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 acl = container_of(se_nacl_new, struct iscsi_node_acl, 816 se_node_acl); 817 818 cmdsn_depth = ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth; 819 /* 820 * se_nacl_new may be released by core_tpg_add_initiator_node_acl() 821 * when converting a NdoeACL from demo mode -> explict 822 */ 823 se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new, 824 name, cmdsn_depth); 825 if (IS_ERR(se_nacl)) 826 return se_nacl; 827 828 stats_cg = &acl->se_node_acl.acl_fabric_stat_group; 829 830 stats_cg->default_groups = kzalloc(sizeof(struct config_group) * 2, 831 GFP_KERNEL); 832 if (!stats_cg->default_groups) { 833 pr_err("Unable to allocate memory for" 834 " stats_cg->default_groups\n"); 835 core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1); 836 kfree(acl); 837 return ERR_PTR(-ENOMEM); 838 } 839 840 stats_cg->default_groups[0] = &NODE_STAT_GRPS(acl)->iscsi_sess_stats_group; 841 stats_cg->default_groups[1] = NULL; 842 config_group_init_type_name(&NODE_STAT_GRPS(acl)->iscsi_sess_stats_group, 843 "iscsi_sess_stats", &iscsi_stat_sess_cit); 844 845 return se_nacl; 846 } 847 848 static void lio_target_drop_nodeacl( 849 struct se_node_acl *se_nacl) 850 { 851 struct se_portal_group *se_tpg = se_nacl->se_tpg; 852 struct iscsi_node_acl *acl = container_of(se_nacl, 853 struct iscsi_node_acl, se_node_acl); 854 struct config_item *df_item; 855 struct config_group *stats_cg; 856 int i; 857 858 stats_cg = &acl->se_node_acl.acl_fabric_stat_group; 859 for (i = 0; stats_cg->default_groups[i]; i++) { 860 df_item = &stats_cg->default_groups[i]->cg_item; 861 stats_cg->default_groups[i] = NULL; 862 config_item_put(df_item); 863 } 864 kfree(stats_cg->default_groups); 865 866 core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1); 867 kfree(acl); 868 } 869 870 /* End items for lio_target_acl_cit */ 871 872 /* Start items for lio_target_tpg_attrib_cit */ 873 874 #define DEF_TPG_ATTRIB(name) \ 875 \ 876 static ssize_t iscsi_tpg_attrib_show_##name( \ 877 struct se_portal_group *se_tpg, \ 878 char *page) \ 879 { \ 880 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 881 struct iscsi_portal_group, tpg_se_tpg); \ 882 ssize_t rb; \ 883 \ 884 if (iscsit_get_tpg(tpg) < 0) \ 885 return -EINVAL; \ 886 \ 887 rb = sprintf(page, "%u\n", ISCSI_TPG_ATTRIB(tpg)->name); \ 888 iscsit_put_tpg(tpg); \ 889 return rb; \ 890 } \ 891 \ 892 static ssize_t iscsi_tpg_attrib_store_##name( \ 893 struct se_portal_group *se_tpg, \ 894 const char *page, \ 895 size_t count) \ 896 { \ 897 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 898 struct iscsi_portal_group, tpg_se_tpg); \ 899 char *endptr; \ 900 u32 val; \ 901 int ret; \ 902 \ 903 if (iscsit_get_tpg(tpg) < 0) \ 904 return -EINVAL; \ 905 \ 906 val = simple_strtoul(page, &endptr, 0); \ 907 ret = iscsit_ta_##name(tpg, val); \ 908 if (ret < 0) \ 909 goto out; \ 910 \ 911 iscsit_put_tpg(tpg); \ 912 return count; \ 913 out: \ 914 iscsit_put_tpg(tpg); \ 915 return ret; \ 916 } 917 918 #define TPG_ATTR(_name, _mode) TF_TPG_ATTRIB_ATTR(iscsi, _name, _mode); 919 920 /* 921 * Define iscsi_tpg_attrib_s_authentication 922 */ 923 DEF_TPG_ATTRIB(authentication); 924 TPG_ATTR(authentication, S_IRUGO | S_IWUSR); 925 /* 926 * Define iscsi_tpg_attrib_s_login_timeout 927 */ 928 DEF_TPG_ATTRIB(login_timeout); 929 TPG_ATTR(login_timeout, S_IRUGO | S_IWUSR); 930 /* 931 * Define iscsi_tpg_attrib_s_netif_timeout 932 */ 933 DEF_TPG_ATTRIB(netif_timeout); 934 TPG_ATTR(netif_timeout, S_IRUGO | S_IWUSR); 935 /* 936 * Define iscsi_tpg_attrib_s_generate_node_acls 937 */ 938 DEF_TPG_ATTRIB(generate_node_acls); 939 TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR); 940 /* 941 * Define iscsi_tpg_attrib_s_default_cmdsn_depth 942 */ 943 DEF_TPG_ATTRIB(default_cmdsn_depth); 944 TPG_ATTR(default_cmdsn_depth, S_IRUGO | S_IWUSR); 945 /* 946 Define iscsi_tpg_attrib_s_cache_dynamic_acls 947 */ 948 DEF_TPG_ATTRIB(cache_dynamic_acls); 949 TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR); 950 /* 951 * Define iscsi_tpg_attrib_s_demo_mode_write_protect 952 */ 953 DEF_TPG_ATTRIB(demo_mode_write_protect); 954 TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR); 955 /* 956 * Define