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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 | { \ | |
49 | struct target_fabric_configfs_template *tfc = &tf->tf_cit_tmpl; \ | |
50 | struct config_item_type *cit = &tfc->tfc_##_name##_cit; \ | |
51 | \ | |
52 | cit->ct_item_ops = _item_ops; \ | |
53 | cit->ct_group_ops = _group_ops; \ | |
54 | cit->ct_attrs = _attrs; \ | |
55 | cit->ct_owner = tf->tf_module; \ | |
6708bb27 | 56 | pr_debug("Setup generic %s\n", __stringify(_name)); \ |
c66ac9db NB |
57 | } |
58 | ||
59 | /* Start of tfc_tpg_mappedlun_cit */ | |
60 | ||
61 | static int target_fabric_mappedlun_link( | |
62 | struct config_item *lun_acl_ci, | |
63 | struct config_item *lun_ci) | |
64 | { | |
65 | struct se_dev_entry *deve; | |
66 | struct se_lun *lun = container_of(to_config_group(lun_ci), | |
67 | struct se_lun, lun_group); | |
68 | struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci), | |
69 | struct se_lun_acl, se_lun_group); | |
70 | struct se_portal_group *se_tpg; | |
71 | struct config_item *nacl_ci, *tpg_ci, *tpg_ci_s, *wwn_ci, *wwn_ci_s; | |
72 | int ret = 0, lun_access; | |
0ff87549 NB |
73 | |
74 | if (lun->lun_link_magic != SE_LUN_LINK_MAGIC) { | |
75 | pr_err("Bad lun->lun_link_magic, not a valid lun_ci pointer:" | |
76 | " %p to struct lun: %p\n", lun_ci, lun); | |
77 | return -EFAULT; | |
78 | } | |
c66ac9db NB |
79 | /* |
80 | * Ensure that the source port exists | |
81 | */ | |
6708bb27 AG |
82 | if (!lun->lun_sep || !lun->lun_sep->sep_tpg) { |
83 | pr_err("Source se_lun->lun_sep or lun->lun_sep->sep" | |
c66ac9db NB |
84 | "_tpg does not exist\n"); |
85 | return -EINVAL; | |
86 | } | |
87 | se_tpg = lun->lun_sep->sep_tpg; | |
88 | ||
89 | nacl_ci = &lun_acl_ci->ci_parent->ci_group->cg_item; | |
90 | tpg_ci = &nacl_ci->ci_group->cg_item; | |
91 | wwn_ci = &tpg_ci->ci_group->cg_item; | |
92 | tpg_ci_s = &lun_ci->ci_parent->ci_group->cg_item; | |
93 | wwn_ci_s = &tpg_ci_s->ci_group->cg_item; | |
94 | /* | |
95 | * Make sure the SymLink is going to the same $FABRIC/$WWN/tpgt_$TPGT | |
96 | */ | |
97 | if (strcmp(config_item_name(wwn_ci), config_item_name(wwn_ci_s))) { | |
6708bb27 | 98 | pr_err("Illegal Initiator ACL SymLink outside of %s\n", |
c66ac9db NB |
99 | config_item_name(wwn_ci)); |
100 | return -EINVAL; | |
101 | } | |
102 | if (strcmp(config_item_name(tpg_ci), config_item_name(tpg_ci_s))) { | |
6708bb27 | 103 | pr_err("Illegal Initiator ACL Symlink outside of %s" |
c66ac9db NB |
104 | " TPGT: %s\n", config_item_name(wwn_ci), |
105 | config_item_name(tpg_ci)); | |
106 | return -EINVAL; | |
107 | } | |
108 | /* | |
109 | * If this struct se_node_acl was dynamically generated with | |
110 | * tpg_1/attrib/generate_node_acls=1, use the existing deve->lun_flags, | |
111 | * which be will write protected (READ-ONLY) when | |
112 | * tpg_1/attrib/demo_mode_write_protect=1 | |
113 | */ | |
114 | spin_lock_irq(&lacl->se_lun_nacl->device_list_lock); | |
f2083241 | 115 | deve = lacl->se_lun_nacl->device_list[lacl->mapped_lun]; |
c66ac9db NB |
116 | if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) |
117 | lun_access = deve->lun_flags; | |
118 | else | |
119 | lun_access = | |
e3d6f909 | 120 | (se_tpg->se_tpg_tfo->tpg_check_prod_mode_write_protect( |
c66ac9db NB |
121 | se_tpg)) ? TRANSPORT_LUNFLAGS_READ_ONLY : |
122 | TRANSPORT_LUNFLAGS_READ_WRITE; | |
123 | spin_unlock_irq(&lacl->se_lun_nacl->device_list_lock); | |
124 | /* | |
125 | * Determine the actual mapped LUN value user wants.. | |
126 | * | |
127 | * This value is what the SCSI Initiator actually sees the | |
128 | * iscsi/$IQN/$TPGT/lun/lun_* as on their SCSI Initiator Ports. | |
129 | */ | |
130 | ret = core_dev_add_initiator_node_lun_acl(se_tpg, lacl, | |
131 | lun->unpacked_lun, lun_access); | |
132 | ||
133 | return (ret < 0) ? -EINVAL : 0; | |
134 | } | |
135 | ||
136 | static int target_fabric_mappedlun_unlink( | |
137 | struct config_item *lun_acl_ci, | |
138 | struct config_item *lun_ci) | |
139 | { | |
140 | struct se_lun *lun; | |
141 | struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci), | |
142 | struct se_lun_acl, se_lun_group); | |
143 | struct se_node_acl *nacl = lacl->se_lun_nacl; | |
f2083241 | 144 | struct se_dev_entry *deve = nacl->device_list[lacl->mapped_lun]; |
c66ac9db NB |
145 | struct se_portal_group *se_tpg; |
146 | /* | |
147 | * Determine if the underlying MappedLUN has already been released.. | |
148 | */ | |
6708bb27 | 149 | if (!deve->se_lun) |
c66ac9db NB |
150 | return 0; |
151 | ||
152 | lun = container_of(to_config_group(lun_ci), struct se_lun, lun_group); | |
153 | se_tpg = lun->lun_sep->sep_tpg; | |
154 | ||
155 | core_dev_del_initiator_node_lun_acl(se_tpg, lun, lacl); | |
156 | return 0; | |
157 | } | |
158 | ||
159 | CONFIGFS_EATTR_STRUCT(target_fabric_mappedlun, se_lun_acl); | |
160 | #define TCM_MAPPEDLUN_ATTR(_name, _mode) \ | |
161 | static struct target_fabric_mappedlun_attribute target_fabric_mappedlun_##_name = \ | |
162 | __CONFIGFS_EATTR(_name, _mode, \ | |
163 | target_fabric_mappedlun_show_##_name, \ | |
164 | target_fabric_mappedlun_store_##_name); | |
165 | ||
166 | static ssize_t target_fabric_mappedlun_show_write_protect( | |
167 | struct se_lun_acl *lacl, | |
168 | char *page) | |
169 | { | |
170 | struct se_node_acl *se_nacl = lacl->se_lun_nacl; | |
171 | struct se_dev_entry *deve; | |
172 | ssize_t len; | |
173 | ||
174 | spin_lock_irq(&se_nacl->device_list_lock); | |
f2083241 | 175 | deve = se_nacl->device_list[lacl->mapped_lun]; |
c66ac9db NB |
176 | len = sprintf(page, "%d\n", |
177 | (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY) ? | |
178 | 1 : 0); | |
179 | spin_unlock_irq(&se_nacl->device_list_lock); | |
180 | ||
181 | return len; | |
182 | } | |
183 | ||
184 | static ssize_t target_fabric_mappedlun_store_write_protect( | |
