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