1 /*- 2 * Copyright (c) 2012 The FreeBSD Foundation 3 * All rights reserved. 4 * 5 * This software was developed by Edward Tomasz Napierala under sponsorship 6 * from the FreeBSD Foundation. 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 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 */ 30 31 #include <sys/cdefs.h> 32 __FBSDID("$FreeBSD$"); 33 34 #include <sys/ioctl.h> 35 #include <sys/param.h> 36 #include <sys/linker.h> 37 #include <assert.h> 38 #include <ctype.h> 39 #include <errno.h> 40 #include <fcntl.h> 41 #include <limits.h> 42 #include <stdio.h> 43 #include <stdlib.h> 44 #include <string.h> 45 #include <unistd.h> 46 #include <libxo/xo.h> 47 48 #include <iscsi_ioctl.h> 49 #include "iscsictl.h" 50 51 struct conf * 52 conf_new(void) 53 { 54 struct conf *conf; 55 56 conf = calloc(1, sizeof(*conf)); 57 if (conf == NULL) 58 xo_err(1, "calloc"); 59 60 TAILQ_INIT(&conf->conf_targets); 61 62 return (conf); 63 } 64 65 struct target * 66 target_find(struct conf *conf, const char *nickname) 67 { 68 struct target *targ; 69 70 TAILQ_FOREACH(targ, &conf->conf_targets, t_next) { 71 if (targ->t_nickname != NULL && 72 strcasecmp(targ->t_nickname, nickname) == 0) 73 return (targ); 74 } 75 76 return (NULL); 77 } 78 79 struct target * 80 target_new(struct conf *conf) 81 { 82 struct target *targ; 83 84 targ = calloc(1, sizeof(*targ)); 85 if (targ == NULL) 86 xo_err(1, "calloc"); 87 targ->t_conf = conf; 88 TAILQ_INSERT_TAIL(&conf->conf_targets, targ, t_next); 89 90 return (targ); 91 } 92 93 void 94 target_delete(struct target *targ) 95 { 96 97 TAILQ_REMOVE(&targ->t_conf->conf_targets, targ, t_next); 98 free(targ); 99 } 100 101 static char * 102 default_initiator_name(void) 103 { 104 char *name; 105 size_t namelen; 106 int error; 107 108 namelen = _POSIX_HOST_NAME_MAX + strlen(DEFAULT_IQN); 109 110 name = calloc(1, namelen + 1); 111 if (name == NULL) 112 xo_err(1, "calloc"); 113 strcpy(name, DEFAULT_IQN); 114 error = gethostname(name + strlen(DEFAULT_IQN), 115 namelen - strlen(DEFAULT_IQN)); 116 if (error != 0) 117 xo_err(1, "gethostname"); 118 119 return (name); 120 } 121 122 static bool 123 valid_hex(const char ch) 124 { 125 switch (ch) { 126 case '0': 127 case '1': 128 case '2': 129 case '3': 130 case '4': 131 case '5': 132 case '6': 133 case '7': 134 case '8': 135 case '9': 136 case 'a': 137 case 'A': 138 case 'b': 139 case 'B': 140 case 'c': 141 case 'C': 142 case 'd': 143 case 'D': 144 case 'e': 145 case 'E': 146 case 'f': 147 case 'F': 148 return (true); 149 default: 150 return (false); 151 } 152 } 153 154 int 155 parse_enable(const char *enable) 156 { 157 if (enable == NULL) 158 return (ENABLE_UNSPECIFIED); 159 160 if (strcasecmp(enable, "on") == 0 || 161 strcasecmp(enable, "yes") == 0) 162 return (ENABLE_ON); 163 164 if (strcasecmp(enable, "off") == 0 || 165 strcasecmp(enable, "no") == 0) 166 return (ENABLE_OFF); 167 168 return (ENABLE_UNSPECIFIED); 169 } 170 171 bool 172 valid_iscsi_name(const char *name) 173 { 174 int i; 175 176 if (strlen(name) >= MAX_NAME_LEN) { 177 xo_warnx("overlong name for \"%s\"; max length allowed " 178 "by iSCSI specification is %d characters", 179 name, MAX_NAME_LEN); 180 return (false); 181 } 182 183 /* 184 * In the cases below, we don't return an error, just in case the admin 185 * was right, and we're wrong. 186 */ 187 if (strncasecmp(name, "iqn.", strlen("iqn.")) == 0) { 188 for (i = strlen("iqn."); name[i] != '\0'; i++) { 189 /* 190 * XXX: We should verify UTF-8 normalisation, as defined 191 * by 3.2.6.2: iSCSI Name Encoding. 