Commit Graph

9195 Commits

Author SHA1 Message Date
D. Herrendoerfer
d04394288f util: rename netlink.[ch] to virnetlink.[ch]
Rename the src/util/netlink files to src/util/virnetlink to
better fit the naming scheme. Also rename nlComm to virNetlinkCommand.

Signed-off-by: D. Herrendoerfer <d.herrendoerfer@herrendoerfer.name>
2012-02-03 15:27:40 -05:00
Laine Stump
3e952ecc52 virsh: add --graceful switch to destroy command
This allows virsh to use the new VIR_DOMAIN_DESTROY_GRACEUL flag for
virDomainDestroyFlags.
2012-02-03 14:50:14 -05:00
Laine Stump
72f8a7f197 qemu: new GRACEFUL flag for virDomainDestroy w/ QEMU support
When libvirt's virDomainDestroy API is shutting down the qemu process,
it first sends SIGTERM, then waits for 1.6 seconds and, if it sees the
process still there, sends a SIGKILL.

There have been reports that this behavior can lead to data loss
because the guest running in qemu doesn't have time to flush its disk
cache buffers before it's unceremoniously whacked.

This patch maintains that default behavior, but provides a new flag
VIR_DOMAIN_DESTROY_GRACEFUL to alter the behavior. If this flag is set
in the call to virDomainDestroyFlags, SIGKILL will never be sent to
the qemu process; instead, if the timeout is reached and the qemu
process still exists, virDomainDestroy will return an error.

Once this patch is in, the recommended method for applications to call
virDomainDestroyFlags will be with VIR_DOMAIN_DESTROY_GRACEFUL
included. If that fails, then the application can decide if and when
to call virDomainDestroyFlags again without
VIR_DOMAIN_DESTROY_GRACEFUL (to force the issue with SIGKILL).

(Note that this does not address the issue of existing applications
that have not yet been modified to use VIR_DOMAIN_DESTROY_GRACEFUL.
That is a separate patch.)
2012-02-03 14:21:17 -05:00
Philipp Hahn
99d24ab2e0 virterror.c: Fix several spelling mistakes
compat{a->i}bility
erron{->e}ous
nec{c->}essary.
Either "the" or "a".

Signed-off-by: Philipp Hahn <hahn@univention.de>
2012-02-03 11:32:51 -07:00
Martin Kletzander
5a4ed59ad9 Added missing memory reporting into python bindings
Two types of memory stats were not reported by python bindings. This
patch fixes both of them.
2012-02-03 10:48:32 -07:00
Eric Blake
c700613b8d python: use libvirt_util to avoid raw free
This patch starts the process of elevating the python binding code
to be on the same level as the rest of libvirt when it comes to
requiring good coding styles.  Statically linking against the
libvirt_util library makes it much easier to write good code,
rather than having to open-code and reinvent things locally.

Done by global search and replace of s/free(/VIR_FREE(/, followed
by hand-inspection of remaining malloc and redundant memset.

* cfg.mk (exclude_file_name_regexp--sc_prohibit_raw_allocation):
Remove python from exemption.
* python/Makefile.am (INCLUDES): Add gnulib and src/util.  Drop
$(top_builddir)/$(subdir), as automake already guarantees that.
(mylibs, myqemulibs): Pull in libvirt_util and gnulib.
(libvirtmod_la_CFLAGS): Catch compiler warnings if configured to
use -Werror.
* python/typewrappers.c (libvirt_charPtrSizeWrap)
(libvirt_charPtrWrap): Convert free to VIR_FREE.
* python/generator.py (print_function_wrapper): Likewise.
* python/libvirt-override.c: Likewise.
2012-02-03 10:41:47 -07:00
Eric Blake
8fe454ce90 build: expand rule to cover testsuite
The bulk of this patch was done with:

sed -i 's/\(\bfree *(/VIR_FREE(/g' tests/*.c

followed by fixing the few compile errors that resulted.

