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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 | } | |
fa4cd092 NB |
87 | if (lun->lun_shutdown) { |
88 | pr_err("Unable to create mappedlun symlink because" | |
89 | " lun->lun_shutdown=true\n"); | |
90 | return -EINVAL; | |
91 | } | |
c66ac9db NB |
92 | se_tpg = lun->lun_sep->sep_tpg; |
93 | ||
94 | nacl_ci = &lun_acl_ci->ci_parent->ci_group->cg_item; | |
95 | tpg_ci = &nacl_ci->ci_group->cg_item; | |
96 | wwn_ci = &tpg_ci->ci_group->cg_item; | |
97 | tpg_ci_s = &lun_ci->ci_parent->ci_group->cg_item; | |
98 | wwn_ci_s = &tpg_ci_s->ci_group->cg_item; | |
99 | /* | |
100 | * Make sure the SymLink is going to the same $FABRIC/$WWN/tpgt_$TPGT | |
101 | */ | |
102 | if (strcmp(config_item_name(wwn_ci), config_item_name(wwn_ci_s))) { | |
6708bb27 | 103 | pr_err("Illegal Initiator ACL SymLink outside of %s\n", |
c66ac9db NB |
104 | config_item_name(wwn_ci)); |
105 | return -EINVAL; | |
106 | } | |
107 | if (strcmp(config_item_name(tpg_ci), config_item_name(tpg_ci_s))) { | |
6708bb27 | 108 | pr_err("Illegal Initiator ACL Symlink outside of %s" |
c66ac9db NB |
109 | " TPGT: %s\n", config_item_name(wwn_ci), |
110 | config_item_name(tpg_ci)); | |
111 | return -EINVAL; | |
112 | } | |
113 | /* | |
114 | * If this struct se_node_acl was dynamically generated with | |
115 | * tpg_1/attrib/generate_node_acls=1, use the existing deve->lun_flags, | |
116 | * which be will write protected (READ-ONLY) when | |
117 | * tpg_1/attrib/demo_mode_write_protect=1 | |
118 | */ | |
119 | spin_lock_irq(&lacl->se_lun_nacl->device_list_lock); | |
f2083241 | 120 | deve = lacl->se_lun_nacl->device_list[lacl->mapped_lun]; |
c66ac9db NB |
121 | if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) |
122 | lun_access = deve->lun_flags; | |
123 | else | |
124 | lun_access = | |
e3d6f909 | 125 | (se_tpg->se_tpg_tfo->tpg_check_prod_mode_write_protect( |
c66ac9db NB |
126 | se_tpg)) ? TRANSPORT_LUNFLAGS_READ_ONLY : |
127 | TRANSPORT_LUNFLAGS_READ_WRITE; | |
128 | spin_unlock_irq(&lacl->se_lun_nacl->device_list_lock); | |
129 | /* | |
130 | * Determine the actual mapped LUN value user wants.. | |
131 | * | |
132 | * This value is what the SCSI Initiator actually sees the | |
133 | * iscsi/$IQN/$TPGT/lun/lun_* as on their SCSI Initiator Ports. | |
134 | */ | |
135 | ret = core_dev_add_initiator_node_lun_acl(se_tpg, lacl, | |
136 | lun->unpacked_lun, lun_access); | |
137 | ||
138 | return (ret < 0) ? -EINVAL : 0; | |
139 | } | |
140 | ||
141 | static int target_fabric_mappedlun_unlink( | |
142 | struct config_item *lun_acl_ci, | |
143 | struct config_item *lun_ci) | |
144 | { | |
145 | struct se_lun *lun; | |
146 | struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci), | |
147 | struct se_lun_acl, se_lun_group); | |
148 | struct se_node_acl *nacl = lacl->se_lun_nacl; | |
f2083241 | 149 | struct se_dev_entry *deve = nacl->device_list[lacl->mapped_lun]; |
c66ac9db NB |
150 | struct se_portal_group *se_tpg; |
151 | /* | |
152 | * Determine if the underlying MappedLUN has already been released.. | |
153 | */ | |
6708bb27 | 154 | if (!deve->se_lun) |
c66ac9db NB |
155 | return 0; |
156 | ||
157 | lun = container_of(to_config_group(lun_ci), struct se_lun, lun_group); | |
158 | se_tpg = lun->lun_sep->sep_tpg; | |
159 | ||
160 | core_dev_del_initiator_node_lun_acl(se_tpg, lun, lacl); | |
161 | return 0; | |
162 | } | |
163 | ||
164 | CONFIGFS_EATTR_STRUCT(target_fabric_mappedlun, se_lun_acl); | |
165 | #define TCM_MAPPEDLUN_ATTR(_name, _mode) \ | |
166 | static struct target_fabric_mappedlun_attribute target_fabric_mappedlun_##_name = \ | |
167 | __CONFIGFS_EATTR(_name, _mode, \ | |
168 | target_fabric_mappedlun_show_##_name, \ | |
169 | target_fabric_mappedlun_store_##_name); | |
170 | ||
171 | static ssize_t target_fabric_mappedlun_show_write_protect( | |
172 | struct se_lun_acl *lacl, | |
173 | char *page) | |
174 | { | |
175 | struct se_node_acl *se_nacl = lacl->se_lun_nacl; | |
176 | struct se_dev_entry *deve; | |
177 | ssize_t len; | |
178 | ||
179 | spin_lock_irq(&se_nacl->device_list_lock); | |
f2083241 | 180 | deve = se_nacl->device_list[lacl->mapped_lun]; |
c66ac9db NB |
181 | len = sprintf(page, "%d\n", |
182 | (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY) ? | |
183 | 1 : 0); | |
184 | spin_unlock_irq(&se_nacl->device_list_lock); | |
185 | ||
186 | return len; | |
187 | } | |
188 | ||
189 | static ssize_t target_fabric_mappedlun_store_write_protect( | |
190 | struct se_lun_acl *lacl, | |
191 | const char *page, | |
192 | size_t count) | |
193 | { | |
194 | struct se_node_acl *se_nacl = lacl->se_lun_nacl; | |
195 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
196 | unsigned long op; | |
197 | ||
198 | if (strict_strtoul(page, 0, &op)) | |
199 | return -EINVAL; | |
200 | ||
201 | if ((op != 1) && (op != 0)) | |
202 | return -EINVAL; | |
203 | ||
204 | core_update_device_list_access(lacl->mapped_lun, (op) ? | |
205 | TRANSPORT_LUNFLAGS_READ_ONLY : | |
206 | TRANSPORT_LUNFLAGS_READ_WRITE, | |
207 | lacl->se_lun_nacl); | |
208 | ||
6708bb27 | 209 | pr_debug("%s_ConfigFS: Changed Initiator ACL: %s" |
c66ac9db | 210 | " Mapped LUN: %u Write Protect bit to %s\n", |
e3d6f909 | 211 | se_tpg->se_tpg_tfo->get_fabric_name(), |
c66ac9db NB |
212 | lacl->initiatorname, lacl->mapped_lun, (op) ? "ON" : "OFF"); |
213 | ||
214 | return count; | |
215 | ||
216 | } | |
217 | ||
218 | TCM_MAPPEDLUN_ATTR(write_protect, S_IRUGO | S_IWUSR); | |
219 | ||
220 | CONFIGFS_EATTR_OPS(target_fabric_mappedlun, se_lun_acl, se_lun_group); | |
221 | ||
1f6fe7cb NB |
