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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 | #include <target/target_core_fabric_configfs.h> |
c66ac9db NB |
39 | #include <target/configfs_macros.h> |
40 | ||
e26d99ae | 41 | #include "target_core_internal.h" |
c66ac9db | 42 | #include "target_core_alua.h" |
c66ac9db NB |
43 | #include "target_core_pr.h" |
44 | ||
45 | #define TF_CIT_SETUP(_name, _item_ops, _group_ops, _attrs) \ | |
46 | static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf) \ | |
47 | { \ | |
968ebe75 | 48 | struct config_item_type *cit = &tf->tf_##_name##_cit; \ |
c66ac9db NB |
49 | \ |
50 | cit->ct_item_ops = _item_ops; \ | |
51 | cit->ct_group_ops = _group_ops; \ | |
52 | cit->ct_attrs = _attrs; \ | |
0dc2e8d1 | 53 | cit->ct_owner = tf->tf_ops->module; \ |
6708bb27 | 54 | pr_debug("Setup generic %s\n", __stringify(_name)); \ |
c66ac9db NB |
55 | } |
56 | ||
9ac8928e CH |
57 | #define TF_CIT_SETUP_DRV(_name, _item_ops, _group_ops) \ |
58 | static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf) \ | |
59 | { \ | |
968ebe75 | 60 | struct config_item_type *cit = &tf->tf_##_name##_cit; \ |
ef0caf8d | 61 | struct configfs_attribute **attrs = tf->tf_ops->tfc_##_name##_attrs; \ |
9ac8928e CH |
62 | \ |
63 | cit->ct_item_ops = _item_ops; \ | |
64 | cit->ct_group_ops = _group_ops; \ | |
65 | cit->ct_attrs = attrs; \ | |
0dc2e8d1 | 66 | cit->ct_owner = tf->tf_ops->module; \ |
9ac8928e CH |
67 | pr_debug("Setup generic %s\n", __stringify(_name)); \ |
68 | } | |
69 | ||
c66ac9db NB |
70 | /* Start of tfc_tpg_mappedlun_cit */ |
71 | ||
72 | static int target_fabric_mappedlun_link( | |
73 | struct config_item *lun_acl_ci, | |
74 | struct config_item *lun_ci) | |
75 | { | |
76 | struct se_dev_entry *deve; | |
77 | struct se_lun *lun = container_of(to_config_group(lun_ci), | |
78 | struct se_lun, lun_group); | |
79 | struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci), | |
80 | struct se_lun_acl, se_lun_group); | |
81 | struct se_portal_group *se_tpg; | |
82 | struct config_item *nacl_ci, *tpg_ci, *tpg_ci_s, *wwn_ci, *wwn_ci_s; | |
6bb82612 | 83 | int lun_access; |
0ff87549 NB |
84 | |
85 | if (lun->lun_link_magic != SE_LUN_LINK_MAGIC) { | |
86 | pr_err("Bad lun->lun_link_magic, not a valid lun_ci pointer:" | |
87 | " %p to struct lun: %p\n", lun_ci, lun); | |
88 | return -EFAULT; | |
89 | } | |
c66ac9db NB |
90 | /* |
91 | * Ensure that the source port exists | |
92 | */ | |
adf653f9 CH |
93 | if (!lun->lun_se_dev) { |
94 | pr_err("Source se_lun->lun_se_dev does not exist\n"); | |
c66ac9db NB |
95 | return -EINVAL; |
96 | } | |
adf653f9 | 97 | se_tpg = lun->lun_tpg; |
c66ac9db NB |
98 | |
99 | nacl_ci = &lun_acl_ci->ci_parent->ci_group->cg_item; | |
100 | tpg_ci = &nacl_ci->ci_group->cg_item; | |
101 | wwn_ci = &tpg_ci->ci_group->cg_item; | |
102 | tpg_ci_s = &lun_ci->ci_parent->ci_group->cg_item; | |
103 | wwn_ci_s = &tpg_ci_s->ci_group->cg_item; | |
104 | /* | |
105 | * Make sure the SymLink is going to the same $FABRIC/$WWN/tpgt_$TPGT | |
106 | */ | |
107 | if (strcmp(config_item_name(wwn_ci), config_item_name(wwn_ci_s))) { | |
6708bb27 | 108 | pr_err("Illegal Initiator ACL SymLink outside of %s\n", |
c66ac9db NB |
109 | config_item_name(wwn_ci)); |
110 | return -EINVAL; | |
111 | } | |
112 | if (strcmp(config_item_name(tpg_ci), config_item_name(tpg_ci_s))) { | |
6708bb27 | 113 | pr_err("Illegal Initiator ACL Symlink outside of %s" |
c66ac9db NB |
114 | " TPGT: %s\n", config_item_name(wwn_ci), |
115 | config_item_name(tpg_ci)); | |
116 | return -EINVAL; | |
117 | } | |
118 | /* | |
119 | * If this struct se_node_acl was dynamically generated with | |
120 | * tpg_1/attrib/generate_node_acls=1, use the existing deve->lun_flags, | |
121 | * which be will write protected (READ-ONLY) when | |
122 | * tpg_1/attrib/demo_mode_write_protect=1 | |
123 | */ | |
29a05dee NB |
124 | rcu_read_lock(); |
125 | deve = target_nacl_find_deve(lacl->se_lun_nacl, lacl->mapped_lun); | |
126 | if (deve) | |
c66ac9db NB |
127 | lun_access = deve->lun_flags; |
128 | else | |
129 | lun_access = | |
e3d6f909 | 130 | (se_tpg->se_tpg_tfo->tpg_check_prod_mode_write_protect( |
c66ac9db NB |
131 | se_tpg)) ? TRANSPORT_LUNFLAGS_READ_ONLY : |
132 | TRANSPORT_LUNFLAGS_READ_WRITE; | |
29a05dee | 133 | rcu_read_unlock(); |
c66ac9db NB |
134 | /* |
135 | * Determine the actual mapped LUN value user wants.. | |
136 | * | |
137 | * This value is what the SCSI Initiator actually sees the | |
6bb82612 | 138 | * $FABRIC/$WWPN/$TPGT/lun/lun_* as on their SCSI Initiator Ports. |
c66ac9db | 139 | */ |
6bb82612 | 140 | return core_dev_add_initiator_node_lun_acl(se_tpg, lacl, lun, lun_access); |
c66ac9db NB |
141 | } |
142 | ||
143 | static int target_fabric_mappedlun_unlink( | |
144 | struct config_item *lun_acl_ci, | |
145 | struct config_item *lun_ci) | |
146 | { | |
c66ac9db NB |
147 | struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci), |
148 | struct se_lun_acl, se_lun_group); | |
29a05dee NB |
149 | struct se_lun *lun = container_of(to_config_group(lun_ci), |
150 | struct se_lun, lun_group); | |
c66ac9db | 151 | |
adf653f9 | 152 | return core_dev_del_initiator_node_lun_acl(lun, lacl); |
c66ac9db NB |
153 | } |
154 | ||
155 | CONFIGFS_EATTR_STRUCT(target_fabric_mappedlun, se_lun_acl); | |
156 | #define TCM_MAPPEDLUN_ATTR(_name, _mode) \ | |
157 | static struct target_fabric_mappedlun_attribute target_fabric_mappedlun_##_name = \ | |
158 | __CONFIGFS_EATTR(_name, _mode, \ | |
159 | target_fabric_mappedlun_show_##_name, \ | |
160 | target_fabric_mappedlun_store_##_name); | |
161 | ||
162 | static ssize_t target_fabric_mappedlun_show_write_protect( | |
163 | struct se_lun_acl *lacl, | |
164 | char *page) | |
165 | { | |
166 | struct se_node_acl *se_nacl = lacl->se_lun_nacl; | |
167 | struct se_dev_entry *deve; | |
29a05dee NB |
168 | ssize_t len = 0; |
169 | ||
170 | rcu_read_lock(); | |
171 | deve = target_nacl_find_deve(se_nacl, lacl->mapped_lun); | |
172 | if (deve) { | |
173 | len = sprintf(page, "%d\n", | |
