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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 | * | |
12d23384 NB |
7 | * Copyright (c) 2010,2011 Rising Tide Systems |
8 | * Copyright (c) 2010,2011 Linux-iSCSI.org | |
c66ac9db | 9 | * |
12d23384 | 10 | * Copyright (c) Nicholas A. Bellinger <nab@linux-iscsi.org> |
c66ac9db NB |
11 | * |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License as published by | |
14 | * the Free Software Foundation; either version 2 of the License, or | |
15 | * (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | ****************************************************************************/ | |
22 | ||
23 | #include <linux/module.h> | |
24 | #include <linux/moduleparam.h> | |
c66ac9db NB |
25 | #include <generated/utsrelease.h> |
26 | #include <linux/utsname.h> | |
27 | #include <linux/init.h> | |
28 | #include <linux/fs.h> | |
29 | #include <linux/namei.h> | |
30 | #include <linux/slab.h> | |
31 | #include <linux/types.h> | |
32 | #include <linux/delay.h> | |
33 | #include <linux/unistd.h> | |
34 | #include <linux/string.h> | |
35 | #include <linux/syscalls.h> | |
36 | #include <linux/configfs.h> | |
37 | ||
38 | #include <target/target_core_base.h> | |
c4795fb2 | 39 | #include <target/target_core_fabric.h> |
c66ac9db NB |
40 | #include <target/target_core_fabric_configfs.h> |
41 | #include <target/target_core_configfs.h> | |
42 | #include <target/configfs_macros.h> | |
43 | ||
e26d99ae | 44 | #include "target_core_internal.h" |
c66ac9db | 45 | #include "target_core_alua.h" |
c66ac9db NB |
46 | #include "target_core_pr.h" |
47 | ||
48 | #define TF_CIT_SETUP(_name, _item_ops, _group_ops, _attrs) \ | |
49 | static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf) \ | |
50 | { \ | |
51 | struct target_fabric_configfs_template *tfc = &tf->tf_cit_tmpl; \ | |
52 | struct config_item_type *cit = &tfc->tfc_##_name##_cit; \ | |
53 | \ | |
54 | cit->ct_item_ops = _item_ops; \ | |
55 | cit->ct_group_ops = _group_ops; \ | |
56 | cit->ct_attrs = _attrs; \ | |
57 | cit->ct_owner = tf->tf_module; \ | |
6708bb27 | 58 | pr_debug("Setup generic %s\n", __stringify(_name)); \ |
c66ac9db NB |
59 | } |
60 | ||
61 | /* Start of tfc_tpg_mappedlun_cit */ | |
62 | ||
63 | static int target_fabric_mappedlun_link( | |
64 | struct config_item *lun_acl_ci, | |
65 | struct config_item *lun_ci) | |
66 | { | |
67 | struct se_dev_entry *deve; | |
68 | struct se_lun *lun = container_of(to_config_group(lun_ci), | |
69 | struct se_lun, lun_group); | |
70 | struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci), | |
71 | struct se_lun_acl, se_lun_group); | |
72 | struct se_portal_group *se_tpg; | |
73 | struct config_item *nacl_ci, *tpg_ci, *tpg_ci_s, *wwn_ci, *wwn_ci_s; | |
74 | int ret = 0, lun_access; | |
75 | /* | |
76 | * Ensure that the source port exists | |
77 | */ | |
6708bb27 AG |
78 | if (!lun->lun_sep || !lun->lun_sep->sep_tpg) { |
79 | pr_err("Source se_lun->lun_sep or lun->lun_sep->sep" | |
c66ac9db NB |
80 | "_tpg does not exist\n"); |
81 | return -EINVAL; | |
82 | } | |
83 | se_tpg = lun->lun_sep->sep_tpg; | |
84 | ||
85 | nacl_ci = &lun_acl_ci->ci_parent->ci_group->cg_item; | |
86 | tpg_ci = &nacl_ci->ci_group->cg_item; | |
87 | wwn_ci = &tpg_ci->ci_group->cg_item; | |
88 | tpg_ci_s = &lun_ci->ci_parent->ci_group->cg_item; | |
89 | wwn_ci_s = &tpg_ci_s->ci_group->cg_item; | |
90 | /* | |
91 | * Make sure the SymLink is going to the same $FABRIC/$WWN/tpgt_$TPGT | |
92 | */ | |
93 | if (strcmp(config_item_name(wwn_ci), config_item_name(wwn_ci_s))) { | |
6708bb27 | 94 | pr_err("Illegal Initiator ACL SymLink outside of %s\n", |
c66ac9db NB |
95 | config_item_name(wwn_ci)); |
96 | return -EINVAL; | |
97 | } | |
98 | if (strcmp(config_item_name(tpg_ci), config_item_name(tpg_ci_s))) { | |
6708bb27 | 99 | pr_err("Illegal Initiator ACL Symlink outside of %s" |
c66ac9db NB |
100 | " TPGT: %s\n", config_item_name(wwn_ci), |
101 | config_item_name(tpg_ci)); | |
102 | return -EINVAL; | |
103 | } | |
104 | /* | |
105 | * If this struct se_node_acl was dynamically generated with | |
106 | * tpg_1/attrib/generate_node_acls=1, use the existing deve->lun_flags, | |
107 | * which be will write protected (READ-ONLY) when | |
108 | * tpg_1/attrib/demo_mode_write_protect=1 | |
109 | */ | |
110 | spin_lock_irq(&lacl->se_lun_nacl->device_list_lock); | |
111 | deve = &lacl->se_lun_nacl->device_list[lacl->mapped_lun]; | |
112 | if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) | |
113 | lun_access = deve->lun_flags; | |
114 | else | |
115 | lun_access = | |
e3d6f909 | 116 | (se_tpg->se_tpg_tfo->tpg_check_prod_mode_write_protect( |
c66ac9db NB |
117 | se_tpg)) ? TRANSPORT_LUNFLAGS_READ_ONLY : |
118 | TRANSPORT_LUNFLAGS_READ_WRITE; | |
119 | spin_unlock_irq(&lacl->se_lun_nacl->device_list_lock); | |
120 | /* | |
121 | * Determine the actual mapped LUN value user wants.. | |
122 | * | |
123 | * This value is what the SCSI Initiator actually sees the | |
124 | * iscsi/$IQN/$TPGT/lun/lun_* as on their SCSI Initiator Ports. | |
125 | */ | |
126 | ret = core_dev_add_initiator_node_lun_acl(se_tpg, lacl, | |
127 | lun->unpacked_lun, lun_access); | |
128 | ||
129 | return (ret < 0) ? -EINVAL : 0; | |
130 | } | |
131 | ||
132 | static int target_fabric_mappedlun_unlink( | |
133 | struct config_item *lun_acl_ci, | |
134 | struct config_item *lun_ci) | |
135 | { | |
136 | struct se_lun *lun; | |
137 | struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci), | |
138 | struct se_lun_acl, se_lun_group); | |
139 | struct se_node_acl *nacl = lacl->se_lun_nacl; | |
140 | struct se_dev_entry *deve = &nacl->device_list[lacl->mapped_lun]; | |
141 | struct se_portal_group *se_tpg; | |
142 | /* | |
143 | * Determine if the underlying MappedLUN has already been released.. | |
144 | */ | |
6708bb27 | 145 | if (!deve->se_lun) |
c66ac9db NB |
146 | return 0; |
147 | ||
