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  *
7  * Copyright (c) 2010,2011 Rising Tide Systems
8  * Copyright (c) 2010,2011 Linux-iSCSI.org
9  *
10  * Copyright (c) Nicholas A. Bellinger <nab@linux-iscsi.org>
11 *
12  * This program is free software; you can redistribute it and/or modify
13  * it under the terms of the GNU General Public License as published by
14  * the Free Software Foundation; either version 2 of the License, or
15  * (at your option) any later version.
16  *
17  * This program is distributed in the hope that it will be useful,
18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20  * GNU General Public License for more details.
21  ****************************************************************************/
22 
23 #include <linux/module.h>
24 #include <linux/moduleparam.h>
25 #include <linux/version.h>
26 #include <generated/utsrelease.h>
27 #include <linux/utsname.h>
28 #include <linux/init.h>
29 #include <linux/fs.h>
30 #include <linux/namei.h>
31 #include <linux/slab.h>
32 #include <linux/types.h>
33 #include <linux/delay.h>
34 #include <linux/unistd.h>
35 #include <linux/string.h>
36 #include <linux/syscalls.h>
37 #include <linux/configfs.h>
38 
39 #include <target/target_core_base.h>
40 #include <target/target_core_device.h>
41 #include <target/target_core_tpg.h>
42 #include <target/target_core_transport.h>
43 #include <target/target_core_fabric_ops.h>
44 #include <target/target_core_fabric_configfs.h>
45 #include <target/target_core_configfs.h>
46 #include <target/configfs_macros.h>
47 
48 #include "target_core_alua.h"
49 #include "target_core_hba.h"
50 #include "target_core_pr.h"
51 #include "target_core_stat.h"
52 
53 #define TF_CIT_SETUP(_name, _item_ops, _group_ops, _attrs)		\
54 static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf) \
55 {									\
56 	struct target_fabric_configfs_template *tfc = &tf->tf_cit_tmpl;	\
57 	struct config_item_type *cit = &tfc->tfc_##_name##_cit;		\
58 									\
59 	cit->ct_item_ops = _item_ops;					\
60 	cit->ct_group_ops = _group_ops;					\
61 	cit->ct_attrs = _attrs;						\
62 	cit->ct_owner = tf->tf_module;					\
63 	pr_debug("Setup generic %s\n", __stringify(_name));		\
64 }
65 
66 /* Start of tfc_tpg_mappedlun_cit */
67 
68 static int target_fabric_mappedlun_link(
69 	struct config_item *lun_acl_ci,
70 	struct config_item *lun_ci)
71 {
72 	struct se_dev_entry *deve;
73 	struct se_lun *lun = container_of(to_config_group(lun_ci),
74 			struct se_lun, lun_group);
75 	struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci),
76 			struct se_lun_acl, se_lun_group);
77 	struct se_portal_group *se_tpg;
78 	struct config_item *nacl_ci, *tpg_ci, *tpg_ci_s, *wwn_ci, *wwn_ci_s;
79 	int ret = 0, lun_access;
80 	/*
81 	 * Ensure that the source port exists
82 	 */
83 	if (!lun->lun_sep || !lun->lun_sep->sep_tpg) {
84 		pr_err("Source se_lun->lun_sep or lun->lun_sep->sep"
85 				"_tpg does not exist\n");
86 		return -EINVAL;
87 	}
88 	se_tpg = lun->lun_sep->sep_tpg;
89 
90 	nacl_ci = &lun_acl_ci->ci_parent->ci_group->cg_item;
91 	tpg_ci = &nacl_ci->ci_group->cg_item;
92 	wwn_ci = &tpg_ci->ci_group->cg_item;
93 	tpg_ci_s = &lun_ci->ci_parent->ci_group->cg_item;
94 	wwn_ci_s = &tpg_ci_s->ci_group->cg_item;
95 	/*
96 	 * Make sure the SymLink is going to the same $FABRIC/$WWN/tpgt_$TPGT
97 	 */
98 	if (strcmp(config_item_name(wwn_ci), config_item_name(wwn_ci_s))) {
99 		pr_err("Illegal Initiator ACL SymLink outside of %s\n",
100 			config_item_name(wwn_ci));
101 		return -EINVAL;
102 	}
103 	if (strcmp(config_item_name(tpg_ci), config_item_name(tpg_ci_s))) {
104 		pr_err("Illegal Initiator ACL Symlink outside of %s"
105 			" TPGT: %s\n", config_item_name(wwn_ci),
106 			config_item_name(tpg_ci));
107 		return -EINVAL;
108 	}
109 	/*
110 	 * If this struct se_node_acl was dynamically generated with
111 	 * tpg_1/attrib/generate_node_acls=1, use the existing deve->lun_flags,
112 	 * which be will write protected (READ-ONLY) when
113 	 * tpg_1/attrib/demo_mode_write_protect=1
114 	 */
115 	spin_lock_irq(&lacl->se_lun_nacl->device_list_lock);
116 	deve = &lacl->se_lun_nacl->device_list[lacl->mapped_lun];
117 	if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS)
118 		lun_access = deve->lun_flags;
119 	else
120 		lun_access =
121 			(se_tpg->se_tpg_tfo->tpg_check_prod_mode_write_protect(
122 				se_tpg)) ? TRANSPORT_LUNFLAGS_READ_ONLY :
123 					   TRANSPORT_LUNFLAGS_READ_WRITE;
124 	spin_unlock_irq(&lacl->se_lun_nacl->device_list_lock);
125 	/*
126 	 * Determine the actual mapped LUN value user wants..
127 	 *
128 	 * This value is what the SCSI Initiator actually sees the
129 	 * iscsi/$IQN/$TPGT/lun/lun_* as on their SCSI Initiator Ports.
130 	 */
131 	ret = core_dev_add_initiator_node_lun_acl(se_tpg, lacl,
132 			lun->unpacked_lun, lun_access);
133 
134 	return (ret < 0) ? -EINVAL : 0;
135 }
136 
137 static int target_fabric_mappedlun_unlink(
138 	struct config_item *lun_acl_ci,
139 	struct config_item *lun_ci)
140 {
141 	struct se_lun *lun;
142 	struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci),
143 			struct se_lun_acl, se_lun_group);
144 	struct se_node_acl *nacl = lacl->se_lun_nacl;
145 	struct se_dev_entry *deve = &nacl->device_list[lacl->mapped_lun];
146 	struct se_portal_group *se_tpg;
147 	/*
148 	 * Determine if the underlying MappedLUN has already been released..