174 | (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY) ? 1 : 0); | |
175 | } | |
176 | rcu_read_unlock(); | |
c66ac9db NB |
177 | |
178 | return len; | |
179 | } | |
180 | ||
181 | static ssize_t target_fabric_mappedlun_store_write_protect( | |
182 | struct se_lun_acl *lacl, | |
183 | const char *page, | |
184 | size_t count) | |
185 | { | |
186 | struct se_node_acl *se_nacl = lacl->se_lun_nacl; | |
187 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
188 | unsigned long op; | |
57103d7f | 189 | int ret; |
c66ac9db | 190 | |
57103d7f JH |
191 | ret = kstrtoul(page, 0, &op); |
192 | if (ret) | |
193 | return ret; | |
c66ac9db NB |
194 | |
195 | if ((op != 1) && (op != 0)) | |
196 | return -EINVAL; | |
197 | ||
198 | core_update_device_list_access(lacl->mapped_lun, (op) ? | |
199 | TRANSPORT_LUNFLAGS_READ_ONLY : | |
200 | TRANSPORT_LUNFLAGS_READ_WRITE, | |
201 | lacl->se_lun_nacl); | |
202 | ||
6708bb27 | 203 | pr_debug("%s_ConfigFS: Changed Initiator ACL: %s" |
f2d30680 | 204 | " Mapped LUN: %llu Write Protect bit to %s\n", |
e3d6f909 | 205 | se_tpg->se_tpg_tfo->get_fabric_name(), |
b6a54b8d | 206 | se_nacl->initiatorname, lacl->mapped_lun, (op) ? "ON" : "OFF"); |
c66ac9db NB |
207 | |
208 | return count; | |
209 | ||
210 | } | |
211 | ||
212 | TCM_MAPPEDLUN_ATTR(write_protect, S_IRUGO | S_IWUSR); | |
213 | ||
214 | CONFIGFS_EATTR_OPS(target_fabric_mappedlun, se_lun_acl, se_lun_group); | |
215 | ||
1f6fe7cb NB |
216 | static void target_fabric_mappedlun_release(struct config_item *item) |
217 | { | |
218 | struct se_lun_acl *lacl = container_of(to_config_group(item), | |
219 | struct se_lun_acl, se_lun_group); | |
220 | struct se_portal_group *se_tpg = lacl->se_lun_nacl->se_tpg; | |
221 | ||
222 | core_dev_free_initiator_node_lun_acl(se_tpg, lacl); | |
223 | } | |
224 | ||
c66ac9db NB |
225 | static struct configfs_attribute *target_fabric_mappedlun_attrs[] = { |
226 | &target_fabric_mappedlun_write_protect.attr, | |
227 | NULL, | |
228 | }; | |
229 | ||
230 | static struct configfs_item_operations target_fabric_mappedlun_item_ops = { | |
1f6fe7cb | 231 | .release = target_fabric_mappedlun_release, |
c66ac9db NB |
232 | .show_attribute = target_fabric_mappedlun_attr_show, |
233 | .store_attribute = target_fabric_mappedlun_attr_store, | |
234 | .allow_link = target_fabric_mappedlun_link, | |
235 | .drop_link = target_fabric_mappedlun_unlink, | |
236 | }; | |
237 | ||
238 | TF_CIT_SETUP(tpg_mappedlun, &target_fabric_mappedlun_item_ops, NULL, | |
239 | target_fabric_mappedlun_attrs); | |
240 | ||
241 | /* End of tfc_tpg_mappedlun_cit */ | |
242 | ||
12d23384 NB |
243 | /* Start of tfc_tpg_mappedlun_port_cit */ |
244 | ||
245 | static struct config_group *target_core_mappedlun_stat_mkdir( | |
246 | struct config_group *group, | |
247 | const char *name) | |
248 | { | |
249 | return ERR_PTR(-ENOSYS); | |
250 | } | |
251 | ||
252 | static void target_core_mappedlun_stat_rmdir( | |
253 | struct config_group *group, | |
254 | struct config_item *item) | |
255 | { | |
256 | return; | |
257 | } | |
258 | ||
259 | static struct configfs_group_operations target_fabric_mappedlun_stat_group_ops = { | |
260 | .make_group = target_core_mappedlun_stat_mkdir, | |
261 | .drop_item = target_core_mappedlun_stat_rmdir, | |
262 | }; | |
263 | ||
264 | TF_CIT_SETUP(tpg_mappedlun_stat, NULL, &target_fabric_mappedlun_stat_group_ops, | |
265 | NULL); | |
266 | ||
267 | /* End of tfc_tpg_mappedlun_port_cit */ | |
268 | ||
c66ac9db NB |
269 | /* Start of tfc_tpg_nacl_attrib_cit */ |
270 | ||
271 | CONFIGFS_EATTR_OPS(target_fabric_nacl_attrib, se_node_acl, acl_attrib_group); | |
272 | ||
273 | static struct configfs_item_operations target_fabric_nacl_attrib_item_ops = { | |
274 | .show_attribute = target_fabric_nacl_attrib_attr_show, | |
275 | .store_attribute = target_fabric_nacl_attrib_attr_store, | |
276 | }; | |
277 | ||
9ac8928e | 278 | TF_CIT_SETUP_DRV(tpg_nacl_attrib, &target_fabric_nacl_attrib_item_ops, NULL); |
c66ac9db NB |
279 | |
280 | /* End of tfc_tpg_nacl_attrib_cit */ | |
281 | ||
282 | /* Start of tfc_tpg_nacl_auth_cit */ | |
283 | ||
284 | CONFIGFS_EATTR_OPS(target_fabric_nacl_auth, se_node_acl, acl_auth_group); | |
285 | ||
286 | static struct configfs_item_operations target_fabric_nacl_auth_item_ops = { | |
287 | .show_attribute = target_fabric_nacl_auth_attr_show, | |
288 | .store_attribute = target_fabric_nacl_auth_attr_store, | |
289 | }; | |
290 | ||
9ac8928e | 291 | TF_CIT_SETUP_DRV(tpg_nacl_auth, &target_fabric_nacl_auth_item_ops, NULL); |
c66ac9db NB |
292 | |
293 | /* End of tfc_tpg_nacl_auth_cit */ | |
294 | ||
295 | /* Start of tfc_tpg_nacl_param_cit */ | |
296 | ||
297 | CONFIGFS_EATTR_OPS(target_fabric_nacl_param, se_node_acl, acl_param_group); | |
298 | ||
299 | static struct configfs_item_operations target_fabric_nacl_param_item_ops = { | |
300 | .show_attribute = target_fabric_nacl_param_attr_show, | |
301 | .store_attribute = target_fabric_nacl_param_attr_store, | |
302 | }; | |
303 | ||
9ac8928e | 304 | TF_CIT_SETUP_DRV(tpg_nacl_param, &target_fabric_nacl_param_item_ops, NULL); |
c66ac9db NB |
305 | |
306 | /* End of tfc_tpg_nacl_param_cit */ | |
307 | ||
308 | /* Start of tfc_tpg_nacl_base_cit */ | |
309 | ||
310 | CONFIGFS_EATTR_OPS(target_fabric_nacl_base, se_node_acl, acl_group); | |
311 | ||
312 | static struct config_group *target_fabric_make_mappedlun( | |
313 | struct config_group *group, | |
314 | const char *name) | |
315 | { | |
316 | struct se_node_acl *se_nacl = container_of(group, | |
317 | struct se_node_acl, acl_group); | |
318 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
319 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
da0abaee | 320 | struct se_lun_acl *lacl = NULL; |
c66ac9db | 321 | struct config_item *acl_ci; |
12d23384 | 322 | struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; |
c66ac9db | 323 | char *buf; |
f2d30680 | 324 | unsigned long long mapped_lun; |
c66ac9db NB |
325 | int ret = 0; |
326 | ||
327 | acl_ci = &group->cg_item; | |
6708bb27 AG |
