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19#include <linux/slab.h>
20#include <target/target_core_base.h>
21#include <target/target_core_fabric.h>
22#include <target/iscsi/iscsi_target_core.h>
23#include "iscsi_target_erl0.h"
24#include "iscsi_target_login.h"
25#include "iscsi_target_nodeattrib.h"
26#include "iscsi_target_tpg.h"
27#include "iscsi_target_util.h"
28#include "iscsi_target.h"
29#include "iscsi_target_parameters.h"
30
31#include <target/iscsi/iscsi_transport.h>
32
33struct iscsi_portal_group *iscsit_alloc_portal_group(struct iscsi_tiqn *tiqn, u16 tpgt)
34{
35 struct iscsi_portal_group *tpg;
36
37 tpg = kzalloc(sizeof(struct iscsi_portal_group), GFP_KERNEL);
38 if (!tpg) {
39 pr_err("Unable to allocate struct iscsi_portal_group\n");
40 return NULL;
41 }
42
43 tpg->tpgt = tpgt;
44 tpg->tpg_state = TPG_STATE_FREE;
45 tpg->tpg_tiqn = tiqn;
46 INIT_LIST_HEAD(&tpg->tpg_gnp_list);
47 INIT_LIST_HEAD(&tpg->tpg_list);
48 mutex_init(&tpg->tpg_access_lock);
49 sema_init(&tpg->np_login_sem, 1);
50 spin_lock_init(&tpg->tpg_state_lock);
51 spin_lock_init(&tpg->tpg_np_lock);
52
53 return tpg;
54}
55
56static void iscsit_set_default_tpg_attribs(struct iscsi_portal_group *);
57
58int iscsit_load_discovery_tpg(void)
59{
60 struct iscsi_param *param;
61 struct iscsi_portal_group *tpg;
62 int ret;
63
64 tpg = iscsit_alloc_portal_group(NULL, 1);
65 if (!tpg) {
66 pr_err("Unable to allocate struct iscsi_portal_group\n");
67 return -1;
68 }
69
70
71
72
73 tpg->tpg_se_tpg.se_tpg_tfo = &iscsi_ops;
74 ret = core_tpg_register(NULL, &tpg->tpg_se_tpg, -1);
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_ACTIVE) {
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 return mutex_lock_interruptible(&tpg->tpg_access_lock);
167}
168
169void iscsit_put_tpg(struct iscsi_portal_group *tpg)
170{
171 mutex_unlock(&tpg->tpg_access_lock);
172}
173
174static void iscsit_clear_tpg_np_login_thread(
175 struct iscsi_tpg_np *tpg_np,
176 struct iscsi_portal_group *tpg,
177 bool shutdown)
178{
179 if (!tpg_np->tpg_np) {
180 pr_err("struct iscsi_tpg_np->tpg_np is NULL!\n");
181 return;
182 }
183
184 if (shutdown)
185 tpg_np->tpg_np->enabled = false;
186 iscsit_reset_np_thread(tpg_np->tpg_np, tpg_np, tpg, shutdown);
187}
188
189static void iscsit_clear_tpg_np_login_threads(
190 struct iscsi_portal_group *tpg,
191 bool shutdown)
192{
193 struct iscsi_tpg_np *tpg_np;
194
195 spin_lock(&tpg->tpg_np_lock);
196 list_for_each_entry(tpg_np, &tpg->tpg_gnp_list, tpg_np_list) {
197 if (!tpg_np->tpg_np) {
198 pr_err("struct iscsi_tpg_np->tpg_np is NULL!\n");
199 continue;
200 }
201 spin_unlock(&tpg->tpg_np_lock);
202 iscsit_clear_tpg_np_login_thread(tpg_np, tpg, shutdown);
203 spin_lock(&tpg->tpg_np_lock);
204 }
205 spin_unlock(&tpg->tpg_np_lock);
206}
207
208void iscsit_tpg_dump_params(struct iscsi_portal_group *tpg)
209{
210 iscsi_print_params(tpg->param_list);
211}
212
