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e48354ce NB |
1 | /******************************************************************************* |
2 | * This file contains iSCSI Target Portal Group related functions. | |
3 | * | |
4 | * \u00a9 Copyright 2007-2011 RisingTide Systems LLC. | |
5 | * | |
6 | * Licensed to the Linux Foundation under the General Public License (GPL) version 2. | |
7 | * | |
8 | * Author: Nicholas A. Bellinger <nab@linux-iscsi.org> | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | ******************************************************************************/ | |
20 | ||
21 | #include <target/target_core_base.h> | |
c4795fb2 | 22 | #include <target/target_core_fabric.h> |
e48354ce | 23 | #include <target/target_core_configfs.h> |
e48354ce NB |
24 | |
25 | #include "iscsi_target_core.h" | |
26 | #include "iscsi_target_erl0.h" | |
27 | #include "iscsi_target_login.h" | |
28 | #include "iscsi_target_nodeattrib.h" | |
29 | #include "iscsi_target_tpg.h" | |
30 | #include "iscsi_target_util.h" | |
31 | #include "iscsi_target.h" | |
32 | #include "iscsi_target_parameters.h" | |
33 | ||
34 | struct 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 | mutex_init(&tpg->np_login_lock); | |
51 | spin_lock_init(&tpg->tpg_state_lock); | |
52 | spin_lock_init(&tpg->tpg_np_lock); | |
53 | ||
54 | return tpg; | |
55 | } | |
56 | ||
57 | static void iscsit_set_default_tpg_attribs(struct iscsi_portal_group *); | |
58 | ||
59 | int 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, | |
8359cf43 | 73 | NULL, &tpg->tpg_se_tpg, tpg, |
e48354ce NB |
74 | TRANSPORT_TPG_TYPE_DISCOVERY); |
75 | if (ret < 0) { | |
76 | kfree(tpg); | |
77 | return -1; | |
78 | } | |
79 | ||
80 | tpg->sid = 1; /* First Assigned LIO Session ID */ | |
81 | iscsit_set_default_tpg_attribs(tpg); | |
82 | ||
83 | if (iscsi_create_default_params(&tpg->param_list) < 0) | |
84 | goto out; | |
85 | /* | |
86 | * By default we disable authentication for discovery sessions, | |
87 | * this can be changed with: | |
88 | * | |
89 | * /sys/kernel/config/target/iscsi/discovery_auth/enforce_discovery_auth | |
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; | |
108 | out: | |
109 | if (tpg->sid == 1) | |
110 | core_tpg_deregister(&tpg->tpg_se_tpg); | |
111 | kfree(tpg); | |
112 | return -1; | |
113 | } | |
114 | ||
115 | void 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 | ||
128 | struct iscsi_portal_group *iscsit_get_tpg_from_np( | |
129 | struct iscsi_tiqn *tiqn, | |
130 | struct iscsi_np *np) | |
131 | { | |
132 | struct iscsi_portal_group *tpg = NULL; | |
133 | struct iscsi_tpg_np *tpg_np; | |
134 | ||
135 | spin_lock(&tiqn->tiqn_tpg_lock); | |
136 | list_for_each_entry(tpg, &tiqn->tiqn_tpg_list, tpg_list) { | |
137 | ||
138 | spin_lock(&tpg->tpg_state_lock); | |
139 | if (tpg->tpg_state == TPG_STATE_FREE) { | |
140 | spin_unlock(&tpg->tpg_state_lock); | |
141 | continue; | |
142 | } | |
143 | spin_unlock(&tpg->tpg_state_lock); | |
144 | ||
