatable string args of VIR_ERROR0 [PATCH 03/10] maint: mark translatable string args of VIR_ERROR [PATCH 04/10] maint: VIR_ERROR/VIR_ERROR0: mark up the remaining ones manually [PATCH 05/10] maint: more of same, but manual: convert VIR_ERROR("%s" to VIR_ERROR0( [PATCH 06/10] maint: change "" in err ? err->message : "" to _("unknown error"), ... [PATCH 07/10] maint: enforce policy wrt VIR_ERROR and VIR_ERROR0 [PATCH 08/10] maint: don't mark VIR_DEBUG or VIR_DEBUG0 diagnostics for translation [PATCH 09/10] maint: enforce policy wrt VIR_DEBUG and VIR_DEBUG0 [PATCH 10/10] maint: update po/POTFILES.in

2 12

[libvirt] [PATCH v2] qemu: Use ShutdownVMDaemon for all startup cleanup paths
by Cole Robinson 20 May '10

20 May '10

The current cleanup: in StartVMDaemon path is a poor duplication. qemuShutdownVMDaemon can handle teardown for inactive VMs, so let's use it. v2: Remove old abort: label, only use cleanup: Signed-off-by: Cole Robinson <crobinso(a)redhat.com> --- src/qemu/qemu_driver.c | 37 ++++++++++--------------------------- 1 files changed, 10 insertions(+), 27 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index d387e69..3823dbd 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -3516,29 +3516,29 @@ static int qemudStartVMDaemon(virConnectPtr conn, DEBUG0("Waiting for monitor to show up"); if (qemudWaitForMonitor(driver, vm, pos) < 0) - goto abort; + goto cleanup; DEBUG0("Detecting VCPU PIDs"); if (qemuDetectVcpuPIDs(driver, vm) < 0) - goto abort; + goto cleanup; DEBUG0("Setting any required VM passwords"); if (qemuInitPasswords(conn, driver, vm, qemuCmdFlags) < 0) - goto abort; + goto cleanup; /* If we have -device, then addresses are assigned explicitly. * If not, then we have to detect dynamic ones here */ if (!(qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE)) { DEBUG0("Determining domain device PCI addresses"); if (qemuInitPCIAddresses(driver, vm) < 0) - goto abort; + goto cleanup; } DEBUG0("Setting initial memory amount"); qemuDomainObjEnterMonitorWithDriver(driver, vm); if (qemuMonitorSetBalloon(priv->mon, vm->def->memory) < 0) { qemuDomainObjExitMonitorWithDriver(driver, vm); - goto abort; + goto cleanup; } if (migrateFrom == NULL) { @@ -3549,7 +3549,7 @@ static int qemudStartVMDaemon(virConnectPtr conn, qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("resume operation failed")); qemuDomainObjExitMonitorWithDriver(driver, vm); - goto abort; + goto cleanup; } } qemuDomainObjExitMonitorWithDriver(driver, vm); @@ -3557,7 +3557,7 @@ static int qemudStartVMDaemon(virConnectPtr conn, DEBUG0("Writing domain status to disk"); if (virDomainSaveStatus(driver->caps, driver->stateDir, vm) < 0) - goto abort; + goto cleanup; if (logfile != -1) close(logfile); @@ -3565,26 +3565,9 @@ static int qemudStartVMDaemon(virConnectPtr conn, return 0; cleanup: - /* We jump here if we failed to start the VM for any reason - * XXX investigate if we can kill this block and safely call - * qemudShutdownVMDaemon even though no PID is running */ - qemuDomainReAttachHostDevices(driver, vm->def); - - if (driver->securityDriver && - driver->securityDriver->domainRestoreSecurityAllLabel) - driver->securityDriver->domainRestoreSecurityAllLabel(vm, 0); - if (driver->securityDriver && - driver->securityDriver->domainReleaseSecurityLabel) - driver->securityDriver->domainReleaseSecurityLabel(vm); - qemuRemoveCgroup(driver, vm, 1); - if (logfile != -1) - close(logfile); - vm->def->id = -1; - return -1; - -abort: - /* We jump here if we failed to initialize the now running VM - * killing it off and pretend we never started it */ + /* We jump here if we failed to start the VM for any reason, or + * if we failed to initialize the now running VM. kill it off and + * pretend we never started it */ qemudShutdownVMDaemon(driver, vm, 0); if (logfile != -1) -- 1.6.6.1

2 2

[libvirt] [PATCH] daemon: A few initscript corrections
by Cole Robinson 20 May '10

20 May '10

Fedora bug https://bugzilla.redhat.com/show_bug.cgi?id=565238 - Avahi service is called 'avahi-daemon' - chkconfig descriptions must use \ for line continuations Signed-off-by: Cole Robinson <crobinso(a)redhat.com> --- daemon/libvirtd.init.in | 6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-) diff --git a/daemon/libvirtd.init.in b/daemon/libvirtd.init.in index d4dc98b..809433e 100644 --- a/daemon/libvirtd.init.in +++ b/daemon/libvirtd.init.in @@ -9,7 +9,7 @@ # Should-Start: $named # Should-Start: xend # Should-Start: hal -# Should-Start: avahi +# Should-Start: avahi-daemon # Required-Stop: $network messagebus # Should-Stop: $named # Default-Start: 3 4 5 @@ -24,8 +24,8 @@ # libvirtd: guest and virtual network management daemon # # chkconfig: 345 97 03 -# description: This is a daemon for managing guest instances -# and libvirt virtual networks +# description: This is a daemon for managing guest instances \ +# and libvirt virtual networks \ # See http://libvirt.org # # processname: libvirtd -- 1.6.6.1

2 2

Re: [libvirt] libvirt and Ruby
by Chris Lalancette 20 May '10

20 May '10

On 05/20/2010 01:53 PM, Jaromír Červenka wrote: > Hi Chris, > > thank you for your answer. That will be great! :) I decided that I > will write this deamon with Ruby and with old ruby bindings at least, > so this is good news for me :) > > My friend from suse (Michal Hrusecky) did two patches till now - one > is for virNodeGetFreememory a the second implements > virConnectGetLibVersion. He sent these patches to David Lutterkort, > but without answer. Do you want them? > > Sorry for my EN :/ (please leave the list CC'ed; other people might be interested in the status of the Ruby bindings). Your English is just fine :). If you could send those patches to the libvirt list (and CC me), that would be great; I also have commit access to the ruby repository, so assuming they are OK I can add them. Thanks, -- Chris Lalancette

1 0

[libvirt] [PATCH] qemu: Genericize tapfds/ntapfds
by Alex Williamson 20 May '10

20 May '10

There doesn't seem to be anything specific to tap devices for this array of file descriptors which need to stay open of the guest to use. Rename then for others to make use of. Signed-off-by: Alex Williamson <alex.williamson(a)redhat.com> --- src/qemu/qemu_conf.c | 28 ++++++++++++++-------------- src/qemu/qemu_driver.c | 18 +++++++++--------- 2 files changed, 23 insertions(+), 23 deletions(-) diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c index 3e334dc..d7bc798 100644 --- a/src/qemu/qemu_conf.c +++ b/src/qemu/qemu_conf.c @@ -3422,8 +3422,8 @@ int qemudBuildCommandLine(virConnectPtr conn, unsigned long long qemuCmdFlags, const char ***retargv, const char ***retenv, - int **tapfds, - int *ntapfds, + int **vmfds, + int *nvmfds, const char *migrateFrom, virDomainSnapshotObjPtr current_snapshot) { @@ -4116,7 +4116,7 @@ int qemudBuildCommandLine(virConnectPtr conn, if (tapfd < 0) goto error; - if (VIR_REALLOC_N(*tapfds, (*ntapfds)+1) < 0) { + if (VIR_REALLOC_N(*vmfds, (*nvmfds)+1) < 0) { virNWFilterTearNWFilter(net); close(tapfd); goto no_memory; @@ -4124,7 +4124,7 @@ int qemudBuildCommandLine(virConnectPtr conn, last_good_net = i; - (*tapfds)[(*ntapfds)++] = tapfd; + (*vmfds)[(*nvmfds)++] = tapfd; if (snprintf(tapfd_name, sizeof(tapfd_name), "%d", tapfd) >= sizeof(tapfd_name)) goto no_memory; @@ -4136,7 +4136,7 @@ int qemudBuildCommandLine(virConnectPtr conn, if (tapfd < 0) goto error; - if (VIR_REALLOC_N(*tapfds, (*ntapfds)+1) < 0) { + if (VIR_REALLOC_N(*vmfds, (*nvmfds)+1) < 0) { virNWFilterTearNWFilter(net); close(tapfd); goto no_memory; @@ -4144,7 +4144,7 @@ int qemudBuildCommandLine(virConnectPtr conn, last_good_net = i; - (*tapfds)[(*ntapfds)++] = tapfd; + (*vmfds)[(*nvmfds)++] = tapfd; if (snprintf(tapfd_name, sizeof(tapfd_name), "%d", tapfd) >= sizeof(tapfd_name)) goto no_memory; @@ -4157,12 +4157,12 @@ int qemudBuildCommandLine(virConnectPtr conn, network device */ int vhostfd = qemudOpenVhostNet(net, qemuCmdFlags); if (vhostfd >= 0) { - if (VIR_REALLOC_N(*tapfds, (*ntapfds)+1) < 0) { + if (VIR_REALLOC_N(*vmfds, (*nvmfds)+1) < 0) { close(vhostfd); goto no_memory; } - (*tapfds)[(*ntapfds)++] = vhostfd; + (*vmfds)[(*nvmfds)++] = vhostfd; if (snprintf(vhostfd_name, sizeof(vhostfd_name), "%d", vhostfd) >= sizeof(vhostfd_name)) goto no_memory; @@ -4653,12 +4653,12 @@ int qemudBuildCommandLine(virConnectPtr conn, error: for (i = 0; i <= last_good_net; i++) virNWFilterTearNWFilter(def->nets[i]); - if (tapfds && - *tapfds) { - for (i = 0; i < *ntapfds; i++) - close((*tapfds)[i]); - VIR_FREE(*tapfds); - *ntapfds = 0; + if (vmfds && + *vmfds) { + for (i = 0; i < *nvmfds; i++) + close((*vmfds)[i]); + VIR_FREE(*vmfds); + *nvmfds = 0; } if (qargv) { for (i = 0 ; i < qargc ; i++) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 65ca117..dd5bd24 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -3253,8 +3253,8 @@ static int qemudStartVMDaemon(virConnectPtr conn, const char **progenv = NULL; int i, ret; struct stat sb; - int *tapfds = NULL; - int ntapfds = 0; + int *vmfds = NULL; + int nvmfds = 0; unsigned long long qemuCmdFlags; fd_set keepfd; const char *emulator; @@ -3411,7 +3411,7 @@ static int qemudStartVMDaemon(virConnectPtr conn, vm->def->id = driver->nextvmid++; if (qemudBuildCommandLine(conn, driver, vm->def, priv->monConfig, priv->monJSON, qemuCmdFlags, &argv, &progenv, - &tapfds, &ntapfds, migrateFrom, + &vmfds, &nvmfds, migrateFrom, vm->current_snapshot) < 0) goto cleanup; @@ -3462,8 +3462,8 @@ static int qemudStartVMDaemon(virConnectPtr conn, VIR_WARN("Unable to seek to end of logfile: %s", virStrerror(errno, ebuf, sizeof ebuf)); - for (i = 0 ; i < ntapfds ; i++) - FD_SET(tapfds[i], &keepfd); + for (i = 0 ; i < nvmfds ; i++) + FD_SET(vmfds[i], &keepfd); ret = virExecDaemonize(argv, progenv, &keepfd, &child, stdin_fd, &logfile, &logfile, @@ -3504,11 +3504,11 @@ static int qemudStartVMDaemon(virConnectPtr conn, if (ret == -1) /* The VM failed to start; tear filters before taps */ virNWFilterTearVMNWFilters(vm); - if (tapfds) { - for (i = 0 ; i < ntapfds ; i++) { - close(tapfds[i]); + if (vmfds) { + for (i = 0 ; i < nvmfds ; i++) { + close(vmfds[i]); } - VIR_FREE(tapfds); + VIR_FREE(vmfds); } if (ret == -1) /* The VM failed to start */

4 3

[libvirt] [PATCH] qemu driver: fix version check typos
by Chris Wright 20 May '10

20 May '10

Looks like some cut'n paste error to me. Signed-off-by: Chris Wright <chrisw(a)redhat.com> --- src/qemu/qemu_conf.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c index 3e334dc..6d2ac6e 100644 --- a/src/qemu/qemu_conf.c +++ b/src/qemu/qemu_conf.c @@ -1291,13 +1291,13 @@ int qemudParseHelpStr(const char *qemu, ++p; minor = virParseNumber(&p); - if (major == -1 || *p != '.') + if (minor == -1 || *p != '.') goto fail; ++p; micro = virParseNumber(&p); - if (major == -1) + if (micro == -1) goto fail; SKIP_BLANKS(p);

4 8

[libvirt] How to enable vhost for virtIO NIC?
by Huang, Zhiteng 20 May '10

20 May '10

Hi gurus on the list, I'm trying to bring up a Linux with virtio vhost backend. My system is running on kernel 2.6.34-rc7, libvirt 0.8.0. Two questions regarding to vhost: 1) XML format for vhost I didn't find any documents on libvirt.org description the XML or QMU argument format for vhost. According to http://www.linux-kvm.org/page/VhostNet#vhost-net_driver_projects, I tried *domxml-from-native* to convert following qemu argument to XML qemu-system-x86_64 -m 1G disk-c.qcow2 \ -net nic,model=virtio,netdev=foo \ -netdev tap,id=foo,ifname=msttap0,script=/home/mst/ifup,downscript=no,vhost=on But the output clearly ignore the network. <domain type='qemu'> <name>unnamed</name> <uuid>9cc877c1-7ac2-463d-3d3f-fa8f8918fe23</uuid> <memory>1048576</memory> <currentMemory>1048576</currentMemory> <vcpu>1</vcpu> <os> <type arch='x86_64'>hvm</type> </os> <features> <acpi/> </features> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <devices> <emulator>qemu-system-x86_64</emulator> <input type='mouse' bus='ps2'/> <graphics type='sdl'/> <video> <model type='cirrus' vram='9216' heads='1'/> </video> </devices> </domain> What's the problem here? 2) Virtio driver. It's said that vhost require guest kernel version > 2.6.31 because vhost requires MSI-X. How about frontend of virtio driver? Say I'm running a Windows 2008 (with MSI-X support) + virtio NIC, is it necessary to upgrade frontend driver too? Regards, HUANG, Zhiteng

3 4

[libvirt] [PATCH 0/4] qemu: Unify cleanup paths in qemuStartVMDaemon
by Cole Robinson 20 May '10

20 May '10

Many of the cleanup paths in qemuStartVMDaemon have the potential of squashing a legitimate startup error message. qemuShutdownVMDaemon already properly handles this, so let's unify all the cleanup to use it. This series fixes a few teardown issues, and changes ShutdownVMDaemon to not reject non-running VMs. This could be an issue if some caller was depending on this functionality, but I couldn't find one. Cole Robinson (4): qemu: Properly cleanup in security startup error path qemu: Remove explicit VNC XML cleanup qemu: Don't deny ShutdownVMDaemon for non-running VMs qemu: Use ShutdownVMDaemon for all startup cleanup paths src/qemu/qemu_driver.c | 31 +++++-------------------------- 1 files changed, 5 insertions(+), 26 deletions(-)

2 10

[libvirt] [PATCH 1/2] maint: avoid unwanted newline at end of diagnostic
by Jim Meyering 20 May '10

20 May '10

While I was in the virtual vicinity, Jiri mentioned the possibility of detecting one more minor formatting problem: the stray newline at the end of a diagnostic. Here are two corrections and the heuristic that caught them (and that will prevent introduction of some new ones -- but not if the end of the message is more than 2 lines after the function name). Currently there are no false positives. >From 122b1e31fb33c092a53802b56a0f2f5586c95bd5 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Thu, 20 May 2010 11:12:17 +0200 Subject: [PATCH 1/2] maint: remove unwanted newline at end of diagnostic * src/xen/xend_internal.c (xenDaemonDomainDefineXML): Remove \n. * src/network/bridge_driver.c (networkAddMasqueradingIptablesRules): Likewise. --- src/network/bridge_driver.c | 2 +- src/xen/xend_internal.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c index 3b9b4f4..5d7ef19 100644 --- a/src/network/bridge_driver.c +++ b/src/network/bridge_driver.c @@ -642,7 +642,7 @@ networkAddMasqueradingIptablesRules(struct network_driver *driver, network->def->network, network->def->forwardDev))) { virReportSystemError(err, - _("failed to add iptables rule to enable masquerading to '%s'\n"), + _("failed to add iptables rule to enable masquerading to '%s'"), network->def->forwardDev ? network->def->forwardDev : NULL); goto masqerr3; } diff --git a/src/xen/xend_internal.c b/src/xen/xend_internal.c index ea5addd..a203a8d 100644 --- a/src/xen/xend_internal.c +++ b/src/xen/xend_internal.c @@ -4731,7 +4731,7 @@ virDomainPtr xenDaemonDomainDefineXML(virConnectPtr conn, const char *xmlDesc) { VIR_FREE(sexpr); if (ret != 0) { virXendError(VIR_ERR_XEN_CALL, - _("Failed to create inactive domain %s\n"), def->name); + _("Failed to create inactive domain %s"), def->name); goto error; } -- 1.7.1.259.g3aef8 >From 532672f3a0c53213609dab49df2e7efcaf0eb594 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Thu, 20 May 2010 11:13:41 +0200 Subject: [PATCH 2/2] maint: prohibit newline at end of diagnostic * cfg.mk (sc_prohibit_newline_at_end_of_diagnostic): New rule. Idea proposed by Jiri Denemark. --- cfg.mk | 14 ++++++++++++++ 1 files changed, 14 insertions(+), 0 deletions(-) diff --git a/cfg.mk b/cfg.mk index 2909e3e..b024c75 100644 --- a/cfg.mk +++ b/cfg.mk @@ -391,6 +391,20 @@ sc_libvirt_unmarked_diagnostics: { echo '$(ME): found unmarked diagnostic(s)' 1>&2; \ exit 1; } || : +# Like the above, but prohibit a newline at the end of a diagnostic. +# This is subject to false positives partly because it naively looks for +# `\n"', which may not be the end of the string, and also because it takes +# two lines of context (the -A2) after the line with the function name. +# FIXME: this rule might benefit from a separate function list, in case +# there are functions to which this one applies but that do not get marked +# diagnostics. +sc_prohibit_newline_at_end_of_diagnostic: + @grep -A2 -nE \ + '\<$(func_re) *\(' $$($(VC_LIST_EXCEPT)) \ + | grep '\\n"' \ + && { echo '$(ME): newline at end of message(s)' 1>&2; \ + exit 1; } || : + # Disallow trailing blank lines. sc_prohibit_trailing_blank_lines: @$(VC_LIST_EXCEPT) | xargs perl -ln -0777 -e \ -- 1.7.1.259.g3aef8

3 4

[libvirt] lxc_controller: don't ignore failed "accept"
by Jim Meyering 20 May '10

20 May '10

Initially I proposed a similar patch here: http://thread.gmane.org/gmane.comp.emulators.libvirt/20607 That thread languished, and Eric proposed a nearly identical patch: http://thread.gmane.org/gmane.comp.emulators.libvirt/21630 Here's a patch that should address the initial objection. Now, my only question is about which errno values to ignore. Obviously, EMFILE, EFAULT, etc. must not be ignored. I doubt EINTR and EBADF should be ignored, but haven't tried to prove the case. >From 6dcd15b0aa594f3d89e810e0a92aa75dab22903e Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Thu, 20 May 2010 14:30:36 +0200 Subject: [PATCH] lxc_controller.c: don't ignore failed "accept" * src/lxc/lxc_controller.c (ignorable_epoll_accept_errno): New function. (lxcControllerMain): Handle a failed accept carefully: most errno values indicate legitimate failure and must be fatal. However, ignore a special case: that in which an incoming client quits between the poll() indicating its presence, and our accept() which is trying to process it. --- src/lxc/lxc_controller.c | 23 +++++++++++++++++++++++ 1 files changed, 23 insertions(+), 0 deletions(-) diff --git a/src/lxc/lxc_controller.c b/src/lxc/lxc_controller.c index 6b64372..75a45e9 100644 --- a/src/lxc/lxc_controller.c +++ b/src/lxc/lxc_controller.c @@ -269,6 +269,17 @@ typedef struct _lxcTtyForwardFd_t { int active; } lxcTtyForwardFd_t; +/* Return true if it is ok to ignore an accept-after-epoll syscall + that fails with the specified errno value. Else false. */ +static bool +ignorable_epoll_accept_errno(int erratum) +{ + return (errnum == EINVAL + || errnum == ECONNABORTED + || errnum == EAGAIN + || errnum == EWOULDBLOCK); +} + /** * lxcControllerMain * @monitor: server socket fd to accept client requests @@ -350,6 +361,18 @@ static int lxcControllerMain(int monitor, if (numEvents > 0) { if (epollEvent.data.fd == monitor) { int fd = accept(monitor, NULL, 0); + if (fd < 0) { + /* First reflex may be simply to declare accept failure + to be a fatal error. However, accept may fail when + a client quits between the above epoll_wait and here. + That case is not fatal, but rather to be expected, + if not common, so ignore it. */ + if (ignorable_epoll_accept_errno(errno)) + continue; + virReportSystemError(errno, "%s", + _("accept(monitor,...) failed")); + goto cleanup; + } if (client != -1) { /* Already connected, so kick new one out */ close(fd); continue; -- 1.7.1.262.g5ef3d

2 2

[libvirt] libvirt and Ruby
by Jaromír Červenka 20 May '10

20 May '10

Hello everyone, is there any possibility that the Ruby bindings for libvirt will be updated? I am currently createing a web interface for libivirt. This web app is written in Ruby on Rails. Now I am in phase when I have to create a deamon (which will do a "background jobs" and will comunicate with libvirt) and I would like to write this deamon in Ruby also, but interface for libvirt is old and not actual. The other possibility is write this deamon in C# (mono), 'cause from C# is very easy to call external functions from your library. Thank you for answer, -- Greetings, Jaromír Červenka Official openSUSE community member Web: http://www.cervajz.com/ Jabber: cervajz(a)cervajz.com MSN: jara.cervenka(a)seznam.cz Tel.: +420 607 592 687 Alt. e-mails: jaromir.cervenka(a)opensuse.org, jaromir.cervenka(a)speel.cz

2 1

[libvirt] [PATCH] libvirtd: don't ignore virInitialize failure
by Jim Meyering 20 May '10

20 May '10

I almost missed this; it was so similar to what I though was the sole ignore-virInitialize-failure bug (in python set-up) that I thought I'd already fixed it. >From f48e364b6f2182f7fa88862b2e1a789e2d83a027 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Thu, 20 May 2010 09:52:20 +0200 Subject: [PATCH] libvirtd: don't ignore virInitialize failure * daemon/libvirtd.c (main): Diagnose virInitialize failure and exit nonzero. --- daemon/libvirtd.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/daemon/libvirtd.c b/daemon/libvirtd.c index afa10fb..aac2d08 100644 --- a/daemon/libvirtd.c +++ b/daemon/libvirtd.c @@ -3028,7 +3028,10 @@ int main(int argc, char **argv) { {0, 0, 0, 0} }; - virInitialize(); + if (virInitialize() < 0) { + fprintf (stderr, _("libvirtd: initialization failed\n")); + exit (EXIT_FAILURE); + } while (1) { int optidx = 0; -- 1.7.1.259.g3aef8

2 2

[libvirt] ANNOUNCE: Release of Sys::Virt 0.2.4
by Daniel P. Berrange 20 May '10

20 May '10

There is now a new release of the Perl binding, Sys::Virt 0.2.4, available on CPAN: http://search.cpan.org/dist/Sys-Virt/ Direct download link http://search.cpan.org/CPAN/authors/id/D/DA/DANBERR/Sys-Virt-0.2.4.tar.gz The changes since 0.2.3: - Add all APIs + constants from 0.7.7, 0.8.0 & 0.8.1 releases - Requires libvirt >= 0.8.1 Regards, Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://deltacloud.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

1 0

[libvirt] Different VLAN IDs
by Csom Gyula 20 May '10

20 May '10

Hi there, We experienced network problems (namely net packet storm), when using multiple NICs and the same VLAN ID-s for different KVM guests. It turned out that we could workaround the problem by simply assigning different VLAN ID-s to the different NICs. (Btw our case looked similar to the one that was posted and discussed on the KVM mailing list. Also the solution was picked from that discussion. See: http://www.mail-archive.com/kvm@vger.kernel.org/msg24203.html, for details) We could resolve the problem at the KVM layer, however we have to do it at the libvirt layer, too. Running thru qemu_conf.c, and executing some unit tests with different type of interfaces (eg. ethernet, bridge, network), it turned out, that libvirt reassigns the same vlan ids to the guests starting from 0... So far the only solution we could figure out is to use a wrapper script around the KVM binary that replaces VLAN ID-s with unique ones. This one was picked up from a recent discussion on the upcoming debug API (http://www.mail-archive.com/libvir-list@redhat.com/msg23140.html) However the method was marked fragile in the list, due the evolving nature of the libvirt API. My questions: - Did anyone experience similar problems, and come up with a clean solution? Specially is there any better way to provide unique VLAN ID-s thru libvirt then the above one? As far as I see the upcoming -netdev option (introduced in QEMU 0.12) will solve the question. However this was removed from libvirt, since the corresponding qemu monitor command is not yet developed: - Do you have a target release for the -netdev option, or is it unknown (eg. dependent on the yet unknown KVM/QEMU development schedule)? Cheers, Gyula Ps.: our env: Debian GNU/Linux, libvirt, kvm, ebtables

2 3

[libvirt] [PATCH] esx: Make esxVI_*_CastFromAnyType dynamically dispatched
by Matthias Bolte 20 May '10