185 | struct se_lun_acl *lacl, | |
186 | const char *page, | |
187 | size_t count) | |
188 | { | |
189 | struct se_node_acl *se_nacl = lacl->se_lun_nacl; | |
190 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
191 | unsigned long op; | |
57103d7f | 192 | int ret; |
c66ac9db | 193 | |
57103d7f JH |
194 | ret = kstrtoul(page, 0, &op); |
195 | if (ret) | |
196 | return ret; | |
c66ac9db NB |
197 | |
198 | if ((op != 1) && (op != 0)) | |
199 | return -EINVAL; | |
200 | ||
201 | core_update_device_list_access(lacl->mapped_lun, (op) ? | |
202 | TRANSPORT_LUNFLAGS_READ_ONLY : | |
203 | TRANSPORT_LUNFLAGS_READ_WRITE, | |
204 | lacl->se_lun_nacl); | |
205 | ||
6708bb27 | 206 | pr_debug("%s_ConfigFS: Changed Initiator ACL: %s" |
c66ac9db | 207 | " Mapped LUN: %u Write Protect bit to %s\n", |
e3d6f909 | 208 | se_tpg->se_tpg_tfo->get_fabric_name(), |
c66ac9db NB |
209 | lacl->initiatorname, lacl->mapped_lun, (op) ? "ON" : "OFF"); |
210 | ||
211 | return count; | |
212 | ||
213 | } | |
214 | ||
215 | TCM_MAPPEDLUN_ATTR(write_protect, S_IRUGO | S_IWUSR); | |
216 | ||
217 | CONFIGFS_EATTR_OPS(target_fabric_mappedlun, se_lun_acl, se_lun_group); | |
218 | ||
1f6fe7cb NB |
219 | static void target_fabric_mappedlun_release(struct config_item *item) |
220 | { | |
221 | struct se_lun_acl *lacl = container_of(to_config_group(item), | |
222 | struct se_lun_acl, se_lun_group); | |
223 | struct se_portal_group *se_tpg = lacl->se_lun_nacl->se_tpg; | |
224 | ||
225 | core_dev_free_initiator_node_lun_acl(se_tpg, lacl); | |
226 | } | |
227 | ||
c66ac9db NB |
228 | static struct configfs_attribute *target_fabric_mappedlun_attrs[] = { |
229 | &target_fabric_mappedlun_write_protect.attr, | |
230 | NULL, | |
231 | }; | |
232 | ||
233 | static struct configfs_item_operations target_fabric_mappedlun_item_ops = { | |
1f6fe7cb | 234 | .release = target_fabric_mappedlun_release, |
c66ac9db NB |
235 | .show_attribute = target_fabric_mappedlun_attr_show, |
236 | .store_attribute = target_fabric_mappedlun_attr_store, | |
237 | .allow_link = target_fabric_mappedlun_link, | |
238 | .drop_link = target_fabric_mappedlun_unlink, | |
239 | }; | |
240 | ||
241 | TF_CIT_SETUP(tpg_mappedlun, &target_fabric_mappedlun_item_ops, NULL, | |
242 | target_fabric_mappedlun_attrs); | |
243 | ||
244 | /* End of tfc_tpg_mappedlun_cit */ | |
245 | ||
12d23384 NB |
246 | /* Start of tfc_tpg_mappedlun_port_cit */ |
247 | ||
248 | static struct config_group *target_core_mappedlun_stat_mkdir( | |
249 | struct config_group *group, | |
250 | const char *name) | |
251 | { | |
252 | return ERR_PTR(-ENOSYS); | |
253 | } | |
254 | ||
255 | static void target_core_mappedlun_stat_rmdir( | |
256 | struct config_group *group, | |
257 | struct config_item *item) | |
258 | { | |
259 | return; | |
260 | } | |
261 | ||
262 | static struct configfs_group_operations target_fabric_mappedlun_stat_group_ops = { | |
263 | .make_group = target_core_mappedlun_stat_mkdir, | |
264 | .drop_item = target_core_mappedlun_stat_rmdir, | |
265 | }; | |
266 | ||
267 | TF_CIT_SETUP(tpg_mappedlun_stat, NULL, &target_fabric_mappedlun_stat_group_ops, | |
268 | NULL); | |
269 | ||
270 | /* End of tfc_tpg_mappedlun_port_cit */ | |
271 | ||
c66ac9db NB |
272 | /* Start of tfc_tpg_nacl_attrib_cit */ |
273 | ||
274 | CONFIGFS_EATTR_OPS(target_fabric_nacl_attrib, se_node_acl, acl_attrib_group); | |
275 | ||
276 | static struct configfs_item_operations target_fabric_nacl_attrib_item_ops = { | |
277 | .show_attribute = target_fabric_nacl_attrib_attr_show, | |
278 | .store_attribute = target_fabric_nacl_attrib_attr_store, | |
279 | }; | |
280 | ||
281 | TF_CIT_SETUP(tpg_nacl_attrib, &target_fabric_nacl_attrib_item_ops, NULL, NULL); | |
282 | ||
283 | /* End of tfc_tpg_nacl_attrib_cit */ | |
284 | ||
285 | /* Start of tfc_tpg_nacl_auth_cit */ | |
286 | ||
287 | CONFIGFS_EATTR_OPS(target_fabric_nacl_auth, se_node_acl, acl_auth_group); | |
288 | ||
289 | static struct configfs_item_operations target_fabric_nacl_auth_item_ops = { | |
290 | .show_attribute = target_fabric_nacl_auth_attr_show, | |
291 | .store_attribute = target_fabric_nacl_auth_attr_store, | |
292 | }; | |
293 | ||
294 | TF_CIT_SETUP(tpg_nacl_auth, &target_fabric_nacl_auth_item_ops, NULL, NULL); | |
295 | ||
296 | /* End of tfc_tpg_nacl_auth_cit */ | |
297 | ||
298 | /* Start of tfc_tpg_nacl_param_cit */ | |
299 | ||
300 | CONFIGFS_EATTR_OPS(target_fabric_nacl_param, se_node_acl, acl_param_group); | |
301 | ||
302 | static struct configfs_item_operations target_fabric_nacl_param_item_ops = { | |
303 | .show_attribute = target_fabric_nacl_param_attr_show, | |
304 | .store_attribute = target_fabric_nacl_param_attr_store, | |
305 | }; | |
306 | ||
307 | TF_CIT_SETUP(tpg_nacl_param, &target_fabric_nacl_param_item_ops, NULL, NULL); | |
308 | ||
309 | /* End of tfc_tpg_nacl_param_cit */ | |
310 | ||
311 | /* Start of tfc_tpg_nacl_base_cit */ | |
312 | ||
313 | CONFIGFS_EATTR_OPS(target_fabric_nacl_base, se_node_acl, acl_group); | |
314 | ||
315 | static struct config_group *target_fabric_make_mappedlun( | |
316 | struct config_group *group, | |
317 | const char *name) | |
318 | { | |
319 | struct se_node_acl *se_nacl = container_of(group, | |
320 | struct se_node_acl, acl_group); | |
321 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
322 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
da0abaee | 323 | struct se_lun_acl *lacl = NULL; |
c66ac9db | 324 | struct config_item *acl_ci; |
12d23384 | 325 | struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; |
c66ac9db NB |
326 | char *buf; |
327 | unsigned long mapped_lun; | |
328 | int ret = 0; | |
329 | ||
330 | acl_ci = &group->cg_item; | |
6708bb27 AG |
331 | if (!acl_ci) { |
332 | pr_err("Unable to locatel acl_ci\n"); | |
c66ac9db NB |
333 | return NULL; |
334 | } | |
335 | ||
