We need to update one test-case because now new cgroup object will be
created only if there is any cgroup backend available.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
We will need to extract current cgroup v1 implementation into separate
backend because there will be new cgroup v2 implementation and both will
have to co-exist.
Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
This will be required once cgroup v2 is introduced. The cgroup
detection is not simple and we will have multiple backends so we
should not just jump into the middle of the detection code.
In order to use virCgroupNewSelf we need to create all the remaining
data files:
- {name}.cgroups represents /proc/cgroups, it is a list of cgroup
controllers compiled into kernel
- {name}.self.cgroup represents /proc/self/cgroup, it describes
cgroups to which the process belongs
For "no-cgroups" we need to modify the expected behavior because
virCgroupNewSelf() will fail if there are no controllers available.
Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Because we can set which files to return for cgroup tests there
is no need to have special function tailored to run tests.
Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Once we introduce cgroup v2 support we need to handle processes and
threads differently.
Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Use flags in virCgroupAddTaskInternal instead of boolean parameter.
Following patch will add new flag to indicate thread instead of process.
Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
In cgroup v2 we need to handle processes and threads differently,
following patch will introduce virCgroupAddThread.
Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
If we are on host with systemd we need to build cgroup hierarchy
ourselves for controllers that are not managed by systemd.
As a starting parent we need to force root group because
virCgroupMakeGroup() takes that parent in order to inherit values
for cpuset controller.
By default cpuset controller is managed by systemd so we will never
hit the issue but for v2 cgroups we need to use parent cgroup every
time.
Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
If virCgroupEnableMissingControllers() fails it could have already
created some directories, we should clean it up as well.
Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
There seems to be no need to add the ignore_value wrapper or
caste with (void) to the unlink() calls, so let's just remove
them. I assume at one point in time Coverity complained. So,
let's just be consistent - those that care to check the return
status can and those that don't can just have the naked unlink.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
This patch is introducing cache monitor(CMT) to cache and
memory bandwidth monitor(MBM) for monitoring CPU memory
bandwidth.
The host capability of the two monitors is also introduced
in this patch.
For CMT, the host capability is shown like:
<host>
...
<cache>
<bank id='0' level='3' type='both' size='15' unit='MiB' cpus='0-5'>
<control granularity='768' min='1536' unit='KiB' type='both' maxAllocs='4'/>
</bank>
<monitor level='3' 'reuseThreshold'='270336' maxMonitors='176'>
<feature name='llc_occupancy'/>
</monitor>
</cache>
...
</host>
For MBM, the capability is shown like this:
<host>
...
<memory_bandwidth>
<node id='1' cpus='6-11'>
<control granularity='10' min ='10' maxAllocs='4'/>
</node>
<monitor maxMonitors='176'>
<feature name='mbm_total_bytes'/>
<feature name='mbm_local_bytes'/>
</monitor>
</memory_bandwidth>
...
</host>
Signed-off-by: Wang Huaqiang <huaqiang.wang@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
This patch introduces the resource monitor and creates the interface
for getting host capability of resource monitor from the system resource
control file system.
The resource monitor takes the role of RDT monitoring group and could be
used to monitor the resource consumption information, such as the last
level cache occupancy and the utilization of memory bandwidth.
Signed-off-by: Wang Huaqiang <huaqiang.wang@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
All of the ones being removed are pulled in by internal.h. The only
exception is sanlock which expects the application to include <stdint.h>
before sanlock's headers, because sanlock prototypes use fixed width
int, but they don't include stdint.h themselves, so we have to leave
that one in place.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Acked-by: Michal Privoznik <mprivozn@redhat.com>
It doesn't really make sense for us to have stdlib.h and string.h but
not stdio.h in the internal.h header.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Acked-by: Michal Privoznik <mprivozn@redhat.com>
So far the virLockSpaceAcquireResource() locks the first byte in
the underlying file. But caller might want to lock other range.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Functions that deal with virPCIDeviceAddress exclusively
belong to util/virpci.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
commit b00c9c39 removed the label end_of_netlink_messages and 'return
table' statement, It causes the function virArpTableGet doesn't return
a proper virArpTable pointer.
How to reproduce:
# virsh domiflist sles12sp3
Interface Type Source Model MAC
-------------------------------------------------------
vnet0 network default virtio 52:54:00💿02:e6
# virsh domifaddr sles12sp3 --source arp
error: Failed to query for interfaces addresses
error: An error occurred, but the cause is unknown
It seems that the "if (nh->nlmsg_type == NLMSG_DONE)" statement won't be
meted. So this patch adds 'return table' when the iterations of nlmsghdr
for loop is over.
Signed-off-by: Lin Ma <lma@suse.com>
Reviewed-by: Chen Hanxiao <chenhanxiao@gmail.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Instead of duplicating the code from virGet{User,Group}IDByName(), which are
static anyway, extend those functions to accept NULL pointers for the result and
a boolean for controlling the error reporting.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
This patch simplifies virNetDevBridgeCreate and virNetDevMacVLanCreate
functions by making use of the virNetlinkNewLink helper.
Signed-off-by: Shi Lei <shi_lei@massclouds.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
This patch adds wrapper macros around nla_nest_[start|end] and nla_put,
thus getting rid of some redundancy and making virNetlinkNewLink more
readable.
Signed-off-by: Shi Lei <shi_lei@massclouds.com>
Signed-off-by: Erik Skultety <eskultet@redhat.com>
This patch introduces virNetlinkNewLink helper which wraps the common
libnl/netlink code to create a new link.
Signed-off-by: Shi Lei <shi_lei@massclouds.com>
Signed-off-by: Erik Skultety <eskultet@redhat.com>
nlmsg_append from the libnl library provides exactly the same
functionality, so we should rely on that instead. This also allows us to
drop the aforementioned function completely.
Signed-off-by: Shi Lei <shi_lei@massclouds.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
@resp is allocated by virNetlinkCommand and the caller is responsible
for freeing the buffer. Since we already converted this module to use
VIR_AUTO{FREE,PTR} macros, let's resolve the problem by using them.
Signed-off-by: Shi Lei <shi_lei@massclouds.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
There's a single user for it which takes an existing
virPCIDeviceAddress, passes its various bits to the
function which in turn constructs a virPCIDevice and
then copies the string representation for the caller
to use: we can use virPCIDeviceAddressAsString()
instead and avoid creating the virPCIDevice in the
first place. Since the function ends up having no
users after the change, we can just drop it.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
The struct is called virPCIDeviceAddress and the
functions operating on it should be named accordingly.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Add a new modifier letter for virJSONValueObjectAddVArgs which will add
a boolean value with our tristate semantics. The value is omitted when
the _ABSENT value is used.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
A generic "failed to parse xml document" message without telling us
which XML file failed is quite unhelpful.
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This fixes virCgroupEnableMissingControllers where virCgroupRemove
was not called in case virCgroupMakeGroup failed.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
The case where we need path of any controller is only for internal use
so move it out to a different function.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
The 'mntDir' is part of 'struct mntent' as a result of getmntent_r
therefore we should not mangle with it.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Fixes:
https://www.redhat.com/archives/libvir-list/2017-January/msg00978.html
QEMU is probed through monitor fd to check capabilities during libvirtd init.
The monitor fd is closed after probing by virQEMUCapsInitQMPCommandFree
that calls virQEMUCapsInitQMPCommandAbort that calls qemuMonitorClose,
the latter one notifies the event loop via an interrupt handle in
qemuMonitorUnregister and after then closes monitor fd.
There could be a case when interrupt is sent after eventLoop is unlocked
but before virEventPollRunOnce blocks in poll, shortly before file
descriptor is closed by qemuMonitorClose. Then poll receives closed monitor
fd in fdset and returns EBADF.
EBADF is not mentioned as a valid errno on macOS poll man-page but such
behaviour can appear release-to-release, according to cpython:
https://github.com/python/cpython/blob/master/Modules/selectmodule.c#L1161
The change also fixes the issue in qemucapabilitiestest. It returns
Bad file descriptor message 25 times without the fix.
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
In cases where virProcessKillPainfully already reailizes that
SIGTERM wasn't enough we are partially on a bad path already.
Maybe the system is overloaded or having serious trouble to free and
reap resources in time.
In those case give the SIGKILL that was sent after 10 seconds some more
time to take effect if force was set (only then we are falling back to
SIGKILL anyway).
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
It was found that in cases with host devices virProcessKillPainfully
might be able to send signal zero to the target PID for quite a while
with the process already being gone from /proc/<PID>.
That is due to cleanup and reset of devices which might include a
secondary bus reset that on top of the actions taken has a 1s delay
to let the bus settle. Due to that guests with plenty of Host devices
could easily exceed the default timeouts.
To solve that, this adds an extra delay of 2s per hostdev that is associated
to a VM.
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Rather than forcing the caller to generate an error, let's
generate the Username or Password error message failure if
the auth->cb fails. This is the last error path that needs
a specific message for various callers.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
If we never find the valid credtype in the list, then we'd return
NULL without an error signaled forcing the caller to generate one
that will probably be incorrect. Let's be specific.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
Now that the virAuthGet*Path helpers make the checks, we can remove
them from here.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
Before trying to call @auth->cb, let's ensure it exists.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
Before trying to dereference @auth, let's ensure it's valid.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
Instead of adding the same check for every drivers, execute the checks
in virAuthGetUsername and virAuthGetPassword. These funtions are called
when user is not set in the URI.
