Commit Graph

7378 Commits

Author SHA1 Message Date
Eric Blake
8fcbc0c63c remote: remove special case for getting version
The on-the-wire protocol is identical; XDR guarantees that
both 'hyper' and 'unsigned hyper' are transmitted as 8 bytes.

* src/remote/remote_protocol.x (remote_get_version_ret)
(remote_get_lib_version_ret): Match public API.
* daemon/remote_generator.pl: Drop special case.
* src/remote_protocol-structs: Reflect updated type.
2011-05-18 15:25:03 -06:00
Eric Blake
7647422a8c build: silence clang false positive
Clang couldn't quite see that the same condition of
(flags & VIR_DOMAIN_MEM_CONFIG) is used twice, such that
the second block is guaranteed that def was assigned in
the first block.

* src/libxl/libxl_driver.c (libxlDomainSetMemoryFlags): Add a hint
for clang.
2011-05-18 12:47:46 -06:00
Eric Blake
d218344e6c virsh: optimize creation of default connection
Ramon de Carvalho Valle reported a problem with:
virsh connect qemu:///system
as a non-root user.  The real root problem appears to be a regression
in libvirtd being auto-started on the default qemu:///session URI;
however, the symptom points to an independent flaw in virsh - we
shouldn't be wasting efforts on making a connection if we aren't going
to be using that connection.  Fixing virsh avoids Ramon's issue, while
I work in the meantime to fix the real libvirtd regression.

This patch looks big, but that's because 'gcc -Wmissing-field-initializers'
gets triggered by './autobuild.sh --enable-compile-warnings=error', so I
had to add 0 initialization to everyone (rather than my preference of
just adding the non-zero flags to virshCmds and to cmdConnect).

Meanwhile, if you use 'virsh -c URI', the connection must succeed; this
patch _only_ optimizes the default connection to be deferred to a later
point where we know if a particular command to be run needs a connection.

* tools/virsh.c (VSH_CMD_FLAG_NOCONNECT): New flag.
(vshCmdDef): Add new flags field.
(vshCommandRun): Honor new flag.
(domManagementCmds, domMonitoringCmds, storagePoolCmds)
(storageVolCmds, networkCmds, nodedevCmds, ifaceCmds)
(nwfilterCmds, secretCmds, virshCmds, snapshotCmds)
(hostAndHypervisorCmds): Populate new field.
(vshReconnect): Don't warn on initial connection.
2011-05-18 12:47:46 -06:00
Matthias Bolte
4d2a189646 Improve invalid argument checks for the public API 2011-05-18 18:20:47 +02:00
Matthias Bolte
191e1ec65c Clarify that virDomainGet(Memory|Blkio)Parameters doesn't support subsets
Improve invalid argument checks in the size query case. The drivers already
relied on this unchecked behavior.

Relax the implementation of virDomainGet(Memory|Blkio)MemoryParameters
in the drivers and allow to pass more memory than necessary for all
parameters.
2011-05-18 18:20:47 +02:00
Matthias Bolte
8a3b74e770 Clarify that virDomainSet(Memory|Blkio)Parameters can take parameter subsets 2011-05-18 18:20:47 +02:00
Matthias Bolte
d870ec367d Clarify that virDomainSetSchedulerParameters(Flags) can take subsets
Add invalid argument checks for params and nparams to the public API
and remove them from the drivers (e.g. xend).

Add subset handling to libxl and test drivers.
2011-05-18 18:20:47 +02:00
Matthias Bolte
e430c0d0c6 Clarify the semantic of virDomainGetSchedulerParameters arguments
params and nparams are essential and cannot be NULL. Check this in
libvirt.c and remove redundant checks from the drivers (e.g. xend).

Instead of enforcing that nparams must point to exact same value as
returned by virDomainGetSchedulerType relax this to a lower bound
check. This is what some drivers (e.g. xen hypervisor and esx)
already did. Other drivers (e.g. xend) didn't check nparams at all
and assumed that there is enough space in params.

Unify the behavior in all drivers to a lower bound check and update
nparams to the number of valid values in params on success.
2011-05-18 18:20:47 +02:00
Matthias Bolte
7b2f20b10b Clarify semantic of nparams argument of virDomainGetSchedulerType
Some drivers assumed it can be NULL (e.g. qemu and lxc) and check it
before assigning to it, other drivers assumed it must be non-NULL
(e.g. test and esx) and just assigned to it.

