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docbook: networking: fix file paths for uapi headers
[linux-2.6/btrfs-unstable.git] / drivers / target / iscsi / iscsi_target_configfs.c
blobff6fd4fb624d44fc4791a62af7e837ba18c10fc1
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
42 struct target_fabric_configfs *lio_target_fabric_configfs;
43
44 struct lio_target_configfs_attribute {
45 struct configfs_attribute attr;
46 ssize_t (*show)(void *, char *);
47 ssize_t (*store)(void *, const char *, size_t);
48 };
49
50 /* Start items for lio_target_portal_cit */
51
52 static ssize_t lio_target_np_show_sctp(
53 struct se_tpg_np *se_tpg_np,
54 char *page)
55 {
56 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np,
57 struct iscsi_tpg_np, se_tpg_np);
58 struct iscsi_tpg_np *tpg_np_sctp;
59 ssize_t rb;
60
61 tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP);
62 if (tpg_np_sctp)
63 rb = sprintf(page, "1\n");
64 else
65 rb = sprintf(page, "0\n");
66
67 return rb;
68 }
69
70 static ssize_t lio_target_np_store_sctp(
71 struct se_tpg_np *se_tpg_np,
72 const char *page,
73 size_t count)
74 {
75 struct iscsi_np *np;
76 struct iscsi_portal_group *tpg;
77 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np,
78 struct iscsi_tpg_np, se_tpg_np);
79 struct iscsi_tpg_np *tpg_np_sctp = NULL;
80 char *endptr;
81 u32 op;
82 int ret;
83
84 op = simple_strtoul(page, &endptr, 0);
85 if ((op != 1) && (op != 0)) {
86 pr_err("Illegal value for tpg_enable: %u\n", op);
87 return -EINVAL;
88 }
89 np = tpg_np->tpg_np;
90 if (!np) {
91 pr_err("Unable to locate struct iscsi_np from"
92 " struct iscsi_tpg_np\n");
93 return -EINVAL;
94 }
95
96 tpg = tpg_np->tpg;
97 if (iscsit_get_tpg(tpg) < 0)
98 return -EINVAL;
99
100 if (op) {
101 /*
102 * Use existing np->np_sockaddr for SCTP network portal reference
103 */
104 tpg_np_sctp = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr,
105 np->np_ip, tpg_np, ISCSI_SCTP_TCP);
106 if (!tpg_np_sctp || IS_ERR(tpg_np_sctp))
107 goto out;
108 } else {
109 tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP);
110 if (!tpg_np_sctp)
111 goto out;
112
113 ret = iscsit_tpg_del_network_portal(tpg, tpg_np_sctp);
114 if (ret < 0)
115 goto out;
116 }
117
118 iscsit_put_tpg(tpg);
119 return count;
120 out:
121 iscsit_put_tpg(tpg);
122 return -EINVAL;
123 }
124
125 TF_NP_BASE_ATTR(lio_target, sctp, S_IRUGO | S_IWUSR);
126
127 static struct configfs_attribute *lio_target_portal_attrs[] = {
128 &lio_target_np_sctp.attr,
129 NULL,
130 };
131
132 /* Stop items for lio_target_portal_cit */
133
134 /* Start items for lio_target_np_cit */
135
136 #define MAX_PORTAL_LEN 256
137
138 static struct se_tpg_np *lio_target_call_addnptotpg(
139 struct se_portal_group *se_tpg,
140 struct config_group *group,
141 const char *name)
142 {
143 struct iscsi_portal_group *tpg;
144 struct iscsi_tpg_np *tpg_np;
145 char *str, *str2, *ip_str, *port_str;
146 struct __kernel_sockaddr_storage sockaddr;
147 struct sockaddr_in *sock_in;
148 struct sockaddr_in6 *sock_in6;
149 unsigned long port;
150 int ret;
151 char buf[MAX_PORTAL_LEN + 1];
152
153 if (strlen(name) > MAX_PORTAL_LEN) {
154 pr_err("strlen(name): %d exceeds MAX_PORTAL_LEN: %d\n",
155 (int)strlen(name), MAX_PORTAL_LEN);
156 return ERR_PTR(-EOVERFLOW);
157 }
158 memset(buf, 0, MAX_PORTAL_LEN + 1);
159 snprintf(buf, MAX_PORTAL_LEN + 1, "%s", name);
160
161 memset(&sockaddr, 0, sizeof(struct __kernel_sockaddr_storage));
162
163 str = strstr(buf, "[");
164 if (str) {
165 const char *end;
166
167 str2 = strstr(str, "]");
168 if (!str2) {
169 pr_err("Unable to locate trailing \"]\""
170 " in IPv6 iSCSI network portal address\n");
171 return ERR_PTR(-EINVAL);
172 }
173 str++; /* Skip over leading "[" */
174 *str2 = '\0'; /* Terminate the IPv6 address */
175 str2++; /* Skip over the "]" */
176 port_str = strstr(str2, ":");
177 if (!port_str) {
178 pr_err("Unable to locate \":port\""
179 " in IPv6 iSCSI network portal address\n");
180 return ERR_PTR(-EINVAL);
181 }
182 *port_str = '\0'; /* Terminate string for IP */
183 port_str++; /* Skip over ":" */
184
185 ret = strict_strtoul(port_str, 0, &port);
186 if (ret < 0) {
187 pr_err("strict_strtoul() failed for port_str: %d\n", ret);
188 return ERR_PTR(ret);
189 }
190 sock_in6 = (struct sockaddr_in6 *)&sockaddr;
191 sock_in6->sin6_family = AF_INET6;
192 sock_in6->sin6_port = htons((unsigned short)port);
193 ret = in6_pton(str, IPV6_ADDRESS_SPACE,
194 (void *)&sock_in6->sin6_addr.in6_u, -1, &end);
195 if (ret <= 0) {
196 pr_err("in6_pton returned: %d\n", ret);
197 return ERR_PTR(-EINVAL);
198 }
199 } else {
200 str = ip_str = &buf[0];
201 port_str = strstr(ip_str, ":");
202 if (!port_str) {
203 pr_err("Unable to locate \":port\""
204 " in IPv4 iSCSI network portal address\n");
205 return ERR_PTR(-EINVAL);
206 }
207 *port_str = '\0'; /* Terminate string for IP */
208 port_str++; /* Skip over ":" */
209
210 ret = strict_strtoul(port_str, 0, &port);
211 if (ret < 0) {
212 pr_err("strict_strtoul() failed for port_str: %d\n", ret);
213 return ERR_PTR(ret);
214 }
215 sock_in = (struct sockaddr_in *)&sockaddr;
216 sock_in->sin_family = AF_INET;
217 sock_in->sin_port = htons((unsigned short)port);
218 sock_in->sin_addr.s_addr = in_aton(ip_str);
219 }
220 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
221 ret = iscsit_get_tpg(tpg);
222 if (ret < 0)
223 return ERR_PTR(-EINVAL);
224
225 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s TPGT: %hu"
226 " PORTAL: %s\n",
227 config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item),
228 tpg->tpgt, name);
229 /*
230 * Assume ISCSI_TCP by default. Other network portals for other
231 * iSCSI fabrics:
232 *
233 * Traditional iSCSI over SCTP (initial support)
234 * iSER/TCP (TODO, hardware available)
235 * iSER/SCTP (TODO, software emulation with osc-iwarp)
236 * iSER/IB (TODO, hardware available)
237 *
238 * can be enabled with atributes under
239 * sys/kernel/config/iscsi/$IQN/$TPG/np/$IP:$PORT/
240 *
241 */
242 tpg_np = iscsit_tpg_add_network_portal(tpg, &sockaddr, str, NULL,
243 ISCSI_TCP);
244 if (IS_ERR(tpg_np)) {
245 iscsit_put_tpg(tpg);
246 return ERR_CAST(tpg_np);
247 }
248 pr_debug("LIO_Target_ConfigFS: addnptotpg done!\n");
249
250 iscsit_put_tpg(tpg);
251 return &tpg_np->se_tpg_np;
252 }
253
254 static void lio_target_call_delnpfromtpg(
255 struct se_tpg_np *se_tpg_np)
256 {
257 struct iscsi_portal_group *tpg;
258 struct iscsi_tpg_np *tpg_np;
259 struct se_portal_group *se_tpg;
