1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2004-2009 Pawel Jakub Dawidek <pjd@FreeBSD.org> 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/linker.h> 34 #include <sys/module.h> 35 #include <sys/stat.h> 36 #include <sys/sysctl.h> 37 #include <ctype.h> 38 #include <err.h> 39 #include <errno.h> 40 #include <paths.h> 41 #include <stdio.h> 42 #include <stdlib.h> 43 #include <stdarg.h> 44 #include <stdbool.h> 45 #include <stdint.h> 46 #include <string.h> 47 #include <unistd.h> 48 #include <libgen.h> 49 #include <libutil.h> 50 #include <inttypes.h> 51 #include <dlfcn.h> 52 #include <assert.h> 53 #include <libgeom.h> 54 #include <geom.h> 55 56 #include "misc/subr.h" 57 58 #ifdef STATIC_GEOM_CLASSES 59 extern uint32_t gpart_version; 60 extern struct g_command gpart_class_commands[]; 61 extern uint32_t glabel_version; 62 extern struct g_command glabel_class_commands[]; 63 #endif 64 65 static char comm[MAXPATHLEN], *class_name = NULL, *gclass_name = NULL; 66 static uint32_t *version = NULL; 67 static int verbose = 0; 68 static struct g_command *class_commands = NULL; 69 70 #define GEOM_CLASS_CMDS 0x01 71 #define GEOM_STD_CMDS 0x02 72 73 #define GEOM_CLASS_WIDTH 10 74 75 static struct g_command *find_command(const char *cmdstr, int flags); 76 static void list_one_geom_by_provider(const char *provider_name); 77 static int std_available(const char *name); 78 79 static void std_help(struct gctl_req *req, unsigned flags); 80 static void std_list(struct gctl_req *req, unsigned flags); 81 static void std_status(struct gctl_req *req, unsigned flags); 82 static void std_load(struct gctl_req *req, unsigned flags); 83 static void std_unload(struct gctl_req *req, unsigned flags); 84 85 static struct g_command std_commands[] = { 86 { "help", 0, std_help, G_NULL_OPTS, NULL }, 87 { "list", 0, std_list, 88 { 89 { 'a', "all", NULL, G_TYPE_BOOL }, 90 G_OPT_SENTINEL 91 }, 92 "[-a] [name ...]" 93 }, 94 { "status", 0, std_status, 95 { 96 { 'a', "all", NULL, G_TYPE_BOOL }, 97 { 'g', "geoms", NULL, G_TYPE_BOOL }, 98 { 's', "script", NULL, G_TYPE_BOOL }, 99 G_OPT_SENTINEL 100 }, 101 "[-ags] [name ...]" 102 }, 103 { "load", G_FLAG_VERBOSE | G_FLAG_LOADKLD, std_load, G_NULL_OPTS, 104 NULL }, 105 { "unload", G_FLAG_VERBOSE, std_unload, G_NULL_OPTS, NULL }, 106 G_CMD_SENTINEL 107 }; 108 109 static void 110 usage_command(struct g_command *cmd, const char *prefix) 111 { 112 struct g_option *opt; 113 unsigned i; 114 115 if (cmd->gc_usage != NULL) { 116 char *pos, *ptr, *sptr; 117 118 sptr = ptr = strdup(cmd->gc_usage); 119 while ((pos = strsep(&ptr, "\n")) != NULL) { 120 if (*pos == '\0') 121 continue; 122 fprintf(stderr, "%s %s %s %s\n", prefix, comm, 123 cmd->gc_name, pos); 124 } 125 free(sptr); 126 return; 127 } 128 129 fprintf(stderr, "%s %s %s", prefix, comm, cmd->gc_name); 130 if ((cmd->gc_flags & G_FLAG_VERBOSE) != 0) 131 fprintf(stderr, " [-v]"); 132 for (i = 0; ; i++) { 133 opt = &cmd->gc_options[i]; 134 if (opt->go_name == NULL) 135 break; 136 if (opt->go_val != NULL || G_OPT_TYPE(opt) == G_TYPE_BOOL) 137 fprintf(stderr, " ["); 138 else 139 fprintf(stderr, " "); 140 fprintf(stderr, "-%c", opt->go_char); 141 if (G_OPT_TYPE(opt) != G_TYPE_BOOL) 142 fprintf(stderr, " %s", opt->go_name); 143 if (opt->go_val != NULL || G_OPT_TYPE(opt) == G_TYPE_BOOL) 144 fprintf(stderr, "]"); 145 } 146 fprintf(stderr, "\n"); 147 } 148 149 static void 150 usage(void) 151 { 152 153 if (class_name == NULL) { 154 fprintf(stderr, "usage: geom <class> <command> [options]\n"); 155 fprintf(stderr, " geom -p <provider-name>\n"); 156 fprintf(stderr, " geom -t\n"); 157 exit(EXIT_FAILURE); 158 } else { 159 struct g_command *cmd; 160 const char *prefix; 161 unsigned i; 162 163 prefix = "usage:"; 164 if (class_commands != NULL) { 165 for (i = 0; ; i++) { 166 cmd = &class_commands[i]; 167 if (cmd->gc_name == NULL) 168 break; 169 usage_command(cmd, prefix); 170 prefix = " "; 171 } 172 } 173 for (i = 0; ; i++) { 174 cmd = &std_commands[i]; 175 if (cmd->gc_name == NULL) 176 break; 177 /* 178 * If class defines command, which has the same name as 179 * standard command, skip it, because it was already 180 * shown on usage(). 