222 | static void target_fabric_mappedlun_release(struct config_item *item) |
223 | { | |
224 | struct se_lun_acl *lacl = container_of(to_config_group(item), | |
225 | struct se_lun_acl, se_lun_group); | |
226 | struct se_portal_group *se_tpg = lacl->se_lun_nacl->se_tpg; | |
227 | ||
228 | core_dev_free_initiator_node_lun_acl(se_tpg, lacl); | |
229 | } | |
230 | ||
c66ac9db NB |
231 | static struct configfs_attribute *target_fabric_mappedlun_attrs[] = { |
232 | &target_fabric_mappedlun_write_protect.attr, | |
233 | NULL, | |
234 | }; | |
235 | ||
236 | static struct configfs_item_operations target_fabric_mappedlun_item_ops = { | |
1f6fe7cb | 237 | .release = target_fabric_mappedlun_release, |
c66ac9db NB |
238 | .show_attribute = target_fabric_mappedlun_attr_show, |
239 | .store_attribute = target_fabric_mappedlun_attr_store, | |
240 | .allow_link = target_fabric_mappedlun_link, | |
241 | .drop_link = target_fabric_mappedlun_unlink, | |
242 | }; | |
243 | ||
244 | TF_CIT_SETUP(tpg_mappedlun, &target_fabric_mappedlun_item_ops, NULL, | |
245 | target_fabric_mappedlun_attrs); | |
246 | ||
247 | /* End of tfc_tpg_mappedlun_cit */ | |
248 | ||
12d23384 NB |
249 | /* Start of tfc_tpg_mappedlun_port_cit */ |
250 | ||
251 | static struct config_group *target_core_mappedlun_stat_mkdir( | |
252 | struct config_group *group, | |
253 | const char *name) | |
254 | { | |
255 | return ERR_PTR(-ENOSYS); | |
256 | } | |
257 | ||
258 | static void target_core_mappedlun_stat_rmdir( | |
259 | struct config_group *group, | |
260 | struct config_item *item) | |
261 | { | |
262 | return; | |
263 | } | |
264 | ||
265 | static struct configfs_group_operations target_fabric_mappedlun_stat_group_ops = { | |
266 | .make_group = target_core_mappedlun_stat_mkdir, | |
267 | .drop_item = target_core_mappedlun_stat_rmdir, | |
268 | }; | |
269 | ||
270 | TF_CIT_SETUP(tpg_mappedlun_stat, NULL, &target_fabric_mappedlun_stat_group_ops, | |
271 | NULL); | |
272 | ||
273 | /* End of tfc_tpg_mappedlun_port_cit */ | |
274 | ||
c66ac9db NB |
275 | /* Start of tfc_tpg_nacl_attrib_cit */ |
276 | ||
277 | CONFIGFS_EATTR_OPS(target_fabric_nacl_attrib, se_node_acl, acl_attrib_group); | |
278 | ||
279 | static struct configfs_item_operations target_fabric_nacl_attrib_item_ops = { | |
280 | .show_attribute = target_fabric_nacl_attrib_attr_show, | |
281 | .store_attribute = target_fabric_nacl_attrib_attr_store, | |
282 | }; | |
283 | ||
284 | TF_CIT_SETUP(tpg_nacl_attrib, &target_fabric_nacl_attrib_item_ops, NULL, NULL); | |
285 | ||
286 | /* End of tfc_tpg_nacl_attrib_cit */ | |
287 | ||
288 | /* Start of tfc_tpg_nacl_auth_cit */ | |
289 | ||
290 | CONFIGFS_EATTR_OPS(target_fabric_nacl_auth, se_node_acl, acl_auth_group); | |
291 | ||
292 | static struct configfs_item_operations target_fabric_nacl_auth_item_ops = { | |
293 | .show_attribute = target_fabric_nacl_auth_attr_show, | |
294 | .store_attribute = target_fabric_nacl_auth_attr_store, | |
295 | }; | |
296 | ||
297 | TF_CIT_SETUP(tpg_nacl_auth, &target_fabric_nacl_auth_item_ops, NULL, NULL); | |
298 | ||
299 | /* End of tfc_tpg_nacl_auth_cit */ | |
300 | ||
301 | /* Start of tfc_tpg_nacl_param_cit */ | |
302 | ||
303 | CONFIGFS_EATTR_OPS(target_fabric_nacl_param, se_node_acl, acl_param_group); | |
304 | ||
305 | static struct configfs_item_operations target_fabric_nacl_param_item_ops = { | |
306 | .show_attribute = target_fabric_nacl_param_attr_show, | |
307 | .store_attribute = target_fabric_nacl_param_attr_store, | |
308 | }; | |
309 | ||
310 | TF_CIT_SETUP(tpg_nacl_param, &target_fabric_nacl_param_item_ops, NULL, NULL); | |
311 | ||
312 | /* End of tfc_tpg_nacl_param_cit */ | |
313 | ||
314 | /* Start of tfc_tpg_nacl_base_cit */ | |
315 | ||
316 | CONFIGFS_EATTR_OPS(target_fabric_nacl_base, se_node_acl, acl_group); | |
317 | ||
318 | static struct config_group *target_fabric_make_mappedlun( | |
319 | struct config_group *group, | |
320 | const char *name) | |
321 | { | |
322 | struct se_node_acl *se_nacl = container_of(group, | |
323 | struct se_node_acl, acl_group); | |
324 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
325 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
326 | struct se_lun_acl *lacl; | |
327 | struct config_item *acl_ci; | |
12d23384 | 328 | struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; |
c66ac9db NB |
329 | char *buf; |
330 | unsigned long mapped_lun; | |
331 | int ret = 0; | |
332 | ||
333 | acl_ci = &group->cg_item; | |
6708bb27 AG |
334 | if (!acl_ci) { |
335 | pr_err("Unable to locatel acl_ci\n"); | |
c66ac9db NB |
336 | return NULL; |
337 | } | |
338 | ||
339 | buf = kzalloc(strlen(name) + 1, GFP_KERNEL); | |
6708bb27 AG |
340 | if (!buf) { |
341 | pr_err("Unable to allocate memory for name buf\n"); | |
c66ac9db NB |
342 | return ERR_PTR(-ENOMEM); |
343 | } | |
344 | snprintf(buf, strlen(name) + 1, "%s", name); | |
345 | /* | |
346 | * Make sure user is creating iscsi/$IQN/$TPGT/acls/$INITIATOR/lun_$ID. | |
347 | */ | |
348 | if (strstr(buf, "lun_") != buf) { | |
6708bb27 | 349 | pr_err("Unable to locate \"lun_\" from buf: %s" |
c66ac9db NB |
350 | " name: %s\n", buf, name); |
351 | ret = -EINVAL; | |
352 | goto out; | |
353 | } | |
354 | /* | |
355 | * Determine the Mapped LUN value. This is what the SCSI Initiator | |
356 | * Port will actually see. | |
357 | */ | |
358 | if (strict_strtoul(buf + 4, 0, &mapped_lun) || mapped_lun > UINT_MAX) { | |
359 | ret = -EINVAL; | |
360 | goto out; | |
361 | } | |
fbbf8555 NB |
362 | if (mapped_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) { |
363 | pr_err("Mapped LUN: %lu exceeds TRANSPORT_MAX_LUNS_PER_TPG" | |
