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 <target/iscsi/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 <target/iscsi/iscsi_target_stat.h> 40 41 struct lio_target_configfs_attribute { 42 struct configfs_attribute attr; 43 ssize_t (*show)(void *, char *); 44 ssize_t (*store)(void *, const char *, size_t); 45 }; 46 47 /* Start items for lio_target_portal_cit */ 48 49 static ssize_t lio_target_np_show_sctp( 50 struct se_tpg_np *se_tpg_np, 51 char *page) 52 { 53 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, 54 struct iscsi_tpg_np, se_tpg_np); 55 struct iscsi_tpg_np *tpg_np_sctp; 56 ssize_t rb; 57 58 tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP); 59 if (tpg_np_sctp) 60 rb = sprintf(page, "1\n"); 61 else 62 rb = sprintf(page, "0\n"); 63 64 return rb; 65 } 66 67 static ssize_t lio_target_np_store_sctp( 68 struct se_tpg_np *se_tpg_np, 69 const char *page, 70 size_t count) 71 { 72 struct iscsi_np *np; 73 struct iscsi_portal_group *tpg; 74 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, 75 struct iscsi_tpg_np, se_tpg_np); 76 struct iscsi_tpg_np *tpg_np_sctp = NULL; 77 u32 op; 78 int ret; 79 80 ret = kstrtou32(page, 0, &op); 81 if (ret) 82 return ret; 83 if ((op != 1) && (op != 0)) { 84 pr_err("Illegal value for tpg_enable: %u\n", op); 85 return -EINVAL; 86 } 87 np = tpg_np->tpg_np; 88 if (!np) { 89 pr_err("Unable to locate struct iscsi_np from" 90 " struct iscsi_tpg_np\n"); 91 return -EINVAL; 92 } 93 94 tpg = tpg_np->tpg; 95 if (iscsit_get_tpg(tpg) < 0) 96 return -EINVAL; 97 98 if (op) { 99 /* 100 * Use existing np->np_sockaddr for SCTP network portal reference 101 */ 102 tpg_np_sctp = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr, 103 np->np_ip, tpg_np, ISCSI_SCTP_TCP); 104 if (!tpg_np_sctp || IS_ERR(tpg_np_sctp)) 105 goto out; 106 } else { 107 tpg_np_sctp = iscsit_tpg_locate_child_np(tpg_np, ISCSI_SCTP_TCP); 108 if (!tpg_np_sctp) 109 goto out; 110 111 ret = iscsit_tpg_del_network_portal(tpg, tpg_np_sctp); 112 if (ret < 0) 113 goto out; 114 } 115 116 iscsit_put_tpg(tpg); 117 return count; 118 out: 119 iscsit_put_tpg(tpg); 120 return -EINVAL; 121 } 122 123 TF_NP_BASE_ATTR(lio_target, sctp, S_IRUGO | S_IWUSR); 124 125 static ssize_t lio_target_np_show_iser( 126 struct se_tpg_np *se_tpg_np, 127 char *page) 128 { 129 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, 130 struct iscsi_tpg_np, se_tpg_np); 131 struct iscsi_tpg_np *tpg_np_iser; 132 ssize_t rb; 133 134 tpg_np_iser = iscsit_tpg_locate_child_np(tpg_np, ISCSI_INFINIBAND); 135 if (tpg_np_iser) 136 rb = sprintf(page, "1\n"); 137 else 138 rb = sprintf(page, "0\n"); 139 140 return rb; 141 } 142 143 static ssize_t lio_target_np_store_iser( 144 struct se_tpg_np *se_tpg_np, 145 const char *page, 146 size_t count) 147 { 148 struct iscsi_np *np; 149 struct iscsi_portal_group *tpg; 150 struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, 151 struct iscsi_tpg_np, se_tpg_np); 152 struct iscsi_tpg_np *tpg_np_iser = NULL; 153 char *endptr; 154 u32 op; 155 int rc = 0; 156 157 op = simple_strtoul(page, &endptr, 0); 158 if ((op != 1) && (op != 0)) { 159 pr_err("Illegal value for tpg_enable: %u\n", op); 160 return -EINVAL; 161 } 162 np = tpg_np->tpg_np; 163 if (!np) { 164 pr_err("Unable to locate struct iscsi_np from" 165 " struct iscsi_tpg_np\n"); 166 return -EINVAL; 167 } 168 169 tpg = tpg_np->tpg; 170 if (iscsit_get_tpg(tpg) < 0) 171 return -EINVAL; 172 173 if (op) { 174 rc = request_module("ib_isert"); 175 if (rc != 0) { 176 pr_warn("Unable to request_module for ib_isert\n"); 177 rc = 0; 178 } 179 180 tpg_np_iser = iscsit_tpg_add_network_portal(tpg, &np->np_sockaddr, 181 np->np_ip, tpg_np, ISCSI_INFINIBAND); 182 if (IS_ERR(tpg_np_iser)) { 183 rc = PTR_ERR(tpg_np_iser); 184 goto out; 185 } 186 } else { 187 tpg_np_iser = iscsit_tpg_locate_child_np(tpg_np, ISCSI_INFINIBAND); 188 if (tpg_np_iser) { 189 rc = iscsit_tpg_del_network_portal(tpg, tpg_np_iser); 190 if (rc < 0) 191 goto out; 192 } 193 } 194 195 iscsit_put_tpg(tpg); 196 return count; 197 out: 198 iscsit_put_tpg(tpg); 199 return rc; 200 } 201 202 TF_NP_BASE_ATTR(lio_target, iser, S_IRUGO | S_IWUSR); 203 204 static struct configfs_attribute *lio_target_portal_attrs[] = { 205 &lio_target_np_sctp.attr, 206 &lio_target_np_iser.attr, 207 NULL, 208 }; 209 210 /* Stop items for lio_target_portal_cit */ 211 212 /* Start items for lio_target_np_cit */ 213 214 #define MAX_PORTAL_LEN 256 215 216 static struct se_tpg_np *lio_target_call_addnptotpg( 217 struct se_portal_group *se_tpg, 218 struct config_group *group, 219 const char *name) 220 { 221 struct iscsi_portal_group *tpg; 222 struct iscsi_tpg_np *tpg_np; 223 char *str, *str2, *ip_str, *port_str; 224 struct __kernel_sockaddr_storage sockaddr; 225 struct sockaddr_in *sock_in; 226 struct sockaddr_in6 *sock_in6; 227 unsigned long port; 228 int ret; 229 char buf[MAX_PORTAL_LEN + 1]; 230 231 if (strlen(name) > MAX_PORTAL_LEN) { 232 pr_err("strlen(name): %d exceeds MAX_PORTAL_LEN: %d\n", 233 (int)strlen(name), MAX_PORTAL_LEN); 234 return ERR_PTR(-EOVERFLOW); 235 } 236 memset(buf, 0, MAX_PORTAL_LEN + 1); 237 snprintf(buf, MAX_PORTAL_LEN + 1, "%s", name); 238 239 memset(&sockaddr, 0, sizeof(struct __kernel_sockaddr_storage)); 240 241 str = strstr(buf, "["); 242 if (str) { 243 const char *end; 244 245 str2 = strstr(str, "]"); 246 if (!str2) { 247 pr_err("Unable to locate trailing \"]\"" 248 " in IPv6 iSCSI network portal address\n"); 249 return ERR_PTR(-EINVAL); 250 } 251 str++; /* Skip over leading "[" */ 252 *str2 = '\0'; /* Terminate the IPv6 address */ 253 str2++; /* Skip over the "]" */ 254 port_str = strstr(str2, ":"); 255 if (!port_str) { 256 pr_err("Unable to locate \":port\"" 257 " in IPv6 iSCSI network portal address\n"); 258 return ERR_PTR(-EINVAL); 259 } 260 *port_str = '\0'; /* Terminate string for IP */ 261 port_str++; /* Skip over ":" */ 262 263 ret = kstrtoul(port_str, 0, &port); 264 if (ret < 0) { 265 pr_err("kstrtoul() failed for port_str: %d\n", ret); 266 return ERR_PTR(ret); 267 } 268 sock_in6 = (struct sockaddr_in6 *)&sockaddr; 269 sock_in6->sin6_family = AF_INET6; 270 sock_in6->sin6_port = htons((unsigned short)port); 271 ret = in6_pton(str, IPV6_ADDRESS_SPACE, 272 (void *)&sock_in6->sin6_addr.in6_u, -1, &end); 273 if (ret <= 0) { 274 pr_err("in6_pton returned: %d\n", ret); 275 return ERR_PTR(-EINVAL); 276 } 277 } else { 278 str = ip_str = &buf[0]; 279 port_str = strstr(ip_str, ":"); 280 if (!port_str) { 281 pr_err("Unable to locate \":port\"" 282 " in IPv4 iSCSI network portal address\n"); 283 return ERR_PTR(-EINVAL); 284 } 285 *port_str = '\0'; /* Terminate string for IP */ 286 port_str++; /* Skip over ":" */ 287 288 ret = kstrtoul(port_str, 0, &port); 289 if (ret < 0) { 290 pr_err("kstrtoul() failed for port_str: %d\n", ret); 291 return ERR_PTR(ret); 292 } 293 sock_in = (struct sockaddr_in *)&sockaddr; 294 sock_in->sin_family = AF_INET; 295 sock_in->sin_port = htons((unsigned short)port); 296 sock_in->sin_addr.s_addr = in_aton(ip_str); 297 } 298 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); 299 ret = iscsit_get_tpg(tpg); 300 if (ret < 0) 301 return ERR_PTR(-EINVAL); 302 303 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s TPGT: %hu" 304 " PORTAL: %s\n", 305 config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item), 306 tpg->tpgt, name); 307 /* 308 * Assume ISCSI_TCP by default. Other network portals for other 309 * iSCSI fabrics: 310 * 311 * Traditional iSCSI over SCTP (initial support) 312 * iSER/TCP (TODO, hardware available) 313 * iSER/SCTP (TODO, software emulation with osc-iwarp) 314 * iSER/IB (TODO, hardware available) 315 * 316 * can be enabled with attributes under 317 * sys/kernel/config/iscsi/$IQN/$TPG/np/$IP:$PORT/ 318 * 319 */ 320 tpg_np = iscsit_tpg_add_network_portal(tpg, &sockaddr, str, NULL, 321 ISCSI_TCP); 322 if (IS_ERR(tpg_np)) { 323 iscsit_put_tpg(tpg); 324 return ERR_CAST(tpg_np); 325 } 326 pr_debug("LIO_Target_ConfigFS: addnptotpg done!