1 /*- 2 * BSD LICENSE 3 * 4 * Copyright (C) 2008-2012 Daisuke Aoyama <aoyama@peach.ne.jp>. 5 * Copyright (c) Intel Corporation. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * * Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * * Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in 16 * the documentation and/or other materials provided with the 17 * distribution. 18 * * Neither the name of Intel Corporation nor the names of its 19 * contributors may be used to endorse or promote products derived 20 * from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 26 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 27 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 28 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 32 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 #include "spdk/stdinc.h" 36 37 #include "spdk/conf.h" 38 #include "spdk/sock.h" 39 #include "spdk/scsi.h" 40 41 #include "spdk_internal/log.h" 42 43 #include "iscsi/iscsi.h" 44 #include "iscsi/conn.h" 45 #include "iscsi/tgt_node.h" 46 #include "iscsi/portal_grp.h" 47 #include "iscsi/init_grp.h" 48 #include "iscsi/task.h" 49 50 #define MAX_TMPBUF 1024 51 #define MAX_MASKBUF 128 52 53 static bool 54 iscsi_ipv6_netmask_allow_addr(const char *netmask, const char *addr) 55 { 56 struct in6_addr in6_mask; 57 struct in6_addr in6_addr; 58 char mask[MAX_MASKBUF]; 59 const char *p; 60 size_t n; 61 int bits, bmask; 62 int i; 63 64 if (netmask[0] != '[') { 65 return false; 66 } 67 p = strchr(netmask, ']'); 68 if (p == NULL) { 69 return false; 70 } 71 n = p - (netmask + 1); 72 if (n + 1 > sizeof mask) { 73 return false; 74 } 75 76 memcpy(mask, netmask + 1, n); 77 mask[n] = '\0'; 78 p++; 79 80 if (p[0] == '/') { 81 bits = (int) strtol(p + 1, NULL, 10); 82 if (bits <= 0 || bits > 128) { 83 return false; 84 } 85 } else { 86 bits = 128; 87 } 88 89 #if 0 90 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "input %s\n", addr); 91 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "mask %s / %d\n", mask, bits); 92 #endif 93 94 /* presentation to network order binary */ 95 if (inet_pton(AF_INET6, mask, &in6_mask) <= 0 96 || inet_pton(AF_INET6, addr, &in6_addr) <= 0) { 97 return false; 98 } 99 100 /* check 128bits */ 101 for (i = 0; i < (bits / 8); i++) { 102 if (in6_mask.s6_addr[i] != in6_addr.s6_addr[i]) { 103 return false; 104 } 105 } 106 if (bits % 8) { 107 bmask = (0xffU << (8 - (bits % 8))) & 0xffU; 108 if ((in6_mask.s6_addr[i] & bmask) != (in6_addr.s6_addr[i] & bmask)) { 109 return false; 110 } 111 } 112 113 /* match */ 114 return true; 115 } 116 117 static bool 118 iscsi_ipv4_netmask_allow_addr(const char *netmask, const char *addr) 119 { 120 struct in_addr in4_mask; 121 struct in_addr in4_addr; 122 char mask[MAX_MASKBUF]; 123 const char *p; 124 uint32_t bmask; 125 size_t n; 126 int bits; 127 128 p = strchr(netmask, '/'); 129 if (p == NULL) { 130 p = netmask + strlen(netmask); 131 } 132 n = p - netmask; 133 if (n + 1 > sizeof mask) { 134 return false; 135 } 136 137 memcpy(mask, netmask, n); 138 mask[n] = '\0'; 139 140 if (p[0] == '/') { 141 bits = (int) strtol(p + 1, NULL, 10); 142 if (bits <= 0 || bits > 32) { 143 return false; 144 } 145 } else { 146 bits = 32; 147 } 148 149 /* presentation to network order binary */ 150 if (inet_pton(AF_INET, mask, &in4_mask) <= 0 151 || inet_pton(AF_INET, addr, &in4_addr) <= 0) { 152 return false; 153 } 154 155 /* check 32bits */ 156 bmask = (0xffffffffU << (32 - bits)) & 0xffffffffU; 157 if ((ntohl(in4_mask.s_addr) & bmask) != (ntohl(in4_addr.s_addr) & bmask)) { 158 return false; 159 } 160 161 /* match */ 162 return true; 163 } 164 165 static bool 166 iscsi_netmask_allow_addr(const char *netmask, const char *addr) 167 { 168 if (netmask == NULL || addr == NULL) { 169 return false; 170 } 171 if (strcasecmp(netmask, "ANY") == 0) { 172 return true; 173 } 174 if (netmask[0] == '[') { 175 /* IPv6 */ 176 if (iscsi_ipv6_netmask_allow_addr(netmask, addr)) { 177 return true; 178 } 179 } else { 180 /* IPv4 */ 181 if (iscsi_ipv4_netmask_allow_addr(netmask, addr)) { 182 return true; 183 } 184 } 185 return false; 186 } 187 188 static bool 189 iscsi_init_grp_allow_addr(struct spdk_iscsi_init_grp *igp, 190 const char *addr) 191 { 192 struct spdk_iscsi_initiator_netmask *imask; 193 194 TAILQ_FOREACH(imask, &igp->netmask_head, tailq) { 195 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "netmask=%s, addr=%s\n", 196 imask->mask, addr); 197 if (iscsi_netmask_allow_addr(imask->mask, addr)) { 198 return true; 199 } 200 } 201 return false; 202 } 203 204 static int 205 iscsi_init_grp_allow_iscsi_name(struct spdk_iscsi_init_grp *igp, 206 const char *iqn, bool *result) 207 { 208 struct spdk_iscsi_initiator_name *iname; 209 210 TAILQ_FOREACH(iname, &igp->initiator_head, tailq) { 211 /* denied if iqn is matched */ 212 if ((iname->name[0] == '!') 