1 /*******************************************************************************
2 * This file contains the configfs implementation for iSCSI Target mode
3 * from the LIO-Target Project.
5 * (c) Copyright 2007-2013 Datera, Inc.
7 * Author: Nicholas A. Bellinger <nab@linux-iscsi.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 ****************************************************************************/
20 #include <linux/configfs.h>
21 #include <linux/ctype.h>
22 #include <linux/export.h>
23 #include <linux/inet.h>
24 #include <target/target_core_base.h>
25 #include <target/target_core_fabric.h>
26 #include <target/iscsi/iscsi_transport.h>
28 #include <target/iscsi/iscsi_target_core.h>
29 #include "iscsi_target_parameters.h"
30 #include "iscsi_target_device.h"
31 #include "iscsi_target_erl0.h"
32 #include "iscsi_target_nodeattrib.h"
33 #include "iscsi_target_tpg.h"
34 #include "iscsi_target_util.h"
35 #include "iscsi_target.h"
36 #include <target/iscsi/iscsi_target_stat.h>
39 /* Start items for lio_target_portal_cit */
41 static inline struct iscsi_tpg_np *to_iscsi_tpg_np(struct config_item *item)
43 return container_of(to_tpg_np(item), struct iscsi_tpg_np, se_tpg_np);
46 static ssize_t lio_target_np_sctp_show(struct config_item *item, char *page)
48 struct iscsi_tpg_np *tpg_np = to_iscsi_tpg_np(item);
49 struct iscsi_tpg_np *tpg_np_sctp;
52 tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP);
54 rb = sprintf(page, "1\n");
56 rb = sprintf(page, "0\n");
61 static ssize_t lio_target_np_sctp_store(struct config_item *item,
62 const char *page, size_t count)
64 struct iscsi_tpg_np *tpg_np = to_iscsi_tpg_np(item);
66 struct iscsi_portal_group *tpg;
67 struct iscsi_tpg_np *tpg_np_sctp = NULL;
71 ret = kstrtou32(page, 0, &op);
74 if ((op != 1) && (op != 0)) {
75 pr_err("Illegal value for tpg_enable: %u\n", op);
80 pr_err("Unable to locate struct iscsi_np from"
81 " struct iscsi_tpg_np\n");
86 if (iscsit_get_tpg(tpg) < 0)
91 * Use existing np->np_sockaddr for SCTP network portal reference
93 tpg_np_sctp = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr,
94 tpg_np, ISCSI_SCTP_TCP);
95 if (!tpg_np_sctp || IS_ERR(tpg_np_sctp))
98 tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP);
102 ret = iscsit_tpg_del_network_portal(tpg, tpg_np_sctp);
114 static ssize_t lio_target_np_iser_show(struct config_item *item, char *page)
116 struct iscsi_tpg_np *tpg_np = to_iscsi_tpg_np(item);
117 struct iscsi_tpg_np *tpg_np_iser;
120 tpg_np_iser = iscsit_tpg_locate_child_np(tpg_np, ISCSI_INFINIBAND);
122 rb = sprintf(page, "1\n");
124 rb = sprintf(page, "0\n");
129 static ssize_t lio_target_np_iser_store(struct config_item *item,
130 const char *page, size_t count)
132 struct iscsi_tpg_np *tpg_np = to_iscsi_tpg_np(item);
134 struct iscsi_portal_group *tpg;
135 struct iscsi_tpg_np *tpg_np_iser = NULL;
140 op = simple_strtoul(page, &endptr, 0);
141 if ((op != 1) && (op != 0)) {
142 pr_err("Illegal value for tpg_enable: %u\n", op);
147 pr_err("Unable to locate struct iscsi_np from"
148 " struct iscsi_tpg_np\n");
153 if (iscsit_get_tpg(tpg) < 0)
157 rc = request_module("ib_isert");
159 pr_warn("Unable to request_module for ib_isert\n");
163 tpg_np_iser = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr,
164 tpg_np, ISCSI_INFINIBAND);
165 if (IS_ERR(tpg_np_iser)) {
166 rc = PTR_ERR(tpg_np_iser);
170 tpg_np_iser = iscsit_tpg_locate_child_np(tpg_np, ISCSI_INFINIBAND);
172 rc = iscsit_tpg_del_network_portal(tpg, tpg_np_iser);
185 CONFIGFS_ATTR(lio_target_np_, sctp);
186 CONFIGFS_ATTR(lio_target_np_, iser);
188 static struct configfs_attribute *lio_target_portal_attrs[] = {
189 &lio_target_np_attr_sctp,
190 &lio_target_np_attr_iser,
194 /* Stop items for lio_target_portal_cit */
196 /* Start items for lio_target_np_cit */
198 #define MAX_PORTAL_LEN 256
200 static struct se_tpg_np *lio_target_call_addnptotpg(
201 struct se_portal_group *se_tpg,
202 struct config_group *group,
205 struct iscsi_portal_group *tpg;
206 struct iscsi_tpg_np *tpg_np;
207 char *str, *str2, *ip_str, *port_str;
208 struct sockaddr_storage sockaddr;
209 struct sockaddr_in *sock_in;
210 struct sockaddr_in6 *sock_in6;
213 char buf[MAX_PORTAL_LEN + 1];
215 if (strlen(name) > MAX_PORTAL_LEN) {
216 pr_err("strlen(name): %d exceeds MAX_PORTAL_LEN: %d\n",
217 (int)strlen(name), MAX_PORTAL_LEN);
218 return ERR_PTR(-EOVERFLOW);
220 memset(buf, 0, MAX_PORTAL_LEN + 1);
221 snprintf(buf, MAX_PORTAL_LEN + 1, "%s", name);
223 memset(&sockaddr, 0, sizeof(struct sockaddr_storage));
225 str = strstr(buf, "[");
229 str2 = strstr(str, "]");
231 pr_err("Unable to locate trailing \"]\""
232 " in IPv6 iSCSI network portal address\n");
233 return ERR_PTR(-EINVAL);
235 str++; /* Skip over leading "[" */
236 *str2 = '\0'; /* Terminate the unbracketed IPv6 address */
237 str2++; /* Skip over the \0 */
238 port_str = strstr(str2, ":");
240 pr_err("Unable to locate \":port\""
241 " in IPv6 iSCSI network portal address\n");
242 return ERR_PTR(-EINVAL);
244 *port_str = '\0'; /* Terminate string for IP */
245 port_str++; /* Skip over ":" */
247 ret = kstrtoul(port_str, 0, &port);
249 pr_err("kstrtoul() failed for port_str: %d\n", ret);
252 sock_in6 = (struct sockaddr_in6 *)&sockaddr;
253 sock_in6->sin6_family = AF_INET6;
254 sock_in6->sin6_port = htons((unsigned short)port);
255 ret = in6_pton(str, -1,
256 (void *)&sock_in6->sin6_addr.in6_u, -1, &end);
258 pr_err("in6_pton returned: %d\n", ret);
259 return ERR_PTR(-EINVAL);
262 str = ip_str = &buf[0];
263 port_str = strstr(ip_str, ":");
265 pr_err("Unable to locate \":port\""
266 " in IPv4 iSCSI network portal address\n");
