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