Signed-off-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
Currently iohelper's error log is recorded in virFileWrapperFdClose.
However, if something goes wrong the caller might not even get to
calling virFileWrapperFdClose and call virFileWrapperFdFree
directly. Therefore the error reporting should happen there.
Signed-off-by: xinhua.Cao <caoxinhua@huawei.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
While in most cases the values are going to be much
smaller than our arbitrary 4096 limit, there is really
no guarantee that would be the case: in fact, a few
aarch64 servers have been spotted in the wild with
core_id as high as 6216.
Take advantage of virBitmap's ability to automatically
alter its size at runtime to accomodate such values.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
We already have a function which parses
thread_siblings_list for a CPU and returns the
corresponding bitmap, and a bunch of utility functions
that perform operations on bitmaps such as counting
the number of set bits: use those to implement the
function instead of having an additional ad-hoc parser
for thread_siblings.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Caused by commit f7d0663d49. The problem is missing libnl library on
these platforms, so the VIR_DEFINE_AUTOPTR_FUNC has to be compiled in
conditionally.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Add new XML section to report host's memory bandwidth allocation
capability. The format as below example:
<host>
.....
<memory_bandwidth>
<node id='0' cpus='0-19'>
<control granularity='10' min ='10' maxAllocs='8'/>
</node>
</memory_bandwidth>
</host>
granularity ---- granularity of memory bandwidth, unit percentage.
min ---- minimum memory bandwidth allowed, unit percentage.
maxAllocs ---- maximum memory bandwidth allocation group supported.
Signed-off-by: Bing Niu <bing.niu@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Introduce an API to allow setting of the MBA from domain XML.
Signed-off-by: Bing Niu <bing.niu@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Introduce an API that will traverse the memory bandwidth data calling
a callback function for each defined bandwidth entry.
Signed-off-by: Bing Niu <bing.niu@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Introduce virResctrlMemoryBandwidthSubtract and
virResctrlAllocMemoryBandwidth to be used as part of
the virResctrlAllocAssign processing to configure
the available memory bandwidth.
Signed-off-by: Bing Niu <bing.niu@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Introduce virResctrlAllocMemoryBandwidthFormat and
virResctrlAllocParseMemoryBandwidthLine which will format
and parse an entry in the schemata file for MBA.
Signed-off-by: Bing Niu <bing.niu@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Add memory bandwidth allocation support to virresctrl class.
Introducing virResctrlAllocMemBW which is used for allocating memory
bandwidth. Following virResctrlAllocPerType, it also employs a
nested sparse array to indicate whether allocation is available for
particular last level cache.
Signed-off-by: Bing Niu <bing.niu@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
If we have some membw_info data, then we need to calculate the number
of MBA controllers on the system. The value cannot be obtained from a
direct query to the RDT kernel module, but it is the same as the last
level cache value which is calculated by traversing the cache hierarchy
of host(/sys/bus/cpu/devices/cpuX/cache/).
Signed-off-by: Bing Niu <bing.niu@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Introducing virResctrlInfoMemBW for the information memory bandwidth
allocation information.
Signed-off-by: Bing Niu <bing.niu@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Refactor virResctrlAllocFormat so that it is easy to support other
resource allocation technologies.
Signed-off-by: Bing Niu <bing.niu@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Separate resctrl common information parts from CAT specific parts,
so that common information parts can be reused among different
resource allocation technologies.
Signed-off-by: Bing Niu <bing.niu@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Some functions in virresctrl are for CAT only, while some of other
functions are for resource allocation, not just CAT. So change
their names to reflect the reality.
Signed-off-by: Bing Niu <bing.niu@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant
viralloc.h include, since that has moved from the source module into
the header.
This commit also typedefs virNetlinkMsg to struct nl_msg type for use
with the cleanup macros.
When a variable of type virNetlinkMsg * is declared using VIR_AUTOPTR,
the function nlmsg_free will be run automatically on it when it
goes out of scope.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Add another usage for VIR_AUTOFREE macro which was left in the
commit ec3e878, thereby dropping a VIR_FREE call and and a cleanup
section.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
This reverts commit 9cf38263d0.
Jansson cannot parse QEMU's quirky JSON.
Revert back to yajl.
https://bugzilla.redhat.com/show_bug.cgi?id=1614569
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
This reverts commit bf114decb3.
Jansson cannot parse QEMU's quirky JSON.
Revert back to yajl.
https://bugzilla.redhat.com/show_bug.cgi?id=1614569
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
This reverts commit 8f802c6d86.
Jansson cannot parse QEMU's quirky JSON.
Revert back to yajl.
https://bugzilla.redhat.com/show_bug.cgi?id=1614569
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
This reverts commit ce3c6ef684.
Jansson cannot parse QEMU's quirky JSON.
Revert back to yajl.
https://bugzilla.redhat.com/show_bug.cgi?id=1614569
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
This reverts commit 9e44c2db8a.
Jansson cannot parse QEMU's quirky JSON.
Revert back to yajl.
https://bugzilla.redhat.com/show_bug.cgi?id=1614569
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
This reverts commit 5d40272ea6.
Jansson cannot parse QEMU's quirky JSON.
Revert back to yajl.
https://bugzilla.redhat.com/show_bug.cgi?id=1614569
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
We are freeing the individual strings (which were filled by
virNetDevIPCheckIPv6ForwardingCallback()) but not the array
itself.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Commit <eaf2c9f89107b9f60cf8db2c919f78b987ff7177> moved machineName
generation before virCgroupNewDetectMachine() is called.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
There are few places where dlopen() is called. This call means we
have to link with DLOPEN_LIBS. However, instead of having each
final, installable library linking with it, move the directive to
the source that introduced the dependency.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Jim Fehlig <jfehlig@suse.com>
The same code would be used for storage pools and domain disks.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
This structure will be reused by domain disk images as well.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Commits 7b706f33ac and 4acb7887e4 introduced some compound type *Free
wrappers in order to use them with VIR_DEFINE_AUTOPTR_FUNC. However,
since those were not used in the code right away, Clang complained about
unused functions (static ones that are defined by the macro above).
This patch puts the defined functions in use.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Technically, it was never used ever since commit @f4d06ca8fd9 introduced
it, but the fact that we called VIR_FREE on it was enough for Clang to
never complain about it.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant
viralloc.h include, since that has moved from the source module into
the header.
When a variable of type virPerfPtr is declared using VIR_AUTOPTR,
the function virPerfFree will be run automatically on it when it
goes out of scope.
This commit also adds an intermediate typedef for virPerf
type for use with the cleanup macros.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant
viralloc.h include, since that has moved from the source module into
the header.
When a variable of type virNetlinkHandle * is declared using
VIR_AUTOPTR, the function virNetlinkFree will be run automatically
on it when it goes out of scope.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant
viralloc.h include, since that has moved from the source module into
the header.
When variables of type virNetDevIPAddrPtr and virNetDevIPRoutePtr
are declared using VIR_AUTOPTR, the functions virNetDevIPAddrFree
and virNetDevIPRouteFree, respectively, will be run
automatically on them when they go out of scope.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
This will not only help us in the future when adding more and more
VIR_AUTOPTR instances, we're also consistent in that a compound type
gets its own function which can easily be extended in the future if
necessary.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Signed-off-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant
viralloc.h include, since that has moved from the source module into
the header.
When a variable of type virSocketAddrPtr is declared using
VIR_AUTOPTR, the function virSocketAddrFree will be run
automatically on it when it goes out of scope.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
This will not only help us in the future when adding more and more
VIR_AUTOPTR instances, we're also consistent in that a compound type
gets its own function which can easily be extended in the future if
necessary.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant
viralloc.h include, since that has moved from the source module into
the header.
When variables of type virNetDevRxFilterPtr and virNetDevMcastEntryPtr
are declared using VIR_AUTOPTR, the functions virNetDevRxFilterFree
and virNetDevMcastEntryFree, respectively, will be run
automatically on them when they go out of scope.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant
viralloc.h include, since that has moved from the source module into
the header.
When a variable of type virMacAddrPtr is declared using VIR_AUTOPTR,
the function virMacAddrFree will be run automatically on it when it
goes out of scope.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
This will not only help us in the future when adding more and more
VIR_AUTOPTR instances, we're also consistent in that a compound type
gets its own function which can easily be extended in the future if
necessary.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Signed-off-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
If nbits is 64 (or greater) then shifting 1ULL left is undefined.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
In virStorageBackendCreateIfaceIQN() the virRandomBits() is
called in order to use random bits to generate random name for
new interface. However, virAsprintf() is expecting 32 bits and we
are requesting only 30.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Pino Toscano <ptoscano@redhat.com>
The function is supposed to return up to 64bit long integer. In
order to do that it calls virRandomBytes() to fill the integer
with random bytes and then masks out everything but requested
bits. However, when doing that it shifts 1U and not 1ULL. So
effectively, requesting 32 random bis or more always return 0
which is not random enough.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Pino Toscano <ptoscano@redhat.com>
The jansson and json-glib libraries both export symbols with a json_
name prefix and json_object_iter_next() clashes between them.
Unfortunately json-glib is linked in by GTK, so any app using GTK and
libvirt will get a clash, resulting in SEGV. This also affects the NSS
module provided by libvirt
Instead of directly linking to jansson, use dlopen() with the RTLD_LOCAL
flag which allows us to hide the symbols from the application that loads
libvirt or the NSS module.
