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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
[deliverable/linux.git] / drivers / target / iscsi / iscsi_target_configfs.c
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 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(MaxBurstLength);
1038 TPG_PARAM_ATTR(MaxBurstLength, S_IRUGO | S_IWUSR);
1039
1040 DEF_TPG_PARAM(FirstBurstLength);
1041 TPG_PARAM_ATTR(FirstBurstLength, S_IRUGO | S_IWUSR);
1042
1043 DEF_TPG_PARAM(DefaultTime2Wait);
1044 TPG_PARAM_ATTR(DefaultTime2Wait, S_IRUGO | S_IWUSR);
1045
1046 DEF_TPG_PARAM(DefaultTime2Retain);
1047 TPG_PARAM_ATTR(DefaultTime2Retain, S_IRUGO | S_IWUSR);
1048
1049 DEF_TPG_PARAM(MaxOutstandingR2T);
1050 TPG_PARAM_ATTR(MaxOutstandingR2T, S_IRUGO | S_IWUSR);
1051
1052 DEF_TPG_PARAM(DataPDUInOrder);
1053 TPG_PARAM_ATTR(DataPDUInOrder, S_IRUGO | S_IWUSR);
1054
1055 DEF_TPG_PARAM(DataSequenceInOrder);
1056 TPG_PARAM_ATTR(DataSequenceInOrder, S_IRUGO | S_IWUSR);
1057
1058 DEF_TPG_PARAM(ErrorRecoveryLevel);
1059 TPG_PARAM_ATTR(ErrorRecoveryLevel, S_IRUGO | S_IWUSR);
1060
1061 DEF_TPG_PARAM(IFMarker);
1062 TPG_PARAM_ATTR(IFMarker, S_IRUGO | S_IWUSR);
1063
1064 DEF_TPG_PARAM(OFMarker);
1065 TPG_PARAM_ATTR(OFMarker, S_IRUGO | S_IWUSR);
1066
1067 DEF_TPG_PARAM(IFMarkInt);
1068 TPG_PARAM_ATTR(IFMarkInt, S_IRUGO | S_IWUSR);
1069
1070 DEF_TPG_PARAM(OFMarkInt);
1071 TPG_PARAM_ATTR(OFMarkInt, S_IRUGO | S_IWUSR);
1072
1073 static struct configfs_attribute *lio_target_tpg_param_attrs[] = {
1074 &iscsi_tpg_param_AuthMethod.attr,
1075 &iscsi_tpg_param_HeaderDigest.attr,
1076 &iscsi_tpg_param_DataDigest.attr,
1077 &iscsi_tpg_param_MaxConnections.attr,
1078 &iscsi_tpg_param_TargetAlias.attr,
1079 &iscsi_tpg_param_InitialR2T.attr,
1080 &iscsi_tpg_param_ImmediateData.attr,
1081 &iscsi_tpg_param_MaxRecvDataSegmentLength.attr,
1082 &iscsi_tpg_param_MaxBurstLength.attr,
1083 &iscsi_tpg_param_FirstBurstLength.attr,
1084 &iscsi_tpg_param_DefaultTime2Wait.attr,
1085 &iscsi_tpg_param_DefaultTime2Retain.attr,
1086 &iscsi_tpg_param_MaxOutstandingR2T.attr,
1087 &iscsi_tpg_param_DataPDUInOrder.attr,
1088 &iscsi_tpg_param_DataSequenceInOrder.attr,
1089 &iscsi_tpg_param_ErrorRecoveryLevel.attr,
1090 &iscsi_tpg_param_IFMarker.attr,
1091 &iscsi_tpg_param_OFMarker.attr,
1092 &iscsi_tpg_param_IFMarkInt.attr,
1093 &iscsi_tpg_param_OFMarkInt.attr,
1094 NULL,
1095 };
1096
1097 /* End items for lio_target_tpg_param_cit */
1098
1099 /* Start items for lio_target_tpg_cit */
1100
1101 static ssize_t lio_target_tpg_show_enable(
1102 struct se_portal_group *se_tpg,
1103 char *page)
1104 {
1105 struct iscsi_portal_group *tpg = container_of(se_tpg,
1106 struct iscsi_portal_group, tpg_se_tpg);
1107 ssize_t len;
1108
1109 spin_lock(&tpg->tpg_state_lock);
1110 len = sprintf(page, "%d\n",
1111 (tpg->tpg_state == TPG_STATE_ACTIVE) ? 1 : 0);
1112 spin_unlock(&tpg->tpg_state_lock);
1113
1114 return len;
1115 }
1116
1117 static ssize_t lio_target_tpg_store_enable(
1118 struct se_portal_group *se_tpg,
1119 const char *page,
1120 size_t count)
1121 {
1122 struct iscsi_portal_group *tpg = container_of(se_tpg,
1123 struct iscsi_portal_group, tpg_se_tpg);
1124 char *endptr;
1125 u32 op;
1126 int ret = 0;
1127
1128 op = simple_strtoul(page, &endptr, 0);
1129 if ((op != 1) && (op != 0)) {
1130 pr_err("Illegal value for tpg_enable: %u\n", op);
1131 return -EINVAL;
1132 }
1133
1134 ret = iscsit_get_tpg(tpg);
1135 if (ret < 0)
1136 return -EINVAL;
