1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2004-2019 Pawel Jakub Dawidek <pawel@dawidek.net> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 #include <sys/param.h> 33 #include <sys/mman.h> 34 #include <sys/sysctl.h> 35 #include <sys/resource.h> 36 #include <opencrypto/cryptodev.h> 37 38 #include <assert.h> 39 #include <err.h> 40 #include <errno.h> 41 #include <fcntl.h> 42 #include <libgeom.h> 43 #include <paths.h> 44 #include <readpassphrase.h> 45 #include <stdbool.h> 46 #include <stdint.h> 47 #include <stdio.h> 48 #include <stdlib.h> 49 #include <string.h> 50 #include <strings.h> 51 #include <unistd.h> 52 53 #include <geom/eli/g_eli.h> 54 #include <geom/eli/pkcs5v2.h> 55 56 #include "core/geom.h" 57 #include "misc/subr.h" 58 59 60 uint32_t lib_version = G_LIB_VERSION; 61 uint32_t version = G_ELI_VERSION; 62 63 #define GELI_BACKUP_DIR "/var/backups/" 64 #define GELI_ENC_ALGO "aes" 65 #define BUFSIZE 1024 66 67 /* 68 * Passphrase cached when attaching multiple providers, in order to be more 69 * user-friendly if they are using the same passphrase. 70 */ 71 static char cached_passphrase[BUFSIZE] = ""; 72 73 static void eli_main(struct gctl_req *req, unsigned flags); 74 static void eli_init(struct gctl_req *req); 75 static void eli_attach(struct gctl_req *req); 76 static void eli_configure(struct gctl_req *req); 77 static void eli_setkey(struct gctl_req *req); 78 static void eli_delkey(struct gctl_req *req); 79 static void eli_resume(struct gctl_req *req); 80 static void eli_kill(struct gctl_req *req); 81 static void eli_backup(struct gctl_req *req); 82 static void eli_restore(struct gctl_req *req); 83 static void eli_resize(struct gctl_req *req); 84 static void eli_version(struct gctl_req *req); 85 static void eli_clear(struct gctl_req *req); 86 static void eli_dump(struct gctl_req *req); 87 88 static int eli_backup_create(struct gctl_req *req, const char *prov, 89 const char *file); 90 91 /* 92 * Available commands: 93 * 94 * init [-bdgPRTv] [-a aalgo] [-B backupfile] [-e ealgo] [-i iterations] [-l keylen] [-J newpassfile] [-K newkeyfile] [-s sectorsize] [-V version] prov ... 95 * label - alias for 'init' 96 * attach [-Cdprv] [-n keyno] [-j passfile] [-k keyfile] prov ... 97 * detach [-fl] prov ... 98 * stop - alias for 'detach' 99 * onetime [-dRT] [-a aalgo] [-e ealgo] [-l keylen] prov 100 * configure [-bBgGrRtT] prov ... 101 * setkey [-pPv] [-n keyno] [-j passfile] [-J newpassfile] [-k keyfile] [-K newkeyfile] prov 102 * delkey [-afv] [-n keyno] prov 103 * suspend [-v] -a | prov ... 104 * resume [-pv] [-j passfile] [-k keyfile] prov 105 * kill [-av] [prov ...] 106 * backup [-v] prov file 107 * restore [-fv] file prov 108 * resize [-v] -s oldsize prov 109 * version [prov ...] 110 * clear [-v] prov ... 111 * dump [-v] prov ... 112 */ 113 struct g_command class_commands[] = { 114 { "init", G_FLAG_VERBOSE, eli_main, 115 { 116 { 'a', "aalgo", "", G_TYPE_STRING }, 117 { 'b', "boot", NULL, G_TYPE_BOOL }, 118 { 'B', "backupfile", "", G_TYPE_STRING }, 119 { 'd', "displaypass", NULL, G_TYPE_BOOL }, 120 { 'e', "ealgo", "", G_TYPE_STRING }, 121 { 'g', "geliboot", NULL, G_TYPE_BOOL }, 122 { 'i', "iterations", "-1", G_TYPE_NUMBER }, 123 { 'J', "newpassfile", G_VAL_OPTIONAL, G_TYPE_STRING | G_TYPE_MULTI }, 124 { 'K', "newkeyfile", G_VAL_OPTIONAL, G_TYPE_STRING | G_TYPE_MULTI }, 125 { 'l', "keylen", "0", G_TYPE_NUMBER }, 126 { 'P', "nonewpassphrase", NULL, G_TYPE_BOOL }, 127 { 'R', "noautoresize", NULL, G_TYPE_BOOL }, 128 { 's', "sectorsize", "0", G_TYPE_NUMBER }, 129 { 'T', "notrim", NULL, G_TYPE_BOOL }, 130 { 'V', "mdversion", "-1", G_TYPE_NUMBER }, 131 G_OPT_SENTINEL 132 }, 133 "[-bdgPRTv] [-a aalgo] [-B backupfile] [-e ealgo] [-i iterations] [-l keylen] [-J newpassfile] [-K newkeyfile] [-s sectorsize] [-V version] prov ..." 134 }, 135 { "label", G_FLAG_VERBOSE, eli_main, 136 { 137 { 'a', "aalgo", "", G_TYPE_STRING }, 138 { 'b', "boot", NULL, G_TYPE_BOOL }, 139 { 'B', "backupfile", "", G_TYPE_STRING }, 140 { 'd', "displaypass", NULL, G_TYPE_BOOL }, 141 { 'e', "ealgo", "", G_TYPE_STRING }, 142 { 'g', "geliboot", NULL, G_TYPE_BOOL }, 143 { 'i', "iterations", "-1", G_TYPE_NUMBER }, 144 { 'J', "newpassfile", G_VAL_OPTIONAL, G_TYPE_STRING | G_TYPE_MULTI }, 145 { 'K', "newkeyfile", G_VAL_OPTIONAL, G_TYPE_STRING | G_TYPE_MULTI }, 146 { 'l', "keylen", "0", G_TYPE_NUMBER }, 147 { 'P', "nonewpassphrase", NULL, G_TYPE_BOOL }, 148 { 'R', "noautoresize", NULL, G_TYPE_BOOL }, 149 { 's', "sectorsize", "0", G_TYPE_NUMBER }, 150 { 'T', "notrim", NULL, G_TYPE_BOOL }, 151 { 'V', "mdversion", "-1", G_TYPE_NUMBER }, 152 G_OPT_SENTINEL 153 }, 154 "- an alias for 'init'" 155 }, 156 { "attach", G_FLAG_VERBOSE | G_FLAG_LOADKLD, eli_main, 157 { 158 { 'C', "dryrun", NULL, G_TYPE_BOOL }, 159 { 'd', "detach", NULL, G_TYPE_BOOL }, 160 { 'j', "passfile", G_VAL_OPTIONAL, G_TYPE_STRING | G_TYPE_MULTI }, 161 { 'k', "keyfile", G_VAL_OPTIONAL, G_TYPE_STRING | G_TYPE_MULTI }, 162 { 'n', "keyno", "-1", G_TYPE_NUMBER }, 163 { 'p', "nopassphrase", NULL, G_TYPE_BOOL }, 164 { 'r', "readonly", NULL, G_TYPE_BOOL }, 165 G_OPT_SENTINEL 166 }, 167 "[-Cdprv] [-n keyno] [-j passfile] [-k keyfile] prov ..." 168 }, 169 { "detach", 0, NULL, 170 { 171 { 'f', "force", NULL, G_TYPE_BOOL }, 172 { 'l', "last", NULL, G_TYPE_BOOL }, 173 G_OPT_SENTINEL 174 }, 175 "[-fl] prov ..." 176 }, 177 { "stop", 0, NULL, 178 { 179 { 'f', "force", NULL, G_TYPE_BOOL }, 180 { 'l', "last", NULL, G_TYPE_BOOL }, 181 G_OPT_SENTINEL 182 }, 183 "- an alias for 'detach'" 184 }, 185 { "onetime", G_FLAG_VERBOSE | G_FLAG_LOADKLD, NULL, 186 { 187 { 'a', "aalgo", "", G_TYPE_STRING }, 188 { 'd', "detach", NULL, G_TYPE_BOOL }, 189 { 'e', "ealgo", GELI_ENC_ALGO, G_TYPE_STRING }, 190 { 'l', "keylen", "0", G_TYPE_NUMBER }, 191 { 'R', "noautoresize", NULL, G_TYPE_BOOL }, 192 { 's', "sectorsize", "0", G_TYPE_NUMBER }, 193 { 'T', "notrim", NULL, G_TYPE_BOOL }, 194 G_OPT_SENTINEL 195 }, 196 "[-dRT] [-a aalgo] [-e ealgo] [-l keylen] [-s sectorsize] prov" 197 }, 198 { "configure", G_FLAG_VERBOSE, eli_main, 199 { 200 { 'b', "boot", NULL, G_TYPE_BOOL }, 201 { 'B', "noboot", NULL, G_TYPE_BOOL }, 202 { 'd', "displaypass", NULL, G_TYPE_BOOL }, 203 { 'D', "nodisplaypass", NULL, G_TYPE_BOOL }, 204 { 'g', "geliboot", NULL, G_TYPE_BOOL }, 205 { 'G', "nogeliboot", NULL, G_TYPE_BOOL }, 206 { 'r', "autoresize", NULL, G_TYPE_BOOL }, 207 { 'R', "noautoresize", NULL, G_TYPE_BOOL }, 208 { 't', "trim", NULL, G_TYPE_BOOL }, 209 { 'T', "notrim", NULL, G_TYPE_BOOL }, 210 G_OPT_SENTINEL 211 }, 212 "[-bBdDgGrRtT] prov ..." 