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c66ac9db NB |
1 | /******************************************************************************* |
2 | * Filename: target_core_fabric_configfs.c | |
3 | * | |
4 | * This file contains generic fabric module configfs infrastructure for | |
5 | * TCM v4.x code | |
6 | * | |
4c76251e | 7 | * (c) Copyright 2010-2013 Datera, Inc. |
c66ac9db | 8 | * |
fd9a11d7 | 9 | * Nicholas A. Bellinger <nab@linux-iscsi.org> |
c66ac9db NB |
10 | * |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or | |
14 | * (at your option) any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | ****************************************************************************/ | |
21 | ||
22 | #include <linux/module.h> | |
23 | #include <linux/moduleparam.h> | |
c66ac9db NB |
24 | #include <linux/utsname.h> |
25 | #include <linux/init.h> | |
26 | #include <linux/fs.h> | |
27 | #include <linux/namei.h> | |
28 | #include <linux/slab.h> | |
29 | #include <linux/types.h> | |
30 | #include <linux/delay.h> | |
31 | #include <linux/unistd.h> | |
32 | #include <linux/string.h> | |
33 | #include <linux/syscalls.h> | |
34 | #include <linux/configfs.h> | |
35 | ||
36 | #include <target/target_core_base.h> | |
c4795fb2 | 37 | #include <target/target_core_fabric.h> |
c66ac9db NB |
38 | #include <target/target_core_fabric_configfs.h> |
39 | #include <target/target_core_configfs.h> | |
40 | #include <target/configfs_macros.h> | |
41 | ||
e26d99ae | 42 | #include "target_core_internal.h" |
c66ac9db | 43 | #include "target_core_alua.h" |
c66ac9db NB |
44 | #include "target_core_pr.h" |
45 | ||
46 | #define TF_CIT_SETUP(_name, _item_ops, _group_ops, _attrs) \ | |
47 | static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf) \ | |
48 | { \ | |
49 | struct target_fabric_configfs_template *tfc = &tf->tf_cit_tmpl; \ | |
50 | struct config_item_type *cit = &tfc->tfc_##_name##_cit; \ | |
51 | \ | |
52 | cit->ct_item_ops = _item_ops; \ | |
53 | cit->ct_group_ops = _group_ops; \ | |
54 | cit->ct_attrs = _attrs; \ | |
55 | cit->ct_owner = tf->tf_module; \ | |
6708bb27 | 56 | pr_debug("Setup generic %s\n", __stringify(_name)); \ |
c66ac9db NB |
57 | } |
58 | ||
9ac8928e CH |
59 | #define TF_CIT_SETUP_DRV(_name, _item_ops, _group_ops) \ |
60 | static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf) \ | |
61 | { \ | |
62 | struct target_fabric_configfs_template *tfc = &tf->tf_cit_tmpl; \ | |
63 | struct config_item_type *cit = &tfc->tfc_##_name##_cit; \ | |
64 | struct configfs_attribute **attrs = tf->tf_ops.tfc_##_name##_attrs; \ | |
65 | \ | |
66 | cit->ct_item_ops = _item_ops; \ | |
67 | cit->ct_group_ops = _group_ops; \ | |
68 | cit->ct_attrs = attrs; \ | |
69 | cit->ct_owner = tf->tf_module; \ | |
70 | pr_debug("Setup generic %s\n", __stringify(_name)); \ | |
71 | } | |
72 | ||
c66ac9db NB |
73 | /* Start of tfc_tpg_mappedlun_cit */ |
74 | ||
75 | static int target_fabric_mappedlun_link( | |
76 | struct config_item *lun_acl_ci, | |
77 | struct config_item *lun_ci) | |
78 | { | |
79 | struct se_dev_entry *deve; | |
80 | struct se_lun *lun = container_of(to_config_group(lun_ci), | |
81 | struct se_lun, lun_group); | |
82 | struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci), | |
83 | struct se_lun_acl, se_lun_group); | |
84 | struct se_portal_group *se_tpg; | |
85 | struct config_item *nacl_ci, *tpg_ci, *tpg_ci_s, *wwn_ci, *wwn_ci_s; | |
86 | int ret = 0, lun_access; | |
0ff87549 NB |
87 | |
88 | if (lun->lun_link_magic != SE_LUN_LINK_MAGIC) { | |
89 | pr_err("Bad lun->lun_link_magic, not a valid lun_ci pointer:" | |
90 | " %p to struct lun: %p\n", lun_ci, lun); | |
91 | return -EFAULT; | |
92 | } | |
c66ac9db NB |
93 | /* |
94 | * Ensure that the source port exists | |
95 | */ | |
6708bb27 AG |
96 | if (!lun->lun_sep || !lun->lun_sep->sep_tpg) { |
97 | pr_err("Source se_lun->lun_sep or lun->lun_sep->sep" | |
c66ac9db NB |
98 | "_tpg does not exist\n"); |
99 | return -EINVAL; | |
100 | } | |
101 | se_tpg = lun->lun_sep->sep_tpg; | |
102 | ||
103 | nacl_ci = &lun_acl_ci->ci_parent->ci_group->cg_item; | |
104 | tpg_ci = &nacl_ci->ci_group->cg_item; | |
105 | wwn_ci = &tpg_ci->ci_group->cg_item; | |
106 | tpg_ci_s = &lun_ci->ci_parent->ci_group->cg_item; | |
107 | wwn_ci_s = &tpg_ci_s->ci_group->cg_item; | |
108 | /* | |
109 | * Make sure the SymLink is going to the same $FABRIC/$WWN/tpgt_$TPGT | |
110 | */ | |
111 | if (strcmp(config_item_name(wwn_ci), config_item_name(wwn_ci_s))) { | |
6708bb27 | 112 | pr_err("Illegal Initiator ACL SymLink outside of %s\n", |
c66ac9db NB |
113 | config_item_name(wwn_ci)); |
114 | return -EINVAL; | |
115 | } | |
116 | if (strcmp(config_item_name(tpg_ci), config_item_name(tpg_ci_s))) { | |
6708bb27 | 117 | pr_err("Illegal Initiator ACL Symlink outside of %s" |
c66ac9db NB |
118 | " TPGT: %s\n", config_item_name(wwn_ci), |
119 | config_item_name(tpg_ci)); | |
120 | return -EINVAL; | |
121 | } | |
122 | /* | |
123 | * If this struct se_node_acl was dynamically generated with | |
124 | * tpg_1/attrib/generate_node_acls=1, use the existing deve->lun_flags, | |
125 | * which be will write protected (READ-ONLY) when | |
126 | * tpg_1/attrib/demo_mode_write_protect=1 | |
127 | */ | |
128 | spin_lock_irq(&lacl->se_lun_nacl->device_list_lock); | |
f2083241 | 129 | deve = lacl->se_lun_nacl->device_list[lacl->mapped_lun]; |
c66ac9db NB |
130 | if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) |
131 | lun_access = deve->lun_flags; | |
132 | else | |
133 | lun_access = | |
e3d6f909 | 134 | (se_tpg->se_tpg_tfo->tpg_check_prod_mode_write_protect( |
c66ac9db NB |
135 | se_tpg)) ? TRANSPORT_LUNFLAGS_READ_ONLY : |
136 | TRANSPORT_LUNFLAGS_READ_WRITE; | |
137 | spin_unlock_irq(&lacl->se_lun_nacl->device_list_lock); | |
138 | /* | |
139 | * Determine the actual mapped LUN value user wants.. | |
140 | * | |
141 | * This value is what the SCSI Initiator actually sees the | |
142 | * iscsi/$IQN/$TPGT/lun/lun_* as on their SCSI Initiator Ports. | |
143 | */ | |
144 | ret = core_dev_add_initiator_node_lun_acl(se_tpg, lacl, | |
145 | lun->unpacked_lun, lun_access); | |
146 | ||
147 | return (ret < 0) ? -EINVAL : 0; | |
148 | } | |
149 | ||
150 | static int target_fabric_mappedlun_unlink( | |
151 | struct config_item *lun_acl_ci, | |
