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Merge remote-tracking branch 'asoc/topic/compress' into asoc-next
[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 *
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
NB		 27#include <target/target_core_configfs.h>
28#include <target/configfs_macros.h>
2ec5a8c1 29#include <target/iscsi/iscsi_transport.h>
e48354ce
NB		 30
31#include "iscsi_target_core.h"
32#include "iscsi_target_parameters.h"
33#include "iscsi_target_device.h"
34#include "iscsi_target_erl0.h"
35#include "iscsi_target_nodeattrib.h"
36#include "iscsi_target_tpg.h"
37#include "iscsi_target_util.h"
38#include "iscsi_target.h"
39#include "iscsi_target_stat.h"
40#include "iscsi_target_configfs.h"
41
42struct target_fabric_configfs *lio_target_fabric_configfs;
43
44struct lio_target_configfs_attribute {
45 struct configfs_attribute attr;
46 ssize_t (*show)(void *, char *);
47 ssize_t (*store)(void *, const char *, size_t);
48};
49
e48354ce
NB		 50/* Start items for lio_target_portal_cit */
51
52static ssize_t lio_target_np_show_sctp(
53 struct se_tpg_np *se_tpg_np,
54 char *page)
55{
56 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np,
57 struct iscsi_tpg_np, se_tpg_np);
58 struct iscsi_tpg_np *tpg_np_sctp;
59 ssize_t rb;
60
61 tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP);
62 if (tpg_np_sctp)
63 rb = sprintf(page, "1\n");
64 else
65 rb = sprintf(page, "0\n");
66
67 return rb;
68}
69
70static ssize_t lio_target_np_store_sctp(
71 struct se_tpg_np *se_tpg_np,
72 const char *page,
73 size_t count)
74{
75 struct iscsi_np *np;
76 struct iscsi_portal_group *tpg;
77 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np,
78 struct iscsi_tpg_np, se_tpg_np);
79 struct iscsi_tpg_np *tpg_np_sctp = NULL;
e48354ce
NB		 80 u32 op;
81 int ret;
82
ad7babd2
JE		 83 ret = kstrtou32(page, 0, &op);
84 if (ret)
85 return ret;
e48354ce
NB		 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
72438cdd
NB		 198 iscsit_put_tpg(tpg);
199 return count;
200out:
201 iscsit_put_tpg(tpg);
58bd0c69 202 return rc;
72438cdd
NB		 203}
204
205TF_NP_BASE_ATTR(lio_target, iser, S_IRUGO | S_IWUSR);
206
e48354ce
NB		 207static struct configfs_attribute *lio_target_portal_attrs[] = {
208 &lio_target_np_sctp.attr,
72438cdd 209 &lio_target_np_iser.attr,
e48354ce
NB		 210 NULL,
211};
212
213/* Stop items for lio_target_portal_cit */
214
215/* Start items for lio_target_np_cit */
216
217#define MAX_PORTAL_LEN 256
218
fceb5bc7 219static struct se_tpg_np *lio_target_call_addnptotpg(
e48354ce
NB		 220 struct se_portal_group *se_tpg,
221 struct config_group *group,
222 const char *name)
223{
224 struct iscsi_portal_group *tpg;
225 struct iscsi_tpg_np *tpg_np;
226 char *str, *str2, *ip_str, *port_str;
227 struct __kernel_sockaddr_storage sockaddr;
228 struct sockaddr_in *sock_in;
229 struct sockaddr_in6 *sock_in6;
230 unsigned long port;
231 int ret;
232 char buf[MAX_PORTAL_LEN + 1];
233
234 if (strlen(name) > MAX_PORTAL_LEN) {
235 pr_err("strlen(name): %d exceeds MAX_PORTAL_LEN: %d\n",
236 (int)strlen(name), MAX_PORTAL_LEN);
237 return ERR_PTR(-EOVERFLOW);
238 }
239 memset(buf, 0, MAX_PORTAL_LEN + 1);
7bbb654e 240 snprintf(buf, MAX_PORTAL_LEN + 1, "%s", name);
e48354ce
NB		 241
242 memset(&sockaddr, 0, sizeof(struct __kernel_sockaddr_storage));
243
244 str = strstr(buf, "[");
245 if (str) {
246 const char *end;
247
248 str2 = strstr(str, "]");
249 if (!str2) {
250 pr_err("Unable to locate trailing \"]\""
251 " in IPv6 iSCSI network portal address\n");
252 return ERR_PTR(-EINVAL);
253 }
254 str++; /* Skip over leading "[" */
255 *str2 = '\0'; /* Terminate the IPv6 address */
256 str2++; /* Skip over the "]" */
257 port_str = strstr(str2, ":");
258 if (!port_str) {
259 pr_err("Unable to locate \":port\""
260 " in IPv6 iSCSI network portal address\n");
261 return ERR_PTR(-EINVAL);
262 }
263 *port_str = '\0'; /* Terminate string for IP */
264 port_str++; /* Skip over ":" */
265
57103d7f 266 ret = kstrtoul(port_str, 0, &port);
e48354ce 267 if (ret < 0) {
57103d7f 268 pr_err("kstrtoul() failed for port_str: %d\n", ret);
e48354ce
NB		 269 return ERR_PTR(ret);
270 }
271 sock_in6 = (struct sockaddr_in6 *)&sockaddr;
272 sock_in6->sin6_family = AF_INET6;
273 sock_in6->sin6_port = htons((unsigned short)port);
274 ret = in6_pton(str, IPV6_ADDRESS_SPACE,
275 (void *)&sock_in6->sin6_addr.in6_u, -1, &end);
276 if (ret <= 0) {
277 pr_err("in6_pton returned: %d\n", ret);
278 return ERR_PTR(-EINVAL);
279 }
280 } else {
281 str = ip_str = &buf[0];
282 port_str = strstr(ip_str, ":");
283 if (!port_str) {
284 pr_err("Unable to locate \":port\""
285 " in IPv4 iSCSI network portal address\n");
286 return ERR_PTR(-EINVAL);
287 }
288 *port_str = '\0'; /* Terminate string for IP */
289 port_str++; /* Skip over ":" */
290
57103d7f 291 ret = kstrtoul(port_str, 0, &port);
e48354ce 292 if (ret < 0) {
57103d7f 293 pr_err("kstrtoul() failed for port_str: %d\n", ret);
e48354ce
NB		 294 return ERR_PTR(ret);
295 }
296 sock_in = (struct sockaddr_in *)&sockaddr;
297 sock_in->sin_family = AF_INET;
298 sock_in->sin_port = htons((unsigned short)port);
299 sock_in->sin_addr.s_addr = in_aton(ip_str);
300 }
301 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
302 ret = iscsit_get_tpg(tpg);
303 if (ret < 0)
304 return ERR_PTR(-EINVAL);
305
306 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s TPGT: %hu"
307 " PORTAL: %s\n",
308 config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item),
309 tpg->tpgt, name);
310 /*
311 * Assume ISCSI_TCP by default. Other network portals for other
312 * iSCSI fabrics:
313 *
314 * Traditional iSCSI over SCTP (initial support)
315 * iSER/TCP (TODO, hardware available)
316 * iSER/SCTP (TODO, software emulation with osc-iwarp)
317 * iSER/IB (TODO, hardware available)
318 *
20879696 319 * can be enabled with attributes under
e48354ce
NB		 320 * sys/kernel/config/iscsi/$IQN/$TPG/np/$IP:$PORT/
321 *
322 */
323 tpg_np = iscsit_tpg_add_network_portal(tpg, &sockaddr, str, NULL,
324 ISCSI_TCP);
325 if (IS_ERR(tpg_np)) {
326 iscsit_put_tpg(tpg);
e1750ba2 327 return ERR_CAST(tpg_np);
e48354ce
NB		 328 }
329 pr_debug("LIO_Target_ConfigFS: addnptotpg done!\n");
330
331 iscsit_put_tpg(tpg);
332 return &tpg_np->se_tpg_np;
333}
334
335static void lio_target_call_delnpfromtpg(
336 struct se_tpg_np *se_tpg_np)
337{
338 struct iscsi_portal_group *tpg;
339 struct iscsi_tpg_np *tpg_np;
340 struct se_portal_group *se_tpg;
341 int ret;
342
343 tpg_np = container_of(se_tpg_np, struct iscsi_tpg_np, se_tpg_np);
344 tpg = tpg_np->tpg;
