1 /*******************************************************************************
2 * This file contains the configfs implementation for iSCSI Target mode
3 * from the LIO-Target Project.
5 * \u00a9 Copyright 2007-2011 RisingTide Systems LLC.
7 * Licensed to the Linux Foundation under the General Public License (GPL) version 2.
9 * Author: Nicholas A. Bellinger <nab@linux-iscsi.org>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 ****************************************************************************/
22 #include <linux/configfs.h>
23 #include <linux/export.h>
24 #include <linux/inet.h>
25 #include <target/target_core_base.h>
26 #include <target/target_core_fabric.h>
27 #include <target/target_core_fabric_configfs.h>
28 #include <target/target_core_configfs.h>
29 #include <target/configfs_macros.h>
30 #include <target/iscsi/iscsi_transport.h>
32 #include "iscsi_target_core.h"
33 #include "iscsi_target_parameters.h"
34 #include "iscsi_target_device.h"
35 #include "iscsi_target_erl0.h"
36 #include "iscsi_target_nodeattrib.h"
37 #include "iscsi_target_tpg.h"
38 #include "iscsi_target_util.h"
39 #include "iscsi_target.h"
40 #include "iscsi_target_stat.h"
41 #include "iscsi_target_configfs.h"
43 struct target_fabric_configfs *lio_target_fabric_configfs;
45 struct lio_target_configfs_attribute {
46 struct configfs_attribute attr;
47 ssize_t (*show)(void *, char *);
48 ssize_t (*store)(void *, const char *, size_t);
51 /* Start items for lio_target_portal_cit */
53 static ssize_t lio_target_np_show_sctp(
54 struct se_tpg_np *se_tpg_np,
57 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np,
58 struct iscsi_tpg_np, se_tpg_np);
59 struct iscsi_tpg_np *tpg_np_sctp;
62 tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP);
64 rb = sprintf(page, "1\n");
66 rb = sprintf(page, "0\n");
71 static ssize_t lio_target_np_store_sctp(
72 struct se_tpg_np *se_tpg_np,
77 struct iscsi_portal_group *tpg;
78 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np,
79 struct iscsi_tpg_np, se_tpg_np);
80 struct iscsi_tpg_np *tpg_np_sctp = NULL;
85 op = simple_strtoul(page, &endptr, 0);
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 = strict_strtoul(port_str, 0, &port);
268 pr_err("strict_strtoul() 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 = strict_strtoul(port_str, 0, &port);
293 pr_err("strict_strtoul() 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", ISCSI_NODE_ATTRIB(nacl)->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, \
389 val = simple_strtoul(page, &endptr, 0); \
390 ret = iscsit_na_##name(nacl, val); \
397 #define NACL_ATTR(_name, _mode) TF_NACL_ATTRIB_ATTR(iscsi, _name, _mode);
399 * Define iscsi_node_attrib_s_dataout_timeout
401 DEF_NACL_ATTRIB(dataout_timeout);
402 NACL_ATTR(dataout_timeout, S_IRUGO | S_IWUSR);
404 * Define iscsi_node_attrib_s_dataout_timeout_retries
406 DEF_NACL_ATTRIB(dataout_timeout_retries);
407 NACL_ATTR(dataout_timeout_retries, S_IRUGO | S_IWUSR);
409 * Define iscsi_node_attrib_s_default_erl
411 DEF_NACL_ATTRIB(default_erl);
412 NACL_ATTR(default_erl, S_IRUGO | S_IWUSR);
414 * Define iscsi_node_attrib_s_nopin_timeout
416 DEF_NACL_ATTRIB(nopin_timeout);
417 NACL_ATTR(nopin_timeout, S_IRUGO | S_IWUSR);
419 * Define iscsi_node_attrib_s_nopin_response_timeout
421 DEF_NACL_ATTRIB(nopin_response_timeout);
422 NACL_ATTR(nopin_response_timeout, S_IRUGO | S_IWUSR);
424 * Define iscsi_node_attrib_s_random_datain_pdu_offsets
426 DEF_NACL_ATTRIB(random_datain_pdu_offsets);
427 NACL_ATTR(random_datain_pdu_offsets, S_IRUGO | S_IWUSR);
429 * Define iscsi_node_attrib_s_random_datain_seq_offsets
431 DEF_NACL_ATTRIB(random_datain_seq_offsets);
432 NACL_ATTR(random_datain_seq_offsets, S_IRUGO | S_IWUSR);
434 * Define iscsi_node_attrib_s_random_r2t_offsets
436 DEF_NACL_ATTRIB(random_r2t_offsets);
437 NACL_ATTR(random_r2t_offsets, S_IRUGO | S_IWUSR);
439 static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = {
440 &iscsi_nacl_attrib_dataout_timeout.attr,
441 &iscsi_nacl_attrib_dataout_timeout_retries.attr,
442 &iscsi_nacl_attrib_default_erl.attr,
443 &iscsi_nacl_attrib_nopin_timeout.attr,
444 &iscsi_nacl_attrib_nopin_response_timeout.attr,
445 &iscsi_nacl_attrib_random_datain_pdu_offsets.attr,
446 &iscsi_nacl_attrib_random_datain_seq_offsets.attr,
447 &iscsi_nacl_attrib_random_r2t_offsets.attr,
451 /* End items for lio_target_nacl_attrib_cit */
453 /* Start items for lio_target_nacl_auth_cit */
455 #define __DEF_NACL_AUTH_STR(prefix, name, flags) \
456 static ssize_t __iscsi_##prefix##_show_##name( \
457 struct iscsi_node_acl *nacl, \
460 struct iscsi_node_auth *auth = &nacl->node_auth; \
462 if (!capable(CAP_SYS_ADMIN)) \
464 return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \
467 static ssize_t __iscsi_##prefix##_store_##name( \
468 struct iscsi_node_acl *nacl, \
472 struct iscsi_node_auth *auth = &nacl->node_auth; \
474 if (!capable(CAP_SYS_ADMIN)) \
477 snprintf(auth->name, PAGE_SIZE, "%s", page); \
478 if (!strncmp("NULL", auth->name, 4)) \
479 auth->naf_flags &= ~flags; \
481 auth->naf_flags |= flags; \
483 if ((auth->naf_flags & NAF_USERID_IN_SET) && \
484 (auth->naf_flags & NAF_PASSWORD_IN_SET)) \
485 auth->authenticate_target = 1; \
487 auth->authenticate_target = 0; \
492 #define __DEF_NACL_AUTH_INT(prefix, name) \
