When querying for kvm, we try to find 'enabled' field. Hence the error
message should report we haven't found 'enabled' and not 'running'
(which is not even in the reply). Probably a typo or copy-paste error.
qemu_hotplug: Allow QoS update in qemuDomainChangeNet
The qemuDomainChangeNet() is called when 'virsh update-device' is
invoked on a NIC. Currently, we fail to update the QoS even though
we have routines for that.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
So far the virNetDevBandwidthEqual() expected both ->in and ->out items
to be allocated for both @a and @b compared. This is not necessary true
for all our code. For instance, running 'update-device' twice over a NIC
with the very same XML results in SIGSEGV-ing in this function.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
libvirt previously recognized NFS, GFS2, OCFS2, and AFS filesystems as
"shared", and thus eligible for exceptions to certain rules/actions
about chowning image files before handing them off to a guest. This
patch widens the definition of "shared filesystem" to include SMB and
CIFS filesystems (aka "Windows file sharing"); both of these use the
same protocol, but different drivers so there are different magic
numbers for each.
Michal Privoznik [Thu, 19 Sep 2013 11:44:41 +0000 (13:44 +0200)]
tests: Introduce qemucapabilitiestest
This test is there to ensure that our capabilities detection code isn't
broken somehow.
How to gather test data:
Firstly, the data is split into two separate files. The former (with
suffix .replies) contains all the qemu replies. This is very fragile as
introducing a new device can mean yet another monitor command and hence
edit of this file in the future. But there's no better way of doing
this. To get this data simply turn on debug logs and copy all the
QEMU_MONITOR_IO_PROCESS lines. But be careful to not copy incomplete
ones (yeah, we report some incomplete lines too). Long story short, at
the libvirtd startup, a dummy qemu is spawn to get all the capabilities.
The latter (with suffix .caps) contains capabilities XML. Just start a
domain and copy the corresponding part from its state XML file.
Including <qemuCaps> tag.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Michal Privoznik [Thu, 19 Sep 2013 13:19:08 +0000 (15:19 +0200)]
qemuMonitorTest: Make check for monitor command match optional
In a few cases we might want to not care if monitor command executed on
the mocked monitor matches the one we have reply for. Sounds crazy, but
if we just want monitor to return certain values (e.g. read from a file)
there is no need to care about command match.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Michal Privoznik [Thu, 19 Sep 2013 11:56:30 +0000 (13:56 +0200)]
tests: Learn qemuMonitorTestNew optional greeting
Currently, when creating a new mocked monitor, the greeting can't be
chosen. This is crucial for next patches, because some info as qemu
version is obtained in the greeting message.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
This basically covers the talking-to-monitor part of
virQEMUCapsInitQMP. The patch itself has no real value,
but it creates an entity to be tested in the next patches.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
The libvirtd server pushes data out to clients. It does not
know what protocol version the client might have, so must be
conservative and use the old payload limits. ie send no more
than 256kb of data per packet.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
LXC: workaround machined uncleaned data with containers running systemd.
The problem is described by [0] but its effect on libvirt is that
starting a container with a full distro running systemd after having
stopped it simply fails.
The container cleanup now calls the machined Terminate function to make
sure that everything is in order for the next run.
Boris Fiuczynski [Mon, 30 Sep 2013 12:23:17 +0000 (14:23 +0200)]
virscsi: hostdev SCSI AdapterId retrieval fix
Fixed the retrieval of the AdapterId from the AdapterName of the
hostdev source so it does return an error instead of leaving the
adapter_id uninitialized.
Signed-off-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com> Reviewed-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
Peter Krempa [Mon, 30 Sep 2013 09:47:47 +0000 (11:47 +0200)]
qemu: process: Silence coverity warning when rewinding log file
The change in ef29de14c37d14abc546e90555a0093797facfdd that introduced
better error logging from qemu introduced a warning from coverity about
unused return value from lseek. Silence this warning and fix typo in the
corresponding error message.
Michal Privoznik [Mon, 30 Sep 2013 09:23:08 +0000 (11:23 +0200)]
python: Document virNodeGetInfo bug
The memory size in virNodeGetInfo python API binding is reported in MiB
instead of KiB (like we have in C struct). However, there already might
be applications out there relying on this inconsistence so we can't
simply fix it. Document this sad fact as known bug.
Currently the VMware version check code only supports two types of
VMware backends, Workstation and Player. But in the near future we will
have an additional one so we need to support more. Additionally, we
discover and cache the path to the vmrun binary so we should use that
path when using the corresponding binary from the VMware VIX SDK.
