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net: qmi_wwan: add Olivetti Olicard 500
[linux/fpc-iii.git] / drivers / target / iscsi / iscsi_target_configfs.c
blobae03f3e5de1e47f8ce9bb43ae134361d8e9e325a
1 /*******************************************************************************
2 * This file contains the configfs implementation for iSCSI Target mode
3 * from the LIO-Target Project.
4 *
5 * (c) Copyright 2007-2013 Datera, Inc.
6 *
7 * Author: Nicholas A. Bellinger <nab@linux-iscsi.org>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 ****************************************************************************/
19
20 #include <linux/configfs.h>
21 #include <linux/ctype.h>
22 #include <linux/export.h>
23 #include <linux/inet.h>
24 #include <target/target_core_base.h>
25 #include <target/target_core_fabric.h>
26 #include <target/target_core_fabric_configfs.h>
27 #include <target/target_core_configfs.h>
28 #include <target/configfs_macros.h>
29 #include <target/iscsi/iscsi_transport.h>
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 u32 op;
81 int ret;
82
83 ret = kstrtou32(page, 0, &op);
84 if (ret)
85 return ret;
86 if ((op != 1) && (op != 0)) {
87 pr_err("Illegal value for tpg_enable: %u\n", op);
88 return -EINVAL;
89 }
90 np = tpg_np->tpg_np;
91 if (!np) {
92 pr_err("Unable to locate struct iscsi_np from"
93 " struct iscsi_tpg_np\n");
94 return -EINVAL;
95 }
96
97 tpg = tpg_np->tpg;
98 if (iscsit_get_tpg(tpg) < 0)
99 return -EINVAL;
100
101 if (op) {
102 /*
103 * Use existing np->np_sockaddr for SCTP network portal reference
104 */
105 tpg_np_sctp = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr,
106 np->np_ip, tpg_np, ISCSI_SCTP_TCP);
107 if (!tpg_np_sctp || IS_ERR(tpg_np_sctp))
108 goto out;
109 } else {
110 tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP);
111 if (!tpg_np_sctp)
112 goto out;
113
114 ret = iscsit_tpg_del_network_portal(tpg, tpg_np_sctp);
115 if (ret < 0)
116 goto out;
117 }
118
119 iscsit_put_tpg(tpg);
120 return count;
121 out:
122 iscsit_put_tpg(tpg);
123 return -EINVAL;
124 }
125
126 TF_NP_BASE_ATTR(lio_target, sctp, S_IRUGO | S_IWUSR);
127
128 static ssize_t lio_target_np_show_iser(
129 struct se_tpg_np *se_tpg_np,
130 char *page)
131 {
132 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np,
133 struct iscsi_tpg_np, se_tpg_np);
134 struct iscsi_tpg_np *tpg_np_iser;
135 ssize_t rb;
136
137 tpg_np_iser = iscsit_tpg_locate_child_np(tpg_np, ISCSI_INFINIBAND);
138 if (tpg_np_iser)
139 rb = sprintf(page, "1\n");
140 else
141 rb = sprintf(page, "0\n");
142
143 return rb;
144 }
145
146 static ssize_t lio_target_np_store_iser(
147 struct se_tpg_np *se_tpg_np,
148 const char *page,
149 size_t count)
150 {
151 struct iscsi_np *np;
152 struct iscsi_portal_group *tpg;
153 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np,
154 struct iscsi_tpg_np, se_tpg_np);
155 struct iscsi_tpg_np *tpg_np_iser = NULL;
156 char *endptr;
157 u32 op;
158 int rc = 0;
159
160 op = simple_strtoul(page, &endptr, 0);
161 if ((op != 1) && (op != 0)) {
162 pr_err("Illegal value for tpg_enable: %u\n", op);
163 return -EINVAL;
164 }
165 np = tpg_np->tpg_np;
166 if (!np) {
167 pr_err("Unable to locate struct iscsi_np from"
168 " struct iscsi_tpg_np\n");
169 return -EINVAL;
170 }
171
172 tpg = tpg_np->tpg;
173 if (iscsit_get_tpg(tpg) < 0)
174 return -EINVAL;
175
176 if (op) {
177 rc = request_module("ib_isert");
178 if (rc != 0) {
179 pr_warn("Unable to request_module for ib_isert\n");
180 rc = 0;
181 }
182
183 tpg_np_iser = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr,
184 np->np_ip, tpg_np, ISCSI_INFINIBAND);
185 if (IS_ERR(tpg_np_iser)) {
186 rc = PTR_ERR(tpg_np_iser);
187 goto out;
188 }
189 } else {
190 tpg_np_iser = iscsit_tpg_locate_child_np(tpg_np, ISCSI_INFINIBAND);
191 if (tpg_np_iser) {
192 rc = iscsit_tpg_del_network_portal(tpg, tpg_np_iser);
193 if (rc < 0)
194 goto out;
195 }
196 }
197
198 iscsit_put_tpg(tpg);
199 return count;
200 out:
201 iscsit_put_tpg(tpg);
202 return rc;
203 }
204
205 TF_NP_BASE_ATTR(lio_target, iser, S_IRUGO | S_IWUSR);
206
207 static struct configfs_attribute *lio_target_portal_attrs[] = {
208 &lio_target_np_sctp.attr,
209 &lio_target_np_iser.attr,
210 NULL,
211 };
212
213 /* Stop items for lio_target_portal_cit */
214
215 /* Start items for lio_target_np_cit */
216
217 #define MAX_PORTAL_LEN 256
218
219 static struct se_tpg_np *lio_target_call_addnptotpg(
220 struct se_portal_group *se_tpg,
221 struct config_group *group,
222 const char *name)
223 {
224 struct iscsi_portal_group *tpg;
225 struct iscsi_tpg_np *tpg_np;
226 char *str, *str2, *ip_str, *port_str;
227 struct __kernel_sockaddr_storage sockaddr;
228 struct sockaddr_in *sock_in;
229 struct sockaddr_in6 *sock_in6;
230 unsigned long port;
231 int ret;
232 char buf[MAX_PORTAL_LEN + 1];
233
234 if (strlen(name) > MAX_PORTAL_LEN) {
235 pr_err("strlen(name): %d exceeds MAX_PORTAL_LEN: %d\n",
236 (int)strlen(name), MAX_PORTAL_LEN);
237 return ERR_PTR(-EOVERFLOW);
238 }
239 memset(buf, 0, MAX_PORTAL_LEN + 1);
240 snprintf(buf, MAX_PORTAL_LEN + 1, "%s", name);
241
242 memset(&sockaddr, 0, sizeof(struct __kernel_sockaddr_storage));
243
244 str = strstr(buf, "[");
245 if (str) {
246 const char *end;
247
248 str2 = strstr(str, "]");
249 if (!str2) {
250 pr_err("Unable to locate trailing \"]\""
251 " in IPv6 iSCSI network portal address\n");
252 return ERR_PTR(-EINVAL);
253 }
254 str++; /* Skip over leading "[" */
255 *str2 = '\0'; /* Terminate the IPv6 address */
256 str2++; /* Skip over the "]" */
257 port_str = strstr(str2, ":");
258 if (!port_str) {
259 pr_err("Unable to locate \":port\""
260 " in IPv6 iSCSI network portal address\n");
261 return ERR_PTR(-EINVAL);
262 }
263 *port_str = '\0'; /* Terminate string for IP */
264 port_str++; /* Skip over ":" */
265
266 ret = kstrtoul(port_str, 0, &port);
267 if (ret < 0) {
268 pr_err("kstrtoul() failed for port_str: %d\n", ret);
269 return ERR_PTR(ret);
270 }
271 sock_in6 = (struct sockaddr_in6 *)&sockaddr;
272 sock_in6->sin6_family = AF_INET6;
273 sock_in6->sin6_port = htons((unsigned short)port);
274 ret = in6_pton(str, IPV6_ADDRESS_SPACE,
275 (void *)&sock_in6->sin6_addr.in6_u, -1, &end);
276 if (ret <= 0) {
277 pr_err("in6_pton returned: %d\n", ret);
278 return ERR_PTR(-EINVAL);
279 }
280 } else {
281 str = ip_str = &buf[0];
282 port_str = strstr(ip_str, ":");
283 if (!port_str) {
284 pr_err("Unable to locate \":port\""
285 " in IPv4 iSCSI network portal address\n");
286 return ERR_PTR(-EINVAL);
287 }
288 *port_str = '\0'; /* Terminate string for IP */
289 port_str++; /* Skip over ":" */
290
291 ret = kstrtoul(port_str, 0, &port);
292 if (ret < 0) {
293 pr_err("kstrtoul() failed for port_str: %d\n", ret);
294 return ERR_PTR(ret);
295 }
296 sock_in = (struct sockaddr_in *)&sockaddr;
297 sock_in->sin_family = AF_INET;
298 sock_in->sin_port = htons((unsigned short)port);
299 sock_in->sin_addr.s_addr = in_aton(ip_str);
300 }
301 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
302 ret = iscsit_get_tpg(tpg);
303 if (ret < 0)
