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[libvirt] [PATCH] conf: Fill listenAddr from driver if none set
by Michal Privoznik 25 Jun '12

25 Jun '12

Currently, if domain's graphic has no listenAddr set we provide the one from qemu.conf. However, we must make this transient to not overwrite future changes to the config file. Moreover, we have to store this into domain state XML so we remain consistent on eventual config file edits. --- Since users will never see new 'driverListenAddress' attribute I don't think update of RNG schema is necessary. src/conf/domain_conf.c | 14 ++++++++++++++ src/conf/domain_conf.h | 6 ++++++ src/qemu/qemu_command.c | 18 ++++++++++++++++-- 3 files changed, 36 insertions(+), 2 deletions(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 4651765..29fa215 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -909,6 +909,7 @@ void virDomainGraphicsDefFree(virDomainGraphicsDefPtr def) for (ii = 0; ii < def->nListens; ii++) virDomainGraphicsListenDefClear(&def->listens[ii]); VIR_FREE(def->listens); + VIR_FREE(def->driverListenAddress); VIR_FREE(def); } @@ -5976,6 +5977,7 @@ virDomainGraphicsDefParseXML(xmlNodePtr node, int nListens; xmlNodePtr *listenNodes = NULL; char *listenAddr = NULL; + char *driverListenAddress = NULL; xmlNodePtr save = ctxt->node; if (VIR_ALLOC(def) < 0) { @@ -5999,6 +6001,12 @@ virDomainGraphicsDefParseXML(xmlNodePtr node, goto error; } + if (flags & VIR_DOMAIN_XML_INTERNAL_STATUS) { + driverListenAddress = virXMLPropString(node, "driverListenAddress"); + if (driverListenAddress) + def->driverListenAddress = driverListenAddress; + } + if (def->type == VIR_DOMAIN_GRAPHICS_TYPE_VNC || def->type == VIR_DOMAIN_GRAPHICS_TYPE_RDP || def->type == VIR_DOMAIN_GRAPHICS_TYPE_SPICE) { @@ -12323,9 +12331,15 @@ virDomainGraphicsDefFormat(virBufferPtr buf, break; } } + if (!listenAddr && !(flags & VIR_DOMAIN_XML_INACTIVE)) + listenAddr = def->driverListenAddress; virBufferAsprintf(buf, " <graphics type='%s'", type); + if (flags & VIR_DOMAIN_XML_INTERNAL_STATUS && def->driverListenAddress) + virBufferAsprintf(buf, " driverListenAddress='%s'", + def->driverListenAddress); + switch (def->type) { case VIR_DOMAIN_GRAPHICS_TYPE_VNC: if (def->data.vnc.socket) { diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index 3712785..6ad48fd 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -1273,6 +1273,12 @@ struct _virDomainGraphicsDef { * simplify parsing code.*/ size_t nListens; virDomainGraphicsListenDefPtr listens; + + /* In qemu driver if none of 'listens' contain usable listen address, + * the one from qemu.conf file is taken. However, we cannot store it + * into inactive XML as it would discard all future changes made to + * the config file. */ + char * driverListenAddress; }; enum virDomainRedirdevBus { diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 6549f57..9878a66 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -5496,8 +5496,15 @@ qemuBuildCommandLine(virConnectPtr conn, break; } - if (!listenAddr) + if (!listenAddr) { listenAddr = driver->vncListen; + if (listenAddr && + !(def->graphics[0]->driverListenAddress = + strdup(listenAddr))) { + virReportOOMError(); + goto error; + } + } escapeAddr = strchr(listenAddr, ':') != NULL; if (escapeAddr) @@ -5647,8 +5654,15 @@ qemuBuildCommandLine(virConnectPtr conn, break; } - if (!listenAddr) + if (!listenAddr) { listenAddr = driver->spiceListen; + if (listenAddr && + !(def->graphics[0]->driverListenAddress = + strdup(listenAddr))) { + virReportOOMError(); + goto error; + } + } if (listenAddr) virBufferAsprintf(&opt, ",addr=%s", listenAddr); -- 1.7.8.5

2 5

[libvirt] [libvirt-glib] mainloop integration fixes
by Christophe Fergeau 25 Jun '12

