December 2010 - Devel - libvirt List Archives

[libvirt] [PATCH] OpenVZ: drop fd leakage
by Guido Günther 01 Dec '10

01 Dec '10

Drop unused (and unclosed) errfd and close outfd on exit. Otherwise polling the running domains with virt-manager let's us quickly run out of fds. O.k. to apply? Cheers, -- Guido

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[libvirt] [PATCH] qemu: Use macro for max and min vnc port instead of number
by Osier Yang 01 Dec '10

01 Dec '10

* src/qemu/qemu_driver.c (though MACROS QEMU_VNC_PORT_MAX, and QEMU_VNC_PORT_MIN are defined at the beginning, numbers (65535, 5900) are still used, replace them) --- src/qemu/qemu_driver.c | 8 ++++---- 1 files changed, 4 insertions(+), 4 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index fcb90a3..f733482 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -2964,7 +2964,7 @@ static int qemudNextFreePort(struct qemud_driver *driver, int startPort) { int i; - for (i = startPort ; i < 65535 ; i++) { + for (i = startPort ; i < QEMU_VNC_PORT_MAX; i++) { int fd; int reuse = 1; struct sockaddr_in addr; @@ -3939,7 +3939,7 @@ static int qemudStartVMDaemon(virConnectPtr conn, if (vm->def->ngraphics == 1) { if (vm->def->graphics[0]->type == VIR_DOMAIN_GRAPHICS_TYPE_VNC && vm->def->graphics[0]->data.vnc.autoport) { - int port = qemudNextFreePort(driver, 5900); + int port = qemudNextFreePort(driver, QEMU_VNC_PORT_MIN); if (port < 0) { qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("Unable to find an unused VNC port")); @@ -3948,7 +3948,7 @@ static int qemudStartVMDaemon(virConnectPtr conn, vm->def->graphics[0]->data.vnc.port = port; } else if (vm->def->graphics[0]->type == VIR_DOMAIN_GRAPHICS_TYPE_SPICE && vm->def->graphics[0]->data.spice.autoport) { - int port = qemudNextFreePort(driver, 5900); + int port = qemudNextFreePort(driver, QEMU_VNC_PORT_MIN); int tlsPort = -1; if (port < 0) { qemuReportError(VIR_ERR_INTERNAL_ERROR, @@ -7380,7 +7380,7 @@ static char *qemuDomainXMLToNative(virConnectPtr conn, for (i = 0 ; i < def->ngraphics ; i++) { if (def->graphics[i]->type == VIR_DOMAIN_GRAPHICS_TYPE_VNC && def->graphics[i]->data.vnc.autoport) - def->graphics[i]->data.vnc.port = 5900; + def->graphics[i]->data.vnc.port = QEMU_VNC_PORT_MIN; } emulator = def->emulator; -- 1.7.3.2

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[libvirt] [PATCH] Fix warning when macvtap support is disabled
by Jean-Baptiste Rouault 01 Dec '10

01 Dec '10

--- src/qemu/qemu_conf.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c index b0343c6..7cd0603 100644 --- a/src/qemu/qemu_conf.c +++ b/src/qemu/qemu_conf.c @@ -1689,6 +1689,7 @@ qemudPhysIfaceConnect(virConnectPtr conn, (void)qemuCmdFlags; (void)driver; (void)vmuuid; + (void)vmop; qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("No support for macvtap device")); rc = -1; -- 1.7.0.4

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[libvirt] [PATCH] qemu: Fix typo in qemuTeardownDiskPathDeny
by Osier Yang 01 Dec '10

01 Dec '10

typo in error message, it should be by copy-a-paste from "qemuSetupDiskPathAllow". * src/qemu/qemu_driver.c (qemuTeardownDiskPathDeny) --- src/qemu/qemu_driver.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index fcb90a3..5d90e59 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -3401,7 +3401,7 @@ static int qemuTeardownDiskPathDeny(virDomainDiskDefPtr disk ATTRIBUTE_UNUSED, VIR_DEBUG("Ignoring EACCES for %s", path); } else { virReportSystemError(-rc, - _("Unable to allow access for disk path %s"), + _("Unable to deny access for disk path %s"), path); return -1; } -- 1.7.3.2

