Commit | Line | Data |
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c66ac9db NB |
1 | /******************************************************************************* |
2 | * Filename: target_core_fabric_configfs.c | |
3 | * | |
4 | * This file contains generic fabric module configfs infrastructure for | |
5 | * TCM v4.x code | |
6 | * | |
4c76251e | 7 | * (c) Copyright 2010-2013 Datera, Inc. |
c66ac9db | 8 | * |
fd9a11d7 | 9 | * Nicholas A. Bellinger <nab@linux-iscsi.org> |
c66ac9db NB |
10 | * |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or | |
14 | * (at your option) any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | ****************************************************************************/ | |
21 | ||
22 | #include <linux/module.h> | |
23 | #include <linux/moduleparam.h> | |
c66ac9db NB |
24 | #include <linux/utsname.h> |
25 | #include <linux/init.h> | |
26 | #include <linux/fs.h> | |
27 | #include <linux/namei.h> | |
28 | #include <linux/slab.h> | |
29 | #include <linux/types.h> | |
30 | #include <linux/delay.h> | |
31 | #include <linux/unistd.h> | |
32 | #include <linux/string.h> | |
33 | #include <linux/syscalls.h> | |
34 | #include <linux/configfs.h> | |
35 | ||
36 | #include <target/target_core_base.h> | |
c4795fb2 | 37 | #include <target/target_core_fabric.h> |
c66ac9db | 38 | |
e26d99ae | 39 | #include "target_core_internal.h" |
c66ac9db | 40 | #include "target_core_alua.h" |
c66ac9db NB |
41 | #include "target_core_pr.h" |
42 | ||
43 | #define TF_CIT_SETUP(_name, _item_ops, _group_ops, _attrs) \ | |
44 | static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf) \ | |
45 | { \ | |
968ebe75 | 46 | struct config_item_type *cit = &tf->tf_##_name##_cit; \ |
c66ac9db NB |
47 | \ |
48 | cit->ct_item_ops = _item_ops; \ | |
49 | cit->ct_group_ops = _group_ops; \ | |
50 | cit->ct_attrs = _attrs; \ | |
0dc2e8d1 | 51 | cit->ct_owner = tf->tf_ops->module; \ |
6708bb27 | 52 | pr_debug("Setup generic %s\n", __stringify(_name)); \ |
c66ac9db NB |
53 | } |
54 | ||
9ac8928e CH |
55 | #define TF_CIT_SETUP_DRV(_name, _item_ops, _group_ops) \ |
56 | static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf) \ | |
57 | { \ | |
968ebe75 | 58 | struct config_item_type *cit = &tf->tf_##_name##_cit; \ |
ef0caf8d | 59 | struct configfs_attribute **attrs = tf->tf_ops->tfc_##_name##_attrs; \ |
9ac8928e CH |
60 | \ |
61 | cit->ct_item_ops = _item_ops; \ | |
62 | cit->ct_group_ops = _group_ops; \ | |
63 | cit->ct_attrs = attrs; \ | |
0dc2e8d1 | 64 | cit->ct_owner = tf->tf_ops->module; \ |
9ac8928e CH |
65 | pr_debug("Setup generic %s\n", __stringify(_name)); \ |
66 | } | |
67 | ||
c66ac9db NB |
68 | /* Start of tfc_tpg_mappedlun_cit */ |
69 | ||
70 | static int target_fabric_mappedlun_link( | |
71 | struct config_item *lun_acl_ci, | |
72 | struct config_item *lun_ci) | |
73 | { | |
74 | struct se_dev_entry *deve; | |
75 | struct se_lun *lun = container_of(to_config_group(lun_ci), | |
76 | struct se_lun, lun_group); | |
77 | struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci), | |
78 | struct se_lun_acl, se_lun_group); | |
79 | struct se_portal_group *se_tpg; | |
80 | struct config_item *nacl_ci, *tpg_ci, *tpg_ci_s, *wwn_ci, *wwn_ci_s; | |
6bb82612 | 81 | int lun_access; |
0ff87549 NB |
82 | |
83 | if (lun->lun_link_magic != SE_LUN_LINK_MAGIC) { | |
84 | pr_err("Bad lun->lun_link_magic, not a valid lun_ci pointer:" | |
85 | " %p to struct lun: %p\n", lun_ci, lun); | |
86 | return -EFAULT; | |
87 | } | |
c66ac9db NB |
88 | /* |
89 | * Ensure that the source port exists | |
90 | */ | |
adf653f9 CH |
91 | if (!lun->lun_se_dev) { |
92 | pr_err("Source se_lun->lun_se_dev does not exist\n"); | |
c66ac9db NB |
93 | return -EINVAL; |
94 | } | |
adf653f9 | 95 | se_tpg = lun->lun_tpg; |
c66ac9db NB |
96 | |
97 | nacl_ci = &lun_acl_ci->ci_parent->ci_group->cg_item; | |
98 | tpg_ci = &nacl_ci->ci_group->cg_item; | |
99 | wwn_ci = &tpg_ci->ci_group->cg_item; | |
100 | tpg_ci_s = &lun_ci->ci_parent->ci_group->cg_item; | |
101 | wwn_ci_s = &tpg_ci_s->ci_group->cg_item; | |
102 | /* | |
103 | * Make sure the SymLink is going to the same $FABRIC/$WWN/tpgt_$TPGT | |
104 | */ | |
105 | if (strcmp(config_item_name(wwn_ci), config_item_name(wwn_ci_s))) { | |
6708bb27 | 106 | pr_err("Illegal Initiator ACL SymLink outside of %s\n", |
c66ac9db NB |
107 | config_item_name(wwn_ci)); |
108 | return -EINVAL; | |
109 | } | |
110 | if (strcmp(config_item_name(tpg_ci), config_item_name(tpg_ci_s))) { | |
6708bb27 | 111 | pr_err("Illegal Initiator ACL Symlink outside of %s" |
c66ac9db NB |
112 | " TPGT: %s\n", config_item_name(wwn_ci), |
113 | config_item_name(tpg_ci)); | |
114 | return -EINVAL; | |
115 | } | |
116 | /* | |
117 | * If this struct se_node_acl was dynamically generated with | |
118 | * tpg_1/attrib/generate_node_acls=1, use the existing deve->lun_flags, | |
119 | * which be will write protected (READ-ONLY) when | |
120 | * tpg_1/attrib/demo_mode_write_protect=1 | |
121 | */ | |
29a05dee NB |
122 | rcu_read_lock(); |
123 | deve = target_nacl_find_deve(lacl->se_lun_nacl, lacl->mapped_lun); | |
124 | if (deve) | |
c66ac9db NB |
125 | lun_access = deve->lun_flags; |
126 | else | |
127 | lun_access = | |
e3d6f909 | 128 | (se_tpg->se_tpg_tfo->tpg_check_prod_mode_write_protect( |
c66ac9db NB |
129 | se_tpg)) ? TRANSPORT_LUNFLAGS_READ_ONLY : |
130 | TRANSPORT_LUNFLAGS_READ_WRITE; | |
29a05dee | 131 | rcu_read_unlock(); |
c66ac9db NB |
132 | /* |
133 | * Determine the actual mapped LUN value user wants.. | |
134 | * | |
135 | * This value is what the SCSI Initiator actually sees the | |
