1 /******************************************************************************* 2 * This file contains the configfs implementation for iSCSI Target mode 3 * from the LIO-Target Project. 4 * 5 * (c) Copyright 2007-2013 Datera, Inc. 6 * 7 * Author: Nicholas A. Bellinger <nab@linux-iscsi.org> 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 ****************************************************************************/ 19 20 #include <linux/configfs.h> 21 #include <linux/ctype.h> 22 #include <linux/export.h> 23 #include <linux/inet.h> 24 #include <target/target_core_base.h> 25 #include <target/target_core_fabric.h> 26 #include <target/target_core_fabric_configfs.h> 27 #include <target/target_core_configfs.h> 28 #include <target/configfs_macros.h> 29 #include <target/iscsi/iscsi_transport.h> 30 31 #include "iscsi_target_core.h" 32 #include "iscsi_target_parameters.h" 33 #include "iscsi_target_device.h" 34 #include "iscsi_target_erl0.h" 35 #include "iscsi_target_nodeattrib.h" 36 #include "iscsi_target_tpg.h" 37 #include "iscsi_target_util.h" 38 #include "iscsi_target.h" 39 #include "iscsi_target_stat.h" 40 #include "iscsi_target_configfs.h" 41 42 struct target_fabric_configfs *lio_target_fabric_configfs; 43 44 struct lio_target_configfs_attribute { 45 struct configfs_attribute attr; 46 ssize_t (*show)(void *, char *); 47 ssize_t (*store)(void *, const char *, size_t); 48 }; 49 50 /* Start items for lio_target_portal_cit */ 51 52 static ssize_t lio_target_np_show_sctp( 53 struct se_tpg_np *se_tpg_np, 54 char *page) 55 { 56 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, 57 struct iscsi_tpg_np, se_tpg_np); 58 struct iscsi_tpg_np *tpg_np_sctp; 59 ssize_t rb; 60 61 tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP); 62 if (tpg_np_sctp) 63 rb = sprintf(page, "1\n"); 64 else 65 rb = sprintf(page, "0\n"); 66 67 return rb; 68 } 69 70 static ssize_t lio_target_np_store_sctp( 71 struct se_tpg_np *se_tpg_np, 72 const char *page, 73 size_t count) 74 { 75 struct iscsi_np *np; 76 struct iscsi_portal_group *tpg; 77 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, 78 struct iscsi_tpg_np, se_tpg_np); 79 struct iscsi_tpg_np *tpg_np_sctp = NULL; 80 u32 op; 81 int ret; 82 83 ret = kstrtou32(page, 0, &op); 84 if (ret) 85 return ret; 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 = kstrtoul(port_str, 0, &port); 267 if (ret < 0) { 268 pr_err("kstrtoul() 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 = kstrtoul(port_str, 0, &port); 292 if (ret < 0) { 293 pr_err("kstrtoul() 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 u32 val; \ 386 int ret; \ 387 \ 388 ret = kstrtou32(page, 0, &val); \ 389 if (ret) \ 390 return ret; \ 391 ret = iscsit_na_##name(nacl, val); \ 392 if (ret < 0) \ 393 return ret; \ 394 \ 395 return count; \ 396 } 397 398 #define NACL_ATTR(_name, _mode) TF_NACL_ATTRIB_ATTR(iscsi, _name, _mode); 399 /* 400 * Define iscsi_node_attrib_s_dataout_timeout 401 */ 402 DEF_NACL_ATTRIB(dataout_timeout); 403 NACL_ATTR(dataout_timeout, S_IRUGO | S_IWUSR); 404 /* 405 * Define iscsi_node_attrib_s_dataout_timeout_retries 406 */ 407 DEF_NACL_ATTRIB(dataout_timeout_retries); 408 NACL_ATTR(dataout_timeout_retries, S_IRUGO | S_IWUSR); 409 /* 410 * Define iscsi_node_attrib_s_default_erl 411 */ 412 DEF_NACL_ATTRIB(default_erl); 413 NACL_ATTR(default_erl, S_IRUGO | S_IWUSR); 414 /* 415 * Define iscsi_node_attrib_s_nopin_timeout 416 */ 417 DEF_NACL_ATTRIB(nopin_timeout); 418 NACL_ATTR(nopin_timeout, S_IRUGO | S_IWUSR); 419 /* 420 * Define iscsi_node_attrib_s_nopin_response_timeout 421 */ 422 DEF_NACL_ATTRIB(nopin_response_timeout); 423 NACL_ATTR(nopin_response_timeout, S_IRUGO | S_IWUSR); 424 /* 425 * Define iscsi_node_attrib_s_random_datain_pdu_offsets 426 */ 427 DEF_NACL_ATTRIB(random_datain_pdu_offsets); 428 NACL_ATTR(random_datain_pdu_offsets, S_IRUGO | S_IWUSR); 429 /* 430 * Define iscsi_node_attrib_s_random_datain_seq_offsets 431 */ 432 DEF_NACL_ATTRIB(random_datain_seq_offsets); 433 NACL_ATTR(random_datain_seq_offsets, S_IRUGO | S_IWUSR); 434 /* 435 * Define iscsi_node_attrib_s_random_r2t_offsets 436 */ 437 DEF_NACL_ATTRIB(random_r2t_offsets); 438 NACL_ATTR(random_r2t_offsets, S_IRUGO | S_IWUSR); 439 440 static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = { 441 &iscsi_nacl_attrib_dataout_timeout.attr, 442 &iscsi_nacl_attrib_dataout_timeout_retries.attr, 443 &iscsi_nacl_attrib_default_erl.attr, 444 &iscsi_nacl_attrib_nopin_timeout.attr, 445 &iscsi_nacl_attrib_nopin_response_timeout.attr, 446 &iscsi_nacl_attrib_random_datain_pdu_offsets.attr, 447 &iscsi_nacl_attrib_random_datain_seq_offsets.attr, 448 &iscsi_nacl_attrib_random_r2t_offsets.attr, 449 NULL, 450 }; 451 452 /* End items for lio_target_nacl_attrib_cit */ 453 454 /* Start items for lio_target_nacl_auth_cit */ 455 456 #define __DEF_NACL_AUTH_STR(prefix, name, flags) \ 457 static ssize_t __iscsi_##prefix##_show_##name( \ 458 struct iscsi_node_acl *nacl, \ 459 char *page) \ 460 { \ 461 struct iscsi_node_auth *auth = &nacl->node_auth; \ 462 \ 463 if (!capable(CAP_SYS_ADMIN)) \ 464 return -EPERM; \ 465 return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \ 466 } \ 467 \ 468 static ssize_t __iscsi_##prefix##_store_##name( \ 469 struct iscsi_node_acl *nacl, \ 470 const char *page, \ 471 size_t count) \ 472 { \ 473 struct iscsi_node_auth *auth = &nacl->node_auth; \ 474 \ 475 if (!capable(CAP_SYS_ADMIN)) \ 476 return -EPERM; \ 477 \ 478 snprintf(auth->name, sizeof(auth->name), "%s", page); \ 479 if (!strncmp("NULL", auth->name, 4)) \ 480 auth->naf_flags &= ~flags; \ 481 else \ 482 auth->naf_flags |= flags; \ 483 \ 484 if ((auth->naf_flags & NAF_USERID_IN_SET) && \ 485 (auth->naf_flags & NAF_PASSWORD_IN_SET)) \ 486 auth->authenticate_target = 1; \ 487 else \ 488 auth->authenticate_target = 0; \ 489 \ 490 return count; \ 491 } 492 493 #define __DEF_NACL_AUTH_INT(prefix, name) \ 494 static ssize_t __iscsi_##prefix##_show_##name( \ 495 struct iscsi_node_acl *nacl, \ 496 char *page) \ 497 { \ 498 struct iscsi_node_auth *auth = &nacl->node_auth; \ 499 \ 500 if (!capable(CAP_SYS_ADMIN)) \ 501 return -EPERM; \ 502 \ 503 return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \ 504 } 505 506 #define DEF_NACL_AUTH_STR(name, flags) \ 507 __DEF_NACL_AUTH_STR(nacl_auth, name, flags) \ 508 static ssize_t iscsi_nacl_auth_show_##name( \ 509 struct se_node_acl *nacl, \ 510 char *page) \ 511 { \ 512 return __iscsi_nacl_auth_show_##name(container_of(nacl, \ 513 struct iscsi_node_acl, se_node_acl), page); \ 514 } \ 515 static ssize_t iscsi_nacl_auth_store_##name( \ 516 struct se_node_acl *nacl, \ 517 const char *page, \ 518 size_t count) \ 519 { \ 520 return __iscsi_nacl_auth_store_##name(container_of(nacl, \ 521 struct iscsi_node_acl, se_node_acl), page, count); \ 522 } 523 