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1/*******************************************************************************
2 * This file contains the configfs implementation for iSCSI Target mode
3 * from the LIO-Target Project.
4 *
5 * \u00a9 Copyright 2007-2011 RisingTide Systems LLC.
6 *
7 * Licensed to the Linux Foundation under the General Public License (GPL) version 2.
8 *
9 * Author: Nicholas A. Bellinger <nab@linux-iscsi.org>
10 *
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.
15 *
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 ****************************************************************************/
21
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
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"
41
42struct target_fabric_configfs *lio_target_fabric_configfs;
43
44struct lio_target_configfs_attribute {
45 struct configfs_attribute attr;
46 ssize_t (*show)(void *, char *);
47 ssize_t (*store)(void *, const char *, size_t);
48};
49
50struct iscsi_portal_group *lio_get_tpg_from_tpg_item(
51 struct config_item *item,
52 struct iscsi_tiqn **tiqn_out)
53{
54 struct se_portal_group *se_tpg = container_of(to_config_group(item),
55 struct se_portal_group, tpg_group);
56 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
57 int ret;
58
59 if (!tpg) {
60 pr_err("Unable to locate struct iscsi_portal_group "
61 "pointer\n");
62 return NULL;
63 }
64 ret = iscsit_get_tpg(tpg);
65 if (ret < 0)
66 return NULL;
67
68 *tiqn_out = tpg->tpg_tiqn;
69 return tpg;
70}
71
72/* Start items for lio_target_portal_cit */
73
74static ssize_t lio_target_np_show_sctp(
75 struct se_tpg_np *se_tpg_np,
76 char *page)
77{
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;
81 ssize_t rb;
82
83 tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP);
84 if (tpg_np_sctp)
85 rb = sprintf(page, "1\n");
86 else
87 rb = sprintf(page, "0\n");
88
89 return rb;
90}
91
92static ssize_t lio_target_np_store_sctp(
93 struct se_tpg_np *se_tpg_np,
94 const char *page,
95 size_t count)
96{
97 struct iscsi_np *np;
98 struct iscsi_portal_group *tpg;
99 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np,
100 struct iscsi_tpg_np, se_tpg_np);
101 struct iscsi_tpg_np *tpg_np_sctp = NULL;
102 char *endptr;
103 u32 op;
104 int ret;
105
106 op = simple_strtoul(page, &endptr, 0);
107 if ((op != 1) && (op != 0)) {
108 pr_err("Illegal value for tpg_enable: %u\n", op);
109 return -EINVAL;
110 }
111 np = tpg_np->tpg_np;
112 if (!np) {
113 pr_err("Unable to locate struct iscsi_np from"
114 " struct iscsi_tpg_np\n");
115 return -EINVAL;
116 }
117
118 tpg = tpg_np->tpg;
119 if (iscsit_get_tpg(tpg) < 0)
120 return -EINVAL;
121
122 if (op) {
123 /*
124 * Use existing np->np_sockaddr for SCTP network portal reference
125 */
126 tpg_np_sctp = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr,
127 np->np_ip, tpg_np, ISCSI_SCTP_TCP);
128 if (!tpg_np_sctp || IS_ERR(tpg_np_sctp))
129 goto out;
130 } else {
131 tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP);
132 if (!tpg_np_sctp)
133 goto out;
134
135 ret = iscsit_tpg_del_network_portal(tpg, tpg_np_sctp);
136 if (ret < 0)
137 goto out;
138 }
139
140 iscsit_put_tpg(tpg);
141 return count;
142out:
143 iscsit_put_tpg(tpg);
144 return -EINVAL;
145}
146
147TF_NP_BASE_ATTR(lio_target, sctp, S_IRUGO | S_IWUSR);
148
149static struct configfs_attribute *lio_target_portal_attrs[] = {
150 &lio_target_np_sctp.attr,
151 NULL,
152};
153
154/* Stop items for lio_target_portal_cit */
155
156/* Start items for lio_target_np_cit */
157
158#define MAX_PORTAL_LEN 256
159
160struct se_tpg_np *lio_target_call_addnptotpg(
161 struct se_portal_group *se_tpg,
162 struct config_group *group,
163 const char *name)
164{
165 struct iscsi_portal_group *tpg;
166 struct iscsi_tpg_np *tpg_np;
167 char *str, *str2, *ip_str, *port_str;
168 struct __kernel_sockaddr_storage sockaddr;
169 struct sockaddr_in *sock_in;
170 struct sockaddr_in6 *sock_in6;
171 unsigned long port;
172 int ret;
173 char buf[MAX_PORTAL_LEN + 1];
174
175 if (strlen(name) > MAX_PORTAL_LEN) {
176 pr_err("strlen(name): %d exceeds MAX_PORTAL_LEN: %d\n",
177 (int)strlen(name), MAX_PORTAL_LEN);
178 return ERR_PTR(-EOVERFLOW);
179 }
180 memset(buf, 0, MAX_PORTAL_LEN + 1);
181 snprintf(buf, MAX_PORTAL_LEN + 1, "%s", name);
182
183 memset(&sockaddr, 0, sizeof(struct __kernel_sockaddr_storage));
184
185 str = strstr(buf, "[");
186 if (str) {
187 const char *end;
188
189 str2 = strstr(str, "]");
190 if (!str2) {
191 pr_err("Unable to locate trailing \"]\""
192 " in IPv6 iSCSI network portal address\n");
193 return ERR_PTR(-EINVAL);
194 }
195 str++; /* Skip over leading "[" */
196 *str2 = '\0'; /* Terminate the IPv6 address */
197 str2++; /* Skip over the "]" */
198 port_str = strstr(str2, ":");
199 if (!port_str) {
200 pr_err("Unable to locate \":port\""
201 " in IPv6 iSCSI network portal address\n");
202 return ERR_PTR(-EINVAL);
203 }
204 *port_str = '\0'; /* Terminate string for IP */
205 port_str++; /* Skip over ":" */
206
207 ret = strict_strtoul(port_str, 0, &port);
208 if (ret < 0) {
209 pr_err("strict_strtoul() failed for port_str: %d\n", ret);
210 return ERR_PTR(ret);
211 }
212 sock_in6 = (struct sockaddr_in6 *)&sockaddr;
213 sock_in6->sin6_family = AF_INET6;
214 sock_in6->sin6_port = htons((unsigned short)port);
215 ret = in6_pton(str, IPV6_ADDRESS_SPACE,
216 (void *)&sock_in6->sin6_addr.in6_u, -1, &end);
217 if (ret <= 0) {
218 pr_err("in6_pton returned: %d\n", ret);
219 return ERR_PTR(-EINVAL);
220 }
221 } else {
222 str = ip_str = &buf[0];
223 port_str = strstr(ip_str, ":");
224 if (!port_str) {
225 pr_err("Unable to locate \":port\""
226 " in IPv4 iSCSI network portal address\n");
227 return ERR_PTR(-EINVAL);
228 }
229 *port_str = '\0'; /* Terminate string for IP */
230 port_str++; /* Skip over ":" */
231
232 ret = strict_strtoul(port_str, 0, &port);
233 if (ret < 0) {
234 pr_err("strict_strtoul() failed for port_str: %d\n", ret);
235 return ERR_PTR(ret);
236 }
237 sock_in = (struct sockaddr_in *)&sockaddr;
238 sock_in->sin_family = AF_INET;
239 sock_in->sin_port = htons((unsigned short)port);
240 sock_in->sin_addr.s_addr = in_aton(ip_str);
241 }
242 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
243 ret = iscsit_get_tpg(tpg);
244 if (ret < 0)
245 return ERR_PTR(-EINVAL);
246
247 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s TPGT: %hu"
248 " PORTAL: %s\n",
249 config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item),
250 tpg->tpgt, name);
251 /*
252 * Assume ISCSI_TCP by default. Other network portals for other
253 * iSCSI fabrics:
254 *
255 * Traditional iSCSI over SCTP (initial support)
256 * iSER/TCP (TODO, hardware available)
257 * iSER/SCTP (TODO, software emulation with osc-iwarp)