213static void iscsit_set_default_tpg_attribs(struct iscsi_portal_group *tpg)
214{
215 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
216
217 a->authentication = TA_AUTHENTICATION;
218 a->login_timeout = TA_LOGIN_TIMEOUT;
219 a->netif_timeout = TA_NETIF_TIMEOUT;
220 a->default_cmdsn_depth = TA_DEFAULT_CMDSN_DEPTH;
221 a->generate_node_acls = TA_GENERATE_NODE_ACLS;
222 a->cache_dynamic_acls = TA_CACHE_DYNAMIC_ACLS;
223 a->demo_mode_write_protect = TA_DEMO_MODE_WRITE_PROTECT;
224 a->prod_mode_write_protect = TA_PROD_MODE_WRITE_PROTECT;
225 a->demo_mode_discovery = TA_DEMO_MODE_DISCOVERY;
226 a->default_erl = TA_DEFAULT_ERL;
227 a->t10_pi = TA_DEFAULT_T10_PI;
228 a->fabric_prot_type = TA_DEFAULT_FABRIC_PROT_TYPE;
229 a->tpg_enabled_sendtargets = TA_DEFAULT_TPG_ENABLED_SENDTARGETS;
230 a->login_keys_workaround = TA_DEFAULT_LOGIN_KEYS_WORKAROUND;
231}
232
233int iscsit_tpg_add_portal_group(struct iscsi_tiqn *tiqn, struct iscsi_portal_group *tpg)
234{
235 if (tpg->tpg_state != TPG_STATE_FREE) {
236 pr_err("Unable to add iSCSI Target Portal Group: %d"
237 " while not in TPG_STATE_FREE state.\n", tpg->tpgt);
238 return -EEXIST;
239 }
240 iscsit_set_default_tpg_attribs(tpg);
241
242 if (iscsi_create_default_params(&tpg->param_list) < 0)
243 goto err_out;
244
245 tpg->tpg_attrib.tpg = tpg;
246
247 spin_lock(&tpg->tpg_state_lock);
248 tpg->tpg_state = TPG_STATE_INACTIVE;
249 spin_unlock(&tpg->tpg_state_lock);
250
251 spin_lock(&tiqn->tiqn_tpg_lock);
252 list_add_tail(&tpg->tpg_list, &tiqn->tiqn_tpg_list);
253 tiqn->tiqn_ntpgs++;
254 pr_debug("CORE[%s]_TPG[%hu] - Added iSCSI Target Portal Group\n",
255 tiqn->tiqn, tpg->tpgt);
256 spin_unlock(&tiqn->tiqn_tpg_lock);
257
258 return 0;
259err_out:
260 if (tpg->param_list) {
261 iscsi_release_param_list(tpg->param_list);
262 tpg->param_list = NULL;
263 }
264 return -ENOMEM;
265}
266
267int iscsit_tpg_del_portal_group(
268 struct iscsi_tiqn *tiqn,
269 struct iscsi_portal_group *tpg,
270 int force)
271{
272 u8 old_state = tpg->tpg_state;
273
274 spin_lock(&tpg->tpg_state_lock);
275 tpg->tpg_state = TPG_STATE_INACTIVE;
276 spin_unlock(&tpg->tpg_state_lock);
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 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 if (tpg->tpg_state == TPG_STATE_ACTIVE) {
316 pr_err("iSCSI target portal group: %hu is already"
317 " active, ignoring request.\n", tpg->tpgt);
318 return -EINVAL;
319 }
320
321
322
323
324
325 param = iscsi_find_param_from_key(AUTHMETHOD, tpg->param_list);
326 if (!param)
327 return -EINVAL;
328
329 if (tpg->tpg_attrib.authentication) {
330 if (!strcmp(param->value, NONE)) {
331 ret = iscsi_update_param_value(param, CHAP);
332 if (ret)
333 goto err;
334 }
335
336 ret = iscsit_ta_authentication(tpg, 1);
337 if (ret < 0)
338 goto err;
339 }
340
341 spin_lock(&tpg->tpg_state_lock);
342 tpg->tpg_state = TPG_STATE_ACTIVE;
343 spin_unlock(&tpg->tpg_state_lock);
344
