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 <target/target_core_base.h> 25 #include <target/target_core_transport.h> 26 #include <target/target_core_fabric_ops.h> 27 #include <target/target_core_fabric_configfs.h> 28 #include <target/target_core_fabric_lib.h> 29 #include <target/target_core_device.h> 30 #include <target/target_core_tpg.h> 31 #include <target/target_core_configfs.h> 32 #include <target/configfs_macros.h> 33 34 #include "iscsi_target_core.h" 35 #include "iscsi_target_parameters.h" 36 #include "iscsi_target_device.h" 37 #include "iscsi_target_erl0.h" 38 #include "iscsi_target_nodeattrib.h" 39 #include "iscsi_target_tpg.h" 40 #include "iscsi_target_util.h" 41 #include "iscsi_target.h" 42 #include "iscsi_target_stat.h" 43 #include "iscsi_target_configfs.h" 44 45 struct target_fabric_configfs *lio_target_fabric_configfs; 46 47 struct lio_target_configfs_attribute { 48 struct configfs_attribute attr; 49 ssize_t (*show)(void *, char *); 50 ssize_t (*store)(void *, const char *, size_t); 51 }; 52 53 struct iscsi_portal_group *lio_get_tpg_from_tpg_item( 54 struct config_item *item, 55 struct iscsi_tiqn **tiqn_out) 56 { 57 struct se_portal_group *se_tpg = container_of(to_config_group(item), 58 struct se_portal_group, tpg_group); 59 struct iscsi_portal_group *tpg = 60 (struct iscsi_portal_group *)se_tpg->se_tpg_fabric_ptr; 61 int ret; 62 63 if (!tpg) { 64 pr_err("Unable to locate struct iscsi_portal_group " 65 "pointer\n"); 66 return NULL; 67 } 68 ret = iscsit_get_tpg(tpg); 69 if (ret < 0) 70 return NULL; 71 72 *tiqn_out = tpg->tpg_tiqn; 73 return tpg; 74 } 75 76 /* Start items for lio_target_portal_cit */ 77 78 static ssize_t lio_target_np_show_sctp( 79 struct se_tpg_np *se_tpg_np, 80 char *page) 81 { 82 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, 83 struct iscsi_tpg_np, se_tpg_np); 84 struct iscsi_tpg_np *tpg_np_sctp; 85 ssize_t rb; 86 87 tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP); 88 if (tpg_np_sctp) 89 rb = sprintf(page, "1\n"); 90 else 91 rb = sprintf(page, "0\n"); 92 93 return rb; 94 } 95 96 static ssize_t lio_target_np_store_sctp( 97 struct se_tpg_np *se_tpg_np, 98 const char *page, 99 size_t count) 100 { 101 struct iscsi_np *np; 102 struct iscsi_portal_group *tpg; 103 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, 104 struct iscsi_tpg_np, se_tpg_np); 105 struct iscsi_tpg_np *tpg_np_sctp = NULL; 106 char *endptr; 107 u32 op; 108 int ret; 109 110 op = simple_strtoul(page, &endptr, 0); 111 if ((op != 1) && (op != 0)) { 112 pr_err("Illegal value for tpg_enable: %u\n", op); 113 return -EINVAL; 114 } 115 np = tpg_np->tpg_np; 116 if (!np) { 117 pr_err("Unable to locate struct iscsi_np from" 118 " struct iscsi_tpg_np\n"); 119 return -EINVAL; 120 } 121 122 tpg = tpg_np->tpg; 123 if (iscsit_get_tpg(tpg) < 0) 124 return -EINVAL; 125 126 if (op) { 127 /* 128 * Use existing np->np_sockaddr for SCTP network portal reference 129 */ 130 tpg_np_sctp = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr, 131 np->np_ip, tpg_np, ISCSI_SCTP_TCP); 132 if (!tpg_np_sctp || IS_ERR(tpg_np_sctp)) 133 goto out; 134 } else { 135 tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP); 136 if (!tpg_np_sctp) 137 goto out; 138 139 ret = iscsit_tpg_del_network_portal(tpg, tpg_np_sctp); 140 if (ret < 0) 141 goto out; 142 } 143 144 iscsit_put_tpg(tpg); 145 return count; 146 out: 147 iscsit_put_tpg(tpg); 148 return -EINVAL; 149 } 150 151 TF_NP_BASE_ATTR(lio_target, sctp, S_IRUGO | S_IWUSR); 152 153 static struct configfs_attribute *lio_target_portal_attrs[] = { 154 &lio_target_np_sctp.attr, 155 NULL, 156 }; 157 158 /* Stop items for lio_target_portal_cit */ 159 160 /* Start items for lio_target_np_cit */ 161 162 #define MAX_PORTAL_LEN 256 163 164 struct se_tpg_np *lio_target_call_addnptotpg( 165 struct se_portal_group *se_tpg, 166 struct config_group *group, 167 const char *name) 168 { 169 struct iscsi_portal_group *tpg; 170 struct iscsi_tpg_np *tpg_np; 171 char *str, *str2, *ip_str, *port_str; 172 struct __kernel_sockaddr_storage sockaddr; 173 struct sockaddr_in *sock_in; 174 struct sockaddr_in6 *sock_in6; 175 unsigned long port; 176 int ret; 177 char buf[MAX_PORTAL_LEN + 1]; 178 179 if (strlen(name) > MAX_PORTAL_LEN) { 180 pr_err("strlen(name): %d exceeds MAX_PORTAL_LEN: %d\n", 181 (int)strlen(name), MAX_PORTAL_LEN); 182 return ERR_PTR(-EOVERFLOW); 183 } 184 memset(buf, 0, MAX_PORTAL_LEN + 1); 185 snprintf(buf, MAX_PORTAL_LEN + 1, "%s", name); 186 187 memset(&sockaddr, 0, sizeof(struct __kernel_sockaddr_storage)); 188 189 str = strstr(buf, "["); 190 if (str) { 191 const char *end; 192 193 str2 = strstr(str, "]"); 194 if (!str2) { 195 pr_err("Unable to locate trailing \"]\"" 196 " in IPv6 iSCSI network portal address\n"); 197 return ERR_PTR(-EINVAL); 198 } 199 str++; /* Skip over leading "[" */ 200 *str2 = '\0'; /* Terminate the IPv6 address */ 201 str2++; /* Skip over the "]" */ 202 port_str = strstr(str2, ":"); 203 if (!port_str) { 204 pr_err("Unable to locate \":port\"" 205 " in IPv6 iSCSI network portal address\n"); 206 return ERR_PTR(-EINVAL); 207 } 208 *port_str = '\0'; /* Terminate string for IP */ 209 port_str++; /* Skip over ":" */ 210 211 ret = strict_strtoul(port_str, 0, &port); 212 if (ret < 0) { 213 pr_err("strict_strtoul() failed for port_str: %d\n", ret); 214 return ERR_PTR(ret); 215 } 216 sock_in6 = (struct sockaddr_in6 *)&sockaddr; 217 sock_in6->sin6_family = AF_INET6; 218 sock_in6->sin6_port = htons((unsigned short)port); 219 ret = in6_pton(str, IPV6_ADDRESS_SPACE, 220 (void *)&sock_in6->sin6_addr.in6_u, -1, &end); 221 if (ret <= 0) { 222 pr_err("in6_pton returned: %d\n", ret); 223 return ERR_PTR(-EINVAL); 224 } 225 } else { 226 str = ip_str = &buf[0]; 227 