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 #include <target/iscsi/iscsi_transport.h> 31 32 #include "iscsi_target_core.h" 33 #include "iscsi_target_parameters.h" 34 #include "iscsi_target_device.h" 35 #include "iscsi_target_erl0.h" 36 #include "iscsi_target_nodeattrib.h" 37 #include "iscsi_target_tpg.h" 38 #include "iscsi_target_util.h" 39 #include "iscsi_target.h" 40 #include "iscsi_target_stat.h" 41 #include "iscsi_target_configfs.h" 42 43 struct target_fabric_configfs *lio_target_fabric_configfs; 44 45 struct lio_target_configfs_attribute { 46 struct configfs_attribute attr; 47 ssize_t (*show)(void *, char *); 48 ssize_t (*store)(void *, const char *, size_t); 49 }; 50 51 /* Start items for lio_target_portal_cit */ 52 53 static ssize_t lio_target_np_show_sctp( 54 struct se_tpg_np *se_tpg_np, 55 char *page) 56 { 57 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, 58 struct iscsi_tpg_np, se_tpg_np); 59 struct iscsi_tpg_np *tpg_np_sctp; 60 ssize_t rb; 61 62 tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP); 63 if (tpg_np_sctp) 64 rb = sprintf(page, "1\n"); 65 else 66 rb = sprintf(page, "0\n"); 67 68 return rb; 69 } 70 71 static ssize_t lio_target_np_store_sctp( 72 struct se_tpg_np *se_tpg_np, 73 const char *page, 74 size_t count) 75 { 76 struct iscsi_np *np; 77 struct iscsi_portal_group *tpg; 78 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, 79 struct iscsi_tpg_np, se_tpg_np); 80 struct iscsi_tpg_np *tpg_np_sctp = NULL; 81 char *endptr; 82 u32 op; 83 int ret; 84 85 op = simple_strtoul(page, &endptr, 0); 86 if ((op != 1) && (op != 0)) { 87 pr_err("Illegal value for tpg_enable: %u\n", op); 88 return -EINVAL; 89 } 90 np = tpg_np->tpg_np; 91 if (!np) { 92 pr_err("Unable to locate struct iscsi_np from" 93 " struct iscsi_tpg_np\n"); 94 return -EINVAL; 95 } 96 97 tpg = tpg_np->tpg; 98 if (iscsit_get_tpg(tpg) < 0) 99 return -EINVAL; 100 101 if (op) { 102 /* 103 * Use existing np->np_sockaddr for SCTP network portal reference 104 */ 105 tpg_np_sctp = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr, 106 np->np_ip, tpg_np, ISCSI_SCTP_TCP); 107 if (!tpg_np_sctp || IS_ERR(tpg_np_sctp)) 108 goto out; 109 } else { 110 tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP); 111 if (!tpg_np_sctp) 112 goto out; 113 114 ret = iscsit_tpg_del_network_portal(tpg, tpg_np_sctp); 115 if (ret < 0) 116 goto out; 117 } 118 119 iscsit_put_tpg(tpg); 120 return count; 121 out: 122 iscsit_put_tpg(tpg); 123 return -EINVAL; 124 } 125 126 TF_NP_BASE_ATTR(lio_target, sctp, S_IRUGO | S_IWUSR); 127 128 static ssize_t lio_target_np_show_iser( 129 struct se_tpg_np *se_tpg_np, 130 char *page) 131 { 132 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, 133 struct iscsi_tpg_np, se_tpg_np); 134 struct iscsi_tpg_np *tpg_np_iser; 135 ssize_t rb; 136 137 tpg_np_iser = iscsit_tpg_locate_child_np(tpg_np, ISCSI_INFINIBAND); 138 if (tpg_np_iser) 139 rb = sprintf(page, "1\n"); 140 else 141 rb = sprintf(page, "0\n"); 142 143 return rb; 144 } 145 146 static ssize_t lio_target_np_store_iser( 147 struct se_tpg_np *se_tpg_np, 148 const char *page, 149 size_t count) 150 { 151 struct iscsi_np *np; 152 struct iscsi_portal_group *tpg; 153 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, 154 struct iscsi_tpg_np, se_tpg_np); 155 struct iscsi_tpg_np *tpg_np_iser = NULL; 156 char *endptr; 157 u32 op; 158 int rc = 0; 159 160 op = simple_strtoul(page, &endptr, 0); 161 if ((op != 1) && (op != 0)) { 162 pr_err("Illegal value for tpg_enable: %u\n", op); 163 return -EINVAL; 164 } 165 np = tpg_np->tpg_np; 166 if (!np) { 167 pr_err("Unable to locate struct iscsi_np from" 168 " struct iscsi_tpg_np\n"); 169 return -EINVAL; 170 } 171 172 tpg = tpg_np->tpg; 173 if (iscsit_get_tpg(tpg) < 0) 174 return -EINVAL; 175 176 if (op) { 177 rc = request_module("ib_isert"); 178 if (rc != 0) { 179 pr_warn("Unable to request_module for ib_isert\n"); 180 rc = 0; 181 } 182 183 tpg_np_iser = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr, 184 np->np_ip, tpg_np, ISCSI_INFINIBAND); 185 if (IS_ERR(tpg_np_iser)) { 186 rc = PTR_ERR(tpg_np_iser); 187 goto out; 188 } 189 } else { 190 tpg_np_iser = iscsit_tpg_locate_child_np(tpg_np, ISCSI_INFINIBAND); 191 if (tpg_np_iser) { 192 rc = iscsit_tpg_del_network_portal(tpg, tpg_np_iser); 193 if (rc < 0) 194 goto out; 195 } 196 } 197 198 iscsit_put_tpg(tpg); 199 return count; 200 out: 201 iscsit_put_tpg(tpg); 202 return rc; 203 } 204 205 TF_NP_BASE_ATTR(lio_target, iser, S_IRUGO | S_IWUSR); 206 207 static struct configfs_attribute *lio_target_portal_attrs[] = { 208 &lio_target_np_sctp.attr, 209 &lio_target_np_iser.attr, 210 NULL, 211 }; 212 213 /* Stop items for lio_target_portal_cit */ 214 215 /* Start items for lio_target_np_cit */ 216 217 #define MAX_PORTAL_LEN 256 218 219 static struct se_tpg_np *lio_target_call_addnptotpg( 220 struct se_portal_group *se_tpg, 221 struct config_group *group, 222 const char *name) 223 { 224 struct iscsi_portal_group *tpg; 225 struct iscsi_tpg_np *tpg_np; 226 char *str, *str2, *ip_str, *port_str; 227 struct __kernel_sockaddr_storage sockaddr; 228 struct sockaddr_in *sock_in; 229 struct sockaddr_in6 *sock_in6; 230 unsigned long port; 231 int ret; 232 char buf[MAX_PORTAL_LEN + 1]; 233 234 if (strlen(name) > MAX_PORTAL_LEN) { 235 pr_err("strlen(name): %d exceeds MAX_PORTAL_LEN: %d\n", 236 (int)strlen(name), MAX_PORTAL_LEN); 237 return ERR_PTR(-EOVERFLOW); 238 } 239 memset(buf, 0, MAX_PORTAL_LEN + 1); 240 snprintf(buf, MAX_PORTAL_LEN + 1, "%s", name); 241 242 memset(&sockaddr, 0, sizeof(struct __kernel_sockaddr_storage)); 243 244 str = strstr(buf, "["); 245 if (str) { 246 const char *end; 247 248 str2 = strstr(str, "]"); 249 if (!str2) { 250 pr_err("Unable to locate trailing \"]\"" 251 " in IPv6 iSCSI network portal address\n"); 252 return ERR_PTR(-EINVAL); 253 } 254 str++; /* Skip over leading "[" */ 255 *str2 = '\0'; /* Terminate the IPv6 address */ 256 str2++; /* Skip over the "]" */ 257 port_str = strstr(str2, ":"); 258 if (!port_str) { 259 pr_err("Unable to locate \":port\"" 260 " in IPv6 iSCSI network portal address\n"); 261 return ERR_PTR(-EINVAL); 262 } 263 *port_str = '\0'; /* Terminate string for IP */ 264 port_str++; /* Skip over ":" */ 265 266 ret = strict_strtoul(port_str, 0, &port); 267 if (ret < 0) { 268 pr_err("strict_strtoul() failed for port_str: %d\n", ret); 269 return ERR_PTR(ret); 270 } 271 sock_in6 = (struct sockaddr_in6 *)&sockaddr; 272 sock_in6->sin6_family = AF_INET6; 273 sock_in6->sin6_port = htons((unsigned short)port); 274 ret = in6_pton(str, IPV6_ADDRESS_SPACE, 275 (void *)&sock_in6->sin6_addr.in6_u, -1, &end); 276 if (ret <= 0) { 277 pr_err("in6_pton returned: %d\n", ret); 278 return ERR_PTR(-EINVAL); 279 } 280 } else { 281 str = ip_str = &buf[0]; 282 port_str = strstr(ip_str, ":"); 283 if (!port_str) { 284 pr_err("Unable to locate \":port\"" 285 " in IPv4 iSCSI network portal address\n"); 286 return ERR_PTR(-EINVAL); 287 } 288 *port_str = '\0'; /* Terminate string for IP */ 289 port_str++; /* Skip over ":" */ 290 291 ret = strict_strtoul(port_str, 0, &port); 292 if (ret < 0) { 293 pr_err("strict_strtoul() failed for port_str: %d\n", ret); 294 return ERR_PTR(ret); 