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; | |
6bb82612 | 84 | int 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 | */ | |
adf653f9 CH |
94 | if (!lun->lun_se_dev) { |
95 | pr_err("Source se_lun->lun_se_dev does not exist\n"); | |
c66ac9db NB |
96 | return -EINVAL; |
97 | } | |
adf653f9 | 98 | se_tpg = lun->lun_tpg; |
c66ac9db NB |
99 | |
100 | nacl_ci = &lun_acl_ci->ci_parent->ci_group->cg_item; | |
101 | tpg_ci = &nacl_ci->ci_group->cg_item; | |
102 | wwn_ci = &tpg_ci->ci_group->cg_item; | |
103 | tpg_ci_s = &lun_ci->ci_parent->ci_group->cg_item; | |
104 | wwn_ci_s = &tpg_ci_s->ci_group->cg_item; | |
105 | /* | |
106 | * Make sure the SymLink is going to the same $FABRIC/$WWN/tpgt_$TPGT | |
107 | */ | |
108 | if (strcmp(config_item_name(wwn_ci), config_item_name(wwn_ci_s))) { | |
6708bb27 | 109 | pr_err("Illegal Initiator ACL SymLink outside of %s\n", |
c66ac9db NB |
110 | config_item_name(wwn_ci)); |
111 | return -EINVAL; | |
112 | } | |
113 | if (strcmp(config_item_name(tpg_ci), config_item_name(tpg_ci_s))) { | |
6708bb27 | 114 | pr_err("Illegal Initiator ACL Symlink outside of %s" |
c66ac9db NB |
115 | " TPGT: %s\n", config_item_name(wwn_ci), |
116 | config_item_name(tpg_ci)); | |
117 | return -EINVAL; | |
118 | } | |
119 | /* | |
120 | * If this struct se_node_acl was dynamically generated with | |
121 | * tpg_1/attrib/generate_node_acls=1, use the existing deve->lun_flags, | |
122 | * which be will write protected (READ-ONLY) when | |
123 | * tpg_1/attrib/demo_mode_write_protect=1 | |
124 | */ | |
29a05dee NB |
125 | rcu_read_lock(); |
126 | deve = target_nacl_find_deve(lacl->se_lun_nacl, lacl->mapped_lun); | |
127 | if (deve) | |
c66ac9db NB |
128 | lun_access = deve->lun_flags; |
129 | else | |
130 | lun_access = | |
e3d6f909 | 131 | (se_tpg->se_tpg_tfo->tpg_check_prod_mode_write_protect( |
c66ac9db NB |
132 | se_tpg)) ? TRANSPORT_LUNFLAGS_READ_ONLY : |
133 | TRANSPORT_LUNFLAGS_READ_WRITE; | |
29a05dee | 134 | rcu_read_unlock(); |
c66ac9db NB |
135 | /* |
136 | * Determine the actual mapped LUN value user wants.. | |
137 | * | |
138 | * This value is what the SCSI Initiator actually sees the | |
6bb82612 | 139 | * $FABRIC/$WWPN/$TPGT/lun/lun_* as on their SCSI Initiator Ports. |
c66ac9db | 140 | */ |
6bb82612 | 141 | return core_dev_add_initiator_node_lun_acl(se_tpg, lacl, lun, lun_access); |
c66ac9db NB |
142 | } |
143 | ||
144 | static int target_fabric_mappedlun_unlink( | |
145 | struct config_item *lun_acl_ci, | |
146 | struct config_item *lun_ci) | |
147 | { | |
c66ac9db NB |
148 | struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci), |
149 | struct se_lun_acl, se_lun_group); | |
29a05dee NB |
150 | struct se_lun *lun = container_of(to_config_group(lun_ci), |
151 | struct se_lun, lun_group); | |
c66ac9db | 152 | |
adf653f9 | 153 | return core_dev_del_initiator_node_lun_acl(lun, lacl); |
c66ac9db NB |
154 | } |
155 | ||
156 | CONFIGFS_EATTR_STRUCT(target_fabric_mappedlun, se_lun_acl); | |
157 | #define TCM_MAPPEDLUN_ATTR(_name, _mode) \ | |
158 | static struct target_fabric_mappedlun_attribute target_fabric_mappedlun_##_name = \ | |
159 | __CONFIGFS_EATTR(_name, _mode, \ | |
160 | target_fabric_mappedlun_show_##_name, \ | |
161 | target_fabric_mappedlun_store_##_name); | |
162 | ||
163 | static ssize_t target_fabric_mappedlun_show_write_protect( | |
164 | struct se_lun_acl *lacl, | |
165 | char *page) | |
166 | { | |
167 | struct se_node_acl *se_nacl = lacl->se_lun_nacl; | |
168 | struct se_dev_entry *deve; | |
29a05dee NB |
169 | ssize_t len = 0; |
170 | ||
171 | rcu_read_lock(); | |
172 | deve = target_nacl_find_deve(se_nacl, lacl->mapped_lun); | |
173 | if (deve) { | |
174 | len = sprintf(page, "%d\n", | |
175 | (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY) ? 1 : 0); | |
176 | } | |
177 | rcu_read_unlock(); | |
c66ac9db NB |
178 | |
179 | return len; | |
180 | } | |
181 | ||
182 | static ssize_t target_fabric_mappedlun_store_write_protect( | |
183 | struct se_lun_acl *lacl, | |
184 | const char *page, | |
185 | size_t count) | |
186 | { | |
187 | struct se_node_acl *se_nacl = lacl->se_lun_nacl; | |
188 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
189 | unsigned long op; | |
57103d7f | 190 | int ret; |
c66ac9db | 191 | |
57103d7f JH |
192 | ret = kstrtoul(page, 0, &op); |
193 | if (ret) | |
194 | return ret; | |
c66ac9db NB |
195 | |
196 | if ((op != 1) && (op != 0)) | |
197 | return -EINVAL; | |
198 | ||
199 | core_update_device_list_access(lacl->mapped_lun, (op) ? | |
200 | TRANSPORT_LUNFLAGS_READ_ONLY : | |
201 | TRANSPORT_LUNFLAGS_READ_WRITE, | |
202 | lacl->se_lun_nacl); | |
203 | ||
6708bb27 | 204 | pr_debug("%s_ConfigFS: Changed Initiator ACL: %s" |
c66ac9db | 205 | " Mapped LUN: %u Write Protect bit to %s\n", |
e3d6f909 | 206 | se_tpg->se_tpg_tfo->get_fabric_name(), |
c66ac9db NB |
207 | lacl->initiatorname, lacl->mapped_lun, (op) ? "ON" : "OFF"); |
208 | ||
209 | return count; | |
210 | ||
211 | } | |
212 | ||
213 | TCM_MAPPEDLUN_ATTR(write_protect, S_IRUGO | S_IWUSR); | |
214 | ||
215 | CONFIGFS_EATTR_OPS(target_fabric_mappedlun, se_lun_acl, se_lun_group); | |
216 | ||
1f6fe7cb NB |
217 | static void target_fabric_mappedlun_release(struct config_item *item) |
218 | { | |
219 | struct se_lun_acl *lacl = container_of(to_config_group(item), | |
220 | struct se_lun_acl, se_lun_group); | |
221 | struct se_portal_group *se_tpg = lacl->se_lun_nacl->se_tpg; | |
222 | ||
223 | core_dev_free_initiator_node_lun_acl(se_tpg, lacl); | |
224 | } | |
225 | ||
c66ac9db NB |
226 | static struct configfs_attribute *target_fabric_mappedlun_attrs[] = { |
227 | &target_fabric_mappedlun_write_protect.attr, | |
228 | NULL, | |
229 | }; | |
230 | ||
231 | static struct configfs_item_operations target_fabric_mappedlun_item_ops = { | |
