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Some caps are cleared according to some more advanced logic after
detection. Split all that logic out into virQEMUCapsInitProcessCaps.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
virQEMUCapsInitQMPMonitor is massive now since it collects calls to the
various probing functions and also version based capabilities. Split
out the version based caps into a separate function.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
A helper function that takes a XML node with a "size"
and "unit" attributes and converts it into a human-readable string.
Reduce the size and number of variables in the parent function.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Now that we have a shared cleanup section everywhere,
delete all the 'error' labels which all contain just 'goto cleanup'
anyway.
Also remove all the 'cleanup' labels that only 'return ret' - we
can simply return NULL instead of jumping to that label.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
We've been open-coding virStringListFreeCount for cleaning up
the completion list we're building. This had the advantage of
zeoring the pointer afterwards, which is no longer needed
now that we compile the list in 'tmp' instead of 'ret'.
Since all our lists are NULL-terminated anyway, switch to using
virStringListFree via the VIR_AUTOSTRINGLIST macro.
Fixes nearly impossible NULL dereferences in
virshNWFilterBindingNameCompleter
virshNWFilterNameCompleter
virshNodeDeviceNameCompleter
virshNetworkNameCompleter
virshInterfaceNameCompleter
virshStoragePoolNameCompleter
virshDomainNameCompleter
which jumped on the error label after a failed allocation
and a possible one in
virshStorageVolNameCompleter
which jumped there when we fail to fetch the list of volumes.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Unify the cleanup paths for error and success.
Now that 'ret' is only set (from tmp) on the success path,
it is safe to jump right before 'return ret' after processing
the error block.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Construct the potential return value in an array called 'tmp'
and only assign it to 'ret' if we're going to return it.
This will allow us to unify the error and success paths.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
The layout of my home directory is somewhat peculiar: I store
all git repositories in ~/src/upstream, but since I spend
almost all of my time hacking on libvirt, I also have a
convenience symlink ~/src/libvirt -> ~/src/upstream/libvirt
that I use to access that specific git repository.
The above setup has served me well for years; however, ever
since commit ca1471622d dropped our own custom definitions
for abs_{,top_}{src,build}dir and started using the ones
provided by autotools, virstoragetest has started reliably
failing with errors such as
2) Storage backing chain 2 ...
Offset 0
Expect [chain member: 0
path:/home/abologna/src/upstream/libvirt/tests/virstoragedata/raw
backingStoreRaw: <null>
capacity: 0
encryption: 0
relPath:<null>
type:1
format:1
protocol:none
hostname:<null>
]
Actual [chain member: 0
path:/home/abologna/src/libvirt/tests/virstoragedata/raw
backingStoreRaw: <null>
capacity: 0
encryption: 0
relPath:<null>
type:1
format:1
protocol:none
hostname:<null>
]
... FAILED
Using abolute paths instead of canonical ones in the tests makes
the problem go away.
Note that all tests that are specifically designed to test path
canonicalization via TEST_PATH_CANONICALIZE() were passing even
before this patch and are not touched by it.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Acked-by: Michal Privoznik <mprivozn@redhat.com>
The files no longer exist, at least not in their previous form,
so references to them need to be reworked to still make sense.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This file contains the old school ChangeLog, which was manually
updated for every set of changes before the switch to git.
When libvirt was imported into git, however, *all* history was
preserved, including the changes documented in this file, and
can still be inspected using 'git log' just like more recent
changes: the format might be slightly different, but that's not
quite reason enough to treat this file any differently than the
git-generated ChangeLog we just dropped.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Our ChangeLog is generated by basically redirecting the output
of 'git log' into it so, as can be expected, it has only gotten
bigger as development has progressed. As of today, its size has
reached pretty much comical levels:
$ du -sk ChangeLog
11328 ChangeLog
All of that for information *literally nobody* cares about: end
users and distro maintainers have proper release notes lovingly
compiled for them, while developers peruse the history either by
calling 'git log' directly or through their favorite $EDITOR's
git integration.
Replacing the generated ChangeLog with a short message pointing
interested parties to the git repository does not only reduce
the size of the unpacked sources from 259904 KiB to 248576 KiB
(~4% saving): from a quick test on my laptop, doing so reduces
the size of the *compressed* release archive from 15140 KiB to
12364 KiB (~18% saving) and also takes the time needed to run
'make distcheck' down from 4:44 to 4:21 (~8% saving).
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Add hppa, nios2, or1k, riscv32 and riscv64 to the profile.
