Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 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 | * |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 7 | * Copyright (c) 2010,2011 Rising Tide Systems |
| 8 | * Copyright (c) 2010,2011 Linux-iSCSI.org |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 9 | * |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 10 | * Copyright (c) Nicholas A. Bellinger <nab@linux-iscsi.org> |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 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" |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 51 | #include "target_core_stat.h" |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 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 | printk("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 | printk(KERN_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_$TPGT |
| 97 | */ |
| 98 | if (strcmp(config_item_name(wwn_ci), config_item_name(wwn_ci_s))) { |
| 99 | printk(KERN_ERR "Illegal Initiator ACL SymLink outside of %s\n", |
| 100 | config_item_name(wwn_ci)); |
| 101 | return -EINVAL; |
| 102 | } |
| 103 | if (strcmp(config_item_name(tpg_ci), config_item_name(tpg_ci_s))) { |
| 104 | printk(KERN_ERR "Illegal Initiator ACL Symlink outside of %s" |
| 105 | " TPGT: %s\n", config_item_name(wwn_ci), |
| 106 | config_item_name(tpg_ci)); |
| 107 | return -EINVAL; |
| 108 | } |
| 109 | /* |
| 110 | * If this struct se_node_acl was dynamically generated with |
| 111 | * tpg_1/attrib/generate_node_acls=1, use the existing deve->lun_flags, |
| 112 | * which be will write protected (READ-ONLY) when |
| 113 | * tpg_1/attrib/demo_mode_write_protect=1 |
| 114 | */ |
| 115 | spin_lock_irq(&lacl->se_lun_nacl->device_list_lock); |
| 116 | deve = &lacl->se_lun_nacl->device_list[lacl->mapped_lun]; |
| 117 | if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) |
| 118 | lun_access = deve->lun_flags; |
| 119 | else |
| 120 | lun_access = |
| 121 | (TPG_TFO(se_tpg)->tpg_check_prod_mode_write_protect( |
| 122 | se_tpg)) ? TRANSPORT_LUNFLAGS_READ_ONLY : |
| 123 | TRANSPORT_LUNFLAGS_READ_WRITE; |
| 124 | spin_unlock_irq(&lacl->se_lun_nacl->device_list_lock); |
| 125 | /* |
| 126 | * Determine the actual mapped LUN value user wants.. |
| 127 | * |
| 128 | * This value is what the SCSI Initiator actually sees the |
| 129 | * iscsi/$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 | printk(KERN_INFO "%s_ConfigFS: Changed Initiator ACL: %s" |
| 206 | " Mapped LUN: %u Write Protect bit to %s\n", |
| 207 | TPG_TFO(se_tpg)->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 | |
Nicholas Bellinger | 1f6fe7c | 2011-02-09 15:34:54 -0800 | [diff] [blame] | 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 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 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 = { |
Nicholas Bellinger | 1f6fe7c | 2011-02-09 15:34:54 -0800 | [diff] [blame] | 233 | .release = target_fabric_mappedlun_release, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 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 | |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 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 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 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; |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 324 | struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 325 | char *buf; |
| 326 | unsigned long mapped_lun; |
| 327 | int ret = 0; |
| 328 | |
| 329 | acl_ci = &group->cg_item; |
| 330 | if (!(acl_ci)) { |
| 331 | printk(KERN_ERR "Unable to locatel acl_ci\n"); |
| 332 | return NULL; |
| 333 | } |
| 334 | |
| 335 | buf = kzalloc(strlen(name) + 1, GFP_KERNEL); |
| 336 | if (!(buf)) { |
| 337 | printk(KERN_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 | printk(KERN_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); |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 361 | if (!(lacl)) { |