20 May '10

This will be used in the ESX storage driver in order to handle the DatastoreInfo type and inheriting types properly. --- src/esx/esx_vi_generator.py | 13 ++++++++++++- src/esx/esx_vi_types.c | 28 +++++++++++++++++++++------- 2 files changed, 33 insertions(+), 8 deletions(-) diff --git a/src/esx/esx_vi_generator.py b/src/esx/esx_vi_generator.py index d249e2d..6ae13c0 100755 --- a/src/esx/esx_vi_generator.py +++ b/src/esx/esx_vi_generator.py @@ -765,7 +765,18 @@ class Object: # cast from any type if self.features & Object.FEATURE__ANY_TYPE: source += "/* esxVI_%s_CastFromAnyType */\n" % self.name - source += "ESX_VI__TEMPLATE__CAST_FROM_ANY_TYPE(%s)\n" % self.name + source += "ESX_VI__TEMPLATE__CAST_FROM_ANY_TYPE(%s,\n" % self.name + + if self.extended_by is None: + source += "{\n" + source += "})\n\n" + else: + source += "{\n" + + for extended_by in self.extended_by: + source += " ESX_VI__TEMPLATE__DISPATCH__CAST_FROM_ANY_TYPE(%s)\n" % extended_by + + source += "})\n\n" if self.features & Object.FEATURE__LIST: source += "/* esxVI_%s_CastListFromAnyType */\n" % self.name diff --git a/src/esx/esx_vi_types.c b/src/esx/esx_vi_types.c index de2839f..8334efd 100644 --- a/src/esx/esx_vi_types.c +++ b/src/esx/esx_vi_types.c @@ -183,7 +183,7 @@ -#define ESX_VI__TEMPLATE__CAST_FROM_ANY_TYPE(_type) \ +#define ESX_VI__TEMPLATE__CAST_FROM_ANY_TYPE(_type, _dispatch) \ int \ esxVI_##_type##_CastFromAnyType(esxVI_AnyType *anyType, \ esxVI_##_type **ptrptr) \ @@ -194,11 +194,16 @@ return -1; \ } \ \ - if (anyType->type != esxVI_Type_##_type) { \ + switch (anyType->type) { \ + _dispatch \ + \ + case esxVI_Type_##_type: \ + break; \ + \ + default: \ ESX_VI_ERROR(VIR_ERR_INTERNAL_ERROR, \ - "Expecting type '%s' but found '%s'", \ - esxVI_Type_ToString(esxVI_Type_##_type), \ - anyType->other); \ + _("Call to %s for unexpected type '%s'"), \ + __FUNCTION__, anyType->other); \ return -1; \ } \ \ @@ -505,7 +510,7 @@ \ default: \ ESX_VI_ERROR(VIR_ERR_INTERNAL_ERROR, \ - "Call to %s for unexpected type '%s'", __FUNCTION__, \ + _("Call to %s for unexpected type '%s'"), __FUNCTION__, \ esxVI_Type_ToString(item->_type)); \ return _error_return; \ } @@ -526,6 +531,13 @@ +#define ESX_VI__TEMPLATE__DISPATCH__CAST_FROM_ANY_TYPE(_type) \ + case esxVI_Type_##_type: \ + return esxVI_##_type##_Deserialize(anyType->node, \ + (esxVI_##_type **)ptrptr); + + + #define ESX_VI__TEMPLATE__DISPATCH__SERIALIZE(_type) \ case esxVI_Type_##_type: \ return esxVI_##_type##_Serialize((esxVI_##_type *)item, element, \ @@ -1359,7 +1371,9 @@ ESX_VI__TEMPLATE__DEEP_COPY(ManagedObjectReference, ESX_VI__TEMPLATE__LIST__APPEND(ManagedObjectReference) /* esxVI_ManagedObjectReference_CastFromAnyType */ -ESX_VI__TEMPLATE__CAST_FROM_ANY_TYPE(ManagedObjectReference) +ESX_VI__TEMPLATE__CAST_FROM_ANY_TYPE(ManagedObjectReference, +{ +}) /* esxVI_ManagedObjectReference_CastListFromAnyType */ ESX_VI__TEMPLATE__LIST__CAST_FROM_ANY_TYPE(ManagedObjectReference) -- 1.7.0.4

2 2

[libvirt] [PATCH] esx: Allow esxVI_X_DynamicCast to be called successfully on X objects
by Matthias Bolte 20 May '10

20 May '10

This semantic will be used in the ESX storage driver. --- src/esx/esx_vi_types.c | 16 +++++++++------- 1 files changed, 9 insertions(+), 7 deletions(-) diff --git a/src/esx/esx_vi_types.c b/src/esx/esx_vi_types.c index 7d2c02c..de2839f 100644 --- a/src/esx/esx_vi_types.c +++ b/src/esx/esx_vi_types.c @@ -540,6 +540,13 @@ +#define ESX_VI__TEMPLATE__DYNAMIC_CAST__ACCEPT(__type) \ + if (((esxVI_Object *)item)->_type == esxVI_Type_##__type) { \ + return item; \ + } + + + #define ESX_VI__TEMPLATE__DYNAMIC_CAST(__type, _accept) \ esxVI_##__type * \ esxVI_##__type##_DynamicCast(void *item) \ @@ -550,6 +557,8 @@ return NULL; \ } \ \ + ESX_VI__TEMPLATE__DYNAMIC_CAST__ACCEPT(__type) \ + \ _accept \ \ return NULL; \ @@ -557,13 +566,6 @@ -#define ESX_VI__TEMPLATE__DYNAMIC_CAST__ACCEPT(__type) \ - if (((esxVI_Object *)item)->_type == esxVI_Type_##__type) { \ - return item; \ - } - - - #define ESX_VI__TEMPLATE__DYNAMIC_SERIALIZE(__type, _dispatch, _serialize) \ ESX_VI__TEMPLATE__SERIALIZE_EXTRA(__type, \ ESX_VI__TEMPLATE__DISPATCH(__type, _dispatch, -1), \ -- 1.7.0.4

2 2

[libvirt] [PATCH v4] vepa: parsing for 802.1Qb{g|h} XML
by Stefan Berger 19 May '10

19 May '10

Below is David Alan's original patch with lots of changes. In particular, it now parses the following two XML descriptions, one for 802.1Qbg and 802.1Qbh and stored the data internally. The actual triggering of the switch setup protocol has not been implemented here but the relevant code to do that should go into the functions associatePortProfileId() and disassociatePortProfileId(). <interface type='direct'> <source dev='static' mode='vepa'/> <model type='virtio'/> <vsi type='802.1Qbg'> <parameters managerid='12' typeid='0x123456' typeidversion='1' instanceid='fa9b7fff-b0a0-4893-8e0e-beef4ff18f8f'/> </vsi> <filterref filter='clean-traffic'/> </interface> <interface type='direct'> <source dev='static' mode='vepa'/> <model type='virtio'/> <vsi type='802.1Qbh'> <parameters profileid='my_profile'/> </vsi> </interface> I'd suggest to use this patch as a base for triggering the setup protocol with the 802.1Qb{g|h} switch. Changes from V3 to V4: - moving the associate and disassociate functions to the end of the file for subsequent patches to easier make them generally available for export - passing the macvtap interface name rather than the link device since this otherwise gives funny side effects when using netlink messages where IFLA_IFNAME and IFLA_ADDRESS are specified and the link dev all of a sudden gets the MAC address of the macvtap interface. - Removing rc = -1 error indications in the case of 802.1Qbg|h setup in case we wanted to use hook scripts for the setup and so the setup doesn't fail here. Changes from V2 to V3: - if instance ID UUID is not supplied it will automatically be generated - adapted schema to make instance ID UUID optional - added test case Some of the changes from V1 to V2: - parser and XML generator have been separated into their own functions so they can be re-used elsewhere (passthrough case for example) - Adapted XML parser and generator support the above shown type (802.1Qbg, 802.1Qbh). - Adapted schema to above XML - Adapted test XML to above XML - Passing through the VM's UUID which seems to be necessary for 802.1Qbh -- sorry no host UUID - adding virtual function ID to association function, in case it's necessary to use (for SR-IOV) Signed-off-by: Stefan Berger <stefanb(a)us.ibm.com> >From a945107f047c7cd71f9c1b74fd74c47d8cdc3670 Mon Sep 17 00:00:00 2001 From: David Allan <dallan(a)redhat.com> Date: Fri, 12 Mar 2010 13:25:04 -0500 Subject: [PATCH 1/1] POC of port profile id support * Modified schema per DanPB's feedback * Added test for modified schema --- docs/schemas/domain.rng | 69 +++++++++++++ src/conf/domain_conf.c | 155 +++++++++++++++++++++++++++++++ src/conf/domain_conf.h | 35 +++++++ src/qemu/qemu_conf.c | 18 +-- src/qemu/qemu_conf.h | 5 - src/qemu/qemu_driver.c | 17 +-- src/util/macvtap.c | 165 +++++++++++++++++++++++++++++---- src/util/macvtap.h | 10 +- tests/domainschemadata/portprofile.xml | 36 +++++++ 9 files changed, 460 insertions(+), 50 deletions(-) create mode 100644 tests/domainschemadata/portprofile.xml Index: libvirt-acl/docs/schemas/domain.rng =================================================================== --- libvirt-acl.orig/docs/schemas/domain.rng +++ libvirt-acl/docs/schemas/domain.rng @@ -817,6 +817,9 @@ </optional> <empty/> </element> + <optional> + <ref name="vsiProfile"/> + </optional> <ref name="interface-options"/> </interleave> </group> @@ -902,6 +905,45 @@ </optional> </interleave> </define> + <define name="vsiProfile"> + <choice> + <group> + <element name="vsi"> + <attribute name="type"> + <value>802.1Qbg</value> + </attribute> + <element name="parameters"> + <attribute name="managerid"> + <ref name="uint8range"/> + </attribute> + <attribute name="typeid"> + <ref name="uint24range"/> + </attribute> + <attribute name="typeidversion"> + <ref name="uint8range"/> + </attribute> + <optional> + <attribute name="instanceid"> + <ref name="UUID"/> + </attribute> + </optional> + </element> + </element> + </group> + <group> + <element name="vsi"> + <attribute name="type"> + <value>802.1Qbh</value> + </attribute> + <element name="parameters"> + <attribute name="profileid"> + <ref name="vsiProfileID"/> + </attribute> + </element> + </element> + </group> + </choice> + </define>  @@ -1769,4 +1811,31 @@ <param name="pattern">[a-zA-Z0-9_\.:]+</param> </data> </define> + <define name="uint8range"> + <choice> + <data type="string"> + <param name="pattern">0x[0-9a-fA-F]{1,2}</param> + </data> + <data type="int"> + <param name="minInclusive">0</param> + <param name="maxInclusive">255</param> + </data> + </choice> + </define> + <define name="uint24range"> + <choice> + <data type="string"> + <param name="pattern">0x[0-9a-fA-F]{1,6}</param> + </data> + <data type="int"> + <param name="minInclusive">0</param> + <param name="maxInclusive">16777215</param> + </data> + </choice> + </define> + <define name="vsiProfileID"> + <data type="string"> + <param name="maxLength">39</param> + </data> + </define> </grammar> Index: libvirt-acl/src/conf/domain_conf.c =================================================================== --- libvirt-acl.orig/src/conf/domain_conf.c +++ libvirt-acl/src/conf/domain_conf.c @@ -242,6 +242,11 @@ VIR_ENUM_IMPL(virDomainNetdevMacvtap, VI "private", "bridge") +VIR_ENUM_IMPL(virVSI, VIR_VSI_TYPE_LAST, + "none", + "802.1Qbg", + "802.1Qbh") + VIR_ENUM_IMPL(virDomainClockOffset, VIR_DOMAIN_CLOCK_OFFSET_LAST, "utc", "localtime", @@ -1807,6 +1812,145 @@ isValidIfname(const char *ifname) { } +static void +virVSIProfileDefParseXML(xmlNodePtr node, + virVSIProfileDefPtr vsi) +{ + char *vsiType; + char *vsiManagerID = NULL; + char *vsiTypeID = NULL; + char *vsiTypeIDVersion = NULL; + char *vsiInstanceID = NULL; + char *vsiProfileID = NULL; + xmlNodePtr cur = node->children; + + vsiType = virXMLPropString(node, "type"); + if (!vsiType) + return; + + while (cur != NULL) { + if (xmlStrEqual(cur->name, BAD_CAST "parameters")) { + + vsiManagerID = virXMLPropString(cur, "managerid"); + vsiTypeID = virXMLPropString(cur, "typeid"); + vsiTypeIDVersion = virXMLPropString(cur, "typeidversion"); + vsiInstanceID = virXMLPropString(cur, "instanceid"); + vsiProfileID = virXMLPropString(cur, "profileid"); + + break; + } + + cur = cur->next; + } + + vsi->vsiType = VIR_VSI_NONE; + + switch (virVSITypeFromString(vsiType)) { + + case VIR_VSI_8021QBG: + if (vsiManagerID != NULL && vsiTypeID != NULL && + vsiTypeIDVersion != NULL) { + unsigned int val; + + if ((virStrToLong_ui(vsiManagerID, NULL, 10, &val) && + virStrToLong_ui(vsiManagerID, NULL, 16, &val) ) || + val > 0xff) + break; + + vsi->u.vsi8021Qbg.managerID = (uint8_t)val; + + if ((virStrToLong_ui(vsiTypeID, NULL, 10, &val) && + virStrToLong_ui(vsiTypeID, NULL, 16, &val) ) || + val > 0xffffff) + break; + + vsi->u.vsi8021Qbg.typeID = (uint32_t)val; + + if ((virStrToLong_ui(vsiTypeIDVersion, NULL, 10, &val) && + virStrToLong_ui(vsiTypeIDVersion, NULL, 16, &val) ) || + val > 0xff) + break; + + vsi->u.vsi8021Qbg.typeIDVersion = (uint8_t)val; + + if (vsiInstanceID != NULL) { + if (virUUIDParse(vsiInstanceID, vsi->u.vsi8021Qbg.instanceID)) + break; + } else { + if (virUUIDGenerate(vsi->u.vsi8021Qbg.instanceID)) + break; + } + + vsi->vsiType = VIR_VSI_8021QBG; + } + break; + + case VIR_VSI_8021QBH: + if (vsiProfileID != NULL) { + if (virStrcpyStatic(vsi->u.vsi8021Qbh.profileID, + vsiProfileID) != NULL) + vsi->vsiType = VIR_VSI_8021QBH; + } + break; + + + default: + case VIR_VSI_NONE: + case VIR_VSI_TYPE_LAST: + break; + } + + VIR_FREE(vsiManagerID); + VIR_FREE(vsiTypeID); + VIR_FREE(vsiTypeIDVersion); + VIR_FREE(vsiInstanceID); + VIR_FREE(vsiProfileID); + VIR_FREE(vsiType); +} + + +static void +virVSIProfileFormat(virBufferPtr buf, virVSIProfileDefPtr vsi, + const char *indent) +{ + char uuidstr[VIR_UUID_STRING_BUFLEN]; + + if (vsi->vsiType == VIR_VSI_NONE) + return; + + virBufferVSprintf(buf, "%s<vsi type='%s'>\n", + indent, virVSITypeToString(vsi->vsiType)); + + switch (vsi->vsiType) { + case VIR_VSI_NONE: + case VIR_VSI_TYPE_LAST: + break; + + case VIR_VSI_8021QBG: + virUUIDFormat(vsi->u.vsi8021Qbg.instanceID, + uuidstr); + virBufferVSprintf(buf, + "%s <parameters managerid='%d' typeid='%d' " + "typeidversion='%d' instanceid='%s'/>\n", + indent, + vsi->u.vsi8021Qbg.managerID, + vsi->u.vsi8021Qbg.typeID, + vsi->u.vsi8021Qbg.typeIDVersion, + uuidstr); + break; + + case VIR_VSI_8021QBH: + virBufferVSprintf(buf, + "%s <parameters profileid='%s'/>\n", + indent, + vsi->u.vsi8021Qbh.profileID); + break; + } + + virBufferVSprintf(buf, "%s</vsi>\n", indent); +} + + /* Parse the XML definition for a network interface * @param node XML nodeset to parse for net definition * @return 0 on success, -1 on failure @@ -1832,6 +1976,8 @@ virDomainNetDefParseXML(virCapsPtr caps, char *devaddr = NULL; char *mode = NULL; virNWFilterHashTablePtr filterparams = NULL; + virVSIProfileDef vsi; + bool vsiParsed = false; if (VIR_ALLOC(def) < 0) { virReportOOMError(); @@ -1873,6 +2019,11 @@ virDomainNetDefParseXML(virCapsPtr caps, xmlStrEqual(cur->name, BAD_CAST "source")) { dev = virXMLPropString(cur, "dev"); mode = virXMLPropString(cur, "mode"); + } else if ((vsiParsed == false) && + (def->type == VIR_DOMAIN_NET_TYPE_DIRECT) && + xmlStrEqual(cur->name, BAD_CAST "vsi")) { + virVSIProfileDefParseXML(cur, &vsi); + vsiParsed = true; } else if ((network == NULL) && ((def->type == VIR_DOMAIN_NET_TYPE_SERVER) || (def->type == VIR_DOMAIN_NET_TYPE_CLIENT) || @@ -2050,6 +2201,8 @@ virDomainNetDefParseXML(virCapsPtr caps, } else def->data.direct.mode = VIR_DOMAIN_NETDEV_MACVTAP_MODE_VEPA; + def->data.direct.vsiProfile = vsi; + def->data.direct.linkdev = dev; dev = NULL; @@ -5142,6 +5295,8 @@ virDomainNetDefFormat(virBufferPtr buf, virBufferVSprintf(buf, " mode='%s'", virDomainNetdevMacvtapTypeToString(def->data.direct.mode)); virBufferAddLit(buf, "/>\n"); + virVSIProfileFormat(buf, &def->data.direct.vsiProfile, + " "); break; case VIR_DOMAIN_NET_TYPE_USER: Index: libvirt-acl/src/conf/domain_conf.h =================================================================== --- libvirt-acl.orig/src/conf/domain_conf.h +++ libvirt-acl/src/conf/domain_conf.h @@ -259,6 +259,39 @@ enum virDomainNetdevMacvtapType { }; +enum virVSIType { + VIR_VSI_NONE, + VIR_VSI_8021QBG, + VIR_VSI_8021QBH, + + VIR_VSI_TYPE_LAST, +}; + +# ifdef IFLA_VF_PORT_PROFILE_MAX +# define LIBVIRT_IFLA_VF_PORT_PROFILE_MAX IFLA_VF_PORT_PROFILE_MAX +# else +# define LIBVIRT_IFLA_VF_PORT_PROFILE_MAX 40 +# endif + +/* profile data for macvtap (VEPA) */ +typedef struct _virVSIProfileDef virVSIProfileDef; +typedef virVSIProfileDef *virVSIProfileDefPtr; +struct _virVSIProfileDef { + enum virVSIType vsiType; + union { + struct { + uint8_t managerID; + uint32_t typeID; // 24 bit valid + uint8_t typeIDVersion; + unsigned char instanceID[VIR_UUID_BUFLEN]; + } vsi8021Qbg; + struct { + char profileID[LIBVIRT_IFLA_VF_PORT_PROFILE_MAX]; + } vsi8021Qbh; + } u; +}; + + /* Stores the virtual network interface configuration */ typedef struct _virDomainNetDef virDomainNetDef; typedef virDomainNetDef *virDomainNetDefPtr; @@ -290,6 +323,7 @@ struct _virDomainNetDef { struct { char *linkdev; int mode; + virVSIProfileDef vsiProfile; } direct; } data; char *ifname; @@ -1089,6 +1123,7 @@ VIR_ENUM_DECL(virDomainSeclabel) VIR_ENUM_DECL(virDomainClockOffset) VIR_ENUM_DECL(virDomainNetdevMacvtap) +VIR_ENUM_DECL(virVSI) VIR_ENUM_DECL(virDomainTimerName) VIR_ENUM_DECL(virDomainTimerTrack) Index: libvirt-acl/src/util/macvtap.c =================================================================== --- libvirt-acl.orig/src/util/macvtap.c +++ libvirt-acl/src/util/macvtap.c @@ -43,6 +43,7 @@ # include "util.h" # include "memory.h" +# include "logging.h" # include "macvtap.h" # include "interface.h" # include "conf/domain_conf.h" @@ -57,6 +58,19 @@ # define MACVTAP_NAME_PREFIX "macvtap" # define MACVTAP_NAME_PATTERN "macvtap%d" + +static int associatePortProfileId(const char *linkdev, + const unsigned char *mac, + int mode, + const virVSIProfileDefPtr vsi, + int vf, + const unsigned char *vmuuid); + +static int disassociatePortProfileId(const char *linkdev, + const unsigned char *mac, + const virVSIProfileDefPtr vsi); + + static int nlOpen(void) { int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE); @@ -567,39 +581,38 @@ configMacvtapTap(int tapfd, int vnet_hdr return 0; } - - /** * openMacvtapTap: * Create an instance of a macvtap device and open its tap character * device. * @tgifname: Interface name that the macvtap is supposed to have. May * be NULL if this function is supposed to choose a name - * @macaddress: The MAC address for the macvtap device - * @linkdev: The interface name of the NIC to connect to the external bridge - * @mode_str: String describing the mode. Valid are 'bridge', 'vepa' and - * 'private'. + * @net: pointer to the virDomainNetDef object describing the direct + * type if an interface * @res_ifname: Pointer to a string pointer where the actual name of the * interface will be stored into if everything succeeded. It is up * to the caller to free the string. + * @vnet_hdr: Whether to enable IFF_VNET_HDR on the interface + * @vmuuid: The (raw) UUID of the VM * * Returns file descriptor of the tap device in case of success, * negative value otherwise with error reported. * + * Open a macvtap device and trigger the switch setup protocol + * if valid port profile parameters were provided. */ int openMacvtapTap(const char *tgifname, - const unsigned char *macaddress, - const char *linkdev, - int mode, + virDomainNetDefPtr net, char **res_ifname, - int vnet_hdr) + int vnet_hdr, + const unsigned char *vmuuid) { const char *type = "macvtap"; int c, rc; char ifname[IFNAMSIZ]; int retries, do_retry = 0; - uint32_t macvtapMode = macvtapModeFromInt(mode); + uint32_t macvtapMode = macvtapModeFromInt(net->data.direct.mode); const char *cr_ifname; int ifindex; @@ -616,7 +629,7 @@ openMacvtapTap(const char *tgifname, return -1; } cr_ifname = tgifname; - rc = link_add(type, macaddress, 6, tgifname, linkdev, + rc = link_add(type, net->mac, 6, tgifname, net->data.direct.linkdev, macvtapMode, &do_retry); if (rc) return -1; @@ -626,7 +639,8 @@ create_name: for (c = 0; c < 8192; c++) { snprintf(ifname, sizeof(ifname), MACVTAP_NAME_PATTERN, c); if (ifaceGetIndex(false, ifname, &ifindex) == ENODEV) { - rc = link_add(type, macaddress, 6, ifname, linkdev, + rc = link_add(type, net->mac, 6, ifname, + net->data.direct.linkdev, macvtapMode, &do_retry); if (rc == 0) break; @@ -639,6 +653,15 @@ create_name: cr_ifname = ifname; } + rc = associatePortProfileId(cr_ifname, + net->mac, + net->data.direct.mode, + &net->data.direct.vsiProfile, + -1, + vmuuid); + if (rc != 0) + goto link_del_exit; + rc = ifaceUp(cr_ifname); if (rc != 0) { virReportSystemError(errno, @@ -647,7 +670,7 @@ create_name: "MAC address"), cr_ifname); rc = -1; - goto link_del_exit; + goto disassociate_exit; } rc = openTap(cr_ifname, 10); @@ -656,14 +679,19 @@ create_name: if (configMacvtapTap(rc, vnet_hdr) < 0) { close(rc); rc = -1; - goto link_del_exit; + goto disassociate_exit; } *res_ifname = strdup(cr_ifname); } else - goto link_del_exit; + goto disassociate_exit; return rc; +disassociate_exit: + disassociatePortProfileId(cr_ifname, + net->mac, + &net->data.direct.vsiProfile); + link_del_exit: link_del(cr_ifname); @@ -673,14 +701,111 @@ link_del_exit: /** * delMacvtap: - * @ifname : The name of the macvtap interface + * @net: pointer to virDomainNetDef object * - * Delete an interface given its name. + * Delete an interface given its name. Disassociate + * it with the switch if port profile parameters + * were provided. */ void -delMacvtap(const char *ifname) +delMacvtap(virDomainNetDefPtr net) { - link_del(ifname); + if (net->ifname) { + disassociatePortProfileId(net->ifname, + net->mac, + &net->data.direct.vsiProfile); + link_del(net->ifname); + } } #endif + + +/** + * associatePortProfile + * + * @macvtap_ifname: The name of the macvtap device + * @mac: the MAC address of the interface + * @mode: The vepa mode (private, bridge or vepa) + * @vsi: pointer to the object holding port profile parameters + * @vf: virtual function number, -1 if to be ignored + * @vmuuid : the UUID of the virtual machine + * + * Associate a port on a swtich with a profile. This function + * may notify a kernel driver or an external daemon to run + * the setup protocol. If profile parameters were not supplied + * by the user, then this function returns without doing + * anything. + * + * Returns 0 in case of success, != 0 otherwise with error + * having been reported. + */ +static int +associatePortProfileId(const char *macvtap_ifname, + const unsigned char *mac, + int mode, + const virVSIProfileDefPtr vsi, + int vf, + const unsigned char *vmuuid) +{ + int rc = 0; + VIR_DEBUG("Associating port profile '%p' on link device '%s' mode % d ", + vsi, macvtap_ifname, mode); + (void)mac; + (void)vf; + (void)vmuuid; + + switch (vsi->vsiType) { + case VIR_VSI_NONE: + case VIR_VSI_TYPE_LAST: + break; + + case VIR_VSI_8021QBG: + + break; + + case VIR_VSI_8021QBH: + + break; + } + + return rc; +} + + +/** + * disassociatePortProfile + * + * @macvtap_ifname: The name of the macvtap device + * @mac: The MAC address of the interface + * @vsi: point to object holding port profile parameters + * + * Returns 0 in case of success, != 0 otherwise with error + * having been reported. + */ +static int +disassociatePortProfileId(const char *macvtap_ifname, + const unsigned char *mac, + const virVSIProfileDefPtr vsi) +{ + int rc = 0; + VIR_DEBUG("Disassociating port profile id '%p' on link device '%s' ", + vsi, macvtap_ifname); + (void)mac; + + switch (vsi->vsiType) { + case VIR_VSI_NONE: + case VIR_VSI_TYPE_LAST: + break; + + case VIR_VSI_8021QBG: + + break; + + case VIR_VSI_8021QBH: + + break; + } + + return rc; +} Index: libvirt-acl/src/util/macvtap.h =================================================================== --- libvirt-acl.orig/src/util/macvtap.h +++ libvirt-acl/src/util/macvtap.h @@ -27,15 +27,15 @@ # if defined(WITH_MACVTAP) # include "internal.h" +# include "conf/domain_conf.h" int openMacvtapTap(const char *ifname, - const unsigned char *macaddress, - const char *linkdev, - int mode, + virDomainNetDefPtr net, char **res_ifname, - int vnet_hdr); + int vnet_hdr, + const unsigned char *vmuuid); -void delMacvtap(const char *ifname); +void delMacvtap(virDomainNetDefPtr net); # endif /* WITH_MACVTAP */ Index: libvirt-acl/tests/domainschemadata/portprofile.xml =================================================================== --- /dev/null +++ libvirt-acl/tests/domainschemadata/portprofile.xml @@ -0,0 +1,36 @@ +<domain type='lxc'> + <name>portprofile</name> + <uuid>00000000-0000-0000-0000-000000000000</uuid> + <memory>1048576</memory> + <os> + <type>exe</type> + <init>/sh</init> + </os> + <devices> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + <vsi type='802.1Qbg'> + <parameters managerid='12' typeid='1193046' typeidversion='1' + instanceid='fa9b7fff-b0a0-4893-8e0e-beef4ff18f8f'/> + </vsi> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + <vsi type='802.1Qbg'> + <parameters managerid='12' typeid='1193046' typeidversion='1'/> + </vsi> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + <vsi type='802.1Qbh'> + <parameters profileid='my_profile'/> + </vsi> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + </interface> + </devices> +</domain> Index: libvirt-acl/src/qemu/qemu_conf.h =================================================================== --- libvirt-acl.orig/src/qemu/qemu_conf.h +++ libvirt-acl/src/qemu/qemu_conf.h @@ -271,9 +271,8 @@ qemudOpenVhostNet(virDomainNetDefPtr net int qemudPhysIfaceConnect(virConnectPtr conn, struct qemud_driver *driver, virDomainNetDefPtr net, - char *linkdev, - int brmode, - unsigned long long qemuCmdFlags); + unsigned long long qemuCmdFlags, + const unsigned char *vmuuid); int qemudProbeMachineTypes (const char *binary, virCapsGuestMachinePtr **machines, Index: libvirt-acl/src/qemu/qemu_driver.c =================================================================== --- libvirt-acl.orig/src/qemu/qemu_driver.c +++ libvirt-acl/src/qemu/qemu_driver.c @@ -3694,10 +3694,8 @@ static void qemudShutdownVMDaemon(struct def = vm->def; for (i = 0; i < def->nnets; i++) { virDomainNetDefPtr net = def->nets[i]; - if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) { - if (net->ifname) - delMacvtap(net->ifname); - } + if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) + delMacvtap(net); } #endif @@ -7341,9 +7339,8 @@ static int qemudDomainAttachNetDevice(vi } if ((tapfd = qemudPhysIfaceConnect(conn, driver, net, - net->data.direct.linkdev, - net->data.direct.mode, - qemuCmdFlags)) < 0) + qemuCmdFlags, + vm->def->uuid)) < 0) return -1; } @@ -8386,10 +8383,8 @@ qemudDomainDetachNetDevice(struct qemud_ virNWFilterTearNWFilter(detach); #if WITH_MACVTAP - if (detach->type == VIR_DOMAIN_NET_TYPE_DIRECT) { - if (detach->ifname) - delMacvtap(detach->ifname); - } + if (detach->type == VIR_DOMAIN_NET_TYPE_DIRECT) + delMacvtap(detach); #endif if ((driver->macFilter) && (detach->ifname != NULL)) { Index: libvirt-acl/src/qemu/qemu_conf.c =================================================================== --- libvirt-acl.orig/src/qemu/qemu_conf.c +++ libvirt-acl/src/qemu/qemu_conf.c @@ -1465,9 +1465,8 @@ int qemudPhysIfaceConnect(virConnectPtr conn, struct qemud_driver *driver, virDomainNetDefPtr net, - char *linkdev, - int brmode, - unsigned long long qemuCmdFlags) + unsigned long long qemuCmdFlags, + const unsigned char *vmuuid) { int rc; #if WITH_MACVTAP @@ -1479,8 +1478,7 @@ qemudPhysIfaceConnect(virConnectPtr conn net->model && STREQ(net->model, "virtio")) vnet_hdr = 1; - rc = openMacvtapTap(net->ifname, net->mac, linkdev, brmode, - &res_ifname, vnet_hdr); + rc = openMacvtapTap(net->ifname, net, &res_ifname, vnet_hdr, vmuuid); if (rc >= 0) { VIR_FREE(net->ifname); net->ifname = res_ifname; @@ -1500,17 +1498,16 @@ qemudPhysIfaceConnect(virConnectPtr conn if (err) { close(rc); rc = -1; - delMacvtap(net->ifname); + delMacvtap(net); } } } #else (void)conn; (void)net; - (void)linkdev; - (void)brmode; (void)qemuCmdFlags; (void)driver; + (void)vmuuid; qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("No support for macvtap device")); rc = -1; @@ -4130,9 +4127,8 @@ int qemudBuildCommandLine(virConnectPtr goto no_memory; } else if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) { int tapfd = qemudPhysIfaceConnect(conn, driver, net, - net->data.direct.linkdev, - net->data.direct.mode, - qemuCmdFlags); + qemuCmdFlags, + def->uuid); if (tapfd < 0) goto error;

