projects / linux-2.6-block.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
target/iscsi: Fix op=disable + error handling cases in np_store_iser
[linux-2.6-block.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 *
5 * \u00a9 Copyright 2007-2011 RisingTide Systems LLC.
6 *
7 * Licensed to the Linux Foundation under the General Public License (GPL) version 2.
8 *
9 * Author: Nicholas A. Bellinger <nab@linux-iscsi.org>
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 ****************************************************************************/
21
22#include <linux/configfs.h>
c53181af 23#include <linux/export.h>
c3bc93da 24#include <linux/inet.h>
e48354ce 25#include <target/target_core_base.h>
c4795fb2 26#include <target/target_core_fabric.h>
e48354ce 27#include <target/target_core_fabric_configfs.h>
e48354ce
NB		 28#include <target/target_core_configfs.h>
29#include <target/configfs_macros.h>
2ec5a8c1 30#include <target/iscsi/iscsi_transport.h>
e48354ce
NB		 31
32#include "iscsi_target_core.h"
33#include "iscsi_target_parameters.h"
34#include "iscsi_target_device.h"
35#include "iscsi_target_erl0.h"
36#include "iscsi_target_nodeattrib.h"
37#include "iscsi_target_tpg.h"
38#include "iscsi_target_util.h"
39#include "iscsi_target.h"
40#include "iscsi_target_stat.h"
41#include "iscsi_target_configfs.h"
42
43struct target_fabric_configfs *lio_target_fabric_configfs;
44
45struct lio_target_configfs_attribute {
46 struct configfs_attribute attr;
47 ssize_t (*show)(void *, char *);
48 ssize_t (*store)(void *, const char *, size_t);
49};
50
e48354ce
NB		 51/* Start items for lio_target_portal_cit */
52
53static ssize_t lio_target_np_show_sctp(
54 struct se_tpg_np *se_tpg_np,
55 char *page)
56{
57 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np,
58 struct iscsi_tpg_np, se_tpg_np);
59 struct iscsi_tpg_np *tpg_np_sctp;
60 ssize_t rb;
61
62 tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP);
63 if (tpg_np_sctp)
64 rb = sprintf(page, "1\n");
65 else
66 rb = sprintf(page, "0\n");
67
68 return rb;
69}
70
71static ssize_t lio_target_np_store_sctp(
72 struct se_tpg_np *se_tpg_np,
73 const char *page,
74 size_t count)
75{
76 struct iscsi_np *np;
77 struct iscsi_portal_group *tpg;
78 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np,
79 struct iscsi_tpg_np, se_tpg_np);
80 struct iscsi_tpg_np *tpg_np_sctp = NULL;
81 char *endptr;
82 u32 op;
83 int ret;
84
85 op = simple_strtoul(page, &endptr, 0);
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;
121out:
122 iscsit_put_tpg(tpg);
123 return -EINVAL;
124}
125
126TF_NP_BASE_ATTR(lio_target, sctp, S_IRUGO | S_IWUSR);
127
72438cdd
NB		 128static 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
146static 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;
58bd0c69 158 int rc = 0;
72438cdd
NB		 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) {
58bd0c69
AG		 177 rc = request_module("ib_isert");
178 if (rc != 0) {
72438cdd 179 pr_warn("Unable to request_module for ib_isert\n");
58bd0c69
AG		 180 rc = 0;
181 }
72438cdd
NB		 182
183 tpg_np_iser = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr,
184 np->np_ip, tpg_np, ISCSI_INFINIBAND);
58bd0c69
AG		 185 if (IS_ERR(tpg_np_iser)) {
186 rc = PTR_ERR(tpg_np_iser);
72438cdd 187 goto out;
58bd0c69 188 }
72438cdd
NB		 189 } else {
190 tpg_np_iser = iscsit_tpg_locate_child_np(tpg_np, ISCSI_INFINIBAND);
58bd0c69
AG		 191 if (tpg_np_iser) {
192 rc = iscsit_tpg_del_network_portal(tpg, tpg_np_iser);
193 if (rc < 0)
194 goto out;
195 }
72438cdd
NB		 196 }
197
198 printk("lio_target_np_store_iser() done, op: %d\n", op);
199
200 iscsit_put_tpg(tpg);
201 return count;
202out:
203 iscsit_put_tpg(tpg);
58bd0c69 204 return rc;
72438cdd
NB		 205}
206
207TF_NP_BASE_ATTR(lio_target, iser, S_IRUGO | S_IWUSR);
208
e48354ce
NB		 209static struct configfs_attribute *lio_target_portal_attrs[] = {
210 &lio_target_np_sctp.attr,
72438cdd 211 &lio_target_np_iser.attr,
e48354ce
NB		 212 NULL,
213};
214
215/* Stop items for lio_target_portal_cit */
216
217/* Start items for lio_target_np_cit */
218
219#define MAX_PORTAL_LEN 256
220
fceb5bc7 221static struct se_tpg_np *lio_target_call_addnptotpg(
e48354ce
NB		 222 struct se_portal_group *se_tpg,
223 struct config_group *group,
224 const char *name)
225{
226 struct iscsi_portal_group *tpg;
227 struct iscsi_tpg_np *tpg_np;
228 char *str, *str2, *ip_str, *port_str;
229 struct __kernel_sockaddr_storage sockaddr;
230 struct sockaddr_in *sock_in;
231 struct sockaddr_in6 *sock_in6;
232 unsigned long port;
233 int ret;
234 char buf[MAX_PORTAL_LEN + 1];
235
236 if (strlen(name) > MAX_PORTAL_LEN) {
237 pr_err("strlen(name): %d exceeds MAX_PORTAL_LEN: %d\n",
238 (int)strlen(name), MAX_PORTAL_LEN);
239 return ERR_PTR(-EOVERFLOW);
240 }
241 memset(buf, 0, MAX_PORTAL_LEN + 1);
7bbb654e 242 snprintf(buf, MAX_PORTAL_LEN + 1, "%s", name);
e48354ce
NB		 243
244 memset(&sockaddr, 0, sizeof(struct __kernel_sockaddr_storage));
245
246 str = strstr(buf, "[");
247 if (str) {
248 const char *end;
249
250 str2 = strstr(str, "]");
251 if (!str2) {
252 pr_err("Unable to locate trailing \"]\""
253 " in IPv6 iSCSI network portal address\n");
254 return ERR_PTR(-EINVAL);
255 }
256 str++; /* Skip over leading "[" */
257 *str2 = '\0'; /* Terminate the IPv6 address */
258 str2++; /* Skip over the "]" */
259 port_str = strstr(str2, ":");
260 if (!port_str) {
261 pr_err("Unable to locate \":port\""
262 " in IPv6 iSCSI network portal address\n");
263 return ERR_PTR(-EINVAL);
264 }
265 *port_str = '\0'; /* Terminate string for IP */
266 port_str++; /* Skip over ":" */
267
268 ret = strict_strtoul(port_str, 0, &port);
269 if (ret < 0) {
270 pr_err("strict_strtoul() failed for port_str: %d\n", ret);
271 return ERR_PTR(ret);
272 }
273 sock_in6 = (struct sockaddr_in6 *)&sockaddr;
274 sock_in6->sin6_family = AF_INET6;
275 sock_in6->sin6_port = htons((unsigned short)port);
276 ret = in6_pton(str, IPV6_ADDRESS_SPACE,
277 (void *)&sock_in6->sin6_addr.in6_u, -1, &end);
278 if (ret <= 0) {
279 pr_err("in6_pton returned: %d\n", ret);
280 return ERR_PTR(-EINVAL);
281 }
282 } else {
283 str = ip_str = &buf[0];
284 port_str = strstr(ip_str, ":");