213 }, 214 { "setkey", G_FLAG_VERBOSE, eli_main, 215 { 216 { 'i', "iterations", "-1", G_TYPE_NUMBER }, 217 { 'j', "passfile", G_VAL_OPTIONAL, G_TYPE_STRING | G_TYPE_MULTI }, 218 { 'J', "newpassfile", G_VAL_OPTIONAL, G_TYPE_STRING | G_TYPE_MULTI }, 219 { 'k', "keyfile", G_VAL_OPTIONAL, G_TYPE_STRING | G_TYPE_MULTI }, 220 { 'K', "newkeyfile", G_VAL_OPTIONAL, G_TYPE_STRING | G_TYPE_MULTI }, 221 { 'n', "keyno", "-1", G_TYPE_NUMBER }, 222 { 'p', "nopassphrase", NULL, G_TYPE_BOOL }, 223 { 'P', "nonewpassphrase", NULL, G_TYPE_BOOL }, 224 G_OPT_SENTINEL 225 }, 226 "[-pPv] [-n keyno] [-i iterations] [-j passfile] [-J newpassfile] [-k keyfile] [-K newkeyfile] prov" 227 }, 228 { "delkey", G_FLAG_VERBOSE, eli_main, 229 { 230 { 'a', "all", NULL, G_TYPE_BOOL }, 231 { 'f', "force", NULL, G_TYPE_BOOL }, 232 { 'n', "keyno", "-1", G_TYPE_NUMBER }, 233 G_OPT_SENTINEL 234 }, 235 "[-afv] [-n keyno] prov" 236 }, 237 { "suspend", G_FLAG_VERBOSE, NULL, 238 { 239 { 'a', "all", NULL, G_TYPE_BOOL }, 240 G_OPT_SENTINEL 241 }, 242 "[-v] -a | prov ..." 243 }, 244 { "resume", G_FLAG_VERBOSE, eli_main, 245 { 246 { 'j', "passfile", G_VAL_OPTIONAL, G_TYPE_STRING | G_TYPE_MULTI }, 247 { 'k', "keyfile", G_VAL_OPTIONAL, G_TYPE_STRING | G_TYPE_MULTI }, 248 { 'p', "nopassphrase", NULL, G_TYPE_BOOL }, 249 G_OPT_SENTINEL 250 }, 251 "[-pv] [-j passfile] [-k keyfile] prov" 252 }, 253 { "kill", G_FLAG_VERBOSE, eli_main, 254 { 255 { 'a', "all", NULL, G_TYPE_BOOL }, 256 G_OPT_SENTINEL 257 }, 258 "[-av] [prov ...]" 259 }, 260 { "backup", G_FLAG_VERBOSE, eli_main, G_NULL_OPTS, 261 "[-v] prov file" 262 }, 263 { "restore", G_FLAG_VERBOSE, eli_main, 264 { 265 { 'f', "force", NULL, G_TYPE_BOOL }, 266 G_OPT_SENTINEL 267 }, 268 "[-fv] file prov" 269 }, 270 { "resize", G_FLAG_VERBOSE, eli_main, 271 { 272 { 's', "oldsize", NULL, G_TYPE_NUMBER }, 273 G_OPT_SENTINEL 274 }, 275 "[-v] -s oldsize prov" 276 }, 277 { "version", G_FLAG_LOADKLD, eli_main, G_NULL_OPTS, 278 "[prov ...]" 279 }, 280 { "clear", G_FLAG_VERBOSE, eli_main, G_NULL_OPTS, 281 "[-v] prov ..." 282 }, 283 { "dump", G_FLAG_VERBOSE, eli_main, G_NULL_OPTS, 284 "[-v] prov ..." 285 }, 286 G_CMD_SENTINEL 287 }; 288 289 static int verbose = 0; 290 291 static int 292 eli_protect(struct gctl_req *req) 293 { 294 struct rlimit rl; 295 296 /* Disable core dumps. */ 297 rl.rlim_cur = 0; 298 rl.rlim_max = 0; 299 if (setrlimit(RLIMIT_CORE, &rl) == -1) { 300 gctl_error(req, "Cannot disable core dumps: %s.", 301 strerror(errno)); 302 return (-1); 303 } 304 /* Disable swapping. */ 305 if (mlockall(MCL_FUTURE) == -1) { 306 gctl_error(req, "Cannot lock memory: %s.", strerror(errno)); 307 return (-1); 308 } 309 return (0); 310 } 311 312 static void 313 eli_main(struct gctl_req *req, unsigned int flags) 314 { 315 const char *name; 316 317 if (eli_protect(req) == -1) 318 return; 319 320 if ((flags & G_FLAG_VERBOSE) != 0) 321 verbose = 1; 322 323 name = gctl_get_ascii(req, "verb"); 324 if (name == NULL) { 325 gctl_error(req, "No '%s' argument.", "verb"); 326 return; 327 } 328 if (strcmp(name, "init") == 0 || strcmp(name, "label") == 0) 329 eli_init(req); 330 else if (strcmp(name, "attach") == 0) 331 eli_attach(req); 332 else if (strcmp(name, "configure") == 0) 333 eli_configure(req); 334 else if (strcmp(name, "setkey") == 0) 335 eli_setkey(req); 336 else if (strcmp(name, "delkey") == 0) 337 eli_delkey(req); 338 else if (strcmp(name, "resume") == 0) 339 eli_resume(req); 340 else if (strcmp(name, "kill") == 0) 341 eli_kill(req); 342 else if (strcmp(name, "backup") == 0) 343 eli_backup(req); 344 else if (strcmp(name, "restore") == 0) 345 eli_restore(req); 346 else if (strcmp(name, "resize") == 0) 347 eli_resize(req); 348 else if (strcmp(name, "version") == 0) 349 eli_version(req); 350 else if (strcmp(name, "dump") == 0) 351 eli_dump(req); 352 else if (strcmp(name, "clear") == 0) 353 eli_clear(req); 354 else 355 gctl_error(req, "Unknown command: %s.", name); 356 } 357 358 static bool 359 eli_is_attached(const char *prov) 360 { 361 char name[MAXPATHLEN]; 362 363 /* 364 * Not the best way to do it, but the easiest. 365 * We try to open provider and check if it is a GEOM provider 366 * by asking about its sectorsize. 367 */ 368 snprintf(name, sizeof(name), "%s%s", prov, G_ELI_SUFFIX); 369 return (g_get_sectorsize(name) > 0); 370 } 371 372 static int 373 eli_genkey_files(struct gctl_req *req, bool new, const char *type, 374 struct hmac_ctx *ctxp, char *passbuf, size_t passbufsize) 375 { 376 char *p, buf[BUFSIZE], argname[16]; 377 const char *file; 378 int error, fd, i; 379 ssize_t done; 380 381 assert((strcmp(type, "keyfile") == 0 && ctxp != NULL && 382 passbuf == NULL && passbufsize == 0) || 383 (strcmp(type, "passfile") == 0 && ctxp == NULL && 384 passbuf != NULL && passbufsize > 0)); 385 assert(strcmp(type, "keyfile") == 0 || passbuf[0] == '\0'); 386 387 for (i = 0; ; i++) { 388 snprintf(argname, sizeof(argname), "%s%s%d", 389 new ? "new" : "", type, i); 390 391 /* No more {key,pass}files? */ 392 if (!gctl_has_param(req, argname)) 393 return (i); 394 395 file = gctl_get_ascii(req, "%s", argname); 396 assert(file != NULL); 397 398 if (strcmp(file, "-") == 0) 399 fd = STDIN_FILENO; 400 else { 401 fd = open(file, O_RDONLY); 402 if (fd == -1) { 403 gctl_error(req, "Cannot open %s %s: %s.", 404 type, file, strerror(errno)); 405 return (-1); 406 } 407 } 408 if (strcmp(type, "keyfile") == 0) { 409 while ((done = read(fd, buf, sizeof(buf))) > 0) 410 g_eli_crypto_hmac_update(ctxp, buf, done); 411 } else /* if (strcmp(type, "passfile") == 0) */ { 412 assert(strcmp(type, "passfile") == 0); 413 414 while ((done = read(fd, buf, sizeof(buf) - 1)) > 0) { 415 buf[done] = '\0'; 416 p = strchr(buf, '\n'); 417 if (p != NULL) { 418 *p = '\0'; 419 done = p - buf; 420 } 421 if (strlcat(passbuf, buf, passbufsize) >= 422 passbufsize) { 423 gctl_error(req, 424 "Passphrase in %s too long.", file); 425 explicit_bzero(buf, sizeof(buf)); 426 return (-1); 427 } 428 if (p != NULL) 429 break; 430 } 431 } 432 error = errno; 433 if (strcmp(file, "-") != 0) 434 close(fd); 435 explicit_bzero(buf, sizeof(buf)); 436 if (done == -1) { 437 gctl_error(req, "Cannot read %s %s: %s.", 438 type, file, strerror(error)); 439 return (-1); 440 } 441 } 442 /* NOTREACHED */ 443 } 444 445 static int 446 eli_genkey_passphrase_prompt(struct gctl_req *req, bool new, char *passbuf, 447 size_t passbufsize) 448 { 449 char *p; 450 451 for (;;) { 452 p = readpassphrase( 453 new ? "Enter new passphrase: " : "Enter passphrase: ", 454 passbuf, passbufsize, RPP_ECHO_OFF | RPP_REQUIRE_TTY); 455 if (p == NULL) { 456 explicit_bzero(passbuf, passbufsize); 457 gctl_error(req, "Cannot read passphrase: %s.", 458 strerror(errno)); 459 return (-1); 460 } 461 462 if (new) { 463 char tmpbuf[BUFSIZE]; 464 465 p = readpassphrase("Reenter new passphrase: ", 466 tmpbuf, sizeof(tmpbuf), 467 RPP_ECHO_OFF | RPP_REQUIRE_TTY); 468 if (p == NULL) { 469 explicit_bzero(passbuf, passbufsize); 470 gctl_error(req, 471 "Cannot read passphrase: %s.", 472 strerror(errno)); 473 return (-1); 474 } 475 476 if (strcmp(passbuf, tmpbuf) != 0) { 477 explicit_bzero(passbuf, passbufsize); 478 fprintf(stderr, "They didn't match.