1 0

[libvirt] [PATCH] qemudDomainMigrateFinish2: handle a case of virDomainSaveStatus failure
by Jim Meyering 19 May '10

19 May '10

This is very similar to ones I fixed yesterday. The difference is that I'm adding ATTRIBUTE_RETURN_CHECK, now. Here, it's easy, since the function is private. >From cfce459e9aebae840356e62473f550f358834f30 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Wed, 19 May 2010 17:48:03 +0200 Subject: [PATCH] qemudDomainMigrateFinish2: handle a case of virDomainSaveStatus failure * src/qemu/qemu_driver.c (qemudDomainMigrateFinish2): Don't ignore virDomainSaveStatus failure. * src/conf/domain_conf.h (virDomainSaveStatus): Use ATTRIBUTE_RETURN_CHECK, so this doesn't happen again. --- src/conf/domain_conf.h | 2 +- src/qemu/qemu_driver.c | 5 ++++- 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index fadc8bd..a7206d3 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -1011,7 +1011,7 @@ int virDomainSaveConfig(const char *configDir, virDomainDefPtr def); int virDomainSaveStatus(virCapsPtr caps, const char *statusDir, - virDomainObjPtr obj); + virDomainObjPtr obj) ATTRIBUTE_RETURN_CHECK; typedef void (*virDomainLoadConfigNotify)(virDomainObjPtr dom, int newDomain, diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 65ca117..a519c02 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -10816,7 +10816,10 @@ qemudDomainMigrateFinish2 (virConnectPtr dconn, VIR_DOMAIN_EVENT_SUSPENDED, VIR_DOMAIN_EVENT_SUSPENDED_PAUSED); } - virDomainSaveStatus(driver->caps, driver->stateDir, vm); + if (virDomainSaveStatus(driver->caps, driver->stateDir, vm) < 0) { + VIR_WARN("Failed to save status on vm %s", vm->def->name); + goto endjob; + } } else { qemudShutdownVMDaemon(driver, vm, 0); event = virDomainEventNewFromObj(vm, -- 1.7.1.259.g3aef8

2 1

[libvirt] Problems with pdwtags on Ubuntu 10.04
by Matthias Bolte 19 May '10

19 May '10

The "help avoid accidental remote_protocol.x changes" commit 180d4b2b added a make check rule that tried using pdwtags from the dwarves package to protect against accidental remote_protocol.x changes. I installed dwarves package on Ubuntu 10.04 and make check fails for me now. The temporary file remote_protocol-structs-t is empty for me. It seems that pdwtags doesn't output the expected format for the embedded perl script. pdwtags output doesn't contain /* DD */ comments between the structs. A snippet from the pdwtags output looks like this: struct remote_nonnull_network { remote_nonnull_string name; /* 0 8 */ remote_uuid uuid; /* 8 16 */ /* size: 24, cachelines: 1 */ /* last cacheline: 24 bytes */ }; typedef struct remote_nonnull_network remote_nonnull_network; struct remote_nonnull_nwfilter { remote_nonnull_string name; /* 0 8 */ remote_uuid uuid; /* 8 16 */ /* size: 24, cachelines: 1 */ /* last cacheline: 24 bytes */ }; typedef struct remote_nonnull_nwfilter remote_nonnull_nwfilter; If i run pdwtags with the --verbose flag then the output looks like this: /* <44e> remote/remote_protocol.h:71 */ typedef struct remote_nonnull_domain remote_nonnull_domain; /* <459> remote/remote_protocol.h:73 */ struct remote_nonnull_network { remote_nonnull_string name; /* 0 8 */ remote_uuid uuid; /* 8 16 */ /* size: 24, cachelines: 1 */ /* last cacheline: 24 bytes */ }; /* <482> remote/remote_protocol.h:77 */ typedef struct remote_nonnull_network remote_nonnull_network; /* <48d> remote/remote_protocol.h:79 */ struct remote_nonnull_nwfilter { remote_nonnull_string name; /* 0 8 */ remote_uuid uuid; /* 8 16 */ /* size: 24, cachelines: 1 */ /* last cacheline: 24 bytes */ }; /* <4b6> remote/remote_protocol.h:83 */ typedef struct remote_nonnull_nwfilter remote_nonnull_nwfilter; Now there are "markers" that can be used for splitting, but they still differ from the expected format. The attached patch fixes this issue for me on Ubuntu, but I doubt that this can be the general solution. Matthias

3 5

[libvirt] Java Bindings up to 0.8.1: Need Help Testing
by Bryan Kearney 19 May '10

19 May '10

I have moved the bindings up to 0.8.1. It is mostly cut and paste code, but the test driver does not support some of the new features so I would appreciate if someone could bang on them a bit. Specifically, I would like to see someone try out: Snapshots Streams (Callbacks in particular) Secrets I have put an SRPM out at [1] and a compiled jar at [2]. You can always clone the repo at [3] and build it from there. Thanks! -- bk [1] http://bkearney.fedorapeople.org/libvirt-java-0.4.5-ALPHA.fc12.src.rpm [2] http://bkearney.fedorapeople.org/libvirt-0.4.5.ALPHA.jar [3] http://www.libvirt.org/git/?p=libvirt-java.git;a=summary

2 1

[libvirt] [PATCH] Fix cgroup setup code to cope with root squashing NFS
by Daniel P. Berrange 19 May '10

19 May '10

When a disk is on a root squashed NFS server, it may not be possible to stat() the disk file in virCgroupAllowDevice. The virStorageFileGetMeta method may also fail to extract the parent backing store. Both of these errors have to be ignored to avoid breaking NFS deployments * src/qemu/qemu_driver.c: Ignore errors in cgroup setup to keep root squash NFS happy --- src/qemu/qemu_driver.c | 12 ++++++++++-- 1 files changed, 10 insertions(+), 2 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index c537ed1..b6e9506 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -3385,6 +3385,8 @@ static int qemuSetupDiskCgroup(virCgroupPtr cgroup, /* Get this for non-block devices */ if (rc == -EINVAL) { VIR_DEBUG("Ignoring EINVAL for %s", path); + } else if (rc == -EACCES) { /* Get this for root squash NFS */ + VIR_DEBUG("Ignoring EACCES for %s", path); } else { virReportSystemError(-rc, _("Unable to allow device %s for %s"), @@ -3398,13 +3400,15 @@ static int qemuSetupDiskCgroup(virCgroupPtr cgroup, memset(&meta, 0, sizeof(meta)); rc = virStorageFileGetMetadata(path, &meta); + if (rc < 0) + VIR_WARN("Unable to lookup parent image for %s", path); if (path != disk->src) VIR_FREE(path); path = NULL; if (rc < 0) - goto cleanup; + break; /* Treating as non fatal */ path = meta.backingStore; } while (path != NULL); @@ -3433,6 +3437,8 @@ static int qemuTeardownDiskCgroup(virCgroupPtr cgroup, /* Get this for non-block devices */ if (rc == -EINVAL) { VIR_DEBUG("Ignoring EINVAL for %s", path); + } else if (rc == -EACCES) { /* Get this for root squash NFS */ + VIR_DEBUG("Ignoring EACCES for %s", path); } else { virReportSystemError(-rc, _("Unable to deny device %s for %s"), @@ -3446,13 +3452,15 @@ static int qemuTeardownDiskCgroup(virCgroupPtr cgroup, memset(&meta, 0, sizeof(meta)); rc = virStorageFileGetMetadata(path, &meta); + if (rc < 0) + VIR_WARN("Unable to lookup parent image for %s", path); if (path != disk->src) VIR_FREE(path); path = NULL; if (rc < 0) - goto cleanup; + break; /* Treating as non fatal */ path = meta.backingStore; } while (path != NULL); -- 1.6.6.1

2 1

[libvirt] just pushed 2 more ACK'd patches from yesterday
by Jim Meyering 19 May '10

19 May '10

commit dcf30d9c25daabe722c5298f0a90d562b7e9f7d7 Author: Jim Meyering <meyering(a)redhat.com> Date: Tue May 18 07:53:31 2010 +0200 initialize "meta" in virStorageFileGetMetadata, not in each caller Do not require each caller of virStorageFileGetMetadata and virStorageFileGetMetadataFromFD to first clear the storage of the "meta" buffer. Instead, initialize that storage in virStorageFileGetMetadataFromFD. * src/util/storage_file.c (virStorageFileGetMetadataFromFD): Clear "meta" here, not before each of the following callers. * src/qemu/qemu_driver.c (qemuSetupDiskCgroup): Don't clear "meta" here. (qemuTeardownDiskCgroup): Likewise. * src/qemu/qemu_security_dac.c (qemuSecurityDACSetSecurityImageLabel): Likewise. * src/security/security_selinux.c (SELinuxSetSecurityImageLabel): Likewise. * src/security/virt-aa-helper.c (get_files): Likewise. commit e638a2461d082e01df83b08792801e6784f30b9a Author: Jim Meyering <meyering(a)redhat.com> Date: Mon May 17 22:50:21 2010 +0200 (qemu*DiskCgroup): avoid dead code * src/qemu/qemu_driver.c (qemuTeardownDiskCgroup): Remove bogus empty-body while-loop. (qemuSetupDiskCgroup): Likewise.

1 0

[libvirt] [PATCH 1/5] maint: don't mark VIR_WARN or VIR_WARN0 diagnostics for translation
by Jim Meyering 19 May '10

19 May '10

From: Jim Meyering <meyering(a)redhat.com> Approximately 60 messages were marked. Since these diagnostics are intended solely for developers and maintainers, encouraging translation is deemed to be counterproductive: http://thread.gmane.org/gmane.comp.emulators.libvirt/25050/focus=25052 Run this command: git grep -l VIR_WARN|xargs perl -pi -e \ 's/(VIR_WARN0?)\s*$_\((".*?")$/$1($2/' --- daemon/libvirtd.c | 6 +++--- src/lxc/lxc_container.c | 2 +- src/lxc/lxc_controller.c | 2 +- src/network/bridge_driver.c | 8 ++++---- src/qemu/qemu_conf.c | 12 ++++++------ src/qemu/qemu_driver.c | 32 ++++++++++++++++---------------- src/qemu/qemu_monitor_text.c | 22 +++++++++++----------- src/uml/uml_driver.c | 12 ++++++------ src/util/logging.c | 8 ++++---- src/util/pci.c | 8 ++++---- src/xen/proxy_internal.c | 6 +++--- 11 files changed, 59 insertions(+), 59 deletions(-) diff --git a/daemon/libvirtd.c b/daemon/libvirtd.c index 4533f40..cc05953 100644 --- a/daemon/libvirtd.c +++ b/daemon/libvirtd.c @@ -384,14 +384,14 @@ qemudDispatchSignalEvent(int watch ATTRIBUTE_UNUSED, virHookCall(VIR_HOOK_DRIVER_DAEMON, "-", VIR_HOOK_DAEMON_OP_RELOAD, SIGHUP, "SIGHUP", NULL); if (virStateReload() < 0) - VIR_WARN0(_("Error while reloading drivers")); + VIR_WARN0("Error while reloading drivers"); break; case SIGINT: case SIGQUIT: case SIGTERM: - VIR_WARN(_("Shutting down on signal %d"), siginfo.si_signo); + VIR_WARN("Shutting down on signal %d", siginfo.si_signo); server->quitEventThread = 1; break; @@ -2761,7 +2761,7 @@ remoteReadConfigFile (struct qemud_server *server, const char *filename) GET_CONF_STR (conf, filename, unix_sock_group); if (unix_sock_group) { if (!server->privileged) { - VIR_WARN0(_("Cannot set group when not running as root")); + VIR_WARN0("Cannot set group when not running as root"); } else { int ret; struct group grpdata, *grp; diff --git a/src/lxc/lxc_container.c b/src/lxc/lxc_container.c index 706c796..018f4d5 100644 --- a/src/lxc/lxc_container.c +++ b/src/lxc/lxc_container.c @@ -716,7 +716,7 @@ static int lxcContainerDropCapabilities(void) * be unmasked - they can never escape the bounding set. */ #else - VIR_WARN0(_("libcap-ng support not compiled in, unable to clear capabilities")); + VIR_WARN0("libcap-ng support not compiled in, unable to clear capabilities"); #endif return 0; } diff --git a/src/lxc/lxc_controller.c b/src/lxc/lxc_controller.c index c120b8e..1732780 100644 --- a/src/lxc/lxc_controller.c +++ b/src/lxc/lxc_controller.c @@ -259,7 +259,7 @@ static int lxcControllerClearCapabilities(void) return -1; } #else - VIR_WARN0(_("libcap-ng support not compiled in, unable to clear capabilities")); + VIR_WARN0("libcap-ng support not compiled in, unable to clear capabilities"); #endif return 0; } diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c index 8432bbc..3b9b4f4 100644 --- a/src/network/bridge_driver.c +++ b/src/network/bridge_driver.c @@ -995,14 +995,14 @@ static int networkStartNetworkDaemon(struct network_driver *driver, err_delbr1: if ((err = brSetInterfaceUp(driver->brctl, network->def->bridge, 0))) { char ebuf[1024]; - VIR_WARN(_("Failed to bring down bridge '%s' : %s"), + VIR_WARN("Failed to bring down bridge '%s' : %s", network->def->bridge, virStrerror(err, ebuf, sizeof ebuf)); } err_delbr: if ((err = brDeleteBridge(driver->brctl, network->def->bridge))) { char ebuf[1024]; - VIR_WARN(_("Failed to delete bridge '%s' : %s"), + VIR_WARN("Failed to delete bridge '%s' : %s", network->def->bridge, virStrerror(err, ebuf, sizeof ebuf)); } @@ -1035,12 +1035,12 @@ static int networkShutdownNetworkDaemon(struct network_driver *driver, char ebuf[1024]; if ((err = brSetInterfaceUp(driver->brctl, network->def->bridge, 0))) { - VIR_WARN(_("Failed to bring down bridge '%s' : %s"), + VIR_WARN("Failed to bring down bridge '%s' : %s", network->def->bridge, virStrerror(err, ebuf, sizeof ebuf)); } if ((err = brDeleteBridge(driver->brctl, network->def->bridge))) { - VIR_WARN(_("Failed to delete bridge '%s' : %s"), + VIR_WARN("Failed to delete bridge '%s' : %s", network->def->bridge, virStrerror(err, ebuf, sizeof ebuf)); } diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c index 5fa8c0a..3e334dc 100644 --- a/src/qemu/qemu_conf.c +++ b/src/qemu/qemu_conf.c @@ -523,7 +523,7 @@ rewait: * as there's really no need to throw an error if we did * actually read a valid version number above */ if (WEXITSTATUS(status) != 0) { - VIR_WARN(_("Unexpected exit status '%d', qemu probably failed"), + VIR_WARN("Unexpected exit status '%d', qemu probably failed", WEXITSTATUS(status)); } @@ -767,7 +767,7 @@ rewait: * as there's really no need to throw an error if we did * actually read a valid version number above */ if (WEXITSTATUS(status) != 0) { - VIR_WARN(_("Unexpected exit status '%d', qemu probably failed"), + VIR_WARN("Unexpected exit status '%d', qemu probably failed", WEXITSTATUS(status)); } @@ -847,7 +847,7 @@ qemudCapsInitGuest(virCapsPtr caps, binary_mtime = st.st_mtime; } else { char ebuf[1024]; - VIR_WARN(_("Failed to stat %s, most peculiar : %s"), + VIR_WARN("Failed to stat %s, most peculiar : %s", binary, virStrerror(errno, ebuf, sizeof(ebuf))); binary_mtime = 0; } @@ -932,7 +932,7 @@ qemudCapsInitGuest(virCapsPtr caps, binary_mtime = st.st_mtime; } else { char ebuf[1024]; - VIR_WARN(_("Failed to stat %s, most peculiar : %s"), + VIR_WARN("Failed to stat %s, most peculiar : %s", binary, virStrerror(errno, ebuf, sizeof(ebuf))); binary_mtime = 0; } @@ -1403,7 +1403,7 @@ rewait: * as there's really no need to throw an error if we did * actually read a valid version number above */ if (WEXITSTATUS(status) != 0) { - VIR_WARN(_("Unexpected exit status '%d', qemu probably failed"), + VIR_WARN("Unexpected exit status '%d', qemu probably failed", WEXITSTATUS(status)); } @@ -6147,7 +6147,7 @@ virDomainDefPtr qemuParseCommandLine(virCapsPtr caps, } else if (STREQ(arg, "-S")) { /* ignore, always added by libvirt */ } else { - VIR_WARN(_("unknown QEMU argument '%s' during conversion"), arg); + VIR_WARN("unknown QEMU argument '%s' during conversion", arg); #if 0 qemuReportError(VIR_ERR_INTERNAL_ERROR, _("unknown argument '%s'"), arg); diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 609fabe..c103592 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -689,12 +689,12 @@ qemudRemoveDomainStatus(struct qemud_driver *driver, } if (unlink(file) < 0 && errno != ENOENT && errno != ENOTDIR) - VIR_WARN(_("Failed to remove domain XML for %s: %s"), + VIR_WARN("Failed to remove domain XML for %s: %s", vm->def->name, virStrerror(errno, ebuf, sizeof(ebuf))); VIR_FREE(file); if (virFileDeletePid(driver->stateDir, vm->def->name) != 0) - VIR_WARN(_("Failed to remove PID file for %s: %s"), + VIR_WARN("Failed to remove PID file for %s: %s", vm->def->name, virStrerror(errno, ebuf, sizeof(ebuf))); @@ -2108,7 +2108,7 @@ cleanup: closelog: if (close(logfd) < 0) { char ebuf[4096]; - VIR_WARN(_("Unable to close logfile: %s"), + VIR_WARN("Unable to close logfile: %s", virStrerror(errno, ebuf, sizeof ebuf)); } @@ -3441,29 +3441,29 @@ static int qemudStartVMDaemon(virConnectPtr conn, tmp = progenv; while (*tmp) { if (safewrite(logfile, *tmp, strlen(*tmp)) < 0) - VIR_WARN(_("Unable to write envv to logfile: %s"), + VIR_WARN("Unable to write envv to logfile: %s", virStrerror(errno, ebuf, sizeof ebuf)); if (safewrite(logfile, " ", 1) < 0) - VIR_WARN(_("Unable to write envv to logfile: %s"), + VIR_WARN("Unable to write envv to logfile: %s", virStrerror(errno, ebuf, sizeof ebuf)); tmp++; } tmp = argv; while (*tmp) { if (safewrite(logfile, *tmp, strlen(*tmp)) < 0) - VIR_WARN(_("Unable to write argv to logfile: %s"), + VIR_WARN("Unable to write argv to logfile: %s", virStrerror(errno, ebuf, sizeof ebuf)); if (safewrite(logfile, " ", 1) < 0) - VIR_WARN(_("Unable to write argv to logfile: %s"), + VIR_WARN("Unable to write argv to logfile: %s", virStrerror(errno, ebuf, sizeof ebuf)); tmp++; } if (safewrite(logfile, "\n", 1) < 0) - VIR_WARN(_("Unable to write argv to logfile: %s"), + VIR_WARN("Unable to write argv to logfile: %s", virStrerror(errno, ebuf, sizeof ebuf)); if ((pos = lseek(logfile, 0, SEEK_END)) < 0) - VIR_WARN(_("Unable to seek to end of logfile: %s"), + VIR_WARN("Unable to seek to end of logfile: %s", virStrerror(errno, ebuf, sizeof ebuf)); for (i = 0 ; i < ntapfds ; i++) @@ -6944,7 +6944,7 @@ static int qemudDomainAttachPciDiskDevice(struct qemud_driver *driver, if (ret == 0) { ret = qemuMonitorAddDevice(priv->mon, devstr); if (ret < 0) { - VIR_WARN(_("qemuMonitorAddDevice failed on %s (%s)"), + VIR_WARN("qemuMonitorAddDevice failed on %s (%s)", drivestr, devstr); /* XXX should call 'drive_del' on error but this does not exist yet */ @@ -7174,7 +7174,7 @@ static int qemudDomainAttachSCSIDisk(struct qemud_driver *driver, if (ret == 0) { ret = qemuMonitorAddDevice(priv->mon, devstr); if (ret < 0) { - VIR_WARN(_("qemuMonitorAddDevice failed on %s (%s)"), + VIR_WARN("qemuMonitorAddDevice failed on %s (%s)", drivestr, devstr); /* XXX should call 'drive_del' on error but this does not exist yet */ @@ -7267,7 +7267,7 @@ static int qemudDomainAttachUsbMassstorageDevice(struct qemud_driver *driver, if (ret == 0) { ret = qemuMonitorAddDevice(priv->mon, devstr); if (ret < 0) { - VIR_WARN(_("qemuMonitorAddDevice failed on %s (%s)"), + VIR_WARN("qemuMonitorAddDevice failed on %s (%s)", drivestr, devstr); /* XXX should call 'drive_del' on error but this does not exist yet */ @@ -7491,12 +7491,12 @@ try_remove: goto no_memory; qemuDomainObjEnterMonitorWithDriver(driver, vm); if (qemuMonitorRemoveNetdev(priv->mon, netdev_name) < 0) - VIR_WARN(_("Failed to remove network backend for netdev %s"), + VIR_WARN("Failed to remove network backend for netdev %s", netdev_name); qemuDomainObjExitMonitorWithDriver(driver, vm); VIR_FREE(netdev_name); } else { - VIR_WARN0(_("Unable to remove network backend")); + VIR_WARN0("Unable to remove network backend"); } } else { char *hostnet_name; @@ -7504,7 +7504,7 @@ try_remove: goto no_memory; qemuDomainObjEnterMonitorWithDriver(driver, vm); if (qemuMonitorRemoveHostNetwork(priv->mon, vlan, hostnet_name) < 0) - VIR_WARN(_("Failed to remove network backend for vlan %d, net %s"), + VIR_WARN("Failed to remove network backend for vlan %d, net %s", vlan, hostnet_name); qemuDomainObjExitMonitorWithDriver(driver, vm); VIR_FREE(hostnet_name); @@ -7518,7 +7518,7 @@ try_tapfd_close: if (tapfd_name) { qemuDomainObjEnterMonitorWithDriver(driver, vm); if (qemuMonitorCloseFileHandle(priv->mon, tapfd_name) < 0) - VIR_WARN(_("Failed to close tapfd with '%s'"), tapfd_name); + VIR_WARN("Failed to close tapfd with '%s'", tapfd_name); qemuDomainObjExitMonitorWithDriver(driver, vm); } diff --git a/src/qemu/qemu_monitor_text.c b/src/qemu/qemu_monitor_text.c index ec3d69d..3df078a 100644 --- a/src/qemu/qemu_monitor_text.c +++ b/src/qemu/qemu_monitor_text.c @@ -1445,42 +1445,42 @@ qemuMonitorTextParsePciAddReply(qemuMonitorPtr mon ATTRIBUTE_UNUSED, s += strlen("domain "); if (virStrToLong_ui(s, &e, 10, &addr->domain) == -1) { - VIR_WARN(_("Unable to parse domain number '%s'"), s); + VIR_WARN("Unable to parse domain number '%s'", s); return -1; } if (!STRPREFIX(e, ", ")) { - VIR_WARN(_("Expected ', ' parsing pci_add reply '%s'"), s); + VIR_WARN("Expected ', ' parsing pci_add reply '%s'", s); return -1; } s = e + 2; } if (!STRPREFIX(s, "bus ")) { - VIR_WARN(_("Expected 'bus ' parsing pci_add reply '%s'"), s); + VIR_WARN("Expected 'bus ' parsing pci_add reply '%s'", s); return -1; } s += strlen("bus "); if (virStrToLong_ui(s, &e, 10, &addr->bus) == -1) { - VIR_WARN(_("Unable to parse bus number '%s'"), s); + VIR_WARN("Unable to parse bus number '%s'", s); return -1; } if (!STRPREFIX(e, ", ")) { - VIR_WARN(_("Expected ', ' parsing pci_add reply '%s'"), s); + VIR_WARN("Expected ', ' parsing pci_add reply '%s'", s); return -1; } s = e + 2; if (!STRPREFIX(s, "slot ")) { - VIR_WARN(_("Expected 'slot ' parsing pci_add reply '%s'"), s); + VIR_WARN("Expected 'slot ' parsing pci_add reply '%s'", s); return -1; } s += strlen("slot "); if (virStrToLong_ui(s, &e, 10, &addr->slot) == -1) { - VIR_WARN(_("Unable to parse slot number '%s'"), s); + VIR_WARN("Unable to parse slot number '%s'", s); return -1; } @@ -2029,25 +2029,25 @@ qemudParseDriveAddReply(const char *reply, s += strlen("bus "); if (virStrToLong_ui(s, &e, 10, &addr->bus) == -1) { - VIR_WARN(_("Unable to parse bus '%s'"), s); + VIR_WARN("Unable to parse bus '%s'", s); return -1; } if (!STRPREFIX(e, ", ")) { - VIR_WARN(_("Expected ', ' parsing drive_add reply '%s'"), s); + VIR_WARN("Expected ', ' parsing drive_add reply '%s'", s); return -1; } s = e + 2; } if (!STRPREFIX(s, "unit ")) { - VIR_WARN(_("Expected 'unit ' parsing drive_add reply '%s'"), s); + VIR_WARN("Expected 'unit ' parsing drive_add reply '%s'", s); return -1; } s += strlen("bus "); if (virStrToLong_ui(s, &e, 10, &addr->unit) == -1) { - VIR_WARN(_("Unable to parse unit number '%s'"), s); + VIR_WARN("Unable to parse unit number '%s'", s); return -1; } diff --git a/src/uml/uml_driver.c b/src/uml/uml_driver.c index ffb87c8..9a9cdc2 100644 --- a/src/uml/uml_driver.c +++ b/src/uml/uml_driver.c @@ -881,25 +881,25 @@ static int umlStartVMDaemon(virConnectPtr conn, tmp = progenv; while (*tmp) { if (safewrite(logfd, *tmp, strlen(*tmp)) < 0) - VIR_WARN(_("Unable to write envv to logfile: %s"), + VIR_WARN("Unable to write envv to logfile: %s", virStrerror(errno, ebuf, sizeof ebuf)); if (safewrite(logfd, " ", 1) < 0) - VIR_WARN(_("Unable to write envv to logfile: %s"), + VIR_WARN("Unable to write envv to logfile: %s", virStrerror(errno, ebuf, sizeof ebuf)); tmp++; } tmp = argv; while (*tmp) { if (safewrite(logfd, *tmp, strlen(*tmp)) < 0) - VIR_WARN(_("Unable to write argv to logfile: %s"), + VIR_WARN("Unable to write argv to logfile: %s", virStrerror(errno, ebuf, sizeof ebuf)); if (safewrite(logfd, " ", 1) < 0) - VIR_WARN(_("Unable to write argv to logfile: %s"), + VIR_WARN("Unable to write argv to logfile: %s", virStrerror(errno, ebuf, sizeof ebuf)); tmp++; } if (safewrite(logfd, "\n", 1) < 0) - VIR_WARN(_("Unable to write argv to logfile: %s"), + VIR_WARN("Unable to write argv to logfile: %s", virStrerror(errno, ebuf, sizeof ebuf)); priv->monitor = -1; @@ -947,7 +947,7 @@ static void umlShutdownVMDaemon(virConnectPtr conn ATTRIBUTE_UNUSED, priv->monitor = -1; if ((ret = waitpid(vm->pid, NULL, 0)) != vm->pid) { - VIR_WARN(_("Got unexpected pid %d != %d"), + VIR_WARN("Got unexpected pid %d != %d", ret, vm->pid); } diff --git a/src/util/logging.c b/src/util/logging.c index 6bc2ccf..248c47e 100644 --- a/src/util/logging.c +++ b/src/util/logging.c @@ -330,7 +330,7 @@ error: */ int virLogSetDefaultPriority(int priority) { if ((priority < VIR_LOG_DEBUG) || (priority > VIR_LOG_ERROR)) { - VIR_WARN0(_("Ignoring invalid log level setting.")); + VIR_WARN0("Ignoring invalid log level setting."); return(-1); } if (!virLogInitialized) @@ -781,7 +781,7 @@ int virLogParseOutputs(const char *outputs) { ret = count; cleanup: if (ret == -1) - VIR_WARN0(_("Ignoring invalid log output setting.")); + VIR_WARN0("Ignoring invalid log output setting."); return(ret); } @@ -837,7 +837,7 @@ int virLogParseFilters(const char *filters) { ret = count; cleanup: if (ret == -1) - VIR_WARN0(_("Ignoring invalid log filter setting.")); + VIR_WARN0("Ignoring invalid log filter setting."); return(ret); } @@ -959,7 +959,7 @@ int virLogParseDefaultPriority(const char *priority) { else if (STREQ(priority, "4") || STREQ(priority, "error")) ret = virLogSetDefaultPriority(VIR_LOG_ERROR); else - VIR_WARN0(_("Ignoring invalid log level setting")); + VIR_WARN0("Ignoring invalid log level setting"); return ret; } diff --git a/src/util/pci.c b/src/util/pci.c index a1bd8e3..b93f28c 100644 --- a/src/util/pci.c +++ b/src/util/pci.c @@ -173,7 +173,7 @@ pciOpenConfig(pciDevice *dev) fd = open(dev->path, O_RDWR); if (fd < 0) { char ebuf[1024]; - VIR_WARN(_("Failed to open config space file '%s': %s"), + VIR_WARN("Failed to open config space file '%s': %s", dev->path, virStrerror(errno, ebuf, sizeof(ebuf))); return -1; } @@ -193,7 +193,7 @@ pciRead(pciDevice *dev, unsigned pos, uint8_t *buf, unsigned buflen) if (lseek(dev->fd, pos, SEEK_SET) != pos || saferead(dev->fd, buf, buflen) != buflen) { char ebuf[1024]; - VIR_WARN(_("Failed to read from '%s' : %s"), dev->path, + VIR_WARN("Failed to read from '%s' : %s", dev->path, virStrerror(errno, ebuf, sizeof(ebuf))); return -1; } @@ -233,7 +233,7 @@ pciWrite(pciDevice *dev, unsigned pos, uint8_t *buf, unsigned buflen) if (lseek(dev->fd, pos, SEEK_SET) != pos || safewrite(dev->fd, buf, buflen) != buflen) { char ebuf[1024]; - VIR_WARN(_("Failed to write to '%s' : %s"), dev->path, + VIR_WARN("Failed to write to '%s' : %s", dev->path, virStrerror(errno, ebuf, sizeof(ebuf))); return -1; } @@ -730,7 +730,7 @@ recheck: if (virRun(backprobe, NULL) < 0 && virRun(stubprobe, NULL) < 0) { char ebuf[1024]; - VIR_WARN(_("failed to load pci-stub or pciback drivers: %s"), + VIR_WARN("failed to load pci-stub or pciback drivers: %s", virStrerror(errno, ebuf, sizeof ebuf)); return 0; } diff --git a/src/xen/proxy_internal.c b/src/xen/proxy_internal.c index 1efdb83..db209d1 100644 --- a/src/xen/proxy_internal.c +++ b/src/xen/proxy_internal.c @@ -240,7 +240,7 @@ virProxyCloseSocket(xenUnifiedPrivatePtr priv) { ret = close(priv->proxy); if (ret != 0) - VIR_WARN(_("Failed to close socket %d"), priv->proxy); + VIR_WARN("Failed to close socket %d", priv->proxy); else VIR_DEBUG("Closed socket %d", priv->proxy); priv->proxy = -1; @@ -297,7 +297,7 @@ virProxyWriteClientSocket(int fd, const char *data, int len) { ret = safewrite(fd, data, len); if (ret < 0) { - VIR_WARN(_("Failed to write to socket %d"), fd); + VIR_WARN("Failed to write to socket %d", fd); return(-1); } VIR_DEBUG("wrote %d bytes to socket %d", @@ -452,7 +452,7 @@ retry: goto error; } if (res->serial != serial) { - VIR_WARN(_("got asynchronous packet number %d"), res->serial); + VIR_WARN("got asynchronous packet number %d", res->serial); goto retry; } -- 1.7.1.259.g3aef8

