Commit Graph

1107 Commits

Author SHA1 Message Date
Michal Privoznik
507032d98d virDomainNetGetActualType: Return type is virDomainNetType
This function for some weird reason returns integer instead of
virDomainNetType type. It is important to return the correct type
so that we know what values we can expect.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-10-14 10:15:51 +08:00
Michal Privoznik
b7d2d4af2b src: Treat PID as signed
This initially started as a fix of some debug printing in
virCgroupDetect. However it turned out that other places suffer
from the similar problem. While dealing with pids, esp. in cases
where we cannot use pid_t for ABI stability reasons, we often
chose an unsigned integer type. This makes no sense as pid_t is
signed.
Also, new syntax-check rule is introduced so we won't repeat this
mistake.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-10-13 17:58:56 +08:00
Martin Kletzander
1827f2ac5d Change virDomainEventState to virObjectLockable
This way we get reference counting and we can get rid of locking
function.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2016-10-12 12:54:47 +02:00
Michal Privoznik
78ab5dcea0 conf: Extend virDomainDeviceDefPostParse for parseOpaque
Just like virDomainDefPostParseCallback has gained new
parseOpaque argument, we need to follow the logic with
virDomainDeviceDefPostParse.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-09-26 16:50:12 +02:00
Michal Privoznik
c41b989112 virDomainDefParse{File,String}: Introduce @parseOpaque argument
We want to pass the proper opaque pointer instead of NULL to
virDomainDefParse and subsequently virDomainDefParseNode too.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-09-26 16:50:12 +02:00
Michal Privoznik
940d91c55b virDomainDefPostParse: Introduce @parseOpaque argument
Some callers might want to pass yet another pointer to opaque
data to post parse callbacks. The driver generic one is not
enough because two threads executing post parse callback might
want to see different data (e.g. domain object pointer that
domain def belongs to).

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-09-26 16:50:12 +02:00
Jiri Denemark
97a87333a0 Add helper for removing transient definition
The code for replacing domain's transient definition with the persistent
one is repeated in several places and we'll need to add one more. Let's
make a nice helper for it.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-09-08 22:25:22 +02:00
Michal Privoznik
f3f15cc240 Make sure sys/types.h is included after sys/sysmacros.h
In the latest glibc, major() and minor() functions are marked as
deprecated (glibc commit dbab6577):

  CC       util/libvirt_util_la-vircgroup.lo
util/vircgroup.c: In function 'virCgroupGetBlockDevString':
util/vircgroup.c:768:5: error: '__major_from_sys_types' is deprecated:
  In the GNU C Library, `major' is defined by <sys/sysmacros.h>.
  For historical compatibility, it is currently defined by
  <sys/types.h> as well, but we plan to remove this soon.
  To use `major', include <sys/sysmacros.h> directly.
  If you did not intend to use a system-defined macro `major',
  you should #undef it after including <sys/types.h>.
  [-Werror=deprecated-declarations]
     if (virAsprintf(&ret, "%d:%d ", major(sb.st_rdev), minor(sb.st_rdev)) < 0)
     ^~
In file included from /usr/include/features.h:397:0,
                 from /usr/include/bits/libc-header-start.h:33,
                 from /usr/include/stdio.h:28,
                 from ../gnulib/lib/stdio.h:43,
                 from util/vircgroup.c:26:
/usr/include/sys/sysmacros.h:87:1: note: declared here
 __SYSMACROS_DEFINE_MAJOR (__SYSMACROS_FST_IMPL_TEMPL)
 ^

Moreover, in the glibc commit, there's suggestion to keep
ordering of including of header files as implemented here.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-09-06 17:49:36 +02:00
Andrea Bolognani
3edcf83433 util: Make virStringArrayHasString() const-correct
The first argument should be const char ** instead of
char **, because this is a search function and as such it
doesn't, and shouldn't, alter the haystack in any way.

This change means we no longer have to cast arrays of
immutable strings to arrays of mutable strings; we still
have to do the opposite, though, but that's reasonable.
2016-08-16 19:32:58 +02:00
Daniel P. Berrange
57487085dc lxc: don't try to reference NULL when mounting filesystems
<filesystem type='ram' accessmode='passthrough'>
    <source usage='524288' units='KiB'/>
    <target dir='/dev/shm'/>
  </filesystem>

would lead to lxcContainerMountAllFS calling STRPREFIX
on a NLL pointer because it failed to check if fs->src->path
was non-NULL. This is a regression caused by

  commit da665fbd48
  Author: Olga Krishtal <okrishtal@virtuozzo.com>
  Date:   Thu Jul 14 16:52:38 2016 +0300

    filesystem: adds possibility to use storage pool as fs source

    Signed-off-by: Olga Krishtal <okrishtal@virtuozzo.com>

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2016-08-16 09:36:35 +01:00
Daniel P. Berrange
81aa4385d7 lxc: don't try to resolve a NULL path for filesystems
<filesystem type='ram' accessmode='passthrough'>
    <source usage='524288' units='KiB'/>
    <target dir='/dev/shm'/>
  </filesystem>

would lead to lxcContainerResolveSymlinks calling
access(NULL) because it failed to check if fs->src->path
was non-NULL. This is a regression caused by

  commit da665fbd48
  Author: Olga Krishtal <okrishtal@virtuozzo.com>
  Date:   Thu Jul 14 16:52:38 2016 +0300

    filesystem: adds possibility to use storage pool as fs source

    Signed-off-by: Olga Krishtal <okrishtal@virtuozzo.com>

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2016-08-16 09:36:35 +01:00
Michal Privoznik
5f5a5a42e5 lxcDomainCreateXMLWithFiles: Avoid crash
https://bugzilla.redhat.com/show_bug.cgi?id=1363773

