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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}
227
228int iscsit_tpg_add_portal_group(struct iscsi_tiqn *tiqn, struct iscsi_portal_group *tpg)
229{
230 if (tpg->tpg_state != TPG_STATE_FREE) {
231 pr_err("Unable to add iSCSI Target Portal Group: %d"
232 " while not in TPG_STATE_FREE state.\n", tpg->tpgt);
233 return -EEXIST;
234 }
235 iscsit_set_default_tpg_attribs(tpg);
236
237 if (iscsi_create_default_params(&tpg->param_list) < 0)
238 goto err_out;
239
240 ISCSI_TPG_ATTRIB(tpg)->tpg = tpg;
241
242 spin_lock(&tpg->tpg_state_lock);
243 tpg->tpg_state = TPG_STATE_INACTIVE;
244 spin_unlock(&tpg->tpg_state_lock);
245
246 spin_lock(&tiqn->tiqn_tpg_lock);
247 list_add_tail(&tpg->tpg_list, &tiqn->tiqn_tpg_list);
248 tiqn->tiqn_ntpgs++;
249 pr_debug("CORE[%s]_TPG[%hu] - Added iSCSI Target Portal Group\n",
250 tiqn->tiqn, tpg->tpgt);
251 spin_unlock(&tiqn->tiqn_tpg_lock);
252
253 return 0;
254err_out:
255 if (tpg->param_list) {
256 iscsi_release_param_list(tpg->param_list);
257 tpg->param_list = NULL;
258 }
259 kfree(tpg);
260 return -ENOMEM;
261}
262
263int iscsit_tpg_del_portal_group(
264 struct iscsi_tiqn *tiqn,
265 struct iscsi_portal_group *tpg,
266 int force)
267{
268 u8 old_state = tpg->tpg_state;
269
270 spin_lock(&tpg->tpg_state_lock);
271 tpg->tpg_state = TPG_STATE_INACTIVE;
272 spin_unlock(&tpg->tpg_state_lock);
273
274 iscsit_clear_tpg_np_login_threads(tpg, true);
275
276 if (iscsit_release_sessions_for_tpg(tpg, force) < 0) {
277 pr_err("Unable to delete iSCSI Target Portal Group:"
278 " %hu while active sessions exist, and force=0\n",
279 tpg->tpgt);
280 tpg->tpg_state = old_state;
281 return -EPERM;
282 }
283
284 core_tpg_clear_object_luns(&tpg->tpg_se_tpg);
285
286 if (tpg->param_list) {
287 iscsi_release_param_list(tpg->param_list);
288 tpg->param_list = NULL;
289 }
290
291 core_tpg_deregister(&tpg->tpg_se_tpg);
292
293 spin_lock(&tpg->tpg_state_lock);
294 tpg->tpg_state = TPG_STATE_FREE;
295 spin_unlock(&tpg->tpg_state_lock);
296
297 spin_lock(&tiqn->tiqn_tpg_lock);
298 tiqn->tiqn_ntpgs--;
299 list_del(&tpg->tpg_list);
300 spin_unlock(&tiqn->tiqn_tpg_lock);
301
302 pr_debug("CORE[%s]_TPG[%hu] - Deleted iSCSI Target Portal Group\n",
303 tiqn->tiqn, tpg->tpgt);
304
305 kfree(tpg);
306 return 0;
307}
308
309int iscsit_tpg_enable_portal_group(struct iscsi_portal_group *tpg)
310{
311 struct iscsi_param *param;
312 struct iscsi_tiqn *tiqn = tpg->tpg_tiqn;
313 int ret;
314
315 spin_lock(&tpg->tpg_state_lock);
316 if (tpg->tpg_state == TPG_STATE_ACTIVE) {
317 pr_err("iSCSI target portal group: %hu is already"
318 " active, ignoring request.\n", tpg->tpgt);
319 spin_unlock(&tpg->tpg_state_lock);
320 return -EINVAL;
321 }
322
323
324
325
326
327 param = iscsi_find_param_from_key(AUTHMETHOD, tpg->param_list);
328 if (!param) {
329 spin_unlock(&tpg->tpg_state_lock);
330 return -EINVAL;
331 }
332
333 if (ISCSI_TPG_ATTRIB(tpg)->authentication) {
334 if (!strcmp(param->value, NONE)) {
335 ret = iscsi_update_param_value(param, CHAP);
336 if (ret)
337 goto err;
338 }
339
340 ret = iscsit_ta_authentication(tpg, 1);
341 if (ret < 0)
342 goto err;
343 }
344
345 tpg->tpg_state = TPG_STATE_ACTIVE;
346 spin_unlock(&tpg->tpg_state_lock);
347
