Commit | Line | Data |
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c66ac9db NB |
1 | /******************************************************************************* |
2 | * Filename: target_core_fabric_configfs.c | |
3 | * | |
4 | * This file contains generic fabric module configfs infrastructure for | |
5 | * TCM v4.x code | |
6 | * | |
fd9a11d7 | 7 | * (c) Copyright 2010-2012 RisingTide Systems LLC. |
c66ac9db | 8 | * |
fd9a11d7 | 9 | * Nicholas A. Bellinger <nab@linux-iscsi.org> |
c66ac9db NB |
10 | * |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or | |
14 | * (at your option) any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | ****************************************************************************/ | |
21 | ||
22 | #include <linux/module.h> | |
23 | #include <linux/moduleparam.h> | |
c66ac9db NB |
24 | #include <linux/utsname.h> |
25 | #include <linux/init.h> | |
26 | #include <linux/fs.h> | |
27 | #include <linux/namei.h> | |
28 | #include <linux/slab.h> | |
29 | #include <linux/types.h> | |
30 | #include <linux/delay.h> | |
31 | #include <linux/unistd.h> | |
32 | #include <linux/string.h> | |
33 | #include <linux/syscalls.h> | |
34 | #include <linux/configfs.h> | |
35 | ||
36 | #include <target/target_core_base.h> | |
c4795fb2 | 37 | #include <target/target_core_fabric.h> |
c66ac9db NB |
38 | #include <target/target_core_fabric_configfs.h> |
39 | #include <target/target_core_configfs.h> | |
40 | #include <target/configfs_macros.h> | |
41 | ||
e26d99ae | 42 | #include "target_core_internal.h" |
c66ac9db | 43 | #include "target_core_alua.h" |
c66ac9db NB |
44 | #include "target_core_pr.h" |
45 | ||
46 | #define TF_CIT_SETUP(_name, _item_ops, _group_ops, _attrs) \ | |
47 | static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf) \ | |
48 | { \ | |
49 | struct target_fabric_configfs_template *tfc = &tf->tf_cit_tmpl; \ | |
50 | struct config_item_type *cit = &tfc->tfc_##_name##_cit; \ | |
51 | \ | |
52 | cit->ct_item_ops = _item_ops; \ | |
53 | cit->ct_group_ops = _group_ops; \ | |
54 | cit->ct_attrs = _attrs; \ | |
55 | cit->ct_owner = tf->tf_module; \ | |
6708bb27 | 56 | pr_debug("Setup generic %s\n", __stringify(_name)); \ |
c66ac9db NB |
57 | } |
58 | ||
59 | /* Start of tfc_tpg_mappedlun_cit */ | |
60 | ||
61 | static int target_fabric_mappedlun_link( | |
62 | struct config_item *lun_acl_ci, | |
63 | struct config_item *lun_ci) | |
64 | { | |
65 | struct se_dev_entry *deve; | |
66 | struct se_lun *lun = container_of(to_config_group(lun_ci), | |
67 | struct se_lun, lun_group); | |
68 | struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci), | |
69 | struct se_lun_acl, se_lun_group); | |
70 | struct se_portal_group *se_tpg; | |
71 | struct config_item *nacl_ci, *tpg_ci, *tpg_ci_s, *wwn_ci, *wwn_ci_s; | |
72 | int ret = 0, lun_access; | |
0ff87549 NB |
73 | |
74 | if (lun->lun_link_magic != SE_LUN_LINK_MAGIC) { | |
75 | pr_err("Bad lun->lun_link_magic, not a valid lun_ci pointer:" | |
76 | " %p to struct lun: %p\n", lun_ci, lun); | |
77 | return -EFAULT; | |
78 | } | |
c66ac9db NB |
79 | /* |
80 | * Ensure that the source port exists | |
81 | */ | |
6708bb27 AG |
82 | if (!lun->lun_sep || !lun->lun_sep->sep_tpg) { |
83 | pr_err("Source se_lun->lun_sep or lun->lun_sep->sep" | |
c66ac9db NB |
84 | "_tpg does not exist\n"); |
85 | return -EINVAL; | |
86 | } | |
87 | se_tpg = lun->lun_sep->sep_tpg; | |
88 | ||
89 | nacl_ci = &lun_acl_ci->ci_parent->ci_group->cg_item; | |
90 | tpg_ci = &nacl_ci->ci_group->cg_item; | |
91 | wwn_ci = &tpg_ci->ci_group->cg_item; | |
92 | tpg_ci_s = &lun_ci->ci_parent->ci_group->cg_item; | |
93 | wwn_ci_s = &tpg_ci_s->ci_group->cg_item; | |
94 | /* | |
95 | * Make sure the SymLink is going to the same $FABRIC/$WWN/tpgt_$TPGT | |
96 | */ | |
97 | if (strcmp(config_item_name(wwn_ci), config_item_name(wwn_ci_s))) { | |
6708bb27 | 98 | pr_err("Illegal Initiator ACL SymLink outside of %s\n", |
c66ac9db NB |
99 | config_item_name(wwn_ci)); |
100 | return -EINVAL; | |
101 | } | |
102 | if (strcmp(config_item_name(tpg_ci), config_item_name(tpg_ci_s))) { | |
6708bb27 | 103 | pr_err("Illegal Initiator ACL Symlink outside of %s" |
c66ac9db NB |
104 | " TPGT: %s\n", config_item_name(wwn_ci), |
105 | config_item_name(tpg_ci)); | |
106 | return -EINVAL; | |
107 | } | |
108 | /* | |
109 | * If this struct se_node_acl was dynamically generated with | |
110 | * tpg_1/attrib/generate_node_acls=1, use the existing deve->lun_flags, | |
111 | * which be will write protected (READ-ONLY) when | |
112 | * tpg_1/attrib/demo_mode_write_protect=1 | |
113 | */ | |
114 | spin_lock_irq(&lacl->se_lun_nacl->device_list_lock); | |
f2083241 | 115 | deve = lacl->se_lun_nacl->device_list[lacl->mapped_lun]; |
c66ac9db NB |
116 | if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) |
117 | lun_access = deve->lun_flags; | |
118 | else | |
119 | lun_access = | |
e3d6f909 | 120 | (se_tpg->se_tpg_tfo->tpg_check_prod_mode_write_protect( |
c66ac9db NB |
121 | se_tpg)) ? TRANSPORT_LUNFLAGS_READ_ONLY : |
122 | TRANSPORT_LUNFLAGS_READ_WRITE; | |
123 | spin_unlock_irq(&lacl->se_lun_nacl->device_list_lock); | |
124 | /* | |
125 | * Determine the actual mapped LUN value user wants.. | |
126 | * | |
127 | * This value is what the SCSI Initiator actually sees the | |
128 | * iscsi/$IQN/$TPGT/lun/lun_* as on their SCSI Initiator Ports. | |
129 | */ | |
130 | ret = core_dev_add_initiator_node_lun_acl(se_tpg, lacl, | |
131 | lun->unpacked_lun, lun_access); | |
132 | ||
133 | return (ret < 0) ? -EINVAL : 0; | |
134 | } | |
135 | ||
136 | static int target_fabric_mappedlun_unlink( | |
137 | struct config_item *lun_acl_ci, | |
138 | struct config_item *lun_ci) | |
139 | { | |
140 | struct se_lun *lun; | |
141 | struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci), | |
142 | struct se_lun_acl, se_lun_group); | |
143 | struct se_node_acl *nacl = lacl->se_lun_nacl; | |
f2083241 | 144 | struct se_dev_entry *deve = nacl->device_list[lacl->mapped_lun]; |
c66ac9db NB |