148 | lun = container_of(to_config_group(lun_ci), struct se_lun, lun_group); | |
149 | se_tpg = lun->lun_sep->sep_tpg; | |
150 | ||
151 | core_dev_del_initiator_node_lun_acl(se_tpg, lun, lacl); | |
152 | return 0; | |
153 | } | |
154 | ||
155 | CONFIGFS_EATTR_STRUCT(target_fabric_mappedlun, se_lun_acl); | |
156 | #define TCM_MAPPEDLUN_ATTR(_name, _mode) \ | |
157 | static struct target_fabric_mappedlun_attribute target_fabric_mappedlun_##_name = \ | |
158 | __CONFIGFS_EATTR(_name, _mode, \ | |
159 | target_fabric_mappedlun_show_##_name, \ | |
160 | target_fabric_mappedlun_store_##_name); | |
161 | ||
162 | static ssize_t target_fabric_mappedlun_show_write_protect( | |
163 | struct se_lun_acl *lacl, | |
164 | char *page) | |
165 | { | |
166 | struct se_node_acl *se_nacl = lacl->se_lun_nacl; | |
167 | struct se_dev_entry *deve; | |
168 | ssize_t len; | |
169 | ||
170 | spin_lock_irq(&se_nacl->device_list_lock); | |
171 | deve = &se_nacl->device_list[lacl->mapped_lun]; | |
172 | len = sprintf(page, "%d\n", | |
173 | (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY) ? | |
174 | 1 : 0); | |
175 | spin_unlock_irq(&se_nacl->device_list_lock); | |
176 | ||
177 | return len; | |
178 | } | |
179 | ||
180 | static ssize_t target_fabric_mappedlun_store_write_protect( | |
181 | struct se_lun_acl *lacl, | |
182 | const char *page, | |
183 | size_t count) | |
184 | { | |
185 | struct se_node_acl *se_nacl = lacl->se_lun_nacl; | |
186 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
187 | unsigned long op; | |
188 | ||
189 | if (strict_strtoul(page, 0, &op)) | |
190 | return -EINVAL; | |
191 | ||
192 | if ((op != 1) && (op != 0)) | |
193 | return -EINVAL; | |
194 | ||
195 | core_update_device_list_access(lacl->mapped_lun, (op) ? | |
196 | TRANSPORT_LUNFLAGS_READ_ONLY : | |
197 | TRANSPORT_LUNFLAGS_READ_WRITE, | |
198 | lacl->se_lun_nacl); | |
199 | ||
6708bb27 | 200 | pr_debug("%s_ConfigFS: Changed Initiator ACL: %s" |
c66ac9db | 201 | " Mapped LUN: %u Write Protect bit to %s\n", |
e3d6f909 | 202 | se_tpg->se_tpg_tfo->get_fabric_name(), |
c66ac9db NB |
203 | lacl->initiatorname, lacl->mapped_lun, (op) ? "ON" : "OFF"); |
204 | ||
205 | return count; | |
206 | ||
207 | } | |
208 | ||
209 | TCM_MAPPEDLUN_ATTR(write_protect, S_IRUGO | S_IWUSR); | |
210 | ||
211 | CONFIGFS_EATTR_OPS(target_fabric_mappedlun, se_lun_acl, se_lun_group); | |
212 | ||
1f6fe7cb NB |
213 | static void target_fabric_mappedlun_release(struct config_item *item) |
214 | { | |
215 | struct se_lun_acl *lacl = container_of(to_config_group(item), | |
216 | struct se_lun_acl, se_lun_group); | |
217 | struct se_portal_group *se_tpg = lacl->se_lun_nacl->se_tpg; | |
218 | ||
219 | core_dev_free_initiator_node_lun_acl(se_tpg, lacl); | |
220 | } | |
221 | ||
c66ac9db NB |
222 | static struct configfs_attribute *target_fabric_mappedlun_attrs[] = { |
223 | &target_fabric_mappedlun_write_protect.attr, | |
224 | NULL, | |
225 | }; | |
226 | ||
227 | static struct configfs_item_operations target_fabric_mappedlun_item_ops = { | |
1f6fe7cb | 228 | .release = target_fabric_mappedlun_release, |
c66ac9db NB |
229 | .show_attribute = target_fabric_mappedlun_attr_show, |
230 | .store_attribute = target_fabric_mappedlun_attr_store, | |
231 | .allow_link = target_fabric_mappedlun_link, | |
232 | .drop_link = target_fabric_mappedlun_unlink, | |
233 | }; | |
234 | ||
235 | TF_CIT_SETUP(tpg_mappedlun, &target_fabric_mappedlun_item_ops, NULL, | |
236 | target_fabric_mappedlun_attrs); | |
237 | ||
238 | /* End of tfc_tpg_mappedlun_cit */ | |
239 | ||
12d23384 NB |
240 | /* Start of tfc_tpg_mappedlun_port_cit */ |
241 | ||
242 | static struct config_group *target_core_mappedlun_stat_mkdir( | |
243 | struct config_group *group, | |
244 | const char *name) | |
245 | { | |
246 | return ERR_PTR(-ENOSYS); | |
247 | } | |
248 | ||
249 | static void target_core_mappedlun_stat_rmdir( | |
250 | struct config_group *group, | |
251 | struct config_item *item) | |
252 | { | |
253 | return; | |
254 | } | |
255 | ||
256 | static struct configfs_group_operations target_fabric_mappedlun_stat_group_ops = { | |
257 | .make_group = target_core_mappedlun_stat_mkdir, | |
258 | .drop_item = target_core_mappedlun_stat_rmdir, | |
259 | }; | |
260 | ||
261 | TF_CIT_SETUP(tpg_mappedlun_stat, NULL, &target_fabric_mappedlun_stat_group_ops, | |
262 | NULL); | |
263 | ||
264 | /* End of tfc_tpg_mappedlun_port_cit */ | |
265 | ||
c66ac9db NB |
266 | /* Start of tfc_tpg_nacl_attrib_cit */ |
267 | ||
268 | CONFIGFS_EATTR_OPS(target_fabric_nacl_attrib, se_node_acl, acl_attrib_group); | |
269 | ||
270 | static struct configfs_item_operations target_fabric_nacl_attrib_item_ops = { | |
271 | .show_attribute = target_fabric_nacl_attrib_attr_show, | |
272 | .store_attribute = target_fabric_nacl_attrib_attr_store, | |
273 | }; | |
274 | ||
275 | TF_CIT_SETUP(tpg_nacl_attrib, &target_fabric_nacl_attrib_item_ops, NULL, NULL); | |
276 | ||
277 | /* End of tfc_tpg_nacl_attrib_cit */ | |
278 | ||
279 | /* Start of tfc_tpg_nacl_auth_cit */ | |
280 | ||
281 | CONFIGFS_EATTR_OPS(target_fabric_nacl_auth, se_node_acl, acl_auth_group); | |
282 | ||
283 | static struct configfs_item_operations target_fabric_nacl_auth_item_ops = { | |
284 | .show_attribute = target_fabric_nacl_auth_attr_show, | |
285 | .store_attribute = target_fabric_nacl_auth_attr_store, | |
286 | }; | |
287 | ||
288 | TF_CIT_SETUP(tpg_nacl_auth, &target_fabric_nacl_auth_item_ops, NULL, NULL); | |
289 | ||
290 | /* End of tfc_tpg_nacl_auth_cit */ | |
291 | ||
292 | /* Start of tfc_tpg_nacl_param_cit */ | |
293 | ||
294 | CONFIGFS_EATTR_OPS(target_fabric_nacl_param, se_node_acl, acl_param_group); | |
295 | ||
296 | static struct configfs_item_operations target_fabric_nacl_param_item_ops = { | |
297 | .show_attribute = target_fabric_nacl_param_attr_show, | |
298 | .store_attribute = target_fabric_nacl_param_attr_store, | |
