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Re: [libvirt] [Qemu-devel] KVM call minutes for Mar 15
by Chris Wright 17 Mar '11

17 Mar '11

* Anthony Liguori (anthony(a)codemonkey.ws) wrote: > On 03/15/2011 09:53 AM, Chris Wright wrote: > > QAPI <snip> > >- c library implementation is critical to have unit tests and test > > driven development > > - thread safe? > > - no shared state, no statics. > > - threading model requires lock for the qmp session > > - licensiing? > > - LGPL > > - forwards/backwards compat? > > - designed with that in mind see wiki: > > > > http://wiki.qemu.org/Features/QAPI > > One neat feature of libqmp is that once libvirt has a better QMP > passthrough interface, we can create a QmpSession that uses libvirt. > > It would look something like: > > QmpSession *libqmp_session_new_libvirt(virDomainPtr dom); Looks like you mean this? -> request QmpSession -> client libvirt <- return QmpSession <- client -> QmpSession -> QMP -> QEMU So bypassing libvirt completely to actually use the session? Currently, it's more like: client -> QemuMonitorCommand -> libvirt -> QMP -> QEMU > The QmpSession returned by this call can then be used with all of > the libqmp interfaces. This means we can still exercise our test > suite with a guest launched through libvirt. It also should make > the libvirt pass through interface a bit easier to consume by third > parties. This sounds like it's something libvirt folks should be involved with. At the very least, this mode is there now and considered basically unstable/experimental/developer use: "Qemu monitor command '%s' executed; libvirt results may be unpredictable!" So likely some concern about making it easier to use, esp. assuming that third parties above are mgmt apps, not just developers. thanks, -chris

3 2

[libvirt] Network Interface: How to disable virbr0 correctly?
by Jake Xu 17 Mar '11

17 Mar '11

Hi all, Recently, I have been using libvirt to create virtual machines on ESX servers. It has been very well until to the point where I couldn't find any way to disable/remove the virbr0 interface properly. We use static configuration for VMs on ESX so we do not need to use virbr0 interface and we do not want libvirt to configure iptables as a result of the newly created virbr0 interface. I have tried to remove/rename the /etc/libvirt/qemu/networks/autostart.xml file, and that prevents virbr0 being installed. However, that also seems to prevent the second interface eth1 being configured properly. After libvirt defines a VM, eth0 and eht1 are both installed, but only eth0 is configured properly. The eth1 does not appear in the /etc/sysconfig/network-script/ifcfg-xxx file. It seems to me that the 'autostart.xml' file interrupts the configuration of the eth1 interface. Can anyone please advise how I can do this properly? Thanks a lot, Jake

3 6

[libvirt] attach/detach device in json mode
by Wen Congyang 17 Mar '11

17 Mar '11

Hi, all The qemu does not support monitor_command drive_add and drive_del in json mode. These two commands are important because attaching/detaching commands need them. AFAIK, if we use libvirt provided by RHEL6(not upstream), we connect to qemu in json mode. So, it is important to make qemu to support these monitor commands in json mode. Markus Armbruster(armbru(a)redhat.com) said these commands are designed badly, and he has started to work on saner commands some time ago: http://lists.nongnu.org/archive/html/qemu-devel/2011-02/msg02042.html He suggested us to use human monitor passthrough in the meantime. Should we modify libvirt to use human monitor passthrough command to support attaching/detaching device before the saner commands are ready?

5 11

[libvirt] [PATCH] macvtap: log an error if on failure to connect to netlink socket
by Laine Stump 16 Mar '11

16 Mar '11

A bug in libnl (see https://bugzilla.redhat.com/show_bug.cgi?id=677724 and https://bugzilla.redhat.com/show_bug.cgi?id=677725) makes it very easy to create a failure to connect to the netlink socket when trying to open a macvtap network device ("type='direct'" in domain interface XML). When that error occurred, there was no log message, leading virsh (for example) to report "unknown error". This patch logs a message which will hopefully be more useful. (All other error exits from the same function were already logging a message). --- src/util/macvtap.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/src/util/macvtap.c b/src/util/macvtap.c index a71db86..66bdc73 100644 --- a/src/util/macvtap.c +++ b/src/util/macvtap.c @@ -127,6 +127,8 @@ int nlComm(struct nl_msg *nl_msg, return -1; if (nl_connect(nlhandle, NETLINK_ROUTE) < 0) { + virReportSystemError(errno, + "%s", _("cannot connect to netlink socket")); rc = -1; goto err_exit; } -- 1.7.3.4

3 5

[libvirt] [PATCH] storage: Fix a problem which will cause libvirtd crashed
by Osier Yang 16 Mar '11

16 Mar '11

--- src/conf/storage_conf.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/src/conf/storage_conf.c b/src/conf/storage_conf.c index 6e3fe0e..13a3622 100644 --- a/src/conf/storage_conf.c +++ b/src/conf/storage_conf.c @@ -396,7 +396,7 @@ virStoragePoolDefParseSource(xmlXPathContextPtr ctxt, char *authType = NULL; int nsource, i; virStoragePoolOptionsPtr options; - char *port; + char *port = NULL; relnode = ctxt->node; ctxt->node = node; -- 1.7.4

2 2

[libvirt] [PATCH 0/5] libvirt/qemu - allow modification of devices in inactive domain
by KAMEZAWA Hiroyuki 16 Mar '11

16 Mar '11

Now, Xen supports at(de)tach-disk, at(de)tach-interface for inactive domains with --perisitent option. (Using --persisten against live domain will cause error.) Now, virsh attach-xxx/detach-xxx cannot modify inactive domains in qemu and --persistent option just returns error. This series adds support for modification of inactive domain's disk, interfaces. Short description 1 ... clean up for Xen's driver 2 ... add my name to AUTHORS 3 ... add --persistent modification support, just a wrapper function. 4 ... add disk support 5 ... add nics support Thanks, -Kame

4 28

[libvirt] Possibly addition to python api binding virDomain class
by Russell Ballestrini 16 Mar '11

16 Mar '11

*In the python bindings of libvirt, could we please add the following code to the virDomain class? * def state(self): """return the state of the dom object""" return self.info()[0] *This helper function would make the world of difference when coding against the libvirt api. * -- *Russell J Ballestrini*

1 0

[libvirt] [PATCH] virsh: Insert error messages to avoid a quiet abortion of commands
by Michal Privoznik 15 Mar '11

15 Mar '11

in case of incorrect option parsing. --- My former patch introduced a regression: https://bugzilla.redhat.com/show_bug.cgi?id=605660 tools/virsh.c | 52 ++++++++++++++++++++++++++++++++++++++-------------- 1 files changed, 38 insertions(+), 14 deletions(-) diff --git a/tools/virsh.c b/tools/virsh.c index b42aac4..42ebd55 100644 --- a/tools/virsh.c +++ b/tools/virsh.c @@ -706,8 +706,10 @@ cmdConnect(vshControl *ctl, const vshCmd *cmd) } VIR_FREE(ctl->name); - if (vshCommandOptString(cmd, "name", &name) <= 0) + if (vshCommandOptString(cmd, "name", &name) < 0) { + vshError(ctl, "%s", _("Please specify valid connection URI")); return FALSE; + } ctl->name = vshStrdup(ctl, name); if (!ro) { @@ -773,7 +775,7 @@ static int cmdConsole(vshControl *ctl, const vshCmd *cmd) { virDomainPtr dom; - int ret; + int ret = FALSE; const char *name = NULL; if (!vshConnectionUsability(ctl, ctl->conn)) @@ -782,11 +784,14 @@ cmdConsole(vshControl *ctl, const vshCmd *cmd) if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; - if (vshCommandOptString(cmd, "devname", &name) < 0) - return FALSE; + if (vshCommandOptString(cmd, "devname", &name) < 0) { + vshError(ctl, "%s", _("Invalid devname")); + goto cleanup; + } ret = cmdRunConsole(ctl, dom, name); +cleanup: virDomainFree(dom); return ret; } @@ -2410,8 +2415,10 @@ cmdMaxvcpus(vshControl *ctl, const vshCmd *cmd) const char *type = NULL; int vcpus; - if (vshCommandOptString(cmd, "type", &type) < 0) + if (vshCommandOptString(cmd, "type", &type) < 0) { + vshError(ctl, "%s", _("Invalid type")); return FALSE; + } if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; @@ -2856,8 +2863,10 @@ cmdSetvcpus(vshControl *ctl, const vshCmd *cmd) if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; - if (vshCommandOptInt(cmd, "count", &count) < 0) - return FALSE; + if (vshCommandOptInt(cmd, "count", &count) < 0) { + vshError(ctl, "%s", _("Invalid number of virtual CPUs")); + goto cleanup; + } if (!flags) { if (virDomainSetVcpus(dom, count) != 0) { @@ -3705,8 +3714,10 @@ doMigrate (void *opaque) if (vshCommandOptString(cmd, "desturi", &desturi) <= 0 || vshCommandOptString(cmd, "migrateuri", &migrateuri) < 0 || - vshCommandOptString(cmd, "dname", &dname) < 0) + vshCommandOptString(cmd, "dname", &dname) < 0) { + vshError(ctl, "%s", _("missing argument")); goto out; + } if (vshCommandOptBool (cmd, "live")) flags |= VIR_MIGRATE_LIVE; @@ -5509,8 +5520,10 @@ static int buildPoolXML(const vshCmd *cmd, const char **retname, char **xml) { vshCommandOptString(cmd, "source-dev", &srcDev) < 0 || vshCommandOptString(cmd, "source-name", &srcName) < 0 || vshCommandOptString(cmd, "source-format", &srcFormat) < 0 || - vshCommandOptString(cmd, "target", &target) < 0) + vshCommandOptString(cmd, "target", &target) < 0) { + vshError(NULL, "%s", _("missing argument")); goto cleanup; + } virBufferVSprintf(&buf, "<pool type='%s'>\n", type); virBufferVSprintf(&buf, " <name>%s</name>\n", name); @@ -6314,8 +6327,10 @@ cmdPoolDiscoverSourcesAs(vshControl * ctl, const vshCmd * cmd ATTRIBUTE_UNUSED) if (vshCommandOptString(cmd, "type", &type) <= 0 || vshCommandOptString(cmd, "host", &host) < 0 || - vshCommandOptString(cmd, "initiator", &initiator) < 0) + vshCommandOptString(cmd, "initiator", &initiator) < 0) { + vshError(ctl,"%s", _("missing argument")); return FALSE; + } if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; @@ -6386,8 +6401,10 @@ cmdPoolDiscoverSources(vshControl * ctl, const vshCmd * cmd ATTRIBUTE_UNUSED) if (vshCommandOptString(cmd, "type", &type) <= 0) return FALSE; - if (vshCommandOptString(cmd, "srcSpec", &srcSpecFile) < 0) + if (vshCommandOptString(cmd, "srcSpec", &srcSpecFile) < 0) { + vshError(ctl, "%s", _("missing option")); return FALSE; + } if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; @@ -8862,8 +8879,10 @@ cmdAttachInterface(vshControl *ctl, const vshCmd *cmd) vshCommandOptString(cmd, "target", &target) < 0 || vshCommandOptString(cmd, "mac", &mac) < 0 || vshCommandOptString(cmd, "script", &script) < 0 || - vshCommandOptString(cmd, "model", &model) < 0) + vshCommandOptString(cmd, "model", &model) < 0) { + vshError(ctl, "missing argument"); goto cleanup; + } /* check interface type */ if (STREQ(type, "network")) { @@ -8969,8 +8988,10 @@ cmdDetachInterface(vshControl *ctl, const vshCmd *cmd) if (vshCommandOptString(cmd, "type", &type) <= 0) goto cleanup; - if (vshCommandOptString(cmd, "mac", &mac) < 0) + if (vshCommandOptString(cmd, "mac", &mac) < 0) { + vshError(ctl, "%s", _("missing option")); goto cleanup; + } doc = virDomainGetXMLDesc(dom, 0); if (!doc) @@ -9120,6 +9141,7 @@ cmdAttachDisk(vshControl *ctl, const vshCmd *cmd) vshCommandOptString(cmd, "type", &type) < 0 || vshCommandOptString(cmd, "mode", &mode) < 0 || vshCommandOptString(cmd, "sourcetype", &stype) < 0) { + vshError(ctl, "%s", _("missing option")); goto cleanup; } @@ -11272,8 +11294,10 @@ vshCommandOptVolBy(vshControl *ctl, const vshCmd *cmd, if (vshCommandOptString(cmd, optname, &n) <= 0) return NULL; - if (vshCommandOptString(cmd, pooloptname, &p) < 0) + if (vshCommandOptString(cmd, pooloptname, &p) < 0) { + vshError(ctl, "%s", _("missing option")); return NULL; + } if (p) pool = vshCommandOptPoolBy(ctl, cmd, pooloptname, name, flag); -- 1.7.4

3 5

[libvirt] [PATCH] Ensure binary is resolved wrt $PATH in virExec
by Daniel P. Berrange 15 Mar '11

15 Mar '11

virExec would only resolved the binary to $PATH if no env variables were being set. Since there is no execvep() API in POSIX, we use virFindFileInPath to manually resolve the binary and then use execv() instead of execvp(). --- src/util/util.c | 16 ++++++++++++++-- 1 files changed, 14 insertions(+), 2 deletions(-) diff --git a/src/util/util.c b/src/util/util.c index e573f4a..a30a542 100644 --- a/src/util/util.c +++ b/src/util/util.c @@ -475,6 +475,18 @@ __virExec(const char *const*argv, int childout = -1; int childerr = -1; int tmpfd; + const char *binary = NULL; + + if (argv[0][0] != '/') { + if (!(binary = virFindFileInPath(argv[0]))) { + virReportSystemError(ENOENT, + _("Cannot find '%s' in path"), + argv[0]); + return -1; + } + } else { + binary = argv[0]; + } if ((null = open("/dev/null", O_RDWR)) < 0) { virReportSystemError(errno, @@ -694,9 +706,9 @@ __virExec(const char *const*argv, virLogReset(); if (envp) - execve(argv[0], (char **) argv, (char**)envp); + execve(binary, (char **) argv, (char**)envp); else - execvp(argv[0], (char **) argv); + execv(binary, (char **) argv); virReportSystemError(errno, _("cannot execute binary %s"), -- 1.7.4

2 1

[libvirt] [PATCH] qemu: Fallback to HMP when cpu_set QMP command is not found
by Wen Congyang 15 Mar '11

15 Mar '11

--- src/qemu/qemu_monitor_json.c | 12 ++++++++---- 1 files changed, 8 insertions(+), 4 deletions(-) diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c index a839ffe..13d12c8 100644 --- a/src/qemu/qemu_monitor_json.c +++ b/src/qemu/qemu_monitor_json.c @@ -1450,7 +1450,14 @@ int qemuMonitorJSONSetCPU(qemuMonitorPtr mon, if (!cmd) return -1; - ret = qemuMonitorJSONCommand(mon, cmd, &reply); + if ((ret = qemuMonitorJSONCommand(mon, cmd, &reply)) < 0) + goto cleanup; + + if (qemuMonitorJSONHasError(reply, "CommandNotFound")) { + VIR_DEBUG0("cpu_set command not found, trying HMP"); + ret = qemuMonitorTextSetCPU(mon, cpu, online); + goto cleanup; + } if (ret == 0) { /* XXX See if CPU soft-failed due to lack of ACPI */ @@ -1468,10 +1475,7 @@ int qemuMonitorJSONSetCPU(qemuMonitorPtr mon, ret = 1; } -#if 0 cleanup: -#endif - virJSONValueFree(cmd); virJSONValueFree(reply); return ret; -- 1.7.1

2 1

[libvirt] [PATCH] qemu: Check the unsigned integer overflow
by Osier Yang 15 Mar '11

15 Mar '11

As perhaps other hypervisor drivers use different capacity units, do the checking in qemu driver instead of in conf/domain_conf.c. --- src/qemu/qemu_command.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 198a4e2..42be6ee 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -1933,6 +1933,13 @@ qemuBuildVideoDevStr(virDomainVideoDefPtr video, virBufferVSprintf(&buf, ",id=%s", video->info.alias); if (video->type == VIR_DOMAIN_VIDEO_TYPE_QXL) { + if (video->vram > (UINT_MAX / 1024)) { + qemuReportError(VIR_ERR_INTERNAL_ERROR, + _("value for 'vram' must be less than '%u'"), + UINT_MAX / 1024); + goto error; + } + /* QEMU accepts bytes for vram_size. */ virBufferVSprintf(&buf, ",vram_size=%u", video->vram * 1024); } -- 1.7.4

3 5

[libvirt] [PATCH] Add compat function for geteuid()
by Daniel P. Berrange 15 Mar '11

15 Mar '11

* configure.ac: Check for geteuid() * src/util/util.h: Compat for geteuid() --- configure.ac | 2 +- src/util/util.h | 4 ++++ 2 files changed, 5 insertions(+), 1 deletions(-) diff --git a/configure.ac b/configure.ac index a58ee4e..e2b2b24 100644 --- a/configure.ac +++ b/configure.ac @@ -120,7 +120,7 @@ AC_MSG_RESULT([$have_cpuid]) dnl Availability of various common functions (non-fatal if missing), dnl and various less common threadsafe functions AC_CHECK_FUNCS_ONCE([cfmakeraw regexec sched_getaffinity getuid getgid \ - initgroups posix_fallocate mmap kill \ + geteuid initgroups posix_fallocate mmap kill \ getmntent_r getgrnam_r getpwuid_r]) dnl Availability of pthread functions (if missing, win32 threading is diff --git a/src/util/util.h b/src/util/util.h index 31c3a33..276e259 100644 --- a/src/util/util.h +++ b/src/util/util.h @@ -269,6 +269,10 @@ const char *virEnumToString(const char *const*types, static inline int getuid (void) { return 0; } # endif +# ifndef HAVE_GETUID +static inline int geteuid (void) { return 0; } +# endif + # ifndef HAVE_GETGID static inline int getgid (void) { return 0; } # endif -- 1.7.4

3 3

[libvirt] [PATCH] Fix misc bugs in virCommandPtr
by Daniel P. Berrange 15 Mar '11

15 Mar '11

The virCommandNewArgs() method would free the virCommandPtr if it failed to add the args. This meant errors reported in virCommandAddArgSet() were lost. Simply removing the check for errors from the constructor means they can be reported correctly later The virCommandAddEnvPassCommon() method failed to check for errors before reallocating the cmd->env array, causing a potential SEGV if cmd was NULL The virCommandAddArgSet() method needs to validate that at least 1 element in 'val's parameter is non-NULL, otherwise code like cmd = virCommandNew(binary) virCommandAddAtg(cmd, "foo") Would end up trying todo execve("foo"), if binary was NULL. --- src/util/command.c | 13 ++++++++----- 1 files changed, 8 insertions(+), 5 deletions(-) diff --git a/src/util/command.c b/src/util/command.c index ff2bd46..22f350b 100644 --- a/src/util/command.c +++ b/src/util/command.c @@ -109,11 +109,6 @@ virCommandNewArgs(const char *const*args) virCommandAddArgSet(cmd, args); - if (cmd->has_error) { - virCommandFree(cmd); - return NULL; - } - return cmd; } @@ -362,6 +357,9 @@ virCommandAddEnvPass(virCommandPtr cmd, const char *name) void virCommandAddEnvPassCommon(virCommandPtr cmd) { + if (!cmd || cmd->has_error) + return; + /* Attempt to Pre-allocate; allocation failure will be detected * later during virCommandAdd*. */ ignore_value(VIR_RESIZE_N(cmd->env, cmd->maxenv, cmd->nenv, 9)); @@ -478,6 +476,11 @@ virCommandAddArgSet(virCommandPtr cmd, const char *const*vals) if (!cmd || cmd->has_error) return; + if (vals[0] == NULL) { + cmd->has_error = EINVAL; + return; + } + while (vals[narg] != NULL) narg++; -- 1.7.4

3 3

[libvirt] [PATCH] Change message for VIR_FROM_RPC error domain
by Daniel P. Berrange 15 Mar '11

15 Mar '11

The VIR_FROM_RPC error domain is used generically for any RPC problem, not simply XML-RPC problems. * src/util/virterror.c: s/XML-RPC/RPC/ --- src/util/virterror.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/src/util/virterror.c b/src/util/virterror.c index dc00957..7c07c69 100644 --- a/src/util/virterror.c +++ b/src/util/virterror.c @@ -105,7 +105,7 @@ static const char *virErrorDomainName(virErrorDomain domain) { dom = "Domain "; break; case VIR_FROM_RPC: - dom = "XML-RPC "; + dom = "RPC "; break; case VIR_FROM_QEMU: dom = "QEMU "; -- 1.7.4

2 1

[libvirt] [PATCH] Add virSetBlocking() to allow O_NONBLOCK to be toggle on or off
by Daniel P. Berrange 15 Mar '11

15 Mar '11

The virSetNonBlock() API only allows enabling non-blocking operations. It doesn't allow turning blocking back on. Add a new API to allow arbitrary toggling. * src/libvirt_private.syms, src/util/util.h src/util/util.c: Add virSetBlocking --- src/libvirt_private.syms | 1 + src/util/util.c | 13 ++++++++++--- src/util/util.h | 1 + 3 files changed, 12 insertions(+), 3 deletions(-) diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index 09eb03a..c88d934 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -910,6 +910,7 @@ virRandom; virRandomInitialize; virRun; virRunWithHook; +virSetBlocking; virSetCloseExec; virSetNonBlock; virSetUIDGID; diff --git a/src/util/util.c b/src/util/util.c index f41e117..e573f4a 100644 --- a/src/util/util.c +++ b/src/util/util.c @@ -244,16 +244,19 @@ virArgvToString(const char *const *argv) return ret; } -int virSetNonBlock(int fd) { +int virSetBlocking(int fd, bool blocking) { #ifndef WIN32 int flags; if ((flags = fcntl(fd, F_GETFL)) < 0) return -1; - flags |= O_NONBLOCK; + if (blocking) + flags &= ~O_NONBLOCK; + else + flags |= O_NONBLOCK; if ((fcntl(fd, F_SETFL, flags)) < 0) return -1; #else - unsigned long flag = 1; + unsigned long flag = blocking ? 0 : 1; /* This is actually Gnulib's replacement rpl_ioctl function. * We can't call ioctlsocket directly in any case. @@ -264,6 +267,10 @@ int virSetNonBlock(int fd) { return 0; } +int virSetNonBlock(int fd) { + return virSetBlocking(fd, false); +} + #ifndef WIN32 diff --git a/src/util/util.h b/src/util/util.h index 5f6473c..31c3a33 100644 --- a/src/util/util.h +++ b/src/util/util.h @@ -49,6 +49,7 @@ enum { VIR_EXEC_CLEAR_CAPS = (1 << 2), }; +int virSetBlocking(int fd, bool blocking) ATTRIBUTE_RETURN_CHECK; int virSetNonBlock(int fd) ATTRIBUTE_RETURN_CHECK; int virSetCloseExec(int fd) ATTRIBUTE_RETURN_CHECK; -- 1.7.4

2 1

[libvirt] [PATCH 0/4] white space handling in libvirt-guest.init script
by Philipp Hahn 15 Mar '11

15 Mar '11

libvirt-guest doesn't correctly handle the case, that the domain name contains blanks, when it parses the output of "virsh dominfo | grep Name". While investigating this this bug, I took the opportunity to also fix several other potential quoting problems in libvirt-guest.init. Those further changes might be controversial, since most variables will never contain characters from IFS, but since I encountered several problems with scripts not quoting variables in the past, I personally tend to quote almost every variable which must contains exactly one single value. The last patch is not for application, but since I had to do it anyway, I'll include it for others for inspiration. So #1 is the most important, #2 and #3 depends on your preferred style, and #4 is just FYI only. Philipp Hahn (4): libvirt-guest.init: handle domain name with spaces libvirt-guest.init: quoting variables libvirt-guest.init: declare variables as local libvirt-guest.init: Use lsb-init functions tools/libvirt-guests.init.sh | 145 ++++++++++++++++++++++-------------------- 1 files changed, 77 insertions(+), 68 deletions(-) Sincerely Philipp Hahn -- Philipp Hahn Open Source Software Engineer hahn(a)univention.de Univention GmbH Linux for Your Business fon: +49 421 22 232- 0 Mary-Somerville-Str.1 28359 Bremen fax: +49 421 22 232-99 http://www.univention.de/

4 16

[libvirt] [PATCH] docs: update windows page for initial libvirt 0.8.8 installer
by Justin Clift 15 Mar '11

15 Mar '11

--- docs/windows.html.in | 9 +-------- 1 files changed, 1 insertions(+), 8 deletions(-) diff --git a/docs/windows.html.in b/docs/windows.html.in index 4850a54..4011cc3 100644 --- a/docs/windows.html.in +++ b/docs/windows.html.in @@ -18,7 +18,7 @@ version is available here: </p> - <a href="http://libvirt.org/sources/win32_experimental/Libvirt-0.8.7-2.exe">http://libvirt.org/sources/win32_experimental/Libvirt-0.8.7-2.exe</a> + <a href="http://libvirt.org/sources/win32_experimental/Libvirt-0.8.8-0.exe">http://libvirt.org/sources/win32_experimental/Libvirt-0.8.8-0.exe</a> <p> <b>It is not production ready.</b> @@ -70,13 +70,6 @@ <br /><br /> </li> - <li> - Start menu shortcuts aren't being removed at uninstall time - <br /><br /> - Not sure why yet. Needs to be investigated. - <br /><br /> - </li> - </ul> <h2><a name="conntypes">Connection types</h2> -- 1.7.4.1

1 1

[libvirt] [PATCH] libvirt: fix a simple bug in virDomainSetMemoryFlags()
by Taku Izumi 15 Mar '11

15 Mar '11

This patch fix a simple bug in virDomainSetMemoryFlags function. The patch sent before lacks the consideration of the case where the driver doesn't support virDomainSetMemoryFlags API. Signed-off-by: Taku Izumi <izumi.taku(a)jp.fujitsu.com> --- src/libvirt.c | 2 ++ 1 file changed, 2 insertions(+) Index: libvirt/src/libvirt.c =================================================================== --- libvirt.orig/src/libvirt.c +++ libvirt/src/libvirt.c @@ -2902,6 +2902,8 @@ virDomainSetMemoryFlags(virDomainPtr dom return ret; } + virLibConnError(VIR_ERR_NO_SUPPORT, __FUNCTION__); + error: virDispatchError(domain->conn); return -1;

2 1

[libvirt] [PATCH v2] Allow to dynamically set the size of the debug buffer
by Daniel Veillard 15 Mar '11

15 Mar '11

Changes in v2: - fixes based on comment received (except using size_t for the reason provided) - avoid a deadlock in case of error allocating the buffer - make more clear that 64 kB is the default and any value <= 0 deactivate the buffer This is the part allowing to dynamically resize the debug log buffer from it's default 64kB size. The buffer is now dynamically allocated. It adds a new API virLogSetBufferSize() which resizes the buffer (possibly dynamically but in that case the existing content is lost - the complexity wasn't looking like worth it). If passed a zero or less size, the buffer is deallocated and we do the small optimization of not formatting messages which are not output anymore. On the daemon side, it just adds a new option log_buffer_size to libvirtd.conf and call virLogSetBufferSize() if needed. Seems to work fine, I tried to keep the code as simple as needed, this allowed me to find out that on a quiet daemon startup we emit half a megabyte of debug log ! Daniel

2 4

[libvirt] [PATCH v2] Fix performance problem of virStorageVolCreateXMLFrom()
by Minoru Usui 15 Mar '11

15 Mar '11

This patch changes zerobuf variable from array to VIR_ALLOC_N(). Signed-off-by: Minoru Usui <usui(a)mxm.nes.nec.co.jp> --- src/storage/storage_backend.c | 38 +++++++++++++++++++++++++++++--------- 1 files changed, 29 insertions(+), 9 deletions(-) diff --git a/src/storage/storage_backend.c b/src/storage/storage_backend.c index 2eede74..3a22da4 100644 --- a/src/storage/storage_backend.c +++ b/src/storage/storage_backend.c @@ -36,6 +36,10 @@ #include <sys/stat.h> #include <sys/param.h> #include <dirent.h> +#ifdef __linux__ +#include <sys/ioctl.h> +#include <linux/fs.h> +#endif #if HAVE_SELINUX # include <selinux/selinux.h> @@ -108,6 +112,9 @@ enum { TOOL_QCOW_CREATE, }; +#define READ_BLOCK_SIZE_DEFAULT (1024 * 1024) +#define WRITE_BLOCK_SIZE_DEFAULT (512) + static int ATTRIBUTE_NONNULL (2) virStorageBackendCopyToFD(virStorageVolDefPtr vol, virStorageVolDefPtr inputvol, @@ -119,8 +126,10 @@ virStorageBackendCopyToFD(virStorageVolDefPtr vol, int amtread = -1; int ret = 0; unsigned long long remain; - size_t bytes = 1024 * 1024; - char zerobuf[512]; + size_t rbytes = READ_BLOCK_SIZE_DEFAULT; + size_t wbytes = WRITE_BLOCK_SIZE_DEFAULT; + int interval; + char *zerobuf; char *buf = NULL; if ((inputfd = open(inputvol->target.path, O_RDONLY)) < 0) { @@ -131,9 +140,19 @@ virStorageBackendCopyToFD(virStorageVolDefPtr vol, goto cleanup; } - bzero(&zerobuf, sizeof(zerobuf)); +#ifdef __linux__ + if (ioctl(fd, BLKBSZGET, &wbytes) < 0) { + wbytes = WRITE_BLOCK_SIZE_DEFAULT; + } +#endif + + if (VIR_ALLOC_N(zerobuf, wbytes) < 0) { + ret = -errno; + virReportOOMError(); + goto cleanup; + } - if (VIR_ALLOC_N(buf, bytes) < 0) { + if (VIR_ALLOC_N(buf, rbytes) < 0) { ret = -errno; virReportOOMError(); goto cleanup; @@ -144,10 +163,10 @@ virStorageBackendCopyToFD(virStorageVolDefPtr vol, while (amtread != 0) { int amtleft; - if (remain < bytes) - bytes = remain; + if (remain < rbytes) + rbytes = remain; - if ((amtread = saferead(inputfd, buf, bytes)) < 0) { + if ((amtread = saferead(inputfd, buf, rbytes)) < 0) { ret = -errno; virReportSystemError(errno, _("failed reading from file '%s'"), @@ -160,7 +179,7 @@ virStorageBackendCopyToFD(virStorageVolDefPtr vol, * blocks */ amtleft = amtread; do { - int interval = ((512 > amtleft) ? amtleft : 512); + interval = ((wbytes > amtleft) ? amtleft : wbytes); int offset = amtread - amtleft; if (is_dest_file && memcmp(buf+offset, zerobuf, interval) == 0) { @@ -179,7 +198,7 @@ virStorageBackendCopyToFD(virStorageVolDefPtr vol, goto cleanup; } - } while ((amtleft -= 512) > 0); + } while ((amtleft -= interval) > 0); } if (VIR_CLOSE(inputfd) < 0) { @@ -196,6 +215,7 @@ virStorageBackendCopyToFD(virStorageVolDefPtr vol, cleanup: VIR_FORCE_CLOSE(inputfd); + VIR_FREE(zerobuf); VIR_FREE(buf); return ret; -- Minoru Usui <usui(a)mxm.nes.nec.co.jp>

2 2

[libvirt] [PATCH] maint: make spacing in .sh files easier
by Eric Blake 15 Mar '11

15 Mar '11

Commit 7f193757 renamed libvirt-guests.init from .in to .sh, which made it slip past sc_TAB_in_indentation. I nearly reintroduced a tab, so I'm pushing this to prevent that from happening. * cfg.mk (sc_TAB_in_indentation): Update rule to include .sh files. * .dir-locals.el: List spacing preference for .sh files. --- Pushing this under the trivial rule. .dir-locals.el | 3 +++ cfg.mk | 5 +++-- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/.dir-locals.el b/.dir-locals.el index f24ec61..d5eba86 100644 --- a/.dir-locals.el +++ b/.dir-locals.el @@ -8,4 +8,7 @@ (html-mode . ( (indent-tabs-mode . nil) )) + (sh-mode . ( + (indent-tabs-mode . nil) + )) ) diff --git a/cfg.mk b/cfg.mk index 5cb2ead..c12f199 100644 --- a/cfg.mk +++ b/cfg.mk @@ -327,10 +327,11 @@ sc_prohibit_ctype_h: # Ensure that no C source file, docs, or rng schema uses TABs for # indentation. Also match *.h.in files, to get libvirt.h.in. Exclude # files in gnulib, since they're imported. +space_indent_files=(\.(rng|s?[ch](\.in)?|html.in|py)|(daemon|tools)/.*\.in) sc_TAB_in_indentation: @prohibit='^ * ' \ - in_vc_files='(\.(rng|[ch](\.in)?|html.in|py)|(daemon|tools)/.*\.in)$$' \ - halt='use leading spaces, not TAB, in C, sh, html, py, and RNG schemas' \ + in_vc_files='$(space_indent_files)$$' \ + halt='indent with space, not TAB, in C, sh, html, py, and RNG schemas' \ $(_sc_search_regexp) ctype_re = isalnum|isalpha|isascii|isblank|iscntrl|isdigit|isgraph|islower\ -- 1.7.4

1 0

[libvirt] [PATCH] virsh: optimize creation of default connection
by Eric Blake 14 Mar '11

14 Mar '11

Ramon de Carvalho Valle reported a problem with: virsh connect qemu:///system as a non-root user. The real root problem appears to be a regression in libvirtd being auto-started on the default qemu:///session URI; however, the symptom points to an independent flaw in virsh - we shouldn't be wasting efforts on making a connection if we aren't going to be using that connection. Fixing virsh avoids Ramon's issue, while I work in the meantime to fix the real libvirtd regression. This patch looks big, but that's because 'gcc -Wmissing-field-initializers' gets triggered by './autobuild.sh --enable-compile-warnings=error', so I had to add 0 initialization to everyone (rather than my preference of just adding the non-zero flags to virshCmds and to cmdConnect). Meanwhile, if you use 'virsh -c URI', the connection must succeed; this patch _only_ optimizes the default connection to be deferred to a later point where we know if a particular command to be run needs a connection. * tools/virsh.c (VSH_CMD_FLAG_NOCONNECT): New flag. (vshCmdDef): Add new flags field. (vshCommandRun): Honor new flag. (domManagementCmds, domMonitoringCmds, storagePoolCmds) (storageVolCmds, networkCmds, nodedevCmds, ifaceCmds) (nwfilterCmds, secretCmds, virshCmds, snapshotCmds) (hostAndHypervisorCmds): Populate new field. (vshReconnect): Don't warn on initial connection. --- This is https://bugzilla.redhat.com/show_bug.cgi?id=684848 It depends on this patch as a prereq: https://www.redhat.com/archives/libvir-list/2011-March/msg00629.html tools/virsh.c | 423 +++++++++++++++++++++++++++++++++------------------------ 1 files changed, 247 insertions(+), 176 deletions(-) diff --git a/tools/virsh.c b/tools/virsh.c index 8ac32fc..33ba968 100644 --- a/tools/virsh.c +++ b/tools/virsh.c @@ -190,6 +190,13 @@ typedef struct vshCmdOpt { } vshCmdOpt; /* + * Command Usage Flags + */ +enum { + VSH_CMD_FLAG_NOCONNECT = (1 << 0), /* no prior connection needed */ +}; + +/* * vshCmdDef - command definition */ typedef struct { @@ -197,6 +204,7 @@ typedef struct { int (*handler) (vshControl *, const vshCmd *); /* command handler */ const vshCmdOptDef *opts; /* definition of command options */ const vshCmdInfo *info; /* details about command */ + int flags; /* bitwise OR of VSH_CMD_FLAG */ } vshCmdDef; /* @@ -558,16 +566,21 @@ vshSetupSignals(void) { * */ static void -vshReconnect(vshControl *ctl) { - if (ctl->conn != NULL) +vshReconnect(vshControl *ctl) +{ + bool connected = false; + + if (ctl->conn != NULL) { + connected = true; virConnectClose(ctl->conn); + } ctl->conn = virConnectOpenAuth(ctl->name, virConnectAuthPtrDefault, ctl->readonly ? VIR_CONNECT_RO : 0); if (!ctl->conn) vshError(ctl, "%s", _("Failed to reconnect to the hypervisor")); - else + else if (connected) vshError(ctl, "%s", _("Reconnected to the hypervisor")); disconnected = 0; } @@ -9659,7 +9672,7 @@ static const vshCmdOptDef opts_cd[] = { }; static int -cmdCd(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED) +cmdCd(vshControl *ctl, const vshCmd *cmd) { const char *dir = NULL; char *dir_malloced = NULL; @@ -10442,206 +10455,260 @@ cleanup: } static const vshCmdDef domManagementCmds[] = { - {"attach-device", cmdAttachDevice, opts_attach_device, info_attach_device}, - {"attach-disk", cmdAttachDisk, opts_attach_disk, info_attach_disk}, - {"attach-interface", cmdAttachInterface, opts_attach_interface, info_attach_interface}, - {"autostart", cmdAutostart, opts_autostart, info_autostart}, - {"blkiotune", cmdBlkiotune, opts_blkiotune, info_blkiotune}, + {"attach-device", cmdAttachDevice, opts_attach_device, + info_attach_device, 0}, + {"attach-disk", cmdAttachDisk, opts_attach_disk, + info_attach_disk, 0}, + {"attach-interface", cmdAttachInterface, opts_attach_interface, + info_attach_interface, 0}, + {"autostart", cmdAutostart, opts_autostart, info_autostart, 0}, + {"blkiotune", cmdBlkiotune, opts_blkiotune, info_blkiotune, 0}, #ifndef WIN32 - {"console", cmdConsole, opts_console, info_console}, + {"console", cmdConsole, opts_console, info_console, 0}, #endif - {"cpu-baseline", cmdCPUBaseline, opts_cpu_baseline, info_cpu_baseline}, - {"cpu-compare", cmdCPUCompare, opts_cpu_compare, info_cpu_compare}, - {"create", cmdCreate, opts_create, info_create}, - {"define", cmdDefine, opts_define, info_define}, - {"destroy", cmdDestroy, opts_destroy, info_destroy}, - {"detach-device", cmdDetachDevice, opts_detach_device, info_detach_device}, - {"detach-disk", cmdDetachDisk, opts_detach_disk, info_detach_disk}, - {"detach-interface", cmdDetachInterface, opts_detach_interface, info_detach_interface}, - {"domid", cmdDomid, opts_domid, info_domid}, - {"domjobabort", cmdDomjobabort, opts_domjobabort, info_domjobabort}, - {"domjobinfo", cmdDomjobinfo, opts_domjobinfo, info_domjobinfo}, - {"domname", cmdDomname, opts_domname, info_domname}, - {"domuuid", cmdDomuuid, opts_domuuid, info_domuuid}, - {"domxml-from-native", cmdDomXMLFromNative, opts_domxmlfromnative, info_domxmlfromnative}, - {"domxml-to-native", cmdDomXMLToNative, opts_domxmltonative, info_domxmltonative}, - {"dump", cmdDump, opts_dump, info_dump}, - {"dumpxml", cmdDumpXML, opts_dumpxml, info_dumpxml}, - {"edit", cmdEdit, opts_edit, info_edit}, - {"managedsave", cmdManagedSave, opts_managedsave, info_managedsave}, - {"managedsave-remove", cmdManagedSaveRemove, opts_managedsaveremove, info_managedsaveremove}, - {"maxvcpus", cmdMaxvcpus, opts_maxvcpus, info_maxvcpus}, - {"memtune", cmdMemtune, opts_memtune, info_memtune}, - {"migrate", cmdMigrate, opts_migrate, info_migrate}, - {"migrate-setmaxdowntime", cmdMigrateSetMaxDowntime, opts_migrate_setmaxdowntime, info_migrate_setmaxdowntime}, - {"reboot", cmdReboot, opts_reboot, info_reboot}, - {"restore", cmdRestore, opts_restore, info_restore}, - {"resume", cmdResume, opts_resume, info_resume}, - {"save", cmdSave, opts_save, info_save}, - {"schedinfo", cmdSchedinfo, opts_schedinfo, info_schedinfo}, - {"setmaxmem", cmdSetmaxmem, opts_setmaxmem, info_setmaxmem}, - {"setmem", cmdSetmem, opts_setmem, info_setmem}, - {"setvcpus", cmdSetvcpus, opts_setvcpus, info_setvcpus}, - {"shutdown", cmdShutdown, opts_shutdown, info_shutdown}, - {"start", cmdStart, opts_start, info_start}, - {"suspend", cmdSuspend, opts_suspend, info_suspend}, - {"ttyconsole", cmdTTYConsole, opts_ttyconsole, info_ttyconsole}, - {"undefine", cmdUndefine, opts_undefine, info_undefine}, - {"update-device", cmdUpdateDevice, opts_update_device, info_update_device}, - {"vcpucount", cmdVcpucount, opts_vcpucount, info_vcpucount}, - {"vcpuinfo", cmdVcpuinfo, opts_vcpuinfo, info_vcpuinfo}, - {"vcpupin", cmdVcpupin, opts_vcpupin, info_vcpupin}, - {"version", cmdVersion, NULL, info_version}, - {"vncdisplay", cmdVNCDisplay, opts_vncdisplay, info_vncdisplay}, - {NULL, NULL, NULL, NULL} + {"cpu-baseline", cmdCPUBaseline, opts_cpu_baseline, info_cpu_baseline, 0}, + {"cpu-compare", cmdCPUCompare, opts_cpu_compare, info_cpu_compare, 0}, + {"create", cmdCreate, opts_create, info_create, 0}, + {"define", cmdDefine, opts_define, info_define, 0}, + {"destroy", cmdDestroy, opts_destroy, info_destroy, 0}, + {"detach-device", cmdDetachDevice, opts_detach_device, + info_detach_device, 0}, + {"detach-disk", cmdDetachDisk, opts_detach_disk, info_detach_disk, 0}, + {"detach-interface", cmdDetachInterface, opts_detach_interface, + info_detach_interface, 0}, + {"domid", cmdDomid, opts_domid, info_domid, 0}, + {"domjobabort", cmdDomjobabort, opts_domjobabort, info_domjobabort, 0}, + {"domjobinfo", cmdDomjobinfo, opts_domjobinfo, info_domjobinfo, 0}, + {"domname", cmdDomname, opts_domname, info_domname, 0}, + {"domuuid", cmdDomuuid, opts_domuuid, info_domuuid, 0}, + {"domxml-from-native", cmdDomXMLFromNative, opts_domxmlfromnative, + info_domxmlfromnative, 0}, + {"domxml-to-native", cmdDomXMLToNative, opts_domxmltonative, + info_domxmltonative, 0}, + {"dump", cmdDump, opts_dump, info_dump, 0}, + {"dumpxml", cmdDumpXML, opts_dumpxml, info_dumpxml, 0}, + {"edit", cmdEdit, opts_edit, info_edit, 0}, + {"managedsave", cmdManagedSave, opts_managedsave, info_managedsave, 0}, + {"managedsave-remove", cmdManagedSaveRemove, opts_managedsaveremove, + info_managedsaveremove, 0}, + {"maxvcpus", cmdMaxvcpus, opts_maxvcpus, info_maxvcpus, 0}, + {"memtune", cmdMemtune, opts_memtune, info_memtune, 0}, + {"migrate", cmdMigrate, opts_migrate, info_migrate, 0}, + {"migrate-setmaxdowntime", cmdMigrateSetMaxDowntime, + opts_migrate_setmaxdowntime, info_migrate_setmaxdowntime, 0}, + {"reboot", cmdReboot, opts_reboot, info_reboot, 0}, + {"restore", cmdRestore, opts_restore, info_restore, 0}, + {"resume", cmdResume, opts_resume, info_resume, 0}, + {"save", cmdSave, opts_save, info_save, 0}, + {"schedinfo", cmdSchedinfo, opts_schedinfo, info_schedinfo, 0}, + {"setmaxmem", cmdSetmaxmem, opts_setmaxmem, info_setmaxmem, 0}, + {"setmem", cmdSetmem, opts_setmem, info_setmem, 0}, + {"setvcpus", cmdSetvcpus, opts_setvcpus, info_setvcpus, 0}, + {"shutdown", cmdShutdown, opts_shutdown, info_shutdown, 0}, + {"start", cmdStart, opts_start, info_start, 0}, + {"suspend", cmdSuspend, opts_suspend, info_suspend, 0}, + {"ttyconsole", cmdTTYConsole, opts_ttyconsole, info_ttyconsole, 0}, + {"undefine", cmdUndefine, opts_undefine, info_undefine, 0}, + {"update-device", cmdUpdateDevice, opts_update_device, + info_update_device, 0}, + {"vcpucount", cmdVcpucount, opts_vcpucount, info_vcpucount, 0}, + {"vcpuinfo", cmdVcpuinfo, opts_vcpuinfo, info_vcpuinfo, 0}, + {"vcpupin", cmdVcpupin, opts_vcpupin, info_vcpupin, 0}, + {"version", cmdVersion, NULL, info_version, 0}, + {"vncdisplay", cmdVNCDisplay, opts_vncdisplay, info_vncdisplay, 0}, + {NULL, NULL, NULL, NULL, 0} }; static const vshCmdDef domMonitoringCmds[] = { - {"domblkinfo", cmdDomblkinfo, opts_domblkinfo, info_domblkinfo}, - {"domblkstat", cmdDomblkstat, opts_domblkstat, info_domblkstat}, - {"domifstat", cmdDomIfstat, opts_domifstat, info_domifstat}, - {"dominfo", cmdDominfo, opts_dominfo, info_dominfo}, - {"dommemstat", cmdDomMemStat, opts_dommemstat, info_dommemstat}, - {"domstate", cmdDomstate, opts_domstate, info_domstate}, - {"list", cmdList, opts_list, info_list}, - {NULL, NULL, NULL, NULL} + {"domblkinfo", cmdDomblkinfo, opts_domblkinfo, info_domblkinfo, 0}, + {"domblkstat", cmdDomblkstat, opts_domblkstat, info_domblkstat, 0}, + {"domifstat", cmdDomIfstat, opts_domifstat, info_domifstat, 0}, + {"dominfo", cmdDominfo, opts_dominfo, info_dominfo, 0}, + {"dommemstat", cmdDomMemStat, opts_dommemstat, info_dommemstat, 0}, + {"domstate", cmdDomstate, opts_domstate, info_domstate, 0}, + {"list", cmdList, opts_list, info_list, 0}, + {NULL, NULL, NULL, NULL, 0} }; static const vshCmdDef storagePoolCmds[] = { {"find-storage-pool-sources-as", cmdPoolDiscoverSourcesAs, - opts_find_storage_pool_sources_as, info_find_storage_pool_sources_as}, + opts_find_storage_pool_sources_as, info_find_storage_pool_sources_as, 0}, {"find-storage-pool-sources", cmdPoolDiscoverSources, - opts_find_storage_pool_sources, info_find_storage_pool_sources}, - {"pool-autostart", cmdPoolAutostart, opts_pool_autostart, info_pool_autostart}, - {"pool-build", cmdPoolBuild, opts_pool_build, info_pool_build}, - {"pool-create-as", cmdPoolCreateAs, opts_pool_X_as, info_pool_create_as}, - {"pool-create", cmdPoolCreate, opts_pool_create, info_pool_create}, - {"pool-define-as", cmdPoolDefineAs, opts_pool_X_as, info_pool_define_as}, - {"pool-define", cmdPoolDefine, opts_pool_define, info_pool_define}, - {"pool-delete", cmdPoolDelete, opts_pool_delete, info_pool_delete}, - {"pool-destroy", cmdPoolDestroy, opts_pool_destroy, info_pool_destroy}, - {"pool-dumpxml", cmdPoolDumpXML, opts_pool_dumpxml, info_pool_dumpxml}, - {"pool-edit", cmdPoolEdit, opts_pool_edit, info_pool_edit}, - {"pool-info", cmdPoolInfo, opts_pool_info, info_pool_info}, - {"pool-list", cmdPoolList, opts_pool_list, info_pool_list}, - {"pool-name", cmdPoolName, opts_pool_name, info_pool_name}, - {"pool-refresh", cmdPoolRefresh, opts_pool_refresh, info_pool_refresh}, - {"pool-start", cmdPoolStart, opts_pool_start, info_pool_start}, - {"pool-undefine", cmdPoolUndefine, opts_pool_undefine, info_pool_undefine}, - {"pool-uuid", cmdPoolUuid, opts_pool_uuid, info_pool_uuid}, - {NULL, NULL, NULL, NULL} + opts_find_storage_pool_sources, info_find_storage_pool_sources, 0}, + {"pool-autostart", cmdPoolAutostart, opts_pool_autostart, + info_pool_autostart, 0}, + {"pool-build", cmdPoolBuild, opts_pool_build, info_pool_build, 0}, + {"pool-create-as", cmdPoolCreateAs, opts_pool_X_as, info_pool_create_as, 0}, + {"pool-create", cmdPoolCreate, opts_pool_create, info_pool_create, 0}, + {"pool-define-as", cmdPoolDefineAs, opts_pool_X_as, info_pool_define_as, 0}, + {"pool-define", cmdPoolDefine, opts_pool_define, info_pool_define, 0}, + {"pool-delete", cmdPoolDelete, opts_pool_delete, info_pool_delete, 0}, + {"pool-destroy", cmdPoolDestroy, opts_pool_destroy, info_pool_destroy, 0}, + {"pool-dumpxml", cmdPoolDumpXML, opts_pool_dumpxml, info_pool_dumpxml, 0}, + {"pool-edit", cmdPoolEdit, opts_pool_edit, info_pool_edit, 0}, + {"pool-info", cmdPoolInfo, opts_pool_info, info_pool_info, 0}, + {"pool-list", cmdPoolList, opts_pool_list, info_pool_list, 0}, + {"pool-name", cmdPoolName, opts_pool_name, info_pool_name, 0}, + {"pool-refresh", cmdPoolRefresh, opts_pool_refresh, info_pool_refresh, 0}, + {"pool-start", cmdPoolStart, opts_pool_start, info_pool_start, 0}, + {"pool-undefine", cmdPoolUndefine, opts_pool_undefine, + info_pool_undefine, 0}, + {"pool-uuid", cmdPoolUuid, opts_pool_uuid, info_pool_uuid, 0}, + {NULL, NULL, NULL, NULL, 0} }; static const vshCmdDef storageVolCmds[] = { - {"vol-clone", cmdVolClone, opts_vol_clone, info_vol_clone}, - {"vol-create-as", cmdVolCreateAs, opts_vol_create_as, info_vol_create_as}, - {"vol-create", cmdVolCreate, opts_vol_create, info_vol_create}, - {"vol-create-from", cmdVolCreateFrom, opts_vol_create_from, info_vol_create_from}, - {"vol-delete", cmdVolDelete, opts_vol_delete, info_vol_delete}, - {"vol-dumpxml", cmdVolDumpXML, opts_vol_dumpxml, info_vol_dumpxml}, - {"vol-info", cmdVolInfo, opts_vol_info, info_vol_info}, - {"vol-key", cmdVolKey, opts_vol_key, info_vol_key}, - {"vol-list", cmdVolList, opts_vol_list, info_vol_list}, - {"vol-name", cmdVolName, opts_vol_name, info_vol_name}, - {"vol-path", cmdVolPath, opts_vol_path, info_vol_path}, - {"vol-pool", cmdVolPool, opts_vol_pool, info_vol_pool}, - {"vol-wipe", cmdVolWipe, opts_vol_wipe, info_vol_wipe}, - {NULL, NULL, NULL, NULL} + {"vol-clone", cmdVolClone, opts_vol_clone, info_vol_clone, 0}, + {"vol-create-as", cmdVolCreateAs, opts_vol_create_as, + info_vol_create_as, 0}, + {"vol-create", cmdVolCreate, opts_vol_create, info_vol_create, 0}, + {"vol-create-from", cmdVolCreateFrom, opts_vol_create_from, + info_vol_create_from, 0}, + {"vol-delete", cmdVolDelete, opts_vol_delete, info_vol_delete, 0}, + {"vol-dumpxml", cmdVolDumpXML, opts_vol_dumpxml, info_vol_dumpxml, 0}, + {"vol-info", cmdVolInfo, opts_vol_info, info_vol_info, 0}, + {"vol-key", cmdVolKey, opts_vol_key, info_vol_key, 0}, + {"vol-list", cmdVolList, opts_vol_list, info_vol_list, 0}, + {"vol-name", cmdVolName, opts_vol_name, info_vol_name, 0}, + {"vol-path", cmdVolPath, opts_vol_path, info_vol_path, 0}, + {"vol-pool", cmdVolPool, opts_vol_pool, info_vol_pool, 0}, + {"vol-wipe", cmdVolWipe, opts_vol_wipe, info_vol_wipe, 0}, + {NULL, NULL, NULL, NULL, 0} }; static const vshCmdDef networkCmds[] = { - {"net-autostart", cmdNetworkAutostart, opts_network_autostart, info_network_autostart}, - {"net-create", cmdNetworkCreate, opts_network_create, info_network_create}, - {"net-define", cmdNetworkDefine, opts_network_define, info_network_define}, - {"net-destroy", cmdNetworkDestroy, opts_network_destroy, info_network_destroy}, - {"net-dumpxml", cmdNetworkDumpXML, opts_network_dumpxml, info_network_dumpxml}, - {"net-edit", cmdNetworkEdit, opts_network_edit, info_network_edit}, - {"net-info", cmdNetworkInfo, opts_network_info, info_network_info}, - {"net-list", cmdNetworkList, opts_network_list, info_network_list}, - {"net-name", cmdNetworkName, opts_network_name, info_network_name}, - {"net-start", cmdNetworkStart, opts_network_start, info_network_start}, - {"net-undefine", cmdNetworkUndefine, opts_network_undefine, info_network_undefine}, - {"net-uuid", cmdNetworkUuid, opts_network_uuid, info_network_uuid}, - {NULL, NULL, NULL, NULL} + {"net-autostart", cmdNetworkAutostart, opts_network_autostart, + info_network_autostart, 0}, + {"net-create", cmdNetworkCreate, opts_network_create, + info_network_create, 0}, + {"net-define", cmdNetworkDefine, opts_network_define, + info_network_define, 0}, + {"net-destroy", cmdNetworkDestroy, opts_network_destroy, + info_network_destroy, 0}, + {"net-dumpxml", cmdNetworkDumpXML, opts_network_dumpxml, + info_network_dumpxml, 0}, + {"net-edit", cmdNetworkEdit, opts_network_edit, info_network_edit, 0}, + {"net-info", cmdNetworkInfo, opts_network_info, info_network_info, 0}, + {"net-list", cmdNetworkList, opts_network_list, info_network_list, 0}, + {"net-name", cmdNetworkName, opts_network_name, info_network_name, 0}, + {"net-start", cmdNetworkStart, opts_network_start, info_network_start, 0}, + {"net-undefine", cmdNetworkUndefine, opts_network_undefine, + info_network_undefine, 0}, + {"net-uuid", cmdNetworkUuid, opts_network_uuid, info_network_uuid, 0}, + {NULL, NULL, NULL, NULL, 0} }; static const vshCmdDef nodedevCmds[] = { - {"nodedev-create", cmdNodeDeviceCreate, opts_node_device_create, info_node_device_create}, - {"nodedev-destroy", cmdNodeDeviceDestroy, opts_node_device_destroy, info_node_device_destroy}, - {"nodedev-dettach", cmdNodeDeviceDettach, opts_node_device_dettach, info_node_device_dettach}, - {"nodedev-dumpxml", cmdNodeDeviceDumpXML, opts_node_device_dumpxml, info_node_device_dumpxml}, - {"nodedev-list", cmdNodeListDevices, opts_node_list_devices, info_node_list_devices}, - {"nodedev-reattach", cmdNodeDeviceReAttach, opts_node_device_reattach, info_node_device_reattach}, - {"nodedev-reset", cmdNodeDeviceReset, opts_node_device_reset, info_node_device_reset}, - {NULL, NULL, NULL, NULL} + {"nodedev-create", cmdNodeDeviceCreate, opts_node_device_create, + info_node_device_create, 0}, + {"nodedev-destroy", cmdNodeDeviceDestroy, opts_node_device_destroy, + info_node_device_destroy, 0}, + {"nodedev-dettach", cmdNodeDeviceDettach, opts_node_device_dettach, + info_node_device_dettach, 0}, + {"nodedev-dumpxml", cmdNodeDeviceDumpXML, opts_node_device_dumpxml, + info_node_device_dumpxml, 0}, + {"nodedev-list", cmdNodeListDevices, opts_node_list_devices, + info_node_list_devices, 0}, + {"nodedev-reattach", cmdNodeDeviceReAttach, opts_node_device_reattach, + info_node_device_reattach, 0}, + {"nodedev-reset", cmdNodeDeviceReset, opts_node_device_reset, + info_node_device_reset, 0}, + {NULL, NULL, NULL, NULL, 0} }; static const vshCmdDef ifaceCmds[] = { - {"iface-define", cmdInterfaceDefine, opts_interface_define, info_interface_define}, - {"iface-destroy", cmdInterfaceDestroy, opts_interface_destroy, info_interface_destroy}, - {"iface-dumpxml", cmdInterfaceDumpXML, opts_interface_dumpxml, info_interface_dumpxml}, - {"iface-edit", cmdInterfaceEdit, opts_interface_edit, info_interface_edit}, - {"iface-list", cmdInterfaceList, opts_interface_list, info_interface_list}, - {"iface-mac", cmdInterfaceMAC, opts_interface_mac, info_interface_mac}, - {"iface-name", cmdInterfaceName, opts_interface_name, info_interface_name}, - {"iface-start", cmdInterfaceStart, opts_interface_start, info_interface_start}, - {"iface-undefine", cmdInterfaceUndefine, opts_interface_undefine, info_interface_undefine}, - {NULL, NULL, NULL, NULL} + {"iface-define", cmdInterfaceDefine, opts_interface_define, + info_interface_define, 0}, + {"iface-destroy", cmdInterfaceDestroy, opts_interface_destroy, + info_interface_destroy, 0}, + {"iface-dumpxml", cmdInterfaceDumpXML, opts_interface_dumpxml, + info_interface_dumpxml, 0}, + {"iface-edit", cmdInterfaceEdit, opts_interface_edit, + info_interface_edit, 0}, + {"iface-list", cmdInterfaceList, opts_interface_list, + info_interface_list, 0}, + {"iface-mac", cmdInterfaceMAC, opts_interface_mac, + info_interface_mac, 0}, + {"iface-name", cmdInterfaceName, opts_interface_name, + info_interface_name, 0}, + {"iface-start", cmdInterfaceStart, opts_interface_start, + info_interface_start, 0}, + {"iface-undefine", cmdInterfaceUndefine, opts_interface_undefine, + info_interface_undefine, 0}, + {NULL, NULL, NULL, NULL, 0} }; static const vshCmdDef nwfilterCmds[] = { - {"nwfilter-define", cmdNWFilterDefine, opts_nwfilter_define, info_nwfilter_define}, - {"nwfilter-dumpxml", cmdNWFilterDumpXML, opts_nwfilter_dumpxml, info_nwfilter_dumpxml}, - {"nwfilter-edit", cmdNWFilterEdit, opts_nwfilter_edit, info_nwfilter_edit}, - {"nwfilter-list", cmdNWFilterList, opts_nwfilter_list, info_nwfilter_list}, - {"nwfilter-undefine", cmdNWFilterUndefine, opts_nwfilter_undefine, info_nwfilter_undefine}, - {NULL, NULL, NULL, NULL} + {"nwfilter-define", cmdNWFilterDefine, opts_nwfilter_define, + info_nwfilter_define, 0}, + {"nwfilter-dumpxml", cmdNWFilterDumpXML, opts_nwfilter_dumpxml, + info_nwfilter_dumpxml, 0}, + {"nwfilter-edit", cmdNWFilterEdit, opts_nwfilter_edit, + info_nwfilter_edit, 0}, + {"nwfilter-list", cmdNWFilterList, opts_nwfilter_list, + info_nwfilter_list, 0}, + {"nwfilter-undefine", cmdNWFilterUndefine, opts_nwfilter_undefine, + info_nwfilter_undefine, 0}, + {NULL, NULL, NULL, NULL, 0} }; static const vshCmdDef secretCmds[] = { - {"secret-define", cmdSecretDefine, opts_secret_define, info_secret_define}, - {"secret-dumpxml", cmdSecretDumpXML, opts_secret_dumpxml, info_secret_dumpxml}, - {"secret-get-value", cmdSecretGetValue, opts_secret_get_value, info_secret_get_value}, - {"secret-list", cmdSecretList, NULL, info_secret_list}, - {"secret-set-value", cmdSecretSetValue, opts_secret_set_value, info_secret_set_value}, - {"secret-undefine", cmdSecretUndefine, opts_secret_undefine, info_secret_undefine}, - {NULL, NULL, NULL, NULL} + {"secret-define", cmdSecretDefine, opts_secret_define, + info_secret_define, 0}, + {"secret-dumpxml", cmdSecretDumpXML, opts_secret_dumpxml, + info_secret_dumpxml, 0}, + {"secret-get-value", cmdSecretGetValue, opts_secret_get_value, + info_secret_get_value, 0}, + {"secret-list", cmdSecretList, NULL, info_secret_list, 0}, + {"secret-set-value", cmdSecretSetValue, opts_secret_set_value, + info_secret_set_value, 0}, + {"secret-undefine", cmdSecretUndefine, opts_secret_undefine, + info_secret_undefine, 0}, + {NULL, NULL, NULL, NULL, 0} }; static const vshCmdDef virshCmds[] = { #ifndef WIN32 - {"cd", cmdCd, opts_cd, info_cd}, + {"cd", cmdCd, opts_cd, info_cd, VSH_CMD_FLAG_NOCONNECT}, #endif - {"echo", cmdEcho, opts_echo, info_echo}, - {"exit", cmdQuit, NULL, info_quit}, - {"help", cmdHelp, opts_help, info_help}, + {"echo", cmdEcho, opts_echo, info_echo, VSH_CMD_FLAG_NOCONNECT}, + {"exit", cmdQuit, NULL, info_quit, VSH_CMD_FLAG_NOCONNECT}, + {"help", cmdHelp, opts_help, info_help, VSH_CMD_FLAG_NOCONNECT}, #ifndef WIN32 - {"pwd", cmdPwd, NULL, info_pwd}, + {"pwd", cmdPwd, NULL, info_pwd, VSH_CMD_FLAG_NOCONNECT}, #endif - {"quit", cmdQuit, NULL, info_quit}, - {NULL, NULL, NULL, NULL} + {"quit", cmdQuit, NULL, info_quit, VSH_CMD_FLAG_NOCONNECT}, + {NULL, NULL, NULL, NULL, 0} }; static const vshCmdDef snapshotCmds[] = { - {"snapshot-create", cmdSnapshotCreate, opts_snapshot_create, info_snapshot_create}, - {"snapshot-current", cmdSnapshotCurrent, opts_snapshot_current, info_snapshot_current}, - {"snapshot-delete", cmdSnapshotDelete, opts_snapshot_delete, info_snapshot_delete}, - {"snapshot-dumpxml", cmdSnapshotDumpXML, opts_snapshot_dumpxml, info_snapshot_dumpxml}, - {"snapshot-list", cmdSnapshotList, opts_snapshot_list, info_snapshot_list}, - {"snapshot-revert", cmdDomainSnapshotRevert, opts_snapshot_revert, info_snapshot_revert}, - {NULL, NULL, NULL, NULL} + {"snapshot-create", cmdSnapshotCreate, opts_snapshot_create, + info_snapshot_create, 0}, + {"snapshot-current", cmdSnapshotCurrent, opts_snapshot_current, + info_snapshot_current, 0}, + {"snapshot-delete", cmdSnapshotDelete, opts_snapshot_delete, + info_snapshot_delete, 0}, + {"snapshot-dumpxml", cmdSnapshotDumpXML, opts_snapshot_dumpxml, + info_snapshot_dumpxml, 0}, + {"snapshot-list", cmdSnapshotList, opts_snapshot_list, + info_snapshot_list, 0}, + {"snapshot-revert", cmdDomainSnapshotRevert, opts_snapshot_revert, + info_snapshot_revert, 0}, + {NULL, NULL, NULL, NULL, 0} }; static const vshCmdDef hostAndHypervisorCmds[] = { - {"capabilities", cmdCapabilities, NULL, info_capabilities}, - {"connect", cmdConnect, opts_connect, info_connect}, - {"freecell", cmdFreecell, opts_freecell, info_freecell}, - {"hostname", cmdHostname, NULL, info_hostname}, - {"nodeinfo", cmdNodeinfo, NULL, info_nodeinfo}, - {"qemu-monitor-command", cmdQemuMonitorCommand, opts_qemu_monitor_command, info_qemu_monitor_command}, - {"sysinfo", cmdSysinfo, NULL, info_sysinfo}, - {"uri", cmdURI, NULL, info_uri}, - {NULL, NULL, NULL, NULL} + {"capabilities", cmdCapabilities, NULL, info_capabilities, 0}, + {"connect", cmdConnect, opts_connect, info_connect, + VSH_CMD_FLAG_NOCONNECT}, + {"freecell", cmdFreecell, opts_freecell, info_freecell, 0}, + {"hostname", cmdHostname, NULL, info_hostname, 0}, + {"nodeinfo", cmdNodeinfo, NULL, info_nodeinfo, 0}, + {"qemu-monitor-command", cmdQemuMonitorCommand, opts_qemu_monitor_command, + info_qemu_monitor_command, 0}, + {"sysinfo", cmdSysinfo, NULL, info_sysinfo, 0}, + {"uri", cmdURI, NULL, info_uri, 0}, + {NULL, NULL, NULL, NULL, 0} }; static const vshCmdGrp cmdGroups[] = { @@ -11380,7 +11447,8 @@ vshCommandRun(vshControl *ctl, const vshCmd *cmd) struct timeval before, after; bool enable_timing = ctl->timing; - if ((ctl->conn == NULL) || (disconnected != 0)) + if ((ctl->conn == NULL || disconnected) && + !(cmd->def->flags & VSH_CMD_FLAG_NOCONNECT)) vshReconnect(ctl); if (enable_timing) @@ -11840,19 +11908,22 @@ vshInit(vshControl *ctl) if (virEventRegisterDefaultImpl() < 0) return FALSE; - ctl->conn = virConnectOpenAuth(ctl->name, - virConnectAuthPtrDefault, - ctl->readonly ? VIR_CONNECT_RO : 0); - + if (ctl->name) { + ctl->conn = virConnectOpenAuth(ctl->name, + virConnectAuthPtrDefault, + ctl->readonly ? VIR_CONNECT_RO : 0); - /* This is not necessarily fatal. All the individual commands check - * vshConnectionUsability, except ones which don't need a connection - * such as "help". - */ - if (!ctl->conn) { - virshReportError(ctl); - vshError(ctl, "%s", _("failed to connect to the hypervisor")); - return FALSE; + /* Connecting to a named connection must succeed, but we delay + * connecting to the default connection until we need it + * (since the first command might be 'connect' which allows a + * non-default connection, or might be 'help' which needs no + * connection). + */ + if (!ctl->conn) { + virshReportError(ctl); + vshError(ctl, "%s", _("failed to connect to the hypervisor")); + return FALSE; + } } return TRUE; -- 1.7.4

