Each unique event ID will thus be composed by 1 byte for the namespace
and 1 byte for a namespace-specific ID. The namespace for domain event
needs to be 0 for compatibility reasons.
SIGHUP is commonly used to instruct a daemon to reload its config. For
now we should handle it in virtlockd just like SIGUSR1, rather than
having it kill the process.
Signed-off-by: Michael Chapman <mike@very.puzzling.org>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
- Use SIGUSR1, not SIGHUP, on reload. At present, virtlockd only
responds to the former.
- Fix PID file for virtlockd.
- Do not start virtlockd in any runlevels by default. It needs to be
explicitly selected in libvirt's qemu.conf anyway, so there is no
need to have it running on all systems regardless.
- Fix chkconfig priorities to ensure virtlockd is started before
libvirtd is started, and stopped after libvirtd is stopped.
- Add "Should-Start: virtlockd" to the libvirtd initscript's LSB header,
for the same reason.
- Add "Default-Stop" to both libvirtd and virtlockd initscripts. LSB
does not guarantee that this defaults to the inverse of
"Default-Start".
Signed-off-by: Michael Chapman <mike@very.puzzling.org>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
- Pass VIRTLOCKD_ARGS through to virtlockd.
- Use SIGUSR1, not SIGHUP, in ExecReload. At present, virtlockd only
responds to the former.
- Have "systemctl enable virtlockd.service" enable virtlockd.socket,
rather than throw an error.
- Make virtlockd.socket wanted by sockets.target, rather than
multi-user.target. This is consistent with other socket units in
Fedora, and it ensures that the socket is available before libvirtd is
started.
Signed-off-by: Michael Chapman <mike@very.puzzling.org>
When changing memtune limits to unlimited with AFFECT_CONFIG, the
values in virDomainDef are set to PARAM_UNLIMITED, which causes the
whole <memtune> to be formatted. This can be changed in all drivers,
but it also makes sense to use the default (0) as another value for
"unlimited", since zero memory limit makes no sense.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
For dead domains that have no memtune limits, we return 0 instead of
"unlimited", this patch fixes it to return PARAM_UNLIMITED.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Since kernel 3.12 (commit 34ff8dc08956098563989d8599840b130be81252 in
linux-stable.git in particular) the value for 'unlimited' in cgroup
memory limits changed from LLONG_MAX to ULLONG_MAX. Due to rather
unfortunate choice of our VIR_DOMAIN_MEMORY_PARAM_UNLIMITED constant
(which we transfer as an unsigned long long in Kibibytes), we ended up
with the situation described below (applies to x86_64):
- 2^64-1 (ULLONG_MAX) -- "unlimited" in kernel = 3.12
- 2^63-1 (LLONG_MAX) -- "unlimited" in kernel < 3.12
- 2^63-1024 -- our PARAM_UNLIMITED scaled to Bytes
- 2^53-1 -- our PARAM_UNLIMITED unscaled (in Kibibytes)
This means that when any number within (2^63-1, 2^64-1] is read from
memory cgroup, we are transferring that number instead of "unlimited".
Unfortunately, changing VIR_DOMAIN_MEMORY_PARAM_UNLIMITED would break
ABI compatibility and thus we have to resort to a different solution.
With this patch every value greater than PARAM_UNLIMITED means
"unlimited". Even though this may seem misleading, we are already in
such unclear situation when running 3.12 kernel with memory limits set
to 2^63.
One example showing most of the problems at once (with kernel 3.12.2):
# virsh memtune asdf --hard-limit 9007199254740991 --swap-hard-limit -1
# echo 12345678901234567890 >\
/sys/fs/cgroup/memory/machine/asdf.libvirt-qemu/memory.soft_limit_in_bytes
# virsh memtune asdf
hard_limit : 18014398509481983
soft_limit : 12056327051986884
swap_hard_limit: 18014398509481983
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
We were unconditionally removing the device from the host list, when it
should only be done on error.
This fixes USB collision detection when hotplugging the same device to
two guests.
If we hit a collision, we free the USB device while it is still part
of our temporary USBDeviceList. When the list is unref'd, the device
is free'd again.
Make the initial device freeing dependent on whether it is present
in the temporary list or not.
Similar to what Jiri did for cgroup setup/teardown in 05e149f94, push
it all into the device handler functions so we can do the necessary prep
work before claiming the device.
This also fixes hotplugging USB devices by product/vendor (virt-manager's
default behavior):
https://bugzilla.redhat.com/show_bug.cgi?id=1016511
Currently, if virFileMakePath() fails, the @ret is left initialized from
virAsprintf() just a few lines above leading to a wrong return value of
zero whereas -1 should be returned.
Signed-off-by: Chen Hanxiao <chenhanxiao@cn.fujitsu.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1035108
When attempting to enable more vCPUs in the guest than is currently
enabled in the guest but less than the maximum count for the VM we
currently reported an unhelpful message:
error: internal error: guest agent reports less cpu than requested
This patch changes it to:
error: invalid argument: requested vcpu count is greater than the count
of enabled vcpus in the domain: 3 > 2
https://bugzilla.redhat.com/show_bug.cgi?id=1035118
When outputting the XML for the RNG device, the code didn't format the
PCI address info. Additionally the schema wasn't expecting the info
although it was being parsed and used internally. Fix those mistakes and
add test for the PCI info section.
When changing the parsing and formatting functions in commit
43f2ccdc73 I forgot to update the qemu
disk alignment function for snapshots that automatically adds snapshot
configs for disks that were not mentioned in the XML. The function
allocated a new disk snapshot definition but did not correctly
initialize the snapshot disk source type variable. This resulted into
the disks considered as block devices and invalid XML was generated.
Reported by John Ferlan.
In 78839da I am trying to join the worker threads. However, I can't
sipmly reuse pool->nWorkers (same applies for pool->nPrioWorkers),
because of the following flow that is currently implemented:
1) the main thread executing virThreadPoolFree sets pool->quit = true,
wakes up all the workers and wait on pool->quit_cond.
2) A worker is woken up and see quit request. It immediately jumps of
the while() loop and decrements pool->nWorkers (or pool->nPrioWorkers in
case of priority worker). The last thread signalizes pool->quit_cond.
3) Main thread is woken up, with both pool->nWorkers and
pool->nPrioWorkers being zero.
So there's a need to copy the original value of worker thread counts
into local variables. However, these need to set *after* the check for
pool being NULL (dereferencing a NULL is no no). And for safety they can
be set right after the pool is locked.
Reported-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
When an error occurred in qemuAgentIO, it will be saved in mon->lastError,
but it will not be freed at the end. Present since commit c160ce33;
and compare to commit 9cc8a5af fixing the same problem in qemu_monitor.c.