299 | }; | |
300 | ||
301 | TF_CIT_SETUP(tpg_nacl_param, &target_fabric_nacl_param_item_ops, NULL, NULL); | |
302 | ||
303 | /* End of tfc_tpg_nacl_param_cit */ | |
304 | ||
305 | /* Start of tfc_tpg_nacl_base_cit */ | |
306 | ||
307 | CONFIGFS_EATTR_OPS(target_fabric_nacl_base, se_node_acl, acl_group); | |
308 | ||
309 | static struct config_group *target_fabric_make_mappedlun( | |
310 | struct config_group *group, | |
311 | const char *name) | |
312 | { | |
313 | struct se_node_acl *se_nacl = container_of(group, | |
314 | struct se_node_acl, acl_group); | |
315 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
316 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
317 | struct se_lun_acl *lacl; | |
318 | struct config_item *acl_ci; | |
12d23384 | 319 | struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; |
c66ac9db NB |
320 | char *buf; |
321 | unsigned long mapped_lun; | |
322 | int ret = 0; | |
323 | ||
324 | acl_ci = &group->cg_item; | |
6708bb27 AG |
325 | if (!acl_ci) { |
326 | pr_err("Unable to locatel acl_ci\n"); | |
c66ac9db NB |
327 | return NULL; |
328 | } | |
329 | ||
330 | buf = kzalloc(strlen(name) + 1, GFP_KERNEL); | |
6708bb27 AG |
331 | if (!buf) { |
332 | pr_err("Unable to allocate memory for name buf\n"); | |
c66ac9db NB |
333 | return ERR_PTR(-ENOMEM); |
334 | } | |
335 | snprintf(buf, strlen(name) + 1, "%s", name); | |
336 | /* | |
337 | * Make sure user is creating iscsi/$IQN/$TPGT/acls/$INITIATOR/lun_$ID. | |
338 | */ | |
339 | if (strstr(buf, "lun_") != buf) { | |
6708bb27 | 340 | pr_err("Unable to locate \"lun_\" from buf: %s" |
c66ac9db NB |
341 | " name: %s\n", buf, name); |
342 | ret = -EINVAL; | |
343 | goto out; | |
344 | } | |
345 | /* | |
346 | * Determine the Mapped LUN value. This is what the SCSI Initiator | |
347 | * Port will actually see. | |
348 | */ | |
349 | if (strict_strtoul(buf + 4, 0, &mapped_lun) || mapped_lun > UINT_MAX) { | |
350 | ret = -EINVAL; | |
351 | goto out; | |
352 | } | |
353 | ||
354 | lacl = core_dev_init_initiator_node_lun_acl(se_tpg, mapped_lun, | |
355 | config_item_name(acl_ci), &ret); | |
6708bb27 | 356 | if (!lacl) { |
12d23384 | 357 | ret = -EINVAL; |
c66ac9db | 358 | goto out; |
12d23384 NB |
359 | } |
360 | ||
361 | lacl_cg = &lacl->se_lun_group; | |
362 | lacl_cg->default_groups = kzalloc(sizeof(struct config_group) * 2, | |
363 | GFP_KERNEL); | |
364 | if (!lacl_cg->default_groups) { | |
6708bb27 | 365 | pr_err("Unable to allocate lacl_cg->default_groups\n"); |
12d23384 NB |
366 | ret = -ENOMEM; |
367 | goto out; | |
368 | } | |
c66ac9db NB |
369 | |
370 | config_group_init_type_name(&lacl->se_lun_group, name, | |
371 | &TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_cit); | |
12d23384 NB |
372 | config_group_init_type_name(&lacl->ml_stat_grps.stat_group, |
373 | "statistics", &TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_stat_cit); | |
374 | lacl_cg->default_groups[0] = &lacl->ml_stat_grps.stat_group; | |
375 | lacl_cg->default_groups[1] = NULL; | |
376 | ||
e3d6f909 | 377 | ml_stat_grp = &lacl->ml_stat_grps.stat_group; |
12d23384 NB |
378 | ml_stat_grp->default_groups = kzalloc(sizeof(struct config_group) * 3, |
379 | GFP_KERNEL); | |
380 | if (!ml_stat_grp->default_groups) { | |
6708bb27 | 381 | pr_err("Unable to allocate ml_stat_grp->default_groups\n"); |
12d23384 NB |
382 | ret = -ENOMEM; |
383 | goto out; | |
384 | } | |
385 | target_stat_setup_mappedlun_default_groups(lacl); | |
c66ac9db NB |
386 | |
387 | kfree(buf); | |
388 | return &lacl->se_lun_group; | |
389 | out: | |
12d23384 NB |
390 | if (lacl_cg) |
391 | kfree(lacl_cg->default_groups); | |
c66ac9db NB |
392 | kfree(buf); |
393 | return ERR_PTR(ret); | |
394 | } | |
395 | ||
396 | static void target_fabric_drop_mappedlun( | |
397 | struct config_group *group, | |
398 | struct config_item *item) | |
399 | { | |
12d23384 NB |
400 | struct se_lun_acl *lacl = container_of(to_config_group(item), |
401 | struct se_lun_acl, se_lun_group); | |
402 | struct config_item *df_item; | |
403 | struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; | |
404 | int i; | |
405 | ||
e3d6f909 | 406 | ml_stat_grp = &lacl->ml_stat_grps.stat_group; |
12d23384 NB |
407 | for (i = 0; ml_stat_grp->default_groups[i]; i++) { |
408 | df_item = &ml_stat_grp->default_groups[i]->cg_item; | |
409 | ml_stat_grp->default_groups[i] = NULL; | |
410 | config_item_put(df_item); | |
411 | } | |
412 | kfree(ml_stat_grp->default_groups); | |
413 | ||
414 | lacl_cg = &lacl->se_lun_group; | |
415 | for (i = 0; lacl_cg->default_groups[i]; i++) { | |
416 | df_item = &lacl_cg->default_groups[i]->cg_item; | |
417 | lacl_cg->default_groups[i] = NULL; | |
418 | config_item_put(df_item); | |
419 | } | |
420 | kfree(lacl_cg->default_groups); | |
421 | ||
c66ac9db | 422 | config_item_put(item); |
1f6fe7cb NB |
423 | } |
424 | ||
425 | static void target_fabric_nacl_base_release(struct config_item *item) | |
426 | { | |
427 | struct se_node_acl *se_nacl = container_of(to_config_group(item), | |
428 | struct se_node_acl, acl_group); | |
429 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
430 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
431 | ||
432 | tf->tf_ops.fabric_drop_nodeacl(se_nacl); | |
c66ac9db NB |
433 | } |
434 | ||
435 | static struct configfs_item_operations target_fabric_nacl_base_item_ops = { | |
1f6fe7cb | 436 | .release = target_fabric_nacl_base_release, |
c66ac9db NB |
437 | .show_attribute = target_fabric_nacl_base_attr_show, |
438 | .store_attribute = target_fabric_nacl_base_attr_store, | |
439 | }; | |
440 | ||
441 | static struct configfs_group_operations target_fabric_nacl_base_group_ops = { | |
442 | .make_group = target_fabric_make_mappedlun, | |
443 | .drop_item = target_fabric_drop_mappedlun, | |
444 | }; | |
445 | ||
446 | TF_CIT_SETUP(tpg_nacl_base, &target_fabric_nacl_base_item_ops, | |
