* Move platform specific things (e.g. firewalling and route
collision checks) into bridge_driver_platform
* Create two platform specific implementations:
- bridge_driver_linux: Linux implementation using iptables,
it's actually the code moved from bridge_driver.c
- bridge_driver_nop: dumb implementation that does nothing
Signed-off-by: Eric Blake <eblake@redhat.com>
*src/util/virstoragefile.c: Add a helper function to get
the first name of missing backing files, if the name is NULL,
it means the diskchain is not broken.
*src/qemu/qemu_domain.c: qemuDiskChainCheckBroken(disk) to
check if its chain is broken
Refactor this function to make it focus on disk presence checking,
including diskchain checking, and not only for CDROM and Floppy.
This change is good for the following patches.
The virDomainDef is allocated by the caller and also used after
calling to xenDaemonCreateXML. So it must not get freed by the
callee.
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Make the virCgroupNewMachine method try to use systemd-machined
first. If that fails, then fallback to using the traditional
cgroup setup code path.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
When systemd is involved in managing processes, it may start
killing off & tearing down croups associated with the process
while we're still doing virCgroupKillPainfully. We must
explicitly check for ENOENT and treat it as if we had finished
killing processes
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Systemd uses a named cgroup mount for tracking processes. Add
it as another type of controller, albeit one which we have to
special case in a number of places. In particular we must
never create/delete directories there, nor add tasks. Essentially
the systemd mount is to be considered read-only for libvirt.
With this change both the virCgroupDetectPlacement and
virCgroupCopyPlacement methods must be invoked. The copy
placement method will copy setup for resource controllers
only. The detect placement method will probe for any
named controllers, or resource controllers not already
setup.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
There are some interesting escaping rules to consider when dealing
with systemd slice/scope names. Thus it is helpful to have APIs
for formatting names
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Although this isn't apparently needed for the guest agent itself, the
test I will be adding later depends on the newline as a separator of
messages to process.
this patch introduce the console api in libxl driver for both pv and
hvm guest. and import and update the libxlMakeChrdevStr function
which was deleted in commit dfa1e1dd.
Signed-off-by: Bamvor Jian Zhang <bjzhang@suse.com>
This function is needed for virt-login-shell. Also modify virGirUserDirectory
to use the new function, to simplify the code.
Signed-off-by: Eric Blake <eblake@redhat.com>
The VIR_DOMAIN_PAUSED_GUEST_PANICKED constant is badly named,
leaking the QEMU event name. Elsewhere in the API we use
'CRASHED' rather than 'PANICKED', and the addition of 'GUEST'
is redundant since all events are guest related.
Thus rename it to VIR_DOMAIN_PAUSED_CRASHED, which matches
with VIR_DOMAIN_RUNNING_CRASHED and VIR_DOMAIN_EVENT_CRASHED.
It was added in commit 14e7e0ae8db9843aea80245a3d9e6cf5f2ef720d
which post-dates v1.1.0, so is safe to rename before 1.1.1
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The VIR_DOMAIN_SHUTDOWN_CRASHED state constant does not appear
to be used in the QEMU code anyway. It also doesn't make much
(any) sense, since the 'shutdown' state is a transient state
between 'running' and 'shutoff' and when a guest crashes, it
does not end up in a 'shutdown' state, only 'shutoff'.
It was added in commit 14e7e0ae8db9843aea80245a3d9e6cf5f2ef720d
which post-dates v1.1.0, so is safe to remove before 1.1.1
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The way we were casting small (<32bit) integers was broken
on big endian hosts, causing stack smashing. This was detected
in the test suite either by test failures due to incorrect
results, or by libc/gcc abort'ing with its stack canary
triggered.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Depending on the set of mingw packages installed, it is possible
that other .c files hit the mingw header pollution from the
virdbus.h file.
In file included from ../../src/rpc/virnetserver.c:39:0:
../../src/util/virdbus.h:41:35: error: expected ';', ',' or ')' before 'struct'
const char *interface,
^
* src/util/virdbus.h (virDBusCallMethod): Match .c file change.
Signed-off-by: Eric Blake <eblake@redhat.com>
On platforms without decent group support, the build failed:
Cannot export virGetGroupList: symbol not defined
./.libs/libvirt_security_manager.a(libvirt_security_manager_la-security_dac.o): In function `virSecurityDACPreFork':
/home/eblake/libvirt-tmp/build/src/../../src/security/security_dac.c:248: undefined reference to `virGetGroupList'
collect2: error: ld returned 1 exit status
* src/util/virutil.c (virGetGroupList): Provide dummy implementation.
Signed-off-by: Eric Blake <eblake@redhat.com>
Our recent conversion to make VIR_ALLOC report oom wasn't
tested on mingw:
In file included from ../../src/util/virthread.c:29:0:
../../src/util/virthreadwin32.c: In function 'virCondWait':
../../src/util/virthreadwin32.c:166:81: error: 'VIR_FROM_THIS' undeclared (first use in this function)
if (VIR_REALLOC_N(c->waiters, c->nwaiters + 1) < 0) {
^
* src/util/virthreadwin32.c (VIR_FROM_THIS): Define.