145 | struct se_portal_group *se_tpg; |
146 | /* | |
147 | * Determine if the underlying MappedLUN has already been released.. | |
148 | */ | |
6708bb27 | 149 | if (!deve->se_lun) |
c66ac9db NB |
150 | return 0; |
151 | ||
152 | lun = container_of(to_config_group(lun_ci), struct se_lun, lun_group); | |
153 | se_tpg = lun->lun_sep->sep_tpg; | |
154 | ||
155 | core_dev_del_initiator_node_lun_acl(se_tpg, lun, lacl); | |
156 | return 0; | |
157 | } | |
158 | ||
159 | CONFIGFS_EATTR_STRUCT(target_fabric_mappedlun, se_lun_acl); | |
160 | #define TCM_MAPPEDLUN_ATTR(_name, _mode) \ | |
161 | static struct target_fabric_mappedlun_attribute target_fabric_mappedlun_##_name = \ | |
162 | __CONFIGFS_EATTR(_name, _mode, \ | |
163 | target_fabric_mappedlun_show_##_name, \ | |
164 | target_fabric_mappedlun_store_##_name); | |
165 | ||
166 | static ssize_t target_fabric_mappedlun_show_write_protect( | |
167 | struct se_lun_acl *lacl, | |
168 | char *page) | |
169 | { | |
170 | struct se_node_acl *se_nacl = lacl->se_lun_nacl; | |
171 | struct se_dev_entry *deve; | |
172 | ssize_t len; | |
173 | ||
174 | spin_lock_irq(&se_nacl->device_list_lock); | |
f2083241 | 175 | deve = se_nacl->device_list[lacl->mapped_lun]; |
c66ac9db NB |
176 | len = sprintf(page, "%d\n", |
177 | (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY) ? | |
178 | 1 : 0); | |
179 | spin_unlock_irq(&se_nacl->device_list_lock); | |
180 | ||
181 | return len; | |
182 | } | |
183 | ||
184 | static ssize_t target_fabric_mappedlun_store_write_protect( | |
185 | struct se_lun_acl *lacl, | |
186 | const char *page, | |
187 | size_t count) | |
188 | { | |
189 | struct se_node_acl *se_nacl = lacl->se_lun_nacl; | |
190 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
191 | unsigned long op; | |
192 | ||
193 | if (strict_strtoul(page, 0, &op)) | |
194 | return -EINVAL; | |
195 | ||
196 | if ((op != 1) && (op != 0)) | |
197 | return -EINVAL; | |
198 | ||
199 | core_update_device_list_access(lacl->mapped_lun, (op) ? | |
200 | TRANSPORT_LUNFLAGS_READ_ONLY : | |
201 | TRANSPORT_LUNFLAGS_READ_WRITE, | |
202 | lacl->se_lun_nacl); | |
203 | ||
6708bb27 | 204 | pr_debug("%s_ConfigFS: Changed Initiator ACL: %s" |
c66ac9db | 205 | " Mapped LUN: %u Write Protect bit to %s\n", |
e3d6f909 | 206 | se_tpg->se_tpg_tfo->get_fabric_name(), |
c66ac9db NB |
207 | lacl->initiatorname, lacl->mapped_lun, (op) ? "ON" : "OFF"); |
208 | ||
209 | return count; | |
210 | ||
211 | } | |
212 | ||
213 | TCM_MAPPEDLUN_ATTR(write_protect, S_IRUGO | S_IWUSR); | |
214 | ||
215 | CONFIGFS_EATTR_OPS(target_fabric_mappedlun, se_lun_acl, se_lun_group); | |
216 | ||
1f6fe7cb NB |
217 | static void target_fabric_mappedlun_release(struct config_item *item) |
218 | { | |
219 | struct se_lun_acl *lacl = container_of(to_config_group(item), | |
220 | struct se_lun_acl, se_lun_group); | |
221 | struct se_portal_group *se_tpg = lacl->se_lun_nacl->se_tpg; | |
222 | ||
223 | core_dev_free_initiator_node_lun_acl(se_tpg, lacl); | |
224 | } | |
225 | ||
c66ac9db NB |
226 | static struct configfs_attribute *target_fabric_mappedlun_attrs[] = { |
227 | &target_fabric_mappedlun_write_protect.attr, | |
228 | NULL, | |
229 | }; | |
230 | ||
231 | static struct configfs_item_operations target_fabric_mappedlun_item_ops = { | |
1f6fe7cb | 232 | .release = target_fabric_mappedlun_release, |
c66ac9db NB |
233 | .show_attribute = target_fabric_mappedlun_attr_show, |
234 | .store_attribute = target_fabric_mappedlun_attr_store, | |
235 | .allow_link = target_fabric_mappedlun_link, | |
236 | .drop_link = target_fabric_mappedlun_unlink, | |
237 | }; | |
238 | ||
239 | TF_CIT_SETUP(tpg_mappedlun, &target_fabric_mappedlun_item_ops, NULL, | |
240 | target_fabric_mappedlun_attrs); | |
241 | ||
242 | /* End of tfc_tpg_mappedlun_cit */ | |
243 | ||
12d23384 NB |
244 | /* Start of tfc_tpg_mappedlun_port_cit */ |
245 | ||
246 | static struct config_group *target_core_mappedlun_stat_mkdir( | |
247 | struct config_group *group, | |
248 | const char *name) | |
249 | { | |
250 | return ERR_PTR(-ENOSYS); | |
251 | } | |
252 | ||
253 | static void target_core_mappedlun_stat_rmdir( | |
254 | struct config_group *group, | |
255 | struct config_item *item) | |
256 | { | |
257 | return; | |
258 | } | |
259 | ||
260 | static struct configfs_group_operations target_fabric_mappedlun_stat_group_ops = { | |
261 | .make_group = target_core_mappedlun_stat_mkdir, | |
262 | .drop_item = target_core_mappedlun_stat_rmdir, | |
263 | }; | |
264 | ||
265 | TF_CIT_SETUP(tpg_mappedlun_stat, NULL, &target_fabric_mappedlun_stat_group_ops, | |
266 | NULL); | |
267 | ||
268 | /* End of tfc_tpg_mappedlun_port_cit */ | |
269 | ||
c66ac9db NB |
270 | /* Start of tfc_tpg_nacl_attrib_cit */ |
271 | ||
272 | CONFIGFS_EATTR_OPS(target_fabric_nacl_attrib, se_node_acl, acl_attrib_group); | |
273 | ||
274 | static struct configfs_item_operations target_fabric_nacl_attrib_item_ops = { | |
275 | .show_attribute = target_fabric_nacl_attrib_attr_show, | |
276 | .store_attribute = target_fabric_nacl_attrib_attr_store, | |
277 | }; | |
278 | ||
279 | TF_CIT_SETUP(tpg_nacl_attrib, &target_fabric_nacl_attrib_item_ops, NULL, NULL); | |
280 | ||
281 | /* End of tfc_tpg_nacl_attrib_cit */ | |
282 | ||
283 | /* Start of tfc_tpg_nacl_auth_cit */ | |
284 | ||
285 | CONFIGFS_EATTR_OPS(target_fabric_nacl_auth, se_node_acl, acl_auth_group); | |
286 | ||
287 | static struct configfs_item_operations target_fabric_nacl_auth_item_ops = { | |
288 | .show_attribute = target_fabric_nacl_auth_attr_show, | |
289 | .store_attribute = target_fabric_nacl_auth_attr_store, | |
290 | }; | |
291 | ||
292 | TF_CIT_SETUP(tpg_nacl_auth, &target_fabric_nacl_auth_item_ops, NULL, NULL); | |
293 | ||
294 | /* End of tfc_tpg_nacl_auth_cit */ | |
295 | ||
296 | /* Start of tfc_tpg_nacl_param_cit */ | |
297 | ||
298 | CONFIGFS_EATTR_OPS(target_fabric_nacl_param, se_node_acl, acl_param_group); | |
299 | ||
300 | static struct configfs_item_operations target_fabric_nacl_param_item_ops = { | |