524 #define DEF_NACL_AUTH_INT(name) \ 525 __DEF_NACL_AUTH_INT(nacl_auth, name) \ 526 static ssize_t iscsi_nacl_auth_show_##name( \ 527 struct se_node_acl *nacl, \ 528 char *page) \ 529 { \ 530 return __iscsi_nacl_auth_show_##name(container_of(nacl, \ 531 struct iscsi_node_acl, se_node_acl), page); \ 532 } 533 534 #define AUTH_ATTR(_name, _mode) TF_NACL_AUTH_ATTR(iscsi, _name, _mode); 535 #define AUTH_ATTR_RO(_name) TF_NACL_AUTH_ATTR_RO(iscsi, _name); 536 537 /* 538 * One-way authentication userid 539 */ 540 DEF_NACL_AUTH_STR(userid, NAF_USERID_SET); 541 AUTH_ATTR(userid, S_IRUGO | S_IWUSR); 542 /* 543 * One-way authentication password 544 */ 545 DEF_NACL_AUTH_STR(password, NAF_PASSWORD_SET); 546 AUTH_ATTR(password, S_IRUGO | S_IWUSR); 547 /* 548 * Enforce mutual authentication 549 */ 550 DEF_NACL_AUTH_INT(authenticate_target); 551 AUTH_ATTR_RO(authenticate_target); 552 /* 553 * Mutual authentication userid 554 */ 555 DEF_NACL_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); 556 AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR); 557 /* 558 * Mutual authentication password 559 */ 560 DEF_NACL_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); 561 AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR); 562 563 static struct configfs_attribute *lio_target_nacl_auth_attrs[] = { 564 &iscsi_nacl_auth_userid.attr, 565 &iscsi_nacl_auth_password.attr, 566 &iscsi_nacl_auth_authenticate_target.attr, 567 &iscsi_nacl_auth_userid_mutual.attr, 568 &iscsi_nacl_auth_password_mutual.attr, 569 NULL, 570 }; 571 572 /* End items for lio_target_nacl_auth_cit */ 573 574 /* Start items for lio_target_nacl_param_cit */ 575 576 #define DEF_NACL_PARAM(name) \ 577 static ssize_t iscsi_nacl_param_show_##name( \ 578 struct se_node_acl *se_nacl, \ 579 char *page) \ 580 { \ 581 struct iscsi_session *sess; \ 582 struct se_session *se_sess; \ 583 ssize_t rb; \ 584 \ 585 spin_lock_bh(&se_nacl->nacl_sess_lock); \ 586 se_sess = se_nacl->nacl_sess; \ 587 if (!se_sess) { \ 588 rb = snprintf(page, PAGE_SIZE, \ 589 "No Active iSCSI Session\n"); \ 590 } else { \ 591 sess = se_sess->fabric_sess_ptr; \ 592 rb = snprintf(page, PAGE_SIZE, "%u\n", \ 593 (u32)sess->sess_ops->name); \ 594 } \ 595 spin_unlock_bh(&se_nacl->nacl_sess_lock); \ 596 \ 597 return rb; \ 598 } 599 600 #define NACL_PARAM_ATTR(_name) TF_NACL_PARAM_ATTR_RO(iscsi, _name); 601 602 DEF_NACL_PARAM(MaxConnections); 603 NACL_PARAM_ATTR(MaxConnections); 604 605 DEF_NACL_PARAM(InitialR2T); 606 NACL_PARAM_ATTR(InitialR2T); 607 608 DEF_NACL_PARAM(ImmediateData); 609 NACL_PARAM_ATTR(ImmediateData); 610 611 DEF_NACL_PARAM(MaxBurstLength); 612 NACL_PARAM_ATTR(MaxBurstLength); 613 614 DEF_NACL_PARAM(FirstBurstLength); 615 NACL_PARAM_ATTR(FirstBurstLength); 616 617 DEF_NACL_PARAM(DefaultTime2Wait); 618 NACL_PARAM_ATTR(DefaultTime2Wait); 619 620 DEF_NACL_PARAM(DefaultTime2Retain); 621 NACL_PARAM_ATTR(DefaultTime2Retain); 622 623 DEF_NACL_PARAM(MaxOutstandingR2T); 624 NACL_PARAM_ATTR(MaxOutstandingR2T); 625 626 DEF_NACL_PARAM(DataPDUInOrder); 627 NACL_PARAM_ATTR(DataPDUInOrder); 628 629 DEF_NACL_PARAM(DataSequenceInOrder); 630 NACL_PARAM_ATTR(DataSequenceInOrder); 631 632 DEF_NACL_PARAM(ErrorRecoveryLevel); 633 NACL_PARAM_ATTR(ErrorRecoveryLevel); 634 635 static struct configfs_attribute *lio_target_nacl_param_attrs[] = { 636 &iscsi_nacl_param_MaxConnections.attr, 637 &iscsi_nacl_param_InitialR2T.attr, 638 &iscsi_nacl_param_ImmediateData.attr, 639 &iscsi_nacl_param_MaxBurstLength.attr, 640 &iscsi_nacl_param_FirstBurstLength.attr, 641 &iscsi_nacl_param_DefaultTime2Wait.attr, 642 &iscsi_nacl_param_DefaultTime2Retain.attr, 643 &iscsi_nacl_param_MaxOutstandingR2T.attr, 644 &iscsi_nacl_param_DataPDUInOrder.attr, 645 &iscsi_nacl_param_DataSequenceInOrder.attr, 646 &iscsi_nacl_param_ErrorRecoveryLevel.attr, 647 NULL, 648 }; 649 650 /* End items for lio_target_nacl_param_cit */ 651 652 /* Start items for lio_target_acl_cit */ 653 654 static ssize_t lio_target_nacl_show_info( 655 struct se_node_acl *se_nacl, 656 char *page) 657 { 658 struct iscsi_session *sess; 659 struct iscsi_conn *conn; 660 struct se_session *se_sess; 661 ssize_t rb = 0; 662 663 spin_lock_bh(&se_nacl->nacl_sess_lock); 664 se_sess = se_nacl->nacl_sess; 665 if (!se_sess) { 666 rb += sprintf(page+rb, "No active iSCSI Session for Initiator" 667 " Endpoint: %s\n", se_nacl->initiatorname); 668 } else { 669 sess = se_sess->fabric_sess_ptr; 670 671 if (sess->sess_ops->InitiatorName) 672 rb += sprintf(page+rb, "InitiatorName: %s\n", 673 sess->sess_ops->InitiatorName); 674 if (sess->sess_ops->InitiatorAlias) 675 rb += sprintf(page+rb, "InitiatorAlias: %s\n", 676 sess->sess_ops->InitiatorAlias); 677 678 rb += sprintf(page+rb, "LIO Session ID: %u " 679 "ISID: 0x%02x %02x %02x %02x %02x %02x " 680 "TSIH: %hu ", sess->sid, 681 sess->isid[0], sess->isid[1], sess->isid[2], 682 sess->isid[3], sess->isid[4], sess->isid[5], 683 sess->tsih); 684 rb += sprintf(page+rb, "SessionType: %s\n", 685 (sess->sess_ops->SessionType) ? 686 "Discovery" : "Normal"); 687 rb += sprintf(page+rb, "Session State: "); 688 switch (sess->session_state) { 689 case TARG_SESS_STATE_FREE: 690 rb += sprintf(page+rb, "TARG_SESS_FREE\n"); 691 break; 692 case TARG_SESS_STATE_ACTIVE: 693 rb += sprintf(page+rb, "TARG_SESS_STATE_ACTIVE\n"); 694 break; 695 case TARG_SESS_STATE_LOGGED_IN: 696 rb += sprintf(page+rb, "TARG_SESS_STATE_LOGGED_IN\n"); 697 break; 698 case TARG_SESS_STATE_FAILED: 699 rb += sprintf(page+rb, "TARG_SESS_STATE_FAILED\n"); 700 break; 701 case TARG_SESS_STATE_IN_CONTINUE: 702 rb += sprintf(page+rb, "TARG_SESS_STATE_IN_CONTINUE\n"); 703 break; 704 default: 705 rb += sprintf(page+rb, "ERROR: Unknown Session" 706 " State!\n"); 707 break; 708 } 709 710 rb += sprintf(page+rb, "---------------------[iSCSI Session" 711 " Values]-----------------------\n"); 712 rb += sprintf(page+rb, " CmdSN/WR : CmdSN/WC : ExpCmdSN" 713 " : MaxCmdSN : ITT : TTT\n"); 714 rb += sprintf(page+rb, " 0x%08x 0x%08x 0x%08x 0x%08x" 715 " 0x%08x 0x%08x\n", 716 sess->cmdsn_window, 717 (sess->max_cmd_sn - sess->exp_cmd_sn) + 1, 718 sess->exp_cmd_sn, sess->max_cmd_sn, 719 sess->init_task_tag, sess->targ_xfer_tag); 720 rb += sprintf(page+rb, "----------------------[iSCSI" 721 " Connections]-------------------------\n"); 722 723 spin_lock(&sess->conn_lock); 724 list_for_each_entry(conn, &sess->sess_conn_list, conn_list) { 725 rb += sprintf(page+rb, "CID: %hu Connection" 726 " State: ", conn->cid); 727 switch (conn->conn_state) { 728 case TARG_CONN_STATE_FREE: 729 rb += sprintf(page+rb, 730 "TARG_CONN_STATE_FREE\n"); 731 break; 732 case TARG_CONN_STATE_XPT_UP: 733 rb += sprintf(page+rb, 734 "TARG_CONN_STATE_XPT_UP\n"); 735 break; 736 case TARG_CONN_STATE_IN_LOGIN: 737 rb += sprintf(page+rb, 738 "TARG_CONN_STATE_IN_LOGIN\n"); 739 break; 740 case TARG_CONN_STATE_LOGGED_IN: 741 rb += sprintf(page+rb, 742 "TARG_CONN_STATE_LOGGED_IN\n"); 743 break; 744 case TARG_CONN_STATE_IN_LOGOUT: 745 rb += sprintf(page+rb, 746 "TARG_CONN_STATE_IN_LOGOUT\n"); 747 break; 748 case TARG_CONN_STATE_LOGOUT_REQUESTED: 749 rb += sprintf(page+rb, 750 "TARG_CONN_STATE_LOGOUT_REQUESTED\n"); 751 break; 752 case TARG_CONN_STATE_CLEANUP_WAIT: 753 rb += sprintf(page+rb, 754 "TARG_CONN_STATE_CLEANUP_WAIT\n"); 755 break; 756 default: 757 rb += sprintf(page+rb, 758 "ERROR: Unknown Connection State!