1 0

[libvirt] [PATCH v2] domain.rng vs. formatdomain.html#elementsUSB
by Philipp Hahn 14 Mar '11

14 Mar '11

The Relax-NG schema for domains regarding <hostdev> doesn't match what's implemented in src/conf/domain_conf.c#virDomainHostdevDefFormat(): The implementation only requires @type, but the schema currently either required none or all three attributes (@mode, @type, and @managed) to be defined together, because they are declared in the same <optional)-section. (@managed is currently even undocumented on <http://libvirt.org/formatdomain.html#elementsUSB>). Thus the following minimal <hostdev>-example fails to validate: <domain type='test'> <name>N</name> <memory>4096</memory> <bootloader>/bin/false</bootloader> <os> <type arch='x86_64' machine='xenpv'>linux</type> </os> <devices> <hostdev type='pci'> <source> <address bus='0x06' slot='0x00' function='0x0'/> </source> </hostdev> </devices> </domain> The schema is changed to match the current implementation: 1. @mode is optional (which defaults to 'subsystem') 2. @type is required 3. @managed is optional (which defaults to 'no') Signed-off-by: Philipp Hahn <hahn(a)univention.de> --- docs/schemas/domain.rng | 14 ++++++++------ 1 files changed, 8 insertions(+), 6 deletions(-) diff --git a/docs/schemas/domain.rng b/docs/schemas/domain.rng index 8b215f3..21c4380 100644 --- a/docs/schemas/domain.rng +++ b/docs/schemas/domain.rng @@ -1731,12 +1731,14 @@ <value>capabilities</value> </choice> </attribute> - <attribute name="type"> - <choice> - <value>usb</value> - <value>pci</value> - </choice> - </attribute> + </optional> + <attribute name="type"> + <choice> + <value>usb</value> + <value>pci</value> + </choice> + </attribute> + <optional> <attribute name="managed"> <choice> <value>yes</value> -- 1.7.1

2 5

[libvirt] [PATCH] audit: eliminate potential null pointer deref when auditing macvtap devices
by Laine Stump 14 Mar '11

14 Mar '11

The newly added call to qemuAuditNetDevice in qemuPhysIfaceConnect was assuming that res_ifname (the name of the macvtap device) was always valid, but this isn't the case. If openMacvtapTap fails, it always returns NULL, which would result in a segv. Since the audit log only needs a record of devices that are actually sent to qemu, and a failure to open the macvtap device means that no device will be sent to qemu, we can solve this problem by only doing the audit if openMacvtapTap is successful (in which case res_ifname is guaranteed valid). --- src/qemu/qemu_command.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 8ca656a..72f55d0 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -128,8 +128,8 @@ qemuPhysIfaceConnect(virDomainDefPtr def, net->data.direct.mode, vnet_hdr, def->uuid, &net->data.direct.virtPortProfile, &res_ifname, vmop); - qemuAuditNetDevice(def, net, res_ifname, rc >= 0); if (rc >= 0) { + qemuAuditNetDevice(def, net, res_ifname, true); VIR_FREE(net->ifname); net->ifname = res_ifname; } -- 1.7.3.4

2 2

[libvirt] [ruby-libvirt PATCH] Fix compile error due to missing semicolon
by Matthias Bolte 14 Mar '11

14 Mar '11

I pushed this under the trivial build breaker rule. Matthias

2 1

[libvirt] [PATCH] python: Use hardcoded python path in libvirt.py
by Jiri Denemark 14 Mar '11

14 Mar '11

This partially reverts (and fixes that part in a different way) commit e4384459c93e3e786aa483c7f077d1d22148f689, which replaced all examples or scripts used during build to generate other files. However, python bindings module is compiled and linked against a specific python discovered or explicitly provided in configure phase. Thus libvirt.py which is generated and installed into the system we should use the same python binary for which the module has been built. The hunk in Makefile.am replaces $(srcdir) with $(PYTHON), which might seem wrong but it is not. generator.py didn't use any of its command line arguments so passing $(srcdir) to it was redundant. --- python/Makefile.am | 2 +- python/generator.py | 7 ++++++- python/libvirt-override.py | 5 ----- 3 files changed, 7 insertions(+), 7 deletions(-) diff --git a/python/Makefile.am b/python/Makefile.am index eda2866..432ad70 100644 --- a/python/Makefile.am +++ b/python/Makefile.am @@ -53,7 +53,7 @@ GENERATED= libvirt-export.c \ libvirt.py generated.stamp: $(srcdir)/$(GENERATE) $(API_DESC) - $(PYTHON) $(srcdir)/$(GENERATE) $(srcdir) + $(PYTHON) $(srcdir)/$(GENERATE) $(PYTHON) touch $@ $(GENERATED): generated.stamp diff --git a/python/generator.py b/python/generator.py index 6f4bb40..4fa4f65 100755 --- a/python/generator.py +++ b/python/generator.py @@ -14,6 +14,11 @@ import re if __name__ == "__main__": # launched as a script srcPref = os.path.dirname(sys.argv[0]) + if len(sys.argv) > 1: + python = sys.argv[1] + else: + print "Python binary not specified" + sys.exit(1) else: # imported srcPref = os.path.dirname(__file__) @@ -1012,7 +1017,7 @@ def buildWrappers(): classes = open("libvirt.py", "w") extra = open(os.path.join(srcPref,"libvirt-override.py"), "r") - classes.write("#!/usr/bin/env python\n") + classes.write("#! " + python + " -i\n") classes.write("#\n") classes.write("# WARNING WARNING WARNING WARNING\n") classes.write("#\n") diff --git a/python/libvirt-override.py b/python/libvirt-override.py index 909ebe3..d544a0e 100644 --- a/python/libvirt-override.py +++ b/python/libvirt-override.py @@ -2,11 +2,6 @@ # Manually written part of python bindings for libvirt # -# Specify -i commandline option after python was started -if __name__ == "__main__": - import os - os.environ["PYTHONINSPECT"] = "1" - # On cygwin, the DLL is called cygvirtmod.dll try: import libvirtmod -- 1.7.4.1

2 2

[libvirt] [PATCH] virsh: Allow starting domains by UUID
by Jiri Denemark 14 Mar '11

14 Mar '11

--- tools/libvirt-guests.init.sh | 2 +- tools/virsh.c | 3 ++- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/tools/libvirt-guests.init.sh b/tools/libvirt-guests.init.sh index 8823d06..e37e55f 100644 --- a/tools/libvirt-guests.init.sh +++ b/tools/libvirt-guests.init.sh @@ -164,7 +164,7 @@ start() { if $guest_running; then gettext "already active"; echo else - retval run_virsh $uri start "$name" >/dev/null && \ + retval run_virsh $uri start "$guest" >/dev/null && \ gettext "done"; echo fi fi diff --git a/tools/virsh.c b/tools/virsh.c index a5e9c4f..b42aac4 100644 --- a/tools/virsh.c +++ b/tools/virsh.c @@ -1402,7 +1402,8 @@ cmdStart(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; - if (!(dom = vshCommandOptDomainBy(ctl, cmd, NULL, VSH_BYNAME))) + if (!(dom = vshCommandOptDomainBy(ctl, cmd, NULL, + VSH_BYNAME | VSH_BYUUID))) return FALSE; if (virDomainGetID(dom) != (unsigned int)-1) { -- 1.7.4.1

2 2

[libvirt] [PATCH] network driver: don't send default route to clients on isolated networks
by Laine Stump 14 Mar '11

14 Mar '11

Normally dnsmasq will send a default route (the address of the host in the network definition) to any client requesting an address via DHCP. On an isolated network this makes no sense, as we have iptables to prevent any traffic going out via that interface, so anything sent that way would be dropped anyway. This extra/unusable default route becomes problematic if you have setup a guest with multiple network interfaces, with one connected to an isolated network and another that provides connectivity to the outside (example - one interface directly connecting to a physical interface via macvtap, with a second connected to an isolated network so that the host and guest can communicate (macvtap doesn't support guest<->host communication without an external switch that supports vepa, or reflecting all traffic back)). In this case, if the guest chooses the default route of the isolated network, the guest will not be able to get network traffic beyond the host. To prevent dnsmasq from sending a default route, you can tell it to send 0 bytes of data for the default route option (option number 3) with --dhcp-option=3 (normally the data to send for the option would follow the option number; no extra data means "don't send this option"). I have checked on RHEL5 (a good representative of the oldest supported libvirt platforms) and its version of dnsmasq (2.45) does support --dhcp-option, so this shouldn't create any compatibility problems. --- src/network/bridge_driver.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c index ca2ae8d..6a02df1 100644 --- a/src/network/bridge_driver.c +++ b/src/network/bridge_driver.c @@ -490,6 +490,13 @@ networkBuildDnsmasqArgv(virNetworkObjPtr network, "--except-interface", "lo", NULL); + /* If this is an isolated network, set the default route option + * (3) to be empty to avoid setting a default route that's + * guaranteed to not work. + */ + if (network->def->forwardType == VIR_NETWORK_FORWARD_NONE) + virCommandAddArg(cmd, "--dhcp-option=3"); + /* * --interface does not actually work with dnsmasq < 2.47, * due to DAD for ipv6 addresses on the interface. -- 1.7.3.4

2 1

[libvirt] [PATCH] CVE-2011-1146
by Guido Günther 14 Mar '11

14 Mar '11

Hi, attached patch adds the missing checks for https://bugzilla.redhat.com/show_bug.cgi?id=683650 O.k. to apply? Cheers, -- Guido

2 3

[libvirt] [v3] qemu: Support vram for video of qxl type
by Osier Yang 14 Mar '11

14 Mar '11

For qemu names the primary vga as "qxl-vga": 1) if vram is specified for 2nd qxl device: -vga qxl -global qxl-vga.vram_size=$SIZE \ -device qxl,id=video1,vram_size=$SIZE,... 2) if vram is not specified for 2nd qxl device, (use the default set by global): -vga qxl -global qxl-vga.vram_size=$SIZE \ -device qxl,id=video1,... For qemu names all qxl devices as "qxl": 1) if vram is specified for 2nd qxl device: -vga qxl -global qxl.vram_size=$SIZE \ -device qxl,id=video1,vram_size=$SIZE ... 2) if vram is not specified for 2nd qxl device: -vga qxl -global qxl-vga.vram_size=$SIZE \ -device qxl,id=video1,... "-global" is the only way to define vram_size for the primary qxl device, regardless of how qemu names it, (It's not good a good way, as original idea of "-global" is to set a global default for a driver property, but to specify vram for first qxl device, we have to use it). For other qxl devices, as they are represented by "-device", could specify it directly and seperately for each, and it overrides the default set by "-global" if specified. v1 - v2: * modify "virDomainVideoDefaultRAM" so that it returns 16M as the default vram_size for qxl device. * vram_size * 1024 (qemu accepts bytes for vram_size). * apply default vram_size for qxl device for which vram_size is not specified. * modify "graphics-spice" tests (more sensiable vram_size) * Add an argument of virDomainDefPtr type for qemuBuildVideoDevStr, to use virDomainVideoDefaultRAM in qemuBuildVideoDevStr). v2 - v3: * Modify default video memory size for qxl device from 16M to 24M * Update codes to be consistent with changes on qemu_capabilities.* --- src/conf/domain_conf.c | 4 ++ src/qemu/qemu_capabilities.c | 2 + src/qemu/qemu_capabilities.h | 1 + src/qemu/qemu_command.c | 18 ++++++++++ tests/qemuhelptest.c | 1 + .../qemuxml2argv-graphics-spice-qxl-vga.args | 7 ++++ .../qemuxml2argv-graphics-spice-qxl-vga.xml | 36 ++++++++++++++++++++ .../qemuxml2argv-graphics-spice.args | 4 +- .../qemuxml2argv-graphics-spice.xml | 4 +- tests/qemuxml2argvtest.c | 4 ++ tests/qemuxml2xmltest.c | 1 + 11 files changed, 78 insertions(+), 4 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.xml diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index c8350c6..16e1291 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -4167,6 +4167,10 @@ virDomainVideoDefaultRAM(virDomainDefPtr def, /* Original Xen PVFB hardcoded to 4 MB */ return 4 * 1024; + case VIR_DOMAIN_VIDEO_TYPE_QXL: + /* QEMU use 64M as the minimal video video memory for qxl device */ + return 64 * 1024; + default: return 0; } diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index 477924d..d8aa9cd 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -1122,6 +1122,8 @@ qemuCapsParseDeviceStr(const char *str, virBitmapPtr flags) } if (strstr(str, "virtio-net-pci.tx=")) qemuCapsSet(flags, QEMU_CAPS_VIRTIO_TX_ALG); + if (strstr(str, "name \"qxl-vga\"")) + qemuCapsSet(flags, QEMU_CAPS_DEVICE_QXL_VGA); return 0; } diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h index a61b088..68c5958 100644 --- a/src/qemu/qemu_capabilities.h +++ b/src/qemu/qemu_capabilities.h @@ -94,6 +94,7 @@ enum qemuCapsFlags { QEMU_CAPS_CHARDEV_SPICEVMC = 56, /* newer -chardev spicevmc */ QEMU_CAPS_DEVICE_SPICEVMC = 57, /* older -device spicevmc*/ QEMU_CAPS_VIRTIO_TX_ALG = 58, /* -device virtio-net-pci,tx=string */ + QEMU_CAPS_DEVICE_QXL_VGA = 59, /* Is the primary and vga campatible qxl device named qxl-vga? */ QEMU_CAPS_LAST, /* this must always be the last item */ }; diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index fa60abe..198a4e2 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -1931,6 +1931,12 @@ qemuBuildVideoDevStr(virDomainVideoDefPtr video, virBufferVSprintf(&buf, "%s", model); virBufferVSprintf(&buf, ",id=%s", video->info.alias); + + if (video->type == VIR_DOMAIN_VIDEO_TYPE_QXL) { + /* QEMU accepts bytes for vram_size. */ + virBufferVSprintf(&buf, ",vram_size=%u", video->vram * 1024); + } + if (qemuBuildDeviceAddressStr(&buf, &video->info, qemuCaps) < 0) goto error; @@ -4033,6 +4039,18 @@ qemuBuildCommandLine(virConnectPtr conn, } virCommandAddArgList(cmd, "-vga", vgastr, NULL); + + if (def->videos[0]->type == VIR_DOMAIN_VIDEO_TYPE_QXL) { + if (def->videos[0]->vram && + qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE)) { + if (qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE_QXL_VGA)) + virCommandAddArgFormat(cmd, "-global qxl-vga.vram_size=%u", + def->videos[0]->vram * 1024); + else + virCommandAddArgFormat(cmd, "-global qxl.vram_size=%u", + def->videos[0]->vram * 1024); + } + } } } else { diff --git a/tests/qemuhelptest.c b/tests/qemuhelptest.c index 335364f..c86c578 100644 --- a/tests/qemuhelptest.c +++ b/tests/qemuhelptest.c @@ -489,6 +489,7 @@ mymain(int argc, char **argv) QEMU_CAPS_DRIVE_AIO, QEMU_CAPS_CCID_PASSTHRU, QEMU_CAPS_CHARDEV_SPICEVMC, + QEMU_CAPS_DEVICE_QXL_VGA, QEMU_CAPS_VIRTIO_TX_ALG); return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE; diff --git a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.args b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.args new file mode 100644 index 0000000..18013a5 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.args @@ -0,0 +1,7 @@ +LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test QEMU_AUDIO_DRV=spice \ +/usr/bin/qemu -S -M pc -m 214 -smp 1 -nodefaults -monitor \ +unix:/tmp/test-monitor,server,nowait -no-acpi -boot c -hda \ +/dev/HostVG/QEMUGuest1 -usb -spice port=5903,tls-port=5904,addr=127.0.0.1,\ +x509-dir=/etc/pki/libvirt-spice,tls-channel=main,plaintext-channel=inputs -vga \ +qxl -global qxl-vga.vram_size=33554432 -device qxl,id=video1,vram_size=67108864,bus=pci.0,addr=0x4 \ +-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 diff --git a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.xml b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.xml new file mode 100644 index 0000000..a38550c --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.xml @@ -0,0 +1,36 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory>219136</memory> + <currentMemory>219136</currentMemory> + <vcpu>1</vcpu> + <os> + <type arch='i686' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu</emulator> + <disk type='block' device='disk'> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='ide'/> + <address type='drive' controller='0' bus='0' unit='0'/> + </disk> + <controller type='ide' index='0'/> + <input type='mouse' bus='ps2'/> + <graphics type='spice' port='5903' tlsPort='5904' autoport='no' listen='127.0.0.1'> + <channel name='main' mode='secure'/> + <channel name='inputs' mode='insecure'/> + </graphics> + <video> + <model type='qxl' vram='32768' heads='1'/> + </video> + <video> + <model type='qxl' vram='65536' heads='1'/> + </video> + <memballoon model='virtio'/> + </devices> +</domain> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice.args b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice.args index a8fb243..c788bb6 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice.args +++ b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice.args @@ -3,5 +3,5 @@ LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test QEMU_AUDIO_DRV=spice \ unix:/tmp/test-monitor,server,nowait -no-acpi -boot c -hda \ /dev/HostVG/QEMUGuest1 -usb -spice port=5903,tls-port=5904,addr=127.0.0.1,\ x509-dir=/etc/pki/libvirt-spice,tls-channel=main,plaintext-channel=inputs -vga \ -qxl -device qxl,id=video1,bus=pci.0,addr=0x4 -device virtio-balloon-pci,\ -id=balloon0,bus=pci.0,addr=0x3 +qxl -global qxl.vram_size=18874368 -device qxl,id=video1,vram_size=33554432,bus=pci.0,addr=0x4 \ +-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 diff --git a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice.xml b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice.xml index fc9f3fe..5d46509 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice.xml +++ b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice.xml @@ -26,10 +26,10 @@ <channel name='inputs' mode='insecure'/> </graphics> <video> - <model type='qxl' vram='65536' heads='1'/> + <model type='qxl' vram='18432' heads='1'/> </video> <video> - <model type='qxl' vram='65536' heads='1'/> + <model type='qxl' vram='32768' heads='1'/> </video> <memballoon model='virtio'/> </devices> diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index d2864ef..c1329fa 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -357,6 +357,10 @@ mymain(int argc, char **argv) DO_TEST("graphics-spice", false, QEMU_CAPS_VGA, QEMU_CAPS_VGA_QXL, QEMU_CAPS_DEVICE, QEMU_CAPS_SPICE); + DO_TEST("graphics-spice-qxl-vga", false, + QEMU_CAPS_VGA, QEMU_CAPS_VGA_QXL, + QEMU_CAPS_DEVICE, QEMU_CAPS_SPICE, + QEMU_CAPS_DEVICE_QXL_VGA); DO_TEST("input-usbmouse", false, NONE); DO_TEST("input-usbtablet", false, NONE); diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c index 67e721b..c0c36ad 100644 --- a/tests/qemuxml2xmltest.c +++ b/tests/qemuxml2xmltest.c @@ -152,6 +152,7 @@ mymain(int argc, char **argv) DO_TEST("graphics-sdl"); DO_TEST("graphics-sdl-fullscreen"); DO_TEST("graphics-spice"); + DO_TEST("graphics-spice-qxl-vga"); DO_TEST("input-usbmouse"); DO_TEST("input-usbtablet"); DO_TEST("input-xen"); -- 1.7.4

3 6

[libvirt] [PATCH] virsh: Free stream when shutdown console
by Osier Yang 14 Mar '11

14 Mar '11

Otherwise connection of hypervisor driver will be leaked when one shutdown the guest in console. e.g. [root@localhost]# init 0 ...... init: Re-executing /sbin/init Halting system... Power down. error: Failed to disconnect from the hypervisor, 1 leaked reference(s) --- tools/console.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/tools/console.c b/tools/console.c index b9dd268..01d8bd1 100644 --- a/tools/console.c +++ b/tools/console.c @@ -91,6 +91,8 @@ static void virConsoleShutdown(virConsolePtr con) { con->quit = true; + if (con->st) + virStreamFree(con->st); virStreamEventRemoveCallback(con->st); if (con->stdinWatch != -1) virEventRemoveHandle(con->stdinWatch); -- 1.7.4

2 2

[libvirt] libvirt configuration problem
by Onkar Mahajan 12 Mar '11

12 Mar '11

Hi , I am getting errors while configuring libvirt to compile it from source. There is a error in libnl checking for UDEV... no checking whether to compile with macvtap support... yes checking whether to compile with virtual port support... no checking for LIBNL... no configure: error: libnl-devel >= 1.1 is required for macvtap support I have already installed the libnl library in /lib/ [root@localhost lib]# ls libnl* libnl.a libnl-cli.so.2 libnl-genl.so libnl-nf.a libnl-nf.so.2.0.0 libnl-route.so.2 libnl.so.2.0.0 libnl-cli.a libnl-cli.so.2.0.0 libnl-genl.so.2 libnl-nf.la libnl-route.a libnl-route.so.2.0.0 libnl-cli.la libnl-genl.a libnl-genl.so.2.0.0 libnl-nf.so libnl-route.la libnl.so libnl-cli.so libnl-genl.la libnl.la libnl-nf.so.2 libnl-route.so libnl.so.2 Please help me !! Regards, Onkar

2 1

[libvirt] [PATCH 0/3] Fix a couple of virtual network dnsmasq bugs
by Laine Stump 12 Mar '11

12 Mar '11

(sorry for the previous message sent from "root" - I mistakenly ran git send-email from a shell that was su'ed, and realized my mistake midstream) The first of these bugs is a regression that I didn't notice until it was reported on libvirt-users list a couple days ago. The second is a long-standing problem that I'm sure I saw discussed either on one of the libvirt lists, or in a RHEL, Fedora, or upstream libvirt bugzilla report, but can't find it right now.

2 10

[libvirt] login and password in connection string for vmware hypervisors...
by john alexander sanabria ordonez 11 Mar '11

11 Mar '11

Hi, I want submit commands against a VMWare hypervisor via virsh in a non-interactive way. I can connect to my [remote] hypervisor via virsh as follows: virsh -c gsx://ic-p19-01?no_verify=1 then, it asks me for login and [root] password and I'm in. What mechanism can be used to submit commands, e.g. virsh -c gsx://localhost?no_verify list --all, with no password at all? A modified version of the connection string is required? what is the structure of that connection string? Additional parameters to the 'virsh' command? Thank you,

2 1

[libvirt] [PATCH] Include stdint.h in libvirt.h for INT64_MAX
by Matthias Bolte 11 Mar '11

11 Mar '11

I found this one while trying to compile ruby-libvirt. Matthias

4 8

[libvirt] documenting the 802.1Qbg parameters of a 'direct' interface
by Gerhard Stenzel 11 Mar '11

11 Mar '11

This patchs adds documentation about the 802.1Qbg related parameters of the virtualport element in a 'direct' interface definition. Signed-off-by: Gerhard Stenzel <gerhard.stenzel(a)de.ibm.com> patch attached to avoid line wrapping -- Best regards, Gerhard Stenzel, ----------------------------------------------------------------------------------------------------------------------------------- IBM Deutschland Research & Development GmbH Vorsitzender des Aufsichtsrats: Martin Jetter Geschäftsführung: Dirk Wittkopp Sitz der Gesellschaft: Böblingen Registergericht: Amtsgericht Stuttgart, HRB 243294

3 4

[libvirt] [PATCH 0/3] Fix a couple of virtual network dnsmasq bugs
by root 11 Mar '11

11 Mar '11

The first of these bugs is a regression that I didn't notice until it was reported on libvirt-users list a couple days ago. The second is a long-standing problem that I'm sure I saw discussed either on one of the libvirt lists, or in a RHEL, Fedora, or upstream libvirt bugzilla report, but can't find it right now.

1 0

[libvirt] [PATCH] RFC: support "vram" and "heads" for qxl vga
by Osier Yang 11 Mar '11

11 Mar '11

qemu command line to specify "vram": -global qxl.vram_size=uint qemu command line to specify "heads", (no need of '-device' for the first 'head'): -device qxl,id=qxl-N (N is natural number) This patch is just about the command line building, still left work on the command line parsing (hacking on "qemuBuildCommandLine"), as I'm even not sure if it's the right way to build the command line. Any advise/idea is appreciated. --- src/qemu/qemu_capabilities.c | 5 ++++- src/qemu/qemu_capabilities.h | 3 ++- src/qemu/qemu_command.c | 14 ++++++++++++++ 3 files changed, 20 insertions(+), 2 deletions(-) diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index cc5552c..78bcb4c 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -942,9 +942,12 @@ qemuCapsComputeCmdFlags(const char *help, * two features. The benefits of JSON mode now outweigh * the downside. */ - if (version >= 13000) + if (version >= 13000) flags |= QEMUD_CMD_FLAG_MONITOR_JSON; + if (strstr(help, "-global")) + flags |= QEMUD_CMD_FLAG_GLOBAL; + return flags; } diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h index a130a4f..b1feb87 100644 --- a/src/qemu/qemu_capabilities.h +++ b/src/qemu/qemu_capabilities.h @@ -91,7 +91,8 @@ enum qemuCapsFlags { QEMUD_CMD_FLAG_CCID_EMULATED = (1LL << 54), /* -device ccid-card-emulated */ QEMUD_CMD_FLAG_CCID_PASSTHRU = (1LL << 55), /* -device ccid-card-passthru */ QEMUD_CMD_FLAG_CHARDEV_SPICEVMC = (1LL << 56), /* newer -chardev spicevmc */ - QEMUD_CMD_FLAG_DEVICE_SPICEVMC = (1LL << 57), /* older -device spicevmc*/ + QEMUD_CMD_FLAG_DEVICE_SPICEVMC = (1LL << 57), /* older -device spicevmc */ + QEMUD_CMD_FLAG_GLOBAL = (1LL << 58), /* Is -global available */ }; virCapsPtr qemuCapsInit(virCapsPtr old_caps); diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 1687203..92af6cb 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -3964,6 +3964,20 @@ qemuBuildCommandLine(virConnectPtr conn, } virCommandAddArgList(cmd, "-vga", vgastr, NULL); + + if (def->videos[0]->type == VIR_DOMAIN_VIDEO_TYPE_QXL) { + if (def->videos[0]->vram && + (qemuCmdFlags & QEMUD_CMD_FLAG_GLOBAL)) { + virCommandAddArgFormat(cmd, "-global qxl.vram_size=%u", + def->videos[0]->vram); + } + + if (def->videos[0]->heads > 0) { + for (i = 0; i < def->videos[0]->heads - 1; i++) { + virCommandAddArgFormat(cmd, "-device %s,id=qxl-%d", vgastr, i+1); + } + } + } } } else { -- 1.7.4

3 5

[libvirt] [PATCH 2/2] Ignore backing file errors in FS storage pool (v3)
by Philipp Hahn 11 Mar '11

11 Mar '11

Currently a single storage volume with a broken backing file will disable the whole storage pool. This can happen when the backing file is on some unavailable network storage or if the backing volume is deleted, while the storage volumes using it are not. Since the storage pool then can not be re-activated, re-creating the missing or deleting the now useless volumes using libvirt only is impossible. To "fix" this case, all errors detected during storage pool activation are now (silently) ignored. Errors are still logged by the called functions, which have more knowledge on the detailed error condition. To reproduce: dir=$(mktemp -d) virsh pool-create-as tmp dir '' '' '' '' "$dir" virsh vol-create-as --format qcow2 tmp back 1G virsh vol-create-as --format qcow2 --backing-vol-format qcow2 --backing-vol back tmp cow 1G virsh vol-delete --pool tmp back virsh pool-refresh tmp After the last step, the pool will be gone (because it was not persistent). As long as the now broken image stays in the directory, you will not be able to re-create or re-start the pool. Signed-off-by: Philipp Hahn <hahn(a)univention.de> --- src/storage/storage_backend_fs.c | 10 +++++----- 1 files changed, 5 insertions(+), 5 deletions(-)

3 5

[libvirt] Question about PHP licencing for libvirt-php (php-libvirt for Fedora)
by Michal Novotny 11 Mar '11

11 Mar '11

Hi, I don't know who's the right person to ask so I'm posting this into the libvir-list. We're going to have the libvirt-php package in Fedora (but renamed to php-libvirt only) but I don't know about the licencing. The licence in the SPEC file (by Lyre) is set to "PHP" however the licence file describes the GPL licence. My question is whether somebody does know whether it's OK to write a PHP extension under GPL licence or whether we need the PHP licence for this. Anybody knows? Thanks a lot for your reply, Michal -- Michal Novotny<minovotn(a)redhat.com>, RHCE Virtualization Team (xen userspace), Red Hat

8 21

[libvirt] [PATCH 0/6] new virsh command "blkiotune" support
by Gui Jianfeng 11 Mar '11

11 Mar '11

Hi All, This series implements a new command "blkiotune" for virsh. A lot of code borrows from memtune. You are able to tune blkio cgroup tunables by this command as follows. Show tunables #virsh blkiotune My_guest weight : 900 Tune tunables(Set IO weight) #virsh blkiotune My_guest --weight 500 #virsh blkiotune My_guest weight : 500 Thanks, Gui

5 47

[libvirt] Fix umask on error path in qemudListenUnix
by Guido Günther 10 Mar '11

10 Mar '11

Hi, Attached patch makes sure we reset the umask in qemudListenUnix on the error path. O.k. to apply? -- Guido

2 2

[libvirt] [PATCHv3 0/2] more audit patches - audit network device fds
by Eric Blake 10 Mar '11

10 Mar '11

I hope this closes out my audit series. As promised in https://www.redhat.com/archives/libvir-list/2011-March/msg00415.html, here's the updated and tested network device auditing patches. This time, I've completed testing: in virt-manager, I attached a hypervisor default (non-virtio, so no /dev/vhost-net), then detached it, then attached a virtio interface in its place, and got the following audit messages: type=VIRT_RESOURCE msg=audit(1299702937.924:81114): user pid=499 uid=0 auid=500 ses=1 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='resrc=net reason=open vm="fedora_12" uuid=51c6fc83-65a4-e627-b698-042b00145201 net='52:54:00:80:C6:06' path="/dev/net/tun" rdev=0A:C8: exe="/home/dummy/libvirt/daemon/.libs/lt-libvirtd" hostname=? addr=? terminal=pts/0 res=success' type=VIRT_RESOURCE msg=audit(1299702937.928:81115): user pid=499 uid=0 auid=500 ses=1 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='resrc=net reason=attach vm="fedora_12" uuid=51c6fc83-65a4-e627-b698-042b00145201 old-net='?' new-net='52:54:00:80:C6:06': exe="/home/dummy/libvirt/daemon/.libs/lt-libvirtd" hostname=? addr=? terminal=pts/0 res=success' type=VIRT_RESOURCE msg=audit(1299702995.378:81117): user pid=499 uid=0 auid=500 ses=1 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='resrc=net reason=detach vm="fedora_12" uuid=51c6fc83-65a4-e627-b698-042b00145201 old-net='52:54:00:80:C6:06' new-net='?': exe="/home/dummy/libvirt/daemon/.libs/lt-libvirtd" hostname=? addr=? terminal=pts/0 res=success' type=VIRT_RESOURCE msg=audit(1299703012.919:81119): user pid=499 uid=0 auid=500 ses=1 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='resrc=net reason=open vm="fedora_12" uuid=51c6fc83-65a4-e627-b698-042b00145201 net='52:54:00:31:26:F9' path="/dev/net/tun" rdev=0A:C8: exe="/home/dummy/libvirt/daemon/.libs/lt-libvirtd" hostname=? addr=? terminal=pts/0 res=success' type=VIRT_RESOURCE msg=audit(1299703012.919:81120): user pid=499 uid=0 auid=500 ses=1 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='resrc=net reason=open vm="fedora_12" uuid=51c6fc83-65a4-e627-b698-042b00145201 net='52:54:00:31:26:F9' path="/dev/vhost-net" rdev=0A:39: exe="/home/dummy/libvirt/daemon/.libs/lt-libvirtd" hostname=? addr=? terminal=pts/0 res=success' type=VIRT_RESOURCE msg=audit(1299703013.002:81121): user pid=499 uid=0 auid=500 ses=1 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='resrc=net reason=attach vm="fedora_12" uuid=51c6fc83-65a4-e627-b698-042b00145201 old-net='?' new-net='52:54:00:31:26:F9': exe="/home/dummy/libvirt/daemon/.libs/lt-libvirtd" hostname=? addr=? terminal=pts/0 res=success' Changes in v3: rename the audit method to qemuAuditNetDevice, and insert audit points after all attempts to open a network device that might later be passed to a qemu -netdev; document why I didn't audit closeout of said fds Eric Blake (2): qemu: support vhost in attach-interface audit: audit use of /dev/net/tun, /dev/tapN, /dev/vhost-net src/qemu/qemu_audit.c | 41 ++++++++++++++++++++++++++++++++ src/qemu/qemu_audit.h | 5 ++++ src/qemu/qemu_command.c | 43 ++++++++++++++++----------------- src/qemu/qemu_command.h | 14 ++++++++--- src/qemu/qemu_hotplug.c | 60 ++++++++++++++++++++++++++++++++++++++++------ 5 files changed, 129 insertions(+), 34 deletions(-) -- 1.7.4

2 9

[libvirt] [PATCH v3 0/5] qemu: Support domain snapshots with current QMP
by Jiri Denemark 10 Mar '11

10 Mar '11

This version 3 gets back to the second alternative for HMP passthrough implementation provided in version 1. Changes made sinve that version 1 was posted are: - separate HMP passthrough infrastructure into a standalone patch - use qemuMonitorHMPCommand* and qemuMonitorTextCommand* instead of just qemuMonitorCommand* to make it obvious they deal with HMP/text monitor - implement HMP fallback for {load,del}vm in addition to savevm - escape snapshot name Jiri Denemark (5): qemu: Setup infrastructure for HMP passthrough qemu: Rename qemuMonitorCommand{,WithFd} as qemuMonitorHMP* qemu: Rename qemuMonitorCommandWithHandler as qemuMonitorText* qemu: Fallback to HMP for snapshot commands qemu: Escape snapshot name passed to {save,load,del}vm src/qemu/qemu_monitor.c | 12 +++ src/qemu/qemu_monitor.h | 8 ++- src/qemu/qemu_monitor_json.c | 121 ++++++++++++++++++++++--------- src/qemu/qemu_monitor_json.h | 5 ++ src/qemu/qemu_monitor_text.c | 163 ++++++++++++++++++++++-------------------- src/qemu/qemu_monitor_text.h | 5 ++ 6 files changed, 200 insertions(+), 114 deletions(-) -- 1.7.4.1

2 12

[libvirt] [PATCH] qemu: Fix warnings in event handlers
by Jiri Denemark 10 Mar '11

10 Mar '11

Some qemu monitor event handlers were issuing inadequate warning when virDomainSaveStatus() failed. They copied the message from I/O error handler without customizing it to provide better information on why virDomainSaveStatus() was called. --- src/qemu/qemu_process.c | 15 ++++++++++----- 1 files changed, 10 insertions(+), 5 deletions(-) diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index ee1b4c4..4414a7c 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -339,15 +339,18 @@ qemuProcessHandleStop(qemuMonitorPtr mon ATTRIBUTE_UNUSED, virDomainObjLock(vm); if (vm->state == VIR_DOMAIN_RUNNING) { - VIR_DEBUG("Transitioned guest %s to paused state due to unknown event", vm->def->name); + VIR_DEBUG("Transitioned guest %s to paused state due to unknown event", + vm->def->name); vm->state = VIR_DOMAIN_PAUSED; event = virDomainEventNewFromObj(vm, VIR_DOMAIN_EVENT_SUSPENDED, 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); + if (virDomainSaveStatus(driver->caps, driver->stateDir, vm) < 0) { + VIR_WARN("Unable to save status on vm %s after state change", + vm->def->name); + } } virDomainObjUnlock(vm); @@ -412,8 +415,10 @@ qemuProcessHandleWatchdog(qemuMonitorPtr mon ATTRIBUTE_UNUSED, VIR_DOMAIN_EVENT_SUSPENDED, 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); + if (virDomainSaveStatus(driver->caps, driver->stateDir, vm) < 0) { + VIR_WARN("Unable to save status on vm %s after watchdog event", + vm->def->name); + } } if (vm->def->watchdog->action == VIR_DOMAIN_WATCHDOG_ACTION_DUMP) { -- 1.7.4.1

2 2

[libvirt] [PATCH 0/3] Support domain snapshots with current QMP whithout savevm command
by Jiri Denemark 10 Mar '11

10 Mar '11

This is quite hacky since it involves falling back to HMP when savevm command is not found in QMP, which is something qemu monitor code was not designed to support. Hence, I'm providing 2 version of the first patch: 1.1/3 and 1.2/3. - 1.1/3 version only touches JSON monitor code but involves copy&paste of the snapshot code from text monitor - 1.2/3 touches more files but doesn't require duplicating the text monitor snapshot implementation into qemu_monitor_json.c. However, it results in somewhat funky call graphs: -> qemuMonitorJSONCreateSnapshot -> qemuMonitorTextCreateSnapshot -> qemuMonitorCommand (a macro expanding to qemuMonitorCommandWithFd) -> qemuMonitorJSONHumanCommandWithFd -> qemuMonitorJSONCommandWithFd The possibility to call qemuMonitorTextCreateSnapshot directly on JSON monitor is implemented by generalizing qemuMonitorCommandWithFd, which now either calls to qemuMonitorJSONHumanCommandWithFd or qemuMonitorTextCommandWithFd (former qemuMonitorCommandWithFd) depending on the monitor type. I prefer version 2 since it reuses text monitor implementation, but other may prefer version 1, which is a bit more local... Jiri Denemark (3): qemu: Fallback to HMP when savevm QMP command is not found qemu: Refactor qemuDomainSnapshotCreateXML qemu: Stop guest CPUs before creating a snapshot -- 1.7.4.1

2 11

[libvirt] [PATCH v2] Make LXC container startup/shutdown/I/O more robust
by Daniel P. Berrange 10 Mar '11