port_str = strstr(ip_str, ":"); 228 if (!port_str) { 229 pr_err("Unable to locate \":port\"" 230 " in IPv4 iSCSI network portal address\n"); 231 return ERR_PTR(-EINVAL); 232 } 233 *port_str = '\0'; /* Terminate string for IP */ 234 port_str++; /* Skip over ":" */ 235 236 ret = strict_strtoul(port_str, 0, &port); 237 if (ret < 0) { 238 pr_err("strict_strtoul() failed for port_str: %d\n", ret); 239 return ERR_PTR(ret); 240 } 241 sock_in = (struct sockaddr_in *)&sockaddr; 242 sock_in->sin_family = AF_INET; 243 sock_in->sin_port = htons((unsigned short)port); 244 sock_in->sin_addr.s_addr = in_aton(ip_str); 245 } 246 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); 247 ret = iscsit_get_tpg(tpg); 248 if (ret < 0) 249 return ERR_PTR(-EINVAL); 250 251 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s TPGT: %hu" 252 " PORTAL: %s\n", 253 config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item), 254 tpg->tpgt, name); 255 /* 256 * Assume ISCSI_TCP by default. Other network portals for other 257 * iSCSI fabrics: 258 * 259 * Traditional iSCSI over SCTP (initial support) 260 * iSER/TCP (TODO, hardware available) 261 * iSER/SCTP (TODO, software emulation with osc-iwarp) 262 * iSER/IB (TODO, hardware available) 263 * 264 * can be enabled with atributes under 265 * sys/kernel/config/iscsi/$IQN/$TPG/np/$IP:$PORT/ 266 * 267 */ 268 tpg_np = iscsit_tpg_add_network_portal(tpg, &sockaddr, str, NULL, 269 ISCSI_TCP); 270 if (IS_ERR(tpg_np)) { 271 iscsit_put_tpg(tpg); 272 return ERR_CAST(tpg_np); 273 } 274 pr_debug("LIO_Target_ConfigFS: addnptotpg done!\n"); 275 276 iscsit_put_tpg(tpg); 277 return &tpg_np->se_tpg_np; 278 } 279 280 static void lio_target_call_delnpfromtpg( 281 struct se_tpg_np *se_tpg_np) 282 { 283 struct iscsi_portal_group *tpg; 284 struct iscsi_tpg_np *tpg_np; 285 struct se_portal_group *se_tpg; 286 int ret; 287 288 tpg_np = container_of(se_tpg_np, struct iscsi_tpg_np, se_tpg_np); 289 tpg = tpg_np->tpg; 290 ret = iscsit_get_tpg(tpg); 291 if (ret < 0) 292 return; 293 294 se_tpg = &tpg->tpg_se_tpg; 295 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s TPGT: %hu" 296 " PORTAL: %s:%hu\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item), 297 tpg->tpgt, tpg_np->tpg_np->np_ip, tpg_np->tpg_np->np_port); 298 299 ret = iscsit_tpg_del_network_portal(tpg, tpg_np); 300 if (ret < 0) 301 goto out; 302 303 pr_debug("LIO_Target_ConfigFS: delnpfromtpg done!\n"); 304 out: 305 iscsit_put_tpg(tpg); 306 } 307 308 /* End items for lio_target_np_cit */ 309 310 /* Start items for lio_target_nacl_attrib_cit */ 311 312 #define DEF_NACL_ATTRIB(name) \ 313 static ssize_t iscsi_nacl_attrib_show_##name( \ 314 struct se_node_acl *se_nacl, \ 315 char *page) \ 316 { \ 317 struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \ 318 se_node_acl); \ 319 \ 320 return sprintf(page, "%u\n", ISCSI_NODE_ATTRIB(nacl)->name); \ 321 } \ 322 \ 323 static ssize_t iscsi_nacl_attrib_store_##name( \ 324 struct se_node_acl *se_nacl, \ 325 const char *page, \ 326 size_t count) \ 327 { \ 328 struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \ 329 se_node_acl); \ 330 char *endptr; \ 331 u32 val; \ 332 int ret; \ 333 \ 334 val = simple_strtoul(page, &endptr, 0); \ 335 ret = iscsit_na_##name(nacl, val); \ 336 if (ret < 0) \ 337 return ret; \ 338 \ 339 return count; \ 340 } 341 342 #define NACL_ATTR(_name, _mode) TF_NACL_ATTRIB_ATTR(iscsi, _name, _mode); 343 /* 344 * Define iscsi_node_attrib_s_dataout_timeout 345 */ 346 DEF_NACL_ATTRIB(dataout_timeout); 347 NACL_ATTR(dataout_timeout, S_IRUGO | S_IWUSR); 348 /* 349 * Define iscsi_node_attrib_s_dataout_timeout_retries 350 */ 351 DEF_NACL_ATTRIB(dataout_timeout_retries); 352 NACL_ATTR(dataout_timeout_retries, S_IRUGO | S_IWUSR); 353 /* 354 * Define iscsi_node_attrib_s_default_erl 355 */ 356 DEF_NACL_ATTRIB(default_erl); 357 NACL_ATTR(default_erl, S_IRUGO | S_IWUSR); 358 /* 359 * Define iscsi_node_attrib_s_nopin_timeout 360 */ 361 DEF_NACL_ATTRIB(nopin_timeout); 362 NACL_ATTR(nopin_timeout, S_IRUGO | S_IWUSR); 363 /* 364 * Define iscsi_node_attrib_s_nopin_response_timeout 365 */ 366 DEF_NACL_ATTRIB(nopin_response_timeout); 367 NACL_ATTR(nopin_response_timeout, S_IRUGO | S_IWUSR); 368 /* 369 * Define iscsi_node_attrib_s_random_datain_pdu_offsets 370 */ 371 DEF_NACL_ATTRIB(random_datain_pdu_offsets); 372 NACL_ATTR(random_datain_pdu_offsets, S_IRUGO | S_IWUSR); 373 /* 374 * Define iscsi_node_attrib_s_random_datain_seq_offsets 375 */ 376 DEF_NACL_ATTRIB(random_datain_seq_offsets); 377 NACL_ATTR(random_datain_seq_offsets, S_IRUGO | S_IWUSR); 378 /* 379 * Define iscsi_node_attrib_s_random_r2t_offsets 380 */ 381 DEF_NACL_ATTRIB(random_r2t_offsets); 382 NACL_ATTR(random_r2t_offsets, S_IRUGO | S_IWUSR); 383 384 static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = { 385 &iscsi_nacl_attrib_dataout_timeout.attr, 386 &iscsi_nacl_attrib_dataout_timeout_retries.attr, 387 &iscsi_nacl_attrib_default_erl.attr, 388 &iscsi_nacl_attrib_nopin_timeout.attr, 389 &iscsi_nacl_attrib_nopin_response_timeout.attr, 390 &iscsi_nacl_attrib_random_datain_pdu_offsets.attr, 391 &iscsi_nacl_attrib_random_datain_seq_offsets.attr, 392 &iscsi_nacl_attrib_random_r2t_offsets.attr, 393 NULL, 394 }; 395 396 /* End items for lio_target_nacl_attrib_cit */ 397 398 /* Start items for lio_target_nacl_auth_cit */ 399 400 #define __DEF_NACL_AUTH_STR(prefix, name, flags) \ 401 static ssize_t __iscsi_##prefix##_show_##name( \ 402 struct iscsi_node_acl *nacl, \ 403 char *page) \ 404 { \ 405 struct iscsi_node_auth *auth = &nacl->node_auth; \ 406 \ 407 if (!capable(CAP_SYS_ADMIN)) \ 408 return -EPERM; \ 409 return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \ 410 } \ 411 \ 412 static ssize_t __iscsi_##prefix##_store_##name( \ 