Setting of local variables in virStorageBackendCreateQemuImgCmd was
unnecessarily cluttered with ternary operators and repeated testing of
of conditions.
This patch refactors the function to use if statements and improves
error reporting in case inputvol is specified but does not contain
target path. Previously we would complain about "unknown storage vol
type 0" instead of the actual problem.
After fixing an invalid usage of virDomainNetDef in OpenVZ driver,
a coverage issue appeared. This was caused by a still invalid usage
of net->data.ethernet.dev for non ethernet networking.
Currently, a listen address for a SPICE server can be specified. Later,
when the domain is migrated, we need to relocate the graphics which
involves telling new destination to the SPICE server. However, we can't
just assume the listen address is the new location, because the listen
address can be ANYCAST (0.0.0.0 for IPv4, :: for IPv6). In which case,
we want to pass the remote hostname. But there are some troubles with
ANYCAST. In both IPv4 and IPv6 it has many ways for specifying such
address. For instance, in IPv4: 0, 0.0, 0.0.0, 0.0.0.0. The number of
variations gets bigger in IPv6 world. Hence, in order to check for
ANYCAST address sanely, we should take the provided listen address,
parse it and format back in it's full form. Which is exactly what this
patch does.
Such as on FreeBSD. Broken in commit aa2a4cff7.
* src/util/virstoragefile.c (virStorageFileResize): Add missing ';',
mark conditionally unused variables.
Signed-off-by: Eric Blake <eblake@redhat.com>
By default files in a FUSE mount can only be accessed by the
user which created them, even if the file permissions would
otherwise allow it. To allow other users to access the FUSE
mount the 'allow_other' mount option must be used. This bug
prevented non-root users in an LXC container from reading
the /proc/meminfo file.
https://bugzilla.redhat.com/show_bug.cgi?id=967977
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Earlier commit f7e8653f dropped support for using LXC with
kernels having single-instance devpts filesystem from the
LXC controller. It forgot to remove the same code from the
LXC container setup.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
As the document for "virsh-resize" says:
<...>
Attempts to shrink the volume will fail unless I<--shrink> is present;
</...>
This makes sense as it at least prevent the user shrinking the important
data of volume without a notice.
The document for "vol-resize" says the new capacity will be sparse
unless "--allocate" is specified, however, the "--allocate" flag
is never implemented. This implements the "--allocate" flag for
fs backend's raw type volume, based on posix_fallocate and the
syscall SYS_fallocate.
The work was done at the time of snapshot xmlstring parsing
if (offline && def->memory &&
def->memory != VIR_DOMAIN_SNAPSHOT_LOCATION_NONE) {
virReportError(...);
}
This patch is in relation to Bug 966449:
https://bugzilla.redhat.com/show_bug.cgi?id=966449
This is a patch addressing the coredump.
Thread 1 must be calling nwfilterDriverRemoveDBusMatches(). It does so with
nwfilterDriverLock held. In the patch below I am now moving the
nwfilterDriverLock(driverState) further up so that the initialization, which
seems to either take a long time or is entirely stuck, occurs with the lock
held and the shutdown cannot occur at the same time.
Remove the lock in virNWFilterDriverIsWatchingFirewallD to avoid
double-locking.
OpenVZ was accessing ethernet data to obtain the guest iface name
regardless the domain is configured to use ethernet or bridged
networking. This prevented the guest network interface to be rightly
named for bridged networking.
The RPC limits for cpu maps didn't allow to use libvirt on ultra big
boxes. This patch increases size of the limits to support a maximum of
16384 cpus on the host with a maximum of 4096 cpus per guest.
The full cpu map of such a system takes 8 megabytes and the map for
vcpu pinning is 2 kilobytes long.
With unknown good reasons, the attribute "bus" of scsi device
address is always set to 0, same for attribute "target". (See
virDomainDiskDefAssignAddress).
Though we might need to change the algorithm to honor "bus"
and "target" too, that's a different issue. The address generator
for scsi host device in this patch just follows the unknown
good reasons, only considering the "controller" and "unit".
It walks through all scsi controllers and their units, to see
if the address $controller:0:0:$unit can be used (if not used
by any disk or scsi host device yet), if found one, it sits on
it, otherwise, it creates a new controller (actually the controller
is implicitly created by someone else), and sits on
$new_controller:0:0:0 instead.
This should resolve:
https://bugzilla.redhat.com/show_bug.cgi?id=959191
The problem was that qemuUpdateActivePciHostdevs was returning 0
(success) when no hostdevs were present, but would otherwise return -1
(failure) even when it completed successfully. It is only called from
qemuProcessReconnect(), and when qemuProcessReconnect got back an
error, it would not only stop reconnecting, but would terminate the
guest qemu process "to remove danger of it ending up running twice if
user tries to start it again later".
(This bug was introduced in commit 011cf7ad, which was pushed between
v1.0.2 and v1.0.3, so all maintenance branches from v1.0.3 up to 1.0.5
will need this one line patch applied.)
We can't use GNULIB's fprintf-posix due to licensing
incompatibilities. We do already have a portable
formatting via virAsprintf() which we got from GNULIB
though. We can use to create a virFilePrintf() function.
But really gnulib could just provide a 'fprintf'
module, that depended on just its 'asprintf' module.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
A literal IPv6 must be escaped, otherwise migration fails with:
unable to execute QEMU command 'drive-mirror': address resolution failed
for f0::0d:5901: Servname not supported for ai_socktype
since QEMU treats everything after the first ':' as the port.
https://bugzilla.redhat.com/show_bug.cgi?id=903480
During domain destruction it's possible that the learnIPAddressThread has
already removed the interface prior to the teardown filter path being run.