345 ret = iscsit_get_tpg(tpg);
346 if (ret < 0)
347 return;
348
349 se_tpg = &tpg->tpg_se_tpg;
350 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s TPGT: %hu"
351 " PORTAL: %s:%hu\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item),
352 tpg->tpgt, tpg_np->tpg_np->np_ip, tpg_np->tpg_np->np_port);
353
354 ret = iscsit_tpg_del_network_portal(tpg, tpg_np);
355 if (ret < 0)
356 goto out;
357
358 pr_debug("LIO_Target_ConfigFS: delnpfromtpg done!\n");
359out:
360 iscsit_put_tpg(tpg);
361}
362
363/* End items for lio_target_np_cit */
364
365/* Start items for lio_target_nacl_attrib_cit */
366
367#define DEF_NACL_ATTRIB(name) \
368static ssize_t iscsi_nacl_attrib_show_##name( \
369 struct se_node_acl *se_nacl, \
370 char *page) \
371{ \
372 struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \
373 se_node_acl); \
374 \
b7eec2cd 375 return sprintf(page, "%u\n", nacl->node_attrib.name); \
e48354ce
NB		 376} \
377 \
378static ssize_t iscsi_nacl_attrib_store_##name( \
379 struct se_node_acl *se_nacl, \
380 const char *page, \
381 size_t count) \
382{ \
383 struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \
384 se_node_acl); \
e48354ce
NB		 385 u32 val; \
386 int ret; \
387 \
ad7babd2
JE		 388 ret = kstrtou32(page, 0, &val); \
389 if (ret) \
390 return ret; \
e48354ce
NB		 391 ret = iscsit_na_##name(nacl, val); \
392 if (ret < 0) \
393 return ret; \
394 \
395 return count; \
396}
397
398#define NACL_ATTR(_name, _mode) TF_NACL_ATTRIB_ATTR(iscsi, _name, _mode);
399/*
400 * Define iscsi_node_attrib_s_dataout_timeout
401 */
402DEF_NACL_ATTRIB(dataout_timeout);
403NACL_ATTR(dataout_timeout, S_IRUGO | S_IWUSR);
404/*
405 * Define iscsi_node_attrib_s_dataout_timeout_retries
406 */
407DEF_NACL_ATTRIB(dataout_timeout_retries);
408NACL_ATTR(dataout_timeout_retries, S_IRUGO | S_IWUSR);
409/*
410 * Define iscsi_node_attrib_s_default_erl
411 */
412DEF_NACL_ATTRIB(default_erl);
413NACL_ATTR(default_erl, S_IRUGO | S_IWUSR);
414/*
415 * Define iscsi_node_attrib_s_nopin_timeout
416 */
417DEF_NACL_ATTRIB(nopin_timeout);
418NACL_ATTR(nopin_timeout, S_IRUGO | S_IWUSR);
419/*
420 * Define iscsi_node_attrib_s_nopin_response_timeout
421 */
422DEF_NACL_ATTRIB(nopin_response_timeout);
423NACL_ATTR(nopin_response_timeout, S_IRUGO | S_IWUSR);
424/*
425 * Define iscsi_node_attrib_s_random_datain_pdu_offsets
426 */
427DEF_NACL_ATTRIB(random_datain_pdu_offsets);
428NACL_ATTR(random_datain_pdu_offsets, S_IRUGO | S_IWUSR);
429/*
430 * Define iscsi_node_attrib_s_random_datain_seq_offsets
431 */
432DEF_NACL_ATTRIB(random_datain_seq_offsets);
433NACL_ATTR(random_datain_seq_offsets, S_IRUGO | S_IWUSR);
434/*
435 * Define iscsi_node_attrib_s_random_r2t_offsets
436 */
437DEF_NACL_ATTRIB(random_r2t_offsets);
438NACL_ATTR(random_r2t_offsets, S_IRUGO | S_IWUSR);
439
440static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = {
441 &iscsi_nacl_attrib_dataout_timeout.attr,
442 &iscsi_nacl_attrib_dataout_timeout_retries.attr,
443 &iscsi_nacl_attrib_default_erl.attr,
444 &iscsi_nacl_attrib_nopin_timeout.attr,
445 &iscsi_nacl_attrib_nopin_response_timeout.attr,
446 &iscsi_nacl_attrib_random_datain_pdu_offsets.attr,
447 &iscsi_nacl_attrib_random_datain_seq_offsets.attr,
448 &iscsi_nacl_attrib_random_r2t_offsets.attr,
449 NULL,
450};
451
452/* End items for lio_target_nacl_attrib_cit */
453
454/* Start items for lio_target_nacl_auth_cit */
455
456#define __DEF_NACL_AUTH_STR(prefix, name, flags) \
457static ssize_t __iscsi_##prefix##_show_##name( \
458 struct iscsi_node_acl *nacl, \
459 char *page) \
460{ \
461 struct iscsi_node_auth *auth = &nacl->node_auth; \
462 \
463 if (!capable(CAP_SYS_ADMIN)) \
464 return -EPERM; \
465 return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \
466} \
467 \
468static ssize_t __iscsi_##prefix##_store_##name( \
469 struct iscsi_node_acl *nacl, \
470 const char *page, \
471 size_t count) \
472{ \
473 struct iscsi_node_auth *auth = &nacl->node_auth; \
474 \
475 if (!capable(CAP_SYS_ADMIN)) \
476 return -EPERM; \
2306bfb2
ES		 477 if (count >= sizeof(auth->name)) \
478 return -EINVAL; \
0fbfc46f 479 snprintf(auth->name, sizeof(auth->name), "%s", page); \
e48354ce
NB		 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;
e48354ce
NB		 794 u32 cmdsn_depth = 0;
795 int ret;
796
ad7babd2
JE		 797 ret = kstrtou32(page, 0, &cmdsn_depth);
798 if (ret)
799 return ret;
e48354ce
NB		 800 if (cmdsn_depth > TA_DEFAULT_CMDSN_DEPTH_MAX) {
801 pr_err("Passed cmdsn_depth: %u exceeds"
802 " TA_DEFAULT_CMDSN_DEPTH_MAX: %u\n", cmdsn_depth,
803 TA_DEFAULT_CMDSN_DEPTH_MAX);
804 return -EINVAL;
805 }
806 acl_ci = &se_nacl->acl_group.cg_item;
807 if (!acl_ci) {
808 pr_err("Unable to locatel acl_ci\n");
809 return -EINVAL;
810 }
811 tpg_ci = &acl_ci->ci_parent->ci_group->cg_item;
812 if (!tpg_ci) {
813 pr_err("Unable to locate tpg_ci\n");
814 return -EINVAL;
815 }
816 wwn_ci = &tpg_ci->ci_group->cg_item;
817 if (!wwn_ci) {
818 pr_err("Unable to locate config_item wwn_ci\n");
819 return -EINVAL;
820 }
821
822 if (iscsit_get_tpg(tpg) < 0)
823 return -EINVAL;
824 /*
825 * iscsit_tpg_set_initiator_node_queue_depth() assumes force=1
826 */
827 ret = iscsit_tpg_set_initiator_node_queue_depth(tpg,
828 config_item_name(acl_ci), cmdsn_depth, 1);
829
830 pr_debug("LIO_Target_ConfigFS: %s/%s Set CmdSN Window: %u for"
831 "InitiatorName: %s\n", config_item_name(wwn_ci),
832 config_item_name(tpg_ci), cmdsn_depth,
833 config_item_name(acl_ci));
834
835 iscsit_put_tpg(tpg);
836 return (!ret) ? count : (ssize_t)ret;
837}
838
839TF_NACL_BASE_ATTR(lio_target, cmdsn_depth, S_IRUGO | S_IWUSR);
840
79e62fc3
AG		 841static ssize_t lio_target_nacl_show_tag(
842 struct se_node_acl *se_nacl,
843 char *page)
844{
845 return snprintf(page, PAGE_SIZE, "%s", se_nacl->acl_tag);
846}
847
848static ssize_t lio_target_nacl_store_tag(
849 struct se_node_acl *se_nacl,
850 const char *page,
851 size_t count)
852{
853 int ret;
854
855 ret = core_tpg_set_initiator_node_tag(se_nacl->se_tpg, se_nacl, page);
856
857 if (ret < 0)
858 return ret;
859 return count;
860}
861
862TF_NACL_BASE_ATTR(lio_target, tag, S_IRUGO | S_IWUSR);
863
e48354ce
NB		 864static struct configfs_attribute *lio_target_initiator_attrs[] = {
865 &lio_target_nacl_info.attr,
866 &lio_target_nacl_cmdsn_depth.attr,
79e62fc3 867 &lio_target_nacl_tag.attr,
e48354ce
NB		 868 NULL,
869};
870
871static struct se_node_acl *lio_tpg_alloc_fabric_acl(
872 struct se_portal_group *se_tpg)
873{
874 struct iscsi_node_acl *acl;
875
876 acl = kzalloc(sizeof(struct iscsi_node_acl), GFP_KERNEL);
877 if (!acl) {