413 struct iscsi_node_acl *nacl, \ 414 const char *page, \ 415 size_t count) \ 416 { \ 417 struct iscsi_node_auth *auth = &nacl->node_auth; \ 418 \ 419 if (!capable(CAP_SYS_ADMIN)) \ 420 return -EPERM; \ 421 \ 422 snprintf(auth->name, PAGE_SIZE, "%s", page); \ 423 if (!strncmp("NULL", auth->name, 4)) \ 424 auth->naf_flags &= ~flags; \ 425 else \ 426 auth->naf_flags |= flags; \ 427 \ 428 if ((auth->naf_flags & NAF_USERID_IN_SET) && \ 429 (auth->naf_flags & NAF_PASSWORD_IN_SET)) \ 430 auth->authenticate_target = 1; \ 431 else \ 432 auth->authenticate_target = 0; \ 433 \ 434 return count; \ 435 } 436 437 #define __DEF_NACL_AUTH_INT(prefix, name) \ 438 static ssize_t __iscsi_##prefix##_show_##name( \ 439 struct iscsi_node_acl *nacl, \ 440 char *page) \ 441 { \ 442 struct iscsi_node_auth *auth = &nacl->node_auth; \ 443 \ 444 if (!capable(CAP_SYS_ADMIN)) \ 445 return -EPERM; \ 446 \ 447 return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \ 448 } 449 450 #define DEF_NACL_AUTH_STR(name, flags) \ 451 __DEF_NACL_AUTH_STR(nacl_auth, name, flags) \ 452 static ssize_t iscsi_nacl_auth_show_##name( \ 453 struct se_node_acl *nacl, \ 454 char *page) \ 455 { \ 456 return __iscsi_nacl_auth_show_##name(container_of(nacl, \ 457 struct iscsi_node_acl, se_node_acl), page); \ 458 } \ 459 static ssize_t iscsi_nacl_auth_store_##name( \ 460 struct se_node_acl *nacl, \ 461 const char *page, \ 462 size_t count) \ 463 { \ 464 return __iscsi_nacl_auth_store_##name(container_of(nacl, \ 465 struct iscsi_node_acl, se_node_acl), page, count); \ 466 } 467 468 #define DEF_NACL_AUTH_INT(name) \ 469 __DEF_NACL_AUTH_INT(nacl_auth, name) \ 470 static ssize_t iscsi_nacl_auth_show_##name( \ 471 struct se_node_acl *nacl, \ 472 char *page) \ 473 { \ 474 return __iscsi_nacl_auth_show_##name(container_of(nacl, \ 475 struct iscsi_node_acl, se_node_acl), page); \ 476 } 477 478 #define AUTH_ATTR(_name, _mode) TF_NACL_AUTH_ATTR(iscsi, _name, _mode); 479 #define AUTH_ATTR_RO(_name) TF_NACL_AUTH_ATTR_RO(iscsi, _name); 480 481 /* 482 * One-way authentication userid 483 */ 484 DEF_NACL_AUTH_STR(userid, NAF_USERID_SET); 485 AUTH_ATTR(userid, S_IRUGO | S_IWUSR); 486 /* 487 * One-way authentication password 488 */ 489 DEF_NACL_AUTH_STR(password, NAF_PASSWORD_SET); 490 AUTH_ATTR(password, S_IRUGO | S_IWUSR); 491 /* 492 * Enforce mutual authentication 493 */ 494 DEF_NACL_AUTH_INT(authenticate_target); 495 AUTH_ATTR_RO(authenticate_target); 496 /* 497 * Mutual authentication userid 498 */ 499 DEF_NACL_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); 500 AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR); 501 /* 502 * Mutual authentication password 503 */ 504 DEF_NACL_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); 505 AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR); 506 507 static struct configfs_attribute *lio_target_nacl_auth_attrs[] = { 508 &iscsi_nacl_auth_userid.attr, 509 &iscsi_nacl_auth_password.attr, 510 &iscsi_nacl_auth_authenticate_target.attr, 511 &iscsi_nacl_auth_userid_mutual.attr, 512 &iscsi_nacl_auth_password_mutual.attr, 513 NULL, 514 }; 515 516 /* End items for lio_target_nacl_auth_cit */ 517 518 /* Start items for lio_target_nacl_param_cit */ 519 520 #define DEF_NACL_PARAM(name) \ 521 static ssize_t iscsi_nacl_param_show_##name( \ 522 struct se_node_acl *se_nacl, \ 523 char *page) \ 524 { \ 525 struct iscsi_session *sess; \ 526 struct se_session *se_sess; \ 527 ssize_t rb; \ 528 \ 529 spin_lock_bh(&se_nacl->nacl_sess_lock); \ 530 se_sess = se_nacl->nacl_sess; \ 531 if (!se_sess) { \ 532 rb = snprintf(page, PAGE_SIZE, \ 533 "No Active iSCSI Session\n"); \ 534 } else { \ 535 sess = se_sess->fabric_sess_ptr; \ 536 rb = snprintf(page, PAGE_SIZE, "%u\n", \ 537 (u32)sess->sess_ops->name); \ 538 } \ 539 spin_unlock_bh(&se_nacl->nacl_sess_lock); \ 540 \ 541 return rb; \ 542 } 543 544 #define NACL_PARAM_ATTR(_name) TF_NACL_PARAM_ATTR_RO(iscsi, _name); 545 546 DEF_NACL_PARAM(MaxConnections); 547 NACL_PARAM_ATTR(MaxConnections); 548 549 DEF_NACL_PARAM(InitialR2T); 550 NACL_PARAM_ATTR(InitialR2T); 551 552 DEF_NACL_PARAM(ImmediateData); 553 NACL_PARAM_ATTR(ImmediateData); 554 555 DEF_NACL_PARAM(MaxBurstLength); 556 NACL_PARAM_ATTR(MaxBurstLength); 557 558 DEF_NACL_PARAM(FirstBurstLength); 559 NACL_PARAM_ATTR(FirstBurstLength); 560 561 DEF_NACL_PARAM(DefaultTime2Wait); 562 NACL_PARAM_ATTR(DefaultTime2Wait); 563 564 DEF_NACL_PARAM(DefaultTime2Retain); 565 NACL_PARAM_ATTR(DefaultTime2Retain); 566 567 DEF_NACL_PARAM(MaxOutstandingR2T); 568 NACL_PARAM_ATTR(MaxOutstandingR2T); 569 570 DEF_NACL_PARAM(DataPDUInOrder); 571 NACL_PARAM_ATTR(DataPDUInOrder); 572 573 DEF_NACL_PARAM(DataSequenceInOrder); 574 NACL_PARAM_ATTR(DataSequenceInOrder); 575 576 DEF_NACL_PARAM(ErrorRecoveryLevel); 577 NACL_PARAM_ATTR(ErrorRecoveryLevel); 578 579 static struct configfs_attribute *lio_target_nacl_param_attrs[] = { 580 &iscsi_nacl_param_MaxConnections.attr, 581 &iscsi_nacl_param_InitialR2T.attr, 582 &iscsi_nacl_param_ImmediateData.attr, 583 &iscsi_nacl_param_MaxBurstLength.attr, 584 &iscsi_nacl_param_FirstBurstLength.attr, 585 &iscsi_nacl_param_DefaultTime2Wait.attr, 586 &iscsi_nacl_param_DefaultTime2Retain.attr, 587 &iscsi_nacl_param_MaxOutstandingR2T.attr, 588 &iscsi_nacl_param_DataPDUInOrder.attr, 589 &iscsi_nacl_param_DataSequenceInOrder.attr, 590 &iscsi_nacl_param_ErrorRecoveryLevel.attr, 591 NULL, 592 }; 593 594 /* End items for lio_target_nacl_param_cit */ 595 596 /* Start items for lio_target_acl_cit */ 597 598 static ssize_t lio_target_nacl_show_info( 599 struct se_node_acl *se_nacl, 600 char *page) 601 { 602 struct iscsi_session *sess; 603 struct iscsi_conn *conn; 604 struct se_session *se_sess; 605 ssize_t rb = 0; 606 607 spin_lock_bh(&se_nacl->nacl_sess_lock); 608 se_sess = se_nacl->nacl_sess; 609 if (!se_sess) { 610 rb += sprintf(page+rb, "No active iSCSI Session for Initiator" 611 " Endpoint: %s\n", se_nacl->initiatorname); 612 } else { 613 sess = se_sess->fabric_sess_ptr; 614 615 if (sess->sess_ops->InitiatorName) 616 rb += sprintf(page+rb, "InitiatorName: %s\n", 617 sess->sess_ops->InitiatorName); 618 if (sess->sess_ops->InitiatorAlias) 619 rb += sprintf(page+rb, "InitiatorAlias: %s\n", 620 sess->sess_ops->InitiatorAlias); 621 622 rb += sprintf(page+rb, "LIO Session ID: %u " 623 "ISID: 0x%02x %02x %02x %02x %02x %02x " 624 "TSIH: %hu ", sess->sid, 625 sess->isid[0], sess->isid[1], sess->isid[2], 626 sess->isid[3], sess->isid[4], sess->isid[5], 627 sess->tsih); 628 rb += sprintf(page+rb, "SessionType: %s\n", 629 (sess->sess_ops->SessionType) ? 