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 41struct 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 49static 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 67static 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 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; 118out: 119 iscsit_put_tpg(tpg); 120 return -EINVAL; 121} 122 123TF_NP_BASE_ATTR(lio_target, sctp, S_IRUGO | S_IWUSR); 124 125static 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 143static 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 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; 197out: 198 iscsit_put_tpg(tpg); 199 return rc; 200} 201 202TF_NP_BASE_ATTR(lio_target, iser, S_IRUGO | S_IWUSR); 203 204static 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 216static 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 unbracketed IPv6 address */ 253 str2++; /* Skip over the \0 */ 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, 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 332static 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: %pISc:%hu\n", config_item_name(&se_tpg->se_tpg_wwn->wwn_group.cg_item), 349 tpg->tpgt, &tpg_np->tpg_np->np_sockaddr, 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"); 356out: 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) \ 365static 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 \ 375static 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 */ 399DEF_NACL_ATTRIB(dataout_timeout); 400NACL_ATTR(dataout_timeout, S_IRUGO | S_IWUSR); 401/* 402 * Define iscsi_node_attrib_s_dataout_timeout_retries 403 */ 404DEF_NACL_ATTRIB(dataout_timeout_retries); 405NACL_ATTR(dataout_timeout_retries, S_IRUGO | S_IWUSR); 406/* 407 * Define iscsi_node_attrib_s_default_erl 408 */ 409DEF_NACL_ATTRIB(default_erl); 410NACL_ATTR(default_erl, S_IRUGO | S_IWUSR); 411/* 412 * Define iscsi_node_attrib_s_nopin_timeout 413 */ 414DEF_NACL_ATTRIB(nopin_timeout); 415NACL_ATTR(nopin_timeout, S_IRUGO | S_IWUSR); 416/* 417 * Define iscsi_node_attrib_s_nopin_response_timeout 418 */ 419DEF_NACL_ATTRIB(nopin_response_timeout); 420NACL_ATTR(nopin_response_timeout, S_IRUGO | S_IWUSR); 421/* 422 * Define iscsi_node_attrib_s_random_datain_pdu_offsets 423 */ 424DEF_NACL_ATTRIB(random_datain_pdu_offsets); 425NACL_ATTR(random_datain_pdu_offsets, S_IRUGO | S_IWUSR); 426/* 427 * Define iscsi_node_attrib_s_random_datain_seq_offsets 428 */ 429DEF_NACL_ATTRIB(random_datain_seq_offsets); 430NACL_ATTR(random_datain_seq_offsets, S_IRUGO | S_IWUSR); 431/* 432 * Define iscsi_node_attrib_s_random_r2t_offsets 433 */ 434DEF_NACL_ATTRIB(random_r2t_offsets); 435NACL_ATTR(random_r2t_offsets, S_IRUGO | S_IWUSR); 436 437static 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) \ 454static 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 \ 465static 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) \ 492static 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) \ 506static 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} \ 513static 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) \ 524static 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 */ 538DEF_NACL_AUTH_STR(userid, NAF_USERID_SET); 539AUTH_ATTR(userid, S_IRUGO | S_IWUSR); 540/* 541 * One-way authentication password 542 */ 543DEF_NACL_AUTH_STR(password, NAF_PASSWORD_SET); 544AUTH_ATTR(password, S_IRUGO | S_IWUSR); 545/* 546 * Enforce mutual authentication 547 */ 548DEF_NACL_AUTH_INT(authenticate_target); 549AUTH_ATTR_RO(authenticate_target); 550/* 551 * Mutual authentication userid 552 */ 553DEF_NACL_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); 554AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR); 555/* 556 * Mutual authentication password 557 */ 558DEF_NACL_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); 559AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR); 560 561static 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) \ 575static 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 600DEF_NACL_PARAM(MaxConnections); 601NACL_PARAM_ATTR(MaxConnections); 602 603DEF_NACL_PARAM(InitialR2T); 604NACL_PARAM_ATTR(InitialR2T); 605 606DEF_NACL_PARAM(ImmediateData); 607NACL_PARAM_ATTR(ImmediateData); 608 609DEF_NACL_PARAM(MaxBurstLength); 610NACL_PARAM_ATTR(MaxBurstLength); 611 612DEF_NACL_PARAM(FirstBurstLength); 613NACL_PARAM_ATTR(FirstBurstLength); 614 615DEF_NACL_PARAM(DefaultTime2Wait); 616NACL_PARAM_ATTR(DefaultTime2Wait); 617 618DEF_NACL_PARAM(DefaultTime2Retain); 619NACL_PARAM_ATTR(DefaultTime2Retain); 620 621DEF_NACL_PARAM(MaxOutstandingR2T); 622NACL_PARAM_ATTR(MaxOutstandingR2T); 623 624DEF_NACL_PARAM(DataPDUInOrder); 625NACL_PARAM_ATTR(DataPDUInOrder); 626 627DEF_NACL_PARAM(DataSequenceInOrder); 628NACL_PARAM_ATTR(DataSequenceInOrder); 629 630DEF_NACL_PARAM(ErrorRecoveryLevel); 631NACL_PARAM_ATTR(ErrorRecoveryLevel); 632 633static 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 652static 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 768TF_NACL_BASE_ATTR_RO(lio_target, info); 769 770static 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 777static 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 831TF_NACL_BASE_ATTR(lio_target, cmdsn_depth, S_IRUGO | S_IWUSR); 