1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 27 /* All Rights Reserved */ 28 29 /* 30 * University Copyright- Copyright (c) 1982, 1986, 1988 31 * The Regents of the University of California 32 * All Rights Reserved 33 * 34 * University Acknowledgment- Portions of this document are derived from 35 * software developed by the University of California, Berkeley, and its 36 * contributors. 37 * Portions contributed by Juergen Keil, <jk@tools.de>. 38 */ 39 40 41 /* 42 * Common code for halt(1M), poweroff(1M), and reboot(1M). We use 43 * argv[0] to determine which behavior to exhibit. 44 */ 45 46 #include <stdio.h> 47 #include <procfs.h> 48 #include <sys/types.h> 49 #include <sys/elf.h> 50 #include <sys/systeminfo.h> 51 #include <sys/stat.h> 52 #include <sys/uadmin.h> 53 #include <sys/mntent.h> 54 #include <sys/mnttab.h> 55 #include <sys/mount.h> 56 #include <sys/fs/ufs_mount.h> 57 #include <alloca.h> 58 #include <assert.h> 59 #include <errno.h> 60 #include <fcntl.h> 61 #include <libgen.h> 62 #include <libscf.h> 63 #include <limits.h> 64 #include <locale.h> 65 #include <libintl.h> 66 #include <syslog.h> 67 #include <signal.h> 68 #include <strings.h> 69 #include <unistd.h> 70 #include <stdlib.h> 71 #include <stdio.h> 72 #include <strings.h> 73 #include <time.h> 74 #include <wait.h> 75 #include <ctype.h> 76 #include <utmpx.h> 77 #include <pwd.h> 78 #include <zone.h> 79 #include <spawn.h> 80 81 #include <libzfs.h> 82 83 #if !defined(TEXT_DOMAIN) 84 #define TEXT_DOMAIN "SYS_TEST" 85 #endif 86 87 #if defined(__sparc) 88 #define CUR_ELFDATA ELFDATA2MSB 89 #elif defined(__i386) 90 #define CUR_ELFDATA ELFDATA2LSB 91 #endif 92 93 static libzfs_handle_t *g_zfs; 94 95 extern int audit_halt_setup(int, char **); 96 extern int audit_halt_success(void); 97 extern int audit_halt_fail(void); 98 99 extern int audit_reboot_setup(void); 100 extern int audit_reboot_success(void); 101 extern int audit_reboot_fail(void); 102 103 static char *cmdname; /* basename(argv[0]), the name of the command */ 104 105 typedef struct ctidlist_struct { 106 ctid_t ctid; 107 struct ctidlist_struct *next; 108 } ctidlist_t; 109 110 static ctidlist_t *ctidlist = NULL; 111 static ctid_t startdct = -1; 112 113 #define FMRI_STARTD_CONTRACT \ 114 "svc:/system/svc/restarter:default/:properties/restarter/contract" 115 116 #define ZONEADM_PROG "/usr/sbin/zoneadm" 117 118 #define LUUMOUNT_PROG "/usr/sbin/luumount" 119 #define LUMOUNT_PROG "/usr/sbin/lumount" 120 121 /* 122 * The length of FASTBOOT_MOUNTPOINT must be less than MAXPATHLEN. 123 */ 124 #define FASTBOOT_MOUNTPOINT "/tmp/.fastboot.root" 125 126 static char fastboot_mounted[MAXPATHLEN]; 127 128 static int validate_ufs_disk(char *, char *); 129 static int validate_zfs_pool(char *, char *); 130 131 static pid_t 132 get_initpid() 133 { 134 static int init_pid = -1; 135 136 if (init_pid == -1) { 137 if (zone_getattr(getzoneid(), ZONE_ATTR_INITPID, &init_pid, 138 sizeof (init_pid)) != sizeof (init_pid)) { 139 assert(errno == ESRCH); 140 init_pid = -1; 141 } 142 } 143 return (init_pid); 144 } 145 146 /* 147 * Quiesce or resume init using /proc. When stopping init, we can't send 148 * SIGTSTP (since init ignores it) or SIGSTOP (since the kernel won't permit 149 * it). 150 */ 151 static int 152 direct_init(long command) 153 { 154 char ctlfile[MAXPATHLEN]; 155 pid_t pid; 156 int ctlfd; 157 158 assert(command == PCDSTOP || command == PCRUN); 159 if ((pid = get_initpid()) == -1) { 160 return (-1); 161 } 162 163 (void) snprintf(ctlfile, sizeof (ctlfile), "/proc/%d/ctl", pid); 164 if ((ctlfd = open(ctlfile, O_WRONLY)) == -1) 165 return (-1); 166 167 if (command == PCDSTOP) { 168 if (write(ctlfd, &command, sizeof (long)) == -1) { 169 (void) close(ctlfd); 170 return (-1); 171 } 172 } else { /* command == PCRUN */ 173 long cmds[2]; 174 cmds[0] = command; 175 cmds[1] = 0; 176 if (write(ctlfd, cmds, sizeof (cmds)) == -1) { 177 (void) close(ctlfd); 178 return (-1); 179 } 180 } 181 (void) close(ctlfd); 182 return (0); 183 } 184 185 static void 186 stop_startd() 187 { 188 scf_handle_t *h; 189 scf_property_t *prop = NULL; 190 scf_value_t *val = NULL; 191 uint64_t uint64; 192 193 if ((h = scf_handle_create(SCF_VERSION)) == NULL) 194 return; 195 196 if ((scf_handle_bind(h) != 0) || 197 ((prop = scf_property_create(h)) == NULL) || 198 ((val = scf_value_create(h)) == NULL)) 199 goto out; 200 201 if (scf_handle_decode_fmri(h, FMRI_STARTD_CONTRACT, 202 NULL, NULL, NULL, NULL, prop, SCF_DECODE_FMRI_EXACT) != 0) 203 goto out; 204 205 if (scf_property_is_type(prop, SCF_TYPE_COUNT) != 0 || 206 scf_property_get_value(prop, val) != 0 || 207 scf_value_get_count(val, &uint64) != 0) 208 goto out; 209 210 startdct = (ctid_t)uint64; 211 (void) sigsend(P_CTID, startdct, SIGSTOP); 212 213 out: 214 