Some preprocessor black magic and wrapper functions are used to redirect
calls into the dlopen resolved symbols.
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This reverts commit 0f80c71822.
Turns out, our code relies on virCgroupFree(&var) setting
var = NULL.
Conflicts:
src/util/vircgroup.c: context because 94f1855f09 is not
reverted.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
This reverts commit 4da4a9fe0c.
Turns out, our code relies on virCgroupFree(&var) setting
var = NULL.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
This reverts commit dd47145aaa.
Turns out, our code relies on virCgroupFree(&var) setting
var = NULL.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
After some recent patches, clang is throwing some errors related to
unused variables. This is not happening when we use GCC with -Werror
enabled. Only clang reports this warning.
make[3]: Entering directory '/home/julio/Desktop/virt/libvirt/src'
CC util/libvirt_util_la-virscsivhost.lo
CC util/libvirt_util_la-virusb.lo
CC util/libvirt_util_la-virmdev.lo
util/virmdev.c:373:36: error: unused variable 'ret' [-Werror,-Wunused-variable]
VIR_AUTOPTR(virMediatedDevice) ret = virMediatedDeviceListSteal(list, dev);
^
1 error generated.
Makefile:11579: recipe for target 'util/libvirt_util_la-virmdev.lo' failed
make[3]: *** [util/libvirt_util_la-virmdev.lo] Error 1
make[3]: *** Waiting for unfinished jobs....
util/virscsivhost.c:112:37: error: unused variable 'tmp' [-Werror,-Wunused-variable]
VIR_AUTOPTR(virSCSIVHostDevice) tmp = virSCSIVHostDeviceListSteal(list, dev);
^
1 error generated.
Makefile:11411: recipe for target 'util/libvirt_util_la-virscsivhost.lo' failed
make[3]: *** [util/libvirt_util_la-virscsivhost.lo] Error 1
util/virusb.c:511:31: error: unused variable 'ret' [-Werror,-Wunused-variable]
VIR_AUTOPTR(virUSBDevice) ret = virUSBDeviceListSteal(list, dev);
Signed-off-by: Julio Faracco <jcfaracco@gmail.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
So after 00dc991ca1 the function is one line long and the
line is declaring a variable which is never used in fact. Replace
it with actual free() call instead of autofree.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant
viralloc.h include, since that has moved from the source module into
the header.
When a variable of type virNetDevVlanPtr is declared using
VIR_AUTOPTR, the function virNetDevVlanFree will be run
automatically on it when it goes out of scope.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant
viralloc.h include, since that has moved from the source module into
the header.
When a variable of type virSCSIVHostDevicePtr is declared using
VIR_AUTOPTR, the function virSCSIVHostDeviceFree will be run
automatically on it when it goes out of scope.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant
viralloc.h include, since that has moved from the source module into
the header.
When variables of type virSCSIDevicePtr and virUsedByInfoPtr
are declared using VIR_AUTOPTR, the functions virSCSIDeviceFree
and virSCSIDeviceUsedByInfoFree, respectively, will be run
automatically on them when they go out of scope.
This commit also adds an intermediate typedef for virUsedByInfo
type for use with the cleanup macros.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant
viralloc.h include, since that has moved from the source module into
the header.
When a variable of type virUSBDevicePtr is declared using
VIR_AUTOPTR, the function virUSBDeviceFree will be run
automatically on it when it goes out of scope.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Modify virUSBDeviceListAdd to take a double pointer to
virUSBDevicePtr as the second argument. This will enable usage
of cleanup macros upon the virUSBDevicePtr item which is to be
added to the list as it will be cleared by virInsertElementsN
upon success.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant
viralloc.h include, since that has moved from the source module into
the header.
When variables of types virPCIDevicePtr, virPCIDeviceAddressPtr
and virPCIEDeviceInfoPtr are declared using VIR_AUTOPTR, the functions
virPCIDeviceFree, virPCIDeviceAddressFree and virPCIEDeviceInfoFree,
respectively, will be run automatically on them when they go out of scope.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant
viralloc.h include, since that has moved from the source module into
the header.
When a variable of type virFirewallPtr is declared using
VIR_AUTOPTR, the function virFirewallFree will be run
automatically on it when it goes out of scope.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant
viralloc.h include, since that has moved from the source module into
the header.
When variables of type virMediatedDevicePtr and virMediatedDeviceTypePtr
are declared using VIR_AUTOPTR, the functions virMediatedDeviceFree
and virMediatedDeviceTypeFree, respectively, will be run automatically
on them when they go out of scope.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant
viralloc.h include, since that has moved from the source module into
the header.
When a variable of type virCgroupPtr is declared using
VIR_AUTOPTR, the function virCgroupFree will be run
automatically on it when it goes out of scope.
This commit also adds an intermediate typedef for virCgroup
type for use with the cleanup macros.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Modify virCgroupFree function signature to take a value of type
virCgroupPtr instead of virCgroupPtr * as the parameter.
Change the argument type in all calls to virCgroupFree function
from virCgroupPtr * to virCgroupPtr. This is a step towards
having consistent function signatures for Free helpers so that
they can be used with VIR_AUTOPTR cleanup macro.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant
viralloc.h include, since that has moved from the source module into
the header.
When variables of type virHashTablePtr are declared using
VIR_AUTOPTR, the function virHashFree will be run
automatically on it when it goes out of scope.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant
viralloc.h include, since that has moved from the source module into
the header.
When variables of type virBufferPtr and virBufferEscapePairPtr
are declared using VIR_AUTOPTR, the functions virBufferFreeAndReset
and virBufferEscapePairFree, respectively, will be run automatically
on them when they go out of scope.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Add virBufferEscapePair and virBufferEscapePairPtr typedefs, mainly in
order to enable usage of cleanup macros for this type.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant
viralloc.h include, since that has moved from the source module into
the header.
When a variable of type virErrorPtr is declared using
VIR_AUTOPTR, the function virFreeError will be run
automatically on it when it goes out of scope.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
So every caller does the same: they use virStringListAdd() to add
new item into the list and then free the old copy to replace it
with new list. It's not very memory effective, nor environmental
friendly.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Despite being standardized in POSIX.1-2008, the 'm'
sscanf() modifier is currently not available on FreeBSD.
Reimplement parsing without sscanf() to work around the
issue.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
The documentation to virCommandWait() function states that if
@exitstatus is NULL and command finished with error -1 is
returned. In other words, if @dryRunCallback is set and returns
an error (by setting its @status argument to a nonzero value) we
must propagate this error properly honouring the documentation
(and also regular run).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
After a new iSCSI interface is successfully set up, we issue a
sendtargets command. However, after 56057900dc we don't
update the host config which in turn makes login fail because
iscsiadm is unable to find any matching record for the interface.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
When scanning for targets, iSCSI might give different results
depending on the interface used. This is basically just name of
config file under /etc/iscsi/ifaces to use. The file contains
initiator IQN thus different results claim.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Firstly, we can utilize virCommandSetOutputBuffer() API which
will collect the command output for us. Secondly, sscanf()-ing
through each line is easier to understand (and more robust) than
jumping over a string with strchr().
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
This is in fact 'cleanup' label and it should be named as such.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Perform some method clean-up to follow more accepted coding standards:
* Initialize @ret to error value and prove otherwise.
* Initialize *ifacename to NULL
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Update the length @remote_params_len only if the related
@remote_params_val has also been set.
Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
We finally get rid of the strncpy()-like semantics
and implement our own, more sensible ones instead.
As a bonus, this also fixes compilation on MinGW.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Currently, the functions return a pointer to the
destination buffer on success or NULL on failure.
Not only does this kind of error handling look quite
alien in the context of libvirt, where most functions
return zero on success and a negative int on failure,
but it's also somewhat pointless because unless there's
been a failure the returned pointer will be the same
one passed in by the user, thus offering no additional
value.
Change the functions so that they return an int
instead.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
virStrncpy() allows us to copy a substring, but if we're
going to copy the entire thing it's much more convenient
to use virStrcpy() instead.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
This convenience macro was created for the simple cases
where the length of the source string and the size of the
destination buffer can be figued out with strlen() and
sizeof() respectively, so we should use it wherever
possible instead of open-coding parts of it.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
...since maxWorkers=0 is only intended for virtlockd or virlogd which
must not be multithreaded.
Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Reviewed-by: Bjoern Walk <bwalk@linux.ibm.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
To allow checking whether a storage source points to the same location
add a helper which checks the relevant fields. This will allow replacing
a similar check done by formatting the command line arguments for
qemu-like syntax.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Despite the warning that virStorageSourceCopy needs to be populated on
additions to the structure commit 687730540e neglected to implement the
copy function.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
virCopyLastError is intended to be used after last error is set.
However due to virLastErrorObject failures (very unlikely though
as thread local error is allocated on first use) we can have zero
fields in a copy as a result. In particular code field can be set
to VIR_ERR_OK.
In some places (qemu monitor, qemu agent and qemu migaration code
for example) we use copy result as a flag and this leads to bugs.
Let's set OOM-like error in copy in case of virLastErrorObject failures.
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
We no longer support building WITH_YAJL, remove the dead code
as well as the virJSONParser structures that are no longer used.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Yajl has not seen much activity upstream recently.
Switch to using Jansson >= 2.5.