Unify this to nparams being optional and document it.
2011-05-18 18:20:47 +02:00
Cole Robinson
ed97be6176 Fix messages using VIR_ERR_XML_ERROR
This error code has existed since the dawn of time, yet the messages it
generates are almost universally busted. Here's a small sampling:

src/conf/domain_conf.c:4889 : XML description for missing root element is not well formed or invalid
src/conf/domain_conf.c:4951 : XML description for unknown device type is not well formed or invalid
src/conf/domain_conf.c:5460 : XML description for maximum vcpus must be an integer is not well formed or invalid
src/conf/domain_conf.c:5468 : XML description for invalid maxvcpus %(count)lu is not well formed or invalid

Fix up the error code to instead be

XML error: <msg>

Adjust the few locations that were using the original correctly (or shouldn't
have been using the error code at all).

v2:
    Fix wording of error code without a passed argument
2011-05-18 11:18:09 -04:00
Eric Blake
824dcaff78 libvirt.h: consolidate typed parameter handling
The new type is identical to the three old types that it replaces,
and by creating a common type, this allows future patches to share
common code that manipulates typed parameters.

This change is backwards-compatible in API (recompilation works
without any edits) and ABI (an older client that has not been
recompiled uses the same layout) for code using only public
names; only code using private names (those beginning with _)
will have to adapt.

* include/libvirt/libvirt.h.in (virTypedParameterType)
(VIR_TYPED_PARAM_FIELD_LENGTH, _virTypedParameter): New enum,
macro, and type.
(virSchedParameter, virBlkioParameter, virMemoryParameter):
Rewrite in terms of a common type, while keeping all old public
names for backwards compatibility.
(struct _virSchedParameter, struct _virBlkioParameter)
(struct _virMemoryParameter): Delete - these are private names.
* python/generator.py (enum): Cope with the refactoring.
2011-05-18 08:40:28 -06:00
Eric Blake
f3cfc99e79 build: update to latest gnulib
* .gnulib: Update, for bootstrap and other fixes.
* bootstrap: Resynchronize with gnulib.
2011-05-18 08:31:33 -06:00
Dirk Herrendorefer
5252a06d65 Add support for 'passthru' mode for direct network interfaces
starting with kernel 2.6.38 macvtap supports a 'passthru' mode for
attaching virtual functions of a SRIOV capable network card directly to a VM.
This patch adds the capability to configure such a device.

Signed-off-by: Dirk Herrendoerfer <d.herrendoerfer@herrendoerfer.name>
2011-05-18 08:15:08 -06:00
Michal Privoznik
45b28f7c4f qemu: fix typo in spice migration code
This typo caused XPath returning improper value and thus not
working spice after migration.
2011-05-18 11:57:07 +02:00
Hu Tao
42af244347 virsh: add parameters --live, --config and --current to cmd schedinfo
This enables user to modify cpu.shares even when domain is inactive.
2011-05-17 10:52:16 -06:00
Hu Tao
bb9f1bbf4a remote: introduce remoteSetSchedulerParametersFlags
support for virDomainSetSchedulerParametersFlags of remote driver.
2011-05-17 10:38:30 -06:00
Hu Tao
a9189e2c41 qemu: introduce qemuSetSchedulerParametersFlags
Support for virDomainSetSchedulerParametersFlags of qemu driver.
2011-05-17 10:17:53 -06:00
Eric Blake
33645d44f9 sched: adjust parameter values to make current = 0
See virDomainMemoryModFlags for precedent.

* include/libvirt/libvirt.h.in (virDomainSchedParameterFlags): Set
CURRENT as a synonym to 0.
2011-05-17 10:02:07 -06:00
Hu Tao
d4b8a35755 introduce virDomainSetSchedulerParametersFlags
This new function allows aditional flags to be passed into from
the virsh command line.
2011-05-17 09:37:46 -06:00
Eric Blake
d4982b86d2 build: drop unused <sys/syslimits.h> header
<sys/syslimits.h> is not standardized, so portable programs should
not need to rely on it.  If there really is something that we need
where <sys/syslimits.h> provided the limit but <limits.h> did not,
then that would be a candidate for fixing in gnulib.  But this patch
did not turn up any compilation failures on Linux.