\n"); 759 break; 760 } 761 762 rb += sprintf(page+rb, " Address %s %s", conn->login_ip, 763 (conn->network_transport == ISCSI_TCP) ? 764 "TCP" : "SCTP"); 765 rb += sprintf(page+rb, " StatSN: 0x%08x\n", 766 conn->stat_sn); 767 } 768 spin_unlock(&sess->conn_lock); 769 } 770 spin_unlock_bh(&se_nacl->nacl_sess_lock); 771 772 return rb; 773 } 774 775 TF_NACL_BASE_ATTR_RO(lio_target, info); 776 777 static ssize_t lio_target_nacl_show_cmdsn_depth( 778 struct se_node_acl *se_nacl, 779 char *page) 780 { 781 return sprintf(page, "%u\n", se_nacl->queue_depth); 782 } 783 784 static ssize_t lio_target_nacl_store_cmdsn_depth( 785 struct se_node_acl *se_nacl, 786 const char *page, 787 size_t count) 788 { 789 struct se_portal_group *se_tpg = se_nacl->se_tpg; 790 struct iscsi_portal_group *tpg = container_of(se_tpg, 791 struct iscsi_portal_group, tpg_se_tpg); 792 struct config_item *acl_ci, *tpg_ci, *wwn_ci; 793 u32 cmdsn_depth = 0; 794 int ret; 795 796 ret = kstrtou32(page, 0, &cmdsn_depth); 797 if (ret) 798 return ret; 799 if (cmdsn_depth > TA_DEFAULT_CMDSN_DEPTH_MAX) { 800 pr_err("Passed cmdsn_depth: %u exceeds" 801 " TA_DEFAULT_CMDSN_DEPTH_MAX: %u\n", cmdsn_depth, 802 TA_DEFAULT_CMDSN_DEPTH_MAX); 803 return -EINVAL; 804 } 805 acl_ci = &se_nacl->acl_group.cg_item; 806 if (!acl_ci) { 807 pr_err("Unable to locatel acl_ci\n"); 808 return -EINVAL; 809 } 810 tpg_ci = &acl_ci->ci_parent->ci_group->cg_item; 811 if (!tpg_ci) { 812 pr_err("Unable to locate tpg_ci\n"); 813 return -EINVAL; 814 } 815 wwn_ci = &tpg_ci->ci_group->cg_item; 816 if (!wwn_ci) { 817 pr_err("Unable to locate config_item wwn_ci\n"); 818 return -EINVAL; 819 } 820 821 if (iscsit_get_tpg(tpg) < 0) 822 return -EINVAL; 823 /* 824 * iscsit_tpg_set_initiator_node_queue_depth() assumes force=1 825 */ 826 ret = iscsit_tpg_set_initiator_node_queue_depth(tpg, 827 config_item_name(acl_ci), cmdsn_depth, 1); 828 829 pr_debug("LIO_Target_ConfigFS: %s/%s Set CmdSN Window: %u for" 830 "InitiatorName: %s\n", config_item_name(wwn_ci), 831 config_item_name(tpg_ci), cmdsn_depth, 832 config_item_name(acl_ci)); 833 834 iscsit_put_tpg(tpg); 835 return (!ret) ? count : (ssize_t)ret; 836 } 837 838 TF_NACL_BASE_ATTR(lio_target, cmdsn_depth, S_IRUGO | S_IWUSR); 839 840 static ssize_t lio_target_nacl_show_tag( 841 struct se_node_acl *se_nacl, 842 char *page) 843 { 844 return snprintf(page, PAGE_SIZE, "%s", se_nacl->acl_tag); 845 } 846 847 static ssize_t lio_target_nacl_store_tag( 848 struct se_node_acl *se_nacl, 849 const char *page, 850 size_t count) 851 { 852 int ret; 853 854 ret = core_tpg_set_initiator_node_tag(se_nacl->se_tpg, se_nacl, page); 855 856 if (ret < 0) 857 return ret; 858 return count; 859 } 860 861 TF_NACL_BASE_ATTR(lio_target, tag, S_IRUGO | S_IWUSR); 862 863 static struct configfs_attribute *lio_target_initiator_attrs[] = { 864 &lio_target_nacl_info.attr, 865 &lio_target_nacl_cmdsn_depth.attr, 866 &lio_target_nacl_tag.attr, 867 NULL, 868 }; 869 870 static struct se_node_acl *lio_tpg_alloc_fabric_acl( 871 struct se_portal_group *se_tpg) 872 { 873 struct iscsi_node_acl *acl; 874 875 acl = kzalloc(sizeof(struct iscsi_node_acl), GFP_KERNEL); 876 if (!acl) { 877 pr_err("Unable to allocate memory for struct iscsi_node_acl\n"); 878 return NULL; 879 } 880 881 return &acl->se_node_acl; 882 } 883 884 static struct se_node_acl *lio_target_make_nodeacl( 885 struct se_portal_group *se_tpg, 886 struct config_group *group, 887 const char *name) 888 { 889 struct config_group *stats_cg; 890 struct iscsi_node_acl *acl; 891 struct se_node_acl *se_nacl_new, *se_nacl; 892 struct iscsi_portal_group *tpg = container_of(se_tpg, 893 struct iscsi_portal_group, tpg_se_tpg); 894 u32 cmdsn_depth; 895 896 se_nacl_new = lio_tpg_alloc_fabric_acl(se_tpg); 897 if (!se_nacl_new) 898 return ERR_PTR(-ENOMEM); 899 900 cmdsn_depth = ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth; 901 /* 902 * se_nacl_new may be released by core_tpg_add_initiator_node_acl() 903 * when converting a NdoeACL from demo mode -> explict 904 */ 905 se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new, 906 name, cmdsn_depth); 907 if (IS_ERR(se_nacl)) 908 return se_nacl; 909 910 acl = container_of(se_nacl, struct iscsi_node_acl, se_node_acl); 911 stats_cg = &se_nacl->acl_fabric_stat_group; 912 913 stats_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, 914 GFP_KERNEL); 915 if (!stats_cg->default_groups) { 916 pr_err("Unable to allocate memory for" 917 " stats_cg->default_groups\n"); 918 core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1); 919 kfree(acl); 920 return ERR_PTR(-ENOMEM); 921 } 922 923 stats_cg->default_groups[0] = &NODE_STAT_GRPS(acl)->iscsi_sess_stats_group; 924 stats_cg->default_groups[1] = NULL; 925 config_group_init_type_name(&NODE_STAT_GRPS(acl)->iscsi_sess_stats_group, 926 "iscsi_sess_stats", &iscsi_stat_sess_cit); 927 928 return se_nacl; 929 } 930 931 static void lio_target_drop_nodeacl( 932 struct se_node_acl *se_nacl) 933 { 934 struct se_portal_group *se_tpg = se_nacl->se_tpg; 935 struct iscsi_node_acl *acl = container_of(se_nacl, 936 struct iscsi_node_acl, se_node_acl); 937 struct config_item *df_item; 938 struct config_group *stats_cg; 939 int i; 940 941 stats_cg = &acl->se_node_acl.acl_fabric_stat_group; 942 for (i = 0; stats_cg->default_groups[i]; i++) { 943 df_item = &stats_cg->default_groups[i]->cg_item; 944 stats_cg->default_groups[i] = NULL; 945 config_item_put(df_item); 946 } 947 kfree(stats_cg->default_groups); 948 949 core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1); 950 kfree(acl); 951 } 952 953 /* End items for lio_target_acl_cit */ 954 955 /* Start items for lio_target_tpg_attrib_cit */ 956 957 #define DEF_TPG_ATTRIB(name) \ 958 \ 959 static ssize_t iscsi_tpg_attrib_show_##name( \ 960 struct se_portal_group *se_tpg, \ 961 char *page) \ 962 { \ 963 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 964 struct iscsi_portal_group, tpg_se_tpg); \ 965 ssize_t rb; \ 966 \ 967 if (iscsit_get_tpg(tpg) < 0) \ 968 return -EINVAL; \ 969 \ 970 rb = sprintf(page, "%u\n", ISCSI_TPG_ATTRIB(tpg)->name); \ 971 iscsit_put_tpg(tpg); \ 972 return rb; \ 973 } \ 974 \ 975 static ssize_t iscsi_tpg_attrib_store_##name( \ 976 struct se_portal_group *se_tpg, \ 977 const