152 | struct config_item *lun_ci) | |
153 | { | |
154 | struct se_lun *lun; | |
155 | struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci), | |
156 | struct se_lun_acl, se_lun_group); | |
157 | struct se_node_acl *nacl = lacl->se_lun_nacl; | |
f2083241 | 158 | struct se_dev_entry *deve = nacl->device_list[lacl->mapped_lun]; |
c66ac9db NB |
159 | struct se_portal_group *se_tpg; |
160 | /* | |
161 | * Determine if the underlying MappedLUN has already been released.. | |
162 | */ | |
6708bb27 | 163 | if (!deve->se_lun) |
c66ac9db NB |
164 | return 0; |
165 | ||
166 | lun = container_of(to_config_group(lun_ci), struct se_lun, lun_group); | |
167 | se_tpg = lun->lun_sep->sep_tpg; | |
168 | ||
169 | core_dev_del_initiator_node_lun_acl(se_tpg, lun, lacl); | |
170 | return 0; | |
171 | } | |
172 | ||
173 | CONFIGFS_EATTR_STRUCT(target_fabric_mappedlun, se_lun_acl); | |
174 | #define TCM_MAPPEDLUN_ATTR(_name, _mode) \ | |
175 | static struct target_fabric_mappedlun_attribute target_fabric_mappedlun_##_name = \ | |
176 | __CONFIGFS_EATTR(_name, _mode, \ | |
177 | target_fabric_mappedlun_show_##_name, \ | |
178 | target_fabric_mappedlun_store_##_name); | |
179 | ||
180 | static ssize_t target_fabric_mappedlun_show_write_protect( | |
181 | struct se_lun_acl *lacl, | |
182 | char *page) | |
183 | { | |
184 | struct se_node_acl *se_nacl = lacl->se_lun_nacl; | |
185 | struct se_dev_entry *deve; | |
186 | ssize_t len; | |
187 | ||
188 | spin_lock_irq(&se_nacl->device_list_lock); | |
f2083241 | 189 | deve = se_nacl->device_list[lacl->mapped_lun]; |
c66ac9db NB |
190 | len = sprintf(page, "%d\n", |
191 | (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY) ? | |
192 | 1 : 0); | |
193 | spin_unlock_irq(&se_nacl->device_list_lock); | |
194 | ||
195 | return len; | |
196 | } | |
197 | ||
198 | static ssize_t target_fabric_mappedlun_store_write_protect( | |
199 | struct se_lun_acl *lacl, | |
200 | const char *page, | |
201 | size_t count) | |
202 | { | |
203 | struct se_node_acl *se_nacl = lacl->se_lun_nacl; | |
204 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
205 | unsigned long op; | |
57103d7f | 206 | int ret; |
c66ac9db | 207 | |
57103d7f JH |
208 | ret = kstrtoul(page, 0, &op); |
209 | if (ret) | |
210 | return ret; | |
c66ac9db NB |
211 | |
212 | if ((op != 1) && (op != 0)) | |
213 | return -EINVAL; | |
214 | ||
215 | core_update_device_list_access(lacl->mapped_lun, (op) ? | |
216 | TRANSPORT_LUNFLAGS_READ_ONLY : | |
217 | TRANSPORT_LUNFLAGS_READ_WRITE, | |
218 | lacl->se_lun_nacl); | |
219 | ||
6708bb27 | 220 | pr_debug("%s_ConfigFS: Changed Initiator ACL: %s" |
c66ac9db | 221 | " Mapped LUN: %u Write Protect bit to %s\n", |
e3d6f909 | 222 | se_tpg->se_tpg_tfo->get_fabric_name(), |
c66ac9db NB |
223 | lacl->initiatorname, lacl->mapped_lun, (op) ? "ON" : "OFF"); |
224 | ||
225 | return count; | |
226 | ||
227 | } | |
228 | ||
229 | TCM_MAPPEDLUN_ATTR(write_protect, S_IRUGO | S_IWUSR); | |
230 | ||
231 | CONFIGFS_EATTR_OPS(target_fabric_mappedlun, se_lun_acl, se_lun_group); | |
232 | ||
1f6fe7cb NB |
233 | static void target_fabric_mappedlun_release(struct config_item *item) |
234 | { | |
235 | struct se_lun_acl *lacl = container_of(to_config_group(item), | |
236 | struct se_lun_acl, se_lun_group); | |
237 | struct se_portal_group *se_tpg = lacl->se_lun_nacl->se_tpg; | |
238 | ||
239 | core_dev_free_initiator_node_lun_acl(se_tpg, lacl); | |
240 | } | |
241 | ||
c66ac9db NB |
242 | static struct configfs_attribute *target_fabric_mappedlun_attrs[] = { |
243 | &target_fabric_mappedlun_write_protect.attr, | |
244 | NULL, | |
245 | }; | |
246 | ||
247 | static struct configfs_item_operations target_fabric_mappedlun_item_ops = { | |
1f6fe7cb | 248 | .release = target_fabric_mappedlun_release, |
c66ac9db NB |
249 | .show_attribute = target_fabric_mappedlun_attr_show, |
250 | .store_attribute = target_fabric_mappedlun_attr_store, | |
251 | .allow_link = target_fabric_mappedlun_link, | |
252 | .drop_link = target_fabric_mappedlun_unlink, | |
253 | }; | |
254 | ||
255 | TF_CIT_SETUP(tpg_mappedlun, &target_fabric_mappedlun_item_ops, NULL, | |
256 | target_fabric_mappedlun_attrs); | |
257 | ||
258 | /* End of tfc_tpg_mappedlun_cit */ | |
259 | ||
12d23384 NB |
260 | /* Start of tfc_tpg_mappedlun_port_cit */ |
261 | ||
262 | static struct config_group *target_core_mappedlun_stat_mkdir( | |
263 | struct config_group *group, | |
264 | const char *name) | |
265 | { | |
266 | return ERR_PTR(-ENOSYS); | |
267 | } | |
268 | ||
269 | static void target_core_mappedlun_stat_rmdir( | |
270 | struct config_group *group, | |
271 | struct config_item *item) | |
272 | { | |
273 | return; | |
274 | } | |
275 | ||
276 | static struct configfs_group_operations target_fabric_mappedlun_stat_group_ops = { | |
277 | .make_group = target_core_mappedlun_stat_mkdir, | |
278 | .drop_item = target_core_mappedlun_stat_rmdir, | |
279 | }; | |
280 | ||
281 | TF_CIT_SETUP(tpg_mappedlun_stat, NULL, &target_fabric_mappedlun_stat_group_ops, | |
282 | NULL); | |
283 | ||
284 | /* End of tfc_tpg_mappedlun_port_cit */ | |
285 | ||
c66ac9db NB |
286 | /* Start of tfc_tpg_nacl_attrib_cit */ |
287 | ||
288 | CONFIGFS_EATTR_OPS(target_fabric_nacl_attrib, se_node_acl, acl_attrib_group); | |
289 | ||
290 | static struct configfs_item_operations target_fabric_nacl_attrib_item_ops = { | |
291 | .show_attribute = target_fabric_nacl_attrib_attr_show, | |
292 | .store_attribute = target_fabric_nacl_attrib_attr_store, | |
293 | }; | |
294 | ||
9ac8928e | 295 | TF_CIT_SETUP_DRV(tpg_nacl_attrib, &target_fabric_nacl_attrib_item_ops, NULL); |
c66ac9db NB |
296 | |
297 | /* End of tfc_tpg_nacl_attrib_cit */ | |
298 | ||
299 | /* Start of tfc_tpg_nacl_auth_cit */ | |
300 | ||
301 | CONFIGFS_EATTR_OPS(target_fabric_nacl_auth, se_node_acl, acl_auth_group); | |
302 | ||
303 | static struct configfs_item_operations target_fabric_nacl_auth_item_ops = { | |
304 | .show_attribute = target_fabric_nacl_auth_attr_show, | |
305 | .store_attribute = target_fabric_nacl_auth_attr_store, | |
306 | }; | |
307 | ||
9ac8928e | 308 | TF_CIT_SETUP_DRV(tpg_nacl_auth, &target_fabric_nacl_auth_item_ops, NULL); |
c66ac9db NB |
309 | |
310 | /* End of tfc_tpg_nacl_auth_cit */ | |
311 | ||
312 | /* Start of tfc_tpg_nacl_param_cit */ | |
