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19#include <target/target_core_base.h>
20#include <target/target_core_fabric.h>
21#include <target/target_core_configfs.h>
22
23#include "iscsi_target_core.h"
24#include "iscsi_target_erl0.h"
25#include "iscsi_target_login.h"
26#include "iscsi_target_nodeattrib.h"
27#include "iscsi_target_tpg.h"
28#include "iscsi_target_util.h"
29#include "iscsi_target.h"
30#include "iscsi_target_parameters.h"
31
32#include <target/iscsi/iscsi_transport.h>
33
34struct iscsi_portal_group *iscsit_alloc_portal_group(struct iscsi_tiqn *tiqn, u16 tpgt)
35{
36 struct iscsi_portal_group *tpg;
37
38 tpg = kzalloc(sizeof(struct iscsi_portal_group), GFP_KERNEL);
39 if (!tpg) {
40 pr_err("Unable to allocate struct iscsi_portal_group\n");
41 return NULL;
42 }
43
44 tpg->tpgt = tpgt;
45 tpg->tpg_state = TPG_STATE_FREE;
46 tpg->tpg_tiqn = tiqn;
47 INIT_LIST_HEAD(&tpg->tpg_gnp_list);
48 INIT_LIST_HEAD(&tpg->tpg_list);
49 mutex_init(&tpg->tpg_access_lock);
50 sema_init(&tpg->np_login_sem, 1);
51 spin_lock_init(&tpg->tpg_state_lock);
52 spin_lock_init(&tpg->tpg_np_lock);
53
54 return tpg;
55}
56
57static void iscsit_set_default_tpg_attribs(struct iscsi_portal_group *);
58
59int iscsit_load_discovery_tpg(void)
60{
61 struct iscsi_param *param;
62 struct iscsi_portal_group *tpg;
63 int ret;
64
65 tpg = iscsit_alloc_portal_group(NULL, 1);
66 if (!tpg) {
67 pr_err("Unable to allocate struct iscsi_portal_group\n");
68 return -1;
69 }
70
71 ret = core_tpg_register(
72 &lio_target_fabric_configfs->tf_ops,
73 NULL, &tpg->tpg_se_tpg, tpg,
74 TRANSPORT_TPG_TYPE_DISCOVERY);
75 if (ret < 0) {
76 kfree(tpg);
77 return -1;
78 }
79
80 tpg->sid = 1;
81 iscsit_set_default_tpg_attribs(tpg);
82
83 if (iscsi_create_default_params(&tpg->param_list) < 0)
84 goto out;
85
86
87
88
89
90
91 param = iscsi_find_param_from_key(AUTHMETHOD, tpg->param_list);
92 if (!param)
93 goto out;
94
95 if (iscsi_update_param_value(param, "CHAP,None") < 0)
96 goto out;
97
98 tpg->tpg_attrib.authentication = 0;
99
100 spin_lock(&tpg->tpg_state_lock);
101 tpg->tpg_state = TPG_STATE_ACTIVE;
102 spin_unlock(&tpg->tpg_state_lock);
103
104 iscsit_global->discovery_tpg = tpg;
105 pr_debug("CORE[0] - Allocated Discovery TPG\n");
106
107 return 0;
108out:
109 if (tpg->sid == 1)
110 core_tpg_deregister(&tpg->tpg_se_tpg);
111 kfree(tpg);
112 return -1;
113}
114
115void iscsit_release_discovery_tpg(void)
116{
117 struct iscsi_portal_group *tpg = iscsit_global->discovery_tpg;
118
119 if (!tpg)
120 return;
121
122 core_tpg_deregister(&tpg->tpg_se_tpg);
123
124 kfree(tpg);
125 iscsit_global->discovery_tpg = NULL;
126}
127
128struct iscsi_portal_group *iscsit_get_tpg_from_np(
129 struct iscsi_tiqn *tiqn,
130 struct iscsi_np *np,
131 struct iscsi_tpg_np **tpg_np_out)
132{
133 struct iscsi_portal_group *tpg = NULL;