260 int ret;
261
262 tpg_np = container_of(se_tpg_np, struct iscsi_tpg_np, se_tpg_np);
263 tpg = tpg_np->tpg;
264 ret = iscsit_get_tpg(tpg);
265 if (ret < 0)
266 return;
267
268 se_tpg = &tpg->tpg_se_tpg;
269 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s TPGT: %hu"
270 " PORTAL: %s:%hu\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item),
271 tpg->tpgt, tpg_np->tpg_np->np_ip, tpg_np->tpg_np->np_port);
272
273 ret = iscsit_tpg_del_network_portal(tpg, tpg_np);
274 if (ret < 0)
275 goto out;
276
277 pr_debug("LIO_Target_ConfigFS: delnpfromtpg done!\n");
278 out:
279 iscsit_put_tpg(tpg);
280 }
281
282 /* End items for lio_target_np_cit */
283
284 /* Start items for lio_target_nacl_attrib_cit */
285
286 #define DEF_NACL_ATTRIB(name) \
287 static ssize_t iscsi_nacl_attrib_show_##name( \
288 struct se_node_acl *se_nacl, \
289 char *page) \
290 { \
291 struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \
292 se_node_acl); \
293 \
294 return sprintf(page, "%u\n", ISCSI_NODE_ATTRIB(nacl)->name); \
295 } \
296 \
297 static ssize_t iscsi_nacl_attrib_store_##name( \
298 struct se_node_acl *se_nacl, \
299 const char *page, \
300 size_t count) \
301 { \
302 struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \
303 se_node_acl); \
304 char *endptr; \
305 u32 val; \
306 int ret; \
307 \
308 val = simple_strtoul(page, &endptr, 0); \
309 ret = iscsit_na_##name(nacl, val); \
310 if (ret < 0) \
311 return ret; \
312 \
313 return count; \
314 }
315
316 #define NACL_ATTR(_name, _mode) TF_NACL_ATTRIB_ATTR(iscsi, _name, _mode);
317 /*
318 * Define iscsi_node_attrib_s_dataout_timeout
319 */
320 DEF_NACL_ATTRIB(dataout_timeout);
321 NACL_ATTR(dataout_timeout, S_IRUGO | S_IWUSR);
322 /*
323 * Define iscsi_node_attrib_s_dataout_timeout_retries
324 */
325 DEF_NACL_ATTRIB(dataout_timeout_retries);
326 NACL_ATTR(dataout_timeout_retries, S_IRUGO | S_IWUSR);
327 /*
328 * Define iscsi_node_attrib_s_default_erl
329 */
330 DEF_NACL_ATTRIB(default_erl);
331 NACL_ATTR(default_erl, S_IRUGO | S_IWUSR);
332 /*
333 * Define iscsi_node_attrib_s_nopin_timeout
334 */
335 DEF_NACL_ATTRIB(nopin_timeout);
336 NACL_ATTR(nopin_timeout, S_IRUGO | S_IWUSR);
337 /*
338 * Define iscsi_node_attrib_s_nopin_response_timeout
339 */
340 DEF_NACL_ATTRIB(nopin_response_timeout);
341 NACL_ATTR(nopin_response_timeout, S_IRUGO | S_IWUSR);
342 /*
343 * Define iscsi_node_attrib_s_random_datain_pdu_offsets
344 */
345 DEF_NACL_ATTRIB(random_datain_pdu_offsets);
346 NACL_ATTR(random_datain_pdu_offsets, S_IRUGO | S_IWUSR);
347 /*
348 * Define iscsi_node_attrib_s_random_datain_seq_offsets
349 */
350 DEF_NACL_ATTRIB(random_datain_seq_offsets);
351 NACL_ATTR(random_datain_seq_offsets, S_IRUGO | S_IWUSR);
352 /*
353 * Define iscsi_node_attrib_s_random_r2t_offsets
354 */
355 DEF_NACL_ATTRIB(random_r2t_offsets);
356 NACL_ATTR(random_r2t_offsets, S_IRUGO | S_IWUSR);
357
358 static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = {
359 &iscsi_nacl_attrib_dataout_timeout.attr,
360 &iscsi_nacl_attrib_dataout_timeout_retries.attr,
361 &iscsi_nacl_attrib_default_erl.attr,
362 &iscsi_nacl_attrib_nopin_timeout.attr,
363 &iscsi_nacl_attrib_nopin_response_timeout.attr,
364 &iscsi_nacl_attrib_random_datain_pdu_offsets.attr,
365 &iscsi_nacl_attrib_random_datain_seq_offsets.attr,
366 &iscsi_nacl_attrib_random_r2t_offsets.attr,
367 NULL,
368 };
369
370 /* End items for lio_target_nacl_attrib_cit */
371
372 /* Start items for lio_target_nacl_auth_cit */
373
374 #define __DEF_NACL_AUTH_STR(prefix, name, flags) \
375 static ssize_t __iscsi_##prefix##_show_##name( \
376 struct iscsi_node_acl *nacl, \
377 char *page) \
378 { \
379 struct iscsi_node_auth *auth = &nacl->node_auth; \
380 \
381 if (!capable(CAP_SYS_ADMIN)) \
382 return -EPERM; \
383 return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \
384 } \
385 \
386 static ssize_t __iscsi_##prefix##_store_##name( \
387 struct iscsi_node_acl *nacl, \
388 const char *page, \
389 size_t count) \
390 { \
391 struct iscsi_node_auth *auth = &nacl->node_auth; \
392 \
393 if (!capable(CAP_SYS_ADMIN)) \
394 return -EPERM; \
395 \
396 snprintf(auth->name, PAGE_SIZE, "%s", page); \
397 if (!strncmp("NULL", auth->name, 4)) \
398 auth->naf_flags &= ~flags; \
399 else \
400 auth->naf_flags |= flags; \
401 \
402 if ((auth->naf_flags & NAF_USERID_IN_SET) && \
403 (auth->naf_flags & NAF_PASSWORD_IN_SET)) \
404 auth->authenticate_target = 1; \
405 else \
406 auth->authenticate_target = 0; \
407 \
408 return count; \
409 }
410
411 #define __DEF_NACL_AUTH_INT(prefix, name) \
412 static ssize_t __iscsi_##prefix##_show_##name( \
413 struct iscsi_node_acl *nacl, \
414 char *page) \
415 { \
416 struct iscsi_node_auth *auth = &nacl->node_auth; \
417 \
418 if (!capable(CAP_SYS_ADMIN)) \
419 return -EPERM; \
420 \
421 return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \
422 }
423
424 #define DEF_NACL_AUTH_STR(name, flags) \
425 __DEF_NACL_AUTH_STR(nacl_auth, name, flags) \
426 static ssize_t iscsi_nacl_auth_show_##name( \
427 struct se_node_acl *nacl, \
428 char *page) \
429 { \
430 return __iscsi_nacl_auth_show_##name(container_of(nacl, \
431 struct iscsi_node_acl, se_node_acl), page); \
432 } \
433 static ssize_t iscsi_nacl_auth_store_##name( \
434 struct se_node_acl *nacl, \
435 const char *page, \
436 size_t count) \
437 { \
438 return __iscsi_nacl_auth_store_##name(container_of(nacl, \
439 struct iscsi_node_acl, se_node_acl), page, count); \
440 }
441
442 #define DEF_NACL_AUTH_INT(name) \
443 __DEF_NACL_AUTH_INT(nacl_auth, name) \
444 static ssize_t iscsi_nacl_auth_show_##name( \
445 struct se_node_acl *nacl, \
446 char *page) \
447 { \
448 return __iscsi_nacl_auth_show_##name(container_of(nacl, \
449 struct iscsi_node_acl, se_node_acl), page); \
450 }
451
452 #define AUTH_ATTR(_name, _mode) TF_NACL_AUTH_ATTR(iscsi, _name, _mode);
453 #define AUTH_ATTR_RO(_name) TF_NACL_AUTH_ATTR_RO(iscsi, _name);
454
455 /*
456 * One-way authentication userid
457 */
458 DEF_NACL_AUTH_STR(userid, NAF_USERID_SET);
459 AUTH_ATTR(userid, S_IRUGO | S_IWUSR);
460 /*
461 * One-way authentication password
462 */
463 DEF_NACL_AUTH_STR(password, NAF_PASSWORD_SET);
464 AUTH_ATTR(password, S_IRUGO | S_IWUSR);
465 /*
466 * Enforce mutual authentication
467 */
468 DEF_NACL_AUTH_INT(authenticate_target);
469 AUTH_ATTR_RO(authenticate_target);
470 /*
471 * Mutual authentication userid
472 */
473 DEF_NACL_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