493 static ssize_t __iscsi_##prefix##_show_##name( \
494 struct iscsi_node_acl *nacl, \
497 struct iscsi_node_auth *auth = &nacl->node_auth; \
499 if (!capable(CAP_SYS_ADMIN)) \
502 return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \
505 #define DEF_NACL_AUTH_STR(name, flags) \
506 __DEF_NACL_AUTH_STR(nacl_auth, name, flags) \
507 static ssize_t iscsi_nacl_auth_show_##name( \
508 struct se_node_acl *nacl, \
511 return __iscsi_nacl_auth_show_##name(container_of(nacl, \
512 struct iscsi_node_acl, se_node_acl), page); \
514 static ssize_t iscsi_nacl_auth_store_##name( \
515 struct se_node_acl *nacl, \
519 return __iscsi_nacl_auth_store_##name(container_of(nacl, \
520 struct iscsi_node_acl, se_node_acl), page, count); \
523 #define DEF_NACL_AUTH_INT(name) \
524 __DEF_NACL_AUTH_INT(nacl_auth, name) \
525 static ssize_t iscsi_nacl_auth_show_##name( \
526 struct se_node_acl *nacl, \
529 return __iscsi_nacl_auth_show_##name(container_of(nacl, \
530 struct iscsi_node_acl, se_node_acl), page); \
533 #define AUTH_ATTR(_name, _mode) TF_NACL_AUTH_ATTR(iscsi, _name, _mode);
534 #define AUTH_ATTR_RO(_name) TF_NACL_AUTH_ATTR_RO(iscsi, _name);
537 * One-way authentication userid
539 DEF_NACL_AUTH_STR(userid, NAF_USERID_SET);
540 AUTH_ATTR(userid, S_IRUGO | S_IWUSR);
542 * One-way authentication password
544 DEF_NACL_AUTH_STR(password, NAF_PASSWORD_SET);
545 AUTH_ATTR(password, S_IRUGO | S_IWUSR);
547 * Enforce mutual authentication
549 DEF_NACL_AUTH_INT(authenticate_target);
550 AUTH_ATTR_RO(authenticate_target);
552 * Mutual authentication userid
554 DEF_NACL_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
555 AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR);
557 * Mutual authentication password
559 DEF_NACL_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
560 AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR);
562 static struct configfs_attribute *lio_target_nacl_auth_attrs[] = {
563 &iscsi_nacl_auth_userid.attr,
564 &iscsi_nacl_auth_password.attr,
565 &iscsi_nacl_auth_authenticate_target.attr,
566 &iscsi_nacl_auth_userid_mutual.attr,
567 &iscsi_nacl_auth_password_mutual.attr,
571 /* End items for lio_target_nacl_auth_cit */
573 /* Start items for lio_target_nacl_param_cit */
575 #define DEF_NACL_PARAM(name) \
576 static ssize_t iscsi_nacl_param_show_##name( \
577 struct se_node_acl *se_nacl, \
580 struct iscsi_session *sess; \
581 struct se_session *se_sess; \
584 spin_lock_bh(&se_nacl->nacl_sess_lock); \
585 se_sess = se_nacl->nacl_sess; \
587 rb = snprintf(page, PAGE_SIZE, \
588 "No Active iSCSI Session\n"); \
590 sess = se_sess->fabric_sess_ptr; \
591 rb = snprintf(page, PAGE_SIZE, "%u\n", \
592 (u32)sess->sess_ops->name); \
594 spin_unlock_bh(&se_nacl->nacl_sess_lock); \
599 #define NACL_PARAM_ATTR(_name) TF_NACL_PARAM_ATTR_RO(iscsi, _name);
601 DEF_NACL_PARAM(MaxConnections);
602 NACL_PARAM_ATTR(MaxConnections);
604 DEF_NACL_PARAM(InitialR2T);
605 NACL_PARAM_ATTR(InitialR2T);
607 DEF_NACL_PARAM(ImmediateData);
608 NACL_PARAM_ATTR(ImmediateData);
610 DEF_NACL_PARAM(MaxBurstLength);
611 NACL_PARAM_ATTR(MaxBurstLength);
613 DEF_NACL_PARAM(FirstBurstLength);
614 NACL_PARAM_ATTR(FirstBurstLength);
616 DEF_NACL_PARAM(DefaultTime2Wait);
617 NACL_PARAM_ATTR(DefaultTime2Wait);
619 DEF_NACL_PARAM(DefaultTime2Retain);
620 NACL_PARAM_ATTR(DefaultTime2Retain);
622 DEF_NACL_PARAM(MaxOutstandingR2T);
623 NACL_PARAM_ATTR(MaxOutstandingR2T);
625 DEF_NACL_PARAM(DataPDUInOrder);
626 NACL_PARAM_ATTR(DataPDUInOrder);
628 DEF_NACL_PARAM(DataSequenceInOrder);
629 NACL_PARAM_ATTR(DataSequenceInOrder);
631 DEF_NACL_PARAM(ErrorRecoveryLevel);
632 NACL_PARAM_ATTR(ErrorRecoveryLevel);
634 static struct configfs_attribute *lio_target_nacl_param_attrs[] = {
635 &iscsi_nacl_param_MaxConnections.attr,
636 &iscsi_nacl_param_InitialR2T.attr,
637 &iscsi_nacl_param_ImmediateData.attr,
638 &iscsi_nacl_param_MaxBurstLength.attr,
639 &iscsi_nacl_param_FirstBurstLength.attr,
640 &iscsi_nacl_param_DefaultTime2Wait.attr,
641 &iscsi_nacl_param_DefaultTime2Retain.attr,
642 &iscsi_nacl_param_MaxOutstandingR2T.attr,
643 &iscsi_nacl_param_DataPDUInOrder.attr,
644 &iscsi_nacl_param_DataSequenceInOrder.attr,
645 &iscsi_nacl_param_ErrorRecoveryLevel.attr,
649 /* End items for lio_target_nacl_param_cit */
651 /* Start items for lio_target_acl_cit */
653 static ssize_t lio_target_nacl_show_info(
654 struct se_node_acl *se_nacl,
657 struct iscsi_session *sess;
658 struct iscsi_conn *conn;
659 struct se_session *se_sess;
662 spin_lock_bh(&se_nacl->nacl_sess_lock);
663 se_sess = se_nacl->nacl_sess;
665 rb += sprintf(page+rb, "No active iSCSI Session for Initiator"
666 " Endpoint: %s\n", se_nacl->initiatorname);
668 sess = se_sess->fabric_sess_ptr;
670 if (sess->sess_ops->InitiatorName)
671 rb += sprintf(page+rb, "InitiatorName: %s\n",
672 sess->sess_ops->InitiatorName);
673 if (sess->sess_ops->InitiatorAlias)
674 rb += sprintf(page+rb, "InitiatorAlias: %s\n",
675 sess->sess_ops->InitiatorAlias);
677 rb += sprintf(page+rb, "LIO Session ID: %u "
678 "ISID: 0x%02x %02x %02x %02x %02x %02x "
679 "TSIH: %hu ", sess->sid,
680 sess->isid[0], sess->isid[1], sess->isid[2],
681 sess->isid[3], sess->isid[4], sess->isid[5],
683 rb += sprintf(page+rb, "SessionType: %s\n",
684 (sess->sess_ops->SessionType) ?