328 | if (!acl_ci) { |
329 | pr_err("Unable to locatel acl_ci\n"); | |
c66ac9db NB |
330 | return NULL; |
331 | } | |
332 | ||
333 | buf = kzalloc(strlen(name) + 1, GFP_KERNEL); | |
6708bb27 AG |
334 | if (!buf) { |
335 | pr_err("Unable to allocate memory for name buf\n"); | |
c66ac9db NB |
336 | return ERR_PTR(-ENOMEM); |
337 | } | |
338 | snprintf(buf, strlen(name) + 1, "%s", name); | |
339 | /* | |
340 | * Make sure user is creating iscsi/$IQN/$TPGT/acls/$INITIATOR/lun_$ID. | |
341 | */ | |
342 | if (strstr(buf, "lun_") != buf) { | |
6708bb27 | 343 | pr_err("Unable to locate \"lun_\" from buf: %s" |
c66ac9db NB |
344 | " name: %s\n", buf, name); |
345 | ret = -EINVAL; | |
346 | goto out; | |
347 | } | |
348 | /* | |
349 | * Determine the Mapped LUN value. This is what the SCSI Initiator | |
350 | * Port will actually see. | |
351 | */ | |
f2d30680 | 352 | ret = kstrtoull(buf + 4, 0, &mapped_lun); |
57103d7f JH |
353 | if (ret) |
354 | goto out; | |
c66ac9db | 355 | |
fcf29481 NB |
356 | lacl = core_dev_init_initiator_node_lun_acl(se_tpg, se_nacl, |
357 | mapped_lun, &ret); | |
6708bb27 | 358 | if (!lacl) { |
12d23384 | 359 | ret = -EINVAL; |
c66ac9db | 360 | goto out; |
12d23384 NB |
361 | } |
362 | ||
363 | lacl_cg = &lacl->se_lun_group; | |
13f6a914 | 364 | lacl_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, |
12d23384 NB |
365 | GFP_KERNEL); |
366 | if (!lacl_cg->default_groups) { | |
6708bb27 | 367 | pr_err("Unable to allocate lacl_cg->default_groups\n"); |
12d23384 NB |
368 | ret = -ENOMEM; |
369 | goto out; | |
370 | } | |
c66ac9db NB |
371 | |
372 | config_group_init_type_name(&lacl->se_lun_group, name, | |
968ebe75 | 373 | &tf->tf_tpg_mappedlun_cit); |
12d23384 | 374 | config_group_init_type_name(&lacl->ml_stat_grps.stat_group, |
968ebe75 | 375 | "statistics", &tf->tf_tpg_mappedlun_stat_cit); |
12d23384 NB |
376 | lacl_cg->default_groups[0] = &lacl->ml_stat_grps.stat_group; |
377 | lacl_cg->default_groups[1] = NULL; | |
378 | ||
e3d6f909 | 379 | ml_stat_grp = &lacl->ml_stat_grps.stat_group; |
13f6a914 | 380 | ml_stat_grp->default_groups = kmalloc(sizeof(struct config_group *) * 3, |
12d23384 NB |
381 | GFP_KERNEL); |
382 | if (!ml_stat_grp->default_groups) { | |
6708bb27 | 383 | pr_err("Unable to allocate ml_stat_grp->default_groups\n"); |
12d23384 NB |
384 | ret = -ENOMEM; |
385 | goto out; | |
386 | } | |
387 | target_stat_setup_mappedlun_default_groups(lacl); | |
c66ac9db NB |
388 | |
389 | kfree(buf); | |
390 | return &lacl->se_lun_group; | |
391 | out: | |
12d23384 NB |
392 | if (lacl_cg) |
393 | kfree(lacl_cg->default_groups); | |
da0abaee | 394 | kfree(lacl); |
c66ac9db NB |
395 | kfree(buf); |
396 | return ERR_PTR(ret); | |
397 | } | |
398 | ||
399 | static void target_fabric_drop_mappedlun( | |
400 | struct config_group *group, | |
401 | struct config_item *item) | |
402 | { | |
12d23384 NB |
403 | struct se_lun_acl *lacl = container_of(to_config_group(item), |
404 | struct se_lun_acl, se_lun_group); | |
405 | struct config_item *df_item; | |
406 | struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; | |
407 | int i; | |
408 | ||
e3d6f909 | 409 | ml_stat_grp = &lacl->ml_stat_grps.stat_group; |
12d23384 NB |
410 | for (i = 0; ml_stat_grp->default_groups[i]; i++) { |
411 | df_item = &ml_stat_grp->default_groups[i]->cg_item; | |
412 | ml_stat_grp->default_groups[i] = NULL; | |
413 | config_item_put(df_item); | |
414 | } | |
415 | kfree(ml_stat_grp->default_groups); | |
416 | ||
417 | lacl_cg = &lacl->se_lun_group; | |
418 | for (i = 0; lacl_cg->default_groups[i]; i++) { | |
419 | df_item = &lacl_cg->default_groups[i]->cg_item; | |
420 | lacl_cg->default_groups[i] = NULL; | |
421 | config_item_put(df_item); | |
422 | } | |
423 | kfree(lacl_cg->default_groups); | |
424 | ||
c66ac9db | 425 | config_item_put(item); |
1f6fe7cb NB |
426 | } |
427 | ||
428 | static void target_fabric_nacl_base_release(struct config_item *item) | |
429 | { | |
430 | struct se_node_acl *se_nacl = container_of(to_config_group(item), | |
431 | struct se_node_acl, acl_group); | |
c7d6a803 | 432 | struct target_fabric_configfs *tf = se_nacl->se_tpg->se_tpg_wwn->wwn_tf; |
1f6fe7cb | 433 | |
ef0caf8d CH |
434 | if (tf->tf_ops->fabric_cleanup_nodeacl) |
435 | tf->tf_ops->fabric_cleanup_nodeacl(se_nacl); | |
c7d6a803 | 436 | core_tpg_del_initiator_node_acl(se_nacl); |
c66ac9db NB |
437 | } |
438 | ||
439 | static struct configfs_item_operations target_fabric_nacl_base_item_ops = { | |
1f6fe7cb | 440 | .release = target_fabric_nacl_base_release, |
c66ac9db NB |
441 | .show_attribute = target_fabric_nacl_base_attr_show, |
442 | .store_attribute = target_fabric_nacl_base_attr_store, | |
443 | }; | |
444 | ||
445 | static struct configfs_group_operations target_fabric_nacl_base_group_ops = { | |
446 | .make_group = target_fabric_make_mappedlun, | |
447 | .drop_item = target_fabric_drop_mappedlun, | |
448 | }; | |
449 | ||
9ac8928e CH |
450 | TF_CIT_SETUP_DRV(tpg_nacl_base, &target_fabric_nacl_base_item_ops, |
451 | &target_fabric_nacl_base_group_ops); | |
c66ac9db NB |
452 | |
453 | /* End of tfc_tpg_nacl_base_cit */ | |
454 | ||
12d23384 NB |
455 | /* Start of tfc_node_fabric_stats_cit */ |
456 | /* | |
457 | * This is used as a placeholder for struct se_node_acl->acl_fabric_stat_group | |
458 | * to allow fabrics access to ->acl_fabric_stat_group->default_groups[] | |
459 | */ | |
460 | TF_CIT_SETUP(tpg_nacl_stat, NULL, NULL, NULL); | |
461 | ||
462 | /* End of tfc_wwn_fabric_stats_cit */ | |
463 | ||
c66ac9db NB |
464 | /* Start of tfc_tpg_nacl_cit */ |
465 | ||
466 | static struct config_group *target_fabric_make_nodeacl( | |
467 | struct config_group *group, | |
468 | const char *name) | |
469 | { | |
470 | struct se_portal_group *se_tpg = container_of(group, | |
471 | struct se_portal_group, tpg_acl_group); | |
472 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
473 | struct se_node_acl *se_nacl; | |
474 | struct config_group *nacl_cg; | |
475 | ||
c7d6a803 | 476 | se_nacl = core_tpg_add_initiator_node_acl(se_tpg, name); |