258 * iSER/IB (TODO, hardware available)
259 *
260 * can be enabled with atributes under
261 * sys/kernel/config/iscsi/$IQN/$TPG/np/$IP:$PORT/
262 *
263 */
264 tpg_np = iscsit_tpg_add_network_portal(tpg, &sockaddr, str, NULL,
265 ISCSI_TCP);
266 if (IS_ERR(tpg_np)) {
267 iscsit_put_tpg(tpg);
268 return ERR_CAST(tpg_np);
269 }
270 pr_debug("LIO_Target_ConfigFS: addnptotpg done!\n");
271
272 iscsit_put_tpg(tpg);
273 return &tpg_np->se_tpg_np;
274}
275
276static void lio_target_call_delnpfromtpg(
277 struct se_tpg_np *se_tpg_np)
278{
279 struct iscsi_portal_group *tpg;
280 struct iscsi_tpg_np *tpg_np;
281 struct se_portal_group *se_tpg;
282 int ret;
283
284 tpg_np = container_of(se_tpg_np, struct iscsi_tpg_np, se_tpg_np);
285 tpg = tpg_np->tpg;
286 ret = iscsit_get_tpg(tpg);
287 if (ret < 0)
288 return;
289
290 se_tpg = &tpg->tpg_se_tpg;
291 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s TPGT: %hu"
292 " PORTAL: %s:%hu\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item),
293 tpg->tpgt, tpg_np->tpg_np->np_ip, tpg_np->tpg_np->np_port);
294
295 ret = iscsit_tpg_del_network_portal(tpg, tpg_np);
296 if (ret < 0)
297 goto out;
298
299 pr_debug("LIO_Target_ConfigFS: delnpfromtpg done!\n");
300out:
301 iscsit_put_tpg(tpg);
302}
303
304/* End items for lio_target_np_cit */
305
306/* Start items for lio_target_nacl_attrib_cit */
307
308#define DEF_NACL_ATTRIB(name) \
309static ssize_t iscsi_nacl_attrib_show_##name( \
310 struct se_node_acl *se_nacl, \
311 char *page) \
312{ \
313 struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \
314 se_node_acl); \
315 \
316 return sprintf(page, "%u\n", ISCSI_NODE_ATTRIB(nacl)->name); \
317} \
318 \
319static ssize_t iscsi_nacl_attrib_store_##name( \
320 struct se_node_acl *se_nacl, \
321 const char *page, \
322 size_t count) \
323{ \
324 struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \
325 se_node_acl); \
326 char *endptr; \
327 u32 val; \
328 int ret; \
329 \
330 val = simple_strtoul(page, &endptr, 0); \
331 ret = iscsit_na_##name(nacl, val); \
332 if (ret < 0) \
333 return ret; \
334 \
335 return count; \
336}
337
338#define NACL_ATTR(_name, _mode) TF_NACL_ATTRIB_ATTR(iscsi, _name, _mode);
339/*
340 * Define iscsi_node_attrib_s_dataout_timeout
341 */
342DEF_NACL_ATTRIB(dataout_timeout);
343NACL_ATTR(dataout_timeout, S_IRUGO | S_IWUSR);
344/*
345 * Define iscsi_node_attrib_s_dataout_timeout_retries
346 */
347DEF_NACL_ATTRIB(dataout_timeout_retries);
348NACL_ATTR(dataout_timeout_retries, S_IRUGO | S_IWUSR);
349/*
350 * Define iscsi_node_attrib_s_default_erl
351 */
352DEF_NACL_ATTRIB(default_erl);
353NACL_ATTR(default_erl, S_IRUGO | S_IWUSR);
354/*
355 * Define iscsi_node_attrib_s_nopin_timeout
356 */
357DEF_NACL_ATTRIB(nopin_timeout);
358NACL_ATTR(nopin_timeout, S_IRUGO | S_IWUSR);
359/*
360 * Define iscsi_node_attrib_s_nopin_response_timeout
361 */
362DEF_NACL_ATTRIB(nopin_response_timeout);
363NACL_ATTR(nopin_response_timeout, S_IRUGO | S_IWUSR);
364/*
365 * Define iscsi_node_attrib_s_random_datain_pdu_offsets
366 */
367DEF_NACL_ATTRIB(random_datain_pdu_offsets);
368NACL_ATTR(random_datain_pdu_offsets, S_IRUGO | S_IWUSR);
369/*
370 * Define iscsi_node_attrib_s_random_datain_seq_offsets
371 */
372DEF_NACL_ATTRIB(random_datain_seq_offsets);
373NACL_ATTR(random_datain_seq_offsets, S_IRUGO | S_IWUSR);
374/*
375 * Define iscsi_node_attrib_s_random_r2t_offsets
376 */
377DEF_NACL_ATTRIB(random_r2t_offsets);
378NACL_ATTR(random_r2t_offsets, S_IRUGO | S_IWUSR);
379
380static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = {
381 &iscsi_nacl_attrib_dataout_timeout.attr,
382 &iscsi_nacl_attrib_dataout_timeout_retries.attr,
383 &iscsi_nacl_attrib_default_erl.attr,
384 &iscsi_nacl_attrib_nopin_timeout.attr,
385 &iscsi_nacl_attrib_nopin_response_timeout.attr,
386 &iscsi_nacl_attrib_random_datain_pdu_offsets.attr,
387 &iscsi_nacl_attrib_random_datain_seq_offsets.attr,
388 &iscsi_nacl_attrib_random_r2t_offsets.attr,
389 NULL,
390};
391
392/* End items for lio_target_nacl_attrib_cit */
393
394/* Start items for lio_target_nacl_auth_cit */
395
396#define __DEF_NACL_AUTH_STR(prefix, name, flags) \
397static ssize_t __iscsi_##prefix##_show_##name( \
398 struct iscsi_node_acl *nacl, \
399 char *page) \
400{ \
401 struct iscsi_node_auth *auth = &nacl->node_auth; \
402 \
403 if (!capable(CAP_SYS_ADMIN)) \
404 return -EPERM; \
405 return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \
406} \
407 \
408static ssize_t __iscsi_##prefix##_store_##name( \
409 struct iscsi_node_acl *nacl, \
410 const char *page, \
411 size_t count) \
412{ \
413 struct iscsi_node_auth *auth = &nacl->node_auth; \
414 \
415 if (!capable(CAP_SYS_ADMIN)) \
416 return -EPERM; \
417 \
418 snprintf(auth->name, PAGE_SIZE, "%s", page); \
419 if (!strncmp("NULL", auth->name, 4)) \
420 auth->naf_flags &= ~flags; \
421 else \
422 auth->naf_flags |= flags; \
423 \
424 if ((auth->naf_flags & NAF_USERID_IN_SET) && \
425 (auth->naf_flags & NAF_PASSWORD_IN_SET)) \
426 auth->authenticate_target = 1; \
427 else \
428 auth->authenticate_target = 0; \
429 \
430 return count; \
431}
432
433#define __DEF_NACL_AUTH_INT(prefix, name) \
434static ssize_t __iscsi_##prefix##_show_##name( \
435 struct iscsi_node_acl *nacl, \
436 char *page) \
437{ \
438 struct iscsi_node_auth *auth = &nacl->node_auth; \
439 \
440 if (!capable(CAP_SYS_ADMIN)) \
441 return -EPERM; \
442 \
443 return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \
444}
445
446#define DEF_NACL_AUTH_STR(name, flags) \
447 __DEF_NACL_AUTH_STR(nacl_auth, name, flags) \
448static ssize_t iscsi_nacl_auth_show_##name( \
449 struct se_node_acl *nacl, \
450 char *page) \
451{ \
452 return __iscsi_nacl_auth_show_##name(container_of(nacl, \
453 struct iscsi_node_acl, se_node_acl), page); \
454} \
455static ssize_t iscsi_nacl_auth_store_##name( \
456 struct se_node_acl *nacl, \
457 const char *page, \
458 size_t count) \
459{ \
460 return __iscsi_nacl_auth_store_##name(container_of(nacl, \
461 struct iscsi_node_acl, se_node_acl), page, count); \
462}
463
464#define DEF_NACL_AUTH_INT(name) \
465 __DEF_NACL_AUTH_INT(nacl_auth, name) \
466static ssize_t iscsi_nacl_auth_show_##name( \
467 struct se_node_acl *nacl, \
468 char *page) \
469{ \
470 return __iscsi_nacl_auth_show_##name(container_of(nacl, \
471 struct iscsi_node_acl, se_node_acl), page); \
472}
473
474#define AUTH_ATTR(_name, _mode) TF_NACL_AUTH_ATTR(iscsi, _name, _mode);
475#define AUTH_ATTR_RO(_name) TF_NACL_AUTH_ATTR_RO(iscsi, _name);
476
477/*
478 * One-way authentication userid
479 */
480DEF_NACL_AUTH_STR(userid, NAF_USERID_SET);
481AUTH_ATTR(userid, S_IRUGO | S_IWUSR);
482/*
483 * One-way authentication password
484 */
485DEF_NACL_AUTH_STR(password, NAF_PASSWORD_SET);
