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 spdk_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 spdk_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 spdk_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 (spdk_iscsi_ipv6_netmask_allow_addr(netmask, addr)) { 177 return true; 178 } 179 } else { 180 /* IPv4 */ 181 if (spdk_iscsi_ipv4_netmask_allow_addr(netmask, addr)) { 182 return true; 183 } 184 } 185 return false; 186 } 187 188 static bool 189 spdk_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 (spdk_iscsi_netmask_allow_addr(imask->mask, addr)) { 198 return true; 199 } 200 } 201 return false; 202 } 203 204 static int 205 spdk_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 spdk_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 = spdk_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 = spdk_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 (spdk_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 spdk_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 = spdk_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 = spdk_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 spdk_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 spdk_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 spdk_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 spdk_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 (spdk_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 _spdk_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 spdk_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 = spdk_iscsi_pg_map_find_ig_map(pg_map, ig); 494 if (ig_map == NULL) { 495 return -ENOENT; 496 } 497 498 _spdk_iscsi_pg_map_delete_ig_map(pg_map, ig_map); 499 return 0; 500 } 501 502 static void 503 spdk_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 _spdk_iscsi_pg_map_delete_ig_map(pg_map, ig_map); 509 } 510 } 511 512 static struct spdk_iscsi_pg_map * 513 spdk_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 spdk_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 (spdk_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 _spdk_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 spdk_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 = spdk_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 spdk_iscsi_pg_map_delete_all_ig_maps(pg_map); 598 _spdk_iscsi_tgt_node_delete_pg_map(target, pg_map); 599 return 0; 600 } 601 602 static void 603 spdk_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 spdk_iscsi_pg_map_delete_ig_map(pg_map, ig); 610 if (pg_map->num_ig_maps == 0) { 611 _spdk_iscsi_tgt_node_delete_pg_map(target, pg_map); 612 } 613 } 614 } 615 616 static void 617 spdk_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 spdk_iscsi_pg_map_delete_all_ig_maps(pg_map); 623 _spdk_iscsi_tgt_node_delete_pg_map(target, pg_map); 624 } 625 } 626 627 static void 628 spdk_iscsi_tgt_node_destruct(struct spdk_iscsi_tgt_node *target) 629 { 630 if (target == NULL) { 631 return; 632 } 633 634 free(target->name); 635 free(target->alias); 636 spdk_iscsi_tgt_node_delete_all_pg_maps(target); 637 spdk_scsi_dev_destruct(target->dev); 638 639 pthread_mutex_destroy(&target->mutex); 640 free(target); 641 } 642 643 static int 644 spdk_iscsi_tgt_node_delete_pg_ig_map(struct spdk_iscsi_tgt_node *target, 645 int pg_tag, int ig_tag) 646 { 647 struct spdk_iscsi_portal_grp *pg; 648 struct spdk_iscsi_init_grp *ig; 649 struct spdk_iscsi_pg_map *pg_map; 650 struct spdk_iscsi_ig_map *ig_map; 651 652 pg = spdk_iscsi_portal_grp_find_by_tag(pg_tag); 653 if (pg == NULL) { 654 SPDK_ERRLOG("%s: PortalGroup%d not found\n", target->name, pg_tag); 655 return -ENOENT; 656 } 657 ig = spdk_iscsi_init_grp_find_by_tag(ig_tag); 658 if (ig == NULL) { 659 SPDK_ERRLOG("%s: InitiatorGroup%d not found\n", target->name, ig_tag); 660 return -ENOENT; 661 } 662 663 pg_map = spdk_iscsi_tgt_node_find_pg_map(target, pg); 664 if (pg_map == NULL) { 665 SPDK_ERRLOG("%s: PortalGroup%d is not mapped\n", target->name, pg_tag); 666 return -ENOENT; 667 } 668 ig_map = spdk_iscsi_pg_map_find_ig_map(pg_map, ig); 669 if (ig_map == NULL) { 670 SPDK_ERRLOG("%s: InitiatorGroup%d is not mapped\n", target->name, pg_tag); 671 return -ENOENT; 672 } 673 674 _spdk_iscsi_pg_map_delete_ig_map(pg_map, ig_map); 675 if (pg_map->num_ig_maps == 0) { 676 _spdk_iscsi_tgt_node_delete_pg_map(target, pg_map); 677 } 678 679 return 0; 680 } 681 682 static int 683 spdk_iscsi_tgt_node_add_pg_ig_map(struct spdk_iscsi_tgt_node *target, 684 int pg_tag, int ig_tag) 685 { 686 struct spdk_iscsi_portal_grp *pg; 687 struct spdk_iscsi_pg_map *pg_map; 688 struct spdk_iscsi_init_grp *ig; 689 struct spdk_iscsi_ig_map *ig_map; 690 bool new_pg_map = false; 691 692 pg = spdk_iscsi_portal_grp_find_by_tag(pg_tag); 693 if (pg == NULL) { 694 SPDK_ERRLOG("%s: PortalGroup%d not found\n", target->name, pg_tag); 695 return -ENOENT; 696 } 697 ig = spdk_iscsi_init_grp_find_by_tag(ig_tag); 698 if (ig == NULL) { 699 SPDK_ERRLOG("%s: InitiatorGroup%d not found\n", target->name, ig_tag); 700 return -ENOENT; 701 } 702 703 /* get existing pg_map or create new pg_map and add it to target */ 704 pg_map = spdk_iscsi_tgt_node_find_pg_map(target, pg); 705 if (pg_map == NULL) { 706 pg_map = spdk_iscsi_tgt_node_add_pg_map(target, pg); 707 if (pg_map == NULL) { 708 goto failed; 709 } 710 new_pg_map = true; 711 } 712 713 /* create new ig_map and add it to pg_map */ 714 ig_map = spdk_iscsi_pg_map_add_ig_map(pg_map, ig); 715 if (ig_map == NULL) { 716 goto failed; 717 } 718 719 return 0; 720 721 failed: 722 if (new_pg_map) { 723 _spdk_iscsi_tgt_node_delete_pg_map(target, pg_map); 724 } 725 726 return -1; 727 } 728 729 int 730 spdk_iscsi_tgt_node_add_pg_ig_maps(struct spdk_iscsi_tgt_node *target, 731 int *pg_tag_list, int *ig_tag_list, uint16_t num_maps) 732 { 733 uint16_t i; 734 int rc; 735 736 pthread_mutex_lock(&g_spdk_iscsi.mutex); 737 for (i = 0; i < num_maps; i++) { 738 rc = spdk_iscsi_tgt_node_add_pg_ig_map(target, pg_tag_list[i], 739 ig_tag_list[i]); 740 if (rc != 0) { 741 SPDK_ERRLOG("could not add map to target\n"); 742 goto invalid; 743 } 744 } 745 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 746 return 0; 747 748 invalid: 749 for (; i > 0; --i) { 750 spdk_iscsi_tgt_node_delete_pg_ig_map(target, pg_tag_list[i - 1], 751 ig_tag_list[i - 1]); 752 } 753 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 754 return -1; 755 } 756 757 int 758 spdk_iscsi_tgt_node_delete_pg_ig_maps(struct spdk_iscsi_tgt_node *target, 759 int *pg_tag_list, int *ig_tag_list, uint16_t num_maps) 760 { 761 uint16_t i; 762 int rc; 763 764 pthread_mutex_lock(&g_spdk_iscsi.mutex); 765 for (i = 0; i < num_maps; i++) { 766 rc = spdk_iscsi_tgt_node_delete_pg_ig_map(target, pg_tag_list[i], 767 ig_tag_list[i]); 768 if (rc != 0) { 769 SPDK_ERRLOG("could not delete map from target\n"); 770 goto invalid; 771 } 772 } 773 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 774 return 0; 775 776 invalid: 777 for (; i > 0; --i) { 778 rc = spdk_iscsi_tgt_node_add_pg_ig_map(target, pg_tag_list[i - 1], 779 ig_tag_list[i - 1]); 780 if (rc != 0) { 781 spdk_iscsi_tgt_node_delete_all_pg_maps(target); 782 break; 783 } 784 } 785 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 786 return -1; 787 } 788 789 static int 790 spdk_check_iscsi_name(const char *name) 791 { 792 const unsigned char *up = (const unsigned char *) name; 793 size_t n; 794 795 /* valid iSCSI name no larger than 223 bytes */ 796 if (strlen(name) > MAX_TARGET_NAME) { 797 return -1; 798 } 799 800 /* valid iSCSI name? */ 801 for (n = 0; up[n] != 0; n++) { 802 if (up[n] > 0x00U && up[n] <= 0x2cU) { 803 return -1; 804 } 805 if (up[n] == 0x2fU) { 806 return -1; 807 } 808 if (up[n] >= 0x3bU && up[n] <= 0x40U) { 809 return -1; 810 } 811 if (up[n] >= 0x5bU && up[n] <= 0x60U) { 812 return -1; 813 } 814 if (up[n] >= 0x7bU && up[n] <= 0x7fU) { 815 return -1; 816 } 817 if (isspace(up[n])) { 818 return -1; 819 } 820 } 821 /* valid format? */ 822 if (strncasecmp(name, "iqn.", 4) == 0) { 823 /* iqn.YYYY-MM.reversed.domain.name */ 824 if (!isdigit(up[4]) || !isdigit(up[5]) || !isdigit(up[6]) 825 || !isdigit(up[7]) || up[8] != '-' || !isdigit(up[9]) 826 || !isdigit(up[10]) || up[11] != '.') { 827 SPDK_ERRLOG("invalid iqn format. " 828 "expect \"iqn.YYYY-MM.reversed.domain.name\"\n"); 829 return -1; 830 } 831 } else if (strncasecmp(name, "eui.", 4) == 0) { 832 /* EUI-64 -> 16bytes */ 833 /* XXX */ 834 } else if (strncasecmp(name, "naa.", 4) == 0) { 835 /* 64bit -> 16bytes, 128bit -> 32bytes */ 836 /* XXX */ 837 } 838 /* OK */ 839 return 0; 840 } 841 842 bool 843 spdk_iscsi_check_chap_params(bool disable, bool require, bool mutual, int group) 844 { 845 if (group < 0) { 846 SPDK_ERRLOG("Invalid auth group ID (%d)\n", group); 847 return false; 848 } 849 if ((!disable && !require && !mutual) || /* Auto */ 850 (disable && !require && !mutual) || /* None */ 851 (!disable && require && !mutual) || /* CHAP */ 852 (!disable && require && mutual)) { /* CHAP Mutual */ 853 return true; 854 } 855 SPDK_ERRLOG("Invalid combination of CHAP params (d=%d,r=%d,m=%d)\n", 856 disable, require, mutual); 857 return false; 858 } 859 860 _spdk_iscsi_tgt_node * 861 spdk_iscsi_tgt_node_construct(int target_index, 862 const char *name, const char *alias, 863 int *pg_tag_list, int *ig_tag_list, uint16_t num_maps, 864 const char *bdev_name_list[], int *lun_id_list, int num_luns, 865 int queue_depth, 866 bool disable_chap, bool require_chap, bool mutual_chap, int chap_group, 867 bool header_digest, bool data_digest) 868 { 869 char fullname[MAX_TMPBUF]; 870 struct spdk_iscsi_tgt_node *target; 871 int rc; 872 873 if (!spdk_iscsi_check_chap_params(disable_chap, require_chap, 874 mutual_chap, chap_group)) { 875 return NULL; 876 } 877 878 if (num_maps == 0) { 879 SPDK_ERRLOG("num_maps = 0\n"); 880 return NULL; 881 } 882 883 if (name == NULL) { 884 SPDK_ERRLOG("TargetName not found\n"); 885 return NULL; 886 } 887 888 if (strncasecmp(name, "iqn.", 4) != 0 889 && strncasecmp(name, "eui.", 4) != 0 890 && strncasecmp(name, "naa.", 4) != 0) { 891 snprintf(fullname, sizeof(fullname), "%s:%s", g_spdk_iscsi.nodebase, name); 892 } else { 893 snprintf(fullname, sizeof(fullname), "%s", name); 894 } 895 896 if (spdk_check_iscsi_name(fullname) != 0) { 897 SPDK_ERRLOG("TargetName %s contains an invalid character or format.\n", 898 name); 899 return NULL; 900 } 901 902 target = malloc(sizeof(*target)); 903 if (!target) { 904 SPDK_ERRLOG("could not allocate target\n"); 905 return NULL; 906 } 907 908 memset(target, 0, sizeof(*target)); 909 910 rc = pthread_mutex_init(&target->mutex, NULL); 911 if (rc != 0) { 912 SPDK_ERRLOG("tgt_node%d: mutex_init() failed\n", target->num); 913 spdk_iscsi_tgt_node_destruct(target); 914 return NULL; 915 } 916 917 target->num = target_index; 918 919 target->name = strdup(fullname); 920 if (!target->name) { 921 SPDK_ERRLOG("Could not allocate TargetName\n"); 922 spdk_iscsi_tgt_node_destruct(target); 923 return NULL; 924 } 925 926 if (alias == NULL) { 927 