295 } 296 sock_in = (struct sockaddr_in *)&sockaddr; 297 sock_in->sin_family = AF_INET; 298 sock_in->sin_port = htons((unsigned short)port); 299 sock_in->sin_addr.s_addr = in_aton(ip_str); 300 } 301 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); 302 ret = iscsit_get_tpg(tpg); 303 if (ret < 0) 304 return ERR_PTR(-EINVAL); 305 306 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s TPGT: %hu" 307 " PORTAL: %s\n", 308 config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item), 309 tpg->tpgt, name); 310 /* 311 * Assume ISCSI_TCP by default. Other network portals for other 312 * iSCSI fabrics: 313 * 314 * Traditional iSCSI over SCTP (initial support) 315 * iSER/TCP (TODO, hardware available) 316 * iSER/SCTP (TODO, software emulation with osc-iwarp) 317 * iSER/IB (TODO, hardware available) 318 * 319 * can be enabled with attributes under 320 * sys/kernel/config/iscsi/$IQN/$TPG/np/$IP:$PORT/ 321 * 322 */ 323 tpg_np = iscsit_tpg_add_network_portal(tpg, &sockaddr, str, NULL, 324 ISCSI_TCP); 325 if (IS_ERR(tpg_np)) { 326 iscsit_put_tpg(tpg); 327 return ERR_CAST(tpg_np); 328 } 329 pr_debug("LIO_Target_ConfigFS: addnptotpg done!\n"); 330 331 iscsit_put_tpg(tpg); 332 return &tpg_np->se_tpg_np; 333 } 334 335 static void lio_target_call_delnpfromtpg( 336 struct se_tpg_np *se_tpg_np) 337 { 338 struct iscsi_portal_group *tpg; 339 struct iscsi_tpg_np *tpg_np; 340 struct se_portal_group *se_tpg; 341 int ret; 342 343 tpg_np = container_of(se_tpg_np, struct iscsi_tpg_np, se_tpg_np); 344 tpg = tpg_np->tpg; 345 ret = iscsit_get_tpg(tpg); 346 if (ret < 0) 347 return; 348 349 se_tpg = &tpg->tpg_se_tpg; 350 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s TPGT: %hu" 351 " PORTAL: %s:%hu\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item), 352 tpg->tpgt, tpg_np->tpg_np->np_ip, tpg_np->tpg_np->np_port); 353 354 ret = iscsit_tpg_del_network_portal(tpg, tpg_np); 355 if (ret < 0) 356 goto out; 357 358 pr_debug("LIO_Target_ConfigFS: delnpfromtpg done!\n"); 359 out: 360 iscsit_put_tpg(tpg); 361 } 362 363 /* End items for lio_target_np_cit */ 364 365 /* Start items for lio_target_nacl_attrib_cit */ 366 367 #define DEF_NACL_ATTRIB(name) \ 368 static ssize_t iscsi_nacl_attrib_show_##name( \ 369 struct se_node_acl *se_nacl, \ 370 char *page) \ 371 { \ 372 struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \ 373 se_node_acl); \ 374 \ 375 return sprintf(page, "%u\n", ISCSI_NODE_ATTRIB(nacl)->name); \ 376 } \ 377 \ 378 static ssize_t iscsi_nacl_attrib_store_##name( \ 379 struct se_node_acl *se_nacl, \ 380 const char *page, \ 381 size_t count) \ 382 { \ 383 struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \ 384 se_node_acl); \ 385 char *endptr; \ 386 u32 val; \ 387 int ret; \ 388 \ 389 val = simple_strtoul(page, &endptr, 0); \ 390 ret = iscsit_na_##name(nacl, val); \ 391 if (ret < 0) \ 392 return ret; \ 393 \ 394 return count; \ 395 } 396 397 #define NACL_ATTR(_name, _mode) TF_NACL_ATTRIB_ATTR(iscsi, _name, _mode); 398 /* 399 * Define iscsi_node_attrib_s_dataout_timeout 400 */ 401 DEF_NACL_ATTRIB(dataout_timeout); 402 NACL_ATTR(dataout_timeout, S_IRUGO | S_IWUSR); 403 /* 404 * Define iscsi_node_attrib_s_dataout_timeout_retries 405 */ 406 DEF_NACL_ATTRIB(dataout_timeout_retries); 407 NACL_ATTR(dataout_timeout_retries, S_IRUGO | S_IWUSR); 408 /* 409 * Define iscsi_node_attrib_s_default_erl 410 */ 411 DEF_NACL_ATTRIB(default_erl); 412 NACL_ATTR(default_erl, S_IRUGO | S_IWUSR); 413 /* 414 * Define iscsi_node_attrib_s_nopin_timeout 415 */ 416 DEF_NACL_ATTRIB(nopin_timeout); 417 NACL_ATTR(nopin_timeout, S_IRUGO | S_IWUSR); 418 /* 419 * Define iscsi_node_attrib_s_nopin_response_timeout 420 */ 421 DEF_NACL_ATTRIB(nopin_response_timeout); 422 NACL_ATTR(nopin_response_timeout, S_IRUGO | S_IWUSR); 423 /* 424 * Define iscsi_node_attrib_s_random_datain_pdu_offsets 425 */ 426 DEF_NACL_ATTRIB(random_datain_pdu_offsets); 427 NACL_ATTR(random_datain_pdu_offsets, S_IRUGO | S_IWUSR); 428 /* 429 * Define iscsi_node_attrib_s_random_datain_seq_offsets 430 */ 431 DEF_NACL_ATTRIB(random_datain_seq_offsets); 432 NACL_ATTR(random_datain_seq_offsets, S_IRUGO | S_IWUSR); 433 /* 434 * Define iscsi_node_attrib_s_random_r2t_offsets 435 */ 436 DEF_NACL_ATTRIB(random_r2t_offsets); 437 NACL_ATTR(random_r2t_offsets, S_IRUGO | S_IWUSR); 438 439 static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = { 440 &iscsi_nacl_attrib_dataout_timeout.attr, 441 &iscsi_nacl_attrib_dataout_timeout_retries.attr, 442 &iscsi_nacl_attrib_default_erl.attr, 443 &iscsi_nacl_attrib_nopin_timeout.attr, 444 &iscsi_nacl_attrib_nopin_response_timeout.attr, 445 &iscsi_nacl_attrib_random_datain_pdu_offsets.attr, 446 &iscsi_nacl_attrib_random_datain_seq_offsets.attr, 447 &iscsi_nacl_attrib_random_r2t_offsets.attr, 448 NULL, 449 }; 450 451 /* End items for lio_target_nacl_attrib_cit */ 452 453 /* Start items for lio_target_nacl_auth_cit */ 454 455 #define __DEF_NACL_AUTH_STR(prefix, name, flags) \ 456 static ssize_t __iscsi_##prefix##_show_##name( \ 457 struct iscsi_node_acl *nacl, \ 458 char *page) \ 459 { \ 460 struct iscsi_node_auth *auth = &nacl->node_auth; \ 461 \ 462 if (!capable(CAP_SYS_ADMIN)) \ 463 return -EPERM; \ 464 return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \ 465 } \ 466 \ 467 static ssize_t __iscsi_##prefix##_store_##name( \ 468 struct iscsi_node_acl *nacl, \ 469 const char *page, \ 470 size_t count) \ 471 { \ 472 struct iscsi_node_auth *auth = &nacl->node_auth; \ 473 \ 474 if (!capable(CAP_SYS_ADMIN)) \ 475 return -EPERM; \ 476 \ 477 snprintf(auth->name, PAGE_SIZE, "%s", page); \ 478 if (!strncmp("NULL", auth->name, 4)) \ 479 auth->naf_flags &= ~flags; \ 480 else \ 481 auth->naf_flags |= flags; \ 482 \ 483 if ((auth->naf_flags & NAF_USERID_IN_SET) && \ 484 (auth->naf_flags & NAF_PASSWORD_IN_SET)) \ 485 auth->authenticate_target = 1; \ 486 else \ 487 auth->authenticate_target = 0; \ 488 \ 489 return count; \ 490 } 491 492 #define __DEF_NACL_AUTH_INT(prefix, name) \ 493 static ssize_t __iscsi_##prefix##_show_##name( \ 494 struct iscsi_node_acl *nacl, \ 495 char *page) \ 496 { \ 497 struct iscsi_node_auth *auth = &nacl->node_auth; \ 498 \ 499 if (!capable(CAP_SYS_ADMIN)) \ 500 return -EPERM; \ 501 \ 502 return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \ 503 } 504 505 #define DEF_NACL_AUTH_STR(name, flags) \ 506 __DEF_NACL_AUTH_STR(nacl_auth, name, flags) \ 507 static ssize_t iscsi_nacl_auth_show_##name( \ 508 struct se_node_acl *nacl, \ 509 char *page) \ 510 { \ 511 return __iscsi_nacl_auth_show_##name(container_of(nacl, \ 512 struct iscsi_node_acl, se_node_acl), page); \ 513 } \ 514 static ssize_t iscsi_nacl_auth_store_##name( \ 515 struct se_node_acl *nacl, \ 516 const char *page, \ 517 size_t count) \ 518 { \ 519 return __iscsi_nacl_auth_store_##name(container_of(nacl, \ 520 struct iscsi_node_acl, se_node_acl), page, count); \ 521 } 522 523 #define DEF_NACL_AUTH_INT(name) \ 524 __DEF_NACL_AUTH_INT(nacl_auth, name) \ 525 static ssize_t iscsi_nacl_auth_show_##name( \ 526 struct se_node_acl *nacl, \ 527 char *page) \ 528 { \ 529 return __iscsi_nacl_auth_show_##name(container_of(nacl, \ 530 struct iscsi_node_acl, se_node_acl), page); \ 531 } 