832 833static 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 840static 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 854TF_NACL_BASE_ATTR(lio_target, tag, S_IRUGO | S_IWUSR); 855 856static 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 863static struct se_node_acl *lio_tpg_alloc_fabric_acl( 864 struct se_portal_group *se_tpg) 865{ 866 struct iscsi_node_acl *acl; 867 868 acl = kzalloc(sizeof(struct iscsi_node_acl), GFP_KERNEL); 869 if (!acl) { 870 pr_err("Unable to allocate memory for struct iscsi_node_acl\n"); 871 return NULL; 872 } 873 874 return &acl->se_node_acl; 875} 876 877static struct se_node_acl *lio_target_make_nodeacl( 878 struct se_portal_group *se_tpg, 879 struct config_group *group, 880 const char *name) 881{ 882 struct config_group *stats_cg; 883 struct iscsi_node_acl *acl; 884 struct se_node_acl *se_nacl_new, *se_nacl; 885 struct iscsi_portal_group *tpg = container_of(se_tpg, 886 struct iscsi_portal_group, tpg_se_tpg); 887 u32 cmdsn_depth; 888 889 se_nacl_new = lio_tpg_alloc_fabric_acl(se_tpg); 890 if (!se_nacl_new) 891 return ERR_PTR(-ENOMEM); 892 893 cmdsn_depth = tpg->tpg_attrib.default_cmdsn_depth; 894 /* 895 * se_nacl_new may be released by core_tpg_add_initiator_node_acl() 896 * when converting a NdoeACL from demo mode -> explict 897 */ 898 se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new, 899 name, cmdsn_depth); 900 if (IS_ERR(se_nacl)) 901 return se_nacl; 902 903 acl = container_of(se_nacl, struct iscsi_node_acl, se_node_acl); 904 stats_cg = &se_nacl->acl_fabric_stat_group; 905 906 stats_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2, 907 GFP_KERNEL); 908 if (!stats_cg->default_groups) { 909 pr_err("Unable to allocate memory for" 910 " stats_cg->default_groups\n"); 911 core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1); 912 kfree(acl); 913 return ERR_PTR(-ENOMEM); 914 } 915 916 stats_cg->default_groups[0] = &acl->node_stat_grps.iscsi_sess_stats_group; 917 stats_cg->default_groups[1] = NULL; 918 config_group_init_type_name(&acl->node_stat_grps.iscsi_sess_stats_group, 919 "iscsi_sess_stats", &iscsi_stat_sess_cit); 920 921 return se_nacl; 922} 923 924static void lio_target_drop_nodeacl( 925 struct se_node_acl *se_nacl) 926{ 927 struct se_portal_group *se_tpg = se_nacl->se_tpg; 928 struct iscsi_node_acl *acl = container_of(se_nacl, 929 struct iscsi_node_acl, se_node_acl); 930 struct config_item *df_item; 931 struct config_group *stats_cg; 932 int i; 933 934 stats_cg = &acl->se_node_acl.acl_fabric_stat_group; 935 for (i = 0; stats_cg->default_groups[i]; i++) { 936 df_item = &stats_cg->default_groups[i]->cg_item; 937 stats_cg->default_groups[i] = NULL; 938 config_item_put(df_item); 939 } 940 kfree(stats_cg->default_groups); 941 942 core_tpg_del_initiator_node_acl(se_tpg, se_nacl, 1); 943 kfree(acl); 944} 945 946/* End items for lio_target_acl_cit */ 947 948/* Start items for lio_target_tpg_attrib_cit */ 949 950#define DEF_TPG_ATTRIB(name) \ 951 \ 952static ssize_t iscsi_tpg_attrib_show_##name( \ 953 struct se_portal_group *se_tpg, \ 954 char *page) \ 955{ \ 956 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 957 struct iscsi_portal_group, tpg_se_tpg); \ 958 ssize_t rb; \ 959 \ 960 if (iscsit_get_tpg(tpg) < 0) \ 961 return -EINVAL; \ 962 \ 963 rb = sprintf(page, "%u\n", tpg->tpg_attrib.name); \ 964 iscsit_put_tpg(tpg); \ 965 return rb; \ 966} \ 967 \ 968static ssize_t iscsi_tpg_attrib_store_##name( \ 969 struct se_portal_group *se_tpg, \ 970 const char *page, \ 971 size_t count) \ 972{ \ 973 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 974 struct iscsi_portal_group, tpg_se_tpg); \ 975 u32 val; \ 976 int ret; \ 977 \ 978 if (iscsit_get_tpg(tpg) < 0) \ 979 return -EINVAL; \ 980 \ 981 ret = kstrtou32(page, 0, &val); \ 982 if (ret) \ 983 goto out; \ 984 ret = iscsit_ta_##name(tpg, val); \ 985 if (ret < 0) \ 986 goto out; \ 987 \ 988 iscsit_put_tpg(tpg); \ 989 return count; \ 990out: \ 991 iscsit_put_tpg(tpg); \ 992 return ret; \ 993} 994 995#define TPG_ATTR(_name, _mode) TF_TPG_ATTRIB_ATTR(iscsi, _name, _mode); 996 997/* 998 * Define iscsi_tpg_attrib_s_authentication 999 */ 1000DEF_TPG_ATTRIB(authentication); 1001TPG_ATTR(authentication, S_IRUGO | S_IWUSR); 1002/* 1003 * Define iscsi_tpg_attrib_s_login_timeout 1004 */ 1005DEF_TPG_ATTRIB(login_timeout); 1006TPG_ATTR(login_timeout, S_IRUGO | S_IWUSR); 1007/* 1008 * Define iscsi_tpg_attrib_s_netif_timeout 1009 */ 1010DEF_TPG_ATTRIB(netif_timeout); 1011TPG_ATTR(netif_timeout, S_IRUGO | S_IWUSR); 1012/* 1013 * Define iscsi_tpg_attrib_s_generate_node_acls 1014 */ 1015DEF_TPG_ATTRIB(generate_node_acls); 1016TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR); 1017/* 1018 * Define iscsi_tpg_attrib_s_default_cmdsn_depth 1019 */ 1020DEF_TPG_ATTRIB(default_cmdsn_depth); 1021TPG_ATTR(default_cmdsn_depth, S_IRUGO | S_IWUSR); 1022/* 1023 Define iscsi_tpg_attrib_s_cache_dynamic_acls 1024 */ 1025DEF_TPG_ATTRIB(cache_dynamic_acls); 1026TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR); 1027/* 1028 * Define iscsi_tpg_attrib_s_demo_mode_write_protect 1029 */ 1030DEF_TPG_ATTRIB(demo_mode_write_protect); 1031TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR); 1032/* 1033 * Define iscsi_tpg_attrib_s_prod_mode_write_protect 