447 | &target_fabric_nacl_base_group_ops, NULL); | |
448 | ||
449 | /* End of tfc_tpg_nacl_base_cit */ | |
450 | ||
12d23384 NB |
451 | /* Start of tfc_node_fabric_stats_cit */ |
452 | /* | |
453 | * This is used as a placeholder for struct se_node_acl->acl_fabric_stat_group | |
454 | * to allow fabrics access to ->acl_fabric_stat_group->default_groups[] | |
455 | */ | |
456 | TF_CIT_SETUP(tpg_nacl_stat, NULL, NULL, NULL); | |
457 | ||
458 | /* End of tfc_wwn_fabric_stats_cit */ | |
459 | ||
c66ac9db NB |
460 | /* Start of tfc_tpg_nacl_cit */ |
461 | ||
462 | static struct config_group *target_fabric_make_nodeacl( | |
463 | struct config_group *group, | |
464 | const char *name) | |
465 | { | |
466 | struct se_portal_group *se_tpg = container_of(group, | |
467 | struct se_portal_group, tpg_acl_group); | |
468 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
469 | struct se_node_acl *se_nacl; | |
470 | struct config_group *nacl_cg; | |
471 | ||
6708bb27 AG |
472 | if (!tf->tf_ops.fabric_make_nodeacl) { |
473 | pr_err("tf->tf_ops.fabric_make_nodeacl is NULL\n"); | |
c66ac9db NB |
474 | return ERR_PTR(-ENOSYS); |
475 | } | |
476 | ||
477 | se_nacl = tf->tf_ops.fabric_make_nodeacl(se_tpg, group, name); | |
478 | if (IS_ERR(se_nacl)) | |
e1750ba2 | 479 | return ERR_CAST(se_nacl); |
c66ac9db NB |
480 | |
481 | nacl_cg = &se_nacl->acl_group; | |
482 | nacl_cg->default_groups = se_nacl->acl_default_groups; | |
483 | nacl_cg->default_groups[0] = &se_nacl->acl_attrib_group; | |
484 | nacl_cg->default_groups[1] = &se_nacl->acl_auth_group; | |
485 | nacl_cg->default_groups[2] = &se_nacl->acl_param_group; | |
12d23384 NB |
486 | nacl_cg->default_groups[3] = &se_nacl->acl_fabric_stat_group; |
487 | nacl_cg->default_groups[4] = NULL; | |
c66ac9db NB |
488 | |
489 | config_group_init_type_name(&se_nacl->acl_group, name, | |
490 | &TF_CIT_TMPL(tf)->tfc_tpg_nacl_base_cit); | |
491 | config_group_init_type_name(&se_nacl->acl_attrib_group, "attrib", | |
492 | &TF_CIT_TMPL(tf)->tfc_tpg_nacl_attrib_cit); | |
493 | config_group_init_type_name(&se_nacl->acl_auth_group, "auth", | |
494 | &TF_CIT_TMPL(tf)->tfc_tpg_nacl_auth_cit); | |
495 | config_group_init_type_name(&se_nacl->acl_param_group, "param", | |
496 | &TF_CIT_TMPL(tf)->tfc_tpg_nacl_param_cit); | |
12d23384 NB |
497 | config_group_init_type_name(&se_nacl->acl_fabric_stat_group, |
498 | "fabric_statistics", | |
499 | &TF_CIT_TMPL(tf)->tfc_tpg_nacl_stat_cit); | |
c66ac9db NB |
500 | |
501 | return &se_nacl->acl_group; | |
502 | } | |
503 | ||
504 | static void target_fabric_drop_nodeacl( | |
505 | struct config_group *group, | |
506 | struct config_item *item) | |
507 | { | |
c66ac9db NB |
508 | struct se_node_acl *se_nacl = container_of(to_config_group(item), |
509 | struct se_node_acl, acl_group); | |
510 | struct config_item *df_item; | |
511 | struct config_group *nacl_cg; | |
512 | int i; | |
513 | ||
514 | nacl_cg = &se_nacl->acl_group; | |
515 | for (i = 0; nacl_cg->default_groups[i]; i++) { | |
516 | df_item = &nacl_cg->default_groups[i]->cg_item; | |
517 | nacl_cg->default_groups[i] = NULL; | |
518 | config_item_put(df_item); | |
519 | } | |
1f6fe7cb NB |
520 | /* |
521 | * struct se_node_acl free is done in target_fabric_nacl_base_release() | |
522 | */ | |
c66ac9db | 523 | config_item_put(item); |
c66ac9db NB |
524 | } |
525 | ||
526 | static struct configfs_group_operations target_fabric_nacl_group_ops = { | |
527 | .make_group = target_fabric_make_nodeacl, | |
528 | .drop_item = target_fabric_drop_nodeacl, | |
529 | }; | |
530 | ||
531 | TF_CIT_SETUP(tpg_nacl, NULL, &target_fabric_nacl_group_ops, NULL); | |
532 | ||
533 | /* End of tfc_tpg_nacl_cit */ | |
534 | ||
535 | /* Start of tfc_tpg_np_base_cit */ | |
536 | ||
537 | CONFIGFS_EATTR_OPS(target_fabric_np_base, se_tpg_np, tpg_np_group); | |
538 | ||
1f6fe7cb NB |
539 | static void target_fabric_np_base_release(struct config_item *item) |
540 | { | |
541 | struct se_tpg_np *se_tpg_np = container_of(to_config_group(item), | |
542 | struct se_tpg_np, tpg_np_group); | |
543 | struct se_portal_group *se_tpg = se_tpg_np->tpg_np_parent; | |
544 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
545 | ||
546 | tf->tf_ops.fabric_drop_np(se_tpg_np); | |
547 | } | |
548 | ||
c66ac9db | 549 | static struct configfs_item_operations target_fabric_np_base_item_ops = { |
1f6fe7cb | 550 | .release = target_fabric_np_base_release, |
c66ac9db NB |
551 | .show_attribute = target_fabric_np_base_attr_show, |
552 | .store_attribute = target_fabric_np_base_attr_store, | |
553 | }; | |
554 | ||
555 | TF_CIT_SETUP(tpg_np_base, &target_fabric_np_base_item_ops, NULL, NULL); | |
556 | ||
557 | /* End of tfc_tpg_np_base_cit */ | |
558 | ||
559 | /* Start of tfc_tpg_np_cit */ | |
560 | ||
561 | static struct config_group *target_fabric_make_np( | |
562 | struct config_group *group, | |
563 | const char *name) | |
564 | { | |
565 | struct se_portal_group *se_tpg = container_of(group, | |
566 | struct se_portal_group, tpg_np_group); | |
567 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
568 | struct se_tpg_np *se_tpg_np; | |
569 | ||
6708bb27 AG |
570 | if (!tf->tf_ops.fabric_make_np) { |
571 | pr_err("tf->tf_ops.fabric_make_np is NULL\n"); | |
c66ac9db NB |
572 | return ERR_PTR(-ENOSYS); |
573 | } | |
574 | ||
575 | se_tpg_np = tf->tf_ops.fabric_make_np(se_tpg, group, name); | |
6708bb27 | 576 | if (!se_tpg_np || IS_ERR(se_tpg_np)) |
c66ac9db NB |
577 | return ERR_PTR(-EINVAL); |
578 | ||
1f6fe7cb | 579 | se_tpg_np->tpg_np_parent = se_tpg; |
c66ac9db NB |
580 | config_group_init_type_name(&se_tpg_np->tpg_np_group, name, |
581 | &TF_CIT_TMPL(tf)->tfc_tpg_np_base_cit); | |
582 | ||
583 | return &se_tpg_np->tpg_np_group; | |
584 | } | |
585 | ||
586 | static void target_fabric_drop_np( | |
587 | struct config_group *group, | |
588 | struct config_item *item) | |
589 | { | |
1f6fe7cb NB |
590 | /* |
