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 NB |
38 | #include <target/target_core_fabric_configfs.h> |
39 | #include <target/target_core_configfs.h> | |
40 | #include <target/configfs_macros.h> | |
41 | ||
e26d99ae | 42 | #include "target_core_internal.h" |
c66ac9db | 43 | #include "target_core_alua.h" |
c66ac9db NB |
44 | #include "target_core_pr.h" |
45 | ||
46 | #define TF_CIT_SETUP(_name, _item_ops, _group_ops, _attrs) \ | |
47 | static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf) \ | |
48 | { \ | |
968ebe75 | 49 | struct config_item_type *cit = &tf->tf_##_name##_cit; \ |
c66ac9db NB |
50 | \ |
51 | cit->ct_item_ops = _item_ops; \ | |
52 | cit->ct_group_ops = _group_ops; \ | |
53 | cit->ct_attrs = _attrs; \ | |
0dc2e8d1 | 54 | cit->ct_owner = tf->tf_ops->module; \ |
6708bb27 | 55 | pr_debug("Setup generic %s\n", __stringify(_name)); \ |
c66ac9db NB |
56 | } |
57 | ||
9ac8928e CH |
58 | #define TF_CIT_SETUP_DRV(_name, _item_ops, _group_ops) \ |
59 | static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf) \ | |
60 | { \ | |
968ebe75 | 61 | struct config_item_type *cit = &tf->tf_##_name##_cit; \ |
ef0caf8d | 62 | struct configfs_attribute **attrs = tf->tf_ops->tfc_##_name##_attrs; \ |
9ac8928e CH |
63 | \ |
64 | cit->ct_item_ops = _item_ops; \ | |
65 | cit->ct_group_ops = _group_ops; \ | |
66 | cit->ct_attrs = attrs; \ | |
0dc2e8d1 | 67 | cit->ct_owner = tf->tf_ops->module; \ |
9ac8928e CH |
68 | pr_debug("Setup generic %s\n", __stringify(_name)); \ |
69 | } | |
70 | ||
c66ac9db NB |
71 | /* Start of tfc_tpg_mappedlun_cit */ |
72 | ||
73 | static int target_fabric_mappedlun_link( | |
74 | struct config_item *lun_acl_ci, | |
75 | struct config_item *lun_ci) | |
76 | { | |
77 | struct se_dev_entry *deve; | |
78 | struct se_lun *lun = container_of(to_config_group(lun_ci), | |
79 | struct se_lun, lun_group); | |
80 | struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci), | |
81 | struct se_lun_acl, se_lun_group); | |
82 | struct se_portal_group *se_tpg; | |
83 | struct config_item *nacl_ci, *tpg_ci, *tpg_ci_s, *wwn_ci, *wwn_ci_s; | |
84 | int ret = 0, lun_access; | |
0ff87549 NB |
85 | |
86 | if (lun->lun_link_magic != SE_LUN_LINK_MAGIC) { | |
87 | pr_err("Bad lun->lun_link_magic, not a valid lun_ci pointer:" | |
88 | " %p to struct lun: %p\n", lun_ci, lun); | |
89 | return -EFAULT; | |
90 | } | |
c66ac9db NB |
91 | /* |
92 | * Ensure that the source port exists | |
93 | */ | |
6708bb27 AG |
94 | if (!lun->lun_sep || !lun->lun_sep->sep_tpg) { |
95 | pr_err("Source se_lun->lun_sep or lun->lun_sep->sep" | |
c66ac9db NB |
96 | "_tpg does not exist\n"); |
97 | return -EINVAL; | |
98 | } | |
99 | se_tpg = lun->lun_sep->sep_tpg; | |
100 | ||
101 | nacl_ci = &lun_acl_ci->ci_parent->ci_group->cg_item; | |
102 | tpg_ci = &nacl_ci->ci_group->cg_item; | |
103 | wwn_ci = &tpg_ci->ci_group->cg_item; | |
104 | tpg_ci_s = &lun_ci->ci_parent->ci_group->cg_item; | |
105 | wwn_ci_s = &tpg_ci_s->ci_group->cg_item; | |
106 | /* | |
107 | * Make sure the SymLink is going to the same $FABRIC/$WWN/tpgt_$TPGT | |
108 | */ | |
109 | if (strcmp(config_item_name(wwn_ci), config_item_name(wwn_ci_s))) { | |
6708bb27 | 110 | pr_err("Illegal Initiator ACL SymLink outside of %s\n", |
c66ac9db NB |
111 | config_item_name(wwn_ci)); |
112 | return -EINVAL; | |
113 | } | |
114 | if (strcmp(config_item_name(tpg_ci), config_item_name(tpg_ci_s))) { | |
6708bb27 | 115 | pr_err("Illegal Initiator ACL Symlink outside of %s" |
c66ac9db NB |
116 | " TPGT: %s\n", config_item_name(wwn_ci), |
117 | config_item_name(tpg_ci)); | |
118 | return -EINVAL; | |
119 | } | |
120 | /* | |
121 | * If this struct se_node_acl was dynamically generated with | |
122 | * tpg_1/attrib/generate_node_acls=1, use the existing deve->lun_flags, | |
123 | * which be will write protected (READ-ONLY) when | |
124 | * tpg_1/attrib/demo_mode_write_protect=1 | |
125 | */ | |
29a05dee NB |
126 | rcu_read_lock(); |
127 | deve = target_nacl_find_deve(lacl->se_lun_nacl, lacl->mapped_lun); | |
128 | if (deve) | |
c66ac9db NB |
129 | lun_access = deve->lun_flags; |
130 | else | |
131 | lun_access = | |
e3d6f909 | 132 | (se_tpg->se_tpg_tfo->tpg_check_prod_mode_write_protect( |
c66ac9db NB |
133 | se_tpg)) ? TRANSPORT_LUNFLAGS_READ_ONLY : |
134 | TRANSPORT_LUNFLAGS_READ_WRITE; | |
29a05dee | 135 | rcu_read_unlock(); |
c66ac9db NB |
136 | /* |
137 | * Determine the actual mapped LUN value user wants.. | |
138 | * | |
139 | * This value is what the SCSI Initiator actually sees the | |
140 | * iscsi/$IQN/$TPGT/lun/lun_* as on their SCSI Initiator Ports. | |
141 | */ | |
142 | ret = core_dev_add_initiator_node_lun_acl(se_tpg, lacl, | |
143 | lun->unpacked_lun, lun_access); | |
144 | ||
145 | return (ret < 0) ? -EINVAL : 0; | |
146 | } | |
147 | ||
148 | static int target_fabric_mappedlun_unlink( | |
149 | struct config_item *lun_acl_ci, | |
150 | struct config_item *lun_ci) | |
151 | { | |
c66ac9db NB |
152 | struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci), |
153 | struct se_lun_acl, se_lun_group); | |
29a05dee NB |
154 | struct se_lun *lun = container_of(to_config_group(lun_ci), |
155 | struct se_lun, lun_group); | |
156 | struct se_portal_group *se_tpg = lun->lun_sep->sep_tpg; | |
c66ac9db | 157 | |
29a05dee | 158 | return core_dev_del_initiator_node_lun_acl(se_tpg, lun, lacl); |
c66ac9db NB |
159 | } |
160 | ||
161 | CONFIGFS_EATTR_STRUCT(target_fabric_mappedlun, se_lun_acl); | |
162 | #define TCM_MAPPEDLUN_ATTR(_name, _mode) \ | |
163 | static struct target_fabric_mappedlun_attribute target_fabric_mappedlun_##_name = \ | |
164 | __CONFIGFS_EATTR(_name, _mode, \ | |
165 | target_fabric_mappedlun_show_##_name, \ | |
166 | target_fabric_mappedlun_store_##_name); | |
167 | ||
168 | static ssize_t target_fabric_mappedlun_show_write_protect( | |
169 | struct se_lun_acl *lacl, | |
170 | char *page) | |
171 | { | |
172 | struct se_node_acl *se_nacl = lacl->se_lun_nacl; | |
173 | struct se_dev_entry *deve; | |
29a05dee NB |
174 | ssize_t len = 0; |
175 | ||
176 | rcu_read_lock(); | |