192 */ 193 if (isalnum(name[i])) 194 continue; 195 if (name[i] == '-' || name[i] == '.' || name[i] == ':') 196 continue; 197 xo_warnx("invalid character \"%c\" in iSCSI name " 198 "\"%s\"; allowed characters are letters, digits, " 199 "'-', '.', and ':'", name[i], name); 200 break; 201 } 202 /* 203 * XXX: Check more stuff: valid date and a valid reversed domain. 204 */ 205 } else if (strncasecmp(name, "eui.", strlen("eui.")) == 0) { 206 if (strlen(name) != strlen("eui.") + 16) 207 xo_warnx("invalid iSCSI name \"%s\"; the \"eui.\" " 208 "should be followed by exactly 16 hexadecimal " 209 "digits", name); 210 for (i = strlen("eui."); name[i] != '\0'; i++) { 211 if (!valid_hex(name[i])) { 212 xo_warnx("invalid character \"%c\" in iSCSI " 213 "name \"%s\"; allowed characters are 1-9 " 214 "and A-F", name[i], name); 215 break; 216 } 217 } 218 } else if (strncasecmp(name, "naa.", strlen("naa.")) == 0) { 219 if (strlen(name) > strlen("naa.") + 32) 220 xo_warnx("invalid iSCSI name \"%s\"; the \"naa.\" " 221 "should be followed by at most 32 hexadecimal " 222 "digits", name); 223 for (i = strlen("naa."); name[i] != '\0'; i++) { 224 if (!valid_hex(name[i])) { 225 xo_warnx("invalid character \"%c\" in ISCSI " 226 "name \"%s\"; allowed characters are 1-9 " 227 "and A-F", name[i], name); 228 break; 229 } 230 } 231 } else { 232 xo_warnx("invalid iSCSI name \"%s\"; should start with " 233 "either \".iqn\", \"eui.\", or \"naa.\"", 234 name); 235 } 236 return (true); 237 } 238 239 void 240 conf_verify(struct conf *conf) 241 { 242 struct target *targ; 243 244 TAILQ_FOREACH(targ, &conf->conf_targets, t_next) { 245 assert(targ->t_nickname != NULL); 246 if (targ->t_session_type == SESSION_TYPE_UNSPECIFIED) 247 targ->t_session_type = SESSION_TYPE_NORMAL; 248 if (targ->t_session_type == SESSION_TYPE_NORMAL && 249 targ->t_name == NULL) 250 xo_errx(1, "missing TargetName for target \"%s\"", 251 targ->t_nickname); 252 if (targ->t_session_type == SESSION_TYPE_DISCOVERY && 253 targ->t_name != NULL) 254 xo_errx(1, "cannot specify TargetName for discovery " 255 "sessions for target \"%s\"", targ->t_nickname); 256 if (targ->t_name != NULL) { 257 if (valid_iscsi_name(targ->t_name) == false) 258 xo_errx(1, "invalid target name \"%s\"", 259 targ->t_name); 260 } 261 if (targ->t_protocol == PROTOCOL_UNSPECIFIED) 262 targ->t_protocol = PROTOCOL_ISCSI; 263 if (targ->t_address == NULL) 264 xo_errx(1, "missing TargetAddress for target \"%s\"", 265 targ->t_nickname); 266 if (targ->t_initiator_name == NULL) 267 targ->t_initiator_name = default_initiator_name(); 268 if (valid_iscsi_name(targ->t_initiator_name) == false) 269 xo_errx(1, "invalid initiator name \"%s\"", 270 targ->t_initiator_name); 271 if (targ->t_header_digest == DIGEST_UNSPECIFIED) 272 targ->t_header_digest = DIGEST_NONE; 273 if (targ->t_data_digest == DIGEST_UNSPECIFIED) 274 targ->t_data_digest = DIGEST_NONE; 275 if (targ->t_auth_method == AUTH_METHOD_UNSPECIFIED) { 276 if (targ->t_user != NULL || targ->t_secret != NULL || 277 targ->t_mutual_user != NULL || 278 targ->t_mutual_secret != NULL) 279 targ->t_auth_method = 280 AUTH_METHOD_CHAP; 281 else 282 targ->t_auth_method = 283 AUTH_METHOD_NONE; 284 } 285 if (targ->t_auth_method == AUTH_METHOD_CHAP) { 286 if (targ->t_user == NULL) { 287 xo_errx(1, "missing chapIName for target \"%s\"", 288 targ->t_nickname); 289 } 290 if (targ->t_secret == NULL) 291 xo_errx(1, "missing chapSecret for target \"%s\"", 292 targ->t_nickname); 293 if (targ->t_mutual_user != NULL || 294 targ->t_mutual_secret != NULL) { 295 if (targ->t_mutual_user == NULL) 296 xo_errx(1, "missing tgtChapName for " 297 "target \"%s\"", targ->t_nickname); 298 if (targ->t_mutual_secret == NULL) 299 xo_errx(1, "missing tgtChapSecret for " 300 "target \"%s\"", targ->t_nickname); 301 } 302 } 303 } 304 } 305 306 static void 307 conf_from_target(struct iscsi_session_conf *conf, 308 const struct target *targ) 309 { 310 memset(conf, 0, sizeof(*conf)); 311 312 /* 313 * XXX: Check bounds and return error instead of silently truncating. 