6bb82612 | 136 | * $FABRIC/$WWPN/$TPGT/lun/lun_* as on their SCSI Initiator Ports. |
c66ac9db | 137 | */ |
6bb82612 | 138 | return core_dev_add_initiator_node_lun_acl(se_tpg, lacl, lun, lun_access); |
c66ac9db NB |
139 | } |
140 | ||
141 | static int target_fabric_mappedlun_unlink( | |
142 | struct config_item *lun_acl_ci, | |
143 | struct config_item *lun_ci) | |
144 | { | |
c66ac9db NB |
145 | struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci), |
146 | struct se_lun_acl, se_lun_group); | |
29a05dee NB |
147 | struct se_lun *lun = container_of(to_config_group(lun_ci), |
148 | struct se_lun, lun_group); | |
c66ac9db | 149 | |
adf653f9 | 150 | return core_dev_del_initiator_node_lun_acl(lun, lacl); |
c66ac9db NB |
151 | } |
152 | ||
2eafd729 CH |
153 | static struct se_lun_acl *item_to_lun_acl(struct config_item *item) |
154 | { | |
155 | return container_of(to_config_group(item), struct se_lun_acl, | |
156 | se_lun_group); | |
157 | } | |
c66ac9db | 158 | |
2eafd729 CH |
159 | static ssize_t target_fabric_mappedlun_write_protect_show( |
160 | struct config_item *item, char *page) | |
c66ac9db | 161 | { |
2eafd729 | 162 | struct se_lun_acl *lacl = item_to_lun_acl(item); |
c66ac9db NB |
163 | struct se_node_acl *se_nacl = lacl->se_lun_nacl; |
164 | struct se_dev_entry *deve; | |
29a05dee NB |
165 | ssize_t len = 0; |
166 | ||
167 | rcu_read_lock(); | |
168 | deve = target_nacl_find_deve(se_nacl, lacl->mapped_lun); | |
169 | if (deve) { | |
170 | len = sprintf(page, "%d\n", | |
171 | (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY) ? 1 : 0); | |
172 | } | |
173 | rcu_read_unlock(); | |
c66ac9db NB |
174 | |
175 | return len; | |
176 | } | |
177 | ||
2eafd729 CH |
178 | static ssize_t target_fabric_mappedlun_write_protect_store( |
179 | struct config_item *item, const char *page, size_t count) | |
c66ac9db | 180 | { |
2eafd729 | 181 | struct se_lun_acl *lacl = item_to_lun_acl(item); |
c66ac9db NB |
182 | struct se_node_acl *se_nacl = lacl->se_lun_nacl; |
183 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
184 | unsigned long op; | |
57103d7f | 185 | int ret; |
c66ac9db | 186 | |
57103d7f JH |
187 | ret = kstrtoul(page, 0, &op); |
188 | if (ret) | |
189 | return ret; | |
c66ac9db NB |
190 | |
191 | if ((op != 1) && (op != 0)) | |
192 | return -EINVAL; | |
193 | ||
194 | core_update_device_list_access(lacl->mapped_lun, (op) ? | |
195 | TRANSPORT_LUNFLAGS_READ_ONLY : | |
196 | TRANSPORT_LUNFLAGS_READ_WRITE, | |
197 | lacl->se_lun_nacl); | |
198 | ||
6708bb27 | 199 | pr_debug("%s_ConfigFS: Changed Initiator ACL: %s" |
f2d30680 | 200 | " Mapped LUN: %llu Write Protect bit to %s\n", |
e3d6f909 | 201 | se_tpg->se_tpg_tfo->get_fabric_name(), |
b6a54b8d | 202 | se_nacl->initiatorname, lacl->mapped_lun, (op) ? "ON" : "OFF"); |
c66ac9db NB |
203 | |
204 | return count; | |
205 | ||
206 | } | |
207 | ||
2eafd729 | 208 | CONFIGFS_ATTR(target_fabric_mappedlun_, write_protect); |
c66ac9db | 209 | |
2eafd729 CH |
210 | static struct configfs_attribute *target_fabric_mappedlun_attrs[] = { |
211 | &target_fabric_mappedlun_attr_write_protect, | |
212 | NULL, | |
213 | }; | |
c66ac9db | 214 | |
1f6fe7cb NB |
215 | static void target_fabric_mappedlun_release(struct config_item *item) |
216 | { | |
217 | struct se_lun_acl *lacl = container_of(to_config_group(item), | |
218 | struct se_lun_acl, se_lun_group); | |
219 | struct se_portal_group *se_tpg = lacl->se_lun_nacl->se_tpg; | |
220 | ||
221 | core_dev_free_initiator_node_lun_acl(se_tpg, lacl); | |
222 | } | |
223 | ||
c66ac9db | 224 | static struct configfs_item_operations target_fabric_mappedlun_item_ops = { |
1f6fe7cb | 225 | .release = target_fabric_mappedlun_release, |
c66ac9db NB |
226 | .allow_link = target_fabric_mappedlun_link, |
227 | .drop_link = target_fabric_mappedlun_unlink, | |
228 | }; | |
229 | ||
230 | TF_CIT_SETUP(tpg_mappedlun, &target_fabric_mappedlun_item_ops, NULL, | |
231 | target_fabric_mappedlun_attrs); | |
232 | ||
233 | /* End of tfc_tpg_mappedlun_cit */ | |
234 | ||
12d23384 NB |
235 | /* Start of tfc_tpg_mappedlun_port_cit */ |
236 | ||
237 | static struct config_group *target_core_mappedlun_stat_mkdir( | |
238 | struct config_group *group, | |
239 | const char *name) | |
240 | { | |
241 | return ERR_PTR(-ENOSYS); | |
242 | } | |
243 | ||
244 | static void target_core_mappedlun_stat_rmdir( | |
245 | struct config_group *group, | |
246 | struct config_item *item) | |
247 | { | |
248 | return; | |
249 | } | |
250 | ||
251 | static struct configfs_group_operations target_fabric_mappedlun_stat_group_ops = { | |
252 | .make_group = target_core_mappedlun_stat_mkdir, | |
253 | .drop_item = target_core_mappedlun_stat_rmdir, | |
254 | }; | |
255 | ||
256 | TF_CIT_SETUP(tpg_mappedlun_stat, NULL, &target_fabric_mappedlun_stat_group_ops, | |
257 | NULL); | |
258 | ||
259 | /* End of tfc_tpg_mappedlun_port_cit */ | |
260 | ||
2eafd729 CH |
261 | TF_CIT_SETUP_DRV(tpg_nacl_attrib, NULL, NULL); |
262 | TF_CIT_SETUP_DRV(tpg_nacl_auth, NULL, NULL); | |
263 | TF_CIT_SETUP_DRV(tpg_nacl_param, NULL, NULL); | |
c66ac9db NB |
264 | |
265 | /* Start of tfc_tpg_nacl_base_cit */ | |
266 | ||
c66ac9db NB |
267 | static struct config_group *target_fabric_make_mappedlun( |
268 | struct config_group *group, | |
269 | const char *name) | |
270 | { | |
271 | struct se_node_acl *se_nacl = container_of(group, | |
272 | struct se_node_acl, acl_group); | |
273 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
274 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