1f6fe7cb | 232 | .release = target_fabric_mappedlun_release, |
c66ac9db NB |
233 | .show_attribute = target_fabric_mappedlun_attr_show, |
234 | .store_attribute = target_fabric_mappedlun_attr_store, | |
235 | .allow_link = target_fabric_mappedlun_link, | |
236 | .drop_link = target_fabric_mappedlun_unlink, | |
237 | }; | |
238 | ||
239 | TF_CIT_SETUP(tpg_mappedlun, &target_fabric_mappedlun_item_ops, NULL, | |
240 | target_fabric_mappedlun_attrs); | |
241 | ||
242 | /* End of tfc_tpg_mappedlun_cit */ | |
243 | ||
12d23384 NB |
244 | /* Start of tfc_tpg_mappedlun_port_cit */ |
245 | ||
246 | static struct config_group *target_core_mappedlun_stat_mkdir( | |
247 | struct config_group *group, | |
248 | const char *name) | |
249 | { | |
250 | return ERR_PTR(-ENOSYS); | |
251 | } | |
252 | ||
253 | static void target_core_mappedlun_stat_rmdir( | |
254 | struct config_group *group, | |
255 | struct config_item *item) | |
256 | { | |
257 | return; | |
258 | } | |
259 | ||
260 | static struct configfs_group_operations target_fabric_mappedlun_stat_group_ops = { | |
261 | .make_group = target_core_mappedlun_stat_mkdir, | |
262 | .drop_item = target_core_mappedlun_stat_rmdir, | |
263 | }; | |
264 | ||
265 | TF_CIT_SETUP(tpg_mappedlun_stat, NULL, &target_fabric_mappedlun_stat_group_ops, | |
266 | NULL); | |
267 | ||
268 | /* End of tfc_tpg_mappedlun_port_cit */ | |
269 | ||
c66ac9db NB |
270 | /* Start of tfc_tpg_nacl_attrib_cit */ |
271 | ||
272 | CONFIGFS_EATTR_OPS(target_fabric_nacl_attrib, se_node_acl, acl_attrib_group); | |
273 | ||
274 | static struct configfs_item_operations target_fabric_nacl_attrib_item_ops = { | |
275 | .show_attribute = target_fabric_nacl_attrib_attr_show, | |
276 | .store_attribute = target_fabric_nacl_attrib_attr_store, | |
277 | }; | |
278 | ||
9ac8928e | 279 | TF_CIT_SETUP_DRV(tpg_nacl_attrib, &target_fabric_nacl_attrib_item_ops, NULL); |
c66ac9db NB |
280 | |
281 | /* End of tfc_tpg_nacl_attrib_cit */ | |
282 | ||
283 | /* Start of tfc_tpg_nacl_auth_cit */ | |
284 | ||
285 | CONFIGFS_EATTR_OPS(target_fabric_nacl_auth, se_node_acl, acl_auth_group); | |
286 | ||
287 | static struct configfs_item_operations target_fabric_nacl_auth_item_ops = { | |
288 | .show_attribute = target_fabric_nacl_auth_attr_show, | |
289 | .store_attribute = target_fabric_nacl_auth_attr_store, | |
290 | }; | |
291 | ||
9ac8928e | 292 | TF_CIT_SETUP_DRV(tpg_nacl_auth, &target_fabric_nacl_auth_item_ops, NULL); |
c66ac9db NB |
293 | |
294 | /* End of tfc_tpg_nacl_auth_cit */ | |
295 | ||
296 | /* Start of tfc_tpg_nacl_param_cit */ | |
297 | ||
298 | CONFIGFS_EATTR_OPS(target_fabric_nacl_param, se_node_acl, acl_param_group); | |
299 | ||
300 | static struct configfs_item_operations target_fabric_nacl_param_item_ops = { | |
301 | .show_attribute = target_fabric_nacl_param_attr_show, | |
302 | .store_attribute = target_fabric_nacl_param_attr_store, | |
303 | }; | |
304 | ||
9ac8928e | 305 | TF_CIT_SETUP_DRV(tpg_nacl_param, &target_fabric_nacl_param_item_ops, NULL); |
c66ac9db NB |
306 | |
307 | /* End of tfc_tpg_nacl_param_cit */ | |
308 | ||
309 | /* Start of tfc_tpg_nacl_base_cit */ | |
310 | ||
311 | CONFIGFS_EATTR_OPS(target_fabric_nacl_base, se_node_acl, acl_group); | |
312 | ||
313 | static struct config_group *target_fabric_make_mappedlun( | |
314 | struct config_group *group, | |
315 | const char *name) | |
316 | { | |
317 | struct se_node_acl *se_nacl = container_of(group, | |
318 | struct se_node_acl, acl_group); | |
319 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
320 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
da0abaee | 321 | struct se_lun_acl *lacl = NULL; |
c66ac9db | 322 | struct config_item *acl_ci; |
12d23384 | 323 | struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; |
c66ac9db NB |
324 | char *buf; |
325 | unsigned long mapped_lun; | |
326 | int ret = 0; | |
327 | ||
328 | acl_ci = &group->cg_item; | |
6708bb27 AG |
329 | if (!acl_ci) { |
330 | pr_err("Unable to locatel acl_ci\n"); | |
c66ac9db NB |
331 | return NULL; |
332 | } | |
333 | ||
334 | buf = kzalloc(strlen(name) + 1, GFP_KERNEL); | |
6708bb27 AG |
335 | if (!buf) { |
336 | pr_err("Unable to allocate memory for name buf\n"); | |
c66ac9db NB |
337 | return ERR_PTR(-ENOMEM); |
338 | } | |
339 | snprintf(buf, strlen(name) + 1, "%s", name); | |
340 | /* | |
341 | * Make sure user is creating iscsi/$IQN/$TPGT/acls/$INITIATOR/lun_$ID. | |
342 | */ | |
343 | if (strstr(buf, "lun_") != buf) { | |
6708bb27 | 344 | pr_err("Unable to locate \"lun_\" from buf: %s" |
c66ac9db NB |
345 | " name: %s\n", buf, name); |
346 | ret = -EINVAL; | |
347 | goto out; | |
348 | } | |
349 | /* | |
350 | * Determine the Mapped LUN value. This is what the SCSI Initiator | |
351 | * Port will actually see. | |
352 | */ | |
57103d7f JH |
353 | ret = kstrtoul(buf + 4, 0, &mapped_lun); |
354 | if (ret) | |
355 | goto out; | |
356 | if (mapped_lun > UINT_MAX) { | |
c66ac9db NB |
357 | ret = -EINVAL; |
358 | goto out; | |
359 | } | |
fbbf8555 NB |
360 | if (mapped_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) { |
361 | pr_err("Mapped LUN: %lu exceeds TRANSPORT_MAX_LUNS_PER_TPG" | |
362 | "-1: %u for Target Portal Group: %u\n", mapped_lun, | |
363 | TRANSPORT_MAX_LUNS_PER_TPG-1, | |
364 | se_tpg->se_tpg_tfo->tpg_get_tag(se_tpg)); | |
365 | ret = -EINVAL; | |
366 | goto out; | |
367 | } | |
c66ac9db | 368 | |
fcf29481 NB |
369 | lacl = core_dev_init_initiator_node_lun_acl(se_tpg, se_nacl, |
370 | mapped_lun, &ret); | |
6708bb27 | 371 | if (!lacl) { |
12d23384 | 372 | ret = -EINVAL; |
c66ac9db | 373 | goto out; |
12d23384 NB |
374 | } |
375 | ||
376 | lacl_cg = &lacl->se_lun_group; | |
13f6a914 | 377 | lacl_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, |
12d23384 NB |
378 | GFP_KERNEL); |
379 | if (!lacl_cg->default_groups) { | |
