1 /******************************************************************************* 2 * This file contains the configfs implementation for iSCSI Target mode 3 * from the LIO-Target Project. 4 * 5 * \u00a9 Copyright 2007-2011 RisingTide Systems LLC. 6 * 7 * Licensed to the Linux Foundation under the General Public License (GPL) version 2. 8 * 9 * Author: 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/configfs.h> 23 #include <linux/export.h> 24 #include <linux/inet.h> 25 #include <target/target_core_base.h> 26 #include <target/target_core_fabric.h> 27 #include <target/target_core_fabric_configfs.h> 28 #include <target/target_core_configfs.h> 29 #include <target/configfs_macros.h> 30 31 #include "iscsi_target_core.h" 32 #include "iscsi_target_parameters.h" 33 #include "iscsi_target_device.h" 34 #include "iscsi_target_erl0.h" 35 #include "iscsi_target_nodeattrib.h" 36 #include "iscsi_target_tpg.h" 37 #include "iscsi_target_util.h" 38 #include "iscsi_target.h" 39 #include "iscsi_target_stat.h" 40 #include "iscsi_target_configfs.h" 41 42 struct target_fabric_configfs *lio_target_fabric_configfs; 43 44 struct lio_target_configfs_attribute { 45 struct configfs_attribute attr; 46 ssize_t (*show)(void *, char *); 47 ssize_t (*store)(void *, const char *, size_t); 48 }; 49 50 struct iscsi_portal_group *lio_get_tpg_from_tpg_item( 51 struct config_item *item, 52 struct iscsi_tiqn **tiqn_out) 53 { 54 struct se_portal_group *se_tpg = container_of(to_config_group(item), 55 struct se_portal_group, tpg_group); 56 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 57 int ret; 58 59 if (!tpg) { 60 pr_err("Unable to locate struct iscsi_portal_group " 61 "pointer\n"); 62 return NULL; 63 } 64 ret = iscsit_get_tpg(tpg); 65 if (ret < 0) 66 return NULL; 67 68 *tiqn_out = tpg->tpg_tiqn; 69 return tpg; 70 } 71 72 /* Start items for lio_target_portal_cit */ 73 74 static ssize_t lio_target_np_show_sctp( 75 struct se_tpg_np *se_tpg_np, 76 char *page) 77 { 78 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, 79 struct iscsi_tpg_np, se_tpg_np); 80 struct iscsi_tpg_np *tpg_np_sctp; 81 ssize_t rb; 82 83 tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP); 84 if (tpg_np_sctp) 85 rb = sprintf(page, "1\n"); 86 else 87 rb = sprintf(page, "0\n"); 88 89 return rb; 90 } 91 92 static ssize_t lio_target_np_store_sctp( 93 struct se_tpg_np *se_tpg_np, 94 const char *page, 95 size_t count) 96 { 97 struct iscsi_np *np; 98 struct iscsi_portal_group *tpg; 99 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, 100 struct iscsi_tpg_np, se_tpg_np); 101 struct iscsi_tpg_np *tpg_np_sctp = NULL; 102 char *endptr; 103 u32 op; 104 int ret; 105 106 op = simple_strtoul(page, &endptr, 0); 107 if ((op != 1) && (op != 0)) { 108 pr_err("Illegal value for tpg_enable: %u\n", op); 109 return -EINVAL; 110 } 111 np = tpg_np->tpg_np; 112 if (!np) { 113 pr_err("Unable to locate struct iscsi_np from" 114 " struct iscsi_tpg_np\n"); 115 return -EINVAL; 116 } 117 118 tpg = tpg_np->tpg; 119 if (iscsit_get_tpg(tpg) < 0) 120 return -EINVAL; 121 122 if (op) { 123 /* 124 * Use existing np->np_sockaddr for SCTP network portal reference 125 */ 126 tpg_np_sctp = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr, 127 np->np_ip, tpg_np, ISCSI_SCTP_TCP); 128 if (!tpg_np_sctp || IS_ERR(tpg_np_sctp)) 129 goto out; 130 } else { 131 tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP); 132 if (!tpg_np_sctp) 133 goto out; 134 135 ret = iscsit_tpg_del_network_portal(tpg, tpg_np_sctp); 136 if (ret < 0) 137 goto out; 138 } 139 140 iscsit_put_tpg(tpg); 141 return count; 142 out: 143 iscsit_put_tpg(tpg); 144 return -EINVAL; 145 } 146 147 TF_NP_BASE_ATTR(lio_target, sctp, S_IRUGO | S_IWUSR); 148 149 static struct configfs_attribute *lio_target_portal_attrs[] = { 150 &lio_target_np_sctp.attr, 151 NULL, 152 }; 153 154 /* Stop items for lio_target_portal_cit */ 155 156 /* Start items for lio_target_np_cit */ 157 158 #define MAX_PORTAL_LEN 256 159 160 struct se_tpg_np *lio_target_call_addnptotpg( 161 struct se_portal_group *se_tpg, 162 struct config_group *group, 163 const char *name) 164 { 165 struct iscsi_portal_group *tpg; 166 struct iscsi_tpg_np *tpg_np; 167 char *str, *str2, *ip_str, *port_str; 168 struct __kernel_sockaddr_storage sockaddr; 169 struct sockaddr_in *sock_in; 170 struct sockaddr_in6 *sock_in6; 171 unsigned long port; 172 int ret; 173 char buf[MAX_PORTAL_LEN + 1]; 174 175 if (strlen(name) > MAX_PORTAL_LEN) { 176 pr_err("strlen(name): %d exceeds MAX_PORTAL_LEN: %d\n", 177 (int)strlen(name), MAX_PORTAL_LEN); 178 return ERR_PTR(-EOVERFLOW); 179 } 180 memset(buf, 0, MAX_PORTAL_LEN + 1); 181 snprintf(buf, MAX_PORTAL_LEN + 1, "%s", name); 182 183 memset(&sockaddr, 0, sizeof(struct __kernel_sockaddr_storage)); 184 185 str = strstr(buf, "["); 186 if (str) { 187 const char *end; 188 189 str2 = strstr(str, "]"); 190 if (!str2) { 191 pr_err("Unable to locate trailing \"]\"" 192 " in IPv6 iSCSI network portal address\n"); 193 return ERR_PTR(-EINVAL); 194 } 195 str++; /* Skip over leading "[" */ 196 *str2 = '\0'; /* Terminate the IPv6 address */ 197 str2++; /* Skip over the "]" */ 198 port_str = strstr(str2, ":"); 199 if (!port_str) { 200 pr_err("Unable to locate \":port\"" 201 " in IPv6 iSCSI network portal address\n"); 202 return ERR_PTR(-EINVAL); 203 } 204 *port_str = '\0'; /* Terminate string for IP */ 205 port_str++; /* Skip over ":" */ 206 207 ret = strict_strtoul(port_str, 0, &port); 208 if (ret < 0) { 209 pr_err("strict_strtoul() failed for port_str: %d\n", ret); 210 return ERR_PTR(ret); 211 } 212 sock_in6 = (struct sockaddr_in6 *)&sockaddr; 213 sock_in6->sin6_family = AF_INET6; 214 sock_in6->sin6_port = htons((unsigned short)port); 215 ret = in6_pton(str, IPV6_ADDRESS_SPACE, 216 (void *)&sock_in6->sin6_addr.in6_u, -1, &end); 217 if (ret <= 0) { 218 pr_err("in6_pton returned: %d\n", ret); 219 return ERR_PTR(-EINVAL); 220 } 221 } else { 222 str = ip_str = &buf[0]; 223 port_str = strstr(ip_str, ":"); 224 if (!port_str) { 225 pr_err("Unable to locate \":port\"" 226 " in IPv4 iSCSI network portal address\n"); 227 return ERR_PTR(-EINVAL); 228 } 229 *port_str = '\0'; /* Terminate string for IP */ 230 port_str++; /* Skip over ":" */ 231 232 ret = strict_strtoul(port_str, 0, &port); 233 if (ret < 0) { 234 pr_err("strict_strtoul() failed for port_str: %d\n", ret); 235 return ERR_PTR(ret); 236 } 237 sock_in = (struct sockaddr_in *)&sockaddr; 238 sock_in->sin_family = AF_INET; 239 sock_in->sin_port = htons((unsigned short)port); 240 sock_in->sin_addr.s_addr = in_aton(ip_str); 241 } 242 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); 243 ret = iscsit_get_tpg(tpg); 244 if (ret < 0) 245 return ERR_PTR(-EINVAL); 246 247 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s TPGT: %hu" 248 " PORTAL: %s\n", 249 config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item), 250 tpg->tpgt, name); 251 /* 252 * Assume ISCSI_TCP by default. Other network portals for other 253 * iSCSI fabrics: 254 * 255 * Traditional iSCSI over SCTP (initial support) 256 * iSER/TCP (TODO, hardware available) 257 * iSER/SCTP (TODO, software emulation with osc-iwarp) 258 * iSER/IB (TODO, hardware available) 259 * 260 * can be enabled with atributes under 261 * sys/kernel/config/iscsi/$IQN/$TPG/np/$IP:$PORT/ 262 * 263 */ 264 tpg_np = iscsit_tpg_add_network_portal(tpg, &sockaddr, str, NULL, 265 ISCSI_TCP); 266 if (IS_ERR(tpg_np)) { 267 iscsit_put_tpg(tpg); 268 return ERR_CAST(tpg_np); 269 } 270 pr_debug("LIO_Target_ConfigFS: addnptotpg done!