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qemuTestDriverInit: Don't access live data

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Some of our tests (e.g. qemuhotplugtest) call
virDomainSaveConfig(). Now the problem is, qemuTestDriverInit()
creates a fake qemu driver and fills it with some fake
configuration. At least so we hoped. The truth is, it calls
regular virQEMUDriverConfigNew() and then fix couple of paths.
Literally. Therefore our tests see regular stateDir and configDir
for the user that is running the tests. Directories, where live
domain XMLs are stored. Let's just hope our test suite hasn't
mangled any of them.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Michal Privoznik 2017-03-06 08:27:23 +01:00
parent b3388de7f2
commit 16efa11aa6
1 changed files with 34 additions and 0 deletions
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34
tests/testutilsqemu.c
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@ -513,6 +513,10 @@ qemuTestParseCapabilities(virCapsPtr caps,
void qemuTestDriverFree(virQEMUDriver *driver)
{
virMutexDestroy(&driver->lock);
if (driver->config) {
virFileDeleteTree(driver->config->stateDir);
virFileDeleteTree(driver->config->configDir);
}
virQEMUCapsCacheFree(driver->qemuCapsCache);
virObjectUnref(driver->xmlopt);
virObjectUnref(driver->caps);
@ -548,9 +552,14 @@ int qemuTestCapsCacheInsert(virQEMUCapsCachePtr cache, const char *binary,
return ret;
}
# define STATEDIRTEMPLATE abs_builddir "/qemustatedir-XXXXXX"
# define CONFIGDIRTEMPLATE abs_builddir "/qemuconfigdir-XXXXXX"
int qemuTestDriverInit(virQEMUDriver *driver)
{
virSecurityManagerPtr mgr = NULL;
char statedir[] = STATEDIRTEMPLATE;
char configdir[] = CONFIGDIRTEMPLATE;
memset(driver, 0, sizeof(*driver));
@ -561,6 +570,11 @@ int qemuTestDriverInit(virQEMUDriver *driver)
if (!driver->config)
goto error;
/* Do this early so that qemuTestDriverFree() doesn't see (unlink) the real
* dirs. */
VIR_FREE(driver->config->stateDir);
VIR_FREE(driver->config->configDir);
/* Overwrite some default paths so it's consistent for tests. */
VIR_FREE(driver->config->libDir);
VIR_FREE(driver->config->channelTargetDir);
@ -568,6 +582,26 @@ int qemuTestDriverInit(virQEMUDriver *driver)
VIR_STRDUP(driver->config->channelTargetDir, "/tmp/channel") < 0)
goto error;
if (!mkdtemp(statedir)) {
virFilePrintf(stderr, "Cannot create fake stateDir");
goto error;
}
if (VIR_STRDUP(driver->config->stateDir, statedir) < 0) {
rmdir(statedir);
goto error;
}
if (!mkdtemp(configdir)) {
virFilePrintf(stderr, "Cannot create fake configDir");
goto error;
}
if (VIR_STRDUP(driver->config->configDir, configdir) < 0) {
rmdir(configdir);
goto error;
}
driver->caps = testQemuCapsInit();
if (!driver->caps)
goto error;