\n"); 327 328 iscsit_put_tpg(tpg); 329 return &tpg_np->se_tpg_np; 330 } 331 332 static void lio_target_call_delnpfromtpg( 333 struct se_tpg_np *se_tpg_np) 334 { 335 struct iscsi_portal_group *tpg; 336 struct iscsi_tpg_np *tpg_np; 337 struct se_portal_group *se_tpg; 338 int ret; 339 340 tpg_np = container_of(se_tpg_np, struct iscsi_tpg_np, se_tpg_np); 341 tpg = tpg_np->tpg; 342 ret = iscsit_get_tpg(tpg); 343 if (ret < 0) 344 return; 345 346 se_tpg = &tpg->tpg_se_tpg; 347 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s TPGT: %hu" 348 " PORTAL: %s:%hu\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item), 349 tpg->tpgt, tpg_np->tpg_np->np_ip, tpg_np->tpg_np->np_port); 350 351 ret = iscsit_tpg_del_network_portal(tpg, tpg_np); 352 if (ret < 0) 353 goto out; 354 355 pr_debug("LIO_Target_ConfigFS: delnpfromtpg done!\n"); 356 out: 357 iscsit_put_tpg(tpg); 358 } 359 360 /* End items for lio_target_np_cit */ 361 362 /* Start items for lio_target_nacl_attrib_cit */ 363 364 #define DEF_NACL_ATTRIB(name) \ 365 static ssize_t iscsi_nacl_attrib_show_##name( \ 366 struct se_node_acl *se_nacl, \ 367 char *page) \ 368 { \ 369 struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \ 370 se_node_acl); \ 371 \ 372 return sprintf(page, "%u\n", nacl->node_attrib.name); \ 373 } \ 374 \ 375 static ssize_t iscsi_nacl_attrib_store_##name( \ 376 struct se_node_acl *se_nacl, \ 377 const char *page, \ 378 size_t count) \ 379 { \ 380 struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \ 381 se_node_acl); \ 382 u32 val; \ 383 int ret; \ 384 \ 385 ret = kstrtou32(page, 0, &val); \ 386 if (ret) \ 387 return ret; \ 388 ret = iscsit_na_##name(nacl, val); \ 389 if (ret < 0) \ 390 return ret; \ 391 \ 392 return count; \ 393 } 394 395 #define NACL_ATTR(_name, _mode) TF_NACL_ATTRIB_ATTR(iscsi, _name, _mode); 396 /* 397 * Define iscsi_node_attrib_s_dataout_timeout 398 */ 399 DEF_NACL_ATTRIB(dataout_timeout); 400 NACL_ATTR(dataout_timeout, S_IRUGO | S_IWUSR); 401 /* 402 * Define iscsi_node_attrib_s_dataout_timeout_retries 403 */ 404 DEF_NACL_ATTRIB(dataout_timeout_retries); 405 NACL_ATTR(dataout_timeout_retries, S_IRUGO | S_IWUSR); 406 /* 407 * Define iscsi_node_attrib_s_default_erl 408 */ 409 DEF_NACL_ATTRIB(default_erl); 410 NACL_ATTR(default_erl, S_IRUGO | S_IWUSR); 411 /* 412 * Define iscsi_node_attrib_s_nopin_timeout 413 */ 414 DEF_NACL_ATTRIB(nopin_timeout); 415 NACL_ATTR(nopin_timeout, S_IRUGO | S_IWUSR); 416 /* 417 * Define iscsi_node_attrib_s_nopin_response_timeout 418 */ 419 DEF_NACL_ATTRIB(nopin_response_timeout); 420 NACL_ATTR(nopin_response_timeout, S_IRUGO | S_IWUSR); 421 /* 422 * Define iscsi_node_attrib_s_random_datain_pdu_offsets 423 */ 424 DEF_NACL_ATTRIB(random_datain_pdu_offsets); 425 NACL_ATTR(random_datain_pdu_offsets, S_IRUGO | S_IWUSR); 426 /* 427 * Define iscsi_node_attrib_s_random_datain_seq_offsets 428 */ 429 DEF_NACL_ATTRIB(random_datain_seq_offsets); 430 NACL_ATTR(random_datain_seq_offsets, S_IRUGO | S_IWUSR); 431 /* 432 * Define iscsi_node_attrib_s_random_r2t_offsets 433 */ 434 DEF_NACL_ATTRIB(random_r2t_offsets); 435 NACL_ATTR(random_r2t_offsets, S_IRUGO | S_IWUSR); 436 437 static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = { 438 &iscsi_nacl_attrib_dataout_timeout.attr, 439 &iscsi_nacl_attrib_dataout_timeout_retries.attr, 440 &iscsi_nacl_attrib_default_erl.attr, 441 &iscsi_nacl_attrib_nopin_timeout.attr, 442 &iscsi_nacl_attrib_nopin_response_timeout.attr, 443 &iscsi_nacl_attrib_random_datain_pdu_offsets.attr, 444 &iscsi_nacl_attrib_random_datain_seq_offsets.attr, 445 &iscsi_nacl_attrib_random_r2t_offsets.attr, 446 NULL, 447 }; 448 449 /* End items for lio_target_nacl_attrib_cit */ 450 451 /* Start items for lio_target_nacl_auth_cit */ 452 453 #define __DEF_NACL_AUTH_STR(prefix, name, flags) \ 454 static ssize_t __iscsi_##prefix##_show_##name( \ 455 struct iscsi_node_acl *nacl, \ 456 char *page) \ 457 { \ 458 struct iscsi_node_auth *auth = &nacl->node_auth; \ 459 \ 460 if (!capable(CAP_SYS_ADMIN)) \ 461 return -EPERM; \ 462 return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \ 463 } \ 464 \ 465 static ssize_t __iscsi_##prefix##_store_##name( \ 466 struct iscsi_node_acl *nacl, \ 467 const char *page, \ 468 size_t count) \ 469 { \ 470 struct iscsi_node_auth *auth = &nacl->node_auth; \ 471 \ 472 if (!capable(CAP_SYS_ADMIN)) \ 473 return -EPERM; \ 474 if (count >= sizeof(auth->name)) \ 475 return -EINVAL; \ 476 snprintf(auth->name, sizeof(auth->name), "%s", page); \ 477 if (!strncmp("NULL", auth->name, 4)) \ 478 auth->naf_flags &= ~flags; \ 479 else \ 480 auth->naf_flags |= flags; \ 481 \ 482 if ((auth->naf_flags & NAF_USERID_IN_SET) && \ 483 (auth->naf_flags & NAF_PASSWORD_IN_SET)) \ 484 auth->authenticate_target = 1; \ 485 else \ 486 auth->authenticate_target = 0; \ 487 \ 488 return count; \ 489 } 490 491 #define __DEF_NACL_AUTH_INT(prefix, name) \ 492 static ssize_t __iscsi_##prefix##_show_##name( \ 493 struct iscsi_node_acl *nacl, \ 494 char *page) \ 495 { \ 496 struct iscsi_node_auth *auth = &nacl->node_auth; \ 497 \ 498 if (!capable(CAP_SYS_ADMIN)) \ 499 return -EPERM; \ 500 \ 501 return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \ 502 } 503 504 #define DEF_NACL_AUTH_STR(name, flags) \ 505 __DEF_NACL_AUTH_STR(nacl_auth, name, flags) \ 506 static ssize_t iscsi_nacl_auth_show_##name( \ 507 struct se_node_acl *nacl, \ 508 char *page) \ 509 { \ 510 return __iscsi_nacl_auth_show_##name(container_of(nacl, \ 511 struct iscsi_node_acl, se_node_acl), page); \ 512 } \ 513 static ssize_t iscsi_nacl_auth_store_##name( \ 514 struct se_node_acl *nacl, \ 515 const char *page, \ 516 size_t count) \ 517 { \ 518 return __iscsi_nacl_auth_store_##name(container_of(nacl, \ 519 struct iscsi_node_acl, se_node_acl), page, count); \ 520 } 521 522 #define DEF_NACL_AUTH_INT(name) \ 523 __DEF_NACL_AUTH_INT(nacl_auth, name) \ 524 static ssize_t iscsi_nacl_auth_show_##name( \ 525 struct se_node_acl *nacl, \ 526 char *page) \ 527 { \ 528 return __iscsi_nacl_auth_show_##name(container_of(nacl, \ 529 struct iscsi_node_acl, se_node_acl), page); \ 530 } 531 532 #define AUTH_ATTR(_name, _mode) TF_NACL_AUTH_ATTR(iscsi, _name, _mode); 533 #define AUTH_ATTR_RO(_name) TF_NACL_AUTH_ATTR_RO(iscsi, _name); 534 535 /* 536 * One-way authentication userid 537 */ 538 DEF_NACL_AUTH_STR(userid, NAF_USERID_SET); 539 AUTH_ATTR(userid, S_IRUGO | S_IWUSR); 540 /* 541 * One-way authentication password 542 */ 543 DEF_NACL_AUTH_STR(password, NAF_PASSWORD_SET); 544 AUTH_ATTR(password, S_IRUGO | S_IWUSR); 545 /* 546 * Enforce mutual authentication 547 */ 548 DEF_NACL_AUTH_INT(authenticate_target); 