scf_property_destroy(prop); 215 scf_value_destroy(val); 216 scf_handle_destroy(h); 217 } 218 219 static void 220 continue_startd() 221 { 222 if (startdct != -1) 223 (void) sigsend(P_CTID, startdct, SIGCONT); 224 } 225 226 #define FMRI_RESTARTER_PROP "/:properties/general/restarter" 227 #define FMRI_CONTRACT_PROP "/:properties/restarter/contract" 228 229 static int 230 save_ctid(ctid_t ctid) 231 { 232 ctidlist_t *next; 233 234 for (next = ctidlist; next != NULL; next = next->next) 235 if (next->ctid == ctid) 236 return (-1); 237 238 next = (ctidlist_t *)malloc(sizeof (ctidlist_t)); 239 if (next == NULL) 240 return (-1); 241 242 next->ctid = ctid; 243 next->next = ctidlist; 244 ctidlist = next; 245 return (0); 246 } 247 248 static void 249 stop_delegates() 250 { 251 ctid_t ctid; 252 scf_handle_t *h; 253 scf_scope_t *sc = NULL; 254 scf_service_t *svc = NULL; 255 scf_instance_t *inst = NULL; 256 scf_snapshot_t *snap = NULL; 257 scf_snapshot_t *isnap = NULL; 258 scf_propertygroup_t *pg = NULL; 259 scf_property_t *prop = NULL; 260 scf_value_t *val = NULL; 261 scf_iter_t *siter = NULL; 262 scf_iter_t *iiter = NULL; 263 char *fmri; 264 ssize_t length; 265 266 uint64_t uint64; 267 ssize_t bytes; 268 269 length = scf_limit(SCF_LIMIT_MAX_FMRI_LENGTH); 270 if (length <= 0) 271 return; 272 273 length++; 274 fmri = alloca(length * sizeof (char)); 275 276 if ((h = scf_handle_create(SCF_VERSION)) == NULL) 277 return; 278 279 if (scf_handle_bind(h) != 0) { 280 scf_handle_destroy(h); 281 return; 282 } 283 284 if ((sc = scf_scope_create(h)) == NULL || 285 (svc = scf_service_create(h)) == NULL || 286 (inst = scf_instance_create(h)) == NULL || 287 (snap = scf_snapshot_create(h)) == NULL || 288 (pg = scf_pg_create(h)) == NULL || 289 (prop = scf_property_create(h)) == NULL || 290 (val = scf_value_create(h)) == NULL || 291 (siter = scf_iter_create(h)) == NULL || 292 (iiter = scf_iter_create(h)) == NULL) 293 goto out; 294 295 if (scf_handle_get_scope(h, SCF_SCOPE_LOCAL, sc) != 0) 296 goto out; 297 298 if (scf_iter_scope_services(siter, sc) != 0) 299 goto out; 300 301 while (scf_iter_next_service(siter, svc) == 1) { 302 303 if (scf_iter_service_instances(iiter, svc) != 0) 304 continue; 305 306 while (scf_iter_next_instance(iiter, inst) == 1) { 307 308 if ((scf_instance_get_snapshot(inst, "running", 309 snap)) != 0) 310 isnap = NULL; 311 else 312 isnap = snap; 313 314 if (scf_instance_get_pg_composed(inst, isnap, 315 SCF_PG_GENERAL, pg) != 0) 316 continue; 317 318 if (scf_pg_get_property(pg, SCF_PROPERTY_RESTARTER, 319 prop) != 0 || 320 scf_property_get_value(prop, val) != 0) 321 continue; 322 323 bytes = scf_value_get_astring(val, fmri, length); 324 if (bytes <= 0 || bytes >= length) 325 continue; 326 327 if (strlcat(fmri, FMRI_CONTRACT_PROP, length) >= 328 length) 329 continue; 330 331 if (scf_handle_decode_fmri(h, fmri, NULL, NULL, 332 NULL, NULL, prop, SCF_DECODE_FMRI_EXACT) != 0) 333 continue; 334 335 if (scf_property_is_type(prop, SCF_TYPE_COUNT) != 0 || 336 scf_property_get_value(prop, val) != 0 || 337 scf_value_get_count(val, &uint64) != 0) 338 continue; 339 340 ctid = (ctid_t)uint64; 341 if (save_ctid(ctid) == 0) { 342 (void) sigsend(P_CTID, ctid, SIGSTOP); 343 } 344 } 345 } 346 out: 347 scf_scope_destroy(sc); 348 scf_service_destroy(svc); 349 scf_instance_destroy(inst); 350 scf_snapshot_destroy(snap); 351 scf_pg_destroy(pg); 352 scf_property_destroy(prop); 353 scf_value_destroy(val); 354 scf_iter_destroy(siter); 355 scf_iter_destroy(iiter); 356 357 (void) scf_handle_unbind(h); 358 scf_handle_destroy(h); 359 } 360 361 static void 362 continue_delegates() 363 { 364 ctidlist_t *next; 365 for (next = ctidlist; next != NULL; next = next->next) 366 (void) sigsend(P_CTID, next->ctid, SIGCONT); 367 } 368 369 static void 370 stop_restarters() 371 { 372 stop_startd(); 373 stop_delegates(); 374 } 375 376 static void 377 continue_restarters() 378 { 379 continue_startd(); 380 continue_delegates(); 381 } 382 383 /* 384 * Copy an array of strings into buf, separated by spaces. Returns 0 on 385 * success. 386 */ 387 static int 388 gather_args(char **args, char *buf, size_t buf_sz) 389 { 390 if (strlcpy(buf, *args, buf_sz) >= buf_sz) 391 return (-1); 392 393 for (++args; *args != NULL; ++args) { 394 if (strlcat(buf, " ", buf_sz) >= buf_sz) 395 return (-1); 396 if (strlcat(buf, *args, buf_sz) >= buf_sz) 397 return (-1); 398 } 399 400 return (0); 401 } 402 403 /* 404 * Halt every zone on the system. We are committed to doing a shutdown 405 * even if something goes wrong here. If something goes wrong, we just 406 * continue with the shutdown. Return non-zero if we need to wait for zones to 407 * halt later on. 408 */ 409 static int 410 halt_zones() 411 { 412 pid_t pid; 413 zoneid_t *zones; 414 size_t nz = 0, old_nz; 415 int i; 416 char zname[ZONENAME_MAX]; 417 418 /* 419 * Get a list of zones. If the number of zones changes in between the 420 * two zone_list calls, try again. 