177 | deve = target_nacl_find_deve(se_nacl, lacl->mapped_lun); | |
178 | if (deve) { | |
179 | len = sprintf(page, "%d\n", | |
180 | (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY) ? 1 : 0); | |
181 | } | |
182 | rcu_read_unlock(); | |
c66ac9db NB |
183 | |
184 | return len; | |
185 | } | |
186 | ||
187 | static ssize_t target_fabric_mappedlun_store_write_protect( | |
188 | struct se_lun_acl *lacl, | |
189 | const char *page, | |
190 | size_t count) | |
191 | { | |
192 | struct se_node_acl *se_nacl = lacl->se_lun_nacl; | |
193 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
194 | unsigned long op; | |
57103d7f | 195 | int ret; |
c66ac9db | 196 | |
57103d7f JH |
197 | ret = kstrtoul(page, 0, &op); |
198 | if (ret) | |
199 | return ret; | |
c66ac9db NB |
200 | |
201 | if ((op != 1) && (op != 0)) | |
202 | return -EINVAL; | |
203 | ||
204 | core_update_device_list_access(lacl->mapped_lun, (op) ? | |
205 | TRANSPORT_LUNFLAGS_READ_ONLY : | |
206 | TRANSPORT_LUNFLAGS_READ_WRITE, | |
207 | lacl->se_lun_nacl); | |
208 | ||
6708bb27 | 209 | pr_debug("%s_ConfigFS: Changed Initiator ACL: %s" |
c66ac9db | 210 | " Mapped LUN: %u Write Protect bit to %s\n", |
e3d6f909 | 211 | se_tpg->se_tpg_tfo->get_fabric_name(), |
c66ac9db NB |
212 | lacl->initiatorname, lacl->mapped_lun, (op) ? "ON" : "OFF"); |
213 | ||
214 | return count; | |
215 | ||
216 | } | |
217 | ||
218 | TCM_MAPPEDLUN_ATTR(write_protect, S_IRUGO | S_IWUSR); | |
219 | ||
220 | CONFIGFS_EATTR_OPS(target_fabric_mappedlun, se_lun_acl, se_lun_group); | |
221 | ||
1f6fe7cb NB |
222 | static void target_fabric_mappedlun_release(struct config_item *item) |
223 | { | |
224 | struct se_lun_acl *lacl = container_of(to_config_group(item), | |
225 | struct se_lun_acl, se_lun_group); | |
226 | struct se_portal_group *se_tpg = lacl->se_lun_nacl->se_tpg; | |
227 | ||
228 | core_dev_free_initiator_node_lun_acl(se_tpg, lacl); | |
229 | } | |
230 | ||
c66ac9db NB |
231 | static struct configfs_attribute *target_fabric_mappedlun_attrs[] = { |
232 | &target_fabric_mappedlun_write_protect.attr, | |
233 | NULL, | |
234 | }; | |
235 | ||
236 | static struct configfs_item_operations target_fabric_mappedlun_item_ops = { | |
1f6fe7cb | 237 | .release = target_fabric_mappedlun_release, |
c66ac9db NB |
238 | .show_attribute = target_fabric_mappedlun_attr_show, |
239 | .store_attribute = target_fabric_mappedlun_attr_store, | |
240 | .allow_link = target_fabric_mappedlun_link, | |
241 | .drop_link = target_fabric_mappedlun_unlink, | |
242 | }; | |
243 | ||
244 | TF_CIT_SETUP(tpg_mappedlun, &target_fabric_mappedlun_item_ops, NULL, | |
245 | target_fabric_mappedlun_attrs); | |
246 | ||
247 | /* End of tfc_tpg_mappedlun_cit */ | |
248 | ||
12d23384 NB |
249 | /* Start of tfc_tpg_mappedlun_port_cit */ |
250 | ||
251 | static struct config_group *target_core_mappedlun_stat_mkdir( | |
252 | struct config_group *group, | |
253 | const char *name) | |
254 | { | |
255 | return ERR_PTR(-ENOSYS); | |
256 | } | |
257 | ||
258 | static void target_core_mappedlun_stat_rmdir( | |
259 | struct config_group *group, | |
260 | struct config_item *item) | |
261 | { | |
262 | return; | |
263 | } | |
264 | ||
265 | static struct configfs_group_operations target_fabric_mappedlun_stat_group_ops = { | |
266 | .make_group = target_core_mappedlun_stat_mkdir, | |
267 | .drop_item = target_core_mappedlun_stat_rmdir, | |
268 | }; | |
269 | ||
270 | TF_CIT_SETUP(tpg_mappedlun_stat, NULL, &target_fabric_mappedlun_stat_group_ops, | |
271 | NULL); | |
272 | ||
273 | /* End of tfc_tpg_mappedlun_port_cit */ | |
274 | ||
c66ac9db NB |
275 | /* Start of tfc_tpg_nacl_attrib_cit */ |
276 | ||
277 | CONFIGFS_EATTR_OPS(target_fabric_nacl_attrib, se_node_acl, acl_attrib_group); | |
278 | ||
279 | static struct configfs_item_operations target_fabric_nacl_attrib_item_ops = { | |
280 | .show_attribute = target_fabric_nacl_attrib_attr_show, | |
281 | .store_attribute = target_fabric_nacl_attrib_attr_store, | |
282 | }; | |
283 | ||
9ac8928e | 284 | TF_CIT_SETUP_DRV(tpg_nacl_attrib, &target_fabric_nacl_attrib_item_ops, NULL); |
c66ac9db NB |
285 | |
286 | /* End of tfc_tpg_nacl_attrib_cit */ | |
287 | ||
288 | /* Start of tfc_tpg_nacl_auth_cit */ | |
289 | ||
290 | CONFIGFS_EATTR_OPS(target_fabric_nacl_auth, se_node_acl, acl_auth_group); | |
291 | ||
292 | static struct configfs_item_operations target_fabric_nacl_auth_item_ops = { | |
293 | .show_attribute = target_fabric_nacl_auth_attr_show, | |
294 | .store_attribute = target_fabric_nacl_auth_attr_store, | |
295 | }; | |
296 | ||
9ac8928e | 297 | TF_CIT_SETUP_DRV(tpg_nacl_auth, &target_fabric_nacl_auth_item_ops, NULL); |
c66ac9db NB |
298 | |
299 | /* End of tfc_tpg_nacl_auth_cit */ | |
300 | ||
301 | /* Start of tfc_tpg_nacl_param_cit */ | |
302 | ||
303 | CONFIGFS_EATTR_OPS(target_fabric_nacl_param, se_node_acl, acl_param_group); | |
304 | ||
305 | static struct configfs_item_operations target_fabric_nacl_param_item_ops = { | |
306 | .show_attribute = target_fabric_nacl_param_attr_show, | |
307 | .store_attribute = target_fabric_nacl_param_attr_store, | |
308 | }; | |
309 | ||
9ac8928e | 310 | TF_CIT_SETUP_DRV(tpg_nacl_param, &target_fabric_nacl_param_item_ops, NULL); |
c66ac9db NB |
311 | |
312 | /* End of tfc_tpg_nacl_param_cit */ | |
313 | ||
314 | /* Start of tfc_tpg_nacl_base_cit */ | |
315 | ||
316 | CONFIGFS_EATTR_OPS(target_fabric_nacl_base, se_node_acl, acl_group); | |
317 | ||
318 | static struct config_group *target_fabric_make_mappedlun( | |
319 | struct config_group *group, | |
320 | const char *name) | |
321 | { | |
322 | struct se_node_acl *se_nacl = container_of(group, | |
323 | struct se_node_acl, acl_group); | |
324 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
325 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
da0abaee | 326 | struct se_lun_acl *lacl = NULL; |
c66ac9db | 327 | struct config_item *acl_ci; |
12d23384 | 328 | struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; |
c66ac9db NB |
329 | char *buf; |
330 | unsigned long mapped_lun; | |
331 | int ret = 0; | |
332 | ||