532 533 #define AUTH_ATTR(_name, _mode) TF_NACL_AUTH_ATTR(iscsi, _name, _mode); 534 #define AUTH_ATTR_RO(_name) TF_NACL_AUTH_ATTR_RO(iscsi, _name); 535 536 /* 537 * One-way authentication userid 538 */ 539 DEF_NACL_AUTH_STR(userid, NAF_USERID_SET); 540 AUTH_ATTR(userid, S_IRUGO | S_IWUSR); 541 /* 542 * One-way authentication password 543 */ 544 DEF_NACL_AUTH_STR(password, NAF_PASSWORD_SET); 545 AUTH_ATTR(password, S_IRUGO | S_IWUSR); 546 /* 547 * Enforce mutual authentication 548 */ 549 DEF_NACL_AUTH_INT(authenticate_target); 550 AUTH_ATTR_RO(authenticate_target); 551 /* 552 * Mutual authentication userid 553 */ 554 DEF_NACL_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); 555 AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR); 556 /* 557 * Mutual authentication password 558 */ 559 DEF_NACL_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); 560 AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR); 561 562 static struct configfs_attribute *lio_target_nacl_auth_attrs[] = { 563 &iscsi_nacl_auth_userid.attr, 564 &iscsi_nacl_auth_password.attr, 565 &iscsi_nacl_auth_authenticate_target.attr, 566 &iscsi_nacl_auth_userid_mutual.attr, 567 &iscsi_nacl_auth_password_mutual.attr, 568 NULL, 569 }; 570 571 /* End items for lio_target_nacl_auth_cit */ 572 573 /* Start items for lio_target_nacl_param_cit */ 574 575 #define DEF_NACL_PARAM(name) \ 576 static ssize_t iscsi_nacl_param_show_##name( \ 577 struct se_node_acl *se_nacl, \ 578 char *page) \ 579 { \ 580 struct iscsi_session *sess; \ 581 struct se_session *se_sess; \ 582 ssize_t rb; \ 583 \ 584 spin_lock_bh(&se_nacl->nacl_sess_lock); \ 585 se_sess = se_nacl->nacl_sess; \ 586 if (!se_sess) { \ 587 rb = snprintf(page, PAGE_SIZE, \ 588 "No Active iSCSI Session\n"); \ 589 } else { \ 590 sess = se_sess->fabric_sess_ptr; \ 591 rb = snprintf(page, PAGE_SIZE, "%u\n", \ 592 (u32)sess->sess_ops->name); \ 593 } \ 594 spin_unlock_bh(&se_nacl->nacl_sess_lock); \ 595 \ 596 return rb; \ 597 } 598 599 #define NACL_PARAM_ATTR(_name) TF_NACL_PARAM_ATTR_RO(iscsi, _name); 600 601 DEF_NACL_PARAM(MaxConnections); 602 NACL_PARAM_ATTR(MaxConnections); 603 604 DEF_NACL_PARAM(InitialR2T); 605 NACL_PARAM_ATTR(InitialR2T); 606 607 DEF_NACL_PARAM(ImmediateData); 608 NACL_PARAM_ATTR(ImmediateData); 609 610 DEF_NACL_PARAM(MaxBurstLength); 611 NACL_PARAM_ATTR(MaxBurstLength); 612 613 DEF_NACL_PARAM(FirstBurstLength); 614 NACL_PARAM_ATTR(FirstBurstLength); 615 616 DEF_NACL_PARAM(DefaultTime2Wait); 617 NACL_PARAM_ATTR(DefaultTime2Wait); 618 619 DEF_NACL_PARAM(DefaultTime2Retain); 620 NACL_PARAM_ATTR(DefaultTime2Retain); 621 622 DEF_NACL_PARAM(MaxOutstandingR2T); 623 NACL_PARAM_ATTR(MaxOutstandingR2T); 624 625 DEF_NACL_PARAM(DataPDUInOrder); 626 NACL_PARAM_ATTR(DataPDUInOrder); 627 628 DEF_NACL_PARAM(DataSequenceInOrder); 629 NACL_PARAM_ATTR(DataSequenceInOrder); 630 631 DEF_NACL_PARAM(ErrorRecoveryLevel); 632 NACL_PARAM_ATTR(ErrorRecoveryLevel); 633 634 static struct configfs_attribute *lio_target_nacl_param_attrs[] = { 635 &iscsi_nacl_param_MaxConnections.attr, 636 &iscsi_nacl_param_InitialR2T.attr, 637 &iscsi_nacl_param_ImmediateData.attr, 638 &iscsi_nacl_param_MaxBurstLength.attr, 639 &iscsi_nacl_param_FirstBurstLength.attr, 640 &iscsi_nacl_param_DefaultTime2Wait.attr, 641 &iscsi_nacl_param_DefaultTime2Retain.attr, 642 &iscsi_nacl_param_MaxOutstandingR2T.attr, 643 &iscsi_nacl_param_DataPDUInOrder.attr, 644 &iscsi_nacl_param_DataSequenceInOrder.attr, 645 &iscsi_nacl_param_ErrorRecoveryLevel.attr, 646 NULL, 647 }; 648 649 /* End items for lio_target_nacl_param_cit */ 650 651 /* Start items for lio_target_acl_cit */ 652 653 static ssize_t lio_target_nacl_show_info( 654 struct se_node_acl *se_nacl, 655 char *page) 656 { 657 struct iscsi_session *sess; 658 struct iscsi_conn *conn; 659 struct se_session *se_sess; 660 ssize_t rb = 0; 661 662 spin_lock_bh(&se_nacl->nacl_sess_lock); 663 se_sess = se_nacl->nacl_sess; 664 if (!se_sess) { 665 rb += sprintf(page+rb, "No active iSCSI Session for Initiator" 666 " Endpoint: %s\n", se_nacl->initiatorname); 667 } else { 668 sess = se_sess->fabric_sess_ptr; 669 670 if (sess->sess_ops->InitiatorName) 671 rb += sprintf(page+rb, "InitiatorName: %s\n", 672 sess->sess_ops->InitiatorName); 673 if (sess->sess_ops->InitiatorAlias) 674 rb += sprintf(page+rb, "InitiatorAlias: %s\n", 675 sess->sess_ops->InitiatorAlias); 676 677 rb += sprintf(page+rb, "LIO Session ID: %u " 678 "ISID: 0x%02x %02x %02x %02x %02x %02x " 679 "TSIH: %hu ", sess->sid, 680 sess->isid[0], sess->isid[1], sess->isid[2], 681 sess->isid[3], sess->isid[4], sess->isid[5], 682 sess->tsih); 683 rb += sprintf(page+rb, "SessionType: %s\n", 684 (sess->sess_ops->SessionType) ? 685 "Discovery" : "Normal"); 686 rb += sprintf(page+rb, "Session State: "); 687 switch (sess->session_state) { 688 case TARG_SESS_STATE_FREE: 689 rb += sprintf(page+rb, "TARG_SESS_FREE\n"); 690 break; 691 case TARG_SESS_STATE_ACTIVE: 692 rb += sprintf(page+rb, "TARG_SESS_STATE_ACTIVE\n"); 693 break; 694 case TARG_SESS_STATE_LOGGED_IN: 695 rb += sprintf(page+rb, "TARG_SESS_STATE_LOGGED_IN\n"); 696 break; 697 case TARG_SESS_STATE_FAILED: 698 rb += sprintf(page+rb, "TARG_SESS_STATE_FAILED\n"); 699 break; 700 case TARG_SESS_STATE_IN_CONTINUE: 701 rb += sprintf(page+rb, "TARG_SESS_STATE_IN_CONTINUE\n"); 702 break; 703 default: 704 rb += sprintf(page+rb, "ERROR: Unknown Session" 705 " State!\n"); 706 break; 707 } 708 709 rb += sprintf(page+rb, "---------------------[iSCSI Session" 710 " Values]-----------------------\n"); 711 rb += sprintf(page+rb, " CmdSN/WR : CmdSN/WC : ExpCmdSN" 712 " : MaxCmdSN : ITT : TTT\n"); 713 rb += sprintf(page+rb, " 0x%08x 0x%08x 0x%08x 0x%08x" 714 " 0x%08x 0x%08x\n", 715 sess->cmdsn_window, 716 (sess->max_cmd_sn - sess->exp_cmd_sn) + 1, 717 sess->exp_cmd_sn, sess->max_cmd_sn, 718 sess->init_task_tag, sess->targ_xfer_tag); 719 rb += sprintf(page+rb, "----------------------[iSCSI" 720 " Connections]-------------------------\n"); 721 722 spin_lock(&sess->conn_lock); 723 list_for_each_entry(conn, &sess->sess_conn_list, conn_list) { 724 rb += sprintf(page+rb, "CID: %hu Connection" 725 " State: ", conn->cid); 726 switch (conn->conn_state) { 727 case TARG_CONN_STATE_FREE: 728 rb += sprintf(page+rb, 729 "TARG_CONN_STATE_FREE\n"); 730 break; 731 case TARG_CONN_STATE_XPT_UP: 732 rb += sprintf(page+rb, 733 "TARG_CONN_STATE_XPT_UP\n"); 734 break; 735 case TARG_CONN_STATE_IN_LOGIN: 736 rb += sprintf(page+rb, 737 "TARG_CONN_STATE_IN_LOGIN\n"); 738 break; 739 case TARG_CONN_STATE_LOGGED_IN: 740 rb += sprintf(page+rb, 741 "TARG_CONN_STATE_LOGGED_IN\n"); 742 break; 743 case TARG_CONN_STATE_IN_LOGOUT: 744 rb += sprintf(page+rb, 745 "TARG_CONN_STATE_IN_LOGOUT\n"); 746 break; 747 case TARG_CONN_STATE_LOGOUT_REQUESTED: 748 rb += sprintf(page+rb, 749 "TARG_CONN_STATE_LOGOUT_REQUESTED\n"); 750 break; 751 case TARG_CONN_STATE_CLEANUP_WAIT: 752 rb += sprintf(page+rb, 753 "TARG_CONN_STATE_CLEANUP_WAIT\n"); 754 break; 755 default: 756 rb += sprintf(page+rb, 757 "ERROR: Unknown Connection State!\n"); 758 break; 759 } 760 761 rb += sprintf(page+rb, " Address %s %s", conn->login_ip, 762 (conn->network_transport == ISCSI_TCP) ? 