878 pr_err("Unable to allocate memory for struct iscsi_node_acl\n");
879 return NULL;
880 }
881
882 return &acl->se_node_acl;
883}
884
885static struct se_node_acl *lio_target_make_nodeacl(
886 struct se_portal_group *se_tpg,
887 struct config_group *group,
888 const char *name)
889{
890 struct config_group *stats_cg;
891 struct iscsi_node_acl *acl;
892 struct se_node_acl *se_nacl_new, *se_nacl;
893 struct iscsi_portal_group *tpg = container_of(se_tpg,
894 struct iscsi_portal_group, tpg_se_tpg);
895 u32 cmdsn_depth;
896
897 se_nacl_new = lio_tpg_alloc_fabric_acl(se_tpg);
898 if (!se_nacl_new)
899 return ERR_PTR(-ENOMEM);
900
b7eec2cd 901 cmdsn_depth = tpg->tpg_attrib.default_cmdsn_depth;
e48354ce
NB		 902 /*
903 * se_nacl_new may be released by core_tpg_add_initiator_node_acl()
904 * when converting a NdoeACL from demo mode -> explict
905 */
906 se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new,
907 name, cmdsn_depth);
908 if (IS_ERR(se_nacl))
909 return se_nacl;
910
d0628334
NB		 911 acl = container_of(se_nacl, struct iscsi_node_acl, se_node_acl);
912 stats_cg = &se_nacl->acl_fabric_stat_group;
e48354ce 913
13f6a914 914 stats_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2,
e48354ce
NB		 915 GFP_KERNEL);
916 if (!stats_cg->default_groups) {
917 pr_err("Unable to allocate memory for"
918 " stats_cg->default_groups\n");
919 core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1);
920 kfree(acl);
921 return ERR_PTR(-ENOMEM);
922 }
923
b7eec2cd 924 stats_cg->default_groups[0] = &acl->node_stat_grps.iscsi_sess_stats_group;
e48354ce 925 stats_cg->default_groups[1] = NULL;
b7eec2cd 926 config_group_init_type_name(&acl->node_stat_grps.iscsi_sess_stats_group,
e48354ce
NB		 927 "iscsi_sess_stats", &iscsi_stat_sess_cit);
928
929 return se_nacl;
930}
931
932static void lio_target_drop_nodeacl(
933 struct se_node_acl *se_nacl)
934{
935 struct se_portal_group *se_tpg = se_nacl->se_tpg;
936 struct iscsi_node_acl *acl = container_of(se_nacl,
937 struct iscsi_node_acl, se_node_acl);
938 struct config_item *df_item;
939 struct config_group *stats_cg;
940 int i;
941
942 stats_cg = &acl->se_node_acl.acl_fabric_stat_group;
943 for (i = 0; stats_cg->default_groups[i]; i++) {
944 df_item = &stats_cg->default_groups[i]->cg_item;
945 stats_cg->default_groups[i] = NULL;
946 config_item_put(df_item);
947 }
948 kfree(stats_cg->default_groups);
949
950 core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1);
951 kfree(acl);
952}
953
954/* End items for lio_target_acl_cit */
955
956/* Start items for lio_target_tpg_attrib_cit */
957
958#define DEF_TPG_ATTRIB(name) \
959 \
960static ssize_t iscsi_tpg_attrib_show_##name( \
961 struct se_portal_group *se_tpg, \
962 char *page) \
963{ \
964 struct iscsi_portal_group *tpg = container_of(se_tpg, \
965 struct iscsi_portal_group, tpg_se_tpg); \
966 ssize_t rb; \
967 \
968 if (iscsit_get_tpg(tpg) < 0) \
969 return -EINVAL; \
970 \
b7eec2cd 971 rb = sprintf(page, "%u\n", tpg->tpg_attrib.name); \
e48354ce
NB		 972 iscsit_put_tpg(tpg); \
973 return rb; \
974} \
975 \
976static ssize_t iscsi_tpg_attrib_store_##name( \
977 struct se_portal_group *se_tpg, \
978 const char *page, \
979 size_t count) \
980{ \
981 struct iscsi_portal_group *tpg = container_of(se_tpg, \
982 struct iscsi_portal_group, tpg_se_tpg); \
e48354ce
NB		 983 u32 val; \
984 int ret; \
985 \
986 if (iscsit_get_tpg(tpg) < 0) \
987 return -EINVAL; \
988 \
ad7babd2
JE		 989 ret = kstrtou32(page, 0, &val); \
990 if (ret) \
991 goto out; \
e48354ce
NB		 992 ret = iscsit_ta_##name(tpg, val); \
993 if (ret < 0) \
994 goto out; \
995 \
996 iscsit_put_tpg(tpg); \
997 return count; \
998out: \
999 iscsit_put_tpg(tpg); \
1000 return ret; \
1001}
1002
1003#define TPG_ATTR(_name, _mode) TF_TPG_ATTRIB_ATTR(iscsi, _name, _mode);
1004
1005/*
1006 * Define iscsi_tpg_attrib_s_authentication
1007 */
1008DEF_TPG_ATTRIB(authentication);
1009TPG_ATTR(authentication, S_IRUGO | S_IWUSR);
1010/*
1011 * Define iscsi_tpg_attrib_s_login_timeout
1012 */
1013DEF_TPG_ATTRIB(login_timeout);
1014TPG_ATTR(login_timeout, S_IRUGO | S_IWUSR);
1015/*
1016 * Define iscsi_tpg_attrib_s_netif_timeout
1017 */
1018DEF_TPG_ATTRIB(netif_timeout);
1019TPG_ATTR(netif_timeout, S_IRUGO | S_IWUSR);
1020/*
1021 * Define iscsi_tpg_attrib_s_generate_node_acls
1022 */
1023DEF_TPG_ATTRIB(generate_node_acls);
1024TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR);
1025/*
1026 * Define iscsi_tpg_attrib_s_default_cmdsn_depth
1027 */
1028DEF_TPG_ATTRIB(default_cmdsn_depth);
1029TPG_ATTR(default_cmdsn_depth, S_IRUGO | S_IWUSR);
1030/*
1031 Define iscsi_tpg_attrib_s_cache_dynamic_acls
1032 */
1033DEF_TPG_ATTRIB(cache_dynamic_acls);
1034TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR);
1035/*
1036 * Define iscsi_tpg_attrib_s_demo_mode_write_protect
1037 */
1038DEF_TPG_ATTRIB(demo_mode_write_protect);
1039TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR);
1040/*
1041 * Define iscsi_tpg_attrib_s_prod_mode_write_protect
1042 */
1043DEF_TPG_ATTRIB(prod_mode_write_protect);
1044TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR);
4c54b6cf
TG		 1045/*
1046 * Define iscsi_tpg_attrib_s_demo_mode_discovery,
1047 */
1048DEF_TPG_ATTRIB(demo_mode_discovery);
1049TPG_ATTR(demo_mode_discovery, S_IRUGO | S_IWUSR);
d1fa7a1d
NB		 1050/*
1051 * Define iscsi_tpg_attrib_s_default_erl
1052 */
1053DEF_TPG_ATTRIB(default_erl);
1054TPG_ATTR(default_erl, S_IRUGO | S_IWUSR);
e48354ce
NB		 1055
1056static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
1057 &iscsi_tpg_attrib_authentication.attr,
1058 &iscsi_tpg_attrib_login_timeout.attr,
1059 &iscsi_tpg_attrib_netif_timeout.attr,
1060 &iscsi_tpg_attrib_generate_node_acls.attr,
1061 &iscsi_tpg_attrib_default_cmdsn_depth.attr,
1062 &iscsi_tpg_attrib_cache_dynamic_acls.attr,
1063 &iscsi_tpg_attrib_demo_mode_write_protect.attr,
1064 &iscsi_tpg_attrib_prod_mode_write_protect.attr,
4c54b6cf 1065 &iscsi_tpg_attrib_demo_mode_discovery.attr,
d1fa7a1d 1066 &iscsi_tpg_attrib_default_erl.attr,
e48354ce
NB		 1067 NULL,
1068};
1069
1070/* End items for lio_target_tpg_attrib_cit */
1071
c3e51442
NB		 1072/* Start items for lio_target_tpg_auth_cit */
1073
1074#define __DEF_TPG_AUTH_STR(prefix, name, flags) \
1075static ssize_t __iscsi_##prefix##_show_##name( \
1076 struct se_portal_group *se_tpg, \
1077 char *page) \
1078{ \
1079 struct iscsi_portal_group *tpg = container_of(se_tpg, \
1080 struct iscsi_portal_group, tpg_se_tpg); \
1081 struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \
1082 \
1083 if (!capable(CAP_SYS_ADMIN)) \
1084 return -EPERM; \