Imagine that you're creating a transient domain, but for some reason,
starting it fails. That is virLXCProcessStart() returns an error. With
current code, in the error handling code the domain object is removed
from the domain object list, @vm is set to NULL and controls jump to
enjob label where virLXCDomainObjEndJob() is called which dereference vm
leading to instant crash.

The fix is to end the job in the error handling code and only after that
remove the domain from the list and jump onto cleanup label instead of
endjob.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-08-05 15:50:19 +02:00
Martin Kletzander
e4200bbb9d lxc: Don't crash by forgetting to ref transient domains
So commit 306b3a8504 tried mimicking behaviour of commit 540c339a25, but
added a virObjectRef(vm) only after virDomainObjListAdd() in
lxcDomainDefineXMLFlags() and not in lxcDomainCreateXMLWithFiles().
That way undefining a domain that was started with different XML than
defined will leave the domain object in a state with not enough
references to then remove it.  Hence any lxcDomainDestroyFlags() called
afterwards crashes the daemon.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1351057

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2016-07-24 09:08:20 +02:00
Katerina Koukiou
f96cd890a8 lxc: make container's init process session leader
This patch forces container's init process, to become a session leader,
that is its session ID is made the same as its process ID.
That might seem unnecessary in general, but if we want to checkpoint a
container with CRIU, which is needed for container migration,
we must ensure that the SID of each process inside the container points
to a process that lives in the same PID namespace as the container.
Therefore, we force that the session leader is the init.

Signed-off-by: Katerina Koukiou <k.koukiou@gmail.com>
2016-07-22 09:40:10 +01:00
Cédric Bosdonnat
8ee6a99e7c lxc: errors after the handshake won't be reported
Any error happening after the hand shake in the lxc controller
will not result in a failure as errors are checked during the handshake.
Move the handshake after the last possible error.
2016-07-19 16:23:25 +02:00
Erik Skultety
28e191a96c fs: Fix '<' comparison of value produced by logical not '!'
Commit da665fbd introduced the following condition to virLXCProcessEnsureRootFS
and openvzReadFSConf:

if (!(<some_var> = virDomainFSDefNew()) < 0)

which broke the build on fedora with GCC 5.3.1: "logical not is only applied to
the left hand side of comparison".

Signed-off-by: Erik Skultety <eskultet@redhat.com>
2016-07-19 09:38:40 +02:00
Olga Krishtal
da665fbd48 filesystem: adds possibility to use storage pool as fs source
Signed-off-by: Olga Krishtal <okrishtal@virtuozzo.com>
2016-07-18 23:39:56 +03:00
Daniel P. Berrange
51eeb756d2 lxc: convert to typesafe virConf accessors
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2016-07-12 09:58:21 +01:00
Peter Krempa
5fe0b6b0a7 conf: Add private data for virDomainVcpuDef
Allow to store driver specific data on a per-vcpu basis.

Move of the virDomainDef*Vcpus* functions was necessary as
virDomainXMLOptionPtr was declared below this block and I didn't want to
split the function headers.
2016-07-11 10:44:04 +02:00
Peter Krempa
ef88140725 conf: Don't use virDomainLiveConfigHelperMethod in virDomainObjGetMetadata
Few arguments of the function are not necessary any more which leads to
some cleanups. The 'uri' argument had a stray ATTRIBUTE_UNUSED.
2016-07-07 08:57:05 +02:00
Peter Krempa
fcc3ccf3cd lxc: Synchronize implementation of qemuDomainSetMemoryParameters
The impls are identical and I don't have a reasonable idea where to
extract it.

This also kills yet another use of virDomainLiveConfigHelperMethod.
2016-07-07 08:57:05 +02:00
Laine Stump
187920273c lxc: support setting host-side IP addresses/routes
(This patch had been pushed earlier in
commit cd5c9f21de, but was reverted in
commit 1549f16832 because it had been
accidentally pushed during the freeze for release 2.0.0)
2016-07-01 21:13:31 -04:00
Laine Stump
95309424ba util: new function virNetDevIPInfoAddToDev
This patch takes the code out of
lxcContainerRenameAndEnableInterfaces() that adds all IP addresses and
IP routes to the interface, and puts it into a utility function
virNetDevIPInfoAddToDev() in virnetdevip.c so that it can be used by
anyone.

One small change in functionality -
lxcContainerRenameAndEnableInterfaces() previously would add all IP
addresses to the interface while it was still offline, then set the
interface online, and then add the routes. Because I don't want the
utility function to set the interface online, I've moved this up so
the interface is first set online, then IP addresses and routes are
added. This is the same order that the network service from
initscripts (in ifup-ether) does it, so it shouldn't pose any problem
(and hasn't, in the tests that I've run).

