Commit Graph

15086 Commits

Author SHA1 Message Date
Peter Krempa
bdeb0f0123 qemu: Clear old translated pool source
Clear the old data to avoid leaking it when attempting to re-translate a
pool on the same domain object.
2013-12-03 10:38:40 +01:00
Peter Krempa
0df53f0432 qemu: Refactor disk source string formatting
This patch adds function qemuGetDriveSourceString to produce
qemu-compatible disk source strings that will enable to reuse the code
and refactors building of the qemu commandline of disks to use this new
helper.
2013-12-03 10:36:12 +01:00
Peter Krempa
b384e2b4d7 qemu: Unify formatting of RBD sources 2013-12-03 10:31:19 +01:00
Peter Krempa
d94fd0c9c2 qemu: Split out NBD command generation 2013-12-03 10:28:57 +01:00
Peter Krempa
eaa1539b2f qemu: Migrate sheepdog source generation into common function 2013-12-03 10:27:11 +01:00
Peter Krempa
078a102537 qemu: Use qemuBuildNetworkDriveURI to handle http/ftp and friends
Prepare the function to integrate other protocols and start folding
other network protocols into a common place.
2013-12-03 10:25:11 +01:00
Peter Krempa
927ddae197 qemu: Simplify call pattern of qemuBuildDriveURIString
Automatically assign secret type from the disk source definition and
pull in adding of the comma. Then update callers to keep generated
output the same.
2013-12-03 10:23:16 +01:00
Peter Krempa
a29d33ffcb qemu: Split out formatting of network disk source URI
The snapshot code will need to use qemu-style formatted URIs of network
disks. Split out the code to avoid duplication.
2013-12-03 10:19:30 +01:00
Peter Krempa
e1a4d08baf qemu: Refactor qemuTranslateDiskSourcePool
Before this patch, the translation function still needs a second ugly
helper function to actually format the command line for qemu. But if we
do the right stuff in the translation function, we don't have to bother
with the second function any more.

This patch removes the messy qemuBuildVolumeString function and changes
qemuTranslateDiskSourcePool to set stuff up correctly so that the
regular code paths meant for volumes can be used to format the command
line correctly.

For this purpose a new helper "qemuDiskGetActualType()" is introduced to
return the type of the volume in a pool.

As a part of the refactor the qemuTranslateDiskSourcePool function is
fixed to do decisions based on the pool type instead of the volume type.
This allows to separate pool-type-specific stuff more clearly and will
ease addition of other pool types that will require certain other
operations to get the correct pool source.

The previously fixed tests should make sure that we don't break stuff
that was working before.
2013-12-03 10:16:12 +01:00
Osier Yang
ec2fb767bb Doc: Explicitly declaring that nodedev-destroy only works for vHBA
Though trying to destroy a physical HBA doesn't make sense at all,
it's still a bit misleading with saying "only works for HBA".

Signed-off-by: Osier Yang <jyang@redhat.com>
2013-12-03 16:34:46 +08:00
Eric Blake
aaa7484097 virsh: improve grammar in error message
Based on a suggestion from Mauricio Tavares.

* tools/virsh-domain.c (cmdDetachInterface, vshFindDisk): Improve
wording.

Signed-off-by: Eric Blake <eblake@redhat.com>
2013-12-02 14:40:15 -07:00
Eric Blake
00b019b5ad docs: fix some typos
* docs/auditlog.html.in: Spelling fixes.

Signed-off-by: Eric Blake <eblake@redhat.com>
2013-12-02 11:59:18 -07:00
Eric Blake
99f7b63568 docs: fix typo in previous patch
Avoid a nested comment compilation error, caused by me editing
Chen's patch.

* include/libvirt/libvirt.h.in: Fix typo.

Signed-off-by: Eric Blake <eblake@redhat.com>
2013-12-02 11:27:37 -07:00
Daniel P. Berrange
4cac241a7b Ensure to zero out the virDomainBlockJobInfo arg
The virDomainGetBlockJobInfo method did not zero out the
virDomainBlockJobInfo pointer arg, so when block jobs were
not active it would return garbage for the bandwidth/cur/end
fields.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-12-02 17:34:57 +00:00
Chen Hanxiao
c268af2e9a docs: fix typos in libvirt.h.in
s/causes/cause/

Each event callback has a single detail parameter, and can
thus only report a single cause.  Also, make all the sub-event
documentation use similar wording.