* cfg.mk (exclude_file_name_regexp--sc_prohibit_raw_allocation):
Remove tests from exemption.
* tests/testutils.h: Add common header.
* tests/commandhelper.c: Fix offenders.
* tests/cputest.c: Likewise.
* tests/domainsnapshotxml2xmltest.c: Likewise.
* tests/interfacexml2xmltest.c: Likewise.
* tests/networkxml2argvtest.c: Likewise.
* tests/networkxml2xmltest.c: Likewise.
* tests/nodedevxml2xmltest.c: Likewise.
* tests/nodeinfotest.c: Likewise.
* tests/nwfilterxml2xmltest.c: Likewise.
* tests/qemuargv2xmltest.c: Likewise.
* tests/qemuxml2argvtest.c: Likewise.
* tests/qemuxml2xmltest.c: Likewise.
* tests/qemuxmlnstest.c: Likewise.
* tests/qparamtest.c: Likewise.
* tests/sexpr2xmltest.c: Likewise.
* tests/storagepoolxml2xmltest.c: Likewise.
* tests/storagevolxml2xmltest.c: Likewise.
* tests/testutils.c: Likewise.
* tests/virshtest.c: Likewise.
* tests/xencapstest.c: Likewise.
* tests/xmconfigtest.c: Likewise.
* tests/xml2sexprtest.c: Likewise.
2012-02-03 10:41:46 -07:00
Eric Blake
a7cfd709f4 build: prohibit raw malloc and free
Our HACKING discourages use of malloc and free, for at least
a couple of years now.  But we weren't enforcing it, until now :)

For now, I've exempted python and tests, and will clean those up
in subsequent patches.  Examples should be permanently exempt,
since anyone copying our examples won't have use of our
internal-only memory.h via libvirt_util.la.

* cfg.mk (sc_prohibit_raw_allocation): New rule.
(exclude_file_name_regexp--sc_prohibit_raw_allocation): and
exemptions.
* src/cpu/cpu.c (cpuDataFree): Avoid false positive.
* src/conf/network_conf.c (virNetworkDNSSrvDefParseXML): Fix
offenders.
* src/libxl/libxl_conf.c (libxlMakeDomBuildInfo, libxlMakeVfb)
(libxlMakeDeviceModelInfo): Likewise.
* src/rpc/virnetmessage.c (virNetMessageSaveError): Likewise.
* tools/virsh.c (_vshMalloc, _vshCalloc): Likewise.
2012-02-03 10:41:45 -07:00
Eric Blake
25adc8f4fe python: drop redundant function
I noticed some redundant code while preparing my next patch.

* python/generator.py (py_types): Fix 'const char *' mapping.
* python/typewrappers.h (libvirt_charPtrConstWrap): Drop.
* python/typewrappers.c (libvirt_charPtrConstWrap): Delete, since
it is identical to libvirt_constcharPtrWrap.
2012-02-03 10:41:44 -07:00
Eric Blake
cb33ee1fad build: clean up CPPFLAGS/INCLUDES usage
Our syntax checker missed all-lower-case variables (this will
be fixed by the next .gnulib update).  Additionally, anywhere
that we mix in-tree files with generated files, automake recommends
listing builddir prior to srcdir for VPATH builds.

* src/Makefile.am (*_la_CFLAGS): Favor $(top_srcdir).
(INCLUDES): Likewise, and follow automake recommendations on
builddir before srcdir.
* python/Makefile.am (INCLUDES): Swap directory order.
* tests/Makefile.am (INCLUDES): Likewise.
* tools/Makefile.am (INCLUDES): Likewise.
* daemon/Makefile.am (INCLUDES): Likewise.
(libvirtd.init, libvirtd.service): Favor $().
* examples/hellolibvirt/Makefile.am (hellolibvirt_LDADD):
Likewise.
* examples/openauth/Makefile.am (openauth_LDADD): Likewise.
* examples/dominfo/Makefile.am (INCLUDES): Drop dead include.
* examples/domsuspend/Makefile.am (INCLUDES): Likewise.
2012-02-03 10:36:02 -07:00
Eric Blake
c9ace552eb command: allow merging stdout and stderr in string capture
Sometimes, its easier to run children with 2>&1 in shell notation,
and just deal with stdout and stderr interleaved.  This was already
possible for fd handling; extend it to also work when doing string
capture of a child process.