25 Jun '12

Hey, While testing Boxes, I've noticed that if I started a VM and then let it in the background for a while, it usually crashed after a while. When this happens, the backtrace is: Program received signal SIGSEGV, Segmentation fault. 0x00007ffff6671898 in gvir_event_handle_dispatch (source=0x7fffdc001f60, condition=G_IO_IN, opaque=0x7fffdc0021a0) at libvirt-glib-event.c:135 135 (data->cb)(data->watch, data->fd, events, data->opaque); (gdb) bt #0 0x00007ffff6671898 in gvir_event_handle_dispatch (source=0x7fffdc001f60, condition=G_IO_IN, opaque=0x7fffdc0021a0) at libvirt-glib-event.c:135 #1 0x00007ffff231dcb4 in g_io_unix_dispatch (source=0x40e34a0, callback=0x7ffff66717d8 <gvir_event_handle_dispatch>, user_data=0x7fffdc0021a0) at giounix.c:166 #2 0x00007ffff22cef15 in g_main_dispatch (context=0x7007f0) at gmain.c:2539 #3 0x00007ffff22cfbda in g_main_context_dispatch (context=0x7007f0) at gmain.c:3075 #4 0x00007ffff22cfdbd in g_main_context_iterate (context=0x7007f0, block=1, dispatch=1, self=0x15d3180) at gmain.c:3146 #5 0x00007ffff22cfe81 in g_main_context_iteration (context=0x7007f0, may_block=1) at gmain.c:3207 #6 0x00007ffff2ad7e7c in g_application_run (application=0x70b890, argc=0, argv=0x0) at gapplication.c:1607 #7 0x000000000041df98 in boxes_app_run (self=0x1527010) at app.c:1254 #8 0x0000000000450134 in _vala_main (args=0x7fffffffd708, args_length1=1) at main.c:729 #9 0x000000000045019e in main (argc=1, argv=0x7fffffffd708) at main.c:740 and the corresponding gvir_event_handle structure is corrupted: (gdb) p *data $3 = {watch = 0, fd = 0, events = 1886417008, enabled = 1886417008, channel = 0x7070707070707070, source = 1886417008, cb = 0x7070707070707070, opaque = 0x7070707070707070, ff = 0x7ffff60cfba0 <virNetSocketEventFree>} (gdb) p/x *data $4 = {watch = 0x0, fd = 0x0, events = 0x70707070, enabled = 0x70707070, channel = 0x7070707070707070, source = 0x70707070, cb = 0x7070707070707070, opaque = 0x7070707070707070, ff = 0x7ffff60cfba0} (I'm running with MALLOC_PERTURB_ set so the 0x70707070 pattern indicates uninitialized memory). Right before this happens, the libvirt-glib event debugging log has: (gnome-boxes:29577): Libvirt.GLib-DEBUG: Remove handle 0x7fffdc0021a0 1 27 (gnome-boxes:29577): Libvirt.GLib-DEBUG: Update handle 0x7fffdc0021a0 1 27 1 (gnome-boxes:29577): Libvirt.GLib-DEBUG: Update for missing handle watch 1 (gnome-boxes:29577): Libvirt.GLib-DEBUG: Dispatch handler 0x7fffdc0021a0 0 0 1 0x7070707070707070 that is, libvirt removes a handle watch, and then updates this handle (in other words, it calls virEventPollUpdateHandle after having called virEventPollRemoveHandle on the same handle). I don't know if it's legit for libvirt to do that, but we can make libvirt-glib robust against this situation, which is what patch 5/5 does. The first 3 patches are small cleanups, and 4/5 fixes a potential race which I found while looking at this code. Christophe

2 13

[libvirt] [libvirt-glib 1/8] Setters/adders for GVirConfigCapabilitiesCpu props
by Zeeshan Ali (Khattak) 25 Jun '12