| 362 | ret = -EINVAL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 363 | goto out; |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 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 | printk(KERN_ERR "Unable to allocate lacl_cg->default_groups\n"); |
| 371 | ret = -ENOMEM; |
| 372 | goto out; |
| 373 | } |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 374 | |
| 375 | config_group_init_type_name(&lacl->se_lun_group, name, |
| 376 | &TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_cit); |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 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 = &ML_STAT_GRPS(lacl)->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 | printk(KERN_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); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 391 | |
| 392 | kfree(buf); |
| 393 | return &lacl->se_lun_group; |
| 394 | out: |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 395 | if (lacl_cg) |
| 396 | kfree(lacl_cg->default_groups); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 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 | { |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 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 = &ML_STAT_GRPS(lacl)->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 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 427 | config_item_put(item); |
Nicholas Bellinger | 1f6fe7c | 2011-02-09 15:34:54 -0800 | [diff] [blame] | 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); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 438 | } |
| 439 | |
| 440 | static struct configfs_item_operations target_fabric_nacl_base_item_ops = { |
Nicholas Bellinger | 1f6fe7c | 2011-02-09 15:34:54 -0800 | [diff] [blame] | 441 | .release = target_fabric_nacl_base_release, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 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 | |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 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 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 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 | printk(KERN_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; |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 491 | nacl_cg->default_groups[3] = &se_nacl->acl_fabric_stat_group; |
| 492 | nacl_cg->default_groups[4] = NULL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 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); |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 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); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 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 | { |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 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 | } |
Nicholas Bellinger | 1f6fe7c | 2011-02-09 15:34:54 -0800 | [diff] [blame] | 525 | /* |
| 526 | * struct se_node_acl free is done in target_fabric_nacl_base_release() |
| 527 | */ |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 528 | config_item_put(item); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 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 | |
Nicholas Bellinger | 1f6fe7c | 2011-02-09 15:34:54 -0800 | [diff] [blame] | 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 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 554 | static struct configfs_item_operations target_fabric_np_base_item_ops = { |
Nicholas Bellinger | 1f6fe7c | 2011-02-09 15:34:54 -0800 | [diff] [blame] | 555 | .release = target_fabric_np_base_release, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 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 | printk(KERN_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 | |
Nicholas Bellinger | 1f6fe7c | 2011-02-09 15:34:54 -0800 | [diff] [blame] | 584 | se_tpg_np->tpg_np_parent = se_tpg; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 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 | { |
Nicholas Bellinger | 1f6fe7c | 2011-02-09 15:34:54 -0800 | [diff] [blame] | 595 | /* |