149 	 */
150 	if (!deve->se_lun)
151 		return 0;
152 
153 	lun = container_of(to_config_group(lun_ci), struct se_lun, lun_group);
154 	se_tpg = lun->lun_sep->sep_tpg;
155 
156 	core_dev_del_initiator_node_lun_acl(se_tpg, lun, lacl);
157 	return 0;
158 }
159 
160 CONFIGFS_EATTR_STRUCT(target_fabric_mappedlun, se_lun_acl);
161 #define TCM_MAPPEDLUN_ATTR(_name, _mode)				\
162 static struct target_fabric_mappedlun_attribute target_fabric_mappedlun_##_name = \
163 	__CONFIGFS_EATTR(_name, _mode,					\
164 	target_fabric_mappedlun_show_##_name,				\
165 	target_fabric_mappedlun_store_##_name);
166 
167 static ssize_t target_fabric_mappedlun_show_write_protect(
168 	struct se_lun_acl *lacl,
169 	char *page)
170 {
171 	struct se_node_acl *se_nacl = lacl->se_lun_nacl;
172 	struct se_dev_entry *deve;
173 	ssize_t len;
174 
175 	spin_lock_irq(&se_nacl->device_list_lock);
176 	deve = &se_nacl->device_list[lacl->mapped_lun];
177 	len = sprintf(page, "%d\n",
178 			(deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY) ?
179 			1 : 0);
180 	spin_unlock_irq(&se_nacl->device_list_lock);
181 
182 	return len;
183 }
184 
185 static ssize_t target_fabric_mappedlun_store_write_protect(
186 	struct se_lun_acl *lacl,
187 	const char *page,
188 	size_t count)
189 {
190 	struct se_node_acl *se_nacl = lacl->se_lun_nacl;
191 	struct se_portal_group *se_tpg = se_nacl->se_tpg;
192 	unsigned long op;
193 
194 	if (strict_strtoul(page, 0, &op))
195 		return -EINVAL;
196 
197 	if ((op != 1) && (op != 0))
198 		return -EINVAL;
199 
200 	core_update_device_list_access(lacl->mapped_lun, (op) ?
201 			TRANSPORT_LUNFLAGS_READ_ONLY :
202 			TRANSPORT_LUNFLAGS_READ_WRITE,
203 			lacl->se_lun_nacl);
204 
205 	pr_debug("%s_ConfigFS: Changed Initiator ACL: %s"
206 		" Mapped LUN: %u Write Protect bit to %s\n",
207 		se_tpg->se_tpg_tfo->get_fabric_name(),
208 		lacl->initiatorname, lacl->mapped_lun, (op) ? "ON" : "OFF");
209 
210 	return count;
211 
212 }
213 
214 TCM_MAPPEDLUN_ATTR(write_protect, S_IRUGO | S_IWUSR);
215 
216 CONFIGFS_EATTR_OPS(target_fabric_mappedlun, se_lun_acl, se_lun_group);
217 
218 static void target_fabric_mappedlun_release(struct config_item *item)
219 {
220 	struct se_lun_acl *lacl = container_of(to_config_group(item),
221 				struct se_lun_acl, se_lun_group);
222 	struct se_portal_group *se_tpg = lacl->se_lun_nacl->se_tpg;
223 
224 	core_dev_free_initiator_node_lun_acl(se_tpg, lacl);
225 }
226 
227 static struct configfs_attribute *target_fabric_mappedlun_attrs[] = {
228 	&target_fabric_mappedlun_write_protect.attr,
229 	NULL,
230 };
231 
232 static struct configfs_item_operations target_fabric_mappedlun_item_ops = {
233 	.release		= target_fabric_mappedlun_release,
234 	.show_attribute		= target_fabric_mappedlun_attr_show,
235 	.store_attribute	= target_fabric_mappedlun_attr_store,
236 	.allow_link		= target_fabric_mappedlun_link,
237 	.drop_link		= target_fabric_mappedlun_unlink,
238 };
239 
240 TF_CIT_SETUP(tpg_mappedlun, &target_fabric_mappedlun_item_ops, NULL,
241 		target_fabric_mappedlun_attrs);
242 
243 /* End of tfc_tpg_mappedlun_cit */
244 
245 /* Start of tfc_tpg_mappedlun_port_cit */
246 
247 static struct config_group *target_core_mappedlun_stat_mkdir(
248 	struct config_group *group,
249 	const char *name)
250 {
251 	return ERR_PTR(-ENOSYS);
252 }
253 
254 static void target_core_mappedlun_stat_rmdir(
255 	struct config_group *group,
256 	struct config_item *item)
257 {
258 	return;
259 }
260 
261 static struct configfs_group_operations target_fabric_mappedlun_stat_group_ops = {
262 	.make_group		= target_core_mappedlun_stat_mkdir,
263 	.drop_item		= target_core_mappedlun_stat_rmdir,
264 };
265 
266 TF_CIT_SETUP(tpg_mappedlun_stat, NULL, &target_fabric_mappedlun_stat_group_ops,
267 		NULL);
268 
269 /* End of tfc_tpg_mappedlun_port_cit */
270 
271 /* Start of tfc_tpg_nacl_attrib_cit */
272 
273 CONFIGFS_EATTR_OPS(target_fabric_nacl_attrib, se_node_acl, acl_attrib_group);
274 
275 static struct configfs_item_operations target_fabric_nacl_attrib_item_ops = {
276 	.show_attribute		= target_fabric_nacl_attrib_attr_show,
277 	.store_attribute	= target_fabric_nacl_attrib_attr_store,
278 };
279 
280 TF_CIT_SETUP(tpg_nacl_attrib, &target_fabric_nacl_attrib_item_ops, NULL, NULL);
281 
282 /* End of tfc_tpg_nacl_attrib_cit */
283 
284 /* Start of tfc_tpg_nacl_auth_cit */
285 
286 CONFIGFS_EATTR_OPS(target_fabric_nacl_auth, se_node_acl, acl_auth_group);
287 
288 static struct configfs_item_operations target_fabric_nacl_auth_item_ops = {
289 	.show_attribute		= target_fabric_nacl_auth_attr_show,
290 	.store_attribute	= target_fabric_nacl_auth_attr_store,
291 };
292 
293 TF_CIT_SETUP(tpg_nacl_auth, &target_fabric_nacl_auth_item_ops, NULL, NULL);
294 
295 /* End of tfc_tpg_nacl_auth_cit */
296 
297 /* Start of tfc_tpg_nacl_param_cit */
298 
299 CONFIGFS_EATTR_OPS(target_fabric_nacl_param, se_node_acl, acl_param_group);
300 
301 static struct configfs_item_operations target_fabric_nacl_param_item_ops = {
302 	.show_attribute		= target_fabric_nacl_param_attr_show,
303 	.store_attribute	= target_fabric_nacl_param_attr_store,
304 };
305 
306 TF_CIT_SETUP(tpg_nacl_param, &target_fabric_nacl_param_item_ops, NULL, NULL);
307 
308 /* End of tfc_tpg_nacl_param_cit */
309 
310 /* Start of tfc_tpg_nacl_base_cit */
311 
312 CONFIGFS_EATTR_OPS(target_fabric_nacl_base, se_node_acl, acl_group);
313 
314 static struct config_group *target_fabric_make_mappedlun(
315 	struct config_group *group,
316 	const char *name)
317 {
318 	struct se_node_acl *se_nacl = container_of(group,
319 			struct se_node_acl, acl_group);
320 	struct se_portal_group *se_tpg = se_nacl->se_tpg;
321 	struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
322 	struct se_lun_acl *lacl;
323 	struct config_item *acl_ci;
324 	struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL;
325 	char *buf;
326 	unsigned long mapped_lun;
327 	int ret = 0;
328 
329 	acl_ci = &group->cg_item;
330 	if (!acl_ci) {
331 		pr_err("Unable to locatel acl_ci\n");
332 		return NULL;
333 	}
334 
335 	buf = kzalloc(strlen(name) + 1, GFP_KERNEL);
336 	if (!buf) {
337 		pr_err("Unable to allocate memory for name buf\n");
338 		return ERR_PTR(-ENOMEM);
339 	}
340 	snprintf(buf, strlen(name) + 1, "%s", name);
341 	/*
342 	 * Make sure user is creating iscsi/$IQN/$TPGT/acls/$INITIATOR/lun_$ID.