==22219== 54 bytes in 1 blocks are definitely lost in loss record 982 of 1,379
==22219== at 0x4C26B9B: malloc (vg_replace_malloc.c:263)
==22219== by 0x8520521: strdup (in /lib64/libc-2.11.3.so)
==22219== by 0x52E99CB: virStrdup (virstring.c:554)
==22219== by 0x52B44C4: virCopyError (virerror.c:195)
==22219== by 0x52B5123: virCopyLastError (virerror.c:312)
==22219== by 0x10905877: qemuAgentIO (qemu_agent.c:660)
==22219== by 0x52B6122: virEventPollDispatchHandles (vireventpoll.c:501)
==22219== by 0x52B7AEA: virEventPollRunOnce (vireventpoll.c:647)
==22219== by 0x52B5C1B: virEventRunDefaultImpl (virevent.c:274)
==22219== by 0x54181FD: virNetServerRun (virnetserver.c:1112)
==22219== by 0x11EF4D: main (libvirtd.c:1513)
Signed-off-by: Zhou Yimin <zhouyimin@huawei.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
This patch fixes memory leaks reported by valgrind on running
qemuxml2argvtest; introduced in commit 0df53f04.
Most of them are of the form:
==24777== 15 bytes in 1 blocks are definitely lost in loss record 39 of 129
==24777== at 0x4A0887C: malloc (vg_replace_malloc.c:270)
==24777== by 0x341F485E21: strdup (strdup.c:42)
==24777== by 0x4CADE5F: virStrdup (virstring.c:554)
==24777== by 0x4362B6: qemuBuildDriveStr (qemu_command.c:3848)
==24777== by 0x43EF73: qemuBuildCommandLine (qemu_command.c:8500)
==24777== by 0x426670: testCompareXMLToArgvHelper (qemuxml2argvtest.c:350)
==24777== by 0x427C01: virtTestRun (testutils.c:138)
==24777== by 0x41DDB5: mymain (qemuxml2argvtest.c:658)
==24777== by 0x4282A2: virtTestMain (testutils.c:593)
==24777== by 0x341F421A04: (below main) (libc-start.c:225)
==24777==
Signed-off-by: Eric Blake <eblake@redhat.com>
Kill the use of atoi() and introduce syntax check to forbid it and it's
friends (atol, atoll, atof, atoq).
Also fix a typo in variable name holding the cylinders count of a disk
pool (apparently unused).
examples/domsuspend/suspend.c will need a larger scale refactor as the
whole example file is broken thus it will be exempted from the syntax
check for now.
Even though currently we are freeing the pool of worker threads at the
daemon very end, nothing holds us back in joining the worker threads.
Moreover, we avoid leaks like this:
==26697== 1,680 bytes in 5 blocks are possibly lost in loss record 913 of 942
==26697== at 0x4C2BDE4: calloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==26697== by 0x4011131: allocate_dtv (in /lib64/ld-2.16.so)
==26697== by 0x401176D: _dl_allocate_tls (in /lib64/ld-2.16.so)
==26697== by 0x8499602: pthread_create@@GLIBC_2.2.5 (in /lib64/libpthread-2.16.so)
==26697== by 0x52F53E9: virThreadCreate (virthreadpthread.c:188)
==26697== by 0x52F5D4F: virThreadPoolNew (virthreadpool.c:221)
==26697== by 0x53F30DB: virNetServerNew (virnetserver.c:377)
==26697== by 0x11C6ED: main (libvirtd.c:1366)
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Ever since the subcpusets(vcpu,emulator) were introduced, the parent
cpuset cannot be modified to remove the nodes that are in use by the
subcpusets.
The fix is to break the memory node modification into three steps:
1. assign new nodes into the parent,
2. change the nodes in the child nodes,
3. remove the old nodes on the parent node.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1009880
Signed-off-by: Shivaprasad G Bhat <sbhat@linux.vnet.ibm.com>
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
The storageRegister() didn't check the return from the
virRegisterStorageDriver() like other callers did, so Coverity
flagged it. Just check the return and handle.
The x509dname is only set inside a WITH_GNUTLS conditional, so
when used/check later on for NULL, Coverity detects this is not
possible. Added WITH_GNUTLS around uses to remove message
The nwfilterStateInitialize() would only assign sysbus inside
a WITH_DBUS conditional, thus leaving a subsequent check for sysbus
and nwfilterDriverInstallDBusMatches() as a no-op
Rather than try to add WITH_DBUS conditions which ended up conflicting
with the usage of HAVE_FIREWALLD conditionals, just remove the WITH_DBUS
since virdbus.c has entry points for with and without conditions.
The make inserts six spaces instead of four:
GEN access/viraccessapichecklxc.h
GEN hyperv/hyperv_wmi.generated.h
GEN access/viraccessapichecklxc.c
GEN hyperv/hyperv_wmi.generated.c
GEN hyperv/hyperv_wmi_classes.generated.typedef
GEN hyperv/hyperv_wmi_classes.generated.h
GEN hyperv/hyperv_wmi_classes.generated.c
GEN libvirt_access_qemu.xml
GEN libvirt_access.syms
GEN libvirt_access_lxc.xml
GEN libvirt_access_qemu.syms
GEN libvirt_access_lxc.syms
GEN libvirt_qemu.def
GEN esx/esx_vi_types.generated.typedef
GEN esx/esx_vi_types.generated.typeenum
GEN esx/esx_vi_types.generated.typetostring
GEN esx/esx_vi_types.generated.typefromstring
GEN esx/esx_vi_types.generated.h
GEN esx/esx_vi_types.generated.c
GEN esx/esx_vi_methods.generated.h
GEN esx/esx_vi_methods.generated.c
GEN esx/esx_vi_methods.generated.macro
GEN esx/esx_vi.generated.h
GEN esx/esx_vi.generated.c
GEN libvirt_lxc.def
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
This resolves:
https://bugzilla.redhat.com/show_bug.cgi?id=1029732
The BZ asked for the capability to change the number of queues used by
a virtio-net device while the device is in use. Because the number of
queues can only be set at the time the device is created, that isn't
possible. However, libvirt also shouldn't be silently reporting
success when someone tries to change the number of queues. So this
patch flags that as an error (just as attempts to change any of the
other virtio-specific parameters already do).
This resolves:
https://bugzilla.redhat.com/show_bug.cgi?id=888635
(which was already closed as CANTFIX because the qemu "-boot strict"
commandline option wasn't available at the time).
Problem: you couldn't have a domain that used PXE to boot, but also
had an un-bootable disk device *even if that disk wasn't listed in the
boot order*, because if PXE timed out (e.g. due to the bridge
forwarding delay), the BIOS would move on to the next target, which
would be the unbootable disk device (again - even though it wasn't
given a boot order), and get stuck at a "BOOT DISK FAILURE, PRESS ANY
KEY" message until a user intervened.
The solution available since sometime around QEMU 1.5, is to add
"-boot strict=on" to *every* qemu command. When this is done, if any
devices have a boot order specified, then QEMU will *only* attempt to
boot from those devices that have an explicit boot order, ignoring the
rest.
This patch resolves:
https://bugzilla.redhat.com/show_bug.cgi?id=1035188
Commit f094aaac48 changed the PCI device assignment in qemu domains
to default to using VFIO rather than legacy KVM device assignment
(when VFIO is available). It didn't change which driver was used by
default for virNodeDeviceDetachFlags(), though, so that API (and the
virsh nodedev-detach command) was still binding to the pci-stub
driver, used by legacy KVM assignment, by default.