145 | spin_lock(&tpg->tpg_np_lock); | |
146 | list_for_each_entry(tpg_np, &tpg->tpg_gnp_list, tpg_np_list) { | |
147 | if (tpg_np->tpg_np == np) { | |
148 | spin_unlock(&tpg->tpg_np_lock); | |
149 | spin_unlock(&tiqn->tiqn_tpg_lock); | |
150 | return tpg; | |
151 | } | |
152 | } | |
153 | spin_unlock(&tpg->tpg_np_lock); | |
154 | } | |
155 | spin_unlock(&tiqn->tiqn_tpg_lock); | |
156 | ||
157 | return NULL; | |
158 | } | |
159 | ||
160 | int iscsit_get_tpg( | |
161 | struct iscsi_portal_group *tpg) | |
162 | { | |
163 | int ret; | |
164 | ||
165 | ret = mutex_lock_interruptible(&tpg->tpg_access_lock); | |
166 | return ((ret != 0) || signal_pending(current)) ? -1 : 0; | |
167 | } | |
168 | ||
169 | void iscsit_put_tpg(struct iscsi_portal_group *tpg) | |
170 | { | |
171 | mutex_unlock(&tpg->tpg_access_lock); | |
172 | } | |
173 | ||
174 | static void iscsit_clear_tpg_np_login_thread( | |
175 | struct iscsi_tpg_np *tpg_np, | |
176 | struct iscsi_portal_group *tpg) | |
177 | { | |
178 | if (!tpg_np->tpg_np) { | |
179 | pr_err("struct iscsi_tpg_np->tpg_np is NULL!\n"); | |
180 | return; | |
181 | } | |
182 | ||
183 | iscsit_reset_np_thread(tpg_np->tpg_np, tpg_np, tpg); | |
184 | } | |
185 | ||
186 | void iscsit_clear_tpg_np_login_threads( | |
187 | struct iscsi_portal_group *tpg) | |
188 | { | |
189 | struct iscsi_tpg_np *tpg_np; | |
190 | ||
191 | spin_lock(&tpg->tpg_np_lock); | |
192 | list_for_each_entry(tpg_np, &tpg->tpg_gnp_list, tpg_np_list) { | |
193 | if (!tpg_np->tpg_np) { | |
194 | pr_err("struct iscsi_tpg_np->tpg_np is NULL!\n"); | |
195 | continue; | |
196 | } | |
197 | spin_unlock(&tpg->tpg_np_lock); | |
198 | iscsit_clear_tpg_np_login_thread(tpg_np, tpg); | |
199 | spin_lock(&tpg->tpg_np_lock); | |
200 | } | |
201 | spin_unlock(&tpg->tpg_np_lock); | |
202 | } | |
203 | ||
204 | void iscsit_tpg_dump_params(struct iscsi_portal_group *tpg) | |
205 | { | |
206 | iscsi_print_params(tpg->param_list); | |
207 | } | |
208 | ||
209 | static void iscsit_set_default_tpg_attribs(struct iscsi_portal_group *tpg) | |
210 | { | |
211 | struct iscsi_tpg_attrib *a = &tpg->tpg_attrib; | |
212 | ||
213 | a->authentication = TA_AUTHENTICATION; | |
214 | a->login_timeout = TA_LOGIN_TIMEOUT; | |
215 | a->netif_timeout = TA_NETIF_TIMEOUT; | |
216 | a->default_cmdsn_depth = TA_DEFAULT_CMDSN_DEPTH; | |
217 | a->generate_node_acls = TA_GENERATE_NODE_ACLS; | |
218 | a->cache_dynamic_acls = TA_CACHE_DYNAMIC_ACLS; | |
219 | a->demo_mode_write_protect = TA_DEMO_MODE_WRITE_PROTECT; | |
220 | a->prod_mode_write_protect = TA_PROD_MODE_WRITE_PROTECT; | |
221 | } | |
222 | ||
223 | int iscsit_tpg_add_portal_group(struct iscsi_tiqn *tiqn, struct iscsi_portal_group *tpg) | |
224 | { | |
225 | if (tpg->tpg_state != TPG_STATE_FREE) { | |
226 | pr_err("Unable to add iSCSI Target Portal Group: %d" | |
227 | " while not in TPG_STATE_FREE state.\n", tpg->tpgt); | |
228 | return -EEXIST; | |
229 | } | |
230 | iscsit_set_default_tpg_attribs(tpg); | |
231 | ||
232 | if (iscsi_create_default_params(&tpg->param_list) < 0) | |
