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 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 /* 27 * bootadm(1M) is a new utility for managing bootability of 28 * Solaris *Newboot* environments. It has two primary tasks: 29 * - Allow end users to manage bootability of Newboot Solaris instances 30 * - Provide services to other subsystems in Solaris (primarily Install) 31 */ 32 33 /* Headers */ 34 #include <stdio.h> 35 #include <errno.h> 36 #include <stdlib.h> 37 #include <string.h> 38 #include <unistd.h> 39 #include <sys/types.h> 40 #include <sys/stat.h> 41 #include <alloca.h> 42 #include <stdarg.h> 43 #include <limits.h> 44 #include <signal.h> 45 #include <sys/wait.h> 46 #include <sys/mnttab.h> 47 #include <sys/mntent.h> 48 #include <sys/statvfs.h> 49 #include <libnvpair.h> 50 #include <ftw.h> 51 #include <fcntl.h> 52 #include <strings.h> 53 #include <utime.h> 54 #include <sys/systeminfo.h> 55 #include <sys/dktp/fdisk.h> 56 #include <sys/param.h> 57 #include <dirent.h> 58 #include <ctype.h> 59 #include <libgen.h> 60 #include <sys/sysmacros.h> 61 #include <sys/elf.h> 62 #include <libscf.h> 63 #include <zlib.h> 64 #include <sys/lockfs.h> 65 #include <sys/filio.h> 66 #ifdef i386 67 #include <libfdisk.h> 68 #endif 69 70 #if !defined(_OPB) 71 #include <sys/ucode.h> 72 #endif 73 74 #include <pwd.h> 75 #include <grp.h> 76 #include <device_info.h> 77 #include <sys/vtoc.h> 78 #include <sys/efi_partition.h> 79 #include <regex.h> 80 #include <locale.h> 81 82 #include "message.h" 83 #include "bootadm.h" 84 85 #ifndef TEXT_DOMAIN 86 #define TEXT_DOMAIN "SUNW_OST_OSCMD" 87 #endif /* TEXT_DOMAIN */ 88 89 /* Type definitions */ 90 91 /* Primary subcmds */ 92 typedef enum { 93 BAM_MENU = 3, 94 BAM_ARCHIVE 95 } subcmd_t; 96 97 typedef enum { 98 OPT_ABSENT = 0, /* No option */ 99 OPT_REQ, /* option required */ 100 OPT_OPTIONAL /* option may or may not be present */ 101 } option_t; 102 103 typedef struct { 104 char *subcmd; 105 option_t option; 106 error_t (*handler)(); 107 int unpriv; /* is this an unprivileged command */ 108 } subcmd_defn_t; 109 110 #define LINE_INIT 0 /* lineNum initial value */ 111 #define ENTRY_INIT -1 /* entryNum initial value */ 112 #define ALL_ENTRIES -2 /* selects all boot entries */ 113 114 #define GRUB_DIR "/boot/grub" 115 #define GRUB_STAGE2 GRUB_DIR "/stage2" 116 #define GRUB_MENU "/boot/grub/menu.lst" 117 #define MENU_TMP "/boot/grub/menu.lst.tmp" 118 #define GRUB_BACKUP_MENU "/etc/lu/GRUB_backup_menu" 119 #define RAMDISK_SPECIAL "/ramdisk" 120 #define STUBBOOT "/stubboot" 121 #define MULTIBOOT "/platform/i86pc/multiboot" 122 #define GRUBSIGN_DIR "/boot/grub/bootsign" 123 #define GRUBSIGN_BACKUP "/etc/bootsign" 124 #define GRUBSIGN_UFS_PREFIX "rootfs" 125 #define GRUBSIGN_ZFS_PREFIX "pool_" 126 #define GRUBSIGN_LU_PREFIX "BE_" 127 #define UFS_SIGNATURE_LIST "/var/run/grub_ufs_signatures" 128 #define ZFS_LEGACY_MNTPT "/tmp/bootadm_mnt_zfs_legacy" 129 130 #define BOOTADM_RDONLY_TEST "BOOTADM_RDONLY_TEST" 131 132 /* lock related */ 133 #define BAM_LOCK_FILE "/var/run/bootadm.lock" 134 #define LOCK_FILE_PERMS (S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH) 135 136 #define CREATE_RAMDISK "boot/solaris/bin/create_ramdisk" 137 #define CREATE_DISKMAP "boot/solaris/bin/create_diskmap" 138 #define EXTRACT_BOOT_FILELIST "boot/solaris/bin/extract_boot_filelist" 139 #define GRUBDISK_MAP "/var/run/solaris_grubdisk.map" 