1 /*- 2 * Copyright (c) 2004-2009 Pawel Jakub Dawidek <pjd@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include <sys/param.h> 31 #include <sys/linker.h> 32 #include <sys/module.h> 33 #include <sys/stat.h> 34 #include <sys/sysctl.h> 35 #include <ctype.h> 36 #include <err.h> 37 #include <errno.h> 38 #include <stdio.h> 39 #include <stdlib.h> 40 #include <stdarg.h> 41 #include <stdint.h> 42 #include <string.h> 43 #include <unistd.h> 44 #include <libgen.h> 45 #include <libutil.h> 46 #include <inttypes.h> 47 #include <dlfcn.h> 48 #include <assert.h> 49 #include <libgeom.h> 50 #include <geom.h> 51 52 #include "misc/subr.h" 53 54 #ifdef STATIC_GEOM_CLASSES 55 extern uint32_t gpart_version; 56 extern struct g_command gpart_class_commands[]; 57 extern uint32_t glabel_version; 58 extern struct g_command glabel_class_commands[]; 59 #endif 60 61 static char comm[MAXPATHLEN], *class_name = NULL, *gclass_name = NULL; 62 static uint32_t *version = NULL; 63 static int verbose = 0; 64 static struct g_command *class_commands = NULL; 65 66 #define GEOM_CLASS_CMDS 0x01 67 #define GEOM_STD_CMDS 0x02 68 static struct g_command *find_command(const char *cmdstr, int flags); 69 static int std_available(const char *name); 70 71 static void std_help(struct gctl_req *req, unsigned flags); 72 static void std_list(struct gctl_req *req, unsigned flags); 73 static void std_status(struct gctl_req *req, unsigned flags); 74 static void std_load(struct gctl_req *req, unsigned flags); 75 static void std_unload(struct gctl_req *req, unsigned flags); 76 77 static struct g_command std_commands[] = { 78 { "help", 0, std_help, G_NULL_OPTS, NULL }, 79 { "list", 0, std_list, 80 { 81 { 'a', "all", NULL, G_TYPE_BOOL }, 82 G_OPT_SENTINEL 83 }, 84 "[-a] [name ...]" 85 }, 86 { "status", 0, std_status, 87 { 88 { 'a', "all", NULL, G_TYPE_BOOL }, 89 { 'g', "geoms", NULL, G_TYPE_BOOL }, 90 { 's', "script", NULL, G_TYPE_BOOL }, 91 G_OPT_SENTINEL 92 }, 93 "[-ags] [name ...]" 94 }, 95 { "load", G_FLAG_VERBOSE | G_FLAG_LOADKLD, std_load, G_NULL_OPTS, 96 NULL }, 97 { "unload", G_FLAG_VERBOSE, std_unload, G_NULL_OPTS, NULL }, 98 G_CMD_SENTINEL 99 }; 100 101 static void 102 usage_command(struct g_command *cmd, const char *prefix) 103 { 104 struct g_option *opt; 105 unsigned i; 106 107 if (cmd->gc_usage != NULL) { 108 char *pos, *ptr, *sptr; 109 110 sptr = ptr = strdup(cmd->gc_usage); 111 while ((pos = strsep(&ptr, "\n")) != NULL) { 112 if (*pos == '\0') 113 continue; 114 fprintf(stderr, "%s %s %s %s\n", prefix, comm, 115 cmd->gc_name, pos); 116 } 117 free(sptr); 118 return; 119 } 120 121 fprintf(stderr, "%s %s %s", prefix, comm, cmd->gc_name); 122 if ((cmd->gc_flags & G_FLAG_VERBOSE) != 0) 123 fprintf(stderr, " [-v]"); 124 for (i = 0; ; i++) { 125 opt = &cmd->gc_options[i]; 126 if (opt->go_name == NULL) 127 break; 128 if (opt->go_val != NULL || G_OPT_TYPE(opt) == G_TYPE_BOOL) 129 fprintf(stderr, " ["); 130 else 131 fprintf(stderr, " "); 132 fprintf(stderr, "-%c", opt->go_char); 133 if (G_OPT_TYPE(opt) != G_TYPE_BOOL) 134 fprintf(stderr, " %s", opt->go_name); 135 if (opt->go_val != NULL || G_OPT_TYPE(opt) == G_TYPE_BOOL) 136 fprintf(stderr, "]"); 137 } 138 fprintf(stderr, "\n"); 139 } 140 141 static void 142 usage(void) 143 { 144 145 if (class_name == NULL) { 146 errx(EXIT_FAILURE, "usage: %s <class> <command> [options]", 147 "geom"); 148 } else { 149 struct g_command *cmd; 150 const char *prefix; 151 unsigned i; 152 153 prefix = "usage:"; 154 if (class_commands != NULL) { 155 for (i = 0; ; i++) { 156 cmd = &class_commands[i]; 157 if (cmd->gc_name == NULL) 158 break; 159 usage_command(cmd, prefix); 160 prefix = " "; 161 } 162 } 163 for (i = 0; ; i++) { 164 cmd = &std_commands[i]; 165 if (cmd->gc_name == NULL) 166 break; 167 /* 168 * If class defines command, which has the same name as 169 * standard command, skip it, because it was already 170 * shown on usage(). 