336 | buf = kzalloc(strlen(name) + 1, GFP_KERNEL); | |
6708bb27 AG |
337 | if (!buf) { |
338 | pr_err("Unable to allocate memory for name buf\n"); | |
c66ac9db NB |
339 | return ERR_PTR(-ENOMEM); |
340 | } | |
341 | snprintf(buf, strlen(name) + 1, "%s", name); | |
342 | /* | |
343 | * Make sure user is creating iscsi/$IQN/$TPGT/acls/$INITIATOR/lun_$ID. | |
344 | */ | |
345 | if (strstr(buf, "lun_") != buf) { | |
6708bb27 | 346 | pr_err("Unable to locate \"lun_\" from buf: %s" |
c66ac9db NB |
347 | " name: %s\n", buf, name); |
348 | ret = -EINVAL; | |
349 | goto out; | |
350 | } | |
351 | /* | |
352 | * Determine the Mapped LUN value. This is what the SCSI Initiator | |
353 | * Port will actually see. | |
354 | */ | |
57103d7f JH |
355 | ret = kstrtoul(buf + 4, 0, &mapped_lun); |
356 | if (ret) | |
357 | goto out; | |
358 | if (mapped_lun > UINT_MAX) { | |
c66ac9db NB |
359 | ret = -EINVAL; |
360 | goto out; | |
361 | } | |
fbbf8555 NB |
362 | if (mapped_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) { |
363 | pr_err("Mapped LUN: %lu exceeds TRANSPORT_MAX_LUNS_PER_TPG" | |
364 | "-1: %u for Target Portal Group: %u\n", mapped_lun, | |
365 | TRANSPORT_MAX_LUNS_PER_TPG-1, | |
366 | se_tpg->se_tpg_tfo->tpg_get_tag(se_tpg)); | |
367 | ret = -EINVAL; | |
368 | goto out; | |
369 | } | |
c66ac9db | 370 | |
fcf29481 NB |
371 | lacl = core_dev_init_initiator_node_lun_acl(se_tpg, se_nacl, |
372 | mapped_lun, &ret); | |
6708bb27 | 373 | if (!lacl) { |
12d23384 | 374 | ret = -EINVAL; |
c66ac9db | 375 | goto out; |
12d23384 NB |
376 | } |
377 | ||
378 | lacl_cg = &lacl->se_lun_group; | |
13f6a914 | 379 | lacl_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, |
12d23384 NB |
380 | GFP_KERNEL); |
381 | if (!lacl_cg->default_groups) { | |
6708bb27 | 382 | pr_err("Unable to allocate lacl_cg->default_groups\n"); |
12d23384 NB |
383 | ret = -ENOMEM; |
384 | goto out; | |
385 | } | |
c66ac9db NB |
386 | |
387 | config_group_init_type_name(&lacl->se_lun_group, name, | |
d80e224d | 388 | &tf->tf_cit_tmpl.tfc_tpg_mappedlun_cit); |
12d23384 | 389 | config_group_init_type_name(&lacl->ml_stat_grps.stat_group, |
d80e224d | 390 | "statistics", &tf->tf_cit_tmpl.tfc_tpg_mappedlun_stat_cit); |
12d23384 NB |
391 | lacl_cg->default_groups[0] = &lacl->ml_stat_grps.stat_group; |
392 | lacl_cg->default_groups[1] = NULL; | |
393 | ||
e3d6f909 | 394 | ml_stat_grp = &lacl->ml_stat_grps.stat_group; |
13f6a914 | 395 | ml_stat_grp->default_groups = kmalloc(sizeof(struct config_group *) * 3, |
12d23384 NB |
396 | GFP_KERNEL); |
397 | if (!ml_stat_grp->default_groups) { | |
6708bb27 | 398 | pr_err("Unable to allocate ml_stat_grp->default_groups\n"); |
12d23384 NB |
399 | ret = -ENOMEM; |
400 | goto out; | |
401 | } | |
402 | target_stat_setup_mappedlun_default_groups(lacl); | |
c66ac9db NB |
403 | |
404 | kfree(buf); | |
405 | return &lacl->se_lun_group; | |
406 | out: | |
12d23384 NB |
407 | if (lacl_cg) |
408 | kfree(lacl_cg->default_groups); | |
da0abaee | 409 | kfree(lacl); |
c66ac9db NB |
410 | kfree(buf); |
411 | return ERR_PTR(ret); | |
412 | } | |
413 | ||
414 | static void target_fabric_drop_mappedlun( | |
415 | struct config_group *group, | |
416 | struct config_item *item) | |
417 | { | |
12d23384 NB |
418 | struct se_lun_acl *lacl = container_of(to_config_group(item), |
419 | struct se_lun_acl, se_lun_group); | |
420 | struct config_item *df_item; | |
421 | struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; | |
422 | int i; | |
423 | ||
e3d6f909 | 424 | ml_stat_grp = &lacl->ml_stat_grps.stat_group; |
12d23384 NB |
425 | for (i = 0; ml_stat_grp->default_groups[i]; i++) { |
426 | df_item = &ml_stat_grp->default_groups[i]->cg_item; | |
427 | ml_stat_grp->default_groups[i] = NULL; | |
428 | config_item_put(df_item); | |
429 | } | |
430 | kfree(ml_stat_grp->default_groups); | |
431 | ||
432 | lacl_cg = &lacl->se_lun_group; | |
433 | for (i = 0; lacl_cg->default_groups[i]; i++) { | |
434 | df_item = &lacl_cg->default_groups[i]->cg_item; | |
435 | lacl_cg->default_groups[i] = NULL; | |
436 | config_item_put(df_item); | |
437 | } | |
438 | kfree(lacl_cg->default_groups); | |
439 | ||
c66ac9db | 440 | config_item_put(item); |
1f6fe7cb NB |
441 | } |
442 | ||
443 | static void target_fabric_nacl_base_release(struct config_item *item) | |
444 | { | |
445 | struct se_node_acl *se_nacl = container_of(to_config_group(item), | |
446 | struct se_node_acl, acl_group); | |
447 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
448 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
449 | ||
450 | tf->tf_ops.fabric_drop_nodeacl(se_nacl); | |
c66ac9db NB |
451 | } |
452 | ||
453 | static struct configfs_item_operations target_fabric_nacl_base_item_ops = { | |
1f6fe7cb | 454 | .release = target_fabric_nacl_base_release, |
c66ac9db NB |
455 | .show_attribute = target_fabric_nacl_base_attr_show, |
456 | .store_attribute = target_fabric_nacl_base_attr_store, | |
457 | }; | |
458 | ||
459 | static struct configfs_group_operations target_fabric_nacl_base_group_ops = { | |
460 | .make_group = target_fabric_make_mappedlun, | |
461 | .drop_item = target_fabric_drop_mappedlun, | |
462 | }; | |
463 | ||
464 | TF_CIT_SETUP(tpg_nacl_base, &target_fabric_nacl_base_item_ops, | |
465 | &target_fabric_nacl_base_group_ops, NULL); | |
466 | ||
467 | /* End of tfc_tpg_nacl_base_cit */ | |
468 | ||
12d23384 NB |
469 | /* Start of tfc_node_fabric_stats_cit */ |
470 | /* | |
471 | * This is used as a placeholder for struct se_node_acl->acl_fabric_stat_group | |
472 | * to allow fabrics access to ->acl_fabric_stat_group->default_groups[] | |
473 | */ | |
474 | TF_CIT_SETUP(tpg_nacl_stat, NULL, NULL, NULL); | |
475 | ||
476 | /* End of tfc_wwn_fabric_stats_cit */ | |
477 | ||
c66ac9db NB |
478 | /* Start of tfc_tpg_nacl_cit */ |
479 | ||