213 && (strcasecmp(&iname->name[1], "ANY") == 0 214 || strcasecmp(&iname->name[1], iqn) == 0)) { 215 *result = false; 216 return 0; 217 } 218 /* allowed if iqn is matched */ 219 if (strcasecmp(iname->name, "ANY") == 0 220 || strcasecmp(iname->name, iqn) == 0) { 221 *result = true; 222 return 0; 223 } 224 } 225 return -1; 226 } 227 228 static struct spdk_iscsi_pg_map * 229 iscsi_tgt_node_find_pg_map(struct spdk_iscsi_tgt_node *target, 230 struct spdk_iscsi_portal_grp *pg); 231 232 bool 233 spdk_iscsi_tgt_node_access(struct spdk_iscsi_conn *conn, 234 struct spdk_iscsi_tgt_node *target, const char *iqn, const char *addr) 235 { 236 struct spdk_iscsi_portal_grp *pg; 237 struct spdk_iscsi_pg_map *pg_map; 238 struct spdk_iscsi_ig_map *ig_map; 239 int rc; 240 bool allowed = false; 241 242 if (conn == NULL || target == NULL || iqn == NULL || addr == NULL) { 243 return false; 244 } 245 pg = conn->portal->group; 246 247 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "pg=%d, iqn=%s, addr=%s\n", 248 pg->tag, iqn, addr); 249 pg_map = iscsi_tgt_node_find_pg_map(target, pg); 250 if (pg_map == NULL) { 251 return false; 252 } 253 TAILQ_FOREACH(ig_map, &pg_map->ig_map_head, tailq) { 254 rc = iscsi_init_grp_allow_iscsi_name(ig_map->ig, iqn, &allowed); 255 if (rc == 0) { 256 if (allowed == false) { 257 goto denied; 258 } else { 259 if (iscsi_init_grp_allow_addr(ig_map->ig, addr)) { 260 return true; 261 } 262 } 263 } else { 264 /* netmask is denied in this initiator group */ 265 } 266 } 267 268 denied: 269 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "access denied from %s (%s) to %s (%s:%s,%d)\n", 270 iqn, addr, target->name, conn->portal->host, 271 conn->portal->port, conn->portal->group->tag); 272 return false; 273 } 274 275 static bool 276 iscsi_tgt_node_allow_iscsi_name(struct spdk_iscsi_tgt_node *target, const char *iqn) 277 { 278 struct spdk_iscsi_pg_map *pg_map; 279 struct spdk_iscsi_ig_map *ig_map; 280 int rc; 281 bool result = false; 282 283 if (target == NULL || iqn == NULL) { 284 return false; 285 } 286 287 TAILQ_FOREACH(pg_map, &target->pg_map_head, tailq) { 288 TAILQ_FOREACH(ig_map, &pg_map->ig_map_head, tailq) { 289 rc = iscsi_init_grp_allow_iscsi_name(ig_map->ig, iqn, &result); 290 if (rc == 0) { 291 return result; 292 } 293 } 294 } 295 296 return false; 297 } 298 299 int 300 spdk_iscsi_send_tgts(struct spdk_iscsi_conn *conn, const char *iiqn, 301 const char *iaddr, const char *tiqn, uint8_t *data, int alloc_len, 302 int data_len) 303 { 304 char buf[MAX_TMPBUF]; 305 struct spdk_iscsi_portal_grp *pg; 306 struct spdk_iscsi_pg_map *pg_map; 307 struct spdk_iscsi_portal *p; 308 struct spdk_iscsi_tgt_node *target; 309 char *host; 310 int total; 311 int len; 312 int rc; 313 314 if (conn == NULL) { 315 return 0; 316 } 317 318 total = data_len; 319 if (alloc_len < 1) { 320 return 0; 321 } 322 if (total > alloc_len) { 323 total = alloc_len; 324 data[total - 1] = '\0'; 325 return total; 326 } 327 328 if (alloc_len - total < 1) { 329 SPDK_ERRLOG("data space small %d\n", alloc_len); 330 return total; 331 } 332 333 pthread_mutex_lock(&g_spdk_iscsi.mutex); 334 TAILQ_FOREACH(target, &g_spdk_iscsi.target_head, tailq) { 335 if (strcasecmp(tiqn, "ALL") != 0 336 && strcasecmp(tiqn, target->name) != 0) { 337 continue; 338 } 339 rc = iscsi_tgt_node_allow_iscsi_name(target, iiqn); 340 if (rc == 0) { 341 continue; 342 } 343 344 /* DO SENDTARGETS */ 345 len = snprintf((char *) data + total, alloc_len - total, 346 "TargetName=%s", target->name); 347 total += len + 1; 348 349 /* write to data */ 350 TAILQ_FOREACH(pg_map, &target->pg_map_head, tailq) { 351 pg = pg_map->pg; 352 TAILQ_FOREACH(p, &pg->head, per_pg_tailq) { 353 if (alloc_len - total < 1) { 354 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 355 SPDK_ERRLOG("data space small %d\n", alloc_len); 356 return total; 357 } 358 host = p->host; 359 /* wildcard? */ 360 if (strcasecmp(host, "[::]") == 0 361 || strcasecmp(host, "0.0.0.0") == 0) { 362 if (spdk_sock_is_ipv6(conn->sock)) { 363 snprintf(buf, sizeof buf, "[%s]", 364 conn->target_addr); 365 host = buf; 366 } else if (spdk_sock_is_ipv4(conn->sock)) { 367 snprintf(buf, sizeof buf, "%s", 368 conn->target_addr); 369 host = buf; 370 } else { 371 /* skip portal for the family */ 372 continue; 373 } 374 } 375 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, 376 "TargetAddress=%s:%s,%d\n", 377 host, p->port, pg->tag); 378 len = snprintf((char *) data + total, 379 alloc_len - total, 380 "TargetAddress=%s:%s,%d", 381 host, p->port, pg->tag); 382 total += len + 1; 383 } 384 } 385 } 386 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 387 388 return total; 389 } 390 391 struct spdk_iscsi_tgt_node * 392 spdk_iscsi_find_tgt_node(const char *target_name) 393 { 394 struct spdk_iscsi_tgt_node *target; 395 396 if (target_name == NULL) { 397 return NULL; 398 } 399 TAILQ_FOREACH(target, &g_spdk_iscsi.target_head, tailq) { 400 if (strcasecmp(target_name, target->name) == 0) { 401 return target; 402 } 403 } 404 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "can't find target %s\n", target_name); 405 return NULL; 406 } 407 408 static int 409 iscsi_tgt_node_register(struct spdk_iscsi_tgt_node *target) 410 { 411 pthread_mutex_lock(&g_spdk_iscsi.mutex); 412 413 if (spdk_iscsi_find_tgt_node(target->name) != NULL) { 414 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 415 return -EEXIST; 416 } 417 418 TAILQ_INSERT_TAIL(&g_spdk_iscsi.target_head, target, tailq); 419 420 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 421 return 0; 422 } 423 424 static int 425 iscsi_tgt_node_unregister(struct spdk_iscsi_tgt_node *target) 426 { 427 struct spdk_iscsi_tgt_node *t; 428 429 TAILQ_FOREACH(t, &g_spdk_iscsi.target_head, tailq) { 430 