25 Jun '12

From: "Zeeshan Ali (Khattak)" <zeeshanak(a)gnome.org> - gvir_config_capabilities_cpu_add_feature - gvir_config_capabilities_cpu_set_topology --- libvirt-gconfig/libvirt-gconfig-capabilities-cpu.c | 32 ++++++++++++++++++++ libvirt-gconfig/libvirt-gconfig-capabilities-cpu.h | 6 ++++ libvirt-gconfig/libvirt-gconfig.sym | 2 ++ 3 files changed, 40 insertions(+) diff --git a/libvirt-gconfig/libvirt-gconfig-capabilities-cpu.c b/libvirt-gconfig/libvirt-gconfig-capabilities-cpu.c index df77364..e517a20 100644 --- a/libvirt-gconfig/libvirt-gconfig-capabilities-cpu.c +++ b/libvirt-gconfig/libvirt-gconfig-capabilities-cpu.c @@ -56,6 +56,21 @@ gvir_config_capabilities_cpu_get_arch(GVirConfigCapabilitiesCpu *cpu) return gvir_config_object_get_node_content(GVIR_CONFIG_OBJECT(cpu), "arch"); } +/** + * gvir_config_capabilities_cpu_add_feature: + * + * Adds a new feature to CPU. + */ +void gvir_config_capabilities_cpu_add_feature(GVirConfigCapabilitiesCpu *cpu, + GVirConfigCapabilitiesCpuFeature *feature) +{ + g_return_if_fail(GVIR_CONFIG_IS_CAPABILITIES_CPU(cpu)); + g_return_if_fail(GVIR_CONFIG_IS_CAPABILITIES_CPU_FEATURE(feature)); + + gvir_config_object_attach_add(GVIR_CONFIG_OBJECT(cpu), + GVIR_CONFIG_OBJECT(feature)); +} + struct GetFeatureData { GVirConfigXmlDoc *doc; const gchar *schema; @@ -133,3 +148,20 @@ gvir_config_capabilities_cpu_get_topology(GVirConfigCapabilitiesCpu *cpu) return GVIR_CONFIG_CAPABILITIES_CPU_TOPOLOGY(object); } + +/** + * gvir_config_capabilities_cpu_set_topology: + * + * Sets the topology of the cpu. + */ +void +gvir_config_capabilities_cpu_set_topology(GVirConfigCapabilitiesCpu *cpu, + GVirConfigCapabilitiesCpuTopology *topology) +{ + g_return_if_fail(GVIR_CONFIG_IS_CAPABILITIES_CPU(cpu)); + g_return_if_fail(GVIR_CONFIG_IS_CAPABILITIES_CPU_TOPOLOGY(topology)); + + gvir_config_object_attach_replace(GVIR_CONFIG_OBJECT(cpu), + "topology", + GVIR_CONFIG_OBJECT(topology)); +} diff --git a/libvirt-gconfig/libvirt-gconfig-capabilities-cpu.h b/libvirt-gconfig/libvirt-gconfig-capabilities-cpu.h index 4d896ef..67fe607 100644 --- a/libvirt-gconfig/libvirt-gconfig-capabilities-cpu.h +++ b/libvirt-gconfig/libvirt-gconfig-capabilities-cpu.h @@ -29,6 +29,7 @@ #define __LIBVIRT_GCONFIG_CAPABILITIES_CPU_H__ #include "libvirt-gconfig-capabilities-cpu-topology.h" +#include "libvirt-gconfig-capabilities-cpu-feature.h" G_BEGIN_DECLS @@ -63,10 +64,15 @@ GType gvir_config_capabilities_cpu_get_type(void); const gchar * gvir_config_capabilities_cpu_get_arch(GVirConfigCapabilitiesCpu *cpu); +void gvir_config_capabilities_cpu_add_feature(GVirConfigCapabilitiesCpu *cpu, + GVirConfigCapabilitiesCpuFeature *feature); GList * gvir_config_capabilities_cpu_get_features(GVirConfigCapabilitiesCpu *cpu); GVirConfigCapabilitiesCpuTopology * gvir_config_capabilities_cpu_get_topology(GVirConfigCapabilitiesCpu *cpu); +void +gvir_config_capabilities_cpu_set_topology(GVirConfigCapabilitiesCpu *cpu, + GVirConfigCapabilitiesCpuTopology *topology); G_END_DECLS diff --git a/libvirt-gconfig/libvirt-gconfig.sym b/libvirt-gconfig/libvirt-gconfig.sym index 5473148..a9e5da5 100644 --- a/libvirt-gconfig/libvirt-gconfig.sym +++ b/libvirt-gconfig/libvirt-gconfig.sym @@ -389,9 +389,11 @@ LIBVIRT_GCONFIG_0.0.9 { gvir_config_capabilities_get_guests; gvir_config_capabilities_cpu_get_type; + gvir_config_capabilities_cpu_add_feature; gvir_config_capabilities_cpu_get_arch; gvir_config_capabilities_cpu_get_features; gvir_config_capabilities_cpu_get_topology; + gvir_config_capabilities_cpu_set_topology; gvir_config_capabilities_cpu_feature_get_type; gvir_config_capabilities_cpu_feature_get_name; -- 1.7.10.4