233 | goto err_out; | |
234 | ||
235 | ISCSI_TPG_ATTRIB(tpg)->tpg = tpg; | |
236 | ||
237 | spin_lock(&tpg->tpg_state_lock); | |
238 | tpg->tpg_state = TPG_STATE_INACTIVE; | |
239 | spin_unlock(&tpg->tpg_state_lock); | |
240 | ||
241 | spin_lock(&tiqn->tiqn_tpg_lock); | |
242 | list_add_tail(&tpg->tpg_list, &tiqn->tiqn_tpg_list); | |
243 | tiqn->tiqn_ntpgs++; | |
244 | pr_debug("CORE[%s]_TPG[%hu] - Added iSCSI Target Portal Group\n", | |
245 | tiqn->tiqn, tpg->tpgt); | |
246 | spin_unlock(&tiqn->tiqn_tpg_lock); | |
247 | ||
248 | return 0; | |
249 | err_out: | |
250 | if (tpg->param_list) { | |
251 | iscsi_release_param_list(tpg->param_list); | |
252 | tpg->param_list = NULL; | |
253 | } | |
254 | kfree(tpg); | |
255 | return -ENOMEM; | |
256 | } | |
257 | ||
258 | int iscsit_tpg_del_portal_group( | |
259 | struct iscsi_tiqn *tiqn, | |
260 | struct iscsi_portal_group *tpg, | |
261 | int force) | |
262 | { | |
263 | u8 old_state = tpg->tpg_state; | |
264 | ||
265 | spin_lock(&tpg->tpg_state_lock); | |
266 | tpg->tpg_state = TPG_STATE_INACTIVE; | |
267 | spin_unlock(&tpg->tpg_state_lock); | |
268 | ||
269 | if (iscsit_release_sessions_for_tpg(tpg, force) < 0) { | |
270 | pr_err("Unable to delete iSCSI Target Portal Group:" | |
271 | " %hu while active sessions exist, and force=0\n", | |
272 | tpg->tpgt); | |
273 | tpg->tpg_state = old_state; | |
274 | return -EPERM; | |
275 | } | |
276 | ||
277 | core_tpg_clear_object_luns(&tpg->tpg_se_tpg); | |
278 | ||
279 | if (tpg->param_list) { | |
280 | iscsi_release_param_list(tpg->param_list); | |
281 | tpg->param_list = NULL; | |
282 | } | |
283 | ||
284 | core_tpg_deregister(&tpg->tpg_se_tpg); | |
285 | ||
286 | spin_lock(&tpg->tpg_state_lock); | |
287 | tpg->tpg_state = TPG_STATE_FREE; | |
288 | spin_unlock(&tpg->tpg_state_lock); | |
289 | ||
290 | spin_lock(&tiqn->tiqn_tpg_lock); | |
291 | tiqn->tiqn_ntpgs--; | |
292 | list_del(&tpg->tpg_list); | |
293 | spin_unlock(&tiqn->tiqn_tpg_lock); | |
294 | ||
295 | pr_debug("CORE[%s]_TPG[%hu] - Deleted iSCSI Target Portal Group\n", | |
296 | tiqn->tiqn, tpg->tpgt); | |
297 | ||
298 | kfree(tpg); | |
299 | return 0; | |
300 | } | |
301 | ||
302 | int iscsit_tpg_enable_portal_group(struct iscsi_portal_group *tpg) | |
303 | { | |
304 | struct iscsi_param *param; | |
305 | struct iscsi_tiqn *tiqn = tpg->tpg_tiqn; | |
617a0c2e | 306 | int ret; |
e48354ce NB |
307 | |
308 | spin_lock(&tpg->tpg_state_lock); | |
309 | if (tpg->tpg_state == TPG_STATE_ACTIVE) { | |
310 | pr_err("iSCSI target portal group: %hu is already" | |
311 | " active, ignoring request.\n", tpg->tpgt); | |
312 | spin_unlock(&tpg->tpg_state_lock); | |
313 | return -EINVAL; | |
314 | } | |
315 | /* | |
316 | * Make sure that AuthMethod does not contain None as an option | |
317 | * unless explictly disabled. Set the default to CHAP if authentication | |
318 | * is enforced (as per default), and remove the NONE option. | |
319 | */ | |
320 | param = iscsi_find_param_from_key(AUTHMETHOD, tpg->param_list); | |