\n"); 479 continue; 480 } 481 explicit_bzero(tmpbuf, sizeof(tmpbuf)); 482 } 483 return (0); 484 } 485 /* NOTREACHED */ 486 } 487 488 static int 489 eli_genkey_passphrase(struct gctl_req *req, struct g_eli_metadata *md, bool new, 490 struct hmac_ctx *ctxp) 491 { 492 char passbuf[BUFSIZE]; 493 bool nopassphrase; 494 int nfiles; 495 496 /* 497 * Return error if the 'do not use passphrase' flag was given but a 498 * passfile was provided. 499 */ 500 nopassphrase = 501 gctl_get_int(req, new ? "nonewpassphrase" : "nopassphrase"); 502 if (nopassphrase) { 503 if (gctl_has_param(req, new ? "newpassfile0" : "passfile0")) { 504 gctl_error(req, 505 "Options -%c and -%c are mutually exclusive.", 506 new ? 'J' : 'j', new ? 'P' : 'p'); 507 return (-1); 508 } 509 return (0); 510 } 511 512 /* 513 * Return error if using a provider which does not require a passphrase 514 * but the 'do not use passphrase' flag was not given. 515 */ 516 if (!new && md->md_iterations == -1) { 517 gctl_error(req, "Missing -p flag."); 518 return (-1); 519 } 520 passbuf[0] = '\0'; 521 522 /* Use cached passphrase if defined. */ 523 if (strlen(cached_passphrase) > 0) { 524 strlcpy(passbuf, cached_passphrase, sizeof(passbuf)); 525 } else { 526 nfiles = eli_genkey_files(req, new, "passfile", NULL, passbuf, 527 sizeof(passbuf)); 528 if (nfiles == -1) { 529 return (-1); 530 } else if (nfiles == 0) { 531 if (eli_genkey_passphrase_prompt(req, new, passbuf, 532 sizeof(passbuf)) == -1) { 533 return (-1); 534 } 535 } 536 /* Cache the passphrase for other providers. */ 537 strlcpy(cached_passphrase, passbuf, sizeof(cached_passphrase)); 538 } 539 /* 540 * Field md_iterations equal to -1 means "choose some sane 541 * value for me". 542 */ 543 if (md->md_iterations == -1) { 544 assert(new); 545 if (verbose) 546 printf("Calculating number of iterations...\n"); 547 md->md_iterations = pkcs5v2_calculate(2000000); 548 assert(md->md_iterations > 0); 549 if (verbose) { 550 printf("Done, using %d iterations.\n", 551 md->md_iterations); 552 } 553 } 554 /* 555 * If md_iterations is equal to 0, user doesn't want PKCS#5v2. 556 */ 557 if (md->md_iterations == 0) { 558 g_eli_crypto_hmac_update(ctxp, md->md_salt, 559 sizeof(md->md_salt)); 560 g_eli_crypto_hmac_update(ctxp, passbuf, strlen(passbuf)); 561 } else /* if (md->md_iterations > 0) */ { 562 unsigned char dkey[G_ELI_USERKEYLEN]; 563 564 pkcs5v2_genkey(dkey, sizeof(dkey), md->md_salt, 565 sizeof(md->md_salt), passbuf, md->md_iterations); 566 g_eli_crypto_hmac_update(ctxp, dkey, sizeof(dkey)); 567 explicit_bzero(dkey, sizeof(dkey)); 568 } 569 explicit_bzero(passbuf, sizeof(passbuf)); 570 571 return (0); 572 } 573 574 static unsigned char * 575 eli_genkey(struct gctl_req *req, struct g_eli_metadata *md, unsigned char *key, 576 bool new) 577 { 578 struct hmac_ctx ctx; 579 bool nopassphrase; 580 int nfiles; 581 582 nopassphrase = 583 gctl_get_int(req, new ? "nonewpassphrase" : "nopassphrase"); 584 585 g_eli_crypto_hmac_init(&ctx, NULL, 0); 586 587 nfiles = eli_genkey_files(req, new, "keyfile", &ctx, NULL, 0); 588 if (nfiles == -1) 589 return (NULL); 590 else if (nfiles == 0 && nopassphrase) { 591 gctl_error(req, "No key components given."); 592 return (NULL); 593 } 594 595 if (eli_genkey_passphrase(req, md, new, &ctx) == -1) 596 return (NULL); 597 598 g_eli_crypto_hmac_final(&ctx, key, 0); 599 600 return (key); 601 } 602 603 static int 604 eli_metadata_read(struct gctl_req *req, const char *prov, 605 struct g_eli_metadata *md) 606 { 607 unsigned char sector[sizeof(struct g_eli_metadata)]; 608 int error; 609 610 if (g_get_sectorsize(prov) == 0) { 611 int fd; 612 613 /* This is a file probably. */ 614 fd = open(prov, O_RDONLY); 615 if (fd == -1) { 616 gctl_error(req, "Cannot open %s: %s.", prov, 617 strerror(errno)); 618 return (-1); 619 } 620 if (read(fd, sector, sizeof(sector)) != sizeof(sector)) { 621 gctl_error(req, "Cannot read metadata from %s: %s.", 622 prov, strerror(errno)); 623 close(fd); 624 return (-1); 625 } 626 close(fd); 627 } else { 628 /* This is a GEOM provider. */ 629 error = g_metadata_read(prov, sector, sizeof(sector), 630 G_ELI_MAGIC); 631 if (error != 0) { 632 gctl_error(req, "Cannot read metadata from %s: %s.", 633 prov, strerror(error)); 634 return (-1); 635 } 636 } 637 error = eli_metadata_decode(sector, md); 638 switch (error) { 639 case 0: 640 break; 641 case EOPNOTSUPP: 642 gctl_error(req, 643 "Provider's %s metadata version %u is too new.\n" 644 "geli: The highest supported version is %u.", 645 prov, (unsigned int)md->md_version, G_ELI_VERSION); 646 return (-1); 647 case EINVAL: 648 gctl_error(req, "Inconsistent provider's %s metadata.", prov); 649 return (-1); 650 default: 651 gctl_error(req, 652 "Unexpected error while decoding provider's %s metadata: %s.", 653 prov, strerror(error)); 654 return (-1); 655 } 656 return (0); 657 } 658 659 static int 660 eli_metadata_store(struct gctl_req *req, const char *prov, 661 struct g_eli_metadata *md) 662 { 663 unsigned char sector[sizeof(struct g_eli_metadata)]; 664 int error; 665 666 eli_metadata_encode(md, sector); 667 if (g_get_sectorsize(prov) == 0) { 668 int fd; 669 670 /* This is a file probably. */ 671 fd = open(prov, O_WRONLY | O_TRUNC); 672 if (fd == -1) { 673 gctl_error(req, "Cannot open %s: %s.", prov, 674 strerror(errno)); 675 explicit_bzero(sector, sizeof(sector)); 676 return (-1); 677 } 678 if (write(fd, sector, sizeof(sector)) != sizeof(sector)) { 679 gctl_error(req, "Cannot write metadata to %s: %s.", 680 prov, strerror(errno)); 681 explicit_bzero(sector, sizeof(sector)); 682 close(fd); 683 return (-1); 684 } 685 close(fd); 686 } else { 687 /* This is a GEOM provider. */ 688 error = g_metadata_store(prov, sector, sizeof(sector)); 689 if (error != 0) { 690 gctl_error(req, "Cannot write metadata to %s: %s.", 691 prov, strerror(errno)); 692 explicit_bzero(sector, sizeof(sector)); 693 return (-1); 694 } 695 } 696 explicit_bzero(sector, sizeof(sector)); 697 return (0); 698 } 699 700 static void 701 eli_init(struct gctl_req *req) 702 { 703 struct g_eli_metadata md; 704 struct gctl_req *r; 705 unsigned char sector[sizeof(struct g_eli_metadata)] __aligned(4); 706 unsigned char key[G_ELI_USERKEYLEN]; 707 char backfile[MAXPATHLEN]; 708 const char *str, *prov; 709 unsigned int secsize, eli_version; 710 off_t mediasize; 711 intmax_t val; 712 int error, i, nargs, nparams, param; 713 const int one = 1; 714 715 nargs = gctl_get_int(req, "nargs"); 716 if (nargs <= 0) { 717 gctl_error(req, "Too few arguments."); 718 return; 719 } 720 721 /* Start generating metadata for provider(s) being initialized. */ 722 explicit_bzero(&md, sizeof(md)); 723 strlcpy(md.md_magic, G_ELI_MAGIC, sizeof(md.md_magic)); 724 val = gctl_get_intmax(req, "mdversion"); 725 if (val == -1) { 726 eli_version = G_ELI_VERSION; 727 } else if (val < 0 || val > G_ELI_VERSION) { 728 gctl_error(req, 729 "Invalid version specified should be between %u and %u.", 730 G_ELI_VERSION_00, G_ELI_VERSION); 731 return; 732 } else { 733 eli_version = val; 734 } 735 md.md_version = eli_version; 736 md.md_flags = G_ELI_FLAG_AUTORESIZE; 737 if (gctl_get_int(req, "boot")) 738 md.md_flags |= G_ELI_FLAG_BOOT; 739 if (gctl_get_int(req, "geliboot")) 740 md.md_flags |= G_ELI_FLAG_GELIBOOT; 741 if (gctl_get_int(req, "displaypass")) 742 md.md_flags |= G_ELI_FLAG_GELIDISPLAYPASS; 743 if (gctl_get_int(req, "notrim")) 744 md.md_flags |= G_ELI_FLAG_NODELETE; 745 if (gctl_get_int(req, "noautoresize")) 746 md.md_flags &= ~G_ELI_FLAG_AUTORESIZE; 747 md.md_ealgo = CRYPTO_ALGORITHM_MIN - 1; 748 str = gctl_get_ascii(req, "aalgo"); 749 if (*str != '\0') { 750 if (eli_version < G_ELI_VERSION_01) { 751 gctl_error(req, 752 "Data authentication is supported starting from version %u.", 753 G_ELI_VERSION_01); 754 return; 755 } 756 md.md_aalgo = g_eli_str2aalgo(str); 757 if (md.md_aalgo >= CRYPTO_ALGORITHM_MIN && 758 md.md_aalgo <= CRYPTO_ALGORITHM_MAX) { 759 md.md_flags |= G_ELI_FLAG_AUTH; 760 } else { 761 /* 762 * For backward compatibility, check if the -a option 763 * was used to provide encryption algorithm. 