6708bb27 | 380 | pr_err("Unable to allocate lacl_cg->default_groups\n"); |
12d23384 NB |
381 | ret = -ENOMEM; |
382 | goto out; | |
383 | } | |
c66ac9db NB |
384 | |
385 | config_group_init_type_name(&lacl->se_lun_group, name, | |
968ebe75 | 386 | &tf->tf_tpg_mappedlun_cit); |
12d23384 | 387 | config_group_init_type_name(&lacl->ml_stat_grps.stat_group, |
968ebe75 | 388 | "statistics", &tf->tf_tpg_mappedlun_stat_cit); |
12d23384 NB |
389 | lacl_cg->default_groups[0] = &lacl->ml_stat_grps.stat_group; |
390 | lacl_cg->default_groups[1] = NULL; | |
391 | ||
e3d6f909 | 392 | ml_stat_grp = &lacl->ml_stat_grps.stat_group; |
13f6a914 | 393 | ml_stat_grp->default_groups = kmalloc(sizeof(struct config_group *) * 3, |
12d23384 NB |
394 | GFP_KERNEL); |
395 | if (!ml_stat_grp->default_groups) { | |
6708bb27 | 396 | pr_err("Unable to allocate ml_stat_grp->default_groups\n"); |
12d23384 NB |
397 | ret = -ENOMEM; |
398 | goto out; | |
399 | } | |
400 | target_stat_setup_mappedlun_default_groups(lacl); | |
c66ac9db NB |
401 | |
402 | kfree(buf); | |
403 | return &lacl->se_lun_group; | |
404 | out: | |
12d23384 NB |
405 | if (lacl_cg) |
406 | kfree(lacl_cg->default_groups); | |
da0abaee | 407 | kfree(lacl); |
c66ac9db NB |
408 | kfree(buf); |
409 | return ERR_PTR(ret); | |
410 | } | |
411 | ||
412 | static void target_fabric_drop_mappedlun( | |
413 | struct config_group *group, | |
414 | struct config_item *item) | |
415 | { | |
12d23384 NB |
416 | struct se_lun_acl *lacl = container_of(to_config_group(item), |
417 | struct se_lun_acl, se_lun_group); | |
418 | struct config_item *df_item; | |
419 | struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; | |
420 | int i; | |
421 | ||
e3d6f909 | 422 | ml_stat_grp = &lacl->ml_stat_grps.stat_group; |
12d23384 NB |
423 | for (i = 0; ml_stat_grp->default_groups[i]; i++) { |
424 | df_item = &ml_stat_grp->default_groups[i]->cg_item; | |
425 | ml_stat_grp->default_groups[i] = NULL; | |
426 | config_item_put(df_item); | |
427 | } | |
428 | kfree(ml_stat_grp->default_groups); | |
429 | ||
430 | lacl_cg = &lacl->se_lun_group; | |
431 | for (i = 0; lacl_cg->default_groups[i]; i++) { | |
432 | df_item = &lacl_cg->default_groups[i]->cg_item; | |
433 | lacl_cg->default_groups[i] = NULL; | |
434 | config_item_put(df_item); | |
435 | } | |
436 | kfree(lacl_cg->default_groups); | |
437 | ||
c66ac9db | 438 | config_item_put(item); |
1f6fe7cb NB |
439 | } |
440 | ||
441 | static void target_fabric_nacl_base_release(struct config_item *item) | |
442 | { | |
443 | struct se_node_acl *se_nacl = container_of(to_config_group(item), | |
444 | struct se_node_acl, acl_group); | |
c7d6a803 | 445 | struct target_fabric_configfs *tf = se_nacl->se_tpg->se_tpg_wwn->wwn_tf; |
1f6fe7cb | 446 | |
ef0caf8d CH |
447 | if (tf->tf_ops->fabric_cleanup_nodeacl) |
448 | tf->tf_ops->fabric_cleanup_nodeacl(se_nacl); | |
c7d6a803 | 449 | core_tpg_del_initiator_node_acl(se_nacl); |
c66ac9db NB |
450 | } |
451 | ||
452 | static struct configfs_item_operations target_fabric_nacl_base_item_ops = { | |
1f6fe7cb | 453 | .release = target_fabric_nacl_base_release, |
c66ac9db NB |
454 | .show_attribute = target_fabric_nacl_base_attr_show, |
455 | .store_attribute = target_fabric_nacl_base_attr_store, | |
456 | }; | |
457 | ||
458 | static struct configfs_group_operations target_fabric_nacl_base_group_ops = { | |
459 | .make_group = target_fabric_make_mappedlun, | |
460 | .drop_item = target_fabric_drop_mappedlun, | |
461 | }; | |
462 | ||
9ac8928e CH |
463 | TF_CIT_SETUP_DRV(tpg_nacl_base, &target_fabric_nacl_base_item_ops, |
464 | &target_fabric_nacl_base_group_ops); | |
c66ac9db NB |
465 | |
466 | /* End of tfc_tpg_nacl_base_cit */ | |
467 | ||
12d23384 NB |
468 | /* Start of tfc_node_fabric_stats_cit */ |
469 | /* | |
470 | * This is used as a placeholder for struct se_node_acl->acl_fabric_stat_group | |
471 | * to allow fabrics access to ->acl_fabric_stat_group->default_groups[] | |
472 | */ | |
473 | TF_CIT_SETUP(tpg_nacl_stat, NULL, NULL, NULL); | |
474 | ||
475 | /* End of tfc_wwn_fabric_stats_cit */ | |
476 | ||
c66ac9db NB |
477 | /* Start of tfc_tpg_nacl_cit */ |
478 | ||
479 | static struct config_group *target_fabric_make_nodeacl( | |
480 | struct config_group *group, | |
481 | const char *name) | |
482 | { | |
483 | struct se_portal_group *se_tpg = container_of(group, | |
484 | struct se_portal_group, tpg_acl_group); | |
485 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
486 | struct se_node_acl *se_nacl; | |
487 | struct config_group *nacl_cg; | |
488 | ||
c7d6a803 | 489 | se_nacl = core_tpg_add_initiator_node_acl(se_tpg, name); |
c66ac9db | 490 | if (IS_ERR(se_nacl)) |
e1750ba2 | 491 | return ERR_CAST(se_nacl); |
c66ac9db | 492 | |
ef0caf8d CH |
493 | if (tf->tf_ops->fabric_init_nodeacl) { |
494 | int ret = tf->tf_ops->fabric_init_nodeacl(se_nacl, name); | |
c7d6a803 CH |
495 | if (ret) { |
496 | core_tpg_del_initiator_node_acl(se_nacl); | |
497 | return ERR_PTR(ret); | |
498 | } | |
499 | } | |
500 | ||
c66ac9db NB |
501 | nacl_cg = &se_nacl->acl_group; |
502 | nacl_cg->default_groups = se_nacl->acl_default_groups; | |
503 | nacl_cg->default_groups[0] = &se_nacl->acl_attrib_group; | |
504 | nacl_cg->default_groups[1] = &se_nacl->acl_auth_group; | |
505 | nacl_cg->default_groups[2] = &se_nacl->acl_param_group; | |
12d23384 NB |
506 | nacl_cg->default_groups[3] = &se_nacl->acl_fabric_stat_group; |
507 | nacl_cg->default_groups[4] = NULL; | |
c66ac9db NB |
508 | |
509 | config_group_init_type_name(&se_nacl->acl_group, name, | |
968ebe75 | 510 | &tf->tf_tpg_nacl_base_cit); |
c66ac9db | 511 | config_group_init_type_name(&se_nacl->acl_attrib_group, "attrib", |
968ebe75 | 512 | &tf->tf_tpg_nacl_attrib_cit); |
c66ac9db | 513 | config_group_init_type_name(&se_nacl->acl_auth_group, "auth", |