333 | acl_ci = &group->cg_item; | |
6708bb27 AG |
334 | if (!acl_ci) { |
335 | pr_err("Unable to locatel acl_ci\n"); | |
c66ac9db NB |
336 | return NULL; |
337 | } | |
338 | ||
339 | buf = kzalloc(strlen(name) + 1, GFP_KERNEL); | |
6708bb27 AG |
340 | if (!buf) { |
341 | pr_err("Unable to allocate memory for name buf\n"); | |
c66ac9db NB |
342 | return ERR_PTR(-ENOMEM); |
343 | } | |
344 | snprintf(buf, strlen(name) + 1, "%s", name); | |
345 | /* | |
346 | * Make sure user is creating iscsi/$IQN/$TPGT/acls/$INITIATOR/lun_$ID. | |
347 | */ | |
348 | if (strstr(buf, "lun_") != buf) { | |
6708bb27 | 349 | pr_err("Unable to locate \"lun_\" from buf: %s" |
c66ac9db NB |
350 | " name: %s\n", buf, name); |
351 | ret = -EINVAL; | |
352 | goto out; | |
353 | } | |
354 | /* | |
355 | * Determine the Mapped LUN value. This is what the SCSI Initiator | |
356 | * Port will actually see. | |
357 | */ | |
57103d7f JH |
358 | ret = kstrtoul(buf + 4, 0, &mapped_lun); |
359 | if (ret) | |
360 | goto out; | |
361 | if (mapped_lun > UINT_MAX) { | |
c66ac9db NB |
362 | ret = -EINVAL; |
363 | goto out; | |
364 | } | |
fbbf8555 NB |
365 | if (mapped_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) { |
366 | pr_err("Mapped LUN: %lu exceeds TRANSPORT_MAX_LUNS_PER_TPG" | |
367 | "-1: %u for Target Portal Group: %u\n", mapped_lun, | |
368 | TRANSPORT_MAX_LUNS_PER_TPG-1, | |
369 | se_tpg->se_tpg_tfo->tpg_get_tag(se_tpg)); | |
370 | ret = -EINVAL; | |
371 | goto out; | |
372 | } | |
c66ac9db | 373 | |
fcf29481 NB |
374 | lacl = core_dev_init_initiator_node_lun_acl(se_tpg, se_nacl, |
375 | mapped_lun, &ret); | |
6708bb27 | 376 | if (!lacl) { |
12d23384 | 377 | ret = -EINVAL; |
c66ac9db | 378 | goto out; |
12d23384 NB |
379 | } |
380 | ||
381 | lacl_cg = &lacl->se_lun_group; | |
13f6a914 | 382 | lacl_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, |
12d23384 NB |
383 | GFP_KERNEL); |
384 | if (!lacl_cg->default_groups) { | |
6708bb27 | 385 | pr_err("Unable to allocate lacl_cg->default_groups\n"); |
12d23384 NB |
386 | ret = -ENOMEM; |
387 | goto out; | |
388 | } | |
c66ac9db NB |
389 | |
390 | config_group_init_type_name(&lacl->se_lun_group, name, | |
968ebe75 | 391 | &tf->tf_tpg_mappedlun_cit); |
12d23384 | 392 | config_group_init_type_name(&lacl->ml_stat_grps.stat_group, |
968ebe75 | 393 | "statistics", &tf->tf_tpg_mappedlun_stat_cit); |
12d23384 NB |
394 | lacl_cg->default_groups[0] = &lacl->ml_stat_grps.stat_group; |
395 | lacl_cg->default_groups[1] = NULL; | |
396 | ||
e3d6f909 | 397 | ml_stat_grp = &lacl->ml_stat_grps.stat_group; |
13f6a914 | 398 | ml_stat_grp->default_groups = kmalloc(sizeof(struct config_group *) * 3, |
12d23384 NB |
399 | GFP_KERNEL); |
400 | if (!ml_stat_grp->default_groups) { | |
6708bb27 | 401 | pr_err("Unable to allocate ml_stat_grp->default_groups\n"); |
12d23384 NB |
402 | ret = -ENOMEM; |
403 | goto out; | |
404 | } | |
405 | target_stat_setup_mappedlun_default_groups(lacl); | |
c66ac9db NB |
406 | |
407 | kfree(buf); | |
408 | return &lacl->se_lun_group; | |
409 | out: | |
12d23384 NB |
410 | if (lacl_cg) |
411 | kfree(lacl_cg->default_groups); | |
da0abaee | 412 | kfree(lacl); |
c66ac9db NB |
413 | kfree(buf); |
414 | return ERR_PTR(ret); | |
415 | } | |
416 | ||
417 | static void target_fabric_drop_mappedlun( | |
418 | struct config_group *group, | |
419 | struct config_item *item) | |
420 | { | |
12d23384 NB |
421 | struct se_lun_acl *lacl = container_of(to_config_group(item), |
422 | struct se_lun_acl, se_lun_group); | |
423 | struct config_item *df_item; | |
424 | struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; | |
425 | int i; | |
426 | ||
e3d6f909 | 427 | ml_stat_grp = &lacl->ml_stat_grps.stat_group; |
12d23384 NB |
428 | for (i = 0; ml_stat_grp->default_groups[i]; i++) { |
429 | df_item = &ml_stat_grp->default_groups[i]->cg_item; | |
430 | ml_stat_grp->default_groups[i] = NULL; | |
431 | config_item_put(df_item); | |
432 | } | |
433 | kfree(ml_stat_grp->default_groups); | |
434 | ||
435 | lacl_cg = &lacl->se_lun_group; | |
436 | for (i = 0; lacl_cg->default_groups[i]; i++) { | |
437 | df_item = &lacl_cg->default_groups[i]->cg_item; | |
438 | lacl_cg->default_groups[i] = NULL; | |
439 | config_item_put(df_item); | |
440 | } | |
441 | kfree(lacl_cg->default_groups); | |
442 | ||
c66ac9db | 443 | config_item_put(item); |
1f6fe7cb NB |
444 | } |
445 | ||
446 | static void target_fabric_nacl_base_release(struct config_item *item) | |
447 | { | |
448 | struct se_node_acl *se_nacl = container_of(to_config_group(item), | |
449 | struct se_node_acl, acl_group); | |
c7d6a803 | 450 | struct target_fabric_configfs *tf = se_nacl->se_tpg->se_tpg_wwn->wwn_tf; |
1f6fe7cb | 451 | |
ef0caf8d CH |
452 | if (tf->tf_ops->fabric_cleanup_nodeacl) |
453 | tf->tf_ops->fabric_cleanup_nodeacl(se_nacl); | |
c7d6a803 | 454 | core_tpg_del_initiator_node_acl(se_nacl); |
c66ac9db NB |
455 | } |
456 | ||
457 | static struct configfs_item_operations target_fabric_nacl_base_item_ops = { | |
1f6fe7cb | 458 | .release = target_fabric_nacl_base_release, |
c66ac9db NB |
459 | .show_attribute = target_fabric_nacl_base_attr_show, |
460 | .store_attribute = target_fabric_nacl_base_attr_store, | |
461 | }; | |
462 | ||
463 | static struct configfs_group_operations target_fabric_nacl_base_group_ops = { | |
464 | .make_group = target_fabric_make_mappedlun, | |
465 | .drop_item = target_fabric_drop_mappedlun, | |
466 | }; | |
467 | ||
9ac8928e CH |
468 | TF_CIT_SETUP_DRV(tpg_nacl_base, &target_fabric_nacl_base_item_ops, |
469 | &target_fabric_nacl_base_group_ops); | |
c66ac9db NB |
470 | |
471 | /* End of tfc_tpg_nacl_base_cit */ | |
472 | ||
12d23384 NB |
473 | /* Start of tfc_node_fabric_stats_cit */ |
474 | /* | |
475 | * This is used as a placeholder for struct se_node_acl->acl_fabric_stat_group | |
476 | * to allow fabrics access to ->acl_fabric_stat_group->default_groups[] | |
477 | */ | |
478 | TF_CIT_SETUP(tpg_nacl_stat, NULL, NULL, NULL); | |
479 | ||
480 | /* End of tfc_wwn_fabric_stats_cit */ | |
481 | ||
c66ac9db NB |
482 | /* Start of tfc_tpg_nacl_cit */ |
483 | ||
