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->pg_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(void *cb_arg, int rc) 629 { 630 struct spdk_iscsi_tgt_node *target = cb_arg; 631 iscsi_tgt_node_destruct_cb destruct_cb_fn = target->destruct_cb_fn; 632 void *destruct_cb_arg = target->destruct_cb_arg; 633 634 if (rc != 0) { 635 if (destruct_cb_fn) { 636 destruct_cb_fn(destruct_cb_arg, rc); 637 } 638 return; 639 } 640 641 pthread_mutex_lock(&g_spdk_iscsi.mutex); 642 iscsi_tgt_node_delete_all_pg_maps(target); 643 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 644 645 pthread_mutex_destroy(&target->mutex); 646 free(target); 647 648 if (destruct_cb_fn) { 649 destruct_cb_fn(destruct_cb_arg, 0); 650 } 651 } 652 653 static int 654 iscsi_tgt_node_check_active_conns(void *arg) 655 { 656 struct spdk_iscsi_tgt_node *target = arg; 657 658 if (spdk_iscsi_get_active_conns(target) != 0) { 659 return 1; 660 } 661 662 spdk_poller_unregister(&target->destruct_poller); 663 664 spdk_scsi_dev_destruct(target->dev, _iscsi_tgt_node_destruct, target); 665 666 return 1; 667 } 668 669 static void 670 iscsi_tgt_node_destruct(struct spdk_iscsi_tgt_node *target, 671 iscsi_tgt_node_destruct_cb cb_fn, void *cb_arg) 672 { 673 if (target == NULL) { 674 if (cb_fn) { 675 cb_fn(cb_arg, -ENOENT); 676 } 677 return; 678 } 679 680 if (target->destructed) { 681 SPDK_ERRLOG("Destructing %s is already started\n", target->name); 682 if (cb_fn) { 683 cb_fn(cb_arg, -EBUSY); 684 } 685 return; 686 } 687 688 target->destructed = true; 689 target->destruct_cb_fn = cb_fn; 690 target->destruct_cb_arg = cb_arg; 691 692 spdk_iscsi_conns_request_logout(target); 693 694 if (spdk_iscsi_get_active_conns(target) != 0) { 695 target->destruct_poller = spdk_poller_register(iscsi_tgt_node_check_active_conns, 696 target, 10); 697 } else { 698 spdk_scsi_dev_destruct(target->dev, _iscsi_tgt_node_destruct, target); 699 } 700 701 } 702 703 static int 704 iscsi_tgt_node_delete_pg_ig_map(struct spdk_iscsi_tgt_node *target, 705 int pg_tag, int ig_tag) 706 { 707 struct spdk_iscsi_portal_grp *pg; 708 struct spdk_iscsi_init_grp *ig; 709 struct spdk_iscsi_pg_map *pg_map; 710 struct spdk_iscsi_ig_map *ig_map; 711 712 pg = spdk_iscsi_portal_grp_find_by_tag(pg_tag); 713 if (pg == NULL) { 714 SPDK_ERRLOG("%s: PortalGroup%d not found\n", target->name, pg_tag); 715 return -ENOENT; 716 } 717 ig = spdk_iscsi_init_grp_find_by_tag(ig_tag); 718 if (ig == NULL) { 719 SPDK_ERRLOG("%s: InitiatorGroup%d not found\n", target->name, ig_tag); 720 return -ENOENT; 721 } 722 723 pg_map = iscsi_tgt_node_find_pg_map(target, pg); 724 if (pg_map == NULL) { 725 SPDK_ERRLOG("%s: PortalGroup%d is not mapped\n", target->name, pg_tag); 726 return -ENOENT; 727 } 728 ig_map = iscsi_pg_map_find_ig_map(pg_map, ig); 729 if (ig_map == NULL) { 730 SPDK_ERRLOG("%s: InitiatorGroup%d is not mapped\n", target->name, pg_tag); 731 return -ENOENT; 732 } 733 734 _iscsi_pg_map_delete_ig_map(pg_map, ig_map); 735 if (pg_map->num_ig_maps == 0) { 736 _iscsi_tgt_node_delete_pg_map(target, pg_map); 737 } 738 739 return 0; 740 } 741 742 static int 743 iscsi_tgt_node_add_pg_ig_map(struct spdk_iscsi_tgt_node *target, 744 int pg_tag, int ig_tag) 745 { 746 struct spdk_iscsi_portal_grp *pg; 747 struct spdk_iscsi_pg_map *pg_map; 748 struct spdk_iscsi_init_grp *ig; 749 struct spdk_iscsi_ig_map *ig_map; 750 bool new_pg_map = false; 751 752 pg = spdk_iscsi_portal_grp_find_by_tag(pg_tag); 753 if (pg == NULL) { 754 SPDK_ERRLOG("%s: PortalGroup%d not found\n", target->name, pg_tag); 