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/target_core_fabric_configfs.h>
27 #include <target/target_core_configfs.h>
28 #include <target/configfs_macros.h>
29 #include <target/iscsi/iscsi_transport.h>
31 #include "iscsi_target_core.h"
32 #include "iscsi_target_parameters.h"
33 #include "iscsi_target_device.h"
34 #include "iscsi_target_erl0.h"
35 #include "iscsi_target_nodeattrib.h"
36 #include "iscsi_target_tpg.h"
37 #include "iscsi_target_util.h"
38 #include "iscsi_target.h"
39 #include "iscsi_target_stat.h"
40 #include "iscsi_target_configfs.h"
42 struct target_fabric_configfs *lio_target_fabric_configfs;
44 struct lio_target_configfs_attribute {
45 struct configfs_attribute attr;
46 ssize_t (*show)(void *, char *);
47 ssize_t (*store)(void *, const char *, size_t);
50 /* Start items for lio_target_portal_cit */
52 static ssize_t lio_target_np_show_sctp(
53 struct se_tpg_np *se_tpg_np,
56 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np,
57 struct iscsi_tpg_np, se_tpg_np);
58 struct iscsi_tpg_np *tpg_np_sctp;
61 tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP);
63 rb = sprintf(page, "1\n");
65 rb = sprintf(page, "0\n");
70 static ssize_t lio_target_np_store_sctp(
71 struct se_tpg_np *se_tpg_np,
76 struct iscsi_portal_group *tpg;
77 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np,
78 struct iscsi_tpg_np, se_tpg_np);
79 struct iscsi_tpg_np *tpg_np_sctp = NULL;
83 ret = kstrtou32(page, 0, &op);
86 if ((op != 1) && (op != 0)) {
87 pr_err("Illegal value for tpg_enable: %u\n", op);
92 pr_err("Unable to locate struct iscsi_np from"
93 " struct iscsi_tpg_np\n");
98 if (iscsit_get_tpg(tpg) < 0)
103 * Use existing np->np_sockaddr for SCTP network portal reference
105 tpg_np_sctp = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr,
106 np->np_ip, tpg_np, ISCSI_SCTP_TCP);
107 if (!tpg_np_sctp || IS_ERR(tpg_np_sctp))
110 tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP);
114 ret = iscsit_tpg_del_network_portal(tpg, tpg_np_sctp);
126 TF_NP_BASE_ATTR(lio_target, sctp, S_IRUGO | S_IWUSR);
128 static ssize_t lio_target_np_show_iser(
129 struct se_tpg_np *se_tpg_np,
132 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np,
133 struct iscsi_tpg_np, se_tpg_np);
134 struct iscsi_tpg_np *tpg_np_iser;
137 tpg_np_iser = iscsit_tpg_locate_child_np(tpg_np, ISCSI_INFINIBAND);
139 rb = sprintf(page, "1\n");
141 rb = sprintf(page, "0\n");
146 static ssize_t lio_target_np_store_iser(
147 struct se_tpg_np *se_tpg_np,
152 struct iscsi_portal_group *tpg;
153 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np,
154 struct iscsi_tpg_np, se_tpg_np);
155 struct iscsi_tpg_np *tpg_np_iser = NULL;
160 op = simple_strtoul(page, &endptr, 0);
161 if ((op != 1) && (op != 0)) {
162 pr_err("Illegal value for tpg_enable: %u\n", op);
167 pr_err("Unable to locate struct iscsi_np from"
168 " struct iscsi_tpg_np\n");
173 if (iscsit_get_tpg(tpg) < 0)
177 rc = request_module("ib_isert");
179 pr_warn("Unable to request_module for ib_isert\n");
183 tpg_np_iser = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr,
184 np->np_ip, tpg_np, ISCSI_INFINIBAND);
185 if (IS_ERR(tpg_np_iser)) {
186 rc = PTR_ERR(tpg_np_iser);
190 tpg_np_iser = iscsit_tpg_locate_child_np(tpg_np, ISCSI_INFINIBAND);
192 rc = iscsit_tpg_del_network_portal(tpg, tpg_np_iser);
205 TF_NP_BASE_ATTR(lio_target, iser, S_IRUGO | S_IWUSR);
207 static struct configfs_attribute *lio_target_portal_attrs[] = {
208 &lio_target_np_sctp.attr,
209 &lio_target_np_iser.attr,
213 /* Stop items for lio_target_portal_cit */
215 /* Start items for lio_target_np_cit */
217 #define MAX_PORTAL_LEN 256
219 static struct se_tpg_np *lio_target_call_addnptotpg(
220 struct se_portal_group *se_tpg,
221 struct config_group *group,
224 struct iscsi_portal_group *tpg;
225 struct iscsi_tpg_np *tpg_np;
226 char *str, *str2, *ip_str, *port_str;
227 struct __kernel_sockaddr_storage sockaddr;
228 struct sockaddr_in *sock_in;
229 struct sockaddr_in6 *sock_in6;
232 char buf[MAX_PORTAL_LEN + 1];
234 if (strlen(name) > MAX_PORTAL_LEN) {
235 pr_err("strlen(name): %d exceeds MAX_PORTAL_LEN: %d\n",
236 (int)strlen(name), MAX_PORTAL_LEN);
237 return ERR_PTR(-EOVERFLOW);
239 memset(buf, 0, MAX_PORTAL_LEN + 1);
240 snprintf(buf, MAX_PORTAL_LEN + 1, "%s", name);
242 memset(&sockaddr, 0, sizeof(struct __kernel_sockaddr_storage));
244 str = strstr(buf, "[");
248 str2 = strstr(str, "]");
250 pr_err("Unable to locate trailing \"]\""
251 " in IPv6 iSCSI network portal address\n");
252 return ERR_PTR(-EINVAL);
254 str++; /* Skip over leading "[" */
255 *str2 = '\0'; /* Terminate the IPv6 address */
256 str2++; /* Skip over the "]" */
257 port_str = strstr(str2, ":");
259 pr_err("Unable to locate \":port\""
260 " in IPv6 iSCSI network portal address\n");
261 return ERR_PTR(-EINVAL);
263 *port_str = '\0'; /* Terminate string for IP */
264 port_str++; /* Skip over ":" */
266 ret = kstrtoul(port_str, 0, &port);
268 pr_err("kstrtoul() failed for port_str: %d\n", ret);
271 sock_in6 = (struct sockaddr_in6 *)&sockaddr;
272 sock_in6->sin6_family = AF_INET6;
273 sock_in6->sin6_port = htons((unsigned short)port);
274 ret = in6_pton(str, IPV6_ADDRESS_SPACE,
275 (void *)&sock_in6->sin6_addr.in6_u, -1, &end);
277 pr_err("in6_pton returned: %d\n", ret);
278 return ERR_PTR(-EINVAL);
281 str = ip_str = &buf[0];
282 port_str = strstr(ip_str, ":");
284 pr_err("Unable to locate \":port\""
285 " in IPv4 iSCSI network portal address\n");
286 return ERR_PTR(-EINVAL);
288 *port_str = '\0'; /* Terminate string for IP */
289 port_str++; /* Skip over ":" */
291 ret = kstrtoul(port_str, 0, &port);
293 pr_err("kstrtoul() failed for port_str: %d\n", ret);
296 sock_in = (struct sockaddr_in *)&sockaddr;
297 sock_in->sin_family = AF_INET;
298 sock_in->sin_port = htons((unsigned short)port);
299 sock_in->sin_addr.s_addr = in_aton(ip_str);
301 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
302 ret = iscsit_get_tpg(tpg);
304 return ERR_PTR(-EINVAL);
306 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s TPGT: %hu"
