qemu_conf: check for duplicate security drivers

Using the same driver multiple times is pointless and
it can result in confusing errors:

$ virsh start test
error: Failed to start domain test
error: internal error: security label already defined for VM

https://bugzilla.redhat.com/show_bug.cgi?id=1153891
This commit is contained in:
Ján Tomko 2015-01-19 12:46:37 +01:00
parent 5c703ca396
commit d16704fd60

View File

@ -460,7 +460,7 @@ int virQEMUDriverConfigLoadFile(virQEMUDriverConfigPtr cfg,
p = virConfGetValue(conf, "security_driver");
if (p && p->type == VIR_CONF_LIST) {
size_t len;
size_t len, j;
virConfValuePtr pp;
/* Calc length and check items */
@ -476,6 +476,13 @@ int virQEMUDriverConfigLoadFile(virQEMUDriverConfigPtr cfg,
goto cleanup;
for (i = 0, pp = p->list; pp; i++, pp = pp->next) {
for (j = 0; j < i; j++) {
if (STREQ(pp->str, cfg->securityDriverNames[j])) {
virReportError(VIR_ERR_CONF_SYNTAX,
_("Duplicate security driver %s"), pp->str);
goto cleanup;
}
}
if (VIR_STRDUP(cfg->securityDriverNames[i], pp->str) < 0)
goto cleanup;
}