480 | static struct config_group *target_fabric_make_nodeacl( | |
481 | struct config_group *group, | |
482 | const char *name) | |
483 | { | |
484 | struct se_portal_group *se_tpg = container_of(group, | |
485 | struct se_portal_group, tpg_acl_group); | |
486 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
487 | struct se_node_acl *se_nacl; | |
488 | struct config_group *nacl_cg; | |
489 | ||
6708bb27 AG |
490 | if (!tf->tf_ops.fabric_make_nodeacl) { |
491 | pr_err("tf->tf_ops.fabric_make_nodeacl is NULL\n"); | |
c66ac9db NB |
492 | return ERR_PTR(-ENOSYS); |
493 | } | |
494 | ||
495 | se_nacl = tf->tf_ops.fabric_make_nodeacl(se_tpg, group, name); | |
496 | if (IS_ERR(se_nacl)) | |
e1750ba2 | 497 | return ERR_CAST(se_nacl); |
c66ac9db NB |
498 | |
499 | nacl_cg = &se_nacl->acl_group; | |
500 | nacl_cg->default_groups = se_nacl->acl_default_groups; | |
501 | nacl_cg->default_groups[0] = &se_nacl->acl_attrib_group; | |
502 | nacl_cg->default_groups[1] = &se_nacl->acl_auth_group; | |
503 | nacl_cg->default_groups[2] = &se_nacl->acl_param_group; | |
12d23384 NB |
504 | nacl_cg->default_groups[3] = &se_nacl->acl_fabric_stat_group; |
505 | nacl_cg->default_groups[4] = NULL; | |
c66ac9db NB |
506 | |
507 | config_group_init_type_name(&se_nacl->acl_group, name, | |
d80e224d | 508 | &tf->tf_cit_tmpl.tfc_tpg_nacl_base_cit); |
c66ac9db | 509 | config_group_init_type_name(&se_nacl->acl_attrib_group, "attrib", |
d80e224d | 510 | &tf->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit); |
c66ac9db | 511 | config_group_init_type_name(&se_nacl->acl_auth_group, "auth", |
d80e224d | 512 | &tf->tf_cit_tmpl.tfc_tpg_nacl_auth_cit); |
c66ac9db | 513 | config_group_init_type_name(&se_nacl->acl_param_group, "param", |
d80e224d | 514 | &tf->tf_cit_tmpl.tfc_tpg_nacl_param_cit); |
12d23384 NB |
515 | config_group_init_type_name(&se_nacl->acl_fabric_stat_group, |
516 | "fabric_statistics", | |
d80e224d | 517 | &tf->tf_cit_tmpl.tfc_tpg_nacl_stat_cit); |
c66ac9db NB |
518 | |
519 | return &se_nacl->acl_group; | |
520 | } | |
521 | ||
522 | static void target_fabric_drop_nodeacl( | |
523 | struct config_group *group, | |
524 | struct config_item *item) | |
525 | { | |
c66ac9db NB |
526 | struct se_node_acl *se_nacl = container_of(to_config_group(item), |
527 | struct se_node_acl, acl_group); | |
528 | struct config_item *df_item; | |
529 | struct config_group *nacl_cg; | |
530 | int i; | |
531 | ||
532 | nacl_cg = &se_nacl->acl_group; | |
533 | for (i = 0; nacl_cg->default_groups[i]; i++) { | |
534 | df_item = &nacl_cg->default_groups[i]->cg_item; | |
535 | nacl_cg->default_groups[i] = NULL; | |
536 | config_item_put(df_item); | |
537 | } | |
1f6fe7cb NB |
538 | /* |
539 | * struct se_node_acl free is done in target_fabric_nacl_base_release() | |
540 | */ | |
c66ac9db | 541 | config_item_put(item); |
c66ac9db NB |
542 | } |
543 | ||
544 | static struct configfs_group_operations target_fabric_nacl_group_ops = { | |
545 | .make_group = target_fabric_make_nodeacl, | |
546 | .drop_item = target_fabric_drop_nodeacl, | |
547 | }; | |
548 | ||
549 | TF_CIT_SETUP(tpg_nacl, NULL, &target_fabric_nacl_group_ops, NULL); | |
550 | ||
551 | /* End of tfc_tpg_nacl_cit */ | |
552 | ||
553 | /* Start of tfc_tpg_np_base_cit */ | |
554 | ||
555 | CONFIGFS_EATTR_OPS(target_fabric_np_base, se_tpg_np, tpg_np_group); | |
556 | ||
1f6fe7cb NB |
557 | static void target_fabric_np_base_release(struct config_item *item) |
558 | { | |
559 | struct se_tpg_np *se_tpg_np = container_of(to_config_group(item), | |
560 | struct se_tpg_np, tpg_np_group); | |
561 | struct se_portal_group *se_tpg = se_tpg_np->tpg_np_parent; | |
562 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
563 | ||
564 | tf->tf_ops.fabric_drop_np(se_tpg_np); | |
565 | } | |
566 | ||
c66ac9db | 567 | static struct configfs_item_operations target_fabric_np_base_item_ops = { |
1f6fe7cb | 568 | .release = target_fabric_np_base_release, |
c66ac9db NB |
569 | .show_attribute = target_fabric_np_base_attr_show, |
570 | .store_attribute = target_fabric_np_base_attr_store, | |
571 | }; | |
572 | ||
573 | TF_CIT_SETUP(tpg_np_base, &target_fabric_np_base_item_ops, NULL, NULL); | |
574 | ||
575 | /* End of tfc_tpg_np_base_cit */ | |
576 | ||
577 | /* Start of tfc_tpg_np_cit */ | |
578 | ||
579 | static struct config_group *target_fabric_make_np( | |
580 | struct config_group *group, | |
581 | const char *name) | |
582 | { | |
583 | struct se_portal_group *se_tpg = container_of(group, | |
584 | struct se_portal_group, tpg_np_group); | |
585 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
586 | struct se_tpg_np *se_tpg_np; | |
587 | ||
6708bb27 AG |
588 | if (!tf->tf_ops.fabric_make_np) { |
589 | pr_err("tf->tf_ops.fabric_make_np is NULL\n"); | |
c66ac9db NB |
590 | return ERR_PTR(-ENOSYS); |
591 | } | |
592 | ||
593 | se_tpg_np = tf->tf_ops.fabric_make_np(se_tpg, group, name); | |
6708bb27 | 594 | if (!se_tpg_np || IS_ERR(se_tpg_np)) |
c66ac9db NB |
595 | return ERR_PTR(-EINVAL); |
596 | ||
1f6fe7cb | 597 | se_tpg_np->tpg_np_parent = se_tpg; |
c66ac9db | 598 | config_group_init_type_name(&se_tpg_np->tpg_np_group, name, |
d80e224d | 599 | &tf->tf_cit_tmpl.tfc_tpg_np_base_cit); |
c66ac9db NB |
600 | |
601 | return &se_tpg_np->tpg_np_group; | |
602 | } | |
603 | ||
604 | static void target_fabric_drop_np( | |
605 | struct config_group *group, | |
606 | struct config_item *item) | |
607 | { | |
1f6fe7cb NB |
608 | /* |
609 | * struct se_tpg_np is released via target_fabric_np_base_release() | |
610 | */ | |
c66ac9db | 611 | config_item_put(item); |
c66ac9db NB |
612 | } |
613 | ||
614 | static struct configfs_group_operations target_fabric_np_group_ops = { | |
615 | .make_group = &target_fabric_make_np, | |
616 | .drop_item = &target_fabric_drop_np, | |
617 | }; | |
618 | ||
619 | TF_CIT_SETUP(tpg_np, NULL, &target_fabric_np_group_ops, NULL); | |