if (t == target) { 431 TAILQ_REMOVE(&g_spdk_iscsi.target_head, t, tailq); 432 return 0; 433 } 434 } 435 436 return -1; 437 } 438 439 static struct spdk_iscsi_ig_map * 440 iscsi_pg_map_find_ig_map(struct spdk_iscsi_pg_map *pg_map, 441 struct spdk_iscsi_init_grp *ig) 442 { 443 struct spdk_iscsi_ig_map *ig_map; 444 445 TAILQ_FOREACH(ig_map, &pg_map->ig_map_head, tailq) { 446 if (ig_map->ig == ig) { 447 return ig_map; 448 } 449 } 450 451 return NULL; 452 } 453 454 static struct spdk_iscsi_ig_map * 455 iscsi_pg_map_add_ig_map(struct spdk_iscsi_pg_map *pg_map, 456 struct spdk_iscsi_init_grp *ig) 457 { 458 struct spdk_iscsi_ig_map *ig_map; 459 460 if (iscsi_pg_map_find_ig_map(pg_map, ig) != NULL) { 461 return NULL; 462 } 463 464 ig_map = malloc(sizeof(*ig_map)); 465 if (ig_map == NULL) { 466 return NULL; 467 } 468 469 ig_map->ig = ig; 470 ig->ref++; 471 pg_map->num_ig_maps++; 472 TAILQ_INSERT_TAIL(&pg_map->ig_map_head, ig_map, tailq); 473 474 return ig_map; 475 } 476 477 static void 478 _iscsi_pg_map_delete_ig_map(struct spdk_iscsi_pg_map *pg_map, 479 struct spdk_iscsi_ig_map *ig_map) 480 { 481 TAILQ_REMOVE(&pg_map->ig_map_head, ig_map, tailq); 482 pg_map->num_ig_maps--; 483 ig_map->ig->ref--; 484 free(ig_map); 485 } 486 487 static int 488 iscsi_pg_map_delete_ig_map(struct spdk_iscsi_pg_map *pg_map, 489 struct spdk_iscsi_init_grp *ig) 490 { 491 struct spdk_iscsi_ig_map *ig_map; 492 493 ig_map = iscsi_pg_map_find_ig_map(pg_map, ig); 494 if (ig_map == NULL) { 495 return -ENOENT; 496 } 497 498 _iscsi_pg_map_delete_ig_map(pg_map, ig_map); 499 return 0; 500 } 501 502 static void 503 iscsi_pg_map_delete_all_ig_maps(struct spdk_iscsi_pg_map *pg_map) 504 { 505 struct spdk_iscsi_ig_map *ig_map, *tmp; 506 507 TAILQ_FOREACH_SAFE(ig_map, &pg_map->ig_map_head, tailq, tmp) { 508 _iscsi_pg_map_delete_ig_map(pg_map, ig_map); 509 } 510 } 511 512 static struct spdk_iscsi_pg_map * 513 iscsi_tgt_node_find_pg_map(struct spdk_iscsi_tgt_node *target, 514 struct spdk_iscsi_portal_grp *pg) 515 { 516 struct spdk_iscsi_pg_map *pg_map; 517 518 TAILQ_FOREACH(pg_map, &target->pg_map_head, tailq) { 519 if (pg_map->pg == pg) { 520 return pg_map; 521 } 522 } 523 524 return NULL; 525 } 526 527 static struct spdk_iscsi_pg_map * 528 iscsi_tgt_node_add_pg_map(struct spdk_iscsi_tgt_node *target, 529 struct spdk_iscsi_portal_grp *pg) 530 { 531 struct spdk_iscsi_pg_map *pg_map; 532 char port_name[MAX_TMPBUF]; 533 int rc; 534 535 if (iscsi_tgt_node_find_pg_map(target, pg) != NULL) { 536 return NULL; 537 } 538 539 if (target->num_pg_maps >= SPDK_SCSI_DEV_MAX_PORTS) { 540 SPDK_ERRLOG("Number of PG maps is more than allowed (max=%d)\n", 541 SPDK_SCSI_DEV_MAX_PORTS); 542 return NULL; 543 } 544 545 pg_map = malloc(sizeof(*pg_map)); 546 if (pg_map == NULL) { 547 return NULL; 548 } 549 550 snprintf(port_name, sizeof(port_name), "%s,t,0x%4.4x", 551 spdk_scsi_dev_get_name(target->dev), pg->tag); 552 rc = spdk_scsi_dev_add_port(target->dev, pg->tag, port_name); 553 if (rc != 0) { 554 free(pg_map); 555 return NULL; 556 } 557 558 TAILQ_INIT(&pg_map->ig_map_head); 559 pg_map->num_ig_maps = 0; 560 pg->ref++; 561 pg_map->pg = pg; 562 target->num_pg_maps++; 563 TAILQ_INSERT_TAIL(&target->pg_map_head, pg_map, tailq); 564 565 return pg_map; 566 } 567 568 static void 569 _iscsi_tgt_node_delete_pg_map(struct spdk_iscsi_tgt_node *target, 570 struct spdk_iscsi_pg_map *pg_map) 571 { 572 TAILQ_REMOVE(&target->pg_map_head, pg_map, tailq); 573 target->num_pg_maps--; 574 pg_map->pg->ref--; 575 576 spdk_scsi_dev_delete_port(target->dev, pg_map->pg->tag); 577 578 free(pg_map); 579 } 580 581 static int 582 iscsi_tgt_node_delete_pg_map(struct spdk_iscsi_tgt_node *target, 583 struct spdk_iscsi_portal_grp *pg) 584 { 585 struct spdk_iscsi_pg_map *pg_map; 586 587 pg_map = iscsi_tgt_node_find_pg_map(target, pg); 588 if (pg_map == NULL) { 589 return -ENOENT; 590 } 591 592 if (pg_map->num_ig_maps > 0) { 593 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "delete %d ig_maps forcefully\n", 594 pg_map->num_ig_maps); 595 } 596 597 iscsi_pg_map_delete_all_ig_maps(pg_map); 598 _iscsi_tgt_node_delete_pg_map(target, pg_map); 599 return 0; 600 } 601 602 static void 603 iscsi_tgt_node_delete_ig_maps(struct spdk_iscsi_tgt_node *target, 604 struct spdk_iscsi_init_grp *ig) 605 { 606 struct spdk_iscsi_pg_map *pg_map, *tmp; 607 608 TAILQ_FOREACH_SAFE(pg_map, &target->pg_map_head, tailq, tmp) { 609 iscsi_pg_map_delete_ig_map(pg_map, ig); 610 if (pg_map->num_ig_maps == 0) { 611 _iscsi_tgt_node_delete_pg_map(target, pg_map); 612 } 613 } 614 } 615 616 static void 617 iscsi_tgt_node_delete_all_pg_maps(struct spdk_iscsi_tgt_node *target) 618 { 619 struct spdk_iscsi_pg_map *pg_map, *tmp; 620 621 TAILQ_FOREACH_SAFE(pg_map, &target->pg_map_head, tailq, tmp) { 622 iscsi_pg_map_delete_all_ig_maps(pg_map); 623 _iscsi_tgt_node_delete_pg_map(target, pg_map); 624 } 625 } 626 627 static void 628 iscsi_tgt_node_destruct(struct spdk_iscsi_tgt_node *target) 629 { 630 if (target == NULL) { 631 return; 632 } 633 634 if (target->destructed) { 635 SPDK_ERRLOG("Destructing %s is already started\n", target->name); 636 return; 637 } 638 639 target->destructed = true; 640 641 spdk_scsi_dev_destruct(target->dev); 642 643 free(target->name); 644 free(target->alias); 645 646 pthread_mutex_lock(&g_spdk_iscsi.mutex); 