10 Mar '11

The current LXC I/O controller looks for HUP to detect when a guest has quit. This isn't reliable as during initial bootup it is possible that 'init' will close the console and let mingetty re-open it. The shutdown of containers was also flakey because it only killed the libvirt I/O controller and expected container processes to gracefully follow. Change the I/O controller such that when it see HUP or an I/O error, it uses kill($PID, 0) to see if the process has really quit. Change the container shutdown sequence to use the virCgroupKillPainfully function to ensure every really goes away This change makes the use of the 'cpu', 'cpuacct' and 'memory' cgroups controllers compulsory with LXC * docs/drvlxc.html.in: Document that certain cgroups controllers are now mandatory * src/lxc/lxc_controller.c: Check if PID is still alive before quitting on I/O error/HUP * src/lxc/lxc_driver.c: Use virCgroupKillPainfully --- docs/drvlxc.html.in | 18 +++++ src/lxc/lxc_controller.c | 42 +++++++++--- src/lxc/lxc_driver.c | 155 ++++++++++++++++++---------------------------- 3 files changed, 110 insertions(+), 105 deletions(-) diff --git a/docs/drvlxc.html.in b/docs/drvlxc.html.in index 35058c4..3e715b1 100644 --- a/docs/drvlxc.html.in +++ b/docs/drvlxc.html.in @@ -9,6 +9,24 @@ light-weight "application container" which does not have it's own root image. Y start it using </p> +<h2>Cgroups Requirements</h2> + +<p> +The libvirt LXC driver requires that certain cgroups controllers are +mounted on the host OS. The minimum required controllers are 'cpuacct', +'memory' and 'devices', while recommended extra controllers are +'cpu', 'freezer' and 'blkio'. The /etc/cgconfig.conf & cgconfig +init service used to mount cgroups at host boot time. To manually +mount them use. NB, the blkio controller in some kernels will not +allow creation of nested sub-directories which will prevent correct +operation of the libvirt LXC driver. On such kernels the blkio controller +must not be mounted. +</p> + +<pre> + # mount -t cgroup cgroup /dev/cgroup -o cpuacct,memory,devices,cpu,freezer,blkio +</pre> + <h3>Example config version 1</h3> <p></p> <pre> diff --git a/src/lxc/lxc_controller.c b/src/lxc/lxc_controller.c index d2b113c..61e21c3 100644 --- a/src/lxc/lxc_controller.c +++ b/src/lxc/lxc_controller.c @@ -32,6 +32,7 @@ #include <sys/personality.h> #include <unistd.h> #include <paths.h> +#include <errno.h> #include <fcntl.h> #include <signal.h> #include <getopt.h> @@ -120,12 +121,10 @@ static int lxcSetContainerResources(virDomainDefPtr def) virReportSystemError(-rc, _("Unable to set memory limit for domain %s"), def->name); - /* Don't fail if we can't set memory due to lack of kernel support */ - if (rc != -ENOENT) - goto cleanup; + goto cleanup; } - if(def->mem.hard_limit) { + if (def->mem.hard_limit) { rc = virCgroupSetMemoryHardLimit(cgroup, def->mem.hard_limit); if (rc != 0) { virReportSystemError(-rc, @@ -135,7 +134,7 @@ static int lxcSetContainerResources(virDomainDefPtr def) } } - if(def->mem.soft_limit) { + if (def->mem.soft_limit) { rc = virCgroupSetMemorySoftLimit(cgroup, def->mem.soft_limit); if (rc != 0) { virReportSystemError(-rc, @@ -145,7 +144,7 @@ static int lxcSetContainerResources(virDomainDefPtr def) } } - if(def->mem.swap_hard_limit) { + if (def->mem.swap_hard_limit) { rc = virCgroupSetSwapHardLimit(cgroup, def->mem.swap_hard_limit); if (rc != 0) { virReportSystemError(-rc, @@ -324,6 +323,18 @@ ignorable_epoll_accept_errno(int errnum) || errnum == EWOULDBLOCK); } +static bool +lxcPidGone(pid_t container) +{ + waitpid(container, NULL, WNOHANG); + + if (kill(container, 0) < 0 && + errno == ESRCH) + return true; + + return false; +} + /** * lxcControllerMain * @monitor: server socket fd to accept client requests @@ -341,7 +352,8 @@ ignorable_epoll_accept_errno(int errnum) static int lxcControllerMain(int monitor, int client, int appPty, - int contPty) + int contPty, + pid_t container) { int rc = -1; int epollFd; @@ -447,7 +459,13 @@ static int lxcControllerMain(int monitor, ++numActive; } } else if (epollEvent.events & EPOLLHUP) { - VIR_DEBUG("EPOLLHUP from fd %d", epollEvent.data.fd); + if (lxcPidGone(container)) + goto cleanup; + curFdOff = epollEvent.data.fd == appPty ? 0 : 1; + if (fdArray[curFdOff].active) { + fdArray[curFdOff].active = 0; + --numActive; + } continue; } else { lxcError(VIR_ERR_INTERNAL_ERROR, @@ -486,7 +504,9 @@ static int lxcControllerMain(int monitor, --numActive; fdArray[curFdOff].active = 0; } else if (-1 == rc) { - goto cleanup; + if (lxcPidGone(container)) + goto cleanup; + continue; } } @@ -584,7 +604,7 @@ lxcControllerRun(virDomainDefPtr def, int rc = -1; int control[2] = { -1, -1}; int containerPty = -1; - char *containerPtyPath; + char *containerPtyPath = NULL; pid_t container = -1; virDomainFSDefPtr root; char *devpts = NULL; @@ -706,7 +726,7 @@ lxcControllerRun(virDomainDefPtr def, if (lxcControllerClearCapabilities() < 0) goto cleanup; - rc = lxcControllerMain(monitor, client, appPty, containerPty); + rc = lxcControllerMain(monitor, client, appPty, containerPty, container); cleanup: VIR_FREE(devptmx); diff --git a/src/lxc/lxc_driver.c b/src/lxc/lxc_driver.c index 5b6f784..7aaa5cd 100644 --- a/src/lxc/lxc_driver.c +++ b/src/lxc/lxc_driver.c @@ -952,36 +952,16 @@ cleanup: * @driver: pointer to driver structure * @vm: pointer to VM to clean up * - * waitpid() on the container process. kill and wait the tty process - * This is called by both lxcDomainDestroy and lxcSigHandler when a - * container exits. - * - * Returns 0 on success or -1 in case of error + * Cleanout resources associated with the now dead VM + * */ -static int lxcVmCleanup(lxc_driver_t *driver, +static void lxcVmCleanup(lxc_driver_t *driver, virDomainObjPtr vm) { - int rc = 0; - int waitRc; - int childStatus = -1; virCgroupPtr cgroup; int i; lxcDomainObjPrivatePtr priv = vm->privateData; - while (((waitRc = waitpid(vm->pid, &childStatus, 0)) == -1) && - errno == EINTR) - ; /* empty */ - - if ((waitRc != vm->pid) && (errno != ECHILD)) { - virReportSystemError(errno, - _("waitpid failed to wait for container %d: %d"), - vm->pid, waitRc); - rc = -1; - } else if (WIFEXITED(childStatus)) { - VIR_DEBUG("container exited with rc: %d", WEXITSTATUS(childStatus)); - rc = -1; - } - /* now that we know it's stopped call the hook if present */ if (virHookPresent(VIR_HOOK_DRIVER_LXC)) { char *xml = virDomainDefFormat(vm->def, 0); @@ -1021,8 +1001,6 @@ static int lxcVmCleanup(lxc_driver_t *driver, vm->def->id = -1; vm->newDef = NULL; } - - return rc; } /** @@ -1181,11 +1159,10 @@ error: static int lxcVmTerminate(lxc_driver_t *driver, - virDomainObjPtr vm, - int signum) + virDomainObjPtr vm) { - if (signum == 0) - signum = SIGINT; + virCgroupPtr group = NULL; + int rc; if (vm->pid <= 0) { lxcError(VIR_ERR_INTERNAL_ERROR, @@ -1193,18 +1170,29 @@ static int lxcVmTerminate(lxc_driver_t *driver, return -1; } - if (kill(vm->pid, signum) < 0) { - if (errno != ESRCH) { - virReportSystemError(errno, - _("Failed to kill pid %d"), - vm->pid); - return -1; - } + if (virCgroupForDomain(driver->cgroup, vm->def->name, &group, 0) != 0) + return -1; + + rc = virCgroupKillPainfully(group); + if (rc < 0) { + virReportSystemError(-rc, "%s", + _("Failed to kill container PIDs")); + rc = -1; + goto cleanup; } + if (rc == 1) { + lxcError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Some container PIDs refused to die")); + rc = -1; + goto cleanup; + } + lxcVmCleanup(driver, vm); - vm->state = VIR_DOMAIN_SHUTDOWN; + rc = 0; - return lxcVmCleanup(driver, vm); +cleanup: + virCgroupFree(&group); + return rc; } static void lxcMonitorEvent(int watch, @@ -1228,7 +1216,7 @@ static void lxcMonitorEvent(int watch, goto cleanup; } - if (lxcVmTerminate(driver, vm, SIGINT) < 0) { + if (lxcVmTerminate(driver, vm) < 0) { virEventRemoveHandle(watch); } else { event = virDomainEventNewFromObj(vm, @@ -1473,6 +1461,31 @@ static int lxcVmStart(virConnectPtr conn, char **veths = NULL; lxcDomainObjPrivatePtr priv = vm->privateData; + if (!lxc_driver->cgroup) { + lxcError(VIR_ERR_INTERNAL_ERROR, "%s", + _("The 'cpuacct', 'devices' & 'memory' cgroups controllers must be mounted")); + return -1; + } + + if (!virCgroupMounted(lxc_driver->cgroup, + VIR_CGROUP_CONTROLLER_CPUACCT)) { + lxcError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Unable to find 'cpuacct' cgroups controller mount")); + return -1; + } + if (!virCgroupMounted(lxc_driver->cgroup, + VIR_CGROUP_CONTROLLER_DEVICES)) { + lxcError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Unable to find 'devices' cgroups controller mount")); + return -1; + } + if (!virCgroupMounted(lxc_driver->cgroup, + VIR_CGROUP_CONTROLLER_MEMORY)) { + lxcError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Unable to find 'memory' cgroups controller mount")); + return -1; + } + if ((r = virFileMakePath(driver->logDir)) != 0) { virReportSystemError(r, _("Cannot create log directory '%s'"), @@ -1543,7 +1556,7 @@ static int lxcVmStart(virConnectPtr conn, VIR_EVENT_HANDLE_ERROR | VIR_EVENT_HANDLE_HANGUP, lxcMonitorEvent, vm, NULL)) < 0) { - lxcVmTerminate(driver, vm, 0); + lxcVmTerminate(driver, vm); goto cleanup; } @@ -1711,55 +1724,6 @@ cleanup: return dom; } -/** - * lxcDomainShutdown: - * @dom: pointer to domain to shutdown - * - * Sends SIGINT to container root process to request it to shutdown - * - * Returns 0 on success or -1 in case of error - */ -static int lxcDomainShutdown(virDomainPtr dom) -{ - lxc_driver_t *driver = dom->conn->privateData; - virDomainObjPtr vm; - virDomainEventPtr event = NULL; - int ret = -1; - - lxcDriverLock(driver); - vm = virDomainFindByUUID(&driver->domains, dom->uuid); - if (!vm) { - char uuidstr[VIR_UUID_STRING_BUFLEN]; - virUUIDFormat(dom->uuid, uuidstr); - lxcError(VIR_ERR_NO_DOMAIN, - _("No domain with matching uuid '%s'"), uuidstr); - goto cleanup; - } - - if (!virDomainObjIsActive(vm)) { - lxcError(VIR_ERR_OPERATION_INVALID, - "%s", _("Domain is not running")); - goto cleanup; - } - - ret = lxcVmTerminate(driver, vm, 0); - event = virDomainEventNewFromObj(vm, - VIR_DOMAIN_EVENT_STOPPED, - VIR_DOMAIN_EVENT_STOPPED_SHUTDOWN); - if (!vm->persistent) { - virDomainRemoveInactive(&driver->domains, vm); - vm = NULL; - } - -cleanup: - if (vm) - virDomainObjUnlock(vm); - if (event) - lxcDomainEventQueue(driver, event); - lxcDriverUnlock(driver); - return ret; -} - static int lxcDomainEventRegister(virConnectPtr conn, @@ -1927,7 +1891,7 @@ static int lxcDomainDestroy(virDomainPtr dom) goto cleanup; } - ret = lxcVmTerminate(driver, vm, SIGKILL); + ret = lxcVmTerminate(driver, vm); event = virDomainEventNewFromObj(vm, VIR_DOMAIN_EVENT_STOPPED, VIR_DOMAIN_EVENT_STOPPED_DESTROYED); @@ -2056,7 +2020,7 @@ lxcReconnectVM(void *payload, const void *name ATTRIBUTE_UNUSED, void *opaque) VIR_EVENT_HANDLE_ERROR | VIR_EVENT_HANDLE_HANGUP, lxcMonitorEvent, vm, NULL)) < 0) { - lxcVmTerminate(driver, vm, 0); + lxcVmTerminate(driver, vm); goto cleanup; } } else { @@ -2123,8 +2087,11 @@ 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", - virStrerror(-rc, buf, sizeof(buf))); + VIR_DEBUG("Unable to create cgroup for LXC driver: %s", + virStrerror(-rc, buf, sizeof(buf))); + /* Don't abort startup. We will explicitly report to + * the user when they try to start a VM + */ } /* Call function to load lxc driver configuration information */ @@ -2844,7 +2811,7 @@ static virDriver lxcDriver = { lxcDomainLookupByName, /* domainLookupByName */ lxcDomainSuspend, /* domainSuspend */ lxcDomainResume, /* domainResume */ - lxcDomainShutdown, /* domainShutdown */ + NULL, /* domainShutdown */ NULL, /* domainReboot */ lxcDomainDestroy, /* domainDestroy */ lxcGetOSType, /* domainGetOSType */ -- 1.7.4

2 3

[libvirt] [PATCH] Raise default limit on number of processes for qemu user
by Jiri Denemark 10 Mar '11

10 Mar '11

The daemon/libvirtd.limits file (which is supposed to be copied to /etc/security/limits.d/libvirtd.conf) is generated based on --qemu-user option passed at configure time. The file is intentionally not installed by make install since installing it on distributions with higher or no limit on number of process could actually result in lowering the limit. Packagers may choose whether to install the file or not. It is installed by libvirt.spec for RPM based distributions. --- configure.ac | 3 ++- daemon/libvirtd.limits.in | 6 ++++++ libvirt.spec.in | 7 +++++++ src/qemu/qemu.conf | 4 +++- 4 files changed, 18 insertions(+), 2 deletions(-) create mode 100644 daemon/libvirtd.limits.in diff --git a/configure.ac b/configure.ac index a58ee4e..d8002b4 100644 --- a/configure.ac +++ b/configure.ac @@ -2237,6 +2237,7 @@ AC_ARG_WITH([qemu-group], [QEMU_GROUP=root]) AC_DEFINE_UNQUOTED([QEMU_USER], ["$QEMU_USER"], [QEMU user account]) AC_DEFINE_UNQUOTED([QEMU_GROUP], ["$QEMU_GROUP"], [QEMU group account]) +AC_SUBST([QEMU_USER]) AC_ARG_WITH([macvtap], @@ -2344,7 +2345,7 @@ AC_OUTPUT(Makefile src/Makefile include/Makefile docs/Makefile \ po/Makefile.in \ include/libvirt/Makefile include/libvirt/libvirt.h \ python/Makefile python/tests/Makefile \ - daemon/Makefile \ + daemon/Makefile daemon/libvirtd.limits \ tools/Makefile \ tests/Makefile \ examples/apparmor/Makefile \ diff --git a/daemon/libvirtd.limits.in b/daemon/libvirtd.limits.in new file mode 100644 index 0000000..7b580ae --- /dev/null +++ b/daemon/libvirtd.limits.in @@ -0,0 +1,6 @@ +# /etc/security/limits.d/libvirtd.conf +# +# Increase default limit for number of processes owned by qemu-user +# Also see @sysconfdir@/libvirt/qemu.conf where qemu-user can be overridden + +@QEMU_USER@ soft nproc 10000 diff --git a/libvirt.spec.in b/libvirt.spec.in index 45a8fe0..02be928 100644 --- a/libvirt.spec.in +++ b/libvirt.spec.in @@ -705,6 +705,12 @@ mv $RPM_BUILD_ROOT%{_datadir}/doc/libvirt-%{version}/html \ rm -rf $RPM_BUILD_ROOT%{_sysconfdir}/libvirt/qemu.conf rm -rf $RPM_BUILD_ROOT%{_sysconfdir}/logrotate.d/libvirtd.qemu %endif + +%if %{with_libvirtd} && %{with_qemu} +install -d -m 0755 $RPM_BUILD_ROOT%{_sysconfdir}/security/limits.d/ +cp daemon/libvirtd.limits \ + $RPM_BUILD_ROOT%{_sysconfdir}/security/limits.d/libvirtd.conf +%endif %if ! %{with_lxc} rm -rf $RPM_BUILD_ROOT%{_sysconfdir}/libvirt/lxc.conf rm -rf $RPM_BUILD_ROOT%{_sysconfdir}/logrotate.d/libvirtd.lxc @@ -869,6 +875,7 @@ fi %if %{with_qemu} %config(noreplace) %{_sysconfdir}/libvirt/qemu.conf %config(noreplace) %{_sysconfdir}/logrotate.d/libvirtd.qemu +%config(noreplace) %{_sysconfdir}/security/limits.d/libvirtd.conf %endif %if %{with_lxc} %config(noreplace) %{_sysconfdir}/libvirt/lxc.conf diff --git a/src/qemu/qemu.conf b/src/qemu/qemu.conf index 8c6b996..52c6ac7 100644 --- a/src/qemu/qemu.conf +++ b/src/qemu/qemu.conf @@ -139,7 +139,9 @@ # security_driver = "selinux" -# The user ID for QEMU processes run by the system instance. +# The user ID for QEMU processes run by the system instance. If you +# change this setting, /etc/security/limits.d/libvirtd.conf (if +# installed) needs to be changed to match this user ID. #user = "root" # The group ID for QEMU processes run by the system instance. -- 1.7.4.1

3 3

[libvirt] [libvirt-snmp][PATCH v2] resolve licensing conflicts
by Michal Privoznik 10 Mar '11

10 Mar '11

and add unified header to source files. --- README | 3 ++- libvirt-snmp.spec.in | 9 ++++++--- src/libvirtGuestTable.c | 24 +++++++++++++++++------- src/libvirtGuestTable.h | 22 +++++++++++++++++++--- src/libvirtGuestTable_data_access.c | 22 +++++++++++++++++++--- src/libvirtGuestTable_data_access.h | 22 +++++++++++++++++++--- src/libvirtGuestTable_data_get.c | 22 +++++++++++++++++++--- src/libvirtGuestTable_data_get.h | 22 +++++++++++++++------- src/libvirtGuestTable_data_set.c | 21 ++++++++++++++++++--- src/libvirtGuestTable_data_set.h | 22 +++++++++++++++++++--- src/libvirtGuestTable_enums.h | 22 +++++++++++++++++++--- src/libvirtGuestTable_interface.c | 22 +++++++++++++++++++--- src/libvirtGuestTable_interface.h | 22 +++++++++++++++++++--- src/libvirtGuestTable_oids.h | 22 +++++++++++++++++++--- src/libvirtMib_subagent.c | 22 ++++++++++++++++++++-- src/libvirtSnmp.c | 29 +++++++++++++++++++++-------- src/libvirtSnmp.h | 22 ++++++++++++++++++++++ 17 files changed, 292 insertions(+), 58 deletions(-) diff --git a/README b/README index acb916b..b4f4a45 100644 --- a/README +++ b/README @@ -6,4 +6,5 @@ it is now possible to gather and set domain status over SNMP from one place. This allows to create views of entire platforms end to end. -This code is distributed under GPLv3. \ No newline at end of file +This code is distributed under GPLv2, or (at your option) any later +version. diff --git a/libvirt-snmp.spec.in b/libvirt-snmp.spec.in index 5bf0032..65042af 100644 --- a/libvirt-snmp.spec.in +++ b/libvirt-snmp.spec.in @@ -1,10 +1,10 @@ Name: libvirt-snmp Version: @VERSION@ -Release: 1%{?dist}%{?extra_release} +Release: 2%{?dist}%{?extra_release} Summary: SNMP functionality for libvirt Group: Development/Libraries -License: GPLv3 +License: GPLv2+ URL: http://libvirt.org Source0: http://www.libvirt.org/sources/snmp/libvirt-snmp-%{version}.tar.gz BuildRoot: %(mktemp -ud %{_tmppath}/%{name}-%{version}-%{release}-XXXXXX) @@ -36,6 +36,9 @@ make install DESTDIR=$RPM_BUILD_ROOT %changelog +* Wed Mar 9 2011 Michal Privoznik <mprivozn(a)redhat.com> 0.0.1-2 +- resolve licensing conflicts +- add unified header to sources + * Thu Feb 2 2011 Michal Privoznik <mprivozn(a)redhat.com> 0.0.1-1 - initial revision - diff --git a/src/libvirtGuestTable.c b/src/libvirtGuestTable.c index ed50f69..d595568 100644 --- a/src/libvirtGuestTable.c +++ b/src/libvirtGuestTable.c @@ -1,15 +1,25 @@ /* - * Note: this file originally auto-generated by mib2c using - * version : 17337 $ of $ + * libvirtGuestTable.c: SNMP table of running domains * - * $Id:$ - */ -/** \page MFD helper for libvirtGuestTable + * Copyright (C) 2011 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. * - * \section intro Introduction - * Introductory text. + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> */ + /* standard Net-SNMP includes */ #include <net-snmp/net-snmp-config.h> #include <net-snmp/net-snmp-includes.h> diff --git a/src/libvirtGuestTable.h b/src/libvirtGuestTable.h index 85eb866..eb64048 100644 --- a/src/libvirtGuestTable.h +++ b/src/libvirtGuestTable.h @@ -1,9 +1,25 @@ /* - * Note: this file originally auto-generated by mib2c using - * version : 17337 $ of $ + * libvirtGuestTable.h: SNMP table of running domains * - * $Id:$ + * Copyright (C) 2011 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> */ + #ifndef LIBVIRTGUESTTABLE_H #define LIBVIRTGUESTTABLE_H diff --git a/src/libvirtGuestTable_data_access.c b/src/libvirtGuestTable_data_access.c index 6864b25..f602021 100644 --- a/src/libvirtGuestTable_data_access.c +++ b/src/libvirtGuestTable_data_access.c @@ -1,9 +1,25 @@ /* - * Note: this file originally auto-generated by mib2c using - * version : 14170 $ of $ + * libvirtGuestTable_data_access.c: SNMP table data access routines * - * $Id:$ + * Copyright (C) 2011 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> */ + /* standard Net-SNMP includes */ #include <net-snmp/net-snmp-config.h> #include <net-snmp/net-snmp-includes.h> diff --git a/src/libvirtGuestTable_data_access.h b/src/libvirtGuestTable_data_access.h index 6c54890..3491aa4 100644 --- a/src/libvirtGuestTable_data_access.h +++ b/src/libvirtGuestTable_data_access.h @@ -1,9 +1,25 @@ /* - * Note: this file originally auto-generated by mib2c using - * version : 14170 $ of $ + * libvirtGuestTable_data_access.h: SNMP table data access routines * - * $Id:$ + * Copyright (C) 2011 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> */ + #ifndef LIBVIRTGUESTTABLE_DATA_ACCESS_H #define LIBVIRTGUESTTABLE_DATA_ACCESS_H diff --git a/src/libvirtGuestTable_data_get.c b/src/libvirtGuestTable_data_get.c index 72f07bd..2430f9c 100644 --- a/src/libvirtGuestTable_data_get.c +++ b/src/libvirtGuestTable_data_get.c @@ -1,9 +1,25 @@ /* - * Note: this file originally auto-generated by mib2c using - * version : 12088 $ of $ + * libvirtGuestTable_data_get.c: SNMP table data get routines * - * $Id:$ + * Copyright (C) 2011 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> */ + /* standard Net-SNMP includes */ #include <net-snmp/net-snmp-config.h> #include <net-snmp/net-snmp-includes.h> diff --git a/src/libvirtGuestTable_data_get.h b/src/libvirtGuestTable_data_get.h index 76baf81..450d112 100644 --- a/src/libvirtGuestTable_data_get.h +++ b/src/libvirtGuestTable_data_get.h @@ -1,17 +1,25 @@ /* - * Note: this file originally auto-generated by mib2c using - * version : 12088 $ of $ + * libvirtGuestTable_data_get.h: SNMP table data get routines * - * $Id:$ + * Copyright (C) 2011 Red Hat, Inc. * - * @file libvirtGuestTable_data_get.h + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. * - * @addtogroup get + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. * - * Prototypes for get functions + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * - * @{ + * Author: Michal Privoznik <mprivozn(a)redhat.com> */ + #ifndef LIBVIRTGUESTTABLE_DATA_GET_H #define LIBVIRTGUESTTABLE_DATA_GET_H diff --git a/src/libvirtGuestTable_data_set.c b/src/libvirtGuestTable_data_set.c index f3f4ea5..c1f6625 100644 --- a/src/libvirtGuestTable_data_set.c +++ b/src/libvirtGuestTable_data_set.c @@ -1,10 +1,25 @@ /* - * Note: this file originally auto-generated by mib2c using - * version : 12077 $ of $ + * libvirtGuestTable_data_set.c: SNMP table data set routines * - * $Id:$ + * Copyright (C) 2011 Red Hat, Inc. * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> */ + /* standard Net-SNMP includes */ #include <net-snmp/net-snmp-config.h> #include <net-snmp/net-snmp-includes.h> diff --git a/src/libvirtGuestTable_data_set.h b/src/libvirtGuestTable_data_set.h index 8afb3ce..cce0fe7 100644 --- a/src/libvirtGuestTable_data_set.h +++ b/src/libvirtGuestTable_data_set.h @@ -1,9 +1,25 @@ /* - * Note: this file originally auto-generated by mib2c using - * version : 12077 $ of $ + * libvirtGuestTable_data_set.h: SNMP table data set routines * - * $Id:$ + * Copyright (C) 2011 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> */ + #ifndef LIBVIRTGUESTTABLE_DATA_SET_H #define LIBVIRTGUESTTABLE_DATA_SET_H diff --git a/src/libvirtGuestTable_enums.h b/src/libvirtGuestTable_enums.h index 12617db..ea7e6df 100644 --- a/src/libvirtGuestTable_enums.h +++ b/src/libvirtGuestTable_enums.h @@ -1,9 +1,25 @@ /* - * Note: this file originally auto-generated by mib2c using - * : generic-table-enums.m2c 12526 2005-07-15 22:41:16Z rstory $ + * libvirtGuestTable_enums.h: SNMP table enums * - * $Id:$ + * Copyright (C) 2011 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> */ + #ifndef LIBVIRTGUESTTABLE_ENUMS_H #define LIBVIRTGUESTTABLE_ENUMS_H diff --git a/src/libvirtGuestTable_interface.c b/src/libvirtGuestTable_interface.c index 9dc428d..2d78d5b 100644 --- a/src/libvirtGuestTable_interface.c +++ b/src/libvirtGuestTable_interface.c @@ -1,9 +1,25 @@ /* - * Note: this file originally auto-generated by mib2c using - * version : 16927 $ of $ + * libvirtGuestTable_interface.c: SNMP table interface * - * $Id:$ + * Copyright (C) 2011 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> */ + /* * ********************************************************************* * ********************************************************************* diff --git a/src/libvirtGuestTable_interface.h b/src/libvirtGuestTable_interface.h index 2fd4959..97a7ccc 100644 --- a/src/libvirtGuestTable_interface.h +++ b/src/libvirtGuestTable_interface.h @@ -1,9 +1,25 @@ /* - * Note: this file originally auto-generated by mib2c using - * version : 16927 $ of $ + * libvirtGuestTable_interface.h: SNMP table interface * - * $Id:$ + * Copyright (C) 2011 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> */ + /** @ingroup interface: Routines to interface to Net-SNMP * * \warning This code should not be modified, called directly, diff --git a/src/libvirtGuestTable_oids.h b/src/libvirtGuestTable_oids.h index ab6055b..a8f97fd 100644 --- a/src/libvirtGuestTable_oids.h +++ b/src/libvirtGuestTable_oids.h @@ -1,9 +1,25 @@ /* - * Note: this file originally auto-generated by mib2c using - * : generic-table-oids.m2c 17548 2009-04-23 16:35:18Z hardaker $ + * libvirtGuestTable_oids.h: SNMP table OIDs * - * $Id:$ + * Copyright (C) 2011 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> */ + #ifndef LIBVIRTGUESTTABLE_OIDS_H #define LIBVIRTGUESTTABLE_OIDS_H diff --git a/src/libvirtMib_subagent.c b/src/libvirtMib_subagent.c index 5eda993..f5749be 100644 --- a/src/libvirtMib_subagent.c +++ b/src/libvirtMib_subagent.c @@ -1,7 +1,25 @@ /* - * Note: this file originally auto-generated by mib2c using - * version : 15795 $ of $ + * libvirtMib_subagent.c: SNMP subagent + * + * Copyright (C) 2011 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> */ + /* standard Net-SNMP includes */ #include <net-snmp/net-snmp-config.h> #include <net-snmp/net-snmp-includes.h> diff --git a/src/libvirtSnmp.c b/src/libvirtSnmp.c index c15431a..dd1bd33 100644 --- a/src/libvirtSnmp.c +++ b/src/libvirtSnmp.c @@ -1,11 +1,24 @@ -/* This file contains trivial example code to connect to the running - * hypervisor and gather a few bits of information. */ - -/* compile with: - -gcc -lvirt activeguests.c - -*/ +/* + * libvirtSnmp.c: interface between libvirt and the agent + * + * Copyright (C) 2011 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> + */ #include <stdio.h> #include <stdlib.h> diff --git a/src/libvirtSnmp.h b/src/libvirtSnmp.h index 4ac6130..bac9988 100644 --- a/src/libvirtSnmp.h +++ b/src/libvirtSnmp.h @@ -1,3 +1,25 @@ +/* + * libvirtSnmp.h: interface between libvirt and agent + * + * Copyright (C) 2011 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> + */ + #ifndef __VIR_SNMP_H__ #define __VIR_SNMP_H__ -- 1.7.4

2 1

[libvirt] [libvirt-snmp][PATCH] resolve licensing conflicts
by Michal Privoznik 10 Mar '11

10 Mar '11

and add unified header to source files. Also remove LIBVIRT-MIB.txt from %doc dir. --- README | 4 +++- libvirt-snmp.spec.in | 10 +++++++--- src/libvirtGuestTable.c | 24 +++++++++++++++++------- src/libvirtGuestTable.h | 22 +++++++++++++++++++--- src/libvirtGuestTable_data_access.c | 22 +++++++++++++++++++--- src/libvirtGuestTable_data_access.h | 22 +++++++++++++++++++--- src/libvirtGuestTable_data_get.c | 22 +++++++++++++++++++--- src/libvirtGuestTable_data_get.h | 22 +++++++++++++++------- src/libvirtGuestTable_data_set.c | 21 ++++++++++++++++++--- src/libvirtGuestTable_data_set.h | 22 +++++++++++++++++++--- src/libvirtGuestTable_enums.h | 22 +++++++++++++++++++--- src/libvirtGuestTable_interface.c | 22 +++++++++++++++++++--- src/libvirtGuestTable_interface.h | 22 +++++++++++++++++++--- src/libvirtGuestTable_oids.h | 22 +++++++++++++++++++--- src/libvirtMib_subagent.c | 22 ++++++++++++++++++++-- src/libvirtSnmp.c | 29 +++++++++++++++++++++-------- src/libvirtSnmp.h | 22 ++++++++++++++++++++++ 17 files changed, 294 insertions(+), 58 deletions(-) diff --git a/README b/README index acb916b..6f9f349 100644 --- a/README +++ b/README @@ -6,4 +6,6 @@ it is now possible to gather and set domain status over SNMP from one place. This allows to create views of entire platforms end to end. -This code is distributed under GPLv3. \ No newline at end of file +This code is distributed under GPLv2, or (at your option) any later +version. + diff --git a/libvirt-snmp.spec.in b/libvirt-snmp.spec.in index 5bf0032..a59b991 100644 --- a/libvirt-snmp.spec.in +++ b/libvirt-snmp.spec.in @@ -1,10 +1,10 @@ Name: libvirt-snmp Version: @VERSION@ -Release: 1%{?dist}%{?extra_release} +Release: 2%{?dist}%{?extra_release} Summary: SNMP functionality for libvirt Group: Development/Libraries -License: GPLv3 +License: GPLv2+ URL: http://libvirt.org Source0: http://www.libvirt.org/sources/snmp/libvirt-snmp-%{version}.tar.gz BuildRoot: %(mktemp -ud %{_tmppath}/%{name}-%{version}-%{release}-XXXXXX) @@ -31,11 +31,15 @@ make install DESTDIR=$RPM_BUILD_ROOT %defattr(-,root,root,-) %{_bindir}/libvirtMib_subagent %{_datadir}/snmp/mibs/LIBVIRT-MIB.txt -%doc README NEWS ChangeLog AUTHORS src/LIBVIRT-MIB.txt +%doc README NEWS ChangeLog AUTHORS %{_mandir}/man1/libvirtMib_subagent.1* %changelog +* Wed Mar 9 2011 Michal Privoznik <mprivozn(a)redhat.com> 0.0.1-2 +- resolve licensing conflicts +- add unified header to sources + * Thu Feb 2 2011 Michal Privoznik <mprivozn(a)redhat.com> 0.0.1-1 - initial revision diff --git a/src/libvirtGuestTable.c b/src/libvirtGuestTable.c index ed50f69..d595568 100644 --- a/src/libvirtGuestTable.c +++ b/src/libvirtGuestTable.c @@ -1,15 +1,25 @@ /* - * Note: this file originally auto-generated by mib2c using - * version : 17337 $ of $ + * libvirtGuestTable.c: SNMP table of running domains * - * $Id:$ - */ -/** \page MFD helper for libvirtGuestTable + * Copyright (C) 2011 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. * - * \section intro Introduction - * Introductory text. + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> */ + /* standard Net-SNMP includes */ #include <net-snmp/net-snmp-config.h> #include <net-snmp/net-snmp-includes.h> diff --git a/src/libvirtGuestTable.h b/src/libvirtGuestTable.h index 85eb866..eb64048 100644 --- a/src/libvirtGuestTable.h +++ b/src/libvirtGuestTable.h @@ -1,9 +1,25 @@ /* - * Note: this file originally auto-generated by mib2c using - * version : 17337 $ of $ + * libvirtGuestTable.h: SNMP table of running domains * - * $Id:$ + * Copyright (C) 2011 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> */ + #ifndef LIBVIRTGUESTTABLE_H #define LIBVIRTGUESTTABLE_H diff --git a/src/libvirtGuestTable_data_access.c b/src/libvirtGuestTable_data_access.c index 6864b25..f602021 100644 --- a/src/libvirtGuestTable_data_access.c +++ b/src/libvirtGuestTable_data_access.c @@ -1,9 +1,25 @@ /* - * Note: this file originally auto-generated by mib2c using - * version : 14170 $ of $ + * libvirtGuestTable_data_access.c: SNMP table data access routines * - * $Id:$ + * Copyright (C) 2011 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> */ + /* standard Net-SNMP includes */ #include <net-snmp/net-snmp-config.h> #include <net-snmp/net-snmp-includes.h> diff --git a/src/libvirtGuestTable_data_access.h b/src/libvirtGuestTable_data_access.h index 6c54890..3491aa4 100644 --- a/src/libvirtGuestTable_data_access.h +++ b/src/libvirtGuestTable_data_access.h @@ -1,9 +1,25 @@ /* - * Note: this file originally auto-generated by mib2c using - * version : 14170 $ of $ + * libvirtGuestTable_data_access.h: SNMP table data access routines * - * $Id:$ + * Copyright (C) 2011 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> */ + #ifndef LIBVIRTGUESTTABLE_DATA_ACCESS_H #define LIBVIRTGUESTTABLE_DATA_ACCESS_H diff --git a/src/libvirtGuestTable_data_get.c b/src/libvirtGuestTable_data_get.c index 72f07bd..2430f9c 100644 --- a/src/libvirtGuestTable_data_get.c +++ b/src/libvirtGuestTable_data_get.c @@ -1,9 +1,25 @@ /* - * Note: this file originally auto-generated by mib2c using - * version : 12088 $ of $ + * libvirtGuestTable_data_get.c: SNMP table data get routines * - * $Id:$ + * Copyright (C) 2011 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> */ + /* standard Net-SNMP includes */ #include <net-snmp/net-snmp-config.h> #include <net-snmp/net-snmp-includes.h> diff --git a/src/libvirtGuestTable_data_get.h b/src/libvirtGuestTable_data_get.h index 76baf81..450d112 100644 --- a/src/libvirtGuestTable_data_get.h +++ b/src/libvirtGuestTable_data_get.h @@ -1,17 +1,25 @@ /* - * Note: this file originally auto-generated by mib2c using - * version : 12088 $ of $ + * libvirtGuestTable_data_get.h: SNMP table data get routines * - * $Id:$ + * Copyright (C) 2011 Red Hat, Inc. * - * @file libvirtGuestTable_data_get.h + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. * - * @addtogroup get + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. * - * Prototypes for get functions + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * - * @{ + * Author: Michal Privoznik <mprivozn(a)redhat.com> */ + #ifndef LIBVIRTGUESTTABLE_DATA_GET_H #define LIBVIRTGUESTTABLE_DATA_GET_H diff --git a/src/libvirtGuestTable_data_set.c b/src/libvirtGuestTable_data_set.c index f3f4ea5..c1f6625 100644 --- a/src/libvirtGuestTable_data_set.c +++ b/src/libvirtGuestTable_data_set.c @@ -1,10 +1,25 @@ /* - * Note: this file originally auto-generated by mib2c using - * version : 12077 $ of $ + * libvirtGuestTable_data_set.c: SNMP table data set routines * - * $Id:$ + * Copyright (C) 2011 Red Hat, Inc. * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> */ + /* standard Net-SNMP includes */ #include <net-snmp/net-snmp-config.h> #include <net-snmp/net-snmp-includes.h> diff --git a/src/libvirtGuestTable_data_set.h b/src/libvirtGuestTable_data_set.h index 8afb3ce..cce0fe7 100644 --- a/src/libvirtGuestTable_data_set.h +++ b/src/libvirtGuestTable_data_set.h @@ -1,9 +1,25 @@ /* - * Note: this file originally auto-generated by mib2c using - * version : 12077 $ of $ + * libvirtGuestTable_data_set.h: SNMP table data set routines * - * $Id:$ + * Copyright (C) 2011 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> */ + #ifndef LIBVIRTGUESTTABLE_DATA_SET_H #define LIBVIRTGUESTTABLE_DATA_SET_H diff --git a/src/libvirtGuestTable_enums.h b/src/libvirtGuestTable_enums.h index 12617db..ea7e6df 100644 --- a/src/libvirtGuestTable_enums.h +++ b/src/libvirtGuestTable_enums.h @@ -1,9 +1,25 @@ /* - * Note: this file originally auto-generated by mib2c using - * : generic-table-enums.m2c 12526 2005-07-15 22:41:16Z rstory $ + * libvirtGuestTable_enums.h: SNMP table enums * - * $Id:$ + * Copyright (C) 2011 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> */ + #ifndef LIBVIRTGUESTTABLE_ENUMS_H #define LIBVIRTGUESTTABLE_ENUMS_H diff --git a/src/libvirtGuestTable_interface.c b/src/libvirtGuestTable_interface.c index 9dc428d..2d78d5b 100644 --- a/src/libvirtGuestTable_interface.c +++ b/src/libvirtGuestTable_interface.c @@ -1,9 +1,25 @@ /* - * Note: this file originally auto-generated by mib2c using - * version : 16927 $ of $ + * libvirtGuestTable_interface.c: SNMP table interface * - * $Id:$ + * Copyright (C) 2011 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> */ + /* * ********************************************************************* * ********************************************************************* diff --git a/src/libvirtGuestTable_interface.h b/src/libvirtGuestTable_interface.h index 2fd4959..97a7ccc 100644 --- a/src/libvirtGuestTable_interface.h +++ b/src/libvirtGuestTable_interface.h @@ -1,9 +1,25 @@ /* - * Note: this file originally auto-generated by mib2c using - * version : 16927 $ of $ + * libvirtGuestTable_interface.h: SNMP table interface * - * $Id:$ + * Copyright (C) 2011 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> */ + /** @ingroup interface: Routines to interface to Net-SNMP * * \warning This code should not be modified, called directly, diff --git a/src/libvirtGuestTable_oids.h b/src/libvirtGuestTable_oids.h index ab6055b..a8f97fd 100644 --- a/src/libvirtGuestTable_oids.h +++ b/src/libvirtGuestTable_oids.h @@ -1,9 +1,25 @@ /* - * Note: this file originally auto-generated by mib2c using - * : generic-table-oids.m2c 17548 2009-04-23 16:35:18Z hardaker $ + * libvirtGuestTable_oids.h: SNMP table OIDs * - * $Id:$ + * Copyright (C) 2011 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> */ + #ifndef LIBVIRTGUESTTABLE_OIDS_H #define LIBVIRTGUESTTABLE_OIDS_H diff --git a/src/libvirtMib_subagent.c b/src/libvirtMib_subagent.c index 5eda993..4adfbb8 100644 --- a/src/libvirtMib_subagent.c +++ b/src/libvirtMib_subagent.c @@ -1,7 +1,25 @@ /* - * Note: this file originally auto-generated by mib2c using - * version : 15795 $ of $ + * libvirtMib_subagent.c: SNMP subagent + * + * Copyright (C) 2011 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> */ + /* standard Net-SNMP includes */ #include <net-snmp/net-snmp-config.h> #include <net-snmp/net-snmp-includes.h> diff --git a/src/libvirtSnmp.c b/src/libvirtSnmp.c index c15431a..0401d53 100644 --- a/src/libvirtSnmp.c +++ b/src/libvirtSnmp.c @@ -1,11 +1,24 @@ -/* This file contains trivial example code to connect to the running - * hypervisor and gather a few bits of information. */ - -/* compile with: - -gcc -lvirt activeguests.c - -*/ +/* + * libvirtSnmp.c: interface between libvirt and the agent + * + * Copyright (C) 2011 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> + */ #include <stdio.h> #include <stdlib.h> diff --git a/src/libvirtSnmp.h b/src/libvirtSnmp.h index 4ac6130..52355c7 100644 --- a/src/libvirtSnmp.h +++ b/src/libvirtSnmp.h @@ -1,3 +1,25 @@ +/* + * libvirtSnmp.h: interface between libvirt and agent + * + * Copyright (C) 2011 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Author: Michal Privoznik <mprivozn(a)redhat.com> + */ + #ifndef __VIR_SNMP_H__ #define __VIR_SNMP_H__ -- 1.7.4