549 AUTH_ATTR_RO(authenticate_target); 550 /* 551 * Mutual authentication userid 552 */ 553 DEF_NACL_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); 554 AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR); 555 /* 556 * Mutual authentication password 557 */ 558 DEF_NACL_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); 559 AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR); 560 561 static struct configfs_attribute *lio_target_nacl_auth_attrs[] = { 562 &iscsi_nacl_auth_userid.attr, 563 &iscsi_nacl_auth_password.attr, 564 &iscsi_nacl_auth_authenticate_target.attr, 565 &iscsi_nacl_auth_userid_mutual.attr, 566 &iscsi_nacl_auth_password_mutual.attr, 567 NULL, 568 }; 569 570 /* End items for lio_target_nacl_auth_cit */ 571 572 /* Start items for lio_target_nacl_param_cit */ 573 574 #define DEF_NACL_PARAM(name) \ 575 static ssize_t iscsi_nacl_param_show_##name( \ 576 struct se_node_acl *se_nacl, \ 577 char *page) \ 578 { \ 579 struct iscsi_session *sess; \ 580 struct se_session *se_sess; \ 581 ssize_t rb; \ 582 \ 583 spin_lock_bh(&se_nacl->nacl_sess_lock); \ 584 se_sess = se_nacl->nacl_sess; \ 585 if (!se_sess) { \ 586 rb = snprintf(page, PAGE_SIZE, \ 587 "No Active iSCSI Session\n"); \ 588 } else { \ 589 sess = se_sess->fabric_sess_ptr; \ 590 rb = snprintf(page, PAGE_SIZE, "%u\n", \ 591 (u32)sess->sess_ops->name); \ 592 } \ 593 spin_unlock_bh(&se_nacl->nacl_sess_lock); \ 594 \ 595 return rb; \ 596 } 597 598 #define NACL_PARAM_ATTR(_name) TF_NACL_PARAM_ATTR_RO(iscsi, _name); 599 600 DEF_NACL_PARAM(MaxConnections); 601 NACL_PARAM_ATTR(MaxConnections); 602 603 DEF_NACL_PARAM(InitialR2T); 604 NACL_PARAM_ATTR(InitialR2T); 605 606 DEF_NACL_PARAM(ImmediateData); 607 NACL_PARAM_ATTR(ImmediateData); 608 609 DEF_NACL_PARAM(MaxBurstLength); 610 NACL_PARAM_ATTR(MaxBurstLength); 611 612 DEF_NACL_PARAM(FirstBurstLength); 613 NACL_PARAM_ATTR(FirstBurstLength); 614 615 DEF_NACL_PARAM(DefaultTime2Wait); 616 NACL_PARAM_ATTR(DefaultTime2Wait); 617 618 DEF_NACL_PARAM(DefaultTime2Retain); 619 NACL_PARAM_ATTR(DefaultTime2Retain); 620 621 DEF_NACL_PARAM(MaxOutstandingR2T); 622 NACL_PARAM_ATTR(MaxOutstandingR2T); 623 624 DEF_NACL_PARAM(DataPDUInOrder); 625 NACL_PARAM_ATTR(DataPDUInOrder); 626 627 DEF_NACL_PARAM(DataSequenceInOrder); 628 NACL_PARAM_ATTR(DataSequenceInOrder); 629 630 DEF_NACL_PARAM(ErrorRecoveryLevel); 631 NACL_PARAM_ATTR(ErrorRecoveryLevel); 632 633 static struct configfs_attribute *lio_target_nacl_param_attrs[] = { 634 &iscsi_nacl_param_MaxConnections.attr, 635 &iscsi_nacl_param_InitialR2T.attr, 636 &iscsi_nacl_param_ImmediateData.attr, 637 &iscsi_nacl_param_MaxBurstLength.attr, 638 &iscsi_nacl_param_FirstBurstLength.attr, 639 &iscsi_nacl_param_DefaultTime2Wait.attr, 640 &iscsi_nacl_param_DefaultTime2Retain.attr, 641 &iscsi_nacl_param_MaxOutstandingR2T.attr, 642 &iscsi_nacl_param_DataPDUInOrder.attr, 643 &iscsi_nacl_param_DataSequenceInOrder.attr, 644 &iscsi_nacl_param_ErrorRecoveryLevel.attr, 645 NULL, 646 }; 647 648 /* End items for lio_target_nacl_param_cit */ 649 650 /* Start items for lio_target_acl_cit */ 651 652 static ssize_t lio_target_nacl_show_info( 653 struct se_node_acl *se_nacl, 654 char *page) 655 { 656 struct iscsi_session *sess; 657 struct iscsi_conn *conn; 658 struct se_session *se_sess; 659 ssize_t rb = 0; 660 661 spin_lock_bh(&se_nacl->nacl_sess_lock); 662 se_sess = se_nacl->nacl_sess; 663 if (!se_sess) { 664 rb += sprintf(page+rb, "No active iSCSI Session for Initiator" 665 " Endpoint: %s\n", se_nacl->initiatorname); 666 } else { 667 sess = se_sess->fabric_sess_ptr; 668 669 rb += sprintf(page+rb, "InitiatorName: %s\n", 670 sess->sess_ops->InitiatorName); 671 rb += sprintf(page+rb, "InitiatorAlias: %s\n", 672 sess->sess_ops->InitiatorAlias); 673 674 rb += sprintf(page+rb, 675 "LIO Session ID: %u ISID: 0x%6ph TSIH: %hu ", 676 sess->sid, sess->isid, sess->tsih); 677 rb += sprintf(page+rb, "SessionType: %s\n", 678 (sess->sess_ops->SessionType) ? 679 "Discovery" : "Normal"); 680 rb += sprintf(page+rb, "Session State: "); 681 switch (sess->session_state) { 682 case TARG_SESS_STATE_FREE: 683 rb += sprintf(page+rb, "TARG_SESS_FREE\n"); 684 break; 685 case TARG_SESS_STATE_ACTIVE: 686 rb += sprintf(page+rb, "TARG_SESS_STATE_ACTIVE\n"); 687 break; 688 case TARG_SESS_STATE_LOGGED_IN: 689 rb += sprintf(page+rb, "TARG_SESS_STATE_LOGGED_IN\n"); 690 break; 691 case TARG_SESS_STATE_FAILED: 692 rb += sprintf(page+rb, "TARG_SESS_STATE_FAILED\n"); 693 break; 694 case TARG_SESS_STATE_IN_CONTINUE: 695 rb += sprintf(page+rb, "TARG_SESS_STATE_IN_CONTINUE\n"); 696 break; 697 default: 698 rb += sprintf(page+rb, "ERROR: Unknown Session" 699 " State!\n"); 700 break; 701 } 702 703 rb += sprintf(page+rb, "---------------------[iSCSI Session" 704 " Values]-----------------------\n"); 705 rb += sprintf(page+rb, " CmdSN/WR : CmdSN/WC : ExpCmdSN" 706 " : MaxCmdSN : ITT : TTT\n"); 707 rb += sprintf(page+rb, " 0x%08x 0x%08x 0x%08x 0x%08x" 708 " 0x%08x 0x%08x\n", 709 sess->cmdsn_window, 710 (sess->max_cmd_sn - sess->exp_cmd_sn) + 1, 711 sess->exp_cmd_sn, sess->max_cmd_sn, 712 sess->init_task_tag, sess->targ_xfer_tag); 713 rb += sprintf(page+rb, "----------------------[iSCSI" 714 " Connections]-------------------------\n"); 715 716 spin_lock(&sess->conn_lock); 717 list_for_each_entry(conn, &sess->sess_conn_list, conn_list) { 718 rb += sprintf(page+rb, "CID: %hu Connection" 719 " State: ", conn->cid); 720 switch (conn->conn_state) { 721 case TARG_CONN_STATE_FREE: 722 rb += sprintf(page+rb, 723 "TARG_CONN_STATE_FREE\n"); 724 break; 725 case TARG_CONN_STATE_XPT_UP: 726 rb += sprintf(page+rb, 727 "TARG_CONN_STATE_XPT_UP\n"); 728 break; 729 case TARG_CONN_STATE_IN_LOGIN: 730 rb += sprintf(page+rb, 731 "TARG_CONN_STATE_IN_LOGIN\n"); 732 break; 733 case TARG_CONN_STATE_LOGGED_IN: 734 rb += sprintf(page+rb, 735 "TARG_CONN_STATE_LOGGED_IN\n"); 736 break; 737 case TARG_CONN_STATE_IN_LOGOUT: 738 rb += sprintf(page+rb, 739 "TARG_CONN_STATE_IN_LOGOUT\n"); 740 break; 741 case TARG_CONN_STATE_LOGOUT_REQUESTED: 742 rb += sprintf(page+rb, 743 "TARG_CONN_STATE_LOGOUT_REQUESTED\n"); 744 break; 745 case TARG_CONN_STATE_CLEANUP_WAIT: 746 rb += sprintf(page+rb, 747 "TARG_CONN_STATE_CLEANUP_WAIT\n"); 748 break; 749 default: 750 rb += sprintf(page+rb, 751 "ERROR: Unknown Connection State!\n"); 752 break; 753 } 754 755 rb += sprintf(page+rb, " Address %s %s", conn->login_ip, 756 (conn->network_transport == ISCSI_TCP) ? 