1137
1138 if (op) {
1139 ret = iscsit_tpg_enable_portal_group(tpg);
1140 if (ret < 0)
1141 goto out;
1142 } else {
1143 /*
1144 * iscsit_tpg_disable_portal_group() assumes force=1
1145 */
1146 ret = iscsit_tpg_disable_portal_group(tpg, 1);
1147 if (ret < 0)
1148 goto out;
1149 }
1150
1151 iscsit_put_tpg(tpg);
1152 return count;
1153 out:
1154 iscsit_put_tpg(tpg);
1155 return -EINVAL;
1156 }
1157
1158 TF_TPG_BASE_ATTR(lio_target, enable, S_IRUGO | S_IWUSR);
1159
1160 static struct configfs_attribute *lio_target_tpg_attrs[] = {
1161 &lio_target_tpg_enable.attr,
1162 NULL,
1163 };
1164
1165 /* End items for lio_target_tpg_cit */
1166
1167 /* Start items for lio_target_tiqn_cit */
1168
1169 struct se_portal_group *lio_target_tiqn_addtpg(
1170 struct se_wwn *wwn,
1171 struct config_group *group,
1172 const char *name)
1173 {
1174 struct iscsi_portal_group *tpg;
1175 struct iscsi_tiqn *tiqn;
1176 char *tpgt_str, *end_ptr;
1177 int ret = 0;
1178 unsigned short int tpgt;
1179
1180 tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
1181 /*
1182 * Only tpgt_# directory groups can be created below
1183 * target/iscsi/iqn.superturodiskarry/
1184 */
1185 tpgt_str = strstr(name, "tpgt_");
1186 if (!tpgt_str) {
1187 pr_err("Unable to locate \"tpgt_#\" directory"
1188 " group\n");
1189 return NULL;
1190 }
1191 tpgt_str += 5; /* Skip ahead of "tpgt_" */
1192 tpgt = (unsigned short int) simple_strtoul(tpgt_str, &end_ptr, 0);
1193
1194 tpg = iscsit_alloc_portal_group(tiqn, tpgt);
1195 if (!tpg)
1196 return NULL;
1197
1198 ret = core_tpg_register(
1199 &lio_target_fabric_configfs->tf_ops,
1200 wwn, &tpg->tpg_se_tpg, tpg,
1201 TRANSPORT_TPG_TYPE_NORMAL);
1202 if (ret < 0)
1203 return NULL;
1204
1205 ret = iscsit_tpg_add_portal_group(tiqn, tpg);
1206 if (ret != 0)
1207 goto out;
1208
1209 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn);
1210 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated TPG: %s\n",
1211 name);
1212 return &tpg->tpg_se_tpg;
1213 out:
1214 core_tpg_deregister(&tpg->tpg_se_tpg);
1215 kfree(tpg);
1216 return NULL;
1217 }
1218
1219 void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg)
1220 {
1221 struct iscsi_portal_group *tpg;
1222 struct iscsi_tiqn *tiqn;
1223
1224 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
1225 tiqn = tpg->tpg_tiqn;
1226 /*
1227 * iscsit_tpg_del_portal_group() assumes force=1
1228 */
1229 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> Releasing TPG\n");
1230 iscsit_tpg_del_portal_group(tiqn, tpg, 1);
1231 }
1232
1233 /* End items for lio_target_tiqn_cit */
1234
1235 /* Start LIO-Target TIQN struct contig_item lio_target_cit */
1236
1237 static ssize_t lio_target_wwn_show_attr_lio_version(
1238 struct target_fabric_configfs *tf,
1239 char *page)
1240 {
1241 return sprintf(page, "RisingTide Systems Linux-iSCSI Target "ISCSIT_VERSION"\n");
1242 }
1243
1244 TF_WWN_ATTR_RO(lio_target, lio_version);
1245
1246 static struct configfs_attribute *lio_target_wwn_attrs[] = {
1247 &lio_target_wwn_lio_version.attr,
1248 NULL,
1249 };
1250
1251 struct se_wwn *lio_target_call_coreaddtiqn(
1252 struct target_fabric_configfs *tf,
1253 struct config_group *group,
1254 const char *name)
1255 {
1256 struct config_group *stats_cg;
1257 struct iscsi_tiqn *tiqn;
1258
1259 tiqn = iscsit_add_tiqn((unsigned char *)name);
1260 if (IS_ERR(tiqn))
1261 return ERR_CAST(tiqn);
1262 /*
1263 * Setup struct iscsi_wwn_stat_grps for se_wwn->fabric_stat_group.