da0abaee | 275 | struct se_lun_acl *lacl = NULL; |
c66ac9db | 276 | struct config_item *acl_ci; |
12d23384 | 277 | struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; |
c66ac9db | 278 | char *buf; |
f2d30680 | 279 | unsigned long long mapped_lun; |
c66ac9db NB |
280 | int ret = 0; |
281 | ||
282 | acl_ci = &group->cg_item; | |
6708bb27 AG |
283 | if (!acl_ci) { |
284 | pr_err("Unable to locatel acl_ci\n"); | |
c66ac9db NB |
285 | return NULL; |
286 | } | |
287 | ||
288 | buf = kzalloc(strlen(name) + 1, GFP_KERNEL); | |
6708bb27 AG |
289 | if (!buf) { |
290 | pr_err("Unable to allocate memory for name buf\n"); | |
c66ac9db NB |
291 | return ERR_PTR(-ENOMEM); |
292 | } | |
293 | snprintf(buf, strlen(name) + 1, "%s", name); | |
294 | /* | |
295 | * Make sure user is creating iscsi/$IQN/$TPGT/acls/$INITIATOR/lun_$ID. | |
296 | */ | |
297 | if (strstr(buf, "lun_") != buf) { | |
6708bb27 | 298 | pr_err("Unable to locate \"lun_\" from buf: %s" |
c66ac9db NB |
299 | " name: %s\n", buf, name); |
300 | ret = -EINVAL; | |
301 | goto out; | |
302 | } | |
303 | /* | |
304 | * Determine the Mapped LUN value. This is what the SCSI Initiator | |
305 | * Port will actually see. | |
306 | */ | |
f2d30680 | 307 | ret = kstrtoull(buf + 4, 0, &mapped_lun); |
57103d7f JH |
308 | if (ret) |
309 | goto out; | |
c66ac9db | 310 | |
fcf29481 NB |
311 | lacl = core_dev_init_initiator_node_lun_acl(se_tpg, se_nacl, |
312 | mapped_lun, &ret); | |
6708bb27 | 313 | if (!lacl) { |
12d23384 | 314 | ret = -EINVAL; |
c66ac9db | 315 | goto out; |
12d23384 NB |
316 | } |
317 | ||
318 | lacl_cg = &lacl->se_lun_group; | |
13f6a914 | 319 | lacl_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, |
12d23384 NB |
320 | GFP_KERNEL); |
321 | if (!lacl_cg->default_groups) { | |
6708bb27 | 322 | pr_err("Unable to allocate lacl_cg->default_groups\n"); |
12d23384 NB |
323 | ret = -ENOMEM; |
324 | goto out; | |
325 | } | |
c66ac9db NB |
326 | |
327 | config_group_init_type_name(&lacl->se_lun_group, name, | |
968ebe75 | 328 | &tf->tf_tpg_mappedlun_cit); |
12d23384 | 329 | config_group_init_type_name(&lacl->ml_stat_grps.stat_group, |
968ebe75 | 330 | "statistics", &tf->tf_tpg_mappedlun_stat_cit); |
12d23384 NB |
331 | lacl_cg->default_groups[0] = &lacl->ml_stat_grps.stat_group; |
332 | lacl_cg->default_groups[1] = NULL; | |
333 | ||
e3d6f909 | 334 | ml_stat_grp = &lacl->ml_stat_grps.stat_group; |
13f6a914 | 335 | ml_stat_grp->default_groups = kmalloc(sizeof(struct config_group *) * 3, |
12d23384 NB |
336 | GFP_KERNEL); |
337 | if (!ml_stat_grp->default_groups) { | |
6708bb27 | 338 | pr_err("Unable to allocate ml_stat_grp->default_groups\n"); |
12d23384 NB |
339 | ret = -ENOMEM; |
340 | goto out; | |
341 | } | |
342 | target_stat_setup_mappedlun_default_groups(lacl); | |
c66ac9db NB |
343 | |
344 | kfree(buf); | |
345 | return &lacl->se_lun_group; | |
346 | out: | |
12d23384 NB |
347 | if (lacl_cg) |
348 | kfree(lacl_cg->default_groups); | |
da0abaee | 349 | kfree(lacl); |
c66ac9db NB |
350 | kfree(buf); |
351 | return ERR_PTR(ret); | |
352 | } | |
353 | ||
354 | static void target_fabric_drop_mappedlun( | |
355 | struct config_group *group, | |
356 | struct config_item *item) | |
357 | { | |
12d23384 NB |
358 | struct se_lun_acl *lacl = container_of(to_config_group(item), |
359 | struct se_lun_acl, se_lun_group); | |
360 | struct config_item *df_item; | |
361 | struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; | |
362 | int i; | |
363 | ||
e3d6f909 | 364 | ml_stat_grp = &lacl->ml_stat_grps.stat_group; |
12d23384 NB |
365 | for (i = 0; ml_stat_grp->default_groups[i]; i++) { |
366 | df_item = &ml_stat_grp->default_groups[i]->cg_item; | |
367 | ml_stat_grp->default_groups[i] = NULL; | |
368 | config_item_put(df_item); | |
369 | } | |
370 | kfree(ml_stat_grp->default_groups); | |
371 | ||
372 | lacl_cg = &lacl->se_lun_group; | |
373 | for (i = 0; lacl_cg->default_groups[i]; i++) { | |
374 | df_item = &lacl_cg->default_groups[i]->cg_item; | |
375 | lacl_cg->default_groups[i] = NULL; | |
376 | config_item_put(df_item); | |
377 | } | |
378 | kfree(lacl_cg->default_groups); | |
379 | ||
c66ac9db | 380 | config_item_put(item); |
1f6fe7cb NB |
381 | } |
382 | ||
383 | static void target_fabric_nacl_base_release(struct config_item *item) | |
384 | { | |
385 | struct se_node_acl *se_nacl = container_of(to_config_group(item), | |
386 | struct se_node_acl, acl_group); | |
c7d6a803 | 387 | struct target_fabric_configfs *tf = se_nacl->se_tpg->se_tpg_wwn->wwn_tf; |
1f6fe7cb | 388 | |
ef0caf8d CH |
389 | if (tf->tf_ops->fabric_cleanup_nodeacl) |
390 | tf->tf_ops->fabric_cleanup_nodeacl(se_nacl); | |
c7d6a803 | 391 | core_tpg_del_initiator_node_acl(se_nacl); |
c66ac9db NB |
392 | } |
393 | ||
394 | static struct configfs_item_operations target_fabric_nacl_base_item_ops = { | |
1f6fe7cb | 395 | .release = target_fabric_nacl_base_release, |
c66ac9db NB |
396 | }; |
397 | ||
398 | static struct configfs_group_operations target_fabric_nacl_base_group_ops = { | |
399 | .make_group = target_fabric_make_mappedlun, | |
400 | .drop_item = target_fabric_drop_mappedlun, | |
401 | }; | |
402 | ||
9ac8928e CH |
403 | TF_CIT_SETUP_DRV(tpg_nacl_base, &target_fabric_nacl_base_item_ops, |
404 | &target_fabric_nacl_base_group_ops); | |
c66ac9db NB |
405 | |
406 | /* End of tfc_tpg_nacl_base_cit */ | |
407 | ||
12d23384 NB |
408 | /* Start of tfc_node_fabric_stats_cit */ |
409 | /* | |
410 | * This is used as a placeholder for struct se_node_acl->acl_fabric_stat_group | |
411 | * to allow fabrics access to ->acl_fabric_stat_group->default_groups[] | |