685 "Discovery" : "Normal");
686 rb += sprintf(page+rb, "Session State: ");
687 switch (sess->session_state) {
688 case TARG_SESS_STATE_FREE:
689 rb += sprintf(page+rb, "TARG_SESS_FREE\n");
691 case TARG_SESS_STATE_ACTIVE:
692 rb += sprintf(page+rb, "TARG_SESS_STATE_ACTIVE\n");
694 case TARG_SESS_STATE_LOGGED_IN:
695 rb += sprintf(page+rb, "TARG_SESS_STATE_LOGGED_IN\n");
697 case TARG_SESS_STATE_FAILED:
698 rb += sprintf(page+rb, "TARG_SESS_STATE_FAILED\n");
700 case TARG_SESS_STATE_IN_CONTINUE:
701 rb += sprintf(page+rb, "TARG_SESS_STATE_IN_CONTINUE\n");
704 rb += sprintf(page+rb, "ERROR: Unknown Session"
709 rb += sprintf(page+rb, "---------------------[iSCSI Session"
710 " Values]-----------------------\n");
711 rb += sprintf(page+rb, " CmdSN/WR : CmdSN/WC : ExpCmdSN"
712 " : MaxCmdSN : ITT : TTT\n");
713 rb += sprintf(page+rb, " 0x%08x 0x%08x 0x%08x 0x%08x"
716 (sess->max_cmd_sn - sess->exp_cmd_sn) + 1,
717 sess->exp_cmd_sn, sess->max_cmd_sn,
718 sess->init_task_tag, sess->targ_xfer_tag);
719 rb += sprintf(page+rb, "----------------------[iSCSI"
720 " Connections]-------------------------\n");
722 spin_lock(&sess->conn_lock);
723 list_for_each_entry(conn, &sess->sess_conn_list, conn_list) {
724 rb += sprintf(page+rb, "CID: %hu Connection"
725 " State: ", conn->cid);
726 switch (conn->conn_state) {
727 case TARG_CONN_STATE_FREE:
728 rb += sprintf(page+rb,
729 "TARG_CONN_STATE_FREE\n");
731 case TARG_CONN_STATE_XPT_UP:
732 rb += sprintf(page+rb,
733 "TARG_CONN_STATE_XPT_UP\n");
735 case TARG_CONN_STATE_IN_LOGIN:
736 rb += sprintf(page+rb,
737 "TARG_CONN_STATE_IN_LOGIN\n");
739 case TARG_CONN_STATE_LOGGED_IN:
740 rb += sprintf(page+rb,
741 "TARG_CONN_STATE_LOGGED_IN\n");
743 case TARG_CONN_STATE_IN_LOGOUT:
744 rb += sprintf(page+rb,
745 "TARG_CONN_STATE_IN_LOGOUT\n");
747 case TARG_CONN_STATE_LOGOUT_REQUESTED:
748 rb += sprintf(page+rb,
749 "TARG_CONN_STATE_LOGOUT_REQUESTED\n");
751 case TARG_CONN_STATE_CLEANUP_WAIT:
752 rb += sprintf(page+rb,
753 "TARG_CONN_STATE_CLEANUP_WAIT\n");
756 rb += sprintf(page+rb,
757 "ERROR: Unknown Connection State!\n");
761 rb += sprintf(page+rb, " Address %s %s", conn->login_ip,
762 (conn->network_transport == ISCSI_TCP) ?
764 rb += sprintf(page+rb, " StatSN: 0x%08x\n",
767 spin_unlock(&sess->conn_lock);
769 spin_unlock_bh(&se_nacl->nacl_sess_lock);
774 TF_NACL_BASE_ATTR_RO(lio_target, info);
776 static ssize_t lio_target_nacl_show_cmdsn_depth(
777 struct se_node_acl *se_nacl,
780 return sprintf(page, "%u\n", se_nacl->queue_depth);
783 static ssize_t lio_target_nacl_store_cmdsn_depth(
784 struct se_node_acl *se_nacl,
788 struct se_portal_group *se_tpg = se_nacl->se_tpg;
789 struct iscsi_portal_group *tpg = container_of(se_tpg,
790 struct iscsi_portal_group, tpg_se_tpg);
791 struct config_item *acl_ci, *tpg_ci, *wwn_ci;
796 cmdsn_depth = simple_strtoul(page, &endptr, 0);
797 if (cmdsn_depth > TA_DEFAULT_CMDSN_DEPTH_MAX) {
798 pr_err("Passed cmdsn_depth: %u exceeds"
799 " TA_DEFAULT_CMDSN_DEPTH_MAX: %u\n", cmdsn_depth,
800 TA_DEFAULT_CMDSN_DEPTH_MAX);
803 acl_ci = &se_nacl->acl_group.cg_item;
805 pr_err("Unable to locatel acl_ci\n");
808 tpg_ci = &acl_ci->ci_parent->ci_group->cg_item;
810 pr_err("Unable to locate tpg_ci\n");
813 wwn_ci = &tpg_ci->ci_group->cg_item;
815 pr_err("Unable to locate config_item wwn_ci\n");
819 if (iscsit_get_tpg(tpg) < 0)
822 * iscsit_tpg_set_initiator_node_queue_depth() assumes force=1
824 ret = iscsit_tpg_set_initiator_node_queue_depth(tpg,
825 config_item_name(acl_ci), cmdsn_depth, 1);
827 pr_debug("LIO_Target_ConfigFS: %s/%s Set CmdSN Window: %u for"
828 "InitiatorName: %s\n", config_item_name(wwn_ci),
829 config_item_name(tpg_ci), cmdsn_depth,
830 config_item_name(acl_ci));
833 return (!ret) ? count : (ssize_t)ret;
836 TF_NACL_BASE_ATTR(lio_target, cmdsn_depth, S_IRUGO | S_IWUSR);
838 static ssize_t lio_target_nacl_show_tag(
839 struct se_node_acl *se_nacl,
842 return snprintf(page, PAGE_SIZE, "%s", se_nacl->acl_tag);
845 static ssize_t lio_target_nacl_store_tag(
846 struct se_node_acl *se_nacl,
852 ret = core_tpg_set_initiator_node_tag(se_nacl->se_tpg, se_nacl, page);
859 TF_NACL_BASE_ATTR(lio_target, tag, S_IRUGO | S_IWUSR);
861 static struct configfs_attribute *lio_target_initiator_attrs[] = {
862 &lio_target_nacl_info.attr,
863 &lio_target_nacl_cmdsn_depth.attr,
864 &lio_target_nacl_tag.attr,
868 static struct se_node_acl *lio_tpg_alloc_fabric_acl(
869 struct se_portal_group *se_tpg)
871 struct iscsi_node_acl *acl;
873 acl = kzalloc(sizeof(struct iscsi_node_acl), GFP_KERNEL);
875 pr_err("Unable to allocate memory for struct iscsi_node_acl\n");
879 return &acl->se_node_acl;
882 static struct se_node_acl *lio_target_make_nodeacl(
883 struct se_portal_group *se_tpg,
884 struct config_group *group,
887 struct config_group *stats_cg;
888 struct iscsi_node_acl *acl;
889 struct se_node_acl *se_nacl_new, *se_nacl;
890 struct iscsi_portal_group *tpg = container_of(se_tpg,
891 struct iscsi_portal_group, tpg_se_tpg);
894 se_nacl_new = lio_tpg_alloc_fabric_acl(se_tpg);
896 return ERR_PTR(-ENOMEM);
898 cmdsn_depth = ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth;
900 * se_nacl_new may be released by core_tpg_add_initiator_node_acl()
901 * when converting a NdoeACL from demo mode -> explict
903 se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new,