764 */ 765 md.md_ealgo = g_eli_str2ealgo(str); 766 if (md.md_ealgo < CRYPTO_ALGORITHM_MIN || 767 md.md_ealgo > CRYPTO_ALGORITHM_MAX) { 768 gctl_error(req, 769 "Invalid authentication algorithm."); 770 return; 771 } else { 772 fprintf(stderr, "warning: The -e option, not " 773 "the -a option is now used to specify " 774 "encryption algorithm to use.\n"); 775 } 776 } 777 } 778 if (md.md_ealgo < CRYPTO_ALGORITHM_MIN || 779 md.md_ealgo > CRYPTO_ALGORITHM_MAX) { 780 str = gctl_get_ascii(req, "ealgo"); 781 if (*str == '\0') { 782 if (eli_version < G_ELI_VERSION_05) 783 str = "aes-cbc"; 784 else 785 str = GELI_ENC_ALGO; 786 } 787 md.md_ealgo = g_eli_str2ealgo(str); 788 if (md.md_ealgo < CRYPTO_ALGORITHM_MIN || 789 md.md_ealgo > CRYPTO_ALGORITHM_MAX) { 790 gctl_error(req, "Invalid encryption algorithm."); 791 return; 792 } 793 if (md.md_ealgo == CRYPTO_CAMELLIA_CBC && 794 eli_version < G_ELI_VERSION_04) { 795 gctl_error(req, 796 "Camellia-CBC algorithm is supported starting from version %u.", 797 G_ELI_VERSION_04); 798 return; 799 } 800 if (md.md_ealgo == CRYPTO_AES_XTS && 801 eli_version < G_ELI_VERSION_05) { 802 gctl_error(req, 803 "AES-XTS algorithm is supported starting from version %u.", 804 G_ELI_VERSION_05); 805 return; 806 } 807 } 808 if (md.md_flags & G_ELI_FLAG_AUTH) { 809 switch (md.md_aalgo) { 810 case CRYPTO_MD5_HMAC: 811 gctl_error(req, 812 "The %s authentication algorithm is deprecated.", 813 g_eli_algo2str(md.md_aalgo)); 814 return; 815 } 816 } 817 switch (md.md_ealgo) { 818 case CRYPTO_3DES_CBC: 819 case CRYPTO_BLF_CBC: 820 gctl_error(req, "The %s encryption algorithm is deprecated.", 821 g_eli_algo2str(md.md_ealgo)); 822 return; 823 } 824 val = gctl_get_intmax(req, "keylen"); 825 md.md_keylen = val; 826 md.md_keylen = g_eli_keylen(md.md_ealgo, md.md_keylen); 827 if (md.md_keylen == 0) { 828 gctl_error(req, "Invalid key length."); 829 return; 830 } 831 832 val = gctl_get_intmax(req, "iterations"); 833 if (val != -1) { 834 int nonewpassphrase; 835 836 /* 837 * Don't allow to set iterations when there will be no 838 * passphrase. 839 */ 840 nonewpassphrase = gctl_get_int(req, "nonewpassphrase"); 841 if (nonewpassphrase) { 842 gctl_error(req, 843 "Options -i and -P are mutually exclusive."); 844 return; 845 } 846 } 847 md.md_iterations = val; 848 849 val = gctl_get_intmax(req, "sectorsize"); 850 if (val > sysconf(_SC_PAGE_SIZE)) { 851 fprintf(stderr, 852 "warning: Using sectorsize bigger than the page size!\n"); 853 } 854 855 md.md_keys = 0x01; 856 857 /* 858 * Determine number of parameters in the parent geom request before the 859 * nargs parameter and list of providers. 860 */ 861 nparams = req->narg - nargs - 1; 862 863 /* Create new child request for each provider and issue to kernel */ 864 for (i = 0; i < nargs; i++) { 865 r = gctl_get_handle(); 866 867 /* Copy each parameter from the parent request to the child */ 868 for (param = 0; param < nparams; param++) { 869 gctl_ro_param(r, req->arg[param].name, 870 req->arg[param].len, req->arg[param].value); 871 } 872 873 /* Add a single provider to the parameter list of the child */ 874 gctl_ro_param(r, "nargs", sizeof(one), &one); 875 prov = gctl_get_ascii(req, "arg%d", i); 876 gctl_ro_param(r, "arg0", -1, prov); 877 878 mediasize = g_get_mediasize(prov); 879 secsize = g_get_sectorsize(prov); 880 if (mediasize == 0 || secsize == 0) { 881 gctl_error(r, "Cannot get information about %s: %s.", 882 prov, strerror(errno)); 883 goto out; 884 } 885 886 md.md_provsize = mediasize; 887 888 val = gctl_get_intmax(r, "sectorsize"); 889 if (val == 0) { 890 md.md_sectorsize = secsize; 891 } else { 892 if (val < 0 || (val % secsize) != 0 || !powerof2(val)) { 893 gctl_error(r, "Invalid sector size."); 894 goto out; 895 } 896 md.md_sectorsize = val; 897 } 898 899 /* Use different salt and Master Key for each provider. */ 900 arc4random_buf(md.md_salt, sizeof(md.md_salt)); 901 arc4random_buf(md.md_mkeys, sizeof(md.md_mkeys)); 902 903 /* Generate user key. */ 904 if (eli_genkey(r, &md, key, true) == NULL) { 905 /* 906 * Error generating key - details added to geom request 907 * by eli_genkey(). 908 */ 909 goto out; 910 } 911 912 /* Encrypt the first and the only Master Key. */ 913 error = g_eli_mkey_encrypt(md.md_ealgo, key, md.md_keylen, 914 md.md_mkeys); 915 if (error != 0) { 916 gctl_error(r, "Cannot encrypt Master Key: %s.", 917 strerror(error)); 918 goto out; 919 } 920 921 /* Convert metadata to on-disk format. */ 922 eli_metadata_encode(&md, sector); 923 924 /* Store metadata to disk. */ 925 error = g_metadata_store(prov, sector, sizeof(sector)); 926 if (error != 0) { 927 gctl_error(r, "Cannot store metadata on %s: %s.", prov, 928 strerror(error)); 929 goto out; 930 } 931 if (verbose) 932 printf("Metadata value stored on %s.\n", prov); 933 934 /* Backup metadata to a file. */ 935 const char *p = prov; 936 unsigned int j; 937 938 /* 939 * Check if provider string includes the devfs mountpoint 940 * (typically /dev/). 941 */ 942 if (strncmp(p, _PATH_DEV, sizeof(_PATH_DEV) - 1) == 0) { 943 /* Skip forward to the device filename only. */ 944 p += sizeof(_PATH_DEV) - 1; 945 } 946 947 str = gctl_get_ascii(r, "backupfile"); 948 if (str[0] != '\0') { 949 /* Backupfile given by the user, just copy it. */ 950 strlcpy(backfile, str, sizeof(backfile)); 951 952 /* If multiple providers have been initialized in one 953 * command, and the backup filename has been specified 954 * as anything other than "none", make the backup 955 * filename unique for each provider. */ 956 if (nargs > 1 && strcmp(backfile, "none") != 0) { 957 /* 958 * Replace first occurrence of "PROV" with 959 * provider name. 960 */ 961 str = strnstr(backfile, "PROV", 962 sizeof(backfile)); 963 if (str != NULL) { 964 char suffix[MAXPATHLEN]; 965 j = str - backfile; 966 strlcpy(suffix, &backfile[j+4], 967 sizeof(suffix)); 968 backfile[j] = '\0'; 969 strlcat(backfile, p, sizeof(backfile)); 970 strlcat(backfile, suffix, 971 sizeof(backfile)); 972 } else { 973 /* 974 * "PROV" not found in backfile, append 975 * provider name. 976 */ 977 strlcat(backfile, "-", 978 sizeof(backfile)); 979 strlcat(backfile, p, sizeof(backfile)); 980 } 981 } 982 } else { 983 /* Generate filename automatically. */ 984 snprintf(backfile, sizeof(backfile), "%s%s.eli", 985 GELI_BACKUP_DIR, p); 986 /* Replace all / with _. */ 987 for (j = strlen(GELI_BACKUP_DIR); backfile[j] != '\0'; 988 j++) { 989 if (backfile[j] == '/') 990 backfile[j] = '_'; 991 } 992 } 993 if (strcmp(backfile, "none") != 0 && 994 eli_backup_create(r, prov, backfile) == 0) { 995 printf("\nMetadata backup for provider %s can be found " 996 "in %s\n", prov, backfile); 997 printf("and can be restored with the following " 998 "command:\n"); 999 printf("\n\t# geli restore %s %s\n\n", backfile, prov); 1000 } 1001 1002 out: 1003 /* 1004 * Print error for this request, and set parent request error 1005 * message. 