Commit Graph

146 Commits

Author SHA1 Message Date
Daniel P. Berrange
9b0af09240 Remove (nearly) all use of getuid()/getgid()
Most of the usage of getuid()/getgid() is in cases where we are
considering what privileges we have. As such the code should be
using the effective IDs, not real IDs.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-10-21 14:03:52 +01:00
Michal Privoznik
2d670cd42b qemuMonitorTestFree: Join worker thread
Join the worker thread no matter if it is running or zombie already.
With current implementation the thread is joined iff @running is true.
However, when worker executes the last line, @running is set to false.
Hence qemuMonitorTestFree() won't join it (and free resources) even
though we can clearly see worker has run (nobody else sets @running =
false).

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2013-10-03 15:26:09 +02:00
Michal Privoznik
bd958586ec qemuMonitorTest: Make check for monitor command match optional
In a few cases we might want to not care if monitor command executed on
the mocked monitor matches the one we have reply for. Sounds crazy, but
if we just want monitor to return certain values (e.g. read from a file)
there is no need to care about command match.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2013-10-01 10:48:47 +02:00
Michal Privoznik
0badd8a43d tests: Learn qemuMonitorTestNew optional greeting
Currently, when creating a new mocked monitor, the greeting can't be
chosen. This is crucial for next patches, because some info as qemu
version is obtained in the greeting message.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2013-10-01 10:48:47 +02:00
Daniel P. Berrange
0bbeafc768 Avoid uninitialized data in qemuMonitorTestNew
The virDomainChrSourceDef variable should be memset to
0, so that the cleanup block does not free uninitialized
data on OOM.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-09-25 18:12:09 +01:00
Daniel P. Berrange
9129f9b3f1 Avoid double free in qemuMonitorCommonTestInit on OOM
The qemuMonitorCommonTestInit method did not allocate the
test object, so it should not free it upon failure. Doing
so causes a double free with the caller.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-09-25 18:12:09 +01:00
Daniel P. Berrange
92f8c3fc71 Fix leak on OOM in qemuMonitorCommonTestNew
Don't leak the path string in qemuMonitorCommonTestNew if
an OOM occurs.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-09-25 18:12:09 +01:00
Jiri Denemark
68d6f66e6e qemuhotplugtest: Add support for DEVICE_DELETED event 2013-08-26 16:09:55 +02:00
Jiri Denemark
201f01ab97 tests: Add support for passing driver to qemu monitor
The driver is then passed to monitor event handlers.
2013-08-26 16:09:55 +02:00
Jiri Denemark
a950b4f91d tests: Add support for passing vm to qemu monitor
Some tests need the monitor to operate on an already existing VM object
rather than on a new mock-up the monitor test normally creates.
2013-08-26 16:09:55 +02:00
Jiri Denemark
809ee6bad4 qemu: Avoid using global qemu_driver in event handlers
We will have to pass a mock-up of the driver when testing monitor
events.
2013-08-26 16:09:54 +02:00
Peter Krempa
8f95d5d84c qemumonitortestutils: Don't skip va_end() on error path
When allocation of memory failed the error path didn't call va_end()
causing a coverity failure.