364 | "-1: %u for Target Portal Group: %u\n", mapped_lun, | |
365 | TRANSPORT_MAX_LUNS_PER_TPG-1, | |
366 | se_tpg->se_tpg_tfo->tpg_get_tag(se_tpg)); | |
367 | ret = -EINVAL; | |
368 | goto out; | |
369 | } | |
c66ac9db | 370 | |
fcf29481 NB |
371 | lacl = core_dev_init_initiator_node_lun_acl(se_tpg, se_nacl, |
372 | mapped_lun, &ret); | |
6708bb27 | 373 | if (!lacl) { |
12d23384 | 374 | ret = -EINVAL; |
c66ac9db | 375 | goto out; |
12d23384 NB |
376 | } |
377 | ||
378 | lacl_cg = &lacl->se_lun_group; | |
13f6a914 | 379 | lacl_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, |
12d23384 NB |
380 | GFP_KERNEL); |
381 | if (!lacl_cg->default_groups) { | |
6708bb27 | 382 | pr_err("Unable to allocate lacl_cg->default_groups\n"); |
12d23384 NB |
383 | ret = -ENOMEM; |
384 | goto out; | |
385 | } | |
c66ac9db NB |
386 | |
387 | config_group_init_type_name(&lacl->se_lun_group, name, | |
388 | &TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_cit); | |
12d23384 NB |
389 | config_group_init_type_name(&lacl->ml_stat_grps.stat_group, |
390 | "statistics", &TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_stat_cit); | |
391 | lacl_cg->default_groups[0] = &lacl->ml_stat_grps.stat_group; | |
392 | lacl_cg->default_groups[1] = NULL; | |
393 | ||
e3d6f909 | 394 | ml_stat_grp = &lacl->ml_stat_grps.stat_group; |
13f6a914 | 395 | ml_stat_grp->default_groups = kmalloc(sizeof(struct config_group *) * 3, |
12d23384 NB |
396 | GFP_KERNEL); |
397 | if (!ml_stat_grp->default_groups) { | |
6708bb27 | 398 | pr_err("Unable to allocate ml_stat_grp->default_groups\n"); |
12d23384 NB |
399 | ret = -ENOMEM; |
400 | goto out; | |
401 | } | |
402 | target_stat_setup_mappedlun_default_groups(lacl); | |
c66ac9db NB |
403 | |
404 | kfree(buf); | |
405 | return &lacl->se_lun_group; | |
406 | out: | |
12d23384 NB |
407 | if (lacl_cg) |
408 | kfree(lacl_cg->default_groups); | |
c66ac9db NB |
409 | kfree(buf); |
410 | return ERR_PTR(ret); | |
411 | } | |
412 | ||
413 | static void target_fabric_drop_mappedlun( | |
414 | struct config_group *group, | |
415 | struct config_item *item) | |
416 | { | |
12d23384 NB |
417 | struct se_lun_acl *lacl = container_of(to_config_group(item), |
418 | struct se_lun_acl, se_lun_group); | |
419 | struct config_item *df_item; | |
420 | struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; | |
421 | int i; | |
422 | ||
e3d6f909 | 423 | ml_stat_grp = &lacl->ml_stat_grps.stat_group; |
12d23384 NB |
424 | for (i = 0; ml_stat_grp->default_groups[i]; i++) { |
425 | df_item = &ml_stat_grp->default_groups[i]->cg_item; | |
426 | ml_stat_grp->default_groups[i] = NULL; | |
427 | config_item_put(df_item); | |
428 | } | |
429 | kfree(ml_stat_grp->default_groups); | |
430 | ||
431 | lacl_cg = &lacl->se_lun_group; | |
432 | for (i = 0; lacl_cg->default_groups[i]; i++) { | |
433 | df_item = &lacl_cg->default_groups[i]->cg_item; | |
434 | lacl_cg->default_groups[i] = NULL; | |
435 | config_item_put(df_item); | |
436 | } | |
437 | kfree(lacl_cg->default_groups); | |
438 | ||
c66ac9db | 439 | config_item_put(item); |
1f6fe7cb NB |
440 | } |
441 | ||
442 | static void target_fabric_nacl_base_release(struct config_item *item) | |
443 | { | |
444 | struct se_node_acl *se_nacl = container_of(to_config_group(item), | |
445 | struct se_node_acl, acl_group); | |
446 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
447 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
448 | ||
449 | tf->tf_ops.fabric_drop_nodeacl(se_nacl); | |
c66ac9db NB |
450 | } |
451 | ||
452 | static struct configfs_item_operations target_fabric_nacl_base_item_ops = { | |
1f6fe7cb | 453 | .release = target_fabric_nacl_base_release, |
c66ac9db NB |
454 | .show_attribute = target_fabric_nacl_base_attr_show, |
455 | .store_attribute = target_fabric_nacl_base_attr_store, | |
456 | }; | |
457 | ||
458 | static struct configfs_group_operations target_fabric_nacl_base_group_ops = { | |
459 | .make_group = target_fabric_make_mappedlun, | |
460 | .drop_item = target_fabric_drop_mappedlun, | |
461 | }; | |
462 | ||
463 | TF_CIT_SETUP(tpg_nacl_base, &target_fabric_nacl_base_item_ops, | |
464 | &target_fabric_nacl_base_group_ops, NULL); | |
465 | ||
466 | /* End of tfc_tpg_nacl_base_cit */ | |
467 | ||
12d23384 NB |
468 | /* Start of tfc_node_fabric_stats_cit */ |
469 | /* | |
470 | * This is used as a placeholder for struct se_node_acl->acl_fabric_stat_group | |
471 | * to allow fabrics access to ->acl_fabric_stat_group->default_groups[] | |
472 | */ | |
473 | TF_CIT_SETUP(tpg_nacl_stat, NULL, NULL, NULL); | |
474 | ||
475 | /* End of tfc_wwn_fabric_stats_cit */ | |
476 | ||
c66ac9db NB |
477 | /* Start of tfc_tpg_nacl_cit */ |
478 | ||
479 | static struct config_group *target_fabric_make_nodeacl( | |
480 | struct config_group *group, | |
481 | const char *name) | |
482 | { | |
483 | struct se_portal_group *se_tpg = container_of(group, | |
484 | struct se_portal_group, tpg_acl_group); | |
485 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
486 | struct se_node_acl *se_nacl; | |
487 | struct config_group *nacl_cg; | |
488 | ||
6708bb27 AG |
489 | if (!tf->tf_ops.fabric_make_nodeacl) { |
490 | pr_err("tf->tf_ops.fabric_make_nodeacl is NULL\n"); | |
c66ac9db NB |
491 | return ERR_PTR(-ENOSYS); |
492 | } | |
493 | ||
494 | se_nacl = tf->tf_ops.fabric_make_nodeacl(se_tpg, group, name); | |
495 | if (IS_ERR(se_nacl)) | |
e1750ba2 | 496 | return ERR_CAST(se_nacl); |
c66ac9db NB |
497 | |
498 | nacl_cg = &se_nacl->acl_group; | |
499 | nacl_cg->default_groups = se_nacl->acl_default_groups; | |
500 | nacl_cg->default_groups[0] = &se_nacl->acl_attrib_group; | |