421 */ 422 423 for (;;) { 424 (void) zone_list(NULL, &nz); 425 if (nz == 1) 426 return (0); 427 old_nz = nz; 428 zones = calloc(sizeof (zoneid_t), nz); 429 if (zones == NULL) { 430 (void) fprintf(stderr, 431 gettext("%s: Could not halt zones" 432 " (out of memory).\n"), cmdname); 433 return (0); 434 } 435 436 (void) zone_list(zones, &nz); 437 if (old_nz == nz) 438 break; 439 free(zones); 440 } 441 442 if (nz == 2) { 443 (void) fprintf(stderr, gettext("%s: Halting 1 zone.\n"), 444 cmdname); 445 } else { 446 (void) fprintf(stderr, gettext("%s: Halting %i zones.\n"), 447 cmdname, nz - 1); 448 } 449 450 for (i = 0; i < nz; i++) { 451 if (zones[i] == GLOBAL_ZONEID) 452 continue; 453 if (getzonenamebyid(zones[i], zname, sizeof (zname)) < 0) { 454 /* 455 * getzonenamebyid should only fail if we raced with 456 * another process trying to shut down the zone. 457 * We assume this happened and ignore the error. 458 */ 459 if (errno != EINVAL) { 460 (void) fprintf(stderr, 461 gettext("%s: Unexpected error while " 462 "looking up zone %ul: %s.\n"), 463 cmdname, zones[i], strerror(errno)); 464 } 465 466 continue; 467 } 468 pid = fork(); 469 if (pid < 0) { 470 (void) fprintf(stderr, 471 gettext("%s: Zone \"%s\" could not be" 472 " halted (could not fork(): %s).\n"), 473 cmdname, zname, strerror(errno)); 474 continue; 475 } 476 if (pid == 0) { 477 (void) execl(ZONEADM_PROG, ZONEADM_PROG, 478 "-z", zname, "halt", NULL); 479 (void) fprintf(stderr, 480 gettext("%s: Zone \"%s\" could not be halted" 481 " (cannot exec(" ZONEADM_PROG "): %s).\n"), 482 cmdname, zname, strerror(errno)); 483 exit(0); 484 } 485 } 486 487 return (1); 488 } 489 490 /* 491 * This function tries to wait for all non-global zones to go away. 492 * It will timeout if no progress is made for 5 seconds, or a total of 493 * 30 seconds elapses. 494 */ 495 496 static void 497 check_zones_haltedness() 498 { 499 int t = 0, t_prog = 0; 500 size_t nz = 0, last_nz; 501 502 do { 503 last_nz = nz; 504 (void) zone_list(NULL, &nz); 505 if (nz == 1) 506 return; 507 508 (void) sleep(1); 509 510 if (last_nz > nz) 511 t_prog = 0; 512 513 t++; 514 t_prog++; 515 516 if (t == 10) { 517 if (nz == 2) { 518 (void) fprintf(stderr, 519 gettext("%s: Still waiting for 1 zone to " 520 "halt. Will wait up to 20 seconds.\n"), 521 cmdname); 522 } else { 523 (void) fprintf(stderr, 524 gettext("%s: Still waiting for %i zones " 525 "to halt. Will wait up to 20 seconds.\n"), 526 cmdname, nz - 1); 527 } 528 } 529 530 } while ((t < 30) && (t_prog < 5)); 531 } 532 533 534 /* 535 * Validate that this is a root disk or dataset 536 * Returns 0 if it is a root disk or dataset; 537 * returns 1 if it is a disk argument or dataset, but not valid or not root; 538 * returns -1 if it is not a valid argument or a disk argument. 539 */ 540 static int 541 validate_disk(char *arg, char *mountpoint) 542 { 543 static char root_dev_path[] = "/dev/dsk"; 544 char kernpath[MAXPATHLEN]; 545 struct stat buf; 546 struct stat64 statbuf; 547 int rc = 0; 548 549 if (strlen(arg) > MAXPATHLEN) { 550 (void) fprintf(stderr, 551 gettext("%s: argument is too long\n"), cmdname); 552 return (-1); 553 } 554 555 bcopy(FASTBOOT_MOUNTPOINT, mountpoint, sizeof (FASTBOOT_MOUNTPOINT)); 556 557 /* 558 * Do a force umount just in case some other filesystem has 559 * been mounted there. 560 */ 561 (void) umount2(mountpoint, MS_FORCE); 562 563 /* Create the directory if it doesn't already exist */ 564 if (lstat(mountpoint, &buf) != 0) { 565 if (mkdirp(mountpoint, 0755) != 0) { 566 (void) fprintf(stderr, 567 gettext("failed to create mountpoint %s\n"), 568 mountpoint); 569 return (-1); 570 } 571 } 572 573 if (strncmp(arg, root_dev_path, strlen(root_dev_path)) == 0) { 574 /* ufs root disk argument */ 575 rc = validate_ufs_disk(arg, mountpoint); 576 } else { 577 /* zfs root pool argument */ 578 rc = validate_zfs_pool(arg, mountpoint); 579 } 580 581 if (rc != 0) 582 return (rc); 583 584 (void) snprintf(kernpath, MAXPATHLEN, "%s/platform/i86pc/kernel/unix", 585 mountpoint); 586 587 if (stat64(kernpath, &statbuf) != 0) { 588 (void) fprintf(stderr, 589 gettext("%s: %s is not a root disk or dataset\n"), 590 cmdname, arg); 591 return (1); 592 } 593 594 return (0); 595 } 596 597 598 static int 599 validate_ufs_disk(char *arg, char *mountpoint) 600 { 601 struct ufs_args ufs_args = { 0 }; 602 char mntopts[MNT_LINE_MAX] = MNTOPT_LARGEFILES; 603 604 /* perform the mount */ 605 ufs_args.flags = UFSMNT_LARGEFILES; 606 if (mount(arg, mountpoint, MS_DATA|MS_OPTIONSTR, 607 MNTTYPE_UFS, &ufs_args, sizeof (ufs_args), 608 mntopts, sizeof (mntopts)) != 0) { 609 perror(cmdname); 