348 spin_lock(&tiqn->tiqn_tpg_lock);
349 tiqn->tiqn_active_tpgs++;
350 pr_debug("iSCSI_TPG[%hu] - Enabled iSCSI Target Portal Group\n",
351 tpg->tpgt);
352 spin_unlock(&tiqn->tiqn_tpg_lock);
353
354 return 0;
355
356err:
357 spin_unlock(&tpg->tpg_state_lock);
358 return ret;
359}
360
361int iscsit_tpg_disable_portal_group(struct iscsi_portal_group *tpg, int force)
362{
363 struct iscsi_tiqn *tiqn;
364 u8 old_state = tpg->tpg_state;
365
366 spin_lock(&tpg->tpg_state_lock);
367 if (tpg->tpg_state == TPG_STATE_INACTIVE) {
368 pr_err("iSCSI Target Portal Group: %hu is already"
369 " inactive, ignoring request.\n", tpg->tpgt);
370 spin_unlock(&tpg->tpg_state_lock);
371 return -EINVAL;
372 }
373 tpg->tpg_state = TPG_STATE_INACTIVE;
374 spin_unlock(&tpg->tpg_state_lock);
375
376 iscsit_clear_tpg_np_login_threads(tpg, false);
377
378 if (iscsit_release_sessions_for_tpg(tpg, force) < 0) {
379 spin_lock(&tpg->tpg_state_lock);
380 tpg->tpg_state = old_state;
381 spin_unlock(&tpg->tpg_state_lock);
382 pr_err("Unable to disable iSCSI Target Portal Group:"
383 " %hu while active sessions exist, and force=0\n",
384 tpg->tpgt);
385 return -EPERM;
386 }
387
388 tiqn = tpg->tpg_tiqn;
389 if (!tiqn || (tpg == iscsit_global->discovery_tpg))
390 return 0;
391
392 spin_lock(&tiqn->tiqn_tpg_lock);
393 tiqn->tiqn_active_tpgs--;
394 pr_debug("iSCSI_TPG[%hu] - Disabled iSCSI Target Portal Group\n",
395 tpg->tpgt);
396 spin_unlock(&tiqn->tiqn_tpg_lock);
397
398 return 0;
399}
400
401struct iscsi_node_attrib *iscsit_tpg_get_node_attrib(
402 struct iscsi_session *sess)
403{
404 struct se_session *se_sess = sess->se_sess;
405 struct se_node_acl *se_nacl = se_sess->se_node_acl;
406 struct iscsi_node_acl *acl = container_of(se_nacl, struct iscsi_node_acl,
407 se_node_acl);
408
409 return &acl->node_attrib;
410}
411
412struct iscsi_tpg_np *iscsit_tpg_locate_child_np(
413 struct iscsi_tpg_np *tpg_np,
414 int network_transport)
415{
416 struct iscsi_tpg_np *tpg_np_child, *tpg_np_child_tmp;
417
418 spin_lock(&tpg_np->tpg_np_parent_lock);
419 list_for_each_entry_safe(tpg_np_child, tpg_np_child_tmp,
420 &tpg_np->tpg_np_parent_list, tpg_np_child_list) {
421 if (tpg_np_child->tpg_np->np_network_transport ==
422 network_transport) {
423 spin_unlock(&tpg_np->tpg_np_parent_lock);
424 return tpg_np_child;
425 }
426 }
427 spin_unlock(&tpg_np->tpg_np_parent_lock);
428
429 return NULL;
430}
431
432static bool iscsit_tpg_check_network_portal(
433 struct iscsi_tiqn *tiqn,
434 struct __kernel_sockaddr_storage *sockaddr,
435 int network_transport)
436{
437 struct iscsi_portal_group *tpg;
438 struct iscsi_tpg_np *tpg_np;
439 struct iscsi_np *np;
440 bool match = false;
441
442 spin_lock(&tiqn->tiqn_tpg_lock);
443 list_for_each_entry(tpg, &tiqn->tiqn_tpg_list, tpg_list) {
444
445 spin_lock(&tpg->tpg_np_lock);
446 list_for_each_entry(tpg_np, &tpg->tpg_gnp_list, tpg_np_list) {
447 np = tpg_np->tpg_np;
448
449 match = iscsit_check_np_match(sockaddr, np,
450 network_transport);
451 if (match == true)
452 break;
453 }
454 spin_unlock(&tpg->tpg_np_lock);
455 }
456 spin_unlock(&tiqn->tiqn_tpg_lock);
457
458 return match;
459}
460
461struct iscsi_tpg_np *iscsit_tpg_add_network_portal(
462 struct iscsi_portal_group *tpg,
463 struct __kernel_sockaddr_storage *sockaddr,