(This patch had been pushed earlier in commit
f1e0d0da11, but was reverted in commit
05eab47559 because it had been
accidentally pushed during the freeze for release 2.0.0)
2016-07-01 21:13:30 -04:00
Ján Tomko
05eab47559 Revert "util: new function virNetDevIPInfoAddToDev"
This reverts commit f1e0d0da11.

This feature was accidentally pushed in the feature freeze.
2016-06-27 12:54:55 +02:00
Ján Tomko
1549f16832 Revert "lxc: support setting host-side IP addresses/routes"
This reverts commit cd5c9f21de.

This feature was accidentally pushed in the feature freeze.
2016-06-27 12:54:55 +02:00
Laine Stump
cd5c9f21de lxc: support setting host-side IP addresses/routes 2016-06-26 19:33:10 -04:00
Laine Stump
f1e0d0da11 util: new function virNetDevIPInfoAddToDev
This patch takes the code out of
lxcContainerRenameAndEnableInterfaces() that adds all IP addresses and
IP routes to the interface, and puts it into a utility function
virNetDevIPInfoAddToDev() in virnetdevip.c so that it can be used by
anyone.

One small change in functionality -
lxcContainerRenameAndEnableInterfaces() previously would add all IP
addresses to the interface while it was still offline, then set the
interface online, and then add the routes. Because I don't want the
utility function to set the interface online, I've moved this up so
the interface is first set online, then IP addresses and routes are
added. This is the same order that the network service from
initscripts (in ifup-ether) does it, so it shouldn't pose any problem
(and hasn't, in the tests that I've run).
2016-06-26 19:33:10 -04:00
Laine Stump
4ff9ec7dae lxc: move debug/error log when adding IP addresses to virNetDevIPAddrAdd
It makes more sense to have the logging at the lower level so other
callers can share the goodness.

While removing so much stuff from / touching so many lines in
lxcContainerRenameAndEnableInterfaces() (which used to have this
debug/error logging), label names were changed and it was updated to
use the now-more-common method of initializing ret to -1 (failure),
then setting to 0 right before the cleanup label.
2016-06-26 19:33:10 -04:00
Laine Stump
fbc1843d2e conf: use virNetDevIPInfo for guest-side <interface> config
All the same information was already there, just in slightly different
places in the virDomainNetDef.
2016-06-26 19:33:09 -04:00
Laine Stump
69e04044dd conf: use virNetDevIPInfo in virDomainHostdevCaps
a.k.a. <hostdev mode='capabilities' type='net'>.

This replaces the existing nips, ips, nroutes, and routes with a
single virNetDevIPInfo, and simplifies the code by calling that
object's parse/format/clear functions instead of open coding.
2016-06-26 19:33:09 -04:00
Laine Stump
fa18e814ba util: move IP route & address object-related functions to virnetdevip.c
These functions all need to be called from a utility function that
must be located in the util directory, so we move them all into
util/virnetdevip.[ch] now that it exists.

Function and struct names were appropriately changed for the new
location, but all code is unchanged aside from motion and renaming.
2016-06-26 19:33:09 -04:00
Laine Stump
cf0568b0af util: new files virnetdevip.[ch] for IP-related netdev functions
This patch splits virnetdev.[ch] into multiple files, with the new
virnetdevip.[ch] containing all the functions related to setting and
retrieving IP-related info for a device (both addresses and routes).
2016-06-26 19:33:09 -04:00
Laine Stump
70a2c7e062 lxc: use correct prefix when setting veth IP address
Commit c9a641 (first appearred in 1.2.12) added support for setting
the guest-side IP address of veth devices in lxc domains.
Unfortunately, it hardcoded the assumption that the proper prefix for
any IP address with no explicit prefix in the config should be "24";
that is only correct for class C IPv4 addresses, but not for any other
IPv4 address, nor for any IPv6 address.

The good news is that there is already a function in libvirt that will
determine the proper default prefix for any IP address. This patch
replaces the use of the ill-fated VIR_SOCKET_ADDR_DEFAULT_PREFIX with
calls to virSocketAddrGetIPPrefix().
2016-06-26 19:33:08 -04:00
Laine Stump
f03a4a2a96 lxc: eliminate extraneous free of netDef->ifname_guest
lxcContainerRenameAndEnableInterfaces() isn't making a copy of the
interface's ifname_guest (into newname), it's just copying the pointer
to it. This means that when it later calls VIR_FREE(newname), it's
actually freeing up (and fortunately NULLing out, so at least we don't
try to access free'd memory) netDef->ifname_guest.
2016-06-26 19:33:08 -04:00
Laine Stump
22a6873a98 global: consistently use IP rather than Ip in identifiers
I'm tired of mistyping this all the time, so let's do it the same all
the time (similar to how we changed all "Pci" to "PCI" awhile back).