474 AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR);
475 /*
476 * Mutual authentication password
477 */
478 DEF_NACL_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
479 AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR);
480
481 static struct configfs_attribute *lio_target_nacl_auth_attrs[] = {
482 &iscsi_nacl_auth_userid.attr,
483 &iscsi_nacl_auth_password.attr,
484 &iscsi_nacl_auth_authenticate_target.attr,
485 &iscsi_nacl_auth_userid_mutual.attr,
486 &iscsi_nacl_auth_password_mutual.attr,
487 NULL,
488 };
489
490 /* End items for lio_target_nacl_auth_cit */
491
492 /* Start items for lio_target_nacl_param_cit */
493
494 #define DEF_NACL_PARAM(name) \
495 static ssize_t iscsi_nacl_param_show_##name( \
496 struct se_node_acl *se_nacl, \
497 char *page) \
498 { \
499 struct iscsi_session *sess; \
500 struct se_session *se_sess; \
501 ssize_t rb; \
502 \
503 spin_lock_bh(&se_nacl->nacl_sess_lock); \
504 se_sess = se_nacl->nacl_sess; \
505 if (!se_sess) { \
506 rb = snprintf(page, PAGE_SIZE, \
507 "No Active iSCSI Session\n"); \
508 } else { \
509 sess = se_sess->fabric_sess_ptr; \
510 rb = snprintf(page, PAGE_SIZE, "%u\n", \
511 (u32)sess->sess_ops->name); \
512 } \
513 spin_unlock_bh(&se_nacl->nacl_sess_lock); \
514 \
515 return rb; \
516 }
517
518 #define NACL_PARAM_ATTR(_name) TF_NACL_PARAM_ATTR_RO(iscsi, _name);
519
520 DEF_NACL_PARAM(MaxConnections);
521 NACL_PARAM_ATTR(MaxConnections);
522
523 DEF_NACL_PARAM(InitialR2T);
524 NACL_PARAM_ATTR(InitialR2T);
525
526 DEF_NACL_PARAM(ImmediateData);
527 NACL_PARAM_ATTR(ImmediateData);
528
529 DEF_NACL_PARAM(MaxBurstLength);
530 NACL_PARAM_ATTR(MaxBurstLength);
531
532 DEF_NACL_PARAM(FirstBurstLength);
533 NACL_PARAM_ATTR(FirstBurstLength);
534
535 DEF_NACL_PARAM(DefaultTime2Wait);
536 NACL_PARAM_ATTR(DefaultTime2Wait);
537
538 DEF_NACL_PARAM(DefaultTime2Retain);
539 NACL_PARAM_ATTR(DefaultTime2Retain);
540
541 DEF_NACL_PARAM(MaxOutstandingR2T);
542 NACL_PARAM_ATTR(MaxOutstandingR2T);
543
544 DEF_NACL_PARAM(DataPDUInOrder);
545 NACL_PARAM_ATTR(DataPDUInOrder);
546
547 DEF_NACL_PARAM(DataSequenceInOrder);
548 NACL_PARAM_ATTR(DataSequenceInOrder);
549
550 DEF_NACL_PARAM(ErrorRecoveryLevel);
551 NACL_PARAM_ATTR(ErrorRecoveryLevel);
552
553 static struct configfs_attribute *lio_target_nacl_param_attrs[] = {
554 &iscsi_nacl_param_MaxConnections.attr,
555 &iscsi_nacl_param_InitialR2T.attr,
556 &iscsi_nacl_param_ImmediateData.attr,
557 &iscsi_nacl_param_MaxBurstLength.attr,
558 &iscsi_nacl_param_FirstBurstLength.attr,
559 &iscsi_nacl_param_DefaultTime2Wait.attr,
560 &iscsi_nacl_param_DefaultTime2Retain.attr,
561 &iscsi_nacl_param_MaxOutstandingR2T.attr,
562 &iscsi_nacl_param_DataPDUInOrder.attr,
563 &iscsi_nacl_param_DataSequenceInOrder.attr,
564 &iscsi_nacl_param_ErrorRecoveryLevel.attr,
565 NULL,
566 };
567
568 /* End items for lio_target_nacl_param_cit */
569
570 /* Start items for lio_target_acl_cit */
571
572 static ssize_t lio_target_nacl_show_info(
573 struct se_node_acl *se_nacl,
574 char *page)
575 {
576 struct iscsi_session *sess;
577 struct iscsi_conn *conn;
578 struct se_session *se_sess;
579 ssize_t rb = 0;
580
581 spin_lock_bh(&se_nacl->nacl_sess_lock);
582 se_sess = se_nacl->nacl_sess;
583 if (!se_sess) {
584 rb += sprintf(page+rb, "No active iSCSI Session for Initiator"
585 " Endpoint: %s\n", se_nacl->initiatorname);
586 } else {
587 sess = se_sess->fabric_sess_ptr;
588
589 if (sess->sess_ops->InitiatorName)
590 rb += sprintf(page+rb, "InitiatorName: %s\n",
591 sess->sess_ops->InitiatorName);
592 if (sess->sess_ops->InitiatorAlias)
593 rb += sprintf(page+rb, "InitiatorAlias: %s\n",
594 sess->sess_ops->InitiatorAlias);
595
596 rb += sprintf(page+rb, "LIO Session ID: %u "
597 "ISID: 0x%02x %02x %02x %02x %02x %02x "
598 "TSIH: %hu ", sess->sid,
599 sess->isid[0], sess->isid[1], sess->isid[2],
600 sess->isid[3], sess->isid[4], sess->isid[5],
601 sess->tsih);
602 rb += sprintf(page+rb, "SessionType: %s\n",
603 (sess->sess_ops->SessionType) ?
604 "Discovery" : "Normal");
605 rb += sprintf(page+rb, "Session State: ");
606 switch (sess->session_state) {
607 case TARG_SESS_STATE_FREE:
608 rb += sprintf(page+rb, "TARG_SESS_FREE\n");
609 break;
610 case TARG_SESS_STATE_ACTIVE:
611 rb += sprintf(page+rb, "TARG_SESS_STATE_ACTIVE\n");
612 break;
613 case TARG_SESS_STATE_LOGGED_IN:
614 rb += sprintf(page+rb, "TARG_SESS_STATE_LOGGED_IN\n");
615 break;
616 case TARG_SESS_STATE_FAILED:
617 rb += sprintf(page+rb, "TARG_SESS_STATE_FAILED\n");
618 break;
619 case TARG_SESS_STATE_IN_CONTINUE:
620 rb += sprintf(page+rb, "TARG_SESS_STATE_IN_CONTINUE\n");
621 break;
622 default:
623 rb += sprintf(page+rb, "ERROR: Unknown Session"
624 " State!\n");
625 break;
626 }
627
628 rb += sprintf(page+rb, "---------------------[iSCSI Session"
629 " Values]-----------------------\n");
630 rb += sprintf(page+rb, " CmdSN/WR : CmdSN/WC : ExpCmdSN"
631 " : MaxCmdSN : ITT : TTT\n");
632 rb += sprintf(page+rb, " 0x%08x 0x%08x 0x%08x 0x%08x"
633 " 0x%08x 0x%08x\n",
634 sess->cmdsn_window,
635 (sess->max_cmd_sn - sess->exp_cmd_sn) + 1,
636 sess->exp_cmd_sn, sess->max_cmd_sn,
637 sess->init_task_tag, sess->targ_xfer_tag);
638 rb += sprintf(page+rb, "----------------------[iSCSI"
639 " Connections]-------------------------\n");
640
641 spin_lock(&sess->conn_lock);
642 list_for_each_entry(conn, &sess->sess_conn_list, conn_list) {
643 rb += sprintf(page+rb, "CID: %hu Connection"
644 " State: ", conn->cid);
645 switch (conn->conn_state) {
646 case TARG_CONN_STATE_FREE:
647 rb += sprintf(page+rb,
648 "TARG_CONN_STATE_FREE\n");
649 break;
650 case TARG_CONN_STATE_XPT_UP:
651 rb += sprintf(page+rb,
652 "TARG_CONN_STATE_XPT_UP\n");
653 break;
654 case TARG_CONN_STATE_IN_LOGIN:
655 rb += sprintf(page+rb,
656 "TARG_CONN_STATE_IN_LOGIN\n");
657 break;
658 case TARG_CONN_STATE_LOGGED_IN:
659 rb += sprintf(page+rb,
660 "TARG_CONN_STATE_LOGGED_IN\n");
661 break;
662 case TARG_CONN_STATE_IN_LOGOUT:
663 rb += sprintf(page+rb,
664 "TARG_CONN_STATE_IN_LOGOUT\n");
665 break;
666 case TARG_CONN_STATE_LOGOUT_REQUESTED:
667 rb += sprintf(page+rb,
668 "TARG_CONN_STATE_LOGOUT_REQUESTED\n");
669 break;
670 case TARG_CONN_STATE_CLEANUP_WAIT:
671 rb += sprintf(page+rb,
672 "TARG_CONN_STATE_CLEANUP_WAIT\n");
673 break;
674 default:
675 rb += sprintf(page+rb,
676 "ERROR: Unknown Connection State!\n");
677 break;
678 }
679
680 rb += sprintf(page+rb, " Address %s %s", conn->login_ip,
681 (conn->network_transport == ISCSI_TCP) ?