908 acl = container_of(se_nacl, struct iscsi_node_acl, se_node_acl);
909 stats_cg = &se_nacl->acl_fabric_stat_group;
911 stats_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2,
913 if (!stats_cg->default_groups) {
914 pr_err("Unable to allocate memory for"
915 " stats_cg->default_groups\n");
916 core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1);
918 return ERR_PTR(-ENOMEM);
921 stats_cg->default_groups[0] = &NODE_STAT_GRPS(acl)->iscsi_sess_stats_group;
922 stats_cg->default_groups[1] = NULL;
923 config_group_init_type_name(&NODE_STAT_GRPS(acl)->iscsi_sess_stats_group,
924 "iscsi_sess_stats", &iscsi_stat_sess_cit);
929 static void lio_target_drop_nodeacl(
930 struct se_node_acl *se_nacl)
932 struct se_portal_group *se_tpg = se_nacl->se_tpg;
933 struct iscsi_node_acl *acl = container_of(se_nacl,
934 struct iscsi_node_acl, se_node_acl);
935 struct config_item *df_item;
936 struct config_group *stats_cg;
939 stats_cg = &acl->se_node_acl.acl_fabric_stat_group;
940 for (i = 0; stats_cg->default_groups[i]; i++) {
941 df_item = &stats_cg->default_groups[i]->cg_item;
942 stats_cg->default_groups[i] = NULL;
943 config_item_put(df_item);
945 kfree(stats_cg->default_groups);
947 core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1);
951 /* End items for lio_target_acl_cit */
953 /* Start items for lio_target_tpg_attrib_cit */
955 #define DEF_TPG_ATTRIB(name) \
957 static ssize_t iscsi_tpg_attrib_show_##name( \
958 struct se_portal_group *se_tpg, \
961 struct iscsi_portal_group *tpg = container_of(se_tpg, \
962 struct iscsi_portal_group, tpg_se_tpg); \
965 if (iscsit_get_tpg(tpg) < 0) \
968 rb = sprintf(page, "%u\n", ISCSI_TPG_ATTRIB(tpg)->name); \
969 iscsit_put_tpg(tpg); \
973 static ssize_t iscsi_tpg_attrib_store_##name( \
974 struct se_portal_group *se_tpg, \
978 struct iscsi_portal_group *tpg = container_of(se_tpg, \
979 struct iscsi_portal_group, tpg_se_tpg); \
984 if (iscsit_get_tpg(tpg) < 0) \
987 val = simple_strtoul(page, &endptr, 0); \
988 ret = iscsit_ta_##name(tpg, val); \
992 iscsit_put_tpg(tpg); \
995 iscsit_put_tpg(tpg); \
999 #define TPG_ATTR(_name, _mode) TF_TPG_ATTRIB_ATTR(iscsi, _name, _mode);
1002 * Define iscsi_tpg_attrib_s_authentication
1004 DEF_TPG_ATTRIB(authentication);
1005 TPG_ATTR(authentication, S_IRUGO | S_IWUSR);
1007 * Define iscsi_tpg_attrib_s_login_timeout
1009 DEF_TPG_ATTRIB(login_timeout);
1010 TPG_ATTR(login_timeout, S_IRUGO | S_IWUSR);
1012 * Define iscsi_tpg_attrib_s_netif_timeout
1014 DEF_TPG_ATTRIB(netif_timeout);
1015 TPG_ATTR(netif_timeout, S_IRUGO | S_IWUSR);
1017 * Define iscsi_tpg_attrib_s_generate_node_acls
1019 DEF_TPG_ATTRIB(generate_node_acls);
1020 TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR);
1022 * Define iscsi_tpg_attrib_s_default_cmdsn_depth
1024 DEF_TPG_ATTRIB(default_cmdsn_depth);
1025 TPG_ATTR(default_cmdsn_depth, S_IRUGO | S_IWUSR);
1027 Define iscsi_tpg_attrib_s_cache_dynamic_acls
1029 DEF_TPG_ATTRIB(cache_dynamic_acls);
1030 TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR);
1032 * Define iscsi_tpg_attrib_s_demo_mode_write_protect
1034 DEF_TPG_ATTRIB(demo_mode_write_protect);
1035 TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR);
1037 * Define iscsi_tpg_attrib_s_prod_mode_write_protect
1039 DEF_TPG_ATTRIB(prod_mode_write_protect);
1040 TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR);
1042 static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
1043 &iscsi_tpg_attrib_authentication.attr,
1044 &iscsi_tpg_attrib_login_timeout.attr,
1045 &iscsi_tpg_attrib_netif_timeout.attr,
1046 &iscsi_tpg_attrib_generate_node_acls.attr,
1047 &iscsi_tpg_attrib_default_cmdsn_depth.attr,
1048 &iscsi_tpg_attrib_cache_dynamic_acls.attr,
1049 &iscsi_tpg_attrib_demo_mode_write_protect.attr,
1050 &iscsi_tpg_attrib_prod_mode_write_protect.attr,
1054 /* End items for lio_target_tpg_attrib_cit */
1056 /* Start items for lio_target_tpg_param_cit */
1058 #define DEF_TPG_PARAM(name) \
1059 static ssize_t iscsi_tpg_param_show_##name( \
1060 struct se_portal_group *se_tpg, \
1063 struct iscsi_portal_group *tpg = container_of(se_tpg, \
1064 struct iscsi_portal_group, tpg_se_tpg); \
1065 struct iscsi_param *param; \
1068 if (iscsit_get_tpg(tpg) < 0) \
1071 param = iscsi_find_param_from_key(__stringify(name), \
1074 iscsit_put_tpg(tpg); \
1077 rb = snprintf(page, PAGE_SIZE, "%s\n", param->value); \
1079 iscsit_put_tpg(tpg); \
1082 static ssize_t iscsi_tpg_param_store_##name( \
1083 struct se_portal_group *se_tpg, \
1087 struct iscsi_portal_group *tpg = container_of(se_tpg, \
1088 struct iscsi_portal_group, tpg_se_tpg); \
1092 buf = kzalloc(PAGE_SIZE, GFP_KERNEL); \
1095 snprintf(buf, PAGE_SIZE, "%s=%s", __stringify(name), page); \
1096 buf[strlen(buf)-1] = '\0'; /* Kill newline */ \
1098 if (iscsit_get_tpg(tpg) < 0) { \
1103 ret = iscsi_change_param_value(buf, tpg->param_list, 1); \
1108 iscsit_put_tpg(tpg); \
1112 iscsit_put_tpg(tpg); \
1116 #define TPG_PARAM_ATTR(_name, _mode) TF_TPG_PARAM_ATTR(iscsi, _name, _mode);
1118 DEF_TPG_PARAM(AuthMethod);
1119 TPG_PARAM_ATTR(AuthMethod, S_IRUGO | S_IWUSR);
1121 DEF_TPG_PARAM(HeaderDigest);
1122 TPG_PARAM_ATTR(HeaderDigest, S_IRUGO | S_IWUSR);
1124 DEF_TPG_PARAM(DataDigest);
1125 TPG_PARAM_ATTR(DataDigest, S_IRUGO | S_IWUSR);
1127 DEF_TPG_PARAM(MaxConnections);
1128 TPG_PARAM_ATTR(MaxConnections, S_IRUGO | S_IWUSR);