610 (void) fprintf(stderr, 611 gettext("%s: failed to mount %s\n"), cmdname, arg); 612 return (-1); 613 } 614 615 return (0); 616 } 617 618 static int 619 validate_zfs_pool(char *arg, char *mountpoint) 620 { 621 zfs_handle_t *zhp = NULL; 622 char mntopts[MNT_LINE_MAX] = { '\0' }; 623 int rc = 0; 624 625 if ((g_zfs = libzfs_init()) == NULL) { 626 (void) fprintf(stderr, gettext("internal error: failed to " 627 "initialize ZFS library\n")); 628 return (-1); 629 } 630 631 /* Try to open the dataset */ 632 if ((zhp = zfs_open(g_zfs, arg, 633 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_DATASET)) == NULL) 634 return (-1); 635 636 /* perform the mount */ 637 if (mount(zfs_get_name(zhp), mountpoint, MS_DATA|MS_OPTIONSTR, 638 MNTTYPE_ZFS, NULL, 0, mntopts, sizeof (mntopts)) != 0) { 639 perror(cmdname); 640 (void) fprintf(stderr, 641 gettext("%s: failed to mount %s\n"), cmdname, arg); 642 rc = -1; 643 } 644 645 validate_zfs_err_out: 646 if (zhp != NULL) 647 zfs_close(zhp); 648 649 libzfs_fini(g_zfs); 650 return (rc); 651 } 652 653 /* 654 * Return 0 if not zfs, or is zfs and have successfully constructed the 655 * boot argument; returns non-zero otherwise. 656 * At successful completion fpth contains pointer where mount point ends. 657 * NOTE: arg is supposed to be the resolved path 658 */ 659 static int 660 get_zfs_bootfs_arg(const char *arg, const char ** fpth, int *is_zfs, 661 char *bootfs_arg) 662 { 663 zfs_handle_t *zhp = NULL; 664 zpool_handle_t *zpoolp = NULL; 665 FILE *mtabp = NULL; 666 struct mnttab mnt; 667 char *poolname = NULL; 668 char physpath[MAXNAMELEN]; 669 char mntsp[ZPOOL_MAXNAMELEN]; 670 char bootfs[ZPOOL_MAXNAMELEN]; 671 int rc = 0; 672 size_t mntlen = 0; 673 size_t msz; 674 675 *fpth = arg; 676 *is_zfs = 0; 677 678 bzero(physpath, sizeof (physpath)); 679 bzero(bootfs, sizeof (bootfs)); 680 681 if ((mtabp = fopen(MNTTAB, "r")) == NULL) { 682 return (-1); 683 } 684 685 while (getmntent(mtabp, &mnt) == 0) { 686 if (strstr(arg, mnt.mnt_mountp) == arg && 687 (msz = strlen(mnt.mnt_mountp)) > mntlen) { 688 mntlen = msz; 689 *is_zfs = strcmp(MNTTYPE_ZFS, mnt.mnt_fstype) == 0; 690 (void) strlcpy(mntsp, mnt.mnt_special, sizeof (mntsp)); 691 } 692 } 693 694 (void) fclose(mtabp); 695 696 if (mntlen > 1) 697 *fpth += mntlen; 698 699 if (!*is_zfs) 700 return (0); 701 702 if ((g_zfs = libzfs_init()) == NULL) 703 return (-1); 704 705 /* Try to open the dataset */ 706 if ((zhp = zfs_open(g_zfs, mntsp, 707 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_DATASET)) == NULL) { 708 (void) fprintf(stderr, gettext("cannot open %s\n"), mntsp); 709 rc = -1; 710 goto validate_zfs_err_out; 711 } 712 713 (void) strlcpy(bootfs, mntsp, sizeof (bootfs)); 714 715 if ((poolname = strtok(mntsp, "/")) == NULL) { 716 rc = -1; 717 goto validate_zfs_err_out; 718 } 719 720 if ((zpoolp = zpool_open(g_zfs, poolname)) == NULL) { 721 (void) fprintf(stderr, gettext("cannot open %s\n"), poolname); 722 rc = -1; 723 goto validate_zfs_err_out; 724 } 725 726 if (zpool_get_physpath(zpoolp, physpath) != 0) { 727 (void) fprintf(stderr, gettext("cannot find phys_path\n")); 728 rc = -1; 729 goto validate_zfs_err_out; 730 } 731 732 if (zpool_set_prop(zpoolp, "bootfs", bootfs) != 0) { 733 (void) fprintf(stderr, gettext("cannot set bootfs to %s\n"), 734 bootfs); 735 rc = -1; 736 goto validate_zfs_err_out; 737 } 738 739 (void) snprintf(bootfs_arg, BOOTARGS_MAX, 740 "-B zfs-bootfs=%s,bootpath=\"%s\"", bootfs, physpath); 741 742 validate_zfs_err_out: 743 if (zhp != NULL) 744 zfs_close(zhp); 745 746 if (zpoolp != NULL) 747 zpool_close(zpoolp); 748 749 libzfs_fini(g_zfs); 750 return (rc); 751 } 752 753 /* 754 * Validate that the file exists, and is an ELF file. 755 * Returns 0 on success, -1 on failure. 756 */ 757 static int 758 validate_unix(char *arg, int *mplen, int *is_zfs, char *bootfs_arg, 759 int *failsafe) 760 { 761 const char *location; 762 int class, format; 763 unsigned char ident[EI_NIDENT]; 764 char physpath[MAXPATHLEN]; 765 int elffd = -1; 766 size_t sz; 767 768 if ((sz = resolvepath(arg, physpath, sizeof (physpath) - 1)) == 769 (size_t)-1) { 770 (void) fprintf(stderr, 771 gettext("cannot resolve path for %s: %s\n"), 772 arg, strerror(errno)); 773 return (-1); 774 } 775 (void) strlcpy(arg, physpath, sz + 1); 776 777 if (strlen(arg) > MAXPATHLEN) { 778 (void) fprintf(stderr, 779 gettext("%s: new kernel name is too long\n"), cmdname); 780 return (-1); 781 } 782 783 if (strncmp(basename(arg), "unix", 4) != 0) { 784 (void) fprintf(stderr, 785 gettext("%s: %s: kernel name must be unix\n"), 786 cmdname, arg); 787 return (-1); 788 } 789 790 if (get_zfs_bootfs_arg(arg, &location, is_zfs, bootfs_arg) != 0) 791 goto err_out; 792 793 *mplen = location - arg; 794 795 if ((strstr(location, "/boot/platform")) == location) 