171 */ 172 if (find_command(cmd->gc_name, GEOM_CLASS_CMDS) != NULL) 173 continue; 174 usage_command(cmd, prefix); 175 prefix = " "; 176 } 177 exit(EXIT_FAILURE); 178 } 179 } 180 181 static void 182 load_module(void) 183 { 184 char name1[64], name2[64]; 185 186 snprintf(name1, sizeof(name1), "g_%s", class_name); 187 snprintf(name2, sizeof(name2), "geom_%s", class_name); 188 if (modfind(name1) < 0) { 189 /* Not present in kernel, try loading it. */ 190 if (kldload(name2) < 0 || modfind(name1) < 0) { 191 if (errno != EEXIST) { 192 errx(EXIT_FAILURE, 193 "%s module not available!", name2); 194 } 195 } 196 } 197 } 198 199 static int 200 strlcatf(char *str, size_t size, const char *format, ...) 201 { 202 size_t len; 203 va_list ap; 204 int ret; 205 206 len = strlen(str); 207 str += len; 208 size -= len; 209 210 va_start(ap, format); 211 ret = vsnprintf(str, size, format, ap); 212 va_end(ap); 213 214 return (ret); 215 } 216 217 /* 218 * Find given option in options available for given command. 219 */ 220 static struct g_option * 221 find_option(struct g_command *cmd, char ch) 222 { 223 struct g_option *opt; 224 unsigned i; 225 226 for (i = 0; ; i++) { 227 opt = &cmd->gc_options[i]; 228 if (opt->go_name == NULL) 229 return (NULL); 230 if (opt->go_char == ch) 231 return (opt); 232 } 233 /* NOTREACHED */ 234 return (NULL); 235 } 236 237 /* 238 * Add given option to gctl_req. 239 */ 240 static void 241 set_option(struct gctl_req *req, struct g_option *opt, const char *val) 242 { 243 const char *optname; 244 uint64_t number; 245 void *ptr; 246 247 if (G_OPT_ISMULTI(opt)) { 248 size_t optnamesize; 249 250 if (G_OPT_NUM(opt) == UCHAR_MAX) 251 errx(EXIT_FAILURE, "Too many -%c options.", opt->go_char); 252 253 /* 254 * Base option name length plus 3 bytes for option number 255 * (max. 255 options) plus 1 byte for terminating '\0'. 256 */ 257 optnamesize = strlen(opt->go_name) + 3 + 1; 258 ptr = malloc(optnamesize); 259 if (ptr == NULL) 260 errx(EXIT_FAILURE, "No memory."); 261 snprintf(ptr, optnamesize, "%s%u", opt->go_name, G_OPT_NUM(opt)); 262 G_OPT_NUMINC(opt); 263 optname = ptr; 264 } else { 265 optname = opt->go_name; 266 } 267 268 if (G_OPT_TYPE(opt) == G_TYPE_NUMBER) { 269 if (expand_number(val, &number) == -1) { 270 err(EXIT_FAILURE, "Invalid value for '%c' argument", 271 opt->go_char); 272 } 273 ptr = malloc(sizeof(intmax_t)); 274 if (ptr == NULL) 275 errx(EXIT_FAILURE, "No memory."); 276 *(intmax_t *)ptr = number; 277 opt->go_val = ptr; 278 gctl_ro_param(req, optname, sizeof(intmax_t), opt->go_val); 279 } else if (G_OPT_TYPE(opt) == G_TYPE_STRING) { 280 gctl_ro_param(req, optname, -1, val); 281 } else if (G_OPT_TYPE(opt) == G_TYPE_BOOL) { 282 ptr = malloc(sizeof(int)); 283 if (ptr == NULL) 284 errx(EXIT_FAILURE, "No memory."); 285 *(int *)ptr = *val - '0'; 286 opt->go_val = ptr; 287 gctl_ro_param(req, optname, sizeof(int), opt->go_val); 288 } else { 289 assert(!"Invalid type"); 290 } 291 292 if (G_OPT_ISMULTI(opt)) 293 free(__DECONST(char *, optname)); 294 } 295 296 /* 297 * 1. Add given argument by caller. 298 * 2. Add default values of not given arguments. 299 * 3. Add the rest of arguments. 