343 	 */
344 	if (strstr(buf, "lun_") != buf) {
345 		pr_err("Unable to locate \"lun_\" from buf: %s"
346 			" name: %s\n", buf, name);
347 		ret = -EINVAL;
348 		goto out;
349 	}
350 	/*
351 	 * Determine the Mapped LUN value.  This is what the SCSI Initiator
352 	 * Port will actually see.
353 	 */
354 	if (strict_strtoul(buf + 4, 0, &mapped_lun) || mapped_lun > UINT_MAX) {
355 		ret = -EINVAL;
356 		goto out;
357 	}
358 
359 	lacl = core_dev_init_initiator_node_lun_acl(se_tpg, mapped_lun,
360 			config_item_name(acl_ci), &ret);
361 	if (!lacl) {
362 		ret = -EINVAL;
363 		goto out;
364 	}
365 
366 	lacl_cg = &lacl->se_lun_group;
367 	lacl_cg->default_groups = kzalloc(sizeof(struct config_group) * 2,
368 				GFP_KERNEL);
369 	if (!lacl_cg->default_groups) {
370 		pr_err("Unable to allocate lacl_cg->default_groups\n");
371 		ret = -ENOMEM;
372 		goto out;
373 	}
374 
375 	config_group_init_type_name(&lacl->se_lun_group, name,
376 			&TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_cit);
377 	config_group_init_type_name(&lacl->ml_stat_grps.stat_group,
378 			"statistics", &TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_stat_cit);
379 	lacl_cg->default_groups[0] = &lacl->ml_stat_grps.stat_group;
380 	lacl_cg->default_groups[1] = NULL;
381 
382 	ml_stat_grp = &lacl->ml_stat_grps.stat_group;
383 	ml_stat_grp->default_groups = kzalloc(sizeof(struct config_group) * 3,
384 				GFP_KERNEL);
385 	if (!ml_stat_grp->default_groups) {
386 		pr_err("Unable to allocate ml_stat_grp->default_groups\n");
387 		ret = -ENOMEM;
388 		goto out;
389 	}
390 	target_stat_setup_mappedlun_default_groups(lacl);
391 
392 	kfree(buf);
393 	return &lacl->se_lun_group;
394 out:
395 	if (lacl_cg)
396 		kfree(lacl_cg->default_groups);
397 	kfree(buf);
398 	return ERR_PTR(ret);
399 }
400 
401 static void target_fabric_drop_mappedlun(
402 	struct config_group *group,
403 	struct config_item *item)
404 {
405 	struct se_lun_acl *lacl = container_of(to_config_group(item),
406 			struct se_lun_acl, se_lun_group);
407 	struct config_item *df_item;
408 	struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL;
409 	int i;
410 
411 	ml_stat_grp = &lacl->ml_stat_grps.stat_group;
412 	for (i = 0; ml_stat_grp->default_groups[i]; i++) {
413 		df_item = &ml_stat_grp->default_groups[i]->cg_item;
414 		ml_stat_grp->default_groups[i] = NULL;
415 		config_item_put(df_item);
416 	}
417 	kfree(ml_stat_grp->default_groups);
418 
419 	lacl_cg = &lacl->se_lun_group;
420 	for (i = 0; lacl_cg->default_groups[i]; i++) {
421 		df_item = &lacl_cg->default_groups[i]->cg_item;
422 		lacl_cg->default_groups[i] = NULL;
423 		config_item_put(df_item);
424 	}
425 	kfree(lacl_cg->default_groups);
426 
427 	config_item_put(item);
428 }
429 
430 static void target_fabric_nacl_base_release(struct config_item *item)
431 {
432 	struct se_node_acl *se_nacl = container_of(to_config_group(item),
433 			struct se_node_acl, acl_group);
434 	struct se_portal_group *se_tpg = se_nacl->se_tpg;
435 	struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
436 
437 	tf->tf_ops.fabric_drop_nodeacl(se_nacl);
438 }
439 
440 static struct configfs_item_operations target_fabric_nacl_base_item_ops = {
441 	.release		= target_fabric_nacl_base_release,
442 	.show_attribute		= target_fabric_nacl_base_attr_show,
443 	.store_attribute	= target_fabric_nacl_base_attr_store,
444 };
445 
446 static struct configfs_group_operations target_fabric_nacl_base_group_ops = {
447 	.make_group		= target_fabric_make_mappedlun,
448 	.drop_item		= target_fabric_drop_mappedlun,
449 };
450 
451 TF_CIT_SETUP(tpg_nacl_base, &target_fabric_nacl_base_item_ops,
452 		&target_fabric_nacl_base_group_ops, NULL);
453 
454 /* End of tfc_tpg_nacl_base_cit */
455 
456 /* Start of tfc_node_fabric_stats_cit */
457 /*
458  * This is used as a placeholder for struct se_node_acl->acl_fabric_stat_group
459  * to allow fabrics access to ->acl_fabric_stat_group->default_groups[]
460  */
461 TF_CIT_SETUP(tpg_nacl_stat, NULL, NULL, NULL);
462 
463 /* End of tfc_wwn_fabric_stats_cit */
464 
465 /* Start of tfc_tpg_nacl_cit */
466 
467 static struct config_group *target_fabric_make_nodeacl(
468 	struct config_group *group,
469 	const char *name)
470 {
471 	struct se_portal_group *se_tpg = container_of(group,
472 			struct se_portal_group, tpg_acl_group);
473 	struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
474 	struct se_node_acl *se_nacl;
475 	struct config_group *nacl_cg;
476 
477 	if (!tf->tf_ops.fabric_make_nodeacl) {
478 		pr_err("tf->tf_ops.fabric_make_nodeacl is NULL\n");
479 		return ERR_PTR(-ENOSYS);
480 	}
481 