968ebe75 | 514 | &tf->tf_tpg_nacl_auth_cit); |
c66ac9db | 515 | config_group_init_type_name(&se_nacl->acl_param_group, "param", |
968ebe75 | 516 | &tf->tf_tpg_nacl_param_cit); |
12d23384 | 517 | config_group_init_type_name(&se_nacl->acl_fabric_stat_group, |
968ebe75 | 518 | "fabric_statistics", &tf->tf_tpg_nacl_stat_cit); |
c66ac9db NB |
519 | |
520 | return &se_nacl->acl_group; | |
521 | } | |
522 | ||
523 | static void target_fabric_drop_nodeacl( | |
524 | struct config_group *group, | |
525 | struct config_item *item) | |
526 | { | |
c66ac9db NB |
527 | struct se_node_acl *se_nacl = container_of(to_config_group(item), |
528 | struct se_node_acl, acl_group); | |
529 | struct config_item *df_item; | |
530 | struct config_group *nacl_cg; | |
531 | int i; | |
532 | ||
533 | nacl_cg = &se_nacl->acl_group; | |
534 | for (i = 0; nacl_cg->default_groups[i]; i++) { | |
535 | df_item = &nacl_cg->default_groups[i]->cg_item; | |
536 | nacl_cg->default_groups[i] = NULL; | |
537 | config_item_put(df_item); | |
538 | } | |
1f6fe7cb NB |
539 | /* |
540 | * struct se_node_acl free is done in target_fabric_nacl_base_release() | |
541 | */ | |
c66ac9db | 542 | config_item_put(item); |
c66ac9db NB |
543 | } |
544 | ||
545 | static struct configfs_group_operations target_fabric_nacl_group_ops = { | |
546 | .make_group = target_fabric_make_nodeacl, | |
547 | .drop_item = target_fabric_drop_nodeacl, | |
548 | }; | |
549 | ||
550 | TF_CIT_SETUP(tpg_nacl, NULL, &target_fabric_nacl_group_ops, NULL); | |
551 | ||
552 | /* End of tfc_tpg_nacl_cit */ | |
553 | ||
554 | /* Start of tfc_tpg_np_base_cit */ | |
555 | ||
556 | CONFIGFS_EATTR_OPS(target_fabric_np_base, se_tpg_np, tpg_np_group); | |
557 | ||
1f6fe7cb NB |
558 | static void target_fabric_np_base_release(struct config_item *item) |
559 | { | |
560 | struct se_tpg_np *se_tpg_np = container_of(to_config_group(item), | |
561 | struct se_tpg_np, tpg_np_group); | |
562 | struct se_portal_group *se_tpg = se_tpg_np->tpg_np_parent; | |
563 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
564 | ||
ef0caf8d | 565 | tf->tf_ops->fabric_drop_np(se_tpg_np); |
1f6fe7cb NB |
566 | } |
567 | ||
c66ac9db | 568 | static struct configfs_item_operations target_fabric_np_base_item_ops = { |
1f6fe7cb | 569 | .release = target_fabric_np_base_release, |
c66ac9db NB |
570 | .show_attribute = target_fabric_np_base_attr_show, |
571 | .store_attribute = target_fabric_np_base_attr_store, | |
572 | }; | |
573 | ||
9ac8928e | 574 | TF_CIT_SETUP_DRV(tpg_np_base, &target_fabric_np_base_item_ops, NULL); |
c66ac9db NB |
575 | |
576 | /* End of tfc_tpg_np_base_cit */ | |
577 | ||
578 | /* Start of tfc_tpg_np_cit */ | |
579 | ||
580 | static struct config_group *target_fabric_make_np( | |
581 | struct config_group *group, | |
582 | const char *name) | |
583 | { | |
584 | struct se_portal_group *se_tpg = container_of(group, | |
585 | struct se_portal_group, tpg_np_group); | |
586 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
587 | struct se_tpg_np *se_tpg_np; | |
588 | ||
ef0caf8d | 589 | if (!tf->tf_ops->fabric_make_np) { |
6708bb27 | 590 | pr_err("tf->tf_ops.fabric_make_np is NULL\n"); |
c66ac9db NB |
591 | return ERR_PTR(-ENOSYS); |
592 | } | |
593 | ||
ef0caf8d | 594 | se_tpg_np = tf->tf_ops->fabric_make_np(se_tpg, group, name); |
6708bb27 | 595 | if (!se_tpg_np || IS_ERR(se_tpg_np)) |
c66ac9db NB |
596 | return ERR_PTR(-EINVAL); |
597 | ||
1f6fe7cb | 598 | se_tpg_np->tpg_np_parent = se_tpg; |
c66ac9db | 599 | config_group_init_type_name(&se_tpg_np->tpg_np_group, name, |
968ebe75 | 600 | &tf->tf_tpg_np_base_cit); |
c66ac9db NB |
601 | |
602 | return &se_tpg_np->tpg_np_group; | |
603 | } | |
604 | ||
605 | static void target_fabric_drop_np( | |
606 | struct config_group *group, | |
607 | struct config_item *item) | |
608 | { | |
1f6fe7cb NB |
609 | /* |
610 | * struct se_tpg_np is released via target_fabric_np_base_release() | |
611 | */ | |
c66ac9db | 612 | config_item_put(item); |
c66ac9db NB |
613 | } |
614 | ||
615 | static struct configfs_group_operations target_fabric_np_group_ops = { | |
616 | .make_group = &target_fabric_make_np, | |
617 | .drop_item = &target_fabric_drop_np, | |
618 | }; | |
619 | ||
620 | TF_CIT_SETUP(tpg_np, NULL, &target_fabric_np_group_ops, NULL); | |
621 | ||
622 | /* End of tfc_tpg_np_cit */ | |
623 | ||
624 | /* Start of tfc_tpg_port_cit */ | |
625 | ||
626 | CONFIGFS_EATTR_STRUCT(target_fabric_port, se_lun); | |
627 | #define TCM_PORT_ATTR(_name, _mode) \ | |
628 | static struct target_fabric_port_attribute target_fabric_port_##_name = \ | |
629 | __CONFIGFS_EATTR(_name, _mode, \ | |
630 | target_fabric_port_show_attr_##_name, \ | |
631 | target_fabric_port_store_attr_##_name); | |
632 | ||
633 | #define TCM_PORT_ATTOR_RO(_name) \ | |
634 | __CONFIGFS_EATTR_RO(_name, \ | |
635 | target_fabric_port_show_attr_##_name); | |
636 | ||
637 | /* | |
638 | * alua_tg_pt_gp | |
639 | */ | |
640 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_gp( | |
641 | struct se_lun *lun, | |
642 | char *page) | |
643 | { | |
adf653f9 | 644 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
645 | return -ENODEV; |
646 | ||
adf653f9 | 647 | return core_alua_show_tg_pt_gp_info(lun, page); |
c66ac9db NB |
648 | } |
649 | ||
650 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_gp( | |
651 | struct se_lun *lun, | |
652 | const char *page, | |
653 | size_t count) | |
654 | { | |
adf653f9 | 655 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
656 | return -ENODEV; |
657 | ||
adf653f9 | 658 | return core_alua_store_tg_pt_gp_info(lun, page, count); |
c66ac9db NB |
659 | } |
660 | ||
661 | TCM_PORT_ATTR(alua_tg_pt_gp, S_IRUGO | S_IWUSR); | |
662 | ||
663 | /* | |
664 | * alua_tg_pt_offline | |
665 | */ | |
666 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_offline( | |