267 return ERR_PTR(-EINVAL);
269 *port_str = '\0'; /* Terminate string for IP */
270 port_str++; /* Skip over ":" */
272 ret = kstrtoul(port_str, 0, &port);
274 pr_err("kstrtoul() failed for port_str: %d\n", ret);
277 sock_in = (struct sockaddr_in *)&sockaddr;
278 sock_in->sin_family = AF_INET;
279 sock_in->sin_port = htons((unsigned short)port);
280 sock_in->sin_addr.s_addr = in_aton(ip_str);
282 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
283 ret = iscsit_get_tpg(tpg);
285 return ERR_PTR(-EINVAL);
287 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s TPGT: %hu"
289 config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item),
292 * Assume ISCSI_TCP by default. Other network portals for other
295 * Traditional iSCSI over SCTP (initial support)
296 * iSER/TCP (TODO, hardware available)
297 * iSER/SCTP (TODO, software emulation with osc-iwarp)
298 * iSER/IB (TODO, hardware available)
300 * can be enabled with attributes under
301 * sys/kernel/config/iscsi/$IQN/$TPG/np/$IP:$PORT/
304 tpg_np = iscsit_tpg_add_network_portal(tpg, &sockaddr, NULL,
306 if (IS_ERR(tpg_np)) {
308 return ERR_CAST(tpg_np);
310 pr_debug("LIO_Target_ConfigFS: addnptotpg done!\n");
313 return &tpg_np->se_tpg_np;
316 static void lio_target_call_delnpfromtpg(
317 struct se_tpg_np *se_tpg_np)
319 struct iscsi_portal_group *tpg;
320 struct iscsi_tpg_np *tpg_np;
321 struct se_portal_group *se_tpg;
324 tpg_np = container_of(se_tpg_np, struct iscsi_tpg_np, se_tpg_np);
326 ret = iscsit_get_tpg(tpg);
330 se_tpg = &tpg->tpg_se_tpg;
331 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s TPGT: %hu"
332 " PORTAL: %pISpc\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item),
333 tpg->tpgt, &tpg_np->tpg_np->np_sockaddr);
335 ret = iscsit_tpg_del_network_portal(tpg, tpg_np);
339 pr_debug("LIO_Target_ConfigFS: delnpfromtpg done!\n");
344 /* End items for lio_target_np_cit */
346 /* Start items for lio_target_nacl_attrib_cit */
348 #define ISCSI_NACL_ATTR(name) \
349 static ssize_t iscsi_nacl_attrib_##name##_show(struct config_item *item,\
352 struct se_node_acl *se_nacl = attrib_to_nacl(item); \
353 struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \
356 return sprintf(page, "%u\n", nacl->node_attrib.name); \
359 static ssize_t iscsi_nacl_attrib_##name##_store(struct config_item *item,\
360 const char *page, size_t count) \
362 struct se_node_acl *se_nacl = attrib_to_nacl(item); \
363 struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \
368 ret = kstrtou32(page, 0, &val); \
371 ret = iscsit_na_##name(nacl, val); \
378 CONFIGFS_ATTR(iscsi_nacl_attrib_, name)
380 ISCSI_NACL_ATTR(dataout_timeout);
381 ISCSI_NACL_ATTR(dataout_timeout_retries);
382 ISCSI_NACL_ATTR(default_erl);
383 ISCSI_NACL_ATTR(nopin_timeout);
384 ISCSI_NACL_ATTR(nopin_response_timeout);
385 ISCSI_NACL_ATTR(random_datain_pdu_offsets);
386 ISCSI_NACL_ATTR(random_datain_seq_offsets);
387 ISCSI_NACL_ATTR(random_r2t_offsets);
389 static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = {
390 &iscsi_nacl_attrib_attr_dataout_timeout,
391 &iscsi_nacl_attrib_attr_dataout_timeout_retries,
392 &iscsi_nacl_attrib_attr_default_erl,
393 &iscsi_nacl_attrib_attr_nopin_timeout,
394 &iscsi_nacl_attrib_attr_nopin_response_timeout,
395 &iscsi_nacl_attrib_attr_random_datain_pdu_offsets,
396 &iscsi_nacl_attrib_attr_random_datain_seq_offsets,
397 &iscsi_nacl_attrib_attr_random_r2t_offsets,
401 /* End items for lio_target_nacl_attrib_cit */
403 /* Start items for lio_target_nacl_auth_cit */
405 #define __DEF_NACL_AUTH_STR(prefix, name, flags) \
406 static ssize_t __iscsi_##prefix##_##name##_show( \
407 struct iscsi_node_acl *nacl, \
410 struct iscsi_node_auth *auth = &nacl->node_auth; \
412 if (!capable(CAP_SYS_ADMIN)) \
414 return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \
417 static ssize_t __iscsi_##prefix##_##name##_store( \
418 struct iscsi_node_acl *nacl, \
422 struct iscsi_node_auth *auth = &nacl->node_auth; \
424 if (!capable(CAP_SYS_ADMIN)) \
426 if (count >= sizeof(auth->name)) \
428 snprintf(auth->name, sizeof(auth->name), "%s", page); \
429 if (!strncmp("NULL", auth->name, 4)) \
430 auth->naf_flags &= ~flags; \
432 auth->naf_flags |= flags; \
434 if ((auth->naf_flags & NAF_USERID_IN_SET) && \
435 (auth->naf_flags & NAF_PASSWORD_IN_SET)) \
436 auth->authenticate_target = 1; \
438 auth->authenticate_target = 0; \
443 #define DEF_NACL_AUTH_STR(name, flags) \
444 __DEF_NACL_AUTH_STR(nacl_auth, name, flags) \
445 static ssize_t iscsi_nacl_auth_##name##_show(struct config_item *item, \
448 struct se_node_acl *nacl = auth_to_nacl(item); \
449 return __iscsi_nacl_auth_##name##_show(container_of(nacl, \
450 struct iscsi_node_acl, se_node_acl), page); \
452 static ssize_t iscsi_nacl_auth_##name##_store(struct config_item *item, \
453 const char *page, size_t count) \
455 struct se_node_acl *nacl = auth_to_nacl(item); \
456 return __iscsi_nacl_auth_##name##_store(container_of(nacl, \
457 struct iscsi_node_acl, se_node_acl), page, count); \
460 CONFIGFS_ATTR(iscsi_nacl_auth_, name)
463 * One-way authentication userid
465 DEF_NACL_AUTH_STR(userid, NAF_USERID_SET);
466 DEF_NACL_AUTH_STR(password, NAF_PASSWORD_SET);
467 DEF_NACL_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
468 DEF_NACL_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
470 #define __DEF_NACL_AUTH_INT(prefix, name) \
471 static ssize_t __iscsi_##prefix##_##name##_show( \
472 struct iscsi_node_acl *nacl, \
475 struct iscsi_node_auth *auth = &nacl->node_auth; \
477 if (!capable(CAP_SYS_ADMIN)) \
480 return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \
483 #define DEF_NACL_AUTH_INT(name) \
484 __DEF_NACL_AUTH_INT(nacl_auth, name) \
485 static ssize_t iscsi_nacl_auth_##name##_show(struct config_item *item, \
488 struct se_node_acl *nacl = auth_to_nacl(item); \
489 return __iscsi_nacl_auth_##name##_show(container_of(nacl, \
490 struct iscsi_node_acl, se_node_acl), page); \
493 CONFIGFS_ATTR_RO(iscsi_nacl_auth_, name)
495 DEF_NACL_AUTH_INT(authenticate_target);
497 static struct configfs_attribute *lio_target_nacl_auth_attrs[] = {
498 &iscsi_nacl_auth_attr_userid,
499 &iscsi_nacl_auth_attr_password,
500 &iscsi_nacl_auth_attr_authenticate_target,
501 &iscsi_nacl_auth_attr_userid_mutual,
502 &iscsi_nacl_auth_attr_password_mutual,
506 /* End items for lio_target_nacl_auth_cit */
508 /* Start items for lio_target_nacl_param_cit */
510 #define ISCSI_NACL_PARAM(name) \
511 static ssize_t iscsi_nacl_param_##name##_show(struct config_item *item, \
514 struct se_node_acl *se_nacl = param_to_nacl(item); \
515 struct iscsi_session *sess; \
516 struct se_session *se_sess; \
519 spin_lock_bh(&se_nacl->nacl_sess_lock); \
520 se_sess = se_nacl->nacl_sess; \
522 rb = snprintf(page, PAGE_SIZE, \
523 "No Active iSCSI Session\n"); \
525 sess = se_sess->fabric_sess_ptr; \
526 rb = snprintf(page, PAGE_SIZE, "%u\n", \
527 (u32)sess->sess_ops->name); \
529 spin_unlock_bh(&se_nacl->nacl_sess_lock); \
534 CONFIGFS_ATTR_RO(iscsi_nacl_param_, name)
536 ISCSI_NACL_PARAM(MaxConnections);
537 ISCSI_NACL_PARAM(InitialR2T);
538 ISCSI_NACL_PARAM(ImmediateData);
539 ISCSI_NACL_PARAM(MaxBurstLength);
540 ISCSI_NACL_PARAM(FirstBurstLength);
541 ISCSI_NACL_PARAM(DefaultTime2Wait);
542 ISCSI_NACL_PARAM(DefaultTime2Retain);
543 ISCSI_NACL_PARAM(MaxOutstandingR2T);
544 ISCSI_NACL_PARAM(DataPDUInOrder);
545 ISCSI_NACL_PARAM(DataSequenceInOrder);
546 ISCSI_NACL_PARAM(ErrorRecoveryLevel);
548 static struct configfs_attribute *lio_target_nacl_param_attrs[] = {
549 &iscsi_nacl_param_attr_MaxConnections,
550 &iscsi_nacl_param_attr_InitialR2T,
551 &iscsi_nacl_param_attr_ImmediateData,
552 &iscsi_nacl_param_attr_MaxBurstLength,
553 &iscsi_nacl_param_attr_FirstBurstLength,
554 &iscsi_nacl_param_attr_DefaultTime2Wait,
555 &iscsi_nacl_param_attr_DefaultTime2Retain,
556 &iscsi_nacl_param_attr_MaxOutstandingR2T,
557 &iscsi_nacl_param_attr_DataPDUInOrder,
558 &iscsi_nacl_param_attr_DataSequenceInOrder,
559 &iscsi_nacl_param_attr_ErrorRecoveryLevel,
563 /* End items for lio_target_nacl_param_cit */
565 /* Start items for lio_target_acl_cit */
567 static ssize_t lio_target_nacl_info_show(struct config_item *item, char *page)
569 struct se_node_acl *se_nacl = acl_to_nacl(item);
570 struct iscsi_session *sess;
571 struct iscsi_conn *conn;
572 struct se_session *se_sess;
576 spin_lock_bh(&se_nacl->nacl_sess_lock);
577 se_sess = se_nacl->nacl_sess;
579 rb += sprintf(page+rb, "No active iSCSI Session for Initiator"
580 " Endpoint: %s\n", se_nacl->initiatorname);
582 sess = se_sess->fabric_sess_ptr;
584 rb += sprintf(page+rb, "InitiatorName: %s\n",
585 sess->sess_ops->InitiatorName);
586 rb += sprintf(page+rb, "InitiatorAlias: %s\n",
587 sess->sess_ops->InitiatorAlias);
589 rb += sprintf(page+rb,
590 "LIO Session ID: %u ISID: 0x%6ph TSIH: %hu ",
591 sess->sid, sess->isid, sess->tsih);
592 rb += sprintf(page+rb, "SessionType: %s\n",
593 (sess->sess_ops->SessionType) ?
594 "Discovery" : "Normal");
595 rb += sprintf(page+rb, "Session State: ");
596 switch (sess->session_state) {
597 case TARG_SESS_STATE_FREE:
598 rb += sprintf(page+rb, "TARG_SESS_FREE\n");
600 case TARG_SESS_STATE_ACTIVE:
601 rb += sprintf(page+rb, "TARG_SESS_STATE_ACTIVE\n");
603 case TARG_SESS_STATE_LOGGED_IN:
604 rb += sprintf(page+rb, "TARG_SESS_STATE_LOGGED_IN\n");
606 case TARG_SESS_STATE_FAILED:
607 rb += sprintf(page+rb, "TARG_SESS_STATE_FAILED\n");
609 case TARG_SESS_STATE_IN_CONTINUE:
610 rb += sprintf(page+rb, "TARG_SESS_STATE_IN_CONTINUE\n");
613 rb += sprintf(page+rb, "ERROR: Unknown Session"
618 rb += sprintf(page+rb, "---------------------[iSCSI Session"
619 " Values]-----------------------\n");
620 rb += sprintf(page+rb, " CmdSN/WR : CmdSN/WC : ExpCmdSN"
621 " : MaxCmdSN : ITT : TTT\n");
622 max_cmd_sn = (u32) atomic_read(&sess->max_cmd_sn);
623 rb += sprintf(page+rb, " 0x%08x 0x%08x 0x%08x 0x%08x"
626 (max_cmd_sn - sess->exp_cmd_sn) + 1,
627 sess->exp_cmd_sn, max_cmd_sn,
628 sess->init_task_tag, sess->targ_xfer_tag);
629 rb += sprintf(page+rb, "----------------------[iSCSI"
630 " Connections]-------------------------\n");
632 spin_lock(&sess->conn_lock);
633 list_for_each_entry(conn, &sess->sess_conn_list, conn_list) {
634 rb += sprintf(page+rb, "CID: %hu Connection"
635 " State: ", conn->cid);
636 switch (conn->conn_state) {
637 case TARG_CONN_STATE_FREE:
638 rb += sprintf(page+rb,
639 "TARG_CONN_STATE_FREE\n");
641 case TARG_CONN_STATE_XPT_UP:
642 rb += sprintf(page+rb,
643 "TARG_CONN_STATE_XPT_UP\n");
645 case TARG_CONN_STATE_IN_LOGIN:
646 rb += sprintf(page+rb,
647 "TARG_CONN_STATE_IN_LOGIN\n");
649 case TARG_CONN_STATE_LOGGED_IN:
650 rb += sprintf(page+rb,
651 "TARG_CONN_STATE_LOGGED_IN\n");
653 case TARG_CONN_STATE_IN_LOGOUT:
654 rb += sprintf(page+rb,
655 "TARG_CONN_STATE_IN_LOGOUT\n");
657 case TARG_CONN_STATE_LOGOUT_REQUESTED:
658 rb += sprintf(page+rb,
659 "TARG_CONN_STATE_LOGOUT_REQUESTED\n");
661 case TARG_CONN_STATE_CLEANUP_WAIT:
662 rb += sprintf(page+rb,
663 "TARG_CONN_STATE_CLEANUP_WAIT\n");
666 rb += sprintf(page+rb,
667 "ERROR: Unknown Connection State!\n");
671 rb += sprintf(page+rb, " Address %pISc %s", &conn->login_sockaddr,
672 (conn->network_transport == ISCSI_TCP) ?