* src/internal.h (includes): Drop unused header.
* daemon/libvirtd.h (includes): Likewise.
* configure.ac (AC_CHECK_HEADERS): Likewise.
Based on a report by Matthias Bolte.
2011-05-17 09:34:11 -06:00
Daniel P. Berrange
00e74007cb Fix prototype of virRun for Win32 targets
* src/util/util.c: Fix virRun prototype
2011-05-17 16:23:22 +01:00
Eric Blake
b3918fabda build: tolerate unlimited group size
POSIX allows sysconf(_SC_GETPW_R_SIZE_MAX) to return -1 if there
is no fixed limit, and requires ERANGE errors to track real size.
Model our behavior after the example in POSIX itself:
http://pubs.opengroup.org/onlinepubs/9699919799/functions/getpwuid_r.html

Also, on error for get*_r functions, errno is undefined, and the
real error was the return value.

* src/util/util.c (virGetUserEnt, virGetUserID, virGetGroupID)
(virSetUIDGID):  Cope with sysconf failure or too small buffer.
Reported by Matthias Bolte.
2011-05-17 09:17:46 -06:00
Eric Blake
00fa155578 openvz: fix logic bug in previous patch
We want to free names on failure, not on success.

* src/openvz/openvz_driver.c (openvzListDefinedDomains): Use
correct condition.
2011-05-17 09:12:16 -06:00
Cole Robinson
1ccc16c603 storage_backend: Convert virRunWithHook usage to virCommand
virRunWithHook is now unused, so we can drop it. Tested w/ raw + qcow2
volume creation and copying.

v2:
    Use opaque data to skip hook second time around
    Simply command building

v3:
    Drop explicit FindFileInPath
2011-05-17 10:16:38 -04:00
Cole Robinson
51622f21a2 storage_backend: Fix error reporting with regex helper
Some clients overwrite the error from the regex helper, or do half-baked
error reporting with the exitstatus.
2011-05-17 10:16:38 -04:00
Cole Robinson
be1965be66 storage: Covert regex helpers to virCommand
v2:
    Simplify command creation
    Add a missing virCommandFree
    Use virCommand auto-cleanup for async process
2011-05-17 10:16:38 -04:00
Cole Robinson
0c0ed675de openvz: Convert virExec usage to virCommand
v2:
    Use virCommand's autocleanup

v3:
    Don't free 'names' on success
2011-05-17 10:16:38 -04:00
Cole Robinson
1fcafb02e2 storage: iscsi: Convert virExec to virCommand
v2:
    Use virCommand auto-cleanup
2011-05-17 10:11:09 -04:00
Matthias Bolte
5b77f1d5dc Fix error reporting in stream creation code
virStreamNew needs to dispatch the error that virGetStream reports
on failure.

remoteCreateClientStream can fail due to virStreamNew or due to
VIR_ALLOC. Report OOM error for VIR_ALLOC failure to report errors
in all error cases.

Remove OOM error reporting from remoteCreateClientStream callers.
2011-05-17 14:54:54 +02:00
Matthias Bolte
55cb8f5baa remote generator, client: Add more special case handling
For virDomainDestroy and virDrvSupportsFeature.
2011-05-17 14:52:23 +02:00
Matthias Bolte
0882f7a200 remote generator, client: Handle functions that return an optional string 2011-05-17 14:48:08 +02:00
Matthias Bolte
483ed20ae6 esx: Simplify some esxVI_Boolean to bool 2011-05-17 13:20:49 +02:00
Matthias Bolte
93f31b073d esx: Convert autoAnswer from esxVI_Boolean to a simple bool
Just true/false is good enough for it. Also use it directly from the
parsed URI instead of caching it in esxPrivate.
2011-05-17 13:16:48 +02:00
Matthias Bolte
6bf31327c6 esx: Fix race condition in esxVI_EnsureSession
When the session has expired then multiple threads can race while
reestablishing it.