Signed-off-by: Chen Hanxiao <chenhanxiao@cn.fujitsu.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2013-12-02 10:11:11 -07:00
Peter Krempa
7e6242e9a7 qemu: snapshot: Add functions similar to disk source pool translation
To avoid future pain, add placeholder functions to get the actual
snapshot disk type.
2013-12-02 14:43:13 +01:00
Peter Krempa
cdf02d6474 qemu: snapshot: Touch up error message 2013-12-02 14:43:07 +01:00
Peter Krempa
0018477fb2 conf: Add helper do clear disk source authentication struct
Add virDomainDiskAuthClear to help cleaning out the struct in other
places too.
2013-12-02 14:31:03 +01:00
Peter Krempa
d8cf91ae38 qemu: snapshot: Detect internal snapshots also for sheepdog and RBD
When doing an internal snapshot on a VM with sheepdog or RBD disks we
would not set a flag to mark the domain is using internal snapshots and
might end up creating a mixed snapshot. Move the setting of the variable
to avoid this problem.
2013-12-02 14:31:03 +01:00
Peter Krempa
ae361674ac conf: Add functions to copy and free network disk source definitions
To simplify operations on virDomainDiskHostDef arrays we will need deep
copy and freeing functions. Add and properly export them.
2013-12-02 14:31:03 +01:00
Peter Krempa
5a66c667ff snapshot: conf: Fix NULL dereference when <driver> element is empty
Consider the following valid snapshot XML as the <driver> element is
allowed to be empty in the domainsnapshot.rng schema:

$ cat snap.xml
<domainsnapshot>
  <disks>
    <disk name='vda' snapshot='external'>
      <source file='/tmp/foo'/>
      <driver/>
    </disk>
  </disks>
</domainsnapshot>

produces the following error:

$ virsh snapshot-create domain snap.xml
error: internal error: unknown disk snapshot driver '(null)'

The driver type is parsed as NULL from the XML as the attribute is not
present and then directly used to produce the error message.

With this patch the attempt to parse the driver type is skipped if not
present to avoid changing the schema to forbid the empty driver element.
2013-12-02 14:31:02 +01:00
Peter Krempa
43f2ccdc73 snapshot: conf: Use common parsing and formatting functions for source
Disk source elements for snapshots were using separate code from our
config parser. As snapshots can be stored on more than just regular
files, we will need the universal parser to allow us to expose a variety
of snapshot disk targets. This patch reuses the config parsers and
formatters to do the job.

This initial support only changes the code without any visible XML
change.
2013-12-02 14:28:20 +01:00
Peter Krempa
5f86d11e4a conf: Export disk source formatter and parser
This code will be reused in the snapshot disk definition parser.
2013-12-02 14:02:27 +01:00
Peter Krempa
30f7ca67d9 conf: Split out seclabel formating code for disk source
The code is common for all the various disk types. Split it out to a
common function.
2013-12-02 14:02:27 +01:00
Peter Krempa
03ad83cb5a conf: Clean up virDomainDiskSourceDefFormatInternal
Avoid if statements when used with virBufferEscapeString which
automaticaly omits the whole string. Also add some line breaks to
visualy separate the code.
2013-12-02 14:02:27 +01:00
Peter Krempa
d6b4c2cca9 conf: Support disk source formatting without needing a virDomainDiskDefPtr
The <source> element formatting function was expecting a
virDomainDiskDefPtr to store the data. As snapshots are not using this
data structure to hold the data, we need to add an internal function
which splits out individual fields separately.
2013-12-02 14:02:26 +01:00
Peter Krempa
436fa772fb tests: Fix comment for fake storage pool driver
Commit bae124e40f was accidentaly pushed
without review feedback worked in. Fix it up.
2013-12-02 13:36:09 +01:00
Peter Krempa
7e831969c0 qemuxml2argv: Add test for disk type='volume' with iSCSI pools
Tweak the existing file so that it can be tested for command line
corectness.
2013-12-02 10:32:09 +01:00
Peter Krempa
9f9906727b qemuxml2argv: Add test to verify correct usage of disk type="volume"
Tweak the existing file to test command line generator too.
2013-12-02 10:32:09 +01:00
Peter Krempa
bae124e40f test: Implement fake storage pool driver in qemuxml2argv test
To support testing of "volume" disk backing, we need to implement a few
disk driver backend functions.

The fake storage driver uses files in storagepoolxml2xmlout/POOLNAME.xml
as XML files for pool definitions and volume names are in format
"VOL_TYPE+VOL_PATH". By default type "block" is assumed (for iSCSI test
compatibility).