301 | .show_attribute = target_fabric_nacl_param_attr_show, | |
302 | .store_attribute = target_fabric_nacl_param_attr_store, | |
303 | }; | |
304 | ||
305 | TF_CIT_SETUP(tpg_nacl_param, &target_fabric_nacl_param_item_ops, NULL, NULL); | |
306 | ||
307 | /* End of tfc_tpg_nacl_param_cit */ | |
308 | ||
309 | /* Start of tfc_tpg_nacl_base_cit */ | |
310 | ||
311 | CONFIGFS_EATTR_OPS(target_fabric_nacl_base, se_node_acl, acl_group); | |
312 | ||
313 | static struct config_group *target_fabric_make_mappedlun( | |
314 | struct config_group *group, | |
315 | const char *name) | |
316 | { | |
317 | struct se_node_acl *se_nacl = container_of(group, | |
318 | struct se_node_acl, acl_group); | |
319 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
320 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
321 | struct se_lun_acl *lacl; | |
322 | struct config_item *acl_ci; | |
12d23384 | 323 | struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; |
c66ac9db NB |
324 | char *buf; |
325 | unsigned long mapped_lun; | |
326 | int ret = 0; | |
327 | ||
328 | acl_ci = &group->cg_item; | |
6708bb27 AG |
329 | if (!acl_ci) { |
330 | pr_err("Unable to locatel acl_ci\n"); | |
c66ac9db NB |
331 | return NULL; |
332 | } | |
333 | ||
334 | buf = kzalloc(strlen(name) + 1, GFP_KERNEL); | |
6708bb27 AG |
335 | if (!buf) { |
336 | pr_err("Unable to allocate memory for name buf\n"); | |
c66ac9db NB |
337 | return ERR_PTR(-ENOMEM); |
338 | } | |
339 | snprintf(buf, strlen(name) + 1, "%s", name); | |
340 | /* | |
341 | * Make sure user is creating iscsi/$IQN/$TPGT/acls/$INITIATOR/lun_$ID. | |
342 | */ | |
343 | if (strstr(buf, "lun_") != buf) { | |
6708bb27 | 344 | pr_err("Unable to locate \"lun_\" from buf: %s" |
c66ac9db NB |
345 | " name: %s\n", buf, name); |
346 | ret = -EINVAL; | |
347 | goto out; | |
348 | } | |
349 | /* | |
350 | * Determine the Mapped LUN value. This is what the SCSI Initiator | |
351 | * Port will actually see. | |
352 | */ | |
353 | if (strict_strtoul(buf + 4, 0, &mapped_lun) || mapped_lun > UINT_MAX) { | |
354 | ret = -EINVAL; | |
355 | goto out; | |
356 | } | |
fbbf8555 NB |
357 | if (mapped_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) { |
358 | pr_err("Mapped LUN: %lu exceeds TRANSPORT_MAX_LUNS_PER_TPG" | |
359 | "-1: %u for Target Portal Group: %u\n", mapped_lun, | |
360 | TRANSPORT_MAX_LUNS_PER_TPG-1, | |
361 | se_tpg->se_tpg_tfo->tpg_get_tag(se_tpg)); | |
362 | ret = -EINVAL; | |
363 | goto out; | |
364 | } | |
c66ac9db | 365 | |
fcf29481 NB |
366 | lacl = core_dev_init_initiator_node_lun_acl(se_tpg, se_nacl, |
367 | mapped_lun, &ret); | |
6708bb27 | 368 | if (!lacl) { |
12d23384 | 369 | ret = -EINVAL; |
c66ac9db | 370 | goto out; |
12d23384 NB |
371 | } |
372 | ||
373 | lacl_cg = &lacl->se_lun_group; | |
13f6a914 | 374 | lacl_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, |
12d23384 NB |
375 | GFP_KERNEL); |
376 | if (!lacl_cg->default_groups) { | |
6708bb27 | 377 | pr_err("Unable to allocate lacl_cg->default_groups\n"); |
12d23384 NB |
378 | ret = -ENOMEM; |
379 | goto out; | |
380 | } | |
c66ac9db NB |
381 | |
382 | config_group_init_type_name(&lacl->se_lun_group, name, | |
383 | &TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_cit); | |
12d23384 NB |
384 | config_group_init_type_name(&lacl->ml_stat_grps.stat_group, |
385 | "statistics", &TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_stat_cit); | |
386 | lacl_cg->default_groups[0] = &lacl->ml_stat_grps.stat_group; | |
387 | lacl_cg->default_groups[1] = NULL; | |
388 | ||
e3d6f909 | 389 | ml_stat_grp = &lacl->ml_stat_grps.stat_group; |
13f6a914 | 390 | ml_stat_grp->default_groups = kmalloc(sizeof(struct config_group *) * 3, |
12d23384 NB |
391 | GFP_KERNEL); |
392 | if (!ml_stat_grp->default_groups) { | |
6708bb27 | 393 | pr_err("Unable to allocate ml_stat_grp->default_groups\n"); |
12d23384 NB |
394 | ret = -ENOMEM; |
395 | goto out; | |
396 | } | |
397 | target_stat_setup_mappedlun_default_groups(lacl); | |
c66ac9db NB |
398 | |
399 | kfree(buf); | |
400 | return &lacl->se_lun_group; | |
401 | out: | |
12d23384 NB |
402 | if (lacl_cg) |
403 | kfree(lacl_cg->default_groups); | |
c66ac9db NB |
404 | kfree(buf); |
405 | return ERR_PTR(ret); | |
406 | } | |
407 | ||
408 | static void target_fabric_drop_mappedlun( | |
409 | struct config_group *group, | |
410 | struct config_item *item) | |
411 | { | |
12d23384 NB |
412 | struct se_lun_acl *lacl = container_of(to_config_group(item), |
413 | struct se_lun_acl, se_lun_group); | |
414 | struct config_item *df_item; | |
415 | struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; | |
416 | int i; | |
417 | ||
e3d6f909 | 418 | ml_stat_grp = &lacl->ml_stat_grps.stat_group; |
12d23384 NB |
419 | for (i = 0; ml_stat_grp->default_groups[i]; i++) { |
420 | df_item = &ml_stat_grp->default_groups[i]->cg_item; | |
421 | ml_stat_grp->default_groups[i] = NULL; | |
422 | config_item_put(df_item); | |
423 | } | |
424 | kfree(ml_stat_grp->default_groups); | |
425 | ||
426 | lacl_cg = &lacl->se_lun_group; | |
427 | for (i = 0; lacl_cg->default_groups[i]; i++) { | |
428 | df_item = &lacl_cg->default_groups[i]->cg_item; | |
429 | lacl_cg->default_groups[i] = NULL; | |
430 | config_item_put(df_item); | |
431 | } | |
432 | kfree(lacl_cg->default_groups); | |
433 | ||
c66ac9db | 434 | config_item_put(item); |
1f6fe7cb NB |
435 | } |
436 | ||
437 | static void target_fabric_nacl_base_release(struct config_item *item) | |
438 | { | |
439 | struct se_node_acl *se_nacl = container_of(to_config_group(item), | |
440 | struct se_node_acl, acl_group); | |
441 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
442 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
443 | ||
444 | tf->tf_ops.fabric_drop_nodeacl(se_nacl); | |
c66ac9db NB |
445 | } |
446 | ||
447 | static struct configfs_item_operations target_fabric_nacl_base_item_ops = { | |
1f6fe7cb | 448 | .release = target_fabric_nacl_base_release, |
c66ac9db NB |
449 | .show_attribute = target_fabric_nacl_base_attr_show, |