630 "Discovery" : "Normal"); 631 rb += sprintf(page+rb, "Session State: "); 632 switch (sess->session_state) { 633 case TARG_SESS_STATE_FREE: 634 rb += sprintf(page+rb, "TARG_SESS_FREE\n"); 635 break; 636 case TARG_SESS_STATE_ACTIVE: 637 rb += sprintf(page+rb, "TARG_SESS_STATE_ACTIVE\n"); 638 break; 639 case TARG_SESS_STATE_LOGGED_IN: 640 rb += sprintf(page+rb, "TARG_SESS_STATE_LOGGED_IN\n"); 641 break; 642 case TARG_SESS_STATE_FAILED: 643 rb += sprintf(page+rb, "TARG_SESS_STATE_FAILED\n"); 644 break; 645 case TARG_SESS_STATE_IN_CONTINUE: 646 rb += sprintf(page+rb, "TARG_SESS_STATE_IN_CONTINUE\n"); 647 break; 648 default: 649 rb += sprintf(page+rb, "ERROR: Unknown Session" 650 " State!\n"); 651 break; 652 } 653 654 rb += sprintf(page+rb, "---------------------[iSCSI Session" 655 " Values]-----------------------\n"); 656 rb += sprintf(page+rb, " CmdSN/WR : CmdSN/WC : ExpCmdSN" 657 " : MaxCmdSN : ITT : TTT\n"); 658 rb += sprintf(page+rb, " 0x%08x 0x%08x 0x%08x 0x%08x" 659 " 0x%08x 0x%08x\n", 660 sess->cmdsn_window, 661 (sess->max_cmd_sn - sess->exp_cmd_sn) + 1, 662 sess->exp_cmd_sn, sess->max_cmd_sn, 663 sess->init_task_tag, sess->targ_xfer_tag); 664 rb += sprintf(page+rb, "----------------------[iSCSI" 665 " Connections]-------------------------\n"); 666 667 spin_lock(&sess->conn_lock); 668 list_for_each_entry(conn, &sess->sess_conn_list, conn_list) { 669 rb += sprintf(page+rb, "CID: %hu Connection" 670 " State: ", conn->cid); 671 switch (conn->conn_state) { 672 case TARG_CONN_STATE_FREE: 673 rb += sprintf(page+rb, 674 "TARG_CONN_STATE_FREE\n"); 675 break; 676 case TARG_CONN_STATE_XPT_UP: 677 rb += sprintf(page+rb, 678 "TARG_CONN_STATE_XPT_UP\n"); 679 break; 680 case TARG_CONN_STATE_IN_LOGIN: 681 rb += sprintf(page+rb, 682 "TARG_CONN_STATE_IN_LOGIN\n"); 683 break; 684 case TARG_CONN_STATE_LOGGED_IN: 685 rb += sprintf(page+rb, 686 "TARG_CONN_STATE_LOGGED_IN\n"); 687 break; 688 case TARG_CONN_STATE_IN_LOGOUT: 689 rb += sprintf(page+rb, 690 "TARG_CONN_STATE_IN_LOGOUT\n"); 691 break; 692 case TARG_CONN_STATE_LOGOUT_REQUESTED: 693 rb += sprintf(page+rb, 694 "TARG_CONN_STATE_LOGOUT_REQUESTED\n"); 695 break; 696 case TARG_CONN_STATE_CLEANUP_WAIT: 697 rb += sprintf(page+rb, 698 "TARG_CONN_STATE_CLEANUP_WAIT\n"); 699 break; 700 default: 701 rb += sprintf(page+rb, 702 "ERROR: Unknown Connection State!\n"); 703 break; 704 } 705 706 rb += sprintf(page+rb, " Address %s %s", conn->login_ip, 707 (conn->network_transport == ISCSI_TCP) ? 708 "TCP" : "SCTP"); 709 rb += sprintf(page+rb, " StatSN: 0x%08x\n", 710 conn->stat_sn); 711 } 712 spin_unlock(&sess->conn_lock); 713 } 714 spin_unlock_bh(&se_nacl->nacl_sess_lock); 715 716 return rb; 717 } 718 719 TF_NACL_BASE_ATTR_RO(lio_target, info); 720 721 static ssize_t lio_target_nacl_show_cmdsn_depth( 722 struct se_node_acl *se_nacl, 723 char *page) 724 { 725 return sprintf(page, "%u\n", se_nacl->queue_depth); 726 } 727 728 static ssize_t lio_target_nacl_store_cmdsn_depth( 729 struct se_node_acl *se_nacl, 730 const char *page, 731 size_t count) 732 { 733 struct se_portal_group *se_tpg = se_nacl->se_tpg; 734 struct iscsi_portal_group *tpg = container_of(se_tpg, 735 struct iscsi_portal_group, tpg_se_tpg); 736 struct config_item *acl_ci, *tpg_ci, *wwn_ci; 737 char *endptr; 738 u32 cmdsn_depth = 0; 739 int ret; 740 741 cmdsn_depth = simple_strtoul(page, &endptr, 0); 742 if (cmdsn_depth > TA_DEFAULT_CMDSN_DEPTH_MAX) { 743 pr_err("Passed cmdsn_depth: %u exceeds" 744 " TA_DEFAULT_CMDSN_DEPTH_MAX: %u\n", cmdsn_depth, 745 TA_DEFAULT_CMDSN_DEPTH_MAX); 746 return -EINVAL; 747 } 748 acl_ci = &se_nacl->acl_group.cg_item; 749 if (!acl_ci) { 750 pr_err("Unable to locatel acl_ci\n"); 751 return -EINVAL; 752 } 753 tpg_ci = &acl_ci->ci_parent->ci_group->cg_item; 754 if (!tpg_ci) { 755 pr_err("Unable to locate tpg_ci\n"); 756 return -EINVAL; 757 } 758 wwn_ci = &tpg_ci->ci_group->cg_item; 759 if (!wwn_ci) { 760 pr_err("Unable to locate config_item wwn_ci\n"); 761 return -EINVAL; 762 } 763 764 if (iscsit_get_tpg(tpg) < 0) 765 return -EINVAL; 766 /* 767 * iscsit_tpg_set_initiator_node_queue_depth() assumes force=1 768 */ 769 ret = iscsit_tpg_set_initiator_node_queue_depth(tpg, 770 config_item_name(acl_ci), cmdsn_depth, 1); 771 772 pr_debug("LIO_Target_ConfigFS: %s/%s Set CmdSN Window: %u for" 773 "InitiatorName: %s\n", config_item_name(wwn_ci), 774 config_item_name(tpg_ci), cmdsn_depth, 775 config_item_name(acl_ci)); 776 777 iscsit_put_tpg(tpg); 778 return (!ret) ? count : (ssize_t)ret; 779 } 780 781 TF_NACL_BASE_ATTR(lio_target, cmdsn_depth, S_IRUGO | S_IWUSR); 782 783 static struct configfs_attribute *lio_target_initiator_attrs[] = { 784 &lio_target_nacl_info.attr, 785 &lio_target_nacl_cmdsn_depth.attr, 786 NULL, 787 }; 788 789 static struct se_node_acl *lio_tpg_alloc_fabric_acl( 790 struct se_portal_group *se_tpg) 791 { 792 struct iscsi_node_acl *acl; 793 794 acl = kzalloc(sizeof(struct iscsi_node_acl), GFP_KERNEL); 795 if (!acl) { 796 pr_err("Unable to allocate memory for struct iscsi_node_acl\n"); 797 return NULL; 798 } 799 800 return &acl->se_node_acl; 801 } 802 803 static struct se_node_acl *lio_target_make_nodeacl( 804 struct se_portal_group *se_tpg, 805 struct config_group *group, 806 const char *name) 807 { 808 struct config_group *stats_cg; 809 struct iscsi_node_acl *acl; 810 struct se_node_acl *se_nacl_new, *se_nacl; 811 struct iscsi_portal_group *tpg = container_of(se_tpg, 812 struct iscsi_portal_group, tpg_se_tpg); 813 u32 cmdsn_depth; 814 815 se_nacl_new = lio_tpg_alloc_fabric_acl(se_tpg); 816 if (!se_nacl_new) 817 return ERR_PTR(-ENOMEM); 818 819 acl = container_of(se_nacl_new, struct iscsi_node_acl, 820 se_node_acl); 821 822 cmdsn_depth = ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth; 823 /* 824 * se_nacl_new may be released by core_tpg_add_initiator_node_acl() 825 * when converting a NdoeACL from demo mode -> explict 826 */ 827 se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new, 828 name, cmdsn_depth); 829 if (IS_ERR(se_nacl)) 830 return se_nacl; 831 832 stats_cg = &acl->se_node_acl.acl_fabric_stat_group; 833 834 stats_cg->default_groups = kzalloc(sizeof(struct config_group) * 2, 835 GFP_KERNEL); 836 if (!stats_cg->default_groups) { 837 pr_err("Unable to allocate memory for" 838 " stats_cg->default_groups\n"); 839 core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1); 840 kfree(acl); 841 return ERR_PTR(-ENOMEM); 842 } 843 844 stats_cg->default_groups[0] = &NODE_STAT_GRPS(acl)->iscsi_sess_stats_group; 845 stats_cg->default_groups[1] = NULL; 846 config_group_init_type_name(&NODE_STAT_GRPS(acl)->iscsi_sess_stats_group, 847 "iscsi_sess_stats", &iscsi_stat_sess_cit); 848 849 return se_nacl; 850 } 851 852 static void lio_target_drop_nodeacl( 853 struct se_node_acl *se_nacl) 854 { 855 struct se_portal_group *se_tpg = se_nacl->se_tpg; 856 struct iscsi_node_acl *acl = container_of(se_nacl, 857 struct iscsi_node_acl, se_node_acl); 858 struct config_item *df_item; 859 struct config_group *stats_cg; 860 int i; 861 862 stats_cg = &acl->se_node_acl.acl_fabric_stat_group; 863 for (i = 0; stats_cg->default_groups[i]; i++) { 864 df_item = &stats_cg->default_groups[i]->cg_item; 865 stats_cg->default_groups[i] = NULL; 866 config_item_put(df_item); 867 } 868 kfree(stats_cg->default_groups); 869 870 core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1); 871 kfree(acl); 872 } 873 874 /* End items for lio_target_acl_cit */ 875 876 /* Start items for lio_target_tpg_attrib_cit */ 877 878 #define DEF_TPG_ATTRIB(name) \ 879 \ 880 static ssize_t iscsi_tpg_attrib_show_##name( \ 881 struct se_portal_group *se_tpg, \ 882 char *page) \ 883 { \ 884 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 885 struct iscsi_portal_group, tpg_se_tpg); \ 886 ssize_t rb; \ 887 \ 888 if (iscsit_get_tpg(tpg) < 0) \ 889 return -EINVAL; \ 890 \ 891 rb = sprintf(page, "%u\n", ISCSI_TPG_ATTRIB(tpg)->name); \ 892 iscsit_put_tpg(tpg); \ 893 return rb; \ 894 } \ 895 \ 896 static ssize_t iscsi_tpg_attrib_store_##name( \ 897 struct se_portal_group *se_tpg, \ 898 const char *page, \ 899 size_t count) \ 900 { \ 901 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 902 struct iscsi_portal_group, tpg_se_tpg); \ 903 char *endptr; \ 904 u32 val; \ 905 int ret; \ 906 \ 907 if (iscsit_get_tpg(tpg) < 0) \ 908 return -EINVAL; \ 909 \ 910 val = simple_strtoul(page, &endptr, 0); \ 911 ret = iscsit_ta_##name(tpg, val); \ 912 if (ret < 0) \ 913 goto out; \ 914 \ 915 iscsit_put_tpg(tpg); \ 916 return count; \ 917 out: \ 918 iscsit_put_tpg(tpg); \ 919 return ret; \ 920 } 921 922 #define TPG_ATTR(_name, _mode) TF_TPG_ATTRIB_ATTR(iscsi, _name, _mode); 923 924 /* 925 * Define iscsi_tpg_attrib_s_authentication 926 */ 927 DEF_TPG_ATTRIB(authentication); 928 TPG_ATTR(authentication, S_IRUGO | S_IWUSR); 929 /* 930 * Define iscsi_tpg_attrib_s_login_timeout 931 */ 932 DEF_TPG_ATTRIB(login_timeout); 933 TPG_ATTR(login_timeout, S_IRUGO | S_IWUSR); 934 /* 935 * Define iscsi_tpg_attrib_s_netif_timeout 936 */ 937 DEF_TPG_ATTRIB(netif_timeout); 938 TPG_ATTR(netif_timeout, S_IRUGO | S_IWUSR); 939 /* 940 * Define iscsi_tpg_attrib_s_generate_node_acls 941 */ 942 DEF_TPG_ATTRIB(generate_node_acls); 943 TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR); 944 /* 945 * Define iscsi_tpg_attrib_s_default_cmdsn_depth 946 */ 947 DEF_TPG_ATTRIB(default_cmdsn_depth); 948 TPG_ATTR(default_cmdsn_depth, S_IRUGO | S_IWUSR); 949 /* 950 Define iscsi_tpg_attrib_s_cache_dynamic_acls 951 */ 952 DEF_TPG_ATTRIB(cache_dynamic_acls); 953 TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR); 954 /* 955 * Define iscsi_tpg_attrib_s_demo_mode_write_protect 956 */ 957 DEF_TPG_ATTRIB(demo_mode_write_protect); 958 TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR); 959 /* 960 * Define iscsi_tpg_attrib_s_prod_mode_write_protect 961 */ 962 DEF_TPG_ATTRIB(prod_mode_write_protect); 963 TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR); 964 965 static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = { 966 &iscsi_tpg_attrib_authentication.attr, 967 &iscsi_tpg_attrib_login_timeout.attr, 968 &iscsi_tpg_attrib_netif_timeout.attr, 969 &iscsi_tpg_attrib_generate_node_acls.attr, 970 &iscsi_tpg_attrib_default_cmdsn_depth.attr, 971 &iscsi_tpg_attrib_cache_dynamic_acls.attr, 972 &iscsi_tpg_attrib_demo_mode_write_protect.attr, 973 &iscsi_tpg_attrib_prod_mode_write_protect.attr, 974 NULL, 975 }; 976 977 /* End items for lio_target_tpg_attrib_cit */ 978 979 /* Start items for lio_target_tpg_param_cit */ 980 981 #define DEF_TPG_PARAM(name) \ 982 static ssize_t iscsi_tpg_param_show_##name( \ 983 struct se_portal_group *se_tpg, \ 984 char *page) \ 985 { \ 986 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 987 struct iscsi_portal_group, tpg_se_tpg); \ 988 struct iscsi_param *param; \ 989 ssize_t rb; \ 990 \ 991 if (iscsit_get_tpg(tpg) < 0) \ 992 return -EINVAL; \ 993 \ 994 param = iscsi_find_param_from_key(__stringify(name), \ 995 tpg->param_list); \ 996 if (!param) { \ 997 iscsit_put_tpg(tpg); \ 998 return -EINVAL; \ 999 } \ 1000 rb = snprintf(page, PAGE_SIZE, "%s\n", param->value); \ 1001 \ 1002 iscsit_put_tpg(tpg); \ 1003 return rb; \ 1004 } \ 1005 static ssize_t iscsi_tpg_param_store_##name( \ 1006 struct se_portal_group *se_tpg, \ 1007 const char *page, \ 1008 size_t count) \ 1009 { \ 1010 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 1011 struct iscsi_portal_group, tpg_se_tpg); \ 1012 char *buf; \ 1013 int ret; \ 1014 \ 1015 buf = kzalloc(PAGE_SIZE, GFP_KERNEL); \ 1016 if (!buf) \ 1017 return -ENOMEM; \ 1018 snprintf(buf, PAGE_SIZE, "%s=%s", __stringify(name), page); \ 1019 buf[strlen(buf)-1] = '\0'; /* Kill newline */ \ 1020 \ 1021 if (iscsit_get_tpg(tpg) < 0) { \ 1022 kfree(buf); \ 1023 return -EINVAL; \ 1024 } \ 1025 \ 1026 ret = iscsi_change_param_value(buf, tpg->param_list, 1); \ 1027 if (ret < 0) \ 1028 goto out; \ 1029 \ 1030 kfree(buf); \ 1031 iscsit_put_tpg(tpg); \ 1032 return count; \ 1033 out: \ 1034 kfree(buf); \ 1035 iscsit_put_tpg(tpg); \ 1036 return -EINVAL; \ 1037 } 1038 1039 #define TPG_PARAM_ATTR(_name, _mode) TF_TPG_PARAM_ATTR(iscsi, _name, _mode); 1040 1041 DEF_TPG_PARAM(AuthMethod); 1042 TPG_PARAM_ATTR(AuthMethod, S_IRUGO | S_IWUSR); 1043 1044 DEF_TPG_PARAM(HeaderDigest); 1045 TPG_PARAM_ATTR(HeaderDigest, S_IRUGO | S_IWUSR); 1046 1047 DEF_TPG_PARAM(DataDigest); 1048 TPG_PARAM_ATTR(DataDigest, S_IRUGO | S_IWUSR); 1049 1050 DEF_TPG_PARAM(MaxConnections); 1051 TPG_PARAM_ATTR(MaxConnections, S_IRUGO | S_IWUSR); 1052 1053 DEF_TPG_PARAM(TargetAlias); 1054 TPG_PARAM_ATTR(TargetAlias, S_IRUGO | S_IWUSR); 1055 1056 DEF_TPG_PARAM(InitialR2T); 1057 TPG_PARAM_ATTR(InitialR2T, S_IRUGO | S_IWUSR); 1058 1059 DEF_TPG_PARAM(ImmediateData); 1060 TPG_PARAM_ATTR(ImmediateData, S_IRUGO | S_IWUSR); 1061 1062 DEF_TPG_PARAM(MaxRecvDataSegmentLength); 1063 TPG_PARAM_ATTR(MaxRecvDataSegmentLength, S_IRUGO | S_IWUSR); 1064 1065 DEF_TPG_PARAM(MaxBurstLength); 1066 TPG_PARAM_ATTR(MaxBurstLength, S_IRUGO | S_IWUSR); 1067 1068 DEF_TPG_PARAM(FirstBurstLength); 1069 TPG_PARAM_ATTR(FirstBurstLength, S_IRUGO | S_IWUSR); 1070 1071 DEF_TPG_PARAM(DefaultTime2Wait); 1072 TPG_PARAM_ATTR(DefaultTime2Wait, S_IRUGO | S_IWUSR); 1073 1074 DEF_TPG_PARAM(DefaultTime2Retain); 1075 TPG_PARAM_ATTR(DefaultTime2Retain, S_IRUGO | S_IWUSR); 1076 1077 DEF_TPG_PARAM(MaxOutstandingR2T); 1078 TPG_PARAM_ATTR(MaxOutstandingR2T, S_IRUGO | S_IWUSR); 1079 1080 DEF_TPG_PARAM(DataPDUInOrder); 1081 TPG_PARAM_ATTR(DataPDUInOrder, S_IRUGO | S_IWUSR); 1082 1083 DEF_TPG_PARAM(DataSequenceInOrder); 1084 TPG_PARAM_ATTR(DataSequenceInOrder, S_IRUGO | S_IWUSR); 1085 1086 DEF_TPG_PARAM(ErrorRecoveryLevel); 1087 TPG_PARAM_ATTR(ErrorRecoveryLevel, S_IRUGO | S_IWUSR); 1088 1089 DEF_TPG_PARAM(IFMarker); 1090 TPG_PARAM_ATTR(IFMarker, S_IRUGO | S_IWUSR); 1091 1092 DEF_TPG_PARAM(OFMarker); 1093 TPG_PARAM_ATTR(OFMarker, S_IRUGO | S_IWUSR); 1094 1095 DEF_TPG_PARAM(IFMarkInt); 1096 TPG_PARAM_ATTR(IFMarkInt, S_IRUGO | S_IWUSR); 1097 1098 DEF_TPG_PARAM(OFMarkInt); 1099 TPG_PARAM_ATTR(OFMarkInt, S_IRUGO | S_IWUSR); 1100 1101 static struct configfs_attribute *lio_target_tpg_param_attrs[] = { 1102 &iscsi_tpg_param_AuthMethod.attr, 1103 &iscsi_tpg_param_HeaderDigest.attr, 1104 &iscsi_tpg_param_DataDigest.attr, 1105 &iscsi_tpg_param_MaxConnections.attr, 1106 &iscsi_tpg_param_TargetAlias.attr, 1107 &iscsi_tpg_param_InitialR2T.attr, 1108 &iscsi_tpg_param_ImmediateData.attr, 1109 &iscsi_tpg_param_MaxRecvDataSegmentLength.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 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, (void *)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 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 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 = kzalloc(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 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 return cmd->init_task_tag; 1503 } 1504 1505 static int iscsi_get_cmd_state(struct se_cmd *se_cmd) 1506 { 1507 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1508 1509 return cmd->i_state; 1510 } 1511 1512 static int iscsi_is_state_remove(struct se_cmd *se_cmd) 1513 { 1514 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1515 1516 return (cmd->i_state == ISTATE_REMOVE); 1517 } 1518 1519 static int lio_sess_logged_in(struct se_session *se_sess) 1520 { 1521 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1522 int ret; 1523 /* 1524 * Called with spin_lock_bh(&tpg_lock); and 1525 * spin_lock(&se_tpg->session_lock); held. 1526 */ 1527 spin_lock(&sess->conn_lock); 1528 ret = (sess->session_state != TARG_SESS_STATE_LOGGED_IN); 1529 spin_unlock(&sess->conn_lock); 1530 1531 return ret; 1532 } 1533 1534 static u32 lio_sess_get_index(struct se_session *se_sess) 1535 { 1536 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1537 1538 return sess->session_index; 1539 } 1540 1541 static u32 lio_sess_get_initiator_sid( 1542 struct se_session *se_sess, 1543 unsigned char *buf, 1544 u32 size) 1545 { 1546 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1547 /* 1548 * iSCSI Initiator Session Identifier from RFC-3720. 