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[libvirt] [PATCH] virsh: update help for "virsh help help"
by Osier Yang 01 Dec '10

01 Dec '10

As virsh help supports both command and command group now, update "cmdHelp" to print consite help, (this patch is increment of "7829052757953023b0826e0293ffe18ed4ab89e9"). And also remove redundant empty line in "vshUsage". * tools/virsh.c --- tools/virsh.c | 19 +++++++++++++------ 1 files changed, 13 insertions(+), 6 deletions(-) diff --git a/tools/virsh.c b/tools/virsh.c index 010e345..6a9aba2 100644 --- a/tools/virsh.c +++ b/tools/virsh.c @@ -562,13 +562,15 @@ vshReconnect(vshControl *ctl) { */ static const vshCmdInfo info_help[] = { {"help", N_("print help")}, - {"desc", N_("Prints global help or command specific help.")}, + {"desc", N_("Prints global help, command specific help, or help for a\n" + " group of related commands")}, {NULL, NULL} }; static const vshCmdOptDef opts_help[] = { - {"command", VSH_OT_DATA, 0, N_("name of command")}, + {"command", VSH_OT_DATA, 0, N_("Prints global help or command specific help.")}, + {"group", VSH_OT_DATA, 0, N_("Prints global help or help for a group of related commands.")}, {NULL, 0, 0, NULL} }; @@ -577,7 +579,12 @@ cmdHelp(vshControl *ctl, const vshCmd *cmd) { const vshCmdDef *c; const vshCmdGrp *g; - const char *name = vshCommandOptString(cmd, "command", NULL); + const char *name; + + name = vshCommandOptString(cmd, "command", NULL); + + if (!name) + name = vshCommandOptString(cmd, "group", NULL); if (!name) { const vshCmdGrp *grp; @@ -596,8 +603,8 @@ cmdHelp(vshControl *ctl, const vshCmd *cmd) vshPrint(ctl, "\n"); } - return TRUE; - } + return TRUE; + } if ((c = vshCmddefSearch(name))) { return vshCmddefHelp(ctl, name); @@ -11694,7 +11701,7 @@ vshUsage(void) " -q | --quiet quiet mode\n" " -t | --timing print timing information\n" " -l | --log <file> output logging to file\n" - " -v | --version[=short] program version\n\n" + " -v | --version[=short] program version\n" " -V | --version=long version and full options\n\n" " commands (non interactive mode):\n\n"), progname, progname); -- 1.7.3.2

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[libvirt] [PATCH] Fix undefined symbol error when macvtap support is disabled
by Matthias Bolte 01 Dec '10