181 */ 182 if (find_command(cmd->gc_name, GEOM_CLASS_CMDS) != NULL) 183 continue; 184 usage_command(cmd, prefix); 185 prefix = " "; 186 } 187 exit(EXIT_FAILURE); 188 } 189 } 190 191 static void 192 load_module(void) 193 { 194 char name1[64], name2[64]; 195 196 snprintf(name1, sizeof(name1), "g_%s", class_name); 197 snprintf(name2, sizeof(name2), "geom_%s", class_name); 198 if (modfind(name1) < 0) { 199 /* Not present in kernel, try loading it. */ 200 if (kldload(name2) < 0 || modfind(name1) < 0) { 201 if (errno != EEXIST) { 202 err(EXIT_FAILURE, "cannot load %s", name2); 203 } 204 } 205 } 206 } 207 208 static int 209 strlcatf(char *str, size_t size, const char *format, ...) 210 { 211 size_t len; 212 va_list ap; 213 int ret; 214 215 len = strlen(str); 216 str += len; 217 size -= len; 218 219 va_start(ap, format); 220 ret = vsnprintf(str, size, format, ap); 221 va_end(ap); 222 223 return (ret); 224 } 225 226 /* 227 * Find given option in options available for given command. 228 */ 229 static struct g_option * 230 find_option(struct g_command *cmd, char ch) 231 { 232 struct g_option *opt; 233 unsigned i; 234 235 for (i = 0; ; i++) { 236 opt = &cmd->gc_options[i]; 237 if (opt->go_name == NULL) 238 return (NULL); 239 if (opt->go_char == ch) 240 return (opt); 241 } 242 /* NOTREACHED */ 243 return (NULL); 244 } 245 246 /* 247 * Add given option to gctl_req. 248 */ 249 static void 250 set_option(struct gctl_req *req, struct g_option *opt, const char *val) 251 { 252 const char *optname; 253 uint64_t number; 254 void *ptr; 255 256 if (G_OPT_ISMULTI(opt)) { 257 size_t optnamesize; 258 259 if (G_OPT_NUM(opt) == UCHAR_MAX) 260 errx(EXIT_FAILURE, "Too many -%c options.", opt->go_char); 261 262 /* 263 * Base option name length plus 3 bytes for option number 264 * (max. 255 options) plus 1 byte for terminating '\0'. 265 */ 266 optnamesize = strlen(opt->go_name) + 3 + 1; 267 ptr = malloc(optnamesize); 268 if (ptr == NULL) 269 errx(EXIT_FAILURE, "No memory."); 270 snprintf(ptr, optnamesize, "%s%u", opt->go_name, G_OPT_NUM(opt)); 271 G_OPT_NUMINC(opt); 272 optname = ptr; 273 } else { 274 optname = opt->go_name; 275 } 276 277 if (G_OPT_TYPE(opt) == G_TYPE_NUMBER) { 278 if (expand_number(val, &number) == -1) { 279 err(EXIT_FAILURE, "Invalid value for '%c' argument", 280 opt->go_char); 281 } 282 ptr = malloc(sizeof(intmax_t)); 283 if (ptr == NULL) 284 errx(EXIT_FAILURE, "No memory."); 285 *(intmax_t *)ptr = number; 286 opt->go_val = ptr; 287 gctl_ro_param(req, optname, sizeof(intmax_t), opt->go_val); 288 } else if (G_OPT_TYPE(opt) == G_TYPE_STRING) { 289 gctl_ro_param(req, optname, -1, val); 290 } else if (G_OPT_TYPE(opt) == G_TYPE_BOOL) { 291 ptr = malloc(sizeof(int)); 292 if (ptr == NULL) 293 errx(EXIT_FAILURE, "No memory."); 294 *(int *)ptr = *val - '0'; 295 opt->go_val = ptr; 296 gctl_ro_param(req, optname, sizeof(int), opt->go_val); 297 } else { 298 assert(!"Invalid type"); 299 } 300 301 if (G_OPT_ISMULTI(opt)) 302 free(__DECONST(char *, optname)); 303 } 304 305 /* 306 * 1. Add given argument by caller. 307 * 2. Add default values of not given arguments. 308 * 3. Add the rest of arguments. 309 */ 310 static void 311 parse_arguments(struct g_command *cmd, struct gctl_req *req, int *argc, 312 char ***argv) 313 { 314 struct g_option *opt; 315 char opts[64]; 316 unsigned i; 317 int ch, vcount; 318 319 *opts = '\0'; 320 if ((cmd->gc_flags & G_FLAG_VERBOSE) != 0) 321 strlcat(opts, "v", sizeof(opts)); 322 for (i = 0; ; i++) { 323 opt = &cmd->gc_options[i]; 324 if (opt->go_name == NULL) 325 break; 326 assert(G_OPT_TYPE(opt) != 0); 327 assert((opt->go_type & ~(G_TYPE_MASK | G_TYPE_MULTI)) == 0); 328 /* Multiple bool arguments makes no sense. */ 329 assert(G_OPT_TYPE(opt) != G_TYPE_BOOL || 330 (opt->go_type & G_TYPE_MULTI) == 0); 331 strlcatf(opts, sizeof(opts), "%c", opt->go_char); 332 if (G_OPT_TYPE(opt) != G_TYPE_BOOL) 333 strlcat(opts, ":", sizeof(opts)); 334 } 335 336 /* 337 * Add specified arguments. 338 */ 339 vcount = 0; 340 while ((ch = getopt(*argc, *argv, opts)) != -1) { 341 /* Standard (not passed to kernel) options. */ 342 if (ch == 'v' && (cmd->gc_flags & G_FLAG_VERBOSE) != 0) 343 verbose = 1; 344 /* Options passed to kernel. */ 345 opt = find_option(cmd, ch); 346 if (opt == NULL) { 347 if (ch == 'v' && (cmd->gc_flags & G_FLAG_VERBOSE) != 0){ 348 if (++vcount < 2) 349 continue; 350 else 351 warnx("Option 'v' specified twice."); 352 } 353 usage(); 354 } 355 if (!G_OPT_ISMULTI(opt) && G_OPT_ISDONE(opt)) { 356 warnx("Option '%c' specified twice.", opt->go_char); 357 usage(); 358 } 359 G_OPT_DONE(opt); 360 361 if (G_OPT_TYPE(opt) == G_TYPE_BOOL) 362 set_option(req, opt, "1"); 363 else 364 set_option(req, opt, optarg); 365 } 366 *argc -= optind; 367 *argv += optind; 368 369 /* 370 * Add not specified arguments, but with default values. 