1549 */ 1550 return snprintf(buf, size, "%02x%02x%02x%02x%02x%02x", 1551 sess->isid[0], sess->isid[1], sess->isid[2], 1552 sess->isid[3], sess->isid[4], sess->isid[5]); 1553 } 1554 1555 static int lio_queue_data_in(struct se_cmd *se_cmd) 1556 { 1557 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1558 1559 cmd->i_state = ISTATE_SEND_DATAIN; 1560 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); 1561 return 0; 1562 } 1563 1564 static int lio_write_pending(struct se_cmd *se_cmd) 1565 { 1566 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1567 1568 if (!cmd->immediate_data && !cmd->unsolicited_data) 1569 return iscsit_build_r2ts_for_cmd(cmd, cmd->conn, 1); 1570 1571 return 0; 1572 } 1573 1574 static int lio_write_pending_status(struct se_cmd *se_cmd) 1575 { 1576 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1577 int ret; 1578 1579 spin_lock_bh(&cmd->istate_lock); 1580 ret = !(cmd->cmd_flags & ICF_GOT_LAST_DATAOUT); 1581 spin_unlock_bh(&cmd->istate_lock); 1582 1583 return ret; 1584 } 1585 1586 static int lio_queue_status(struct se_cmd *se_cmd) 1587 { 1588 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1589 1590 cmd->i_state = ISTATE_SEND_STATUS; 1591 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); 1592 return 0; 1593 } 1594 1595 static u16 lio_set_fabric_sense_len(struct se_cmd *se_cmd, u32 sense_length) 1596 { 1597 unsigned char *buffer = se_cmd->sense_buffer; 1598 /* 1599 * From RFC-3720 10.4.7. Data Segment - Sense and Response Data Segment 1600 * 16-bit SenseLength. 1601 */ 1602 buffer[0] = ((sense_length >> 8) & 0xff); 1603 buffer[1] = (sense_length & 0xff); 1604 /* 1605 * Return two byte offset into allocated sense_buffer. 1606 */ 1607 return 2; 1608 } 1609 1610 static u16 lio_get_fabric_sense_len(void) 1611 { 1612 /* 1613 * Return two byte offset into allocated sense_buffer. 1614 */ 1615 return 2; 1616 } 1617 1618 static int lio_queue_tm_rsp(struct se_cmd *se_cmd) 1619 { 1620 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1621 1622 cmd->i_state = ISTATE_SEND_TASKMGTRSP; 1623 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); 1624 return 0; 1625 } 1626 1627 static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg) 1628 { 1629 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1630 1631 return &tpg->tpg_tiqn->tiqn[0]; 1632 } 1633 1634 static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg) 1635 { 1636 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1637 1638 return tpg->tpgt; 1639 } 1640 1641 static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg) 1642 { 1643 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1644 1645 return ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth; 1646 } 1647 1648 static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg) 1649 { 1650 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1651 1652 return ISCSI_TPG_ATTRIB(tpg)->generate_node_acls; 1653 } 1654 1655 static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg) 1656 { 1657 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1658 1659 return ISCSI_TPG_ATTRIB(tpg)->cache_dynamic_acls; 1660 } 1661 1662 static int lio_tpg_check_demo_mode_write_protect( 1663 struct se_portal_group *se_tpg) 1664 { 1665 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1666 1667 return ISCSI_TPG_ATTRIB(tpg)->demo_mode_write_protect; 1668 } 1669 1670 static int lio_tpg_check_prod_mode_write_protect( 1671 struct se_portal_group *se_tpg) 1672 { 1673 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1674 1675 return ISCSI_TPG_ATTRIB(tpg)->prod_mode_write_protect; 1676 } 1677 1678 static void lio_tpg_release_fabric_acl( 1679 struct se_portal_group *se_tpg, 1680 struct se_node_acl *se_acl) 1681 { 1682 struct iscsi_node_acl *acl = container_of(se_acl, 1683 struct iscsi_node_acl, se_node_acl); 1684 kfree(acl); 1685 } 1686 1687 /* 1688 * Called with spin_lock_bh(struct se_portal_group->session_lock) held.. 1689 * 1690 * Also, this function calls iscsit_inc_session_usage_count() on the 1691 * struct iscsi_session in question. 1692 */ 1693 static int lio_tpg_shutdown_session(struct se_session *se_sess) 1694 { 1695 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1696 1697 spin_lock(&sess->conn_lock); 1698 if (atomic_read(&sess->session_fall_back_to_erl0) || 1699 atomic_read(&sess->session_logout) || 1700 (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) { 1701 spin_unlock(&sess->conn_lock); 1702 return 0; 1703 } 1704 atomic_set(&sess->session_reinstatement, 1); 1705 spin_unlock(&sess->conn_lock); 1706 1707 iscsit_inc_session_usage_count(sess); 1708 iscsit_stop_time2retain_timer(sess); 1709 1710 return 1; 1711 } 1712 1713 /* 1714 * Calls iscsit_dec_session_usage_count() as inverse of 1715 * lio_tpg_shutdown_session() 1716 */ 1717 static void lio_tpg_close_session(struct se_session *se_sess) 1718 { 1719 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1720 /* 1721 * If the iSCSI Session for the iSCSI Initiator Node exists, 1722 * forcefully shutdown the iSCSI NEXUS. 1723 */ 1724 iscsit_stop_session(sess, 1, 1); 1725 iscsit_dec_session_usage_count(sess); 1726 iscsit_close_session(sess); 1727 } 1728 1729 static void lio_tpg_stop_session( 1730 struct se_session *se_sess, 1731 int sess_sleep, 1732 int conn_sleep) 1733 { 1734 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1735 1736 iscsit_stop_session(sess, sess_sleep, conn_sleep); 1737 } 1738 1739 static void lio_tpg_fall_back_to_erl0(struct se_session *se_sess) 1740 { 1741 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1742 1743 iscsit_fall_back_to_erl0(sess); 1744 } 1745 1746 static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg) 1747 { 1748 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1749 1750 return tpg->tpg_tiqn->tiqn_index; 1751 } 1752 1753 static void lio_set_default_node_attributes(struct se_node_acl *se_acl) 1754 { 1755 struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl, 1756 se_node_acl); 1757 1758 ISCSI_NODE_ATTRIB(acl)->nacl = acl; 1759 iscsit_set_default_node_attribues(acl); 1760 } 1761 1762 static void lio_release_cmd(struct se_cmd *se_cmd) 1763 { 1764 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1765 1766 iscsit_release_cmd(cmd); 1767 } 1768 1769 /* End functions for target_core_fabric_ops */ 1770 1771 int iscsi_target_register_configfs(void) 1772 { 1773 struct target_fabric_configfs *fabric; 1774 int ret; 1775 1776 lio_target_fabric_configfs = NULL; 1777 fabric = target_fabric_configfs_init(THIS_MODULE, "iscsi"); 1778 if (IS_ERR(fabric)) { 1779 pr_err("target_fabric_configfs_init() for" 1780 " LIO-Target failed!