char *page, \ 978 size_t count) \ 979 { \ 980 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 981 struct iscsi_portal_group, tpg_se_tpg); \ 982 u32 val; \ 983 int ret; \ 984 \ 985 if (iscsit_get_tpg(tpg) < 0) \ 986 return -EINVAL; \ 987 \ 988 ret = kstrtou32(page, 0, &val); \ 989 if (ret) \ 990 goto out; \ 991 ret = iscsit_ta_##name(tpg, val); \ 992 if (ret < 0) \ 993 goto out; \ 994 \ 995 iscsit_put_tpg(tpg); \ 996 return count; \ 997 out: \ 998 iscsit_put_tpg(tpg); \ 999 return ret; \ 1000 } 1001 1002 #define TPG_ATTR(_name, _mode) TF_TPG_ATTRIB_ATTR(iscsi, _name, _mode); 1003 1004 /* 1005 * Define iscsi_tpg_attrib_s_authentication 1006 */ 1007 DEF_TPG_ATTRIB(authentication); 1008 TPG_ATTR(authentication, S_IRUGO | S_IWUSR); 1009 /* 1010 * Define iscsi_tpg_attrib_s_login_timeout 1011 */ 1012 DEF_TPG_ATTRIB(login_timeout); 1013 TPG_ATTR(login_timeout, S_IRUGO | S_IWUSR); 1014 /* 1015 * Define iscsi_tpg_attrib_s_netif_timeout 1016 */ 1017 DEF_TPG_ATTRIB(netif_timeout); 1018 TPG_ATTR(netif_timeout, S_IRUGO | S_IWUSR); 1019 /* 1020 * Define iscsi_tpg_attrib_s_generate_node_acls 1021 */ 1022 DEF_TPG_ATTRIB(generate_node_acls); 1023 TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR); 1024 /* 1025 * Define iscsi_tpg_attrib_s_default_cmdsn_depth 1026 */ 1027 DEF_TPG_ATTRIB(default_cmdsn_depth); 1028 TPG_ATTR(default_cmdsn_depth, S_IRUGO | S_IWUSR); 1029 /* 1030 Define iscsi_tpg_attrib_s_cache_dynamic_acls 1031 */ 1032 DEF_TPG_ATTRIB(cache_dynamic_acls); 1033 TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR); 1034 /* 1035 * Define iscsi_tpg_attrib_s_demo_mode_write_protect 1036 */ 1037 DEF_TPG_ATTRIB(demo_mode_write_protect); 1038 TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR); 1039 /* 1040 * Define iscsi_tpg_attrib_s_prod_mode_write_protect 1041 */ 1042 DEF_TPG_ATTRIB(prod_mode_write_protect); 1043 TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR); 1044 1045 static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = { 1046 &iscsi_tpg_attrib_authentication.attr, 1047 &iscsi_tpg_attrib_login_timeout.attr, 1048 &iscsi_tpg_attrib_netif_timeout.attr, 1049 &iscsi_tpg_attrib_generate_node_acls.attr, 1050 &iscsi_tpg_attrib_default_cmdsn_depth.attr, 1051 &iscsi_tpg_attrib_cache_dynamic_acls.attr, 1052 &iscsi_tpg_attrib_demo_mode_write_protect.attr, 1053 &iscsi_tpg_attrib_prod_mode_write_protect.attr, 1054 NULL, 1055 }; 1056 1057 /* End items for lio_target_tpg_attrib_cit */ 1058 1059 /* Start items for lio_target_tpg_auth_cit */ 1060 1061 #define __DEF_TPG_AUTH_STR(prefix, name, flags) \ 1062 static ssize_t __iscsi_##prefix##_show_##name( \ 1063 struct se_portal_group *se_tpg, \ 1064 char *page) \ 1065 { \ 1066 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 1067 struct iscsi_portal_group, tpg_se_tpg); \ 1068 struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \ 1069 \ 1070 if (!capable(CAP_SYS_ADMIN)) \ 1071 return -EPERM; \ 1072 \ 1073 return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \ 1074 } \ 1075 \ 1076 static ssize_t __iscsi_##prefix##_store_##name( \ 1077 struct se_portal_group *se_tpg, \ 1078 const char *page, \ 1079 size_t count) \ 1080 { \ 1081 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 1082 struct iscsi_portal_group, tpg_se_tpg); \ 1083 struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \ 1084 \ 1085 if (!capable(CAP_SYS_ADMIN)) \ 1086 return -EPERM; \ 1087 \ 1088 snprintf(auth->name, sizeof(auth->name), "%s", page); \ 1089 if (!(strncmp("NULL", auth->name, 4))) \ 1090 auth->naf_flags &= ~flags; \ 1091 else \ 1092 auth->naf_flags |= flags; \ 1093 \ 1094 if ((auth->naf_flags & NAF_USERID_IN_SET) && \ 1095 (auth->naf_flags & NAF_PASSWORD_IN_SET)) \ 1096 auth->authenticate_target = 1; \ 1097 else \ 1098 auth->authenticate_target = 0; \ 1099 \ 1100 return count; \ 1101 } 1102 1103 #define __DEF_TPG_AUTH_INT(prefix, name) \ 1104 static ssize_t __iscsi_##prefix##_show_##name( \ 1105 struct se_portal_group *se_tpg, \ 1106 char *page) \ 1107 { \ 1108 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 1109 struct iscsi_portal_group, tpg_se_tpg); \ 1110 struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \ 1111 \ 1112 if (!capable(CAP_SYS_ADMIN)) \ 1113 return -EPERM; \ 1114 \ 1115 return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \ 1116 } 1117 1118 #define DEF_TPG_AUTH_STR(name, flags) \ 1119 __DEF_TPG_AUTH_STR(tpg_auth, name, flags) \ 1120 static ssize_t iscsi_tpg_auth_show_##name( \ 1121 struct se_portal_group *se_tpg, \ 1122 char *page) \ 1123 { \ 1124 return __iscsi_tpg_auth_show_##name(se_tpg, page); \ 1125 } \ 1126 \ 1127 static ssize_t iscsi_tpg_auth_store_##name( \ 1128 struct se_portal_group *se_tpg, \ 1129 const char *page, \ 1130 size_t count) \ 1131 { \ 1132 return __iscsi_tpg_auth_store_##name(se_tpg, page, count); \ 1133 } 1134 1135 #define DEF_TPG_AUTH_INT(name) \ 1136 __DEF_TPG_AUTH_INT(tpg_auth, name) \ 1137 static ssize_t iscsi_tpg_auth_show_##name( \ 1138 struct se_portal_group *se_tpg, \ 1139 char *page) \ 1140 { \ 1141 return __iscsi_tpg_auth_show_##name(se_tpg, page); \ 1142 } 1143 1144 #define TPG_AUTH_ATTR(_name, _mode) TF_TPG_AUTH_ATTR(iscsi, _name, _mode); 1145 #define TPG_AUTH_ATTR_RO(_name) TF_TPG_AUTH_ATTR_RO(iscsi, _name); 1146 1147 /* 1148 * * One-way authentication userid 1149 * */ 1150 DEF_TPG_AUTH_STR(userid, NAF_USERID_SET); 1151 TPG_AUTH_ATTR(userid, S_IRUGO | S_IWUSR); 1152 /* 1153 * * One-way authentication password 1154 * */ 1155 DEF_TPG_AUTH_STR(password, NAF_PASSWORD_SET); 1156 TPG_AUTH_ATTR(password, S_IRUGO | S_IWUSR); 1157 /* 1158 * * Enforce mutual authentication 1159 * */ 1160 DEF_TPG_AUTH_INT(authenticate_target); 1161 TPG_AUTH_ATTR_RO(authenticate_target); 1162 /* 1163 * * Mutual authentication userid 1164 * */ 1165 DEF_TPG_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); 1166 TPG_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR); 1167 /* 1168 * * Mutual authentication password 1169 * */ 1170 DEF_TPG_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); 1171 TPG_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR); 1172 1173 static struct configfs_attribute *lio_target_tpg_auth_attrs[] = { 1174 &iscsi_tpg_auth_userid.attr, 1175 &iscsi_tpg_auth_password.attr, 1176 &iscsi_tpg_auth_authenticate_target.attr, 1177 &iscsi_tpg_auth_userid_mutual.attr, 1178 &iscsi_tpg_auth_password_mutual.attr, 1179 NULL, 1180 }; 1181 1182 /* End items for lio_target_tpg_auth_cit */ 1183 1184 /* Start items for lio_target_tpg_param_cit */ 1185 1186 #define DEF_TPG_PARAM(name) \ 1187 static ssize_t iscsi_tpg_param_show_##name( \ 1188 struct se_portal_group *se_tpg, \ 1189 char *page) \ 1190 { \ 1191 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 1192 struct iscsi_portal_group, tpg_se_tpg); \ 1193 struct iscsi_param *param; \ 1194 ssize_t rb; \ 1195 \ 1196 if (iscsit_get_tpg(tpg) < 0) \ 1197 return -EINVAL; \ 1198 \ 1199 param = iscsi_find_param_from_key(__stringify(name), \ 1200 tpg->param_list); \ 1201 if (!param) { \ 1202 iscsit_put_tpg(tpg); \ 1203 return -EINVAL; \ 1204 } \ 1205 rb = snprintf(page, PAGE_SIZE, "%s\n", param->value); \ 1206 \ 1207 iscsit_put_tpg(tpg); \ 1208 return rb; \ 1209 } \ 1210 static ssize_t iscsi_tpg_param_store_##name( \ 1211 struct se_portal_group *se_tpg, \ 1212 const char *page, \ 1213 size_t count) \ 1214 { \ 1215 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 1216 struct iscsi_portal_group, tpg_se_tpg); \ 1217 char *buf; \ 1218 int ret, len; \ 1219 \ 1220 buf = kzalloc(PAGE_SIZE, GFP_KERNEL); \ 1221 if (!buf) \ 1222 return -ENOMEM; \ 1223 len = snprintf(buf, PAGE_SIZE, "%s=%s", __stringify(name), page); \ 1224 if (isspace(buf[len-1])) \ 1225 buf[len-1] = '\0'; /* Kill newline */ \ 1226 \ 1227 if (iscsit_get_tpg(tpg) < 0) { \ 1228 kfree(buf); \ 1229 return -EINVAL; \ 1230 } \ 1231 \ 1232 ret = iscsi_change_param_value(buf, tpg->param_list, 1); \ 1233 if (ret < 0) \ 1234 goto out; \ 1235 \ 1236 kfree(buf); \ 1237 iscsit_put_tpg(tpg); \ 1238 return count; \ 1239 out: \ 1240 kfree(buf); \ 1241 iscsit_put_tpg(tpg); \ 1242 return -EINVAL; \ 1243 } 1244 1245 #define TPG_PARAM_ATTR(_name, _mode) TF_TPG_PARAM_ATTR(iscsi, _name, _mode); 1246 1247 DEF_TPG_PARAM(AuthMethod); 1248 TPG_PARAM_ATTR(AuthMethod, S_IRUGO | S_IWUSR); 1249 1250 DEF_TPG_PARAM(HeaderDigest); 1251 TPG_PARAM_ATTR(HeaderDigest, S_IRUGO | S_IWUSR); 1252 1253 DEF_TPG_PARAM(DataDigest); 1254 TPG_PARAM_ATTR(DataDigest, S_IRUGO | S_IWUSR); 1255 1256 DEF_TPG_PARAM(MaxConnections); 1257 TPG_PARAM_ATTR(MaxConnections, S_IRUGO | S_IWUSR); 1258 1259 DEF_TPG_PARAM(TargetAlias); 1260 TPG_PARAM_ATTR(TargetAlias, S_IRUGO | S_IWUSR); 1261 1262 DEF_TPG_PARAM(InitialR2T); 1263 TPG_PARAM_ATTR(InitialR2T, S_IRUGO | S_IWUSR); 1264 1265 DEF_TPG_PARAM(ImmediateData); 1266 TPG_PARAM_ATTR(ImmediateData, S_IRUGO | S_IWUSR); 1267 1268 DEF_TPG_PARAM(MaxRecvDataSegmentLength); 1269 TPG_PARAM_ATTR(MaxRecvDataSegmentLength, S_IRUGO | S_IWUSR); 1270 1271 DEF_TPG_PARAM(MaxXmitDataSegmentLength); 1272 TPG_PARAM_ATTR(MaxXmitDataSegmentLength, S_IRUGO | S_IWUSR); 1273 1274 DEF_TPG_PARAM(MaxBurstLength); 1275 TPG_PARAM_ATTR(MaxBurstLength, S_IRUGO | S_IWUSR); 1276 1277 DEF_TPG_PARAM(FirstBurstLength); 1278 TPG_PARAM_ATTR(FirstBurstLength, S_IRUGO | S_IWUSR); 1279 1280 DEF_TPG_PARAM(DefaultTime2Wait); 1281 TPG_PARAM_ATTR(DefaultTime2Wait, S_IRUGO | S_IWUSR); 1282 1283 DEF_TPG_PARAM(DefaultTime2Retain); 1284 TPG_PARAM_ATTR(DefaultTime2Retain, S_IRUGO | S_IWUSR); 1285 1286 DEF_TPG_PARAM(MaxOutstandingR2T); 1287 TPG_PARAM_ATTR(MaxOutstandingR2T, S_IRUGO | S_IWUSR); 1288 1289 DEF_TPG_PARAM(DataPDUInOrder); 1290 TPG_PARAM_ATTR(DataPDUInOrder, S_IRUGO | S_IWUSR); 1291 1292 DEF_TPG_PARAM(DataSequenceInOrder); 1293 TPG_PARAM_ATTR(DataSequenceInOrder, S_IRUGO | S_IWUSR); 1294 1295 DEF_TPG_PARAM(ErrorRecoveryLevel); 1296 TPG_PARAM_ATTR(ErrorRecoveryLevel, S_IRUGO | S_IWUSR); 1297 1298 DEF_TPG_PARAM(IFMarker); 1299 TPG_PARAM_ATTR(IFMarker, S_IRUGO | S_IWUSR); 1300 1301 DEF_TPG_PARAM(OFMarker); 1302 TPG_PARAM_ATTR(OFMarker, S_IRUGO | S_IWUSR); 1303 1304 DEF_TPG_PARAM(IFMarkInt); 1305 TPG_PARAM_ATTR(IFMarkInt, S_IRUGO | S_IWUSR); 1306 1307 DEF_TPG_PARAM(OFMarkInt); 1308 TPG_PARAM_ATTR(OFMarkInt, S_IRUGO | S_IWUSR); 1309 1310 static struct configfs_attribute *lio_target_tpg_param_attrs[] = { 1311 &iscsi_tpg_param_AuthMethod.attr, 1312 &iscsi_tpg_param_HeaderDigest.attr, 1313 &iscsi_tpg_param_DataDigest.attr, 1314 &iscsi_tpg_param_MaxConnections.attr, 1315 &iscsi_tpg_param_TargetAlias.attr, 1316 &iscsi_tpg_param_InitialR2T.attr, 1317 &iscsi_tpg_param_ImmediateData.attr, 1318 &iscsi_tpg_param_MaxRecvDataSegmentLength.attr, 1319 &iscsi_tpg_param_MaxXmitDataSegmentLength.attr, 1320 &iscsi_tpg_param_MaxBurstLength.attr, 1321 &iscsi_tpg_param_FirstBurstLength.attr, 1322 &iscsi_tpg_param_DefaultTime2Wait.attr, 1323 &iscsi_tpg_param_DefaultTime2Retain.attr, 1324 &iscsi_tpg_param_MaxOutstandingR2T.attr, 1325 &iscsi_tpg_param_DataPDUInOrder.attr, 1326 &iscsi_tpg_param_DataSequenceInOrder.attr, 1327 &iscsi_tpg_param_ErrorRecoveryLevel.attr, 1328 &iscsi_tpg_param_IFMarker.attr, 1329 &iscsi_tpg_param_OFMarker.attr, 1330 &iscsi_tpg_param_IFMarkInt.attr, 1331 &iscsi_tpg_param_OFMarkInt.attr, 1332 NULL, 1333 }; 1334 1335 /* End items for lio_target_tpg_param_cit */ 1336 1337 /* Start items for lio_target_tpg_cit */ 1338 1339 static ssize_t lio_target_tpg_show_enable( 1340 struct se_portal_group *se_tpg, 1341 char *page) 1342 { 1343 struct iscsi_portal_group *tpg = container_of(se_tpg, 1344 struct iscsi_portal_group, tpg_se_tpg); 1345 ssize_t len; 1346 1347 spin_lock(&tpg->tpg_state_lock); 1348 len = sprintf(page, "%d\n", 1349 (tpg->tpg_state == TPG_STATE_ACTIVE) ? 1 : 0); 1350 spin_unlock(&tpg->tpg_state_lock); 1351 1352 return len; 1353 } 1354 1355 static ssize_t lio_target_tpg_store_enable( 1356 struct se_portal_group *se_tpg, 1357 const char *page, 1358 size_t count) 1359 { 1360 struct iscsi_portal_group *tpg = container_of(se_tpg, 1361 struct iscsi_portal_group, tpg_se_tpg); 1362 u32 op; 1363 int ret; 1364 1365 ret = kstrtou32(page, 0, &op); 1366 if (ret) 1367 return ret; 1368 if ((op != 1) && (op != 0)) { 1369 pr_err("Illegal value for tpg_enable: %u\n", op); 1370 return -EINVAL; 1371 } 1372 1373 ret = iscsit_get_tpg(tpg); 1374 if (ret < 0) 1375 return -EINVAL; 1376 1377 if (op) { 1378 ret = iscsit_tpg_enable_portal_group(tpg); 1379 if (ret < 0) 1380 goto out; 1381 } else { 1382 /* 1383 * iscsit_tpg_disable_portal_group() assumes force=1 1384 */ 1385 ret = iscsit_tpg_disable_portal_group(tpg, 1); 1386 if (ret < 0) 1387 goto out; 1388 } 1389 1390 iscsit_put_tpg(tpg); 1391 return count; 1392 out: 1393 iscsit_put_tpg(tpg); 1394 return -EINVAL; 1395 } 1396 1397 TF_TPG_BASE_ATTR(lio_target, enable, S_IRUGO | S_IWUSR); 1398 1399 static struct configfs_attribute *lio_target_tpg_attrs[] = { 1400 &lio_target_tpg_enable.attr, 1401 NULL, 1402 }; 1403 1404 /* End items for lio_target_tpg_cit */ 1405 1406 /* Start items for lio_target_tiqn_cit */ 1407 1408 static struct se_portal_group *lio_target_tiqn_addtpg( 1409 struct se_wwn *wwn, 1410 struct config_group *group, 1411 const char *name) 1412 { 1413 struct iscsi_portal_group *tpg; 1414 struct iscsi_tiqn *tiqn; 1415 char *tpgt_str; 1416 int ret; 1417 u16 tpgt; 1418 1419 tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn); 1420 /* 1421 * Only tpgt_# directory groups can be created below 1422 * target/iscsi/iqn.superturodiskarry/ 1423 */ 1424 tpgt_str = strstr(name, "tpgt_"); 1425 if (!tpgt_str) { 1426 pr_err("Unable to locate \"tpgt_#\" directory" 1427 " group\n"); 