3 13

[libvirt] [PATCH v2] storage: Introduce --inactive for pool-dumpxml
by Michal Privoznik 25 Jun '12

25 Jun '12

Storage is one of the last domains in libvirt where we don't fully utilize inactive and live XML. Okay, it might be because we don't have support for that. So implement such support. However, we need to fallback when talking to old daemon which doesn't support this new flag called VIR_STORAGE_XML_INACTIVE. --- include/libvirt/libvirt.h.in | 4 ++++ src/libvirt.c | 2 +- src/storage/storage_driver.c | 10 ++++++++-- tools/virsh.c | 24 ++++++++++++++++++++++-- tools/virsh.pod | 4 +++- 5 files changed, 38 insertions(+), 6 deletions(-) diff --git a/include/libvirt/libvirt.h.in b/include/libvirt/libvirt.h.in index 024c4ec..6e8d5dd 100644 --- a/include/libvirt/libvirt.h.in +++ b/include/libvirt/libvirt.h.in @@ -2445,6 +2445,10 @@ struct _virStorageVolInfo { typedef virStorageVolInfo *virStorageVolInfoPtr; +typedef enum { + VIR_STORAGE_XML_INACTIVE = (1 << 0), /* dump inactive pool/volume information */ +} virStorageXMLFlags; + /* * Get connection from pool. */ diff --git a/src/libvirt.c b/src/libvirt.c index 0aa50cb..ef5ac47 100644 --- a/src/libvirt.c +++ b/src/libvirt.c @@ -12169,7 +12169,7 @@ error: /** * virStoragePoolGetXMLDesc: * @pool: pointer to storage pool - * @flags: bitwise-OR of virDomainXMLFlags + * @flags: bitwise-OR of virStorageXMLFlags * * Fetch an XML document describing all aspects of the * storage pool. This is suitable for later feeding back diff --git a/src/storage/storage_driver.c b/src/storage/storage_driver.c index 3b95c70..fbc630d 100644 --- a/src/storage/storage_driver.c +++ b/src/storage/storage_driver.c @@ -960,9 +960,10 @@ storagePoolGetXMLDesc(virStoragePoolPtr obj, { virStorageDriverStatePtr driver = obj->conn->storagePrivateData; virStoragePoolObjPtr pool; + virStoragePoolDefPtr def; char *ret = NULL; - virCheckFlags(0, NULL); + virCheckFlags(VIR_STORAGE_XML_INACTIVE, NULL); storageDriverLock(driver); pool = virStoragePoolObjFindByUUID(&driver->pools, obj->uuid); @@ -974,7 +975,12 @@ storagePoolGetXMLDesc(virStoragePoolPtr obj, goto cleanup; } - ret = virStoragePoolDefFormat(pool->def); + if ((flags & VIR_STORAGE_XML_INACTIVE) && pool->newDef) + def = pool->newDef; + else + def = pool->def; + + ret = virStoragePoolDefFormat(def); cleanup: if (pool) diff --git a/tools/virsh.c b/tools/virsh.c index 567a5f6..2b4cb2c 100644 --- a/tools/virsh.c +++ b/tools/virsh.c @@ -10807,6 +10807,7 @@ static const vshCmdInfo info_pool_dumpxml[] = { static const vshCmdOptDef opts_pool_dumpxml[] = { {"pool", VSH_OT_DATA, VSH_OFLAG_REQ, N_("pool name or uuid")}, + {"inactive", VSH_OT_BOOL, 0, N_("show inactive defined XML")}, {NULL, 0, 0, NULL} }; @@ -10815,15 +10816,20 @@ cmdPoolDumpXML(vshControl *ctl, const vshCmd *cmd) { virStoragePoolPtr pool; bool ret = true; + bool inactive = vshCommandOptBool(cmd, "inactive"); + unsigned int flags = 0; char *dump; + if (inactive) + flags |= VIR_STORAGE_XML_INACTIVE; + if (!vshConnectionUsability(ctl, ctl->conn)) return false; if (!(pool = vshCommandOptPool(ctl, cmd, "pool", NULL))) return false; - dump = virStoragePoolGetXMLDesc(pool, 0); + dump = virStoragePoolGetXMLDesc(pool, flags); if (dump != NULL) { vshPrint(ctl, "%s", dump); VIR_FREE(dump); @@ -16127,7 +16133,8 @@ cmdPoolEdit(vshControl *ctl, const vshCmd *cmd) bool ret = false; virStoragePoolPtr pool = NULL; virStoragePoolPtr pool_edited = NULL; - unsigned int flags = 0; + unsigned int flags = VIR_STORAGE_XML_INACTIVE; + char *tmp_desc = NULL; if (!vshConnectionUsability(ctl, ctl->conn)) goto cleanup; @@ -16136,6 +16143,19 @@ cmdPoolEdit(vshControl *ctl, const vshCmd *cmd) if (pool == NULL) goto cleanup; + /* Some old daemons don't support _INACTIVE flag */ + if (!(tmp_desc = virStoragePoolGetXMLDesc(pool, flags))) { + if (last_error->code == VIR_ERR_INVALID_ARG) { + flags &= ~VIR_STORAGE_XML_INACTIVE; + virFreeError(last_error); + last_error = NULL; + } else { + goto cleanup; + } + } else { + VIR_FREE(tmp_desc); + } + #define EDIT_GET_XML virStoragePoolGetXMLDesc(pool, flags) #define EDIT_NOT_CHANGED \ vshPrint(ctl, _("Pool %s XML configuration not changed.\n"), \ diff --git a/tools/virsh.pod b/tools/virsh.pod index f83a29d..191c9f2 100644 --- a/tools/virsh.pod +++ b/tools/virsh.pod @@ -2112,9 +2112,11 @@ Destroy the resources used by a given I<pool> object. This operation is non-recoverable. The I<pool> object will still exist after this command, ready for the creation of new storage volumes. -=item B<pool-dumpxml> I<pool-or-uuid> +=item B<pool-dumpxml> [I<--inactive>] I<pool-or-uuid> Returns the XML information about the I<pool> object. +I<--inactive> tells virsh to dump pool configuration that will be used +on next start of the pool as opposed to the current pool configuration. =item B<pool-edit> I<pool-or-uuid> -- 1.7.8.5