\n"); 1781 return PTR_ERR(fabric); 1782 } 1783 /* 1784 * Setup the fabric API of function pointers used by target_core_mod.. 1785 */ 1786 fabric->tf_ops.get_fabric_name = &iscsi_get_fabric_name; 1787 fabric->tf_ops.get_fabric_proto_ident = &iscsi_get_fabric_proto_ident; 1788 fabric->tf_ops.tpg_get_wwn = &lio_tpg_get_endpoint_wwn; 1789 fabric->tf_ops.tpg_get_tag = &lio_tpg_get_tag; 1790 fabric->tf_ops.tpg_get_default_depth = &lio_tpg_get_default_depth; 1791 fabric->tf_ops.tpg_get_pr_transport_id = &iscsi_get_pr_transport_id; 1792 fabric->tf_ops.tpg_get_pr_transport_id_len = 1793 &iscsi_get_pr_transport_id_len; 1794 fabric->tf_ops.tpg_parse_pr_out_transport_id = 1795 &iscsi_parse_pr_out_transport_id; 1796 fabric->tf_ops.tpg_check_demo_mode = &lio_tpg_check_demo_mode; 1797 fabric->tf_ops.tpg_check_demo_mode_cache = 1798 &lio_tpg_check_demo_mode_cache; 1799 fabric->tf_ops.tpg_check_demo_mode_write_protect = 1800 &lio_tpg_check_demo_mode_write_protect; 1801 fabric->tf_ops.tpg_check_prod_mode_write_protect = 1802 &lio_tpg_check_prod_mode_write_protect; 1803 fabric->tf_ops.tpg_alloc_fabric_acl = &lio_tpg_alloc_fabric_acl; 1804 fabric->tf_ops.tpg_release_fabric_acl = &lio_tpg_release_fabric_acl; 1805 fabric->tf_ops.tpg_get_inst_index = &lio_tpg_get_inst_index; 1806 fabric->tf_ops.release_cmd = &lio_release_cmd; 1807 fabric->tf_ops.shutdown_session = &lio_tpg_shutdown_session; 1808 fabric->tf_ops.close_session = &lio_tpg_close_session; 1809 fabric->tf_ops.stop_session = &lio_tpg_stop_session; 1810 fabric->tf_ops.fall_back_to_erl0 = &lio_tpg_fall_back_to_erl0; 1811 fabric->tf_ops.sess_logged_in = &lio_sess_logged_in; 1812 fabric->tf_ops.sess_get_index = &lio_sess_get_index; 1813 fabric->tf_ops.sess_get_initiator_sid = &lio_sess_get_initiator_sid; 1814 fabric->tf_ops.write_pending = &lio_write_pending; 1815 fabric->tf_ops.write_pending_status = &lio_write_pending_status; 1816 fabric->tf_ops.set_default_node_attributes = 1817 &lio_set_default_node_attributes; 1818 fabric->tf_ops.get_task_tag = &iscsi_get_task_tag; 1819 fabric->tf_ops.get_cmd_state = &iscsi_get_cmd_state; 1820 fabric->tf_ops.queue_data_in = &lio_queue_data_in; 1821 fabric->tf_ops.queue_status = &lio_queue_status; 1822 fabric->tf_ops.queue_tm_rsp = &lio_queue_tm_rsp; 1823 fabric->tf_ops.set_fabric_sense_len = &lio_set_fabric_sense_len; 1824 fabric->tf_ops.get_fabric_sense_len = &lio_get_fabric_sense_len; 1825 fabric->tf_ops.is_state_remove = &iscsi_is_state_remove; 1826 /* 1827 * Setup function pointers for generic logic in target_core_fabric_configfs.c 1828 */ 1829 fabric->tf_ops.fabric_make_wwn = &lio_target_call_coreaddtiqn; 1830 fabric->tf_ops.fabric_drop_wwn = &lio_target_call_coredeltiqn; 1831 fabric->tf_ops.fabric_make_tpg = &lio_target_tiqn_addtpg; 1832 fabric->tf_ops.fabric_drop_tpg = &lio_target_tiqn_deltpg; 1833 fabric->tf_ops.fabric_post_link = NULL; 1834 fabric->tf_ops.fabric_pre_unlink = NULL; 1835 fabric->tf_ops.fabric_make_np = &lio_target_call_addnptotpg; 1836 fabric->tf_ops.fabric_drop_np = &lio_target_call_delnpfromtpg; 1837 fabric->tf_ops.fabric_make_nodeacl = &lio_target_make_nodeacl; 1838 fabric->tf_ops.fabric_drop_nodeacl = &lio_target_drop_nodeacl; 1839 /* 1840 * Setup default attribute lists for various fabric->tf_cit_tmpl 1841 * sturct config_item_type's 1842 */ 1843 TF_CIT_TMPL(fabric)->tfc_discovery_cit.ct_attrs = lio_target_discovery_auth_attrs; 1844 TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = lio_target_wwn_attrs; 1845 TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = lio_target_tpg_attrs; 1846 TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = lio_target_tpg_attrib_attrs; 1847 TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = lio_target_tpg_param_attrs; 1848 TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = lio_target_portal_attrs; 1849 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = lio_target_initiator_attrs; 1850 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = lio_target_nacl_attrib_attrs; 1851 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = lio_target_nacl_auth_attrs; 1852 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = lio_target_nacl_param_attrs; 1853 1854 ret = target_fabric_configfs_register(fabric); 1855 if (ret < 0) { 1856 pr_err("target_fabric_configfs_register() for" 1857 " LIO-Target failed!\n"); 1858 target_fabric_configfs_free(fabric); 1859 return ret; 1860 } 1861 1862 lio_target_fabric_configfs = fabric; 1863 pr_debug("LIO_TARGET[0] - Set fabric ->" 1864 " lio_target_fabric_configfs\n"); 1865 return 0; 1866 } 1867 1868 1869 void iscsi_target_deregister_configfs(void) 1870 { 1871 if (!lio_target_fabric_configfs) 1872 return; 1873 /* 1874 * Shutdown discovery sessions and disable discovery TPG 1875 */ 1876 if (iscsit_global->discovery_tpg) 1877 iscsit_tpg_disable_portal_group(iscsit_global->discovery_tpg, 1); 1878 1879 target_fabric_configfs_deregister(lio_target_fabric_configfs); 1880 lio_target_fabric_configfs = NULL; 1881 pr_debug("LIO_TARGET[0] - Cleared" 1882 " lio_target_fabric_configfs\n"); 1883 } 1884