2 10

[libvirt] VIR_WARN and VIR_WARN0 normalization
by Jim Meyering 19 May '10

19 May '10

Here are 5 patches, mostly mechanical, to straighten out the VIR_WARN and VIR_WARN0 situation. 1: mechanically remove all _(...) uses in VIR_WARN*. 2: remove the few remaining _(...) uses manually 3: add syntax-check rule to enforce the policy 4 clean up bogosity I noticed along the way, first automatically, 5 ... then manually b/cfg.mk | 19 +++++++++++++------ b/daemon/libvirtd.c | 6 +++--- b/po/POTFILES.in | 2 -- b/src/lxc/lxc_container.c | 2 +- b/src/lxc/lxc_controller.c | 2 +- b/src/network/bridge_driver.c | 8 ++++---- b/src/phyp/phyp_driver.c | 12 ++++++------ b/src/qemu/qemu_conf.c | 12 ++++++------ b/src/qemu/qemu_driver.c | 32 ++++++++++++++++---------------- b/src/qemu/qemu_monitor_text.c | 22 +++++++++++----------- b/src/uml/uml_driver.c | 12 ++++++------ b/src/util/logging.c | 8 ++++---- b/src/util/pci.c | 8 ++++---- b/src/util/uuid.c | 6 +++--- b/src/xen/proxy_internal.c | 6 +++--- src/phyp/phyp_driver.c | 12 ++++-------- 16 files changed, 85 insertions(+), 84 deletions(-)

1 0

[libvirt] [PATCH v2 REPOST 0/8]: Add arbitrary qemu command-line and monitor commands
by Chris Lalancette 19 May '10

19 May '10

As we discussed previously, here is the patch series to add the ability to specify arbitrary qemu command-line parameters and environment variables, and also give arbitrary monitor commands to a guest. Because these extra arguments have a good shot at confusing libvirt, the use of them is not supported, but left available for advanced users and developers. They are also in a separate library and have a separate on-the-wire protocol. There is one bug left that I have not yet been able to fix. Because of the complicated way that virsh parses command-line arguments, it is not possible to pass through spaces and quotes when using the qemu-monitor-command. Unfortunately, the qemu monitor commands (and in particular when using QMP) depend heavily on quoting and spacing, so using virsh to send through command-lines is difficult. I'll have to think about how to better resolve this issue, but it should not hold up the rest of the series. Thanks to Dan Berrange and Eric Blake for their reviews already, and to DV for the Relax NG schema changes. Changes since v1 are listed in the individual patches.

1 8

[libvirt] VIR_WARN and VIR_WARN0: many diags were not marked for translation
by Jim Meyering 19 May '10