\n"); 271 272 iscsit_put_tpg(tpg); 273 return &tpg_np->se_tpg_np; 274 } 275 276 static void lio_target_call_delnpfromtpg( 277 struct se_tpg_np *se_tpg_np) 278 { 279 struct iscsi_portal_group *tpg; 280 struct iscsi_tpg_np *tpg_np; 281 struct se_portal_group *se_tpg; 282 int ret; 283 284 tpg_np = container_of(se_tpg_np, struct iscsi_tpg_np, se_tpg_np); 285 tpg = tpg_np->tpg; 286 ret = iscsit_get_tpg(tpg); 287 if (ret < 0) 288 return; 289 290 se_tpg = &tpg->tpg_se_tpg; 291 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s TPGT: %hu" 292 " PORTAL: %s:%hu\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item), 293 tpg->tpgt, tpg_np->tpg_np->np_ip, tpg_np->tpg_np->np_port); 294 295 ret = iscsit_tpg_del_network_portal(tpg, tpg_np); 296 if (ret < 0) 297 goto out; 298 299 pr_debug("LIO_Target_ConfigFS: delnpfromtpg done!\n"); 300 out: 301 iscsit_put_tpg(tpg); 302 } 303 304 /* End items for lio_target_np_cit */ 305 306 /* Start items for lio_target_nacl_attrib_cit */ 307 308 #define DEF_NACL_ATTRIB(name) \ 309 static ssize_t iscsi_nacl_attrib_show_##name( \ 310 struct se_node_acl *se_nacl, \ 311 char *page) \ 312 { \ 313 struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \ 314 se_node_acl); \ 315 \ 316 return sprintf(page, "%u\n", ISCSI_NODE_ATTRIB(nacl)->name); \ 317 } \ 318 \ 319 static ssize_t iscsi_nacl_attrib_store_##name( \ 320 struct se_node_acl *se_nacl, \ 321 const char *page, \ 322 size_t count) \ 323 { \ 324 struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \ 325 se_node_acl); \ 326 char *endptr; \ 327 u32 val; \ 328 int ret; \ 329 \ 330 val = simple_strtoul(page, &endptr, 0); \ 331 ret = iscsit_na_##name(nacl, val); \ 332 if (ret < 0) \ 333 return ret; \ 334 \ 335 return count; \ 336 } 337 338 #define NACL_ATTR(_name, _mode) TF_NACL_ATTRIB_ATTR(iscsi, _name, _mode); 339 /* 340 * Define iscsi_node_attrib_s_dataout_timeout 341 */ 342 DEF_NACL_ATTRIB(dataout_timeout); 343 NACL_ATTR(dataout_timeout, S_IRUGO | S_IWUSR); 344 /* 345 * Define iscsi_node_attrib_s_dataout_timeout_retries 346 */ 347 DEF_NACL_ATTRIB(dataout_timeout_retries); 348 NACL_ATTR(dataout_timeout_retries, S_IRUGO | S_IWUSR); 349 /* 350 * Define iscsi_node_attrib_s_default_erl 351 */ 352 DEF_NACL_ATTRIB(default_erl); 353 NACL_ATTR(default_erl, S_IRUGO | S_IWUSR); 354 /* 355 * Define iscsi_node_attrib_s_nopin_timeout 356 */ 357 DEF_NACL_ATTRIB(nopin_timeout); 358 NACL_ATTR(nopin_timeout, S_IRUGO | S_IWUSR); 359 /* 360 * Define iscsi_node_attrib_s_nopin_response_timeout 361 */ 362 DEF_NACL_ATTRIB(nopin_response_timeout); 363 NACL_ATTR(nopin_response_timeout, S_IRUGO | S_IWUSR); 364 /* 365 * Define iscsi_node_attrib_s_random_datain_pdu_offsets 366 */ 367 DEF_NACL_ATTRIB(random_datain_pdu_offsets); 368 NACL_ATTR(random_datain_pdu_offsets, S_IRUGO | S_IWUSR); 369 /* 370 * Define iscsi_node_attrib_s_random_datain_seq_offsets 371 */ 372 DEF_NACL_ATTRIB(random_datain_seq_offsets); 373 NACL_ATTR(random_datain_seq_offsets, S_IRUGO | S_IWUSR); 374 /* 375 * Define iscsi_node_attrib_s_random_r2t_offsets 376 */ 377 DEF_NACL_ATTRIB(random_r2t_offsets); 378 NACL_ATTR(random_r2t_offsets, S_IRUGO | S_IWUSR); 379 380 static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = { 381 &iscsi_nacl_attrib_dataout_timeout.attr, 382 &iscsi_nacl_attrib_dataout_timeout_retries.attr, 383 &iscsi_nacl_attrib_default_erl.attr, 384 &iscsi_nacl_attrib_nopin_timeout.attr, 385 &iscsi_nacl_attrib_nopin_response_timeout.attr, 386 &iscsi_nacl_attrib_random_datain_pdu_offsets.attr, 387 &iscsi_nacl_attrib_random_datain_seq_offsets.attr, 388 &iscsi_nacl_attrib_random_r2t_offsets.attr, 389 NULL, 390 }; 391 392 /* End items for lio_target_nacl_attrib_cit */ 393 394 /* Start items for lio_target_nacl_auth_cit */ 395 396 #define __DEF_NACL_AUTH_STR(prefix, name, flags) \ 397 static ssize_t __iscsi_##prefix##_show_##name( \ 398 struct iscsi_node_acl *nacl, \ 399 char *page) \ 400 { \ 401 struct iscsi_node_auth *auth = &nacl->node_auth; \ 402 \ 403 if (!capable(CAP_SYS_ADMIN)) \ 404 return -EPERM; \ 405 return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \ 406 } \ 407 \ 408 static ssize_t __iscsi_##prefix##_store_##name( \ 409 struct iscsi_node_acl *nacl, \ 410 const char *page, \ 411 size_t count) \ 412 { \ 413 struct iscsi_node_auth *auth = &nacl->node_auth; \ 414 \ 415 if (!capable(CAP_SYS_ADMIN)) \ 416 return -EPERM; \ 417 \ 418 snprintf(auth->name, PAGE_SIZE, "%s", page); \ 419 if (!strncmp("NULL", auth->name, 4)) \ 420 auth->naf_flags &= ~flags; \ 421 else \ 422 auth->naf_flags |= flags; \ 423 \ 424 if ((auth->naf_flags & NAF_USERID_IN_SET) && \ 425 (auth->naf_flags & NAF_PASSWORD_IN_SET)) \ 426 auth->authenticate_target = 1; \ 427 else \ 428 auth->authenticate_target = 0; \ 429 \ 430 return count; \ 431 } 432 433 #define __DEF_NACL_AUTH_INT(prefix, name) \ 434 static ssize_t __iscsi_##prefix##_show_##name( \ 435 struct iscsi_node_acl *nacl, \ 436 char *page) \ 437 { \ 438 struct iscsi_node_auth *auth = &nacl->node_auth; \ 439 \ 440 if (!capable(CAP_SYS_ADMIN)) \ 441 return -EPERM; \ 442 \ 443 return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \ 444 } 445 446 #define DEF_NACL_AUTH_STR(name, flags) \ 447 __DEF_NACL_AUTH_STR(nacl_auth, name, flags) \ 448 static ssize_t iscsi_nacl_auth_show_##name( \ 449 struct se_node_acl *nacl, \ 450 char *page) \ 451 { \ 452 return __iscsi_nacl_auth_show_##name(container_of(nacl, \ 453 struct iscsi_node_acl, se_node_acl), page); \ 454 } \ 455 static ssize_t iscsi_nacl_auth_store_##name( \ 456 struct se_node_acl *nacl, \ 457 const char *page, \ 458 size_t count) \ 459 { \ 460 return __iscsi_nacl_auth_store_##name(container_of(nacl, \ 461 struct iscsi_node_acl, se_node_acl), page, count); \ 462 } 463 464 #define DEF_NACL_AUTH_INT(name) \ 465 __DEF_NACL_AUTH_INT(nacl_auth, name) \ 466 static ssize_t iscsi_nacl_auth_show_##name( \ 467 struct se_node_acl *nacl, \ 468 char *page) \ 469 { \ 470 return __iscsi_nacl_auth_show_##name(container_of(nacl, \ 471 struct iscsi_node_acl, se_node_acl), page); \ 472 } 473 474 #define AUTH_ATTR(_name, _mode) TF_NACL_AUTH_ATTR(iscsi, _name, _mode); 475 #define AUTH_ATTR_RO(_name) TF_NACL_AUTH_ATTR_RO(iscsi, _name); 476 477 /* 478 * One-way authentication userid 479 */ 480 DEF_NACL_AUTH_STR(userid, NAF_USERID_SET); 481 AUTH_ATTR(userid, S_IRUGO | S_IWUSR); 482 /* 483 * One-way authentication password 484 */ 485 DEF_NACL_AUTH_STR(password, NAF_PASSWORD_SET); 486 AUTH_ATTR(password, S_IRUGO | S_IWUSR); 487 /* 488 * Enforce mutual authentication 489 */ 