/*
* Perform operation on all targets
*/
static int
isns_op_all(uint16_t op)
{
int so;
tgt_node_t *tgt = NULL;
char *iname;
if (isns_server_connection_thr_running == False) {
syslog(LOG_ERR,
"isns_op_all: iSNS discovery is not running."
" Check the previous iSNS initialization error.");
return (-1);
}
if ((so = isns_open(isns_args.server)) == -1) {
syslog(LOG_ERR, "isns_op_all: failed to open isns server %s",
isns_args.server);
return (-1);
}
while ((tgt = tgt_node_next_child(targets_config, XML_ELEMENT_TARG,
tgt)) != NULL) {
if (tgt_find_value_str(tgt, XML_ELEMENT_INAME, &iname)
== FALSE) {
continue;
}
switch (op) {
case ISNS_DEV_DEREG:
if (isns_dev_attr_dereg(so, iname) == -1) {
syslog(LOG_ERR,
"ISNS de-register failed\n");
}
num_reg = 0;
break;
case ISNS_SCN_DEREG:
if (isns_scn_dereg(so, iname) == -1) {
syslog(LOG_ERR,
"ISNS SCN de-register failed\n");
}
break;
case ISNS_SCN_REG:
if (isns_scn_reg(so, iname) == -1) {
syslog(LOG_ERR,
"ISNS SCN register failed\n");
}
break;
case ISNS_TGT_LOGOUT:
logout_targ(iname);
break;
default:
break;
}
free(iname);
}
isns_close(so);
return (0);
}
/*
* remove_zfs -- unshare a ZVOL from the target
*/
static char *
remove_zfs(tgt_node_t *x, ucred_t *cred)
{
char *prop;
char *msg = NULL;
tgt_node_t *targ = NULL;
libzfs_handle_t *zh = NULL;
const priv_set_t *eset;
if (tgt_find_value_str(x, XML_ELEMENT_NAME, &prop) == False) {
xml_rtn_msg(&msg, ERR_SYNTAX_MISSING_NAME);
return (msg);
}
if ((zh = libzfs_init()) == NULL) {
xml_rtn_msg(&msg, ERR_INTERNAL_ERROR);
free(prop);
return (msg);
}
eset = ucred_getprivset(cred, PRIV_EFFECTIVE);
if (eset != NULL ? !priv_ismember(eset, PRIV_SYS_CONFIG) :
ucred_geteuid(cred) != 0) {
/*
* See if user has ZFS dataset permissions to do operation
*/
if (zfs_iscsi_perm_check(zh, prop, cred) != 0) {
xml_rtn_msg(&msg, ERR_NO_PERMISSION);
free(prop);
libzfs_fini(zh);
return (msg);
}
}
libzfs_fini(zh);
while ((targ = tgt_node_next(targets_config, XML_ELEMENT_TARG, targ))
!= NULL) {
if (strcmp(targ->x_value, prop) == 0)
break;
}
free(prop);
if (targ == NULL) {
/*
* We're unsharing a target. If we don't have a reference
* then there's no problem.
*/
xml_rtn_msg(&msg, ERR_SUCCESS);
return (msg);
}
if (tgt_find_value_str(targ, XML_ELEMENT_INAME, &prop) ==
False) {
xml_rtn_msg(&msg, ERR_TARGCFG_MISSING_INAME);
return (msg);
}
tgt_node_remove(targets_config, targ, MatchBoth);
/*
* Wait until here to issue a logout to any initiators that
* might be logged into the target. Certain initiators are
* sneaky in that if asked to logout they will, but turn right
* around and log back into the target. By waiting until here
* to issue the logout we'll have removed reference to the target
* such that this can't happen.