501 | nacl_cg->default_groups[1] = &se_nacl->acl_auth_group; | |
502 | nacl_cg->default_groups[2] = &se_nacl->acl_param_group; | |
12d23384 NB |
503 | nacl_cg->default_groups[3] = &se_nacl->acl_fabric_stat_group; |
504 | nacl_cg->default_groups[4] = NULL; | |
c66ac9db NB |
505 | |
506 | config_group_init_type_name(&se_nacl->acl_group, name, | |
507 | &TF_CIT_TMPL(tf)->tfc_tpg_nacl_base_cit); | |
508 | config_group_init_type_name(&se_nacl->acl_attrib_group, "attrib", | |
509 | &TF_CIT_TMPL(tf)->tfc_tpg_nacl_attrib_cit); | |
510 | config_group_init_type_name(&se_nacl->acl_auth_group, "auth", | |
511 | &TF_CIT_TMPL(tf)->tfc_tpg_nacl_auth_cit); | |
512 | config_group_init_type_name(&se_nacl->acl_param_group, "param", | |
513 | &TF_CIT_TMPL(tf)->tfc_tpg_nacl_param_cit); | |
12d23384 NB |
514 | config_group_init_type_name(&se_nacl->acl_fabric_stat_group, |
515 | "fabric_statistics", | |
516 | &TF_CIT_TMPL(tf)->tfc_tpg_nacl_stat_cit); | |
c66ac9db NB |
517 | |
518 | return &se_nacl->acl_group; | |
519 | } | |
520 | ||
521 | static void target_fabric_drop_nodeacl( | |
522 | struct config_group *group, | |
523 | struct config_item *item) | |
524 | { | |
c66ac9db NB |
525 | struct se_node_acl *se_nacl = container_of(to_config_group(item), |
526 | struct se_node_acl, acl_group); | |
527 | struct config_item *df_item; | |
528 | struct config_group *nacl_cg; | |
529 | int i; | |
530 | ||
531 | nacl_cg = &se_nacl->acl_group; | |
532 | for (i = 0; nacl_cg->default_groups[i]; i++) { | |
533 | df_item = &nacl_cg->default_groups[i]->cg_item; | |
534 | nacl_cg->default_groups[i] = NULL; | |
535 | config_item_put(df_item); | |
536 | } | |
1f6fe7cb NB |
537 | /* |
538 | * struct se_node_acl free is done in target_fabric_nacl_base_release() | |
539 | */ | |
c66ac9db | 540 | config_item_put(item); |
c66ac9db NB |
541 | } |
542 | ||
543 | static struct configfs_group_operations target_fabric_nacl_group_ops = { | |
544 | .make_group = target_fabric_make_nodeacl, | |
545 | .drop_item = target_fabric_drop_nodeacl, | |
546 | }; | |
547 | ||
548 | TF_CIT_SETUP(tpg_nacl, NULL, &target_fabric_nacl_group_ops, NULL); | |
549 | ||
550 | /* End of tfc_tpg_nacl_cit */ | |
551 | ||
552 | /* Start of tfc_tpg_np_base_cit */ | |
553 | ||
554 | CONFIGFS_EATTR_OPS(target_fabric_np_base, se_tpg_np, tpg_np_group); | |
555 | ||
1f6fe7cb NB |
556 | static void target_fabric_np_base_release(struct config_item *item) |
557 | { | |
558 | struct se_tpg_np *se_tpg_np = container_of(to_config_group(item), | |
559 | struct se_tpg_np, tpg_np_group); | |
560 | struct se_portal_group *se_tpg = se_tpg_np->tpg_np_parent; | |
561 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
562 | ||
563 | tf->tf_ops.fabric_drop_np(se_tpg_np); | |
564 | } | |
565 | ||
c66ac9db | 566 | static struct configfs_item_operations target_fabric_np_base_item_ops = { |
1f6fe7cb | 567 | .release = target_fabric_np_base_release, |
c66ac9db NB |
568 | .show_attribute = target_fabric_np_base_attr_show, |
569 | .store_attribute = target_fabric_np_base_attr_store, | |
570 | }; | |
571 | ||
572 | TF_CIT_SETUP(tpg_np_base, &target_fabric_np_base_item_ops, NULL, NULL); | |
573 | ||
574 | /* End of tfc_tpg_np_base_cit */ | |
575 | ||
576 | /* Start of tfc_tpg_np_cit */ | |
577 | ||
578 | static struct config_group *target_fabric_make_np( | |
579 | struct config_group *group, | |
580 | const char *name) | |
581 | { | |
582 | struct se_portal_group *se_tpg = container_of(group, | |
583 | struct se_portal_group, tpg_np_group); | |
584 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
585 | struct se_tpg_np *se_tpg_np; | |
586 | ||
6708bb27 AG |
587 | if (!tf->tf_ops.fabric_make_np) { |
588 | pr_err("tf->tf_ops.fabric_make_np is NULL\n"); | |
c66ac9db NB |
589 | return ERR_PTR(-ENOSYS); |
590 | } | |
591 | ||
592 | se_tpg_np = tf->tf_ops.fabric_make_np(se_tpg, group, name); | |
6708bb27 | 593 | if (!se_tpg_np || IS_ERR(se_tpg_np)) |
c66ac9db NB |
594 | return ERR_PTR(-EINVAL); |
595 | ||
1f6fe7cb | 596 | se_tpg_np->tpg_np_parent = se_tpg; |
c66ac9db NB |
597 | config_group_init_type_name(&se_tpg_np->tpg_np_group, name, |
598 | &TF_CIT_TMPL(tf)->tfc_tpg_np_base_cit); | |
599 | ||
600 | return &se_tpg_np->tpg_np_group; | |
601 | } | |
602 | ||
603 | static void target_fabric_drop_np( | |
604 | struct config_group *group, | |
605 | struct config_item *item) | |
606 | { | |
1f6fe7cb NB |
607 | /* |
608 | * struct se_tpg_np is released via target_fabric_np_base_release() | |
609 | */ | |
c66ac9db | 610 | config_item_put(item); |
c66ac9db NB |
611 | } |
612 | ||
613 | static struct configfs_group_operations target_fabric_np_group_ops = { | |
614 | .make_group = &target_fabric_make_np, | |
615 | .drop_item = &target_fabric_drop_np, | |
616 | }; | |
617 | ||
618 | TF_CIT_SETUP(tpg_np, NULL, &target_fabric_np_group_ops, NULL); | |
619 | ||
620 | /* End of tfc_tpg_np_cit */ | |
621 | ||
622 | /* Start of tfc_tpg_port_cit */ | |
623 | ||
624 | CONFIGFS_EATTR_STRUCT(target_fabric_port, se_lun); | |
625 | #define TCM_PORT_ATTR(_name, _mode) \ | |
626 | static struct target_fabric_port_attribute target_fabric_port_##_name = \ | |
627 | __CONFIGFS_EATTR(_name, _mode, \ | |
628 | target_fabric_port_show_attr_##_name, \ | |
629 | target_fabric_port_store_attr_##_name); | |
630 | ||
631 | #define TCM_PORT_ATTOR_RO(_name) \ | |
632 | __CONFIGFS_EATTR_RO(_name, \ | |
633 | target_fabric_port_show_attr_##_name); | |
634 | ||
635 | /* | |
636 | * alua_tg_pt_gp | |
637 | */ | |
638 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_gp( | |
639 | struct se_lun *lun, | |
640 | char *page) | |
641 | { | |