iscsi_tpg_attrib_s_prod_mode_write_protect 957 */ 958 DEF_TPG_ATTRIB(prod_mode_write_protect); 959 TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR); 960 961 static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = { 962 &iscsi_tpg_attrib_authentication.attr, 963 &iscsi_tpg_attrib_login_timeout.attr, 964 &iscsi_tpg_attrib_netif_timeout.attr, 965 &iscsi_tpg_attrib_generate_node_acls.attr, 966 &iscsi_tpg_attrib_default_cmdsn_depth.attr, 967 &iscsi_tpg_attrib_cache_dynamic_acls.attr, 968 &iscsi_tpg_attrib_demo_mode_write_protect.attr, 969 &iscsi_tpg_attrib_prod_mode_write_protect.attr, 970 NULL, 971 }; 972 973 /* End items for lio_target_tpg_attrib_cit */ 974 975 /* Start items for lio_target_tpg_param_cit */ 976 977 #define DEF_TPG_PARAM(name) \ 978 static ssize_t iscsi_tpg_param_show_##name( \ 979 struct se_portal_group *se_tpg, \ 980 char *page) \ 981 { \ 982 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 983 struct iscsi_portal_group, tpg_se_tpg); \ 984 struct iscsi_param *param; \ 985 ssize_t rb; \ 986 \ 987 if (iscsit_get_tpg(tpg) < 0) \ 988 return -EINVAL; \ 989 \ 990 param = iscsi_find_param_from_key(__stringify(name), \ 991 tpg->param_list); \ 992 if (!param) { \ 993 iscsit_put_tpg(tpg); \ 994 return -EINVAL; \ 995 } \ 996 rb = snprintf(page, PAGE_SIZE, "%s\n", param->value); \ 997 \ 998 iscsit_put_tpg(tpg); \ 999 return rb; \ 1000 } \ 1001 static ssize_t iscsi_tpg_param_store_##name( \ 1002 struct se_portal_group *se_tpg, \ 1003 const char *page, \ 1004 size_t count) \ 1005 { \ 1006 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 1007 struct iscsi_portal_group, tpg_se_tpg); \ 1008 char *buf; \ 1009 int ret; \ 1010 \ 1011 buf = kzalloc(PAGE_SIZE, GFP_KERNEL); \ 1012 if (!buf) \ 1013 return -ENOMEM; \ 1014 snprintf(buf, PAGE_SIZE, "%s=%s", __stringify(name), page); \ 1015 buf[strlen(buf)-1] = '\0'; /* Kill newline */ \ 1016 \ 1017 if (iscsit_get_tpg(tpg) < 0) { \ 1018 kfree(buf); \ 1019 return -EINVAL; \ 1020 } \ 1021 \ 1022 ret = iscsi_change_param_value(buf, tpg->param_list, 1); \ 1023 if (ret < 0) \ 1024 goto out; \ 1025 \ 1026 kfree(buf); \ 1027 iscsit_put_tpg(tpg); \ 1028 return count; \ 1029 out: \ 1030 kfree(buf); \ 1031 iscsit_put_tpg(tpg); \ 1032 return -EINVAL; \ 1033 } 1034 1035 #define TPG_PARAM_ATTR(_name, _mode) TF_TPG_PARAM_ATTR(iscsi, _name, _mode); 1036 1037 DEF_TPG_PARAM(AuthMethod); 1038 TPG_PARAM_ATTR(AuthMethod, S_IRUGO | S_IWUSR); 1039 1040 DEF_TPG_PARAM(HeaderDigest); 1041 TPG_PARAM_ATTR(HeaderDigest, S_IRUGO | S_IWUSR); 1042 1043 DEF_TPG_PARAM(DataDigest); 1044 TPG_PARAM_ATTR(DataDigest, S_IRUGO | S_IWUSR); 1045 1046 DEF_TPG_PARAM(MaxConnections); 1047 TPG_PARAM_ATTR(MaxConnections, S_IRUGO | S_IWUSR); 1048 1049 DEF_TPG_PARAM(TargetAlias); 1050 TPG_PARAM_ATTR(TargetAlias, S_IRUGO | S_IWUSR); 1051 1052 DEF_TPG_PARAM(InitialR2T); 1053 TPG_PARAM_ATTR(InitialR2T, S_IRUGO | S_IWUSR); 1054 1055 DEF_TPG_PARAM(ImmediateData); 1056 TPG_PARAM_ATTR(ImmediateData, S_IRUGO | S_IWUSR); 1057 1058 DEF_TPG_PARAM(MaxRecvDataSegmentLength); 1059 TPG_PARAM_ATTR(MaxRecvDataSegmentLength, S_IRUGO | S_IWUSR); 1060 1061 DEF_TPG_PARAM(MaxBurstLength); 1062 TPG_PARAM_ATTR(MaxBurstLength, S_IRUGO | S_IWUSR); 1063 1064 DEF_TPG_PARAM(FirstBurstLength); 1065 TPG_PARAM_ATTR(FirstBurstLength, S_IRUGO | S_IWUSR); 1066 1067 DEF_TPG_PARAM(DefaultTime2Wait); 1068 TPG_PARAM_ATTR(DefaultTime2Wait, S_IRUGO | S_IWUSR); 1069 1070 DEF_TPG_PARAM(DefaultTime2Retain); 1071 TPG_PARAM_ATTR(DefaultTime2Retain, S_IRUGO | S_IWUSR); 1072 1073 DEF_TPG_PARAM(MaxOutstandingR2T); 1074 TPG_PARAM_ATTR(MaxOutstandingR2T, S_IRUGO | S_IWUSR); 1075 1076 DEF_TPG_PARAM(DataPDUInOrder); 1077 TPG_PARAM_ATTR(DataPDUInOrder, S_IRUGO | S_IWUSR); 1078 1079 DEF_TPG_PARAM(DataSequenceInOrder); 1080 TPG_PARAM_ATTR(DataSequenceInOrder, S_IRUGO | S_IWUSR); 1081 1082 DEF_TPG_PARAM(ErrorRecoveryLevel); 1083 TPG_PARAM_ATTR(ErrorRecoveryLevel, S_IRUGO | S_IWUSR); 1084 1085 DEF_TPG_PARAM(IFMarker); 1086 TPG_PARAM_ATTR(IFMarker, S_IRUGO | S_IWUSR); 1087 1088 DEF_TPG_PARAM(OFMarker); 1089 TPG_PARAM_ATTR(OFMarker, S_IRUGO | S_IWUSR); 1090 1091 DEF_TPG_PARAM(IFMarkInt); 1092 TPG_PARAM_ATTR(IFMarkInt, S_IRUGO | S_IWUSR); 1093 1094 DEF_TPG_PARAM(OFMarkInt); 