285 if (!port_str) {
286 pr_err("Unable to locate \":port\""
287 " in IPv4 iSCSI network portal address\n");
288 return ERR_PTR(-EINVAL);
289 }
290 *port_str = '\0'; /* Terminate string for IP */
291 port_str++; /* Skip over ":" */
292
293 ret = strict_strtoul(port_str, 0, &port);
294 if (ret < 0) {
295 pr_err("strict_strtoul() failed for port_str: %d\n", ret);
296 return ERR_PTR(ret);
297 }
298 sock_in = (struct sockaddr_in *)&sockaddr;
299 sock_in->sin_family = AF_INET;
300 sock_in->sin_port = htons((unsigned short)port);
301 sock_in->sin_addr.s_addr = in_aton(ip_str);
302 }
303 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
304 ret = iscsit_get_tpg(tpg);
305 if (ret < 0)
306 return ERR_PTR(-EINVAL);
307
308 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s TPGT: %hu"
309 " PORTAL: %s\n",
310 config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item),
311 tpg->tpgt, name);
312 /*
313 * Assume ISCSI_TCP by default. Other network portals for other
314 * iSCSI fabrics:
315 *
316 * Traditional iSCSI over SCTP (initial support)
317 * iSER/TCP (TODO, hardware available)
318 * iSER/SCTP (TODO, software emulation with osc-iwarp)
319 * iSER/IB (TODO, hardware available)
320 *
20879696 321 * can be enabled with attributes under
e48354ce
NB		 322 * sys/kernel/config/iscsi/$IQN/$TPG/np/$IP:$PORT/
323 *
324 */
325 tpg_np = iscsit_tpg_add_network_portal(tpg, &sockaddr, str, NULL,
326 ISCSI_TCP);
327 if (IS_ERR(tpg_np)) {
328 iscsit_put_tpg(tpg);
e1750ba2 329 return ERR_CAST(tpg_np);
e48354ce
NB		 330 }
331 pr_debug("LIO_Target_ConfigFS: addnptotpg done!\n");
332
333 iscsit_put_tpg(tpg);
334 return &tpg_np->se_tpg_np;
335}
336
337static void lio_target_call_delnpfromtpg(
338 struct se_tpg_np *se_tpg_np)
339{
340 struct iscsi_portal_group *tpg;
341 struct iscsi_tpg_np *tpg_np;
342 struct se_portal_group *se_tpg;
343 int ret;
344
345 tpg_np = container_of(se_tpg_np, struct iscsi_tpg_np, se_tpg_np);
346 tpg = tpg_np->tpg;
347 ret = iscsit_get_tpg(tpg);
348 if (ret < 0)
349 return;
350
351 se_tpg = &tpg->tpg_se_tpg;
352 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s TPGT: %hu"
353 " PORTAL: %s:%hu\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item),
354 tpg->tpgt, tpg_np->tpg_np->np_ip, tpg_np->tpg_np->np_port);
355
356 ret = iscsit_tpg_del_network_portal(tpg, tpg_np);
357 if (ret < 0)
358 goto out;
359
360 pr_debug("LIO_Target_ConfigFS: delnpfromtpg done!\n");
361out:
362 iscsit_put_tpg(tpg);
363}
364
365/* End items for lio_target_np_cit */
366
367/* Start items for lio_target_nacl_attrib_cit */
368
369#define DEF_NACL_ATTRIB(name) \
370static ssize_t iscsi_nacl_attrib_show_##name( \
371 struct se_node_acl *se_nacl, \
372 char *page) \
373{ \
374 struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \
375 se_node_acl); \
376 \
377 return sprintf(page, "%u\n", ISCSI_NODE_ATTRIB(nacl)->name); \
378} \
379 \
380static ssize_t iscsi_nacl_attrib_store_##name( \
381 struct se_node_acl *se_nacl, \
382 const char *page, \
383 size_t count) \
384{ \
385 struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \
386 se_node_acl); \
387 char *endptr; \
388 u32 val; \
389 int ret; \
390 \
391 val = simple_strtoul(page, &endptr, 0); \
392 ret = iscsit_na_##name(nacl, val); \
393 if (ret < 0) \
394 return ret; \
395 \
396 return count; \
397}
398
399#define NACL_ATTR(_name, _mode) TF_NACL_ATTRIB_ATTR(iscsi, _name, _mode);
400/*
401 * Define iscsi_node_attrib_s_dataout_timeout
402 */
403DEF_NACL_ATTRIB(dataout_timeout);
404NACL_ATTR(dataout_timeout, S_IRUGO | S_IWUSR);
405/*
406 * Define iscsi_node_attrib_s_dataout_timeout_retries
407 */
408DEF_NACL_ATTRIB(dataout_timeout_retries);
409NACL_ATTR(dataout_timeout_retries, S_IRUGO | S_IWUSR);
410/*
411 * Define iscsi_node_attrib_s_default_erl
412 */
413DEF_NACL_ATTRIB(default_erl);
414NACL_ATTR(default_erl, S_IRUGO | S_IWUSR);
415/*
416 * Define iscsi_node_attrib_s_nopin_timeout
417 */
418DEF_NACL_ATTRIB(nopin_timeout);
419NACL_ATTR(nopin_timeout, S_IRUGO | S_IWUSR);
420/*
421 * Define iscsi_node_attrib_s_nopin_response_timeout
422 */
423DEF_NACL_ATTRIB(nopin_response_timeout);
424NACL_ATTR(nopin_response_timeout, S_IRUGO | S_IWUSR);
425/*
426 * Define iscsi_node_attrib_s_random_datain_pdu_offsets
427 */
428DEF_NACL_ATTRIB(random_datain_pdu_offsets);
429NACL_ATTR(random_datain_pdu_offsets, S_IRUGO | S_IWUSR);
430/*
431 * Define iscsi_node_attrib_s_random_datain_seq_offsets
432 */
433DEF_NACL_ATTRIB(random_datain_seq_offsets);
434NACL_ATTR(random_datain_seq_offsets, S_IRUGO | S_IWUSR);
435/*
436 * Define iscsi_node_attrib_s_random_r2t_offsets
437 */
438DEF_NACL_ATTRIB(random_r2t_offsets);
439NACL_ATTR(random_r2t_offsets, S_IRUGO | S_IWUSR);
440
441static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = {
442 &iscsi_nacl_attrib_dataout_timeout.attr,
443 &iscsi_nacl_attrib_dataout_timeout_retries.attr,
444 &iscsi_nacl_attrib_default_erl.attr,
445 &iscsi_nacl_attrib_nopin_timeout.attr,
446 &iscsi_nacl_attrib_nopin_response_timeout.attr,
447 &iscsi_nacl_attrib_random_datain_pdu_offsets.attr,
448 &iscsi_nacl_attrib_random_datain_seq_offsets.attr,
449 &iscsi_nacl_attrib_random_r2t_offsets.attr,
450 NULL,
451};
452
453/* End items for lio_target_nacl_attrib_cit */
454
455/* Start items for lio_target_nacl_auth_cit */
456
457#define __DEF_NACL_AUTH_STR(prefix, name, flags) \
458static ssize_t __iscsi_##prefix##_show_##name( \
459 struct iscsi_node_acl *nacl, \
460 char *page) \
461{ \
462 struct iscsi_node_auth *auth = &nacl->node_auth; \
463 \
464 if (!capable(CAP_SYS_ADMIN)) \
465 return -EPERM; \
466 return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \
467} \
468 \
469static ssize_t __iscsi_##prefix##_store_##name( \
470 struct iscsi_node_acl *nacl, \
471 const char *page, \
472 size_t count) \
473{ \
474 struct iscsi_node_auth *auth = &nacl->node_auth; \
475 \
476 if (!capable(CAP_SYS_ADMIN)) \
477 return -EPERM; \
478 \
479 snprintf(auth->name, PAGE_SIZE, "%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) \
495static 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) \
509static 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} \