6708bb27 | 642 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
643 | return -ENODEV; |
644 | ||
645 | return core_alua_show_tg_pt_gp_info(lun->lun_sep, page); | |
646 | } | |
647 | ||
648 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_gp( | |
649 | struct se_lun *lun, | |
650 | const char *page, | |
651 | size_t count) | |
652 | { | |
6708bb27 | 653 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
654 | return -ENODEV; |
655 | ||
656 | return core_alua_store_tg_pt_gp_info(lun->lun_sep, page, count); | |
657 | } | |
658 | ||
659 | TCM_PORT_ATTR(alua_tg_pt_gp, S_IRUGO | S_IWUSR); | |
660 | ||
661 | /* | |
662 | * alua_tg_pt_offline | |
663 | */ | |
664 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_offline( | |
665 | struct se_lun *lun, | |
666 | char *page) | |
667 | { | |
6708bb27 | 668 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
669 | return -ENODEV; |
670 | ||
671 | return core_alua_show_offline_bit(lun, page); | |
672 | } | |
673 | ||
674 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_offline( | |
675 | struct se_lun *lun, | |
676 | const char *page, | |
677 | size_t count) | |
678 | { | |
6708bb27 | 679 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
680 | return -ENODEV; |
681 | ||
682 | return core_alua_store_offline_bit(lun, page, count); | |
683 | } | |
684 | ||
685 | TCM_PORT_ATTR(alua_tg_pt_offline, S_IRUGO | S_IWUSR); | |
686 | ||
687 | /* | |
688 | * alua_tg_pt_status | |
689 | */ | |
690 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_status( | |
691 | struct se_lun *lun, | |
692 | char *page) | |
693 | { | |
6708bb27 | 694 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
695 | return -ENODEV; |
696 | ||
697 | return core_alua_show_secondary_status(lun, page); | |
698 | } | |
699 | ||
700 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_status( | |
701 | struct se_lun *lun, | |
702 | const char *page, | |
703 | size_t count) | |
704 | { | |
6708bb27 | 705 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
706 | return -ENODEV; |
707 | ||
708 | return core_alua_store_secondary_status(lun, page, count); | |
709 | } | |
710 | ||
711 | TCM_PORT_ATTR(alua_tg_pt_status, S_IRUGO | S_IWUSR); | |
712 | ||
713 | /* | |
714 | * alua_tg_pt_write_md | |
715 | */ | |
716 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_write_md( | |
717 | struct se_lun *lun, | |
718 | char *page) | |
719 | { | |
6708bb27 | 720 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
721 | return -ENODEV; |
722 | ||
723 | return core_alua_show_secondary_write_metadata(lun, page); | |
724 | } | |
725 | ||
726 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_write_md( | |
727 | struct se_lun *lun, | |
728 | const char *page, | |
729 | size_t count) | |
730 | { | |
6708bb27 | 731 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
732 | return -ENODEV; |
733 | ||
734 | return core_alua_store_secondary_write_metadata(lun, page, count); | |
735 | } | |
736 | ||
737 | TCM_PORT_ATTR(alua_tg_pt_write_md, S_IRUGO | S_IWUSR); | |
738 | ||
739 | ||
740 | static struct configfs_attribute *target_fabric_port_attrs[] = { | |
741 | &target_fabric_port_alua_tg_pt_gp.attr, | |
742 | &target_fabric_port_alua_tg_pt_offline.attr, | |
743 | &target_fabric_port_alua_tg_pt_status.attr, | |
744 | &target_fabric_port_alua_tg_pt_write_md.attr, | |
745 | NULL, | |
746 | }; | |
747 | ||
748 | CONFIGFS_EATTR_OPS(target_fabric_port, se_lun, lun_group); | |
749 | ||
750 | static int target_fabric_port_link( | |
751 | struct config_item *lun_ci, | |
752 | struct config_item *se_dev_ci) | |
753 | { | |
754 | struct config_item *tpg_ci; | |
c66ac9db NB |
755 | struct se_lun *lun = container_of(to_config_group(lun_ci), |
756 | struct se_lun, lun_group); | |
757 | struct se_lun *lun_p; | |
758 | struct se_portal_group *se_tpg; | |
0fd97ccf CH |
759 | struct se_device *dev = |
760 | container_of(to_config_group(se_dev_ci), struct se_device, dev_group); | |
c66ac9db NB |
761 | struct target_fabric_configfs *tf; |
762 | int ret; | |
763 | ||
0ff87549 NB |
764 | if (dev->dev_link_magic != SE_DEV_LINK_MAGIC) { |
765 | pr_err("Bad dev->dev_link_magic, not a valid se_dev_ci pointer:" | |
766 | " %p to struct se_device: %p\n", se_dev_ci, dev); | |
767 | return -EFAULT; | |
768 | } | |
769 | ||
faa06ab9 NB |
770 | if (!(dev->dev_flags & DF_CONFIGURED)) { |
771 | pr_err("se_device not configured yet, cannot port link\n"); | |
772 | return -ENODEV; | |
773 | } | |
774 | ||
c66ac9db NB |
775 | tpg_ci = &lun_ci->ci_parent->ci_group->cg_item; |
776 | se_tpg = container_of(to_config_group(tpg_ci), | |
777 | struct se_portal_group, tpg_group); | |
778 | tf = se_tpg->se_tpg_wwn->wwn_tf; | |
779 | ||
780 | if (lun->lun_se_dev != NULL) { | |
6708bb27 | 781 | pr_err("Port Symlink already exists\n"); |
c66ac9db NB |
782 | return -EEXIST; |
783 | } | |
784 | ||
2dca673b | 785 | lun_p = core_dev_add_lun(se_tpg, dev, lun->unpacked_lun); |
8d9efe53 | 786 | if (IS_ERR(lun_p)) { |
6708bb27 | 787 | pr_err("core_dev_add_lun() failed\n"); |
8d9efe53 | 788 | ret = PTR_ERR(lun_p); |
c66ac9db NB |
789 | goto out; |
790 | } | |
791 | ||
792 | if (tf->tf_ops.fabric_post_link) { | |
793 | /* | |
794 | * Call the optional fabric_post_link() to allow a | |
795 | * fabric module to setup any additional state once | |
796 | * core_dev_add_lun() has been called.. | |
797 | */ | |
798 | tf->tf_ops.fabric_post_link(se_tpg, lun); | |
799 | } | |
800 | ||
801 | return 0; | |
802 | out: | |
803 | return ret; | |
804 | } | |
805 | ||
806 | static int target_fabric_port_unlink( | |
807 | struct config_item *lun_ci, | |
808 | struct config_item *se_dev_ci) | |