304 return ERR_PTR(-EINVAL);
305
306 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s TPGT: %hu"
307 " PORTAL: %s\n",
308 config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item),
309 tpg->tpgt, name);
310 /*
311 * Assume ISCSI_TCP by default. Other network portals for other
312 * iSCSI fabrics:
313 *
314 * Traditional iSCSI over SCTP (initial support)
315 * iSER/TCP (TODO, hardware available)
316 * iSER/SCTP (TODO, software emulation with osc-iwarp)
317 * iSER/IB (TODO, hardware available)
318 *
319 * can be enabled with attributes under
320 * sys/kernel/config/iscsi/$IQN/$TPG/np/$IP:$PORT/
321 *
322 */
323 tpg_np = iscsit_tpg_add_network_portal(tpg, &sockaddr, str, NULL,
324 ISCSI_TCP);
325 if (IS_ERR(tpg_np)) {
326 iscsit_put_tpg(tpg);
327 return ERR_CAST(tpg_np);
328 }
329 pr_debug("LIO_Target_ConfigFS: addnptotpg done!\n");
330
331 iscsit_put_tpg(tpg);
332 return &tpg_np->se_tpg_np;
333 }
334
335 static void lio_target_call_delnpfromtpg(
336 struct se_tpg_np *se_tpg_np)
337 {
338 struct iscsi_portal_group *tpg;
339 struct iscsi_tpg_np *tpg_np;
340 struct se_portal_group *se_tpg;
341 int ret;
342
343 tpg_np = container_of(se_tpg_np, struct iscsi_tpg_np, se_tpg_np);
344 tpg = tpg_np->tpg;
345 ret = iscsit_get_tpg(tpg);
346 if (ret < 0)
347 return;
348
349 se_tpg = &tpg->tpg_se_tpg;
350 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s TPGT: %hu"
351 " PORTAL: %s:%hu\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item),
352 tpg->tpgt, tpg_np->tpg_np->np_ip, tpg_np->tpg_np->np_port);
353
354 ret = iscsit_tpg_del_network_portal(tpg, tpg_np);
355 if (ret < 0)
356 goto out;
357
358 pr_debug("LIO_Target_ConfigFS: delnpfromtpg done!\n");
359 out:
360 iscsit_put_tpg(tpg);
361 }
362
363 /* End items for lio_target_np_cit */
364
365 /* Start items for lio_target_nacl_attrib_cit */
366
367 #define DEF_NACL_ATTRIB(name) \
368 static ssize_t iscsi_nacl_attrib_show_##name( \
369 struct se_node_acl *se_nacl, \
370 char *page) \
371 { \
372 struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \
373 se_node_acl); \
374 \
375 return sprintf(page, "%u\n", nacl->node_attrib.name); \
376 } \
377 \
378 static ssize_t iscsi_nacl_attrib_store_##name( \
379 struct se_node_acl *se_nacl, \
380 const char *page, \
381 size_t count) \
382 { \
383 struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \
384 se_node_acl); \
385 u32 val; \
386 int ret; \
387 \
388 ret = kstrtou32(page, 0, &val); \
389 if (ret) \
390 return ret; \
391 ret = iscsit_na_##name(nacl, val); \
392 if (ret < 0) \
393 return ret; \
394 \
395 return count; \
396 }
397
398 #define NACL_ATTR(_name, _mode) TF_NACL_ATTRIB_ATTR(iscsi, _name, _mode);
399 /*
400 * Define iscsi_node_attrib_s_dataout_timeout
401 */
402 DEF_NACL_ATTRIB(dataout_timeout);
403 NACL_ATTR(dataout_timeout, S_IRUGO | S_IWUSR);
404 /*
405 * Define iscsi_node_attrib_s_dataout_timeout_retries
406 */
407 DEF_NACL_ATTRIB(dataout_timeout_retries);
408 NACL_ATTR(dataout_timeout_retries, S_IRUGO | S_IWUSR);
409 /*
410 * Define iscsi_node_attrib_s_default_erl
411 */
412 DEF_NACL_ATTRIB(default_erl);
413 NACL_ATTR(default_erl, S_IRUGO | S_IWUSR);
414 /*
415 * Define iscsi_node_attrib_s_nopin_timeout
416 */
417 DEF_NACL_ATTRIB(nopin_timeout);
418 NACL_ATTR(nopin_timeout, S_IRUGO | S_IWUSR);
419 /*
420 * Define iscsi_node_attrib_s_nopin_response_timeout
421 */
422 DEF_NACL_ATTRIB(nopin_response_timeout);
423 NACL_ATTR(nopin_response_timeout, S_IRUGO | S_IWUSR);
424 /*
425 * Define iscsi_node_attrib_s_random_datain_pdu_offsets
426 */
427 DEF_NACL_ATTRIB(random_datain_pdu_offsets);
428 NACL_ATTR(random_datain_pdu_offsets, S_IRUGO | S_IWUSR);
429 /*
430 * Define iscsi_node_attrib_s_random_datain_seq_offsets
431 */
432 DEF_NACL_ATTRIB(random_datain_seq_offsets);
433 NACL_ATTR(random_datain_seq_offsets, S_IRUGO | S_IWUSR);
434 /*
435 * Define iscsi_node_attrib_s_random_r2t_offsets
436 */
437 DEF_NACL_ATTRIB(random_r2t_offsets);
438 NACL_ATTR(random_r2t_offsets, S_IRUGO | S_IWUSR);
439
440 static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = {
441 &iscsi_nacl_attrib_dataout_timeout.attr,
442 &iscsi_nacl_attrib_dataout_timeout_retries.attr,
443 &iscsi_nacl_attrib_default_erl.attr,
444 &iscsi_nacl_attrib_nopin_timeout.attr,
445 &iscsi_nacl_attrib_nopin_response_timeout.attr,
446 &iscsi_nacl_attrib_random_datain_pdu_offsets.attr,
447 &iscsi_nacl_attrib_random_datain_seq_offsets.attr,
448 &iscsi_nacl_attrib_random_r2t_offsets.attr,
449 NULL,
450 };
451
452 /* End items for lio_target_nacl_attrib_cit */
453
454 /* Start items for lio_target_nacl_auth_cit */
455
456 #define __DEF_NACL_AUTH_STR(prefix, name, flags) \
457 static ssize_t __iscsi_##prefix##_show_##name( \
458 struct iscsi_node_acl *nacl, \
459 char *page) \
460 { \
461 struct iscsi_node_auth *auth = &nacl->node_auth; \
462 \
463 if (!capable(CAP_SYS_ADMIN)) \
464 return -EPERM; \
465 return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \
466 } \
467 \
468 static ssize_t __iscsi_##prefix##_store_##name( \
469 struct iscsi_node_acl *nacl, \
470 const char *page, \
471 size_t count) \
472 { \
473 struct iscsi_node_auth *auth = &nacl->node_auth; \
474 \
475 if (!capable(CAP_SYS_ADMIN)) \
476 return -EPERM; \
477 if (count >= sizeof(auth->name)) \
478 return -EINVAL; \
479 snprintf(auth->name, sizeof(auth->name), "%s", page); \
480 if (!strncmp("NULL", auth->name, 4)) \
481 auth->naf_flags &= ~flags; \
482 else \
483 auth->naf_flags |= flags; \
484 \
485 if ((auth->naf_flags & NAF_USERID_IN_SET) && \
486 (auth->naf_flags & NAF_PASSWORD_IN_SET)) \
487 auth->authenticate_target = 1; \
488 else \
489 auth->authenticate_target = 0; \
490 \
491 return count; \
492 }
493
494 #define __DEF_NACL_AUTH_INT(prefix, name) \
495 static ssize_t __iscsi_##prefix##_show_##name( \
496 struct iscsi_node_acl *nacl, \
497 char *page) \
498 { \
499 struct iscsi_node_auth *auth = &nacl->node_auth; \
500 \
501 if (!capable(CAP_SYS_ADMIN)) \
502 return -EPERM; \
503 \
504 return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \
505 }
506
507 #define DEF_NACL_AUTH_STR(name, flags) \
508 __DEF_NACL_AUTH_STR(nacl_auth, name, flags) \
509 static ssize_t iscsi_nacl_auth_show_##name( \
510 struct se_node_acl *nacl, \
511 char *page) \
512 { \
513 return __iscsi_nacl_auth_show_##name(container_of(nacl, \
514 struct iscsi_node_acl, se_node_acl), page); \
515 } \
516 static ssize_t iscsi_nacl_auth_store_##name( \
517 struct se_node_acl *nacl, \
518 const char *page, \
519 size_t count) \
520 { \
521 return __iscsi_nacl_auth_store_##name(container_of(nacl, \
522 struct iscsi_node_acl, se_node_acl), page, count); \
523 }
524
525 #define DEF_NACL_AUTH_INT(name) \
526 __DEF_NACL_AUTH_INT(nacl_auth, name) \
527 static ssize_t iscsi_nacl_auth_show_##name( \
528 struct se_node_acl *nacl, \
529 char *page) \
530 { \
531 return __iscsi_nacl_auth_show_##name(container_of(nacl, \
532 struct iscsi_node_acl, se_node_acl), page); \
533 }
534
535 #define AUTH_ATTR(_name, _mode) TF_NACL_AUTH_ATTR(iscsi, _name, _mode);