757 "TCP" : "SCTP"); 758 rb += sprintf(page+rb, " StatSN: 0x%08x\n", 759 conn->stat_sn); 760 } 761 spin_unlock(&sess->conn_lock); 762 } 763 spin_unlock_bh(&se_nacl->nacl_sess_lock); 764 765 return rb; 766 } 767 768 TF_NACL_BASE_ATTR_RO(lio_target, info); 769 770 static ssize_t lio_target_nacl_show_cmdsn_depth( 771 struct se_node_acl *se_nacl, 772 char *page) 773 { 774 return sprintf(page, "%u\n", se_nacl->queue_depth); 775 } 776 777 static ssize_t lio_target_nacl_store_cmdsn_depth( 778 struct se_node_acl *se_nacl, 779 const char *page, 780 size_t count) 781 { 782 struct se_portal_group *se_tpg = se_nacl->se_tpg; 783 struct iscsi_portal_group *tpg = container_of(se_tpg, 784 struct iscsi_portal_group, tpg_se_tpg); 785 struct config_item *acl_ci, *tpg_ci, *wwn_ci; 786 u32 cmdsn_depth = 0; 787 int ret; 788 789 ret = kstrtou32(page, 0, &cmdsn_depth); 790 if (ret) 791 return ret; 792 if (cmdsn_depth > TA_DEFAULT_CMDSN_DEPTH_MAX) { 793 pr_err("Passed cmdsn_depth: %u exceeds" 794 " TA_DEFAULT_CMDSN_DEPTH_MAX: %u\n", cmdsn_depth, 795 TA_DEFAULT_CMDSN_DEPTH_MAX); 796 return -EINVAL; 797 } 798 acl_ci = &se_nacl->acl_group.cg_item; 799 if (!acl_ci) { 800 pr_err("Unable to locatel acl_ci\n"); 801 return -EINVAL; 802 } 803 tpg_ci = &acl_ci->ci_parent->ci_group->cg_item; 804 if (!tpg_ci) { 805 pr_err("Unable to locate tpg_ci\n"); 806 return -EINVAL; 807 } 808 wwn_ci = &tpg_ci->ci_group->cg_item; 809 if (!wwn_ci) { 810 pr_err("Unable to locate config_item wwn_ci\n"); 811 return -EINVAL; 812 } 813 814 if (iscsit_get_tpg(tpg) < 0) 815 return -EINVAL; 816 /* 817 * iscsit_tpg_set_initiator_node_queue_depth() assumes force=1 818 */ 819 ret = iscsit_tpg_set_initiator_node_queue_depth(tpg, 820 config_item_name(acl_ci), cmdsn_depth, 1); 821 822 pr_debug("LIO_Target_ConfigFS: %s/%s Set CmdSN Window: %u for" 823 "InitiatorName: %s\n", config_item_name(wwn_ci), 824 config_item_name(tpg_ci), cmdsn_depth, 825 config_item_name(acl_ci)); 826 827 iscsit_put_tpg(tpg); 828 return (!ret) ? count : (ssize_t)ret; 829 } 830 831 TF_NACL_BASE_ATTR(lio_target, cmdsn_depth, S_IRUGO | S_IWUSR); 832 833 static ssize_t lio_target_nacl_show_tag( 834 struct se_node_acl *se_nacl, 835 char *page) 836 { 837 return snprintf(page, PAGE_SIZE, "%s", se_nacl->acl_tag); 838 } 839 840 static ssize_t lio_target_nacl_store_tag( 841 struct se_node_acl *se_nacl, 842 const char *page, 843 size_t count) 844 { 845 int ret; 846 847 ret = core_tpg_set_initiator_node_tag(se_nacl->se_tpg, se_nacl, page); 848 849 if (ret < 0) 850 return ret; 851 return count; 852 } 853 854 TF_NACL_BASE_ATTR(lio_target, tag, S_IRUGO | S_IWUSR); 855 856 static struct configfs_attribute *lio_target_initiator_attrs[] = { 857 &lio_target_nacl_info.attr, 858 &lio_target_nacl_cmdsn_depth.attr, 859 &lio_target_nacl_tag.attr, 860 NULL, 861 }; 862 863 static int lio_target_init_nodeacl(struct se_node_acl *se_nacl, 864 const char *name) 865 { 866 struct iscsi_node_acl *acl = 867 container_of(se_nacl, struct iscsi_node_acl, se_node_acl); 868 struct config_group *stats_cg = &se_nacl->acl_fabric_stat_group; 869 870 stats_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, 871 GFP_KERNEL); 872 if (!stats_cg->default_groups) { 873 pr_err("Unable to allocate memory for" 874 " stats_cg->default_groups\n"); 875 return -ENOMEM; 876 } 877 878 stats_cg->default_groups[0] = &acl->node_stat_grps.iscsi_sess_stats_group; 879 stats_cg->default_groups[1] = NULL; 880 config_group_init_type_name(&acl->node_stat_grps.iscsi_sess_stats_group, 881 "iscsi_sess_stats", &iscsi_stat_sess_cit); 882 883 return 0; 884 } 885 886 static void lio_target_cleanup_nodeacl( struct se_node_acl *se_nacl) 887 { 888 struct iscsi_node_acl *acl = container_of(se_nacl, 889 struct iscsi_node_acl, se_node_acl); 890 struct config_item *df_item; 891 struct config_group *stats_cg; 892 int i; 893 894 stats_cg = &acl->se_node_acl.acl_fabric_stat_group; 895 for (i = 0; stats_cg->default_groups[i]; i++) { 896 df_item = &stats_cg->default_groups[i]->cg_item; 897 stats_cg->default_groups[i] = NULL; 898 config_item_put(df_item); 899 } 900 kfree(stats_cg->default_groups); 901 } 902 903 /* End items for lio_target_acl_cit */ 904 905 /* Start items for lio_target_tpg_attrib_cit */ 906 907 #define DEF_TPG_ATTRIB(name) \ 908 \ 909 static ssize_t iscsi_tpg_attrib_show_##name( \ 910 struct se_portal_group *se_tpg, \ 911 char *page) \ 912 { \ 913 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 914 struct iscsi_portal_group, tpg_se_tpg); \ 915 ssize_t rb; \ 916 \ 917 if (iscsit_get_tpg(tpg) < 0) \ 918 return -EINVAL; \ 919 \ 920 rb = sprintf(page, "%u\n", tpg->tpg_attrib.name); \ 921 iscsit_put_tpg(tpg); \ 922 return rb; \ 923 } \ 924 \ 925 static ssize_t iscsi_tpg_attrib_store_##name( \ 926 struct se_portal_group *se_tpg, \ 927 const char *page, \ 928 size_t count) \ 929 { \ 930 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 931 struct iscsi_portal_group, tpg_se_tpg); \ 932 u32 val; \ 933 int ret; \ 934 \ 935 if (iscsit_get_tpg(tpg) < 0) \ 936 return -EINVAL; \ 937 \ 938 ret = kstrtou32(page, 0, &val); \ 939 if (ret) \ 940 goto out; \ 941 ret = iscsit_ta_##name(tpg, val); \ 942 if (ret < 0) \ 943 goto out; \ 944 \ 945 iscsit_put_tpg(tpg); \ 946 return count; \ 947 out: \ 948 iscsit_put_tpg(tpg); \ 949 return ret; \ 950 } 951 952 #define TPG_ATTR(_name, _mode) TF_TPG_ATTRIB_ATTR(iscsi, _name, _mode); 953 954 /* 955 * Define iscsi_tpg_attrib_s_authentication 956 */ 957 DEF_TPG_ATTRIB(authentication); 958 TPG_ATTR(authentication, S_IRUGO | S_IWUSR); 959 /* 960 * Define iscsi_tpg_attrib_s_login_timeout 961 */ 962 DEF_TPG_ATTRIB(login_timeout); 963 TPG_ATTR(login_timeout, S_IRUGO | S_IWUSR); 964 /* 965 * Define iscsi_tpg_attrib_s_netif_timeout 966 */ 967 DEF_TPG_ATTRIB(netif_timeout); 968 TPG_ATTR(netif_timeout, S_IRUGO | S_IWUSR); 969 /* 970 * Define iscsi_tpg_attrib_s_generate_node_acls 971 */ 972 DEF_TPG_ATTRIB(generate_node_acls); 973 TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR); 974 /* 975 * Define iscsi_tpg_attrib_s_default_cmdsn_depth 976 */ 977 DEF_TPG_ATTRIB(default_cmdsn_depth); 978 TPG_ATTR(default_cmdsn_depth, S_IRUGO | S_IWUSR); 979 /* 980 Define iscsi_tpg_attrib_s_cache_dynamic_acls 981 */ 982 DEF_TPG_ATTRIB(cache_dynamic_acls); 983 TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR); 984 /* 985 * Define iscsi_tpg_attrib_s_demo_mode_write_protect 986 */ 987 DEF_TPG_ATTRIB(demo_mode_write_protect); 988 TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR); 989 /* 990 * Define iscsi_tpg_attrib_s_prod_mode_write_protect 991 */ 992 DEF_TPG_ATTRIB(prod_mode_write_protect); 993 TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR); 994 /* 995 * Define iscsi_tpg_attrib_s_demo_mode_discovery, 996 */ 997 DEF_TPG_ATTRIB(demo_mode_discovery); 998 TPG_ATTR(demo_mode_discovery, S_IRUGO | S_IWUSR); 999 /* 1000 * Define iscsi_tpg_attrib_s_default_erl 1001 */ 1002 DEF_TPG_ATTRIB(default_erl); 1003 TPG_ATTR(default_erl, S_IRUGO | S_IWUSR); 1004 /* 1005 * Define iscsi_tpg_attrib_s_t10_pi 1006 */ 1007 DEF_TPG_ATTRIB(t10_pi); 1008 TPG_ATTR(t10_pi, S_IRUGO | S_IWUSR); 1009 /* 1010 * Define iscsi_tpg_attrib_s_fabric_prot_type 1011 */ 1012 DEF_TPG_ATTRIB(fabric_prot_type); 1013 TPG_ATTR(fabric_prot_type, S_IRUGO | S_IWUSR); 1014 1015 static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = { 1016 &iscsi_tpg_attrib_authentication.attr, 1017 &iscsi_tpg_attrib_login_timeout.attr, 1018 &iscsi_tpg_attrib_netif_timeout.attr, 1019 &iscsi_tpg_attrib_generate_node_acls.attr, 1020 &iscsi_tpg_attrib_default_cmdsn_depth.attr, 1021 &iscsi_tpg_attrib_cache_dynamic_acls.attr, 1022 &iscsi_tpg_attrib_demo_mode_write_protect.attr, 1023 &iscsi_tpg_attrib_prod_mode_write_protect.attr, 1024 &iscsi_tpg_attrib_demo_mode_discovery.attr, 1025 &iscsi_tpg_attrib_default_erl.attr, 1026 &iscsi_tpg_attrib_t10_pi.attr, 1027 &iscsi_tpg_attrib_fabric_prot_type.attr, 1028 NULL, 1029 }; 1030 1031 /* End items for lio_target_tpg_attrib_cit */ 1032 1033 /* Start items for lio_target_tpg_auth_cit */ 1034 1035 #define __DEF_TPG_AUTH_STR(prefix, name, flags) \ 1036 static ssize_t __iscsi_##prefix##_show_##name( \ 1037 struct se_portal_group *se_tpg, \ 1038 char *page) \ 1039 { \ 1040 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 1041 struct iscsi_portal_group, tpg_se_tpg); \ 1042 struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \ 1043 \ 1044 if (!capable(CAP_SYS_ADMIN)) \ 1045 return -EPERM; \ 1046 \ 1047 return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \ 1048 } \ 1049 \ 1050 static ssize_t __iscsi_##prefix##_store_##name( \ 1051 struct se_portal_group *se_tpg, \ 1052 const char *page, \ 1053 size_t count) \ 1054 { \ 1055 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 1056 struct iscsi_portal_group, tpg_se_tpg); \ 1057 struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \ 1058 \ 1059 if (!capable(CAP_SYS_ADMIN)) \ 1060 return -EPERM; \ 1061 \ 1062 snprintf(auth->name, sizeof(auth->name), "%s", page); \ 1063 if (!