Fixes: https://bugs.debian.org/914940
Signed-off-by: intrigeri <intrigeri@boum.org>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
The VM Manager app is no longer present on the Play store and while
Google shows a couple of hits they look like the typical untrustworthy
3rd party download redistributors rather than an official site.
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The page we link to is a 404 and github repo hasn't been touched since
2012 so is clearly dead.
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The libvirt specific page linked for buildbot is a 404. This replacement
link is the closest to what was originally linked.
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The project website http://archipelproject.org/ is dead, reporting a
cloudflare error message
The git repo at https://github.com/ArchipelProject/Archipel/ hasn't
had a commit since Nov 2016, and the last release was a beta6 release
in 2013.
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Update the wording to note the values for polling are purely dynamic
and won't be saved across domain stop/(re)start or save/restore.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Laine Stump <laine@laine.org>
Check that the attribute is the same in qemuDomainDiskChangeSupported
in case somebody tries to change it using the UpdateDevice API.
https://bugzilla.redhat.com/show_bug.cgi?id=1601677
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Laine Stump <laine@laine.org>
https://bugzilla.redhat.com/show_bug.cgi?id=1601677
This reverts commit 047cfb05ee
Using numeric comparison on strings means we reject every update
that does include the group name, even if it's unchanged.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Laine Stump <laine@laine.org>
Most of our completers used the pattern:
if ((nITEM = virITEMListAll()) < 0)
return NULL;
but the virDomainSnapshot and virStorageVolume completers were instead
using goto error. If the ListAll fails with -1, the cleanup label was
running a loop of 'size_t i < int nITEM', which is an extreme waste of
CPU cycles. Broken since their introduction in v4.1.
Fixes: f81f8b62
Fixes: 4cb4b649
Reported-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Even though Coverity can prove that 'last' is always set if the prior
loop executed, gcc 8.0.1 cannot:
CC conf/libvirt_conf_la-virdomainmomentobjlist.lo
../../src/conf/virdomainmomentobjlist.c: In function 'virDomainMomentMoveChildren':
../../src/conf/virdomainmomentobjlist.c:178:19: error: 'last' may be used uninitialized in this function [-Werror=maybe-uninitialized]
last->sibling = to->first_child;
~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
Rewrite the loop to a form that should be easier for static analysis
to work with.
Fixes: ced0898f86
Reported-by: Bjoern Walk <bwalk@linux.ibm.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
commit edaf13565 modified the stats retrieval for OVS interfaces to
not fail when one of the fields was unrecognized by the ovs-vsctl
command, but ovs-vsctl was still returning an error, and libvirt was
cluttering the logs with these inconsequential error messages.
This patch modifies the GET_STAT macro to add "--if-exists" to the
ovs-vsctl command, which causes it to return an empty string (and exit
with success) if the requested statistic isn't in its database, thus
eliminating the ugly error messages from the log.
Resolves: https://bugzilla.redhat.com/1683175
Signed-off-by: Laine Stump <laine@laine.org>
The warning is reported at a code path which already reports a proper
error so it's pointless to add yet another line into logs.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Avoid the extra parameter passing in the disk 'dst' parameter to be
reported instead of the device alias. Using 'dst' instead of alias does
not add much value.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
qemuDomainRemoveDiskDevice calls qemuDomainReleaseDeviceAddress which
already calls virDomainUSBAddressRelease so we don't need to call it
again.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Introduced in fdf6c89ee7, this dependency looks weird. It was
needed because of the way that while() loop was written - it
fetches next argument in every iteration. Therefore, our only
option was for ARG_END to have the same value as QEMU_CAPS_LAST.
This also meant that QEMU_CAPS_* could have been only at the end
of the __VA_ARGS__.
This commit reworks the while() loop and removes the dependency.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
There is one specific caller (testInfoSetArgs() in
qemuxml2argvtest.c) which expect the va_list argument to change
after returning from the virQEMUCapsSetVAList() function.
However, since we are passing plain va_list this is not
guaranteed. The man page of stdarg(3) says:
If ap is passed to a function that uses va_arg(ap,type), then
the value of ap is undefined after the return of that function.
(ap is a variable of type va_list)
I've seen this in action in fact: on i686 the qemuxml2argvtest
fails on the second test case because testInfoSetArgs() sees
ARG_QEMU_CAPS and calls virQEMUCapsSetVAList to process the
capabilities (in this case there's just one
QEMU_CAPS_SECCOMP_BLACKLIST). But since the changes are not
reflected in the caller, in the next iteration testInfoSetArgs()
sees the QEMU capability and not ARG_END.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
The mock fopen() function will abort if "/proc/mounts" is
requested with "r" permissions and VIR_CGROUP_MOCK_FILENAME
env var is not set.