308 config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item),
311 * Assume ISCSI_TCP by default. Other network portals for other
314 * Traditional iSCSI over SCTP (initial support)
315 * iSER/TCP (TODO, hardware available)
316 * iSER/SCTP (TODO, software emulation with osc-iwarp)
317 * iSER/IB (TODO, hardware available)
319 * can be enabled with attributes under
320 * sys/kernel/config/iscsi/$IQN/$TPG/np/$IP:$PORT/
323 tpg_np = iscsit_tpg_add_network_portal(tpg, &sockaddr, str, NULL,
325 if (IS_ERR(tpg_np)) {
327 return ERR_CAST(tpg_np);
329 pr_debug("LIO_Target_ConfigFS: addnptotpg done!\n");
332 return &tpg_np->se_tpg_np;
335 static void lio_target_call_delnpfromtpg(
336 struct se_tpg_np *se_tpg_np)
338 struct iscsi_portal_group *tpg;
339 struct iscsi_tpg_np *tpg_np;
340 struct se_portal_group *se_tpg;
343 tpg_np = container_of(se_tpg_np, struct iscsi_tpg_np, se_tpg_np);
345 ret = iscsit_get_tpg(tpg);
349 se_tpg = &tpg->tpg_se_tpg;
350 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s TPGT: %hu"
351 " PORTAL: %s:%hu\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item),
352 tpg->tpgt, tpg_np->tpg_np->np_ip, tpg_np->tpg_np->np_port);
354 ret = iscsit_tpg_del_network_portal(tpg, tpg_np);
358 pr_debug("LIO_Target_ConfigFS: delnpfromtpg done!\n");
363 /* End items for lio_target_np_cit */
365 /* Start items for lio_target_nacl_attrib_cit */
367 #define DEF_NACL_ATTRIB(name) \
368 static ssize_t iscsi_nacl_attrib_show_##name( \
369 struct se_node_acl *se_nacl, \
372 struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \
375 return sprintf(page, "%u\n", nacl->node_attrib.name); \
378 static ssize_t iscsi_nacl_attrib_store_##name( \
379 struct se_node_acl *se_nacl, \
383 struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \
388 ret = kstrtou32(page, 0, &val); \
391 ret = iscsit_na_##name(nacl, val); \
398 #define NACL_ATTR(_name, _mode) TF_NACL_ATTRIB_ATTR(iscsi, _name, _mode);
400 * Define iscsi_node_attrib_s_dataout_timeout
402 DEF_NACL_ATTRIB(dataout_timeout);
403 NACL_ATTR(dataout_timeout, S_IRUGO | S_IWUSR);
405 * Define iscsi_node_attrib_s_dataout_timeout_retries
407 DEF_NACL_ATTRIB(dataout_timeout_retries);
408 NACL_ATTR(dataout_timeout_retries, S_IRUGO | S_IWUSR);
410 * Define iscsi_node_attrib_s_default_erl
412 DEF_NACL_ATTRIB(default_erl);
413 NACL_ATTR(default_erl, S_IRUGO | S_IWUSR);
415 * Define iscsi_node_attrib_s_nopin_timeout
417 DEF_NACL_ATTRIB(nopin_timeout);
418 NACL_ATTR(nopin_timeout, S_IRUGO | S_IWUSR);
420 * Define iscsi_node_attrib_s_nopin_response_timeout
422 DEF_NACL_ATTRIB(nopin_response_timeout);
423 NACL_ATTR(nopin_response_timeout, S_IRUGO | S_IWUSR);
425 * Define iscsi_node_attrib_s_random_datain_pdu_offsets
427 DEF_NACL_ATTRIB(random_datain_pdu_offsets);
428 NACL_ATTR(random_datain_pdu_offsets, S_IRUGO | S_IWUSR);
430 * Define iscsi_node_attrib_s_random_datain_seq_offsets
432 DEF_NACL_ATTRIB(random_datain_seq_offsets);
433 NACL_ATTR(random_datain_seq_offsets, S_IRUGO | S_IWUSR);
435 * Define iscsi_node_attrib_s_random_r2t_offsets
437 DEF_NACL_ATTRIB(random_r2t_offsets);
438 NACL_ATTR(random_r2t_offsets, S_IRUGO | S_IWUSR);
440 static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = {
441 &iscsi_nacl_attrib_dataout_timeout.attr,
442 &iscsi_nacl_attrib_dataout_timeout_retries.attr,
443 &iscsi_nacl_attrib_default_erl.attr,
444 &iscsi_nacl_attrib_nopin_timeout.attr,
445 &iscsi_nacl_attrib_nopin_response_timeout.attr,
446 &iscsi_nacl_attrib_random_datain_pdu_offsets.attr,
447 &iscsi_nacl_attrib_random_datain_seq_offsets.attr,
448 &iscsi_nacl_attrib_random_r2t_offsets.attr,
452 /* End items for lio_target_nacl_attrib_cit */
454 /* Start items for lio_target_nacl_auth_cit */
456 #define __DEF_NACL_AUTH_STR(prefix, name, flags) \
457 static ssize_t __iscsi_##prefix##_show_##name( \
458 struct iscsi_node_acl *nacl, \
461 struct iscsi_node_auth *auth = &nacl->node_auth; \
463 if (!capable(CAP_SYS_ADMIN)) \
465 return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \
468 static ssize_t __iscsi_##prefix##_store_##name( \
469 struct iscsi_node_acl *nacl, \
473 struct iscsi_node_auth *auth = &nacl->node_auth; \
475 if (!capable(CAP_SYS_ADMIN)) \
478 snprintf(auth->name, sizeof(auth->name), "%s", page); \
479 if (!strncmp("NULL", auth->name, 4)) \
480 auth->naf_flags &= ~flags; \
482 auth->naf_flags |= flags; \
484 if ((auth->naf_flags & NAF_USERID_IN_SET) && \
485 (auth->naf_flags & NAF_PASSWORD_IN_SET)) \
486 auth->authenticate_target = 1; \
488 auth->authenticate_target = 0; \
493 #define __DEF_NACL_AUTH_INT(prefix, name) \
494 static ssize_t __iscsi_##prefix##_show_##name( \
495 struct iscsi_node_acl *nacl, \
498 struct iscsi_node_auth *auth = &nacl->node_auth; \
500 if (!capable(CAP_SYS_ADMIN)) \
503 return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \
506 #define DEF_NACL_AUTH_STR(name, flags) \
507 __DEF_NACL_AUTH_STR(nacl_auth, name, flags) \
508 static ssize_t iscsi_nacl_auth_show_##name( \
509 struct se_node_acl *nacl, \
512 return __iscsi_nacl_auth_show_##name(container_of(nacl, \
513 struct iscsi_node_acl, se_node_acl), page); \
515 static ssize_t iscsi_nacl_auth_store_##name( \
516 struct se_node_acl *nacl, \
520 return __iscsi_nacl_auth_store_##name(container_of(nacl, \
521 struct iscsi_node_acl, se_node_acl), page, count); \
524 #define DEF_NACL_AUTH_INT(name) \
525 __DEF_NACL_AUTH_INT(nacl_auth, name) \
526 static ssize_t iscsi_nacl_auth_show_##name( \
527 struct se_node_acl *nacl, \
530 return __iscsi_nacl_auth_show_##name(container_of(nacl, \
531 struct iscsi_node_acl, se_node_acl), page); \
534 #define AUTH_ATTR(_name, _mode) TF_NACL_AUTH_ATTR(iscsi, _name, _mode);
535 #define AUTH_ATTR_RO(_name) TF_NACL_AUTH_ATTR_RO(iscsi, _name);
538 * One-way authentication userid
540 DEF_NACL_AUTH_STR(userid, NAF_USERID_SET);
541 AUTH_ATTR(userid, S_IRUGO | S_IWUSR);
543 * One-way authentication password
545 DEF_NACL_AUTH_STR(password, NAF_PASSWORD_SET);
546 AUTH_ATTR(password, S_IRUGO | S_IWUSR);
548 * Enforce mutual authentication