450 | .store_attribute = target_fabric_nacl_base_attr_store, | |
451 | }; | |
452 | ||
453 | static struct configfs_group_operations target_fabric_nacl_base_group_ops = { | |
454 | .make_group = target_fabric_make_mappedlun, | |
455 | .drop_item = target_fabric_drop_mappedlun, | |
456 | }; | |
457 | ||
458 | TF_CIT_SETUP(tpg_nacl_base, &target_fabric_nacl_base_item_ops, | |
459 | &target_fabric_nacl_base_group_ops, NULL); | |
460 | ||
461 | /* End of tfc_tpg_nacl_base_cit */ | |
462 | ||
12d23384 NB |
463 | /* Start of tfc_node_fabric_stats_cit */ |
464 | /* | |
465 | * This is used as a placeholder for struct se_node_acl->acl_fabric_stat_group | |
466 | * to allow fabrics access to ->acl_fabric_stat_group->default_groups[] | |
467 | */ | |
468 | TF_CIT_SETUP(tpg_nacl_stat, NULL, NULL, NULL); | |
469 | ||
470 | /* End of tfc_wwn_fabric_stats_cit */ | |
471 | ||
c66ac9db NB |
472 | /* Start of tfc_tpg_nacl_cit */ |
473 | ||
474 | static struct config_group *target_fabric_make_nodeacl( | |
475 | struct config_group *group, | |
476 | const char *name) | |
477 | { | |
478 | struct se_portal_group *se_tpg = container_of(group, | |
479 | struct se_portal_group, tpg_acl_group); | |
480 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
481 | struct se_node_acl *se_nacl; | |
482 | struct config_group *nacl_cg; | |
483 | ||
6708bb27 AG |
484 | if (!tf->tf_ops.fabric_make_nodeacl) { |
485 | pr_err("tf->tf_ops.fabric_make_nodeacl is NULL\n"); | |
c66ac9db NB |
486 | return ERR_PTR(-ENOSYS); |
487 | } | |
488 | ||
489 | se_nacl = tf->tf_ops.fabric_make_nodeacl(se_tpg, group, name); | |
490 | if (IS_ERR(se_nacl)) | |
e1750ba2 | 491 | return ERR_CAST(se_nacl); |
c66ac9db NB |
492 | |
493 | nacl_cg = &se_nacl->acl_group; | |
494 | nacl_cg->default_groups = se_nacl->acl_default_groups; | |
495 | nacl_cg->default_groups[0] = &se_nacl->acl_attrib_group; | |
496 | nacl_cg->default_groups[1] = &se_nacl->acl_auth_group; | |
497 | nacl_cg->default_groups[2] = &se_nacl->acl_param_group; | |
12d23384 NB |
498 | nacl_cg->default_groups[3] = &se_nacl->acl_fabric_stat_group; |
499 | nacl_cg->default_groups[4] = NULL; | |
c66ac9db NB |
500 | |
501 | config_group_init_type_name(&se_nacl->acl_group, name, | |
502 | &TF_CIT_TMPL(tf)->tfc_tpg_nacl_base_cit); | |
503 | config_group_init_type_name(&se_nacl->acl_attrib_group, "attrib", | |
504 | &TF_CIT_TMPL(tf)->tfc_tpg_nacl_attrib_cit); | |
505 | config_group_init_type_name(&se_nacl->acl_auth_group, "auth", | |
506 | &TF_CIT_TMPL(tf)->tfc_tpg_nacl_auth_cit); | |
507 | config_group_init_type_name(&se_nacl->acl_param_group, "param", | |
508 | &TF_CIT_TMPL(tf)->tfc_tpg_nacl_param_cit); | |
12d23384 NB |
509 | config_group_init_type_name(&se_nacl->acl_fabric_stat_group, |
510 | "fabric_statistics", | |
511 | &TF_CIT_TMPL(tf)->tfc_tpg_nacl_stat_cit); | |
c66ac9db NB |
512 | |
513 | return &se_nacl->acl_group; | |
514 | } | |
515 | ||
516 | static void target_fabric_drop_nodeacl( | |
517 | struct config_group *group, | |
518 | struct config_item *item) | |
519 | { | |
c66ac9db NB |
520 | struct se_node_acl *se_nacl = container_of(to_config_group(item), |
521 | struct se_node_acl, acl_group); | |
522 | struct config_item *df_item; | |
523 | struct config_group *nacl_cg; | |
524 | int i; | |
525 | ||
526 | nacl_cg = &se_nacl->acl_group; | |
527 | for (i = 0; nacl_cg->default_groups[i]; i++) { | |
528 | df_item = &nacl_cg->default_groups[i]->cg_item; | |
529 | nacl_cg->default_groups[i] = NULL; | |
530 | config_item_put(df_item); | |
531 | } | |
1f6fe7cb NB |
532 | /* |
533 | * struct se_node_acl free is done in target_fabric_nacl_base_release() | |
534 | */ | |
c66ac9db | 535 | config_item_put(item); |
c66ac9db NB |
536 | } |
537 | ||
538 | static struct configfs_group_operations target_fabric_nacl_group_ops = { | |
539 | .make_group = target_fabric_make_nodeacl, | |
540 | .drop_item = target_fabric_drop_nodeacl, | |
541 | }; | |
542 | ||
543 | TF_CIT_SETUP(tpg_nacl, NULL, &target_fabric_nacl_group_ops, NULL); | |
544 | ||
545 | /* End of tfc_tpg_nacl_cit */ | |
546 | ||
547 | /* Start of tfc_tpg_np_base_cit */ | |
548 | ||
549 | CONFIGFS_EATTR_OPS(target_fabric_np_base, se_tpg_np, tpg_np_group); | |
550 | ||
1f6fe7cb NB |
551 | static void target_fabric_np_base_release(struct config_item *item) |
552 | { | |
553 | struct se_tpg_np *se_tpg_np = container_of(to_config_group(item), | |
554 | struct se_tpg_np, tpg_np_group); | |
555 | struct se_portal_group *se_tpg = se_tpg_np->tpg_np_parent; | |
556 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
557 | ||
558 | tf->tf_ops.fabric_drop_np(se_tpg_np); | |
559 | } | |
560 | ||
c66ac9db | 561 | static struct configfs_item_operations target_fabric_np_base_item_ops = { |
1f6fe7cb | 562 | .release = target_fabric_np_base_release, |
c66ac9db NB |
563 | .show_attribute = target_fabric_np_base_attr_show, |
564 | .store_attribute = target_fabric_np_base_attr_store, | |
565 | }; | |
566 | ||
567 | TF_CIT_SETUP(tpg_np_base, &target_fabric_np_base_item_ops, NULL, NULL); | |
568 | ||
569 | /* End of tfc_tpg_np_base_cit */ | |
570 | ||
571 | /* Start of tfc_tpg_np_cit */ | |
572 | ||
573 | static struct config_group *target_fabric_make_np( | |
574 | struct config_group *group, | |
575 | const char *name) | |
576 | { | |
577 | struct se_portal_group *se_tpg = container_of(group, | |
578 | struct se_portal_group, tpg_np_group); | |
579 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
580 | struct se_tpg_np *se_tpg_np; | |
581 | ||
6708bb27 AG |
582 | if (!tf->tf_ops.fabric_make_np) { |
583 | pr_err("tf->tf_ops.fabric_make_np is NULL\n"); | |
c66ac9db NB |
584 | return ERR_PTR(-ENOSYS); |
585 | } | |
586 | ||
587 | se_tpg_np = tf->tf_ops.fabric_make_np(se_tpg, group, name); | |
6708bb27 | 588 | if (!se_tpg_np || IS_ERR(se_tpg_np)) |
c66ac9db NB |
589 | return ERR_PTR(-EINVAL); |
590 | ||
1f6fe7cb | 591 | se_tpg_np->tpg_np_parent = se_tpg; |
c66ac9db NB |
592 | config_group_init_type_name(&se_tpg_np->tpg_np_group, name, |