c66ac9db | 477 | if (IS_ERR(se_nacl)) |
e1750ba2 | 478 | return ERR_CAST(se_nacl); |
c66ac9db | 479 | |
ef0caf8d CH |
480 | if (tf->tf_ops->fabric_init_nodeacl) { |
481 | int ret = tf->tf_ops->fabric_init_nodeacl(se_nacl, name); | |
c7d6a803 CH |
482 | if (ret) { |
483 | core_tpg_del_initiator_node_acl(se_nacl); | |
484 | return ERR_PTR(ret); | |
485 | } | |
486 | } | |
487 | ||
c66ac9db NB |
488 | nacl_cg = &se_nacl->acl_group; |
489 | nacl_cg->default_groups = se_nacl->acl_default_groups; | |
490 | nacl_cg->default_groups[0] = &se_nacl->acl_attrib_group; | |
491 | nacl_cg->default_groups[1] = &se_nacl->acl_auth_group; | |
492 | nacl_cg->default_groups[2] = &se_nacl->acl_param_group; | |
12d23384 NB |
493 | nacl_cg->default_groups[3] = &se_nacl->acl_fabric_stat_group; |
494 | nacl_cg->default_groups[4] = NULL; | |
c66ac9db NB |
495 | |
496 | config_group_init_type_name(&se_nacl->acl_group, name, | |
968ebe75 | 497 | &tf->tf_tpg_nacl_base_cit); |
c66ac9db | 498 | config_group_init_type_name(&se_nacl->acl_attrib_group, "attrib", |
968ebe75 | 499 | &tf->tf_tpg_nacl_attrib_cit); |
c66ac9db | 500 | config_group_init_type_name(&se_nacl->acl_auth_group, "auth", |
968ebe75 | 501 | &tf->tf_tpg_nacl_auth_cit); |
c66ac9db | 502 | config_group_init_type_name(&se_nacl->acl_param_group, "param", |
968ebe75 | 503 | &tf->tf_tpg_nacl_param_cit); |
12d23384 | 504 | config_group_init_type_name(&se_nacl->acl_fabric_stat_group, |
968ebe75 | 505 | "fabric_statistics", &tf->tf_tpg_nacl_stat_cit); |
c66ac9db NB |
506 | |
507 | return &se_nacl->acl_group; | |
508 | } | |
509 | ||
510 | static void target_fabric_drop_nodeacl( | |
511 | struct config_group *group, | |
512 | struct config_item *item) | |
513 | { | |
c66ac9db NB |
514 | struct se_node_acl *se_nacl = container_of(to_config_group(item), |
515 | struct se_node_acl, acl_group); | |
516 | struct config_item *df_item; | |
517 | struct config_group *nacl_cg; | |
518 | int i; | |
519 | ||
520 | nacl_cg = &se_nacl->acl_group; | |
521 | for (i = 0; nacl_cg->default_groups[i]; i++) { | |
522 | df_item = &nacl_cg->default_groups[i]->cg_item; | |
523 | nacl_cg->default_groups[i] = NULL; | |
524 | config_item_put(df_item); | |
525 | } | |
1f6fe7cb NB |
526 | /* |
527 | * struct se_node_acl free is done in target_fabric_nacl_base_release() | |
528 | */ | |
c66ac9db | 529 | config_item_put(item); |
c66ac9db NB |
530 | } |
531 | ||
532 | static struct configfs_group_operations target_fabric_nacl_group_ops = { | |
533 | .make_group = target_fabric_make_nodeacl, | |
534 | .drop_item = target_fabric_drop_nodeacl, | |
535 | }; | |
536 | ||
537 | TF_CIT_SETUP(tpg_nacl, NULL, &target_fabric_nacl_group_ops, NULL); | |
538 | ||
539 | /* End of tfc_tpg_nacl_cit */ | |
540 | ||
541 | /* Start of tfc_tpg_np_base_cit */ | |
542 | ||
543 | CONFIGFS_EATTR_OPS(target_fabric_np_base, se_tpg_np, tpg_np_group); | |
544 | ||
1f6fe7cb NB |
545 | static void target_fabric_np_base_release(struct config_item *item) |
546 | { | |
547 | struct se_tpg_np *se_tpg_np = container_of(to_config_group(item), | |
548 | struct se_tpg_np, tpg_np_group); | |
549 | struct se_portal_group *se_tpg = se_tpg_np->tpg_np_parent; | |
550 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
551 | ||
ef0caf8d | 552 | tf->tf_ops->fabric_drop_np(se_tpg_np); |
1f6fe7cb NB |
553 | } |
554 | ||
c66ac9db | 555 | static struct configfs_item_operations target_fabric_np_base_item_ops = { |
1f6fe7cb | 556 | .release = target_fabric_np_base_release, |
c66ac9db NB |
557 | .show_attribute = target_fabric_np_base_attr_show, |
558 | .store_attribute = target_fabric_np_base_attr_store, | |
559 | }; | |
560 | ||
9ac8928e | 561 | TF_CIT_SETUP_DRV(tpg_np_base, &target_fabric_np_base_item_ops, NULL); |
c66ac9db NB |
562 | |
563 | /* End of tfc_tpg_np_base_cit */ | |
564 | ||
565 | /* Start of tfc_tpg_np_cit */ | |
566 | ||
567 | static struct config_group *target_fabric_make_np( | |
568 | struct config_group *group, | |
569 | const char *name) | |
570 | { | |
571 | struct se_portal_group *se_tpg = container_of(group, | |
572 | struct se_portal_group, tpg_np_group); | |
573 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
574 | struct se_tpg_np *se_tpg_np; | |
575 | ||
ef0caf8d | 576 | if (!tf->tf_ops->fabric_make_np) { |
6708bb27 | 577 | pr_err("tf->tf_ops.fabric_make_np is NULL\n"); |
c66ac9db NB |
578 | return ERR_PTR(-ENOSYS); |
579 | } | |
580 | ||
ef0caf8d | 581 | se_tpg_np = tf->tf_ops->fabric_make_np(se_tpg, group, name); |
6708bb27 | 582 | if (!se_tpg_np || IS_ERR(se_tpg_np)) |
c66ac9db NB |
583 | return ERR_PTR(-EINVAL); |
584 | ||
1f6fe7cb | 585 | se_tpg_np->tpg_np_parent = se_tpg; |
c66ac9db | 586 | config_group_init_type_name(&se_tpg_np->tpg_np_group, name, |
968ebe75 | 587 | &tf->tf_tpg_np_base_cit); |
c66ac9db NB |
588 | |
589 | return &se_tpg_np->tpg_np_group; | |
590 | } | |
591 | ||
592 | static void target_fabric_drop_np( | |
593 | struct config_group *group, | |
594 | struct config_item *item) | |
595 | { | |
1f6fe7cb NB |
596 | /* |
597 | * struct se_tpg_np is released via target_fabric_np_base_release() | |
598 | */ | |
c66ac9db | 599 | config_item_put(item); |
c66ac9db NB |
600 | } |
601 | ||
602 | static struct configfs_group_operations target_fabric_np_group_ops = { | |
603 | .make_group = &target_fabric_make_np, | |
604 | .drop_item = &target_fabric_drop_np, | |
605 | }; | |
606 | ||
607 | TF_CIT_SETUP(tpg_np, NULL, &target_fabric_np_group_ops, NULL); | |
608 | ||
609 | /* End of tfc_tpg_np_cit */ | |
610 | ||
611 | /* Start of tfc_tpg_port_cit */ | |
612 | ||
613 | CONFIGFS_EATTR_STRUCT(target_fabric_port, se_lun); | |
614 | #define TCM_PORT_ATTR(_name, _mode) \ | |
615 | static struct target_fabric_port_attribute target_fabric_port_##_name = \ | |
616 | __CONFIGFS_EATTR(_name, _mode, \ | |
617 | target_fabric_port_show_attr_##_name, \ | |
618 | target_fabric_port_store_attr_##_name); | |
619 | ||
620 | #define TCM_PORT_ATTOR_RO(_name) \ | |
621 | __CONFIGFS_EATTR_RO(_name, \ | |
622 | target_fabric_port_show_attr_##_name); | |