(strncmp("NULL", auth->name, 4))) \ 1064 auth->naf_flags &= ~flags; \ 1065 else \ 1066 auth->naf_flags |= flags; \ 1067 \ 1068 if ((auth->naf_flags & NAF_USERID_IN_SET) && \ 1069 (auth->naf_flags & NAF_PASSWORD_IN_SET)) \ 1070 auth->authenticate_target = 1; \ 1071 else \ 1072 auth->authenticate_target = 0; \ 1073 \ 1074 return count; \ 1075 } 1076 1077 #define __DEF_TPG_AUTH_INT(prefix, name) \ 1078 static ssize_t __iscsi_##prefix##_show_##name( \ 1079 struct se_portal_group *se_tpg, \ 1080 char *page) \ 1081 { \ 1082 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 1083 struct iscsi_portal_group, tpg_se_tpg); \ 1084 struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \ 1085 \ 1086 if (!capable(CAP_SYS_ADMIN)) \ 1087 return -EPERM; \ 1088 \ 1089 return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \ 1090 } 1091 1092 #define DEF_TPG_AUTH_STR(name, flags) \ 1093 __DEF_TPG_AUTH_STR(tpg_auth, name, flags) \ 1094 static ssize_t iscsi_tpg_auth_show_##name( \ 1095 struct se_portal_group *se_tpg, \ 1096 char *page) \ 1097 { \ 1098 return __iscsi_tpg_auth_show_##name(se_tpg, page); \ 1099 } \ 1100 \ 1101 static ssize_t iscsi_tpg_auth_store_##name( \ 1102 struct se_portal_group *se_tpg, \ 1103 const char *page, \ 1104 size_t count) \ 1105 { \ 1106 return __iscsi_tpg_auth_store_##name(se_tpg, page, count); \ 1107 } 1108 1109 #define DEF_TPG_AUTH_INT(name) \ 1110 __DEF_TPG_AUTH_INT(tpg_auth, name) \ 1111 static ssize_t iscsi_tpg_auth_show_##name( \ 1112 struct se_portal_group *se_tpg, \ 1113 char *page) \ 1114 { \ 1115 return __iscsi_tpg_auth_show_##name(se_tpg, page); \ 1116 } 1117 1118 #define TPG_AUTH_ATTR(_name, _mode) TF_TPG_AUTH_ATTR(iscsi, _name, _mode); 1119 #define TPG_AUTH_ATTR_RO(_name) TF_TPG_AUTH_ATTR_RO(iscsi, _name); 1120 1121 /* 1122 * * One-way authentication userid 1123 * */ 1124 DEF_TPG_AUTH_STR(userid, NAF_USERID_SET); 1125 TPG_AUTH_ATTR(userid, S_IRUGO | S_IWUSR); 1126 /* 1127 * * One-way authentication password 1128 * */ 1129 DEF_TPG_AUTH_STR(password, NAF_PASSWORD_SET); 1130 TPG_AUTH_ATTR(password, S_IRUGO | S_IWUSR); 1131 /* 1132 * * Enforce mutual authentication 1133 * */ 1134 DEF_TPG_AUTH_INT(authenticate_target); 1135 TPG_AUTH_ATTR_RO(authenticate_target); 1136 /* 1137 * * Mutual authentication userid 1138 * */ 1139 DEF_TPG_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); 1140 TPG_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR); 1141 /* 1142 * * Mutual authentication password 1143 * */ 1144 DEF_TPG_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); 1145 TPG_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR); 1146 1147 static struct configfs_attribute *lio_target_tpg_auth_attrs[] = { 1148 &iscsi_tpg_auth_userid.attr, 1149 &iscsi_tpg_auth_password.attr, 1150 &iscsi_tpg_auth_authenticate_target.attr, 1151 &iscsi_tpg_auth_userid_mutual.attr, 1152 &iscsi_tpg_auth_password_mutual.attr, 1153 NULL, 1154 }; 1155 1156 /* End items for lio_target_tpg_auth_cit */ 1157 1158 /* Start items for lio_target_tpg_param_cit */ 1159 1160 #define DEF_TPG_PARAM(name) \ 1161 static ssize_t iscsi_tpg_param_show_##name( \ 1162 struct se_portal_group *se_tpg, \ 1163 char *page) \ 1164 { \ 1165 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 1166 struct iscsi_portal_group, tpg_se_tpg); \ 1167 struct iscsi_param *param; \ 1168 ssize_t rb; \ 1169 \ 1170 if (iscsit_get_tpg(tpg) < 0) \ 1171 return -EINVAL; \ 1172 \ 1173 param = iscsi_find_param_from_key(__stringify(name), \ 1174 tpg->param_list); \ 1175 if (!param) { \ 1176 iscsit_put_tpg(tpg); \ 1177 return -EINVAL; \ 1178 } \ 1179 rb = snprintf(page, PAGE_SIZE, "%s\n", param->value); \ 1180 \ 1181 iscsit_put_tpg(tpg); \ 1182 return rb; \ 1183 } \ 1184 static ssize_t iscsi_tpg_param_store_##name( \ 1185 struct se_portal_group *se_tpg, \ 1186 const char *page, \ 1187 size_t count) \ 1188 { \ 1189 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 1190 struct iscsi_portal_group, tpg_se_tpg); \ 1191 char *buf; \ 1192 int ret, len; \ 1193 \ 1194 buf = kzalloc(PAGE_SIZE, GFP_KERNEL); \ 1195 if (!buf) \ 1196 return -ENOMEM; \ 1197 len = snprintf(buf, PAGE_SIZE, "%s=%s", __stringify(name), page); \ 1198 if (isspace(buf[len-1])) \ 1199 buf[len-1] = '\0'; /* Kill newline */ \ 1200 \ 1201 if (iscsit_get_tpg(tpg) < 0) { \ 1202 kfree(buf); \ 1203 return -EINVAL; \ 1204 } \ 1205 \ 1206 ret = iscsi_change_param_value(buf, tpg->param_list, 1); \ 1207 if (ret < 0) \ 1208 goto out; \ 1209 \ 1210 kfree(buf); \ 1211 iscsit_put_tpg(tpg); \ 1212 return count; \ 1213 out: \ 1214 kfree(buf); \ 1215 iscsit_put_tpg(tpg); \ 1216 return -EINVAL; \ 1217 } 1218 1219 #define TPG_PARAM_ATTR(_name, _mode) TF_TPG_PARAM_ATTR(iscsi, _name, _mode); 1220 1221 DEF_TPG_PARAM(AuthMethod); 1222 TPG_PARAM_ATTR(AuthMethod, S_IRUGO | S_IWUSR); 1223 1224 DEF_TPG_PARAM(HeaderDigest); 1225 TPG_PARAM_ATTR(HeaderDigest, S_IRUGO | S_IWUSR); 1226 1227 DEF_TPG_PARAM(DataDigest); 1228 TPG_PARAM_ATTR(DataDigest, S_IRUGO | S_IWUSR); 1229 1230 DEF_TPG_PARAM(MaxConnections); 1231 TPG_PARAM_ATTR(MaxConnections, S_IRUGO | S_IWUSR); 1232 1233 DEF_TPG_PARAM(TargetAlias); 1234 TPG_PARAM_ATTR(TargetAlias, S_IRUGO | S_IWUSR); 1235 1236 DEF_TPG_PARAM(InitialR2T); 1237 TPG_PARAM_ATTR(InitialR2T, S_IRUGO | S_IWUSR); 1238 1239 DEF_TPG_PARAM(ImmediateData); 1240 TPG_PARAM_ATTR(ImmediateData, S_IRUGO | S_IWUSR); 1241 1242 DEF_TPG_PARAM(MaxRecvDataSegmentLength); 1243 TPG_PARAM_ATTR(MaxRecvDataSegmentLength, S_IRUGO | S_IWUSR); 1244 1245 DEF_TPG_PARAM(MaxXmitDataSegmentLength); 1246 TPG_PARAM_ATTR(MaxXmitDataSegmentLength, S_IRUGO | S_IWUSR); 1247 1248 DEF_TPG_PARAM(MaxBurstLength); 1249 TPG_PARAM_ATTR(MaxBurstLength, S_IRUGO | S_IWUSR); 1250 1251 DEF_TPG_PARAM(FirstBurstLength); 1252 TPG_PARAM_ATTR(FirstBurstLength, S_IRUGO | S_IWUSR); 1253 1254 DEF_TPG_PARAM(DefaultTime2Wait); 1255 TPG_PARAM_ATTR(DefaultTime2Wait, S_IRUGO | S_IWUSR); 1256 1257 DEF_TPG_PARAM(DefaultTime2Retain); 1258 TPG_PARAM_ATTR(DefaultTime2Retain, S_IRUGO | S_IWUSR); 1259 1260 DEF_TPG_PARAM(MaxOutstandingR2T); 1261 TPG_PARAM_ATTR(MaxOutstandingR2T, S_IRUGO | S_IWUSR); 1262 1263 DEF_TPG_PARAM(DataPDUInOrder); 1264 TPG_PARAM_ATTR(DataPDUInOrder, S_IRUGO | S_IWUSR); 1265 1266 DEF_TPG_PARAM(DataSequenceInOrder); 1267 TPG_PARAM_ATTR(DataSequenceInOrder, S_IRUGO | S_IWUSR); 1268 1269 DEF_TPG_PARAM(ErrorRecoveryLevel); 1270 TPG_PARAM_ATTR(ErrorRecoveryLevel, S_IRUGO | S_IWUSR); 1271 1272 DEF_TPG_PARAM(IFMarker); 