755 return -ENOENT; 756 } 757 ig = spdk_iscsi_init_grp_find_by_tag(ig_tag); 758 if (ig == NULL) { 759 SPDK_ERRLOG("%s: InitiatorGroup%d not found\n", target->name, ig_tag); 760 return -ENOENT; 761 } 762 763 /* get existing pg_map or create new pg_map and add it to target */ 764 pg_map = iscsi_tgt_node_find_pg_map(target, pg); 765 if (pg_map == NULL) { 766 pg_map = iscsi_tgt_node_add_pg_map(target, pg); 767 if (pg_map == NULL) { 768 goto failed; 769 } 770 new_pg_map = true; 771 } 772 773 /* create new ig_map and add it to pg_map */ 774 ig_map = iscsi_pg_map_add_ig_map(pg_map, ig); 775 if (ig_map == NULL) { 776 goto failed; 777 } 778 779 return 0; 780 781 failed: 782 if (new_pg_map) { 783 _iscsi_tgt_node_delete_pg_map(target, pg_map); 784 } 785 786 return -1; 787 } 788 789 int 790 spdk_iscsi_target_node_add_pg_ig_maps(struct spdk_iscsi_tgt_node *target, 791 int *pg_tag_list, int *ig_tag_list, uint16_t num_maps) 792 { 793 uint16_t i; 794 int rc; 795 796 pthread_mutex_lock(&g_spdk_iscsi.mutex); 797 for (i = 0; i < num_maps; i++) { 798 rc = iscsi_tgt_node_add_pg_ig_map(target, pg_tag_list[i], 799 ig_tag_list[i]); 800 if (rc != 0) { 801 SPDK_ERRLOG("could not add map to target\n"); 802 goto invalid; 803 } 804 } 805 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 806 return 0; 807 808 invalid: 809 for (; i > 0; --i) { 810 iscsi_tgt_node_delete_pg_ig_map(target, pg_tag_list[i - 1], 811 ig_tag_list[i - 1]); 812 } 813 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 814 return -1; 815 } 816 817 int 818 spdk_iscsi_target_node_remove_pg_ig_maps(struct spdk_iscsi_tgt_node *target, 819 int *pg_tag_list, int *ig_tag_list, uint16_t num_maps) 820 { 821 uint16_t i; 822 int rc; 823 824 pthread_mutex_lock(&g_spdk_iscsi.mutex); 825 for (i = 0; i < num_maps; i++) { 826 rc = iscsi_tgt_node_delete_pg_ig_map(target, pg_tag_list[i], 827 ig_tag_list[i]); 828 if (rc != 0) { 829 SPDK_ERRLOG("could not delete map from target\n"); 830 goto invalid; 831 } 832 } 833 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 834 return 0; 835 836 invalid: 837 for (; i > 0; --i) { 838 rc = iscsi_tgt_node_add_pg_ig_map(target, pg_tag_list[i - 1], 839 ig_tag_list[i - 1]); 840 if (rc != 0) { 841 iscsi_tgt_node_delete_all_pg_maps(target); 842 break; 843 } 844 } 845 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 846 return -1; 847 } 848 849 static int 850 check_iscsi_name(const char *name) 851 { 852 const unsigned char *up = (const unsigned char *) name; 853 size_t n; 854 855 /* valid iSCSI name no larger than 223 bytes */ 856 if (strlen(name) > MAX_TARGET_NAME) { 857 return -1; 858 } 859 860 /* valid iSCSI name? */ 861 for (n = 0; up[n] != 0; n++) { 862 if (up[n] > 0x00U && up[n] <= 0x2cU) { 863 return -1; 864 } 865 if (up[n] == 0x2fU) { 866 return -1; 867 } 868 if (up[n] >= 0x3bU && up[n] <= 0x40U) { 869 return -1; 870 } 871 if (up[n] >= 0x5bU && up[n] <= 0x60U) { 872 return -1; 873 } 874 if (up[n] >= 0x7bU && up[n] <= 0x7fU) { 875 return -1; 876 } 877 if (isspace(up[n])) { 878 return -1; 879 } 880 } 881 /* valid format? */ 882 if (strncasecmp(name, "iqn.", 4) == 0) { 883 /* iqn.YYYY-MM.reversed.domain.name */ 884 if (!isdigit(up[4]) || !isdigit(up[5]) || !isdigit(up[6]) 885 || !isdigit(up[7]) || up[8] != '-' || !isdigit(up[9]) 886 || !isdigit(up[10]) || up[11] != '.') { 887 SPDK_ERRLOG("invalid iqn format. " 888 "expect \"iqn.YYYY-MM.reversed.domain.name\"\n"); 889 return -1; 890 } 891 } else if (strncasecmp(name, "eui.", 4) == 0) { 892 /* EUI-64 -> 16bytes */ 893 /* XXX */ 894 } else if (strncasecmp(name, "naa.", 4) == 0) { 895 /* 64bit -> 16bytes, 128bit -> 32bytes */ 896 /* XXX */ 897 } 898 /* OK */ 899 return 0; 900 } 901 902 bool 903 spdk_iscsi_check_chap_params(bool disable, bool require, bool mutual, int group) 904 { 905 if (group < 0) { 906 SPDK_ERRLOG("Invalid auth group ID (%d)\n", group); 907 return false; 908 } 909 if ((!disable && !require && !mutual) || /* Auto */ 910 (disable && !require && !mutual) || /* None */ 911 (!disable && require && !mutual) || /* CHAP */ 912 (!disable && require && mutual)) { /* CHAP Mutual */ 913 return true; 914 } 915 SPDK_ERRLOG("Invalid combination of CHAP params (d=%d,r=%d,m=%d)\n", 916 disable, require, mutual); 917 return false; 918 } 919 920 _spdk_iscsi_tgt_node * 921 spdk_iscsi_tgt_node_construct(int target_index, 922 const char *name, const char *alias, 923 int *pg_tag_list, int *ig_tag_list, uint16_t num_maps, 924 const char *bdev_name_list[], int *lun_id_list, int num_luns, 925 int queue_depth, 926 bool disable_chap, bool require_chap, bool mutual_chap, int chap_group, 927 bool header_digest, bool data_digest) 928 { 929 char fullname[MAX_TMPBUF]; 930 struct spdk_iscsi_tgt_node *target; 931 int rc; 932 933 if (!spdk_iscsi_check_chap_params(disable_chap, require_chap, 934 mutual_chap, chap_group)) { 935 return NULL; 936 } 937 938 if (num_maps == 0) { 939 SPDK_ERRLOG("num_maps = 0\n"); 940 return NULL; 941 } 942 943 if (name == NULL) { 944 SPDK_ERRLOG("TargetName not found\n"); 945 return NULL; 946 } 947 948 if (strncasecmp(name, "iqn.", 4) != 0 949 && strncasecmp(name, "eui.", 4) != 0 950 && strncasecmp(name, "naa.", 4) != 0) { 951 snprintf(fullname, sizeof(fullname), "%s:%s", g_spdk_iscsi.nodebase, name); 952 } else { 953 snprintf(fullname, sizeof(fullname), "%s", name); 954 } 955 956 if (check_iscsi_name(fullname) != 0) { 957 SPDK_ERRLOG("TargetName %s contains an invalid character or format.\n", 958 name); 959 return NULL; 960 } 961 962 target = calloc(1, sizeof(*target)); 963 if (!target) { 964 SPDK_ERRLOG("could not allocate target\n"); 965 return NULL; 966 } 967 968 rc = pthread_mutex_init(&target->mutex, NULL); 969 if (rc != 0) { 970 SPDK_ERRLOG("tgt_node%d: mutex_init() failed\n", target->num); 971 iscsi_tgt_node_destruct(target, NULL, NULL); 972 return NULL; 973 } 974 975 target->num = target_index; 976 977 memcpy(target->name, fullname, strlen(fullname)); 978 979 if (alias != NULL) { 980 if (strlen(alias) > MAX_TARGET_NAME) { 981 iscsi_tgt_node_destruct(target, NULL, NULL); 982 return NULL; 983 } 984 memcpy(target->alias, alias, strlen(alias)); 985 } 986 987 target->dev = spdk_scsi_dev_construct(fullname, bdev_name_list, lun_id_list, num_luns, 988 SPDK_SPC_PROTOCOL_IDENTIFIER_ISCSI, NULL, NULL); 989 if (!target->dev) { 990 SPDK_ERRLOG("Could not construct SCSI device\n"); 991 iscsi_tgt_node_destruct(target, NULL, NULL); 992 return NULL; 993 } 994 995 TAILQ_INIT(&target->pg_map_head); 996 rc = spdk_iscsi_target_node_add_pg_ig_maps(target, pg_tag_list, 997 ig_tag_list, num_maps); 998 if (rc != 0) { 999 SPDK_ERRLOG("could not add map to target\n"); 1000 iscsi_tgt_node_destruct(target, NULL, NULL); 1001 return NULL; 1002 } 1003 1004 target->disable_chap = disable_chap; 1005 target->require_chap = require_chap; 1006 target->mutual_chap = mutual_chap; 1007 target->chap_group = chap_group; 1008 target->header_digest = header_digest; 1009 target->data_digest = data_digest; 1010 1011 if (queue_depth > 0 && ((uint32_t)queue_depth <= g_spdk_iscsi.MaxQueueDepth)) { 1012 target->queue_depth = queue_depth; 1013 } else { 1014 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "QueueDepth %d is invalid and %d is used instead.