3 2

[libvirt] [PATCH V4] Add libxenlight driver
by Jim Fehlig 10 Mar '11

10 Mar '11

Add a new xen driver based on libxenlight [1], which is the primary toolstack starting with Xen 4.1.0. The driver is stateful, runs privileged only, and is accessed with libxl:/// URI. V4: - Handle restart of libvirtd, reconnecting to previously started domains - Rebased to current master - Tested against Xen 4.1 RC7-pre (c/s 22961:c5d121fd35c0) V3: - Reserve vnc port within driver when autoport=yes V2: - Update to Xen 4.1 RC6-pre (c/s 22940:5a4710640f81) - Rebased to current master - Plug memory leaks found by Stefano Stabellini and valgrind - Handle SHUTDOWN_crash domain death event [1] http://lists.xensource.com/archives/html/xen-devel/2009-11/msg00436.html --- cfg.mk | 1 + configure.ac | 48 ++ daemon/Makefile.am | 4 + daemon/libvirtd.c | 6 + docs/drivers.html.in | 3 +- docs/drvxen.html.in | 6 +- docs/drvxenlight.html.in | 53 ++ docs/sitemap.html.in | 6 +- include/libvirt/virterror.h | 1 + po/POTFILES.in | 2 + src/Makefile.am | 32 + src/driver.h | 3 +- src/libvirt.c | 4 + src/libxl/libxl_conf.c | 896 +++++++++++++++++++++++++++ src/libxl/libxl_conf.h | 91 +++ src/libxl/libxl_driver.c | 1411 +++++++++++++++++++++++++++++++++++++++++++ src/libxl/libxl_driver.h | 27 + src/util/virterror.c | 3 + 18 files changed, 2593 insertions(+), 4 deletions(-) diff --git a/cfg.mk b/cfg.mk index 5cb2ead..ef71cd5 100644 --- a/cfg.mk +++ b/cfg.mk @@ -402,6 +402,7 @@ msg_gen_function += virXenStoreError msg_gen_function += virXendError msg_gen_function += vmwareError msg_gen_function += xenapiSessionErrorHandler +msg_gen_function += libxlError msg_gen_function += xenUnifiedError msg_gen_function += xenXMError msg_gen_function += VIR_ERROR diff --git a/configure.ac b/configure.ac index a58ee4e..0ef90e1 100644 --- a/configure.ac +++ b/configure.ac @@ -263,6 +263,8 @@ AC_ARG_WITH([phyp], AC_HELP_STRING([--with-phyp], [add PHYP support @<:@default=check@:>@]),[],[with_phyp=check]) AC_ARG_WITH([xenapi], AC_HELP_STRING([--with-xenapi], [add XenAPI support @<:@default=check@:>@]),[],[with_xenapi=check]) +AC_ARG_WITH([libxl], + AC_HELP_STRING([--with-libxl], [add libxenlight support @<:@default=check@:>@]),[],[with_libxl=check]) AC_ARG_WITH([vbox], AC_HELP_STRING([--with-vbox=@<:@PFX@:>@], [VirtualBox XPCOMC location @<:@default=yes@:>@]),[], @@ -497,6 +499,46 @@ fi AC_SUBST([LIBXENSERVER_CFLAGS]) AC_SUBST([LIBXENSERVER_LIBS]) +old_LIBS="$LIBS" +old_CFLAGS="$CFLAGS" +LIBXL_LIBS="" +LIBXL_CFLAGS="" +dnl search for libxl, aka libxenlight +fail=0 +if test "$with_libxl" != "no" ; then + if test "$with_libxl" != "yes" && test "$with_libxl" != "check" ; then + LIBXL_CFLAGS="-I$with_libxl/include" + LIBXL_LIBS="-L$with_libxl" + fi + CFLAGS="$CFLAGS $LIBXL_CFLAGS" + LIBS="$LIBS $LIBXL_LIBS" + AC_CHECK_LIB([xenlight], [libxl_ctx_init], [ + with_libxl=yes + LIBXL_LIBS="$LIBXL_LIBS -lxenlight -lxenstore -lxenctrl -lxenguest -luuid -lutil -lblktapctl" + ],[ + if test "$with_libxl" = "yes"; then + fail=1 + fi + with_libxl=no + ],[ + -lxenstore -lxenctrl -lxenguest -luuid -lutil -lblktapctl + ]) +fi + +LIBS="$old_LIBS" +CFLAGS="$old_CFLAGS" + +if test $fail = 1; then + AC_MSG_ERROR([You must install the libxl Library to compile libxenlight driver with -lxl]) +fi + +if test "$with_libxl" = "yes"; then + AC_DEFINE_UNQUOTED([WITH_LIBXL], 1, [whether libxenlight driver is enabled]) +fi +AM_CONDITIONAL([WITH_LIBXL], [test "$with_libxl" = "yes"]) + +AC_SUBST([LIBXL_CFLAGS]) +AC_SUBST([LIBXL_LIBS]) old_LIBS="$LIBS" old_CFLAGS="$CFLAGS" @@ -2370,6 +2412,7 @@ AC_MSG_NOTICE([ OpenVZ: $with_openvz]) AC_MSG_NOTICE([ VMware: $with_vmware]) AC_MSG_NOTICE([ VBox: $with_vbox]) AC_MSG_NOTICE([ XenAPI: $with_xenapi]) +AC_MSG_NOTICE([libxenlight: $with_libxl]) AC_MSG_NOTICE([ LXC: $with_lxc]) AC_MSG_NOTICE([ PHYP: $with_phyp]) AC_MSG_NOTICE([ ONE: $with_one]) @@ -2479,6 +2522,11 @@ AC_MSG_NOTICE([ xenapi: $LIBXENSERVER_CFLAGS $LIBXENSERVER_LIBS]) else AC_MSG_NOTICE([ xenapi: no]) fi +if test "$with_libxl" = "yes" ; then +AC_MSG_NOTICE([ libxenlight: $LIBXL_CFLAGS $LIBXL_LIBS]) +else +AC_MSG_NOTICE([ libxenlight: no]) +fi if test "$with_hal" = "yes" ; then AC_MSG_NOTICE([ hal: $HAL_CFLAGS $HAL_LIBS]) else diff --git a/daemon/Makefile.am b/daemon/Makefile.am index 912440c..195b8c8 100644 --- a/daemon/Makefile.am +++ b/daemon/Makefile.am @@ -112,6 +112,10 @@ if WITH_LXC libvirtd_LDADD += ../src/libvirt_driver_lxc.la endif +if WITH_LIBXL + libvirtd_LDADD += ../src/libvirt_driver_libxl.la +endif + if WITH_UML libvirtd_LDADD += ../src/libvirt_driver_uml.la endif diff --git a/daemon/libvirtd.c b/daemon/libvirtd.c index 452566c..57795f8 100644 --- a/daemon/libvirtd.c +++ b/daemon/libvirtd.c @@ -81,6 +81,9 @@ # ifdef WITH_LXC # include "lxc/lxc_driver.h" # endif +# ifdef WITH_LIBXL +# include "libxl/libxl_driver.h" +# endif # ifdef WITH_UML # include "uml/uml_driver.h" # endif @@ -948,6 +951,9 @@ static struct qemud_server *qemudInitialize(void) { # ifdef WITH_LXC lxcRegister(); # endif +# ifdef WITH_LIBXL + libxlRegister(); +# endif # ifdef WITH_UML umlRegister(); # endif diff --git a/docs/drivers.html.in b/docs/drivers.html.in index ecad03a..368664e 100644 --- a/docs/drivers.html.in +++ b/docs/drivers.html.in @@ -28,7 +28,8 @@ <li><strong><a href="drvvbox.html">VirtualBox</a></strong></li> <li><strong><a href="drvesx.html">VMware ESX</a></strong></li> <li><strong><a href="drvvmware.html">VMware Workstation/Player</a></strong></li> - <li><strong><a href="drvxen.html">Xen</a></strong></li> + <li><strong><a href="drvxen.html">Xen 3.0.1 - 4.0.x</a></strong></li> + <li><strong><a href="drvxenlight.html">Xen 4.1.0 onwards</a></strong></li> </ul> <h2><a name="stroage">Storage drivers</a></h2> diff --git a/docs/drvxen.html.in b/docs/drvxen.html.in index 4e35afa..4b88a7d 100644 --- a/docs/drvxen.html.in +++ b/docs/drvxen.html.in @@ -6,7 +6,11 @@ <p> The libvirt Xen driver provides the ability to manage virtual machines - on any Xen release from 3.0.1 onwards. + on any Xen release from 3.0.1 to 4.0.x. Starting with Xen 4.1.0, + the traditional xm/xend toolstack is replaced with a new toolstack + based on libxenlight. Consult the + <a href="drvxenlight.html">libxenlight driver</a> if your Xen host is + configured to use the new toolstack. </p> <h2><a name="prereq">Deployment pre-requisites</a></h2> diff --git a/docs/drvxenlight.html.in b/docs/drvxenlight.html.in new file mode 100644 index 0000000..fe60786 --- /dev/null +++ b/docs/drvxenlight.html.in @@ -0,0 +1,53 @@ +<html> + <body> + <h1>libxenlight hypervisor driver</h1> + + <ul id="toc"></ul> + + <p> + The libvirt libxenlight driver provides the ability to manage virtual + machines on any Xen release from 4.1.0 onwards. + </p> + + <h2><a name="prereq">Deployment pre-requisites</a></h2> + + <p> + This driver uses Xen's libxenlight toolstack, which is the default + toolstack configuration starting with Xen 4.1.0. The traditional + xm/xend toolstack is still provided, but it is no longer maintained + and may be removed in a future Xen release. + </p> + + <p> + The libxenlight toolstack uses xenstored and blktap2. Ensure + xenstored is running, or use the xencommons init script provided. + Ensure your kernel supports the blktap2 module and it is loaded. + </p> + + <h2><a name="uri">Connections to libxenlight driver</a></h2> + + <p> + The libvirt libxenlight driver is a stateful, privileged driver, + with a driver name of 'libxl'. Some example conection URIs for + the libxenlight driver are: + </p> + +<pre> +libxl:/// (local access, direct) +libxl://example.com/ (remote access, TLS/x509) +libxl+tcp://example.com/ (remote access, SASl/Kerberos) +libxl+ssh://root@example.com/ (remote access, SSH tunnelled) +</pre> + + <h2><a name="xmlconfig">Example domain XML config</a></h2> + + <p> + The libxenlight toolstack attempts to be compatible with the + legacy xm/xend toolstack, supporting the traditional python + configuration files (xen-xm). Fortunately, the libvirt XML + syntax is unchanged with the libxenlight driver. Consult + the <a href="drvxen.html#xmlconfig">Xen driver examples</a>. + </p> + + </body> +</html> diff --git a/docs/sitemap.html.in b/docs/sitemap.html.in index ac0af71..538f227 100644 --- a/docs/sitemap.html.in +++ b/docs/sitemap.html.in @@ -156,7 +156,11 @@ <ul> <li> <a href="drvxen.html">Xen</a> - <span>Driver the Xen hypervisor</span> + <span>Driver the Xen hypervisor, versions 3.0.1 - 4.0.x</span> + </li> + <li> + <a href="drvxenlight.html">libxenlight</a> + <span>Driver the Xen hypervisor, version 4.1.0 onwards</span> </li> <li> <a href="drvqemu.html">QEMU / KVM</a> diff --git a/include/libvirt/virterror.h b/include/libvirt/virterror.h index 6b8c789..1d8275b 100644 --- a/include/libvirt/virterror.h +++ b/include/libvirt/virterror.h @@ -80,6 +80,7 @@ typedef enum { VIR_FROM_STREAMS = 38, /* Error from I/O streams */ VIR_FROM_VMWARE = 39, /* Error from VMware driver */ VIR_FROM_EVENT = 40, /* Error from event loop impl */ + VIR_FROM_LIBXL = 41, /* Error from libxenlight driver */ } virErrorDomain; diff --git a/po/POTFILES.in b/po/POTFILES.in index 1ed2765..4bd2b13 100644 --- a/po/POTFILES.in +++ b/po/POTFILES.in @@ -34,6 +34,8 @@ src/lxc/lxc_conf.c src/lxc/lxc_controller.c src/lxc/lxc_driver.c src/lxc/veth.c +src/libxl/libxl_driver.c +src/libxl/libxl_conf.c src/network/bridge_driver.c src/node_device/node_device_driver.c src/node_device/node_device_hal.c diff --git a/src/Makefile.am b/src/Makefile.am index 25f0e48..f9c6066 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -298,6 +298,10 @@ XENAPI_DRIVER_SOURCES = \ xenapi/xenapi_driver_private.h \ xenapi/xenapi_utils.c xenapi/xenapi_utils.h +LIBXL_DRIVER_SOURCES = \ + libxl/libxl_conf.c libxl/libxl_conf.h \ + libxl/libxl_driver.c libxl/libxl_driver.h + UML_DRIVER_SOURCES = \ uml/uml_conf.c uml/uml_conf.h \ uml/uml_driver.c uml/uml_driver.h @@ -692,6 +696,25 @@ endif libvirt_driver_xenapi_la_SOURCES = $(XENAPI_DRIVER_SOURCES) endif +if WITH_LIBXL +if WITH_DRIVER_MODULES +mod_LTLIBRARIES += libvirt_driver_libxl.la +else +noinst_LTLIBRARIES += libvirt_driver_libxl.la +# Stateful, so linked to daemon instead +#libvirt_la_BUILT_LIBADD += libvirt_driver_libxl.la +endif +libvirt_driver_libxl_la_CFLAGS = $(LIBXL_CFLAGS) \ + -I@top_srcdir@/src/conf $(AM_CFLAGS) +libvirt_driver_libxl_la_LDFLAGS = $(AM_LDFLAGS) +libvirt_driver_libxl_la_LIBADD = $(LIBXL_LIBS) +if WITH_DRIVER_MODULES +libvirt_driver_libxl_la_LIBADD += ../gnulib/lib/libgnu.la +libvirt_driver_libxl_la_LDFLAGS += -module -avoid-version +endif +libvirt_driver_libxl_la_SOURCES = $(LIBXL_DRIVER_SOURCES) +endif + if WITH_QEMU if WITH_DRIVER_MODULES mod_LTLIBRARIES += libvirt_driver_qemu.la @@ -991,6 +1014,7 @@ EXTRA_DIST += \ $(PHYP_DRIVER_SOURCES) \ $(VBOX_DRIVER_SOURCES) \ $(XENAPI_DRIVER_SOURCES) \ + $(LIBXL_DRIVER_SOURCES) \ $(ESX_DRIVER_SOURCES) \ $(ESX_DRIVER_EXTRA_DIST) \ $(NETWORK_DRIVER_SOURCES) \ @@ -1245,6 +1269,10 @@ if WITH_LXC $(MKDIR_P) "$(DESTDIR)$(localstatedir)/lib/libvirt/lxc" $(MKDIR_P) "$(DESTDIR)$(localstatedir)/run/libvirt/lxc" endif +if WITH_LIBXL + $(MKDIR_P) "$(DESTDIR)$(localstatedir)/lib/libvirt/libxl" + $(MKDIR_P) "$(DESTDIR)$(localstatedir)/run/libvirt/libxl" +endif if WITH_UML $(MKDIR_P) "$(DESTDIR)$(localstatedir)/lib/libvirt/uml" $(MKDIR_P) "$(DESTDIR)$(localstatedir)/run/libvirt/uml" @@ -1282,6 +1310,10 @@ if WITH_LXC rmdir "$(DESTDIR)$(localstatedir)/lib/libvirt/lxc" ||: rmdir "$(DESTDIR)$(localstatedir)/run/libvirt/lxc" ||: endif +if WITH_LIBXL + rmdir "$(DESTDIR)$(localstatedir)/lib/libvirt/libxl" ||: + rmdir "$(DESTDIR)$(localstatedir)/run/libvirt/libxl" ||: +endif if WITH_UML rmdir "$(DESTDIR)$(localstatedir)/lib/libvirt/uml" ||: rmdir "$(DESTDIR)$(localstatedir)/run/libvirt/uml" ||: diff --git a/src/driver.h b/src/driver.h index c65a4b9..c8c9624 100644 --- a/src/driver.h +++ b/src/driver.h @@ -27,7 +27,8 @@ typedef enum { VIR_DRV_ESX = 10, VIR_DRV_PHYP = 11, VIR_DRV_XENAPI = 12, - VIR_DRV_VMWARE = 13 + VIR_DRV_VMWARE = 13, + VIR_DRV_LIBXL = 14, } virDrvNo; diff --git a/src/libvirt.c b/src/libvirt.c index e4b451e..5e2876b 100644 --- a/src/libvirt.c +++ b/src/libvirt.c @@ -912,6 +912,10 @@ virGetVersion(unsigned long *libVer, const char *type, if (STRCASEEQ(type, "LXC")) *typeVer = LIBVIR_VERSION_NUMBER; # endif +# if WITH_LIBXL + if (STRCASEEQ(type, "libxl")) + *typeVer = LIBVIR_VERSION_NUMBER; +# endif # if WITH_PHYP if (STRCASEEQ(type, "phyp")) *typeVer = LIBVIR_VERSION_NUMBER; diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c new file mode 100644 index 0000000..a48eea3 --- /dev/null +++ b/src/libxl/libxl_conf.c @@ -0,0 +1,896 @@ +/*---------------------------------------------------------------------------*/ +/* Copyright (c) 2011 SUSE LINUX Products GmbH, Nuernberg, Germany. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +/*---------------------------------------------------------------------------*/ + +#include <config.h> + +#include <regex.h> +#include <libxl.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <sys/utsname.h> + +#include "internal.h" +#include "logging.h" +#include "virterror_internal.h" +#include "datatypes.h" +#include "files.h" +#include "memory.h" +#include "uuid.h" +#include "capabilities.h" +#include "libxl_driver.h" +#include "libxl_conf.h" + + +#define VIR_FROM_THIS VIR_FROM_LIBXL + + +struct guest_arch { + const char *model; + int bits; + int hvm; + int pae; + int nonpae; + int ia64_be; +}; + +static const char *xen_cap_re = "(xen|hvm)-[[:digit:]]+\\.[[:digit:]]+-(x86_32|x86_64|ia64|powerpc64)(p|be)?"; +static regex_t xen_cap_rec; + + +static int +libxlNextFreeVncPort(libxlDriverPrivatePtr driver, int startPort) +{ + int i; + + for (i = startPort ; i < LIBXL_VNC_PORT_MAX; i++) { + int fd; + int reuse = 1; + struct sockaddr_in addr; + bool used = false; + + if (virBitmapGetBit(driver->reservedVNCPorts, + i - LIBXL_VNC_PORT_MIN, &used) < 0) + VIR_DEBUG("virBitmapGetBit failed on bit %d", i - LIBXL_VNC_PORT_MIN); + + if (used) + continue; + + addr.sin_family = AF_INET; + addr.sin_port = htons(i); + addr.sin_addr.s_addr = htonl(INADDR_ANY); + fd = socket(PF_INET, SOCK_STREAM, 0); + if (fd < 0) + return -1; + + if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*)&reuse, sizeof(reuse)) < 0) { + VIR_FORCE_CLOSE(fd); + break; + } + + if (bind(fd, (struct sockaddr*)&addr, sizeof(addr)) == 0) { + /* Not in use, lets grab it */ + VIR_FORCE_CLOSE(fd); + /* Add port to bitmap of reserved ports */ + if (virBitmapSetBit(driver->reservedVNCPorts, + i - LIBXL_VNC_PORT_MIN) < 0) { + VIR_DEBUG("virBitmapSetBit failed on bit %d", + i - LIBXL_VNC_PORT_MIN); + } + return i; + } + VIR_FORCE_CLOSE(fd); + + if (errno == EADDRINUSE) { + /* In use, try next */ + continue; + } + /* Some other bad failure, get out.. */ + break; + } + return -1; +} + +static virCapsPtr +libxlBuildCapabilities(const char *hostmachine, + int host_pae, + struct guest_arch *guest_archs, + int nr_guest_archs) +{ + virCapsPtr caps; + int i; + + if ((caps = virCapabilitiesNew(hostmachine, 1, 1)) == NULL) + goto no_memory; + + virCapabilitiesSetMacPrefix(caps, (unsigned char[]){ 0x00, 0x16, 0x3e }); + + if (host_pae && + virCapabilitiesAddHostFeature(caps, "pae") < 0) + goto no_memory; + + for (i = 0; i < nr_guest_archs; ++i) { + virCapsGuestPtr guest; + char const *const xen_machines[] = {guest_archs[i].hvm ? "xenfv" : "xenpv"}; + virCapsGuestMachinePtr *machines; + + if ((machines = virCapabilitiesAllocMachines(xen_machines, 1)) == NULL) + goto no_memory; + + if ((guest = virCapabilitiesAddGuest(caps, + guest_archs[i].hvm ? "hvm" : "xen", + guest_archs[i].model, + guest_archs[i].bits, + (STREQ(hostmachine, "x86_64") ? + "/usr/lib64/xen/bin/qemu-dm" : + "/usr/lib/xen/bin/qemu-dm"), + (guest_archs[i].hvm ? + "/usr/lib/xen/boot/hvmloader" : + NULL), + 1, + machines)) == NULL) { + virCapabilitiesFreeMachines(machines, 1); + goto no_memory; + } + machines = NULL; + + if (virCapabilitiesAddGuestDomain(guest, + "xen", + NULL, + NULL, + 0, + NULL) == NULL) + goto no_memory; + + if (guest_archs[i].pae && + virCapabilitiesAddGuestFeature(guest, + "pae", + 1, + 0) == NULL) + goto no_memory; + + if (guest_archs[i].nonpae && + virCapabilitiesAddGuestFeature(guest, + "nonpae", + 1, + 0) == NULL) + goto no_memory; + + if (guest_archs[i].ia64_be && + virCapabilitiesAddGuestFeature(guest, + "ia64_be", + 1, + 0) == NULL) + goto no_memory; + + if (guest_archs[i].hvm) { + if (virCapabilitiesAddGuestFeature(guest, + "acpi", + 1, + 1) == NULL) + goto no_memory; + + if (virCapabilitiesAddGuestFeature(guest, "apic", + 1, + 0) == NULL) + goto no_memory; + + if (virCapabilitiesAddGuestFeature(guest, + "hap", + 0, + 1) == NULL) + goto no_memory; + } + } + + caps->defaultConsoleTargetType = VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_XEN; + + return caps; + + no_memory: + virCapabilitiesFree(caps); + return NULL; +} + +static virCapsPtr +libxlMakeCapabilitiesInternal(const char *hostmachine, + libxl_physinfo *phy_info, + char *capabilities) +{ + char *str, *token; + regmatch_t subs[4]; + char *saveptr = NULL; + int i; + + int host_pae = 0; + struct guest_arch guest_archs[32]; + int nr_guest_archs = 0; + virCapsPtr caps = NULL; + + memset(guest_archs, 0, sizeof(guest_archs)); + + // TODO: extract pae from phy_info->phys_cap + // for now, better default is 1 + (void)phy_info; + host_pae = 1; + + /* Format of capabilities string is documented in the code in + * xen-unstable.hg/xen/arch/.../setup.c. + * + * It is a space-separated list of supported guest architectures. + * + * For x86: + * TYP-VER-ARCH[p] + * ^ ^ ^ ^ + * | | | +-- PAE supported + * | | +------- x86_32 or x86_64 + * | +----------- the version of Xen, eg. "3.0" + * +--------------- "xen" or "hvm" for para or full virt respectively + * + * For IA64: + * TYP-VER-ARCH[be] + * ^ ^ ^ ^ + * | | | +-- Big-endian supported + * | | +------- always "ia64" + * | +----------- the version of Xen, eg. "3.0" + * +--------------- "xen" or "hvm" for para or full virt respectively + */ + + /* Split capabilities string into tokens. strtok_r is OK here because + * we "own" the buffer. Parse out the features from each token. + */ + for (str = capabilities, nr_guest_archs = 0; + nr_guest_archs < sizeof guest_archs / sizeof guest_archs[0] + && (token = strtok_r (str, " ", &saveptr)) != NULL; + str = NULL) { + if (regexec(&xen_cap_rec, token, sizeof subs / sizeof subs[0], + subs, 0) == 0) { + int hvm = STRPREFIX(&token[subs[1].rm_so], "hvm"); + const char *model; + int bits, pae = 0, nonpae = 0, ia64_be = 0; + + if (STRPREFIX(&token[subs[2].rm_so], "x86_32")) { + model = "i686"; + bits = 32; + if (subs[3].rm_so != -1 && + STRPREFIX(&token[subs[3].rm_so], "p")) + pae = 1; + else + nonpae = 1; + } + else if (STRPREFIX(&token[subs[2].rm_so], "x86_64")) { + model = "x86_64"; + bits = 64; + } + else if (STRPREFIX(&token[subs[2].rm_so], "ia64")) { + model = "ia64"; + bits = 64; + if (subs[3].rm_so != -1 && + STRPREFIX(&token[subs[3].rm_so], "be")) + ia64_be = 1; + } + else if (STRPREFIX(&token[subs[2].rm_so], "powerpc64")) { + model = "ppc64"; + bits = 64; + } else { + continue; + } + + /* Search for existing matching (model,hvm) tuple */ + for (i = 0 ; i < nr_guest_archs ; i++) { + if (STREQ(guest_archs[i].model, model) && + guest_archs[i].hvm == hvm) { + break; + } + } + + /* Too many arch flavours - highly unlikely ! */ + if (i >= ARRAY_CARDINALITY(guest_archs)) + continue; + /* Didn't find a match, so create a new one */ + if (i == nr_guest_archs) + nr_guest_archs++; + + guest_archs[i].model = model; + guest_archs[i].bits = bits; + guest_archs[i].hvm = hvm; + + /* Careful not to overwrite a previous positive + setting with a negative one here - some archs + can do both pae & non-pae, but Xen reports + separately capabilities so we're merging archs */ + if (pae) + guest_archs[i].pae = pae; + if (nonpae) + guest_archs[i].nonpae = nonpae; + if (ia64_be) + guest_archs[i].ia64_be = ia64_be; + } + } + + if ((caps = libxlBuildCapabilities(hostmachine, + host_pae, + guest_archs, + nr_guest_archs)) == NULL) + goto no_memory; + + return caps; + + no_memory: + virReportOOMError(); + virCapabilitiesFree(caps); + return NULL; +} + +static int +libxlMakeDomCreateInfo(virDomainDefPtr def, libxl_domain_create_info *c_info) +{ + char uuidstr[VIR_UUID_STRING_BUFLEN]; + + libxl_init_create_info(c_info); + + c_info->hvm = STREQ(def->os.type, "hvm"); + if ((c_info->name = strdup(def->name)) == NULL) { + virReportOOMError(); + goto error; + } + + virUUIDFormat(def->uuid, uuidstr); + if (libxl_uuid_from_string(&c_info->uuid, uuidstr) ) { + libxlError(VIR_ERR_INTERNAL_ERROR, + _("libxenlight failed to parse UUID '%s'"), uuidstr); + goto error; + } + + return 0; + +error: + libxl_domain_create_info_destroy(c_info); + return -1; +} + +static int +libxlMakeDomBuildInfo(virDomainDefPtr def, libxl_domain_config *d_config) +{ + libxl_domain_build_info *b_info = &d_config->b_info; + int hvm = STREQ(def->os.type, "hvm"); + + libxl_init_build_info(b_info, &d_config->c_info); + + b_info->hvm = hvm; + b_info->max_vcpus = def->maxvcpus; + b_info->cur_vcpus = def->vcpus; + if (def->clock.ntimers > 0 && + def->clock.timers[0]->name == VIR_DOMAIN_TIMER_NAME_TSC) { + switch (def->clock.timers[0]->mode) { + case VIR_DOMAIN_TIMER_MODE_NATIVE: + b_info->tsc_mode = 2; + break; + case VIR_DOMAIN_TIMER_MODE_PARAVIRT: + b_info->tsc_mode = 3; + break; + default: + b_info->tsc_mode = 1; + } + } + b_info->max_memkb = def->mem.max_balloon; + b_info->target_memkb = def->mem.cur_balloon; + if (hvm) { + b_info->u.hvm.pae = def->features & (1 << VIR_DOMAIN_FEATURE_PAE); + b_info->u.hvm.apic = def->features & (1 << VIR_DOMAIN_FEATURE_APIC); + b_info->u.hvm.acpi = def->features & (1 << VIR_DOMAIN_FEATURE_ACPI); + /* + * The following comment and calculation were taken directly from + * libxenlight's internal function libxl_get_required_shadow_memory(): + * + * 256 pages (1MB) per vcpu, plus 1 page per MiB of RAM for the P2M map, + * plus 1 page per MiB of RAM to shadow the resident processes. + */ + b_info->shadow_memkb = 4 * (256 * b_info->cur_vcpus + + 2 * (b_info->max_memkb / 1024)); + } else { + if (def->os.bootloader) { + if ((b_info->u.pv.bootloader = strdup(def->os.bootloader)) == NULL) { + virReportOOMError(); + goto error; + } + } + if (def->os.bootloaderArgs) { + if ((b_info->u.pv.bootloader_args = strdup(def->os.bootloaderArgs)) == NULL) { + virReportOOMError(); + goto error; + } + } + if (def->os.cmdline) { + if ((b_info->u.pv.cmdline = strdup(def->os.cmdline)) == NULL) { + virReportOOMError(); + goto error; + } + } + if (def->os.kernel) { + /* libxl_init_build_info() sets kernel.path = strdup("hvmloader") */ + free(b_info->kernel.path); + if ((b_info->kernel.path = strdup(def->os.kernel)) == NULL) { + virReportOOMError(); + goto error; + } + } + if (def->os.initrd) { + if ((b_info->u.pv.ramdisk.path = strdup(def->os.initrd)) == NULL) { + virReportOOMError(); + goto error; + } + } + } + + return 0; + +error: + libxl_domain_build_info_destroy(b_info); + return -1; +} + +static int +libxlMakeDiskList(virDomainDefPtr def, libxl_domain_config *d_config) +{ + virDomainDiskDefPtr *l_disks = def->disks; + int ndisks = def->ndisks; + libxl_device_disk *x_disks; + int i; + + if (VIR_ALLOC_N(x_disks, ndisks) < 0) { + virReportOOMError(); + return -1; + } + + for (i = 0; i < ndisks; i++) { + if (l_disks[i]->src && + (x_disks[i].pdev_path = strdup(l_disks[i]->src)) == NULL) { + virReportOOMError(); + goto error; + } + + if (l_disks[i]->dst && + (x_disks[i].vdev = strdup(l_disks[i]->dst)) == NULL) { + virReportOOMError(); + goto error; + } + + if (l_disks[i]->driverName) { + if (STREQ(l_disks[i]->driverName, "tap") || + STREQ(l_disks[i]->driverName, "tap2")) { + if (l_disks[i]->driverType) { + if (STREQ(l_disks[i]->driverType, "qcow")) { + x_disks[i].format = DISK_FORMAT_QCOW; + x_disks[i].backend = DISK_BACKEND_QDISK; + } else if (STREQ(l_disks[i]->driverType, "qcow2")) { + x_disks[i].format = DISK_FORMAT_QCOW2; + x_disks[i].backend = DISK_BACKEND_QDISK; + } else if (STREQ(l_disks[i]->driverType, "vhd")) { + x_disks[i].format = DISK_FORMAT_VHD; + x_disks[i].backend = DISK_BACKEND_TAP; + } else if (STREQ(l_disks[i]->driverType, "aio") || + STREQ(l_disks[i]->driverType, "raw")) { + x_disks[i].format = DISK_FORMAT_RAW; + x_disks[i].backend = DISK_BACKEND_TAP; + } + } else { + /* No subtype specified, default to raw/tap */ + x_disks[i].format = DISK_FORMAT_RAW; + x_disks[i].backend = DISK_BACKEND_TAP; + } + } else if (STREQ(l_disks[i]->driverName, "file")) { + x_disks[i].format = DISK_FORMAT_RAW; + x_disks[i].backend = DISK_BACKEND_TAP; + } else if (STREQ(l_disks[i]->driverName, "phy")) { + x_disks[i].format = DISK_FORMAT_RAW; + x_disks[i].backend = DISK_BACKEND_PHY; + } else { + libxlError(VIR_ERR_INTERNAL_ERROR, + _("libxenlight does not support disk driver %s"), + l_disks[i]->driverName); + goto error; + } + } else { + /* No driverName - default to raw/tap?? */ + x_disks[i].format = DISK_FORMAT_RAW; + x_disks[i].backend = DISK_BACKEND_TAP; + } + + /* How to set unpluggable? */ + x_disks[i].unpluggable = 1; + x_disks[i].readwrite = !l_disks[i]->readonly; + x_disks[i].is_cdrom = + l_disks[i]->device == VIR_DOMAIN_DISK_DEVICE_CDROM ? 1 : 0; + } + + d_config->disks = x_disks; + d_config->num_disks = ndisks; + + return 0; + +error: + for (i = 0; i < ndisks; i++) + libxl_device_disk_destroy(&x_disks[i]); + VIR_FREE(x_disks); + return -1; +} + +static int +libxlMakeNicList(virDomainDefPtr def, libxl_domain_config *d_config) +{ + virDomainNetDefPtr *l_nics = def->nets; + int nnics = def->nnets; + libxl_device_nic *x_nics; + int i; + + if (VIR_ALLOC_N(x_nics, nnics) < 0) { + virReportOOMError(); + return -1; + } + + for (i = 0; i < nnics; i++) { + x_nics[i].devid = i; + + // TODO: Where is mtu stored? + x_nics[i].mtu = 1492; + + memcpy(x_nics[i].mac, l_nics[i]->mac, sizeof(libxl_mac)); + + if (l_nics[i]->model && !STREQ(l_nics[i]->model, "netfront")) { + if ((x_nics[i].model = strdup(l_nics[i]->model)) == NULL) { + virReportOOMError(); + goto error; + } + x_nics[i].nictype = NICTYPE_IOEMU; + } else { + x_nics[i].nictype = NICTYPE_VIF; + } + + if (l_nics[i]->ifname && + (x_nics[i].ifname = strdup(l_nics[i]->ifname)) == NULL) { + virReportOOMError(); + goto error; + } + + if (l_nics[i]->type == VIR_DOMAIN_NET_TYPE_BRIDGE) { + if (l_nics[i]->data.bridge.brname && + (x_nics[i].bridge = + strdup(l_nics[i]->data.bridge.brname)) == NULL) { + virReportOOMError(); + goto error; + } + if (l_nics[i]->data.bridge.script && + (x_nics[i].script = + strdup(l_nics[i]->data.bridge.script)) == NULL) { + virReportOOMError(); + goto error; + } + } + + //TODO + //x_nics[i].ip = ; + } + + d_config->vifs = x_nics; + d_config->num_vifs = nnics; + + return 0; + +error: + for (i = 0; i < nnics; i++) + libxl_device_nic_destroy(&x_nics[i]); + VIR_FREE(x_nics); + return -1; +} + +static int +libxlMakeVfbList(libxlDriverPrivatePtr driver, + virDomainDefPtr def, libxl_domain_config *d_config) +{ + virDomainGraphicsDefPtr *l_vfbs = def->graphics; + int nvfbs = def->ngraphics; + libxl_device_vfb *x_vfbs; + libxl_device_vkb *x_vkbs; + int i; + int port; + + if (nvfbs == 0) + return 0; + + if (VIR_ALLOC_N(x_vfbs, nvfbs) < 0) { + virReportOOMError(); + return -1; + } + if (VIR_ALLOC_N(x_vkbs, nvfbs) < 0) { + virReportOOMError(); + VIR_FREE(x_vfbs); + return -1; + } + + for (i = 0; i < nvfbs; i++) { + libxl_device_vfb_init(&x_vfbs[i], i); + libxl_device_vkb_init(&x_vkbs[i], i); + + switch (l_vfbs[i]->type) { + case VIR_DOMAIN_GRAPHICS_TYPE_SDL: + x_vfbs[i].sdl = 1; + if (l_vfbs[i]->data.sdl.display && + (x_vfbs[i].display = + strdup(l_vfbs[i]->data.sdl.display)) == NULL) { + virReportOOMError(); + goto error; + } + if (l_vfbs[i]->data.sdl.xauth && + (x_vfbs[i].xauthority = + strdup(l_vfbs[i]->data.sdl.xauth)) == NULL) { + virReportOOMError(); + goto error; + } + break; + case VIR_DOMAIN_GRAPHICS_TYPE_VNC: + x_vfbs[i].vnc = 1; + /* driver handles selection of free port */ + x_vfbs[i].vncunused = 0; + if (l_vfbs[i]->data.vnc.autoport) { + port = libxlNextFreeVncPort(driver, LIBXL_VNC_PORT_MIN); + if (port < 0) { + libxlError(VIR_ERR_INTERNAL_ERROR, + "%s", _("Unable to find an unused VNC port")); + goto error; + } + l_vfbs[i]->data.vnc.port = port; + } + x_vfbs[i].vncdisplay = l_vfbs[i]->data.vnc.port - + LIBXL_VNC_PORT_MIN; + + if (l_vfbs[i]->data.vnc.listenAddr) { + /* libxl_device_vfb_init() does strdup("127.0.0.1") */ + free(x_vfbs[i].vnclisten); + if ((x_vfbs[i].vnclisten = + strdup(l_vfbs[i]->data.vnc.listenAddr)) == NULL) { + virReportOOMError(); + goto error; + } + } + if (l_vfbs[i]->data.vnc.keymap && + (x_vfbs[i].keymap = + strdup(l_vfbs[i]->data.vnc.keymap)) == NULL) { + virReportOOMError(); + goto error; + } + break; + } + } + + d_config->vfbs = x_vfbs; + d_config->vkbs = x_vkbs; + d_config->num_vfbs = d_config->num_vkbs = nvfbs; + + return 0; + +error: + for (i = 0; i < nvfbs; i++) { + libxl_device_vfb_destroy(&x_vfbs[i]); + libxl_device_vkb_destroy(&x_vkbs[i]); + } + VIR_FREE(x_vfbs); + VIR_FREE(x_vkbs); + return -1; +} + +static int +libxlMakeChrdevStr(virDomainChrDefPtr def, char **buf) +{ + const char *type = virDomainChrTypeToString(def->source.type); + + if (!type) { + libxlError(VIR_ERR_INTERNAL_ERROR, + "%s", _("unexpected chr device type")); + return -1; + } + + switch (def->source.type) { + case VIR_DOMAIN_CHR_TYPE_NULL: + case VIR_DOMAIN_CHR_TYPE_STDIO: + case VIR_DOMAIN_CHR_TYPE_VC: + case VIR_DOMAIN_CHR_TYPE_PTY: + if (virAsprintf(buf, "%s", type) < 0) { + virReportOOMError(); + return -1; + } + break; + + case VIR_DOMAIN_CHR_TYPE_FILE: + case VIR_DOMAIN_CHR_TYPE_PIPE: + if (virAsprintf(buf, "%s:%s", type, + def->source.data.file.path) < 0) { + virReportOOMError(); + return -1; + } + break; + + case VIR_DOMAIN_CHR_TYPE_DEV: + if (virAsprintf(buf, "%s", def->source.data.file.path) < 0) { + virReportOOMError(); + return -1; + } + break; + } + + return 0; +} + +static int +libxlMakeDeviceModelInfo(virDomainDefPtr def, libxl_domain_config *d_config) +{ + libxl_device_model_info *dm_info = &d_config->dm_info; + int i; + char b_order[VIR_DOMAIN_BOOT_LAST+1]; + + libxl_init_dm_info(dm_info, &d_config->c_info, &d_config->b_info); + + if (d_config->b_info.hvm) { + /* HVM-specific device model info */ + dm_info->type = XENFV; + if (def->os.nBootDevs > 0) { + free(dm_info->boot); + for (i = 0; i < def->os.nBootDevs; i++) { + switch (def->os.bootDevs[i]) { + case VIR_DOMAIN_BOOT_FLOPPY: + b_order[i] = 'a'; + break; + default: + case VIR_DOMAIN_BOOT_DISK: + b_order[i] = 'c'; + break; + case VIR_DOMAIN_BOOT_CDROM: + b_order[i] = 'd'; + break; + case VIR_DOMAIN_BOOT_NET: + b_order[i] = 'n'; + break; + } + } + b_order[def->os.nBootDevs] = '\0'; + if ((dm_info->boot = strdup(b_order)) == NULL) { + virReportOOMError(); + goto error; + } + } + if (def->serials && + (libxlMakeChrdevStr(def->serials[0], &dm_info->serial) < 0)) + goto error; + } else { + /* PV-specific device model info */ + dm_info->type = XENPV; + } + + /* Build qemu graphics options from previously parsed vfb */ + if (d_config->num_vfbs > 0) { + if (d_config->vfbs[0].vnc) { + dm_info->vnc = 1; + /* driver handles selection of free port */ + dm_info->vncunused = 0; + if (d_config->vfbs[0].vnclisten) { + free(dm_info->vnclisten); + if ((dm_info->vnclisten = + strdup(d_config->vfbs[0].vnclisten)) == NULL) { + virReportOOMError(); + goto error; + } + } + if (d_config->vfbs[0].keymap && + (dm_info->keymap = strdup(d_config->vfbs[0].keymap)) == NULL) { + virReportOOMError(); + goto error; + } + dm_info->vncdisplay = d_config->vfbs[0].vncdisplay; + if (d_config->vfbs[0].vncpasswd && + (dm_info->vncpasswd = + strdup(d_config->vfbs[0].vncpasswd)) == NULL) { + virReportOOMError(); + goto error; + } + } else if (d_config->vfbs[0].sdl) { + dm_info->sdl = 1; + dm_info->vnc = 0; + } + } else if (d_config->num_vfbs == 0) { + dm_info->nographic = 1; + dm_info->vnc = 0; + } + + // TODO + //dm_info->usb = ; + //dm_info->usbdevice = ; + //dm_info->soundhw = ; + + return 0; + +error: + libxl_device_model_info_destroy(dm_info); + return -1; +} + +virCapsPtr +libxlMakeCapabilities(libxl_ctx *ctx) +{ + libxl_physinfo phy_info; + const libxl_version_info *ver_info; + struct utsname utsname; + + regcomp (&xen_cap_rec, xen_cap_re, REG_EXTENDED); + + if (libxl_get_physinfo(ctx, &phy_info) != 0) { + libxlError(VIR_ERR_INTERNAL_ERROR, + _("Failed to get node physical info from libxenlight")); + return NULL; + } + + if ((ver_info = libxl_get_version_info(ctx)) == NULL) { + libxlError(VIR_ERR_INTERNAL_ERROR, + _("Failed to get version info from libxenlight")); + return NULL; + } + + uname(&utsname); + + return libxlMakeCapabilitiesInternal(utsname.machine, + &phy_info, + ver_info->capabilities); +} + +int +libxlBuildDomainConfig(libxlDriverPrivatePtr driver, + virDomainDefPtr def, libxl_domain_config *d_config) +{ + + if (libxlMakeDomCreateInfo(def, &d_config->c_info) < 0) + return -1; + + if (libxlMakeDomBuildInfo(def, d_config) < 0) { + goto error; + } + + if (libxlMakeDiskList(def, d_config) < 0) { + goto error; + } + + if (libxlMakeNicList(def, d_config) < 0) { + goto error; + } + + if (libxlMakeVfbList(driver, def, d_config) < 0) { + goto error; + } + + if (libxlMakeDeviceModelInfo(def, d_config) < 0) { + goto error; + } + + d_config->on_reboot = def->onReboot; + d_config->on_poweroff = def->onPoweroff; + d_config->on_crash = def->onCrash; + + return 0; + +error: + libxl_domain_config_destroy(d_config); + return -1; +} diff --git a/src/libxl/libxl_conf.h b/src/libxl/libxl_conf.h new file mode 100644 index 0000000..bb49d35 --- /dev/null +++ b/src/libxl/libxl_conf.h @@ -0,0 +1,91 @@ +/*---------------------------------------------------------------------------*/ +/* Copyright (c) 2011 SUSE LINUX Products GmbH, Nuernberg, Germany. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +/*---------------------------------------------------------------------------*/ + +#ifndef LIBXL_CONF_H +# define LIBXL_CONF_H + +# include <config.h> + +# include <libxl.h> + +# include "internal.h" +# include "domain_conf.h" +# include "capabilities.h" +# include "configmake.h" +# include "bitmap.h" + + +# define LIBXL_VNC_PORT_MIN 5900 +# define LIBXL_VNC_PORT_MAX 65535 + +# define LIBXL_CONFIG_DIR SYSCONFDIR "/libvirt/libxl" +# define LIBXL_AUTOSTART_DIR LIBXL_CONFIG_DIR "/autostart" +# define LIBXL_STATE_DIR LOCALSTATEDIR "/run/libvirt/libxl" +# define LIBXL_LOG_DIR LOCALSTATEDIR "/log/libvirt/libxl" +# define LIBXL_LIB_DIR LOCALSTATEDIR "/lib/libvirt/libxl" +# define LIBXL_SAVE_DIR LIBXL_LIB_DIR "/save" + + +typedef struct _libxlDriverPrivate libxlDriverPrivate; +typedef libxlDriverPrivate *libxlDriverPrivatePtr; +struct _libxlDriverPrivate { + virMutex lock; + virCapsPtr caps; + unsigned int version; + + FILE *logger_file; + xentoollog_logger *logger; + /* libxl ctx for driver wide ops; getVersion, getNodeInfo, ... */ + libxl_ctx ctx; + + virBitmapPtr reservedVNCPorts; + virDomainObjList domains; + + char *configDir; + char *autostartDir; + char *logDir; + char *stateDir; + char *libDir; + char *saveDir; +}; + +typedef struct _libxlDomainObjPrivate libxlDomainObjPrivate; +typedef libxlDomainObjPrivate *libxlDomainObjPrivatePtr; +struct _libxlDomainObjPrivate { + /* per domain libxl ctx */ + libxl_ctx ctx; + libxl_waiter *dWaiter; + int waiterFD; + int eventHdl; +}; + + +# define libxlError(code, ...) \ + virReportErrorHelper(NULL, VIR_FROM_LIBXL, code, __FILE__, \ + __FUNCTION__, __LINE__, __VA_ARGS__) + +virCapsPtr +libxlMakeCapabilities(libxl_ctx *ctx); + +int +libxlBuildDomainConfig(libxlDriverPrivatePtr driver, + virDomainDefPtr def, libxl_domain_config *d_config); + + +#endif /* LIBXL_CONF_H */ diff --git a/src/libxl/libxl_driver.c b/src/libxl/libxl_driver.c new file mode 100644 index 0000000..d137474 --- /dev/null +++ b/src/libxl/libxl_driver.c @@ -0,0 +1,1411 @@ +/*---------------------------------------------------------------------------*/ +/* Copyright (c) 2011 SUSE LINUX Products GmbH, Nuernberg, Germany. + * Copyright (C) 2011 Univention GmbH. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +/*---------------------------------------------------------------------------*/ + +#include <config.h> + +#include <sys/utsname.h> +#include <libxl.h> + +#include "internal.h" +#include "logging.h" +#include "virterror_internal.h" +#include "datatypes.h" +#include "files.h" +#include "memory.h" +#include "event.h" +#include "uuid.h" +#include "libxl_driver.h" +#include "libxl_conf.h" + + +#define VIR_FROM_THIS VIR_FROM_LIBXL + +#define LIBXL_DOM_REQ_POWEROFF 0 +#define LIBXL_DOM_REQ_REBOOT 1 +#define LIBXL_DOM_REQ_SUSPEND 2 +#define LIBXL_DOM_REQ_CRASH 3 +#define LIBXL_DOM_REQ_HALT 4 + +static libxlDriverPrivatePtr libxl_driver = NULL; + + +/* Function declarations */ +static int +libxlVmStart(libxlDriverPrivatePtr driver, + virDomainObjPtr vm, bool start_paused); + + +/* Function definitions */ +static void +libxlDriverLock(libxlDriverPrivatePtr driver) +{ + virMutexLock(&driver->lock); +} + +static void +libxlDriverUnlock(libxlDriverPrivatePtr driver) +{ + virMutexUnlock(&driver->lock); +} + +static void * +libxlDomainObjPrivateAlloc(void) +{ + libxlDomainObjPrivatePtr priv; + + if (VIR_ALLOC(priv) < 0) + return NULL; + + libxl_ctx_init(&priv->ctx, LIBXL_VERSION, libxl_driver->logger); + priv->waiterFD = -1; + priv->eventHdl = -1; + + return priv; +} + +static void +libxlDomainObjPrivateFree(void *data) +{ + libxlDomainObjPrivatePtr priv = data; + + if (priv->dWaiter) { + libxl_free_waiter(priv->dWaiter); + VIR_FREE(priv->dWaiter); + } + libxl_ctx_free(&priv->ctx); + VIR_FREE(priv); +} + +/* + * Cleanup function for domain that has reached shutoff state. + * + * virDomainObjPtr should be locked on invocation + */ +static void +libxlVmCleanup(libxlDriverPrivatePtr driver, virDomainObjPtr vm) +{ + libxlDomainObjPrivatePtr priv = vm->privateData; + int vnc_port; + char *file; + + if (priv->dWaiter) { + libxl_free_waiter(priv->dWaiter); + VIR_FREE(priv->dWaiter); + } + + if (vm->persistent) { + vm->def->id = -1; + vm->state = VIR_DOMAIN_SHUTOFF; + } + + if ((vm->def->ngraphics == 1) && + vm->def->graphics[0]->type == VIR_DOMAIN_GRAPHICS_TYPE_VNC && + vm->def->graphics[0]->data.vnc.autoport) { + vnc_port = vm->def->graphics[0]->data.vnc.port; + if (vnc_port >= LIBXL_VNC_PORT_MIN) { + if (virBitmapClearBit(driver->reservedVNCPorts, + vnc_port - LIBXL_VNC_PORT_MIN) < 0) + VIR_DEBUG("Could not mark port %d as unused", vnc_port); + } + } + + if (virAsprintf(&file, "%s/%s.xml", driver->stateDir, vm->def->name) > 0) { + if (unlink(file) < 0 && errno != ENOENT && errno != ENOTDIR) + VIR_DEBUG("Failed to remove domain XML for %s", vm->def->name); + VIR_FREE(file); + } +} + +/* + * Reap a domain from libxenlight. + * + * virDomainObjPtr should be locked on invocation + */ +static int +libxlVmReap(libxlDriverPrivatePtr driver, virDomainObjPtr vm, int force) +{ + libxlDomainObjPrivatePtr priv = vm->privateData; + + if (libxl_domain_destroy(&priv->ctx, vm->def->id, force) < 0) { + libxlError(VIR_ERR_INTERNAL_ERROR, + _("Unable to cleanup domain %d"), vm->def->id); + return -1; + } + + libxlVmCleanup(driver, vm); + return 0; +} + +/* + * Handle previously registered event notification from libxenlight + */ +static void libxlEventHandler(int watch, + int fd, + int events, + void *data) +{ + libxlDriverPrivatePtr driver = libxl_driver; + virDomainObjPtr vm = data; + libxlDomainObjPrivatePtr priv; + libxl_event event; + libxl_dominfo info; + + libxlDriverLock(driver); + virDomainObjLock(vm); + libxlDriverUnlock(driver); + + priv = vm->privateData; + + memset(&event, 0, sizeof(event)); + memset(&info, 0, sizeof(info)); + + if (priv->waiterFD != fd || priv->eventHdl != watch) { + virEventRemoveHandle(watch); + goto cleanup; + } + + if (!(events & VIR_EVENT_HANDLE_READABLE)) + goto cleanup; + + if (libxl_get_event(&priv->ctx, &event)) + goto cleanup; + + if (event.type == LIBXL_EVENT_DOMAIN_DEATH) { + /* libxl_event_get_domain_death_info returns 1 if death + * event was for this domid */ + if (libxl_event_get_domain_death_info(&priv->ctx, + vm->def->id, + &event, + &info) != 1) + goto cleanup; + + virEventRemoveHandle(watch); + switch (info.shutdown_reason) { + case SHUTDOWN_poweroff: + case SHUTDOWN_crash: + libxlVmReap(driver, vm, 0); + if (!vm->persistent) { + virDomainRemoveInactive(&driver->domains, vm); + vm = NULL; + } + break; + case SHUTDOWN_reboot: + libxlVmReap(driver, vm, 0); + libxlVmStart(driver, vm, 0); + break; + default: + VIR_INFO("Unhandled shutdown_reason %d", info.shutdown_reason); + break; + } + } + +cleanup: + if (vm) + virDomainObjUnlock(vm); + libxl_free_event(&event); +} + +/* + * Register domain events with libxenlight and insert event handles + * in libvirt's event loop. + */ +static int +libxlCreateDomEvents(virDomainObjPtr vm) +{ + libxlDomainObjPrivatePtr priv = vm->privateData; + int fd; + + /* Do we already have a waiter for this domain? */ + if (priv->dWaiter == NULL) { + if (VIR_ALLOC(priv->dWaiter) < 0) { + virReportOOMError(); + return -1; + } + + if (libxl_wait_for_domain_death(&priv->ctx, + vm->def->id, + priv->dWaiter)) + goto error; + } + + libxl_get_wait_fd(&priv->ctx, &fd); + if (fd < 0) + goto error; + + priv->waiterFD = fd; + if ((priv->eventHdl = virEventAddHandle( + fd, + VIR_EVENT_HANDLE_READABLE | VIR_EVENT_HANDLE_ERROR, + libxlEventHandler, + vm, NULL)) < 0) + goto error; + + return 0; + +error: + libxl_free_waiter(priv->dWaiter); + VIR_FREE(priv->dWaiter); + return -1; +} + +/* + * Start a domain through libxenlight. + * + * virDomainObjPtr should be locked on invocation + */ +static int +libxlVmStart(libxlDriverPrivatePtr driver, + virDomainObjPtr vm, bool start_paused) +{ + libxl_domain_config d_config; + virDomainDefPtr def = vm->def; + int ret; + uint32_t domid = 0; + char *dom_xml = NULL; + pid_t child_console_pid = -1; + libxlDomainObjPrivatePtr priv = vm->privateData; + + memset(&d_config, 0, sizeof(d_config)); + + if (libxlBuildDomainConfig(driver, def, &d_config) < 0 ) + return -1; + + //TODO: Balloon dom0 ?? + //ret = freemem(&d_config->b_info, &d_config->dm_info); + + ret = libxl_domain_create_new(&priv->ctx, &d_config, + NULL, &child_console_pid, &domid); + if (ret) { + libxlError(VIR_ERR_INTERNAL_ERROR, + _("libxenlight failed to create new domain '%s'"), + d_config.c_info.name); + goto error; + } + + def->id = domid; + if ((dom_xml = virDomainDefFormat(def, 0)) == NULL) + goto error; + + if(libxl_userdata_store(&priv->ctx, domid, "libvirt-xml", + (uint8_t *)dom_xml, strlen(dom_xml) + 1)) { + libxlError(VIR_ERR_INTERNAL_ERROR, + _("libxenlight failed to store userdata")); + goto error; + } + + if (libxlCreateDomEvents(vm) < 0) + goto error; + + if (!start_paused) { + libxl_domain_unpause(&priv->ctx, domid); + vm->state = VIR_DOMAIN_RUNNING; + } else { + vm->state = VIR_DOMAIN_PAUSED; + } + + if (virDomainSaveStatus(driver->caps, driver->stateDir, vm) < 0) + goto error; + + libxl_domain_config_destroy(&d_config); + VIR_FREE(dom_xml); + return 0; + +error: + if (domid > 0) { + libxl_domain_destroy(&priv->ctx, domid, 0); + def->id = -1; + vm->state = VIR_DOMAIN_SHUTOFF; + } + libxl_domain_config_destroy(&d_config); + VIR_FREE(dom_xml); + return -1; +} + + +/* + * Reconnect to running domains that were previously started/created + * with libxenlight driver. + */ +static void +libxlReconnectDomain(void *payload, + const void *name ATTRIBUTE_UNUSED, + void *opaque) +{ + virDomainObjPtr vm = payload; + libxlDriverPrivatePtr driver = opaque; + int rc; + libxl_dominfo d_info; + int len; + uint8_t *data = NULL; + + virDomainObjLock(vm); + + /* Does domain still exist? */ + rc = libxl_domain_info(&driver->ctx, &d_info, vm->def->id); + if (rc == ERROR_INVAL) { + goto out; + } else if (rc != 0) { + VIR_DEBUG("libxl_domain_info failed (code %d), ignoring domain %d", + rc, vm->def->id); + goto out; + } + + /* Is this a domain that was under libvirt control? */ + if (libxl_userdata_retrieve(&driver->ctx, vm->def->id, + "libvirt-xml", &data, &len)) { + VIR_DEBUG("libxl_userdata_retrieve failed, ignoring domain %d", vm->def->id); + goto out; + } + + /* Update domid in case it changed (e.g. reboot) while we were gone? */ + vm->def->id = d_info.domid; + vm->state = VIR_DOMAIN_RUNNING; + + /* Recreate domain death et. al. events */ + libxlCreateDomEvents(vm); + virDomainObjUnlock(vm); + return; + +out: + libxlVmCleanup(driver, vm); + if (!vm->persistent) + virDomainRemoveInactive(&driver->domains, vm); + else + virDomainObjUnlock(vm); +} + +static void +libxlReconnectDomains(libxlDriverPrivatePtr driver) +{ + virHashForEach(driver->domains.objs, libxlReconnectDomain, driver); +} + +static int +libxlShutdown(void) +{ + if (!libxl_driver) + return -1; + + libxlDriverLock(libxl_driver); + virCapabilitiesFree(libxl_driver->caps); + virDomainObjListDeinit(&libxl_driver->domains); + libxl_ctx_free(&libxl_driver->ctx); + xtl_logger_destroy(libxl_driver->logger); + if (libxl_driver->logger_file) + VIR_FORCE_FCLOSE(libxl_driver->logger_file); + + virBitmapFree(libxl_driver->reservedVNCPorts); + + VIR_FREE(libxl_driver->configDir); + VIR_FREE(libxl_driver->autostartDir); + VIR_FREE(libxl_driver->logDir); + VIR_FREE(libxl_driver->stateDir); + VIR_FREE(libxl_driver->libDir); + VIR_FREE(libxl_driver->saveDir); + + libxlDriverUnlock(libxl_driver); + virMutexDestroy(&libxl_driver->lock); + VIR_FREE(libxl_driver); + + return 0; +} + +static int +libxlStartup(int privileged) { + const libxl_version_info *ver_info; + char *log_file = NULL; + + /* Check that the user is root, silently disable if not */ + if (!privileged) { + VIR_INFO0("Not running privileged, disabling libxenlight driver"); + return 0; + } + + if (VIR_ALLOC(libxl_driver) < 0) + return -1; + + if (virMutexInit(&libxl_driver->lock) < 0) { + VIR_ERROR0(_("cannot initialize mutex")); + VIR_FREE(libxl_driver); + return -1; + } + libxlDriverLock(libxl_driver); + + /* Allocate bitmap for vnc port reservation */ + if ((libxl_driver->reservedVNCPorts = + virBitmapAlloc(LIBXL_VNC_PORT_MAX - LIBXL_VNC_PORT_MIN)) == NULL) + goto out_of_memory; + + if (virDomainObjListInit(&libxl_driver->domains) < 0) + goto out_of_memory; + + if (virAsprintf(&libxl_driver->configDir, + "%s", LIBXL_CONFIG_DIR) == -1) + goto out_of_memory; + + if (virAsprintf(&libxl_driver->autostartDir, + "%s", LIBXL_AUTOSTART_DIR) == -1) + goto out_of_memory; + + if (virAsprintf(&libxl_driver->logDir, + "%s", LIBXL_LOG_DIR) == -1) + goto out_of_memory; + + if (virAsprintf(&libxl_driver->stateDir, + "%s", LIBXL_STATE_DIR) == -1) + goto out_of_memory; + + if (virAsprintf(&libxl_driver->libDir, + "%s", LIBXL_LIB_DIR) == -1) + goto out_of_memory; + + if (virAsprintf(&libxl_driver->saveDir, + "%s", LIBXL_SAVE_DIR) == -1) + goto out_of_memory; + + if (virFileMakePath(libxl_driver->logDir) != 0) { + char ebuf[1024]; + VIR_ERROR(_("Failed to create log dir '%s': %s"), + libxl_driver->logDir, virStrerror(errno, ebuf, sizeof ebuf)); + goto error; + } + if (virFileMakePath(libxl_driver->stateDir) != 0) { + char ebuf[1024]; + VIR_ERROR(_("Failed to create state dir '%s': %s"), + libxl_driver->stateDir, virStrerror(errno, ebuf, sizeof ebuf)); + goto error; + } + if (virFileMakePath(libxl_driver->libDir) != 0) { + char ebuf[1024]; + VIR_ERROR(_("Failed to create lib dir '%s': %s"), + libxl_driver->libDir, virStrerror(errno, ebuf, sizeof ebuf)); + goto error; + } + if (virFileMakePath(libxl_driver->saveDir) != 0) { + char ebuf[1024]; + VIR_ERROR(_("Failed to create save dir '%s': %s"), + libxl_driver->saveDir, virStrerror(errno, ebuf, sizeof ebuf)); + goto error; + } + + if (virAsprintf(&log_file, "%s/libxl.log", libxl_driver->logDir) < 0) { + goto out_of_memory; + } + + if ((libxl_driver->logger_file = fopen(log_file, "a")) == NULL) { + virReportSystemError(errno, + _("failed to create logfile %s"), + log_file); + goto error; + } + VIR_FREE(log_file); + + libxl_driver->logger = + (xentoollog_logger *)xtl_createlogger_stdiostream(libxl_driver->logger_file, XTL_DEBUG, 0); + if (!libxl_driver->logger) { + VIR_ERROR0(_("cannot create logger for libxenlight")); + goto error; + } + + if (libxl_ctx_init(&libxl_driver->ctx, + LIBXL_VERSION, + libxl_driver->logger)) { + VIR_ERROR0(_("cannot initialize libxenlight context")); + goto error; + } + + if ((ver_info = libxl_get_version_info(&libxl_driver->ctx)) == NULL) { + VIR_ERROR0(_("cannot version information from libxenlight")); + goto error; + } + libxl_driver->version = (ver_info->xen_version_major * 1000000) + + (ver_info->xen_version_minor * 1000); + + if ((libxl_driver->caps = + libxlMakeCapabilities(&libxl_driver->ctx)) == NULL) { + VIR_ERROR0(_("cannot create capabilities for libxenlight")); + goto error; + } + + libxl_driver->caps->privateDataAllocFunc = libxlDomainObjPrivateAlloc; + libxl_driver->caps->privateDataFreeFunc = libxlDomainObjPrivateFree; + + /* Load running domains first. */ + if (virDomainLoadAllConfigs(libxl_driver->caps, + &libxl_driver->domains, + libxl_driver->stateDir, + libxl_driver->autostartDir, + 1, NULL, NULL) < 0) + goto error; + + libxlReconnectDomains(libxl_driver); + + /* Then inactive persistent configs */ + if (virDomainLoadAllConfigs(libxl_driver->caps, + &libxl_driver->domains, + libxl_driver->configDir, + libxl_driver->autostartDir, + 0, NULL, NULL) < 0) + goto error; + + libxlDriverUnlock(libxl_driver); + + // TODO: autostart domains + //libxlAutostartConfigs(libxl_driver); + + return 0; + +out_of_memory: + virReportOOMError(); +error: + VIR_FREE(log_file); + if (libxl_driver) + libxlDriverUnlock(libxl_driver); + libxlShutdown(); + return -1; +} + +static int +libxlReload(void) +{ + if (!libxl_driver) + return 0; + + libxlDriverLock(libxl_driver); + virDomainLoadAllConfigs(libxl_driver->caps, + &libxl_driver->domains, + libxl_driver->configDir, + libxl_driver->autostartDir, + 0, NULL, libxl_driver); + libxlDriverUnlock(libxl_driver); + + // TODO + //libxlAutostartConfigs(libxl_driver); + + return 0; +} + +static int +libxlActive(void) +{ + if (!libxl_driver) + return 0; + + return 1; +} + +static virDrvOpenStatus +libxlOpen(virConnectPtr conn, + virConnectAuthPtr auth ATTRIBUTE_UNUSED, + int flags ATTRIBUTE_UNUSED) +{ + if (conn->uri == NULL) { + if (libxl_driver == NULL) + return VIR_DRV_OPEN_DECLINED; + + conn->uri = xmlParseURI("libxl:///"); + if (!conn->uri) { + virReportOOMError(); + return VIR_DRV_OPEN_ERROR; + } + } else { + if (conn->uri->scheme == NULL || STRNEQ(conn->uri->scheme, "libxl")) + return VIR_DRV_OPEN_DECLINED; + + /* If server name is given, its for remote driver */ + if (conn->uri->server != NULL) + return VIR_DRV_OPEN_DECLINED; + + if (libxl_driver == NULL) { + libxlError(VIR_ERR_INTERNAL_ERROR, "%s", + _("libxenlight state driver is not active")); + return VIR_DRV_OPEN_ERROR; + } + + /* /session isn't supported in libxenlight */ + if (conn->uri->path && + STRNEQ(conn->uri->path, "") && + STRNEQ(conn->uri->path, "/") && + STRNEQ(conn->uri->path, "/system")) { + libxlError(VIR_ERR_INTERNAL_ERROR, + _("unexpected Xen URI path '%s', try libxl:///"), + NULLSTR(conn->uri->path)); + return VIR_DRV_OPEN_ERROR; + } + } + + conn->privateData = libxl_driver; + + return VIR_DRV_OPEN_SUCCESS; +}; + +static int +libxlClose(virConnectPtr conn ATTRIBUTE_UNUSED) +{ + conn->privateData = NULL; + return 0; +} + +static const char * +libxlGetType(virConnectPtr conn ATTRIBUTE_UNUSED) +{ + return "libxl"; +} + +static int +libxlGetVersion(virConnectPtr conn, unsigned long *version) +{ + libxlDriverPrivatePtr driver = conn->privateData; + + libxlDriverLock(driver); + *version = driver->version; + libxlDriverUnlock(driver); + return 0; +} + +static int +libxlGetMaxVcpus(virConnectPtr conn, const char *type ATTRIBUTE_UNUSED) +{ + int ret; + libxlDriverPrivatePtr driver = conn->privateData; + + ret = libxl_get_max_cpus(&driver->ctx); + /* libxl_get_max_cpus() will return 0 if there were any failures, + e.g. xc_physinfo() failing */ + if (ret == 0) + return -1; + + return ret; +} + +static int +libxlNodeGetInfo(virConnectPtr conn, virNodeInfoPtr info) +{ + libxl_physinfo phy_info; + const libxl_version_info* ver_info; + libxlDriverPrivatePtr driver = conn->privateData; + struct utsname utsname; + + if (libxl_get_physinfo(&driver->ctx, &phy_info)) { + libxlError(VIR_ERR_INTERNAL_ERROR, + _("libxl_get_physinfo_info failed")); + return -1; + } + + if ((ver_info = libxl_get_version_info(&driver->ctx)) == NULL) { + libxlError(VIR_ERR_INTERNAL_ERROR, + _("libxl_get_version_info failed")); + return -1; + } + + uname(&utsname); + if (virStrncpy(info->model, + utsname.machine, + strlen(utsname.machine), + sizeof(info->model)) == NULL) { + libxlError(VIR_ERR_INTERNAL_ERROR, + _("machine type %s too big for destination"), + utsname.machine); + return -1; + } + + info->memory = phy_info.total_pages * (ver_info->pagesize / 1024); + info->cpus = phy_info.nr_cpus; + info->nodes = phy_info.nr_nodes; + info->cores = phy_info.cores_per_socket; + info->threads = phy_info.threads_per_core; + info->sockets = 1; + info->mhz = phy_info.cpu_khz / 1000; + return 0; +} + +static char * +libxlGetCapabilities(virConnectPtr conn) +{ + libxlDriverPrivatePtr driver = conn->privateData; + char *xml; + + libxlDriverLock(driver); + if ((xml = virCapabilitiesFormatXML(driver->caps)) == NULL) + virReportOOMError(); + libxlDriverUnlock(driver); + + return xml; +} + +static int +libxlListDomains(virConnectPtr conn, int *ids, int nids) +{ + libxlDriverPrivatePtr driver = conn->privateData; + int n; + + libxlDriverLock(driver); + n = virDomainObjListGetActiveIDs(&driver->domains, ids, nids); + libxlDriverUnlock(driver); + + return n; +} + +static int +libxlNumDomains(virConnectPtr conn) +{ + libxlDriverPrivatePtr driver = conn->privateData; + int n; + + libxlDriverLock(driver); + n = virDomainObjListNumOfDomains(&driver->domains, 1); + libxlDriverUnlock(driver); + + return n; +} + +static virDomainPtr +libxlDomainCreateXML(virConnectPtr conn, const char *xml, + unsigned int flags) +{ + libxlDriverPrivatePtr driver = conn->privateData; + virDomainDefPtr def; + virDomainObjPtr vm = NULL; + virDomainPtr dom = NULL; + + virCheckFlags(VIR_DOMAIN_START_PAUSED, NULL); + + libxlDriverLock(driver); + if (!(def = virDomainDefParseString(driver->caps, xml, + VIR_DOMAIN_XML_INACTIVE))) + goto cleanup; + + if (virDomainObjIsDuplicate(&driver->domains, def, 1) < 0) + goto cleanup; + + if (!(vm = virDomainAssignDef(driver->caps, + &driver->domains, def, false))) + goto cleanup; + def = NULL; + + if (libxlVmStart(driver, vm, (flags & VIR_DOMAIN_START_PAUSED) != 0) < 0) { + virDomainRemoveInactive(&driver->domains, vm); + vm = NULL; + goto cleanup; + } + + dom = virGetDomain(conn, vm->def->name, vm->def->uuid); + if (dom) + dom->id = vm->def->id; + +cleanup: + virDomainDefFree(def); + if (vm) + virDomainObjUnlock(vm); + libxlDriverUnlock(driver); + return dom; +} + +static virDomainPtr +libxlDomainLookupByID(virConnectPtr conn, int id) +{ + libxlDriverPrivatePtr driver = conn->privateData; + virDomainObjPtr vm; + virDomainPtr dom = NULL; + + libxlDriverLock(driver); + vm = virDomainFindByID(&driver->domains, id); + libxlDriverUnlock(driver); + + if (!vm) { + libxlError(VIR_ERR_NO_DOMAIN, NULL); + goto cleanup; + } + + dom = virGetDomain(conn, vm->def->name, vm->def->uuid); + if (dom) + dom->id = vm->def->id; + + cleanup: + if (vm) + virDomainObjUnlock(vm); + return dom; +} + +static virDomainPtr +libxlDomainLookupByUUID(virConnectPtr conn, const unsigned char *uuid) +{ + libxlDriverPrivatePtr driver = conn->privateData; + virDomainObjPtr vm; + virDomainPtr dom = NULL; + + libxlDriverLock(driver); + vm = virDomainFindByUUID(&driver->domains, uuid); + libxlDriverUnlock(driver); + + if (!vm) { + libxlError(VIR_ERR_NO_DOMAIN, NULL); + goto cleanup; + } + + dom = virGetDomain(conn, vm->def->name, vm->def->uuid); + if (dom) + dom->id = vm->def->id; + + cleanup: + if (vm) + virDomainObjUnlock(vm); + return dom; +} + +static virDomainPtr +libxlDomainLookupByName(virConnectPtr conn, const char *name) +{ + libxlDriverPrivatePtr driver = conn->privateData; + virDomainObjPtr vm; + virDomainPtr dom = NULL; + + libxlDriverLock(driver); + vm = virDomainFindByName(&driver->domains, name); + libxlDriverUnlock(driver); + + if (!vm) { + libxlError(VIR_ERR_NO_DOMAIN, NULL); + goto cleanup; + } + + dom = virGetDomain(conn, vm->def->name, vm->def->uuid); + if (dom) + dom->id = vm->def->id; + + cleanup: + if (vm) + virDomainObjUnlock(vm); + return dom; +} + +static int +libxlDomainShutdown(virDomainPtr dom) +{ + libxlDriverPrivatePtr driver = dom->conn->privateData; + virDomainObjPtr vm; + int ret = -1; + libxlDomainObjPrivatePtr priv; + + libxlDriverLock(driver); + vm = virDomainFindByUUID(&driver->domains, dom->uuid); + if (!vm) { + char uuidstr[VIR_UUID_STRING_BUFLEN]; + virUUIDFormat(dom->uuid, uuidstr); + libxlError(VIR_ERR_NO_DOMAIN, + _("No domain with matching uuid '%s'"), uuidstr); + goto cleanup; + } + + if (!virDomainObjIsActive(vm)) { + libxlError(VIR_ERR_OPERATION_INVALID, + "%s", _("Domain is not running")); + goto cleanup; + } + + priv = vm->privateData; + if (libxl_domain_shutdown(&priv->ctx, dom->id, LIBXL_DOM_REQ_POWEROFF) != 0) { + libxlError(VIR_ERR_INTERNAL_ERROR, + _("Failed to shutdown domain '%d' with libxenlight"), + dom->id); + goto cleanup; + } + + /* vm is marked shutoff (or removed from domains list if not persistent) + * in shutdown event handler. + */ + ret = 0; + +cleanup: + if (vm) + virDomainObjUnlock(vm); + libxlDriverUnlock(driver); + return ret; +} + +static int +libxlDomainReboot(virDomainPtr dom, unsigned int flags ATTRIBUTE_UNUSED) +{ + libxlDriverPrivatePtr driver = dom->conn->privateData; + virDomainObjPtr vm; + int ret = -1; + libxlDomainObjPrivatePtr priv; + + libxlDriverLock(driver); + vm = virDomainFindByUUID(&driver->domains, dom->uuid); + if (!vm) { + char uuidstr[VIR_UUID_STRING_BUFLEN]; + virUUIDFormat(dom->uuid, uuidstr); + libxlError(VIR_ERR_NO_DOMAIN, + _("No domain with matching uuid '%s'"), uuidstr); + goto cleanup; + } + + if (!virDomainObjIsActive(vm)) { + libxlError(VIR_ERR_OPERATION_INVALID, + "%s", _("Domain is not running")); + goto cleanup; + } + + priv = vm->privateData; + if (libxl_domain_shutdown(&priv->ctx, dom->id, LIBXL_DOM_REQ_REBOOT) != 0) { + libxlError(VIR_ERR_INTERNAL_ERROR, + _("Failed to reboot domain '%d' with libxenlight"), + dom->id); + goto cleanup; + } + ret = 0; + +cleanup: + if (vm) + virDomainObjUnlock(vm); + libxlDriverUnlock(driver); + return ret; +} + +static int +libxlDomainDestroy(virDomainPtr dom) +{ + libxlDriverPrivatePtr driver = dom->conn->privateData; + virDomainObjPtr vm; + int ret = -1; + libxlDomainObjPrivatePtr priv; + + libxlDriverLock(driver); + vm = virDomainFindByUUID(&driver->domains, dom->uuid); + if (!vm) { + char uuidstr[VIR_UUID_STRING_BUFLEN]; + virUUIDFormat(dom->uuid, uuidstr); + libxlError(VIR_ERR_NO_DOMAIN, + _("No domain with matching uuid '%s'"), uuidstr); + goto cleanup; + } + + if (!virDomainObjIsActive(vm)) { + libxlError(VIR_ERR_OPERATION_INVALID, + "%s", _("Domain is not running")); + goto cleanup; + } + + priv = vm->privateData; + if (libxlVmReap(driver, vm, 1) != 0) { + libxlError(VIR_ERR_INTERNAL_ERROR, + _("Failed to destroy domain '%d'"), dom->id); + goto cleanup; + } + + if (!vm->persistent) { + virDomainRemoveInactive(&driver->domains, vm); + vm = NULL; + } + + ret = 0; + +cleanup: + if (vm) + virDomainObjUnlock(vm); + libxlDriverUnlock(driver); + return ret; +} + +static int +libxlDomainGetInfo(virDomainPtr dom, virDomainInfoPtr info) +{ + libxlDriverPrivatePtr driver = dom->conn->privateData; + virDomainObjPtr vm; + int ret = -1; + + libxlDriverLock(driver); + vm = virDomainFindByUUID(&driver->domains, dom->uuid); + libxlDriverUnlock(driver); + + if (!vm) { + libxlError(VIR_ERR_NO_DOMAIN, "%s", + _("no domain with matching uuid")); + goto cleanup; + } + + info->state = vm->state; + info->cpuTime = 0; + info->maxMem = vm->def->mem.max_balloon; + info->memory = vm->def->mem.cur_balloon; + info->nrVirtCpu = vm->def->vcpus; + ret = 0; + + cleanup: + if (vm) + virDomainObjUnlock(vm); + return ret; +} + +static char * +libxlDomainDumpXML(virDomainPtr dom, int flags) +{ + libxlDriverPrivatePtr driver = dom->conn->privateData; + virDomainObjPtr vm; + char *ret = NULL; + + libxlDriverLock(driver); + vm = virDomainFindByUUID(&driver->domains, dom->uuid); + libxlDriverUnlock(driver); + + if (!vm) { + libxlError(VIR_ERR_NO_DOMAIN, "%s", + _("no domain with matching uuid")); + goto cleanup; + } + + ret = virDomainDefFormat(vm->def, flags); + + cleanup: + if (vm) + virDomainObjUnlock(vm); + return ret; +} + +static int +libxlListDefinedDomains(virConnectPtr conn, + char **const names, int nnames) +{ + libxlDriverPrivatePtr driver = conn->privateData; + int n; + + libxlDriverLock(driver); + n = virDomainObjListGetInactiveNames(&driver->domains, names, nnames); + libxlDriverUnlock(driver); + return n; +} + +static int +libxlNumDefinedDomains(virConnectPtr conn) +{ + libxlDriverPrivatePtr driver = conn->privateData; + int n; + + libxlDriverLock(driver); + n = virDomainObjListNumOfDomains(&driver->domains, 0); + libxlDriverUnlock(driver); + + return n; +} + +static int +libxlDomainCreateWithFlags(virDomainPtr dom, + unsigned int flags ATTRIBUTE_UNUSED) +{ + libxlDriverPrivatePtr driver = dom->conn->privateData; + virDomainObjPtr vm; + int ret = -1; + + virCheckFlags(VIR_DOMAIN_START_PAUSED, -1); + + libxlDriverLock(driver); + vm = virDomainFindByUUID(&driver->domains, dom->uuid); + if (!vm) { + char uuidstr[VIR_UUID_STRING_BUFLEN]; + virUUIDFormat(dom->uuid, uuidstr); + libxlError(VIR_ERR_NO_DOMAIN, + _("No domain with matching uuid '%s'"), uuidstr); + goto cleanup; + } + + if (virDomainObjIsActive(vm)) { + libxlError(VIR_ERR_OPERATION_INVALID, + "%s", _("Domain is already running")); + goto cleanup; + } + + ret = libxlVmStart(driver, vm, (flags & VIR_DOMAIN_START_PAUSED) != 0); + +cleanup: + if (vm) + virDomainObjUnlock(vm); + libxlDriverUnlock(driver); + return ret; +} + +static int +libxlDomainCreate(virDomainPtr dom) +{ + return libxlDomainCreateWithFlags(dom, 0); +} + +static virDomainPtr +libxlDomainDefineXML(virConnectPtr conn, const char *xml) +{ + libxlDriverPrivatePtr driver = conn->privateData; + virDomainDefPtr def = NULL; + virDomainObjPtr vm = NULL; + virDomainPtr dom = NULL; + int dupVM; + + libxlDriverLock(driver); + if (!(def = virDomainDefParseString(driver->caps, xml, + VIR_DOMAIN_XML_INACTIVE))) + goto cleanup; + + if ((dupVM = virDomainObjIsDuplicate(&driver->domains, def, 0)) < 0) + goto cleanup; + + if (!(vm = virDomainAssignDef(driver->caps, + &driver->domains, def, false))) + goto cleanup; + def = NULL; + vm->persistent = 1; + + if (virDomainSaveConfig(driver->configDir, + vm->newDef ? vm->newDef : vm->def) < 0) { + virDomainRemoveInactive(&driver->domains, vm); + vm = NULL; + goto cleanup; + } + + dom = virGetDomain(conn, vm->def->name, vm->def->uuid); + if (dom) + dom->id = vm->def->id; + +cleanup: + virDomainDefFree(def); + if (vm) + virDomainObjUnlock(vm); + libxlDriverUnlock(driver); + return dom; +} + +static int +libxlDomainUndefine(virDomainPtr dom) +{ + libxlDriverPrivatePtr driver = dom->conn->privateData; + virDomainObjPtr vm; + int ret = -1; + + libxlDriverLock(driver); + vm = virDomainFindByUUID(&driver->domains, dom->uuid); + + if (!vm) { + char uuidstr[VIR_UUID_STRING_BUFLEN]; + + virUUIDFormat(dom->uuid, uuidstr); + libxlError(VIR_ERR_NO_DOMAIN, + _("no domain with matching uuid '%s'"), uuidstr); + goto cleanup; + } + + if (virDomainObjIsActive(vm)) { + libxlError(VIR_ERR_OPERATION_INVALID, + "%s", _("cannot undefine active domain")); + goto cleanup; + } + + if (!vm->persistent) { + libxlError(VIR_ERR_OPERATION_INVALID, + "%s", _("cannot undefine transient domain")); + goto cleanup; + } + + if (virDomainDeleteConfig(driver->configDir, + driver->autostartDir, + vm) < 0) + goto cleanup; + + virDomainRemoveInactive(&driver->domains, vm); + vm = NULL; + ret = 0; + + cleanup: + if (vm) + virDomainObjUnlock(vm); + libxlDriverUnlock(driver); + return ret; +} + +static int +libxlDomainIsActive(virDomainPtr dom) +{ + libxlDriverPrivatePtr driver = dom->conn->privateData; + virDomainObjPtr obj; + int ret = -1; + + libxlDriverLock(driver); + obj = virDomainFindByUUID(&driver->domains, dom->uuid); + libxlDriverUnlock(driver); + if (!obj) { + libxlError(VIR_ERR_NO_DOMAIN, NULL); + goto cleanup; + } + ret = virDomainObjIsActive(obj); + + cleanup: + if (obj) + virDomainObjUnlock(obj); + return ret; +} + +static int +libxlDomainIsPersistent(virDomainPtr dom) +{ + libxlDriverPrivatePtr driver = dom->conn->privateData; + virDomainObjPtr obj; + int ret = -1; + + libxlDriverLock(driver); + obj = virDomainFindByUUID(&driver->domains, dom->uuid); + libxlDriverUnlock(driver); + if (!obj) { + libxlError(VIR_ERR_NO_DOMAIN, NULL); + goto cleanup; + } + ret = obj->persistent; + + cleanup: + if (obj) + virDomainObjUnlock(obj); + return ret; +} + + +static virDriver libxlDriver = { + VIR_DRV_LIBXL, + "libxenlight", + libxlOpen, /* open */ + libxlClose, /* close */ + NULL, /* supports_feature */ + libxlGetType, /* type */ + libxlGetVersion, /* version */ + NULL, /* libvirtVersion (impl. in libvirt.c) */ + virGetHostname, /* getHostname */ + NULL, /* getSysinfo */ + libxlGetMaxVcpus, /* getMaxVcpus */ + libxlNodeGetInfo, /* nodeGetInfo */ + libxlGetCapabilities, /* getCapabilities */ + libxlListDomains, /* listDomains */ + libxlNumDomains, /* numOfDomains */ + libxlDomainCreateXML, /* domainCreateXML */ + libxlDomainLookupByID, /* domainLookupByID */ + libxlDomainLookupByUUID, /* domainLookupByUUID */ + libxlDomainLookupByName, /* domainLookupByName */ + NULL, /* domainSuspend */ + NULL, /* domainResume */ + libxlDomainShutdown, /* domainShutdown */ + libxlDomainReboot, /* domainReboot */ + libxlDomainDestroy, /* domainDestroy */ + NULL, /* domainGetOSType */ + NULL, /* domainGetMaxMemory */ + NULL, /* domainSetMaxMemory */ + NULL, /* domainSetMemory */ + libxlDomainGetInfo, /* domainGetInfo */ + NULL, /* domainSave */ + NULL, /* domainRestore */ + NULL, /* domainCoreDump */ + NULL, /* domainSetVcpus */ + NULL, /* domainSetVcpusFlags */ + NULL, /* domainGetVcpusFlags */ + NULL, /* domainPinVcpu */ + NULL, /* domainGetVcpus */ + NULL, /* domainGetMaxVcpus */ + NULL, /* domainGetSecurityLabel */ + NULL, /* nodeGetSecurityModel */ + libxlDomainDumpXML, /* domainDumpXML */ + NULL, /* domainXmlFromNative */ + NULL, /* domainXmlToNative */ + libxlListDefinedDomains, /* listDefinedDomains */ + libxlNumDefinedDomains, /* numOfDefinedDomains */ + libxlDomainCreate, /* domainCreate */ + libxlDomainCreateWithFlags, /* domainCreateWithFlags */ + libxlDomainDefineXML, /* domainDefineXML */ + libxlDomainUndefine, /* domainUndefine */ + NULL, /* domainAttachDevice */ + NULL, /* domainAttachDeviceFlags */ + NULL, /* domainDetachDevice */ + NULL, /* domainDetachDeviceFlags */ + NULL, /* domainUpdateDeviceFlags */ + NULL, /* domainGetAutostart */ + NULL, /* domainSetAutostart */ + NULL, /* domainGetSchedulerType */ + NULL, /* domainGetSchedulerParameters */ + NULL, /* domainSetSchedulerParameters */ + NULL, /* domainMigratePrepare */ + NULL, /* domainMigratePerform */ + NULL, /* domainMigrateFinish */ + NULL, /* domainBlockStats */ + NULL, /* domainInterfaceStats */ + NULL, /* domainMemoryStats */ + NULL, /* domainBlockPeek */ + NULL, /* domainMemoryPeek */ + NULL, /* domainGetBlockInfo */ + NULL, /* nodeGetCellsFreeMemory */ + NULL, /* getFreeMemory */ + NULL, /* domainEventRegister */ + NULL, /* domainEventDeregister */ + NULL, /* domainMigratePrepare2 */ + NULL, /* domainMigrateFinish2 */ + NULL, /* nodeDeviceDettach */ + NULL, /* nodeDeviceReAttach */ + NULL, /* nodeDeviceReset */ + NULL, /* domainMigratePrepareTunnel */ + NULL, /* IsEncrypted */ + NULL, /* IsSecure */ + libxlDomainIsActive, /* DomainIsActive */ + libxlDomainIsPersistent, /* DomainIsPersistent */ + NULL, /* domainIsUpdated */ + NULL, /* cpuCompare */ + NULL, /* cpuBaseline */ + NULL, /* domainGetJobInfo */ + NULL, /* domainAbortJob */ + NULL, /* domainMigrateSetMaxDowntime */ + NULL, /* domainEventRegisterAny */ + NULL, /* domainEventDeregisterAny */ + NULL, /* domainManagedSave */ + NULL, /* domainHasManagedSaveImage */ + NULL, /* domainManagedSaveRemove */ + NULL, /* domainSnapshotCreateXML */ + NULL, /* domainSnapshotDumpXML */ + NULL, /* domainSnapshotNum */ + NULL, /* domainSnapshotListNames */ + NULL, /* domainSnapshotLookupByName */ + NULL, /* domainHasCurrentSnapshot */ + NULL, /* domainSnapshotCurrent */ + NULL, /* domainRevertToSnapshot */ + NULL, /* domainSnapshotDelete */ + NULL, /* qemuDomainMonitorCommand */ + NULL, /* domainSetMemoryParameters */ + NULL, /* domainGetMemoryParameters */ + NULL, /* domainOpenConsole */ +}; + +static virStateDriver libxlStateDriver = { + .name = "LIBXL", + .initialize = libxlStartup, + .cleanup = libxlShutdown, + .reload = libxlReload, + .active = libxlActive, +}; + + +int +libxlRegister(void) +{ + if (virRegisterDriver(&libxlDriver) < 0) + return -1; + if (virRegisterStateDriver(&libxlStateDriver) < 0) + return -1; + + return 0; +} diff --git a/src/libxl/libxl_driver.h b/src/libxl/libxl_driver.h new file mode 100644 index 0000000..e047552 --- /dev/null +++ b/src/libxl/libxl_driver.h @@ -0,0 +1,27 @@ +/*---------------------------------------------------------------------------*/ +/* Copyright (c) 2011 SUSE LINUX Products GmbH, Nuernberg, Germany. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +/*---------------------------------------------------------------------------*/ + +#ifndef LIBXL_DRIVER_H +# define LIBXL_DRIVER_H + +# include <config.h> + +int libxlRegister(void); + +#endif /* LIBXL_DRIVER_H */ diff --git a/src/util/virterror.c b/src/util/virterror.c index aaa3720..3e1c495 100644 --- a/src/util/virterror.c +++ b/src/util/virterror.c @@ -89,6 +89,9 @@ static const char *virErrorDomainName(virErrorDomain domain) { case VIR_FROM_XENAPI: dom = "XenAPI "; break; + case VIR_FROM_LIBXL: + dom = "libxenlight "; + break; case VIR_FROM_XML: dom = "XML "; break; -- 1.7.3.1