19 May '10

I noticed some VIR_WARN* uses with unmarked (for translation) strings. It turns out there are more than 50: $ g grep -E 'VIR_WARN0?$".*"[,)]'|wc -l 128 Here's a sample: src/phyp/phyp_driver.c: VIR_WARN0("Unable to stat local file."); src/phyp/phyp_driver.c: VIR_WARN0("Unable to open local file."); src/qemu/qemu_conf.c: VIR_WARN0("Failed to get host CPU"); Affected files: $ g grep -l -E 'VIR_WARN0?\(".*"$' daemon/remote.c src/esx/esx_driver.c src/lxc/lxc_conf.c src/lxc/lxc_controller.c src/phyp/phyp_driver.c src/qemu/qemu_conf.c src/qemu/qemu_driver.c src/qemu/qemu_monitor_json.c src/remote/remote_driver.c src/storage/storage_backend_logical.c src/uml/uml_conf.c src/uml/uml_driver.c src/util/pci.c src/util/util.c src/xen/proxy_internal.c This change ensures that no new ones will sneak in: diff --git a/cfg.mk b/cfg.mk index 96d6953..49300a0 100644 --- a/cfg.mk +++ b/cfg.mk @@ -358,6 +358,8 @@ msg_gen_function += virXendError msg_gen_function += xenapiSessionErrorHandler msg_gen_function += xenUnifiedError msg_gen_function += xenXMError +msg_gen_function += VIR_WARN +msg_gen_function += VIR_WARN0 # Uncomment the following and run "make syntax-check" to see diagnostics # that are not yet marked for translation, but that need to be rewritten Running these commands fixes the vast majority: git grep -l -E 'VIR_WARN0 *$".*?"$'|xargs perl -pi -e \ 's/(VIR_WARN0\s*)$(".*")$/$1(_($2))/' git grep -l -E 'VIR_WARN *\(".*?",'|xargs perl -pi -e \ 's/(VIR_WARN\s*)\((".*"),/$1(_($2),/' Addressing the remaining problems showed some abuses (e.g., VIR_WARN(_("%s"), "untranslated string") that should be VIR_WARN(_("untranslated string")) ) Finally, since the above introduced translatable strings into three files that previously had none, I have to add them to po/POTFILES.in (which I also sorted): diff --git a/po/POTFILES.in b/po/POTFILES.in index 88218bd..3346654 100644 --- a/po/POTFILES.in +++ b/po/POTFILES.in @@ -1,4 +1,5 @@ daemon/dispatch.c +daemon/event.c daemon/libvirtd.c daemon/remote.c daemon/stream.c @@ -18,6 +19,7 @@ src/cpu/cpu_generic.c src/cpu/cpu_map.c src/cpu/cpu_x86.c src/datatypes.c +src/driver.c src/esx/esx_driver.c src/esx/esx_util.c src/esx/esx_vi.c @@ -27,6 +29,7 @@ src/esx/esx_vmx.c src/interface/netcf_driver.c src/internal.h src/libvirt.c +src/lxc/lxc_conf.c src/lxc/lxc_container.c src/lxc/lxc_controller.c src/lxc/lxc_driver.c @@ -53,8 +56,8 @@ src/qemu/qemu_monitor_text.c src/qemu/qemu_security_dac.c src/remote/remote_driver.c src/secret/secret_driver.c -src/security/security_driver.c src/security/security_apparmor.c +src/security/security_driver.c src/security/security_selinux.c src/security/virt-aa-helper.c src/storage/storage_backend.c @@ -89,10 +92,10 @@ src/util/xml.c src/vbox/vbox_driver.c src/vbox/vbox_tmpl.c src/xen/proxy_internal.c -src/xen/xend_internal.c src/xen/xen_driver.c src/xen/xen_hypervisor.c src/xen/xen_inotify.c +src/xen/xend_internal.c src/xen/xm_internal.c src/xen/xs_internal.c src/xenapi/xenapi_driver.c Here are the three separate changes: - the first is 100% automatically generated, so probably not worth much review effort - the 2nd was all manual, so would benefit from a 2nd pair of eyes - the 3rd is tiny and trivial >From ca5fc870b68d09fdd14144ce67a4c0e1add45a34 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Tue, 18 May 2010 16:12:41 +0200 Subject: [PATCH 1/3] maint: mark VIR_WARN and VIR_WARN0 diagnostics for translation Running these commands fixes the vast majority: git grep -l -E 'VIR_WARN0 *$".*?"$'|xargs perl -pi -e \ 's/(VIR_WARN0\s*)$(".*")$/$1(_($2))/' git grep -l -E 'VIR_WARN *\(".*?",'|xargs perl -pi -e \ 's/(VIR_WARN\s*)\((".*"),/$1(_($2),/' --- daemon/event.c | 8 ++-- daemon/remote.c | 4 +- daemon/stream.c | 4 +- src/conf/domain_event.c | 2 +- src/driver.c | 2 +- src/esx/esx_driver.c | 24 +++++----- src/esx/esx_util.c | 2 +- src/esx/esx_vi.c | 18 ++++---- src/esx/esx_vi_types.c | 2 +- src/esx/esx_vmx.c | 6 +- src/lxc/lxc_conf.c | 4 +- src/lxc/lxc_controller.c | 2 +- src/lxc/lxc_driver.c | 2 +- src/nodeinfo.c | 2 +- src/phyp/phyp_driver.c | 24 +++++----- src/qemu/qemu_conf.c | 4 +- src/qemu/qemu_driver.c | 72 ++++++++++++++++---------------- src/qemu/qemu_monitor_json.c | 24 +++++----- src/remote/remote_driver.c | 26 ++++++------ src/security/security_selinux.c | 2 +- src/storage/storage_backend_logical.c | 2 +- src/uml/uml_conf.c | 2 +- src/uml/uml_driver.c | 4 +- src/util/hooks.c | 2 +- src/util/json.c | 2 +- src/util/pci.c | 4 +- src/util/util.c | 2 +- src/xen/proxy_internal.c | 4 +- src/xenapi/xenapi_utils.c | 2 +- 29 files changed, 129 insertions(+), 129 deletions(-) diff --git a/daemon/event.c b/daemon/event.c index 6971409..77ecd5e 100644 --- a/daemon/event.c +++ b/daemon/event.c @@ -147,7 +147,7 @@ void virEventUpdateHandleImpl(int watch, int events) { EVENT_DEBUG("Update handle w=%d e=%d", watch, events); if (watch <= 0) { - VIR_WARN("Ignoring invalid update watch %d", watch); + VIR_WARN(_("Ignoring invalid update watch %d"), watch); return; } @@ -174,7 +174,7 @@ int virEventRemoveHandleImpl(int watch) { EVENT_DEBUG("Remove handle w=%d", watch); if (watch <= 0) { - VIR_WARN("Ignoring invalid remove watch %d", watch); + VIR_WARN(_("Ignoring invalid remove watch %d"), watch); return -1; } @@ -248,7 +248,7 @@ void virEventUpdateTimeoutImpl(int timer, int frequency) { EVENT_DEBUG("Updating timer %d timeout with %d ms freq", timer, frequency); if (timer <= 0) { - VIR_WARN("Ignoring invalid update timer %d", timer); + VIR_WARN(_("Ignoring invalid update timer %d"), timer); return; } @@ -282,7 +282,7 @@ int virEventRemoveTimeoutImpl(int timer) { EVENT_DEBUG("Remove timer %d", timer); if (timer <= 0) { - VIR_WARN("Ignoring invalid remove timer %d", timer); + VIR_WARN(_("Ignoring invalid remove timer %d"), timer); return -1; } diff --git a/daemon/remote.c b/daemon/remote.c index c54565c..307a265 100644 --- a/daemon/remote.c +++ b/daemon/remote.c @@ -337,7 +337,7 @@ static int remoteRelayDomainEventGraphics(virConnectPtr conn ATTRIBUTE_UNUSED, data.subject.subject_len = subject->nidentity; if (VIR_ALLOC_N(data.subject.subject_val, data.subject.subject_len) < 0) { - VIR_WARN0("cannot allocate memory for graphics event subject"); + VIR_WARN0(_("cannot allocate memory for graphics event subject")); return -1; } for (i = 0 ; i < data.subject.subject_len ; i++) { @@ -5296,7 +5296,7 @@ remoteDispatchDomainEventSend (struct qemud_client *client, goto xdr_error; if (!(proc)(&xdr, data)) { - VIR_WARN("Failed to serialize domain event %d", procnr); + VIR_WARN(_("Failed to serialize domain event %d"), procnr); goto xdr_error; } diff --git a/daemon/stream.c b/daemon/stream.c index d64fe73..86c894d 100644 --- a/daemon/stream.c +++ b/daemon/stream.c @@ -77,7 +77,7 @@ remoteStreamEvent(virStreamPtr st, int events, void *opaque) stream = remoteFindClientStream(client, st); if (!stream) { - VIR_WARN("event for client=%p stream st=%p, but missing stream state", client, st); + VIR_WARN(_("event for client=%p stream st=%p, but missing stream state"), client, st); virStreamEventRemoveCallback(st); goto cleanup; } @@ -467,7 +467,7 @@ remoteStreamHandleAbort(struct qemud_client *client, if (msg->hdr.status == REMOTE_ERROR) remoteDispatchFormatError(&rerr, "%s", _("stream aborted at client request")); else { - VIR_WARN("unexpected stream status %d", msg->hdr.status); + VIR_WARN(_("unexpected stream status %d"), msg->hdr.status); remoteDispatchFormatError(&rerr, _("stream aborted with unexpected status %d"), msg->hdr.status); } diff --git a/src/conf/domain_event.c b/src/conf/domain_event.c index e88aafe..0599c94 100644 --- a/src/conf/domain_event.c +++ b/src/conf/domain_event.c @@ -924,7 +924,7 @@ void virDomainEventDispatchDefaultFunc(virConnectPtr conn, break; default: - VIR_WARN("Unexpected event ID %d", event->eventID); + VIR_WARN(_("Unexpected event ID %d"), event->eventID); break; } diff --git a/src/driver.c b/src/driver.c index e6f3aaa..e153e9d 100644 --- a/src/driver.c +++ b/src/driver.c @@ -58,7 +58,7 @@ virDriverLoadModule(const char *name) return NULL; if (access(modfile, R_OK) < 0) { - VIR_WARN("Module %s not accessible", modfile); + VIR_WARN(_("Module %s not accessible"), modfile); goto cleanup; } diff --git a/src/esx/esx_driver.c b/src/esx/esx_driver.c index 8e55fc6..5c83dc4 100644 --- a/src/esx/esx_driver.c +++ b/src/esx/esx_driver.c @@ -122,7 +122,7 @@ esxSupportsLongMode(esxPrivate *priv) break; } else { - VIR_WARN("Unexpected '%s' property", dynamicProperty->name); + VIR_WARN(_("Unexpected '%s' property"), dynamicProperty->name); } } @@ -274,7 +274,7 @@ esxOpen(virConnectPtr conn, virConnectAuthPtr auth, int flags ATTRIBUTE_UNUSED) if (conn->uri->path != NULL && STRNEQ(conn->uri->path, "") && STRNEQ(conn->uri->path, "/")) { - VIR_WARN("Ignoring unexpected path '%s' in URI", conn->uri->path); + VIR_WARN(_("Ignoring unexpected path '%s' in URI"), conn->uri->path); } /* Allocate per-connection private data */ @@ -399,7 +399,7 @@ esxOpen(virConnectPtr conn, virConnectAuthPtr auth, int flags ATTRIBUTE_UNUSED) } if (dynamicProperty->val->boolean == esxVI_Boolean_True) { - VIR_WARN0("The server is in maintenance mode"); + VIR_WARN0(_("The server is in maintenance mode")); } break; @@ -617,7 +617,7 @@ esxSupportsVMotion(esxPrivate *priv) priv->supportsVMotion = dynamicProperty->val->boolean; break; } else { - VIR_WARN("Unexpected '%s' property", dynamicProperty->name); + VIR_WARN(_("Unexpected '%s' property"), dynamicProperty->name); } } @@ -737,7 +737,7 @@ esxGetHostname(virConnectPtr conn) domainName = dynamicProperty->val->string; } else { - VIR_WARN("Unexpected '%s' property", dynamicProperty->name); + VIR_WARN(_("Unexpected '%s' property"), dynamicProperty->name); } } @@ -899,7 +899,7 @@ esxNodeGetInfo(virConnectPtr conn, virNodeInfoPtr nodeinfo) goto failure; } } else { - VIR_WARN("Unexpected '%s' property", dynamicProperty->name); + VIR_WARN(_("Unexpected '%s' property"), dynamicProperty->name); } } @@ -1559,7 +1559,7 @@ esxDomainGetMaxMemory(virDomainPtr domain) break; } else { - VIR_WARN("Unexpected '%s' property", dynamicProperty->name); + VIR_WARN(_("Unexpected '%s' property"), dynamicProperty->name); } } @@ -1765,7 +1765,7 @@ esxDomainGetInfo(virDomainPtr domain, virDomainInfoPtr info) memory_limit *= 1024; /* Scale from megabyte to kilobyte */ } } else { - VIR_WARN("Unexpected '%s' property", dynamicProperty->name); + VIR_WARN(_("Unexpected '%s' property"), dynamicProperty->name); } } @@ -1851,7 +1851,7 @@ esxDomainGetInfo(virDomainPtr domain, virDomainInfoPtr info) } if (priv->usedCpuTimeCounterId < 0) { - VIR_WARN0("Could not find 'used CPU time' performance counter"); + VIR_WARN0(_("Could not find 'used CPU time' performance counter")); } } @@ -2054,7 +2054,7 @@ esxDomainGetMaxVcpus(virDomainPtr domain) priv->maxVcpus = dynamicProperty->val->int32; break; } else { - VIR_WARN("Unexpected '%s' property", dynamicProperty->name); + VIR_WARN(_("Unexpected '%s' property"), dynamicProperty->name); } } @@ -2812,7 +2812,7 @@ esxDomainGetSchedulerParameters(virDomainPtr domain, mask |= 1 << 2; ++i; } else { - VIR_WARN("Unexpected '%s' property", dynamicProperty->name); + VIR_WARN(_("Unexpected '%s' property"), dynamicProperty->name); } } @@ -3188,7 +3188,7 @@ esxNodeGetFreeMemory(virConnectPtr conn) break; } else { - VIR_WARN("Unexpected '%s' property", dynamicProperty->name); + VIR_WARN(_("Unexpected '%s' property"), dynamicProperty->name); } } diff --git a/src/esx/esx_util.c b/src/esx/esx_util.c index 51c9afc..8aa8c98 100644 --- a/src/esx/esx_util.c +++ b/src/esx/esx_util.c @@ -131,7 +131,7 @@ esxUtil_ParseQuery(xmlURIPtr uri, char **transport, char **vCenter, goto failure; } } else { - VIR_WARN("Ignoring unexpected query parameter '%s'", + VIR_WARN(_("Ignoring unexpected query parameter '%s'"), queryParam->name); } } diff --git a/src/esx/esx_vi.c b/src/esx/esx_vi.c index 966ef85..2f41c58 100644 --- a/src/esx/esx_vi.c +++ b/src/esx/esx_vi.c @@ -465,7 +465,7 @@ esxVI_Context_Connect(esxVI_Context *ctx, const char *url, goto failure; } } else { - VIR_WARN("Unexpected '%s' property", dynamicProperty->name); + VIR_WARN(_("Unexpected '%s' property"), dynamicProperty->name); } } @@ -1348,7 +1348,7 @@ esxVI_EnsureSession(esxVI_Context *ctx) break; } else { - VIR_WARN("Unexpected '%s' property", dynamicProperty->name); + VIR_WARN(_("Unexpected '%s' property"), dynamicProperty->name); } } @@ -1567,7 +1567,7 @@ esxVI_LookupNumberOfDomainsByPowerState(esxVI_Context *ctx, numberOfDomains++; } } else { - VIR_WARN("Unexpected '%s' property", dynamicProperty->name); + VIR_WARN(_("Unexpected '%s' property"), dynamicProperty->name); } } } @@ -1868,7 +1868,7 @@ esxVI_LookupResourcePoolByHostSystem break; } else { - VIR_WARN("Unexpected '%s' property", dynamicProperty->name); + VIR_WARN(_("Unexpected '%s' property"), dynamicProperty->name); } } @@ -1902,7 +1902,7 @@ esxVI_LookupResourcePoolByHostSystem break; } else { - VIR_WARN("Unexpected '%s' property", dynamicProperty->name); + VIR_WARN(_("Unexpected '%s' property"), dynamicProperty->name); } } @@ -2277,7 +2277,7 @@ esxVI_LookupDatastoreByName(esxVI_Context *ctx, const char *name, goto cleanup; } } else { - VIR_WARN("Unexpected '%s' property", dynamicProperty->name); + VIR_WARN(_("Unexpected '%s' property"), dynamicProperty->name); } } } @@ -2340,7 +2340,7 @@ int esxVI_LookupTaskInfoByTask(esxVI_Context *ctx, break; } else { - VIR_WARN("Unexpected '%s' property", dynamicProperty->name); + VIR_WARN(_("Unexpected '%s' property"), dynamicProperty->name); } } @@ -2499,7 +2499,7 @@ esxVI_LookupRootSnapshotTreeList break; } else { - VIR_WARN("Unexpected '%s' property", dynamicProperty->name); + VIR_WARN(_("Unexpected '%s' property"), dynamicProperty->name); } } @@ -2560,7 +2560,7 @@ esxVI_LookupCurrentSnapshotTree goto failure; } } else { - VIR_WARN("Unexpected '%s' property", dynamicProperty->name); + VIR_WARN(_("Unexpected '%s' property"), dynamicProperty->name); } } diff --git a/src/esx/esx_vi_types.c b/src/esx/esx_vi_types.c index 7d2c02c..3e41108 100644 --- a/src/esx/esx_vi_types.c +++ b/src/esx/esx_vi_types.c @@ -271,7 +271,7 @@ \ _deserialize \ \ - VIR_WARN("Unexpected '%s' property", childNode->name); \ + VIR_WARN(_("Unexpected '%s' property"), childNode->name); \ } \ \ if (esxVI_##_type##_Validate(*ptrptr) < 0) { \ diff --git a/src/esx/esx_vmx.c b/src/esx/esx_vmx.c index 142f2f7..f1c612d 100644 --- a/src/esx/esx_vmx.c +++ b/src/esx/esx_vmx.c @@ -637,7 +637,7 @@ esxVMX_AbsolutePathToDatastoreRelatedPath(esxVI_Context *ctx, } else if (STREQ(dynamicProperty->name, "summary.url")) { /* Ignore it */ } else { - VIR_WARN("Unexpected '%s' property", dynamicProperty->name); + VIR_WARN(_("Unexpected '%s' property"), dynamicProperty->name); } } } @@ -1221,7 +1221,7 @@ esxVMX_ParseVNC(virConfPtr conf, virDomainGraphicsDefPtr *def) (*def)->data.vnc.autoport = 1; } else { if (port < 5900 || port > 5964) { - VIR_WARN("VNC port %lld it out of [5900..5964] range", port); + VIR_WARN(_("VNC port %lld it out of [5900..5964] range"), port); } (*def)->data.vnc.port = port; @@ -2477,7 +2477,7 @@ esxVMX_FormatVNC(virDomainGraphicsDefPtr def, virBufferPtr buffer) "VNC port cannot be read back"); } else { if (def->data.vnc.port < 5900 || def->data.vnc.port > 5964) { - VIR_WARN("VNC port %d it out of [5900..5964] range", + VIR_WARN(_("VNC port %d it out of [5900..5964] range"), def->data.vnc.port); } diff --git a/src/lxc/lxc_conf.c b/src/lxc/lxc_conf.c index 8d7f69e..ad9a814 100644 --- a/src/lxc/lxc_conf.c +++ b/src/lxc/lxc_conf.c @@ -56,7 +56,7 @@ virCapsPtr lxcCapsInit(void) */ if (nodeCapsInitNUMA(caps) < 0) { virCapabilitiesFreeNUMAInfo(caps); - VIR_WARN0("Failed to query host NUMA topology, disabling NUMA capabilities"); + VIR_WARN0(_("Failed to query host NUMA topology, disabling NUMA capabilities")); } /* XXX shouldn't 'borrow' KVM's prefix */ @@ -120,7 +120,7 @@ int lxcLoadDriverConfig(lxc_driver_t *driver) p = virConfGetValue(conf, "log_with_libvirtd"); if (p) { if (p->type != VIR_CONF_LONG) - VIR_WARN0("lxcLoadDriverConfig: invalid setting: log_with_libvirtd"); + VIR_WARN0(_("lxcLoadDriverConfig: invalid setting: log_with_libvirtd")); else driver->log_libvirtd = p->l; } diff --git a/src/lxc/lxc_controller.c b/src/lxc/lxc_controller.c index c120b8e..6c89375 100644 --- a/src/lxc/lxc_controller.c +++ b/src/lxc/lxc_controller.c @@ -576,7 +576,7 @@ lxcControllerRun(virDomainDefPtr def, } if (access(devptmx, R_OK) < 0) { - VIR_WARN0("Kernel does not support private devpts, using shared devpts"); + VIR_WARN0(_("Kernel does not support private devpts, using shared devpts")); VIR_FREE(devptmx); } } diff --git a/src/lxc/lxc_driver.c b/src/lxc/lxc_driver.c index 8c3bbd3..840aeda 100644 --- a/src/lxc/lxc_driver.c +++ b/src/lxc/lxc_driver.c @@ -1878,7 +1878,7 @@ static int lxcStartup(int privileged) rc = virCgroupForDriver("lxc", &lxc_driver->cgroup, privileged, 1); if (rc < 0) { char buf[1024]; - VIR_WARN("Unable to create cgroup for driver: %s", + VIR_WARN(_("Unable to create cgroup for driver: %s"), virStrerror(-rc, buf, sizeof(buf))); } diff --git a/src/nodeinfo.c b/src/nodeinfo.c index 5ec1bcf..e6fbee1 100644 --- a/src/nodeinfo.c +++ b/src/nodeinfo.c @@ -336,7 +336,7 @@ nodeCapsInitNUMA(virCapsPtr caps) int i; int ncpus; if (numa_node_to_cpus(n, mask, mask_n_bytes) < 0) { - VIR_WARN("NUMA topology for cell %d of %d not available, ignoring", + VIR_WARN(_("NUMA topology for cell %d of %d not available, ignoring"), n, numa_max_node()); continue; } diff --git a/src/phyp/phyp_driver.c b/src/phyp/phyp_driver.c index cec99b1..0e32a18 100644 --- a/src/phyp/phyp_driver.c +++ b/src/phyp/phyp_driver.c @@ -1344,15 +1344,15 @@ phypDomainGetInfo(virDomainPtr dom, virDomainInfoPtr info) if ((info->maxMem = phypGetLparMem(dom->conn, managed_system, dom->id, 0)) == 0) - VIR_WARN("%s", "Unable to determine domain's max memory."); + VIR_WARN(_("%s"), "Unable to determine domain's max memory."); if ((info->memory = phypGetLparMem(dom->conn, managed_system, dom->id, 1)) == 0) - VIR_WARN("%s", "Unable to determine domain's memory."); + VIR_WARN(_("%s"), "Unable to determine domain's memory."); if ((info->nrVirtCpu = phypGetLparCPU(dom->conn, managed_system, dom->id)) == 0) - VIR_WARN("%s", "Unable to determine domain's CPU."); + VIR_WARN(_("%s"), "Unable to determine domain's CPU."); return 0; } @@ -1416,14 +1416,14 @@ phypDomainCreateAndStart(virConnectPtr conn, /* checking if this name already exists on this system */ if (phypGetLparID(session, managed_system, def->name, conn) == -1) { - VIR_WARN("%s", "LPAR name already exists."); + VIR_WARN(_("%s"), "LPAR name already exists."); goto err; } /* checking if ID or UUID already exists on this system */ for (i = 0; i < uuid_table->nlpars; i++) { if (lpars[i]->id == def->id || lpars[i]->uuid == def->uuid) { - VIR_WARN("%s", "LPAR ID or UUID already exists."); + VIR_WARN(_("%s"), "LPAR ID or UUID already exists."); goto err; } } @@ -1782,7 +1782,7 @@ phypUUIDTable_ReadFile(virConnectPtr conn) int id; if ((fd = open(local_file, O_RDONLY)) == -1) { - VIR_WARN("%s", "Unable to write information to local file."); + VIR_WARN(_("%s"), "Unable to write information to local file."); goto err; } @@ -1798,14 +1798,14 @@ phypUUIDTable_ReadFile(virConnectPtr conn) } uuid_table->lpars[i]->id = id; } else { - VIR_WARN("%s", + VIR_WARN(_("%s"), "Unable to read from information to local file."); goto err; } rc = read(fd, uuid_table->lpars[i]->uuid, VIR_UUID_BUFLEN); if (rc != VIR_UUID_BUFLEN) { - VIR_WARN("%s", + VIR_WARN(_("%s"), "Unable to read information to local file."); goto err; } @@ -1909,7 +1909,7 @@ phypUUIDTable_Init(virConnectPtr conn) uuid_table->lpars[i]->id = ids[i]; if (virUUIDGenerate(uuid_table->lpars[i]->uuid) < 0) - VIR_WARN("%s %d", "Unable to generate UUID for domain", + VIR_WARN(_("%s %d", "Unable to generate UUID for domain"), ids[i]); } } else { @@ -1968,12 +1968,12 @@ phypUUIDTable_Push(virConnectPtr conn) char local_file[] = "./uuid_table"; if (stat(local_file, &local_fileinfo) == -1) { - VIR_WARN0("Unable to stat local file."); + VIR_WARN0(_("Unable to stat local file.")); goto err; } if (!(fd = fopen(local_file, "rb"))) { - VIR_WARN0("Unable to open local file."); + VIR_WARN0(_("Unable to open local file.")); goto err; } @@ -2083,7 +2083,7 @@ phypUUIDTable_Pull(virConnectPtr conn) rc = libssh2_channel_read(channel, buffer, amount); if (rc > 0) { if (safewrite(fd, buffer, rc) != rc) - VIR_WARN("%s", + VIR_WARN(_("%s"), "Unable to write information to local file."); got += rc; diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c index 5fa8c0a..4cc49bf 100644 --- a/src/qemu/qemu_conf.c +++ b/src/qemu/qemu_conf.c @@ -1069,12 +1069,12 @@ virCapsPtr qemudCapsInit(virCapsPtr old_caps) { */ if (nodeCapsInitNUMA(caps) < 0) { virCapabilitiesFreeNUMAInfo(caps); - VIR_WARN0("Failed to query host NUMA topology, disabling NUMA capabilities"); + VIR_WARN0(_("Failed to query host NUMA topology, disabling NUMA capabilities")); } if (old_caps == NULL || old_caps->host.cpu == NULL) { if (qemudCapsInitCPU(caps, utsname.machine) < 0) - VIR_WARN0("Failed to get host CPU"); + VIR_WARN0(_("Failed to get host CPU")); } else { caps->host.cpu = old_caps->host.cpu; diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 9d23191..d830860 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -928,7 +928,7 @@ qemuHandleDomainStop(qemuMonitorPtr mon ATTRIBUTE_UNUSED, VIR_DOMAIN_EVENT_SUSPENDED_PAUSED); if (virDomainSaveStatus(driver->caps, driver->stateDir, vm) < 0) - VIR_WARN("Unable to save status on vm %s after IO error", vm->def->name); + VIR_WARN(_("Unable to save status on vm %s after IO error"), vm->def->name); } virDomainObjUnlock(vm); @@ -958,7 +958,7 @@ qemuHandleDomainRTCChange(qemuMonitorPtr mon ATTRIBUTE_UNUSED, vm->def->clock.data.adjustment = offset; if (virDomainSaveStatus(driver->caps, driver->stateDir, vm) < 0) - VIR_WARN0("unable to save domain status with RTC change"); + VIR_WARN0(_("unable to save domain status with RTC change")); virDomainObjUnlock(vm); @@ -994,7 +994,7 @@ qemuHandleDomainWatchdog(qemuMonitorPtr mon ATTRIBUTE_UNUSED, VIR_DOMAIN_EVENT_SUSPENDED_WATCHDOG); if (virDomainSaveStatus(driver->caps, driver->stateDir, vm) < 0) - VIR_WARN("Unable to save status on vm %s after IO error", vm->def->name); + VIR_WARN(_("Unable to save status on vm %s after IO error"), vm->def->name); } virDomainObjUnlock(vm); @@ -1050,7 +1050,7 @@ qemuHandleDomainIOError(qemuMonitorPtr mon ATTRIBUTE_UNUSED, VIR_DOMAIN_EVENT_SUSPENDED_IOERROR); if (virDomainSaveStatus(driver->caps, driver->stateDir, vm) < 0) - VIR_WARN("Unable to save status on vm %s after IO error", vm->def->name); + VIR_WARN(_("Unable to save status on vm %s after IO error"), vm->def->name); } virDomainObjUnlock(vm); @@ -1580,7 +1580,7 @@ qemudStartup(int privileged) { rc = virCgroupForDriver("qemu", &qemu_driver->cgroup, privileged, 1); if (rc < 0) { char buf[1024]; - VIR_WARN("Unable to create cgroup for driver: %s", + VIR_WARN(_("Unable to create cgroup for driver: %s"), virStrerror(-rc, buf, sizeof(buf))); } @@ -3077,7 +3077,7 @@ static int qemuSetupCgroup(struct qemud_driver *driver, rc = virCgroupDenyAllDevices(cgroup); if (rc != 0) { if (rc == -EPERM) { - VIR_WARN0("Group devices ACL is not accessible, disabling whitelisting"); + VIR_WARN0(_("Group devices ACL is not accessible, disabling whitelisting")); goto done; } @@ -3711,7 +3711,7 @@ retry: usleep(200*1000); goto retry; } - VIR_WARN("Failed to remove cgroup for %s", + VIR_WARN(_("Failed to remove cgroup for %s"), vm->def->name); } @@ -3944,7 +3944,7 @@ static int qemudGetProcessInfo(unsigned long long *cpuTime, int *lastCpu, int pi "%*u %*u %*u %*u %*u %*u %*u %*u %*u %*u %*d %d", &usertime, &systime, &cpu) != 3) { fclose(pidinfo); - VIR_WARN0("cannot parse process status data"); + VIR_WARN0(_("cannot parse process status data")); errno = -EINVAL; return -1; } @@ -4662,13 +4662,13 @@ qemuDomainWaitForMigrationComplete(struct qemud_driver *driver, virDomainObjPtr rc = qemuMonitorMigrateCancel(priv->mon); qemuDomainObjExitMonitorWithDriver(driver, vm); if (rc < 0) { - VIR_WARN0("Unable to cancel migration"); + VIR_WARN0(_("Unable to cancel migration")); } } else if (priv->jobSignals & QEMU_JOB_SIGNAL_SUSPEND) { priv->jobSignals ^= QEMU_JOB_SIGNAL_SUSPEND; VIR_DEBUG0("Pausing domain for non-live migration"); if (qemuDomainMigrateOffline(driver, vm) < 0) - VIR_WARN0("Unable to pause domain"); + VIR_WARN0(_("Unable to pause domain")); } else if (priv->jobSignals & QEMU_JOB_SIGNAL_MIGRATE_DOWNTIME) { unsigned long long ms = priv->jobSignalsData.migrateDowntime; @@ -4679,7 +4679,7 @@ qemuDomainWaitForMigrationComplete(struct qemud_driver *driver, virDomainObjPtr rc = qemuMonitorSetMigrationDowntime(priv->mon, ms); qemuDomainObjExitMonitorWithDriver(driver, vm); if (rc < 0) - VIR_WARN0("Unable to set migration downtime"); + VIR_WARN0(_("Unable to set migration downtime")); } qemuDomainObjEnterMonitorWithDriver(driver, vm); @@ -5102,12 +5102,12 @@ static int qemudDomainSaveFlag(virDomainPtr dom, const char *path, driver->securityDriver && driver->securityDriver->domainRestoreSavedStateLabel && driver->securityDriver->domainRestoreSavedStateLabel(vm, path) == -1) - VIR_WARN("failed to restore save state label on %s", path); + VIR_WARN(_("failed to restore save state label on %s"), path); if (cgroup != NULL) { rc = virCgroupDenyDevicePath(cgroup, path); if (rc != 0) - VIR_WARN("Unable to deny device %s for %s %d", + VIR_WARN(_("Unable to deny device %s for %s %d"), path, vm->def->name, rc); } @@ -5133,7 +5133,7 @@ endjob: rc = qemuMonitorStartCPUs(priv->mon, dom->conn); qemuDomainObjExitMonitorWithDriver(driver, vm); if (rc < 0) - VIR_WARN0("Unable to resume guest CPUs after save failure"); + VIR_WARN0(_("Unable to resume guest CPUs after save failure")); else vm->state = VIR_DOMAIN_RUNNING; } @@ -5141,7 +5141,7 @@ endjob: if (cgroup != NULL) { rc = virCgroupDenyDevicePath(cgroup, path); if (rc != 0) - VIR_WARN("Unable to deny device %s for %s: %d", + VIR_WARN(_("Unable to deny device %s for %s: %d"), path, vm->def->name, rc); } @@ -5149,7 +5149,7 @@ endjob: driver->securityDriver && driver->securityDriver->domainRestoreSavedStateLabel && driver->securityDriver->domainRestoreSavedStateLabel(vm, path) == -1) - VIR_WARN("failed to restore save state label on %s", path); + VIR_WARN(_("failed to restore save state label on %s"), path); } if (qemuDomainObjEndJob(vm) == 0) @@ -6177,7 +6177,7 @@ static int qemudDomainRestore(virConnectPtr conn, qemuDomainObjExitMonitorWithDriver(driver, vm); vm->state = VIR_DOMAIN_RUNNING; if (virDomainSaveStatus(driver->caps, driver->stateDir, vm) < 0) { - VIR_WARN("Failed to save status on vm %s", vm->def->name); + VIR_WARN(_("Failed to save status on vm %s"), vm->def->name); goto endjob; } } @@ -6529,7 +6529,7 @@ static int qemudDomainStart(virDomainPtr dom) { ret = qemudDomainRestore(dom->conn, managed_save); if (unlink(managed_save) < 0) { - VIR_WARN("Failed to remove the managed state %s", managed_save); + VIR_WARN(_("Failed to remove the managed state %s"), managed_save); } if (ret == 0) { @@ -6847,7 +6847,7 @@ static int qemudDomainChangeEjectableMedia(struct qemud_driver *driver, if (driver->securityDriver && driver->securityDriver->domainRestoreSecurityImageLabel && driver->securityDriver->domainRestoreSecurityImageLabel(vm, origdisk) < 