314 */ 315 if (targ->t_initiator_name != NULL) 316 strlcpy(conf->isc_initiator, targ->t_initiator_name, 317 sizeof(conf->isc_initiator)); 318 if (targ->t_initiator_address != NULL) 319 strlcpy(conf->isc_initiator_addr, targ->t_initiator_address, 320 sizeof(conf->isc_initiator_addr)); 321 if (targ->t_initiator_alias != NULL) 322 strlcpy(conf->isc_initiator_alias, targ->t_initiator_alias, 323 sizeof(conf->isc_initiator_alias)); 324 if (targ->t_name != NULL) 325 strlcpy(conf->isc_target, targ->t_name, 326 sizeof(conf->isc_target)); 327 if (targ->t_address != NULL) 328 strlcpy(conf->isc_target_addr, targ->t_address, 329 sizeof(conf->isc_target_addr)); 330 if (targ->t_user != NULL) 331 strlcpy(conf->isc_user, targ->t_user, 332 sizeof(conf->isc_user)); 333 if (targ->t_secret != NULL) 334 strlcpy(conf->isc_secret, targ->t_secret, 335 sizeof(conf->isc_secret)); 336 if (targ->t_mutual_user != NULL) 337 strlcpy(conf->isc_mutual_user, targ->t_mutual_user, 338 sizeof(conf->isc_mutual_user)); 339 if (targ->t_mutual_secret != NULL) 340 strlcpy(conf->isc_mutual_secret, targ->t_mutual_secret, 341 sizeof(conf->isc_mutual_secret)); 342 if (targ->t_session_type == SESSION_TYPE_DISCOVERY) 343 conf->isc_discovery = 1; 344 if (targ->t_enable != ENABLE_OFF) 345 conf->isc_enable = 1; 346 if (targ->t_protocol == PROTOCOL_ISER) 347 conf->isc_iser = 1; 348 if (targ->t_offload != NULL) 349 strlcpy(conf->isc_offload, targ->t_offload, 350 sizeof(conf->isc_offload)); 351 if (targ->t_header_digest == DIGEST_CRC32C) 352 conf->isc_header_digest = ISCSI_DIGEST_CRC32C; 353 else 354 conf->isc_header_digest = ISCSI_DIGEST_NONE; 355 if (targ->t_data_digest == DIGEST_CRC32C) 356 conf->isc_data_digest = ISCSI_DIGEST_CRC32C; 357 else 358 conf->isc_data_digest = ISCSI_DIGEST_NONE; 359 } 360 361 static int 362 kernel_add(int iscsi_fd, const struct target *targ) 363 { 364 struct iscsi_session_add isa; 365 int error; 366 367 memset(&isa, 0, sizeof(isa)); 368 conf_from_target(&isa.isa_conf, targ); 369 error = ioctl(iscsi_fd, ISCSISADD, &isa); 370 if (error != 0) 371 xo_warn("ISCSISADD"); 372 return (error); 373 } 374 375 static int 376 kernel_modify(int iscsi_fd, unsigned int session_id, const struct target *targ) 377 { 378 struct iscsi_session_modify ism; 379 int error; 380 381 memset(&ism, 0, sizeof(ism)); 382 ism.ism_session_id = session_id; 383 conf_from_target(&ism.ism_conf, targ); 384 error = ioctl(iscsi_fd, ISCSISMODIFY, &ism); 385 if (error != 0) 386 xo_warn("ISCSISMODIFY"); 387 return (error); 388 } 389 390 static void 391 kernel_modify_some(int iscsi_fd, unsigned int session_id, const char *target, 392 const char *target_addr, const char *user, const char *secret, int enable) 393 { 394 struct iscsi_session_state *states = NULL; 395 struct iscsi_session_state *state; 396 struct iscsi_session_conf *conf; 397 struct iscsi_session_list isl; 398 struct iscsi_session_modify ism; 399 unsigned int i, nentries = 1; 400 int error; 401 402 for (;;) { 403 states = realloc(states, 404 nentries * sizeof(struct iscsi_session_state)); 405 if (states == NULL) 406 xo_err(1, "realloc"); 407 408 memset(&isl, 0, sizeof(isl)); 409 isl.isl_nentries = nentries; 410 isl.isl_pstates = states; 411 412 error = ioctl(iscsi_fd, ISCSISLIST, &isl); 413 if (error != 0 && errno == EMSGSIZE) { 414 nentries *= 4; 415 continue; 416 } 417 break; 418 } 419 if (error != 0) 420 xo_errx(1, "ISCSISLIST"); 421 422 for (i = 0; i < isl.isl_nentries; i++) { 423 state = &states[i]; 424 425 if (state->iss_id == session_id) 426 break; 427 } 428 if (i == isl.isl_nentries) 429 xo_errx(1, "session-id %u not found", session_id); 430 431 conf = &state->iss_conf; 432 433 if (target != NULL) 434 strlcpy(conf->isc_target, target, sizeof(conf->isc_target)); 435 if (target_addr != NULL) 436 strlcpy(conf->isc_target_addr, target_addr, 437 sizeof(conf->isc_target_addr)); 438 if (user != NULL) 439 strlcpy(conf->isc_user, user, sizeof(conf->isc_user)); 440 if (secret != NULL) 441 strlcpy(conf->isc_secret, secret, sizeof(conf->isc_secret)); 442 if (enable == ENABLE_ON) 443 conf->isc_enable = 1; 444 else if (enable == ENABLE_OFF) 445 conf->isc_enable = 0; 446 447 memset(&ism, 0, sizeof(ism)); 448 ism.ism_session_id = session_id; 449 memcpy(&ism.ism_conf, conf, sizeof(ism.ism_conf)); 450 error = ioctl(iscsi_fd, ISCSISMODIFY, &ism); 451 if (error != 0) 452 xo_warn("ISCSISMODIFY"); 453 } 454 455 static int 456 kernel_remove(int iscsi_fd, const struct target *targ) 457 { 458 struct iscsi_session_remove isr; 459 int error; 460 461 memset(&isr, 0, sizeof(isr)); 462 conf_from_target(&isr.isr_conf, targ); 463 error = ioctl(iscsi_fd, ISCSISREMOVE, &isr); 464 if (error != 0) 465 xo_warn("ISCSISREMOVE"); 466 return (error); 467 } 468 469 /* 470 * XXX: Add filtering. 471 */ 472 static int 473 kernel_list(int iscsi_fd, const struct target *targ __unused, 474 int verbose) 475 { 476 struct iscsi_session_state *states = NULL; 477 const struct iscsi_session_state *state; 478 const struct iscsi_session_conf *conf; 479 struct iscsi_session_list isl; 480 unsigned int i, nentries = 1; 481 int error; 482 483 for (;;) { 484 states = realloc(states, 485 nentries * sizeof(struct iscsi_session_state)); 486 if (states == NULL) 487 xo_err(1, "realloc"); 488 489 memset(&isl, 0, sizeof(isl)); 490 isl.isl_nentries = nentries; 491 isl.isl_pstates = states; 492 493 error = ioctl(iscsi_fd, ISCSISLIST, &isl); 494 if (error != 0 && errno == EMSGSIZE) { 495 nentries *= 4; 496 continue; 497 } 498 break; 499 } 500 if (error != 0) { 501 xo_warn("ISCSISLIST"); 502 return (error); 503 } 504 505 if (verbose != 0) { 506 xo_open_list("session"); 507 for (i = 0; i < isl.isl_nentries; i++) { 508 state = &states[i]; 509 conf = &state->iss_conf; 510 511 xo_open_instance("session"); 512 513 /* 514 * Display-only modifier as this information 515 * is also present within the 'session' container 516 */ 517 xo_emit("{L:/%-18s}{V:sessionId/%u}\n", 518 "Session ID:", state->iss_id); 519 520 xo_open_container("initiator"); 521 xo_emit("{L:/%-18s}{V:name/%s}\n", 522 "Initiator name:", conf->isc_initiator); 523 xo_emit("{L:/%-18s}{V:portal/%s}\n", 524 "Initiator portal:", conf->isc_initiator_addr); 525 xo_emit("{L:/%-18s}{V:alias/%s}\n", 526 "Initiator alias:", conf->isc_initiator_alias); 527 xo_close_container("initiator"); 528 529 xo_open_container("target"); 530 xo_emit("{L:/%-18s}{V:name/%s}\n", 531 "Target name:", conf->isc_target); 532 xo_emit("{L:/%-18s}{V:portal/%s}\n", 533 "Target portal:", conf->isc_target_addr); 534 xo_emit("{L:/%-18s}{V:alias/%s}\n", 535 "Target alias:", state->iss_target_alias); 536 xo_close_container("target"); 537 538 xo_open_container("auth"); 539 xo_emit("{L:/%-18s}{V:user/%s}\n", 540 "User:", conf->isc_user); 541 xo_emit("{L:/%-18s}{V:secret/%s}\n", 542 "Secret:", conf->isc_secret); 543 