516static 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) \
527static 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 */
541DEF_NACL_AUTH_STR(userid, NAF_USERID_SET);
542AUTH_ATTR(userid, S_IRUGO | S_IWUSR);
543/*
544 * One-way authentication password
545 */
546DEF_NACL_AUTH_STR(password, NAF_PASSWORD_SET);
547AUTH_ATTR(password, S_IRUGO | S_IWUSR);
548/*
549 * Enforce mutual authentication
550 */
551DEF_NACL_AUTH_INT(authenticate_target);
552AUTH_ATTR_RO(authenticate_target);
553/*
554 * Mutual authentication userid
555 */
556DEF_NACL_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
557AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR);
558/*
559 * Mutual authentication password
560 */
561DEF_NACL_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
562AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR);
563
564static 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) \
578static 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
603DEF_NACL_PARAM(MaxConnections);
604NACL_PARAM_ATTR(MaxConnections);
605
606DEF_NACL_PARAM(InitialR2T);
607NACL_PARAM_ATTR(InitialR2T);
608
609DEF_NACL_PARAM(ImmediateData);
610NACL_PARAM_ATTR(ImmediateData);
611
612DEF_NACL_PARAM(MaxBurstLength);
613NACL_PARAM_ATTR(MaxBurstLength);
614
615DEF_NACL_PARAM(FirstBurstLength);
616NACL_PARAM_ATTR(FirstBurstLength);
617
618DEF_NACL_PARAM(DefaultTime2Wait);
619NACL_PARAM_ATTR(DefaultTime2Wait);
620
621DEF_NACL_PARAM(DefaultTime2Retain);
622NACL_PARAM_ATTR(DefaultTime2Retain);
623
624DEF_NACL_PARAM(MaxOutstandingR2T);
625NACL_PARAM_ATTR(MaxOutstandingR2T);
626
627DEF_NACL_PARAM(DataPDUInOrder);
628NACL_PARAM_ATTR(DataPDUInOrder);
629
630DEF_NACL_PARAM(DataSequenceInOrder);
631NACL_PARAM_ATTR(DataSequenceInOrder);
632
633DEF_NACL_PARAM(ErrorRecoveryLevel);
634NACL_PARAM_ATTR(ErrorRecoveryLevel);
635
636static 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
655static 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
776TF_NACL_BASE_ATTR_RO(lio_target, info);
777
778static 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
785static 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 char *endptr;
795 u32 cmdsn_depth = 0;
796 int ret;
797
798 cmdsn_depth = simple_strtoul(page, &endptr, 0);
799 if (cmdsn_depth > TA_DEFAULT_CMDSN_DEPTH_MAX) {
800 pr_err("Passed cmdsn_depth: %u exceeds"
801 " TA_DEFAULT_CMDSN_DEPTH_MAX: %u\n", cmdsn_depth,
802 TA_DEFAULT_CMDSN_DEPTH_MAX);
803 return -EINVAL;
804 }
805 acl_ci = &se_nacl->acl_group.cg_item;
806 if (!acl_ci) {
807 pr_err("Unable to locatel acl_ci\n");
808 return -EINVAL;
809 }
810 tpg_ci = &acl_ci->ci_parent->ci_group->cg_item;
811 if (!tpg_ci) {
812 pr_err("Unable to locate tpg_ci\n");
813 return -EINVAL;
814 }
815 wwn_ci = &tpg_ci->ci_group->cg_item;
816 if (!wwn_ci) {
817 pr_err("Unable to locate config_item wwn_ci\n");
818 return -EINVAL;
819 }
820
821 if (iscsit_get_tpg(tpg) < 0)
822 return -EINVAL;
823 /*
824 * iscsit_tpg_set_initiator_node_queue_depth() assumes force=1
825 */
826 ret = iscsit_tpg_set_initiator_node_queue_depth(tpg,
827 config_item_name(acl_ci), cmdsn_depth, 1);
828
829 pr_debug("LIO_Target_ConfigFS: %s/%s Set CmdSN Window: %u for"
830 "InitiatorName: %s\n", config_item_name(wwn_ci),
831 config_item_name(tpg_ci), cmdsn_depth,
832 config_item_name(acl_ci));
833
834 iscsit_put_tpg(tpg);
835 return (!ret) ? count : (ssize_t)ret;
836}
837
838TF_NACL_BASE_ATTR(lio_target, cmdsn_depth, S_IRUGO | S_IWUSR);
839
79e62fc3
AG		 840static ssize_t lio_target_nacl_show_tag(
841 struct se_node_acl *se_nacl,
842 char *page)
843{
844 return snprintf(page, PAGE_SIZE, "%s", se_nacl->acl_tag);
845}
846
847static ssize_t lio_target_nacl_store_tag(
848 struct se_node_acl *se_nacl,
849 const char *page,
850 size_t count)
851{
852 int ret;
853
854 ret = core_tpg_set_initiator_node_tag(se_nacl->se_tpg, se_nacl, page);
855
856 if (ret < 0)
857 return ret;
858 return count;
859}
860
861TF_NACL_BASE_ATTR(lio_target, tag, S_IRUGO | S_IWUSR);
862
e48354ce
NB		 863static struct configfs_attribute *lio_target_initiator_attrs[] = {
864 &lio_target_nacl_info.attr,
865 &lio_target_nacl_cmdsn_depth.attr,
79e62fc3 866 &lio_target_nacl_tag.attr,
e48354ce
NB		 867 NULL,
868};
869
870static struct se_node_acl *lio_tpg_alloc_fabric_acl(
871 struct se_portal_group *se_tpg)
872{
873 struct iscsi_node_acl *acl;
874
875 acl = kzalloc(sizeof(struct iscsi_node_acl), GFP_KERNEL);
876 if (!acl) {
877 pr_err("Unable to allocate memory for struct iscsi_node_acl\n");
878 return NULL;
879 }
880
881 return &acl->se_node_acl;
882}
883
884static struct se_node_acl *lio_target_make_nodeacl(
885 struct se_portal_group *se_tpg,
886 struct config_group *group,
887 const char *name)
888{
889 struct config_group *stats_cg;
890 struct iscsi_node_acl *acl;
891 struct se_node_acl *se_nacl_new, *se_nacl;
892 struct iscsi_portal_group *tpg = container_of(se_tpg,
893 struct iscsi_portal_group, tpg_se_tpg);
894 u32 cmdsn_depth;
895
896 se_nacl_new = lio_tpg_alloc_fabric_acl(se_tpg);
897 if (!se_nacl_new)
898 return ERR_PTR(-ENOMEM);
899
e48354ce
NB		 900 cmdsn_depth = ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth;
901 /*
902 * se_nacl_new may be released by core_tpg_add_initiator_node_acl()
903 * when converting a NdoeACL from demo mode -> explict
904 */
905 se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new,
906 name, cmdsn_depth);
907 if (IS_ERR(se_nacl))
908 return se_nacl;
909
d0628334
NB		 910 acl = container_of(se_nacl, struct iscsi_node_acl, se_node_acl);
911 stats_cg = &se_nacl->acl_fabric_stat_group;
e48354ce 912
13f6a914 913 stats_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2,
e48354ce
NB		 914 GFP_KERNEL);
915 if (!stats_cg->default_groups) {
916 pr_err("Unable to allocate memory for"
917 " stats_cg->default_groups\n");
918 core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1);
919 kfree(acl);
920 return ERR_PTR(-ENOMEM);
921 }
922
923 stats_cg->default_groups[0] = &NODE_STAT_GRPS(acl)->iscsi_sess_stats_group;
924 stats_cg->default_groups[1] = NULL;
925 config_group_init_type_name(&NODE_STAT_GRPS(acl)->iscsi_sess_stats_group,
926 "iscsi_sess_stats", &iscsi_stat_sess_cit);
927
928 return se_nacl;
929}
930