All the platforms we target on https://libvirt.org/platforms.html
have a version >= 2.7 listed on the sites below:
https://repology.org/metapackage/jansson/versionshttps://build.opensuse.org/package/show/devel:libraries:c_c++/libjansson
Additionally, Ubuntu 14.04 on Travis-CI has 2.5. Set the requirement
to 2.5 since we don't use anything from newer versions.
Implement virJSONValue{From,To}String using Jansson, delete the yajl
code (and the related virJSONParser structure) and report an error
if someone explicitly specifies --with-yajl.
Also adjust the test data to account for Jansson's different whitespace
usage for empty arrays and tune up the specfile to keep 'make rpm'
working when bisecting.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Commit id 318d54e520 altered the code to check for a NULL
first parameter, but neglected to alter the prototype.
Signed-off-by: John Ferlan <jferlan@redhat.com>
When building without dlfcn.h we are providing a virModuleLoad()
stub which is supposed to report an error. However, the format
string in virReportSystemError() call there requires two strings
but we are passing just one.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
The commit 69b937f035 introduced VIR_AUTOFREE and this macro removed
VIR_FREE. This change showed that 'str' variable was not being used
inside this method. This commit removes this unused variable.
Signed-off-by: Julio Faracco <jcfaracco@gmail.com>
Reviewed-by: Roman Bogorodskiy <bogorodskiy@gmail.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant
viralloc.h include, since that has moved from the source module into the
header.
When a variable of type virBitmapPtr is declared using
VIR_AUTOPTR, the function virBitmapFree will be run
automatically on it when it goes out of scope.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant
viralloc.h include, since that has moved from the source module into the
header.
When a variable of type virJSONValuePtr is declared using
VIR_AUTOPTR, the function virJSONValueFree will be run
automatically on it when it goes out of scope.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant
viralloc.h include, since that has moved from the source module into the
header.
When a variable of type virAuthConfigPtr is declared using
VIR_AUTOPTR, the function virAuthConfigFree will be run
automatically on it when it goes out of scope.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant
viralloc.h include, since that has moved from the source module into the
header.
When a variable of type virFileWrapperFdPtr is declared using
VIR_AUTOPTR, the function virFileWrapperFdFree will be run
automatically on it when it goes out of scope.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant
viralloc.h include, since that has moved from the source module into the
header.
When a variable of type virCommandPtr is declared using VIR_AUTOPTR,
the function virCommandFree will be run automatically on it when it
goes out of scope.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope.
Alias virString to (char *) so that the new cleanup macros
can be used for a list of strings (char **).
When a list of strings (virString *) is declared using VIR_AUTOPTR,
the function virStringListFree will be run automatically on it when
it goes out of scope.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
New macros are introduced which help in adding GNU C's cleanup
attribute to variable declarations. Variables declared with these
macros will have their allocated memory freed automatically when
they go out of scope.
Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1591732
If kernel is compiled without CONFIG_BLK_DEV_DM enabled, there is
no /dev/mapper/control device and since dm_task_create() actually
does some ioctl() over it creating a task may fail.
To cope with this handle ENOENT and ENODEV gracefully.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1595184
Some domain <interfaces/> do not have a name (because they are
not TAP devices). Therefore, if
virNetDevTapInterfaceStats(net->ifname, ...) is called an instant
crash occurs. In Linux version of the function strlen() is called
over the name and in BSD version STREQ() is called.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
If there are managed reservations for a disk source, the path to
the pr-helper socket is generated automatically by libvirt when
needed and points somewhere under priv->libDir. Therefore it is
very unlikely that the path will work even on migration
destination (the libDir is derived from domain short name and its
ID).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
the libvirtd pid file is not match the os process pid number
which is smaller than before.
this would be exist if the libvirtd process coredump or the os
process was killed which the next pid number is smaller.
you can be also edit the pid file to write the longer number than
before,then restart the libvirtd service.
Signed-off-by: Bobo Du <dubo163@126.com>
This commit fixes a mount call inside virgroup.c file. The NULL value
into 'type' argument is causing a valgrind issue. See commit 794b576c
for more details. The best approach to fix it is moving NULL to "none"
filesytem.
Signed-off-by: Julio Faracco <jcfaracco@gmail.com>
This makes it easier to see why libvirt has decided it must re-attach
a tap device to its bridge.
Signed-off-by: Laine Stump <laine@laine.org>
ACKed-by: Michal Privoznik <mprivozn@redhat.com>
This function retrieves the name of the OVS bridge that the given
netdev is attached to. This separate function is necessary because OVS
set the IFLA_MASTER attribute to "ovs-system" for all netdevs that are
attached to an OVS bridge, so the standard method of retrieving the
master can't be used.
Signed-off-by: Laine Stump <laine@laine.org>
ACKed-by: Michal Privoznik <mprivozn@redhat.com>
Change from @enc to @encinfo leaving @enc for the vol->target.encryption
in the storageBackendCreateQemuImgSetOptions code path.
Signed-off-by: John Ferlan <jferlan@redhat.com>
ACKed-by: Michal Privoznik <mprivozn@redhat.com>
When the daemons are split there will need to be a way for the virt
drivers and/or network driver to create and delete bindings between
network ports and network filters. This defines a set of public APIs
that are suitable for managing this facility.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
After running libvirt daemon with valgrind tools, some errors are
appearing when you try to start a domain. One example:
==18012== Syscall param mount(type) points to unaddressable byte(s)
==18012== at 0x6FEE3CA: mount (syscall-template.S:78)
==18012== by 0x531344D: virFileMoveMount (virfile.c:3828)
==18012== by 0x27FE7675: qemuDomainBuildNamespace (qemu_domain.c:11501)
==18012== by 0x2800C44E: qemuProcessHook (qemu_process.c:2870)
==18012== by 0x52F7E1D: virExec (vircommand.c:726)
==18012== by 0x52F7E1D: virCommandRunAsync (vircommand.c:2477)
==18012== by 0x52F4EDD: virCommandRun (vircommand.c:2309)
==18012== by 0x2800A731: qemuProcessLaunch (qemu_process.c:6235)
==18012== by 0x2800D6B4: qemuProcessStart (qemu_process.c:6569)
==18012== by 0x28074876: qemuDomainObjStart (qemu_driver.c:7314)
==18012== by 0x280522EB: qemuDomainCreateWithFlags (qemu_driver.c:7367)
==18012== by 0x55484BF: virDomainCreate (libvirt-domain.c:6531)
==18012== by 0x12CDBD: remoteDispatchDomainCreate (remote_daemon_dispatch_stubs.h:4350)
==18012== by 0x12CDBD: remoteDispatchDomainCreateHelper (remote_daemon_dispatch_stubs.h:4326)
==18012== Address 0x0 is not stack'd, malloc'd or (recently) free'd
Some documentation recommends to use "none" when you don't have a
filesystem type to use. Specially, for bind and move actions.
Signed-off-by: Julio Faracco <jcfaracco@gmail.com>
USHRT_MAX is not good enough because the value is 65535 which specifies
the number of bits in bitmap. The allowed port range is 0-65535 so we
need to increase the number.
We could have USHRT_MAX + 1 but let's define the number explicitly.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1590214
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
It was used just temporarily to do a calculation, no need to keep that around.
Also use virBitmap in the code instead of reimplementing two of its existing
functions. And move the counting part next to where the value is read.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
It will be used in that file later on, plus it makes sense for all the
implementations to be in same place. Also comment each one of them nicely and
add a comment explaining why they all need to end with the same _LAST value.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
There is no need to have virResctrlGetInfo() when it must be called after
virResctrlInfoNew() anyway, otherwise it's just an unusable object. When we
wrap the logic inside the New() function we'll save some calls later as well.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Move description of the purpose of the file before any definition.
One empty line between related enum definitions.
All typedefs before all structs. This is exception from the usual, but not the
only one, we already have something similar for some other structs. This way we
can move contents between structs and reorder some parts nicely without moving
all definitions of one type before another one just so it's defined.
Define all classes in one place.
Have one initialization function for all classes in the file.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
That way we get rid of the last preprocessor conditional so the code compiles on
all platforms.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
We already have virFileLock(), but we are now using flock() in the code as
well (due to requirements for mutual exclusion between libvirt and other
programs using flock() as well), so let's have a function for that as well so we
don't need to have stubs for unsupported platforms in other files.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1529059
Commit id 0fe4aa14 added the thread specific error message
reporting (or save) to virFDStreamEvent; however, as processing
goes via virStream{Send|SendHole|Recv} via calls from
daemonStreamHandle{WriteData|Hole|Read} the last error
gets reset in the main libvirt API's thus, whatever error
may have been set as last error will be cleared prior to
the error paths using it resulting in the generic error
on the client side.
For each of the paths that check threadQuit or threadErr,
check if threadErr was set and set it agian if there isn't
a last error (e.g. some other failure) set so that the
message can be provided back to the client.
Signed-off-by: John Ferlan <jferlan@redhat.com>
ACKed-by: Michal Privoznik <mprivozn@redhat.com>
The dirent's d_type field is not portable to all platforms. So we have
to use stat() to determine the type of file for the functions that need
to be cross-platform. Fix virFileChownFiles() by calling the new
virFileIsRegular() function.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Implement virFileChownFiles() which changes file ownership of all
files in a given directory.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Replace instances where we previously called virGetLastError just to
either get the code or to check if an error exists with
virGetLastErrorCode to avoid a validity pre-check.