620 | ||
621 | /* End of tfc_tpg_np_cit */ | |
622 | ||
623 | /* Start of tfc_tpg_port_cit */ | |
624 | ||
625 | CONFIGFS_EATTR_STRUCT(target_fabric_port, se_lun); | |
626 | #define TCM_PORT_ATTR(_name, _mode) \ | |
627 | static struct target_fabric_port_attribute target_fabric_port_##_name = \ | |
628 | __CONFIGFS_EATTR(_name, _mode, \ | |
629 | target_fabric_port_show_attr_##_name, \ | |
630 | target_fabric_port_store_attr_##_name); | |
631 | ||
632 | #define TCM_PORT_ATTOR_RO(_name) \ | |
633 | __CONFIGFS_EATTR_RO(_name, \ | |
634 | target_fabric_port_show_attr_##_name); | |
635 | ||
636 | /* | |
637 | * alua_tg_pt_gp | |
638 | */ | |
639 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_gp( | |
640 | struct se_lun *lun, | |
641 | char *page) | |
642 | { | |
6708bb27 | 643 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
644 | return -ENODEV; |
645 | ||
646 | return core_alua_show_tg_pt_gp_info(lun->lun_sep, page); | |
647 | } | |
648 | ||
649 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_gp( | |
650 | struct se_lun *lun, | |
651 | const char *page, | |
652 | size_t count) | |
653 | { | |
6708bb27 | 654 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
655 | return -ENODEV; |
656 | ||
657 | return core_alua_store_tg_pt_gp_info(lun->lun_sep, page, count); | |
658 | } | |
659 | ||
660 | TCM_PORT_ATTR(alua_tg_pt_gp, S_IRUGO | S_IWUSR); | |
661 | ||
662 | /* | |
663 | * alua_tg_pt_offline | |
664 | */ | |
665 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_offline( | |
666 | struct se_lun *lun, | |
667 | char *page) | |
668 | { | |
6708bb27 | 669 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
670 | return -ENODEV; |
671 | ||
672 | return core_alua_show_offline_bit(lun, page); | |
673 | } | |
674 | ||
675 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_offline( | |
676 | struct se_lun *lun, | |
677 | const char *page, | |
678 | size_t count) | |
679 | { | |
6708bb27 | 680 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
681 | return -ENODEV; |
682 | ||
683 | return core_alua_store_offline_bit(lun, page, count); | |
684 | } | |
685 | ||
686 | TCM_PORT_ATTR(alua_tg_pt_offline, S_IRUGO | S_IWUSR); | |
687 | ||
688 | /* | |
689 | * alua_tg_pt_status | |
690 | */ | |
691 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_status( | |
692 | struct se_lun *lun, | |
693 | char *page) | |
694 | { | |
6708bb27 | 695 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
696 | return -ENODEV; |
697 | ||
698 | return core_alua_show_secondary_status(lun, page); | |
699 | } | |
700 | ||
701 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_status( | |
702 | struct se_lun *lun, | |
703 | const char *page, | |
704 | size_t count) | |
705 | { | |
6708bb27 | 706 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
707 | return -ENODEV; |
708 | ||
709 | return core_alua_store_secondary_status(lun, page, count); | |
710 | } | |
711 | ||
712 | TCM_PORT_ATTR(alua_tg_pt_status, S_IRUGO | S_IWUSR); | |
713 | ||
714 | /* | |
715 | * alua_tg_pt_write_md | |
716 | */ | |
717 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_write_md( | |
718 | struct se_lun *lun, | |
719 | char *page) | |
720 | { | |
6708bb27 | 721 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
722 | return -ENODEV; |
723 | ||
724 | return core_alua_show_secondary_write_metadata(lun, page); | |
725 | } | |
726 | ||
727 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_write_md( | |
728 | struct se_lun *lun, | |
729 | const char *page, | |
730 | size_t count) | |
731 | { | |
6708bb27 | 732 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
733 | return -ENODEV; |
734 | ||
735 | return core_alua_store_secondary_write_metadata(lun, page, count); | |
736 | } | |
737 | ||
738 | TCM_PORT_ATTR(alua_tg_pt_write_md, S_IRUGO | S_IWUSR); | |
739 | ||
740 | ||
741 | static struct configfs_attribute *target_fabric_port_attrs[] = { | |
742 | &target_fabric_port_alua_tg_pt_gp.attr, | |
743 | &target_fabric_port_alua_tg_pt_offline.attr, | |
744 | &target_fabric_port_alua_tg_pt_status.attr, | |
745 | &target_fabric_port_alua_tg_pt_write_md.attr, | |
746 | NULL, | |
747 | }; | |
748 | ||
749 | CONFIGFS_EATTR_OPS(target_fabric_port, se_lun, lun_group); | |
750 | ||
751 | static int target_fabric_port_link( | |
752 | struct config_item *lun_ci, | |
753 | struct config_item *se_dev_ci) | |
754 | { | |
755 | struct config_item *tpg_ci; | |
c66ac9db NB |
756 | struct se_lun *lun = container_of(to_config_group(lun_ci), |
757 | struct se_lun, lun_group); | |
758 | struct se_lun *lun_p; | |
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 | ||
2dca673b | 786 | lun_p = core_dev_add_lun(se_tpg, dev, lun->unpacked_lun); |
8d9efe53 | 787 | if (IS_ERR(lun_p)) { |
6708bb27 | 788 | pr_err("core_dev_add_lun() failed\n"); |
8d9efe53 | 789 | ret = PTR_ERR(lun_p); |
c66ac9db NB |
790 | goto out; |
791 | } | |
792 | ||
793 | if (tf->tf_ops.fabric_post_link) { | |
794 | /* | |
795 | * Call the optional fabric_post_link() to allow a | |
796 | * fabric module to setup any additional state once | |
797 | * core_dev_add_lun() has been called.. | |
798 | */ | |
799 | tf->tf_ops.fabric_post_link(se_tpg, lun); | |
800 | } | |
801 | ||
802 | return 0; | |
803 | out: | |
804 | return ret; | |
805 | } | |
806 | ||
807 | static int target_fabric_port_unlink( | |
808 | struct config_item *lun_ci, | |
809 | struct config_item *se_dev_ci) | |
810 | { | |
811 | struct se_lun *lun = container_of(to_config_group(lun_ci), | |
812 | struct se_lun, lun_group); | |
813 | struct se_portal_group *se_tpg = lun->lun_sep->sep_tpg; | |
814 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
815 | ||
816 | if (tf->tf_ops.fabric_pre_unlink) { | |
817 | /* | |
818 | * Call the optional fabric_pre_unlink() to allow a | |