464 char *ip_str,
465 struct iscsi_tpg_np *tpg_np_parent,
466 int network_transport)
467{
468 struct iscsi_np *np;
469 struct iscsi_tpg_np *tpg_np;
470
471 if (!tpg_np_parent) {
472 if (iscsit_tpg_check_network_portal(tpg->tpg_tiqn, sockaddr,
473 network_transport) == true) {
474 pr_err("Network Portal: %s already exists on a"
475 " different TPG on %s\n", ip_str,
476 tpg->tpg_tiqn->tiqn);
477 return ERR_PTR(-EEXIST);
478 }
479 }
480
481 tpg_np = kzalloc(sizeof(struct iscsi_tpg_np), GFP_KERNEL);
482 if (!tpg_np) {
483 pr_err("Unable to allocate memory for"
484 " struct iscsi_tpg_np.\n");
485 return ERR_PTR(-ENOMEM);
486 }
487
488 np = iscsit_add_np(sockaddr, ip_str, network_transport);
489 if (IS_ERR(np)) {
490 kfree(tpg_np);
491 return ERR_CAST(np);
492 }
493
494 INIT_LIST_HEAD(&tpg_np->tpg_np_list);
495 INIT_LIST_HEAD(&tpg_np->tpg_np_child_list);
496 INIT_LIST_HEAD(&tpg_np->tpg_np_parent_list);
497 spin_lock_init(&tpg_np->tpg_np_parent_lock);
498 init_completion(&tpg_np->tpg_np_comp);
499 kref_init(&tpg_np->tpg_np_kref);
500 tpg_np->tpg_np = np;
501 tpg_np->tpg = tpg;
502
503 spin_lock(&tpg->tpg_np_lock);
504 list_add_tail(&tpg_np->tpg_np_list, &tpg->tpg_gnp_list);
505 tpg->num_tpg_nps++;
506 if (tpg->tpg_tiqn)
507 tpg->tpg_tiqn->tiqn_num_tpg_nps++;
508 spin_unlock(&tpg->tpg_np_lock);
509
510 if (tpg_np_parent) {
511 tpg_np->tpg_np_parent = tpg_np_parent;
512 spin_lock(&tpg_np_parent->tpg_np_parent_lock);
513 list_add_tail(&tpg_np->tpg_np_child_list,
514 &tpg_np_parent->tpg_np_parent_list);
515 spin_unlock(&tpg_np_parent->tpg_np_parent_lock);
516 }
517
518 pr_debug("CORE[%s] - Added Network Portal: %s:%hu,%hu on %s\n",
519 tpg->tpg_tiqn->tiqn, np->np_ip, np->np_port, tpg->tpgt,
520 np->np_transport->name);
521
522 return tpg_np;
523}
524
525static int iscsit_tpg_release_np(
526 struct iscsi_tpg_np *tpg_np,
527 struct iscsi_portal_group *tpg,
528 struct iscsi_np *np)
529{
530 iscsit_clear_tpg_np_login_thread(tpg_np, tpg, true);
531
532 pr_debug("CORE[%s] - Removed Network Portal: %s:%hu,%hu on %s\n",
533 tpg->tpg_tiqn->tiqn, np->np_ip, np->np_port, tpg->tpgt,
534 np->np_transport->name);
535
536 tpg_np->tpg_np = NULL;
537 tpg_np->tpg = NULL;
538 kfree(tpg_np);
539
540
541
542 return iscsit_del_np(np);
543}
544
545int iscsit_tpg_del_network_portal(
546 struct iscsi_portal_group *tpg,
547 struct iscsi_tpg_np *tpg_np)
548{
549 struct iscsi_np *np;
550 struct iscsi_tpg_np *tpg_np_child, *tpg_np_child_tmp;
551 int ret = 0;
552
553 np = tpg_np->tpg_np;
554 if (!np) {
555 pr_err("Unable to locate struct iscsi_np from"
556 " struct iscsi_tpg_np\n");
557 return -EINVAL;
558 }
559
560 if (!tpg_np->tpg_np_parent) {
561
562
563
564
565
566 list_for_each_entry_safe(tpg_np_child, tpg_np_child_tmp,
567 &tpg_np->tpg_np_parent_list,
568 tpg_np_child_list) {
569 ret = iscsit_tpg_del_network_portal(tpg, tpg_np_child);
570 if (ret < 0)
571 pr_err("iscsit_tpg_del_network_portal()"
572 " failed: %d\n", ret);
573 }
574 } else {
575
576
577
578
579 spin_lock(&tpg_np->tpg_np_parent->tpg_np_parent_lock);
580 list_del(&tpg_np->tpg_np_child_list);
581 spin_unlock(&tpg_np->tpg_np_parent->tpg_np_parent_lock);
582 }
583
584 spin_lock(&tpg->tpg_np_lock);
585 list_del(&tpg_np->tpg_np_list);
586 tpg->num_tpg_nps--;
