The existing qemu snapshot code has a slight bug: if the domain is currently pmsuspended, you can't use the _REDEFINE flag even though the current domain state should have no bearing on being able to recreate metadata state; and conversely, you can use the _REDEFINE flag to create snapshot metadata claiming to be pmsuspended as a bypass to the normal restrictions that you can't create an original qemu snapshot in that state (the restriction against pmsuspend is specific to qemu, rather than part of the driver-agnostic snapshot_conf code).
Fix this by checking the snapshot state (when redefining) instead of the domain state (which is a subset of snapshot states). Fixes the second problem mentioned in https://bugzilla.redhat.com/1680304 Signed-off-by: Eric Blake <ebl...@redhat.com> --- src/qemu/qemu_driver.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 1d5b5f8653..36426cd65a 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -15693,6 +15693,7 @@ qemuDomainSnapshotCreateXML(virDomainPtr domain, virQEMUDriverConfigPtr cfg = NULL; virCapsPtr caps = NULL; qemuDomainObjPrivatePtr priv; + virDomainState state; virCheckFlags(VIR_DOMAIN_SNAPSHOT_CREATE_REDEFINE | VIR_DOMAIN_SNAPSHOT_CREATE_CURRENT | @@ -15776,7 +15777,11 @@ qemuDomainSnapshotCreateXML(virDomainPtr domain, } /* allow snapshots only in certain states */ - switch ((virDomainState) vm->state.state) { + state = vm->state.state; + if (redefine) + state = def->state == VIR_DOMAIN_DISK_SNAPSHOT ? VIR_DOMAIN_SHUTOFF : + def->state; + switch (state) { /* valid states */ case VIR_DOMAIN_RUNNING: case VIR_DOMAIN_PAUSED: @@ -15796,7 +15801,7 @@ qemuDomainSnapshotCreateXML(virDomainPtr domain, case VIR_DOMAIN_BLOCKED: /* invalid state, unused in qemu */ case VIR_DOMAIN_LAST: virReportError(VIR_ERR_INTERNAL_ERROR, _("Invalid domain state %s"), - virDomainStateTypeToString(vm->state.state)); + virDomainStateTypeToString(state)); goto cleanup; } -- 2.20.1 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