1034 */ 1035DEF_TPG_ATTRIB(prod_mode_write_protect); 1036TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR); 1037/* 1038 * Define iscsi_tpg_attrib_s_demo_mode_discovery, 1039 */ 1040DEF_TPG_ATTRIB(demo_mode_discovery); 1041TPG_ATTR(demo_mode_discovery, S_IRUGO | S_IWUSR); 1042/* 1043 * Define iscsi_tpg_attrib_s_default_erl 1044 */ 1045DEF_TPG_ATTRIB(default_erl); 1046TPG_ATTR(default_erl, S_IRUGO | S_IWUSR); 1047/* 1048 * Define iscsi_tpg_attrib_s_t10_pi 1049 */ 1050DEF_TPG_ATTRIB(t10_pi); 1051TPG_ATTR(t10_pi, S_IRUGO | S_IWUSR); 1052/* 1053 * Define iscsi_tpg_attrib_s_fabric_prot_type 1054 */ 1055DEF_TPG_ATTRIB(fabric_prot_type); 1056TPG_ATTR(fabric_prot_type, S_IRUGO | S_IWUSR); 1057 1058static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = { 1059 &iscsi_tpg_attrib_authentication.attr, 1060 &iscsi_tpg_attrib_login_timeout.attr, 1061 &iscsi_tpg_attrib_netif_timeout.attr, 1062 &iscsi_tpg_attrib_generate_node_acls.attr, 1063 &iscsi_tpg_attrib_default_cmdsn_depth.attr, 1064 &iscsi_tpg_attrib_cache_dynamic_acls.attr, 1065 &iscsi_tpg_attrib_demo_mode_write_protect.attr, 1066 &iscsi_tpg_attrib_prod_mode_write_protect.attr, 1067 &iscsi_tpg_attrib_demo_mode_discovery.attr, 1068 &iscsi_tpg_attrib_default_erl.attr, 1069 &iscsi_tpg_attrib_t10_pi.attr, 1070 &iscsi_tpg_attrib_fabric_prot_type.attr, 1071 NULL, 1072}; 1073 1074/* End items for lio_target_tpg_attrib_cit */ 1075 1076/* Start items for lio_target_tpg_auth_cit */ 1077 1078#define __DEF_TPG_AUTH_STR(prefix, name, flags) \ 1079static ssize_t __iscsi_##prefix##_show_##name( \ 1080 struct se_portal_group *se_tpg, \ 1081 char *page) \ 1082{ \ 1083 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 1084 struct iscsi_portal_group, tpg_se_tpg); \ 1085 struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \ 1086 \ 1087 if (!capable(CAP_SYS_ADMIN)) \ 1088 return -EPERM; \ 1089 \ 1090 return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \ 1091} \ 1092 \ 1093static ssize_t __iscsi_##prefix##_store_##name( \ 1094 struct se_portal_group *se_tpg, \ 1095 const char *page, \ 1096 size_t count) \ 1097{ \ 1098 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 1099 struct iscsi_portal_group, tpg_se_tpg); \ 1100 struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \ 1101 \ 1102 if (!capable(CAP_SYS_ADMIN)) \ 1103 return -EPERM; \ 1104 \ 1105 snprintf(auth->name, sizeof(auth->name), "%s", page); \ 1106 if (!(strncmp("NULL", auth->name, 4))) \ 1107 auth->naf_flags &= ~flags; \ 1108 else \ 1109 auth->naf_flags |= flags; \ 1110 \ 1111 if ((auth->naf_flags & NAF_USERID_IN_SET) && \ 1112 (auth->naf_flags & NAF_PASSWORD_IN_SET)) \ 1113 auth->authenticate_target = 1; \ 1114 else \ 1115 auth->authenticate_target = 0; \ 1116 \ 1117 return count; \ 1118} 1119 1120#define __DEF_TPG_AUTH_INT(prefix, name) \ 1121static ssize_t __iscsi_##prefix##_show_##name( \ 1122 struct se_portal_group *se_tpg, \ 1123 char *page) \ 1124{ \ 1125 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 1126 struct iscsi_portal_group, tpg_se_tpg); \ 1127 struct iscsi_node_auth *auth = &tpg->tpg_demo_auth; \ 1128 \ 1129 if (!capable(CAP_SYS_ADMIN)) \ 1130 return -EPERM; \ 1131 \ 1132 return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \ 1133} 1134 1135#define DEF_TPG_AUTH_STR(name, flags) \ 1136 __DEF_TPG_AUTH_STR(tpg_auth, name, flags) \ 1137static 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 \ 1144static ssize_t iscsi_tpg_auth_store_##name( \ 1145 struct se_portal_group *se_tpg, \ 1146 const char *page, \ 1147 size_t count) \ 1148{ \ 1149 return __iscsi_tpg_auth_store_##name(se_tpg, page, count); \ 1150} 1151 1152#define DEF_TPG_AUTH_INT(name) \ 1153 __DEF_TPG_AUTH_INT(tpg_auth, name) \ 1154static ssize_t iscsi_tpg_auth_show_##name( \ 1155 struct se_portal_group *se_tpg, \ 1156 char *page) \ 1157{ \ 1158 return __iscsi_tpg_auth_show_##name(se_tpg, page); \ 1159} 1160 1161#define TPG_AUTH_ATTR(_name, _mode) TF_TPG_AUTH_ATTR(iscsi, _name, _mode); 1162#define TPG_AUTH_ATTR_RO(_name) TF_TPG_AUTH_ATTR_RO(iscsi, _name); 1163 1164/* 1165 * * One-way authentication userid 1166 * */ 1167DEF_TPG_AUTH_STR(userid, NAF_USERID_SET); 1168TPG_AUTH_ATTR(userid, S_IRUGO | S_IWUSR); 1169/* 1170 * * One-way authentication password 1171 * */ 1172DEF_TPG_AUTH_STR(password, NAF_PASSWORD_SET); 1173TPG_AUTH_ATTR(password, S_IRUGO | S_IWUSR); 1174/* 1175 * * Enforce mutual authentication 1176 * */ 1177DEF_TPG_AUTH_INT(authenticate_target); 1178TPG_AUTH_ATTR_RO(authenticate_target); 1179/* 1180 * * Mutual authentication userid 1181 * */ 1182DEF_TPG_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); 1183TPG_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR); 1184/* 1185 * * Mutual authentication password 1186 * */ 1187DEF_TPG_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); 1188TPG_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR); 1189 1190static struct configfs_attribute *lio_target_tpg_auth_attrs[] = { 1191 &iscsi_tpg_auth_userid.attr, 1192 &iscsi_tpg_auth_password.attr, 1193 &iscsi_tpg_auth_authenticate_target.attr, 1194 &iscsi_tpg_auth_userid_mutual.attr, 1195 &iscsi_tpg_auth_password_mutual.attr, 1196 NULL, 1197}; 1198 1199/* End items for lio_target_tpg_auth_cit */ 1200 1201/* Start