134 struct iscsi_tpg_np *tpg_np;
135
136 spin_lock(&tiqn->tiqn_tpg_lock);
137 list_for_each_entry(tpg, &tiqn->tiqn_tpg_list, tpg_list) {
138
139 spin_lock(&tpg->tpg_state_lock);
140 if (tpg->tpg_state == TPG_STATE_FREE) {
141 spin_unlock(&tpg->tpg_state_lock);
142 continue;
143 }
144 spin_unlock(&tpg->tpg_state_lock);
145
146 spin_lock(&tpg->tpg_np_lock);
147 list_for_each_entry(tpg_np, &tpg->tpg_gnp_list, tpg_np_list) {
148 if (tpg_np->tpg_np == np) {
149 *tpg_np_out = tpg_np;
150 kref_get(&tpg_np->tpg_np_kref);
151 spin_unlock(&tpg->tpg_np_lock);
152 spin_unlock(&tiqn->tiqn_tpg_lock);
153 return tpg;
154 }
155 }
156 spin_unlock(&tpg->tpg_np_lock);
157 }
158 spin_unlock(&tiqn->tiqn_tpg_lock);
159
160 return NULL;
161}
162
163int iscsit_get_tpg(
164 struct iscsi_portal_group *tpg)
165{
166 int ret;
167
168 ret = mutex_lock_interruptible(&tpg->tpg_access_lock);
169 return ((ret != 0) || signal_pending(current)) ? -1 : 0;
170}
171
172void iscsit_put_tpg(struct iscsi_portal_group *tpg)
173{
174 mutex_unlock(&tpg->tpg_access_lock);
175}
176
177static void iscsit_clear_tpg_np_login_thread(
178 struct iscsi_tpg_np *tpg_np,
179 struct iscsi_portal_group *tpg,
180 bool shutdown)
181{
182 if (!tpg_np->tpg_np) {
183 pr_err("struct iscsi_tpg_np->tpg_np is NULL!\n");
184 return;
185 }
186
187 iscsit_reset_np_thread(tpg_np->tpg_np, tpg_np, tpg, shutdown);
188}
189
190void iscsit_clear_tpg_np_login_threads(
191 struct iscsi_portal_group *tpg,
192 bool shutdown)
193{
194 struct iscsi_tpg_np *tpg_np;
195
196 spin_lock(&tpg->tpg_np_lock);
197 list_for_each_entry(tpg_np, &tpg->tpg_gnp_list, tpg_np_list) {
198 if (!tpg_np->tpg_np) {
199 pr_err("struct iscsi_tpg_np->tpg_np is NULL!\n");
200 continue;
201 }
202 spin_unlock(&tpg->tpg_np_lock);
203 iscsit_clear_tpg_np_login_thread(tpg_np, tpg, shutdown);
204 spin_lock(&tpg->tpg_np_lock);
205 }
206 spin_unlock(&tpg->tpg_np_lock);
207}
208
209void iscsit_tpg_dump_params(struct iscsi_portal_group *tpg)
210{
211 iscsi_print_params(tpg->param_list);
212}
213
214static void iscsit_set_default_tpg_attribs(struct iscsi_portal_group *tpg)
215{
216 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
217
218 a->authentication = TA_AUTHENTICATION;
219 a->login_timeout = TA_LOGIN_TIMEOUT;
220 a->netif_timeout = TA_NETIF_TIMEOUT;
221 a->default_cmdsn_depth = TA_DEFAULT_CMDSN_DEPTH;
222 a->generate_node_acls = TA_GENERATE_NODE_ACLS;
223 a->cache_dynamic_acls = TA_CACHE_DYNAMIC_ACLS;
224 a->demo_mode_write_protect = TA_DEMO_MODE_WRITE_PROTECT;
225 a->prod_mode_write_protect = TA_PROD_MODE_WRITE_PROTECT;
226 a->demo_mode_discovery = TA_DEMO_MODE_DISCOVERY;
227 a->default_erl = TA_DEFAULT_ERL;
228}
229
230int iscsit_tpg_add_portal_group(struct iscsi_tiqn *tiqn, struct iscsi_portal_group *tpg)
231{
232 if (tpg->tpg_state != TPG_STATE_FREE) {