674 rb += sprintf(page+rb, " StatSN: 0x%08x\n",
677 spin_unlock(&sess->conn_lock);
679 spin_unlock_bh(&se_nacl->nacl_sess_lock);
684 static ssize_t lio_target_nacl_cmdsn_depth_show(struct config_item *item,
687 return sprintf(page, "%u\n", acl_to_nacl(item)->queue_depth);
690 static ssize_t lio_target_nacl_cmdsn_depth_store(struct config_item *item,
691 const char *page, size_t count)
693 struct se_node_acl *se_nacl = acl_to_nacl(item);
694 struct se_portal_group *se_tpg = se_nacl->se_tpg;
695 struct iscsi_portal_group *tpg = container_of(se_tpg,
696 struct iscsi_portal_group, tpg_se_tpg);
697 struct config_item *acl_ci, *tpg_ci, *wwn_ci;
701 ret = kstrtou32(page, 0, &cmdsn_depth);
704 if (cmdsn_depth > TA_DEFAULT_CMDSN_DEPTH_MAX) {
705 pr_err("Passed cmdsn_depth: %u exceeds"
706 " TA_DEFAULT_CMDSN_DEPTH_MAX: %u\n", cmdsn_depth,
707 TA_DEFAULT_CMDSN_DEPTH_MAX);
710 acl_ci = &se_nacl->acl_group.cg_item;
712 pr_err("Unable to locatel acl_ci\n");
715 tpg_ci = &acl_ci->ci_parent->ci_group->cg_item;
717 pr_err("Unable to locate tpg_ci\n");
720 wwn_ci = &tpg_ci->ci_group->cg_item;
722 pr_err("Unable to locate config_item wwn_ci\n");
726 if (iscsit_get_tpg(tpg) < 0)
729 ret = core_tpg_set_initiator_node_queue_depth(se_nacl, cmdsn_depth);
731 pr_debug("LIO_Target_ConfigFS: %s/%s Set CmdSN Window: %u for"
732 "InitiatorName: %s\n", config_item_name(wwn_ci),
733 config_item_name(tpg_ci), cmdsn_depth,
734 config_item_name(acl_ci));
737 return (!ret) ? count : (ssize_t)ret;
740 static ssize_t lio_target_nacl_tag_show(struct config_item *item, char *page)
742 return snprintf(page, PAGE_SIZE, "%s", acl_to_nacl(item)->acl_tag);
745 static ssize_t lio_target_nacl_tag_store(struct config_item *item,
746 const char *page, size_t count)
748 struct se_node_acl *se_nacl = acl_to_nacl(item);
751 ret = core_tpg_set_initiator_node_tag(se_nacl->se_tpg, se_nacl, page);
758 CONFIGFS_ATTR_RO(lio_target_nacl_, info);
759 CONFIGFS_ATTR(lio_target_nacl_, cmdsn_depth);
760 CONFIGFS_ATTR(lio_target_nacl_, tag);
762 static struct configfs_attribute *lio_target_initiator_attrs[] = {
763 &lio_target_nacl_attr_info,
764 &lio_target_nacl_attr_cmdsn_depth,
765 &lio_target_nacl_attr_tag,
769 static int lio_target_init_nodeacl(struct se_node_acl *se_nacl,
772 struct iscsi_node_acl *acl =
773 container_of(se_nacl, struct iscsi_node_acl, se_node_acl);
774 struct config_group *stats_cg = &se_nacl->acl_fabric_stat_group;
776 stats_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2,
778 if (!stats_cg->default_groups) {
779 pr_err("Unable to allocate memory for"
780 " stats_cg->default_groups\n");
784 stats_cg->default_groups[0] = &acl->node_stat_grps.iscsi_sess_stats_group;
785 stats_cg->default_groups[1] = NULL;
786 config_group_init_type_name(&acl->node_stat_grps.iscsi_sess_stats_group,
787 "iscsi_sess_stats", &iscsi_stat_sess_cit);
792 static void lio_target_cleanup_nodeacl( struct se_node_acl *se_nacl)
794 struct iscsi_node_acl *acl = container_of(se_nacl,
795 struct iscsi_node_acl, se_node_acl);
796 struct config_item *df_item;
797 struct config_group *stats_cg;
800 stats_cg = &acl->se_node_acl.acl_fabric_stat_group;
801 for (i = 0; stats_cg->default_groups[i]; i++) {
802 df_item = &stats_cg->default_groups[i]->cg_item;
803 stats_cg->default_groups[i] = NULL;
804 config_item_put(df_item);
806 kfree(stats_cg->default_groups);
809 /* End items for lio_target_acl_cit */
811 /* Start items for lio_target_tpg_attrib_cit */
813 #define DEF_TPG_ATTRIB(name) \
815 static ssize_t iscsi_tpg_attrib_##name##_show(struct config_item *item, \
818 struct se_portal_group *se_tpg = attrib_to_tpg(item); \
819 struct iscsi_portal_group *tpg = container_of(se_tpg, \
820 struct iscsi_portal_group, tpg_se_tpg); \
823 if (iscsit_get_tpg(tpg) < 0) \
826 rb = sprintf(page, "%u\n", tpg->tpg_attrib.name); \
827 iscsit_put_tpg(tpg); \
831 static ssize_t iscsi_tpg_attrib_##name##_store(struct config_item *item,\
832 const char *page, size_t count) \
834 struct se_portal_group *se_tpg = attrib_to_tpg(item); \
835 struct iscsi_portal_group *tpg = container_of(se_tpg, \
836 struct iscsi_portal_group, tpg_se_tpg); \
840 if (iscsit_get_tpg(tpg) < 0) \
843 ret = kstrtou32(page, 0, &val); \
846 ret = iscsit_ta_##name(tpg, val); \
850 iscsit_put_tpg(tpg); \
853 iscsit_put_tpg(tpg); \
856 CONFIGFS_ATTR(iscsi_tpg_attrib_, name)
858 DEF_TPG_ATTRIB(authentication);
859 DEF_TPG_ATTRIB(login_timeout);
860 DEF_TPG_ATTRIB(netif_timeout);
861 DEF_TPG_ATTRIB(generate_node_acls);
862 DEF_TPG_ATTRIB(default_cmdsn_depth);
863 DEF_TPG_ATTRIB(cache_dynamic_acls);
864 DEF_TPG_ATTRIB(demo_mode_write_protect);
865 DEF_TPG_ATTRIB(prod_mode_write_protect);
866 DEF_TPG_ATTRIB(demo_mode_discovery);
867 DEF_TPG_ATTRIB(default_erl);
868 DEF_TPG_ATTRIB(t10_pi);
869 DEF_TPG_ATTRIB(fabric_prot_type);
870 DEF_TPG_ATTRIB(tpg_enabled_sendtargets);
871 DEF_TPG_ATTRIB(login_keys_workaround);
873 static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
874 &iscsi_tpg_attrib_attr_authentication,
875 &iscsi_tpg_attrib_attr_login_timeout,
876 &iscsi_tpg_attrib_attr_netif_timeout,