536 #define AUTH_ATTR_RO(_name) TF_NACL_AUTH_ATTR_RO(iscsi, _name);
537
538 /*
539 * One-way authentication userid
540 */
541 DEF_NACL_AUTH_STR(userid, NAF_USERID_SET);
542 AUTH_ATTR(userid, S_IRUGO | S_IWUSR);
543 /*
544 * One-way authentication password
545 */
546 DEF_NACL_AUTH_STR(password, NAF_PASSWORD_SET);
547 AUTH_ATTR(password, S_IRUGO | S_IWUSR);
548 /*
549 * Enforce mutual authentication
550 */
551 DEF_NACL_AUTH_INT(authenticate_target);
552 AUTH_ATTR_RO(authenticate_target);
553 /*
554 * Mutual authentication userid
555 */
556 DEF_NACL_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
557 AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR);
558 /*
559 * Mutual authentication password
560 */
561 DEF_NACL_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
562 AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR);
563
564 static struct configfs_attribute *lio_target_nacl_auth_attrs[] = {
565 &iscsi_nacl_auth_userid.attr,
566 &iscsi_nacl_auth_password.attr,
567 &iscsi_nacl_auth_authenticate_target.attr,
568 &iscsi_nacl_auth_userid_mutual.attr,
569 &iscsi_nacl_auth_password_mutual.attr,
570 NULL,
571 };
572
573 /* End items for lio_target_nacl_auth_cit */
574
575 /* Start items for lio_target_nacl_param_cit */
576
577 #define DEF_NACL_PARAM(name) \
578 static ssize_t iscsi_nacl_param_show_##name( \
579 struct se_node_acl *se_nacl, \
580 char *page) \
581 { \
582 struct iscsi_session *sess; \
583 struct se_session *se_sess; \
584 ssize_t rb; \
585 \
586 spin_lock_bh(&se_nacl->nacl_sess_lock); \
587 se_sess = se_nacl->nacl_sess; \
588 if (!se_sess) { \
589 rb = snprintf(page, PAGE_SIZE, \
590 "No Active iSCSI Session\n"); \
591 } else { \
592 sess = se_sess->fabric_sess_ptr; \
593 rb = snprintf(page, PAGE_SIZE, "%u\n", \
594 (u32)sess->sess_ops->name); \
595 } \
596 spin_unlock_bh(&se_nacl->nacl_sess_lock); \
597 \
598 return rb; \
599 }
600
601 #define NACL_PARAM_ATTR(_name) TF_NACL_PARAM_ATTR_RO(iscsi, _name);
602
603 DEF_NACL_PARAM(MaxConnections);
604 NACL_PARAM_ATTR(MaxConnections);
605
606 DEF_NACL_PARAM(InitialR2T);
607 NACL_PARAM_ATTR(InitialR2T);
608
609 DEF_NACL_PARAM(ImmediateData);
610 NACL_PARAM_ATTR(ImmediateData);
611
612 DEF_NACL_PARAM(MaxBurstLength);
613 NACL_PARAM_ATTR(MaxBurstLength);
614
615 DEF_NACL_PARAM(FirstBurstLength);
616 NACL_PARAM_ATTR(FirstBurstLength);
617
618 DEF_NACL_PARAM(DefaultTime2Wait);
619 NACL_PARAM_ATTR(DefaultTime2Wait);
620
621 DEF_NACL_PARAM(DefaultTime2Retain);
622 NACL_PARAM_ATTR(DefaultTime2Retain);
623
624 DEF_NACL_PARAM(MaxOutstandingR2T);
625 NACL_PARAM_ATTR(MaxOutstandingR2T);
626
627 DEF_NACL_PARAM(DataPDUInOrder);
628 NACL_PARAM_ATTR(DataPDUInOrder);
629
630 DEF_NACL_PARAM(DataSequenceInOrder);
631 NACL_PARAM_ATTR(DataSequenceInOrder);
632
633 DEF_NACL_PARAM(ErrorRecoveryLevel);
634 NACL_PARAM_ATTR(ErrorRecoveryLevel);
635
636 static struct configfs_attribute *lio_target_nacl_param_attrs[] = {
637 &iscsi_nacl_param_MaxConnections.attr,
638 &iscsi_nacl_param_InitialR2T.attr,
639 &iscsi_nacl_param_ImmediateData.attr,
640 &iscsi_nacl_param_MaxBurstLength.attr,
641 &iscsi_nacl_param_FirstBurstLength.attr,
642 &iscsi_nacl_param_DefaultTime2Wait.attr,
643 &iscsi_nacl_param_DefaultTime2Retain.attr,
644 &iscsi_nacl_param_MaxOutstandingR2T.attr,
645 &iscsi_nacl_param_DataPDUInOrder.attr,
646 &iscsi_nacl_param_DataSequenceInOrder.attr,
647 &iscsi_nacl_param_ErrorRecoveryLevel.attr,
648 NULL,
649 };
650
651 /* End items for lio_target_nacl_param_cit */
652
653 /* Start items for lio_target_acl_cit */
654
655 static ssize_t lio_target_nacl_show_info(
656 struct se_node_acl *se_nacl,
657 char *page)
658 {
659 struct iscsi_session *sess;
660 struct iscsi_conn *conn;
661 struct se_session *se_sess;
662 ssize_t rb = 0;
663
664 spin_lock_bh(&se_nacl->nacl_sess_lock);
665 se_sess = se_nacl->nacl_sess;
666 if (!se_sess) {
667 rb += sprintf(page+rb, "No active iSCSI Session for Initiator"
668 " Endpoint: %s\n", se_nacl->initiatorname);
669 } else {
670 sess = se_sess->fabric_sess_ptr;
671
672 if (sess->sess_ops->InitiatorName)
673 rb += sprintf(page+rb, "InitiatorName: %s\n",
674 sess->sess_ops->InitiatorName);
675 if (sess->sess_ops->InitiatorAlias)
676 rb += sprintf(page+rb, "InitiatorAlias: %s\n",
677 sess->sess_ops->InitiatorAlias);
678
679 rb += sprintf(page+rb, "LIO Session ID: %u "
680 "ISID: 0x%02x %02x %02x %02x %02x %02x "
681 "TSIH: %hu ", sess->sid,
682 sess->isid[0], sess->isid[1], sess->isid[2],
683 sess->isid[3], sess->isid[4], sess->isid[5],
684 sess->tsih);
685 rb += sprintf(page+rb, "SessionType: %s\n",
686 (sess->sess_ops->SessionType) ?
687 "Discovery" : "Normal");
688 rb += sprintf(page+rb, "Session State: ");
689 switch (sess->session_state) {
690 case TARG_SESS_STATE_FREE:
691 rb += sprintf(page+rb, "TARG_SESS_FREE\n");
692 break;
693 case TARG_SESS_STATE_ACTIVE:
694 rb += sprintf(page+rb, "TARG_SESS_STATE_ACTIVE\n");
695 break;
696 case TARG_SESS_STATE_LOGGED_IN:
697 rb += sprintf(page+rb, "TARG_SESS_STATE_LOGGED_IN\n");
698 break;
699 case TARG_SESS_STATE_FAILED:
700 rb += sprintf(page+rb, "TARG_SESS_STATE_FAILED\n");
701 break;
702 case TARG_SESS_STATE_IN_CONTINUE:
703 rb += sprintf(page+rb, "TARG_SESS_STATE_IN_CONTINUE\n");
704 break;
705 default:
706 rb += sprintf(page+rb, "ERROR: Unknown Session"
707 " State!\n");
708 break;
709 }
710
711 rb += sprintf(page+rb, "---------------------[iSCSI Session"
712 " Values]-----------------------\n");
713 rb += sprintf(page+rb, " CmdSN/WR : CmdSN/WC : ExpCmdSN"
714 " : MaxCmdSN : ITT : TTT\n");
715 rb += sprintf(page+rb, " 0x%08x 0x%08x 0x%08x 0x%08x"
716 " 0x%08x 0x%08x\n",
717 sess->cmdsn_window,
718 (sess->max_cmd_sn - sess->exp_cmd_sn) + 1,
719 sess->exp_cmd_sn, sess->max_cmd_sn,
720 sess->init_task_tag, sess->targ_xfer_tag);
721 rb += sprintf(page+rb, "----------------------[iSCSI"
722 " Connections]-------------------------\n");
723
724 spin_lock(&sess->conn_lock);
725 list_for_each_entry(conn, &sess->sess_conn_list, conn_list) {
726 rb += sprintf(page+rb, "CID: %hu Connection"
727 " State: ", conn->cid);
728 switch (conn->conn_state) {
729 case TARG_CONN_STATE_FREE:
730 rb += sprintf(page+rb,
731 "TARG_CONN_STATE_FREE\n");
732 break;
733 case TARG_CONN_STATE_XPT_UP:
734 rb += sprintf(page+rb,
735 "TARG_CONN_STATE_XPT_UP\n");
736 break;
737 case TARG_CONN_STATE_IN_LOGIN:
738 rb += sprintf(page+rb,
739 "TARG_CONN_STATE_IN_LOGIN\n");
740 break;
741 case TARG_CONN_STATE_LOGGED_IN:
742 rb += sprintf(page+rb,
743 "TARG_CONN_STATE_LOGGED_IN\n");
744 break;
745 case TARG_CONN_STATE_IN_LOGOUT:
746 rb += sprintf(page+rb,
747 "TARG_CONN_STATE_IN_LOGOUT\n");
748 break;
749 case TARG_CONN_STATE_LOGOUT_REQUESTED:
750 rb += sprintf(page+rb,
751 "TARG_CONN_STATE_LOGOUT_REQUESTED\n");
752 break;
753 case TARG_CONN_STATE_CLEANUP_WAIT:
754 rb += sprintf(page+rb,
755 "TARG_CONN_STATE_CLEANUP_WAIT\n");
756 break;
757 default:
758 rb += sprintf(page+rb,
759 "ERROR: Unknown Connection State!\n");
760 break;
761 }
762
763 rb += sprintf(page+rb, " Address %s %s", conn->login_ip,
764 (conn->network_transport == ISCSI_TCP) ?