233 pr_err("Unable to add iSCSI Target Portal Group: %d"
234 " while not in TPG_STATE_FREE state.\n", tpg->tpgt);
235 return -EEXIST;
236 }
237 iscsit_set_default_tpg_attribs(tpg);
238
239 if (iscsi_create_default_params(&tpg->param_list) < 0)
240 goto err_out;
241
242 tpg->tpg_attrib.tpg = tpg;
243
244 spin_lock(&tpg->tpg_state_lock);
245 tpg->tpg_state = TPG_STATE_INACTIVE;
246 spin_unlock(&tpg->tpg_state_lock);
247
248 spin_lock(&tiqn->tiqn_tpg_lock);
249 list_add_tail(&tpg->tpg_list, &tiqn->tiqn_tpg_list);
250 tiqn->tiqn_ntpgs++;
251 pr_debug("CORE[%s]_TPG[%hu] - Added iSCSI Target Portal Group\n",
252 tiqn->tiqn, tpg->tpgt);
253 spin_unlock(&tiqn->tiqn_tpg_lock);
254
255 return 0;
256err_out:
257 if (tpg->param_list) {
258 iscsi_release_param_list(tpg->param_list);
259 tpg->param_list = NULL;
260 }
261 kfree(tpg);
262 return -ENOMEM;
263}
264
265int iscsit_tpg_del_portal_group(
266 struct iscsi_tiqn *tiqn,
267 struct iscsi_portal_group *tpg,
268 int force)
269{
270 u8 old_state = tpg->tpg_state;
271
272 spin_lock(&tpg->tpg_state_lock);
273 tpg->tpg_state = TPG_STATE_INACTIVE;
274 spin_unlock(&tpg->tpg_state_lock);
275
276 iscsit_clear_tpg_np_login_threads(tpg, true);
277
278 if (iscsit_release_sessions_for_tpg(tpg, force) < 0) {
279 pr_err("Unable to delete iSCSI Target Portal Group:"
280 " %hu while active sessions exist, and force=0\n",
281 tpg->tpgt);
282 tpg->tpg_state = old_state;
283 return -EPERM;
284 }
285
286 core_tpg_clear_object_luns(&tpg->tpg_se_tpg);
287
288 if (tpg->param_list) {
289 iscsi_release_param_list(tpg->param_list);
290 tpg->param_list = NULL;
291 }
292
293 core_tpg_deregister(&tpg->tpg_se_tpg);
294
295 spin_lock(&tpg->tpg_state_lock);
296 tpg->tpg_state = TPG_STATE_FREE;
297 spin_unlock(&tpg->tpg_state_lock);
298
299 spin_lock(&tiqn->tiqn_tpg_lock);
300 tiqn->tiqn_ntpgs--;
301 list_del(&tpg->tpg_list);
302 spin_unlock(&tiqn->tiqn_tpg_lock);
303
304 pr_debug("CORE[%s]_TPG[%hu] - Deleted iSCSI Target Portal Group\n",
305 tiqn->tiqn, tpg->tpgt);
306
307 kfree(tpg);
308 return 0;
309}
310
311int iscsit_tpg_enable_portal_group(struct iscsi_portal_group *tpg)
312{
313 struct iscsi_param *param;
314 struct iscsi_tiqn *tiqn = tpg->tpg_tiqn;
315 int ret;
316
317 spin_lock(&tpg->tpg_state_lock);
318 if (tpg->tpg_state == TPG_STATE_ACTIVE) {
319 pr_err("iSCSI target portal group: %hu is already"
320 " active, ignoring request.\n", tpg->tpgt);
321 spin_unlock(&tpg->tpg_state_lock);
322 return -EINVAL;
323 }
324
325
326
327
328
329 param = iscsi_find_param_from_key(AUTHMETHOD, tpg->param_list);
330 if (!param) {
331 spin_unlock(&tpg->tpg_state_lock);
332 return -EINVAL;
333 }
334
335 if (tpg->tpg_attrib.authentication) {
336 if (!strcmp(param->value, NONE)) {
337 ret = iscsi_update_param_value(param, CHAP);
338 if (ret)
339 goto err;
340 }
341