* docs/internals/command.html.in: Document this.
* src/util/command.c (virCommandSetErrorBuffer): Likewise.
(virCommandRun, virExecWithHook): Implement it.
* tests/commandtest.c (test14): Test it.
* daemon/remote.c (remoteDispatchAuthPolkit): Use new command
feature.
2012-02-03 10:02:34 -07:00
Eric Blake
9a3fc7f3f7 maint: prune duplicate listings in AUTHORS
* AUTHORS: Remove duplicates.
* .mailmap: Update accordingly.
2012-02-03 09:56:45 -07:00
Taku Izumi
2eaf71a6ab virsh: extension of virsh attach-disk for rawio
This patch extends "virsh attach-disk" command so that
we can specify "rawio" attribute.

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
2012-02-03 11:50:29 -05:00
Martin Kletzander
32f881c6c4 Fixed connection definition for non-SELinux builds
This patch fixes the access of variable "con" in two files where the
variable was declared only on SELinux builds and thus the build failed
without SELinux. It's a rather nasty fix but helps fix the build
quickly and without any major changes to the code.
2012-02-03 16:13:45 +01:00
Martin Kletzander
3d93706d0d Added RSS reporting
Added RSS information gathering into qemuMemoryStats into qemu driver
and the reporting into virsh dommemstat.
2012-02-03 20:54:58 +08:00
Martin Kletzander
350d6ccb91 Added RSS information gathering into qemudGetProcessInfo
One more parameter added into the function parsing /proc/<pid>/stat
and the call of the function is fixed as well.
2012-02-03 20:33:57 +08:00
Osier Yang
f0495ae943 Replace TAB with white spaces 2012-02-03 19:27:09 +08:00
Jiri Denemark
b24ed37fff lxc: Fix build with AppArmor 2012-02-03 11:05:21 +01:00
Alex Jia
d166cf76b0 conf: Plug memory on virDomainDiskDefParseXML
Detected by valgrind. Leak is introduced in commit 397e6a7.

* src/conf/domain_conf.c(virDomainDiskDefParseXML): fix memory leak.

How to reproduce?
% make -C tests check TESTS=qemuxml2argvtest
% cd tests && valgrind -v --leak-check=full ./qemuxml2argvtest

* Actual result:

==16352== 4 bytes in 1 blocks are definitely lost in loss record 12 of 147
==16352==    at 0x4A05FDE: malloc (vg_replace_malloc.c:236)
==16352==    by 0x39D90A67DD: xmlStrndup (xmlstring.c:45)
==16352==    by 0x4E83D5: virDomainDiskDefParseXML (domain_conf.c:2894)
==16352==    by 0x4F542D: virDomainDefParseXML (domain_conf.c:7626)
==16352==    by 0x4F8683: virDomainDefParseNode (domain_conf.c:8390)
==16352==    by 0x4F904E: virDomainDefParse (domain_conf.c:8340)
==16352==    by 0x41C626: testCompareXMLToArgvHelper (qemuxml2argvtest.c:105)
==16352==    by 0x41DED1: virtTestRun (testutils.c:142)
==16352==    by 0x418172: mymain (qemuxml2argvtest.c:486)
==16352==    by 0x41D5C7: virtTestMain (testutils.c:697)
==16352==    by 0x39CF01ECDC: (below main) (in /lib64/libc-2.12.so)

Signed-off-by: Alex Jia <ajia@redhat.com>
2012-02-03 16:57:15 +08:00
Daniel P. Berrange
5df67cdcd3 Set a security context on /dev and /dev/pts mounts
To allow the container to access /dev and /dev/pts when under
sVirt, set an explicit mount option. Also set a max size on
the /dev mount to prevent DOS on memory usage

* src/lxc/lxc_container.c: Set /dev mount context
* src/lxc/lxc_controller.c: Set /dev/pts mount context
2012-02-02 17:45:19 -07:00
Daniel P. Berrange
0f01192e7e Add support for sVirt in the LXC driver
For the sake of backwards compat, LXC guests are *not*
confined by default. This is because it is not practical
to dynamically relabel containers using large filesystem
trees. Applications can create confined containers though,
by giving suitable XML configs