1428 return NULL; 1429 } 1430 tpgt_str += 5; /* Skip ahead of "tpgt_" */ 1431 ret = kstrtou16(tpgt_str, 0, &tpgt); 1432 if (ret) 1433 return NULL; 1434 1435 tpg = iscsit_alloc_portal_group(tiqn, tpgt); 1436 if (!tpg) 1437 return NULL; 1438 1439 ret = core_tpg_register( 1440 &lio_target_fabric_configfs->tf_ops, 1441 wwn, &tpg->tpg_se_tpg, tpg, 1442 TRANSPORT_TPG_TYPE_NORMAL); 1443 if (ret < 0) 1444 return NULL; 1445 1446 ret = iscsit_tpg_add_portal_group(tiqn, tpg); 1447 if (ret != 0) 1448 goto out; 1449 1450 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn); 1451 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated TPG: %s\n", 1452 name); 1453 return &tpg->tpg_se_tpg; 1454 out: 1455 core_tpg_deregister(&tpg->tpg_se_tpg); 1456 kfree(tpg); 1457 return NULL; 1458 } 1459 1460 static void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg) 1461 { 1462 struct iscsi_portal_group *tpg; 1463 struct iscsi_tiqn *tiqn; 1464 1465 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); 1466 tiqn = tpg->tpg_tiqn; 1467 /* 1468 * iscsit_tpg_del_portal_group() assumes force=1 1469 */ 1470 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> Releasing TPG\n"); 1471 iscsit_tpg_del_portal_group(tiqn, tpg, 1); 1472 } 1473 1474 /* End items for lio_target_tiqn_cit */ 1475 1476 /* Start LIO-Target TIQN struct contig_item lio_target_cit */ 1477 1478 static ssize_t lio_target_wwn_show_attr_lio_version( 1479 struct target_fabric_configfs *tf, 1480 char *page) 1481 { 1482 return sprintf(page, "Datera Inc. iSCSI Target "ISCSIT_VERSION"\n"); 1483 } 1484 1485 TF_WWN_ATTR_RO(lio_target, lio_version); 1486 1487 static struct configfs_attribute *lio_target_wwn_attrs[] = { 1488 &lio_target_wwn_lio_version.attr, 1489 NULL, 1490 }; 1491 1492 static struct se_wwn *lio_target_call_coreaddtiqn( 1493 struct target_fabric_configfs *tf, 1494 struct config_group *group, 1495 const char *name) 1496 { 1497 struct config_group *stats_cg; 1498 struct iscsi_tiqn *tiqn; 1499 1500 tiqn = iscsit_add_tiqn((unsigned char *)name); 1501 if (IS_ERR(tiqn)) 1502 return ERR_CAST(tiqn); 1503 /* 1504 * Setup struct iscsi_wwn_stat_grps for se_wwn->fabric_stat_group. 1505 */ 1506 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group; 1507 1508 stats_cg->default_groups = kmalloc(sizeof(struct config_group *) * 6, 1509 GFP_KERNEL); 1510 if (!stats_cg->default_groups) { 1511 pr_err("Unable to allocate memory for" 1512 " stats_cg->default_groups\n"); 1513 iscsit_del_tiqn(tiqn); 1514 return ERR_PTR(-ENOMEM); 1515 } 1516 1517 stats_cg->default_groups[0] = &WWN_STAT_GRPS(tiqn)->iscsi_instance_group; 1518 stats_cg->default_groups[1] = &WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group; 1519 stats_cg->default_groups[2] = &WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group; 1520 stats_cg->default_groups[3] = &WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group; 1521 stats_cg->default_groups[4] = &WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group; 1522 stats_cg->default_groups[5] = NULL; 1523 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_instance_group, 1524 "iscsi_instance", &iscsi_stat_instance_cit); 1525 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group, 1526 "iscsi_sess_err", &iscsi_stat_sess_err_cit); 1527 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group, 1528 "iscsi_tgt_attr", &iscsi_stat_tgt_attr_cit); 1529 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group, 1530 "iscsi_login_stats", &iscsi_stat_login_cit); 1531 config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group, 1532 "iscsi_logout_stats", &iscsi_stat_logout_cit); 1533 1534 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn); 1535 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated Node:" 1536 " %s\n", name); 1537 return &tiqn->tiqn_wwn; 1538 } 1539 1540 static void lio_target_call_coredeltiqn( 1541 struct se_wwn *wwn) 1542 { 1543 struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn); 1544 struct config_item *df_item; 1545 struct config_group *stats_cg; 1546 int i; 1547 1548 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group; 1549 for (i = 0; stats_cg->default_groups[i]; i++) { 1550 df_item = &stats_cg->default_groups[i]->cg_item; 1551 stats_cg->default_groups[i] = NULL; 1552 config_item_put(df_item); 1553 } 1554 kfree(stats_cg->default_groups); 1555 1556 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s\n", 1557 tiqn->tiqn); 1558 iscsit_del_tiqn(tiqn); 1559 } 1560 1561 /* End LIO-Target TIQN struct contig_lio_target_cit */ 1562 1563 /* Start lio_target_discovery_auth_cit */ 1564 1565 #define DEF_DISC_AUTH_STR(name, flags) \ 1566 __DEF_NACL_AUTH_STR(disc, name, flags) \ 1567 static ssize_t iscsi_disc_show_##name( \ 1568 struct target_fabric_configfs *tf, \ 1569 char *page) \ 1570 { \ 1571 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \ 1572 page); \ 1573 } \ 1574 static ssize_t iscsi_disc_store_##name( \ 1575 struct target_fabric_configfs *tf, \ 1576 const char *page, \ 1577 size_t count) \ 1578 { \ 1579 return __iscsi_disc_store_##name(&iscsit_global->discovery_acl, \ 1580 page, count); \ 1581 } 1582 1583 #define DEF_DISC_AUTH_INT(name) \ 1584 __DEF_NACL_AUTH_INT(disc, name) \ 1585 static ssize_t iscsi_disc_show_##name( \ 1586 struct target_fabric_configfs *tf, \ 1587 char *page) \ 1588 { \ 1589 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \ 1590 page); \ 1591 } 1592 1593 #define DISC_AUTH_ATTR(_name, _mode) TF_DISC_ATTR(iscsi, _name, _mode) 1594 #define DISC_AUTH_ATTR_RO(_name) TF_DISC_ATTR_RO(iscsi, _name) 1595 1596 /* 1597 * One-way authentication userid 1598 */ 1599 DEF_DISC_AUTH_STR(userid, NAF_USERID_SET); 1600 DISC_AUTH_ATTR(userid, S_IRUGO | S_IWUSR); 1601 /* 1602 * One-way authentication password 1603 */ 1604 DEF_DISC_AUTH_STR(password, NAF_PASSWORD_SET); 1605 DISC_AUTH_ATTR(password, S_IRUGO | S_IWUSR); 1606 /* 1607 * Enforce mutual authentication 1608 */ 1609 DEF_DISC_AUTH_INT(authenticate_target); 1610 DISC_AUTH_ATTR_RO(authenticate_target); 1611 /* 1612 * Mutual authentication userid 1613 */ 1614 DEF_DISC_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); 1615 DISC_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR); 1616 /* 1617 * Mutual authentication password 1618 */ 1619 DEF_DISC_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); 1620 DISC_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR); 1621 1622 /* 1623 * enforce_discovery_auth 1624 */ 1625 static ssize_t iscsi_disc_show_enforce_discovery_auth( 1626 struct target_fabric_configfs *tf, 1627 char *page) 1628 { 1629 struct iscsi_node_auth *discovery_auth = &iscsit_global->discovery_acl.node_auth; 1630 1631 return sprintf(page, "%d\n", discovery_auth->enforce_discovery_auth); 1632 } 1633 1634 static ssize_t