xo_emit("{L:/%-18s}{V:mutualUser/%s}\n", 544 "Mutual user:", conf->isc_mutual_user); 545 xo_emit("{L:/%-18s}{V:mutualSecret/%s}\n", 546 "Mutual secret:", conf->isc_mutual_secret); 547 xo_close_container("auth"); 548 549 xo_emit("{L:/%-18s}{V:type/%s}\n", 550 "Session type:", 551 conf->isc_discovery ? "Discovery" : "Normal"); 552 xo_emit("{L:/%-18s}{V:enable/%s}\n", 553 "Enable:", 554 conf->isc_enable ? "Yes" : "No"); 555 xo_emit("{L:/%-18s}{V:state/%s}\n", 556 "Session state:", 557 state->iss_connected ? "Connected" : "Disconnected"); 558 xo_emit("{L:/%-18s}{V:failureReason/%s}\n", 559 "Failure reason:", state->iss_reason); 560 xo_emit("{L:/%-18s}{V:headerDigest/%s}\n", 561 "Header digest:", 562 state->iss_header_digest == ISCSI_DIGEST_CRC32C ? 563 "CRC32C" : "None"); 564 xo_emit("{L:/%-18s}{V:dataDigest/%s}\n", 565 "Data digest:", 566 state->iss_data_digest == ISCSI_DIGEST_CRC32C ? 567 "CRC32C" : "None"); 568 xo_emit("{L:/%-18s}{V:dataSegmentLen/%d}\n", 569 "DataSegmentLen:", state->iss_max_data_segment_length); 570 xo_emit("{L:/%-18s}{V:maxBurstLen/%d}\n", 571 "MaxBurstLen:", state->iss_max_burst_length); 572 xo_emit("{L:/%-18s}{V:firstBurstLen/%d}\n", 573 "FirstBurstLen:", state->iss_first_burst_length); 574 xo_emit("{L:/%-18s}{V:immediateData/%s}\n", 575 "ImmediateData:", state->iss_immediate_data ? "Yes" : "No"); 576 xo_emit("{L:/%-18s}{V:iSER/%s}\n", 577 "iSER (RDMA):", conf->isc_iser ? "Yes" : "No"); 578 xo_emit("{L:/%-18s}{V:offloadDriver/%s}\n", 579 "Offload driver:", state->iss_offload); 580 xo_emit("{L:/%-18s}", 581 "Device nodes:"); 582 print_periphs(state->iss_id); 583 xo_emit("\n\n"); 584 xo_close_instance("session"); 585 } 586 xo_close_list("session"); 587 } else { 588 xo_emit("{T:/%-36s} {T:/%-16s} {T:/%s}\n", 589 "Target name", "Target portal", "State"); 590 591 if (isl.isl_nentries != 0) 592 xo_open_list("session"); 593 for (i = 0; i < isl.isl_nentries; i++) { 594 595 state = &states[i]; 596 conf = &state->iss_conf; 597 598 xo_open_instance("session"); 599 xo_emit("{V:name/%-36s/%s} {V:portal/%-16s/%s} ", 600 conf->isc_target, conf->isc_target_addr); 601 602 if (state->iss_reason[0] != '\0') { 603 xo_emit("{V:state/%s}\n", state->iss_reason); 604 } else { 605 if (conf->isc_discovery) { 606 xo_emit("{V:state}\n", "Discovery"); 607 } else if (conf->isc_enable == 0) { 608 xo_emit("{V:state}\n", "Disabled"); 609 } else if (state->iss_connected) { 610 xo_emit("{V:state}: ", "Connected"); 611 print_periphs(state->iss_id); 612 xo_emit("\n"); 613 } else { 614 xo_emit("{V:state}\n", "Disconnected"); 615 } 616 } 617 xo_close_instance("session"); 618 } 619 if (isl.isl_nentries != 0) 620 xo_close_list("session"); 621 } 622 623 return (0); 624 } 625 626 static int 627 kernel_wait(int iscsi_fd, int timeout) 628 { 629 struct iscsi_session_state *states = NULL; 630 const struct iscsi_session_state *state; 631 struct iscsi_session_list isl; 632 unsigned int i, nentries = 1; 633 bool all_connected; 634 int error; 635 636 for (;;) { 637 for (;;) { 638 states = realloc(states, 639 nentries * sizeof(struct iscsi_session_state)); 640 if (states == NULL) 641 xo_err(1, "realloc"); 642 643 memset(&isl, 0, sizeof(isl)); 644 isl.isl_nentries = nentries; 645 isl.isl_pstates = states; 646 647 error = ioctl(iscsi_fd, ISCSISLIST, &isl); 648 if (error != 0 && errno == EMSGSIZE) { 649 nentries *= 4; 650 continue; 651 } 652 break; 653 } 654 if (error != 0) { 655 xo_warn("ISCSISLIST"); 656 return (error); 657 } 658 659 all_connected = true; 660 for (i = 0; i < isl.isl_nentries; i++) { 661 state = &states[i]; 662 663 if (!state->iss_connected) { 664 