1130 DEF_TPG_PARAM(TargetAlias);
1131 TPG_PARAM_ATTR(TargetAlias, S_IRUGO | S_IWUSR);
1133 DEF_TPG_PARAM(InitialR2T);
1134 TPG_PARAM_ATTR(InitialR2T, S_IRUGO | S_IWUSR);
1136 DEF_TPG_PARAM(ImmediateData);
1137 TPG_PARAM_ATTR(ImmediateData, S_IRUGO | S_IWUSR);
1139 DEF_TPG_PARAM(MaxRecvDataSegmentLength);
1140 TPG_PARAM_ATTR(MaxRecvDataSegmentLength, S_IRUGO | S_IWUSR);
1142 DEF_TPG_PARAM(MaxXmitDataSegmentLength);
1143 TPG_PARAM_ATTR(MaxXmitDataSegmentLength, S_IRUGO | S_IWUSR);
1145 DEF_TPG_PARAM(MaxBurstLength);
1146 TPG_PARAM_ATTR(MaxBurstLength, S_IRUGO | S_IWUSR);
1148 DEF_TPG_PARAM(FirstBurstLength);
1149 TPG_PARAM_ATTR(FirstBurstLength, S_IRUGO | S_IWUSR);
1151 DEF_TPG_PARAM(DefaultTime2Wait);
1152 TPG_PARAM_ATTR(DefaultTime2Wait, S_IRUGO | S_IWUSR);
1154 DEF_TPG_PARAM(DefaultTime2Retain);
1155 TPG_PARAM_ATTR(DefaultTime2Retain, S_IRUGO | S_IWUSR);
1157 DEF_TPG_PARAM(MaxOutstandingR2T);
1158 TPG_PARAM_ATTR(MaxOutstandingR2T, S_IRUGO | S_IWUSR);
1160 DEF_TPG_PARAM(DataPDUInOrder);
1161 TPG_PARAM_ATTR(DataPDUInOrder, S_IRUGO | S_IWUSR);
1163 DEF_TPG_PARAM(DataSequenceInOrder);
1164 TPG_PARAM_ATTR(DataSequenceInOrder, S_IRUGO | S_IWUSR);
1166 DEF_TPG_PARAM(ErrorRecoveryLevel);
1167 TPG_PARAM_ATTR(ErrorRecoveryLevel, S_IRUGO | S_IWUSR);
1169 DEF_TPG_PARAM(IFMarker);
1170 TPG_PARAM_ATTR(IFMarker, S_IRUGO | S_IWUSR);
1172 DEF_TPG_PARAM(OFMarker);
1173 TPG_PARAM_ATTR(OFMarker, S_IRUGO | S_IWUSR);
1175 DEF_TPG_PARAM(IFMarkInt);
1176 TPG_PARAM_ATTR(IFMarkInt, S_IRUGO | S_IWUSR);
1178 DEF_TPG_PARAM(OFMarkInt);
1179 TPG_PARAM_ATTR(OFMarkInt, S_IRUGO | S_IWUSR);
1181 static struct configfs_attribute *lio_target_tpg_param_attrs[] = {
1182 &iscsi_tpg_param_AuthMethod.attr,
1183 &iscsi_tpg_param_HeaderDigest.attr,
1184 &iscsi_tpg_param_DataDigest.attr,
1185 &iscsi_tpg_param_MaxConnections.attr,
1186 &iscsi_tpg_param_TargetAlias.attr,
1187 &iscsi_tpg_param_InitialR2T.attr,
1188 &iscsi_tpg_param_ImmediateData.attr,
1189 &iscsi_tpg_param_MaxRecvDataSegmentLength.attr,
1190 &iscsi_tpg_param_MaxXmitDataSegmentLength.attr,
1191 &iscsi_tpg_param_MaxBurstLength.attr,
1192 &iscsi_tpg_param_FirstBurstLength.attr,
1193 &iscsi_tpg_param_DefaultTime2Wait.attr,
1194 &iscsi_tpg_param_DefaultTime2Retain.attr,
1195 &iscsi_tpg_param_MaxOutstandingR2T.attr,
1196 &iscsi_tpg_param_DataPDUInOrder.attr,
1197 &iscsi_tpg_param_DataSequenceInOrder.attr,
1198 &iscsi_tpg_param_ErrorRecoveryLevel.attr,
1199 &iscsi_tpg_param_IFMarker.attr,
1200 &iscsi_tpg_param_OFMarker.attr,
1201 &iscsi_tpg_param_IFMarkInt.attr,
1202 &iscsi_tpg_param_OFMarkInt.attr,
1206 /* End items for lio_target_tpg_param_cit */
1208 /* Start items for lio_target_tpg_cit */
1210 static ssize_t lio_target_tpg_show_enable(
1211 struct se_portal_group *se_tpg,
1214 struct iscsi_portal_group *tpg = container_of(se_tpg,
1215 struct iscsi_portal_group, tpg_se_tpg);
1218 spin_lock(&tpg->tpg_state_lock);
1219 len = sprintf(page, "%d\n",
1220 (tpg->tpg_state == TPG_STATE_ACTIVE) ? 1 : 0);
1221 spin_unlock(&tpg->tpg_state_lock);
1226 static ssize_t lio_target_tpg_store_enable(
1227 struct se_portal_group *se_tpg,
1231 struct iscsi_portal_group *tpg = container_of(se_tpg,
1232 struct iscsi_portal_group, tpg_se_tpg);
1237 op = simple_strtoul(page, &endptr, 0);
1238 if ((op != 1) && (op != 0)) {
1239 pr_err("Illegal value for tpg_enable: %u\n", op);
1243 ret = iscsit_get_tpg(tpg);
1248 ret = iscsit_tpg_enable_portal_group(tpg);
1253 * iscsit_tpg_disable_portal_group() assumes force=1
1255 ret = iscsit_tpg_disable_portal_group(tpg, 1);
1260 iscsit_put_tpg(tpg);
1263 iscsit_put_tpg(tpg);
1267 TF_TPG_BASE_ATTR(lio_target, enable, S_IRUGO | S_IWUSR);
1269 static struct configfs_attribute *lio_target_tpg_attrs[] = {
1270 &lio_target_tpg_enable.attr,
1274 /* End items for lio_target_tpg_cit */
1276 /* Start items for lio_target_tiqn_cit */
1278 static struct se_portal_group *lio_target_tiqn_addtpg(
1280 struct config_group *group,
1283 struct iscsi_portal_group *tpg;
1284 struct iscsi_tiqn *tiqn;
1285 char *tpgt_str, *end_ptr;
1287 unsigned short int tpgt;
1289 tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
1291 * Only tpgt_# directory groups can be created below
1292 * target/iscsi/iqn.superturodiskarry/
1294 tpgt_str = strstr(name, "tpgt_");
1296 pr_err("Unable to locate \"tpgt_#\" directory"
1300 tpgt_str += 5; /* Skip ahead of "tpgt_" */
1301 tpgt = (unsigned short int) simple_strtoul(tpgt_str, &end_ptr, 0);
1303 tpg = iscsit_alloc_portal_group(tiqn, tpgt);
1307 ret = core_tpg_register(
1308 &lio_target_fabric_configfs->tf_ops,
1309 wwn, &tpg->tpg_se_tpg, tpg,
1310 TRANSPORT_TPG_TYPE_NORMAL);
1314 ret = iscsit_tpg_add_portal_group(tiqn, tpg);
1318 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn);
1319 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated TPG: %s\n",
1321 return &tpg->tpg_se_tpg;
1323 core_tpg_deregister(&tpg->tpg_se_tpg);
1328 static void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg)
1330 struct iscsi_portal_group *tpg;
1331 struct iscsi_tiqn *tiqn;
1333 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
1334 tiqn = tpg->tpg_tiqn;
1336 * iscsit_tpg_del_portal_group() assumes force=1
1338 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> Releasing TPG\n");
1339 iscsit_tpg_del_portal_group(tiqn, tpg, 1);
1342 /* End items for lio_target_tiqn_cit */