819 | * fabric module to release any additional stat before | |
820 | * core_dev_del_lun() is called. | |
821 | */ | |
822 | tf->tf_ops.fabric_pre_unlink(se_tpg, lun); | |
823 | } | |
824 | ||
cd9d7cba | 825 | core_dev_del_lun(se_tpg, lun); |
c66ac9db NB |
826 | return 0; |
827 | } | |
828 | ||
829 | static struct configfs_item_operations target_fabric_port_item_ops = { | |
830 | .show_attribute = target_fabric_port_attr_show, | |
831 | .store_attribute = target_fabric_port_attr_store, | |
832 | .allow_link = target_fabric_port_link, | |
833 | .drop_link = target_fabric_port_unlink, | |
834 | }; | |
835 | ||
836 | TF_CIT_SETUP(tpg_port, &target_fabric_port_item_ops, NULL, target_fabric_port_attrs); | |
837 | ||
838 | /* End of tfc_tpg_port_cit */ | |
839 | ||
12d23384 NB |
840 | /* Start of tfc_tpg_port_stat_cit */ |
841 | ||
842 | static struct config_group *target_core_port_stat_mkdir( | |
843 | struct config_group *group, | |
844 | const char *name) | |
845 | { | |
846 | return ERR_PTR(-ENOSYS); | |
847 | } | |
848 | ||
849 | static void target_core_port_stat_rmdir( | |
850 | struct config_group *group, | |
851 | struct config_item *item) | |
852 | { | |
853 | return; | |
854 | } | |
855 | ||
856 | static struct configfs_group_operations target_fabric_port_stat_group_ops = { | |
857 | .make_group = target_core_port_stat_mkdir, | |
858 | .drop_item = target_core_port_stat_rmdir, | |
859 | }; | |
860 | ||
861 | TF_CIT_SETUP(tpg_port_stat, NULL, &target_fabric_port_stat_group_ops, NULL); | |
862 | ||
863 | /* End of tfc_tpg_port_stat_cit */ | |
864 | ||
c66ac9db NB |
865 | /* Start of tfc_tpg_lun_cit */ |
866 | ||
867 | static struct config_group *target_fabric_make_lun( | |
868 | struct config_group *group, | |
869 | const char *name) | |
870 | { | |
871 | struct se_lun *lun; | |
872 | struct se_portal_group *se_tpg = container_of(group, | |
873 | struct se_portal_group, tpg_lun_group); | |
874 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
12d23384 | 875 | struct config_group *lun_cg = NULL, *port_stat_grp = NULL; |
c66ac9db | 876 | unsigned long unpacked_lun; |
12d23384 | 877 | int errno; |
c66ac9db NB |
878 | |
879 | if (strstr(name, "lun_") != name) { | |
6708bb27 | 880 | pr_err("Unable to locate \'_\" in" |
c66ac9db NB |
881 | " \"lun_$LUN_NUMBER\"\n"); |
882 | return ERR_PTR(-EINVAL); | |
883 | } | |
57103d7f JH |
884 | errno = kstrtoul(name + 4, 0, &unpacked_lun); |
885 | if (errno) | |
886 | return ERR_PTR(errno); | |
887 | if (unpacked_lun > UINT_MAX) | |
c66ac9db NB |
888 | return ERR_PTR(-EINVAL); |
889 | ||
890 | lun = core_get_lun_from_tpg(se_tpg, unpacked_lun); | |
6708bb27 | 891 | if (!lun) |
c66ac9db NB |
892 | return ERR_PTR(-EINVAL); |
893 | ||
12d23384 | 894 | lun_cg = &lun->lun_group; |
13f6a914 | 895 | lun_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, |
12d23384 NB |
896 | GFP_KERNEL); |
897 | if (!lun_cg->default_groups) { | |
6708bb27 | 898 | pr_err("Unable to allocate lun_cg->default_groups\n"); |
12d23384 NB |
899 | return ERR_PTR(-ENOMEM); |
900 | } | |
901 | ||
c66ac9db | 902 | config_group_init_type_name(&lun->lun_group, name, |
d80e224d | 903 | &tf->tf_cit_tmpl.tfc_tpg_port_cit); |
12d23384 | 904 | config_group_init_type_name(&lun->port_stat_grps.stat_group, |
d80e224d | 905 | "statistics", &tf->tf_cit_tmpl.tfc_tpg_port_stat_cit); |
12d23384 NB |
906 | lun_cg->default_groups[0] = &lun->port_stat_grps.stat_group; |
907 | lun_cg->default_groups[1] = NULL; | |
908 | ||
e3d6f909 | 909 | port_stat_grp = &lun->port_stat_grps.stat_group; |
ab6dae82 | 910 | port_stat_grp->default_groups = kzalloc(sizeof(struct config_group *) * 4, |
12d23384 NB |
911 | GFP_KERNEL); |
912 | if (!port_stat_grp->default_groups) { | |
6708bb27 | 913 | pr_err("Unable to allocate port_stat_grp->default_groups\n"); |
1481473b JE |
914 | kfree(lun_cg->default_groups); |
915 | return ERR_PTR(-ENOMEM); | |
12d23384 NB |
916 | } |
917 | target_stat_setup_port_default_groups(lun); | |
c66ac9db NB |
918 | |
919 | return &lun->lun_group; | |
920 | } | |
921 | ||
922 | static void target_fabric_drop_lun( | |
923 | struct config_group *group, | |
924 | struct config_item *item) | |
925 | { | |
12d23384 NB |
926 | struct se_lun *lun = container_of(to_config_group(item), |
927 | struct se_lun, lun_group); | |
928 | struct config_item *df_item; | |
929 | struct config_group *lun_cg, *port_stat_grp; | |
930 | int i; | |
931 | ||
e3d6f909 | 932 | port_stat_grp = &lun->port_stat_grps.stat_group; |
12d23384 NB |
933 | for (i = 0; port_stat_grp->default_groups[i]; i++) { |
934 | df_item = &port_stat_grp->default_groups[i]->cg_item; | |
935 | port_stat_grp->default_groups[i] = NULL; | |
936 | config_item_put(df_item); | |
937 | } | |
938 | kfree(port_stat_grp->default_groups); | |
939 | ||
940 | lun_cg = &lun->lun_group; | |
941 | for (i = 0; lun_cg->default_groups[i]; i++) { | |
942 | df_item = &lun_cg->default_groups[i]->cg_item; | |
943 | lun_cg->default_groups[i] = NULL; | |
944 | config_item_put(df_item); | |
945 | } | |
946 | kfree(lun_cg->default_groups); | |
947 | ||
c66ac9db NB |
948 | config_item_put(item); |
949 | } | |
950 | ||
951 | static struct configfs_group_operations target_fabric_lun_group_ops = { | |
952 | .make_group = &target_fabric_make_lun, | |
953 | .drop_item = &target_fabric_drop_lun, | |
954 | }; | |
955 | ||
956 | TF_CIT_SETUP(tpg_lun, NULL, &target_fabric_lun_group_ops, NULL); | |
957 | ||
958 | /* End of tfc_tpg_lun_cit */ | |
959 | ||
960 | /* Start of tfc_tpg_attrib_cit */ | |
961 | ||
962 | CONFIGFS_EATTR_OPS(target_fabric_tpg_attrib, se_portal_group, tpg_attrib_group); | |
963 | ||
964 | static struct configfs_item_operations target_fabric_tpg_attrib_item_ops = { | |
965 | .show_attribute = target_fabric_tpg_attrib_attr_show, | |
966 | .store_attribute = target_fabric_tpg_attrib_attr_store, | |
967 | }; | |