345 spin_lock(&tiqn->tiqn_tpg_lock);
346 tiqn->tiqn_active_tpgs++;
347 pr_debug("iSCSI_TPG[%hu] - Enabled iSCSI Target Portal Group\n",
348 tpg->tpgt);
349 spin_unlock(&tiqn->tiqn_tpg_lock);
350
351 return 0;
352
353err:
354 return ret;
355}
356
357int iscsit_tpg_disable_portal_group(struct iscsi_portal_group *tpg, int force)
358{
359 struct iscsi_tiqn *tiqn;
360 u8 old_state = tpg->tpg_state;
361
362 spin_lock(&tpg->tpg_state_lock);
363 if (tpg->tpg_state == TPG_STATE_INACTIVE) {
364 pr_err("iSCSI Target Portal Group: %hu is already"
365 " inactive, ignoring request.\n", tpg->tpgt);
366 spin_unlock(&tpg->tpg_state_lock);
367 return -EINVAL;
368 }
369 tpg->tpg_state = TPG_STATE_INACTIVE;
370 spin_unlock(&tpg->tpg_state_lock);
371
372 iscsit_clear_tpg_np_login_threads(tpg, false);
373
374 if (iscsit_release_sessions_for_tpg(tpg, force) < 0) {
375 spin_lock(&tpg->tpg_state_lock);
376 tpg->tpg_state = old_state;
377 spin_unlock(&tpg->tpg_state_lock);
378 pr_err("Unable to disable iSCSI Target Portal Group:"
379 " %hu while active sessions exist, and force=0\n",
380 tpg->tpgt);
381 return -EPERM;
382 }
383
384 tiqn = tpg->tpg_tiqn;
385 if (!tiqn || (tpg == iscsit_global->discovery_tpg))
386 return 0;
387
388 spin_lock(&tiqn->tiqn_tpg_lock);
389 tiqn->tiqn_active_tpgs--;
390 pr_debug("iSCSI_TPG[%hu] - Disabled iSCSI Target Portal Group\n",
391 tpg->tpgt);
392 spin_unlock(&tiqn->tiqn_tpg_lock);
393
394 return 0;
395}
396
397struct iscsi_node_attrib *iscsit_tpg_get_node_attrib(
398 struct iscsi_session *sess)
399{
400 struct se_session *se_sess = sess->se_sess;
401 struct se_node_acl *se_nacl = se_sess->se_node_acl;
402 struct iscsi_node_acl *acl = container_of(se_nacl, struct iscsi_node_acl,
403 se_node_acl);
404
405 return &acl->node_attrib;
406}
407
408struct iscsi_tpg_np *iscsit_tpg_locate_child_np(
409 struct iscsi_tpg_np *tpg_np,
410 int network_transport)
411{
412 struct iscsi_tpg_np *tpg_np_child, *tpg_np_child_tmp;
413
414 spin_lock(&tpg_np->tpg_np_parent_lock);
415 list_for_each_entry_safe(tpg_np_child, tpg_np_child_tmp,
416 &tpg_np->tpg_np_parent_list, tpg_np_child_list) {
417 if (tpg_np_child->tpg_np->np_network_transport ==
418 network_transport) {
419 spin_unlock(&tpg_np->tpg_np_parent_lock);
420 return tpg_np_child;
421 }
422 }
423 spin_unlock(&tpg_np->tpg_np_parent_lock);
424
425 return NULL;
426}
427
428static bool iscsit_tpg_check_network_portal(
429 struct iscsi_tiqn *tiqn,
430 struct sockaddr_storage *sockaddr,
431 int network_transport)
432{
433 struct iscsi_portal_group *tpg;
434 struct iscsi_tpg_np *tpg_np;
435 struct iscsi_np *np;
436 bool match = false;
437
438 spin_lock(&tiqn->tiqn_tpg_lock);
439 list_for_each_entry(tpg, &tiqn->tiqn_tpg_list, tpg_list) {
440
441 spin_lock(&tpg->tpg_np_lock);
442 list_for_each_entry(tpg_np, &tpg->tpg_gnp_list, tpg_np_list) {
443 np = tpg_np->tpg_np;
444
445 match = iscsit_check_np_match(sockaddr, np,