1095 TPG_PARAM_ATTR(OFMarkInt, S_IRUGO | S_IWUSR); 1096 1097 static struct configfs_attribute *lio_target_tpg_param_attrs[] = { 1098 &iscsi_tpg_param_AuthMethod.attr, 1099 &iscsi_tpg_param_HeaderDigest.attr, 1100 &iscsi_tpg_param_DataDigest.attr, 1101 &iscsi_tpg_param_MaxConnections.attr, 1102 &iscsi_tpg_param_TargetAlias.attr, 1103 &iscsi_tpg_param_InitialR2T.attr, 1104 &iscsi_tpg_param_ImmediateData.attr, 1105 &iscsi_tpg_param_MaxRecvDataSegmentLength.attr, 1106 &iscsi_tpg_param_MaxBurstLength.attr, 1107 &iscsi_tpg_param_FirstBurstLength.attr, 1108 &iscsi_tpg_param_DefaultTime2Wait.attr, 1109 &iscsi_tpg_param_DefaultTime2Retain.attr, 1110 &iscsi_tpg_param_MaxOutstandingR2T.attr, 1111 &iscsi_tpg_param_DataPDUInOrder.attr, 1112 &iscsi_tpg_param_DataSequenceInOrder.attr, 1113 &iscsi_tpg_param_ErrorRecoveryLevel.attr, 1114 &iscsi_tpg_param_IFMarker.attr, 1115 &iscsi_tpg_param_OFMarker.attr, 1116 &iscsi_tpg_param_IFMarkInt.attr, 1117 &iscsi_tpg_param_OFMarkInt.attr, 1118 NULL, 1119 }; 1120 1121 /* End items for lio_target_tpg_param_cit */ 1122 1123 /* Start items for lio_target_tpg_cit */ 1124 1125 static ssize_t lio_target_tpg_show_enable( 1126 struct se_portal_group *se_tpg, 1127 char *page) 1128 { 1129 struct iscsi_portal_group *tpg = container_of(se_tpg, 1130 struct iscsi_portal_group, tpg_se_tpg); 1131 ssize_t len; 1132 1133 spin_lock(&tpg->tpg_state_lock); 1134 len = sprintf(page, "%d\n", 1135 (tpg->tpg_state == TPG_STATE_ACTIVE) ? 1 : 0); 1136 spin_unlock(&tpg->tpg_state_lock); 1137 1138 return len; 1139 } 1140 1141 static ssize_t lio_target_tpg_store_enable( 1142 struct se_portal_group *se_tpg, 1143 const char *page, 1144 size_t count) 1145 { 1146 struct iscsi_portal_group *tpg = container_of(se_tpg, 1147 struct iscsi_portal_group, tpg_se_tpg); 1148 char *endptr; 1149 u32 op; 1150 int ret = 0; 1151 1152 op = simple_strtoul(page, &endptr, 0); 1153 if ((op != 1) && (op != 0)) { 1154 pr_err("Illegal value for tpg_enable: %u\n", op); 1155 return -EINVAL; 1156 } 1157 1158 ret = iscsit_get_tpg(tpg); 1159 if (ret < 0) 1160 return -EINVAL; 1161 1162 if (op) { 1163 ret = iscsit_tpg_enable_portal_group(tpg); 1164 if (ret < 0) 1165 goto out; 1166 } else { 1167 /* 1168 * iscsit_tpg_disable_portal_group() assumes force=1 1169 */ 1170 ret = iscsit_tpg_disable_portal_group(tpg, 1); 1171 if (ret < 0) 1172 goto out; 1173 } 1174 1175 iscsit_put_tpg(tpg); 1176 return count; 1177 out: 1178 iscsit_put_tpg(tpg); 1179 return -EINVAL; 1180 } 1181 1182 TF_TPG_BASE_ATTR(lio_target, enable, S_IRUGO | S_IWUSR); 1183 1184 static struct configfs_attribute *lio_target_tpg_attrs[] = { 1185 &lio_target_tpg_enable.attr, 1186 NULL, 1187 }; 1188 1189 /* End items for lio_target_tpg_cit */ 1190 1191 /* Start items for lio_target_tiqn_cit */ 1192 1193 struct se_portal_group *lio_target_tiqn_addtpg( 1194 struct se_wwn *wwn, 1195 struct config_group *group, 1196 const char *name) 1197 { 1198 struct iscsi_portal_group *tpg; 1199 struct iscsi_tiqn *tiqn; 1200 char *tpgt_str, *end_ptr; 1201 int ret = 0; 1202 unsigned short int tpgt; 1203 1204 tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn); 1205 /* 1206 * Only tpgt_# directory groups can be created below 1207 * target/iscsi/iqn.superturodiskarry/ 1208 */ 1209 tpgt_str = strstr(name, "tpgt_"); 1210 if (!tpgt_str) { 1211 pr_err("Unable to locate \"tpgt_#\" directory" 1212 " group\n"); 1213 return NULL; 1214 } 1215 tpgt_str += 5; /* Skip ahead of "tpgt_" */ 1216 tpgt = (unsigned short int) simple_strtoul(tpgt_str, &end_ptr, 0); 1217 1218 tpg = iscsit_alloc_portal_group(tiqn, tpgt); 1219 if (!tpg) 1220 return NULL; 1221 1222 ret = core_tpg_register( 1223 &lio_target_fabric_configfs->tf_ops, 1224 wwn, &tpg->tpg_se_tpg, tpg, 1225 TRANSPORT_TPG_TYPE_NORMAL); 1226 if (ret < 0) 1227 return NULL; 1228 1229 ret = iscsit_tpg_add_portal_group(tiqn, tpg); 1230 if (ret != 0) 1231 goto out; 1232 1233 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn); 1234 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated TPG: %s\n", 1235 name); 1236 return &tpg->tpg_se_tpg; 1237 out: 1238 core_tpg_deregister(&tpg->tpg_se_tpg); 1239 kfree(tpg); 1240 return NULL; 1241 } 1242 1243 void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg) 