490 DEF_NACL_AUTH_INT(authenticate_target); 491 AUTH_ATTR_RO(authenticate_target); 492 /* 493 * Mutual authentication userid 494 */ 495 DEF_NACL_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); 496 AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR); 497 /* 498 * Mutual authentication password 499 */ 500 DEF_NACL_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); 501 AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR); 502 503 static struct configfs_attribute *lio_target_nacl_auth_attrs[] = { 504 &iscsi_nacl_auth_userid.attr, 505 &iscsi_nacl_auth_password.attr, 506 &iscsi_nacl_auth_authenticate_target.attr, 507 &iscsi_nacl_auth_userid_mutual.attr, 508 &iscsi_nacl_auth_password_mutual.attr, 509 NULL, 510 }; 511 512 /* End items for lio_target_nacl_auth_cit */ 513 514 /* Start items for lio_target_nacl_param_cit */ 515 516 #define DEF_NACL_PARAM(name) \ 517 static ssize_t iscsi_nacl_param_show_##name( \ 518 struct se_node_acl *se_nacl, \ 519 char *page) \ 520 { \ 521 struct iscsi_session *sess; \ 522 struct se_session *se_sess; \ 523 ssize_t rb; \ 524 \ 525 spin_lock_bh(&se_nacl->nacl_sess_lock); \ 526 se_sess = se_nacl->nacl_sess; \ 527 if (!se_sess) { \ 528 rb = snprintf(page, PAGE_SIZE, \ 529 "No Active iSCSI Session\n"); \ 530 } else { \ 531 sess = se_sess->fabric_sess_ptr; \ 532 rb = snprintf(page, PAGE_SIZE, "%u\n", \ 533 (u32)sess->sess_ops->name); \ 534 } \ 535 spin_unlock_bh(&se_nacl->nacl_sess_lock); \ 536 \ 537 return rb; \ 538 } 539 540 #define NACL_PARAM_ATTR(_name) TF_NACL_PARAM_ATTR_RO(iscsi, _name); 541 542 DEF_NACL_PARAM(MaxConnections); 543 NACL_PARAM_ATTR(MaxConnections); 544 545 DEF_NACL_PARAM(InitialR2T); 546 NACL_PARAM_ATTR(InitialR2T); 547 548 DEF_NACL_PARAM(ImmediateData); 549 NACL_PARAM_ATTR(ImmediateData); 550 551 DEF_NACL_PARAM(MaxBurstLength); 552 NACL_PARAM_ATTR(MaxBurstLength); 553 554 DEF_NACL_PARAM(FirstBurstLength); 555 NACL_PARAM_ATTR(FirstBurstLength); 556 557 DEF_NACL_PARAM(DefaultTime2Wait); 558 NACL_PARAM_ATTR(DefaultTime2Wait); 559 560 DEF_NACL_PARAM(DefaultTime2Retain); 561 NACL_PARAM_ATTR(DefaultTime2Retain); 562 563 DEF_NACL_PARAM(MaxOutstandingR2T); 564 NACL_PARAM_ATTR(MaxOutstandingR2T); 565 566 DEF_NACL_PARAM(DataPDUInOrder); 567 NACL_PARAM_ATTR(DataPDUInOrder); 568 569 DEF_NACL_PARAM(DataSequenceInOrder); 570 NACL_PARAM_ATTR(DataSequenceInOrder); 571 572 DEF_NACL_PARAM(ErrorRecoveryLevel); 573 NACL_PARAM_ATTR(ErrorRecoveryLevel); 574 575 static struct configfs_attribute *lio_target_nacl_param_attrs[] = { 576 &iscsi_nacl_param_MaxConnections.attr, 577 &iscsi_nacl_param_InitialR2T.attr, 578 &iscsi_nacl_param_ImmediateData.attr, 579 &iscsi_nacl_param_MaxBurstLength.attr, 580 &iscsi_nacl_param_FirstBurstLength.attr, 581 &iscsi_nacl_param_DefaultTime2Wait.attr, 582 &iscsi_nacl_param_DefaultTime2Retain.attr, 583 &iscsi_nacl_param_MaxOutstandingR2T.attr, 584 &iscsi_nacl_param_DataPDUInOrder.attr, 585 &iscsi_nacl_param_DataSequenceInOrder.attr, 586 &iscsi_nacl_param_ErrorRecoveryLevel.attr, 587 NULL, 588 }; 589 590 /* End items for lio_target_nacl_param_cit */ 591 592 /* Start items for lio_target_acl_cit */ 593 594 static ssize_t lio_target_nacl_show_info( 595 struct se_node_acl *se_nacl, 596 char *page) 597 { 598 struct iscsi_session *sess; 599 struct iscsi_conn *conn; 600 struct se_session *se_sess; 601 ssize_t rb = 0; 602 603 spin_lock_bh(&se_nacl->nacl_sess_lock); 604 se_sess = se_nacl->nacl_sess; 605 if (!se_sess) { 606 rb += sprintf(page+rb, "No active iSCSI Session for Initiator" 607 " Endpoint: %s\n", se_nacl->initiatorname); 608 } else { 609 sess = se_sess->fabric_sess_ptr; 610 611 if (sess->sess_ops->InitiatorName) 612 rb += sprintf(page+rb, "InitiatorName: %s\n", 613 sess->sess_ops->InitiatorName); 614 if (sess->sess_ops->InitiatorAlias) 615 rb += sprintf(page+rb, "InitiatorAlias: %s\n", 616 sess->sess_ops->InitiatorAlias); 617 618 rb += sprintf(page+rb, "LIO Session ID: %u " 619 "ISID: 0x%02x %02x %02x %02x %02x %02x " 620 "TSIH: %hu ", sess->sid, 621 sess->isid[0], sess->isid[1], sess->isid[2], 622 sess->isid[3], sess->isid[4], sess->isid[5], 623 sess->tsih); 624 rb += sprintf(page+rb, "SessionType: %s\n", 625 (sess->sess_ops->SessionType) ? 626 "Discovery" : "Normal"); 627 rb += sprintf(page+rb, "Session State: "); 628 switch (sess->session_state) { 629 case TARG_SESS_STATE_FREE: 630 rb += sprintf(page+rb, "TARG_SESS_FREE\n"); 631 break; 632 case TARG_SESS_STATE_ACTIVE: 633 rb += sprintf(page+rb, "TARG_SESS_STATE_ACTIVE\n"); 634 break; 635 case TARG_SESS_STATE_LOGGED_IN: 636 rb += sprintf(page+rb, "TARG_SESS_STATE_LOGGED_IN\n"); 637 break; 638 case TARG_SESS_STATE_FAILED: 639 rb += sprintf(page+rb, "TARG_SESS_STATE_FAILED\n"); 640 break; 641 case TARG_SESS_STATE_IN_CONTINUE: 642 rb += sprintf(page+rb, "TARG_SESS_STATE_IN_CONTINUE\n"); 643 break; 644 default: 645 rb += sprintf(page+rb, "ERROR: Unknown Session" 646 " State!\n"); 647 break; 648 } 649 650 rb += sprintf(page+rb, "---------------------[iSCSI Session" 651 " Values]-----------------------\n"); 652 rb += sprintf(page+rb, " CmdSN/WR : CmdSN/WC : ExpCmdSN" 653 " : MaxCmdSN : ITT : TTT\n"); 654 rb += sprintf(page+rb, " 0x%08x 0x%08x 0x%08x 0x%08x" 655 " 0x%08x 0x%08x\n", 656 sess->cmdsn_window, 657 (sess->max_cmd_sn - sess->exp_cmd_sn) + 1, 658 sess->exp_cmd_sn, sess->max_cmd_sn, 659 sess->init_task_tag, sess->targ_xfer_tag); 660 rb += sprintf(page+rb, "----------------------[iSCSI" 661 " Connections]-------------------------\n"); 662 663 spin_lock(&sess->conn_lock); 664 list_for_each_entry(conn, &sess->sess_conn_list, conn_list) { 665 rb += sprintf(page+rb, "CID: %hu Connection" 666 " State: ", conn->cid); 667 switch (conn->conn_state) { 668 case TARG_CONN_STATE_FREE: 669 rb += sprintf(page+rb, 670 "TARG_CONN_STATE_FREE\n"); 671 break; 672 case TARG_CONN_STATE_XPT_UP: 673 rb += sprintf(page+rb, 674 "TARG_CONN_STATE_XPT_UP\n"); 675 break; 676 case TARG_CONN_STATE_IN_LOGIN: 677 rb += sprintf(page+rb, 678 "TARG_CONN_STATE_IN_LOGIN\n"); 679 break; 680 case TARG_CONN_STATE_LOGGED_IN: 681 rb += sprintf(page+rb, 682 "TARG_CONN_STATE_LOGGED_IN\n"); 683 break; 684 case TARG_CONN_STATE_IN_LOGOUT: 685 rb += sprintf(page+rb, 686 "TARG_CONN_STATE_IN_LOGOUT\n"); 687 break; 688 case TARG_CONN_STATE_LOGOUT_REQUESTED: 689 rb += sprintf(page+rb, 690 "TARG_CONN_STATE_LOGOUT_REQUESTED\n"); 691 break; 692 case TARG_CONN_STATE_CLEANUP_WAIT: 693 rb += sprintf(page+rb, 694 "TARG_CONN_STATE_CLEANUP_WAIT\n"); 695 break; 696 default: 697 rb += sprintf(page+rb, 698 "ERROR: Unknown Connection State!\n"); 699 break; 700 } 701 702 rb += sprintf(page+rb, " Address %s %s", conn->login_ip, 703 (conn->network_transport == ISCSI_TCP) ? 