1085 \
1086 return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \
1087} \
1088 \
1089static ssize_t __iscsi_##prefix##_store_##name( \
1090 struct se_portal_group *se_tpg, \
1091 const char *page, \
1092 size_t count) \
1093{ \
1094 struct iscsi_portal_group *tpg = container_of(se_tpg, \
1095 struct iscsi_portal_group, tpg_se_tpg); \
1096 struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \
1097 \
1098 if (!capable(CAP_SYS_ADMIN)) \
1099 return -EPERM; \
1100 \
37b32c6f 1101 snprintf(auth->name, sizeof(auth->name), "%s", page); \
c3e51442
NB		 1102 if (!(strncmp("NULL", auth->name, 4))) \
1103 auth->naf_flags &= ~flags; \
1104 else \
1105 auth->naf_flags |= flags; \
1106 \
1107 if ((auth->naf_flags & NAF_USERID_IN_SET) && \
1108 (auth->naf_flags & NAF_PASSWORD_IN_SET)) \
1109 auth->authenticate_target = 1; \
1110 else \
1111 auth->authenticate_target = 0; \
1112 \
1113 return count; \
1114}
1115
1116#define __DEF_TPG_AUTH_INT(prefix, name) \
1117static ssize_t __iscsi_##prefix##_show_##name( \
1118 struct se_portal_group *se_tpg, \
1119 char *page) \
1120{ \
1121 struct iscsi_portal_group *tpg = container_of(se_tpg, \
1122 struct iscsi_portal_group, tpg_se_tpg); \
1123 struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \
1124 \
1125 if (!capable(CAP_SYS_ADMIN)) \
1126 return -EPERM; \
1127 \
1128 return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \
1129}
1130
1131#define DEF_TPG_AUTH_STR(name, flags) \
1132 __DEF_TPG_AUTH_STR(tpg_auth, name, flags) \
1133static ssize_t iscsi_tpg_auth_show_##name( \
1134 struct se_portal_group *se_tpg, \
1135 char *page) \
1136{ \
1137 return __iscsi_tpg_auth_show_##name(se_tpg, page); \
1138} \
1139 \
1140static ssize_t iscsi_tpg_auth_store_##name( \
1141 struct se_portal_group *se_tpg, \
1142 const char *page, \
1143 size_t count) \
1144{ \
1145 return __iscsi_tpg_auth_store_##name(se_tpg, page, count); \
1146}
1147
1148#define DEF_TPG_AUTH_INT(name) \
1149 __DEF_TPG_AUTH_INT(tpg_auth, name) \
1150static ssize_t iscsi_tpg_auth_show_##name( \
1151 struct se_portal_group *se_tpg, \
1152 char *page) \
1153{ \
1154 return __iscsi_tpg_auth_show_##name(se_tpg, page); \
1155}
1156
1157#define TPG_AUTH_ATTR(_name, _mode) TF_TPG_AUTH_ATTR(iscsi, _name, _mode);
1158#define TPG_AUTH_ATTR_RO(_name) TF_TPG_AUTH_ATTR_RO(iscsi, _name);
1159
1160/*
1161 * * One-way authentication userid
1162 * */
1163DEF_TPG_AUTH_STR(userid, NAF_USERID_SET);
1164TPG_AUTH_ATTR(userid, S_IRUGO | S_IWUSR);
1165/*
1166 * * One-way authentication password
1167 * */
1168DEF_TPG_AUTH_STR(password, NAF_PASSWORD_SET);
1169TPG_AUTH_ATTR(password, S_IRUGO | S_IWUSR);
1170/*
1171 * * Enforce mutual authentication
1172 * */
1173DEF_TPG_AUTH_INT(authenticate_target);
1174TPG_AUTH_ATTR_RO(authenticate_target);
1175/*
1176 * * Mutual authentication userid
1177 * */
1178DEF_TPG_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
1179TPG_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR);
1180/*
1181 * * Mutual authentication password
1182 * */
1183DEF_TPG_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
1184TPG_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR);
1185
1186static struct configfs_attribute *lio_target_tpg_auth_attrs[] = {
1187 &iscsi_tpg_auth_userid.attr,
1188 &iscsi_tpg_auth_password.attr,
1189 &iscsi_tpg_auth_authenticate_target.attr,
1190 &iscsi_tpg_auth_userid_mutual.attr,
1191 &iscsi_tpg_auth_password_mutual.attr,
1192 NULL,
1193};
1194
1195/* End items for lio_target_tpg_auth_cit */
1196
e48354ce
NB		 1197/* Start items for lio_target_tpg_param_cit */
1198
1199#define DEF_TPG_PARAM(name) \
1200static ssize_t iscsi_tpg_param_show_##name( \
1201 struct se_portal_group *se_tpg, \
1202 char *page) \
1203{ \
1204 struct iscsi_portal_group *tpg = container_of(se_tpg, \
1205 struct iscsi_portal_group, tpg_se_tpg); \
1206 struct iscsi_param *param; \
1207 ssize_t rb; \
1208 \
1209 if (iscsit_get_tpg(tpg) < 0) \
1210 return -EINVAL; \
1211 \
1212 param = iscsi_find_param_from_key(__stringify(name), \
1213 tpg->param_list); \
1214 if (!param) { \
1215 iscsit_put_tpg(tpg); \
1216 return -EINVAL; \
1217 } \
1218 rb = snprintf(page, PAGE_SIZE, "%s\n", param->value); \
1219 \
1220 iscsit_put_tpg(tpg); \
1221 return rb; \
1222} \
1223static ssize_t iscsi_tpg_param_store_##name( \
1224 struct se_portal_group *se_tpg, \
1225 const char *page, \
1226 size_t count) \
1227{ \
1228 struct iscsi_portal_group *tpg = container_of(se_tpg, \
1229 struct iscsi_portal_group, tpg_se_tpg); \
1230 char *buf; \
ad7babd2 1231 int ret, len; \
e48354ce
NB		 1232 \
1233 buf = kzalloc(PAGE_SIZE, GFP_KERNEL); \
1234 if (!buf) \
1235 return -ENOMEM; \
ad7babd2
JE		 1236 len = snprintf(buf, PAGE_SIZE, "%s=%s", __stringify(name), page); \
1237 if (isspace(buf[len-1])) \
1238 buf[len-1] = '\0'; /* Kill newline */ \
e48354ce
NB		 1239 \
1240 if (iscsit_get_tpg(tpg) < 0) { \
1241 kfree(buf); \
1242 return -EINVAL; \
1243 } \
1244 \
1245 ret = iscsi_change_param_value(buf, tpg->param_list, 1); \
1246 if (ret < 0) \
1247 goto out; \
1248 \
1249 kfree(buf); \
1250 iscsit_put_tpg(tpg); \
1251 return count; \
1252out: \
1253 kfree(buf); \
1254 iscsit_put_tpg(tpg); \
1255 return -EINVAL; \
1256}
1257
1258#define TPG_PARAM_ATTR(_name, _mode) TF_TPG_PARAM_ATTR(iscsi, _name, _mode);
1259
1260DEF_TPG_PARAM(AuthMethod);
1261TPG_PARAM_ATTR(AuthMethod, S_IRUGO | S_IWUSR);
1262
1263DEF_TPG_PARAM(HeaderDigest);
1264TPG_PARAM_ATTR(HeaderDigest, S_IRUGO | S_IWUSR);
1265
1266DEF_TPG_PARAM(DataDigest);
1267TPG_PARAM_ATTR(DataDigest, S_IRUGO | S_IWUSR);
1268
1269DEF_TPG_PARAM(MaxConnections);
1270TPG_PARAM_ATTR(MaxConnections, S_IRUGO | S_IWUSR);
1271
1272DEF_TPG_PARAM(TargetAlias);
1273TPG_PARAM_ATTR(TargetAlias, S_IRUGO | S_IWUSR);
1274
1275DEF_TPG_PARAM(InitialR2T);
1276TPG_PARAM_ATTR(InitialR2T, S_IRUGO | S_IWUSR);
1277
1278DEF_TPG_PARAM(ImmediateData);
1279TPG_PARAM_ATTR(ImmediateData, S_IRUGO | S_IWUSR);
1280
1281DEF_TPG_PARAM(MaxRecvDataSegmentLength);
1282TPG_PARAM_ATTR(MaxRecvDataSegmentLength, S_IRUGO | S_IWUSR);
1283
e004cb25
NB		 1284DEF_TPG_PARAM(MaxXmitDataSegmentLength);
1285TPG_PARAM_ATTR(MaxXmitDataSegmentLength, S_IRUGO | S_IWUSR);
1286
e48354ce
NB		 1287DEF_TPG_PARAM(MaxBurstLength);
1288TPG_PARAM_ATTR(MaxBurstLength, S_IRUGO | S_IWUSR);
1289
1290DEF_TPG_PARAM(FirstBurstLength);
1291TPG_PARAM_ATTR(FirstBurstLength, S_IRUGO | S_IWUSR);
1292
1293DEF_TPG_PARAM(DefaultTime2Wait);
1294TPG_PARAM_ATTR(DefaultTime2Wait, S_IRUGO | S_IWUSR);
1295
1296DEF_TPG_PARAM(DefaultTime2Retain);
