projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
target: target_core_configfs.h is not needed in fabric drivers
[deliverable/linux.git] / drivers / target / iscsi / iscsi_target_configfs.c
CommitLineData
e48354ce
NB		 1/*******************************************************************************
2 * This file contains the configfs implementation for iSCSI Target mode
3 * from the LIO-Target Project.
4 *
4c76251e 5 * (c) Copyright 2007-2013 Datera, Inc.
e48354ce
NB		 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>
ad7babd2 21#include <linux/ctype.h>
c53181af 22#include <linux/export.h>
c3bc93da 23#include <linux/inet.h>
e48354ce 24#include <target/target_core_base.h>
c4795fb2 25#include <target/target_core_fabric.h>
e48354ce 26#include <target/target_core_fabric_configfs.h>
e48354ce 27#include <target/configfs_macros.h>
2ec5a8c1 28#include <target/iscsi/iscsi_transport.h>
e48354ce 29
67f091f2 30#include <target/iscsi/iscsi_target_core.h>
e48354ce
NB		 31#include "iscsi_target_parameters.h"
32#include "iscsi_target_device.h"
33#include "iscsi_target_erl0.h"
34#include "iscsi_target_nodeattrib.h"
35#include "iscsi_target_tpg.h"
36#include "iscsi_target_util.h"
37#include "iscsi_target.h"
67f091f2 38#include <target/iscsi/iscsi_target_stat.h>
e48354ce
NB		 39
40struct lio_target_configfs_attribute {
41 struct configfs_attribute attr;
42 ssize_t (*show)(void *, char *);
43 ssize_t (*store)(void *, const char *, size_t);
44};
45
e48354ce
NB		 46/* Start items for lio_target_portal_cit */
47
48static ssize_t lio_target_np_show_sctp(
49 struct se_tpg_np *se_tpg_np,
50 char *page)
51{
52 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np,
53 struct iscsi_tpg_np, se_tpg_np);
54 struct iscsi_tpg_np *tpg_np_sctp;
55 ssize_t rb;
56
57 tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP);
58 if (tpg_np_sctp)
59 rb = sprintf(page, "1\n");
60 else
61 rb = sprintf(page, "0\n");
62
63 return rb;
64}
65
66static ssize_t lio_target_np_store_sctp(
67 struct se_tpg_np *se_tpg_np,
68 const char *page,
69 size_t count)
70{
71 struct iscsi_np *np;
72 struct iscsi_portal_group *tpg;
73 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np,
74 struct iscsi_tpg_np, se_tpg_np);
75 struct iscsi_tpg_np *tpg_np_sctp = NULL;
e48354ce
NB		 76 u32 op;
77 int ret;
78
ad7babd2
JE		 79 ret = kstrtou32(page, 0, &op);
80 if (ret)
81 return ret;
e48354ce
NB		 82 if ((op != 1) && (op != 0)) {
83 pr_err("Illegal value for tpg_enable: %u\n", op);
84 return -EINVAL;
85 }
86 np = tpg_np->tpg_np;
87 if (!np) {
88 pr_err("Unable to locate struct iscsi_np from"
89 " struct iscsi_tpg_np\n");
90 return -EINVAL;
91 }
92
93 tpg = tpg_np->tpg;
94 if (iscsit_get_tpg(tpg) < 0)
95 return -EINVAL;
96
97 if (op) {
98 /*
99 * Use existing np->np_sockaddr for SCTP network portal reference
100 */
101 tpg_np_sctp = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr,
102 np->np_ip, tpg_np, ISCSI_SCTP_TCP);
103 if (!tpg_np_sctp || IS_ERR(tpg_np_sctp))
104 goto out;
105 } else {
106 tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP);
107 if (!tpg_np_sctp)
108 goto out;
109
110 ret = iscsit_tpg_del_network_portal(tpg, tpg_np_sctp);
111 if (ret < 0)
112 goto out;
113 }
114
115 iscsit_put_tpg(tpg);
116 return count;
117out:
118 iscsit_put_tpg(tpg);
119 return -EINVAL;
120}
121
122TF_NP_BASE_ATTR(lio_target, sctp, S_IRUGO | S_IWUSR);
123
72438cdd
NB		 124static ssize_t lio_target_np_show_iser(
125 struct se_tpg_np *se_tpg_np,
126 char *page)
127{
128 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np,
129 struct iscsi_tpg_np, se_tpg_np);
130 struct iscsi_tpg_np *tpg_np_iser;
131 ssize_t rb;
132
133 tpg_np_iser = iscsit_tpg_locate_child_np(tpg_np, ISCSI_INFINIBAND);
134 if (tpg_np_iser)
135 rb = sprintf(page, "1\n");
136 else
137 rb = sprintf(page, "0\n");
138
139 return rb;
140}
141
142static ssize_t lio_target_np_store_iser(
143 struct se_tpg_np *se_tpg_np,
144 const char *page,
145 size_t count)
146{
147 struct iscsi_np *np;
148 struct iscsi_portal_group *tpg;
149 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np,
150 struct iscsi_tpg_np, se_tpg_np);
151 struct iscsi_tpg_np *tpg_np_iser = NULL;
152 char *endptr;
153 u32 op;
58bd0c69 154 int rc = 0;
72438cdd
NB		 155
156 op = simple_strtoul(page, &endptr, 0);
157 if ((op != 1) && (op != 0)) {
158 pr_err("Illegal value for tpg_enable: %u\n", op);
159 return -EINVAL;
160 }
161 np = tpg_np->tpg_np;
162 if (!np) {
163 pr_err("Unable to locate struct iscsi_np from"
164 " struct iscsi_tpg_np\n");
165 return -EINVAL;
166 }
167
168 tpg = tpg_np->tpg;
169 if (iscsit_get_tpg(tpg) < 0)
170 return -EINVAL;
171
172 if (op) {
58bd0c69
AG		 173 rc = request_module("ib_isert");
174 if (rc != 0) {
72438cdd 175 pr_warn("Unable to request_module for ib_isert\n");
58bd0c69
AG		 176 rc = 0;
177 }
72438cdd
NB		 178
179 tpg_np_iser = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr,
180 np->np_ip, tpg_np, ISCSI_INFINIBAND);
58bd0c69
AG		 181 if (IS_ERR(tpg_np_iser)) {
182 rc = PTR_ERR(tpg_np_iser);
72438cdd 183 goto out;
58bd0c69 184 }
72438cdd
NB		 185 } else {
186 tpg_np_iser = iscsit_tpg_locate_child_np(tpg_np, ISCSI_INFINIBAND);
58bd0c69
AG		 187 if (tpg_np_iser) {
188 rc = iscsit_tpg_del_network_portal(tpg, tpg_np_iser);
189 if (rc < 0)
190 goto out;
191 }
72438cdd
NB		 192 }
193
72438cdd
NB		 194 iscsit_put_tpg(tpg);
195 return count;
196out:
197 iscsit_put_tpg(tpg);
58bd0c69 198 return rc;
72438cdd
NB		 199}
200
201TF_NP_BASE_ATTR(lio_target, iser, S_IRUGO | S_IWUSR);
202
e48354ce
NB		 203static struct configfs_attribute *lio_target_portal_attrs[] = {
204 &lio_target_np_sctp.attr,
72438cdd 205 &lio_target_np_iser.attr,
e48354ce
NB		 206 NULL,
207};
208
209/* Stop items for lio_target_portal_cit */
210
211/* Start items for lio_target_np_cit */
212
213#define MAX_PORTAL_LEN 256
214
fceb5bc7 215static struct se_tpg_np *lio_target_call_addnptotpg(
e48354ce
NB		 216 struct se_portal_group *se_tpg,
217 struct config_group *group,
218 const char *name)
219{
220 struct iscsi_portal_group *tpg;
221 struct iscsi_tpg_np *tpg_np;
222 char *str, *str2, *ip_str, *port_str;
223 struct __kernel_sockaddr_storage sockaddr;
224 struct sockaddr_in *sock_in;
225 struct sockaddr_in6 *sock_in6;
226 unsigned long port;
227 int ret;
228 char buf[MAX_PORTAL_LEN + 1];
229
230 if (strlen(name) > MAX_PORTAL_LEN) {
231 pr_err("strlen(name): %d exceeds MAX_PORTAL_LEN: %d\n",
232 (int)strlen(name), MAX_PORTAL_LEN);
233 return ERR_PTR(-EOVERFLOW);
234 }
235 memset(buf, 0, MAX_PORTAL_LEN + 1);
7bbb654e 236 snprintf(buf, MAX_PORTAL_LEN + 1, "%s", name);
e48354ce
NB		 237
238 memset(&sockaddr, 0, sizeof(struct __kernel_sockaddr_storage));
239
240 str = strstr(buf, "[");
241 if (str) {
242 const char *end;
243
244 str2 = strstr(str, "]");
245 if (!str2) {
246 pr_err("Unable to locate trailing \"]\""
247 " in IPv6 iSCSI network portal address\n");
248 return ERR_PTR(-EINVAL);
249 }
250 str++; /* Skip over leading "[" */
251 *str2 = '\0'; /* Terminate the IPv6 address */
252 str2++; /* Skip over the "]" */
253 port_str = strstr(str2, ":");
254 if (!port_str) {
255 pr_err("Unable to locate \":port\""
256 " in IPv6 iSCSI network portal address\n");
257 return ERR_PTR(-EINVAL);
258 }
259 *port_str = '\0'; /* Terminate string for IP */
260 port_str++; /* Skip over ":" */
261
57103d7f 262 ret = kstrtoul(port_str, 0, &port);
e48354ce 263 if (ret < 0) {
57103d7f 264 pr_err("kstrtoul() failed for port_str: %d\n", ret);
e48354ce
NB		 265 return ERR_PTR(ret);
266 }
267 sock_in6 = (struct sockaddr_in6 *)&sockaddr;