550 DEF_NACL_AUTH_INT(authenticate_target);
551 AUTH_ATTR_RO(authenticate_target);
553 * Mutual authentication userid
555 DEF_NACL_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
556 AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR);
558 * Mutual authentication password
560 DEF_NACL_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
561 AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR);
563 static struct configfs_attribute *lio_target_nacl_auth_attrs[] = {
564 &iscsi_nacl_auth_userid.attr,
565 &iscsi_nacl_auth_password.attr,
566 &iscsi_nacl_auth_authenticate_target.attr,
567 &iscsi_nacl_auth_userid_mutual.attr,
568 &iscsi_nacl_auth_password_mutual.attr,
572 /* End items for lio_target_nacl_auth_cit */
574 /* Start items for lio_target_nacl_param_cit */
576 #define DEF_NACL_PARAM(name) \
577 static ssize_t iscsi_nacl_param_show_##name( \
578 struct se_node_acl *se_nacl, \
581 struct iscsi_session *sess; \
582 struct se_session *se_sess; \
585 spin_lock_bh(&se_nacl->nacl_sess_lock); \
586 se_sess = se_nacl->nacl_sess; \
588 rb = snprintf(page, PAGE_SIZE, \
589 "No Active iSCSI Session\n"); \
591 sess = se_sess->fabric_sess_ptr; \
592 rb = snprintf(page, PAGE_SIZE, "%u\n", \
593 (u32)sess->sess_ops->name); \
595 spin_unlock_bh(&se_nacl->nacl_sess_lock); \
600 #define NACL_PARAM_ATTR(_name) TF_NACL_PARAM_ATTR_RO(iscsi, _name);
602 DEF_NACL_PARAM(MaxConnections);
603 NACL_PARAM_ATTR(MaxConnections);
605 DEF_NACL_PARAM(InitialR2T);
606 NACL_PARAM_ATTR(InitialR2T);
608 DEF_NACL_PARAM(ImmediateData);
609 NACL_PARAM_ATTR(ImmediateData);
611 DEF_NACL_PARAM(MaxBurstLength);
612 NACL_PARAM_ATTR(MaxBurstLength);
614 DEF_NACL_PARAM(FirstBurstLength);
615 NACL_PARAM_ATTR(FirstBurstLength);
617 DEF_NACL_PARAM(DefaultTime2Wait);
618 NACL_PARAM_ATTR(DefaultTime2Wait);
620 DEF_NACL_PARAM(DefaultTime2Retain);
621 NACL_PARAM_ATTR(DefaultTime2Retain);
623 DEF_NACL_PARAM(MaxOutstandingR2T);
624 NACL_PARAM_ATTR(MaxOutstandingR2T);
626 DEF_NACL_PARAM(DataPDUInOrder);
627 NACL_PARAM_ATTR(DataPDUInOrder);
629 DEF_NACL_PARAM(DataSequenceInOrder);
630 NACL_PARAM_ATTR(DataSequenceInOrder);
632 DEF_NACL_PARAM(ErrorRecoveryLevel);
633 NACL_PARAM_ATTR(ErrorRecoveryLevel);
635 static struct configfs_attribute *lio_target_nacl_param_attrs[] = {
636 &iscsi_nacl_param_MaxConnections.attr,
637 &iscsi_nacl_param_InitialR2T.attr,
638 &iscsi_nacl_param_ImmediateData.attr,
639 &iscsi_nacl_param_MaxBurstLength.attr,
640 &iscsi_nacl_param_FirstBurstLength.attr,
641 &iscsi_nacl_param_DefaultTime2Wait.attr,
642 &iscsi_nacl_param_DefaultTime2Retain.attr,
643 &iscsi_nacl_param_MaxOutstandingR2T.attr,
644 &iscsi_nacl_param_DataPDUInOrder.attr,
645 &iscsi_nacl_param_DataSequenceInOrder.attr,
646 &iscsi_nacl_param_ErrorRecoveryLevel.attr,
650 /* End items for lio_target_nacl_param_cit */
652 /* Start items for lio_target_acl_cit */
654 static ssize_t lio_target_nacl_show_info(
655 struct se_node_acl *se_nacl,
658 struct iscsi_session *sess;
659 struct iscsi_conn *conn;
660 struct se_session *se_sess;
663 spin_lock_bh(&se_nacl->nacl_sess_lock);
664 se_sess = se_nacl->nacl_sess;
666 rb += sprintf(page+rb, "No active iSCSI Session for Initiator"
667 " Endpoint: %s\n", se_nacl->initiatorname);
669 sess = se_sess->fabric_sess_ptr;
671 if (sess->sess_ops->InitiatorName)
672 rb += sprintf(page+rb, "InitiatorName: %s\n",
673 sess->sess_ops->InitiatorName);
674 if (sess->sess_ops->InitiatorAlias)
675 rb += sprintf(page+rb, "InitiatorAlias: %s\n",
676 sess->sess_ops->InitiatorAlias);
678 rb += sprintf(page+rb, "LIO Session ID: %u "
679 "ISID: 0x%02x %02x %02x %02x %02x %02x "
680 "TSIH: %hu ", sess->sid,
681 sess->isid[0], sess->isid[1], sess->isid[2],
682 sess->isid[3], sess->isid[4], sess->isid[5],
684 rb += sprintf(page+rb, "SessionType: %s\n",
685 (sess->sess_ops->SessionType) ?
686 "Discovery" : "Normal");
687 rb += sprintf(page+rb, "Session State: ");
688 switch (sess->session_state) {
689 case TARG_SESS_STATE_FREE:
690 rb += sprintf(page+rb, "TARG_SESS_FREE\n");
692 case TARG_SESS_STATE_ACTIVE:
693 rb += sprintf(page+rb, "TARG_SESS_STATE_ACTIVE\n");
695 case TARG_SESS_STATE_LOGGED_IN:
696 rb += sprintf(page+rb, "TARG_SESS_STATE_LOGGED_IN\n");
698 case TARG_SESS_STATE_FAILED:
699 rb += sprintf(page+rb, "TARG_SESS_STATE_FAILED\n");
701 case TARG_SESS_STATE_IN_CONTINUE:
702 rb += sprintf(page+rb, "TARG_SESS_STATE_IN_CONTINUE\n");
705 rb += sprintf(page+rb, "ERROR: Unknown Session"
710 rb += sprintf(page+rb, "---------------------[iSCSI Session"
711 " Values]-----------------------\n");
712 rb += sprintf(page+rb, " CmdSN/WR : CmdSN/WC : ExpCmdSN"
713 " : MaxCmdSN : ITT : TTT\n");
714 rb += sprintf(page+rb, " 0x%08x 0x%08x 0x%08x 0x%08x"
717 (sess->max_cmd_sn - sess->exp_cmd_sn) + 1,
718 sess->exp_cmd_sn, sess->max_cmd_sn,
719 sess->init_task_tag, sess->targ_xfer_tag);
720 rb += sprintf(page+rb, "----------------------[iSCSI"
721 " Connections]-------------------------\n");
723 spin_lock(&sess->conn_lock);
724 list_for_each_entry(conn, &sess->sess_conn_list, conn_list) {
725 rb += sprintf(page+rb, "CID: %hu Connection"
726 " State: ", conn->cid);
727 switch (conn->conn_state) {
728 case TARG_CONN_STATE_FREE:
729 rb += sprintf(page+rb,
730 "TARG_CONN_STATE_FREE\n");
732 case TARG_CONN_STATE_XPT_UP:
733 rb += sprintf(page+rb,
734 "TARG_CONN_STATE_XPT_UP\n");
736 case TARG_CONN_STATE_IN_LOGIN:
737 rb += sprintf(page+rb,
738 "TARG_CONN_STATE_IN_LOGIN\n");
740 case TARG_CONN_STATE_LOGGED_IN:
741 rb += sprintf(page+rb,
742 "TARG_CONN_STATE_LOGGED_IN\n");
744 case TARG_CONN_STATE_IN_LOGOUT:
745 rb += sprintf(page+rb,
746 "TARG_CONN_STATE_IN_LOGOUT\n");
748 case TARG_CONN_STATE_LOGOUT_REQUESTED:
749 rb += sprintf(page+rb,
750 "TARG_CONN_STATE_LOGOUT_REQUESTED\n");
752 case TARG_CONN_STATE_CLEANUP_WAIT:
753 rb += sprintf(page+rb,
754 "TARG_CONN_STATE_CLEANUP_WAIT\n");
757 rb += sprintf(page+rb,
758 "ERROR: Unknown Connection State!\n");
762 rb += sprintf(page+rb, " Address %s %s", conn->login_ip,
763 (conn->network_transport == ISCSI_TCP) ?