591 | * struct se_tpg_np is released via target_fabric_np_base_release() | |
592 | */ | |
c66ac9db | 593 | config_item_put(item); |
c66ac9db NB |
594 | } |
595 | ||
596 | static struct configfs_group_operations target_fabric_np_group_ops = { | |
597 | .make_group = &target_fabric_make_np, | |
598 | .drop_item = &target_fabric_drop_np, | |
599 | }; | |
600 | ||
601 | TF_CIT_SETUP(tpg_np, NULL, &target_fabric_np_group_ops, NULL); | |
602 | ||
603 | /* End of tfc_tpg_np_cit */ | |
604 | ||
605 | /* Start of tfc_tpg_port_cit */ | |
606 | ||
607 | CONFIGFS_EATTR_STRUCT(target_fabric_port, se_lun); | |
608 | #define TCM_PORT_ATTR(_name, _mode) \ | |
609 | static struct target_fabric_port_attribute target_fabric_port_##_name = \ | |
610 | __CONFIGFS_EATTR(_name, _mode, \ | |
611 | target_fabric_port_show_attr_##_name, \ | |
612 | target_fabric_port_store_attr_##_name); | |
613 | ||
614 | #define TCM_PORT_ATTOR_RO(_name) \ | |
615 | __CONFIGFS_EATTR_RO(_name, \ | |
616 | target_fabric_port_show_attr_##_name); | |
617 | ||
618 | /* | |
619 | * alua_tg_pt_gp | |
620 | */ | |
621 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_gp( | |
622 | struct se_lun *lun, | |
623 | char *page) | |
624 | { | |
6708bb27 | 625 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
626 | return -ENODEV; |
627 | ||
628 | return core_alua_show_tg_pt_gp_info(lun->lun_sep, page); | |
629 | } | |
630 | ||
631 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_gp( | |
632 | struct se_lun *lun, | |
633 | const char *page, | |
634 | size_t count) | |
635 | { | |
6708bb27 | 636 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
637 | return -ENODEV; |
638 | ||
639 | return core_alua_store_tg_pt_gp_info(lun->lun_sep, page, count); | |
640 | } | |
641 | ||
642 | TCM_PORT_ATTR(alua_tg_pt_gp, S_IRUGO | S_IWUSR); | |
643 | ||
644 | /* | |
645 | * alua_tg_pt_offline | |
646 | */ | |
647 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_offline( | |
648 | struct se_lun *lun, | |
649 | char *page) | |
650 | { | |
6708bb27 | 651 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
652 | return -ENODEV; |
653 | ||
654 | return core_alua_show_offline_bit(lun, page); | |
655 | } | |
656 | ||
657 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_offline( | |
658 | struct se_lun *lun, | |
659 | const char *page, | |
660 | size_t count) | |
661 | { | |
6708bb27 | 662 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
663 | return -ENODEV; |
664 | ||
665 | return core_alua_store_offline_bit(lun, page, count); | |
666 | } | |
667 | ||
668 | TCM_PORT_ATTR(alua_tg_pt_offline, S_IRUGO | S_IWUSR); | |
669 | ||
670 | /* | |
671 | * alua_tg_pt_status | |
672 | */ | |
673 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_status( | |
674 | struct se_lun *lun, | |
675 | char *page) | |
676 | { | |
6708bb27 | 677 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
678 | return -ENODEV; |
679 | ||
680 | return core_alua_show_secondary_status(lun, page); | |
681 | } | |
682 | ||
683 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_status( | |
684 | struct se_lun *lun, | |
685 | const char *page, | |
686 | size_t count) | |
687 | { | |
6708bb27 | 688 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
689 | return -ENODEV; |
690 | ||
691 | return core_alua_store_secondary_status(lun, page, count); | |
692 | } | |
693 | ||
694 | TCM_PORT_ATTR(alua_tg_pt_status, S_IRUGO | S_IWUSR); | |
695 | ||
696 | /* | |
697 | * alua_tg_pt_write_md | |
698 | */ | |
699 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_write_md( | |
700 | struct se_lun *lun, | |
701 | char *page) | |
702 | { | |
6708bb27 | 703 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
704 | return -ENODEV; |
705 | ||
706 | return core_alua_show_secondary_write_metadata(lun, page); | |
707 | } | |
708 | ||
709 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_write_md( | |
710 | struct se_lun *lun, | |
711 | const char *page, | |
712 | size_t count) | |
713 | { | |
6708bb27 | 714 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
715 | return -ENODEV; |
716 | ||
717 | return core_alua_store_secondary_write_metadata(lun, page, count); | |
718 | } | |
719 | ||
720 | TCM_PORT_ATTR(alua_tg_pt_write_md, S_IRUGO | S_IWUSR); | |
721 | ||
722 | ||
723 | static struct configfs_attribute *target_fabric_port_attrs[] = { | |
724 | &target_fabric_port_alua_tg_pt_gp.attr, | |
725 | &target_fabric_port_alua_tg_pt_offline.attr, | |
726 | &target_fabric_port_alua_tg_pt_status.attr, | |
727 | &target_fabric_port_alua_tg_pt_write_md.attr, | |
728 | NULL, | |
729 | }; | |
730 | ||
731 | CONFIGFS_EATTR_OPS(target_fabric_port, se_lun, lun_group); | |
732 | ||
733 | static int target_fabric_port_link( | |
734 | struct config_item *lun_ci, | |
735 | struct config_item *se_dev_ci) | |
736 | { | |
737 | struct config_item *tpg_ci; | |
738 | struct se_device *dev; | |
739 | struct se_lun *lun = container_of(to_config_group(lun_ci), | |
740 | struct se_lun, lun_group); | |
741 | struct se_lun *lun_p; | |
742 | struct se_portal_group *se_tpg; | |
743 | struct se_subsystem_dev *se_dev = container_of( | |
744 | to_config_group(se_dev_ci), struct se_subsystem_dev, | |
745 | se_dev_group); | |
746 | struct target_fabric_configfs *tf; | |
747 | int ret; | |
748 | ||
749 | tpg_ci = &lun_ci->ci_parent->ci_group->cg_item; | |
750 | se_tpg = container_of(to_config_group(tpg_ci), | |
751 | struct se_portal_group, tpg_group); | |
752 | tf = se_tpg->se_tpg_wwn->wwn_tf; | |
753 | ||
754 | if (lun->lun_se_dev != NULL) { | |
6708bb27 | 755 | pr_err("Port Symlink already exists\n"); |
c66ac9db NB |
756 | return -EEXIST; |
757 | } | |
758 | ||
759 | dev = se_dev->se_dev_ptr; | |
6708bb27 AG |
760 | if (!dev) { |
761 | pr_err("Unable to locate struct se_device pointer from" | |
c66ac9db NB |
762 | " %s\n", config_item_name(se_dev_ci)); |
763 | ret = -ENODEV; | |
764 | goto out; | |