587 if (tpg->tpg_tiqn)
588 tpg->tpg_tiqn->tiqn_num_tpg_nps--;
589 spin_unlock(&tpg->tpg_np_lock);
590
591 return iscsit_tpg_release_np(tpg_np, tpg, np);
592}
593
594int iscsit_tpg_set_initiator_node_queue_depth(
595 struct iscsi_portal_group *tpg,
596 unsigned char *initiatorname,
597 u32 queue_depth,
598 int force)
599{
600 return core_tpg_set_initiator_node_queue_depth(&tpg->tpg_se_tpg,
601 initiatorname, queue_depth, force);
602}
603
604int iscsit_ta_authentication(struct iscsi_portal_group *tpg, u32 authentication)
605{
606 unsigned char buf1[256], buf2[256], *none = NULL;
607 int len;
608 struct iscsi_param *param;
609 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
610
611 if ((authentication != 1) && (authentication != 0)) {
612 pr_err("Illegal value for authentication parameter:"
613 " %u, ignoring request.\n", authentication);
614 return -EINVAL;
615 }
616
617 memset(buf1, 0, sizeof(buf1));
618 memset(buf2, 0, sizeof(buf2));
619
620 param = iscsi_find_param_from_key(AUTHMETHOD, tpg->param_list);
621 if (!param)
622 return -EINVAL;
623
624 if (authentication) {
625 snprintf(buf1, sizeof(buf1), "%s", param->value);
626 none = strstr(buf1, NONE);
627 if (!none)
628 goto out;
629 if (!strncmp(none + 4, ",", 1)) {
630 if (!strcmp(buf1, none))
631 sprintf(buf2, "%s", none+5);
632 else {
633 none--;
634 *none = '\0';
635 len = sprintf(buf2, "%s", buf1);
636 none += 5;
637 sprintf(buf2 + len, "%s", none);
638 }
639 } else {
640 none--;
641 *none = '\0';
642 sprintf(buf2, "%s", buf1);
643 }
644 if (iscsi_update_param_value(param, buf2) < 0)
645 return -EINVAL;
646 } else {
647 snprintf(buf1, sizeof(buf1), "%s", param->value);
648 none = strstr(buf1, NONE);
649 if (none)
650 goto out;
651 strncat(buf1, ",", strlen(","));
652 strncat(buf1, NONE, strlen(NONE));
653 if (iscsi_update_param_value(param, buf1) < 0)
654 return -EINVAL;
655 }
656
657out:
658 a->authentication = authentication;
659 pr_debug("%s iSCSI Authentication Methods for TPG: %hu.\n",
660 a->authentication ? "Enforcing" : "Disabling", tpg->tpgt);
661
662 return 0;
663}
664
665int iscsit_ta_login_timeout(
666 struct iscsi_portal_group *tpg,
667 u32 login_timeout)
668{
669 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
670
671 if (login_timeout > TA_LOGIN_TIMEOUT_MAX) {
672 pr_err("Requested Login Timeout %u larger than maximum"
673 " %u\n", login_timeout, TA_LOGIN_TIMEOUT_MAX);
674 return -EINVAL;
675 } else if (login_timeout < TA_LOGIN_TIMEOUT_MIN) {
676 pr_err("Requested Logout Timeout %u smaller than"
677 " minimum %u\n", login_timeout, TA_LOGIN_TIMEOUT_MIN);
678 return -EINVAL;
679 }
680
681 a->login_timeout = login_timeout;
682 pr_debug("Set Logout Timeout to %u for Target Portal Group"
683 " %hu\n", a->login_timeout, tpg->tpgt);
684
685 return 0;
686}
687
688int iscsit_ta_netif_timeout(
689 struct iscsi_portal_group *tpg,
690 u32 netif_timeout)
691{
692 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
693
694 if (netif_timeout > TA_NETIF_TIMEOUT_MAX) {
695 pr_err("Requested Network Interface Timeout %u larger"
696 " than maximum %u\n", netif_timeout,
697 TA_NETIF_TIMEOUT_MAX);
698 return -EINVAL;
699 } else if (netif_timeout < TA_NETIF_TIMEOUT_MIN) {
700 pr_err("Requested Network Interface Timeout %u smaller"