1244 { 1245 struct iscsi_portal_group *tpg; 1246 struct iscsi_tiqn *tiqn; 1247 1248 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); 1249 tiqn = tpg->tpg_tiqn; 1250 /* 1251 * iscsit_tpg_del_portal_group() assumes force=1 1252 */ 1253 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> Releasing TPG\n"); 1254 iscsit_tpg_del_portal_group(tiqn, tpg, 1); 1255 } 1256 1257 /* End items for lio_target_tiqn_cit */ 1258 1259 /* Start LIO-Target TIQN struct contig_item lio_target_cit */ 1260 1261 static ssize_t lio_target_wwn_show_attr_lio_version( 1262 struct target_fabric_configfs *tf, 1263 char *page) 1264 { 1265 return sprintf(page, "RisingTide Systems Linux-iSCSI Target "ISCSIT_VERSION"\n"); 1266 } 1267 1268 TF_WWN_ATTR_RO(lio_target, lio_version); 1269 1270 static struct configfs_attribute *lio_target_wwn_attrs[] = { 1271 &lio_target_wwn_lio_version.attr, 1272 NULL, 1273 }; 1274 1275 struct se_wwn *lio_target_call_coreaddtiqn( 1276 struct target_fabric_configfs *tf, 1277 struct config_group *group, 1278 const char *name) 1279 { 1280 struct config_group *stats_cg; 1281 struct iscsi_tiqn *tiqn; 1282 1283 tiqn = iscsit_add_tiqn((unsigned char *)name); 1284 if (IS_ERR(tiqn)) 1285 return ERR_CAST(tiqn); 1286 /* 1287 * Setup struct iscsi_wwn_stat_grps for se_wwn->fabric_stat_group. 1288 */ 1289 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group; 1290 1291 stats_cg->default_groups = kzalloc(sizeof(struct config_group) * 6, 1292 GFP_KERNEL); 1293 if (!stats_cg->default_groups) { 1294 pr_err("Unable to allocate memory for" 1295 " stats_cg->default_groups\n"); 1296 iscsit_del_tiqn(tiqn); 1297 return ERR_PTR(-ENOMEM); 1298 } 1299 1300 stats_cg->default_groups[0] = &WWN_STAT_GRPS(tiqn)->iscsi_instance_group; 1301 stats_cg->default_groups[1] = &WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group; 1302 stats_cg->default_groups[2] = &WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group; 1303 stats_cg->default_groups[3] = &WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group; 1304 stats_cg->default_groups[4] = &WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group; 1305 stats_cg->default_groups[5] = NULL; 1306 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_instance_group, 1307 "iscsi_instance", &iscsi_stat_instance_cit); 1308 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group, 1309 "iscsi_sess_err", &iscsi_stat_sess_err_cit); 1310 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group, 1311 "iscsi_tgt_attr", &iscsi_stat_tgt_attr_cit); 1312 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group, 1313 "iscsi_login_stats", &iscsi_stat_login_cit); 1314 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group, 1315 "iscsi_logout_stats", &iscsi_stat_logout_cit); 1316 1317 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn); 1318 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated Node:" 1319 " %s\n", name); 1320 return &tiqn->tiqn_wwn; 1321 } 1322 1323 void lio_target_call_coredeltiqn( 1324 struct se_wwn *wwn) 1325 { 1326 struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn); 1327 struct config_item *df_item; 1328 struct config_group *stats_cg; 1329 int i; 1330 1331 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group; 1332 for (i = 0; stats_cg->default_groups[i]; i++) { 1333 df_item = &stats_cg->default_groups[i]->cg_item; 1334 stats_cg->default_groups[i] = NULL; 1335 config_item_put(df_item); 1336 } 1337 kfree(stats_cg->default_groups); 1338 1339 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s\n", 1340 tiqn->tiqn); 1341 iscsit_del_tiqn(tiqn); 1342 } 1343 1344 /* End LIO-Target TIQN struct contig_lio_target_cit */ 1345 1346 /* Start lio_target_discovery_auth_cit */ 1347 1348 #define DEF_DISC_AUTH_STR(name, flags) \ 1349 __DEF_NACL_AUTH_STR(disc, name, flags) \ 1350 static ssize_t iscsi_disc_show_##name( \ 1351 struct target_fabric_configfs *tf, \ 1352 char *page) \ 1353 { \ 1354 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \ 1355 page); \ 1356 } \ 1357 static ssize_t iscsi_disc_store_##name( \ 1358 struct target_fabric_configfs *tf, \ 1359 const char *page, \ 1360 size_t count) \ 1361 { \ 1362 return __iscsi_disc_store_##name(&iscsit_global->discovery_acl, \ 