647 iscsi_tgt_node_delete_all_pg_maps(target); 648 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 649 650 pthread_mutex_destroy(&target->mutex); 651 free(target); 652 } 653 654 static int 655 iscsi_tgt_node_delete_pg_ig_map(struct spdk_iscsi_tgt_node *target, 656 int pg_tag, int ig_tag) 657 { 658 struct spdk_iscsi_portal_grp *pg; 659 struct spdk_iscsi_init_grp *ig; 660 struct spdk_iscsi_pg_map *pg_map; 661 struct spdk_iscsi_ig_map *ig_map; 662 663 pg = spdk_iscsi_portal_grp_find_by_tag(pg_tag); 664 if (pg == NULL) { 665 SPDK_ERRLOG("%s: PortalGroup%d not found\n", target->name, pg_tag); 666 return -ENOENT; 667 } 668 ig = spdk_iscsi_init_grp_find_by_tag(ig_tag); 669 if (ig == NULL) { 670 SPDK_ERRLOG("%s: InitiatorGroup%d not found\n", target->name, ig_tag); 671 return -ENOENT; 672 } 673 674 pg_map = iscsi_tgt_node_find_pg_map(target, pg); 675 if (pg_map == NULL) { 676 SPDK_ERRLOG("%s: PortalGroup%d is not mapped\n", target->name, pg_tag); 677 return -ENOENT; 678 } 679 ig_map = iscsi_pg_map_find_ig_map(pg_map, ig); 680 if (ig_map == NULL) { 681 SPDK_ERRLOG("%s: InitiatorGroup%d is not mapped\n", target->name, pg_tag); 682 return -ENOENT; 683 } 684 685 _iscsi_pg_map_delete_ig_map(pg_map, ig_map); 686 if (pg_map->num_ig_maps == 0) { 687 _iscsi_tgt_node_delete_pg_map(target, pg_map); 688 } 689 690 return 0; 691 } 692 693 static int 694 iscsi_tgt_node_add_pg_ig_map(struct spdk_iscsi_tgt_node *target, 695 int pg_tag, int ig_tag) 696 { 697 struct spdk_iscsi_portal_grp *pg; 698 struct spdk_iscsi_pg_map *pg_map; 699 struct spdk_iscsi_init_grp *ig; 700 struct spdk_iscsi_ig_map *ig_map; 701 bool new_pg_map = false; 702 703 pg = spdk_iscsi_portal_grp_find_by_tag(pg_tag); 704 if (pg == NULL) { 705 SPDK_ERRLOG("%s: PortalGroup%d not found\n", target->name, pg_tag); 706 return -ENOENT; 707 } 708 ig = spdk_iscsi_init_grp_find_by_tag(ig_tag); 709 if (ig == NULL) { 710 SPDK_ERRLOG("%s: InitiatorGroup%d not found\n", target->name, ig_tag); 711 return -ENOENT; 712 } 713 714 /* get existing pg_map or create new pg_map and add it to target */ 715 pg_map = iscsi_tgt_node_find_pg_map(target, pg); 716 if (pg_map == NULL) { 717 pg_map = iscsi_tgt_node_add_pg_map(target, pg); 718 if (pg_map == NULL) { 719 goto failed; 720 } 721 new_pg_map = true; 722 } 723 724 /* create new ig_map and add it to pg_map */ 725 ig_map = iscsi_pg_map_add_ig_map(pg_map, ig); 726 if (ig_map == NULL) { 727 goto failed; 728 } 729 730 return 0; 731 732 failed: 733 if (new_pg_map) { 734 _iscsi_tgt_node_delete_pg_map(target, pg_map); 735 } 736 737 return -1; 738 } 739 740 int 741 spdk_iscsi_tgt_node_add_pg_ig_maps(struct spdk_iscsi_tgt_node *target, 742 int *pg_tag_list, int *ig_tag_list, uint16_t num_maps) 743 { 744 uint16_t i; 745 int rc; 746 747 pthread_mutex_lock(&g_spdk_iscsi.mutex); 748 for (i = 0; i < num_maps; i++) { 749 rc = iscsi_tgt_node_add_pg_ig_map(target, pg_tag_list[i], 750 ig_tag_list[i]); 751 if (rc != 0) { 752 SPDK_ERRLOG("could not add map to target\n"); 753 goto invalid; 754 } 755 } 756 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 757 return 0; 758 759 invalid: 760 for (; i > 0; --i) { 761 iscsi_tgt_node_delete_pg_ig_map(target, pg_tag_list[i - 1], 762 ig_tag_list[i - 1]); 763 } 764 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 765 return -1; 766 } 767 768 int 769 spdk_iscsi_tgt_node_delete_pg_ig_maps(struct spdk_iscsi_tgt_node *target, 770 int *pg_tag_list, int *ig_tag_list, uint16_t num_maps) 771 { 772 uint16_t i; 773 int rc; 774 775 pthread_mutex_lock(&g_spdk_iscsi.mutex); 776 for (i = 0; i < num_maps; i++) { 777 rc = iscsi_tgt_node_delete_pg_ig_map(target, pg_tag_list[i], 778 ig_tag_list[i]); 779 if (rc != 0) { 780 SPDK_ERRLOG("could not delete map from target\n"); 781 goto invalid; 782 } 783 } 784 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 785 return 0; 786 787 invalid: 788 for (; i > 0; --i) { 789 rc = iscsi_tgt_node_add_pg_ig_map(target, pg_tag_list[i - 1], 790 ig_tag_list[i - 1]); 791 if (rc != 0) { 792 iscsi_tgt_node_delete_all_pg_maps(target); 793 break; 794 } 795 } 796 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 797 return -1; 798 } 799 800 static int 801 check_iscsi_name(const char *name) 802 { 803 const unsigned char *up = (const unsigned char *) name; 804 size_t n; 805 806 /* valid iSCSI name no larger than 223 bytes */ 807 if (strlen(name) > MAX_TARGET_NAME) { 808 return -1; 809 } 810 811 /* valid iSCSI name? */ 812 for (n = 0; up[n] != 0; n++) { 813 if (up[n] > 0x00U && up[n] <= 0x2cU) { 814 return -1; 815 } 816 if (up[n] == 0x2fU) { 817 return -1; 818 } 819 if (up[n] >= 0x3bU && up[n] <= 0x40U) { 820 return -1; 821 } 822 if (up[n] >= 0x5bU && up[n] <= 0x60U) { 823 return -1; 824 } 825 if (up[n] >= 0x7bU && up[n] <= 0x7fU) { 826 return -1; 827 } 828 if (isspace(up[n])) { 829 return -1; 830 } 831 } 832 /* valid format? */ 833 if (strncasecmp(name, "iqn.", 4) == 0) { 834 /* iqn.YYYY-MM.reversed.domain.name */ 835 if (!isdigit(up[4]) || !isdigit(up[5]) || !isdigit(up[6]) 836 || !isdigit(up[7]) || up[8] != '-' || !isdigit(up[9]) 837 || !isdigit(up[10]) || up[11] != '.') { 838 SPDK_ERRLOG("invalid iqn format. " 839 "expect \"iqn.YYYY-MM.reversed.domain.name\"\n"); 840 return -1; 841 } 842 } else if (strncasecmp(name, "eui.", 4) == 0) { 843 /* EUI-64 -> 