809 | { | |
810 | struct se_lun *lun = container_of(to_config_group(lun_ci), | |
811 | struct se_lun, lun_group); | |
812 | struct se_portal_group *se_tpg = lun->lun_sep->sep_tpg; | |
813 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
814 | ||
815 | if (tf->tf_ops.fabric_pre_unlink) { | |
816 | /* | |
817 | * Call the optional fabric_pre_unlink() to allow a | |
818 | * fabric module to release any additional stat before | |
819 | * core_dev_del_lun() is called. | |
820 | */ | |
821 | tf->tf_ops.fabric_pre_unlink(se_tpg, lun); | |
822 | } | |
823 | ||
824 | core_dev_del_lun(se_tpg, lun->unpacked_lun); | |
825 | return 0; | |
826 | } | |
827 | ||
828 | static struct configfs_item_operations target_fabric_port_item_ops = { | |
829 | .show_attribute = target_fabric_port_attr_show, | |
830 | .store_attribute = target_fabric_port_attr_store, | |
831 | .allow_link = target_fabric_port_link, | |
832 | .drop_link = target_fabric_port_unlink, | |
833 | }; | |
834 | ||
835 | TF_CIT_SETUP(tpg_port, &target_fabric_port_item_ops, NULL, target_fabric_port_attrs); | |
836 | ||
837 | /* End of tfc_tpg_port_cit */ | |
838 | ||
12d23384 NB |
839 | /* Start of tfc_tpg_port_stat_cit */ |
840 | ||
841 | static struct config_group *target_core_port_stat_mkdir( | |
842 | struct config_group *group, | |
843 | const char *name) | |
844 | { | |
845 | return ERR_PTR(-ENOSYS); | |
846 | } | |
847 | ||
848 | static void target_core_port_stat_rmdir( | |
849 | struct config_group *group, | |
850 | struct config_item *item) | |
851 | { | |
852 | return; | |
853 | } | |
854 | ||
855 | static struct configfs_group_operations target_fabric_port_stat_group_ops = { | |
856 | .make_group = target_core_port_stat_mkdir, | |
857 | .drop_item = target_core_port_stat_rmdir, | |
858 | }; | |
859 | ||
860 | TF_CIT_SETUP(tpg_port_stat, NULL, &target_fabric_port_stat_group_ops, NULL); | |
861 | ||
862 | /* End of tfc_tpg_port_stat_cit */ | |
863 | ||
c66ac9db NB |
864 | /* Start of tfc_tpg_lun_cit */ |
865 | ||
866 | static struct config_group *target_fabric_make_lun( | |
867 | struct config_group *group, | |
868 | const char *name) | |
869 | { | |
870 | struct se_lun *lun; | |
871 | struct se_portal_group *se_tpg = container_of(group, | |
872 | struct se_portal_group, tpg_lun_group); | |
873 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
12d23384 | 874 | struct config_group *lun_cg = NULL, *port_stat_grp = NULL; |
c66ac9db | 875 | unsigned long unpacked_lun; |
12d23384 | 876 | int errno; |
c66ac9db NB |
877 | |
878 | if (strstr(name, "lun_") != name) { | |
6708bb27 | 879 | pr_err("Unable to locate \'_\" in" |
c66ac9db NB |
880 | " \"lun_$LUN_NUMBER\"\n"); |
881 | return ERR_PTR(-EINVAL); | |
882 | } | |
883 | if (strict_strtoul(name + 4, 0, &unpacked_lun) || unpacked_lun > UINT_MAX) | |
884 | return ERR_PTR(-EINVAL); | |
885 | ||
886 | lun = core_get_lun_from_tpg(se_tpg, unpacked_lun); | |
6708bb27 | 887 | if (!lun) |
c66ac9db NB |
888 | return ERR_PTR(-EINVAL); |
889 | ||
12d23384 | 890 | lun_cg = &lun->lun_group; |
13f6a914 | 891 | lun_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, |
12d23384 NB |
892 | GFP_KERNEL); |
893 | if (!lun_cg->default_groups) { | |
6708bb27 | 894 | pr_err("Unable to allocate lun_cg->default_groups\n"); |
12d23384 NB |
895 | return ERR_PTR(-ENOMEM); |
896 | } | |
897 | ||
c66ac9db NB |
898 | config_group_init_type_name(&lun->lun_group, name, |
899 | &TF_CIT_TMPL(tf)->tfc_tpg_port_cit); | |
12d23384 NB |
900 | config_group_init_type_name(&lun->port_stat_grps.stat_group, |
901 | "statistics", &TF_CIT_TMPL(tf)->tfc_tpg_port_stat_cit); | |
902 | lun_cg->default_groups[0] = &lun->port_stat_grps.stat_group; | |
903 | lun_cg->default_groups[1] = NULL; | |
904 | ||
e3d6f909 | 905 | port_stat_grp = &lun->port_stat_grps.stat_group; |
12d23384 NB |
906 | port_stat_grp->default_groups = kzalloc(sizeof(struct config_group) * 3, |
907 | GFP_KERNEL); | |
908 | if (!port_stat_grp->default_groups) { | |
6708bb27 | 909 | pr_err("Unable to allocate port_stat_grp->default_groups\n"); |
12d23384 NB |
910 | errno = -ENOMEM; |
911 | goto out; | |
912 | } | |
913 | target_stat_setup_port_default_groups(lun); | |
c66ac9db NB |
914 | |
915 | return &lun->lun_group; | |
12d23384 NB |
916 | out: |
917 | if (lun_cg) | |
918 | kfree(lun_cg->default_groups); | |
919 | return ERR_PTR(errno); | |
c66ac9db NB |
920 | } |
921 | ||
922 | static void target_fabric_drop_lun( | |
923 | struct config_group *group, | |
924 | struct config_item *item) | |
925 | { | |
12d23384 NB |
926 | struct se_lun *lun = container_of(to_config_group(item), |
927 | struct se_lun, lun_group); | |
928 | struct config_item *df_item; | |
929 | struct config_group *lun_cg, *port_stat_grp; | |
930 | int i; | |
931 | ||
e3d6f909 | 932 | port_stat_grp = &lun->port_stat_grps.stat_group; |
12d23384 NB |
933 | for (i = 0; port_stat_grp->default_groups[i]; i++) { |
934 | df_item = &port_stat_grp->default_groups[i]->cg_item; | |
935 | port_stat_grp->default_groups[i] = NULL; | |
936 | config_item_put(df_item); | |
937 | } | |
938 | kfree(port_stat_grp->default_groups); | |
939 | ||
940 | lun_cg = &lun->lun_group; | |
941 | for (i = 0; lun_cg->default_groups[i]; i++) { | |
942 | df_item = &lun_cg->default_groups[i]->cg_item; | |
943 | lun_cg->default_groups[i] = NULL; | |
944 | config_item_put(df_item); | |
945 | } | |
946 | kfree(lun_cg->default_groups); | |
947 | ||
c66ac9db NB |
948 | config_item_put(item); |
949 | } | |
950 | ||
951 | static struct configfs_group_operations target_fabric_lun_group_ops = { | |
952 | .make_group = &target_fabric_make_lun, | |