765 rb += sprintf(page+rb, " StatSN: 0x%08x\n",
768 spin_unlock(&sess->conn_lock);
770 spin_unlock_bh(&se_nacl->nacl_sess_lock);
775 TF_NACL_BASE_ATTR_RO(lio_target, info);
777 static ssize_t lio_target_nacl_show_cmdsn_depth(
778 struct se_node_acl *se_nacl,
781 return sprintf(page, "%u\n", se_nacl->queue_depth);
784 static ssize_t lio_target_nacl_store_cmdsn_depth(
785 struct se_node_acl *se_nacl,
789 struct se_portal_group *se_tpg = se_nacl->se_tpg;
790 struct iscsi_portal_group *tpg = container_of(se_tpg,
791 struct iscsi_portal_group, tpg_se_tpg);
792 struct config_item *acl_ci, *tpg_ci, *wwn_ci;
796 ret = kstrtou32(page, 0, &cmdsn_depth);
799 if (cmdsn_depth > TA_DEFAULT_CMDSN_DEPTH_MAX) {
800 pr_err("Passed cmdsn_depth: %u exceeds"
801 " TA_DEFAULT_CMDSN_DEPTH_MAX: %u\n", cmdsn_depth,
802 TA_DEFAULT_CMDSN_DEPTH_MAX);
805 acl_ci = &se_nacl->acl_group.cg_item;
807 pr_err("Unable to locatel acl_ci\n");
810 tpg_ci = &acl_ci->ci_parent->ci_group->cg_item;
812 pr_err("Unable to locate tpg_ci\n");
815 wwn_ci = &tpg_ci->ci_group->cg_item;
817 pr_err("Unable to locate config_item wwn_ci\n");
821 if (iscsit_get_tpg(tpg) < 0)
824 * iscsit_tpg_set_initiator_node_queue_depth() assumes force=1
826 ret = iscsit_tpg_set_initiator_node_queue_depth(tpg,
827 config_item_name(acl_ci), cmdsn_depth, 1);
829 pr_debug("LIO_Target_ConfigFS: %s/%s Set CmdSN Window: %u for"
830 "InitiatorName: %s\n", config_item_name(wwn_ci),
831 config_item_name(tpg_ci), cmdsn_depth,
832 config_item_name(acl_ci));
835 return (!ret) ? count : (ssize_t)ret;
838 TF_NACL_BASE_ATTR(lio_target, cmdsn_depth, S_IRUGO | S_IWUSR);
840 static ssize_t lio_target_nacl_show_tag(
841 struct se_node_acl *se_nacl,
844 return snprintf(page, PAGE_SIZE, "%s", se_nacl->acl_tag);
847 static ssize_t lio_target_nacl_store_tag(
848 struct se_node_acl *se_nacl,
854 ret = core_tpg_set_initiator_node_tag(se_nacl->se_tpg, se_nacl, page);
861 TF_NACL_BASE_ATTR(lio_target, tag, S_IRUGO | S_IWUSR);
863 static struct configfs_attribute *lio_target_initiator_attrs[] = {
864 &lio_target_nacl_info.attr,
865 &lio_target_nacl_cmdsn_depth.attr,
866 &lio_target_nacl_tag.attr,
870 static struct se_node_acl *lio_tpg_alloc_fabric_acl(
871 struct se_portal_group *se_tpg)
873 struct iscsi_node_acl *acl;
875 acl = kzalloc(sizeof(struct iscsi_node_acl), GFP_KERNEL);
877 pr_err("Unable to allocate memory for struct iscsi_node_acl\n");
881 return &acl->se_node_acl;
884 static struct se_node_acl *lio_target_make_nodeacl(
885 struct se_portal_group *se_tpg,
886 struct config_group *group,
889 struct config_group *stats_cg;
890 struct iscsi_node_acl *acl;
891 struct se_node_acl *se_nacl_new, *se_nacl;
892 struct iscsi_portal_group *tpg = container_of(se_tpg,
893 struct iscsi_portal_group, tpg_se_tpg);
896 se_nacl_new = lio_tpg_alloc_fabric_acl(se_tpg);
898 return ERR_PTR(-ENOMEM);
900 cmdsn_depth = tpg->tpg_attrib.default_cmdsn_depth;
902 * se_nacl_new may be released by core_tpg_add_initiator_node_acl()
903 * when converting a NdoeACL from demo mode -> explict
905 se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new,
910 acl = container_of(se_nacl, struct iscsi_node_acl, se_node_acl);
911 stats_cg = &se_nacl->acl_fabric_stat_group;
913 stats_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2,
915 if (!stats_cg->default_groups) {
916 pr_err("Unable to allocate memory for"
917 " stats_cg->default_groups\n");
918 core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1);
920 return ERR_PTR(-ENOMEM);
923 stats_cg->default_groups[0] = &acl->node_stat_grps.iscsi_sess_stats_group;
924 stats_cg->default_groups[1] = NULL;
925 config_group_init_type_name(&acl->node_stat_grps.iscsi_sess_stats_group,
926 "iscsi_sess_stats", &iscsi_stat_sess_cit);
931 static void lio_target_drop_nodeacl(
932 struct se_node_acl *se_nacl)
934 struct se_portal_group *se_tpg = se_nacl->se_tpg;
935 struct iscsi_node_acl *acl = container_of(se_nacl,
936 struct iscsi_node_acl, se_node_acl);
937 struct config_item *df_item;
938 struct config_group *stats_cg;
941 stats_cg = &acl->se_node_acl.acl_fabric_stat_group;
942 for (i = 0; stats_cg->default_groups[i]; i++) {
943 df_item = &stats_cg->default_groups[i]->cg_item;
944 stats_cg->default_groups[i] = NULL;
945 config_item_put(df_item);
947 kfree(stats_cg->default_groups);
949 core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1);
953 /* End items for lio_target_acl_cit */
955 /* Start items for lio_target_tpg_attrib_cit */
957 #define DEF_TPG_ATTRIB(name) \
959 static ssize_t iscsi_tpg_attrib_show_##name( \
960 struct se_portal_group *se_tpg, \
963 struct iscsi_portal_group *tpg = container_of(se_tpg, \
964 struct iscsi_portal_group, tpg_se_tpg); \
967 if (iscsit_get_tpg(tpg) < 0) \
970 rb = sprintf(page, "%u\n", tpg->tpg_attrib.name); \
971 iscsit_put_tpg(tpg); \
975 static ssize_t iscsi_tpg_attrib_store_##name( \
976 struct se_portal_group *se_tpg, \
980 struct iscsi_portal_group *tpg = container_of(se_tpg, \
981 struct iscsi_portal_group, tpg_se_tpg); \
985 if (iscsit_get_tpg(tpg) < 0) \
988 ret = kstrtou32(page, 0, &val); \
991 ret = iscsit_ta_##name(tpg, val); \
995 iscsit_put_tpg(tpg); \
998 iscsit_put_tpg(tpg); \
1002 #define TPG_ATTR(_name, _mode) TF_TPG_ATTRIB_ATTR(iscsi, _name, _mode);
1005 * Define iscsi_tpg_attrib_s_authentication
1007 DEF_TPG_ATTRIB(authentication);
1008 TPG_ATTR(authentication, S_IRUGO | S_IWUSR);
1010 * Define iscsi_tpg_attrib_s_login_timeout
1012 DEF_TPG_ATTRIB(login_timeout);
1013 TPG_ATTR(login_timeout, S_IRUGO | S_IWUSR);
1015 * Define iscsi_tpg_attrib_s_netif_timeout
1017 DEF_TPG_ATTRIB(netif_timeout);
1018 TPG_ATTR(netif_timeout, S_IRUGO | S_IWUSR);
1020 * Define iscsi_tpg_attrib_s_generate_node_acls
1022 DEF_TPG_ATTRIB(generate_node_acls);
1023 TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR);
1025 * Define iscsi_tpg_attrib_s_default_cmdsn_depth
1027 DEF_TPG_ATTRIB(default_cmdsn_depth);
1028 TPG_ATTR(default_cmdsn_depth, S_IRUGO | S_IWUSR);
1030 Define iscsi_tpg_attrib_s_cache_dynamic_acls
1032 DEF_TPG_ATTRIB(cache_dynamic_acls);