1006 */ 1007 if (r->error != NULL && r->error[0] != '\0') { 1008 warnx("%s", r->error); 1009 gctl_error(req, "There was an error with at least one " 1010 "provider."); 1011 } 1012 1013 gctl_free(r); 1014 1015 /* 1016 * Erase sensitive and provider specific data from memory. 1017 */ 1018 explicit_bzero(key, sizeof(key)); 1019 explicit_bzero(sector, sizeof(sector)); 1020 explicit_bzero(&md.md_provsize, sizeof(md.md_provsize)); 1021 explicit_bzero(&md.md_sectorsize, sizeof(md.md_sectorsize)); 1022 explicit_bzero(&md.md_salt, sizeof(md.md_salt)); 1023 explicit_bzero(&md.md_mkeys, sizeof(md.md_mkeys)); 1024 } 1025 1026 /* Clear the cached metadata, including keys. */ 1027 explicit_bzero(&md, sizeof(md)); 1028 } 1029 1030 static void 1031 eli_attach(struct gctl_req *req) 1032 { 1033 struct g_eli_metadata md; 1034 struct gctl_req *r; 1035 const char *prov; 1036 off_t mediasize; 1037 int i, nargs, nparams, param; 1038 const int one = 1; 1039 1040 nargs = gctl_get_int(req, "nargs"); 1041 if (nargs <= 0) { 1042 gctl_error(req, "Too few arguments."); 1043 return; 1044 } 1045 1046 unsigned char key[G_ELI_USERKEYLEN]; 1047 1048 /* 1049 * Determine number of parameters in the parent geom request before the 1050 * nargs parameter and list of providers. 1051 */ 1052 nparams = req->narg - nargs - 1; 1053 1054 /* Create new child request for each provider and issue to kernel */ 1055 for (i = 0; i < nargs; i++) { 1056 r = gctl_get_handle(); 1057 1058 /* Copy each parameter from the parent request to the child */ 1059 for (param = 0; param < nparams; param++) { 1060 gctl_ro_param(r, req->arg[param].name, 1061 req->arg[param].len, req->arg[param].value); 1062 } 1063 1064 /* Add a single provider to the parameter list of the child */ 1065 gctl_ro_param(r, "nargs", sizeof(one), &one); 1066 prov = gctl_get_ascii(req, "arg%d", i); 1067 gctl_ro_param(r, "arg0", -1, prov); 1068 1069 if (eli_metadata_read(r, prov, &md) == -1) { 1070 /* 1071 * Error reading metadata - details added to geom 1072 * request by eli_metadata_read(). 1073 */ 1074 goto out; 1075 } 1076 1077 mediasize = g_get_mediasize(prov); 1078 if (md.md_provsize != (uint64_t)mediasize) { 1079 gctl_error(r, "Provider size mismatch."); 1080 goto out; 1081 } 1082 1083 if (eli_genkey(r, &md, key, false) == NULL) { 1084 /* 1085 * Error generating key - details added to geom request 1086 * by eli_genkey(). 1087 */ 1088 goto out; 1089 } 1090 1091 gctl_ro_param(r, "key", sizeof(key), key); 1092 1093 if (gctl_issue(r) == NULL) { 1094 if (verbose) 1095 printf("Attached to %s.\n", prov); 1096 } 1097 1098 out: 1099 /* 1100 * Print error for this request, and set parent request error 1101 * message. 1102 */ 1103 if (r->error != NULL && r->error[0] != '\0') { 1104 warnx("%s", r->error); 1105 gctl_error(req, "There was an error with at least one " 1106 "provider."); 1107 } 1108 1109 gctl_free(r); 1110 1111 /* Clear sensitive data from memory. */ 1112 explicit_bzero(key, sizeof(key)); 1113 } 1114 1115 /* Clear sensitive data from memory. */ 1116 explicit_bzero(cached_passphrase, sizeof(cached_passphrase)); 1117 } 1118 1119 static void 1120 eli_configure_detached(struct gctl_req *req, const char *prov, int boot, 1121 int geliboot, int displaypass, int trim, int autoresize) 1122 { 1123 struct g_eli_metadata md; 1124 bool changed = 0; 1125 1126 if (eli_metadata_read(req, prov, &md) == -1) 1127 return; 1128 1129 if (boot == 1 && (md.md_flags & G_ELI_FLAG_BOOT)) { 1130 if (verbose) 1131 printf("BOOT flag already configured for %s.\n", prov); 1132 } else if (boot == 0 && !(md.md_flags & G_ELI_FLAG_BOOT)) { 1133 if (verbose) 1134 printf("BOOT flag not configured for %s.\n", prov); 1135 } else if (boot >= 0) { 1136 if (boot) 1137 md.md_flags |= G_ELI_FLAG_BOOT; 1138 else 1139 md.md_flags &= ~G_ELI_FLAG_BOOT; 1140 changed = 1; 1141 } 1142 1143 if (geliboot == 1 && (md.md_flags & G_ELI_FLAG_GELIBOOT)) { 1144 if (verbose) 1145 printf("GELIBOOT flag already configured for %s.\n", prov); 1146 } else if (geliboot == 0 && !(md.md_flags & G_ELI_FLAG_GELIBOOT)) { 1147 if (verbose) 1148 printf("GELIBOOT flag not configured for %s.\n", prov); 1149 } else if (geliboot >= 0) { 1150 if (geliboot) 1151 md.md_flags |= G_ELI_FLAG_GELIBOOT; 1152 else 1153 md.md_flags &= ~G_ELI_FLAG_GELIBOOT; 1154 changed = 1; 1155 } 1156 1157 if (displaypass == 1 && (md.md_flags & G_ELI_FLAG_GELIDISPLAYPASS)) { 1158 if (verbose) 1159 printf("GELIDISPLAYPASS flag already configured for %s.\n", prov); 1160 } else if (displaypass == 0 && 1161 !(md.md_flags & G_ELI_FLAG_GELIDISPLAYPASS)) { 1162 if (verbose) 1163 printf("GELIDISPLAYPASS flag not configured for %s.\n", prov); 1164 } else if (displaypass >= 0) { 1165 if (displaypass) 1166 md.md_flags |= G_ELI_FLAG_GELIDISPLAYPASS; 1167 else 1168 md.md_flags &= ~G_ELI_FLAG_GELIDISPLAYPASS; 1169 changed = 1; 1170 } 1171 1172 if (trim == 0 && (md.md_flags & G_ELI_FLAG_NODELETE)) { 1173 if (verbose) 1174 printf("TRIM disable flag already configured for %s.\n", prov); 1175 } else if (trim == 1 && !(md.md_flags & G_ELI_FLAG_NODELETE)) { 1176 if (verbose) 1177 printf("TRIM disable flag not configured for %s.\n", prov); 1178 } else if (trim >= 0) { 1179 if (trim) 1180 md.md_flags &= ~G_ELI_FLAG_NODELETE; 1181 else 1182 md.md_flags |= G_ELI_FLAG_NODELETE; 1183 changed = 1; 1184 } 1185 1186 if (autoresize == 1 && (md.md_flags & G_ELI_FLAG_AUTORESIZE)) { 1187 if (verbose) 1188 printf("AUTORESIZE flag already configured for %s.\n", prov); 1189 } else if (autoresize == 0 && !(md.md_flags & G_ELI_FLAG_AUTORESIZE)) { 1190 if (verbose) 1191 printf("AUTORESIZE flag not configured for %s.