*/
if (isns_enabled() == True) {
if (isns_dereg(prop) != 0)
syslog(LOG_INFO, "ISNS dereg failed\n");
}
logout_targ(prop);
free(prop);
xml_rtn_msg(&msg, ERR_SUCCESS);
return (msg);
}
static char *
remove_target(tgt_node_t *x)
{
char *msg = NULL;
char *prop = NULL;
tgt_node_t *targ = NULL;
tgt_node_t *list;
tgt_node_t *c = NULL;
Boolean_t change_made = False;
int lun_num;
if (tgt_find_value_str(x, XML_ELEMENT_NAME, &prop) == False) {
xml_rtn_msg(&msg, ERR_SYNTAX_MISSING_NAME);
return (msg);
}
while ((targ = tgt_node_next(targets_config, XML_ELEMENT_TARG, targ)) !=
NULL) {
if (strcmp(targ->x_value, prop) == 0)
break;
}
free(prop);
if (targ == NULL) {
xml_rtn_msg(&msg, ERR_TARG_NOT_FOUND);
return (msg);
}
if (tgt_find_value_str(x, XML_ELEMENT_ACL, &prop) == True) {
if (prop == NULL) {
xml_rtn_msg(&msg, ERR_SYNTAX_EMPTY_ACL);
return (msg);
}
if ((list = tgt_node_next(targ, XML_ELEMENT_ACLLIST, NULL)) ==
NULL) {
free(prop);
xml_rtn_msg(&msg, ERR_ACL_NOT_FOUND);
return (msg);
}
c = tgt_node_alloc(XML_ELEMENT_ACLINIT, String, prop);
if (tgt_node_remove(list, c, MatchBoth) == False) {
xml_rtn_msg(&msg, ERR_INIT_NOT_FOUND);
goto error;
}
tgt_node_free(c);
if (list->x_child == NULL)
(void) tgt_node_remove(targ, list, MatchName);
free(prop);
change_made = True;
}
if (tgt_find_value_str(x, XML_ELEMENT_TPGT, &prop) == True) {
if (prop == NULL) {
xml_rtn_msg(&msg, ERR_SYNTAX_EMPTY_TPGT);
return (msg);
}
if ((list = tgt_node_next(targ, XML_ELEMENT_TPGTLIST, NULL)) ==
NULL) {
free(prop);
xml_rtn_msg(&msg, ERR_ACL_NOT_FOUND);
return (msg);
}
c = tgt_node_alloc(XML_ELEMENT_TPGT, String, prop);
if (tgt_node_remove(list, c, MatchBoth) == False) {
xml_rtn_msg(&msg, ERR_TPGT_NOT_FOUND);
goto error;
}
tgt_node_free(c);
if (list->x_child == NULL)
(void) tgt_node_remove(targ, list, MatchName);
free(prop);
/* update isns */
if (isns_enabled()) {
if (isns_dev_update(targ->x_value, ISNS_MOD_TPGT) != 0)
syslog(LOG_ALERT, "ISNS register failed\n");
}
change_made = True;
}
if (tgt_find_value_int(x, XML_ELEMENT_LUN, &lun_num) == True) {
if (tgt_find_value_intchk(x, XML_ELEMENT_LUN, &lun_num) ==
False) {
xml_rtn_msg(&msg, ERR_LUN_INVALID_RANGE);
return (msg);
}
/*
* Save the iscsi-name which we'll need to remove LUNs.