968 | ||
969 | TF_CIT_SETUP(tpg_attrib, &target_fabric_tpg_attrib_item_ops, NULL, NULL); | |
970 | ||
971 | /* End of tfc_tpg_attrib_cit */ | |
972 | ||
e4b512e7 NB |
973 | /* Start of tfc_tpg_auth_cit */ |
974 | ||
975 | CONFIGFS_EATTR_OPS(target_fabric_tpg_auth, se_portal_group, tpg_auth_group); | |
976 | ||
977 | static struct configfs_item_operations target_fabric_tpg_auth_item_ops = { | |
978 | .show_attribute = target_fabric_tpg_auth_attr_show, | |
979 | .store_attribute = target_fabric_tpg_auth_attr_store, | |
980 | }; | |
981 | ||
982 | TF_CIT_SETUP(tpg_auth, &target_fabric_tpg_auth_item_ops, NULL, NULL); | |
983 | ||
984 | /* End of tfc_tpg_attrib_cit */ | |
985 | ||
c66ac9db NB |
986 | /* Start of tfc_tpg_param_cit */ |
987 | ||
988 | CONFIGFS_EATTR_OPS(target_fabric_tpg_param, se_portal_group, tpg_param_group); | |
989 | ||
990 | static struct configfs_item_operations target_fabric_tpg_param_item_ops = { | |
991 | .show_attribute = target_fabric_tpg_param_attr_show, | |
992 | .store_attribute = target_fabric_tpg_param_attr_store, | |
993 | }; | |
994 | ||
995 | TF_CIT_SETUP(tpg_param, &target_fabric_tpg_param_item_ops, NULL, NULL); | |
996 | ||
997 | /* End of tfc_tpg_param_cit */ | |
998 | ||
999 | /* Start of tfc_tpg_base_cit */ | |
1000 | /* | |
1001 | * For use with TF_TPG_ATTR() and TF_TPG_ATTR_RO() | |
1002 | */ | |
1003 | CONFIGFS_EATTR_OPS(target_fabric_tpg, se_portal_group, tpg_group); | |
1004 | ||
1f6fe7cb NB |
1005 | static void target_fabric_tpg_release(struct config_item *item) |
1006 | { | |
1007 | struct se_portal_group *se_tpg = container_of(to_config_group(item), | |
1008 | struct se_portal_group, tpg_group); | |
1009 | struct se_wwn *wwn = se_tpg->se_tpg_wwn; | |
1010 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
1011 | ||
1012 | tf->tf_ops.fabric_drop_tpg(se_tpg); | |
1013 | } | |
1014 | ||
c66ac9db | 1015 | static struct configfs_item_operations target_fabric_tpg_base_item_ops = { |
1f6fe7cb | 1016 | .release = target_fabric_tpg_release, |
c66ac9db NB |
1017 | .show_attribute = target_fabric_tpg_attr_show, |
1018 | .store_attribute = target_fabric_tpg_attr_store, | |
1019 | }; | |
1020 | ||
1021 | TF_CIT_SETUP(tpg_base, &target_fabric_tpg_base_item_ops, NULL, NULL); | |
1022 | ||
1023 | /* End of tfc_tpg_base_cit */ | |
1024 | ||
1025 | /* Start of tfc_tpg_cit */ | |
1026 | ||
1027 | static struct config_group *target_fabric_make_tpg( | |
1028 | struct config_group *group, | |
1029 | const char *name) | |
1030 | { | |
1031 | struct se_wwn *wwn = container_of(group, struct se_wwn, wwn_group); | |
1032 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
1033 | struct se_portal_group *se_tpg; | |
1034 | ||
6708bb27 AG |
1035 | if (!tf->tf_ops.fabric_make_tpg) { |
1036 | pr_err("tf->tf_ops.fabric_make_tpg is NULL\n"); | |
c66ac9db NB |
1037 | return ERR_PTR(-ENOSYS); |
1038 | } | |
1039 | ||
1040 | se_tpg = tf->tf_ops.fabric_make_tpg(wwn, group, name); | |
6708bb27 | 1041 | if (!se_tpg || IS_ERR(se_tpg)) |
c66ac9db NB |
1042 | return ERR_PTR(-EINVAL); |
1043 | /* | |
1044 | * Setup default groups from pre-allocated se_tpg->tpg_default_groups | |
1045 | */ | |
1046 | se_tpg->tpg_group.default_groups = se_tpg->tpg_default_groups; | |
1047 | se_tpg->tpg_group.default_groups[0] = &se_tpg->tpg_lun_group; | |
1048 | se_tpg->tpg_group.default_groups[1] = &se_tpg->tpg_np_group; | |
1049 | se_tpg->tpg_group.default_groups[2] = &se_tpg->tpg_acl_group; | |
1050 | se_tpg->tpg_group.default_groups[3] = &se_tpg->tpg_attrib_group; | |
e4b512e7 NB |
1051 | se_tpg->tpg_group.default_groups[4] = &se_tpg->tpg_auth_group; |
1052 | se_tpg->tpg_group.default_groups[5] = &se_tpg->tpg_param_group; | |
1053 | se_tpg->tpg_group.default_groups[6] = NULL; | |
c66ac9db NB |
1054 | |
1055 | config_group_init_type_name(&se_tpg->tpg_group, name, | |
d80e224d | 1056 | &tf->tf_cit_tmpl.tfc_tpg_base_cit); |
c66ac9db | 1057 | config_group_init_type_name(&se_tpg->tpg_lun_group, "lun", |
d80e224d | 1058 | &tf->tf_cit_tmpl.tfc_tpg_lun_cit); |
c66ac9db | 1059 | config_group_init_type_name(&se_tpg->tpg_np_group, "np", |
d80e224d | 1060 | &tf->tf_cit_tmpl.tfc_tpg_np_cit); |
c66ac9db | 1061 | config_group_init_type_name(&se_tpg->tpg_acl_group, "acls", |
d80e224d | 1062 | &tf->tf_cit_tmpl.tfc_tpg_nacl_cit); |
c66ac9db | 1063 | config_group_init_type_name(&se_tpg->tpg_attrib_group, "attrib", |
d80e224d | 1064 | &tf->tf_cit_tmpl.tfc_tpg_attrib_cit); |
e4b512e7 | 1065 | config_group_init_type_name(&se_tpg->tpg_auth_group, "auth", |
d80e224d | 1066 | &tf->tf_cit_tmpl.tfc_tpg_auth_cit); |
c66ac9db | 1067 | config_group_init_type_name(&se_tpg->tpg_param_group, "param", |
d80e224d | 1068 | &tf->tf_cit_tmpl.tfc_tpg_param_cit); |
c66ac9db NB |
1069 | |
1070 | return &se_tpg->tpg_group; | |
1071 | } | |
1072 | ||
1073 | static void target_fabric_drop_tpg( | |
1074 | struct config_group *group, | |
1075 | struct config_item *item) | |
1076 | { | |
c66ac9db NB |
1077 | struct se_portal_group *se_tpg = container_of(to_config_group(item), |
1078 | struct se_portal_group, tpg_group); | |
1079 | struct config_group *tpg_cg = &se_tpg->tpg_group; | |
1080 | struct config_item *df_item; | |
1081 | int i; | |
1082 | /* | |
1083 | * Release default groups, but do not release tpg_cg->default_groups | |
1084 | * memory as it is statically allocated at se_tpg->tpg_default_groups. | |
1085 | */ | |
1086 | for (i = 0; tpg_cg->default_groups[i]; i++) { | |
1087 | df_item = &tpg_cg->default_groups[i]->cg_item; | |
1088 | tpg_cg->default_groups[i] = NULL; | |
1089 | config_item_put(df_item); | |
1090 | } | |
1091 | ||
1092 | config_item_put(item); | |
c66ac9db NB |
1093 | } |
1094 | ||
1f6fe7cb NB |
1095 | static void target_fabric_release_wwn(struct config_item *item) |
1096 | { | |
1097 | struct se_wwn *wwn = container_of(to_config_group(item), | |