763 "TCP" : "SCTP"); 764 rb += sprintf(page+rb, " StatSN: 0x%08x\n", 765 conn->stat_sn); 766 } 767 spin_unlock(&sess->conn_lock); 768 } 769 spin_unlock_bh(&se_nacl->nacl_sess_lock); 770 771 return rb; 772 } 773 774 TF_NACL_BASE_ATTR_RO(lio_target, info); 775 776 static ssize_t lio_target_nacl_show_cmdsn_depth( 777 struct se_node_acl *se_nacl, 778 char *page) 779 { 780 return sprintf(page, "%u\n", se_nacl->queue_depth); 781 } 782 783 static ssize_t lio_target_nacl_store_cmdsn_depth( 784 struct se_node_acl *se_nacl, 785 const char *page, 786 size_t count) 787 { 788 struct se_portal_group *se_tpg = se_nacl->se_tpg; 789 struct iscsi_portal_group *tpg = container_of(se_tpg, 790 struct iscsi_portal_group, tpg_se_tpg); 791 struct config_item *acl_ci, *tpg_ci, *wwn_ci; 792 char *endptr; 793 u32 cmdsn_depth = 0; 794 int ret; 795 796 cmdsn_depth = simple_strtoul(page, &endptr, 0); 797 if (cmdsn_depth > TA_DEFAULT_CMDSN_DEPTH_MAX) { 798 pr_err("Passed cmdsn_depth: %u exceeds" 799 " TA_DEFAULT_CMDSN_DEPTH_MAX: %u\n", cmdsn_depth, 800 TA_DEFAULT_CMDSN_DEPTH_MAX); 801 return -EINVAL; 802 } 803 acl_ci = &se_nacl->acl_group.cg_item; 804 if (!acl_ci) { 805 pr_err("Unable to locatel acl_ci\n"); 806 return -EINVAL; 807 } 808 tpg_ci = &acl_ci->ci_parent->ci_group->cg_item; 809 if (!tpg_ci) { 810 pr_err("Unable to locate tpg_ci\n"); 811 return -EINVAL; 812 } 813 wwn_ci = &tpg_ci->ci_group->cg_item; 814 if (!wwn_ci) { 815 pr_err("Unable to locate config_item wwn_ci\n"); 816 return -EINVAL; 817 } 818 819 if (iscsit_get_tpg(tpg) < 0) 820 return -EINVAL; 821 /* 822 * iscsit_tpg_set_initiator_node_queue_depth() assumes force=1 823 */ 824 ret = iscsit_tpg_set_initiator_node_queue_depth(tpg, 825 config_item_name(acl_ci), cmdsn_depth, 1); 826 827 pr_debug("LIO_Target_ConfigFS: %s/%s Set CmdSN Window: %u for" 828 "InitiatorName: %s\n", config_item_name(wwn_ci), 829 config_item_name(tpg_ci), cmdsn_depth, 830 config_item_name(acl_ci)); 831 832 iscsit_put_tpg(tpg); 833 return (!ret) ? count : (ssize_t)ret; 834 } 835 836 TF_NACL_BASE_ATTR(lio_target, cmdsn_depth, S_IRUGO | S_IWUSR); 837 838 static ssize_t lio_target_nacl_show_tag( 839 struct se_node_acl *se_nacl, 840 char *page) 841 { 842 return snprintf(page, PAGE_SIZE, "%s", se_nacl->acl_tag); 843 } 844 845 static ssize_t lio_target_nacl_store_tag( 846 struct se_node_acl *se_nacl, 847 const char *page, 848 size_t count) 849 { 850 int ret; 851 852 ret = core_tpg_set_initiator_node_tag(se_nacl->se_tpg, se_nacl, page); 853 854 if (ret < 0) 855 return ret; 856 return count; 857 } 858 859 TF_NACL_BASE_ATTR(lio_target, tag, S_IRUGO | S_IWUSR); 860 861 static struct configfs_attribute *lio_target_initiator_attrs[] = { 862 &lio_target_nacl_info.attr, 863 &lio_target_nacl_cmdsn_depth.attr, 864 &lio_target_nacl_tag.attr, 865 NULL, 866 }; 867 868 static struct se_node_acl *lio_tpg_alloc_fabric_acl( 869 struct se_portal_group *se_tpg) 870 { 871 struct iscsi_node_acl *acl; 872 873 acl = kzalloc(sizeof(struct iscsi_node_acl), GFP_KERNEL); 874 if (!acl) { 875 pr_err("Unable to allocate memory for struct iscsi_node_acl\n"); 876 return NULL; 877 } 878 879 return &acl->se_node_acl; 880 } 881 882 static struct se_node_acl *lio_target_make_nodeacl( 883 struct se_portal_group *se_tpg, 884 struct config_group *group, 885 const char *name) 886 { 887 struct config_group *stats_cg; 888 struct iscsi_node_acl *acl; 889 struct se_node_acl *se_nacl_new, *se_nacl; 890 struct iscsi_portal_group *tpg = container_of(se_tpg, 891 struct iscsi_portal_group, tpg_se_tpg); 892 u32 cmdsn_depth; 893 894 se_nacl_new = lio_tpg_alloc_fabric_acl(se_tpg); 895 if (!se_nacl_new) 896 return ERR_PTR(-ENOMEM); 897 898 cmdsn_depth = ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth; 899 /* 900 * se_nacl_new may be released by core_tpg_add_initiator_node_acl() 901 * when converting a NdoeACL from demo mode -> explict 902 */ 903 se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new, 904 name, cmdsn_depth); 905 if (IS_ERR(se_nacl)) 906 return se_nacl; 907 908 acl = container_of(se_nacl, struct iscsi_node_acl, se_node_acl); 909 stats_cg = &se_nacl->acl_fabric_stat_group; 910 911 stats_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, 912 GFP_KERNEL); 913 if (!stats_cg->default_groups) { 914 pr_err("Unable to allocate memory for" 915 " stats_cg->default_groups\n"); 916 core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1); 917 kfree(acl); 918 return ERR_PTR(-ENOMEM); 919 } 920 921 stats_cg->default_groups[0] = &NODE_STAT_GRPS(acl)->iscsi_sess_stats_group; 922 stats_cg->default_groups[1] = NULL; 923 config_group_init_type_name(&NODE_STAT_GRPS(acl)->iscsi_sess_stats_group, 924 "iscsi_sess_stats", &iscsi_stat_sess_cit); 925 926 return se_nacl; 927 } 928 929 static void lio_target_drop_nodeacl( 930 struct se_node_acl *se_nacl) 931 { 932 struct se_portal_group *se_tpg = se_nacl->se_tpg; 933 struct iscsi_node_acl *acl = container_of(se_nacl, 934 struct iscsi_node_acl, se_node_acl); 935 struct config_item *df_item; 936 struct config_group *stats_cg; 937 int i; 938 939 stats_cg = &acl->se_node_acl.acl_fabric_stat_group; 940 for (i = 0; stats_cg->default_groups[i]; i++) { 941 df_item = &stats_cg->default_groups[i]->cg_item; 942 stats_cg->default_groups[i] = NULL; 943 config_item_put(df_item); 944 } 945 kfree(stats_cg->default_groups); 946 947 core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1); 948 kfree(acl); 949 } 950 951 /* End items for lio_target_acl_cit */ 952 953 /* Start items for lio_target_tpg_attrib_cit */ 954 955 #define DEF_TPG_ATTRIB(name) \ 956 \ 957 static ssize_t iscsi_tpg_attrib_show_##name( \ 958 struct se_portal_group *se_tpg, \ 959 char *page) \ 960 { \ 961 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 962 struct iscsi_portal_group, tpg_se_tpg); \ 963 ssize_t rb; \ 964 \ 965 if (iscsit_get_tpg(tpg) < 0) \ 966 return -EINVAL; \ 967 \ 968 rb = sprintf(page, "%u\n", ISCSI_TPG_ATTRIB(tpg)->name); \ 969 iscsit_put_tpg(tpg); \ 970 return rb; \ 971 } \ 972 \ 973 static ssize_t iscsi_tpg_attrib_store_##name( \ 974 struct se_portal_group *se_tpg, \ 975 const char *page, \ 976 size_t count) \ 977 { \ 978 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 979 struct iscsi_portal_group, tpg_se_tpg); \ 980 char *endptr; \ 981 u32 val; \ 982 int ret; \ 983 \ 984 if (iscsit_get_tpg(tpg) < 0) \ 985 return -EINVAL; \ 986 \ 987 val = simple_strtoul(page, &endptr, 0); \ 988 ret = iscsit_ta_##name(tpg, val); \ 989 if (ret < 0) \ 990 goto out; \ 991 \ 992 iscsit_put_tpg(tpg); \ 993 return count; \ 994 out: \ 995 iscsit_put_tpg(tpg); \ 996 return ret; \ 997 } 998 999 #define TPG_ATTR(_name, _mode) TF_TPG_ATTRIB_ATTR(iscsi, _name, _mode); 1000 1001 /* 1002 * Define iscsi_tpg_attrib_s_authentication 1003 */ 1004 DEF_TPG_ATTRIB(authentication); 1005 TPG_ATTR(authentication, S_IRUGO | S_IWUSR); 1006 /* 1007 * Define iscsi_tpg_attrib_s_login_timeout 1008 */ 1009 DEF_TPG_ATTRIB(login_timeout); 1010 TPG_ATTR(login_timeout, S_IRUGO | S_IWUSR); 1011 /* 1012 * Define iscsi_tpg_attrib_s_netif_timeout 1013 */ 1014 DEF_TPG_ATTRIB(netif_timeout); 1015 TPG_ATTR(netif_timeout, S_IRUGO | S_IWUSR); 1016 /* 1017 * Define iscsi_tpg_attrib_s_generate_node_acls 1018 */ 