1297TPG_PARAM_ATTR(DefaultTime2Retain, S_IRUGO | S_IWUSR);
1298
1299DEF_TPG_PARAM(MaxOutstandingR2T);
1300TPG_PARAM_ATTR(MaxOutstandingR2T, S_IRUGO | S_IWUSR);
1301
1302DEF_TPG_PARAM(DataPDUInOrder);
1303TPG_PARAM_ATTR(DataPDUInOrder, S_IRUGO | S_IWUSR);
1304
1305DEF_TPG_PARAM(DataSequenceInOrder);
1306TPG_PARAM_ATTR(DataSequenceInOrder, S_IRUGO | S_IWUSR);
1307
1308DEF_TPG_PARAM(ErrorRecoveryLevel);
1309TPG_PARAM_ATTR(ErrorRecoveryLevel, S_IRUGO | S_IWUSR);
1310
1311DEF_TPG_PARAM(IFMarker);
1312TPG_PARAM_ATTR(IFMarker, S_IRUGO | S_IWUSR);
1313
1314DEF_TPG_PARAM(OFMarker);
1315TPG_PARAM_ATTR(OFMarker, S_IRUGO | S_IWUSR);
1316
1317DEF_TPG_PARAM(IFMarkInt);
1318TPG_PARAM_ATTR(IFMarkInt, S_IRUGO | S_IWUSR);
1319
1320DEF_TPG_PARAM(OFMarkInt);
1321TPG_PARAM_ATTR(OFMarkInt, S_IRUGO | S_IWUSR);
1322
1323static struct configfs_attribute *lio_target_tpg_param_attrs[] = {
1324 &iscsi_tpg_param_AuthMethod.attr,
1325 &iscsi_tpg_param_HeaderDigest.attr,
1326 &iscsi_tpg_param_DataDigest.attr,
1327 &iscsi_tpg_param_MaxConnections.attr,
1328 &iscsi_tpg_param_TargetAlias.attr,
1329 &iscsi_tpg_param_InitialR2T.attr,
1330 &iscsi_tpg_param_ImmediateData.attr,
1331 &iscsi_tpg_param_MaxRecvDataSegmentLength.attr,
e004cb25 1332 &iscsi_tpg_param_MaxXmitDataSegmentLength.attr,
e48354ce
NB		 1333 &iscsi_tpg_param_MaxBurstLength.attr,
1334 &iscsi_tpg_param_FirstBurstLength.attr,
1335 &iscsi_tpg_param_DefaultTime2Wait.attr,
1336 &iscsi_tpg_param_DefaultTime2Retain.attr,
1337 &iscsi_tpg_param_MaxOutstandingR2T.attr,
1338 &iscsi_tpg_param_DataPDUInOrder.attr,
1339 &iscsi_tpg_param_DataSequenceInOrder.attr,
1340 &iscsi_tpg_param_ErrorRecoveryLevel.attr,
1341 &iscsi_tpg_param_IFMarker.attr,
1342 &iscsi_tpg_param_OFMarker.attr,
1343 &iscsi_tpg_param_IFMarkInt.attr,
1344 &iscsi_tpg_param_OFMarkInt.attr,
1345 NULL,
1346};
1347
1348/* End items for lio_target_tpg_param_cit */
1349
1350/* Start items for lio_target_tpg_cit */
1351
1352static ssize_t lio_target_tpg_show_enable(
1353 struct se_portal_group *se_tpg,
1354 char *page)
1355{
1356 struct iscsi_portal_group *tpg = container_of(se_tpg,
1357 struct iscsi_portal_group, tpg_se_tpg);
1358 ssize_t len;
1359
1360 spin_lock(&tpg->tpg_state_lock);
1361 len = sprintf(page, "%d\n",
1362 (tpg->tpg_state == TPG_STATE_ACTIVE) ? 1 : 0);
1363 spin_unlock(&tpg->tpg_state_lock);
1364
1365 return len;
1366}
1367
1368static ssize_t lio_target_tpg_store_enable(
1369 struct se_portal_group *se_tpg,
1370 const char *page,
1371 size_t count)
1372{
1373 struct iscsi_portal_group *tpg = container_of(se_tpg,
1374 struct iscsi_portal_group, tpg_se_tpg);
e48354ce 1375 u32 op;
ad7babd2 1376 int ret;
e48354ce 1377
ad7babd2
JE		 1378 ret = kstrtou32(page, 0, &op);
1379 if (ret)
1380 return ret;
e48354ce
NB		 1381 if ((op != 1) && (op != 0)) {
1382 pr_err("Illegal value for tpg_enable: %u\n", op);
1383 return -EINVAL;
1384 }
1385
1386 ret = iscsit_get_tpg(tpg);
1387 if (ret < 0)
1388 return -EINVAL;
1389
1390 if (op) {
1391 ret = iscsit_tpg_enable_portal_group(tpg);
1392 if (ret < 0)
1393 goto out;
1394 } else {
1395 /*
1396 * iscsit_tpg_disable_portal_group() assumes force=1
1397 */
1398 ret = iscsit_tpg_disable_portal_group(tpg, 1);
1399 if (ret < 0)
1400 goto out;
1401 }
1402
1403 iscsit_put_tpg(tpg);
1404 return count;
1405out:
1406 iscsit_put_tpg(tpg);
1407 return -EINVAL;
1408}
1409
1410TF_TPG_BASE_ATTR(lio_target, enable, S_IRUGO | S_IWUSR);
1411
1412static struct configfs_attribute *lio_target_tpg_attrs[] = {
1413 &lio_target_tpg_enable.attr,
1414 NULL,
1415};
1416
1417/* End items for lio_target_tpg_cit */
1418
1419/* Start items for lio_target_tiqn_cit */
1420
fceb5bc7 1421static struct se_portal_group *lio_target_tiqn_addtpg(
e48354ce
NB		 1422 struct se_wwn *wwn,
1423 struct config_group *group,
1424 const char *name)
1425{
1426 struct iscsi_portal_group *tpg;
1427 struct iscsi_tiqn *tiqn;
ad7babd2
JE		 1428 char *tpgt_str;
1429 int ret;
1430 u16 tpgt;
e48354ce
NB		 1431
1432 tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
1433 /*
1434 * Only tpgt_# directory groups can be created below
1435 * target/iscsi/iqn.superturodiskarry/
ad7babd2 1436 */
e48354ce
NB		 1437 tpgt_str = strstr(name, "tpgt_");
1438 if (!tpgt_str) {
1439 pr_err("Unable to locate \"tpgt_#\" directory"
1440 " group\n");
1441 return NULL;
1442 }
1443 tpgt_str += 5; /* Skip ahead of "tpgt_" */
ad7babd2
JE		 1444 ret = kstrtou16(tpgt_str, 0, &tpgt);
1445 if (ret)
1446 return NULL;
e48354ce
NB		 1447
1448 tpg = iscsit_alloc_portal_group(tiqn, tpgt);
1449 if (!tpg)
1450 return NULL;
1451
1452 ret = core_tpg_register(
1453 &lio_target_fabric_configfs->tf_ops,
8359cf43 1454 wwn, &tpg->tpg_se_tpg, tpg,
e48354ce
NB		 1455 TRANSPORT_TPG_TYPE_NORMAL);
1456 if (ret < 0)
1457 return NULL;
1458
1459 ret = iscsit_tpg_add_portal_group(tiqn, tpg);
1460 if (ret != 0)
1461 goto out;
1462
1463 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn);
1464 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated TPG: %s\n",
1465 name);
1466 return &tpg->tpg_se_tpg;
1467out:
1468 core_tpg_deregister(&tpg->tpg_se_tpg);
1469 kfree(tpg);
1470 return NULL;
1471}
1472
fceb5bc7 1473static void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg)
e48354ce
NB		 1474{
1475 struct iscsi_portal_group *tpg;
1476 struct iscsi_tiqn *tiqn;
1477
1478 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg);
1479 tiqn = tpg->tpg_tiqn;
1480 /*
1481 * iscsit_tpg_del_portal_group() assumes force=1
1482 */
1483 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> Releasing TPG\n");
1484 iscsit_tpg_del_portal_group(tiqn, tpg, 1);
1485}
1486
1487/* End items for lio_target_tiqn_cit */
1488
1489/* Start LIO-Target TIQN struct contig_item lio_target_cit */
1490
1491static ssize_t lio_target_wwn_show_attr_lio_version(
1492 struct target_fabric_configfs *tf,
1493 char *page)
1494{
4c76251e 1495 return sprintf(page, "Datera Inc. iSCSI Target "ISCSIT_VERSION"\n");
e48354ce
NB		 1496}
1497
1498TF_WWN_ATTR_RO(lio_target, lio_version);
1499
1500static struct configfs_attribute *lio_target_wwn_attrs[] = {
1501 &lio_target_wwn_lio_version.attr,
1502 NULL,
1503};
1504
fceb5bc7 1505static struct se_wwn *lio_target_call_coreaddtiqn(
e48354ce
NB		 1506 struct target_fabric_configfs *tf,
1507 struct config_group *group,
1508 const char *name)
1509{
1510 struct config_group *stats_cg;
1511 struct iscsi_tiqn *tiqn;
1512
1513 tiqn = iscsit_add_tiqn((unsigned char *)name);
1514 if (IS_ERR(tiqn))
e1750ba2 1515 return ERR_CAST(tiqn);
e48354ce
NB		 1516 /*
1517 * Setup struct iscsi_wwn_stat_grps for se_wwn->fabric_stat_group.