765 "TCP" : "SCTP");
766 rb += sprintf(page+rb, " StatSN: 0x%08x\n",
767 conn->stat_sn);
768 }
769 spin_unlock(&sess->conn_lock);
770 }
771 spin_unlock_bh(&se_nacl->nacl_sess_lock);
772
773 return rb;
774 }
775
776 TF_NACL_BASE_ATTR_RO(lio_target, info);
777
778 static ssize_t lio_target_nacl_show_cmdsn_depth(
779 struct se_node_acl *se_nacl,
780 char *page)
781 {
782 return sprintf(page, "%u\n", se_nacl->queue_depth);
783 }
784
785 static ssize_t lio_target_nacl_store_cmdsn_depth(
786 struct se_node_acl *se_nacl,
787 const char *page,
788 size_t count)
789 {
790 struct se_portal_group *se_tpg = se_nacl->se_tpg;
791 struct iscsi_portal_group *tpg = container_of(se_tpg,
792 struct iscsi_portal_group, tpg_se_tpg);
793 struct config_item *acl_ci, *tpg_ci, *wwn_ci;
794 u32 cmdsn_depth = 0;
795 int ret;
796
797 ret = kstrtou32(page, 0, &cmdsn_depth);
798 if (ret)
799 return ret;
800 if (cmdsn_depth > TA_DEFAULT_CMDSN_DEPTH_MAX) {
801 pr_err("Passed cmdsn_depth: %u exceeds"
802 " TA_DEFAULT_CMDSN_DEPTH_MAX: %u\n", cmdsn_depth,
803 TA_DEFAULT_CMDSN_DEPTH_MAX);
804 return -EINVAL;
805 }
806 acl_ci = &se_nacl->acl_group.cg_item;
807 if (!acl_ci) {
808 pr_err("Unable to locatel acl_ci\n");
809 return -EINVAL;
810 }
811 tpg_ci = &acl_ci->ci_parent->ci_group->cg_item;
812 if (!tpg_ci) {
813 pr_err("Unable to locate tpg_ci\n");
814 return -EINVAL;
815 }
816 wwn_ci = &tpg_ci->ci_group->cg_item;
817 if (!wwn_ci) {
818 pr_err("Unable to locate config_item wwn_ci\n");
819 return -EINVAL;
820 }
821
822 if (iscsit_get_tpg(tpg) < 0)
823 return -EINVAL;
824 /*
825 * iscsit_tpg_set_initiator_node_queue_depth() assumes force=1
826 */
827 ret = iscsit_tpg_set_initiator_node_queue_depth(tpg,
828 config_item_name(acl_ci), cmdsn_depth, 1);
829
830 pr_debug("LIO_Target_ConfigFS: %s/%s Set CmdSN Window: %u for"
831 "InitiatorName: %s\n", config_item_name(wwn_ci),
832 config_item_name(tpg_ci), cmdsn_depth,
833 config_item_name(acl_ci));
834
835 iscsit_put_tpg(tpg);
836 return (!ret) ? count : (ssize_t)ret;
837 }
838
839 TF_NACL_BASE_ATTR(lio_target, cmdsn_depth, S_IRUGO | S_IWUSR);
840
841 static ssize_t lio_target_nacl_show_tag(
842 struct se_node_acl *se_nacl,
843 char *page)
844 {
845 return snprintf(page, PAGE_SIZE, "%s", se_nacl->acl_tag);
846 }
847
848 static ssize_t lio_target_nacl_store_tag(
849 struct se_node_acl *se_nacl,
850 const char *page,
851 size_t count)
852 {
853 int ret;
854
855 ret = core_tpg_set_initiator_node_tag(se_nacl->se_tpg, se_nacl, page);
856
857 if (ret < 0)
858 return ret;
859 return count;
860 }
861
862 TF_NACL_BASE_ATTR(lio_target, tag, S_IRUGO | S_IWUSR);
863
864 static struct configfs_attribute *lio_target_initiator_attrs[] = {
865 &lio_target_nacl_info.attr,
866 &lio_target_nacl_cmdsn_depth.attr,
867 &lio_target_nacl_tag.attr,
868 NULL,
869 };
870
871 static struct se_node_acl *lio_tpg_alloc_fabric_acl(
872 struct se_portal_group *se_tpg)
873 {
874 struct iscsi_node_acl *acl;
875
876 acl = kzalloc(sizeof(struct iscsi_node_acl), GFP_KERNEL);
877 if (!acl) {
878 pr_err("Unable to allocate memory for struct iscsi_node_acl\n");
879 return NULL;
880 }
881
882 return &acl->se_node_acl;
883 }
884
885 static struct se_node_acl *lio_target_make_nodeacl(
886 struct se_portal_group *se_tpg,
887 struct config_group *group,
888 const char *name)
889 {
890 struct config_group *stats_cg;
891 struct iscsi_node_acl *acl;
892 struct se_node_acl *se_nacl_new, *se_nacl;
893 struct iscsi_portal_group *tpg = container_of(se_tpg,
894 struct iscsi_portal_group, tpg_se_tpg);
895 u32 cmdsn_depth;
896
897 se_nacl_new = lio_tpg_alloc_fabric_acl(se_tpg);
898 if (!se_nacl_new)
899 return ERR_PTR(-ENOMEM);
900
901 cmdsn_depth = tpg->tpg_attrib.default_cmdsn_depth;
902 /*
903 * se_nacl_new may be released by core_tpg_add_initiator_node_acl()
904 * when converting a NdoeACL from demo mode -> explict
905 */
906 se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new,
907 name, cmdsn_depth);
908 if (IS_ERR(se_nacl))
909 return se_nacl;
910
911 acl = container_of(se_nacl, struct iscsi_node_acl, se_node_acl);
912 stats_cg = &se_nacl->acl_fabric_stat_group;
913
914 stats_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2,
915 GFP_KERNEL);
916 if (!stats_cg->default_groups) {
917 pr_err("Unable to allocate memory for"
918 " stats_cg->default_groups\n");
919 core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1);
920 kfree(acl);
921 return ERR_PTR(-ENOMEM);
922 }
923
924 stats_cg->default_groups[0] = &acl->node_stat_grps.iscsi_sess_stats_group;
925 stats_cg->default_groups[1] = NULL;
926 config_group_init_type_name(&acl->node_stat_grps.iscsi_sess_stats_group,
927 "iscsi_sess_stats", &iscsi_stat_sess_cit);
928
929 return se_nacl;
930 }
931
932 static void lio_target_drop_nodeacl(
933 struct se_node_acl *se_nacl)
934 {
935 struct se_portal_group *se_tpg = se_nacl->se_tpg;
936 struct iscsi_node_acl *acl = container_of(se_nacl,
937 struct iscsi_node_acl, se_node_acl);
938 struct config_item *df_item;
939 struct config_group *stats_cg;
940 int i;
941
942 stats_cg = &acl->se_node_acl.acl_fabric_stat_group;
943 for (i = 0; stats_cg->default_groups[i]; i++) {
944 df_item = &stats_cg->default_groups[i]->cg_item;
945 stats_cg->default_groups[i] = NULL;
946 config_item_put(df_item);
947 }
948 kfree(stats_cg->default_groups);
949
950 core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1);
951 kfree(acl);
952 }
953
954 /* End items for lio_target_acl_cit */
955
956 /* Start items for lio_target_tpg_attrib_cit */
957
958 #define DEF_TPG_ATTRIB(name) \
959 \
960 static ssize_t iscsi_tpg_attrib_show_##name( \
961 struct se_portal_group *se_tpg, \
962 char *page) \
963 { \
964 struct iscsi_portal_group *tpg = container_of(se_tpg, \
965 struct iscsi_portal_group, tpg_se_tpg); \
966 ssize_t rb; \
967 \
968 if (iscsit_get_tpg(tpg) < 0) \
969 return -EINVAL; \
970 \
971 rb = sprintf(page, "%u\n", tpg->tpg_attrib.name); \
972 iscsit_put_tpg(tpg); \
973 return rb; \
974 } \
975 \
976 static ssize_t iscsi_tpg_attrib_store_##name( \
977 struct se_portal_group *se_tpg, \
978 const char *page, \
979 size_t count) \
980 { \
981 struct iscsi_portal_group *tpg = container_of(se_tpg, \
982 struct iscsi_portal_group, tpg_se_tpg); \
983 u32 val; \
984 int ret; \
985 \
986 if (iscsit_get_tpg(tpg) < 0) \
987 return -EINVAL; \
988 \
989 ret = kstrtou32(page, 0, &val); \
990 if (ret) \
991 goto out; \
992 ret = iscsit_ta_##name(tpg, val); \
993 if (ret < 0) \
994 goto out; \
995 \
996 iscsit_put_tpg(tpg); \
997 return count; \
998 out: \
999 iscsit_put_tpg(tpg); \
1000 return ret; \
1001 }
1002
1003 #define TPG_ATTR(_name, _mode) TF_TPG_ATTRIB_ATTR(iscsi, _name, _mode);
1004
1005 /*
1006 * Define iscsi_tpg_attrib_s_authentication
1007 */
1008 DEF_TPG_ATTRIB(authentication);
1009 TPG_ATTR(authentication, S_IRUGO | S_IWUSR);
1010 /*
1011 * Define iscsi_tpg_attrib_s_login_timeout
1012 */
1013 DEF_TPG_ATTRIB(login_timeout);
1014 TPG_ATTR(login_timeout, S_IRUGO | S_IWUSR);
1015 /*
1016 * Define iscsi_tpg_attrib_s_netif_timeout
1017 */
1018 DEF_TPG_ATTRIB(netif_timeout);
1019 TPG_ATTR(netif_timeout, S_IRUGO | S_IWUSR);
1020 /*
1021 * Define iscsi_tpg_attrib_s_generate_node_acls
1022 */
1023 DEF_TPG_ATTRIB(generate_node_acls);
1024 TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR);
1025 /*
1026 * Define iscsi_tpg_attrib_s_default_cmdsn_depth
1027 */
1028 DEF_TPG_ATTRIB(default_cmdsn_depth);
1029 TPG_ATTR(default_cmdsn_depth, S_IRUGO | S_IWUSR);
