Introduced by commit 15ad2ecf114d. Signed-off-by: Martin Kletzander <mkletzan(a)redhat.com&gt; --- src/qemu/qemu_domain.c | 1 + 1 file changed, 1 insertion(+) diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index 3b152893a23a..a2f981043915 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -1714,6 +1714,7 @@ qemuDomainDefPostParse(virDomainDefPtr def, ret = 0; cleanup: virObjectUnref(qemuCaps); + virObjectUnref(cfg); return ret; } -- 2.8.1

Similarly to what commit 714080791778 did with some internal paths, clear vnc socket paths that were generated by us. Having such path in the definition can cause trouble when restoring the domain. The path is generated to the per-domain directory that contains the domain ID. However, that ID will be different upon restoration, so qemu won't be able to create that socket because the directory will not be prepared. Best viewed with '-C'. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1326270 Signed-off-by: Martin Kletzander <mkletzan(a)redhat.com&gt; --- src/qemu/qemu_domain.c | 21 +++++++++++- .../qemuxml2argv-graphics-vnc-autosocket.args | 22 ++++++++++++ .../qemuxml2argv-graphics-vnc-autosocket.xml | 34 +++++++++++++++++++ .../qemuxml2xmlout-graphics-vnc-autosocket.xml | 39 ++++++++++++++++++++++ tests/qemuxml2xmltest.c | 7 ++++ 5 files changed, 122 insertions(+), 1 deletion(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc-autosocket.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc-autosocket.xml create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-graphics-vnc-autosocket.xml diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index a2f981043915..d6f704d6f91b 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -1659,10 +1659,26 @@ qemuCanonicalizeMachine(virDomainDefPtr def, virQEMUCapsPtr qemuCaps) } +static void +qemuDomainCleanupInternalPaths(virDomainDefPtr def, virQEMUDriverConfigPtr cfg) +{ + size_t i = 0; + + for (i = 0; i < def->ngraphics; ++i) { + virDomainGraphicsDefPtr graphics = def->graphics[i]; + + if (graphics->type == VIR_DOMAIN_GRAPHICS_TYPE_VNC && + graphics->data.vnc.socket && + STRPREFIX(graphics->data.vnc.socket, cfg->libDir)) + VIR_FREE(graphics->data.vnc.socket); + } +} + + static int qemuDomainDefPostParse(virDomainDefPtr def, virCapsPtr caps, - unsigned int parseFlags ATTRIBUTE_UNUSED, + unsigned int parseFlags, void *opaque) { virQEMUDriverPtr driver = opaque; @@ -1708,6 +1724,9 @@ qemuDomainDefPostParse(virDomainDefPtr def, qemuDomainDefEnableDefaultFeatures(def); + if (parseFlags & VIR_DOMAIN_DEF_PARSE_INACTIVE) + qemuDomainCleanupInternalPaths(def, cfg); + if (virSecurityManagerVerify(driver->securityManager, def) < 0) goto cleanup; diff --git a/tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc-autosocket.args b/tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc-autosocket.args new file mode 100644 index 000000000000..7e1fb6b3717f --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc-autosocket.args @@ -0,0 +1,22 @@ +LC_ALL=C \ +PATH=/bin \ +HOME=/home/test \ +USER=test \ +LOGNAME=test \ +QEMU_AUDIO_DRV=none \ +/usr/bin/qemu \ +-name QEMUGuest1 \ +-S \ +-M pc \ +-m 214 \ +-smp 1 \ +-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \ +-nodefaults \ +-monitor unix:/tmp/lib/domain--1-QEMUGuest1/monitor.sock,server,nowait \ +-no-acpi \ +-boot c \ +-usb \ +-drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-ide0-0-0 \ +-device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 \ +-vnc unix:/tmp/lib/domain--1-QEMUGuest1/vnc.socket \ +-vga cirrus diff --git a/tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc-autosocket.xml b/tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc-autosocket.xml new file mode 100644 index 000000000000..fa59c39873a5 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc-autosocket.xml @@ -0,0 +1,34 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory unit='KiB'>219100</memory> + <currentMemory unit='KiB'>219100</currentMemory> + <vcpu placement='static'>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'> + <driver name='qemu' type='raw'/> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='ide'/> + <address type='drive' controller='0' bus='0' target='0' unit='0'/> + </disk> + <controller type='usb' index='0'/> + <controller type='ide' index='0'/> + <controller type='pci' index='0' model='pci-root'/> + <input type='mouse' bus='ps2'/> + <input type='keyboard' bus='ps2'/> + <graphics type='vnc' socket='/tmp/lib/domain-99-QEMUGuest1/delete.this.socket'/> + <video> + <model type='cirrus' vram='16384' heads='1'/> + </video> + <memballoon model='none'/> + </devices> +</domain> diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-graphics-vnc-autosocket.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-graphics-vnc-autosocket.xml new file mode 100644 index 000000000000..744053368745 --- /dev/null +++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-graphics-vnc-autosocket.xml @@ -0,0 +1,39 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory unit='KiB'>219100</memory> + <currentMemory unit='KiB'>219100</currentMemory> + <vcpu placement='static'>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'> + <driver name='qemu' type='raw'/> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='ide'/> + <address type='drive' controller='0' bus='0' target='0' unit='0'/> + </disk> + <controller type='usb' index='0'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/> + </controller> + <controller type='ide' index='0'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> + </controller> + <controller type='pci' index='0' model='pci-root'/> + <input type='mouse' bus='ps2'/> + <input type='keyboard' bus='ps2'/> + <graphics type='vnc' port='-1' autoport='yes'/> + <video> + <model type='cirrus' vram='16384' heads='1' primary='yes'/> + <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> + </video> + <memballoon model='none'/> + </devices> +</domain> diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c index f766f4dc521e..62f8f96c2274 100644 --- a/tests/qemuxml2xmltest.c +++ b/tests/qemuxml2xmltest.c @@ -263,6 +263,7 @@ mymain(void) { int ret = 0; struct testInfo info; + virQEMUDriverConfigPtr cfg = NULL; if (qemuTestDriverInit(&driver) < 0) return EXIT_FAILURE; @@ -774,6 +775,12 @@ mymain(void) DO_TEST("virtio-input"); DO_TEST("virtio-input-passthrough"); + cfg = virQEMUDriverGetConfig(&driver); + cfg->vncAutoUnixSocket = true; + DO_TEST_FULL("graphics-vnc-autosocket", WHEN_INACTIVE, NONE); + cfg->vncAutoUnixSocket = false; + + virObjectUnref(cfg); qemuTestDriverFree(&driver); return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE; -- 2.8.1

On Wed, Apr 27, 2016 at 06:24:43AM +0200, Pavel Hrdina wrote: That would introduce another loop over devices and one of the main points of DevicePostParse is not having to do that. It is enough, but I agree that's not the root cause. Even though this will fix it when migrating to new libvirt from whatever version, we want to be able to do migrate from version with this patch in, so I'll amend that. However, we cannot do that because we would erase that from the live XML. What we need to do instead is make sure we don't format that path if flags & VIR_DOMAIN_FORMAT_XML_MIGRATABLE is true (or whatever the flag name is). I'll send a v2 with that

On Wed, Apr 27, 2016 at 11:36:19AM +0200, Pavel Hrdina wrote: But then we'll have it in two places. We need to keep it in the DevicePostParse due to hotplug reasons. Oh yep, my bad, but instead of clearing it we should really just not format it. Otherwise simple 'virsh dumpxml --migratable ' will delete it forever.

On Wed, Apr 27, 2016 at 02:07:57PM +0200, Pavel Hrdina wrote: That's probably the way I'll go because modifying xmlopt for that is pretty ugly. I'll send a v2 with that.