1033 TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR);
1035 * Define iscsi_tpg_attrib_s_demo_mode_write_protect
1037 DEF_TPG_ATTRIB(demo_mode_write_protect);
1038 TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR);
1040 * Define iscsi_tpg_attrib_s_prod_mode_write_protect
1042 DEF_TPG_ATTRIB(prod_mode_write_protect);
1043 TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR);
1045 * Define iscsi_tpg_attrib_s_demo_mode_discovery,
1047 DEF_TPG_ATTRIB(demo_mode_discovery);
1048 TPG_ATTR(demo_mode_discovery, S_IRUGO | S_IWUSR);
1050 * Define iscsi_tpg_attrib_s_default_erl
1052 DEF_TPG_ATTRIB(default_erl);
1053 TPG_ATTR(default_erl, S_IRUGO | S_IWUSR);
1055 static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
1056 &iscsi_tpg_attrib_authentication.attr,
1057 &iscsi_tpg_attrib_login_timeout.attr,
1058 &iscsi_tpg_attrib_netif_timeout.attr,
1059 &iscsi_tpg_attrib_generate_node_acls.attr,
1060 &iscsi_tpg_attrib_default_cmdsn_depth.attr,
1061 &iscsi_tpg_attrib_cache_dynamic_acls.attr,
1062 &iscsi_tpg_attrib_demo_mode_write_protect.attr,
1063 &iscsi_tpg_attrib_prod_mode_write_protect.attr,
1064 &iscsi_tpg_attrib_demo_mode_discovery.attr,
1065 &iscsi_tpg_attrib_default_erl.attr,
1069 /* End items for lio_target_tpg_attrib_cit */
1071 /* Start items for lio_target_tpg_auth_cit */
1073 #define __DEF_TPG_AUTH_STR(prefix, name, flags) \
1074 static ssize_t __iscsi_##prefix##_show_##name( \
1075 struct se_portal_group *se_tpg, \
1078 struct iscsi_portal_group *tpg = container_of(se_tpg, \
1079 struct iscsi_portal_group, tpg_se_tpg); \
1080 struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \
1082 if (!capable(CAP_SYS_ADMIN)) \
1085 return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \
1088 static ssize_t __iscsi_##prefix##_store_##name( \
1089 struct se_portal_group *se_tpg, \
1093 struct iscsi_portal_group *tpg = container_of(se_tpg, \
1094 struct iscsi_portal_group, tpg_se_tpg); \
1095 struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \
1097 if (!capable(CAP_SYS_ADMIN)) \
1100 snprintf(auth->name, sizeof(auth->name), "%s", page); \
1101 if (!(strncmp("NULL", auth->name, 4))) \
1102 auth->naf_flags &= ~flags; \
1104 auth->naf_flags |= flags; \
1106 if ((auth->naf_flags & NAF_USERID_IN_SET) && \
1107 (auth->naf_flags & NAF_PASSWORD_IN_SET)) \
1108 auth->authenticate_target = 1; \
1110 auth->authenticate_target = 0; \
1115 #define __DEF_TPG_AUTH_INT(prefix, name) \
1116 static ssize_t __iscsi_##prefix##_show_##name( \
1117 struct se_portal_group *se_tpg, \
1120 struct iscsi_portal_group *tpg = container_of(se_tpg, \
1121 struct iscsi_portal_group, tpg_se_tpg); \
1122 struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \
1124 if (!capable(CAP_SYS_ADMIN)) \
1127 return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \
1130 #define DEF_TPG_AUTH_STR(name, flags) \
1131 __DEF_TPG_AUTH_STR(tpg_auth, name, flags) \
1132 static ssize_t iscsi_tpg_auth_show_##name( \
1133 struct se_portal_group *se_tpg, \
1136 return __iscsi_tpg_auth_show_##name(se_tpg, page); \
1139 static ssize_t iscsi_tpg_auth_store_##name( \
1140 struct se_portal_group *se_tpg, \
1144 return __iscsi_tpg_auth_store_##name(se_tpg, page, count); \
1147 #define DEF_TPG_AUTH_INT(name) \
1148 __DEF_TPG_AUTH_INT(tpg_auth, name) \
1149 static ssize_t iscsi_tpg_auth_show_##name( \
1150 struct se_portal_group *se_tpg, \
1153 return __iscsi_tpg_auth_show_##name(se_tpg, page); \
1156 #define TPG_AUTH_ATTR(_name, _mode) TF_TPG_AUTH_ATTR(iscsi, _name, _mode);
1157 #define TPG_AUTH_ATTR_RO(_name) TF_TPG_AUTH_ATTR_RO(iscsi, _name);
1160 * * One-way authentication userid
1162 DEF_TPG_AUTH_STR(userid, NAF_USERID_SET);
1163 TPG_AUTH_ATTR(userid, S_IRUGO | S_IWUSR);
1165 * * One-way authentication password
1167 DEF_TPG_AUTH_STR(password, NAF_PASSWORD_SET);
1168 TPG_AUTH_ATTR(password, S_IRUGO | S_IWUSR);
1170 * * Enforce mutual authentication
1172 DEF_TPG_AUTH_INT(authenticate_target);
1173 TPG_AUTH_ATTR_RO(authenticate_target);
1175 * * Mutual authentication userid
1177 DEF_TPG_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
1178 TPG_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR);
1180 * * Mutual authentication password
1182 DEF_TPG_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
1183 TPG_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR);
1185 static struct configfs_attribute *lio_target_tpg_auth_attrs[] = {
1186 &iscsi_tpg_auth_userid.attr,
1187 &iscsi_tpg_auth_password.attr,
1188 &iscsi_tpg_auth_authenticate_target.attr,
1189 &iscsi_tpg_auth_userid_mutual.attr,
1190 &iscsi_tpg_auth_password_mutual.attr,
1194 /* End items for lio_target_tpg_auth_cit */
1196 /* Start items for lio_target_tpg_param_cit */
1198 #define DEF_TPG_PARAM(name) \
1199 static ssize_t iscsi_tpg_param_show_##name( \
1200 struct se_portal_group *se_tpg, \
1203 struct iscsi_portal_group *tpg = container_of(se_tpg, \
1204 struct iscsi_portal_group, tpg_se_tpg); \
1205 struct iscsi_param *param; \
1208 if (iscsit_get_tpg(tpg) < 0) \
1211 param = iscsi_find_param_from_key(__stringify(name), \
1214 iscsit_put_tpg(tpg); \
1217 rb = snprintf(page, PAGE_SIZE, "%s\n", param->value); \
1219 iscsit_put_tpg(tpg); \
1222 static ssize_t iscsi_tpg_param_store_##name( \
1223 struct se_portal_group *se_tpg, \
1227 struct iscsi_portal_group *tpg = container_of(se_tpg, \
1228 struct iscsi_portal_group, tpg_se_tpg); \
1232 buf = kzalloc(PAGE_SIZE, GFP_KERNEL); \
1235 len = snprintf(buf, PAGE_SIZE, "%s=%s", __stringify(name), page); \
1236 if (isspace(buf[len-1])) \
1237 buf[len-1] = '\0'; /* Kill newline */ \
1239 if (iscsit_get_tpg(tpg) < 0) { \
1244 ret = iscsi_change_param_value(buf, tpg->param_list, 1); \
1249 iscsit_put_tpg(tpg); \
1253 iscsit_put_tpg(tpg); \
1257 #define TPG_PARAM_ATTR(_name, _mode) TF_TPG_PARAM_ATTR(iscsi, _name, _mode);
1259 DEF_TPG_PARAM(AuthMethod);
1260 TPG_PARAM_ATTR(AuthMethod, S_IRUGO | S_IWUSR);
1262 DEF_TPG_PARAM(HeaderDigest);
1263 TPG_PARAM_ATTR(HeaderDigest, S_IRUGO | S_IWUSR);
1265 DEF_TPG_PARAM(DataDigest);
1266 TPG_PARAM_ATTR(DataDigest, S_IRUGO | S_IWUSR);