486AUTH_ATTR(password, S_IRUGO | S_IWUSR);
487/*
488 * Enforce mutual authentication
489 */
490DEF_NACL_AUTH_INT(authenticate_target);
491AUTH_ATTR_RO(authenticate_target);
492/*
493 * Mutual authentication userid
494 */
495DEF_NACL_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
496AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR);
497/*
498 * Mutual authentication password
499 */
500DEF_NACL_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
501AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR);
502
503static struct configfs_attribute *lio_target_nacl_auth_attrs[] = {
504 &iscsi_nacl_auth_userid.attr,
505 &iscsi_nacl_auth_password.attr,
506 &iscsi_nacl_auth_authenticate_target.attr,
507 &iscsi_nacl_auth_userid_mutual.attr,
508 &iscsi_nacl_auth_password_mutual.attr,
509 NULL,
510};
511
512/* End items for lio_target_nacl_auth_cit */
513
514/* Start items for lio_target_nacl_param_cit */
515
516#define DEF_NACL_PARAM(name) \
517static ssize_t iscsi_nacl_param_show_##name( \
518 struct se_node_acl *se_nacl, \
519 char *page) \
520{ \
521 struct iscsi_session *sess; \
522 struct se_session *se_sess; \
523 ssize_t rb; \
524 \
525 spin_lock_bh(&se_nacl->nacl_sess_lock); \
526 se_sess = se_nacl->nacl_sess; \
527 if (!se_sess) { \
528 rb = snprintf(page, PAGE_SIZE, \
529 "No Active iSCSI Session\n"); \
530 } else { \
531 sess = se_sess->fabric_sess_ptr; \
532 rb = snprintf(page, PAGE_SIZE, "%u\n", \
533 (u32)sess->sess_ops->name); \
534 } \
535 spin_unlock_bh(&se_nacl->nacl_sess_lock); \
536 \
537 return rb; \
538}
539
540#define NACL_PARAM_ATTR(_name) TF_NACL_PARAM_ATTR_RO(iscsi, _name);
541
542DEF_NACL_PARAM(MaxConnections);
543NACL_PARAM_ATTR(MaxConnections);
544
545DEF_NACL_PARAM(InitialR2T);
546NACL_PARAM_ATTR(InitialR2T);
547
548DEF_NACL_PARAM(ImmediateData);
549NACL_PARAM_ATTR(ImmediateData);
550
551DEF_NACL_PARAM(MaxBurstLength);
552NACL_PARAM_ATTR(MaxBurstLength);
553
554DEF_NACL_PARAM(FirstBurstLength);
555NACL_PARAM_ATTR(FirstBurstLength);
556
557DEF_NACL_PARAM(DefaultTime2Wait);
558NACL_PARAM_ATTR(DefaultTime2Wait);
559
560DEF_NACL_PARAM(DefaultTime2Retain);
561NACL_PARAM_ATTR(DefaultTime2Retain);
562
563DEF_NACL_PARAM(MaxOutstandingR2T);
564NACL_PARAM_ATTR(MaxOutstandingR2T);
565
566DEF_NACL_PARAM(DataPDUInOrder);
567NACL_PARAM_ATTR(DataPDUInOrder);
568
569DEF_NACL_PARAM(DataSequenceInOrder);
570NACL_PARAM_ATTR(DataSequenceInOrder);
571
572DEF_NACL_PARAM(ErrorRecoveryLevel);
573NACL_PARAM_ATTR(ErrorRecoveryLevel);
574
575static struct configfs_attribute *lio_target_nacl_param_attrs[] = {
576 &iscsi_nacl_param_MaxConnections.attr,
577 &iscsi_nacl_param_InitialR2T.attr,
578 &iscsi_nacl_param_ImmediateData.attr,
579 &iscsi_nacl_param_MaxBurstLength.attr,
580 &iscsi_nacl_param_FirstBurstLength.attr,
581 &iscsi_nacl_param_DefaultTime2Wait.attr,
582 &iscsi_nacl_param_DefaultTime2Retain.attr,
583 &iscsi_nacl_param_MaxOutstandingR2T.attr,
584 &iscsi_nacl_param_DataPDUInOrder.attr,
585 &iscsi_nacl_param_DataSequenceInOrder.attr,
586 &iscsi_nacl_param_ErrorRecoveryLevel.attr,
587 NULL,
588};
589
590/* End items for lio_target_nacl_param_cit */
591
592/* Start items for lio_target_acl_cit */
593
594static ssize_t lio_target_nacl_show_info(
595 struct se_node_acl *se_nacl,
596 char *page)
597{
598 struct iscsi_session *sess;
599 struct iscsi_conn *conn;
600 struct se_session *se_sess;
601 ssize_t rb = 0;
602
603 spin_lock_bh(&se_nacl->nacl_sess_lock);
604 se_sess = se_nacl->nacl_sess;
605 if (!se_sess) {
606 rb += sprintf(page+rb, "No active iSCSI Session for Initiator"
607 " Endpoint: %s\n", se_nacl->initiatorname);
608 } else {
609 sess = se_sess->fabric_sess_ptr;
610
611 if (sess->sess_ops->InitiatorName)
612 rb += sprintf(page+rb, "InitiatorName: %s\n",
613 sess->sess_ops->InitiatorName);
614 if (sess->sess_ops->InitiatorAlias)
615 rb += sprintf(page+rb, "InitiatorAlias: %s\n",
616 sess->sess_ops->InitiatorAlias);
617
618 rb += sprintf(page+rb, "LIO Session ID: %u "
619 "ISID: 0x%02x %02x %02x %02x %02x %02x "
620 "TSIH: %hu ", sess->sid,
621 sess->isid[0], sess->isid[1], sess->isid[2],
622 sess->isid[3], sess->isid[4], sess->isid[5],
623 sess->tsih);
624 rb += sprintf(page+rb, "SessionType: %s\n",
625 (sess->sess_ops->SessionType) ?
626 "Discovery" : "Normal");
627 rb += sprintf(page+rb, "Session State: ");
628 switch (sess->session_state) {
629 case TARG_SESS_STATE_FREE:
630 rb += sprintf(page+rb, "TARG_SESS_FREE\n");
631 break;
632 case TARG_SESS_STATE_ACTIVE:
633 rb += sprintf(page+rb, "TARG_SESS_STATE_ACTIVE\n");
634 break;
635 case TARG_SESS_STATE_LOGGED_IN:
636 rb += sprintf(page+rb, "TARG_SESS_STATE_LOGGED_IN\n");
637 break;
638 case TARG_SESS_STATE_FAILED:
639 rb += sprintf(page+rb, "TARG_SESS_STATE_FAILED\n");
640 break;
641 case TARG_SESS_STATE_IN_CONTINUE:
642 rb += sprintf(page+rb, "TARG_SESS_STATE_IN_CONTINUE\n");
643 break;
644 default:
645 rb += sprintf(page+rb, "ERROR: Unknown Session"
646 " State!\n");
647 break;
648 }
649
650 rb += sprintf(page+rb, "---------------------[iSCSI Session"
651 " Values]-----------------------\n");
652 rb += sprintf(page+rb, " CmdSN/WR : CmdSN/WC : ExpCmdSN"
653 " : MaxCmdSN : ITT : TTT\n");
654 rb += sprintf(page+rb, " 0x%08x 0x%08x 0x%08x 0x%08x"
655 " 0x%08x 0x%08x\n",
656 sess->cmdsn_window,
657 (sess->max_cmd_sn - sess->exp_cmd_sn) + 1,
658 sess->exp_cmd_sn, sess->max_cmd_sn,
659 sess->init_task_tag, sess->targ_xfer_tag);
660 rb += sprintf(page+rb, "----------------------[iSCSI"
661 " Connections]-------------------------\n");
662
663 spin_lock(&sess->conn_lock);
664 list_for_each_entry(conn, &sess->sess_conn_list, conn_list) {
665 rb += sprintf(page+rb, "CID: %hu Connection"
666 " State: ", conn->cid);
667 switch (conn->conn_state) {
668 case TARG_CONN_STATE_FREE:
669 rb += sprintf(page+rb,
670 "TARG_CONN_STATE_FREE\n");
671 break;
672 case TARG_CONN_STATE_XPT_UP:
673 rb += sprintf(page+rb,
674 "TARG_CONN_STATE_XPT_UP\n");
675 break;
676 case TARG_CONN_STATE_IN_LOGIN:
677 rb += sprintf(page+rb,
678 "TARG_CONN_STATE_IN_LOGIN\n");
679 break;
680 case TARG_CONN_STATE_LOGGED_IN:
681 rb += sprintf(page+rb,
682 "TARG_CONN_STATE_LOGGED_IN\n");
683 break;
684 case TARG_CONN_STATE_IN_LOGOUT:
685 rb += sprintf(page+rb,
686 "TARG_CONN_STATE_IN_LOGOUT\n");
687 break;
688 case TARG_CONN_STATE_LOGOUT_REQUESTED:
689 rb += sprintf(page+rb,
690 "TARG_CONN_STATE_LOGOUT_REQUESTED\n");
691 break;
692 case TARG_CONN_STATE_CLEANUP_WAIT:
693 rb += sprintf(page+rb,
694 "TARG_CONN_STATE_CLEANUP_WAIT\n");
695 break;
696 default:
697 rb += sprintf(page+rb,
698 "ERROR: Unknown Connection State!\n");
699 break;
700 }
701
702 rb += sprintf(page+rb, " Address %s %s", conn->login_ip,
703 (conn->network_transport == ISCSI_TCP) ?