321 | if (!param) { | |
322 | spin_unlock(&tpg->tpg_state_lock); | |
617a0c2e | 323 | return -EINVAL; |
e48354ce NB |
324 | } |
325 | ||
326 | if (ISCSI_TPG_ATTRIB(tpg)->authentication) { | |
617a0c2e AG |
327 | if (!strcmp(param->value, NONE)) { |
328 | ret = iscsi_update_param_value(param, CHAP); | |
329 | if (ret) | |
330 | goto err; | |
e48354ce | 331 | } |
617a0c2e AG |
332 | |
333 | ret = iscsit_ta_authentication(tpg, 1); | |
334 | if (ret < 0) | |
335 | goto err; | |
e48354ce NB |
336 | } |
337 | ||
338 | tpg->tpg_state = TPG_STATE_ACTIVE; | |
339 | spin_unlock(&tpg->tpg_state_lock); | |
340 | ||
341 | spin_lock(&tiqn->tiqn_tpg_lock); | |
342 | tiqn->tiqn_active_tpgs++; | |
343 | pr_debug("iSCSI_TPG[%hu] - Enabled iSCSI Target Portal Group\n", | |
344 | tpg->tpgt); | |
345 | spin_unlock(&tiqn->tiqn_tpg_lock); | |
346 | ||
347 | return 0; | |
617a0c2e AG |
348 | |
349 | err: | |
350 | spin_unlock(&tpg->tpg_state_lock); | |
351 | return ret; | |
e48354ce NB |
352 | } |
353 | ||
354 | int iscsit_tpg_disable_portal_group(struct iscsi_portal_group *tpg, int force) | |
355 | { | |
356 | struct iscsi_tiqn *tiqn; | |
357 | u8 old_state = tpg->tpg_state; | |
358 | ||
359 | spin_lock(&tpg->tpg_state_lock); | |
360 | if (tpg->tpg_state == TPG_STATE_INACTIVE) { | |
361 | pr_err("iSCSI Target Portal Group: %hu is already" | |
362 | " inactive, ignoring request.\n", tpg->tpgt); | |
363 | spin_unlock(&tpg->tpg_state_lock); | |
364 | return -EINVAL; | |
365 | } | |
366 | tpg->tpg_state = TPG_STATE_INACTIVE; | |
367 | spin_unlock(&tpg->tpg_state_lock); | |
368 | ||
369 | iscsit_clear_tpg_np_login_threads(tpg); | |
370 | ||
371 | if (iscsit_release_sessions_for_tpg(tpg, force) < 0) { | |
372 | spin_lock(&tpg->tpg_state_lock); | |
373 | tpg->tpg_state = old_state; | |
374 | spin_unlock(&tpg->tpg_state_lock); | |
375 | pr_err("Unable to disable iSCSI Target Portal Group:" | |
376 | " %hu while active sessions exist, and force=0\n", | |
377 | tpg->tpgt); | |
378 | return -EPERM; | |
379 | } | |
380 | ||
381 | tiqn = tpg->tpg_tiqn; | |
382 | if (!tiqn || (tpg == iscsit_global->discovery_tpg)) | |
383 | return 0; | |
384 | ||
385 | spin_lock(&tiqn->tiqn_tpg_lock); | |
386 | tiqn->tiqn_active_tpgs--; | |
387 | pr_debug("iSCSI_TPG[%hu] - Disabled iSCSI Target Portal Group\n", | |
388 | tpg->tpgt); | |
389 | spin_unlock(&tiqn->tiqn_tpg_lock); | |
390 | ||
391 | return 0; | |
392 | } | |
393 | ||
394 | struct iscsi_node_attrib *iscsit_tpg_get_node_attrib( | |
395 | struct iscsi_session *sess) | |
396 | { | |
397 | struct se_session *se_sess = sess->se_sess; | |
398 | struct se_node_acl *se_nacl = se_sess->se_node_acl; | |
399 | struct iscsi_node_acl *acl = container_of(se_nacl, struct iscsi_node_acl, | |
400 | se_node_acl); | |
401 | ||
402 | return &acl->node_attrib; | |
403 | } | |
404 | ||
405 | struct iscsi_tpg_np *iscsit_tpg_locate_child_np( | |
406 | struct iscsi_tpg_np *tpg_np, | |
407 | int network_transport) | |
408 | { | |
409 | struct iscsi_tpg_np *tpg_np_child, *tpg_np_child_tmp; | |