1363 page, count); \ 1364 } 1365 1366 #define DEF_DISC_AUTH_INT(name) \ 1367 __DEF_NACL_AUTH_INT(disc, name) \ 1368 static ssize_t iscsi_disc_show_##name( \ 1369 struct target_fabric_configfs *tf, \ 1370 char *page) \ 1371 { \ 1372 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \ 1373 page); \ 1374 } 1375 1376 #define DISC_AUTH_ATTR(_name, _mode) TF_DISC_ATTR(iscsi, _name, _mode) 1377 #define DISC_AUTH_ATTR_RO(_name) TF_DISC_ATTR_RO(iscsi, _name) 1378 1379 /* 1380 * One-way authentication userid 1381 */ 1382 DEF_DISC_AUTH_STR(userid, NAF_USERID_SET); 1383 DISC_AUTH_ATTR(userid, S_IRUGO | S_IWUSR); 1384 /* 1385 * One-way authentication password 1386 */ 1387 DEF_DISC_AUTH_STR(password, NAF_PASSWORD_SET); 1388 DISC_AUTH_ATTR(password, S_IRUGO | S_IWUSR); 1389 /* 1390 * Enforce mutual authentication 1391 */ 1392 DEF_DISC_AUTH_INT(authenticate_target); 1393 DISC_AUTH_ATTR_RO(authenticate_target); 1394 /* 1395 * Mutual authentication userid 1396 */ 1397 DEF_DISC_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); 1398 DISC_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR); 1399 /* 1400 * Mutual authentication password 1401 */ 1402 DEF_DISC_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); 1403 DISC_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR); 1404 1405 /* 1406 * enforce_discovery_auth 1407 */ 1408 static ssize_t iscsi_disc_show_enforce_discovery_auth( 1409 struct target_fabric_configfs *tf, 1410 char *page) 1411 { 1412 struct iscsi_node_auth *discovery_auth = &iscsit_global->discovery_acl.node_auth; 1413 1414 return sprintf(page, "%d\n", discovery_auth->enforce_discovery_auth); 1415 } 1416 1417 static ssize_t iscsi_disc_store_enforce_discovery_auth( 1418 struct target_fabric_configfs *tf, 1419 const char *page, 1420 size_t count) 1421 { 1422 struct iscsi_param *param; 1423 struct iscsi_portal_group *discovery_tpg = iscsit_global->discovery_tpg; 1424 char *endptr; 1425 u32 op; 1426 1427 op = simple_strtoul(page, &endptr, 0); 1428 if ((op != 1) && (op != 0)) { 1429 pr_err("Illegal value for enforce_discovery_auth:" 1430 " %u\n", op); 1431 return -EINVAL; 1432 } 1433 1434 if (!discovery_tpg) { 1435 pr_err("iscsit_global->discovery_tpg is NULL\n"); 1436 return -EINVAL; 1437 } 1438 1439 param = iscsi_find_param_from_key(AUTHMETHOD, 1440 discovery_tpg->param_list); 1441 if (!param) 1442 return -EINVAL; 1443 1444 if (op) { 1445 /* 1446 * Reset the AuthMethod key to CHAP. 1447 */ 1448 if (iscsi_update_param_value(param, CHAP) < 0) 1449 return -EINVAL; 1450 1451 discovery_tpg->tpg_attrib.authentication = 1; 1452 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 1; 1453 pr_debug("LIO-CORE[0] Successfully enabled" 1454 " authentication enforcement for iSCSI" 1455 " Discovery TPG\n"); 1456 } else { 1457 /* 1458 * Reset the AuthMethod key to CHAP,None 1459 */ 1460 if (iscsi_update_param_value(param, "CHAP,None") < 0) 1461 return -EINVAL; 1462 1463 discovery_tpg->tpg_attrib.authentication = 0; 1464 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 0; 1465 pr_debug("LIO-CORE[0] Successfully disabled" 1466 " authentication enforcement for iSCSI" 1467 " Discovery TPG\n"); 1468 } 1469 1470 return count; 1471 } 1472 1473 DISC_AUTH_ATTR(enforce_discovery_auth, S_IRUGO | S_IWUSR); 1474 1475 static struct configfs_attribute *lio_target_discovery_auth_attrs[] = { 1476 &iscsi_disc_userid.attr, 1477 &iscsi_disc_password.attr, 1478 &iscsi_disc_authenticate_target.attr, 1479 &iscsi_disc_userid_mutual.attr, 1480 &iscsi_disc_password_mutual.attr, 1481 &iscsi_disc_enforce_discovery_auth.attr, 1482 NULL, 1483 }; 1484 1485 /* End lio_target_discovery_auth_cit */ 1486 1487 /* Start functions for target_core_fabric_ops */ 1488 1489 static char *iscsi_get_fabric_name(void) 1490 { 1491 return "iSCSI"; 1492 } 1493 1494 static u32 iscsi_get_task_tag(struct se_cmd *se_cmd) 1495 { 1496 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1497 1498 return cmd->init_task_tag; 1499 } 1500 1501 static int iscsi_get_cmd_state(struct se_cmd *se_cmd) 1502 { 1503 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1504 1505 return cmd->i_state; 1506 } 1507 1508 static int iscsi_is_state_remove(struct se_cmd *se_cmd) 1509 { 