484 | static struct config_group *target_fabric_make_nodeacl( | |
485 | struct config_group *group, | |
486 | const char *name) | |
487 | { | |
488 | struct se_portal_group *se_tpg = container_of(group, | |
489 | struct se_portal_group, tpg_acl_group); | |
490 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
491 | struct se_node_acl *se_nacl; | |
492 | struct config_group *nacl_cg; | |
493 | ||
c7d6a803 | 494 | se_nacl = core_tpg_add_initiator_node_acl(se_tpg, name); |
c66ac9db | 495 | if (IS_ERR(se_nacl)) |
e1750ba2 | 496 | return ERR_CAST(se_nacl); |
c66ac9db | 497 | |
ef0caf8d CH |
498 | if (tf->tf_ops->fabric_init_nodeacl) { |
499 | int ret = tf->tf_ops->fabric_init_nodeacl(se_nacl, name); | |
c7d6a803 CH |
500 | if (ret) { |
501 | core_tpg_del_initiator_node_acl(se_nacl); | |
502 | return ERR_PTR(ret); | |
503 | } | |
504 | } | |
505 | ||
c66ac9db NB |
506 | nacl_cg = &se_nacl->acl_group; |
507 | nacl_cg->default_groups = se_nacl->acl_default_groups; | |
508 | nacl_cg->default_groups[0] = &se_nacl->acl_attrib_group; | |
509 | nacl_cg->default_groups[1] = &se_nacl->acl_auth_group; | |
510 | nacl_cg->default_groups[2] = &se_nacl->acl_param_group; | |
12d23384 NB |
511 | nacl_cg->default_groups[3] = &se_nacl->acl_fabric_stat_group; |
512 | nacl_cg->default_groups[4] = NULL; | |
c66ac9db NB |
513 | |
514 | config_group_init_type_name(&se_nacl->acl_group, name, | |
968ebe75 | 515 | &tf->tf_tpg_nacl_base_cit); |
c66ac9db | 516 | config_group_init_type_name(&se_nacl->acl_attrib_group, "attrib", |
968ebe75 | 517 | &tf->tf_tpg_nacl_attrib_cit); |
c66ac9db | 518 | config_group_init_type_name(&se_nacl->acl_auth_group, "auth", |
968ebe75 | 519 | &tf->tf_tpg_nacl_auth_cit); |
c66ac9db | 520 | config_group_init_type_name(&se_nacl->acl_param_group, "param", |
968ebe75 | 521 | &tf->tf_tpg_nacl_param_cit); |
12d23384 | 522 | config_group_init_type_name(&se_nacl->acl_fabric_stat_group, |
968ebe75 | 523 | "fabric_statistics", &tf->tf_tpg_nacl_stat_cit); |
c66ac9db NB |
524 | |
525 | return &se_nacl->acl_group; | |
526 | } | |
527 | ||
528 | static void target_fabric_drop_nodeacl( | |
529 | struct config_group *group, | |
530 | struct config_item *item) | |
531 | { | |
c66ac9db NB |
532 | struct se_node_acl *se_nacl = container_of(to_config_group(item), |
533 | struct se_node_acl, acl_group); | |
534 | struct config_item *df_item; | |
535 | struct config_group *nacl_cg; | |
536 | int i; | |
537 | ||
538 | nacl_cg = &se_nacl->acl_group; | |
539 | for (i = 0; nacl_cg->default_groups[i]; i++) { | |
540 | df_item = &nacl_cg->default_groups[i]->cg_item; | |
541 | nacl_cg->default_groups[i] = NULL; | |
542 | config_item_put(df_item); | |
543 | } | |
1f6fe7cb NB |
544 | /* |
545 | * struct se_node_acl free is done in target_fabric_nacl_base_release() | |
546 | */ | |
c66ac9db | 547 | config_item_put(item); |
c66ac9db NB |
548 | } |
549 | ||
550 | static struct configfs_group_operations target_fabric_nacl_group_ops = { | |
551 | .make_group = target_fabric_make_nodeacl, | |
552 | .drop_item = target_fabric_drop_nodeacl, | |
553 | }; | |
554 | ||
555 | TF_CIT_SETUP(tpg_nacl, NULL, &target_fabric_nacl_group_ops, NULL); | |
556 | ||
557 | /* End of tfc_tpg_nacl_cit */ | |
558 | ||
559 | /* Start of tfc_tpg_np_base_cit */ | |
560 | ||
561 | CONFIGFS_EATTR_OPS(target_fabric_np_base, se_tpg_np, tpg_np_group); | |
562 | ||
1f6fe7cb NB |
563 | static void target_fabric_np_base_release(struct config_item *item) |
564 | { | |
565 | struct se_tpg_np *se_tpg_np = container_of(to_config_group(item), | |
566 | struct se_tpg_np, tpg_np_group); | |
567 | struct se_portal_group *se_tpg = se_tpg_np->tpg_np_parent; | |
568 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
569 | ||
ef0caf8d | 570 | tf->tf_ops->fabric_drop_np(se_tpg_np); |
1f6fe7cb NB |
571 | } |
572 | ||
c66ac9db | 573 | static struct configfs_item_operations target_fabric_np_base_item_ops = { |
1f6fe7cb | 574 | .release = target_fabric_np_base_release, |
c66ac9db NB |
575 | .show_attribute = target_fabric_np_base_attr_show, |
576 | .store_attribute = target_fabric_np_base_attr_store, | |
577 | }; | |
578 | ||
9ac8928e | 579 | TF_CIT_SETUP_DRV(tpg_np_base, &target_fabric_np_base_item_ops, NULL); |
c66ac9db NB |
580 | |
581 | /* End of tfc_tpg_np_base_cit */ | |
582 | ||
583 | /* Start of tfc_tpg_np_cit */ | |
584 | ||
585 | static struct config_group *target_fabric_make_np( | |
586 | struct config_group *group, | |
587 | const char *name) | |
588 | { | |
589 | struct se_portal_group *se_tpg = container_of(group, | |
590 | struct se_portal_group, tpg_np_group); | |
591 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
592 | struct se_tpg_np *se_tpg_np; | |
593 | ||
ef0caf8d | 594 | if (!tf->tf_ops->fabric_make_np) { |
6708bb27 | 595 | pr_err("tf->tf_ops.fabric_make_np is NULL\n"); |
c66ac9db NB |
596 | return ERR_PTR(-ENOSYS); |
597 | } | |
598 | ||
ef0caf8d | 599 | se_tpg_np = tf->tf_ops->fabric_make_np(se_tpg, group, name); |
6708bb27 | 600 | if (!se_tpg_np || IS_ERR(se_tpg_np)) |
c66ac9db NB |
601 | return ERR_PTR(-EINVAL); |
602 | ||
1f6fe7cb | 603 | se_tpg_np->tpg_np_parent = se_tpg; |
c66ac9db | 604 | config_group_init_type_name(&se_tpg_np->tpg_np_group, name, |
968ebe75 | 605 | &tf->tf_tpg_np_base_cit); |
c66ac9db NB |
606 | |
607 | return &se_tpg_np->tpg_np_group; | |
608 | } | |
609 | ||
610 | static void target_fabric_drop_np( | |
611 | struct config_group *group, | |
612 | struct config_item *item) | |
613 | { | |
1f6fe7cb NB |
614 | /* |
615 | * struct se_tpg_np is released via target_fabric_np_base_release() | |
616 | */ | |
c66ac9db | 617 | config_item_put(item); |
c66ac9db NB |
618 | } |
619 | ||
620 | static struct configfs_group_operations target_fabric_np_group_ops = { | |
621 | .make_group = &target_fabric_make_np, | |
622 | .drop_item = &target_fabric_drop_np, | |
623 | }; | |
624 | ||
625 | TF_CIT_SETUP(tpg_np, NULL, &target_fabric_np_group_ops, NULL); | |
626 | ||
627 | /* End of tfc_tpg_np_cit */ | |
628 | ||
629 | /* Start of tfc_tpg_port_cit */ | |
630 | ||