The choice of this approach along with implemented functions was made so
that <disk type='volume'> can be tested in the xml2argv test.
2013-12-02 10:32:09 +01:00
Daniel Veillard
4e41a2a370 Release of libvirt-1.2.0
* configure.ac docs/news.html.in libvirt.spec.in: update for release
* po/*.po*: update and merge localizations from transifex
2013-12-02 12:17:51 +08:00
Ryota Ozaki
1ed7e014dd vbox: handle errors of virDomainHostdevDefAlloc correctly
The original code ignored errors of virDomainHostdevDefAlloc,
however, we should properly do error return from the function
if it occurs.

The fix pulls out virDomainHostdevDefAlloc from the loop and
executes it all together before the loop. So we can easily
return on errors without the notion of other memory allocations
in the loop.

The deallocation code is separated from the allocation code
because it will be used by a further patch for fixing other error
handlings.

Reported-by: Laine Stump <laine@laine.org>
Signed-off-by: Ryota Ozaki <ozaki.ryota@gmail.com>
2013-12-02 10:59:21 +08:00
Ryota Ozaki
82b5dd23f3 vbox: fix incorrect loop condition in vboxHostDeviceGetXMLDesc
The fixed loop used logical OR to combine two conditions, however,
it is apparently incorrect and logical AND is correct.

We can fix it by replacing OR with AND, but this patch instead
fixes the problem by getting rid of the first conditional
statement: USBFilterCount < def->nhostdevs. It isn't needed
because USBFilterCount will never be greater than or equal to
def->nhostdevs.

def->nhostdevs is calculated in the following code
above the loop in question like this:

    for (i = 0; i < deviceFilters.count; i++) {
        PRBool active = PR_FALSE;
        IUSBDeviceFilter *deviceFilter = deviceFilters.items[i];

        deviceFilter->vtbl->GetActive(deviceFilter, &active);
        if (active) {
            def->nhostdevs++;
        }
    }

And the loop is constructed as like this:

    for (i = 0; (USBFilterCount < def->nhostdevs) || (i < deviceFilters.count); i++) {
        PRBool active                  = PR_FALSE;
(snip)
        deviceFilter->vtbl->GetActive(deviceFilter, &active);
        if (!active)
            continue;
(snip)
        USBFilterCount++;
    }

So def->nhostdevs is the number of active device filters and
USBFilterCount is counted up only when a device filter is active.
Thus, we can remove USBFilterCount < def->nhostdevs safely.

Reported-by: Laine Stump <laine@laine.org>
Signed-off-by: Ryota Ozaki <ozaki.ryota@gmail.com>
2013-12-02 10:57:14 +08:00
Chen Hanxiao
d3572bb7b4 docs: fix typos in libvirt.h.in
s/caused/causes

Signed-off-by: Chen Hanxiao <chenhanxiao@cn.fujitsu.com>
2013-12-02 10:50:27 +08:00
Daniel P. Berrange
484b60409c Link libvirt-sandbox from apps page
Add a link to the http://sandbox.libvirt.org sub-site from the
list of libraries related to libvirt. Also fix formatting for
the ruby libvirt binding.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-12-02 10:46:40 +08:00
Daniel P. Berrange
84fe15c332 Add docs about audit subsystem logging
Adds a new page to the website "Deployment" section describing
what data is sent to the audit logs and how to configure libvirtd
audit settings.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-12-02 10:43:44 +08:00
Nehal J Wani
6c874c01a0 Fix memory leak in virNWFilterDefParseXML()
While running nwfilterxml2xmltest, it was found that valgrind pointed out the
following error...

==7466== 16 bytes in 1 blocks are definitely lost in loss record 26 of 90
==7466==    at 0x4A06B6F: calloc (vg_replace_malloc.c:593)
    ==7466==    by 0x4C651AD: virAlloc (viralloc.c:142)
    ==7466==    by 0x4D0450D: virNWFilterDefParseNode (nwfilter_conf.c:2575)
    ==7466==    by 0x4D05D84: virNWFilterDefParse (nwfilter_conf.c:2647)
    ==7466==    by 0x401FDE: testCompareXMLToXMLHelper (nwfilterxml2xmltest.c:39)
    ==7466==    by 0x402DE1: virtTestRun (testutils.c:138)
    ==7466==    by 0x4018E9: mymain (nwfilterxml2xmltest.c:111)
    ==7466==    by 0x403482: virtTestMain (testutils.c:593)
    ==7466==    by 0x341F421A04: (below main) (libc-start.c:225)

...21 times, which are related to 21 tests in nwfilterxml2xmltest.c which sent
EXPECT_WARN = false. There were two scenarios in virNWFilterDefParseXML(),
when the variable 'entry' was malloc'ed, but not freed.
2013-12-02 10:39:44 +08:00
Nehal J Wani
2cfcd2ccd0 Fix memory leak in virDomainDefParseXML()
This patch fixes the memory leaks found while running qemuxml2argvtest