300 */ 301 static void 302 parse_arguments(struct g_command *cmd, struct gctl_req *req, int *argc, 303 char ***argv) 304 { 305 struct g_option *opt; 306 char opts[64]; 307 unsigned i; 308 int ch; 309 310 *opts = '\0'; 311 if ((cmd->gc_flags & G_FLAG_VERBOSE) != 0) 312 strlcat(opts, "v", sizeof(opts)); 313 for (i = 0; ; i++) { 314 opt = &cmd->gc_options[i]; 315 if (opt->go_name == NULL) 316 break; 317 assert(G_OPT_TYPE(opt) != 0); 318 assert((opt->go_type & ~(G_TYPE_MASK | G_TYPE_MULTI)) == 0); 319 /* Multiple bool arguments makes no sense. */ 320 assert(G_OPT_TYPE(opt) != G_TYPE_BOOL || 321 (opt->go_type & G_TYPE_MULTI) == 0); 322 strlcatf(opts, sizeof(opts), "%c", opt->go_char); 323 if (G_OPT_TYPE(opt) != G_TYPE_BOOL) 324 strlcat(opts, ":", sizeof(opts)); 325 } 326 327 /* 328 * Add specified arguments. 329 */ 330 while ((ch = getopt(*argc, *argv, opts)) != -1) { 331 /* Standard (not passed to kernel) options. */ 332 switch (ch) { 333 case 'v': 334 verbose = 1; 335 continue; 336 } 337 /* Options passed to kernel. */ 338 opt = find_option(cmd, ch); 339 if (opt == NULL) 340 usage(); 341 if (!G_OPT_ISMULTI(opt) && G_OPT_ISDONE(opt)) { 342 warnx("Option '%c' specified twice.", opt->go_char); 343 usage(); 344 } 345 G_OPT_DONE(opt); 346 347 if (G_OPT_TYPE(opt) == G_TYPE_BOOL) 348 set_option(req, opt, "1"); 349 else 350 set_option(req, opt, optarg); 351 } 352 *argc -= optind; 353 *argv += optind; 354 355 /* 356 * Add not specified arguments, but with default values. 357 */ 358 for (i = 0; ; i++) { 359 opt = &cmd->gc_options[i]; 360 if (opt->go_name == NULL) 361 break; 362 if (G_OPT_ISDONE(opt)) 363 continue; 364 365 if (G_OPT_TYPE(opt) == G_TYPE_BOOL) { 366 assert(opt->go_val == NULL); 367 set_option(req, opt, "0"); 368 } else { 369 if (opt->go_val == NULL) { 370 warnx("Option '%c' not specified.", 371 opt->go_char); 372 usage(); 373 } else if (opt->go_val == G_VAL_OPTIONAL) { 374 /* add nothing. */ 375 } else { 376 set_option(req, opt, opt->go_val); 377 } 378 } 379 } 380 381 /* 382 * Add rest of given arguments. 383 */ 384 gctl_ro_param(req, "nargs", sizeof(int), argc); 385 for (i = 0; i < (unsigned)*argc; i++) { 386 char argname[16]; 387 388 snprintf(argname, sizeof(argname), "arg%u", i); 389 gctl_ro_param(req, argname, -1, (*argv)[i]); 390 } 391 } 392 393 /* 394 * Find given command in commands available for given class. 395 */ 396 static struct g_command * 397 find_command(const char *cmdstr, int flags) 398 { 399 struct g_command *cmd; 400 unsigned i; 401 402 /* 403 * First try to find command defined by loaded library. 404 */ 405 if ((flags & GEOM_CLASS_CMDS) != 0 && class_commands != NULL) { 406 for (i = 0; ; i++) { 407 cmd = &class_commands[i]; 408 if (cmd->gc_name == NULL) 409 break; 410 if (strcmp(cmd->gc_name, cmdstr) == 0) 411 return (cmd); 412 } 413 } 414 /* 415 * Now try to find in standard commands. 416 */ 417 if ((flags & GEOM_STD_CMDS) != 0) { 418 for (i = 0; ; i++) { 419 cmd = &std_commands[i]; 420 if (cmd->gc_name == NULL) 421 break; 422 if (strcmp(cmd->gc_name, cmdstr) == 0) 423 return (cmd); 424 } 425 } 426 return (NULL); 427 } 428 429 static unsigned 430 set_flags(struct g_command *cmd) 431 { 432 unsigned flags = 0; 433 434 if ((cmd->gc_flags & G_FLAG_VERBOSE) != 0 && verbose) 435 flags |= G_FLAG_VERBOSE; 436 437 return (flags); 438 } 439 440 /* 441 * Run command. 442 */ 443 static void 444 run_command(int argc, char *argv[]) 445 { 446 struct g_command *cmd; 447 struct gctl_req *req; 448 const char *errstr; 449 char buf[4096]; 450 451 /* First try to find a command defined by a class. */ 452 cmd = find_command(argv[0], GEOM_CLASS_CMDS); 453 if (cmd == NULL) { 454 /* Now, try to find a standard command. */ 455 cmd = find_command(argv[0], GEOM_STD_CMDS); 456 if (cmd == NULL) { 457 warnx("Unknown command: %s.", argv[0]); 458 usage(); 459 } 460 if (!std_available(cmd->gc_name)) { 461 warnx("Command '%s' not available.", argv[0]); 462 exit(EXIT_FAILURE); 463 } 464 } 465 if ((cmd->gc_flags & G_FLAG_LOADKLD) != 0) 466 load_module(); 467 468 req = gctl_get_handle(); 469 gctl_ro_param(req, "class", -1, gclass_name); 470 gctl_ro_param(req, "verb", -1, argv[0]); 471 if (version != NULL) 472 gctl_ro_param(req, "version", sizeof(*version), version); 473 parse_arguments(cmd, req, &argc, &argv); 474 475 bzero(buf, sizeof(buf)); 476 if (cmd->gc_func != NULL) { 477 unsigned flags; 478 479 flags = set_flags(cmd); 480 cmd->gc_func(req, flags); 481 errstr = req->error; 482 } else { 483 gctl_rw_param(req, "output", sizeof(buf), buf); 484 errstr = gctl_issue(req); 485 } 486 if (errstr != NULL && errstr[0] != '\0') { 487 warnx("%s", errstr); 488 if (strncmp(errstr, "warning: ", strlen("warning: ")) != 0) { 489 gctl_free(req); 490 exit(EXIT_FAILURE); 491 } 492 } 493 if (buf[0] != '\0') 494 printf("%s", buf); 495 gctl_free(req); 496 if (verbose) 497 printf("Done.\n"); 498 exit(EXIT_SUCCESS); 499 } 500 501 #ifndef STATIC_GEOM_CLASSES 502 static const char * 503 library_path(void) 504 { 505 const char *path; 506 507 path = getenv("GEOM_LIBRARY_PATH"); 508 if (path == NULL) 509 path = GEOM_CLASS_DIR; 510 return (path); 511 } 512 513 static void 514 load_library(void) 515 { 516 char *curpath, path[MAXPATHLEN], *tofree, *totalpath; 517 uint32_t *lib_version; 518 void *dlh; 519 int ret; 520 521 ret = 0; 522 tofree = totalpath = strdup(library_path()); 523 if (totalpath == NULL) 524 err(EXIT_FAILURE, "Not enough memory for library path"); 525 526 if (strchr(totalpath, ':') != NULL) 527 curpath = strsep(&totalpath, ":"); 528 else 529 curpath = totalpath; 530 /* Traverse the paths to find one that contains the library we want. */ 531 while (curpath != NULL) { 532 snprintf(path, sizeof(path), "%s/geom_%s.so", curpath, 533 class_name); 534 ret = access(path, F_OK); 535 if (ret == -1) { 536 if (errno == ENOENT) { 537 /* 538 * If we cannot find library, try the next 539 * path. 540 */ 541 curpath = strsep(&totalpath, ":"); 542 continue; 543 } 544 err(EXIT_FAILURE, "Cannot access library"); 545 } 546 break; 547 } 548 free(tofree); 549 /* No library was found, but standard commands can still be used */ 550 if (ret == -1) 551 return; 552 dlh = dlopen(path, RTLD_NOW); 553 if (dlh == NULL) 554 errx(EXIT_FAILURE, "Cannot open library: %s.", dlerror()); 555 lib_version = dlsym(dlh, "lib_version"); 556 if (lib_version == NULL) { 557 warnx("Cannot find symbol %s: %s.", "lib_version", dlerror()); 558 dlclose(dlh); 559 exit(EXIT_FAILURE); 560 } 561 if (*lib_version != G_LIB_VERSION) { 562 dlclose(dlh); 563 errx(EXIT_FAILURE, "%s and %s are not synchronized.", 564 getprogname(), path); 565 } 566 version = dlsym(dlh, "version"); 567 if (version == NULL) { 568 warnx("Cannot find symbol %s: %s.", "version", dlerror()); 569 dlclose(dlh); 570 exit(EXIT_FAILURE); 571 } 572 class_commands = dlsym(dlh, "class_commands"); 573 if (class_commands == NULL) { 574 warnx("Cannot find symbol %s: %s.", "class_commands", 575 dlerror()); 576 dlclose(dlh); 577 exit(EXIT_FAILURE); 578 } 579 } 580 #endif /* !STATIC_GEOM_CLASSES */ 581 582 /* 583 * Class name should be all capital letters. 584 */ 585 static void 586 set_class_name(void) 587 { 588 char *s1, *s2; 589 590 s1 = class_name; 591 for (; *s1 != '\0'; s1++) 592 *s1 = tolower(*s1); 593 gclass_name = malloc(strlen(class_name) + 1); 594 if (gclass_name == NULL) 595 errx(EXIT_FAILURE, "No memory"); 596 s1 = gclass_name; 597 s2 = class_name; 598 for (; *s2 != '\0'; s2++) 599 *s1++ = toupper(*s2); 600 *s1 = '\0'; 601 } 602 603 static void 604 get_class(int *argc, char ***argv) 605 { 606 607 snprintf(comm, sizeof(comm), "%s", basename((*argv)[0])); 608 if (strcmp(comm, "geom") == 