iscsi_disc_store_enforce_discovery_auth( 1635 struct target_fabric_configfs *tf, 1636 const char *page, 1637 size_t count) 1638 { 1639 struct iscsi_param *param; 1640 struct iscsi_portal_group *discovery_tpg = iscsit_global->discovery_tpg; 1641 u32 op; 1642 int err; 1643 1644 err = kstrtou32(page, 0, &op); 1645 if (err) 1646 return -EINVAL; 1647 if ((op != 1) && (op != 0)) { 1648 pr_err("Illegal value for enforce_discovery_auth:" 1649 " %u\n", op); 1650 return -EINVAL; 1651 } 1652 1653 if (!discovery_tpg) { 1654 pr_err("iscsit_global->discovery_tpg is NULL\n"); 1655 return -EINVAL; 1656 } 1657 1658 param = iscsi_find_param_from_key(AUTHMETHOD, 1659 discovery_tpg->param_list); 1660 if (!param) 1661 return -EINVAL; 1662 1663 if (op) { 1664 /* 1665 * Reset the AuthMethod key to CHAP. 1666 */ 1667 if (iscsi_update_param_value(param, CHAP) < 0) 1668 return -EINVAL; 1669 1670 discovery_tpg->tpg_attrib.authentication = 1; 1671 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 1; 1672 pr_debug("LIO-CORE[0] Successfully enabled" 1673 " authentication enforcement for iSCSI" 1674 " Discovery TPG\n"); 1675 } else { 1676 /* 1677 * Reset the AuthMethod key to CHAP,None 1678 */ 1679 if (iscsi_update_param_value(param, "CHAP,None") < 0) 1680 return -EINVAL; 1681 1682 discovery_tpg->tpg_attrib.authentication = 0; 1683 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 0; 1684 pr_debug("LIO-CORE[0] Successfully disabled" 1685 " authentication enforcement for iSCSI" 1686 " Discovery TPG\n"); 1687 } 1688 1689 return count; 1690 } 1691 1692 DISC_AUTH_ATTR(enforce_discovery_auth, S_IRUGO | S_IWUSR); 1693 1694 static struct configfs_attribute *lio_target_discovery_auth_attrs[] = { 1695 &iscsi_disc_userid.attr, 1696 &iscsi_disc_password.attr, 1697 &iscsi_disc_authenticate_target.attr, 1698 &iscsi_disc_userid_mutual.attr, 1699 &iscsi_disc_password_mutual.attr, 1700 &iscsi_disc_enforce_discovery_auth.attr, 1701 NULL, 1702 }; 1703 1704 /* End lio_target_discovery_auth_cit */ 1705 1706 /* Start functions for target_core_fabric_ops */ 1707 1708 static char *iscsi_get_fabric_name(void) 1709 { 1710 return "iSCSI"; 1711 } 1712 1713 static u32 iscsi_get_task_tag(struct se_cmd *se_cmd) 1714 { 1715 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1716 1717 /* only used for printks or comparism with ->ref_task_tag */ 1718 return (__force u32)cmd->init_task_tag; 1719 } 1720 1721 static int iscsi_get_cmd_state(struct se_cmd *se_cmd) 1722 { 1723 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1724 1725 return cmd->i_state; 1726 } 1727 1728 static u32 lio_sess_get_index(struct se_session *se_sess) 1729 { 1730 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1731 1732 return sess->session_index; 1733 } 1734 1735 static u32 lio_sess_get_initiator_sid( 1736 struct se_session *se_sess, 1737 unsigned char *buf, 1738 u32 size) 1739 { 1740 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1741 /* 1742 * iSCSI Initiator Session Identifier from RFC-3720. 1743 */ 1744 return snprintf(buf, size, "%02x%02x%02x%02x%02x%02x", 1745 sess->isid[0], sess->isid[1], sess->isid[2], 1746 sess->isid[3], sess->isid[4], sess->isid[5]); 1747 } 1748 1749 static int lio_queue_data_in(struct se_cmd *se_cmd) 1750 { 1751 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1752 1753 cmd->i_state = ISTATE_SEND_DATAIN; 1754 cmd->conn->conn_transport->iscsit_queue_data_in(cmd->conn, cmd); 1755 1756 return 0; 1757 } 1758 1759 static int lio_write_pending(struct se_cmd *se_cmd) 1760 { 1761 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1762 struct iscsi_conn *conn = cmd->conn; 1763 1764 if (!cmd->immediate_data && !cmd->unsolicited_data) 1765 return conn->conn_transport->iscsit_get_dataout(conn, cmd, false); 1766 1767 return 0; 1768 } 1769 1770 static int lio_write_pending_status(struct se_cmd *se_cmd) 1771 { 1772 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1773 int ret; 1774 1775 spin_lock_bh(&cmd->istate_lock); 1776 ret = !(cmd->cmd_flags & ICF_GOT_LAST_DATAOUT); 1777 spin_unlock_bh(&cmd->istate_lock); 1778 1779 return ret; 1780 } 1781 1782 static int lio_queue_status(struct se_cmd *se_cmd) 1783 { 1784 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1785 1786 cmd->i_state = ISTATE_SEND_STATUS; 1787 cmd->conn->conn_transport->iscsit_queue_status(cmd->conn, cmd); 1788 1789 return 0; 1790 } 1791 1792 static void lio_queue_tm_rsp(struct se_cmd *se_cmd) 1793 { 1794 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1795 1796 cmd->i_state = ISTATE_SEND_TASKMGTRSP; 1797 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); 1798 } 1799 1800 static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg) 1801 { 1802 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1803 1804 return &tpg->tpg_tiqn->tiqn[0]; 1805 } 1806 1807 static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg) 1808 { 1809 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1810 1811 return tpg->tpgt; 1812 } 1813 1814 static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg) 1815 { 1816 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1817 1818 return ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth; 1819 } 1820 1821 static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg) 1822 { 1823 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1824 1825 return ISCSI_TPG_ATTRIB(tpg)->generate_node_acls; 1826 } 1827 1828 static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg) 1829 { 1830 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1831 1832 return ISCSI_TPG_ATTRIB(tpg)->cache_dynamic_acls; 1833 } 1834 1835 static int lio_tpg_check_demo_mode_write_protect( 1836 struct se_portal_group *se_tpg) 1837 { 1838 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1839 1840 return ISCSI_TPG_ATTRIB(tpg)->demo_mode_write_protect; 1841 } 1842 1843 static int lio_tpg_check_prod_mode_write_protect( 1844 struct se_portal_group *se_tpg) 1845 { 1846 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1847 1848 return ISCSI_TPG_ATTRIB(tpg)->prod_mode_write_protect; 1849 } 1850 1851 static void lio_tpg_release_fabric_acl( 1852 struct se_portal_group *se_tpg, 1853 struct se_node_acl *se_acl) 1854 { 1855 struct iscsi_node_acl *acl = container_of(se_acl, 1856 struct iscsi_node_acl, se_node_acl); 1857 kfree(acl); 1858 } 1859 1860 /* 1861 * Called with spin_lock_bh(struct se_portal_group->session_lock) held.. 1862 * 1863 * Also, this function calls iscsit_inc_session_usage_count() on the 1864 * struct iscsi_session in question. 