623 | ||
624 | /* | |
625 | * alua_tg_pt_gp | |
626 | */ | |
627 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_gp( | |
628 | struct se_lun *lun, | |
629 | char *page) | |
630 | { | |
adf653f9 | 631 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
632 | return -ENODEV; |
633 | ||
adf653f9 | 634 | return core_alua_show_tg_pt_gp_info(lun, page); |
c66ac9db NB |
635 | } |
636 | ||
637 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_gp( | |
638 | struct se_lun *lun, | |
639 | const char *page, | |
640 | size_t count) | |
641 | { | |
adf653f9 | 642 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
643 | return -ENODEV; |
644 | ||
adf653f9 | 645 | return core_alua_store_tg_pt_gp_info(lun, page, count); |
c66ac9db NB |
646 | } |
647 | ||
648 | TCM_PORT_ATTR(alua_tg_pt_gp, S_IRUGO | S_IWUSR); | |
649 | ||
650 | /* | |
651 | * alua_tg_pt_offline | |
652 | */ | |
653 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_offline( | |
654 | struct se_lun *lun, | |
655 | char *page) | |
656 | { | |
adf653f9 | 657 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
658 | return -ENODEV; |
659 | ||
660 | return core_alua_show_offline_bit(lun, page); | |
661 | } | |
662 | ||
663 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_offline( | |
664 | struct se_lun *lun, | |
665 | const char *page, | |
666 | size_t count) | |
667 | { | |
adf653f9 | 668 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
669 | return -ENODEV; |
670 | ||
671 | return core_alua_store_offline_bit(lun, page, count); | |
672 | } | |
673 | ||
674 | TCM_PORT_ATTR(alua_tg_pt_offline, S_IRUGO | S_IWUSR); | |
675 | ||
676 | /* | |
677 | * alua_tg_pt_status | |
678 | */ | |
679 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_status( | |
680 | struct se_lun *lun, | |
681 | char *page) | |
682 | { | |
adf653f9 | 683 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
684 | return -ENODEV; |
685 | ||
686 | return core_alua_show_secondary_status(lun, page); | |
687 | } | |
688 | ||
689 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_status( | |
690 | struct se_lun *lun, | |
691 | const char *page, | |
692 | size_t count) | |
693 | { | |
adf653f9 | 694 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
695 | return -ENODEV; |
696 | ||
697 | return core_alua_store_secondary_status(lun, page, count); | |
698 | } | |
699 | ||
700 | TCM_PORT_ATTR(alua_tg_pt_status, S_IRUGO | S_IWUSR); | |
701 | ||
702 | /* | |
703 | * alua_tg_pt_write_md | |
704 | */ | |
705 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_write_md( | |
706 | struct se_lun *lun, | |
707 | char *page) | |
708 | { | |
adf653f9 | 709 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
710 | return -ENODEV; |
711 | ||
712 | return core_alua_show_secondary_write_metadata(lun, page); | |
713 | } | |
714 | ||
715 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_write_md( | |
716 | struct se_lun *lun, | |
717 | const char *page, | |
718 | size_t count) | |
719 | { | |
adf653f9 | 720 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
721 | return -ENODEV; |
722 | ||
723 | return core_alua_store_secondary_write_metadata(lun, page, count); | |
724 | } | |
725 | ||
726 | TCM_PORT_ATTR(alua_tg_pt_write_md, S_IRUGO | S_IWUSR); | |
727 | ||
728 | ||
729 | static struct configfs_attribute *target_fabric_port_attrs[] = { | |
730 | &target_fabric_port_alua_tg_pt_gp.attr, | |
731 | &target_fabric_port_alua_tg_pt_offline.attr, | |
732 | &target_fabric_port_alua_tg_pt_status.attr, | |
733 | &target_fabric_port_alua_tg_pt_write_md.attr, | |
734 | NULL, | |
735 | }; | |
736 | ||
737 | CONFIGFS_EATTR_OPS(target_fabric_port, se_lun, lun_group); | |
738 | ||
739 | static int target_fabric_port_link( | |
740 | struct config_item *lun_ci, | |
741 | struct config_item *se_dev_ci) | |
742 | { | |
743 | struct config_item *tpg_ci; | |
c66ac9db NB |
744 | struct se_lun *lun = container_of(to_config_group(lun_ci), |
745 | struct se_lun, lun_group); | |
c66ac9db | 746 | struct se_portal_group *se_tpg; |
0fd97ccf CH |
747 | struct se_device *dev = |
748 | container_of(to_config_group(se_dev_ci), struct se_device, dev_group); | |
c66ac9db NB |
749 | struct target_fabric_configfs *tf; |
750 | int ret; | |
751 | ||
0ff87549 NB |
752 | if (dev->dev_link_magic != SE_DEV_LINK_MAGIC) { |
753 | pr_err("Bad dev->dev_link_magic, not a valid se_dev_ci pointer:" | |
754 | " %p to struct se_device: %p\n", se_dev_ci, dev); | |
755 | return -EFAULT; | |
756 | } | |
757 | ||
faa06ab9 NB |
758 | if (!(dev->dev_flags & DF_CONFIGURED)) { |
759 | pr_err("se_device not configured yet, cannot port link\n"); | |
760 | return -ENODEV; | |
761 | } | |
762 | ||
c66ac9db NB |
763 | tpg_ci = &lun_ci->ci_parent->ci_group->cg_item; |
764 | se_tpg = container_of(to_config_group(tpg_ci), | |
765 | struct se_portal_group, tpg_group); | |
766 | tf = se_tpg->se_tpg_wwn->wwn_tf; | |
767 | ||
768 | if (lun->lun_se_dev != NULL) { | |
6708bb27 | 769 | pr_err("Port Symlink already exists\n"); |
c66ac9db NB |
770 | return -EEXIST; |
771 | } | |
772 | ||
6bb82612 NB |
773 | ret = core_dev_add_lun(se_tpg, dev, lun); |
774 | if (ret) { | |
775 | pr_err("core_dev_add_lun() failed: %d\n", ret); | |
c66ac9db NB |
776 | goto out; |
777 | } | |
778 | ||
ef0caf8d | 779 | if (tf->tf_ops->fabric_post_link) { |
c66ac9db NB |
780 | /* |
781 | * Call the optional fabric_post_link() to allow a | |
782 | * fabric module to setup any additional state once | |
783 | * core_dev_add_lun() has been called.. | |
784 | */ | |
ef0caf8d | 785 | tf->tf_ops->fabric_post_link(se_tpg, lun); |
c66ac9db NB |
786 | } |
787 | ||
788 | return 0; | |
789 | out: | |
790 | return ret; | |
791 | } | |
792 | ||
793 | static int target_fabric_port_unlink( | |
794 | struct config_item *lun_ci, | |
795 | struct config_item *se_dev_ci) | |
796 | { | |
797 | struct se_lun *lun = container_of(to_config_group(lun_ci), | |
798 | struct se_lun, lun_group); | |
adf653f9 | 799 | struct se_portal_group *se_tpg = lun->lun_tpg; |
c66ac9db NB |