371 */ 372 for (i = 0; ; i++) { 373 opt = &cmd->gc_options[i]; 374 if (opt->go_name == NULL) 375 break; 376 if (G_OPT_ISDONE(opt)) 377 continue; 378 379 if (G_OPT_TYPE(opt) == G_TYPE_BOOL) { 380 assert(opt->go_val == NULL); 381 set_option(req, opt, "0"); 382 } else { 383 if (opt->go_val == NULL) { 384 warnx("Option '%c' not specified.", 385 opt->go_char); 386 usage(); 387 } else if (opt->go_val == G_VAL_OPTIONAL) { 388 /* add nothing. */ 389 } else { 390 set_option(req, opt, opt->go_val); 391 } 392 } 393 } 394 395 /* 396 * Add rest of given arguments. 397 */ 398 gctl_ro_param(req, "nargs", sizeof(int), argc); 399 for (i = 0; i < (unsigned)*argc; i++) { 400 char argname[16]; 401 402 snprintf(argname, sizeof(argname), "arg%u", i); 403 gctl_ro_param(req, argname, -1, (*argv)[i]); 404 } 405 } 406 407 /* 408 * Find given command in commands available for given class. 409 */ 410 static struct g_command * 411 find_command(const char *cmdstr, int flags) 412 { 413 struct g_command *cmd; 414 unsigned i; 415 416 /* 417 * First try to find command defined by loaded library. 418 */ 419 if ((flags & GEOM_CLASS_CMDS) != 0 && class_commands != NULL) { 420 for (i = 0; ; i++) { 421 cmd = &class_commands[i]; 422 if (cmd->gc_name == NULL) 423 break; 424 if (strcmp(cmd->gc_name, cmdstr) == 0) 425 return (cmd); 426 } 427 } 428 /* 429 * Now try to find in standard commands. 430 */ 431 if ((flags & GEOM_STD_CMDS) != 0) { 432 for (i = 0; ; i++) { 433 cmd = &std_commands[i]; 434 if (cmd->gc_name == NULL) 435 break; 436 if (strcmp(cmd->gc_name, cmdstr) == 0) 437 return (cmd); 438 } 439 } 440 return (NULL); 441 } 442 443 static unsigned 444 set_flags(struct g_command *cmd) 445 { 446 unsigned flags = 0; 447 448 if ((cmd->gc_flags & G_FLAG_VERBOSE) != 0 && verbose) 449 flags |= G_FLAG_VERBOSE; 450 451 return (flags); 452 } 453 454 /* 455 * Run command. 456 */ 457 static void 458 run_command(int argc, char *argv[]) 459 { 460 struct g_command *cmd; 461 struct gctl_req *req; 462 const char *errstr; 463 char buf[4096]; 464 465 /* First try to find a command defined by a class. */ 466 cmd = find_command(argv[0], GEOM_CLASS_CMDS); 467 if (cmd == NULL) { 468 /* Now, try to find a standard command. */ 469 cmd = find_command(argv[0], GEOM_STD_CMDS); 470 if (cmd == NULL) { 471 warnx("Unknown command: %s.", argv[0]); 472 usage(); 473 } 474 if (!std_available(cmd->gc_name)) { 475 warnx("Command '%s' not available; " 476 "try 'load' first.", argv[0]); 477 exit(EXIT_FAILURE); 478 } 479 } 480 if ((cmd->gc_flags & G_FLAG_LOADKLD) != 0) 481 load_module(); 482 483 req = gctl_get_handle(); 484 gctl_ro_param(req, "class", -1, gclass_name); 485 gctl_ro_param(req, "verb", -1, argv[0]); 486 if (version != NULL) 487 gctl_ro_param(req, "version", sizeof(*version), version); 488 parse_arguments(cmd, req, &argc, &argv); 489 490 bzero(buf, sizeof(buf)); 491 if (cmd->gc_func != NULL) { 492 unsigned flags; 493 494 flags = set_flags(cmd); 495 cmd->gc_func(req, flags); 496 errstr = req->error; 497 } else { 498 gctl_rw_param(req, "output", sizeof(buf), buf); 499 errstr = gctl_issue(req); 500 } 501 if (errstr != NULL && errstr[0] != '\0') { 502 warnx("%s", errstr); 503 if (strncmp(errstr, "warning: ", strlen("warning: ")) != 0) { 504 gctl_free(req); 505 exit(EXIT_FAILURE); 506 } 507 } 508 if (buf[0] != '\0') 509 printf("%s", buf); 510 gctl_free(req); 511 if (verbose) 512 printf("Done.\n"); 513 exit(EXIT_SUCCESS); 514 } 515 516 #ifndef STATIC_GEOM_CLASSES 517 static const char * 518 library_path(void) 519 { 520 const char *path; 521 522 path = getenv("GEOM_LIBRARY_PATH"); 523 if (path == NULL) 524 path = GEOM_CLASS_DIR; 525 return (path); 526 } 527 528 static void 529 load_library(void) 530 { 531 char *curpath, path[MAXPATHLEN], *tofree, *totalpath; 532 uint32_t *lib_version; 533 void *dlh; 534 int ret; 535 536 ret = 0; 537 tofree = totalpath = strdup(library_path()); 538 if (totalpath == NULL) 539 err(EXIT_FAILURE, "Not enough memory for library path"); 540 541 if (strchr(totalpath, ':') != NULL) 542 curpath = strsep(&totalpath, ":"); 543 else 544 curpath = totalpath; 545 /* Traverse the paths to find one that contains the library we want. */ 546 while (curpath != NULL) { 547 snprintf(path, sizeof(path), "%s/geom_%s.so", curpath, 548 class_name); 549 ret = access(path, F_OK); 550 if (ret == -1) { 551 if (errno == ENOENT) { 552 /* 553 * If we cannot find library, try the next 554 * path. 555 */ 556 curpath = strsep(&totalpath, ":"); 557 continue; 558 } 559 err(EXIT_FAILURE, "Cannot access library"); 560 } 561 break; 562 } 563 free(tofree); 564 /* No library was found, but standard commands can still be used */ 565 if (ret == -1) 566 return; 567 dlh = dlopen(path, RTLD_NOW); 568 if (dlh == NULL) 569 errx(EXIT_FAILURE, "Cannot open library: %s.", dlerror()); 570 lib_version = dlsym(dlh, "lib_version"); 571 if (lib_version == NULL) { 572 warnx("Cannot find symbol %s: %s.", "lib_version", dlerror()); 573 dlclose(dlh); 574 exit(EXIT_FAILURE); 575 } 576 if (*lib_version != G_LIB_VERSION) { 577 dlclose(dlh); 578 errx(EXIT_FAILURE, "%s and %s are not synchronized.", 579 getprogname(), path); 580 } 581 version = dlsym(dlh, "version"); 582 if (version == NULL) { 583 warnx("Cannot find symbol %s: %s.", "version", dlerror()); 584 dlclose(dlh); 585 exit(EXIT_FAILURE); 586 } 587 class_commands = dlsym(dlh, "class_commands"); 588 if (class_commands == NULL) { 589 warnx("Cannot find symbol %s: %s.", "class_commands", 590 dlerror()); 591 dlclose(dlh); 592 exit(EXIT_FAILURE); 593 } 594 } 595 #endif /* !STATIC_GEOM_CLASSES */ 596 597 /* 598 * Class name should be all capital letters. 599 */ 600 static void 601 set_class_name(void) 602 { 603 char *s1, *s2; 604 605 s1 = class_name; 606 for (; *s1 != '\0'; s1++) 607 *s1 = tolower(*s1); 608 gclass_name = malloc(strlen(class_name) + 1); 609 if (gclass_name == NULL) 610 errx(EXIT_FAILURE, "No memory"); 611 s1 = gclass_name; 612 s2 = class_name; 613 for (; *s2 != '\0'; s2++) 614 *s1++ = toupper(*s2); 615 *s1 = '\0'; 616 } 617 618 static void 619 get_class(int *argc, char ***argv) 620 { 621 622 snprintf(comm, sizeof(comm), "%s", basename((*argv)[0])); 623 if (strcmp(comm, "geom") == 0) { 624 if (*argc < 2) 625 usage(); 626 else if (*argc == 2) { 627 if (strcmp((*argv)[1], "-h") == 0 || 628 strcmp((*argv)[1], "help") == 0) { 629 usage(); 630 } 631 } 632 strlcatf(comm, sizeof(comm), " %s", (*argv)[1]); 633 class_name = (*argv)[1]; 634 *argc -= 2; 635 *argv += 2; 636 } else if (*comm == 'g') { 637 class_name = comm + 1; 638 *argc -= 1; 639 *argv += 1; 640 } else { 641 errx(EXIT_FAILURE, "Invalid utility name."); 642 } 643 644 #ifndef STATIC_GEOM_CLASSES 645 load_library(); 646 #else 647 if (!strcasecmp(class_name, "part")) { 648 version = &gpart_version; 649 class_commands = gpart_class_commands; 650 } else if (!strcasecmp(class_name, "label")) { 651 version = &glabel_version; 652 class_commands = glabel_class_commands; 653 } 654 #endif /* !STATIC_GEOM_CLASSES */ 655 656 set_class_name(); 657 658 /* If we can't load or list, it's not a class. */ 659 if (!std_available("load") && !std_available("list")) 660 errx(EXIT_FAILURE, "Invalid class name '%s'.", class_name); 661 662 if (*argc < 1) 663 usage(); 664 } 665 666 static struct ggeom * 667 find_geom_by_provider(struct gmesh *mesh, const char *name) 668 { 669 struct gclass *classp; 670 struct ggeom *gp; 671 struct gprovider *pp; 672 673 LIST_FOREACH(classp, &mesh->lg_class, lg_class) { 674 LIST_FOREACH(gp, &classp->lg_geom, lg_geom) { 675 LIST_FOREACH(pp, &gp->lg_provider, lg_provider) { 676 if (strcmp(pp->lg_name, name) == 0) 677 return (gp); 678 } 679 } 680 } 681 682 return (NULL); 683 } 684 685 static int 686 compute_tree_width_geom(struct gmesh *mesh, struct ggeom *gp, int indent) 687 { 688 struct gclass *classp2; 689 struct ggeom *gp2; 690 struct gconsumer *cp2; 691 struct gprovider *pp; 692 int max_width, width; 693 694 max_width = width = indent + strlen(gp->lg_name); 695 696 LIST_FOREACH(pp, &gp->lg_provider, lg_provider) { 697 LIST_FOREACH(classp2, &mesh->lg_class, lg_class) { 698 LIST_FOREACH(gp2, &classp2->lg_geom, lg_geom) { 699 LIST_FOREACH(cp2, 700 &gp2->lg_consumer, lg_consumer) { 701 if (pp != cp2->lg_provider) 702 continue; 703 width = compute_tree_width_geom(mesh, 704 gp2, indent + 2); 705 if (width > max_width) 706 max_width = width; 707 } 708 } 709 } 710 } 711 712 return (max_width); 713 } 714 715 static int 716 