16bytes */ 844 /* XXX */ 845 } else if (strncasecmp(name, "naa.", 4) == 0) { 846 /* 64bit -> 16bytes, 128bit -> 32bytes */ 847 /* XXX */ 848 } 849 /* OK */ 850 return 0; 851 } 852 853 bool 854 spdk_iscsi_check_chap_params(bool disable, bool require, bool mutual, int group) 855 { 856 if (group < 0) { 857 SPDK_ERRLOG("Invalid auth group ID (%d)\n", group); 858 return false; 859 } 860 if ((!disable && !require && !mutual) || /* Auto */ 861 (disable && !require && !mutual) || /* None */ 862 (!disable && require && !mutual) || /* CHAP */ 863 (!disable && require && mutual)) { /* CHAP Mutual */ 864 return true; 865 } 866 SPDK_ERRLOG("Invalid combination of CHAP params (d=%d,r=%d,m=%d)\n", 867 disable, require, mutual); 868 return false; 869 } 870 871 _spdk_iscsi_tgt_node * 872 spdk_iscsi_tgt_node_construct(int target_index, 873 const char *name, const char *alias, 874 int *pg_tag_list, int *ig_tag_list, uint16_t num_maps, 875 const char *bdev_name_list[], int *lun_id_list, int num_luns, 876 int queue_depth, 877 bool disable_chap, bool require_chap, bool mutual_chap, int chap_group, 878 bool header_digest, bool data_digest) 879 { 880 char fullname[MAX_TMPBUF]; 881 struct spdk_iscsi_tgt_node *target; 882 int rc; 883 884 if (!spdk_iscsi_check_chap_params(disable_chap, require_chap, 885 mutual_chap, chap_group)) { 886 return NULL; 887 } 888 889 if (num_maps == 0) { 890 SPDK_ERRLOG("num_maps = 0\n"); 891 return NULL; 892 } 893 894 if (name == NULL) { 895 SPDK_ERRLOG("TargetName not found\n"); 896 return NULL; 897 } 898 899 if (strncasecmp(name, "iqn.", 4) != 0 900 && strncasecmp(name, "eui.", 4) != 0 901 && strncasecmp(name, "naa.", 4) != 0) { 902 snprintf(fullname, sizeof(fullname), "%s:%s", g_spdk_iscsi.nodebase, name); 903 } else { 904 snprintf(fullname, sizeof(fullname), "%s", name); 905 } 906 907 if (check_iscsi_name(fullname) != 0) { 908 SPDK_ERRLOG("TargetName %s contains an invalid character or format.\n", 909 name); 910 return NULL; 911 } 912 913 target = malloc(sizeof(*target)); 914 if (!target) { 915 SPDK_ERRLOG("could not allocate target\n"); 916 return NULL; 917 } 918 919 memset(target, 0, sizeof(*target)); 920 921 rc = pthread_mutex_init(&target->mutex, NULL); 922 if (rc != 0) { 923 SPDK_ERRLOG("tgt_node%d: mutex_init() failed\n", target->num); 924 iscsi_tgt_node_destruct(target); 925 return NULL; 926 } 927 928 target->num = target_index; 929 930 target->name = strdup(fullname); 931 if (!target->name) { 932 SPDK_ERRLOG("Could not allocate TargetName\n"); 933 iscsi_tgt_node_destruct(target); 934 return NULL; 935 } 936 937 if (alias == NULL) { 938 target->alias = NULL; 939 } else { 940 target->alias = strdup(alias); 941 if (!target->alias) { 942 SPDK_ERRLOG("Could not allocate TargetAlias\n"); 943 iscsi_tgt_node_destruct(target); 944 return NULL; 945 } 946 } 947 948 target->dev = spdk_scsi_dev_construct(fullname, bdev_name_list, lun_id_list, num_luns, 949 SPDK_SPC_PROTOCOL_IDENTIFIER_ISCSI, NULL, NULL); 950 if (!target->dev) { 951 SPDK_ERRLOG("Could not construct SCSI device\n"); 952 iscsi_tgt_node_destruct(target); 953 return NULL; 954 } 955 956 TAILQ_INIT(&target->pg_map_head); 957 rc = spdk_iscsi_tgt_node_add_pg_ig_maps(target, pg_tag_list, ig_tag_list, num_maps); 958 if (rc != 0) { 959 SPDK_ERRLOG("could not add map to target\n"); 960 iscsi_tgt_node_destruct(target); 961 return NULL; 962 } 963 964 target->disable_chap = disable_chap; 965 target->require_chap = require_chap; 966 target->mutual_chap = mutual_chap; 967 target->chap_group = chap_group; 968 target->header_digest = header_digest; 969 target->data_digest = data_digest; 970 971 if (queue_depth > 0 && ((uint32_t)queue_depth <= g_spdk_iscsi.MaxQueueDepth)) { 972 target->queue_depth = queue_depth; 973 } else { 974 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "QueueDepth %d is invalid and %d is used instead.\n", 975 queue_depth, g_spdk_iscsi.MaxQueueDepth); 976 target->queue_depth = g_spdk_iscsi.MaxQueueDepth; 977 } 978 979 rc = iscsi_tgt_node_register(target); 980 if (rc != 0) { 981 SPDK_ERRLOG("register target is failed\n"); 982 iscsi_tgt_node_destruct(target); 983 return NULL; 984 } 985 986 return target; 987 } 988 989 static int 990 iscsi_parse_tgt_node(struct spdk_conf_section *sp) 991 { 992 char buf[MAX_TMPBUF]; 993 struct spdk_iscsi_tgt_node *target; 994 int pg_tag_list[MAX_TARGET_MAP], ig_tag_list[MAX_TARGET_MAP]; 995 int num_target_maps; 996 const char *alias, *pg_tag, *ig_tag; 997 const char *ag_tag; 998 const char *val, *name; 999 int target_num, chap_group, pg_tag_i, ig_tag_i; 1000 bool header_digest, data_digest; 1001 bool disable_chap, require_chap, mutual_chap; 1002 int i; 1003 int lun_id_list[SPDK_SCSI_DEV_MAX_LUN]; 1004 const char *bdev_name_list[SPDK_SCSI_DEV_MAX_LUN]; 1005 int num_luns, queue_depth; 1006 1007 target_num = spdk_conf_section_get_num(sp); 1008 1009 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "add unit %d\n", target_num); 1010 1011 data_digest = false; 1012 header_digest = false; 1013 1014 name = spdk_conf_section_get_val(sp, "TargetName"); 1015 1016 if (name == NULL) { 1017 SPDK_ERRLOG("tgt_node%d: TargetName not found\n", target_num); 1018 return -1; 1019 } 1020 1021 alias = spdk_conf_section_get_val(sp, "TargetAlias"); 1022 1023 /* Setup initiator and portal group mapping */ 1024 val = spdk_conf_section_get_val(sp, "Mapping"); 1025 if (val == NULL) { 1026 /* no map */ 1027 SPDK_ERRLOG("tgt_node%d: no Mapping\n", target_num); 1028 return -1; 1029 } 1030 1031 for (i = 0; i < MAX_TARGET_MAP; i++) { 1032 val = spdk_conf_section_get_nmval(sp, "Mapping", i, 0); 1033 if (val == NULL) { 1034 break; 1035 } 1036 pg_tag = spdk_conf_section_get_nmval(sp, "Mapping", i, 0); 1037 ig_tag = spdk_conf_section_get_nmval(sp, "Mapping", i, 1); 1038 if (pg_tag == NULL || ig_tag == NULL) { 1039 SPDK_ERRLOG("tgt_node%d: mapping error\n", target_num); 1040 return -1; 1041 } 1042 if (strncasecmp(pg_tag, "PortalGroup", 1043 strlen("PortalGroup")) != 0 1044 || sscanf(pg_tag, "%*[^0-9]%d", &pg_tag_i) != 1) { 1045 SPDK_ERRLOG("tgt_node%d: mapping portal error\n", target_num); 1046 return -1; 1047 } 1048 if (strncasecmp(ig_tag, "InitiatorGroup", 1049 strlen("InitiatorGroup")) != 0 1050 || sscanf(ig_tag, "%*[^0-9]%d", &ig_tag_i) != 1) { 1051 SPDK_ERRLOG("tgt_node%d: mapping initiator error\n", target_num); 1052 return -1; 1053 } 1054 if (pg_tag_i < 1 || ig_tag_i < 1) { 1055 SPDK_ERRLOG("tgt_node%d: invalid group tag\n", target_num); 1056 return -1; 1057 } 1058 pg_tag_list[i] = pg_tag_i; 1059 ig_tag_list[i] = ig_tag_i; 1060 } 1061 1062 num_target_maps = i; 1063 1064 /* Setup AuthMethod */ 1065 val = spdk_conf_section_get_val(sp, "AuthMethod"); 1066 disable_chap = false; 1067 require_chap = false; 1068 mutual_chap = false; 1069 if (val != NULL) { 1070 for (i = 0; ; i++) { 1071 val = spdk_conf_section_get_nmval(sp, "AuthMethod", 0, i); 1072 if (val == NULL) { 1073 break; 1074 } 1075 if (strcasecmp(val, "CHAP") == 0) { 1076 require_chap = true; 1077 } else if (strcasecmp(val, "Mutual") == 0) { 1078 mutual_chap = true; 1079 } else if (strcasecmp(val, "Auto") == 0) { 1080 disable_chap = false; 1081 require_chap = false; 1082 mutual_chap = false; 1083 } else if (strcasecmp(val, "None") == 0) { 1084 disable_chap = true; 1085 require_chap = false; 1086 mutual_chap = false; 1087 } else { 1088 SPDK_ERRLOG("tgt_node%d: unknown auth\n", target_num); 1089 return -1; 1090 } 1091 } 1092 if (mutual_chap && !require_chap) { 1093 SPDK_ERRLOG("tgt_node%d: Mutual but not CHAP\n", target_num); 1094 return -1; 1095 } 1096 } 1097 if (disable_chap) { 1098 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "AuthMethod None\n"); 1099 } else if (!require_chap) { 1100 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "AuthMethod Auto\n"); 1101 } else { 1102 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "AuthMethod CHAP %s\n", 1103 mutual_chap ? "Mutual" : ""); 1104 } 1105 1106 val = spdk_conf_section_get_val(sp, "AuthGroup"); 1107 if (val == NULL) { 1108 chap_group = 0; 1109 } else { 1110 ag_tag = val; 1111 if (strcasecmp(ag_tag, "None") == 0) { 1112 chap_group = 0; 1113 } else { 1114 if (strncasecmp(ag_tag, "AuthGroup", 1115 strlen("AuthGroup")) != 0 1116 || sscanf(ag_tag, "%*[^0-9]%d", &chap_group) != 1) { 1117 SPDK_ERRLOG("tgt_node%d: auth group error\n", target_num); 1118 return -1; 1119 } 1120 if (chap_group == 0) { 1121 SPDK_ERRLOG("tgt_node%d: invalid auth group 0\n", target_num); 1122 return -1; 1123 } 1124 } 1125 } 1126 if (chap_group == 0) { 1127 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "AuthGroup None\n"); 1128 } else { 1129 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "AuthGroup AuthGroup%d\n", chap_group); 1130 } 1131 1132 val = spdk_conf_section_get_val(sp, "UseDigest"); 1133 if (val != NULL) { 1134 for (i = 0; ; i++) { 1135 val = spdk_conf_section_get_nmval(sp, "UseDigest", 0, i); 1136 if (val == NULL) { 1137 break; 1138 } 1139 if (strcasecmp(val, "Header") == 0) { 1140 header_digest = true; 1141 } else if (strcasecmp(val, "Data") == 0) { 1142 data_digest = true; 1143 } else if (strcasecmp(val, "Auto") == 0) { 1144 header_digest = false; 1145 data_digest = false; 1146 } else { 1147 SPDK_ERRLOG("tgt_node%d: unknown digest\n", target_num); 1148 return -1; 1149 } 1150 } 1151 } 1152 if (!header_digest && !data_digest) { 1153 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "UseDigest Auto\n"); 1154 } else { 1155 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "UseDigest %s %s\n", 1156 header_digest ? "Header" : "", 1157 data_digest ? "Data" : ""); 1158 } 1159 1160 val = spdk_conf_section_get_val(sp, "QueueDepth"); 1161 if (val == NULL) { 1162 queue_depth = g_spdk_iscsi.MaxQueueDepth; 1163 } else { 1164 queue_depth = (int) strtol(val, NULL, 10); 1165 } 1166 1167 num_luns = 0; 1168 1169 for (i = 0; i < SPDK_SCSI_DEV_MAX_LUN; i++) { 1170 snprintf(buf, sizeof(buf), "LUN%d", i); 1171 val = spdk_conf_section_get_val(sp, buf); 1172 if (val == NULL) { 1173 continue; 1174 } 1175 1176 bdev_name_list[num_luns] = val; 1177 lun_id_list[num_luns] = i; 1178 num_luns++; 1179 } 1180 1181 if (num_luns == 0) { 1182 SPDK_ERRLOG("tgt_node%d: No LUN specified for target %s.