Signed-off-by: Ramy Elkest <ramyelkest@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Many places in the code call virGetLastError() just to check the
raised error code, or domain. However virGetLastError() can return
NULL, so the code has to check for that first. This patch therefore
introduces virGetLasError{Code,Domain} functions which always return a
valid error code or domain respectively, thus dropping the need to
perform any checks on the error object.
Signed-off-by: Ramy Elkest <ramyelkest@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Now that GnuTLS is a requirement, we can drop a lot of
conditionally built code. However, not all ifdef-s can go because
we still want libvirt_setuid to build without gnutls.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Now that virCryptoGenerateRandom() is plain wrapper over
virRandomBytes() we can drop it in favour of the latter.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
If virRandomBytes() fails there is no point calling
virRandomBits() because it uses virRandomBytes() internally
again.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Now that we have strong PRNG generator implemented in
virRandomBytes() let's use that instead of gnulib's random_r.
Problem with the latter is in way we seed it: current UNIX time
and libvirtd's PID are not that random as one might think.
Imagine two hosts booting at the same time. There's a fair chance
that those hosts spawn libvirtds at the same time and with the
same PID. This will result in both daemons generating the same
sequence of say MAC addresses [1].
1: https://www.redhat.com/archives/libvirt-users/2018-May/msg00097.html
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
While /dev/urandom is not terrible source of random data
gnutls_rnd is better. Prefer that one.
Also, since nearly every platform we build on already has gnutls
(if not all of them) this is going to be used by default.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Instead of having each caller report error move it into the
function. This way we can produce more accurate error messages
too.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
To unify our vir*Random() functions we need to make
virCryptoGenerateRandom NOT allocate return buffer. It should
just fill given buffer with random data.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
When generating random stream using gnults fails an error is
reported. However, the error is not helpful as it contains only
an integer error code (a negative number). Use gnutls_strerror()
to turn the error code into a string explaining what went wrong.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
This function allocates a buffer, fills it in with random bytes
and then returns it. However, the buffer is held in @buf
variable, therefore having @ret variable which does not hold
return value of the function is misleading.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
In libvirt when a function wants to return an error code it
should be a negative value. Returning a positive value (or zero)
means success. But virRandomBytes() does not follow this rule.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
The variable forkRet is not used after commit 25f8781
Signed-off-by: Radostin Stoyanov <rstoyanov1@gmail.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
With blockdev support we will need to introspect whether any of the
backing chain members requires PR rather just one of them. Add a helper
and reuse it in virDomainDefHasManagedPR.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Disks are client-only so we don't need to have this variable. We also
always pass false for 'isListen' to qemuBuildTLSx509BackendProps for all
disk-related code-paths so the 'tlsVerify' is ignored anyways.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
s/virQEMUBuildObjectCommandlineFromJSON/virQEMUBuildObjectCommandlineFromJSONType/
The function adds the object of a certain type. Change the name so that
we make room for the generic function.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
A file for vsock-related helper functions.
virVsockSetGuestCid to set an already-known CID,
virVsockAcquireGuestCid that will use the first available CID
https://bugzilla.redhat.com/show_bug.cgi?id=1291851
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Historically we matched log filters with strstr(), and when switching to
fnmatch in cbb0fd3cfd, it was stated that
we would continue to match substrings, with "foo" being equivalent to
"*foo*". Unfortuntely I forget to provide the code to actually make that
happen. This fixes it to prepend and append "*". We don't bother to
check if the pattern already has a leading/trailing '*', because
"**foo**" will match the same as "*foo*".
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
virCryptoHashString also needs to know the size of the returned hash.
Return it if the hash conversion succeeded so the caller does not need
to access the hashinfo array.
This should make virCryptoHashString build without gnutls.
Also fixes the missing return value for the virCryptoHashBuf stub.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Suggested-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
To allow storing status information in the XML move the validation that
the 'path' is not valid for managed PR daemon case into
qemuDomainValidateStorageSource and allow parsing of the data even in
case when managed='yes'.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Everything can be disabled by not using the parent element. There's no
need to store this explicitly. Additionally it does not add any value
since any configuration is dropped if enabled='no' is configured.
Drop the attribute and adjust the code accordingly.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
It only accepts a virObjecLockable, not a virObjecRWLockable
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Introduces the vfio-ccw model for mediated devices and prime vfio-ccw
devices such that CCW address will be generated.
Alters the qemuxml2xmltest for testing a basic mdev device using vfio-ccw.
Signed-off-by: Shalini Chellathurai Saroja <shalini@linux.vnet.ibm.com>
Reviewed-by: Bjoern Walk <bwalk@linux.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Reviewed-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Reviewed-by: Stefan Zimmermann <stzi@linux.ibm.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Add the function virHostdevIsMdevDevice() which detects whether a
hostdev is a mediated device or not. Also, replace all existing
conditionals.
Signed-off-by: Shalini Chellathurai Saroja <shalini@linux.vnet.ibm.com>
Reviewed-by: Bjoern Walk <bwalk@linux.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Ditch the use of gnulib's digest functions in favor of GnuTLS,
which might be more likely to get FIPS-certified.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
A function that keeps the hash in binary form instead of converting
it to human-readable hexadecimal form.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
The callers needing to know the size of the resulting digest
rely on _DIGEST_SIZE constants from gnulib.
Introduce VIR_CRYPTO_HASH_SIZE_ constants to remove the dependency.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Rather than specialcasing handling of the '*' character, use fnmatch()
to get normal shell wildcard syntax, as described in 'man glob(7)'.
To get an indication of the performance impact of using globs instead
of plain string matches, a test program was written. The list of all
260 log categories was extracted from the source. Then a typical log
filters setup was picked by creating an array of the strings "qemu",
"security", "util", "cgroup", "event", "object". Every filter string
was matched against every log category. Timing information showed that
using strstr() this took 8 microseconds, while fnmatch() took 114
microseconds.
IOW, fnmatch is 14 times slower than our existing strstr check. These
numbers show a worst case scenario that will never be hit, because it
is rare that every log category would have data output. The log category
matches are cached, so each category is only checked once no matter how
many log statements are emitted. IOW despite being slower, this will
be lost in the noise and have no consequence on real world logging
performance.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
There's this macro virBufferSetChildIndent which sets offset of
child buffer from given parent buffer. However, it is calling
virBufferAdjustIndent() which only adds adjustment instead of
calling virBufferSetIndent() which clears out any adjustment
previously set.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Just like in previous commit, qemu-pr-helper might want to open
/dev/mapper/control under certain circumstances. Therefore we
have to allow it in cgroups.
The change virdevmapper.c might look spurious but it isn't. After
6dd84f6850 any path that we're allowing in deivces CGroup is
subject to virDevMapperGetTargets() inspection. And libdevmapper
returns ENXIO for the path from subject.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
For command line we need two things:
1) -object pr-manager-helper,id=$alias,path=$socketPath
2) -drive file.pr-manager=$alias
In -object pr-manager-helper we tell qemu which socket to connect
to, then in -drive file-pr-manager we just reference the object
the drive in question should use.
For managed PR helper the alias is always "pr-helper0" and socket
path "${vm->priv->libDir}/pr-helper0.sock".
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Couple of reasons for that:
a) there's no monitor command to change path where the pr-helper
connects to, or
b) there's no monitor command to introduce a new pr-helper for a
disk that already exists.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
This is a definition that holds information on SCSI persistent
reservation settings. The XML part looks like this:
<reservations enabled='yes' managed='no'>
<source type='unix' path='/path/to/qemu-pr-helper.sock' mode='client'/>
</reservations>
If @managed is set to 'yes' then the <source/> is not parsed.
This design was agreed on here:
https://www.redhat.com/archives/libvir-list/2017-November/msg01005.html
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Rather than have virJSONValueArraySize return a -1 when the input
is not an array and then splat an error message, let's check for
an array before calling and then change the return to be a size_t
instead of ssize_t.
That means using the helper virJSONValueIsArray as well as using a
more generic error message such as "Malformed <something> array".
In some cases we can remove stack variables and when we cannot,
those variables should be size_t not ssize_t. Alter a few references
of if (!value) to be if (value == 0) instead as well.
Some callers can already assume an array is being worked on based
on the previous call, so there's less to do.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use virFileIsCDROM to detect whether a block device is a cdrom drive and
store it in virStorageSource. This will be necessary to correctly create
the 'host_cdrom' backend in qemu when using -blockdev.
We assume that host_cdrom makes only sense when used directly as a raw
image, but if a backing chain would be put in front of it, libvirt will
use 'host_device' in that case.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Add detection mechanism which will allow to check whether a path to a
block device is a physical CDROM drive. This will be useful once we will
need to pass it to hypervisors.
The linux implementation uses an ioctl to do the detection, while the
fallback uses a simple string prefix match.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Add a flag denoting that a virStorageSource is going to be used as a
floppy image. This will be useful in cases where the user passes in
files which shall be exposed as an image to the guest.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Few things which are currently stored the virDomainDiskDef structure are
actually relevant for the storage source as well. Add the fields with a
note that they are just mirror of the values from the disk.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Everything besides the top of the chain is readonly. Track this when
parsing the XML and detecting the chain from the disk. Also fix the
state when taking snapshots.