* src/Makefile.am: Link libvirt_lxc to security drivers
* src/lxc/libvirtd_lxc.aug, src/lxc/lxc_conf.h,
  src/lxc/lxc_conf.c, src/lxc/lxc.conf,
  src/lxc/test_libvirtd_lxc.aug: Config file handling for
  security driver
* src/lxc/lxc_driver.c: Wire up security driver functions
* src/lxc/lxc_controller.c: Add a '--security' flag to
  specify which security driver to activate
* src/lxc/lxc_container.c, src/lxc/lxc_container.h: Set
  the process label just before exec'ing init.
2012-02-02 17:44:39 -07:00
Daniel P. Berrange
b170eb99f5 Add two new security label types
Curently security labels can be of type 'dynamic' or 'static'.
If no security label is given, then 'dynamic' is assumed. The
current code takes advantage of this default, and avoids even
saving <seclabel> elements with type='dynamic' to disk. This
means if you temporarily change security driver, the guests
can all still start.

With the introduction of sVirt to LXC though, there needs to be
a new default of 'none' to allow unconfined LXC containers.

This patch introduces two new security label types

 - default:  the host configuration decides whether to run the
             guest with type 'none' or 'dynamic' at guest start
 - none:     the guest will run unconfined by security policy

The 'none' label type will obviously be undesirable for some
deployments, so a new qemu.conf option allows a host admin to
mandate confined guests. It is also possible to turn off default
confinement

  security_default_confined = 1|0  (default == 1)
  security_require_confined = 1|0  (default == 0)

* src/conf/domain_conf.c, src/conf/domain_conf.h: Add new
  seclabel types
* src/security/security_manager.c, src/security/security_manager.h:
  Set default sec label types
* src/security/security_selinux.c: Handle 'none' seclabel type
* src/qemu/qemu.conf, src/qemu/qemu_conf.c, src/qemu/qemu_conf.h,
  src/qemu/libvirtd_qemu.aug: New security config options
* src/qemu/qemu_driver.c: Tell security driver about default
  config
2012-02-02 17:44:37 -07:00
Daniel P. Berrange
87c39f0e20 Re-add domain device seclabel parsing / formatting
This re-introduces parsing & formatting for per device seclabels.
There is a new virDomainDeviceSeclabelPtr struct and corresponding
APIs for parsing/formatting.
2012-02-02 17:36:48 -07:00
Daniel P. Berrange
ae6135bf05 Revert changes to sec label parsing
Revert parsing changes:

  commit 302fe95ffa
  Author: Eric Blake <eblake@redhat.com>
  Date:   Wed Jan 4 16:01:24 2012 -0700

    seclabel: fix regression in libvirtd restart

  commit b43432931a
  Author: Eric Blake <eblake@redhat.com>
  Date:   Thu Dec 22 17:47:50 2011 -0700

    seclabel: allow a seclabel override on a disk src

These two commits changed the sec label parsing code so that
the same code dealt with both the VM level sec label, and the
per device label. Unfortunately, as we add more options to the
VM level sec label, the logic required to use the same parsing
code for the per device label becomes unintelligible.

* src/conf/domain_conf.c: Remove support for parsing per
  device sec labels
2012-02-02 17:36:40 -07:00
Dave Allan
e68f22ae65 Add detail to documentation on storage pools and volumes.
The storage pools page contains details about the capabilities of the
various pool types, but not an overview of how they are intended to be
used.  This patch adds some explanation of what pools and volumes can
be used for and why an administrator might want to use them.
2012-02-02 15:51:25 -07:00
Alex Jia
6152c74595 virsh: Plug memory leak on cmdUndefine
Detected by valgrind. Leak is introduced in commit 3bb6bcf.

Free 'vol' memory before allocating memory, the codes will miss one time
free when 'vol_i = nvolumes' in for loop, so plug memory leak.

* tools/virsh.c: fix memory leak on cmdUndefine.