This patch publicizes (only within the qemu module, though, so no
additions to the symbol exports are needed) the functions that check
for presence of KVM and VFIO device assignment, then uses those
functions to decide what to do when no driver is specified for
virNodeDeviceDetachFlags(); if the vfio driver is loaded, the device
will be bound to vfio-pci, or if legacy KVM assignment is supported on
this system, the device will be bound to pci-stub; if neither method
is available, the detach will fail.
Currently the snapshot code did not check if it actually supports
snapshots on various disk backends for domains. To avoid future problems
add checkers that whitelist the supported configurations.
This patch adds function qemuGetDriveSourceString to produce
qemu-compatible disk source strings that will enable to reuse the code
and refactors building of the qemu commandline of disks to use this new
helper.
Automatically assign secret type from the disk source definition and
pull in adding of the comma. Then update callers to keep generated
output the same.
Before this patch, the translation function still needs a second ugly
helper function to actually format the command line for qemu. But if we
do the right stuff in the translation function, we don't have to bother
with the second function any more.
This patch removes the messy qemuBuildVolumeString function and changes
qemuTranslateDiskSourcePool to set stuff up correctly so that the
regular code paths meant for volumes can be used to format the command
line correctly.
For this purpose a new helper "qemuDiskGetActualType()" is introduced to
return the type of the volume in a pool.
As a part of the refactor the qemuTranslateDiskSourcePool function is
fixed to do decisions based on the pool type instead of the volume type.
This allows to separate pool-type-specific stuff more clearly and will
ease addition of other pool types that will require certain other
operations to get the correct pool source.
The previously fixed tests should make sure that we don't break stuff
that was working before.
Though trying to destroy a physical HBA doesn't make sense at all,
it's still a bit misleading with saying "only works for HBA".
Signed-off-by: Osier Yang <jyang@redhat.com>
The virDomainGetBlockJobInfo method did not zero out the
virDomainBlockJobInfo pointer arg, so when block jobs were
not active it would return garbage for the bandwidth/cur/end
fields.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
When doing an internal snapshot on a VM with sheepdog or RBD disks we
would not set a flag to mark the domain is using internal snapshots and
might end up creating a mixed snapshot. Move the setting of the variable
to avoid this problem.
Consider the following valid snapshot XML as the <driver> element is
allowed to be empty in the domainsnapshot.rng schema:
$ cat snap.xml
<domainsnapshot>
<disks>
<disk name='vda' snapshot='external'>
<source file='/tmp/foo'/>
<driver/>
</disk>
</disks>
</domainsnapshot>
produces the following error:
$ virsh snapshot-create domain snap.xml
error: internal error: unknown disk snapshot driver '(null)'
The driver type is parsed as NULL from the XML as the attribute is not
present and then directly used to produce the error message.
With this patch the attempt to parse the driver type is skipped if not
present to avoid changing the schema to forbid the empty driver element.
Disk source elements for snapshots were using separate code from our
config parser. As snapshots can be stored on more than just regular
files, we will need the universal parser to allow us to expose a variety
of snapshot disk targets. This patch reuses the config parsers and
formatters to do the job.
This initial support only changes the code without any visible XML
change.
Avoid if statements when used with virBufferEscapeString which
automaticaly omits the whole string. Also add some line breaks to
visualy separate the code.
The <source> element formatting function was expecting a
virDomainDiskDefPtr to store the data. As snapshots are not using this
data structure to hold the data, we need to add an internal function
which splits out individual fields separately.
The original code ignored errors of virDomainHostdevDefAlloc,
however, we should properly do error return from the function
if it occurs.
The fix pulls out virDomainHostdevDefAlloc from the loop and
executes it all together before the loop. So we can easily
return on errors without the notion of other memory allocations
in the loop.
The deallocation code is separated from the allocation code
because it will be used by a further patch for fixing other error
handlings.
Reported-by: Laine Stump <laine@laine.org>
Signed-off-by: Ryota Ozaki <ozaki.ryota@gmail.com>
The fixed loop used logical OR to combine two conditions, however,
it is apparently incorrect and logical AND is correct.
We can fix it by replacing OR with AND, but this patch instead
fixes the problem by getting rid of the first conditional
statement: USBFilterCount < def->nhostdevs. It isn't needed
because USBFilterCount will never be greater than or equal to
def->nhostdevs.
def->nhostdevs is calculated in the following code
above the loop in question like this:
for (i = 0; i < deviceFilters.count; i++) {
PRBool active = PR_FALSE;
IUSBDeviceFilter *deviceFilter = deviceFilters.items[i];
deviceFilter->vtbl->GetActive(deviceFilter, &active);
if (active) {
def->nhostdevs++;
}
}
And the loop is constructed as like this:
for (i = 0; (USBFilterCount < def->nhostdevs) || (i < deviceFilters.count); i++) {
PRBool active = PR_FALSE;
(snip)
deviceFilter->vtbl->GetActive(deviceFilter, &active);
if (!active)
continue;
(snip)
USBFilterCount++;
}
So def->nhostdevs is the number of active device filters and
USBFilterCount is counted up only when a device filter is active.
Thus, we can remove USBFilterCount < def->nhostdevs safely.
Reported-by: Laine Stump <laine@laine.org>
Signed-off-by: Ryota Ozaki <ozaki.ryota@gmail.com>
While running nwfilterxml2xmltest, it was found that valgrind pointed out the
following error...
==7466== 16 bytes in 1 blocks are definitely lost in loss record 26 of 90
==7466== at 0x4A06B6F: calloc (vg_replace_malloc.c:593)
==7466== by 0x4C651AD: virAlloc (viralloc.c:142)
==7466== by 0x4D0450D: virNWFilterDefParseNode (nwfilter_conf.c:2575)
==7466== by 0x4D05D84: virNWFilterDefParse (nwfilter_conf.c:2647)
==7466== by 0x401FDE: testCompareXMLToXMLHelper (nwfilterxml2xmltest.c:39)
==7466== by 0x402DE1: virtTestRun (testutils.c:138)
==7466== by 0x4018E9: mymain (nwfilterxml2xmltest.c:111)
==7466== by 0x403482: virtTestMain (testutils.c:593)
==7466== by 0x341F421A04: (below main) (libc-start.c:225)
...21 times, which are related to 21 tests in nwfilterxml2xmltest.c which sent
EXPECT_WARN = false. There were two scenarios in virNWFilterDefParseXML(),
when the variable 'entry' was malloc'ed, but not freed.