268 sock_in6->sin6_family = AF_INET6;
269 sock_in6->sin6_port = htons((unsigned short)port);
270 ret = in6_pton(str, IPV6_ADDRESS_SPACE,
271 (void *)&sock_in6->sin6_addr.in6_u, -1, &end);
272 if (ret <= 0) {
273 pr_err("in6_pton returned: %d\n", ret);
274 return ERR_PTR(-EINVAL);
275 }
276 } else {
277 str = ip_str = &buf[0];
278 port_str = strstr(ip_str, ":");
279 if (!port_str) {
280 pr_err("Unable to locate \":port\""
281 " in IPv4 iSCSI network portal address\n");
282 return ERR_PTR(-EINVAL);
283 }
284 *port_str = '\0'; /* Terminate string for IP */
285 port_str++; /* Skip over ":" */
286
57103d7f 287 ret = kstrtoul(port_str, 0, &port);
e48354ce 288 if (ret < 0) {
57103d7f 289 pr_err("kstrtoul() failed for port_str: %d\n", ret);
e48354ce
NB		 290 return ERR_PTR(ret);
291 }
292 sock_in = (struct sockaddr_in *)&sockaddr;
293 sock_in->sin_family = AF_INET;
294 sock_in->sin_port = htons((unsigned short)port);
295 sock_in->sin_addr.s_addr = in_aton(ip_str);
296 }
297 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
298 ret = iscsit_get_tpg(tpg);
299 if (ret < 0)
300 return ERR_PTR(-EINVAL);
301
302 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s TPGT: %hu"
303 " PORTAL: %s\n",
304 config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item),
305 tpg->tpgt, name);
306 /*
307 * Assume ISCSI_TCP by default. Other network portals for other
308 * iSCSI fabrics:
309 *
310 * Traditional iSCSI over SCTP (initial support)
311 * iSER/TCP (TODO, hardware available)
312 * iSER/SCTP (TODO, software emulation with osc-iwarp)
313 * iSER/IB (TODO, hardware available)
314 *
20879696 315 * can be enabled with attributes under
e48354ce
NB		 316 * sys/kernel/config/iscsi/$IQN/$TPG/np/$IP:$PORT/
317 *
318 */
319 tpg_np = iscsit_tpg_add_network_portal(tpg, &sockaddr, str, NULL,
320 ISCSI_TCP);
321 if (IS_ERR(tpg_np)) {
322 iscsit_put_tpg(tpg);
e1750ba2 323 return ERR_CAST(tpg_np);
e48354ce
NB		 324 }
325 pr_debug("LIO_Target_ConfigFS: addnptotpg done!\n");
326
327 iscsit_put_tpg(tpg);
328 return &tpg_np->se_tpg_np;
329}
330
331static void lio_target_call_delnpfromtpg(
332 struct se_tpg_np *se_tpg_np)
333{
334 struct iscsi_portal_group *tpg;
335 struct iscsi_tpg_np *tpg_np;
336 struct se_portal_group *se_tpg;
337 int ret;
338
339 tpg_np = container_of(se_tpg_np, struct iscsi_tpg_np, se_tpg_np);
340 tpg = tpg_np->tpg;
341 ret = iscsit_get_tpg(tpg);
342 if (ret < 0)
343 return;
344
345 se_tpg = &tpg->tpg_se_tpg;
346 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s TPGT: %hu"
347 " PORTAL: %s:%hu\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item),
348 tpg->tpgt, tpg_np->tpg_np->np_ip, tpg_np->tpg_np->np_port);
349
350 ret = iscsit_tpg_del_network_portal(tpg, tpg_np);
351 if (ret < 0)
352 goto out;
353
354 pr_debug("LIO_Target_ConfigFS: delnpfromtpg done!\n");
355out:
356 iscsit_put_tpg(tpg);
357}
358
359/* End items for lio_target_np_cit */
360
361/* Start items for lio_target_nacl_attrib_cit */
362
363#define DEF_NACL_ATTRIB(name) \
364static ssize_t iscsi_nacl_attrib_show_##name( \
365 struct se_node_acl *se_nacl, \
366 char *page) \
367{ \
368 struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \
369 se_node_acl); \
370 \
b7eec2cd 371 return sprintf(page, "%u\n", nacl->node_attrib.name); \
e48354ce
NB		 372} \
373 \
374static ssize_t iscsi_nacl_attrib_store_##name( \
375 struct se_node_acl *se_nacl, \
376 const char *page, \
377 size_t count) \
378{ \
379 struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \
380 se_node_acl); \
e48354ce
NB		 381 u32 val; \
382 int ret; \
383 \
ad7babd2
JE		 384 ret = kstrtou32(page, 0, &val); \
385 if (ret) \
386 return ret; \
e48354ce
NB		 387 ret = iscsit_na_##name(nacl, val); \
388 if (ret < 0) \
389 return ret; \
390 \
391 return count; \
392}
393
394#define NACL_ATTR(_name, _mode) TF_NACL_ATTRIB_ATTR(iscsi, _name, _mode);
395/*
396 * Define iscsi_node_attrib_s_dataout_timeout
397 */
398DEF_NACL_ATTRIB(dataout_timeout);
399NACL_ATTR(dataout_timeout, S_IRUGO | S_IWUSR);
400/*
401 * Define iscsi_node_attrib_s_dataout_timeout_retries
402 */
403DEF_NACL_ATTRIB(dataout_timeout_retries);
404NACL_ATTR(dataout_timeout_retries, S_IRUGO | S_IWUSR);
405/*
406 * Define iscsi_node_attrib_s_default_erl
407 */
408DEF_NACL_ATTRIB(default_erl);
409NACL_ATTR(default_erl, S_IRUGO | S_IWUSR);
410/*
411 * Define iscsi_node_attrib_s_nopin_timeout
412 */
413DEF_NACL_ATTRIB(nopin_timeout);
414NACL_ATTR(nopin_timeout, S_IRUGO | S_IWUSR);
415/*
416 * Define iscsi_node_attrib_s_nopin_response_timeout
417 */
418DEF_NACL_ATTRIB(nopin_response_timeout);
419NACL_ATTR(nopin_response_timeout, S_IRUGO | S_IWUSR);
420/*
421 * Define iscsi_node_attrib_s_random_datain_pdu_offsets
422 */
423DEF_NACL_ATTRIB(random_datain_pdu_offsets);
424NACL_ATTR(random_datain_pdu_offsets, S_IRUGO | S_IWUSR);
425/*
426 * Define iscsi_node_attrib_s_random_datain_seq_offsets
427 */
428DEF_NACL_ATTRIB(random_datain_seq_offsets);
429NACL_ATTR(random_datain_seq_offsets, S_IRUGO | S_IWUSR);
430/*
431 * Define iscsi_node_attrib_s_random_r2t_offsets
432 */
433DEF_NACL_ATTRIB(random_r2t_offsets);
434NACL_ATTR(random_r2t_offsets, S_IRUGO | S_IWUSR);
435
436static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = {
437 &iscsi_nacl_attrib_dataout_timeout.attr,
438 &iscsi_nacl_attrib_dataout_timeout_retries.attr,
439 &iscsi_nacl_attrib_default_erl.attr,
440 &iscsi_nacl_attrib_nopin_timeout.attr,
441 &iscsi_nacl_attrib_nopin_response_timeout.attr,
442 &iscsi_nacl_attrib_random_datain_pdu_offsets.attr,
443 &iscsi_nacl_attrib_random_datain_seq_offsets.attr,
444 &iscsi_nacl_attrib_random_r2t_offsets.attr,
445 NULL,
446};
447
448/* End items for lio_target_nacl_attrib_cit */
449
450/* Start items for lio_target_nacl_auth_cit */
451
452#define __DEF_NACL_AUTH_STR(prefix, name, flags) \
453static ssize_t __iscsi_##prefix##_show_##name( \
454 struct iscsi_node_acl *nacl, \
455 char *page) \
456{ \
457 struct iscsi_node_auth *auth = &nacl->node_auth; \
458 \
459 if (!capable(CAP_SYS_ADMIN)) \
460 return -EPERM; \
461 return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \
462} \
463 \
464static ssize_t __iscsi_##prefix##_store_##name( \
465 struct iscsi_node_acl *nacl, \
466 const char *page, \
467 size_t count) \
468{ \
469 struct iscsi_node_auth *auth = &nacl->node_auth; \
470 \
471 if (!capable(CAP_SYS_ADMIN)) \
472 return -EPERM; \
2306bfb2
ES		 473 if (count >= sizeof(auth->name)) \
474 return -EINVAL; \
0fbfc46f 475 snprintf(auth->name, sizeof(auth->name), "%s", page); \
e48354ce
NB		 476 if (!strncmp("NULL", auth->name, 4)) \
477 auth->naf_flags &= ~flags; \
478 else \
479 auth->naf_flags |= flags; \
480 \
481 if ((auth->naf_flags & NAF_USERID_IN_SET) && \
482 (auth->naf_flags & NAF_PASSWORD_IN_SET)) \
483 auth->authenticate_target = 1; \
484 else \
485 auth->authenticate_target = 0; \
486 \
487 return count; \
488}
489
490#define __DEF_NACL_AUTH_INT(prefix, name) \
491static ssize_t __iscsi_##prefix##_show_##name( \
492 struct iscsi_node_acl *nacl, \
493 char *page) \
494{ \
495 struct iscsi_node_auth *auth = &nacl->node_auth; \
496 \
497 if (!capable(CAP_SYS_ADMIN)) \
498 return -EPERM; \
499 \
500 return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \
501}
502
503#define DEF_NACL_AUTH_STR(name, flags) \
504 __DEF_NACL_AUTH_STR(nacl_auth, name, flags) \
505static ssize_t iscsi_nacl_auth_show_##name( \
506 struct se_node_acl *nacl, \
507 char *page) \
508{ \
509 return __iscsi_nacl_auth_show_##name(container_of(nacl, \
510 struct iscsi_node_acl, se_node_acl), page); \