313 | ||
314 | CONFIGFS_EATTR_OPS(target_fabric_nacl_param, se_node_acl, acl_param_group); | |
315 | ||
316 | static struct configfs_item_operations target_fabric_nacl_param_item_ops = { | |
317 | .show_attribute = target_fabric_nacl_param_attr_show, | |
318 | .store_attribute = target_fabric_nacl_param_attr_store, | |
319 | }; | |
320 | ||
9ac8928e | 321 | TF_CIT_SETUP_DRV(tpg_nacl_param, &target_fabric_nacl_param_item_ops, NULL); |
c66ac9db NB |
322 | |
323 | /* End of tfc_tpg_nacl_param_cit */ | |
324 | ||
325 | /* Start of tfc_tpg_nacl_base_cit */ | |
326 | ||
327 | CONFIGFS_EATTR_OPS(target_fabric_nacl_base, se_node_acl, acl_group); | |
328 | ||
329 | static struct config_group *target_fabric_make_mappedlun( | |
330 | struct config_group *group, | |
331 | const char *name) | |
332 | { | |
333 | struct se_node_acl *se_nacl = container_of(group, | |
334 | struct se_node_acl, acl_group); | |
335 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
336 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
da0abaee | 337 | struct se_lun_acl *lacl = NULL; |
c66ac9db | 338 | struct config_item *acl_ci; |
12d23384 | 339 | struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; |
c66ac9db NB |
340 | char *buf; |
341 | unsigned long mapped_lun; | |
342 | int ret = 0; | |
343 | ||
344 | acl_ci = &group->cg_item; | |
6708bb27 AG |
345 | if (!acl_ci) { |
346 | pr_err("Unable to locatel acl_ci\n"); | |
c66ac9db NB |
347 | return NULL; |
348 | } | |
349 | ||
350 | buf = kzalloc(strlen(name) + 1, GFP_KERNEL); | |
6708bb27 AG |
351 | if (!buf) { |
352 | pr_err("Unable to allocate memory for name buf\n"); | |
c66ac9db NB |
353 | return ERR_PTR(-ENOMEM); |
354 | } | |
355 | snprintf(buf, strlen(name) + 1, "%s", name); | |
356 | /* | |
357 | * Make sure user is creating iscsi/$IQN/$TPGT/acls/$INITIATOR/lun_$ID. | |
358 | */ | |
359 | if (strstr(buf, "lun_") != buf) { | |
6708bb27 | 360 | pr_err("Unable to locate \"lun_\" from buf: %s" |
c66ac9db NB |
361 | " name: %s\n", buf, name); |
362 | ret = -EINVAL; | |
363 | goto out; | |
364 | } | |
365 | /* | |
366 | * Determine the Mapped LUN value. This is what the SCSI Initiator | |
367 | * Port will actually see. | |
368 | */ | |
57103d7f JH |
369 | ret = kstrtoul(buf + 4, 0, &mapped_lun); |
370 | if (ret) | |
371 | goto out; | |
372 | if (mapped_lun > UINT_MAX) { | |
c66ac9db NB |
373 | ret = -EINVAL; |
374 | goto out; | |
375 | } | |
fbbf8555 NB |
376 | if (mapped_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) { |
377 | pr_err("Mapped LUN: %lu exceeds TRANSPORT_MAX_LUNS_PER_TPG" | |
378 | "-1: %u for Target Portal Group: %u\n", mapped_lun, | |
379 | TRANSPORT_MAX_LUNS_PER_TPG-1, | |
380 | se_tpg->se_tpg_tfo->tpg_get_tag(se_tpg)); | |
381 | ret = -EINVAL; | |
382 | goto out; | |
383 | } | |
c66ac9db | 384 | |
fcf29481 NB |
385 | lacl = core_dev_init_initiator_node_lun_acl(se_tpg, se_nacl, |
386 | mapped_lun, &ret); | |
6708bb27 | 387 | if (!lacl) { |
12d23384 | 388 | ret = -EINVAL; |
c66ac9db | 389 | goto out; |
12d23384 NB |
390 | } |
391 | ||
392 | lacl_cg = &lacl->se_lun_group; | |
13f6a914 | 393 | lacl_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, |
12d23384 NB |
394 | GFP_KERNEL); |
395 | if (!lacl_cg->default_groups) { | |
6708bb27 | 396 | pr_err("Unable to allocate lacl_cg->default_groups\n"); |
12d23384 NB |
397 | ret = -ENOMEM; |
398 | goto out; | |
399 | } | |
c66ac9db NB |
400 | |
401 | config_group_init_type_name(&lacl->se_lun_group, name, | |
d80e224d | 402 | &tf->tf_cit_tmpl.tfc_tpg_mappedlun_cit); |
12d23384 | 403 | config_group_init_type_name(&lacl->ml_stat_grps.stat_group, |
d80e224d | 404 | "statistics", &tf->tf_cit_tmpl.tfc_tpg_mappedlun_stat_cit); |
12d23384 NB |
405 | lacl_cg->default_groups[0] = &lacl->ml_stat_grps.stat_group; |
406 | lacl_cg->default_groups[1] = NULL; | |
407 | ||
e3d6f909 | 408 | ml_stat_grp = &lacl->ml_stat_grps.stat_group; |
13f6a914 | 409 | ml_stat_grp->default_groups = kmalloc(sizeof(struct config_group *) * 3, |
12d23384 NB |
410 | GFP_KERNEL); |
411 | if (!ml_stat_grp->default_groups) { | |
6708bb27 | 412 | pr_err("Unable to allocate ml_stat_grp->default_groups\n"); |
12d23384 NB |
413 | ret = -ENOMEM; |
414 | goto out; | |
415 | } | |
416 | target_stat_setup_mappedlun_default_groups(lacl); | |
c66ac9db NB |
417 | |
418 | kfree(buf); | |
419 | return &lacl->se_lun_group; | |
420 | out: | |
12d23384 NB |
421 | if (lacl_cg) |
422 | kfree(lacl_cg->default_groups); | |
da0abaee | 423 | kfree(lacl); |
c66ac9db NB |
424 | kfree(buf); |
425 | return ERR_PTR(ret); | |
426 | } | |
427 | ||
428 | static void target_fabric_drop_mappedlun( | |
429 | struct config_group *group, | |
430 | struct config_item *item) | |
431 | { | |
12d23384 NB |
432 | struct se_lun_acl *lacl = container_of(to_config_group(item), |
433 | struct se_lun_acl, se_lun_group); | |
434 | struct config_item *df_item; | |
435 | struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; | |
436 | int i; | |
437 | ||
e3d6f909 | 438 | ml_stat_grp = &lacl->ml_stat_grps.stat_group; |
12d23384 NB |
439 | for (i = 0; ml_stat_grp->default_groups[i]; i++) { |
440 | df_item = &ml_stat_grp->default_groups[i]->cg_item; | |
441 | ml_stat_grp->default_groups[i] = NULL; | |
442 | config_item_put(df_item); | |
443 | } | |
444 | kfree(ml_stat_grp->default_groups); | |
445 | ||
446 | lacl_cg = &lacl->se_lun_group; | |
447 | for (i = 0; lacl_cg->default_groups[i]; i++) { | |
448 | df_item = &lacl_cg->default_groups[i]->cg_item; | |
449 | lacl_cg->default_groups[i] = NULL; | |
450 | config_item_put(df_item); | |
451 | } | |
452 | kfree(lacl_cg->default_groups); | |
453 | ||
c66ac9db | 454 | config_item_put(item); |
1f6fe7cb NB |
455 | } |
456 | ||
457 | static void target_fabric_nacl_base_release(struct config_item *item) | |
458 | { | |
459 | struct se_node_acl *se_nacl = container_of(to_config_group(item), | |
460 | struct se_node_acl, acl_group); | |
461 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
462 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
463 | ||
464 | tf->tf_ops.fabric_drop_nodeacl(se_nacl); | |
c66ac9db NB |
465 | } |
466 | ||
467 | static struct configfs_item_operations target_fabric_nacl_base_item_ops = { | |
1f6fe7cb | 468 | .release = target_fabric_nacl_base_release, |