\n", 1015 queue_depth, g_spdk_iscsi.MaxQueueDepth); 1016 target->queue_depth = g_spdk_iscsi.MaxQueueDepth; 1017 } 1018 1019 rc = iscsi_tgt_node_register(target); 1020 if (rc != 0) { 1021 SPDK_ERRLOG("register target is failed\n"); 1022 iscsi_tgt_node_destruct(target, NULL, NULL); 1023 return NULL; 1024 } 1025 1026 return target; 1027 } 1028 1029 static int 1030 iscsi_parse_tgt_node(struct spdk_conf_section *sp) 1031 { 1032 char buf[MAX_TMPBUF]; 1033 struct spdk_iscsi_tgt_node *target; 1034 int pg_tag_list[MAX_TARGET_MAP], ig_tag_list[MAX_TARGET_MAP]; 1035 int num_target_maps; 1036 const char *alias, *pg_tag, *ig_tag; 1037 const char *ag_tag; 1038 const char *val, *name; 1039 int target_num, chap_group, pg_tag_i, ig_tag_i; 1040 bool header_digest, data_digest; 1041 bool disable_chap, require_chap, mutual_chap; 1042 int i; 1043 int lun_id_list[SPDK_SCSI_DEV_MAX_LUN]; 1044 const char *bdev_name_list[SPDK_SCSI_DEV_MAX_LUN]; 1045 int num_luns, queue_depth; 1046 1047 target_num = spdk_conf_section_get_num(sp); 1048 1049 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "add unit %d\n", target_num); 1050 1051 data_digest = false; 1052 header_digest = false; 1053 1054 name = spdk_conf_section_get_val(sp, "TargetName"); 1055 1056 if (name == NULL) { 1057 SPDK_ERRLOG("tgt_node%d: TargetName not found\n", target_num); 1058 return -1; 1059 } 1060 1061 alias = spdk_conf_section_get_val(sp, "TargetAlias"); 1062 1063 /* Setup initiator and portal group mapping */ 1064 val = spdk_conf_section_get_val(sp, "Mapping"); 1065 if (val == NULL) { 1066 /* no map */ 1067 SPDK_ERRLOG("tgt_node%d: no Mapping\n", target_num); 1068 return -1; 1069 } 1070 1071 for (i = 0; i < MAX_TARGET_MAP; i++) { 1072 val = spdk_conf_section_get_nmval(sp, "Mapping", i, 0); 1073 if (val == NULL) { 1074 break; 1075 } 1076 pg_tag = spdk_conf_section_get_nmval(sp, "Mapping", i, 0); 1077 ig_tag = spdk_conf_section_get_nmval(sp, "Mapping", i, 1); 1078 if (pg_tag == NULL || ig_tag == NULL) { 1079 SPDK_ERRLOG("tgt_node%d: mapping error\n", target_num); 1080 return -1; 1081 } 1082 if (strncasecmp(pg_tag, "PortalGroup", 1083 strlen("PortalGroup")) != 0 1084 || sscanf(pg_tag, "%*[^0-9]%d", &pg_tag_i) != 1) { 1085 SPDK_ERRLOG("tgt_node%d: mapping portal error\n", target_num); 1086 return -1; 1087 } 1088 if (strncasecmp(ig_tag, "InitiatorGroup", 1089 strlen("InitiatorGroup")) != 0 1090 || sscanf(ig_tag, "%*[^0-9]%d", &ig_tag_i) != 1) { 1091 SPDK_ERRLOG("tgt_node%d: mapping initiator error\n", target_num); 1092 return -1; 1093 } 1094 if (pg_tag_i < 1 || ig_tag_i < 1) { 1095 SPDK_ERRLOG("tgt_node%d: invalid group tag\n", target_num); 1096 return -1; 1097 } 1098 pg_tag_list[i] = pg_tag_i; 1099 ig_tag_list[i] = ig_tag_i; 1100 } 1101 1102 num_target_maps = i; 1103 1104 /* Setup AuthMethod */ 1105 val = spdk_conf_section_get_val(sp, "AuthMethod"); 1106 disable_chap = false; 1107 require_chap = false; 1108 mutual_chap = false; 1109 if (val != NULL) { 1110 for (i = 0; ; i++) { 1111 val = spdk_conf_section_get_nmval(sp, "AuthMethod", 0, i); 1112 if (val == NULL) { 1113 break; 1114 } 1115 if (strcasecmp(val, "CHAP") == 0) { 1116 require_chap = true; 1117 } else if (strcasecmp(val, "Mutual") == 0) { 1118 mutual_chap = true; 1119 } else if (strcasecmp(val, "Auto") == 0) { 1120 disable_chap = false; 1121 require_chap = false; 1122 mutual_chap = false; 1123 } else if (strcasecmp(val, "None") == 0) { 1124 disable_chap = true; 1125 require_chap = false; 1126 mutual_chap = false; 1127 } else { 1128 SPDK_ERRLOG("tgt_node%d: unknown auth\n", target_num); 1129 return -1; 1130 } 1131 } 1132 if (mutual_chap && !require_chap) { 1133 SPDK_ERRLOG("tgt_node%d: Mutual but not CHAP\n", target_num); 1134 return -1; 1135 } 1136 } 1137 if (disable_chap) { 1138 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "AuthMethod None\n"); 1139 } else if (!require_chap) { 1140 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "AuthMethod Auto\n"); 1141 } else { 1142 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "AuthMethod CHAP %s\n", 1143 mutual_chap ? "Mutual" : ""); 1144 } 1145 1146 val = spdk_conf_section_get_val(sp, "AuthGroup"); 1147 if (val == NULL) { 1148 chap_group = 0; 1149 } else { 1150 ag_tag = val; 1151 if (strcasecmp(ag_tag, "None") == 0) { 1152 chap_group = 0; 1153 } else { 1154 if (strncasecmp(ag_tag, "AuthGroup", 1155 strlen("AuthGroup")) != 0 1156 || sscanf(ag_tag, "%*[^0-9]%d", &chap_group) != 1) { 1157 SPDK_ERRLOG("tgt_node%d: auth group error\n", target_num); 1158 return -1; 1159 } 1160 if (chap_group == 0) { 1161 SPDK_ERRLOG("tgt_node%d: invalid auth group 0\n", target_num); 1162 return -1; 1163 } 1164 } 1165 } 1166 if (chap_group == 0) { 1167 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "AuthGroup None\n"); 1168 } else { 1169 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "AuthGroup AuthGroup%d\n", chap_group); 1170 } 1171 1172 val = spdk_conf_section_get_val(sp, "UseDigest"); 1173 if (val != NULL) { 1174 for (i = 0; ; i++) { 1175 val = spdk_conf_section_get_nmval(sp, "UseDigest", 0, i); 1176 if (val == NULL) { 1177 break; 1178 } 1179 if (strcasecmp(val, "Header") == 0) { 1180 header_digest = true; 1181 } else if (strcasecmp(val, "Data") == 0) { 1182 data_digest = true; 1183 } else if (strcasecmp(val, "Auto") == 0) { 1184 header_digest = false; 1185 data_digest = false; 1186 } else { 1187 SPDK_ERRLOG("tgt_node%d: unknown digest\n", target_num); 1188 return -1; 1189 } 1190 } 1191 } 1192 if (!header_digest && !data_digest) { 1193 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "UseDigest Auto\n"); 1194 } else { 1195 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "UseDigest %s %s\n", 1196 header_digest ? "Header" : "", 1197 data_digest ? "Data" : ""); 1198 } 1199 1200 val = spdk_conf_section_get_val(sp, "QueueDepth"); 1201 if (val == NULL) { 1202 queue_depth = g_spdk_iscsi.MaxQueueDepth; 1203 } else { 1204 queue_depth = (int) strtol(val, NULL, 10); 1205 } 1206 1207 num_luns = 0; 1208 1209 for (i = 0; i < SPDK_SCSI_DEV_MAX_LUN; i++) { 1210 snprintf(buf, sizeof(buf), "LUN%d", i); 1211 val = spdk_conf_section_get_val(sp, buf); 1212 if (val == NULL) { 1213 continue; 1214 } 1215 1216 bdev_name_list[num_luns] = val; 1217 lun_id_list[num_luns] = i; 1218 num_luns++; 1219 } 1220 1221 if (num_luns == 0) { 1222 SPDK_ERRLOG("tgt_node%d: No LUN specified for target %s.\n", target_num, name); 1223 return -1; 1224 } 1225 1226 target = spdk_iscsi_tgt_node_construct(target_num, name, alias, 1227 pg_tag_list, ig_tag_list, num_target_maps, 1228 bdev_name_list, lun_id_list, num_luns, queue_depth, 1229 disable_chap, require_chap, mutual_chap, chap_group, 1230 header_digest, data_digest); 1231 1232 if (target == NULL) { 1233 SPDK_ERRLOG("tgt_node%d: add_iscsi_target_node error\n", target_num); 1234 return -1; 1235 } 1236 1237 for (i = 0; i < SPDK_SCSI_DEV_MAX_LUN; i++) { 1238 struct spdk_scsi_lun *lun = spdk_scsi_dev_get_lun(target->dev, i); 1239 1240 if (lun) { 1241 SPDK_INFOLOG(SPDK_LOG_ISCSI, "device %d: LUN%d %s\n", 1242 spdk_scsi_dev_get_id(target->dev), 1243 spdk_scsi_lun_get_id(lun), 1244 spdk_scsi_lun_get_bdev_name(lun)); 1245 } 1246 } 1247 1248 return 0; 1249 } 1250 1251 int spdk_iscsi_parse_tgt_nodes(void) 1252 { 1253 struct spdk_conf_section *sp; 1254 int rc; 1255 1256 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "spdk_iscsi_parse_tgt_nodes\n"); 1257 1258 sp = spdk_conf_first_section(NULL); 1259 while (sp != NULL) { 1260 if (spdk_conf_section_match_prefix(sp, "TargetNode")) { 1261 int tag = spdk_conf_section_get_num(sp); 1262 1263 if (tag > SPDK_TN_TAG_MAX) { 1264 SPDK_ERRLOG("tag %d is invalid\n", tag); 1265 return -1; 1266 } 1267 rc = iscsi_parse_tgt_node(sp); 1268 if (rc < 0) { 1269 SPDK_ERRLOG("spdk_iscsi_parse_tgt_node() failed\n"); 1270 return -1; 1271 } 1272 } 1273 sp = spdk_conf_next_section(sp); 1274 } 1275 return 0; 1276 } 1277 1278 void 1279 spdk_iscsi_shutdown_tgt_nodes(void) 1280 { 1281 struct spdk_iscsi_tgt_node *target; 1282 1283 pthread_mutex_lock(&g_spdk_iscsi.mutex); 1284 while (!TAILQ_EMPTY(&g_spdk_iscsi.target_head)) { 1285 target = TAILQ_FIRST(&g_spdk_iscsi.target_head); 1286 TAILQ_REMOVE(&g_spdk_iscsi.target_head, target, tailq); 1287 1288 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 1289 1290 iscsi_tgt_node_destruct(target, NULL, NULL); 1291 1292 pthread_mutex_lock(&g_spdk_iscsi.mutex); 1293 } 1294 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 1295 } 1296 1297 void 1298 spdk_iscsi_shutdown_tgt_node_by_name(const char *target_name, 1299 iscsi_tgt_node_destruct_cb cb_fn, void *cb_arg) 1300 { 1301 struct spdk_iscsi_tgt_node *target; 1302 1303 pthread_mutex_lock(&g_spdk_iscsi.mutex); 1304 target = spdk_iscsi_find_tgt_node(target_name); 1305 if (target != NULL) { 1306 iscsi_tgt_node_unregister(target); 1307 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 1308 1309 iscsi_tgt_node_destruct(target, cb_fn, cb_arg); 1310 1311 return; 1312 } 1313 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 1314 1315 if (cb_fn) { 1316 cb_fn(cb_arg, -ENOENT); 1317 } 1318 } 1319 1320 bool 1321 spdk_iscsi_tgt_node_is_destructed(struct spdk_iscsi_tgt_node *target) 1322 { 1323 return target->destructed; 1324 } 1325 1326 int 1327 spdk_iscsi_tgt_node_cleanup_luns(struct spdk_iscsi_conn *conn, 1328 struct spdk_iscsi_tgt_node *target) 1329 { 1330 int i; 1331 struct spdk_iscsi_task *task; 1332 1333 for (i = 0; i < SPDK_SCSI_DEV_MAX_LUN; i++) { 1334 struct spdk_scsi_lun *lun = spdk_scsi_dev_get_lun(target->dev, i); 1335 1336 if (!lun) { 1337 continue; 1338 } 1339 1340 /* we create a fake management task per LUN to cleanup */ 1341 task = spdk_iscsi_task_get(conn, NULL, spdk_iscsi_task_mgmt_cpl); 1342 if (!task) { 1343 SPDK_ERRLOG("Unable to acquire task\n"); 1344 return -1; 1345 } 1346 1347 task->scsi.target_port = conn->target_port; 1348 task->scsi.initiator_port = conn->initiator_port; 1349 task->scsi.lun = lun; 1350 1351 spdk_iscsi_op_abort_task_set(task, SPDK_SCSI_TASK_FUNC_LUN_RESET); 1352 } 1353 1354 return 0; 1355 } 1356 1357 void spdk_iscsi_tgt_node_delete_map(struct spdk_iscsi_portal_grp *portal_group, 1358 struct spdk_iscsi_init_grp *initiator_group) 1359 { 1360 struct spdk_iscsi_tgt_node *target; 1361 1362 pthread_mutex_lock(&g_spdk_iscsi.mutex); 1363 TAILQ_FOREACH(target, &g_spdk_iscsi.target_head, tailq) { 1364 if (portal_group) { 1365 iscsi_tgt_node_delete_pg_map(target, portal_group); 1366 } 1367 if (initiator_group) { 