593 | &TF_CIT_TMPL(tf)->tfc_tpg_np_base_cit); | |
594 | ||
595 | return &se_tpg_np->tpg_np_group; | |
596 | } | |
597 | ||
598 | static void target_fabric_drop_np( | |
599 | struct config_group *group, | |
600 | struct config_item *item) | |
601 | { | |
1f6fe7cb NB |
602 | /* |
603 | * struct se_tpg_np is released via target_fabric_np_base_release() | |
604 | */ | |
c66ac9db | 605 | config_item_put(item); |
c66ac9db NB |
606 | } |
607 | ||
608 | static struct configfs_group_operations target_fabric_np_group_ops = { | |
609 | .make_group = &target_fabric_make_np, | |
610 | .drop_item = &target_fabric_drop_np, | |
611 | }; | |
612 | ||
613 | TF_CIT_SETUP(tpg_np, NULL, &target_fabric_np_group_ops, NULL); | |
614 | ||
615 | /* End of tfc_tpg_np_cit */ | |
616 | ||
617 | /* Start of tfc_tpg_port_cit */ | |
618 | ||
619 | CONFIGFS_EATTR_STRUCT(target_fabric_port, se_lun); | |
620 | #define TCM_PORT_ATTR(_name, _mode) \ | |
621 | static struct target_fabric_port_attribute target_fabric_port_##_name = \ | |
622 | __CONFIGFS_EATTR(_name, _mode, \ | |
623 | target_fabric_port_show_attr_##_name, \ | |
624 | target_fabric_port_store_attr_##_name); | |
625 | ||
626 | #define TCM_PORT_ATTOR_RO(_name) \ | |
627 | __CONFIGFS_EATTR_RO(_name, \ | |
628 | target_fabric_port_show_attr_##_name); | |
629 | ||
630 | /* | |
631 | * alua_tg_pt_gp | |
632 | */ | |
633 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_gp( | |
634 | struct se_lun *lun, | |
635 | char *page) | |
636 | { | |
6708bb27 | 637 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
638 | return -ENODEV; |
639 | ||
640 | return core_alua_show_tg_pt_gp_info(lun->lun_sep, page); | |
641 | } | |
642 | ||
643 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_gp( | |
644 | struct se_lun *lun, | |
645 | const char *page, | |
646 | size_t count) | |
647 | { | |
6708bb27 | 648 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
649 | return -ENODEV; |
650 | ||
651 | return core_alua_store_tg_pt_gp_info(lun->lun_sep, page, count); | |
652 | } | |
653 | ||
654 | TCM_PORT_ATTR(alua_tg_pt_gp, S_IRUGO | S_IWUSR); | |
655 | ||
656 | /* | |
657 | * alua_tg_pt_offline | |
658 | */ | |
659 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_offline( | |
660 | struct se_lun *lun, | |
661 | char *page) | |
662 | { | |
6708bb27 | 663 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
664 | return -ENODEV; |
665 | ||
666 | return core_alua_show_offline_bit(lun, page); | |
667 | } | |
668 | ||
669 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_offline( | |
670 | struct se_lun *lun, | |
671 | const char *page, | |
672 | size_t count) | |
673 | { | |
6708bb27 | 674 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
675 | return -ENODEV; |
676 | ||
677 | return core_alua_store_offline_bit(lun, page, count); | |
678 | } | |
679 | ||
680 | TCM_PORT_ATTR(alua_tg_pt_offline, S_IRUGO | S_IWUSR); | |
681 | ||
682 | /* | |
683 | * alua_tg_pt_status | |
684 | */ | |
685 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_status( | |
686 | struct se_lun *lun, | |
687 | char *page) | |
688 | { | |
6708bb27 | 689 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
690 | return -ENODEV; |
691 | ||
692 | return core_alua_show_secondary_status(lun, page); | |
693 | } | |
694 | ||
695 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_status( | |
696 | struct se_lun *lun, | |
697 | const char *page, | |
698 | size_t count) | |
699 | { | |
6708bb27 | 700 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
701 | return -ENODEV; |
702 | ||
703 | return core_alua_store_secondary_status(lun, page, count); | |
704 | } | |
705 | ||
706 | TCM_PORT_ATTR(alua_tg_pt_status, S_IRUGO | S_IWUSR); | |
707 | ||
708 | /* | |
709 | * alua_tg_pt_write_md | |
710 | */ | |
711 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_write_md( | |
712 | struct se_lun *lun, | |
713 | char *page) | |
714 | { | |
6708bb27 | 715 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
716 | return -ENODEV; |
717 | ||
718 | return core_alua_show_secondary_write_metadata(lun, page); | |
719 | } | |
720 | ||
721 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_write_md( | |
722 | struct se_lun *lun, | |
723 | const char *page, | |
724 | size_t count) | |
725 | { | |
6708bb27 | 726 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
727 | return -ENODEV; |
728 | ||
729 | return core_alua_store_secondary_write_metadata(lun, page, count); | |
730 | } | |
731 | ||
732 | TCM_PORT_ATTR(alua_tg_pt_write_md, S_IRUGO | S_IWUSR); | |
733 | ||
734 | ||
735 | static struct configfs_attribute *target_fabric_port_attrs[] = { | |
736 | &target_fabric_port_alua_tg_pt_gp.attr, | |
737 | &target_fabric_port_alua_tg_pt_offline.attr, | |
738 | &target_fabric_port_alua_tg_pt_status.attr, | |
739 | &target_fabric_port_alua_tg_pt_write_md.attr, | |
740 | NULL, | |
741 | }; | |
742 | ||
743 | CONFIGFS_EATTR_OPS(target_fabric_port, se_lun, lun_group); | |
744 | ||
745 | static int target_fabric_port_link( | |
746 | struct config_item *lun_ci, | |
747 | struct config_item *se_dev_ci) | |
748 | { | |
749 | struct config_item *tpg_ci; | |
c66ac9db NB |
750 | struct se_lun *lun = container_of(to_config_group(lun_ci), |
751 | struct se_lun, lun_group); | |
752 | struct se_lun *lun_p; | |
753 | struct se_portal_group *se_tpg; | |
0fd97ccf CH |
754 | struct se_device *dev = |
755 | container_of(to_config_group(se_dev_ci), struct se_device, dev_group); | |
c66ac9db NB |
756 | struct target_fabric_configfs *tf; |
757 | int ret; | |
758 | ||
0ff87549 NB |
759 | if (dev->dev_link_magic != SE_DEV_LINK_MAGIC) { |
760 | pr_err("Bad dev->dev_link_magic, not a valid se_dev_ci pointer:" | |
761 | " %p to struct se_device: %p\n", se_dev_ci, dev); | |
762 | return -EFAULT; | |
763 | } | |
764 | ||
faa06ab9 NB |
765 | if (!(dev->dev_flags & DF_CONFIGURED)) { |
766 | pr_err("se_device not configured yet, cannot port link\n"); | |
767 | return -ENODEV; | |
768 | } | |
769 | ||
c66ac9db NB |