\n", target_num, name); 1183 return -1; 1184 } 1185 1186 target = spdk_iscsi_tgt_node_construct(target_num, name, alias, 1187 pg_tag_list, ig_tag_list, num_target_maps, 1188 bdev_name_list, lun_id_list, num_luns, queue_depth, 1189 disable_chap, require_chap, mutual_chap, chap_group, 1190 header_digest, data_digest); 1191 1192 if (target == NULL) { 1193 SPDK_ERRLOG("tgt_node%d: add_iscsi_target_node error\n", target_num); 1194 return -1; 1195 } 1196 1197 for (i = 0; i < SPDK_SCSI_DEV_MAX_LUN; i++) { 1198 struct spdk_scsi_lun *lun = spdk_scsi_dev_get_lun(target->dev, i); 1199 1200 if (lun) { 1201 SPDK_INFOLOG(SPDK_LOG_ISCSI, "device %d: LUN%d %s\n", 1202 spdk_scsi_dev_get_id(target->dev), 1203 spdk_scsi_lun_get_id(lun), 1204 spdk_scsi_lun_get_bdev_name(lun)); 1205 } 1206 } 1207 1208 return 0; 1209 } 1210 1211 int spdk_iscsi_parse_tgt_nodes(void) 1212 { 1213 struct spdk_conf_section *sp; 1214 int rc; 1215 1216 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "spdk_iscsi_parse_tgt_nodes\n"); 1217 1218 sp = spdk_conf_first_section(NULL); 1219 while (sp != NULL) { 1220 if (spdk_conf_section_match_prefix(sp, "TargetNode")) { 1221 int tag = spdk_conf_section_get_num(sp); 1222 1223 if (tag > SPDK_TN_TAG_MAX) { 1224 SPDK_ERRLOG("tag %d is invalid\n", tag); 1225 return -1; 1226 } 1227 rc = iscsi_parse_tgt_node(sp); 1228 if (rc < 0) { 1229 SPDK_ERRLOG("spdk_iscsi_parse_tgt_node() failed\n"); 1230 return -1; 1231 } 1232 } 1233 sp = spdk_conf_next_section(sp); 1234 } 1235 return 0; 1236 } 1237 1238 void 1239 spdk_iscsi_shutdown_tgt_nodes(void) 1240 { 1241 struct spdk_iscsi_tgt_node *target; 1242 1243 pthread_mutex_lock(&g_spdk_iscsi.mutex); 1244 while (!TAILQ_EMPTY(&g_spdk_iscsi.target_head)) { 1245 target = TAILQ_FIRST(&g_spdk_iscsi.target_head); 1246 TAILQ_REMOVE(&g_spdk_iscsi.target_head, target, tailq); 1247 1248 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 1249 1250 iscsi_tgt_node_destruct(target); 1251 1252 pthread_mutex_lock(&g_spdk_iscsi.mutex); 1253 } 1254 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 1255 } 1256 1257 int 1258 spdk_iscsi_shutdown_tgt_node_by_name(const char *target_name) 1259 { 1260 struct spdk_iscsi_tgt_node *target; 1261 1262 pthread_mutex_lock(&g_spdk_iscsi.mutex); 1263 target = spdk_iscsi_find_tgt_node(target_name); 1264 if (target != NULL) { 1265 iscsi_tgt_node_unregister(target); 1266 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 1267 1268 iscsi_tgt_node_destruct(target); 1269 1270 return 0; 1271 } 1272 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 1273 1274 return -ENOENT; 1275 } 1276 1277 bool 1278 spdk_iscsi_tgt_node_is_destructed(struct spdk_iscsi_tgt_node *target) 1279 { 1280 return target->destructed; 1281 } 1282 1283 int 1284 spdk_iscsi_tgt_node_cleanup_luns(struct spdk_iscsi_conn *conn, 1285 struct spdk_iscsi_tgt_node *target) 1286 { 1287 int i; 1288 struct spdk_iscsi_task *task; 1289 1290 for (i = 0; i < SPDK_SCSI_DEV_MAX_LUN; i++) { 1291 struct spdk_scsi_lun *lun = spdk_scsi_dev_get_lun(target->dev, i); 1292 1293 if (!lun) { 1294 continue; 1295 } 1296 1297 /* we create a fake management task per LUN to cleanup */ 1298 task = spdk_iscsi_task_get(conn, NULL, spdk_iscsi_task_mgmt_cpl); 1299 if (!task) { 1300 SPDK_ERRLOG("Unable to acquire task\n"); 1301 return -1; 1302 } 1303 1304 task->scsi.target_port = conn->target_port; 1305 task->scsi.initiator_port = conn->initiator_port; 1306 task->scsi.lun = lun; 1307 1308 spdk_iscsi_op_abort_task_set(task, SPDK_SCSI_TASK_FUNC_LUN_RESET); 1309 } 1310 1311 return 0; 1312 } 1313 1314 void spdk_iscsi_tgt_node_delete_map(struct spdk_iscsi_portal_grp *portal_group, 1315 struct spdk_iscsi_init_grp *initiator_group) 1316 { 1317 struct spdk_iscsi_tgt_node *target; 1318 1319 pthread_mutex_lock(&g_spdk_iscsi.mutex); 1320 TAILQ_FOREACH(target, &g_spdk_iscsi.target_head, tailq) { 1321 if (portal_group) { 1322 iscsi_tgt_node_delete_pg_map(target, portal_group); 1323 } 1324 if (initiator_group) { 1325 iscsi_tgt_node_delete_ig_maps(target, initiator_group); 1326 } 1327 } 1328 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 1329 } 1330 1331 int 1332 spdk_iscsi_tgt_node_add_lun(struct spdk_iscsi_tgt_node *target, 1333 const char *bdev_name, int lun_id) 1334 { 1335 struct spdk_scsi_dev *dev; 1336 int rc; 1337 1338 if (target->num_active_conns > 0) { 1339 SPDK_ERRLOG("Target has active connections (count=%d)\n", 1340 target->num_active_conns); 1341 return -1; 1342 } 1343 1344 if (lun_id < -1 || lun_id >= SPDK_SCSI_DEV_MAX_LUN) { 1345 SPDK_ERRLOG("Specified LUN ID (%d) is invalid\n", lun_id); 1346 return -1; 1347 } 1348 1349 dev = target->dev; 1350 if (dev == NULL) { 1351 SPDK_ERRLOG("SCSI device is not found\n"); 1352 return -1; 1353 } 1354 1355 rc = spdk_scsi_dev_add_lun(dev, bdev_name, lun_id, NULL, NULL); 1356 if (rc != 0) { 1357 SPDK_ERRLOG("spdk_scsi_dev_add_lun failed\n"); 1358 return -1; 1359 } 1360 1361 return 0; 1362 } 1363 1364 int 1365 spdk_iscsi_tgt_node_set_chap_params(struct spdk_iscsi_tgt_node *target, 1366 bool disable_chap, bool require_chap, 1367 bool mutual_chap, int32_t chap_group) 1368 { 1369 if (!spdk_iscsi_check_chap_params(disable_chap, require_chap, 1370 mutual_chap, chap_group)) { 1371 return -EINVAL; 1372 } 1373 1374 pthread_mutex_lock(&target->mutex); 1375 target->disable_chap = disable_chap; 1376 target->require_chap = require_chap; 1377 target->mutual_chap = mutual_chap; 1378 target->chap_group = chap_group; 1379 pthread_mutex_unlock(&target->mutex); 1380 1381 return 0; 1382 } 1383 1384 static const char *target_nodes_section = \ 1385 "\n" 1386 "# Users should change the TargetNode section(s) below to match the\n" 1387 "# desired iSCSI target node configuration.