796 *failsafe = 1; 797 else if ((strstr(location, "/platform")) == location) 798 *failsafe = 0; 799 else { 800 (void) fprintf(stderr, 801 gettext("%s: %s: no /boot/platform or /platform in" 802 " file name\n"), cmdname, arg); 803 goto err_out; 804 } 805 806 if ((elffd = open64(arg, O_RDONLY)) < 0 || 807 (pread64(elffd, ident, EI_NIDENT, 0) != EI_NIDENT)) { 808 (void) fprintf(stderr, "%s: %s: %s\n", 809 cmdname, arg, strerror(errno)); 810 goto err_out; 811 } 812 813 class = ident[EI_CLASS]; 814 815 if ((class != ELFCLASS32 && class != ELFCLASS64) || 816 ident[EI_MAG0] != ELFMAG0 || ident[EI_MAG1] != ELFMAG1 || 817 ident[EI_MAG2] != ELFMAG2 || ident[EI_MAG3] != ELFMAG3) { 818 (void) fprintf(stderr, 819 gettext("%s: %s: not a valid ELF file\n"), 820 cmdname, arg); 821 goto err_out; 822 } 823 824 format = ident[EI_DATA]; 825 826 if (format != CUR_ELFDATA) { 827 (void) fprintf(stderr, gettext("%s: %s: invalid data format\n"), 828 cmdname, arg); 829 goto err_out; 830 } 831 832 return (0); 833 834 err_out: 835 if (elffd >= 0) { 836 (void) close(elffd); 837 elffd = -1; 838 } 839 return (-1); 840 } 841 842 #ifndef __i386 843 /* ARGSUSED */ 844 #endif /* __i386 */ 845 static int 846 is_fastboot_default(uid_t uid) 847 { 848 #if defined(__i386) 849 int ret; 850 struct stat st; 851 static const char fastboot_default[] = "/etc/fastreboot"; 852 853 ret = (lstat(fastboot_default, &st) == 0 && 854 S_ISREG(st.st_mode) && 855 (st.st_mode & S_IRUSR) != 0 && 856 uid == st.st_uid); 857 858 return (ret); 859 #else 860 return (0); 861 #endif /* __i386 */ 862 } 863 864 static int 865 halt_exec(const char *path, ...) 866 { 867 pid_t pid; 868 int i; 869 int st; 870 const char *arg; 871 va_list vp; 872 const char *argv[256]; 873 874 if ((pid = fork()) == -1) { 875 return (errno); 876 } else if (pid == 0) { 877 (void) fclose(stdout); 878 (void) fclose(stderr); 879 880 argv[0] = path; 881 i = 1; 882 883 va_start(vp, path); 884 885 do { 886 arg = va_arg(vp, const char *); 887 argv[i] = arg; 888 } while (arg != NULL && 889 ++i != sizeof (argv) / sizeof (argv[0])); 890 891 va_end(vp); 892 893 (void) execve(path, (char * const *)argv, NULL); 894 (void) fprintf(stderr, gettext("cannot execute %s: %s\n"), 895 path, strerror(errno)); 896 exit(-1); 897 } else { 898 if (waitpid(pid, &st, 0) == pid && 899 !WIFSIGNALED(st) && WIFEXITED(st)) 900 st = WEXITSTATUS(st); 901 else 902 st = -1; 903 } 904 return (st); 905 } 906 907 /* 908 * Invokes lumount for bename. 909 * At successfull completion returns zero and copies contents of bename 910 * into mountpoint[] 911 */ 912 static int 913 fastboot_bename(const char *bename, char *mountpoint, size_t mpsz) 914 { 915 int rc; 916 917 (void) halt_exec(LUUMOUNT_PROG, "-n", bename, NULL); 918 919 if ((rc = halt_exec(LUMOUNT_PROG, "-n", bename, FASTBOOT_MOUNTPOINT, 920 NULL)) != 0) 921 (void) fprintf(stderr, gettext("%s: cannot mount BE %s\n"), 922 cmdname, bename); 923 else 924 (void) strlcpy(mountpoint, FASTBOOT_MOUNTPOINT, mpsz); 925 926 return (rc); 927 } 928 929 /* 930 * Returns 0 on successful parsing of the arguments; 931 * retuens non-zero on failure. 932 */ 933 static int 934 parse_fastboot_args(char *bootargs_buf, int *is_dryrun, const char *bename, 935 int *failsafe) 936 { 937 char mountpoint[MAXPATHLEN]; 938 char bootargs_saved[BOOTARGS_MAX]; 939 char bootargs_scratch[BOOTARGS_MAX]; 940 char bootfs_arg[BOOTARGS_MAX]; 941 char unixfile[BOOTARGS_MAX]; 942 char *head, *newarg; 943 int buflen; /* length of the bootargs_buf */ 944 int mplen; /* length of the mount point */ 945 int rootlen = 0; /* length of the root argument */ 946 int unixlen = 0; /* length of the unix argument */ 947 int off = 0; /* offset into the new boot argument */ 948 int is_zfs = 0; 949 int rc = 0; 950 951 bzero(mountpoint, sizeof (mountpoint)); 952 953 /* 954 * If argc is not 0, buflen is length of the argument being passed in; 955 * else it is 0 as bootargs_buf has been initialized to all 0's. 956 */ 957 buflen = strlen(bootargs_buf); 958 959 /* Save a copy of the original argument */ 960 bcopy(bootargs_buf, bootargs_saved, buflen); 961 bzero(&bootargs_saved[buflen], sizeof (bootargs_saved) - buflen); 962 963 /* Save another copy to be used by strtok */ 964 bcopy(bootargs_buf, bootargs_scratch, buflen); 965 bzero(&bootargs_scratch[buflen], sizeof (bootargs_scratch) - buflen); 966 head = &bootargs_scratch[0]; 967 968 /* Zero out the boot argument buffer as we will reconstruct it */ 969 bzero(bootargs_buf, BOOTARGS_MAX); 970 bzero(bootfs_arg, BOOTARGS_MAX); 971 bzero(unixfile, sizeof (unixfile)); 972 973 /* Get the first argument */ 974 newarg = strtok(bootargs_scratch, " "); 975 976 /* 977 * If this is a dry run request, verify that the drivers can handle 978 * fast reboot. 