1264 */
1265 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group;
1266
1267 stats_cg->default_groups = kzalloc(sizeof(struct config_group) * 6,
1268 GFP_KERNEL);
1269 if (!stats_cg->default_groups) {
1270 pr_err("Unable to allocate memory for"
1271 " stats_cg->default_groups\n");
1272 iscsit_del_tiqn(tiqn);
1273 return ERR_PTR(-ENOMEM);
1274 }
1275
1276 stats_cg->default_groups[0] = &WWN_STAT_GRPS(tiqn)->iscsi_instance_group;
1277 stats_cg->default_groups[1] = &WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group;
1278 stats_cg->default_groups[2] = &WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group;
1279 stats_cg->default_groups[3] = &WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group;
1280 stats_cg->default_groups[4] = &WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group;
1281 stats_cg->default_groups[5] = NULL;
1282 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_instance_group,
1283 "iscsi_instance", &iscsi_stat_instance_cit);
1284 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group,
1285 "iscsi_sess_err", &iscsi_stat_sess_err_cit);
1286 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group,
1287 "iscsi_tgt_attr", &iscsi_stat_tgt_attr_cit);
1288 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group,
1289 "iscsi_login_stats", &iscsi_stat_login_cit);
1290 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group,
1291 "iscsi_logout_stats", &iscsi_stat_logout_cit);
1292
1293 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn);
1294 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated Node:"
1295 " %s\n", name);
1296 return &tiqn->tiqn_wwn;
1297 }
1298
1299 void lio_target_call_coredeltiqn(
1300 struct se_wwn *wwn)
1301 {
1302 struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
1303 struct config_item *df_item;
1304 struct config_group *stats_cg;
1305 int i;
1306
1307 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group;
1308 for (i = 0; stats_cg->default_groups[i]; i++) {
1309 df_item = &stats_cg->default_groups[i]->cg_item;
1310 stats_cg->default_groups[i] = NULL;
1311 config_item_put(df_item);
1312 }
1313 kfree(stats_cg->default_groups);
1314
1315 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s\n",
1316 tiqn->tiqn);
1317 iscsit_del_tiqn(tiqn);
1318 }
1319
1320 /* End LIO-Target TIQN struct contig_lio_target_cit */
1321
1322 /* Start lio_target_discovery_auth_cit */
1323
1324 #define DEF_DISC_AUTH_STR(name, flags) \
1325 __DEF_NACL_AUTH_STR(disc, name, flags) \
1326 static ssize_t iscsi_disc_show_##name( \
1327 struct target_fabric_configfs *tf, \
1328 char *page) \
1329 { \
1330 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \
1331 page); \
1332 } \
1333 static ssize_t iscsi_disc_store_##name( \
1334 struct target_fabric_configfs *tf, \
1335 const char *page, \
1336 size_t count) \
1337 { \
1338 return __iscsi_disc_store_##name(&iscsit_global->discovery_acl, \
1339 page, count); \
1340 }
1341
1342 #define DEF_DISC_AUTH_INT(name) \
1343 __DEF_NACL_AUTH_INT(disc, name) \
1344 static ssize_t iscsi_disc_show_##name( \
1345 struct target_fabric_configfs *tf, \
1346 char *page) \
1347 { \
1348 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \
1349 page); \
1350 }
1351
1352 #define DISC_AUTH_ATTR(_name, _mode) TF_DISC_ATTR(iscsi, _name, _mode)
1353 #define DISC_AUTH_ATTR_RO(_name) TF_DISC_ATTR_RO(iscsi, _name)
1354
1355 /*
1356 * One-way authentication userid
1357 */
1358 DEF_DISC_AUTH_STR(userid, NAF_USERID_SET);
1359 DISC_AUTH_ATTR(userid, S_IRUGO | S_IWUSR);
1360 /*
1361 * One-way authentication password
1362 */
1363 DEF_DISC_AUTH_STR(password, NAF_PASSWORD_SET);
1364 DISC_AUTH_ATTR(password, S_IRUGO | S_IWUSR);
1365 /*
1366 * Enforce mutual authentication