This patch fixes the memory leaks found while running qemuxml2argvtest
==8260== 3 bytes in 1 blocks are definitely lost in loss record 1 of
129
==8260== at 0x4A0887C: malloc (vg_replace_malloc.c:270)
==8260== by 0x341F485E21: strdup (strdup.c:42)
==8260== by 0x4CADCFF: virStrdup (virstring.c:554)
==8260== by 0x4CBB839: virXPathString (virxml.c:90)
==8260== by 0x4CE753A: virDomainDefParseXML (domain_conf.c:11478)
==8260== by 0x4CEB4FE: virDomainDefParseNode (domain_conf.c:12742)
==8260== by 0x4CEB675: virDomainDefParse (domain_conf.c:12684)
==8260== by 0x425958: testCompareXMLToArgvHelper (qemuxml2argvtest.c:107)
==8260== by 0x427111: virtTestRun (testutils.c:138)
==8260== by 0x41D3FE: mymain (qemuxml2argvtest.c:452)
==8260== by 0x4277B2: virtTestMain (testutils.c:593)
==8260== by 0x341F421A04: (below main) (libc-start.c:225)
==8260==
==8260== 4 bytes in 1 blocks are definitely lost in loss record 5 of
129
==8260== at 0x4A0887C: malloc (vg_replace_malloc.c:270)
==8260== by 0x341F485E21: strdup (strdup.c:42)
==8260== by 0x4CADCFF: virStrdup (virstring.c:554)
==8260== by 0x4CBB839: virXPathString (virxml.c:90)
==8260== by 0x4CE753A: virDomainDefParseXML (domain_conf.c:11478)
==8260== by 0x4CEB4FE: virDomainDefParseNode (domain_conf.c:12742)
==8260== by 0x4CEB675: virDomainDefParse (domain_conf.c:12684)
==8260== by 0x425958: testCompareXMLToArgvHelper (qemuxml2argvtest.c:107)
==8260== by 0x427111: virtTestRun (testutils.c:138)
==8260== by 0x41D39A: mymain (qemuxml2argvtest.c:451)
==8260== by 0x4277B2: virtTestMain (testutils.c:593)
==8260== by 0x341F421A04: (below main) (libc-start.c:225)
==8260==
When setting up filesystems backed by block devices or file
images, the SELinux mount options must be used to ensure the
correct context is set
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This patch resolves:
https://bugzilla.redhat.com/show_bug.cgi?id=1035336
The basic problem is that during a network update, the required
iptables rules sometimes change, and this was being handled by simply
removing and re-adding the rules. However, the removal of the old
rules was done based on the *new* state of the network, which would
mean that some of the rules would not match those currently in the
system, so the old rules wouldn't be removed.
This patch removes the old rules prior to updating the network
definition then adds the new rules as soon as the definition is
updated. Note that this could lead to a stray packet or two during the
interim, but that was already a problem before (the period of limbo is
now just slightly longer).
While moving the location for the rules, I added a few more sections
that should result in the iptables rules being redone:
DHCP_RANGE and DHCP_HOST - these are needed because adding/removing a dhcp
host entry could lead to the dhcp service being started/stopped, which
would require that the mangle rule that fixes up dhcp response
checksums sould need to be added/removed, and this wasn't being done.
The code for extracting sub-mounts would just do a STRPREFIX
check on the mount. This was flawed because if there were
the following mounts
/etc/aliases
/etc/aliases.db
and '/etc/aliases' was asked for, it would return both even
though the latter isn't a sub-mount.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Move the code for lxcContainerGetSubtree into the virfile
module creating 2 new functions
int virFileGetMountSubtree(const char *mtabpath,
const char *prefix,
char ***mountsret,
size_t *nmountsret);
int virFileGetMountReverseSubtree(const char *mtabpath,
const char *prefix,
char ***mountsret,
size_t *nmountsret);
Add a new virfiletest.c test case to validate the new code.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
When attempting to backport gluster pools to an older versoin
where there is no VIR_STRDUP, I got a crash from calling
strdup(,NULL). Rather than relying on the current else branch
safely doing nothing when there is no fd, it is easier to just
skip it. While at it, there's no need to explicitly set
perms.label to NULL after a VIR_FREE().
* src/storage/storage_backend.c
(virStorageBackendUpdateVolTargetInfoFD): Minor optimization.
Signed-off-by: Eric Blake <eblake@redhat.com>
The virsh command 'domxml-to-native' (virConnectDomainXMLToNative())
converts all network devices to "type='ethernet'" in order to make it
more likely that the generated command could be run directly from a
shell (other libvirt network device types end up referencing file
descriptors for tap devices assumed to have been created by libvirt,
which can't be done in this case).
During this conversion, all of the netdev parameters are cleared out,
then specific items are filled in after changing the type. The MAC
address was not one of these preserved items, and the result was that
mac addresses in the generated commandlines were always
00:00:00:00:00:00.
This patch saves the mac address before the conversion, then
repopulates it afterwards, so the proper mac addresses show up in the
commandline.
Signed-off-by: Bing Bu Cao <mars@linux.vnet.ibm.com>
Signed-off-by: Laine Stump <laine@laine.org>
Commit 348b4e2 introduced a potential problem (thankfully not
in any release): we are attempting to use virFileReadHeaderFD()
on a file that was opened with O_NONBLOCK. While this
shouldn't be a problem in practice (because O_NONBLOCK
typically doesn't affect regular or block files, and fifos and
sockets cannot be storage volumes), it's better to play it safe
to avoid races from opening an unexpected file type while also
avoiding problems with having to handle EAGAIN while read()ing.
Based on a report by Dan Berrange.
* src/storage/storage_backend.c
(virStorageBackendVolOpenCheckMode): Fix up fd after avoiding race.
Signed-off-by: Eric Blake <eblake@redhat.com>
Also after commit 5ff9d8a65ce80efb509ce4e8051394e9ed2cd942
vfs: Lock in place mounts from more privileged users,
unprivileged user has no rights to umount the mounts that
inherited from parent mountns.
right now, I have no good idea to fix this problem, we need
to do more research. this patch just skip unmounting these
mounts for shared root.
BTW, I think when libvirt lxc enables user namespace, the
configuation that shares root with host is very rara.
Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
After kernel commit 5ff9d8a65ce80efb509ce4e8051394e9ed2cd942
vfs: Lock in place mounts from more privileged users,
unprivileged user has no rights to move the mounts that
inherited from parent mountns. we use this feature to move
the /stateDir/domain-name.{dev, devpts} to the /dev/ and
/dev/pts directroy of container. this commit breaks libvirt lxc.
this patch changes the behavior to bind these mounts when
user namespace is enabled and move these mounts when user
namespace is disabled.
Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
With some authentication mechanism (PLAIN for example), sasl_client_start()
can return SASL_OK, which translates to virNetSASLSessionClientStart()
returning VIR_NET_SASL_COMPLETE.
cyrus-sasl documentation is a bit vague as to what to do in such situation,
but upstream clarified this a bit in
http://asg.andrew.cmu.edu/archive/message.php?mailbox=archive.cyrus-sasl&msg=10104
When we got VIR_NET_SASL_COMPLETE after virNetSASLSessionClientStart() and
if the remote also tells us that authentication is complete, then we should
end the authentication procedure rather than forcing a call to
virNetSASLSessionClientStep(). Without this patch, when trying to use SASL
PLAIN, I get:
error :authentication failed : Failed to step SASL negotiation: -1
(SASL(-1): generic failure: Unable to find a callback: 32775)
This patch is based on a spice-gtk patch by Dietmar Maurer.
virNetSASLSessionClientStep logs the data that is going to be passed to
sasl_client_step as input data. However, it tries to log it as a string,
while there is no guarantee that this data is going to be nul-terminated.