* How to reproduce?
% dd if=/dev/null of=/var/lib/libvirt/images/foo bs=1 count=1 seek=10M
% virsh define foo.xml                   (disk source file points to '/var/lib/libvirt/images/foo')
% virsh vol-clone foo foo-clone default  (the original guest name is 'foo')
% virsh pool-refresh default
% virsh vol-list default                 (make sure 'foo-clone' volume exists)
% virsh define foo-clone.xml             (disk source file points to '/var/lib/libvirt/images/foo-clone')
% valgrind -v --leak-check=full virsh undefine foo-clone --remove-all-storage

* Actual results:

1. virsh output
Domain foo-clone has been undefined
Volume '/var/lib/libvirt/images/foo-clone' removed.

error: Failed to disconnect from the hypervisor, 1 leaked reference(s)

2. valgrind result

==6515== 92 (40 direct, 52 indirect) bytes in 1 blocks are definitely lost in loss record 46 of 69
==6515==    at 0x4A04A28: calloc (vg_replace_malloc.c:467)
==6515==    by 0x4C89B71: virAlloc (memory.c:101)
==6515==    by 0x4CFCACE: virGetStorageVol (datatypes.c:724)
==6515==    by 0x4D4A8E0: remoteStorageVolLookupByPath (remote_driver.c:4664)
==6515==    by 0x4D07153: virStorageVolLookupByPath (libvirt.c:12508)
==6515==    by 0x4270E6: cmdUndefine (virsh.c:2828)
==6515==    by 0x4151B6: vshCommandRun (virsh.c:17693)
==6515==    by 0x4264D3: main (virsh.c:19270)
==6515==
==6515== LEAK SUMMARY:
==6515==    definitely lost: 40 bytes in 1 blocks

RHBZ: https://bugzilla.redhat.com/show_bug.cgi?id=786674

Signed-off-by: Alex Jia <ajia@redhat.com>
2012-02-02 11:41:40 +01:00
Marc-André Lureau
02ee87451b Update gnulib to fix mingw64 compilation errors 2012-02-01 17:37:45 -07:00
Philipp Hahn
22ec60001e tests: dynamically replace dnsmasq path
The path to the dnsmasq binary can be configured while in the test data
the path is hard-coded to /usr/bin/. This break the test suite if a the
binary is located in a different location, like /usr/local/sbin/.

Replace the hard coded path in the test data by a token, which is
dynamically replaced in networkxml2argvtest with the configured path
after the test data has been loaded.

(Another option would have been to modify configure.ac to generate the
 test data during configure, but I do not know of an easy way do trick
 configure into mass-generate those test files without listing every
 single one, which I consider less flexible.)

- unit-test the unit-test:
  #include <assert.h>
  #define TEST(in,token,rep,out) { char *buf = strdup(in); assert(!replaceTokens(&buf, token, rep) && !strcmp(buf, out)); free(buf); }
  TEST("", "AA", "B", "");
  TEST("A", "AA", "B", "A");
  TEST("AA", "AA", "B", "B");
  TEST("AAA", "AA", "B", "BA");
  TEST("AA", "AA", "BB", "BB");
  TEST("AA", "AA", "BBB", "BBB");
  TEST("<AA", "AA", "B", "<B");
  TEST("<AA", "AA", "BB", "<BB");
  TEST("<AA", "AA", "BBB", "<BBB");
  TEST("AA>", "AA", "B", "B>");
  TEST("AA>", "AA", "BB", "BB>");
  TEST("AA>", "AA", "BBB", "BBB>");
  TEST("<AA>", "AA", "B", "<B>");
  TEST("<AA>", "AA", "BB", "<BB>");
  TEST("<AA>", "AA", "BBB", "<BBB>");
  TEST("<AA|AA>", "AA", "B", "<B|B>");
  TEST("<AA|AA>", "AA", "BB", "<BB|BB>");
  TEST("<AA|AA>", "AA", "BBB", "<BBB|BBB>");
  TEST("<AAAA>", "AA", "B", "<BB>");
  TEST("<AAAA>", "AA", "BB", "<BBBB>");
  TEST("<AAAA>", "AA", "BBB", "<BBBBBB>");
  TEST("AAAA>", "AA", "B", "BB>");
  TEST("AAAA>", "AA", "BB", "BBBB>");
  TEST("AAAA>", "AA", "BBB", "BBBBBB>");
  TEST("<AAAA", "AA", "B", "<BB");
  TEST("<AAAA", "AA", "BB", "<BBBB");
  TEST("<AAAA", "AA", "BBB", "<BBBBBB");
  alarm(1); /* no infinite loop */
  TEST("A", "A", "A", "A");
  TEST("AA", "A", "A", "AA");
  alarm(0);

Signed-off-by: Philipp Hahn <hahn@univention.de>
2012-02-01 17:02:45 -07:00
Eric Blake
0aaf88e800 network: fix testsuite regression
I slightly botched commit be9fb5a - I converted '--arg=value' to
'--arg value', which has no semantic change, but did trip up the
testsuite.

