A later patch will be adding some new fields to
virStorageFileMetadata; to minimize confusion, renaming the
test fields now will make it more obvious which fields are
being tested later.
* tests/virstoragetest.c (_testFileData): Alter names.
(testStorageChain, mymain): Adjust clients.
Signed-off-by: Eric Blake <eblake@redhat.com>
Right now, we are allocating virStorageFileMetadata near the bottom
of the callchain, only after we have identified that we are visiting
a file (and not a network resource). I'm hoping to eventually
support parsing the backing chain from XML, where the backing chain
crawl then validates what was parsed rather than allocating a fresh
structure. Likewise, I'm working towards a setup where we have a
backing element even for networks. Both of these use cases are
easier to code if the allocation is hoisted earlier.
* src/util/virstoragefile.c (virStorageFileGetMetadataInternal)
(virStorageFileGetMetadataFromFDInternal): Change signature.
(virStorageFileGetMetadataFromBuf)
(virStorageFileGetMetadataRecurse, virStorageFileGetMetadata):
Update callers.
Signed-off-by: Eric Blake <eblake@redhat.com>
The previous patch started a separation of error messages
reported against the user-specified name, vs. tracking the
canonical path that was actually opened. This patch extends
that notion, by hoisting directory detection up front, passing
the canonical path through the entire call chain, and
simplifying lower-level functions that can now assume that
a canonical path and directory have been supplied.
* src/util/virstoragefile.c
(virStorageFileGetMetadataFromFDInternal)
(virStorageFileGetMetadataInternal): Add parameter, require
directory.
(virFindBackingFile): Require directory.
(virStorageFileGetMetadataFromFD): Pass canonical path.
(virStorageFileGetMetadataFromBuf): Likewise.
(virStorageFileGetMetadata): Determine initial directory.
Signed-off-by: Eric Blake <eblake@redhat.com>
Refactor the function to avoid multiple wrappers splitting identical
fields from the now common metadata struct.
The refactor is done by folding in the wrapper used for disk sources
which allows us to lookup secrets via the secret driver. This may allow
using stored secrets for snapshot disk images too in the future.
Now that we store all metadata about a storage image in a
virStorageSource struct let's use it also to store information needed by
the storage driver to access and do operations on the files.
https://bugzilla.redhat.com/show_bug.cgi?id=1024159
If adding a volume to a storage pool fails during the CreateXML or
CreateXMLFrom API's, we don't want to adjust the available and
allocation values for the storage pool during storageVolDelete
since we haven't adjusted the values for the create.
Refactor storageVolDelete() a bit to create a storageVolDeleteInternal()
which will handle the primary deletion activities. Add a parameter
updateMeta which will signify whether to update the values or not.
Adjust the calls from CreateXML and CreateXMLFrom to directly call the
DeleteInternal with the pool lock held. This does bypass the call
to virStorageVolDeleteEnsureACL().
Introduced in commit d1e55de3.
virstoragetest.c: In function ‘testStorageChain’:
virstoragetest.c:249:10: warning: declaration of ‘abs’ shadows a global
declaration [-Wshadow]
Another reduction in the number of structs I have to modify
when I start tracking new fields in virStorageFileMetadata.
* tests/virstoragetest.c (_testFileData): Add fields.
(testStorageChain): Select between fields based on flag.
(mymain): Record both absolute and relative expectations in one
struct.
Signed-off-by: Eric Blake <eblake@redhat.com>
As I add more tests, it's getting harder to follow the split between
a struct in one place and a test using the struct in another.
Interleaving the tests makes changes more localized, and also makes
debugging easier when a test goes wrong during my refactoring work.
* tests/virstoragetest.c (mymain): Modify structs as we go, rather
than up-front.
(testStorageChain): Make failure debugging easier.
Signed-off-by: Eric Blake <eblake@redhat.com>
Part of the upcoming refactoring will change how broken chains
are detected; it makes sense to test that this works. In
particular, test the just-fixed infinite loop detection bug.
Also, make sure that detection of directories is sane.
* tests/virstoragetest.c (testStorageChain): Enhance test.
(mymain): Add more tests.
(testCleanupImages, testPrepImages): Populate a directory.
Signed-off-by: Eric Blake <eblake@redhat.com>
While trying to refactor the backing file chain, I noticed that
if you have a self-referential qcow2 file via a relative name:
qemu-img create -f qcow2 loop 10M
qemu-img rebase -u -f qcow2 -F qcow2 -b loop loop
then libvirt was creating a chain 2 deep before realizing it
had hit a loop; furthermore, virStorageFileChainCheckBroken
was not identifying the chain as broken. With this patch,
the loop is detected when the chain is only 1 deep; still
enough for storage volume XML to display the file, but now
with a proper error report about where the loop was found.