This leads to this valgrind log:
==20938== Invalid read of size 1
==20938== at 0x8BDB08F: vfprintf (vfprintf.c:1635)
==20938== by 0x8C06DF2: vasprintf (vasprintf.c:62)
==20938== by 0x4CCEDF9: virVasprintfInternal (virstring.c:337)
==20938== by 0x4CA9516: virLogVMessage (virlog.c:842)
==20938== by 0x4CA939A: virLogMessage (virlog.c:778)
==20938== by 0x4E21E0D: virNetSASLSessionClientStep (virnetsaslcontext.c:458)
==20938== by 0x4DE47B8: remoteAuthSASL (remote_driver.c:4136)
==20938== by 0x4DE33AE: remoteAuthenticate (remote_driver.c:3635)
==20938== by 0x4DDBFAA: doRemoteOpen (remote_driver.c:832)
==20938== by 0x4DDC8BA: remoteConnectOpen (remote_driver.c:1027)
==20938== by 0x4D8595F: do_open (libvirt.c:1239)
==20938== by 0x4D863F3: virConnectOpenAuth (libvirt.c:1481)
==20938== by 0x12762B: vshReconnect (virsh.c:337)
==20938== by 0x12C9B0: vshInit (virsh.c:2470)
==20938== by 0x12E9A5: main (virsh.c:3338)
==20938== Address 0xe329ccd is 0 bytes after a block of size 141 alloc'd
==20938== at 0x4A081D4: calloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==20938== by 0x8CB91B4: xdr_array (xdr_array.c:94)
==20938== by 0x4E039C2: xdr_remote_auth_sasl_start_ret (remote_protocol.c:3134)
==20938== by 0x4E1F8AA: virNetMessageDecodePayload (virnetmessage.c:405)
==20938== by 0x4E119F5: virNetClientProgramCall (virnetclientprogram.c:377)
==20938== by 0x4DF8141: callFull (remote_driver.c:5794)
==20938== by 0x4DF821A: call (remote_driver.c:5816)
==20938== by 0x4DE46CF: remoteAuthSASL (remote_driver.c:4112)
==20938== by 0x4DE33AE: remoteAuthenticate (remote_driver.c:3635)
==20938== by 0x4DDBFAA: doRemoteOpen (remote_driver.c:832)
==20938== by 0x4DDC8BA: remoteConnectOpen (remote_driver.c:1027)
==20938== by 0x4D8595F: do_open (libvirt.c:1239)
==20938== by 0x4D863F3: virConnectOpenAuth (libvirt.c:1481)
==20938== by 0x12762B: vshReconnect (virsh.c:337)
==20938== by 0x12C9B0: vshInit (virsh.c:2470)
==20938== by 0x12E9A5: main (virsh.c:3338)
The array of sasl_callback_t callbacks which is passed to sasl_client_new()
must be kept alive as long as the created sasl_conn_t object is alive as
cyrus-sasl uses this structure internally for things like logging, so
the memory used for callbacks must only be freed after sasl_dispose() has
been called.
During testing of successful SASL logins with
virsh -c qemu+tls:///system list --all
I've been getting invalid read reports from valgrind
==9237== Invalid read of size 8
==9237== at 0x6E93B6F: _sasl_getcallback (common.c:1745)
==9237== by 0x6E95430: _sasl_log (common.c:1850)
==9237== by 0x16593D87: digestmd5_client_mech_dispose (digestmd5.c:4580)
==9237== by 0x6E91653: client_dispose (client.c:332)
==9237== by 0x6E9476A: sasl_dispose (common.c:851)
==9237== by 0x4E225A1: virNetSASLSessionDispose (virnetsaslcontext.c:678)
==9237== by 0x4CBC551: virObjectUnref (virobject.c:262)
==9237== by 0x4E254D1: virNetSocketDispose (virnetsocket.c:1042)
==9237== by 0x4CBC551: virObjectUnref (virobject.c:262)
==9237== by 0x4E2701C: virNetSocketEventFree (virnetsocket.c:1794)
==9237== by 0x4C965D3: virEventPollCleanupHandles (vireventpoll.c:583)
==9237== by 0x4C96987: virEventPollRunOnce (vireventpoll.c:652)
==9237== by 0x4C94730: virEventRunDefaultImpl (virevent.c:274)
==9237== by 0x12C7BA: vshEventLoop (virsh.c:2407)
==9237== by 0x4CD3D04: virThreadHelper (virthreadpthread.c:161)
==9237== by 0x7DAEF32: start_thread (pthread_create.c:309)
==9237== by 0x8C86EAC: clone (clone.S:111)
==9237== Address 0xe2d61b0 is 0 bytes inside a block of size 168 free'd
==9237== at 0x4A07577: free (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==9237== by 0x4C73827: virFree (viralloc.c:580)
==9237== by 0x4DE4BC7: remoteAuthSASL (remote_driver.c:4219)
==9237== by 0x4DE33D0: remoteAuthenticate (remote_driver.c:3639)
==9237== by 0x4DDBFAA: doRemoteOpen (remote_driver.c:832)
==9237== by 0x4DDC8DC: remoteConnectOpen (remote_driver.c:1031)
==9237== by 0x4D8595F: do_open (libvirt.c:1239)
==9237== by 0x4D863F3: virConnectOpenAuth (libvirt.c:1481)
==9237== by 0x12762B: vshReconnect (virsh.c:337)
==9237== by 0x12C9B0: vshInit (virsh.c:2470)
==9237== by 0x12E9A5: main (virsh.c:3338)
This commit changes virNetSASLSessionNewClient() to take ownership of the SASL
callbacks. Then we can free them in virNetSASLSessionDispose() after the corresponding
sasl_conn_t has been freed.
When testing SASL authentication over TLS with
virsh -c qemu+tls:///system list --all
I got this valgrind trace after entering wrong credentials:
==30540== 26,903 (88 direct, 26,815 indirect) bytes in 1 blocks are definitely lost in loss record 289 of 293
==30540== at 0x4A081D4: calloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==30540== by 0x4C7379A: virAllocVar (viralloc.c:558)
==30540== by 0x4CBC178: virObjectNew (virobject.c:190)
==30540== by 0x4CBC329: virObjectLockableNew (virobject.c:216)
==30540== by 0x4E2D003: virNetTLSContextNew (virnettlscontext.c:719)
==30540== by 0x4E2DC3F: virNetTLSContextNewPath (virnettlscontext.c:930)
==30540== by 0x4E2DD5B: virNetTLSContextNewClientPath (virnettlscontext.c:957)
==30540== by 0x4DDB618: doRemoteOpen (remote_driver.c:627)
==30540== by 0x4DDC8BA: remoteConnectOpen (remote_driver.c:1031)
==30540== by 0x4D8595F: do_open (libvirt.c:1239)
==30540== by 0x4D863F3: virConnectOpenAuth (libvirt.c:1481)
==30540== by 0x12762B: vshReconnect (virsh.c:337)
==30540== by 0x12C9B0: vshInit (virsh.c:2470)
==30540== by 0x12E9A5: main (virsh.c:3338)
You'd think I'd learn to actually COMMIT my working tree
between testing that a last-minute fix compiles and pushing.
* src/storage/storage_backend_gluster.c
(virStorageBackendGlusterRefreshVol): Typo fix.