items for lio_target_tpg_param_cit */ 1202 1203#define DEF_TPG_PARAM(name) \ 1204static ssize_t iscsi_tpg_param_show_##name( \ 1205 struct se_portal_group *se_tpg, \ 1206 char *page) \ 1207{ \ 1208 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 1209 struct iscsi_portal_group, tpg_se_tpg); \ 1210 struct iscsi_param *param; \ 1211 ssize_t rb; \ 1212 \ 1213 if (iscsit_get_tpg(tpg) < 0) \ 1214 return -EINVAL; \ 1215 \ 1216 param = iscsi_find_param_from_key(__stringify(name), \ 1217 tpg->param_list); \ 1218 if (!param) { \ 1219 iscsit_put_tpg(tpg); \ 1220 return -EINVAL; \ 1221 } \ 1222 rb = snprintf(page, PAGE_SIZE, "%s\n", param->value); \ 1223 \ 1224 iscsit_put_tpg(tpg); \ 1225 return rb; \ 1226} \ 1227static ssize_t iscsi_tpg_param_store_##name( \ 1228 struct se_portal_group *se_tpg, \ 1229 const char *page, \ 1230 size_t count) \ 1231{ \ 1232 struct iscsi_portal_group *tpg = container_of(se_tpg, \ 1233 struct iscsi_portal_group, tpg_se_tpg); \ 1234 char *buf; \ 1235 int ret, len; \ 1236 \ 1237 buf = kzalloc(PAGE_SIZE, GFP_KERNEL); \ 1238 if (!buf) \ 1239 return -ENOMEM; \ 1240 len = snprintf(buf, PAGE_SIZE, "%s=%s", __stringify(name), page); \ 1241 if (isspace(buf[len-1])) \ 1242 buf[len-1] = '\0'; /* Kill newline */ \ 1243 \ 1244 if (iscsit_get_tpg(tpg) < 0) { \ 1245 kfree(buf); \ 1246 return -EINVAL; \ 1247 } \ 1248 \ 1249 ret = iscsi_change_param_value(buf, tpg->param_list, 1); \ 1250 if (ret < 0) \ 1251 goto out; \ 1252 \ 1253 kfree(buf); \ 1254 iscsit_put_tpg(tpg); \ 1255 return count; \ 1256out: \ 1257 kfree(buf); \ 1258 iscsit_put_tpg(tpg); \ 1259 return -EINVAL; \ 1260} 1261 1262#define TPG_PARAM_ATTR(_name, _mode) TF_TPG_PARAM_ATTR(iscsi, _name, _mode); 1263 1264DEF_TPG_PARAM(AuthMethod); 1265TPG_PARAM_ATTR(AuthMethod, S_IRUGO | S_IWUSR); 1266 1267DEF_TPG_PARAM(HeaderDigest); 1268TPG_PARAM_ATTR(HeaderDigest, S_IRUGO | S_IWUSR); 1269 1270DEF_TPG_PARAM(DataDigest); 1271TPG_PARAM_ATTR(DataDigest, S_IRUGO | S_IWUSR); 1272 1273DEF_TPG_PARAM(MaxConnections); 1274TPG_PARAM_ATTR(MaxConnections, S_IRUGO | S_IWUSR); 1275 1276DEF_TPG_PARAM(TargetAlias); 1277TPG_PARAM_ATTR(TargetAlias, S_IRUGO | S_IWUSR); 1278 1279DEF_TPG_PARAM(InitialR2T); 1280TPG_PARAM_ATTR(InitialR2T, S_IRUGO | S_IWUSR); 1281 1282DEF_TPG_PARAM(ImmediateData); 1283TPG_PARAM_ATTR(ImmediateData, S_IRUGO | S_IWUSR); 1284 1285DEF_TPG_PARAM(MaxRecvDataSegmentLength); 1286TPG_PARAM_ATTR(MaxRecvDataSegmentLength, S_IRUGO | S_IWUSR); 1287 1288DEF_TPG_PARAM(MaxXmitDataSegmentLength); 1289TPG_PARAM_ATTR(MaxXmitDataSegmentLength, S_IRUGO | S_IWUSR); 1290 1291DEF_TPG_PARAM(MaxBurstLength); 1292TPG_PARAM_ATTR(MaxBurstLength, S_IRUGO | S_IWUSR); 1293 1294DEF_TPG_PARAM(FirstBurstLength); 1295TPG_PARAM_ATTR(FirstBurstLength, S_IRUGO | S_IWUSR); 1296 1297DEF_TPG_PARAM(DefaultTime2Wait); 1298TPG_PARAM_ATTR(DefaultTime2Wait, S_IRUGO | S_IWUSR); 1299 1300DEF_TPG_PARAM(DefaultTime2Retain); 1301TPG_PARAM_ATTR(DefaultTime2Retain, S_IRUGO | S_IWUSR); 1302 1303DEF_TPG_PARAM(MaxOutstandingR2T); 1304TPG_PARAM_ATTR(MaxOutstandingR2T, S_IRUGO | S_IWUSR); 1305 1306DEF_TPG_PARAM(DataPDUInOrder); 1307TPG_PARAM_ATTR(DataPDUInOrder, S_IRUGO | S_IWUSR); 1308 1309DEF_TPG_PARAM(DataSequenceInOrder); 1310TPG_PARAM_ATTR(DataSequenceInOrder, S_IRUGO | S_IWUSR); 1311 1312DEF_TPG_PARAM(ErrorRecoveryLevel); 1313TPG_PARAM_ATTR(ErrorRecoveryLevel, S_IRUGO | S_IWUSR); 1314 1315DEF_TPG_PARAM(IFMarker); 1316TPG_PARAM_ATTR(IFMarker, S_IRUGO | S_IWUSR); 1317 1318DEF_TPG_PARAM(OFMarker); 1319TPG_PARAM_ATTR(OFMarker, S_IRUGO | S_IWUSR); 1320 1321DEF_TPG_PARAM(IFMarkInt); 1322TPG_PARAM_ATTR(IFMarkInt, S_IRUGO | S_IWUSR); 1323 1324DEF_TPG_PARAM(OFMarkInt); 1325TPG_PARAM_ATTR(OFMarkInt, S_IRUGO | S_IWUSR); 1326 1327static struct configfs_attribute *lio_target_tpg_param_attrs[] = { 1328 &iscsi_tpg_param_AuthMethod.attr, 1329 &iscsi_tpg_param_HeaderDigest.attr, 1330 &iscsi_tpg_param_DataDigest.attr, 1331 &iscsi_tpg_param_MaxConnections.attr, 1332 &iscsi_tpg_param_TargetAlias.attr, 1333 &iscsi_tpg_param_InitialR2T.attr, 1334 &iscsi_tpg_param_ImmediateData.attr, 1335 &iscsi_tpg_param_MaxRecvDataSegmentLength.attr, 1336 &iscsi_tpg_param_MaxXmitDataSegmentLength.attr, 1337 &iscsi_tpg_param_MaxBurstLength.attr, 1338 &iscsi_tpg_param_FirstBurstLength.attr, 1339 &iscsi_tpg_param_DefaultTime2Wait.attr, 1340 &iscsi_tpg_param_DefaultTime2Retain.attr, 1341 &iscsi_tpg_param_MaxOutstandingR2T.attr, 1342 &iscsi_tpg_param_DataPDUInOrder.attr, 1343 &iscsi_tpg_param_DataSequenceInOrder.attr, 1344 &iscsi_tpg_param_ErrorRecoveryLevel.attr, 1345 &iscsi_tpg_param_IFMarker.attr, 1346 &iscsi_tpg_param_OFMarker.attr, 1347 &iscsi_tpg_param_IFMarkInt.attr, 1348 &iscsi_tpg_param_OFMarkInt.attr, 1349 NULL, 1350}; 1351 1352/* End items for lio_target_tpg_param_cit */ 1353 1354/* Start items for lio_target_tpg_cit */ 1355 1356static ssize_t lio_target_tpg_show_enable( 1357 struct se_portal_group *se_tpg, 1358 char *page) 1359{ 1360 struct iscsi_portal_group *tpg = container_of(se_tpg, 1361 struct iscsi_portal_group, tpg_se_tpg); 1362 ssize_t len; 1363 1364 spin_lock(&tpg->tpg_state_lock); 1365 len = sprintf(page, "%d\n", 1366 (tpg->tpg_state == TPG_STATE_ACTIVE) ? 