342 ret = iscsit_ta_authentication(tpg, 1);
343 if (ret < 0)
344 goto err;
345 }
346
347 tpg->tpg_state = TPG_STATE_ACTIVE;
348 spin_unlock(&tpg->tpg_state_lock);
349
350 spin_lock(&tiqn->tiqn_tpg_lock);
351 tiqn->tiqn_active_tpgs++;
352 pr_debug("iSCSI_TPG[%hu] - Enabled iSCSI Target Portal Group\n",
353 tpg->tpgt);
354 spin_unlock(&tiqn->tiqn_tpg_lock);
355
356 return 0;
357
358err:
359 spin_unlock(&tpg->tpg_state_lock);
360 return ret;
361}
362
363int iscsit_tpg_disable_portal_group(struct iscsi_portal_group *tpg, int force)
364{
365 struct iscsi_tiqn *tiqn;
366 u8 old_state = tpg->tpg_state;
367
368 spin_lock(&tpg->tpg_state_lock);
369 if (tpg->tpg_state == TPG_STATE_INACTIVE) {
370 pr_err("iSCSI Target Portal Group: %hu is already"
371 " inactive, ignoring request.\n", tpg->tpgt);
372 spin_unlock(&tpg->tpg_state_lock);
373 return -EINVAL;
374 }
375 tpg->tpg_state = TPG_STATE_INACTIVE;
376 spin_unlock(&tpg->tpg_state_lock);
377
378 iscsit_clear_tpg_np_login_threads(tpg, false);
379
380 if (iscsit_release_sessions_for_tpg(tpg, force) < 0) {
381 spin_lock(&tpg->tpg_state_lock);
382 tpg->tpg_state = old_state;
383 spin_unlock(&tpg->tpg_state_lock);
384 pr_err("Unable to disable iSCSI Target Portal Group:"
385 " %hu while active sessions exist, and force=0\n",
386 tpg->tpgt);
387 return -EPERM;
388 }
389
390 tiqn = tpg->tpg_tiqn;
391 if (!tiqn || (tpg == iscsit_global->discovery_tpg))
392 return 0;
393
394 spin_lock(&tiqn->tiqn_tpg_lock);
395 tiqn->tiqn_active_tpgs--;
396 pr_debug("iSCSI_TPG[%hu] - Disabled iSCSI Target Portal Group\n",
397 tpg->tpgt);
398 spin_unlock(&tiqn->tiqn_tpg_lock);
399
400 return 0;
401}
402
403struct iscsi_node_attrib *iscsit_tpg_get_node_attrib(
404 struct iscsi_session *sess)
405{
406 struct se_session *se_sess = sess->se_sess;
407 struct se_node_acl *se_nacl = se_sess->se_node_acl;
408 struct iscsi_node_acl *acl = container_of(se_nacl, struct iscsi_node_acl,
409 se_node_acl);
410
411 return &acl->node_attrib;
412}
413
414struct iscsi_tpg_np *iscsit_tpg_locate_child_np(
415 struct iscsi_tpg_np *tpg_np,
416 int network_transport)
417{
418 struct iscsi_tpg_np *tpg_np_child, *tpg_np_child_tmp;
419
420 spin_lock(&tpg_np->tpg_np_parent_lock);
421 list_for_each_entry_safe(tpg_np_child, tpg_np_child_tmp,
422 &tpg_np->tpg_np_parent_list, tpg_np_child_list) {
423 if (tpg_np_child->tpg_np->np_network_transport ==
424 network_transport) {
425 spin_unlock(&tpg_np->tpg_np_parent_lock);
426 return tpg_np_child;
427 }
428 }
429 spin_unlock(&tpg_np->tpg_np_parent_lock);
430
431 return NULL;
432}
433
434static bool iscsit_tpg_check_network_portal(
435 struct iscsi_tiqn *tiqn,
436 struct __kernel_sockaddr_storage *sockaddr,
437 int network_transport)
438{
439 struct iscsi_portal_group *tpg;
440 struct iscsi_tpg_np *tpg_np;
441 struct iscsi_np *np;
442 bool match = false;