c66ac9db NB |
469 | .show_attribute = target_fabric_nacl_base_attr_show, |
470 | .store_attribute = target_fabric_nacl_base_attr_store, | |
471 | }; | |
472 | ||
473 | static struct configfs_group_operations target_fabric_nacl_base_group_ops = { | |
474 | .make_group = target_fabric_make_mappedlun, | |
475 | .drop_item = target_fabric_drop_mappedlun, | |
476 | }; | |
477 | ||
9ac8928e CH |
478 | TF_CIT_SETUP_DRV(tpg_nacl_base, &target_fabric_nacl_base_item_ops, |
479 | &target_fabric_nacl_base_group_ops); | |
c66ac9db NB |
480 | |
481 | /* End of tfc_tpg_nacl_base_cit */ | |
482 | ||
12d23384 NB |
483 | /* Start of tfc_node_fabric_stats_cit */ |
484 | /* | |
485 | * This is used as a placeholder for struct se_node_acl->acl_fabric_stat_group | |
486 | * to allow fabrics access to ->acl_fabric_stat_group->default_groups[] | |
487 | */ | |
488 | TF_CIT_SETUP(tpg_nacl_stat, NULL, NULL, NULL); | |
489 | ||
490 | /* End of tfc_wwn_fabric_stats_cit */ | |
491 | ||
c66ac9db NB |
492 | /* Start of tfc_tpg_nacl_cit */ |
493 | ||
494 | static struct config_group *target_fabric_make_nodeacl( | |
495 | struct config_group *group, | |
496 | const char *name) | |
497 | { | |
498 | struct se_portal_group *se_tpg = container_of(group, | |
499 | struct se_portal_group, tpg_acl_group); | |
500 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
501 | struct se_node_acl *se_nacl; | |
502 | struct config_group *nacl_cg; | |
503 | ||
6708bb27 AG |
504 | if (!tf->tf_ops.fabric_make_nodeacl) { |
505 | pr_err("tf->tf_ops.fabric_make_nodeacl is NULL\n"); | |
c66ac9db NB |
506 | return ERR_PTR(-ENOSYS); |
507 | } | |
508 | ||
509 | se_nacl = tf->tf_ops.fabric_make_nodeacl(se_tpg, group, name); | |
510 | if (IS_ERR(se_nacl)) | |
e1750ba2 | 511 | return ERR_CAST(se_nacl); |
c66ac9db NB |
512 | |
513 | nacl_cg = &se_nacl->acl_group; | |
514 | nacl_cg->default_groups = se_nacl->acl_default_groups; | |
515 | nacl_cg->default_groups[0] = &se_nacl->acl_attrib_group; | |
516 | nacl_cg->default_groups[1] = &se_nacl->acl_auth_group; | |
517 | nacl_cg->default_groups[2] = &se_nacl->acl_param_group; | |
12d23384 NB |
518 | nacl_cg->default_groups[3] = &se_nacl->acl_fabric_stat_group; |
519 | nacl_cg->default_groups[4] = NULL; | |
c66ac9db NB |
520 | |
521 | config_group_init_type_name(&se_nacl->acl_group, name, | |
d80e224d | 522 | &tf->tf_cit_tmpl.tfc_tpg_nacl_base_cit); |
c66ac9db | 523 | config_group_init_type_name(&se_nacl->acl_attrib_group, "attrib", |
d80e224d | 524 | &tf->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit); |
c66ac9db | 525 | config_group_init_type_name(&se_nacl->acl_auth_group, "auth", |
d80e224d | 526 | &tf->tf_cit_tmpl.tfc_tpg_nacl_auth_cit); |
c66ac9db | 527 | config_group_init_type_name(&se_nacl->acl_param_group, "param", |
d80e224d | 528 | &tf->tf_cit_tmpl.tfc_tpg_nacl_param_cit); |
12d23384 NB |
529 | config_group_init_type_name(&se_nacl->acl_fabric_stat_group, |
530 | "fabric_statistics", | |
d80e224d | 531 | &tf->tf_cit_tmpl.tfc_tpg_nacl_stat_cit); |
c66ac9db NB |
532 | |
533 | return &se_nacl->acl_group; | |
534 | } | |
535 | ||
536 | static void target_fabric_drop_nodeacl( | |
537 | struct config_group *group, | |
538 | struct config_item *item) | |
539 | { | |
c66ac9db NB |
540 | struct se_node_acl *se_nacl = container_of(to_config_group(item), |
541 | struct se_node_acl, acl_group); | |
542 | struct config_item *df_item; | |
543 | struct config_group *nacl_cg; | |
544 | int i; | |
545 | ||
546 | nacl_cg = &se_nacl->acl_group; | |
547 | for (i = 0; nacl_cg->default_groups[i]; i++) { | |
548 | df_item = &nacl_cg->default_groups[i]->cg_item; | |
549 | nacl_cg->default_groups[i] = NULL; | |
550 | config_item_put(df_item); | |
551 | } | |
1f6fe7cb NB |
552 | /* |
553 | * struct se_node_acl free is done in target_fabric_nacl_base_release() | |
554 | */ | |
c66ac9db | 555 | config_item_put(item); |
c66ac9db NB |
556 | } |
557 | ||
558 | static struct configfs_group_operations target_fabric_nacl_group_ops = { | |
559 | .make_group = target_fabric_make_nodeacl, | |
560 | .drop_item = target_fabric_drop_nodeacl, | |
561 | }; | |
562 | ||
563 | TF_CIT_SETUP(tpg_nacl, NULL, &target_fabric_nacl_group_ops, NULL); | |
564 | ||
565 | /* End of tfc_tpg_nacl_cit */ | |
566 | ||
567 | /* Start of tfc_tpg_np_base_cit */ | |
568 | ||
569 | CONFIGFS_EATTR_OPS(target_fabric_np_base, se_tpg_np, tpg_np_group); | |
570 | ||
1f6fe7cb NB |
571 | static void target_fabric_np_base_release(struct config_item *item) |
572 | { | |
573 | struct se_tpg_np *se_tpg_np = container_of(to_config_group(item), | |
574 | struct se_tpg_np, tpg_np_group); | |
575 | struct se_portal_group *se_tpg = se_tpg_np->tpg_np_parent; | |
576 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
577 | ||
578 | tf->tf_ops.fabric_drop_np(se_tpg_np); | |
579 | } | |
580 | ||
c66ac9db | 581 | static struct configfs_item_operations target_fabric_np_base_item_ops = { |
1f6fe7cb | 582 | .release = target_fabric_np_base_release, |
c66ac9db NB |
583 | .show_attribute = target_fabric_np_base_attr_show, |
584 | .store_attribute = target_fabric_np_base_attr_store, | |
585 | }; | |
586 | ||
9ac8928e | 587 | TF_CIT_SETUP_DRV(tpg_np_base, &target_fabric_np_base_item_ops, NULL); |
c66ac9db NB |
588 | |
589 | /* End of tfc_tpg_np_base_cit */ | |
590 | ||
591 | /* Start of tfc_tpg_np_cit */ | |
592 | ||
593 | static struct config_group *target_fabric_make_np( | |
594 | struct config_group *group, | |
595 | const char *name) | |
596 | { | |
597 | struct se_portal_group *se_tpg = container_of(group, | |
598 | struct se_portal_group, tpg_np_group); | |
599 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
600 | struct se_tpg_np *se_tpg_np; | |
601 | ||
6708bb27 AG |
602 | if (!tf->tf_ops.fabric_make_np) { |
603 | pr_err("tf->tf_ops.fabric_make_np is NULL\n"); | |
c66ac9db NB |
604 | return ERR_PTR(-ENOSYS); |
605 | } | |
606 | ||
607 | se_tpg_np = tf->tf_ops.fabric_make_np(se_tpg, group, name); | |
6708bb27 | 608 | if (!se_tpg_np || IS_ERR(se_tpg_np)) |
c66ac9db NB |
609 | return ERR_PTR(-EINVAL); |
610 | ||
1f6fe7cb | 611 | se_tpg_np->tpg_np_parent = se_tpg; |
c66ac9db | 612 | config_group_init_type_name(&se_tpg_np->tpg_np_group, name, |
d80e224d | 613 | &tf->tf_cit_tmpl.tfc_tpg_np_base_cit); |
c66ac9db NB |
614 | |