2 1

[libvirt] [PATCH] sanlock: Properly indent
by Michal Privoznik 25 Jun '12

25 Jun '12

One of latest patches (0fce94fe) didn't properly indented #define making syntax-check fail. --- Pushed under build-breaker rule. src/locking/lock_driver_sanlock.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/src/locking/lock_driver_sanlock.c b/src/locking/lock_driver_sanlock.c index 9668ca9..26bdde8 100644 --- a/src/locking/lock_driver_sanlock.c +++ b/src/locking/lock_driver_sanlock.c @@ -60,7 +60,7 @@ * too old to provide that define, and probably the functionality too */ #ifndef SANLK_RES_SHARED -#define SANLK_RES_SHARED 0x4 +# define SANLK_RES_SHARED 0x4 #endif typedef struct _virLockManagerSanlockDriver virLockManagerSanlockDriver; -- 1.7.8.5

1 0

[libvirt] [PATCH] Fix compilation on older sanlock
by Daniel Veillard 25 Jun '12

25 Jun '12

This is clearly not ideal, but we ought to check the version of sanlock and act accordingly. We may end up with autoconf.ac and libvirt.spec.in change for the real fix. Pushing under the build breaker rule Temporary fix since compilation broke with older version of sanlock following acbd4965c44c4dbc676dfe89aff970052e376073 diff --git a/src/locking/lock_driver_sanlock.c b/src/locking/lock_driver_sanlock.c index 16941c9..9668ca9 100644 --- a/src/locking/lock_driver_sanlock.c +++ b/src/locking/lock_driver_sanlock.c @@ -55,6 +55,14 @@ #define VIR_LOCK_MANAGER_SANLOCK_AUTO_DISK_LOCKSPACE "__LIBVIRT__DISKS__" +/* + * temporary fix for the case where the sanlock devel package is + * too old to provide that define, and probably the functionality too + */ +#ifndef SANLK_RES_SHARED +#define SANLK_RES_SHARED 0x4 +#endif + typedef struct _virLockManagerSanlockDriver virLockManagerSanlockDriver; typedef virLockManagerSanlockDriver *virLockManagerSanlockDriverPtr; -- 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] This patch mounts /run and /var/run before running a sandbox container
by Daniel J Walsh 25 Jun '12