410 | ||
411 | spin_lock(&tpg_np->tpg_np_parent_lock); | |
412 | list_for_each_entry_safe(tpg_np_child, tpg_np_child_tmp, | |
413 | &tpg_np->tpg_np_parent_list, tpg_np_child_list) { | |
414 | if (tpg_np_child->tpg_np->np_network_transport == | |
415 | network_transport) { | |
416 | spin_unlock(&tpg_np->tpg_np_parent_lock); | |
417 | return tpg_np_child; | |
418 | } | |
419 | } | |
420 | spin_unlock(&tpg_np->tpg_np_parent_lock); | |
421 | ||
422 | return NULL; | |
423 | } | |
424 | ||
425 | struct iscsi_tpg_np *iscsit_tpg_add_network_portal( | |
426 | struct iscsi_portal_group *tpg, | |
427 | struct __kernel_sockaddr_storage *sockaddr, | |
428 | char *ip_str, | |
429 | struct iscsi_tpg_np *tpg_np_parent, | |
430 | int network_transport) | |
431 | { | |
432 | struct iscsi_np *np; | |
433 | struct iscsi_tpg_np *tpg_np; | |
434 | ||
435 | tpg_np = kzalloc(sizeof(struct iscsi_tpg_np), GFP_KERNEL); | |
436 | if (!tpg_np) { | |
437 | pr_err("Unable to allocate memory for" | |
438 | " struct iscsi_tpg_np.\n"); | |
439 | return ERR_PTR(-ENOMEM); | |
440 | } | |
441 | ||
442 | np = iscsit_add_np(sockaddr, ip_str, network_transport); | |
443 | if (IS_ERR(np)) { | |
444 | kfree(tpg_np); | |
445 | return ERR_CAST(np); | |
446 | } | |
447 | ||
448 | INIT_LIST_HEAD(&tpg_np->tpg_np_list); | |
449 | INIT_LIST_HEAD(&tpg_np->tpg_np_child_list); | |
450 | INIT_LIST_HEAD(&tpg_np->tpg_np_parent_list); | |
451 | spin_lock_init(&tpg_np->tpg_np_parent_lock); | |
452 | tpg_np->tpg_np = np; | |
453 | tpg_np->tpg = tpg; | |
454 | ||
455 | spin_lock(&tpg->tpg_np_lock); | |
456 | list_add_tail(&tpg_np->tpg_np_list, &tpg->tpg_gnp_list); | |
457 | tpg->num_tpg_nps++; | |
458 | if (tpg->tpg_tiqn) | |
459 | tpg->tpg_tiqn->tiqn_num_tpg_nps++; | |
460 | spin_unlock(&tpg->tpg_np_lock); | |
461 | ||
462 | if (tpg_np_parent) { | |
463 | tpg_np->tpg_np_parent = tpg_np_parent; | |
464 | spin_lock(&tpg_np_parent->tpg_np_parent_lock); | |
465 | list_add_tail(&tpg_np->tpg_np_child_list, | |
466 | &tpg_np_parent->tpg_np_parent_list); | |
467 | spin_unlock(&tpg_np_parent->tpg_np_parent_lock); | |
468 | } | |
469 | ||
470 | pr_debug("CORE[%s] - Added Network Portal: %s:%hu,%hu on %s\n", | |
471 | tpg->tpg_tiqn->tiqn, np->np_ip, np->np_port, tpg->tpgt, | |
472 | (np->np_network_transport == ISCSI_TCP) ? "TCP" : "SCTP"); | |
473 | ||
474 | return tpg_np; | |
475 | } | |
476 | ||
477 | static int iscsit_tpg_release_np( | |
478 | struct iscsi_tpg_np *tpg_np, | |
479 | struct iscsi_portal_group *tpg, | |
480 | struct iscsi_np *np) | |
481 | { | |
482 | iscsit_clear_tpg_np_login_thread(tpg_np, tpg); | |
483 | ||
484 | pr_debug("CORE[%s] - Removed Network Portal: %s:%hu,%hu on %s\n", | |
485 | tpg->tpg_tiqn->tiqn, np->np_ip, np->np_port, tpg->tpgt, | |
486 | (np->np_network_transport == ISCSI_TCP) ? "TCP" : "SCTP"); | |
487 | ||
488 | tpg_np->tpg_np = NULL; | |
489 | tpg_np->tpg = NULL; | |
490 | kfree(tpg_np); | |
491 | /* | |
492 | * iscsit_del_np() will shutdown struct iscsi_np when last TPG reference is released. | |