0) - VIR_WARN("Unable to restore security label on ejected image %s", origdisk->src); + VIR_WARN(_("Unable to restore security label on ejected image %s"), origdisk->src); VIR_FREE(origdisk->src); origdisk->src = disk->src; @@ -6865,7 +6865,7 @@ error: if (driver->securityDriver && driver->securityDriver->domainRestoreSecurityImageLabel && driver->securityDriver->domainRestoreSecurityImageLabel(vm, disk) < 0) - VIR_WARN("Unable to restore security label on new media %s", disk->src); + VIR_WARN(_("Unable to restore security label on new media %s"), disk->src); return -1; } @@ -6954,12 +6954,12 @@ error: if ((qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE) && (disk->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) && qemuDomainPCIAddressReleaseAddr(priv->pciaddrs, &disk->info) < 0) - VIR_WARN("Unable to release PCI address on %s", disk->src); + VIR_WARN(_("Unable to release PCI address on %s"), disk->src); if (driver->securityDriver && driver->securityDriver->domainRestoreSecurityImageLabel && driver->securityDriver->domainRestoreSecurityImageLabel(vm, disk) < 0) - VIR_WARN("Unable to restore security label on %s", disk->src); + VIR_WARN(_("Unable to restore security label on %s"), disk->src); return -1; } @@ -7023,7 +7023,7 @@ cleanup: (qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE) && (controller->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) && qemuDomainPCIAddressReleaseAddr(priv->pciaddrs, &controller->info) < 0) - VIR_WARN0("Unable to release PCI address on controller"); + VIR_WARN0(_("Unable to release PCI address on controller")); VIR_FREE(devstr); return ret; @@ -7177,7 +7177,7 @@ error: if (driver->securityDriver && driver->securityDriver->domainRestoreSecurityImageLabel && driver->securityDriver->domainRestoreSecurityImageLabel(vm, disk) < 0) - VIR_WARN("Unable to restore security label on %s", disk->src); + VIR_WARN(_("Unable to restore security label on %s"), disk->src); return -1; } @@ -7260,7 +7260,7 @@ error: if (driver->securityDriver && driver->securityDriver->domainRestoreSecurityImageLabel && driver->securityDriver->domainRestoreSecurityImageLabel(vm, disk) < 0) - VIR_WARN("Unable to restore security label on %s", disk->src); + VIR_WARN(_("Unable to restore security label on %s"), disk->src); return -1; } @@ -7419,7 +7419,7 @@ cleanup: (qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE) && (net->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) && qemuDomainPCIAddressReleaseAddr(priv->pciaddrs, &net->info) < 0) - VIR_WARN0("Unable to release PCI address on NIC"); + VIR_WARN0(_("Unable to release PCI address on NIC")); if (ret != 0) virNWFilterTearNWFilter(net); @@ -7545,7 +7545,7 @@ error: if ((qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE) && (hostdev->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) && qemuDomainPCIAddressReleaseAddr(priv->pciaddrs, &hostdev->info) < 0) - VIR_WARN0("Unable to release PCI address on host device"); + VIR_WARN0(_("Unable to release PCI address on host device")); VIR_FREE(devstr); pciDeviceListDel(driver->activePciHostdevs, pci); @@ -7658,7 +7658,7 @@ error: if (driver->securityDriver && driver->securityDriver->domainRestoreSecurityHostdevLabel && driver->securityDriver->domainRestoreSecurityHostdevLabel(vm, hostdev) < 0) - VIR_WARN0("Unable to restore host device labelling on hotplug fail"); + VIR_WARN0(_("Unable to restore host device labelling on hotplug fail")); return -1; } @@ -7757,7 +7757,7 @@ static int qemudDomainAttachDevice(virDomainPtr dom, } if (ret != 0 && cgroup) { if (qemuTeardownDiskCgroup(cgroup, vm, dev->data.disk) < 0) - VIR_WARN("Failed to teardown cgroup for disk path %s", + VIR_WARN(_("Failed to teardown cgroup for disk path %s"), NULLSTR(dev->data.disk->src)); } } else if (dev->type == VIR_DOMAIN_DEVICE_CONTROLLER) { @@ -7980,7 +7980,7 @@ static int qemuDomainUpdateDeviceFlags(virDomainPtr dom, if (ret != 0 && cgroup) { if (qemuTeardownDiskCgroup(cgroup, vm, dev->data.disk) < 0) - VIR_WARN("Failed to teardown cgroup for disk path %s", + VIR_WARN(_("Failed to teardown cgroup for disk path %s"), NULLSTR(dev->data.disk->src)); } break; @@ -8103,11 +8103,11 @@ static int qemudDomainDetachPciDiskDevice(struct qemud_driver *driver, if (driver->securityDriver && driver->securityDriver->domainRestoreSecurityImageLabel && driver->securityDriver->domainRestoreSecurityImageLabel(vm, dev->data.disk) < 0) - VIR_WARN("Unable to restore security label on %s", dev->data.disk->src); + VIR_WARN(_("Unable to restore security label on %s"), dev->data.disk->src); if (cgroup != NULL) { if (qemuTeardownDiskCgroup(cgroup, vm, dev->data.disk) < 0) - VIR_WARN("Failed to teardown cgroup for disk path %s", + VIR_WARN(_("Failed to teardown cgroup for disk path %s"), NULLSTR(dev->data.disk->src)); } @@ -8166,11 +8166,11 @@ static int qemudDomainDetachSCSIDiskDevice(struct qemud_driver *driver, if (driver->securityDriver && driver->securityDriver->domainRestoreSecurityImageLabel && driver->securityDriver->domainRestoreSecurityImageLabel(vm, dev->data.disk) < 0) - VIR_WARN("Unable to restore security label on %s", dev->data.disk->src); + VIR_WARN(_("Unable to restore security label on %s"), dev->data.disk->src); if (cgroup != NULL) { if (qemuTeardownDiskCgroup(cgroup, vm, dev->data.disk) < 0) - VIR_WARN("Failed to teardown cgroup for disk path %s", + VIR_WARN(_("Failed to teardown cgroup for disk path %s"), NULLSTR(dev->data.disk->src)); } @@ -8247,7 +8247,7 @@ static int qemudDomainDetachPciControllerDevice(struct qemud_driver *driver, } if (qemuDomainPCIAddressReleaseAddr(priv->pciaddrs, &detach->info) < 0) { - VIR_WARN0("Unable to release PCI address on controller"); + VIR_WARN0(_("Unable to release PCI address on controller")); } virDomainControllerDefFree(detach); @@ -8585,7 +8585,7 @@ static int qemudDomainDetachHostDevice(struct qemud_driver *driver, if (driver->securityDriver && driver->securityDriver->domainRestoreSecurityHostdevLabel && driver->securityDriver->domainRestoreSecurityHostdevLabel(vm, dev->data.hostdev) < 0) - VIR_WARN0("Failed to restore host device labelling"); + VIR_WARN0(_("Failed to restore host device labelling")); return ret; } diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c index 3c0a823..4404ad8 100644 --- a/src/qemu/qemu_monitor_json.c +++ b/src/qemu/qemu_monitor_json.c @@ -83,7 +83,7 @@ qemuMonitorJSONIOProcessEvent(qemuMonitorPtr mon, type = virJSONValueObjectGetString(obj, "event"); if (!type) { - VIR_WARN0("missing event type in message"); + VIR_WARN0(_("missing event type in message")); errno = EINVAL; return -1; } @@ -536,7 +536,7 @@ static void qemuMonitorJSONHandleRTCChange(qemuMonitorPtr mon, virJSONValuePtr d { long long offset = 0; if (virJSONValueObjectGetNumberLong(data, "offset", &offset) < 0) { - VIR_WARN0("missing offset in RTC change event"); + VIR_WARN0(_("missing offset in RTC change event")); offset = 0; } qemuMonitorEmitRTCChange(mon, offset); @@ -551,11 +551,11 @@ static void qemuMonitorJSONHandleWatchdog(qemuMonitorPtr mon, virJSONValuePtr da const char *action; int actionID; if (!(action = virJSONValueObjectGetString(data, "action"))) { - VIR_WARN0("missing action in watchdog event"); + VIR_WARN0(_("missing action in watchdog event")); } if (action) { if ((actionID = qemuMonitorWatchdogActionTypeFromString(action)) < 0) { - VIR_WARN("unknown action %s in watchdog event", action); + VIR_WARN(_("unknown action %s in watchdog event"), action); actionID = VIR_DOMAIN_EVENT_WATCHDOG_NONE; } } else { @@ -581,21 +581,21 @@ static void qemuMonitorJSONHandleIOError(qemuMonitorPtr mon, virJSONValuePtr dat to the application */ if ((action = virJSONValueObjectGetString(data, "action")) == NULL) { - VIR_WARN0("Missing action in disk io error event"); + VIR_WARN0(_("Missing action in disk io error event")); action = "ignore"; } if ((device = virJSONValueObjectGetString(data, "device")) == NULL) { - VIR_WARN0("missing device in disk io error event"); + VIR_WARN0(_("missing device in disk io error event")); } if ((reason = virJSONValueObjectGetString(data, "reason")) == NULL) { - VIR_WARN0("missing reason in disk io error event"); + VIR_WARN0(_("missing reason in disk io error event")); reason = ""; } if ((actionID = qemuMonitorIOErrorActionTypeFromString(action)) < 0) { - VIR_WARN("unknown disk io error action '%s'", action); + VIR_WARN(_("unknown disk io error action '%s'"), action); actionID = VIR_DOMAIN_EVENT_IO_ERROR_NONE; } @@ -617,11 +617,11 @@ static void qemuMonitorJSONHandleVNC(qemuMonitorPtr mon, virJSONValuePtr data, i virJSONValuePtr server; if (!(client = virJSONValueObjectGet(data, "client"))) { - VIR_WARN0("missing client info in VNC event"); + VIR_WARN0(_("missing client info in VNC event")); return; } if (!(server = virJSONValueObjectGet(data, "server"))) { - VIR_WARN0("missing server info in VNC event"); + VIR_WARN0(_("missing server info in VNC event")); return; } @@ -639,11 +639,11 @@ static void qemuMonitorJSONHandleVNC(qemuMonitorPtr mon, virJSONValuePtr data, i x509dname = virJSONValueObjectGetString(client, "x509_dname"); if ((localFamilyID = qemuMonitorGraphicsAddressFamilyTypeFromString(localFamily)) < 0) { - VIR_WARN("unknown address family '%s'", localFamily); + VIR_WARN(_("unknown address family '%s'"), localFamily); localFamilyID = VIR_DOMAIN_EVENT_GRAPHICS_ADDRESS_IPV4; } if ((remoteFamilyID = qemuMonitorGraphicsAddressFamilyTypeFromString(remoteFamily)) < 0) { - VIR_WARN("unknown address family '%s'", remoteFamily); + VIR_WARN(_("unknown address family '%s'"), remoteFamily); remoteFamilyID = VIR_DOMAIN_EVENT_GRAPHICS_ADDRESS_IPV4; } diff --git a/src/remote/remote_driver.c b/src/remote/remote_driver.c index 990bfce..387a8fd 100644 --- a/src/remote/remote_driver.c +++ b/src/remote/remote_driver.c @@ -8009,7 +8009,7 @@ remoteStreamHasError(virStreamPtr st) { return 0; } - VIR_WARN0("Raising async error"); + VIR_WARN0(_("Raising async error")); virRaiseErrorFull(st->conn, __FILE__, __FUNCTION__, __LINE__, privst->err.domain, @@ -9406,7 +9406,7 @@ processCallDispatchStream(virConnectPtr conn ATTRIBUTE_UNUSED, privst = privst->next; if (!privst) { - VIR_WARN("No registered stream matching serial=%d, proc=%d", + VIR_WARN(_("No registered stream matching serial=%d, proc=%d"), hdr->serial, hdr->proc); return -1; } @@ -9426,7 +9426,7 @@ processCallDispatchStream(virConnectPtr conn ATTRIBUTE_UNUSED, case REMOTE_CONTINUE: { int avail = privst->incomingLength - privst->incomingOffset; int need = priv->bufferLength - priv->bufferOffset; - VIR_WARN0("Got a stream data packet"); + VIR_WARN0(_("Got a stream data packet")); /* XXX flag stream as complete somwhere if need==0 */ @@ -9434,7 +9434,7 @@ processCallDispatchStream(virConnectPtr conn ATTRIBUTE_UNUSED, int extra = need - avail; if (VIR_REALLOC_N(privst->incoming, privst->incomingLength + extra) < 0) { - VIR_WARN0("Out of memory"); + VIR_WARN0(_("Out of memory")); return -1; } privst->incomingLength += extra; @@ -9446,18 +9446,18 @@ processCallDispatchStream(virConnectPtr conn ATTRIBUTE_UNUSED, privst->incomingOffset += (priv->bufferLength - priv->bufferOffset); if (thecall && thecall->want_reply) { - VIR_WARN("Got sync data packet offset=%d", privst->incomingOffset); + VIR_WARN(_("Got sync data packet offset=%d"), privst->incomingOffset); thecall->mode = REMOTE_MODE_COMPLETE; } else { - VIR_WARN("Got aysnc data packet offset=%d", privst->incomingOffset); + VIR_WARN(_("Got aysnc data packet offset=%d"), privst->incomingOffset); } return 0; } case REMOTE_OK: - VIR_WARN0("Got a synchronous confirm"); + VIR_WARN0(_("Got a synchronous confirm")); if (!thecall) { - VIR_WARN0("Got unexpected stream finish confirmation"); + VIR_WARN0(_("Got unexpected stream finish confirmation")); return -1; } thecall->mode = REMOTE_MODE_COMPLETE; @@ -9465,7 +9465,7 @@ processCallDispatchStream(virConnectPtr conn ATTRIBUTE_UNUSED, case REMOTE_ERROR: if (thecall && thecall->want_reply) { - VIR_WARN0("Got a synchronous error"); + VIR_WARN0(_("Got a synchronous error")); /* Give the error straight to this call */ memset (&thecall->err, 0, sizeof thecall->err); if (!xdr_remote_error (xdr, &thecall->err)) { @@ -9474,23 +9474,23 @@ processCallDispatchStream(virConnectPtr conn ATTRIBUTE_UNUSED, } thecall->mode = REMOTE_MODE_ERROR; } else { - VIR_WARN0("Got a asynchronous error"); + VIR_WARN0(_("Got a asynchronous error")); /* No call, so queue the error against the stream */ if (privst->has_error) { - VIR_WARN0("Got unexpected duplicate stream error"); + VIR_WARN0(_("Got unexpected duplicate stream error")); return -1; } privst->has_error = 1; memset (&privst->err, 0, sizeof privst->err); if (!xdr_remote_error (xdr, &privst->err)) { - VIR_WARN0("Failed to unmarshall error"); + VIR_WARN0(_("Failed to unmarshall error")); return -1; } } return 0; default: - VIR_WARN("Stream with unexpected serial=%d, proc=%d, status=%d", + VIR_WARN(_("Stream with unexpected serial=%d, proc=%d, status=%d"), hdr->serial, hdr->proc, hdr->status); return -1; } diff --git a/src/security/security_selinux.c b/src/security/security_selinux.c index 669ef42..e61d235 100644 --- a/src/security/security_selinux.c +++ b/src/security/security_selinux.c @@ -768,7 +768,7 @@ SELinuxSetSecurityAllLabel(virDomainObjPtr vm) for (i = 0 ; i < vm->def->ndisks ; i++) { /* XXX fixme - we need to recursively label the entire tree :-( */ if (vm->def->disks[i]->type == VIR_DOMAIN_DISK_TYPE_DIR) { - VIR_WARN("Unable to relabel directory tree %s for disk %s", + VIR_WARN(_("Unable to relabel directory tree %s for disk %s"), vm->def->disks[i]->src, vm->def->disks[i]->dst); continue; } diff --git a/src/storage/storage_backend_logical.c b/src/storage/storage_backend_logical.c index 06238d1..7263487 100644 --- a/src/storage/storage_backend_logical.c +++ b/src/storage/storage_backend_logical.c @@ -331,7 +331,7 @@ virStorageBackendLogicalFindPoolSources(virConnectPtr conn ATTRIBUTE_UNUSED, * worst that happens is that scanning doesn't pick everything up */ if (virRun(scanprog, &exitstatus) < 0) { - VIR_WARN0("Failure when running vgscan to refresh physical volumes"); + VIR_WARN0(_("Failure when running vgscan to refresh physical volumes")); } memset(&sourceList, 0, sizeof(sourceList)); diff --git a/src/uml/uml_conf.c b/src/uml/uml_conf.c index a10bca0..ba55b50 100644 --- a/src/uml/uml_conf.c +++ b/src/uml/uml_conf.c @@ -70,7 +70,7 @@ virCapsPtr umlCapsInit(void) { */ if (nodeCapsInitNUMA(caps) < 0) { virCapabilitiesFreeNUMAInfo(caps); - VIR_WARN0("Failed to query host NUMA topology, disabling NUMA capabilities"); + VIR_WARN0(_("Failed to query host NUMA topology, disabling NUMA capabilities")); } if ((guest = virCapabilitiesAddGuest(caps, diff --git a/src/uml/uml_driver.c b/src/uml/uml_driver.c index ffb87c8..15dd505 100644 --- a/src/uml/uml_driver.c +++ b/src/uml/uml_driver.c @@ -318,10 +318,10 @@ reread: dom->state = VIR_DOMAIN_RUNNING; if (umlOpenMonitor(driver, dom) < 0) { - VIR_WARN0("Could not open monitor for new domain"); + VIR_WARN0(_("Could not open monitor for new domain")); umlShutdownVMDaemon(NULL, driver, dom); } else if (umlIdentifyChrPTY(driver, dom) < 0) { - VIR_WARN0("Could not identify charater devices for new domain"); + VIR_WARN0(_("Could not identify charater devices for new domain")); umlShutdownVMDaemon(NULL, driver, dom); } } diff --git a/src/util/hooks.c b/src/util/hooks.c index dec9223..a163f2c 100644 --- a/src/util/hooks.c +++ b/src/util/hooks.c @@ -113,7 +113,7 @@ virHookCheck(int no, const char *driver) { } else { if ((access(path, X_OK) != 0) || (!S_ISREG(sb.st_mode))) { ret = 0; - VIR_WARN("Non executable hook script %s", path); + VIR_WARN(_("Non executable hook script %s"), path); } else { ret = 1; VIR_DEBUG("Found hook script %s", path); diff --git a/src/util/json.c b/src/util/json.c index f90594c..67b1421 100644 --- a/src/util/json.c +++ b/src/util/json.c @@ -922,7 +922,7 @@ cleanup: if (parser.nstate) { int i; - VIR_WARN("cleanup state %d", parser.nstate); + VIR_WARN(_("cleanup state %d"), parser.nstate); for (i = 0 ; i < parser.nstate ; i++) { VIR_FREE(parser.state[i].key); } diff --git a/src/util/pci.c b/src/util/pci.c index a1bd8e3..404a4d0 100644 --- a/src/util/pci.c +++ b/src/util/pci.c @@ -277,7 +277,7 @@ pciIterDevices(pciIterPredicate predicate, dir = opendir(PCI_SYSFS "devices"); if (!dir) { - VIR_WARN0("Failed to open " PCI_SYSFS "devices"); + VIR_WARN0(_("Failed to open " PCI_SYSFS "devices")); return -1; } @@ -299,7 +299,7 @@ pciIterDevices(pciIterPredicate predicate, virStrToLong_ui(tmp + 1, &tmp, 16, &slot) < 0 || *tmp != '.' || /* function */ virStrToLong_ui(tmp + 1, NULL, 16, &function) < 0) { - VIR_WARN("Unusual entry in " PCI_SYSFS "devices: %s", entry->d_name); + VIR_WARN(_("Unusual entry in " PCI_SYSFS "devices: %s"), entry->d_name); continue; } diff --git a/src/util/util.c b/src/util/util.c index e937d39..f623234 100644 --- a/src/util/util.c +++ b/src/util/util.c @@ -292,7 +292,7 @@ static int virClearCapabilities(void) # else static int virClearCapabilities(void) { -// VIR_WARN0("libcap-ng support not compiled in, unable to clear capabilities"); +// VIR_WARN0(_("libcap-ng support not compiled in, unable to clear capabilities")); return 0; } # endif diff --git a/src/xen/proxy_internal.c b/src/xen/proxy_internal.c index 1efdb83..96091dc 100644 --- a/src/xen/proxy_internal.c +++ b/src/xen/proxy_internal.c @@ -147,7 +147,7 @@ virProxyForkServer(void) const char *proxyarg[2]; if (!proxyPath) { - VIR_WARN0("failed to find libvirt_proxy"); + VIR_WARN0(_("failed to find libvirt_proxy")); return(-1); } @@ -271,7 +271,7 @@ retry: VIR_DEBUG("read socket %d interrupted", fd); goto retry; } - VIR_WARN("Failed to read socket %d", fd); + VIR_WARN(_("Failed to read socket %d"), fd); return(-1); } diff --git a/src/xenapi/xenapi_utils.c b/src/xenapi/xenapi_utils.c index 4eb17fa..1cd24c7 100644 --- a/src/xenapi/xenapi_utils.c +++ b/src/xenapi/xenapi_utils.c @@ -312,7 +312,7 @@ getCpuBitMapfromString(char *mask, unsigned char *cpumap, int maplen) if (virStrToLong_i(num, NULL, 10, &pos) < 0) return; if (pos < 0 || pos > max_bits - 1) - VIR_WARN ("number in str %d exceeds cpumap's max bits %d", pos, max_bits); + VIR_WARN (_("number in str %d exceeds cpumap's max bits %d"), pos, max_bits); else (cpumap)[pos / 8] |= (1 << (pos % 8)); num = strtok_r(NULL, ",", &bp); -- 1.7.1.250.g7d1e8 >From 1e2f998851c82487bf915da76de1a652ab6823e6 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Tue, 18 May 2010 16:37:23 +0200 Subject: [PATCH 2/3] maint: mark more translatable strings, now manually * po/POTFILES.in: Add three file names. Mark translatable strings in the following, manually fixing bogus uses of VIR_WARN and VIR_WARN0: * src/esx/esx_vi.c (esxVI_GetVirtualMachineIdentity): Likewise. * src/esx/esx_vmx.c (esxVMX_AbsolutePathToDatastoreRelatedPath): (esxVMX_ParseVNC, esxVMX_ParseDisk, esxVMX_FormatVNC): Likewise. * src/phyp/phyp_driver.c (phypDomainGetInfo): Likewise. (phypDomainCreateAndStart, phypUUIDTable_ReadFile) Likewise. (phypUUIDTable_Init, phypUUIDTable_Pull): Likewise. * src/util/pci.c (pciIterDevices): Likewise. --- po/POTFILES.in | 7 +++++-- src/esx/esx_vi.c | 4 ++-- src/esx/esx_vmx.c | 16 ++++++++-------- src/phyp/phyp_driver.c | 24 ++++++++++-------------- src/util/pci.c | 5 +++-- 5 files changed, 28 insertions(+), 28 deletions(-) diff --git a/po/POTFILES.in b/po/POTFILES.in index 88218bd..3346654 100644 --- a/po/POTFILES.in +++ b/po/POTFILES.in @@ -1,4 +1,5 @@ daemon/dispatch.c +daemon/event.c daemon/libvirtd.c daemon/remote.c daemon/stream.c @@ -18,6 +19,7 @@ src/cpu/cpu_generic.c src/cpu/cpu_map.c src/cpu/cpu_x86.c src/datatypes.c +src/driver.c src/esx/esx_driver.c src/esx/esx_util.c src/esx/esx_vi.c @@ -27,6 +29,7 @@ src/esx/esx_vmx.c src/interface/netcf_driver.c src/internal.h src/libvirt.c +src/lxc/lxc_conf.c src/lxc/lxc_container.c src/lxc/lxc_controller.c src/lxc/lxc_driver.c @@ -53,8 +56,8 @@ src/qemu/qemu_monitor_text.c src/qemu/qemu_security_dac.c src/remote/remote_driver.c src/secret/secret_driver.c -src/security/security_driver.c src/security/security_apparmor.c +src/security/security_driver.c src/security/security_selinux.c src/security/virt-aa-helper.c src/storage/storage_backend.c @@ -89,10 +92,10 @@ src/util/xml.c src/vbox/vbox_driver.c src/vbox/vbox_tmpl.c src/xen/proxy_internal.c -src/xen/xend_internal.c src/xen/xen_driver.c src/xen/xen_hypervisor.c src/xen/xen_inotify.c +src/xen/xend_internal.c src/xen/xm_internal.c src/xen/xs_internal.c src/xenapi/xenapi_driver.c diff --git a/src/esx/esx_vi.c b/src/esx/esx_vi.c index 2f41c58..d005a47 100644 --- a/src/esx/esx_vi.c +++ b/src/esx/esx_vi.c @@ -1679,8 +1679,8 @@ esxVI_GetVirtualMachineIdentity(esxVI_ObjectContent *virtualMachine, } else { memset(uuid, 0, VIR_UUID_BUFLEN); - VIR_WARN0("Cannot access UUID, because 'configStatus' property " - "indicates a config problem"); + VIR_WARN0(_("Cannot access UUID, because 'configStatus' property " + "indicates a config problem")); } } diff --git a/src/esx/esx_vmx.c b/src/esx/esx_vmx.c index f1c612d..fa5fec9 100644 --- a/src/esx/esx_vmx.c +++ b/src/esx/esx_vmx.c @@ -643,8 +643,8 @@ esxVMX_AbsolutePathToDatastoreRelatedPath(esxVI_Context *ctx, } if (datastoreName == NULL) { - VIR_WARN("Could not retrieve datastore name for absolute " - "path '%s', falling back to preliminary name '%s'", + VIR_WARN(_("Could not retrieve datastore name for absolute " + "path '%s', falling back to preliminary name '%s'"), absolutePath, preliminaryDatastoreName); datastoreName = preliminaryDatastoreName; @@ -1214,8 +1214,8 @@ esxVMX_ParseVNC(virConfPtr conf, virDomainGraphicsDefPtr *def) } if (port < 0) { - VIR_WARN0("VNC is enabled but VMX entry 'RemoteDisplay.vnc.port' " - "is missing, the VNC port is unknown"); + VIR_WARN0(_("VNC is enabled but VMX entry 'RemoteDisplay.vnc.port' " + "is missing, the VNC port is unknown")); (*def)->data.vnc.port = 0; (*def)->data.vnc.autoport = 1; @@ -1558,8 +1558,8 @@ esxVMX_ParseDisk(esxVI_Context *ctx, virConfPtr conf, int device, int bus, * the default based on the guestOS. The mechanism to * obtain the default is currently missing */ - VIR_WARN0("No explicit SCSI driver specified in VMX config, " - "cannot represent explicit specified cachemode"); + VIR_WARN0(_("No explicit SCSI driver specified in VMX config, " + "cannot represent explicit specified cachemode")); } (*def)->type = VIR_DOMAIN_DISK_TYPE_FILE; @@ -2473,8 +2473,8 @@ esxVMX_FormatVNC(virDomainGraphicsDefPtr def, virBufferPtr buffer) virBufferVSprintf(buffer, "RemoteDisplay.vnc.enabled = \"true\"\n"); if (def->data.vnc.autoport) { - VIR_WARN0("VNC autoport is enabled, but the automatically assigned " - "VNC port cannot be read back"); + VIR_WARN0(_("VNC autoport is enabled, but the automatically assigned " + "VNC port cannot be read back")); } else { if (def->data.vnc.port < 5900 || def->data.vnc.port > 5964) { VIR_WARN(_("VNC port %d it out of [5900..5964] range"), diff --git a/src/phyp/phyp_driver.c b/src/phyp/phyp_driver.c index 0e32a18..c2fb839 100644 --- a/src/phyp/phyp_driver.c +++ b/src/phyp/phyp_driver.c @@ -1344,15 +1344,15 @@ phypDomainGetInfo(virDomainPtr dom, virDomainInfoPtr info) if ((info->maxMem = phypGetLparMem(dom->conn, managed_system, dom->id, 0)) == 0) - VIR_WARN(_("%s"), "Unable to determine domain's max memory."); + VIR_WARN0(_("Unable to determine domain's max memory.")); if ((info->memory = phypGetLparMem(dom->conn, managed_system, dom->id, 1)) == 0) - VIR_WARN(_("%s"), "Unable to determine domain's memory."); + VIR_WARN0(_("Unable to determine domain's memory.")); if ((info->nrVirtCpu = phypGetLparCPU(dom->conn, managed_system, dom->id)) == 0) - VIR_WARN(_("%s"), "Unable to determine domain's CPU."); + VIR_WARN0(_("Unable to determine domain's CPU.")); return 0; } @@ -1416,14 +1416,14 @@ phypDomainCreateAndStart(virConnectPtr conn, /* checking if this name already exists on this system */ if (phypGetLparID(session, managed_system, def->name, conn) == -1) { - VIR_WARN(_("%s"), "LPAR name already exists."); + VIR_WARN0(_("LPAR name already exists.")); goto err; } /* checking if ID or UUID already exists on this system */ for (i = 0; i < uuid_table->nlpars; i++) { if (lpars[i]->id == def->id || lpars[i]->uuid == def->uuid) { - VIR_WARN(_("%s"), "LPAR ID or UUID already exists."); + VIR_WARN0(_("LPAR ID or UUID already exists.")); goto err; } } @@ -1782,7 +1782,7 @@ phypUUIDTable_ReadFile(virConnectPtr conn) int id; if ((fd = open(local_file, O_RDONLY)) == -1) { - VIR_WARN(_("%s"), "Unable to write information to local file."); + VIR_WARN0(_("Unable to write information to local file.")); goto err; } @@ -1798,15 +1798,13 @@ phypUUIDTable_ReadFile(virConnectPtr conn) } uuid_table->lpars[i]->id = id; } else { - VIR_WARN(_("%s"), - "Unable to read from information to local file."); + VIR_WARN0(_("Unable to read from information to local file.")); goto err; } rc = read(fd, uuid_table->lpars[i]->uuid, VIR_UUID_BUFLEN); if (rc != VIR_UUID_BUFLEN) { - VIR_WARN(_("%s"), - "Unable to read information to local file."); + VIR_WARN0(_("Unable to read information to local file.")); goto err; } } @@ -1909,8 +1907,7 @@ phypUUIDTable_Init(virConnectPtr conn) uuid_table->lpars[i]->id = ids[i]; if (virUUIDGenerate(uuid_table->lpars[i]->uuid) < 0) - VIR_WARN(_("%s %d", "Unable to generate UUID for domain"), - ids[i]); + VIR_WARN(_("Unable to generate UUID for domain %d"), ids[i]); } } else { virReportOOMError(); @@ -2083,8 +2080,7 @@ phypUUIDTable_Pull(virConnectPtr conn) rc = libssh2_channel_read(channel, buffer, amount); if (rc > 0) { if (safewrite(fd, buffer, rc) != rc) - VIR_WARN(_("%s"), - "Unable to write information to local file."); + VIR_WARN0(_("Unable to write information to local file.")); got += rc; total += rc; diff --git a/src/util/pci.c b/src/util/pci.c index 404a4d0..ab0c4ac 100644 --- a/src/util/pci.c +++ b/src/util/pci.c @@ -277,7 +277,7 @@ pciIterDevices(pciIterPredicate predicate, dir = opendir(PCI_SYSFS "devices"); if (!dir) { - VIR_WARN0(_("Failed to open " PCI_SYSFS "devices")); + VIR_WARN(_("Failed to open %s devices"), PCI_SYSFS); return -1; } @@ -299,7 +299,8 @@ pciIterDevices(pciIterPredicate predicate, virStrToLong_ui(tmp + 1, &tmp, 16, &slot) < 0 || *tmp != '.' || /* function */ virStrToLong_ui(tmp + 1, NULL, 16, &function) < 0) { - VIR_WARN(_("Unusual entry in " PCI_SYSFS "devices: %s"), entry->d_name); + VIR_WARN(_("Unusual entry in %s devices: %s"), + PCI_SYSFS, entry->d_name); continue; } -- 1.7.1.250.g7d1e8 >From 525e752c3bd078263713aa33355c840777c6485b Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Tue, 18 May 2010 16:10:50 +0200 Subject: [PATCH 3/3] maint: add VIR_WARN{,0} to the list of diag-printing functions * cfg.mk (msg_gen_function): Add VIR_WARN and VIR_WARN0, so that "make syntax-check" ensures their diagnostics are marked for translation. --- cfg.mk | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/cfg.mk b/cfg.mk index 96d6953..49300a0 100644 --- a/cfg.mk +++ b/cfg.mk @@ -358,6 +358,8 @@ msg_gen_function += virXendError msg_gen_function += xenapiSessionErrorHandler msg_gen_function += xenUnifiedError msg_gen_function += xenXMError +msg_gen_function += VIR_WARN +msg_gen_function += VIR_WARN0 # Uncomment the following and run "make syntax-check" to see diagnostics # that are not yet marked for translation, but that need to be rewritten -- 1.7.1.250.g7d1e8