1 : 0); 1367 spin_unlock(&tpg->tpg_state_lock); 1368 1369 return len; 1370} 1371 1372static ssize_t lio_target_tpg_store_enable( 1373 struct se_portal_group *se_tpg, 1374 const char *page, 1375 size_t count) 1376{ 1377 struct iscsi_portal_group *tpg = container_of(se_tpg, 1378 struct iscsi_portal_group, tpg_se_tpg); 1379 u32 op; 1380 int ret; 1381 1382 ret = kstrtou32(page, 0, &op); 1383 if (ret) 1384 return ret; 1385 if ((op != 1) && (op != 0)) { 1386 pr_err("Illegal value for tpg_enable: %u\n", op); 1387 return -EINVAL; 1388 } 1389 1390 ret = iscsit_get_tpg(tpg); 1391 if (ret < 0) 1392 return -EINVAL; 1393 1394 if (op) { 1395 ret = iscsit_tpg_enable_portal_group(tpg); 1396 if (ret < 0) 1397 goto out; 1398 } else { 1399 /* 1400 * iscsit_tpg_disable_portal_group() assumes force=1 1401 */ 1402 ret = iscsit_tpg_disable_portal_group(tpg, 1); 1403 if (ret < 0) 1404 goto out; 1405 } 1406 1407 iscsit_put_tpg(tpg); 1408 return count; 1409out: 1410 iscsit_put_tpg(tpg); 1411 return -EINVAL; 1412} 1413 1414TF_TPG_BASE_ATTR(lio_target, enable, S_IRUGO | S_IWUSR); 1415 1416static ssize_t lio_target_tpg_show_dynamic_sessions( 1417 struct se_portal_group *se_tpg, 1418 char *page) 1419{ 1420 return target_show_dynamic_sessions(se_tpg, page); 1421} 1422 1423TF_TPG_BASE_ATTR_RO(lio_target, dynamic_sessions); 1424 1425static struct configfs_attribute *lio_target_tpg_attrs[] = { 1426 &lio_target_tpg_enable.attr, 1427 &lio_target_tpg_dynamic_sessions.attr, 1428 NULL, 1429}; 1430 1431/* End items for lio_target_tpg_cit */ 1432 1433/* Start items for lio_target_tiqn_cit */ 1434 1435static struct se_portal_group *lio_target_tiqn_addtpg( 1436 struct se_wwn *wwn, 1437 struct config_group *group, 1438 const char *name) 1439{ 1440 struct iscsi_portal_group *tpg; 1441 struct iscsi_tiqn *tiqn; 1442 char *tpgt_str; 1443 int ret; 1444 u16 tpgt; 1445 1446 tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn); 1447 /* 1448 * Only tpgt_# directory groups can be created below 1449 * target/iscsi/iqn.superturodiskarry/ 1450 */ 1451 tpgt_str = strstr(name, "tpgt_"); 1452 if (!tpgt_str) { 1453 pr_err("Unable to locate \"tpgt_#\" directory" 1454 " group\n"); 1455 return NULL; 1456 } 1457 tpgt_str += 5; /* Skip ahead of "tpgt_" */ 1458 ret = kstrtou16(tpgt_str, 0, &tpgt); 1459 if (ret) 1460 return NULL; 1461 1462 tpg = iscsit_alloc_portal_group(tiqn, tpgt); 1463 if (!tpg) 1464 return NULL; 1465 1466 ret = core_tpg_register(&iscsi_ops, wwn, &tpg->tpg_se_tpg, 1467 tpg, TRANSPORT_TPG_TYPE_NORMAL); 1468 if (ret < 0) 1469 return NULL; 1470 1471 ret = iscsit_tpg_add_portal_group(tiqn, tpg); 1472 if (ret != 0) 1473 goto out; 1474 1475 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn); 1476 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated TPG: %s\n", 1477 name); 1478 return &tpg->tpg_se_tpg; 1479out: 1480 core_tpg_deregister(&tpg->tpg_se_tpg); 1481 kfree(tpg); 1482 return NULL; 1483} 1484 1485static void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg) 1486{ 1487 struct iscsi_portal_group *tpg; 1488 struct iscsi_tiqn *tiqn; 1489 1490 tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); 1491 tiqn = tpg->tpg_tiqn; 1492 /* 1493 * iscsit_tpg_del_portal_group() assumes force=1 1494 */ 1495 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> Releasing TPG\n"); 1496 iscsit_tpg_del_portal_group(tiqn, tpg, 1); 1497} 1498 1499/* End items for lio_target_tiqn_cit */ 1500 1501/* Start LIO-Target TIQN struct contig_item lio_target_cit */ 1502 1503static ssize_t lio_target_wwn_show_attr_lio_version( 1504 struct target_fabric_configfs *tf, 1505 char *page) 1506{ 1507 return sprintf(page, "Datera Inc. iSCSI Target "ISCSIT_VERSION"\n"); 1508} 1509 1510TF_WWN_ATTR_RO(lio_target, lio_version); 1511 1512static struct configfs_attribute *lio_target_wwn_attrs[] = { 1513 &lio_target_wwn_lio_version.attr, 1514 NULL, 1515}; 1516 1517static struct se_wwn *lio_target_call_coreaddtiqn( 1518 struct target_fabric_configfs *tf, 1519 struct config_group *group, 1520 const char *name) 1521{ 1522 struct config_group *stats_cg; 1523 struct iscsi_tiqn *tiqn; 1524 1525 tiqn = iscsit_add_tiqn((unsigned char *)name); 1526 if (IS_ERR(tiqn)) 1527 return ERR_CAST(tiqn); 1528 /* 1529 * Setup struct iscsi_wwn_stat_grps for se_wwn->fabric_stat_group. 1530 */ 1531 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group; 1532 1533 stats_cg->default_groups = kmalloc(sizeof(struct config_group *) * 6, 1534 GFP_KERNEL); 1535 if (!stats_cg->default_groups) { 1536 pr_err("Unable to allocate memory for" 1537 " stats_cg->default_groups\n"); 1538 iscsit_del_tiqn(tiqn); 1539 return ERR_PTR(-ENOMEM); 1540 } 1541 1542 stats_cg->default_groups[0] = &tiqn->tiqn_stat_grps.iscsi_instance_group; 1543 stats_cg->default_groups[1] = &tiqn->tiqn_stat_grps.iscsi_sess_err_group; 1544 stats_cg->default_groups[2] = &tiqn->tiqn_stat_grps.iscsi_tgt_attr_group; 1545 stats_cg->default_groups[3] = &tiqn->tiqn_stat_grps.iscsi_login_stats_group; 1546 stats_cg->default_groups[4] = &tiqn->tiqn_stat_grps.iscsi_logout_stats_group; 1547 stats_cg->default_groups[5] = NULL; 1548 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_instance_group, 1549 "iscsi_instance", &iscsi_stat_instance_cit); 1550 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_sess_err_group, 1551 "iscsi_sess_err", &iscsi_stat_sess_err_cit); 