511} \
512static ssize_t iscsi_nacl_auth_store_##name( \
513 struct se_node_acl *nacl, \
514 const char *page, \
515 size_t count) \
516{ \
517 return __iscsi_nacl_auth_store_##name(container_of(nacl, \
518 struct iscsi_node_acl, se_node_acl), page, count); \
519}
520
521#define DEF_NACL_AUTH_INT(name) \
522 __DEF_NACL_AUTH_INT(nacl_auth, name) \
523static ssize_t iscsi_nacl_auth_show_##name( \
524 struct se_node_acl *nacl, \
525 char *page) \
526{ \
527 return __iscsi_nacl_auth_show_##name(container_of(nacl, \
528 struct iscsi_node_acl, se_node_acl), page); \
529}
530
531#define AUTH_ATTR(_name, _mode) TF_NACL_AUTH_ATTR(iscsi, _name, _mode);
532#define AUTH_ATTR_RO(_name) TF_NACL_AUTH_ATTR_RO(iscsi, _name);
533
534/*
535 * One-way authentication userid
536 */
537DEF_NACL_AUTH_STR(userid, NAF_USERID_SET);
538AUTH_ATTR(userid, S_IRUGO | S_IWUSR);
539/*
540 * One-way authentication password
541 */
542DEF_NACL_AUTH_STR(password, NAF_PASSWORD_SET);
543AUTH_ATTR(password, S_IRUGO | S_IWUSR);
544/*
545 * Enforce mutual authentication
546 */
547DEF_NACL_AUTH_INT(authenticate_target);
548AUTH_ATTR_RO(authenticate_target);
549/*
550 * Mutual authentication userid
551 */
552DEF_NACL_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
553AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR);
554/*
555 * Mutual authentication password
556 */
557DEF_NACL_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
558AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR);
559
560static struct configfs_attribute *lio_target_nacl_auth_attrs[] = {
561 &iscsi_nacl_auth_userid.attr,
562 &iscsi_nacl_auth_password.attr,
563 &iscsi_nacl_auth_authenticate_target.attr,
564 &iscsi_nacl_auth_userid_mutual.attr,
565 &iscsi_nacl_auth_password_mutual.attr,
566 NULL,
567};
568
569/* End items for lio_target_nacl_auth_cit */
570
571/* Start items for lio_target_nacl_param_cit */
572
573#define DEF_NACL_PARAM(name) \
574static ssize_t iscsi_nacl_param_show_##name( \
575 struct se_node_acl *se_nacl, \
576 char *page) \
577{ \
578 struct iscsi_session *sess; \
579 struct se_session *se_sess; \
580 ssize_t rb; \
581 \
582 spin_lock_bh(&se_nacl->nacl_sess_lock); \
583 se_sess = se_nacl->nacl_sess; \
584 if (!se_sess) { \
585 rb = snprintf(page, PAGE_SIZE, \
586 "No Active iSCSI Session\n"); \
587 } else { \
588 sess = se_sess->fabric_sess_ptr; \
589 rb = snprintf(page, PAGE_SIZE, "%u\n", \
590 (u32)sess->sess_ops->name); \
591 } \
592 spin_unlock_bh(&se_nacl->nacl_sess_lock); \
593 \
594 return rb; \
595}
596
597#define NACL_PARAM_ATTR(_name) TF_NACL_PARAM_ATTR_RO(iscsi, _name);
598
599DEF_NACL_PARAM(MaxConnections);
600NACL_PARAM_ATTR(MaxConnections);
601
602DEF_NACL_PARAM(InitialR2T);
603NACL_PARAM_ATTR(InitialR2T);
604
605DEF_NACL_PARAM(ImmediateData);
606NACL_PARAM_ATTR(ImmediateData);
607
608DEF_NACL_PARAM(MaxBurstLength);
609NACL_PARAM_ATTR(MaxBurstLength);
610
611DEF_NACL_PARAM(FirstBurstLength);
612NACL_PARAM_ATTR(FirstBurstLength);
613
614DEF_NACL_PARAM(DefaultTime2Wait);
615NACL_PARAM_ATTR(DefaultTime2Wait);
616
617DEF_NACL_PARAM(DefaultTime2Retain);
618NACL_PARAM_ATTR(DefaultTime2Retain);
619
620DEF_NACL_PARAM(MaxOutstandingR2T);
621NACL_PARAM_ATTR(MaxOutstandingR2T);
622
623DEF_NACL_PARAM(DataPDUInOrder);
624NACL_PARAM_ATTR(DataPDUInOrder);
625
626DEF_NACL_PARAM(DataSequenceInOrder);
627NACL_PARAM_ATTR(DataSequenceInOrder);
628
629DEF_NACL_PARAM(ErrorRecoveryLevel);
630NACL_PARAM_ATTR(ErrorRecoveryLevel);
631
632static struct configfs_attribute *lio_target_nacl_param_attrs[] = {
633 &iscsi_nacl_param_MaxConnections.attr,
634 &iscsi_nacl_param_InitialR2T.attr,
635 &iscsi_nacl_param_ImmediateData.attr,
636 &iscsi_nacl_param_MaxBurstLength.attr,
637 &iscsi_nacl_param_FirstBurstLength.attr,
638 &iscsi_nacl_param_DefaultTime2Wait.attr,
639 &iscsi_nacl_param_DefaultTime2Retain.attr,
640 &iscsi_nacl_param_MaxOutstandingR2T.attr,
641 &iscsi_nacl_param_DataPDUInOrder.attr,
642 &iscsi_nacl_param_DataSequenceInOrder.attr,
643 &iscsi_nacl_param_ErrorRecoveryLevel.attr,
644 NULL,
645};
646
647/* End items for lio_target_nacl_param_cit */
648
649/* Start items for lio_target_acl_cit */
650
651static ssize_t lio_target_nacl_show_info(
652 struct se_node_acl *se_nacl,
653 char *page)
654{
655 struct iscsi_session *sess;
656 struct iscsi_conn *conn;
657 struct se_session *se_sess;
658 ssize_t rb = 0;
659
660 spin_lock_bh(&se_nacl->nacl_sess_lock);
661 se_sess = se_nacl->nacl_sess;
662 if (!se_sess) {
663 rb += sprintf(page+rb, "No active iSCSI Session for Initiator"
664 " Endpoint: %s\n", se_nacl->initiatorname);
665 } else {
666 sess = se_sess->fabric_sess_ptr;
667
cb354842
JE		 668 rb += sprintf(page+rb, "InitiatorName: %s\n",
669 sess->sess_ops->InitiatorName);
670 rb += sprintf(page+rb, "InitiatorAlias: %s\n",
671 sess->sess_ops->InitiatorAlias);
e48354ce 672
5cdf5a87
AS		 673 rb += sprintf(page+rb,
674 "LIO Session ID: %u ISID: 0x%6ph TSIH: %hu ",
675 sess->sid, sess->isid, sess->tsih);
e48354ce
NB		 676 rb += sprintf(page+rb, "SessionType: %s\n",
677 (sess->sess_ops->SessionType) ?
678 "Discovery" : "Normal");
679 rb += sprintf(page+rb, "Session State: ");
680 switch (sess->session_state) {
681 case TARG_SESS_STATE_FREE:
682 rb += sprintf(page+rb, "TARG_SESS_FREE\n");
683 break;
684 case TARG_SESS_STATE_ACTIVE:
685 rb += sprintf(page+rb, "TARG_SESS_STATE_ACTIVE\n");
686 break;
687 case TARG_SESS_STATE_LOGGED_IN:
688 rb += sprintf(page+rb, "TARG_SESS_STATE_LOGGED_IN\n");
689 break;
690 case TARG_SESS_STATE_FAILED:
691 rb += sprintf(page+rb, "TARG_SESS_STATE_FAILED\n");
692 break;
693 case TARG_SESS_STATE_IN_CONTINUE:
694 rb += sprintf(page+rb, "TARG_SESS_STATE_IN_CONTINUE\n");
695 break;
696 default:
697 rb += sprintf(page+rb, "ERROR: Unknown Session"
698 " State!\n");
699 break;
700 }
701
702 rb += sprintf(page+rb, "---------------------[iSCSI Session"
703 " Values]-----------------------\n");
704 rb += sprintf(page+rb, " CmdSN/WR : CmdSN/WC : ExpCmdSN"
705 " : MaxCmdSN : ITT : TTT\n");
706 rb += sprintf(page+rb, " 0x%08x 0x%08x 0x%08x 0x%08x"
707 " 0x%08x 0x%08x\n",
708 sess->cmdsn_window,
709 (sess->max_cmd_sn - sess->exp_cmd_sn) + 1,
710 sess->exp_cmd_sn, sess->max_cmd_sn,
711 sess->init_task_tag, sess->targ_xfer_tag);
712 rb += sprintf(page+rb, "----------------------[iSCSI"
713 " Connections]-------------------------\n");
714
715 spin_lock(&sess->conn_lock);
716 list_for_each_entry(conn, &sess->sess_conn_list, conn_list) {
717 rb += sprintf(page+rb, "CID: %hu Connection"
718 " State: ", conn->cid);
719 switch (conn->conn_state) {
720 case TARG_CONN_STATE_FREE:
721 rb += sprintf(page+rb,
722 "TARG_CONN_STATE_FREE\n");
723 break;
724 case TARG_CONN_STATE_XPT_UP:
725 rb += sprintf(page+rb,
726 "TARG_CONN_STATE_XPT_UP\n");
727 break;
728 case TARG_CONN_STATE_IN_LOGIN:
729 rb += sprintf(page+rb,
730 "TARG_CONN_STATE_IN_LOGIN\n");
731 break;
732 case TARG_CONN_STATE_LOGGED_IN:
733 rb += sprintf(page+rb,
734 "TARG_CONN_STATE_LOGGED_IN\n");
735 break;
736 case TARG_CONN_STATE_IN_LOGOUT:
737 rb += sprintf(page+rb,
738 "TARG_CONN_STATE_IN_LOGOUT\n");
739 break;
740 case TARG_CONN_STATE_LOGOUT_REQUESTED:
741 rb += sprintf(page+rb,
742 "TARG_CONN_STATE_LOGOUT_REQUESTED\n");
743 break;
744 case TARG_CONN_STATE_CLEANUP_WAIT:
745 rb += sprintf(page+rb,
746 "TARG_CONN_STATE_CLEANUP_WAIT\n");
747 break;
748 default:
749 rb += sprintf(page+rb,
750 "ERROR: Unknown Connection State!\n");
751 break;
752 }
753
754 rb += sprintf(page+rb, " Address %s %s", conn->login_ip,
755 (conn->network_transport == ISCSI_TCP) ?