Reported by John Ferlan.
2013-08-02 12:28:58 +02:00
Peter Krempa
e32f6e778b qemumonitortestutils: Add the ability to check arguments of commands
This patch adds helpers that allow to check for argument values in
commands sent to the monitor.
2013-07-31 14:25:43 +02:00
Peter Krempa
69441df4d0 qemumonitortestutils: Improve error reporting from mock qemu monitor
Use the JSON error messages to report errors back to the caller in
addition to erroring out. The error reported from the event loop from
the mock function of the monitor was later overwritten by the call to
the monitor/agent interaction API. This will also allow testing of error
reporting.
2013-07-31 14:25:43 +02:00
Peter Krempa
659fe6d2db qemumonitortestutils: Add instrumentation for guest agent testing
Add helper functions to open guest agent connections and a handler for
replying to the "guest-sync" command.
2013-07-31 14:25:43 +02:00
Peter Krempa
f6bb917e6a qemumonitortestutils: Split lines on \n instead of \r\n
The normal monitor uses windows line endings, where the agent monitor
uses only newlines. Change this to tolerate both approaches and allow to
use the utilities for guest agent tests.
2013-07-31 14:25:43 +02:00
Peter Krempa
5467cbef4b qemumonitortestutils: Refactor the test helpers to allow reuse
Refactor the test helpers to allow adding callbacks to verify the
monitor responses instead of simple command name checking and clean up
various parts to prepare for adding guest agent tests.
2013-07-31 14:25:43 +02:00
Peter Krempa
3383480430 qemumonitortestutils: Split up creation of the test to allow reuse
The instrumentation for the monitor test can be hacked for qemu agent
testing. Split out the monitor specific stuff to allow using the code in
guest agent tests in the future.
2013-07-31 14:25:43 +02:00
Peter Krempa
a63a7a5af9 qemumonitortestutils: Don't crash on non fully initialized test
The qemumonitorjsontest crashed when one of the initialization steps
done before starting the worker thread failed. This patch fixes this by
trying to pthread_join() the thread only after it was created.
2013-07-31 14:25:43 +02:00
Peter Krempa
5bf61f3818 qemumonitortestutils: remove multiline function calls 2013-07-31 14:25:43 +02:00
Peter Krempa
65f3f9dd78 qemumonitortestutils: Use VIR_DELETE_ELEMENT and VIR_APPEND_ELEMENT
Simplify the code using the existing helpers instead of open coding the
same functionality.
2013-07-31 14:25:43 +02:00
Peter Krempa
d24dbdd0a2 qemumonitortestutils: Use consistent header style and line spacing 2013-07-31 14:25:43 +02:00
Michal Privoznik
3ea84b9548 Adapt to VIR_ALLOC and virAsprintf in tests/* 2013-07-10 11:07:33 +02:00
Osier Yang
bb3ea8416b tests/: Remove the whitespace before ";" 2013-05-21 23:41:45 +08:00
Eric Blake
764bb5e5aa qemu: use bool in monitor struct
Follows on the heels of other bool cleanups, such as commit 93002b98.

* src/qemu/qemu_monitor.h (qemuMonitorOpen, qemuMonitorOpenFD):
Update json parameter type.
* src/qemu/qemu_monitor.c (qemuMonitorOpen, qemuMonitorOpenFD):
Likewise.
(_qemuMonitor): Adjust field type.
* src/qemu/qemu_domain.h (_qemuDomainObjPrivate): Likewise.
* src/qemu/qemu_domain.c (qemuDomainObjPrivateXMLParse): Adjust
client.
* src/qemu/qemu_process.c (qemuProcessStart): Likewise.
* tests/qemumonitortestutils.c (qemuMonitorTestNew): Likewise.

Signed-off-by: Eric Blake <eblake@redhat.com>
2013-05-13 15:15:54 -06:00
Michal Privoznik
e60b9783e1 Adapt to VIR_STRDUP and VIR_STRNDUP in tests/* 2013-05-10 11:54:29 +02:00
Michal Privoznik
7c9a2d88cd virutil: Move string related functions to virstring.c
The source code base needs to be adapted as well. Some files
include virutil.h just for the string related functions (here,
the include is substituted to match the new file), some include
virutil.h without any need (here, the include is removed), and
some require both.
2013-05-02 16:56:55 +02:00
Eric Blake
1bf25ba249 docs: fix usage of 'onto'
http://www.uhv.edu/ac/newsletters/writing/grammartip2009.07.01.htm
(and several other sites) give hints that 'onto' is best used if
you can also add 'up' just before it and still make sense. In many
cases in the code base, we really want the two-word form, or even
a simplification to just 'on' or 'to'.