1865 */ 1866 static int lio_tpg_shutdown_session(struct se_session *se_sess) 1867 { 1868 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1869 1870 spin_lock(&sess->conn_lock); 1871 if (atomic_read(&sess->session_fall_back_to_erl0) || 1872 atomic_read(&sess->session_logout) || 1873 (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) { 1874 spin_unlock(&sess->conn_lock); 1875 return 0; 1876 } 1877 atomic_set(&sess->session_reinstatement, 1); 1878 spin_unlock(&sess->conn_lock); 1879 1880 iscsit_stop_time2retain_timer(sess); 1881 iscsit_stop_session(sess, 1, 1); 1882 1883 return 1; 1884 } 1885 1886 /* 1887 * Calls iscsit_dec_session_usage_count() as inverse of 1888 * lio_tpg_shutdown_session() 1889 */ 1890 static void lio_tpg_close_session(struct se_session *se_sess) 1891 { 1892 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1893 /* 1894 * If the iSCSI Session for the iSCSI Initiator Node exists, 1895 * forcefully shutdown the iSCSI NEXUS. 1896 */ 1897 iscsit_close_session(sess); 1898 } 1899 1900 static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg) 1901 { 1902 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1903 1904 return tpg->tpg_tiqn->tiqn_index; 1905 } 1906 1907 static void lio_set_default_node_attributes(struct se_node_acl *se_acl) 1908 { 1909 struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl, 1910 se_node_acl); 1911 1912 ISCSI_NODE_ATTRIB(acl)->nacl = acl; 1913 iscsit_set_default_node_attribues(acl); 1914 } 1915 1916 static int lio_check_stop_free(struct se_cmd *se_cmd) 1917 { 1918 return target_put_sess_cmd(se_cmd->se_sess, se_cmd); 1919 } 1920 1921 static void lio_release_cmd(struct se_cmd *se_cmd) 1922 { 1923 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1924 1925 pr_debug("Entering lio_release_cmd for se_cmd: %p\n", se_cmd); 1926 iscsit_release_cmd(cmd); 1927 } 1928 1929 /* End functions for target_core_fabric_ops */ 1930 1931 int iscsi_target_register_configfs(void) 1932 { 1933 struct target_fabric_configfs *fabric; 1934 int ret; 1935 1936 lio_target_fabric_configfs = NULL; 1937 fabric = target_fabric_configfs_init(THIS_MODULE, "iscsi"); 1938 if (IS_ERR(fabric)) { 1939 pr_err("target_fabric_configfs_init() for" 1940 " LIO-Target failed!\n"); 1941 return PTR_ERR(fabric); 1942 } 1943 /* 1944 * Setup the fabric API of function pointers used by target_core_mod.. 1945 */ 1946 fabric->tf_ops.get_fabric_name = &iscsi_get_fabric_name; 1947 fabric->tf_ops.get_fabric_proto_ident = &iscsi_get_fabric_proto_ident; 1948 fabric->tf_ops.tpg_get_wwn = &lio_tpg_get_endpoint_wwn; 1949 fabric->tf_ops.tpg_get_tag = &lio_tpg_get_tag; 1950 fabric->tf_ops.tpg_get_default_depth = &lio_tpg_get_default_depth; 1951 fabric->tf_ops.tpg_get_pr_transport_id = &iscsi_get_pr_transport_id; 1952 fabric->tf_ops.tpg_get_pr_transport_id_len = 1953 &iscsi_get_pr_transport_id_len; 1954 fabric->tf_ops.tpg_parse_pr_out_transport_id = 1955 &iscsi_parse_pr_out_transport_id; 1956 fabric->tf_ops.tpg_check_demo_mode = &lio_tpg_check_demo_mode; 1957 fabric->tf_ops.tpg_check_demo_mode_cache = 1958 &lio_tpg_check_demo_mode_cache; 1959 fabric->tf_ops.tpg_check_demo_mode_write_protect = 1960 &lio_tpg_check_demo_mode_write_protect; 1961 fabric->tf_ops.tpg_check_prod_mode_write_protect = 1962 &lio_tpg_check_prod_mode_write_protect; 1963 fabric->tf_ops.tpg_alloc_fabric_acl = &lio_tpg_alloc_fabric_acl; 1964 fabric->tf_ops.tpg_release_fabric_acl = &lio_tpg_release_fabric_acl; 1965 fabric->tf_ops.tpg_get_inst_index = &lio_tpg_get_inst_index; 1966 fabric->tf_ops.check_stop_free = &lio_check_stop_free, 1967 fabric->tf_ops.release_cmd = &lio_release_cmd; 1968 fabric->tf_ops.shutdown_session = &lio_tpg_shutdown_session; 1969 fabric->tf_ops.close_session = &lio_tpg_close_session; 1970 fabric->tf_ops.sess_get_index = &lio_sess_get_index; 1971 fabric->tf_ops.sess_get_initiator_sid = &lio_sess_get_initiator_sid; 1972 fabric->tf_ops.write_pending = &lio_write_pending; 1973 fabric->tf_ops.write_pending_status = &lio_write_pending_status; 1974 fabric->tf_ops.set_default_node_attributes = 1975 &lio_set_default_node_attributes; 1976 fabric->tf_ops.get_task_tag = &iscsi_get_task_tag; 1977 fabric->tf_ops.get_cmd_state = &iscsi_get_cmd_state; 1978 fabric->tf_ops.queue_data_in = &lio_queue_data_in; 1979 fabric->tf_ops.queue_status = &lio_queue_status; 1980 fabric->tf_ops.queue_tm_rsp = &lio_queue_tm_rsp; 1981 /* 1982 * Setup function pointers for generic logic in target_core_fabric_configfs.c 1983 */ 1984 fabric->tf_ops.fabric_make_wwn = &lio_target_call_coreaddtiqn; 1985 fabric->tf_ops.fabric_drop_wwn = &lio_target_call_coredeltiqn; 1986 fabric->tf_ops.fabric_make_tpg = &lio_target_tiqn_addtpg; 1987 fabric->tf_ops.fabric_drop_tpg = &lio_target_tiqn_deltpg; 1988 fabric->tf_ops.fabric_post_link = NULL; 1989 fabric->tf_ops.fabric_pre_unlink = NULL; 1990 fabric->tf_ops.fabric_make_np = &lio_target_call_addnptotpg; 1991 fabric->tf_ops.fabric_drop_np = &lio_target_call_delnpfromtpg; 1992 fabric->tf_ops.fabric_make_nodeacl = &lio_target_make_nodeacl; 1993 fabric->tf_ops.fabric_drop_nodeacl = &lio_target_drop_nodeacl; 1994 /* 1995 * Setup default attribute lists for various fabric->tf_cit_tmpl 1996 * sturct config_item_type's 1997 */ 1998 TF_CIT_TMPL(fabric)->tfc_discovery_cit.ct_attrs = lio_target_discovery_auth_attrs; 1999 TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = lio_target_wwn_attrs; 2000 TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = lio_target_tpg_attrs; 2001 TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = lio_target_tpg_attrib_attrs; 2002 TF_CIT_TMPL(fabric)->tfc_tpg_auth_cit.ct_attrs = lio_target_tpg_auth_attrs; 2003 TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = lio_target_tpg_param_attrs; 2004 TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = lio_target_portal_attrs; 2005 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = lio_target_initiator_attrs; 2006 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = lio_target_nacl_attrib_attrs; 2007 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = lio_target_nacl_auth_attrs; 2008 TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = lio_target_nacl_param_attrs; 2009 2010 ret = target_fabric_configfs_register(fabric); 2011 if (ret < 0) { 2012 pr_err("target_fabric_configfs_register() for" 2013 " LIO-Target failed!\n"); 2014 target_fabric_configfs_free(fabric); 2015 return ret; 2016 } 2017 2018 lio_target_fabric_configfs = fabric; 2019 pr_debug("LIO_TARGET[0] - Set fabric ->" 2020 " lio_target_fabric_configfs\n"); 2021 return 0; 2022 } 2023 2024 2025 void iscsi_target_deregister_configfs(void) 2026 { 2027 if (!lio_target_fabric_configfs) 2028 return; 2029 /* 2030 * Shutdown discovery sessions and disable discovery TPG 2031 */ 2032 if (iscsit_global->discovery_tpg) 2033 iscsit_tpg_disable_portal_group(iscsit_global->discovery_tpg, 1); 2034 2035 target_fabric_configfs_deregister(lio_target_fabric_configfs); 2036 lio_target_fabric_configfs = NULL; 2037 pr_debug("LIO_TARGET[0] - Cleared" 2038 " lio_target_fabric_configfs\n"); 2039 } 2040