*/
if (tgt_find_value_str(targ, XML_ELEMENT_INAME, &prop) ==
False) {
xml_rtn_msg(&msg, ERR_TARGCFG_MISSING_INAME);
return (msg);
}
logout_targ(prop);
thick_provo_stop(prop, lun_num);
remove_target_common(targ->x_value, lun_num, &msg);
if (msg != NULL)
goto error;
/* ISNS de-register target if it's the last lun */
if (lun_num == 0 && isns_enabled() == True) {
if (isns_dereg(prop) != 0)
syslog(LOG_INFO, "ISNS dereg failed\n");
}
iscsi_inventory_change(prop);
free(prop);
change_made = True;
}
if (change_made == True) {
if (mgmt_config_save2scf() == True)
xml_rtn_msg(&msg, ERR_SUCCESS);
} else {
xml_rtn_msg(&msg, ERR_SYNTAX_MISSING_OPERAND);
}
return (msg);
error:
if (c != NULL)
tgt_node_free(c);
if (prop != NULL)
free(prop);
return (msg);
}
/*
* process_scn()
* -Added/Updated object: nop, initiator is verified during connect
*
* -Removed object: logout_targ if still connected
*
* RFC 4171 section 5.6.5.9
* destination attribute is always the 1st attribute in the SCN message,
* then follows by SCN_BITMAP(35) & Source_Attribute(32)
*/
static void
process_scn(int so, isns_pdu_t *scn)
{
uint8_t *ptr = scn->payload;
isns_tlv_t *tlv;
uint16_t cnt = 0;
uint32_t got_dest = 0;
uint32_t got_source = 0;
uint32_t bitmap = 0;
uint32_t got_bitmap = 0;
char dest[MAXNAMELEN];
char source[MAXNAMELEN];
queue_prt(mgmtq, Q_ISNS_DBG, "PROCESS_SCN %u\n",
scn->payload_len);
if (scn->payload_len < TAG_LEN_SZ) {
syslog(LOG_ALERT, "ISNS SCN message error\n");
return;
}
while (cnt < scn->payload_len) {
/* LINTED */
tlv = (isns_tlv_t *)ptr;
tlv->attr_id = ntohl(tlv->attr_id);
tlv->attr_len = ntohl(tlv->attr_len);
queue_prt(mgmtq, Q_ISNS_DBG, "PROCESS_SCN %u %u\n",
tlv->attr_id, tlv->attr_len);
/*
* devAttrQry the source attribute, process if node_type
* is initiator
*/
switch (tlv->attr_id) {
case ISNS_ISCSI_NAME_ATTR_ID:
if (got_dest == 0) {
bcopy(tlv->attr_value, dest,
tlv->attr_len);
queue_prt(mgmtq, Q_ISNS_DBG,
"PROCESS_SCN dest %s\n", dest);
got_dest = 1;
} else {
bcopy(tlv->attr_value, source,
tlv->attr_len);
queue_prt(mgmtq, Q_ISNS_DBG,
"PROCESS_SCN source %s\n", source);
got_source = 1;
}
break;
case ISNS_ISCSI_SCN_BITMAP_ATTR_ID:
bcopy(tlv->attr_value, &bitmap, tlv->attr_len);
bitmap = ntohl(bitmap);
queue_prt(mgmtq, Q_ISNS_DBG,
"PROCESS_SCN bitmap %u\n", bitmap);
got_bitmap = 1;
break;
default:
queue_prt(mgmtq, Q_ISNS_DBG,
"PROCESS_SCN DEFAULT\n");
break;
}
if (got_source && !got_bitmap) {
queue_prt(mgmtq, Q_ISNS_DBG,
"process_scn: message out-of-order\n");
return;
}
if (got_source && got_bitmap) {
switch (bitmap) {
case ISNS_OBJ_ADDED:
case ISNS_OBJ_UPDATED:
queue_prt(mgmtq, Q_ISNS_DBG,
"PROCESS_SCN OBJ ADDED");
(void) isns_update();
break;
case ISNS_OBJ_REMOVED:
queue_prt(mgmtq, Q_ISNS_DBG,
"PROCESS_SCN OBJ REMOVED");
/* logout target */
if (got_dest == 0) {
syslog(LOG_ALERT,
"ISNS protocol error\n");
continue;
}
logout_targ(dest);
break;
default:
break;
}
/* clear got_xxx */
got_source = 0;
got_bitmap = 1;
}
/* next attribute */
cnt += ISNS_ATTR_SZ(tlv->attr_len);
ptr += ISNS_ATTR_SZ(tlv->attr_len);
}
queue_prt(mgmtq, Q_ISNS_DBG, "DONE PROCESS_SCN\n");
}