The teardown code would only be telling the thread to terminate.
Commit '6afdfc8e' adjusted the exit and error paths to go through the error
and cleanup labels, but neglected to remove the return ret prior to cleanup.
Also noted the 'type' xml string fetch was never checked for NULL which
could lead to some interesting results.
If snapshot creation failed for example due to invalid use of the
"REUSE_EXTERNAL" flag, libvirt killed access to the original image file
instead of the new image file. On machines with selinux this kills the
whole VM as the selinux context is enforced immediately.
* qemu_driver.c:qemuDomainSnapshotUndoSingleDiskActive():
- Kill access to the new image file instead of the old one.
Partially resolves: https://bugzilla.redhat.com/show_bug.cgi?id=906639
Commit d671121d was incomplete; I hit another compile fail on
cygwin not finding the correct rpc/rpc.h.
* src/Makefile.am (virtlockd_CFLAGS): Add XDR_CFLAGS.
Signed-off-by: Eric Blake <eblake@redhat.com>
A bug in Cygwin [1] and poor error messages from gcc [2] lead
to this confusing compilation error:
qemu/qemu_monitor.c:418:9: error: passing argument 2 of 'sendmsg' from incmpatible pointer type
/usr/include/sys/socket.h:42:11: note: expected 'const struct msghdr *' but argument is of type 'struct msghdr *'
[1] http://cygwin.com/ml/cygwin/2013-05/msg00451.html
[2] http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57475
* src/qemu/qemu_monitor.c (includes): Include <sys/socket.h>
before <sys/un.h>.
Signed-off-by: Eric Blake <eblake@redhat.com>
This is a recurring problem for cygwin :)
For example, see commit 23a4df88.
qemu/qemu_driver.c: In function 'qemuStateInitialize':
qemu/qemu_driver.c:691:13: error: format '%d' expects type 'int', but argument 8 has type 'uid_t' [-Wformat]
* src/qemu/qemu_driver.c (qemuStateInitialize): Add casts.
* daemon/remote.c (remoteDispatchAuthList): Likewise.
Signed-off-by: Eric Blake <eblake@redhat.com>
A cygwin build of the qemu driver fails with:
qemu/qemu_process.c: In function 'qemuPrepareCpumap':
qemu/qemu_process.c:1803:31: error: 'CPU_SETSIZE' undeclared (first use in this function)
CPU_SETSIZE is a Linux extension in <sched.h>; a bit more portable
is using sysconf if _SC_NPROCESSORS_CONF is defined (several platforms
have it, including Cygwin). Ultimately, I would have preferred to
use gnulib's 'nproc' module, but it is currently under an incompatible
license.
* src/qemu/qemu_conf.h (QEMUD_CPUMASK_LEN): Provide definition on
cygwin.
Signed-off-by: Eric Blake <eblake@redhat.com>
On cygwin, the build failed with:
In file included from ./rpc/virnetmessage.h:24:0,
from ./rpc/virnetclient.h:29,
from locking/lock_driver_lockd.c:31:
./rpc/virnetprotocol.h:9:21: fatal error: rpc/rpc.h: No such file or directory
* src/Makefile.am (lockd_la_CFLAGS): Add XDR_CFLAGS.
Signed-off-by: Eric Blake <eblake@redhat.com>
Compilation on cygwin failed due to a bug in the sasl headers
present on that platform (libsasl2-devel 2.1.26):
In file included from rpc/virnetserverclient.c:27:0:
/usr/include/sasl/sasl.h:230:38: error: expected declaration specifiers or '...' before 'size_t'
Upstream is aware of their bug:
https://bugzilla.cyrusimap.org/show_bug.cgi?id=3759
* src/rpc/virnetserverclient.c (includes): Ensure size_t is
defined before using sasl.h.
Signed-off-by: Eric Blake <eblake@redhat.com>
Bummer, I committed, then fixed a typo, then tested, and forgot to
amend the commit before pushing 7d21d6b6.
* src/rpc/virnettlscontext.c (includes): Use correct spelling.
Building when configured --with-libvirtd=no fails with:
In file included from ../src/qemu/qemu_command.h:30:0,
from testutilsqemu.h:4,
from networkxml2xmltest.c:14:
../src/qemu/qemu_conf.h:175:5: error: expected specifier-qualifier-list before 'virStateInhibitCallback'
* src/libvirt_internal.h (virStateInhibitCallback): Move outside
of conditional.
Signed-off-by: Eric Blake <eblake@redhat.com>
Building with gnutls 3.2.0 (such as shipped with current cygwin) fails
with:
rpc/virnettlscontext.c: In function 'virNetTLSSessionGetKeySize':
rpc/virnettlscontext.c:1358:5: error: implicit declaration of function 'gnutls_cipher_get_key_size' [-Wimplicit-function-declaration]
Yeah, it's stupid that gnutls broke API by moving their declaration
into a new header without including that header from the old one,
but it's easy enough to work around, all without breaking on gnutls
1.4.1 (hello RHEL 5) that lacked the new header.
* configure.ac (gnutls): Check for <gnutls/crypto.h>.
* src/rpc/virnettlscontext.c (includes): Include additional header.
Signed-off-by: Eric Blake <eblake@redhat.com>
And error out if the casted value is not same with the original
one, which prevents the bug on platform(s) where uid_t/gid_t
has different size with long.