443
444 spin_lock(&tiqn->tiqn_tpg_lock);
445 list_for_each_entry(tpg, &tiqn->tiqn_tpg_list, tpg_list) {
446
447 spin_lock(&tpg->tpg_np_lock);
448 list_for_each_entry(tpg_np, &tpg->tpg_gnp_list, tpg_np_list) {
449 np = tpg_np->tpg_np;
450
451 match = iscsit_check_np_match(sockaddr, np,
452 network_transport);
453 if (match == true)
454 break;
455 }
456 spin_unlock(&tpg->tpg_np_lock);
457 }
458 spin_unlock(&tiqn->tiqn_tpg_lock);
459
460 return match;
461}
462
463struct iscsi_tpg_np *iscsit_tpg_add_network_portal(
464 struct iscsi_portal_group *tpg,
465 struct __kernel_sockaddr_storage *sockaddr,
466 char *ip_str,
467 struct iscsi_tpg_np *tpg_np_parent,
468 int network_transport)
469{
470 struct iscsi_np *np;
471 struct iscsi_tpg_np *tpg_np;
472
473 if (!tpg_np_parent) {
474 if (iscsit_tpg_check_network_portal(tpg->tpg_tiqn, sockaddr,
475 network_transport) == true) {
476 pr_err("Network Portal: %s already exists on a"
477 " different TPG on %s\n", ip_str,
478 tpg->tpg_tiqn->tiqn);
479 return ERR_PTR(-EEXIST);
480 }
481 }
482
483 tpg_np = kzalloc(sizeof(struct iscsi_tpg_np), GFP_KERNEL);
484 if (!tpg_np) {
485 pr_err("Unable to allocate memory for"
486 " struct iscsi_tpg_np.\n");
487 return ERR_PTR(-ENOMEM);
488 }
489
490 np = iscsit_add_np(sockaddr, ip_str, network_transport);
491 if (IS_ERR(np)) {
492 kfree(tpg_np);
493 return ERR_CAST(np);
494 }
495
496 INIT_LIST_HEAD(&tpg_np->tpg_np_list);
497 INIT_LIST_HEAD(&tpg_np->tpg_np_child_list);
498 INIT_LIST_HEAD(&tpg_np->tpg_np_parent_list);
499 spin_lock_init(&tpg_np->tpg_np_parent_lock);
500 init_completion(&tpg_np->tpg_np_comp);
501 kref_init(&tpg_np->tpg_np_kref);
502 tpg_np->tpg_np = np;
503 tpg_np->tpg = tpg;
504
505 spin_lock(&tpg->tpg_np_lock);
506 list_add_tail(&tpg_np->tpg_np_list, &tpg->tpg_gnp_list);
507 tpg->num_tpg_nps++;
508 if (tpg->tpg_tiqn)
509 tpg->tpg_tiqn->tiqn_num_tpg_nps++;
510 spin_unlock(&tpg->tpg_np_lock);
511
512 if (tpg_np_parent) {
513 tpg_np->tpg_np_parent = tpg_np_parent;
514 spin_lock(&tpg_np_parent->tpg_np_parent_lock);
515 list_add_tail(&tpg_np->tpg_np_child_list,
516 &tpg_np_parent->tpg_np_parent_list);
517 spin_unlock(&tpg_np_parent->tpg_np_parent_lock);
518 }
519
520 pr_debug("CORE[%s] - Added Network Portal: %s:%hu,%hu on %s\n",
521 tpg->tpg_tiqn->tiqn, np->np_ip, np->np_port, tpg->tpgt,
522 np->np_transport->name);
523
524 return tpg_np;
525}
526
527static int iscsit_tpg_release_np(
528 struct iscsi_tpg_np *tpg_np,
529 struct iscsi_portal_group *tpg,
530 struct iscsi_np *np)
531{
532 iscsit_clear_tpg_np_login_thread(tpg_np, tpg, true);
533
534 pr_debug("CORE[%s] - Removed Network Portal: %s:%hu,%hu on %s\n",
535 tpg->tpg_tiqn->tiqn, np->np_ip, np->np_port, tpg->tpgt,
536 np->np_transport->name);
537
538 tpg_np->tpg_np = NULL;
539 tpg_np->tpg = NULL;
540 kfree(tpg_np);
541