412 | */ | |
413 | TF_CIT_SETUP(tpg_nacl_stat, NULL, NULL, NULL); | |
414 | ||
415 | /* End of tfc_wwn_fabric_stats_cit */ | |
416 | ||
c66ac9db NB |
417 | /* Start of tfc_tpg_nacl_cit */ |
418 | ||
419 | static struct config_group *target_fabric_make_nodeacl( | |
420 | struct config_group *group, | |
421 | const char *name) | |
422 | { | |
423 | struct se_portal_group *se_tpg = container_of(group, | |
424 | struct se_portal_group, tpg_acl_group); | |
425 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
426 | struct se_node_acl *se_nacl; | |
427 | struct config_group *nacl_cg; | |
428 | ||
c7d6a803 | 429 | se_nacl = core_tpg_add_initiator_node_acl(se_tpg, name); |
c66ac9db | 430 | if (IS_ERR(se_nacl)) |
e1750ba2 | 431 | return ERR_CAST(se_nacl); |
c66ac9db | 432 | |
ef0caf8d CH |
433 | if (tf->tf_ops->fabric_init_nodeacl) { |
434 | int ret = tf->tf_ops->fabric_init_nodeacl(se_nacl, name); | |
c7d6a803 CH |
435 | if (ret) { |
436 | core_tpg_del_initiator_node_acl(se_nacl); | |
437 | return ERR_PTR(ret); | |
438 | } | |
439 | } | |
440 | ||
c66ac9db NB |
441 | nacl_cg = &se_nacl->acl_group; |
442 | nacl_cg->default_groups = se_nacl->acl_default_groups; | |
443 | nacl_cg->default_groups[0] = &se_nacl->acl_attrib_group; | |
444 | nacl_cg->default_groups[1] = &se_nacl->acl_auth_group; | |
445 | nacl_cg->default_groups[2] = &se_nacl->acl_param_group; | |
12d23384 NB |
446 | nacl_cg->default_groups[3] = &se_nacl->acl_fabric_stat_group; |
447 | nacl_cg->default_groups[4] = NULL; | |
c66ac9db NB |
448 | |
449 | config_group_init_type_name(&se_nacl->acl_group, name, | |
968ebe75 | 450 | &tf->tf_tpg_nacl_base_cit); |
c66ac9db | 451 | config_group_init_type_name(&se_nacl->acl_attrib_group, "attrib", |
968ebe75 | 452 | &tf->tf_tpg_nacl_attrib_cit); |
c66ac9db | 453 | config_group_init_type_name(&se_nacl->acl_auth_group, "auth", |
968ebe75 | 454 | &tf->tf_tpg_nacl_auth_cit); |
c66ac9db | 455 | config_group_init_type_name(&se_nacl->acl_param_group, "param", |
968ebe75 | 456 | &tf->tf_tpg_nacl_param_cit); |
12d23384 | 457 | config_group_init_type_name(&se_nacl->acl_fabric_stat_group, |
968ebe75 | 458 | "fabric_statistics", &tf->tf_tpg_nacl_stat_cit); |
c66ac9db NB |
459 | |
460 | return &se_nacl->acl_group; | |
461 | } | |
462 | ||
463 | static void target_fabric_drop_nodeacl( | |
464 | struct config_group *group, | |
465 | struct config_item *item) | |
466 | { | |
c66ac9db NB |
467 | struct se_node_acl *se_nacl = container_of(to_config_group(item), |
468 | struct se_node_acl, acl_group); | |
469 | struct config_item *df_item; | |
470 | struct config_group *nacl_cg; | |
471 | int i; | |
472 | ||
473 | nacl_cg = &se_nacl->acl_group; | |
474 | for (i = 0; nacl_cg->default_groups[i]; i++) { | |
475 | df_item = &nacl_cg->default_groups[i]->cg_item; | |
476 | nacl_cg->default_groups[i] = NULL; | |
477 | config_item_put(df_item); | |
478 | } | |
1f6fe7cb NB |
479 | /* |
480 | * struct se_node_acl free is done in target_fabric_nacl_base_release() | |
481 | */ | |
c66ac9db | 482 | config_item_put(item); |
c66ac9db NB |
483 | } |
484 | ||
485 | static struct configfs_group_operations target_fabric_nacl_group_ops = { | |
486 | .make_group = target_fabric_make_nodeacl, | |
487 | .drop_item = target_fabric_drop_nodeacl, | |
488 | }; | |
489 | ||
490 | TF_CIT_SETUP(tpg_nacl, NULL, &target_fabric_nacl_group_ops, NULL); | |
491 | ||
492 | /* End of tfc_tpg_nacl_cit */ | |
493 | ||
494 | /* Start of tfc_tpg_np_base_cit */ | |
495 | ||
1f6fe7cb NB |
496 | static void target_fabric_np_base_release(struct config_item *item) |
497 | { | |
498 | struct se_tpg_np *se_tpg_np = container_of(to_config_group(item), | |
499 | struct se_tpg_np, tpg_np_group); | |
500 | struct se_portal_group *se_tpg = se_tpg_np->tpg_np_parent; | |
501 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
502 | ||
ef0caf8d | 503 | tf->tf_ops->fabric_drop_np(se_tpg_np); |
1f6fe7cb NB |
504 | } |
505 | ||
c66ac9db | 506 | static struct configfs_item_operations target_fabric_np_base_item_ops = { |
1f6fe7cb | 507 | .release = target_fabric_np_base_release, |
c66ac9db NB |
508 | }; |
509 | ||
9ac8928e | 510 | TF_CIT_SETUP_DRV(tpg_np_base, &target_fabric_np_base_item_ops, NULL); |
c66ac9db NB |
511 | |
512 | /* End of tfc_tpg_np_base_cit */ | |
513 | ||
514 | /* Start of tfc_tpg_np_cit */ | |
515 | ||
516 | static struct config_group *target_fabric_make_np( | |
517 | struct config_group *group, | |
518 | const char *name) | |
519 | { | |
520 | struct se_portal_group *se_tpg = container_of(group, | |
521 | struct se_portal_group, tpg_np_group); | |
522 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
523 | struct se_tpg_np *se_tpg_np; | |
524 | ||
ef0caf8d | 525 | if (!tf->tf_ops->fabric_make_np) { |
6708bb27 | 526 | pr_err("tf->tf_ops.fabric_make_np is NULL\n"); |
c66ac9db NB |
527 | return ERR_PTR(-ENOSYS); |
528 | } | |
529 | ||
ef0caf8d | 530 | se_tpg_np = tf->tf_ops->fabric_make_np(se_tpg, group, name); |
6708bb27 | 531 | if (!se_tpg_np || IS_ERR(se_tpg_np)) |
c66ac9db NB |
532 | return ERR_PTR(-EINVAL); |
533 | ||
1f6fe7cb | 534 | se_tpg_np->tpg_np_parent = se_tpg; |
c66ac9db | 535 | config_group_init_type_name(&se_tpg_np->tpg_np_group, name, |
968ebe75 | 536 | &tf->tf_tpg_np_base_cit); |
c66ac9db NB |
537 | |
538 | return &se_tpg_np->tpg_np_group; | |
539 | } | |
540 | ||
541 | static void target_fabric_drop_np( | |
542 | struct config_group *group, | |
543 | struct config_item *item) | |
544 | { | |
1f6fe7cb NB |
545 | /* |
546 | * struct se_tpg_np is released via target_fabric_np_base_release() | |