1268 DEF_TPG_PARAM(MaxConnections);
1269 TPG_PARAM_ATTR(MaxConnections, S_IRUGO | S_IWUSR);
1271 DEF_TPG_PARAM(TargetAlias);
1272 TPG_PARAM_ATTR(TargetAlias, S_IRUGO | S_IWUSR);
1274 DEF_TPG_PARAM(InitialR2T);
1275 TPG_PARAM_ATTR(InitialR2T, S_IRUGO | S_IWUSR);
1277 DEF_TPG_PARAM(ImmediateData);
1278 TPG_PARAM_ATTR(ImmediateData, S_IRUGO | S_IWUSR);
1280 DEF_TPG_PARAM(MaxRecvDataSegmentLength);
1281 TPG_PARAM_ATTR(MaxRecvDataSegmentLength, S_IRUGO | S_IWUSR);
1283 DEF_TPG_PARAM(MaxXmitDataSegmentLength);
1284 TPG_PARAM_ATTR(MaxXmitDataSegmentLength, S_IRUGO | S_IWUSR);
1286 DEF_TPG_PARAM(MaxBurstLength);
1287 TPG_PARAM_ATTR(MaxBurstLength, S_IRUGO | S_IWUSR);
1289 DEF_TPG_PARAM(FirstBurstLength);
1290 TPG_PARAM_ATTR(FirstBurstLength, S_IRUGO | S_IWUSR);
1292 DEF_TPG_PARAM(DefaultTime2Wait);
1293 TPG_PARAM_ATTR(DefaultTime2Wait, S_IRUGO | S_IWUSR);
1295 DEF_TPG_PARAM(DefaultTime2Retain);
1296 TPG_PARAM_ATTR(DefaultTime2Retain, S_IRUGO | S_IWUSR);
1298 DEF_TPG_PARAM(MaxOutstandingR2T);
1299 TPG_PARAM_ATTR(MaxOutstandingR2T, S_IRUGO | S_IWUSR);
1301 DEF_TPG_PARAM(DataPDUInOrder);
1302 TPG_PARAM_ATTR(DataPDUInOrder, S_IRUGO | S_IWUSR);
1304 DEF_TPG_PARAM(DataSequenceInOrder);
1305 TPG_PARAM_ATTR(DataSequenceInOrder, S_IRUGO | S_IWUSR);
1307 DEF_TPG_PARAM(ErrorRecoveryLevel);
1308 TPG_PARAM_ATTR(ErrorRecoveryLevel, S_IRUGO | S_IWUSR);
1310 DEF_TPG_PARAM(IFMarker);
1311 TPG_PARAM_ATTR(IFMarker, S_IRUGO | S_IWUSR);
1313 DEF_TPG_PARAM(OFMarker);
1314 TPG_PARAM_ATTR(OFMarker, S_IRUGO | S_IWUSR);
1316 DEF_TPG_PARAM(IFMarkInt);
1317 TPG_PARAM_ATTR(IFMarkInt, S_IRUGO | S_IWUSR);
1319 DEF_TPG_PARAM(OFMarkInt);
1320 TPG_PARAM_ATTR(OFMarkInt, S_IRUGO | S_IWUSR);
1322 static struct configfs_attribute *lio_target_tpg_param_attrs[] = {
1323 &iscsi_tpg_param_AuthMethod.attr,
1324 &iscsi_tpg_param_HeaderDigest.attr,
1325 &iscsi_tpg_param_DataDigest.attr,
1326 &iscsi_tpg_param_MaxConnections.attr,
1327 &iscsi_tpg_param_TargetAlias.attr,
1328 &iscsi_tpg_param_InitialR2T.attr,
1329 &iscsi_tpg_param_ImmediateData.attr,
1330 &iscsi_tpg_param_MaxRecvDataSegmentLength.attr,
1331 &iscsi_tpg_param_MaxXmitDataSegmentLength.attr,
1332 &iscsi_tpg_param_MaxBurstLength.attr,
1333 &iscsi_tpg_param_FirstBurstLength.attr,
1334 &iscsi_tpg_param_DefaultTime2Wait.attr,
1335 &iscsi_tpg_param_DefaultTime2Retain.attr,
1336 &iscsi_tpg_param_MaxOutstandingR2T.attr,
1337 &iscsi_tpg_param_DataPDUInOrder.attr,
1338 &iscsi_tpg_param_DataSequenceInOrder.attr,
1339 &iscsi_tpg_param_ErrorRecoveryLevel.attr,
1340 &iscsi_tpg_param_IFMarker.attr,
1341 &iscsi_tpg_param_OFMarker.attr,
1342 &iscsi_tpg_param_IFMarkInt.attr,
1343 &iscsi_tpg_param_OFMarkInt.attr,
1347 /* End items for lio_target_tpg_param_cit */
1349 /* Start items for lio_target_tpg_cit */
1351 static ssize_t lio_target_tpg_show_enable(
1352 struct se_portal_group *se_tpg,
1355 struct iscsi_portal_group *tpg = container_of(se_tpg,
1356 struct iscsi_portal_group, tpg_se_tpg);
1359 spin_lock(&tpg->tpg_state_lock);
1360 len = sprintf(page, "%d\n",
1361 (tpg->tpg_state == TPG_STATE_ACTIVE) ? 1 : 0);
1362 spin_unlock(&tpg->tpg_state_lock);
1367 static ssize_t lio_target_tpg_store_enable(
1368 struct se_portal_group *se_tpg,
1372 struct iscsi_portal_group *tpg = container_of(se_tpg,
1373 struct iscsi_portal_group, tpg_se_tpg);
1377 ret = kstrtou32(page, 0, &op);
1380 if ((op != 1) && (op != 0)) {
1381 pr_err("Illegal value for tpg_enable: %u\n", op);
1385 ret = iscsit_get_tpg(tpg);
1390 ret = iscsit_tpg_enable_portal_group(tpg);
1395 * iscsit_tpg_disable_portal_group() assumes force=1
1397 ret = iscsit_tpg_disable_portal_group(tpg, 1);
1402 iscsit_put_tpg(tpg);
1405 iscsit_put_tpg(tpg);
1409 TF_TPG_BASE_ATTR(lio_target, enable, S_IRUGO | S_IWUSR);
1411 static struct configfs_attribute *lio_target_tpg_attrs[] = {
1412 &lio_target_tpg_enable.attr,
1416 /* End items for lio_target_tpg_cit */
1418 /* Start items for lio_target_tiqn_cit */
1420 static struct se_portal_group *lio_target_tiqn_addtpg(
1422 struct config_group *group,
1425 struct iscsi_portal_group *tpg;
1426 struct iscsi_tiqn *tiqn;
1431 tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
1433 * Only tpgt_# directory groups can be created below
1434 * target/iscsi/iqn.superturodiskarry/
1436 tpgt_str = strstr(name, "tpgt_");
1438 pr_err("Unable to locate \"tpgt_#\" directory"
1442 tpgt_str += 5; /* Skip ahead of "tpgt_" */
1443 ret = kstrtou16(tpgt_str, 0, &tpgt);
1447 tpg = iscsit_alloc_portal_group(tiqn, tpgt);
1451 ret = core_tpg_register(
1452 &lio_target_fabric_configfs->tf_ops,
1453 wwn, &tpg->tpg_se_tpg, tpg,
1454 TRANSPORT_TPG_TYPE_NORMAL);
1458 ret = iscsit_tpg_add_portal_group(tiqn, tpg);
1462 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn);
1463 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated TPG: %s\n",
1465 return &tpg->tpg_se_tpg;
1467 core_tpg_deregister(&tpg->tpg_se_tpg);
1472 static void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg)
1474 struct iscsi_portal_group *tpg;
1475 struct iscsi_tiqn *tiqn;
1477 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
1478 tiqn = tpg->tpg_tiqn;
1480 * iscsit_tpg_del_portal_group() assumes force=1
1482 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> Releasing TPG\n");
1483 iscsit_tpg_del_portal_group(tiqn, tpg, 1);
1486 /* End items for lio_target_tiqn_cit */
1488 /* Start LIO-Target TIQN struct contig_item lio_target_cit */
1490 static ssize_t lio_target_wwn_show_attr_lio_version(
1491 struct target_fabric_configfs *tf,
1494 return sprintf(page, "Datera Inc. iSCSI Target "ISCSIT_VERSION"\n");
1497 TF_WWN_ATTR_RO(lio_target, lio_version);
1499 static struct configfs_attribute *lio_target_wwn_attrs[] = {
1500 &lio_target_wwn_lio_version.attr,
1504 static struct se_wwn *lio_target_call_coreaddtiqn(
1505 struct target_fabric_configfs *tf,
1506 struct config_group *group,
1509 struct config_group *stats_cg;
1510 struct iscsi_tiqn *tiqn;
1512 tiqn = iscsit_add_tiqn((unsigned char *)name);
1514 return ERR_CAST(tiqn);
1516 * Setup struct iscsi_wwn_stat_grps for se_wwn->fabric_stat_group.