542
543
544 return iscsit_del_np(np);
545}
546
547int iscsit_tpg_del_network_portal(
548 struct iscsi_portal_group *tpg,
549 struct iscsi_tpg_np *tpg_np)
550{
551 struct iscsi_np *np;
552 struct iscsi_tpg_np *tpg_np_child, *tpg_np_child_tmp;
553 int ret = 0;
554
555 np = tpg_np->tpg_np;
556 if (!np) {
557 pr_err("Unable to locate struct iscsi_np from"
558 " struct iscsi_tpg_np\n");
559 return -EINVAL;
560 }
561
562 if (!tpg_np->tpg_np_parent) {
563
564
565
566
567
568 list_for_each_entry_safe(tpg_np_child, tpg_np_child_tmp,
569 &tpg_np->tpg_np_parent_list,
570 tpg_np_child_list) {
571 ret = iscsit_tpg_del_network_portal(tpg, tpg_np_child);
572 if (ret < 0)
573 pr_err("iscsit_tpg_del_network_portal()"
574 " failed: %d\n", ret);
575 }
576 } else {
577
578
579
580
581 spin_lock(&tpg_np->tpg_np_parent->tpg_np_parent_lock);
582 list_del(&tpg_np->tpg_np_child_list);
583 spin_unlock(&tpg_np->tpg_np_parent->tpg_np_parent_lock);
584 }
585
586 spin_lock(&tpg->tpg_np_lock);
587 list_del(&tpg_np->tpg_np_list);
588 tpg->num_tpg_nps--;
589 if (tpg->tpg_tiqn)
590 tpg->tpg_tiqn->tiqn_num_tpg_nps--;
591 spin_unlock(&tpg->tpg_np_lock);
592
593 return iscsit_tpg_release_np(tpg_np, tpg, np);
594}
595
596int iscsit_tpg_set_initiator_node_queue_depth(
597 struct iscsi_portal_group *tpg,
598 unsigned char *initiatorname,
599 u32 queue_depth,
600 int force)
601{
602 return core_tpg_set_initiator_node_queue_depth(&tpg->tpg_se_tpg,
603 initiatorname, queue_depth, force);
604}
605
606int iscsit_ta_authentication(struct iscsi_portal_group *tpg, u32 authentication)
607{
608 unsigned char buf1[256], buf2[256], *none = NULL;
609 int len;
610 struct iscsi_param *param;
611 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
612
613 if ((authentication != 1) && (authentication != 0)) {
614 pr_err("Illegal value for authentication parameter:"
615 " %u, ignoring request.\n", authentication);
616 return -EINVAL;
617 }
618
619 memset(buf1, 0, sizeof(buf1));
620 memset(buf2, 0, sizeof(buf2));
621
622 param = iscsi_find_param_from_key(AUTHMETHOD, tpg->param_list);
623 if (!param)
624 return -EINVAL;
625
626 if (authentication) {
627 snprintf(buf1, sizeof(buf1), "%s", param->value);
628 none = strstr(buf1, NONE);
629 if (!none)
630 goto out;
631 if (!strncmp(none + 4, ",", 1)) {
632 if (!strcmp(buf1, none))
633 sprintf(buf2, "%s", none+5);
634 else {
635 none--;
636 *none = '\0';
637 len = sprintf(buf2, "%s", buf1);
638 none += 5;
639 sprintf(buf2 + len, "%s", none);
640 }
641 } else {
642 none--;
643 *none = '\0';
644 sprintf(buf2, "%s", buf1);
645 }
646 if (iscsi_update_param_value(param, buf2) < 0)
647 return -EINVAL;
648 } else {
649 snprintf(buf1, sizeof(buf1), "%s", param->value);
650 none = strstr(buf1, NONE);
651 if (none)
652 goto out;
653 strncat(buf1, ",", strlen(","));
654 strncat(buf1, NONE, strlen(NONE));