This race condition is not that critical as it requires a special usage
pattern to be triggered. It can only happen when an application doesn't
do API calls for quite some time (the session expires after 30 min
inactivity) and then multiple threads doing simultaneous API calls and
end up doing simultaneous calls to esxVI_EnsureSession.
2011-05-17 13:11:32 +02:00
Jiri Denemark
c256542e76 virsh: Correctly initialize libvirt
virsh didn't call virInitialize(), which (among other things)
initializes virLastErr thread local variable. As a result of that, virsh
could just segfault in virEventRegisterDefaultImpl() since that is the
first call that touches (resets) virLastErr.

I have no idea what lucky coincidence made this bug visible but I was
able to reproduce it in 100% cases but only in one specific environment
which included building in sandbox.
2011-05-17 12:37:30 +02:00
Matthias Bolte
a39376016a esx: Whitespace cleanup in the generator
Break long lines and change spacing of keyword arguments to match
Python style standards better.

No functional change included.
2011-05-17 09:44:37 +02:00
Daniel P. Berrange
66f57a5041 Fix leak of mime type string in screenshot dispatcher
* daemon/remote.c: Free mime string
2011-05-16 20:30:17 +01:00
Daniel P. Berrange
55052494dc Remove obsolete remoteDispatchOOMError method
No new code should be using remoteDispatchOOMError()

* daemon/dispatch.c, daemon/dispatch.h: Remove remoteDispatchOOMError
2011-05-16 20:30:10 +01:00
Matthias Bolte
a6946ea66e esx: Change some alignments in the input file
No functional change included.
2011-05-16 20:22:50 +02:00
Matthias Bolte
1f6fc82bf3 esx: Change generated method parameter autobinding
Instead of specifying the type of the managed object directly specify
the ServiceContent member name. This way the mapping dictionary can be
removed.
2011-05-16 20:21:10 +02:00
Daniel P. Berrange
9cd16c0aa9 Fix remote dispatcher for screenshot command
* daemon/remote.c: Update screenshot dispatcher to follow
  standard practice
2011-05-16 18:27:15 +01:00
Matthias Bolte
33a5f8ca82 virsh: Report an error when virGetUserDirectory fails
Otherwise virsh shows the interactive greeting and then silently exists
instead of entering interactive mode.
2011-05-16 18:40:04 +02:00
Eric Blake
1d8bcb45ca maint: mark more perl scripts executable
* src/remote/rpcgen_fix.pl: Add executable bit.
* tests/oomtrace.pl: Likewise.
2011-05-16 10:12:21 -06:00
Eric Blake
aceb31aa80 maint: mark perl script executable
* docs/hvsupport.pl: Add execute bit.
2011-05-16 10:09:36 -06:00
Eric Blake
372ad899ba maint: ignore generated file
* .gitignore: Ignore recently added file.
2011-05-16 09:36:59 -06:00
Daniel P. Berrange
6e7c56f8c9 Add missing initialization to 'ret' in qemu migration
* src/qemu/qemu_migration.c: Add missing 'ret' initializer
  in qemuMigrationCookieXMLParseStr
2011-05-16 16:11:10 +01:00
Daniel P. Berrange
91e5c3dc7c Disable virCommandExec on Win32
Mingw execve() has a broken signature. Disable this
function until gnulib fixes the signature, since we
don't really need this on Win32 anyway.

* src/util/command.c: Disable virCommandExec on Win32
2011-05-16 15:20:48 +01:00
Daniel P. Berrange
7bf733584a Improve error message when XDR marshalling fails
When failing to marshall an XDR message, include the
full program/version/status/proc/type info, to allow
easier debugging & diagnosis of the problem.

* src/remote/remote_driver.c: Improve error when marshalling
  fails
2011-05-16 15:18:22 +01:00
Daniel P. Berrange
1d916a60a7 Run tunnelled migration IO in separate thread
By running the doTunnelSendAll code in a separate thread, the
main thread can do qemuMigrationWaitForCompletion as with
normal migration. This in turn ensures that job signals work
correctly and that progress monitoring can be done

* src/qemu/qemu_migration.c: Run tunnelled migration in
  separate thread
2011-05-16 15:18:22 +01:00
Daniel P. Berrange
5a6ca96a01 Don't overwrite error when stream send fails
virStreamSend already sets an error message, so don't
overwrite it

* src/qemu/qemu_migration.c: Remove bogus error report
2011-05-16 15:18:22 +01:00