704 "TCP" : "SCTP"); 705 rb += sprintf(page+rb, " StatSN: 0x%08x\n", 706 conn->stat_sn); 707 } 708 spin_unlock(&sess->conn_lock); 709 } 710 spin_unlock_bh(&se_nacl->nacl_sess_lock); 711 712 return rb; 713 } 714 715 TF_NACL_BASE_ATTR_RO(lio_target, info); 716 717 static ssize_t lio_target_nacl_show_cmdsn_depth( 718 struct se_node_acl *se_nacl, 719 char *page) 720 { 721 return sprintf(page, "%u\n", se_nacl->queue_depth); 722 } 723 724 static ssize_t lio_target_nacl_store_cmdsn_depth( 725 struct se_node_acl *se_nacl, 726 const char *page, 727 size_t count) 728 { 729 struct se_portal_group *se_tpg = se_nacl->se_tpg; 730 struct iscsi_portal_group *tpg = container_of(se_tpg, 731 struct iscsi_portal_group, tpg_se_tpg); 732 struct config_item *acl_ci, *tpg_ci, *wwn_ci; 733 char *endptr; 734 u32 cmdsn_depth = 0; 735 int ret; 736 737 cmdsn_depth = simple_strtoul(page, &endptr, 0); 738 if (cmdsn_depth > TA_DEFAULT_CMDSN_DEPTH_MAX) { 739 pr_err("Passed cmdsn_depth: %u exceeds" 740 " TA_DEFAULT_CMDSN_DEPTH_MAX: %u\n", cmdsn_depth, 741 TA_DEFAULT_CMDSN_DEPTH_MAX); 742 return -EINVAL; 743 } 744 acl_ci = &se_nacl->acl_group.cg_item; 745 if (!acl_ci) { 746 pr_err("Unable to locatel acl_ci\n"); 747 return -EINVAL; 748 } 749 tpg_ci = &acl_ci->ci_parent->ci_group->cg_item; 750 if (!tpg_ci) { 751 pr_err("Unable to locate tpg_ci\n"); 752 return -EINVAL; 753 } 754 wwn_ci = &tpg_ci->ci_group->cg_item; 755 if (!wwn_ci) { 756 pr_err("Unable to locate config_item wwn_ci\n"); 757 return -EINVAL; 758 } 759 760 if (iscsit_get_tpg(tpg) < 0) 761 return -EINVAL; 762 /* 763 * iscsit_tpg_set_initiator_node_queue_depth() assumes force=1 764 */ 765 ret = iscsit_tpg_set_initiator_node_queue_depth(tpg, 766 config_item_name(acl_ci), cmdsn_depth, 1); 767 768 pr_debug("LIO_Target_ConfigFS: %s/%s Set CmdSN Window: %u for" 769 "InitiatorName: %s\n", config_item_name(wwn_ci), 770 config_item_name(tpg_ci), cmdsn_depth, 771 config_item_name(acl_ci)); 772 773 iscsit_put_tpg(tpg); 774 return (!ret) ? count : (ssize_t)ret; 775 } 776 777 TF_NACL_BASE_ATTR(lio_target, cmdsn_depth, S_IRUGO | S_IWUSR); 778 779 static struct configfs_attribute *lio_target_initiator_attrs[] = { 780 &lio_target_nacl_info.attr, 781 &lio_target_nacl_cmdsn_depth.attr, 782 NULL, 783 }; 784 785 static struct se_node_acl *lio_tpg_alloc_fabric_acl( 786 struct se_portal_group *se_tpg) 787 { 788 struct iscsi_node_acl *acl; 789 790 acl = kzalloc(sizeof(struct iscsi_node_acl), GFP_KERNEL); 791 if (!acl) { 792 pr_err("Unable to allocate memory for struct iscsi_node_acl\n"); 793 return NULL; 794 } 795 796 return &acl->se_node_acl; 797 } 798 799 static struct se_node_acl *lio_target_make_nodeacl( 800 struct se_portal_group *se_tpg, 801 struct config_group *group, 802 const char *name) 803 { 804 struct config_group *stats_cg; 805 struct iscsi_node_acl *acl; 806 struct se_node_acl *se_nacl_new, *se_nacl; 807 struct iscsi_portal_group *tpg = container_of(se_tpg, 808 struct iscsi_portal_group, tpg_se_tpg); 809 u32 cmdsn_depth; 810 811 se_nacl_new = lio_tpg_alloc_fabric_acl(se_tpg); 812 if (!se_nacl_new) 813 return ERR_PTR(-ENOMEM); 814 815 cmdsn_depth = ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth; 816 /* 817 * se_nacl_new may be released by core_tpg_add_initiator_node_acl() 818 * when converting a NdoeACL from demo mode -> explict 819 */ 820 se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new, 821 name, cmdsn_depth); 822 if (IS_ERR(se_nacl)) 823 return se_nacl; 824 825 acl = container_of(se_nacl, struct iscsi_node_acl, se_node_acl); 826 stats_cg = &se_nacl->acl_fabric_stat_group; 827 828 stats_cg->default_groups = kzalloc(sizeof(struct config_group) * 2, 829 GFP_KERNEL); 830 if (!stats_cg->default_groups) { 831 pr_err("Unable to allocate memory for" 832 " stats_cg->default_groups\n"); 833 core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1); 834 kfree(acl); 835 return ERR_PTR(-ENOMEM); 836 } 837 838 stats_cg->default_groups[0] = &NODE_STAT_GRPS(acl)->iscsi_sess_stats_group; 839 stats_cg->default_groups[1] = NULL; 840 config_group_init_type_name(&NODE_STAT_GRPS(acl)->iscsi_sess_stats_group, 841 "iscsi_sess_stats", &iscsi_stat_sess_cit); 842 843 return se_nacl; 844 } 845 846 static void lio_target_drop_nodeacl( 847 struct se_node_acl *se_nacl) 848 { 849 struct se_portal_group *se_tpg = se_nacl->se_tpg; 850 struct iscsi_node_acl *acl = container_of(se_nacl, 851 struct iscsi_node_acl, se_node_acl); 852 struct config_item *df_item; 853 struct config_group *stats_cg; 854 int i; 855 856 stats_cg = &acl->se_node_acl.acl_fabric_stat_group; 857 for (i = 0; stats_cg->default_groups[i]; i++) { 858 df_item = &stats_cg->default_groups[i]->cg_item; 859 stats_cg->default_groups[i] = NULL; 860 config_item_put(df_item); 861 } 862 kfree(stats_cg->default_groups); 863 864 core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1); 865 kfree(acl); 866 } 867 868 /* End items for lio_target_acl_cit */ 869 870 /* Start items for lio_target_tpg_attrib_cit */ 871 872 #define DEF_TPG_ATTRIB(name) \ 873 \ 874 static ssize_t iscsi_tpg_attrib_show_##name( \ 875 struct se_portal_group *se_tpg, \ 876 char *page) \ 877 { \ 878 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 879 struct iscsi_portal_group, tpg_se_tpg); \ 880 ssize_t rb; \ 881 \ 882 if (iscsit_get_tpg(tpg) < 0) \ 883 return -EINVAL; \ 884 \ 885 rb = sprintf(page, "%u\n", ISCSI_TPG_ATTRIB(tpg)->name); \ 886 iscsit_put_tpg(tpg); \ 887 return rb; \ 888 } \ 889 \ 890 static ssize_t iscsi_tpg_attrib_store_##name( \ 891 struct se_portal_group *se_tpg, \ 892 const char *page, \ 893 size_t count) \ 894 { \ 895 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 896 struct iscsi_portal_group, tpg_se_tpg); \ 897 char *endptr; \ 898 u32 val; \ 899 int ret; \ 900 \ 901 if (iscsit_get_tpg(tpg) < 0) \ 902 return -EINVAL; \ 903 \ 904 val = simple_strtoul(page, &endptr, 0); \ 905 ret = iscsit_ta_##name(tpg, val); \ 906 if (ret < 0) \ 907 goto out; \ 908 \ 909 iscsit_put_tpg(tpg); \ 910 return count; \ 911 out: \ 912 iscsit_put_tpg(tpg); \ 913 return ret; \ 914 } 915 916 #define TPG_ATTR(_name, _mode) TF_TPG_ATTRIB_ATTR(iscsi, _name, _mode); 917 918 /* 919 * Define iscsi_tpg_attrib_s_authentication 920 */ 921 DEF_TPG_ATTRIB(authentication); 922 TPG_ATTR(authentication, S_IRUGO | S_IWUSR); 923 /* 924 * Define iscsi_tpg_attrib_s_login_timeout 925 */ 926 DEF_TPG_ATTRIB(login_timeout); 927 TPG_ATTR(login_timeout, S_IRUGO | S_IWUSR); 928 /* 929 * Define iscsi_tpg_attrib_s_netif_timeout 930 */ 931 DEF_TPG_ATTRIB(netif_timeout); 932 TPG_ATTR(netif_timeout, S_IRUGO | S_IWUSR); 933 /* 934 * Define iscsi_tpg_attrib_s_generate_node_acls 935 */ 936 DEF_TPG_ATTRIB(generate_node_acls); 937 TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR); 938 /* 939 * Define iscsi_tpg_attrib_s_default_cmdsn_depth 940 */ 941 DEF_TPG_ATTRIB(default_cmdsn_depth); 942 TPG_ATTR(default_cmdsn_depth, S_IRUGO | S_IWUSR); 943 /* 944 Define iscsi_tpg_attrib_s_cache_dynamic_acls 945 */ 946 DEF_TPG_ATTRIB(cache_dynamic_acls); 947 TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR); 948 /* 949 * Define iscsi_tpg_attrib_s_demo_mode_write_protect 950 */ 951 DEF_TPG_ATTRIB(demo_mode_write_protect); 952 TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR); 953 /* 954 * Define iscsi_tpg_attrib_s_prod_mode_write_protect 955 */ 956 DEF_TPG_ATTRIB(prod_mode_write_protect); 