667 | struct se_lun *lun, | |
668 | char *page) | |
669 | { | |
adf653f9 | 670 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
671 | return -ENODEV; |
672 | ||
673 | return core_alua_show_offline_bit(lun, page); | |
674 | } | |
675 | ||
676 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_offline( | |
677 | struct se_lun *lun, | |
678 | const char *page, | |
679 | size_t count) | |
680 | { | |
adf653f9 | 681 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
682 | return -ENODEV; |
683 | ||
684 | return core_alua_store_offline_bit(lun, page, count); | |
685 | } | |
686 | ||
687 | TCM_PORT_ATTR(alua_tg_pt_offline, S_IRUGO | S_IWUSR); | |
688 | ||
689 | /* | |
690 | * alua_tg_pt_status | |
691 | */ | |
692 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_status( | |
693 | struct se_lun *lun, | |
694 | char *page) | |
695 | { | |
adf653f9 | 696 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
697 | return -ENODEV; |
698 | ||
699 | return core_alua_show_secondary_status(lun, page); | |
700 | } | |
701 | ||
702 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_status( | |
703 | struct se_lun *lun, | |
704 | const char *page, | |
705 | size_t count) | |
706 | { | |
adf653f9 | 707 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
708 | return -ENODEV; |
709 | ||
710 | return core_alua_store_secondary_status(lun, page, count); | |
711 | } | |
712 | ||
713 | TCM_PORT_ATTR(alua_tg_pt_status, S_IRUGO | S_IWUSR); | |
714 | ||
715 | /* | |
716 | * alua_tg_pt_write_md | |
717 | */ | |
718 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_write_md( | |
719 | struct se_lun *lun, | |
720 | char *page) | |
721 | { | |
adf653f9 | 722 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
723 | return -ENODEV; |
724 | ||
725 | return core_alua_show_secondary_write_metadata(lun, page); | |
726 | } | |
727 | ||
728 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_write_md( | |
729 | struct se_lun *lun, | |
730 | const char *page, | |
731 | size_t count) | |
732 | { | |
adf653f9 | 733 | if (!lun || !lun->lun_se_dev) |
c66ac9db NB |
734 | return -ENODEV; |
735 | ||
736 | return core_alua_store_secondary_write_metadata(lun, page, count); | |
737 | } | |
738 | ||
739 | TCM_PORT_ATTR(alua_tg_pt_write_md, S_IRUGO | S_IWUSR); | |
740 | ||
741 | ||
742 | static struct configfs_attribute *target_fabric_port_attrs[] = { | |
743 | &target_fabric_port_alua_tg_pt_gp.attr, | |
744 | &target_fabric_port_alua_tg_pt_offline.attr, | |
745 | &target_fabric_port_alua_tg_pt_status.attr, | |
746 | &target_fabric_port_alua_tg_pt_write_md.attr, | |
747 | NULL, | |
748 | }; | |
749 | ||
750 | CONFIGFS_EATTR_OPS(target_fabric_port, se_lun, lun_group); | |
751 | ||
752 | static int target_fabric_port_link( | |
753 | struct config_item *lun_ci, | |
754 | struct config_item *se_dev_ci) | |
755 | { | |
756 | struct config_item *tpg_ci; | |
c66ac9db NB |
757 | struct se_lun *lun = container_of(to_config_group(lun_ci), |
758 | struct se_lun, lun_group); | |
c66ac9db | 759 | struct se_portal_group *se_tpg; |
0fd97ccf CH |
760 | struct se_device *dev = |
761 | container_of(to_config_group(se_dev_ci), struct se_device, dev_group); | |
c66ac9db NB |
762 | struct target_fabric_configfs *tf; |
763 | int ret; | |
764 | ||
0ff87549 NB |
765 | if (dev->dev_link_magic != SE_DEV_LINK_MAGIC) { |
766 | pr_err("Bad dev->dev_link_magic, not a valid se_dev_ci pointer:" | |
767 | " %p to struct se_device: %p\n", se_dev_ci, dev); | |
768 | return -EFAULT; | |
769 | } | |
770 | ||
faa06ab9 NB |
771 | if (!(dev->dev_flags & DF_CONFIGURED)) { |
772 | pr_err("se_device not configured yet, cannot port link\n"); | |
773 | return -ENODEV; | |
774 | } | |
775 | ||
c66ac9db NB |
776 | tpg_ci = &lun_ci->ci_parent->ci_group->cg_item; |
777 | se_tpg = container_of(to_config_group(tpg_ci), | |
778 | struct se_portal_group, tpg_group); | |
779 | tf = se_tpg->se_tpg_wwn->wwn_tf; | |
780 | ||
781 | if (lun->lun_se_dev != NULL) { | |
6708bb27 | 782 | pr_err("Port Symlink already exists\n"); |
c66ac9db NB |
783 | return -EEXIST; |
784 | } | |
785 | ||
6bb82612 NB |
786 | ret = core_dev_add_lun(se_tpg, dev, lun); |
787 | if (ret) { | |
788 | pr_err("core_dev_add_lun() failed: %d\n", ret); | |
c66ac9db NB |
789 | goto out; |
790 | } | |
791 | ||
ef0caf8d | 792 | if (tf->tf_ops->fabric_post_link) { |
c66ac9db NB |
793 | /* |
794 | * Call the optional fabric_post_link() to allow a | |
795 | * fabric module to setup any additional state once | |
796 | * core_dev_add_lun() has been called.. | |
797 | */ | |
ef0caf8d | 798 | tf->tf_ops->fabric_post_link(se_tpg, lun); |
c66ac9db NB |
799 | } |
800 | ||
801 | return 0; | |
802 | out: | |
803 | return ret; | |
804 | } | |
805 | ||
806 | static int target_fabric_port_unlink( | |
807 | struct config_item *lun_ci, | |
808 | struct config_item *se_dev_ci) | |
809 | { | |
810 | struct se_lun *lun = container_of(to_config_group(lun_ci), | |
811 | struct se_lun, lun_group); | |
adf653f9 | 812 | struct se_portal_group *se_tpg = lun->lun_tpg; |
c66ac9db NB |
813 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; |
814 | ||
ef0caf8d | 815 | if (tf->tf_ops->fabric_pre_unlink) { |
c66ac9db NB |
816 | /* |
817 | * Call the optional fabric_pre_unlink() to allow a | |
818 | * fabric module to release any additional stat before | |
819 | * core_dev_del_lun() is called. | |
820 | */ | |
ef0caf8d | 821 | tf->tf_ops->fabric_pre_unlink(se_tpg, lun); |
c66ac9db NB |
822 | } |
823 | ||
cd9d7cba | 824 | core_dev_del_lun(se_tpg, lun); |
c66ac9db NB |
825 | return 0; |
826 | } | |
827 | ||
6bb82612 NB |
828 | static void target_fabric_port_release(struct config_item *item) |
829 | { | |
830 | struct se_lun *lun = container_of(to_config_group(item), | |
831 | struct se_lun, lun_group); | |
832 | ||
833 | kfree_rcu(lun, rcu_head); | |