770 | tpg_ci = &lun_ci->ci_parent->ci_group->cg_item; |
771 | se_tpg = container_of(to_config_group(tpg_ci), | |
772 | struct se_portal_group, tpg_group); | |
773 | tf = se_tpg->se_tpg_wwn->wwn_tf; | |
774 | ||
775 | if (lun->lun_se_dev != NULL) { | |
6708bb27 | 776 | pr_err("Port Symlink already exists\n"); |
c66ac9db NB |
777 | return -EEXIST; |
778 | } | |
779 | ||
2dca673b | 780 | lun_p = core_dev_add_lun(se_tpg, dev, lun->unpacked_lun); |
8d9efe53 | 781 | if (IS_ERR(lun_p)) { |
6708bb27 | 782 | pr_err("core_dev_add_lun() failed\n"); |
8d9efe53 | 783 | ret = PTR_ERR(lun_p); |
c66ac9db NB |
784 | goto out; |
785 | } | |
786 | ||
787 | if (tf->tf_ops.fabric_post_link) { | |
788 | /* | |
789 | * Call the optional fabric_post_link() to allow a | |
790 | * fabric module to setup any additional state once | |
791 | * core_dev_add_lun() has been called.. | |
792 | */ | |
793 | tf->tf_ops.fabric_post_link(se_tpg, lun); | |
794 | } | |
795 | ||
796 | return 0; | |
797 | out: | |
798 | return ret; | |
799 | } | |
800 | ||
801 | static int target_fabric_port_unlink( | |
802 | struct config_item *lun_ci, | |
803 | struct config_item *se_dev_ci) | |
804 | { | |
805 | struct se_lun *lun = container_of(to_config_group(lun_ci), | |
806 | struct se_lun, lun_group); | |
807 | struct se_portal_group *se_tpg = lun->lun_sep->sep_tpg; | |
808 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
809 | ||
810 | if (tf->tf_ops.fabric_pre_unlink) { | |
811 | /* | |
812 | * Call the optional fabric_pre_unlink() to allow a | |
813 | * fabric module to release any additional stat before | |
814 | * core_dev_del_lun() is called. | |
815 | */ | |
816 | tf->tf_ops.fabric_pre_unlink(se_tpg, lun); | |
817 | } | |
818 | ||
819 | core_dev_del_lun(se_tpg, lun->unpacked_lun); | |
820 | return 0; | |
821 | } | |
822 | ||
823 | static struct configfs_item_operations target_fabric_port_item_ops = { | |
824 | .show_attribute = target_fabric_port_attr_show, | |
825 | .store_attribute = target_fabric_port_attr_store, | |
826 | .allow_link = target_fabric_port_link, | |
827 | .drop_link = target_fabric_port_unlink, | |
828 | }; | |
829 | ||
830 | TF_CIT_SETUP(tpg_port, &target_fabric_port_item_ops, NULL, target_fabric_port_attrs); | |
831 | ||
832 | /* End of tfc_tpg_port_cit */ | |
833 | ||
12d23384 NB |
834 | /* Start of tfc_tpg_port_stat_cit */ |
835 | ||
836 | static struct config_group *target_core_port_stat_mkdir( | |
837 | struct config_group *group, | |
838 | const char *name) | |
839 | { | |
840 | return ERR_PTR(-ENOSYS); | |
841 | } | |
842 | ||
843 | static void target_core_port_stat_rmdir( | |
844 | struct config_group *group, | |
845 | struct config_item *item) | |
846 | { | |
847 | return; | |
848 | } | |
849 | ||
850 | static struct configfs_group_operations target_fabric_port_stat_group_ops = { | |
851 | .make_group = target_core_port_stat_mkdir, | |
852 | .drop_item = target_core_port_stat_rmdir, | |
853 | }; | |
854 | ||
855 | TF_CIT_SETUP(tpg_port_stat, NULL, &target_fabric_port_stat_group_ops, NULL); | |
856 | ||
857 | /* End of tfc_tpg_port_stat_cit */ | |
858 | ||
c66ac9db NB |
859 | /* Start of tfc_tpg_lun_cit */ |
860 | ||
861 | static struct config_group *target_fabric_make_lun( | |
862 | struct config_group *group, | |
863 | const char *name) | |
864 | { | |
865 | struct se_lun *lun; | |
866 | struct se_portal_group *se_tpg = container_of(group, | |
867 | struct se_portal_group, tpg_lun_group); | |
868 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
12d23384 | 869 | struct config_group *lun_cg = NULL, *port_stat_grp = NULL; |
c66ac9db | 870 | unsigned long unpacked_lun; |
12d23384 | 871 | int errno; |
c66ac9db NB |
872 | |
873 | if (strstr(name, "lun_") != name) { | |
6708bb27 | 874 | pr_err("Unable to locate \'_\" in" |
c66ac9db NB |
875 | " \"lun_$LUN_NUMBER\"\n"); |
876 | return ERR_PTR(-EINVAL); | |
877 | } | |
878 | if (strict_strtoul(name + 4, 0, &unpacked_lun) || unpacked_lun > UINT_MAX) | |
879 | return ERR_PTR(-EINVAL); | |
880 | ||
881 | lun = core_get_lun_from_tpg(se_tpg, unpacked_lun); | |
6708bb27 | 882 | if (!lun) |
c66ac9db NB |
883 | return ERR_PTR(-EINVAL); |
884 | ||
12d23384 | 885 | lun_cg = &lun->lun_group; |
13f6a914 | 886 | lun_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, |
12d23384 NB |
887 | GFP_KERNEL); |
888 | if (!lun_cg->default_groups) { | |
6708bb27 | 889 | pr_err("Unable to allocate lun_cg->default_groups\n"); |
12d23384 NB |
890 | return ERR_PTR(-ENOMEM); |
891 | } | |
892 | ||
c66ac9db NB |
893 | config_group_init_type_name(&lun->lun_group, name, |
894 | &TF_CIT_TMPL(tf)->tfc_tpg_port_cit); | |
12d23384 NB |
895 | config_group_init_type_name(&lun->port_stat_grps.stat_group, |
896 | "statistics", &TF_CIT_TMPL(tf)->tfc_tpg_port_stat_cit); | |
897 | lun_cg->default_groups[0] = &lun->port_stat_grps.stat_group; | |
898 | lun_cg->default_groups[1] = NULL; | |
899 | ||
e3d6f909 | 900 | port_stat_grp = &lun->port_stat_grps.stat_group; |
12d23384 NB |
901 | port_stat_grp->default_groups = kzalloc(sizeof(struct config_group) * 3, |
902 | GFP_KERNEL); | |
903 | if (!port_stat_grp->default_groups) { | |
6708bb27 | 904 | pr_err("Unable to allocate port_stat_grp->default_groups\n"); |
12d23384 NB |
905 | errno = -ENOMEM; |
906 | goto out; | |
907 | } | |
908 | target_stat_setup_port_default_groups(lun); | |
c66ac9db NB |
909 | |
910 | return &lun->lun_group; | |
12d23384 NB |
911 | out: |
912 | if (lun_cg) | |
913 | kfree(lun_cg->default_groups); | |
914 | return ERR_PTR(errno); | |
c66ac9db NB |
915 | } |
916 | ||
917 | static void target_fabric_drop_lun( | |
918 | struct config_group *group, | |
919 | struct config_item *item) | |
920 | { | |
12d23384 NB |
921 | struct se_lun *lun = container_of(to_config_group(item), |
922 | struct se_lun, lun_group); | |
923 | struct config_item *df_item; | |
924 | struct config_group *lun_cg, *port_stat_grp; | |
925 | int i; | |
926 | ||
e3d6f909 | 927 | port_stat_grp = &lun->port_stat_grps.stat_group; |
12d23384 NB |