682 "TCP" : "SCTP");
683 rb += sprintf(page+rb, " StatSN: 0x%08x\n",
684 conn->stat_sn);
685 }
686 spin_unlock(&sess->conn_lock);
687 }
688 spin_unlock_bh(&se_nacl->nacl_sess_lock);
689
690 return rb;
691 }
692
693 TF_NACL_BASE_ATTR_RO(lio_target, info);
694
695 static ssize_t lio_target_nacl_show_cmdsn_depth(
696 struct se_node_acl *se_nacl,
697 char *page)
698 {
699 return sprintf(page, "%u\n", se_nacl->queue_depth);
700 }
701
702 static ssize_t lio_target_nacl_store_cmdsn_depth(
703 struct se_node_acl *se_nacl,
704 const char *page,
705 size_t count)
706 {
707 struct se_portal_group *se_tpg = se_nacl->se_tpg;
708 struct iscsi_portal_group *tpg = container_of(se_tpg,
709 struct iscsi_portal_group, tpg_se_tpg);
710 struct config_item *acl_ci, *tpg_ci, *wwn_ci;
711 char *endptr;
712 u32 cmdsn_depth = 0;
713 int ret;
714
715 cmdsn_depth = simple_strtoul(page, &endptr, 0);
716 if (cmdsn_depth > TA_DEFAULT_CMDSN_DEPTH_MAX) {
717 pr_err("Passed cmdsn_depth: %u exceeds"
718 " TA_DEFAULT_CMDSN_DEPTH_MAX: %u\n", cmdsn_depth,
719 TA_DEFAULT_CMDSN_DEPTH_MAX);
720 return -EINVAL;
721 }
722 acl_ci = &se_nacl->acl_group.cg_item;
723 if (!acl_ci) {
724 pr_err("Unable to locatel acl_ci\n");
725 return -EINVAL;
726 }
727 tpg_ci = &acl_ci->ci_parent->ci_group->cg_item;
728 if (!tpg_ci) {
729 pr_err("Unable to locate tpg_ci\n");
730 return -EINVAL;
731 }
732 wwn_ci = &tpg_ci->ci_group->cg_item;
733 if (!wwn_ci) {
734 pr_err("Unable to locate config_item wwn_ci\n");
735 return -EINVAL;
736 }
737
738 if (iscsit_get_tpg(tpg) < 0)
739 return -EINVAL;
740 /*
741 * iscsit_tpg_set_initiator_node_queue_depth() assumes force=1
742 */
743 ret = iscsit_tpg_set_initiator_node_queue_depth(tpg,
744 config_item_name(acl_ci), cmdsn_depth, 1);
745
746 pr_debug("LIO_Target_ConfigFS: %s/%s Set CmdSN Window: %u for"
747 "InitiatorName: %s\n", config_item_name(wwn_ci),
748 config_item_name(tpg_ci), cmdsn_depth,
749 config_item_name(acl_ci));
750
751 iscsit_put_tpg(tpg);
752 return (!ret) ? count : (ssize_t)ret;
753 }
754
755 TF_NACL_BASE_ATTR(lio_target, cmdsn_depth, S_IRUGO | S_IWUSR);
756
757 static struct configfs_attribute *lio_target_initiator_attrs[] = {
758 &lio_target_nacl_info.attr,
759 &lio_target_nacl_cmdsn_depth.attr,
760 NULL,
761 };
762
763 static struct se_node_acl *lio_tpg_alloc_fabric_acl(
764 struct se_portal_group *se_tpg)
765 {
766 struct iscsi_node_acl *acl;
767
768 acl = kzalloc(sizeof(struct iscsi_node_acl), GFP_KERNEL);
769 if (!acl) {
770 pr_err("Unable to allocate memory for struct iscsi_node_acl\n");
771 return NULL;
772 }
773
774 return &acl->se_node_acl;
775 }
776
777 static struct se_node_acl *lio_target_make_nodeacl(
778 struct se_portal_group *se_tpg,
779 struct config_group *group,
780 const char *name)
781 {
782 struct config_group *stats_cg;
783 struct iscsi_node_acl *acl;
784 struct se_node_acl *se_nacl_new, *se_nacl;
785 struct iscsi_portal_group *tpg = container_of(se_tpg,
786 struct iscsi_portal_group, tpg_se_tpg);
787 u32 cmdsn_depth;
788
789 se_nacl_new = lio_tpg_alloc_fabric_acl(se_tpg);
790 if (!se_nacl_new)
791 return ERR_PTR(-ENOMEM);
792
793 cmdsn_depth = ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth;
794 /*
795 * se_nacl_new may be released by core_tpg_add_initiator_node_acl()
796 * when converting a NdoeACL from demo mode -> explict
797 */
798 se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new,
799 name, cmdsn_depth);
800 if (IS_ERR(se_nacl))
801 return se_nacl;
802
803 acl = container_of(se_nacl, struct iscsi_node_acl, se_node_acl);
804 stats_cg = &se_nacl->acl_fabric_stat_group;
805
806 stats_cg->default_groups = kzalloc(sizeof(struct config_group) * 2,
807 GFP_KERNEL);
808 if (!stats_cg->default_groups) {
809 pr_err("Unable to allocate memory for"
810 " stats_cg->default_groups\n");
811 core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1);
812 kfree(acl);
813 return ERR_PTR(-ENOMEM);
814 }
815
816 stats_cg->default_groups[0] = &NODE_STAT_GRPS(acl)->iscsi_sess_stats_group;
817 stats_cg->default_groups[1] = NULL;
818 config_group_init_type_name(&NODE_STAT_GRPS(acl)->iscsi_sess_stats_group,
819 "iscsi_sess_stats", &iscsi_stat_sess_cit);
820
821 return se_nacl;
822 }
823
824 static void lio_target_drop_nodeacl(
825 struct se_node_acl *se_nacl)
826 {
827 struct se_portal_group *se_tpg = se_nacl->se_tpg;
828 struct iscsi_node_acl *acl = container_of(se_nacl,
829 struct iscsi_node_acl, se_node_acl);
830 struct config_item *df_item;
831 struct config_group *stats_cg;
832 int i;
833
834 stats_cg = &acl->se_node_acl.acl_fabric_stat_group;
835 for (i = 0; stats_cg->default_groups[i]; i++) {
836 df_item = &stats_cg->default_groups[i]->cg_item;
837 stats_cg->default_groups[i] = NULL;
838 config_item_put(df_item);
839 }
840 kfree(stats_cg->default_groups);
841
842 core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1);
843 kfree(acl);
844 }
845
846 /* End items for lio_target_acl_cit */
847
848 /* Start items for lio_target_tpg_attrib_cit */
849
850 #define DEF_TPG_ATTRIB(name) \
851 \
852 static ssize_t iscsi_tpg_attrib_show_##name( \
853 struct se_portal_group *se_tpg, \
854 char *page) \
855 { \
856 struct iscsi_portal_group *tpg = container_of(se_tpg, \
857 struct iscsi_portal_group, tpg_se_tpg); \
858 ssize_t rb; \
859 \
860 if (iscsit_get_tpg(tpg) < 0) \
861 return -EINVAL; \
862 \
863 rb = sprintf(page, "%u\n", ISCSI_TPG_ATTRIB(tpg)->name); \
864 iscsit_put_tpg(tpg); \
865 return rb; \
866 } \
867 \
868 static ssize_t iscsi_tpg_attrib_store_##name( \
869 struct se_portal_group *se_tpg, \
870 const char *page, \
871 size_t count) \
872 { \
873 struct iscsi_portal_group *tpg = container_of(se_tpg, \
874 struct iscsi_portal_group, tpg_se_tpg); \
875 char *endptr; \