1030 /*
1031 Define iscsi_tpg_attrib_s_cache_dynamic_acls
1032 */
1033 DEF_TPG_ATTRIB(cache_dynamic_acls);
1034 TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR);
1035 /*
1036 * Define iscsi_tpg_attrib_s_demo_mode_write_protect
1037 */
1038 DEF_TPG_ATTRIB(demo_mode_write_protect);
1039 TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR);
1040 /*
1041 * Define iscsi_tpg_attrib_s_prod_mode_write_protect
1042 */
1043 DEF_TPG_ATTRIB(prod_mode_write_protect);
1044 TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR);
1045 /*
1046 * Define iscsi_tpg_attrib_s_demo_mode_discovery,
1047 */
1048 DEF_TPG_ATTRIB(demo_mode_discovery);
1049 TPG_ATTR(demo_mode_discovery, S_IRUGO | S_IWUSR);
1050 /*
1051 * Define iscsi_tpg_attrib_s_default_erl
1052 */
1053 DEF_TPG_ATTRIB(default_erl);
1054 TPG_ATTR(default_erl, S_IRUGO | S_IWUSR);
1055 /*
1056 * Define iscsi_tpg_attrib_s_t10_pi
1057 */
1058 DEF_TPG_ATTRIB(t10_pi);
1059 TPG_ATTR(t10_pi, S_IRUGO | S_IWUSR);
1060
1061 static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
1062 &iscsi_tpg_attrib_authentication.attr,
1063 &iscsi_tpg_attrib_login_timeout.attr,
1064 &iscsi_tpg_attrib_netif_timeout.attr,
1065 &iscsi_tpg_attrib_generate_node_acls.attr,
1066 &iscsi_tpg_attrib_default_cmdsn_depth.attr,
1067 &iscsi_tpg_attrib_cache_dynamic_acls.attr,
1068 &iscsi_tpg_attrib_demo_mode_write_protect.attr,
1069 &iscsi_tpg_attrib_prod_mode_write_protect.attr,
1070 &iscsi_tpg_attrib_demo_mode_discovery.attr,
1071 &iscsi_tpg_attrib_default_erl.attr,
1072 &iscsi_tpg_attrib_t10_pi.attr,
1073 NULL,
1074 };
1075
1076 /* End items for lio_target_tpg_attrib_cit */
1077
1078 /* Start items for lio_target_tpg_auth_cit */
1079
1080 #define __DEF_TPG_AUTH_STR(prefix, name, flags) \
1081 static ssize_t __iscsi_##prefix##_show_##name( \
1082 struct se_portal_group *se_tpg, \
1083 char *page) \
1084 { \
1085 struct iscsi_portal_group *tpg = container_of(se_tpg, \
1086 struct iscsi_portal_group, tpg_se_tpg); \
1087 struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \
1088 \
1089 if (!capable(CAP_SYS_ADMIN)) \
1090 return -EPERM; \
1091 \
1092 return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \
1093 } \
1094 \
1095 static ssize_t __iscsi_##prefix##_store_##name( \
1096 struct se_portal_group *se_tpg, \
1097 const char *page, \
1098 size_t count) \
1099 { \
1100 struct iscsi_portal_group *tpg = container_of(se_tpg, \
1101 struct iscsi_portal_group, tpg_se_tpg); \
1102 struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \
1103 \
1104 if (!capable(CAP_SYS_ADMIN)) \
1105 return -EPERM; \
1106 \
1107 snprintf(auth->name, sizeof(auth->name), "%s", page); \
1108 if (!(strncmp("NULL", auth->name, 4))) \
1109 auth->naf_flags &= ~flags; \
1110 else \
1111 auth->naf_flags |= flags; \
1112 \
1113 if ((auth->naf_flags & NAF_USERID_IN_SET) && \
1114 (auth->naf_flags & NAF_PASSWORD_IN_SET)) \
1115 auth->authenticate_target = 1; \
1116 else \
1117 auth->authenticate_target = 0; \
1118 \
1119 return count; \
1120 }
1121
1122 #define __DEF_TPG_AUTH_INT(prefix, name) \
1123 static ssize_t __iscsi_##prefix##_show_##name( \
1124 struct se_portal_group *se_tpg, \
1125 char *page) \
1126 { \
1127 struct iscsi_portal_group *tpg = container_of(se_tpg, \
1128 struct iscsi_portal_group, tpg_se_tpg); \
1129 struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \
1130 \
1131 if (!capable(CAP_SYS_ADMIN)) \
1132 return -EPERM; \
1133 \
1134 return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \
1135 }
1136
1137 #define DEF_TPG_AUTH_STR(name, flags) \
1138 __DEF_TPG_AUTH_STR(tpg_auth, name, flags) \
1139 static ssize_t iscsi_tpg_auth_show_##name( \
1140 struct se_portal_group *se_tpg, \
1141 char *page) \
1142 { \
1143 return __iscsi_tpg_auth_show_##name(se_tpg, page); \
1144 } \
1145 \
1146 static ssize_t iscsi_tpg_auth_store_##name( \
1147 struct se_portal_group *se_tpg, \
1148 const char *page, \
1149 size_t count) \
1150 { \
1151 return __iscsi_tpg_auth_store_##name(se_tpg, page, count); \
1152 }
1153
1154 #define DEF_TPG_AUTH_INT(name) \
1155 __DEF_TPG_AUTH_INT(tpg_auth, name) \
1156 static ssize_t iscsi_tpg_auth_show_##name( \
1157 struct se_portal_group *se_tpg, \
1158 char *page) \
1159 { \
1160 return __iscsi_tpg_auth_show_##name(se_tpg, page); \
1161 }
1162
1163 #define TPG_AUTH_ATTR(_name, _mode) TF_TPG_AUTH_ATTR(iscsi, _name, _mode);
1164 #define TPG_AUTH_ATTR_RO(_name) TF_TPG_AUTH_ATTR_RO(iscsi, _name);
1165
1166 /*
1167 * * One-way authentication userid
1168 * */
1169 DEF_TPG_AUTH_STR(userid, NAF_USERID_SET);
1170 TPG_AUTH_ATTR(userid, S_IRUGO | S_IWUSR);
1171 /*
1172 * * One-way authentication password
1173 * */
1174 DEF_TPG_AUTH_STR(password, NAF_PASSWORD_SET);
1175 TPG_AUTH_ATTR(password, S_IRUGO | S_IWUSR);
1176 /*
1177 * * Enforce mutual authentication
1178 * */
1179 DEF_TPG_AUTH_INT(authenticate_target);
1180 TPG_AUTH_ATTR_RO(authenticate_target);
1181 /*
1182 * * Mutual authentication userid
1183 * */
1184 DEF_TPG_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
1185 TPG_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR);
1186 /*
1187 * * Mutual authentication password
1188 * */
1189 DEF_TPG_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
1190 TPG_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR);
1191
1192 static struct configfs_attribute *lio_target_tpg_auth_attrs[] = {
1193 &iscsi_tpg_auth_userid.attr,
1194 &iscsi_tpg_auth_password.attr,
1195 &iscsi_tpg_auth_authenticate_target.attr,
1196 &iscsi_tpg_auth_userid_mutual.attr,
1197 &iscsi_tpg_auth_password_mutual.attr,
1198 NULL,
1199 };
1200
1201 /* End items for lio_target_tpg_auth_cit */
1202
1203 /* Start items for lio_target_tpg_param_cit */
1204
1205 #define DEF_TPG_PARAM(name) \
1206 static ssize_t iscsi_tpg_param_show_##name( \
1207 struct se_portal_group *se_tpg, \
1208 char *page) \
1209 { \
1210 struct iscsi_portal_group *tpg = container_of(se_tpg, \
1211 struct iscsi_portal_group, tpg_se_tpg); \
1212 struct iscsi_param *param; \
1213 ssize_t rb; \
1214 \
1215 if (iscsit_get_tpg(tpg) < 0) \
1216 return -EINVAL; \
1217 \
1218 param = iscsi_find_param_from_key(__stringify(name), \
1219 tpg->param_list); \
1220 if (!param) { \
1221 iscsit_put_tpg(tpg); \
1222 return -EINVAL; \
1223 } \
1224 rb = snprintf(page, PAGE_SIZE, "%s\n", param->value); \
1225 \
1226 iscsit_put_tpg(tpg); \
1227 return rb; \
1228 } \
1229 static ssize_t iscsi_tpg_param_store_##name( \
1230 struct se_portal_group *se_tpg, \
1231 const char *page, \
1232 size_t count) \
1233 { \
1234 struct iscsi_portal_group *tpg = container_of(se_tpg, \
1235 struct iscsi_portal_group, tpg_se_tpg); \
1236 char *buf; \
1237 int ret, len; \
1238 \
1239 buf = kzalloc(PAGE_SIZE, GFP_KERNEL); \
1240 if (!buf) \
1241 return -ENOMEM; \
1242 len = snprintf(buf, PAGE_SIZE, "%s=%s", __stringify(name), page); \
1243 if (isspace(buf[len-1])) \
1244 buf[len-1] = '\0'; /* Kill newline */ \
1245 \
1246 if (iscsit_get_tpg(tpg) < 0) { \
1247 kfree(buf); \
1248 return -EINVAL; \
1249 } \
1250 \
1251 ret = iscsi_change_param_value(buf, tpg->param_list, 1); \
1252 if (ret < 0) \
1253 goto out; \
1254 \
1255 kfree(buf); \
1256 iscsit_put_tpg(tpg); \
1257 return count; \
1258 out: \
1259 kfree(buf); \
1260 iscsit_put_tpg(tpg); \
1261 return -EINVAL; \
1262 }
1263
1264 #define TPG_PARAM_ATTR(_name, _mode) TF_TPG_PARAM_ATTR(iscsi, _name, _mode);
1265
1266 DEF_TPG_PARAM(AuthMethod);
1267 TPG_PARAM_ATTR(AuthMethod, S_IRUGO | S_IWUSR);
1268