0) { 609 if (*argc < 2) 610 usage(); 611 else if (*argc == 2) { 612 if (strcmp((*argv)[1], "-h") == 0 || 613 strcmp((*argv)[1], "help") == 0) { 614 usage(); 615 } 616 } 617 strlcatf(comm, sizeof(comm), " %s", (*argv)[1]); 618 class_name = (*argv)[1]; 619 *argc -= 2; 620 *argv += 2; 621 } else if (*comm == 'g') { 622 class_name = comm + 1; 623 *argc -= 1; 624 *argv += 1; 625 } else { 626 errx(EXIT_FAILURE, "Invalid utility name."); 627 } 628 629 #ifndef STATIC_GEOM_CLASSES 630 load_library(); 631 #else 632 if (!strcasecmp(class_name, "part")) { 633 version = &gpart_version; 634 class_commands = gpart_class_commands; 635 } else if (!strcasecmp(class_name, "label")) { 636 version = &glabel_version; 637 class_commands = glabel_class_commands; 638 } 639 #endif /* !STATIC_GEOM_CLASSES */ 640 641 set_class_name(); 642 643 /* If we can't load or list, it's not a class. */ 644 if (!std_available("load") && !std_available("list")) 645 errx(EXIT_FAILURE, "Invalid class name."); 646 647 if (*argc < 1) 648 usage(); 649 } 650 651 int 652 main(int argc, char *argv[]) 653 { 654 655 get_class(&argc, &argv); 656 run_command(argc, argv); 657 /* NOTREACHED */ 658 659 exit(EXIT_FAILURE); 660 } 661 662 static struct gclass * 663 find_class(struct gmesh *mesh, const char *name) 664 { 665 struct gclass *classp; 666 667 LIST_FOREACH(classp, &mesh->lg_class, lg_class) { 668 if (strcmp(classp->lg_name, name) == 0) 669 return (classp); 670 } 671 return (NULL); 672 } 673 674 static struct ggeom * 675 find_geom(struct gclass *classp, const char *name) 676 { 677 struct ggeom *gp; 678 679 LIST_FOREACH(gp, &classp->lg_geom, lg_geom) { 680 if (strcmp(gp->lg_name, name) == 0) 681 return (gp); 682 } 683 return (NULL); 684 } 685 686 static void 687 list_one_provider(struct gprovider *pp, const char *prefix) 688 { 689 struct gconfig *conf; 690 char buf[5]; 691 692 printf("Name: %s\n", pp->lg_name); 693 humanize_number(buf, sizeof(buf), (int64_t)pp->lg_mediasize, "", 694 HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL); 695 printf("%sMediasize: %jd (%s)\n", prefix, (intmax_t)pp->lg_mediasize, 696 buf); 697 printf("%sSectorsize: %u\n", prefix, pp->lg_sectorsize); 698 if (pp->lg_stripesize > 0 || pp->lg_stripeoffset > 0) { 699 printf("%sStripesize: %ju\n", prefix, pp->lg_stripesize); 700 printf("%sStripeoffset: %ju\n", prefix, pp->lg_stripeoffset); 701 } 702 printf("%sMode: %s\n", prefix, pp->lg_mode); 703 LIST_FOREACH(conf, &pp->lg_config, lg_config) { 704 printf("%s%s: %s\n", prefix, conf->lg_name, conf->lg_val); 705 } 706 } 707 708 static void 709 list_one_consumer(struct gconsumer *cp, const char *prefix) 710 { 711 struct gprovider *pp; 712 struct gconfig *conf; 713 714 pp = cp->lg_provider; 715 if (pp == NULL) 716 printf("[no provider]\n"); 717 else { 718 char buf[5]; 719 720 printf("Name: %s\n", pp->lg_name); 721 humanize_number(buf, sizeof(buf), (int64_t)pp->lg_mediasize, "", 722 HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL); 723 printf("%sMediasize: %jd (%s)\n", prefix, 724 (intmax_t)pp->lg_mediasize, buf); 725 printf("%sSectorsize: %u\n", prefix, pp->lg_sectorsize); 726 if (pp->lg_stripesize > 0 || pp->lg_stripeoffset > 0) { 727 printf("%sStripesize: %ju\n", prefix, pp->lg_stripesize); 728 printf("%sStripeoffset: %ju\n", prefix, pp->lg_stripeoffset); 729 } 730 printf("%sMode: %s\n", prefix, cp->lg_mode); 731 } 732 LIST_FOREACH(conf, &cp->lg_config, lg_config) { 733 printf("%s%s: %s\n", prefix, conf->lg_name, conf->lg_val); 734 } 735 } 736 737 static void 738 list_one_geom(struct ggeom *gp) 739 { 740 struct gprovider *pp; 741 struct gconsumer *cp; 742 struct gconfig *conf; 743 unsigned n; 744 745 printf("Geom