1518 */
1519 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group;
1520
13f6a914 1521 stats_cg->default_groups = kmalloc(sizeof(struct config_group *) * 6,
e48354ce
NB		 1522 GFP_KERNEL);
1523 if (!stats_cg->default_groups) {
1524 pr_err("Unable to allocate memory for"
1525 " stats_cg->default_groups\n");
1526 iscsit_del_tiqn(tiqn);
1527 return ERR_PTR(-ENOMEM);
1528 }
1529
b7eec2cd
AG		 1530 stats_cg->default_groups[0] = &tiqn->tiqn_stat_grps.iscsi_instance_group;
1531 stats_cg->default_groups[1] = &tiqn->tiqn_stat_grps.iscsi_sess_err_group;
1532 stats_cg->default_groups[2] = &tiqn->tiqn_stat_grps.iscsi_tgt_attr_group;
1533 stats_cg->default_groups[3] = &tiqn->tiqn_stat_grps.iscsi_login_stats_group;
1534 stats_cg->default_groups[4] = &tiqn->tiqn_stat_grps.iscsi_logout_stats_group;
e48354ce 1535 stats_cg->default_groups[5] = NULL;
b7eec2cd 1536 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_instance_group,
e48354ce 1537 "iscsi_instance", &iscsi_stat_instance_cit);
b7eec2cd 1538 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_sess_err_group,
e48354ce 1539 "iscsi_sess_err", &iscsi_stat_sess_err_cit);
b7eec2cd 1540 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_tgt_attr_group,
e48354ce 1541 "iscsi_tgt_attr", &iscsi_stat_tgt_attr_cit);
b7eec2cd 1542 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_login_stats_group,
e48354ce 1543 "iscsi_login_stats", &iscsi_stat_login_cit);
b7eec2cd 1544 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_logout_stats_group,
e48354ce
NB		 1545 "iscsi_logout_stats", &iscsi_stat_logout_cit);
1546
1547 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn);
1548 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated Node:"
1549 " %s\n", name);
1550 return &tiqn->tiqn_wwn;
1551}
1552
fceb5bc7 1553static void lio_target_call_coredeltiqn(
e48354ce
NB		 1554 struct se_wwn *wwn)
1555{
1556 struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn);
1557 struct config_item *df_item;
1558 struct config_group *stats_cg;
1559 int i;
1560
1561 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group;
1562 for (i = 0; stats_cg->default_groups[i]; i++) {
1563 df_item = &stats_cg->default_groups[i]->cg_item;
1564 stats_cg->default_groups[i] = NULL;
1565 config_item_put(df_item);
1566 }
1567 kfree(stats_cg->default_groups);
1568
1569 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s\n",
1570 tiqn->tiqn);
1571 iscsit_del_tiqn(tiqn);
1572}
1573
1574/* End LIO-Target TIQN struct contig_lio_target_cit */
1575
1576/* Start lio_target_discovery_auth_cit */
1577
1578#define DEF_DISC_AUTH_STR(name, flags) \
1579 __DEF_NACL_AUTH_STR(disc, name, flags) \
1580static ssize_t iscsi_disc_show_##name( \
1581 struct target_fabric_configfs *tf, \
1582 char *page) \
1583{ \
1584 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \
1585 page); \
1586} \
1587static ssize_t iscsi_disc_store_##name( \
1588 struct target_fabric_configfs *tf, \
1589 const char *page, \
1590 size_t count) \
1591{ \
1592 return __iscsi_disc_store_##name(&iscsit_global->discovery_acl, \
1593 page, count); \
1594}
1595
1596#define DEF_DISC_AUTH_INT(name) \
1597 __DEF_NACL_AUTH_INT(disc, name) \
1598static ssize_t iscsi_disc_show_##name( \
1599 struct target_fabric_configfs *tf, \
1600 char *page) \
1601{ \
1602 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \
1603 page); \
1604}
1605
1606#define DISC_AUTH_ATTR(_name, _mode) TF_DISC_ATTR(iscsi, _name, _mode)
1607#define DISC_AUTH_ATTR_RO(_name) TF_DISC_ATTR_RO(iscsi, _name)
1608
1609/*
1610 * One-way authentication userid
1611 */
1612DEF_DISC_AUTH_STR(userid, NAF_USERID_SET);
1613DISC_AUTH_ATTR(userid, S_IRUGO | S_IWUSR);
1614/*
1615 * One-way authentication password
1616 */
1617DEF_DISC_AUTH_STR(password, NAF_PASSWORD_SET);
1618DISC_AUTH_ATTR(password, S_IRUGO | S_IWUSR);
1619/*
1620 * Enforce mutual authentication
1621 */
1622DEF_DISC_AUTH_INT(authenticate_target);
1623DISC_AUTH_ATTR_RO(authenticate_target);
1624/*
1625 * Mutual authentication userid
1626 */
1627DEF_DISC_AUTH_STR(userid_mutual, NAF_USERID_IN_SET);
1628DISC_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR);
1629/*
1630 * Mutual authentication password
1631 */
1632DEF_DISC_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET);
1633DISC_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR);
1634
1635/*
1636 * enforce_discovery_auth
1637 */
1638static ssize_t iscsi_disc_show_enforce_discovery_auth(
1639 struct target_fabric_configfs *tf,
1640 char *page)
1641{
1642 struct iscsi_node_auth *discovery_auth = &iscsit_global->discovery_acl.node_auth;
1643
1644 return sprintf(page, "%d\n", discovery_auth->enforce_discovery_auth);
1645}
1646
1647static ssize_t iscsi_disc_store_enforce_discovery_auth(
1648 struct target_fabric_configfs *tf,
1649 const char *page,
1650 size_t count)
1651{
1652 struct iscsi_param *param;
1653 struct iscsi_portal_group *discovery_tpg = iscsit_global->discovery_tpg;
e48354ce 1654 u32 op;
ad7babd2 1655 int err;
e48354ce 1656
ad7babd2
JE		 1657 err = kstrtou32(page, 0, &op);
1658 if (err)
1659 return -EINVAL;
e48354ce
NB		 1660 if ((op != 1) && (op != 0)) {
1661 pr_err("Illegal value for enforce_discovery_auth:"
1662 " %u\n", op);
1663 return -EINVAL;
1664 }
1665
1666 if (!discovery_tpg) {
1667 pr_err("iscsit_global->discovery_tpg is NULL\n");
1668 return -EINVAL;
1669 }
1670
1671 param = iscsi_find_param_from_key(AUTHMETHOD,
1672 discovery_tpg->param_list);
1673 if (!param)
1674 return -EINVAL;
1675
1676 if (op) {
1677 /*
1678 * Reset the AuthMethod key to CHAP.