1019 DEF_TPG_ATTRIB(generate_node_acls); 1020 TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR); 1021 /* 1022 * Define iscsi_tpg_attrib_s_default_cmdsn_depth 1023 */ 1024 DEF_TPG_ATTRIB(default_cmdsn_depth); 1025 TPG_ATTR(default_cmdsn_depth, S_IRUGO | S_IWUSR); 1026 /* 1027 Define iscsi_tpg_attrib_s_cache_dynamic_acls 1028 */ 1029 DEF_TPG_ATTRIB(cache_dynamic_acls); 1030 TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR); 1031 /* 1032 * Define iscsi_tpg_attrib_s_demo_mode_write_protect 1033 */ 1034 DEF_TPG_ATTRIB(demo_mode_write_protect); 1035 TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR); 1036 /* 1037 * Define iscsi_tpg_attrib_s_prod_mode_write_protect 1038 */ 1039 DEF_TPG_ATTRIB(prod_mode_write_protect); 1040 TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR); 1041 1042 static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = { 1043 &iscsi_tpg_attrib_authentication.attr, 1044 &iscsi_tpg_attrib_login_timeout.attr, 1045 &iscsi_tpg_attrib_netif_timeout.attr, 1046 &iscsi_tpg_attrib_generate_node_acls.attr, 1047 &iscsi_tpg_attrib_default_cmdsn_depth.attr, 1048 &iscsi_tpg_attrib_cache_dynamic_acls.attr, 1049 &iscsi_tpg_attrib_demo_mode_write_protect.attr, 1050 &iscsi_tpg_attrib_prod_mode_write_protect.attr, 1051 NULL, 1052 }; 1053 1054 /* End items for lio_target_tpg_attrib_cit */ 1055 1056 /* Start items for lio_target_tpg_param_cit */ 1057 1058 #define DEF_TPG_PARAM(name) \ 1059 static ssize_t iscsi_tpg_param_show_##name( \ 1060 struct se_portal_group *se_tpg, \ 1061 char *page) \ 1062 { \ 1063 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 1064 struct iscsi_portal_group, tpg_se_tpg); \ 1065 struct iscsi_param *param; \ 1066 ssize_t rb; \ 1067 \ 1068 if (iscsit_get_tpg(tpg) < 0) \ 1069 return -EINVAL; \ 1070 \ 1071 param = iscsi_find_param_from_key(__stringify(name), \ 1072 tpg->param_list); \ 1073 if (!param) { \ 1074 iscsit_put_tpg(tpg); \ 1075 return -EINVAL; \ 1076 } \ 1077 rb = snprintf(page, PAGE_SIZE, "%s\n", param->value); \ 1078 \ 1079 iscsit_put_tpg(tpg); \ 1080 return rb; \ 1081 } \ 1082 static ssize_t iscsi_tpg_param_store_##name( \ 1083 struct se_portal_group *se_tpg, \ 1084 const char *page, \ 1085 size_t count) \ 1086 { \ 1087 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 1088 struct iscsi_portal_group, tpg_se_tpg); \ 1089 char *buf; \ 1090 int ret; \ 1091 \ 1092 buf = kzalloc(PAGE_SIZE, GFP_KERNEL); \ 1093 if (!buf) \ 1094 return -ENOMEM; \ 1095 snprintf(buf, PAGE_SIZE, "%s=%s", __stringify(name), page); \ 1096 buf[strlen(buf)-1] = '\0'; /* Kill newline */ \ 1097 \ 1098 if (iscsit_get_tpg(tpg) < 0) { \ 1099 kfree(buf); \ 1100 return -EINVAL; \ 1101 } \ 1102 \ 1103 ret = iscsi_change_param_value(buf, tpg->param_list, 1); \ 1104 if (ret < 0) \ 1105 goto out; \ 1106 \ 1107 kfree(buf); \ 1108 iscsit_put_tpg(tpg); \ 1109 return count; \ 1110 out: \ 1111 kfree(buf); \ 1112 iscsit_put_tpg(tpg); \ 1113 return -EINVAL; \ 1114 } 1115 1116 #define TPG_PARAM_ATTR(_name, _mode) TF_TPG_PARAM_ATTR(iscsi, _name, _mode); 1117 1118 DEF_TPG_PARAM(AuthMethod); 1119 TPG_PARAM_ATTR(AuthMethod, S_IRUGO | S_IWUSR); 1120 1121 DEF_TPG_PARAM(HeaderDigest); 1122 TPG_PARAM_ATTR(HeaderDigest, S_IRUGO | S_IWUSR); 1123 1124 DEF_TPG_PARAM(DataDigest); 1125 TPG_PARAM_ATTR(DataDigest, S_IRUGO | S_IWUSR); 1126 1127 DEF_TPG_PARAM(MaxConnections); 1128 TPG_PARAM_ATTR(MaxConnections, S_IRUGO | S_IWUSR); 1129 1130 DEF_TPG_PARAM(TargetAlias); 1131 TPG_PARAM_ATTR(TargetAlias, S_IRUGO | S_IWUSR); 1132 1133 DEF_TPG_PARAM(InitialR2T); 1134 TPG_PARAM_ATTR(InitialR2T, S_IRUGO | S_IWUSR); 1135 1136 DEF_TPG_PARAM(ImmediateData); 1137 TPG_PARAM_ATTR(ImmediateData, S_IRUGO | S_IWUSR); 1138 1139 DEF_TPG_PARAM(MaxRecvDataSegmentLength); 1140 TPG_PARAM_ATTR(MaxRecvDataSegmentLength, S_IRUGO | S_IWUSR); 1141 1142 DEF_TPG_PARAM(MaxXmitDataSegmentLength); 1143 TPG_PARAM_ATTR(MaxXmitDataSegmentLength, S_IRUGO | S_IWUSR); 1144 1145 DEF_TPG_PARAM(MaxBurstLength); 1146 TPG_PARAM_ATTR(MaxBurstLength, S_IRUGO | S_IWUSR); 1147 1148 DEF_TPG_PARAM(FirstBurstLength); 1149 TPG_PARAM_ATTR(FirstBurstLength, S_IRUGO | S_IWUSR); 1150 1151 DEF_TPG_PARAM(DefaultTime2Wait); 1152 TPG_PARAM_ATTR(DefaultTime2Wait, S_IRUGO | S_IWUSR); 1153 1154 DEF_TPG_PARAM(DefaultTime2Retain); 1155 TPG_PARAM_ATTR(DefaultTime2Retain, S_IRUGO | S_IWUSR); 1156 1157 DEF_TPG_PARAM(MaxOutstandingR2T); 1158 TPG_PARAM_ATTR(MaxOutstandingR2T, S_IRUGO | S_IWUSR); 1159 1160 DEF_TPG_PARAM(DataPDUInOrder); 1161 TPG_PARAM_ATTR(DataPDUInOrder, S_IRUGO | S_IWUSR); 1162 1163 DEF_TPG_PARAM(DataSequenceInOrder); 1164 TPG_PARAM_ATTR(DataSequenceInOrder, S_IRUGO | S_IWUSR); 1165 1166 DEF_TPG_PARAM(ErrorRecoveryLevel); 1167 TPG_PARAM_ATTR(ErrorRecoveryLevel, S_IRUGO | S_IWUSR); 1168 1169 DEF_TPG_PARAM(IFMarker); 1170 TPG_PARAM_ATTR(IFMarker, S_IRUGO | S_IWUSR); 1171 1172 DEF_TPG_PARAM(OFMarker); 1173 TPG_PARAM_ATTR(OFMarker, S_IRUGO | S_IWUSR); 1174 1175 DEF_TPG_PARAM(IFMarkInt); 1176 TPG_PARAM_ATTR(IFMarkInt, S_IRUGO | S_IWUSR); 1177 1178 DEF_TPG_PARAM(OFMarkInt); 1179 TPG_PARAM_ATTR(OFMarkInt, S_IRUGO | S_IWUSR); 1180 1181 static struct configfs_attribute *lio_target_tpg_param_attrs[] = { 1182 &iscsi_tpg_param_AuthMethod.attr, 1183 &iscsi_tpg_param_HeaderDigest.attr, 1184 &iscsi_tpg_param_DataDigest.attr, 1185 &iscsi_tpg_param_MaxConnections.attr, 1186 &iscsi_tpg_param_TargetAlias.attr, 1187 &iscsi_tpg_param_InitialR2T.attr, 1188 &iscsi_tpg_param_ImmediateData.attr, 1189 &iscsi_tpg_param_MaxRecvDataSegmentLength.attr, 1190 &iscsi_tpg_param_MaxXmitDataSegmentLength.attr, 1191 &iscsi_tpg_param_MaxBurstLength.attr, 1192 &iscsi_tpg_param_FirstBurstLength.attr, 1193 &iscsi_tpg_param_DefaultTime2Wait.attr, 1194 &iscsi_tpg_param_DefaultTime2Retain.attr, 1195 &iscsi_tpg_param_MaxOutstandingR2T.attr, 1196 &iscsi_tpg_param_DataPDUInOrder.attr, 1197 &iscsi_tpg_param_DataSequenceInOrder.attr, 1198 &iscsi_tpg_param_ErrorRecoveryLevel.attr, 1199 &iscsi_tpg_param_IFMarker.attr, 1200 &iscsi_tpg_param_OFMarker.attr, 1201 &iscsi_tpg_param_IFMarkInt.attr, 1202 &iscsi_tpg_param_OFMarkInt.attr, 1203 NULL, 1204 }; 1205 1206 /* End items for lio_target_tpg_param_cit */ 1207 1208 /* Start items for lio_target_tpg_cit */ 1209 1210 static ssize_t lio_target_tpg_show_enable( 1211 struct se_portal_group *se_tpg, 1212 char *page) 1213 { 1214 struct iscsi_portal_group *tpg = container_of(se_tpg, 1215 struct iscsi_portal_group, tpg_se_tpg); 1216 ssize_t len; 1217 1218 spin_lock(&tpg->tpg_state_lock); 1219 len = sprintf(page, "%d\n", 1220 (tpg->tpg_state == TPG_STATE_ACTIVE) ? 