876 u32 val; \
877 int ret; \
878 \
879 if (iscsit_get_tpg(tpg) < 0) \
880 return -EINVAL; \
881 \
882 val = simple_strtoul(page, &endptr, 0); \
883 ret = iscsit_ta_##name(tpg, val); \
884 if (ret < 0) \
885 goto out; \
886 \
887 iscsit_put_tpg(tpg); \
888 return count; \
889 out: \
890 iscsit_put_tpg(tpg); \
891 return ret; \
892 }
893
894 #define TPG_ATTR(_name, _mode) TF_TPG_ATTRIB_ATTR(iscsi, _name, _mode);
895
896 /*
897 * Define iscsi_tpg_attrib_s_authentication
898 */
899 DEF_TPG_ATTRIB(authentication);
900 TPG_ATTR(authentication, S_IRUGO | S_IWUSR);
901 /*
902 * Define iscsi_tpg_attrib_s_login_timeout
903 */
904 DEF_TPG_ATTRIB(login_timeout);
905 TPG_ATTR(login_timeout, S_IRUGO | S_IWUSR);
906 /*
907 * Define iscsi_tpg_attrib_s_netif_timeout
908 */
909 DEF_TPG_ATTRIB(netif_timeout);
910 TPG_ATTR(netif_timeout, S_IRUGO | S_IWUSR);
911 /*
912 * Define iscsi_tpg_attrib_s_generate_node_acls
913 */
914 DEF_TPG_ATTRIB(generate_node_acls);
915 TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR);
916 /*
917 * Define iscsi_tpg_attrib_s_default_cmdsn_depth
918 */
919 DEF_TPG_ATTRIB(default_cmdsn_depth);
920 TPG_ATTR(default_cmdsn_depth, S_IRUGO | S_IWUSR);
921 /*
922 Define iscsi_tpg_attrib_s_cache_dynamic_acls
923 */
924 DEF_TPG_ATTRIB(cache_dynamic_acls);
925 TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR);
926 /*
927 * Define iscsi_tpg_attrib_s_demo_mode_write_protect
928 */
929 DEF_TPG_ATTRIB(demo_mode_write_protect);
930 TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR);
931 /*
932 * Define iscsi_tpg_attrib_s_prod_mode_write_protect
933 */
934 DEF_TPG_ATTRIB(prod_mode_write_protect);
935 TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR);
936
937 static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
938 &iscsi_tpg_attrib_authentication.attr,
939 &iscsi_tpg_attrib_login_timeout.attr,
940 &iscsi_tpg_attrib_netif_timeout.attr,
941 &iscsi_tpg_attrib_generate_node_acls.attr,
942 &iscsi_tpg_attrib_default_cmdsn_depth.attr,
943 &iscsi_tpg_attrib_cache_dynamic_acls.attr,
944 &iscsi_tpg_attrib_demo_mode_write_protect.attr,
945 &iscsi_tpg_attrib_prod_mode_write_protect.attr,
946 NULL,
947 };
948
949 /* End items for lio_target_tpg_attrib_cit */
950
951 /* Start items for lio_target_tpg_param_cit */
952
953 #define DEF_TPG_PARAM(name) \
954 static ssize_t iscsi_tpg_param_show_##name( \
955 struct se_portal_group *se_tpg, \
956 char *page) \
957 { \
958 struct iscsi_portal_group *tpg = container_of(se_tpg, \
959 struct iscsi_portal_group, tpg_se_tpg); \
960 struct iscsi_param *param; \
961 ssize_t rb; \
962 \
963 if (iscsit_get_tpg(tpg) < 0) \
964 return -EINVAL; \
965 \
966 param = iscsi_find_param_from_key(__stringify(name), \
967 tpg->param_list); \
968 if (!param) { \
969 iscsit_put_tpg(tpg); \
970 return -EINVAL; \
971 } \
972 rb = snprintf(page, PAGE_SIZE, "%s\n", param->value); \
973 \
974 iscsit_put_tpg(tpg); \
975 return rb; \
976 } \
977 static ssize_t iscsi_tpg_param_store_##name( \
978 struct se_portal_group *se_tpg, \
979 const char *page, \
980 size_t count) \
981 { \
982 struct iscsi_portal_group *tpg = container_of(se_tpg, \
983 struct iscsi_portal_group, tpg_se_tpg); \
984 char *buf; \
985 int ret; \
986 \
987 buf = kzalloc(PAGE_SIZE, GFP_KERNEL); \
988 if (!buf) \
989 return -ENOMEM; \
990 snprintf(buf, PAGE_SIZE, "%s=%s", __stringify(name), page); \
991 buf[strlen(buf)-1] = '\0'; /* Kill newline */ \
992 \
993 if (iscsit_get_tpg(tpg) < 0) { \
994 kfree(buf); \
995 return -EINVAL; \
996 } \
997 \
998 ret = iscsi_change_param_value(buf, tpg->param_list, 1); \
999 if (ret < 0) \
1000 goto out; \
1001 \
1002 kfree(buf); \
1003 iscsit_put_tpg(tpg); \
1004 return count; \
1005 out: \
1006 kfree(buf); \
1007 iscsit_put_tpg(tpg); \
1008 return -EINVAL; \
1009 }
1010
1011 #define TPG_PARAM_ATTR(_name, _mode) TF_TPG_PARAM_ATTR(iscsi, _name, _mode);
1012
1013 DEF_TPG_PARAM(AuthMethod);
1014 TPG_PARAM_ATTR(AuthMethod, S_IRUGO | S_IWUSR);
1015
1016 DEF_TPG_PARAM(HeaderDigest);
1017 TPG_PARAM_ATTR(HeaderDigest, S_IRUGO | S_IWUSR);
1018
1019 DEF_TPG_PARAM(DataDigest);
1020 TPG_PARAM_ATTR(DataDigest, S_IRUGO | S_IWUSR);
1021
1022 DEF_TPG_PARAM(MaxConnections);
1023 TPG_PARAM_ATTR(MaxConnections, S_IRUGO | S_IWUSR);
1024
1025 DEF_TPG_PARAM(TargetAlias);
1026 TPG_PARAM_ATTR(TargetAlias, S_IRUGO | S_IWUSR);
1027
1028 DEF_TPG_PARAM(InitialR2T);
1029 TPG_PARAM_ATTR(InitialR2T, S_IRUGO | S_IWUSR);
1030
1031 DEF_TPG_PARAM(ImmediateData);
1032 TPG_PARAM_ATTR(ImmediateData, S_IRUGO | S_IWUSR);
1033
1034 DEF_TPG_PARAM(MaxRecvDataSegmentLength);
1035 TPG_PARAM_ATTR(MaxRecvDataSegmentLength, S_IRUGO | S_IWUSR);
1036
1037 DEF_TPG_PARAM(MaxXmitDataSegmentLength);
1038 TPG_PARAM_ATTR(MaxXmitDataSegmentLength, S_IRUGO | S_IWUSR);
1039
1040 DEF_TPG_PARAM(MaxBurstLength);
1041 TPG_PARAM_ATTR(MaxBurstLength, S_IRUGO | S_IWUSR);
1042
1043 DEF_TPG_PARAM(FirstBurstLength);
1044 TPG_PARAM_ATTR(FirstBurstLength, S_IRUGO | S_IWUSR);
1045
1046 DEF_TPG_PARAM(DefaultTime2Wait);
1047 TPG_PARAM_ATTR(DefaultTime2Wait, S_IRUGO | S_IWUSR);
1048
1049 DEF_TPG_PARAM(DefaultTime2Retain);
1050 TPG_PARAM_ATTR(DefaultTime2Retain, S_IRUGO | S_IWUSR);
1051
1052 DEF_TPG_PARAM(MaxOutstandingR2T);
1053 TPG_PARAM_ATTR(MaxOutstandingR2T, S_IRUGO | S_IWUSR);
1054
1055 DEF_TPG_PARAM(DataPDUInOrder);
1056 TPG_PARAM_ATTR(DataPDUInOrder, S_IRUGO | S_IWUSR);
1057
1058 DEF_TPG_PARAM(DataSequenceInOrder);
1059 TPG_PARAM_ATTR(DataSequenceInOrder, S_IRUGO | S_IWUSR);
1060
1061 DEF_TPG_PARAM(ErrorRecoveryLevel);
1062 TPG_PARAM_ATTR(ErrorRecoveryLevel, S_IRUGO | S_IWUSR);
1063
1064 DEF_TPG_PARAM(IFMarker);
1065 TPG_PARAM_ATTR(IFMarker, S_IRUGO | S_IWUSR);
1066
1067 DEF_TPG_PARAM(OFMarker);
1068 TPG_PARAM_ATTR(OFMarker, S_IRUGO | S_IWUSR);