800 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; |
801 | ||
ef0caf8d | 802 | if (tf->tf_ops->fabric_pre_unlink) { |
c66ac9db NB |
803 | /* |
804 | * Call the optional fabric_pre_unlink() to allow a | |
805 | * fabric module to release any additional stat before | |
806 | * core_dev_del_lun() is called. | |
807 | */ | |
ef0caf8d | 808 | tf->tf_ops->fabric_pre_unlink(se_tpg, lun); |
c66ac9db NB |
809 | } |
810 | ||
cd9d7cba | 811 | core_dev_del_lun(se_tpg, lun); |
c66ac9db NB |
812 | return 0; |
813 | } | |
814 | ||
6bb82612 NB |
815 | static void target_fabric_port_release(struct config_item *item) |
816 | { | |
817 | struct se_lun *lun = container_of(to_config_group(item), | |
818 | struct se_lun, lun_group); | |
819 | ||
820 | kfree_rcu(lun, rcu_head); | |
821 | } | |
822 | ||
c66ac9db NB |
823 | static struct configfs_item_operations target_fabric_port_item_ops = { |
824 | .show_attribute = target_fabric_port_attr_show, | |
825 | .store_attribute = target_fabric_port_attr_store, | |
6bb82612 | 826 | .release = target_fabric_port_release, |
c66ac9db NB |
827 | .allow_link = target_fabric_port_link, |
828 | .drop_link = target_fabric_port_unlink, | |
829 | }; | |
830 | ||
831 | TF_CIT_SETUP(tpg_port, &target_fabric_port_item_ops, NULL, target_fabric_port_attrs); | |
832 | ||
833 | /* End of tfc_tpg_port_cit */ | |
834 | ||
12d23384 NB |
835 | /* Start of tfc_tpg_port_stat_cit */ |
836 | ||
837 | static struct config_group *target_core_port_stat_mkdir( | |
838 | struct config_group *group, | |
839 | const char *name) | |
840 | { | |
841 | return ERR_PTR(-ENOSYS); | |
842 | } | |
843 | ||
844 | static void target_core_port_stat_rmdir( | |
845 | struct config_group *group, | |
846 | struct config_item *item) | |
847 | { | |
848 | return; | |
849 | } | |
850 | ||
851 | static struct configfs_group_operations target_fabric_port_stat_group_ops = { | |
852 | .make_group = target_core_port_stat_mkdir, | |
853 | .drop_item = target_core_port_stat_rmdir, | |
854 | }; | |
855 | ||
856 | TF_CIT_SETUP(tpg_port_stat, NULL, &target_fabric_port_stat_group_ops, NULL); | |
857 | ||
858 | /* End of tfc_tpg_port_stat_cit */ | |
859 | ||
c66ac9db NB |
860 | /* Start of tfc_tpg_lun_cit */ |
861 | ||
862 | static struct config_group *target_fabric_make_lun( | |
863 | struct config_group *group, | |
864 | const char *name) | |
865 | { | |
866 | struct se_lun *lun; | |
867 | struct se_portal_group *se_tpg = container_of(group, | |
868 | struct se_portal_group, tpg_lun_group); | |
869 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
12d23384 | 870 | struct config_group *lun_cg = NULL, *port_stat_grp = NULL; |
f2d30680 | 871 | unsigned long long unpacked_lun; |
12d23384 | 872 | int errno; |
c66ac9db NB |
873 | |
874 | if (strstr(name, "lun_") != name) { | |
6708bb27 | 875 | pr_err("Unable to locate \'_\" in" |
c66ac9db NB |
876 | " \"lun_$LUN_NUMBER\"\n"); |
877 | return ERR_PTR(-EINVAL); | |
878 | } | |
f2d30680 | 879 | errno = kstrtoull(name + 4, 0, &unpacked_lun); |
57103d7f JH |
880 | if (errno) |
881 | return ERR_PTR(errno); | |
c66ac9db | 882 | |
6bb82612 NB |
883 | lun = core_tpg_alloc_lun(se_tpg, unpacked_lun); |
884 | if (IS_ERR(lun)) | |
885 | return ERR_CAST(lun); | |
c66ac9db | 886 | |
12d23384 | 887 | lun_cg = &lun->lun_group; |
13f6a914 | 888 | lun_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, |
12d23384 NB |
889 | GFP_KERNEL); |
890 | if (!lun_cg->default_groups) { | |
6708bb27 | 891 | pr_err("Unable to allocate lun_cg->default_groups\n"); |
6bb82612 | 892 | kfree(lun); |
12d23384 NB |
893 | return ERR_PTR(-ENOMEM); |
894 | } | |
895 | ||
c66ac9db | 896 | config_group_init_type_name(&lun->lun_group, name, |
968ebe75 | 897 | &tf->tf_tpg_port_cit); |
12d23384 | 898 | config_group_init_type_name(&lun->port_stat_grps.stat_group, |
968ebe75 | 899 | "statistics", &tf->tf_tpg_port_stat_cit); |
12d23384 NB |
900 | lun_cg->default_groups[0] = &lun->port_stat_grps.stat_group; |
901 | lun_cg->default_groups[1] = NULL; | |
902 | ||
e3d6f909 | 903 | port_stat_grp = &lun->port_stat_grps.stat_group; |
ab6dae82 | 904 | port_stat_grp->default_groups = kzalloc(sizeof(struct config_group *) * 4, |
12d23384 NB |
905 | GFP_KERNEL); |
906 | if (!port_stat_grp->default_groups) { | |
6708bb27 | 907 | pr_err("Unable to allocate port_stat_grp->default_groups\n"); |
1481473b | 908 | kfree(lun_cg->default_groups); |
6bb82612 | 909 | kfree(lun); |
1481473b | 910 | return ERR_PTR(-ENOMEM); |
12d23384 NB |
911 | } |
912 | target_stat_setup_port_default_groups(lun); | |
c66ac9db NB |
913 | |
914 | return &lun->lun_group; | |
915 | } | |
916 | ||
917 | static void target_fabric_drop_lun( | |
918 | struct config_group *group, | |
919 | struct config_item *item) | |
920 | { | |
12d23384 NB |
921 | struct se_lun *lun = container_of(to_config_group(item), |
922 | struct se_lun, lun_group); | |
923 | struct config_item *df_item; | |
924 | struct config_group *lun_cg, *port_stat_grp; | |
925 | int i; | |
926 | ||
e3d6f909 | 927 | port_stat_grp = &lun->port_stat_grps.stat_group; |
12d23384 NB |
928 | for (i = 0; port_stat_grp->default_groups[i]; i++) { |
929 | df_item = &port_stat_grp->default_groups[i]->cg_item; | |
930 | port_stat_grp->default_groups[i] = NULL; | |
931 | config_item_put(df_item); | |
932 | } | |
933 | kfree(port_stat_grp->default_groups); | |
934 | ||
935 | lun_cg = &lun->lun_group; | |
936 | for (i = 0; lun_cg->default_groups[i]; i++) { | |
937 | df_item = &lun_cg->default_groups[i]->cg_item; | |
938 | lun_cg->default_groups[i] = NULL; | |
939 | config_item_put(df_item); | |
940 | } | |
941 | kfree(lun_cg->default_groups); | |
942 | ||
c66ac9db NB |
943 | config_item_put(item); |
944 | } | |
945 | ||
946 | static struct configfs_group_operations target_fabric_lun_group_ops = { | |
947 | .make_group = &target_fabric_make_lun, | |
948 | .drop_item = &target_fabric_drop_lun, | |
949 | }; | |
950 | ||
951 | TF_CIT_SETUP(tpg_lun, NULL, &target_fabric_lun_group_ops, NULL); | |
952 | ||
953 | /* End of tfc_tpg_lun_cit */ | |
954 | ||