765 | } | |
766 | ||
767 | lun_p = core_dev_add_lun(se_tpg, dev->se_hba, dev, | |
768 | lun->unpacked_lun); | |
8d9efe53 | 769 | if (IS_ERR(lun_p)) { |
6708bb27 | 770 | pr_err("core_dev_add_lun() failed\n"); |
8d9efe53 | 771 | ret = PTR_ERR(lun_p); |
c66ac9db NB |
772 | goto out; |
773 | } | |
774 | ||
775 | if (tf->tf_ops.fabric_post_link) { | |
776 | /* | |
777 | * Call the optional fabric_post_link() to allow a | |
778 | * fabric module to setup any additional state once | |
779 | * core_dev_add_lun() has been called.. | |
780 | */ | |
781 | tf->tf_ops.fabric_post_link(se_tpg, lun); | |
782 | } | |
783 | ||
784 | return 0; | |
785 | out: | |
786 | return ret; | |
787 | } | |
788 | ||
789 | static int target_fabric_port_unlink( | |
790 | struct config_item *lun_ci, | |
791 | struct config_item *se_dev_ci) | |
792 | { | |
793 | struct se_lun *lun = container_of(to_config_group(lun_ci), | |
794 | struct se_lun, lun_group); | |
795 | struct se_portal_group *se_tpg = lun->lun_sep->sep_tpg; | |
796 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
797 | ||
798 | if (tf->tf_ops.fabric_pre_unlink) { | |
799 | /* | |
800 | * Call the optional fabric_pre_unlink() to allow a | |
801 | * fabric module to release any additional stat before | |
802 | * core_dev_del_lun() is called. | |
803 | */ | |
804 | tf->tf_ops.fabric_pre_unlink(se_tpg, lun); | |
805 | } | |
806 | ||
807 | core_dev_del_lun(se_tpg, lun->unpacked_lun); | |
808 | return 0; | |
809 | } | |
810 | ||
811 | static struct configfs_item_operations target_fabric_port_item_ops = { | |
812 | .show_attribute = target_fabric_port_attr_show, | |
813 | .store_attribute = target_fabric_port_attr_store, | |
814 | .allow_link = target_fabric_port_link, | |
815 | .drop_link = target_fabric_port_unlink, | |
816 | }; | |
817 | ||
818 | TF_CIT_SETUP(tpg_port, &target_fabric_port_item_ops, NULL, target_fabric_port_attrs); | |
819 | ||
820 | /* End of tfc_tpg_port_cit */ | |
821 | ||
12d23384 NB |
822 | /* Start of tfc_tpg_port_stat_cit */ |
823 | ||
824 | static struct config_group *target_core_port_stat_mkdir( | |
825 | struct config_group *group, | |
826 | const char *name) | |
827 | { | |
828 | return ERR_PTR(-ENOSYS); | |
829 | } | |
830 | ||
831 | static void target_core_port_stat_rmdir( | |
832 | struct config_group *group, | |
833 | struct config_item *item) | |
834 | { | |
835 | return; | |
836 | } | |
837 | ||
838 | static struct configfs_group_operations target_fabric_port_stat_group_ops = { | |
839 | .make_group = target_core_port_stat_mkdir, | |
840 | .drop_item = target_core_port_stat_rmdir, | |
841 | }; | |
842 | ||
843 | TF_CIT_SETUP(tpg_port_stat, NULL, &target_fabric_port_stat_group_ops, NULL); | |
844 | ||
845 | /* End of tfc_tpg_port_stat_cit */ | |
846 | ||
c66ac9db NB |
847 | /* Start of tfc_tpg_lun_cit */ |
848 | ||
849 | static struct config_group *target_fabric_make_lun( | |
850 | struct config_group *group, | |
851 | const char *name) | |
852 | { | |
853 | struct se_lun *lun; | |
854 | struct se_portal_group *se_tpg = container_of(group, | |
855 | struct se_portal_group, tpg_lun_group); | |
856 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
12d23384 | 857 | struct config_group *lun_cg = NULL, *port_stat_grp = NULL; |
c66ac9db | 858 | unsigned long unpacked_lun; |
12d23384 | 859 | int errno; |
c66ac9db NB |
860 | |
861 | if (strstr(name, "lun_") != name) { | |
6708bb27 | 862 | pr_err("Unable to locate \'_\" in" |
c66ac9db NB |
863 | " \"lun_$LUN_NUMBER\"\n"); |
864 | return ERR_PTR(-EINVAL); | |
865 | } | |
866 | if (strict_strtoul(name + 4, 0, &unpacked_lun) || unpacked_lun > UINT_MAX) | |
867 | return ERR_PTR(-EINVAL); | |
868 | ||
869 | lun = core_get_lun_from_tpg(se_tpg, unpacked_lun); | |
6708bb27 | 870 | if (!lun) |
c66ac9db NB |
871 | return ERR_PTR(-EINVAL); |
872 | ||
12d23384 NB |
873 | lun_cg = &lun->lun_group; |
874 | lun_cg->default_groups = kzalloc(sizeof(struct config_group) * 2, | |
875 | GFP_KERNEL); | |
876 | if (!lun_cg->default_groups) { | |
6708bb27 | 877 | pr_err("Unable to allocate lun_cg->default_groups\n"); |
12d23384 NB |
878 | return ERR_PTR(-ENOMEM); |
879 | } | |
880 | ||
c66ac9db NB |
881 | config_group_init_type_name(&lun->lun_group, name, |
882 | &TF_CIT_TMPL(tf)->tfc_tpg_port_cit); | |
12d23384 NB |
883 | config_group_init_type_name(&lun->port_stat_grps.stat_group, |
884 | "statistics", &TF_CIT_TMPL(tf)->tfc_tpg_port_stat_cit); | |
885 | lun_cg->default_groups[0] = &lun->port_stat_grps.stat_group; | |
886 | lun_cg->default_groups[1] = NULL; | |
887 | ||
e3d6f909 | 888 | port_stat_grp = &lun->port_stat_grps.stat_group; |
12d23384 NB |
889 | port_stat_grp->default_groups = kzalloc(sizeof(struct config_group) * 3, |
890 | GFP_KERNEL); | |
891 | if (!port_stat_grp->default_groups) { | |
6708bb27 | 892 | pr_err("Unable to allocate port_stat_grp->default_groups\n"); |
12d23384 NB |
893 | errno = -ENOMEM; |
894 | goto out; | |
895 | } | |
896 | target_stat_setup_port_default_groups(lun); | |
c66ac9db NB |
897 | |
898 | return &lun->lun_group; | |
12d23384 NB |
899 | out: |
900 | if (lun_cg) | |
901 | kfree(lun_cg->default_groups); | |
902 | return ERR_PTR(errno); | |
c66ac9db NB |
903 | } |
904 | ||
905 | static void target_fabric_drop_lun( | |
906 | struct config_group *group, | |
907 | struct config_item *item) | |
908 | { | |
12d23384 NB |
909 | struct se_lun *lun = container_of(to_config_group(item), |
910 | struct se_lun, lun_group); | |
911 | struct config_item *df_item; | |
912 | struct config_group *lun_cg, *port_stat_grp; | |
913 | int i; | |
914 | ||
e3d6f909 | 915 | port_stat_grp = &lun->port_stat_grps.stat_group; |
12d23384 NB |
916 | for (i = 0; port_stat_grp->default_groups[i]; i++) { |
917 | df_item = &port_stat_grp->default_groups[i]->cg_item; | |
918 | port_stat_grp->default_groups[i] = NULL; | |
919 | config_item_put(df_item); | |
920 | } | |