1069
1070 DEF_TPG_PARAM(IFMarkInt);
1071 TPG_PARAM_ATTR(IFMarkInt, S_IRUGO | S_IWUSR);
1072
1073 DEF_TPG_PARAM(OFMarkInt);
1074 TPG_PARAM_ATTR(OFMarkInt, S_IRUGO | S_IWUSR);
1075
1076 static struct configfs_attribute *lio_target_tpg_param_attrs[] = {
1077 &iscsi_tpg_param_AuthMethod.attr,
1078 &iscsi_tpg_param_HeaderDigest.attr,
1079 &iscsi_tpg_param_DataDigest.attr,
1080 &iscsi_tpg_param_MaxConnections.attr,
1081 &iscsi_tpg_param_TargetAlias.attr,
1082 &iscsi_tpg_param_InitialR2T.attr,
1083 &iscsi_tpg_param_ImmediateData.attr,
1084 &iscsi_tpg_param_MaxRecvDataSegmentLength.attr,
1085 &iscsi_tpg_param_MaxXmitDataSegmentLength.attr,
1086 &iscsi_tpg_param_MaxBurstLength.attr,
1087 &iscsi_tpg_param_FirstBurstLength.attr,
1088 &iscsi_tpg_param_DefaultTime2Wait.attr,
1089 &iscsi_tpg_param_DefaultTime2Retain.attr,
1090 &iscsi_tpg_param_MaxOutstandingR2T.attr,
1091 &iscsi_tpg_param_DataPDUInOrder.attr,
1092 &iscsi_tpg_param_DataSequenceInOrder.attr,
1093 &iscsi_tpg_param_ErrorRecoveryLevel.attr,
1094 &iscsi_tpg_param_IFMarker.attr,
1095 &iscsi_tpg_param_OFMarker.attr,
1096 &iscsi_tpg_param_IFMarkInt.attr,
1097 &iscsi_tpg_param_OFMarkInt.attr,
1098 NULL,
1099 };
1100
1101 /* End items for lio_target_tpg_param_cit */
1102
1103 /* Start items for lio_target_tpg_cit */
1104
1105 static ssize_t lio_target_tpg_show_enable(
1106 struct se_portal_group *se_tpg,
1107 char *page)
1108 {
1109 struct iscsi_portal_group *tpg = container_of(se_tpg,
1110 struct iscsi_portal_group, tpg_se_tpg);
1111 ssize_t len;
1112
1113 spin_lock(&tpg->tpg_state_lock);
1114 len = sprintf(page, "%d\n",
1115 (tpg->tpg_state == TPG_STATE_ACTIVE) ? 1 : 0);
1116 spin_unlock(&tpg->tpg_state_lock);
1117
1118 return len;
1119 }
1120
1121 static ssize_t lio_target_tpg_store_enable(
1122 struct se_portal_group *se_tpg,
1123 const char *page,
1124 size_t count)
1125 {
1126 struct iscsi_portal_group *tpg = container_of(se_tpg,
1127 struct iscsi_portal_group, tpg_se_tpg);
1128 char *endptr;
1129 u32 op;
1130 int ret = 0;
1131
1132 op = simple_strtoul(page, &endptr, 0);
1133 if ((op != 1) && (op != 0)) {
1134 pr_err("Illegal value for tpg_enable: %u\n", op);
1135 return -EINVAL;
1136 }
1137
1138 ret = iscsit_get_tpg(tpg);
1139 if (ret < 0)
1140 return -EINVAL;
1141
1142 if (op) {
1143 ret = iscsit_tpg_enable_portal_group(tpg);
1144 if (ret < 0)
1145 goto out;
1146 } else {
1147 /*
1148 * iscsit_tpg_disable_portal_group() assumes force=1
1149 */
1150 ret = iscsit_tpg_disable_portal_group(tpg, 1);
1151 if (ret < 0)
1152 goto out;
1153 }
1154
1155 iscsit_put_tpg(tpg);
1156 return count;
1157 out:
1158 iscsit_put_tpg(tpg);
1159 return -EINVAL;
1160 }
1161
1162 TF_TPG_BASE_ATTR(lio_target, enable, S_IRUGO | S_IWUSR);
1163
1164 static struct configfs_attribute *lio_target_tpg_attrs[] = {
1165 &lio_target_tpg_enable.attr,
1166 NULL,
1167 };
1168
1169 /* End items for lio_target_tpg_cit */
1170
1171 /* Start items for lio_target_tiqn_cit */
1172
1173 static struct se_portal_group *lio_target_tiqn_addtpg(
1174 struct se_wwn *wwn,
1175 struct config_group *group,
1176 const char *name)
1177 {
1178 struct iscsi_portal_group *tpg;
1179 struct iscsi_tiqn *tiqn;
1180 char *tpgt_str, *end_ptr;
1181 int ret = 0;
1182 unsigned short int tpgt;
1183
1184 tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
1185 /*
1186 * Only tpgt_# directory groups can be created below
1187 * target/iscsi/iqn.superturodiskarry/
1188 */
1189 tpgt_str = strstr(name, "tpgt_");
1190 if (!tpgt_str) {
1191 pr_err("Unable to locate \"tpgt_#\" directory"
1192 " group\n");
1193 return NULL;
1194 }
1195 tpgt_str += 5; /* Skip ahead of "tpgt_" */
1196 tpgt = (unsigned short int) simple_strtoul(tpgt_str, &end_ptr, 0);
1197
1198 tpg = iscsit_alloc_portal_group(tiqn, tpgt);
1199 if (!tpg)
1200 return NULL;
1201
1202 ret = core_tpg_register(
1203 &lio_target_fabric_configfs->tf_ops,
1204 wwn, &tpg->tpg_se_tpg, tpg,
1205 TRANSPORT_TPG_TYPE_NORMAL);
1206 if (ret < 0)
1207 return NULL;
1208
1209 ret = iscsit_tpg_add_portal_group(tiqn, tpg);
1210 if (ret != 0)
1211 goto out;
1212
1213 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn);
1214 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated TPG: %s\n",
1215 name);
1216 return &tpg->tpg_se_tpg;
1217 out:
1218 core_tpg_deregister(&tpg->tpg_se_tpg);
1219 kfree(tpg);
1220 return NULL;
1221 }
1222
1223 static void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg)
1224 {
1225 struct iscsi_portal_group *tpg;
1226 struct iscsi_tiqn *tiqn;
1227
1228 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
1229 tiqn = tpg->tpg_tiqn;
1230 /*
1231 * iscsit_tpg_del_portal_group() assumes force=1
1232 */
1233 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> Releasing TPG\n");
1234 iscsit_tpg_del_portal_group(tiqn, tpg, 1);
1235 }
1236
1237 /* End items for lio_target_tiqn_cit */
1238
1239 /* Start LIO-Target TIQN struct contig_item lio_target_cit */
1240
1241 static ssize_t lio_target_wwn_show_attr_lio_version(
1242 struct target_fabric_configfs *tf,
1243 char *page)
1244 {
1245 return sprintf(page, "RisingTide Systems Linux-iSCSI Target "ISCSIT_VERSION"\n");
1246 }
1247
1248 TF_WWN_ATTR_RO(lio_target, lio_version);
1249
1250 static struct configfs_attribute *lio_target_wwn_attrs[] = {
1251 &lio_target_wwn_lio_version.attr,
1252 NULL,
1253 };
1254
1255 static struct se_wwn *lio_target_call_coreaddtiqn(
1256 struct target_fabric_configfs *tf,
1257 struct config_group *group,
1258 const char *name)
1259 {
1260 struct config_group *stats_cg;
1261 struct iscsi_tiqn *tiqn;
1262
1263 tiqn = iscsit_add_tiqn((unsigned char *)name);
1264 if (IS_ERR(tiqn))
1265 return ERR_CAST(tiqn);
1266 /*
1267 * Setup struct iscsi_wwn_stat_grps for se_wwn->fabric_stat_group.