target->alias = NULL; 928 } else { 929 target->alias = strdup(alias); 930 if (!target->alias) { 931 SPDK_ERRLOG("Could not allocate TargetAlias\n"); 932 spdk_iscsi_tgt_node_destruct(target); 933 return NULL; 934 } 935 } 936 937 target->dev = spdk_scsi_dev_construct(fullname, bdev_name_list, lun_id_list, num_luns, 938 SPDK_SPC_PROTOCOL_IDENTIFIER_ISCSI, NULL, NULL); 939 if (!target->dev) { 940 SPDK_ERRLOG("Could not construct SCSI device\n"); 941 spdk_iscsi_tgt_node_destruct(target); 942 return NULL; 943 } 944 945 TAILQ_INIT(&target->pg_map_head); 946 rc = spdk_iscsi_tgt_node_add_pg_ig_maps(target, pg_tag_list, ig_tag_list, num_maps); 947 if (rc != 0) { 948 SPDK_ERRLOG("could not add map to target\n"); 949 spdk_iscsi_tgt_node_destruct(target); 950 return NULL; 951 } 952 953 target->disable_chap = disable_chap; 954 target->require_chap = require_chap; 955 target->mutual_chap = mutual_chap; 956 target->chap_group = chap_group; 957 target->header_digest = header_digest; 958 target->data_digest = data_digest; 959 960 if (queue_depth > 0 && ((uint32_t)queue_depth <= g_spdk_iscsi.MaxQueueDepth)) { 961 target->queue_depth = queue_depth; 962 } else { 963 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "QueueDepth %d is invalid and %d is used instead.\n", 964 queue_depth, g_spdk_iscsi.MaxQueueDepth); 965 target->queue_depth = g_spdk_iscsi.MaxQueueDepth; 966 } 967 968 rc = spdk_iscsi_tgt_node_register(target); 969 if (rc != 0) { 970 SPDK_ERRLOG("register target is failed\n"); 971 spdk_iscsi_tgt_node_destruct(target); 972 return NULL; 973 } 974 975 return target; 976 } 977 978 static int 979 spdk_iscsi_parse_tgt_node(struct spdk_conf_section *sp) 980 { 981 char buf[MAX_TMPBUF]; 982 struct spdk_iscsi_tgt_node *target; 983 int pg_tag_list[MAX_TARGET_MAP], ig_tag_list[MAX_TARGET_MAP]; 984 int num_target_maps; 985 const char *alias, *pg_tag, *ig_tag; 986 const char *ag_tag; 987 const char *val, *name; 988 int target_num, chap_group, pg_tag_i, ig_tag_i; 989 bool header_digest, data_digest; 990 bool disable_chap, require_chap, mutual_chap; 991 int i; 992 int lun_id_list[SPDK_SCSI_DEV_MAX_LUN]; 993 const char *bdev_name_list[SPDK_SCSI_DEV_MAX_LUN]; 994 int num_luns, queue_depth; 995 996 target_num = spdk_conf_section_get_num(sp); 997 998 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "add unit %d\n", target_num); 999 1000 data_digest = false; 1001 header_digest = false; 1002 1003 name = spdk_conf_section_get_val(sp, "TargetName"); 1004 1005 if (name == NULL) { 1006 SPDK_ERRLOG("tgt_node%d: TargetName not found\n", target_num); 1007 return -1; 1008 } 1009 1010 alias = spdk_conf_section_get_val(sp, "TargetAlias"); 1011 1012 /* Setup initiator and portal group mapping */ 1013 val = spdk_conf_section_get_val(sp, "Mapping"); 1014 if (val == NULL) { 1015 /* no map */ 1016 SPDK_ERRLOG("tgt_node%d: no Mapping\n", target_num); 1017 return -1; 1018 } 1019 1020 for (i = 0; i < MAX_TARGET_MAP; i++) { 1021 val = spdk_conf_section_get_nmval(sp, "Mapping", i, 0); 1022 if (val == NULL) { 1023 break; 1024 } 1025 pg_tag = spdk_conf_section_get_nmval(sp, "Mapping", i, 0); 1026 ig_tag = spdk_conf_section_get_nmval(sp, "Mapping", i, 1); 1027 if (pg_tag == NULL || ig_tag == NULL) { 1028 SPDK_ERRLOG("tgt_node%d: mapping error\n", target_num); 1029 return -1; 1030 } 1031 if (strncasecmp(pg_tag, "PortalGroup", 1032 strlen("PortalGroup")) != 0 1033 || sscanf(pg_tag, "%*[^0-9]%d", &pg_tag_i) != 1) { 1034 SPDK_ERRLOG("tgt_node%d: mapping portal error\n", target_num); 1035 return -1; 1036 } 1037 if (strncasecmp(ig_tag, "InitiatorGroup", 1038 strlen("InitiatorGroup")) != 0 1039 || sscanf(ig_tag, "%*[^0-9]%d", &ig_tag_i) != 1) { 