all_connected = false; 665 break; 666 } 667 } 668 669 if (all_connected) 670 return (0); 671 672 sleep(1); 673 674 if (timeout > 0) { 675 timeout--; 676 if (timeout == 0) 677 return (1); 678 } 679 } 680 } 681 682 static void 683 usage(void) 684 { 685 686 fprintf(stderr, "usage: iscsictl -A -p portal -t target " 687 "[-u user -s secret] [-w timeout] [-e on | off]\n"); 688 fprintf(stderr, " iscsictl -A -d discovery-host " 689 "[-u user -s secret] [-e on | off]\n"); 690 fprintf(stderr, " iscsictl -A -a [-c path]\n"); 691 fprintf(stderr, " iscsictl -A -n nickname [-c path]\n"); 692 fprintf(stderr, " iscsictl -M -i session-id [-p portal] " 693 "[-t target] [-u user] [-s secret] [-e on | off]\n"); 694 fprintf(stderr, " iscsictl -M -i session-id -n nickname " 695 "[-c path]\n"); 696 fprintf(stderr, " iscsictl -R [-p portal] [-t target]\n"); 697 fprintf(stderr, " iscsictl -R -a\n"); 698 fprintf(stderr, " iscsictl -R -n nickname [-c path]\n"); 699 fprintf(stderr, " iscsictl -L [-v] [-w timeout]\n"); 700 exit(1); 701 } 702 703 char * 704 checked_strdup(const char *s) 705 { 706 char *c; 707 708 c = strdup(s); 709 if (c == NULL) 710 xo_err(1, "strdup"); 711 return (c); 712 } 713 714 int 715 main(int argc, char **argv) 716 { 717 int Aflag = 0, Mflag = 0, Rflag = 0, Lflag = 0, aflag = 0, 718 rflag = 0, vflag = 0; 719 const char *conf_path = DEFAULT_CONFIG_PATH; 720 char *nickname = NULL, *discovery_host = NULL, *portal = NULL, 721 *target = NULL, *user = NULL, *secret = NULL; 722 int timeout = -1, enable = ENABLE_UNSPECIFIED; 723 long long session_id = -1; 724 char *end; 725 int ch, error, iscsi_fd, retval, saved_errno; 726 int failed = 0; 727 struct conf *conf; 728 struct target *targ; 729 730 argc = xo_parse_args(argc, argv); 731 xo_open_container("iscsictl"); 732 733 while ((ch = getopt(argc, argv, "AMRLac:d:e:i:n:p:rt:u:s:vw:")) != -1) { 734 switch (ch) { 735 case 'A': 736 Aflag = 1; 737 break; 738 case 'M': 739 Mflag = 1; 740 break; 741 case 'R': 742 Rflag = 1; 743 break; 744 case 'L': 745 Lflag = 1; 746 break; 747 case 'a': 748 aflag = 1; 749 break; 750 case 'c': 751 conf_path = optarg; 752 break; 753 case 'd': 754 discovery_host = optarg; 755 break; 756 case 'e': 757 enable = parse_enable(optarg); 758 if (enable == ENABLE_UNSPECIFIED) { 759 xo_errx(1, "invalid argument to -e, " 760 "must be either \"on\" or \"off\""); 761 } 762 break; 763 case 'i': 764 session_id = strtol(optarg, &end, 10); 765 if ((size_t)(end - optarg) != strlen(optarg)) 766 xo_errx(1, "trailing characters after session-id"); 767 if (session_id < 0) 768 xo_errx(1, "session-id cannot be negative"); 769 if (session_id > UINT_MAX) 770 xo_errx(1, "session-id cannot be greater than %u", 771 UINT_MAX); 772 break; 773 case 'n': 774 nickname = optarg; 775 break; 776 case 'p': 777 portal = optarg; 778 break; 779 case 'r': 780 rflag = 1; 781 break; 782 case 't': 783 target = optarg; 784 break; 785 case 'u': 786 user = optarg; 787 break; 788 case 's': 789 secret = optarg; 790 break; 791 case 'v': 792 vflag = 1; 793 break; 794 case 'w': 795 timeout = strtol(optarg, &end, 10); 796 if ((size_t)(end - optarg) != strlen(optarg)) 797 xo_errx(1, "trailing characters after timeout"); 798 if (timeout < 0) 799 xo_errx(1, "timeout cannot be negative"); 800 break; 801 case '?': 802 default: 803 usage(); 804 } 805 } 806 argc -= optind; 807 if (argc != 0) 808 usage(); 809 810 if (Aflag + Mflag + Rflag + Lflag == 0) 811 Lflag = 1; 812 if (Aflag + Mflag + Rflag + Lflag > 1) 813 xo_errx(1, "at most one of -A, -M, -R, or -L may be specified"); 814 815 /* 816 * Note that we ignore unnecessary/inapplicable "-c" flag; so that 817 * people can do something like "alias ISCSICTL="iscsictl -c path" 818 * in shell scripts. 