Signed-off-by: Eric Blake <eblake@redhat.com>
Putting together pieces from previous patches, it is now possible
for 'virsh vol-dumpxml --pool gluster volname' to report metadata
about a qcow2 file stored on gluster. The backing file is still
treated as raw; to fix that, more patches are needed to make the
storage backing chain analysis recursive rather than halting at
a network protocol name, but that work will not need any further
calls into libgfapi so much as just reusing this code, and that
should be the only code outside of the storage driver that needs
any help from libgfapi. Any additional use of libgfapi within
libvirt should only be needed for implementing storage pool APIs
such as volume creation or resizing, where backing chain analysis
should be unaffected.
* src/storage/storage_backend_gluster.c
(virStorageBackendGlusterReadHeader): New helper function.
(virStorageBackendGlusterRefreshVol): Probe non-raw files.
Signed-off-by: Eric Blake <eblake@redhat.com>
With this patch, dangling and looping symlinks are silently
ignored, while links to files and directories are treated the
same as the underlying file or directory. This is the same
behavior as both 'directory' and 'netfs' pools.
* src/storage/storage_backend_gluster.c
(virStorageBackendGlusterRefreshVol): Treat symlinks similar to
directory and netfs pools.
Signed-off-by: Eric Blake <eblake@redhat.com>
We already had code for handling allocation different than
capacity for sparse files; we just had to wire it up to be
used when inspecting gluster images.
* src/storage/storage_backend.c
(virStorageBackendUpdateVolTargetInfoFD): Handle no fd.
* src/storage/storage_backend_gluster.c
(virStorageBackendGlusterRefreshVol): Handle sparse files.
Signed-off-by: Eric Blake <eblake@redhat.com>
Take advantage of the previous patch's addition of 'netdir' as
a distinct volume type, to expose rather than silently skip
directories embedded in a gluster pool. Also serves as an XML
validation for the previous patch.
* src/storage/storage_backend_gluster.c
(virStorageBackendGlusterRefreshVol): Don't skip directories.
* tests/storagevolxml2xmltest.c (mymain): Add test.
* tests/storagevolxml2xmlin/vol-gluster-dir.xml: New file.
* tests/storagevolxml2xmlout/vol-gluster-dir.xml: Likewise.
Signed-off-by: Eric Blake <eblake@redhat.com>
In the 'directory' and 'netfs' storage pools, a user can see
both 'file' and 'dir' storage volume types, to know when they
can descend into a subdirectory. But in a network-based storage
pool, such as the upcoming 'gluster' pool, we use 'network'
instead of 'file', and did not have any counterpart for a
directory until this patch. Adding a new volume type
'network-dir' is better than reusing 'dir', because it makes
it clear that the only way to access 'network' volumes within
that container is through the network mounting (leaving 'dir'
for something accessible in the local file system).
* include/libvirt/libvirt.h.in (virStorageVolType): Expand enum.
* docs/formatstorage.html.in: Document it.
* docs/schemasa/storagevol.rng (vol): Allow new value.
* src/conf/storage_conf.c (virStorageVol): Use new value.
* src/qemu/qemu_command.c (qemuBuildVolumeString): Fix client.
* src/qemu/qemu_conf.c (qemuTranslateDiskSourcePool): Likewise.
* tools/virsh-volume.c (vshVolumeTypeToString): Likewise.
* src/storage/storage_backend_fs.c
(virStorageBackendFileSystemVolDelete): Likewise.
Signed-off-by: Eric Blake <eblake@redhat.com>
Actually put gfapi to use, by allowing the creation of a gluster
pool. Right now, all volumes are treated as raw and directories
are skipped; further patches will allow peering into files to
allow for qcow2 files and backing chains, and reporting proper
volume allocation. This implementation was tested against Fedora
19's glusterfs 3.4.1; it might be made simpler by requiring a
higher minimum, and/or require more hacks to work with a lower
minimum.
* src/storage/storage_backend_gluster.c
(virStorageBackendGlusterRefreshPool): Initial implementation.
(virStorageBackendGlusterOpen, virStorageBackendGlusterClose)
(virStorageBackendGlusterRefreshVol): New helper functions.
Signed-off-by: Eric Blake <eblake@redhat.com>
We support gluster volumes in domain XML, so we also ought to
support them as a storage pool. Besides, a future patch will
want to take advantage of libgfapi to handle the case of a
gluster device holding qcow2 rather than raw storage, and for
that to work, we need a storage backend that can read gluster
storage volume contents. This sets up the framework.
Note that the new pool is named 'gluster' to match a
<disk type='network'><source protocol='gluster'> image source
already supported in a <domain>; it does NOT match the
<pool type='netfs'><source><target type='glusterfs'>,
since that uses a FUSE mount to a local file name rather than
a network name.
This and subsequent patches have been tested against glusterfs
3.4.1 (available on Fedora 19); there are likely bugs in older
versions that may prevent decent use of gfapi, so this patch
enforces the minimum version tested. A future patch may lower
the minimum. On the other hand, I hit at least two bugs in
3.4.1 that will be fixed in 3.5/3.4.2, where it might be worth
raising the minimum: glfs_readdir is nicer to use than
glfs_readdir_r [1], and glfs_fini should only return failure on
an actual failure [2].
[1] http://lists.gnu.org/archive/html/gluster-devel/2013-10/msg00085.html
[2] http://lists.gnu.org/archive/html/gluster-devel/2013-10/msg00086.html
* configure.ac (WITH_STORAGE_GLUSTER): New conditional.
* m4/virt-gluster.m4: new file.
* libvirt.spec.in (BuildRequires): Support gluster in spec file.
* src/conf/storage_conf.h (VIR_STORAGE_POOL_GLUSTER): New pool
type.
* src/conf/storage_conf.c (poolTypeInfo): Treat similar to
sheepdog and rbd.
(virStoragePoolDefFormat): Don't output target for gluster.
* src/storage/storage_backend_gluster.h: New file.
* src/storage/storage_backend_gluster.c: Likewise.
* po/POTFILES.in: Add new file.
* src/storage/storage_backend.c (backends): Register new type.
* src/Makefile.am (STORAGE_DRIVER_GLUSTER_SOURCES): Build new files.
* src/storage/storage_backend.h (_virStorageBackend): Documet
assumption.
Signed-off-by: Eric Blake <eblake@redhat.com>
I got annoyed at having to use both 'virsh vol-list $pool --details'
AND 'virsh vol-dumpxml $vol $pool' to learn if I had populated
the volume correctly. Since two-thirds of the data present in
virStorageVolGetInfo() already appears in virStorageVolGetXMLDesc(),
this just adds the remaining piece of information, as:
<volume type='...'>
...
</volume>
* docs/formatstorage.html.in: Document new <volume type=...>.
* docs/schemas/storagevol.rng (vol): Add it to RelaxNG.
* src/conf/storage_conf.h (virStorageVolTypeToString): Declare.
* src/conf/storage_conf.c (virStorageVolTargetDefFormat): Output
the metatype.
(virStorageVolDefParseXML): Parse it, for unit tests.
* tests/storagevolxml2xmlout/vol-*.xml: Update tests to match.
