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Unify the two distinct disk definition validators.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Consolidate the checks for '<reservations/>' and viritio queues under
already existing blocks which have the same condition.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
There's no code which would assert it at this point. Remove the flag.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Extract all code related to parsing data which ends up in the 'src'
member of a virDomainDiskDef.
This allows to use the new function directly in
virDomainDiskDefParseSource and removes the use of the
VIR_DOMAIN_DEF_PARSE_DISK_SOURCE parser flag.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Separate the validation of the source so that it can be reused once we
split up the XML parser too.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The <disk> XML element parser is going to be modified so that the
virStorageSource bits are pre-parsed. Add virDomainDiskDefNewSource,
which uses an existing 'src' pointer.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
qemuDomainBlockCopy needs just the source portion of the disk but uses
the disk parser for it. Since we have a specific function now, refactor
the code to avoid having to deal with the unused virDomainDiskDef.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Add a helper function which will parse the source portion of a <disk>.
The idea is to replace *virDomainDiskDefParse with
VIR_DOMAIN_DEF_PARSE_DISK_SOURCE with the new helper in the future.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Use the new macro instead of virXMLParseStringCtxt in places where the
root node is being validated.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Some callers want to validate the root XML node name. Add the capability
to the parser helper to prevent open-coding.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Currently translated at 20.3% (2154 of 10581 strings)
Translation: libvirt/libvirt
Translate-URL: https://translate.fedoraproject.org/projects/libvirt/libvirt/fi/
Co-authored-by: Jan Kuparinen <copper_fin@hotmail.com>
Signed-off-by: Jan Kuparinen <copper_fin@hotmail.com>
Currently translated at 33.8% (3577 of 10581 strings)
Translation: libvirt/libvirt
Translate-URL: https://translate.fedoraproject.org/projects/libvirt/libvirt/ko/
Co-authored-by: SeongHyun Jo <caelus9536@gmail.com>
Signed-off-by: SeongHyun Jo <caelus9536@gmail.com>
This allows users to restrict memory nodes without setting any specific
memory policy, then 'restrictive' mode is useful.
Signed-off-by: Luyao Zhong <luyao.zhong@intel.com>
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The command line argument is called --hanshakefd (check out
lxc_controller.c:main()). But the command line builder puts only
--handshake. This works, because there is no other argument
sharing the prefix.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
I've encountered the following bug, but only on Gentoo with
systemd and CGroupsV2. I've started an LXC container successfully
but destroying it reported the following error:
error: Failed to destroy domain 'amd64'
error: internal error: failed to get cgroup backend for 'pathOfController'
Debugging showed, that CGroup hierarchy is full of surprises:
/sys/fs/cgroup/machine.slice/machine-lxc\x2d861\x2damd64.scope/
└── libvirt
├── dev-hugepages.mount
├── dev-mqueue.mount
├── init.scope
├── sys-fs-fuse-connections.mount
├── sys-kernel-config.mount
├── sys-kernel-debug.mount
├── sys-kernel-tracing.mount
├── system.slice
│ ├── console-getty.service
│ ├── dbus.service
│ ├── system-getty.slice
│ ├── system-modprobe.slice
│ ├── systemd-journald.service
│ ├── systemd-logind.service
│ └── tmp.mount
└── user.slice
For comparison, here's the same container on recent Rawhide:
/sys/fs/cgroup/machine.slice/machine-lxc\x2d13550\x2damd64.scope/
└── libvirt
Anyway, those nested directories should not be a problem, because
virCgroupKillRecursiveInternal() removes them recursively, right?
Sort of. The function really does remove nested directories, but
it assumes that every directory has the same controller as the
rest. Just take a look at virCgroupV2KillRecursive() - it gets
'Any' controller (the first one it found in ".scope") and then
passes it to virCgroupKillRecursiveInternal().
This assumption is not true though. The controllers found in
".scope" are the following:
cpuset cpu io memory pids
while "libvirt" has fewer:
cpuset cpu io memory
Up until now it's not problem, because of how we order
controllers internally - "cpu" is the first and thus picking
"Any" controller returns just that. But the rest of directories
has no controllers, their "cgroup.controllers" is just empty.
What fixes the bug is dropping @controller argument from
virCgroupKillRecursiveInternal() and letting each iteration work
pick its own controller.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
The VIR_CGROUP_BACKEND_CALL() macro gets a backend for controller
and calls corresponding callback in it. If either is NULL then an
error message is printed out. However, the error message contains
only the intended callback func and not controller or backend
found.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Currently, only a subset of virCgroupKillRecursiveInternal()
arguments is printed into debug logs. Print all of them.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
virDomainGetDiskErrors uses the weird semantics where we make the
caller query for the number of elements and then pass pre-allocated
structure.
The cleanup section errorneously used the 'count' variable to free the
allocated elements for the API but 'count' can be '-1' in cases when the
API returns failure, thus attempting to free beyond the end of the
array.
Resolves: https://gitlab.com/libvirt/libvirt/-/issues/155
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Use the appropriate type for the variable and refactor the XML parser to
parse it correctly using virXMLPropEnum.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Tim Wiederhake <twiederh@redhat.com>
Use the appropriate type for the variable and refactor the XML parser to
parse it correctly using virXMLPropEnum.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Tim Wiederhake <twiederh@redhat.com>
Commit 95f8e3237e which introduced XML schema validation
for snapshot XMLs always asserted the validation for the XML generated
by 'virsh snapshot-create-as' on the basis that it's libvirt-generated,
thus valid.
This unfortunately isn't true as users can influence certain bits of the
XML such as the disk image path which must be a full path. Thus if a
user tries to invoke virsh as:
$ virsh snapshot-create-as upstream --diskspec vda,file=relative.qcow2
error: XML document failed to validate against schema: Unable to validate doc against /path/to/domainsnapshot.rng
Extra element disks in interleave
Element domainsnapshot failed to validate content
They get a rather useless error from the libxml2 RNG validator.
With this fix applied, we get to the XML parser in libvirtd which has a
more reasonable error:
$ virsh snapshot-create-as upstream --diskspec vda,file=relative.qcow2
error: XML error: disk snapshot image path 'relative.qcow2' must be absolute
Instead users can force validation of the XML generated by 'virsh
snapshot-create-as' by passing the '--validate' flag.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Convenience function to return the value of an enum XML attribute.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Convenience function to return the value of an unsigned integer XML attribute.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Convenience function to return the value of an integer XML attribute.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Convenience function to return the value of an on / off XML attribute.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Convenience function to return the value of a yes / no XML attribute.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Switch @xml and @pctxt to g_autofree and get rid of the "error" and
"cleanup" labels.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Tim Wiederhake <twiederh@redhat.com>
Move the reporting of parsing error on the error path of the parser as
other code paths report their own errors already.
Additionally prefer printing the 'url' as document name if provided
instead of "[inline data]" as that usually gives a better hint at least
which kind of XML is being parsed.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Tim Wiederhake <twiederh@redhat.com>
Remove the "block" formatting of function declarations and use uniform
spacing.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Tim Wiederhake <twiederh@redhat.com>
Note that the comment for virStoragePoolSourceDevice::part_separator was wrong.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Note that the comment for virStorageAdapterFCHost::managed was wrong.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