1367 */
1368 DEF_DISC_AUTH_INT(authenticate_target);
1369 DISC_AUTH_ATTR_RO(authenticate_target);
1370 /*
1371 * Mutual authentication userid
1372 */
1373 DEF_DISC_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
1374 DISC_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR);
1375 /*
1376 * Mutual authentication password
1377 */
1378 DEF_DISC_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
1379 DISC_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR);
1380
1381 /*
1382 * enforce_discovery_auth
1383 */
1384 static ssize_t iscsi_disc_show_enforce_discovery_auth(
1385 struct target_fabric_configfs *tf,
1386 char *page)
1387 {
1388 struct iscsi_node_auth *discovery_auth = &iscsit_global->discovery_acl.node_auth;
1389
1390 return sprintf(page, "%d\n", discovery_auth->enforce_discovery_auth);
1391 }
1392
1393 static ssize_t iscsi_disc_store_enforce_discovery_auth(
1394 struct target_fabric_configfs *tf,
1395 const char *page,
1396 size_t count)
1397 {
1398 struct iscsi_param *param;
1399 struct iscsi_portal_group *discovery_tpg = iscsit_global->discovery_tpg;
1400 char *endptr;
1401 u32 op;
1402
1403 op = simple_strtoul(page, &endptr, 0);
1404 if ((op != 1) && (op != 0)) {
1405 pr_err("Illegal value for enforce_discovery_auth:"
1406 " %u\n", op);
1407 return -EINVAL;
1408 }
1409
1410 if (!discovery_tpg) {
1411 pr_err("iscsit_global->discovery_tpg is NULL\n");
1412 return -EINVAL;
1413 }
1414
1415 param = iscsi_find_param_from_key(AUTHMETHOD,
1416 discovery_tpg->param_list);
1417 if (!param)
1418 return -EINVAL;
1419
1420 if (op) {
1421 /*
1422 * Reset the AuthMethod key to CHAP.
1423 */
1424 if (iscsi_update_param_value(param, CHAP) < 0)
1425 return -EINVAL;
1426
1427 discovery_tpg->tpg_attrib.authentication = 1;
1428 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 1;
1429 pr_debug("LIO-CORE[0] Successfully enabled"
1430 " authentication enforcement for iSCSI"
1431 " Discovery TPG\n");
1432 } else {
1433 /*
1434 * Reset the AuthMethod key to CHAP,None
1435 */
1436 if (iscsi_update_param_value(param, "CHAP,None") < 0)
1437 return -EINVAL;
1438
1439 discovery_tpg->tpg_attrib.authentication = 0;
1440 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 0;
1441 pr_debug("LIO-CORE[0] Successfully disabled"
1442 " authentication enforcement for iSCSI"
1443 " Discovery TPG\n");
1444 }
1445
1446 return count;
1447 }
1448
1449 DISC_AUTH_ATTR(enforce_discovery_auth, S_IRUGO | S_IWUSR);
1450
1451 static struct configfs_attribute *lio_target_discovery_auth_attrs[] = {
1452 &iscsi_disc_userid.attr,
1453 &iscsi_disc_password.attr,
1454 &iscsi_disc_authenticate_target.attr,
1455 &iscsi_disc_userid_mutual.attr,
1456 &iscsi_disc_password_mutual.attr,
1457 &iscsi_disc_enforce_discovery_auth.attr,
1458 NULL,
1459 };
1460
1461 /* End lio_target_discovery_auth_cit */
1462
1463 /* Start functions for target_core_fabric_ops */
1464
1465 static char *iscsi_get_fabric_name(void)
1466 {
1467 return "iSCSI";
1468 }
1469
1470 static u32 iscsi_get_task_tag(struct se_cmd *se_cmd)
1471 {
1472 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1473
1474 return cmd->init_task_tag;
1475 }
1476
1477 static int iscsi_get_cmd_state(struct se_cmd *se_cmd)
1478 {
1479 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1480
1481 return cmd->i_state;
1482 }
1483
1484 static u32 lio_sess_get_index(struct se_session *se_sess)
1485 {
1486 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1487
1488 return sess->session_index;
1489 }
1490
1491 static u32 lio_sess_get_initiator_sid(
1492 struct se_session *se_sess,
1493 unsigned char *buf,
1494 u32 size)
1495 {
1496 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1497 /*
1498 * iSCSI Initiator Session Identifier from RFC-3720.