25 Jun '12

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 We do not want to share /run between containers and the host. This patch mounts a tmpfs on /run and then bind mounts /run on /var/run. Reason this is pach 0003 is that this is a part of a previous patch set that was never applied. Sorry to those who are receiving this patch for the second time, as I sent it first to the wrong list. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk/keZcACgkQrlYvE4MpobNnagCgyHc9igEYxPT/Bblf1XVPkwMX EM0Anj9xzzf9k88He1gkoXKBEAija52U =4Uny -----END PGP SIGNATURE-----

2 1

[libvirt] regression ?
by Harsh Bora 25 Jun '12

25 Jun '12

Hi, I was testing an under-development patch on upstream libvirt using domxml-to-native and domxml-from-native and realised that the domxml-from-native fails for a successfully generated qemu cmd line using domxml-to-native. To isolate the issue, I tried generating the qemu cmd line for tests/qemuxml2argvdata/qemuxml2argv-disk-virtio.xml like this: $virsh domxml-to-native qemu-argv tests/qemuxml2argvdata/qemuxml2argv-disk-virtio.xml > qemu-args Now, when I try to generate the XML back for the same CLI, it fails: $virsh domxml-from-native qemu-argv qem-args error: internal error missing index/unit/bus parameter in drive 'file=/dev/HostVG/QEMUGuest1,if=none,id=drive-ide0-0-0,format=raw' Does anyone have any idea, what could be causing this ? regards, Harsh

2 1

[libvirt] [PATCH] virsh: Use virXPath wrappers for vncdisplay cmd
by Doug Goldstein 25 Jun '12

25 Jun '12

Update the vncdisplay command to use the virXPath wrappers as well as check if the domain is up rather than using the port set to -1 to mean the domain is not up. Signed-off-by: Doug Goldstein <cardoe(a)cardoe.com> --- tools/virsh.c | 30 +++++++++++++++--------------- 1 files changed, 15 insertions(+), 15 deletions(-) diff --git a/tools/virsh.c b/tools/virsh.c index 0354822..a6649f4 100644 --- a/tools/virsh.c +++ b/tools/virsh.c @@ -13844,12 +13844,12 @@ static bool cmdVNCDisplay(vshControl *ctl, const vshCmd *cmd) { xmlDocPtr xml = NULL; - xmlXPathObjectPtr obj = NULL; xmlXPathContextPtr ctxt = NULL; virDomainPtr dom; bool ret = false; int port = 0; char *doc; + char *listen_addr; if (!vshConnectionUsability(ctl, ctl->conn)) return false; @@ -13857,6 +13857,12 @@ cmdVNCDisplay(vshControl *ctl, const vshCmd *cmd) if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return false; + /* Check if the domain is active and don't rely on -1 for this */ + if (!virDomainIsActive(dom)) { + vshError(ctl, _("Domain is not running")); + goto cleanup; + } + doc = virDomainGetXMLDesc(dom, 0); if (!doc) goto cleanup; @@ -13866,29 +13872,23 @@ cmdVNCDisplay(vshControl *ctl, const vshCmd *cmd) if (!xml) goto cleanup; - obj = xmlXPathEval(BAD_CAST "string(/domain/devices/graphics[@type='vnc']/@port)", ctxt); - if (obj == NULL || obj->type != XPATH_STRING || - obj->stringval == NULL || obj->stringval[0] == 0) { + /* Get the VNC port */ + if (virXPathInt("string(/domain/devices/graphics[@type='vnc']/@port)", + ctxt, &port)) { + vshError(ctl, _("Failed to get VNC port. Is this domain using VNC?")); goto cleanup; } - if (virStrToLong_i((const char *)obj->stringval, NULL, 10, &port) || port < 0) - goto cleanup; - xmlXPathFreeObject(obj); - obj = xmlXPathEval(BAD_CAST "string(/domain/devices/graphics[@type='vnc']/@listen)", ctxt); - if (obj == NULL || obj->type != XPATH_STRING || - obj->stringval == NULL || obj->stringval[0] == 0 || - STREQ((const char*)obj->stringval, "0.0.0.0")) { + listen_addr = virXPathString("string(/domain/devices/graphics" + "[@type='vnc']/@listen)", ctxt); + if (listen_addr == NULL || STREQ((const char *)listen_addr, "0.0.0.0")) { vshPrint(ctl, ":%d\n", port-5900); } else { - vshPrint(ctl, "%s:%d\n", (const char *)obj->stringval, port-5900); + vshPrint(ctl, "%s:%d\n", (const char *)listen_addr, port-5900); } - xmlXPathFreeObject(obj); - obj = NULL; ret = true; cleanup: - xmlXPathFreeObject(obj); xmlXPathFreeContext(ctxt); xmlFreeDoc(xml); virDomainFree(dom); -- 1.7.3.4