631 | CONFIGFS_EATTR_STRUCT(target_fabric_port, se_lun); | |
632 | #define TCM_PORT_ATTR(_name, _mode) \ | |
633 | static struct target_fabric_port_attribute target_fabric_port_##_name = \ | |
634 | __CONFIGFS_EATTR(_name, _mode, \ | |
635 | target_fabric_port_show_attr_##_name, \ | |
636 | target_fabric_port_store_attr_##_name); | |
637 | ||
638 | #define TCM_PORT_ATTOR_RO(_name) \ | |
639 | __CONFIGFS_EATTR_RO(_name, \ | |
640 | target_fabric_port_show_attr_##_name); | |
641 | ||
642 | /* | |
643 | * alua_tg_pt_gp | |
644 | */ | |
645 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_gp( | |
646 | struct se_lun *lun, | |
647 | char *page) | |
648 | { | |
6708bb27 | 649 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
650 | return -ENODEV; |
651 | ||
652 | return core_alua_show_tg_pt_gp_info(lun->lun_sep, page); | |
653 | } | |
654 | ||
655 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_gp( | |
656 | struct se_lun *lun, | |
657 | const char *page, | |
658 | size_t count) | |
659 | { | |
6708bb27 | 660 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
661 | return -ENODEV; |
662 | ||
663 | return core_alua_store_tg_pt_gp_info(lun->lun_sep, page, count); | |
664 | } | |
665 | ||
666 | TCM_PORT_ATTR(alua_tg_pt_gp, S_IRUGO | S_IWUSR); | |
667 | ||
668 | /* | |
669 | * alua_tg_pt_offline | |
670 | */ | |
671 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_offline( | |
672 | struct se_lun *lun, | |
673 | char *page) | |
674 | { | |
6708bb27 | 675 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
676 | return -ENODEV; |
677 | ||
678 | return core_alua_show_offline_bit(lun, page); | |
679 | } | |
680 | ||
681 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_offline( | |
682 | struct se_lun *lun, | |
683 | const char *page, | |
684 | size_t count) | |
685 | { | |
6708bb27 | 686 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
687 | return -ENODEV; |
688 | ||
689 | return core_alua_store_offline_bit(lun, page, count); | |
690 | } | |
691 | ||
692 | TCM_PORT_ATTR(alua_tg_pt_offline, S_IRUGO | S_IWUSR); | |
693 | ||
694 | /* | |
695 | * alua_tg_pt_status | |
696 | */ | |
697 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_status( | |
698 | struct se_lun *lun, | |
699 | char *page) | |
700 | { | |
6708bb27 | 701 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
702 | return -ENODEV; |
703 | ||
704 | return core_alua_show_secondary_status(lun, page); | |
705 | } | |
706 | ||
707 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_status( | |
708 | struct se_lun *lun, | |
709 | const char *page, | |
710 | size_t count) | |
711 | { | |
6708bb27 | 712 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
713 | return -ENODEV; |
714 | ||
715 | return core_alua_store_secondary_status(lun, page, count); | |
716 | } | |
717 | ||
718 | TCM_PORT_ATTR(alua_tg_pt_status, S_IRUGO | S_IWUSR); | |
719 | ||
720 | /* | |
721 | * alua_tg_pt_write_md | |
722 | */ | |
723 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_write_md( | |
724 | struct se_lun *lun, | |
725 | char *page) | |
726 | { | |
6708bb27 | 727 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
728 | return -ENODEV; |
729 | ||
730 | return core_alua_show_secondary_write_metadata(lun, page); | |
731 | } | |
732 | ||
733 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_write_md( | |
734 | struct se_lun *lun, | |
735 | const char *page, | |
736 | size_t count) | |
737 | { | |
6708bb27 | 738 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
739 | return -ENODEV; |
740 | ||
741 | return core_alua_store_secondary_write_metadata(lun, page, count); | |
742 | } | |
743 | ||
744 | TCM_PORT_ATTR(alua_tg_pt_write_md, S_IRUGO | S_IWUSR); | |
745 | ||
746 | ||
747 | static struct configfs_attribute *target_fabric_port_attrs[] = { | |
748 | &target_fabric_port_alua_tg_pt_gp.attr, | |
749 | &target_fabric_port_alua_tg_pt_offline.attr, | |
750 | &target_fabric_port_alua_tg_pt_status.attr, | |
751 | &target_fabric_port_alua_tg_pt_write_md.attr, | |
752 | NULL, | |
753 | }; | |
754 | ||
755 | CONFIGFS_EATTR_OPS(target_fabric_port, se_lun, lun_group); | |
756 | ||
757 | static int target_fabric_port_link( | |
758 | struct config_item *lun_ci, | |
759 | struct config_item *se_dev_ci) | |
760 | { | |
761 | struct config_item *tpg_ci; | |
c66ac9db NB |
762 | struct se_lun *lun = container_of(to_config_group(lun_ci), |
763 | struct se_lun, lun_group); | |
764 | struct se_lun *lun_p; | |
765 | struct se_portal_group *se_tpg; | |
0fd97ccf CH |
766 | struct se_device *dev = |
767 | container_of(to_config_group(se_dev_ci), struct se_device, dev_group); | |
c66ac9db NB |
768 | struct target_fabric_configfs *tf; |
769 | int ret; | |
770 | ||
0ff87549 NB |
771 | if (dev->dev_link_magic != SE_DEV_LINK_MAGIC) { |
772 | pr_err("Bad dev->dev_link_magic, not a valid se_dev_ci pointer:" | |
773 | " %p to struct se_device: %p\n", se_dev_ci, dev); | |
774 | return -EFAULT; | |
775 | } | |
776 | ||
faa06ab9 NB |
777 | if (!(dev->dev_flags & DF_CONFIGURED)) { |
778 | pr_err("se_device not configured yet, cannot port link\n"); | |
779 | return -ENODEV; | |
780 | } | |
781 | ||
c66ac9db NB |
782 | tpg_ci = &lun_ci->ci_parent->ci_group->cg_item; |
783 | se_tpg = container_of(to_config_group(tpg_ci), | |
784 | struct se_portal_group, tpg_group); | |
785 | tf = se_tpg->se_tpg_wwn->wwn_tf; | |
786 | ||
787 | if (lun->lun_se_dev != NULL) { | |
6708bb27 | 788 | pr_err("Port Symlink already exists\n"); |
c66ac9db NB |
789 | return -EEXIST; |
790 | } | |
791 | ||
2dca673b | 792 | lun_p = core_dev_add_lun(se_tpg, dev, lun->unpacked_lun); |
8d9efe53 | 793 | if (IS_ERR(lun_p)) { |
6708bb27 | 794 | pr_err("core_dev_add_lun() failed\n"); |
8d9efe53 | 795 | ret = PTR_ERR(lun_p); |
c66ac9db NB |
796 | goto out; |
797 | } | |
798 | ||
ef0caf8d | 799 | if (tf->tf_ops->fabric_post_link) { |
c66ac9db NB |
800 | /* |
801 | * Call the optional fabric_post_link() to allow a | |
802 | * fabric module to setup any additional state once | |
803 | * core_dev_add_lun() has been called.. | |
804 | */ | |
ef0caf8d | 805 | tf->tf_ops->fabric_post_link(se_tpg, lun); |