615 | return &se_tpg_np->tpg_np_group; | |
616 | } | |
617 | ||
618 | static void target_fabric_drop_np( | |
619 | struct config_group *group, | |
620 | struct config_item *item) | |
621 | { | |
1f6fe7cb NB |
622 | /* |
623 | * struct se_tpg_np is released via target_fabric_np_base_release() | |
624 | */ | |
c66ac9db | 625 | config_item_put(item); |
c66ac9db NB |
626 | } |
627 | ||
628 | static struct configfs_group_operations target_fabric_np_group_ops = { | |
629 | .make_group = &target_fabric_make_np, | |
630 | .drop_item = &target_fabric_drop_np, | |
631 | }; | |
632 | ||
633 | TF_CIT_SETUP(tpg_np, NULL, &target_fabric_np_group_ops, NULL); | |
634 | ||
635 | /* End of tfc_tpg_np_cit */ | |
636 | ||
637 | /* Start of tfc_tpg_port_cit */ | |
638 | ||
639 | CONFIGFS_EATTR_STRUCT(target_fabric_port, se_lun); | |
640 | #define TCM_PORT_ATTR(_name, _mode) \ | |
641 | static struct target_fabric_port_attribute target_fabric_port_##_name = \ | |
642 | __CONFIGFS_EATTR(_name, _mode, \ | |
643 | target_fabric_port_show_attr_##_name, \ | |
644 | target_fabric_port_store_attr_##_name); | |
645 | ||
646 | #define TCM_PORT_ATTOR_RO(_name) \ | |
647 | __CONFIGFS_EATTR_RO(_name, \ | |
648 | target_fabric_port_show_attr_##_name); | |
649 | ||
650 | /* | |
651 | * alua_tg_pt_gp | |
652 | */ | |
653 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_gp( | |
654 | struct se_lun *lun, | |
655 | char *page) | |
656 | { | |
6708bb27 | 657 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
658 | return -ENODEV; |
659 | ||
660 | return core_alua_show_tg_pt_gp_info(lun->lun_sep, page); | |
661 | } | |
662 | ||
663 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_gp( | |
664 | struct se_lun *lun, | |
665 | const char *page, | |
666 | size_t count) | |
667 | { | |
6708bb27 | 668 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
669 | return -ENODEV; |
670 | ||
671 | return core_alua_store_tg_pt_gp_info(lun->lun_sep, page, count); | |
672 | } | |
673 | ||
674 | TCM_PORT_ATTR(alua_tg_pt_gp, S_IRUGO | S_IWUSR); | |
675 | ||
676 | /* | |
677 | * alua_tg_pt_offline | |
678 | */ | |
679 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_offline( | |
680 | struct se_lun *lun, | |
681 | char *page) | |
682 | { | |
6708bb27 | 683 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
684 | return -ENODEV; |
685 | ||
686 | return core_alua_show_offline_bit(lun, page); | |
687 | } | |
688 | ||
689 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_offline( | |
690 | struct se_lun *lun, | |
691 | const char *page, | |
692 | size_t count) | |
693 | { | |
6708bb27 | 694 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
695 | return -ENODEV; |
696 | ||
697 | return core_alua_store_offline_bit(lun, page, count); | |
698 | } | |
699 | ||
700 | TCM_PORT_ATTR(alua_tg_pt_offline, S_IRUGO | S_IWUSR); | |
701 | ||
702 | /* | |
703 | * alua_tg_pt_status | |
704 | */ | |
705 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_status( | |
706 | struct se_lun *lun, | |
707 | char *page) | |
708 | { | |
6708bb27 | 709 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
710 | return -ENODEV; |
711 | ||
712 | return core_alua_show_secondary_status(lun, page); | |
713 | } | |
714 | ||
715 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_status( | |
716 | struct se_lun *lun, | |
717 | const char *page, | |
718 | size_t count) | |
719 | { | |
6708bb27 | 720 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
721 | return -ENODEV; |
722 | ||
723 | return core_alua_store_secondary_status(lun, page, count); | |
724 | } | |
725 | ||
726 | TCM_PORT_ATTR(alua_tg_pt_status, S_IRUGO | S_IWUSR); | |
727 | ||
728 | /* | |
729 | * alua_tg_pt_write_md | |
730 | */ | |
731 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_write_md( | |
732 | struct se_lun *lun, | |
733 | char *page) | |
734 | { | |
6708bb27 | 735 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
736 | return -ENODEV; |
737 | ||
738 | return core_alua_show_secondary_write_metadata(lun, page); | |
739 | } | |
740 | ||
741 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_write_md( | |
742 | struct se_lun *lun, | |
743 | const char *page, | |
744 | size_t count) | |
745 | { | |
6708bb27 | 746 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
747 | return -ENODEV; |
748 | ||
749 | return core_alua_store_secondary_write_metadata(lun, page, count); | |
750 | } | |
751 | ||
752 | TCM_PORT_ATTR(alua_tg_pt_write_md, S_IRUGO | S_IWUSR); | |
753 | ||
754 | ||
755 | static struct configfs_attribute *target_fabric_port_attrs[] = { | |
756 | &target_fabric_port_alua_tg_pt_gp.attr, | |
757 | &target_fabric_port_alua_tg_pt_offline.attr, | |
758 | &target_fabric_port_alua_tg_pt_status.attr, | |
759 | &target_fabric_port_alua_tg_pt_write_md.attr, | |
760 | NULL, | |
761 | }; | |
762 | ||
763 | CONFIGFS_EATTR_OPS(target_fabric_port, se_lun, lun_group); | |
764 | ||
765 | static int target_fabric_port_link( | |
766 | struct config_item *lun_ci, | |
767 | struct config_item *se_dev_ci) | |
768 | { | |
769 | struct config_item *tpg_ci; | |
c66ac9db NB |
770 | struct se_lun *lun = container_of(to_config_group(lun_ci), |
771 | struct se_lun, lun_group); | |
772 | struct se_lun *lun_p; | |
773 | struct se_portal_group *se_tpg; | |
0fd97ccf CH |
774 | struct se_device *dev = |
775 | container_of(to_config_group(se_dev_ci), struct se_device, dev_group); | |
c66ac9db NB |
776 | struct target_fabric_configfs *tf; |
777 | int ret; | |
778 | ||
0ff87549 NB |
779 | if (dev->dev_link_magic != SE_DEV_LINK_MAGIC) { |
780 | pr_err("Bad dev->dev_link_magic, not a valid se_dev_ci pointer:" | |
781 | " %p to struct se_device: %p\n", se_dev_ci, dev); | |
782 | return -EFAULT; | |
783 | } | |
784 | ||
faa06ab9 NB |
785 | if (!(dev->dev_flags & DF_CONFIGURED)) { |
786 | pr_err("se_device not configured yet, cannot port link\n"); | |
787 | return -ENODEV; | |
788 | } | |
789 | ||
c66ac9db NB |
790 | tpg_ci = &lun_ci->ci_parent->ci_group->cg_item; |
791 | se_tpg = container_of(to_config_group(tpg_ci), | |
792 | struct se_portal_group, tpg_group); | |
793 | tf = se_tpg->se_tpg_wwn->wwn_tf; | |
794 | ||
795 | if (lun->lun_se_dev != NULL) { | |
6708bb27 | 796 | pr_err("Port Symlink already exists\n"); |
c66ac9db NB |
797 | return -EEXIST; |