(NB: I've left alone some things in the esx and vbox drivers because
I'm unable to compile them and they weren't obviously *not* a part of
some API. I also didn't change a couple of variables named,
e.g. "somethingIptables", because they were derived from the name of
the "iptables" command)
2016-06-26 19:33:07 -04:00
Ján Tomko
ff52e9d43a Remove separator argument from virBitmapParse
Most the callers pass 0 in one form or another, including
vircapstest which used VIR_ARCH_NONE.
2016-06-20 12:09:52 +02:00
Peter Krempa
f8d565bf86 conf: Rename virDomainDefGetMemoryActual to virDomainDefGetMemoryTotal 2016-06-17 10:39:40 +02:00
Daniel P. Berrange
86dd9fac0f nodeinfo: move host memory APIs out into virhostmem file
Move all APIs with a virHostMEM name prefix out into new
util/virhostmem.h & util/virhostmem.c files

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2016-06-09 18:43:18 +01:00
Daniel P. Berrange
eaf18f4c2b nodeinfo: move host CPU APIs out into virhostcpu.c file
Move all APIs with a virHostCPU name prefix out into new
util/virhostcpu.h & util/virhostcpu.c files

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2016-06-09 18:31:11 +01:00
Daniel P. Berrange
4053350bfe nodeinfo: rename all CPU APIs to have a virHostCPU prefix
In preparation for moving all the CPU related APIs out of
the nodeinfo file, give them a virHostCPU name prefix.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2016-06-09 18:08:15 +01:00
Daniel P. Berrange
dcfe37e682 nodeinfo: rename all memory APIs to have a virHostMem prefix
In preparation for moving all the memory related APIs out of
the nodeinfo file, give them a virHostMem name prefix.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2016-06-09 18:07:00 +01:00
Daniel P. Berrange
08ea852c25 nodeinfo: remove sysfs_prefix from all methods
Nearly all the methods in the nodeinfo file are given a
'const char *sysfs_prefix' parameter to override the
default sysfs path (/sys/devices/system). Every single
caller passes in NULL for this, except one use in the
unit tests. Furthermore this parameter is totally
Linux-specific, when the APIs are intended to be cross
platform portable.

This removes the sysfs_prefix parameter and instead gives
a new method linuxNodeInfoSetSysFSSystemPath for use by
the test suite.

For two of the methods this hardcodes use of the constant
SYSFS_SYSTEM_PATH, since the test suite does not need to
override the path for thos methods.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2016-06-09 18:00:18 +01:00
Ján Tomko
e4fd42d87b lxc: simplify lxcDomainGetBlkioParameters
Replace all the repetitive code by using
virDomainGetBlkioParametersAssignFromDef, similar to what commit 9f50f6e
did in the qemu driver.
2016-06-08 15:25:35 +02:00
Ján Tomko
e74bbe5caf Use virDomainObjGetDefs in lxcDomainGetBlkioParameters 2016-06-08 15:23:44 +02:00
Ján Tomko
f62e4f2091 Use virDomainObjGetDefs in lxcDomainSetBlkioParameters
Remove yet another usage of virDomainLiveConfigHelperMethod
along with an sa_assert that helped clang understand the code flow.
2016-06-08 15:23:44 +02:00
Ján Tomko
a4b1371803 Use virDomainObjGetDefs in lxcDomainGetMemoryParameters
Instead of virDomainLiveConfigHelperMethod.
2016-06-08 15:23:40 +02:00
Ján Tomko
c643910486 Use virDomainObjGetDefs in lxcDomainGetSchedulerParametersFlags
On LXC domain startup we have already called virDomainObjSetDefTransient
to fill vm->newDef.

There is no need to call virDomainLiveConfigHelperMethod which has the
ability to fill newDef if it's NULL.
2016-06-08 15:22:36 +02:00
Ján Tomko
1ca45c8fb5 Use virDomainObjGetDefs in lxcDomainSetSchedulerParametersFlags
On LXC domain startup we have already called virDomainObjSetDefTransient
to fill vm->newDef.

There is no need to call virDomainLiveConfigHelperMethod which has the
ability to fill newDef if it's NULL.
2016-06-08 15:22:00 +02:00
Ján Tomko
15654cc594 Use virDomainObjGetDefs in lxcDomainSetMemoryFlags
On LXC domain startup we have already called virDomainObjSetDefTransient
to fill vm->newDef.

There is no need to call virDomainLiveConfigHelperMethod which has the
ability to fill newDef if it's NULL.
2016-06-08 15:21:57 +02:00
Ján Tomko
c646cd742a lxc: rename vmdef to persistentDef
A few functions using virDomainLiveConfigHelperMethod use the generic
name 'vmdef' to point to the persistent definition.

Use persistentDef and/or persistentDefCopy to make its purpose obvious.
2016-06-08 15:20:35 +02:00
Daniel P. Berrange
5f1837eaca Pass config file object through to driver open methods
The virConnectOpenInternal method opens the libvirt client
config file and uses it to resolve things like URI aliases.