756 "TCP" : "SCTP");
757 rb += sprintf(page+rb, " StatSN: 0x%08x\n",
758 conn->stat_sn);
759 }
760 spin_unlock(&sess->conn_lock);
761 }
762 spin_unlock_bh(&se_nacl->nacl_sess_lock);
763
764 return rb;
765}
766
767TF_NACL_BASE_ATTR_RO(lio_target, info);
768
769static ssize_t lio_target_nacl_show_cmdsn_depth(
770 struct se_node_acl *se_nacl,
771 char *page)
772{
773 return sprintf(page, "%u\n", se_nacl->queue_depth);
774}
775
776static ssize_t lio_target_nacl_store_cmdsn_depth(
777 struct se_node_acl *se_nacl,
778 const char *page,
779 size_t count)
780{
781 struct se_portal_group *se_tpg = se_nacl->se_tpg;
782 struct iscsi_portal_group *tpg = container_of(se_tpg,
783 struct iscsi_portal_group, tpg_se_tpg);
784 struct config_item *acl_ci, *tpg_ci, *wwn_ci;
e48354ce
NB		 785 u32 cmdsn_depth = 0;
786 int ret;
787
ad7babd2
JE		 788 ret = kstrtou32(page, 0, &cmdsn_depth);
789 if (ret)
790 return ret;
e48354ce
NB		 791 if (cmdsn_depth > TA_DEFAULT_CMDSN_DEPTH_MAX) {
792 pr_err("Passed cmdsn_depth: %u exceeds"
793 " TA_DEFAULT_CMDSN_DEPTH_MAX: %u\n", cmdsn_depth,
794 TA_DEFAULT_CMDSN_DEPTH_MAX);
795 return -EINVAL;
796 }
797 acl_ci = &se_nacl->acl_group.cg_item;
798 if (!acl_ci) {
799 pr_err("Unable to locatel acl_ci\n");
800 return -EINVAL;
801 }
802 tpg_ci = &acl_ci->ci_parent->ci_group->cg_item;
803 if (!tpg_ci) {
804 pr_err("Unable to locate tpg_ci\n");
805 return -EINVAL;
806 }
807 wwn_ci = &tpg_ci->ci_group->cg_item;
808 if (!wwn_ci) {
809 pr_err("Unable to locate config_item wwn_ci\n");
810 return -EINVAL;
811 }
812
813 if (iscsit_get_tpg(tpg) < 0)
814 return -EINVAL;
815 /*
816 * iscsit_tpg_set_initiator_node_queue_depth() assumes force=1
817 */
818 ret = iscsit_tpg_set_initiator_node_queue_depth(tpg,
819 config_item_name(acl_ci), cmdsn_depth, 1);
820
821 pr_debug("LIO_Target_ConfigFS: %s/%s Set CmdSN Window: %u for"
822 "InitiatorName: %s\n", config_item_name(wwn_ci),
823 config_item_name(tpg_ci), cmdsn_depth,
824 config_item_name(acl_ci));
825
826 iscsit_put_tpg(tpg);
827 return (!ret) ? count : (ssize_t)ret;
828}
829
830TF_NACL_BASE_ATTR(lio_target, cmdsn_depth, S_IRUGO | S_IWUSR);
831
79e62fc3
AG		 832static ssize_t lio_target_nacl_show_tag(
833 struct se_node_acl *se_nacl,
834 char *page)
835{
836 return snprintf(page, PAGE_SIZE, "%s", se_nacl->acl_tag);
837}
838
839static ssize_t lio_target_nacl_store_tag(
840 struct se_node_acl *se_nacl,
841 const char *page,
842 size_t count)
843{
844 int ret;
845
846 ret = core_tpg_set_initiator_node_tag(se_nacl->se_tpg, se_nacl, page);
847
848 if (ret < 0)
849 return ret;
850 return count;
851}
852
853TF_NACL_BASE_ATTR(lio_target, tag, S_IRUGO | S_IWUSR);
854
e48354ce
NB		 855static struct configfs_attribute *lio_target_initiator_attrs[] = {
856 &lio_target_nacl_info.attr,
857 &lio_target_nacl_cmdsn_depth.attr,
79e62fc3 858 &lio_target_nacl_tag.attr,
e48354ce
NB		 859 NULL,
860};
861
c7d6a803
CH		 862static int lio_target_init_nodeacl(struct se_node_acl *se_nacl,
863 const char *name)
e48354ce 864{
c7d6a803
CH		 865 struct iscsi_node_acl *acl =
866 container_of(se_nacl, struct iscsi_node_acl, se_node_acl);
867 struct config_group *stats_cg = &se_nacl->acl_fabric_stat_group;
e48354ce 868
13f6a914 869 stats_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2,
e48354ce
NB		 870 GFP_KERNEL);
871 if (!stats_cg->default_groups) {
872 pr_err("Unable to allocate memory for"
873 " stats_cg->default_groups\n");
c7d6a803 874 return -ENOMEM;
e48354ce
NB		 875 }
876
b7eec2cd 877 stats_cg->default_groups[0] = &acl->node_stat_grps.iscsi_sess_stats_group;
e48354ce 878 stats_cg->default_groups[1] = NULL;
b7eec2cd 879 config_group_init_type_name(&acl->node_stat_grps.iscsi_sess_stats_group,
e48354ce
NB		 880 "iscsi_sess_stats", &iscsi_stat_sess_cit);
881
c7d6a803 882 return 0;
e48354ce
NB		 883}
884
c7d6a803 885static void lio_target_cleanup_nodeacl( struct se_node_acl *se_nacl)
e48354ce 886{
e48354ce
NB		 887 struct iscsi_node_acl *acl = container_of(se_nacl,
888 struct iscsi_node_acl, se_node_acl);
889 struct config_item *df_item;
890 struct config_group *stats_cg;
891 int i;
892
893 stats_cg = &acl->se_node_acl.acl_fabric_stat_group;
894 for (i = 0; stats_cg->default_groups[i]; i++) {
895 df_item = &stats_cg->default_groups[i]->cg_item;
896 stats_cg->default_groups[i] = NULL;
897 config_item_put(df_item);
898 }
899 kfree(stats_cg->default_groups);
e48354ce
NB		 900}
901
902/* End items for lio_target_acl_cit */
903
904/* Start items for lio_target_tpg_attrib_cit */
905
906#define DEF_TPG_ATTRIB(name) \
907 \
908static ssize_t iscsi_tpg_attrib_show_##name( \
909 struct se_portal_group *se_tpg, \
910 char *page) \
911{ \
912 struct iscsi_portal_group *tpg = container_of(se_tpg, \
913 struct iscsi_portal_group, tpg_se_tpg); \
914 ssize_t rb; \
915 \
916 if (iscsit_get_tpg(tpg) < 0) \
917 return -EINVAL; \
918 \
b7eec2cd 919 rb = sprintf(page, "%u\n", tpg->tpg_attrib.name); \
e48354ce
NB		 920 iscsit_put_tpg(tpg); \
921 return rb; \
922} \
923 \
924static ssize_t iscsi_tpg_attrib_store_##name( \
925 struct se_portal_group *se_tpg, \
926 const char *page, \
927 size_t count) \
928{ \
929 struct iscsi_portal_group *tpg = container_of(se_tpg, \
930 struct iscsi_portal_group, tpg_se_tpg); \
e48354ce
NB		 931 u32 val; \
932 int ret; \
933 \
934 if (iscsit_get_tpg(tpg) < 0) \
935 return -EINVAL; \
936 \
ad7babd2
JE		 937 ret = kstrtou32(page, 0, &val); \
938 if (ret) \
939 goto out; \
e48354ce
NB		 940 ret = iscsit_ta_##name(tpg, val); \
941 if (ret < 0) \
942 goto out; \
943 \
944 iscsit_put_tpg(tpg); \
945 return count; \
946out: \
947 iscsit_put_tpg(tpg); \
948 return ret; \
949}
950
951#define TPG_ATTR(_name, _mode) TF_TPG_ATTRIB_ATTR(iscsi, _name, _mode);
952
953/*
954 * Define iscsi_tpg_attrib_s_authentication
955 */
956DEF_TPG_ATTRIB(authentication);
957TPG_ATTR(authentication, S_IRUGO | S_IWUSR);
958/*
959 * Define iscsi_tpg_attrib_s_login_timeout
960 */
961DEF_TPG_ATTRIB(login_timeout);
962TPG_ATTR(login_timeout, S_IRUGO | S_IWUSR);
963/*
964 * Define iscsi_tpg_attrib_s_netif_timeout
965 */
966DEF_TPG_ATTRIB(netif_timeout);
967TPG_ATTR(netif_timeout, S_IRUGO | S_IWUSR);
968/*
969 * Define iscsi_tpg_attrib_s_generate_node_acls
970 */
971DEF_TPG_ATTRIB(generate_node_acls);
972TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR);
973/*
974 * Define iscsi_tpg_attrib_s_default_cmdsn_depth
975 */
976DEF_TPG_ATTRIB(default_cmdsn_depth);
977TPG_ATTR(default_cmdsn_depth, S_IRUGO | S_IWUSR);
978/*
979 Define iscsi_tpg_attrib_s_cache_dynamic_acls
980 */
981DEF_TPG_ATTRIB(cache_dynamic_acls);
982TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR);
983/*
984 * Define iscsi_tpg_attrib_s_demo_mode_write_protect
985 */
986DEF_TPG_ATTRIB(demo_mode_write_protect);
987TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR);
988/*
989 * Define iscsi_tpg_attrib_s_prod_mode_write_protect
990 */
991DEF_TPG_ATTRIB(prod_mode_write_protect);
992TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR);
4c54b6cf
TG		 993/*
994 * Define iscsi_tpg_attrib_s_demo_mode_discovery,
995 */
996DEF_TPG_ATTRIB(demo_mode_discovery);
997TPG_ATTR(demo_mode_discovery, S_IRUGO | S_IWUSR);
d1fa7a1d
NB		 998/*
999 * Define iscsi_tpg_attrib_s_default_erl
1000 */
1001DEF_TPG_ATTRIB(default_erl);
1002TPG_ATTR(default_erl, S_IRUGO | S_IWUSR);
8085176f
SG		 1003/*
1004 * Define iscsi_tpg_attrib_s_t10_pi
1005 */
1006DEF_TPG_ATTRIB(t10_pi);
1007TPG_ATTR(t10_pi, S_IRUGO | S_IWUSR);