1679 */
1680 if (iscsi_update_param_value(param, CHAP) < 0)
1681 return -EINVAL;
1682
1683 discovery_tpg->tpg_attrib.authentication = 1;
1684 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 1;
1685 pr_debug("LIO-CORE[0] Successfully enabled"
1686 " authentication enforcement for iSCSI"
1687 " Discovery TPG\n");
1688 } else {
1689 /*
1690 * Reset the AuthMethod key to CHAP,None
1691 */
1692 if (iscsi_update_param_value(param, "CHAP,None") < 0)
1693 return -EINVAL;
1694
1695 discovery_tpg->tpg_attrib.authentication = 0;
1696 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 0;
1697 pr_debug("LIO-CORE[0] Successfully disabled"
1698 " authentication enforcement for iSCSI"
1699 " Discovery TPG\n");
1700 }
1701
1702 return count;
1703}
1704
1705DISC_AUTH_ATTR(enforce_discovery_auth, S_IRUGO | S_IWUSR);
1706
1707static struct configfs_attribute *lio_target_discovery_auth_attrs[] = {
1708 &iscsi_disc_userid.attr,
1709 &iscsi_disc_password.attr,
1710 &iscsi_disc_authenticate_target.attr,
1711 &iscsi_disc_userid_mutual.attr,
1712 &iscsi_disc_password_mutual.attr,
1713 &iscsi_disc_enforce_discovery_auth.attr,
1714 NULL,
1715};
1716
1717/* End lio_target_discovery_auth_cit */
1718
1719/* Start functions for target_core_fabric_ops */
1720
1721static char *iscsi_get_fabric_name(void)
1722{
1723 return "iSCSI";
1724}
1725
1726static u32 iscsi_get_task_tag(struct se_cmd *se_cmd)
1727{
1728 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1729
66c7db68
CH		 1730 /* only used for printks or comparism with ->ref_task_tag */
1731 return (__force u32)cmd->init_task_tag;
e48354ce
NB		 1732}
1733
1734static int iscsi_get_cmd_state(struct se_cmd *se_cmd)
1735{
1736 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1737
1738 return cmd->i_state;
1739}
1740
e48354ce
NB		 1741static u32 lio_sess_get_index(struct se_session *se_sess)
1742{
1743 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1744
1745 return sess->session_index;
1746}
1747
1748static u32 lio_sess_get_initiator_sid(
1749 struct se_session *se_sess,
1750 unsigned char *buf,
1751 u32 size)
1752{
1753 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1754 /*
1755 * iSCSI Initiator Session Identifier from RFC-3720.
1756 */
1757 return snprintf(buf, size, "%02x%02x%02x%02x%02x%02x",
1758 sess->isid[0], sess->isid[1], sess->isid[2],
1759 sess->isid[3], sess->isid[4], sess->isid[5]);
1760}
1761
1762static int lio_queue_data_in(struct se_cmd *se_cmd)
1763{
1764 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1765
1766 cmd->i_state = ISTATE_SEND_DATAIN;
2ec5a8c1
NB		 1767 cmd->conn->conn_transport->iscsit_queue_data_in(cmd->conn, cmd);
1768
e48354ce
NB		 1769 return 0;
1770}
1771
1772static int lio_write_pending(struct se_cmd *se_cmd)
1773{
1774 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
3e1c81a9 1775 struct iscsi_conn *conn = cmd->conn;
e48354ce
NB		 1776
1777 if (!cmd->immediate_data && !cmd->unsolicited_data)
3e1c81a9 1778 return conn->conn_transport->iscsit_get_dataout(conn, cmd, false);
e48354ce
NB		 1779
1780 return 0;
1781}
1782
1783static int lio_write_pending_status(struct se_cmd *se_cmd)
1784{
1785 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1786 int ret;
1787
1788 spin_lock_bh(&cmd->istate_lock);
1789 ret = !(cmd->cmd_flags & ICF_GOT_LAST_DATAOUT);
1790 spin_unlock_bh(&cmd->istate_lock);
1791
1792 return ret;
1793}
1794
1795static int lio_queue_status(struct se_cmd *se_cmd)
1796{
1797 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1798
1799 cmd->i_state = ISTATE_SEND_STATUS;
5e8e6b4b
NB		 1800
1801 if (cmd->se_cmd.scsi_status || cmd->sense_reason) {
1802 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
1803 return 0;
1804 }
2ec5a8c1
NB		 1805 cmd->conn->conn_transport->iscsit_queue_status(cmd->conn, cmd);
1806
e48354ce
NB		 1807 return 0;
1808}
1809
b79fafac 1810static void lio_queue_tm_rsp(struct se_cmd *se_cmd)
e48354ce
NB		 1811{
1812 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1813
1814 cmd->i_state = ISTATE_SEND_TASKMGTRSP;
1815 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
e48354ce
NB		 1816}
1817
1818static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg)
1819{
1820 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1821
1822 return &tpg->tpg_tiqn->tiqn[0];
1823}
1824
1825static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg)
1826{
1827 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1828
1829 return tpg->tpgt;
1830}
1831
1832static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg)
1833{
1834 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1835
b7eec2cd 1836 return tpg->tpg_attrib.default_cmdsn_depth;
e48354ce
NB		 1837}
1838
1839static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg)
1840{
1841 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1842
b7eec2cd 1843 return tpg->tpg_attrib.generate_node_acls;
e48354ce
NB		 1844}
1845
1846static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg)
1847{
1848 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1849
b7eec2cd 1850 return tpg->tpg_attrib.cache_dynamic_acls;
e48354ce
NB		 1851}
1852
1853static int lio_tpg_check_demo_mode_write_protect(
1854 struct se_portal_group *se_tpg)
1855{
1856 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1857
b7eec2cd 1858 return tpg->tpg_attrib.demo_mode_write_protect;
e48354ce
NB		 1859}
1860
1861static int lio_tpg_check_prod_mode_write_protect(
1862 struct se_portal_group *se_tpg)
1863{
1864 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1865
b7eec2cd 1866 return tpg->tpg_attrib.prod_mode_write_protect;
e48354ce
NB		 1867}
1868
1869static void lio_tpg_release_fabric_acl(
1870 struct se_portal_group *se_tpg,
1871 struct se_node_acl *se_acl)
1872{
1873 struct iscsi_node_acl *acl = container_of(se_acl,
1874 struct iscsi_node_acl, se_node_acl);
1875 kfree(acl);
1876}
1877
1878/*
1879 * Called with spin_lock_bh(struct se_portal_group->session_lock) held..
1880 *
1881 * Also, this function calls iscsit_inc_session_usage_count() on the
1882 * struct iscsi_session in question.
1883 */
1884static int lio_tpg_shutdown_session(struct se_session *se_sess)
1885{
1886 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1887
1888 spin_lock(&sess->conn_lock);
1889 if (atomic_read(&sess->session_fall_back_to_erl0) ||
1890 atomic_read(&sess->session_logout) ||
1891 (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) {
1892 spin_unlock(&sess->conn_lock);
1893 return 0;
1894 }
1895 atomic_set(&sess->session_reinstatement, 1);
1896 spin_unlock(&sess->conn_lock);
1897
e48354ce 1898 iscsit_stop_time2retain_timer(sess);
99367f01 1899 iscsit_stop_session(sess, 1, 1);
e48354ce
NB		 1900
1901 return 1;
1902}
1903
1904/*
1905 * Calls iscsit_dec_session_usage_count() as inverse of
1906 * lio_tpg_shutdown_session()
1907 */
1908static void lio_tpg_close_session(struct se_session *se_sess)
1909{
1910 struct iscsi_session *sess = se_sess->fabric_sess_ptr;
1911 /*
1912 * If the iSCSI Session for the iSCSI Initiator Node exists,
1913 * forcefully shutdown the iSCSI NEXUS.