\n", prov); 1192 } else if (autoresize >= 0) { 1193 if (autoresize) 1194 md.md_flags |= G_ELI_FLAG_AUTORESIZE; 1195 else 1196 md.md_flags &= ~G_ELI_FLAG_AUTORESIZE; 1197 changed = 1; 1198 } 1199 1200 if (changed) 1201 eli_metadata_store(req, prov, &md); 1202 explicit_bzero(&md, sizeof(md)); 1203 } 1204 1205 static void 1206 eli_configure(struct gctl_req *req) 1207 { 1208 const char *prov; 1209 bool boot, noboot, geliboot, nogeliboot, displaypass, nodisplaypass; 1210 bool autoresize, noautoresize, trim, notrim; 1211 int doboot, dogeliboot, dodisplaypass, dotrim, doautoresize; 1212 int i, nargs; 1213 1214 nargs = gctl_get_int(req, "nargs"); 1215 if (nargs == 0) { 1216 gctl_error(req, "Too few arguments."); 1217 return; 1218 } 1219 1220 boot = gctl_get_int(req, "boot"); 1221 noboot = gctl_get_int(req, "noboot"); 1222 geliboot = gctl_get_int(req, "geliboot"); 1223 nogeliboot = gctl_get_int(req, "nogeliboot"); 1224 displaypass = gctl_get_int(req, "displaypass"); 1225 nodisplaypass = gctl_get_int(req, "nodisplaypass"); 1226 trim = gctl_get_int(req, "trim"); 1227 notrim = gctl_get_int(req, "notrim"); 1228 autoresize = gctl_get_int(req, "autoresize"); 1229 noautoresize = gctl_get_int(req, "noautoresize"); 1230 1231 doboot = -1; 1232 if (boot && noboot) { 1233 gctl_error(req, "Options -b and -B are mutually exclusive."); 1234 return; 1235 } 1236 if (boot) 1237 doboot = 1; 1238 else if (noboot) 1239 doboot = 0; 1240 1241 dogeliboot = -1; 1242 if (geliboot && nogeliboot) { 1243 gctl_error(req, "Options -g and -G are mutually exclusive."); 1244 return; 1245 } 1246 if (geliboot) 1247 dogeliboot = 1; 1248 else if (nogeliboot) 1249 dogeliboot = 0; 1250 1251 dodisplaypass = -1; 1252 if (displaypass && nodisplaypass) { 1253 gctl_error(req, "Options -d and -D are mutually exclusive."); 1254 return; 1255 } 1256 if (displaypass) 1257 dodisplaypass = 1; 1258 else if (nodisplaypass) 1259 dodisplaypass = 0; 1260 1261 dotrim = -1; 1262 if (trim && notrim) { 1263 gctl_error(req, "Options -t and -T are mutually exclusive."); 1264 return; 1265 } 1266 if (trim) 1267 dotrim = 1; 1268 else if (notrim) 1269 dotrim = 0; 1270 1271 doautoresize = -1; 1272 if (autoresize && noautoresize) { 1273 gctl_error(req, "Options -r and -R are mutually exclusive."); 1274 return; 1275 } 1276 if (autoresize) 1277 doautoresize = 1; 1278 else if (noautoresize) 1279 doautoresize = 0; 1280 1281 if (doboot == -1 && dogeliboot == -1 && dodisplaypass == -1 && 1282 dotrim == -1 && doautoresize == -1) { 1283 gctl_error(req, "No option given."); 1284 return; 1285 } 1286 1287 /* First attached providers. */ 1288 gctl_issue(req); 1289 /* Now the rest. */ 1290 for (i = 0; i < nargs; i++) { 1291 prov = gctl_get_ascii(req, "arg%d", i); 1292 if (!eli_is_attached(prov)) { 1293 eli_configure_detached(req, prov, doboot, dogeliboot, 1294 dodisplaypass, dotrim, doautoresize); 1295 } 1296 } 1297 } 1298 1299 static void 1300 eli_setkey_attached(struct gctl_req *req, struct g_eli_metadata *md) 1301 { 1302 unsigned char key[G_ELI_USERKEYLEN]; 1303 intmax_t val, old = 0; 1304 int error; 1305 1306 val = gctl_get_intmax(req, "iterations"); 1307 /* Check if iterations number should be changed. */ 1308 if (val != -1) 1309 md->md_iterations = val; 1310 else 1311 old = md->md_iterations; 1312 1313 /* Generate key for Master Key encryption. */ 1314 if (eli_genkey(req, md, key, true) == NULL) { 1315 explicit_bzero(key, sizeof(key)); 1316 return; 1317 } 1318 /* 1319 * If number of iterations has changed, but wasn't given as a 1320 * command-line argument, update the request. 1321 */ 1322 if (val == -1 && md->md_iterations != old) { 1323 error = gctl_change_param(req, "iterations", sizeof(intmax_t), 1324 &md->md_iterations); 1325 assert(error == 0); 1326 } 1327 1328 gctl_ro_param(req, "key", sizeof(key), key); 1329 gctl_issue(req); 1330 explicit_bzero(key, sizeof(key)); 1331 } 1332 1333 static void 1334 eli_setkey_detached(struct gctl_req *req, const char *prov, 1335 struct g_eli_metadata *md) 1336 { 1337 unsigned char key[G_ELI_USERKEYLEN], mkey[G_ELI_DATAIVKEYLEN]; 1338 unsigned char *mkeydst; 1339 unsigned int nkey; 1340 intmax_t val; 1341 int error; 1342 1343 if (md->md_keys == 0) { 1344 gctl_error(req, "No valid keys on %s.", prov); 1345 return; 1346 } 1347 1348 /* Generate key for Master Key decryption. */ 1349 if (eli_genkey(req, md, key, false) == NULL) { 1350 explicit_bzero(key, sizeof(key)); 1351 return; 1352 } 1353 1354 /* Decrypt Master Key. */ 1355 error = g_eli_mkey_decrypt_any(md, key, mkey, &nkey); 1356 explicit_bzero(key, sizeof(key)); 1357 if (error != 0) { 1358 explicit_bzero(md, sizeof(*md)); 1359 if (error == -1) 1360 gctl_error(req, "Wrong key for %s.", prov); 1361 else /* if (error > 0) */ { 1362 gctl_error(req, "Cannot decrypt Master Key: %s.", 1363 strerror(error)); 1364 } 1365 return; 1366 } 1367 if (verbose) 1368 printf("Decrypted Master Key %u.\n", nkey); 1369 1370 val = gctl_get_intmax(req, "keyno"); 1371 if (val != -1) 1372 nkey = val; 1373 #if 0 1374 else 1375 ; /* Use the key number which was found during decryption. */ 1376 #endif 1377 if (nkey >= G_ELI_MAXMKEYS) { 1378 gctl_error(req, "Invalid '%s' argument.", "keyno"); 1379 return; 1380 } 1381 1382 val = gctl_get_intmax(req, "iterations"); 1383 /* Check if iterations number should and can be changed. */ 1384 if (val != -1 && md->md_iterations == -1) { 1385 md->md_iterations = val; 1386 } else if (val != -1 && val != md->md_iterations) { 1387 if (bitcount32(md->md_keys) != 1) { 1388 gctl_error(req, "To be able to use '-i' option, only " 1389 "one key can be defined."); 1390 return; 1391 } 1392 if (md->md_keys != (1 << nkey)) { 1393 gctl_error(req, "Only already defined key can be " 1394 "changed when '-i' option is used."); 1395 return; 1396 } 1397 md->md_iterations = val; 1398 } 1399 1400 mkeydst = md->md_mkeys + nkey * G_ELI_MKEYLEN; 1401 md->md_keys |= (1 << nkey); 1402 1403 bcopy(mkey, mkeydst, sizeof(mkey)); 1404 explicit_bzero(mkey, sizeof(mkey)); 1405 1406 /* Generate key for Master Key encryption. */ 1407 if (eli_genkey(req, md, key, true) == NULL) { 1408 explicit_bzero(key, sizeof(key)); 1409 explicit_bzero(md, sizeof(*md)); 1410 return; 1411 } 1412 1413 /* Encrypt the Master-Key with the new key. */ 1414 error = g_eli_mkey_encrypt(md->md_ealgo, key, md->md_keylen, mkeydst); 1415 explicit_bzero(key, sizeof(key)); 1416 if (error != 0) { 1417 explicit_bzero(md, sizeof(*md)); 1418 gctl_error(req, "Cannot encrypt Master Key: %s.", 1419 strerror(error)); 1420 return; 1421 } 1422 1423 /* Store metadata with fresh key. */ 1424 eli_metadata_store(req, prov, md); 1425 explicit_bzero(md, sizeof(*md)); 1426 } 1427 1428 static void 1429 eli_setkey(struct gctl_req *req) 1430 { 1431 struct g_eli_metadata md; 1432 const char *prov; 1433 int nargs; 1434 1435 nargs = gctl_get_int(req, "nargs"); 1436 if (nargs != 1) { 1437 gctl_error(req, "Invalid number of arguments."); 1438 return; 1439 } 1440 prov = gctl_get_ascii(req, "arg0"); 1441 1442 if (eli_metadata_read(req, prov, &md) == -1) 1443 return; 1444 1445 if (eli_is_attached(prov)) 1446 eli_setkey_attached(req, &md); 1447 else 1448 eli_setkey_detached(req, prov, &md); 1449 1450 if (req->error == NULL || req->error[0] == '\0') { 1451 printf("Note, that the master key encrypted with old keys " 1452 "and/or passphrase may still exists in a metadata backup " 1453 "file.