Signed-off-by: Eric Blake <eblake@redhat.com>
The bus type IDE being enum Zero, the bus type on pseries system appears as IDE for all the -hda/-cdrom and for disk drives with if="none" type. Pseries platform needs this to appear as SCSI instead of IDE. The ide being not supported, the explicit requests for ide devices will return an error.
Signed-off-by: Shivaprasad G Bhat <sbhat@linux.vnet.ibm.com>
I didn't find any other instances with:
git grep '1\.1\.5'
* src/test/test_driver.c (testDriver): Tweak version info.
Signed-off-by: Eric Blake <eblake@redhat.com>
Makefile.am, vbox_V4_3.c and vbox_driver.c do regular
modifitions to support a new version of APIs.
vbox_tmpl.c basically fixes incompatibilities since 4.2.
The affected incompatibilities of 4.3 are:
* IMachine::Delete() has been renamed to IMachine::deleteConfig()
* IMedium::CreateBaseStorage() now accepts multiple variant values
* IDisplay::GetScreenResolution() now returns the display position
in the guest
* IMachine now has multiple IUSBControllers and IUSBDeviceFilters
handles USB device filters instead of (obsolete) IUSBController
This patch is tested on Mac OS X 10.8.5 and Fedora 19.
Signed-off-by: Ryota Ozaki <ozaki.ryota@gmail.com>
The USB-related code in vboxDomainGetXMLDesc is deeply nested and
difficult to add new code. So flatten it. To do so, the code is
pulled out from vboxDomainGetXMLDesc to make the function short
and to leaverage early return and goto for error handling.
Signed-off-by: Ryota Ozaki <ozaki.ryota@gmail.com>
This nested job is canceled by the first ExitMonitor call (even though
it was not created by the corresponding EnterMonitor call), and
again in qemuMigrationPrepareAny if qemuProcessStart failed.
This can lead to a crash if the vm object was disposed of before calling
qemuDomainRemoveInactive:
0 ..62bc in virClassIsDerivedFrom (klass=0xdeadbeef,
parent=0x7ffce4cdd270) at util/virobject.c:166
1 ..6666 in virObjectIsClass at util/virobject.c:362
2 ..66b4 in virObjectLock at util/virobject.c:314
3 ..477e in virDomainObjListRemove at conf/domain_conf.c:2359
4 ..7a64 in qemuDomainRemoveInactive at qemu/qemu_domain.c:2087
5 ..956c in qemuMigrationPrepareAny at qemu/qemu_migration.c:2469
This was added by commit e4e2822, exposed by 5a4c237 and c7ac251.
https://bugzilla.redhat.com/show_bug.cgi?id=1018267
https://bugzilla.redhat.com/show_bug.cgi?id=744967
If a domain is rebooting and a migrate API is called meanwhile we would
have to transfer the fakeReboot attribute to the destination in order to
prevent domain doing plain shutdown over there. We shouldn't try to do
anything clever about it other than documenting this as a known
limitation.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
$ touch /var/lib/libvirt/images/'a<b>c'
$ virsh pool-refresh default
$ virsh vol-dumpxml 'a<b>c' default | head -n2
<volume>
<name>a<b>c</name>
Oops. That's not valid XML. And when we fix the XML
generation, it fails RelaxNG validation.
I'm also tired of seeing <key>(null)</key> in the example
output for volume xml; while we used NULLSTR() to avoid
a NULL deref rather than relying on glibc's printf
extension behavior, it's even better if we avoid the issue
in the first place. But this requires being careful that
we don't invalidate any storage backends that were relying
on key being unassigned during virStoragVolCreateXML[From].
I would have split this into two patches (one for escaping,
one for avoiding <key>(null)</key>), but since they both
end up touching a lot of the same test files, I ended up
merging it into one.
Note that this patch allows pretty much any volume name
that can appear in a directory (excluding . and .. because
those are special), but does nothing to change the current
(unenforced) RelaxNG claim that pool names will consist
only of letters, numbers, _, -, and +. Tightening the C
code to match RelaxNG patterns and/or relaxing the grammar
to match the C code for pool names is a task for another
day (but remember, we DID recently tighten C code for
domain names to exclude a leading '.').
* src/conf/storage_conf.c (virStoragePoolSourceFormat)
(virStoragePoolDefFormat, virStorageVolTargetDefFormat)
(virStorageVolDefFormat): Escape user-controlled strings.
(virStorageVolDefParseXML): Parse key, for use in unit tests.
* src/storage/storage_driver.c (storageVolCreateXML)
(storageVolCreateXMLFrom): Ensure parsed key doesn't confuse
volume creation.
* docs/schemas/basictypes.rng (volName): Relax definition.
* tests/storagepoolxml2xmltest.c (mymain): Test it.
* tests/storagevolxml2xmltest.c (mymain): Likewise.
* tests/storagepoolxml2xmlin/pool-dir-naming.xml: New file.
* tests/storagepoolxml2xmlout/pool-dir-naming.xml: Likewise.
* tests/storagevolxml2xmlin/vol-file-naming.xml: Likewise.
* tests/storagevolxml2xmlout/vol-file-naming.xml: Likewise.
* tests/storagevolxml2xmlout/vol-*.xml: Fix fallout.
Signed-off-by: Eric Blake <eblake@redhat.com>
If a SCSI hostdev is included in an initial domain XML, without a
corresponding controller statement, one is created silently when the
guest is booted.
When hotplugging a SCSI hostdev, a presumption is that the controller
is already present in the domain either from the original XML, or via
an earlier hotplug.
[root@xxxxxxxx ~]# cat disk.xml
<hostdev mode='subsystem' type='scsi'>
<source>
<adapter name='scsi_host0'/>
<address bus='0' target='3' unit='1088438288'/>
</source>
</hostdev>
[root@xxxxxxxx ~]# virsh attach-device guest01 disk.xml
error: Failed to attach device from disk.xml
error: internal error: unable to execute QEMU command 'device_add': Bus 'scsi0.0' not found
Since the infrastructure is in place, we can also create a controller
silently for use by the hotplugged hostdev device.
Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com>
For systems without a PCI bus, attaching a SCSI controller fails:
[root@xxxxxxxx ~]# cat controller.xml
<controller type='scsi' model='virtio-scsi' index='0' />
[root@xxxxxxxx ~]# virsh attach-device guest01 controller.xml
error: Failed to attach device from controller.xml
error: XML error: No PCI buses available
A similar problem occurs with the detach of a controller:
[root@xxxxxxxx ~]# virsh detach-device guest01 controller.xml
error: Failed to detach device from controller.xml
error: operation failed: controller scsi:0 not found
The qemuDomainXXtachPciControllerDevice routines made assumptions
that any caller had a PCI bus. These routines now selectively calls
PCI functions where necessary, and assigns the device information
type to one appropriate for the bus in use.
Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
For attach/detach of controller devices, we rename the functions to
remove 'PCI' from their title. The actual separation of PCI-specific
operations will be handled in the next patch.
Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com>
It makes no sense to go forward to get the parent host number of a
HBA, and treat the HBA as a vHBA with trying to delete it.
Signed-off-by: Osier Yang <jyang@redhat.com>
These changes allow the correct virtio-blk-device and virtio-net-device
devices to be used for the 'virt' machine type for armv7 rather than the
PCI virtio devices.