955 | /* Start of tfc_tpg_attrib_cit */ | |
956 | ||
957 | CONFIGFS_EATTR_OPS(target_fabric_tpg_attrib, se_portal_group, tpg_attrib_group); | |
958 | ||
959 | static struct configfs_item_operations target_fabric_tpg_attrib_item_ops = { | |
960 | .show_attribute = target_fabric_tpg_attrib_attr_show, | |
961 | .store_attribute = target_fabric_tpg_attrib_attr_store, | |
962 | }; | |
963 | ||
9ac8928e | 964 | TF_CIT_SETUP_DRV(tpg_attrib, &target_fabric_tpg_attrib_item_ops, NULL); |
c66ac9db NB |
965 | |
966 | /* End of tfc_tpg_attrib_cit */ | |
967 | ||
e4b512e7 NB |
968 | /* Start of tfc_tpg_auth_cit */ |
969 | ||
970 | CONFIGFS_EATTR_OPS(target_fabric_tpg_auth, se_portal_group, tpg_auth_group); | |
971 | ||
972 | static struct configfs_item_operations target_fabric_tpg_auth_item_ops = { | |
973 | .show_attribute = target_fabric_tpg_auth_attr_show, | |
974 | .store_attribute = target_fabric_tpg_auth_attr_store, | |
975 | }; | |
976 | ||
9ac8928e | 977 | TF_CIT_SETUP_DRV(tpg_auth, &target_fabric_tpg_auth_item_ops, NULL); |
e4b512e7 NB |
978 | |
979 | /* End of tfc_tpg_attrib_cit */ | |
980 | ||
c66ac9db NB |
981 | /* Start of tfc_tpg_param_cit */ |
982 | ||
983 | CONFIGFS_EATTR_OPS(target_fabric_tpg_param, se_portal_group, tpg_param_group); | |
984 | ||
985 | static struct configfs_item_operations target_fabric_tpg_param_item_ops = { | |
986 | .show_attribute = target_fabric_tpg_param_attr_show, | |
987 | .store_attribute = target_fabric_tpg_param_attr_store, | |
988 | }; | |
989 | ||
9ac8928e | 990 | TF_CIT_SETUP_DRV(tpg_param, &target_fabric_tpg_param_item_ops, NULL); |
c66ac9db NB |
991 | |
992 | /* End of tfc_tpg_param_cit */ | |
993 | ||
994 | /* Start of tfc_tpg_base_cit */ | |
995 | /* | |
996 | * For use with TF_TPG_ATTR() and TF_TPG_ATTR_RO() | |
997 | */ | |
998 | CONFIGFS_EATTR_OPS(target_fabric_tpg, se_portal_group, tpg_group); | |
999 | ||
1f6fe7cb NB |
1000 | static void target_fabric_tpg_release(struct config_item *item) |
1001 | { | |
1002 | struct se_portal_group *se_tpg = container_of(to_config_group(item), | |
1003 | struct se_portal_group, tpg_group); | |
1004 | struct se_wwn *wwn = se_tpg->se_tpg_wwn; | |
1005 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
1006 | ||
ef0caf8d | 1007 | tf->tf_ops->fabric_drop_tpg(se_tpg); |
1f6fe7cb NB |
1008 | } |
1009 | ||
c66ac9db | 1010 | static struct configfs_item_operations target_fabric_tpg_base_item_ops = { |
1f6fe7cb | 1011 | .release = target_fabric_tpg_release, |
c66ac9db NB |
1012 | .show_attribute = target_fabric_tpg_attr_show, |
1013 | .store_attribute = target_fabric_tpg_attr_store, | |
1014 | }; | |
1015 | ||
9ac8928e | 1016 | TF_CIT_SETUP_DRV(tpg_base, &target_fabric_tpg_base_item_ops, NULL); |
c66ac9db NB |
1017 | |
1018 | /* End of tfc_tpg_base_cit */ | |
1019 | ||
1020 | /* Start of tfc_tpg_cit */ | |
1021 | ||
1022 | static struct config_group *target_fabric_make_tpg( | |
1023 | struct config_group *group, | |
1024 | const char *name) | |
1025 | { | |
1026 | struct se_wwn *wwn = container_of(group, struct se_wwn, wwn_group); | |
1027 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
1028 | struct se_portal_group *se_tpg; | |
1029 | ||
ef0caf8d CH |
1030 | if (!tf->tf_ops->fabric_make_tpg) { |
1031 | pr_err("tf->tf_ops->fabric_make_tpg is NULL\n"); | |
c66ac9db NB |
1032 | return ERR_PTR(-ENOSYS); |
1033 | } | |
1034 | ||
ef0caf8d | 1035 | se_tpg = tf->tf_ops->fabric_make_tpg(wwn, group, name); |
6708bb27 | 1036 | if (!se_tpg || IS_ERR(se_tpg)) |
c66ac9db NB |
1037 | return ERR_PTR(-EINVAL); |
1038 | /* | |
1039 | * Setup default groups from pre-allocated se_tpg->tpg_default_groups | |
1040 | */ | |
1041 | se_tpg->tpg_group.default_groups = se_tpg->tpg_default_groups; | |
1042 | se_tpg->tpg_group.default_groups[0] = &se_tpg->tpg_lun_group; | |
1043 | se_tpg->tpg_group.default_groups[1] = &se_tpg->tpg_np_group; | |
1044 | se_tpg->tpg_group.default_groups[2] = &se_tpg->tpg_acl_group; | |
1045 | se_tpg->tpg_group.default_groups[3] = &se_tpg->tpg_attrib_group; | |
e4b512e7 NB |
1046 | se_tpg->tpg_group.default_groups[4] = &se_tpg->tpg_auth_group; |
1047 | se_tpg->tpg_group.default_groups[5] = &se_tpg->tpg_param_group; | |
1048 | se_tpg->tpg_group.default_groups[6] = NULL; | |
c66ac9db NB |
1049 | |
1050 | config_group_init_type_name(&se_tpg->tpg_group, name, | |
968ebe75 | 1051 | &tf->tf_tpg_base_cit); |
c66ac9db | 1052 | config_group_init_type_name(&se_tpg->tpg_lun_group, "lun", |
968ebe75 | 1053 | &tf->tf_tpg_lun_cit); |
c66ac9db | 1054 | config_group_init_type_name(&se_tpg->tpg_np_group, "np", |
968ebe75 | 1055 | &tf->tf_tpg_np_cit); |
c66ac9db | 1056 | config_group_init_type_name(&se_tpg->tpg_acl_group, "acls", |
968ebe75 | 1057 | &tf->tf_tpg_nacl_cit); |
c66ac9db | 1058 | config_group_init_type_name(&se_tpg->tpg_attrib_group, "attrib", |
968ebe75 | 1059 | &tf->tf_tpg_attrib_cit); |
e4b512e7 | 1060 | config_group_init_type_name(&se_tpg->tpg_auth_group, "auth", |
968ebe75 | 1061 | &tf->tf_tpg_auth_cit); |
c66ac9db | 1062 | config_group_init_type_name(&se_tpg->tpg_param_group, "param", |
968ebe75 | 1063 | &tf->tf_tpg_param_cit); |
c66ac9db NB |
1064 | |
1065 | return &se_tpg->tpg_group; | |
1066 | } | |
1067 | ||
1068 | static void target_fabric_drop_tpg( | |
1069 | struct config_group *group, | |
1070 | struct config_item *item) | |
1071 | { | |
c66ac9db NB |
1072 | struct se_portal_group *se_tpg = container_of(to_config_group(item), |
1073 | struct se_portal_group, tpg_group); | |
1074 | struct config_group *tpg_cg = &se_tpg->tpg_group; | |
1075 | struct config_item *df_item; | |
1076 | int i; | |
1077 | /* | |
1078 | * Release default groups, but do not release tpg_cg->default_groups | |
1079 | * memory as it is statically allocated at se_tpg->tpg_default_groups. | |
1080 | */ | |
1081 | for (i = 0; tpg_cg->default_groups[i]; i++) { | |
1082 | df_item = &tpg_cg->default_groups[i]->cg_item; | |
1083 | tpg_cg->default_groups[i] = NULL; | |
1084 | config_item_put(df_item); | |
1085 | } | |
1086 | ||
1087 | config_item_put(item); | |
c66ac9db NB |
1088 | } |