798 | } | |
799 | ||
2dca673b | 800 | lun_p = core_dev_add_lun(se_tpg, dev, lun->unpacked_lun); |
8d9efe53 | 801 | if (IS_ERR(lun_p)) { |
6708bb27 | 802 | pr_err("core_dev_add_lun() failed\n"); |
8d9efe53 | 803 | ret = PTR_ERR(lun_p); |
c66ac9db NB |
804 | goto out; |
805 | } | |
806 | ||
807 | if (tf->tf_ops.fabric_post_link) { | |
808 | /* | |
809 | * Call the optional fabric_post_link() to allow a | |
810 | * fabric module to setup any additional state once | |
811 | * core_dev_add_lun() has been called.. | |
812 | */ | |
813 | tf->tf_ops.fabric_post_link(se_tpg, lun); | |
814 | } | |
815 | ||
816 | return 0; | |
817 | out: | |
818 | return ret; | |
819 | } | |
820 | ||
821 | static int target_fabric_port_unlink( | |
822 | struct config_item *lun_ci, | |
823 | struct config_item *se_dev_ci) | |
824 | { | |
825 | struct se_lun *lun = container_of(to_config_group(lun_ci), | |
826 | struct se_lun, lun_group); | |
827 | struct se_portal_group *se_tpg = lun->lun_sep->sep_tpg; | |
828 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
829 | ||
830 | if (tf->tf_ops.fabric_pre_unlink) { | |
831 | /* | |
832 | * Call the optional fabric_pre_unlink() to allow a | |
833 | * fabric module to release any additional stat before | |
834 | * core_dev_del_lun() is called. | |
835 | */ | |
836 | tf->tf_ops.fabric_pre_unlink(se_tpg, lun); | |
837 | } | |
838 | ||
cd9d7cba | 839 | core_dev_del_lun(se_tpg, lun); |
c66ac9db NB |
840 | return 0; |
841 | } | |
842 | ||
843 | static struct configfs_item_operations target_fabric_port_item_ops = { | |
844 | .show_attribute = target_fabric_port_attr_show, | |
845 | .store_attribute = target_fabric_port_attr_store, | |
846 | .allow_link = target_fabric_port_link, | |
847 | .drop_link = target_fabric_port_unlink, | |
848 | }; | |
849 | ||
850 | TF_CIT_SETUP(tpg_port, &target_fabric_port_item_ops, NULL, target_fabric_port_attrs); | |
851 | ||
852 | /* End of tfc_tpg_port_cit */ | |
853 | ||
12d23384 NB |
854 | /* Start of tfc_tpg_port_stat_cit */ |
855 | ||
856 | static struct config_group *target_core_port_stat_mkdir( | |
857 | struct config_group *group, | |
858 | const char *name) | |
859 | { | |
860 | return ERR_PTR(-ENOSYS); | |
861 | } | |
862 | ||
863 | static void target_core_port_stat_rmdir( | |
864 | struct config_group *group, | |
865 | struct config_item *item) | |
866 | { | |
867 | return; | |
868 | } | |
869 | ||
870 | static struct configfs_group_operations target_fabric_port_stat_group_ops = { | |
871 | .make_group = target_core_port_stat_mkdir, | |
872 | .drop_item = target_core_port_stat_rmdir, | |
873 | }; | |
874 | ||
875 | TF_CIT_SETUP(tpg_port_stat, NULL, &target_fabric_port_stat_group_ops, NULL); | |
876 | ||
877 | /* End of tfc_tpg_port_stat_cit */ | |
878 | ||
c66ac9db NB |
879 | /* Start of tfc_tpg_lun_cit */ |
880 | ||
881 | static struct config_group *target_fabric_make_lun( | |
882 | struct config_group *group, | |
883 | const char *name) | |
884 | { | |
885 | struct se_lun *lun; | |
886 | struct se_portal_group *se_tpg = container_of(group, | |
887 | struct se_portal_group, tpg_lun_group); | |
888 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
12d23384 | 889 | struct config_group *lun_cg = NULL, *port_stat_grp = NULL; |
c66ac9db | 890 | unsigned long unpacked_lun; |
12d23384 | 891 | int errno; |
c66ac9db NB |
892 | |
893 | if (strstr(name, "lun_") != name) { | |
6708bb27 | 894 | pr_err("Unable to locate \'_\" in" |
c66ac9db NB |
895 | " \"lun_$LUN_NUMBER\"\n"); |
896 | return ERR_PTR(-EINVAL); | |
897 | } | |
57103d7f JH |
898 | errno = kstrtoul(name + 4, 0, &unpacked_lun); |
899 | if (errno) | |
900 | return ERR_PTR(errno); | |
901 | if (unpacked_lun > UINT_MAX) | |
c66ac9db NB |
902 | return ERR_PTR(-EINVAL); |
903 | ||
904 | lun = core_get_lun_from_tpg(se_tpg, unpacked_lun); | |
6708bb27 | 905 | if (!lun) |
c66ac9db NB |
906 | return ERR_PTR(-EINVAL); |
907 | ||
12d23384 | 908 | lun_cg = &lun->lun_group; |
13f6a914 | 909 | lun_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, |
12d23384 NB |
910 | GFP_KERNEL); |
911 | if (!lun_cg->default_groups) { | |
6708bb27 | 912 | pr_err("Unable to allocate lun_cg->default_groups\n"); |
12d23384 NB |
913 | return ERR_PTR(-ENOMEM); |
914 | } | |
915 | ||
c66ac9db | 916 | config_group_init_type_name(&lun->lun_group, name, |
d80e224d | 917 | &tf->tf_cit_tmpl.tfc_tpg_port_cit); |
12d23384 | 918 | config_group_init_type_name(&lun->port_stat_grps.stat_group, |
d80e224d | 919 | "statistics", &tf->tf_cit_tmpl.tfc_tpg_port_stat_cit); |
12d23384 NB |
920 | lun_cg->default_groups[0] = &lun->port_stat_grps.stat_group; |
921 | lun_cg->default_groups[1] = NULL; | |
922 | ||
e3d6f909 | 923 | port_stat_grp = &lun->port_stat_grps.stat_group; |
ab6dae82 | 924 | port_stat_grp->default_groups = kzalloc(sizeof(struct config_group *) * 4, |
12d23384 NB |
925 | GFP_KERNEL); |
926 | if (!port_stat_grp->default_groups) { | |
6708bb27 | 927 | pr_err("Unable to allocate port_stat_grp->default_groups\n"); |
1481473b JE |
928 | kfree(lun_cg->default_groups); |
929 | return ERR_PTR(-ENOMEM); | |
12d23384 NB |
930 | } |
931 | target_stat_setup_port_default_groups(lun); | |
c66ac9db NB |
932 | |
933 | return &lun->lun_group; | |
934 | } | |
935 | ||
936 | static void target_fabric_drop_lun( | |
937 | struct config_group *group, | |
938 | struct config_item *item) | |
939 | { | |
12d23384 NB |
940 | struct se_lun *lun = container_of(to_config_group(item), |
941 | struct se_lun, lun_group); | |
942 | struct config_item *df_item; | |
943 | struct config_group *lun_cg, *port_stat_grp; | |
944 | int i; | |
945 | ||
e3d6f909 | 946 | port_stat_grp = &lun->port_stat_grps.stat_group; |
12d23384 NB |
947 | for (i = 0; port_stat_grp->default_groups[i]; i++) { |
948 | df_item = &port_stat_grp->default_groups[i]->cg_item; | |
949 | port_stat_grp->default_groups[i] = NULL; | |
950 | config_item_put(df_item); | |
951 | } | |
952 | kfree(port_stat_grp->default_groups); | |
953 | ||
954 | lun_cg = &lun->lun_group; | |
955 | for (i = 0; lun_cg->default_groups[i]; i++) { | |
956 | df_item = &lun_cg->default_groups[i]->cg_item; | |
957 | lun_cg->default_groups[i] = NULL; | |
958 | config_item_put(df_item); | |
959 | } | |
960 | kfree(lun_cg->default_groups); | |
961 | ||
c66ac9db NB |