All other cases where the top image is changed already preserve the
readonly state from the original image.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
We want to make sure our wrapper is used instead in order
to keep the test suite working.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
The latter is impossible to mock on platforms that use the
gnulib implementation, such as FreeBSD, while the former
doesn't suffer from this limitation.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
It's a trivial wrapper around canonicalize_file_name(),
which we need in order to fully mock file access on non-Linux
platforms.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
The virStorageFileLoadBackendModule method is only used if either
fs or gluster storage is built in, which doesn't happen on mingw
leading to warning of an unused static function.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The storage file drivers are currently loaded as a side effect of
loading the storage driver. This is a bogus dependancy because the
storage file code has no interaction with the storage drivers, and
even ultimately be running in a completely separate daemon.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The virStorageFileSupportsSecurityDriver and
virStorageFileSupportsAccess currently just return a boolean
value. This is ok because they don't have any failure scenarios
but a subsequent patch is going to introduce potential failure
scenario. This changes their return type from a boolean to an
int with values -1, 0, 1.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The virStorageFileGetBackingStoreStr method has overloaded the NULL
return value to indicate both no backing available and a fatal
error dealing with it.
The caller is thus not able to correctly propagate the error
messages.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The driver.{c,h} files are primarily targetted at loading hypervisor
drivers and some helper functions in that area. It also, however,
contains a generically useful function for loading extension modules
that is called by the storage driver. Split that functionality off
into a new virmodule.{c,h} file to isolate it.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This reverts commit 8daa593b07.
There are two undesirable aspects to the impl
- Only a bare wildcard is permitted
- The wildcard match is not performed in the order listed
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
virNetDevTapGetRealDeviceName() is used on FreeBSD because interface
names (such as one sees in output of tools like ifconfig(8)) might not
match their /dev entity names, and for bhyve we need the latter.
Current implementation is not very efficient because in order to find
/dev name, it goes through all /dev/tap* entries and tries to issue
TAPGIFNAME ioctl on it. Not only this is slow, but also there's a bug in
this implementation when more than one NIC is passed to a VM: once we
find the tap interface we're looking for, we set its state to UP because
opening it for issuing ioctl sets it DOWN, even if it was UP before.
When we have more than 1 NIC for a VM, we have only last one UP because
others remain DOWN after unsuccessful attempts to match interface name.
New implementation just uses sysctl(3), so it should be faster and
won't make interfaces go down to get name.
Signed-off-by: Roman Bogorodskiy <bogorodskiy@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The virFileFindResource method merely builds up the expected fully
qualified path to the resource. It does not actually check if it exists
on disk. The loadable module callers were mistakenly thinking a NULL
indicates the file doesn't exist on disk, whereas it in fact indicates
an out of memory error.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1569678
On some large systems (with ~400GB of RAM) it is possible for
unsigned int to overflow in which case we report invalid number
of 4K pages pool size. Switch to unsigned long long.
We hit overflow in virNumaGetPages when doing:
huge_page_sum += 1024 * page_size * page_avail;
because although 'huge_page_sum' is an unsigned long long, the
page_size and page_avail are both unsigned int, so the promotion
to unsigned long long doesn't happen until the sum has been
calculated, by which time we've already overflowed.
Turning page_avail into a unsigned long long is not strictly
needed until we need ability to represent more than 2^32
4k pages, which equates to 16 TB of RAM. That's not
outside the realm of possibility, so makes sense that we
change it to unsigned long long to avoid future problems.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Now that every caller is using virDomainObjListFindByUUIDRef,
let's just remove it and keep the name as virDomainObjListFindByUUID.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Jim Fehlig <jfehlig@suse.com>
Historically we have relied on autopoint/gettextize to install a
standard po/Makefile.in.in. There is very limited scope for customizing
this and it also causes a bunch of extra stuff to be pulled into
configure.ac which potentially clashes with gnulib. Writing make rules
for po file management is no more difficult than any other rules libvirt
has, so stop using autopoint/gettextize.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Currently it is not used in backing chains and does not seem that we
will need to use it so return it back to the disk definition. Thankfully
most accesses are done via the accessors.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Our virObject code relies heavily on the fact that the first
member of the class struct is type of virObject (or some
derivation of if). Let's check for that.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
So far we are repeating the following lines over and over:
if (!(virSomeObjectClass = virClassNew(virClassForObject(),
"virSomeObject",
sizeof(virSomeObject),
virSomeObjectDispose)))
return -1;
While this works, it is impossible to do some checking. Firstly,
the class name (the 2nd argument) doesn't match the name in the
code in all cases (the 3rd argument). Secondly, the current style
is needlessly verbose. This commit turns example into following:
if (!(VIR_CLASS_NEW(virSomeObject,
virClassForObject)))
return -1;
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Whenever we declare a new object the first member of the struct
has to be virObject (or any other member of that family). Now, up
until now we did not care about the name of the struct member.
But lets unify it so that we can do some checks at compile time
later.
The unified name is 'parent'.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
This is the responsability of the caller to apply the correct lock
before using these functions. Moreover, the use of a simple boolean
was still racy: two threads may check the boolean and "lock" it
simultaneously.
Users of functions from src/util/virhash.c have to be checked for
correctness. Lookups and iteration should hold a RO
lock. Modifications should hold a RW lock.
Most important uses seem to be covered. Callers have now a greater
responsability, notably the ability to execute some operations while
iterating were reliably forbidden before are now accepted.
Signed-off-by: Vincent Bernat <vincent@bernat.im>
Since virCloseCallbacksRun was ignoring the value anyway, let's
just change it to be a void function.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Since the introduction of log tuning capabilities to virt-admin by
@06b91785, this has been a much needed missing improvement on the way to
deprecate the global 'log_level'.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
When preparing for migration, the libxl driver creates a new TCP listen
socket for the incoming migration by calling virNetSocketNewListenTCP,
passing the destination host name. virNetSocketNewListenTCP calls
virSocketAddrParse to check if the host name is a wildcard address, in
which case it avoids adding the AI_ADDRCONFIG flag to the hints passed to
getaddrinfo. If the host name is not an IP address, virSocketAddrParse
reports an error
error : virSocketAddrParseInternal:121 : Cannot parse socket address
'myhost.example.com': Name or service not known
But virNetSocketNewListenTCP succeeds regardless and the overall migration
operation succeeds.
Introduce virSocketAddrParseAny and use it when simply testing if a host
name/addr is parsable.
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
This helper fetches dependencies for given device mapper target.
At the same time, we need to provide a dummy log function because
by default libdevmapper prints out error messages to stderr which
we need to suppress.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Sometimes it's desired to get a JSON number as string. Add a helper.
This will help in cases where we'd want to convert the internal type from
string to something else.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
It was not possible to determine whether virJSONValueObjectAddVArgs and
the functions using it would consume a virJSONValue or not when used
with the 'a' or 'A' modifier depending on when the loop failed.
Fix this by passing in a pointer to the pointer so that it can be
cleared once it's successfully consumed and the callers don't have to
second-guess leaving a chance of leaking or double freeing the value
depending on the ordering.
Fix all callers to pass a double pointer too.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
The set of arguments was changed a long time ago (040d996342
which dates back to July 2013) but the corresponding
documentation was not updated.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Laine Stump <laine@laine.org>
The flags passed to virCommandPassFD() are unnamed and
documentation to this function doesn't list them either.
Give them name and mention it in documentation to functions
using them.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Laine Stump <laine@laine.org>
What one currently gets is:
failed to read '/sys/bus/mdev/devices/<UUID>/mdev_type/device_api': No
such file or directory
This indicates that something is missing within the device's sysfs tree
which likely might be not be the case here because the device simply
doesn't exist yet. So, when creating our internal mdev obj, let's check
whether the device exists first prior to trying to verify the
user-provided model within domain XML.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
==16451== 32,768 bytes in 2 blocks are definitely lost in loss record 1,007 of 1,013
==16451== at 0x4C2AF0F: malloc (vg_replace_malloc.c:299)
==16451== by 0x7CADB40: nl_recv (in /usr/lib64/libnl-3.so.200.23.0)
==16451== by 0x532DFAC: virNetlinkDumpCommand (virnetlink.c:363)
==16451== by 0x53236AE: virNetDevIPCheckIPv6Forwarding (virnetdevip.c:641)
==16451== by 0xE3E4A1A: networkStartNetworkVirtual (bridge_driver.c:2490)
==16451== by 0xE3E55F5: networkStartNetwork (bridge_driver.c:2832)
==16451== by 0xE3DFFE5: networkAutostartConfig (bridge_driver.c:531)
==16451== by 0x53F47E0: virNetworkObjListForEachHelper (virnetworkobj.c:1412)
==16451== by 0x52FE69F: virHashForEach (virhash.c:606)
==16451== by 0x53F4857: virNetworkObjListForEach (virnetworkobj.c:1439)
==16451== by 0xE3E0BF4: networkStateAutoStart (bridge_driver.c:808)
==16451== by 0x55689CE: virStateInitialize (libvirt.c:758)
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
We have to use VIR_WARNINGS_NO_CAST_ALIGN to avoid clang warning
about increased required alignment caused by some netlink macros.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
And at the same time, do that from .c rather than .h file.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Chen Hanxiao<chenhanxiao@gmail.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
introduce helper to parse RTM_GETNEIGH query message and
store it in struct virArpTable.
Signed-off-by: Chen Hanxiao <chenhanxiao@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Some fields reported by dmidecode have plenty of useless spaces
(in fact some have nothing but spaces). To deal with this we have
introduced virSkipSpacesBackwards() and use it in
virSysinfoParseX86Processor() and virSysinfoParseX86Memory().