1273 TPG_PARAM_ATTR(IFMarker, S_IRUGO | S_IWUSR); 1274 1275 DEF_TPG_PARAM(OFMarker); 1276 TPG_PARAM_ATTR(OFMarker, S_IRUGO | S_IWUSR); 1277 1278 DEF_TPG_PARAM(IFMarkInt); 1279 TPG_PARAM_ATTR(IFMarkInt, S_IRUGO | S_IWUSR); 1280 1281 DEF_TPG_PARAM(OFMarkInt); 1282 TPG_PARAM_ATTR(OFMarkInt, S_IRUGO | S_IWUSR); 1283 1284 static struct configfs_attribute *lio_target_tpg_param_attrs[] = { 1285 &iscsi_tpg_param_AuthMethod.attr, 1286 &iscsi_tpg_param_HeaderDigest.attr, 1287 &iscsi_tpg_param_DataDigest.attr, 1288 &iscsi_tpg_param_MaxConnections.attr, 1289 &iscsi_tpg_param_TargetAlias.attr, 1290 &iscsi_tpg_param_InitialR2T.attr, 1291 &iscsi_tpg_param_ImmediateData.attr, 1292 &iscsi_tpg_param_MaxRecvDataSegmentLength.attr, 1293 &iscsi_tpg_param_MaxXmitDataSegmentLength.attr, 1294 &iscsi_tpg_param_MaxBurstLength.attr, 1295 &iscsi_tpg_param_FirstBurstLength.attr, 1296 &iscsi_tpg_param_DefaultTime2Wait.attr, 1297 &iscsi_tpg_param_DefaultTime2Retain.attr, 1298 &iscsi_tpg_param_MaxOutstandingR2T.attr, 1299 &iscsi_tpg_param_DataPDUInOrder.attr, 1300 &iscsi_tpg_param_DataSequenceInOrder.attr, 1301 &iscsi_tpg_param_ErrorRecoveryLevel.attr, 1302 &iscsi_tpg_param_IFMarker.attr, 1303 &iscsi_tpg_param_OFMarker.attr, 1304 &iscsi_tpg_param_IFMarkInt.attr, 1305 &iscsi_tpg_param_OFMarkInt.attr, 1306 NULL, 1307 }; 1308 1309 /* End items for lio_target_tpg_param_cit */ 1310 1311 /* Start items for lio_target_tpg_cit */ 1312 1313 static ssize_t lio_target_tpg_show_enable( 1314 struct se_portal_group *se_tpg, 1315 char *page) 1316 { 1317 struct iscsi_portal_group *tpg = container_of(se_tpg, 1318 struct iscsi_portal_group, tpg_se_tpg); 1319 ssize_t len; 1320 1321 spin_lock(&tpg->tpg_state_lock); 1322 len = sprintf(page, "%d\n", 1323 (tpg->tpg_state == TPG_STATE_ACTIVE) ? 1 : 0); 1324 spin_unlock(&tpg->tpg_state_lock); 1325 1326 return len; 1327 } 1328 1329 static ssize_t lio_target_tpg_store_enable( 1330 struct se_portal_group *se_tpg, 1331 const char *page, 1332 size_t count) 1333 { 1334 struct iscsi_portal_group *tpg = container_of(se_tpg, 1335 struct iscsi_portal_group, tpg_se_tpg); 1336 u32 op; 1337 int ret; 1338 1339 ret = kstrtou32(page, 0, &op); 1340 if (ret) 1341 return ret; 1342 if ((op != 1) && (op != 0)) { 1343 pr_err("Illegal value for tpg_enable: %u\n", op); 1344 return -EINVAL; 1345 } 1346 1347 ret = iscsit_get_tpg(tpg); 1348 if (ret < 0) 1349 return -EINVAL; 1350 1351 if (op) { 1352 ret = iscsit_tpg_enable_portal_group(tpg); 1353 if (ret < 0) 1354 goto out; 1355 } else { 1356 /* 1357 * iscsit_tpg_disable_portal_group() assumes force=1 1358 */ 1359 ret = iscsit_tpg_disable_portal_group(tpg, 1); 1360 if (ret < 0) 1361 goto out; 1362 } 1363 1364 iscsit_put_tpg(tpg); 1365 return count; 1366 out: 1367 iscsit_put_tpg(tpg); 1368 return -EINVAL; 1369 } 1370 1371 TF_TPG_BASE_ATTR(lio_target, enable, S_IRUGO | S_IWUSR); 1372 1373 static ssize_t lio_target_tpg_show_dynamic_sessions( 1374 struct se_portal_group *se_tpg, 1375 char *page) 1376 { 1377 return target_show_dynamic_sessions(se_tpg, page); 1378 } 1379 1380 TF_TPG_BASE_ATTR_RO(lio_target, dynamic_sessions); 1381 1382 static struct configfs_attribute *lio_target_tpg_attrs[] = { 1383 &lio_target_tpg_enable.attr, 1384 &lio_target_tpg_dynamic_sessions.attr, 1385 NULL, 1386 }; 1387 1388 /* End items for lio_target_tpg_cit */ 1389 1390 /* Start items for lio_target_tiqn_cit */ 1391 1392 static struct se_portal_group *lio_target_tiqn_addtpg( 1393 struct se_wwn *wwn, 1394 struct config_group *group, 1395 const char *name) 1396 { 1397 struct iscsi_portal_group *tpg; 1398 struct iscsi_tiqn *tiqn; 1399 char *tpgt_str; 1400 int ret; 1401 u16 tpgt; 1402 1403 tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn); 1404 /* 1405 * Only tpgt_# directory groups can be created below 1406 * target/iscsi/iqn.superturodiskarry/ 1407 */ 1408 tpgt_str = strstr(name, "tpgt_"); 1409 if (!tpgt_str) { 1410 pr_err("Unable to locate \"tpgt_#\" directory" 1411 " group\n"); 1412 return NULL; 1413 } 1414 tpgt_str += 5; /* Skip ahead of "tpgt_" */ 1415 ret = kstrtou16(tpgt_str, 0, &tpgt); 1416 if (ret) 1417 return NULL; 1418 1419 tpg = iscsit_alloc_portal_group(tiqn, tpgt); 1420 if (!tpg) 1421 return NULL; 1422 1423 ret = core_tpg_register(&iscsi_ops, wwn, &tpg->tpg_se_tpg, 1424 tpg, TRANSPORT_TPG_TYPE_NORMAL); 1425 if (ret < 0) 1426 return NULL; 1427 1428 ret = iscsit_tpg_add_portal_group(tiqn, tpg); 1429 if (ret != 0) 1430 goto out; 1431 1432 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn); 1433 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated TPG: %s\n", 1434 name); 1435 return &tpg->tpg_se_tpg; 1436 out: 1437 core_tpg_deregister(&tpg->tpg_se_tpg); 1438 kfree(tpg); 1439 return NULL; 1440 } 1441 1442 static void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg) 1443 { 1444 struct iscsi_portal_group *tpg; 1445 struct iscsi_tiqn *tiqn; 1446 1447 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); 1448 tiqn = tpg->tpg_tiqn; 1449 /* 1450 * iscsit_tpg_del_portal_group() assumes force=1 1451 */ 1452 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> Releasing TPG\n"); 1453 iscsit_tpg_del_portal_group(tiqn, tpg, 1); 1454 } 1455 1456 /* End items for lio_target_tiqn_cit */ 1457 1458 /* Start LIO-Target TIQN struct contig_item lio_target_cit */ 1459 1460 static ssize_t lio_target_wwn_show_attr_lio_version( 1461 struct target_fabric_configfs *tf, 1462 char *page) 1463 { 1464 return sprintf(page, "Datera Inc. iSCSI Target "ISCSIT_VERSION"\n"); 1465 } 1466 1467 TF_WWN_ATTR_RO(lio_target, lio_version); 1468 1469 static struct configfs_attribute *lio_target_wwn_attrs[] = { 1470 &lio_target_wwn_lio_version.attr, 1471 NULL, 1472 }; 1473 1474 static struct se_wwn *lio_target_call_coreaddtiqn( 1475 struct target_fabric_configfs *tf, 1476 struct config_group *group, 1477 const char *name) 1478 { 1479 struct config_group *stats_cg; 1480 struct iscsi_tiqn *tiqn; 1481 1482 tiqn = iscsit_add_tiqn((unsigned char *)name); 1483 if (IS_ERR(tiqn)) 1484 return ERR_CAST(tiqn); 1485 /* 1486 * Setup struct iscsi_wwn_stat_grps for se_wwn->fabric_stat_group. 1487 */ 1488 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group; 1489 1490 stats_cg->default_groups = kmalloc(sizeof(struct config_group *) * 6, 1491 GFP_KERNEL); 1492 if (!stats_cg->default_groups) { 1493 pr_err("Unable to allocate memory for" 1494 " stats_cg->default_groups\n"); 1495 iscsit_del_tiqn(tiqn); 1496 return ERR_PTR(-ENOMEM); 1497 } 1498 1499 stats_cg->default_groups[0] = &tiqn->tiqn_stat_grps.iscsi_instance_group; 1500 stats_cg->default_groups[1] = &tiqn->tiqn_stat_grps.iscsi_sess_err_group; 1501 stats_cg->default_groups[2] = &tiqn->tiqn_stat_grps.iscsi_tgt_attr_group; 1502 stats_cg->default_groups[3] = &tiqn->tiqn_stat_grps.iscsi_login_stats_group; 1503 stats_cg->default_groups[4] = &tiqn->tiqn_stat_grps.iscsi_logout_stats_group; 1504 stats_cg->default_groups[5] = NULL; 1505 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_instance_group, 1506 "iscsi_instance", &iscsi_stat_instance_cit); 1507 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_sess_err_group, 1508 "iscsi_sess_err", &iscsi_stat_sess_err_cit); 1509 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_tgt_attr_group, 1510 "iscsi_tgt_attr", &iscsi_stat_tgt_attr_cit); 1511 