953 | .drop_item = &target_fabric_drop_lun, | |
954 | }; | |
955 | ||
956 | TF_CIT_SETUP(tpg_lun, NULL, &target_fabric_lun_group_ops, NULL); | |
957 | ||
958 | /* End of tfc_tpg_lun_cit */ | |
959 | ||
960 | /* Start of tfc_tpg_attrib_cit */ | |
961 | ||
962 | CONFIGFS_EATTR_OPS(target_fabric_tpg_attrib, se_portal_group, tpg_attrib_group); | |
963 | ||
964 | static struct configfs_item_operations target_fabric_tpg_attrib_item_ops = { | |
965 | .show_attribute = target_fabric_tpg_attrib_attr_show, | |
966 | .store_attribute = target_fabric_tpg_attrib_attr_store, | |
967 | }; | |
968 | ||
969 | TF_CIT_SETUP(tpg_attrib, &target_fabric_tpg_attrib_item_ops, NULL, NULL); | |
970 | ||
971 | /* End of tfc_tpg_attrib_cit */ | |
972 | ||
973 | /* Start of tfc_tpg_param_cit */ | |
974 | ||
975 | CONFIGFS_EATTR_OPS(target_fabric_tpg_param, se_portal_group, tpg_param_group); | |
976 | ||
977 | static struct configfs_item_operations target_fabric_tpg_param_item_ops = { | |
978 | .show_attribute = target_fabric_tpg_param_attr_show, | |
979 | .store_attribute = target_fabric_tpg_param_attr_store, | |
980 | }; | |
981 | ||
982 | TF_CIT_SETUP(tpg_param, &target_fabric_tpg_param_item_ops, NULL, NULL); | |
983 | ||
984 | /* End of tfc_tpg_param_cit */ | |
985 | ||
986 | /* Start of tfc_tpg_base_cit */ | |
987 | /* | |
988 | * For use with TF_TPG_ATTR() and TF_TPG_ATTR_RO() | |
989 | */ | |
990 | CONFIGFS_EATTR_OPS(target_fabric_tpg, se_portal_group, tpg_group); | |
991 | ||
1f6fe7cb NB |
992 | static void target_fabric_tpg_release(struct config_item *item) |
993 | { | |
994 | struct se_portal_group *se_tpg = container_of(to_config_group(item), | |
995 | struct se_portal_group, tpg_group); | |
996 | struct se_wwn *wwn = se_tpg->se_tpg_wwn; | |
997 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
998 | ||
999 | tf->tf_ops.fabric_drop_tpg(se_tpg); | |
1000 | } | |
1001 | ||
c66ac9db | 1002 | static struct configfs_item_operations target_fabric_tpg_base_item_ops = { |
1f6fe7cb | 1003 | .release = target_fabric_tpg_release, |
c66ac9db NB |
1004 | .show_attribute = target_fabric_tpg_attr_show, |
1005 | .store_attribute = target_fabric_tpg_attr_store, | |
1006 | }; | |
1007 | ||
1008 | TF_CIT_SETUP(tpg_base, &target_fabric_tpg_base_item_ops, NULL, NULL); | |
1009 | ||
1010 | /* End of tfc_tpg_base_cit */ | |
1011 | ||
1012 | /* Start of tfc_tpg_cit */ | |
1013 | ||
1014 | static struct config_group *target_fabric_make_tpg( | |
1015 | struct config_group *group, | |
1016 | const char *name) | |
1017 | { | |
1018 | struct se_wwn *wwn = container_of(group, struct se_wwn, wwn_group); | |
1019 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
1020 | struct se_portal_group *se_tpg; | |
1021 | ||
6708bb27 AG |
1022 | if (!tf->tf_ops.fabric_make_tpg) { |
1023 | pr_err("tf->tf_ops.fabric_make_tpg is NULL\n"); | |
c66ac9db NB |
1024 | return ERR_PTR(-ENOSYS); |
1025 | } | |
1026 | ||
1027 | se_tpg = tf->tf_ops.fabric_make_tpg(wwn, group, name); | |
6708bb27 | 1028 | if (!se_tpg || IS_ERR(se_tpg)) |
c66ac9db NB |
1029 | return ERR_PTR(-EINVAL); |
1030 | /* | |
1031 | * Setup default groups from pre-allocated se_tpg->tpg_default_groups | |
1032 | */ | |
1033 | se_tpg->tpg_group.default_groups = se_tpg->tpg_default_groups; | |
1034 | se_tpg->tpg_group.default_groups[0] = &se_tpg->tpg_lun_group; | |
1035 | se_tpg->tpg_group.default_groups[1] = &se_tpg->tpg_np_group; | |
1036 | se_tpg->tpg_group.default_groups[2] = &se_tpg->tpg_acl_group; | |
1037 | se_tpg->tpg_group.default_groups[3] = &se_tpg->tpg_attrib_group; | |
1038 | se_tpg->tpg_group.default_groups[4] = &se_tpg->tpg_param_group; | |
1039 | se_tpg->tpg_group.default_groups[5] = NULL; | |
1040 | ||
1041 | config_group_init_type_name(&se_tpg->tpg_group, name, | |
1042 | &TF_CIT_TMPL(tf)->tfc_tpg_base_cit); | |
1043 | config_group_init_type_name(&se_tpg->tpg_lun_group, "lun", | |
1044 | &TF_CIT_TMPL(tf)->tfc_tpg_lun_cit); | |
1045 | config_group_init_type_name(&se_tpg->tpg_np_group, "np", | |
1046 | &TF_CIT_TMPL(tf)->tfc_tpg_np_cit); | |
1047 | config_group_init_type_name(&se_tpg->tpg_acl_group, "acls", | |
1048 | &TF_CIT_TMPL(tf)->tfc_tpg_nacl_cit); | |
1049 | config_group_init_type_name(&se_tpg->tpg_attrib_group, "attrib", | |
1050 | &TF_CIT_TMPL(tf)->tfc_tpg_attrib_cit); | |
1051 | config_group_init_type_name(&se_tpg->tpg_param_group, "param", | |
1052 | &TF_CIT_TMPL(tf)->tfc_tpg_param_cit); | |
1053 | ||
1054 | return &se_tpg->tpg_group; | |
1055 | } | |
1056 | ||
1057 | static void target_fabric_drop_tpg( | |
1058 | struct config_group *group, | |
1059 | struct config_item *item) | |
1060 | { | |
c66ac9db NB |
1061 | struct se_portal_group *se_tpg = container_of(to_config_group(item), |
1062 | struct se_portal_group, tpg_group); | |
1063 | struct config_group *tpg_cg = &se_tpg->tpg_group; | |
1064 | struct config_item *df_item; | |
1065 | int i; | |
1066 | /* | |
1067 | * Release default groups, but do not release tpg_cg->default_groups | |
1068 | * memory as it is statically allocated at se_tpg->tpg_default_groups. | |
1069 | */ | |
1070 | for (i = 0; tpg_cg->default_groups[i]; i++) { | |
1071 | df_item = &tpg_cg->default_groups[i]->cg_item; | |
1072 | tpg_cg->default_groups[i] = NULL; | |
1073 | config_item_put(df_item); | |
1074 | } | |
1075 | ||
1076 | config_item_put(item); | |
c66ac9db NB |
1077 | } |
1078 | ||
1f6fe7cb NB |
1079 | static void target_fabric_release_wwn(struct config_item *item) |
1080 | { | |
1081 | struct se_wwn *wwn = container_of(to_config_group(item), | |
1082 | struct se_wwn, wwn_group); | |
1083 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
1084 | ||