c66ac9db NB |
806 | } |
807 | ||
808 | return 0; | |
809 | out: | |
810 | return ret; | |
811 | } | |
812 | ||
813 | static int target_fabric_port_unlink( | |
814 | struct config_item *lun_ci, | |
815 | struct config_item *se_dev_ci) | |
816 | { | |
817 | struct se_lun *lun = container_of(to_config_group(lun_ci), | |
818 | struct se_lun, lun_group); | |
819 | struct se_portal_group *se_tpg = lun->lun_sep->sep_tpg; | |
820 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
821 | ||
ef0caf8d | 822 | if (tf->tf_ops->fabric_pre_unlink) { |
c66ac9db NB |
823 | /* |
824 | * Call the optional fabric_pre_unlink() to allow a | |
825 | * fabric module to release any additional stat before | |
826 | * core_dev_del_lun() is called. | |
827 | */ | |
ef0caf8d | 828 | tf->tf_ops->fabric_pre_unlink(se_tpg, lun); |
c66ac9db NB |
829 | } |
830 | ||
cd9d7cba | 831 | core_dev_del_lun(se_tpg, lun); |
c66ac9db NB |
832 | return 0; |
833 | } | |
834 | ||
835 | static struct configfs_item_operations target_fabric_port_item_ops = { | |
836 | .show_attribute = target_fabric_port_attr_show, | |
837 | .store_attribute = target_fabric_port_attr_store, | |
838 | .allow_link = target_fabric_port_link, | |
839 | .drop_link = target_fabric_port_unlink, | |
840 | }; | |
841 | ||
842 | TF_CIT_SETUP(tpg_port, &target_fabric_port_item_ops, NULL, target_fabric_port_attrs); | |
843 | ||
844 | /* End of tfc_tpg_port_cit */ | |
845 | ||
12d23384 NB |
846 | /* Start of tfc_tpg_port_stat_cit */ |
847 | ||
848 | static struct config_group *target_core_port_stat_mkdir( | |
849 | struct config_group *group, | |
850 | const char *name) | |
851 | { | |
852 | return ERR_PTR(-ENOSYS); | |
853 | } | |
854 | ||
855 | static void target_core_port_stat_rmdir( | |
856 | struct config_group *group, | |
857 | struct config_item *item) | |
858 | { | |
859 | return; | |
860 | } | |
861 | ||
862 | static struct configfs_group_operations target_fabric_port_stat_group_ops = { | |
863 | .make_group = target_core_port_stat_mkdir, | |
864 | .drop_item = target_core_port_stat_rmdir, | |
865 | }; | |
866 | ||
867 | TF_CIT_SETUP(tpg_port_stat, NULL, &target_fabric_port_stat_group_ops, NULL); | |
868 | ||
869 | /* End of tfc_tpg_port_stat_cit */ | |
870 | ||
c66ac9db NB |
871 | /* Start of tfc_tpg_lun_cit */ |
872 | ||
873 | static struct config_group *target_fabric_make_lun( | |
874 | struct config_group *group, | |
875 | const char *name) | |
876 | { | |
877 | struct se_lun *lun; | |
878 | struct se_portal_group *se_tpg = container_of(group, | |
879 | struct se_portal_group, tpg_lun_group); | |
880 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
12d23384 | 881 | struct config_group *lun_cg = NULL, *port_stat_grp = NULL; |
c66ac9db | 882 | unsigned long unpacked_lun; |
12d23384 | 883 | int errno; |
c66ac9db NB |
884 | |
885 | if (strstr(name, "lun_") != name) { | |
6708bb27 | 886 | pr_err("Unable to locate \'_\" in" |
c66ac9db NB |
887 | " \"lun_$LUN_NUMBER\"\n"); |
888 | return ERR_PTR(-EINVAL); | |
889 | } | |
57103d7f JH |
890 | errno = kstrtoul(name + 4, 0, &unpacked_lun); |
891 | if (errno) | |
892 | return ERR_PTR(errno); | |
893 | if (unpacked_lun > UINT_MAX) | |
c66ac9db NB |
894 | return ERR_PTR(-EINVAL); |
895 | ||
896 | lun = core_get_lun_from_tpg(se_tpg, unpacked_lun); | |
6708bb27 | 897 | if (!lun) |
c66ac9db NB |
898 | return ERR_PTR(-EINVAL); |
899 | ||
12d23384 | 900 | lun_cg = &lun->lun_group; |
13f6a914 | 901 | lun_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, |
12d23384 NB |
902 | GFP_KERNEL); |
903 | if (!lun_cg->default_groups) { | |
6708bb27 | 904 | pr_err("Unable to allocate lun_cg->default_groups\n"); |
12d23384 NB |
905 | return ERR_PTR(-ENOMEM); |
906 | } | |
907 | ||
c66ac9db | 908 | config_group_init_type_name(&lun->lun_group, name, |
968ebe75 | 909 | &tf->tf_tpg_port_cit); |
12d23384 | 910 | config_group_init_type_name(&lun->port_stat_grps.stat_group, |
968ebe75 | 911 | "statistics", &tf->tf_tpg_port_stat_cit); |
12d23384 NB |
912 | lun_cg->default_groups[0] = &lun->port_stat_grps.stat_group; |
913 | lun_cg->default_groups[1] = NULL; | |
914 | ||
e3d6f909 | 915 | port_stat_grp = &lun->port_stat_grps.stat_group; |
ab6dae82 | 916 | port_stat_grp->default_groups = kzalloc(sizeof(struct config_group *) * 4, |
12d23384 NB |
917 | GFP_KERNEL); |
918 | if (!port_stat_grp->default_groups) { | |
6708bb27 | 919 | pr_err("Unable to allocate port_stat_grp->default_groups\n"); |
1481473b JE |
920 | kfree(lun_cg->default_groups); |
921 | return ERR_PTR(-ENOMEM); | |
12d23384 NB |
922 | } |
923 | target_stat_setup_port_default_groups(lun); | |
c66ac9db NB |
924 | |
925 | return &lun->lun_group; | |
926 | } | |
927 | ||
928 | static void target_fabric_drop_lun( | |
929 | struct config_group *group, | |
930 | struct config_item *item) | |
931 | { | |
12d23384 NB |
932 | struct se_lun *lun = container_of(to_config_group(item), |
933 | struct se_lun, lun_group); | |
934 | struct config_item *df_item; | |
935 | struct config_group *lun_cg, *port_stat_grp; | |
936 | int i; | |
937 | ||
e3d6f909 | 938 | port_stat_grp = &lun->port_stat_grps.stat_group; |
12d23384 NB |
939 | for (i = 0; port_stat_grp->default_groups[i]; i++) { |
940 | df_item = &port_stat_grp->default_groups[i]->cg_item; | |
941 | port_stat_grp->default_groups[i] = NULL; | |
942 | config_item_put(df_item); | |
943 | } | |
944 | kfree(port_stat_grp->default_groups); | |
945 | ||
946 | lun_cg = &lun->lun_group; | |
947 | for (i = 0; lun_cg->default_groups[i]; i++) { | |
948 | df_item = &lun_cg->default_groups[i]->cg_item; | |
949 | lun_cg->default_groups[i] = NULL; | |
950 | config_item_put(df_item); | |
951 | } | |
952 | kfree(lun_cg->default_groups); | |
953 | ||
c66ac9db NB |
954 | config_item_put(item); |
955 | } | |
956 | ||
957 | static struct configfs_group_operations target_fabric_lun_group_ops = { | |
958 | .make_group = &target_fabric_make_lun, | |
959 | .drop_item = &target_fabric_drop_lun, | |
960 | }; | |
961 | ||
962 | TF_CIT_SETUP(tpg_lun, NULL, &target_fabric_lun_group_ops, NULL); | |
963 | ||
