static int
virISCSIConnection(const char *portal,
const char *initiatoriqn,
const char *target,
const char **extraargv)
{
int ret = -1;
const char *const baseargv[] = {
ISCSIADM,
"--mode", "node",
"--portal", portal,
"--targetname", target,
NULL
};
virCommandPtr cmd;
char *ifacename = NULL;
cmd = virCommandNewArgs(baseargv);
virCommandAddArgSet(cmd, extraargv);
if (initiatoriqn) {
switch (virStorageBackendIQNFound(initiatoriqn, &ifacename)) {
case IQN_FOUND:
VIR_DEBUG("ifacename: '%s'", ifacename);
break;
case IQN_MISSING:
if (virStorageBackendCreateIfaceIQN(initiatoriqn, &ifacename) != 0)
goto cleanup;
/*
* iscsiadm doesn't let you send commands to the Interface IQN,
* unless you've first issued a 'sendtargets' command to the
* portal. Without the sendtargets all that is received is a
* "iscsiadm: No records found"
*/
if (virISCSIScanTargets(portal, NULL, NULL) < 0)
goto cleanup;
break;
case IQN_ERROR:
default:
goto cleanup;
}
virCommandAddArgList(cmd, "--interface", ifacename, NULL);
}
if (virCommandRun(cmd, NULL) < 0)
goto cleanup;
ret = 0;
cleanup:
virCommandFree(cmd);
VIR_FREE(ifacename);
return ret;
}
static int
virStorageBackendISCSIStartPool(virConnectPtr conn,
virStoragePoolObjPtr pool)
{
char *portal = NULL;
char *session = NULL;
int ret = -1;
if (pool->def->source.nhost != 1) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Expected exactly 1 host for the storage pool"));
return -1;
}
if (pool->def->source.hosts[0].name == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("missing source host"));
return -1;
}
if (pool->def->source.ndevice != 1 ||
pool->def->source.devices[0].path == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("missing source device"));
return -1;
}
if ((session = virStorageBackendISCSISession(pool, true)) == NULL) {
if ((portal = virStorageBackendISCSIPortal(&pool->def->source)) == NULL)
goto cleanup;
/*
* iscsiadm doesn't let you login to a target, unless you've
* first issued a 'sendtargets' command to the portal :-(
*/
if (virISCSIScanTargets(portal,
pool->def->source.initiator.iqn,
NULL, NULL) < 0)
goto cleanup;
if (virStorageBackendISCSISetAuth(portal, conn, &pool->def->source) < 0)
goto cleanup;
if (virISCSIConnectionLogin(portal,
pool->def->source.initiator.iqn,
pool->def->source.devices[0].path) < 0)
goto cleanup;
}
ret = 0;
cleanup:
VIR_FREE(portal);
VIR_FREE(session);
return ret;
}
static char *
virStorageBackendISCSIFindPoolSources(virConnectPtr conn ATTRIBUTE_UNUSED,
const char *srcSpec,
unsigned int flags)
{
virStoragePoolSourcePtr source = NULL;
size_t ntargets = 0;
char **targets = NULL;
char *ret = NULL;
size_t i;
virStoragePoolSourceList list = {
.type = VIR_STORAGE_POOL_ISCSI,
.nsources = 0,
.sources = NULL
};
char *portal = NULL;
virCheckFlags(0, NULL);
if (!srcSpec) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("hostname must be specified for iscsi sources"));
return NULL;
}
if (!(source = virStoragePoolDefParseSourceString(srcSpec,
list.type)))
return NULL;
if (source->nhost != 1) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Expected exactly 1 host for the storage pool"));
goto cleanup;
}
if (!(portal = virStorageBackendISCSIPortal(source)))
goto cleanup;
if (virISCSIScanTargets(portal,
source->initiator.iqn,
&ntargets, &targets) < 0)
goto cleanup;
if (VIR_ALLOC_N(list.sources, ntargets) < 0)
goto cleanup;
for (i = 0; i < ntargets; i++) {
if (VIR_ALLOC_N(list.sources[i].devices, 1) < 0 ||
VIR_ALLOC_N(list.sources[i].hosts, 1) < 0)
goto cleanup;
list.sources[i].nhost = 1;
list.sources[i].hosts[0] = source->hosts[0];
list.sources[i].initiator = source->initiator;
list.sources[i].ndevice = 1;
list.sources[i].devices[0].path = targets[i];
list.nsources++;
}
if (!(ret = virStoragePoolSourceListFormat(&list)))
goto cleanup;
cleanup:
if (list.sources) {
for (i = 0; i < ntargets; i++) {
VIR_FREE(list.sources[i].hosts);
VIR_FREE(list.sources[i].devices);
}
VIR_FREE(list.sources);
}
for (i = 0; i < ntargets; i++)
VIR_FREE(targets[i]);
VIR_FREE(targets);
VIR_FREE(portal);
virStoragePoolSourceFree(source);
return ret;
}
static int
virStorageBackendISCSICheckPool(virStoragePoolObjPtr pool,
bool *isActive)
{
char *session = NULL;
int ret = -1;
*isActive = false;
if (pool->def->source.nhost != 1) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Expected exactly 1 host for the storage pool"));
return -1;
}
if (pool->def->source.hosts[0].name == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("missing source host"));
return -1;
}
if (pool->def->source.ndevice != 1 ||
pool->def->source.devices[0].path == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("missing source device"));
return -1;
}
if ((session = virStorageBackendISCSISession(pool, true)) != NULL) {
*isActive = true;
VIR_FREE(session);
}
ret = 0;
return ret;
}