name: %s\n", gp->lg_name); 746 LIST_FOREACH(conf, &gp->lg_config, lg_config) { 747 printf("%s: %s\n", conf->lg_name, conf->lg_val); 748 } 749 if (!LIST_EMPTY(&gp->lg_provider)) { 750 printf("Providers:\n"); 751 n = 1; 752 LIST_FOREACH(pp, &gp->lg_provider, lg_provider) { 753 printf("%u. ", n++); 754 list_one_provider(pp, " "); 755 } 756 } 757 if (!LIST_EMPTY(&gp->lg_consumer)) { 758 printf("Consumers:\n"); 759 n = 1; 760 LIST_FOREACH(cp, &gp->lg_consumer, lg_consumer) { 761 printf("%u. ", n++); 762 list_one_consumer(cp, " "); 763 } 764 } 765 printf("\n"); 766 } 767 768 static void 769 std_help(struct gctl_req *req __unused, unsigned flags __unused) 770 { 771 772 usage(); 773 } 774 775 static int 776 std_list_available(void) 777 { 778 struct gmesh mesh; 779 struct gclass *classp; 780 int error; 781 782 error = geom_gettree(&mesh); 783 if (error != 0) 784 errc(EXIT_FAILURE, error, "Cannot get GEOM tree"); 785 classp = find_class(&mesh, gclass_name); 786 geom_deletetree(&mesh); 787 if (classp != NULL) 788 return (1); 789 return (0); 790 } 791 792 static void 793 std_list(struct gctl_req *req, unsigned flags __unused) 794 { 795 struct gmesh mesh; 796 struct gclass *classp; 797 struct ggeom *gp; 798 const char *name; 799 int all, error, i, nargs; 800 801 error = geom_gettree(&mesh); 802 if (error != 0) 803 errc(EXIT_FAILURE, error, "Cannot get GEOM tree"); 804 classp = find_class(&mesh, gclass_name); 805 if (classp == NULL) { 806 geom_deletetree(&mesh); 807 errx(EXIT_FAILURE, "Class %s not found.", gclass_name); 808 } 809 nargs = gctl_get_int(req, "nargs"); 810 all = gctl_get_int(req, "all"); 811 if (nargs > 0) { 812 for (i = 0; i < nargs; i++) { 813 name = gctl_get_ascii(req, "arg%d", i); 814 gp = find_geom(classp, name); 815 if (gp == NULL) 816 errx(EXIT_FAILURE, "No such geom: %s.", name); 817 list_one_geom(gp); 818 } 819 } else { 820 LIST_FOREACH(gp, &classp->lg_geom, lg_geom) { 821 if (LIST_EMPTY(&gp->lg_provider) && !all) 822 continue; 823 list_one_geom(gp); 824 } 825 } 826 geom_deletetree(&mesh); 827 } 828 829 static int 830 std_status_available(void) 831 { 832 833 /* 'status' command is available when 'list' command is. */ 834 return (std_list_available()); 835 } 836 837 static void 838 status_update_len(struct ggeom *gp, int *name_len, int *status_len) 839 { 840 struct gconfig *conf; 841 int len; 842 843 assert(gp != NULL); 844 assert(name_len != NULL); 845 assert(status_len != NULL); 846 847 len = strlen(gp->lg_name); 848 if (*name_len < len) 849 *name_len = len; 850 LIST_FOREACH(conf, &gp->lg_config, lg_config) { 851 if (strcasecmp(conf->lg_name, "state") == 0) { 852 len = strlen(conf->lg_val); 853 if (*status_len < len) 854 *status_len = len; 855 } 856 } 857 } 858 859 static void 860 status_update_len_prs(struct ggeom *gp, int *name_len, int *status_len) 861 { 862 struct gprovider *pp; 863 struct gconfig *conf; 864 int len, glen; 865 866 assert(gp != NULL); 867 assert(name_len != NULL); 868 assert(status_len != NULL); 869 870 glen = 0; 871 LIST_FOREACH(conf, &gp->lg_config, lg_config) { 872 if (strcasecmp(conf->lg_name, "state") == 0) { 873 glen = strlen(conf->lg_val); 874 break; 875 } 876 } 877 LIST_FOREACH(pp, &gp->lg_provider, lg_provider) { 878 len = strlen(pp->lg_name); 879 if (*name_len < len) 880 *name_len = len; 881 len = glen; 882 LIST_FOREACH(conf, &pp->lg_config, lg_config) { 883 if (strcasecmp(conf->lg_name, "state") == 0) { 884 len = strlen(conf->lg_val); 885 break; 886 } 887 } 888 if (*status_len < len) 889 *status_len = len; 890 } 891 } 892 893 static char * 894 status_one_consumer(struct gconsumer *cp) 895 { 896 static char buf[256]; 897 struct gprovider *pp; 898 struct