1 : 0); 1221 spin_unlock(&tpg->tpg_state_lock); 1222 1223 return len; 1224 } 1225 1226 static ssize_t lio_target_tpg_store_enable( 1227 struct se_portal_group *se_tpg, 1228 const char *page, 1229 size_t count) 1230 { 1231 struct iscsi_portal_group *tpg = container_of(se_tpg, 1232 struct iscsi_portal_group, tpg_se_tpg); 1233 char *endptr; 1234 u32 op; 1235 int ret = 0; 1236 1237 op = simple_strtoul(page, &endptr, 0); 1238 if ((op != 1) && (op != 0)) { 1239 pr_err("Illegal value for tpg_enable: %u\n", op); 1240 return -EINVAL; 1241 } 1242 1243 ret = iscsit_get_tpg(tpg); 1244 if (ret < 0) 1245 return -EINVAL; 1246 1247 if (op) { 1248 ret = iscsit_tpg_enable_portal_group(tpg); 1249 if (ret < 0) 1250 goto out; 1251 } else { 1252 /* 1253 * iscsit_tpg_disable_portal_group() assumes force=1 1254 */ 1255 ret = iscsit_tpg_disable_portal_group(tpg, 1); 1256 if (ret < 0) 1257 goto out; 1258 } 1259 1260 iscsit_put_tpg(tpg); 1261 return count; 1262 out: 1263 iscsit_put_tpg(tpg); 1264 return -EINVAL; 1265 } 1266 1267 TF_TPG_BASE_ATTR(lio_target, enable, S_IRUGO | S_IWUSR); 1268 1269 static struct configfs_attribute *lio_target_tpg_attrs[] = { 1270 &lio_target_tpg_enable.attr, 1271 NULL, 1272 }; 1273 1274 /* End items for lio_target_tpg_cit */ 1275 1276 /* Start items for lio_target_tiqn_cit */ 1277 1278 static struct se_portal_group *lio_target_tiqn_addtpg( 1279 struct se_wwn *wwn, 1280 struct config_group *group, 1281 const char *name) 1282 { 1283 struct iscsi_portal_group *tpg; 1284 struct iscsi_tiqn *tiqn; 1285 char *tpgt_str, *end_ptr; 1286 int ret = 0; 1287 unsigned short int tpgt; 1288 1289 tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn); 1290 /* 1291 * Only tpgt_# directory groups can be created below 1292 * target/iscsi/iqn.superturodiskarry/ 1293 */ 1294 tpgt_str = strstr(name, "tpgt_"); 1295 if (!tpgt_str) { 1296 pr_err("Unable to locate \"tpgt_#\" directory" 1297 " group\n"); 1298 return NULL; 1299 } 1300 tpgt_str += 5; /* Skip ahead of "tpgt_" */ 1301 tpgt = (unsigned short int) simple_strtoul(tpgt_str, &end_ptr, 0); 1302 1303 tpg = iscsit_alloc_portal_group(tiqn, tpgt); 1304 if (!tpg) 1305 return NULL; 1306 1307 ret = core_tpg_register( 1308 &lio_target_fabric_configfs->tf_ops, 1309 wwn, &tpg->tpg_se_tpg, tpg, 1310 TRANSPORT_TPG_TYPE_NORMAL); 1311 if (ret < 0) 1312 return NULL; 1313 1314 ret = iscsit_tpg_add_portal_group(tiqn, tpg); 1315 if (ret != 0) 1316 goto out; 1317 1318 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn); 1319 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated TPG: %s\n", 1320 name); 1321 return &tpg->tpg_se_tpg; 1322 out: 1323 core_tpg_deregister(&tpg->tpg_se_tpg); 1324 kfree(tpg); 1325 return NULL; 1326 } 1327 1328 static void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg) 1329 { 1330 struct iscsi_portal_group *tpg; 1331 struct iscsi_tiqn *tiqn; 1332 1333 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); 1334 tiqn = tpg->tpg_tiqn; 1335 /* 1336 * iscsit_tpg_del_portal_group() assumes force=1 1337 */ 1338 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> Releasing TPG\n"); 1339 iscsit_tpg_del_portal_group(tiqn, tpg, 1); 1340 } 1341 1342 /* End items for lio_target_tiqn_cit */ 1343 1344 /* Start LIO-Target TIQN struct contig_item lio_target_cit */ 1345 1346 static ssize_t lio_target_wwn_show_attr_lio_version( 1347 struct target_fabric_configfs *tf, 1348 char *page) 1349 { 1350 return sprintf(page, "RisingTide Systems Linux-iSCSI Target "ISCSIT_VERSION"\n"); 1351 } 1352 1353 TF_WWN_ATTR_RO(lio_target, lio_version); 1354 1355 static struct configfs_attribute *lio_target_wwn_attrs[] = { 1356 &lio_target_wwn_lio_version.attr, 1357 NULL, 1358 }; 1359 1360 static struct se_wwn *lio_target_call_coreaddtiqn( 1361 struct target_fabric_configfs *tf, 1362 struct config_group *group, 1363 const char *name) 1364 { 1365 struct config_group *stats_cg; 1366 struct iscsi_tiqn *tiqn; 1367 1368 tiqn = iscsit_add_tiqn((unsigned char *)name); 1369 if (IS_ERR(tiqn)) 1370 return ERR_CAST(tiqn); 1371 /* 1372 * Setup struct iscsi_wwn_stat_grps for se_wwn->fabric_stat_group. 1373 */ 1374 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group; 1375 1376 stats_cg->default_groups = kmalloc(sizeof(struct config_group *) * 6, 1377 GFP_KERNEL); 1378 if (!stats_cg->default_groups) { 1379 pr_err("Unable to allocate memory for" 1380 " stats_cg->default_groups\n"); 1381 iscsit_del_tiqn(tiqn); 1382 return ERR_PTR(-ENOMEM); 1383 } 1384 1385 stats_cg->default_groups[0] = &WWN_STAT_GRPS(tiqn)->iscsi_instance_group; 1386 stats_cg->default_groups[1] = &WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group; 1387 stats_cg->default_groups[2] = &WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group; 1388 stats_cg->default_groups[3] = &WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group; 1389 stats_cg->default_groups[4] = &WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group; 1390 stats_cg->default_groups[5] = NULL; 1391 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_instance_group, 1392 "iscsi_instance", &iscsi_stat_instance_cit); 1393 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group, 1394 "iscsi_sess_err", &iscsi_stat_sess_err_cit); 1395 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group, 1396 "iscsi_tgt_attr", &iscsi_stat_tgt_attr_cit); 1397 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group, 1398 "iscsi_login_stats", &iscsi_stat_login_cit); 1399 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group, 1400 "iscsi_logout_stats", &iscsi_stat_logout_cit); 1401 1402 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn); 1403 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated Node:" 1404 " %s\n", name); 1405 return &tiqn->tiqn_wwn; 1406 } 1407 1408 static void lio_target_call_coredeltiqn( 1409 struct se_wwn *wwn) 1410 { 1411 struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn); 1412 struct config_item *df_item; 1413 struct config_group *stats_cg; 1414 int i; 1415 1416 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group; 1417 for (i = 0; stats_cg->default_groups[i]; i++) { 1418 df_item = &stats_cg->default_groups[i]->cg_item; 1419 stats_cg->default_groups[i] = NULL; 1420 config_item_put(df_item); 1421 } 1422 kfree(stats_cg->default_groups); 1423 1424 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s\n", 1425 tiqn->tiqn); 1426 iscsit_del_tiqn(tiqn); 1427 } 1428 1429 /* End LIO-Target TIQN struct contig_lio_target_cit */ 1430 1431 /* Start lio_target_discovery_auth_cit */ 1432 1433 #define DEF_DISC_AUTH_STR(name, flags) \ 1434 __DEF_NACL_AUTH_STR(disc, name, flags) \ 1435 static ssize_t iscsi_disc_show_##name( \ 1436 struct target_fabric_configfs *tf, \ 1437 char *page) \ 1438 { \ 1439 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \ 1440 page); \ 1441 } \ 1442 static ssize_t iscsi_disc_store_##name( \ 1443 struct target_fabric_configfs *tf, \ 1444 const char *page, \ 1445 size_t count) \ 1446 { \ 1447 return __iscsi_disc_store_##name(&iscsit_global->discovery_acl, \ 1448 page, count); \ 1449 } 1450 1451 #define DEF_DISC_AUTH_INT(name) \ 1452 __DEF_NACL_AUTH_INT(disc, name) \ 1453 static ssize_t iscsi_disc_show_##name( \ 1454 struct target_fabric_configfs *tf, \ 1455 char *page) \ 1456 { \ 1457 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \ 1458 page); \ 1459 } 1460 1461 #define DISC_AUTH_ATTR(_name, _mode) TF_DISC_ATTR(iscsi, _name, _mode) 1462 #define DISC_AUTH_ATTR_RO(_name) TF_DISC_ATTR_RO(iscsi, _name) 1463 1464 /* 1465 * One-way authentication userid 1466 */ 1467 DEF_DISC_AUTH_STR(userid, NAF_USERID_SET); 1468 DISC_AUTH_ATTR(userid, S_IRUGO | S_IWUSR); 1469 /* 1470 * One-way authentication password 1471 */ 1472 DEF_DISC_AUTH_STR(password, NAF_PASSWORD_SET); 1473 DISC_AUTH_ATTR(password, S_IRUGO | S_IWUSR); 1474 /* 1475 * Enforce