The qemuParseCommandLine method did not check the return value of
virStringSplit to see if OOM had occurred. This lead to dereference
of a NULL pointer on OOM.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

Most callers of qemuParseKeywords were assigning its return
value to a 'size_t' variable. Then then also checked '< 0'
for error condition, but this will never be true with the
unsigned size_t variable. Rather than using 'ssize_t', change
qemuParseKeywords so that the element count is returned via
an output parameter, leaving the return value solely as an
error indicator.

This avoids a crash accessing beyond the end of an error
upon OOM.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

In

  commit 41b55056
  Author: Eric Blake <eblake@redhat.com>
  Date:   Wed Aug 28 15:01:23 2013 -0600

    qemu: simplify list cleanup

The qemuStringToArgvEnv method was changed to use virStringFreeList
to free the 'arglist' array. This method assumes the string list
array is NULL terminated, however, qemuStringToArgvEnv was not
ensuring this when populating 'arglist'. This caused an out of
bounds access by virStringFreeList when OOM occured in the initial
loop of qemuStringToArgvEnv
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

When parsing the RBD hosts, it increments the 'nhosts' counter
before increasing the 'hosts' array allocation. If an OOM then
occurs when increasing the array allocation, the cleanup block
will attempt to access beyond the end of the array. Switch
to using VIR_EXPAND_N instead of VIR_REALLOC_N to protect against
this mistake
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

If OOM occurs in qemuDomainCCWAddressSetCreate, it jumps to
a cleanup block and frees the partially initialized object.
It then mistakenly returns the address of the just free'd
pointer instead of NULL.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

If a OOM error occurs in virGetConnect, this may cause the
virConnectDispose method to de-reference a NULL pointer,
since the close callback will not have been initialized.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

The virDomainDefParseXML method did not check the return value
of the virBitmapNew API call for NULL. This lead to a crash on
OOM
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

If an OOM error occurs in virSecurityDeviceLabelDefParseXML the
cleanup code may free an uninitialized pointer, causing a crash
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

Start a test case for the virNetServerClient object, which
initially checks the creation of a virIdentityPtr object.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

To allow creation of a virNetSocketPtr instance from a pre-opened
socketpair FD, add a virNetSocketNewConnectSockFD method.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

Signed-off-by: NGiuseppe Scrivano <gscrivan@redhat.com>
Signed-off-by: NEric Blake <eblake@redhat.com>

Signed-off-by: NGiuseppe Scrivano <gscrivan@redhat.com>
Signed-off-by: NEric Blake <eblake@redhat.com>

Signed-off-by: NGiuseppe Scrivano <gscrivan@redhat.com>
Signed-off-by: NEric Blake <eblake@redhat.com>

Signed-off-by: NGiuseppe Scrivano <gscrivan@redhat.com>
Signed-off-by: NEric Blake <eblake@redhat.com>

Signed-off-by: NGiuseppe Scrivano <gscrivan@redhat.com>
Signed-off-by: NEric Blake <eblake@redhat.com>

Signed-off-by: NGiuseppe Scrivano <gscrivan@redhat.com>
Signed-off-by: NEric Blake <eblake@redhat.com>

The new function virConnectGetCPUModelNames allows to retrieve the list
of CPU models known by the hypervisor for a specific architecture.
Signed-off-by: NGiuseppe Scrivano <gscrivan@redhat.com>
Signed-off-by: NEric Blake <eblake@redhat.com>

Nehal J. Wani reported on IRC a rather interesting build failure:

In file included from util/virnetdevbridge.c:53:0:
/usr/include/linux/in6.h:30:8: error: redefinition of 'struct in6_addr'
 struct in6_addr {
        ^

I traced it to the fact that he ran 'git pull; make check' across
commit e62e0094.  What happened is that the configure changes
result in a new variable that was set to be defined on his system,
but config.h was not regenerated to contain the value of that
variable.  Running 'make' instead of 'make check' cleaned up the
problem.  A bit more investigation, and I see that in Makefile.am,
automake sticks rules that rebuild config.h as part of 'make all',
and that we also had a dependency 'check-local: all'; BUT the
rule for check-local is run only at the point when the top-level
directory is visited.  Automake documents that SUBDIRS should
contain an explicit '.' at the point the top-level should be
visited (defaulting to last, if it doesn't appear).  Sure enough,
with this patch, 'make check' now does the top-level 'all' rules,
which regenerates 'config.h' BEFORE compiling any code that might
depend on changed content of that file.

