drivers/target/target_core_fabric_configfs.c

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