1499 */
1500 return snprintf(buf, size, "%02x%02x%02x%02x%02x%02x",
1501 sess->isid[0], sess->isid[1], sess->isid[2],
1502 sess->isid[3], sess->isid[4], sess->isid[5]);
1503 }
1504
1505 static int lio_queue_data_in(struct se_cmd *se_cmd)
1506 {
1507 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1508
1509 cmd->i_state = ISTATE_SEND_DATAIN;
1510 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
1511 return 0;
1512 }
1513
1514 static int lio_write_pending(struct se_cmd *se_cmd)
1515 {
1516 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1517
1518 if (!cmd->immediate_data && !cmd->unsolicited_data)
1519 return iscsit_build_r2ts_for_cmd(cmd, cmd->conn, false);
1520
1521 return 0;
1522 }
1523
1524 static int lio_write_pending_status(struct se_cmd *se_cmd)
1525 {
1526 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1527 int ret;
1528
1529 spin_lock_bh(&cmd->istate_lock);
1530 ret = !(cmd->cmd_flags & ICF_GOT_LAST_DATAOUT);
1531 spin_unlock_bh(&cmd->istate_lock);
1532
1533 return ret;
1534 }
1535
1536 static int lio_queue_status(struct se_cmd *se_cmd)
1537 {
1538 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1539
1540 cmd->i_state = ISTATE_SEND_STATUS;
1541 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
1542 return 0;
1543 }
1544
1545 static u16 lio_set_fabric_sense_len(struct se_cmd *se_cmd, u32 sense_length)
1546 {
1547 unsigned char *buffer = se_cmd->sense_buffer;
1548 /*
1549 * From RFC-3720 10.4.7. Data Segment - Sense and Response Data Segment
1550 * 16-bit SenseLength.
1551 */
1552 buffer[0] = ((sense_length >> 8) & 0xff);
1553 buffer[1] = (sense_length & 0xff);
1554 /*
1555 * Return two byte offset into allocated sense_buffer.
1556 */
1557 return 2;
1558 }
1559
1560 static u16 lio_get_fabric_sense_len(void)
1561 {
1562 /*
1563 * Return two byte offset into allocated sense_buffer.
1564 */
1565 return 2;
1566 }
1567
1568 static int lio_queue_tm_rsp(struct se_cmd *se_cmd)
1569 {
1570 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1571
1572 cmd->i_state = ISTATE_SEND_TASKMGTRSP;
1573 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
1574 return 0;
1575 }
1576
1577 static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg)
1578 {
1579 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1580
1581 return &tpg->tpg_tiqn->tiqn[0];
1582 }
1583
1584 static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg)
1585 {
1586 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1587
1588 return tpg->tpgt;
1589 }
1590
1591 static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg)
1592 {
1593 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1594
1595 return ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth;
1596 }
1597
1598 static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg)
1599 {
1600 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1601
1602 return ISCSI_TPG_ATTRIB(tpg)->generate_node_acls;
1603 }
1604
1605 static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg)
1606 {
1607 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1608
1609 return ISCSI_TPG_ATTRIB(tpg)->cache_dynamic_acls;
1610 }
1611
1612 static int lio_tpg_check_demo_mode_write_protect(
1613 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)->demo_mode_write_protect;
1618 }
1619
1620 static int lio_tpg_check_prod_mode_write_protect(
1621 struct se_portal_group *se_tpg)
1622 {
1623 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1624
1625 return ISCSI_TPG_ATTRIB(tpg)->prod_mode_write_protect;
1626 }
1627
1628 static void lio_tpg_release_fabric_acl(
1629 struct se_portal_group *se_tpg,
1630 struct se_node_acl *se_acl)
1631 {
1632 struct iscsi_node_acl *acl = container_of(se_acl,
1633 struct iscsi_node_acl, se_node_acl);
1634 kfree(acl);
1635 }
1636
1637 /*
1638 * Called with spin_lock_bh(struct se_portal_group->session_lock) held..