gconfig *conf; 899 const char *state, *syncr; 900 901 pp = cp->lg_provider; 902 if (pp == NULL) 903 return (NULL); 904 state = NULL; 905 syncr = NULL; 906 LIST_FOREACH(conf, &cp->lg_config, lg_config) { 907 if (strcasecmp(conf->lg_name, "state") == 0) 908 state = conf->lg_val; 909 if (strcasecmp(conf->lg_name, "synchronized") == 0) 910 syncr = conf->lg_val; 911 } 912 if (state == NULL && syncr == NULL) 913 snprintf(buf, sizeof(buf), "%s", pp->lg_name); 914 else if (state != NULL && syncr != NULL) { 915 snprintf(buf, sizeof(buf), "%s (%s, %s)", pp->lg_name, 916 state, syncr); 917 } else { 918 snprintf(buf, sizeof(buf), "%s (%s)", pp->lg_name, 919 state ? state : syncr); 920 } 921 return (buf); 922 } 923 924 static void 925 status_one_geom(struct ggeom *gp, int script, int name_len, int status_len) 926 { 927 struct gconsumer *cp; 928 struct gconfig *conf; 929 const char *name, *status, *component; 930 int gotone; 931 932 name = gp->lg_name; 933 status = "N/A"; 934 LIST_FOREACH(conf, &gp->lg_config, lg_config) { 935 if (strcasecmp(conf->lg_name, "state") == 0) { 936 status = conf->lg_val; 937 break; 938 } 939 } 940 gotone = 0; 941 LIST_FOREACH(cp, &gp->lg_consumer, lg_consumer) { 942 component = status_one_consumer(cp); 943 if (component == NULL) 944 continue; 945 gotone = 1; 946 printf("%*s %*s %s\n", name_len, name, status_len, status, 947 component); 948 if (!script) 949 name = status = ""; 950 } 951 if (!gotone) { 952 printf("%*s %*s %s\n", name_len, name, status_len, status, 953 "N/A"); 954 } 955 } 956 957 static void 958 status_one_geom_prs(struct ggeom *gp, int script, int name_len, int status_len) 959 { 960 struct gprovider *pp; 961 struct gconsumer *cp; 962 struct gconfig *conf; 963 const char *name, *status, *component; 964 int gotone; 965 966 LIST_FOREACH(pp, &gp->lg_provider, lg_provider) { 967 name = pp->lg_name; 968 status = "N/A"; 969 LIST_FOREACH(conf, &gp->lg_config, lg_config) { 970 if (strcasecmp(conf->lg_name, "state") == 0) { 971 status = conf->lg_val; 972 break; 973 } 974 } 975 LIST_FOREACH(conf, &pp->lg_config, lg_config) { 976 if (strcasecmp(conf->lg_name, "state") == 0) { 977 status = conf->lg_val; 978 break; 979 } 980 } 981 gotone = 0; 982 LIST_FOREACH(cp, &gp->lg_consumer, lg_consumer) { 983 component = status_one_consumer(cp); 984 if (component == NULL) 985 continue; 986 gotone = 1; 987 printf("%*s %*s %s\n", name_len, name, 988 status_len, status, component); 989 if (!script) 990 name = status = ""; 991 } 992 if (!gotone) { 993 printf("%*s %*s %s\n", name_len, name, 994 status_len, status, "N/A"); 995 } 996 } 997 } 998 999 static void 1000 std_status(struct gctl_req *req, unsigned flags __unused) 1001 { 1002 struct gmesh mesh; 1003 struct gclass *classp; 1004 struct ggeom *gp; 1005 const char *name; 1006 int name_len, status_len; 1007 int all, error, geoms, i, n, nargs, script; 1008 1009 error = geom_gettree(&mesh); 1010 if (error != 0) 1011 errc(EXIT_FAILURE, error, "Cannot get GEOM tree"); 1012 classp = find_class(&mesh, gclass_name); 1013 if (classp == NULL) 1014 errx(EXIT_FAILURE, "Class %s not found.", gclass_name); 1015 nargs = gctl_get_int(req, "nargs"); 1016 all = gctl_get_int(req, "all"); 1017 geoms = gctl_get_int(req, "geoms"); 1018 script = gctl_get_int(req, "script"); 1019 if (script) { 1020 name_len = 0; 1021 status_len = 0; 1022 } else { 1023 name_len = strlen("Name"); 1024 status_len = strlen("Status"); 1025 } 1026 if (nargs > 0) { 1027 for (i = 0, n = 0; i < nargs; i++) { 1028 name = gctl_get_ascii(req, "arg%d", i); 1029 gp = find_geom(classp, name); 1030 if (gp == NULL) 1031 errx(EXIT_FAILURE, "No such geom: %s.", name); 1032 if (geoms) { 1033 