mutual authentication 1476 */ 1477 DEF_DISC_AUTH_INT(authenticate_target); 1478 DISC_AUTH_ATTR_RO(authenticate_target); 1479 /* 1480 * Mutual authentication userid 1481 */ 1482 DEF_DISC_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); 1483 DISC_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR); 1484 /* 1485 * Mutual authentication password 1486 */ 1487 DEF_DISC_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); 1488 DISC_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR); 1489 1490 /* 1491 * enforce_discovery_auth 1492 */ 1493 static ssize_t iscsi_disc_show_enforce_discovery_auth( 1494 struct target_fabric_configfs *tf, 1495 char *page) 1496 { 1497 struct iscsi_node_auth *discovery_auth = &iscsit_global->discovery_acl.node_auth; 1498 1499 return sprintf(page, "%d\n", discovery_auth->enforce_discovery_auth); 1500 } 1501 1502 static ssize_t iscsi_disc_store_enforce_discovery_auth( 1503 struct target_fabric_configfs *tf, 1504 const char *page, 1505 size_t count) 1506 { 1507 struct iscsi_param *param; 1508 struct iscsi_portal_group *discovery_tpg = iscsit_global->discovery_tpg; 1509 char *endptr; 1510 u32 op; 1511 1512 op = simple_strtoul(page, &endptr, 0); 1513 if ((op != 1) && (op != 0)) { 1514 pr_err("Illegal value for enforce_discovery_auth:" 1515 " %u\n", op); 1516 return -EINVAL; 1517 } 1518 1519 if (!discovery_tpg) { 1520 pr_err("iscsit_global->discovery_tpg is NULL\n"); 1521 return -EINVAL; 1522 } 1523 1524 param = iscsi_find_param_from_key(AUTHMETHOD, 1525 discovery_tpg->param_list); 1526 if (!param) 1527 return -EINVAL; 1528 1529 if (op) { 1530 /* 1531 * Reset the AuthMethod key to CHAP. 1532 */ 1533 if (iscsi_update_param_value(param, CHAP) < 0) 1534 return -EINVAL; 1535 1536 discovery_tpg->tpg_attrib.authentication = 1; 1537 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 1; 1538 pr_debug("LIO-CORE[0] Successfully enabled" 1539 " authentication enforcement for iSCSI" 1540 " Discovery TPG\n"); 1541 } else { 1542 /* 1543 * Reset the AuthMethod key to CHAP,None 1544 */ 1545 if (iscsi_update_param_value(param, "CHAP,None") < 0) 1546 return -EINVAL; 1547 1548 discovery_tpg->tpg_attrib.authentication = 0; 1549 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 0; 1550 pr_debug("LIO-CORE[0] Successfully disabled" 1551 " authentication enforcement for iSCSI" 1552 " Discovery TPG\n"); 1553 } 1554 1555 return count; 1556 } 1557 1558 DISC_AUTH_ATTR(enforce_discovery_auth, S_IRUGO | S_IWUSR); 1559 1560 static struct configfs_attribute *lio_target_discovery_auth_attrs[] = { 1561 &iscsi_disc_userid.attr, 1562 &iscsi_disc_password.attr, 1563 &iscsi_disc_authenticate_target.attr, 1564 &iscsi_disc_userid_mutual.attr, 1565 &iscsi_disc_password_mutual.attr, 1566 &iscsi_disc_enforce_discovery_auth.attr, 1567 NULL, 1568 }; 1569 1570 /* End lio_target_discovery_auth_cit */ 1571 1572 /* Start functions for target_core_fabric_ops */ 1573 1574 static char *iscsi_get_fabric_name(void) 1575 { 1576 return "iSCSI"; 1577 } 1578 1579 static u32 iscsi_get_task_tag(struct se_cmd *se_cmd) 1580 { 1581 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1582 1583 /* only used for printks or comparism with ->ref_task_tag */ 1584 return (__force u32)cmd->init_task_tag; 1585 } 1586 1587 static int iscsi_get_cmd_state(struct se_cmd *se_cmd) 1588 { 1589 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1590 1591 return cmd->i_state; 1592 } 1593 1594 static u32 lio_sess_get_index(struct se_session *se_sess) 1595 { 1596 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1597 1598 return sess->session_index; 1599 } 1600 1601 static u32 lio_sess_get_initiator_sid( 1602 struct se_session *se_sess, 1603 unsigned char *buf, 1604 u32 size) 1605 { 1606 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1607 /* 1608 * iSCSI Initiator Session Identifier from RFC-3720. 1609 */ 1610 return snprintf(buf, size, "%02x%02x%02x%02x%02x%02x", 1611 sess->isid[0], sess->isid[1], sess->isid[2], 1612 sess->isid[3], sess->isid[4], sess->isid[5]); 1613 } 1614 1615 static int lio_queue_data_in(struct se_cmd *se_cmd) 1616 { 1617 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1618 1619 cmd->i_state = ISTATE_SEND_DATAIN; 1620 cmd->conn->conn_transport->iscsit_queue_data_in(cmd->conn, cmd); 1621 1622 return 0; 1623 } 1624 1625 static int lio_write_pending(struct se_cmd *se_cmd) 1626 { 1627 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1628 struct iscsi_conn *conn = cmd->conn; 1629 1630 if (!cmd->immediate_data && !cmd->unsolicited_data) 1631 return conn->conn_transport->iscsit_get_dataout(conn, cmd, false); 1632 1633 return 0; 1634 } 1635 1636 static int lio_write_pending_status(struct se_cmd *se_cmd) 1637 { 1638 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1639 int ret; 1640 1641 spin_lock_bh(&cmd->istate_lock); 1642 ret = !(cmd->cmd_flags & ICF_GOT_LAST_DATAOUT); 1643 spin_unlock_bh(&cmd->istate_lock); 1644 1645 return ret; 1646 } 1647 1648 static int lio_queue_status(struct se_cmd *se_cmd) 1649 { 1650 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1651 1652 cmd->i_state = ISTATE_SEND_STATUS; 1653 cmd->conn->conn_transport->iscsit_queue_status(cmd->conn, cmd); 1654 1655 return 0; 1656 } 1657 1658 static int lio_queue_tm_rsp(struct se_cmd *se_cmd) 1659 { 1660 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1661 1662 cmd->i_state = ISTATE_SEND_TASKMGTRSP; 1663 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); 1664 return 0; 1665 } 1666 1667 static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg) 1668 { 1669 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1670 1671 return &tpg->tpg_tiqn->tiqn[0]; 1672 } 1673 1674 static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg) 1675 { 1676 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1677 1678 return tpg->tpgt; 1679 } 1680 1681 static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg) 1682 { 1683 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1684 1685 return ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth; 1686 } 1687 1688 static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg) 1689 { 1690 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1691 1692 return ISCSI_TPG_ATTRIB(tpg)->generate_node_acls; 1693 } 1694 1695 static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg) 1696 { 1697 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1698 1699 return ISCSI_TPG_ATTRIB(tpg)->cache_dynamic_acls; 1700 } 1701 1702 static int lio_tpg_check_demo_mode_write_protect( 1703 struct se_portal_group *se_tpg) 1704 { 1705 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1706 1707 return ISCSI_TPG_ATTRIB(tpg)->demo_mode_write_protect; 1708 } 1709 1710 static int lio_tpg_check_prod_mode_write_protect( 1711 struct se_portal_group *se_tpg) 1712 { 1713 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1714 1715 return ISCSI_TPG_ATTRIB(tpg)->prod_mode_write_protect; 1716 } 1717 1718 static void lio_tpg_release_fabric_acl( 1719 struct se_portal_group *se_tpg, 1720 struct se_node_acl *se_acl) 1721 { 1722 struct iscsi_node_acl *acl = container_of(se_acl, 1723 struct iscsi_node_acl, se_node_acl); 1724 kfree(acl); 1725 } 1726 1727 /* 1728 * Called with spin_lock_bh(struct se_portal_group->session_lock) held.. 1729 * 1730 * Also, this function calls iscsit_inc_session_usage_count() on the 1731 * struct iscsi_session in question. 