140 141 #define GRUB_slice "/etc/lu/GRUB_slice" 142 #define GRUB_root "/etc/lu/GRUB_root" 143 #define GRUB_fdisk "/etc/lu/GRUB_fdisk" 144 #define GRUB_fdisk_target "/etc/lu/GRUB_fdisk_target" 145 #define FINDROOT_INSTALLGRUB "/etc/lu/installgrub.findroot" 146 #define LULIB "/usr/lib/lu/lulib" 147 #define LULIB_PROPAGATE_FILE "lulib_propagate_file" 148 #define CKSUM "/usr/bin/cksum" 149 #define LU_MENU_CKSUM "/etc/lu/menu.cksum" 150 #define BOOTADM "/sbin/bootadm" 151 152 #define INSTALLGRUB "/sbin/installgrub" 153 #define STAGE1 "/boot/grub/stage1" 154 #define STAGE2 "/boot/grub/stage2" 155 156 typedef enum zfs_mnted { 157 ZFS_MNT_ERROR = -1, 158 LEGACY_MOUNTED = 1, 159 LEGACY_ALREADY, 160 ZFS_MOUNTED, 161 ZFS_ALREADY 162 } zfs_mnted_t; 163 164 /* 165 * The following two defines are used to detect and create the correct 166 * boot archive when safemode patching is underway. LOFS_PATCH_FILE is a 167 * contracted private interface between bootadm and the install 168 * consolidation. It is set by pdo.c when a patch with SUNW_PATCH_SAFEMODE 169 * is applied. 170 */ 171 #define LOFS_PATCH_FILE "/var/run/.patch_loopback_mode" 172 #define LOFS_PATCH_MNT "/var/run/.patch_root_loopbackmnt" 173 174 /* 175 * Default file attributes 176 */ 177 #define DEFAULT_DEV_MODE 0644 /* default permissions */ 178 #define DEFAULT_DEV_UID 0 /* user root */ 179 #define DEFAULT_DEV_GID 3 /* group sys */ 180 181 /* 182 * Menu related 183 * menu_cmd_t and menu_cmds must be kept in sync 184 */ 185 char *menu_cmds[] = { 186 "default", /* DEFAULT_CMD */ 187 "timeout", /* TIMEOUT_CMD */ 188 "title", /* TITLE_CMD */ 189 "root", /* ROOT_CMD */ 190 "kernel", /* KERNEL_CMD */ 191 "kernel$", /* KERNEL_DOLLAR_CMD */ 192 "module", /* MODULE_CMD */ 193 "module$", /* MODULE_DOLLAR_CMD */ 194 " ", /* SEP_CMD */ 195 "#", /* COMMENT_CMD */ 196 "chainloader", /* CHAINLOADER_CMD */ 197 "args", /* ARGS_CMD */ 198 "findroot", /* FINDROOT_CMD */ 199 "bootfs", /* BOOTFS_CMD */ 200 NULL 201 }; 202 203 #define OPT_ENTRY_NUM "entry" 204 205 /* 206 * exec_cmd related 207 */ 208 typedef struct { 209 line_t *head; 210 line_t *tail; 211 } filelist_t; 212 213 #define BOOT_FILE_LIST "boot/solaris/filelist.ramdisk" 214 #define ETC_FILE_LIST "etc/boot/solaris/filelist.ramdisk" 215 216 #define FILE_STAT "boot/solaris/filestat.ramdisk" 217 #define FILE_STAT_TMP "boot/solaris/filestat.ramdisk.tmp" 218 #define DIR_PERMS (S_IRWXU|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH) 219 #define FILE_STAT_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH) 220 221 #define FILE_STAT_TIMESTAMP "boot/solaris/timestamp.cache" 222 223 /* Globals */ 224 int bam_verbose; 225 int bam_force; 226 int bam_debug; 227 static char *prog; 228 static subcmd_t bam_cmd; 229 static char *bam_root; 230 static int bam_rootlen; 231 static int bam_root_readonly; 232 static int bam_alt_root; 233 static int bam_extend = 0; 234 static int bam_purge = 0; 235 static char *bam_subcmd; 236 static char *bam_opt; 237 static char **bam_argv; 238 static int bam_argc; 239 static int bam_check; 240 static int bam_saved_check; 241 static int bam_smf_check; 242 static int bam_lock_fd = -1; 243 static int bam_zfs; 244 static char rootbuf[PATH_MAX] = "/"; 245 static int bam_update_all; 246 static int bam_alt_platform; 247 static char *bam_platform; 248 static char *bam_home_env = NULL; 249 250 /* function prototypes */ 251 static void parse_args_internal(int, char *[]); 252 static void parse_args(int, char *argv[]); 253 static error_t bam_menu(char *, char *, int, char *[]); 254 static error_t bam_archive(char *, char *); 255 256 static void bam_lock(void); 257 static void bam_unlock(void); 258 259 static int exec_cmd(char *, filelist_t *); 260 static error_t read_globals(menu_t *, char *, char *, int); 261 static int menu_on_bootdisk(char *os_root, char *menu_root); 262 static menu_t *menu_read(char *); 263 static error_t menu_write(char *, menu_t *); 264 static void linelist_free(line_t *); 265 static void menu_free(menu_t *); 266 static void filelist_free(filelist_t *); 267 static error_t list2file(char *, char *, char *, line_t *); 268 static error_t list_entry(menu_t *, char *, char *); 269 static error_t list_setting(menu_t *, char *, char *); 270 static error_t delete_all_entries(menu_t *, char *, char *); 271 static error_t update_entry(menu_t *mp, char *menu_root, char *opt); 272 static error_t update_temp(menu_t *mp, char *dummy, char *opt); 273 274 static error_t update_archive(char *, char *); 275 static error_t list_archive(char *, char *); 276 static error_t update_all(char *, char *); 277 static error_t read_list(char *, filelist_t *); 278 static error_t set_option(menu_t *, char *, char *); 279 static error_t set_kernel(menu_t *, menu_cmd_t, char *, char *, size_t); 280 static error_t get_kernel(menu_t *, menu_cmd_t, char *, size_t); 281 static char *expand_path(const char *); 282 283 static long s_strtol(char *); 284 static int s_fputs(char *, FILE *); 285 286 static int is_zfs(char *root); 287 static int is_ufs(char *root); 288 static int is_pcfs(char *root); 289 static int is_amd64(void); 290 static char *get_machine(void); 291 static void append_to_flist(filelist_t *, char *); 292 static char *mount_top_dataset(char *pool, zfs_mnted_t *mnted); 293 static int umount_top_dataset(char *pool, zfs_mnted_t mnted, char *mntpt); 294 static int ufs_add_to_sign_list(char *sign); 295 static error_t synchronize_BE_menu(void); 296 297 #if !defined(_OPB) 298 static void ucode_install(); 299 #endif 300 301 /* Menu related sub commands */ 302 static subcmd_defn_t menu_subcmds[] = { 303 "set_option", OPT_ABSENT, set_option, 0, /* PUB */ 304 "list_entry", OPT_OPTIONAL, list_entry, 1, /* PUB */ 305 "delete_all_entries", OPT_ABSENT, delete_all_entries, 0, /* PVT */ 306 "update_entry", OPT_REQ, update_entry, 0, /* menu */ 307 "update_temp", OPT_OPTIONAL, update_temp, 0, /* reboot */ 308 "upgrade", OPT_ABSENT, upgrade_menu, 0, /* menu */ 309 "list_setting", OPT_OPTIONAL, list_setting, 1, /* menu */ 310 "disable_hypervisor", OPT_ABSENT, cvt_to_metal, 0, /* menu */ 311 "enable_hypervisor", OPT_ABSENT, cvt_to_hyper, 0, /* menu */ 312 NULL, 0, NULL, 0 /* must be last */ 313 }; 314 315 /* Archive related sub commands */ 316 static subcmd_defn_t arch_subcmds[] = { 317 "update", OPT_ABSENT, update_archive, 0, /* PUB */ 318 "update_all", OPT_ABSENT, update_all, 0, /* PVT */ 319 "list", OPT_OPTIONAL, list_archive, 1, /* PUB */ 320 NULL, 0, NULL, 0 /* must be last */ 321 }; 322 323 enum dircache_copy_opt { 324 FILE32 = 0, 325 FILE64, 326 CACHEDIR_NUM 327 }; 328 329 /* 330 * Directory specific flags: 331 * NEED_UPDATE : the specified archive needs to be updated 332 * NO_MULTI : don't extend the specified archive, but recreate it 333 */ 334 #define NEED_UPDATE 0x00000001 335 #define NO_MULTI 0x00000002 336 337 #define set_dir_flag(id, f) (walk_arg.dirinfo[id].flags |= f) 338 #define unset_dir_flag(id, f) (walk_arg.dirinfo[id].flags &= ~f) 339 #define is_dir_flag_on(id, f) (walk_arg.dirinfo[id].flags & f ? 