931static void lio_target_drop_nodeacl(
932 struct se_node_acl *se_nacl)
933{
934 struct se_portal_group *se_tpg = se_nacl->se_tpg;
935 struct iscsi_node_acl *acl = container_of(se_nacl,
936 struct iscsi_node_acl, se_node_acl);
937 struct config_item *df_item;
938 struct config_group *stats_cg;
939 int i;
940
941 stats_cg = &acl->se_node_acl.acl_fabric_stat_group;
942 for (i = 0; stats_cg->default_groups[i]; i++) {
943 df_item = &stats_cg->default_groups[i]->cg_item;
944 stats_cg->default_groups[i] = NULL;
945 config_item_put(df_item);
946 }
947 kfree(stats_cg->default_groups);
948
949 core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1);
950 kfree(acl);
951}
952
953/* End items for lio_target_acl_cit */
954
955/* Start items for lio_target_tpg_attrib_cit */
956
957#define DEF_TPG_ATTRIB(name) \
958 \
959static ssize_t iscsi_tpg_attrib_show_##name( \
960 struct se_portal_group *se_tpg, \
961 char *page) \
962{ \
963 struct iscsi_portal_group *tpg = container_of(se_tpg, \
964 struct iscsi_portal_group, tpg_se_tpg); \
965 ssize_t rb; \
966 \
967 if (iscsit_get_tpg(tpg) < 0) \
968 return -EINVAL; \
969 \
970 rb = sprintf(page, "%u\n", ISCSI_TPG_ATTRIB(tpg)->name); \
971 iscsit_put_tpg(tpg); \
972 return rb; \
973} \
974 \
975static ssize_t iscsi_tpg_attrib_store_##name( \
976 struct se_portal_group *se_tpg, \
977 const char *page, \
978 size_t count) \
979{ \
980 struct iscsi_portal_group *tpg = container_of(se_tpg, \
981 struct iscsi_portal_group, tpg_se_tpg); \
982 char *endptr; \
983 u32 val; \
984 int ret; \
985 \
986 if (iscsit_get_tpg(tpg) < 0) \
987 return -EINVAL; \
988 \
989 val = simple_strtoul(page, &endptr, 0); \
990 ret = iscsit_ta_##name(tpg, val); \
991 if (ret < 0) \
992 goto out; \
993 \
994 iscsit_put_tpg(tpg); \
995 return count; \
996out: \
997 iscsit_put_tpg(tpg); \
998 return ret; \
999}
1000
1001#define TPG_ATTR(_name, _mode) TF_TPG_ATTRIB_ATTR(iscsi, _name, _mode);
1002
1003/*
1004 * Define iscsi_tpg_attrib_s_authentication
1005 */
1006DEF_TPG_ATTRIB(authentication);
1007TPG_ATTR(authentication, S_IRUGO | S_IWUSR);
1008/*
1009 * Define iscsi_tpg_attrib_s_login_timeout
1010 */
1011DEF_TPG_ATTRIB(login_timeout);
1012TPG_ATTR(login_timeout, S_IRUGO | S_IWUSR);
1013/*
1014 * Define iscsi_tpg_attrib_s_netif_timeout
1015 */
1016DEF_TPG_ATTRIB(netif_timeout);
1017TPG_ATTR(netif_timeout, S_IRUGO | S_IWUSR);
1018/*
1019 * Define iscsi_tpg_attrib_s_generate_node_acls
1020 */
1021DEF_TPG_ATTRIB(generate_node_acls);
1022TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR);
1023/*
1024 * Define iscsi_tpg_attrib_s_default_cmdsn_depth
1025 */
1026DEF_TPG_ATTRIB(default_cmdsn_depth);
1027TPG_ATTR(default_cmdsn_depth, S_IRUGO | S_IWUSR);
1028/*
1029 Define iscsi_tpg_attrib_s_cache_dynamic_acls
1030 */
1031DEF_TPG_ATTRIB(cache_dynamic_acls);
1032TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR);
1033/*
1034 * Define iscsi_tpg_attrib_s_demo_mode_write_protect
1035 */
1036DEF_TPG_ATTRIB(demo_mode_write_protect);
1037TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR);
1038/*
1039 * Define iscsi_tpg_attrib_s_prod_mode_write_protect
1040 */
1041DEF_TPG_ATTRIB(prod_mode_write_protect);
1042TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR);
1043
1044static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
1045 &iscsi_tpg_attrib_authentication.attr,
1046 &iscsi_tpg_attrib_login_timeout.attr,
1047 &iscsi_tpg_attrib_netif_timeout.attr,
1048 &iscsi_tpg_attrib_generate_node_acls.attr,
1049 &iscsi_tpg_attrib_default_cmdsn_depth.attr,
1050 &iscsi_tpg_attrib_cache_dynamic_acls.attr,
1051 &iscsi_tpg_attrib_demo_mode_write_protect.attr,
1052 &iscsi_tpg_attrib_prod_mode_write_protect.attr,
1053 NULL,
1054};
1055
1056/* End items for lio_target_tpg_attrib_cit */
1057
1058/* Start items for lio_target_tpg_param_cit */
1059
1060#define DEF_TPG_PARAM(name) \
1061static ssize_t iscsi_tpg_param_show_##name( \
1062 struct se_portal_group *se_tpg, \
1063 char *page) \
1064{ \
1065 struct iscsi_portal_group *tpg = container_of(se_tpg, \
1066 struct iscsi_portal_group, tpg_se_tpg); \
1067 struct iscsi_param *param; \
1068 ssize_t rb; \
1069 \
1070 if (iscsit_get_tpg(tpg) < 0) \
1071 return -EINVAL; \
1072 \
1073 param = iscsi_find_param_from_key(__stringify(name), \
1074 tpg->param_list); \
1075 if (!param) { \
1076 iscsit_put_tpg(tpg); \
1077 return -EINVAL; \
1078 } \
1079 rb = snprintf(page, PAGE_SIZE, "%s\n", param->value); \
1080 \
1081 iscsit_put_tpg(tpg); \
1082 return rb; \
1083} \
1084static ssize_t iscsi_tpg_param_store_##name( \
1085 struct se_portal_group *se_tpg, \
1086 const char *page, \
1087 size_t count) \
1088{ \
1089 struct iscsi_portal_group *tpg = container_of(se_tpg, \
1090 struct iscsi_portal_group, tpg_se_tpg); \
1091 char *buf; \
1092 int ret; \
1093 \
1094 buf = kzalloc(PAGE_SIZE, GFP_KERNEL); \
1095 if (!buf) \
1096 return -ENOMEM; \
1097 snprintf(buf, PAGE_SIZE, "%s=%s", __stringify(name), page); \
1098 buf[strlen(buf)-1] = '\0'; /* Kill newline */ \
1099 \
1100 if (iscsit_get_tpg(tpg) < 0) { \
1101 kfree(buf); \
1102 return -EINVAL; \
1103 } \
1104 \
1105 ret = iscsi_change_param_value(buf, tpg->param_list, 1); \
1106 if (ret < 0) \
1107 goto out; \
1108 \
1109 kfree(buf); \
1110 iscsit_put_tpg(tpg); \
1111 return count; \
1112out: \
1113 kfree(buf); \
1114 iscsit_put_tpg(tpg); \
1115 return -EINVAL; \
1116}
1117
1118#define TPG_PARAM_ATTR(_name, _mode) TF_TPG_PARAM_ATTR(iscsi, _name, _mode);
1119
1120DEF_TPG_PARAM(AuthMethod);
1121TPG_PARAM_ATTR(AuthMethod, S_IRUGO | S_IWUSR);
1122
1123DEF_TPG_PARAM(HeaderDigest);
1124TPG_PARAM_ATTR(HeaderDigest, S_IRUGO | S_IWUSR);
1125
1126DEF_TPG_PARAM(DataDigest);
1127TPG_PARAM_ATTR(DataDigest, S_IRUGO | S_IWUSR);
1128
1129DEF_TPG_PARAM(MaxConnections);
1130TPG_PARAM_ATTR(MaxConnections, S_IRUGO | S_IWUSR);
1131
1132DEF_TPG_PARAM(TargetAlias);
1133TPG_PARAM_ATTR(TargetAlias, S_IRUGO | S_IWUSR);
1134
1135DEF_TPG_PARAM(InitialR2T);
1136TPG_PARAM_ATTR(InitialR2T, S_IRUGO | S_IWUSR);
1137
1138DEF_TPG_PARAM(ImmediateData);
1139TPG_PARAM_ATTR(ImmediateData, S_IRUGO | S_IWUSR);
1140
1141DEF_TPG_PARAM(MaxRecvDataSegmentLength);
1142TPG_PARAM_ATTR(MaxRecvDataSegmentLength, S_IRUGO | S_IWUSR);