547 | */ | |
c66ac9db | 548 | config_item_put(item); |
c66ac9db NB |
549 | } |
550 | ||
551 | static struct configfs_group_operations target_fabric_np_group_ops = { | |
552 | .make_group = &target_fabric_make_np, | |
553 | .drop_item = &target_fabric_drop_np, | |
554 | }; | |
555 | ||
556 | TF_CIT_SETUP(tpg_np, NULL, &target_fabric_np_group_ops, NULL); | |
557 | ||
558 | /* End of tfc_tpg_np_cit */ | |
559 | ||
560 | /* Start of tfc_tpg_port_cit */ | |
561 | ||
2eafd729 CH |
562 | static struct se_lun *item_to_lun(struct config_item *item) |
563 | { | |
564 | return container_of(to_config_group(item), struct se_lun, | |
565 | lun_group); | |
566 | } | |
c66ac9db | 567 | |
2eafd729 CH |
568 | static ssize_t target_fabric_port_alua_tg_pt_gp_show(struct config_item *item, |
569 | char *page) | |
c66ac9db | 570 | { |
2eafd729 CH |
571 | struct se_lun *lun = item_to_lun(item); |
572 | ||
adf653f9 | 573 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
574 | return -ENODEV; |
575 | ||
adf653f9 | 576 | return core_alua_show_tg_pt_gp_info(lun, page); |
c66ac9db NB |
577 | } |
578 | ||
2eafd729 CH |
579 | static ssize_t target_fabric_port_alua_tg_pt_gp_store(struct config_item *item, |
580 | const char *page, size_t count) | |
c66ac9db | 581 | { |
2eafd729 CH |
582 | struct se_lun *lun = item_to_lun(item); |
583 | ||
adf653f9 | 584 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
585 | return -ENODEV; |
586 | ||
adf653f9 | 587 | return core_alua_store_tg_pt_gp_info(lun, page, count); |
c66ac9db NB |
588 | } |
589 | ||
2eafd729 CH |
590 | static ssize_t target_fabric_port_alua_tg_pt_offline_show( |
591 | struct config_item *item, char *page) | |
c66ac9db | 592 | { |
2eafd729 CH |
593 | struct se_lun *lun = item_to_lun(item); |
594 | ||
adf653f9 | 595 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
596 | return -ENODEV; |
597 | ||
598 | return core_alua_show_offline_bit(lun, page); | |
599 | } | |
600 | ||
2eafd729 CH |
601 | static ssize_t target_fabric_port_alua_tg_pt_offline_store( |
602 | struct config_item *item, const char *page, size_t count) | |
c66ac9db | 603 | { |
2eafd729 CH |
604 | struct se_lun *lun = item_to_lun(item); |
605 | ||
adf653f9 | 606 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
607 | return -ENODEV; |
608 | ||
609 | return core_alua_store_offline_bit(lun, page, count); | |
610 | } | |
611 | ||
2eafd729 CH |
612 | static ssize_t target_fabric_port_alua_tg_pt_status_show( |
613 | struct config_item *item, char *page) | |
c66ac9db | 614 | { |
2eafd729 CH |
615 | struct se_lun *lun = item_to_lun(item); |
616 | ||
adf653f9 | 617 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
618 | return -ENODEV; |
619 | ||
620 | return core_alua_show_secondary_status(lun, page); | |
621 | } | |
622 | ||
2eafd729 CH |
623 | static ssize_t target_fabric_port_alua_tg_pt_status_store( |
624 | struct config_item *item, const char *page, size_t count) | |
c66ac9db | 625 | { |
2eafd729 CH |
626 | struct se_lun *lun = item_to_lun(item); |
627 | ||
adf653f9 | 628 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
629 | return -ENODEV; |
630 | ||
631 | return core_alua_store_secondary_status(lun, page, count); | |
632 | } | |
633 | ||
2eafd729 CH |
634 | static ssize_t target_fabric_port_alua_tg_pt_write_md_show( |
635 | struct config_item *item, char *page) | |
c66ac9db | 636 | { |
2eafd729 CH |
637 | struct se_lun *lun = item_to_lun(item); |
638 | ||
adf653f9 | 639 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
640 | return -ENODEV; |
641 | ||
642 | return core_alua_show_secondary_write_metadata(lun, page); | |
643 | } | |
644 | ||
2eafd729 CH |
645 | static ssize_t target_fabric_port_alua_tg_pt_write_md_store( |
646 | struct config_item *item, const char *page, size_t count) | |
c66ac9db | 647 | { |
2eafd729 CH |
648 | struct se_lun *lun = item_to_lun(item); |
649 | ||
adf653f9 | 650 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
651 | return -ENODEV; |
652 | ||
653 | return core_alua_store_secondary_write_metadata(lun, page, count); | |
654 | } | |
655 | ||
2eafd729 CH |
656 | CONFIGFS_ATTR(target_fabric_port_, alua_tg_pt_gp); |
657 | CONFIGFS_ATTR(target_fabric_port_, alua_tg_pt_offline); | |
658 | CONFIGFS_ATTR(target_fabric_port_, alua_tg_pt_status); | |
659 | CONFIGFS_ATTR(target_fabric_port_, alua_tg_pt_write_md); | |
c66ac9db NB |
660 | |
661 | static struct configfs_attribute *target_fabric_port_attrs[] = { | |
2eafd729 CH |
662 | &target_fabric_port_attr_alua_tg_pt_gp, |
663 | &target_fabric_port_attr_alua_tg_pt_offline, | |
664 | &target_fabric_port_attr_alua_tg_pt_status, | |
665 | &target_fabric_port_attr_alua_tg_pt_write_md, | |
c66ac9db NB |
666 | NULL, |
667 | }; | |
668 | ||
c66ac9db NB |
669 | static int target_fabric_port_link( |
670 | struct config_item *lun_ci, | |
671 | struct config_item *se_dev_ci) | |
672 | { | |
673 | struct config_item *tpg_ci; | |
c66ac9db NB |
674 | struct se_lun *lun = container_of(to_config_group(lun_ci), |
675 | struct se_lun, lun_group); | |
c66ac9db | 676 | struct se_portal_group *se_tpg; |
0fd97ccf CH |
677 | struct se_device *dev = |
678 | container_of(to_config_group(se_dev_ci), struct se_device, dev_group); | |
c66ac9db NB |
679 | struct target_fabric_configfs *tf; |
680 | int ret; | |
681 | ||
0ff87549 NB |
682 | if (dev->dev_link_magic != SE_DEV_LINK_MAGIC) { |
683 | pr_err("Bad dev->dev_link_magic, not a valid se_dev_ci pointer:" | |
684 | " %p to struct se_device: %p\n", se_dev_ci, dev); | |
685 | return -EFAULT; | |
686 | } | |
687 | ||