482 	se_nacl = tf->tf_ops.fabric_make_nodeacl(se_tpg, group, name);
483 	if (IS_ERR(se_nacl))
484 		return ERR_PTR(PTR_ERR(se_nacl));
485 
486 	nacl_cg = &se_nacl->acl_group;
487 	nacl_cg->default_groups = se_nacl->acl_default_groups;
488 	nacl_cg->default_groups[0] = &se_nacl->acl_attrib_group;
489 	nacl_cg->default_groups[1] = &se_nacl->acl_auth_group;
490 	nacl_cg->default_groups[2] = &se_nacl->acl_param_group;
491 	nacl_cg->default_groups[3] = &se_nacl->acl_fabric_stat_group;
492 	nacl_cg->default_groups[4] = NULL;
493 
494 	config_group_init_type_name(&se_nacl->acl_group, name,
495 			&TF_CIT_TMPL(tf)->tfc_tpg_nacl_base_cit);
496 	config_group_init_type_name(&se_nacl->acl_attrib_group, "attrib",
497 			&TF_CIT_TMPL(tf)->tfc_tpg_nacl_attrib_cit);
498 	config_group_init_type_name(&se_nacl->acl_auth_group, "auth",
499 			&TF_CIT_TMPL(tf)->tfc_tpg_nacl_auth_cit);
500 	config_group_init_type_name(&se_nacl->acl_param_group, "param",
501 			&TF_CIT_TMPL(tf)->tfc_tpg_nacl_param_cit);
502 	config_group_init_type_name(&se_nacl->acl_fabric_stat_group,
503 			"fabric_statistics",
504 			&TF_CIT_TMPL(tf)->tfc_tpg_nacl_stat_cit);
505 
506 	return &se_nacl->acl_group;
507 }
508 
509 static void target_fabric_drop_nodeacl(
510 	struct config_group *group,
511 	struct config_item *item)
512 {
513 	struct se_node_acl *se_nacl = container_of(to_config_group(item),
514 			struct se_node_acl, acl_group);
515 	struct config_item *df_item;
516 	struct config_group *nacl_cg;
517 	int i;
518 
519 	nacl_cg = &se_nacl->acl_group;
520 	for (i = 0; nacl_cg->default_groups[i]; i++) {
521 		df_item = &nacl_cg->default_groups[i]->cg_item;
522 		nacl_cg->default_groups[i] = NULL;
523 		config_item_put(df_item);
524 	}
525 	/*
526 	 * struct se_node_acl free is done in target_fabric_nacl_base_release()
527 	 */
528 	config_item_put(item);
529 }
530 
531 static struct configfs_group_operations target_fabric_nacl_group_ops = {
532 	.make_group	= target_fabric_make_nodeacl,
533 	.drop_item	= target_fabric_drop_nodeacl,
534 };
535 
536 TF_CIT_SETUP(tpg_nacl, NULL, &target_fabric_nacl_group_ops, NULL);
537 
538 /* End of tfc_tpg_nacl_cit */
539 
540 /* Start of tfc_tpg_np_base_cit */
541 
542 CONFIGFS_EATTR_OPS(target_fabric_np_base, se_tpg_np, tpg_np_group);
543 
544 static void target_fabric_np_base_release(struct config_item *item)
545 {
546 	struct se_tpg_np *se_tpg_np = container_of(to_config_group(item),
547 				struct se_tpg_np, tpg_np_group);
548 	struct se_portal_group *se_tpg = se_tpg_np->tpg_np_parent;
549 	struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
550 
551 	tf->tf_ops.fabric_drop_np(se_tpg_np);
552 }
553 
554 static struct configfs_item_operations target_fabric_np_base_item_ops = {
555 	.release		= target_fabric_np_base_release,
556 	.show_attribute		= target_fabric_np_base_attr_show,
557 	.store_attribute	= target_fabric_np_base_attr_store,
558 };
559 
560 TF_CIT_SETUP(tpg_np_base, &target_fabric_np_base_item_ops, NULL, NULL);
561 
562 /* End of tfc_tpg_np_base_cit */
563 
564 /* Start of tfc_tpg_np_cit */
565 
566 static struct config_group *target_fabric_make_np(
567 	struct config_group *group,
568 	const char *name)
569 {
570 	struct se_portal_group *se_tpg = container_of(group,
571 				struct se_portal_group, tpg_np_group);
572 	struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
573 	struct se_tpg_np *se_tpg_np;
574 
575 	if (!tf->tf_ops.fabric_make_np) {
576 		pr_err("tf->tf_ops.fabric_make_np is NULL\n");
577 		return ERR_PTR(-ENOSYS);
578 	}
579 
580 	se_tpg_np = tf->tf_ops.fabric_make_np(se_tpg, group, name);
581 	if (!se_tpg_np || IS_ERR(se_tpg_np))
582 		return ERR_PTR(-EINVAL);
583 
584 	se_tpg_np->tpg_np_parent = se_tpg;
585 	config_group_init_type_name(&se_tpg_np->tpg_np_group, name,
586 			&TF_CIT_TMPL(tf)->tfc_tpg_np_base_cit);
587 
588 	return &se_tpg_np->tpg_np_group;
589 }
590 
591 static void target_fabric_drop_np(
592 	struct config_group *group,
593 	struct config_item *item)
594 {
595 	/*
596 	 * struct se_tpg_np is released via target_fabric_np_base_release()
597 	 */
598 	config_item_put(item);
599 }
600 
601 static struct configfs_group_operations target_fabric_np_group_ops = {
602 	.make_group	= &target_fabric_make_np,
603 	.drop_item	= &target_fabric_drop_np,
604 };
605 
606 TF_CIT_SETUP(tpg_np, NULL, &target_fabric_np_group_ops, NULL);
607 
608 /* End of tfc_tpg_np_cit */
609 
610 /* Start of tfc_tpg_port_cit */
611 
612 CONFIGFS_EATTR_STRUCT(target_fabric_port, se_lun);
613 #define TCM_PORT_ATTR(_name, _mode)					\
614 static struct target_fabric_port_attribute target_fabric_port_##_name =	\