However, other functions (e.g. virSysinfoParseX86Chassis()) don't
use it at all and thus we are reporting nonsense:
<sysinfo type='smbios'>
<chassis>
<entry name='manufacturer'>FUJITSU</entry>
<entry name='version'> </entry>
<entry name='serial'> </entry>
<entry name='asset'> </entry>
<entry name='sku'>Default string</entry>
</chassis>
</sysinfo>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Policy-Kit has been replaced by polkit (referred to, respectively,
as POLKIT0 and POLKIT1 in our Makefiles).
The last build fix with old Policy-Kit was in May 2013:
commit <442eb2ba> and build with -Wunused-label was broken
since April 2016: commit <8437130>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Probably due to copy-paste error we're storing asset tag into
def->sku which we even use in the next step to store SKU number
and thus the asset tag leaks.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
This time around it's not enough to just pick the latest commit,
because with aed87bb2aa6ed83b49574eb982e3bdd4c36acf17 keycodemapdb
renamed the 'rfb' keycode to 'qnum' and we need to accept the new
name while maintaining backwards compatibility.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
The function used the 'cleanup' label only in error cases. This patch
makes the code pass the cleanup label in every case and removes few
unnecessary VIR_FREEs.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
When commit 3545cbef moved the sysfs attribute reading logic from
_udev.c module to virmdev.c, it had to replace our udev read wrappers
with the ones available from virfile.c. The problem is that the original
logic worked correctly with udev read wrappers which don't return an
error code for a missing attribute, virfile.c readers however - not so
much. Therefore add another parameter to the macro, so we can again
accept the fact that optional attributes may be missing.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
This flag is only used for tests. Let's instead overload bind syscall
in mocks where it is not done yet.
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Range check in virPortAllocatorSetUsed is not useful anymore
when we manage ports for entire unsigned short range values.
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Range check in virPortAllocatorSetUsed is not useful anymore
when we manage ports for entire unsigned short range values.
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Host tcp4/tcp6 ports is a global resource thus we need to make
port accounting also global or we have issues described in [1] when
port allocator ranges of different instances are overlapped (which
is by default for qemu for example).
Let's have only one global port allocator object that take care
of the entire ports range (0 - 65535) and introduce port range object
for clients to specify desired auto allocation band.
[1] https://www.redhat.com/archives/libvir-list/2017-December/msg00600.html
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Ensure all enum cases are listed in switch statements.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
To ensure we have standardized error messages when reporting problems
with enum values being out of a range, add virReportEnumRangeError().
virReportEnumRangeError(virDomainState, 34);
results in a message
"internal error: Unexpected enum value 34 for virDomainState"
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This function returns nothing but zero. Therefore it makes no
sense to have it returning an integer.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Commit 7e62c4cd26 (first appearing in libvirt-3.9.0 as a resolution
to rhbz #1343919) added a "generated" attribute to virMacAddr that was
set whenever a mac address was auto-generated by libvirt. This
knowledge was used in a single place - when trying to match a NetDef
from the Domain to Delete with user-provided XML. Since the XML parser
always auto-generates a MAC address for NetDefs when none is provided,
it was previously impossible to make a search where the MAC address
isn't significant, but the addition of the "generated" attribute made
it possible for the search function to ignore auto-generated MACs.
This implementation had a problem though - it was adding a field to a
"low level" struct - virMacAddr - which is used in other places with
the assumption that it contains exactly a 6 byte MAC address and
nothing else. In particular, virNWFilterSnoopEthHdr uses virMacAddr as
part of the definition of an ethernet packet header, whose layout must
of course match an actual ethernet packet. Adding the extra bools into
virNWFilterSnoopEthHdr caused the nwfilter driver's "IP discovery via
DHCP packet snooping" functionality to mysteriously stop working.
In order to fix that behavior, and prevent potential future similar
odd behavior, this patch moves the "generated" member out of
virMacAddr (so that it is again really is just a MAC address) into
virDomainNetDef, and sets it only when virDomainNetGenerateMAC() is
called from virDomainNetDefParseXML() (which is the only time we care
about it).
Resolves: https://bugzilla.redhat.com/1529338
(It should also be applied to any maintenance branch that applies
commit 7e62c4cd26 and friends to resolve
https://bugzilla.redhat.com/1343919)
Signed-off-by: Laine Stump <laine@laine.org>
This type of information defines attributes of a system
chassis, such as SMBIOS Chassis Asset Tag.
access inside VM (for example)
Linux: /sys/class/dmi/id/chassis_asset_tag.
Windows: (Get-WmiObject Win32_SystemEnclosure).SMBIOSAssetTag
wirhin Windows PowerShell.
As an example, add the following to the guest XML
<chassis>
<entry name='manufacturer'>Dell Inc.</entry>
<entry name='version'>2.12</entry>
<entry name='serial'>65X0XF2</entry>
<entry name='asset'>40000101</entry>
<entry name='sku'>Type3Sku1</entry>
</chassis>
Signed-off-by: Zhuang Yanying <ann.zhuangyanying@huawei.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
We can't really detect all the authentication data in a sane manner for
disk backing chains. Since the old RBD parser parses it in some cases as
the argv->XML convertor requires it, we can't just drop it.
Instead clear any detected authentication data in the code paths related
to disk backing chain lookup and fix the tests to cope with the change.
https://bugzilla.redhat.com/show_bug.cgi?id=1544659
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
The documentation for the JSON/qapi type 'UnixSocketAddress' states that
the unix socket path field is named 'path'. Unfortunately qemu uses
'socket' in case of the gluster driver (despite documented otherwise).
Add logic which will format the correct fields while keeping support of
the old spelling.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1544325
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
The fix for CVE-2018-6764 introduced a potential deadlock scenario
that gets triggered by the NSS module when virGetHostname() calls
getaddrinfo to resolve the hostname:
#0 0x00007f6e714b57e7 in futex_wait
#1 futex_wait_simple
#2 __pthread_once_slow
#3 0x00007f6e71d16e7d in virOnce
#4 0x00007f6e71d0997c in virLogInitialize
#5 0x00007f6e71d0a09a in virLogVMessage
#6 0x00007f6e71d09ffd in virLogMessage
#7 0x00007f6e71d0db22 in virObjectNew
#8 0x00007f6e71d0dbf1 in virObjectLockableNew
#9 0x00007f6e71d0d3e5 in virMacMapNew
#10 0x00007f6e71cdc50a in findLease
#11 0x00007f6e71cdcc56 in _nss_libvirt_gethostbyname4_r
#12 0x00007f6e724631fc in gaih_inet
#13 0x00007f6e72464697 in __GI_getaddrinfo
#14 0x00007f6e71d19e81 in virGetHostnameImpl
#15 0x00007f6e71d1a057 in virGetHostnameQuiet
#16 0x00007f6e71d09936 in virLogOnceInit
#17 0x00007f6e71d09952 in virLogOnce
#18 0x00007f6e714b5829 in __pthread_once_slow
#19 0x00007f6e71d16e7d in virOnce
#20 0x00007f6e71d0997c in virLogInitialize
#21 0x00007f6e71d0a09a in virLogVMessage
#22 0x00007f6e71d09ffd in virLogMessage
#23 0x00007f6e71d0db22 in virObjectNew
#24 0x00007f6e71d0dbf1 in virObjectLockableNew
#25 0x00007f6e71d0d3e5 in virMacMapNew
#26 0x00007f6e71cdc50a in findLease
#27 0x00007f6e71cdc839 in _nss_libvirt_gethostbyname3_r
#28 0x00007f6e71cdc724 in _nss_libvirt_gethostbyname2_r
#29 0x00007f6e7248f72f in __gethostbyname2_r
#30 0x00007f6e7248f494 in gethostbyname2
#31 0x000056348c30c36d in hosts_keys
#32 0x000056348c30b7d2 in main
Fortunately the extra stuff virGetHostname does is totally irrelevant to
the needs of the logging code, so we can just inline a call to the
native hostname() syscall directly.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Some of function comments don't have the right named parameters
and others are not consistent with the description alignment.
This patch fixes this.
Signed-off-by: Chen Hanxiao <chenhanxiao@gmail.com>
The QEMU driver loadable module needs to be able to resolve all ELF
symbols it references against libvirt.so. Some of its symbols can only
be resolved against the storage_driver.so loadable module which creates
a hard dependancy between them. By moving the storage file backend
framework into the util directory, this gets included directly in the
libvirt.so library. The actual backend implementations are still done as
loadable modules, so this doesn't re-add deps on gluster libraries.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
At later point it might not be possible or even safe to use getaddrinfo(). It
can in turn result in a load of NSS module.
Notably, on a LXC container startup we may find ourselves with the guest
filesystem already having replaced the host one. Loading a NSS module
from the guest tree would allow a malicous guest to escape the
confinement of its container environment because libvirt will not yet
have locked it down.
Note the fact that the unused portion of the last element in the bitmap
needs to be cleared, since we use functions which process only full-size
elements and don't really deal with individual bits.
The function only reduces the size of the bitmap thus we can use the
appropriate shrinking function which also does not have any return
value.
Since virBitmapShrink now does not return any value callers need to be
fixed as well.
The virBitmap code uses VIR_RESIZE_N to do quadratic scaling, which
means that along with the number of requested map elements we also need
to keep the number of actually allocated elements for the scaling
algorithm to work properly.
The shrinking code did not fix 'map_alloc' thus virResizeN might
actually not expand the bitmap properly after called on a previously
shrunk bitmap.