877 &iscsi_tpg_attrib_attr_generate_node_acls,
878 &iscsi_tpg_attrib_attr_default_cmdsn_depth,
879 &iscsi_tpg_attrib_attr_cache_dynamic_acls,
880 &iscsi_tpg_attrib_attr_demo_mode_write_protect,
881 &iscsi_tpg_attrib_attr_prod_mode_write_protect,
882 &iscsi_tpg_attrib_attr_demo_mode_discovery,
883 &iscsi_tpg_attrib_attr_default_erl,
884 &iscsi_tpg_attrib_attr_t10_pi,
885 &iscsi_tpg_attrib_attr_fabric_prot_type,
886 &iscsi_tpg_attrib_attr_tpg_enabled_sendtargets,
887 &iscsi_tpg_attrib_attr_login_keys_workaround,
891 /* End items for lio_target_tpg_attrib_cit */
893 /* Start items for lio_target_tpg_auth_cit */
895 #define __DEF_TPG_AUTH_STR(prefix, name, flags) \
896 static ssize_t __iscsi_##prefix##_##name##_show(struct se_portal_group *se_tpg, \
899 struct iscsi_portal_group *tpg = container_of(se_tpg, \
900 struct iscsi_portal_group, tpg_se_tpg); \
901 struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \
903 if (!capable(CAP_SYS_ADMIN)) \
906 return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \
909 static ssize_t __iscsi_##prefix##_##name##_store(struct se_portal_group *se_tpg,\
910 const char *page, size_t count) \
912 struct iscsi_portal_group *tpg = container_of(se_tpg, \
913 struct iscsi_portal_group, tpg_se_tpg); \
914 struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \
916 if (!capable(CAP_SYS_ADMIN)) \
919 snprintf(auth->name, sizeof(auth->name), "%s", page); \
920 if (!(strncmp("NULL", auth->name, 4))) \
921 auth->naf_flags &= ~flags; \
923 auth->naf_flags |= flags; \
925 if ((auth->naf_flags & NAF_USERID_IN_SET) && \
926 (auth->naf_flags & NAF_PASSWORD_IN_SET)) \
927 auth->authenticate_target = 1; \
929 auth->authenticate_target = 0; \
934 #define DEF_TPG_AUTH_STR(name, flags) \
935 __DEF_TPG_AUTH_STR(tpg_auth, name, flags) \
936 static ssize_t iscsi_tpg_auth_##name##_show(struct config_item *item, \
939 return __iscsi_tpg_auth_##name##_show(auth_to_tpg(item), page); \
942 static ssize_t iscsi_tpg_auth_##name##_store(struct config_item *item, \
943 const char *page, size_t count) \
945 return __iscsi_tpg_auth_##name##_store(auth_to_tpg(item), page, count); \
948 CONFIGFS_ATTR(iscsi_tpg_auth_, name);
951 DEF_TPG_AUTH_STR(userid, NAF_USERID_SET);
952 DEF_TPG_AUTH_STR(password, NAF_PASSWORD_SET);
953 DEF_TPG_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
954 DEF_TPG_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
956 #define __DEF_TPG_AUTH_INT(prefix, name) \
957 static ssize_t __iscsi_##prefix##_##name##_show(struct se_portal_group *se_tpg, \
960 struct iscsi_portal_group *tpg = container_of(se_tpg, \
961 struct iscsi_portal_group, tpg_se_tpg); \
962 struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \
964 if (!capable(CAP_SYS_ADMIN)) \
967 return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \
970 #define DEF_TPG_AUTH_INT(name) \
971 __DEF_TPG_AUTH_INT(tpg_auth, name) \
972 static ssize_t iscsi_tpg_auth_##name##_show(struct config_item *item, \
975 return __iscsi_tpg_auth_##name##_show(auth_to_tpg(item), page); \
977 CONFIGFS_ATTR_RO(iscsi_tpg_auth_, name);
979 DEF_TPG_AUTH_INT(authenticate_target);
981 static struct configfs_attribute *lio_target_tpg_auth_attrs[] = {
982 &iscsi_tpg_auth_attr_userid,
983 &iscsi_tpg_auth_attr_password,
984 &iscsi_tpg_auth_attr_authenticate_target,
985 &iscsi_tpg_auth_attr_userid_mutual,
986 &iscsi_tpg_auth_attr_password_mutual,
990 /* End items for lio_target_tpg_auth_cit */
992 /* Start items for lio_target_tpg_param_cit */
994 #define DEF_TPG_PARAM(name) \
995 static ssize_t iscsi_tpg_param_##name##_show(struct config_item *item, \
998 struct se_portal_group *se_tpg = param_to_tpg(item); \
999 struct iscsi_portal_group *tpg = container_of(se_tpg, \
1000 struct iscsi_portal_group, tpg_se_tpg); \
1001 struct iscsi_param *param; \
1004 if (iscsit_get_tpg(tpg) < 0) \
1007 param = iscsi_find_param_from_key(__stringify(name), \
1010 iscsit_put_tpg(tpg); \
1013 rb = snprintf(page, PAGE_SIZE, "%s\n", param->value); \
1015 iscsit_put_tpg(tpg); \
1018 static ssize_t iscsi_tpg_param_##name##_store(struct config_item *item, \
1019 const char *page, size_t count) \
1021 struct se_portal_group *se_tpg = param_to_tpg(item); \
1022 struct iscsi_portal_group *tpg = container_of(se_tpg, \
1023 struct iscsi_portal_group, tpg_se_tpg); \
1027 buf = kzalloc(PAGE_SIZE, GFP_KERNEL); \
1030 len = snprintf(buf, PAGE_SIZE, "%s=%s", __stringify(name), page); \
1031 if (isspace(buf[len-1])) \
1032 buf[len-1] = '\0'; /* Kill newline */ \
1034 if (iscsit_get_tpg(tpg) < 0) { \
1039 ret = iscsi_change_param_value(buf, tpg->param_list, 1); \
1044 iscsit_put_tpg(tpg); \
1048 iscsit_put_tpg(tpg); \
1051 CONFIGFS_ATTR(iscsi_tpg_param_, name)
1053 DEF_TPG_PARAM(AuthMethod);
1054 DEF_TPG_PARAM(HeaderDigest);
1055 DEF_TPG_PARAM(DataDigest);
1056 DEF_TPG_PARAM(MaxConnections);
1057 DEF_TPG_PARAM(TargetAlias);
1058 DEF_TPG_PARAM(InitialR2T);
1059 DEF_TPG_PARAM(ImmediateData);
1060 DEF_TPG_PARAM(MaxRecvDataSegmentLength);
1061 DEF_TPG_PARAM(MaxXmitDataSegmentLength);
1062 DEF_TPG_PARAM(MaxBurstLength);