1040 SPDK_ERRLOG("tgt_node%d: mapping initiator error\n", target_num); 1041 return -1; 1042 } 1043 if (pg_tag_i < 1 || ig_tag_i < 1) { 1044 SPDK_ERRLOG("tgt_node%d: invalid group tag\n", target_num); 1045 return -1; 1046 } 1047 pg_tag_list[i] = pg_tag_i; 1048 ig_tag_list[i] = ig_tag_i; 1049 } 1050 1051 num_target_maps = i; 1052 1053 /* Setup AuthMethod */ 1054 val = spdk_conf_section_get_val(sp, "AuthMethod"); 1055 disable_chap = false; 1056 require_chap = false; 1057 mutual_chap = false; 1058 if (val != NULL) { 1059 for (i = 0; ; i++) { 1060 val = spdk_conf_section_get_nmval(sp, "AuthMethod", 0, i); 1061 if (val == NULL) { 1062 break; 1063 } 1064 if (strcasecmp(val, "CHAP") == 0) { 1065 require_chap = true; 1066 } else if (strcasecmp(val, "Mutual") == 0) { 1067 mutual_chap = true; 1068 } else if (strcasecmp(val, "Auto") == 0) { 1069 disable_chap = false; 1070 require_chap = false; 1071 mutual_chap = false; 1072 } else if (strcasecmp(val, "None") == 0) { 1073 disable_chap = true; 1074 require_chap = false; 1075 mutual_chap = false; 1076 } else { 1077 SPDK_ERRLOG("tgt_node%d: unknown auth\n", target_num); 1078 return -1; 1079 } 1080 } 1081 if (mutual_chap && !require_chap) { 1082 SPDK_ERRLOG("tgt_node%d: Mutual but not CHAP\n", target_num); 1083 return -1; 1084 } 1085 } 1086 if (disable_chap) { 1087 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "AuthMethod None\n"); 1088 } else if (!require_chap) { 1089 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "AuthMethod Auto\n"); 1090 } else { 1091 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "AuthMethod CHAP %s\n", 1092 mutual_chap ? "Mutual" : ""); 1093 } 1094 1095 val = spdk_conf_section_get_val(sp, "AuthGroup"); 1096 if (val == NULL) { 1097 chap_group = 0; 1098 } else { 1099 ag_tag = val; 1100 if (strcasecmp(ag_tag, "None") == 0) { 1101 chap_group = 0; 1102 } else { 1103 if (strncasecmp(ag_tag, "AuthGroup", 1104 strlen("AuthGroup")) != 0 1105 || sscanf(ag_tag, "%*[^0-9]%d", &chap_group) != 1) { 1106 SPDK_ERRLOG("tgt_node%d: auth group error\n", target_num); 1107 return -1; 1108 } 1109 if (chap_group == 0) { 1110 SPDK_ERRLOG("tgt_node%d: invalid auth group 0\n", target_num); 1111 return -1; 1112 } 1113 } 1114 } 1115 if (chap_group == 0) { 1116 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "AuthGroup None\n"); 1117 } else { 1118 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "AuthGroup AuthGroup%d\n", chap_group); 1119 } 1120 1121 val = spdk_conf_section_get_val(sp, "UseDigest"); 1122 if (val != NULL) { 1123 for (i = 0; ; i++) { 1124 val = spdk_conf_section_get_nmval(sp, "UseDigest", 0, i); 1125 if (val == NULL) { 1126 break; 1127 } 1128 if (strcasecmp(val, "Header") == 0) { 1129 header_digest = true; 1130 } else if (strcasecmp(val, "Data") == 0) { 1131 data_digest = true; 1132 } else if (strcasecmp(val, "Auto") == 0) { 1133 header_digest = false; 1134 data_digest = false; 1135 } else { 1136 SPDK_ERRLOG("tgt_node%d: unknown digest\n", target_num); 1137 return -1; 1138 } 1139 } 1140 } 1141 if (!header_digest && !data_digest) { 1142 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "UseDigest Auto\n"); 1143 } else { 1144 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "UseDigest %s %s\n", 1145 header_digest ? "Header" : "", 1146 data_digest ? "Data" : ""); 1147 } 1148 1149 val = spdk_conf_section_get_val(sp, "QueueDepth"); 1150 if (val == NULL) { 1151 queue_depth = g_spdk_iscsi.MaxQueueDepth; 1152 } else { 1153 queue_depth = (int) strtol(val, NULL, 10); 1154 } 1155 1156 num_luns = 0; 1157 1158 for (i = 0; i < SPDK_SCSI_DEV_MAX_LUN; i++) { 1159 snprintf(buf, sizeof(buf), "LUN%d", i); 1160 val = spdk_conf_section_get_val(sp, buf); 1161 if (val == NULL) { 1162 continue; 1163 } 1164 1165 bdev_name_list[num_luns] = val; 1166 lun_id_list[num_luns] = i; 1167 num_luns++; 1168 } 1169 1170 if (num_luns == 0) { 1171 SPDK_ERRLOG("tgt_node%d: No LUN specified for target %s.