834 | } | |
835 | ||
c66ac9db NB |
836 | static struct configfs_item_operations target_fabric_port_item_ops = { |
837 | .show_attribute = target_fabric_port_attr_show, | |
838 | .store_attribute = target_fabric_port_attr_store, | |
6bb82612 | 839 | .release = target_fabric_port_release, |
c66ac9db NB |
840 | .allow_link = target_fabric_port_link, |
841 | .drop_link = target_fabric_port_unlink, | |
842 | }; | |
843 | ||
844 | TF_CIT_SETUP(tpg_port, &target_fabric_port_item_ops, NULL, target_fabric_port_attrs); | |
845 | ||
846 | /* End of tfc_tpg_port_cit */ | |
847 | ||
12d23384 NB |
848 | /* Start of tfc_tpg_port_stat_cit */ |
849 | ||
850 | static struct config_group *target_core_port_stat_mkdir( | |
851 | struct config_group *group, | |
852 | const char *name) | |
853 | { | |
854 | return ERR_PTR(-ENOSYS); | |
855 | } | |
856 | ||
857 | static void target_core_port_stat_rmdir( | |
858 | struct config_group *group, | |
859 | struct config_item *item) | |
860 | { | |
861 | return; | |
862 | } | |
863 | ||
864 | static struct configfs_group_operations target_fabric_port_stat_group_ops = { | |
865 | .make_group = target_core_port_stat_mkdir, | |
866 | .drop_item = target_core_port_stat_rmdir, | |
867 | }; | |
868 | ||
869 | TF_CIT_SETUP(tpg_port_stat, NULL, &target_fabric_port_stat_group_ops, NULL); | |
870 | ||
871 | /* End of tfc_tpg_port_stat_cit */ | |
872 | ||
c66ac9db NB |
873 | /* Start of tfc_tpg_lun_cit */ |
874 | ||
875 | static struct config_group *target_fabric_make_lun( | |
876 | struct config_group *group, | |
877 | const char *name) | |
878 | { | |
879 | struct se_lun *lun; | |
880 | struct se_portal_group *se_tpg = container_of(group, | |
881 | struct se_portal_group, tpg_lun_group); | |
882 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
12d23384 | 883 | struct config_group *lun_cg = NULL, *port_stat_grp = NULL; |
c66ac9db | 884 | unsigned long unpacked_lun; |
12d23384 | 885 | int errno; |
c66ac9db NB |
886 | |
887 | if (strstr(name, "lun_") != name) { | |
6708bb27 | 888 | pr_err("Unable to locate \'_\" in" |
c66ac9db NB |
889 | " \"lun_$LUN_NUMBER\"\n"); |
890 | return ERR_PTR(-EINVAL); | |
891 | } | |
57103d7f JH |
892 | errno = kstrtoul(name + 4, 0, &unpacked_lun); |
893 | if (errno) | |
894 | return ERR_PTR(errno); | |
895 | if (unpacked_lun > UINT_MAX) | |
c66ac9db NB |
896 | return ERR_PTR(-EINVAL); |
897 | ||
6bb82612 NB |
898 | lun = core_tpg_alloc_lun(se_tpg, unpacked_lun); |
899 | if (IS_ERR(lun)) | |
900 | return ERR_CAST(lun); | |
c66ac9db | 901 | |
12d23384 | 902 | lun_cg = &lun->lun_group; |
13f6a914 | 903 | lun_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, |
12d23384 NB |
904 | GFP_KERNEL); |
905 | if (!lun_cg->default_groups) { | |
6708bb27 | 906 | pr_err("Unable to allocate lun_cg->default_groups\n"); |
6bb82612 | 907 | kfree(lun); |
12d23384 NB |
908 | return ERR_PTR(-ENOMEM); |
909 | } | |
910 | ||
c66ac9db | 911 | config_group_init_type_name(&lun->lun_group, name, |
968ebe75 | 912 | &tf->tf_tpg_port_cit); |
12d23384 | 913 | config_group_init_type_name(&lun->port_stat_grps.stat_group, |
968ebe75 | 914 | "statistics", &tf->tf_tpg_port_stat_cit); |
12d23384 NB |
915 | lun_cg->default_groups[0] = &lun->port_stat_grps.stat_group; |
916 | lun_cg->default_groups[1] = NULL; | |
917 | ||
e3d6f909 | 918 | port_stat_grp = &lun->port_stat_grps.stat_group; |
ab6dae82 | 919 | port_stat_grp->default_groups = kzalloc(sizeof(struct config_group *) * 4, |
12d23384 NB |
920 | GFP_KERNEL); |
921 | if (!port_stat_grp->default_groups) { | |
6708bb27 | 922 | pr_err("Unable to allocate port_stat_grp->default_groups\n"); |
1481473b | 923 | kfree(lun_cg->default_groups); |
6bb82612 | 924 | kfree(lun); |
1481473b | 925 | return ERR_PTR(-ENOMEM); |
12d23384 NB |
926 | } |
927 | target_stat_setup_port_default_groups(lun); | |
c66ac9db NB |
928 | |
929 | return &lun->lun_group; | |
930 | } | |
931 | ||
932 | static void target_fabric_drop_lun( | |
933 | struct config_group *group, | |
934 | struct config_item *item) | |
935 | { | |
12d23384 NB |
936 | struct se_lun *lun = container_of(to_config_group(item), |
937 | struct se_lun, lun_group); | |
938 | struct config_item *df_item; | |
939 | struct config_group *lun_cg, *port_stat_grp; | |
940 | int i; | |
941 | ||
e3d6f909 | 942 | port_stat_grp = &lun->port_stat_grps.stat_group; |
12d23384 NB |
943 | for (i = 0; port_stat_grp->default_groups[i]; i++) { |
944 | df_item = &port_stat_grp->default_groups[i]->cg_item; | |
945 | port_stat_grp->default_groups[i] = NULL; | |
946 | config_item_put(df_item); | |
947 | } | |
948 | kfree(port_stat_grp->default_groups); | |
949 | ||
950 | lun_cg = &lun->lun_group; | |
951 | for (i = 0; lun_cg->default_groups[i]; i++) { | |
952 | df_item = &lun_cg->default_groups[i]->cg_item; | |
953 | lun_cg->default_groups[i] = NULL; | |
954 | config_item_put(df_item); | |
955 | } | |
956 | kfree(lun_cg->default_groups); | |
957 | ||
c66ac9db NB |
958 | config_item_put(item); |
959 | } | |
960 | ||
961 | static struct configfs_group_operations target_fabric_lun_group_ops = { | |
962 | .make_group = &target_fabric_make_lun, | |
963 | .drop_item = &target_fabric_drop_lun, | |
964 | }; | |
965 | ||
966 | TF_CIT_SETUP(tpg_lun, NULL, &target_fabric_lun_group_ops, NULL); | |
967 | ||
968 | /* End of tfc_tpg_lun_cit */ | |
969 | ||
970 | /* Start of tfc_tpg_attrib_cit */ | |
971 | ||
972 | CONFIGFS_EATTR_OPS(target_fabric_tpg_attrib, se_portal_group, tpg_attrib_group); | |
973 | ||
974 | static struct configfs_item_operations target_fabric_tpg_attrib_item_ops = { | |
975 | .show_attribute = target_fabric_tpg_attrib_attr_show, | |
976 | .store_attribute = target_fabric_tpg_attrib_attr_store, | |
977 | }; | |
978 | ||
9ac8928e | 979 | TF_CIT_SETUP_DRV(tpg_attrib, &target_fabric_tpg_attrib_item_ops, NULL); |