701 " than minimum %u\n", netif_timeout,
702 TA_NETIF_TIMEOUT_MIN);
703 return -EINVAL;
704 }
705
706 a->netif_timeout = netif_timeout;
707 pr_debug("Set Network Interface Timeout to %u for"
708 " Target Portal Group %hu\n", a->netif_timeout, tpg->tpgt);
709
710 return 0;
711}
712
713int iscsit_ta_generate_node_acls(
714 struct iscsi_portal_group *tpg,
715 u32 flag)
716{
717 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
718
719 if ((flag != 0) && (flag != 1)) {
720 pr_err("Illegal value %d\n", flag);
721 return -EINVAL;
722 }
723
724 a->generate_node_acls = flag;
725 pr_debug("iSCSI_TPG[%hu] - Generate Initiator Portal Group ACLs: %s\n",
726 tpg->tpgt, (a->generate_node_acls) ? "Enabled" : "Disabled");
727
728 if (flag == 1 && a->cache_dynamic_acls == 0) {
729 pr_debug("Explicitly setting cache_dynamic_acls=1 when "
730 "generate_node_acls=1\n");
731 a->cache_dynamic_acls = 1;
732 }
733
734 return 0;
735}
736
737int iscsit_ta_default_cmdsn_depth(
738 struct iscsi_portal_group *tpg,
739 u32 tcq_depth)
740{
741 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
742
743 if (tcq_depth > TA_DEFAULT_CMDSN_DEPTH_MAX) {
744 pr_err("Requested Default Queue Depth: %u larger"
745 " than maximum %u\n", tcq_depth,
746 TA_DEFAULT_CMDSN_DEPTH_MAX);
747 return -EINVAL;
748 } else if (tcq_depth < TA_DEFAULT_CMDSN_DEPTH_MIN) {
749 pr_err("Requested Default Queue Depth: %u smaller"
750 " than minimum %u\n", tcq_depth,
751 TA_DEFAULT_CMDSN_DEPTH_MIN);
752 return -EINVAL;
753 }
754
755 a->default_cmdsn_depth = tcq_depth;
756 pr_debug("iSCSI_TPG[%hu] - Set Default CmdSN TCQ Depth to %u\n",
757 tpg->tpgt, a->default_cmdsn_depth);
758
759 return 0;
760}
761
762int iscsit_ta_cache_dynamic_acls(
763 struct iscsi_portal_group *tpg,
764 u32 flag)
765{
766 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
767
768 if ((flag != 0) && (flag != 1)) {
769 pr_err("Illegal value %d\n", flag);
770 return -EINVAL;
771 }
772
773 if (a->generate_node_acls == 1 && flag == 0) {
774 pr_debug("Skipping cache_dynamic_acls=0 when"
775 " generate_node_acls=1\n");
776 return 0;
777 }
778
779 a->cache_dynamic_acls = flag;
780 pr_debug("iSCSI_TPG[%hu] - Cache Dynamic Initiator Portal Group"
781 " ACLs %s\n", tpg->tpgt, (a->cache_dynamic_acls) ?
782 "Enabled" : "Disabled");
783
784 return 0;
785}
786
787int iscsit_ta_demo_mode_write_protect(
788 struct iscsi_portal_group *tpg,
789 u32 flag)
790{
791 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
792
793 if ((flag != 0) && (flag != 1)) {
794 pr_err("Illegal value %d\n", flag);
795 return -EINVAL;
796 }
797
798 a->demo_mode_write_protect = flag;
799 pr_debug("iSCSI_TPG[%hu] - Demo Mode Write Protect bit: %s\n",
800 tpg->tpgt, (a->demo_mode_write_protect) ? "ON" : "OFF");
801
802 return 0;
803}
804
805int iscsit_ta_prod_mode_write_protect(
806 struct iscsi_portal_group *tpg,
807 u32 flag)
808{
809 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
810
811 if ((flag != 0) && (flag != 1)) {
812 pr_err("Illegal value %d\n", flag);
813 return -EINVAL;
814 }
815
816 a->prod_mode_write_protect = flag;
817 pr_debug("iSCSI_TPG[%hu] - Production Mode Write Protect bit:"
818 " %s\n", tpg->tpgt, (a->prod_mode_write_protect) ?
819 "ON" : "OFF");
820
821 return 0;
822}
823