1098 | struct se_wwn, wwn_group); | |
1099 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
1100 | ||
1101 | tf->tf_ops.fabric_drop_wwn(wwn); | |
1102 | } | |
1103 | ||
1104 | static struct configfs_item_operations target_fabric_tpg_item_ops = { | |
1105 | .release = target_fabric_release_wwn, | |
1106 | }; | |
1107 | ||
c66ac9db NB |
1108 | static struct configfs_group_operations target_fabric_tpg_group_ops = { |
1109 | .make_group = target_fabric_make_tpg, | |
1110 | .drop_item = target_fabric_drop_tpg, | |
1111 | }; | |
1112 | ||
1f6fe7cb NB |
1113 | TF_CIT_SETUP(tpg, &target_fabric_tpg_item_ops, &target_fabric_tpg_group_ops, |
1114 | NULL); | |
c66ac9db NB |
1115 | |
1116 | /* End of tfc_tpg_cit */ | |
1117 | ||
12d23384 NB |
1118 | /* Start of tfc_wwn_fabric_stats_cit */ |
1119 | /* | |
1120 | * This is used as a placeholder for struct se_wwn->fabric_stat_group | |
1121 | * to allow fabrics access to ->fabric_stat_group->default_groups[] | |
1122 | */ | |
1123 | TF_CIT_SETUP(wwn_fabric_stats, NULL, NULL, NULL); | |
1124 | ||
1125 | /* End of tfc_wwn_fabric_stats_cit */ | |
1126 | ||
c66ac9db NB |
1127 | /* Start of tfc_wwn_cit */ |
1128 | ||
1129 | static struct config_group *target_fabric_make_wwn( | |
1130 | struct config_group *group, | |
1131 | const char *name) | |
1132 | { | |
1133 | struct target_fabric_configfs *tf = container_of(group, | |
1134 | struct target_fabric_configfs, tf_group); | |
1135 | struct se_wwn *wwn; | |
1136 | ||
6708bb27 AG |
1137 | if (!tf->tf_ops.fabric_make_wwn) { |
1138 | pr_err("tf->tf_ops.fabric_make_wwn is NULL\n"); | |
c66ac9db NB |
1139 | return ERR_PTR(-ENOSYS); |
1140 | } | |
1141 | ||
1142 | wwn = tf->tf_ops.fabric_make_wwn(tf, group, name); | |
6708bb27 | 1143 | if (!wwn || IS_ERR(wwn)) |
c66ac9db NB |
1144 | return ERR_PTR(-EINVAL); |
1145 | ||
1146 | wwn->wwn_tf = tf; | |
12d23384 NB |
1147 | /* |
1148 | * Setup default groups from pre-allocated wwn->wwn_default_groups | |
1149 | */ | |
1150 | wwn->wwn_group.default_groups = wwn->wwn_default_groups; | |
1151 | wwn->wwn_group.default_groups[0] = &wwn->fabric_stat_group; | |
1152 | wwn->wwn_group.default_groups[1] = NULL; | |
1153 | ||
c66ac9db | 1154 | config_group_init_type_name(&wwn->wwn_group, name, |
d80e224d | 1155 | &tf->tf_cit_tmpl.tfc_tpg_cit); |
12d23384 | 1156 | config_group_init_type_name(&wwn->fabric_stat_group, "fabric_statistics", |
d80e224d | 1157 | &tf->tf_cit_tmpl.tfc_wwn_fabric_stats_cit); |
c66ac9db NB |
1158 | |
1159 | return &wwn->wwn_group; | |
1160 | } | |
1161 | ||
1162 | static void target_fabric_drop_wwn( | |
1163 | struct config_group *group, | |
1164 | struct config_item *item) | |
1165 | { | |
12d23384 NB |
1166 | struct se_wwn *wwn = container_of(to_config_group(item), |
1167 | struct se_wwn, wwn_group); | |
1168 | struct config_item *df_item; | |
1169 | struct config_group *cg = &wwn->wwn_group; | |
1170 | int i; | |
1171 | ||
1172 | for (i = 0; cg->default_groups[i]; i++) { | |
1173 | df_item = &cg->default_groups[i]->cg_item; | |
1174 | cg->default_groups[i] = NULL; | |
1175 | config_item_put(df_item); | |
1176 | } | |
1177 | ||
c66ac9db | 1178 | config_item_put(item); |
c66ac9db NB |
1179 | } |
1180 | ||
1181 | static struct configfs_group_operations target_fabric_wwn_group_ops = { | |
1182 | .make_group = target_fabric_make_wwn, | |
1183 | .drop_item = target_fabric_drop_wwn, | |
1184 | }; | |
1185 | /* | |
1186 | * For use with TF_WWN_ATTR() and TF_WWN_ATTR_RO() | |
1187 | */ | |
1188 | CONFIGFS_EATTR_OPS(target_fabric_wwn, target_fabric_configfs, tf_group); | |
1189 | ||
1190 | static struct configfs_item_operations target_fabric_wwn_item_ops = { | |
1191 | .show_attribute = target_fabric_wwn_attr_show, | |
1192 | .store_attribute = target_fabric_wwn_attr_store, | |
1193 | }; | |
1194 | ||
1195 | TF_CIT_SETUP(wwn, &target_fabric_wwn_item_ops, &target_fabric_wwn_group_ops, NULL); | |
1196 | ||
1197 | /* End of tfc_wwn_cit */ | |
1198 | ||
1199 | /* Start of tfc_discovery_cit */ | |
1200 | ||
1201 | CONFIGFS_EATTR_OPS(target_fabric_discovery, target_fabric_configfs, | |
1202 | tf_disc_group); | |
1203 | ||
1204 | static struct configfs_item_operations target_fabric_discovery_item_ops = { | |
1205 | .show_attribute = target_fabric_discovery_attr_show, | |
1206 | .store_attribute = target_fabric_discovery_attr_store, | |
1207 | }; | |
1208 | ||
1209 | TF_CIT_SETUP(discovery, &target_fabric_discovery_item_ops, NULL, NULL); | |
1210 | ||
1211 | /* End of tfc_discovery_cit */ | |
1212 | ||
1213 | int target_fabric_setup_cits(struct target_fabric_configfs *tf) | |
1214 | { | |
1215 | target_fabric_setup_discovery_cit(tf); | |
1216 | target_fabric_setup_wwn_cit(tf); | |
12d23384 | 1217 | target_fabric_setup_wwn_fabric_stats_cit(tf); |
c66ac9db NB |
1218 | target_fabric_setup_tpg_cit(tf); |
1219 | target_fabric_setup_tpg_base_cit(tf); | |
1220 | target_fabric_setup_tpg_port_cit(tf); | |
12d23384 | 1221 | target_fabric_setup_tpg_port_stat_cit(tf); |
c66ac9db NB |
1222 | target_fabric_setup_tpg_lun_cit(tf); |
1223 | target_fabric_setup_tpg_np_cit(tf); | |
1224 | target_fabric_setup_tpg_np_base_cit(tf); | |
1225 | target_fabric_setup_tpg_attrib_cit(tf); | |
e4b512e7 | 1226 | target_fabric_setup_tpg_auth_cit(tf); |
c66ac9db NB |
1227 | target_fabric_setup_tpg_param_cit(tf); |
1228 | target_fabric_setup_tpg_nacl_cit(tf); | |
1229 | target_fabric_setup_tpg_nacl_base_cit(tf); | |
1230 | target_fabric_setup_tpg_nacl_attrib_cit(tf); | |
1231 | target_fabric_setup_tpg_nacl_auth_cit(tf); | |
1232 | target_fabric_setup_tpg_nacl_param_cit(tf); | |
12d23384 | 1233 | target_fabric_setup_tpg_nacl_stat_cit(tf); |
c66ac9db | 1234 | target_fabric_setup_tpg_mappedlun_cit(tf); |
12d23384 | 1235 | target_fabric_setup_tpg_mappedlun_stat_cit(tf); |
c66ac9db NB |
1236 | |
1237 | return 0; | |
1238 | } |