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_login_stats_group, 1512 "iscsi_login_stats", &iscsi_stat_login_cit); 1513 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_logout_stats_group, 1514 "iscsi_logout_stats", &iscsi_stat_logout_cit); 1515 1516 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn); 1517 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated Node:" 1518 " %s\n", name); 1519 return &tiqn->tiqn_wwn; 1520 } 1521 1522 static void lio_target_call_coredeltiqn( 1523 struct se_wwn *wwn) 1524 { 1525 struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn); 1526 struct config_item *df_item; 1527 struct config_group *stats_cg; 1528 int i; 1529 1530 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group; 1531 for (i = 0; stats_cg->default_groups[i]; i++) { 1532 df_item = &stats_cg->default_groups[i]->cg_item; 1533 stats_cg->default_groups[i] = NULL; 1534 config_item_put(df_item); 1535 } 1536 kfree(stats_cg->default_groups); 1537 1538 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s\n", 1539 tiqn->tiqn); 1540 iscsit_del_tiqn(tiqn); 1541 } 1542 1543 /* End LIO-Target TIQN struct contig_lio_target_cit */ 1544 1545 /* Start lio_target_discovery_auth_cit */ 1546 1547 #define DEF_DISC_AUTH_STR(name, flags) \ 1548 __DEF_NACL_AUTH_STR(disc, name, flags) \ 1549 static ssize_t iscsi_disc_show_##name( \ 1550 struct target_fabric_configfs *tf, \ 1551 char *page) \ 1552 { \ 1553 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \ 1554 page); \ 1555 } \ 1556 static ssize_t iscsi_disc_store_##name( \ 1557 struct target_fabric_configfs *tf, \ 1558 const char *page, \ 1559 size_t count) \ 1560 { \ 1561 return __iscsi_disc_store_##name(&iscsit_global->discovery_acl, \ 1562 page, count); \ 1563 } 1564 1565 #define DEF_DISC_AUTH_INT(name) \ 1566 __DEF_NACL_AUTH_INT(disc, name) \ 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 1575 #define DISC_AUTH_ATTR(_name, _mode) TF_DISC_ATTR(iscsi, _name, _mode) 1576 #define DISC_AUTH_ATTR_RO(_name) TF_DISC_ATTR_RO(iscsi, _name) 1577 1578 /* 1579 * One-way authentication userid 1580 */ 1581 DEF_DISC_AUTH_STR(userid, NAF_USERID_SET); 1582 DISC_AUTH_ATTR(userid, S_IRUGO | S_IWUSR); 1583 /* 1584 * One-way authentication password 1585 */ 1586 DEF_DISC_AUTH_STR(password, NAF_PASSWORD_SET); 1587 DISC_AUTH_ATTR(password, S_IRUGO | S_IWUSR); 1588 /* 1589 * Enforce mutual authentication 1590 */ 1591 DEF_DISC_AUTH_INT(authenticate_target); 1592 DISC_AUTH_ATTR_RO(authenticate_target); 1593 /* 1594 * Mutual authentication userid 1595 */ 1596 DEF_DISC_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); 1597 DISC_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR); 1598 /* 1599 * Mutual authentication password 1600 */ 1601 DEF_DISC_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); 1602 DISC_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR); 1603 1604 /* 1605 * enforce_discovery_auth 1606 */ 1607 static ssize_t iscsi_disc_show_enforce_discovery_auth( 1608 struct target_fabric_configfs *tf, 1609 char *page) 1610 { 1611 struct iscsi_node_auth *discovery_auth = &iscsit_global->discovery_acl.node_auth; 1612 1613 return sprintf(page, "%d\n", discovery_auth->enforce_discovery_auth); 1614 } 1615 1616 static ssize_t iscsi_disc_store_enforce_discovery_auth( 1617 struct target_fabric_configfs *tf, 1618 const char *page, 1619 size_t count) 1620 { 1621 struct iscsi_param *param; 1622 struct iscsi_portal_group *discovery_tpg = iscsit_global->discovery_tpg; 1623 u32 op; 1624 int err; 1625 1626 err = kstrtou32(page, 0, &op); 1627 if (err) 1628 return -EINVAL; 1629 if ((op != 1) && (op != 0)) { 1630 pr_err("Illegal value for enforce_discovery_auth:" 1631 " %u\n", op); 1632 return -EINVAL; 1633 } 1634 1635 if (!discovery_tpg) { 1636 pr_err("iscsit_global->discovery_tpg is NULL\n"); 1637 return -EINVAL; 1638 } 1639 1640 param = iscsi_find_param_from_key(AUTHMETHOD, 1641 discovery_tpg->param_list); 1642 if (!param) 1643 return -EINVAL; 1644 1645 if (op) { 1646 /* 1647 * Reset the AuthMethod key to CHAP. 1648 */ 1649 if (iscsi_update_param_value(param, CHAP) < 0) 1650 return -EINVAL; 1651 1652 discovery_tpg->tpg_attrib.authentication = 1; 1653 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 1; 1654 pr_debug("LIO-CORE[0] Successfully enabled" 1655 " authentication enforcement for iSCSI" 1656 " Discovery TPG\n"); 1657 } else { 1658 /* 1659 * Reset the AuthMethod key to CHAP,None 1660 */ 1661 if (iscsi_update_param_value(param, "CHAP,None") < 0) 1662 return -EINVAL; 1663 1664 discovery_tpg->tpg_attrib.authentication = 0; 1665 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 0; 1666 pr_debug("LIO-CORE[0] Successfully disabled" 1667 " authentication enforcement for iSCSI" 1668 " Discovery TPG\n"); 1669 } 1670 1671 return count; 1672 } 1673 1674 DISC_AUTH_ATTR(enforce_discovery_auth, S_IRUGO | S_IWUSR); 1675 1676 static struct configfs_attribute *lio_target_discovery_auth_attrs[] = { 1677 &iscsi_disc_userid.attr, 1678 &iscsi_disc_password.attr, 1679 &iscsi_disc_authenticate_target.attr, 1680 &iscsi_disc_userid_mutual.attr, 1681 &iscsi_disc_password_mutual.attr, 1682 &iscsi_disc_enforce_discovery_auth.attr, 1683 NULL, 1684 }; 1685 1686 /* End lio_target_discovery_auth_cit */ 1687 1688 /* Start functions for target_core_fabric_ops */ 1689 1690 static char *iscsi_get_fabric_name(void) 1691 { 1692 return "iSCSI"; 1693 } 1694 1695 static u32 iscsi_get_task_tag(struct se_cmd *se_cmd) 1696 { 1697 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1698 1699 /* only used for printks or comparism with ->ref_task_tag */ 1700 return (__force u32)cmd->init_task_tag; 1701 } 1702 1703 static int iscsi_get_cmd_state(struct se_cmd *se_cmd) 1704 { 1705 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1706 1707 return cmd->i_state; 1708 } 1709 1710 static u32 lio_sess_get_index(struct se_session *se_sess) 1711 { 1712 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1713 1714 return sess->session_index; 1715 } 1716 1717 static u32 lio_sess_get_initiator_sid( 1718 struct se_session *se_sess, 1719 unsigned char *buf, 1720 u32 size) 1721 { 1722 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1723 /* 1724 * iSCSI Initiator Session Identifier from RFC-3720. 1725 */ 1726 return snprintf(buf, size, "%6phN", sess->isid); 1727 } 1728 1729 static int lio_queue_data_in(struct se_cmd *se_cmd) 1730 { 1731 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1732 1733 cmd->i_state = ISTATE_SEND_DATAIN; 1734 cmd->conn->conn_transport->iscsit_queue_data_in(cmd->conn, cmd); 1735 1736 return 0; 1737 } 1738 1739 static int lio_write_pending(struct se_cmd *se_cmd) 1740 { 1741 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1742 struct iscsi_conn *conn = cmd->conn; 1743 1744 if (!cmd->immediate_data && !cmd->unsolicited_data) 1745 return conn->conn_transport->iscsit_get_dataout(conn, cmd, false); 1746 1747 return 0; 1748 } 1749 1750 static int lio_write_pending_status(struct se_cmd *se_cmd) 1751 { 1752 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1753 int ret; 1754 1755 spin_lock_bh(&cmd->istate_lock); 1756 ret = !