1143
e004cb25
NB		 1144DEF_TPG_PARAM(MaxXmitDataSegmentLength);
1145TPG_PARAM_ATTR(MaxXmitDataSegmentLength, S_IRUGO | S_IWUSR);
1146
e48354ce
NB		 1147DEF_TPG_PARAM(MaxBurstLength);
1148TPG_PARAM_ATTR(MaxBurstLength, S_IRUGO | S_IWUSR);
1149
1150DEF_TPG_PARAM(FirstBurstLength);
1151TPG_PARAM_ATTR(FirstBurstLength, S_IRUGO | S_IWUSR);
1152
1153DEF_TPG_PARAM(DefaultTime2Wait);
1154TPG_PARAM_ATTR(DefaultTime2Wait, S_IRUGO | S_IWUSR);
1155
1156DEF_TPG_PARAM(DefaultTime2Retain);
1157TPG_PARAM_ATTR(DefaultTime2Retain, S_IRUGO | S_IWUSR);
1158
1159DEF_TPG_PARAM(MaxOutstandingR2T);
1160TPG_PARAM_ATTR(MaxOutstandingR2T, S_IRUGO | S_IWUSR);
1161
1162DEF_TPG_PARAM(DataPDUInOrder);
1163TPG_PARAM_ATTR(DataPDUInOrder, S_IRUGO | S_IWUSR);
1164
1165DEF_TPG_PARAM(DataSequenceInOrder);
1166TPG_PARAM_ATTR(DataSequenceInOrder, S_IRUGO | S_IWUSR);
1167
1168DEF_TPG_PARAM(ErrorRecoveryLevel);
1169TPG_PARAM_ATTR(ErrorRecoveryLevel, S_IRUGO | S_IWUSR);
1170
1171DEF_TPG_PARAM(IFMarker);
1172TPG_PARAM_ATTR(IFMarker, S_IRUGO | S_IWUSR);
1173
1174DEF_TPG_PARAM(OFMarker);
1175TPG_PARAM_ATTR(OFMarker, S_IRUGO | S_IWUSR);
1176
1177DEF_TPG_PARAM(IFMarkInt);
1178TPG_PARAM_ATTR(IFMarkInt, S_IRUGO | S_IWUSR);
1179
1180DEF_TPG_PARAM(OFMarkInt);
1181TPG_PARAM_ATTR(OFMarkInt, S_IRUGO | S_IWUSR);
1182
1183static struct configfs_attribute *lio_target_tpg_param_attrs[] = {
1184 &iscsi_tpg_param_AuthMethod.attr,
1185 &iscsi_tpg_param_HeaderDigest.attr,
1186 &iscsi_tpg_param_DataDigest.attr,
1187 &iscsi_tpg_param_MaxConnections.attr,
1188 &iscsi_tpg_param_TargetAlias.attr,
1189 &iscsi_tpg_param_InitialR2T.attr,
1190 &iscsi_tpg_param_ImmediateData.attr,
1191 &iscsi_tpg_param_MaxRecvDataSegmentLength.attr,
e004cb25 1192 &iscsi_tpg_param_MaxXmitDataSegmentLength.attr,
e48354ce
NB		 1193 &iscsi_tpg_param_MaxBurstLength.attr,
1194 &iscsi_tpg_param_FirstBurstLength.attr,
1195 &iscsi_tpg_param_DefaultTime2Wait.attr,
1196 &iscsi_tpg_param_DefaultTime2Retain.attr,
1197 &iscsi_tpg_param_MaxOutstandingR2T.attr,
1198 &iscsi_tpg_param_DataPDUInOrder.attr,
1199 &iscsi_tpg_param_DataSequenceInOrder.attr,
1200 &iscsi_tpg_param_ErrorRecoveryLevel.attr,
1201 &iscsi_tpg_param_IFMarker.attr,
1202 &iscsi_tpg_param_OFMarker.attr,
1203 &iscsi_tpg_param_IFMarkInt.attr,
1204 &iscsi_tpg_param_OFMarkInt.attr,
1205 NULL,
1206};
1207
1208/* End items for lio_target_tpg_param_cit */
1209
1210/* Start items for lio_target_tpg_cit */
1211
1212static ssize_t lio_target_tpg_show_enable(
1213 struct se_portal_group *se_tpg,
1214 char *page)
1215{
1216 struct iscsi_portal_group *tpg = container_of(se_tpg,
1217 struct iscsi_portal_group, tpg_se_tpg);
1218 ssize_t len;
1219
1220 spin_lock(&tpg->tpg_state_lock);
1221 len = sprintf(page, "%d\n",
1222 (tpg->tpg_state == TPG_STATE_ACTIVE) ? 1 : 0);
1223 spin_unlock(&tpg->tpg_state_lock);
1224
1225 return len;
1226}
1227
1228static ssize_t lio_target_tpg_store_enable(
1229 struct se_portal_group *se_tpg,
1230 const char *page,
1231 size_t count)
1232{
1233 struct iscsi_portal_group *tpg = container_of(se_tpg,
1234 struct iscsi_portal_group, tpg_se_tpg);
1235 char *endptr;
1236 u32 op;
1237 int ret = 0;
1238
1239 op = simple_strtoul(page, &endptr, 0);
1240 if ((op != 1) && (op != 0)) {
1241 pr_err("Illegal value for tpg_enable: %u\n", op);
1242 return -EINVAL;
1243 }
1244
1245 ret = iscsit_get_tpg(tpg);
1246 if (ret < 0)
1247 return -EINVAL;
1248
1249 if (op) {
1250 ret = iscsit_tpg_enable_portal_group(tpg);
1251 if (ret < 0)
1252 goto out;
1253 } else {
1254 /*
1255 * iscsit_tpg_disable_portal_group() assumes force=1
1256 */
1257 ret = iscsit_tpg_disable_portal_group(tpg, 1);
1258 if (ret < 0)
1259 goto out;
1260 }
1261
1262 iscsit_put_tpg(tpg);
1263 return count;
1264out:
1265 iscsit_put_tpg(tpg);
1266 return -EINVAL;
1267}
1268
1269TF_TPG_BASE_ATTR(lio_target, enable, S_IRUGO | S_IWUSR);
1270
1271static struct configfs_attribute *lio_target_tpg_attrs[] = {
1272 &lio_target_tpg_enable.attr,
1273 NULL,
1274};
1275
1276/* End items for lio_target_tpg_cit */
1277
1278/* Start items for lio_target_tiqn_cit */
1279
fceb5bc7 1280static struct se_portal_group *lio_target_tiqn_addtpg(
e48354ce
NB		 1281 struct se_wwn *wwn,
1282 struct config_group *group,
1283 const char *name)
1284{
1285 struct iscsi_portal_group *tpg;
1286 struct iscsi_tiqn *tiqn;
1287 char *tpgt_str, *end_ptr;
1288 int ret = 0;
1289 unsigned short int tpgt;
1290
1291 tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
1292 /*
1293 * Only tpgt_# directory groups can be created below
1294 * target/iscsi/iqn.superturodiskarry/
1295 */
1296 tpgt_str = strstr(name, "tpgt_");
1297 if (!tpgt_str) {
1298 pr_err("Unable to locate \"tpgt_#\" directory"
1299 " group\n");
1300 return NULL;
1301 }
1302 tpgt_str += 5; /* Skip ahead of "tpgt_" */
1303 tpgt = (unsigned short int) simple_strtoul(tpgt_str, &end_ptr, 0);
1304
1305 tpg = iscsit_alloc_portal_group(tiqn, tpgt);
1306 if (!tpg)
1307 return NULL;
1308
1309 ret = core_tpg_register(
1310 &lio_target_fabric_configfs->tf_ops,
8359cf43 1311 wwn, &tpg->tpg_se_tpg, tpg,
e48354ce
NB		 1312 TRANSPORT_TPG_TYPE_NORMAL);
1313 if (ret < 0)
1314 return NULL;
1315
1316 ret = iscsit_tpg_add_portal_group(tiqn, tpg);
1317 if (ret != 0)
1318 goto out;
1319
1320 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn);
1321 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated TPG: %s\n",
1322 name);
1323 return &tpg->tpg_se_tpg;
1324out:
1325 core_tpg_deregister(&tpg->tpg_se_tpg);
1326 kfree(tpg);
1327 return NULL;
1328}
1329
fceb5bc7 1330static void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg)
e48354ce
NB		 1331{
1332 struct iscsi_portal_group *tpg;
1333 struct iscsi_tiqn *tiqn;
1334
1335 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
1336 tiqn = tpg->tpg_tiqn;
1337 /*
1338 * iscsit_tpg_del_portal_group() assumes force=1
1339 */
1340 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> Releasing TPG\n");
1341 iscsit_tpg_del_portal_group(tiqn, tpg, 1);
1342}
1343
1344/* End items for lio_target_tiqn_cit */
1345
1346/* Start LIO-Target TIQN struct contig_item lio_target_cit */
1347
1348static ssize_t lio_target_wwn_show_attr_lio_version(