1269 DEF_TPG_PARAM(HeaderDigest);
1270 TPG_PARAM_ATTR(HeaderDigest, S_IRUGO | S_IWUSR);
1271
1272 DEF_TPG_PARAM(DataDigest);
1273 TPG_PARAM_ATTR(DataDigest, S_IRUGO | S_IWUSR);
1274
1275 DEF_TPG_PARAM(MaxConnections);
1276 TPG_PARAM_ATTR(MaxConnections, S_IRUGO | S_IWUSR);
1277
1278 DEF_TPG_PARAM(TargetAlias);
1279 TPG_PARAM_ATTR(TargetAlias, S_IRUGO | S_IWUSR);
1280
1281 DEF_TPG_PARAM(InitialR2T);
1282 TPG_PARAM_ATTR(InitialR2T, S_IRUGO | S_IWUSR);
1283
1284 DEF_TPG_PARAM(ImmediateData);
1285 TPG_PARAM_ATTR(ImmediateData, S_IRUGO | S_IWUSR);
1286
1287 DEF_TPG_PARAM(MaxRecvDataSegmentLength);
1288 TPG_PARAM_ATTR(MaxRecvDataSegmentLength, S_IRUGO | S_IWUSR);
1289
1290 DEF_TPG_PARAM(MaxXmitDataSegmentLength);
1291 TPG_PARAM_ATTR(MaxXmitDataSegmentLength, S_IRUGO | S_IWUSR);
1292
1293 DEF_TPG_PARAM(MaxBurstLength);
1294 TPG_PARAM_ATTR(MaxBurstLength, S_IRUGO | S_IWUSR);
1295
1296 DEF_TPG_PARAM(FirstBurstLength);
1297 TPG_PARAM_ATTR(FirstBurstLength, S_IRUGO | S_IWUSR);
1298
1299 DEF_TPG_PARAM(DefaultTime2Wait);
1300 TPG_PARAM_ATTR(DefaultTime2Wait, S_IRUGO | S_IWUSR);
1301
1302 DEF_TPG_PARAM(DefaultTime2Retain);
1303 TPG_PARAM_ATTR(DefaultTime2Retain, S_IRUGO | S_IWUSR);
1304
1305 DEF_TPG_PARAM(MaxOutstandingR2T);
1306 TPG_PARAM_ATTR(MaxOutstandingR2T, S_IRUGO | S_IWUSR);
1307
1308 DEF_TPG_PARAM(DataPDUInOrder);
1309 TPG_PARAM_ATTR(DataPDUInOrder, S_IRUGO | S_IWUSR);
1310
1311 DEF_TPG_PARAM(DataSequenceInOrder);
1312 TPG_PARAM_ATTR(DataSequenceInOrder, S_IRUGO | S_IWUSR);
1313
1314 DEF_TPG_PARAM(ErrorRecoveryLevel);
1315 TPG_PARAM_ATTR(ErrorRecoveryLevel, S_IRUGO | S_IWUSR);
1316
1317 DEF_TPG_PARAM(IFMarker);
1318 TPG_PARAM_ATTR(IFMarker, S_IRUGO | S_IWUSR);
1319
1320 DEF_TPG_PARAM(OFMarker);
1321 TPG_PARAM_ATTR(OFMarker, S_IRUGO | S_IWUSR);
1322
1323 DEF_TPG_PARAM(IFMarkInt);
1324 TPG_PARAM_ATTR(IFMarkInt, S_IRUGO | S_IWUSR);
1325
1326 DEF_TPG_PARAM(OFMarkInt);
1327 TPG_PARAM_ATTR(OFMarkInt, S_IRUGO | S_IWUSR);
1328
1329 static struct configfs_attribute *lio_target_tpg_param_attrs[] = {
1330 &iscsi_tpg_param_AuthMethod.attr,
1331 &iscsi_tpg_param_HeaderDigest.attr,
1332 &iscsi_tpg_param_DataDigest.attr,
1333 &iscsi_tpg_param_MaxConnections.attr,
1334 &iscsi_tpg_param_TargetAlias.attr,
1335 &iscsi_tpg_param_InitialR2T.attr,
1336 &iscsi_tpg_param_ImmediateData.attr,
1337 &iscsi_tpg_param_MaxRecvDataSegmentLength.attr,
1338 &iscsi_tpg_param_MaxXmitDataSegmentLength.attr,
1339 &iscsi_tpg_param_MaxBurstLength.attr,
1340 &iscsi_tpg_param_FirstBurstLength.attr,
1341 &iscsi_tpg_param_DefaultTime2Wait.attr,
1342 &iscsi_tpg_param_DefaultTime2Retain.attr,
1343 &iscsi_tpg_param_MaxOutstandingR2T.attr,
1344 &iscsi_tpg_param_DataPDUInOrder.attr,
1345 &iscsi_tpg_param_DataSequenceInOrder.attr,
1346 &iscsi_tpg_param_ErrorRecoveryLevel.attr,
1347 &iscsi_tpg_param_IFMarker.attr,
1348 &iscsi_tpg_param_OFMarker.attr,
1349 &iscsi_tpg_param_IFMarkInt.attr,
1350 &iscsi_tpg_param_OFMarkInt.attr,
1351 NULL,
1352 };
1353
1354 /* End items for lio_target_tpg_param_cit */
1355
1356 /* Start items for lio_target_tpg_cit */
1357
1358 static ssize_t lio_target_tpg_show_enable(
1359 struct se_portal_group *se_tpg,
1360 char *page)
1361 {
1362 struct iscsi_portal_group *tpg = container_of(se_tpg,
1363 struct iscsi_portal_group, tpg_se_tpg);
1364 ssize_t len;
1365
1366 spin_lock(&tpg->tpg_state_lock);
1367 len = sprintf(page, "%d\n",
1368 (tpg->tpg_state == TPG_STATE_ACTIVE) ? 1 : 0);
1369 spin_unlock(&tpg->tpg_state_lock);
1370
1371 return len;
1372 }
1373
1374 static ssize_t lio_target_tpg_store_enable(
1375 struct se_portal_group *se_tpg,
1376 const char *page,
1377 size_t count)
1378 {
1379 struct iscsi_portal_group *tpg = container_of(se_tpg,
1380 struct iscsi_portal_group, tpg_se_tpg);
1381 u32 op;
1382 int ret;
1383
1384 ret = kstrtou32(page, 0, &op);
1385 if (ret)
1386 return ret;
1387 if ((op != 1) && (op != 0)) {
1388 pr_err("Illegal value for tpg_enable: %u\n", op);
1389 return -EINVAL;
1390 }
1391
1392 ret = iscsit_get_tpg(tpg);
1393 if (ret < 0)
1394 return -EINVAL;
1395
1396 if (op) {
1397 ret = iscsit_tpg_enable_portal_group(tpg);
1398 if (ret < 0)
1399 goto out;
1400 } else {
1401 /*
1402 * iscsit_tpg_disable_portal_group() assumes force=1
1403 */
1404 ret = iscsit_tpg_disable_portal_group(tpg, 1);
1405 if (ret < 0)
1406 goto out;
1407 }
1408
1409 iscsit_put_tpg(tpg);
1410 return count;
1411 out:
1412 iscsit_put_tpg(tpg);
1413 return -EINVAL;
1414 }
1415
1416 TF_TPG_BASE_ATTR(lio_target, enable, S_IRUGO | S_IWUSR);
1417
1418 static struct configfs_attribute *lio_target_tpg_attrs[] = {
1419 &lio_target_tpg_enable.attr,
1420 NULL,
1421 };
1422
1423 /* End items for lio_target_tpg_cit */
1424
1425 /* Start items for lio_target_tiqn_cit */
1426
1427 static struct se_portal_group *lio_target_tiqn_addtpg(
1428 struct se_wwn *wwn,
1429 struct config_group *group,
1430 const char *name)
1431 {
1432 struct iscsi_portal_group *tpg;
1433 struct iscsi_tiqn *tiqn;
1434 char *tpgt_str;
1435 int ret;
1436 u16 tpgt;
1437
1438 tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
1439 /*
1440 * Only tpgt_# directory groups can be created below
1441 * target/iscsi/iqn.superturodiskarry/
1442 */
1443 tpgt_str = strstr(name, "tpgt_");
1444 if (!tpgt_str) {
1445 pr_err("Unable to locate \"tpgt_#\" directory"
1446 " group\n");
1447 return NULL;
1448 }
1449 tpgt_str += 5; /* Skip ahead of "tpgt_" */
1450 ret = kstrtou16(tpgt_str, 0, &tpgt);
1451 if (ret)
1452 return NULL;
1453
1454 tpg = iscsit_alloc_portal_group(tiqn, tpgt);
1455 if (!tpg)
1456 return NULL;
1457
1458 ret = core_tpg_register(
1459 &lio_target_fabric_configfs->tf_ops,
1460 wwn, &tpg->tpg_se_tpg, tpg,
1461 TRANSPORT_TPG_TYPE_NORMAL);
1462 if (ret < 0)
1463 return NULL;
1464
1465 ret = iscsit_tpg_add_portal_group(tiqn, tpg);
1466 if (ret != 0)
1467 goto out;
1468
1469 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn);
1470 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated TPG: %s\n",
1471 name);
1472 return &tpg->tpg_se_tpg;
1473 out:
1474 core_tpg_deregister(&tpg->tpg_se_tpg);
1475 kfree(tpg);
1476 return NULL;
1477 }
1478
1479 static void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg)
1480 {
1481 struct iscsi_portal_group *tpg;
1482 struct iscsi_tiqn *tiqn;
1483
1484 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
1485 tiqn = tpg->tpg_tiqn;
1486 /*
1487 * iscsit_tpg_del_portal_group() assumes force=1
1488 */
1489 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> Releasing TPG\n");
1490 iscsit_tpg_del_portal_group(tiqn, tpg, 1);
1491 }
1492
1493 /* End items for lio_target_tiqn_cit */
1494
1495 /* Start LIO-Target TIQN struct contig_item lio_target_cit */
1496
1497 static ssize_t lio_target_wwn_show_attr_lio_version(
1498 struct target_fabric_configfs *tf,
1499 char *page)
1500 {
1501 return sprintf(page, "Datera Inc. iSCSI Target "ISCSIT_VERSION"\n");
1502 }
1503
1504 TF_WWN_ATTR_RO(lio_target, lio_version);
1505
1506 static struct configfs_attribute *lio_target_wwn_attrs[] = {
1507 &lio_target_wwn_lio_version.attr,
1508 NULL,
1509 };
1510
1511 static struct se_wwn *lio_target_call_coreaddtiqn(
1512 struct target_fabric_configfs *tf,
1513 struct config_group *group,
1514 const char *name)
1515 {
1516 struct config_group *stats_cg;
1517 struct iscsi_tiqn *tiqn;
1518
1519 tiqn = iscsit_add_tiqn((unsigned char *)name);
1520 if (IS_ERR(tiqn))
1521 return ERR_CAST(tiqn);
1522 /*
1523 * Setup struct iscsi_wwn_stat_grps for se_wwn->fabric_stat_group.