status_update_len(gp, 1034 &name_len, &status_len); 1035 } else { 1036 status_update_len_prs(gp, 1037 &name_len, &status_len); 1038 } 1039 n++; 1040 } 1041 if (n == 0) 1042 goto end; 1043 } else { 1044 n = 0; 1045 LIST_FOREACH(gp, &classp->lg_geom, lg_geom) { 1046 if (LIST_EMPTY(&gp->lg_provider) && !all) 1047 continue; 1048 if (geoms) { 1049 status_update_len(gp, 1050 &name_len, &status_len); 1051 } else { 1052 status_update_len_prs(gp, 1053 &name_len, &status_len); 1054 } 1055 n++; 1056 } 1057 if (n == 0) 1058 goto end; 1059 } 1060 if (!script) { 1061 printf("%*s %*s %s\n", name_len, "Name", status_len, "Status", 1062 "Components"); 1063 } 1064 if (nargs > 0) { 1065 for (i = 0; i < nargs; i++) { 1066 name = gctl_get_ascii(req, "arg%d", i); 1067 gp = find_geom(classp, name); 1068 if (gp == NULL) 1069 continue; 1070 if (geoms) { 1071 status_one_geom(gp, script, name_len, 1072 status_len); 1073 } else { 1074 status_one_geom_prs(gp, script, name_len, 1075 status_len); 1076 } 1077 } 1078 } else { 1079 LIST_FOREACH(gp, &classp->lg_geom, lg_geom) { 1080 if (LIST_EMPTY(&gp->lg_provider) && !all) 1081 continue; 1082 if (geoms) { 1083 status_one_geom(gp, script, name_len, 1084 status_len); 1085 } else { 1086 status_one_geom_prs(gp, script, name_len, 1087 status_len); 1088 } 1089 } 1090 } 1091 end: 1092 geom_deletetree(&mesh); 1093 } 1094 1095 static int 1096 std_load_available(void) 1097 { 1098 char name[MAXPATHLEN], paths[MAXPATHLEN * 8], *p; 1099 struct stat sb; 1100 size_t len; 1101 1102 snprintf(name, sizeof(name), "g_%s", class_name); 1103 /* 1104 * If already in kernel, "load" command is not available. 1105 */ 1106 if (modfind(name) >= 0) 1107 return (0); 1108 bzero(paths, sizeof(paths)); 1109 len = sizeof(paths); 1110 if (sysctlbyname("kern.module_path", paths, &len, NULL, 0) < 0) 1111 err(EXIT_FAILURE, "sysctl(kern.module_path)"); 1112 for (p = strtok(paths, ";"); p != NULL; p = strtok(NULL, ";")) { 1113 snprintf(name, sizeof(name), "%s/geom_%s.ko", p, class_name); 1114 /* 1115 * If geom_<name>.ko file exists, "load" command is available. 1116 */ 1117 if (stat(name, &sb) == 0) 1118 return (1); 1119 } 1120 return (0); 1121 } 1122 1123 static void 1124 std_load(struct gctl_req *req __unused, unsigned flags) 1125 { 1126 1127 /* 1128 * Do nothing special here, because of G_FLAG_LOADKLD flag, 1129 * module is already loaded. 1130 */ 1131 if ((flags & G_FLAG_VERBOSE) != 0) 1132 printf("Module available.\n"); 1133 } 1134 1135 static int 1136 std_unload_available(void) 1137 { 1138 char name[64]; 1139 int id; 1140 1141 snprintf(name, sizeof(name), "geom_%s", class_name); 1142 id = kldfind(name); 1143 if (id >= 0) 1144 return (1); 1145 return (0); 1146 } 1147 1148 static void 1149 std_unload(struct gctl_req *req, unsigned flags __unused) 1150 { 1151 char name[64]; 1152 int id; 1153 1154 snprintf(name, sizeof(name), "geom_%s", class_name); 1155 id = kldfind(name); 1156 if (id < 0) { 1157 gctl_error(req, "Could not find module: %s.", strerror(errno)); 1158 return; 1159 } 1160 if (kldunload(id) < 0) { 1161 gctl_error(req, "Could not unload module: %s.", 1162 strerror(errno)); 1163 return; 1164 } 1165 } 1166 1167 static int 1168 std_available(const char *name) 1169 { 1170 1171 if (strcmp(name, "help") == 0) 1172 return (1); 1173 else if (strcmp(name, "list") == 0) 1174 return (std_list_available()); 1175 else if (strcmp(name, "status") == 0) 1176 return (std_status_available()); 1177 else if (strcmp(name, "load") == 0) 1178 return (std_load_available()); 1179 else if (strcmp(name, "unload") == 0) 1180 return (std_unload_available()); 1181 else 1182 assert(!"Unknown standard command."); 1183 return (0); 1184 } 1185