1732 */ 1733 static int lio_tpg_shutdown_session(struct se_session *se_sess) 1734 { 1735 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1736 1737 spin_lock(&sess->conn_lock); 1738 if (atomic_read(&sess->session_fall_back_to_erl0) || 1739 atomic_read(&sess->session_logout) || 1740 (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) { 1741 spin_unlock(&sess->conn_lock); 1742 return 0; 1743 } 1744 atomic_set(&sess->session_reinstatement, 1); 1745 spin_unlock(&sess->conn_lock); 1746 1747 iscsit_stop_time2retain_timer(sess); 1748 iscsit_stop_session(sess, 1, 1); 1749 1750 return 1; 1751 } 1752 1753 /* 1754 * Calls iscsit_dec_session_usage_count() as inverse of 1755 * lio_tpg_shutdown_session() 1756 */ 1757 static void lio_tpg_close_session(struct se_session *se_sess) 1758 { 1759 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1760 /* 1761 * If the iSCSI Session for the iSCSI Initiator Node exists, 1762 * forcefully shutdown the iSCSI NEXUS. 1763 */ 1764 iscsit_close_session(sess); 1765 } 1766 1767 static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg) 1768 { 1769 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1770 1771 return tpg->tpg_tiqn->tiqn_index; 1772 } 1773 1774 static void lio_set_default_node_attributes(struct se_node_acl *se_acl) 1775 { 1776 struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl, 1777 se_node_acl); 1778 1779 ISCSI_NODE_ATTRIB(acl)->nacl = acl; 1780 iscsit_set_default_node_attribues(acl); 1781 } 1782 1783 static int lio_check_stop_free(struct se_cmd *se_cmd) 1784 { 1785 return target_put_sess_cmd(se_cmd->se_sess, se_cmd); 1786 } 1787 1788 static void lio_release_cmd(struct se_cmd *se_cmd) 1789 { 1790 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1791 1792 pr_debug("Entering lio_release_cmd for se_cmd: %p\n", se_cmd); 1793 cmd->release_cmd(cmd); 1794 } 1795 1796 /* End functions for target_core_fabric_ops */ 1797 1798 int iscsi_target_register_configfs(void) 1799 { 1800 struct target_fabric_configfs *fabric; 1801 int ret; 1802 1803 lio_target_fabric_configfs = NULL; 1804 fabric = target_fabric_configfs_init(THIS_MODULE, "iscsi"); 1805 if (IS_ERR(fabric)) { 1806 pr_err("target_fabric_configfs_init() for" 1807 " LIO-Target failed!\n"); 1808 return PTR_ERR(fabric); 1809 } 1810 /* 1811 * Setup the fabric API of function pointers used by target_core_mod.. 1812 */ 1813 fabric->tf_ops.get_fabric_name = &iscsi_get_fabric_name; 1814 fabric->tf_ops.get_fabric_proto_ident = &iscsi_get_fabric_proto_ident; 1815 fabric->tf_ops.tpg_get_wwn = &lio_tpg_get_endpoint_wwn; 1816 fabric->tf_ops.tpg_get_tag = &lio_tpg_get_tag; 1817 fabric->tf_ops.tpg_get_default_depth = &lio_tpg_get_default_depth; 1818 fabric->tf_ops.tpg_get_pr_transport_id = &iscsi_get_pr_transport_id; 1819 fabric->tf_ops.tpg_get_pr_transport_id_len = 1820 &iscsi_get_pr_transport_id_len; 1821 fabric->tf_ops.tpg_parse_pr_out_transport_id = 1822 &iscsi_parse_pr_out_transport_id; 1823 fabric->tf_ops.tpg_check_demo_mode = &lio_tpg_check_demo_mode; 1824 fabric->tf_ops.tpg_check_demo_mode_cache = 1825 &lio_tpg_check_demo_mode_cache; 1826 fabric->tf_ops.tpg_check_demo_mode_write_protect = 1827 &lio_tpg_check_demo_mode_write_protect; 1828 fabric->tf_ops.tpg_check_prod_mode_write_protect = 1829 &lio_tpg_check_prod_mode_write_protect; 1830 fabric->tf_ops.tpg_alloc_fabric_acl = &lio_tpg_alloc_fabric_acl; 1831 fabric->tf_ops.tpg_release_fabric_acl = &lio_tpg_release_fabric_acl; 1832 fabric->tf_ops.tpg_get_inst_index = &lio_tpg_get_inst_index; 1833 fabric->tf_ops.check_stop_free = &lio_check_stop_free, 1834 fabric->tf_ops.release_cmd = &lio_release_cmd; 1835 fabric->tf_ops.shutdown_session = &lio_tpg_shutdown_session; 1836 fabric->tf_ops.close_session = &lio_tpg_close_session; 1837 fabric->tf_ops.sess_get_index = &lio_sess_get_index; 1838 fabric->tf_ops.sess_get_initiator_sid = &lio_sess_get_initiator_sid; 1839 fabric->tf_ops.write_pending = &lio_write_pending; 1840 fabric->tf_ops.write_pending_status = &lio_write_pending_status; 1841 fabric->tf_ops.set_default_node_attributes = 1842 &lio_set_default_node_attributes; 1843 fabric->tf_ops.get_task_tag = &iscsi_get_task_tag; 1844 fabric->tf_ops.get_cmd_state = &iscsi_get_cmd_state; 1845 fabric->tf_ops.queue_data_in = &lio_queue_data_in; 1846 fabric->tf_ops.queue_status = &lio_queue_status; 1847 fabric->tf_ops.queue_tm_rsp = &lio_queue_tm_rsp; 1848 /* 1849 * Setup function pointers for generic logic in target_core_fabric_configfs.c 1850 */ 1851 fabric->tf_ops.fabric_make_wwn = &lio_target_call_coreaddtiqn; 1852 fabric->tf_ops.fabric_drop_wwn = &lio_target_call_coredeltiqn; 1853 fabric->tf_ops.fabric_make_tpg = &lio_target_tiqn_addtpg; 1854 fabric->tf_ops.fabric_drop_tpg = &lio_target_tiqn_deltpg; 1855 fabric->tf_ops.fabric_post_link = NULL; 1856 fabric->tf_ops.fabric_pre_unlink = NULL; 1857 fabric->tf_ops.fabric_make_np = &lio_target_call_addnptotpg; 1858 fabric->tf_ops.fabric_drop_np = &lio_target_call_delnpfromtpg; 1859 fabric->tf_ops.fabric_make_nodeacl = &lio_target_make_nodeacl; 1860 fabric->tf_ops.fabric_drop_nodeacl = &lio_target_drop_nodeacl; 1861 /* 1862 * Setup default attribute lists for various fabric->tf_cit_tmpl 1863 * sturct config_item_type's 1864 */ 1865 TF_CIT_TMPL(fabric)->tfc_discovery_cit.ct_attrs = lio_target_discovery_auth_attrs; 1866 TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = lio_target_wwn_attrs; 1867 TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = lio_target_tpg_attrs; 1868 TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = lio_target_tpg_attrib_attrs; 1869 TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = lio_target_tpg_param_attrs; 1870 TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = lio_target_portal_attrs; 1871 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = lio_target_initiator_attrs; 1872 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = lio_target_nacl_attrib_attrs; 1873 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = lio_target_nacl_auth_attrs; 1874 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = lio_target_nacl_param_attrs; 1875 1876 ret = target_fabric_configfs_register(fabric); 1877 if (ret < 0) { 1878 pr_err("target_fabric_configfs_register() for" 1879 " LIO-Target failed!\n"); 1880 target_fabric_configfs_free(fabric); 1881 return ret; 1882 } 1883 1884 lio_target_fabric_configfs = fabric; 1885 pr_debug("LIO_TARGET[0] - Set fabric ->" 1886 " lio_target_fabric_configfs\n"); 1887 return 0; 1888 } 1889 1890 1891 void iscsi_target_deregister_configfs(void) 1892 { 1893 if (!lio_target_fabric_configfs) 1894 return; 1895 /* 1896 * Shutdown discovery sessions and disable discovery TPG 1897 */ 1898 if (iscsit_global->discovery_tpg) 1899 iscsit_tpg_disable_portal_group(iscsit_global->discovery_tpg, 1); 1900 1901 target_fabric_configfs_deregister(lio_target_fabric_configfs); 1902 lio_target_fabric_configfs = NULL; 1903 pr_debug("LIO_TARGET[0] - Cleared" 1904 " lio_target_fabric_configfs\n"); 1905 } 1906