1518 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group;
1520 stats_cg->default_groups = kmalloc(sizeof(struct config_group *) * 6,
1522 if (!stats_cg->default_groups) {
1523 pr_err("Unable to allocate memory for"
1524 " stats_cg->default_groups\n");
1525 iscsit_del_tiqn(tiqn);
1526 return ERR_PTR(-ENOMEM);
1529 stats_cg->default_groups[0] = &tiqn->tiqn_stat_grps.iscsi_instance_group;
1530 stats_cg->default_groups[1] = &tiqn->tiqn_stat_grps.iscsi_sess_err_group;
1531 stats_cg->default_groups[2] = &tiqn->tiqn_stat_grps.iscsi_tgt_attr_group;
1532 stats_cg->default_groups[3] = &tiqn->tiqn_stat_grps.iscsi_login_stats_group;
1533 stats_cg->default_groups[4] = &tiqn->tiqn_stat_grps.iscsi_logout_stats_group;
1534 stats_cg->default_groups[5] = NULL;
1535 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_instance_group,
1536 "iscsi_instance", &iscsi_stat_instance_cit);
1537 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_sess_err_group,
1538 "iscsi_sess_err", &iscsi_stat_sess_err_cit);
1539 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_tgt_attr_group,
1540 "iscsi_tgt_attr", &iscsi_stat_tgt_attr_cit);
1541 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_login_stats_group,
1542 "iscsi_login_stats", &iscsi_stat_login_cit);
1543 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_logout_stats_group,
1544 "iscsi_logout_stats", &iscsi_stat_logout_cit);
1546 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn);
1547 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated Node:"
1549 return &tiqn->tiqn_wwn;
1552 static void lio_target_call_coredeltiqn(
1555 struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
1556 struct config_item *df_item;
1557 struct config_group *stats_cg;
1560 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group;
1561 for (i = 0; stats_cg->default_groups[i]; i++) {
1562 df_item = &stats_cg->default_groups[i]->cg_item;
1563 stats_cg->default_groups[i] = NULL;
1564 config_item_put(df_item);
1566 kfree(stats_cg->default_groups);
1568 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s\n",
1570 iscsit_del_tiqn(tiqn);
1573 /* End LIO-Target TIQN struct contig_lio_target_cit */
1575 /* Start lio_target_discovery_auth_cit */
1577 #define DEF_DISC_AUTH_STR(name, flags) \
1578 __DEF_NACL_AUTH_STR(disc, name, flags) \
1579 static ssize_t iscsi_disc_show_##name( \
1580 struct target_fabric_configfs *tf, \
1583 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \
1586 static ssize_t iscsi_disc_store_##name( \
1587 struct target_fabric_configfs *tf, \
1591 return __iscsi_disc_store_##name(&iscsit_global->discovery_acl, \
1595 #define DEF_DISC_AUTH_INT(name) \
1596 __DEF_NACL_AUTH_INT(disc, name) \
1597 static ssize_t iscsi_disc_show_##name( \
1598 struct target_fabric_configfs *tf, \
1601 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \
1605 #define DISC_AUTH_ATTR(_name, _mode) TF_DISC_ATTR(iscsi, _name, _mode)
1606 #define DISC_AUTH_ATTR_RO(_name) TF_DISC_ATTR_RO(iscsi, _name)
1609 * One-way authentication userid
1611 DEF_DISC_AUTH_STR(userid, NAF_USERID_SET);
1612 DISC_AUTH_ATTR(userid, S_IRUGO | S_IWUSR);
1614 * One-way authentication password
1616 DEF_DISC_AUTH_STR(password, NAF_PASSWORD_SET);
1617 DISC_AUTH_ATTR(password, S_IRUGO | S_IWUSR);
1619 * Enforce mutual authentication
1621 DEF_DISC_AUTH_INT(authenticate_target);
1622 DISC_AUTH_ATTR_RO(authenticate_target);
1624 * Mutual authentication userid
1626 DEF_DISC_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
1627 DISC_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR);
1629 * Mutual authentication password
1631 DEF_DISC_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
1632 DISC_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR);
1635 * enforce_discovery_auth
1637 static ssize_t iscsi_disc_show_enforce_discovery_auth(
1638 struct target_fabric_configfs *tf,
1641 struct iscsi_node_auth *discovery_auth = &iscsit_global->discovery_acl.node_auth;
1643 return sprintf(page, "%d\n", discovery_auth->enforce_discovery_auth);
1646 static ssize_t iscsi_disc_store_enforce_discovery_auth(
1647 struct target_fabric_configfs *tf,
1651 struct iscsi_param *param;
1652 struct iscsi_portal_group *discovery_tpg = iscsit_global->discovery_tpg;
1656 err = kstrtou32(page, 0, &op);
1659 if ((op != 1) && (op != 0)) {
1660 pr_err("Illegal value for enforce_discovery_auth:"
1665 if (!discovery_tpg) {
1666 pr_err("iscsit_global->discovery_tpg is NULL\n");
1670 param = iscsi_find_param_from_key(AUTHMETHOD,
1671 discovery_tpg->param_list);
1677 * Reset the AuthMethod key to CHAP.
1679 if (iscsi_update_param_value(param, CHAP) < 0)
1682 discovery_tpg->tpg_attrib.authentication = 1;
1683 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 1;
1684 pr_debug("LIO-CORE[0] Successfully enabled"
1685 " authentication enforcement for iSCSI"
1686 " Discovery TPG\n");
1689 * Reset the AuthMethod key to CHAP,None
1691 if (iscsi_update_param_value(param, "CHAP,None") < 0)
1694 discovery_tpg->tpg_attrib.authentication = 0;
1695 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 0;
1696 pr_debug("LIO-CORE[0] Successfully disabled"
1697 " authentication enforcement for iSCSI"
1698 " Discovery TPG\n");
1704 DISC_AUTH_ATTR(enforce_discovery_auth, S_IRUGO | S_IWUSR);
1706 static struct configfs_attribute *lio_target_discovery_auth_attrs[] = {
1707 &iscsi_disc_userid.attr,
1708 &iscsi_disc_password.attr,
1709 &iscsi_disc_authenticate_target.attr,
1710 &iscsi_disc_userid_mutual.attr,
1711 &iscsi_disc_password_mutual.attr,
1712 &iscsi_disc_enforce_discovery_auth.attr,
1716 /* End lio_target_discovery_auth_cit */
1718 /* Start functions for target_core_fabric_ops */
1720 static char *iscsi_get_fabric_name(void)
1725 static u32 iscsi_get_task_tag(struct se_cmd *se_cmd)
1727 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1729 /* only used for printks or comparism with ->ref_task_tag */
1730 return (__force u32)cmd->init_task_tag;
1733 static int iscsi_get_cmd_state(struct se_cmd *se_cmd)
1735 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1737 return cmd->i_state;
1740 static u32 lio_sess_get_index(struct se_session *se_sess)
1742 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1744 return sess->session_index;
1747 static u32 lio_sess_get_initiator_sid(
1748 struct se_session *se_sess,
1752 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1754 * iSCSI Initiator Session Identifier from RFC-3720.
1756 return snprintf(buf, size, "%02x%02x%02x%02x%02x%02x",
1757 sess->isid[0], sess->isid[1], sess->isid[2],
1758 sess->isid[3], sess->isid[4], sess->isid[5]);
1761 static int lio_queue_data_in(struct se_cmd *se_cmd)
1763 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1765 cmd->i_state = ISTATE_SEND_DATAIN;
1766 cmd->conn->conn_transport->iscsit_queue_data_in(cmd->conn, cmd);
1771 static int lio_write_pending(struct se_cmd *se_cmd)
1773 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1774 struct iscsi_conn *conn = cmd->conn;
1776 if (!cmd->immediate_data && !cmd->unsolicited_data)
1777 return conn->conn_transport->iscsit_get_dataout(conn, cmd, false);
1782 static int lio_write_pending_status(struct se_cmd *se_cmd)
1784 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1787 spin_lock_bh(&cmd->istate_lock);
1788 ret = !(cmd->cmd_flags & ICF_GOT_LAST_DATAOUT);
1789 spin_unlock_bh(&cmd->istate_lock);
1794 static int lio_queue_status(struct se_cmd *se_cmd)
1796 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1798 cmd->i_state = ISTATE_SEND_STATUS;
1800 if (cmd->se_cmd.scsi_status || cmd->sense_reason) {
1801 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
1804 cmd->conn->conn_transport->iscsit_queue_status(cmd->conn, cmd);
1809 static void lio_queue_tm_rsp(struct se_cmd *se_cmd)
1811 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1813 cmd->i_state = ISTATE_SEND_TASKMGTRSP;
1814 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
1817 static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg)
1819 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1821 return &tpg->tpg_tiqn->tiqn[0];
1824 static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg)
1826 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1831 static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg)
1833 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1835 return tpg->tpg_attrib.default_cmdsn_depth;
1838 static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg)
1840 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1842 return tpg->tpg_attrib.generate_node_acls;
1845 static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg)
1847 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1849 return tpg->tpg_attrib.cache_dynamic_acls;
1852 static int lio_tpg_check_demo_mode_write_protect(
1853 struct se_portal_group *se_tpg)
1855 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1857 return tpg->tpg_attrib.demo_mode_write_protect;
1860 static int lio_tpg_check_prod_mode_write_protect(
1861 struct se_portal_group *se_tpg)
1863 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1865 return tpg->tpg_attrib.prod_mode_write_protect;
1868 static void lio_tpg_release_fabric_acl(
1869 struct se_portal_group *se_tpg,
1870 struct se_node_acl *se_acl)
1872 struct iscsi_node_acl *acl = container_of(se_acl,
1873 struct iscsi_node_acl, se_node_acl);
1878 * Called with spin_lock_bh(struct se_portal_group->session_lock) held..