1914 */
e48354ce
NB		 1915 iscsit_close_session(sess);
1916}
1917
e48354ce
NB		 1918static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg)
1919{
1920 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
1921
1922 return tpg->tpg_tiqn->tiqn_index;
1923}
1924
1925static void lio_set_default_node_attributes(struct se_node_acl *se_acl)
1926{
1927 struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl,
1928 se_node_acl);
d1fa7a1d
NB		 1929 struct se_portal_group *se_tpg = se_acl->se_tpg;
1930 struct iscsi_portal_group *tpg = container_of(se_tpg,
1931 struct iscsi_portal_group, tpg_se_tpg);
e48354ce 1932
b7eec2cd 1933 acl->node_attrib.nacl = acl;
d1fa7a1d 1934 iscsit_set_default_node_attribues(acl, tpg);
e48354ce
NB		 1935}
1936
3e1c81a9
NB		 1937static int lio_check_stop_free(struct se_cmd *se_cmd)
1938{
1939 return target_put_sess_cmd(se_cmd->se_sess, se_cmd);
1940}
1941
e48354ce
NB		 1942static void lio_release_cmd(struct se_cmd *se_cmd)
1943{
1944 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
1945
cdb72665 1946 pr_debug("Entering lio_release_cmd for se_cmd: %p\n", se_cmd);
d703ce2f 1947 iscsit_release_cmd(cmd);
e48354ce
NB		 1948}
1949
1950/* End functions for target_core_fabric_ops */
1951
1952int iscsi_target_register_configfs(void)
1953{
1954 struct target_fabric_configfs *fabric;
1955 int ret;
1956
1957 lio_target_fabric_configfs = NULL;
1958 fabric = target_fabric_configfs_init(THIS_MODULE, "iscsi");
1959 if (IS_ERR(fabric)) {
1960 pr_err("target_fabric_configfs_init() for"
1961 " LIO-Target failed!\n");
1962 return PTR_ERR(fabric);
1963 }
1964 /*
1965 * Setup the fabric API of function pointers used by target_core_mod..
1966 */
1967 fabric->tf_ops.get_fabric_name = &iscsi_get_fabric_name;
1968 fabric->tf_ops.get_fabric_proto_ident = &iscsi_get_fabric_proto_ident;
1969 fabric->tf_ops.tpg_get_wwn = &lio_tpg_get_endpoint_wwn;
1970 fabric->tf_ops.tpg_get_tag = &lio_tpg_get_tag;
1971 fabric->tf_ops.tpg_get_default_depth = &lio_tpg_get_default_depth;
1972 fabric->tf_ops.tpg_get_pr_transport_id = &iscsi_get_pr_transport_id;
1973 fabric->tf_ops.tpg_get_pr_transport_id_len =
1974 &iscsi_get_pr_transport_id_len;
1975 fabric->tf_ops.tpg_parse_pr_out_transport_id =
1976 &iscsi_parse_pr_out_transport_id;
1977 fabric->tf_ops.tpg_check_demo_mode = &lio_tpg_check_demo_mode;
1978 fabric->tf_ops.tpg_check_demo_mode_cache =
1979 &lio_tpg_check_demo_mode_cache;
1980 fabric->tf_ops.tpg_check_demo_mode_write_protect =
1981 &lio_tpg_check_demo_mode_write_protect;
1982 fabric->tf_ops.tpg_check_prod_mode_write_protect =
1983 &lio_tpg_check_prod_mode_write_protect;
1984 fabric->tf_ops.tpg_alloc_fabric_acl = &lio_tpg_alloc_fabric_acl;
1985 fabric->tf_ops.tpg_release_fabric_acl = &lio_tpg_release_fabric_acl;
1986 fabric->tf_ops.tpg_get_inst_index = &lio_tpg_get_inst_index;
3e1c81a9 1987 fabric->tf_ops.check_stop_free = &lio_check_stop_free,
e48354ce
NB		 1988 fabric->tf_ops.release_cmd = &lio_release_cmd;
1989 fabric->tf_ops.shutdown_session = &lio_tpg_shutdown_session;
1990 fabric->tf_ops.close_session = &lio_tpg_close_session;
e48354ce
NB		 1991 fabric->tf_ops.sess_get_index = &lio_sess_get_index;
1992 fabric->tf_ops.sess_get_initiator_sid = &lio_sess_get_initiator_sid;
1993 fabric->tf_ops.write_pending = &lio_write_pending;
1994 fabric->tf_ops.write_pending_status = &lio_write_pending_status;
1995 fabric->tf_ops.set_default_node_attributes =
1996 &lio_set_default_node_attributes;
1997 fabric->tf_ops.get_task_tag = &iscsi_get_task_tag;
1998 fabric->tf_ops.get_cmd_state = &iscsi_get_cmd_state;
1999 fabric->tf_ops.queue_data_in = &lio_queue_data_in;
2000 fabric->tf_ops.queue_status = &lio_queue_status;
2001 fabric->tf_ops.queue_tm_rsp = &lio_queue_tm_rsp;
e48354ce
NB		 2002 /*
2003 * Setup function pointers for generic logic in target_core_fabric_configfs.c
2004 */
2005 fabric->tf_ops.fabric_make_wwn = &lio_target_call_coreaddtiqn;
2006 fabric->tf_ops.fabric_drop_wwn = &lio_target_call_coredeltiqn;
2007 fabric->tf_ops.fabric_make_tpg = &lio_target_tiqn_addtpg;
2008 fabric->tf_ops.fabric_drop_tpg = &lio_target_tiqn_deltpg;
2009 fabric->tf_ops.fabric_post_link = NULL;
2010 fabric->tf_ops.fabric_pre_unlink = NULL;
2011 fabric->tf_ops.fabric_make_np = &lio_target_call_addnptotpg;
2012 fabric->tf_ops.fabric_drop_np = &lio_target_call_delnpfromtpg;
2013 fabric->tf_ops.fabric_make_nodeacl = &lio_target_make_nodeacl;
2014 fabric->tf_ops.fabric_drop_nodeacl = &lio_target_drop_nodeacl;
2015 /*
2016 * Setup default attribute lists for various fabric->tf_cit_tmpl
2017 * sturct config_item_type's
2018 */
d80e224d
AG		 2019 fabric->tf_cit_tmpl.tfc_discovery_cit.ct_attrs = lio_target_discovery_auth_attrs;
2020 fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = lio_target_wwn_attrs;
2021 fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = lio_target_tpg_attrs;
2022 fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs = lio_target_tpg_attrib_attrs;
2023 fabric->tf_cit_tmpl.tfc_tpg_auth_cit.ct_attrs = lio_target_tpg_auth_attrs;
2024 fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = lio_target_tpg_param_attrs;
2025 fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = lio_target_portal_attrs;
2026 fabric->tf_cit_tmpl.tfc_tpg_nacl_base_cit.ct_attrs = lio_target_initiator_attrs;
2027 fabric->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit.ct_attrs = lio_target_nacl_attrib_attrs;
2028 fabric->tf_cit_tmpl.tfc_tpg_nacl_auth_cit.ct_attrs = lio_target_nacl_auth_attrs;
2029 fabric->tf_cit_tmpl.tfc_tpg_nacl_param_cit.ct_attrs = lio_target_nacl_param_attrs;
e48354ce
NB		 2030
2031 ret = target_fabric_configfs_register(fabric);
2032 if (ret < 0) {
2033 pr_err("target_fabric_configfs_register() for"
2034 " LIO-Target failed!\n");
2035 target_fabric_configfs_free(fabric);
2036 return ret;
2037 }
2038
2039 lio_target_fabric_configfs = fabric;
2040 pr_debug("LIO_TARGET[0] - Set fabric ->"
2041 " lio_target_fabric_configfs\n");
2042 return 0;
2043}
2044
2045
2046void iscsi_target_deregister_configfs(void)
2047{
2048 if (!lio_target_fabric_configfs)
2049 return;
2050 /*
2051 * Shutdown discovery sessions and disable discovery TPG
2052 */
2053 if (iscsit_global->discovery_tpg)
2054 iscsit_tpg_disable_portal_group(iscsit_global->discovery_tpg, 1);
2055
2056 target_fabric_configfs_deregister(lio_target_fabric_configfs);
2057 lio_target_fabric_configfs = NULL;
2058 pr_debug("LIO_TARGET[0] - Cleared"
2059 " lio_target_fabric_configfs\n");
2060}
Linux 6.x block layer and io_uring tree(s)