==8260== 3 bytes in 1 blocks are definitely lost in loss record 1 of
129
==8260==    at 0x4A0887C: malloc (vg_replace_malloc.c:270)
==8260==    by 0x341F485E21: strdup (strdup.c:42)
==8260==    by 0x4CADCFF: virStrdup (virstring.c:554)
==8260==    by 0x4CBB839: virXPathString (virxml.c:90)
==8260==    by 0x4CE753A: virDomainDefParseXML (domain_conf.c:11478)
==8260==    by 0x4CEB4FE: virDomainDefParseNode (domain_conf.c:12742)
==8260==    by 0x4CEB675: virDomainDefParse (domain_conf.c:12684)
==8260==    by 0x425958: testCompareXMLToArgvHelper (qemuxml2argvtest.c:107)
==8260==    by 0x427111: virtTestRun (testutils.c:138)
==8260==    by 0x41D3FE: mymain (qemuxml2argvtest.c:452)
==8260==    by 0x4277B2: virtTestMain (testutils.c:593)
==8260==    by 0x341F421A04: (below main) (libc-start.c:225)
==8260==
==8260== 4 bytes in 1 blocks are definitely lost in loss record 5 of
129
==8260==    at 0x4A0887C: malloc (vg_replace_malloc.c:270)
==8260==    by 0x341F485E21: strdup (strdup.c:42)
==8260==    by 0x4CADCFF: virStrdup (virstring.c:554)
==8260==    by 0x4CBB839: virXPathString (virxml.c:90)
==8260==    by 0x4CE753A: virDomainDefParseXML (domain_conf.c:11478)
==8260==    by 0x4CEB4FE: virDomainDefParseNode (domain_conf.c:12742)
==8260==    by 0x4CEB675: virDomainDefParse (domain_conf.c:12684)
==8260==    by 0x425958: testCompareXMLToArgvHelper (qemuxml2argvtest.c:107)
==8260==    by 0x427111: virtTestRun (testutils.c:138)
==8260==    by 0x41D39A: mymain (qemuxml2argvtest.c:451)
==8260==    by 0x4277B2: virtTestMain (testutils.c:593)
==8260==    by 0x341F421A04: (below main) (libc-start.c:225)
==8260==
2013-12-02 10:34:52 +08:00
Nehal J Wani
77b97d800c virsh: fix doc typos
Fix 6 minor spelling errors in virsh doc
2013-12-02 10:22:44 +08:00
Nehal J Wani
968a46923a Fix typos in various docs
Fix 8 minor spelling errors in docs/*.html.in
2013-12-02 10:21:26 +08:00
Daniel P. Berrange
262157f651 LXC: Ensure security context is set when mounting images
When setting up filesystems backed by block devices or file
images, the SELinux mount options must be used to ensure the
correct context is set

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-11-29 12:19:37 +00:00
Laine Stump
54f9492353 network: properly update iptables rules during net-update
This patch resolves:

  https://bugzilla.redhat.com/show_bug.cgi?id=1035336

The basic problem is that during a network update, the required
iptables rules sometimes change, and this was being handled by simply
removing and re-adding the rules. However, the removal of the old
rules was done based on the *new* state of the network, which would
mean that some of the rules would not match those currently in the
system, so the old rules wouldn't be removed.

This patch removes the old rules prior to updating the network
definition then adds the new rules as soon as the definition is
updated. Note that this could lead to a stray packet or two during the
interim, but that was already a problem before (the period of limbo is
now just slightly longer).

While moving the location for the rules, I added a few more sections
that should result in the iptables rules being redone:

DHCP_RANGE and DHCP_HOST - these are needed because adding/removing a dhcp
host entry could lead to the dhcp service being started/stopped, which
would require that the mangle rule that fixes up dhcp response
checksums sould need to be added/removed, and this wasn't being done.
2013-11-28 16:55:20 +02:00
Daniel P. Berrange
84fd470d3d Fix bug in identifying sub-mounts
The code for extracting sub-mounts would just do a STRPREFIX
check on the mount. This was flawed because if there were
the following mounts

 /etc/aliases
 /etc/aliases.db

and '/etc/aliases' was asked for, it would return both even
though the latter isn't a sub-mount.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-11-28 11:49:01 +00:00
Daniel P. Berrange
d45b833d14 Pull lxcContainerGetSubtree out into shared virfile module
Move the code for lxcContainerGetSubtree into the virfile
module creating 2 new functions

  int virFileGetMountSubtree(const char *mtabpath,
                             const char *prefix,
                             char ***mountsret,
                             size_t *nmountsret);
  int virFileGetMountReverseSubtree(const char *mtabpath,
                                    const char *prefix,
                                    char ***mountsret,
                                    size_t *nmountsret);