928 | for (i = 0; port_stat_grp->default_groups[i]; i++) { |
929 | df_item = &port_stat_grp->default_groups[i]->cg_item; | |
930 | port_stat_grp->default_groups[i] = NULL; | |
931 | config_item_put(df_item); | |
932 | } | |
933 | kfree(port_stat_grp->default_groups); | |
934 | ||
935 | lun_cg = &lun->lun_group; | |
936 | for (i = 0; lun_cg->default_groups[i]; i++) { | |
937 | df_item = &lun_cg->default_groups[i]->cg_item; | |
938 | lun_cg->default_groups[i] = NULL; | |
939 | config_item_put(df_item); | |
940 | } | |
941 | kfree(lun_cg->default_groups); | |
942 | ||
c66ac9db NB |
943 | config_item_put(item); |
944 | } | |
945 | ||
946 | static struct configfs_group_operations target_fabric_lun_group_ops = { | |
947 | .make_group = &target_fabric_make_lun, | |
948 | .drop_item = &target_fabric_drop_lun, | |
949 | }; | |
950 | ||
951 | TF_CIT_SETUP(tpg_lun, NULL, &target_fabric_lun_group_ops, NULL); | |
952 | ||
953 | /* End of tfc_tpg_lun_cit */ | |
954 | ||
955 | /* Start of tfc_tpg_attrib_cit */ | |
956 | ||
957 | CONFIGFS_EATTR_OPS(target_fabric_tpg_attrib, se_portal_group, tpg_attrib_group); | |
958 | ||
959 | static struct configfs_item_operations target_fabric_tpg_attrib_item_ops = { | |
960 | .show_attribute = target_fabric_tpg_attrib_attr_show, | |
961 | .store_attribute = target_fabric_tpg_attrib_attr_store, | |
962 | }; | |
963 | ||
964 | TF_CIT_SETUP(tpg_attrib, &target_fabric_tpg_attrib_item_ops, NULL, NULL); | |
965 | ||
966 | /* End of tfc_tpg_attrib_cit */ | |
967 | ||
968 | /* Start of tfc_tpg_param_cit */ | |
969 | ||
970 | CONFIGFS_EATTR_OPS(target_fabric_tpg_param, se_portal_group, tpg_param_group); | |
971 | ||
972 | static struct configfs_item_operations target_fabric_tpg_param_item_ops = { | |
973 | .show_attribute = target_fabric_tpg_param_attr_show, | |
974 | .store_attribute = target_fabric_tpg_param_attr_store, | |
975 | }; | |
976 | ||
977 | TF_CIT_SETUP(tpg_param, &target_fabric_tpg_param_item_ops, NULL, NULL); | |
978 | ||
979 | /* End of tfc_tpg_param_cit */ | |
980 | ||
981 | /* Start of tfc_tpg_base_cit */ | |
982 | /* | |
983 | * For use with TF_TPG_ATTR() and TF_TPG_ATTR_RO() | |
984 | */ | |
985 | CONFIGFS_EATTR_OPS(target_fabric_tpg, se_portal_group, tpg_group); | |
986 | ||
1f6fe7cb NB |
987 | static void target_fabric_tpg_release(struct config_item *item) |
988 | { | |
989 | struct se_portal_group *se_tpg = container_of(to_config_group(item), | |
990 | struct se_portal_group, tpg_group); | |
991 | struct se_wwn *wwn = se_tpg->se_tpg_wwn; | |
992 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
993 | ||
994 | tf->tf_ops.fabric_drop_tpg(se_tpg); | |
995 | } | |
996 | ||
c66ac9db | 997 | static struct configfs_item_operations target_fabric_tpg_base_item_ops = { |
1f6fe7cb | 998 | .release = target_fabric_tpg_release, |
c66ac9db NB |
999 | .show_attribute = target_fabric_tpg_attr_show, |
1000 | .store_attribute = target_fabric_tpg_attr_store, | |
1001 | }; | |
1002 | ||
1003 | TF_CIT_SETUP(tpg_base, &target_fabric_tpg_base_item_ops, NULL, NULL); | |
1004 | ||
1005 | /* End of tfc_tpg_base_cit */ | |
1006 | ||
1007 | /* Start of tfc_tpg_cit */ | |
1008 | ||
1009 | static struct config_group *target_fabric_make_tpg( | |
1010 | struct config_group *group, | |
1011 | const char *name) | |
1012 | { | |
1013 | struct se_wwn *wwn = container_of(group, struct se_wwn, wwn_group); | |
1014 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
1015 | struct se_portal_group *se_tpg; | |
1016 | ||
6708bb27 AG |
1017 | if (!tf->tf_ops.fabric_make_tpg) { |
1018 | pr_err("tf->tf_ops.fabric_make_tpg is NULL\n"); | |
c66ac9db NB |
1019 | return ERR_PTR(-ENOSYS); |
1020 | } | |
1021 | ||
1022 | se_tpg = tf->tf_ops.fabric_make_tpg(wwn, group, name); | |
6708bb27 | 1023 | if (!se_tpg || IS_ERR(se_tpg)) |
c66ac9db NB |
1024 | return ERR_PTR(-EINVAL); |
1025 | /* | |
1026 | * Setup default groups from pre-allocated se_tpg->tpg_default_groups | |
1027 | */ | |
1028 | se_tpg->tpg_group.default_groups = se_tpg->tpg_default_groups; | |
1029 | se_tpg->tpg_group.default_groups[0] = &se_tpg->tpg_lun_group; | |
1030 | se_tpg->tpg_group.default_groups[1] = &se_tpg->tpg_np_group; | |
1031 | se_tpg->tpg_group.default_groups[2] = &se_tpg->tpg_acl_group; | |
1032 | se_tpg->tpg_group.default_groups[3] = &se_tpg->tpg_attrib_group; | |
1033 | se_tpg->tpg_group.default_groups[4] = &se_tpg->tpg_param_group; | |
1034 | se_tpg->tpg_group.default_groups[5] = NULL; | |
1035 | ||
1036 | config_group_init_type_name(&se_tpg->tpg_group, name, | |
1037 | &TF_CIT_TMPL(tf)->tfc_tpg_base_cit); | |
1038 | config_group_init_type_name(&se_tpg->tpg_lun_group, "lun", | |
1039 | &TF_CIT_TMPL(tf)->tfc_tpg_lun_cit); | |
1040 | config_group_init_type_name(&se_tpg->tpg_np_group, "np", | |
1041 | &TF_CIT_TMPL(tf)->tfc_tpg_np_cit); | |
1042 | config_group_init_type_name(&se_tpg->tpg_acl_group, "acls", | |
1043 | &TF_CIT_TMPL(tf)->tfc_tpg_nacl_cit); | |
1044 | config_group_init_type_name(&se_tpg->tpg_attrib_group, "attrib", | |
1045 | &TF_CIT_TMPL(tf)->tfc_tpg_attrib_cit); | |
1046 | config_group_init_type_name(&se_tpg->tpg_param_group, "param", | |
1047 | &TF_CIT_TMPL(tf)->tfc_tpg_param_cit); | |
1048 | ||
1049 | return &se_tpg->tpg_group; | |
1050 | } | |
1051 | ||
1052 | static void target_fabric_drop_tpg( | |
1053 | struct config_group *group, | |
1054 | struct config_item *item) | |
1055 | { | |
c66ac9db NB |
1056 | struct se_portal_group *se_tpg = container_of(to_config_group(item), |
1057 | struct se_portal_group, tpg_group); | |
1058 | struct config_group *tpg_cg = &se_tpg->tpg_group; | |
1059 | struct config_item *df_item; | |
1060 | int i; | |
1061 | /* | |
1062 | * Release default groups, but do not release tpg_cg->default_groups | |
1063 | * memory as it is statically allocated at se_tpg->tpg_default_groups. | |
1064 | */ | |
1065 | for (i = 0; tpg_cg->default_groups[i]; i++) { | |
1066 | df_item = &tpg_cg->default_groups[i]->cg_item; | |
1067 | tpg_cg->default_groups[i] = NULL; | |
1068 | config_item_put(df_item); | |