* src/network/bridge_driver.c (networkBuildDnsmasqArgv): Restore
expected output.
2012-02-01 16:42:33 -07:00
Philipp Hahn
08f680ee1b tests: virnettlscontexttest needs gnutls-2.6.0
virnettlscontexttest uses gnutls_x509_crt_set_subject_alt_name() and
GNUTLS_FSAN_APPEND, which - according to
<http://www.gnu.org/software/gnutls/manual/gnutls.html> - are only
available since 2.6.0.

Since libvirt still works fine with gnutls-1.0.25 from RHEL5, only
enable the test when the version of GNUTLS is at least 2.6.0.

Signed-off-by: Philipp Hahn <hahn@univention.de>
Signed-off-by: Eric Blake <eblake@redhat.com>
2012-02-01 16:36:13 -07:00
Philipp Hahn
184fc07fda xen_xs: name xendConfigVersion magic numbers
libvirt supports 4 different versions of the user-land XenD daemon. When
queried the daemon just returns its generation number, which is hard to
match to the version of the Xen tools.

Replace the magic generation numbers by named enum definitions to
improve code readability.

Signed-off-by: Philipp Hahn <hahn@univention.de>
2012-02-01 16:28:17 -07:00
Alex Jia
be9fb5affc network: Avoid memory leaks on networkBuildDnsmasqArgv
Detected by valgrind. Leaks introduced in commit 973af236.

* src/network/bridge_driver.c: fix memory leaks on failure and successful path.

* How to reproduce?
% make -C tests check TESTS=networkxml2argvtest
% cd tests && valgrind -v --leak-check=full ./networkxml2argvtest

* Actual result:

==2226== 3 bytes in 1 blocks are definitely lost in loss record 1 of 24
==2226==    at 0x4A05FDE: malloc (vg_replace_malloc.c:236)
==2226==    by 0x39CF0FEDE7: __vasprintf_chk (in /lib64/libc-2.12.so)
==2226==    by 0x41DFF7: virVasprintf (stdio2.h:199)
==2226==    by 0x41E0B7: virAsprintf (util.c:1695)
==2226==    by 0x41A2D9: networkBuildDhcpDaemonCommandLine (bridge_driver.c:545)
==2226==    by 0x4145C8: testCompareXMLToArgvHelper (networkxml2argvtest.c:47)
==2226==    by 0x4156A1: virtTestRun (testutils.c:141)
==2226==    by 0x414332: mymain (networkxml2argvtest.c:123)
==2226==    by 0x414D97: virtTestMain (testutils.c:696)
==2226==    by 0x39CF01ECDC: (below main) (in /lib64/libc-2.12.so)
==2226==
==2226== 3 bytes in 1 blocks are definitely lost in loss record 2 of 24
==2226==    at 0x4A05FDE: malloc (vg_replace_malloc.c:236)
==2226==    by 0x39CF0FEDE7: __vasprintf_chk (in /lib64/libc-2.12.so)
==2226==    by 0x41DFF7: virVasprintf (stdio2.h:199)
==2226==    by 0x41E0B7: virAsprintf (util.c:1695)
==2226==    by 0x41A307: networkBuildDhcpDaemonCommandLine (bridge_driver.c:551)
==2226==    by 0x4145C8: testCompareXMLToArgvHelper (networkxml2argvtest.c:47)
==2226==    by 0x4156A1: virtTestRun (testutils.c:141)
==2226==    by 0x414332: mymain (networkxml2argvtest.c:123)
==2226==    by 0x414D97: virtTestMain (testutils.c:696)
==2226==    by 0x39CF01ECDC: (below main) (in /lib64/libc-2.12.so)
==2226==
==2226== 5 bytes in 1 blocks are definitely lost in loss record 4 of 24
==2226==    at 0x4A05FDE: malloc (vg_replace_malloc.c:236)
==2226==    by 0x39CF0FEDE7: __vasprintf_chk (in /lib64/libc-2.12.so)
==2226==    by 0x41DFF7: virVasprintf (stdio2.h:199)
==2226==    by 0x41E0B7: virAsprintf (util.c:1695)
==2226==    by 0x41A2AB: networkBuildDhcpDaemonCommandLine (bridge_driver.c:539)
==2226==    by 0x4145C8: testCompareXMLToArgvHelper (networkxml2argvtest.c:47)
==2226==    by 0x4156A1: virtTestRun (testutils.c:141)
==2226==    by 0x414332: mymain (networkxml2argvtest.c:123)
==2226==    by 0x414D97: virtTestMain (testutils.c:696)
==2226==    by 0x39CF01ECDC: (below main) (in /lib64/libc-2.12.so)
==2226==
==2226== LEAK SUMMARY:
==2226==    definitely lost: 11 bytes in 3 blocks