979 */ 980 if (newarg && strncasecmp(newarg, "dryrun", strlen("dryrun")) == 0) { 981 *is_dryrun = 1; 982 (void) system("/usr/sbin/devfsadm"); 983 } 984 985 /* 986 * Always perform a dry run to identify all the drivers that 987 * need to implement devo_reset(). 988 */ 989 if (uadmin(A_SHUTDOWN, AD_FASTREBOOT_DRYRUN, 990 (uintptr_t)bootargs_saved) != 0) { 991 (void) fprintf(stderr, gettext("%s: not all drivers " 992 "have implemented quiesce(9E)\n"), cmdname); 993 } else if (*is_dryrun) { 994 (void) fprintf(stderr, gettext("%s: all drivers have " 995 "implemented quiesce(9E)\n"), cmdname); 996 } 997 998 /* 999 * Return if it is a true dry run. 1000 */ 1001 if (*is_dryrun) 1002 return (rc); 1003 1004 if (bename && (rc = fastboot_bename(bename, mountpoint, 1005 sizeof (mountpoint))) != 0) 1006 return (rc); 1007 1008 /* 1009 * If BE is not specified, look for disk argument to construct 1010 * mountpoint; if BE has been specified, mountpoint has already been 1011 * constructed. 1012 */ 1013 if (newarg && newarg[0] != '-' && !bename) { 1014 int tmprc; 1015 1016 if ((tmprc = validate_disk(newarg, mountpoint)) == 0) { 1017 /* 1018 * The first argument is a valid root argument. 1019 * Get the next argument. 1020 */ 1021 newarg = strtok(NULL, " "); 1022 rootlen = (newarg) ? (newarg - head) : buflen; 1023 (void) strlcpy(fastboot_mounted, mountpoint, 1024 sizeof (fastboot_mounted)); 1025 1026 } else if (tmprc == -1) { 1027 /* 1028 * Not a disk argument. Use / as default root. 1029 */ 1030 bcopy("/", mountpoint, 1); 1031 bzero(&mountpoint[1], sizeof (mountpoint) - 1); 1032 } else { 1033 /* 1034 * Disk argument, but not valid or not root. 1035 * Return failure. 1036 */ 1037 return (EINVAL); 1038 } 1039 } 1040 1041 /* 1042 * Make mountpoint the first part of unixfile. 1043 * If there is not disk argument, and BE has not been specified, 1044 * mountpoint could be empty. 1045 */ 1046 mplen = strlen(mountpoint); 1047 bcopy(mountpoint, unixfile, mplen); 1048 1049 /* 1050 * Look for unix argument 1051 */ 1052 if (newarg && newarg[0] != '-') { 1053 bcopy(newarg, &unixfile[mplen], strlen(newarg)); 1054 newarg = strtok(NULL, " "); 1055 rootlen = (newarg) ? (newarg - head) : buflen; 1056 } else if (mplen != 0) { 1057 /* 1058 * No unix argument, but mountpoint is not empty, use 1059 * /platform/i86pc/$ISADIR/kernel/unix as default. 1060 */ 1061 char isa[20]; 1062 1063 if (sysinfo(SI_ARCHITECTURE_64, isa, sizeof (isa)) != -1) 1064 (void) snprintf(&unixfile[mplen], 1065 sizeof (unixfile) - mplen, 1066 "/platform/i86pc/kernel/%s/unix", isa); 1067 else if (sysinfo(SI_ARCHITECTURE_32, isa, sizeof (isa)) != -1) { 1068 (void) snprintf(&unixfile[mplen], 1069 sizeof (unixfile) - mplen, 1070 "/platform/i86pc/kernel/unix"); 1071 } else { 1072 (void) fprintf(stderr, 1073 gettext("%s: unknown architecture"), cmdname); 1074 return (EINVAL); 1075 } 1076 } 1077 1078 /* 1079 * We now have the complete unix argument. Verify that it exists and 1080 * is an ELF file. Split the argument up into mountpoint and unix 1081 * portions again. This is necessary to handle cases where mountpoint 1082 * is specified on the command line as part of the unix argument, 1083 * such as this: 1084 * # reboot -f /.alt/platform/i86pc/kernel/amd64/unix 1085 */ 1086 unixlen = strlen(unixfile); 1087 if (unixlen > 0) { 1088 if (validate_unix(unixfile, &mplen, &is_zfs, 1089 bootfs_arg, failsafe) != 0) { 1090 /* Not a valid unix file */ 1091 return (EINVAL); 1092 } else { 1093 int space = 0; 1094 /* 1095 * Construct boot argument. 1096 */ 1097 unixlen = strlen(unixfile); 1098 1099 /* 1100 * mdep cannot start with space because bootadm 1101 * creates bogus menu entries if it does. 1102 */ 1103 if (mplen > 0) { 1104 bcopy(unixfile, bootargs_buf, mplen); 1105 (void) strcat(bootargs_buf, " "); 1106 space = 1; 1107 } 1108 bcopy(&unixfile[mplen], &bootargs_buf[mplen + space], 1109 unixlen - mplen); 1110 (void) strcat(bootargs_buf, " "); 1111 off += unixlen + space + 1; 1112 } 1113 } else { 1114 /* Check to see if root is zfs */ 1115 const char *dp; 1116 (void) get_zfs_bootfs_arg("/", &dp, &is_zfs, bootfs_arg); 1117 } 1118 1119 if (is_zfs && (buflen != 0 || bename != NULL)) { 1120 /* LINTED E_SEC_SPRINTF_UNBOUNDED_COPY */ 1121 off += sprintf(bootargs_buf + off, "%s ", bootfs_arg); 1122 } 1123 1124 /* 1125 * Copy the rest of the arguments 1126 */ 1127 bcopy(&bootargs_saved[rootlen], &bootargs_buf[off], buflen - rootlen); 1128 1129 return (rc); 1130 } 1131 1132 int 1133 main(int argc, char *argv[]) 1134 { 1135 char *ttyn = ttyname(STDERR_FILENO); 1136 1137 uid_t euid; 1138 int qflag = 0, needlog = 1, nosync = 0; 1139 int fast_reboot = 0; 1140 uintptr_t mdep = NULL; 1141 int cmd, fcn, c, aval, r; 1142 const char *usage; 1143 const char *optstring; 1144 zoneid_t zoneid = getzoneid(); 