1510 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1511 1512 return (cmd->i_state == ISTATE_REMOVE); 1513 } 1514 1515 static int lio_sess_logged_in(struct se_session *se_sess) 1516 { 1517 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1518 int ret; 1519 /* 1520 * Called with spin_lock_bh(&tpg_lock); and 1521 * spin_lock(&se_tpg->session_lock); held. 1522 */ 1523 spin_lock(&sess->conn_lock); 1524 ret = (sess->session_state != TARG_SESS_STATE_LOGGED_IN); 1525 spin_unlock(&sess->conn_lock); 1526 1527 return ret; 1528 } 1529 1530 static u32 lio_sess_get_index(struct se_session *se_sess) 1531 { 1532 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1533 1534 return sess->session_index; 1535 } 1536 1537 static u32 lio_sess_get_initiator_sid( 1538 struct se_session *se_sess, 1539 unsigned char *buf, 1540 u32 size) 1541 { 1542 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1543 /* 1544 * iSCSI Initiator Session Identifier from RFC-3720. 1545 */ 1546 return snprintf(buf, size, "%02x%02x%02x%02x%02x%02x", 1547 sess->isid[0], sess->isid[1], sess->isid[2], 1548 sess->isid[3], sess->isid[4], sess->isid[5]); 1549 } 1550 1551 static int lio_queue_data_in(struct se_cmd *se_cmd) 1552 { 1553 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1554 1555 cmd->i_state = ISTATE_SEND_DATAIN; 1556 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); 1557 return 0; 1558 } 1559 1560 static int lio_write_pending(struct se_cmd *se_cmd) 1561 { 1562 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1563 1564 if (!cmd->immediate_data && !cmd->unsolicited_data) 1565 return iscsit_build_r2ts_for_cmd(cmd, cmd->conn, 1); 1566 1567 return 0; 1568 } 1569 1570 static int lio_write_pending_status(struct se_cmd *se_cmd) 1571 { 1572 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1573 int ret; 1574 1575 spin_lock_bh(&cmd->istate_lock); 1576 ret = !(cmd->cmd_flags & ICF_GOT_LAST_DATAOUT); 1577 spin_unlock_bh(&cmd->istate_lock); 1578 1579 return ret; 1580 } 1581 1582 static int lio_queue_status(struct se_cmd *se_cmd) 1583 { 1584 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1585 1586 cmd->i_state = ISTATE_SEND_STATUS; 1587 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); 1588 return 0; 1589 } 1590 1591 static u16 lio_set_fabric_sense_len(struct se_cmd *se_cmd, u32 sense_length) 1592 { 1593 unsigned char *buffer = se_cmd->sense_buffer; 1594 /* 1595 * From RFC-3720 10.4.7. Data Segment - Sense and Response Data Segment 1596 * 16-bit SenseLength. 1597 */ 1598 buffer[0] = ((sense_length >> 8) & 0xff); 1599 buffer[1] = (sense_length & 0xff); 1600 /* 1601 * Return two byte offset into allocated sense_buffer. 1602 */ 1603 return 2; 1604 } 1605 1606 static u16 lio_get_fabric_sense_len(void) 1607 { 1608 /* 1609 * Return two byte offset into allocated sense_buffer. 1610 */ 1611 return 2; 1612 } 1613 1614 static int lio_queue_tm_rsp(struct se_cmd *se_cmd) 1615 { 1616 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1617 1618 cmd->i_state = ISTATE_SEND_TASKMGTRSP; 1619 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); 1620 return 0; 1621 } 1622 1623 static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg) 1624 { 1625 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1626 1627 return &tpg->tpg_tiqn->tiqn[0]; 1628 } 1629 1630 static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg) 1631 { 1632 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1633 1634 return tpg->tpgt; 1635 } 1636 1637 static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg) 1638 { 1639 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1640 1641 return ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth; 1642 } 1643 1644 static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg) 1645 { 1646 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1647 1648 return ISCSI_TPG_ATTRIB(tpg)->generate_node_acls; 1649 } 1650 1651 static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg) 1652 { 1653 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1654 1655 return ISCSI_TPG_ATTRIB(tpg)->cache_dynamic_acls; 1656 } 1657 1658 static int lio_tpg_check_demo_mode_write_protect( 1659 struct se_portal_group *se_tpg) 1660 { 1661 