A test case was added to qemuxml2argvtest for this change.
Signed-off-by: Clark Laughlin <clark.laughlin@linaro.org>
Most of our code base uses space after comma but not before;
fix the remaining uses before adding a syntax check.
* src/network/bridge_driver.c: Consistently use commas.
* src/node_device/node_device_hal.c: Likewise.
* src/node_device/node_device_udev.c: Likewise.
* src/storage/storage_backend_rbd.c: Likewise.
Signed-off-by: Eric Blake <eblake@redhat.com>
Most of our code base uses space after comma but not before;
fix the remaining uses before adding a syntax check.
* src/lxc/lxc_container.c: Consistently use commas.
* src/openvz/openvz_driver.c: Likewise.
* src/openvz/openvz_util.c: Likewise.
* src/remote/remote_driver.c: Likewise.
* src/test/test_driver.c: Likewise.
Signed-off-by: Eric Blake <eblake@redhat.com>
Most of our code base uses space after comma but not before;
fix the remaining uses before adding a syntax check.
* src/vbox/vbox_tmpl.c: Consistently use commas.
Signed-off-by: Eric Blake <eblake@redhat.com>
Most of our code base uses space after comma but not before;
fix the remaining uses before adding a syntax check.
* src/util/vircommand.c: Consistently use commas.
* src/util/virlog.c: Likewise.
* src/util/virnetdevbandwidth.c: Likewise.
* src/util/virnetdevmacvlan.c: Likewise.
* src/util/virnetdevvportprofile.c: Likewise.
* src/util/virnetlink.c: Likewise.
* src/util/virpci.c: Likewise.
* src/util/virsysinfo.c: Likewise.
* src/util/virusb.c: Likewise.
Signed-off-by: Eric Blake <eblake@redhat.com>
Most of our code base uses space after comma but not before;
fix the remaining uses before adding a syntax check.
* src/qemu/qemu_cgroup.c: Consistently use commas.
* src/qemu/qemu_command.c: Likewise.
* src/qemu/qemu_conf.c: Likewise.
* src/qemu/qemu_driver.c: Likewise.
* src/qemu/qemu_monitor.c: Likewise.
Signed-off-by: Eric Blake <eblake@redhat.com>
Most of our code base uses space after comma but not before;
fix the remaining uses before adding a syntax check.
* src/libxl/libxl_driver.c: Consistently use commas.
* src/xen/xend_internal.c: Likewise.
* src/xen/xs_internal.c: Likewise.
* src/xenapi/xenapi_driver.c: Likewise.
* src/xenapi/xenapi_utils.c: Likewise.
* src/xenxs/xen_sxpr.c: Likewise.
* src/xenxs/xen_xm.c: Likewise.
Signed-off-by: Eric Blake <eblake@redhat.com>
Most of our code base uses space after comma but not before;
fix the remaining uses before adding a syntax check.
* src/conf/capabilities.c: Consistently use commas.
* src/conf/domain_conf.c: Likewise.
* src/conf/network_conf.c: Likewise.
* src/conf/storage_conf.c: Likewise.
Signed-off-by: Eric Blake <eblake@redhat.com>
Most of our code base uses space after comma but not before;
fix the remaining uses before adding a syntax check.
* src/nwfilter/nwfilter_ebiptables_driver.c: Consistently use
commas.
* src/nwfilter/nwfilter_gentech_driver.c: Likewise.
* src/nwfilter/nwfilter_learnipaddr.c: Likewise.
* src/conf/nwfilter_conf.c: Likewise.
Signed-off-by: Eric Blake <eblake@redhat.com>
For a while we're have random failures of 'securityselinuxtest'
which were not at all reproducible. Fortunately we finally
caught a failure with VIR_TEST_DEBUG=1 enabled. This revealed
TEST: securityselinuxtest
1) GenLabel "dynamic unconfined, s0, c0.c1023" ... OK
2) GenLabel "dynamic unconfined, s0, c0.c1023" ... OK
3) GenLabel "dynamic unconfined, s0, c0.c1023" ... OK
4) GenLabel "dynamic virtd, s0, c0.c1023" ... OK
5) GenLabel "dynamic virtd, s0, c0.c10" ... OK
6) GenLabel "dynamic virtd, s2-s3, c0.c1023" ... OK
7) GenLabel "dynamic virtd, missing range" ... Category two 1024 is out of range 0-1023
FAILED
FAIL: securityselinuxtest
And sure enough we had an off-by-1 in the MCS range code when
the current process has no range set. The test suite randomly
allocates 2 categories from 0->1024 so the chances of hitting
this in the test suite were slim indeed :-)
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
All our .pl scripts had the executable bit set, except for one.
Make it consistent (even if we invoke the scripts as an argument
to $(PERL) rather than directly).
* src/check-aclrules.pl: Make executable.
Signed-off-by: Eric Blake <eblake@redhat.com>
On the domain startup, this function is called to dump some info about
the CPUs. At the beginning of the function we check if we aren't running
older qemu which is not exposing the CPUs via 'qom-list'. However, we
are not checking for even older qemus, which throw 'CommandNotFound'
error.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
A USB filter is stored in a hostdev. The original code doesn't
allocate hostdev->info that is expected to be allocated with hostdev.
So use virDomainHostdevDefAlloc() to allocate both as we expect.
Signed-off-by: Ryota Ozaki <ozaki.ryota@gmail.com>
Without a 'return 0' in the stub lxcStartFuse() method, the
compiler warns:
lxc/lxc_fuse.c:374: error: control reaches end of non-void function
[-Wreturn-type]
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The glibc setxid is supposed to be async signal safe, but
libc developers confirm that it is not. This causes a problem
when libvirt_lxc starts the FUSE thread and then runs clone()
to start the container. If the clone() was done before the
FUSE thread has completely started up, then the container
will hang in setxid after clone().
The fix is to avoid creating any threads until after the
container has been clone()'d. By avoiding any threads in
the parent, the child is no longer required to run in an
async signal safe context, and we thus avoid the glibc
bug.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Report the error in virPortAllocatorAcquire instead
of doing it in every caller.
The error contains the port range name instead of the intended
use for the port, e.g.:
Unable to find an unused port in range 'display' (65534-65535)
instead of:
Unable to find an unused port for SPICE
This also adds error reporting when the QEMU driver could not
find an unused port for VNC, VNC WebSockets or NBD migration.
The connection pointer in the closeCallback data was never
initialized, making the unref in remoteClientCloseFunc a no-op.
This fixes the following leak in virsh when the daemon closes
the connection unexpectedly:
1,179 (288 direct, 891 indirect) bytes in 1 blocks are
definitely lost in loss record 745 of 792
at 0x4C2A6D0: calloc (in vgpreload_memcheck-amd64-linux.so)
by 0x4E9643D: virAllocVar (viralloc.c:558)
by 0x4ED2425: virObjectNew (virobject.c:190)
by 0x4F675AC: virGetConnect (datatypes.c:116)
by 0x4F6EA06: do_open (libvirt.c:1136)
by 0x4F71017: virConnectOpenAuth (libvirt.c:1481)
by 0x129FFA: vshReconnect (virsh.c:337)
by 0x128310: main (virsh.c:2470)