c66ac9db NB |
980 | |
981 | /* End of tfc_tpg_attrib_cit */ | |
982 | ||
e4b512e7 NB |
983 | /* Start of tfc_tpg_auth_cit */ |
984 | ||
985 | CONFIGFS_EATTR_OPS(target_fabric_tpg_auth, se_portal_group, tpg_auth_group); | |
986 | ||
987 | static struct configfs_item_operations target_fabric_tpg_auth_item_ops = { | |
988 | .show_attribute = target_fabric_tpg_auth_attr_show, | |
989 | .store_attribute = target_fabric_tpg_auth_attr_store, | |
990 | }; | |
991 | ||
9ac8928e | 992 | TF_CIT_SETUP_DRV(tpg_auth, &target_fabric_tpg_auth_item_ops, NULL); |
e4b512e7 NB |
993 | |
994 | /* End of tfc_tpg_attrib_cit */ | |
995 | ||
c66ac9db NB |
996 | /* Start of tfc_tpg_param_cit */ |
997 | ||
998 | CONFIGFS_EATTR_OPS(target_fabric_tpg_param, se_portal_group, tpg_param_group); | |
999 | ||
1000 | static struct configfs_item_operations target_fabric_tpg_param_item_ops = { | |
1001 | .show_attribute = target_fabric_tpg_param_attr_show, | |
1002 | .store_attribute = target_fabric_tpg_param_attr_store, | |
1003 | }; | |
1004 | ||
9ac8928e | 1005 | TF_CIT_SETUP_DRV(tpg_param, &target_fabric_tpg_param_item_ops, NULL); |
c66ac9db NB |
1006 | |
1007 | /* End of tfc_tpg_param_cit */ | |
1008 | ||
1009 | /* Start of tfc_tpg_base_cit */ | |
1010 | /* | |
1011 | * For use with TF_TPG_ATTR() and TF_TPG_ATTR_RO() | |
1012 | */ | |
1013 | CONFIGFS_EATTR_OPS(target_fabric_tpg, se_portal_group, tpg_group); | |
1014 | ||
1f6fe7cb NB |
1015 | static void target_fabric_tpg_release(struct config_item *item) |
1016 | { | |
1017 | struct se_portal_group *se_tpg = container_of(to_config_group(item), | |
1018 | struct se_portal_group, tpg_group); | |
1019 | struct se_wwn *wwn = se_tpg->se_tpg_wwn; | |
1020 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
1021 | ||
ef0caf8d | 1022 | tf->tf_ops->fabric_drop_tpg(se_tpg); |
1f6fe7cb NB |
1023 | } |
1024 | ||
c66ac9db | 1025 | static struct configfs_item_operations target_fabric_tpg_base_item_ops = { |
1f6fe7cb | 1026 | .release = target_fabric_tpg_release, |
c66ac9db NB |
1027 | .show_attribute = target_fabric_tpg_attr_show, |
1028 | .store_attribute = target_fabric_tpg_attr_store, | |
1029 | }; | |
1030 | ||
9ac8928e | 1031 | TF_CIT_SETUP_DRV(tpg_base, &target_fabric_tpg_base_item_ops, NULL); |
c66ac9db NB |
1032 | |
1033 | /* End of tfc_tpg_base_cit */ | |
1034 | ||
1035 | /* Start of tfc_tpg_cit */ | |
1036 | ||
1037 | static struct config_group *target_fabric_make_tpg( | |
1038 | struct config_group *group, | |
1039 | const char *name) | |
1040 | { | |
1041 | struct se_wwn *wwn = container_of(group, struct se_wwn, wwn_group); | |
1042 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
1043 | struct se_portal_group *se_tpg; | |
1044 | ||
ef0caf8d CH |
1045 | if (!tf->tf_ops->fabric_make_tpg) { |
1046 | pr_err("tf->tf_ops->fabric_make_tpg is NULL\n"); | |
c66ac9db NB |
1047 | return ERR_PTR(-ENOSYS); |
1048 | } | |
1049 | ||
ef0caf8d | 1050 | se_tpg = tf->tf_ops->fabric_make_tpg(wwn, group, name); |
6708bb27 | 1051 | if (!se_tpg || IS_ERR(se_tpg)) |
c66ac9db NB |
1052 | return ERR_PTR(-EINVAL); |
1053 | /* | |
1054 | * Setup default groups from pre-allocated se_tpg->tpg_default_groups | |
1055 | */ | |
1056 | se_tpg->tpg_group.default_groups = se_tpg->tpg_default_groups; | |
1057 | se_tpg->tpg_group.default_groups[0] = &se_tpg->tpg_lun_group; | |
1058 | se_tpg->tpg_group.default_groups[1] = &se_tpg->tpg_np_group; | |
1059 | se_tpg->tpg_group.default_groups[2] = &se_tpg->tpg_acl_group; | |
1060 | se_tpg->tpg_group.default_groups[3] = &se_tpg->tpg_attrib_group; | |
e4b512e7 NB |
1061 | se_tpg->tpg_group.default_groups[4] = &se_tpg->tpg_auth_group; |
1062 | se_tpg->tpg_group.default_groups[5] = &se_tpg->tpg_param_group; | |
1063 | se_tpg->tpg_group.default_groups[6] = NULL; | |
c66ac9db NB |
1064 | |
1065 | config_group_init_type_name(&se_tpg->tpg_group, name, | |
968ebe75 | 1066 | &tf->tf_tpg_base_cit); |
c66ac9db | 1067 | config_group_init_type_name(&se_tpg->tpg_lun_group, "lun", |
968ebe75 | 1068 | &tf->tf_tpg_lun_cit); |
c66ac9db | 1069 | config_group_init_type_name(&se_tpg->tpg_np_group, "np", |
968ebe75 | 1070 | &tf->tf_tpg_np_cit); |
c66ac9db | 1071 | config_group_init_type_name(&se_tpg->tpg_acl_group, "acls", |
968ebe75 | 1072 | &tf->tf_tpg_nacl_cit); |
c66ac9db | 1073 | config_group_init_type_name(&se_tpg->tpg_attrib_group, "attrib", |
968ebe75 | 1074 | &tf->tf_tpg_attrib_cit); |
e4b512e7 | 1075 | config_group_init_type_name(&se_tpg->tpg_auth_group, "auth", |
968ebe75 | 1076 | &tf->tf_tpg_auth_cit); |
c66ac9db | 1077 | config_group_init_type_name(&se_tpg->tpg_param_group, "param", |
968ebe75 | 1078 | &tf->tf_tpg_param_cit); |
c66ac9db NB |
1079 | |
1080 | return &se_tpg->tpg_group; | |
1081 | } | |
1082 | ||
1083 | static void target_fabric_drop_tpg( | |
1084 | struct config_group *group, | |
1085 | struct config_item *item) | |
1086 | { | |
c66ac9db NB |
1087 | struct se_portal_group *se_tpg = container_of(to_config_group(item), |
1088 | struct se_portal_group, tpg_group); | |
1089 | struct config_group *tpg_cg = &se_tpg->tpg_group; | |
1090 | struct config_item *df_item; | |
1091 | int i; | |
1092 | /* | |
1093 | * Release default groups, but do not release tpg_cg->default_groups | |
1094 | * memory as it is statically allocated at se_tpg->tpg_default_groups. | |
1095 | */ | |
1096 | for (i = 0; tpg_cg->default_groups[i]; i++) { | |
1097 | df_item = &tpg_cg->default_groups[i]->cg_item; | |
1098 | tpg_cg->default_groups[i] = NULL; | |
1099 | config_item_put(df_item); | |
1100 | } | |
1101 | ||
1102 | config_item_put(item); | |
c66ac9db NB |
1103 | } |
1104 | ||
1f6fe7cb NB |
1105 | static void target_fabric_release_wwn(struct config_item *item) |
1106 | { | |
1107 | struct se_wwn *wwn = container_of(to_config_group(item), | |
1108 | struct se_wwn, wwn_group); | |