| 596 | * struct se_tpg_np is released via target_fabric_np_base_release() |
| 597 | */ |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 598 | config_item_put(item); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 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)) |
| 631 | return -ENODEV; |
| 632 | |
| 633 | if (!(lun->lun_sep)) |
| 634 | return -ENODEV; |
| 635 | |
| 636 | return core_alua_show_tg_pt_gp_info(lun->lun_sep, page); |
| 637 | } |
| 638 | |
| 639 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_gp( |
| 640 | struct se_lun *lun, |
| 641 | const char *page, |
| 642 | size_t count) |
| 643 | { |
| 644 | if (!(lun)) |
| 645 | return -ENODEV; |
| 646 | |
| 647 | if (!(lun->lun_sep)) |
| 648 | return -ENODEV; |
| 649 | |
| 650 | return core_alua_store_tg_pt_gp_info(lun->lun_sep, page, count); |
| 651 | } |
| 652 | |
| 653 | TCM_PORT_ATTR(alua_tg_pt_gp, S_IRUGO | S_IWUSR); |
| 654 | |
| 655 | /* |
| 656 | * alua_tg_pt_offline |
| 657 | */ |
| 658 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_offline( |
| 659 | struct se_lun *lun, |
| 660 | char *page) |
| 661 | { |
| 662 | if (!(lun)) |
| 663 | return -ENODEV; |
| 664 | |
| 665 | if (!(lun->lun_sep)) |
| 666 | return -ENODEV; |
| 667 | |
| 668 | return core_alua_show_offline_bit(lun, page); |
| 669 | } |
| 670 | |
| 671 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_offline( |
| 672 | struct se_lun *lun, |
| 673 | const char *page, |
| 674 | size_t count) |
| 675 | { |
| 676 | if (!(lun)) |
| 677 | return -ENODEV; |
| 678 | |
| 679 | if (!(lun->lun_sep)) |
| 680 | return -ENODEV; |
| 681 | |
| 682 | return core_alua_store_offline_bit(lun, page, count); |
| 683 | } |
| 684 | |
| 685 | TCM_PORT_ATTR(alua_tg_pt_offline, S_IRUGO | S_IWUSR); |
| 686 | |
| 687 | /* |
| 688 | * alua_tg_pt_status |
| 689 | */ |
| 690 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_status( |
| 691 | struct se_lun *lun, |
| 692 | char *page) |
| 693 | { |
| 694 | if (!(lun)) |
| 695 | return -ENODEV; |
| 696 | |
| 697 | if (!(lun->lun_sep)) |
| 698 | return -ENODEV; |
| 699 | |
| 700 | return core_alua_show_secondary_status(lun, page); |
| 701 | } |
| 702 | |
| 703 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_status( |
| 704 | struct se_lun *lun, |
| 705 | const char *page, |
| 706 | size_t count) |
| 707 | { |
| 708 | if (!(lun)) |
| 709 | return -ENODEV; |
| 710 | |
| 711 | if (!(lun->lun_sep)) |
| 712 | return -ENODEV; |
| 713 | |
| 714 | return core_alua_store_secondary_status(lun, page, count); |
| 715 | } |
| 716 | |
| 717 | TCM_PORT_ATTR(alua_tg_pt_status, S_IRUGO | S_IWUSR); |
| 718 | |
| 719 | /* |
| 720 | * alua_tg_pt_write_md |
| 721 | */ |
| 722 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_write_md( |
| 723 | struct se_lun *lun, |
| 724 | char *page) |
| 725 | { |
| 726 | if (!(lun)) |
| 727 | return -ENODEV; |
| 728 | |
| 729 | if (!(lun->lun_sep)) |
| 730 | return -ENODEV; |
| 731 | |
| 732 | return core_alua_show_secondary_write_metadata(lun, page); |
| 733 | } |
| 734 | |
| 735 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_write_md( |
| 736 | struct se_lun *lun, |
| 737 | const char *page, |
| 738 | size_t count) |
| 739 | { |
| 740 | if (!(lun)) |
| 741 | return -ENODEV; |
| 742 | |
| 743 | if (!(lun->lun_sep)) |
| 744 | return -ENODEV; |
| 745 | |
| 746 | return core_alua_store_secondary_write_metadata(lun, page, count); |
| 747 | } |
| 748 | |
| 749 | TCM_PORT_ATTR(alua_tg_pt_write_md, S_IRUGO | S_IWUSR); |
| 750 | |
| 751 | |
| 752 | static struct configfs_attribute *target_fabric_port_attrs[] = { |
| 753 | &target_fabric_port_alua_tg_pt_gp.attr, |
| 754 | &target_fabric_port_alua_tg_pt_offline.attr, |
| 755 | &target_fabric_port_alua_tg_pt_status.attr, |
| 756 | &target_fabric_port_alua_tg_pt_write_md.attr, |
| 757 | NULL, |
| 758 | }; |
| 759 | |
| 760 | CONFIGFS_EATTR_OPS(target_fabric_port, se_lun, lun_group); |
| 761 | |
| 762 | static int target_fabric_port_link( |
| 763 | struct config_item *lun_ci, |
| 764 | struct config_item *se_dev_ci) |
| 765 | { |
| 766 | struct config_item *tpg_ci; |