1063 DEF_TPG_PARAM(FirstBurstLength);
1064 DEF_TPG_PARAM(DefaultTime2Wait);
1065 DEF_TPG_PARAM(DefaultTime2Retain);
1066 DEF_TPG_PARAM(MaxOutstandingR2T);
1067 DEF_TPG_PARAM(DataPDUInOrder);
1068 DEF_TPG_PARAM(DataSequenceInOrder);
1069 DEF_TPG_PARAM(ErrorRecoveryLevel);
1070 DEF_TPG_PARAM(IFMarker);
1071 DEF_TPG_PARAM(OFMarker);
1072 DEF_TPG_PARAM(IFMarkInt);
1073 DEF_TPG_PARAM(OFMarkInt);
1075 static struct configfs_attribute *lio_target_tpg_param_attrs[] = {
1076 &iscsi_tpg_param_attr_AuthMethod,
1077 &iscsi_tpg_param_attr_HeaderDigest,
1078 &iscsi_tpg_param_attr_DataDigest,
1079 &iscsi_tpg_param_attr_MaxConnections,
1080 &iscsi_tpg_param_attr_TargetAlias,
1081 &iscsi_tpg_param_attr_InitialR2T,
1082 &iscsi_tpg_param_attr_ImmediateData,
1083 &iscsi_tpg_param_attr_MaxRecvDataSegmentLength,
1084 &iscsi_tpg_param_attr_MaxXmitDataSegmentLength,
1085 &iscsi_tpg_param_attr_MaxBurstLength,
1086 &iscsi_tpg_param_attr_FirstBurstLength,
1087 &iscsi_tpg_param_attr_DefaultTime2Wait,
1088 &iscsi_tpg_param_attr_DefaultTime2Retain,
1089 &iscsi_tpg_param_attr_MaxOutstandingR2T,
1090 &iscsi_tpg_param_attr_DataPDUInOrder,
1091 &iscsi_tpg_param_attr_DataSequenceInOrder,
1092 &iscsi_tpg_param_attr_ErrorRecoveryLevel,
1093 &iscsi_tpg_param_attr_IFMarker,
1094 &iscsi_tpg_param_attr_OFMarker,
1095 &iscsi_tpg_param_attr_IFMarkInt,
1096 &iscsi_tpg_param_attr_OFMarkInt,
1100 /* End items for lio_target_tpg_param_cit */
1102 /* Start items for lio_target_tpg_cit */
1104 static ssize_t lio_target_tpg_enable_show(struct config_item *item, char *page)
1106 struct se_portal_group *se_tpg = to_tpg(item);
1107 struct iscsi_portal_group *tpg = container_of(se_tpg,
1108 struct iscsi_portal_group, tpg_se_tpg);
1111 spin_lock(&tpg->tpg_state_lock);
1112 len = sprintf(page, "%d\n",
1113 (tpg->tpg_state == TPG_STATE_ACTIVE) ? 1 : 0);
1114 spin_unlock(&tpg->tpg_state_lock);
1119 static ssize_t lio_target_tpg_enable_store(struct config_item *item,
1120 const char *page, size_t count)
1122 struct se_portal_group *se_tpg = to_tpg(item);
1123 struct iscsi_portal_group *tpg = container_of(se_tpg,
1124 struct iscsi_portal_group, tpg_se_tpg);
1128 ret = kstrtou32(page, 0, &op);
1131 if ((op != 1) && (op != 0)) {
1132 pr_err("Illegal value for tpg_enable: %u\n", op);
1136 ret = iscsit_get_tpg(tpg);
1141 ret = iscsit_tpg_enable_portal_group(tpg);
1146 * iscsit_tpg_disable_portal_group() assumes force=1
1148 ret = iscsit_tpg_disable_portal_group(tpg, 1);
1153 iscsit_put_tpg(tpg);
1156 iscsit_put_tpg(tpg);
1161 static ssize_t lio_target_tpg_dynamic_sessions_show(struct config_item *item,
1164 return target_show_dynamic_sessions(to_tpg(item), page);
1167 CONFIGFS_ATTR(lio_target_tpg_, enable);
1168 CONFIGFS_ATTR_RO(lio_target_tpg_, dynamic_sessions);
1170 static struct configfs_attribute *lio_target_tpg_attrs[] = {
1171 &lio_target_tpg_attr_enable,
1172 &lio_target_tpg_attr_dynamic_sessions,
1176 /* End items for lio_target_tpg_cit */
1178 /* Start items for lio_target_tiqn_cit */
1180 static struct se_portal_group *lio_target_tiqn_addtpg(
1182 struct config_group *group,
1185 struct iscsi_portal_group *tpg;
1186 struct iscsi_tiqn *tiqn;
1191 tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
1193 * Only tpgt_# directory groups can be created below
1194 * target/iscsi/iqn.superturodiskarry/
1196 tpgt_str = strstr(name, "tpgt_");
1198 pr_err("Unable to locate \"tpgt_#\" directory"
1202 tpgt_str += 5; /* Skip ahead of "tpgt_" */
1203 ret = kstrtou16(tpgt_str, 0, &tpgt);
1207 tpg = iscsit_alloc_portal_group(tiqn, tpgt);
1211 ret = core_tpg_register(wwn, &tpg->tpg_se_tpg, SCSI_PROTOCOL_ISCSI);
1215 ret = iscsit_tpg_add_portal_group(tiqn, tpg);
1219 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn);
1220 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated TPG: %s\n",
1222 return &tpg->tpg_se_tpg;
1224 core_tpg_deregister(&tpg->tpg_se_tpg);
1230 static void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg)
1232 struct iscsi_portal_group *tpg;
1233 struct iscsi_tiqn *tiqn;
1235 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
1236 tiqn = tpg->tpg_tiqn;
1238 * iscsit_tpg_del_portal_group() assumes force=1
1240 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> Releasing TPG\n");
1241 iscsit_tpg_del_portal_group(tiqn, tpg, 1);
1244 /* End items for lio_target_tiqn_cit */
1246 /* Start LIO-Target TIQN struct contig_item lio_target_cit */
1248 static ssize_t lio_target_wwn_lio_version_show(struct config_item *item,
1251 return sprintf(page, "Datera Inc. iSCSI Target "ISCSIT_VERSION"\n");
1254 CONFIGFS_ATTR_RO(lio_target_wwn_, lio_version);
1256 static struct configfs_attribute *lio_target_wwn_attrs[] = {
1257 &lio_target_wwn_attr_lio_version,
1261 static struct se_wwn *lio_target_call_coreaddtiqn(
1262 struct target_fabric_configfs *tf,
1263 struct config_group *group,
1266 struct config_group *stats_cg;
1267 struct iscsi_tiqn *tiqn;
1269 tiqn = iscsit_add_tiqn((unsigned char *)name);
1271 return ERR_CAST(tiqn);
1273 * Setup struct iscsi_wwn_stat_grps for se_wwn->fabric_stat_group.