3 3

[libvirt] [PATCH] util: Forbid calling hash APIs from iterator callback
by Jiri Denemark 10 Mar '11

10 Mar '11

Calling most hash APIs is not safe from inside of an iterator callback. Exceptions are APIs that do not modify the hash table and removing current hash entry from virHashFroEach callback. This patch make all APIs which are not safe fail instead of just relying on the callback being nice not calling any unsafe APIs. --- src/util/hash.c | 39 +++++++++++++++++++++++++++++++-------- 1 files changed, 31 insertions(+), 8 deletions(-) diff --git a/src/util/hash.c b/src/util/hash.c index 2a9a9cf..1a300f6 100644 --- a/src/util/hash.c +++ b/src/util/hash.c @@ -54,6 +54,10 @@ struct _virHashTable { struct _virHashEntry *table; int size; int nbElems; + /* True iff we are iterating over hash entries. */ + bool iterating; + /* Pointer to the current entry during iteration. */ + virHashEntryPtr current; virHashDataFree dataFree; virHashKeyCode keyCode; virHashKeyEqual keyEqual; @@ -313,7 +317,7 @@ virHashAddOrUpdateEntry(virHashTablePtr table, const void *name, char *new_name; bool found; - if ((table == NULL) || (name == NULL)) + if ((table == NULL) || (name == NULL) || table->iterating) return (-1); /* @@ -513,6 +517,8 @@ virHashRemoveEntry(virHashTablePtr table, const void *name) for (entry = &(table->table[key]); entry != NULL; entry = entry->next) { if (table->keyEqual(entry->name, name)) { + if (table->iterating && table->current != entry) + return -1; if (table->dataFree && (entry->payload != NULL)) table->dataFree(entry->payload, entry->name); entry->payload = NULL; @@ -548,28 +554,35 @@ virHashRemoveEntry(virHashTablePtr table, const void *name) * @data: opaque data to pass to the iterator * * Iterates over every element in the hash table, invoking the - * 'iter' callback. The callback is allowed to remove the element using - * virHashRemoveEntry but calling other virHash* functions is prohibited. + * 'iter' callback. The callback is allowed to remove the current element + * using virHashRemoveEntry but calling other virHash* functions is prohibited. * * Returns number of items iterated over upon completion, -1 on failure */ -int virHashForEach(virHashTablePtr table, virHashIterator iter, void *data) { +int virHashForEach(virHashTablePtr table, virHashIterator iter, void *data) +{ int i, count = 0; - if (table == NULL || iter == NULL) + if (table == NULL || iter == NULL || table->iterating) return (-1); + table->iterating = true; + table->current = NULL; for (i = 0 ; i < table->size ; i++) { virHashEntryPtr entry = table->table + i; while (entry) { virHashEntryPtr next = entry->next; if (entry->valid) { + table->current = entry; iter(entry->payload, entry->name, data); + table->current = NULL; count++; } entry = next; } } + table->iterating = false; + return (count); } @@ -590,9 +603,11 @@ int virHashForEach(virHashTablePtr table, virHashIterator iter, void *data) { int virHashRemoveSet(virHashTablePtr table, virHashSearcher iter, const void *data) { int i, count = 0; - if (table == NULL || iter == NULL) + if (table == NULL || iter == NULL || table->iterating) return (-1); + table->iterating = true; + table->current = NULL; for (i = 0 ; i < table->size ; i++) { virHashEntryPtr prev = NULL; virHashEntryPtr entry = &(table->table[i]); @@ -629,6 +644,8 @@ int virHashRemoveSet(virHashTablePtr table, virHashSearcher iter, const void *da } } } + table->iterating = false; + return (count); } @@ -646,18 +663,24 @@ int virHashRemoveSet(virHashTablePtr table, virHashSearcher iter, const void *da void *virHashSearch(virHashTablePtr table, virHashSearcher iter, const void *data) { int i; - if (table == NULL || iter == NULL) + if (table == NULL || iter == NULL || table->iterating) return (NULL); + table->iterating = true; + table->current = NULL; for (i = 0 ; i < table->size ; i++) { virHashEntryPtr entry = table->table + i; while (entry) { if (entry->valid) { - if (iter(entry->payload, entry->name, data)) + if (iter(entry->payload, entry->name, data)) { + table->iterating = false; return entry->payload; + } } entry = entry->next; } } + table->iterating = false; + return (NULL); } -- 1.7.4.1

3 2

[libvirt] [PATCH] storage: Update qemu-img flag checking
by Osier Yang 10 Mar '11

10 Mar '11

For newer qemu-img, the help string for "backing file format" is "[-F backing_fmt]". Fix the wrong logic error by commit e997c268. * src/storage/storage_backend.c --- src/storage/storage_backend.c | 7 ++++--- 1 files changed, 4 insertions(+), 3 deletions(-) diff --git a/src/storage/storage_backend.c b/src/storage/storage_backend.c index 0751fde..6d8e8b0 100644 --- a/src/storage/storage_backend.c +++ b/src/storage/storage_backend.c @@ -595,7 +595,8 @@ static int virStorageBackendQEMUImgBackingFormat(const char *qemuimg) start = strstr(help, " create "); end = strstr(start, "\n"); - if ((tmp = strstr(start, "-F fmt")) && tmp < end) + if (((tmp = strstr(start, "-F fmt")) && tmp < end) || + ((tmp = strstr(start, "-F backing_fmt")) && tmp < end)) ret = QEMU_IMG_BACKING_FORMAT_FLAG; else if ((tmp = strstr(start, "[-o options]")) && tmp < end) ret = QEMU_IMG_BACKING_FORMAT_OPTIONS; @@ -757,7 +758,7 @@ virStorageBackendCreateQemuImg(virConnectPtr conn, }; if (vol->target.encryption != NULL) { - if (imgformat == QEMU_IMG_BACKING_FORMAT_FLAG) { + if (imgformat == QEMU_IMG_BACKING_FORMAT_OPTIONS) { imgargv[8] = "-o"; imgargv[9] = "encryption=on"; } else { @@ -837,7 +838,7 @@ virStorageBackendCreateQemuImg(virConnectPtr conn, }; if (vol->target.encryption != NULL) { - if (imgformat == QEMU_IMG_BACKING_FORMAT_FLAG) { + if (imgformat == QEMU_IMG_BACKING_FORMAT_OPTIONS) { imgargv[6] = "-o"; imgargv[7] = "encryption=on"; } else { -- 1.7.4

2 2

[libvirt] [PATCH v2] qemu: Replace deprecated option of qemu-img
by Osier Yang 10 Mar '11

10 Mar '11

qemu-img silently disable "-e", so we can't use it for volume encryption anymore, change it into "-o encryption=on" if qemu supports "-o" option. --- src/storage/storage_backend.c | 47 +++++++++++++++++++++++++++++++++------- 1 files changed, 38 insertions(+), 9 deletions(-) diff --git a/src/storage/storage_backend.c b/src/storage/storage_backend.c index 2eede74..ec122a9 100644 --- a/src/storage/storage_backend.c +++ b/src/storage/storage_backend.c @@ -637,6 +637,7 @@ virStorageBackendCreateQemuImg(virConnectPtr conn, int ret = -1; char *size = NULL; char *create_tool; + int imgformat = -1; const char *type = virStorageFileFormatTypeToString(vol->target.format); const char *backingType = vol->backingStore.path ? @@ -741,6 +742,10 @@ virStorageBackendCreateQemuImg(virConnectPtr conn, return -1; } + imgformat = virStorageBackendQEMUImgBackingFormat(create_tool); + if (imgformat < 0) + goto cleanup; + if (inputvol) { const char *imgargv[] = { create_tool, @@ -750,8 +755,19 @@ virStorageBackendCreateQemuImg(virConnectPtr conn, inputPath, vol->target.path, NULL, + NULL, + NULL }; + if (vol->target.encryption != NULL) { + if (imgformat == QEMU_IMG_BACKING_FORMAT_FLAG) { + imgargv[8] = "-o"; + imgargv[9] = "encryption=on"; + } else { + imgargv[8] = "-e"; + } + } + ret = virStorageBackendCreateExecCommand(pool, vol, imgargv); } else if (vol->backingStore.path) { const char *imgargv[] = { @@ -766,11 +782,8 @@ virStorageBackendCreateQemuImg(virConnectPtr conn, NULL, NULL }; - int imgformat = virStorageBackendQEMUImgBackingFormat(create_tool); - char *optflag = NULL; - if (imgformat < 0) - goto cleanup; + char *optflag = NULL; switch (imgformat) { case QEMU_IMG_BACKING_FORMAT_FLAG: imgargv[6] = "-F"; @@ -786,13 +799,21 @@ virStorageBackendCreateQemuImg(virConnectPtr conn, virReportOOMError(); goto cleanup; } + + if (vol->target.encryption != NULL) { + char *tmp = NULL; + if (virAsprintf(&tmp, "%s,%s", optflag, "encryption=on") < 0) { + virReportOOMError(); + goto cleanup; + } + VIR_FREE(optflag); + optflag = tmp; + } + imgargv[6] = "-o"; imgargv[7] = optflag; imgargv[8] = vol->target.path; imgargv[9] = size; - if (vol->target.encryption != NULL) - imgargv[10] = "-e"; - break; default: VIR_INFO("Unable to set backing store format for %s with %s", @@ -814,10 +835,18 @@ virStorageBackendCreateQemuImg(virConnectPtr conn, vol->target.path, size, NULL, + NULL, NULL }; - if (vol->target.encryption != NULL) - imgargv[6] = "-e"; + + if (vol->target.encryption != NULL) { + if (imgformat == QEMU_IMG_BACKING_FORMAT_FLAG) { + imgargv[6] = "-o"; + imgargv[7] = "encryption=on"; + } else { + imgargv[6] = "-e"; + } + } ret = virStorageBackendCreateExecCommand(pool, vol, imgargv); } -- 1.7.4

2 2

[libvirt] [PATCHv2 0/8] another round of audit improvements
by Eric Blake 09 Mar '11

09 Mar '11

This supercedes the unreviewed v1: https://www.redhat.com/archives/libvir-list/2011-March/msg00257.html The more I kept working on this, the more things I found that needed fixing. As it is, it's too late for me tonight, so patch 8 is currently untested, and patch 9/8 is needed to audit the hotplug devices used in 'virsh attach-interface'. But earlier patches are in good shape, so I want to start the review. Perhaps this series should be re-arranged a bit; let me know if you want the final version to see patches in any different order (although due to some of my renames, it will take me longer to do rebasing that shuffles patch order). Eric Blake (8): audit: tweak audit messages to match conventions audit: split cgroup audit types to allow more information audit: also audit cgroup controller path audit: audit use of /dev/vhost-net audit: rename remaining qemu audit functions cgroup: allow fine-tuning of device ACL permissions audit: also audit cgroup ACL permissions qemu: support vhost in attach-interface src/libvirt_private.syms | 1 + src/lxc/lxc_controller.c | 9 +- src/qemu/qemu_audit.c | 263 ++++++++++++++++++++++++++++++++++----------- src/qemu/qemu_audit.h | 83 +++++++++------ src/qemu/qemu_cgroup.c | 57 +++++----- src/qemu/qemu_command.c | 10 +- src/qemu/qemu_command.h | 5 + src/qemu/qemu_driver.c | 44 ++++---- src/qemu/qemu_hotplug.c | 94 ++++++++++++----- src/qemu/qemu_migration.c | 14 ++-- src/qemu/qemu_process.c | 6 +- src/util/cgroup.c | 63 ++++++++---- src/util/cgroup.h | 31 +++++- 13 files changed, 466 insertions(+), 214 deletions(-) -- 1.7.4

2 21

[libvirt] [PATCH] Access qemu backing_file with relative pool path
by Jesse Cook 09 Mar '11

09 Mar '11

This patch enables the relative backing file path support provided by qemu-img create. If the storage pool is not found with the specified path, check if the file exists relative to the pool where the new image will be created by prepending the storage pool path. --- src/storage/storage_backend.c | 32 ++++++++++++++++++++++++++++---- 1 files changed, 28 insertions(+), 4 deletions(-) diff --git a/src/storage/storage_backend.c b/src/storage/storage_backend.c index 2eede74..bb49f22 100644 --- a/src/storage/storage_backend.c +++ b/src/storage/storage_backend.c @@ -687,10 +687,34 @@ virStorageBackendCreateQemuImg(virConnectPtr conn, return -1; } if (access(vol->backingStore.path, R_OK) != 0) { - virReportSystemError(errno, - _("inaccessible backing store volume %s"), - vol->backingStore.path); - return -1; + /* If the backing store image is not found with the specified path, + * check for the file relative to the pool path. */ + int accessRetCode = -1; + + char *absolutePath = NULL; + + virBuffer absPathBuf = VIR_BUFFER_INITIALIZER; + + virBufferVSprintf(&absPathBuf, + "%s/%s", + pool->def->target.path, + vol->backingStore.path); + + if (virBufferError(&absPathBuf)) { + virBufferFreeAndReset(&absPathBuf); + virReportOOMError(); + return -1; + } + + absolutePath = virBufferContentAndReset(&absPathBuf); + accessRetCode = access(absolutePath, R_OK); + VIR_FREE(absolutePath); + if (accessRetCode != 0) { + virReportSystemError(errno, + _("inaccessible backing store volume %s"), + vol->backingStore.path); + return -1; + } } } -- 1.7.4.1

4 5

[libvirt] [PATCH] Don't overwrite virRun error messages
by Cole Robinson 09 Mar '11

09 Mar '11

virRun gives pretty useful error output, let's not overwrite it unless there is a good reason. Some places were providing more information about what the commands were _attempting_ to do, however that's usually less useful from a debugging POV than what actually happened. --- src/lxc/veth.c | 45 +++------------------------------ src/openvz/openvz_driver.c | 20 -------------- src/qemu/qemu_driver.c | 4 --- src/storage/storage_backend.c | 3 -- src/storage/storage_backend_logical.c | 3 -- src/vmware/vmware_driver.c | 2 - 6 files changed, 4 insertions(+), 73 deletions(-) diff --git a/src/lxc/veth.c b/src/lxc/veth.c index 65ff5d8..0fa76cf 100644 --- a/src/lxc/veth.c +++ b/src/lxc/veth.c @@ -94,7 +94,6 @@ int vethCreate(char** veth1, char** veth2) const char *argv[] = { "ip", "link", "add", NULL, "type", "veth", "peer", "name", NULL, NULL }; - int cmdResult = 0; int vethDev = 0; bool veth1_alloc = false; @@ -122,13 +121,7 @@ int vethCreate(char** veth1, char** veth2) argv[8] = *veth2; VIR_DEBUG("veth1: %s veth2: %s", *veth1, *veth2); - rc = virRun(argv, &cmdResult); - - if (rc != 0 || - (WIFEXITED(cmdResult) && WEXITSTATUS(cmdResult) != 0)) { - vethError(VIR_ERR_INTERNAL_ERROR, - _("Failed to create veth device pair '%s', '%s': %d"), - *veth1, *veth2, WEXITSTATUS(cmdResult)); + if (virRun(argv, NULL) < 0) { if (veth1_alloc) VIR_FREE(*veth1); VIR_FREE(*veth2); @@ -233,7 +226,6 @@ int moveInterfaceToNetNs(const char* iface, int pidInNs) const char *argv[] = { "ip", "link", "set", iface, "netns", NULL, NULL }; - int cmdResult = 0; if (virAsprintf(&pid, "%d", pidInNs) == -1) { virReportOOMError(); @@ -241,14 +233,7 @@ int moveInterfaceToNetNs(const char* iface, int pidInNs) } argv[5] = pid; - rc = virRun(argv, &cmdResult); - if (rc != 0 || - (WIFEXITED(cmdResult) && WEXITSTATUS(cmdResult) != 0)) { - vethError(VIR_ERR_INTERNAL_ERROR, - _("Failed to move '%s' into NS(pid=%d) (%d)"), - iface, pidInNs, WEXITSTATUS(cmdResult)); - rc = -1; - } + rc = virRun(argv, NULL); VIR_FREE(pid); return rc; @@ -267,22 +252,11 @@ int moveInterfaceToNetNs(const char* iface, int pidInNs) */ int setMacAddr(const char* iface, const char* macaddr) { - int rc; const char *argv[] = { "ip", "link", "set", iface, "address", macaddr, NULL }; - int cmdResult = 0; - rc = virRun(argv, &cmdResult); - if (rc != 0 || - (WIFEXITED(cmdResult) && WEXITSTATUS(cmdResult) != 0)) { - vethError(VIR_ERR_INTERNAL_ERROR, - _("Failed to set '%s' to '%s' (%d)"), - macaddr, iface, WEXITSTATUS(cmdResult)); - rc = -1; - } - - return rc; + return virRun(argv, NULL); } /** @@ -298,20 +272,9 @@ int setMacAddr(const char* iface, const char* macaddr) */ int setInterfaceName(const char* iface, const char* new) { - int rc; const char *argv[] = { "ip", "link", "set", iface, "name", new, NULL }; - int cmdResult = 0; - rc = virRun(argv, &cmdResult); - if (rc != 0 || - (WIFEXITED(cmdResult) && WEXITSTATUS(cmdResult) != 0)) { - vethError(VIR_ERR_INTERNAL_ERROR, - _("Failed to set '%s' to '%s' (%d)"), - new, iface, WEXITSTATUS(cmdResult)); - rc = -1; - } - - return rc; + return virRun(argv, NULL); } diff --git a/src/openvz/openvz_driver.c b/src/openvz/openvz_driver.c index 00d378a..9ee6de5 100644 --- a/src/openvz/openvz_driver.c +++ b/src/openvz/openvz_driver.c @@ -216,8 +216,6 @@ static int openvzSetInitialConfig(virDomainDefPtr vmdef) } if (virRun(prog, NULL) < 0) { - openvzError(VIR_ERR_INTERNAL_ERROR, - _("Could not exec %s"), VZCTL); goto cleanup; } } @@ -495,8 +493,6 @@ static int openvzDomainSuspend(virDomainPtr dom) { if (vm->state != VIR_DOMAIN_PAUSED) { openvzSetProgramSentinal(prog, vm->def->name); if (virRun(prog, NULL) < 0) { - openvzError(VIR_ERR_OPERATION_FAILED, "%s", - _("Suspend operation failed")); goto cleanup; } vm->state = VIR_DOMAIN_PAUSED; @@ -535,8 +531,6 @@ static int openvzDomainResume(virDomainPtr dom) { if (vm->state == VIR_DOMAIN_PAUSED) { openvzSetProgramSentinal(prog, vm->def->name); if (virRun(prog, NULL) < 0) { - openvzError(VIR_ERR_OPERATION_FAILED, "%s", - _("Resume operation failed")); goto cleanup; } vm->state = VIR_DOMAIN_RUNNING; @@ -775,8 +769,6 @@ openvzDomainSetNetwork(virConnectPtr conn, const char *vpsid, if (prog[0] != NULL) { ADD_ARG_LIT("--save"); if (virRun(prog, NULL) < 0) { - openvzError(VIR_ERR_INTERNAL_ERROR, - _("Could not exec %s"), VZCTL); rc = -1; goto exit; } @@ -982,8 +974,6 @@ openvzDomainCreateXML(virConnectPtr conn, const char *xml, openvzSetProgramSentinal(progstart, vm->def->name); if (virRun(progstart, NULL) < 0) { - openvzError(VIR_ERR_INTERNAL_ERROR, - _("Could not exec %s"), VZCTL); goto cleanup; } @@ -1039,8 +1029,6 @@ openvzDomainCreateWithFlags(virDomainPtr dom, unsigned int flags) openvzSetProgramSentinal(prog, vm->def->name); if (virRun(prog, NULL) < 0) { - openvzError(VIR_ERR_INTERNAL_ERROR, - _("Could not exec %s"), VZCTL); goto cleanup; } @@ -1086,8 +1074,6 @@ openvzDomainUndefine(virDomainPtr dom) openvzSetProgramSentinal(prog, vm->def->name); if (virRun(prog, NULL) < 0) { - openvzError(VIR_ERR_INTERNAL_ERROR, - _("Could not exec %s"), VZCTL); goto cleanup; } @@ -1124,8 +1110,6 @@ openvzDomainSetAutostart(virDomainPtr dom, int autostart) openvzSetProgramSentinal(prog, vm->def->name); if (virRun(prog, NULL) < 0) { - openvzError(VIR_ERR_INTERNAL_ERROR, - _("Could not exec %s"), VZCTL); goto cleanup; } ret = 0; @@ -1216,8 +1200,6 @@ static int openvzDomainSetVcpusInternal(virDomainObjPtr vm, openvzSetProgramSentinal(prog, vm->def->name); if (virRun(prog, NULL) < 0) { - openvzError(VIR_ERR_INTERNAL_ERROR, - _("Could not exec %s"), VZCTL); return -1; } @@ -1551,8 +1533,6 @@ openvzDomainSetMemoryInternal(virDomainObjPtr vm, openvzSetProgramSentinal(prog, vm->def->name); if (virRun(prog, NULL) < 0) { - openvzError(VIR_ERR_INTERNAL_ERROR, - _("Could not exec %s"), VZCTL); goto cleanup; } diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 0f7cbad..7e58c20 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -6056,10 +6056,6 @@ static virDomainSnapshotPtr qemuDomainSnapshotCreateXML(virDomainPtr domain, qemuimgarg[4] = vm->def->disks[i]->src; if (virRun(qemuimgarg, NULL) < 0) { - virReportSystemError(errno, - _("Failed to run '%s' to create snapshot '%s' from disk '%s'"), - qemuimgarg[0], snap->def->name, - vm->def->disks[i]->src); goto cleanup; } } diff --git a/src/storage/storage_backend.c b/src/storage/storage_backend.c index 2eede74..dffc73f 100644 --- a/src/storage/storage_backend.c +++ b/src/storage/storage_backend.c @@ -534,9 +534,6 @@ static int virStorageBackendCreateExecCommand(virStoragePoolObjPtr pool, } if (!filecreated) { if (virRun(cmdargv, NULL) < 0) { - virReportSystemError(errno, - _("Cannot run %s to create %s"), - cmdargv[0], vol->target.path); return -1; } if (stat(vol->target.path, &st) < 0) { diff --git a/src/storage/storage_backend_logical.c b/src/storage/storage_backend_logical.c index ead35cb..f759abd 100644 --- a/src/storage/storage_backend_logical.c +++ b/src/storage/storage_backend_logical.c @@ -558,9 +558,6 @@ virStorageBackendLogicalDeletePool(virConnectPtr conn ATTRIBUTE_UNUSED, pvargv[1] = pool->def->source.devices[i].path; if (virRun(pvargv, NULL) < 0) { error = -1; - virReportSystemError(errno, - _("cannot remove PV device '%s'"), - pool->def->source.devices[i].path); break; } } diff --git a/src/vmware/vmware_driver.c b/src/vmware/vmware_driver.c index 22b29d1..2b07b13 100644 --- a/src/vmware/vmware_driver.c +++ b/src/vmware/vmware_driver.c @@ -189,7 +189,6 @@ vmwareStopVM(struct vmware_driver *driver, virDomainObjPtr vm) vmwareSetSentinal(cmd, ((vmwareDomainPtr) vm->privateData)->vmxPath); if (virRun(cmd, NULL) < 0) { - vmwareError(VIR_ERR_INTERNAL_ERROR, _("Could not exec %s"), VMRUN); return -1; } @@ -222,7 +221,6 @@ vmwareStartVM(struct vmware_driver *driver, virDomainObjPtr vm) vmwareSetSentinal(cmd, NULL); if (virRun(cmd, NULL) < 0) { - vmwareError(VIR_ERR_INTERNAL_ERROR, _("Could not exec %s"), VMRUN); return -1; } -- 1.7.4

2 2

[libvirt] [PATCH] docs: silence warnings about generated API docs
by Eric Blake 09 Mar '11

09 Mar '11

I noticed these while testing 'make dist'. Parsing ./../src/util/event.c Function comment for virEventRegisterDefaultImpl lacks description of return value Function comment for virEventRunDefaultImpl lacks description of return value Parsing ./../src/util/virterror.c Missing comment for function virSetErrorLogPriorityFunc * src/util/event.c (virEventRegisterDefaultImpl) (virEventRunDefaultImpl): Document return types. * src/util/virterror.c (virSetErrorLogPriorityFunc): Provide docs. --- Enough material that I thought I'd wait for an ack. src/util/event.c | 6 +++++- src/util/virterror.c | 8 +++++++- 2 files changed, 12 insertions(+), 2 deletions(-) diff --git a/src/util/event.c b/src/util/event.c index 0d88b55..bc0129c 100644 --- a/src/util/event.c +++ b/src/util/event.c @@ -1,8 +1,8 @@ /* * event.c: event loop for monitoring file handles * + * Copyright (C) 2007, 2011 Red Hat, Inc. * Copyright (C) 2007 Daniel P. Berrange - * Copyright (C) 2007 Red Hat, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -140,6 +140,8 @@ void virEventRegisterImpl(virEventAddHandleFunc addHandle, * Once registered, the application can invoke * virEventRunDefaultImpl in a loop to process * events + * + * Returns 0 on success, -1 on failure. */ int virEventRegisterDefaultImpl(void) { @@ -178,6 +180,8 @@ int virEventRegisterDefaultImpl(void) * if (virEventRunDefaultImpl() < 0) * ...print error... * } + * + * Returns 0 on success, -1 on failure. */ int virEventRunDefaultImpl(void) { diff --git a/src/util/virterror.c b/src/util/virterror.c index aaa3720..f136054 100644 --- a/src/util/virterror.c +++ b/src/util/virterror.c @@ -1,7 +1,7 @@ /* * virterror.c: implements error handling and reporting code for libvirt * - * Copy: Copyright (C) 2006, 2008-2010 Red Hat, Inc. + * Copy: Copyright (C) 2006, 2008-2011 Red Hat, Inc. * * See COPYING.LIB for the License of this software * @@ -1344,6 +1344,12 @@ void virReportOOMErrorFull(int domcode, virerr, NULL, NULL, -1, -1, virerr, NULL); } +/** + * virSetErrorLogPriorityFunc: + * @func: function to install + * + * Install a function used to filter error logging based on error priority. + */ void virSetErrorLogPriorityFunc(virErrorLogPriorityFunc func) { virErrorLogPriorityFilter = func; -- 1.7.4

2 2

[libvirt] [PATCH] Add XML config switch to enable/disable vhost-net support
by Laine Stump 09 Mar '11