Unfortunately this is triggering by the libselinux library
constructor when it tries to read /proc/mounts to find out
if selinuxfs is mounted in an unusual place.
This, however, only affects libselinux in Debian as that
opens with "r", while in Fedora / RHEL it opens "re" and
thus luckily never triggered the abort(), instead getting
an EACCESS.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This reverts commit 6b90a84738.
It turns out gcc -O2 is not happy with it, complaining:
/home/pipo/libvirt/src/qemu/qemu_driver.c: In function 'qemuDomainSnapshotCreateXML':
/home/pipo/libvirt/src/qemu/qemu_driver.c:15389:26: error: potential null pointer dereference [-Werror=null-dereference]
bool memory = snapdef->memory == VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL;
~~~~~~~^~~~~~~~
/home/pipo/libvirt/src/qemu/qemu_driver.c:15389:26: error: potential null pointer dereference [-Werror=null-dereference]
In file included from /home/pipo/libvirt/src/util/virbuffer.h:27,
from /home/pipo/libvirt/src/conf/capabilities.h:27,
from /home/pipo/libvirt/src/conf/domain_conf.h:32,
from /home/pipo/libvirt/src/qemu/qemu_agent.h:26,
from /home/pipo/libvirt/src/qemu/qemu_driver.c:40:
/home/pipo/libvirt/src/util/viralloc.h:125:34: error: potential null pointer dereference [-Werror=null-dereference]
# define VIR_ALLOC_N(ptr, count) virAllocN(&(ptr), sizeof(*(ptr)), (count), true, \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
VIR_FROM_THIS, __FILE__, __FUNCTION__, __LINE__)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/pipo/libvirt/src/qemu/qemu_driver.c:15103:9: note: in expansion of macro 'VIR_ALLOC_N'
if (VIR_ALLOC_N(ret, snapdef->ndisks) < 0)
^~~~~~~~~~~
/home/pipo/libvirt/src/qemu/qemu_driver.c:15798:45: error: null pointer dereference [-Werror=null-dereference]
virDomainSnapshotObjGetDef(snap)->memory == VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL) {
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
As the patch simplified one or two callers at the risk of making
many other callers now candidates to trigger aggressive compiler
warnings, it isn't worth it.
Signed-off-by: Eric Blake <eblake@redhat.com>
Use the common base class virDomainMoment for iterator callbacks
related to snapshots from the qemu code, so that when checkpoint
operations are introduced, they can share the same callbacks.
Simplify the code for qemuDomainSnapshotCurrent by better utilizing
virDomainMoment helpers.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
The qemu driver already had a full-blown virDomainMomentObjPtr to
check against, and the test driver ought to have one since we get
better error checking that the user passed in a valid object. Removes
the need for a helper function added in commit commit 4819f54b.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
ldconfig needs to be called after installing or uninstalling
shared libraries.
For a very long time, libvirt didn't have a separate package
containing just the shared libraries, and so it shipped them
in the same one as the clients.
Since commit 70b4f0e719, however, shared libraries have been
moved from -client to their own -libs package; unfortunately,
the corresponding ldconfig calls were not moved at the same
time, which is what this commit takes care of.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
The VIR_MIGRATE_PARALLEL flag is implemented using QEMU's multifd
migration capability and the corresponding multifd-channels migration
parameter.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
This patch adds a new VIR_MIGRATE_PARALLEL flag for migration APIs which
will ask the hypervisor to use multiple parallel connections for
migrating a domain. The number of parallel connections can be set using
VIR_MIGRATE_PARAM_PARALLEL_CONNECTIONS typed parameter.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Prepare for introducing a bunch of new public APIs related to
backup checkpoints by first introducing a new internal type
and errors associated with that type. Checkpoints are modeled
heavily after virDomainSnapshotPtr (both represent a point in
time of the guest), although a snapshot exists with the intent
of rolling back to that state, while a checkpoint exists to
make it possible to create an incremental backup at a later
time.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Since I was copying this text to form checkpoint XML and API
documentation, I might as well make improvements along the way. Most
of these changes are based on reviews of the checkpoint docs.
Among other things: grammar tweaks, point to a single source of
documentation rather than repeating verbosity, reword things for
easier legibility.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