1 : 0) 340 341 #define get_cachedir(id) (walk_arg.dirinfo[id].cdir_path) 342 #define get_updatedir(id) (walk_arg.dirinfo[id].update_path) 343 #define get_count(id) (walk_arg.dirinfo[id].count) 344 #define has_cachedir(id) (walk_arg.dirinfo[id].has_dir) 345 #define set_dir_present(id) (walk_arg.dirinfo[id].has_dir = 1) 346 347 /* 348 * dirinfo_t (specific cache directory information): 349 * cdir_path: path to the archive cache directory 350 * update_path: path to the update directory (contains the files that will be 351 * used to extend the archive) 352 * has_dir: the specified cache directory is active 353 * count: the number of files to update 354 * flags: directory specific flags 355 */ 356 typedef struct _dirinfo { 357 char cdir_path[PATH_MAX]; 358 char update_path[PATH_MAX]; 359 int has_dir; 360 int count; 361 int flags; 362 } dirinfo_t; 363 364 /* 365 * Update flags: 366 * NEED_CACHE_DIR : cache directory is missing and needs to be created 367 * IS_SPARC_TARGET : the target mountpoint is a SPARC environment 368 * UPDATE_ERROR : an error occourred while traversing the list of files 369 * RDONLY_FSCHK : the target filesystem is read-only 370 * RAMDSK_FSCHK : the target filesystem is on a ramdisk 371 */ 372 #define NEED_CACHE_DIR 0x00000001 373 #define IS_SPARC_TARGET 0x00000002 374 #define UPDATE_ERROR 0x00000004 375 #define RDONLY_FSCHK 0x00000008 376 #define INVALIDATE_CACHE 0x00000010 377 378 #define is_flag_on(flag) (walk_arg.update_flags & flag ? 1 : 0) 379 #define set_flag(flag) (walk_arg.update_flags |= flag) 380 #define unset_flag(flag) (walk_arg.update_flags &= ~flag) 381 382 /* 383 * struct walk_arg : 384 * update_flags: flags related to the current updating process 385 * new_nvlp/old_nvlp: new and old list of archive-files / attributes pairs 386 * sparcfile: list of file paths for mkisofs -path-list (SPARC only) 387 */ 388 static struct { 389 int update_flags; 390 nvlist_t *new_nvlp; 391 nvlist_t *old_nvlp; 392 FILE *sparcfile; 393 dirinfo_t dirinfo[CACHEDIR_NUM]; 394 } walk_arg; 395 396 struct safefile { 397 char *name; 398 struct safefile *next; 399 }; 400 401 static struct safefile *safefiles = NULL; 402 #define NEED_UPDATE_FILE "/etc/svc/volatile/boot_archive_needs_update" 403 404 /* Thanks growisofs */ 405 #define CD_BLOCK ((off64_t)2048) 406 #define VOLDESC_OFF 16 407 #define DVD_BLOCK (32*1024) 408 #define MAX_IVDs 16 409 410 struct iso_pdesc { 411 unsigned char type [1]; 412 unsigned char id [5]; 413 unsigned char void1 [80-5-1]; 414 unsigned char volume_space_size [8]; 415 unsigned char void2 [2048-80-8]; 416 }; 417 418 /* 419 * COUNT_MAX: maximum number of changed files to justify a multisession update 420 * BA_SIZE_MAX: maximum size of the boot_archive to justify a multisession 421 * update 422 */ 423 #define COUNT_MAX 50 424 #define BA_SIZE_MAX (50 * 1024 * 1024) 425 426 #define bam_nowrite() (bam_check || bam_smf_check) 427 428 static int sync_menu = 1; /* whether we need to sync the BE menus */ 429 430 static void 431 usage(void) 432 { 433 (void) fprintf(stderr, "USAGE:\n"); 434 435 /* archive usage */ 436 (void) fprintf(stderr, 437 "\t%s update-archive [-vn] [-R altroot [-p platform>]]\n", prog); 438 (void) fprintf(stderr, 439 "\t%s list-archive [-R altroot [-p platform>]]\n", prog); 440 #if !defined(_OPB) 441 /* x86 only */ 442 (void) fprintf(stderr, "\t%s set-menu [-R altroot] key=value\n", prog); 443 (void) fprintf(stderr, "\t%s list-menu [-R altroot]\n", prog); 444 #endif 445 } 446 447 /* 448 * Best effort attempt to restore the $HOME value. 