1639 *
1640 * Also, this function calls iscsit_inc_session_usage_count() on the
1641 * struct iscsi_session in question.
1642 */
1643 static int lio_tpg_shutdown_session(struct se_session *se_sess)
1644 {
1645 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1646
1647 spin_lock(&sess->conn_lock);
1648 if (atomic_read(&sess->session_fall_back_to_erl0) ||
1649 atomic_read(&sess->session_logout) ||
1650 (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) {
1651 spin_unlock(&sess->conn_lock);
1652 return 0;
1653 }
1654 atomic_set(&sess->session_reinstatement, 1);
1655 spin_unlock(&sess->conn_lock);
1656
1657 iscsit_stop_time2retain_timer(sess);
1658 iscsit_stop_session(sess, 1, 1);
1659
1660 return 1;
1661 }
1662
1663 /*
1664 * Calls iscsit_dec_session_usage_count() as inverse of
1665 * lio_tpg_shutdown_session()
1666 */
1667 static void lio_tpg_close_session(struct se_session *se_sess)
1668 {
1669 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1670 /*
1671 * If the iSCSI Session for the iSCSI Initiator Node exists,
1672 * forcefully shutdown the iSCSI NEXUS.
1673 */
1674 iscsit_close_session(sess);
1675 }
1676
1677 static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg)
1678 {
1679 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1680
1681 return tpg->tpg_tiqn->tiqn_index;
1682 }
1683
1684 static void lio_set_default_node_attributes(struct se_node_acl *se_acl)
1685 {
1686 struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl,
1687 se_node_acl);
1688
1689 ISCSI_NODE_ATTRIB(acl)->nacl = acl;
1690 iscsit_set_default_node_attribues(acl);
1691 }
1692
1693 static void lio_release_cmd(struct se_cmd *se_cmd)
1694 {
1695 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1696
1697 iscsit_release_cmd(cmd);
1698 }
1699
1700 /* End functions for target_core_fabric_ops */
1701
1702 int iscsi_target_register_configfs(void)
1703 {
1704 struct target_fabric_configfs *fabric;
1705 int ret;
1706
1707 lio_target_fabric_configfs = NULL;
1708 fabric = target_fabric_configfs_init(THIS_MODULE, "iscsi");
1709 if (IS_ERR(fabric)) {
1710 pr_err("target_fabric_configfs_init() for"
1711 " LIO-Target failed!\n");
1712 return PTR_ERR(fabric);
1713 }
1714 /*
1715 * Setup the fabric API of function pointers used by target_core_mod..
1716 */
1717 fabric->tf_ops.get_fabric_name = &iscsi_get_fabric_name;
1718 fabric->tf_ops.get_fabric_proto_ident = &iscsi_get_fabric_proto_ident;
1719 fabric->tf_ops.tpg_get_wwn = &lio_tpg_get_endpoint_wwn;
1720 fabric->tf_ops.tpg_get_tag = &lio_tpg_get_tag;
1721 fabric->tf_ops.tpg_get_default_depth = &lio_tpg_get_default_depth;
1722 fabric->tf_ops.tpg_get_pr_transport_id = &iscsi_get_pr_transport_id;
1723 fabric->tf_ops.tpg_get_pr_transport_id_len =
1724 &iscsi_get_pr_transport_id_len;
1725 fabric->tf_ops.tpg_parse_pr_out_transport_id =
1726 &iscsi_parse_pr_out_transport_id;
1727 fabric->tf_ops.tpg_check_demo_mode = &lio_tpg_check_demo_mode;
1728 fabric->tf_ops.tpg_check_demo_mode_cache =
1729 &lio_tpg_check_demo_mode_cache;
1730 fabric->tf_ops.tpg_check_demo_mode_write_protect =
1731 &lio_tpg_check_demo_mode_write_protect;
1732 fabric->tf_ops.tpg_check_prod_mode_write_protect =
1733 &lio_tpg_check_prod_mode_write_protect;
1734 fabric->tf_ops.tpg_alloc_fabric_acl = &lio_tpg_alloc_fabric_acl;
1735 fabric->tf_ops.tpg_release_fabric_acl = &lio_tpg_release_fabric_acl;
1736 fabric->tf_ops.tpg_get_inst_index = &lio_tpg_get_inst_index;
1737 fabric->tf_ops.release_cmd = &lio_release_cmd;
1738 fabric->tf_ops.shutdown_session = &lio_tpg_shutdown_session;