901c04a3
NB		 1008/*
1009 * Define iscsi_tpg_attrib_s_fabric_prot_type
1010 */
1011DEF_TPG_ATTRIB(fabric_prot_type);
1012TPG_ATTR(fabric_prot_type, S_IRUGO | S_IWUSR);
e48354ce
NB		 1013
1014static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
1015 &iscsi_tpg_attrib_authentication.attr,
1016 &iscsi_tpg_attrib_login_timeout.attr,
1017 &iscsi_tpg_attrib_netif_timeout.attr,
1018 &iscsi_tpg_attrib_generate_node_acls.attr,
1019 &iscsi_tpg_attrib_default_cmdsn_depth.attr,
1020 &iscsi_tpg_attrib_cache_dynamic_acls.attr,
1021 &iscsi_tpg_attrib_demo_mode_write_protect.attr,
1022 &iscsi_tpg_attrib_prod_mode_write_protect.attr,
4c54b6cf 1023 &iscsi_tpg_attrib_demo_mode_discovery.attr,
d1fa7a1d 1024 &iscsi_tpg_attrib_default_erl.attr,
8085176f 1025 &iscsi_tpg_attrib_t10_pi.attr,
901c04a3 1026 &iscsi_tpg_attrib_fabric_prot_type.attr,
e48354ce
NB		 1027 NULL,
1028};
1029
1030/* End items for lio_target_tpg_attrib_cit */
1031
c3e51442
NB		 1032/* Start items for lio_target_tpg_auth_cit */
1033
1034#define __DEF_TPG_AUTH_STR(prefix, name, flags) \
1035static ssize_t __iscsi_##prefix##_show_##name( \
1036 struct se_portal_group *se_tpg, \
1037 char *page) \
1038{ \
1039 struct iscsi_portal_group *tpg = container_of(se_tpg, \
1040 struct iscsi_portal_group, tpg_se_tpg); \
1041 struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \
1042 \
1043 if (!capable(CAP_SYS_ADMIN)) \
1044 return -EPERM; \
1045 \
1046 return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \
1047} \
1048 \
1049static ssize_t __iscsi_##prefix##_store_##name( \
1050 struct se_portal_group *se_tpg, \
1051 const char *page, \
1052 size_t count) \
1053{ \
1054 struct iscsi_portal_group *tpg = container_of(se_tpg, \
1055 struct iscsi_portal_group, tpg_se_tpg); \
1056 struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \
1057 \
1058 if (!capable(CAP_SYS_ADMIN)) \
1059 return -EPERM; \
1060 \
37b32c6f 1061 snprintf(auth->name, sizeof(auth->name), "%s", page); \
c3e51442
NB		 1062 if (!(strncmp("NULL", auth->name, 4))) \
1063 auth->naf_flags &= ~flags; \
1064 else \
1065 auth->naf_flags |= flags; \
1066 \
1067 if ((auth->naf_flags & NAF_USERID_IN_SET) && \
1068 (auth->naf_flags & NAF_PASSWORD_IN_SET)) \
1069 auth->authenticate_target = 1; \
1070 else \
1071 auth->authenticate_target = 0; \
1072 \
1073 return count; \
1074}
1075
1076#define __DEF_TPG_AUTH_INT(prefix, name) \
1077static ssize_t __iscsi_##prefix##_show_##name( \
1078 struct se_portal_group *se_tpg, \
1079 char *page) \
1080{ \
1081 struct iscsi_portal_group *tpg = container_of(se_tpg, \
1082 struct iscsi_portal_group, tpg_se_tpg); \
1083 struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \
1084 \
1085 if (!capable(CAP_SYS_ADMIN)) \
1086 return -EPERM; \
1087 \
1088 return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \
1089}
1090
1091#define DEF_TPG_AUTH_STR(name, flags) \
1092 __DEF_TPG_AUTH_STR(tpg_auth, name, flags) \
1093static ssize_t iscsi_tpg_auth_show_##name( \
1094 struct se_portal_group *se_tpg, \
1095 char *page) \
1096{ \
1097 return __iscsi_tpg_auth_show_##name(se_tpg, page); \
1098} \
1099 \
1100static ssize_t iscsi_tpg_auth_store_##name( \
1101 struct se_portal_group *se_tpg, \
1102 const char *page, \
1103 size_t count) \
1104{ \
1105 return __iscsi_tpg_auth_store_##name(se_tpg, page, count); \
1106}
1107
1108#define DEF_TPG_AUTH_INT(name) \
1109 __DEF_TPG_AUTH_INT(tpg_auth, name) \
1110static ssize_t iscsi_tpg_auth_show_##name( \
1111 struct se_portal_group *se_tpg, \
1112 char *page) \
1113{ \
1114 return __iscsi_tpg_auth_show_##name(se_tpg, page); \
1115}
1116
1117#define TPG_AUTH_ATTR(_name, _mode) TF_TPG_AUTH_ATTR(iscsi, _name, _mode);
1118#define TPG_AUTH_ATTR_RO(_name) TF_TPG_AUTH_ATTR_RO(iscsi, _name);
1119
1120/*
1121 * * One-way authentication userid
1122 * */
1123DEF_TPG_AUTH_STR(userid, NAF_USERID_SET);
1124TPG_AUTH_ATTR(userid, S_IRUGO | S_IWUSR);
1125/*
1126 * * One-way authentication password
1127 * */
1128DEF_TPG_AUTH_STR(password, NAF_PASSWORD_SET);
1129TPG_AUTH_ATTR(password, S_IRUGO | S_IWUSR);
1130/*
1131 * * Enforce mutual authentication
1132 * */
1133DEF_TPG_AUTH_INT(authenticate_target);
1134TPG_AUTH_ATTR_RO(authenticate_target);
1135/*
1136 * * Mutual authentication userid
1137 * */
1138DEF_TPG_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
1139TPG_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR);
1140/*
1141 * * Mutual authentication password
1142 * */
1143DEF_TPG_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
1144TPG_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR);
1145
1146static struct configfs_attribute *lio_target_tpg_auth_attrs[] = {
1147 &iscsi_tpg_auth_userid.attr,
1148 &iscsi_tpg_auth_password.attr,
1149 &iscsi_tpg_auth_authenticate_target.attr,
1150 &iscsi_tpg_auth_userid_mutual.attr,
1151 &iscsi_tpg_auth_password_mutual.attr,
1152 NULL,
1153};
1154
1155/* End items for lio_target_tpg_auth_cit */
1156
e48354ce
NB		 1157/* Start items for lio_target_tpg_param_cit */
1158
1159#define DEF_TPG_PARAM(name) \
1160static ssize_t iscsi_tpg_param_show_##name( \
1161 struct se_portal_group *se_tpg, \
1162 char *page) \
1163{ \
1164 struct iscsi_portal_group *tpg = container_of(se_tpg, \
1165 struct iscsi_portal_group, tpg_se_tpg); \
1166 struct iscsi_param *param; \
1167 ssize_t rb; \
1168 \
1169 if (iscsit_get_tpg(tpg) < 0) \
1170 return -EINVAL; \
1171 \
1172 param = iscsi_find_param_from_key(__stringify(name), \
1173 tpg->param_list); \
1174 if (!param) { \
1175 iscsit_put_tpg(tpg); \
1176 return -EINVAL; \
1177 } \
1178 rb = snprintf(page, PAGE_SIZE, "%s\n", param->value); \
1179 \
1180 iscsit_put_tpg(tpg); \
1181 return rb; \
1182} \
1183static ssize_t iscsi_tpg_param_store_##name( \
1184 struct se_portal_group *se_tpg, \
1185 const char *page, \
1186 size_t count) \
1187{ \
1188 struct iscsi_portal_group *tpg = container_of(se_tpg, \
1189 struct iscsi_portal_group, tpg_se_tpg); \
1190 char *buf; \
ad7babd2 1191 int ret, len; \
e48354ce
NB		 1192 \
1193 buf = kzalloc(PAGE_SIZE, GFP_KERNEL); \
1194 if (!buf) \
1195 return -ENOMEM; \
ad7babd2
JE		 1196 len = snprintf(buf, PAGE_SIZE, "%s=%s", __stringify(name), page); \
1197 if (isspace(buf[len-1])) \
1198 buf[len-1] = '\0'; /* Kill newline */ \
e48354ce
NB		 1199 \
1200 if (iscsit_get_tpg(tpg) < 0) { \
1201 kfree(buf); \
1202 return -EINVAL; \
1203 } \
1204 \
1205 ret = iscsi_change_param_value(buf, tpg->param_list, 1); \
1206 if (ret < 0) \
1207 goto out; \
1208 \
1209 kfree(buf); \
1210 iscsit_put_tpg(tpg); \
1211 return count; \
1212out: \
1213 kfree(buf); \
1214 iscsit_put_tpg(tpg); \
1215 return -EINVAL; \
1216}
1217
1218#define TPG_PARAM_ATTR(_name, _mode) TF_TPG_PARAM_ATTR(iscsi, _name, _mode);
1219
1220DEF_TPG_PARAM(AuthMethod);
1221TPG_PARAM_ATTR(AuthMethod, S_IRUGO | S_IWUSR);
1222
1223DEF_TPG_PARAM(HeaderDigest);
1224TPG_PARAM_ATTR(HeaderDigest, S_IRUGO | S_IWUSR);
1225
1226DEF_TPG_PARAM(DataDigest);
1227TPG_PARAM_ATTR(DataDigest, S_IRUGO | S_IWUSR);
1228
1229DEF_TPG_PARAM(MaxConnections);
1230TPG_PARAM_ATTR(MaxConnections, S_IRUGO | S_IWUSR);
1231
1232DEF_TPG_PARAM(TargetAlias);
1233TPG_PARAM_ATTR(TargetAlias, S_IRUGO | S_IWUSR);
1234
1235DEF_TPG_PARAM(InitialR2T);
1236TPG_PARAM_ATTR(InitialR2T, S_IRUGO | S_IWUSR);
1237
1238DEF_TPG_PARAM(ImmediateData);
1239TPG_PARAM_ATTR(ImmediateData, S_IRUGO | S_IWUSR);
1240
1241DEF_TPG_PARAM(MaxRecvDataSegmentLength);