1349 struct target_fabric_configfs *tf,
1350 char *page)
1351{
1352 return sprintf(page, "RisingTide Systems Linux-iSCSI Target "ISCSIT_VERSION"\n");
1353}
1354
1355TF_WWN_ATTR_RO(lio_target, lio_version);
1356
1357static struct configfs_attribute *lio_target_wwn_attrs[] = {
1358 &lio_target_wwn_lio_version.attr,
1359 NULL,
1360};
1361
fceb5bc7 1362static struct se_wwn *lio_target_call_coreaddtiqn(
e48354ce
NB		 1363 struct target_fabric_configfs *tf,
1364 struct config_group *group,
1365 const char *name)
1366{
1367 struct config_group *stats_cg;
1368 struct iscsi_tiqn *tiqn;
1369
1370 tiqn = iscsit_add_tiqn((unsigned char *)name);
1371 if (IS_ERR(tiqn))
e1750ba2 1372 return ERR_CAST(tiqn);
e48354ce
NB		 1373 /*
1374 * Setup struct iscsi_wwn_stat_grps for se_wwn->fabric_stat_group.
1375 */
1376 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group;
1377
13f6a914 1378 stats_cg->default_groups = kmalloc(sizeof(struct config_group *) * 6,
e48354ce
NB		 1379 GFP_KERNEL);
1380 if (!stats_cg->default_groups) {
1381 pr_err("Unable to allocate memory for"
1382 " stats_cg->default_groups\n");
1383 iscsit_del_tiqn(tiqn);
1384 return ERR_PTR(-ENOMEM);
1385 }
1386
1387 stats_cg->default_groups[0] = &WWN_STAT_GRPS(tiqn)->iscsi_instance_group;
1388 stats_cg->default_groups[1] = &WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group;
1389 stats_cg->default_groups[2] = &WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group;
1390 stats_cg->default_groups[3] = &WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group;
1391 stats_cg->default_groups[4] = &WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group;
1392 stats_cg->default_groups[5] = NULL;
1393 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_instance_group,
1394 "iscsi_instance", &iscsi_stat_instance_cit);
1395 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group,
1396 "iscsi_sess_err", &iscsi_stat_sess_err_cit);
1397 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group,
1398 "iscsi_tgt_attr", &iscsi_stat_tgt_attr_cit);
1399 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group,
1400 "iscsi_login_stats", &iscsi_stat_login_cit);
1401 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group,
1402 "iscsi_logout_stats", &iscsi_stat_logout_cit);
1403
1404 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn);
1405 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated Node:"
1406 " %s\n", name);
1407 return &tiqn->tiqn_wwn;
1408}
1409
fceb5bc7 1410static void lio_target_call_coredeltiqn(
e48354ce
NB		 1411 struct se_wwn *wwn)
1412{
1413 struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
1414 struct config_item *df_item;
1415 struct config_group *stats_cg;
1416 int i;
1417
1418 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group;
1419 for (i = 0; stats_cg->default_groups[i]; i++) {
1420 df_item = &stats_cg->default_groups[i]->cg_item;
1421 stats_cg->default_groups[i] = NULL;
1422 config_item_put(df_item);
1423 }
1424 kfree(stats_cg->default_groups);
1425
1426 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s\n",
1427 tiqn->tiqn);
1428 iscsit_del_tiqn(tiqn);
1429}
1430
1431/* End LIO-Target TIQN struct contig_lio_target_cit */
1432
1433/* Start lio_target_discovery_auth_cit */
1434
1435#define DEF_DISC_AUTH_STR(name, flags) \
1436 __DEF_NACL_AUTH_STR(disc, name, flags) \
1437static ssize_t iscsi_disc_show_##name( \
1438 struct target_fabric_configfs *tf, \
1439 char *page) \
1440{ \
1441 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \
1442 page); \
1443} \
1444static ssize_t iscsi_disc_store_##name( \
1445 struct target_fabric_configfs *tf, \
1446 const char *page, \
1447 size_t count) \
1448{ \
1449 return __iscsi_disc_store_##name(&iscsit_global->discovery_acl, \
1450 page, count); \
1451}
1452
1453#define DEF_DISC_AUTH_INT(name) \
1454 __DEF_NACL_AUTH_INT(disc, name) \
1455static ssize_t iscsi_disc_show_##name( \
1456 struct target_fabric_configfs *tf, \
1457 char *page) \
1458{ \
1459 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \
1460 page); \
1461}
1462
1463#define DISC_AUTH_ATTR(_name, _mode) TF_DISC_ATTR(iscsi, _name, _mode)
1464#define DISC_AUTH_ATTR_RO(_name) TF_DISC_ATTR_RO(iscsi, _name)
1465
1466/*
1467 * One-way authentication userid
1468 */
1469DEF_DISC_AUTH_STR(userid, NAF_USERID_SET);
1470DISC_AUTH_ATTR(userid, S_IRUGO | S_IWUSR);
1471/*
1472 * One-way authentication password
1473 */
1474DEF_DISC_AUTH_STR(password, NAF_PASSWORD_SET);
1475DISC_AUTH_ATTR(password, S_IRUGO | S_IWUSR);
1476/*
1477 * Enforce mutual authentication
1478 */
1479DEF_DISC_AUTH_INT(authenticate_target);
1480DISC_AUTH_ATTR_RO(authenticate_target);
1481/*
1482 * Mutual authentication userid
1483 */
1484DEF_DISC_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
1485DISC_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR);
1486/*
1487 * Mutual authentication password
1488 */
1489DEF_DISC_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
1490DISC_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR);
1491
1492/*
1493 * enforce_discovery_auth
1494 */
1495static ssize_t iscsi_disc_show_enforce_discovery_auth(
1496 struct target_fabric_configfs *tf,
1497 char *page)
1498{
1499 struct iscsi_node_auth *discovery_auth = &iscsit_global->discovery_acl.node_auth;
1500
1501 return sprintf(page, "%d\n", discovery_auth->enforce_discovery_auth);
1502}
1503
1504static ssize_t iscsi_disc_store_enforce_discovery_auth(
1505 struct target_fabric_configfs *tf,
1506 const char *page,
1507 size_t count)
1508{
1509 struct iscsi_param *param;
1510 struct iscsi_portal_group *discovery_tpg = iscsit_global->discovery_tpg;
1511 char *endptr;
1512 u32 op;
1513
1514 op = simple_strtoul(page, &endptr, 0);
1515 if ((op != 1) && (op != 0)) {
1516 pr_err("Illegal value for enforce_discovery_auth:"
1517 " %u\n", op);
1518 return -EINVAL;
1519 }
1520
1521 if (!discovery_tpg) {
1522 pr_err("iscsit_global->discovery_tpg is NULL\n");
1523 return -EINVAL;
1524 }
1525
1526 param = iscsi_find_param_from_key(AUTHMETHOD,
1527 discovery_tpg->param_list);
1528 if (!param)
1529 return -EINVAL;
1530
1531 if (op) {
1532 /*
1533 * Reset the AuthMethod key to CHAP.