1880 * Also, this function calls iscsit_inc_session_usage_count() on the
1881 * struct iscsi_session in question.
1883 static int lio_tpg_shutdown_session(struct se_session *se_sess)
1885 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1887 spin_lock(&sess->conn_lock);
1888 if (atomic_read(&sess->session_fall_back_to_erl0) ||
1889 atomic_read(&sess->session_logout) ||
1890 (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) {
1891 spin_unlock(&sess->conn_lock);
1894 atomic_set(&sess->session_reinstatement, 1);
1895 spin_unlock(&sess->conn_lock);
1897 iscsit_stop_time2retain_timer(sess);
1898 iscsit_stop_session(sess, 1, 1);
1904 * Calls iscsit_dec_session_usage_count() as inverse of
1905 * lio_tpg_shutdown_session()
1907 static void lio_tpg_close_session(struct se_session *se_sess)
1909 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1911 * If the iSCSI Session for the iSCSI Initiator Node exists,
1912 * forcefully shutdown the iSCSI NEXUS.
1914 iscsit_close_session(sess);
1917 static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg)
1919 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1921 return tpg->tpg_tiqn->tiqn_index;
1924 static void lio_set_default_node_attributes(struct se_node_acl *se_acl)
1926 struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl,
1928 struct se_portal_group *se_tpg = se_acl->se_tpg;
1929 struct iscsi_portal_group *tpg = container_of(se_tpg,
1930 struct iscsi_portal_group, tpg_se_tpg);
1932 acl->node_attrib.nacl = acl;
1933 iscsit_set_default_node_attribues(acl, tpg);
1936 static int lio_check_stop_free(struct se_cmd *se_cmd)
1938 return target_put_sess_cmd(se_cmd->se_sess, se_cmd);
1941 static void lio_release_cmd(struct se_cmd *se_cmd)
1943 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1945 pr_debug("Entering lio_release_cmd for se_cmd: %p\n", se_cmd);
1946 iscsit_release_cmd(cmd);
1949 /* End functions for target_core_fabric_ops */
1951 int iscsi_target_register_configfs(void)
1953 struct target_fabric_configfs *fabric;
1956 lio_target_fabric_configfs = NULL;
1957 fabric = target_fabric_configfs_init(THIS_MODULE, "iscsi");
1958 if (IS_ERR(fabric)) {
1959 pr_err("target_fabric_configfs_init() for"
1960 " LIO-Target failed!\n");
1961 return PTR_ERR(fabric);
1964 * Setup the fabric API of function pointers used by target_core_mod..
1966 fabric->tf_ops.get_fabric_name = &iscsi_get_fabric_name;
1967 fabric->tf_ops.get_fabric_proto_ident = &iscsi_get_fabric_proto_ident;
1968 fabric->tf_ops.tpg_get_wwn = &lio_tpg_get_endpoint_wwn;
1969 fabric->tf_ops.tpg_get_tag = &lio_tpg_get_tag;
1970 fabric->tf_ops.tpg_get_default_depth = &lio_tpg_get_default_depth;
1971 fabric->tf_ops.tpg_get_pr_transport_id = &iscsi_get_pr_transport_id;
1972 fabric->tf_ops.tpg_get_pr_transport_id_len =
1973 &iscsi_get_pr_transport_id_len;
1974 fabric->tf_ops.tpg_parse_pr_out_transport_id =
1975 &iscsi_parse_pr_out_transport_id;
1976 fabric->tf_ops.tpg_check_demo_mode = &lio_tpg_check_demo_mode;
1977 fabric->tf_ops.tpg_check_demo_mode_cache =
1978 &lio_tpg_check_demo_mode_cache;
1979 fabric->tf_ops.tpg_check_demo_mode_write_protect =
1980 &lio_tpg_check_demo_mode_write_protect;
1981 fabric->tf_ops.tpg_check_prod_mode_write_protect =
1982 &lio_tpg_check_prod_mode_write_protect;
1983 fabric->tf_ops.tpg_alloc_fabric_acl = &lio_tpg_alloc_fabric_acl;
1984 fabric->tf_ops.tpg_release_fabric_acl = &lio_tpg_release_fabric_acl;
1985 fabric->tf_ops.tpg_get_inst_index = &lio_tpg_get_inst_index;
1986 fabric->tf_ops.check_stop_free = &lio_check_stop_free,
1987 fabric->tf_ops.release_cmd = &lio_release_cmd;
1988 fabric->tf_ops.shutdown_session = &lio_tpg_shutdown_session;
1989 fabric->tf_ops.close_session = &lio_tpg_close_session;
1990 fabric->tf_ops.sess_get_index = &lio_sess_get_index;
1991 fabric->tf_ops.sess_get_initiator_sid = &lio_sess_get_initiator_sid;
1992 fabric->tf_ops.write_pending = &lio_write_pending;
1993 fabric->tf_ops.write_pending_status = &lio_write_pending_status;
1994 fabric->tf_ops.set_default_node_attributes =
1995 &lio_set_default_node_attributes;
1996 fabric->tf_ops.get_task_tag = &iscsi_get_task_tag;
1997 fabric->tf_ops.get_cmd_state = &iscsi_get_cmd_state;
1998 fabric->tf_ops.queue_data_in = &lio_queue_data_in;
1999 fabric->tf_ops.queue_status = &lio_queue_status;
2000 fabric->tf_ops.queue_tm_rsp = &lio_queue_tm_rsp;
2002 * Setup function pointers for generic logic in target_core_fabric_configfs.c
2004 fabric->tf_ops.fabric_make_wwn = &lio_target_call_coreaddtiqn;
2005 fabric->tf_ops.fabric_drop_wwn = &lio_target_call_coredeltiqn;
2006 fabric->tf_ops.fabric_make_tpg = &lio_target_tiqn_addtpg;
2007 fabric->tf_ops.fabric_drop_tpg = &lio_target_tiqn_deltpg;
2008 fabric->tf_ops.fabric_post_link = NULL;
2009 fabric->tf_ops.fabric_pre_unlink = NULL;
2010 fabric->tf_ops.fabric_make_np = &lio_target_call_addnptotpg;
2011 fabric->tf_ops.fabric_drop_np = &lio_target_call_delnpfromtpg;
2012 fabric->tf_ops.fabric_make_nodeacl = &lio_target_make_nodeacl;
2013 fabric->tf_ops.fabric_drop_nodeacl = &lio_target_drop_nodeacl;
2015 * Setup default attribute lists for various fabric->tf_cit_tmpl
2016 * sturct config_item_type's
2018 fabric->tf_cit_tmpl.tfc_discovery_cit.ct_attrs = lio_target_discovery_auth_attrs;
2019 fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = lio_target_wwn_attrs;
2020 fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = lio_target_tpg_attrs;
2021 fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs = lio_target_tpg_attrib_attrs;
2022 fabric->tf_cit_tmpl.tfc_tpg_auth_cit.ct_attrs = lio_target_tpg_auth_attrs;
2023 fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = lio_target_tpg_param_attrs;
2024 fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = lio_target_portal_attrs;
2025 fabric->tf_cit_tmpl.tfc_tpg_nacl_base_cit.ct_attrs = lio_target_initiator_attrs;
2026 fabric->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit.ct_attrs = lio_target_nacl_attrib_attrs;
2027 fabric->tf_cit_tmpl.tfc_tpg_nacl_auth_cit.ct_attrs = lio_target_nacl_auth_attrs;
2028 fabric->tf_cit_tmpl.tfc_tpg_nacl_param_cit.ct_attrs = lio_target_nacl_param_attrs;
2030 ret = target_fabric_configfs_register(fabric);
2032 pr_err("target_fabric_configfs_register() for"
2033 " LIO-Target failed!\n");
2034 target_fabric_configfs_free(fabric);
2038 lio_target_fabric_configfs = fabric;
2039 pr_debug("LIO_TARGET[0] - Set fabric ->"
2040 " lio_target_fabric_configfs\n");
2045 void iscsi_target_deregister_configfs(void)
2047 if (!lio_target_fabric_configfs)
2050 * Shutdown discovery sessions and disable discovery TPG
2052 if (iscsit_global->discovery_tpg)
2053 iscsit_tpg_disable_portal_group(iscsit_global->discovery_tpg, 1);
2055 target_fabric_configfs_deregister(lio_target_fabric_configfs);
2056 lio_target_fabric_configfs = NULL;
2057 pr_debug("LIO_TARGET[0] - Cleared"
2058 " lio_target_fabric_configfs\n");