| 767 | struct se_device *dev; |
| 768 | struct se_lun *lun = container_of(to_config_group(lun_ci), |
| 769 | struct se_lun, lun_group); |
| 770 | struct se_lun *lun_p; |
| 771 | struct se_portal_group *se_tpg; |
| 772 | struct se_subsystem_dev *se_dev = container_of( |
| 773 | to_config_group(se_dev_ci), struct se_subsystem_dev, |
| 774 | se_dev_group); |
| 775 | struct target_fabric_configfs *tf; |
| 776 | int ret; |
| 777 | |
| 778 | tpg_ci = &lun_ci->ci_parent->ci_group->cg_item; |
| 779 | se_tpg = container_of(to_config_group(tpg_ci), |
| 780 | struct se_portal_group, tpg_group); |
| 781 | tf = se_tpg->se_tpg_wwn->wwn_tf; |
| 782 | |
| 783 | if (lun->lun_se_dev != NULL) { |
| 784 | printk(KERN_ERR "Port Symlink already exists\n"); |
| 785 | return -EEXIST; |
| 786 | } |
| 787 | |
| 788 | dev = se_dev->se_dev_ptr; |
| 789 | if (!(dev)) { |
| 790 | printk(KERN_ERR "Unable to locate struct se_device pointer from" |
| 791 | " %s\n", config_item_name(se_dev_ci)); |
| 792 | ret = -ENODEV; |
| 793 | goto out; |
| 794 | } |
| 795 | |
| 796 | lun_p = core_dev_add_lun(se_tpg, dev->se_hba, dev, |
| 797 | lun->unpacked_lun); |
| 798 | if ((IS_ERR(lun_p)) || !(lun_p)) { |
| 799 | printk(KERN_ERR "core_dev_add_lun() failed\n"); |
| 800 | ret = -EINVAL; |
| 801 | goto out; |
| 802 | } |
| 803 | |
| 804 | if (tf->tf_ops.fabric_post_link) { |
| 805 | /* |
| 806 | * Call the optional fabric_post_link() to allow a |
| 807 | * fabric module to setup any additional state once |
| 808 | * core_dev_add_lun() has been called.. |
| 809 | */ |
| 810 | tf->tf_ops.fabric_post_link(se_tpg, lun); |
| 811 | } |
| 812 | |
| 813 | return 0; |
| 814 | out: |
| 815 | return ret; |
| 816 | } |
| 817 | |
| 818 | static int target_fabric_port_unlink( |
| 819 | struct config_item *lun_ci, |
| 820 | struct config_item *se_dev_ci) |
| 821 | { |
| 822 | struct se_lun *lun = container_of(to_config_group(lun_ci), |
| 823 | struct se_lun, lun_group); |
| 824 | struct se_portal_group *se_tpg = lun->lun_sep->sep_tpg; |
| 825 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; |
| 826 | |
| 827 | if (tf->tf_ops.fabric_pre_unlink) { |
| 828 | /* |
| 829 | * Call the optional fabric_pre_unlink() to allow a |
| 830 | * fabric module to release any additional stat before |
| 831 | * core_dev_del_lun() is called. |
| 832 | */ |
| 833 | tf->tf_ops.fabric_pre_unlink(se_tpg, lun); |
| 834 | } |
| 835 | |
| 836 | core_dev_del_lun(se_tpg, lun->unpacked_lun); |
| 837 | return 0; |
| 838 | } |
| 839 | |
| 840 | static struct configfs_item_operations target_fabric_port_item_ops = { |
| 841 | .show_attribute = target_fabric_port_attr_show, |
| 842 | .store_attribute = target_fabric_port_attr_store, |
| 843 | .allow_link = target_fabric_port_link, |
| 844 | .drop_link = target_fabric_port_unlink, |
| 845 | }; |
| 846 | |
| 847 | TF_CIT_SETUP(tpg_port, &target_fabric_port_item_ops, NULL, target_fabric_port_attrs); |
| 848 | |
| 849 | /* End of tfc_tpg_port_cit */ |
| 850 | |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 851 | /* Start of tfc_tpg_port_stat_cit */ |
| 852 | |
| 853 | static struct config_group *target_core_port_stat_mkdir( |
| 854 | struct config_group *group, |
| 855 | const char *name) |
| 856 | { |
| 857 | return ERR_PTR(-ENOSYS); |
| 858 | } |
| 859 | |
| 860 | static void target_core_port_stat_rmdir( |
| 861 | struct config_group *group, |
| 862 | struct config_item *item) |
| 863 | { |
| 864 | return; |
| 865 | } |
| 866 | |
| 867 | static struct configfs_group_operations target_fabric_port_stat_group_ops = { |
| 868 | .make_group = target_core_port_stat_mkdir, |
| 869 | .drop_item = target_core_port_stat_rmdir, |
| 870 | }; |
| 871 | |
| 872 | TF_CIT_SETUP(tpg_port_stat, NULL, &target_fabric_port_stat_group_ops, NULL); |
| 873 | |
| 874 | /* End of tfc_tpg_port_stat_cit */ |
| 875 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 876 | /* Start of tfc_tpg_lun_cit */ |
| 877 | |
| 878 | static struct config_group *target_fabric_make_lun( |
| 879 | struct config_group *group, |
| 880 | const char *name) |