446 network_transport);
447 if (match)
448 break;
449 }
450 spin_unlock(&tpg->tpg_np_lock);
451 }
452 spin_unlock(&tiqn->tiqn_tpg_lock);
453
454 return match;
455}
456
457struct iscsi_tpg_np *iscsit_tpg_add_network_portal(
458 struct iscsi_portal_group *tpg,
459 struct sockaddr_storage *sockaddr,
460 struct iscsi_tpg_np *tpg_np_parent,
461 int network_transport)
462{
463 struct iscsi_np *np;
464 struct iscsi_tpg_np *tpg_np;
465
466 if (!tpg_np_parent) {
467 if (iscsit_tpg_check_network_portal(tpg->tpg_tiqn, sockaddr,
468 network_transport)) {
469 pr_err("Network Portal: %pISc already exists on a"
470 " different TPG on %s\n", sockaddr,
471 tpg->tpg_tiqn->tiqn);
472 return ERR_PTR(-EEXIST);
473 }
474 }
475
476 tpg_np = kzalloc(sizeof(struct iscsi_tpg_np), GFP_KERNEL);
477 if (!tpg_np) {
478 pr_err("Unable to allocate memory for"
479 " struct iscsi_tpg_np.\n");
480 return ERR_PTR(-ENOMEM);
481 }
482
483 np = iscsit_add_np(sockaddr, network_transport);
484 if (IS_ERR(np)) {
485 kfree(tpg_np);
486 return ERR_CAST(np);
487 }
488
489 INIT_LIST_HEAD(&tpg_np->tpg_np_list);
490 INIT_LIST_HEAD(&tpg_np->tpg_np_child_list);
491 INIT_LIST_HEAD(&tpg_np->tpg_np_parent_list);
492 spin_lock_init(&tpg_np->tpg_np_parent_lock);
493 init_completion(&tpg_np->tpg_np_comp);
494 kref_init(&tpg_np->tpg_np_kref);
495 tpg_np->tpg_np = np;
496 tpg_np->tpg = tpg;
497
498 spin_lock(&tpg->tpg_np_lock);
499 list_add_tail(&tpg_np->tpg_np_list, &tpg->tpg_gnp_list);
500 tpg->num_tpg_nps++;
501 if (tpg->tpg_tiqn)
502 tpg->tpg_tiqn->tiqn_num_tpg_nps++;
503 spin_unlock(&tpg->tpg_np_lock);
504
505 if (tpg_np_parent) {
506 tpg_np->tpg_np_parent = tpg_np_parent;
507 spin_lock(&tpg_np_parent->tpg_np_parent_lock);
508 list_add_tail(&tpg_np->tpg_np_child_list,
509 &tpg_np_parent->tpg_np_parent_list);
510 spin_unlock(&tpg_np_parent->tpg_np_parent_lock);
511 }
512
513 pr_debug("CORE[%s] - Added Network Portal: %pISpc,%hu on %s\n",
514 tpg->tpg_tiqn->tiqn, &np->np_sockaddr, tpg->tpgt,
515 np->np_transport->name);
516
517 return tpg_np;
518}
519
520static int iscsit_tpg_release_np(
521 struct iscsi_tpg_np *tpg_np,
522 struct iscsi_portal_group *tpg,
523 struct iscsi_np *np)
524{
525 iscsit_clear_tpg_np_login_thread(tpg_np, tpg, true);
526
527 pr_debug("CORE[%s] - Removed Network Portal: %pISpc,%hu on %s\n",
528 tpg->tpg_tiqn->tiqn, &np->np_sockaddr, tpg->tpgt,
529 np->np_transport->name);
530
531 tpg_np->tpg_np = NULL;
532 tpg_np->tpg = NULL;
533 kfree(tpg_np);
534
535
536
537 return iscsit_del_np(np);
538}
539
540int iscsit_tpg_del_network_portal(
541 struct iscsi_portal_group *tpg,
542 struct iscsi_tpg_np *tpg_np)
543{
544 struct iscsi_np *np;
545 struct iscsi_tpg_np *tpg_np_child, *tpg_np_child_tmp;
546 int ret = 0;
547
548 np = tpg_np->tpg_np;
549 if (!np) {
550 pr_err("Unable to locate struct iscsi_np from"
551 " struct iscsi_tpg_np\n");
552 return -EINVAL;
553 }
554
555 if (!tpg_np->tpg_np_parent) {
556