1552 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_tgt_attr_group, 1553 "iscsi_tgt_attr", &iscsi_stat_tgt_attr_cit); 1554 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_login_stats_group, 1555 "iscsi_login_stats", &iscsi_stat_login_cit); 1556 config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_logout_stats_group, 1557 "iscsi_logout_stats", &iscsi_stat_logout_cit); 1558 1559 pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn); 1560 pr_debug("LIO_Target_ConfigFS: REGISTER -> Allocated Node:" 1561 " %s\n", name); 1562 return &tiqn->tiqn_wwn; 1563} 1564 1565static void lio_target_call_coredeltiqn( 1566 struct se_wwn *wwn) 1567{ 1568 struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn); 1569 struct config_item *df_item; 1570 struct config_group *stats_cg; 1571 int i; 1572 1573 stats_cg = &tiqn->tiqn_wwn.fabric_stat_group; 1574 for (i = 0; stats_cg->default_groups[i]; i++) { 1575 df_item = &stats_cg->default_groups[i]->cg_item; 1576 stats_cg->default_groups[i] = NULL; 1577 config_item_put(df_item); 1578 } 1579 kfree(stats_cg->default_groups); 1580 1581 pr_debug("LIO_Target_ConfigFS: DEREGISTER -> %s\n", 1582 tiqn->tiqn); 1583 iscsit_del_tiqn(tiqn); 1584} 1585 1586/* End LIO-Target TIQN struct contig_lio_target_cit */ 1587 1588/* Start lio_target_discovery_auth_cit */ 1589 1590#define DEF_DISC_AUTH_STR(name, flags) \ 1591 __DEF_NACL_AUTH_STR(disc, name, flags) \ 1592static ssize_t iscsi_disc_show_##name( \ 1593 struct target_fabric_configfs *tf, \ 1594 char *page) \ 1595{ \ 1596 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \ 1597 page); \ 1598} \ 1599static ssize_t iscsi_disc_store_##name( \ 1600 struct target_fabric_configfs *tf, \ 1601 const char *page, \ 1602 size_t count) \ 1603{ \ 1604 return __iscsi_disc_store_##name(&iscsit_global->discovery_acl, \ 1605 page, count); \ 1606} 1607 1608#define DEF_DISC_AUTH_INT(name) \ 1609 __DEF_NACL_AUTH_INT(disc, name) \ 1610static ssize_t iscsi_disc_show_##name( \ 1611 struct target_fabric_configfs *tf, \ 1612 char *page) \ 1613{ \ 1614 return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \ 1615 page); \ 1616} 1617 1618#define DISC_AUTH_ATTR(_name, _mode) TF_DISC_ATTR(iscsi, _name, _mode) 1619#define DISC_AUTH_ATTR_RO(_name) TF_DISC_ATTR_RO(iscsi, _name) 1620 1621/* 1622 * One-way authentication userid 1623 */ 1624DEF_DISC_AUTH_STR(userid, NAF_USERID_SET); 1625DISC_AUTH_ATTR(userid, S_IRUGO | S_IWUSR); 1626/* 1627 * One-way authentication password 1628 */ 1629DEF_DISC_AUTH_STR(password, NAF_PASSWORD_SET); 1630DISC_AUTH_ATTR(password, S_IRUGO | S_IWUSR); 1631/* 1632 * Enforce mutual authentication 1633 */ 1634DEF_DISC_AUTH_INT(authenticate_target); 1635DISC_AUTH_ATTR_RO(authenticate_target); 1636/* 1637 * Mutual authentication userid 1638 */ 1639DEF_DISC_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); 1640DISC_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR); 1641/* 1642 * Mutual authentication password 1643 */ 1644DEF_DISC_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); 1645DISC_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR); 1646 1647/* 1648 * enforce_discovery_auth 1649 */ 1650static ssize_t iscsi_disc_show_enforce_discovery_auth( 1651 struct target_fabric_configfs *tf, 1652 char *page) 1653{ 1654 struct iscsi_node_auth *discovery_auth = &iscsit_global->discovery_acl.node_auth; 1655 1656 return sprintf(page, "%d\n", discovery_auth->enforce_discovery_auth); 1657} 1658 1659static ssize_t iscsi_disc_store_enforce_discovery_auth( 1660 struct target_fabric_configfs *tf, 1661 const char *page, 1662 size_t count) 1663{ 1664 struct iscsi_param *param; 1665 struct iscsi_portal_group *discovery_tpg = iscsit_global->discovery_tpg; 1666 u32 op; 1667 int err; 1668 1669 err = kstrtou32(page, 0, &op); 1670 if (err) 1671 return -EINVAL; 1672 if ((op != 1) && (op != 0)) { 1673 pr_err("Illegal value for enforce_discovery_auth:" 1674 " %u\n", op); 1675 return -EINVAL; 1676 } 1677 1678 if (!discovery_tpg) { 1679 pr_err("iscsit_global->discovery_tpg is NULL\n"); 1680 return -EINVAL; 1681 } 1682 1683 param = iscsi_find_param_from_key(AUTHMETHOD, 1684 discovery_tpg->param_list); 1685 if (!param) 1686 return -EINVAL; 1687 1688 if (op) { 1689 /* 1690 * Reset the AuthMethod key to CHAP. 1691 */ 1692 if (iscsi_update_param_value(param, CHAP) < 0) 1693 return -EINVAL; 1694 1695 discovery_tpg->tpg_attrib.authentication = 1; 1696 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 1; 1697 pr_debug("LIO-CORE[0] Successfully enabled" 1698 " authentication enforcement for iSCSI" 1699 " Discovery TPG\n"); 1700 } else { 1701 /* 1702 * Reset the AuthMethod key to CHAP,None 1703 */ 1704 if (iscsi_update_param_value(param, "CHAP,None") < 0) 1705 return -EINVAL; 1706 1707 discovery_tpg->tpg_attrib.authentication = 0; 1708 iscsit_global->discovery_acl.node_auth.enforce_discovery_auth = 0; 1709 pr_debug("LIO-CORE[0] Successfully disabled" 1710 " authentication enforcement for iSCSI" 1711 " Discovery TPG\n"); 1712 } 1713 1714 return count; 1715} 1716 1717DISC_AUTH_ATTR(enforce_discovery_auth, S_IRUGO | S_IWUSR); 1718 1719static struct configfs_attribute *lio_target_discovery_auth_attrs[] = { 1720 &iscsi_disc_userid.attr, 1721 &iscsi_disc_password.attr, 