1089 | ||
1f6fe7cb NB |
1090 | static void target_fabric_release_wwn(struct config_item *item) |
1091 | { | |
1092 | struct se_wwn *wwn = container_of(to_config_group(item), | |
1093 | struct se_wwn, wwn_group); | |
1094 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
1095 | ||
ef0caf8d | 1096 | tf->tf_ops->fabric_drop_wwn(wwn); |
1f6fe7cb NB |
1097 | } |
1098 | ||
1099 | static struct configfs_item_operations target_fabric_tpg_item_ops = { | |
1100 | .release = target_fabric_release_wwn, | |
1101 | }; | |
1102 | ||
c66ac9db NB |
1103 | static struct configfs_group_operations target_fabric_tpg_group_ops = { |
1104 | .make_group = target_fabric_make_tpg, | |
1105 | .drop_item = target_fabric_drop_tpg, | |
1106 | }; | |
1107 | ||
1f6fe7cb NB |
1108 | TF_CIT_SETUP(tpg, &target_fabric_tpg_item_ops, &target_fabric_tpg_group_ops, |
1109 | NULL); | |
c66ac9db NB |
1110 | |
1111 | /* End of tfc_tpg_cit */ | |
1112 | ||
12d23384 NB |
1113 | /* Start of tfc_wwn_fabric_stats_cit */ |
1114 | /* | |
1115 | * This is used as a placeholder for struct se_wwn->fabric_stat_group | |
1116 | * to allow fabrics access to ->fabric_stat_group->default_groups[] | |
1117 | */ | |
1118 | TF_CIT_SETUP(wwn_fabric_stats, NULL, NULL, NULL); | |
1119 | ||
1120 | /* End of tfc_wwn_fabric_stats_cit */ | |
1121 | ||
c66ac9db NB |
1122 | /* Start of tfc_wwn_cit */ |
1123 | ||
1124 | static struct config_group *target_fabric_make_wwn( | |
1125 | struct config_group *group, | |
1126 | const char *name) | |
1127 | { | |
1128 | struct target_fabric_configfs *tf = container_of(group, | |
1129 | struct target_fabric_configfs, tf_group); | |
1130 | struct se_wwn *wwn; | |
1131 | ||
ef0caf8d | 1132 | if (!tf->tf_ops->fabric_make_wwn) { |
6708bb27 | 1133 | pr_err("tf->tf_ops.fabric_make_wwn is NULL\n"); |
c66ac9db NB |
1134 | return ERR_PTR(-ENOSYS); |
1135 | } | |
1136 | ||
ef0caf8d | 1137 | wwn = tf->tf_ops->fabric_make_wwn(tf, group, name); |
6708bb27 | 1138 | if (!wwn || IS_ERR(wwn)) |
c66ac9db NB |
1139 | return ERR_PTR(-EINVAL); |
1140 | ||
1141 | wwn->wwn_tf = tf; | |
12d23384 NB |
1142 | /* |
1143 | * Setup default groups from pre-allocated wwn->wwn_default_groups | |
1144 | */ | |
1145 | wwn->wwn_group.default_groups = wwn->wwn_default_groups; | |
1146 | wwn->wwn_group.default_groups[0] = &wwn->fabric_stat_group; | |
1147 | wwn->wwn_group.default_groups[1] = NULL; | |
1148 | ||
968ebe75 | 1149 | config_group_init_type_name(&wwn->wwn_group, name, &tf->tf_tpg_cit); |
12d23384 | 1150 | config_group_init_type_name(&wwn->fabric_stat_group, "fabric_statistics", |
968ebe75 | 1151 | &tf->tf_wwn_fabric_stats_cit); |
c66ac9db NB |
1152 | |
1153 | return &wwn->wwn_group; | |
1154 | } | |
1155 | ||
1156 | static void target_fabric_drop_wwn( | |
1157 | struct config_group *group, | |
1158 | struct config_item *item) | |
1159 | { | |
12d23384 NB |
1160 | struct se_wwn *wwn = container_of(to_config_group(item), |
1161 | struct se_wwn, wwn_group); | |
1162 | struct config_item *df_item; | |
1163 | struct config_group *cg = &wwn->wwn_group; | |
1164 | int i; | |
1165 | ||
1166 | for (i = 0; cg->default_groups[i]; i++) { | |
1167 | df_item = &cg->default_groups[i]->cg_item; | |
1168 | cg->default_groups[i] = NULL; | |
1169 | config_item_put(df_item); | |
1170 | } | |
1171 | ||
c66ac9db | 1172 | config_item_put(item); |
c66ac9db NB |
1173 | } |
1174 | ||
1175 | static struct configfs_group_operations target_fabric_wwn_group_ops = { | |
1176 | .make_group = target_fabric_make_wwn, | |
1177 | .drop_item = target_fabric_drop_wwn, | |
1178 | }; | |
1179 | /* | |
1180 | * For use with TF_WWN_ATTR() and TF_WWN_ATTR_RO() | |
1181 | */ | |
1182 | CONFIGFS_EATTR_OPS(target_fabric_wwn, target_fabric_configfs, tf_group); | |
1183 | ||
1184 | static struct configfs_item_operations target_fabric_wwn_item_ops = { | |
1185 | .show_attribute = target_fabric_wwn_attr_show, | |
1186 | .store_attribute = target_fabric_wwn_attr_store, | |
1187 | }; | |
1188 | ||
9ac8928e | 1189 | TF_CIT_SETUP_DRV(wwn, &target_fabric_wwn_item_ops, &target_fabric_wwn_group_ops); |
c66ac9db NB |
1190 | |
1191 | /* End of tfc_wwn_cit */ | |
1192 | ||
1193 | /* Start of tfc_discovery_cit */ | |
1194 | ||
1195 | CONFIGFS_EATTR_OPS(target_fabric_discovery, target_fabric_configfs, | |
1196 | tf_disc_group); | |
1197 | ||
1198 | static struct configfs_item_operations target_fabric_discovery_item_ops = { | |
1199 | .show_attribute = target_fabric_discovery_attr_show, | |
1200 | .store_attribute = target_fabric_discovery_attr_store, | |
1201 | }; | |
1202 | ||
9ac8928e | 1203 | TF_CIT_SETUP_DRV(discovery, &target_fabric_discovery_item_ops, NULL); |
c66ac9db NB |
1204 | |
1205 | /* End of tfc_discovery_cit */ | |
1206 | ||
1207 | int target_fabric_setup_cits(struct target_fabric_configfs *tf) | |
1208 | { | |
1209 | target_fabric_setup_discovery_cit(tf); | |
1210 | target_fabric_setup_wwn_cit(tf); | |
12d23384 | 1211 | target_fabric_setup_wwn_fabric_stats_cit(tf); |
c66ac9db NB |
1212 | target_fabric_setup_tpg_cit(tf); |
1213 | target_fabric_setup_tpg_base_cit(tf); | |
1214 | target_fabric_setup_tpg_port_cit(tf); | |
12d23384 | 1215 | target_fabric_setup_tpg_port_stat_cit(tf); |
c66ac9db NB |
1216 | target_fabric_setup_tpg_lun_cit(tf); |
1217 | target_fabric_setup_tpg_np_cit(tf); | |
1218 | target_fabric_setup_tpg_np_base_cit(tf); | |
1219 | target_fabric_setup_tpg_attrib_cit(tf); | |
e4b512e7 | 1220 | target_fabric_setup_tpg_auth_cit(tf); |
c66ac9db NB |
1221 | target_fabric_setup_tpg_param_cit(tf); |
1222 | target_fabric_setup_tpg_nacl_cit(tf); | |
1223 | target_fabric_setup_tpg_nacl_base_cit(tf); | |
1224 | target_fabric_setup_tpg_nacl_attrib_cit(tf); | |
1225 | target_fabric_setup_tpg_nacl_auth_cit(tf); | |
1226 | target_fabric_setup_tpg_nacl_param_cit(tf); | |
12d23384 | 1227 | target_fabric_setup_tpg_nacl_stat_cit(tf); |
c66ac9db | 1228 | target_fabric_setup_tpg_mappedlun_cit(tf); |
12d23384 | 1229 | target_fabric_setup_tpg_mappedlun_stat_cit(tf); |
c66ac9db NB |
1230 | |
1231 | return 0; | |
1232 | } |