493 | */ | |
494 | return iscsit_del_np(np); | |
495 | } | |
496 | ||
497 | int iscsit_tpg_del_network_portal( | |
498 | struct iscsi_portal_group *tpg, | |
499 | struct iscsi_tpg_np *tpg_np) | |
500 | { | |
501 | struct iscsi_np *np; | |
502 | struct iscsi_tpg_np *tpg_np_child, *tpg_np_child_tmp; | |
503 | int ret = 0; | |
504 | ||
505 | np = tpg_np->tpg_np; | |
506 | if (!np) { | |
507 | pr_err("Unable to locate struct iscsi_np from" | |
508 | " struct iscsi_tpg_np\n"); | |
509 | return -EINVAL; | |
510 | } | |
511 | ||
512 | if (!tpg_np->tpg_np_parent) { | |
513 | /* | |
514 | * We are the parent tpg network portal. Release all of the | |
515 | * child tpg_np's (eg: the non ISCSI_TCP ones) on our parent | |
516 | * list first. | |
517 | */ | |
518 | list_for_each_entry_safe(tpg_np_child, tpg_np_child_tmp, | |
519 | &tpg_np->tpg_np_parent_list, | |
520 | tpg_np_child_list) { | |
521 | ret = iscsit_tpg_del_network_portal(tpg, tpg_np_child); | |
522 | if (ret < 0) | |
523 | pr_err("iscsit_tpg_del_network_portal()" | |
524 | " failed: %d\n", ret); | |
525 | } | |
526 | } else { | |
527 | /* | |
528 | * We are not the parent ISCSI_TCP tpg network portal. Release | |
529 | * our own network portals from the child list. | |
530 | */ | |
531 | spin_lock(&tpg_np->tpg_np_parent->tpg_np_parent_lock); | |
532 | list_del(&tpg_np->tpg_np_child_list); | |
533 | spin_unlock(&tpg_np->tpg_np_parent->tpg_np_parent_lock); | |
534 | } | |
535 | ||
536 | spin_lock(&tpg->tpg_np_lock); | |
537 | list_del(&tpg_np->tpg_np_list); | |
538 | tpg->num_tpg_nps--; | |
539 | if (tpg->tpg_tiqn) | |
540 | tpg->tpg_tiqn->tiqn_num_tpg_nps--; | |
541 | spin_unlock(&tpg->tpg_np_lock); | |
542 | ||
543 | return iscsit_tpg_release_np(tpg_np, tpg, np); | |
544 | } | |
545 | ||
546 | int iscsit_tpg_set_initiator_node_queue_depth( | |
547 | struct iscsi_portal_group *tpg, | |
548 | unsigned char *initiatorname, | |
549 | u32 queue_depth, | |
550 | int force) | |
551 | { | |
552 | return core_tpg_set_initiator_node_queue_depth(&tpg->tpg_se_tpg, | |
553 | initiatorname, queue_depth, force); | |
554 | } | |
555 | ||
556 | int iscsit_ta_authentication(struct iscsi_portal_group *tpg, u32 authentication) | |
557 | { | |
558 | unsigned char buf1[256], buf2[256], *none = NULL; | |
559 | int len; | |
560 | struct iscsi_param *param; | |
561 | struct iscsi_tpg_attrib *a = &tpg->tpg_attrib; | |
562 | ||
563 | if ((authentication != 1) && (authentication != 0)) { | |
564 | pr_err("Illegal value for authentication parameter:" | |
565 | " %u, ignoring request.\n", authentication); | |
617a0c2e | 566 | return -EINVAL; |
e48354ce NB |
567 | } |
568 | ||
569 | memset(buf1, 0, sizeof(buf1)); | |
570 | memset(buf2, 0, sizeof(buf2)); | |
571 | ||
572 | param = iscsi_find_param_from_key(AUTHMETHOD, tpg->param_list); | |
573 | if (!param) | |
574 | return -EINVAL; | |
575 | ||
576 | if (authentication) { | |
577 | snprintf(buf1, sizeof(buf1), "%s", param->value); | |
578 | none = strstr(buf1, NONE); | |