09 Mar '11

This patch is in response to https://bugzilla.redhat.com/show_bug.cgi?id=643050 The existing libvirt support for the vhost-net backend to the virtio network driver happens automatically - if the vhost-net device is available, it is always enabled, otherwise the standard userland virtio backend is used. This patch makes it possible to force whether or not vhost-net is used with a bit of XML. Adding a <driver> element to the interface XML, eg: <interface type="network"> <model type="virtio"/> <driver name="vhost"/> will force use of vhost-net (if it's not available, the domain will fail to start). if driver name="qemu", vhost-net will not be used even if it is available. If there is no <driver name='xxx'/> in the config, libvirt will revert to the pre-existing automatic behavior - use vhost-net if it's available, and userland backend if vhost-net isn't available. --- Note that I don't really like the "name='vhost|qemu'" nomenclature, but am including it here just to get the patches on the list. I could live with it this way, or with any of the following (anyone have a strong opinion?) (note that in all cases, nothing specified means "try to use vhost, but fallback to userland if necessary") vhost='on|off' vhost='required|disabled' mode='vhost|qemu' mode='kernel|user' backend='kernel|user' (So far the strongest opinion has been for the current "name='vhost|qemu'") Oh, and also - sorry Eric, but I didn't have the brain cells left tonight to add this new bit to the documentation, and I really want to get the patch up/in now, so that will have to wait for a followup next week :-) docs/schemas/domain.rng | 13 ++++++++ src/conf/domain_conf.c | 27 +++++++++++++++++- src/conf/domain_conf.h | 10 ++++++ src/qemu/qemu_command.c | 71 +++++++++++++++++++++++++++++++++++++++-------- src/qemu/qemu_command.h | 3 -- 5 files changed, 108 insertions(+), 16 deletions(-) diff --git a/docs/schemas/domain.rng b/docs/schemas/domain.rng index a524e4b..6d0654d 100644 --- a/docs/schemas/domain.rng +++ b/docs/schemas/domain.rng @@ -1005,6 +1005,19 @@ </element> </optional> <optional> + <element name="driver"> + <optional> + <attribute name="name"> + <choice> + <value>qemu</value> + <value>vhost</value> + </choice> + </attribute> + </optional> + <empty/> + </element> + </optional> + <optional> <ref name="address"/> </optional> <optional> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index b4df38c..04ed502 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -184,6 +184,10 @@ VIR_ENUM_IMPL(virDomainNet, VIR_DOMAIN_NET_TYPE_LAST, "internal", "direct") +VIR_ENUM_IMPL(virDomainNetBackend, VIR_DOMAIN_NET_BACKEND_TYPE_LAST, + "qemu", + "vhost") + VIR_ENUM_IMPL(virDomainChrChannelTarget, VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_LAST, "guestfwd", @@ -2289,6 +2293,7 @@ virDomainNetDefParseXML(virCapsPtr caps, char *address = NULL; char *port = NULL; char *model = NULL; + char *backend = NULL; char *filter = NULL; char *internal = NULL; char *devaddr = NULL; @@ -2371,6 +2376,8 @@ virDomainNetDefParseXML(virCapsPtr caps, script = virXMLPropString(cur, "path"); } else if (xmlStrEqual (cur->name, BAD_CAST "model")) { model = virXMLPropString(cur, "type"); + } else if (xmlStrEqual (cur->name, BAD_CAST "driver")) { + backend = virXMLPropString(cur, "name"); } else if (xmlStrEqual (cur->name, BAD_CAST "filterref")) { filter = virXMLPropString(cur, "filter"); VIR_FREE(filterparams); @@ -2558,6 +2565,18 @@ virDomainNetDefParseXML(virCapsPtr caps, model = NULL; } + if ((backend != NULL) && + (def->model && STREQ(def->model, "virtio"))) { + int b; + if ((b = virDomainNetBackendTypeFromString(backend)) < 0) { + virDomainReportError(VIR_ERR_INTERNAL_ERROR, + _("Unkown interface <driver name='%s'> has been specified"), + backend); + goto error; + } + def->backend = b; + def->backend_specified = 1; + } if (filter != NULL) { switch (def->type) { case VIR_DOMAIN_NET_TYPE_ETHERNET: @@ -2584,6 +2603,7 @@ cleanup: VIR_FREE(script); VIR_FREE(bridge); VIR_FREE(model); + VIR_FREE(backend); VIR_FREE(filter); VIR_FREE(type); VIR_FREE(internal); @@ -6275,9 +6295,14 @@ virDomainNetDefFormat(virBufferPtr buf, if (def->ifname) virBufferEscapeString(buf, " <target dev='%s'/>\n", def->ifname); - if (def->model) + if (def->model) { virBufferEscapeString(buf, " <model type='%s'/>\n", def->model); + if (STREQ(def->model, "virtio") && def->backend_specified) { + virBufferVSprintf(buf, " <driver name='%s'/>\n", + virDomainNetBackendTypeToString(def->backend)); + } + } if (def->filter) { virBufferEscapeString(buf, " <filterref filter='%s'", def->filter); diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index a459a22..451ccad 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -292,6 +292,13 @@ enum virDomainNetType { VIR_DOMAIN_NET_TYPE_LAST, }; +/* the backend driver used for virtio interfaces */ +enum virDomainNetBackendType { + VIR_DOMAIN_NET_BACKEND_TYPE_QEMU, /* userland */ + VIR_DOMAIN_NET_BACKEND_TYPE_VHOST, /* kernel */ + + VIR_DOMAIN_NET_BACKEND_TYPE_LAST, +}; /* the mode type for macvtap devices */ enum virDomainNetdevMacvtapType { @@ -310,6 +317,8 @@ struct _virDomainNetDef { enum virDomainNetType type; unsigned char mac[VIR_MAC_BUFLEN]; char *model; + enum virDomainNetBackendType backend; + int backend_specified : 1; union { struct { char *dev; @@ -1264,6 +1273,7 @@ VIR_ENUM_DECL(virDomainControllerModel) VIR_ENUM_DECL(virDomainFS) VIR_ENUM_DECL(virDomainFSAccessMode) VIR_ENUM_DECL(virDomainNet) +VIR_ENUM_DECL(virDomainNetBackend) VIR_ENUM_DECL(virDomainChrDevice) VIR_ENUM_DECL(virDomainChrChannelTarget) VIR_ENUM_DECL(virDomainChrConsoleTarget) diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 86c5bb5..9eb54a1 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -302,24 +302,61 @@ cleanup: } -int +static int qemuOpenVhostNet(virDomainNetDefPtr net, - unsigned long long qemuCmdFlags) + unsigned long long qemuCmdFlags, + int *vhostfd) { - /* If qemu supports vhost-net mode (including the -netdev command - * option), the nic model is virtio, and we can open - * /dev/vhost_net, assume that vhost-net mode is available and - * return the fd to /dev/vhost_net. Otherwise, return -1. - */ + *vhostfd = -1; /* assume we won't use vhost */ + /* If the config says explicitly to not use vhost, return now */ + if (net->backend_specified && + (net->backend == VIR_DOMAIN_NET_BACKEND_TYPE_QEMU)) { + return 0; + } + + /* If qemu doesn't support vhost-net mode (including the -netdev command + * option), don't try to open the device. + */ if (!(qemuCmdFlags & QEMUD_CMD_FLAG_VNET_HOST && qemuCmdFlags & QEMUD_CMD_FLAG_NETDEV && - qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE && - net->model && STREQ(net->model, "virtio"))) - return -1; + qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE)) { + if (net->backend_specified && + (net->backend == VIR_DOMAIN_NET_BACKEND_TYPE_VHOST)) { + qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, + "%s", _("vhost-net is not supported with " + "this QEMU binary")); + return -1; + } + return 0; + } - return open("/dev/vhost-net", O_RDWR, 0); + /* If the nic model isn't virtio, don't try to open. */ + if (!(net->model && STREQ(net->model, "virtio"))) { + if (net->backend_specified && + (net->backend == VIR_DOMAIN_NET_BACKEND_TYPE_VHOST)) { + qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, + "%s", _("vhost-net is only supported for " + "virtio network interfaces")); + return -1; + } + return 0; + } + + *vhostfd = open("/dev/vhost-net", O_RDWR, 0); + + /* If the config says explicitly to use vhost and we couldn't open it, + * report an error. + */ + if ((*vhostfd < 0) && net->backend_specified && + (net->backend == VIR_DOMAIN_NET_BACKEND_TYPE_VHOST)) { + qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, + "%s", _("vhost-net was requested for an interface, " + "but is unavailable")); + return -1; + } + return 0; } @@ -3278,7 +3315,10 @@ qemuBuildCommandLine(virConnectPtr conn, net->type == VIR_DOMAIN_NET_TYPE_DIRECT) { /* Attempt to use vhost-net mode for these types of network device */ - int vhostfd = qemuOpenVhostNet(net, qemuCmdFlags); + int vhostfd; + + if (qemuOpenVhostNet(net, qemuCmdFlags, &vhostfd) < 0) + goto error; if (vhostfd >= 0) { virCommandTransferFD(cmd, vhostfd); @@ -4618,6 +4658,13 @@ qemuParseCommandLineNet(virCapsPtr caps, } else if (STREQ(keywords[i], "model")) { def->model = values[i]; values[i] = NULL; + } else if (STREQ(keywords[i], "vhost")) { + if ((values[i] == NULL) || STREQ(values[i], "on")) { + def->backend = VIR_DOMAIN_NET_BACKEND_TYPE_VHOST; + } else if (STREQ(keywords[i], "off")) { + def->backend = VIR_DOMAIN_NET_BACKEND_TYPE_QEMU; + } + def->backend_specified = 1; } } diff --git a/src/qemu/qemu_command.h b/src/qemu/qemu_command.h index 4c42a10..5439184 100644 --- a/src/qemu/qemu_command.h +++ b/src/qemu/qemu_command.h @@ -116,9 +116,6 @@ int qemuNetworkIfaceConnect(virConnectPtr conn, unsigned long long qemCmdFlags) ATTRIBUTE_NONNULL(1); -int qemuOpenVhostNet(virDomainNetDefPtr net, - unsigned long long qemuCmdFlags); - int qemuPhysIfaceConnect(virConnectPtr conn, struct qemud_driver *driver, virDomainNetDefPtr net, -- 1.7.3.4

4 8

[libvirt] [PATCH 2/2] Make sure the rundir is accessible by the user
by Guido Günther 09 Mar '11

09 Mar '11

otherwise the user might not have enough permissions to access the socket if roots umask is 077. http://bugs.debian.org/614210 --- daemon/libvirtd.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/daemon/libvirtd.c b/daemon/libvirtd.c index 610e7fd..a968e05 100644 --- a/daemon/libvirtd.c +++ b/daemon/libvirtd.c @@ -3156,7 +3156,9 @@ static int create_rundir (void) { const char *rundir = LOCALSTATEDIR "/run/libvirt"; int ret = 0; + mode_t old_umask; + old_umask = umask(022); if (mkdir (rundir, 0755)) { if (errno != EEXIST) { char ebuf[1024]; @@ -3165,6 +3167,7 @@ static int create_rundir (void) ret = VIR_DAEMON_ERR_RUNDIR; } } + umask(old_umask); return ret; } -- 1.7.4.1

2 3

[libvirt] [PATCH] storage: replace the deprecated option of qemu-img.
by Osier Yang 09 Mar '11

09 Mar '11

qemu-img silently disable "-e", so we can't use it for volume encryption anymore, change it into "-o encryption=on". I'm afraid of it will inroduce compatibility problem for older qemu without "-o" option, but "-o" option is already used in the codes, seems it's fine. * src/storage/storage_backend.c --- src/storage/storage_backend.c | 17 +++++++++++------ 1 files changed, 11 insertions(+), 6 deletions(-) diff --git a/src/storage/storage_backend.c b/src/storage/storage_backend.c index 2eede74..c381444 100644 --- a/src/storage/storage_backend.c +++ b/src/storage/storage_backend.c @@ -778,7 +778,7 @@ virStorageBackendCreateQemuImg(virConnectPtr conn, imgargv[8] = vol->target.path; imgargv[9] = size; if (vol->target.encryption != NULL) - imgargv[10] = "-e"; + imgargv[10] = "-o encryption=on"; break; case QEMU_IMG_BACKING_FORMAT_OPTIONS: @@ -786,13 +786,18 @@ virStorageBackendCreateQemuImg(virConnectPtr conn, virReportOOMError(); goto cleanup; } + + if (vol->target.encryption != NULL) { + if (virAsprintf(&optflag, ",encryption=on") < 0) { + virReportOOMError(); + goto cleanup; + } + } + imgargv[6] = "-o"; imgargv[7] = optflag; imgargv[8] = vol->target.path; imgargv[9] = size; - if (vol->target.encryption != NULL) - imgargv[10] = "-e"; - break; default: VIR_INFO("Unable to set backing store format for %s with %s", @@ -800,7 +805,7 @@ virStorageBackendCreateQemuImg(virConnectPtr conn, imgargv[6] = vol->target.path; imgargv[7] = size; if (vol->target.encryption != NULL) - imgargv[8] = "-e"; + imgargv[8] = "-o encryption=on"; } ret = virStorageBackendCreateExecCommand(pool, vol, imgargv); @@ -817,7 +822,7 @@ virStorageBackendCreateQemuImg(virConnectPtr conn, NULL }; if (vol->target.encryption != NULL) - imgargv[6] = "-e"; + imgargv[6] = "-o encryption=on"; ret = virStorageBackendCreateExecCommand(pool, vol, imgargv); } -- 1.7.4

3 4

[libvirt] [PATCH] docs: correct range of default NAT subnet
by Eric Blake 09 Mar '11

09 Mar '11

* docs/formatdomain.html.in: Fix typo. --- Pushing under the trivial rule. docs/formatdomain.html.in | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index 9b9ab29..8b6e5e4 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -1145,7 +1145,7 @@ network config with '<code>virsh net-dumpxml [networkname]</code>'. There is one virtual network called 'default' setup out of the box which does NAT'ing to the default route and has an IP range of - <code>192.168.22.0/255.255.255.0</code>. Each guest will have an + <code>192.168.122.0/255.255.255.0</code>. Each guest will have an associated tun device created with a name of vnetN, which can also be overridden with the <target> element (see <a href="#elementsNICSTargetOverride">overriding the target element</a>). -- 1.7.4

2 1

[libvirt] [PATCH 2/2] libvirtd: Remove indirect linking
by Guido Günther 09 Mar '11

09 Mar '11

as described at http://wiki.debian.org/ToolChain/DSOLinking https://fedoraproject.org/wiki/UnderstandingDSOLinkChange otherwise the build fails on current Debian unstable with: CCLD libvirtd /usr/bin/ld: ../src/.libs/libvirt_driver_lxc.a(libvirt_driver_lxc_la-lxc_container.o): undefined reference to symbol 'capng_apply' /usr/bin/ld: note: 'capng_apply' is defined in DSO //usr/lib/libcap-ng.so.0 so try adding it to the linker command line CCLD libvirtd /usr/bin/ld: ../src/.libs/libvirt_driver_storage.a(libvirt_driver_storage_la-storage_backend.o): undefined reference to symbol 'fgetfilecon' /usr/bin/ld: note: 'fgetfilecon' is defined in DSO //lib/libselinux.so.1 so try adding it to the linker command line //lib/libselinux.so.1: could not read symbols: Invalid operation O.k. to apply? Cheers, -- Guido --- daemon/Makefile.am | 10 +++++++++- 1 files changed, 9 insertions(+), 1 deletions(-) diff --git a/daemon/Makefile.am b/daemon/Makefile.am index 912440c..2083084 100644 --- a/daemon/Makefile.am +++ b/daemon/Makefile.am @@ -145,7 +145,15 @@ if WITH_NWFILTER endif endif -libvirtd_LDADD += ../src/libvirt.la +if WITH_SECDRIVER_SELINUX + libvirtd_LDADD += $(SELINUX_LIBS) +endif +if WITH_SECDRIVER_APPARMOR + libvirtd_LDADD += $(APPARMOR_LIBS) +endif + +libvirtd_LDADD += ../src/libvirt.la \ + $(CAPNG_LIBS) if HAVE_POLKIT if HAVE_POLKIT0 -- 1.7.4.1

2 4

[libvirt] [libvirt-snmp][PATCH] configure.ac: lower required minimal version of autoconf
by Michal Privoznik 09 Mar '11

09 Mar '11

so we can build even on rhel 5.6 where the original version is not yet. --- configure.ac | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/configure.ac b/configure.ac index 468fb07..dcab0ae 100644 --- a/configure.ac +++ b/configure.ac @@ -2,7 +2,7 @@ AC_INIT([libvirt-snmp],[0.0.1],[libvir-list@redhat.com],[],[http://libvirt.org]) AM_INIT_AUTOMAKE([-Wall -Werror]) AC_CONFIG_HEADERS([config.h]) -AC_PREREQ([2.66]) +AC_PREREQ([2.50]) AC_CHECK_FUNCS([memset]) AC_CHECK_FUNCS([strdup]) AC_CHECK_HEADERS([stdlib.h]) -- 1.7.4

3 2

[libvirt] (no subject)
by Guido Günther 09 Mar '11

09 Mar '11

>From 4a3765d97c3f5049aa294a4b7b629eabfd9cf04d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Guido=20G=C3=BCnther?= <agx(a)sigxcpu.org> Date: Mon, 7 Mar 2011 22:22:36 +0100 Subject: [PATCH 1/2] Move rundir creation into separate function --- daemon/libvirtd.c | 31 ++++++++++++++++++++----------- 1 files changed, 20 insertions(+), 11 deletions(-) diff --git a/daemon/libvirtd.c b/daemon/libvirtd.c index 452566c..610e7fd 100644 --- a/daemon/libvirtd.c +++ b/daemon/libvirtd.c @@ -3150,6 +3150,24 @@ enum { OPT_VERSION = 129 }; + +/* Ensure the rundir exists (on tmpfs on some systems) */ +static int create_rundir (void) +{ + const char *rundir = LOCALSTATEDIR "/run/libvirt"; + int ret = 0; + + if (mkdir (rundir, 0755)) { + if (errno != EEXIST) { + char ebuf[1024]; + VIR_ERROR(_("unable to create rundir %s: %s"), rundir, + virStrerror(errno, ebuf, sizeof(ebuf))); + ret = VIR_DAEMON_ERR_RUNDIR; + } + } + return ret; +} + #define MAX_LISTEN 5 int main(int argc, char **argv) { struct qemud_server *server = NULL; @@ -3276,17 +3294,8 @@ int main(int argc, char **argv) { /* Ensure the rundir exists (on tmpfs on some systems) */ if (geteuid() == 0) { - const char *rundir = LOCALSTATEDIR "/run/libvirt"; - - if (mkdir (rundir, 0755)) { - if (errno != EEXIST) { - char ebuf[1024]; - VIR_ERROR(_("unable to create rundir %s: %s"), rundir, - virStrerror(errno, ebuf, sizeof(ebuf))); - ret = VIR_DAEMON_ERR_RUNDIR; - goto error; - } - } + if (create_rundir ()) + goto error; } /* Beyond this point, nothing should rely on using -- 1.7.4.1

2 2

[libvirt] [PATCH] Fix a wrong error message threw to user.
by Hu Tao 09 Mar '11

09 Mar '11

--- src/qemu/qemu_driver.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 0f7cbad..f26b1ef 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -4209,8 +4209,8 @@ static int qemuDomainUpdateDeviceFlags(virDomainPtr dom, default: qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, - _("disk device type '%s' cannot be updated"), - virDomainDiskDeviceTypeToString(dev->data.disk->device)); + _("device type '%s' cannot be updated"), + virDomainDeviceTypeToString(dev->type)); break; } -- 1.7.3.1

2 1

[libvirt] [PATCH] security: ignore disk opening failure of DAC driver.
by Osier Yang 09 Mar '11

09 Mar '11

Which blocks the domain booting up if one of the disks can't be opened (e.g. doesn't exist). --- src/security/security_dac.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/src/security/security_dac.c b/src/security/security_dac.c index fba2d1d..8bb5bc9 100644 --- a/src/security/security_dac.c +++ b/src/security/security_dac.c @@ -182,7 +182,7 @@ virSecurityDACSetSecurityImageLabel(virSecurityManagerPtr mgr, return virDomainDiskDefForeachPath(disk, virSecurityManagerGetAllowDiskFormatProbing(mgr), - false, + true, virSecurityDACSetSecurityFileLabel, mgr); } -- 1.7.4

2 1

[libvirt] [PATCH] dynamic_ownership documentation
by Stephan Mueller 09 Mar '11

09 Mar '11

Hi, I would like to propose the following patch for the libvirtd.conf file to document sVirt and its usage. If you have suggestions to add better wording, please let me know. (If you reply with comments, could you please CC me as I am not on the list.) Ciao Stephan --- diff --git a/cc-config/cc/libvirtd.conf b/cc-config/cc/libvirtd.conf index 43e19d8..a9acc21 100644 --- a/cc-config/cc/libvirtd.conf +++ b/cc-config/cc/libvirtd.conf @@ -154,7 +154,52 @@ auth_unix_rw = "none" # mechanism as well, by using 'sasl' for this option #auth_tls = "none" - +################################################################# +# +# sVirt protection mechanisms +# +# The following options specify the separation of virtual machines +# based on SELinux categories. As virtual machines execute with the +# same user ID, an additional separation functionality is necessary +# to prevent different virtual machines from interfering with each other +# in case the simulation environment provided with QEMU is +# successfully broken by a rogue guest. +# +# The sVirt protection mechanism implements two modes of operation: +# dynamic assignment of SELinux categories +# static assignment of SELinux labels +# +# A dynamic assignment of categories implies that libvirt generates +# a unique SELinux category that the virtual machine and its resources +# are assigned to during the instantiation of the virtual machine. +# SELinux ensures that each virtual machine can only access resources +# labeled with the same category as the virtual machine itself. +# +# A static assignment of SELinux labels imply that the administrator +# manually configures the SELinux label of the virtual machine in +# /etc/libvirt/qemu/<VM-DESCRIPTOR> based on the following example: +# +# <seclabel model='selinux' type="static"> +# <label>system_u:system_r:qemu_t:s0:c210.c502</label> +# </seclabel> +# +# The <label> tag specifies a full SELinux label the virtual machine +# will be executed with. +# +# In addition to the setting of the SELinux label of the virtual +# machine, the administrator must manually set the SELinux label +# of all resources the virtual machine accesses appropriately. +# +# NOTE: The dynamic assignment of categories is only intended for +# systems with the targeted SELinux policy. Systems with the MLS +# SELinux policy MUST use the static assignment of labels. +# It is possible that static assignment is configured for +# systems with the targeted policy as well. +# +# dynamic_ownership: 0 == static assignment of SELinux labels +# 1 == dynamic assignment of SELinux labels +dynamic_ownership=1 +#

3 4

[libvirt] how to install 'devel' module from source files...
by john alexander sanabria ordonez 09 Mar '11

09 Mar '11

Hi, I'm wondering how, when libvirt is installed from sources, to also install the 'development' files? I installed libvirt-0.8.8 with no problems and 'virsh' works OK. However, when I try to install, for instance libvirt-ruby, it asks me for libvirt development files. What extra step is required? Thanks,

2 1

[libvirt] [PATCH 1/2] build: fix build on cygwin
by Eric Blake 09 Mar '11

09 Mar '11

On cygwin: CC libvirt_util_la-cgroup.lo util/cgroup.c: In function 'virCgroupKillRecursiveInternal': util/cgroup.c:1458: warning: implicit declaration of function 'virCgroupNew' [-Wimplicit-function-declaration] * src/util/cgroup.c (virCgroupKill): Don't build on platforms where virCgroupNew is unsupported. --- Pushing under the build-breaker rule. And this time, it really was a cygwin failure ;) src/util/cgroup.c | 6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-) diff --git a/src/util/cgroup.c b/src/util/cgroup.c index c5b8cdd..8551acd 100644 --- a/src/util/cgroup.c +++ b/src/util/cgroup.c @@ -1308,7 +1308,7 @@ int virCgroupGetFreezerState(virCgroupPtr group, char **state) } -#ifdef HAVE_KILL +#if defined HAVE_KILL && defined HAVE_MNTENT_H && defined HAVE_GETMNTENT_R static int virCgroupKillInternal(virCgroupPtr group, int signum, virHashTablePtr pids) { int rc; @@ -1523,7 +1523,7 @@ int virCgroupKillPainfully(virCgroupPtr group) return rc; } -#else /* HAVE_KILL */ +#else /* !(HAVE_KILL, HAVE_MNTENT_H, HAVE_GETMNTENT_R) */ int virCgroupKill(virCgroupPtr group ATTRIBUTE_UNUSED, int signum ATTRIBUTE_UNUSED) { @@ -1539,4 +1539,4 @@ int virCgroupKillPainfully(virCgroupPtr group ATTRIBUTE_UNUSED) { return -ENOSYS; } -#endif /* HAVE_KILL */ +#endif /* HAVE_KILL, HAVE_MNTENT_H, HAVE_GETMNTENT_R */ -- 1.7.4

1 1

[libvirt] [PATCH] build: fix building error when building without libvirtd
by Wen Congyang 09 Mar '11

09 Mar '11

When building libvirt without libvirtd, I receive the following errors: make[1]: Leaving directory `/home/wency/source/test/libvirt/src' (cd daemon && make top_distdir=../libvirt-0.8.8 distdir=../libvirt-0.8.8/daemon \ am__remove_distdir=: am__skip_length_check=: am__skip_mode_fix=: distdir) make[1]: Entering directory `/home/wency/source/test/libvirt/daemon' make[1]: *** No rule to make target `libvirtd.8.in', needed by `distdir'. Stop. make[1]: Leaving directory `/home/wency/source/test/libvirt/daemon' make: *** [distdir] Error 1 This bug was caused by commit 6db98a2d. Signed-off-by: Wen Congyang <wency(a)cn.fujitsu.com> --- daemon/Makefile.am | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/daemon/Makefile.am b/daemon/Makefile.am index 912440c..b4880a9 100644 --- a/daemon/Makefile.am +++ b/daemon/Makefile.am @@ -38,7 +38,6 @@ EXTRA_DIST = \ test_libvirtd.aug \ THREADING.txt \ libvirtd.pod.in \ - libvirtd.8.in \ libvirtd.stp \ $(AVAHI_SOURCES) \ $(DAEMON_SOURCES) @@ -47,6 +46,8 @@ BUILT_SOURCES = if WITH_LIBVIRTD +EXTRA_DIST += libvirtd.8.in + man8_MANS = libvirtd.8 sbin_PROGRAMS = libvirtd -- 1.7.1

2 3

[libvirt] [RFC PATCH] cgroup: allow fine-tuning of device ACL permissions
by Eric Blake 09 Mar '11

09 Mar '11

Adding audit points showed that we were granting too much privilege to qemu; it should not need any mknod rights to recreate any devices other than ptys. On the other hand, lxc should have all device privileges. The solution is adding a flag parameter. * src/util/cgroup.h (virCgroup*Device*): Adjust prototypes. * src/util/cgroup.c (virCgroupAllowDevice) (virCgroupAllowDeviceMajor, virCgroupAllowDevicePath) (virCgroupDenyDevice, virCgroupDenyDeviceMajor) (virCgroupDenyDevicePath): Add parameter. * src/qemu/qemu_cgroup.c: Update clients. * src/qemu/qemu_driver.c (qemudDomainSaveFlag): Likewise. * src/lxc/lxc_controller.c (lxcSetContainerResources): Likewise. --- https://bugzilla.redhat.com/show_bug.cgi?id=683163 was created based on my audit patches. RFC for two reasons: This patch won't apply unless you have my other pending qemu audit patches in place (I still need to post those, but ran out of time for now...) I need to do a followup patch to also restrict write access to a disk explicitly marked read-only from qemu's point of view. But I wanted to at least get this email posted to start feedback. src/lxc/lxc_controller.c | 9 +++++-- src/qemu/qemu_cgroup.c | 23 +++++++++++------- src/qemu/qemu_driver.c | 9 +++++-- src/util/cgroup.c | 55 +++++++++++++++++++++++++++++++++------------ src/util/cgroup.h | 26 ++++++++++++++++----- 5 files changed, 86 insertions(+), 36 deletions(-) diff --git a/src/lxc/lxc_controller.c b/src/lxc/lxc_controller.c index d2b113c..296b302 100644 --- a/src/lxc/lxc_controller.c +++ b/src/lxc/lxc_controller.c @@ -1,5 +1,6 @@ /* - * Copyright (C) 2010 Red Hat, Inc. Copyright IBM Corp. 2008 + * Copyright (C) 2010-2011 Red Hat, Inc. + * Copyright IBM Corp. 2008 * * lxc_controller.c: linux container process controller * @@ -168,7 +169,8 @@ static int lxcSetContainerResources(virDomainDefPtr def) rc = virCgroupAllowDevice(cgroup, dev->type, dev->major, - dev->minor); + dev->minor, + VIR_CGROUP_DEVICE_RWM); if (rc != 0) { virReportSystemError(-rc, _("Unable to allow device %c:%d:%d for domain %s"), @@ -177,7 +179,8 @@ static int lxcSetContainerResources(virDomainDefPtr def) } } - rc = virCgroupAllowDeviceMajor(cgroup, 'c', LXC_DEV_MAJ_PTY); + rc = virCgroupAllowDeviceMajor(cgroup, 'c', LXC_DEV_MAJ_PTY, + VIR_CGROUP_DEVICE_RWM); if (rc != 0) { virReportSystemError(-rc, _("Unable to allow PYT devices for domain %s"), diff --git a/src/qemu/qemu_cgroup.c b/src/qemu/qemu_cgroup.c index ebf9ad5..3c124fd 100644 --- a/src/qemu/qemu_cgroup.c +++ b/src/qemu/qemu_cgroup.c @@ -66,7 +66,8 @@ qemuSetupDiskPathAllow(virDomainDiskDefPtr disk ATTRIBUTE_UNUSED, VIR_DEBUG("Process path %s for disk", path); /* XXX RO vs RW */ - rc = virCgroupAllowDevicePath(data->cgroup, path); + rc = virCgroupAllowDevicePath(data->cgroup, path, + VIR_CGROUP_DEVICE_RW); qemuAuditCgroupPath(data->vm, data->cgroup, "allow", path, rc); if (rc < 0) { if (rc == -EACCES) { /* Get this for root squash NFS */ @@ -106,8 +107,8 @@ qemuTeardownDiskPathDeny(virDomainDiskDefPtr disk ATTRIBUTE_UNUSED, int rc; VIR_DEBUG("Process path %s for disk", path); - /* XXX RO vs RW */ - rc = virCgroupDenyDevicePath(data->cgroup, path); + rc = virCgroupDenyDevicePath(data->cgroup, path, + VIR_CGROUP_DEVICE_RWM); qemuAuditCgroupPath(data->vm, data->cgroup, "deny", path, rc); if (rc < 0) { if (rc == -EACCES) { /* Get this for root squash NFS */ @@ -150,7 +151,8 @@ qemuSetupChardevCgroup(virDomainDefPtr def, VIR_DEBUG("Process path '%s' for disk", dev->source.data.file.path); - rc = virCgroupAllowDevicePath(data->cgroup, dev->source.data.file.path); + rc = virCgroupAllowDevicePath(data->cgroup, dev->source.data.file.path, + VIR_CGROUP_DEVICE_RW); qemuAuditCgroupPath(data->vm, data->cgroup, "allow", dev->source.data.file.path, rc); if (rc < 0) { @@ -172,7 +174,8 @@ int qemuSetupHostUsbDeviceCgroup(usbDevice *dev ATTRIBUTE_UNUSED, int rc; VIR_DEBUG("Process path '%s' for USB device", path); - rc = virCgroupAllowDevicePath(data->cgroup, path); + rc = virCgroupAllowDevicePath(data->cgroup, path, + VIR_CGROUP_DEVICE_RW); qemuAuditCgroupPath(data->vm, data->cgroup, "allow", path, rc); if (rc < 0) { virReportSystemError(-rc, @@ -226,7 +229,8 @@ int qemuSetupCgroup(struct qemud_driver *driver, goto cleanup; } - rc = virCgroupAllowDeviceMajor(cgroup, 'c', DEVICE_PTY_MAJOR); + rc = virCgroupAllowDeviceMajor(cgroup, 'c', DEVICE_PTY_MAJOR, + VIR_CGROUP_DEVICE_RWM); qemuAuditCgroupMajor(vm, cgroup, "allow", DEVICE_PTY_MAJOR, "pty", rc == 0); if (rc != 0) { @@ -240,7 +244,8 @@ int qemuSetupCgroup(struct qemud_driver *driver, ((vm->def->graphics[0]->type == VIR_DOMAIN_GRAPHICS_TYPE_VNC && driver->vncAllowHostAudio) || (vm->def->graphics[0]->type == VIR_DOMAIN_GRAPHICS_TYPE_SDL)))) { - rc = virCgroupAllowDeviceMajor(cgroup, 'c', DEVICE_SND_MAJOR); + rc = virCgroupAllowDeviceMajor(cgroup, 'c', DEVICE_SND_MAJOR, + VIR_CGROUP_DEVICE_RWM); qemuAuditCgroupMajor(vm, cgroup, "allow", DEVICE_SND_MAJOR, "sound", rc == 0); if (rc != 0) { @@ -251,8 +256,8 @@ int qemuSetupCgroup(struct qemud_driver *driver, } for (i = 0; deviceACL[i] != NULL ; i++) { - rc = virCgroupAllowDevicePath(cgroup, - deviceACL[i]); + rc = virCgroupAllowDevicePath(cgroup, deviceACL[i], + VIR_CGROUP_DEVICE_RW); qemuAuditCgroupPath(vm, cgroup, "allow", deviceACL[i], rc); if (rc < 0 && rc != -ENOENT) { diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 1981cdf..7b4edc5 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -1962,7 +1962,8 @@ static int qemudDomainSaveFlag(struct qemud_driver *driver, virDomainPtr dom, vm->def->name); goto endjob; } - rc = virCgroupAllowDevicePath(cgroup, path); + rc = virCgroupAllowDevicePath(cgroup, path, + VIR_CGROUP_DEVICE_RW); qemuAuditCgroupPath(vm, cgroup, "allow", path, rc); if (rc < 0) { virReportSystemError(-rc, @@ -2012,7 +2013,8 @@ static int qemudDomainSaveFlag(struct qemud_driver *driver, virDomainPtr dom, VIR_WARN("failed to restore save state label on %s", path); if (cgroup != NULL) { - rc = virCgroupDenyDevicePath(cgroup, path); + rc = virCgroupDenyDevicePath(cgroup, path, + VIR_CGROUP_DEVICE_RWM); qemuAuditCgroupPath(vm, cgroup, "deny", path, rc); if (rc < 0) VIR_WARN("Unable to deny device %s for %s %d", @@ -2044,7 +2046,8 @@ endjob: } if (cgroup != NULL) { - rc = virCgroupDenyDevicePath(cgroup, path); + rc = virCgroupDenyDevicePath(cgroup, path, + VIR_CGROUP_DEVICE_RWM); qemuAuditCgroupPath(vm, cgroup, "deny", path, rc); if (rc < 0) VIR_WARN("Unable to deny device %s for %s: %d", diff --git a/src/util/cgroup.c b/src/util/cgroup.c index a16b1ab..10e3143 100644 --- a/src/util/cgroup.c +++ b/src/util/cgroup.c @@ -1081,7 +1081,7 @@ int virCgroupGetSwapHardLimit(virCgroupPtr group, unsigned long long *kb) /** * virCgroupDenyAllDevices: * - * @group: The cgroup to deny devices for + * @group: The cgroup to deny all permissions, for all devices * * Returns: 0 on success */ @@ -1100,15 +1100,20 @@ int virCgroupDenyAllDevices(virCgroupPtr group) * @type: The device type (i.e., 'c' or 'b') * @major: The major number of the device * @minor: The minor number of the device + * @perms: Bitwise or of VIR_CGROUP_DEVICE permission bits to allow * * Returns: 0 on success */ -int virCgroupAllowDevice(virCgroupPtr group, char type, int major, int minor) +int virCgroupAllowDevice(virCgroupPtr group, char type, int major, int minor, + int perms) { int rc; char *devstr = NULL; - if (virAsprintf(&devstr, "%c %i:%i rwm", type, major, minor) == -1) { + if (virAsprintf(&devstr, "%c %i:%i %s%s%s", type, major, minor, + perms & VIR_CGROUP_DEVICE_READ ? "r" : "", + perms & VIR_CGROUP_DEVICE_WRITE ? "w" : "", + perms & VIR_CGROUP_DEVICE_MKNOD ? "m" : "") == -1) { rc = -ENOMEM; goto out; } @@ -1129,15 +1134,20 @@ out: * @group: The cgroup to allow an entire device major type for * @type: The device type (i.e., 'c' or 'b') * @major: The major number of the device type + * @perms: Bitwise or of VIR_CGROUP_DEVICE permission bits to allow * * Returns: 0 on success */ -int virCgroupAllowDeviceMajor(virCgroupPtr group, char type, int major) +int virCgroupAllowDeviceMajor(virCgroupPtr group, char type, int major, + int perms) { int rc; char *devstr = NULL; - if (virAsprintf(&devstr, "%c %i:* rwm", type, major) == -1) { + if (virAsprintf(&devstr, "%c %i:* %s%s%s", type, major, + perms & VIR_CGROUP_DEVICE_READ ? "r" : "", + perms & VIR_CGROUP_DEVICE_WRITE ? "w" : "", + perms & VIR_CGROUP_DEVICE_MKNOD ? "m" : "") == -1) { rc = -ENOMEM; goto out; } @@ -1157,6 +1167,7 @@ int virCgroupAllowDeviceMajor(virCgroupPtr group, char type, int major) * * @group: The cgroup to allow the device for * @path: the device to allow + * @perms: Bitwise or of VIR_CGROUP_DEVICE permission bits to allow * * Queries the type of device and its major/minor number, and * adds that to the cgroup ACL @@ -1165,7 +1176,7 @@ int virCgroupAllowDeviceMajor(virCgroupPtr group, char type, int major) * negative errno value on failure */ #if defined(major) && defined(minor) -int virCgroupAllowDevicePath(virCgroupPtr group, const char *path) +int virCgroupAllowDevicePath(virCgroupPtr group, const char *path, int perms) { struct stat sb; @@ -1178,11 +1189,13 @@ int virCgroupAllowDevicePath(virCgroupPtr group, const char *path) return virCgroupAllowDevice(group, S_ISCHR(sb.st_mode) ? 'c' : 'b', major(sb.st_rdev), - minor(sb.st_rdev)); + minor(sb.st_rdev), + perms); } #else int virCgroupAllowDevicePath(virCgroupPtr group ATTRIBUTE_UNUSED, - const char *path ATTRIBUTE_UNUSED) + const char *path ATTRIBUTE_UNUSED, + int perms ATTRIBUTE_UNUSED) { return -ENOSYS; } @@ -1196,15 +1209,20 @@ int virCgroupAllowDevicePath(virCgroupPtr group ATTRIBUTE_UNUSED, * @type: The device type (i.e., 'c' or 'b') * @major: The major number of the device * @minor: The minor number of the device + * @perms: Bitwise or of VIR_CGROUP_DEVICE permission bits to deny * * Returns: 0 on success */ -int virCgroupDenyDevice(virCgroupPtr group, char type, int major, int minor) +int virCgroupDenyDevice(virCgroupPtr group, char type, int major, int minor, + int perms) { int rc; char *devstr = NULL; - if (virAsprintf(&devstr, "%c %i:%i rwm", type, major, minor) == -1) { + if (virAsprintf(&devstr, "%c %i:%i %s%s%s", type, major, minor, + perms & VIR_CGROUP_DEVICE_READ ? "r" : "", + perms & VIR_CGROUP_DEVICE_WRITE ? "w" : "", + perms & VIR_CGROUP_DEVICE_MKNOD ? "m" : "") == -1) { rc = -ENOMEM; goto out; } @@ -1225,15 +1243,20 @@ out: * @group: The cgroup to deny an entire device major type for * @type: The device type (i.e., 'c' or 'b') * @major: The major number of the device type + * @perms: Bitwise or of VIR_CGROUP_DEVICE permission bits to deny * * Returns: 0 on success */ -int virCgroupDenyDeviceMajor(virCgroupPtr group, char type, int major) +int virCgroupDenyDeviceMajor(virCgroupPtr group, char type, int major, + int perms) { int rc; char *devstr = NULL; - if (virAsprintf(&devstr, "%c %i:* rwm", type, major) == -1) { + if (virAsprintf(&devstr, "%c %i:* %s%s%s", type, major, + perms & VIR_CGROUP_DEVICE_READ ? "r" : "", + perms & VIR_CGROUP_DEVICE_WRITE ? "w" : "", + perms & VIR_CGROUP_DEVICE_MKNOD ? "m" : "") == -1) { rc = -ENOMEM; goto out; } @@ -1249,7 +1272,7 @@ int virCgroupDenyDeviceMajor(virCgroupPtr group, char type, int major) } #if defined(major) && defined(minor) -int virCgroupDenyDevicePath(virCgroupPtr group, const char *path) +int virCgroupDenyDevicePath(virCgroupPtr group, const char *path, int perms) { struct stat sb; @@ -1262,11 +1285,13 @@ int virCgroupDenyDevicePath(virCgroupPtr group, const char *path) return virCgroupDenyDevice(group, S_ISCHR(sb.st_mode) ? 'c' : 'b', major(sb.st_rdev), - minor(sb.st_rdev)); + minor(sb.st_rdev), + perms); } #else int virCgroupDenyDevicePath(virCgroupPtr group ATTRIBUTE_UNUSED, - const char *path ATTRIBUTE_UNUSED) + const char *path ATTRIBUTE_UNUSED, + int perms ATTRIBUTE_UNUSED) { return -ENOSYS; } diff --git a/src/util/cgroup.h b/src/util/cgroup.h index b3c5f27..16ffb46 100644 --- a/src/util/cgroup.h +++ b/src/util/cgroup.h @@ -60,27 +60,41 @@ int virCgroupGetMemorySoftLimit(virCgroupPtr group, unsigned long long *kb); int virCgroupSetSwapHardLimit(virCgroupPtr group, unsigned long long kb); int virCgroupGetSwapHardLimit(virCgroupPtr group, unsigned long long *kb); +enum { + VIR_CGROUP_DEVICE_READ = 1, + VIR_CGROUP_DEVICE_WRITE = 2, + VIR_CGROUP_DEVICE_MKNOD = 4, + VIR_CGROUP_DEVICE_RW = VIR_CGROUP_DEVICE_READ | VIR_CGROUP_DEVICE_WRITE, + VIR_CGROUP_DEVICE_RWM = VIR_CGROUP_DEVICE_RW | VIR_CGROUP_DEVICE_MKNOD, +}; + int virCgroupDenyAllDevices(virCgroupPtr group); int virCgroupAllowDevice(virCgroupPtr group, char type, int major, - int minor); + int minor, + int perms); int virCgroupAllowDeviceMajor(virCgroupPtr group, char type, - int major); + int major, + int perms); int virCgroupAllowDevicePath(virCgroupPtr group, - const char *path); + const char *path, + int perms); int virCgroupDenyDevice(virCgroupPtr group, char type, int major, - int minor); + int minor, + int perms); int virCgroupDenyDeviceMajor(virCgroupPtr group, char type, - int major); + int major, + int perms); int virCgroupDenyDevicePath(virCgroupPtr group, - const char *path); + const char *path, + int perms); int virCgroupSetCpuShares(virCgroupPtr group, unsigned long long shares); int virCgroupGetCpuShares(virCgroupPtr group, unsigned long long *shares); -- 1.7.4

1 0

[libvirt] Fix cygwin build
by Daniel Veillard 09 Mar '11

09 Mar '11

In virLogEmergencyDumpAll I was using SIGBUS and SIGUSR2, and apparently they arent; defined on cygwin signal.h header. I decided to make the code conditional for all of them and not just those two for portability sake. I resisted doing this on the daemon side because as far as I know we don't compile it on WIN32. So I just pushed the following under the build breaking rule, Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel(a)veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/

2 2

[libvirt] [PATCH 1/2] virsh: Remove indirect link against libxml2
by Guido Günther 08 Mar '11

08 Mar '11

as described at http://wiki.debian.org/ToolChain/DSOLinking https://fedoraproject.org/wiki/UnderstandingDSOLinkChange otherwise the build fails on current Debian unstable with: CCLD virsh /usr/bin/ld: virsh-virsh.o: undefined reference to symbol 'xmlSaveTree@@LIBXML2_2.6.8' /usr/bin/ld: note: 'xmlSaveTree@@LIBXML2_2.6.8' is defined in DSO //usr/lib/libxml2.so.2 so try adding it to the linker command line //usr/lib/libxml2.so.2: could not read symbols: Invalid operation O.k. to apply? -- Guido --- tools/Makefile.am | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/tools/Makefile.am b/tools/Makefile.am index 68471ea..3e31dbd 100644 --- a/tools/Makefile.am +++ b/tools/Makefile.am @@ -47,6 +47,7 @@ virsh_LDADD = \ ../src/libvirt.la \ ../src/libvirt-qemu.la \ ../gnulib/lib/libgnu.la \ + $(LIBXML_LIBS) \ $(VIRSH_LIBS) virsh_CFLAGS = \ -I$(top_srcdir)/gnulib/lib -I../gnulib/lib \ -- 1.7.4.1

2 2

[libvirt] [PATCH 0/2] virsh: Change command option parsing
by Michal Privoznik 08 Mar '11

08 Mar '11

This series changes some of vshCommandOpt* functions to return tri-state result according to cases if argument was found and valid and permutations. In addition, we ensure const-correctness of vshCommandOptString function and related code. Michal Privoznik (2): virsh: change vshCommandOptString return type and fix const-correctness virsh: Change option parsing functions to return tri-state information. tools/virsh.c | 717 +++++++++++++++++++++++++++------------------------------ 1 files changed, 335 insertions(+), 382 deletions(-) -- 1.7.4

2 4

[libvirt] [RFC PATCH 0/5] Allow data upload/download to/from storage volumes
by Daniel P. Berrange 08 Mar '11

08 Mar '11

This patch series introduces two new APIs to allow data upload/download to/from storage volumes, using the streams APIs. Mostly I wrote this so I had an easier way to test the streams handling in my RPC patch series than using QEMU tunnelled migration code. Cole has expressed an interest in this kind of functionality in the past to allow virt-manager to upload kernel/initrd to remote hosts for provisioning guests. Most of the code here is pretty boring & trivial. The first patch is the one that is remotely interesting. One might argue we should just spawn 'dd' instead of this, but dd has some annoying aspects (you can't control its write offset in units smaller than the block size) and this could be useful more broadly.

2 9

[libvirt] [PATCH] docs/formatdomain: Add release info for disk <driver> attributes
by Cole Robinson 08 Mar '11

08 Mar '11

--- docs/formatdomain.html.in | 7 ++++--- 1 files changed, 4 insertions(+), 3 deletions(-) diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index 84b1cab..9b9ab29 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -785,8 +785,7 @@ <dd> The optional driver element allows specifying further details related to the hypervisor driver used to provide the disk. - <span class="since">Since 0.1.8; <code>io</code> attribute - since 0.8.8</span> + <span class="since">Since 0.1.8</span> <ul> <li> If the hypervisor supports multiple backend drivers, then @@ -802,16 +801,18 @@ The optional <code>cache</code> attribute controls the cache mechanism, possible values are "default", "none", "writethrough" and "writeback". + <span class="since">Since 0.6.0</span> </li> <li> The optional <code>error_policy</code> attribute controls how the hypervisor will behave on an error, possible values are "stop", "ignore", and "enospace". + <span class="since">Since 0.8.0</span> </li> <li> The optional <code>io</code> attribute controls specific policies on I/O; qemu guests support "threads" and - "native". + "native". <span class="since">Since 0.8.8</span> </li> </ul> </dd> -- 1.7.4

2 2

[libvirt] [PATCH 0/3] device-detaching with generated mac
by Michal Privoznik 08 Mar '11

08 Mar '11

When detaching interface via detach-device or virDomainDetachDevice() we parse input XML and (probably) generate a random MAC. This leads then into not finding interface and thus error. When a mac wasn't specified and domain has exactly one interface, semantic is clear. Otherwise we require <mac> in input XML. Michal Privoznik (3): Introduce flag representing if MAC address of interface was generated or not. qemu: Check for generated MACs while detaching interface xen: Check for generated MACs while detaching interface src/conf/domain_conf.c | 2 ++ src/conf/domain_conf.h | 1 + src/qemu/qemu_hotplug.c | 26 ++++++++++++++++++++------ src/xen/xm_internal.c | 3 ++- 4 files changed, 25 insertions(+), 7 deletions(-) -- 1.7.4

5 8

[libvirt] [PATCH v2 0/4] Support domain snapshots with current QMP
by Jiri Denemark 08 Mar '11

08 Mar '11

This version 2 of this series implements the third alternative (suggested by Dan Berrange) for falling back to HMP if appropriate snapshot command does not exist in QMP. Version 2: - refactor text monitor commands into parts which can be called directly from json monitor code - implement HMP fallback for loadvm and delvm in addition to savevm Jiri Denemark (4): qemu: Refactor text monitor snapshot commands qemu: Fallback to HMP when savevm QMP command is not found qemu: Refactor qemuDomainSnapshotCreateXML qemu: Stop guest CPUs before creating a snapshot src/qemu/qemu_driver.c | 156 ++++++++++++++++++++++---------- src/qemu/qemu_monitor_json.c | 204 +++++++++++++++++++++++++++++++++++------- src/qemu/qemu_monitor_text.c | 179 ++++++++++++++++++++++++++----------- src/qemu/qemu_monitor_text.h | 8 ++ 4 files changed, 411 insertions(+), 136 deletions(-) -- 1.7.4.1

1 4

[libvirt] Add persistent XML for cpu tunables
by Osier Yang 08 Mar '11

08 Mar '11

These are pretty rough patches, something like a draft, I beleive there must be many problems, please review it heavily, :-) New XML: <cputune> <shares>2048</shares> <vcpupin vcpu='0' cpuset='0-4,^1'/> <vcpupin vcpu='1' cpuset='1,3'/> <vcpupin vcpu='2' cpuset='0,2'/> </cputune> "shares" is to define the the proportional weighted cpu share for the domain. "vcpupin" is to define the cpu affinities of vcpus, it will not be displayed if one doesn't specify it explicitly in XML or set the cpu affinites for vcpu via "vcpupin", means there will be no vcpupin element in domain XML by default, and the constraints are: - Error if one specify entries more than the count of maxvcpus. - Error when one specify entries for same vcpu. - Error if value of attribute "vcpu" is more than count of "maxvcpus - 1". Attribute "cpuset" works same as "cpuset" of element "vcpu", reuse the codes for parsing and formating value of "cpuset" of element "vcpu". NB, the idea to add persistent XML for "cpushares" is from "Nikunj A. Dadhania": https://www.redhat.com/archives/libvir-list/2011-January/msg01183.html I rebased it and include it together in this patch series. [PATCH 1/6] cputune: new tests for testing cputune xml [PATCH 2/6] cputune: support cputune for xend driver [PATCH 3/6] cputune: support cputune for qemu driver [PATCH 4/6] cputune: support cputune xml for LXC driver [PATCH 5/6] cputune: support cputune xml config [PATCH 6/6] cputune: Add docs xml schema for cputune xml

2 11

[libvirt] libvirt-php: various fixes
by Tiziano Mueller 08 Mar '11

08 Mar '11

While building a libvirt-php package for Gentoo Linux I had to workaround a couple of build issues. The first two patches are the results. The last patch is a fix for the case libvirt has been built without Xen support. In this case libvirt_connect (and phpinfo()) fails because virGetVersion is called with a non-NULL typeVer argument and libvirt therefore checks for Xen version. I guess the documentation for virGetVersion should be updated since it also returns 0 if both type and typeVer are NULL. [PATCH 1/3] Fix building with threaded php. [PATCH 2/3] add --with-php-config flag [PATCH 3/3] fix libvirt_connect failure without Xen

2 5

[libvirt] [PATCH] Fix performance problem of virStorageVolCreateXMLFrom()
by Minoru Usui 08 Mar '11

08 Mar '11

virStorageVolCreateXMLFrom() is slow if destination Pool is LVM. Because write block size is not appropriate. On linux environment, block size of LVM Pool which is made by virStoragePoolCreateXML() is 4096 bytes. On the other hand, write block size of virStorageVolCreateXMLFrom() is 512 bytes. This value are hard corded in virStorageBackendCopyToFD(). This patch fix this block size problem on linux. [lvm block size] # virsh vol-dumpxml vol.img --pool lvm-pool |grep '<path>' <path>/dev/lvm-pool/vol.img</path> # blockdev --getbsz /dev/lvm-pool/vol.img 4096 [before patch] # echo 1 > /proc/sys/vm/drop_caches # time virsh vol-create-from lvm-pool vol.xml --inputpool dir-pool vol.img real 1m17.736s user 0m0.007s sys 0m0.021s [after patch] # echo 1 > /proc/sys/vm/drop_caches # time virsh vol-create-from lvm-pool vol.xml --inputpool dir-pool vol.img real 0m36.883s user 0m0.011s sys 0m0.031s Signed-off-by: Minoru Usui <usui(a)mxm.nes.nec.co.jp> --- src/storage/storage_backend.c | 23 +++++++++++++++++++---- 1 files changed, 19 insertions(+), 4 deletions(-) diff --git a/src/storage/storage_backend.c b/src/storage/storage_backend.c index 174155d..a1a930c 100644 --- a/src/storage/storage_backend.c +++ b/src/storage/storage_backend.c @@ -36,6 +36,10 @@ #include <sys/stat.h> #include <sys/param.h> #include <dirent.h> +#ifdef __linux__ +#include <sys/ioctl.h> +#include <linux/fs.h> +#endif #if HAVE_SELINUX # include <selinux/selinux.h> @@ -108,6 +112,9 @@ enum { TOOL_QCOW_CREATE, }; +#define READ_BLOCK_SIZE_DEFAULT (1024 * 1024) +#define WRITE_BLOCK_SIZE_DEFAULT (512) + static int ATTRIBUTE_NONNULL (2) virStorageBackendCopyToFD(virStorageVolDefPtr vol, virStorageVolDefPtr inputvol, @@ -119,8 +126,10 @@ virStorageBackendCopyToFD(virStorageVolDefPtr vol, int amtread = -1; int ret = 0; unsigned long long remain; - size_t rbytes = 1024 * 1024; /* For Read */ - char zerobuf[512]; + size_t rbytes = READ_BLOCK_SIZE_DEFAULT; + size_t wbytes = WRITE_BLOCK_SIZE_DEFAULT; + int interval; + char zerobuf[WRITE_BLOCK_SIZE_DEFAULT]; char *buf = NULL; if ((inputfd = open(inputvol->target.path, O_RDONLY)) < 0) { @@ -131,6 +140,12 @@ virStorageBackendCopyToFD(virStorageVolDefPtr vol, goto cleanup; } +#ifdef __linux__ + if (ioctl(fd, BLKBSZGET, &wbytes) < 0) { + wbytes = WRITE_BLOCK_SIZE_DEFAULT; + } +#endif + bzero(&zerobuf, sizeof(zerobuf)); if (VIR_ALLOC_N(buf, rbytes) < 0) { @@ -160,7 +175,7 @@ virStorageBackendCopyToFD(virStorageVolDefPtr vol, * blocks */ amtleft = amtread; do { - int interval = ((512 > amtleft) ? amtleft : 512); + interval = ((wbytes > amtleft) ? amtleft : wbytes); int offset = amtread - amtleft; if (is_dest_file && memcmp(buf+offset, zerobuf, interval) == 0) { @@ -179,7 +194,7 @@ virStorageBackendCopyToFD(virStorageVolDefPtr vol, goto cleanup; } - } while ((amtleft -= 512) > 0); + } while ((amtleft -= interval) > 0); } if (VIR_CLOSE(inputfd) < 0) { -- Minoru Usui <usui(a)mxm.nes.nec.co.jp>