557
558
559
560
561 list_for_each_entry_safe(tpg_np_child, tpg_np_child_tmp,
562 &tpg_np->tpg_np_parent_list,
563 tpg_np_child_list) {
564 ret = iscsit_tpg_del_network_portal(tpg, tpg_np_child);
565 if (ret < 0)
566 pr_err("iscsit_tpg_del_network_portal()"
567 " failed: %d\n", ret);
568 }
569 } else {
570
571
572
573
574 spin_lock(&tpg_np->tpg_np_parent->tpg_np_parent_lock);
575 list_del(&tpg_np->tpg_np_child_list);
576 spin_unlock(&tpg_np->tpg_np_parent->tpg_np_parent_lock);
577 }
578
579 spin_lock(&tpg->tpg_np_lock);
580 list_del(&tpg_np->tpg_np_list);
581 tpg->num_tpg_nps--;
582 if (tpg->tpg_tiqn)
583 tpg->tpg_tiqn->tiqn_num_tpg_nps--;
584 spin_unlock(&tpg->tpg_np_lock);
585
586 return iscsit_tpg_release_np(tpg_np, tpg, np);
587}
588
589int iscsit_ta_authentication(struct iscsi_portal_group *tpg, u32 authentication)
590{
591 unsigned char buf1[256], buf2[256], *none = NULL;
592 int len;
593 struct iscsi_param *param;
594 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
595
596 if ((authentication != 1) && (authentication != 0)) {
597 pr_err("Illegal value for authentication parameter:"
598 " %u, ignoring request.\n", authentication);
599 return -EINVAL;
600 }
601
602 memset(buf1, 0, sizeof(buf1));
603 memset(buf2, 0, sizeof(buf2));
604
605 param = iscsi_find_param_from_key(AUTHMETHOD, tpg->param_list);
606 if (!param)
607 return -EINVAL;
608
609 if (authentication) {
610 snprintf(buf1, sizeof(buf1), "%s", param->value);
611 none = strstr(buf1, NONE);
612 if (!none)
613 goto out;
614 if (!strncmp(none + 4, ",", 1)) {
615 if (!strcmp(buf1, none))
616 sprintf(buf2, "%s", none+5);
617 else {
618 none--;
619 *none = '\0';
620 len = sprintf(buf2, "%s", buf1);
621 none += 5;
622 sprintf(buf2 + len, "%s", none);
623 }
624 } else {
625 none--;
626 *none = '\0';
627 sprintf(buf2, "%s", buf1);
628 }
629 if (iscsi_update_param_value(param, buf2) < 0)
630 return -EINVAL;
631 } else {
632 snprintf(buf1, sizeof(buf1), "%s", param->value);
633 none = strstr(buf1, NONE);
634 if (none)
635 goto out;
636 strncat(buf1, ",", strlen(","));
637 strncat(buf1, NONE, strlen(NONE));
638 if (iscsi_update_param_value(param, buf1) < 0)
639 return -EINVAL;
640 }
641
642out:
643 a->authentication = authentication;
644 pr_debug("%s iSCSI Authentication Methods for TPG: %hu.\n",
645 a->authentication ? "Enforcing" : "Disabling", tpg->tpgt);
646
647 return 0;
648}
649
650int iscsit_ta_login_timeout(
651 struct iscsi_portal_group *tpg,
652 u32 login_timeout)
653{
654 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
655
656 if (login_timeout > TA_LOGIN_TIMEOUT_MAX) {
657 pr_err("Requested Login Timeout %u larger than maximum"
658 " %u\n", login_timeout, TA_LOGIN_TIMEOUT_MAX);
659 return -EINVAL;
660 } else if (login_timeout < TA_LOGIN_TIMEOUT_MIN) {
661 pr_err("Requested Logout Timeout %u smaller than"
662 " minimum %u\n", login_timeout, TA_LOGIN_TIMEOUT_MIN);
663 return -EINVAL;