579 | if (!none) | |
580 | goto out; | |
581 | if (!strncmp(none + 4, ",", 1)) { | |
582 | if (!strcmp(buf1, none)) | |
583 | sprintf(buf2, "%s", none+5); | |
584 | else { | |
585 | none--; | |
586 | *none = '\0'; | |
587 | len = sprintf(buf2, "%s", buf1); | |
588 | none += 5; | |
589 | sprintf(buf2 + len, "%s", none); | |
590 | } | |
591 | } else { | |
592 | none--; | |
593 | *none = '\0'; | |
594 | sprintf(buf2, "%s", buf1); | |
595 | } | |
596 | if (iscsi_update_param_value(param, buf2) < 0) | |
597 | return -EINVAL; | |
598 | } else { | |
599 | snprintf(buf1, sizeof(buf1), "%s", param->value); | |
600 | none = strstr(buf1, NONE); | |
ee1b1b9c | 601 | if (none) |
e48354ce NB |
602 | goto out; |
603 | strncat(buf1, ",", strlen(",")); | |
604 | strncat(buf1, NONE, strlen(NONE)); | |
605 | if (iscsi_update_param_value(param, buf1) < 0) | |
606 | return -EINVAL; | |
607 | } | |
608 | ||
609 | out: | |
610 | a->authentication = authentication; | |
611 | pr_debug("%s iSCSI Authentication Methods for TPG: %hu.\n", | |
612 | a->authentication ? "Enforcing" : "Disabling", tpg->tpgt); | |
613 | ||
614 | return 0; | |
615 | } | |
616 | ||
617 | int iscsit_ta_login_timeout( | |
618 | struct iscsi_portal_group *tpg, | |
619 | u32 login_timeout) | |
620 | { | |
621 | struct iscsi_tpg_attrib *a = &tpg->tpg_attrib; | |
622 | ||
623 | if (login_timeout > TA_LOGIN_TIMEOUT_MAX) { | |
624 | pr_err("Requested Login Timeout %u larger than maximum" | |
625 | " %u\n", login_timeout, TA_LOGIN_TIMEOUT_MAX); | |
626 | return -EINVAL; | |
627 | } else if (login_timeout < TA_LOGIN_TIMEOUT_MIN) { | |
628 | pr_err("Requested Logout Timeout %u smaller than" | |
629 | " minimum %u\n", login_timeout, TA_LOGIN_TIMEOUT_MIN); | |
630 | return -EINVAL; | |
631 | } | |
632 | ||
633 | a->login_timeout = login_timeout; | |
634 | pr_debug("Set Logout Timeout to %u for Target Portal Group" | |
635 | " %hu\n", a->login_timeout, tpg->tpgt); | |
636 | ||
637 | return 0; | |
638 | } | |
639 | ||
640 | int iscsit_ta_netif_timeout( | |
641 | struct iscsi_portal_group *tpg, | |
642 | u32 netif_timeout) | |
643 | { | |
644 | struct iscsi_tpg_attrib *a = &tpg->tpg_attrib; | |
645 | ||
646 | if (netif_timeout > TA_NETIF_TIMEOUT_MAX) { | |
647 | pr_err("Requested Network Interface Timeout %u larger" | |
648 | " than maximum %u\n", netif_timeout, | |
649 | TA_NETIF_TIMEOUT_MAX); | |
650 | return -EINVAL; | |
651 | } else if (netif_timeout < TA_NETIF_TIMEOUT_MIN) { | |
652 | pr_err("Requested Network Interface Timeout %u smaller" | |
653 | " than minimum %u\n", netif_timeout, | |
654 | TA_NETIF_TIMEOUT_MIN); | |
655 | return -EINVAL; | |
656 | } | |
657 | ||
658 | a->netif_timeout = netif_timeout; | |
659 | pr_debug("Set Network Interface Timeout to %u for" | |
660 | " Target Portal Group %hu\n", a->netif_timeout, tpg->tpgt); | |
661 | ||
662 | return 0; | |
663 | } | |
664 | ||
665 | int iscsit_ta_generate_node_acls( | |
666 | struct iscsi_portal_group *tpg, | |
667 | u32 flag) | |
668 | { | |