| 881 | { |
| 882 | struct se_lun *lun; |
| 883 | struct se_portal_group *se_tpg = container_of(group, |
| 884 | struct se_portal_group, tpg_lun_group); |
| 885 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 886 | struct config_group *lun_cg = NULL, *port_stat_grp = NULL; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 887 | unsigned long unpacked_lun; |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 888 | int errno; |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 889 | |
| 890 | if (strstr(name, "lun_") != name) { |
| 891 | printk(KERN_ERR "Unable to locate \'_\" in" |
| 892 | " \"lun_$LUN_NUMBER\"\n"); |
| 893 | return ERR_PTR(-EINVAL); |
| 894 | } |
| 895 | if (strict_strtoul(name + 4, 0, &unpacked_lun) || unpacked_lun > UINT_MAX) |
| 896 | return ERR_PTR(-EINVAL); |
| 897 | |
| 898 | lun = core_get_lun_from_tpg(se_tpg, unpacked_lun); |
| 899 | if (!(lun)) |
| 900 | return ERR_PTR(-EINVAL); |
| 901 | |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 902 | lun_cg = &lun->lun_group; |
| 903 | lun_cg->default_groups = kzalloc(sizeof(struct config_group) * 2, |
| 904 | GFP_KERNEL); |
| 905 | if (!lun_cg->default_groups) { |
| 906 | printk(KERN_ERR "Unable to allocate lun_cg->default_groups\n"); |
| 907 | return ERR_PTR(-ENOMEM); |
| 908 | } |
| 909 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 910 | config_group_init_type_name(&lun->lun_group, name, |
| 911 | &TF_CIT_TMPL(tf)->tfc_tpg_port_cit); |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 912 | config_group_init_type_name(&lun->port_stat_grps.stat_group, |
| 913 | "statistics", &TF_CIT_TMPL(tf)->tfc_tpg_port_stat_cit); |
| 914 | lun_cg->default_groups[0] = &lun->port_stat_grps.stat_group; |
| 915 | lun_cg->default_groups[1] = NULL; |
| 916 | |
| 917 | port_stat_grp = &PORT_STAT_GRP(lun)->stat_group; |
| 918 | port_stat_grp->default_groups = kzalloc(sizeof(struct config_group) * 3, |
| 919 | GFP_KERNEL); |
| 920 | if (!port_stat_grp->default_groups) { |
| 921 | printk(KERN_ERR "Unable to allocate port_stat_grp->default_groups\n"); |
| 922 | errno = -ENOMEM; |
| 923 | goto out; |
| 924 | } |
| 925 | target_stat_setup_port_default_groups(lun); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 926 | |
| 927 | return &lun->lun_group; |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 928 | out: |
| 929 | if (lun_cg) |
| 930 | kfree(lun_cg->default_groups); |
| 931 | return ERR_PTR(errno); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 932 | } |
| 933 | |
| 934 | static void target_fabric_drop_lun( |
| 935 | struct config_group *group, |
| 936 | struct config_item *item) |
| 937 | { |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 938 | struct se_lun *lun = container_of(to_config_group(item), |
| 939 | struct se_lun, lun_group); |
| 940 | struct config_item *df_item; |
| 941 | struct config_group *lun_cg, *port_stat_grp; |
| 942 | int i; |
| 943 | |
| 944 | port_stat_grp = &PORT_STAT_GRP(lun)->stat_group; |
| 945 | for (i = 0; port_stat_grp->default_groups[i]; i++) { |
| 946 | df_item = &port_stat_grp->default_groups[i]->cg_item; |
| 947 | port_stat_grp->default_groups[i] = NULL; |
| 948 | config_item_put(df_item); |
| 949 | } |
| 950 | kfree(port_stat_grp->default_groups); |
| 951 | |
| 952 | lun_cg = &lun->lun_group; |
| 953 | for (i = 0; lun_cg->default_groups[i]; i++) { |
| 954 | df_item = &lun_cg->default_groups[i]->cg_item; |
| 955 | lun_cg->default_groups[i] = NULL; |
| 956 | config_item_put(df_item); |
| 957 | } |
| 958 | kfree(lun_cg->default_groups); |
| 959 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 960 | config_item_put(item); |
| 961 | } |
| 962 | |
| 963 | static struct configfs_group_operations target_fabric_lun_group_ops = { |
| 964 | .make_group = &target_fabric_make_lun, |
| 965 | .drop_item = &target_fabric_drop_lun, |
| 966 | }; |
| 967 | |
| 968 | TF_CIT_SETUP(tpg_lun, NULL, &target_fabric_lun_group_ops, NULL); |
| 969 | |
| 970 | /* End of tfc_tpg_lun_cit */ |
| 971 | |
| 972 | /* Start of tfc_tpg_attrib_cit */ |
| 973 | |