This patch adds a parameter to virStorageFileGetMetadataRecurse,
so that errors at the top of the chain remain unchanged; messages
issued for backing files now use the name provided by the user
instead of the canonical name (for VDSM, which uses relative
symlinks to device mapper block devices, this is actually more
useful).
* src/util/virstoragefile.c (virStorageFileGetMetadataRecurse):
Add parameter, require canonical path up front. Mark chain
broken on OOM or loop detection.
(virStorageFileGetMetadata): Pass in canonical name.
Signed-off-by: Eric Blake <eblake@redhat.com>
Fix incorrect ATTRIBUTE_NONNULL usage introduced in 17b17565
which caused build failure:
bhyve/bhyve_driver.c:127:48: error: expected ')'
bhyveDriverGetCapabilities(bhyveConnPtr driver ATTRIBUTE_NONNULL)
^
bhyve/bhyve_driver.c:127:27: note: to match this '('
bhyveDriverGetCapabilities(bhyveConnPtr driver ATTRIBUTE_NONNULL)
Pushed under the build breaker rule.
Commit b9dd878f (util: make it easier to grab only regular command exit)
changed the call semantics of virCommandRun() and therefore of virRun()
too. But lxcCheckNetNsSupport() was not updated.
As consequence of this lxcCheckNetNsSupport always failed and broke LXC.
Signed-off-by: Richard Weinberger <richard@nod.at>
Now that we ditched our custom pthread impl for Win32, we can
use PTHREAD_MUTEX_INITIALIZER for static mutexes. This avoids
the need to use a virOnce one-time global initializer in a
number of places.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Since it is an abbreviation, PCI should always be fully
capitalized or full lower case, never Pci.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Since it is an abbreviation, USB should always be fully
capitalized or full lower case, never Usb.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Since it is an abbreviation, SCSI should always be fully
capitalized or full lower case, never Scsi.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
A number of test suites want to mock the DBus APIs. To avoid
re-inventing the wheel create a re-usable virmockdbus.la
library for LD_PRELOAD usage.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Introduce virmock.h which provides some macros to assist in
creation of LD_PRELOAD overrides. When these are used, the
LD_PRELOAD code simply has some stubs which forward to a
wrapper function inside the main test case. This means that
logic for the test no longer has to be split between the
virXXXtest.c and virXXXmock.c files. It will also make it
possible to provide some common reusable modules for mocking
code like DBus.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Functions virNetDevRestoreMacAddress() and virNetDevRestoreMacAddress()
allocate memory for variable @path using virAsprintf(), but they
haven't freed that memory before returning out.
Signed-off-by: Zhang bo <oscar.zhangbo@huawei.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
At the beginning of the function we gain a reference to the driver
capabilities. Then, we call format function (*) which if failed, unref
over caps is called. Then, at the end another unref occurs.
* - Moreover, the format was not called over gained caps, but over
privconn->caps directly which is not allowed anymore.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
The driver passed as the only argument to the function should never be
NULL so there's no need to check it. After removing it, the whole
function collapses to a single line doing ref over driver
capabilities.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Since b15a2bbd we have the new bhyve_capabilities.[ch] files.
However, the copyright is held by both Roman and Semihalf.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
to avoid
CCLD storagevolxml2argvtest
/usr/bin/ld: ../src/.libs/libvirt_driver_storage_impl.a(libvirt_driver_storage_impl_la-storage_backend.o): undefined reference to symbol 'xmlFreeDoc@@LIBXML2_2.4.30'
//usr/lib/x86_64-linux-gnu/libxml2.so.2: error adding symbols: DSO missing from command line
I noticed that the apparmor code could request metadata even
for a cdrom with no media, which would cause a memory leak of
the hash table used to look for loops in the backing chain.
But even before that, we blindly dereferenced the path for
printing a debug statement, so it is just better to enforce
that this is only used on non-NULL names.
* src/util/virstoragefile.c (virStorageFileGetMetadata): Assume
non-NULL path.
* src/util/virstoragefile.h: Annotate this.
* src/security/virt-aa-helper.c (get_files): Fix caller.
Signed-off-by: Eric Blake <eblake@redhat.com>
Other drivers in libvirt (e.g. network, qemu) will automatically
return the "inactive" (persistent configuration) XML of an object when
that object is inactive. The netcf backend of the interface driver
would always try to return the live status XML of the interface, even
when it was down. Although netcf does return valid XML in that case,
for bond interfaces it is missing almost all of its content, including
the <bond> subelement itself, leading to this error message from
"virsh iface-dumpxml" of a bond interface that is inactive:
error: XML error: bond interface misses the bond element
(this is because libvirt's validation of the XML returned by netcf
always requires a <bond> element be present).