1524 */
1525 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group;
1526
1527 stats_cg->default_groups = kmalloc(sizeof(struct config_group *) * 6,
1528 GFP_KERNEL);
1529 if (!stats_cg->default_groups) {
1530 pr_err("Unable to allocate memory for"
1531 " stats_cg->default_groups\n");
1532 iscsit_del_tiqn(tiqn);
1533 return ERR_PTR(-ENOMEM);
1534 }
1535
1536 stats_cg->default_groups[0] = &tiqn->tiqn_stat_grps.iscsi_instance_group;
1537 stats_cg->default_groups[1] = &tiqn->tiqn_stat_grps.iscsi_sess_err_group;
1538 stats_cg->default_groups[2] = &tiqn->tiqn_stat_grps.iscsi_tgt_attr_group;
1539 stats_cg->default_groups[3] = &tiqn->tiqn_stat_grps.iscsi_login_stats_group;
1540 stats_cg->default_groups[4] = &tiqn->tiqn_stat_grps.iscsi_logout_stats_group;
1541 stats_cg->default_groups[5] = NULL;
1542 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_instance_group,
1543 "iscsi_instance", &iscsi_stat_instance_cit);
1544 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_sess_err_group,
1545 "iscsi_sess_err", &iscsi_stat_sess_err_cit);
1546 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_tgt_attr_group,
1547 "iscsi_tgt_attr", &iscsi_stat_tgt_attr_cit);
1548 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_login_stats_group,
1549 "iscsi_login_stats", &iscsi_stat_login_cit);
1550 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_logout_stats_group,
1551 "iscsi_logout_stats", &iscsi_stat_logout_cit);
1552
1553 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn);
1554 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated Node:"
1555 " %s\n", name);
1556 return &tiqn->tiqn_wwn;
1557 }
1558
1559 static void lio_target_call_coredeltiqn(
1560 struct se_wwn *wwn)
1561 {
1562 struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
1563 struct config_item *df_item;
1564 struct config_group *stats_cg;
1565 int i;
1566
1567 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group;
1568 for (i = 0; stats_cg->default_groups[i]; i++) {
1569 df_item = &stats_cg->default_groups[i]->cg_item;
1570 stats_cg->default_groups[i] = NULL;
1571 config_item_put(df_item);
1572 }
1573 kfree(stats_cg->default_groups);
1574
1575 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s\n",
1576 tiqn->tiqn);
1577 iscsit_del_tiqn(tiqn);
1578 }
1579
1580 /* End LIO-Target TIQN struct contig_lio_target_cit */
1581
1582 /* Start lio_target_discovery_auth_cit */
1583
1584 #define DEF_DISC_AUTH_STR(name, flags) \
1585 __DEF_NACL_AUTH_STR(disc, name, flags) \
1586 static ssize_t iscsi_disc_show_##name( \
1587 struct target_fabric_configfs *tf, \
1588 char *page) \
1589 { \
1590 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \
1591 page); \
1592 } \
1593 static ssize_t iscsi_disc_store_##name( \
1594 struct target_fabric_configfs *tf, \
1595 const char *page, \
1596 size_t count) \
1597 { \
1598 return __iscsi_disc_store_##name(&iscsit_global->discovery_acl, \
1599 page, count); \
1600 }
1601
1602 #define DEF_DISC_AUTH_INT(name) \
1603 __DEF_NACL_AUTH_INT(disc, name) \
1604 static ssize_t iscsi_disc_show_##name( \
1605 struct target_fabric_configfs *tf, \
1606 char *page) \
1607 { \
1608 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \
1609 page); \
1610 }
1611
1612 #define DISC_AUTH_ATTR(_name, _mode) TF_DISC_ATTR(iscsi, _name, _mode)
1613 #define DISC_AUTH_ATTR_RO(_name) TF_DISC_ATTR_RO(iscsi, _name)
1614
1615 /*
1616 * One-way authentication userid
1617 */
1618 DEF_DISC_AUTH_STR(userid, NAF_USERID_SET);
1619 DISC_AUTH_ATTR(userid, S_IRUGO | S_IWUSR);
1620 /*
1621 * One-way authentication password
1622 */
1623 DEF_DISC_AUTH_STR(password, NAF_PASSWORD_SET);
1624 DISC_AUTH_ATTR(password, S_IRUGO | S_IWUSR);
1625 /*
1626 * Enforce mutual authentication
1627 */
1628 DEF_DISC_AUTH_INT(authenticate_target);
1629 DISC_AUTH_ATTR_RO(authenticate_target);
1630 /*
1631 * Mutual authentication userid
1632 */
1633 DEF_DISC_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
1634 DISC_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR);
1635 /*
1636 * Mutual authentication password
1637 */
1638 DEF_DISC_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
1639 DISC_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR);
1640
1641 /*
1642 * enforce_discovery_auth
1643 */
1644 static ssize_t iscsi_disc_show_enforce_discovery_auth(
1645 struct target_fabric_configfs *tf,
1646 char *page)
1647 {
1648 struct iscsi_node_auth *discovery_auth = &iscsit_global->discovery_acl.node_auth;
1649
1650 return sprintf(page, "%d\n", discovery_auth->enforce_discovery_auth);
1651 }
1652
1653 static ssize_t iscsi_disc_store_enforce_discovery_auth(
1654 struct target_fabric_configfs *tf,
1655 const char *page,
1656 size_t count)
1657 {
1658 struct iscsi_param *param;
1659 struct iscsi_portal_group *discovery_tpg = iscsit_global->discovery_tpg;
1660 u32 op;
1661 int err;
1662
1663 err = kstrtou32(page, 0, &op);
1664 if (err)
1665 return -EINVAL;
1666 if ((op != 1) && (op != 0)) {
1667 pr_err("Illegal value for enforce_discovery_auth:"
1668 " %u\n", op);
1669 return -EINVAL;
1670 }
1671
1672 if (!discovery_tpg) {
1673 pr_err("iscsit_global->discovery_tpg is NULL\n");
1674 return -EINVAL;
1675 }
1676
1677 param = iscsi_find_param_from_key(AUTHMETHOD,
1678 discovery_tpg->param_list);
1679 if (!param)
1680 return -EINVAL;
1681
1682 if (op) {
1683 /*
1684 * Reset the AuthMethod key to CHAP.
1685 */
1686 if (iscsi_update_param_value(param, CHAP) < 0)
1687 return -EINVAL;
1688
1689 discovery_tpg->tpg_attrib.authentication = 1;
1690 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 1;
1691 pr_debug("LIO-CORE[0] Successfully enabled"
1692 " authentication enforcement for iSCSI"
1693 " Discovery TPG\n");
1694 } else {
1695 /*
1696 * Reset the AuthMethod key to CHAP,None
1697 */
1698 if (iscsi_update_param_value(param, "CHAP,None") < 0)
1699 return -EINVAL;
1700
1701 discovery_tpg->tpg_attrib.authentication = 0;
1702 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 0;
1703 pr_debug("LIO-CORE[0] Successfully disabled"
1704 " authentication enforcement for iSCSI"
1705 " Discovery TPG\n");
1706 }
1707
1708 return count;
1709 }
1710
1711 DISC_AUTH_ATTR(enforce_discovery_auth, S_IRUGO | S_IWUSR);
1712
1713 static struct configfs_attribute *lio_target_discovery_auth_attrs[] = {
1714 &iscsi_disc_userid.attr,
1715 &iscsi_disc_password.attr,
1716 &iscsi_disc_authenticate_target.attr,
1717 &iscsi_disc_userid_mutual.attr,
1718 &iscsi_disc_password_mutual.attr,
1719 &iscsi_disc_enforce_discovery_auth.attr,
1720 NULL,
1721 };
1722
1723 /* End lio_target_discovery_auth_cit */
1724
1725 /* Start functions for target_core_fabric_ops */
1726
1727 static char *iscsi_get_fabric_name(void)
1728 {
1729 return "iSCSI";
1730 }
1731
1732 static u32 iscsi_get_task_tag(struct se_cmd *se_cmd)
1733 {
1734 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1735
1736 /* only used for printks or comparism with ->ref_task_tag */
1737 return (__force u32)cmd->init_task_tag;
1738 }
1739
1740 static int iscsi_get_cmd_state(struct se_cmd *se_cmd)
1741 {
1742 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1743
1744 return cmd->i_state;
1745 }
1746
1747 static u32 lio_sess_get_index(struct se_session *se_sess)
1748 {
1749 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1750
1751 return sess->session_index;
1752 }
1753
1754 static u32 lio_sess_get_initiator_sid(
1755 struct se_session *se_sess,
1756 unsigned char *buf,
1757 u32 size)
1758 {
1759 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1760 /*
1761 * iSCSI Initiator Session Identifier from RFC-3720.
1762 */
1763 return snprintf(buf, size, "%02x%02x%02x%02x%02x%02x",
1764 sess->isid[0], sess->isid[1], sess->isid[2],
1765 sess->isid[3], sess->isid[4], sess->isid[5]);
1766 }
1767
1768 static int lio_queue_data_in(struct se_cmd *se_cmd)
1769 {
1770 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1771
1772 cmd->i_state = ISTATE_SEND_DATAIN;
1773 cmd->conn->conn_transport->iscsit_queue_data_in(cmd->conn, cmd);
1774
1775 return 0;
1776 }
1777
1778 static int lio_write_pending(struct se_cmd *se_cmd)
1779 {
1780 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1781 struct iscsi_conn *conn = cmd->conn;
1782
1783 if (!cmd->immediate_data && !cmd->unsolicited_data)
1784 return conn->conn_transport->iscsit_get_dataout(conn, cmd, false);
1785
1786 return 0;
1787 }
1788
1789 static int lio_write_pending_status(struct se_cmd *se_cmd)
1790 {
1791 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1792 int ret;
1793
1794 spin_lock_bh(&cmd->istate_lock);
1795 ret = !(cmd->cmd_flags & ICF_GOT_LAST_DATAOUT);
1796 spin_unlock_bh(&cmd->istate_lock);
1797
1798 return ret;
1799 }
1800
1801 static int lio_queue_status(struct se_cmd *se_cmd)
1802 {
1803 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1804
1805 cmd->i_state = ISTATE_SEND_STATUS;
1806
1807 if (cmd->se_cmd.scsi_status || cmd->sense_reason) {
1808 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
1809 return 0;
1810 }
1811 cmd->conn->conn_transport->iscsit_queue_status(cmd->conn, cmd);
1812
1813 return 0;
1814 }
1815
1816 static void lio_queue_tm_rsp(struct se_cmd *se_cmd)
1817 {
1818 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1819
1820 cmd->i_state = ISTATE_SEND_TASKMGTRSP;
1821 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
1822 }
1823
1824 static void lio_aborted_task(struct se_cmd *se_cmd)
1825 {
1826 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1827
1828 cmd->conn->conn_transport->iscsit_aborted_task(cmd->conn, cmd);
1829 }
1830
1831 static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg)
1832 {
1833 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1834
1835 return &tpg->tpg_tiqn->tiqn[0];
1836 }
1837
1838 static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg)
1839 {
1840 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1841
1842 return tpg->tpgt;
1843 }
1844
1845 static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg)
1846 {
1847 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1848
1849 return tpg->tpg_attrib.default_cmdsn_depth;
1850 }
1851
1852 static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg)
1853 {
1854 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1855
1856 return tpg->tpg_attrib.generate_node_acls;
1857 }
1858
1859 static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg)
1860 {
1861 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1862
1863 return tpg->tpg_attrib.cache_dynamic_acls;
1864 }
1865
1866 static int lio_tpg_check_demo_mode_write_protect(
1867 struct se_portal_group *se_tpg)
1868 {
1869 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1870
1871 return tpg->tpg_attrib.demo_mode_write_protect;
1872 }
1873
1874 static int lio_tpg_check_prod_mode_write_protect(
1875 struct se_portal_group *se_tpg)
1876 {
1877 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1878
1879 return tpg->tpg_attrib.prod_mode_write_protect;
1880 }
1881
1882 static void lio_tpg_release_fabric_acl(
1883 struct se_portal_group *se_tpg,
1884 struct se_node_acl *se_acl)
1885 {
1886 struct iscsi_node_acl *acl = container_of(se_acl,
1887 struct iscsi_node_acl, se_node_acl);
1888 kfree(acl);
1889 }
1890
1891 /*
1892 * Called with spin_lock_bh(struct se_portal_group->session_lock) held..