3 5

[libvirt] [PATCH v3] [REPOST] vepa: parsing for 802.1Qb{g|h} XML
by Stefan Berger 19 May '10

19 May '10

This is a repost of this previously posted patch. I'd like someone to ACK it or let me know how to proceed with it. Thanks. Stefan Below is David Alan's original patch with lots of changes. In particular, it now parses the following two XML descriptions, one for 802.1Qbg and 802.1Qbh and stored the data internally. The actual triggering of the switch setup protocol has not been implemented here but the relevant code to do that should go into the functions associatePortProfileId() and disassociatePortProfileId(). <interface type='direct'> <source dev='static' mode='vepa'/> <model type='virtio'/> <vsi type='802.1Qbg'> <parameters managerid='12' typeid='0x123456' typeidversion='1' instanceid='fa9b7fff-b0a0-4893-8e0e-beef4ff18f8f'/> </vsi> <filterref filter='clean-traffic'/> </interface> <interface type='direct'> <source dev='static' mode='vepa'/> <model type='virtio'/> <vsi type='802.1Qbh'> <parameters profileid='my_profile'/> </vsi> </interface> I'd suggest to use this patch as a base for triggering the setup protocol with the 802.1Qb{g|h} switch. Changes from V2 to V3: - if instance ID UUID is not supplied it will automatically be generated - adapted schema to make instance ID UUID optional - added test case Some of the changes from V1 to V2: - parser and XML generator have been separated into their own functions so they can be re-used elsewhere (passthrough case for example) - Adapted XML parser and generator support the above shown type (802.1Qbg, 802.1Qbh). - Adapted schema to above XML - Adapted test XML to above XML - Passing through the VM's UUID which seems to be necessary for 802.1Qbh -- sorry no host UUID - adding virtual function ID to association function, in case it's necessary to use (for SR-IOV) Signed-off-by: Stefan Berger <stefanb(a)us.ibm.com> >From a945107f047c7cd71f9c1b74fd74c47d8cdc3670 Mon Sep 17 00:00:00 2001 From: David Allan <dallan(a)redhat.com> Date: Fri, 12 Mar 2010 13:25:04 -0500 Subject: [PATCH 1/1] POC of port profile id support * Modified schema per DanPB's feedback * Added test for modified schema --- docs/schemas/domain.rng | 69 ++++++++++++++ src/conf/domain_conf.c | 155 +++++++++++++++++++++++++++++++++ src/conf/domain_conf.h | 35 +++++++ src/qemu/qemu_conf.c | 17 +-- src/qemu/qemu_conf.h | 5 - src/qemu/qemu_driver.c | 17 +-- src/util/macvtap.c | 150 ++++++++++++++++++++++++++++--- src/util/macvtap.h | 10 +- tests/domainschemadata/portprofile.xml | 36 +++++++ 9 files changed, 446 insertions(+), 48 deletions(-) create mode 100644 tests/domainschemadata/portprofile.xml Index: libvirt-acl/docs/schemas/domain.rng =================================================================== --- libvirt-acl.orig/docs/schemas/domain.rng +++ libvirt-acl/docs/schemas/domain.rng @@ -817,6 +817,9 @@ </optional> <empty/> </element> + <optional> + <ref name="vsiProfile"/> + </optional> <ref name="interface-options"/> </interleave> </group> @@ -902,6 +905,45 @@ </optional> </interleave> </define> + <define name="vsiProfile"> + <choice> + <group> + <element name="vsi"> + <attribute name="type"> + <value>802.1Qbg</value> + </attribute> + <element name="parameters"> + <attribute name="managerid"> + <ref name="uint8range"/> + </attribute> + <attribute name="typeid"> + <ref name="uint24range"/> + </attribute> + <attribute name="typeidversion"> + <ref name="uint8range"/> + </attribute> + <optional> + <attribute name="instanceid"> + <ref name="UUID"/> + </attribute> + </optional> + </element> + </element> + </group> + <group> + <element name="vsi"> + <attribute name="type"> + <value>802.1Qbh</value> + </attribute> + <element name="parameters"> + <attribute name="profileid"> + <ref name="vsiProfileID"/> + </attribute> + </element> + </element> + </group> + </choice> + </define>  @@ -1769,4 +1811,31 @@ <param name="pattern">[a-zA-Z0-9_\.:]+</param> </data> </define> + <define name="uint8range"> + <choice> + <data type="string"> + <param name="pattern">0x[0-9a-fA-F]{1,2}</param> + </data> + <data type="int"> + <param name="minInclusive">0</param> + <param name="maxInclusive">255</param> + </data> + </choice> + </define> + <define name="uint24range"> + <choice> + <data type="string"> + <param name="pattern">0x[0-9a-fA-F]{1,6}</param> + </data> + <data type="int"> + <param name="minInclusive">0</param> + <param name="maxInclusive">16777215</param> + </data> + </choice> + </define> + <define name="vsiProfileID"> + <data type="string"> + <param name="maxLength">39</param> + </data> + </define> </grammar> Index: libvirt-acl/src/conf/domain_conf.c =================================================================== --- libvirt-acl.orig/src/conf/domain_conf.c +++ libvirt-acl/src/conf/domain_conf.c @@ -242,6 +242,11 @@ VIR_ENUM_IMPL(virDomainNetdevMacvtap, VI "private", "bridge") +VIR_ENUM_IMPL(virVSI, VIR_VSI_TYPE_LAST, + "none", + "802.1Qbg", + "802.1Qbh") + VIR_ENUM_IMPL(virDomainClockOffset, VIR_DOMAIN_CLOCK_OFFSET_LAST, "utc", "localtime", @@ -1807,6 +1812,145 @@ isValidIfname(const char *ifname) { } +static void +virVSIProfileDefParseXML(xmlNodePtr node, + virVSIProfileDefPtr vsi) +{ + char *vsiType; + char *vsiManagerID = NULL; + char *vsiTypeID = NULL; + char *vsiTypeIDVersion = NULL; + char *vsiInstanceID = NULL; + char *vsiProfileID = NULL; + xmlNodePtr cur = node->children; + + vsiType = virXMLPropString(node, "type"); + if (!vsiType) + return; + + while (cur != NULL) { + if (xmlStrEqual(cur->name, BAD_CAST "parameters")) { + + vsiManagerID = virXMLPropString(cur, "managerid"); + vsiTypeID = virXMLPropString(cur, "typeid"); + vsiTypeIDVersion = virXMLPropString(cur, "typeidversion"); + vsiInstanceID = virXMLPropString(cur, "instanceid"); + vsiProfileID = virXMLPropString(cur, "profileid"); + + break; + } + + cur = cur->next; + } + + vsi->vsiType = VIR_VSI_NONE; + + switch (virVSITypeFromString(vsiType)) { + + case VIR_VSI_8021QBG: + if (vsiManagerID != NULL && vsiTypeID != NULL && + vsiTypeIDVersion != NULL) { + unsigned int val; + + if ((virStrToLong_ui(vsiManagerID, NULL, 10, &val) && + virStrToLong_ui(vsiManagerID, NULL, 16, &val) ) || + val > 0xff) + break; + + vsi->u.vsi8021Qbg.managerID = (uint8_t)val; + + if ((virStrToLong_ui(vsiTypeID, NULL, 10, &val) && + virStrToLong_ui(vsiTypeID, NULL, 16, &val) ) || + val > 0xffffff) + break; + + vsi->u.vsi8021Qbg.typeID = (uint32_t)val; + + if ((virStrToLong_ui(vsiTypeIDVersion, NULL, 10, &val) && + virStrToLong_ui(vsiTypeIDVersion, NULL, 16, &val) ) || + val > 0xff) + break; + + vsi->u.vsi8021Qbg.typeIDVersion = (uint8_t)val; + + if (vsiInstanceID != NULL) { + if (virUUIDParse(vsiInstanceID, vsi->u.vsi8021Qbg.instanceID)) + break; + } else { + if (virUUIDGenerate(vsi->u.vsi8021Qbg.instanceID)) + break; + } + + vsi->vsiType = VIR_VSI_8021QBG; + } + break; + + case VIR_VSI_8021QBH: + if (vsiProfileID != NULL) { + if (virStrcpyStatic(vsi->u.vsi8021Qbh.profileID, + vsiProfileID) != NULL) + vsi->vsiType = VIR_VSI_8021QBH; + } + break; + + + default: + case VIR_VSI_NONE: + case VIR_VSI_TYPE_LAST: + break; + } + + VIR_FREE(vsiManagerID); + VIR_FREE(vsiTypeID); + VIR_FREE(vsiTypeIDVersion); + VIR_FREE(vsiInstanceID); + VIR_FREE(vsiProfileID); + VIR_FREE(vsiType); +} + + +static void +virVSIProfileFormat(virBufferPtr buf, virVSIProfileDefPtr vsi, + const char *indent) +{ + char uuidstr[VIR_UUID_STRING_BUFLEN]; + + if (vsi->vsiType == VIR_VSI_NONE) + return; + + virBufferVSprintf(buf, "%s<vsi type='%s'>\n", + indent, virVSITypeToString(vsi->vsiType)); + + switch (vsi->vsiType) { + case VIR_VSI_NONE: + case VIR_VSI_TYPE_LAST: + break; + + case VIR_VSI_8021QBG: + virUUIDFormat(vsi->u.vsi8021Qbg.instanceID, + uuidstr); + virBufferVSprintf(buf, + "%s <parameters managerid='%d' typeid='%d' " + "typeidversion='%d' instanceid='%s'/>\n", + indent, + vsi->u.vsi8021Qbg.managerID, + vsi->u.vsi8021Qbg.typeID, + vsi->u.vsi8021Qbg.typeIDVersion, + uuidstr); + break; + + case VIR_VSI_8021QBH: + virBufferVSprintf(buf, + "%s <parameters profileid='%s'/>\n", + indent, + vsi->u.vsi8021Qbh.profileID); + break; + } + + virBufferVSprintf(buf, "%s</vsi>\n", indent); +} + + /* Parse the XML definition for a network interface * @param node XML nodeset to parse for net definition * @return 0 on success, -1 on failure @@ -1832,6 +1976,8 @@ virDomainNetDefParseXML(virCapsPtr caps, char *devaddr = NULL; char *mode = NULL; virNWFilterHashTablePtr filterparams = NULL; + virVSIProfileDef vsi; + bool vsiParsed = false; if (VIR_ALLOC(def) < 0) { virReportOOMError(); @@ -1873,6 +2019,11 @@ virDomainNetDefParseXML(virCapsPtr caps, xmlStrEqual(cur->name, BAD_CAST "source")) { dev = virXMLPropString(cur, "dev"); mode = virXMLPropString(cur, "mode"); + } else if ((vsiParsed == false) && + (def->type == VIR_DOMAIN_NET_TYPE_DIRECT) && + xmlStrEqual(cur->name, BAD_CAST "vsi")) { + virVSIProfileDefParseXML(cur, &vsi); + vsiParsed = true; } else if ((network == NULL) && ((def->type == VIR_DOMAIN_NET_TYPE_SERVER) || (def->type == VIR_DOMAIN_NET_TYPE_CLIENT) || @@ -2049,6 +2200,8 @@ virDomainNetDefParseXML(virCapsPtr caps, } else def->data.direct.mode = VIR_DOMAIN_NETDEV_MACVTAP_MODE_VEPA; + def->data.direct.vsiProfile = vsi; + def->data.direct.linkdev = dev; dev = NULL; @@ -5141,6 +5294,8 @@ virDomainNetDefFormat(virBufferPtr buf, virBufferVSprintf(buf, " mode='%s'", virDomainNetdevMacvtapTypeToString(def->data.direct.mode)); virBufferAddLit(buf, "/>\n"); + virVSIProfileFormat(buf, &def->data.direct.vsiProfile, + " "); break; case VIR_DOMAIN_NET_TYPE_USER: Index: libvirt-acl/src/conf/domain_conf.h =================================================================== --- libvirt-acl.orig/src/conf/domain_conf.h +++ libvirt-acl/src/conf/domain_conf.h @@ -259,6 +259,39 @@ enum virDomainNetdevMacvtapType { }; +enum virVSIType { + VIR_VSI_NONE, + VIR_VSI_8021QBG, + VIR_VSI_8021QBH, + + VIR_VSI_TYPE_LAST, +}; + +# ifdef IFLA_VF_PORT_PROFILE_MAX +# define LIBVIRT_IFLA_VF_PORT_PROFILE_MAX IFLA_VF_PORT_PROFILE_MAX +# else +# define LIBVIRT_IFLA_VF_PORT_PROFILE_MAX 40 +# endif + +/* profile data for macvtap (VEPA) */ +typedef struct _virVSIProfileDef virVSIProfileDef; +typedef virVSIProfileDef *virVSIProfileDefPtr; +struct _virVSIProfileDef { + enum virVSIType vsiType; + union { + struct { + uint8_t managerID; + uint32_t typeID; // 24 bit valid + uint8_t typeIDVersion; + unsigned char instanceID[VIR_UUID_BUFLEN]; + } vsi8021Qbg; + struct { + char profileID[LIBVIRT_IFLA_VF_PORT_PROFILE_MAX]; + } vsi8021Qbh; + } u; +}; + + /* Stores the virtual network interface configuration */ typedef struct _virDomainNetDef virDomainNetDef; typedef virDomainNetDef *virDomainNetDefPtr; @@ -290,6 +323,7 @@ struct _virDomainNetDef { struct { char *linkdev; int mode; + virVSIProfileDef vsiProfile; } direct; } data; char *ifname; @@ -1089,6 +1123,7 @@ VIR_ENUM_DECL(virDomainSeclabel) VIR_ENUM_DECL(virDomainClockOffset) VIR_ENUM_DECL(virDomainNetdevMacvtap) +VIR_ENUM_DECL(virVSI) VIR_ENUM_DECL(virDomainTimerName) VIR_ENUM_DECL(virDomainTimerTrack) Index: libvirt-acl/src/util/macvtap.c =================================================================== --- libvirt-acl.orig/src/util/macvtap.c +++ libvirt-acl/src/util/macvtap.c @@ -43,6 +43,7 @@ # include "util.h" # include "memory.h" +# include "logging.h" # include "macvtap.h" # include "interface.h" # include "conf/domain_conf.h" @@ -570,36 +571,127 @@ configMacvtapTap(int tapfd, int vnet_hdr /** + * associatePortProfile + * + * @linkdev: the link dev in case of macvtap + * @mac: the MAC address of the interface + * @mode: The vepa mode (private, bridge or vepa) + * @vsi: pointer to the object holding port profile parameters + * @vf: virtual function number, -1 if to be ignored + * @vmuuid : the UUID of the virtual machine + * + * Associate a port on a swtich with a profile. This function + * may notify a kernel driver or an external daemon to run + * the setup protocol. If profile parameters were not supplied + * by the user, then this function returns without doing + * anything. + * + * Returns 0 in case of success, != 0 otherwise with error + * having been reported. + */ +static int +associatePortProfileId(const char *linkdev, + const unsigned char *mac, + int mode, + const virVSIProfileDefPtr vsi, + int vf, + const unsigned char *vmuuid) +{ + int rc = 0; + VIR_DEBUG("Associating port profile '%p' on link device '%s' mode %d ", + vsi, linkdev, mode); + (void)mac; + (void)vf; + (void)vmuuid; + + switch (vsi->vsiType) { + case VIR_VSI_NONE: + case VIR_VSI_TYPE_LAST: + break; + + case VIR_VSI_8021QBG: + rc = -1; + break; + + case VIR_VSI_8021QBH: + rc = -1; + break; + } + + return rc; +} + + +/** + * disassociatePortProfile + * + * @linkdev: The link dev in case of a macvtap device + * @mac: The MAC address of the interface + * @vsi: point to object holding port profile parameters + * + * Returns 0 in case of success, != 0 otherwise with error + * having been reported. + */ +static int +disassociatePortProfileId(const char *linkdev, + const unsigned char *mac, + const virVSIProfileDefPtr vsi) +{ + int rc = 0; + VIR_DEBUG("Disassociating port profile id '%p' on link device '%s' ", + vsi, linkdev); + (void)mac; + + switch (vsi->vsiType) { + case VIR_VSI_NONE: + case VIR_VSI_TYPE_LAST: + break; + + case VIR_VSI_8021QBG: + rc = -1; + break; + + case VIR_VSI_8021QBH: + rc = -1; + break; + } + + return rc; +} + + +/** * openMacvtapTap: * Create an instance of a macvtap device and open its tap character * device. * @tgifname: Interface name that the macvtap is supposed to have. May * be NULL if this function is supposed to choose a name - * @macaddress: The MAC address for the macvtap device - * @linkdev: The interface name of the NIC to connect to the external bridge - * @mode_str: String describing the mode. Valid are 'bridge', 'vepa' and - * 'private'. + * @net: pointer to the virDomainNetDef object describing the direct + * type if an interface * @res_ifname: Pointer to a string pointer where the actual name of the * interface will be stored into if everything succeeded. It is up * to the caller to free the string. + * @vnet_hdr: Whether to enable IFF_VNET_HDR on the interface + * @vmuuid: The (raw) UUID of the VM * * Returns file descriptor of the tap device in case of success, * negative value otherwise with error reported. * + * Open a macvtap device and trigger the switch setup protocol + * if valid port profile parameters were provided. */ int openMacvtapTap(const char *tgifname, - const unsigned char *macaddress, - const char *linkdev, - int mode, + virDomainNetDefPtr net, char **res_ifname, - int vnet_hdr) + int vnet_hdr, + const unsigned char *vmuuid) { const char *type = "macvtap"; int c, rc; char ifname[IFNAMSIZ]; int retries, do_retry = 0; - uint32_t macvtapMode = macvtapModeFromInt(mode); + uint32_t macvtapMode = macvtapModeFromInt(net->data.direct.mode); const char *cr_ifname; int ifindex; @@ -616,7 +708,7 @@ openMacvtapTap(const char *tgifname, return -1; } cr_ifname = tgifname; - rc = link_add(type, macaddress, 6, tgifname, linkdev, + rc = link_add(type, net->mac, 6, tgifname, net->data.direct.linkdev, macvtapMode, &do_retry); if (rc) return -1; @@ -626,7 +718,8 @@ create_name: for (c = 0; c < 8192; c++) { snprintf(ifname, sizeof(ifname), MACVTAP_NAME_PATTERN, c); if (ifaceGetIndex(false, ifname, &ifindex) == ENODEV) { - rc = link_add(type, macaddress, 6, ifname, linkdev, + rc = link_add(type, net->mac, 6, ifname, + net->data.direct.linkdev, macvtapMode, &do_retry); if (rc == 0) break; @@ -639,6 +732,15 @@ create_name: cr_ifname = ifname; } + rc = associatePortProfileId(net->data.direct.linkdev, + net->mac, + net->data.direct.mode, + &net->data.direct.vsiProfile, + -1, + vmuuid); + if (rc != 0) + goto link_del_exit; + rc = ifaceUp(cr_ifname); if (rc != 0) { virReportSystemError(errno, @@ -647,7 +749,7 @@ create_name: "MAC address"), cr_ifname); rc = -1; - goto link_del_exit; + goto disassociate_exit; } rc = openTap(cr_ifname, 10); @@ -656,14 +758,19 @@ create_name: if (configMacvtapTap(rc, vnet_hdr) < 0) { close(rc); rc = -1; - goto link_del_exit; + goto disassociate_exit; } *res_ifname = strdup(cr_ifname); } else - goto link_del_exit; + goto disassociate_exit; return rc; +disassociate_exit: + disassociatePortProfileId(net->data.direct.linkdev, + net->mac, + &net->data.direct.vsiProfile); + link_del_exit: link_del(cr_ifname); @@ -673,14 +780,21 @@ link_del_exit: /** * delMacvtap: - * @ifname : The name of the macvtap interface + * @net: pointer to virDomainNetDef object * - * Delete an interface given its name. + * Delete an interface given its name. Disassociate + * it with the switch if port profile parameters + * were provided. */ void -delMacvtap(const char *ifname) +delMacvtap(virDomainNetDefPtr net) { - link_del(ifname); + if (net->ifname) { + disassociatePortProfileId(net->data.direct.linkdev, + net->mac, + &net->data.direct.vsiProfile); + link_del(net->ifname); + } } #endif Index: libvirt-acl/src/util/macvtap.h =================================================================== --- libvirt-acl.orig/src/util/macvtap.h +++ libvirt-acl/src/util/macvtap.h @@ -27,15 +27,15 @@ # if defined(WITH_MACVTAP) # include "internal.h" +# include "conf/domain_conf.h" int openMacvtapTap(const char *ifname, - const unsigned char *macaddress, - const char *linkdev, - int mode, + virDomainNetDefPtr net, char **res_ifname, - int vnet_hdr); + int vnet_hdr, + const unsigned char *vmuuid); -void delMacvtap(const char *ifname); +void delMacvtap(virDomainNetDefPtr net); # endif /* WITH_MACVTAP */ Index: libvirt-acl/tests/domainschemadata/portprofile.xml =================================================================== --- /dev/null +++ libvirt-acl/tests/domainschemadata/portprofile.xml @@ -0,0 +1,36 @@ +<domain type='lxc'> + <name>portprofile</name> + <uuid>00000000-0000-0000-0000-000000000000</uuid> + <memory>1048576</memory> + <os> + <type>exe</type> + <init>/sh</init> + </os> + <devices> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + <vsi type='802.1Qbg'> + <parameters managerid='12' typeid='1193046' typeidversion='1' + instanceid='fa9b7fff-b0a0-4893-8e0e-beef4ff18f8f'/> + </vsi> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + <vsi type='802.1Qbg'> + <parameters managerid='12' typeid='1193046' typeidversion='1'/> + </vsi> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + <vsi type='802.1Qbh'> + <parameters profileid='my_profile'/> + </vsi> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + </interface> + <interface type='direct'> + <source dev='eth0' mode='vepa'/> + </interface> + </devices> +</domain> Index: libvirt-acl/src/qemu/qemu_conf.h =================================================================== --- libvirt-acl.orig/src/qemu/qemu_conf.h +++ libvirt-acl/src/qemu/qemu_conf.h @@ -271,9 +271,8 @@ qemudOpenVhostNet(virDomainNetDefPtr net int qemudPhysIfaceConnect(virConnectPtr conn, struct qemud_driver *driver, virDomainNetDefPtr net, - char *linkdev, - int brmode, - unsigned long long qemuCmdFlags); + unsigned long long qemuCmdFlags, + const unsigned char *vmuuid); int qemudProbeMachineTypes (const char *binary, virCapsGuestMachinePtr **machines, Index: libvirt-acl/src/qemu/qemu_driver.c =================================================================== --- libvirt-acl.orig/src/qemu/qemu_driver.c +++ libvirt-acl/src/qemu/qemu_driver.c @@ -3585,10 +3585,8 @@ static void qemudShutdownVMDaemon(struct def = vm->def; for (i = 0; i < def->nnets; i++) { virDomainNetDefPtr net = def->nets[i]; - if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) { - if (net->ifname) - delMacvtap(net->ifname); - } + if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) + delMacvtap(net); } #endif @@ -7175,9 +7173,8 @@ static int qemudDomainAttachNetDevice(vi } if ((tapfd = qemudPhysIfaceConnect(conn, driver, net, - net->data.direct.linkdev, - net->data.direct.mode, - qemuCmdFlags)) < 0) + qemuCmdFlags, + vm->def->uuid)) < 0) return -1; } @@ -8146,10 +8143,8 @@ qemudDomainDetachNetDevice(struct qemud_ virNWFilterTearNWFilter(detach); #if WITH_MACVTAP - if (detach->type == VIR_DOMAIN_NET_TYPE_DIRECT) { - if (detach->ifname) - delMacvtap(detach->ifname); - } + if (detach->type == VIR_DOMAIN_NET_TYPE_DIRECT) + delMacvtap(detach); #endif if ((driver->macFilter) && (detach->ifname != NULL)) { Index: libvirt-acl/src/qemu/qemu_conf.c =================================================================== --- libvirt-acl.orig/src/qemu/qemu_conf.c +++ libvirt-acl/src/qemu/qemu_conf.c @@ -1465,9 +1465,8 @@ int qemudPhysIfaceConnect(virConnectPtr conn, struct qemud_driver *driver, virDomainNetDefPtr net, - char *linkdev, - int brmode, - unsigned long long qemuCmdFlags) + unsigned long long qemuCmdFlags, + const unsigned char *vmuuid) { int rc; #if WITH_MACVTAP @@ -1479,8 +1478,7 @@ qemudPhysIfaceConnect(virConnectPtr conn net->model && STREQ(net->model, "virtio")) vnet_hdr = 1; - rc = openMacvtapTap(net->ifname, net->mac, linkdev, brmode, - &res_ifname, vnet_hdr); + rc = openMacvtapTap(net->ifname, net, &res_ifname, vnet_hdr, vmuuid); if (rc >= 0) { VIR_FREE(net->ifname); net->ifname = res_ifname; @@ -1500,15 +1498,13 @@ qemudPhysIfaceConnect(virConnectPtr conn if (err) { close(rc); rc = -1; - delMacvtap(net->ifname); + delMacvtap(net); } } } #else (void)conn; (void)net; - (void)linkdev; - (void)brmode; (void)qemuCmdFlags; (void)driver; qemuReportError(VIR_ERR_INTERNAL_ERROR, @@ -4130,9 +4126,8 @@ int qemudBuildCommandLine(virConnectPtr goto no_memory; } else if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) { int tapfd = qemudPhysIfaceConnect(conn, driver, net, - net->data.direct.linkdev, - net->data.direct.mode, - qemuCmdFlags); + qemuCmdFlags, + def->uuid); if (tapfd < 0) goto error;

3 3

[libvirt] [PATCH] correct typo: s/VIR_MIGRATE_TUNNELLED/VIR_MIGRATE_TUNNELED/, ...
by Jim Meyering 19 May '10

19 May '10

I noticed a typo in a public interface. IMHO it's well worth fixing, so propose this: (imagine someone searching for all occurrences of "tunneled" with the proper spelling. They would miss this symbol.) >From b9a1ea6c9e3d4e5150c39868b430f184c10b2660 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Tue, 18 May 2010 18:28:17 +0200 Subject: [PATCH] correct typo: s/VIR_MIGRATE_TUNNELLED/VIR_MIGRATE_TUNNELED/, ... in public interface, but retain the original name for compatibility Correct all uses. * include/libvirt/libvirt.h.in [enum virDomainMigrateFlags] (VIR_MIGRATE_TUNNELED): Rename from spelling-error VIR_MIGRATE_TUNNELLED. (VIR_MIGRATE_TUNNELLED): Define, to map misspelled name to the new name. * src/libvirt.c (virDomainMigrate): Use correct spelling. * src/qemu/qemu_driver.c: Likewise. * tools/virsh.c (cmdMigrate): Likewise. --- include/libvirt/libvirt.h.in | 7 +++++-- src/libvirt.c | 10 +++++----- src/qemu/qemu_driver.c | 10 +++++----- tools/virsh.c | 2 +- 4 files changed, 16 insertions(+), 13 deletions(-) diff --git a/include/libvirt/libvirt.h.in b/include/libvirt/libvirt.h.in index 838028d..6e8e52e 100644 --- a/include/libvirt/libvirt.h.in +++ b/include/libvirt/libvirt.h.in @@ -4,7 +4,7 @@ * Description: Provides the interfaces of the libvirt library to handle * virtualized domains * - * Copy: Copyright (C) 2005,2006 Red Hat, Inc. + * Copy: Copyright (C) 2005,2006,2010 Red Hat, Inc. * * See COPYING.LIB for the License of this software * @@ -407,7 +407,7 @@ typedef enum { typedef enum { VIR_MIGRATE_LIVE = (1 << 0), /* live migration */ VIR_MIGRATE_PEER2PEER = (1 << 1), /* direct source -> dest host control channel */ - VIR_MIGRATE_TUNNELLED = (1 << 2), /* tunnel migration data over libvirtd connection */ + VIR_MIGRATE_TUNNELED = (1 << 2), /* tunnel migration data over libvirtd connection */ VIR_MIGRATE_PERSIST_DEST = (1 << 3), /* persist the VM on the destination */ VIR_MIGRATE_UNDEFINE_SOURCE = (1 << 4), /* undefine the VM on the source */ VIR_MIGRATE_PAUSED = (1 << 5), /* pause on remote side */ @@ -417,6 +417,9 @@ typedef enum { } virDomainMigrateFlags; +/* Legacy typo. */ +#define VIR_MIGRATE_TUNNELLED VIR_MIGRATE_TUNNELED + /* Domain migration. */ virDomainPtr virDomainMigrate (virDomainPtr domain, virConnectPtr dconn, unsigned long flags, const char *dname, diff --git a/src/libvirt.c b/src/libvirt.c index eb05337..c10db19 100644 --- a/src/libvirt.c +++ b/src/libvirt.c @@ -3421,14 +3421,14 @@ virDomainMigrateDirect (virDomainPtr domain, * Flags may be one of more of the following: * VIR_MIGRATE_LIVE Do not pause the VM during migration * VIR_MIGRATE_PEER2PEER Direct connection between source & destination hosts - * VIR_MIGRATE_TUNNELLED Tunnel migration data over the libvirt RPC channel + * VIR_MIGRATE_TUNNELED Tunnel migration data over the libvirt RPC channel * VIR_MIGRATE_PERSIST_DEST If the migration is successful, persist the domain * on the destination host. * VIR_MIGRATE_UNDEFINE_SOURCE If the migration is successful, undefine the * domain on the source host. * VIR_MIGRATE_PAUSED Leave the domain suspended on the remote side. * - * VIR_MIGRATE_TUNNELLED requires that VIR_MIGRATE_PEER2PEER be set. + * VIR_MIGRATE_TUNNELED requires that VIR_MIGRATE_PEER2PEER be set. * Applications using the VIR_MIGRATE_PEER2PEER flag will probably * prefer to invoke virDomainMigrateToURI, avoiding the need to * open connection to the destination host themselves. @@ -3530,7 +3530,7 @@ virDomainMigrate (virDomainPtr domain, goto error; } } else { - if (flags & VIR_MIGRATE_TUNNELLED) { + if (flags & VIR_MIGRATE_TUNNELED) { virLibConnError(domain->conn, VIR_ERR_OPERATION_INVALID, _("cannot perform tunnelled migration without using peer2peer flag")); goto error; @@ -3579,7 +3579,7 @@ error: * Flags may be one of more of the following: * VIR_MIGRATE_LIVE Do not pause the VM during migration * VIR_MIGRATE_PEER2PEER Direct connection between source & destination hosts - * VIR_MIGRATE_TUNNELLED Tunnel migration data over the libvirt RPC channel + * VIR_MIGRATE_TUNNELED Tunnel migration data over the libvirt RPC channel * VIR_MIGRATE_PERSIST_DEST If the migration is successful, persist the domain * on the destination host. * VIR_MIGRATE_UNDEFINE_SOURCE If the migration is successful, undefine the @@ -3598,7 +3598,7 @@ error: * must be a valid libvirt connection URI, by which the source * libvirt driver can connect to the destination libvirt. * - * VIR_MIGRATE_TUNNELLED requires that VIR_MIGRATE_PEER2PEER be set. + * VIR_MIGRATE_TUNNELED requires that VIR_MIGRATE_PEER2PEER be set. * * If a hypervisor supports renaming domains during migration, * the dname parameter specifies the new name for the domain. diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 609fabe..246ad9e 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -9880,7 +9880,7 @@ qemudDomainMigratePrepareTunnel(virConnectPtr dconn, "%s", _("no domain XML passed")); goto cleanup; } - if (!(flags & VIR_MIGRATE_TUNNELLED)) { + if (!(flags & VIR_MIGRATE_TUNNELED)) { qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("PrepareTunnel called but no TUNNELLED flag set")); goto cleanup; @@ -10038,9 +10038,9 @@ qemudDomainMigratePrepare2 (virConnectPtr dconn, *uri_out = NULL; qemuDriverLock(driver); - if (flags & VIR_MIGRATE_TUNNELLED) { + if (flags & VIR_MIGRATE_TUNNELED) { /* this is a logical error; we never should have gotten here with - * VIR_MIGRATE_TUNNELLED set + * VIR_MIGRATE_TUNNELED set */ qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("Tunnelled migration requested but invalid RPC method called")); @@ -10604,7 +10604,7 @@ static int doPeer2PeerMigrate(virDomainPtr dom, goto cleanup; } - if (flags & VIR_MIGRATE_TUNNELLED) + if (flags & VIR_MIGRATE_TUNNELED) ret = doTunnelMigrate(dom, driver, dconn, vm, dom_xml, uri, flags, dname, resource); else ret = doNonTunnelMigrate(dom, driver, dconn, vm, dom_xml, uri, flags, dname, resource); @@ -10665,7 +10665,7 @@ qemudDomainMigratePerform (virDomainPtr dom, goto endjob; } - if ((flags & (VIR_MIGRATE_TUNNELLED | VIR_MIGRATE_PEER2PEER))) { + if ((flags & (VIR_MIGRATE_TUNNELED | VIR_MIGRATE_PEER2PEER))) { if (doPeer2PeerMigrate(dom, driver, vm, uri, flags, dname, resource) < 0) /* doPeer2PeerMigrate already set the error, so just get out */ goto endjob; diff --git a/tools/virsh.c b/tools/virsh.c index 4930ad7..9d9cf5d 100644 --- a/tools/virsh.c +++ b/tools/virsh.c @@ -2898,7 +2898,7 @@ cmdMigrate (vshControl *ctl, const vshCmd *cmd) if (vshCommandOptBool (cmd, "p2p")) flags |= VIR_MIGRATE_PEER2PEER; if (vshCommandOptBool (cmd, "tunnelled")) - flags |= VIR_MIGRATE_TUNNELLED; + flags |= VIR_MIGRATE_TUNNELED; if (vshCommandOptBool (cmd, "persistent")) flags |= VIR_MIGRATE_PERSIST_DEST; -- 1.7.1.250.g7d1e8

3 4

[libvirt] reviewing of patches
by Stephen Shaw 18 May '10

18 May '10

I was wondering after watching this mailing list fro the last few weeks if you guys have maybe thought about using something like reviewboard. We have been using it for our team for the past several months and have really liked it. I imagine it would cut down on the volume of traffic and make giving inline comments easier. It also tests to make sure the patch still applies when you go to review it. Here is a link to the instance that we use for our project: http://reviews.mono-a11y.org/dashboard/ Cheers, Stephen