faa06ab9 NB |
688 | if (!(dev->dev_flags & DF_CONFIGURED)) { |
689 | pr_err("se_device not configured yet, cannot port link\n"); | |
690 | return -ENODEV; | |
691 | } | |
692 | ||
c66ac9db NB |
693 | tpg_ci = &lun_ci->ci_parent->ci_group->cg_item; |
694 | se_tpg = container_of(to_config_group(tpg_ci), | |
695 | struct se_portal_group, tpg_group); | |
696 | tf = se_tpg->se_tpg_wwn->wwn_tf; | |
697 | ||
698 | if (lun->lun_se_dev != NULL) { | |
6708bb27 | 699 | pr_err("Port Symlink already exists\n"); |
c66ac9db NB |
700 | return -EEXIST; |
701 | } | |
702 | ||
6bb82612 NB |
703 | ret = core_dev_add_lun(se_tpg, dev, lun); |
704 | if (ret) { | |
705 | pr_err("core_dev_add_lun() failed: %d\n", ret); | |
c66ac9db NB |
706 | goto out; |
707 | } | |
708 | ||
ef0caf8d | 709 | if (tf->tf_ops->fabric_post_link) { |
c66ac9db NB |
710 | /* |
711 | * Call the optional fabric_post_link() to allow a | |
712 | * fabric module to setup any additional state once | |
713 | * core_dev_add_lun() has been called.. | |
714 | */ | |
ef0caf8d | 715 | tf->tf_ops->fabric_post_link(se_tpg, lun); |
c66ac9db NB |
716 | } |
717 | ||
718 | return 0; | |
719 | out: | |
720 | return ret; | |
721 | } | |
722 | ||
723 | static int target_fabric_port_unlink( | |
724 | struct config_item *lun_ci, | |
725 | struct config_item *se_dev_ci) | |
726 | { | |
727 | struct se_lun *lun = container_of(to_config_group(lun_ci), | |
728 | struct se_lun, lun_group); | |
adf653f9 | 729 | struct se_portal_group *se_tpg = lun->lun_tpg; |
c66ac9db NB |
730 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; |
731 | ||
ef0caf8d | 732 | if (tf->tf_ops->fabric_pre_unlink) { |
c66ac9db NB |
733 | /* |
734 | * Call the optional fabric_pre_unlink() to allow a | |
735 | * fabric module to release any additional stat before | |
736 | * core_dev_del_lun() is called. | |
737 | */ | |
ef0caf8d | 738 | tf->tf_ops->fabric_pre_unlink(se_tpg, lun); |
c66ac9db NB |
739 | } |
740 | ||
cd9d7cba | 741 | core_dev_del_lun(se_tpg, lun); |
c66ac9db NB |
742 | return 0; |
743 | } | |
744 | ||
6bb82612 NB |
745 | static void target_fabric_port_release(struct config_item *item) |
746 | { | |
747 | struct se_lun *lun = container_of(to_config_group(item), | |
748 | struct se_lun, lun_group); | |
749 | ||
750 | kfree_rcu(lun, rcu_head); | |
751 | } | |
752 | ||
c66ac9db | 753 | static struct configfs_item_operations target_fabric_port_item_ops = { |
6bb82612 | 754 | .release = target_fabric_port_release, |
c66ac9db NB |
755 | .allow_link = target_fabric_port_link, |
756 | .drop_link = target_fabric_port_unlink, | |
757 | }; | |
758 | ||
759 | TF_CIT_SETUP(tpg_port, &target_fabric_port_item_ops, NULL, target_fabric_port_attrs); | |
760 | ||
761 | /* End of tfc_tpg_port_cit */ | |
762 | ||
12d23384 NB |
763 | /* Start of tfc_tpg_port_stat_cit */ |
764 | ||
765 | static struct config_group *target_core_port_stat_mkdir( | |
766 | struct config_group *group, | |
767 | const char *name) | |
768 | { | |
769 | return ERR_PTR(-ENOSYS); | |
770 | } | |
771 | ||
772 | static void target_core_port_stat_rmdir( | |
773 | struct config_group *group, | |
774 | struct config_item *item) | |
775 | { | |
776 | return; | |
777 | } | |
778 | ||
779 | static struct configfs_group_operations target_fabric_port_stat_group_ops = { | |
780 | .make_group = target_core_port_stat_mkdir, | |
781 | .drop_item = target_core_port_stat_rmdir, | |
782 | }; | |
783 | ||
784 | TF_CIT_SETUP(tpg_port_stat, NULL, &target_fabric_port_stat_group_ops, NULL); | |
785 | ||
786 | /* End of tfc_tpg_port_stat_cit */ | |
787 | ||
c66ac9db NB |
788 | /* Start of tfc_tpg_lun_cit */ |
789 | ||
790 | static struct config_group *target_fabric_make_lun( | |
791 | struct config_group *group, | |
792 | const char *name) | |
793 | { | |
794 | struct se_lun *lun; | |
795 | struct se_portal_group *se_tpg = container_of(group, | |
796 | struct se_portal_group, tpg_lun_group); | |
797 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
12d23384 | 798 | struct config_group *lun_cg = NULL, *port_stat_grp = NULL; |
f2d30680 | 799 | unsigned long long unpacked_lun; |
12d23384 | 800 | int errno; |
c66ac9db NB |
801 | |
802 | if (strstr(name, "lun_") != name) { | |
6708bb27 | 803 | pr_err("Unable to locate \'_\" in" |
c66ac9db NB |
804 | " \"lun_$LUN_NUMBER\"\n"); |
805 | return ERR_PTR(-EINVAL); | |
806 | } | |
f2d30680 | 807 | errno = kstrtoull(name + 4, 0, &unpacked_lun); |
57103d7f JH |
808 | if (errno) |
809 | return ERR_PTR(errno); | |
c66ac9db | 810 | |
6bb82612 NB |
811 | lun = core_tpg_alloc_lun(se_tpg, unpacked_lun); |
812 | if (IS_ERR(lun)) | |
813 | return ERR_CAST(lun); | |
c66ac9db | 814 | |
12d23384 | 815 | lun_cg = &lun->lun_group; |
13f6a914 | 816 | lun_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, |
12d23384 NB |
817 | GFP_KERNEL); |
818 | if (!lun_cg->default_groups) { | |
6708bb27 | 819 | pr_err("Unable to allocate lun_cg->default_groups\n"); |
6bb82612 | 820 | kfree(lun); |
12d23384 NB |
821 | return ERR_PTR(-ENOMEM); |
822 | } | |
823 | ||
c66ac9db | 824 | config_group_init_type_name(&lun->lun_group, name, |
968ebe75 | 825 | &tf->tf_tpg_port_cit); |
12d23384 | 826 | config_group_init_type_name(&lun->port_stat_grps.stat_group, |
968ebe75 | 827 | "statistics", &tf->tf_tpg_port_stat_cit); |
12d23384 NB |
828 | lun_cg->default_groups[0] = &lun->port_stat_grps.stat_group; |
829 | lun_cg->default_groups[1] = NULL; | |
830 | ||
e3d6f909 | 831 | port_stat_grp = &lun->port_stat_grps.stat_group; |
ab6dae82 | 832 | port_stat_grp->default_groups = kzalloc(sizeof(struct config_group *) * 4, |