615 	__CONFIGFS_EATTR(_name, _mode,					\
616 	target_fabric_port_show_attr_##_name,				\
617 	target_fabric_port_store_attr_##_name);
618 
619 #define TCM_PORT_ATTOR_RO(_name)					\
620 	__CONFIGFS_EATTR_RO(_name,					\
621 	target_fabric_port_show_attr_##_name);
622 
623 /*
624  * alua_tg_pt_gp
625  */
626 static ssize_t target_fabric_port_show_attr_alua_tg_pt_gp(
627 	struct se_lun *lun,
628 	char *page)
629 {
630 	if (!lun || !lun->lun_sep)
631 		return -ENODEV;
632 
633 	return core_alua_show_tg_pt_gp_info(lun->lun_sep, page);
634 }
635 
636 static ssize_t target_fabric_port_store_attr_alua_tg_pt_gp(
637 	struct se_lun *lun,
638 	const char *page,
639 	size_t count)
640 {
641 	if (!lun || !lun->lun_sep)
642 		return -ENODEV;
643 
644 	return core_alua_store_tg_pt_gp_info(lun->lun_sep, page, count);
645 }
646 
647 TCM_PORT_ATTR(alua_tg_pt_gp, S_IRUGO | S_IWUSR);
648 
649 /*
650  * alua_tg_pt_offline
651  */
652 static ssize_t target_fabric_port_show_attr_alua_tg_pt_offline(
653 	struct se_lun *lun,
654 	char *page)
655 {
656 	if (!lun || !lun->lun_sep)
657 		return -ENODEV;
658 
659 	return core_alua_show_offline_bit(lun, page);
660 }
661 
662 static ssize_t target_fabric_port_store_attr_alua_tg_pt_offline(
663 	struct se_lun *lun,
664 	const char *page,
665 	size_t count)
666 {
667 	if (!lun || !lun->lun_sep)
668 		return -ENODEV;
669 
670 	return core_alua_store_offline_bit(lun, page, count);
671 }
672 
673 TCM_PORT_ATTR(alua_tg_pt_offline, S_IRUGO | S_IWUSR);
674 
675 /*
676  * alua_tg_pt_status
677  */
678 static ssize_t target_fabric_port_show_attr_alua_tg_pt_status(
679 	struct se_lun *lun,
680 	char *page)
681 {
682 	if (!lun || !lun->lun_sep)
683 		return -ENODEV;
684 
685 	return core_alua_show_secondary_status(lun, page);
686 }
687 
688 static ssize_t target_fabric_port_store_attr_alua_tg_pt_status(
689 	struct se_lun *lun,
690 	const char *page,
691 	size_t count)
692 {
693 	if (!lun || !lun->lun_sep)
694 		return -ENODEV;
695 
696 	return core_alua_store_secondary_status(lun, page, count);
697 }
698 
699 TCM_PORT_ATTR(alua_tg_pt_status, S_IRUGO | S_IWUSR);
700 
701 /*
702  * alua_tg_pt_write_md
703  */
704 static ssize_t target_fabric_port_show_attr_alua_tg_pt_write_md(
705 	struct se_lun *lun,
706 	char *page)
707 {
708 	if (!lun || !lun->lun_sep)
709 		return -ENODEV;
710 
711 	return core_alua_show_secondary_write_metadata(lun, page);
712 }
713 
714 static ssize_t target_fabric_port_store_attr_alua_tg_pt_write_md(
715 	struct se_lun *lun,
716 	const char *page,
717 	size_t count)
718 {
719 	if (!lun || !lun->lun_sep)
720 		return -ENODEV;
721 
722 	return core_alua_store_secondary_write_metadata(lun, page, count);
723 }
724 
725 TCM_PORT_ATTR(alua_tg_pt_write_md, S_IRUGO | S_IWUSR);
726 
727 
728 static struct configfs_attribute *target_fabric_port_attrs[] = {
729 	&target_fabric_port_alua_tg_pt_gp.attr,
730 	&target_fabric_port_alua_tg_pt_offline.attr,
731 	&target_fabric_port_alua_tg_pt_status.attr,
732 	&target_fabric_port_alua_tg_pt_write_md.attr,
733 	NULL,
734 };
735 
736 CONFIGFS_EATTR_OPS(target_fabric_port, se_lun, lun_group);
737 
738 static int target_fabric_port_link(
739 	struct config_item *lun_ci,
740 	struct config_item *se_dev_ci)
741 {
742 	struct config_item *tpg_ci;
743 	struct se_device *dev;
744 	struct se_lun *lun = container_of(to_config_group(lun_ci),
745 				struct se_lun, lun_group);
746 	struct se_lun *lun_p;
747 	struct se_portal_group *se_tpg;
748 	struct se_subsystem_dev *se_dev = container_of(
749 				to_config_group(se_dev_ci), struct se_subsystem_dev,
750 				se_dev_group);
751 	struct target_fabric_configfs *tf;
752 	int ret;
753 
754 	tpg_ci = &lun_ci->ci_parent->ci_group->cg_item;
755 	se_tpg = container_of(to_config_group(tpg_ci),
756 				struct se_portal_group, tpg_group);
757 	tf = se_tpg->se_tpg_wwn->wwn_tf;
758 
759 	if (lun->lun_se_dev !=  NULL) {
760 		pr_err("Port Symlink already exists\n");
761 		return -EEXIST;
762 	}
763 
764 	dev = se_dev->se_dev_ptr;
765 	if (!dev) {
766 		pr_err("Unable to locate struct se_device pointer from"
767 			" %s\n", config_item_name(se_dev_ci));
768 		ret = -ENODEV;
769 		goto out;
770 	}
771 
772 	lun_p = core_dev_add_lun(se_tpg, dev->se_hba, dev,
773 				lun->unpacked_lun);
774 	if (IS_ERR(lun_p) || !lun_p) {
775 		pr_err("core_dev_add_lun() failed\n");
776 		ret = -EINVAL;
777 		goto out;
778 	}
779 
780 	if (tf->tf_ops.fabric_post_link) {
781 		/*
782 		 * Call the optional fabric_post_link() to allow a
783 		 * fabric module to setup any additional state once
784 		 * core_dev_add_lun() has been called..