921 | kfree(port_stat_grp->default_groups); | |
922 | ||
923 | lun_cg = &lun->lun_group; | |
924 | for (i = 0; lun_cg->default_groups[i]; i++) { | |
925 | df_item = &lun_cg->default_groups[i]->cg_item; | |
926 | lun_cg->default_groups[i] = NULL; | |
927 | config_item_put(df_item); | |
928 | } | |
929 | kfree(lun_cg->default_groups); | |
930 | ||
c66ac9db NB |
931 | config_item_put(item); |
932 | } | |
933 | ||
934 | static struct configfs_group_operations target_fabric_lun_group_ops = { | |
935 | .make_group = &target_fabric_make_lun, | |
936 | .drop_item = &target_fabric_drop_lun, | |
937 | }; | |
938 | ||
939 | TF_CIT_SETUP(tpg_lun, NULL, &target_fabric_lun_group_ops, NULL); | |
940 | ||
941 | /* End of tfc_tpg_lun_cit */ | |
942 | ||
943 | /* Start of tfc_tpg_attrib_cit */ | |
944 | ||
945 | CONFIGFS_EATTR_OPS(target_fabric_tpg_attrib, se_portal_group, tpg_attrib_group); | |
946 | ||
947 | static struct configfs_item_operations target_fabric_tpg_attrib_item_ops = { | |
948 | .show_attribute = target_fabric_tpg_attrib_attr_show, | |
949 | .store_attribute = target_fabric_tpg_attrib_attr_store, | |
950 | }; | |
951 | ||
952 | TF_CIT_SETUP(tpg_attrib, &target_fabric_tpg_attrib_item_ops, NULL, NULL); | |
953 | ||
954 | /* End of tfc_tpg_attrib_cit */ | |
955 | ||
956 | /* Start of tfc_tpg_param_cit */ | |
957 | ||
958 | CONFIGFS_EATTR_OPS(target_fabric_tpg_param, se_portal_group, tpg_param_group); | |
959 | ||
960 | static struct configfs_item_operations target_fabric_tpg_param_item_ops = { | |
961 | .show_attribute = target_fabric_tpg_param_attr_show, | |
962 | .store_attribute = target_fabric_tpg_param_attr_store, | |
963 | }; | |
964 | ||
965 | TF_CIT_SETUP(tpg_param, &target_fabric_tpg_param_item_ops, NULL, NULL); | |
966 | ||
967 | /* End of tfc_tpg_param_cit */ | |
968 | ||
969 | /* Start of tfc_tpg_base_cit */ | |
970 | /* | |
971 | * For use with TF_TPG_ATTR() and TF_TPG_ATTR_RO() | |
972 | */ | |
973 | CONFIGFS_EATTR_OPS(target_fabric_tpg, se_portal_group, tpg_group); | |
974 | ||
1f6fe7cb NB |
975 | static void target_fabric_tpg_release(struct config_item *item) |
976 | { | |
977 | struct se_portal_group *se_tpg = container_of(to_config_group(item), | |
978 | struct se_portal_group, tpg_group); | |
979 | struct se_wwn *wwn = se_tpg->se_tpg_wwn; | |
980 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
981 | ||
982 | tf->tf_ops.fabric_drop_tpg(se_tpg); | |
983 | } | |
984 | ||
c66ac9db | 985 | static struct configfs_item_operations target_fabric_tpg_base_item_ops = { |
1f6fe7cb | 986 | .release = target_fabric_tpg_release, |
c66ac9db NB |
987 | .show_attribute = target_fabric_tpg_attr_show, |
988 | .store_attribute = target_fabric_tpg_attr_store, | |
989 | }; | |
990 | ||
991 | TF_CIT_SETUP(tpg_base, &target_fabric_tpg_base_item_ops, NULL, NULL); | |
992 | ||
993 | /* End of tfc_tpg_base_cit */ | |
994 | ||
995 | /* Start of tfc_tpg_cit */ | |
996 | ||
997 | static struct config_group *target_fabric_make_tpg( | |
998 | struct config_group *group, | |
999 | const char *name) | |
1000 | { | |
1001 | struct se_wwn *wwn = container_of(group, struct se_wwn, wwn_group); | |
1002 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
1003 | struct se_portal_group *se_tpg; | |
1004 | ||
6708bb27 AG |
1005 | if (!tf->tf_ops.fabric_make_tpg) { |
1006 | pr_err("tf->tf_ops.fabric_make_tpg is NULL\n"); | |
c66ac9db NB |
1007 | return ERR_PTR(-ENOSYS); |
1008 | } | |
1009 | ||
1010 | se_tpg = tf->tf_ops.fabric_make_tpg(wwn, group, name); | |
6708bb27 | 1011 | if (!se_tpg || IS_ERR(se_tpg)) |
c66ac9db NB |
1012 | return ERR_PTR(-EINVAL); |
1013 | /* | |
1014 | * Setup default groups from pre-allocated se_tpg->tpg_default_groups | |
1015 | */ | |
1016 | se_tpg->tpg_group.default_groups = se_tpg->tpg_default_groups; | |
1017 | se_tpg->tpg_group.default_groups[0] = &se_tpg->tpg_lun_group; | |
1018 | se_tpg->tpg_group.default_groups[1] = &se_tpg->tpg_np_group; | |
1019 | se_tpg->tpg_group.default_groups[2] = &se_tpg->tpg_acl_group; | |
1020 | se_tpg->tpg_group.default_groups[3] = &se_tpg->tpg_attrib_group; | |
1021 | se_tpg->tpg_group.default_groups[4] = &se_tpg->tpg_param_group; | |
1022 | se_tpg->tpg_group.default_groups[5] = NULL; | |
1023 | ||
1024 | config_group_init_type_name(&se_tpg->tpg_group, name, | |
1025 | &TF_CIT_TMPL(tf)->tfc_tpg_base_cit); | |
1026 | config_group_init_type_name(&se_tpg->tpg_lun_group, "lun", | |
1027 | &TF_CIT_TMPL(tf)->tfc_tpg_lun_cit); | |
1028 | config_group_init_type_name(&se_tpg->tpg_np_group, "np", | |
1029 | &TF_CIT_TMPL(tf)->tfc_tpg_np_cit); | |
1030 | config_group_init_type_name(&se_tpg->tpg_acl_group, "acls", | |
1031 | &TF_CIT_TMPL(tf)->tfc_tpg_nacl_cit); | |
1032 | config_group_init_type_name(&se_tpg->tpg_attrib_group, "attrib", | |
1033 | &TF_CIT_TMPL(tf)->tfc_tpg_attrib_cit); | |
1034 | config_group_init_type_name(&se_tpg->tpg_param_group, "param", | |
1035 | &TF_CIT_TMPL(tf)->tfc_tpg_param_cit); | |
1036 | ||
1037 | return &se_tpg->tpg_group; | |
1038 | } | |
1039 | ||
1040 | static void target_fabric_drop_tpg( | |
1041 | struct config_group *group, | |
1042 | struct config_item *item) | |
1043 | { | |
c66ac9db NB |
1044 | struct se_portal_group *se_tpg = container_of(to_config_group(item), |
1045 | struct se_portal_group, tpg_group); | |
1046 | struct config_group *tpg_cg = &se_tpg->tpg_group; | |
1047 | struct config_item *df_item; | |
1048 | int i; | |
1049 | /* | |
1050 | * Release default groups, but do not release tpg_cg->default_groups | |
1051 | * memory as it is statically allocated at se_tpg->tpg_default_groups. | |
1052 | */ | |
1053 | for (i = 0; tpg_cg->default_groups[i]; i++) { | |
1054 | df_item = &tpg_cg->default_groups[i]->cg_item; | |
1055 | tpg_cg->default_groups[i] = NULL; | |
1056 | config_item_put(df_item); | |
1057 | } | |
1058 | ||
1059 | config_item_put(item); | |
c66ac9db NB |
1060 | } |
1061 | ||
1f6fe7cb NB |