1739 fabric->tf_ops.close_session = &lio_tpg_close_session;
1740 fabric->tf_ops.sess_get_index = &lio_sess_get_index;
1741 fabric->tf_ops.sess_get_initiator_sid = &lio_sess_get_initiator_sid;
1742 fabric->tf_ops.write_pending = &lio_write_pending;
1743 fabric->tf_ops.write_pending_status = &lio_write_pending_status;
1744 fabric->tf_ops.set_default_node_attributes =
1745 &lio_set_default_node_attributes;
1746 fabric->tf_ops.get_task_tag = &iscsi_get_task_tag;
1747 fabric->tf_ops.get_cmd_state = &iscsi_get_cmd_state;
1748 fabric->tf_ops.queue_data_in = &lio_queue_data_in;
1749 fabric->tf_ops.queue_status = &lio_queue_status;
1750 fabric->tf_ops.queue_tm_rsp = &lio_queue_tm_rsp;
1751 fabric->tf_ops.set_fabric_sense_len = &lio_set_fabric_sense_len;
1752 fabric->tf_ops.get_fabric_sense_len = &lio_get_fabric_sense_len;
1753 /*
1754 * Setup function pointers for generic logic in target_core_fabric_configfs.c
1755 */
1756 fabric->tf_ops.fabric_make_wwn = &lio_target_call_coreaddtiqn;
1757 fabric->tf_ops.fabric_drop_wwn = &lio_target_call_coredeltiqn;
1758 fabric->tf_ops.fabric_make_tpg = &lio_target_tiqn_addtpg;
1759 fabric->tf_ops.fabric_drop_tpg = &lio_target_tiqn_deltpg;
1760 fabric->tf_ops.fabric_post_link = NULL;
1761 fabric->tf_ops.fabric_pre_unlink = NULL;
1762 fabric->tf_ops.fabric_make_np = &lio_target_call_addnptotpg;
1763 fabric->tf_ops.fabric_drop_np = &lio_target_call_delnpfromtpg;
1764 fabric->tf_ops.fabric_make_nodeacl = &lio_target_make_nodeacl;
1765 fabric->tf_ops.fabric_drop_nodeacl = &lio_target_drop_nodeacl;
1766 /*
1767 * Setup default attribute lists for various fabric->tf_cit_tmpl
1768 * sturct config_item_type's
1769 */
1770 TF_CIT_TMPL(fabric)->tfc_discovery_cit.ct_attrs = lio_target_discovery_auth_attrs;
1771 TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = lio_target_wwn_attrs;
1772 TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = lio_target_tpg_attrs;
1773 TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = lio_target_tpg_attrib_attrs;
1774 TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = lio_target_tpg_param_attrs;
1775 TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = lio_target_portal_attrs;
1776 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = lio_target_initiator_attrs;
1777 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = lio_target_nacl_attrib_attrs;
1778 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = lio_target_nacl_auth_attrs;
1779 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = lio_target_nacl_param_attrs;
1780
1781 ret = target_fabric_configfs_register(fabric);
1782 if (ret < 0) {
1783 pr_err("target_fabric_configfs_register() for"
1784 " LIO-Target failed!\n");
1785 target_fabric_configfs_free(fabric);
1786 return ret;
1787 }
1788
1789 lio_target_fabric_configfs = fabric;
1790 pr_debug("LIO_TARGET[0] - Set fabric ->"
1791 " lio_target_fabric_configfs\n");
1792 return 0;
1793 }
1794
1795
1796 void iscsi_target_deregister_configfs(void)
1797 {
1798 if (!lio_target_fabric_configfs)
1799 return;
1800 /*
1801 * Shutdown discovery sessions and disable discovery TPG
1802 */
1803 if (iscsit_global->discovery_tpg)
1804 iscsit_tpg_disable_portal_group(iscsit_global->discovery_tpg, 1);
1805
1806 target_fabric_configfs_deregister(lio_target_fabric_configfs);
1807 lio_target_fabric_configfs = NULL;
1808 pr_debug("LIO_TARGET[0] - Cleared"
1809 " lio_target_fabric_configfs\n");
1810 }
Linux kernel - Deliverables
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