Add a new virfiletest.c test case to validate the new code.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-11-28 11:49:01 +00:00
Daniel P. Berrange
c60a2713d6 Introduce standard methods for sorting strings with qsort
Add virStringSortCompare and virStringSortRevCompare as
standard functions to use with qsort.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-11-28 11:29:46 +00:00
Eric Blake
e821de2c5a tests: fix virpcitest with read-only srcdir
'make distcheck' has been broken since commit 21685c9; basically,
it emulates the case of a read-only $(srcdir) (such as building
from a tarball exploded onto a CD-ROM), but we were creating our
fake pci device as a symlink into $(srcdir) and failing when that
requires opening the config file for writing:

 3) testVirPCIDeviceReset                                             ... libvirt:  error : Failed to open config space file '/sys/bus/pci/devices/0000:00:01.0/config': Permission denied

Fix it by copying rather than symlinking.

* tests/virpcimock.c (make_file): Add parameter to allow binary
creation; adjust all callers.
(pci_device_new_from_stub): Copy rather than symlink.

Signed-off-by: Eric Blake <eblake@redhat.com>
2013-11-27 15:06:15 -07:00
Eric Blake
0aa873d741 tests: guarantee abs_srcdir in all C tests
While trying to debug a failure of virpcitest during 'make distcheck',
I noticed that with a VPATH build, 'cd tests; ./virpcitest' fails for
an entirely different reason.  To reproduce the distcheck failure, I
had to run 'cd tests; abs_srcdir=/path/to/src ./virpcitest'.  But we
document in HACKING that all of our tests are supposed to be runnable
without requiring extra environment variables.

The solution: hardcode the location of srcdir into the just-built
binaries, rather than requiring make to prepopulate environment
variables.  With this, './virpcitest' passes even in a VPATH build
(provided that $(srcdir) is writable; a followup patch will fix the
conditions required by 'make distcheck').  [Note: the makefile must
still pass on directory variables to the test environment of shell
scripts, since those aren't compiled.  So while this solves the case
of a compiled test, it still requires environment variables to pass
a VPATH build of any shell script test case that relies on srcdir.]

* tests/Makefile.am (AM_CFLAGS): Define abs_srcdir in all compiled
tests.
* tests/testutils.h (abs_srcdir): Quit declaring.
* tests/testutils.c (virtTestMain): Rely on define rather than
environment variable.
* tests/virpcimock.c (pci_device_new_from_stub): Rely on define.
* tests/cputest.c (mymain): Adjust abs_top_srcdir default.
* tests/qemuxml2argvtest.c (mymain): Likewise.
* tests/qemuxmlnstest.c (mymain): Likewise.

Signed-off-by: Eric Blake <eblake@redhat.com>
2013-11-27 14:39:56 -07:00
Peter Krempa
69d20452ce conf: Export virStorageVolType enum helper functions
Export string conversion from and to the virStorageVolType enum.
2013-11-27 15:17:21 +01:00
Eric Blake
c8b8b50c3b storage: skip selinux cleanup when fd not available
When attempting to backport gluster pools to an older versoin
where there is no VIR_STRDUP, I got a crash from calling
strdup(,NULL). Rather than relying on the current else branch
safely doing nothing when there is no fd, it is easier to just
skip it. While at it, there's no need to explicitly set
perms.label to NULL after a VIR_FREE().

* src/storage/storage_backend.c
(virStorageBackendUpdateVolTargetInfoFD): Minor optimization.

Signed-off-by: Eric Blake <eblake@redhat.com>
2013-11-27 06:08:28 -07:00
Bing Bu Cao
8e043864ec qemu: preserve netdev MAC address during 'domxml-to-native'
The virsh command 'domxml-to-native' (virConnectDomainXMLToNative())
converts all network devices to "type='ethernet'" in order to make it
more likely that the generated command could be run directly from a
shell (other libvirt network device types end up referencing file
descriptors for tap devices assumed to have been created by libvirt,
which can't be done in this case).

During this conversion, all of the netdev parameters are cleared out,
then specific items are filled in after changing the type. The MAC
address was not one of these preserved items, and the result was that
mac addresses in the generated commandlines were always
00:00:00:00:00:00.

This patch saves the mac address before the conversion, then
repopulates it afterwards, so the proper mac addresses show up in the
commandline.

Signed-off-by: Bing Bu Cao <mars@linux.vnet.ibm.com>
Signed-off-by: Laine Stump <laine@laine.org>
2013-11-27 14:20:18 +02:00