There may be driver specific things that are useful to
store in the config file too, so rather than have them
re-parse the same file, pass the virConfPtr down to the
drivers.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2016-06-08 13:48:45 +01:00
Peter Krempa
9890a7a183 conf: Add device def validation callback
Similarly to the domain definition validator add a device validator. The
change to the prototype of the domain validator is necessary as
virDomainDeviceInfoIterateInternal requires a non-const pointer.
2016-06-07 13:02:20 +02:00
Peter Krempa
998c9e34e6 conf: Rename VIR_DOMAIN_DEF_PARSE_VALIDATE to VIR_DOMAIN_DEF_PARSE_VALIDATE_SCHEMA
Make it obvious that the flag is controlling RNG schema validation.
2016-06-07 13:02:20 +02:00
Ján Tomko
8c40ede4a4 Do not check for domain liveness in virDomainObjSetDefTransient
Remove the live attribute and mark the definition as transient
whether the domain is runing or not.

There were only two callers left calling with live=false:
* testDomainStartState, where the domain already is active
  because we assigned vm->def->id just a few lines above the call
* virDomainObjGetPersistentDef, which now only calls
  virDomainObjSetDefTransient for an active domain
2016-06-06 08:34:22 +02:00
Ján Tomko
9b111048ad Clean up redundant usage of virDomainObjSetDefTransient
Commit 45ec297d from November 2010:
    Make state driver device hotplug/update actually transient
added virDomainObjSetDefTransient calls to the domain startup
function in several drivers.

In November 2011, commit 8866eed:
    Set aliases for LXC/UML console devices
added a call earlier in the startup function, without removing the
existing ones.

Also, in the UML driver it seems the function never did anything
useful - vm->def->id is set asynchronnously in umlNotifyEvent.
At the time of calling virDomainObjSetDefTransient with live=false,
vm->def->id was likely still -1, making the call a no-op.
2016-06-06 08:34:22 +02:00
Martin Kletzander
3470cd860d Fix building with -Og
When building using -Og, gcc sees that some variables can be used
uninitialized  It can be debatable whether it is possible with our
codeflow, but functions should be self-contained and initializations are
always good.  The return instead of goto is due to actualType being used
in the cleanup.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2016-06-03 13:26:30 +02:00
Katerina Koukiou
9b9d0f13d3 lxc: Fix virLXCDomainObjBeginJob position in lxcDomainSetMemoryParameters
Adjust the code to perform the virLXCDomainObjBeginJob first
and then the call virDomainLiveConfigHelperMethod.
As Ján Tomko pointed out, in virDomainLiveConfigHelperMethod,
there is a check to see if the domain is active when AFFECT_LIVE is set.
Since virLXCDomainObjBeginJob unlocks the virDomainObjPtr lock,
the domain could possibly be destroyed while we wait for the job
and the check results would no longer be valid.

Signed-off-by: Katerina Koukiou <k.koukiou@gmail.com>
2016-05-27 15:15:44 +02:00
Peter Krempa
e6e144689d conf: Change virDomainCputune member 'shares' to unsigned long long
cgroup functions set and get the longer type so use it everywhere
2016-05-25 16:59:58 +02:00
John Ferlan
cb0159df9f lxc: Fix lxcDomainDestroyFlags endjob processing
Commit id '15ccb0dbf' added job functions for the lxc driver; however,
for shutdown and nonpersistent path, the vm was removed from the domain
object list and the vm pointer cleared before the endjob.

Adjust the code to perform the endjob first and then perform the
ObjListRemove as long as the vm wasn't NULL. This follows more closely
models from qemu and libxl

Found by Coverity (FORWARD_NULL)
2016-05-25 06:02:42 -04:00
Laine Stump
002b7704ff lxc: support <interface type='ethernet'>
This is identical to type='bridge', but without the "connect to a
bridge" part, so it can be handled by using the same functions (and
often even the same cases in switch statements), after renaming
virLXCProcessSetupInterfaceBridged() to virLXCProcessInterfaceTap()
and enhancing it to skip bridge-related items when brname == NULL.

To be truly useful, we need to support setting the ip address on the
host side veth as well as guest side veth (already supported for
type='bridge'), as well as setting the peer address for both.

The <script> element (supported by type='ethernet' in qemu) isn't
supported in this patch. An error is logged at domain start time if it
is encountered. This may be changed in a later patch.
2016-05-24 15:21:05 -04:00
Katerina Koukiou
306b3a8504 lxc: completely rework reference counting
This patch follows the pattern used in qemu driver regarding
reference counting.
It changes lxcDomObjFromDomain() to ref the domain (using
virDomainObjListFindByUUIDRef()) and adds virDomainObjEndAPI() which
should be the only function in which the return value of
virObjectUnref() is checked.  This makes all reference counting
deterministic and makes the code a bit clearer.

Signed-off-by: Katerina Koukiou <k.koukiou@gmail.com>
2016-05-24 16:54:01 +02:00
Katerina Koukiou
6ce89dcae0 lxc: use job functions in lxcDomainLxcOpenNamespace & lxcDomainSendProcessSignal
Use the recently added job functions in lxcDomainLxcOpenNamespace,
lxcDomainSendProcessSignal.