1893 *
1894 * Also, this function calls iscsit_inc_session_usage_count() on the
1895 * struct iscsi_session in question.
1896 */
1897 static int lio_tpg_shutdown_session(struct se_session *se_sess)
1898 {
1899 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1900
1901 spin_lock(&sess->conn_lock);
1902 if (atomic_read(&sess->session_fall_back_to_erl0) ||
1903 atomic_read(&sess->session_logout) ||
1904 (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) {
1905 spin_unlock(&sess->conn_lock);
1906 return 0;
1907 }
1908 atomic_set(&sess->session_reinstatement, 1);
1909 spin_unlock(&sess->conn_lock);
1910
1911 iscsit_stop_time2retain_timer(sess);
1912 iscsit_stop_session(sess, 1, 1);
1913
1914 return 1;
1915 }
1916
1917 /*
1918 * Calls iscsit_dec_session_usage_count() as inverse of
1919 * lio_tpg_shutdown_session()
1920 */
1921 static void lio_tpg_close_session(struct se_session *se_sess)
1922 {
1923 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1924 /*
1925 * If the iSCSI Session for the iSCSI Initiator Node exists,
1926 * forcefully shutdown the iSCSI NEXUS.
1927 */
1928 iscsit_close_session(sess);
1929 }
1930
1931 static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg)
1932 {
1933 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1934
1935 return tpg->tpg_tiqn->tiqn_index;
1936 }
1937
1938 static void lio_set_default_node_attributes(struct se_node_acl *se_acl)
1939 {
1940 struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl,
1941 se_node_acl);
1942 struct se_portal_group *se_tpg = se_acl->se_tpg;
1943 struct iscsi_portal_group *tpg = container_of(se_tpg,
1944 struct iscsi_portal_group, tpg_se_tpg);
1945
1946 acl->node_attrib.nacl = acl;
1947 iscsit_set_default_node_attribues(acl, tpg);
1948 }
1949
1950 static int lio_check_stop_free(struct se_cmd *se_cmd)
1951 {
1952 return target_put_sess_cmd(se_cmd->se_sess, se_cmd);
1953 }
1954
1955 static void lio_release_cmd(struct se_cmd *se_cmd)
1956 {
1957 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1958
1959 pr_debug("Entering lio_release_cmd for se_cmd: %p\n", se_cmd);
1960 iscsit_release_cmd(cmd);
1961 }
1962
1963 /* End functions for target_core_fabric_ops */
1964
1965 int iscsi_target_register_configfs(void)
1966 {
1967 struct target_fabric_configfs *fabric;
1968 int ret;
1969
1970 lio_target_fabric_configfs = NULL;
1971 fabric = target_fabric_configfs_init(THIS_MODULE, "iscsi");
1972 if (IS_ERR(fabric)) {
1973 pr_err("target_fabric_configfs_init() for"
1974 " LIO-Target failed!\n");
1975 return PTR_ERR(fabric);
1976 }
1977 /*
1978 * Setup the fabric API of function pointers used by target_core_mod..
1979 */
1980 fabric->tf_ops.get_fabric_name = &iscsi_get_fabric_name;
1981 fabric->tf_ops.get_fabric_proto_ident = &iscsi_get_fabric_proto_ident;
1982 fabric->tf_ops.tpg_get_wwn = &lio_tpg_get_endpoint_wwn;
1983 fabric->tf_ops.tpg_get_tag = &lio_tpg_get_tag;
1984 fabric->tf_ops.tpg_get_default_depth = &lio_tpg_get_default_depth;
1985 fabric->tf_ops.tpg_get_pr_transport_id = &iscsi_get_pr_transport_id;
1986 fabric->tf_ops.tpg_get_pr_transport_id_len =
1987 &iscsi_get_pr_transport_id_len;
1988 fabric->tf_ops.tpg_parse_pr_out_transport_id =
1989 &iscsi_parse_pr_out_transport_id;
1990 fabric->tf_ops.tpg_check_demo_mode = &lio_tpg_check_demo_mode;
1991 fabric->tf_ops.tpg_check_demo_mode_cache =
1992 &lio_tpg_check_demo_mode_cache;
1993 fabric->tf_ops.tpg_check_demo_mode_write_protect =
1994 &lio_tpg_check_demo_mode_write_protect;
1995 fabric->tf_ops.tpg_check_prod_mode_write_protect =
1996 &lio_tpg_check_prod_mode_write_protect;
1997 fabric->tf_ops.tpg_alloc_fabric_acl = &lio_tpg_alloc_fabric_acl;
1998 fabric->tf_ops.tpg_release_fabric_acl = &lio_tpg_release_fabric_acl;
1999 fabric->tf_ops.tpg_get_inst_index = &lio_tpg_get_inst_index;
2000 fabric->tf_ops.check_stop_free = &lio_check_stop_free,
2001 fabric->tf_ops.release_cmd = &lio_release_cmd;
2002 fabric->tf_ops.shutdown_session = &lio_tpg_shutdown_session;
2003 fabric->tf_ops.close_session = &lio_tpg_close_session;
2004 fabric->tf_ops.sess_get_index = &lio_sess_get_index;
2005 fabric->tf_ops.sess_get_initiator_sid = &lio_sess_get_initiator_sid;
2006 fabric->tf_ops.write_pending = &lio_write_pending;
2007 fabric->tf_ops.write_pending_status = &lio_write_pending_status;
2008 fabric->tf_ops.set_default_node_attributes =
2009 &lio_set_default_node_attributes;
2010 fabric->tf_ops.get_task_tag = &iscsi_get_task_tag;
2011 fabric->tf_ops.get_cmd_state = &iscsi_get_cmd_state;
2012 fabric->tf_ops.queue_data_in = &lio_queue_data_in;
2013 fabric->tf_ops.queue_status = &lio_queue_status;
2014 fabric->tf_ops.queue_tm_rsp = &lio_queue_tm_rsp;
2015 fabric->tf_ops.aborted_task = &lio_aborted_task;
2016 /*
2017 * Setup function pointers for generic logic in target_core_fabric_configfs.c
2018 */
2019 fabric->tf_ops.fabric_make_wwn = &lio_target_call_coreaddtiqn;
2020 fabric->tf_ops.fabric_drop_wwn = &lio_target_call_coredeltiqn;
2021 fabric->tf_ops.fabric_make_tpg = &lio_target_tiqn_addtpg;
2022 fabric->tf_ops.fabric_drop_tpg = &lio_target_tiqn_deltpg;
2023 fabric->tf_ops.fabric_post_link = NULL;
2024 fabric->tf_ops.fabric_pre_unlink = NULL;
2025 fabric->tf_ops.fabric_make_np = &lio_target_call_addnptotpg;
2026 fabric->tf_ops.fabric_drop_np = &lio_target_call_delnpfromtpg;
2027 fabric->tf_ops.fabric_make_nodeacl = &lio_target_make_nodeacl;
2028 fabric->tf_ops.fabric_drop_nodeacl = &lio_target_drop_nodeacl;
2029 /*
2030 * Setup default attribute lists for various fabric->tf_cit_tmpl
2031 * sturct config_item_type's
2032 */
2033 fabric->tf_cit_tmpl.tfc_discovery_cit.ct_attrs = lio_target_discovery_auth_attrs;
2034 fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = lio_target_wwn_attrs;
2035 fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = lio_target_tpg_attrs;
2036 fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs = lio_target_tpg_attrib_attrs;
2037 fabric->tf_cit_tmpl.tfc_tpg_auth_cit.ct_attrs = lio_target_tpg_auth_attrs;
2038 fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = lio_target_tpg_param_attrs;
2039 fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = lio_target_portal_attrs;
2040 fabric->tf_cit_tmpl.tfc_tpg_nacl_base_cit.ct_attrs = lio_target_initiator_attrs;
2041 fabric->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit.ct_attrs = lio_target_nacl_attrib_attrs;
2042 fabric->tf_cit_tmpl.tfc_tpg_nacl_auth_cit.ct_attrs = lio_target_nacl_auth_attrs;
2043 fabric->tf_cit_tmpl.tfc_tpg_nacl_param_cit.ct_attrs = lio_target_nacl_param_attrs;
2044
2045 ret = target_fabric_configfs_register(fabric);
2046 if (ret < 0) {
2047 pr_err("target_fabric_configfs_register() for"
2048 " LIO-Target failed!\n");
2049 target_fabric_configfs_free(fabric);
2050 return ret;
2051 }
2052
2053 lio_target_fabric_configfs = fabric;
2054 pr_debug("LIO_TARGET[0] - Set fabric ->"
2055 " lio_target_fabric_configfs\n");
2056 return 0;
2057 }
2058
2059
2060 void iscsi_target_deregister_configfs(void)
2061 {
2062 if (!lio_target_fabric_configfs)
2063 return;
2064 /*
2065 * Shutdown discovery sessions and disable discovery TPG
2066 */
2067 if (iscsit_global->discovery_tpg)
2068 iscsit_tpg_disable_portal_group(iscsit_global->discovery_tpg, 1);
2069
2070 target_fabric_configfs_deregister(lio_target_fabric_configfs);
2071 lio_target_fabric_configfs = NULL;
2072 pr_debug("LIO_TARGET[0] - Cleared"
2073 " lio_target_fabric_configfs\n");
2074 }
Linux with added FPC-III support