1242TPG_PARAM_ATTR(MaxRecvDataSegmentLength, S_IRUGO | S_IWUSR);
1243
e004cb25
NB		 1244DEF_TPG_PARAM(MaxXmitDataSegmentLength);
1245TPG_PARAM_ATTR(MaxXmitDataSegmentLength, S_IRUGO | S_IWUSR);
1246
e48354ce
NB		 1247DEF_TPG_PARAM(MaxBurstLength);
1248TPG_PARAM_ATTR(MaxBurstLength, S_IRUGO | S_IWUSR);
1249
1250DEF_TPG_PARAM(FirstBurstLength);
1251TPG_PARAM_ATTR(FirstBurstLength, S_IRUGO | S_IWUSR);
1252
1253DEF_TPG_PARAM(DefaultTime2Wait);
1254TPG_PARAM_ATTR(DefaultTime2Wait, S_IRUGO | S_IWUSR);
1255
1256DEF_TPG_PARAM(DefaultTime2Retain);
1257TPG_PARAM_ATTR(DefaultTime2Retain, S_IRUGO | S_IWUSR);
1258
1259DEF_TPG_PARAM(MaxOutstandingR2T);
1260TPG_PARAM_ATTR(MaxOutstandingR2T, S_IRUGO | S_IWUSR);
1261
1262DEF_TPG_PARAM(DataPDUInOrder);
1263TPG_PARAM_ATTR(DataPDUInOrder, S_IRUGO | S_IWUSR);
1264
1265DEF_TPG_PARAM(DataSequenceInOrder);
1266TPG_PARAM_ATTR(DataSequenceInOrder, S_IRUGO | S_IWUSR);
1267
1268DEF_TPG_PARAM(ErrorRecoveryLevel);
1269TPG_PARAM_ATTR(ErrorRecoveryLevel, S_IRUGO | S_IWUSR);
1270
1271DEF_TPG_PARAM(IFMarker);
1272TPG_PARAM_ATTR(IFMarker, S_IRUGO | S_IWUSR);
1273
1274DEF_TPG_PARAM(OFMarker);
1275TPG_PARAM_ATTR(OFMarker, S_IRUGO | S_IWUSR);
1276
1277DEF_TPG_PARAM(IFMarkInt);
1278TPG_PARAM_ATTR(IFMarkInt, S_IRUGO | S_IWUSR);
1279
1280DEF_TPG_PARAM(OFMarkInt);
1281TPG_PARAM_ATTR(OFMarkInt, S_IRUGO | S_IWUSR);
1282
1283static struct configfs_attribute *lio_target_tpg_param_attrs[] = {
1284 &iscsi_tpg_param_AuthMethod.attr,
1285 &iscsi_tpg_param_HeaderDigest.attr,
1286 &iscsi_tpg_param_DataDigest.attr,
1287 &iscsi_tpg_param_MaxConnections.attr,
1288 &iscsi_tpg_param_TargetAlias.attr,
1289 &iscsi_tpg_param_InitialR2T.attr,
1290 &iscsi_tpg_param_ImmediateData.attr,
1291 &iscsi_tpg_param_MaxRecvDataSegmentLength.attr,
e004cb25 1292 &iscsi_tpg_param_MaxXmitDataSegmentLength.attr,
e48354ce
NB		 1293 &iscsi_tpg_param_MaxBurstLength.attr,
1294 &iscsi_tpg_param_FirstBurstLength.attr,
1295 &iscsi_tpg_param_DefaultTime2Wait.attr,
1296 &iscsi_tpg_param_DefaultTime2Retain.attr,
1297 &iscsi_tpg_param_MaxOutstandingR2T.attr,
1298 &iscsi_tpg_param_DataPDUInOrder.attr,
1299 &iscsi_tpg_param_DataSequenceInOrder.attr,
1300 &iscsi_tpg_param_ErrorRecoveryLevel.attr,
1301 &iscsi_tpg_param_IFMarker.attr,
1302 &iscsi_tpg_param_OFMarker.attr,
1303 &iscsi_tpg_param_IFMarkInt.attr,
1304 &iscsi_tpg_param_OFMarkInt.attr,
1305 NULL,
1306};
1307
1308/* End items for lio_target_tpg_param_cit */
1309
1310/* Start items for lio_target_tpg_cit */
1311
1312static ssize_t lio_target_tpg_show_enable(
1313 struct se_portal_group *se_tpg,
1314 char *page)
1315{
1316 struct iscsi_portal_group *tpg = container_of(se_tpg,
1317 struct iscsi_portal_group, tpg_se_tpg);
1318 ssize_t len;
1319
1320 spin_lock(&tpg->tpg_state_lock);
1321 len = sprintf(page, "%d\n",
1322 (tpg->tpg_state == TPG_STATE_ACTIVE) ? 1 : 0);
1323 spin_unlock(&tpg->tpg_state_lock);
1324
1325 return len;
1326}
1327
1328static ssize_t lio_target_tpg_store_enable(
1329 struct se_portal_group *se_tpg,
1330 const char *page,
1331 size_t count)
1332{
1333 struct iscsi_portal_group *tpg = container_of(se_tpg,
1334 struct iscsi_portal_group, tpg_se_tpg);
e48354ce 1335 u32 op;
ad7babd2 1336 int ret;
e48354ce 1337
ad7babd2
JE		 1338 ret = kstrtou32(page, 0, &op);
1339 if (ret)
1340 return ret;
e48354ce
NB		 1341 if ((op != 1) && (op != 0)) {
1342 pr_err("Illegal value for tpg_enable: %u\n", op);
1343 return -EINVAL;
1344 }
1345
1346 ret = iscsit_get_tpg(tpg);
1347 if (ret < 0)
1348 return -EINVAL;
1349
1350 if (op) {
1351 ret = iscsit_tpg_enable_portal_group(tpg);
1352 if (ret < 0)
1353 goto out;
1354 } else {
1355 /*
1356 * iscsit_tpg_disable_portal_group() assumes force=1
1357 */
1358 ret = iscsit_tpg_disable_portal_group(tpg, 1);
1359 if (ret < 0)
1360 goto out;
1361 }
1362
1363 iscsit_put_tpg(tpg);
1364 return count;
1365out:
1366 iscsit_put_tpg(tpg);
1367 return -EINVAL;
1368}
1369
1370TF_TPG_BASE_ATTR(lio_target, enable, S_IRUGO | S_IWUSR);
1371
d4ee46ff
NB		 1372static ssize_t lio_target_tpg_show_dynamic_sessions(
1373 struct se_portal_group *se_tpg,
1374 char *page)
1375{
1376 return target_show_dynamic_sessions(se_tpg, page);
1377}
1378
1379TF_TPG_BASE_ATTR_RO(lio_target, dynamic_sessions);
1380
e48354ce
NB		 1381static struct configfs_attribute *lio_target_tpg_attrs[] = {
1382 &lio_target_tpg_enable.attr,
d4ee46ff 1383 &lio_target_tpg_dynamic_sessions.attr,
e48354ce
NB		 1384 NULL,
1385};
1386
1387/* End items for lio_target_tpg_cit */
1388
1389/* Start items for lio_target_tiqn_cit */
1390
fceb5bc7 1391static struct se_portal_group *lio_target_tiqn_addtpg(
e48354ce
NB		 1392 struct se_wwn *wwn,
1393 struct config_group *group,
1394 const char *name)
1395{
1396 struct iscsi_portal_group *tpg;
1397 struct iscsi_tiqn *tiqn;
ad7babd2
JE		 1398 char *tpgt_str;
1399 int ret;
1400 u16 tpgt;
e48354ce
NB		 1401
1402 tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
1403 /*
1404 * Only tpgt_# directory groups can be created below
1405 * target/iscsi/iqn.superturodiskarry/
ad7babd2 1406 */
e48354ce
NB		 1407 tpgt_str = strstr(name, "tpgt_");
1408 if (!tpgt_str) {
1409 pr_err("Unable to locate \"tpgt_#\" directory"
1410 " group\n");
1411 return NULL;
1412 }
1413 tpgt_str += 5; /* Skip ahead of "tpgt_" */
ad7babd2
JE		 1414 ret = kstrtou16(tpgt_str, 0, &tpgt);
1415 if (ret)
1416 return NULL;
e48354ce
NB		 1417
1418 tpg = iscsit_alloc_portal_group(tiqn, tpgt);
1419 if (!tpg)
1420 return NULL;
1421
9ac8928e 1422 ret = core_tpg_register(&iscsi_ops, wwn, &tpg->tpg_se_tpg,
e4aae5af 1423 SCSI_PROTOCOL_ISCSI);
e48354ce
NB		 1424 if (ret < 0)
1425 return NULL;
1426
1427 ret = iscsit_tpg_add_portal_group(tiqn, tpg);
1428 if (ret != 0)
1429 goto out;
1430
1431 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn);
1432 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated TPG: %s\n",
1433 name);
1434 return &tpg->tpg_se_tpg;
1435out:
1436 core_tpg_deregister(&tpg->tpg_se_tpg);
1437 kfree(tpg);
1438 return NULL;
1439}
1440
fceb5bc7 1441static void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg)
e48354ce
NB		 1442{
1443 struct iscsi_portal_group *tpg;
1444 struct iscsi_tiqn *tiqn;
1445
1446 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
1447 tiqn = tpg->tpg_tiqn;
1448 /*
1449 * iscsit_tpg_del_portal_group() assumes force=1
1450 */
1451 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> Releasing TPG\n");
1452 iscsit_tpg_del_portal_group(tiqn, tpg, 1);
1453}
1454
1455/* End items for lio_target_tiqn_cit */
1456
1457/* Start LIO-Target TIQN struct contig_item lio_target_cit */
1458
1459static ssize_t lio_target_wwn_show_attr_lio_version(
1460 struct target_fabric_configfs *tf,
1461 char *page)
1462{
4c76251e 1463 return sprintf(page, "Datera Inc. iSCSI Target "ISCSIT_VERSION"\n");
e48354ce
NB		 1464}
1465
1466TF_WWN_ATTR_RO(lio_target, lio_version);
1467
1468static struct configfs_attribute *lio_target_wwn_attrs[] = {
1469 &lio_target_wwn_lio_version.attr,
1470 NULL,
1471};
1472
fceb5bc7 1473static struct se_wwn *lio_target_call_coreaddtiqn(
e48354ce
NB		 1474 struct target_fabric_configfs *tf,
1475 struct config_group *group,
1476 const char *name)
1477{
1478 struct config_group *stats_cg;
1479 struct iscsi_tiqn *tiqn;
1480
1481 tiqn = iscsit_add_tiqn((unsigned char *)name);
1482 if (IS_ERR(tiqn))
e1750ba2 1483 return ERR_CAST(tiqn);
e48354ce
NB		 1484 /*
1485 * Setup struct iscsi_wwn_stat_grps for se_wwn->fabric_stat_group.