785 		 */
786 		tf->tf_ops.fabric_post_link(se_tpg, lun);
787 	}
788 
789 	return 0;
790 out:
791 	return ret;
792 }
793 
794 static int target_fabric_port_unlink(
795 	struct config_item *lun_ci,
796 	struct config_item *se_dev_ci)
797 {
798 	struct se_lun *lun = container_of(to_config_group(lun_ci),
799 				struct se_lun, lun_group);
800 	struct se_portal_group *se_tpg = lun->lun_sep->sep_tpg;
801 	struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
802 
803 	if (tf->tf_ops.fabric_pre_unlink) {
804 		/*
805 		 * Call the optional fabric_pre_unlink() to allow a
806 		 * fabric module to release any additional stat before
807 		 * core_dev_del_lun() is called.
808 		*/
809 		tf->tf_ops.fabric_pre_unlink(se_tpg, lun);
810 	}
811 
812 	core_dev_del_lun(se_tpg, lun->unpacked_lun);
813 	return 0;
814 }
815 
816 static struct configfs_item_operations target_fabric_port_item_ops = {
817 	.show_attribute		= target_fabric_port_attr_show,
818 	.store_attribute	= target_fabric_port_attr_store,
819 	.allow_link		= target_fabric_port_link,
820 	.drop_link		= target_fabric_port_unlink,
821 };
822 
823 TF_CIT_SETUP(tpg_port, &target_fabric_port_item_ops, NULL, target_fabric_port_attrs);
824 
825 /* End of tfc_tpg_port_cit */
826 
827 /* Start of tfc_tpg_port_stat_cit */
828 
829 static struct config_group *target_core_port_stat_mkdir(
830 	struct config_group *group,
831 	const char *name)
832 {
833 	return ERR_PTR(-ENOSYS);
834 }
835 
836 static void target_core_port_stat_rmdir(
837 	struct config_group *group,
838 	struct config_item *item)
839 {
840 	return;
841 }
842 
843 static struct configfs_group_operations target_fabric_port_stat_group_ops = {
844 	.make_group		= target_core_port_stat_mkdir,
845 	.drop_item		= target_core_port_stat_rmdir,
846 };
847 
848 TF_CIT_SETUP(tpg_port_stat, NULL, &target_fabric_port_stat_group_ops, NULL);
849 
850 /* End of tfc_tpg_port_stat_cit */
851 
852 /* Start of tfc_tpg_lun_cit */
853 
854 static struct config_group *target_fabric_make_lun(
855 	struct config_group *group,
856 	const char *name)
857 {
858 	struct se_lun *lun;
859 	struct se_portal_group *se_tpg = container_of(group,
860 			struct se_portal_group, tpg_lun_group);
861 	struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
862 	struct config_group *lun_cg = NULL, *port_stat_grp = NULL;
863 	unsigned long unpacked_lun;
864 	int errno;
865 
866 	if (strstr(name, "lun_") != name) {
867 		pr_err("Unable to locate \'_\" in"
868 				" \"lun_$LUN_NUMBER\"\n");
869 		return ERR_PTR(-EINVAL);
870 	}
871 	if (strict_strtoul(name + 4, 0, &unpacked_lun) || unpacked_lun > UINT_MAX)
872 		return ERR_PTR(-EINVAL);
873 
874 	lun = core_get_lun_from_tpg(se_tpg, unpacked_lun);
875 	if (!lun)
876 		return ERR_PTR(-EINVAL);
877 
878 	lun_cg = &lun->lun_group;
879 	lun_cg->default_groups = kzalloc(sizeof(struct config_group) * 2,
880 				GFP_KERNEL);
881 	if (!lun_cg->default_groups) {
882 		pr_err("Unable to allocate lun_cg->default_groups\n");
883 		return ERR_PTR(-ENOMEM);
884 	}
885 
886 	config_group_init_type_name(&lun->lun_group, name,
887 			&TF_CIT_TMPL(tf)->tfc_tpg_port_cit);
888 	config_group_init_type_name(&lun->port_stat_grps.stat_group,
889 			"statistics", &TF_CIT_TMPL(tf)->tfc_tpg_port_stat_cit);
890 	lun_cg->default_groups[0] = &lun->port_stat_grps.stat_group;
891 	lun_cg->default_groups[1] = NULL;
892 
893 	port_stat_grp = &lun->port_stat_grps.stat_group;
894 	port_stat_grp->default_groups =  kzalloc(sizeof(struct config_group) * 3,
895 				GFP_KERNEL);
896 	if (!port_stat_grp->default_groups) {
897 		pr_err("Unable to allocate port_stat_grp->default_groups\n");
898 		errno = -ENOMEM;
899 		goto out;
900 	}
901 	target_stat_setup_port_default_groups(lun);
902 
903 	return &lun->lun_group;
904 out:
905 	if (lun_cg)
906 		kfree(lun_cg->default_groups);
907 	return ERR_PTR(errno);
908 }
909 
910 static void target_fabric_drop_lun(
911 	struct config_group *group,
912 	struct config_item *item)
913 {
914 	struct se_lun *lun = container_of(to_config_group(item),
915 				struct se_lun, lun_group);
916 	struct config_item *df_item;
917 	struct config_group *lun_cg, *port_stat_grp;
918 	int i;
919 
920 	port_stat_grp = &lun->port_stat_grps.stat_group;
921 	for (i = 0; port_stat_grp->default_groups[i]; i++) {
922 		df_item = &port_stat_grp->default_groups[i]->cg_item;
923 		port_stat_grp->default_groups[i] = NULL;
924 		config_item_put(df_item);
925 	}
926 	kfree(port_stat_grp->default_groups);
927 
928 	lun_cg = &lun->lun_group;
929 	for (i = 0; lun_cg->default_groups[i]; i++) {
930 		df_item = &lun_cg->default_groups[i]->cg_item;
931 		lun_cg->default_groups[i] = NULL;