12d23384 NB |
833 | GFP_KERNEL); |
834 | if (!port_stat_grp->default_groups) { | |
6708bb27 | 835 | pr_err("Unable to allocate port_stat_grp->default_groups\n"); |
1481473b | 836 | kfree(lun_cg->default_groups); |
6bb82612 | 837 | kfree(lun); |
1481473b | 838 | return ERR_PTR(-ENOMEM); |
12d23384 NB |
839 | } |
840 | target_stat_setup_port_default_groups(lun); | |
c66ac9db NB |
841 | |
842 | return &lun->lun_group; | |
843 | } | |
844 | ||
845 | static void target_fabric_drop_lun( | |
846 | struct config_group *group, | |
847 | struct config_item *item) | |
848 | { | |
12d23384 NB |
849 | struct se_lun *lun = container_of(to_config_group(item), |
850 | struct se_lun, lun_group); | |
851 | struct config_item *df_item; | |
852 | struct config_group *lun_cg, *port_stat_grp; | |
853 | int i; | |
854 | ||
e3d6f909 | 855 | port_stat_grp = &lun->port_stat_grps.stat_group; |
12d23384 NB |
856 | for (i = 0; port_stat_grp->default_groups[i]; i++) { |
857 | df_item = &port_stat_grp->default_groups[i]->cg_item; | |
858 | port_stat_grp->default_groups[i] = NULL; | |
859 | config_item_put(df_item); | |
860 | } | |
861 | kfree(port_stat_grp->default_groups); | |
862 | ||
863 | lun_cg = &lun->lun_group; | |
864 | for (i = 0; lun_cg->default_groups[i]; i++) { | |
865 | df_item = &lun_cg->default_groups[i]->cg_item; | |
866 | lun_cg->default_groups[i] = NULL; | |
867 | config_item_put(df_item); | |
868 | } | |
869 | kfree(lun_cg->default_groups); | |
870 | ||
c66ac9db NB |
871 | config_item_put(item); |
872 | } | |
873 | ||
874 | static struct configfs_group_operations target_fabric_lun_group_ops = { | |
875 | .make_group = &target_fabric_make_lun, | |
876 | .drop_item = &target_fabric_drop_lun, | |
877 | }; | |
878 | ||
879 | TF_CIT_SETUP(tpg_lun, NULL, &target_fabric_lun_group_ops, NULL); | |
880 | ||
881 | /* End of tfc_tpg_lun_cit */ | |
882 | ||
2eafd729 CH |
883 | TF_CIT_SETUP_DRV(tpg_attrib, NULL, NULL); |
884 | TF_CIT_SETUP_DRV(tpg_auth, NULL, NULL); | |
885 | TF_CIT_SETUP_DRV(tpg_param, NULL, NULL); | |
c66ac9db NB |
886 | |
887 | /* Start of tfc_tpg_base_cit */ | |
c66ac9db | 888 | |
1f6fe7cb NB |
889 | static void target_fabric_tpg_release(struct config_item *item) |
890 | { | |
891 | struct se_portal_group *se_tpg = container_of(to_config_group(item), | |
892 | struct se_portal_group, tpg_group); | |
893 | struct se_wwn *wwn = se_tpg->se_tpg_wwn; | |
894 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
895 | ||
ef0caf8d | 896 | tf->tf_ops->fabric_drop_tpg(se_tpg); |
1f6fe7cb NB |
897 | } |
898 | ||
c66ac9db | 899 | static struct configfs_item_operations target_fabric_tpg_base_item_ops = { |
1f6fe7cb | 900 | .release = target_fabric_tpg_release, |
c66ac9db NB |
901 | }; |
902 | ||
9ac8928e | 903 | TF_CIT_SETUP_DRV(tpg_base, &target_fabric_tpg_base_item_ops, NULL); |
c66ac9db NB |
904 | |
905 | /* End of tfc_tpg_base_cit */ | |
906 | ||
907 | /* Start of tfc_tpg_cit */ | |
908 | ||
909 | static struct config_group *target_fabric_make_tpg( | |
910 | struct config_group *group, | |
911 | const char *name) | |
912 | { | |
913 | struct se_wwn *wwn = container_of(group, struct se_wwn, wwn_group); | |
914 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
915 | struct se_portal_group *se_tpg; | |
916 | ||
ef0caf8d CH |
917 | if (!tf->tf_ops->fabric_make_tpg) { |
918 | pr_err("tf->tf_ops->fabric_make_tpg is NULL\n"); | |
c66ac9db NB |
919 | return ERR_PTR(-ENOSYS); |
920 | } | |
921 | ||
ef0caf8d | 922 | se_tpg = tf->tf_ops->fabric_make_tpg(wwn, group, name); |
6708bb27 | 923 | if (!se_tpg || IS_ERR(se_tpg)) |
c66ac9db NB |
924 | return ERR_PTR(-EINVAL); |
925 | /* | |
926 | * Setup default groups from pre-allocated se_tpg->tpg_default_groups | |
927 | */ | |
928 | se_tpg->tpg_group.default_groups = se_tpg->tpg_default_groups; | |
929 | se_tpg->tpg_group.default_groups[0] = &se_tpg->tpg_lun_group; | |
930 | se_tpg->tpg_group.default_groups[1] = &se_tpg->tpg_np_group; | |
931 | se_tpg->tpg_group.default_groups[2] = &se_tpg->tpg_acl_group; | |
932 | se_tpg->tpg_group.default_groups[3] = &se_tpg->tpg_attrib_group; | |
e4b512e7 NB |
933 | se_tpg->tpg_group.default_groups[4] = &se_tpg->tpg_auth_group; |
934 | se_tpg->tpg_group.default_groups[5] = &se_tpg->tpg_param_group; | |
935 | se_tpg->tpg_group.default_groups[6] = NULL; | |
c66ac9db NB |
936 | |
937 | config_group_init_type_name(&se_tpg->tpg_group, name, | |
968ebe75 | 938 | &tf->tf_tpg_base_cit); |
c66ac9db | 939 | config_group_init_type_name(&se_tpg->tpg_lun_group, "lun", |
968ebe75 | 940 | &tf->tf_tpg_lun_cit); |
c66ac9db | 941 | config_group_init_type_name(&se_tpg->tpg_np_group, "np", |
968ebe75 | 942 | &tf->tf_tpg_np_cit); |
c66ac9db | 943 | config_group_init_type_name(&se_tpg->tpg_acl_group, "acls", |
968ebe75 | 944 | &tf->tf_tpg_nacl_cit); |
c66ac9db | 945 | config_group_init_type_name(&se_tpg->tpg_attrib_group, "attrib", |
968ebe75 | 946 | &tf->tf_tpg_attrib_cit); |
e4b512e7 | 947 | config_group_init_type_name(&se_tpg->tpg_auth_group, "auth", |
968ebe75 | 948 | &tf->tf_tpg_auth_cit); |
c66ac9db | 949 | config_group_init_type_name(&se_tpg->tpg_param_group, "param", |
968ebe75 | 950 | &tf->tf_tpg_param_cit); |
c66ac9db NB |
951 | |
952 | return &se_tpg->tpg_group; | |
953 | } | |
954 | ||
955 | static void target_fabric_drop_tpg( | |
956 | struct config_group *group, | |
957 | struct config_item *item) | |
958 | { | |
c66ac9db NB |
959 | struct se_portal_group *se_tpg = container_of(to_config_group(item), |
960 | struct se_portal_group, tpg_group); | |
961 | struct config_group *tpg_cg = &se_tpg->tpg_group; | |