| 974 | CONFIGFS_EATTR_OPS(target_fabric_tpg_attrib, se_portal_group, tpg_attrib_group); |
| 975 | |
| 976 | static struct configfs_item_operations target_fabric_tpg_attrib_item_ops = { |
| 977 | .show_attribute = target_fabric_tpg_attrib_attr_show, |
| 978 | .store_attribute = target_fabric_tpg_attrib_attr_store, |
| 979 | }; |
| 980 | |
| 981 | TF_CIT_SETUP(tpg_attrib, &target_fabric_tpg_attrib_item_ops, NULL, NULL); |
| 982 | |
| 983 | /* End of tfc_tpg_attrib_cit */ |
| 984 | |
| 985 | /* Start of tfc_tpg_param_cit */ |
| 986 | |
| 987 | CONFIGFS_EATTR_OPS(target_fabric_tpg_param, se_portal_group, tpg_param_group); |
| 988 | |
| 989 | static struct configfs_item_operations target_fabric_tpg_param_item_ops = { |
| 990 | .show_attribute = target_fabric_tpg_param_attr_show, |
| 991 | .store_attribute = target_fabric_tpg_param_attr_store, |
| 992 | }; |
| 993 | |
| 994 | TF_CIT_SETUP(tpg_param, &target_fabric_tpg_param_item_ops, NULL, NULL); |
| 995 | |
| 996 | /* End of tfc_tpg_param_cit */ |
| 997 | |
| 998 | /* Start of tfc_tpg_base_cit */ |
| 999 | /* |
| 1000 | * For use with TF_TPG_ATTR() and TF_TPG_ATTR_RO() |
| 1001 | */ |
| 1002 | CONFIGFS_EATTR_OPS(target_fabric_tpg, se_portal_group, tpg_group); |
| 1003 | |
Nicholas Bellinger | 1f6fe7c | 2011-02-09 15:34:54 -0800 | [diff] [blame] | 1004 | static void target_fabric_tpg_release(struct config_item *item) |
| 1005 | { |
| 1006 | struct se_portal_group *se_tpg = container_of(to_config_group(item), |
| 1007 | struct se_portal_group, tpg_group); |
| 1008 | struct se_wwn *wwn = se_tpg->se_tpg_wwn; |
| 1009 | struct target_fabric_configfs *tf = wwn->wwn_tf; |
| 1010 | |
| 1011 | tf->tf_ops.fabric_drop_tpg(se_tpg); |
| 1012 | } |
| 1013 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1014 | static struct configfs_item_operations target_fabric_tpg_base_item_ops = { |
Nicholas Bellinger | 1f6fe7c | 2011-02-09 15:34:54 -0800 | [diff] [blame] | 1015 | .release = target_fabric_tpg_release, |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1016 | .show_attribute = target_fabric_tpg_attr_show, |
| 1017 | .store_attribute = target_fabric_tpg_attr_store, |
| 1018 | }; |
| 1019 | |
| 1020 | TF_CIT_SETUP(tpg_base, &target_fabric_tpg_base_item_ops, NULL, NULL); |
| 1021 | |
| 1022 | /* End of tfc_tpg_base_cit */ |
| 1023 | |
| 1024 | /* Start of tfc_tpg_cit */ |
| 1025 | |
| 1026 | static struct config_group *target_fabric_make_tpg( |
| 1027 | struct config_group *group, |
| 1028 | const char *name) |
| 1029 | { |
| 1030 | struct se_wwn *wwn = container_of(group, struct se_wwn, wwn_group); |
| 1031 | struct target_fabric_configfs *tf = wwn->wwn_tf; |
| 1032 | struct se_portal_group *se_tpg; |
| 1033 | |
| 1034 | if (!(tf->tf_ops.fabric_make_tpg)) { |
| 1035 | printk(KERN_ERR "tf->tf_ops.fabric_make_tpg is NULL\n"); |
| 1036 | return ERR_PTR(-ENOSYS); |
| 1037 | } |
| 1038 | |
| 1039 | se_tpg = tf->tf_ops.fabric_make_tpg(wwn, group, name); |
| 1040 | if (!(se_tpg) || IS_ERR(se_tpg)) |
| 1041 | return ERR_PTR(-EINVAL); |
| 1042 | /* |
| 1043 | * Setup default groups from pre-allocated se_tpg->tpg_default_groups |
| 1044 | */ |
| 1045 | se_tpg->tpg_group.default_groups = se_tpg->tpg_default_groups; |
| 1046 | se_tpg->tpg_group.default_groups[0] = &se_tpg->tpg_lun_group; |
| 1047 | se_tpg->tpg_group.default_groups[1] = &se_tpg->tpg_np_group; |
| 1048 | se_tpg->tpg_group.default_groups[2] = &se_tpg->tpg_acl_group; |
| 1049 | se_tpg->tpg_group.default_groups[3] = &se_tpg->tpg_attrib_group; |
| 1050 | se_tpg->tpg_group.default_groups[4] = &se_tpg->tpg_param_group; |
| 1051 | se_tpg->tpg_group.default_groups[5] = NULL; |
| 1052 | |
| 1053 | config_group_init_type_name(&se_tpg->tpg_group, name, |
| 1054 | &TF_CIT_TMPL(tf)->tfc_tpg_base_cit); |
| 1055 | config_group_init_type_name(&se_tpg->tpg_lun_group, "lun", |
| 1056 | &TF_CIT_TMPL(tf)->tfc_tpg_lun_cit); |
| 1057 | config_group_init_type_name(&se_tpg->tpg_np_group, "np", |
| 1058 | &TF_CIT_TMPL(tf)->tfc_tpg_np_cit); |
| 1059 | config_group_init_type_name(&se_tpg->tpg_acl_group, "acls", |