1722 &iscsi_disc_authenticate_target.attr, 1723 &iscsi_disc_userid_mutual.attr, 1724 &iscsi_disc_password_mutual.attr, 1725 &iscsi_disc_enforce_discovery_auth.attr, 1726 NULL, 1727}; 1728 1729/* End lio_target_discovery_auth_cit */ 1730 1731/* Start functions for target_core_fabric_ops */ 1732 1733static char *iscsi_get_fabric_name(void) 1734{ 1735 return "iSCSI"; 1736} 1737 1738static u32 iscsi_get_task_tag(struct se_cmd *se_cmd) 1739{ 1740 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1741 1742 /* only used for printks or comparism with ->ref_task_tag */ 1743 return (__force u32)cmd->init_task_tag; 1744} 1745 1746static int iscsi_get_cmd_state(struct se_cmd *se_cmd) 1747{ 1748 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1749 1750 return cmd->i_state; 1751} 1752 1753static u32 lio_sess_get_index(struct se_session *se_sess) 1754{ 1755 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1756 1757 return sess->session_index; 1758} 1759 1760static u32 lio_sess_get_initiator_sid( 1761 struct se_session *se_sess, 1762 unsigned char *buf, 1763 u32 size) 1764{ 1765 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1766 /* 1767 * iSCSI Initiator Session Identifier from RFC-3720. 1768 */ 1769 return snprintf(buf, size, "%6phN", sess->isid); 1770} 1771 1772static int lio_queue_data_in(struct se_cmd *se_cmd) 1773{ 1774 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1775 1776 cmd->i_state = ISTATE_SEND_DATAIN; 1777 cmd->conn->conn_transport->iscsit_queue_data_in(cmd->conn, cmd); 1778 1779 return 0; 1780} 1781 1782static int lio_write_pending(struct se_cmd *se_cmd) 1783{ 1784 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1785 struct iscsi_conn *conn = cmd->conn; 1786 1787 if (!cmd->immediate_data && !cmd->unsolicited_data) 1788 return conn->conn_transport->iscsit_get_dataout(conn, cmd, false); 1789 1790 return 0; 1791} 1792 1793static int lio_write_pending_status(struct se_cmd *se_cmd) 1794{ 1795 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1796 int ret; 1797 1798 spin_lock_bh(&cmd->istate_lock); 1799 ret = !(cmd->cmd_flags & ICF_GOT_LAST_DATAOUT); 1800 spin_unlock_bh(&cmd->istate_lock); 1801 1802 return ret; 1803} 1804 1805static int lio_queue_status(struct se_cmd *se_cmd) 1806{ 1807 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1808 1809 cmd->i_state = ISTATE_SEND_STATUS; 1810 1811 if (cmd->se_cmd.scsi_status || cmd->sense_reason) { 1812 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); 1813 return 0; 1814 } 1815 cmd->conn->conn_transport->iscsit_queue_status(cmd->conn, cmd); 1816 1817 return 0; 1818} 1819 1820static void lio_queue_tm_rsp(struct se_cmd *se_cmd) 1821{ 1822 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1823 1824 cmd->i_state = ISTATE_SEND_TASKMGTRSP; 1825 iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); 1826} 1827 1828static void lio_aborted_task(struct se_cmd *se_cmd) 1829{ 1830 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1831 1832 cmd->conn->conn_transport->iscsit_aborted_task(cmd->conn, cmd); 1833} 1834 1835static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg) 1836{ 1837 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1838 1839 return &tpg->tpg_tiqn->tiqn[0]; 1840} 1841 1842static u16 lio_tpg_get_tag(struct se_portal_group *se_tpg) 1843{ 1844 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1845 1846 return tpg->tpgt; 1847} 1848 1849static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg) 1850{ 1851 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1852 1853 return tpg->tpg_attrib.default_cmdsn_depth; 1854} 1855 1856static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg) 1857{ 1858 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1859 1860 return tpg->tpg_attrib.generate_node_acls; 1861} 1862 1863static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg) 1864{ 1865 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1866 1867 return tpg->tpg_attrib.cache_dynamic_acls; 1868} 1869 1870static int lio_tpg_check_demo_mode_write_protect( 1871 struct se_portal_group *se_tpg) 1872{ 1873 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1874 1875 return tpg->tpg_attrib.demo_mode_write_protect; 1876} 1877 1878static int lio_tpg_check_prod_mode_write_protect( 1879 struct se_portal_group *se_tpg) 1880{ 1881 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1882 1883 return tpg->tpg_attrib.prod_mode_write_protect; 1884} 1885 1886static int lio_tpg_check_prot_fabric_only( 1887 struct se_portal_group *se_tpg) 1888{ 1889 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1890 /* 1891 * Only report fabric_prot_type if t10_pi has also been enabled 1892 * for incoming ib_isert sessions. 1893 */ 1894 if (!tpg->tpg_attrib.t10_pi) 1895 return 0; 1896 1897 return tpg->tpg_attrib.fabric_prot_type; 1898} 1899 1900static void lio_tpg_release_fabric_acl( 1901 struct se_portal_group *se_tpg, 1902 struct se_node_acl *se_acl) 1903{ 1904 struct iscsi_node_acl *acl = container_of(se_acl, 1905 struct iscsi_node_acl, se_node_acl); 1906 kfree(acl); 1907} 1908 1909/* 1910 * Called with spin_lock_irq(struct se_portal_group->session_lock) held 1911 * or not held. 1912 * 1913 * Also, this function calls iscsit_inc_session_usage_count() on the 1914 * struct iscsi_session in question. 