Signed-off-by: Katerina Koukiou <k.koukiou@gmail.com>
2016-05-24 16:35:02 +02:00
Jovanka Gulicoska
b29e08dbe3 More usage of virGetLastErrorMessage
Convert to virGetLastErrorMessage() in the rest of the code
2016-05-19 15:17:03 -04:00
Katerina Koukiou
15ccb0dbf3 lxc: use job functions in lxcDomain* functions that perform modify actions.
Use the recently added job functions and unlock the virDomainObj while
performing the respective modify operation.
This commit affects lxcDomain{DestroyFlags, Reboot, SetBlkioParameters,
SetMemoryParameters, SetMetadata, SetSchedulerParameterFlags, ShutdownFlags}

Signed-off-by: Katerina Koukiou <k.koukiou@gmail.com>
2016-05-19 18:42:08 +02:00
Katerina Koukiou
95cee48056 lxc: use job functions in lxcDomain* functions that do query operations.
This commit affects lxcDomain{InterfaceStats, MemoryStats, BlockStats,
BlockStatsFlags}

Signed-off-by: Katerina Koukiou <k.koukiou@gmail.com>
2016-05-19 18:42:08 +02:00
Katerina Koukiou
30129edd5f lxc: add job functions in lxcDomainSetAutostart
This operation isn't necessarily time consuming, but need to
wait in the queue of modify jobs.

Signed-off-by: Katerina Koukiou <k.koukiou@gmail.com>
2016-05-19 18:42:08 +02:00
Katerina Koukiou
0fc0f715be lxc: use job functions in lxcDomain{AttachDeviceFlags, DetachDeviceFlags, UpdateDeviceFlags}
These operations aren't necessarily time consuming, but need to
wait in the queue of modify jobs.

Signed-off-by: Katerina Koukiou <k.koukiou@gmail.com>
2016-05-19 18:42:08 +02:00
Katerina Koukiou
91f433e45c lxc: use job functions in lxcDomain{Suspend, Resume}
These operations aren't necessarily time consuming, but need to
wait in the queue of modify jobs.

Signed-off-by: Katerina Koukiou <k.koukiou@gmail.com>
2016-05-19 18:42:08 +02:00
Katerina Koukiou
f5df98aae4 lxc: use job functions in lxcDomainSetMemoryFlags
Large balloon operation can be time consuming.  Use the recently
added job functions and unlock the virDomainObj while ballooning.

Signed-off-by: Katerina Koukiou <k.koukiou@gmail.com>
2016-05-19 18:42:08 +02:00
Katerina Koukiou
c066f9eed3 lxc: use job functions in lxcDomain{CreateXMLWithFiles, CreateWithFiles}
Creating a large domain could potentially be time consuming.  Use the
recently added job functions and unlock the virDomainObj while
the create operation is in progress.

Signed-off-by: Katerina Koukiou <k.koukiou@gmail.com>
2016-05-19 18:42:08 +02:00
Katerina Koukiou
03e9077bd1 lxc: Add job support to lxc driver
Follows the pattern used in the libxl driver for managing multiple,
simultaneous jobs within the driver.

Signed-off-by: Katerina Koukiou <k.koukiou@gmail.com>
2016-05-19 18:42:08 +02:00
Erik Skultety
898c0bbea7 headers: Remove unnecessary keyword extern from function declaration
Usage of this keyword in front of function declaration that is exported via a
header file is unnecessary, since internally, this has been the default for most
compilers for quite some time.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
2016-05-11 09:06:32 +02:00
Laine Stump
75db9997a0 util: set vlan tag for macvtap passthrough mode on SRIOV VFs
SRIOV VFs used in macvtap passthrough mode can take advantage of the
SRIOV card's transparent vlan tagging. All the code was there to set
the vlan tag, and it has been used for SRIOV VFs used for hostdev
interfaces for several years, but for some reason, the vlan tag for
macvtap passthrough devices was stubbed out with a -1.

This patch moves a bit of common validation down to a lower level
(virNetDevReplaceNetConfig()) so it is shared by hostdev and macvtap
modes, and updates the macvtap caller to actually send the vlan config
instead of -1.
2016-05-10 14:04:19 -04:00
Peter Krempa
5e9d56f83f lxc: Fix wrong error message on disk hotplug
Commit 36025c552 tried to improve error reporting for <disk type="lun">
but reused the code in LXC which doesn't care about the actual disk
type. The error messages would then contain a bogous hint that the
config for the 'lun' device is invalid which might not be the case.

Re-do the relevant portion of the commit with the original message.
2016-05-09 12:44:52 +02:00
Peter Krempa
3ec7bb354a util: Replace virDomainDiskSourceIsBlockType with a new helper
For disks sources described by a libvirt volume we don't need to do a
complicated check since virStorageTranslateDiskSourcePool already
correctly determines the actual disk type.

Replace the checks using a new accessor that does not open-code the
whole logic.
2016-05-09 12:36:52 +02:00
Erik Skultety
5841d64d25 rpc: virnetserverclient: Identify clients by an integer ID
Admin API needs a way of addressing specific clients. Unlike servers, which we
are happy to address by names both because its name reflects its purpose (to
some extent) and we only have two of them (so far), naming clients doesn't make
any sense, since a) each client is an anonymous, i.e. not recognized after a
disconnect followed by a reconnect, b) we can't predict what kind of requests
it's going to send to daemon, and c) the are loads of them comming and going,
so the only viable option is to use an ID which is of a reasonably wide data
type.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
2016-05-02 22:25:51 +02:00
John Ferlan
27726d8c21 qemu: Introduce qemuDomainHostdevPrivatePtr
Modeled after the qemuDomainDiskPrivatePtr logic, create a privateData
pointer in the _virDomainHostdevDef to allow storage of private data
for a hypervisor in order to at least temporarily store auth/secrets
data for usage during qemuBuildCommandLine.