1109 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
1110 | ||
ef0caf8d | 1111 | tf->tf_ops->fabric_drop_wwn(wwn); |
1f6fe7cb NB |
1112 | } |
1113 | ||
1114 | static struct configfs_item_operations target_fabric_tpg_item_ops = { | |
1115 | .release = target_fabric_release_wwn, | |
1116 | }; | |
1117 | ||
c66ac9db NB |
1118 | static struct configfs_group_operations target_fabric_tpg_group_ops = { |
1119 | .make_group = target_fabric_make_tpg, | |
1120 | .drop_item = target_fabric_drop_tpg, | |
1121 | }; | |
1122 | ||
1f6fe7cb NB |
1123 | TF_CIT_SETUP(tpg, &target_fabric_tpg_item_ops, &target_fabric_tpg_group_ops, |
1124 | NULL); | |
c66ac9db NB |
1125 | |
1126 | /* End of tfc_tpg_cit */ | |
1127 | ||
12d23384 NB |
1128 | /* Start of tfc_wwn_fabric_stats_cit */ |
1129 | /* | |
1130 | * This is used as a placeholder for struct se_wwn->fabric_stat_group | |
1131 | * to allow fabrics access to ->fabric_stat_group->default_groups[] | |
1132 | */ | |
1133 | TF_CIT_SETUP(wwn_fabric_stats, NULL, NULL, NULL); | |
1134 | ||
1135 | /* End of tfc_wwn_fabric_stats_cit */ | |
1136 | ||
c66ac9db NB |
1137 | /* Start of tfc_wwn_cit */ |
1138 | ||
1139 | static struct config_group *target_fabric_make_wwn( | |
1140 | struct config_group *group, | |
1141 | const char *name) | |
1142 | { | |
1143 | struct target_fabric_configfs *tf = container_of(group, | |
1144 | struct target_fabric_configfs, tf_group); | |
1145 | struct se_wwn *wwn; | |
1146 | ||
ef0caf8d | 1147 | if (!tf->tf_ops->fabric_make_wwn) { |
6708bb27 | 1148 | pr_err("tf->tf_ops.fabric_make_wwn is NULL\n"); |
c66ac9db NB |
1149 | return ERR_PTR(-ENOSYS); |
1150 | } | |
1151 | ||
ef0caf8d | 1152 | wwn = tf->tf_ops->fabric_make_wwn(tf, group, name); |
6708bb27 | 1153 | if (!wwn || IS_ERR(wwn)) |
c66ac9db NB |
1154 | return ERR_PTR(-EINVAL); |
1155 | ||
1156 | wwn->wwn_tf = tf; | |
12d23384 NB |
1157 | /* |
1158 | * Setup default groups from pre-allocated wwn->wwn_default_groups | |
1159 | */ | |
1160 | wwn->wwn_group.default_groups = wwn->wwn_default_groups; | |
1161 | wwn->wwn_group.default_groups[0] = &wwn->fabric_stat_group; | |
1162 | wwn->wwn_group.default_groups[1] = NULL; | |
1163 | ||
968ebe75 | 1164 | config_group_init_type_name(&wwn->wwn_group, name, &tf->tf_tpg_cit); |
12d23384 | 1165 | config_group_init_type_name(&wwn->fabric_stat_group, "fabric_statistics", |
968ebe75 | 1166 | &tf->tf_wwn_fabric_stats_cit); |
c66ac9db NB |
1167 | |
1168 | return &wwn->wwn_group; | |
1169 | } | |
1170 | ||
1171 | static void target_fabric_drop_wwn( | |
1172 | struct config_group *group, | |
1173 | struct config_item *item) | |
1174 | { | |
12d23384 NB |
1175 | struct se_wwn *wwn = container_of(to_config_group(item), |
1176 | struct se_wwn, wwn_group); | |
1177 | struct config_item *df_item; | |
1178 | struct config_group *cg = &wwn->wwn_group; | |
1179 | int i; | |
1180 | ||
1181 | for (i = 0; cg->default_groups[i]; i++) { | |
1182 | df_item = &cg->default_groups[i]->cg_item; | |
1183 | cg->default_groups[i] = NULL; | |
1184 | config_item_put(df_item); | |
1185 | } | |
1186 | ||
c66ac9db | 1187 | config_item_put(item); |
c66ac9db NB |
1188 | } |
1189 | ||
1190 | static struct configfs_group_operations target_fabric_wwn_group_ops = { | |
1191 | .make_group = target_fabric_make_wwn, | |
1192 | .drop_item = target_fabric_drop_wwn, | |
1193 | }; | |
1194 | /* | |
1195 | * For use with TF_WWN_ATTR() and TF_WWN_ATTR_RO() | |
1196 | */ | |
1197 | CONFIGFS_EATTR_OPS(target_fabric_wwn, target_fabric_configfs, tf_group); | |
1198 | ||
1199 | static struct configfs_item_operations target_fabric_wwn_item_ops = { | |
1200 | .show_attribute = target_fabric_wwn_attr_show, | |
1201 | .store_attribute = target_fabric_wwn_attr_store, | |
1202 | }; | |
1203 | ||
9ac8928e | 1204 | TF_CIT_SETUP_DRV(wwn, &target_fabric_wwn_item_ops, &target_fabric_wwn_group_ops); |
c66ac9db NB |
1205 | |
1206 | /* End of tfc_wwn_cit */ | |
1207 | ||
1208 | /* Start of tfc_discovery_cit */ | |
1209 | ||
1210 | CONFIGFS_EATTR_OPS(target_fabric_discovery, target_fabric_configfs, | |
1211 | tf_disc_group); | |
1212 | ||
1213 | static struct configfs_item_operations target_fabric_discovery_item_ops = { | |
1214 | .show_attribute = target_fabric_discovery_attr_show, | |
1215 | .store_attribute = target_fabric_discovery_attr_store, | |
1216 | }; | |
1217 | ||
9ac8928e | 1218 | TF_CIT_SETUP_DRV(discovery, &target_fabric_discovery_item_ops, NULL); |
c66ac9db NB |
1219 | |
1220 | /* End of tfc_discovery_cit */ | |
1221 | ||
1222 | int target_fabric_setup_cits(struct target_fabric_configfs *tf) | |
1223 | { | |
1224 | target_fabric_setup_discovery_cit(tf); | |
1225 | target_fabric_setup_wwn_cit(tf); | |
12d23384 | 1226 | target_fabric_setup_wwn_fabric_stats_cit(tf); |
c66ac9db NB |
1227 | target_fabric_setup_tpg_cit(tf); |
1228 | target_fabric_setup_tpg_base_cit(tf); | |
1229 | target_fabric_setup_tpg_port_cit(tf); | |
12d23384 | 1230 | target_fabric_setup_tpg_port_stat_cit(tf); |
c66ac9db NB |
1231 | target_fabric_setup_tpg_lun_cit(tf); |
1232 | target_fabric_setup_tpg_np_cit(tf); | |
1233 | target_fabric_setup_tpg_np_base_cit(tf); | |
1234 | target_fabric_setup_tpg_attrib_cit(tf); | |
e4b512e7 | 1235 | target_fabric_setup_tpg_auth_cit(tf); |
c66ac9db NB |
1236 | target_fabric_setup_tpg_param_cit(tf); |
1237 | target_fabric_setup_tpg_nacl_cit(tf); | |
1238 | target_fabric_setup_tpg_nacl_base_cit(tf); | |
1239 | target_fabric_setup_tpg_nacl_attrib_cit(tf); | |
1240 | target_fabric_setup_tpg_nacl_auth_cit(tf); | |
1241 | target_fabric_setup_tpg_nacl_param_cit(tf); | |
12d23384 | 1242 | target_fabric_setup_tpg_nacl_stat_cit(tf); |
c66ac9db | 1243 | target_fabric_setup_tpg_mappedlun_cit(tf); |
12d23384 | 1244 | target_fabric_setup_tpg_mappedlun_stat_cit(tf); |
c66ac9db NB |
1245 | |
1246 | return 0; | |
1247 | } |