1145 int need_check_zones = 0; 1146 char bootargs_buf[BOOTARGS_MAX]; 1147 int failsafe = 0; 1148 char *bename = NULL; 1149 1150 const char * const resetting = "/etc/svc/volatile/resetting"; 1151 1152 (void) setlocale(LC_ALL, ""); 1153 (void) textdomain(TEXT_DOMAIN); 1154 1155 cmdname = basename(argv[0]); 1156 1157 if (strcmp(cmdname, "halt") == 0) { 1158 (void) audit_halt_setup(argc, argv); 1159 optstring = "dlnqy"; 1160 usage = gettext("usage: %s [ -dlnqy ]\n"); 1161 cmd = A_SHUTDOWN; 1162 fcn = AD_HALT; 1163 } else if (strcmp(cmdname, "poweroff") == 0) { 1164 (void) audit_halt_setup(argc, argv); 1165 optstring = "dlnqy"; 1166 usage = gettext("usage: %s [ -dlnqy ]\n"); 1167 cmd = A_SHUTDOWN; 1168 fcn = AD_POWEROFF; 1169 } else if (strcmp(cmdname, "reboot") == 0) { 1170 (void) audit_reboot_setup(); 1171 #if defined(__i386) 1172 optstring = "dlnqfe:"; 1173 usage = gettext("usage: %s [ -dlnqfe: ] [ boot args ]\n"); 1174 #else 1175 optstring = "dlnq"; 1176 usage = gettext("usage: %s [ -dlnq ] [ boot args ]\n"); 1177 #endif 1178 cmd = A_SHUTDOWN; 1179 fcn = AD_BOOT; 1180 } else { 1181 (void) fprintf(stderr, 1182 gettext("%s: not installed properly\n"), cmdname); 1183 return (1); 1184 } 1185 1186 while ((c = getopt(argc, argv, optstring)) != EOF) { 1187 switch (c) { 1188 case 'd': 1189 if (zoneid == GLOBAL_ZONEID) 1190 cmd = A_DUMP; 1191 else { 1192 (void) fprintf(stderr, 1193 gettext("%s: -d only valid from global" 1194 " zone\n"), cmdname); 1195 return (1); 1196 } 1197 break; 1198 case 'l': 1199 needlog = 0; 1200 break; 1201 case 'n': 1202 nosync = 1; 1203 break; 1204 case 'q': 1205 qflag = 1; 1206 break; 1207 case 'y': 1208 ttyn = NULL; 1209 break; 1210 #if defined(__i386) 1211 case 'f': 1212 fast_reboot = 1; 1213 break; 1214 case 'e': 1215 bename = optarg; 1216 break; 1217 #endif 1218 default: 1219 /* 1220 * TRANSLATION_NOTE 1221 * Don't translate the words "halt" or "reboot" 1222 */ 1223 (void) fprintf(stderr, usage, cmdname); 1224 return (1); 1225 } 1226 } 1227 1228 argc -= optind; 1229 argv += optind; 1230 1231 if (argc != 0) { 1232 if (fcn != AD_BOOT) { 1233 (void) fprintf(stderr, usage, cmdname); 1234 return (1); 1235 } 1236 1237 /* Gather the arguments into bootargs_buf. */ 1238 if (gather_args(argv, bootargs_buf, sizeof (bootargs_buf)) != 1239 0) { 1240 (void) fprintf(stderr, 1241 gettext("%s: Boot arguments too long.\n"), cmdname); 1242 return (1); 1243 } 1244 1245 mdep = (uintptr_t)bootargs_buf; 1246 } else { 1247 /* 1248 * Initialize it to 0 in case of fastboot, the buffer 1249 * will be used. 1250 */ 1251 bzero(bootargs_buf, sizeof (bootargs_buf)); 1252 } 1253 1254 if ((euid = geteuid()) != 0) { 1255 (void) fprintf(stderr, 1256 gettext("%s: permission denied\n"), cmdname); 1257 goto fail; 1258 } 1259 1260 /* 1261 * Check whether fast reboot is the default operating mode 1262 */ 1263 if (fcn == AD_BOOT && !fast_reboot) 1264 fast_reboot = is_fastboot_default(euid); 1265 1266 if (bename && !fast_reboot) { 1267 (void) fprintf(stderr, gettext("%s: -e only valid with -f\n"), 1268 cmdname); 1269 return (EINVAL); 1270 } 1271 1272 1273 /* 1274 * If fast reboot, do some sanity check on the argument 1275 */ 1276 if (fast_reboot) { 1277 int rc; 1278 int is_dryrun = 0; 1279 1280 if (zoneid != GLOBAL_ZONEID) { 1281 (void) fprintf(stderr, 1282 gettext("%s: fast reboot only valid from global" 1283 " zone\n"), cmdname); 1284 return (EINVAL); 1285 } 1286 1287 rc = parse_fastboot_args(bootargs_buf, &is_dryrun, 1288 bename, &failsafe); 1289 1290 /* 1291 * If dry run, or if arguments are invalid, return. 1292 */ 1293 if (is_dryrun) 1294 return (rc); 1295 else if (rc != 0) 1296 goto fail; 1297 1298 /* 1299 * For all the other errors, we continue on in case user 1300 * user want to force fast reboot. 1301 */ 1302 if (strlen(bootargs_buf) != 0) 1303 mdep = (uintptr_t)bootargs_buf; 1304 } 1305 1306 #if 0 /* For debugging */ 1307 if (mdep != NULL) 1308 (void) fprintf(stderr, "mdep = %s\n", (char *)mdep); 1309 #endif 1310 1311 if (fcn != AD_BOOT && ttyn != NULL && 1312 strncmp(ttyn, "/dev/term/", strlen("/dev/term/")) == 0) { 1313 /* 1314 * TRANSLATION_NOTE 1315 * Don't translate ``halt -y'' 1316 */ 1317 (void) fprintf(stderr, 1318 gettext("%s: dangerous on a dialup;"), cmdname); 1319 (void) fprintf(stderr, 1320 gettext("use ``%s -y'' if you are really sure\n"), cmdname); 1321 goto fail; 1322 } 1323 1324 if (needlog) { 1325 char *user = getlogin(); 1326 struct passwd *pw; 1327 char *tty; 1328 1329 openlog(cmdname, 0, LOG_AUTH); 1330 if (user == NULL && (pw = getpwuid(getuid())) != NULL) 1331 user = pw->pw_name; 1332 if (user == NULL) 1333 user = "root"; 1334 1335 tty = ttyname(1); 1336 1337 if (tty == NULL) 1338 syslog(LOG_CRIT, "initiated by %s", user); 1339 else 1340 syslog(LOG_CRIT, "initiated by %s on %s", user, tty); 1341 } 1342 1343 /* 1344 * We must assume success and log it before auditd is terminated. 