Michal Privoznik [Fri, 27 Sep 2013 16:04:31 +0000 (18:04 +0200)]
Makefile.am: Always include rule to make org.libvirt.api.policy
When running 'make dist' on a system without policykit, we currently
fail. This is because $(srcdir)/access/org.libvirt.api.policy is in
EXTRA_DIST, however, the rule to generate the file is conditional
whether we build with polkit or not.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Michal Privoznik [Fri, 27 Sep 2013 14:47:12 +0000 (16:47 +0200)]
fchosttest: Run the test only under linux
Currently, we have functions to handle fc_host implemented just
for linux. On all other platforms an error is thrown. It makes no
sense to run the test on those platforms then.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Michal Privoznik [Fri, 27 Sep 2013 14:20:49 +0000 (16:20 +0200)]
genprotocol.pl: Fix code on FreeBSD too
On some systems (linux, cygwin and gnukfreebsd) rpcgen generates files
which when compiling produces this warning:
remote/remote_protocol.c: In function 'xdr_remote_node_get_cpu_stats_ret':
remote/remote_protocol.c:530: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
Hence, on those systems we need to post-process the files by the
rpc/genprotocol.pl perl script. At the beginning of the script the OS is
detected via $^O perl variable. From my latest build on FreeBSD I see we
need to fix the code there too. On FreeBSD the variable contains
'freebsd' string:
http://perldoc.perl.org/perlport.html#PLATFORMS
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
The debug message said there was a timeout of 0 pending for -1 ms which
made me think this is where a hang was coming from but according to the
function comments this case means that there is no timeout pending so
make the debug message say that instead of saying there's a -1 ms
timeout.
While BSDs don't support process creation timestamp information via
PEERCRED for Unix sockets, we need to actually initialize the value
because it is used by the libvirt code.
Fix crash in libvirtd when events are registered & ACLs active
When a client disconnects from libvirtd, all event callbacks
must be removed. This involves running the public API
virConnectDomainEventDeregisterAny
This code does not run in normal API dispatch context, so no
identity was set. The result was that the access control drivers
denied the attempt to deregister callbacks. The callbacks thus
continued to trigger after the client was free'd causing fairly
predictable use of free memory & a crash.
This can be triggered by any client with readonly access when
the ACL drivers are active.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
It's possible to create a domain which will only use a TLS port
and will not have a non-TLS port set by using:
<graphics type='spice' autoport='yes' defaultMode='secure'/>
In such a setup, the 'graphics' node for the running domain will be:
<graphics type='spice' tlsPort='5900'
autoport='yes' listen='127.0.0.1'
defaultMode='secure'>
However, cmdDomDisplay loops over all the 'graphics' node, and it
ignores nodes which don't have a 'port' attribute. This means
'virsh domdisplay' will only return an empty string for domains
as the one above.
This commit looks for both 'port' and 'tlsPort' before deciding
to ignore a graphics node. It also makes sure 'port' is not printed
when it's not set.
This makes 'virsh domdisplay' return
'spice://127.0.0.1?tls-port=5900' for domains using only a TLS
port.
However, the child only unreferenced hookData.cfg and the parent only
removed the cfg reference. That said, we don't need to increment the
reference counter when assigning cfg to hookData. Both the child and the
parent will correctly remove the reference on cfg (the child will do
that through hookData).
Commit 6d7d0b1869ed293e3208d11f375cecea0129dfc5 (in 1.1.2) added bounds
checking to virDomainGetJobStats. But even at that time the API was able
to return 20 parameters while the limit was set to 16.
Eric Blake [Thu, 26 Sep 2013 21:14:38 +0000 (15:14 -0600)]
build: fix use of rpc.h on cygwin
Caused by commit 012c25e8 splitting out a convenience library.
CC libvirtd_conf_la-libvirtd-config.lo
In file included from ../src/rpc/virnetmessage.h:24:0,
from ../src/rpc/virnetserverprogram.h:27,
from ../src/rpc/virnetserver.h:32,
from libvirtd-config.c:31:
../src/rpc/virnetprotocol.h:9:21: fatal error: rpc/rpc.h: No such file
or directory
qemu: virDomainControllerFind may return 0 if controller found
The return value of virDomainControllerFind >=0 means that
the specific controller was found.
But some functions invoke it and treat 0 as not found.
This patch fix these incorrect invocation.
Peter Krempa [Thu, 26 Sep 2013 06:12:39 +0000 (08:12 +0200)]
conf: Don't crash on invalid chardev source definition of RNGs and other
Since commit 297c99a5 an invalid source definition XML of a character
device that is used as backend for RNG devices, smartcards and redirdevs
causes crash of the daemon when parsing such a definition.