704 "TCP" : "SCTP");
705 rb += sprintf(page+rb, " StatSN: 0x%08x\n",
706 conn->stat_sn);
707 }
708 spin_unlock(&sess->conn_lock);
709 }
710 spin_unlock_bh(&se_nacl->nacl_sess_lock);
711
712 return rb;
713}
714
715TF_NACL_BASE_ATTR_RO(lio_target, info);
716
717static ssize_t lio_target_nacl_show_cmdsn_depth(
718 struct se_node_acl *se_nacl,
719 char *page)
720{
721 return sprintf(page, "%u\n", se_nacl->queue_depth);
722}
723
724static ssize_t lio_target_nacl_store_cmdsn_depth(
725 struct se_node_acl *se_nacl,
726 const char *page,
727 size_t count)
728{
729 struct se_portal_group *se_tpg = se_nacl->se_tpg;
730 struct iscsi_portal_group *tpg = container_of(se_tpg,
731 struct iscsi_portal_group, tpg_se_tpg);
732 struct config_item *acl_ci, *tpg_ci, *wwn_ci;
733 char *endptr;
734 u32 cmdsn_depth = 0;
735 int ret;
736
737 cmdsn_depth = simple_strtoul(page, &endptr, 0);
738 if (cmdsn_depth > TA_DEFAULT_CMDSN_DEPTH_MAX) {
739 pr_err("Passed cmdsn_depth: %u exceeds"
740 " TA_DEFAULT_CMDSN_DEPTH_MAX: %u\n", cmdsn_depth,
741 TA_DEFAULT_CMDSN_DEPTH_MAX);
742 return -EINVAL;
743 }
744 acl_ci = &se_nacl->acl_group.cg_item;
745 if (!acl_ci) {
746 pr_err("Unable to locatel acl_ci\n");
747 return -EINVAL;
748 }
749 tpg_ci = &acl_ci->ci_parent->ci_group->cg_item;
750 if (!tpg_ci) {
751 pr_err("Unable to locate tpg_ci\n");
752 return -EINVAL;
753 }
754 wwn_ci = &tpg_ci->ci_group->cg_item;
755 if (!wwn_ci) {
756 pr_err("Unable to locate config_item wwn_ci\n");
757 return -EINVAL;
758 }
759
760 if (iscsit_get_tpg(tpg) < 0)
761 return -EINVAL;
762 /*
763 * iscsit_tpg_set_initiator_node_queue_depth() assumes force=1
764 */
765 ret = iscsit_tpg_set_initiator_node_queue_depth(tpg,
766 config_item_name(acl_ci), cmdsn_depth, 1);
767
768 pr_debug("LIO_Target_ConfigFS: %s/%s Set CmdSN Window: %u for"
769 "InitiatorName: %s\n", config_item_name(wwn_ci),
770 config_item_name(tpg_ci), cmdsn_depth,
771 config_item_name(acl_ci));
772
773 iscsit_put_tpg(tpg);
774 return (!ret) ? count : (ssize_t)ret;
775}
776
777TF_NACL_BASE_ATTR(lio_target, cmdsn_depth, S_IRUGO | S_IWUSR);
778
779static struct configfs_attribute *lio_target_initiator_attrs[] = {
780 &lio_target_nacl_info.attr,
781 &lio_target_nacl_cmdsn_depth.attr,
782 NULL,
783};
784
785static struct se_node_acl *lio_tpg_alloc_fabric_acl(
786 struct se_portal_group *se_tpg)
787{
788 struct iscsi_node_acl *acl;
789
790 acl = kzalloc(sizeof(struct iscsi_node_acl), GFP_KERNEL);
791 if (!acl) {
792 pr_err("Unable to allocate memory for struct iscsi_node_acl\n");
793 return NULL;
794 }
795
796 return &acl->se_node_acl;
797}
798
799static struct se_node_acl *lio_target_make_nodeacl(
800 struct se_portal_group *se_tpg,
801 struct config_group *group,
802 const char *name)
803{
804 struct config_group *stats_cg;
805 struct iscsi_node_acl *acl;
806 struct se_node_acl *se_nacl_new, *se_nacl;
807 struct iscsi_portal_group *tpg = container_of(se_tpg,
808 struct iscsi_portal_group, tpg_se_tpg);
809 u32 cmdsn_depth;
810
811 se_nacl_new = lio_tpg_alloc_fabric_acl(se_tpg);
812 if (!se_nacl_new)
813 return ERR_PTR(-ENOMEM);
814
815 cmdsn_depth = ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth;
816 /*
817 * se_nacl_new may be released by core_tpg_add_initiator_node_acl()
818 * when converting a NdoeACL from demo mode -> explict
819 */
820 se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new,
821 name, cmdsn_depth);
822 if (IS_ERR(se_nacl))
823 return se_nacl;
824
825 acl = container_of(se_nacl, struct iscsi_node_acl, se_node_acl);
826 stats_cg = &se_nacl->acl_fabric_stat_group;
827
828 stats_cg->default_groups = kzalloc(sizeof(struct config_group) * 2,
829 GFP_KERNEL);
830 if (!stats_cg->default_groups) {
831 pr_err("Unable to allocate memory for"
832 " stats_cg->default_groups\n");
833 core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1);
834 kfree(acl);
835 return ERR_PTR(-ENOMEM);
836 }
837
838 stats_cg->default_groups[0] = &NODE_STAT_GRPS(acl)->iscsi_sess_stats_group;
839 stats_cg->default_groups[1] = NULL;
840 config_group_init_type_name(&NODE_STAT_GRPS(acl)->iscsi_sess_stats_group,
841 "iscsi_sess_stats", &iscsi_stat_sess_cit);
842
843 return se_nacl;
844}
845
846static void lio_target_drop_nodeacl(
847 struct se_node_acl *se_nacl)
848{
849 struct se_portal_group *se_tpg = se_nacl->se_tpg;
850 struct iscsi_node_acl *acl = container_of(se_nacl,
851 struct iscsi_node_acl, se_node_acl);
852 struct config_item *df_item;
853 struct config_group *stats_cg;
854 int i;
855
856 stats_cg = &acl->se_node_acl.acl_fabric_stat_group;
857 for (i = 0; stats_cg->default_groups[i]; i++) {
858 df_item = &stats_cg->default_groups[i]->cg_item;
859 stats_cg->default_groups[i] = NULL;
860 config_item_put(df_item);
861 }
862 kfree(stats_cg->default_groups);
863
864 core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1);
865 kfree(acl);
866}
867
868/* End items for lio_target_acl_cit */
869
870/* Start items for lio_target_tpg_attrib_cit */
871
872#define DEF_TPG_ATTRIB(name) \
873 \
874static ssize_t iscsi_tpg_attrib_show_##name( \
875 struct se_portal_group *se_tpg, \
876 char *page) \
877{ \
878 struct iscsi_portal_group *tpg = container_of(se_tpg, \
879 struct iscsi_portal_group, tpg_se_tpg); \
880 ssize_t rb; \
881 \
882 if (iscsit_get_tpg(tpg) < 0) \
883 return -EINVAL; \
884 \
885 rb = sprintf(page, "%u\n", ISCSI_TPG_ATTRIB(tpg)->name); \
886 iscsit_put_tpg(tpg); \
887 return rb; \
888} \
889 \
890static ssize_t iscsi_tpg_attrib_store_##name( \
891 struct se_portal_group *se_tpg, \
892 const char *page, \
893 size_t count) \
894{ \
895 struct iscsi_portal_group *tpg = container_of(se_tpg, \
896 struct iscsi_portal_group, tpg_se_tpg); \
897 char *endptr; \
898 u32 val; \
899 int ret; \
900 \
901 if (iscsit_get_tpg(tpg) < 0) \
902 return -EINVAL; \
903 \
904 val = simple_strtoul(page, &endptr, 0); \
905 ret = iscsit_ta_##name(tpg, val); \
906 if (ret < 0) \
907 goto out; \
908 \
909 iscsit_put_tpg(tpg); \
910 return count; \
911out: \
912 iscsit_put_tpg(tpg); \
913 return ret; \
914}
915
916#define TPG_ATTR(_name, _mode) TF_TPG_ATTRIB_ATTR(iscsi, _name, _mode);
917
918/*
919 * Define iscsi_tpg_attrib_s_authentication
920 */
921DEF_TPG_ATTRIB(authentication);
922TPG_ATTR(authentication, S_IRUGO | S_IWUSR);
923/*
924 * Define iscsi_tpg_attrib_s_login_timeout
925 */
926DEF_TPG_ATTRIB(login_timeout);
927TPG_ATTR(login_timeout, S_IRUGO | S_IWUSR);
928/*
929 * Define iscsi_tpg_attrib_s_netif_timeout
930 */
931DEF_TPG_ATTRIB(netif_timeout);
932TPG_ATTR(netif_timeout, S_IRUGO | S_IWUSR);
933/*
934 * Define iscsi_tpg_attrib_s_generate_node_acls
935 */
936DEF_TPG_ATTRIB(generate_node_acls);
937TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR);
938/*
939 * Define iscsi_tpg_attrib_s_default_cmdsn_depth
940 */
941DEF_TPG_ATTRIB(default_cmdsn_depth);
942TPG_ATTR(default_cmdsn_depth, S_IRUGO | S_IWUSR);
943/*
944 Define iscsi_tpg_attrib_s_cache_dynamic_acls
945 */
946DEF_TPG_ATTRIB(cache_dynamic_acls);
947TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR);
948/*