'max_bit' is misleading as the value is set to the first invalid bit
as it's used as the number of bits in the bitmap. Rename it to a more
descriptive name.
Just in case someone re-mounted /sys/fs/resctrl with different mount
options (cdp), add a check here.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1540780
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Some of the other functions depend on the fact that unused bits and longs are
always zero and it's less error-prone to clear it than fix the other functions.
It's enough to zero out one piece of the map since we're calling realloc() to
get rid of the rest (and updating map_len).
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1540817
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Add new error code to be able to allow consumers (such as Nova) to be
able to key of a specific error code rather than needing to search the
error message."
Signed-off-by: Chen Hanxiao <chenhanxiao@gmail.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Some platforms/toolchains will complain about casting
sockaddr_storage to sockaddr_un because it breaks strict
aliasing rule
../../src/util/virutil.c: In function 'virGetUNIXSocketPath':
../../src/util/virutil.c:2005: error: dereferencing pointer 'un' does break strict-aliasing rules [-Wstrict-aliasing]
Change the code to use a union, in the same way that the
virsocketaddr.h header does.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
When starting an LXC container, the /dev entries are created
under temp root (/var/run/libvirt/lxc/$name.dev), relabelled and
then the root is pivoted. However, when it comes to USB devices
which keep path to the device in the structure we need a way to
override the default /dev/usb/... path because we want to work
with the one under temp root. That's what @vroot argument is for
in virUSBDeviceNew. However, what is being passed there is:
vroot = /var/run/libvirt/lxc/lxc_0.dev/bus/usb
Therefore, constructed path is wrong:
dev->path = //var/run/libvirt/lxc/lxc_0.dev/bus/usb//dev/bus/usb/002/002
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
When receiving multiple socket FDs from systemd, it is critical to know
what socket address each corresponds to so we can setup the right
protocols on each.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Due to confusing naming the pointer to the mask got copied which must not
happen, so use UpdateMask instead of SetMask. That also means we can get
completely rid of SetMask.
Also don't clear the free bits since it is not used again (leftover from
previous versions).
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Introduce virResctrlAllocCopyMasks() and use that to initially copy the default
group schemata to the allocation before reserving any parts of the cache. The
reason for this is that when new group is created the schemata will have unknown
data in it. If there was previously group with the same CLoS ID, it will have
the previous valies, if not it will have all bits set. And we need to set all
unspecified (in the XML) allocations to the same one as the default group.
Some non-Linux functions now need to be made public due to this change.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1289368
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
While the QEMU QAPI schema describes 'lun' as a number, the code dealing
with JSON strings does not strictly adhere to this schema and thus
formats the number back as a string. Use the new helper to retrieve both
possibilities.
Note that the formatting code is okay and qemu will accept it as an int.
Tweak also one of the test strings to verify that both formats work
with libvirt.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1540290
The helper is useful in cases when the JSON we have to parse may contain
one of the two due to historical reasons and the number value itself
would be stored as a string.
We are skipping non-directories under /sys/fs/resctrl/(info/) since those are not
interesting for us. However in tests it can sometimes happen that ent->d_type
is 0 instead of 4 (DT_DIR) for directories.
I've seen it fail on two machines. Different machines, different systems, I
cannot reproduce it even using the same setup. So one of the ways how to work
around this is call stat() on it. The other one is not checking if it is a
directory since we'll find out eventually when we want to read some files
underneath it.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
This wil be used in the future, but it makes sense for now as well. It makes
sure there is no mask leftover that would leak.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Pointed out during review on one or two places, but it actually appears in lot
more places. So let's be consistent.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
When working on the CAT series one of the changes was that the pointer got
allocated in another part of the code, even when resctrl was not available on
the host system. However this one particular place neglected that so it needs
to be fixed in order to get the proper error message when requesting
<cachetune/> on HW with no support for it.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Commits f83c7c88 and 6eb1f2b9 broke the build on FreeBSD and OSX because
of symbols being undefined for those platforms.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
This is a replacement for the existing udevPCIGetMdevTypesCap which is
static to the udev backend. This simple helper constructs the sysfs path
from the device's base path for each mdev type and queries the
corresponding attributes of that type.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
This should serve as a replacement for the existing udevFillMdevType
which is responsible for fetching the device type's attributes from the
sysfs interface. The problem with the existing solution is that it's
tied to the udev backend.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
This is later going to replace the existing virNodeDevCapMdevType, since:
1) it's going to couple related stuff in a single module
2) util is supposed to contain helpers that are widely accessible across
the whole repository.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
With this commit we finally have a way to read and manipulate basic resctrl
settings. Locking is done only on exposed functions that read/write from/to
resctrlfs. Not in functions that are exposed in virresctrlpriv.h as those are
only supposed to be used from tests.
More information about how resctrl works:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/x86/intel_rdt_ui.txt
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
This will make the current functions obsolete and it will provide more
information to the virresctrl module so that it can be used later.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
The OEM strings table in SMBIOS allows the vendor to pass arbitrary
strings into the guest OS. This can be used as a way to pass data to an
application like cloud-init, or potentially as an alternative to the
kernel command line for OS installers where you can't modify the install
ISO image to change the kernel args.
As an example, consider if cloud-init and anaconda supported OEM strings
you could use something like
<oemStrings>
<entry>cloud-init:ds=nocloud-net;s=http://10.10.0.1:8000/</entry>
<entry>anaconda:method=http://dl.fedoraproject.org/pub/fedora/linux/releases/25/x86_64/os</entry>
</oemStrings>
use of a application specific prefix as illustrated above is
recommended, but not mandated, so that an app can reliably identify
which of the many OEM strings are targetted at it.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Commit 8708ca01c added virNetDevSwitchdevFeature() to check if a network
device has Switchdev capabilities. virNetDevSwitchdevFeature() attempts
to retrieve the PCI device associated with the network device, ignoring
non-PCI devices. It does so via the following call chain
virNetDevSwitchdevFeature()->virNetDevGetPCIDevice()->
virPCIGetDeviceAddressFromSysfsLink()
For non-PCI network devices (qeth, Xen vif, etc),
virPCIGetDeviceAddressFromSysfsLink() will report an error when
virPCIDeviceAddressParse() fails. virPCIDeviceAddressParse() also
logs an error. After commit 8708ca01c there are now two errors reported
for each non-PCI network device even though the errors are harmless.
To avoid the errors, introduce virNetDevIsPCIDevice() and use it in
virNetDevGetPCIDevice() before attempting to retrieve the associated
PCI device. virNetDevIsPCIDevice() uses the 'subsystem' property of the
device to determine if it is PCI. See the sysfs rules in kernel
documentation for more details
https://www.kernel.org/doc/html/latest/admin-guide/sysfs-rules.html
Let's also parse the available processor frequency information on S390
so that it can be utilized by virsh sysinfo:
# virsh sysinfo
<sysinfo type='smbios'>
...
<processor>
<entry name='family'>2964</entry>
<entry name='manufacturer'>IBM/S390</entry>
<entry name='version'>00</entry>
<entry name='max_speed'>5000</entry>
<entry name='serial_number'>145F07</entry>
</processor>
...
</sysinfo>
Reviewed-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Signed-off-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
Since kernel version 4.7, processor frequency information is available
on S390. Let's adjust the parser so this information shows up for virsh
nodeinfo:
# virsh nodeinfo
CPU model: s390x
CPU(s): 8
CPU frequency: 5000 MHz
CPU socket(s): 1
Core(s) per socket: 8
Thread(s) per core: 1
NUMA cell(s): 1
Memory size: 16273908 KiB
Reviewed-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Signed-off-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
Some ARM platforms, such as the original Raspberry Pi, report the
CPU frequency in the BogoMIPS field of /proc/cpuinfo, so libvirt
parsed that field and returned it through its API.
However, not only many more boards don't report any value there,
but several - including ARMv8-based server hardware, and even the
more recent Raspberry Pi 3 - use this field as originally intended:
to report the BogoMIPS value instead of the CPU frequency.
Since we have no way of detecting how the field is being used,
it's better to report no information at all rather than something
ludicrous like "your shiny 96-core aarch64 virtualization host's
CPUs are running at a whopping 100 MHz".
Partially-resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1206353
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Make the parser both more strict, by not ignoring errors reported
by virStrToLong_ui(), and more permissive, by not failing due to
unrelated fields which just happen to have a know prefix and
accepting any amount of whitespace before the numeric value.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
Instead of a generic "your architecture", print the actual
architecture name.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
All different architectures use the same copy-pasted code to parse
processor frequency information from /proc/cpuinfo. Let's extract that
code into a function to avoid repetition.
We now also tolerate if the parsing of /proc/cpuinfo is not successful
and just report a warning instead of bailing out and abandoning the rest
of the CPU information.
Reviewed-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
This new API reads host's CPU microcode version from /proc/cpuinfo.
Unfortunately, there is no other way of reading microcode version which
would be usable from both system and session daemon.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
There are a few more description-related issues that commit @9026d115
forgot to address.
Signed-off-by: Chen Hanxiao <chenhanxiao@gmail.com>
Signed-off-by: Erik Skultety <eskultet@redhat.com>
There's no argument named @result, use @matches instead.
Signed-off-by: Chen Hanxiao <chenhanxiao@gmail.com>
Signed-off-by: Erik Skultety <eskultet@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1523564
If the vhost-scsi device file cannot be found, the generic error
"error: An error occurred, but the cause is unknown"
is returned. Let's add a real error message to make it clear
why the failure occurred.