Signed-off-by: Alex Jia <ajia@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2012-02-01 16:16:59 -07:00
Eric Blake
9f902a2ed5 block rebase: initial qemu implementation
This is a trivial implementation, which works with the current
released qemu 1.0 with backports of preliminary block pull but
no partial rebase.  Future patches will update the monitor handling
to support an optional parameter for partial rebase; but as qemu
1.1 is unreleased, it can be in later patches, designed to be
backported on top of the supported API.

* src/qemu/qemu_driver.c (qemuDomainBlockJobImpl): Add parameter,
and adjust callers.  Drop redundant check.
(qemuDomainBlockPull): Move guts...
(qemuDomainBlockRebase): ...to new function.
2012-02-01 15:31:44 -07:00
Eric Blake
8ee8fd6555 block rebase: wire up remote protocol
Nice and simple.

* src/remote/remote_protocol.x (REMOTE_PROC_DOMAIN_BLOCK_REBASE):
New RPC.
* src/remote/remote_driver.c (remote_driver): Wire it up.
* src/remote_protocol-structs: Regenerate.
2012-02-01 15:27:39 -07:00
Eric Blake
99fd69c3de block rebase: add new API virDomainBlockRebase
Qemu is adding the ability to do a partial rebase.  That is, given:

base <- intermediate <- current

virDomainBlockPull will produce:

current

but qemu now has the ability to leave base in the chain, to produce:

base <- current

Note that current qemu can only do a forward merge, and only with
the current image as the destination, which is fully described by
this API without flags.  But in the future, it may be possible to
enhance this API for additional scenarios by using flags:

Merging the current image back into a previous image (that is,
undoing a live snapshot), could be done by passing base as the
destination and flags with a bit requesting a backward merge.

Merging any other part of the image chain, whether forwards (the
backing image contents are pulled into the newer file) or backwards
(the deltas recorded in the newer file are merged back into the
backing file), could also be done by passing a new flag that says
that base should be treated as an XML snippet rather than an
absolute path name, where the XML could then supply the additional
instructions of which part of the image chain is being merged into
any other part.

* include/libvirt/libvirt.h.in (virDomainBlockRebase): New
declaration.
* src/libvirt.c (virDomainBlockRebase): Implement it.
* src/libvirt_public.syms (LIBVIRT_0.9.10): Export it.
* src/driver.h (virDrvDomainBlockRebase): New driver callback.
* src/rpc/gendispatch.pl (long_legacy): Add exemption.
* docs/apibuild.py (long_legacy_functions): Likewise.
2012-02-01 15:21:56 -07:00
Peter Krempa
21d13ddc5d qemu: Add support for virDomainGetMetadata and virDomainSetMetadata
This patch adds support for the new api into the qemu driver to support
modification and retrieval of domain description and title. This patch
does not add support for modifying the <metadata> element.
2012-02-01 15:19:28 -07:00
Peter Krempa
fad5cd2108 virsh: Add support for modifying domain description and titles
This patch adds a new command "desc" to show and modify titles and
description for the domains using the new API.

This patch also adds a new flag for the "list" command to show titles in
the domain list, to allow easy identification of VMs by storing a short
description.