964 | /* End of tfc_tpg_lun_cit */ | |
965 | ||
966 | /* Start of tfc_tpg_attrib_cit */ | |
967 | ||
968 | CONFIGFS_EATTR_OPS(target_fabric_tpg_attrib, se_portal_group, tpg_attrib_group); | |
969 | ||
970 | static struct configfs_item_operations target_fabric_tpg_attrib_item_ops = { | |
971 | .show_attribute = target_fabric_tpg_attrib_attr_show, | |
972 | .store_attribute = target_fabric_tpg_attrib_attr_store, | |
973 | }; | |
974 | ||
9ac8928e | 975 | TF_CIT_SETUP_DRV(tpg_attrib, &target_fabric_tpg_attrib_item_ops, NULL); |
c66ac9db NB |
976 | |
977 | /* End of tfc_tpg_attrib_cit */ | |
978 | ||
e4b512e7 NB |
979 | /* Start of tfc_tpg_auth_cit */ |
980 | ||
981 | CONFIGFS_EATTR_OPS(target_fabric_tpg_auth, se_portal_group, tpg_auth_group); | |
982 | ||
983 | static struct configfs_item_operations target_fabric_tpg_auth_item_ops = { | |
984 | .show_attribute = target_fabric_tpg_auth_attr_show, | |
985 | .store_attribute = target_fabric_tpg_auth_attr_store, | |
986 | }; | |
987 | ||
9ac8928e | 988 | TF_CIT_SETUP_DRV(tpg_auth, &target_fabric_tpg_auth_item_ops, NULL); |
e4b512e7 NB |
989 | |
990 | /* End of tfc_tpg_attrib_cit */ | |
991 | ||
c66ac9db NB |
992 | /* Start of tfc_tpg_param_cit */ |
993 | ||
994 | CONFIGFS_EATTR_OPS(target_fabric_tpg_param, se_portal_group, tpg_param_group); | |
995 | ||
996 | static struct configfs_item_operations target_fabric_tpg_param_item_ops = { | |
997 | .show_attribute = target_fabric_tpg_param_attr_show, | |
998 | .store_attribute = target_fabric_tpg_param_attr_store, | |
999 | }; | |
1000 | ||
9ac8928e | 1001 | TF_CIT_SETUP_DRV(tpg_param, &target_fabric_tpg_param_item_ops, NULL); |
c66ac9db NB |
1002 | |
1003 | /* End of tfc_tpg_param_cit */ | |
1004 | ||
1005 | /* Start of tfc_tpg_base_cit */ | |
1006 | /* | |
1007 | * For use with TF_TPG_ATTR() and TF_TPG_ATTR_RO() | |
1008 | */ | |
1009 | CONFIGFS_EATTR_OPS(target_fabric_tpg, se_portal_group, tpg_group); | |
1010 | ||
1f6fe7cb NB |
1011 | static void target_fabric_tpg_release(struct config_item *item) |
1012 | { | |
1013 | struct se_portal_group *se_tpg = container_of(to_config_group(item), | |
1014 | struct se_portal_group, tpg_group); | |
1015 | struct se_wwn *wwn = se_tpg->se_tpg_wwn; | |
1016 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
1017 | ||
ef0caf8d | 1018 | tf->tf_ops->fabric_drop_tpg(se_tpg); |
1f6fe7cb NB |
1019 | } |
1020 | ||
c66ac9db | 1021 | static struct configfs_item_operations target_fabric_tpg_base_item_ops = { |
1f6fe7cb | 1022 | .release = target_fabric_tpg_release, |
c66ac9db NB |
1023 | .show_attribute = target_fabric_tpg_attr_show, |
1024 | .store_attribute = target_fabric_tpg_attr_store, | |
1025 | }; | |
1026 | ||
9ac8928e | 1027 | TF_CIT_SETUP_DRV(tpg_base, &target_fabric_tpg_base_item_ops, NULL); |
c66ac9db NB |
1028 | |
1029 | /* End of tfc_tpg_base_cit */ | |
1030 | ||
1031 | /* Start of tfc_tpg_cit */ | |
1032 | ||
1033 | static struct config_group *target_fabric_make_tpg( | |
1034 | struct config_group *group, | |
1035 | const char *name) | |
1036 | { | |
1037 | struct se_wwn *wwn = container_of(group, struct se_wwn, wwn_group); | |
1038 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
1039 | struct se_portal_group *se_tpg; | |
1040 | ||
ef0caf8d CH |
1041 | if (!tf->tf_ops->fabric_make_tpg) { |
1042 | pr_err("tf->tf_ops->fabric_make_tpg is NULL\n"); | |
c66ac9db NB |
1043 | return ERR_PTR(-ENOSYS); |
1044 | } | |
1045 | ||
ef0caf8d | 1046 | se_tpg = tf->tf_ops->fabric_make_tpg(wwn, group, name); |
6708bb27 | 1047 | if (!se_tpg || IS_ERR(se_tpg)) |
c66ac9db NB |
1048 | return ERR_PTR(-EINVAL); |
1049 | /* | |
1050 | * Setup default groups from pre-allocated se_tpg->tpg_default_groups | |
1051 | */ | |
1052 | se_tpg->tpg_group.default_groups = se_tpg->tpg_default_groups; | |
1053 | se_tpg->tpg_group.default_groups[0] = &se_tpg->tpg_lun_group; | |
1054 | se_tpg->tpg_group.default_groups[1] = &se_tpg->tpg_np_group; | |
1055 | se_tpg->tpg_group.default_groups[2] = &se_tpg->tpg_acl_group; | |
1056 | se_tpg->tpg_group.default_groups[3] = &se_tpg->tpg_attrib_group; | |
e4b512e7 NB |
1057 | se_tpg->tpg_group.default_groups[4] = &se_tpg->tpg_auth_group; |
1058 | se_tpg->tpg_group.default_groups[5] = &se_tpg->tpg_param_group; | |
1059 | se_tpg->tpg_group.default_groups[6] = NULL; | |
c66ac9db NB |
1060 | |
1061 | config_group_init_type_name(&se_tpg->tpg_group, name, | |
968ebe75 | 1062 | &tf->tf_tpg_base_cit); |
c66ac9db | 1063 | config_group_init_type_name(&se_tpg->tpg_lun_group, "lun", |
968ebe75 | 1064 | &tf->tf_tpg_lun_cit); |
c66ac9db | 1065 | config_group_init_type_name(&se_tpg->tpg_np_group, "np", |
968ebe75 | 1066 | &tf->tf_tpg_np_cit); |
c66ac9db | 1067 | config_group_init_type_name(&se_tpg->tpg_acl_group, "acls", |
968ebe75 | 1068 | &tf->tf_tpg_nacl_cit); |
c66ac9db | 1069 | config_group_init_type_name(&se_tpg->tpg_attrib_group, "attrib", |
968ebe75 | 1070 | &tf->tf_tpg_attrib_cit); |
e4b512e7 | 1071 | config_group_init_type_name(&se_tpg->tpg_auth_group, "auth", |
968ebe75 | 1072 | &tf->tf_tpg_auth_cit); |
c66ac9db | 1073 | config_group_init_type_name(&se_tpg->tpg_param_group, "param", |
968ebe75 | 1074 | &tf->tf_tpg_param_cit); |
c66ac9db NB |
1075 | |
1076 | return &se_tpg->tpg_group; | |
1077 | } | |
1078 | ||
1079 | static void target_fabric_drop_tpg( | |
1080 | struct config_group *group, | |
1081 | struct config_item *item) | |
1082 | { | |
c66ac9db NB |
1083 | struct se_portal_group *se_tpg = container_of(to_config_group(item), |
1084 | struct se_portal_group, tpg_group); | |
1085 | struct config_group *tpg_cg = &se_tpg->tpg_group; | |
1086 | struct config_item *df_item; | |
1087 | int i; | |
1088 | /* | |
1089 | * Release default groups, but do not release tpg_cg->default_groups | |
1090 | * memory as it is statically allocated at se_tpg->tpg_default_groups. | |
1091 | */ | |
1092 | for (i = 0; tpg_cg->default_groups[i]; i++) { | |
1093 | df_item = &tpg_cg->default_groups[i]->cg_item; | |
1094 | tpg_cg->default_groups[i] = NULL; | |
1095 | config_item_put(df_item); | |
1096 | } | |
1097 | ||
1098 | config_item_put(item); | |