949 * Define iscsi_tpg_attrib_s_demo_mode_write_protect
950 */
951DEF_TPG_ATTRIB(demo_mode_write_protect);
952TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR);
953/*
954 * Define iscsi_tpg_attrib_s_prod_mode_write_protect
955 */
956DEF_TPG_ATTRIB(prod_mode_write_protect);
957TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR);
958
959static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
960 &iscsi_tpg_attrib_authentication.attr,
961 &iscsi_tpg_attrib_login_timeout.attr,
962 &iscsi_tpg_attrib_netif_timeout.attr,
963 &iscsi_tpg_attrib_generate_node_acls.attr,
964 &iscsi_tpg_attrib_default_cmdsn_depth.attr,
965 &iscsi_tpg_attrib_cache_dynamic_acls.attr,
966 &iscsi_tpg_attrib_demo_mode_write_protect.attr,
967 &iscsi_tpg_attrib_prod_mode_write_protect.attr,
968 NULL,
969};
970
971/* End items for lio_target_tpg_attrib_cit */
972
973/* Start items for lio_target_tpg_param_cit */
974
975#define DEF_TPG_PARAM(name) \
976static ssize_t iscsi_tpg_param_show_##name( \
977 struct se_portal_group *se_tpg, \
978 char *page) \
979{ \
980 struct iscsi_portal_group *tpg = container_of(se_tpg, \
981 struct iscsi_portal_group, tpg_se_tpg); \
982 struct iscsi_param *param; \
983 ssize_t rb; \
984 \
985 if (iscsit_get_tpg(tpg) < 0) \
986 return -EINVAL; \
987 \
988 param = iscsi_find_param_from_key(__stringify(name), \
989 tpg->param_list); \
990 if (!param) { \
991 iscsit_put_tpg(tpg); \
992 return -EINVAL; \
993 } \
994 rb = snprintf(page, PAGE_SIZE, "%s\n", param->value); \
995 \
996 iscsit_put_tpg(tpg); \
997 return rb; \
998} \
999static ssize_t iscsi_tpg_param_store_##name( \
1000 struct se_portal_group *se_tpg, \
1001 const char *page, \
1002 size_t count) \
1003{ \
1004 struct iscsi_portal_group *tpg = container_of(se_tpg, \
1005 struct iscsi_portal_group, tpg_se_tpg); \
1006 char *buf; \
1007 int ret; \
1008 \
1009 buf = kzalloc(PAGE_SIZE, GFP_KERNEL); \
1010 if (!buf) \
1011 return -ENOMEM; \
1012 snprintf(buf, PAGE_SIZE, "%s=%s", __stringify(name), page); \
1013 buf[strlen(buf)-1] = '\0'; /* Kill newline */ \
1014 \
1015 if (iscsit_get_tpg(tpg) < 0) { \
1016 kfree(buf); \
1017 return -EINVAL; \
1018 } \
1019 \
1020 ret = iscsi_change_param_value(buf, tpg->param_list, 1); \
1021 if (ret < 0) \
1022 goto out; \
1023 \
1024 kfree(buf); \
1025 iscsit_put_tpg(tpg); \
1026 return count; \
1027out: \
1028 kfree(buf); \
1029 iscsit_put_tpg(tpg); \
1030 return -EINVAL; \
1031}
1032
1033#define TPG_PARAM_ATTR(_name, _mode) TF_TPG_PARAM_ATTR(iscsi, _name, _mode);
1034
1035DEF_TPG_PARAM(AuthMethod);
1036TPG_PARAM_ATTR(AuthMethod, S_IRUGO | S_IWUSR);
1037
1038DEF_TPG_PARAM(HeaderDigest);
1039TPG_PARAM_ATTR(HeaderDigest, S_IRUGO | S_IWUSR);
1040
1041DEF_TPG_PARAM(DataDigest);
1042TPG_PARAM_ATTR(DataDigest, S_IRUGO | S_IWUSR);
1043
1044DEF_TPG_PARAM(MaxConnections);
1045TPG_PARAM_ATTR(MaxConnections, S_IRUGO | S_IWUSR);
1046
1047DEF_TPG_PARAM(TargetAlias);
1048TPG_PARAM_ATTR(TargetAlias, S_IRUGO | S_IWUSR);
1049
1050DEF_TPG_PARAM(InitialR2T);
1051TPG_PARAM_ATTR(InitialR2T, S_IRUGO | S_IWUSR);
1052
1053DEF_TPG_PARAM(ImmediateData);
1054TPG_PARAM_ATTR(ImmediateData, S_IRUGO | S_IWUSR);
1055
1056DEF_TPG_PARAM(MaxRecvDataSegmentLength);
1057TPG_PARAM_ATTR(MaxRecvDataSegmentLength, S_IRUGO | S_IWUSR);
1058
1059DEF_TPG_PARAM(MaxBurstLength);
1060TPG_PARAM_ATTR(MaxBurstLength, S_IRUGO | S_IWUSR);
1061
1062DEF_TPG_PARAM(FirstBurstLength);
1063TPG_PARAM_ATTR(FirstBurstLength, S_IRUGO | S_IWUSR);
1064
1065DEF_TPG_PARAM(DefaultTime2Wait);
1066TPG_PARAM_ATTR(DefaultTime2Wait, S_IRUGO | S_IWUSR);
1067
1068DEF_TPG_PARAM(DefaultTime2Retain);
1069TPG_PARAM_ATTR(DefaultTime2Retain, S_IRUGO | S_IWUSR);
1070
1071DEF_TPG_PARAM(MaxOutstandingR2T);
1072TPG_PARAM_ATTR(MaxOutstandingR2T, S_IRUGO | S_IWUSR);
1073
1074DEF_TPG_PARAM(DataPDUInOrder);
1075TPG_PARAM_ATTR(DataPDUInOrder, S_IRUGO | S_IWUSR);
1076
1077DEF_TPG_PARAM(DataSequenceInOrder);
1078TPG_PARAM_ATTR(DataSequenceInOrder, S_IRUGO | S_IWUSR);
1079
1080DEF_TPG_PARAM(ErrorRecoveryLevel);
1081TPG_PARAM_ATTR(ErrorRecoveryLevel, S_IRUGO | S_IWUSR);
1082
1083DEF_TPG_PARAM(IFMarker);
1084TPG_PARAM_ATTR(IFMarker, S_IRUGO | S_IWUSR);
1085
1086DEF_TPG_PARAM(OFMarker);
1087TPG_PARAM_ATTR(OFMarker, S_IRUGO | S_IWUSR);
1088
1089DEF_TPG_PARAM(IFMarkInt);
1090TPG_PARAM_ATTR(IFMarkInt, S_IRUGO | S_IWUSR);
1091
1092DEF_TPG_PARAM(OFMarkInt);
1093TPG_PARAM_ATTR(OFMarkInt, S_IRUGO | S_IWUSR);
1094
1095static struct configfs_attribute *lio_target_tpg_param_attrs[] = {
1096 &iscsi_tpg_param_AuthMethod.attr,
1097 &iscsi_tpg_param_HeaderDigest.attr,
1098 &iscsi_tpg_param_DataDigest.attr,
1099 &iscsi_tpg_param_MaxConnections.attr,
1100 &iscsi_tpg_param_TargetAlias.attr,
1101 &iscsi_tpg_param_InitialR2T.attr,
1102 &iscsi_tpg_param_ImmediateData.attr,
1103 &iscsi_tpg_param_MaxRecvDataSegmentLength.attr,
1104 &iscsi_tpg_param_MaxBurstLength.attr,
1105 &iscsi_tpg_param_FirstBurstLength.attr,
1106 &iscsi_tpg_param_DefaultTime2Wait.attr,
1107 &iscsi_tpg_param_DefaultTime2Retain.attr,
1108 &iscsi_tpg_param_MaxOutstandingR2T.attr,
1109 &iscsi_tpg_param_DataPDUInOrder.attr,
1110 &iscsi_tpg_param_DataSequenceInOrder.attr,
1111 &iscsi_tpg_param_ErrorRecoveryLevel.attr,
1112 &iscsi_tpg_param_IFMarker.attr,
1113 &iscsi_tpg_param_OFMarker.attr,
1114 &iscsi_tpg_param_IFMarkInt.attr,
1115 &iscsi_tpg_param_OFMarkInt.attr,
1116 NULL,
1117};
1118
1119/* End items for lio_target_tpg_param_cit */
1120
1121/* Start items for lio_target_tpg_cit */
1122
1123static ssize_t lio_target_tpg_show_enable(
1124 struct se_portal_group *se_tpg,
1125 char *page)
1126{
1127 struct iscsi_portal_group *tpg = container_of(se_tpg,
1128 struct iscsi_portal_group, tpg_se_tpg);
1129 ssize_t len;
1130
1131 spin_lock(&tpg->tpg_state_lock);
1132 len = sprintf(page, "%d\n",
1133 (tpg->tpg_state == TPG_STATE_ACTIVE) ? 1 : 0);
1134 spin_unlock(&tpg->tpg_state_lock);
1135
1136 return len;
1137}
1138
1139static ssize_t lio_target_tpg_store_enable(
1140 struct se_portal_group *se_tpg,
1141 const char *page,
1142 size_t count)
1143{
1144 struct iscsi_portal_group *tpg = container_of(se_tpg,
1145 struct iscsi_portal_group, tpg_se_tpg);
1146 char *endptr;
1147 u32 op;
1148 int ret = 0;
1149
1150 op = simple_strtoul(page, &endptr, 0);
1151 if ((op != 1) && (op != 0)) {
1152 pr_err("Illegal value for tpg_enable: %u\n", op);
1153 return -EINVAL;
1154 }
1155
1156 ret = iscsit_get_tpg(tpg);
1157 if (ret < 0)
1158 return -EINVAL;
1159
1160 if (op) {
1161 ret = iscsit_tpg_enable_portal_group(tpg);
1162 if (ret < 0)
1163 goto out;
1164 } else {
1165 /*
1166 * iscsit_tpg_disable_portal_group() assumes force=1
1167 */
1168 ret = iscsit_tpg_disable_portal_group(tpg, 1);
1169 if (ret < 0)
1170 goto out;
1171 }
1172
1173 iscsit_put_tpg(tpg);
1174 return count;
1175out:
1176 iscsit_put_tpg(tpg);
1177 return -EINVAL;
1178}
1179
1180TF_TPG_BASE_ATTR(lio_target, enable, S_IRUGO | S_IWUSR);
1181
1182static struct configfs_attribute *lio_target_tpg_attrs[] = {
1183 &lio_target_tpg_enable.attr,
1184 NULL,
1185};
1186
1187/* End items for lio_target_tpg_cit */
1188