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1662 1663 return ISCSI_TPG_ATTRIB(tpg)->demo_mode_write_protect; 1664 } 1665 1666 static int lio_tpg_check_prod_mode_write_protect( 1667 struct se_portal_group *se_tpg) 1668 { 1669 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1670 1671 return ISCSI_TPG_ATTRIB(tpg)->prod_mode_write_protect; 1672 } 1673 1674 static void lio_tpg_release_fabric_acl( 1675 struct se_portal_group *se_tpg, 1676 struct se_node_acl *se_acl) 1677 { 1678 struct iscsi_node_acl *acl = container_of(se_acl, 1679 struct iscsi_node_acl, se_node_acl); 1680 kfree(acl); 1681 } 1682 1683 /* 1684 * Called with spin_lock_bh(struct se_portal_group->session_lock) held.. 1685 * 1686 * Also, this function calls iscsit_inc_session_usage_count() on the 1687 * struct iscsi_session in question. 1688 */ 1689 static int lio_tpg_shutdown_session(struct se_session *se_sess) 1690 { 1691 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1692 1693 spin_lock(&sess->conn_lock); 1694 if (atomic_read(&sess->session_fall_back_to_erl0) || 1695 atomic_read(&sess->session_logout) || 1696 (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) { 1697 spin_unlock(&sess->conn_lock); 1698 return 0; 1699 } 1700 atomic_set(&sess->session_reinstatement, 1); 1701 spin_unlock(&sess->conn_lock); 1702 1703 iscsit_inc_session_usage_count(sess); 1704 iscsit_stop_time2retain_timer(sess); 1705 1706 return 1; 1707 } 1708 1709 /* 1710 * Calls iscsit_dec_session_usage_count() as inverse of 1711 * lio_tpg_shutdown_session() 1712 */ 1713 static void lio_tpg_close_session(struct se_session *se_sess) 1714 { 1715 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1716 /* 1717 * If the iSCSI Session for the iSCSI Initiator Node exists, 1718 * forcefully shutdown the iSCSI NEXUS. 1719 */ 1720 iscsit_stop_session(sess, 1, 1); 1721 iscsit_dec_session_usage_count(sess); 1722 iscsit_close_session(sess); 1723 } 1724 1725 static void lio_tpg_stop_session( 1726 struct se_session *se_sess, 1727 int sess_sleep, 1728 int conn_sleep) 1729 { 1730 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1731 1732 iscsit_stop_session(sess, sess_sleep, conn_sleep); 1733 } 1734 1735 static void lio_tpg_fall_back_to_erl0(struct se_session *se_sess) 1736 { 1737 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1738 1739 iscsit_fall_back_to_erl0(sess); 1740 } 1741 1742 static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg) 1743 { 1744 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1745 1746 return tpg->tpg_tiqn->tiqn_index; 1747 } 1748 1749 static void lio_set_default_node_attributes(struct se_node_acl *se_acl) 1750 { 1751 struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl, 1752 se_node_acl); 1753 1754 ISCSI_NODE_ATTRIB(acl)->nacl = acl; 1755 iscsit_set_default_node_attribues(acl); 1756 } 1757 1758 static void lio_release_cmd(struct se_cmd *se_cmd) 1759 { 1760 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1761 1762 iscsit_release_cmd(cmd); 1763 } 1764 1765 /* End functions for target_core_fabric_ops */ 1766 1767 int iscsi_target_register_configfs(void) 1768 { 1769 struct target_fabric_configfs *fabric; 1770 int ret; 1771 1772 lio_target_fabric_configfs = NULL; 1773 fabric = target_fabric_configfs_init(THIS_MODULE, "iscsi"); 1774 if (IS_ERR(fabric)) { 1775 pr_err("target_fabric_configfs_init() for" 1776 " LIO-Target failed!\n"); 1777 return PTR_ERR(fabric); 1778 } 1779 /* 1780 * Setup the fabric API of function pointers used by target_core_mod.. 1781 */ 1782 fabric->tf_ops.get_fabric_name = &iscsi_get_fabric_name; 1783 fabric->tf_ops.get_fabric_proto_ident = &iscsi_get_fabric_proto_ident; 1784 fabric->tf_ops.tpg_get_wwn = &lio_tpg_get_endpoint_wwn; 1785 fabric->tf_ops.tpg_get_tag = &lio_tpg_get_tag; 1786 fabric->tf_ops.tpg_get_default_depth = &lio_tpg_get_default_depth; 1787 fabric->tf_ops.tpg_get_pr_transport_id = &iscsi_get_pr_transport_id; 1788 fabric->tf_ops.tpg_get_pr_transport_id_len = 1789 &iscsi_get_pr_transport_id_len; 1790 fabric->tf_ops.tpg_parse_pr_out_transport_id = 1791 &iscsi_parse_pr_out_transport_id; 1792 fabric->tf_ops.tpg_check_demo_mode = &lio_tpg_check_demo_mode; 1793 fabric->tf_ops.tpg_check_demo_mode_cache = 1794 &lio_tpg_check_demo_mode_cache; 