\n" 1388 "# TargetName, Mapping, LUN0 are minimum required\n"; 1389 1390 #define TARGET_NODE_TMPL \ 1391 "[TargetNode%d]\n" \ 1392 " Comment \"Target%d\"\n" \ 1393 " TargetName %s\n" \ 1394 " TargetAlias \"%s\"\n" 1395 1396 #define TARGET_NODE_PGIG_MAPPING_TMPL \ 1397 " Mapping PortalGroup%d InitiatorGroup%d\n" 1398 1399 #define TARGET_NODE_AUTH_TMPL \ 1400 " AuthMethod %s\n" \ 1401 " AuthGroup %s\n" \ 1402 " UseDigest %s\n" 1403 1404 #define TARGET_NODE_QD_TMPL \ 1405 " QueueDepth %d\n\n" 1406 1407 #define TARGET_NODE_LUN_TMPL \ 1408 " LUN%d %s\n" 1409 1410 void 1411 spdk_iscsi_tgt_nodes_config_text(FILE *fp) 1412 { 1413 int l = 0; 1414 struct spdk_scsi_dev *dev = NULL; 1415 struct spdk_iscsi_tgt_node *target = NULL; 1416 struct spdk_iscsi_pg_map *pg_map; 1417 struct spdk_iscsi_ig_map *ig_map; 1418 1419 /* Create target nodes section */ 1420 fprintf(fp, "%s", target_nodes_section); 1421 1422 TAILQ_FOREACH(target, &g_spdk_iscsi.target_head, tailq) { 1423 int idx; 1424 const char *authmethod = "None"; 1425 char authgroup[32] = "None"; 1426 const char *usedigest = "Auto"; 1427 1428 dev = target->dev; 1429 if (NULL == dev) { continue; } 1430 1431 idx = target->num; 1432 fprintf(fp, TARGET_NODE_TMPL, idx, idx, target->name, spdk_scsi_dev_get_name(dev)); 1433 1434 TAILQ_FOREACH(pg_map, &target->pg_map_head, tailq) { 1435 TAILQ_FOREACH(ig_map, &pg_map->ig_map_head, tailq) { 1436 fprintf(fp, TARGET_NODE_PGIG_MAPPING_TMPL, 1437 pg_map->pg->tag, 1438 ig_map->ig->tag); 1439 } 1440 } 1441 1442 if (target->disable_chap) { 1443 authmethod = "None"; 1444 } else if (!target->require_chap) { 1445 authmethod = "Auto"; 1446 } else if (target->mutual_chap) { 1447 authmethod = "CHAP Mutual"; 1448 } else { 1449 authmethod = "CHAP"; 1450 } 1451 1452 if (target->chap_group > 0) { 1453 snprintf(authgroup, sizeof(authgroup), "AuthGroup%d", target->chap_group); 1454 } 1455 1456 if (target->header_digest) { 1457 usedigest = "Header"; 1458 } else if (target->data_digest) { 1459 usedigest = "Data"; 1460 } 1461 1462 fprintf(fp, TARGET_NODE_AUTH_TMPL, 1463 authmethod, authgroup, usedigest); 1464 1465 for (l = 0; l < SPDK_SCSI_DEV_MAX_LUN; l++) { 1466 struct spdk_scsi_lun *lun = spdk_scsi_dev_get_lun(dev, l); 1467 1468 if (!lun) { 1469 continue; 1470 } 1471 1472 fprintf(fp, TARGET_NODE_LUN_TMPL, 1473 spdk_scsi_lun_get_id(lun), 1474 spdk_scsi_lun_get_bdev_name(lun)); 1475 } 1476 1477 fprintf(fp, TARGET_NODE_QD_TMPL, 1478 target->queue_depth); 1479 } 1480 } 1481 1482 static void 1483 iscsi_tgt_node_info_json(struct spdk_iscsi_tgt_node *target, 1484 struct spdk_json_write_ctx *w) 1485 { 1486 struct spdk_iscsi_pg_map *pg_map; 1487 struct spdk_iscsi_ig_map *ig_map; 1488 int i; 1489 1490 spdk_json_write_object_begin(w); 1491 1492 spdk_json_write_named_string(w, "name", target->name); 1493 1494 if (target->alias) { 1495 spdk_json_write_named_string(w, "alias_name", target->alias); 1496 } 1497 1498 spdk_json_write_named_array_begin(w, "pg_ig_maps"); 1499 TAILQ_FOREACH(pg_map, &target->pg_map_head, tailq) { 1500 TAILQ_FOREACH(ig_map, &pg_map->ig_map_head, tailq) { 1501 spdk_json_write_object_begin(w); 1502 spdk_json_write_named_int32(w, "pg_tag", pg_map->pg->tag); 1503 spdk_json_write_named_int32(w, "ig_tag", ig_map->ig->tag); 1504 spdk_json_write_object_end(w); 1505 } 1506 } 1507 spdk_json_write_array_end(w); 1508 1509 spdk_json_write_named_array_begin(w, "luns"); 1510 for (i = 0; i < SPDK_SCSI_DEV_MAX_LUN; i++) { 1511 struct spdk_scsi_lun *lun = spdk_scsi_dev_get_lun(target->dev, i); 1512 1513 if (lun) { 1514 spdk_json_write_object_begin(w); 1515 spdk_json_write_named_string(w, "bdev_name", spdk_scsi_lun_get_bdev_name(lun)); 1516 spdk_json_write_named_int32(w, "lun_id", spdk_scsi_lun_get_id(lun)); 1517 spdk_json_write_object_end(w); 1518 } 1519 } 1520 spdk_json_write_array_end(w); 1521 1522 spdk_json_write_named_int32(w, "queue_depth", target->queue_depth); 1523 1524 spdk_json_write_named_bool(w, "disable_chap", target->disable_chap); 1525 spdk_json_write_named_bool(w, "require_chap", target->require_chap); 1526 spdk_json_write_named_bool(w, "mutual_chap", target->mutual_chap); 1527 spdk_json_write_named_int32(w, "chap_group", target->chap_group); 1528 1529 spdk_json_write_named_bool(w, "header_digest", target->header_digest); 1530 spdk_json_write_named_bool(w, "data_digest", target->data_digest); 1531 1532 spdk_json_write_object_end(w); 1533 } 1534 1535 static void 1536 iscsi_tgt_node_config_json(struct spdk_iscsi_tgt_node *target, 1537 struct spdk_json_write_ctx *w) 1538 { 1539 spdk_json_write_object_begin(w); 1540 1541 spdk_json_write_named_string(w, "method", "construct_target_node"); 1542 1543 spdk_json_write_name(w, "params"); 1544 iscsi_tgt_node_info_json(target, w); 1545 1546 spdk_json_write_object_end(w); 1547 } 1548 1549 void 1550 spdk_iscsi_tgt_nodes_info_json(struct spdk_json_write_ctx *w) 1551 { 1552 struct spdk_iscsi_tgt_node *target; 1553 1554 TAILQ_FOREACH(target, &g_spdk_iscsi.target_head, tailq) { 1555 iscsi_tgt_node_info_json(target, w); 1556 } 1557 } 1558 1559 void 1560 spdk_iscsi_tgt_nodes_config_json(struct spdk_json_write_ctx *w) 1561 { 1562 struct spdk_iscsi_tgt_node *target; 1563 1564 TAILQ_FOREACH(target, &g_spdk_iscsi.target_head, tailq) { 1565 iscsi_tgt_node_config_json(target, w); 1566 } 1567 } 1568