1189/* Start items for lio_target_tiqn_cit */
1190
1191struct se_portal_group *lio_target_tiqn_addtpg(
1192 struct se_wwn *wwn,
1193 struct config_group *group,
1194 const char *name)
1195{
1196 struct iscsi_portal_group *tpg;
1197 struct iscsi_tiqn *tiqn;
1198 char *tpgt_str, *end_ptr;
1199 int ret = 0;
1200 unsigned short int tpgt;
1201
1202 tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
1203 /*
1204 * Only tpgt_# directory groups can be created below
1205 * target/iscsi/iqn.superturodiskarry/
1206 */
1207 tpgt_str = strstr(name, "tpgt_");
1208 if (!tpgt_str) {
1209 pr_err("Unable to locate \"tpgt_#\" directory"
1210 " group\n");
1211 return NULL;
1212 }
1213 tpgt_str += 5; /* Skip ahead of "tpgt_" */
1214 tpgt = (unsigned short int) simple_strtoul(tpgt_str, &end_ptr, 0);
1215
1216 tpg = iscsit_alloc_portal_group(tiqn, tpgt);
1217 if (!tpg)
1218 return NULL;
1219
1220 ret = core_tpg_register(
1221 &lio_target_fabric_configfs->tf_ops,
1222 wwn, &tpg->tpg_se_tpg, tpg,
1223 TRANSPORT_TPG_TYPE_NORMAL);
1224 if (ret < 0)
1225 return NULL;
1226
1227 ret = iscsit_tpg_add_portal_group(tiqn, tpg);
1228 if (ret != 0)
1229 goto out;
1230
1231 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn);
1232 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated TPG: %s\n",
1233 name);
1234 return &tpg->tpg_se_tpg;
1235out:
1236 core_tpg_deregister(&tpg->tpg_se_tpg);
1237 kfree(tpg);
1238 return NULL;
1239}
1240
1241void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg)
1242{
1243 struct iscsi_portal_group *tpg;
1244 struct iscsi_tiqn *tiqn;
1245
1246 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
1247 tiqn = tpg->tpg_tiqn;
1248 /*
1249 * iscsit_tpg_del_portal_group() assumes force=1
1250 */
1251 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> Releasing TPG\n");
1252 iscsit_tpg_del_portal_group(tiqn, tpg, 1);
1253}
1254
1255/* End items for lio_target_tiqn_cit */
1256
1257/* Start LIO-Target TIQN struct contig_item lio_target_cit */
1258
1259static ssize_t lio_target_wwn_show_attr_lio_version(
1260 struct target_fabric_configfs *tf,
1261 char *page)
1262{
1263 return sprintf(page, "RisingTide Systems Linux-iSCSI Target "ISCSIT_VERSION"\n");
1264}
1265
1266TF_WWN_ATTR_RO(lio_target, lio_version);
1267
1268static struct configfs_attribute *lio_target_wwn_attrs[] = {
1269 &lio_target_wwn_lio_version.attr,
1270 NULL,
1271};
1272
1273struct se_wwn *lio_target_call_coreaddtiqn(
1274 struct target_fabric_configfs *tf,
1275 struct config_group *group,
1276 const char *name)
1277{
1278 struct config_group *stats_cg;
1279 struct iscsi_tiqn *tiqn;
1280
1281 tiqn = iscsit_add_tiqn((unsigned char *)name);
1282 if (IS_ERR(tiqn))
1283 return ERR_CAST(tiqn);
1284 /*
1285 * Setup struct iscsi_wwn_stat_grps for se_wwn->fabric_stat_group.
1286 */
1287 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group;
1288
1289 stats_cg->default_groups = kzalloc(sizeof(struct config_group) * 6,
1290 GFP_KERNEL);
1291 if (!stats_cg->default_groups) {
1292 pr_err("Unable to allocate memory for"
1293 " stats_cg->default_groups\n");
1294 iscsit_del_tiqn(tiqn);
1295 return ERR_PTR(-ENOMEM);
1296 }
1297
1298 stats_cg->default_groups[0] = &WWN_STAT_GRPS(tiqn)->iscsi_instance_group;
1299 stats_cg->default_groups[1] = &WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group;
1300 stats_cg->default_groups[2] = &WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group;
1301 stats_cg->default_groups[3] = &WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group;
1302 stats_cg->default_groups[4] = &WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group;
1303 stats_cg->default_groups[5] = NULL;
1304 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_instance_group,
1305 "iscsi_instance", &iscsi_stat_instance_cit);
1306 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group,
1307 "iscsi_sess_err", &iscsi_stat_sess_err_cit);
1308 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group,
1309 "iscsi_tgt_attr", &iscsi_stat_tgt_attr_cit);
1310 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group,
1311 "iscsi_login_stats", &iscsi_stat_login_cit);
1312 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group,
1313 "iscsi_logout_stats", &iscsi_stat_logout_cit);
1314
1315 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn);
1316 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated Node:"
1317 " %s\n", name);
1318 return &tiqn->tiqn_wwn;
1319}
1320
1321void lio_target_call_coredeltiqn(
1322 struct se_wwn *wwn)
1323{
1324 struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
1325 struct config_item *df_item;
1326 struct config_group *stats_cg;
1327 int i;
1328
1329 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group;
1330 for (i = 0; stats_cg->default_groups[i]; i++) {
1331 df_item = &stats_cg->default_groups[i]->cg_item;
1332 stats_cg->default_groups[i] = NULL;
1333 config_item_put(df_item);
1334 }
1335 kfree(stats_cg->default_groups);
1336
1337 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s\n",
1338 tiqn->tiqn);
1339 iscsit_del_tiqn(tiqn);
1340}
1341
1342/* End LIO-Target TIQN struct contig_lio_target_cit */
1343
1344/* Start lio_target_discovery_auth_cit */
1345
1346#define DEF_DISC_AUTH_STR(name, flags) \
1347 __DEF_NACL_AUTH_STR(disc, name, flags) \
1348static ssize_t iscsi_disc_show_##name( \
1349 struct target_fabric_configfs *tf, \
1350 char *page) \
1351{ \
1352 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \
1353 page); \
1354} \
1355static ssize_t iscsi_disc_store_##name( \
1356 struct target_fabric_configfs *tf, \
1357 const char *page, \
1358 size_t count) \
1359{ \
1360 return __iscsi_disc_store_##name(&iscsit_global->discovery_acl, \
1361 page, count); \
1362}
1363
1364#define DEF_DISC_AUTH_INT(name) \
1365 __DEF_NACL_AUTH_INT(disc, name) \
1366static ssize_t iscsi_disc_show_##name( \
1367 struct target_fabric_configfs *tf, \
1368 char *page) \
1369{ \
1370 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \
1371 page); \
1372}
1373
1374#define DISC_AUTH_ATTR(_name, _mode) TF_DISC_ATTR(iscsi, _name, _mode)
1375#define DISC_AUTH_ATTR_RO(_name) TF_DISC_ATTR_RO(iscsi, _name)
1376
1377/*
1378 * One-way authentication userid
1379 */
1380DEF_DISC_AUTH_STR(userid, NAF_USERID_SET);
1381DISC_AUTH_ATTR(userid, S_IRUGO | S_IWUSR);
1382/*
1383 * One-way authentication password
1384 */
1385DEF_DISC_AUTH_STR(password, NAF_PASSWORD_SET);
1386DISC_AUTH_ATTR(password, S_IRUGO | S_IWUSR);
1387/*
1388 * Enforce mutual authentication
1389 */
1390DEF_DISC_AUTH_INT(authenticate_target);
1391DISC_AUTH_ATTR_RO(authenticate_target);
1392/*
1393 * Mutual authentication userid
1394 */
1395DEF_DISC_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
1396DISC_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR);
1397/*
1398 * Mutual authentication password
1399 */
1400DEF_DISC_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
1401DISC_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR);
1402
1403/*
1404 * enforce_discovery_auth
1405 */
1406static ssize_t iscsi_disc_show_enforce_discovery_auth(