* Makefile.am (SUBDIRS): Put '.' first, not last.
Signed-off-by: NEric Blake <eblake@redhat.com>

The fix for CVE-2013-4311 had a pre-requisite enhancement
to the identity code

  commit db7a5688
  Author: Daniel P. Berrange <berrange@redhat.com>
  Date:   Thu Aug 22 16:00:01 2013 +0100

    Also store user & group ID values in virIdentity

This had a typo which caused the group ID to overwrite the
user ID string. This meant any checks using this would have
the wrong ID value. This only affected the ACL code, not the
initial polkit auth. It also leaked memory.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

The xml files are generated in build directory and thus docs/newapi.xsl
was not able to find them in a VPATH build.
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

If a dir does not exist, raise an immediate error in logs
rather than letting virFileResolveAllLinks fail, since this
gives better error reporting to the user.
Signed-off-by: NChen Hanxiao <chenhanxiao@cn.fujitsu.com>

When FUSE is enabled, the LXC container is setup with
a custom /proc/meminfo file. This file uses "KB" as a
suffix, rather than "kB" which is the kernel's style.
Fix this inconsistency to avoid confusing apps.
Signed-off-by: NChen Hanxiao <chenhanxiao@cn.fujitsu.com>

The ABI compatibility check for domain features didn't check the
expanded HyperV and APIC EOI values, thus possibly allowing change in
guest ABI.

Add the check and use typecasted switch statement to warn developers
when adding a new HyperV feature.

The virDomainGetVcpuPinInfo python wrapper had a potential use of
uninitialized values
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

Since the wait is done during migration (still inside
QEMU_ASYNC_JOB_MIGRATION_OUT), the code should enter the monitor as such
in order to prohibit all other jobs from interfering in the meantime.
This patch fixes bug #1009886 in which qemuDomainGetBlockInfo was
waiting on the monitor condition and after GetSpiceMigrationStatus
mangled its internal data, the daemon crashed.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1009886

This splits up the version parsing code into a callable API like QEMU
help/version string parsing so that we can test it as we need to add
additional patterns for newer versions/products.

Rather than looking up the path to vmrun each time we call it, look it
up once and save it. This sets up the ability for us to detect where the
path is on Mac OS X and not have to look it up each time we execute it.

The VMware driver supports multiple backends for the VMware Player and
VMware Workstation, convert this logic into enum and use VIR_ENUM_IMPL()
to provide conversions to and from strings.

In case of an error, qemuMonitorTestNewSimple returns NULL.
Error out instead of dereferencing it.

Found by Coverity, reported by John Ferlan.

Coverity complains that the test suite did not check the
return value of dbus_message_iter_append_basic() as we did
in most other places.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

This resolves https://bugzilla.redhat.com/show_bug.cgi?id=1008903

The Q35 machinetype has an implicit SATA controller at 00:1F.2 which
isn't given the "expected" id of ahci0 by qemu when it's created. The
original suggested solution to this problem was to not specify any
controller for the disks that use the default controller and just
specify "unit=n" instead; qemu should then use the first IDE or SATA
controller for the disk.

Unfortunately, this "solution" is ignorant of the fact that in the
case of SATA disks, the "unit" attribute in the disk XML is actually
*not* being used for the unit, but is instead used to specify the
"bus" number; each SATA controller has 6 buses, and each bus only
allows a single unit. This makes it nonsensical to specify unit='n'
where n is anything other than 0. It also means that the only way to
connect more than a single device to the implicit SATA controller is
to explicitly give the bus names, which happen to be "ide.$n", where
$n can be replaced by the disk's "unit" number.

After commit 8aecd351 it'll detect
that a required option is not defined and it will assert and exit with:

virsh.c:1364: vshCommandOpt: Assertion `valid->name' failed.

Problem has been latent since commit ed23b106.
Signed-off-by: NEric Blake <eblake@redhat.com>

This macro is there to test the simplest monitor functions we have,
those in the form of: int ( *func) (qemuMonitorPtr). So far, we have
seven such functions.

Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

A previous patch used existing #define for the various files in /etc/pki
instead of hardcoding them in the help output. However I missed that
remote_driver.h contains #define for more paths that are present
in the daemon help output.
This commit uses the existing constants for the path to the
configuration file and to the libvirt sockets.

It's not used anywhere, but should be pointing to
$sysconfdir/libvirt/libvirtd.conf, not $sysconfdir/libvirtd.conf

In commit 6d41cb87, the interface for virEventAddHandleFunc was changed.
This patch updates the documentation for virEventAddHandle to reflect
the new significance of the return value. Also, both functions now
mention -1 for failure.

The 'stats' variable was not initialized to NULL, so if some
early validation of the RPC call fails, it is possible to jump
to the 'cleanup' label and VIR_FREE an uninitialized pointer.
This is a security flaw, since the API can be called from a
readonly connection which can trigger the validation checks.

This was introduced in release v0.9.1 onwards by

  commit 158ba873
  Author: Daniel P. Berrange <berrange@redhat.com>
  Date:   Wed Apr 13 16:21:35 2011 +0100

    Merge all returns paths from dispatcher into single path
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>