1368 iscsi_tgt_node_delete_ig_maps(target, initiator_group); 1369 } 1370 } 1371 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 1372 } 1373 1374 int 1375 spdk_iscsi_tgt_node_add_lun(struct spdk_iscsi_tgt_node *target, 1376 const char *bdev_name, int lun_id) 1377 { 1378 struct spdk_scsi_dev *dev; 1379 int rc; 1380 1381 if (target->num_active_conns > 0) { 1382 SPDK_ERRLOG("Target has active connections (count=%d)\n", 1383 target->num_active_conns); 1384 return -1; 1385 } 1386 1387 if (lun_id < -1 || lun_id >= SPDK_SCSI_DEV_MAX_LUN) { 1388 SPDK_ERRLOG("Specified LUN ID (%d) is invalid\n", lun_id); 1389 return -1; 1390 } 1391 1392 dev = target->dev; 1393 if (dev == NULL) { 1394 SPDK_ERRLOG("SCSI device is not found\n"); 1395 return -1; 1396 } 1397 1398 rc = spdk_scsi_dev_add_lun(dev, bdev_name, lun_id, NULL, NULL); 1399 if (rc != 0) { 1400 SPDK_ERRLOG("spdk_scsi_dev_add_lun failed\n"); 1401 return -1; 1402 } 1403 1404 return 0; 1405 } 1406 1407 int 1408 spdk_iscsi_tgt_node_set_chap_params(struct spdk_iscsi_tgt_node *target, 1409 bool disable_chap, bool require_chap, 1410 bool mutual_chap, int32_t chap_group) 1411 { 1412 if (!spdk_iscsi_check_chap_params(disable_chap, require_chap, 1413 mutual_chap, chap_group)) { 1414 return -EINVAL; 1415 } 1416 1417 pthread_mutex_lock(&target->mutex); 1418 target->disable_chap = disable_chap; 1419 target->require_chap = require_chap; 1420 target->mutual_chap = mutual_chap; 1421 target->chap_group = chap_group; 1422 pthread_mutex_unlock(&target->mutex); 1423 1424 return 0; 1425 } 1426 1427 static const char *target_nodes_section = \ 1428 "\n" 1429 "# Users should change the TargetNode section(s) below to match the\n" 1430 "# desired iSCSI target node configuration.\n" 1431 "# TargetName, Mapping, LUN0 are minimum required\n"; 1432 1433 #define TARGET_NODE_TMPL \ 1434 "[TargetNode%d]\n" \ 1435 " Comment \"Target%d\"\n" \ 1436 " TargetName %s\n" \ 1437 " TargetAlias \"%s\"\n" 1438 1439 #define TARGET_NODE_PGIG_MAPPING_TMPL \ 1440 " Mapping PortalGroup%d InitiatorGroup%d\n" 1441 1442 #define TARGET_NODE_AUTH_TMPL \ 1443 " AuthMethod %s\n" \ 1444 " AuthGroup %s\n" \ 1445 " UseDigest %s\n" 1446 1447 #define TARGET_NODE_QD_TMPL \ 1448 " QueueDepth %d\n\n" 1449 1450 #define TARGET_NODE_LUN_TMPL \ 1451 " LUN%d %s\n" 1452 1453 void 1454 spdk_iscsi_tgt_nodes_config_text(FILE *fp) 1455 { 1456 int l = 0; 1457 struct spdk_scsi_dev *dev = NULL; 1458 struct spdk_iscsi_tgt_node *target = NULL; 1459 struct spdk_iscsi_pg_map *pg_map; 1460 struct spdk_iscsi_ig_map *ig_map; 1461 1462 /* Create target nodes section */ 1463 fprintf(fp, "%s", target_nodes_section); 1464 1465 TAILQ_FOREACH(target, &g_spdk_iscsi.target_head, tailq) { 1466 int idx; 1467 const char *authmethod = "None"; 1468 char authgroup[32] = "None"; 1469 const char *usedigest = "Auto"; 1470 1471 dev = target->dev; 1472 if (NULL == dev) { continue; } 1473 1474 idx = target->num; 1475 fprintf(fp, TARGET_NODE_TMPL, idx, idx, target->name, spdk_scsi_dev_get_name(dev)); 1476 1477 TAILQ_FOREACH(pg_map, &target->pg_map_head, tailq) { 1478 TAILQ_FOREACH(ig_map, &pg_map->ig_map_head, tailq) { 1479 fprintf(fp, TARGET_NODE_PGIG_MAPPING_TMPL, 1480 pg_map->pg->tag, 1481 ig_map->ig->tag); 1482 } 1483 } 1484 1485 if (target->disable_chap) { 1486 authmethod = "None"; 1487 } else if (!target->require_chap) { 1488 authmethod = "Auto"; 1489 } else if (target->mutual_chap) { 1490 authmethod = "CHAP Mutual"; 1491 } else { 1492 authmethod = "CHAP"; 1493 } 1494 1495 if (target->chap_group > 