2 2

[libvirt] [PATCH 0/3] more cgroup ACL audit improvements
by Eric Blake 08 Mar '11

08 Mar '11

Based on some feedback from Steve Grubb, Stephan Mueller, and others (unfortunately most of it on some non-public lists), I'm proposing the following patches to enhance my earlier audits for device cgroup ACLs. Pre-patch, cgroup audits looked like: type=VIRT_RESOURCE msg=audit(1298068194.479:83142): user pid=23863 uid=0 auid=500 ses=2 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='resrc=cgroup reason=deny vm="fedora_12" uuid=51c6fc83-65a4-e627-b698-042b00145201 item=all: exe="/home/dummy/libvirt/daemon/.libs/lt-libvirtd" hostname=? addr=? terminal=pts/0 res=success' type=VIRT_RESOURCE msg=audit(1298068194.480:83143): user pid=23863 uid=0 auid=500 ses=2 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='resrc=cgroup reason=allow vm="fedora_12" uuid=51c6fc83-65a4-e627-b698-042b00145201 item=major type="pty": exe="/home/dummy/libvirt/daemon/.libs/lt-libvirtd" hostname=? addr=? terminal=pts/0 res=success' type=VIRT_RESOURCE msg=audit(1298068194.480:83145): user pid=23863 uid=0 auid=500 ses=2 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='resrc=cgroup reason=allow vm="fedora_12" uuid=51c6fc83-65a4-e627-b698-042b00145201 item=file path="/dev/null": exe="/home/dummy/libvirt/daemon/.libs/lt-libvirtd" hostname=? addr=? terminal=pts/0 res=success' Post-patch, the same three audits are modified to include cgroup controller, rdev information for files, major device number for categories, and better names so as not to collide with well-known audit field names (for example, audit libraries expect item= to match a decimal integer, so I used class= instead). type=VIRT_RESOURCE msg=audit(1299541864.111:78295): user pid=30632 uid=0 auid=500 ses=1 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='resrc=cgroup reason=deny vm="fedora_12" uuid=51c6fc83-65a4-e627-b698-042b00145201 cgroup="/cgroup/devices/libvirt/qemu/fedora_12/" class=all: exe="/home/dummy/libvirt/daemon/.libs/lt-libvirtd" hostname=? addr=? terminal=pts/0 res=success' type=VIRT_RESOURCE msg=audit(1299541864.112:78296): user pid=30632 uid=0 auid=500 ses=1 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='resrc=cgroup reason=allow vm="fedora_12" uuid=51c6fc83-65a4-e627-b698-042b00145201 cgroup="/cgroup/devices/libvirt/qemu/fedora_12/" class=major category=pty maj=88: exe="/home/dummy/libvirt/daemon/.libs/lt-libvirtd" hostname=? addr=? terminal=pts/0 res=success' type=VIRT_RESOURCE msg=audit(1299541864.112:78297): user pid=30632 uid=0 auid=500 ses=1 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='resrc=cgroup reason=allow vm="fedora_12" uuid=51c6fc83-65a4-e627-b698-042b00145201 cgroup="/cgroup/devices/libvirt/qemu/fedora_12/" class=path path=/dev/null rdev=01:03: exe="/home/dummy/libvirt/daemon/.libs/lt-libvirtd" hostname=? addr=? terminal=pts/0 res=success' Eric Blake (3): audit: tweak audit messages to match conventions audit: split cgroup audit types to allow more information audit: also audit cgroup controller path src/libvirt_private.syms | 1 + src/qemu/qemu_audit.c | 115 ++++++++++++++++++++++++++++++++++++++++------ src/qemu/qemu_audit.h | 14 +++++- src/qemu/qemu_cgroup.c | 29 ++++++------ src/qemu/qemu_driver.c | 8 ++-- src/util/cgroup.c | 8 ++-- src/util/cgroup.h | 5 ++ 7 files changed, 142 insertions(+), 38 deletions(-) -- 1.7.4

1 3

[libvirt] problem attaching/detaching disk
by Shi Jin 07 Mar '11

07 Mar '11

Hi there, Attaching/detachnig virtio disk to a VM used to work fine with RHEL-5 but with RHEL-6 it seems to have problems. Attaching seems to work. For example, I can do virsh attach-disk <vmname> <qcow2 file name> vdb --driver file --subdriver qcow2 However, it generates a bit weird XML: <disk type='file' device='disk'> <driver name='file' type='qcow2'/> <source file='<file>/> <target dev='vdb' bus='virtio'/> <alias name='virtio-disk1'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/> </disk> In contrary, our original VM system disk has <disk type='file' device='disk'> <driver name='qemu' type='qcow2'/> <source file='<sys disk image>'/> <target dev='vda' bus='virtio'/> <alias name='virtio-disk0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> </disk> Note the different of driver name: qemu vs file. I think qemu is the proper name to use. This has been mentioned last year on this list [1]. I wonder if there has already been a proper fix for this problem. More seriously about this is that I am not able to detach the just attached disk, most likely due to the problem of wrong driver name. [cloudadmin@test2 ~]$ virsh detach-disk one-52 vdb error: Failed to detach disk error: operation failed: detaching virtio-disk1 device failed: Device 'virtio-disk1' not found But if I tried to remove the vda which uses qemu as driver name it would work. [cloudadmin@test2 ~]$ virsh detach-disk one-52 vda Disk detached successfully I also tried with raw disks to attach/detach and saw the same problems. Thank you very much. Shi [1]: http://www.redhat.com/archives/libvir-list/2010-August/msg00449.html -- Shi Jin, PhD

4 14

[libvirt] [PATCH v2] virsh: Change option parsing functions to return tri-state information.
by Michal Privoznik 07 Mar '11

07 Mar '11

This is needed to detect situations when optional argument was specified with non-integer value: '--int-opt foo'. To keep functions uniform vshCommandOptString function was also changed, because it returns tri-state value as well. Given result pointer is updated only in case of success. If parsing fails, result is not updated at all. diff --git a/tools/virsh.c b/tools/virsh.c index f3754d7..c274a6b 100644 --- a/tools/virsh.c +++ b/tools/virsh.c @@ -252,13 +252,14 @@ static const vshCmdGrp *vshCmdGrpSearch(const char *grpname); static int vshCmdGrpHelp(vshControl *ctl, const char *name); static vshCmdOpt *vshCommandOpt(const vshCmd *cmd, const char *name); -static int vshCommandOptInt(const vshCmd *cmd, const char *name, int *found); -static unsigned long vshCommandOptUL(const vshCmd *cmd, const char *name, - int *found); -static char *vshCommandOptString(const vshCmd *cmd, const char *name, - int *found); -static long long vshCommandOptLongLong(const vshCmd *cmd, const char *name, - int *found); +static int vshCommandOptInt(const vshCmd *cmd, const char *name, int *value) + ATTRIBUTE_NONNULL(3); +static int vshCommandOptUL(const vshCmd *cmd, const char *name, + unsigned long *value) ATTRIBUTE_NONNULL(3); +static int vshCommandOptString(const vshCmd *cmd, const char *name, + char **value) ATTRIBUTE_NONNULL(3); +static int vshCommandOptLongLong(const vshCmd *cmd, const char *name, + unsigned long long *value) ATTRIBUTE_NONNULL(3); static int vshCommandOptBool(const vshCmd *cmd, const char *name); static char *vshCommandOptArgv(const vshCmd *cmd, int count); @@ -589,9 +590,9 @@ static const vshCmdOptDef opts_help[] = { static int cmdHelp(vshControl *ctl, const vshCmd *cmd) { - const char *name; + char *name = NULL; - name = vshCommandOptString(cmd, "command", NULL); + vshCommandOptString(cmd, "command", &name); if (!name) { const vshCmdGrp *grp; @@ -704,8 +705,7 @@ cmdConnect(vshControl *ctl, const vshCmd *cmd) } VIR_FREE(ctl->name); - name = vshCommandOptString(cmd, "name", NULL); - if (!name) + if (vshCommandOptString(cmd, "name", &name) <= 0) return FALSE; ctl->name = vshStrdup(ctl, name); @@ -773,7 +773,7 @@ cmdConsole(vshControl *ctl, const vshCmd *cmd) { virDomainPtr dom; int ret; - const char *name; + const char *name = NULL; if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; @@ -781,7 +781,7 @@ cmdConsole(vshControl *ctl, const vshCmd *cmd) if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; - name = vshCommandOptString(cmd, "devname", NULL); + vshCommandOptString(cmd, "devname", (char**) &name); ret = cmdRunConsole(ctl, dom, name); @@ -964,7 +964,7 @@ static int cmdDomblkstat (vshControl *ctl, const vshCmd *cmd) { virDomainPtr dom; - char *name, *device; + char *name, *device = NULL; struct _virDomainBlockStats stats; if (!vshConnectionUsability (ctl, ctl->conn)) @@ -973,7 +973,7 @@ cmdDomblkstat (vshControl *ctl, const vshCmd *cmd) if (!(dom = vshCommandOptDomain (ctl, cmd, &name))) return FALSE; - if (!(device = vshCommandOptString (cmd, "device", NULL))) { + if (vshCommandOptString (cmd, "device", &device) <= 0) { virDomainFree(dom); return FALSE; } @@ -1021,7 +1021,7 @@ static int cmdDomIfstat (vshControl *ctl, const vshCmd *cmd) { virDomainPtr dom; - char *name, *device; + char *name, *device = NULL; struct _virDomainInterfaceStats stats; if (!vshConnectionUsability (ctl, ctl->conn)) @@ -1030,7 +1030,7 @@ cmdDomIfstat (vshControl *ctl, const vshCmd *cmd) if (!(dom = vshCommandOptDomain (ctl, cmd, &name))) return FALSE; - if (!(device = vshCommandOptString (cmd, "interface", NULL))) { + if (vshCommandOptString (cmd, "interface", &device) <= 0) { virDomainFree(dom); return FALSE; } @@ -1144,7 +1144,7 @@ cmdDomblkinfo(vshControl *ctl, const vshCmd *cmd) virDomainBlockInfo info; virDomainPtr dom; int ret = TRUE; - const char *device; + const char *device = NULL; if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; @@ -1152,7 +1152,7 @@ cmdDomblkinfo(vshControl *ctl, const vshCmd *cmd) if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; - if (!(device = vshCommandOptString (cmd, "device", NULL))) { + if (vshCommandOptString (cmd, "device", (char**) &device) <= 0) { virDomainFree(dom); return FALSE; } @@ -1230,8 +1230,7 @@ static int cmdCreate(vshControl *ctl, const vshCmd *cmd) { virDomainPtr dom; - char *from; - int found; + char *from = NULL; int ret = TRUE; char *buffer; #ifndef WIN32 @@ -1242,8 +1241,7 @@ cmdCreate(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; - from = vshCommandOptString(cmd, "file", &found); - if (!found) + if (vshCommandOptString(cmd, "file", &from) <= 0) return FALSE; if (virFileReadAll(from, VIRSH_MAX_XML_FILE, &buffer) < 0) @@ -1288,16 +1286,14 @@ static int cmdDefine(vshControl *ctl, const vshCmd *cmd) { virDomainPtr dom; - char *from; - int found; + char *from = NULL; int ret = TRUE; char *buffer; if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; - from = vshCommandOptString(cmd, "file", &found); - if (!found) + if (vshCommandOptString(cmd, "file", &from) <= 0) return FALSE; if (virFileReadAll(from, VIRSH_MAX_XML_FILE, &buffer) < 0) @@ -1336,15 +1332,13 @@ cmdUndefine(vshControl *ctl, const vshCmd *cmd) { virDomainPtr dom; int ret = TRUE; - char *name; - int found; + char *name = NULL; int id; if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; - name = vshCommandOptString(cmd, "domain", &found); - if (!found) + if (vshCommandOptString(cmd, "domain", &name) <= 0) return FALSE; if (name && virStrToLong_i(name, NULL, 10, &id) == 0 @@ -1455,13 +1449,13 @@ cmdSave(vshControl *ctl, const vshCmd *cmd) { virDomainPtr dom; char *name; - char *to; + char *to = NULL; int ret = TRUE; if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; - if (!(to = vshCommandOptString(cmd, "file", NULL))) + if (vshCommandOptString(cmd, "file", &to) <= 0) return FALSE; if (!(dom = vshCommandOptDomain(ctl, cmd, &name))) @@ -1594,7 +1588,6 @@ static int cmdSchedInfoUpdate(vshControl *ctl, const vshCmd *cmd, virSchedParameterPtr param) { - int found; char *data; /* Legacy 'weight' parameter */ @@ -1602,8 +1595,7 @@ cmdSchedInfoUpdate(vshControl *ctl, const vshCmd *cmd, param->type == VIR_DOMAIN_SCHED_FIELD_UINT && vshCommandOptBool(cmd, "weight")) { int val; - val = vshCommandOptInt(cmd, "weight", &found); - if (!found) { + if (vshCommandOptInt(cmd, "weight", &val) <= 0) { vshError(ctl, "%s", _("Invalid value of weight")); return -1; } else { @@ -1617,8 +1609,7 @@ cmdSchedInfoUpdate(vshControl *ctl, const vshCmd *cmd, param->type == VIR_DOMAIN_SCHED_FIELD_UINT && vshCommandOptBool(cmd, "cap")) { int val; - val = vshCommandOptInt(cmd, "cap", &found); - if (!found) { + if (vshCommandOptInt(cmd, "cap", &val) <= 0) { vshError(ctl, "%s", _("Invalid value of cap")); return -1; } else { @@ -1627,7 +1618,7 @@ cmdSchedInfoUpdate(vshControl *ctl, const vshCmd *cmd, return 1; } - if ((data = vshCommandOptString(cmd, "set", NULL))) { + if (vshCommandOptString(cmd, "set", &data)) { char *val = strchr(data, '='); int match = 0; if (!val) { @@ -1746,8 +1737,8 @@ cmdSchedinfo(vshControl *ctl, const vshCmd *cmd) /* See if we've tried to --set var=val. If so, the fact that we reach this point (with update == 0) means that "var" did not match any of the settable parameters. Report the error. */ - char *var_value_pair = vshCommandOptString(cmd, "set", NULL); - if (var_value_pair) { + char *var_value_pair = NULL; + if (vshCommandOptString(cmd, "set", &var_value_pair) > 0) { vshError(ctl, _("invalid scheduler option: %s"), var_value_pair); goto cleanup; @@ -1804,15 +1795,13 @@ static const vshCmdOptDef opts_restore[] = { static int cmdRestore(vshControl *ctl, const vshCmd *cmd) { - char *from; - int found; + char *from = NULL; int ret = TRUE; if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; - from = vshCommandOptString(cmd, "file", &found); - if (!found) + if (vshCommandOptString(cmd, "file", &from) <= 0) return FALSE; if (virDomainRestore(ctl->conn, from) == 0) { @@ -1846,14 +1835,14 @@ cmdDump(vshControl *ctl, const vshCmd *cmd) { virDomainPtr dom; char *name; - char *to; + char *to = NULL; int ret = TRUE; int flags = 0; if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; - if (!(to = vshCommandOptString(cmd, "file", NULL))) + if (vshCommandOptString(cmd, "file", &to) <= 0) return FALSE; if (!(dom = vshCommandOptDomain(ctl, cmd, &name))) @@ -2300,7 +2289,10 @@ cmdFreecell(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; - cell = vshCommandOptInt(cmd, "cellno", &cell_given); + if ( (cell_given = vshCommandOptInt(cmd, "cellno", &cell)) < 0) { + vshError(ctl, "%s", _("cell number has to be a number")); + goto cleanup; + } all_given = vshCommandOptBool(cmd, "all"); if (all_given && cell_given) { @@ -2412,10 +2404,10 @@ static const vshCmdOptDef opts_maxvcpus[] = { static int cmdMaxvcpus(vshControl *ctl, const vshCmd *cmd) { - char *type; + char *type = NULL; int vcpus; - type = vshCommandOptString(cmd, "type", NULL); + vshCommandOptString(cmd, "type", &type); if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; @@ -2712,9 +2704,8 @@ cmdVcpupin(vshControl *ctl, const vshCmd *cmd) virDomainPtr dom; virNodeInfo nodeinfo; int vcpu; - char *cpulist; + char *cpulist = NULL; int ret = TRUE; - int vcpufound = 0; unsigned char *cpumap; int cpumaplen; int i; @@ -2726,14 +2717,13 @@ cmdVcpupin(vshControl *ctl, const vshCmd *cmd) if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; - vcpu = vshCommandOptInt(cmd, "vcpu", &vcpufound); - if (!vcpufound) { + if (vshCommandOptInt(cmd, "vcpu", &vcpu) <= 0) { vshError(ctl, "%s", _("vcpupin: Invalid or missing vCPU number.")); virDomainFree(dom); return FALSE; } - if (!(cpulist = vshCommandOptString(cmd, "cpulist", NULL))) { + if (vshCommandOptString(cmd, "cpulist", &cpulist) <= 0) { virDomainFree(dom); return FALSE; } @@ -2862,7 +2852,7 @@ cmdSetvcpus(vshControl *ctl, const vshCmd *cmd) if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; - count = vshCommandOptInt(cmd, "count", &count); + vshCommandOptInt(cmd, "count", &count); if (!flags) { if (virDomainSetVcpus(dom, count) != 0) { @@ -2918,7 +2908,7 @@ cmdSetmem(vshControl *ctl, const vshCmd *cmd) { virDomainPtr dom; virDomainInfo info; - unsigned long kilobytes; + unsigned long kilobytes = 0; int ret = TRUE; if (!vshConnectionUsability(ctl, ctl->conn)) @@ -2927,7 +2917,7 @@ cmdSetmem(vshControl *ctl, const vshCmd *cmd) if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; - kilobytes = vshCommandOptUL(cmd, "kilobytes", NULL); + vshCommandOptUL(cmd, "kilobytes", &kilobytes); if (kilobytes <= 0) { virDomainFree(dom); vshError(ctl, _("Invalid value of %lu for memory size"), kilobytes); @@ -2984,7 +2974,7 @@ cmdSetmaxmem(vshControl *ctl, const vshCmd *cmd) if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; - kilobytes = vshCommandOptInt(cmd, "kilobytes", &kilobytes); + vshCommandOptInt(cmd, "kilobytes", &kilobytes); if (kilobytes <= 0) { virDomainFree(dom); vshError(ctl, _("Invalid value of %d for memory size"), kilobytes); @@ -3043,7 +3033,7 @@ static int cmdMemtune(vshControl * ctl, const vshCmd * cmd) { virDomainPtr dom; - long long hard_limit, soft_limit, swap_hard_limit, min_guarantee; + long long hard_limit = 0, soft_limit = 0, swap_hard_limit = 0, min_guarantee = 0; int nparams = 0; unsigned int i = 0; virMemoryParameterPtr params = NULL, temp = NULL; @@ -3055,23 +3045,19 @@ cmdMemtune(vshControl * ctl, const vshCmd * cmd) if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; - hard_limit = - vshCommandOptLongLong(cmd, "hard-limit", NULL); + vshCommandOptLongLong(cmd, "hard-limit", (unsigned long long*) &hard_limit); if (hard_limit) nparams++; - soft_limit = - vshCommandOptLongLong(cmd, "soft-limit", NULL); + vshCommandOptLongLong(cmd, "soft-limit", (unsigned long long*) &soft_limit); if (soft_limit) nparams++; - swap_hard_limit = - vshCommandOptLongLong(cmd, "swap-hard-limit", NULL); + vshCommandOptLongLong(cmd, "swap-hard-limit", (unsigned long long*) &swap_hard_limit); if (swap_hard_limit) nparams++; - min_guarantee = - vshCommandOptLongLong(cmd, "min-guarantee", NULL); + vshCommandOptLongLong(cmd, "min-guarantee", (unsigned long long*)&min_guarantee); if (min_guarantee) nparams++; @@ -3315,8 +3301,8 @@ static int cmdDomXMLFromNative(vshControl *ctl, const vshCmd *cmd) { int ret = TRUE; - char *format; - char *configFile; + char *format = NULL; + char *configFile = NULL; char *configData; char *xmlData; int flags = 0; @@ -3324,8 +3310,8 @@ cmdDomXMLFromNative(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; - format = vshCommandOptString(cmd, "format", NULL); - configFile = vshCommandOptString(cmd, "config", NULL); + vshCommandOptString(cmd, "format",&format); + vshCommandOptString(cmd, "config", &configFile); if (virFileReadAll(configFile, 1024*1024, &configData) < 0) return FALSE; @@ -3360,8 +3346,8 @@ static int cmdDomXMLToNative(vshControl *ctl, const vshCmd *cmd) { int ret = TRUE; - char *format; - char *xmlFile; + char *format = NULL; + char *xmlFile = NULL; char *configData; char *xmlData; int flags = 0; @@ -3369,8 +3355,8 @@ cmdDomXMLToNative(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; - format = vshCommandOptString(cmd, "format", NULL); - xmlFile = vshCommandOptString(cmd, "xml", NULL); + vshCommandOptString(cmd, "format", &format); + vshCommandOptString(cmd, "xml", &xmlFile); if (virFileReadAll(xmlFile, 1024*1024, &xmlData) < 0) return FALSE; @@ -3525,10 +3511,10 @@ doMigrate (void *opaque) { char ret = '1'; virDomainPtr dom = NULL; - const char *desturi; - const char *migrateuri; - const char *dname; - int flags = 0, found; + const char *desturi = NULL; + const char *migrateuri = NULL; + const char *dname = NULL; + int flags = 0; vshCtrlData *data = opaque; vshControl *ctl = data->ctl; const vshCmd *cmd = data->cmd; @@ -3547,13 +3533,12 @@ doMigrate (void *opaque) if (!(dom = vshCommandOptDomain (ctl, cmd, NULL))) goto out; - desturi = vshCommandOptString (cmd, "desturi", &found); - if (!found) + if (vshCommandOptString (cmd, "desturi", (char**) &desturi) <= 0) goto out; - migrateuri = vshCommandOptString (cmd, "migrateuri", NULL); + vshCommandOptString(cmd, "migrateuri", (char**) &migrateuri); - dname = vshCommandOptString (cmd, "dname", NULL); + vshCommandOptString(cmd, "dname", (char**) &dname); if (vshCommandOptBool (cmd, "live")) flags |= VIR_MIGRATE_LIVE; @@ -3645,7 +3630,6 @@ cmdMigrate (vshControl *ctl, const vshCmd *cmd) int ret = -1; virThread workerThread; struct pollfd pollfd; - int found; char retchar; struct sigaction sig_action; struct sigaction old_sig_action; @@ -3670,8 +3654,7 @@ cmdMigrate (vshControl *ctl, const vshCmd *cmd) if (vshCommandOptBool (cmd, "live")) live_flag = TRUE; - timeout = vshCommandOptInt(cmd, "timeout", &found); - if (found) { + if (vshCommandOptInt(cmd, "timeout", &timeout)) { if (! live_flag) { vshError(ctl, "%s", _("migrate: Unexpected timeout for offline migration")); goto cleanup; @@ -3798,7 +3781,6 @@ cmdMigrateSetMaxDowntime(vshControl *ctl, const vshCmd *cmd) { virDomainPtr dom = NULL; long long downtime; - int found; int ret = FALSE; if (!vshConnectionUsability(ctl, ctl->conn)) @@ -3807,8 +3789,8 @@ cmdMigrateSetMaxDowntime(vshControl *ctl, const vshCmd *cmd) if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; - downtime = vshCommandOptLongLong(cmd, "downtime", &found); - if (!found || downtime < 1) { + if ((vshCommandOptLongLong(cmd, "downtime", (unsigned long long*)&downtime) <= 0) || + (downtime < 0)) { vshError(ctl, "%s", _("migrate: Invalid downtime")); goto done; } @@ -3890,16 +3872,14 @@ static int cmdNetworkCreate(vshControl *ctl, const vshCmd *cmd) { virNetworkPtr network; - char *from; - int found; + char *from = NULL; int ret = TRUE; char *buffer; if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; - from = vshCommandOptString(cmd, "file", &found); - if (!found) + if (vshCommandOptString(cmd, "file", &from) <= 0) return FALSE; if (virFileReadAll(from, VIRSH_MAX_XML_FILE, &buffer) < 0) @@ -3938,16 +3918,14 @@ static int cmdNetworkDefine(vshControl *ctl, const vshCmd *cmd) { virNetworkPtr network; - char *from; - int found; + char *from = NULL; int ret = TRUE; char *buffer; if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; - from = vshCommandOptString(cmd, "file", &found); - if (!found) + if (vshCommandOptString(cmd, "file", &from) <= 0) return FALSE; if (virFileReadAll(from, VIRSH_MAX_XML_FILE, &buffer) < 0) @@ -4711,16 +4689,14 @@ static int cmdInterfaceDefine(vshControl *ctl, const vshCmd *cmd) { virInterfacePtr iface; - char *from; - int found; + char *from = NULL; int ret = TRUE; char *buffer; if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; - from = vshCommandOptString(cmd, "file", &found); - if (!found) + if (vshCommandOptString(cmd, "file", &from) <= 0) return FALSE; if (virFileReadAll(from, VIRSH_MAX_XML_FILE, &buffer) < 0) @@ -4873,16 +4849,14 @@ static int cmdNWFilterDefine(vshControl *ctl, const vshCmd *cmd) { virNWFilterPtr nwfilter; - char *from; - int found; + char *from = NULL; int ret = TRUE; char *buffer; if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; - from = vshCommandOptString(cmd, "file", &found); - if (!found) + if (vshCommandOptString(cmd, "file", &from) <= 0) return FALSE; if (virFileReadAll(from, VIRSH_MAX_XML_FILE, &buffer) < 0) @@ -5214,16 +5188,14 @@ static int cmdPoolCreate(vshControl *ctl, const vshCmd *cmd) { virStoragePoolPtr pool; - char *from; - int found; + char *from = NULL; int ret = TRUE; char *buffer; if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; - from = vshCommandOptString(cmd, "file", &found); - if (!found) + if (vshCommandOptString(cmd, "file", &from) <= 0) return FALSE; if (virFileReadAll(from, VIRSH_MAX_XML_FILE, &buffer) < 0) @@ -5266,18 +5238,15 @@ static int cmdNodeDeviceCreate(vshControl *ctl, const vshCmd *cmd) { virNodeDevicePtr dev = NULL; - char *from; - int found = 0; + char *from = NULL; int ret = TRUE; char *buffer; if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; - from = vshCommandOptString(cmd, "file", &found); - if (!found) { + if (vshCommandOptString(cmd, "file", &from) <= 0) return FALSE; - } if (virFileReadAll(from, VIRSH_MAX_XML_FILE, &buffer) < 0) return FALSE; @@ -5319,17 +5288,14 @@ cmdNodeDeviceDestroy(vshControl *ctl, const vshCmd *cmd) { virNodeDevicePtr dev = NULL; int ret = TRUE; - int found = 0; - char *name; + char *name = NULL; if (!vshConnectionUsability(ctl, ctl->conn)) { return FALSE; } - name = vshCommandOptString(cmd, "name", &found); - if (!found) { + if (vshCommandOptString(cmd, "name", &name) <= 0) return FALSE; - } dev = virNodeDeviceLookupByName(ctl->conn, name); @@ -5363,23 +5329,21 @@ static const vshCmdOptDef opts_pool_X_as[] = { static int buildPoolXML(const vshCmd *cmd, char **retname, char **xml) { - int found; - char *name, *type, *srcHost, *srcPath, *srcDev, *srcName, *srcFormat, *target; + char *name = NULL, *type = NULL, *srcHost = NULL, *srcPath = NULL, + *srcDev = NULL, *srcName = NULL, *srcFormat = NULL, *target = NULL; virBuffer buf = VIR_BUFFER_INITIALIZER; - name = vshCommandOptString(cmd, "name", &found); - if (!found) + if (vshCommandOptString(cmd, "name", &name) <= 0) goto cleanup; - type = vshCommandOptString(cmd, "type", &found); - if (!found) + if (vshCommandOptString(cmd, "type", &type) <= 0) goto cleanup; - srcHost = vshCommandOptString(cmd, "source-host", &found); - srcPath = vshCommandOptString(cmd, "source-path", &found); - srcDev = vshCommandOptString(cmd, "source-dev", &found); - srcName = vshCommandOptString(cmd, "source-name", &found); - srcFormat = vshCommandOptString(cmd, "source-format", &found); - target = vshCommandOptString(cmd, "target", &found); + vshCommandOptString(cmd, "source-host", &srcHost); + vshCommandOptString(cmd, "source-path", &srcPath); + vshCommandOptString(cmd, "source-dev", &srcDev); + vshCommandOptString(cmd, "source-name", &srcName); + vshCommandOptString(cmd, "source-format", &srcFormat); + vshCommandOptString(cmd, "target", &target); virBufferVSprintf(&buf, "<pool type='%s'>\n", type); virBufferVSprintf(&buf, " <name>%s</name>\n", name); @@ -5479,16 +5443,14 @@ static int cmdPoolDefine(vshControl *ctl, const vshCmd *cmd) { virStoragePoolPtr pool; - char *from; - int found; + char *from = NULL; int ret = TRUE; char *buffer; if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; - from = vshCommandOptString(cmd, "file", &found); - if (!found) + if (vshCommandOptString(cmd, "file", &from) <= 0) return FALSE; if (virFileReadAll(from, VIRSH_MAX_XML_FILE, &buffer) < 0) @@ -6176,29 +6138,22 @@ static const vshCmdOptDef opts_find_storage_pool_sources_as[] = { static int cmdPoolDiscoverSourcesAs(vshControl * ctl, const vshCmd * cmd ATTRIBUTE_UNUSED) { - char *type, *host; + char *type = NULL, *host = NULL; char *srcSpec = NULL; char *srcList; - char *initiator; - int found; + char *initiator = NULL; - type = vshCommandOptString(cmd, "type", &found); - if (!found) + if (vshCommandOptString(cmd, "type", &type) <= 0) return FALSE; - host = vshCommandOptString(cmd, "host", &found); - if (!found) - host = NULL; - initiator = vshCommandOptString(cmd, "initiator", &found); - if (!found) - initiator = NULL; + vshCommandOptString(cmd, "host", &host); + vshCommandOptString(cmd, "initiator", &initiator); if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; if (host) { - char *port = vshCommandOptString(cmd, "port", &found); - if (!found) - port = NULL; + char *port = NULL; + vshCommandOptString(cmd, "port", &port); virBuffer buf = VIR_BUFFER_INITIALIZER; virBufferAddLit(&buf, "<source>\n"); virBufferVSprintf(&buf, " <host name='%s'", host); @@ -6251,16 +6206,12 @@ static const vshCmdOptDef opts_find_storage_pool_sources[] = { static int cmdPoolDiscoverSources(vshControl * ctl, const vshCmd * cmd ATTRIBUTE_UNUSED) { - char *type, *srcSpecFile, *srcList; + char *type = NULL, *srcSpecFile = NULL, *srcList; char *srcSpec = NULL; - int found; - type = vshCommandOptString(cmd, "type", &found); - if (!found) + if ( vshCommandOptString(cmd, "type", &type) <= 0) return FALSE; - srcSpecFile = vshCommandOptString(cmd, "srcSpec", &found); - if (!found) - srcSpecFile = NULL; + vshCommandOptString(cmd, "srcSpec", &srcSpecFile); if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; @@ -6501,9 +6452,8 @@ cmdVolCreateAs(vshControl *ctl, const vshCmd *cmd) { virStoragePoolPtr pool; virStorageVolPtr vol; - int found; char *xml; - char *name, *capacityStr, *allocationStr, *format; + char *name = NULL, *capacityStr = NULL, *allocationStr = NULL, *format = NULL; char *snapshotStrVol, *snapshotStrFormat; unsigned long long capacity, allocation = 0; virBuffer buf = VIR_BUFFER_INITIALIZER; @@ -6515,24 +6465,22 @@ cmdVolCreateAs(vshControl *ctl, const vshCmd *cmd) VSH_BYNAME))) return FALSE; - name = vshCommandOptString(cmd, "name", &found); - if (!found) + if (vshCommandOptString(cmd, "name", &name) <= 0) goto cleanup; - capacityStr = vshCommandOptString(cmd, "capacity", &found); - if (!found) + if (vshCommandOptString(cmd, "capacity", &capacityStr) <= 0) goto cleanup; if (cmdVolSize(capacityStr, &capacity) < 0) vshError(ctl, _("Malformed size %s"), capacityStr); - allocationStr = vshCommandOptString(cmd, "allocation", &found); + vshCommandOptString(cmd, "allocation", &allocationStr); if (allocationStr && cmdVolSize(allocationStr, &allocation) < 0) vshError(ctl, _("Malformed size %s"), allocationStr); - format = vshCommandOptString(cmd, "format", &found); - snapshotStrVol = vshCommandOptString(cmd, "backing-vol", &found); - snapshotStrFormat = vshCommandOptString(cmd, "backing-vol-format", &found); + vshCommandOptString(cmd, "format", &format); + vshCommandOptString(cmd, "backing-vol", &snapshotStrVol); + vshCommandOptString(cmd, "backing-vol-format", &snapshotStrFormat); virBufferAddLit(&buf, "<volume>\n"); virBufferVSprintf(&buf, " <name>%s</name>\n", name); @@ -6723,8 +6671,7 @@ cmdVolCreate(vshControl *ctl, const vshCmd *cmd) { virStoragePoolPtr pool; virStorageVolPtr vol; - char *from; - int found; + char *from = NULL; int ret = TRUE; char *buffer; @@ -6735,8 +6682,7 @@ cmdVolCreate(vshControl *ctl, const vshCmd *cmd) VSH_BYNAME))) return FALSE; - from = vshCommandOptString(cmd, "file", &found); - if (!found) { + if (vshCommandOptString(cmd, "file", &from) <= 0) { virStoragePoolFree(pool); return FALSE; } @@ -6784,8 +6730,7 @@ cmdVolCreateFrom(vshControl *ctl, const vshCmd *cmd) { virStoragePoolPtr pool = NULL; virStorageVolPtr newvol = NULL, inputvol = NULL; - char *from; - int found; + char *from = NULL; int ret = FALSE; char *buffer = NULL; @@ -6795,10 +6740,8 @@ cmdVolCreateFrom(vshControl *ctl, const vshCmd *cmd) if (!(pool = vshCommandOptPoolBy(ctl, cmd, "pool", NULL, VSH_BYNAME))) goto cleanup; - from = vshCommandOptString(cmd, "file", &found); - if (!found) { + if (vshCommandOptString(cmd, "file", &from) <= 0) goto cleanup; - } if (!(inputvol = vshCommandOptVol(ctl, cmd, "vol", "inputpool", NULL))) goto cleanup; @@ -6883,9 +6826,8 @@ cmdVolClone(vshControl *ctl, const vshCmd *cmd) { virStoragePoolPtr origpool = NULL; virStorageVolPtr origvol = NULL, newvol = NULL; - char *name, *origxml = NULL; + char *name = NULL, *origxml = NULL; xmlChar *newxml = NULL; - int found; int ret = FALSE; if (!vshConnectionUsability(ctl, ctl->conn)) @@ -6900,8 +6842,7 @@ cmdVolClone(vshControl *ctl, const vshCmd *cmd) goto cleanup; } - name = vshCommandOptString(cmd, "newname", &found); - if (!found) + if (vshCommandOptString(cmd, "newname", &name) <= 0) goto cleanup; origxml = virStorageVolGetXMLDesc(origvol, 0); @@ -7569,15 +7510,14 @@ static const vshCmdOptDef opts_secret_define[] = { static int cmdSecretDefine(vshControl *ctl, const vshCmd *cmd) { - char *from, *buffer; + char *from = NULL, *buffer; virSecretPtr res; char uuid[VIR_UUID_STRING_BUFLEN]; if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; - from = vshCommandOptString(cmd, "file", NULL); - if (!from) + if (vshCommandOptString(cmd, "file", &from) <= 0) return FALSE; if (virFileReadAll(from, VIRSH_MAX_XML_FILE, &buffer) < 0) @@ -7660,8 +7600,8 @@ cmdSecretSetValue(vshControl *ctl, const vshCmd *cmd) { virSecretPtr secret; size_t value_size; - char *base64, *value; - int found, res, ret = FALSE; + char *base64 = NULL, *value; + int res, ret = FALSE; if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; @@ -7670,8 +7610,7 @@ cmdSecretSetValue(vshControl *ctl, const vshCmd *cmd) if (secret == NULL) return FALSE; - base64 = vshCommandOptString(cmd, "base64", &found); - if (!base64) + if (vshCommandOptString(cmd, "base64", &base64) <= 0) goto cleanup; if (!base64_decode_alloc(base64, strlen(base64), &value, &value_size)) { @@ -8036,17 +7975,15 @@ cmdNodeListDevicesPrint(vshControl *ctl, static int cmdNodeListDevices (vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED) { - char *cap; + char *cap = NULL; char **devices; - int found, num_devices, i; + int num_devices, i; int tree = vshCommandOptBool(cmd, "tree"); if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; - cap = vshCommandOptString(cmd, "cap", &found); - if (!found) - cap = NULL; + vshCommandOptString(cmd, "cap", &cap); num_devices = virNodeNumOfDevices(ctl->conn, cap, 0); if (num_devices < 0) { @@ -8124,13 +8061,13 @@ static const vshCmdOptDef opts_node_device_dumpxml[] = { static int cmdNodeDeviceDumpXML (vshControl *ctl, const vshCmd *cmd) { - const char *name; + const char *name = NULL; virNodeDevicePtr device; char *xml; if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; - if (!(name = vshCommandOptString(cmd, "device", NULL))) + if (vshCommandOptString(cmd, "device", (char**) &name) <= 0) return FALSE; if (!(device = virNodeDeviceLookupByName(ctl->conn, name))) { vshError(ctl, "%s '%s'", _("Could not find matching device"), name); @@ -8167,13 +8104,13 @@ static const vshCmdOptDef opts_node_device_dettach[] = { static int cmdNodeDeviceDettach (vshControl *ctl, const vshCmd *cmd) { - const char *name; + const char *name = NULL; virNodeDevicePtr device; int ret = TRUE; if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; - if (!(name = vshCommandOptString(cmd, "device", NULL))) + if (vshCommandOptString(cmd, "device", (char**) &name) <= 0) return FALSE; if (!(device = virNodeDeviceLookupByName(ctl->conn, name))) { vshError(ctl, "%s '%s'", _("Could not find matching device"), name); @@ -8208,13 +8145,13 @@ static const vshCmdOptDef opts_node_device_reattach[] = { static int cmdNodeDeviceReAttach (vshControl *ctl, const vshCmd *cmd) { - const char *name; + const char *name = NULL; virNodeDevicePtr device; int ret = TRUE; if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; - if (!(name = vshCommandOptString(cmd, "device", NULL))) + if (vshCommandOptString(cmd, "device", (char**) &name) <= 0) return FALSE; if (!(device = virNodeDeviceLookupByName(ctl->conn, name))) { vshError(ctl, "%s '%s'", _("Could not find matching device"), name); @@ -8249,13 +8186,13 @@ static const vshCmdOptDef opts_node_device_reset[] = { static int cmdNodeDeviceReset (vshControl *ctl, const vshCmd *cmd) { - const char *name; + const char *name = NULL; virNodeDevicePtr device; int ret = TRUE; if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; - if (!(name = vshCommandOptString(cmd, "device", NULL))) + if (vshCommandOptString(cmd, "device", (char**) &name) <= 0) return FALSE; if (!(device = virNodeDeviceLookupByName(ctl->conn, name))) { vshError(ctl, "%s '%s'", _("Could not find matching device"), name); @@ -8516,10 +8453,9 @@ static int cmdAttachDevice(vshControl *ctl, const vshCmd *cmd) { virDomainPtr dom; - char *from; + char *from = NULL; char *buffer; int ret = TRUE; - int found; unsigned int flags; if (!vshConnectionUsability(ctl, ctl->conn)) @@ -8528,8 +8464,7 @@ cmdAttachDevice(vshControl *ctl, const vshCmd *cmd) if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; - from = vshCommandOptString(cmd, "file", &found); - if (!found) { + if (vshCommandOptString(cmd, "file", &from) <= 0) { virDomainFree(dom); return FALSE; } @@ -8586,7 +8521,6 @@ cmdDetachDevice(vshControl *ctl, const vshCmd *cmd) char *from; char *buffer; int ret = TRUE; - int found; unsigned int flags; if (!vshConnectionUsability(ctl, ctl->conn)) @@ -8595,8 +8529,7 @@ cmdDetachDevice(vshControl *ctl, const vshCmd *cmd) if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; - from = vshCommandOptString(cmd, "file", &found); - if (!found) { + if (vshCommandOptString(cmd, "file", &from) <= 0) { virDomainFree(dom); return FALSE; } @@ -8651,10 +8584,9 @@ static int cmdUpdateDevice(vshControl *ctl, const vshCmd *cmd) { virDomainPtr dom; - char *from; + char *from = NULL; char *buffer; int ret = TRUE; - int found; unsigned int flags; if (!vshConnectionUsability(ctl, ctl->conn)) @@ -8663,8 +8595,7 @@ cmdUpdateDevice(vshControl *ctl, const vshCmd *cmd) if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; - from = vshCommandOptString(cmd, "file", &found); - if (!found) { + if (vshCommandOptString(cmd, "file", &from) <= 0) { virDomainFree(dom); return FALSE; } @@ -8727,7 +8658,8 @@ static int cmdAttachInterface(vshControl *ctl, const vshCmd *cmd) { virDomainPtr dom = NULL; - char *mac, *target, *script, *type, *source, *model; + char *mac = NULL, *target = NULL, *script = NULL, *type = NULL, + *source = NULL, *model = NULL; int typ, ret = FALSE; unsigned int flags; virBuffer buf = VIR_BUFFER_INITIALIZER; @@ -8739,14 +8671,14 @@ cmdAttachInterface(vshControl *ctl, const vshCmd *cmd) if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) goto cleanup; - if (!(type = vshCommandOptString(cmd, "type", NULL))) + if (vshCommandOptString(cmd, "type", &type) <= 0) goto cleanup; - source = vshCommandOptString(cmd, "source", NULL); - target = vshCommandOptString(cmd, "target", NULL); - mac = vshCommandOptString(cmd, "mac", NULL); - script = vshCommandOptString(cmd, "script", NULL); - model = vshCommandOptString(cmd, "model", NULL); + vshCommandOptString(cmd, "source", &source); + vshCommandOptString(cmd, "target", &target); + vshCommandOptString(cmd, "mac", &mac); + vshCommandOptString(cmd, "script",&script); + vshCommandOptString(cmd, "model", &model); /* check interface type */ if (STREQ(type, "network")) { @@ -8848,10 +8780,10 @@ cmdDetachInterface(vshControl *ctl, const vshCmd *cmd) if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) goto cleanup; - if (!(type = vshCommandOptString(cmd, "type", NULL))) + if (vshCommandOptString(cmd, "type", &type) <= 0) goto cleanup; - mac = vshCommandOptString(cmd, "mac", NULL); + vshCommandOptString(cmd, "mac", &mac); doc = virDomainGetXMLDesc(dom, 0); if (!doc) @@ -8976,7 +8908,8 @@ static int cmdAttachDisk(vshControl *ctl, const vshCmd *cmd) { virDomainPtr dom = NULL; - char *source, *target, *driver, *subdriver, *type, *mode; + char *source = NULL, *target = NULL, *driver = NULL, *subdriver = NULL, + *type = NULL, *mode = NULL; int isFile = 0, ret = FALSE; unsigned int flags; char *stype; @@ -8989,17 +8922,17 @@ cmdAttachDisk(vshControl *ctl, const vshCmd *cmd) if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) goto cleanup; - if (!(source = vshCommandOptString(cmd, "source", NULL))) + if (vshCommandOptString(cmd, "source", &source) <= 0) goto cleanup; - if (!(target = vshCommandOptString(cmd, "target", NULL))) + if (vshCommandOptString(cmd, "target", &target) <=0) goto cleanup; - driver = vshCommandOptString(cmd, "driver", NULL); - subdriver = vshCommandOptString(cmd, "subdriver", NULL); - type = vshCommandOptString(cmd, "type", NULL); - mode = vshCommandOptString(cmd, "mode", NULL); - stype = vshCommandOptString(cmd, "sourcetype", NULL); + vshCommandOptString(cmd, "driver", &driver); + vshCommandOptString(cmd, "subdriver", &subdriver); + vshCommandOptString(cmd, "type", &type); + vshCommandOptString(cmd, "mode", &mode); + vshCommandOptString(cmd, "sourcetype", &stype); if (!stype) { if (driver && (STREQ(driver, "file") || STREQ(driver, "tap"))) @@ -9104,7 +9037,7 @@ cmdDetachDisk(vshControl *ctl, const vshCmd *cmd) xmlNodePtr cur = NULL; xmlBufferPtr xml_buf = NULL; virDomainPtr dom = NULL; - char *doc, *target; + char *doc, *target = NULL; int i = 0, diff_tgt, ret = FALSE; unsigned int flags; @@ -9114,7 +9047,7 @@ cmdDetachDisk(vshControl *ctl, const vshCmd *cmd) if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) goto cleanup; - if (!(target = vshCommandOptString(cmd, "target", NULL))) + if (vshCommandOptString(cmd, "target", &target) <= 0) goto cleanup; doc = virDomainGetXMLDesc(dom, 0); @@ -9221,8 +9154,7 @@ static const vshCmdOptDef opts_cpu_compare[] = { static int cmdCPUCompare(vshControl *ctl, const vshCmd *cmd) { - char *from; - int found; + char *from = NULL; int ret = TRUE; char *buffer; int result; @@ -9230,8 +9162,7 @@ cmdCPUCompare(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; - from = vshCommandOptString(cmd, "file", &found); - if (!found) + if (vshCommandOptString(cmd, "file", &from) <= 0) return FALSE; if (virFileReadAll(from, VIRSH_MAX_XML_FILE, &buffer) < 0) @@ -9285,8 +9216,7 @@ static const vshCmdOptDef opts_cpu_baseline[] = { static int cmdCPUBaseline(vshControl *ctl, const vshCmd *cmd) { - char *from; - int found; + char *from = NULL; int ret = TRUE; char *buffer; char *result = NULL; @@ -9303,8 +9233,7 @@ cmdCPUBaseline(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; - from = vshCommandOptString(cmd, "file", &found); - if (!found) + if (vshCommandOptString(cmd, "file", &from) <= 0) return FALSE; if (virFileReadAll(from, VIRSH_MAX_XML_FILE, &buffer) < 0) @@ -9516,8 +9445,7 @@ static const vshCmdOptDef opts_cd[] = { static int cmdCd(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED) { - const char *dir; - int found; + const char *dir = NULL; int ret = TRUE; bool dir_malloced = false; @@ -9526,8 +9454,7 @@ cmdCd(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED) return FALSE; } - dir = vshCommandOptString(cmd, "dir", &found); - if (!found) { + if (vshCommandOptString(cmd, "dir", (char**) &dir) == 0) { uid_t uid = geteuid(); dir = virGetUserDirectory(uid); dir_malloced = !!dir; @@ -9830,7 +9757,7 @@ cmdSnapshotCreate(vshControl *ctl, const vshCmd *cmd) { virDomainPtr dom = NULL; int ret = FALSE; - char *from; + char *from = NULL; char *buffer = NULL; virDomainSnapshotPtr snapshot = NULL; xmlDocPtr xml = NULL; @@ -9845,8 +9772,7 @@ cmdSnapshotCreate(vshControl *ctl, const vshCmd *cmd) if (dom == NULL) goto cleanup; - from = vshCommandOptString(cmd, "xmlfile", NULL); - if (from == NULL) + if (vshCommandOptString(cmd, "xmlfile", &from) <= 0) buffer = vshStrdup(ctl, "<domainsnapshot/>"); else { if (virFileReadAll(from, VIRSH_MAX_XML_FILE, &buffer) < 0) { @@ -10103,7 +10029,7 @@ cmdSnapshotDumpXML(vshControl *ctl, const vshCmd *cmd) { virDomainPtr dom = NULL; int ret = FALSE; - char *name; + char *name = NULL; virDomainSnapshotPtr snapshot = NULL; char *xml = NULL; @@ -10114,8 +10040,7 @@ cmdSnapshotDumpXML(vshControl *ctl, const vshCmd *cmd) if (dom == NULL) goto cleanup; - name = vshCommandOptString(cmd, "snapshotname", NULL); - if (name == NULL) + if (vshCommandOptString(cmd, "snapshotname", &name) <= 0) goto cleanup; snapshot = virDomainSnapshotLookupByName(dom, name, 0); @@ -10160,7 +10085,7 @@ cmdDomainSnapshotRevert(vshControl *ctl, const vshCmd *cmd) { virDomainPtr dom = NULL; int ret = FALSE; - char *name; + char *name = NULL; virDomainSnapshotPtr snapshot = NULL; if (!vshConnectionUsability(ctl, ctl->conn)) @@ -10170,8 +10095,7 @@ cmdDomainSnapshotRevert(vshControl *ctl, const vshCmd *cmd) if (dom == NULL) goto cleanup; - name = vshCommandOptString(cmd, "snapshotname", NULL); - if (name == NULL) + if (vshCommandOptString(cmd, "snapshotname", &name) <= 0) goto cleanup; snapshot = virDomainSnapshotLookupByName(dom, name, 0); @@ -10213,7 +10137,7 @@ cmdSnapshotDelete(vshControl *ctl, const vshCmd *cmd) { virDomainPtr dom = NULL; int ret = FALSE; - char *name; + char *name = NULL; virDomainSnapshotPtr snapshot = NULL; unsigned int flags = 0; @@ -10224,8 +10148,7 @@ cmdSnapshotDelete(vshControl *ctl, const vshCmd *cmd) if (dom == NULL) goto cleanup; - name = vshCommandOptString(cmd, "snapshotname", NULL); - if (name == NULL) + if (vshCommandOptString(cmd, "snapshotname", &name) <= 0) goto cleanup; if (vshCommandOptBool(cmd, "children")) @@ -10270,7 +10193,7 @@ cmdQemuMonitorCommand(vshControl *ctl, const vshCmd *cmd) { virDomainPtr dom = NULL; int ret = FALSE; - char *monitor_cmd; + char *monitor_cmd = NULL; char *result = NULL; unsigned int flags = 0; @@ -10281,8 +10204,7 @@ cmdQemuMonitorCommand(vshControl *ctl, const vshCmd *cmd) if (dom == NULL) goto cleanup; - monitor_cmd = vshCommandOptString(cmd, "cmd", NULL); - if (monitor_cmd == NULL) { + if (vshCommandOptString(cmd, "cmd", &monitor_cmd) <= 0) { vshError(ctl, "%s", _("missing monitor command")); goto cleanup; } @@ -10798,83 +10720,103 @@ vshCommandOpt(const vshCmd *cmd, const char *name) } /* - * Returns option as INT + * @cmd command reference + * @name option name + * @value result + * + * Convert option to int + * Return value: + * >0 if option found and valid (@value updated) + * 0 in case option not found (@value untouched) + * <0 in all other cases (@value untouched) */ static int -vshCommandOptInt(const vshCmd *cmd, const char *name, int *found) +vshCommandOptInt(const vshCmd *cmd, const char *name, int *value) { vshCmdOpt *arg = vshCommandOpt(cmd, name); - int res = 0, num_found = FALSE; + int ret = 0, num; char *end_p = NULL; if ((arg != NULL) && (arg->data != NULL)) { - res = strtol(arg->data, &end_p, 10); - if ((arg->data == end_p) || (*end_p!= 0)) - num_found = FALSE; - else - num_found = TRUE; + num = strtol(arg->data, &end_p, 10); + ret = -1; + if ((arg->data != end_p) && (*end_p == 0) && value) { + *value = num; + ret = 1; + } } - if (found) - *found = num_found; - return res; + return ret; } -static unsigned long -vshCommandOptUL(const vshCmd *cmd, const char *name, int *found) +/* + * Convert option to unsigned long + * See vshCommandOptInt() + */ +static int +vshCommandOptUL(const vshCmd *cmd, const char *name, unsigned long *value) { vshCmdOpt *arg = vshCommandOpt(cmd, name); - unsigned long res = 0; - int num_found = FALSE; + int ret = 0; + unsigned long num; char *end_p = NULL; if ((arg != NULL) && (arg->data != NULL)) { - res = strtoul(arg->data, &end_p, 10); - if ((arg->data == end_p) || (*end_p!= 0)) - num_found = FALSE; - else - num_found = TRUE; + num = strtoul(arg->data, &end_p, 10); + ret = -1; + if ((arg->data != end_p) && (*end_p == 0) && value) { + *value = num; + ret = 1; + } } - if (found) - *found = num_found; - return res; + return ret; } /* * Returns option as STRING + * See vshCommandOptInt() */ -static char * -vshCommandOptString(const vshCmd *cmd, const char *name, int *found) +static int +vshCommandOptString(const vshCmd *cmd, const char *name, char **value) { vshCmdOpt *arg = vshCommandOpt(cmd, name); + int ret = 0; + + if (arg && arg->data) { + ret = -1; + if (*arg->data) { + if (value) { + *value = arg->data; + ret = 1; + } + } else if (arg->def && ((arg->def->flag) & VSH_OFLAG_REQ)) { + vshError(NULL, _("Missing required option '%s'"), name); + } + } - if (found) - *found = arg ? TRUE : FALSE; - - if (arg && arg->data && *arg->data) - return arg->data; - - if (arg && arg->def && ((arg->def->flag) & VSH_OFLAG_REQ)) - vshError(NULL, _("Missing required option '%s'"), name); - - return NULL; + return ret; } /* * Returns option as long long */ -static long long -vshCommandOptLongLong(const vshCmd *cmd, const char *name, int *found) +static int +vshCommandOptLongLong(const vshCmd *cmd, const char *name, + unsigned long long *value) { vshCmdOpt *arg = vshCommandOpt(cmd, name); - int num_found = FALSE; - long long res = 0; + int ret = 0; + long long num; char *end_p = NULL; - if ((arg != NULL) && (arg->data != NULL)) - num_found = !virStrToLong_ll(arg->data, &end_p, 10, &res); - if (found) - *found = num_found; - return res; + if ((arg != NULL) && (arg->data != NULL)) { + num = strtoll(arg->data, &end_p, 10); + ret = -1; + if ((arg->data != end_p) && (*end_p == 0) && value) { + *value = num; + ret = 1; + } + } + return ret; } /* @@ -10935,13 +10877,13 @@ vshCommandOptDomainBy(vshControl *ctl, const vshCmd *cmd, char **name, int flag) { virDomainPtr dom = NULL; - char *n; + char *n = NULL; int id; const char *optname = "domain"; if (!cmd_has_option (ctl, cmd, optname)) return NULL; - if (!(n = vshCommandOptString(cmd, optname, NULL))) + if (vshCommandOptString(cmd, optname, &n) <= 0) return NULL; vshDebug(ctl, 5, "%s: found option <%s>: %s\n", @@ -10982,12 +10924,12 @@ vshCommandOptNetworkBy(vshControl *ctl, const vshCmd *cmd, char **name, int flag) { virNetworkPtr network = NULL; - char *n; + char *n = NULL; const char *optname = "network"; if (!cmd_has_option (ctl, cmd, optname)) return NULL; - if (!(n = vshCommandOptString(cmd, optname, NULL))) + if (vshCommandOptString(cmd, optname, &n) <= 0) return NULL; vshDebug(ctl, 5, "%s: found option <%s>: %s\n", @@ -11021,12 +10963,12 @@ vshCommandOptNWFilterBy(vshControl *ctl, const vshCmd *cmd, char **name, int flag) { virNWFilterPtr nwfilter = NULL; - char *n; + char *n = NULL; const char *optname = "nwfilter"; if (!cmd_has_option (ctl, cmd, optname)) return NULL; - if (!(n = vshCommandOptString(cmd, optname, NULL))) + if (vshCommandOptString(cmd, optname, &n) <= 0) return NULL; vshDebug(ctl, 5, "%s: found option <%s>: %s\n", @@ -11059,12 +11001,12 @@ vshCommandOptInterfaceBy(vshControl *ctl, const vshCmd *cmd, char **name, int flag) { virInterfacePtr iface = NULL; - char *n; + char *n = NULL; const char *optname = "interface"; if (!cmd_has_option (ctl, cmd, optname)) return NULL; - if (!(n = vshCommandOptString(cmd, optname, NULL))) + if (vshCommandOptString(cmd, optname, &n) <= 0) return NULL; vshDebug(ctl, 5, "%s: found option <%s>: %s\n", @@ -11097,9 +11039,9 @@ vshCommandOptPoolBy(vshControl *ctl, const vshCmd *cmd, const char *optname, char **name, int flag) { virStoragePoolPtr pool = NULL; - char *n; + char *n = NULL; - if (!(n = vshCommandOptString(cmd, optname, NULL))) + if (vshCommandOptString(cmd, optname, &n) <= 0) return NULL; vshDebug(ctl, 5, "%s: found option <%s>: %s\n", @@ -11135,13 +11077,12 @@ vshCommandOptVolBy(vshControl *ctl, const vshCmd *cmd, { virStorageVolPtr vol = NULL; virStoragePoolPtr pool = NULL; - char *n, *p; - int found; + char *n = NULL, *p = NULL; - if (!(n = vshCommandOptString(cmd, optname, NULL))) + if (vshCommandOptString(cmd, optname, &n) <= 0) return NULL; - if (!(p = vshCommandOptString(cmd, pooloptname, &found)) && found) + if ( vshCommandOptString(cmd, pooloptname, &p) < 0) return NULL; if (p) @@ -11185,14 +11126,13 @@ static virSecretPtr vshCommandOptSecret(vshControl *ctl, const vshCmd *cmd, char **name) { virSecretPtr secret = NULL; - char *n; + char *n = NULL; const char *optname = "secret"; if (!cmd_has_option (ctl, cmd, optname)) return NULL; - n = vshCommandOptString(cmd, optname, NULL); - if (n == NULL) + if (vshCommandOptString(cmd, optname, &n) <= 0) return NULL; vshDebug(ctl, 5, "%s: found option <%s>: %s\n", cmd->def->name, optname, n); -- 1.7.4