1085 | tf->tf_ops.fabric_drop_wwn(wwn); | |
1086 | } | |
1087 | ||
1088 | static struct configfs_item_operations target_fabric_tpg_item_ops = { | |
1089 | .release = target_fabric_release_wwn, | |
1090 | }; | |
1091 | ||
c66ac9db NB |
1092 | static struct configfs_group_operations target_fabric_tpg_group_ops = { |
1093 | .make_group = target_fabric_make_tpg, | |
1094 | .drop_item = target_fabric_drop_tpg, | |
1095 | }; | |
1096 | ||
1f6fe7cb NB |
1097 | TF_CIT_SETUP(tpg, &target_fabric_tpg_item_ops, &target_fabric_tpg_group_ops, |
1098 | NULL); | |
c66ac9db NB |
1099 | |
1100 | /* End of tfc_tpg_cit */ | |
1101 | ||
12d23384 NB |
1102 | /* Start of tfc_wwn_fabric_stats_cit */ |
1103 | /* | |
1104 | * This is used as a placeholder for struct se_wwn->fabric_stat_group | |
1105 | * to allow fabrics access to ->fabric_stat_group->default_groups[] | |
1106 | */ | |
1107 | TF_CIT_SETUP(wwn_fabric_stats, NULL, NULL, NULL); | |
1108 | ||
1109 | /* End of tfc_wwn_fabric_stats_cit */ | |
1110 | ||
c66ac9db NB |
1111 | /* Start of tfc_wwn_cit */ |
1112 | ||
1113 | static struct config_group *target_fabric_make_wwn( | |
1114 | struct config_group *group, | |
1115 | const char *name) | |
1116 | { | |
1117 | struct target_fabric_configfs *tf = container_of(group, | |
1118 | struct target_fabric_configfs, tf_group); | |
1119 | struct se_wwn *wwn; | |
1120 | ||
6708bb27 AG |
1121 | if (!tf->tf_ops.fabric_make_wwn) { |
1122 | pr_err("tf->tf_ops.fabric_make_wwn is NULL\n"); | |
c66ac9db NB |
1123 | return ERR_PTR(-ENOSYS); |
1124 | } | |
1125 | ||
1126 | wwn = tf->tf_ops.fabric_make_wwn(tf, group, name); | |
6708bb27 | 1127 | if (!wwn || IS_ERR(wwn)) |
c66ac9db NB |
1128 | return ERR_PTR(-EINVAL); |
1129 | ||
1130 | wwn->wwn_tf = tf; | |
12d23384 NB |
1131 | /* |
1132 | * Setup default groups from pre-allocated wwn->wwn_default_groups | |
1133 | */ | |
1134 | wwn->wwn_group.default_groups = wwn->wwn_default_groups; | |
1135 | wwn->wwn_group.default_groups[0] = &wwn->fabric_stat_group; | |
1136 | wwn->wwn_group.default_groups[1] = NULL; | |
1137 | ||
c66ac9db NB |
1138 | config_group_init_type_name(&wwn->wwn_group, name, |
1139 | &TF_CIT_TMPL(tf)->tfc_tpg_cit); | |
12d23384 NB |
1140 | config_group_init_type_name(&wwn->fabric_stat_group, "fabric_statistics", |
1141 | &TF_CIT_TMPL(tf)->tfc_wwn_fabric_stats_cit); | |
c66ac9db NB |
1142 | |
1143 | return &wwn->wwn_group; | |
1144 | } | |
1145 | ||
1146 | static void target_fabric_drop_wwn( | |
1147 | struct config_group *group, | |
1148 | struct config_item *item) | |
1149 | { | |
12d23384 NB |
1150 | struct se_wwn *wwn = container_of(to_config_group(item), |
1151 | struct se_wwn, wwn_group); | |
1152 | struct config_item *df_item; | |
1153 | struct config_group *cg = &wwn->wwn_group; | |
1154 | int i; | |
1155 | ||
1156 | for (i = 0; cg->default_groups[i]; i++) { | |
1157 | df_item = &cg->default_groups[i]->cg_item; | |
1158 | cg->default_groups[i] = NULL; | |
1159 | config_item_put(df_item); | |
1160 | } | |
1161 | ||
c66ac9db | 1162 | config_item_put(item); |
c66ac9db NB |
1163 | } |
1164 | ||
1165 | static struct configfs_group_operations target_fabric_wwn_group_ops = { | |
1166 | .make_group = target_fabric_make_wwn, | |
1167 | .drop_item = target_fabric_drop_wwn, | |
1168 | }; | |
1169 | /* | |
1170 | * For use with TF_WWN_ATTR() and TF_WWN_ATTR_RO() | |
1171 | */ | |
1172 | CONFIGFS_EATTR_OPS(target_fabric_wwn, target_fabric_configfs, tf_group); | |
1173 | ||
1174 | static struct configfs_item_operations target_fabric_wwn_item_ops = { | |
1175 | .show_attribute = target_fabric_wwn_attr_show, | |
1176 | .store_attribute = target_fabric_wwn_attr_store, | |
1177 | }; | |
1178 | ||
1179 | TF_CIT_SETUP(wwn, &target_fabric_wwn_item_ops, &target_fabric_wwn_group_ops, NULL); | |
1180 | ||
1181 | /* End of tfc_wwn_cit */ | |
1182 | ||
1183 | /* Start of tfc_discovery_cit */ | |
1184 | ||
1185 | CONFIGFS_EATTR_OPS(target_fabric_discovery, target_fabric_configfs, | |
1186 | tf_disc_group); | |
1187 | ||
1188 | static struct configfs_item_operations target_fabric_discovery_item_ops = { | |
1189 | .show_attribute = target_fabric_discovery_attr_show, | |
1190 | .store_attribute = target_fabric_discovery_attr_store, | |
1191 | }; | |
1192 | ||
1193 | TF_CIT_SETUP(discovery, &target_fabric_discovery_item_ops, NULL, NULL); | |
1194 | ||
1195 | /* End of tfc_discovery_cit */ | |
1196 | ||
1197 | int target_fabric_setup_cits(struct target_fabric_configfs *tf) | |
1198 | { | |
1199 | target_fabric_setup_discovery_cit(tf); | |
1200 | target_fabric_setup_wwn_cit(tf); | |
12d23384 | 1201 | target_fabric_setup_wwn_fabric_stats_cit(tf); |
c66ac9db NB |
1202 | target_fabric_setup_tpg_cit(tf); |
1203 | target_fabric_setup_tpg_base_cit(tf); | |
1204 | target_fabric_setup_tpg_port_cit(tf); | |
12d23384 | 1205 | target_fabric_setup_tpg_port_stat_cit(tf); |
c66ac9db NB |
1206 | target_fabric_setup_tpg_lun_cit(tf); |
1207 | target_fabric_setup_tpg_np_cit(tf); | |
1208 | target_fabric_setup_tpg_np_base_cit(tf); | |
1209 | target_fabric_setup_tpg_attrib_cit(tf); | |
1210 | target_fabric_setup_tpg_param_cit(tf); | |
1211 | target_fabric_setup_tpg_nacl_cit(tf); | |
1212 | target_fabric_setup_tpg_nacl_base_cit(tf); | |
1213 | target_fabric_setup_tpg_nacl_attrib_cit(tf); | |
1214 | target_fabric_setup_tpg_nacl_auth_cit(tf); | |
1215 | target_fabric_setup_tpg_nacl_param_cit(tf); | |
12d23384 | 1216 | target_fabric_setup_tpg_nacl_stat_cit(tf); |
c66ac9db | 1217 | target_fabric_setup_tpg_mappedlun_cit(tf); |
12d23384 | 1218 | target_fabric_setup_tpg_mappedlun_stat_cit(tf); |
c66ac9db NB |
1219 | |
1220 | return 0; | |
1221 | } |