0) { 1496 snprintf(authgroup, sizeof(authgroup), "AuthGroup%d", target->chap_group); 1497 } 1498 1499 if (target->header_digest) { 1500 usedigest = "Header"; 1501 } else if (target->data_digest) { 1502 usedigest = "Data"; 1503 } 1504 1505 fprintf(fp, TARGET_NODE_AUTH_TMPL, 1506 authmethod, authgroup, usedigest); 1507 1508 for (l = 0; l < SPDK_SCSI_DEV_MAX_LUN; l++) { 1509 struct spdk_scsi_lun *lun = spdk_scsi_dev_get_lun(dev, l); 1510 1511 if (!lun) { 1512 continue; 1513 } 1514 1515 fprintf(fp, TARGET_NODE_LUN_TMPL, 1516 spdk_scsi_lun_get_id(lun), 1517 spdk_scsi_lun_get_bdev_name(lun)); 1518 } 1519 1520 fprintf(fp, TARGET_NODE_QD_TMPL, 1521 target->queue_depth); 1522 } 1523 } 1524 1525 static void 1526 iscsi_tgt_node_info_json(struct spdk_iscsi_tgt_node *target, 1527 struct spdk_json_write_ctx *w) 1528 { 1529 struct spdk_iscsi_pg_map *pg_map; 1530 struct spdk_iscsi_ig_map *ig_map; 1531 int i; 1532 1533 spdk_json_write_object_begin(w); 1534 1535 spdk_json_write_named_string(w, "name", target->name); 1536 1537 if (target->alias[0] != '\0') { 1538 spdk_json_write_named_string(w, "alias_name", target->alias); 1539 } 1540 1541 spdk_json_write_named_array_begin(w, "pg_ig_maps"); 1542 TAILQ_FOREACH(pg_map, &target->pg_map_head, tailq) { 1543 TAILQ_FOREACH(ig_map, &pg_map->ig_map_head, tailq) { 1544 spdk_json_write_object_begin(w); 1545 spdk_json_write_named_int32(w, "pg_tag", pg_map->pg->tag); 1546 spdk_json_write_named_int32(w, "ig_tag", ig_map->ig->tag); 1547 spdk_json_write_object_end(w); 1548 } 1549 } 1550 spdk_json_write_array_end(w); 1551 1552 spdk_json_write_named_array_begin(w, "luns"); 1553 for (i = 0; i < SPDK_SCSI_DEV_MAX_LUN; i++) { 1554 struct spdk_scsi_lun *lun = spdk_scsi_dev_get_lun(target->dev, i); 1555 1556 if (lun) { 1557 spdk_json_write_object_begin(w); 1558 spdk_json_write_named_string(w, "bdev_name", spdk_scsi_lun_get_bdev_name(lun)); 1559 spdk_json_write_named_int32(w, "lun_id", spdk_scsi_lun_get_id(lun)); 1560 spdk_json_write_object_end(w); 1561 } 1562 } 1563 spdk_json_write_array_end(w); 1564 1565 spdk_json_write_named_int32(w, "queue_depth", target->queue_depth); 1566 1567 spdk_json_write_named_bool(w, "disable_chap", target->disable_chap); 1568 spdk_json_write_named_bool(w, "require_chap", target->require_chap); 1569 spdk_json_write_named_bool(w, "mutual_chap", target->mutual_chap); 1570 spdk_json_write_named_int32(w, "chap_group", target->chap_group); 1571 1572 spdk_json_write_named_bool(w, "header_digest", target->header_digest); 1573 spdk_json_write_named_bool(w, "data_digest", target->data_digest); 1574 1575 spdk_json_write_object_end(w); 1576 } 1577 1578 static void 1579 iscsi_tgt_node_config_json(struct spdk_iscsi_tgt_node *target, 1580 struct spdk_json_write_ctx *w) 1581 { 1582 spdk_json_write_object_begin(w); 1583 1584 spdk_json_write_named_string(w, "method", "iscsi_create_target_node"); 1585 1586 spdk_json_write_name(w, "params"); 1587 iscsi_tgt_node_info_json(target, w); 1588 1589 spdk_json_write_object_end(w); 1590 } 1591 1592 void 1593 spdk_iscsi_tgt_nodes_info_json(struct spdk_json_write_ctx *w) 1594 { 1595 struct spdk_iscsi_tgt_node *target; 1596 1597 TAILQ_FOREACH(target, &g_spdk_iscsi.target_head, tailq) { 1598 iscsi_tgt_node_info_json(target, w); 1599 } 1600 } 1601 1602 void 1603 spdk_iscsi_tgt_nodes_config_json(struct spdk_json_write_ctx *w) 1604 { 1605 struct spdk_iscsi_tgt_node *target; 1606 1607 TAILQ_FOREACH(target, &g_spdk_iscsi.target_head, tailq) { 1608 iscsi_tgt_node_config_json(target, w); 1609 } 1610 } 1611