\n", target_num, name); 1172 return -1; 1173 } 1174 1175 target = spdk_iscsi_tgt_node_construct(target_num, name, alias, 1176 pg_tag_list, ig_tag_list, num_target_maps, 1177 bdev_name_list, lun_id_list, num_luns, queue_depth, 1178 disable_chap, require_chap, mutual_chap, chap_group, 1179 header_digest, data_digest); 1180 1181 if (target == NULL) { 1182 SPDK_ERRLOG("tgt_node%d: add_iscsi_target_node error\n", target_num); 1183 return -1; 1184 } 1185 1186 for (i = 0; i < SPDK_SCSI_DEV_MAX_LUN; i++) { 1187 struct spdk_scsi_lun *lun = spdk_scsi_dev_get_lun(target->dev, i); 1188 1189 if (lun) { 1190 SPDK_INFOLOG(SPDK_LOG_ISCSI, "device %d: LUN%d %s\n", 1191 spdk_scsi_dev_get_id(target->dev), 1192 spdk_scsi_lun_get_id(lun), 1193 spdk_scsi_lun_get_bdev_name(lun)); 1194 } 1195 } 1196 1197 return 0; 1198 } 1199 1200 int spdk_iscsi_parse_tgt_nodes(void) 1201 { 1202 struct spdk_conf_section *sp; 1203 int rc; 1204 1205 SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "spdk_iscsi_parse_tgt_nodes\n"); 1206 1207 sp = spdk_conf_first_section(NULL); 1208 while (sp != NULL) { 1209 if (spdk_conf_section_match_prefix(sp, "TargetNode")) { 1210 int tag = spdk_conf_section_get_num(sp); 1211 1212 if (tag > SPDK_TN_TAG_MAX) { 1213 SPDK_ERRLOG("tag %d is invalid\n", tag); 1214 return -1; 1215 } 1216 rc = spdk_iscsi_parse_tgt_node(sp); 1217 if (rc < 0) { 1218 SPDK_ERRLOG("spdk_iscsi_parse_tgt_node() failed\n"); 1219 return -1; 1220 } 1221 } 1222 sp = spdk_conf_next_section(sp); 1223 } 1224 return 0; 1225 } 1226 1227 void 1228 spdk_iscsi_shutdown_tgt_nodes(void) 1229 { 1230 struct spdk_iscsi_tgt_node *target, *tmp; 1231 1232 pthread_mutex_lock(&g_spdk_iscsi.mutex); 1233 TAILQ_FOREACH_SAFE(target, &g_spdk_iscsi.target_head, tailq, tmp) { 1234 TAILQ_REMOVE(&g_spdk_iscsi.target_head, target, tailq); 1235 spdk_iscsi_tgt_node_destruct(target); 1236 } 1237 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 1238 } 1239 1240 int 1241 spdk_iscsi_shutdown_tgt_node_by_name(const char *target_name) 1242 { 1243 struct spdk_iscsi_tgt_node *target; 1244 1245 pthread_mutex_lock(&g_spdk_iscsi.mutex); 1246 target = spdk_iscsi_find_tgt_node(target_name); 1247 if (target != NULL) { 1248 spdk_iscsi_tgt_node_unregister(target); 1249 spdk_iscsi_tgt_node_destruct(target); 1250 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 1251 1252 return 0; 1253 } 1254 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 1255 1256 return -ENOENT; 1257 } 1258 1259 int 1260 spdk_iscsi_tgt_node_cleanup_luns(struct spdk_iscsi_conn *conn, 1261 struct spdk_iscsi_tgt_node *target) 1262 { 1263 int i; 1264 struct spdk_iscsi_task *task; 1265 1266 for (i = 0; i < SPDK_SCSI_DEV_MAX_LUN; i++) { 1267 struct spdk_scsi_lun *lun = spdk_scsi_dev_get_lun(target->dev, i); 1268 1269 if (!lun) { 1270 continue; 1271 } 1272 1273 /* we create a fake management task per LUN to cleanup */ 1274 task = spdk_iscsi_task_get(conn, NULL, spdk_iscsi_task_mgmt_cpl); 1275 if (!task) { 1276 SPDK_ERRLOG("Unable to acquire task\n"); 1277 return -1; 1278 } 1279 1280 task->scsi.target_port = conn->target_port; 1281 task->scsi.initiator_port = conn->initiator_port; 1282 task->scsi.lun = lun; 1283 1284 spdk_iscsi_op_abort_task_set(task, SPDK_SCSI_TASK_FUNC_LUN_RESET); 1285 } 1286 1287 return 0; 1288 } 1289 1290 void spdk_iscsi_tgt_node_delete_map(struct spdk_iscsi_portal_grp *portal_group, 1291 struct spdk_iscsi_init_grp *initiator_group) 