1534 */
1535 if (iscsi_update_param_value(param, CHAP) < 0)
1536 return -EINVAL;
1537
1538 discovery_tpg->tpg_attrib.authentication = 1;
1539 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 1;
1540 pr_debug("LIO-CORE[0] Successfully enabled"
1541 " authentication enforcement for iSCSI"
1542 " Discovery TPG\n");
1543 } else {
1544 /*
1545 * Reset the AuthMethod key to CHAP,None
1546 */
1547 if (iscsi_update_param_value(param, "CHAP,None") < 0)
1548 return -EINVAL;
1549
1550 discovery_tpg->tpg_attrib.authentication = 0;
1551 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 0;
1552 pr_debug("LIO-CORE[0] Successfully disabled"
1553 " authentication enforcement for iSCSI"
1554 " Discovery TPG\n");
1555 }
1556
1557 return count;
1558}
1559
1560DISC_AUTH_ATTR(enforce_discovery_auth, S_IRUGO | S_IWUSR);
1561
1562static struct configfs_attribute *lio_target_discovery_auth_attrs[] = {
1563 &iscsi_disc_userid.attr,
1564 &iscsi_disc_password.attr,
1565 &iscsi_disc_authenticate_target.attr,
1566 &iscsi_disc_userid_mutual.attr,
1567 &iscsi_disc_password_mutual.attr,
1568 &iscsi_disc_enforce_discovery_auth.attr,
1569 NULL,
1570};
1571
1572/* End lio_target_discovery_auth_cit */
1573
1574/* Start functions for target_core_fabric_ops */
1575
1576static char *iscsi_get_fabric_name(void)
1577{
1578 return "iSCSI";
1579}
1580
1581static u32 iscsi_get_task_tag(struct se_cmd *se_cmd)
1582{
1583 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1584
66c7db68
CH		 1585 /* only used for printks or comparism with ->ref_task_tag */
1586 return (__force u32)cmd->init_task_tag;
e48354ce
NB		 1587}
1588
1589static int iscsi_get_cmd_state(struct se_cmd *se_cmd)
1590{
1591 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1592
1593 return cmd->i_state;
1594}
1595
e48354ce
NB		 1596static u32 lio_sess_get_index(struct se_session *se_sess)
1597{
1598 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1599
1600 return sess->session_index;
1601}
1602
1603static u32 lio_sess_get_initiator_sid(
1604 struct se_session *se_sess,
1605 unsigned char *buf,
1606 u32 size)
1607{
1608 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1609 /*
1610 * iSCSI Initiator Session Identifier from RFC-3720.
1611 */
1612 return snprintf(buf, size, "%02x%02x%02x%02x%02x%02x",
1613 sess->isid[0], sess->isid[1], sess->isid[2],
1614 sess->isid[3], sess->isid[4], sess->isid[5]);
1615}
1616
1617static int lio_queue_data_in(struct se_cmd *se_cmd)
1618{
1619 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1620
1621 cmd->i_state = ISTATE_SEND_DATAIN;
2ec5a8c1
NB		 1622 cmd->conn->conn_transport->iscsit_queue_data_in(cmd->conn, cmd);
1623
e48354ce
NB		 1624 return 0;
1625}
1626
1627static int lio_write_pending(struct se_cmd *se_cmd)
1628{
1629 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
3e1c81a9 1630 struct iscsi_conn *conn = cmd->conn;
e48354ce
NB		 1631
1632 if (!cmd->immediate_data && !cmd->unsolicited_data)
3e1c81a9 1633 return conn->conn_transport->iscsit_get_dataout(conn, cmd, false);
e48354ce
NB		 1634
1635 return 0;
1636}
1637
1638static int lio_write_pending_status(struct se_cmd *se_cmd)
1639{
1640 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1641 int ret;
1642
1643 spin_lock_bh(&cmd->istate_lock);
1644 ret = !(cmd->cmd_flags & ICF_GOT_LAST_DATAOUT);
1645 spin_unlock_bh(&cmd->istate_lock);
1646
1647 return ret;
1648}
1649
1650static int lio_queue_status(struct se_cmd *se_cmd)
1651{
1652 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1653
1654 cmd->i_state = ISTATE_SEND_STATUS;
2ec5a8c1
NB		 1655 cmd->conn->conn_transport->iscsit_queue_status(cmd->conn, cmd);
1656
e48354ce
NB		 1657 return 0;
1658}
1659
e48354ce
NB		 1660static int lio_queue_tm_rsp(struct se_cmd *se_cmd)
1661{
1662 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1663
1664 cmd->i_state = ISTATE_SEND_TASKMGTRSP;
1665 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
1666 return 0;
1667}
1668
1669static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg)
1670{
1671 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1672
1673 return &tpg->tpg_tiqn->tiqn[0];
1674}
1675
1676static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg)
1677{
1678 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1679
1680 return tpg->tpgt;
1681}
1682
1683static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg)
1684{
1685 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1686
1687 return ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth;
1688}
1689
1690static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg)
1691{
1692 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1693
1694 return ISCSI_TPG_ATTRIB(tpg)->generate_node_acls;
1695}
1696
1697static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg)
1698{
1699 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1700
1701 return ISCSI_TPG_ATTRIB(tpg)->cache_dynamic_acls;
1702}
1703
1704static int lio_tpg_check_demo_mode_write_protect(
1705 struct se_portal_group *se_tpg)
1706{
1707 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1708
1709 return ISCSI_TPG_ATTRIB(tpg)->demo_mode_write_protect;
1710}
1711
1712static int lio_tpg_check_prod_mode_write_protect(
1713 struct se_portal_group *se_tpg)
1714{
1715 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1716
1717 return ISCSI_TPG_ATTRIB(tpg)->prod_mode_write_protect;
1718}
1719
1720static void lio_tpg_release_fabric_acl(
1721 struct se_portal_group *se_tpg,
1722 struct se_node_acl *se_acl)
1723{
1724 struct iscsi_node_acl *acl = container_of(se_acl,
1725 struct iscsi_node_acl, se_node_acl);
1726 kfree(acl);
1727}
1728
1729/*
1730 * Called with spin_lock_bh(struct se_portal_group->session_lock) held..
1731 *
1732 * Also, this function calls iscsit_inc_session_usage_count() on the
1733 * struct iscsi_session in question.
1734 */
1735static int lio_tpg_shutdown_session(struct se_session *se_sess)
1736{
1737 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1738
1739 spin_lock(&sess->conn_lock);
1740 if (atomic_read(&sess->session_fall_back_to_erl0) ||
1741 atomic_read(&sess->session_logout) ||
1742 (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) {
1743 spin_unlock(&sess->conn_lock);
1744 return 0;
1745 }
1746 atomic_set(&sess->session_reinstatement, 1);
1747 spin_unlock(&sess->conn_lock);
1748
e48354ce 1749 iscsit_stop_time2retain_timer(sess);
99367f01 1750 iscsit_stop_session(sess, 1, 1);
e48354ce
NB		 1751
1752 return 1;
1753}
1754
1755/*
1756 * Calls iscsit_dec_session_usage_count() as inverse of
1757 * lio_tpg_shutdown_session()
1758 */
1759static void lio_tpg_close_session(struct se_session *se_sess)
1760{
1761 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1762 /*
1763 * If the iSCSI Session for the iSCSI Initiator Node exists,
1764 * forcefully shutdown the iSCSI NEXUS.