1268 */
1269 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group;
1270
1271 stats_cg->default_groups = kzalloc(sizeof(struct config_group) * 6,
1272 GFP_KERNEL);
1273 if (!stats_cg->default_groups) {
1274 pr_err("Unable to allocate memory for"
1275 " stats_cg->default_groups\n");
1276 iscsit_del_tiqn(tiqn);
1277 return ERR_PTR(-ENOMEM);
1278 }
1279
1280 stats_cg->default_groups[0] = &WWN_STAT_GRPS(tiqn)->iscsi_instance_group;
1281 stats_cg->default_groups[1] = &WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group;
1282 stats_cg->default_groups[2] = &WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group;
1283 stats_cg->default_groups[3] = &WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group;
1284 stats_cg->default_groups[4] = &WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group;
1285 stats_cg->default_groups[5] = NULL;
1286 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_instance_group,
1287 "iscsi_instance", &iscsi_stat_instance_cit);
1288 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group,
1289 "iscsi_sess_err", &iscsi_stat_sess_err_cit);
1290 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group,
1291 "iscsi_tgt_attr", &iscsi_stat_tgt_attr_cit);
1292 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group,
1293 "iscsi_login_stats", &iscsi_stat_login_cit);
1294 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group,
1295 "iscsi_logout_stats", &iscsi_stat_logout_cit);
1296
1297 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn);
1298 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated Node:"
1299 " %s\n", name);
1300 return &tiqn->tiqn_wwn;
1301 }
1302
1303 static void lio_target_call_coredeltiqn(
1304 struct se_wwn *wwn)
1305 {
1306 struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
1307 struct config_item *df_item;
1308 struct config_group *stats_cg;
1309 int i;
1310
1311 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group;
1312 for (i = 0; stats_cg->default_groups[i]; i++) {
1313 df_item = &stats_cg->default_groups[i]->cg_item;
1314 stats_cg->default_groups[i] = NULL;
1315 config_item_put(df_item);
1316 }
1317 kfree(stats_cg->default_groups);
1318
1319 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s\n",
1320 tiqn->tiqn);
1321 iscsit_del_tiqn(tiqn);
1322 }
1323
1324 /* End LIO-Target TIQN struct contig_lio_target_cit */
1325
1326 /* Start lio_target_discovery_auth_cit */
1327
1328 #define DEF_DISC_AUTH_STR(name, flags) \
1329 __DEF_NACL_AUTH_STR(disc, name, flags) \
1330 static ssize_t iscsi_disc_show_##name( \
1331 struct target_fabric_configfs *tf, \
1332 char *page) \
1333 { \
1334 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \
1335 page); \
1336 } \
1337 static ssize_t iscsi_disc_store_##name( \
1338 struct target_fabric_configfs *tf, \
1339 const char *page, \
1340 size_t count) \
1341 { \
1342 return __iscsi_disc_store_##name(&iscsit_global->discovery_acl, \
1343 page, count); \
1344 }
1345
1346 #define DEF_DISC_AUTH_INT(name) \
1347 __DEF_NACL_AUTH_INT(disc, name) \
1348 static 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 }
1355
1356 #define DISC_AUTH_ATTR(_name, _mode) TF_DISC_ATTR(iscsi, _name, _mode)
1357 #define DISC_AUTH_ATTR_RO(_name) TF_DISC_ATTR_RO(iscsi, _name)
1358
1359 /*
1360 * One-way authentication userid
1361 */
1362 DEF_DISC_AUTH_STR(userid, NAF_USERID_SET);
1363 DISC_AUTH_ATTR(userid, S_IRUGO | S_IWUSR);
1364 /*
1365 * One-way authentication password
1366 */
1367 DEF_DISC_AUTH_STR(password, NAF_PASSWORD_SET);
1368 DISC_AUTH_ATTR(password, S_IRUGO | S_IWUSR);
1369 /*
1370 * Enforce mutual authentication
1371 */
1372 DEF_DISC_AUTH_INT(authenticate_target);
1373 DISC_AUTH_ATTR_RO(authenticate_target);
1374 /*
1375 * Mutual authentication userid
1376 */
1377 DEF_DISC_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
1378 DISC_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR);
1379 /*
1380 * Mutual authentication password
1381 */
1382 DEF_DISC_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
1383 DISC_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR);
1384
1385 /*
1386 * enforce_discovery_auth
1387 */
1388 static ssize_t iscsi_disc_show_enforce_discovery_auth(
1389 struct target_fabric_configfs *tf,
1390 char *page)
1391 {
1392 struct iscsi_node_auth *discovery_auth = &iscsit_global->discovery_acl.node_auth;
1393
1394 return sprintf(page, "%d\n", discovery_auth->enforce_discovery_auth);
1395 }
1396
1397 static ssize_t iscsi_disc_store_enforce_discovery_auth(
1398 struct target_fabric_configfs *tf,
1399 const char *page,
1400 size_t count)
1401 {
1402 struct iscsi_param *param;
1403 struct iscsi_portal_group *discovery_tpg = iscsit_global->discovery_tpg;
1404 char *endptr;
1405 u32 op;
1406
1407 op = simple_strtoul(page, &endptr, 0);
1408 if ((op != 1) && (op != 0)) {
1409 pr_err("Illegal value for enforce_discovery_auth:"
1410 " %u\n", op);
1411 return -EINVAL;
1412 }
1413
1414 if (!discovery_tpg) {
1415 pr_err("iscsit_global->discovery_tpg is NULL\n");
1416 return -EINVAL;
1417 }
1418
1419 param = iscsi_find_param_from_key(AUTHMETHOD,
1420 discovery_tpg->param_list);
1421 if (!param)
1422 return -EINVAL;
1423
1424 if (op) {
1425 /*
1426 * Reset the AuthMethod key to CHAP.
1427 */
1428 if (iscsi_update_param_value(param, CHAP) < 0)
1429 return -EINVAL;
1430
1431 discovery_tpg->tpg_attrib.authentication = 1;
1432 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 1;
1433 pr_debug("LIO-CORE[0] Successfully enabled"
1434 " authentication enforcement for iSCSI"
1435 " Discovery TPG\n");
1436 } else {
1437 /*
1438 * Reset the AuthMethod key to CHAP,None
1439 */
1440 if (iscsi_update_param_value(param, "CHAP,None") < 0)
1441 return -EINVAL;
1442
1443 discovery_tpg->tpg_attrib.authentication = 0;
1444 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 0;
1445 pr_debug("LIO-CORE[0] Successfully disabled"
1446 " authentication enforcement for iSCSI"
1447 " Discovery TPG\n");
1448 }
1449
1450 return count;
1451 }
1452
1453 DISC_AUTH_ATTR(enforce_discovery_auth, S_IRUGO | S_IWUSR);
1454
1455 static struct configfs_attribute *lio_target_discovery_auth_attrs[] = {
1456 &iscsi_disc_userid.attr,
1457 &iscsi_disc_password.attr,
1458 &iscsi_disc_authenticate_target.attr,
1459 &iscsi_disc_userid_mutual.attr,
1460 &iscsi_disc_password_mutual.attr,
1461 &iscsi_disc_enforce_discovery_auth.attr,
1462 NULL,
1463 };
1464
1465 /* End lio_target_discovery_auth_cit */
1466
1467 /* Start functions for target_core_fabric_ops */
1468
1469 static char *iscsi_get_fabric_name(void)
1470 {
1471 return "iSCSI";
1472 }
1473
1474 static u32 iscsi_get_task_tag(struct se_cmd *se_cmd)
1475 {
1476 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1477
1478 /* only used for printks or comparism with ->ref_task_tag */
1479 return (__force u32)cmd->init_task_tag;
1480 }
1481
1482 static int iscsi_get_cmd_state(struct se_cmd *se_cmd)
1483 {
1484 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1485
1486 return cmd->i_state;
1487 }
1488
1489 static u32 lio_sess_get_index(struct se_session *se_sess)
1490 {
1491 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1492
1493 return sess->session_index;
1494 }
1495
1496 static u32 lio_sess_get_initiator_sid(
1497 struct se_session *se_sess,
1498 unsigned char *buf,
1499 u32 size)
1500 {
1501 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1502 /*
1503 * iSCSI Initiator Session Identifier from RFC-3720.
1504 */
1505 return snprintf(buf, size, "%02x%02x%02x%02x%02x%02x",
1506 sess->isid[0], sess->isid[1], sess->isid[2],
1507 sess->isid[3], sess->isid[4], sess->isid[5]);
1508 }
1509
1510 static int lio_queue_data_in(struct se_cmd *se_cmd)
1511 {
1512 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1513
1514 cmd->i_state = ISTATE_SEND_DATAIN;
1515 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
1516 return 0;
1517 }
1518
1519 static int lio_write_pending(struct se_cmd *se_cmd)
1520 {
1521 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1522
1523 if (!cmd->immediate_data && !cmd->unsolicited_data)
1524 return iscsit_build_r2ts_for_cmd(cmd, cmd->conn, false);
1525
1526 return 0;
1527 }
1528
1529 static int lio_write_pending_status(struct se_cmd *se_cmd)
1530 {
1531 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1532 int ret;
1533
1534 spin_lock_bh(&cmd->istate_lock);
1535 ret = !(cmd->cmd_flags & ICF_GOT_LAST_DATAOUT);
1536 spin_unlock_bh(&cmd->istate_lock);
1537
1538 return ret;
1539 }
1540
1541 static int lio_queue_status(struct se_cmd *se_cmd)
1542 {
1543 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1544
1545 cmd->i_state = ISTATE_SEND_STATUS;
1546 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
1547 return 0;
1548 }
1549
1550 static int lio_queue_tm_rsp(struct se_cmd *se_cmd)
1551 {
1552 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1553
1554 cmd->i_state = ISTATE_SEND_TASKMGTRSP;
1555 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
1556 return 0;
1557 }
1558
1559 static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg)
1560 {
1561 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1562
1563 return &tpg->tpg_tiqn->tiqn[0];
1564 }
1565
1566 static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg)
1567 {
1568 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1569
1570 return tpg->tpgt;
1571 }
1572
1573 static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg)
1574 {
1575 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1576
1577 return ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth;
1578 }
1579
1580 static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg)
1581 {
1582 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1583
1584 return ISCSI_TPG_ATTRIB(tpg)->generate_node_acls;
1585 }
1586
1587 static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg)
1588 {
1589 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1590
1591 return ISCSI_TPG_ATTRIB(tpg)->cache_dynamic_acls;
1592 }
1593
1594 static int lio_tpg_check_demo_mode_write_protect(
1595 struct se_portal_group *se_tpg)
1596 {
1597 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1598
1599 return ISCSI_TPG_ATTRIB(tpg)->demo_mode_write_protect;
1600 }
1601
1602 static int lio_tpg_check_prod_mode_write_protect(
1603 struct se_portal_group *se_tpg)
1604 {
1605 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1606
1607 return ISCSI_TPG_ATTRIB(tpg)->prod_mode_write_protect;
1608 }
1609
1610 static void lio_tpg_release_fabric_acl(
1611 struct se_portal_group *se_tpg,
1612 struct se_node_acl *se_acl)
1613 {
1614 struct iscsi_node_acl *acl = container_of(se_acl,
1615 struct iscsi_node_acl, se_node_acl);
1616 kfree(acl);
1617 }
1618
1619 /*
1620 * Called with spin_lock_bh(struct se_portal_group->session_lock) held..