1275 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group;
1277 stats_cg->default_groups = kmalloc(sizeof(struct config_group *) * 6,
1279 if (!stats_cg->default_groups) {
1280 pr_err("Unable to allocate memory for"
1281 " stats_cg->default_groups\n");
1282 iscsit_del_tiqn(tiqn);
1283 return ERR_PTR(-ENOMEM);
1286 stats_cg->default_groups[0] = &tiqn->tiqn_stat_grps.iscsi_instance_group;
1287 stats_cg->default_groups[1] = &tiqn->tiqn_stat_grps.iscsi_sess_err_group;
1288 stats_cg->default_groups[2] = &tiqn->tiqn_stat_grps.iscsi_tgt_attr_group;
1289 stats_cg->default_groups[3] = &tiqn->tiqn_stat_grps.iscsi_login_stats_group;
1290 stats_cg->default_groups[4] = &tiqn->tiqn_stat_grps.iscsi_logout_stats_group;
1291 stats_cg->default_groups[5] = NULL;
1292 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_instance_group,
1293 "iscsi_instance", &iscsi_stat_instance_cit);
1294 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_sess_err_group,
1295 "iscsi_sess_err", &iscsi_stat_sess_err_cit);
1296 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_tgt_attr_group,
1297 "iscsi_tgt_attr", &iscsi_stat_tgt_attr_cit);
1298 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_login_stats_group,
1299 "iscsi_login_stats", &iscsi_stat_login_cit);
1300 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_logout_stats_group,
1301 "iscsi_logout_stats", &iscsi_stat_logout_cit);
1303 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn);
1304 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated Node:"
1306 return &tiqn->tiqn_wwn;
1309 static void lio_target_call_coredeltiqn(
1312 struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
1313 struct config_item *df_item;
1314 struct config_group *stats_cg;
1317 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group;
1318 for (i = 0; stats_cg->default_groups[i]; i++) {
1319 df_item = &stats_cg->default_groups[i]->cg_item;
1320 stats_cg->default_groups[i] = NULL;
1321 config_item_put(df_item);
1323 kfree(stats_cg->default_groups);
1325 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s\n",
1327 iscsit_del_tiqn(tiqn);
1330 /* End LIO-Target TIQN struct contig_lio_target_cit */
1332 /* Start lio_target_discovery_auth_cit */
1334 #define DEF_DISC_AUTH_STR(name, flags) \
1335 __DEF_NACL_AUTH_STR(disc, name, flags) \
1336 static ssize_t iscsi_disc_##name##_show(struct config_item *item, char *page) \
1338 return __iscsi_disc_##name##_show(&iscsit_global->discovery_acl,\
1341 static ssize_t iscsi_disc_##name##_store(struct config_item *item, \
1342 const char *page, size_t count) \
1344 return __iscsi_disc_##name##_store(&iscsit_global->discovery_acl, \
1348 CONFIGFS_ATTR(iscsi_disc_, name)
1350 DEF_DISC_AUTH_STR(userid, NAF_USERID_SET);
1351 DEF_DISC_AUTH_STR(password, NAF_PASSWORD_SET);
1352 DEF_DISC_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
1353 DEF_DISC_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
1355 #define DEF_DISC_AUTH_INT(name) \
1356 __DEF_NACL_AUTH_INT(disc, name) \
1357 static ssize_t iscsi_disc_##name##_show(struct config_item *item, char *page) \
1359 return __iscsi_disc_##name##_show(&iscsit_global->discovery_acl, \
1362 CONFIGFS_ATTR_RO(iscsi_disc_, name)
1364 DEF_DISC_AUTH_INT(authenticate_target);
1367 static ssize_t iscsi_disc_enforce_discovery_auth_show(struct config_item *item,
1370 struct iscsi_node_auth *discovery_auth = &iscsit_global->discovery_acl.node_auth;
1372 return sprintf(page, "%d\n", discovery_auth->enforce_discovery_auth);
1375 static ssize_t iscsi_disc_enforce_discovery_auth_store(struct config_item *item,
1376 const char *page, size_t count)
1378 struct iscsi_param *param;
1379 struct iscsi_portal_group *discovery_tpg = iscsit_global->discovery_tpg;
1383 err = kstrtou32(page, 0, &op);
1386 if ((op != 1) && (op != 0)) {
1387 pr_err("Illegal value for enforce_discovery_auth:"
1392 if (!discovery_tpg) {
1393 pr_err("iscsit_global->discovery_tpg is NULL\n");
1397 param = iscsi_find_param_from_key(AUTHMETHOD,
1398 discovery_tpg->param_list);
1404 * Reset the AuthMethod key to CHAP.
1406 if (iscsi_update_param_value(param, CHAP) < 0)
1409 discovery_tpg->tpg_attrib.authentication = 1;
1410 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 1;
1411 pr_debug("LIO-CORE[0] Successfully enabled"
1412 " authentication enforcement for iSCSI"
1413 " Discovery TPG\n");
1416 * Reset the AuthMethod key to CHAP,None
1418 if (iscsi_update_param_value(param, "CHAP,None") < 0)
1421 discovery_tpg->tpg_attrib.authentication = 0;
1422 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 0;
1423 pr_debug("LIO-CORE[0] Successfully disabled"
1424 " authentication enforcement for iSCSI"
1425 " Discovery TPG\n");
1431 CONFIGFS_ATTR(iscsi_disc_, enforce_discovery_auth);
1433 static struct configfs_attribute *lio_target_discovery_auth_attrs[] = {
1434 &iscsi_disc_attr_userid,
1435 &iscsi_disc_attr_password,
1436 &iscsi_disc_attr_authenticate_target,
1437 &iscsi_disc_attr_userid_mutual,
1438 &iscsi_disc_attr_password_mutual,
1439 &iscsi_disc_attr_enforce_discovery_auth,
1443 /* End lio_target_discovery_auth_cit */
1445 /* Start functions for target_core_fabric_ops */
1447 static char *iscsi_get_fabric_name(void)
1452 static int iscsi_get_cmd_state(struct se_cmd *se_cmd)
1454 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1456 return cmd->i_state;
1459 static u32 lio_sess_get_index(struct se_session *se_sess)
1461 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1463 return sess->session_index;
1466 static u32 lio_sess_get_initiator_sid(
1467 struct se_session *se_sess,
1471 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1473 * iSCSI Initiator Session Identifier from RFC-3720.
1475 return snprintf(buf, size, "%6phN", sess->isid);
1478 static int lio_queue_data_in(struct se_cmd *se_cmd)
1480 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1482 cmd->i_state = ISTATE_SEND_DATAIN;
1483 cmd->conn->conn_transport->iscsit_queue_data_in(cmd->conn, cmd);
1488 static int lio_write_pending(struct se_cmd *se_cmd)
1490 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1491 struct iscsi_conn *conn = cmd->conn;
1493 if (!cmd->immediate_data && !cmd->unsolicited_data)
1494 return conn->conn_transport->iscsit_get_dataout(conn, cmd, false);
1499 static int lio_write_pending_status(struct se_cmd *se_cmd)
1501 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1504 spin_lock_bh(&cmd->istate_lock);
1505 ret = !(cmd->cmd_flags & ICF_GOT_LAST_DATAOUT);
1506 spin_unlock_bh(&cmd->istate_lock);
1511 static int lio_queue_status(struct se_cmd *se_cmd)
1513 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1515 cmd->i_state = ISTATE_SEND_STATUS;
1517 if (cmd->se_cmd.scsi_status || cmd->sense_reason) {
1518 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
1521 cmd->conn->conn_transport->iscsit_queue_status(cmd->conn, cmd);
1526 static void lio_queue_tm_rsp(struct se_cmd *se_cmd)
1528 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1530 cmd->i_state = ISTATE_SEND_TASKMGTRSP;
1531 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
1534 static void lio_aborted_task(struct se_cmd *se_cmd)
1536 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1538 cmd->conn->conn_transport->iscsit_aborted_task(cmd->conn, cmd);
1541 static inline struct iscsi_portal_group *iscsi_tpg(struct se_portal_group *se_tpg)
1543 return container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
1546 static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg)
1548 return iscsi_tpg(se_tpg)->tpg_tiqn->tiqn;
1551 static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg)
1553 return iscsi_tpg(se_tpg)->tpgt;
1556 static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg)
1558 return iscsi_tpg(se_tpg)->tpg_attrib.default_cmdsn_depth;
1561 static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg)
1563 return iscsi_tpg(se_tpg)->tpg_attrib.generate_node_acls;
1566 static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg)
1568 return iscsi_tpg(se_tpg)->tpg_attrib.cache_dynamic_acls;
1571 static int lio_tpg_check_demo_mode_write_protect(
1572 struct se_portal_group *se_tpg)
1574 return iscsi_tpg(se_tpg)->tpg_attrib.demo_mode_write_protect;
1577 static int lio_tpg_check_prod_mode_write_protect(
1578 struct se_portal_group *se_tpg)
1580 return iscsi_tpg(se_tpg)->tpg_attrib.prod_mode_write_protect;
1583 static int lio_tpg_check_prot_fabric_only(
1584 struct se_portal_group *se_tpg)
1587 * Only report fabric_prot_type if t10_pi has also been enabled
1588 * for incoming ib_isert sessions.