| 1060 | &TF_CIT_TMPL(tf)->tfc_tpg_nacl_cit); |
| 1061 | config_group_init_type_name(&se_tpg->tpg_attrib_group, "attrib", |
| 1062 | &TF_CIT_TMPL(tf)->tfc_tpg_attrib_cit); |
| 1063 | config_group_init_type_name(&se_tpg->tpg_param_group, "param", |
| 1064 | &TF_CIT_TMPL(tf)->tfc_tpg_param_cit); |
| 1065 | |
| 1066 | return &se_tpg->tpg_group; |
| 1067 | } |
| 1068 | |
| 1069 | static void target_fabric_drop_tpg( |
| 1070 | struct config_group *group, |
| 1071 | struct config_item *item) |
| 1072 | { |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1073 | struct se_portal_group *se_tpg = container_of(to_config_group(item), |
| 1074 | struct se_portal_group, tpg_group); |
| 1075 | struct config_group *tpg_cg = &se_tpg->tpg_group; |
| 1076 | struct config_item *df_item; |
| 1077 | int i; |
| 1078 | /* |
| 1079 | * Release default groups, but do not release tpg_cg->default_groups |
| 1080 | * memory as it is statically allocated at se_tpg->tpg_default_groups. |
| 1081 | */ |
| 1082 | for (i = 0; tpg_cg->default_groups[i]; i++) { |
| 1083 | df_item = &tpg_cg->default_groups[i]->cg_item; |
| 1084 | tpg_cg->default_groups[i] = NULL; |
| 1085 | config_item_put(df_item); |
| 1086 | } |
| 1087 | |
| 1088 | config_item_put(item); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1089 | } |
| 1090 | |
Nicholas Bellinger | 1f6fe7c | 2011-02-09 15:34:54 -0800 | [diff] [blame] | 1091 | static void target_fabric_release_wwn(struct config_item *item) |
| 1092 | { |
| 1093 | struct se_wwn *wwn = container_of(to_config_group(item), |
| 1094 | struct se_wwn, wwn_group); |
| 1095 | struct target_fabric_configfs *tf = wwn->wwn_tf; |
| 1096 | |
| 1097 | tf->tf_ops.fabric_drop_wwn(wwn); |
| 1098 | } |
| 1099 | |
| 1100 | static struct configfs_item_operations target_fabric_tpg_item_ops = { |
| 1101 | .release = target_fabric_release_wwn, |
| 1102 | }; |
| 1103 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1104 | static struct configfs_group_operations target_fabric_tpg_group_ops = { |
| 1105 | .make_group = target_fabric_make_tpg, |
| 1106 | .drop_item = target_fabric_drop_tpg, |
| 1107 | }; |
| 1108 | |
Nicholas Bellinger | 1f6fe7c | 2011-02-09 15:34:54 -0800 | [diff] [blame] | 1109 | TF_CIT_SETUP(tpg, &target_fabric_tpg_item_ops, &target_fabric_tpg_group_ops, |
| 1110 | NULL); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1111 | |
| 1112 | /* End of tfc_tpg_cit */ |
| 1113 | |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 1114 | /* Start of tfc_wwn_fabric_stats_cit */ |
| 1115 | /* |
| 1116 | * This is used as a placeholder for struct se_wwn->fabric_stat_group |
| 1117 | * to allow fabrics access to ->fabric_stat_group->default_groups[] |
| 1118 | */ |
| 1119 | TF_CIT_SETUP(wwn_fabric_stats, NULL, NULL, NULL); |
| 1120 | |
| 1121 | /* End of tfc_wwn_fabric_stats_cit */ |
| 1122 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1123 | /* Start of tfc_wwn_cit */ |
| 1124 | |
| 1125 | static struct config_group *target_fabric_make_wwn( |
| 1126 | struct config_group *group, |
| 1127 | const char *name) |
| 1128 | { |
| 1129 | struct target_fabric_configfs *tf = container_of(group, |
| 1130 | struct target_fabric_configfs, tf_group); |
| 1131 | struct se_wwn *wwn; |
| 1132 | |
| 1133 | if (!(tf->tf_ops.fabric_make_wwn)) { |
| 1134 | printk(KERN_ERR "tf->tf_ops.fabric_make_wwn is NULL\n"); |
| 1135 | return ERR_PTR(-ENOSYS); |
| 1136 | } |
| 1137 | |
| 1138 | wwn = tf->tf_ops.fabric_make_wwn(tf, group, name); |
| 1139 | if (!(wwn) || IS_ERR(wwn)) |
| 1140 | return ERR_PTR(-EINVAL); |
| 1141 | |
| 1142 | wwn->wwn_tf = tf; |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 1143 | /* |
| 1144 | * Setup default groups from pre-allocated wwn->wwn_default_groups |
| 1145 | */ |
| 1146 | wwn->wwn_group.default_groups = wwn->wwn_default_groups; |
| 1147 | wwn->wwn_group.default_groups[0] = &wwn->fabric_stat_group; |
| 1148 | wwn->wwn_group.default_groups[1] = NULL; |
| 1149 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1150 | config_group_init_type_name(&wwn->wwn_group, name, |