664 }
665
666 a->login_timeout = login_timeout;
667 pr_debug("Set Logout Timeout to %u for Target Portal Group"
668 " %hu\n", a->login_timeout, tpg->tpgt);
669
670 return 0;
671}
672
673int iscsit_ta_netif_timeout(
674 struct iscsi_portal_group *tpg,
675 u32 netif_timeout)
676{
677 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
678
679 if (netif_timeout > TA_NETIF_TIMEOUT_MAX) {
680 pr_err("Requested Network Interface Timeout %u larger"
681 " than maximum %u\n", netif_timeout,
682 TA_NETIF_TIMEOUT_MAX);
683 return -EINVAL;
684 } else if (netif_timeout < TA_NETIF_TIMEOUT_MIN) {
685 pr_err("Requested Network Interface Timeout %u smaller"
686 " than minimum %u\n", netif_timeout,
687 TA_NETIF_TIMEOUT_MIN);
688 return -EINVAL;
689 }
690
691 a->netif_timeout = netif_timeout;
692 pr_debug("Set Network Interface Timeout to %u for"
693 " Target Portal Group %hu\n", a->netif_timeout, tpg->tpgt);
694
695 return 0;
696}
697
698int iscsit_ta_generate_node_acls(
699 struct iscsi_portal_group *tpg,
700 u32 flag)
701{
702 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
703
704 if ((flag != 0) && (flag != 1)) {
705 pr_err("Illegal value %d\n", flag);
706 return -EINVAL;
707 }
708
709 a->generate_node_acls = flag;
710 pr_debug("iSCSI_TPG[%hu] - Generate Initiator Portal Group ACLs: %s\n",
711 tpg->tpgt, (a->generate_node_acls) ? "Enabled" : "Disabled");
712
713 if (flag == 1 && a->cache_dynamic_acls == 0) {
714 pr_debug("Explicitly setting cache_dynamic_acls=1 when "
715 "generate_node_acls=1\n");
716 a->cache_dynamic_acls = 1;
717 }
718
719 return 0;
720}
721
722int iscsit_ta_default_cmdsn_depth(
723 struct iscsi_portal_group *tpg,
724 u32 tcq_depth)
725{
726 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
727
728 if (tcq_depth > TA_DEFAULT_CMDSN_DEPTH_MAX) {
729 pr_err("Requested Default Queue Depth: %u larger"
730 " than maximum %u\n", tcq_depth,
731 TA_DEFAULT_CMDSN_DEPTH_MAX);
732 return -EINVAL;
733 } else if (tcq_depth < TA_DEFAULT_CMDSN_DEPTH_MIN) {
734 pr_err("Requested Default Queue Depth: %u smaller"
735 " than minimum %u\n", tcq_depth,
736 TA_DEFAULT_CMDSN_DEPTH_MIN);
737 return -EINVAL;
738 }
739
740 a->default_cmdsn_depth = tcq_depth;
741 pr_debug("iSCSI_TPG[%hu] - Set Default CmdSN TCQ Depth to %u\n",
742 tpg->tpgt, a->default_cmdsn_depth);
743
744 return 0;
745}
746
747int iscsit_ta_cache_dynamic_acls(
748 struct iscsi_portal_group *tpg,
749 u32 flag)
750{
751 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
752
753 if ((flag != 0) && (flag != 1)) {
754 pr_err("Illegal value %d\n", flag);
755 return -EINVAL;
756 }
757
758 if (a->generate_node_acls == 1 && flag == 0) {
759 pr_debug("Skipping cache_dynamic_acls=0 when"
760 " generate_node_acls=1\n");
761 return 0;
762 }
763
764 a->cache_dynamic_acls = flag;
765 pr_debug("iSCSI_TPG[%hu] - Cache Dynamic Initiator Portal Group"
766 " ACLs %s\n", tpg->tpgt, (a->cache_dynamic_acls) ?