1069 | } | |
1070 | ||
1071 | config_item_put(item); | |
c66ac9db NB |
1072 | } |
1073 | ||
1f6fe7cb NB |
1074 | static void target_fabric_release_wwn(struct config_item *item) |
1075 | { | |
1076 | struct se_wwn *wwn = container_of(to_config_group(item), | |
1077 | struct se_wwn, wwn_group); | |
1078 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
1079 | ||
1080 | tf->tf_ops.fabric_drop_wwn(wwn); | |
1081 | } | |
1082 | ||
1083 | static struct configfs_item_operations target_fabric_tpg_item_ops = { | |
1084 | .release = target_fabric_release_wwn, | |
1085 | }; | |
1086 | ||
c66ac9db NB |
1087 | static struct configfs_group_operations target_fabric_tpg_group_ops = { |
1088 | .make_group = target_fabric_make_tpg, | |
1089 | .drop_item = target_fabric_drop_tpg, | |
1090 | }; | |
1091 | ||
1f6fe7cb NB |
1092 | TF_CIT_SETUP(tpg, &target_fabric_tpg_item_ops, &target_fabric_tpg_group_ops, |
1093 | NULL); | |
c66ac9db NB |
1094 | |
1095 | /* End of tfc_tpg_cit */ | |
1096 | ||
12d23384 NB |
1097 | /* Start of tfc_wwn_fabric_stats_cit */ |
1098 | /* | |
1099 | * This is used as a placeholder for struct se_wwn->fabric_stat_group | |
1100 | * to allow fabrics access to ->fabric_stat_group->default_groups[] | |
1101 | */ | |
1102 | TF_CIT_SETUP(wwn_fabric_stats, NULL, NULL, NULL); | |
1103 | ||
1104 | /* End of tfc_wwn_fabric_stats_cit */ | |
1105 | ||
c66ac9db NB |
1106 | /* Start of tfc_wwn_cit */ |
1107 | ||
1108 | static struct config_group *target_fabric_make_wwn( | |
1109 | struct config_group *group, | |
1110 | const char *name) | |
1111 | { | |
1112 | struct target_fabric_configfs *tf = container_of(group, | |
1113 | struct target_fabric_configfs, tf_group); | |
1114 | struct se_wwn *wwn; | |
1115 | ||
6708bb27 AG |
1116 | if (!tf->tf_ops.fabric_make_wwn) { |
1117 | pr_err("tf->tf_ops.fabric_make_wwn is NULL\n"); | |
c66ac9db NB |
1118 | return ERR_PTR(-ENOSYS); |
1119 | } | |
1120 | ||
1121 | wwn = tf->tf_ops.fabric_make_wwn(tf, group, name); | |
6708bb27 | 1122 | if (!wwn || IS_ERR(wwn)) |
c66ac9db NB |
1123 | return ERR_PTR(-EINVAL); |
1124 | ||
1125 | wwn->wwn_tf = tf; | |
12d23384 NB |
1126 | /* |
1127 | * Setup default groups from pre-allocated wwn->wwn_default_groups | |
1128 | */ | |
1129 | wwn->wwn_group.default_groups = wwn->wwn_default_groups; | |
1130 | wwn->wwn_group.default_groups[0] = &wwn->fabric_stat_group; | |
1131 | wwn->wwn_group.default_groups[1] = NULL; | |
1132 | ||
c66ac9db NB |
1133 | config_group_init_type_name(&wwn->wwn_group, name, |
1134 | &TF_CIT_TMPL(tf)->tfc_tpg_cit); | |
12d23384 NB |
1135 | config_group_init_type_name(&wwn->fabric_stat_group, "fabric_statistics", |
1136 | &TF_CIT_TMPL(tf)->tfc_wwn_fabric_stats_cit); | |
c66ac9db NB |
1137 | |
1138 | return &wwn->wwn_group; | |
1139 | } | |
1140 | ||
1141 | static void target_fabric_drop_wwn( | |
1142 | struct config_group *group, | |
1143 | struct config_item *item) | |
1144 | { | |
12d23384 NB |
1145 | struct se_wwn *wwn = container_of(to_config_group(item), |
1146 | struct se_wwn, wwn_group); | |
1147 | struct config_item *df_item; | |
1148 | struct config_group *cg = &wwn->wwn_group; | |
1149 | int i; | |
1150 | ||
1151 | for (i = 0; cg->default_groups[i]; i++) { | |
1152 | df_item = &cg->default_groups[i]->cg_item; | |
1153 | cg->default_groups[i] = NULL; | |
1154 | config_item_put(df_item); | |
1155 | } | |
1156 | ||
c66ac9db | 1157 | config_item_put(item); |
c66ac9db NB |
1158 | } |
1159 | ||
1160 | static struct configfs_group_operations target_fabric_wwn_group_ops = { | |
1161 | .make_group = target_fabric_make_wwn, | |
1162 | .drop_item = target_fabric_drop_wwn, | |
1163 | }; | |
1164 | /* | |
1165 | * For use with TF_WWN_ATTR() and TF_WWN_ATTR_RO() | |
1166 | */ | |
1167 | CONFIGFS_EATTR_OPS(target_fabric_wwn, target_fabric_configfs, tf_group); | |
1168 | ||
1169 | static struct configfs_item_operations target_fabric_wwn_item_ops = { | |
1170 | .show_attribute = target_fabric_wwn_attr_show, | |
1171 | .store_attribute = target_fabric_wwn_attr_store, | |
1172 | }; | |
1173 | ||
1174 | TF_CIT_SETUP(wwn, &target_fabric_wwn_item_ops, &target_fabric_wwn_group_ops, NULL); | |
1175 | ||
1176 | /* End of tfc_wwn_cit */ | |
1177 | ||
1178 | /* Start of tfc_discovery_cit */ | |
1179 | ||
1180 | CONFIGFS_EATTR_OPS(target_fabric_discovery, target_fabric_configfs, | |
1181 | tf_disc_group); | |
1182 | ||
1183 | static struct configfs_item_operations target_fabric_discovery_item_ops = { | |
1184 | .show_attribute = target_fabric_discovery_attr_show, | |
1185 | .store_attribute = target_fabric_discovery_attr_store, | |
1186 | }; | |
1187 | ||
1188 | TF_CIT_SETUP(discovery, &target_fabric_discovery_item_ops, NULL, NULL); | |
1189 | ||
1190 | /* End of tfc_discovery_cit */ | |
1191 | ||
1192 | int target_fabric_setup_cits(struct target_fabric_configfs *tf) | |
1193 | { | |
1194 | target_fabric_setup_discovery_cit(tf); | |
1195 | target_fabric_setup_wwn_cit(tf); | |
12d23384 | 1196 | target_fabric_setup_wwn_fabric_stats_cit(tf); |
c66ac9db NB |
1197 | target_fabric_setup_tpg_cit(tf); |
1198 | target_fabric_setup_tpg_base_cit(tf); | |
1199 | target_fabric_setup_tpg_port_cit(tf); | |
12d23384 | 1200 | target_fabric_setup_tpg_port_stat_cit(tf); |
c66ac9db NB |
1201 | target_fabric_setup_tpg_lun_cit(tf); |
1202 | target_fabric_setup_tpg_np_cit(tf); | |
1203 | target_fabric_setup_tpg_np_base_cit(tf); | |
1204 | target_fabric_setup_tpg_attrib_cit(tf); | |
1205 | target_fabric_setup_tpg_param_cit(tf); | |
1206 | target_fabric_setup_tpg_nacl_cit(tf); | |
1207 | target_fabric_setup_tpg_nacl_base_cit(tf); | |
1208 | target_fabric_setup_tpg_nacl_attrib_cit(tf); | |
1209 | target_fabric_setup_tpg_nacl_auth_cit(tf); | |
1210 | target_fabric_setup_tpg_nacl_param_cit(tf); | |
12d23384 | 1211 | target_fabric_setup_tpg_nacl_stat_cit(tf); |
c66ac9db | 1212 | target_fabric_setup_tpg_mappedlun_cit(tf); |
12d23384 | 1213 | target_fabric_setup_tpg_mappedlun_stat_cit(tf); |
c66ac9db NB |
1214 | |
1215 | return 0; | |
1216 | } |