1344 /* Start LIO-Target TIQN struct contig_item lio_target_cit */
1346 static ssize_t lio_target_wwn_show_attr_lio_version(
1347 struct target_fabric_configfs *tf,
1350 return sprintf(page, "RisingTide Systems Linux-iSCSI Target "ISCSIT_VERSION"\n");
1353 TF_WWN_ATTR_RO(lio_target, lio_version);
1355 static struct configfs_attribute *lio_target_wwn_attrs[] = {
1356 &lio_target_wwn_lio_version.attr,
1360 static struct se_wwn *lio_target_call_coreaddtiqn(
1361 struct target_fabric_configfs *tf,
1362 struct config_group *group,
1365 struct config_group *stats_cg;
1366 struct iscsi_tiqn *tiqn;
1368 tiqn = iscsit_add_tiqn((unsigned char *)name);
1370 return ERR_CAST(tiqn);
1372 * Setup struct iscsi_wwn_stat_grps for se_wwn->fabric_stat_group.
1374 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group;
1376 stats_cg->default_groups = kmalloc(sizeof(struct config_group *) * 6,
1378 if (!stats_cg->default_groups) {
1379 pr_err("Unable to allocate memory for"
1380 " stats_cg->default_groups\n");
1381 iscsit_del_tiqn(tiqn);
1382 return ERR_PTR(-ENOMEM);
1385 stats_cg->default_groups[0] = &WWN_STAT_GRPS(tiqn)->iscsi_instance_group;
1386 stats_cg->default_groups[1] = &WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group;
1387 stats_cg->default_groups[2] = &WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group;
1388 stats_cg->default_groups[3] = &WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group;
1389 stats_cg->default_groups[4] = &WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group;
1390 stats_cg->default_groups[5] = NULL;
1391 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_instance_group,
1392 "iscsi_instance", &iscsi_stat_instance_cit);
1393 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group,
1394 "iscsi_sess_err", &iscsi_stat_sess_err_cit);
1395 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group,
1396 "iscsi_tgt_attr", &iscsi_stat_tgt_attr_cit);
1397 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group,
1398 "iscsi_login_stats", &iscsi_stat_login_cit);
1399 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group,
1400 "iscsi_logout_stats", &iscsi_stat_logout_cit);
1402 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn);
1403 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated Node:"
1405 return &tiqn->tiqn_wwn;
1408 static void lio_target_call_coredeltiqn(
1411 struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
1412 struct config_item *df_item;
1413 struct config_group *stats_cg;
1416 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group;
1417 for (i = 0; stats_cg->default_groups[i]; i++) {
1418 df_item = &stats_cg->default_groups[i]->cg_item;
1419 stats_cg->default_groups[i] = NULL;
1420 config_item_put(df_item);
1422 kfree(stats_cg->default_groups);
1424 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s\n",
1426 iscsit_del_tiqn(tiqn);
1429 /* End LIO-Target TIQN struct contig_lio_target_cit */
1431 /* Start lio_target_discovery_auth_cit */
1433 #define DEF_DISC_AUTH_STR(name, flags) \
1434 __DEF_NACL_AUTH_STR(disc, name, flags) \
1435 static ssize_t iscsi_disc_show_##name( \
1436 struct target_fabric_configfs *tf, \
1439 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \
1442 static ssize_t iscsi_disc_store_##name( \
1443 struct target_fabric_configfs *tf, \
1447 return __iscsi_disc_store_##name(&iscsit_global->discovery_acl, \
1451 #define DEF_DISC_AUTH_INT(name) \
1452 __DEF_NACL_AUTH_INT(disc, name) \
1453 static ssize_t iscsi_disc_show_##name( \
1454 struct target_fabric_configfs *tf, \
1457 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \
1461 #define DISC_AUTH_ATTR(_name, _mode) TF_DISC_ATTR(iscsi, _name, _mode)
1462 #define DISC_AUTH_ATTR_RO(_name) TF_DISC_ATTR_RO(iscsi, _name)
1465 * One-way authentication userid
1467 DEF_DISC_AUTH_STR(userid, NAF_USERID_SET);
1468 DISC_AUTH_ATTR(userid, S_IRUGO | S_IWUSR);
1470 * One-way authentication password
1472 DEF_DISC_AUTH_STR(password, NAF_PASSWORD_SET);
1473 DISC_AUTH_ATTR(password, S_IRUGO | S_IWUSR);
1475 * Enforce mutual authentication
1477 DEF_DISC_AUTH_INT(authenticate_target);
1478 DISC_AUTH_ATTR_RO(authenticate_target);
1480 * Mutual authentication userid
1482 DEF_DISC_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
1483 DISC_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR);
1485 * Mutual authentication password
1487 DEF_DISC_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
1488 DISC_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR);
1491 * enforce_discovery_auth
1493 static ssize_t iscsi_disc_show_enforce_discovery_auth(
1494 struct target_fabric_configfs *tf,
1497 struct iscsi_node_auth *discovery_auth = &iscsit_global->discovery_acl.node_auth;
1499 return sprintf(page, "%d\n", discovery_auth->enforce_discovery_auth);
1502 static ssize_t iscsi_disc_store_enforce_discovery_auth(
1503 struct target_fabric_configfs *tf,
1507 struct iscsi_param *param;
1508 struct iscsi_portal_group *discovery_tpg = iscsit_global->discovery_tpg;
1512 op = simple_strtoul(page, &endptr, 0);
1513 if ((op != 1) && (op != 0)) {
1514 pr_err("Illegal value for enforce_discovery_auth:"
1519 if (!discovery_tpg) {
1520 pr_err("iscsit_global->discovery_tpg is NULL\n");
1524 param = iscsi_find_param_from_key(AUTHMETHOD,
1525 discovery_tpg->param_list);
1531 * Reset the AuthMethod key to CHAP.