655 if (iscsi_update_param_value(param, buf1) < 0)
656 return -EINVAL;
657 }
658
659out:
660 a->authentication = authentication;
661 pr_debug("%s iSCSI Authentication Methods for TPG: %hu.\n",
662 a->authentication ? "Enforcing" : "Disabling", tpg->tpgt);
663
664 return 0;
665}
666
667int iscsit_ta_login_timeout(
668 struct iscsi_portal_group *tpg,
669 u32 login_timeout)
670{
671 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
672
673 if (login_timeout > TA_LOGIN_TIMEOUT_MAX) {
674 pr_err("Requested Login Timeout %u larger than maximum"
675 " %u\n", login_timeout, TA_LOGIN_TIMEOUT_MAX);
676 return -EINVAL;
677 } else if (login_timeout < TA_LOGIN_TIMEOUT_MIN) {
678 pr_err("Requested Logout Timeout %u smaller than"
679 " minimum %u\n", login_timeout, TA_LOGIN_TIMEOUT_MIN);
680 return -EINVAL;
681 }
682
683 a->login_timeout = login_timeout;
684 pr_debug("Set Logout Timeout to %u for Target Portal Group"
685 " %hu\n", a->login_timeout, tpg->tpgt);
686
687 return 0;
688}
689
690int iscsit_ta_netif_timeout(
691 struct iscsi_portal_group *tpg,
692 u32 netif_timeout)
693{
694 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
695
696 if (netif_timeout > TA_NETIF_TIMEOUT_MAX) {
697 pr_err("Requested Network Interface Timeout %u larger"
698 " than maximum %u\n", netif_timeout,
699 TA_NETIF_TIMEOUT_MAX);
700 return -EINVAL;
701 } else if (netif_timeout < TA_NETIF_TIMEOUT_MIN) {
702 pr_err("Requested Network Interface Timeout %u smaller"
703 " than minimum %u\n", netif_timeout,
704 TA_NETIF_TIMEOUT_MIN);
705 return -EINVAL;
706 }
707
708 a->netif_timeout = netif_timeout;
709 pr_debug("Set Network Interface Timeout to %u for"
710 " Target Portal Group %hu\n", a->netif_timeout, tpg->tpgt);
711
712 return 0;
713}
714
715int iscsit_ta_generate_node_acls(
716 struct iscsi_portal_group *tpg,
717 u32 flag)
718{
719 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
720
721 if ((flag != 0) && (flag != 1)) {
722 pr_err("Illegal value %d\n", flag);
723 return -EINVAL;
724 }
725
726 a->generate_node_acls = flag;
727 pr_debug("iSCSI_TPG[%hu] - Generate Initiator Portal Group ACLs: %s\n",
728 tpg->tpgt, (a->generate_node_acls) ? "Enabled" : "Disabled");
729
730 if (flag == 1 && a->cache_dynamic_acls == 0) {
731 pr_debug("Explicitly setting cache_dynamic_acls=1 when "
732 "generate_node_acls=1\n");
733 a->cache_dynamic_acls = 1;
734 }
735
736 return 0;
737}
738
739int iscsit_ta_default_cmdsn_depth(
740 struct iscsi_portal_group *tpg,
741 u32 tcq_depth)
742{
743 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
744
745 if (tcq_depth > TA_DEFAULT_CMDSN_DEPTH_MAX) {
746 pr_err("Requested Default Queue Depth: %u larger"
747 " than maximum %u\n", tcq_depth,
748 TA_DEFAULT_CMDSN_DEPTH_MAX);
749 return -EINVAL;
750 } else if (tcq_depth < TA_DEFAULT_CMDSN_DEPTH_MIN) {