819 */ 820 if (Aflag != 0) { 821 if (aflag != 0) { 822 if (enable != ENABLE_UNSPECIFIED) 823 xo_errx(1, "-a and -e and mutually exclusive"); 824 if (portal != NULL) 825 xo_errx(1, "-a and -p and mutually exclusive"); 826 if (target != NULL) 827 xo_errx(1, "-a and -t and mutually exclusive"); 828 if (user != NULL) 829 xo_errx(1, "-a and -u and mutually exclusive"); 830 if (secret != NULL) 831 xo_errx(1, "-a and -s and mutually exclusive"); 832 if (nickname != NULL) 833 xo_errx(1, "-a and -n and mutually exclusive"); 834 if (discovery_host != NULL) 835 xo_errx(1, "-a and -d and mutually exclusive"); 836 if (rflag != 0) 837 xo_errx(1, "-a and -r and mutually exclusive"); 838 } else if (nickname != NULL) { 839 if (enable != ENABLE_UNSPECIFIED) 840 xo_errx(1, "-n and -e and mutually exclusive"); 841 if (portal != NULL) 842 xo_errx(1, "-n and -p and mutually exclusive"); 843 if (target != NULL) 844 xo_errx(1, "-n and -t and mutually exclusive"); 845 if (user != NULL) 846 xo_errx(1, "-n and -u and mutually exclusive"); 847 if (secret != NULL) 848 xo_errx(1, "-n and -s and mutually exclusive"); 849 if (discovery_host != NULL) 850 xo_errx(1, "-n and -d and mutually exclusive"); 851 if (rflag != 0) 852 xo_errx(1, "-n and -r and mutually exclusive"); 853 } else if (discovery_host != NULL) { 854 if (portal != NULL) 855 xo_errx(1, "-d and -p and mutually exclusive"); 856 if (target != NULL) 857 xo_errx(1, "-d and -t and mutually exclusive"); 858 } else { 859 if (target == NULL && portal == NULL) 860 xo_errx(1, "must specify -a, -n or -t/-p"); 861 862 if (target != NULL && portal == NULL) 863 xo_errx(1, "-t must always be used with -p"); 864 if (portal != NULL && target == NULL) 865 xo_errx(1, "-p must always be used with -t"); 866 } 867 868 if (user != NULL && secret == NULL) 869 xo_errx(1, "-u must always be used with -s"); 870 if (secret != NULL && user == NULL) 871 xo_errx(1, "-s must always be used with -u"); 872 873 if (session_id != -1) 874 xo_errx(1, "-i cannot be used with -A"); 875 if (vflag != 0) 876 xo_errx(1, "-v cannot be used with -A"); 877 878 } else if (Mflag != 0) { 879 if (session_id == -1) 880 xo_errx(1, "-M requires -i"); 881 882 if (nickname != NULL) { 883 if (enable != ENABLE_UNSPECIFIED) 884 xo_errx(1, "-n and -e and mutually exclusive"); 885 if (portal != NULL) 886 xo_errx(1, "-n and -p and mutually exclusive"); 887 if (target != NULL) 888 xo_errx(1, "-n and -t and mutually exclusive"); 889 if (user != NULL) 890 xo_errx(1, "-n and -u and mutually exclusive"); 891 if (secret != NULL) 892 xo_errx(1, "-n and -s and mutually exclusive"); 893 } 894 895 if (aflag != 0) 896 xo_errx(1, "-a cannot be used with -M"); 897 if (discovery_host != NULL) 898 xo_errx(1, "-d cannot be used with -M"); 899 if (rflag != 0) 900 xo_errx(1, "-r cannot be used with -M"); 901 if (vflag != 0) 902 xo_errx(1, "-v cannot be used with -M"); 903 if (timeout != -1) 904 xo_errx(1, "-w cannot be used with -M"); 905 906 } else if (Rflag != 0) { 907 if (aflag != 0) { 908 if (portal != NULL) 909 xo_errx(1, "-a and -p and mutually exclusive"); 910 if (target != NULL) 911 xo_errx(1, "-a and -t and mutually exclusive"); 912 if (nickname != NULL) 913 xo_errx(1, "-a and -n and mutually exclusive"); 914 } else if (nickname != NULL) { 915 if (portal != NULL) 916 xo_errx(1, "-n and -p and mutually exclusive"); 917 if (target != NULL) 918 xo_errx(1, "-n and -t and mutually exclusive"); 919 } else if (target == NULL && portal == NULL) { 920 