01 Dec '10

Use macvtap specific functions depending on WITH_MACVTAP. Use #if instead of #ifdef to check for WITH_MACVTAP, because WITH_MACVTAP is always defined with value 0 or 1. Also export virVMOperationType{To|From}String unconditional, because they are used unconditional in the domain config code. --- src/libvirt_macvtap.syms | 5 +++-- src/libvirt_private.syms | 5 +++++ src/qemu/qemu_driver.c | 4 ++++ src/util/macvtap.h | 19 +++++++++---------- 4 files changed, 21 insertions(+), 12 deletions(-) diff --git a/src/libvirt_macvtap.syms b/src/libvirt_macvtap.syms index 107b7da..b48565b 100644 --- a/src/libvirt_macvtap.syms +++ b/src/libvirt_macvtap.syms @@ -1,9 +1,10 @@ # +# These symbols are dependent on WITH_MACVTAP. +# + # macvtap.h delMacvtap; openMacvtapTap; -virVMOperationTypeFromString; -virVMOperationTypeToString; vpAssociatePortProfileId; vpDisassociatePortProfileId; diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index 310d8f4..3c1c823 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -504,6 +504,11 @@ virLogStartup; virLogUnlock; +# macvtap.h +virVMOperationTypeFromString; +virVMOperationTypeToString; + + # memory.h virAlloc; virAllocN; diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index fcb90a3..aa3478f 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -11879,6 +11879,7 @@ cleanup: return ret; } +#if WITH_MACVTAP static void qemudVPAssociatePortProfiles(virDomainDefPtr def) { int i; @@ -11913,6 +11914,7 @@ err_exit: } } } +#endif /* WITH_MACVTAP */ /* Finish is the third and final step, and it runs on the destination host. */ static virDomainPtr @@ -11974,7 +11976,9 @@ qemudDomainMigrateFinish2 (virConnectPtr dconn, goto cleanup; } +#if WITH_MACVTAP qemudVPAssociatePortProfiles(vm->def); +#endif /* WITH_MACVTAP */ if (flags & VIR_MIGRATE_PERSIST_DEST) { if (vm->persistent) diff --git a/src/util/macvtap.h b/src/util/macvtap.h index 389d1fd..3ae2c24 100644 --- a/src/util/macvtap.h +++ b/src/util/macvtap.h @@ -57,11 +57,6 @@ struct _virVirtualPortProfileParams { } u; }; - -# if defined(WITH_MACVTAP) - -# include "internal.h" - enum virVMOperationType { VIR_VM_OP_CREATE, VIR_VM_OP_SAVE, @@ -75,6 +70,10 @@ enum virVMOperationType { VIR_VM_OP_LAST }; +# if WITH_MACVTAP + +# include "internal.h" + int openMacvtapTap(const char *ifname, const unsigned char *macaddress, const char *linkdev, @@ -90,11 +89,9 @@ void delMacvtap(const char *ifname, const char *linkdev, virVirtualPortProfileParamsPtr virtPortProfile); -# endif /* WITH_MACVTAP */ - -# define MACVTAP_MODE_PRIVATE_STR "private" -# define MACVTAP_MODE_VEPA_STR "vepa" -# define MACVTAP_MODE_BRIDGE_STR "bridge" +# define MACVTAP_MODE_PRIVATE_STR "private" +# define MACVTAP_MODE_VEPA_STR "vepa" +# define MACVTAP_MODE_BRIDGE_STR "bridge" int vpAssociatePortProfileId(const char *macvtap_ifname, const unsigned char *macvtap_macaddr, @@ -109,6 +106,8 @@ int vpDisassociatePortProfileId(const char *macvtap_ifname, const virVirtualPortProfileParamsPtr virtPort, enum virVMOperationType vmOp); +# endif /* WITH_MACVTAP */ + VIR_ENUM_DECL(virVirtualPort) VIR_ENUM_DECL(virVMOperation) -- 1.7.0.4

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[libvirt] [PATCH] Fix flaw in thread creation APIs
by Daniel P. Berrange 01 Dec '10