1 0

[libvirt] [PATCH] Fix NULL dereference in remoteDomainMigratePrepare2
by jdenemar＠redhat.com 18 May '10

18 May '10

From: Jiri Denemark <jdenemar(a)redhat.com> --- src/remote/remote_driver.c | 8 ++++++-- 1 files changed, 6 insertions(+), 2 deletions(-) diff --git a/src/remote/remote_driver.c b/src/remote/remote_driver.c index 990bfce..c62e3d6 100644 --- a/src/remote/remote_driver.c +++ b/src/remote/remote_driver.c @@ -2849,8 +2849,12 @@ remoteDomainMigratePrepare2 (virConnectPtr dconn, goto done; if (ret.cookie.cookie_len > 0) { - *cookie = ret.cookie.cookie_val; /* Caller frees. */ - *cookielen = ret.cookie.cookie_len; + if (cookie && cookielen) { + *cookie = ret.cookie.cookie_val; /* Caller frees. */ + *cookielen = ret.cookie.cookie_len; + } else { + VIR_FREE(ret.cookie.cookie_val); + } } if (ret.uri_out) *uri_out = *ret.uri_out; /* Caller frees. */ -- 1.7.1

4 6

[libvirt] [PATCH] Add support for SSE4.1 and SSE4.2 CPU features
by Jiri Denemark 18 May '10

18 May '10

--- src/cpu/cpu_map.xml | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/src/cpu/cpu_map.xml b/src/cpu/cpu_map.xml index 30c28d7..084b879 100644 --- a/src/cpu/cpu_map.xml +++ b/src/cpu/cpu_map.xml @@ -126,6 +126,12 @@ <feature name='dca'>  <cpuid function='0x00000001' ecx='0x00040000'/> </feature> + <feature name='sse4.1'>  + <cpuid function='0x00000001' ecx='0x00080000'/> + </feature> + <feature name='sse4.2'>  + <cpuid function='0x00000001' ecx='0x00100000'/> + </feature> <feature name='x2apic'>  <cpuid function='0x00000001' ecx='0x00200000'/> </feature> -- 1.7.1

2 2

[libvirt] FYI, I've pushed a bunch of ACK'd patches
by Jim Meyering 18 May '10

18 May '10

I've pushed these: ebiptablesWriteToTempFile: don't close a negative file descriptor virDomainNetDefParseXML: avoid leak upon multiple "filterref" linuxNodeInfoCPUPopulate: avoid used-uninitialized via a test virNWFilterDefParseXML: avoid leak on error paths qemuMonitorTextMigrate: avoid leak on OOM-error path tests: do not ignore virInitialize failure python: don't ignore virInitialize failure in module initialization qemudDomainRestore: handle a case of virDomainSaveStatus failure ebtablesAddRemoveRule, iptablesAddRemoveRule: don't skip va_end do not ignore qemuMonitorAddDrive failure; make uses identical

1 0

[libvirt] [PATCH] virDomainNetDefParseXML: avoid leak upon multiple "filterref"
by Jim Meyering 18 May '10

18 May '10

The offending code below appears in this loop: virNWFilterHashTablePtr filterparams = NULL; ... cur = node->children; while (cur != NULL) { ... } so the first assignment works fine, but second and subsequent ones leak the buffer returned by each preceding virNWFilterParseParamAttributes call. >From 8659fb1ae879befe360e1ec7b8b62434c22698cd Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Tue, 18 May 2010 10:19:30 +0200 Subject: [PATCH] virDomainNetDefParseXML: avoid leak upon multiple "filterref" * src/conf/domain_conf.c (virDomainNetDefParseXML): Don't leak memory when parsing two or more "filterref" elements. --- src/conf/domain_conf.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 3e45f79..0c717f2 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -1905,6 +1905,7 @@ virDomainNetDefParseXML(virCapsPtr caps, model = virXMLPropString(cur, "type"); } else if (xmlStrEqual (cur->name, BAD_CAST "filterref")) { filter = virXMLPropString(cur, "filter"); + free(filterparams); filterparams = virNWFilterParseParamAttributes(cur); } else if ((flags & VIR_DOMAIN_XML_INTERNAL_STATUS) && xmlStrEqual(cur->name, BAD_CAST "state")) { -- 1.7.1.250.g7d1e8

3 3

[libvirt] [PATCH] tests: do not ignore virInitialize failure
by Jim Meyering 18 May '10

18 May '10

Simple... >From f5ee09ed08473478b3ea3135d51125fbf687e402 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Tue, 18 May 2010 12:32:39 +0200 Subject: [PATCH] tests: do not ignore virInitialize failure * tests/nodeinfotest.c (mymain): Do not ignore virInitialize failure. Most other callers of virInitialize test for failure. --- tests/nodeinfotest.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/tests/nodeinfotest.c b/tests/nodeinfotest.c index ff056b9..d3c500d 100644 --- a/tests/nodeinfotest.c +++ b/tests/nodeinfotest.c @@ -106,7 +106,8 @@ mymain(int argc, char **argv) return(EXIT_FAILURE); } - virInitialize(); + if (virInitialize() < 0) + return EXIT_FAILURE; for (i = 0 ; i < ARRAY_CARDINALITY(nodeData); i++) if (virtTestRun(nodeData[i], 1, linuxTestNodeInfo, nodeData[i]) != 0) -- 1.7.1.250.g7d1e8

3 5

[libvirt] [PATCH] ebtablesAddRemoveRule, iptablesAddRemoveRule: don't skip va_end
by Jim Meyering 18 May '10

18 May '10

Coverity spotted two missing uses of va_end: >From 4baa4228a74f640fe789914bd034e4c5b805cdfb Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Tue, 18 May 2010 14:42:33 +0200 Subject: [PATCH] ebtablesAddRemoveRule, iptablesAddRemoveRule: don't skip va_end * src/util/ebtables.c (ebtablesAddRemoveRule): Don't skip va_end(args) on an error path. * src/util/iptables.c (iptablesAddRemoveRule): Identical change. --- src/util/ebtables.c | 7 +++++-- src/util/iptables.c | 7 +++++-- 2 files changed, 10 insertions(+), 4 deletions(-) diff --git a/src/util/ebtables.c b/src/util/ebtables.c index e2b9608..f707756 100644 --- a/src/util/ebtables.c +++ b/src/util/ebtables.c @@ -207,15 +207,18 @@ ebtablesAddRemoveRule(ebtRules *rules, int action, const char *arg, ...) if (!(argv[n++] = strdup(arg))) goto error; va_start(args, arg); - while ((s = va_arg(args, const char *))) - if (!(argv[n++] = strdup(s))) + while ((s = va_arg(args, const char *))) { + if (!(argv[n++] = strdup(s))) { + va_end(args); goto error; + } + } va_end(args); if (!(rule = virArgvToString(&argv[command_idx]))) goto error; diff --git a/src/util/iptables.c b/src/util/iptables.c index 4f95a02..d06b857 100644 --- a/src/util/iptables.c +++ b/src/util/iptables.c @@ -134,15 +134,18 @@ iptablesAddRemoveRule(iptRules *rules, int action, const char *arg, ...) if (!(argv[n++] = strdup(arg))) goto error; va_start(args, arg); - while ((s = va_arg(args, const char *))) - if (!(argv[n++] = strdup(s))) + while ((s = va_arg(args, const char *))) { + if (!(argv[n++] = strdup(s))) { + va_end(args); goto error; + } + } va_end(args); if (virRun(argv, NULL) < 0) { retval = errno; goto error; -- 1.7.1.250.g7d1e8

2 1

[libvirt] [PATCH] qemudDomainRestore: handle a case of virDomainSaveStatus failure
by Jim Meyering 18 May '10

18 May '10

For each of the other uses of virDomainSaveStatus, the caller handles failure. Here it was ignored. At first I was inclined to simply "goto endjob;", like a few other uses in this file, but probing a bit, I found a few paths by which it could fail with no diagnostic whatsoever. And even if we've already emitted a diagnostic about some lower-level failure, it probably helps the user to know what high-level operation failed. >From af983f0c730fcecf90a8c948a7537095bc2e80e7 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Tue, 18 May 2010 14:07:18 +0200 Subject: [PATCH] qemudDomainRestore: handle a case of virDomainSaveStatus failure * src/qemu/qemu_driver.c (qemudDomainRestore): Don't ignore virDomainSaveStatus failure. --- src/qemu/qemu_driver.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 948ab5b..5649a20 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -6167,25 +6167,28 @@ static int qemudDomainRestore(virConnectPtr conn, if (header.was_running) { qemuDomainObjPrivatePtr priv = vm->privateData; qemuDomainObjEnterMonitorWithDriver(driver, vm); if (qemuMonitorStartCPUs(priv->mon, conn) < 0) { if (virGetLastError() == NULL) qemuReportError(VIR_ERR_OPERATION_FAILED, "%s", _("failed to resume domain")); qemuDomainObjExitMonitorWithDriver(driver,vm); goto endjob; } qemuDomainObjExitMonitorWithDriver(driver, vm); vm->state = VIR_DOMAIN_RUNNING; - virDomainSaveStatus(driver->caps, driver->stateDir, vm); + if (virDomainSaveStatus(driver->caps, driver->stateDir, vm) < 0) { + VIR_WARN("Failed to save status on vm %s", vm->def->name); + goto endjob; + } } ret = 0; endjob: if (vm && qemuDomainObjEndJob(vm) == 0) vm = NULL; cleanup: virDomainDefFree(def); VIR_FREE(xml); if (fd != -1) -- 1.7.1.250.g7d1e8

2 1

[libvirt] python module set-up ignores virInitialize failure
by Jim Meyering 18 May '10

18 May '10

I've just fixed code in a test that ignored virInitialize failure. Looking at all uses, I saw one other: in python/libvirt-override.c, where the initialization function ignores virInitialize failure: void #ifndef __CYGWIN__ initlibvirtmod #else initcygvirtmod #endif (void) { static int initialized = 0; if (initialized != 0) return; virInitialize(); /* initialize the python extension module */ Py_InitModule((char *) #ifndef __CYGWIN__ "libvirtmod" #else "cygvirtmod" #endif , libvirtMethods); initialized = 1; } Unfortunately, this function is public, so we can't change its signature. Any suggestions? For reference, here's the function definition. It shows that there are many ways in which virInitialize can fail, including its many registration functions: /** * virInitialize: * * Initialize the library. It's better to call this routine at startup * in multithreaded applications to avoid potential race when initializing * the library. * * Returns 0 in case of success, -1 in case of error */ int virInitialize(void) { if (initialized) return(0); initialized = 1; if (virThreadInitialize() < 0 || virErrorInitialize() < 0 || virRandomInitialize(time(NULL) ^ getpid())) return -1; gcry_control(GCRYCTL_SET_THREAD_CBS, &virTLSThreadImpl); gcry_check_version(NULL); virLogSetFromEnv(); DEBUG0("register drivers"); #if HAVE_WINSOCK2_H if (winsock_init () == -1) return -1; #endif if (!bindtextdomain(GETTEXT_PACKAGE, LOCALEBASEDIR)) return (-1); /* * Note that the order is important: the first ones have a higher * priority when calling virConnectOpen. */ #ifdef WITH_DRIVER_MODULES /* We don't care if any of these fail, because the whole point * is to allow users to only install modules they want to use. * If they try to open a connection for a module that * is not loaded they'll get a suitable error at that point */ virDriverLoadModule("test"); virDriverLoadModule("xen"); virDriverLoadModule("openvz"); virDriverLoadModule("vbox"); virDriverLoadModule("esx"); virDriverLoadModule("xenapi"); virDriverLoadModule("remote"); #else # ifdef WITH_TEST if (testRegister() == -1) return -1; # endif # ifdef WITH_XEN if (xenRegister () == -1) return -1; # endif # ifdef WITH_OPENVZ if (openvzRegister() == -1) return -1; # endif # ifdef WITH_PHYP if (phypRegister() == -1) return -1; # endif # ifdef WITH_VBOX if (vboxRegister() == -1) return -1; # endif # ifdef WITH_ESX if (esxRegister() == -1) return -1; # endif # ifdef WITH_XENAPI if (xenapiRegister() == -1) return -1; # endif # ifdef WITH_REMOTE if (remoteRegister () == -1) return -1; # endif #endif return(0); }

3 6

[libvirt] [PATCH] qemuMonitorTextMigrate: avoid leak on OOM-error path
by Jim Meyering 18 May '10

18 May '10

Oops. Nearly forgot to post this one: >From f1b58f1f7bd287b4a2157f62ebb63100b45a8b62 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Tue, 18 May 2010 12:17:23 +0200 Subject: [PATCH] qemuMonitorTextMigrate: avoid leak on OOM-error path * src/qemu/qemu_monitor_text.c (qemuMonitorTextMigrate): Also free "safedest" buffer when failing. --- src/qemu/qemu_monitor_text.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/src/qemu/qemu_monitor_text.c b/src/qemu/qemu_monitor_text.c index ae5d4d2..ec3d69d 100644 --- a/src/qemu/qemu_monitor_text.c +++ b/src/qemu/qemu_monitor_text.c @@ -1149,6 +1149,7 @@ static int qemuMonitorTextMigrate(qemuMonitorPtr mon, if (virBufferError(&extra)) { virBufferFreeAndReset(&extra); virReportOOMError(); + free(safedest); return -1; } if (virAsprintf(&cmd, "migrate %s\"%s\"", virBufferContentAndReset(&extra), safedest) < 0) { -- 1.7.1.250.g7d1e8

2 1

[libvirt] handling qemuMonitorAddDevice failure: missing drive_del function?
by Jim Meyering 18 May '10

18 May '10

In src/qemu/qemu_driver.c, coverity gripes (rightly) about this: 6912 qemuDomainObjEnterMonitorWithDriver(driver, vm); 6913 if (qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE) { 6914 ret = qemuMonitorAddDrive(priv->mon, drivestr); 6915 if (ret == 0) No check of the return value of "qemuMonitorAddDevice(priv->mon, devstr)". Calling function "qemuMonitorAddDevice" without checking return value. 6916 qemuMonitorAddDevice(priv->mon, devstr); 6917 /* XXX remove the drive upon fail */ 6918 } else { Does anyone have a preference on how to deal with it while we wait for a drive-removal function? I think it deserves at least a diagnostic. I suppose this comment is still relevant: if (ret == 0) ret = qemuMonitorAddDevice(priv->mon, devstr); /* XXX should call 'drive_del' on error but this does not exist yet */ This XXX marks the same problem -- though note that coverity could not possibly see this one.

2 3

[libvirt] [PATCH] Init script for suspending/resuming guests on shutdown/boot
by Jiri Denemark 18 May '10

18 May '10

Example output during shutdown: Running guests on default URI: console, rhel6-1, rhel5-64 Running guests on lxc:/// URI: lxc-shell Running guests on xen:/// URI: error: no hypervisor driver available for xen:/// error: failed to connect to the hypervisor Running guests on vbox+tcp://orkuz/system URI: no running guests. Suspending guests on default URI... Suspending console: done Suspending rhel6-1: done Suspending rhel5-64: done Suspending guests on lxc:/// URI... Suspending lxc-shell: error: Failed to save domain 9cba8bfb-56f4-6589-2d12-8a58c886dd3b state error: this function is not supported by the hypervisor: virDomainManagedSave Note, the "Suspending $guest: " shows progress during the suspend phase if domjobinfo gives meaningful output. Example output during boot: Resuming guests on default URI... Resuming guest rhel6-1: done Resuming guest rhel5-64: done Resuming guest console: done Resuming guests on lxc:/// URI... Resuming guest lxc-shell: already active Configuration used for generating the examples above: URIS='default lxc:/// xen:/// vbox+tcp://orkuz/system' The script uses /var/lib/libvirt/libvirt-guests files to note all active guest it should try to resume on next boot. It's content looks like: default 7f8b9d93-30e1-f0b9-47a7-cb408482654b 085b4c95-5da2-e8e1-712f-6ea6a4156af2 fb4d8360-5305-df3a-2da1-07d682891b8c lxc:/// 9cba8bfb-56f4-6589-2d12-8a58c886dd3b --- daemon/Makefile.am | 16 +++- daemon/libvirt-guests.init.in | 194 +++++++++++++++++++++++++++++++++++++++++ daemon/libvirt-guests.sysconf | 3 + 3 files changed, 209 insertions(+), 4 deletions(-) create mode 100644 daemon/libvirt-guests.init.in create mode 100644 daemon/libvirt-guests.sysconf diff --git a/daemon/Makefile.am b/daemon/Makefile.am index a82e9a9..ed469bf 100644 --- a/daemon/Makefile.am +++ b/daemon/Makefile.am @@ -29,6 +29,8 @@ EXTRA_DIST = \ libvirtd.lxc.logrotate.in \ libvirtd.uml.logrotate.in \ test_libvirtd.aug \ + libvirt-guests.init.in \ + libvirt-guests.sysconf \ $(AVAHI_SOURCES) \ $(DAEMON_SOURCES) @@ -216,21 +218,27 @@ install-logrotate: $(LOGROTATE_CONFS) $(INSTALL_DATA) libvirtd.uml.logrotate $(DESTDIR)$(sysconfdir)/logrotate.d/libvirtd.uml if LIBVIRT_INIT_SCRIPT_RED_HAT -install-init: libvirtd.init +install-init: libvirtd.init libvirt-guests.init mkdir -p $(DESTDIR)$(sysconfdir)/rc.d/init.d $(INSTALL_SCRIPT) libvirtd.init \ $(DESTDIR)$(sysconfdir)/rc.d/init.d/libvirtd + $(INSTALL_SCRIPT) libvirt-guests.init \ + $(DESTDIR)$(sysconfdir)/rc.d/init.d/libvirt-guests mkdir -p $(DESTDIR)$(sysconfdir)/sysconfig $(INSTALL_SCRIPT) $(srcdir)/libvirtd.sysconf \ $(DESTDIR)$(sysconfdir)/sysconfig/libvirtd + $(INSTALL_SCRIPT) $(srcdir)/libvirt-guests.sysconf \ + $(DESTDIR)$(sysconfdir)/sysconfig/libvirt-guests uninstall-init: rm -f $(DESTDIR)$(sysconfdir)/rc.d/init.d/libvirtd \ - $(DESTDIR)$(sysconfdir)/sysconfig/libvirtd + $(DESTDIR)$(sysconfdir)/sysconfig/libvirtd \ + $(DESTDIR)$(sysconfdir)/rc.d/init.d/libvirt-guests \ + $(DESTDIR)$(sysconfdir)/sysconfig/libvirt-guests -BUILT_SOURCES += libvirtd.init +BUILT_SOURCES += libvirtd.init libvirt-guests.init -libvirtd.init: libvirtd.init.in +%.init: %.init.in $(AM_V_GEN)sed \ -e s!\@localstatedir\@!@localstatedir@!g \ -e s!\@sbindir\@!@sbindir@!g \ diff --git a/daemon/libvirt-guests.init.in b/daemon/libvirt-guests.init.in new file mode 100644 index 0000000..e930115 --- /dev/null +++ b/daemon/libvirt-guests.init.in @@ -0,0 +1,194 @@ +#!/bin/sh + +# the following is the LSB init header see +# http://www.linux-foundation.org/spec//booksets/LSB-Core-generic/LSB-Core-ge… +# +### BEGIN INIT INFO +# Provides: libvirt-guests +# Required-Start: libvirtd +# Required-Stop: libvirtd +# Default-Start: 3 4 5 +# Short-Description: suspend/resume libvirt guests on shutdown/boot +# Description: This is a script for suspending active libvirt guests +# on shutdown and resuming them on next boot +# See http://libvirt.org +### END INIT INFO + +# the following is chkconfig init header +# +# libvirt-guests: suspend/resume libvirt guests on shutdown/boot +# +# chkconfig: 345 98 02 +# description: This is a script for suspending active libvirt guests +# on shutdown and resuming them on next boot +# See http://libvirt.org +# + +sysconfdir=@sysconfdir@ +localstatedir=@localstatedir@ + +# Source function library. +. $sysconfdir/rc.d/init.d/functions + +URIS=default + +test -f $sysconfdir/sysconfig/libvirt-guests && . $sysconfdir/sysconfig/libvirt-guests + +LISTFILE=$localstatedir/lib/libvirt/libvirt-guests + +RETVAL=0 + +retval() { + "$@" + if [ $? -ne 0 ]; then + RETVAL=1 + return 1 + else + return 0 + fi +} + +run_virsh() { + uri=$1 + shift + + if [ "x$uri" = xdefault ]; then + conn= + else + conn="-c $uri" + fi + + virsh $conn "$@" +} + +run_virsh_c() { + ( export LC_ALL=C; run_virsh "$@" ) +} + +list_guests() { + uri=$1 + + list=`run_virsh_c $uri list` + if [ $? -ne 0 ]; then + RETVAL=1 + return 1 + fi + + for id in `echo "$list" | awk 'NR > 2 {print $1}'`; do + run_virsh_c $uri dominfo $id | awk '/^UUID:/{print $2}' + done +} + +guest_name() { + uri=$1 + uuid=$2 + + name=`run_virsh_c $uri dominfo $uuid 2>/dev/null | \ + awk '/^Name:/{print $2}'` + [ -n "$name" ] || name=$uuid + + echo "$name" +} + +guest_is_on() { + uri=$1 + uuid=$2 + + id=`run_virsh_c $uri dominfo $uuid 2>/dev/null | \ + awk '/^Id:/{print $2}'` + + [ -n "$id" ] && ! [ "x$id" = x- ] +} + +start() { + while read uri list; do + configured=false + for confuri in $URIS; do + if [ $confuri = $uri ]; then + configured=true + break + fi + done + if ! $configured; then + echo $"Ignoring guests on $uri URI" + continue + fi + + echo $"Resuming guests on $uri URI..." + for guest in $list; do + name=`guest_name $uri $guest` + echo -n $"Resuming guest $name: " + if retval guest_is_on $uri $guest; then + echo $"already active" + else + retval run_virsh $uri start "$name" >/dev/null && echo $"done" + fi + done + done <$LISTFILE + + rm -f $LISTFILE +} + +stop() { + >$LISTFILE + for uri in $URIS; do + echo -n $"Running guests on $uri URI: " + list=`list_guests $uri` + if [ $? -eq 0 ]; then + empty=true + for uuid in $list; do + $empty || echo -n ", " + echo -n `guest_name $uri $uuid` + empty=false + done + if $empty; then + echo $"no running guests." + else + echo + echo $uri $list >>$LISTFILE + fi + fi + done + + while read uri list; do + echo $"Suspending guests on $uri URI..." + for guest in $list; do + name=`guest_name $uri $guest` + label=$"Suspending $name: " + echo -n "$label" + run_virsh $uri managedsave $guest >/dev/null & + virsh_pid=$! + while true; do + sleep .5 + kill -0 $virsh_pid >&/dev/null || break + progress=`run_virsh_c $uri domjobinfo $guest 2>/dev/null | \ + awk '/^Data processed:/{print $3, $4}'` + if [ -n "$progress" ]; then + printf '\r%s%12s ' "$label" "$progress" + else + printf '\r%s%-12s ' "$label" "..." + fi + done + retval wait $virsh_pid && printf '\r%s%-12s\n' "$label" $"done" + done + done <$LISTFILE +} + +gueststatus() { + for uri in $URIS; do + echo "* $uri URI:" + retval run_virsh $uri list || echo + done +} + +# See how we were called. +case "$1" in + start|stop|gueststatus) + $1 + ;; + *) + echo $"Usage: $0 {start|stop|gueststatus}" + exit 3 + ;; +esac +exit $RETVAL diff --git a/daemon/libvirt-guests.sysconf b/daemon/libvirt-guests.sysconf new file mode 100644 index 0000000..eb70ebf --- /dev/null +++ b/daemon/libvirt-guests.sysconf @@ -0,0 +1,3 @@ +# specify URIs to check for running guests +# example: URIS='default xen:/// vbox+tcp://host/system lxc:///' +#URIS=default -- 1.7.1

3 5

[libvirt] [PATCH] qemuMonitorTextMigrate: avoid leak on OOM-error path
by Jim Meyering 18 May '10

18 May '10

Fix a minor leak: >From 0fc88bfcae06346e871d2a4a89febb160bc0857e Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Tue, 18 May 2010 12:17:23 +0200 Subject: [PATCH] qemuMonitorTextMigrate: avoid leak on OOM-error path * src/qemu/qemu_monitor_text.c (qemuMonitorTextMigrate): Also free "safedest" buffer when failing. --- src/qemu/qemu_monitor_text.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/src/qemu/qemu_monitor_text.c b/src/qemu/qemu_monitor_text.c index ae5d4d2..ec3d69d 100644 --- a/src/qemu/qemu_monitor_text.c +++ b/src/qemu/qemu_monitor_text.c @@ -1149,6 +1149,7 @@ static int qemuMonitorTextMigrate(qemuMonitorPtr mon, if (virBufferError(&extra)) { virBufferFreeAndReset(&extra); virReportOOMError(); + free(safedest); return -1; } if (virAsprintf(&cmd, "migrate %s\"%s\"", virBufferContentAndReset(&extra), safedest) < 0) { -- 1.7.1.250.g7d1e8

2 1

[libvirt] managed save and autoboot
by Daniel Berteaud 18 May '10

18 May '10

Hi everyone. I'm trying to auto-suspend my guests when the host shutdown using the managedsave function introduced in libvirt 0.8.0. If I manually managedsave all my guest, then manually start all of the guest with virsh start <guest>, everything works as expected, the saved state is restored. But there's a problem with the autoboot option: - I configure a guest to automatically start on host boot (virsh autostart guest) - I save this guest (virsh managedsave guest) - I restart libvirt to simulate a host reboot The guest is started normally, instead of loading the saved state (and the saved state is still present in /var/lib/libvirt/qemu/save/guest.save, which means next manual boot will probably fails) So, it looks like there's a difference in the way libvirt starts guests between autoboot and a manual virsh start. Anybody else have this issue ? Is this a known issue ? I'm running libvirt 0.8.1 on a CentOS 5.5 x86_64 box Regards, Daniel -- Daniel Berteaud FIREWALL-SERVICES SARL. Société de Services en Logiciels Libres Technopôle Montesquieu 33650 MARTILLAC Tel : 05 56 64 15 32 Fax : 05 56 64 15 32 Mail: daniel(a)firewall-services.com Web : http://www.firewall-services.com

4 6

[libvirt] [PATCH] linuxNodeInfoCPUPopulate: avoid used-uninitialized via a test
by Jim Meyering 18 May '10

18 May '10

See the comment: >From 1b200ba22d742e685de0b9853c8cd276df8e129f Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Tue, 18 May 2010 11:58:32 +0200 Subject: [PATCH] linuxNodeInfoCPUPopulate: avoid used-uninitialized via a test * tests/nodeinfotest.c (linuxTestCompareFiles): Don't use nodeinfo->member uninitialized. linuxNodeInfoCPUPopulate requires that some of its nodeinfo members (including threads) be initialized upon input. The nodeinfotest.c program lacked the initialization, while the only other use (nodeGetInfo) did perform it. It's not trivial to move the initialization into the function, since nodeGetInfo sets at least one member after clearing the buffer but before calling linuxNodeInfoCPUPopulate. --- tests/nodeinfotest.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/tests/nodeinfotest.c b/tests/nodeinfotest.c index 9aeb459..cb92215 100644 --- a/tests/nodeinfotest.c +++ b/tests/nodeinfotest.c @@ -40,6 +40,8 @@ static int linuxTestCompareFiles(const char *cpuinfofile, const char *outputfile cpuinfo = fopen(cpuinfofile, "r"); if (!cpuinfo) return -1; + + memset(nodeinfo, 0, sizeof(*nodeinfo)); if (linuxNodeInfoCPUPopulate(cpuinfo, &nodeinfo) < 0) { fclose(cpuinfo); return -1; -- 1.7.1.250.g7d1e8

2 2