The device types mentioned above are not a part of a regular character
device but are backends for other types. Thus when parsing such device
NULL is passed as the argument @chr_def. Later when checking the
validity of the definition @chr_def was dereferenced when parsing a UNIX
socket backend with missing path of the socket and crashed the daemon.
spec: Clean up distribution of ChangeLog (and others)
- Move COPYING* to libvirt-client, so every package pulls them in
- Move AUTHORS ChangeLog.gz NEWS README TODO from -daemon to -docs
- Drop duplicate distribution of docs in -python
Avoid double free in qemuMonitorCommonTestInit on OOM
The qemuMonitorCommonTestInit method did not allocate the
test object, so it should not free it upon failure. Doing
so causes a double free with the caller.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
For inexplicable reasons, the nwfilter XML parser is intentionally
ignoring errors that arise during parsing. As well as meaning that
users don't get any feedback on their XML mistakes, this will lead
it to silently drop data in OOM conditions.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Normally a lockspace resource is not freed while there are
active owners. During initial resource creation though, an
OOM error will trigger this scenario. virLockSpaceResourceFree
was not freeing the 'owners' field in this case.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The virStoragePoolDefParseSource method would set def->nhosts
before allocating def->hosts. If the allocation failed due to
OOM, the cleanup code would crash accessing out of bounds.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The virDomainSnapshotDefParse method assigned to def->ndisks
before allocating def->disks. Thus if an OOM occurred, the
cleanup code would access out of bounds.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Don't clobber return value in virInterfaceDefParseProtoIPv6
Several places in virInterfaceDefParseProtoIPv6 clobber the
default 'ret' return value. So when jumping to cleanup on
error, 'ret' may mistakenly be set to 0 instead of -1. This
caused failure to report OOM errors, meaning data was silently
lost during parsing.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The methods for obtaining the Xen dom ID cannot distinguish
between returning -1 due to an error and returning -1 due to
the domain being shutoff. Change them to return the dom ID
via an output parameter.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The xenParseSxpr method sets def->nconsoles to 1 before allocating
the def->consoles array. If the allocation fails due to OOM the
cleanup code will thus crash accessing out of bounds.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The xenParseXM sets def->nconsoles to 1 before claling
VIR_REALLOC_N on def->consoles. So if the alloc fails
due to OOM, the cleanup code will crash accessing a
console that does not exist.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Fix leak of command line args in qemuParseCommandLine
If qemuParseCommandLine finds an arg it does not understand
it adds it to the QEMU passthrough custom arg list. If the
qemuParseCommandLine method hits an error for any reason
though, it just does 'VIR_FREE(cmd)' on the custom arg list.
This means all actual args / env vars are leaked. Introduce
a qemuDomainCmdlineDefFree method to be used for cleanup.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The 'qemuStringToArgvEnv' method splits up a string of command
line env/args to an 'arglist' array. It then copies env vars
to a 'progenv' array and args to a 'progargv' array. When
copyin the env vars, it NULL-ifies the element in 'arglist'
that is copied.
Upon OOM the 'virStringListFree' is called on progenv and
arglist. Unfortunately, because the elements in 'arglist'
related to env vars have been set to NULL, the call to
virStringListFree(arglist) doesn't free anything, even
though some non-NULL args vars still exist later in the
array.
To fix this leak, stop NULL-ifying the 'arglist' elements,
and change the cleanup code to only free elements in the
'arglist' array, not 'progenv'.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Fix missing jump to error cleanup in qemuParseCommandLineDisk
In a number of places in qemuParseCommandLineDisk, an error
is reported, but no 'goto error' jump is used. This causes
failure to report OOM conditions to the caller.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Fix leak on OOM in qemuBuildCommandLine dealing with sound card
The qemuBuildCommandLine code for parsing sound cards will leak
an intermediate variable if an OOM occurs. Move the free'ing of
the variable earlier to avoid the leak.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Fix failure to honour OOM status in qemuParseNBDString
In qemuParseNBDString, if the virURIParse fails, the
error is not reported to the caller. Instead execution
falls through to the non-URI codepath causing memory
leaks later on.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Fix leak of address string in qemuDomainPCIAddressGetNextSlot
qemuDomainPCIAddressGetNextSlot has a loop for finding
compatible PCI buses. In the loop body it creates a
PCI address string, but never frees this. This causes
a leak if the loop executes more than one iteration,
or if a call in the loop body fails.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
If virDomainVcpuPinDefArrayFree is called with def != NULL,
but nvcpupin == 0, then it leaks memory for 'def'. This is
an unusual scenario, but it hits when cleaning up after an
OOM during parsing of XML.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
00:1E.0 is the location of this controller on at least some actual Q35
hardware, so we try to replicate the placement. The bridge should work
just as well in any other location though, so if 00:1E.0 isn't
available, just allow it to be auto-assigned anywhere appropriate.
projects / libvirt.git / log