751 pr_err("Requested Default Queue Depth: %u smaller"
752 " than minimum %u\n", tcq_depth,
753 TA_DEFAULT_CMDSN_DEPTH_MIN);
754 return -EINVAL;
755 }
756
757 a->default_cmdsn_depth = tcq_depth;
758 pr_debug("iSCSI_TPG[%hu] - Set Default CmdSN TCQ Depth to %u\n",
759 tpg->tpgt, a->default_cmdsn_depth);
760
761 return 0;
762}
763
764int iscsit_ta_cache_dynamic_acls(
765 struct iscsi_portal_group *tpg,
766 u32 flag)
767{
768 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
769
770 if ((flag != 0) && (flag != 1)) {
771 pr_err("Illegal value %d\n", flag);
772 return -EINVAL;
773 }
774
775 if (a->generate_node_acls == 1 && flag == 0) {
776 pr_debug("Skipping cache_dynamic_acls=0 when"
777 " generate_node_acls=1\n");
778 return 0;
779 }
780
781 a->cache_dynamic_acls = flag;
782 pr_debug("iSCSI_TPG[%hu] - Cache Dynamic Initiator Portal Group"
783 " ACLs %s\n", tpg->tpgt, (a->cache_dynamic_acls) ?
784 "Enabled" : "Disabled");
785
786 return 0;
787}
788
789int iscsit_ta_demo_mode_write_protect(
790 struct iscsi_portal_group *tpg,
791 u32 flag)
792{
793 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
794
795 if ((flag != 0) && (flag != 1)) {
796 pr_err("Illegal value %d\n", flag);
797 return -EINVAL;
798 }
799
800 a->demo_mode_write_protect = flag;
801 pr_debug("iSCSI_TPG[%hu] - Demo Mode Write Protect bit: %s\n",
802 tpg->tpgt, (a->demo_mode_write_protect) ? "ON" : "OFF");
803
804 return 0;
805}
806
807int iscsit_ta_prod_mode_write_protect(
808 struct iscsi_portal_group *tpg,
809 u32 flag)
810{
811 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
812
813 if ((flag != 0) && (flag != 1)) {
814 pr_err("Illegal value %d\n", flag);
815 return -EINVAL;
816 }
817
818 a->prod_mode_write_protect = flag;
819 pr_debug("iSCSI_TPG[%hu] - Production Mode Write Protect bit:"
820 " %s\n", tpg->tpgt, (a->prod_mode_write_protect) ?
821 "ON" : "OFF");
822
823 return 0;
824}
825
826int iscsit_ta_demo_mode_discovery(
827 struct iscsi_portal_group *tpg,
828 u32 flag)
829{
830 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
831
832 if ((flag != 0) && (flag != 1)) {
833 pr_err("Illegal value %d\n", flag);
834 return -EINVAL;
835 }
836
837 a->demo_mode_discovery = flag;
838 pr_debug("iSCSI_TPG[%hu] - Demo Mode Discovery bit:"
839 " %s\n", tpg->tpgt, (a->demo_mode_discovery) ?
840 "ON" : "OFF");
841
842 return 0;
843}
844
845int iscsit_ta_default_erl(
846 struct iscsi_portal_group *tpg,
847 u32 default_erl)
848{
849 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
850
851 if ((default_erl != 0) && (default_erl != 1) && (default_erl != 2)) {
852 pr_err("Illegal value for default_erl: %u\n", default_erl);
853 return -EINVAL;
854 }
855
856 a->default_erl = default_erl;
857 pr_debug("iSCSI_TPG[%hu] - DefaultERL: %u\n", tpg->tpgt, a->default_erl);
858
859 return 0;
860}
861
