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[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;

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[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

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[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

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[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

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[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

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[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.

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