(cmd->cmd_flags & ICF_GOT_LAST_DATAOUT); 1757 spin_unlock_bh(&cmd->istate_lock); 1758 1759 return ret; 1760 } 1761 1762 static int lio_queue_status(struct se_cmd *se_cmd) 1763 { 1764 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1765 1766 cmd->i_state = ISTATE_SEND_STATUS; 1767 1768 if (cmd->se_cmd.scsi_status || cmd->sense_reason) { 1769 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); 1770 return 0; 1771 } 1772 cmd->conn->conn_transport->iscsit_queue_status(cmd->conn, cmd); 1773 1774 return 0; 1775 } 1776 1777 static void lio_queue_tm_rsp(struct se_cmd *se_cmd) 1778 { 1779 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1780 1781 cmd->i_state = ISTATE_SEND_TASKMGTRSP; 1782 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); 1783 } 1784 1785 static void lio_aborted_task(struct se_cmd *se_cmd) 1786 { 1787 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1788 1789 cmd->conn->conn_transport->iscsit_aborted_task(cmd->conn, cmd); 1790 } 1791 1792 static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg) 1793 { 1794 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1795 1796 return &tpg->tpg_tiqn->tiqn[0]; 1797 } 1798 1799 static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg) 1800 { 1801 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1802 1803 return tpg->tpgt; 1804 } 1805 1806 static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg) 1807 { 1808 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1809 1810 return tpg->tpg_attrib.default_cmdsn_depth; 1811 } 1812 1813 static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg) 1814 { 1815 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1816 1817 return tpg->tpg_attrib.generate_node_acls; 1818 } 1819 1820 static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg) 1821 { 1822 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1823 1824 return tpg->tpg_attrib.cache_dynamic_acls; 1825 } 1826 1827 static int lio_tpg_check_demo_mode_write_protect( 1828 struct se_portal_group *se_tpg) 1829 { 1830 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1831 1832 return tpg->tpg_attrib.demo_mode_write_protect; 1833 } 1834 1835 static int lio_tpg_check_prod_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 tpg->tpg_attrib.prod_mode_write_protect; 1841 } 1842 1843 static int lio_tpg_check_prot_fabric_only( 1844 struct se_portal_group *se_tpg) 1845 { 1846 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1847 /* 1848 * Only report fabric_prot_type if t10_pi has also been enabled 1849 * for incoming ib_isert sessions. 1850 */ 1851 if (!tpg->tpg_attrib.t10_pi) 1852 return 0; 1853 1854 return tpg->tpg_attrib.fabric_prot_type; 1855 } 1856 1857 /* 1858 * Called with spin_lock_bh(struct se_portal_group->session_lock) held.. 1859 * 1860 * Also, this function calls iscsit_inc_session_usage_count() on the 1861 * struct iscsi_session in question. 1862 */ 1863 static int lio_tpg_shutdown_session(struct se_session *se_sess) 1864 { 1865 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1866 1867 spin_lock(&sess->conn_lock); 1868 if (atomic_read(&sess->session_fall_back_to_erl0) || 1869 atomic_read(&sess->session_logout) || 1870 (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) { 1871 spin_unlock(&sess->conn_lock); 1872 return 0; 1873 } 1874 atomic_set(&sess->session_reinstatement, 1); 1875 spin_unlock(&sess->conn_lock); 1876 1877 iscsit_stop_time2retain_timer(sess); 1878 iscsit_stop_session(sess, 1, 1); 1879 1880 return 1; 1881 } 1882 1883 /* 1884 * Calls iscsit_dec_session_usage_count() as inverse of 1885 * lio_tpg_shutdown_session() 1886 */ 1887 static void lio_tpg_close_session(struct se_session *se_sess) 1888 { 1889 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1890 /* 1891 * If the iSCSI Session for the iSCSI Initiator Node exists, 1892 * forcefully shutdown the iSCSI NEXUS. 1893 */ 1894 iscsit_close_session(sess); 1895 } 1896 1897 static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg) 1898 { 1899 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1900 1901 return tpg->tpg_tiqn->tiqn_index; 1902 } 1903 1904 static void lio_set_default_node_attributes(struct se_node_acl *se_acl) 1905 { 1906 struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl, 1907 se_node_acl); 1908 struct se_portal_group *se_tpg = se_acl->se_tpg; 1909 struct iscsi_portal_group *tpg = container_of(se_tpg, 1910 struct iscsi_portal_group, tpg_se_tpg); 1911 1912 acl->node_attrib.nacl = acl; 1913 iscsit_set_default_node_attribues(acl, tpg); 1914 } 1915 1916 static int lio_check_stop_free(struct se_cmd *se_cmd) 1917 { 1918 return target_put_sess_cmd(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 const struct target_core_fabric_ops iscsi_ops = { 1930 .module = THIS_MODULE, 1931 .name = "iscsi", 1932 .node_acl_size = sizeof(struct iscsi_node_acl), 1933 .get_fabric_name = iscsi_get_fabric_name, 1934 .get_fabric_proto_ident = iscsi_get_fabric_proto_ident, 1935 .tpg_get_wwn = lio_tpg_get_endpoint_wwn, 1936 .tpg_get_tag = lio_tpg_get_tag, 1937 .tpg_get_default_depth = lio_tpg_get_default_depth, 1938 .tpg_get_pr_transport_id = iscsi_get_pr_transport_id, 1939 .tpg_get_pr_transport_id_len = iscsi_get_pr_transport_id_len, 1940 .tpg_parse_pr_out_transport_id = iscsi_parse_pr_out_transport_id, 1941 .tpg_check_demo_mode = lio_tpg_check_demo_mode, 1942 .tpg_check_demo_mode_cache = lio_tpg_check_demo_mode_cache, 1943 .tpg_check_demo_mode_write_protect = 1944 lio_tpg_check_demo_mode_write_protect, 1945 .tpg_check_prod_mode_write_protect = 1946 lio_tpg_check_prod_mode_write_protect, 1947 .tpg_check_prot_fabric_only = &lio_tpg_check_prot_fabric_only, 1948 .tpg_get_inst_index = lio_tpg_get_inst_index, 1949 .check_stop_free = lio_check_stop_free, 1950 .release_cmd = lio_release_cmd, 1951 .shutdown_session = lio_tpg_shutdown_session, 1952 .close_session = lio_tpg_close_session, 1953 .sess_get_index = lio_sess_get_index, 1954 .sess_get_initiator_sid = lio_sess_get_initiator_sid, 1955 .write_pending = lio_write_pending, 1956 .write_pending_status = lio_write_pending_status, 1957 .set_default_node_attributes = lio_set_default_node_attributes, 1958 .get_task_tag = iscsi_get_task_tag, 1959 .get_cmd_state = iscsi_get_cmd_state, 1960 .queue_data_in = lio_queue_data_in, 1961 .queue_status = lio_queue_status, 1962 .queue_tm_rsp = lio_queue_tm_rsp, 1963 .aborted_task = lio_aborted_task, 1964 .fabric_make_wwn = lio_target_call_coreaddtiqn, 1965 .fabric_drop_wwn = lio_target_call_coredeltiqn, 1966 .fabric_make_tpg = lio_target_tiqn_addtpg, 1967 .fabric_drop_tpg = lio_target_tiqn_deltpg, 1968 .fabric_make_np = lio_target_call_addnptotpg, 1969 .fabric_drop_np = lio_target_call_delnpfromtpg, 1970 .fabric_init_nodeacl = lio_target_init_nodeacl, 1971 .fabric_cleanup_nodeacl = lio_target_cleanup_nodeacl, 1972 1973 .tfc_discovery_attrs = lio_target_discovery_auth_attrs, 1974 .tfc_wwn_attrs = lio_target_wwn_attrs, 1975 .tfc_tpg_base_attrs = lio_target_tpg_attrs, 1976 .tfc_tpg_attrib_attrs = lio_target_tpg_attrib_attrs, 1977 .tfc_tpg_auth_attrs = lio_target_tpg_auth_attrs, 1978 .tfc_tpg_param_attrs = lio_target_tpg_param_attrs, 1979 .tfc_tpg_np_base_attrs = lio_target_portal_attrs, 1980 .tfc_tpg_nacl_base_attrs = lio_target_initiator_attrs, 1981 .tfc_tpg_nacl_attrib_attrs = lio_target_nacl_attrib_attrs, 1982 .tfc_tpg_nacl_auth_attrs = lio_target_nacl_auth_attrs, 1983 .tfc_tpg_nacl_param_attrs = lio_target_nacl_param_attrs, 1984 }; 1985