1533 if (iscsi_update_param_value(param, CHAP) < 0)
1536 discovery_tpg->tpg_attrib.authentication = 1;
1537 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 1;
1538 pr_debug("LIO-CORE[0] Successfully enabled"
1539 " authentication enforcement for iSCSI"
1540 " Discovery TPG\n");
1543 * Reset the AuthMethod key to CHAP,None
1545 if (iscsi_update_param_value(param, "CHAP,None") < 0)
1548 discovery_tpg->tpg_attrib.authentication = 0;
1549 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 0;
1550 pr_debug("LIO-CORE[0] Successfully disabled"
1551 " authentication enforcement for iSCSI"
1552 " Discovery TPG\n");
1558 DISC_AUTH_ATTR(enforce_discovery_auth, S_IRUGO | S_IWUSR);
1560 static struct configfs_attribute *lio_target_discovery_auth_attrs[] = {
1561 &iscsi_disc_userid.attr,
1562 &iscsi_disc_password.attr,
1563 &iscsi_disc_authenticate_target.attr,
1564 &iscsi_disc_userid_mutual.attr,
1565 &iscsi_disc_password_mutual.attr,
1566 &iscsi_disc_enforce_discovery_auth.attr,
1570 /* End lio_target_discovery_auth_cit */
1572 /* Start functions for target_core_fabric_ops */
1574 static char *iscsi_get_fabric_name(void)
1579 static u32 iscsi_get_task_tag(struct se_cmd *se_cmd)
1581 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1583 /* only used for printks or comparism with ->ref_task_tag */
1584 return (__force u32)cmd->init_task_tag;
1587 static int iscsi_get_cmd_state(struct se_cmd *se_cmd)
1589 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1591 return cmd->i_state;
1594 static u32 lio_sess_get_index(struct se_session *se_sess)
1596 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1598 return sess->session_index;
1601 static u32 lio_sess_get_initiator_sid(
1602 struct se_session *se_sess,
1606 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1608 * iSCSI Initiator Session Identifier from RFC-3720.
1610 return snprintf(buf, size, "%02x%02x%02x%02x%02x%02x",
1611 sess->isid[0], sess->isid[1], sess->isid[2],
1612 sess->isid[3], sess->isid[4], sess->isid[5]);
1615 static int lio_queue_data_in(struct se_cmd *se_cmd)
1617 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1619 cmd->i_state = ISTATE_SEND_DATAIN;
1620 cmd->conn->conn_transport->iscsit_queue_data_in(cmd->conn, cmd);
1625 static int lio_write_pending(struct se_cmd *se_cmd)
1627 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1628 struct iscsi_conn *conn = cmd->conn;
1630 if (!cmd->immediate_data && !cmd->unsolicited_data)
1631 return conn->conn_transport->iscsit_get_dataout(conn, cmd, false);
1636 static int lio_write_pending_status(struct se_cmd *se_cmd)
1638 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1641 spin_lock_bh(&cmd->istate_lock);
1642 ret = !(cmd->cmd_flags & ICF_GOT_LAST_DATAOUT);
1643 spin_unlock_bh(&cmd->istate_lock);
1648 static int lio_queue_status(struct se_cmd *se_cmd)
1650 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1652 cmd->i_state = ISTATE_SEND_STATUS;
1653 cmd->conn->conn_transport->iscsit_queue_status(cmd->conn, cmd);
1658 static int lio_queue_tm_rsp(struct se_cmd *se_cmd)
1660 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1662 cmd->i_state = ISTATE_SEND_TASKMGTRSP;
1663 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
1667 static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg)
1669 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1671 return &tpg->tpg_tiqn->tiqn[0];
1674 static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg)
1676 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1681 static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg)
1683 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1685 return ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth;
1688 static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg)
1690 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1692 return ISCSI_TPG_ATTRIB(tpg)->generate_node_acls;
1695 static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg)
1697 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1699 return ISCSI_TPG_ATTRIB(tpg)->cache_dynamic_acls;
1702 static int lio_tpg_check_demo_mode_write_protect(
1703 struct se_portal_group *se_tpg)
1705 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1707 return ISCSI_TPG_ATTRIB(tpg)->demo_mode_write_protect;
1710 static int lio_tpg_check_prod_mode_write_protect(
1711 struct se_portal_group *se_tpg)
1713 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1715 return ISCSI_TPG_ATTRIB(tpg)->prod_mode_write_protect;
1718 static void lio_tpg_release_fabric_acl(
1719 struct se_portal_group *se_tpg,
1720 struct se_node_acl *se_acl)
1722 struct iscsi_node_acl *acl = container_of(se_acl,
1723 struct iscsi_node_acl, se_node_acl);
1728 * Called with spin_lock_bh(struct se_portal_group->session_lock) held..
1730 * Also, this function calls iscsit_inc_session_usage_count() on the
1731 * struct iscsi_session in question.
1733 static int lio_tpg_shutdown_session(struct se_session *se_sess)
1735 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1737 spin_lock(&sess->conn_lock);
1738 if (atomic_read(&sess->session_fall_back_to_erl0) ||
1739 atomic_read(&sess->session_logout) ||
1740 (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) {
1741 spin_unlock(&sess->conn_lock);
1744 atomic_set(&sess->session_reinstatement, 1);
1745 spin_unlock(&sess->conn_lock);
1747 iscsit_stop_time2retain_timer(sess);
1748 iscsit_stop_session(sess, 1, 1);
1754 * Calls iscsit_dec_session_usage_count() as inverse of
1755 * lio_tpg_shutdown_session()
1757 static void lio_tpg_close_session(struct se_session *se_sess)
1759 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1761 * If the iSCSI Session for the iSCSI Initiator Node exists,
1762 * forcefully shutdown the iSCSI NEXUS.