compute_tree_width(struct gmesh *mesh) 717 { 718 struct gclass *classp; 719 struct ggeom *gp; 720 int max_width, width; 721 722 max_width = width = 0; 723 724 LIST_FOREACH(classp, &mesh->lg_class, lg_class) { 725 LIST_FOREACH(gp, &classp->lg_geom, lg_geom) { 726 if (!LIST_EMPTY(&gp->lg_consumer)) 727 continue; 728 width = compute_tree_width_geom(mesh, gp, 0); 729 if (width > max_width) 730 max_width = width; 731 } 732 } 733 734 return (max_width); 735 } 736 737 static void 738 show_tree_geom(struct gmesh *mesh, struct ggeom *gp, int indent, int width) 739 { 740 struct gclass *classp2; 741 struct ggeom *gp2; 742 struct gconsumer *cp2; 743 struct gprovider *pp; 744 745 if (LIST_EMPTY(&gp->lg_provider)) { 746 printf("%*s%-*.*s %-*.*s\n", indent, "", 747 width - indent, width - indent, gp->lg_name, 748 GEOM_CLASS_WIDTH, GEOM_CLASS_WIDTH, gp->lg_class->lg_name); 749 return; 750 } 751 752 LIST_FOREACH(pp, &gp->lg_provider, lg_provider) { 753 printf("%*s%-*.*s %-*.*s %s\n", indent, "", 754 width - indent, width - indent, gp->lg_name, 755 GEOM_CLASS_WIDTH, GEOM_CLASS_WIDTH, gp->lg_class->lg_name, 756 pp->lg_name); 757 758 LIST_FOREACH(classp2, &mesh->lg_class, lg_class) { 759 LIST_FOREACH(gp2, &classp2->lg_geom, lg_geom) { 760 LIST_FOREACH(cp2, 761 &gp2->lg_consumer, lg_consumer) { 762 if (pp != cp2->lg_provider) 763 continue; 764 show_tree_geom(mesh, gp2, 765 indent + 2, width); 766 } 767 } 768 } 769 } 770 } 771 772 static void 773 show_tree(void) 774 { 775 struct gmesh mesh; 776 struct gclass *classp; 777 struct ggeom *gp; 778 int error, width; 779 780 error = geom_gettree(&mesh); 781 if (error != 0) 782 errc(EXIT_FAILURE, error, "Cannot get GEOM tree"); 783 784 width = compute_tree_width(&mesh); 785 786 printf("%-*.*s %-*.*s %s\n", 787 width, width, "Geom", 788 GEOM_CLASS_WIDTH, GEOM_CLASS_WIDTH, "Class", 789 "Provider"); 790 791 LIST_FOREACH(classp, &mesh.lg_class, lg_class) { 792 LIST_FOREACH(gp, &classp->lg_geom, lg_geom) { 793 if (!LIST_EMPTY(&gp->lg_consumer)) 794 continue; 795 show_tree_geom(&mesh, gp, 0, width); 796 } 797 } 798 } 799 800 int 801 main(int argc, char *argv[]) 802 { 803 char *provider_name; 804 bool tflag; 805 int ch; 806 807 provider_name = NULL; 808 tflag = false; 809 810 if (strcmp(getprogname(), "geom") == 0) { 811 while ((ch = getopt(argc, argv, "hp:t")) != -1) { 812 switch (ch) { 813 case 'p': 814 provider_name = strdup(optarg); 815 if (provider_name == NULL) 816 err(1, "strdup"); 817 break; 818 case 't': 819 tflag = true; 820 break; 821 case 'h': 822 default: 823 usage(); 824 } 825 } 826 827 /* 828 * Don't adjust argc and argv, it would break get_class(). 829 */ 830 } 831 832 if (tflag && provider_name != NULL) { 833 errx(EXIT_FAILURE, 834 "At most one of -P and -t may be specified."); 835 } 836 837 if (provider_name != NULL) { 838 list_one_geom_by_provider(provider_name); 839 return (0); 840 } 841 842 if (tflag) { 843 show_tree(); 844 return (0); 845 } 846 847 get_class(&argc, &argv); 848 run_command(argc, argv); 849 /* NOTREACHED */ 850 851 exit(EXIT_FAILURE); 852 } 853 854 static struct gclass * 855 find_class(struct gmesh *mesh, const char *name) 856 { 857 struct gclass *classp; 858 859 LIST_FOREACH(classp, &mesh->lg_class, lg_class) { 860 if (strcmp(classp->lg_name, name) == 0) 861 return (classp); 862 } 863 return (NULL); 864 } 865 866 static struct ggeom * 867 find_geom(struct gclass *classp, const char *name) 868 { 869 struct ggeom *gp; 870 871 if (strncmp(name, _PATH_DEV, sizeof(_PATH_DEV) - 1) == 0) 872 name += sizeof(_PATH_DEV) - 1; 873 874 LIST_FOREACH(gp, &classp->lg_geom, lg_geom) { 875 if (strcmp(gp->lg_name, name) == 0) 876 return (gp); 877 } 878 return (NULL); 879 } 880 881 static void 882 list_one_provider(struct gprovider *pp, const char *prefix) 883 { 884 struct gconfig *conf; 885 char buf[5]; 886 887 printf("Name: %s\n", pp->lg_name); 888 humanize_number(buf, sizeof(buf), (int64_t)pp->lg_mediasize, "", 889 HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL); 890 printf("%sMediasize: %jd (%s)\n", prefix, (intmax_t)pp->lg_mediasize, 891 buf); 892 printf("%sSectorsize: %u\n", prefix, pp->lg_sectorsize); 893 if (pp->lg_stripesize > 0 || pp->lg_stripeoffset > 0) { 894 printf("%sStripesize: %ju\n", prefix, pp->lg_stripesize); 895 printf("%sStripeoffset: %ju\n", prefix, pp->lg_stripeoffset); 896 } 897 printf("%sMode: %s\n", prefix, pp->lg_mode); 898 LIST_FOREACH(conf, &pp->lg_config, lg_config) { 899 printf("%s%s: %s\n", prefix, conf->lg_name, conf->lg_val); 900 } 901 } 902 903 static void 904 list_one_consumer(struct gconsumer *cp, const char *prefix) 905 { 906 struct gprovider *pp; 907 struct gconfig *conf; 908 909 pp = cp->lg_provider; 910 if (pp == NULL) 911 printf("[no provider]\n"); 912 else { 913 char buf[5]; 914 915 printf("Name: %s\n", pp->lg_name); 916 humanize_number(buf, sizeof(buf), (int64_t)pp->lg_mediasize, "", 917 HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL); 918 printf("%sMediasize: %jd (%s)\n", prefix, 919 (intmax_t)pp->lg_mediasize, buf); 920 printf("%sSectorsize: %u\n", prefix, pp->lg_sectorsize); 921 if (pp->lg_stripesize > 0 || pp->lg_stripeoffset > 0) { 922 printf("%sStripesize: %ju\n", prefix, pp->lg_stripesize); 923 printf("%sStripeoffset: %ju\n", prefix, pp->lg_stripeoffset); 924 } 925 printf("%sMode: %s\n", prefix, cp->lg_mode); 926 } 927 LIST_FOREACH(conf, &cp->lg_config, lg_config) { 928 printf("%s%s: %s\n", prefix, conf->lg_name, conf->lg_val); 929 } 930 } 931 932 static void 933 list_one_geom(struct ggeom *gp) 934 { 935 struct gprovider *pp; 936 struct gconsumer *cp; 937 struct gconfig *conf; 938 unsigned n; 939 940 printf("Geom name: %s\n", gp->lg_name); 941 LIST_FOREACH(conf, &gp->lg_config, lg_config) { 942 printf("%s: %s\n", conf->lg_name, conf->lg_val); 943 } 944 if (!LIST_EMPTY(&gp->lg_provider)) { 945 printf("Providers:\n"); 946 n = 1; 947 LIST_FOREACH(pp, &gp->lg_provider, lg_provider) { 948 printf("%u. ", n++); 949 list_one_provider(pp, " "); 950 } 951 } 952 if (!LIST_EMPTY(&gp->lg_consumer)) { 953 printf("Consumers:\n"); 954 n = 1; 955 LIST_FOREACH(cp, &gp->lg_consumer, lg_consumer) { 956 printf("%u. ", n++); 957 list_one_consumer(cp, " "); 958 } 959 } 960 printf("\n"); 961 } 962 963 static void 964 list_one_geom_by_provider(const char *provider_name) 965 { 966 struct gmesh mesh; 967 struct ggeom *gp; 968 int error; 969 970 error = geom_gettree(&mesh); 971 if (error != 0) 972 errc(EXIT_FAILURE, error, "Cannot get GEOM tree"); 973 974 gp = find_geom_by_provider(&mesh, provider_name); 975 if (gp == NULL) 976 errx(EXIT_FAILURE, "Cannot find provider '%s'.", provider_name); 977 978 printf("Geom class: %s\n", gp->lg_class->lg_name); 979 list_one_geom(gp); 980 } 981 982 static void 983 std_help(struct gctl_req *req __unused, unsigned flags __unused) 984 { 985 986 usage(); 987 } 988 989 static int 990 std_list_available(void) 991 { 992 struct gmesh mesh; 993 struct gclass *classp; 994 int error; 995 996 error = geom_gettree(&mesh); 997 if (error != 0) 998 errc(EXIT_FAILURE, error, "Cannot get GEOM tree"); 999 classp = find_class(&mesh, gclass_name); 1000 geom_deletetree(&mesh); 1001 if (classp != NULL) 1002 return (1); 1003 return (0); 1004 } 1005 1006 static void 1007 std_list(struct gctl_req *req, unsigned flags __unused) 1008 { 1009 struct gmesh mesh; 1010 struct gclass *classp; 1011 struct ggeom *gp; 1012 const char *name; 1013 int all, error, i, nargs; 1014 1015 error = geom_gettree(&mesh); 1016 if (error != 0) 1017 errc(EXIT_FAILURE, error, "Cannot get GEOM tree"); 1018 classp = find_class(&mesh, gclass_name); 1019 if (classp == NULL) { 1020 geom_deletetree(&mesh); 1021 errx(EXIT_FAILURE, "Class '%s' not found.", gclass_name); 1022 } 1023 nargs = gctl_get_int(req, "nargs"); 1024 all = gctl_get_int(req, "all"); 1025 if (nargs > 0) { 1026 for (i = 0; i < nargs; i++) { 1027 name = gctl_get_ascii(req, "arg%d", i); 1028 gp = find_geom(classp, name); 1029 if (gp == NULL) { 1030 errx(EXIT_FAILURE, "Class '%s' does not have " 1031 "an instance named '%s'.", 1032 gclass_name, name); 1033 } 1034 list_one_geom(gp); 1035 } 1036 } else { 1037 LIST_FOREACH(gp, &classp->lg_geom, lg_geom) { 1038 if (LIST_EMPTY(&gp->lg_provider) && !all) 1039 continue; 1040 list_one_geom(gp); 1041 } 1042 } 1043 geom_deletetree(&mesh); 1044 } 1045 1046 static int 1047 std_status_available(void) 1048 { 1049 1050 /* 'status' command is available when 'list' command is. */ 1051 return (std_list_available()); 1052 } 1053 1054 static void 1055 status_update_len(struct ggeom *gp, int *name_len, int *status_len) 1056 { 1057 struct gconfig *conf; 1058 int len; 1059 1060 assert(gp != NULL); 1061 assert(name_len != NULL); 1062 assert(status_len != NULL); 1063 1064 len = strlen(gp->lg_name); 1065 if (*name_len < len) 1066 *name_len = len; 1067 LIST_FOREACH(conf, &gp->lg_config, lg_config) { 1068 if (strcasecmp(conf->lg_name, "state") == 0) { 1069 len = strlen(conf->lg_val); 1070 if (*status_len < len) 1071 *status_len = len; 1072 } 1073 } 1074 } 1075 1076 static void 1077 status_update_len_prs(struct ggeom *gp, int *name_len, int *status_len) 1078 { 1079 struct gprovider *pp; 1080 struct gconfig *conf; 1081 int len, glen; 1082 1083 assert(gp != NULL); 1084 assert(name_len != NULL); 1085 assert(status_len != NULL); 1086 1087 glen = 0; 1088 LIST_FOREACH(conf, &gp->lg_config, lg_config) { 1089 if (strcasecmp(conf->lg_name, "state") == 0) { 1090 glen = strlen(conf->lg_val); 1091 break; 1092 } 1093 } 1094 LIST_FOREACH(pp, &gp->lg_provider, lg_provider) { 1095 len = strlen(pp->lg_name); 1096 if (*name_len < len) 1097 *name_len = len; 1098 len = glen; 1099 LIST_FOREACH(conf, &pp->lg_config, lg_config) { 1100 if (strcasecmp(conf->lg_name, "state") == 0) { 1101 len = strlen(conf->lg_val); 1102 break; 1103 } 1104 } 1105 if (*status_len < len) 1106 *status_len = len; 1107 } 1108 } 1109 1110 static char * 1111 status_one_consumer(struct gconsumer *cp) 1112 { 1113 static char buf[256]; 1114 struct gprovider *pp; 1115 struct gconfig *conf; 1116 const char *state, *syncr; 1117 1118 pp = cp->lg_provider; 1119 if (pp == NULL) 1120 return (NULL); 1121 state = NULL; 1122 syncr = NULL; 1123 LIST_FOREACH(conf, &cp->lg_config, lg_config) { 1124 if (strcasecmp(conf->lg_name, "state") == 0) 1125 state = conf->lg_val; 1126 if (strcasecmp(conf->lg_name, "synchronized") == 0) 1127 syncr = conf->lg_val; 1128 } 1129 if (state == NULL && syncr == NULL) 1130 snprintf(buf, sizeof(buf), "%s", pp->lg_name); 1131 else if (state != NULL && syncr != NULL) { 1132 snprintf(buf, sizeof(buf), "%s (%s, %s)", pp->lg_name, 1133 state, syncr); 1134 } else { 1135 snprintf(buf, sizeof(buf), "%s (%s)", pp->lg_name, 1136 state ? state : syncr); 1137 } 1138 return (buf); 1139 } 1140 1141 static void 1142 status_one_geom(struct ggeom *gp, int script, int name_len, int status_len) 1143 { 1144 struct gconsumer *cp; 1145 struct gconfig *conf; 1146 const char *name, *status, *component; 1147 int gotone; 1148 1149 name = gp->lg_name; 1150 status = "N/A"; 1151 LIST_FOREACH(conf, &gp->lg_config, lg_config) { 1152 if (strcasecmp(conf->lg_name, "state") == 0) { 1153 status = conf->lg_val; 1154 break; 1155 } 1156 } 1157 gotone = 0; 1158 LIST_FOREACH(cp, &gp->lg_consumer, lg_consumer) { 1159 component = status_one_consumer(cp); 1160 if (component == NULL) 1161 continue; 1162 gotone = 1; 1163 printf("%*s %*s %s\n", name_len, name, status_len, status, 1164 component); 1165 if (!script) 1166 name = status = ""; 1167 } 1168 if (!gotone) { 1169 printf("%*s %*s %s\n", name_len, name, status_len, status, 1170 "N/A"); 1171 } 1172 } 1173 1174 static void 1175 status_one_geom_prs(struct ggeom *gp, int script, int name_len, int status_len) 1176 { 1177 struct gprovider *pp; 1178 struct gconsumer *cp; 1179 struct gconfig *conf; 1180 const char *name, *status, *component; 1181 int gotone; 1182 1183 LIST_FOREACH(pp, &gp->lg_provider, lg_provider) { 1184 name = pp->lg_name; 1185 status = "N/A"; 1186 LIST_FOREACH(conf, &gp->lg_config, lg_config) { 1187 if (strcasecmp(conf->lg_name, "state") == 0) { 1188 status = conf->lg_val; 1189 break; 1190 } 1191 } 1192 LIST_FOREACH(conf, &pp->lg_config, lg_config) { 1193 if (strcasecmp(conf->lg_name, "state") == 0) { 1194 status = conf->lg_val; 1195 break; 1196 } 1197 } 1198 gotone = 0; 1199 LIST_FOREACH(cp, &gp->lg_consumer, lg_consumer) { 1200 component = status_one_consumer(cp); 1201 if (component == NULL) 1202 continue; 1203 gotone = 1; 1204 printf("%*s %*s %s\n", name_len, name, 1205 status_len, status, component); 1206 if (!script) 1207 name = status = ""; 1208 } 1209 if (!gotone) { 1210 printf("%*s %*s %s\n", name_len, name, 1211 status_len, status, "N/A"); 1212 } 1213 } 1214 } 1215 1216 static void 1217 std_status(struct gctl_req *req, unsigned flags __unused) 1218 { 1219 struct gmesh mesh; 1220 struct gclass *classp; 1221 struct ggeom *gp; 1222 const char *name; 1223 int name_len, status_len; 1224 int all, error, geoms, i, n, nargs, script; 1225 1226 error = geom_gettree(&mesh); 1227 if (error != 0) 1228 errc(EXIT_FAILURE, error, "Cannot get GEOM tree"); 1229 classp = find_class(&mesh, gclass_name); 1230 if (classp == NULL) 1231 errx(EXIT_FAILURE, "Class %s not found.", gclass_name); 1232 nargs = gctl_get_int(req, "nargs"); 1233 all = gctl_get_int(req, "all"); 1234 geoms = gctl_get_int(req, "geoms"); 1235 script = gctl_get_int(req, "script"); 1236 if (script) { 1237 name_len = 0; 1238 status_len = 0; 1239 } else { 1240 name_len = strlen("Name"); 1241 status_len = strlen("Status"); 1242 } 1243 if (nargs > 0) { 1244 for (i = 0, n = 0; i < nargs; i++) { 1245 name = gctl_get_ascii(req, "arg%d", i); 1246 gp = find_geom(classp, name); 1247 if (gp == NULL) 1248 errx(EXIT_FAILURE, "No such geom: %s.", name); 1249 if (geoms) { 1250 status_update_len(gp, 1251 &name_len, &status_len); 1252 } else { 1253 status_update_len_prs(gp, 1254 &name_len, &status_len); 1255 } 1256 n++; 1257 } 1258 if (n == 0) 1259 goto end; 1260 } else { 1261 n = 0; 1262 LIST_FOREACH(gp, &classp->lg_geom, lg_geom) { 1263 if (LIST_EMPTY(&gp->lg_provider) && !all) 1264 continue; 1265 if (geoms) { 1266 status_update_len(gp, 1267 &name_len, &status_len); 1268 } else { 1269 status_update_len_prs(gp, 1270 &name_len, &status_len); 1271 } 1272 n++; 1273 } 1274 if (n == 0) 1275 goto end; 1276 } 1277 if (!script) { 1278 printf("%*s %*s %s\n", name_len, "Name", status_len, "Status", 1279 "Components"); 1280 } 1281 if (nargs > 0) { 1282 for (i = 0; i < nargs; i++) { 1283 name = gctl_get_ascii(req, "arg%d", i); 1284 gp = find_geom(classp, name); 1285 if (gp == NULL) 1286 continue; 1287 if (geoms) { 1288 status_one_geom(gp, script, name_len, 1289 status_len); 1290 } else { 1291 status_one_geom_prs(gp, script, name_len, 1292 status_len); 1293 } 1294 } 1295 } else { 1296 LIST_FOREACH(gp, &classp->lg_geom, lg_geom) { 1297 if (LIST_EMPTY(&gp->lg_provider) && !all) 1298 continue; 1299 if (geoms) { 1300 status_one_geom(gp, script, name_len, 1301 status_len); 1302 } else { 1303 status_one_geom_prs(gp, script, name_len, 1304 status_len); 1305 } 1306 } 1307 } 1308 end: 1309 geom_deletetree(&mesh); 1310 } 1311 1312 static int 1313 std_load_available(void) 1314 { 1315 char name[MAXPATHLEN], paths[MAXPATHLEN * 8], *p; 1316 struct stat sb; 1317 size_t len; 1318 1319 snprintf(name, sizeof(name), "g_%s", class_name); 1320 /* 1321 * If already in kernel, "load" command is not available. 1322 */ 1323 if (modfind(name) >= 0) 1324 return (0); 1325 bzero(paths, sizeof(paths)); 1326 len = sizeof(paths); 1327 if (sysctlbyname("kern.module_path", paths, &len, NULL, 0) < 0) 1328 err(EXIT_FAILURE, "sysctl(kern.module_path)"); 1329 for (p = strtok(paths, ";"); p != NULL; p = strtok(NULL, ";")) { 1330 snprintf(name, sizeof(name), "%s/geom_%s.ko", p, class_name); 1331 /* 1332 * If geom_<name>.ko file exists, "load" command is available. 1333 */ 1334 if (stat(name, &sb) == 0) 1335 return (1); 1336 } 1337 return (0); 1338 } 1339 1340 static void 1341 std_load(struct gctl_req *req __unused, unsigned flags) 1342 { 1343 1344 /* 1345 * Do nothing special here, because of G_FLAG_LOADKLD flag, 1346 * module is already loaded. 1347 */ 1348 if ((flags & G_FLAG_VERBOSE) != 0) 1349 printf("Module available.\n"); 1350 } 1351 1352 static int 1353 std_unload_available(void) 1354 { 1355 char name[64]; 1356 int id; 1357 1358 snprintf(name, sizeof(name), "geom_%s", class_name); 1359 id = kldfind(name); 1360 if (id >= 0) 1361 return (1); 1362 return (0); 1363 } 1364 1365 static void 1366 std_unload(struct gctl_req *req, unsigned flags __unused) 1367 { 1368 char name[64]; 1369 int id; 1370 1371 snprintf(name, sizeof(name), "geom_%s", class_name); 1372 id = kldfind(name); 1373 if (id < 0) { 1374 gctl_error(req, "Could not find module: %s.", strerror(errno)); 1375 return; 1376 } 1377 if (kldunload(id) < 0) { 1378 gctl_error(req, "Could not unload module: %s.", 1379 strerror(errno)); 1380 return; 1381 } 1382 } 1383 1384 static int 1385 std_available(const char *name) 1386 { 1387 1388 if (strcmp(name, "help") == 0) 1389 return (1); 1390 else if (strcmp(name, "list") == 0) 1391 return (std_list_available()); 1392 else if (strcmp(name, "status") == 0) 1393 return (std_status_available()); 1394 else if (strcmp(name, "load") == 0) 1395 return (std_load_available()); 1396 else if (strcmp(name, "unload") == 0) 1397 return (std_unload_available()); 1398 else 1399 assert(!"Unknown standard command."); 1400 return (0); 1401 } 1402