1407 struct target_fabric_configfs *tf,
1408 char *page)
1409{
1410 struct iscsi_node_auth *discovery_auth = &iscsit_global->discovery_acl.node_auth;
1411
1412 return sprintf(page, "%d\n", discovery_auth->enforce_discovery_auth);
1413}
1414
1415static ssize_t iscsi_disc_store_enforce_discovery_auth(
1416 struct target_fabric_configfs *tf,
1417 const char *page,
1418 size_t count)
1419{
1420 struct iscsi_param *param;
1421 struct iscsi_portal_group *discovery_tpg = iscsit_global->discovery_tpg;
1422 char *endptr;
1423 u32 op;
1424
1425 op = simple_strtoul(page, &endptr, 0);
1426 if ((op != 1) && (op != 0)) {
1427 pr_err("Illegal value for enforce_discovery_auth:"
1428 " %u\n", op);
1429 return -EINVAL;
1430 }
1431
1432 if (!discovery_tpg) {
1433 pr_err("iscsit_global->discovery_tpg is NULL\n");
1434 return -EINVAL;
1435 }
1436
1437 param = iscsi_find_param_from_key(AUTHMETHOD,
1438 discovery_tpg->param_list);
1439 if (!param)
1440 return -EINVAL;
1441
1442 if (op) {
1443 /*
1444 * Reset the AuthMethod key to CHAP.
1445 */
1446 if (iscsi_update_param_value(param, CHAP) < 0)
1447 return -EINVAL;
1448
1449 discovery_tpg->tpg_attrib.authentication = 1;
1450 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 1;
1451 pr_debug("LIO-CORE[0] Successfully enabled"
1452 " authentication enforcement for iSCSI"
1453 " Discovery TPG\n");
1454 } else {
1455 /*
1456 * Reset the AuthMethod key to CHAP,None
1457 */
1458 if (iscsi_update_param_value(param, "CHAP,None") < 0)
1459 return -EINVAL;
1460
1461 discovery_tpg->tpg_attrib.authentication = 0;
1462 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 0;
1463 pr_debug("LIO-CORE[0] Successfully disabled"
1464 " authentication enforcement for iSCSI"
1465 " Discovery TPG\n");
1466 }
1467
1468 return count;
1469}
1470
1471DISC_AUTH_ATTR(enforce_discovery_auth, S_IRUGO | S_IWUSR);
1472
1473static struct configfs_attribute *lio_target_discovery_auth_attrs[] = {
1474 &iscsi_disc_userid.attr,
1475 &iscsi_disc_password.attr,
1476 &iscsi_disc_authenticate_target.attr,
1477 &iscsi_disc_userid_mutual.attr,
1478 &iscsi_disc_password_mutual.attr,
1479 &iscsi_disc_enforce_discovery_auth.attr,
1480 NULL,
1481};
1482
1483/* End lio_target_discovery_auth_cit */
1484
1485/* Start functions for target_core_fabric_ops */
1486
1487static char *iscsi_get_fabric_name(void)
1488{
1489 return "iSCSI";
1490}
1491
1492static u32 iscsi_get_task_tag(struct se_cmd *se_cmd)
1493{
1494 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1495
1496 return cmd->init_task_tag;
1497}
1498
1499static int iscsi_get_cmd_state(struct se_cmd *se_cmd)
1500{
1501 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1502
1503 return cmd->i_state;
1504}
1505
1506static u32 lio_sess_get_index(struct se_session *se_sess)
1507{
1508 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1509
1510 return sess->session_index;
1511}
1512
1513static u32 lio_sess_get_initiator_sid(
1514 struct se_session *se_sess,
1515 unsigned char *buf,
1516 u32 size)
1517{
1518 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1519 /*
1520 * iSCSI Initiator Session Identifier from RFC-3720.
1521 */
1522 return snprintf(buf, size, "%02x%02x%02x%02x%02x%02x",
1523 sess->isid[0], sess->isid[1], sess->isid[2],
1524 sess->isid[3], sess->isid[4], sess->isid[5]);
1525}
1526
1527static int lio_queue_data_in(struct se_cmd *se_cmd)
1528{
1529 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1530
1531 cmd->i_state = ISTATE_SEND_DATAIN;
1532 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
1533 return 0;
1534}
1535
1536static int lio_write_pending(struct se_cmd *se_cmd)
1537{
1538 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1539
1540 if (!cmd->immediate_data && !cmd->unsolicited_data)
1541 return iscsit_build_r2ts_for_cmd(cmd, cmd->conn, false);
1542
1543 return 0;
1544}
1545
1546static int lio_write_pending_status(struct se_cmd *se_cmd)
1547{
1548 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1549 int ret;
1550
1551 spin_lock_bh(&cmd->istate_lock);
1552 ret = !(cmd->cmd_flags & ICF_GOT_LAST_DATAOUT);
1553 spin_unlock_bh(&cmd->istate_lock);
1554
1555 return ret;
1556}
1557
1558static int lio_queue_status(struct se_cmd *se_cmd)
1559{
1560 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1561
1562 cmd->i_state = ISTATE_SEND_STATUS;
1563 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
1564 return 0;
1565}
1566
1567static u16 lio_set_fabric_sense_len(struct se_cmd *se_cmd, u32 sense_length)
1568{
1569 unsigned char *buffer = se_cmd->sense_buffer;
1570 /*
1571 * From RFC-3720 10.4.7. Data Segment - Sense and Response Data Segment
1572 * 16-bit SenseLength.
1573 */
1574 buffer[0] = ((sense_length >> 8) & 0xff);
1575 buffer[1] = (sense_length & 0xff);
1576 /*
1577 * Return two byte offset into allocated sense_buffer.
1578 */
1579 return 2;
1580}
1581
1582static u16 lio_get_fabric_sense_len(void)
1583{
1584 /*
1585 * Return two byte offset into allocated sense_buffer.
1586 */
1587 return 2;
1588}
1589
1590static int lio_queue_tm_rsp(struct se_cmd *se_cmd)
1591{
1592 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1593
1594 cmd->i_state = ISTATE_SEND_TASKMGTRSP;
1595 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
1596 return 0;
1597}
1598
1599static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg)
1600{
1601 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1602
1603 return &tpg->tpg_tiqn->tiqn[0];
1604}
1605
1606static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg)
1607{
1608 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1609
1610 return tpg->tpgt;
1611}
1612
1613static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg)
1614{
1615 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1616
1617 return ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth;
1618}
1619
1620static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg)
1621{
1622 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1623
1624 return ISCSI_TPG_ATTRIB(tpg)->generate_node_acls;
1625}
1626
1627static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg)
1628{
1629 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1630
1631 return ISCSI_TPG_ATTRIB(tpg)->cache_dynamic_acls;
1632}
1633
1634static int lio_tpg_check_demo_mode_write_protect(
1635 struct se_portal_group *se_tpg)
1636{
1637 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1638
1639 return ISCSI_TPG_ATTRIB(tpg)->demo_mode_write_protect;
1640}
1641
1642static int lio_tpg_check_prod_mode_write_protect(
1643 struct se_portal_group *se_tpg)
1644{
1645 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1646
1647 return ISCSI_TPG_ATTRIB(tpg)->prod_mode_write_protect;
1648}
1649
1650static void lio_tpg_release_fabric_acl(
1651 struct se_portal_group *se_tpg,
1652 struct se_node_acl *se_acl)
1653{
1654 struct iscsi_node_acl *acl = container_of(se_acl,
1655 struct iscsi_node_acl, se_node_acl);
1656 kfree(acl);
1657}
1658
1659/*
1660 * Called with spin_lock_bh(struct se_portal_group->session_lock) held..