1345 */ 1346 if (fcn == AD_BOOT) 1347 aval = audit_reboot_success(); 1348 else 1349 aval = audit_halt_success(); 1350 1351 if (aval == -1) { 1352 (void) fprintf(stderr, 1353 gettext("%s: can't turn off auditd\n"), cmdname); 1354 if (needlog) 1355 (void) sleep(5); /* Give syslogd time to record this */ 1356 } 1357 1358 (void) signal(SIGHUP, SIG_IGN); /* for remote connections */ 1359 1360 /* 1361 * We start to fork a bunch of zoneadms to halt any active zones. 1362 * This will proceed with halt in parallel until we call 1363 * check_zone_haltedness later on. 1364 */ 1365 if (zoneid == GLOBAL_ZONEID && cmd != A_DUMP) { 1366 need_check_zones = halt_zones(); 1367 } 1368 1369 /* sync boot archive in the global zone */ 1370 if (zoneid == GLOBAL_ZONEID && !nosync) { 1371 char *fast_argv[] = {"/sbin/bootadm", "-a", "update_all", 1372 "fastboot", NULL}; 1373 char *b_argv[] = {"/sbin/bootadm", "-a", "update_all", NULL}; 1374 1375 if (fast_reboot) 1376 r = posix_spawn(NULL, fast_argv[0], NULL, NULL, 1377 fast_argv, NULL); 1378 else 1379 r = posix_spawn(NULL, b_argv[0], NULL, NULL, b_argv, 1380 NULL); 1381 1382 /* if posix_spawn fails we emit a warning and continue rebooting */ 1383 1384 if (r != 0) 1385 (void) fprintf(stderr, gettext("%s: WARNING, unable to" 1386 "start boot archive update\n"), cmdname); 1387 else 1388 (void) wait(NULL); 1389 } 1390 1391 /* 1392 * If we're not forcing a crash dump, mark the system as quiescing for 1393 * smf(5)'s benefit, and idle the init process. 1394 */ 1395 if (cmd != A_DUMP) { 1396 if (direct_init(PCDSTOP) == -1) { 1397 /* 1398 * TRANSLATION_NOTE 1399 * Don't translate the word "init" 1400 */ 1401 (void) fprintf(stderr, 1402 gettext("%s: can't idle init\n"), cmdname); 1403 goto fail; 1404 } 1405 1406 if (creat(resetting, 0755) == -1) 1407 (void) fprintf(stderr, 1408 gettext("%s: could not create %s.\n"), 1409 cmdname, resetting); 1410 1411 /* 1412 * Stop all restarters so they do not try to restart services 1413 * that are terminated. 1414 */ 1415 stop_restarters(); 1416 1417 /* 1418 * Wait a little while for zones to shutdown. 1419 */ 1420 if (need_check_zones) { 1421 check_zones_haltedness(); 1422 1423 (void) fprintf(stderr, 1424 gettext("%s: Completing system halt.\n"), 1425 cmdname); 1426 } 1427 } 1428 1429 /* 1430 * Make sure we don't get stopped by a jobcontrol shell 1431 * once we start killing everybody. 1432 */ 1433 (void) signal(SIGTSTP, SIG_IGN); 1434 (void) signal(SIGTTIN, SIG_IGN); 1435 (void) signal(SIGTTOU, SIG_IGN); 1436 (void) signal(SIGTERM, SIG_IGN); 1437 1438 /* 1439 * If we're not forcing a crash dump, give everyone 5 seconds to 1440 * handle a SIGTERM and clean up properly. 1441 */ 1442 if (cmd != A_DUMP) { 1443 (void) kill(-1, SIGTERM); 1444 (void) sleep(5); 1445 } 1446 1447 (void) signal(SIGINT, SIG_IGN); 1448 1449 if (!qflag && !nosync) { 1450 struct utmpx wtmpx; 1451 1452 bzero(&wtmpx, sizeof (struct utmpx)); 1453 (void) strcpy(wtmpx.ut_line, "~"); 1454 (void) time(&wtmpx.ut_tv.tv_sec); 1455 1456 if (cmd == A_DUMP) 1457 (void) strcpy(wtmpx.ut_name, "crash dump"); 1458 else 1459 (void) strcpy(wtmpx.ut_name, "shutdown"); 1460 1461 (void) updwtmpx(WTMPX_FILE, &wtmpx); 1462 sync(); 1463 } 1464 1465 if (cmd == A_DUMP && nosync != 0) 1466 (void) uadmin(A_DUMP, AD_NOSYNC, NULL); 1467 1468 if (fast_reboot) { 1469 if (failsafe) 1470 (void) fprintf(stderr, "Fast reboot - failsafe.\n"); 1471 else 1472 (void) fprintf(stderr, "Fast reboot.\n"); 1473 1474 fcn = AD_FASTREBOOT; 1475 } 1476 1477 if (uadmin(cmd, fcn, mdep) == -1) 1478 (void) fprintf(stderr, "%s: uadmin failed: %s\n", 1479 cmdname, strerror(errno)); 1480 else 1481 (void) fprintf(stderr, "%s: uadmin unexpectedly returned 0\n", 1482 cmdname); 1483 1484 do { 1485 r = remove(resetting); 1486 } while (r != 0 && errno == EINTR); 1487 1488 if (r != 0 && errno != ENOENT) 1489 (void) fprintf(stderr, gettext("%s: could not remove %s.\n"), 1490 cmdname, resetting); 1491 1492 if (direct_init(PCRUN) == -1) { 1493 /* 1494 * TRANSLATION_NOTE 1495 * Don't translate the word "init" 1496 */ 1497 (void) fprintf(stderr, 1498 gettext("%s: can't resume init\n"), cmdname); 1499 } 1500 1501 continue_restarters(); 1502 1503 if (get_initpid() != -1) 1504 /* tell init to restate current level */ 1505 (void) kill(get_initpid(), SIGHUP); 1506 1507 fail: 1508 if (fcn == AD_BOOT) 1509 (void) audit_reboot_fail(); 1510 else 1511 (void) audit_halt_fail(); 1512 1513 if (fast_reboot) { 1514 if (bename) { 1515 (void) halt_exec(LUUMOUNT_PROG, "-n", bename, NULL); 1516 1517 } else if (strlen(fastboot_mounted) != 0) { 1518 (void) umount(fastboot_mounted); 1519 } 1520 } 1521 1522 return (1); 1523 } 1524