2 1

[libvirt] [PATCH 1/2] rename qemuDomainDetachSCSIDiskDevice to qemuDomainDetachDiskDevice
by Wen Congyang 07 Mar '11

07 Mar '11

The way to detach a USB disk is the same as that to detach a SCSI disk. Rename this function and we can use it to detach a USB disk. Signed-off-by: Wen Congyang <wency(a)cn.fujitsu.com> --- src/qemu/qemu_driver.c | 3 +-- src/qemu/qemu_hotplug.c | 13 +++++++------ src/qemu/qemu_hotplug.h | 8 ++++---- 3 files changed, 12 insertions(+), 12 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 0e891e8..f4e52b1 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -4281,8 +4281,7 @@ static int qemudDomainDetachDevice(virDomainPtr dom, ret = qemuDomainDetachPciDiskDevice(driver, vm, dev, qemuCaps); } else if (dev->data.disk->bus == VIR_DOMAIN_DISK_BUS_SCSI) { - ret = qemuDomainDetachSCSIDiskDevice(driver, vm, dev, - qemuCaps); + ret = qemuDomainDetachDiskDevice(driver, vm, dev, qemuCaps); } else { qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c index da07c29..0b822bf 100644 --- a/src/qemu/qemu_hotplug.c +++ b/src/qemu/qemu_hotplug.c @@ -1221,10 +1221,10 @@ cleanup: return ret; } -int qemuDomainDetachSCSIDiskDevice(struct qemud_driver *driver, - virDomainObjPtr vm, - virDomainDeviceDefPtr dev, - virBitmapPtr qemuCaps) +int qemuDomainDetachDiskDevice(struct qemud_driver *driver, + virDomainObjPtr vm, + virDomainDeviceDefPtr dev, + virBitmapPtr qemuCaps) { int i, ret = -1; virDomainDiskDefPtr detach = NULL; @@ -1241,8 +1241,9 @@ int qemuDomainDetachSCSIDiskDevice(struct qemud_driver *driver, } if (!qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE)) { - qemuReportError(VIR_ERR_OPERATION_FAILED, "%s", - _("Underlying qemu does not support SCSI disk removal")); + qemuReportError(VIR_ERR_OPERATION_FAILED, + _("Underlying qemu does not support %s disk removal"), + virDomainDiskBusTypeToString(dev->data.disk->bus)); goto cleanup; } diff --git a/src/qemu/qemu_hotplug.h b/src/qemu/qemu_hotplug.h index c84d496..db3970c 100644 --- a/src/qemu/qemu_hotplug.h +++ b/src/qemu/qemu_hotplug.h @@ -77,10 +77,10 @@ int qemuDomainDetachPciDiskDevice(struct qemud_driver *driver, virDomainObjPtr vm, virDomainDeviceDefPtr dev, virBitmapPtr qemuCaps); -int qemuDomainDetachSCSIDiskDevice(struct qemud_driver *driver, - virDomainObjPtr vm, - virDomainDeviceDefPtr dev, - virBitmapPtr qemuCaps); +int qemuDomainDetachDiskDevice(struct qemud_driver *driver, + virDomainObjPtr vm, + virDomainDeviceDefPtr dev, + virBitmapPtr qemuCaps); int qemuDomainDetachPciControllerDevice(struct qemud_driver *driver, virDomainObjPtr vm, virDomainDeviceDefPtr dev, -- 1.7.1

3 4

[libvirt] [PATCH] qemu_hotplug: Reword error if spice password change not available
by Cole Robinson 07 Mar '11

07 Mar '11

Currently it sounds like spice is completely unsupported, which is confusing. --- src/qemu/qemu_hotplug.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c index da07c29..25d2dd9 100644 --- a/src/qemu/qemu_hotplug.c +++ b/src/qemu/qemu_hotplug.c @@ -1795,7 +1795,7 @@ qemuDomainChangeGraphicsPasswords(struct qemud_driver *driver, if (ret == -2) { if (type != VIR_DOMAIN_GRAPHICS_TYPE_VNC) { qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s", - _("Only VNC graphics are supported")); + _("Graphics password only supported for VNC")); ret = -1; } else { ret = qemuMonitorSetVNCPassword(priv->mon, -- 1.7.4

2 2

[libvirt] [PATCH] unlock eventLoop before calling callback function
by Wen Congyang 07 Mar '11

07 Mar '11

When I use newest libvirt to save a domain, libvirtd will be deadlock. Here is the output of gdb: (gdb) thread 3 [Switching to thread 3 (Thread 0x7f972a1fc710 (LWP 30265))]#0 0x000000351fe0e034 in __lll_lock_wait () from /lib64/libpthread.so.0 (gdb) bt #0 0x000000351fe0e034 in __lll_lock_wait () from /lib64/libpthread.so.0 #1 0x000000351fe09345 in _L_lock_870 () from /lib64/libpthread.so.0 #2 0x000000351fe09217 in pthread_mutex_lock () from /lib64/libpthread.so.0 #3 0x00007f9737b0e663 in virMutexLock (m=0x6fdd60) at util/threads-pthread.c:80 #4 0x000000000041853d in virEventUpdateTimeoutImpl (timer=12, frequency=0) at event.c:247 #5 0x00007f9737af8ac2 in virEventUpdateTimeout (timer=12, timeout=0) at util/event.c:70 #6 0x000000000046654e in qemuDomainEventQueue (driver=0x19c5440, event=0x7f9724005f80) at qemu/qemu_domain.c:97 #7 0x000000000044184a in qemudDomainSaveFlag (driver=0x19c5440, dom=0x7f9724000970, vm=0x1a63ac0, path=0x7f9724000940 "/var/lib/libvirt/images/memory.save", compressed=0) at qemu/qemu_driver.c:2074 #8 0x0000000000441b30 in qemudDomainSave (dom=0x7f9724000970, path=0x7f9724000940 "/var/lib/libvirt/images/memory.save") at qemu/qemu_driver.c:2137 #9 0x00007f9737b66d7d in virDomainSave (domain=0x7f9724000970, to=0x7f9724000940 "/var/lib/libvirt/images/memory.save") at libvirt.c:2280 #10 0x00000000004273e6 in remoteDispatchDomainSave (server=0x19ac120, client=0x7f972c081740, conn=0x7f9720000b40, hdr=0x7f972c041250, rerr=0x7f972a1fbb40, args=0x7f972a1fbc40, ret=0x7f972a1fbbe0) at remote.c:2273 #11 0x0000000000431b6f in remoteDispatchClientCall (server=0x19ac120, client=0x7f972c081740, msg=0x7f972c001240, qemu_protocol=false) at dispatch.c:529 #12 0x00000000004316fe in remoteDispatchClientRequest (server=0x19ac120, client=0x7f972c081740, msg=0x7f972c001240) at dispatch.c:407 #13 0x000000000041d9a2 in qemudWorker (data=0x7f972c000908) at libvirtd.c:1629 #14 0x000000351fe077e1 in start_thread () from /lib64/libpthread.so.0 #15 0x000000351f2e153d in clone () from /lib64/libc.so.6 (gdb) thread 7 [Switching to thread 7 (Thread 0x7f9730bcd710 (LWP 30261))]#0 0x000000351fe0e034 in __lll_lock_wait () from /lib64/libpthread.so.0 (gdb) bt #0 0x000000351fe0e034 in __lll_lock_wait () from /lib64/libpthread.so.0 #1 0x000000351fe09345 in _L_lock_870 () from /lib64/libpthread.so.0 #2 0x000000351fe09217 in pthread_mutex_lock () from /lib64/libpthread.so.0 #3 0x00007f9737b0e663 in virMutexLock (m=0x1a63ac0) at util/threads-pthread.c:80 #4 0x00007f9737b32cb8 in virDomainObjLock (obj=0x1a63ac0) at conf/domain_conf.c:8447 #5 0x00000000004732d2 in qemuProcessHandleMonitorDestroy (mon=0x7f9718002610, vm=0x1a63ac0) at qemu/qemu_process.c:599 #6 0x000000000047c05b in qemuMonitorFree (mon=0x7f9718002610) at qemu/qemu_monitor.c:209 #7 0x000000000047c0f9 in qemuMonitorUnref (mon=0x7f9718002610) at qemu/qemu_monitor.c:229 #8 0x000000000047c135 in qemuMonitorUnwatch (monitor=0x7f9718002610) at qemu/qemu_monitor.c:242 #9 0x00000000004194b4 in virEventCleanupHandles () at event.c:538 #10 0x00000000004197a4 in virEventRunOnce () at event.c:603 #11 0x000000000041f0bd in qemudOneLoop () at libvirtd.c:2285 #12 0x000000000041f5e9 in qemudRunLoop (opaque=0x19ac120) at libvirtd.c:2395 #13 0x000000351fe077e1 in start_thread () from /lib64/libpthread.so.0 #14 0x000000351f2e153d in clone () from /lib64/libc.so.6 (gdb) p *(virMutexPtr)0x6fdd60 $2 = {lock = {__data = {__lock = 2, __count = 0, __owner = 30261, __nusers = 1, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = "\002\000\000\000\000\000\000\000\065v\000\000\001", '\000' <repeats 26 times>, __align = 2}} (gdb) p *(virMutexPtr)0x1a63ac0 $3 = {lock = {__data = {__lock = 2, __count = 0, __owner = 30265, __nusers = 1, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = "\002\000\000\000\000\000\000\000\071v\000\000\001", '\000' <repeats 26 times>, __align = 2}} (gdb) info threads 7 Thread 0x7f9730bcd710 (LWP 30261) 0x000000351fe0e034 in __lll_lock_wait () from /lib64/libpthread.so.0 6 Thread 0x7f972bfff710 (LWP 30262) 0x000000351fe0b43c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 5 Thread 0x7f972b5fe710 (LWP 30263) 0x000000351fe0b43c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 4 Thread 0x7f972abfd710 (LWP 30264) 0x000000351fe0b43c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 * 3 Thread 0x7f972a1fc710 (LWP 30265) 0x000000351fe0e034 in __lll_lock_wait () from /lib64/libpthread.so.0 2 Thread 0x7f97297fb710 (LWP 30266) 0x000000351fe0b43c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 1 Thread 0x7f9737aac800 (LWP 30260) 0x000000351fe0803d in pthread_join () from /lib64/libpthread.so.0 The reason is that we will try to lock some object in callback function, and we may call event API with locking the same object. In the function virEventDispatchHandles(), we unlock eventLoop before calling callback function. I think we should do the same thing in the function virEventCleanupTimeouts() and virEventCleanupHandles(). Signed-off-by: Wen Congyang <wency(a)cn.fujitsu.com> --- daemon/event.c | 10 ++++++++-- 1 files changed, 8 insertions(+), 2 deletions(-) diff --git a/daemon/event.c b/daemon/event.c index 1a31717..0d45014 100644 --- a/daemon/event.c +++ b/daemon/event.c @@ -493,8 +493,11 @@ static int virEventCleanupTimeouts(void) { EVENT_DEBUG("Purging timeout %d with id %d", i, eventLoop.timeouts[i].timer); - if (eventLoop.timeouts[i].ff) + if (eventLoop.timeouts[i].ff) { + virMutexUnlock(&eventLoop.lock); (eventLoop.timeouts[i].ff)(eventLoop.timeouts[i].opaque); + virMutexLock(&eventLoop.lock); + } if ((i+1) < eventLoop.timeoutsCount) { memmove(eventLoop.timeouts+i, @@ -534,8 +537,11 @@ static int virEventCleanupHandles(void) { continue; } - if (eventLoop.handles[i].ff) + if (eventLoop.handles[i].ff) { + virMutexUnlock(&eventLoop.lock); (eventLoop.handles[i].ff)(eventLoop.handles[i].opaque); + virMutexLock(&eventLoop.lock); + } if ((i+1) < eventLoop.handlesCount) { memmove(eventLoop.handles+i, -- 1.7.1

5 10

[libvirt] [PATCH 0/2] qemu: Fix DomainObj refcounting/hashtable races
by Laine Stump 07 Mar '11

07 Mar '11

Both of these bugs were found while looking for the cause of: https://bugzilla.redhat.com/show_bug.cgi?id=670848 The end-result of that bug was a crash due to an attempt to double-free a virDomainObj. Both of these could have contributed to that crash. There *may* be other places where virDomainRemoveInactive is called without having the driverlock (eg - the error handling of qemuProcessReconnect??), but they can be looked at later; the occurence fixed here is almost certainly part of the cause of the crash in Bug 670848. Note that these bugs showed up when testing transient domains, which seem to be used relatively less often than persistent domains, but which put more stress on all of the code that adds and removes virDomainObjs (if a domain is persistent, its virDomainObj is created when libvirtd starts, and its virDomainObj remains alive until libvirtd is terminated, but a transient domain's virDomainObj dies when the domain is shutdown.) It would probably be a good idea to add some transient domain stress testing to the libvirt-tck.

3 15

[libvirt] [PATCH 0/6 v2] Allow debug dump in case of crashes
by Daniel Veillard 07 Mar '11

07 Mar '11

Changes in v2 based on danpb feedback: - make libvirtd.log the default instead of syslog - do not open the libvirtd.log directly - create a new API to dump debug buffer to file output - use that new API now in the fatal signal handler This patch set main goal is to allow dumping of full debug informations for operations occuring in libvirt daemon before a crash. The principle is to save all logs to a round-robbin memory buffer (which we already do, except we never use that buffer), save the general daemon logs to a libvirtd.log file and upon reception of a fatal signal, save the memory buffer directly to the log file(s) or stderr. There is quite a few remarks about this, we already have that buffer but we don't log everything in, only what's output, that's what patch 1 changes, then we need to provide a function to dump it in emergency from signal handler so this also adds a new API for it. We also need to be cautious about what system call we operate from the signal handler, but basically we should limit ourselves here to write and sigaction which are safe there dixit POSIX. Something like killall -USR2 libvirtd allows to see the kind of output one get, an idle libvirtd is quiet, but handle/timer/fdpolls tend to be very verbose, Maybe now that this part is well debugged some of those could be suppressed or commented off. Also the buffer is a statically allocated 64KB, this should be made more flexible based on a configuration entry but it's left for another patch. Daniel

3 26

[libvirt] qemuDomainMonitorCommand
by Anthony Liguori 07 Mar '11

07 Mar '11

Hi, I've been looking at the qemuDomainMonitorCommand interface and I see a few issues with it. The current interface can take a JSON string and return a JSON string but it only works for successful commands. I'd like to hook this interface up to libqmp but it would mean dropping all of the error messages. Errors are extremely important because certain workflows require parsing specific error output (like changing a device with an encrypted disk) in the normal execution path. Additionally, there's no way to get QMP events. With QMP events, it's important to expose the timestamp and tag fields too. Is there a reason the raw QMP session wasn't exposed? With registered events, we should be able to distinguish events meant for libvirt with events registered by QMP passthrough so perhaps we can also expose events in a new interface? Regards, Anthony Liguori

2 1

[libvirt] Next release schedule
by Daniel Veillard 07 Mar '11

07 Mar '11

So the goal is to get a release by the end of the month. I usually try to push those on Friday, but somehow I would feel better to avoid April 1st espcially as we try to make a 0.9.0 release :-) Let's try to start the freeze on Thu 24, to get a release one week later on March 31, so this means we have 2.5 weeks to push new features in for 0.9.0, Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel(a)veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/

1 0

[libvirt] [PATCHv3 00/10] outgoing migration via fd: rather than exec:
by Eric Blake 04 Mar '11

04 Mar '11

Still not quite complete (I need to hook up compression to benefit from fd:), but in much better shape (this series could be applied as-is, if it receives ACKs, and I can do the compression improvements separately). Changes in v3: add lots of intermediate patches, to make fd passing much easier. Eric Blake (10): qemu: use lighter-weight fd:n on incoming tunneled migration qemu: support migration to fd util: use SCM_RIGHTS in virFileOperation when needed qemu: allow simple domain save to use fd: protocol qemu: simplify domain save fd handling storage: simplify fd handling util: rename virFileOperation to virFileOpenAs util: adjust indentation in previous patch qemu, storage: improve type safety qemu: improve efficiency of dd during snapshots src/libvirt_private.syms | 2 +- src/qemu/qemu_driver.c | 105 ++++++++++++++------------- src/qemu/qemu_migration.c | 45 ++++-------- src/qemu/qemu_monitor.c | 22 ++++++ src/qemu/qemu_monitor.h | 4 + src/qemu/qemu_monitor_json.c | 24 ++++++- src/qemu/qemu_monitor_json.h | 6 ++- src/qemu/qemu_monitor_text.c | 27 ++++++- src/qemu/qemu_monitor_text.h | 6 ++- src/storage/storage_backend.c | 77 ++++++++++---------- src/util/util.c | 161 ++++++++++++++++++++++++++++------------- src/util/util.h | 15 ++-- 12 files changed, 310 insertions(+), 184 deletions(-) -- 1.7.4

2 16

[libvirt] [PATCH 1/2] virsh: Change integer option parsing functions to return tri-state information.
by Michal Privoznik 04 Mar '11

04 Mar '11

This is needed to detect situations when optional argument was specified with non-integer value: '--int-opt foo'. --- tools/virsh.c | 46 +++++++++++++++++++++++++++------------------- 1 files changed, 27 insertions(+), 19 deletions(-) diff --git a/tools/virsh.c b/tools/virsh.c index 62fca17..e5093a2 100644 --- a/tools/virsh.c +++ b/tools/virsh.c @@ -252,13 +252,14 @@ static const vshCmdGrp *vshCmdGrpSearch(const char *grpname); static int vshCmdGrpHelp(vshControl *ctl, const char *name); static vshCmdOpt *vshCommandOpt(const vshCmd *cmd, const char *name); -static int vshCommandOptInt(const vshCmd *cmd, const char *name, int *found); +static int vshCommandOptInt(const vshCmd *cmd, const char *name, int *found, + int *opt_found); static unsigned long vshCommandOptUL(const vshCmd *cmd, const char *name, - int *found); + int *found, int *opt_found); static char *vshCommandOptString(const vshCmd *cmd, const char *name, int *found); static long long vshCommandOptLongLong(const vshCmd *cmd, const char *name, - int *found); + int *found, int *opt_found); static int vshCommandOptBool(const vshCmd *cmd, const char *name); static char *vshCommandOptArgv(const vshCmd *cmd, int count); @@ -1602,7 +1603,7 @@ cmdSchedInfoUpdate(vshControl *ctl, const vshCmd *cmd, param->type == VIR_DOMAIN_SCHED_FIELD_UINT && vshCommandOptBool(cmd, "weight")) { int val; - val = vshCommandOptInt(cmd, "weight", &found); + val = vshCommandOptInt(cmd, "weight", &found, NULL); if (!found) { vshError(ctl, "%s", _("Invalid value of weight")); return -1; @@ -1617,7 +1618,7 @@ cmdSchedInfoUpdate(vshControl *ctl, const vshCmd *cmd, param->type == VIR_DOMAIN_SCHED_FIELD_UINT && vshCommandOptBool(cmd, "cap")) { int val; - val = vshCommandOptInt(cmd, "cap", &found); + val = vshCommandOptInt(cmd, "cap", &found, NULL); if (!found) { vshError(ctl, "%s", _("Invalid value of cap")); return -1; @@ -2300,7 +2301,7 @@ cmdFreecell(vshControl *ctl, const vshCmd *cmd) if (!vshConnectionUsability(ctl, ctl->conn)) return FALSE; - cell = vshCommandOptInt(cmd, "cellno", &cell_given); + cell = vshCommandOptInt(cmd, "cellno", &cell_given, NULL); all_given = vshCommandOptBool(cmd, "all"); if (all_given && cell_given) { @@ -2726,7 +2727,7 @@ cmdVcpupin(vshControl *ctl, const vshCmd *cmd) if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; - vcpu = vshCommandOptInt(cmd, "vcpu", &vcpufound); + vcpu = vshCommandOptInt(cmd, "vcpu", &vcpufound, NULL); if (!vcpufound) { vshError(ctl, "%s", _("vcpupin: Invalid or missing vCPU number.")); virDomainFree(dom); @@ -2862,7 +2863,7 @@ cmdSetvcpus(vshControl *ctl, const vshCmd *cmd) if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; - count = vshCommandOptInt(cmd, "count", &count); + count = vshCommandOptInt(cmd, "count", &count, NULL); if (!flags) { if (virDomainSetVcpus(dom, count) != 0) { @@ -2927,7 +2928,7 @@ cmdSetmem(vshControl *ctl, const vshCmd *cmd) if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; - kilobytes = vshCommandOptUL(cmd, "kilobytes", NULL); + kilobytes = vshCommandOptUL(cmd, "kilobytes", NULL, NULL); if (kilobytes <= 0) { virDomainFree(dom); vshError(ctl, _("Invalid value of %lu for memory size"), kilobytes); @@ -2984,7 +2985,7 @@ cmdSetmaxmem(vshControl *ctl, const vshCmd *cmd) if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; - kilobytes = vshCommandOptInt(cmd, "kilobytes", &kilobytes); + kilobytes = vshCommandOptInt(cmd, "kilobytes", &kilobytes, NULL); if (kilobytes <= 0) { virDomainFree(dom); vshError(ctl, _("Invalid value of %d for memory size"), kilobytes); @@ -3056,22 +3057,22 @@ cmdMemtune(vshControl * ctl, const vshCmd * cmd) return FALSE; hard_limit = - vshCommandOptLongLong(cmd, "hard-limit", NULL); + vshCommandOptLongLong(cmd, "hard-limit", NULL, NULL); if (hard_limit) nparams++; soft_limit = - vshCommandOptLongLong(cmd, "soft-limit", NULL); + vshCommandOptLongLong(cmd, "soft-limit", NULL, NULL); if (soft_limit) nparams++; swap_hard_limit = - vshCommandOptLongLong(cmd, "swap-hard-limit", NULL); + vshCommandOptLongLong(cmd, "swap-hard-limit", NULL, NULL); if (swap_hard_limit) nparams++; min_guarantee = - vshCommandOptLongLong(cmd, "min-guarantee", NULL); + vshCommandOptLongLong(cmd, "min-guarantee", NULL, NULL); if (min_guarantee) nparams++; @@ -3670,7 +3671,7 @@ cmdMigrate (vshControl *ctl, const vshCmd *cmd) if (vshCommandOptBool (cmd, "live")) live_flag = TRUE; - timeout = vshCommandOptInt(cmd, "timeout", &found); + timeout = vshCommandOptInt(cmd, "timeout", &found, NULL); if (found) { if (! live_flag) { vshError(ctl, "%s", _("migrate: Unexpected timeout for offline migration")); @@ -3807,7 +3808,7 @@ cmdMigrateSetMaxDowntime(vshControl *ctl, const vshCmd *cmd) if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return FALSE; - downtime = vshCommandOptLongLong(cmd, "downtime", &found); + downtime = vshCommandOptLongLong(cmd, "downtime", &found, NULL); if (!found || downtime < 1) { vshError(ctl, "%s", _("migrate: Invalid downtime")); goto done; @@ -10796,7 +10797,7 @@ vshCommandOpt(const vshCmd *cmd, const char *name) * Returns option as INT */ static int -vshCommandOptInt(const vshCmd *cmd, const char *name, int *found) +vshCommandOptInt(const vshCmd *cmd, const char *name, int *found, int *opt_found) { vshCmdOpt *arg = vshCommandOpt(cmd, name); int res = 0, num_found = FALSE; @@ -10811,11 +10812,13 @@ vshCommandOptInt(const vshCmd *cmd, const char *name, int *found) } if (found) *found = num_found; + if (opt_found) + *opt_found = arg ? TRUE : FALSE; return res; } static unsigned long -vshCommandOptUL(const vshCmd *cmd, const char *name, int *found) +vshCommandOptUL(const vshCmd *cmd, const char *name, int *found, int *opt_found) { vshCmdOpt *arg = vshCommandOpt(cmd, name); unsigned long res = 0; @@ -10831,6 +10834,8 @@ vshCommandOptUL(const vshCmd *cmd, const char *name, int *found) } if (found) *found = num_found; + if (opt_found) + *opt_found = arg ? TRUE : FALSE; return res; } @@ -10858,7 +10863,8 @@ vshCommandOptString(const vshCmd *cmd, const char *name, int *found) * Returns option as long long */ static long long -vshCommandOptLongLong(const vshCmd *cmd, const char *name, int *found) +vshCommandOptLongLong(const vshCmd *cmd, const char *name, int *found, + int *opt_found) { vshCmdOpt *arg = vshCommandOpt(cmd, name); int num_found = FALSE; @@ -10869,6 +10875,8 @@ vshCommandOptLongLong(const vshCmd *cmd, const char *name, int *found) num_found = !virStrToLong_ll(arg->data, &end_p, 10, &res); if (found) *found = num_found; + if (opt_found) + *opt_found = arg ? TRUE : FALSE; return res; } -- 1.7.4

2 2

[libvirt] Fixes for several memory leaks
by Phil Petty (phpetty) 04 Mar '11

04 Mar '11

Index: libvirt/src/conf/secret_conf.c =================================================================== *************** *** 154,160 **** _("invalid value of 'private'")); goto cleanup; } - VIR_FREE(prop); } uuidstr = virXPathString("string(./uuid)", ctxt); --- 154,159 ---- *************** *** 170,176 **** "%s", _("malformed uuid element")); goto cleanup; } - VIR_FREE(uuidstr); } def->description = virXPathString("string(./description)", ctxt); --- 169,174 ---- *************** *** 181,187 **** def = NULL; cleanup: ! VIR_FREE(prop); virSecretDefFree(def); xmlXPathFreeContext(ctxt); return ret; --- 179,190 ---- def = NULL; cleanup: ! if (prop) { ! VIR_FREE(prop); ! } ! if (uuidstr) { ! VIR_FREE(uuidstr); ! } virSecretDefFree(def); xmlXPathFreeContext(ctxt); return ret; Index: libvirt/src/nwfilter/nwfilter_gentech_driver.c =================================================================== *************** *** 662,673 **** } virNWFilterUnlockIface(ifname); - - VIR_FREE(ptrs); } err_exit: virNWFilterUnlockFilterUpdates(); for (j = 0; j < nEntries; j++) --- 662,675 ---- } virNWFilterUnlockIface(ifname); } err_exit: + if (ptrs) { + VIR_FREE(ptrs); + } + virNWFilterUnlockFilterUpdates(); for (j = 0; j < nEntries; j++) Index: libvirt/src/remote/remote_driver.c =================================================================== *************** *** 474,495 **** --- 474,510 ---- for (i = 0; i < vars->n; i++) { var = &vars->p[i]; if (STRCASEEQ (var->name, "name")) { + if (name) { + VIR_FREE(name); + } name = strdup (var->value); if (!name) goto out_of_memory; var->ignore = 1; } else if (STRCASEEQ (var->name, "command")) { + if (command) { + VIR_FREE(command); + } command = strdup (var->value); if (!command) goto out_of_memory; var->ignore = 1; } else if (STRCASEEQ (var->name, "socket")) { + if (sockname) { + VIR_FREE(sockname); + } sockname = strdup (var->value); if (!sockname) goto out_of_memory; var->ignore = 1; } else if (STRCASEEQ (var->name, "auth")) { + if (authtype) { + VIR_FREE(authtype); + } authtype = strdup (var->value); if (!authtype) goto out_of_memory; var->ignore = 1; } else if (STRCASEEQ (var->name, "netcat")) { + if (netcat) { + VIR_FREE(netcat); + } netcat = strdup (var->value); if (!netcat) goto out_of_memory; var->ignore = 1; Index: libvirt/src/util/conf.c =================================================================== *************** *** 651,656 **** --- 651,657 ---- SKIP_BLANKS; if (CUR != '=') { virConfError(ctxt, VIR_ERR_CONF_SYNTAX, _("expecting an assignment")); + VIR_FREE(name); return(-1); } NEXT; Index: libvirt/src/util/storage_file.c =================================================================== *************** *** 742,747 **** --- 742,748 ---- if (format < 0 || format >= VIR_STORAGE_FILE_LAST) { virReportSystemError(EINVAL, _("unknown storage file format %d"), format); + VIR_FREE(head); return -1; } Index: libvirt/src/util/xml.c =================================================================== *************** *** 107,113 **** virXMLError(VIR_ERR_INTERNAL_ERROR, _("\'%s\' value longer than %Zd bytes in virXPathStringLimit()"), xpath, maxlen); ! return NULL; } return tmp; --- 107,114 ---- virXMLError(VIR_ERR_INTERNAL_ERROR, _("\'%s\' value longer than %Zd bytes in virXPathStringLimit()"), xpath, maxlen); ! VIR_FREE(tmp); ! return NULL; } return tmp; Index: libvirt/tools/virsh.c =================================================================== *************** *** 8697,8702 **** --- 8697,8703 ---- { const char *dir; int found; + int dir_root = FALSE; if (!ctl->imode) { vshError(ctl, "%s", _("cd: command valid only in interactive mode")); *************** *** 8708,8721 **** uid_t uid = geteuid(); dir = virGetUserDirectory(uid); } ! if (!dir) dir = "/"; if (chdir (dir) == -1) { vshError(ctl, _("cd: %s: %s"), strerror(errno), dir); return FALSE; } return TRUE; } --- 8709,8730 ---- uid_t uid = geteuid(); dir = virGetUserDirectory(uid); } ! if (!dir) { dir = "/"; + dir_root = TRUE; + } if (chdir (dir) == -1) { vshError(ctl, _("cd: %s: %s"), strerror(errno), dir); + if (!dir_root) { + VIR_FREE(dir); + } return FALSE; } + if (!dir_root) { + VIR_FREE(dir); + } return TRUE; } Kind regards, Phil Petty

2 1

[libvirt] Network Filter not working on RHEL-6
by Shi Jin 04 Mar '11

04 Mar '11

Hi there, I have been testing the Network Filter [1] feature of libvirt with KVM on RHEL-5.6 and RHEL-6. On RHEL-5.6, it works well except the $IP variable is not supported thus cannot use the clean-filter. The major problem I found on RHEL-6 is that the iptables rules introduced by nwfilter does not prevent any traffic. The problem is that all traffic going to the VM virtual NIC interface goes through the INPUT chain of the iptables instead of the supposed-to-be FORWARD chain (this is what the nwfilter rules are working on) so that none of the rules have any effect. I am not sure whether this is a libvirt problem or iptables problem. But it seems to me that changing from RHEL-5.6 to RHEL-6, the network traffic works differently. Has anyone had similar experience? Any suggestion or comments are welcome. Thank you very much. Shi [1] http://libvirt.org/formatnwfilter.html -- Shi Jin, PhD

4 5

[libvirt] [PATCH] qemu: Support vram for video of qxl type
by Osier Yang 04 Mar '11

04 Mar '11

For qemu names the primary vga as "qxl-vga": 1) if vram is specified for 2nd qxl device: -vga qxl -global qxl-vga.vram_size=$SIZE \ -device qxl,id=video1,vram_size=$SIZE,... 2) if vram is not specified for 2nd qxl device, (use the default set by global): -vga qxl -global qxl-vga.vram_size=$SIZE \ -device qxl,id=video1,... For qemu names all qxl devices as "qxl": 1) if vram is specified for 2nd qxl device: -vga qxl -global qxl.vram_size=$SIZE \ -device qxl,id=video1,vram_size=$SIZE ... 2) if vram is not specified for 2nd qxl device: -vga qxl -global qxl-vga.vram_size=$SIZE \ -device qxl,id=video1,... "-global" is the only way to define vram_size for the primary qxl device, regardless of how qemu names it, (It's not good a good way, as original idea of "-global" is to set a global default for a driver property, but to specify vram for first qxl device, we have to use it). For other qxl devices, as they are represented by "-device", could specify it directly and seperately for each, and it overrides the default set by "-global" if specified. --- src/qemu/qemu_capabilities.c | 2 + src/qemu/qemu_capabilities.h | 1 + src/qemu/qemu_command.c | 16 +++++++++ tests/qemuhelptest.c | 1 + .../qemuxml2argv-graphics-spice-qxl-vga.args | 7 ++++ .../qemuxml2argv-graphics-spice-qxl-vga.xml | 36 ++++++++++++++++++++ .../qemuxml2argv-graphics-spice.args | 4 +- tests/qemuxml2argvtest.c | 4 ++ tests/qemuxml2xmltest.c | 1 + 9 files changed, 70 insertions(+), 2 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.xml diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index 5f08a20..cce6b5f 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -1118,6 +1118,8 @@ qemuCapsParseDeviceStr(const char *str, unsigned long long *flags) } if (strstr(str, "virtio-net-pci.tx=")) *flags |= QEMUD_CMD_FLAG_VIRTIO_TX_ALG; + if (strstr(str, "name \"qxl-vga\"")) + *flags |= QEMUD_CMD_FLAG_DEVICE_QXL_VGA; return 0; } diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h index 63cbbb3..f36c3ab 100644 --- a/src/qemu/qemu_capabilities.h +++ b/src/qemu/qemu_capabilities.h @@ -93,6 +93,7 @@ enum qemuCapsFlags { QEMUD_CMD_FLAG_CHARDEV_SPICEVMC = (1LL << 56), /* newer -chardev spicevmc */ QEMUD_CMD_FLAG_DEVICE_SPICEVMC = (1LL << 57), /* older -device spicevmc*/ QEMUD_CMD_FLAG_VIRTIO_TX_ALG = (1LL << 58), /* -device virtio-net-pci,tx=string */ + QEMUD_CMD_FLAG_DEVICE_QXL_VGA = (1LL << 59), /* Is the primary and vga compatible qxl device named qxl-vga? */ }; virCapsPtr qemuCapsInit(virCapsPtr old_caps); diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 0db2843..c0bc343 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -1928,6 +1928,10 @@ qemuBuildVideoDevStr(virDomainVideoDefPtr video, virBufferVSprintf(&buf, "%s", model); virBufferVSprintf(&buf, ",id=%s", video->info.alias); + + if (video->type == VIR_DOMAIN_VIDEO_TYPE_QXL && video->vram) + virBufferVSprintf(&buf, ",vram_size=%u", video->vram); + if (qemuBuildDeviceAddressStr(&buf, &video->info, qemuCmdFlags) < 0) goto error; @@ -4023,6 +4027,18 @@ qemuBuildCommandLine(virConnectPtr conn, } virCommandAddArgList(cmd, "-vga", vgastr, NULL); + + if (def->videos[0]->type == VIR_DOMAIN_VIDEO_TYPE_QXL) { + if (def->videos[0]->vram && + (qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE)) { + if (qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE_QXL_VGA) + virCommandAddArgFormat(cmd, "-global qxl-vga.vram_size=%u", + def->videos[0]->vram); + else + virCommandAddArgFormat(cmd, "-global qxl.vram_size=%u", + def->videos[0]->vram); + } + } } } else { diff --git a/tests/qemuhelptest.c b/tests/qemuhelptest.c index 11890ab..202888d 100644 --- a/tests/qemuhelptest.c +++ b/tests/qemuhelptest.c @@ -481,6 +481,7 @@ mymain(int argc, char **argv) QEMUD_CMD_FLAG_DRIVE_AIO | QEMUD_CMD_FLAG_CCID_PASSTHRU | QEMUD_CMD_FLAG_CHARDEV_SPICEVMC | + QEMUD_CMD_FLAG_DEVICE_QXL_VGA | QEMUD_CMD_FLAG_VIRTIO_TX_ALG, 12001, 1, 0); diff --git a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.args b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.args new file mode 100644 index 0000000..efc51d1 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.args @@ -0,0 +1,7 @@ +LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test QEMU_AUDIO_DRV=spice \ +/usr/bin/qemu -S -M pc -m 214 -smp 1 -nodefaults -monitor \ +unix:/tmp/test-monitor,server,nowait -no-acpi -boot c -hda \ +/dev/HostVG/QEMUGuest1 -usb -spice port=5903,tls-port=5904,addr=127.0.0.1,\ +x509-dir=/etc/pki/libvirt-spice,tls-channel=main,plaintext-channel=inputs -vga \ +qxl -global qxl-vga.vram_size=65536 -device qxl,id=video1,vram_size=65536,bus=pci.0,addr=0x4 \ +-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 diff --git a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.xml b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.xml new file mode 100644 index 0000000..fc9f3fe --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.xml @@ -0,0 +1,36 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory>219136</memory> + <currentMemory>219136</currentMemory> + <vcpu>1</vcpu> + <os> + <type arch='i686' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu</emulator> + <disk type='block' device='disk'> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='ide'/> + <address type='drive' controller='0' bus='0' unit='0'/> + </disk> + <controller type='ide' index='0'/> + <input type='mouse' bus='ps2'/> + <graphics type='spice' port='5903' tlsPort='5904' autoport='no' listen='127.0.0.1'> + <channel name='main' mode='secure'/> + <channel name='inputs' mode='insecure'/> + </graphics> + <video> + <model type='qxl' vram='65536' heads='1'/> + </video> + <video> + <model type='qxl' vram='65536' heads='1'/> + </video> + <memballoon model='virtio'/> + </devices> +</domain> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice.args b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice.args index a8fb243..f7109b0 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice.args +++ b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice.args @@ -3,5 +3,5 @@ LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test QEMU_AUDIO_DRV=spice \ unix:/tmp/test-monitor,server,nowait -no-acpi -boot c -hda \ /dev/HostVG/QEMUGuest1 -usb -spice port=5903,tls-port=5904,addr=127.0.0.1,\ x509-dir=/etc/pki/libvirt-spice,tls-channel=main,plaintext-channel=inputs -vga \ -qxl -device qxl,id=video1,bus=pci.0,addr=0x4 -device virtio-balloon-pci,\ -id=balloon0,bus=pci.0,addr=0x3 +qxl -global qxl.vram_size=65536 -device qxl,id=video1,vram_size=65536,bus=pci.0,addr=0x4 \ +-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index 4817d51..d5b240e 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -354,6 +354,10 @@ mymain(int argc, char **argv) DO_TEST("graphics-spice", QEMUD_CMD_FLAG_VGA | QEMUD_CMD_FLAG_VGA_QXL | QEMUD_CMD_FLAG_DEVICE | QEMUD_CMD_FLAG_SPICE, false); + DO_TEST("graphics-spice-qxl-vga", + QEMUD_CMD_FLAG_VGA | QEMUD_CMD_FLAG_VGA_QXL | + QEMUD_CMD_FLAG_DEVICE | QEMUD_CMD_FLAG_SPICE | + QEMUD_CMD_FLAG_DEVICE_QXL_VGA, false); DO_TEST("input-usbmouse", 0, false); DO_TEST("input-usbtablet", 0, false); diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c index 67e721b..c0c36ad 100644 --- a/tests/qemuxml2xmltest.c +++ b/tests/qemuxml2xmltest.c @@ -152,6 +152,7 @@ mymain(int argc, char **argv) DO_TEST("graphics-sdl"); DO_TEST("graphics-sdl-fullscreen"); DO_TEST("graphics-spice"); + DO_TEST("graphics-spice-qxl-vga"); DO_TEST("input-usbmouse"); DO_TEST("input-usbtablet"); DO_TEST("input-xen"); -- 1.7.4

2 5

[libvirt] [PATCH] util: Allow removing hash entries in virHashForEach
by Jiri Denemark 04 Mar '11

04 Mar '11

This fixes a possible crash of libvirtd during its startup. When qemu driver reconnects to running domains, it iterates over all domain objects in a hash. When reconnecting to an associated qemu monitor fails and the domain is transient, it's immediately removed from the hash. Despite the fact that it's explicitly forbidden to do so. If libvirtd is lucky enough, virHashForEach will access random memory when the callback finishes and the deamon will crash. Since it's trivial to fix virHashForEach to allow removal of hash entries while iterating through them, I went this way instead of fixing qemuReconnectDomain callback (and possibly others) to avoid deleting the entries. --- src/util/hash.c | 8 ++++---- 1 files changed, 4 insertions(+), 4 deletions(-) diff --git a/src/util/hash.c b/src/util/hash.c index 92ee234..2a9a9cf 100644 --- a/src/util/hash.c +++ b/src/util/hash.c @@ -548,9 +548,8 @@ virHashRemoveEntry(virHashTablePtr table, const void *name) * @data: opaque data to pass to the iterator * * Iterates over every element in the hash table, invoking the - * 'iter' callback. The callback must not call any other virHash* - * functions, and in particular must not attempt to remove the - * element. + * 'iter' callback. The callback is allowed to remove the element using + * virHashRemoveEntry but calling other virHash* functions is prohibited. * * Returns number of items iterated over upon completion, -1 on failure */ @@ -563,11 +562,12 @@ int virHashForEach(virHashTablePtr table, virHashIterator iter, void *data) { for (i = 0 ; i < table->size ; i++) { virHashEntryPtr entry = table->table + i; while (entry) { + virHashEntryPtr next = entry->next; if (entry->valid) { iter(entry->payload, entry->name, data); count++; } - entry = entry->next; + entry = next; } } return (count); -- 1.7.4.1

3 4

[libvirt] [RFC PATCHv2 0/3] outgoing migration via fd: rather than exec:
by Eric Blake 03 Mar '11

03 Mar '11

Posted as an RFC because there are still two open bugs to be solved. I've tested that with this installed, I was able to do 'virsh save domain file' without compression to a local file using qemu fd: migration. 1. I'm working on making virFileOperation use SCM_RIGHTS so that we can pass an arbitrary fd from the child back to the parent. This is necessary for supporting root-squash NFS domain save via fd, since a child cannot consistently modify the appropriate locks necessary to issue a monitor command (the current virFileOperation implementation guarantees that the hook will execute on the right fd, but does not guarantee whether the operation is in the parent or a child, and thus the operation is not permitted to modify any state in the parent other than by its return value). The current state of the patch just falls back to exec: migration if the parent process can't reopen the fd. 2. I also need to test for qemu capabilities, as qemu 0.11.0 does _not_ support fd: migration, so the old exec: migration path must remain. But checking for capabilities is a bear in itself, since we should be caching qemu capabilities when a domain is started, and not calling 'qemu -help' for every subsequent command that needs to know. Eric Blake (3): qemu: use lighter-weight fd:n on incoming tunneled migration qemu: support migration to fd qemu: allow simple domain save to use fd: protocol src/qemu/qemu_driver.c | 16 ++++++++++++-- src/qemu/qemu_migration.c | 44 +++++++++++------------------------------ src/qemu/qemu_monitor.c | 22 +++++++++++++++++++++ src/qemu/qemu_monitor.h | 4 +++ src/qemu/qemu_monitor_json.c | 21 +++++++++++++++++++- src/qemu/qemu_monitor_json.h | 6 ++++- src/qemu/qemu_monitor_text.c | 24 +++++++++++++++++++++- src/qemu/qemu_monitor_text.h | 6 ++++- 8 files changed, 103 insertions(+), 40 deletions(-) -- 1.7.4

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[libvirt] [PATCH] esx: Escape password for XML
by Matthias Bolte 03 Mar '11

03 Mar '11

Passwords are allowed to contain <, >, &, ', " characters. Those need to be replaced by the corresponding entities. Reported by Hereward Cooper. --- src/esx/esx_driver.c | 28 ++++++++++++++++++++++------ src/esx/esx_util.c | 19 +++++++++++++++++++ src/esx/esx_util.h | 2 ++ 3 files changed, 43 insertions(+), 6 deletions(-) diff --git a/src/esx/esx_driver.c b/src/esx/esx_driver.c index 116ad0f..13374b7 100644 --- a/src/esx/esx_driver.c +++ b/src/esx/esx_driver.c @@ -626,6 +626,7 @@ esxConnectToHost(esxPrivate *priv, virConnectAuthPtr auth, int result = -1; char ipAddress[NI_MAXHOST] = ""; char *username = NULL; + char *unescapedPassword = NULL; char *password = NULL; char *url = NULL; esxVI_String *propertyNameList = NULL; @@ -657,13 +658,19 @@ esxConnectToHost(esxPrivate *priv, virConnectAuthPtr auth, } } - password = virRequestPassword(auth, username, hostname); + unescapedPassword = virRequestPassword(auth, username, hostname); - if (password == NULL) { + if (unescapedPassword == NULL) { ESX_ERROR(VIR_ERR_AUTH_FAILED, "%s", _("Password request failed")); goto cleanup; } + password = esxUtil_EscapeForXml(unescapedPassword); + + if (password == NULL) { + goto cleanup; + } + if (virAsprintf(&url, "%s://%s:%d/sdk", priv->transport, hostname, port) < 0) { virReportOOMError(); @@ -727,8 +734,9 @@ esxConnectToHost(esxPrivate *priv, virConnectAuthPtr auth, result = 0; cleanup: - VIR_FREE(password); VIR_FREE(username); + VIR_FREE(unescapedPassword); + VIR_FREE(password); VIR_FREE(url); esxVI_String_Free(&propertyNameList); esxVI_ObjectContent_Free(&hostSystem); @@ -748,6 +756,7 @@ esxConnectToVCenter(esxPrivate *priv, virConnectAuthPtr auth, int result = -1; char ipAddress[NI_MAXHOST] = ""; char *username = NULL; + char *unescapedPassword = NULL; char *password = NULL; char *url = NULL; @@ -779,13 +788,19 @@ esxConnectToVCenter(esxPrivate *priv, virConnectAuthPtr auth, } } - password = virRequestPassword(auth, username, hostname); + unescapedPassword = virRequestPassword(auth, username, hostname); - if (password == NULL) { + if (unescapedPassword == NULL) { ESX_ERROR(VIR_ERR_AUTH_FAILED, "%s", _("Password request failed")); goto cleanup; } + password = esxUtil_EscapeForXml(unescapedPassword); + + if (password == NULL) { + goto cleanup; + } + if (virAsprintf(&url, "%s://%s:%d/sdk", priv->transport, hostname, port) < 0) { virReportOOMError(); @@ -822,8 +837,9 @@ esxConnectToVCenter(esxPrivate *priv, virConnectAuthPtr auth, result = 0; cleanup: - VIR_FREE(password); VIR_FREE(username); + VIR_FREE(unescapedPassword); + VIR_FREE(password); VIR_FREE(url); return result; diff --git a/src/esx/esx_util.c b/src/esx/esx_util.c index 2603957..9ef947c 100644 --- a/src/esx/esx_util.c +++ b/src/esx/esx_util.c @@ -552,3 +552,22 @@ esxUtil_EscapeDatastoreItem(const char *string) return escaped2; } + + + +char * +esxUtil_EscapeForXml(const char *string) +{ + virBuffer buffer = VIR_BUFFER_INITIALIZER; + + virBufferEscapeString(&buffer, "%s", string); + + if (virBufferError(&buffer)) { + virReportOOMError(); + virBufferFreeAndReset(&buffer); + + return NULL; + } + + return virBufferContentAndReset(&buffer); +} diff --git a/src/esx/esx_util.h b/src/esx/esx_util.h index d00e28a..39fdb6d 100644 --- a/src/esx/esx_util.h +++ b/src/esx/esx_util.h @@ -62,4 +62,6 @@ void esxUtil_ReplaceSpecialWindowsPathChars(char *string); char *esxUtil_EscapeDatastoreItem(const char *string); +char *esxUtil_EscapeForXml(const char *string); + #endif /* __ESX_UTIL_H__ */ -- 1.7.0.4

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