1661 *
1662 * Also, this function calls iscsit_inc_session_usage_count() on the
1663 * struct iscsi_session in question.
1664 */
1665static int lio_tpg_shutdown_session(struct se_session *se_sess)
1666{
1667 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1668
1669 spin_lock(&sess->conn_lock);
1670 if (atomic_read(&sess->session_fall_back_to_erl0) ||
1671 atomic_read(&sess->session_logout) ||
1672 (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) {
1673 spin_unlock(&sess->conn_lock);
1674 return 0;
1675 }
1676 atomic_set(&sess->session_reinstatement, 1);
1677 spin_unlock(&sess->conn_lock);
1678
1679 iscsit_stop_time2retain_timer(sess);
1680 iscsit_stop_session(sess, 1, 1);
1681
1682 return 1;
1683}
1684
1685/*
1686 * Calls iscsit_dec_session_usage_count() as inverse of
1687 * lio_tpg_shutdown_session()
1688 */
1689static void lio_tpg_close_session(struct se_session *se_sess)
1690{
1691 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1692 /*
1693 * If the iSCSI Session for the iSCSI Initiator Node exists,
1694 * forcefully shutdown the iSCSI NEXUS.
1695 */
1696 iscsit_close_session(sess);
1697}
1698
1699static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg)
1700{
1701 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1702
1703 return tpg->tpg_tiqn->tiqn_index;
1704}
1705
1706static void lio_set_default_node_attributes(struct se_node_acl *se_acl)
1707{
1708 struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl,
1709 se_node_acl);
1710
1711 ISCSI_NODE_ATTRIB(acl)->nacl = acl;
1712 iscsit_set_default_node_attribues(acl);
1713}
1714
1715static void lio_release_cmd(struct se_cmd *se_cmd)
1716{
1717 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1718
1719 iscsit_release_cmd(cmd);
1720}
1721
1722/* End functions for target_core_fabric_ops */
1723
1724int iscsi_target_register_configfs(void)
1725{
1726 struct target_fabric_configfs *fabric;
1727 int ret;
1728
1729 lio_target_fabric_configfs = NULL;
1730 fabric = target_fabric_configfs_init(THIS_MODULE, "iscsi");
1731 if (IS_ERR(fabric)) {
1732 pr_err("target_fabric_configfs_init() for"
1733 " LIO-Target failed!\n");
1734 return PTR_ERR(fabric);
1735 }
1736 /*
1737 * Setup the fabric API of function pointers used by target_core_mod..
1738 */
1739 fabric->tf_ops.get_fabric_name = &iscsi_get_fabric_name;
1740 fabric->tf_ops.get_fabric_proto_ident = &iscsi_get_fabric_proto_ident;
1741 fabric->tf_ops.tpg_get_wwn = &lio_tpg_get_endpoint_wwn;
1742 fabric->tf_ops.tpg_get_tag = &lio_tpg_get_tag;
1743 fabric->tf_ops.tpg_get_default_depth = &lio_tpg_get_default_depth;
1744 fabric->tf_ops.tpg_get_pr_transport_id = &iscsi_get_pr_transport_id;
1745 fabric->tf_ops.tpg_get_pr_transport_id_len =
1746 &iscsi_get_pr_transport_id_len;
1747 fabric->tf_ops.tpg_parse_pr_out_transport_id =
1748 &iscsi_parse_pr_out_transport_id;
1749 fabric->tf_ops.tpg_check_demo_mode = &lio_tpg_check_demo_mode;
1750 fabric->tf_ops.tpg_check_demo_mode_cache =
1751 &lio_tpg_check_demo_mode_cache;
1752 fabric->tf_ops.tpg_check_demo_mode_write_protect =
1753 &lio_tpg_check_demo_mode_write_protect;
1754 fabric->tf_ops.tpg_check_prod_mode_write_protect =
1755 &lio_tpg_check_prod_mode_write_protect;
1756 fabric->tf_ops.tpg_alloc_fabric_acl = &lio_tpg_alloc_fabric_acl;
1757 fabric->tf_ops.tpg_release_fabric_acl = &lio_tpg_release_fabric_acl;
1758 fabric->tf_ops.tpg_get_inst_index = &lio_tpg_get_inst_index;
1759 fabric->tf_ops.release_cmd = &lio_release_cmd;
1760 fabric->tf_ops.shutdown_session = &lio_tpg_shutdown_session;
1761 fabric->tf_ops.close_session = &lio_tpg_close_session;
1762 fabric->tf_ops.sess_get_index = &lio_sess_get_index;
1763 fabric->tf_ops.sess_get_initiator_sid = &lio_sess_get_initiator_sid;
1764 fabric->tf_ops.write_pending = &lio_write_pending;
1765 fabric->tf_ops.write_pending_status = &lio_write_pending_status;
1766 fabric->tf_ops.set_default_node_attributes =
1767 &lio_set_default_node_attributes;
1768 fabric->tf_ops.get_task_tag = &iscsi_get_task_tag;
1769 fabric->tf_ops.get_cmd_state = &iscsi_get_cmd_state;
1770 fabric->tf_ops.queue_data_in = &lio_queue_data_in;
1771 fabric->tf_ops.queue_status = &lio_queue_status;
1772 fabric->tf_ops.queue_tm_rsp = &lio_queue_tm_rsp;
1773 fabric->tf_ops.set_fabric_sense_len = &lio_set_fabric_sense_len;
1774 fabric->tf_ops.get_fabric_sense_len = &lio_get_fabric_sense_len;
1775 /*
1776 * Setup function pointers for generic logic in target_core_fabric_configfs.c
1777 */
1778 fabric->tf_ops.fabric_make_wwn = &lio_target_call_coreaddtiqn;
1779 fabric->tf_ops.fabric_drop_wwn = &lio_target_call_coredeltiqn;
1780 fabric->tf_ops.fabric_make_tpg = &lio_target_tiqn_addtpg;
1781 fabric->tf_ops.fabric_drop_tpg = &lio_target_tiqn_deltpg;
1782 fabric->tf_ops.fabric_post_link = NULL;
1783 fabric->tf_ops.fabric_pre_unlink = NULL;
1784 fabric->tf_ops.fabric_make_np = &lio_target_call_addnptotpg;
1785 fabric->tf_ops.fabric_drop_np = &lio_target_call_delnpfromtpg;
1786 fabric->tf_ops.fabric_make_nodeacl = &lio_target_make_nodeacl;
1787 fabric->tf_ops.fabric_drop_nodeacl = &lio_target_drop_nodeacl;
1788 /*
1789 * Setup default attribute lists for various fabric->tf_cit_tmpl
1790 * sturct config_item_type's
1791 */
1792 TF_CIT_TMPL(fabric)->tfc_discovery_cit.ct_attrs = lio_target_discovery_auth_attrs;
1793 TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = lio_target_wwn_attrs;
1794 TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = lio_target_tpg_attrs;
1795 TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = lio_target_tpg_attrib_attrs;
1796 TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = lio_target_tpg_param_attrs;
1797 TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = lio_target_portal_attrs;
1798 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = lio_target_initiator_attrs;
1799 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = lio_target_nacl_attrib_attrs;
1800 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = lio_target_nacl_auth_attrs;
1801 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = lio_target_nacl_param_attrs;
1802
1803 ret = target_fabric_configfs_register(fabric);
1804 if (ret < 0) {
1805 pr_err("target_fabric_configfs_register() for"
1806 " LIO-Target failed!\n");
1807 target_fabric_configfs_free(fabric);
1808 return ret;
1809 }
1810
1811 lio_target_fabric_configfs = fabric;
1812 pr_debug("LIO_TARGET[0] - Set fabric ->"
1813 " lio_target_fabric_configfs\n");
1814 return 0;
1815}
1816
1817
1818void iscsi_target_deregister_configfs(void)
1819{
1820 if (!lio_target_fabric_configfs)
1821 return;
1822 /*
1823 * Shutdown discovery sessions and disable discovery TPG
1824 */
1825 if (iscsit_global->discovery_tpg)
1826 iscsit_tpg_disable_portal_group(iscsit_global->discovery_tpg, 1);
1827
1828 target_fabric_configfs_deregister(lio_target_fabric_configfs);
1829 lio_target_fabric_configfs = NULL;
1830 pr_debug("LIO_TARGET[0] - Cleared"
1831 " lio_target_fabric_configfs\n");
1832}