1062 | static void target_fabric_release_wwn(struct config_item *item) |
1063 | { | |
1064 | struct se_wwn *wwn = container_of(to_config_group(item), | |
1065 | struct se_wwn, wwn_group); | |
1066 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
1067 | ||
1068 | tf->tf_ops.fabric_drop_wwn(wwn); | |
1069 | } | |
1070 | ||
1071 | static struct configfs_item_operations target_fabric_tpg_item_ops = { | |
1072 | .release = target_fabric_release_wwn, | |
1073 | }; | |
1074 | ||
c66ac9db NB |
1075 | static struct configfs_group_operations target_fabric_tpg_group_ops = { |
1076 | .make_group = target_fabric_make_tpg, | |
1077 | .drop_item = target_fabric_drop_tpg, | |
1078 | }; | |
1079 | ||
1f6fe7cb NB |
1080 | TF_CIT_SETUP(tpg, &target_fabric_tpg_item_ops, &target_fabric_tpg_group_ops, |
1081 | NULL); | |
c66ac9db NB |
1082 | |
1083 | /* End of tfc_tpg_cit */ | |
1084 | ||
12d23384 NB |
1085 | /* Start of tfc_wwn_fabric_stats_cit */ |
1086 | /* | |
1087 | * This is used as a placeholder for struct se_wwn->fabric_stat_group | |
1088 | * to allow fabrics access to ->fabric_stat_group->default_groups[] | |
1089 | */ | |
1090 | TF_CIT_SETUP(wwn_fabric_stats, NULL, NULL, NULL); | |
1091 | ||
1092 | /* End of tfc_wwn_fabric_stats_cit */ | |
1093 | ||
c66ac9db NB |
1094 | /* Start of tfc_wwn_cit */ |
1095 | ||
1096 | static struct config_group *target_fabric_make_wwn( | |
1097 | struct config_group *group, | |
1098 | const char *name) | |
1099 | { | |
1100 | struct target_fabric_configfs *tf = container_of(group, | |
1101 | struct target_fabric_configfs, tf_group); | |
1102 | struct se_wwn *wwn; | |
1103 | ||
6708bb27 AG |
1104 | if (!tf->tf_ops.fabric_make_wwn) { |
1105 | pr_err("tf->tf_ops.fabric_make_wwn is NULL\n"); | |
c66ac9db NB |
1106 | return ERR_PTR(-ENOSYS); |
1107 | } | |
1108 | ||
1109 | wwn = tf->tf_ops.fabric_make_wwn(tf, group, name); | |
6708bb27 | 1110 | if (!wwn || IS_ERR(wwn)) |
c66ac9db NB |
1111 | return ERR_PTR(-EINVAL); |
1112 | ||
1113 | wwn->wwn_tf = tf; | |
12d23384 NB |
1114 | /* |
1115 | * Setup default groups from pre-allocated wwn->wwn_default_groups | |
1116 | */ | |
1117 | wwn->wwn_group.default_groups = wwn->wwn_default_groups; | |
1118 | wwn->wwn_group.default_groups[0] = &wwn->fabric_stat_group; | |
1119 | wwn->wwn_group.default_groups[1] = NULL; | |
1120 | ||
c66ac9db NB |
1121 | config_group_init_type_name(&wwn->wwn_group, name, |
1122 | &TF_CIT_TMPL(tf)->tfc_tpg_cit); | |
12d23384 NB |
1123 | config_group_init_type_name(&wwn->fabric_stat_group, "fabric_statistics", |
1124 | &TF_CIT_TMPL(tf)->tfc_wwn_fabric_stats_cit); | |
c66ac9db NB |
1125 | |
1126 | return &wwn->wwn_group; | |
1127 | } | |
1128 | ||
1129 | static void target_fabric_drop_wwn( | |
1130 | struct config_group *group, | |
1131 | struct config_item *item) | |
1132 | { | |
12d23384 NB |
1133 | struct se_wwn *wwn = container_of(to_config_group(item), |
1134 | struct se_wwn, wwn_group); | |
1135 | struct config_item *df_item; | |
1136 | struct config_group *cg = &wwn->wwn_group; | |
1137 | int i; | |
1138 | ||
1139 | for (i = 0; cg->default_groups[i]; i++) { | |
1140 | df_item = &cg->default_groups[i]->cg_item; | |
1141 | cg->default_groups[i] = NULL; | |
1142 | config_item_put(df_item); | |
1143 | } | |
1144 | ||
c66ac9db | 1145 | config_item_put(item); |
c66ac9db NB |
1146 | } |
1147 | ||
1148 | static struct configfs_group_operations target_fabric_wwn_group_ops = { | |
1149 | .make_group = target_fabric_make_wwn, | |
1150 | .drop_item = target_fabric_drop_wwn, | |
1151 | }; | |
1152 | /* | |
1153 | * For use with TF_WWN_ATTR() and TF_WWN_ATTR_RO() | |
1154 | */ | |
1155 | CONFIGFS_EATTR_OPS(target_fabric_wwn, target_fabric_configfs, tf_group); | |
1156 | ||
1157 | static struct configfs_item_operations target_fabric_wwn_item_ops = { | |
1158 | .show_attribute = target_fabric_wwn_attr_show, | |
1159 | .store_attribute = target_fabric_wwn_attr_store, | |
1160 | }; | |
1161 | ||
1162 | TF_CIT_SETUP(wwn, &target_fabric_wwn_item_ops, &target_fabric_wwn_group_ops, NULL); | |
1163 | ||
1164 | /* End of tfc_wwn_cit */ | |
1165 | ||
1166 | /* Start of tfc_discovery_cit */ | |
1167 | ||
1168 | CONFIGFS_EATTR_OPS(target_fabric_discovery, target_fabric_configfs, | |
1169 | tf_disc_group); | |
1170 | ||
1171 | static struct configfs_item_operations target_fabric_discovery_item_ops = { | |
1172 | .show_attribute = target_fabric_discovery_attr_show, | |
1173 | .store_attribute = target_fabric_discovery_attr_store, | |
1174 | }; | |
1175 | ||
1176 | TF_CIT_SETUP(discovery, &target_fabric_discovery_item_ops, NULL, NULL); | |
1177 | ||
1178 | /* End of tfc_discovery_cit */ | |
1179 | ||
1180 | int target_fabric_setup_cits(struct target_fabric_configfs *tf) | |
1181 | { | |
1182 | target_fabric_setup_discovery_cit(tf); | |
1183 | target_fabric_setup_wwn_cit(tf); | |
12d23384 | 1184 | target_fabric_setup_wwn_fabric_stats_cit(tf); |
c66ac9db NB |
1185 | target_fabric_setup_tpg_cit(tf); |
1186 | target_fabric_setup_tpg_base_cit(tf); | |
1187 | target_fabric_setup_tpg_port_cit(tf); | |
12d23384 | 1188 | target_fabric_setup_tpg_port_stat_cit(tf); |
c66ac9db NB |
1189 | target_fabric_setup_tpg_lun_cit(tf); |
1190 | target_fabric_setup_tpg_np_cit(tf); | |
1191 | target_fabric_setup_tpg_np_base_cit(tf); | |
1192 | target_fabric_setup_tpg_attrib_cit(tf); | |
1193 | target_fabric_setup_tpg_param_cit(tf); | |
1194 | target_fabric_setup_tpg_nacl_cit(tf); | |
1195 | target_fabric_setup_tpg_nacl_base_cit(tf); | |
1196 | target_fabric_setup_tpg_nacl_attrib_cit(tf); | |
1197 | target_fabric_setup_tpg_nacl_auth_cit(tf); | |
1198 | target_fabric_setup_tpg_nacl_param_cit(tf); | |
12d23384 | 1199 | target_fabric_setup_tpg_nacl_stat_cit(tf); |
c66ac9db | 1200 | target_fabric_setup_tpg_mappedlun_cit(tf); |
12d23384 | 1201 | target_fabric_setup_tpg_mappedlun_stat_cit(tf); |
c66ac9db NB |
1202 | |
1203 | return 0; | |
1204 | } |