\n"); 1454 } 1455 } 1456 1457 static void 1458 eli_delkey_attached(struct gctl_req *req, const char *prov __unused) 1459 { 1460 1461 gctl_issue(req); 1462 } 1463 1464 static void 1465 eli_delkey_detached(struct gctl_req *req, const char *prov) 1466 { 1467 struct g_eli_metadata md; 1468 unsigned char *mkeydst; 1469 unsigned int nkey; 1470 intmax_t val; 1471 bool all, force; 1472 1473 if (eli_metadata_read(req, prov, &md) == -1) 1474 return; 1475 1476 all = gctl_get_int(req, "all"); 1477 if (all) 1478 arc4random_buf(md.md_mkeys, sizeof(md.md_mkeys)); 1479 else { 1480 force = gctl_get_int(req, "force"); 1481 val = gctl_get_intmax(req, "keyno"); 1482 if (val == -1) { 1483 gctl_error(req, "Key number has to be specified."); 1484 return; 1485 } 1486 nkey = val; 1487 if (nkey >= G_ELI_MAXMKEYS) { 1488 gctl_error(req, "Invalid '%s' argument.", "keyno"); 1489 return; 1490 } 1491 if (!(md.md_keys & (1 << nkey)) && !force) { 1492 gctl_error(req, "Master Key %u is not set.", nkey); 1493 return; 1494 } 1495 md.md_keys &= ~(1 << nkey); 1496 if (md.md_keys == 0 && !force) { 1497 gctl_error(req, "This is the last Master Key. Use '-f' " 1498 "option if you really want to remove it."); 1499 return; 1500 } 1501 mkeydst = md.md_mkeys + nkey * G_ELI_MKEYLEN; 1502 arc4random_buf(mkeydst, G_ELI_MKEYLEN); 1503 } 1504 1505 eli_metadata_store(req, prov, &md); 1506 explicit_bzero(&md, sizeof(md)); 1507 } 1508 1509 static void 1510 eli_delkey(struct gctl_req *req) 1511 { 1512 const char *prov; 1513 int nargs; 1514 1515 nargs = gctl_get_int(req, "nargs"); 1516 if (nargs != 1) { 1517 gctl_error(req, "Invalid number of arguments."); 1518 return; 1519 } 1520 prov = gctl_get_ascii(req, "arg0"); 1521 1522 if (eli_is_attached(prov)) 1523 eli_delkey_attached(req, prov); 1524 else 1525 eli_delkey_detached(req, prov); 1526 } 1527 1528 static void 1529 eli_resume(struct gctl_req *req) 1530 { 1531 struct g_eli_metadata md; 1532 unsigned char key[G_ELI_USERKEYLEN]; 1533 const char *prov; 1534 off_t mediasize; 1535 int nargs; 1536 1537 nargs = gctl_get_int(req, "nargs"); 1538 if (nargs != 1) { 1539 gctl_error(req, "Invalid number of arguments."); 1540 return; 1541 } 1542 prov = gctl_get_ascii(req, "arg0"); 1543 1544 if (eli_metadata_read(req, prov, &md) == -1) 1545 return; 1546 1547 mediasize = g_get_mediasize(prov); 1548 if (md.md_provsize != (uint64_t)mediasize) { 1549 gctl_error(req, "Provider size mismatch."); 1550 return; 1551 } 1552 1553 if (eli_genkey(req, &md, key, false) == NULL) { 1554 explicit_bzero(key, sizeof(key)); 1555 return; 1556 } 1557 1558 gctl_ro_param(req, "key", sizeof(key), key); 1559 if (gctl_issue(req) == NULL) { 1560 if (verbose) 1561 printf("Resumed %s.\n", prov); 1562 } 1563 explicit_bzero(key, sizeof(key)); 1564 } 1565 1566 static int 1567 eli_trash_metadata(struct gctl_req *req, const char *prov, int fd, off_t offset) 1568 { 1569 unsigned int overwrites; 1570 unsigned char *sector; 1571 ssize_t size; 1572 int error; 1573 1574 size = sizeof(overwrites); 1575 if (sysctlbyname("kern.geom.eli.overwrites", &overwrites, &size, 1576 NULL, 0) == -1 || overwrites == 0) { 1577 overwrites = G_ELI_OVERWRITES; 1578 } 1579 1580 size = g_sectorsize(fd); 1581 if (size <= 0) { 1582 gctl_error(req, "Cannot obtain provider sector size %s: %s.", 1583 prov, strerror(errno)); 1584 return (-1); 1585 } 1586 sector = malloc(size); 1587 if (sector == NULL) { 1588 gctl_error(req, "Cannot allocate %zd bytes of memory.", size); 1589 return (-1); 1590 } 1591 1592 error = 0; 1593 do { 1594 arc4random_buf(sector, size); 1595 if (pwrite(fd, sector, size, offset) != size) { 1596 if (error == 0) 1597 error = errno; 1598 } 1599 (void)g_flush(fd); 1600 } while (--overwrites > 0); 1601 free(sector); 1602 if (error != 0) { 1603 gctl_error(req, "Cannot trash metadata on provider %s: %s.", 1604 prov, strerror(error)); 1605 return (-1); 1606 } 1607 return (0); 1608 } 1609 1610 static void 1611 eli_kill_detached(struct gctl_req *req, const char *prov) 1612 { 1613 off_t offset; 1614 int fd; 1615 1616 /* 1617 * NOTE: Maybe we should verify if this is geli provider first, 1618 * but 'kill' command is quite critical so better don't waste 1619 * the time. 1620 */ 1621 #if 0 1622 error = g_metadata_read(prov, (unsigned char *)&md, sizeof(md), 1623 G_ELI_MAGIC); 1624 if (error != 0) { 1625 gctl_error(req, "Cannot read metadata from %s: %s.", prov, 1626 strerror(error)); 1627 return; 1628 } 1629 #endif 1630 1631 fd = g_open(prov, 1); 1632 if (fd == -1) { 1633 gctl_error(req, "Cannot open provider %s: %s.", prov, 1634 strerror(errno)); 1635 return; 1636 } 1637 offset = g_mediasize(fd) - g_sectorsize(fd); 1638 if (offset <= 0) { 1639 gctl_error(req, 1640 "Cannot obtain media size or sector size for provider %s: %s.", 1641 prov, strerror(errno)); 1642 (void)g_close(fd); 1643 return; 1644 } 1645 (void)eli_trash_metadata(req, prov, fd, offset); 1646 (void)g_close(fd); 1647 } 1648 1649 static void 1650 eli_kill(struct gctl_req *req) 1651 { 1652 const char *prov; 1653 int i, nargs, all; 1654 1655 nargs = gctl_get_int(req, "nargs"); 1656 all = gctl_get_int(req, "all"); 1657 if (!all && nargs == 0) { 1658 gctl_error(req, "Too few arguments."); 1659 return; 1660 } 1661 /* 1662 * How '-a' option combine with a list of providers: 1663 * Delete Master Keys from all attached providers: 1664 * geli kill -a 1665 * Delete Master Keys from all attached providers and from 1666 * detached da0 and da1: 1667 * geli kill -a da0 da1 1668 * Delete Master Keys from (attached or detached) da0 and da1: 1669 * geli kill da0 da1 1670 */ 1671 1672 /* First detached providers. */ 1673 for (i = 0; i < nargs; i++) { 1674 prov = gctl_get_ascii(req, "arg%d", i); 1675 if (!eli_is_attached(prov)) 1676 eli_kill_detached(req, prov); 1677 } 1678 /* Now attached providers. */ 1679 gctl_issue(req); 1680 } 1681 1682 static int 1683 eli_backup_create(struct gctl_req *req, const char *prov, const char *file) 1684 { 1685 unsigned char *sector; 1686 ssize_t secsize; 1687 int error, filefd, ret; 1688 1689 ret = -1; 1690 filefd = -1; 1691 sector = NULL; 1692 secsize = 0; 1693 1694 secsize = g_get_sectorsize(prov); 1695 if (secsize == 0) { 1696 gctl_error(req, "Cannot get informations about %s: %s.", prov, 1697 strerror(errno)); 1698 goto out; 1699 } 1700 sector = malloc(secsize); 1701 if (sector == NULL) { 1702 gctl_error(req, "Cannot allocate memory."); 1703 goto out; 1704 } 1705 /* Read metadata from the provider. */ 1706 error = g_metadata_read(prov, sector, secsize, G_ELI_MAGIC); 1707 if (error != 0) { 1708 gctl_error(req, "Unable to read metadata from %s: %s.", prov, 1709 strerror(error)); 1710 goto out; 1711 } 1712 1713 filefd = open(file, O_WRONLY | O_TRUNC | O_CREAT, 0600); 1714 if (filefd == -1) { 1715 gctl_error(req, "Unable to open %s: %s.", file, 1716 strerror(errno)); 1717 goto out; 1718 } 1719 /* Write metadata to the destination file. */ 1720 if (write(filefd, sector, secsize) != secsize) { 1721 gctl_error(req, "Unable to write to %s: %s.", file, 1722 strerror(errno)); 1723 (void)close(filefd); 1724 (void)unlink(file); 1725 goto out; 1726 } 1727 (void)fsync(filefd); 1728 (void)close(filefd); 1729 /* Success. */ 1730 ret = 0; 1731 out: 1732 if (sector != NULL) { 1733 explicit_bzero(sector, secsize); 1734 free(sector); 1735 } 1736 return (ret); 1737 } 1738 1739 static void 1740 eli_backup(struct gctl_req *req) 1741 { 1742 const char *file, *prov; 1743 int nargs; 1744 1745 nargs = gctl_get_int(req, "nargs"); 1746 if (nargs != 2) { 1747 gctl_error(req, "Invalid number of arguments."); 1748 return; 1749 } 1750 prov = gctl_get_ascii(req, "arg0"); 1751 file = gctl_get_ascii(req, "arg1"); 1752 1753 eli_backup_create(req, prov, file); 1754 } 1755 1756 static void 1757 eli_restore(struct gctl_req *req) 1758 { 1759 struct g_eli_metadata md; 1760 const char *file, *prov; 1761 off_t mediasize; 1762 int nargs; 1763 1764 nargs = gctl_get_int(req, "nargs"); 1765 if (nargs != 2) { 1766 gctl_error(req, "Invalid number of arguments."); 1767 return; 1768 } 1769 file = gctl_get_ascii(req, "arg0"); 1770 prov = gctl_get_ascii(req, "arg1"); 1771 1772 /* Read metadata from the backup file. */ 1773 if (eli_metadata_read(req, file, &md) == -1) 1774 return; 1775 /* Obtain provider's mediasize. */ 1776 mediasize = g_get_mediasize(prov); 1777 if (mediasize == 0) { 1778 gctl_error(req, "Cannot get informations about %s: %s.", prov, 1779 strerror(errno)); 1780 return; 1781 } 1782 /* Check if the provider size has changed since we did the backup. */ 1783 if (md.md_provsize != (uint64_t)mediasize) { 1784 if (gctl_get_int(req, "force")) { 1785 md.md_provsize = mediasize; 1786 } else { 1787 gctl_error(req, "Provider size mismatch: " 1788 "wrong backup file?"); 1789 return; 1790 } 1791 } 1792 /* Write metadata to the provider. */ 1793 (void)eli_metadata_store(req, prov, &md); 1794 } 1795 1796 static void 1797 eli_resize(struct gctl_req *req) 1798 { 1799 struct g_eli_metadata md; 1800 const char *prov; 1801 unsigned char *sector; 1802 ssize_t secsize; 1803 off_t mediasize, oldsize; 1804 int error, nargs, provfd; 1805 1806 nargs = gctl_get_int(req, "nargs"); 1807 if (nargs != 1) { 1808 gctl_error(req, "Invalid number of arguments."); 1809 return; 1810 } 1811 prov = gctl_get_ascii(req, "arg0"); 1812 1813 provfd = -1; 1814 sector = NULL; 1815 secsize = 0; 1816 1817 provfd = g_open(prov, 1); 1818 if (provfd == -1) { 1819 gctl_error(req, "Cannot open %s: %s.", prov, strerror(errno)); 1820 goto out; 1821 } 1822 1823 mediasize = g_mediasize(provfd); 1824 secsize = g_sectorsize(provfd); 1825 if (mediasize == -1 || secsize == -1) { 1826 gctl_error(req, "Cannot get information about %s: %s.", prov, 1827 strerror(errno)); 1828 goto out; 1829 } 1830 1831 sector = malloc(secsize); 1832 if (sector == NULL) { 1833 gctl_error(req, "Cannot allocate memory."); 1834 goto out; 1835 } 1836 1837 oldsize = gctl_get_intmax(req, "oldsize"); 1838 if (oldsize < 0 || oldsize > mediasize) { 1839 gctl_error(req, "Invalid oldsize: Out of range."); 1840 goto out; 1841 } 1842 if (oldsize == mediasize) { 1843 gctl_error(req, "Size hasn't changed."); 1844 goto out; 1845 } 1846 1847 /* Read metadata from the 'oldsize' offset. */ 1848 if (pread(provfd, sector, secsize, oldsize - secsize) != secsize) { 1849 gctl_error(req, "Cannot read old metadata: %s.", 1850 strerror(errno)); 1851 goto out; 1852 } 1853 1854 /* Check if this sector contains geli metadata. */ 1855 error = eli_metadata_decode(sector, &md); 1856 switch (error) { 1857 case 0: 1858 break; 1859 case EOPNOTSUPP: 1860 gctl_error(req, 1861 "Provider's %s metadata version %u is too new.\n" 1862 "geli: The highest supported version is %u.", 1863 prov, (unsigned int)md.md_version, G_ELI_VERSION); 1864 goto out; 1865 case EINVAL: 1866 gctl_error(req, "Inconsistent provider's %s metadata.", prov); 1867 goto out; 1868 default: 1869 gctl_error(req, 1870 "Unexpected error while decoding provider's %s metadata: %s.", 1871 prov, strerror(error)); 1872 goto out; 1873 } 1874 1875 /* 1876 * If the old metadata doesn't have a correct provider size, refuse 1877 * to resize. 1878 */ 1879 if (md.md_provsize != (uint64_t)oldsize) { 1880 gctl_error(req, "Provider size mismatch at oldsize."); 1881 goto out; 1882 } 1883 1884 /* 1885 * Update the old metadata with the current provider size and write 1886 * it back to the correct place on the provider. 1887 */ 1888 md.md_provsize = mediasize; 1889 /* Write metadata to the provider. */ 1890 (void)eli_metadata_store(req, prov, &md); 1891 /* Now trash the old metadata. */ 1892 (void)eli_trash_metadata(req, prov, provfd, oldsize - secsize); 1893 out: 1894 if (provfd != -1) 1895 (void)g_close(provfd); 1896 if (sector != NULL) { 1897 explicit_bzero(sector, secsize); 1898 free(sector); 1899 } 1900 } 1901 1902 static void 1903 eli_version(struct gctl_req *req) 1904 { 1905 struct g_eli_metadata md; 1906 const char *name; 1907 unsigned int eli_version; 1908 int error, i, nargs; 1909 1910 nargs = gctl_get_int(req, "nargs"); 1911 1912 if (nargs == 0) { 1913 unsigned int kernver; 1914 ssize_t size; 1915 1916 size = sizeof(kernver); 1917 if (sysctlbyname("kern.geom.eli.version", &kernver, &size, 1918 NULL, 0) == -1) { 1919 warn("Unable to obtain GELI kernel version"); 1920 } else { 1921 printf("kernel: %u\n", kernver); 1922 } 1923 printf("userland: %u\n", G_ELI_VERSION); 1924 return; 1925 } 1926 1927 for (i = 0; i < nargs; i++) { 1928 name = gctl_get_ascii(req, "arg%d", i); 1929 error = g_metadata_read(name, (unsigned char *)&md, 1930 sizeof(md), G_ELI_MAGIC); 1931 if (error != 0) { 1932 warn("%s: Unable to read metadata: %s.", name, 1933 strerror(error)); 1934 gctl_error(req, "Not fully done."); 1935 continue; 1936 } 1937 eli_version = le32dec(&md.md_version); 1938 printf("%s: %u\n", name, eli_version); 1939 } 1940 } 1941 1942 static void 1943 eli_clear(struct gctl_req *req) 1944 { 1945 const char *name; 1946 int error, i, nargs; 1947 1948 nargs = gctl_get_int(req, "nargs"); 1949 if (nargs < 1) { 1950 gctl_error(req, "Too few arguments."); 1951 return; 1952 } 1953 1954 for (i = 0; i < nargs; i++) { 1955 name = gctl_get_ascii(req, "arg%d", i); 1956 error = g_metadata_clear(name, G_ELI_MAGIC); 1957 if (error != 0) { 1958 fprintf(stderr, "Cannot clear metadata on %s: %s.\n", 1959 name, strerror(error)); 1960 gctl_error(req, "Not fully done."); 1961 continue; 1962 } 1963 if (verbose) 1964 printf("Metadata cleared on %s.\n", name); 1965 } 1966 } 1967 1968 static void 1969 eli_dump(struct gctl_req *req) 1970 { 1971 struct g_eli_metadata md; 1972 const char *name; 1973 int i, nargs; 1974 1975 nargs = gctl_get_int(req, "nargs"); 1976 if (nargs < 1) { 1977 gctl_error(req, "Too few arguments."); 1978 return; 1979 } 1980 1981 for (i = 0; i < nargs; i++) { 1982 name = gctl_get_ascii(req, "arg%d", i); 1983 if (eli_metadata_read(NULL, name, &md) == -1) { 1984 gctl_error(req, "Not fully done."); 1985 continue; 1986 } 1987 printf("Metadata on %s:\n", name); 1988 eli_metadata_dump(&md); 1989 printf("\n"); 1990 } 1991 } 1992