This patch modifies the interface driver netcf backend to check if the
interface is inactive, and in that case always return the inactive XML
(which will always have a <bond> element, thus eliminating the error
message, as well as making operation more in line with other drivers.
This fixes the following bug:
https://bugzilla.redhat.com/show_bug.cgi?id=878394
I almost wrote a hash value free function that just called
VIR_FREE, then realized I couldn't be the first person to
do that. Sure enough, it was worth factoring into a common
helper routine.
* src/util/virhash.h (virHashValueFree): New function.
* src/util/virhash.c (virHashValueFree): Implement it.
* src/util/virobject.h (virObjectFreeHashData): New function.
* src/libvirt_private.syms (virhash.h, virobject.h): Export them.
* src/nwfilter/nwfilter_learnipaddr.c (virNWFilterLearnInit): Use
common function.
* src/qemu/qemu_capabilities.c (virQEMUCapsCacheNew): Likewise.
* src/qemu/qemu_command.c (qemuDomainCCWAddressSetCreate):
Likewise.
* src/qemu/qemu_monitor.c (qemuMonitorGetBlockInfo): Likewise.
* src/qemu/qemu_process.c (qemuProcessWaitForMonitor): Likewise.
* src/util/virclosecallbacks.c (virCloseCallbacksNew): Likewise.
* src/util/virkeyfile.c (virKeyFileParseGroup): Likewise.
* tests/qemumonitorjsontest.c
(testQemuMonitorJSONqemuMonitorJSONGetBlockInfo): Likewise.
Signed-off-by: Eric Blake <eblake@redhat.com>
Commit d7c4e0036 assumed all SELinux tests depended upon
securityselinuxhelper need xattr support, but forgot to
move viridentitytest under WITH_ATTR.
Reported-by: Nehal J Wani <nehaljw.kkd1@gmail.com>
Signed-off-by: Jincheng Miao <jmiao@redhat.com>
The configure definition previously always defined the GLUSTER_CLI macro
and thus the code needing it wasn't compiled out if the tool wasn't
accessible.
Up until now the traffic control filters for the vNIC QoS were
matching only ip traffic. For egress traffic that was unnoticed
because the unmatched traffic would just go to the default htb class
and be shaped anyway. For ingress, though, since the policing of the
rate is done by the filter itself.
The problem is solved by changing protocol to all and making anything
match the filter.
Bug-Url: https://bugzilla.redhat.com/1084444
Signed-off-by: Antoni S. Puimedon <asegurap@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
nmdm is a FreeBSD driver which allows to create a pair of tty
devices one of which is passed to the guest and second is used
by the client.
This patch adds new 'nmdm' character device type. Its definition
looks this way:
<serial type='nmdm'>
<source master='/dev/nmdm0A' slave='/dev/nmdm0B'/>
</serial>
Master is passed to the hypervisior and slave is used for client
connection.
Also implement domainOpenConsole() for bhyve driver based on that.
Right now, virStorageFileMetadata tracks bool backingStoreIsFile
for whether the backing string specified in metadata can be
resolved as a file (covering both block and regular file
resources) or is treated as a network protocol. But when
merging this struct with virStorageSource, it will be easier
to just actually track which type of resource it is, as well
as have a reserved value for the case where the resource type
is unknown (or had an error during probing).
* src/util/virstoragefile.h (virStorageType): Add a placeholder
value, swap order to match similar public enum.
* src/util/virstoragefile.c (virStorage): Update string mapping.
* src/conf/domain_conf.c (virDomainDiskSourceParse)
(virDomainDiskDefParseXML, virDomainDiskDefFormat)
(virDomainDiskSourceFormat): Adjust clients.
* src/conf/snapshot_conf.c (virDomainSnapshotDiskDefParseXML):
Likewise.
* src/qemu/qemu_driver.c
(qemuDomainSnapshotPrepareDiskExternalBackingInactive)
(qemuDomainSnapshotPrepareDiskExternalOverlayActive)
(qemuDomainSnapshotPrepareDiskExternalOverlayInactive)
(qemuDomainSnapshotPrepareDiskInternal)
(qemuDomainSnapshotCreateSingleDiskActive): Likewise.
* src/qemu/qemu_command.c (qemuGetDriveSourceString): Likewise.
Signed-off-by: Eric Blake <eblake@redhat.com>