c66ac9db NB |
1099 | } |
1100 | ||
1f6fe7cb NB |
1101 | static void target_fabric_release_wwn(struct config_item *item) |
1102 | { | |
1103 | struct se_wwn *wwn = container_of(to_config_group(item), | |
1104 | struct se_wwn, wwn_group); | |
1105 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
1106 | ||
ef0caf8d | 1107 | tf->tf_ops->fabric_drop_wwn(wwn); |
1f6fe7cb NB |
1108 | } |
1109 | ||
1110 | static struct configfs_item_operations target_fabric_tpg_item_ops = { | |
1111 | .release = target_fabric_release_wwn, | |
1112 | }; | |
1113 | ||
c66ac9db NB |
1114 | static struct configfs_group_operations target_fabric_tpg_group_ops = { |
1115 | .make_group = target_fabric_make_tpg, | |
1116 | .drop_item = target_fabric_drop_tpg, | |
1117 | }; | |
1118 | ||
1f6fe7cb NB |
1119 | TF_CIT_SETUP(tpg, &target_fabric_tpg_item_ops, &target_fabric_tpg_group_ops, |
1120 | NULL); | |
c66ac9db NB |
1121 | |
1122 | /* End of tfc_tpg_cit */ | |
1123 | ||
12d23384 NB |
1124 | /* Start of tfc_wwn_fabric_stats_cit */ |
1125 | /* | |
1126 | * This is used as a placeholder for struct se_wwn->fabric_stat_group | |
1127 | * to allow fabrics access to ->fabric_stat_group->default_groups[] | |
1128 | */ | |
1129 | TF_CIT_SETUP(wwn_fabric_stats, NULL, NULL, NULL); | |
1130 | ||
1131 | /* End of tfc_wwn_fabric_stats_cit */ | |
1132 | ||
c66ac9db NB |
1133 | /* Start of tfc_wwn_cit */ |
1134 | ||
1135 | static struct config_group *target_fabric_make_wwn( | |
1136 | struct config_group *group, | |
1137 | const char *name) | |
1138 | { | |
1139 | struct target_fabric_configfs *tf = container_of(group, | |
1140 | struct target_fabric_configfs, tf_group); | |
1141 | struct se_wwn *wwn; | |
1142 | ||
ef0caf8d | 1143 | if (!tf->tf_ops->fabric_make_wwn) { |
6708bb27 | 1144 | pr_err("tf->tf_ops.fabric_make_wwn is NULL\n"); |
c66ac9db NB |
1145 | return ERR_PTR(-ENOSYS); |
1146 | } | |
1147 | ||
ef0caf8d | 1148 | wwn = tf->tf_ops->fabric_make_wwn(tf, group, name); |
6708bb27 | 1149 | if (!wwn || IS_ERR(wwn)) |
c66ac9db NB |
1150 | return ERR_PTR(-EINVAL); |
1151 | ||
1152 | wwn->wwn_tf = tf; | |
12d23384 NB |
1153 | /* |
1154 | * Setup default groups from pre-allocated wwn->wwn_default_groups | |
1155 | */ | |
1156 | wwn->wwn_group.default_groups = wwn->wwn_default_groups; | |
1157 | wwn->wwn_group.default_groups[0] = &wwn->fabric_stat_group; | |
1158 | wwn->wwn_group.default_groups[1] = NULL; | |
1159 | ||
968ebe75 | 1160 | config_group_init_type_name(&wwn->wwn_group, name, &tf->tf_tpg_cit); |
12d23384 | 1161 | config_group_init_type_name(&wwn->fabric_stat_group, "fabric_statistics", |
968ebe75 | 1162 | &tf->tf_wwn_fabric_stats_cit); |
c66ac9db NB |
1163 | |
1164 | return &wwn->wwn_group; | |
1165 | } | |
1166 | ||
1167 | static void target_fabric_drop_wwn( | |
1168 | struct config_group *group, | |
1169 | struct config_item *item) | |
1170 | { | |
12d23384 NB |
1171 | struct se_wwn *wwn = container_of(to_config_group(item), |
1172 | struct se_wwn, wwn_group); | |
1173 | struct config_item *df_item; | |
1174 | struct config_group *cg = &wwn->wwn_group; | |
1175 | int i; | |
1176 | ||
1177 | for (i = 0; cg->default_groups[i]; i++) { | |
1178 | df_item = &cg->default_groups[i]->cg_item; | |
1179 | cg->default_groups[i] = NULL; | |
1180 | config_item_put(df_item); | |
1181 | } | |
1182 | ||
c66ac9db | 1183 | config_item_put(item); |
c66ac9db NB |
1184 | } |
1185 | ||
1186 | static struct configfs_group_operations target_fabric_wwn_group_ops = { | |
1187 | .make_group = target_fabric_make_wwn, | |
1188 | .drop_item = target_fabric_drop_wwn, | |
1189 | }; | |
1190 | /* | |
1191 | * For use with TF_WWN_ATTR() and TF_WWN_ATTR_RO() | |
1192 | */ | |
1193 | CONFIGFS_EATTR_OPS(target_fabric_wwn, target_fabric_configfs, tf_group); | |
1194 | ||
1195 | static struct configfs_item_operations target_fabric_wwn_item_ops = { | |
1196 | .show_attribute = target_fabric_wwn_attr_show, | |
1197 | .store_attribute = target_fabric_wwn_attr_store, | |
1198 | }; | |
1199 | ||
9ac8928e | 1200 | TF_CIT_SETUP_DRV(wwn, &target_fabric_wwn_item_ops, &target_fabric_wwn_group_ops); |
c66ac9db NB |
1201 | |
1202 | /* End of tfc_wwn_cit */ | |
1203 | ||
1204 | /* Start of tfc_discovery_cit */ | |
1205 | ||
1206 | CONFIGFS_EATTR_OPS(target_fabric_discovery, target_fabric_configfs, | |
1207 | tf_disc_group); | |
1208 | ||
1209 | static struct configfs_item_operations target_fabric_discovery_item_ops = { | |
1210 | .show_attribute = target_fabric_discovery_attr_show, | |
1211 | .store_attribute = target_fabric_discovery_attr_store, | |
1212 | }; | |
1213 | ||
9ac8928e | 1214 | TF_CIT_SETUP_DRV(discovery, &target_fabric_discovery_item_ops, NULL); |
c66ac9db NB |
1215 | |
1216 | /* End of tfc_discovery_cit */ | |
1217 | ||
1218 | int target_fabric_setup_cits(struct target_fabric_configfs *tf) | |
1219 | { | |
1220 | target_fabric_setup_discovery_cit(tf); | |
1221 | target_fabric_setup_wwn_cit(tf); | |
12d23384 | 1222 | target_fabric_setup_wwn_fabric_stats_cit(tf); |
c66ac9db NB |
1223 | target_fabric_setup_tpg_cit(tf); |
1224 | target_fabric_setup_tpg_base_cit(tf); | |
1225 | target_fabric_setup_tpg_port_cit(tf); | |
12d23384 | 1226 | target_fabric_setup_tpg_port_stat_cit(tf); |
c66ac9db NB |
1227 | target_fabric_setup_tpg_lun_cit(tf); |
1228 | target_fabric_setup_tpg_np_cit(tf); | |
1229 | target_fabric_setup_tpg_np_base_cit(tf); | |
1230 | target_fabric_setup_tpg_attrib_cit(tf); | |
e4b512e7 | 1231 | target_fabric_setup_tpg_auth_cit(tf); |
c66ac9db NB |
1232 | target_fabric_setup_tpg_param_cit(tf); |
1233 | target_fabric_setup_tpg_nacl_cit(tf); | |
1234 | target_fabric_setup_tpg_nacl_base_cit(tf); | |
1235 | target_fabric_setup_tpg_nacl_attrib_cit(tf); | |
1236 | target_fabric_setup_tpg_nacl_auth_cit(tf); | |
1237 | target_fabric_setup_tpg_nacl_param_cit(tf); | |
12d23384 | 1238 | target_fabric_setup_tpg_nacl_stat_cit(tf); |
c66ac9db | 1239 | target_fabric_setup_tpg_mappedlun_cit(tf); |
12d23384 | 1240 | target_fabric_setup_tpg_mappedlun_stat_cit(tf); |
c66ac9db NB |
1241 | |
1242 | return 0; | |
1243 | } |