Example:
virsh # list --title
 Id Name                 State      Title
 -----------------------------------------------
   0 Domain-0             running    Mailserver 1
   2 fedora               paused
2012-02-01 15:12:53 -07:00
Peter Krempa
c471e55e10 API: Add api to set and get domain metadata
This patch adds API to modify domain metadata for running and stopped
domains. The api supports changing description, title as well as the
newly added <metadata> element. The API has support for storing data in
the metadata element using xml namespaces.

* include/libvirt/libvirt.h.in
* src/libvirt_public.syms
        - add function headers
        - add enum to select metadata to operate on
        - export functions
* src/libvirt.c
        - add public api implementation
* src/driver.h
        - add driver support
* src/remote/remote_driver.c
* src/remote/remote_protocol.x
        - wire up the remote protocol
* include/libvirt/virterror.h
* src/util/virterror.c
        - add a new error message note that metadata for domain are
        missing
2012-02-01 15:01:38 -07:00
Peter Krempa
b79ba8382e xml: Add element <title> to allow short description of domains
This patch adds a new element <title> to the domain XML. This attribute
can hold a short title defined by the user to ease the identification of
domains. The title may not contain newlines and should be reasonably short.

 *docs/formatdomain.html.in
 *docs/schemas/domaincommon.rng
        - add schema grammar for the new element and documentation
  *src/conf/domain_conf.c
  *src/conf/domain_conf.h
        - add field to hold the new attribute
        - add code to parse and create XML with the new attribute
2012-02-01 14:41:13 -07:00
Laine Stump
26e9fdc0bc build: add missing virStorageFileResize to libvirt_private.syms
This was forgotten when the function was originally written (not
noticed because it wasn't used at the time). It's required for
proper compilation with modules enabled after applying the recent
virStorageVolResize patches.
2012-02-01 16:14:46 -05:00
Laine Stump
f594cddaf2 build: add missing virCommandAddCap to libvirt_private.syms
This was forgotten when the function was initially written (not
noticed because it wasn't used at the time). It's required for proper
compilation with modules enabled after applying the recent rawio
patches.
2012-02-01 16:14:46 -05:00
Jiri Denemark
1d7086c2ed qemu: Silent bogus warning about unitialized variable
GCC complaints about uninitialized use of len, which however is only
used when errors != NULL and in that case len is always initialized.
It's trivial to silence this by always initializing len.
2012-02-01 16:13:25 +01:00
Michal Privoznik
d7320e799f daemon: Allow overriding NOFILES ulimit for the daemon as well
One of my latest patches (d8db0f9690) created support for setting
the limit for the maximum of opened files by qemu user. However,
since libvirtd keeps one FD opened per domain (well, for qemu at least)
it will likely hit this limit on huge scenarios.
2012-02-01 16:04:30 +01:00
Jiri Denemark
7bceae0fa6 python: Add binding for virDomainGetDiskErrors 2012-02-01 10:59:27 +01:00
Jiri Denemark
e08d2a9ad8 virsh: Implement domblkerror command
This command lists all disk devices with errors
2012-02-01 10:56:45 +01:00
Jiri Denemark
e17e3ed6aa qemu: Implement virDomainGetDiskErrors 2012-02-01 10:54:15 +01:00
Jiri Denemark
342fc56f58 Remote protocol for virDomainGetDiskErrors 2012-02-01 10:50:58 +01:00
Jiri Denemark
02af3e13b2 virDomainGetDiskErrors public API
We already provide ways to detect when a domain has been paused as a
result of I/O error, but there was no way of getting the exact error or
even the device that experienced it.  This new API may be used for both.
2012-02-01 10:42:16 +01:00
Alex Jia
a89bb7d75a python: correct a copy-paste error
* python/libvirt-override-virStream.py: fix a copy-paste error in sendAll().

Signed-off-by: Alex Jia <ajia@redhat.com>
2012-02-01 10:26:57 +01:00
Michal Privoznik
7b0a740542 command: Fix ATTRIBUTE_UNUSED on virSetCapabilities
If we are building not on a WIN32 architecture and without HAVE_CAPNG
virSetCapabilities has unused argument and virClearCapabilities
is unused as well.
2012-02-01 10:02:30 +01:00