Signed-off-by: Eric Blake <eblake@redhat.com>
The previous patch was incomplete.
CC libvirt_util_la-vircgroup.lo
../../src/util/vircgroup.c:70:12: error: 'virCgroupPartitionEscape' declared 'static' but never defined [-Werror=unused-function]
static int virCgroupPartitionEscape(char **path);
^
* src/util/vircgroup.c (virCgroupPartitionEscape): Move forward
declaration inside conditional.
Signed-off-by: Eric Blake <eblake@redhat.com>
The virCgroupValidateMachineGroup method calls some functions
which are only conditionally compiled, thus it too must be
made conditional. This fixes the build on non-Linux hosts.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
A VPATH build 'make check' was failing with:
GEN check-driverimpls
Can't open ../../src/../../src/lxc/lxc_monitor_protocol.h: No such file or directory at ../../src/check-driverimpls.pl line 29, <> line 27153.
Can't open ../../src/../../src/lxc/lxc_monitor_protocol.c: No such file or directory at ../../src/check-driverimpls.pl line 29, <> line 27153.
...
GEN check-aclrules
cannot read ../../src/../../src/remote/remote_protocol.x at ../../src/check-aclrules.pl line 128.
because $(srcdir) was being prepended to file names that already
included it.
* src/Makefile.am (check-driverimpls): Don't add srcdir twice.
Signed-off-by: Eric Blake <eblake@redhat.com>
When the legacy Xen driver probes with a NULL URI, and
finds itself running on Xen, it will set conn->uri. A
little bit later though it checks to see if libxl support
exists, and if so declines the driver. This leaves the
conn->uri set to 'xen:///', so if libxl also declines
it, it prevents probing of the QEMU driver.
Once a driver has set the conn->uri, it must *never*
decline an open request. So we must move the libxl
check earlier
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=981094
The commit 0ad9025ef introduce qemu flag QEMU_CAPS_DEVICE_VIDEO_PRIMARY
for using -device VGA, -device cirrus-vga, -device vmware-svga and
-device qxl-vga. In use, for -device qxl-vga, mouse doesn't display
in guest window like the desciption in above bug.
This patch try to use -device for primary video when qemu >=1.6 which
contains the bug fix patch
Otherwise, with new enough gcc compiling at -O2, the build fails with:
../../src/conf/domain_conf.c: In function ‘virDomainDeviceDefPostParse’:
../../src/conf/domain_conf.c:2821:29: error: ‘cnt’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
for (i = 0; i < *cnt; i++) {
^
../../src/conf/domain_conf.c:2795:20: note: ‘cnt’ was declared here
size_t i, *cnt;
^
../../src/conf/domain_conf.c:2794:30: error: ‘arrPtr’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
virDomainChrDefPtr **arrPtr;
^
* src/conf/domain_conf.c (virDomainChrGetDomainPtrs): Always
assign into output parameters.
Signed-off-by: Eric Blake <eblake@redhat.com>
By setting the default partition in libvirt_lxc it is not
visible when querying the live XML. Move setting of the
default partition into libvirtd virLXCProcessStart
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Decrementing it when it was already 0 causes an invalid free
in virNetworkDefUpdateDNSHost if virNetworkDNSHostDefParseXML
fails and virNetworkDNSHostDefClear gets called twice.
virNetworkForwardDefClear left the number untouched even if it
freed all the elements.
If the app has provided a whitelist of controllers to be used,
we skip detecting its mount point. We still, however, fill in
the placement info which later confuses the machine name
validation code. Skip detecting placement if the controller
mount point is not set
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
When a VM has an 'emulator' child cgroup present, we must
strip off that suffix when detecting the cgroup for a
machine
Rename the virCgroupIsValidMachineGroup method to
virCgroupValidateMachineGroup to make a bit clearer
that this isn't simply a boolean check, it will make
changes to the object.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The virCgroupIsValidMachine does not need to be called from
outside the cgroups file now, so make it static.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Instead of requiring drivers to use a combination of calls
to virCgroupNewDetect and virCgroupIsValidMachine, combine
the two into virCgroupNewDetectMachine
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Both virStoragePoolFree and virStorageVolFree reset the last error,
which might lead to the cryptic message:
An error occurred, but the cause is unknown
When the volume wasn't found, virStorageVolFree was called with NULL,
leading to an error:
invalid storage volume pointer in virStorageVolFree
This patch changes it to:
Storage volume not found: no storage vol with matching name 'tomato'
Add protection such that the virCgroupRemove and
virCgroupKill* do not do anything to the root cgroup.
Killing all PIDs in the root cgroup does not end well.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Instead of requiring one API call to create a cgroup and
another to add a task to it, introduce a new API
virCgroupNewMachine which does both jobs at once. This
will facilitate the later code to talk to systemd to
achieve this job which is also atomic.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
