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
virStorageBackendISCSIConnection(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;
}
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;
}
/*
* Create a new command with a NULL terminated
* set of args, taking binary from args[0]
*/
virCommandPtr
virCommandNewArgs(const char *const*args)
{
virCommandPtr cmd;
if (VIR_ALLOC(cmd) < 0)
return NULL;
FD_ZERO(&cmd->preserve);
FD_ZERO(&cmd->transfer);
cmd->infd = cmd->outfd = cmd->errfd = -1;
cmd->inpipe = -1;
cmd->pid = -1;
virCommandAddArgSet(cmd, args);
return cmd;
}