* docs/hacking.html.in: Use correct 'on to'.
* python/libvirt-override.c: Likewise.
* src/lxc/lxc_controller.c: Likewise.
* src/util/virpci.c: Likewise.
* daemon/THREADS.txt: Use simpler 'on'.
* docs/formatdomain.html.in: Better usage.
* docs/internals/rpc.html.in: Likewise.
* src/conf/domain_event.c: Likewise.
* src/rpc/virnetclient.c: Likewise.
* tests/qemumonitortestutils.c: Likewise.
* HACKING: Regenerate.

Signed-off-by: Eric Blake <eblake@redhat.com>
2013-04-19 14:31:16 -06:00
Peter Krempa
e84b19316a maint: Rename xmlconf to xmlopt and virDomainXMLConfig to virDomainXMLOption
This patch is the result of running:

for i in $(git ls-files | grep -v html | grep -v \.po$ ); do
  sed -i -e "s/virDomainXMLConf/virDomainXMLOption/g" -e "s/xmlconf/xmlopt/g" $i
done

and a few manual tweaks.
2013-04-04 22:18:56 +02:00
Peter Krempa
27cf98e2d1 virCaps: conf: start splitting out irrelevat data
The virCaps structure gathered a ton of irrelevant data over time that.
The original reason is that it was propagated to the XML parser
functions.

This patch aims to create a new data structure virDomainXMLConf that
will contain immutable data that are used by the XML parser. This will
allow two things we need:

1) Get rid of the stuff from virCaps

2) Allow us to add callbacks to check and add driver specific stuff
after domain XML is parsed.

This first attempt removes pointers to private data allocation functions
to this new structure and update all callers and function that require
them.
2013-03-13 09:27:14 +01:00
Eric Blake
848a3b1d5b tests: avoid segfault if json monitor not present
On a machine without yajl headers, I was seeing random segfaults
from qemumonitorjsontest (about 90% of the runs on my particular
machine).  The segfault was inside virClassIsDerivedFrom, which
points to a case of a race leading to unreferencing a stale
pointer to an object that had already been freed.  I also noticed
that if I got the segfault, I was seeing messages such as:

2013-02-22 16:12:37.504+0000: 19833: error : virNetSocketWriteWire:1361 : Cannot write data: Bad file descriptor

which is also evidence of deferencing a stale pointer.  I traced it
to a race where qemuMonitorTestIO could execute late, after the
main thread had already called qemuMonitorTestFree and called
virNetSocketClose(test->client) but not clearing it out to NULL.
Sure enough, after test->client has been closed, fd is -1, which
causes an attempt to write to the socket to fail, which in turn
triggers the error code of qemuMonitorTestIO that tries to re-close
test->client.

* tests/qemumonitortestutils.c (qemuMonitorTestIO): Don't attempt
to free client again if test already quit.
2013-02-25 17:37:14 -07:00
John Ferlan
9442d03c48 qemumonitortestutils: Resolve resource leaks found by Valgrind
When Valgrind runs the 'qemumonitorjsontest' it would claim that the
thread created is leaked. That's because the virThreadJoin won't get
called due to the 'running' flag being cleared.  In order to avoid that,
call virThreadJoin unconditionally at cleanup time.  Also noted that the
qemuMonitorTestWorker() didn't get the test mutex lock on the failure path.

The incoming and outgoing buffers allocated by qemuMonitorTestIO() and
qemuMonitorTestAddReponse() were never VIR_FREE()'d in qemuMonitorTestFree().
2013-02-07 14:08:14 -05:00
Eric Blake
949ebc3022 tests: add a comment about our fake qmp
While testing QMP, I used a simple qemu session of
'qemu-kvm -M none -nodefaults -nographic -qmp stdio'
for some experiments.  But it took me far too long to remember
the magic invocation to unlock QMP into accepting normal commands.
While I was able to grep libvirt sources and easily find where
libvirt expects the normal "QMP" greeting, I could not find the
proper reply to that greeting nearby.