1765 */
e48354ce
NB		 1766 iscsit_close_session(sess);
1767}
1768
e48354ce
NB		 1769static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg)
1770{
1771 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1772
1773 return tpg->tpg_tiqn->tiqn_index;
1774}
1775
1776static void lio_set_default_node_attributes(struct se_node_acl *se_acl)
1777{
1778 struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl,
1779 se_node_acl);
1780
1781 ISCSI_NODE_ATTRIB(acl)->nacl = acl;
1782 iscsit_set_default_node_attribues(acl);
1783}
1784
3e1c81a9
NB		 1785static int lio_check_stop_free(struct se_cmd *se_cmd)
1786{
1787 return target_put_sess_cmd(se_cmd->se_sess, se_cmd);
1788}
1789
e48354ce
NB		 1790static void lio_release_cmd(struct se_cmd *se_cmd)
1791{
1792 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1793
cdb72665
NB		 1794 pr_debug("Entering lio_release_cmd for se_cmd: %p\n", se_cmd);
1795 cmd->release_cmd(cmd);
e48354ce
NB		 1796}
1797
1798/* End functions for target_core_fabric_ops */
1799
1800int iscsi_target_register_configfs(void)
1801{
1802 struct target_fabric_configfs *fabric;
1803 int ret;
1804
1805 lio_target_fabric_configfs = NULL;
1806 fabric = target_fabric_configfs_init(THIS_MODULE, "iscsi");
1807 if (IS_ERR(fabric)) {
1808 pr_err("target_fabric_configfs_init() for"
1809 " LIO-Target failed!\n");
1810 return PTR_ERR(fabric);
1811 }
1812 /*
1813 * Setup the fabric API of function pointers used by target_core_mod..
1814 */
1815 fabric->tf_ops.get_fabric_name = &iscsi_get_fabric_name;
1816 fabric->tf_ops.get_fabric_proto_ident = &iscsi_get_fabric_proto_ident;
1817 fabric->tf_ops.tpg_get_wwn = &lio_tpg_get_endpoint_wwn;
1818 fabric->tf_ops.tpg_get_tag = &lio_tpg_get_tag;
1819 fabric->tf_ops.tpg_get_default_depth = &lio_tpg_get_default_depth;
1820 fabric->tf_ops.tpg_get_pr_transport_id = &iscsi_get_pr_transport_id;
1821 fabric->tf_ops.tpg_get_pr_transport_id_len =
1822 &iscsi_get_pr_transport_id_len;
1823 fabric->tf_ops.tpg_parse_pr_out_transport_id =
1824 &iscsi_parse_pr_out_transport_id;
1825 fabric->tf_ops.tpg_check_demo_mode = &lio_tpg_check_demo_mode;
1826 fabric->tf_ops.tpg_check_demo_mode_cache =
1827 &lio_tpg_check_demo_mode_cache;
1828 fabric->tf_ops.tpg_check_demo_mode_write_protect =
1829 &lio_tpg_check_demo_mode_write_protect;
1830 fabric->tf_ops.tpg_check_prod_mode_write_protect =
1831 &lio_tpg_check_prod_mode_write_protect;
1832 fabric->tf_ops.tpg_alloc_fabric_acl = &lio_tpg_alloc_fabric_acl;
1833 fabric->tf_ops.tpg_release_fabric_acl = &lio_tpg_release_fabric_acl;
1834 fabric->tf_ops.tpg_get_inst_index = &lio_tpg_get_inst_index;
3e1c81a9 1835 fabric->tf_ops.check_stop_free = &lio_check_stop_free,
e48354ce
NB		 1836 fabric->tf_ops.release_cmd = &lio_release_cmd;
1837 fabric->tf_ops.shutdown_session = &lio_tpg_shutdown_session;
1838 fabric->tf_ops.close_session = &lio_tpg_close_session;
e48354ce
NB		 1839 fabric->tf_ops.sess_get_index = &lio_sess_get_index;
1840 fabric->tf_ops.sess_get_initiator_sid = &lio_sess_get_initiator_sid;
1841 fabric->tf_ops.write_pending = &lio_write_pending;
1842 fabric->tf_ops.write_pending_status = &lio_write_pending_status;
1843 fabric->tf_ops.set_default_node_attributes =
1844 &lio_set_default_node_attributes;
1845 fabric->tf_ops.get_task_tag = &iscsi_get_task_tag;
1846 fabric->tf_ops.get_cmd_state = &iscsi_get_cmd_state;
1847 fabric->tf_ops.queue_data_in = &lio_queue_data_in;
1848 fabric->tf_ops.queue_status = &lio_queue_status;
1849 fabric->tf_ops.queue_tm_rsp = &lio_queue_tm_rsp;
e48354ce
NB		 1850 /*
1851 * Setup function pointers for generic logic in target_core_fabric_configfs.c
1852 */
1853 fabric->tf_ops.fabric_make_wwn = &lio_target_call_coreaddtiqn;
1854 fabric->tf_ops.fabric_drop_wwn = &lio_target_call_coredeltiqn;
1855 fabric->tf_ops.fabric_make_tpg = &lio_target_tiqn_addtpg;
1856 fabric->tf_ops.fabric_drop_tpg = &lio_target_tiqn_deltpg;
1857 fabric->tf_ops.fabric_post_link = NULL;
1858 fabric->tf_ops.fabric_pre_unlink = NULL;
1859 fabric->tf_ops.fabric_make_np = &lio_target_call_addnptotpg;
1860 fabric->tf_ops.fabric_drop_np = &lio_target_call_delnpfromtpg;
1861 fabric->tf_ops.fabric_make_nodeacl = &lio_target_make_nodeacl;
1862 fabric->tf_ops.fabric_drop_nodeacl = &lio_target_drop_nodeacl;
1863 /*
1864 * Setup default attribute lists for various fabric->tf_cit_tmpl
1865 * sturct config_item_type's
1866 */
1867 TF_CIT_TMPL(fabric)->tfc_discovery_cit.ct_attrs = lio_target_discovery_auth_attrs;
1868 TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = lio_target_wwn_attrs;
1869 TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = lio_target_tpg_attrs;
1870 TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = lio_target_tpg_attrib_attrs;
1871 TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = lio_target_tpg_param_attrs;
1872 TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = lio_target_portal_attrs;
1873 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = lio_target_initiator_attrs;
1874 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = lio_target_nacl_attrib_attrs;
1875 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = lio_target_nacl_auth_attrs;
1876 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = lio_target_nacl_param_attrs;
1877
1878 ret = target_fabric_configfs_register(fabric);
1879 if (ret < 0) {
1880 pr_err("target_fabric_configfs_register() for"
1881 " LIO-Target failed!\n");
1882 target_fabric_configfs_free(fabric);
1883 return ret;
1884 }
1885
1886 lio_target_fabric_configfs = fabric;
1887 pr_debug("LIO_TARGET[0] - Set fabric ->"
1888 " lio_target_fabric_configfs\n");
1889 return 0;
1890}
1891
1892
1893void iscsi_target_deregister_configfs(void)
1894{
1895 if (!lio_target_fabric_configfs)
1896 return;
1897 /*
1898 * Shutdown discovery sessions and disable discovery TPG
1899 */
1900 if (iscsit_global->discovery_tpg)
1901 iscsit_tpg_disable_portal_group(iscsit_global->discovery_tpg, 1);
1902
1903 target_fabric_configfs_deregister(lio_target_fabric_configfs);
1904 lio_target_fabric_configfs = NULL;
1905 pr_debug("LIO_TARGET[0] - Cleared"
1906 " lio_target_fabric_configfs\n");
1907}
Linux 6.x block layer and io_uring tree(s)