957 TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR); 958 959 static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = { 960 &iscsi_tpg_attrib_authentication.attr, 961 &iscsi_tpg_attrib_login_timeout.attr, 962 &iscsi_tpg_attrib_netif_timeout.attr, 963 &iscsi_tpg_attrib_generate_node_acls.attr, 964 &iscsi_tpg_attrib_default_cmdsn_depth.attr, 965 &iscsi_tpg_attrib_cache_dynamic_acls.attr, 966 &iscsi_tpg_attrib_demo_mode_write_protect.attr, 967 &iscsi_tpg_attrib_prod_mode_write_protect.attr, 968 NULL, 969 }; 970 971 /* End items for lio_target_tpg_attrib_cit */ 972 973 /* Start items for lio_target_tpg_param_cit */ 974 975 #define DEF_TPG_PARAM(name) \ 976 static ssize_t iscsi_tpg_param_show_##name( \ 977 struct se_portal_group *se_tpg, \ 978 char *page) \ 979 { \ 980 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 981 struct iscsi_portal_group, tpg_se_tpg); \ 982 struct iscsi_param *param; \ 983 ssize_t rb; \ 984 \ 985 if (iscsit_get_tpg(tpg) < 0) \ 986 return -EINVAL; \ 987 \ 988 param = iscsi_find_param_from_key(__stringify(name), \ 989 tpg->param_list); \ 990 if (!param) { \ 991 iscsit_put_tpg(tpg); \ 992 return -EINVAL; \ 993 } \ 994 rb = snprintf(page, PAGE_SIZE, "%s\n", param->value); \ 995 \ 996 iscsit_put_tpg(tpg); \ 997 return rb; \ 998 } \ 999 static ssize_t iscsi_tpg_param_store_##name( \ 1000 struct se_portal_group *se_tpg, \ 1001 const char *page, \ 1002 size_t count) \ 1003 { \ 1004 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 1005 struct iscsi_portal_group, tpg_se_tpg); \ 1006 char *buf; \ 1007 int ret; \ 1008 \ 1009 buf = kzalloc(PAGE_SIZE, GFP_KERNEL); \ 1010 if (!buf) \ 1011 return -ENOMEM; \ 1012 snprintf(buf, PAGE_SIZE, "%s=%s", __stringify(name), page); \ 1013 buf[strlen(buf)-1] = '\0'; /* Kill newline */ \ 1014 \ 1015 if (iscsit_get_tpg(tpg) < 0) { \ 1016 kfree(buf); \ 1017 return -EINVAL; \ 1018 } \ 1019 \ 1020 ret = iscsi_change_param_value(buf, tpg->param_list, 1); \ 1021 if (ret < 0) \ 1022 goto out; \ 1023 \ 1024 kfree(buf); \ 1025 iscsit_put_tpg(tpg); \ 1026 return count; \ 1027 out: \ 1028 kfree(buf); \ 1029 iscsit_put_tpg(tpg); \ 1030 return -EINVAL; \ 1031 } 1032 1033 #define TPG_PARAM_ATTR(_name, _mode) TF_TPG_PARAM_ATTR(iscsi, _name, _mode); 1034 1035 DEF_TPG_PARAM(AuthMethod); 1036 TPG_PARAM_ATTR(AuthMethod, S_IRUGO | S_IWUSR); 1037 1038 DEF_TPG_PARAM(HeaderDigest); 1039 TPG_PARAM_ATTR(HeaderDigest, S_IRUGO | S_IWUSR); 1040 1041 DEF_TPG_PARAM(DataDigest); 1042 TPG_PARAM_ATTR(DataDigest, S_IRUGO | S_IWUSR); 1043 1044 DEF_TPG_PARAM(MaxConnections); 1045 TPG_PARAM_ATTR(MaxConnections, S_IRUGO | S_IWUSR); 1046 1047 DEF_TPG_PARAM(TargetAlias); 1048 TPG_PARAM_ATTR(TargetAlias, S_IRUGO | S_IWUSR); 1049 1050 DEF_TPG_PARAM(InitialR2T); 1051 TPG_PARAM_ATTR(InitialR2T, S_IRUGO | S_IWUSR); 1052 1053 DEF_TPG_PARAM(ImmediateData); 1054 TPG_PARAM_ATTR(ImmediateData, S_IRUGO | S_IWUSR); 1055 1056 DEF_TPG_PARAM(MaxRecvDataSegmentLength); 1057 TPG_PARAM_ATTR(MaxRecvDataSegmentLength, S_IRUGO | S_IWUSR); 1058 1059 DEF_TPG_PARAM(MaxBurstLength); 1060 TPG_PARAM_ATTR(MaxBurstLength, S_IRUGO | S_IWUSR); 1061 1062 DEF_TPG_PARAM(FirstBurstLength); 1063 TPG_PARAM_ATTR(FirstBurstLength, S_IRUGO | S_IWUSR); 1064 1065 DEF_TPG_PARAM(DefaultTime2Wait); 1066 TPG_PARAM_ATTR(DefaultTime2Wait, S_IRUGO | S_IWUSR); 1067 1068 DEF_TPG_PARAM(DefaultTime2Retain); 1069 TPG_PARAM_ATTR(DefaultTime2Retain, S_IRUGO | S_IWUSR); 1070 1071 DEF_TPG_PARAM(MaxOutstandingR2T); 1072 TPG_PARAM_ATTR(MaxOutstandingR2T, S_IRUGO | S_IWUSR); 1073 1074 DEF_TPG_PARAM(DataPDUInOrder); 1075 TPG_PARAM_ATTR(DataPDUInOrder, S_IRUGO | S_IWUSR); 1076 1077 DEF_TPG_PARAM(DataSequenceInOrder); 1078 TPG_PARAM_ATTR(DataSequenceInOrder, S_IRUGO | S_IWUSR); 1079 1080 DEF_TPG_PARAM(ErrorRecoveryLevel); 1081 TPG_PARAM_ATTR(ErrorRecoveryLevel, S_IRUGO | S_IWUSR); 1082 1083 DEF_TPG_PARAM(IFMarker); 1084 TPG_PARAM_ATTR(IFMarker, S_IRUGO | S_IWUSR); 1085 1086 DEF_TPG_PARAM(OFMarker); 1087 TPG_PARAM_ATTR(OFMarker, S_IRUGO | S_IWUSR); 1088 1089 DEF_TPG_PARAM(IFMarkInt); 1090 TPG_PARAM_ATTR(IFMarkInt, S_IRUGO | S_IWUSR); 1091 1092 DEF_TPG_PARAM(OFMarkInt); 1093 TPG_PARAM_ATTR(OFMarkInt, S_IRUGO | S_IWUSR); 1094 1095 static struct configfs_attribute *lio_target_tpg_param_attrs[] = { 1096 &iscsi_tpg_param_AuthMethod.attr, 1097 &iscsi_tpg_param_HeaderDigest.attr, 1098 &iscsi_tpg_param_DataDigest.attr, 1099 &iscsi_tpg_param_MaxConnections.attr, 1100 &iscsi_tpg_param_TargetAlias.attr, 1101 &iscsi_tpg_param_InitialR2T.attr, 1102 &iscsi_tpg_param_ImmediateData.attr, 1103 &iscsi_tpg_param_MaxRecvDataSegmentLength.attr, 1104 &iscsi_tpg_param_MaxBurstLength.attr, 1105 &iscsi_tpg_param_FirstBurstLength.attr, 1106 &iscsi_tpg_param_DefaultTime2Wait.attr, 1107 &iscsi_tpg_param_DefaultTime2Retain.attr, 1108 &iscsi_tpg_param_MaxOutstandingR2T.attr, 1109 &iscsi_tpg_param_DataPDUInOrder.attr, 1110 &iscsi_tpg_param_DataSequenceInOrder.attr, 1111 &iscsi_tpg_param_ErrorRecoveryLevel.attr, 1112 &iscsi_tpg_param_IFMarker.attr, 1113 &iscsi_tpg_param_OFMarker.attr, 1114 &iscsi_tpg_param_IFMarkInt.attr, 1115 &iscsi_tpg_param_OFMarkInt.attr, 1116 NULL, 1117 }; 1118 1119 /* End items for lio_target_tpg_param_cit */ 1120 1121 /* Start items for lio_target_tpg_cit */ 1122 1123 static ssize_t lio_target_tpg_show_enable( 1124 struct se_portal_group *se_tpg, 1125 char *page) 1126 { 1127 struct iscsi_portal_group *tpg = container_of(se_tpg, 1128 struct iscsi_portal_group, tpg_se_tpg); 1129 ssize_t len; 1130 1131 spin_lock(&tpg->tpg_state_lock); 1132 len = sprintf(page, "%d\n", 1133 (tpg->tpg_state == TPG_STATE_ACTIVE) ? 1 : 0); 1134 spin_unlock(&tpg->tpg_state_lock); 1135 1136 return len; 1137 } 1138 1139 static ssize_t lio_target_tpg_store_enable( 1140 struct se_portal_group *se_tpg, 1141 const char *page, 1142 size_t count) 1143 { 1144 struct iscsi_portal_group *tpg = container_of(se_tpg, 1145 struct iscsi_portal_group, tpg_se_tpg); 1146 char *endptr; 1147 u32 op; 1148 int ret = 0; 1149 1150 op = simple_strtoul(page, &endptr, 0); 1151 if ((op != 1) && (op != 0)) { 1152 pr_err("Illegal value for tpg_enable: %u\n", op); 1153 return -EINVAL; 1154 } 1155 1156 ret = iscsit_get_tpg(tpg); 1157 if (ret < 0) 1158 return -EINVAL; 1159 1160 if (op) { 1161 ret = iscsit_tpg_enable_portal_group(tpg); 1162 if (ret < 0) 1163 goto out; 1164 } else { 1165 /* 1166 * iscsit_tpg_disable_portal_group() assumes force=1 1167 */ 1168 ret = iscsit_tpg_disable_portal_group(tpg, 1); 1169 if (ret < 0) 1170 goto out; 1171 } 1172 1173 iscsit_put_tpg(tpg); 1174 return count; 1175 out: 1176 iscsit_put_tpg(tpg); 1177 return -EINVAL; 1178 } 1179 1180 TF_TPG_BASE_ATTR(lio_target, enable, S_IRUGO | S_IWUSR); 1181 1182 static struct configfs_attribute *lio_target_tpg_attrs[] = { 1183 &lio_target_tpg_enable.attr, 1184 NULL, 1185 }; 1186 1187 /* End items for lio_target_tpg_cit */ 1188 1189 /* Start items for lio_target_tiqn_cit */ 1190 1191 struct se_portal_group *lio_target_tiqn_addtpg( 1192 struct se_wwn *wwn, 1193 struct config_group *group, 1194 const