767 "Enabled" : "Disabled");
768
769 return 0;
770}
771
772int iscsit_ta_demo_mode_write_protect(
773 struct iscsi_portal_group *tpg,
774 u32 flag)
775{
776 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
777
778 if ((flag != 0) && (flag != 1)) {
779 pr_err("Illegal value %d\n", flag);
780 return -EINVAL;
781 }
782
783 a->demo_mode_write_protect = flag;
784 pr_debug("iSCSI_TPG[%hu] - Demo Mode Write Protect bit: %s\n",
785 tpg->tpgt, (a->demo_mode_write_protect) ? "ON" : "OFF");
786
787 return 0;
788}
789
790int iscsit_ta_prod_mode_write_protect(
791 struct iscsi_portal_group *tpg,
792 u32 flag)
793{
794 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
795
796 if ((flag != 0) && (flag != 1)) {
797 pr_err("Illegal value %d\n", flag);
798 return -EINVAL;
799 }
800
801 a->prod_mode_write_protect = flag;
802 pr_debug("iSCSI_TPG[%hu] - Production Mode Write Protect bit:"
803 " %s\n", tpg->tpgt, (a->prod_mode_write_protect) ?
804 "ON" : "OFF");
805
806 return 0;
807}
808
809int iscsit_ta_demo_mode_discovery(
810 struct iscsi_portal_group *tpg,
811 u32 flag)
812{
813 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
814
815 if ((flag != 0) && (flag != 1)) {
816 pr_err("Illegal value %d\n", flag);
817 return -EINVAL;
818 }
819
820 a->demo_mode_discovery = flag;
821 pr_debug("iSCSI_TPG[%hu] - Demo Mode Discovery bit:"
822 " %s\n", tpg->tpgt, (a->demo_mode_discovery) ?
823 "ON" : "OFF");
824
825 return 0;
826}
827
828int iscsit_ta_default_erl(
829 struct iscsi_portal_group *tpg,
830 u32 default_erl)
831{
832 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
833
834 if ((default_erl != 0) && (default_erl != 1) && (default_erl != 2)) {
835 pr_err("Illegal value for default_erl: %u\n", default_erl);
836 return -EINVAL;
837 }
838
839 a->default_erl = default_erl;
840 pr_debug("iSCSI_TPG[%hu] - DefaultERL: %u\n", tpg->tpgt, a->default_erl);
841
842 return 0;
843}
844
845int iscsit_ta_t10_pi(
846 struct iscsi_portal_group *tpg,
847 u32 flag)
848{
849 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
850
851 if ((flag != 0) && (flag != 1)) {
852 pr_err("Illegal value %d\n", flag);
853 return -EINVAL;
854 }
855
856 a->t10_pi = flag;
857 pr_debug("iSCSI_TPG[%hu] - T10 Protection information bit:"
858 " %s\n", tpg->tpgt, (a->t10_pi) ?
859 "ON" : "OFF");
860
861 return 0;
862}
863
864int iscsit_ta_fabric_prot_type(
865 struct iscsi_portal_group *tpg,
866 u32 prot_type)
867{
868 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
869
870 if ((prot_type != 0) && (prot_type != 1) && (prot_type != 3)) {
871 pr_err("Illegal value for fabric_prot_type: %u\n", prot_type);
872 return -EINVAL;
873 }
874
875 a->fabric_prot_type = prot_type;
876 pr_debug("iSCSI_TPG[%hu] - T10 Fabric Protection Type: %u\n",
877 tpg->tpgt, prot_type);
878
879 return 0;
880}
881
882int iscsit_ta_tpg_enabled_sendtargets(
883 struct iscsi_portal_group *tpg,
884 u32 flag)
885{
886 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
887
888 if ((flag != 0) && (flag != 1)) {
889 pr_err("Illegal value %d\n", flag);
890 return -EINVAL;
891 }
892
893 a->tpg_enabled_sendtargets = flag;
894 pr_debug("iSCSI_TPG[%hu] - TPG enabled bit required for SendTargets:"
895 " %s\n", tpg->tpgt, (a->tpg_enabled_sendtargets) ? "ON" : "OFF");
896
897 return 0;
898}
899
900int iscsit_ta_login_keys_workaround(
901 struct iscsi_portal_group *tpg,
902 u32 flag)
903{
904 struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
905
906 if ((flag != 0) && (flag != 1)) {
907 pr_err("Illegal value %d\n", flag);
908 return -EINVAL;
909 }
910
911 a->login_keys_workaround = flag;
912 pr_debug("iSCSI_TPG[%hu] - TPG enabled bit for login keys workaround: %s ",
913 tpg->tpgt, (a->login_keys_workaround) ? "ON" : "OFF");
914
915 return 0;
916}
917