NB: Since the qemu_parse_command (qemuParseCommandLine) code is not
expecting to restore the auth/secret data, there's no need to add
code to handle this new structure there.

Updated copyrights for modules touched. Some didn't have updates in a
couple years even though changes have been made.

Signed-off-by: John Ferlan <jferlan@redhat.com>
2016-05-02 06:10:19 -04:00
Laine Stump
70aa318b82 Revert "lxc domain allow to set peer address"
This reverts commit afee47d07c, which
added support to lxc for the "peer" attribute in domain interface <ip>
elements.

It's being removed temporarily for the release of libvirt 1.3.4
because the feature doesn't work, and there are concerns that it may
need to be modified in an externally visible manner which could create
backward compatibility problems.
2016-04-29 12:46:25 -04:00
Cole Robinson
27f2b74782 lxc: explicitly error on interface type=ethernet
It isn't implemented and does not work:

error: internal error: guest failed to start: /usr/lib/libvirt/libvirt_lxc: option '--veth' requires an argument
syntax: /usr/lib/libvirt/libvirt_lxc [OPTIONS] ...

We previously threw an explicit error, but this changed in
22cff52a2b , which I suspect was
untested for LXC
2016-04-18 17:49:45 -04:00
Martin Kletzander
aca4d72b2a Include sysmacros.h where needed
So in glibc-2.23 sys/sysmacros.h is no longer included from sys/types.h
and we don't build because of the usage of major/minor/makedev macros.
Autoconf already has AC_HEADER_MAJOR macro that check where exactly
these functions/macros are defined, so let's use that.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2016-04-18 20:36:57 +02:00
Cole Robinson
e7db227810 util: Add virGettextInitialize, convert the code
Take setlocale/gettext error handling pattern from tools/virsh-*
and use it for all standalone binaries via a new shared
virGettextInitialize routine. The virsh* pattern differed slightly
from other callers. All users now consistently:

* Ignore setlocale errors. virsh has done this forever, presumably for
  good reason. This has been partially responsible for some bug reports:

  https://bugzilla.redhat.com/show_bug.cgi?id=1312688
  https://bugzilla.redhat.com/show_bug.cgi?id=1026514
  https://bugzilla.redhat.com/show_bug.cgi?id=1016158

* Report the failed function name
* Report strerror
2016-04-14 13:22:40 -04:00
Vasiliy Tolstov
afee47d07c lxc domain allow to set peer address
Signed-off-by: Vasiliy Tolstov <v.tolstov@selfip.ru>
2016-04-07 18:27:15 +01:00
Vasiliy Tolstov
b3d069872c virnetdev allow to set peer address
Signed-off-by: Vasiliy Tolstov <v.tolstov@selfip.ru>
2016-04-07 18:22:58 +01:00
Michal Privoznik
865764de06 Drop paths.h include
We include the file in plenty of places. This is mostly due to
historical reasons. The only place that needs something from the
header file is storage_backend_fs which opens _PATH_MOUNTED. But
it gets the file included indirectly via mntent.h. At no other
place in our code we need _PATH_.*. Drop the include and
configure check then.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-03-18 09:43:45 +01:00
Martin Kletzander
fd4f278e1a daemon: Get server name from the server itself
Since servers know their name, there is no need to supply such
information twice.  Also defeats inconsistencies.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2016-03-11 12:58:41 +01:00
Martin Kletzander
dad3b07814 server: Store server name in server object
At first I did not want to do this, but after trying to implement some
newer feaures in the admin API I realized we need that to make our lives
easier.  On the other hand they are not saved redundantly and the
virNetServer objects are still kept in a hash table.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2016-03-11 12:58:41 +01:00
Peter Krempa
185d13b1b0 conf: refactor checking for unsupported memory devices
Introduce a helper to check supported device and domain config and move
the memory hotplug checks to it.

The advantage of this approach is that by default all new features are
considered unsupported by all hypervisors unless specifically changed
rather than the previous approach where every hypervisor would need to
declare that a given feature is unsupported.
2016-03-09 10:09:16 +01:00
Yuri Chornoivan
47b70b8793 Fix minor typos 2016-03-07 18:37:25 +01:00
Michal Privoznik
f3c47aafa4 virLXCProcessMonitorInitNotify: Initialize @inode
This is an error message I've just seen. Fix it by initializing
@inode.