char *name) 1195 { 1196 struct iscsi_portal_group *tpg; 1197 struct iscsi_tiqn *tiqn; 1198 char *tpgt_str, *end_ptr; 1199 int ret = 0; 1200 unsigned short int tpgt; 1201 1202 tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn); 1203 /* 1204 * Only tpgt_# directory groups can be created below 1205 * target/iscsi/iqn.superturodiskarry/ 1206 */ 1207 tpgt_str = strstr(name, "tpgt_"); 1208 if (!tpgt_str) { 1209 pr_err("Unable to locate \"tpgt_#\" directory" 1210 " group\n"); 1211 return NULL; 1212 } 1213 tpgt_str += 5; /* Skip ahead of "tpgt_" */ 1214 tpgt = (unsigned short int) simple_strtoul(tpgt_str, &end_ptr, 0); 1215 1216 tpg = iscsit_alloc_portal_group(tiqn, tpgt); 1217 if (!tpg) 1218 return NULL; 1219 1220 ret = core_tpg_register( 1221 &lio_target_fabric_configfs->tf_ops, 1222 wwn, &tpg->tpg_se_tpg, tpg, 1223 TRANSPORT_TPG_TYPE_NORMAL); 1224 if (ret < 0) 1225 return NULL; 1226 1227 ret = iscsit_tpg_add_portal_group(tiqn, tpg); 1228 if (ret != 0) 1229 goto out; 1230 1231 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn); 1232 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated TPG: %s\n", 1233 name); 1234 return &tpg->tpg_se_tpg; 1235 out: 1236 core_tpg_deregister(&tpg->tpg_se_tpg); 1237 kfree(tpg); 1238 return NULL; 1239 } 1240 1241 void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg) 1242 { 1243 struct iscsi_portal_group *tpg; 1244 struct iscsi_tiqn *tiqn; 1245 1246 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); 1247 tiqn = tpg->tpg_tiqn; 1248 /* 1249 * iscsit_tpg_del_portal_group() assumes force=1 1250 */ 1251 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> Releasing TPG\n"); 1252 iscsit_tpg_del_portal_group(tiqn, tpg, 1); 1253 } 1254 1255 /* End items for lio_target_tiqn_cit */ 1256 1257 /* Start LIO-Target TIQN struct contig_item lio_target_cit */ 1258 1259 static ssize_t lio_target_wwn_show_attr_lio_version( 1260 struct target_fabric_configfs *tf, 1261 char *page) 1262 { 1263 return sprintf(page, "RisingTide Systems Linux-iSCSI Target "ISCSIT_VERSION"\n"); 1264 } 1265 1266 TF_WWN_ATTR_RO(lio_target, lio_version); 1267 1268 static struct configfs_attribute *lio_target_wwn_attrs[] = { 1269 &lio_target_wwn_lio_version.attr, 1270 NULL, 1271 }; 1272 1273 struct se_wwn *lio_target_call_coreaddtiqn( 1274 struct target_fabric_configfs *tf, 1275 struct config_group *group, 1276 const char *name) 1277 { 1278 struct config_group *stats_cg; 1279 struct iscsi_tiqn *tiqn; 1280 1281 tiqn = iscsit_add_tiqn((unsigned char *)name); 1282 if (IS_ERR(tiqn)) 1283 return ERR_CAST(tiqn); 1284 /* 1285 * Setup struct iscsi_wwn_stat_grps for se_wwn->fabric_stat_group. 1286 */ 1287 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group; 1288 1289 stats_cg->default_groups = kzalloc(sizeof(struct config_group) * 6, 1290 GFP_KERNEL); 1291 if (!stats_cg->default_groups) { 1292 pr_err("Unable to allocate memory for" 1293 " stats_cg->default_groups\n"); 1294 iscsit_del_tiqn(tiqn); 1295 return ERR_PTR(-ENOMEM); 1296 } 1297 1298 stats_cg->default_groups[0] = &WWN_STAT_GRPS(tiqn)->iscsi_instance_group; 1299 stats_cg->default_groups[1] = &WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group; 1300 stats_cg->default_groups[2] = &WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group; 1301 stats_cg->default_groups[3] = &WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group; 1302 stats_cg->default_groups[4] = &WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group; 1303 stats_cg->default_groups[5] = NULL; 1304 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_instance_group, 1305 "iscsi_instance", &iscsi_stat_instance_cit); 1306 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group, 1307 "iscsi_sess_err", &iscsi_stat_sess_err_cit); 1308 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group, 1309 "iscsi_tgt_attr", &iscsi_stat_tgt_attr_cit); 1310 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group, 1311 "iscsi_login_stats", &iscsi_stat_login_cit); 1312 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group, 1313 "iscsi_logout_stats", &iscsi_stat_logout_cit); 1314 1315 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn); 1316 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated Node:" 1317 " %s\n", name); 1318 return &tiqn->tiqn_wwn; 1319 } 1320 1321 void lio_target_call_coredeltiqn( 1322 struct se_wwn *wwn) 1323 { 1324 struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn); 1325 struct config_item *df_item; 1326 struct config_group *stats_cg; 1327 int i; 1328 1329 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group; 1330 for (i = 0; stats_cg->default_groups[i]; i++) { 1331 df_item = &stats_cg->default_groups[i]->cg_item; 1332 stats_cg->default_groups[i] = NULL; 1333 config_item_put(df_item); 1334 } 1335 kfree(stats_cg->default_groups); 1336 1337 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s\n", 1338 tiqn->tiqn); 1339 iscsit_del_tiqn(tiqn); 1340 } 1341 1342 /* End LIO-Target TIQN struct contig_lio_target_cit */ 1343 1344 /* Start lio_target_discovery_auth_cit */ 1345 1346 #define DEF_DISC_AUTH_STR(name, flags) \ 1347 __DEF_NACL_AUTH_STR(disc, name, flags) \ 1348 static ssize_t iscsi_disc_show_##name( \ 1349 struct target_fabric_configfs *tf, \ 1350 char *page) \ 1351 { \ 1352 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \ 1353 page); \ 1354 } \ 1355 static ssize_t iscsi_disc_store_##name( \ 1356 struct target_fabric_configfs *tf, \ 1357 const char *page, \ 1358 size_t count) \ 1359 { \ 1360 return __iscsi_disc_store_##name(&iscsit_global->discovery_acl, \ 1361 page, count); \ 1362 } 1363 1364 #define DEF_DISC_AUTH_INT(name) \ 1365 __DEF_NACL_AUTH_INT(disc, name) \ 1366 static ssize_t iscsi_disc_show_##name( \ 1367 struct target_fabric_configfs *tf, \ 1368 char *page) \ 1369 { \ 1370 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \ 1371 page); \ 1372 } 1373 1374 #define DISC_AUTH_ATTR(_name, _mode) TF_DISC_ATTR(iscsi, _name, _mode) 1375 #define DISC_AUTH_ATTR_RO(_name) TF_DISC_ATTR_RO(iscsi, _name) 1376 1377 /* 1378 * One-way authentication userid 1379 */ 1380 DEF_DISC_AUTH_STR(userid, NAF_USERID_SET); 1381 DISC_AUTH_ATTR(userid, S_IRUGO | S_IWUSR); 1382 /* 1383 * One-way authentication password 1384 */ 1385 DEF_DISC_AUTH_STR(password, NAF_PASSWORD_SET); 1386 DISC_AUTH_ATTR(password, S_IRUGO | S_IWUSR); 1387 /* 1388 * Enforce mutual authentication 1389 */ 1390 DEF_DISC_AUTH_INT(authenticate_target); 1391 DISC_AUTH_ATTR_RO(authenticate_target); 1392 /* 1393 * Mutual authentication userid 1394 */ 1395 DEF_DISC_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); 1396 DISC_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR); 1397 /* 1398 * Mutual authentication password 1399 */ 1400 DEF_DISC_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); 1401 DISC_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR); 1402 1403 /* 1404 * enforce_discovery_auth 1405 */ 1406 static ssize_t iscsi_disc_show_enforce_discovery_auth( 1407 struct target_fabric_configfs *tf, 