Reading the testsuite didn't help either, since there we don't
emulate the mandatory handshake.  But since my grep hit the
testsuite, adding a bit of documentation will make it much easier
to jog my memory in the future.

* tests/qemumonitortestutils.c (QEMU_JSON_GREETING): Mention that
the normal counterpart reply is skipped.
2013-01-31 10:15:33 -07:00
John Ferlan
35c30522a5 tests: Need to initialize 'test' properly on error path
In the error path, the test buffer is free'd, but due to how the free
routine is written the 'test' buffer pointer does not return to the caller
as NULL and then the free'd buffer address is returned to the caller.
2013-01-22 17:29:26 +01:00
Daniel P. Berrange
325b02b5a3 Convert virDomainObj, qemuAgent, qemuMonitor, lxcMonitor to virObjectLockable
The  virDomainObj, qemuAgent, qemuMonitor, lxcMonitor classes
all require a mutex, so can be switched to use virObjectLockable

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-01-16 11:02:58 +00:00
Daniel P. Berrange
f24404a324 Rename virterror.c virterror_internal.h to virerror.{c,h} 2012-12-21 11:19:50 +00:00
Daniel P. Berrange
44f6ae27fe Rename util.{c,h} to virutil.{c,h} 2012-12-21 11:19:49 +00:00
Daniel P. Berrange
404174cad3 Rename threads.{c,h} to virthread.{c,h} 2012-12-21 11:19:49 +00:00
Daniel P. Berrange
ab9b7ec2f6 Rename memory.{c,h} to viralloc.{c,h} 2012-12-21 11:17:14 +00:00
Daniel P. Berrange
936d95d347 Rename logging.{c,h} to virlog.{c,h} 2012-12-21 11:17:14 +00:00
Peter Krempa
e5aab47ab3 tests: Remove temporary directories in qemumonitorjsontest
qemumonitorjsontest creates a temporary directory to hold the socket
that is simulating the monitor socket. The directory containing the
socket wasn't disposed properly at the end of the test leaving garbage
in the temporary folder.
2012-11-13 09:32:15 +01:00
Peter Krempa
e25a32f3da tests: Fix qemumonitorjsontest deadlock when the machine is under load
When doing the qemumonitorjsontest on a machine under heavy load the
test tends to deadlock from time to time. This patch adds the hack to
break the event loop that is used in virsh.
2012-11-13 09:32:14 +01:00
Guido Günther
0e7fd31fb5 Create temporary dir for socket
to avoid ENAMETOOLONG:

https://buildd.debian.org/status/fetch.php?pkg=libvirt&arch=amd64&ver=1.0.0~rc1-1&stamp=1351453521
2012-10-30 19:16:57 +01:00
Eric Blake
4ecb723b9e maint: fix up copyright notice inconsistencies
https://www.gnu.org/licenses/gpl-howto.html recommends that
the 'If not, see <url>.' phrase be a separate sentence.

* tests/securityselinuxhelper.c: Remove doubled line.
* tests/securityselinuxtest.c: Likewise.
* globally: s/;  If/.  If/
2012-09-20 16:30:55 -06:00
Daniel P. Berrange
985a321ac0 Wait to receive QMP greeting before sending any monitor commands
Technically speaking we should wait until we receive the QMP
greeting message before attempting to send any QMP monitor
commands. Mostly we've got away with this, but there is a race
in some QEMU which cause it to SEGV if you sent it data too
soon after startup. Waiting for the QMP greeting avoids the
race

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-09-13 11:44:05 +01:00
Daniel P. Berrange
8d78fd04be Add helper library for testing the qemu monitor code
To be able to test the QEMU monitor code, we need to have a fake
QEMU monitor server. This introduces a simple (dumb) framework
that can do this. The test case registers a series of items to
be sent back as replies to commands that will be executed. A
thread runs the event loop looking for incoming replies and
sending back this pre-registered data. This allows testing all
QEMU monitor code that deals with parsing responses and errors
from QEMU, without needing QEMU around

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-09-07 13:18:04 +01:00