01 Dec '10

The arguments passed to the thread function must be allocated on the heap, rather than the stack, since it is possible for the spawning thread to continue before the new thread runs at all. In such a case, it is possible that the area of stack where the thread args were stored is overwritten. * src/util/threads-pthread.c, src/util/threads-win32.c: Allocate thread arguments on the heap --- src/util/threads-pthread.c | 15 +++++++++++++-- src/util/threads-win32.c | 17 ++++++++++++++--- 2 files changed, 27 insertions(+), 5 deletions(-) diff --git a/src/util/threads-pthread.c b/src/util/threads-pthread.c index 02070ae..bff4979 100644 --- a/src/util/threads-pthread.c +++ b/src/util/threads-pthread.c @@ -26,6 +26,8 @@ # include <sys/syscall.h> #endif +#include "memory.h" + /* Nothing special required for pthreads */ int virThreadInitialize(void) @@ -143,6 +145,7 @@ static void *virThreadHelper(void *data) { struct virThreadArgs *args = data; args->func(args->opaque); + VIR_FREE(args); return NULL; } @@ -151,17 +154,25 @@ int virThreadCreate(virThreadPtr thread, virThreadFunc func, void *opaque) { - struct virThreadArgs args = { func, opaque }; + struct virThreadArgs *args; pthread_attr_t attr; pthread_attr_init(&attr); + if (VIR_ALLOC(args) < 0) + return -1; + + args->func = func; + args->opaque = opaque; + if (!joinable) pthread_attr_setdetachstate(&attr, 1); - int ret = pthread_create(&thread->thread, &attr, virThreadHelper, &args); + int ret = pthread_create(&thread->thread, &attr, virThreadHelper, args); if (ret != 0) { + VIR_FREE(args); errno = ret; return -1; } + /* New thread owns 'args' in success case, so don't free */ return 0; } diff --git a/src/util/threads-win32.c b/src/util/threads-win32.c index 33be4cf..436b3bd 100644 --- a/src/util/threads-win32.c +++ b/src/util/threads-win32.c @@ -230,6 +230,8 @@ static void virThreadHelperDaemon(void *data) TlsSetValue(selfkey, NULL); CloseHandle(self.thread); + + VIR_FREE(args); } static unsigned int __stdcall virThreadHelperJoinable(void *data) @@ -249,6 +251,8 @@ static unsigned int __stdcall virThreadHelperJoinable(void *data) TlsSetValue(selfkey, NULL); CloseHandle(self.thread); + + VIR_FREE(args); return 0; } @@ -257,17 +261,24 @@ int virThreadCreate(virThreadPtr thread, virThreadFunc func, void *opaque) { - struct virThreadArgs args = { func, opaque }; + struct virThreadArgs *args; + + if (VIR_ALLOC(args) < 0) + return -1; + + args->func = func; + args->opaque = opaque; + thread->joinable = joinable; if (joinable) { thread->thread = (HANDLE)_beginthreadex(NULL, 0, virThreadHelperJoinable, - &args, 0, NULL); + args, 0, NULL); if (thread->thread == 0) return -1; } else { thread->thread = (HANDLE)_beginthread(virThreadHelperDaemon, - 0, &args); + 0, args); if (thread->thread == (HANDLE)-1L) return -1; } -- 1.7.2.3

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[libvirt] Link error since commit c2b3827
by Jean-Baptiste Rouault 01 Dec '10

01 Dec '10

I get the following link error since commit c2b3827 : make[3]: Entering directory `/home/jb/Devel/libvirt/daemon' CCLD libvirtd ../src/.libs/libvirt_driver_qemu.a(libvirt_driver_qemu_la-qemu_driver.o): In function `qemudVPAssociatePortProfiles': /home/jb/Devel/libvirt/src/qemu/qemu_driver.c:11891: undefined reference to `vpAssociatePortProfileId' /home/jb/Devel/libvirt/src/qemu/qemu_driver.c:11908: undefined reference to `vpDisassociatePortProfileId' Macvtap support is disabled and these 2 functions come from macvtap.h. Regards, -- Jean-Baptiste ROUAULT Ingénieur R&D - Diateam : Architectes de l'information Phone : +33 (0)9 53 16 02 70 Fax : +33 (0)2 98 050 051

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[libvirt] Best virsh group for storage "find-*" commands?
by Justin Clift 01 Dec '10

01 Dec '10

Hi us, Just realised the new groupings of commands in virsh help has the two storage "find" commands in domain management. These ones: + find-storage-pool-sources-as find potential storage pool sources + find-storage-pool-sources discover potential storage pool sources They'd be better placed in the Storage Pool group wouldn't they? Regards and best wishes, Justin Clift

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[libvirt] CGROUPS network classID setting in domain
by D. Herrendoerfer 01 Dec '10

01 Dec '10

Hello, I'm looking into the possibility of putting a network(tc) classID into to the domain description and adding it into a (possibly) mounted cgroup directory upon launch of a VM. Has anyone before looked into this ? I've seen this mentioned in an abstract by Daniel B. I imagine a classid entry to look somewhat like: <domain type='qemu'> <name > foo</name> <uuid>3e3fce45-4f53-4fa7-bb32-11f34168b82b </uuid> ... <classid>0x1234</classid> ... Thoughts ? Best regards, D. Herrendoerfer

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