1292 { 1293 struct spdk_iscsi_tgt_node *target; 1294 1295 pthread_mutex_lock(&g_spdk_iscsi.mutex); 1296 TAILQ_FOREACH(target, &g_spdk_iscsi.target_head, tailq) { 1297 if (portal_group) { 1298 spdk_iscsi_tgt_node_delete_pg_map(target, portal_group); 1299 } 1300 if (initiator_group) { 1301 spdk_iscsi_tgt_node_delete_ig_maps(target, initiator_group); 1302 } 1303 } 1304 pthread_mutex_unlock(&g_spdk_iscsi.mutex); 1305 } 1306 1307 int 1308 spdk_iscsi_tgt_node_add_lun(struct spdk_iscsi_tgt_node *target, 1309 const char *bdev_name, int lun_id) 1310 { 1311 struct spdk_scsi_dev *dev; 1312 int rc; 1313 1314 if (target->num_active_conns > 0) { 1315 SPDK_ERRLOG("Target has active connections (count=%d)\n", 1316 target->num_active_conns); 1317 return -1; 1318 } 1319 1320 if (lun_id < -1 || lun_id >= SPDK_SCSI_DEV_MAX_LUN) { 1321 SPDK_ERRLOG("Specified LUN ID (%d) is invalid\n", lun_id); 1322 return -1; 1323 } 1324 1325 dev = target->dev; 1326 if (dev == NULL) { 1327 SPDK_ERRLOG("SCSI device is not found\n"); 1328 return -1; 1329 } 1330 1331 rc = spdk_scsi_dev_add_lun(dev, bdev_name, lun_id, NULL, NULL); 1332 if (rc != 0) { 1333 SPDK_ERRLOG("spdk_scsi_dev_add_lun failed\n"); 1334 return -1; 1335 } 1336 1337 return 0; 1338 } 1339 1340 int 1341 spdk_iscsi_tgt_node_set_chap_params(struct spdk_iscsi_tgt_node *target, 1342 bool disable_chap, bool require_chap, 1343 bool mutual_chap, int32_t chap_group) 1344 { 1345 if (!spdk_iscsi_check_chap_params(disable_chap, require_chap, 1346 mutual_chap, chap_group)) { 1347 return -EINVAL; 1348 } 1349 1350 pthread_mutex_lock(&target->mutex); 1351 target->disable_chap = disable_chap; 1352 target->require_chap = require_chap; 1353 target->mutual_chap = mutual_chap; 1354 target->chap_group = chap_group; 1355 pthread_mutex_unlock(&target->mutex); 1356 1357 return 0; 1358 } 1359 1360 static const char *target_nodes_section = \ 1361 "\n" 1362 "# Users should change the TargetNode section(s) below to match the\n" 1363 "# desired iSCSI target node configuration.\n" 1364 "# TargetName, Mapping, LUN0 are minimum required\n"; 1365 1366 #define TARGET_NODE_TMPL \ 1367 "[TargetNode%d]\n" \ 1368 " Comment \"Target%d\"\n" \ 1369 " TargetName %s\n" \ 1370 " TargetAlias \"%s\"\n" 1371 1372 #define TARGET_NODE_PGIG_MAPPING_TMPL \ 1373 " Mapping PortalGroup%d InitiatorGroup%d\n" 1374 1375 #define TARGET_NODE_AUTH_TMPL \ 1376 " AuthMethod %s\n" \ 1377 " AuthGroup %s\n" \ 1378 " UseDigest %s\n" 1379 1380 #define TARGET_NODE_QD_TMPL \ 1381 " QueueDepth %d\n\n" 1382 1383 #define TARGET_NODE_LUN_TMPL \ 1384 " LUN%d %s\n" 1385 1386 void 1387 spdk_iscsi_tgt_nodes_config_text(FILE *fp) 1388 { 1389 int l = 0; 1390 struct spdk_scsi_dev *dev = NULL; 1391 struct spdk_iscsi_tgt_node *target = NULL; 1392 struct spdk_iscsi_pg_map *pg_map; 1393 struct spdk_iscsi_ig_map *ig_map; 1394 1395 /* Create target nodes section */ 1396 fprintf(fp, "%s", target_nodes_section); 1397 1398 TAILQ_FOREACH(target, &g_spdk_iscsi.target_head, tailq) { 1399 int idx; 1400 const char *authmethod = "None"; 1401 char authgroup[32] = "None"; 1402 const char *usedigest = "Auto"; 1403 1404 dev = target->dev; 1405 if (NULL == dev) { continue; } 1406 1407 idx = target->num; 1408 fprintf(fp, TARGET_NODE_TMPL, idx, idx, target->name, spdk_scsi_dev_get_name(dev)); 1409 1410 TAILQ_FOREACH(pg_map, &target->pg_map_head, tailq) { 1411 TAILQ_FOREACH(ig_map, &pg_map->ig_map_head, tailq) { 1412 fprintf(fp, TARGET_NODE_PGIG_MAPPING_TMPL, 1413 pg_map->pg->tag, 1414 ig_map->ig->tag); 1415 } 1416 } 1417 1418 if (target->disable_chap) { 1419 authmethod = "None"; 1420 } else if (!target->require_chap) { 1421 authmethod = "Auto"; 1422 } else if (target->mutual_chap) { 1423 authmethod = "CHAP Mutual"; 1424 } else { 1425 authmethod = "CHAP"; 1426 } 1427 1428 if (target->chap_group > 0) { 1429 snprintf(authgroup, sizeof(authgroup), "AuthGroup%d", target->chap_group); 1430 } 1431 1432 if (target->header_digest) { 1433 usedigest = "Header"; 1434 } else if (target->data_digest) { 1435 usedigest = "Data"; 1436 } 1437 1438 fprintf(fp, TARGET_NODE_AUTH_TMPL, 1439 authmethod, authgroup, usedigest); 1440 1441 for (l = 0; l < SPDK_SCSI_DEV_MAX_LUN; l++) { 1442 struct spdk_scsi_lun *lun = spdk_scsi_dev_get_lun(dev, l); 1443 1444 if (!lun) { 1445 continue; 1446 } 1447 1448 fprintf(fp, TARGET_NODE_LUN_TMPL, 1449 spdk_scsi_lun_get_id(lun), 1450 spdk_scsi_lun_get_bdev_name(lun)); 1451 } 1452 1453 fprintf(fp, TARGET_NODE_QD_TMPL, 1454 target->queue_depth); 1455 } 1456 } 1457 1458 static void 1459 spdk_iscsi_tgt_node_info_json(struct spdk_iscsi_tgt_node *target, 1460 struct spdk_json_write_ctx *w) 1461 { 1462 struct spdk_iscsi_pg_map *pg_map; 1463 struct spdk_iscsi_ig_map *ig_map; 1464 int i; 1465 1466 spdk_json_write_object_begin(w); 1467 1468 spdk_json_write_named_string(w, "name", target->name); 1469 1470 if (target->alias) { 1471 spdk_json_write_named_string(w, "alias_name", target->alias); 1472 } 1473 1474 spdk_json_write_named_array_begin(w, "pg_ig_maps"); 1475 TAILQ_FOREACH(pg_map, &target->pg_map_head, tailq) { 1476 TAILQ_FOREACH(ig_map, &pg_map->ig_map_head, tailq) { 1477 spdk_json_write_object_begin(w); 1478 spdk_json_write_named_int32(w, "pg_tag", pg_map->pg->tag); 1479 spdk_json_write_named_int32(w, "ig_tag", ig_map->ig->tag); 1480 spdk_json_write_object_end(w); 1481 } 1482 } 1483 spdk_json_write_array_end(w); 1484 1485 spdk_json_write_named_array_begin(w, "luns"); 1486 for (i = 0; i < SPDK_SCSI_DEV_MAX_LUN; i++) { 1487 struct spdk_scsi_lun *lun = spdk_scsi_dev_get_lun(target->dev, i); 1488 1489 if (lun) { 1490 spdk_json_write_object_begin(w); 1491 spdk_json_write_named_string(w, "bdev_name", spdk_scsi_lun_get_bdev_name(lun)); 1492 spdk_json_write_named_int32(w, "lun_id", spdk_scsi_lun_get_id(lun)); 1493 spdk_json_write_object_end(w); 1494 } 1495 } 1496 spdk_json_write_array_end(w); 1497 1498 spdk_json_write_named_int32(w, "queue_depth", target->queue_depth); 1499 1500 spdk_json_write_named_bool(w, "disable_chap", target->disable_chap); 1501 spdk_json_write_named_bool(w, "require_chap", target->require_chap); 1502 spdk_json_write_named_bool(w, "mutual_chap", target->mutual_chap); 1503 spdk_json_write_named_int32(w, "chap_group", target->chap_group); 1504 1505 spdk_json_write_named_bool(w, "header_digest", target->header_digest); 1506 spdk_json_write_named_bool(w, "data_digest", target->data_digest); 1507 1508 spdk_json_write_object_end(w); 1509 } 1510 1511 static void 1512 spdk_iscsi_tgt_node_config_json(struct spdk_iscsi_tgt_node *target, 1513 struct spdk_json_write_ctx *w) 1514 { 1515 spdk_json_write_object_begin(w); 1516 1517 spdk_json_write_named_string(w, "method", "construct_target_node"); 1518 1519 spdk_json_write_name(w, "params"); 1520 spdk_iscsi_tgt_node_info_json(target, w); 1521 1522 spdk_json_write_object_end(w); 1523 } 1524 1525 void 1526 spdk_iscsi_tgt_nodes_info_json(struct spdk_json_write_ctx *w) 1527 { 1528 struct spdk_iscsi_tgt_node *target; 1529 1530 TAILQ_FOREACH(target, &g_spdk_iscsi.target_head, tailq) { 1531 spdk_iscsi_tgt_node_info_json(target, w); 1532 } 1533 } 1534 1535 void 1536 spdk_iscsi_tgt_nodes_config_json(struct spdk_json_write_ctx *w) 1537 { 1538 struct spdk_iscsi_tgt_node *target; 1539 1540 TAILQ_FOREACH(target, &g_spdk_iscsi.target_head, tailq) { 1541 spdk_iscsi_tgt_node_config_json(target, w); 1542 } 1543 } 1544