1915 */ 1916static int lio_tpg_shutdown_session(struct se_session *se_sess) 1917{ 1918 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1919 struct se_portal_group *se_tpg = se_sess->se_tpg; 1920 bool local_lock = false; 1921 1922 if (!spin_is_locked(&se_tpg->session_lock)) { 1923 spin_lock_irq(&se_tpg->session_lock); 1924 local_lock = true; 1925 } 1926 1927 spin_lock(&sess->conn_lock); 1928 if (atomic_read(&sess->session_fall_back_to_erl0) || 1929 atomic_read(&sess->session_logout) || 1930 (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)) { 1931 spin_unlock(&sess->conn_lock); 1932 if (local_lock) 1933 spin_unlock_irq(&sess->conn_lock); 1934 return 0; 1935 } 1936 atomic_set(&sess->session_reinstatement, 1); 1937 spin_unlock(&sess->conn_lock); 1938 1939 iscsit_stop_time2retain_timer(sess); 1940 spin_unlock_irq(&se_tpg->session_lock); 1941 1942 iscsit_stop_session(sess, 1, 1); 1943 if (!local_lock) 1944 spin_lock_irq(&se_tpg->session_lock); 1945 1946 return 1; 1947} 1948 1949/* 1950 * Calls iscsit_dec_session_usage_count() as inverse of 1951 * lio_tpg_shutdown_session() 1952 */ 1953static void lio_tpg_close_session(struct se_session *se_sess) 1954{ 1955 struct iscsi_session *sess = se_sess->fabric_sess_ptr; 1956 /* 1957 * If the iSCSI Session for the iSCSI Initiator Node exists, 1958 * forcefully shutdown the iSCSI NEXUS. 1959 */ 1960 iscsit_close_session(sess); 1961} 1962 1963static u32 lio_tpg_get_inst_index(struct se_portal_group *se_tpg) 1964{ 1965 struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; 1966 1967 return tpg->tpg_tiqn->tiqn_index; 1968} 1969 1970static void lio_set_default_node_attributes(struct se_node_acl *se_acl) 1971{ 1972 struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl, 1973 se_node_acl); 1974 struct se_portal_group *se_tpg = se_acl->se_tpg; 1975 struct iscsi_portal_group *tpg = container_of(se_tpg, 1976 struct iscsi_portal_group, tpg_se_tpg); 1977 1978 acl->node_attrib.nacl = acl; 1979 iscsit_set_default_node_attribues(acl, tpg); 1980} 1981 1982static int lio_check_stop_free(struct se_cmd *se_cmd) 1983{ 1984 return target_put_sess_cmd(se_cmd); 1985} 1986 1987static void lio_release_cmd(struct se_cmd *se_cmd) 1988{ 1989 struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); 1990 1991 pr_debug("Entering lio_release_cmd for se_cmd: %p\n", se_cmd); 1992 iscsit_release_cmd(cmd); 1993} 1994 1995const struct target_core_fabric_ops iscsi_ops = { 1996 .module = THIS_MODULE, 1997 .name = "iscsi", 1998 .get_fabric_name = iscsi_get_fabric_name, 1999 .get_fabric_proto_ident = iscsi_get_fabric_proto_ident, 2000 .tpg_get_wwn = lio_tpg_get_endpoint_wwn, 2001 .tpg_get_tag = lio_tpg_get_tag, 2002 .tpg_get_default_depth = lio_tpg_get_default_depth, 2003 .tpg_get_pr_transport_id = iscsi_get_pr_transport_id, 2004 .tpg_get_pr_transport_id_len = iscsi_get_pr_transport_id_len, 2005 .tpg_parse_pr_out_transport_id = iscsi_parse_pr_out_transport_id, 2006 .tpg_check_demo_mode = lio_tpg_check_demo_mode, 2007 .tpg_check_demo_mode_cache = lio_tpg_check_demo_mode_cache, 2008 .tpg_check_demo_mode_write_protect = 2009 lio_tpg_check_demo_mode_write_protect, 2010 .tpg_check_prod_mode_write_protect = 2011 lio_tpg_check_prod_mode_write_protect, 2012 .tpg_check_prot_fabric_only = &lio_tpg_check_prot_fabric_only, 2013 .tpg_alloc_fabric_acl = lio_tpg_alloc_fabric_acl, 2014 .tpg_release_fabric_acl = lio_tpg_release_fabric_acl, 2015 .tpg_get_inst_index = lio_tpg_get_inst_index, 2016 .check_stop_free = lio_check_stop_free, 2017 .release_cmd = lio_release_cmd, 2018 .shutdown_session = lio_tpg_shutdown_session, 2019 .close_session = lio_tpg_close_session, 2020 .sess_get_index = lio_sess_get_index, 2021 .sess_get_initiator_sid = lio_sess_get_initiator_sid, 2022 .write_pending = lio_write_pending, 2023 .write_pending_status = lio_write_pending_status, 2024 .set_default_node_attributes = lio_set_default_node_attributes, 2025 .get_task_tag = iscsi_get_task_tag, 2026 .get_cmd_state = iscsi_get_cmd_state, 2027 .queue_data_in = lio_queue_data_in, 2028 .queue_status = lio_queue_status, 2029 .queue_tm_rsp = lio_queue_tm_rsp, 2030 .aborted_task = lio_aborted_task, 2031 .fabric_make_wwn = lio_target_call_coreaddtiqn, 2032 .fabric_drop_wwn = lio_target_call_coredeltiqn, 2033 .fabric_make_tpg = lio_target_tiqn_addtpg, 2034 .fabric_drop_tpg = lio_target_tiqn_deltpg, 2035 .fabric_make_np = lio_target_call_addnptotpg, 2036 .fabric_drop_np = lio_target_call_delnpfromtpg, 2037 .fabric_make_nodeacl = lio_target_make_nodeacl, 2038 .fabric_drop_nodeacl = lio_target_drop_nodeacl, 2039 2040 .tfc_discovery_attrs = lio_target_discovery_auth_attrs, 2041 .tfc_wwn_attrs = lio_target_wwn_attrs, 2042 .tfc_tpg_base_attrs = lio_target_tpg_attrs, 2043 .tfc_tpg_attrib_attrs = lio_target_tpg_attrib_attrs, 2044 .tfc_tpg_auth_attrs = lio_target_tpg_auth_attrs, 2045 .tfc_tpg_param_attrs = lio_target_tpg_param_attrs, 2046 .tfc_tpg_np_base_attrs = lio_target_portal_attrs, 2047 .tfc_tpg_nacl_base_attrs = lio_target_initiator_attrs, 2048 .tfc_tpg_nacl_attrib_attrs = lio_target_nacl_attrib_attrs, 2049 .tfc_tpg_nacl_auth_attrs = lio_target_nacl_auth_attrs, 2050 .tfc_tpg_nacl_param_attrs = lio_target_nacl_param_attrs, 2051}; 2052