1486 */
1487 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group;
1488
13f6a914 1489 stats_cg->default_groups = kmalloc(sizeof(struct config_group *) * 6,
e48354ce
NB		 1490 GFP_KERNEL);
1491 if (!stats_cg->default_groups) {
1492 pr_err("Unable to allocate memory for"
1493 " stats_cg->default_groups\n");
1494 iscsit_del_tiqn(tiqn);
1495 return ERR_PTR(-ENOMEM);
1496 }
1497
b7eec2cd
AG		 1498 stats_cg->default_groups[0] = &tiqn->tiqn_stat_grps.iscsi_instance_group;
1499 stats_cg->default_groups[1] = &tiqn->tiqn_stat_grps.iscsi_sess_err_group;
1500 stats_cg->default_groups[2] = &tiqn->tiqn_stat_grps.iscsi_tgt_attr_group;
1501 stats_cg->default_groups[3] = &tiqn->tiqn_stat_grps.iscsi_login_stats_group;
1502 stats_cg->default_groups[4] = &tiqn->tiqn_stat_grps.iscsi_logout_stats_group;
e48354ce 1503 stats_cg->default_groups[5] = NULL;
b7eec2cd 1504 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_instance_group,
e48354ce 1505 "iscsi_instance", &iscsi_stat_instance_cit);
b7eec2cd 1506 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_sess_err_group,
e48354ce 1507 "iscsi_sess_err", &iscsi_stat_sess_err_cit);
b7eec2cd 1508 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_tgt_attr_group,
e48354ce 1509 "iscsi_tgt_attr", &iscsi_stat_tgt_attr_cit);
b7eec2cd 1510 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_login_stats_group,
e48354ce 1511 "iscsi_login_stats", &iscsi_stat_login_cit);
b7eec2cd 1512 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_logout_stats_group,
e48354ce
NB		 1513 "iscsi_logout_stats", &iscsi_stat_logout_cit);
1514
1515 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn);
1516 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated Node:"
1517 " %s\n", name);
1518 return &tiqn->tiqn_wwn;
1519}
1520
fceb5bc7 1521static void lio_target_call_coredeltiqn(
e48354ce
NB		 1522 struct se_wwn *wwn)
1523{
1524 struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
1525 struct config_item *df_item;
1526 struct config_group *stats_cg;
1527 int i;
1528
1529 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group;
1530 for (i = 0; stats_cg->default_groups[i]; i++) {
1531 df_item = &stats_cg->default_groups[i]->cg_item;
1532 stats_cg->default_groups[i] = NULL;
1533 config_item_put(df_item);
1534 }
1535 kfree(stats_cg->default_groups);
1536
1537 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s\n",
1538 tiqn->tiqn);
1539 iscsit_del_tiqn(tiqn);
1540}
1541
1542/* End LIO-Target TIQN struct contig_lio_target_cit */
1543
1544/* Start lio_target_discovery_auth_cit */
1545
1546#define DEF_DISC_AUTH_STR(name, flags) \
1547 __DEF_NACL_AUTH_STR(disc, name, flags) \
1548static ssize_t iscsi_disc_show_##name( \
1549 struct target_fabric_configfs *tf, \
1550 char *page) \
1551{ \
1552 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \
1553 page); \
1554} \
1555static ssize_t iscsi_disc_store_##name( \
1556 struct target_fabric_configfs *tf, \
1557 const char *page, \
1558 size_t count) \
1559{ \
1560 return __iscsi_disc_store_##name(&iscsit_global->discovery_acl, \
1561 page, count); \
1562}
1563
1564#define DEF_DISC_AUTH_INT(name) \
1565 __DEF_NACL_AUTH_INT(disc, name) \
1566static ssize_t iscsi_disc_show_##name( \
1567 struct target_fabric_configfs *tf, \
1568 char *page) \
1569{ \
1570 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \
1571 page); \
1572}
1573
1574#define DISC_AUTH_ATTR(_name, _mode) TF_DISC_ATTR(iscsi, _name, _mode)
1575#define DISC_AUTH_ATTR_RO(_name) TF_DISC_ATTR_RO(iscsi, _name)
1576
1577/*
1578 * One-way authentication userid
1579 */
1580DEF_DISC_AUTH_STR(userid, NAF_USERID_SET);
1581DISC_AUTH_ATTR(userid, S_IRUGO | S_IWUSR);
1582/*
1583 * One-way authentication password
1584 */
1585DEF_DISC_AUTH_STR(password, NAF_PASSWORD_SET);
1586DISC_AUTH_ATTR(password, S_IRUGO | S_IWUSR);
1587/*
1588 * Enforce mutual authentication
1589 */
1590DEF_DISC_AUTH_INT(authenticate_target);
1591DISC_AUTH_ATTR_RO(authenticate_target);
1592/*
1593 * Mutual authentication userid
1594 */
1595DEF_DISC_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
1596DISC_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR);
1597/*
1598 * Mutual authentication password
1599 */
1600DEF_DISC_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
1601DISC_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR);
1602
1603/*
1604 * enforce_discovery_auth
1605 */
1606static ssize_t iscsi_disc_show_enforce_discovery_auth(
1607 struct target_fabric_configfs *tf,
1608 char *page)
1609{
1610 struct iscsi_node_auth *discovery_auth = &iscsit_global->discovery_acl.node_auth;
1611
1612 return sprintf(page, "%d\n", discovery_auth->enforce_discovery_auth);
1613}
1614
1615static ssize_t iscsi_disc_store_enforce_discovery_auth(
1616 struct target_fabric_configfs *tf,
1617 const char *page,
1618 size_t count)
1619{
1620 struct iscsi_param *param;
1621 struct iscsi_portal_group *discovery_tpg = iscsit_global->discovery_tpg;
e48354ce 1622 u32 op;
ad7babd2 1623 int err;
e48354ce 1624
ad7babd2
JE		 1625 err = kstrtou32(page, 0, &op);
1626 if (err)
1627 return -EINVAL;
e48354ce
NB		 1628 if ((op != 1) && (op != 0)) {
1629 pr_err("Illegal value for enforce_discovery_auth:"
1630 " %u\n", op);
1631 return -EINVAL;
1632 }
1633
1634 if (!discovery_tpg) {
1635 pr_err("iscsit_global->discovery_tpg is NULL\n");
1636 return -EINVAL;
1637 }
1638
1639 param = iscsi_find_param_from_key(AUTHMETHOD,
1640 discovery_tpg->param_list);
1641 if (!param)
1642 return -EINVAL;
1643
1644 if (op) {
1645 /*
1646 * Reset the AuthMethod key to CHAP.
1647 */
1648 if (iscsi_update_param_value(param, CHAP) < 0)
1649 return -EINVAL;
1650
1651 discovery_tpg->tpg_attrib.authentication = 1;
1652 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 1;
1653 pr_debug("LIO-CORE[0] Successfully enabled"
1654 " authentication enforcement for iSCSI"
1655 " Discovery TPG\n");
1656 } else {
1657 /*
1658 * Reset the AuthMethod key to CHAP,None
1659 */
1660 if (iscsi_update_param_value(param, "CHAP,None") < 0)
1661 return -EINVAL;
1662
1663 discovery_tpg->tpg_attrib.authentication = 0;
1664 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 0;
1665 pr_debug("LIO-CORE[0] Successfully disabled"
1666 " authentication enforcement for iSCSI"
1667 " Discovery TPG\n");
1668 }
1669
1670 return count;
1671}
1672
1673DISC_AUTH_ATTR(enforce_discovery_auth, S_IRUGO | S_IWUSR);
1674
1675static struct configfs_attribute *lio_target_discovery_auth_attrs[] = {
1676 &iscsi_disc_userid.attr,
1677 &iscsi_disc_password.attr,
1678 &iscsi_disc_authenticate_target.attr,
1679 &iscsi_disc_userid_mutual.attr,
1680 &iscsi_disc_password_mutual.attr,
1681 &iscsi_disc_enforce_discovery_auth.attr,
1682 NULL,
1683};
1684
1685/* End lio_target_discovery_auth_cit */
1686
1687/* Start functions for target_core_fabric_ops */
1688
1689static char *iscsi_get_fabric_name(void)
1690{
1691 return "iSCSI";
1692}
1693
e48354ce
NB		 1694static int iscsi_get_cmd_state(struct se_cmd *se_cmd)
1695{
1696 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1697
1698 return cmd->i_state;
1699}
1700
e48354ce
NB		 1701static u32 lio_sess_get_index(struct se_session *se_sess)
1702{
1703 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1704
1705 return sess->session_index;
1706}
1707
1708static u32 lio_sess_get_initiator_sid(
1709 struct se_session *se_sess,
1710 unsigned char *buf,
1711 u32 size)
1712{
1713 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1714 /*
1715 * iSCSI Initiator Session Identifier from RFC-3720.