932 		config_item_put(df_item);
933 	}
934 	kfree(lun_cg->default_groups);
935 
936 	config_item_put(item);
937 }
938 
939 static struct configfs_group_operations target_fabric_lun_group_ops = {
940 	.make_group	= &target_fabric_make_lun,
941 	.drop_item	= &target_fabric_drop_lun,
942 };
943 
944 TF_CIT_SETUP(tpg_lun, NULL, &target_fabric_lun_group_ops, NULL);
945 
946 /* End of tfc_tpg_lun_cit */
947 
948 /* Start of tfc_tpg_attrib_cit */
949 
950 CONFIGFS_EATTR_OPS(target_fabric_tpg_attrib, se_portal_group, tpg_attrib_group);
951 
952 static struct configfs_item_operations target_fabric_tpg_attrib_item_ops = {
953 	.show_attribute		= target_fabric_tpg_attrib_attr_show,
954 	.store_attribute	= target_fabric_tpg_attrib_attr_store,
955 };
956 
957 TF_CIT_SETUP(tpg_attrib, &target_fabric_tpg_attrib_item_ops, NULL, NULL);
958 
959 /* End of tfc_tpg_attrib_cit */
960 
961 /* Start of tfc_tpg_param_cit */
962 
963 CONFIGFS_EATTR_OPS(target_fabric_tpg_param, se_portal_group, tpg_param_group);
964 
965 static struct configfs_item_operations target_fabric_tpg_param_item_ops = {
966 	.show_attribute		= target_fabric_tpg_param_attr_show,
967 	.store_attribute	= target_fabric_tpg_param_attr_store,
968 };
969 
970 TF_CIT_SETUP(tpg_param, &target_fabric_tpg_param_item_ops, NULL, NULL);
971 
972 /* End of tfc_tpg_param_cit */
973 
974 /* Start of tfc_tpg_base_cit */
975 /*
976  * For use with TF_TPG_ATTR() and TF_TPG_ATTR_RO()
977  */
978 CONFIGFS_EATTR_OPS(target_fabric_tpg, se_portal_group, tpg_group);
979 
980 static void target_fabric_tpg_release(struct config_item *item)
981 {
982 	struct se_portal_group *se_tpg = container_of(to_config_group(item),
983 			struct se_portal_group, tpg_group);
984 	struct se_wwn *wwn = se_tpg->se_tpg_wwn;
985 	struct target_fabric_configfs *tf = wwn->wwn_tf;
986 
987 	tf->tf_ops.fabric_drop_tpg(se_tpg);
988 }
989 
990 static struct configfs_item_operations target_fabric_tpg_base_item_ops = {
991 	.release		= target_fabric_tpg_release,
992 	.show_attribute		= target_fabric_tpg_attr_show,
993 	.store_attribute	= target_fabric_tpg_attr_store,
994 };
995 
996 TF_CIT_SETUP(tpg_base, &target_fabric_tpg_base_item_ops, NULL, NULL);
997 
998 /* End of tfc_tpg_base_cit */
999 
1000 /* Start of tfc_tpg_cit */
1001 
1002 static struct config_group *target_fabric_make_tpg(
1003 	struct config_group *group,
1004 	const char *name)
1005 {
1006 	struct se_wwn *wwn = container_of(group, struct se_wwn, wwn_group);
1007 	struct target_fabric_configfs *tf = wwn->wwn_tf;
1008 	struct se_portal_group *se_tpg;
1009 
1010 	if (!tf->tf_ops.fabric_make_tpg) {
1011 		pr_err("tf->tf_ops.fabric_make_tpg is NULL\n");
1012 		return ERR_PTR(-ENOSYS);
1013 	}
1014 
1015 	se_tpg = tf->tf_ops.fabric_make_tpg(wwn, group, name);
1016 	if (!se_tpg || IS_ERR(se_tpg))
1017 		return ERR_PTR(-EINVAL);
1018 	/*
1019 	 * Setup default groups from pre-allocated se_tpg->tpg_default_groups
1020 	 */
1021 	se_tpg->tpg_group.default_groups = se_tpg->tpg_default_groups;
1022 	se_tpg->tpg_group.default_groups[0] = &se_tpg->tpg_lun_group;
1023 	se_tpg->tpg_group.default_groups[1] = &se_tpg->tpg_np_group;
1024 	se_tpg->tpg_group.default_groups[2] = &se_tpg->tpg_acl_group;
1025 	se_tpg->tpg_group.default_groups[3] = &se_tpg->tpg_attrib_group;
1026 	se_tpg->tpg_group.default_groups[4] = &se_tpg->tpg_param_group;
1027 	se_tpg->tpg_group.default_groups[5] = NULL;
1028 
1029 	config_group_init_type_name(&se_tpg->tpg_group, name,
1030 			&TF_CIT_TMPL(tf)->tfc_tpg_base_cit);
1031 	config_group_init_type_name(&se_tpg->tpg_lun_group, "lun",
1032 			&TF_CIT_TMPL(tf)->tfc_tpg_lun_cit);
1033 	config_group_init_type_name(&se_tpg->tpg_np_group, "np",
1034 			&TF_CIT_TMPL(tf)->tfc_tpg_np_cit);
1035 	config_group_init_type_name(&se_tpg->tpg_acl_group, "acls",
1036 			&TF_CIT_TMPL(tf)->tfc_tpg_nacl_cit);
1037 	config_group_init_type_name(&se_tpg->tpg_attrib_group, "attrib",
1038 			&TF_CIT_TMPL(tf)->tfc_tpg_attrib_cit);
1039 	config_group_init_type_name(&se_tpg->tpg_param_group, "param",
1040 			&TF_CIT_TMPL(tf)->tfc_tpg_param_cit);
1041 
1042 	return &se_tpg->tpg_group;
1043 }
1044 
1045 static void target_fabric_drop_tpg(
1046 	struct config_group *group,
1047 	struct config_item *item)
1048 {
1049 	struct se_portal_group *se_tpg = container_of(to_config_group(item),
1050 				struct se_portal_group, tpg_group);
1051 	struct config_group *tpg_cg = &se_tpg->tpg_group;
1052 	struct config_item *df_item;
1053 	int i;
1054 	/*
1055 	 * Release default groups, but do not release tpg_cg->default_groups
1056 	 * memory as it is statically allocated at se_tpg->tpg_default_groups.