  CC       lxc/libvirt_driver_lxc_impl_la-lxc_process.lo
lxc/lxc_process.c: In function 'virLXCProcessMonitorInitNotify':
lxc/lxc_process.c:767:23: error: 'inode' may be used uninitialized in this function [-Werror=maybe-uninitialized]
     virDomainAuditInit(vm, initpid, inode);
                       ^

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-03-04 15:23:16 +01:00
Nikolay Shirokovskiy
7d3230d36d lxc: reuse virDomainObjUpdateModificationImpact
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
2016-03-04 07:39:01 -05:00
Erik Skultety
252610f7dd virnetdaemon: Store servers in a hash table
Since the daemon can manage and add (at fresh start) multiple servers,
we also should be able to add them from a JSON state file in case of a
daemon restart, so post exec restart support for multiple servers is also
provided. Patch also updates virnetdaemontest accordingly.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2016-02-17 12:46:34 +01:00
Peter Krempa
cf113e8d54 util: cgroup: Allow ignoring EACCES in virCgroup(Allow|Deny)DevicePath
When adding disk images to ACL we may call those functions on NFS
shares. In that case we might get an EACCES, which isn't really relevant
since NFS would not hold a block device. This patch adds a flag that
allows to stop reporting an error on EACCES to avoid spaming logs.

Currently there's no functional change.
2016-02-17 10:54:05 +01:00
Peter Krempa
9cd5da710e util: cgroup: Drop virCgroup(Allow|Deny)DeviceMajor
Since commit 47e5b5ae virCgroupAllowDevice allows to pass -1 as either
the minor or major device number and it automatically uses '*' in place
of that. Reuse the new approach through the code and drop the duplicated
functions.
2016-02-17 10:54:05 +01:00
Michal Privoznik
d1a7102389 virStringListLength: Ensure const correctness
The virStringListLength function does not ever modify the passed
string list. It merely counts the items in it. Make sure that we
reflect this bit in the function header.

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

(crobinso: fix up spacing and squash in sheepdog bit suggested
 by Andrea)
2016-02-09 15:44:58 -05:00
Peter Krempa
7938b533d5 cgroup: Prepare for sparse vCPU topologies in virCgroupGetPercpuStats
Pass a bitmap of enabled guest vCPUs to virCgroupGetPercpuStats so that
non-continuous vCPU topologies can be used.
2016-02-08 09:51:34 +01:00
Martin Kletzander
c3bd0019c0 systemd: Modernize machine naming
So, systemd-machined has this philosophy that machine names are like
hostnames and hence should follow the same rules.  But we always allowed
international characters in domain names.  Thus we need to modify the
machine name we are passing to systemd.

In order to change some machine names that we will be passing to systemd,
we also need to call TerminateMachine at the end of a lifetime of a
domain.  Even for domains that were started with older libvirt.  That
can be achieved thanks to virSystemdGetMachineNameByPID().  And because
we can change machine names, we can get rid of the inconsistent and
pointless escaping of domain names when creating machine names.

So this patch modifies the naming in the following way.  It creates the
name as <drivername>-<id>-<name> where invalid hostname characters are
stripped out of the name and if the resulting name is longer, it
truncates it to 64 characters.  That way we can start domains we
couldn't start before.  Well, at least on systemd.

To make it work all together, the machineName (which is needed only with
systemd) is saved in domain's private data.  That way the generation is
moved to the driver and we don't need to pass various unnecessary
arguments to cgroup functions.

The only thing this complicates a bit is the scope generation when
validating a cgroup where we must check both old and new naming, so a
slight modification was needed there.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1282846

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2016-02-05 16:11:50 +01:00
Daniel P. Berrange
1036ddadb2 conf: add caps to virDomainObjFormat/SaveStatus
The virDomainObjFormat and virDomainSaveStatus methods
both call into virDomainDefFormat, so should be providing
a non-NULL virCapsPtr instance.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2016-02-05 10:57:08 +00:00
Joao Martins
cd57b7c742 conf: add caps to virDomainSaveConfig
virDomainSaveConfig calls virDomainDefFormat which was setting the caps
to NULL, thus keeping the old behaviour (i.e. not looking at
netprefix). This patch adds the virCapsPtr to the function and allows
the configuration to be saved and skipping interface names that were
registered with virCapabilitiesSetNetPrefix().

Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
2016-02-04 12:38:27 +00:00
Joao Martins
d239a5427f conf: add caps to virDomainDefFormat*
And use the newly added caps->host.netprefix (if it exists) for
interface names that match the autogenerated target names.

Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
2016-02-04 12:38:26 +00:00
Daniel P. Berrange
dc576025c3 lxc: don't try to hide parent cgroups inside container
On the host when we start a container, it will be
placed in a cgroup path of

   /machine.slice/machine-lxc\x2ddemo.scope

under /sys/fs/cgroup/*

Inside the containers' namespace we need to setup
/sys/fs/cgroup mounts, and currently will bind
mount /machine.slice/machine-lxc\x2ddemo.scope on
the host to appear as / in the container.

While this may sound nice, it confuses applications
dealing with cgroups, because /proc/$PID/cgroup
now does not match the directory in /sys/fs/cgroup

This particularly causes problems for systems and
will make it create repeated path components in
the cgroup for apps run in the container eg

  /machine.slice/machine-lxc\x2ddemo.scope/machine.slice/machine-lxc\x2ddemo.scope/user.slice/user-0.slice/session-61.scope

This also causes any systemd service that uses
sd-notify to fail to start, because when systemd
receives the notification it won't be able to
identify the corresponding unit it came from.
In particular this break rabbitmq-server startup

Future kernels will provide proper cgroup namespacing
which will handle this problem, but until that time
we should not try to play games with hiding parent
cgroups.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2016-01-26 16:11:32 +00:00