1590 if (!iscsi_tpg(se_tpg)->tpg_attrib.t10_pi)
1592 return iscsi_tpg(se_tpg)->tpg_attrib.fabric_prot_type;
1596 * This function calls iscsit_inc_session_usage_count() on the
1597 * struct iscsi_session in question.
1599 static int lio_tpg_shutdown_session(struct se_session *se_sess)
1601 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1602 struct se_portal_group *se_tpg = &sess->tpg->tpg_se_tpg;
1604 spin_lock_bh(&se_tpg->session_lock);
1605 spin_lock(&sess->conn_lock);
1606 if (atomic_read(&sess->session_fall_back_to_erl0) ||
1607 atomic_read(&sess->session_logout) ||
1608 (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) {
1609 spin_unlock(&sess->conn_lock);
1610 spin_unlock_bh(&se_tpg->session_lock);
1613 atomic_set(&sess->session_reinstatement, 1);
1614 atomic_set(&sess->session_fall_back_to_erl0, 1);
1615 spin_unlock(&sess->conn_lock);
1617 iscsit_stop_time2retain_timer(sess);
1618 spin_unlock_bh(&se_tpg->session_lock);
1620 iscsit_stop_session(sess, 1, 1);
1625 * Calls iscsit_dec_session_usage_count() as inverse of
1626 * lio_tpg_shutdown_session()
1628 static void lio_tpg_close_session(struct se_session *se_sess)
1630 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1632 * If the iSCSI Session for the iSCSI Initiator Node exists,
1633 * forcefully shutdown the iSCSI NEXUS.
1635 iscsit_close_session(sess);
1638 static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg)
1640 return iscsi_tpg(se_tpg)->tpg_tiqn->tiqn_index;
1643 static void lio_set_default_node_attributes(struct se_node_acl *se_acl)
1645 struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl,
1647 struct se_portal_group *se_tpg = se_acl->se_tpg;
1648 struct iscsi_portal_group *tpg = container_of(se_tpg,
1649 struct iscsi_portal_group, tpg_se_tpg);
1651 acl->node_attrib.nacl = acl;
1652 iscsit_set_default_node_attribues(acl, tpg);
1655 static int lio_check_stop_free(struct se_cmd *se_cmd)
1657 return target_put_sess_cmd(se_cmd);
1660 static void lio_release_cmd(struct se_cmd *se_cmd)
1662 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1664 pr_debug("Entering lio_release_cmd for se_cmd: %p\n", se_cmd);
1665 iscsit_release_cmd(cmd);
1668 const struct target_core_fabric_ops iscsi_ops = {
1669 .module = THIS_MODULE,
1671 .node_acl_size = sizeof(struct iscsi_node_acl),
1672 .get_fabric_name = iscsi_get_fabric_name,
1673 .tpg_get_wwn = lio_tpg_get_endpoint_wwn,
1674 .tpg_get_tag = lio_tpg_get_tag,
1675 .tpg_get_default_depth = lio_tpg_get_default_depth,
1676 .tpg_check_demo_mode = lio_tpg_check_demo_mode,
1677 .tpg_check_demo_mode_cache = lio_tpg_check_demo_mode_cache,
1678 .tpg_check_demo_mode_write_protect =
1679 lio_tpg_check_demo_mode_write_protect,
1680 .tpg_check_prod_mode_write_protect =
1681 lio_tpg_check_prod_mode_write_protect,
1682 .tpg_check_prot_fabric_only = &lio_tpg_check_prot_fabric_only,
1683 .tpg_get_inst_index = lio_tpg_get_inst_index,
1684 .check_stop_free = lio_check_stop_free,
1685 .release_cmd = lio_release_cmd,
1686 .shutdown_session = lio_tpg_shutdown_session,
1687 .close_session = lio_tpg_close_session,
1688 .sess_get_index = lio_sess_get_index,
1689 .sess_get_initiator_sid = lio_sess_get_initiator_sid,
1690 .write_pending = lio_write_pending,
1691 .write_pending_status = lio_write_pending_status,
1692 .set_default_node_attributes = lio_set_default_node_attributes,
1693 .get_cmd_state = iscsi_get_cmd_state,
1694 .queue_data_in = lio_queue_data_in,
1695 .queue_status = lio_queue_status,
1696 .queue_tm_rsp = lio_queue_tm_rsp,
1697 .aborted_task = lio_aborted_task,
1698 .fabric_make_wwn = lio_target_call_coreaddtiqn,
1699 .fabric_drop_wwn = lio_target_call_coredeltiqn,
1700 .fabric_make_tpg = lio_target_tiqn_addtpg,
1701 .fabric_drop_tpg = lio_target_tiqn_deltpg,
1702 .fabric_make_np = lio_target_call_addnptotpg,
1703 .fabric_drop_np = lio_target_call_delnpfromtpg,
1704 .fabric_init_nodeacl = lio_target_init_nodeacl,
1705 .fabric_cleanup_nodeacl = lio_target_cleanup_nodeacl,
1707 .tfc_discovery_attrs = lio_target_discovery_auth_attrs,
1708 .tfc_wwn_attrs = lio_target_wwn_attrs,
1709 .tfc_tpg_base_attrs = lio_target_tpg_attrs,
1710 .tfc_tpg_attrib_attrs = lio_target_tpg_attrib_attrs,
1711 .tfc_tpg_auth_attrs = lio_target_tpg_auth_attrs,
1712 .tfc_tpg_param_attrs = lio_target_tpg_param_attrs,
1713 .tfc_tpg_np_base_attrs = lio_target_portal_attrs,
1714 .tfc_tpg_nacl_base_attrs = lio_target_initiator_attrs,
1715 .tfc_tpg_nacl_attrib_attrs = lio_target_nacl_attrib_attrs,
1716 .tfc_tpg_nacl_auth_attrs = lio_target_nacl_auth_attrs,
1717 .tfc_tpg_nacl_param_attrs = lio_target_nacl_param_attrs,