2 1

[libvirt] [PATCH] Add support for guest bind mounts with LXC
by Daniel P. Berrange 25 Jun '12

25 Jun '12

From: "Daniel P. Berrange" <berrange(a)redhat.com> Currently you can configure LXC to bind a host directory to a guest directory, but not to bind a guest directory to a guest directory. While the guest container init could do this itself, allowing it in the libvirt XML means a stricter SELinux policy can be written --- src/conf/domain_conf.c | 7 +++++-- src/conf/domain_conf.h | 11 ++++++----- src/lxc/lxc_container.c | 7 +++++++ 3 files changed, 18 insertions(+), 7 deletions(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index a653fe6..8ce122e 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -263,7 +263,8 @@ VIR_ENUM_IMPL(virDomainFS, VIR_DOMAIN_FS_TYPE_LAST, "block", "file", "template", - "ram") + "ram", + "bind") VIR_ENUM_IMPL(virDomainFSDriverType, VIR_DOMAIN_FS_DRIVER_TYPE_LAST, "default", @@ -4260,7 +4261,8 @@ virDomainFSDefParseXML(xmlNodePtr node, if (!source && xmlStrEqual(cur->name, BAD_CAST "source")) { - if (def->type == VIR_DOMAIN_FS_TYPE_MOUNT) + if (def->type == VIR_DOMAIN_FS_TYPE_MOUNT || + def->type == VIR_DOMAIN_FS_TYPE_BIND) source = virXMLPropString(cur, "dir"); else if (def->type == VIR_DOMAIN_FS_TYPE_FILE) source = virXMLPropString(cur, "file"); @@ -11335,6 +11337,7 @@ virDomainFSDefFormat(virBufferPtr buf, switch (def->type) { case VIR_DOMAIN_FS_TYPE_MOUNT: + case VIR_DOMAIN_FS_TYPE_BIND: virBufferEscapeString(buf, " <source dir='%s'/>\n", def->src); break; diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index b8d9c87..bdb1f75 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -656,11 +656,12 @@ struct _virDomainControllerDef { /* Two types of disk backends */ enum virDomainFSType { - VIR_DOMAIN_FS_TYPE_MOUNT, /* Better named 'bind' */ - VIR_DOMAIN_FS_TYPE_BLOCK, - VIR_DOMAIN_FS_TYPE_FILE, - VIR_DOMAIN_FS_TYPE_TEMPLATE, - VIR_DOMAIN_FS_TYPE_RAM, + VIR_DOMAIN_FS_TYPE_MOUNT, /* Mounts (binds) a host dir on a guest dir */ + VIR_DOMAIN_FS_TYPE_BLOCK, /* Mounts a host block dev on a guest dir */ + VIR_DOMAIN_FS_TYPE_FILE, /* Loopback mounts a host file on a guest dir */ + VIR_DOMAIN_FS_TYPE_TEMPLATE, /* Expands a OS template to a guest dir */ + VIR_DOMAIN_FS_TYPE_RAM, /* Mount a RAM filesystem on a guest dir */ + VIR_DOMAIN_FS_TYPE_BIND, /* Binds a guest dir to another guest dir */ VIR_DOMAIN_FS_TYPE_LAST }; diff --git a/src/lxc/lxc_container.c b/src/lxc/lxc_container.c index b69255e..bf67ba1 100644 --- a/src/lxc/lxc_container.c +++ b/src/lxc/lxc_container.c @@ -1025,7 +1025,14 @@ static int lxcContainerMountFS(virDomainFSDefPtr fs, if (lxcContainerMountFSTmpfs(fs) < 0) return -1; break; + case VIR_DOMAIN_FS_TYPE_BIND: + if (lxcContainerMountFSBind(fs, "") < 0) + return -1; + break; case VIR_DOMAIN_FS_TYPE_FILE: + /* We do actually support this, but the lxc controller + * should have associated the file with a loopback + * device and changed this to TYPE_BLOCK for us */ lxcError(VIR_ERR_INTERNAL_ERROR, _("Unexpected filesystem type %s"), virDomainFSTypeToString(fs->type)); -- 1.7.10.2

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