1408 char *page) 1409 { 1410 struct iscsi_node_auth *discovery_auth = &iscsit_global->discovery_acl.node_auth; 1411 1412 return sprintf(page, "%d\n", discovery_auth->enforce_discovery_auth); 1413 } 1414 1415 static ssize_t iscsi_disc_store_enforce_discovery_auth( 1416 struct target_fabric_configfs *tf, 1417 const char *page, 1418 size_t count) 1419 { 1420 struct iscsi_param *param; 1421 struct iscsi_portal_group *discovery_tpg = iscsit_global->discovery_tpg; 1422 char *endptr; 1423 u32 op; 1424 1425 op = simple_strtoul(page, &endptr, 0); 1426 if ((op != 1) && (op != 0)) { 1427 pr_err("Illegal value for enforce_discovery_auth:" 1428 " %u\n", op); 1429 return -EINVAL; 1430 } 1431 1432 if (!discovery_tpg) { 1433 pr_err("iscsit_global->discovery_tpg is NULL\n"); 1434 return -EINVAL; 1435 } 1436 1437 param = iscsi_find_param_from_key(AUTHMETHOD, 1438 discovery_tpg->param_list); 1439 if (!param) 1440 return -EINVAL; 1441 1442 if (op) { 1443 /* 1444 * Reset the AuthMethod key to CHAP. 1445 */ 1446 if (iscsi_update_param_value(param, CHAP) < 0) 1447 return -EINVAL; 1448 1449 discovery_tpg->tpg_attrib.authentication = 1; 1450 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 1; 1451 pr_debug("LIO-CORE[0] Successfully enabled" 1452 " authentication enforcement for iSCSI" 1453 " Discovery TPG\n"); 1454 } else { 1455 /* 1456 * Reset the AuthMethod key to CHAP,None 1457 */ 1458 if (iscsi_update_param_value(param, "CHAP,None") < 0) 1459 return -EINVAL; 1460 1461 discovery_tpg->tpg_attrib.authentication = 0; 1462 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 0; 1463 pr_debug("LIO-CORE[0] Successfully disabled" 1464 " authentication enforcement for iSCSI" 1465 " Discovery TPG\n"); 1466 } 1467 1468 return count; 1469 } 1470 1471 DISC_AUTH_ATTR(enforce_discovery_auth, S_IRUGO | S_IWUSR); 1472 1473 static struct configfs_attribute *lio_target_discovery_auth_attrs[] = { 1474 &iscsi_disc_userid.attr, 1475 &iscsi_disc_password.attr, 1476 &iscsi_disc_authenticate_target.attr, 1477 &iscsi_disc_userid_mutual.attr, 1478 &iscsi_disc_password_mutual.attr, 1479 &iscsi_disc_enforce_discovery_auth.attr, 1480 NULL, 1481 }; 1482 1483 /* End lio_target_discovery_auth_cit */ 1484 1485 /* Start functions for target_core_fabric_ops */ 1486 1487 static char *iscsi_get_fabric_name(void) 1488 { 1489 return "iSCSI"; 1490 } 1491 1492 static u32 iscsi_get_task_tag(struct se_cmd *se_cmd) 1493 { 1494 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1495 1496 return cmd->init_task_tag; 1497 } 1498 1499 static int iscsi_get_cmd_state(struct se_cmd *se_cmd) 1500 { 1501 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1502 1503 return cmd->i_state; 1504 } 1505 1506 static u32 lio_sess_get_index(struct se_session *se_sess) 1507 { 1508 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1509 1510 return sess->session_index; 1511 } 1512 1513 static u32 lio_sess_get_initiator_sid( 1514 struct se_session *se_sess, 1515 unsigned char *buf, 1516 u32 size) 1517 { 1518 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1519 /* 1520 * iSCSI Initiator Session Identifier from RFC-3720. 1521 */ 1522 return snprintf(buf, size, "%02x%02x%02x%02x%02x%02x", 1523 sess->isid[0], sess->isid[1], sess->isid[2], 1524 sess->isid[3], sess->isid[4], sess->isid[5]); 1525 } 1526 1527 static int lio_queue_data_in(struct se_cmd *se_cmd) 1528 { 1529 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1530 1531 cmd->i_state = ISTATE_SEND_DATAIN; 1532 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); 1533 return 0; 1534 } 1535 1536 static int lio_write_pending(struct se_cmd *se_cmd) 1537 { 1538 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1539 1540 if (!cmd->immediate_data && !cmd->unsolicited_data) 1541 return iscsit_build_r2ts_for_cmd(cmd, cmd->conn, 1); 1542 1543 return 0; 1544 } 1545 1546 static int lio_write_pending_status(struct se_cmd *se_cmd) 1547 { 1548 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1549 int ret; 1550 1551 spin_lock_bh(&cmd->istate_lock); 1552 ret = !(cmd->cmd_flags & ICF_GOT_LAST_DATAOUT); 1553 spin_unlock_bh(&cmd->istate_lock); 1554 1555 return ret; 1556 } 1557 1558 static int lio_queue_status(struct se_cmd *se_cmd) 1559 { 1560 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1561 1562 cmd->i_state = ISTATE_SEND_STATUS; 1563 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); 1564 return 0; 1565 } 1566 1567 static u16 lio_set_fabric_sense_len(struct se_cmd *se_cmd, u32 sense_length) 1568 { 1569 unsigned char *buffer = se_cmd->sense_buffer; 1570 /* 1571 * From RFC-3720 10.4.7. Data Segment - Sense and Response Data Segment 1572 * 16-bit SenseLength. 1573 */ 1574 buffer[0] = ((sense_length >> 8) & 0xff); 1575 buffer[1] = (sense_length & 0xff); 1576 /* 1577 * Return two byte offset into allocated sense_buffer. 1578 */ 1579 return 2; 1580 } 1581 1582 static u16 lio_get_fabric_sense_len(void) 1583 { 1584 /* 1585 * Return two byte offset into allocated sense_buffer. 1586 */ 1587 return 2; 1588 } 1589 1590 static int lio_queue_tm_rsp(struct se_cmd *se_cmd) 1591 { 1592 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1593 1594 cmd->i_state = ISTATE_SEND_TASKMGTRSP; 1595 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); 1596 return 0; 1597 } 1598 1599 static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg) 1600 { 1601 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1602 1603 return &tpg->tpg_tiqn->tiqn[0]; 1604 } 1605 1606 static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg) 1607 { 1608 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1609 1610 return tpg->tpgt; 1611 } 1612 1613 static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg) 1614 { 1615 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1616 1617 return ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth; 1618 } 1619 1620 static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg) 1621 { 1622 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1623 1624 return ISCSI_TPG_ATTRIB(tpg)->generate_node_acls; 1625 } 1626 1627 static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg) 1628 { 1629 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1630 1631 return ISCSI_TPG_ATTRIB(tpg)->cache_dynamic_acls; 1632 } 1633 1634 static int lio_tpg_check_demo_mode_write_protect( 1635 struct se_portal_group *se_tpg) 1636 { 1637 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1638 1639 return ISCSI_TPG_ATTRIB(tpg)->demo_mode_write_protect; 1640 } 1641 1642 static int lio_tpg_check_prod_mode_write_protect( 1643 struct se_portal_group *se_tpg) 1644 { 1645 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1646 1647 return ISCSI_TPG_ATTRIB(tpg)->prod_mode_write_protect; 1648 } 1649 1650 static void lio_tpg_release_fabric_acl( 1651 struct se_portal_group *se_tpg, 1652 struct se_node_acl *se_acl) 1653 { 1654 struct iscsi_node_acl *acl = container_of(se_acl, 1655 struct iscsi_node_acl, se_node_acl); 1656 kfree(acl); 1657 } 1658 1659 /* 1660 * Called with spin_lock_bh(struct se_portal_group->session_lock) held.. 1661 * 1662 * Also, this function calls iscsit_inc_session_usage_count() on the 1663 * struct iscsi_session in question. 