1795 fabric->tf_ops.tpg_check_demo_mode_write_protect = 1796 &lio_tpg_check_demo_mode_write_protect; 1797 fabric->tf_ops.tpg_check_prod_mode_write_protect = 1798 &lio_tpg_check_prod_mode_write_protect; 1799 fabric->tf_ops.tpg_alloc_fabric_acl = &lio_tpg_alloc_fabric_acl; 1800 fabric->tf_ops.tpg_release_fabric_acl = &lio_tpg_release_fabric_acl; 1801 fabric->tf_ops.tpg_get_inst_index = &lio_tpg_get_inst_index; 1802 fabric->tf_ops.release_cmd = &lio_release_cmd; 1803 fabric->tf_ops.shutdown_session = &lio_tpg_shutdown_session; 1804 fabric->tf_ops.close_session = &lio_tpg_close_session; 1805 fabric->tf_ops.stop_session = &lio_tpg_stop_session; 1806 fabric->tf_ops.fall_back_to_erl0 = &lio_tpg_fall_back_to_erl0; 1807 fabric->tf_ops.sess_logged_in = &lio_sess_logged_in; 1808 fabric->tf_ops.sess_get_index = &lio_sess_get_index; 1809 fabric->tf_ops.sess_get_initiator_sid = &lio_sess_get_initiator_sid; 1810 fabric->tf_ops.write_pending = &lio_write_pending; 1811 fabric->tf_ops.write_pending_status = &lio_write_pending_status; 1812 fabric->tf_ops.set_default_node_attributes = 1813 &lio_set_default_node_attributes; 1814 fabric->tf_ops.get_task_tag = &iscsi_get_task_tag; 1815 fabric->tf_ops.get_cmd_state = &iscsi_get_cmd_state; 1816 fabric->tf_ops.queue_data_in = &lio_queue_data_in; 1817 fabric->tf_ops.queue_status = &lio_queue_status; 1818 fabric->tf_ops.queue_tm_rsp = &lio_queue_tm_rsp; 1819 fabric->tf_ops.set_fabric_sense_len = &lio_set_fabric_sense_len; 1820 fabric->tf_ops.get_fabric_sense_len = &lio_get_fabric_sense_len; 1821 fabric->tf_ops.is_state_remove = &iscsi_is_state_remove; 1822 /* 1823 * Setup function pointers for generic logic in target_core_fabric_configfs.c 1824 */ 1825 fabric->tf_ops.fabric_make_wwn = &lio_target_call_coreaddtiqn; 1826 fabric->tf_ops.fabric_drop_wwn = &lio_target_call_coredeltiqn; 1827 fabric->tf_ops.fabric_make_tpg = &lio_target_tiqn_addtpg; 1828 fabric->tf_ops.fabric_drop_tpg = &lio_target_tiqn_deltpg; 1829 fabric->tf_ops.fabric_post_link = NULL; 1830 fabric->tf_ops.fabric_pre_unlink = NULL; 1831 fabric->tf_ops.fabric_make_np = &lio_target_call_addnptotpg; 1832 fabric->tf_ops.fabric_drop_np = &lio_target_call_delnpfromtpg; 1833 fabric->tf_ops.fabric_make_nodeacl = &lio_target_make_nodeacl; 1834 fabric->tf_ops.fabric_drop_nodeacl = &lio_target_drop_nodeacl; 1835 /* 1836 * Setup default attribute lists for various fabric->tf_cit_tmpl 1837 * sturct config_item_type's 1838 */ 1839 TF_CIT_TMPL(fabric)->tfc_discovery_cit.ct_attrs = lio_target_discovery_auth_attrs; 1840 TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = lio_target_wwn_attrs; 1841 TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = lio_target_tpg_attrs; 1842 TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = lio_target_tpg_attrib_attrs; 1843 TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = lio_target_tpg_param_attrs; 1844 TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = lio_target_portal_attrs; 1845 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = lio_target_initiator_attrs; 1846 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = lio_target_nacl_attrib_attrs; 1847 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = lio_target_nacl_auth_attrs; 1848 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = lio_target_nacl_param_attrs; 1849 1850 ret = target_fabric_configfs_register(fabric); 1851 if (ret < 0) { 1852 pr_err("target_fabric_configfs_register() for" 1853 " LIO-Target failed!\n"); 1854 target_fabric_configfs_free(fabric); 1855 return ret; 1856 } 1857 1858 lio_target_fabric_configfs = fabric; 1859 pr_debug("LIO_TARGET[0] - Set fabric ->" 1860 " lio_target_fabric_configfs\n"); 1861 return 0; 1862 } 1863 1864 1865 void iscsi_target_deregister_configfs(void) 1866 { 1867 if (!lio_target_fabric_configfs) 1868 return; 1869 /* 1870 * Shutdown discovery sessions and disable discovery TPG 1871 */ 1872 if (iscsit_global->discovery_tpg) 1873 iscsit_tpg_disable_portal_group(iscsit_global->discovery_tpg, 1); 1874 1875 target_fabric_configfs_deregister(lio_target_fabric_configfs); 1876 lio_target_fabric_configfs = NULL; 1877 pr_debug("LIO_TARGET[0] - Cleared" 1878 " lio_target_fabric_configfs\n"); 1879 } 1880