962 | config_item_put(item); |
963 | } | |
964 | ||
965 | static struct configfs_group_operations target_fabric_lun_group_ops = { | |
966 | .make_group = &target_fabric_make_lun, | |
967 | .drop_item = &target_fabric_drop_lun, | |
968 | }; | |
969 | ||
970 | TF_CIT_SETUP(tpg_lun, NULL, &target_fabric_lun_group_ops, NULL); | |
971 | ||
972 | /* End of tfc_tpg_lun_cit */ | |
973 | ||
974 | /* Start of tfc_tpg_attrib_cit */ | |
975 | ||
976 | CONFIGFS_EATTR_OPS(target_fabric_tpg_attrib, se_portal_group, tpg_attrib_group); | |
977 | ||
978 | static struct configfs_item_operations target_fabric_tpg_attrib_item_ops = { | |
979 | .show_attribute = target_fabric_tpg_attrib_attr_show, | |
980 | .store_attribute = target_fabric_tpg_attrib_attr_store, | |
981 | }; | |
982 | ||
9ac8928e | 983 | TF_CIT_SETUP_DRV(tpg_attrib, &target_fabric_tpg_attrib_item_ops, NULL); |
c66ac9db NB |
984 | |
985 | /* End of tfc_tpg_attrib_cit */ | |
986 | ||
e4b512e7 NB |
987 | /* Start of tfc_tpg_auth_cit */ |
988 | ||
989 | CONFIGFS_EATTR_OPS(target_fabric_tpg_auth, se_portal_group, tpg_auth_group); | |
990 | ||
991 | static struct configfs_item_operations target_fabric_tpg_auth_item_ops = { | |
992 | .show_attribute = target_fabric_tpg_auth_attr_show, | |
993 | .store_attribute = target_fabric_tpg_auth_attr_store, | |
994 | }; | |
995 | ||
9ac8928e | 996 | TF_CIT_SETUP_DRV(tpg_auth, &target_fabric_tpg_auth_item_ops, NULL); |
e4b512e7 NB |
997 | |
998 | /* End of tfc_tpg_attrib_cit */ | |
999 | ||
c66ac9db NB |
1000 | /* Start of tfc_tpg_param_cit */ |
1001 | ||
1002 | CONFIGFS_EATTR_OPS(target_fabric_tpg_param, se_portal_group, tpg_param_group); | |
1003 | ||
1004 | static struct configfs_item_operations target_fabric_tpg_param_item_ops = { | |
1005 | .show_attribute = target_fabric_tpg_param_attr_show, | |
1006 | .store_attribute = target_fabric_tpg_param_attr_store, | |
1007 | }; | |
1008 | ||
9ac8928e | 1009 | TF_CIT_SETUP_DRV(tpg_param, &target_fabric_tpg_param_item_ops, NULL); |
c66ac9db NB |
1010 | |
1011 | /* End of tfc_tpg_param_cit */ | |
1012 | ||
1013 | /* Start of tfc_tpg_base_cit */ | |
1014 | /* | |
1015 | * For use with TF_TPG_ATTR() and TF_TPG_ATTR_RO() | |
1016 | */ | |
1017 | CONFIGFS_EATTR_OPS(target_fabric_tpg, se_portal_group, tpg_group); | |
1018 | ||
1f6fe7cb NB |
1019 | static void target_fabric_tpg_release(struct config_item *item) |
1020 | { | |
1021 | struct se_portal_group *se_tpg = container_of(to_config_group(item), | |
1022 | struct se_portal_group, tpg_group); | |
1023 | struct se_wwn *wwn = se_tpg->se_tpg_wwn; | |
1024 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
1025 | ||
1026 | tf->tf_ops.fabric_drop_tpg(se_tpg); | |
1027 | } | |
1028 | ||
c66ac9db | 1029 | static struct configfs_item_operations target_fabric_tpg_base_item_ops = { |
1f6fe7cb | 1030 | .release = target_fabric_tpg_release, |
c66ac9db NB |
1031 | .show_attribute = target_fabric_tpg_attr_show, |
1032 | .store_attribute = target_fabric_tpg_attr_store, | |
1033 | }; | |
1034 | ||
9ac8928e | 1035 | TF_CIT_SETUP_DRV(tpg_base, &target_fabric_tpg_base_item_ops, NULL); |
c66ac9db NB |
1036 | |
1037 | /* End of tfc_tpg_base_cit */ | |
1038 | ||
1039 | /* Start of tfc_tpg_cit */ | |
1040 | ||
1041 | static struct config_group *target_fabric_make_tpg( | |
1042 | struct config_group *group, | |
1043 | const char *name) | |
1044 | { | |
1045 | struct se_wwn *wwn = container_of(group, struct se_wwn, wwn_group); | |
1046 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
1047 | struct se_portal_group *se_tpg; | |
1048 | ||
6708bb27 AG |
1049 | if (!tf->tf_ops.fabric_make_tpg) { |
1050 | pr_err("tf->tf_ops.fabric_make_tpg is NULL\n"); | |
c66ac9db NB |
1051 | return ERR_PTR(-ENOSYS); |
1052 | } | |
1053 | ||
1054 | se_tpg = tf->tf_ops.fabric_make_tpg(wwn, group, name); | |
6708bb27 | 1055 | if (!se_tpg || IS_ERR(se_tpg)) |
c66ac9db NB |
1056 | return ERR_PTR(-EINVAL); |
1057 | /* | |
1058 | * Setup default groups from pre-allocated se_tpg->tpg_default_groups | |
1059 | */ | |
1060 | se_tpg->tpg_group.default_groups = se_tpg->tpg_default_groups; | |
1061 | se_tpg->tpg_group.default_groups[0] = &se_tpg->tpg_lun_group; | |
1062 | se_tpg->tpg_group.default_groups[1] = &se_tpg->tpg_np_group; | |
1063 | se_tpg->tpg_group.default_groups[2] = &se_tpg->tpg_acl_group; | |
1064 | se_tpg->tpg_group.default_groups[3] = &se_tpg->tpg_attrib_group; | |
e4b512e7 NB |
1065 | se_tpg->tpg_group.default_groups[4] = &se_tpg->tpg_auth_group; |
1066 | se_tpg->tpg_group.default_groups[5] = &se_tpg->tpg_param_group; | |
1067 | se_tpg->tpg_group.default_groups[6] = NULL; | |
c66ac9db NB |
1068 | |
1069 | config_group_init_type_name(&se_tpg->tpg_group, name, | |
d80e224d | 1070 | &tf->tf_cit_tmpl.tfc_tpg_base_cit); |
c66ac9db | 1071 | config_group_init_type_name(&se_tpg->tpg_lun_group, "lun", |
d80e224d | 1072 | &tf->tf_cit_tmpl.tfc_tpg_lun_cit); |
c66ac9db | 1073 | config_group_init_type_name(&se_tpg->tpg_np_group, "np", |
d80e224d | 1074 | &tf->tf_cit_tmpl.tfc_tpg_np_cit); |
c66ac9db | 1075 | config_group_init_type_name(&se_tpg->tpg_acl_group, "acls", |
d80e224d | 1076 | &tf->tf_cit_tmpl.tfc_tpg_nacl_cit); |
c66ac9db | 1077 | config_group_init_type_name(&se_tpg->tpg_attrib_group, "attrib", |
d80e224d | 1078 | &tf->tf_cit_tmpl.tfc_tpg_attrib_cit); |
e4b512e7 | 1079 | config_group_init_type_name(&se_tpg->tpg_auth_group, "auth", |
d80e224d | 1080 | &tf->tf_cit_tmpl.tfc_tpg_auth_cit); |
c66ac9db | 1081 | config_group_init_type_name(&se_tpg->tpg_param_group, "param", |
d80e224d | 1082 | &tf->tf_cit_tmpl.tfc_tpg_param_cit); |
c66ac9db NB |
1083 | |
1084 | return &se_tpg->tpg_group; | |
1085 | } | |
1086 | ||
1087 | static void target_fabric_drop_tpg( | |
1088 | struct config_group *group, | |
1089 | struct config_item *item) | |
1090 | { | |
c66ac9db NB |
1091 | struct se_portal_group *se_tpg = container_of(to_config_group(item), |
1092 | struct se_portal_group, tpg_group); | |
1093 | struct config_group *tpg_cg = &se_tpg->tpg_group; | |
1094 | struct config_item *df_item; | |
1095 | int i; | |
1096 | /* | |
1097 | * Release default groups, but do not release tpg_cg->default_groups | |
1098 | * memory as it is statically allocated at se_tpg->tpg_default_groups. | |
1099 | */ | |
1100 | for (i = 0; tpg_cg->default_groups[i]; i++) { | |