669 | struct iscsi_tpg_attrib *a = &tpg->tpg_attrib; | |
670 | ||
671 | if ((flag != 0) && (flag != 1)) { | |
672 | pr_err("Illegal value %d\n", flag); | |
673 | return -EINVAL; | |
674 | } | |
675 | ||
676 | a->generate_node_acls = flag; | |
677 | pr_debug("iSCSI_TPG[%hu] - Generate Initiator Portal Group ACLs: %s\n", | |
678 | tpg->tpgt, (a->generate_node_acls) ? "Enabled" : "Disabled"); | |
679 | ||
680 | return 0; | |
681 | } | |
682 | ||
683 | int iscsit_ta_default_cmdsn_depth( | |
684 | struct iscsi_portal_group *tpg, | |
685 | u32 tcq_depth) | |
686 | { | |
687 | struct iscsi_tpg_attrib *a = &tpg->tpg_attrib; | |
688 | ||
689 | if (tcq_depth > TA_DEFAULT_CMDSN_DEPTH_MAX) { | |
690 | pr_err("Requested Default Queue Depth: %u larger" | |
691 | " than maximum %u\n", tcq_depth, | |
692 | TA_DEFAULT_CMDSN_DEPTH_MAX); | |
693 | return -EINVAL; | |
694 | } else if (tcq_depth < TA_DEFAULT_CMDSN_DEPTH_MIN) { | |
695 | pr_err("Requested Default Queue Depth: %u smaller" | |
696 | " than minimum %u\n", tcq_depth, | |
697 | TA_DEFAULT_CMDSN_DEPTH_MIN); | |
698 | return -EINVAL; | |
699 | } | |
700 | ||
701 | a->default_cmdsn_depth = tcq_depth; | |
702 | pr_debug("iSCSI_TPG[%hu] - Set Default CmdSN TCQ Depth to %u\n", | |
703 | tpg->tpgt, a->default_cmdsn_depth); | |
704 | ||
705 | return 0; | |
706 | } | |
707 | ||
708 | int iscsit_ta_cache_dynamic_acls( | |
709 | struct iscsi_portal_group *tpg, | |
710 | u32 flag) | |
711 | { | |
712 | struct iscsi_tpg_attrib *a = &tpg->tpg_attrib; | |
713 | ||
714 | if ((flag != 0) && (flag != 1)) { | |
715 | pr_err("Illegal value %d\n", flag); | |
716 | return -EINVAL; | |
717 | } | |
718 | ||
719 | a->cache_dynamic_acls = flag; | |
720 | pr_debug("iSCSI_TPG[%hu] - Cache Dynamic Initiator Portal Group" | |
721 | " ACLs %s\n", tpg->tpgt, (a->cache_dynamic_acls) ? | |
722 | "Enabled" : "Disabled"); | |
723 | ||
724 | return 0; | |
725 | } | |
726 | ||
727 | int iscsit_ta_demo_mode_write_protect( | |
728 | struct iscsi_portal_group *tpg, | |
729 | u32 flag) | |
730 | { | |
731 | struct iscsi_tpg_attrib *a = &tpg->tpg_attrib; | |
732 | ||
733 | if ((flag != 0) && (flag != 1)) { | |
734 | pr_err("Illegal value %d\n", flag); | |
735 | return -EINVAL; | |
736 | } | |
737 | ||
738 | a->demo_mode_write_protect = flag; | |
739 | pr_debug("iSCSI_TPG[%hu] - Demo Mode Write Protect bit: %s\n", | |
740 | tpg->tpgt, (a->demo_mode_write_protect) ? "ON" : "OFF"); | |
741 | ||
742 | return 0; | |
743 | } | |
744 | ||
745 | int iscsit_ta_prod_mode_write_protect( | |
746 | struct iscsi_portal_group *tpg, | |
747 | u32 flag) | |
748 | { | |
749 | struct iscsi_tpg_attrib *a = &tpg->tpg_attrib; | |
750 | ||
751 | if ((flag != 0) && (flag != 1)) { | |
752 | pr_err("Illegal value %d\n", flag); | |
753 | return -EINVAL; | |
754 | } | |
755 | ||
756 | a->prod_mode_write_protect = flag; | |
757 | pr_debug("iSCSI_TPG[%hu] - Production Mode Write Protect bit:" | |
758 | " %s\n", tpg->tpgt, (a->prod_mode_write_protect) ? | |
759 | "ON" : "OFF"); | |
760 | ||
761 | return 0; | |
762 | } |