xo_errx(1, "must specify either -a, -n, -t, or -p"); 921 } 922 923 if (discovery_host != NULL) 924 xo_errx(1, "-d cannot be used with -R"); 925 if (enable != ENABLE_UNSPECIFIED) 926 xo_errx(1, "-e cannot be used with -R"); 927 if (session_id != -1) 928 xo_errx(1, "-i cannot be used with -R"); 929 if (rflag != 0) 930 xo_errx(1, "-r cannot be used with -R"); 931 if (user != NULL) 932 xo_errx(1, "-u cannot be used with -R"); 933 if (secret != NULL) 934 xo_errx(1, "-s cannot be used with -R"); 935 if (vflag != 0) 936 xo_errx(1, "-v cannot be used with -R"); 937 if (timeout != -1) 938 xo_errx(1, "-w cannot be used with -R"); 939 940 } else { 941 assert(Lflag != 0); 942 943 if (discovery_host != NULL) 944 xo_errx(1, "-d cannot be used with -L"); 945 if (session_id != -1) 946 xo_errx(1, "-i cannot be used with -L"); 947 if (nickname != NULL) 948 xo_errx(1, "-n cannot be used with -L"); 949 if (portal != NULL) 950 xo_errx(1, "-p cannot be used with -L"); 951 if (rflag != 0) 952 xo_errx(1, "-r cannot be used with -L"); 953 if (target != NULL) 954 xo_errx(1, "-t cannot be used with -L"); 955 if (user != NULL) 956 xo_errx(1, "-u cannot be used with -L"); 957 if (secret != NULL) 958 xo_errx(1, "-s cannot be used with -L"); 959 } 960 961 iscsi_fd = open(ISCSI_PATH, O_RDWR); 962 if (iscsi_fd < 0 && errno == ENOENT) { 963 saved_errno = errno; 964 retval = kldload("iscsi"); 965 if (retval != -1) 966 iscsi_fd = open(ISCSI_PATH, O_RDWR); 967 else 968 errno = saved_errno; 969 } 970 if (iscsi_fd < 0) 971 xo_err(1, "failed to open %s", ISCSI_PATH); 972 973 if (Aflag != 0 && aflag != 0) { 974 conf = conf_new_from_file(conf_path); 975 976 TAILQ_FOREACH(targ, &conf->conf_targets, t_next) 977 failed += kernel_add(iscsi_fd, targ); 978 } else if (nickname != NULL) { 979 conf = conf_new_from_file(conf_path); 980 targ = target_find(conf, nickname); 981 if (targ == NULL) 982 xo_errx(1, "target %s not found in %s", 983 nickname, conf_path); 984 985 if (Aflag != 0) 986 failed += kernel_add(iscsi_fd, targ); 987 else if (Mflag != 0) 988 failed += kernel_modify(iscsi_fd, session_id, targ); 989 else if (Rflag != 0) 990 failed += kernel_remove(iscsi_fd, targ); 991 else 992 failed += kernel_list(iscsi_fd, targ, vflag); 993 } else if (Mflag != 0) { 994 kernel_modify_some(iscsi_fd, session_id, target, portal, 995 user, secret, enable); 996 } else { 997 if (Aflag != 0 && target != NULL) { 998 if (valid_iscsi_name(target) == false) 999 xo_errx(1, "invalid target name \"%s\"", target); 1000 } 1001 conf = conf_new(); 1002 targ = target_new(conf); 1003 targ->t_initiator_name = default_initiator_name(); 1004 targ->t_header_digest = DIGEST_NONE; 1005 targ->t_data_digest = DIGEST_NONE; 1006 targ->t_name = target; 1007 if (discovery_host != NULL) { 1008 targ->t_session_type = SESSION_TYPE_DISCOVERY; 1009 targ->t_address = discovery_host; 1010 } else { 1011 targ->t_session_type = SESSION_TYPE_NORMAL; 1012 targ->t_address = portal; 1013 } 1014 targ->t_enable = enable; 1015 if (rflag != 0) 1016 targ->t_protocol = PROTOCOL_ISER; 1017 targ->t_user = user; 1018 targ->t_secret = secret; 1019 1020 if (Aflag != 0) 1021 failed += kernel_add(iscsi_fd, targ); 1022 else if (Rflag != 0) 1023 failed += kernel_remove(iscsi_fd, targ); 1024 else 1025 failed += kernel_list(iscsi_fd, targ, vflag); 1026 } 1027 1028 if (timeout != -1) 1029 failed += kernel_wait(iscsi_fd, timeout); 1030 1031 error = close(iscsi_fd); 1032 if (error != 0) 1033 xo_err(1, "close"); 1034 1035 xo_close_container("iscsictl"); 1036 xo_finish(); 1037 1038 if (failed != 0) 1039 return (1); 1040 1041 return (0); 1042 } 1043