| 1151 | &TF_CIT_TMPL(tf)->tfc_tpg_cit); |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 1152 | config_group_init_type_name(&wwn->fabric_stat_group, "fabric_statistics", |
| 1153 | &TF_CIT_TMPL(tf)->tfc_wwn_fabric_stats_cit); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1154 | |
| 1155 | return &wwn->wwn_group; |
| 1156 | } |
| 1157 | |
| 1158 | static void target_fabric_drop_wwn( |
| 1159 | struct config_group *group, |
| 1160 | struct config_item *item) |
| 1161 | { |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 1162 | struct se_wwn *wwn = container_of(to_config_group(item), |
| 1163 | struct se_wwn, wwn_group); |
| 1164 | struct config_item *df_item; |
| 1165 | struct config_group *cg = &wwn->wwn_group; |
| 1166 | int i; |
| 1167 | |
| 1168 | for (i = 0; cg->default_groups[i]; i++) { |
| 1169 | df_item = &cg->default_groups[i]->cg_item; |
| 1170 | cg->default_groups[i] = NULL; |
| 1171 | config_item_put(df_item); |
| 1172 | } |
| 1173 | |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1174 | config_item_put(item); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1175 | } |
| 1176 | |
| 1177 | static struct configfs_group_operations target_fabric_wwn_group_ops = { |
| 1178 | .make_group = target_fabric_make_wwn, |
| 1179 | .drop_item = target_fabric_drop_wwn, |
| 1180 | }; |
| 1181 | /* |
| 1182 | * For use with TF_WWN_ATTR() and TF_WWN_ATTR_RO() |
| 1183 | */ |
| 1184 | CONFIGFS_EATTR_OPS(target_fabric_wwn, target_fabric_configfs, tf_group); |
| 1185 | |
| 1186 | static struct configfs_item_operations target_fabric_wwn_item_ops = { |
| 1187 | .show_attribute = target_fabric_wwn_attr_show, |
| 1188 | .store_attribute = target_fabric_wwn_attr_store, |
| 1189 | }; |
| 1190 | |
| 1191 | TF_CIT_SETUP(wwn, &target_fabric_wwn_item_ops, &target_fabric_wwn_group_ops, NULL); |
| 1192 | |
| 1193 | /* End of tfc_wwn_cit */ |
| 1194 | |
| 1195 | /* Start of tfc_discovery_cit */ |
| 1196 | |
| 1197 | CONFIGFS_EATTR_OPS(target_fabric_discovery, target_fabric_configfs, |
| 1198 | tf_disc_group); |
| 1199 | |
| 1200 | static struct configfs_item_operations target_fabric_discovery_item_ops = { |
| 1201 | .show_attribute = target_fabric_discovery_attr_show, |
| 1202 | .store_attribute = target_fabric_discovery_attr_store, |
| 1203 | }; |
| 1204 | |
| 1205 | TF_CIT_SETUP(discovery, &target_fabric_discovery_item_ops, NULL, NULL); |
| 1206 | |
| 1207 | /* End of tfc_discovery_cit */ |
| 1208 | |
| 1209 | int target_fabric_setup_cits(struct target_fabric_configfs *tf) |
| 1210 | { |
| 1211 | target_fabric_setup_discovery_cit(tf); |
| 1212 | target_fabric_setup_wwn_cit(tf); |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 1213 | target_fabric_setup_wwn_fabric_stats_cit(tf); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1214 | target_fabric_setup_tpg_cit(tf); |
| 1215 | target_fabric_setup_tpg_base_cit(tf); |
| 1216 | target_fabric_setup_tpg_port_cit(tf); |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 1217 | target_fabric_setup_tpg_port_stat_cit(tf); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1218 | target_fabric_setup_tpg_lun_cit(tf); |
| 1219 | target_fabric_setup_tpg_np_cit(tf); |
| 1220 | target_fabric_setup_tpg_np_base_cit(tf); |
| 1221 | target_fabric_setup_tpg_attrib_cit(tf); |
| 1222 | target_fabric_setup_tpg_param_cit(tf); |
| 1223 | target_fabric_setup_tpg_nacl_cit(tf); |
| 1224 | target_fabric_setup_tpg_nacl_base_cit(tf); |
| 1225 | target_fabric_setup_tpg_nacl_attrib_cit(tf); |
| 1226 | target_fabric_setup_tpg_nacl_auth_cit(tf); |
| 1227 | target_fabric_setup_tpg_nacl_param_cit(tf); |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 1228 | target_fabric_setup_tpg_nacl_stat_cit(tf); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1229 | target_fabric_setup_tpg_mappedlun_cit(tf); |
Nicholas Bellinger | 12d233842 | 2011-03-14 04:06:11 -0700 | [diff] [blame^] | 1230 | target_fabric_setup_tpg_mappedlun_stat_cit(tf); |
Nicholas Bellinger | c66ac9d | 2010-12-17 11:11:26 -0800 | [diff] [blame] | 1231 | |
| 1232 | return 0; |
| 1233 | } |