1101 | df_item = &tpg_cg->default_groups[i]->cg_item; | |
1102 | tpg_cg->default_groups[i] = NULL; | |
1103 | config_item_put(df_item); | |
1104 | } | |
1105 | ||
1106 | config_item_put(item); | |
c66ac9db NB |
1107 | } |
1108 | ||
1f6fe7cb NB |
1109 | static void target_fabric_release_wwn(struct config_item *item) |
1110 | { | |
1111 | struct se_wwn *wwn = container_of(to_config_group(item), | |
1112 | struct se_wwn, wwn_group); | |
1113 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
1114 | ||
1115 | tf->tf_ops.fabric_drop_wwn(wwn); | |
1116 | } | |
1117 | ||
1118 | static struct configfs_item_operations target_fabric_tpg_item_ops = { | |
1119 | .release = target_fabric_release_wwn, | |
1120 | }; | |
1121 | ||
c66ac9db NB |
1122 | static struct configfs_group_operations target_fabric_tpg_group_ops = { |
1123 | .make_group = target_fabric_make_tpg, | |
1124 | .drop_item = target_fabric_drop_tpg, | |
1125 | }; | |
1126 | ||
1f6fe7cb NB |
1127 | TF_CIT_SETUP(tpg, &target_fabric_tpg_item_ops, &target_fabric_tpg_group_ops, |
1128 | NULL); | |
c66ac9db NB |
1129 | |
1130 | /* End of tfc_tpg_cit */ | |
1131 | ||
12d23384 NB |
1132 | /* Start of tfc_wwn_fabric_stats_cit */ |
1133 | /* | |
1134 | * This is used as a placeholder for struct se_wwn->fabric_stat_group | |
1135 | * to allow fabrics access to ->fabric_stat_group->default_groups[] | |
1136 | */ | |
1137 | TF_CIT_SETUP(wwn_fabric_stats, NULL, NULL, NULL); | |
1138 | ||
1139 | /* End of tfc_wwn_fabric_stats_cit */ | |
1140 | ||
c66ac9db NB |
1141 | /* Start of tfc_wwn_cit */ |
1142 | ||
1143 | static struct config_group *target_fabric_make_wwn( | |
1144 | struct config_group *group, | |
1145 | const char *name) | |
1146 | { | |
1147 | struct target_fabric_configfs *tf = container_of(group, | |
1148 | struct target_fabric_configfs, tf_group); | |
1149 | struct se_wwn *wwn; | |
1150 | ||
6708bb27 AG |
1151 | if (!tf->tf_ops.fabric_make_wwn) { |
1152 | pr_err("tf->tf_ops.fabric_make_wwn is NULL\n"); | |
c66ac9db NB |
1153 | return ERR_PTR(-ENOSYS); |
1154 | } | |
1155 | ||
1156 | wwn = tf->tf_ops.fabric_make_wwn(tf, group, name); | |
6708bb27 | 1157 | if (!wwn || IS_ERR(wwn)) |
c66ac9db NB |
1158 | return ERR_PTR(-EINVAL); |
1159 | ||
1160 | wwn->wwn_tf = tf; | |
12d23384 NB |
1161 | /* |
1162 | * Setup default groups from pre-allocated wwn->wwn_default_groups | |
1163 | */ | |
1164 | wwn->wwn_group.default_groups = wwn->wwn_default_groups; | |
1165 | wwn->wwn_group.default_groups[0] = &wwn->fabric_stat_group; | |
1166 | wwn->wwn_group.default_groups[1] = NULL; | |
1167 | ||
c66ac9db | 1168 | config_group_init_type_name(&wwn->wwn_group, name, |
d80e224d | 1169 | &tf->tf_cit_tmpl.tfc_tpg_cit); |
12d23384 | 1170 | config_group_init_type_name(&wwn->fabric_stat_group, "fabric_statistics", |
d80e224d | 1171 | &tf->tf_cit_tmpl.tfc_wwn_fabric_stats_cit); |
c66ac9db NB |
1172 | |
1173 | return &wwn->wwn_group; | |
1174 | } | |
1175 | ||
1176 | static void target_fabric_drop_wwn( | |
1177 | struct config_group *group, | |
1178 | struct config_item *item) | |
1179 | { | |
12d23384 NB |
1180 | struct se_wwn *wwn = container_of(to_config_group(item), |
1181 | struct se_wwn, wwn_group); | |
1182 | struct config_item *df_item; | |
1183 | struct config_group *cg = &wwn->wwn_group; | |
1184 | int i; | |
1185 | ||
1186 | for (i = 0; cg->default_groups[i]; i++) { | |
1187 | df_item = &cg->default_groups[i]->cg_item; | |
1188 | cg->default_groups[i] = NULL; | |
1189 | config_item_put(df_item); | |
1190 | } | |
1191 | ||
c66ac9db | 1192 | config_item_put(item); |
c66ac9db NB |
1193 | } |
1194 | ||
1195 | static struct configfs_group_operations target_fabric_wwn_group_ops = { | |
1196 | .make_group = target_fabric_make_wwn, | |
1197 | .drop_item = target_fabric_drop_wwn, | |
1198 | }; | |
1199 | /* | |
1200 | * For use with TF_WWN_ATTR() and TF_WWN_ATTR_RO() | |
1201 | */ | |
1202 | CONFIGFS_EATTR_OPS(target_fabric_wwn, target_fabric_configfs, tf_group); | |
1203 | ||
1204 | static struct configfs_item_operations target_fabric_wwn_item_ops = { | |
1205 | .show_attribute = target_fabric_wwn_attr_show, | |
1206 | .store_attribute = target_fabric_wwn_attr_store, | |
1207 | }; | |
1208 | ||
9ac8928e | 1209 | TF_CIT_SETUP_DRV(wwn, &target_fabric_wwn_item_ops, &target_fabric_wwn_group_ops); |
c66ac9db NB |
1210 | |
1211 | /* End of tfc_wwn_cit */ | |
1212 | ||
1213 | /* Start of tfc_discovery_cit */ | |
1214 | ||
1215 | CONFIGFS_EATTR_OPS(target_fabric_discovery, target_fabric_configfs, | |
1216 | tf_disc_group); | |
1217 | ||
1218 | static struct configfs_item_operations target_fabric_discovery_item_ops = { | |
1219 | .show_attribute = target_fabric_discovery_attr_show, | |
1220 | .store_attribute = target_fabric_discovery_attr_store, | |
1221 | }; | |
1222 | ||
9ac8928e | 1223 | TF_CIT_SETUP_DRV(discovery, &target_fabric_discovery_item_ops, NULL); |
c66ac9db NB |
1224 | |
1225 | /* End of tfc_discovery_cit */ | |
1226 | ||
1227 | int target_fabric_setup_cits(struct target_fabric_configfs *tf) | |
1228 | { | |
1229 | target_fabric_setup_discovery_cit(tf); | |
1230 | target_fabric_setup_wwn_cit(tf); | |
12d23384 | 1231 | target_fabric_setup_wwn_fabric_stats_cit(tf); |
c66ac9db NB |
1232 | target_fabric_setup_tpg_cit(tf); |
1233 | target_fabric_setup_tpg_base_cit(tf); | |
1234 | target_fabric_setup_tpg_port_cit(tf); | |
12d23384 | 1235 | target_fabric_setup_tpg_port_stat_cit(tf); |
c66ac9db NB |
1236 | target_fabric_setup_tpg_lun_cit(tf); |
1237 | target_fabric_setup_tpg_np_cit(tf); | |
1238 | target_fabric_setup_tpg_np_base_cit(tf); | |
1239 | target_fabric_setup_tpg_attrib_cit(tf); | |
e4b512e7 | 1240 | target_fabric_setup_tpg_auth_cit(tf); |
c66ac9db NB |
1241 | target_fabric_setup_tpg_param_cit(tf); |
1242 | target_fabric_setup_tpg_nacl_cit(tf); | |
1243 | target_fabric_setup_tpg_nacl_base_cit(tf); | |
1244 | target_fabric_setup_tpg_nacl_attrib_cit(tf); | |
1245 | target_fabric_setup_tpg_nacl_auth_cit(tf); | |
1246 | target_fabric_setup_tpg_nacl_param_cit(tf); | |
12d23384 | 1247 | target_fabric_setup_tpg_nacl_stat_cit(tf); |
c66ac9db | 1248 | target_fabric_setup_tpg_mappedlun_cit(tf); |
12d23384 | 1249 | target_fabric_setup_tpg_mappedlun_stat_cit(tf); |
c66ac9db NB |
1250 | |
1251 | return 0; | |
1252 | } |