962 | struct config_item *df_item; | |
963 | int i; | |
964 | /* | |
965 | * Release default groups, but do not release tpg_cg->default_groups | |
966 | * memory as it is statically allocated at se_tpg->tpg_default_groups. | |
967 | */ | |
968 | for (i = 0; tpg_cg->default_groups[i]; i++) { | |
969 | df_item = &tpg_cg->default_groups[i]->cg_item; | |
970 | tpg_cg->default_groups[i] = NULL; | |
971 | config_item_put(df_item); | |
972 | } | |
973 | ||
974 | config_item_put(item); | |
c66ac9db NB |
975 | } |
976 | ||
1f6fe7cb NB |
977 | static void target_fabric_release_wwn(struct config_item *item) |
978 | { | |
979 | struct se_wwn *wwn = container_of(to_config_group(item), | |
980 | struct se_wwn, wwn_group); | |
981 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
982 | ||
ef0caf8d | 983 | tf->tf_ops->fabric_drop_wwn(wwn); |
1f6fe7cb NB |
984 | } |
985 | ||
986 | static struct configfs_item_operations target_fabric_tpg_item_ops = { | |
987 | .release = target_fabric_release_wwn, | |
988 | }; | |
989 | ||
c66ac9db NB |
990 | static struct configfs_group_operations target_fabric_tpg_group_ops = { |
991 | .make_group = target_fabric_make_tpg, | |
992 | .drop_item = target_fabric_drop_tpg, | |
993 | }; | |
994 | ||
1f6fe7cb NB |
995 | TF_CIT_SETUP(tpg, &target_fabric_tpg_item_ops, &target_fabric_tpg_group_ops, |
996 | NULL); | |
c66ac9db NB |
997 | |
998 | /* End of tfc_tpg_cit */ | |
999 | ||
12d23384 NB |
1000 | /* Start of tfc_wwn_fabric_stats_cit */ |
1001 | /* | |
1002 | * This is used as a placeholder for struct se_wwn->fabric_stat_group | |
1003 | * to allow fabrics access to ->fabric_stat_group->default_groups[] | |
1004 | */ | |
1005 | TF_CIT_SETUP(wwn_fabric_stats, NULL, NULL, NULL); | |
1006 | ||
1007 | /* End of tfc_wwn_fabric_stats_cit */ | |
1008 | ||
c66ac9db NB |
1009 | /* Start of tfc_wwn_cit */ |
1010 | ||
1011 | static struct config_group *target_fabric_make_wwn( | |
1012 | struct config_group *group, | |
1013 | const char *name) | |
1014 | { | |
1015 | struct target_fabric_configfs *tf = container_of(group, | |
1016 | struct target_fabric_configfs, tf_group); | |
1017 | struct se_wwn *wwn; | |
1018 | ||
ef0caf8d | 1019 | if (!tf->tf_ops->fabric_make_wwn) { |
6708bb27 | 1020 | pr_err("tf->tf_ops.fabric_make_wwn is NULL\n"); |
c66ac9db NB |
1021 | return ERR_PTR(-ENOSYS); |
1022 | } | |
1023 | ||
ef0caf8d | 1024 | wwn = tf->tf_ops->fabric_make_wwn(tf, group, name); |
6708bb27 | 1025 | if (!wwn || IS_ERR(wwn)) |
c66ac9db NB |
1026 | return ERR_PTR(-EINVAL); |
1027 | ||
1028 | wwn->wwn_tf = tf; | |
12d23384 NB |
1029 | /* |
1030 | * Setup default groups from pre-allocated wwn->wwn_default_groups | |
1031 | */ | |
1032 | wwn->wwn_group.default_groups = wwn->wwn_default_groups; | |
1033 | wwn->wwn_group.default_groups[0] = &wwn->fabric_stat_group; | |
1034 | wwn->wwn_group.default_groups[1] = NULL; | |
1035 | ||
968ebe75 | 1036 | config_group_init_type_name(&wwn->wwn_group, name, &tf->tf_tpg_cit); |
12d23384 | 1037 | config_group_init_type_name(&wwn->fabric_stat_group, "fabric_statistics", |
968ebe75 | 1038 | &tf->tf_wwn_fabric_stats_cit); |
c66ac9db NB |
1039 | |
1040 | return &wwn->wwn_group; | |
1041 | } | |
1042 | ||
1043 | static void target_fabric_drop_wwn( | |
1044 | struct config_group *group, | |
1045 | struct config_item *item) | |
1046 | { | |
12d23384 NB |
1047 | struct se_wwn *wwn = container_of(to_config_group(item), |
1048 | struct se_wwn, wwn_group); | |
1049 | struct config_item *df_item; | |
1050 | struct config_group *cg = &wwn->wwn_group; | |
1051 | int i; | |
1052 | ||
1053 | for (i = 0; cg->default_groups[i]; i++) { | |
1054 | df_item = &cg->default_groups[i]->cg_item; | |
1055 | cg->default_groups[i] = NULL; | |
1056 | config_item_put(df_item); | |
1057 | } | |
1058 | ||
c66ac9db | 1059 | config_item_put(item); |
c66ac9db NB |
1060 | } |
1061 | ||
1062 | static struct configfs_group_operations target_fabric_wwn_group_ops = { | |
1063 | .make_group = target_fabric_make_wwn, | |
1064 | .drop_item = target_fabric_drop_wwn, | |
1065 | }; | |
c66ac9db | 1066 | |
2eafd729 CH |
1067 | TF_CIT_SETUP_DRV(wwn, NULL, &target_fabric_wwn_group_ops); |
1068 | TF_CIT_SETUP_DRV(discovery, NULL, NULL); | |
c66ac9db NB |
1069 | |
1070 | int target_fabric_setup_cits(struct target_fabric_configfs *tf) | |
1071 | { | |
1072 | target_fabric_setup_discovery_cit(tf); | |
1073 | target_fabric_setup_wwn_cit(tf); | |
12d23384 | 1074 | target_fabric_setup_wwn_fabric_stats_cit(tf); |
c66ac9db NB |
1075 | target_fabric_setup_tpg_cit(tf); |
1076 | target_fabric_setup_tpg_base_cit(tf); | |
1077 | target_fabric_setup_tpg_port_cit(tf); | |
12d23384 | 1078 | target_fabric_setup_tpg_port_stat_cit(tf); |
c66ac9db NB |
1079 | target_fabric_setup_tpg_lun_cit(tf); |
1080 | target_fabric_setup_tpg_np_cit(tf); | |
1081 | target_fabric_setup_tpg_np_base_cit(tf); | |
1082 | target_fabric_setup_tpg_attrib_cit(tf); | |
e4b512e7 | 1083 | target_fabric_setup_tpg_auth_cit(tf); |
c66ac9db NB |
1084 | target_fabric_setup_tpg_param_cit(tf); |
1085 | target_fabric_setup_tpg_nacl_cit(tf); | |
1086 | target_fabric_setup_tpg_nacl_base_cit(tf); | |
1087 | target_fabric_setup_tpg_nacl_attrib_cit(tf); | |
1088 | target_fabric_setup_tpg_nacl_auth_cit(tf); | |
1089 | target_fabric_setup_tpg_nacl_param_cit(tf); | |
12d23384 | 1090 | target_fabric_setup_tpg_nacl_stat_cit(tf); |
c66ac9db | 1091 | target_fabric_setup_tpg_mappedlun_cit(tf); |
12d23384 | 1092 | target_fabric_setup_tpg_mappedlun_stat_cit(tf); |
c66ac9db NB |
1093 | |
1094 | return 0; | |
1095 | } |