1621 *
1622 * Also, this function calls iscsit_inc_session_usage_count() on the
1623 * struct iscsi_session in question.
1624 */
1625 static int lio_tpg_shutdown_session(struct se_session *se_sess)
1626 {
1627 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1628
1629 spin_lock(&sess->conn_lock);
1630 if (atomic_read(&sess->session_fall_back_to_erl0) ||
1631 atomic_read(&sess->session_logout) ||
1632 (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) {
1633 spin_unlock(&sess->conn_lock);
1634 return 0;
1635 }
1636 atomic_set(&sess->session_reinstatement, 1);
1637 spin_unlock(&sess->conn_lock);
1638
1639 iscsit_stop_time2retain_timer(sess);
1640 iscsit_stop_session(sess, 1, 1);
1641
1642 return 1;
1643 }
1644
1645 /*
1646 * Calls iscsit_dec_session_usage_count() as inverse of
1647 * lio_tpg_shutdown_session()
1648 */
1649 static void lio_tpg_close_session(struct se_session *se_sess)
1650 {
1651 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1652 /*
1653 * If the iSCSI Session for the iSCSI Initiator Node exists,
1654 * forcefully shutdown the iSCSI NEXUS.
1655 */
1656 iscsit_close_session(sess);
1657 }
1658
1659 static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg)
1660 {
1661 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1662
1663 return tpg->tpg_tiqn->tiqn_index;
1664 }
1665
1666 static void lio_set_default_node_attributes(struct se_node_acl *se_acl)
1667 {
1668 struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl,
1669 se_node_acl);
1670
1671 ISCSI_NODE_ATTRIB(acl)->nacl = acl;
1672 iscsit_set_default_node_attribues(acl);
1673 }
1674
1675 static void lio_release_cmd(struct se_cmd *se_cmd)
1676 {
1677 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1678
1679 iscsit_release_cmd(cmd);
1680 }
1681
1682 /* End functions for target_core_fabric_ops */
1683
1684 int iscsi_target_register_configfs(void)
1685 {
1686 struct target_fabric_configfs *fabric;
1687 int ret;
1688
1689 lio_target_fabric_configfs = NULL;
1690 fabric = target_fabric_configfs_init(THIS_MODULE, "iscsi");
1691 if (IS_ERR(fabric)) {
1692 pr_err("target_fabric_configfs_init() for"
1693 " LIO-Target failed!\n");
1694 return PTR_ERR(fabric);
1695 }
1696 /*
1697 * Setup the fabric API of function pointers used by target_core_mod..
1698 */
1699 fabric->tf_ops.get_fabric_name = &iscsi_get_fabric_name;
1700 fabric->tf_ops.get_fabric_proto_ident = &iscsi_get_fabric_proto_ident;
1701 fabric->tf_ops.tpg_get_wwn = &lio_tpg_get_endpoint_wwn;
1702 fabric->tf_ops.tpg_get_tag = &lio_tpg_get_tag;
1703 fabric->tf_ops.tpg_get_default_depth = &lio_tpg_get_default_depth;
1704 fabric->tf_ops.tpg_get_pr_transport_id = &iscsi_get_pr_transport_id;
1705 fabric->tf_ops.tpg_get_pr_transport_id_len =
1706 &iscsi_get_pr_transport_id_len;
1707 fabric->tf_ops.tpg_parse_pr_out_transport_id =
1708 &iscsi_parse_pr_out_transport_id;
1709 fabric->tf_ops.tpg_check_demo_mode = &lio_tpg_check_demo_mode;
1710 fabric->tf_ops.tpg_check_demo_mode_cache =
1711 &lio_tpg_check_demo_mode_cache;
1712 fabric->tf_ops.tpg_check_demo_mode_write_protect =
1713 &lio_tpg_check_demo_mode_write_protect;
1714 fabric->tf_ops.tpg_check_prod_mode_write_protect =
1715 &lio_tpg_check_prod_mode_write_protect;
1716 fabric->tf_ops.tpg_alloc_fabric_acl = &lio_tpg_alloc_fabric_acl;
1717 fabric->tf_ops.tpg_release_fabric_acl = &lio_tpg_release_fabric_acl;
1718 fabric->tf_ops.tpg_get_inst_index = &lio_tpg_get_inst_index;
1719 fabric->tf_ops.release_cmd = &lio_release_cmd;
1720 fabric->tf_ops.shutdown_session = &lio_tpg_shutdown_session;
1721 fabric->tf_ops.close_session = &lio_tpg_close_session;
1722 fabric->tf_ops.sess_get_index = &lio_sess_get_index;
1723 fabric->tf_ops.sess_get_initiator_sid = &lio_sess_get_initiator_sid;
1724 fabric->tf_ops.write_pending = &lio_write_pending;
1725 fabric->tf_ops.write_pending_status = &lio_write_pending_status;
1726 fabric->tf_ops.set_default_node_attributes =
1727 &lio_set_default_node_attributes;
1728 fabric->tf_ops.get_task_tag = &iscsi_get_task_tag;
1729 fabric->tf_ops.get_cmd_state = &iscsi_get_cmd_state;
1730 fabric->tf_ops.queue_data_in = &lio_queue_data_in;
1731 fabric->tf_ops.queue_status = &lio_queue_status;
1732 fabric->tf_ops.queue_tm_rsp = &lio_queue_tm_rsp;
1733 /*
1734 * Setup function pointers for generic logic in target_core_fabric_configfs.c
1735 */
1736 fabric->tf_ops.fabric_make_wwn = &lio_target_call_coreaddtiqn;
1737 fabric->tf_ops.fabric_drop_wwn = &lio_target_call_coredeltiqn;
1738 fabric->tf_ops.fabric_make_tpg = &lio_target_tiqn_addtpg;
1739 fabric->tf_ops.fabric_drop_tpg = &lio_target_tiqn_deltpg;
1740 fabric->tf_ops.fabric_post_link = NULL;
1741 fabric->tf_ops.fabric_pre_unlink = NULL;
1742 fabric->tf_ops.fabric_make_np = &lio_target_call_addnptotpg;
1743 fabric->tf_ops.fabric_drop_np = &lio_target_call_delnpfromtpg;
1744 fabric->tf_ops.fabric_make_nodeacl = &lio_target_make_nodeacl;
1745 fabric->tf_ops.fabric_drop_nodeacl = &lio_target_drop_nodeacl;
1746 /*
1747 * Setup default attribute lists for various fabric->tf_cit_tmpl
1748 * sturct config_item_type's
1749 */
1750 TF_CIT_TMPL(fabric)->tfc_discovery_cit.ct_attrs = lio_target_discovery_auth_attrs;
1751 TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = lio_target_wwn_attrs;
1752 TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = lio_target_tpg_attrs;
1753 TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = lio_target_tpg_attrib_attrs;
1754 TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = lio_target_tpg_param_attrs;
1755 TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = lio_target_portal_attrs;
1756 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = lio_target_initiator_attrs;
1757 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = lio_target_nacl_attrib_attrs;
1758 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = lio_target_nacl_auth_attrs;
1759 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = lio_target_nacl_param_attrs;
1760
1761 ret = target_fabric_configfs_register(fabric);
1762 if (ret < 0) {
1763 pr_err("target_fabric_configfs_register() for"
1764 " LIO-Target failed!\n");
1765 target_fabric_configfs_free(fabric);
1766 return ret;
1767 }
1768
1769 lio_target_fabric_configfs = fabric;
1770 pr_debug("LIO_TARGET[0] - Set fabric ->"
1771 " lio_target_fabric_configfs\n");
1772 return 0;
1773 }
1774
1775
1776 void iscsi_target_deregister_configfs(void)
1777 {
1778 if (!lio_target_fabric_configfs)
1779 return;
1780 /*
1781 * Shutdown discovery sessions and disable discovery TPG
1782 */
1783 if (iscsit_global->discovery_tpg)
1784 iscsit_tpg_disable_portal_group(iscsit_global->discovery_tpg, 1);
1785
1786 target_fabric_configfs_deregister(lio_target_fabric_configfs);
1787 lio_target_fabric_configfs = NULL;
1788 pr_debug("LIO_TARGET[0] - Cleared"
1789 " lio_target_fabric_configfs\n");
1790 }
(deprecated) Btrfs devel tree