1716 */
5cdf5a87 1717 return snprintf(buf, size, "%6phN", sess->isid);
e48354ce
NB		 1718}
1719
1720static int lio_queue_data_in(struct se_cmd *se_cmd)
1721{
1722 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1723
1724 cmd->i_state = ISTATE_SEND_DATAIN;
2ec5a8c1
NB		 1725 cmd->conn->conn_transport->iscsit_queue_data_in(cmd->conn, cmd);
1726
e48354ce
NB		 1727 return 0;
1728}
1729
1730static int lio_write_pending(struct se_cmd *se_cmd)
1731{
1732 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
3e1c81a9 1733 struct iscsi_conn *conn = cmd->conn;
e48354ce
NB		 1734
1735 if (!cmd->immediate_data && !cmd->unsolicited_data)
3e1c81a9 1736 return conn->conn_transport->iscsit_get_dataout(conn, cmd, false);
e48354ce
NB		 1737
1738 return 0;
1739}
1740
1741static int lio_write_pending_status(struct se_cmd *se_cmd)
1742{
1743 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1744 int ret;
1745
1746 spin_lock_bh(&cmd->istate_lock);
1747 ret = !(cmd->cmd_flags & ICF_GOT_LAST_DATAOUT);
1748 spin_unlock_bh(&cmd->istate_lock);
1749
1750 return ret;
1751}
1752
1753static int lio_queue_status(struct se_cmd *se_cmd)
1754{
1755 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1756
1757 cmd->i_state = ISTATE_SEND_STATUS;
5e8e6b4b
NB		 1758
1759 if (cmd->se_cmd.scsi_status || cmd->sense_reason) {
1760 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
1761 return 0;
1762 }
2ec5a8c1
NB		 1763 cmd->conn->conn_transport->iscsit_queue_status(cmd->conn, cmd);
1764
e48354ce
NB		 1765 return 0;
1766}
1767
b79fafac 1768static void lio_queue_tm_rsp(struct se_cmd *se_cmd)
e48354ce
NB		 1769{
1770 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1771
1772 cmd->i_state = ISTATE_SEND_TASKMGTRSP;
1773 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
e48354ce
NB		 1774}
1775
131e6abc
NB		 1776static void lio_aborted_task(struct se_cmd *se_cmd)
1777{
1778 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1779
1780 cmd->conn->conn_transport->iscsit_aborted_task(cmd->conn, cmd);
1781}
1782
2b6eb609 1783static inline struct iscsi_portal_group *iscsi_tpg(struct se_portal_group *se_tpg)
e48354ce 1784{
2b6eb609
CH		 1785 return container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
1786}
e48354ce 1787
2b6eb609
CH		 1788static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg)
1789{
1790 return iscsi_tpg(se_tpg)->tpg_tiqn->tiqn;
e48354ce
NB		 1791}
1792
1793static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg)
1794{
2b6eb609 1795 return iscsi_tpg(se_tpg)->tpgt;
e48354ce
NB		 1796}
1797
1798static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg)
1799{
2b6eb609 1800 return iscsi_tpg(se_tpg)->tpg_attrib.default_cmdsn_depth;
e48354ce
NB		 1801}
1802
1803static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg)
1804{
2b6eb609 1805 return iscsi_tpg(se_tpg)->tpg_attrib.generate_node_acls;
e48354ce
NB		 1806}
1807
1808static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg)
1809{
2b6eb609 1810 return iscsi_tpg(se_tpg)->tpg_attrib.cache_dynamic_acls;
e48354ce
NB		 1811}
1812
1813static int lio_tpg_check_demo_mode_write_protect(
1814 struct se_portal_group *se_tpg)
1815{
2b6eb609 1816 return iscsi_tpg(se_tpg)->tpg_attrib.demo_mode_write_protect;
e48354ce
NB		 1817}
1818
1819static int lio_tpg_check_prod_mode_write_protect(
1820 struct se_portal_group *se_tpg)
1821{
2b6eb609 1822 return iscsi_tpg(se_tpg)->tpg_attrib.prod_mode_write_protect;
e48354ce
NB		 1823}
1824
901c04a3
NB		 1825static int lio_tpg_check_prot_fabric_only(
1826 struct se_portal_group *se_tpg)
1827{
901c04a3
NB		 1828 /*
1829 * Only report fabric_prot_type if t10_pi has also been enabled
1830 * for incoming ib_isert sessions.
1831 */
2b6eb609 1832 if (!iscsi_tpg(se_tpg)->tpg_attrib.t10_pi)
901c04a3 1833 return 0;
2b6eb609 1834 return iscsi_tpg(se_tpg)->tpg_attrib.fabric_prot_type;
901c04a3
NB		 1835}
1836
e48354ce
NB		 1837/*
1838 * Called with spin_lock_bh(struct se_portal_group->session_lock) held..
1839 *
1840 * Also, this function calls iscsit_inc_session_usage_count() on the
1841 * struct iscsi_session in question.
1842 */
1843static int lio_tpg_shutdown_session(struct se_session *se_sess)
1844{
1845 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1846
1847 spin_lock(&sess->conn_lock);
1848 if (atomic_read(&sess->session_fall_back_to_erl0) ||
1849 atomic_read(&sess->session_logout) ||
1850 (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) {
1851 spin_unlock(&sess->conn_lock);
1852 return 0;
1853 }
1854 atomic_set(&sess->session_reinstatement, 1);
1855 spin_unlock(&sess->conn_lock);
1856
e48354ce 1857 iscsit_stop_time2retain_timer(sess);
99367f01 1858 iscsit_stop_session(sess, 1, 1);
e48354ce
NB		 1859
1860 return 1;
1861}
1862
1863/*
1864 * Calls iscsit_dec_session_usage_count() as inverse of
1865 * lio_tpg_shutdown_session()
1866 */
1867static void lio_tpg_close_session(struct se_session *se_sess)
1868{
1869 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1870 /*
1871 * If the iSCSI Session for the iSCSI Initiator Node exists,
1872 * forcefully shutdown the iSCSI NEXUS.
1873 */
e48354ce
NB		 1874 iscsit_close_session(sess);
1875}
1876
e48354ce
NB		 1877static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg)
1878{
2b6eb609 1879 return iscsi_tpg(se_tpg)->tpg_tiqn->tiqn_index;
e48354ce
NB		 1880}
1881
1882static void lio_set_default_node_attributes(struct se_node_acl *se_acl)
1883{
1884 struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl,
1885 se_node_acl);
d1fa7a1d
NB		 1886 struct se_portal_group *se_tpg = se_acl->se_tpg;
1887 struct iscsi_portal_group *tpg = container_of(se_tpg,
1888 struct iscsi_portal_group, tpg_se_tpg);
e48354ce 1889
b7eec2cd 1890 acl->node_attrib.nacl = acl;
d1fa7a1d 1891 iscsit_set_default_node_attribues(acl, tpg);
e48354ce
NB		 1892}
1893
3e1c81a9
NB		 1894static int lio_check_stop_free(struct se_cmd *se_cmd)
1895{
afc16604 1896 return target_put_sess_cmd(se_cmd);
3e1c81a9
NB		 1897}
1898
e48354ce
NB		 1899static void lio_release_cmd(struct se_cmd *se_cmd)
1900{
1901 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1902
cdb72665 1903 pr_debug("Entering lio_release_cmd for se_cmd: %p\n", se_cmd);
d703ce2f 1904 iscsit_release_cmd(cmd);
e48354ce
NB		 1905}
1906
9ac8928e
CH		 1907const struct target_core_fabric_ops iscsi_ops = {
1908 .module = THIS_MODULE,
1909 .name = "iscsi",
144bc4c2 1910 .node_acl_size = sizeof(struct iscsi_node_acl),
9ac8928e 1911 .get_fabric_name = iscsi_get_fabric_name,
9ac8928e
CH		 1912 .tpg_get_wwn = lio_tpg_get_endpoint_wwn,
1913 .tpg_get_tag = lio_tpg_get_tag,
1914 .tpg_get_default_depth = lio_tpg_get_default_depth,
9ac8928e
CH		 1915 .tpg_check_demo_mode = lio_tpg_check_demo_mode,
1916 .tpg_check_demo_mode_cache = lio_tpg_check_demo_mode_cache,
1917 .tpg_check_demo_mode_write_protect =
1918 lio_tpg_check_demo_mode_write_protect,
1919 .tpg_check_prod_mode_write_protect =
1920 lio_tpg_check_prod_mode_write_protect,
1921 .tpg_check_prot_fabric_only = &lio_tpg_check_prot_fabric_only,
9ac8928e
CH		 1922 .tpg_get_inst_index = lio_tpg_get_inst_index,
1923 .check_stop_free = lio_check_stop_free,
1924 .release_cmd = lio_release_cmd,
1925 .shutdown_session = lio_tpg_shutdown_session,
1926 .close_session = lio_tpg_close_session,
1927 .sess_get_index = lio_sess_get_index,
1928 .sess_get_initiator_sid = lio_sess_get_initiator_sid,
1929 .write_pending = lio_write_pending,
1930 .write_pending_status = lio_write_pending_status,
1931 .set_default_node_attributes = lio_set_default_node_attributes,
9ac8928e
CH		 1932 .get_cmd_state = iscsi_get_cmd_state,
1933 .queue_data_in = lio_queue_data_in,
1934 .queue_status = lio_queue_status,
1935 .queue_tm_rsp = lio_queue_tm_rsp,
1936 .aborted_task = lio_aborted_task,
1937 .fabric_make_wwn = lio_target_call_coreaddtiqn,
1938 .fabric_drop_wwn = lio_target_call_coredeltiqn,
1939 .fabric_make_tpg = lio_target_tiqn_addtpg,
1940 .fabric_drop_tpg = lio_target_tiqn_deltpg,
1941 .fabric_make_np = lio_target_call_addnptotpg,
1942 .fabric_drop_np = lio_target_call_delnpfromtpg,
c7d6a803
CH		 1943 .fabric_init_nodeacl = lio_target_init_nodeacl,
1944 .fabric_cleanup_nodeacl = lio_target_cleanup_nodeacl,
9ac8928e
CH		 1945
1946 .tfc_discovery_attrs = lio_target_discovery_auth_attrs,
1947 .tfc_wwn_attrs = lio_target_wwn_attrs,
1948 .tfc_tpg_base_attrs = lio_target_tpg_attrs,
1949 .tfc_tpg_attrib_attrs = lio_target_tpg_attrib_attrs,
1950 .tfc_tpg_auth_attrs = lio_target_tpg_auth_attrs,
1951 .tfc_tpg_param_attrs = lio_target_tpg_param_attrs,
1952 .tfc_tpg_np_base_attrs = lio_target_portal_attrs,
1953 .tfc_tpg_nacl_base_attrs = lio_target_initiator_attrs,
1954 .tfc_tpg_nacl_attrib_attrs = lio_target_nacl_attrib_attrs,
1955 .tfc_tpg_nacl_auth_attrs = lio_target_nacl_auth_attrs,
1956 .tfc_tpg_nacl_param_attrs = lio_target_nacl_param_attrs,
1957};
Linux kernel - Deliverables
This page took 0.299633 seconds and 5 git commands to generate.