1764 iscsit_close_session(sess);
1767 static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg)
1769 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1771 return tpg->tpg_tiqn->tiqn_index;
1774 static void lio_set_default_node_attributes(struct se_node_acl *se_acl)
1776 struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl,
1779 ISCSI_NODE_ATTRIB(acl)->nacl = acl;
1780 iscsit_set_default_node_attribues(acl);
1783 static int lio_check_stop_free(struct se_cmd *se_cmd)
1785 return target_put_sess_cmd(se_cmd->se_sess, se_cmd);
1788 static void lio_release_cmd(struct se_cmd *se_cmd)
1790 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1792 pr_debug("Entering lio_release_cmd for se_cmd: %p\n", se_cmd);
1793 cmd->release_cmd(cmd);
1796 /* End functions for target_core_fabric_ops */
1798 int iscsi_target_register_configfs(void)
1800 struct target_fabric_configfs *fabric;
1803 lio_target_fabric_configfs = NULL;
1804 fabric = target_fabric_configfs_init(THIS_MODULE, "iscsi");
1805 if (IS_ERR(fabric)) {
1806 pr_err("target_fabric_configfs_init() for"
1807 " LIO-Target failed!\n");
1808 return PTR_ERR(fabric);
1811 * Setup the fabric API of function pointers used by target_core_mod..
1813 fabric->tf_ops.get_fabric_name = &iscsi_get_fabric_name;
1814 fabric->tf_ops.get_fabric_proto_ident = &iscsi_get_fabric_proto_ident;
1815 fabric->tf_ops.tpg_get_wwn = &lio_tpg_get_endpoint_wwn;
1816 fabric->tf_ops.tpg_get_tag = &lio_tpg_get_tag;
1817 fabric->tf_ops.tpg_get_default_depth = &lio_tpg_get_default_depth;
1818 fabric->tf_ops.tpg_get_pr_transport_id = &iscsi_get_pr_transport_id;
1819 fabric->tf_ops.tpg_get_pr_transport_id_len =
1820 &iscsi_get_pr_transport_id_len;
1821 fabric->tf_ops.tpg_parse_pr_out_transport_id =
1822 &iscsi_parse_pr_out_transport_id;
1823 fabric->tf_ops.tpg_check_demo_mode = &lio_tpg_check_demo_mode;
1824 fabric->tf_ops.tpg_check_demo_mode_cache =
1825 &lio_tpg_check_demo_mode_cache;
1826 fabric->tf_ops.tpg_check_demo_mode_write_protect =
1827 &lio_tpg_check_demo_mode_write_protect;
1828 fabric->tf_ops.tpg_check_prod_mode_write_protect =
1829 &lio_tpg_check_prod_mode_write_protect;
1830 fabric->tf_ops.tpg_alloc_fabric_acl = &lio_tpg_alloc_fabric_acl;
1831 fabric->tf_ops.tpg_release_fabric_acl = &lio_tpg_release_fabric_acl;
1832 fabric->tf_ops.tpg_get_inst_index = &lio_tpg_get_inst_index;
1833 fabric->tf_ops.check_stop_free = &lio_check_stop_free,
1834 fabric->tf_ops.release_cmd = &lio_release_cmd;
1835 fabric->tf_ops.shutdown_session = &lio_tpg_shutdown_session;
1836 fabric->tf_ops.close_session = &lio_tpg_close_session;
1837 fabric->tf_ops.sess_get_index = &lio_sess_get_index;
1838 fabric->tf_ops.sess_get_initiator_sid = &lio_sess_get_initiator_sid;
1839 fabric->tf_ops.write_pending = &lio_write_pending;
1840 fabric->tf_ops.write_pending_status = &lio_write_pending_status;
1841 fabric->tf_ops.set_default_node_attributes =
1842 &lio_set_default_node_attributes;
1843 fabric->tf_ops.get_task_tag = &iscsi_get_task_tag;
1844 fabric->tf_ops.get_cmd_state = &iscsi_get_cmd_state;
1845 fabric->tf_ops.queue_data_in = &lio_queue_data_in;
1846 fabric->tf_ops.queue_status = &lio_queue_status;
1847 fabric->tf_ops.queue_tm_rsp = &lio_queue_tm_rsp;
1849 * Setup function pointers for generic logic in target_core_fabric_configfs.c
1851 fabric->tf_ops.fabric_make_wwn = &lio_target_call_coreaddtiqn;
1852 fabric->tf_ops.fabric_drop_wwn = &lio_target_call_coredeltiqn;
1853 fabric->tf_ops.fabric_make_tpg = &lio_target_tiqn_addtpg;
1854 fabric->tf_ops.fabric_drop_tpg = &lio_target_tiqn_deltpg;
1855 fabric->tf_ops.fabric_post_link = NULL;
1856 fabric->tf_ops.fabric_pre_unlink = NULL;
1857 fabric->tf_ops.fabric_make_np = &lio_target_call_addnptotpg;
1858 fabric->tf_ops.fabric_drop_np = &lio_target_call_delnpfromtpg;
1859 fabric->tf_ops.fabric_make_nodeacl = &lio_target_make_nodeacl;
1860 fabric->tf_ops.fabric_drop_nodeacl = &lio_target_drop_nodeacl;
1862 * Setup default attribute lists for various fabric->tf_cit_tmpl
1863 * sturct config_item_type's
1865 TF_CIT_TMPL(fabric)->tfc_discovery_cit.ct_attrs = lio_target_discovery_auth_attrs;
1866 TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = lio_target_wwn_attrs;
1867 TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = lio_target_tpg_attrs;
1868 TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = lio_target_tpg_attrib_attrs;
1869 TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = lio_target_tpg_param_attrs;
1870 TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = lio_target_portal_attrs;
1871 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = lio_target_initiator_attrs;
1872 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = lio_target_nacl_attrib_attrs;
1873 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = lio_target_nacl_auth_attrs;
1874 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = lio_target_nacl_param_attrs;
1876 ret = target_fabric_configfs_register(fabric);
1878 pr_err("target_fabric_configfs_register() for"
1879 " LIO-Target failed!\n");
1880 target_fabric_configfs_free(fabric);
1884 lio_target_fabric_configfs = fabric;
1885 pr_debug("LIO_TARGET[0] - Set fabric ->"
1886 " lio_target_fabric_configfs\n");
1891 void iscsi_target_deregister_configfs(void)
1893 if (!lio_target_fabric_configfs)
1896 * Shutdown discovery sessions and disable discovery TPG
1898 if (iscsit_global->discovery_tpg)
1899 iscsit_tpg_disable_portal_group(iscsit_global->discovery_tpg, 1);
1901 target_fabric_configfs_deregister(lio_target_fabric_configfs);
1902 lio_target_fabric_configfs = NULL;
1903 pr_debug("LIO_TARGET[0] - Cleared"
1904 " lio_target_fabric_configfs\n");