1664 */ 1665 static int lio_tpg_shutdown_session(struct se_session *se_sess) 1666 { 1667 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1668 1669 spin_lock(&sess->conn_lock); 1670 if (atomic_read(&sess->session_fall_back_to_erl0) || 1671 atomic_read(&sess->session_logout) || 1672 (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) { 1673 spin_unlock(&sess->conn_lock); 1674 return 0; 1675 } 1676 atomic_set(&sess->session_reinstatement, 1); 1677 spin_unlock(&sess->conn_lock); 1678 1679 iscsit_stop_time2retain_timer(sess); 1680 iscsit_stop_session(sess, 1, 1); 1681 1682 return 1; 1683 } 1684 1685 /* 1686 * Calls iscsit_dec_session_usage_count() as inverse of 1687 * lio_tpg_shutdown_session() 1688 */ 1689 static void lio_tpg_close_session(struct se_session *se_sess) 1690 { 1691 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1692 /* 1693 * If the iSCSI Session for the iSCSI Initiator Node exists, 1694 * forcefully shutdown the iSCSI NEXUS. 1695 */ 1696 iscsit_close_session(sess); 1697 } 1698 1699 static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg) 1700 { 1701 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1702 1703 return tpg->tpg_tiqn->tiqn_index; 1704 } 1705 1706 static void lio_set_default_node_attributes(struct se_node_acl *se_acl) 1707 { 1708 struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl, 1709 se_node_acl); 1710 1711 ISCSI_NODE_ATTRIB(acl)->nacl = acl; 1712 iscsit_set_default_node_attribues(acl); 1713 } 1714 1715 static void lio_release_cmd(struct se_cmd *se_cmd) 1716 { 1717 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1718 1719 iscsit_release_cmd(cmd); 1720 } 1721 1722 /* End functions for target_core_fabric_ops */ 1723 1724 int iscsi_target_register_configfs(void) 1725 { 1726 struct target_fabric_configfs *fabric; 1727 int ret; 1728 1729 lio_target_fabric_configfs = NULL; 1730 fabric = target_fabric_configfs_init(THIS_MODULE, "iscsi"); 1731 if (IS_ERR(fabric)) { 1732 pr_err("target_fabric_configfs_init() for" 1733 " LIO-Target failed!\n"); 1734 return PTR_ERR(fabric); 1735 } 1736 /* 1737 * Setup the fabric API of function pointers used by target_core_mod.. 1738 */ 1739 fabric->tf_ops.get_fabric_name = &iscsi_get_fabric_name; 1740 fabric->tf_ops.get_fabric_proto_ident = &iscsi_get_fabric_proto_ident; 1741 fabric->tf_ops.tpg_get_wwn = &lio_tpg_get_endpoint_wwn; 1742 fabric->tf_ops.tpg_get_tag = &lio_tpg_get_tag; 1743 fabric->tf_ops.tpg_get_default_depth = &lio_tpg_get_default_depth; 1744 fabric->tf_ops.tpg_get_pr_transport_id = &iscsi_get_pr_transport_id; 1745 fabric->tf_ops.tpg_get_pr_transport_id_len = 1746 &iscsi_get_pr_transport_id_len; 1747 fabric->tf_ops.tpg_parse_pr_out_transport_id = 1748 &iscsi_parse_pr_out_transport_id; 1749 fabric->tf_ops.tpg_check_demo_mode = &lio_tpg_check_demo_mode; 1750 fabric->tf_ops.tpg_check_demo_mode_cache = 1751 &lio_tpg_check_demo_mode_cache; 1752 fabric->tf_ops.tpg_check_demo_mode_write_protect = 1753 &lio_tpg_check_demo_mode_write_protect; 1754 fabric->tf_ops.tpg_check_prod_mode_write_protect = 1755 &lio_tpg_check_prod_mode_write_protect; 1756 fabric->tf_ops.tpg_alloc_fabric_acl = &lio_tpg_alloc_fabric_acl; 1757 fabric->tf_ops.tpg_release_fabric_acl = &lio_tpg_release_fabric_acl; 1758 fabric->tf_ops.tpg_get_inst_index = &lio_tpg_get_inst_index; 1759 fabric->tf_ops.release_cmd = &lio_release_cmd; 1760 fabric->tf_ops.shutdown_session = &lio_tpg_shutdown_session; 1761 fabric->tf_ops.close_session = &lio_tpg_close_session; 1762 fabric->tf_ops.sess_get_index = &lio_sess_get_index; 1763 fabric->tf_ops.sess_get_initiator_sid = &lio_sess_get_initiator_sid; 1764 fabric->tf_ops.write_pending = &lio_write_pending; 1765 fabric->tf_ops.write_pending_status = &lio_write_pending_status; 1766 fabric->tf_ops.set_default_node_attributes = 1767 &lio_set_default_node_attributes; 1768 fabric->tf_ops.get_task_tag = &iscsi_get_task_tag; 1769 fabric->tf_ops.get_cmd_state = &iscsi_get_cmd_state; 1770 fabric->tf_ops.queue_data_in = &lio_queue_data_in; 1771 fabric->tf_ops.queue_status = &lio_queue_status; 1772 fabric->tf_ops.queue_tm_rsp = &lio_queue_tm_rsp; 1773 fabric->tf_ops.set_fabric_sense_len = &lio_set_fabric_sense_len; 1774 fabric->tf_ops.get_fabric_sense_len = &lio_get_fabric_sense_len; 1775 /* 1776 * Setup function pointers for generic logic in target_core_fabric_configfs.c 1777 */ 1778 fabric->tf_ops.fabric_make_wwn = &lio_target_call_coreaddtiqn; 1779 fabric->tf_ops.fabric_drop_wwn = &lio_target_call_coredeltiqn; 1780 fabric->tf_ops.fabric_make_tpg = &lio_target_tiqn_addtpg; 1781 fabric->tf_ops.fabric_drop_tpg = &lio_target_tiqn_deltpg; 1782 fabric->tf_ops.fabric_post_link = NULL; 1783 fabric->tf_ops.fabric_pre_unlink = NULL; 1784 fabric->tf_ops.fabric_make_np = &lio_target_call_addnptotpg; 1785 fabric->tf_ops.fabric_drop_np = &lio_target_call_delnpfromtpg; 1786 fabric->tf_ops.fabric_make_nodeacl = &lio_target_make_nodeacl; 1787 fabric->tf_ops.fabric_drop_nodeacl = &lio_target_drop_nodeacl; 1788 /* 1789 * Setup default attribute lists for various fabric->tf_cit_tmpl 1790 * sturct config_item_type's 1791 */ 1792 TF_CIT_TMPL(fabric)->tfc_discovery_cit.ct_attrs = lio_target_discovery_auth_attrs; 1793 TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = lio_target_wwn_attrs; 1794 TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = lio_target_tpg_attrs; 1795 TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = lio_target_tpg_attrib_attrs; 1796 TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = lio_target_tpg_param_attrs; 1797 TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = lio_target_portal_attrs; 1798 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = lio_target_initiator_attrs; 1799 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = lio_target_nacl_attrib_attrs; 1800 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = lio_target_nacl_auth_attrs; 1801 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = lio_target_nacl_param_attrs; 1802 1803 ret = target_fabric_configfs_register(fabric); 1804 if (ret < 0) { 1805 pr_err("target_fabric_configfs_register() for" 1806 " LIO-Target failed!\n"); 1807 target_fabric_configfs_free(fabric); 1808 return ret; 1809 } 1810 1811 lio_target_fabric_configfs = fabric; 1812 pr_debug("LIO_TARGET[0] - Set fabric ->" 1813 " lio_target_fabric_configfs\n"); 1814 return 0; 1815 } 1816 1817 1818 void iscsi_target_deregister_configfs(void) 1819 { 1820 if (!lio_target_fabric_configfs) 1821 return; 1822 /* 1823 * Shutdown discovery sessions and disable discovery TPG 1824 */ 1825 if (iscsit_global->discovery_tpg) 1826 iscsit_tpg_disable_portal_group(iscsit_global->discovery_tpg, 1); 1827 1828 target_fabric_configfs_deregister(lio_target_fabric_configfs); 1829 lio_target_fabric_configfs = NULL; 1830 pr_debug("LIO_TARGET[0] - Cleared" 1831 " lio_target_fabric_configfs\n"); 1832 } 1833