1057 	 */
1058 	for (i = 0; tpg_cg->default_groups[i]; i++) {
1059 		df_item = &tpg_cg->default_groups[i]->cg_item;
1060 		tpg_cg->default_groups[i] = NULL;
1061 		config_item_put(df_item);
1062 	}
1063 
1064 	config_item_put(item);
1065 }
1066 
1067 static void target_fabric_release_wwn(struct config_item *item)
1068 {
1069 	struct se_wwn *wwn = container_of(to_config_group(item),
1070 				struct se_wwn, wwn_group);
1071 	struct target_fabric_configfs *tf = wwn->wwn_tf;
1072 
1073 	tf->tf_ops.fabric_drop_wwn(wwn);
1074 }
1075 
1076 static struct configfs_item_operations target_fabric_tpg_item_ops = {
1077 	.release	= target_fabric_release_wwn,
1078 };
1079 
1080 static struct configfs_group_operations target_fabric_tpg_group_ops = {
1081 	.make_group	= target_fabric_make_tpg,
1082 	.drop_item	= target_fabric_drop_tpg,
1083 };
1084 
1085 TF_CIT_SETUP(tpg, &target_fabric_tpg_item_ops, &target_fabric_tpg_group_ops,
1086 		NULL);
1087 
1088 /* End of tfc_tpg_cit */
1089 
1090 /* Start of tfc_wwn_fabric_stats_cit */
1091 /*
1092  * This is used as a placeholder for struct se_wwn->fabric_stat_group
1093  * to allow fabrics access to ->fabric_stat_group->default_groups[]
1094  */
1095 TF_CIT_SETUP(wwn_fabric_stats, NULL, NULL, NULL);
1096 
1097 /* End of tfc_wwn_fabric_stats_cit */
1098 
1099 /* Start of tfc_wwn_cit */
1100 
1101 static struct config_group *target_fabric_make_wwn(
1102 	struct config_group *group,
1103 	const char *name)
1104 {
1105 	struct target_fabric_configfs *tf = container_of(group,
1106 				struct target_fabric_configfs, tf_group);
1107 	struct se_wwn *wwn;
1108 
1109 	if (!tf->tf_ops.fabric_make_wwn) {
1110 		pr_err("tf->tf_ops.fabric_make_wwn is NULL\n");
1111 		return ERR_PTR(-ENOSYS);
1112 	}
1113 
1114 	wwn = tf->tf_ops.fabric_make_wwn(tf, group, name);
1115 	if (!wwn || IS_ERR(wwn))
1116 		return ERR_PTR(-EINVAL);
1117 
1118 	wwn->wwn_tf = tf;
1119 	/*
1120 	 * Setup default groups from pre-allocated wwn->wwn_default_groups
1121 	 */
1122 	wwn->wwn_group.default_groups = wwn->wwn_default_groups;
1123 	wwn->wwn_group.default_groups[0] = &wwn->fabric_stat_group;
1124 	wwn->wwn_group.default_groups[1] = NULL;
1125 
1126 	config_group_init_type_name(&wwn->wwn_group, name,
1127 			&TF_CIT_TMPL(tf)->tfc_tpg_cit);
1128 	config_group_init_type_name(&wwn->fabric_stat_group, "fabric_statistics",
1129 			&TF_CIT_TMPL(tf)->tfc_wwn_fabric_stats_cit);
1130 
1131 	return &wwn->wwn_group;
1132 }
1133 
1134 static void target_fabric_drop_wwn(
1135 	struct config_group *group,
1136 	struct config_item *item)
1137 {
1138 	struct se_wwn *wwn = container_of(to_config_group(item),
1139 				struct se_wwn, wwn_group);
1140 	struct config_item *df_item;
1141 	struct config_group *cg = &wwn->wwn_group;
1142 	int i;
1143 
1144 	for (i = 0; cg->default_groups[i]; i++) {
1145 		df_item = &cg->default_groups[i]->cg_item;
1146 		cg->default_groups[i] = NULL;
1147 		config_item_put(df_item);
1148 	}
1149 
1150 	config_item_put(item);
1151 }
1152 
1153 static struct configfs_group_operations target_fabric_wwn_group_ops = {
1154 	.make_group	= target_fabric_make_wwn,
1155 	.drop_item	= target_fabric_drop_wwn,
1156 };
1157 /*
1158  * For use with TF_WWN_ATTR() and TF_WWN_ATTR_RO()
1159  */
1160 CONFIGFS_EATTR_OPS(target_fabric_wwn, target_fabric_configfs, tf_group);
1161 
1162 static struct configfs_item_operations target_fabric_wwn_item_ops = {
1163 	.show_attribute		= target_fabric_wwn_attr_show,
1164 	.store_attribute	= target_fabric_wwn_attr_store,
1165 };
1166 
1167 TF_CIT_SETUP(wwn, &target_fabric_wwn_item_ops, &target_fabric_wwn_group_ops, NULL);
1168 
1169 /* End of tfc_wwn_cit */
1170 
1171 /* Start of tfc_discovery_cit */
1172 
1173 CONFIGFS_EATTR_OPS(target_fabric_discovery, target_fabric_configfs,
1174 		tf_disc_group);
1175 
1176 static struct configfs_item_operations target_fabric_discovery_item_ops = {
1177 	.show_attribute		= target_fabric_discovery_attr_show,
1178 	.store_attribute	= target_fabric_discovery_attr_store,
1179 };
1180 
1181 TF_CIT_SETUP(discovery, &target_fabric_discovery_item_ops, NULL, NULL);
1182 
1183 /* End of tfc_discovery_cit */
1184 
1185 int target_fabric_setup_cits(struct target_fabric_configfs *tf)
1186 {
1187 	target_fabric_setup_discovery_cit(tf);
1188 	target_fabric_setup_wwn_cit(tf);
1189 	target_fabric_setup_wwn_fabric_stats_cit(tf);
1190 	target_fabric_setup_tpg_cit(tf);
1191 	target_fabric_setup_tpg_base_cit(tf);
1192 	target_fabric_setup_tpg_port_cit(tf);
1193 	target_fabric_setup_tpg_port_stat_cit(tf);
1194 	target_fabric_setup_tpg_lun_cit(tf);
1195 	target_fabric_setup_tpg_np_cit(tf);
1196 	target_fabric_setup_tpg_np_base_cit(tf);
1197 	target_fabric_setup_tpg_attrib_cit(tf);
1198 	target_fabric_setup_tpg_param_cit(tf);
1199 	target_fabric_setup_tpg_nacl_cit(tf);
1200 	target_fabric_setup_tpg_nacl_base_cit(tf);
1201 	target_fabric_setup_tpg_nacl_attrib_cit(tf);
1202 	target_fabric_setup_tpg_nacl_auth_cit(tf);
1203 	target_fabric_setup_tpg_nacl_param_cit(tf);
1204 	target_fabric_setup_tpg_nacl_stat_cit(tf);
1205 	target_fabric_setup_tpg_mappedlun_cit(tf);
1206 	target_fabric_setup_tpg_mappedlun_stat_cit(tf);
1207 
1208 	return 0;
1209 }
1210