449 */ 450 static void 451 restore_env() 452 { 453 char home_env[PATH_MAX]; 454 455 if (bam_home_env) { 456 (void) snprintf(home_env, sizeof (home_env), "HOME=%s", 457 bam_home_env); 458 (void) putenv(home_env); 459 } 460 } 461 462 463 #define SLEEP_TIME 5 464 #define MAX_TRIES 4 465 466 /* 467 * Sanitize the environment in which bootadm will execute its sub-processes 468 * (ex. mkisofs). This is done to prevent those processes from attempting 469 * to access files (ex. .mkisofsrc) or stat paths that might be on NFS 470 * or, potentially, insecure. 471 */ 472 static void 473 sanitize_env() 474 { 475 int stry = 0; 476 477 /* don't depend on caller umask */ 478 (void) umask(0022); 479 480 /* move away from a potential unsafe current working directory */ 481 while (chdir("/") == -1) { 482 if (errno != EINTR) { 483 bam_print("WARNING: unable to chdir to /"); 484 break; 485 } 486 } 487 488 bam_home_env = getenv("HOME"); 489 while (bam_home_env != NULL && putenv("HOME=/") == -1) { 490 if (errno == ENOMEM) { 491 /* retry no more than MAX_TRIES times */ 492 if (++stry > MAX_TRIES) { 493 bam_print("WARNING: unable to recover from " 494 "system memory pressure... aborting \n"); 495 bam_exit(EXIT_FAILURE); 496 } 497 /* memory is tight, try to sleep */ 498 bam_print("Attempting to recover from memory pressure: " 499 "sleeping for %d seconds\n", SLEEP_TIME * stry); 500 (void) sleep(SLEEP_TIME * stry); 501 } else { 502 bam_print("WARNING: unable to sanitize HOME\n"); 503 } 504 } 505 } 506 507 int 508 main(int argc, char *argv[]) 509 { 510 error_t ret; 511 512 (void) setlocale(LC_ALL, ""); 513 (void) textdomain(TEXT_DOMAIN); 514 515 if ((prog = strrchr(argv[0], '/')) == NULL) { 516 prog = argv[0]; 517 } else { 518 prog++; 519 } 520 521 INJECT_ERROR1("ASSERT_ON", assert(0)) 522 523 sanitize_env(); 524 525 parse_args(argc, argv); 526 527 switch (bam_cmd) { 528 case BAM_MENU: 529 ret = bam_menu(bam_subcmd, bam_opt, bam_argc, bam_argv); 530 break; 531 case BAM_ARCHIVE: 532 ret = bam_archive(bam_subcmd, bam_opt); 533 break; 534 default: 535 usage(); 536 bam_exit(1); 537 } 538 539 if (ret != BAM_SUCCESS) 540 bam_exit((ret == BAM_NOCHANGE) ? 2 : 1); 541 542 bam_unlock(); 543 return (0); 544 } 545 546 /* 547 * Equivalence of public and internal commands: 548 * update-archive -- -a update 549 * list-archive -- -a list 550 * set-menu -- -m set_option 551 * list-menu -- -m list_entry 552 * update-menu -- -m update_entry 553 */ 554 static struct cmd_map { 555 char *bam_cmdname; 556 int bam_cmd; 557 char *bam_subcmd; 558 } cmd_map[] = { 559 { "update-archive", BAM_ARCHIVE, "update"}, 560 { "list-archive", BAM_ARCHIVE, "list"}, 561 { "set-menu", BAM_MENU, "set_option"}, 562 { "list-menu", BAM_MENU, "list_entry"}, 563 { "update-menu", BAM_MENU, "update_entry"}, 564 { NULL, 0, NULL} 565 }; 566 567 /* 568 * Commands syntax published in bootadm(1M) are parsed here 569 */ 570 static void 571 parse_args(int argc, char *argv[]) 572 { 573 struct cmd_map *cmp = cmd_map; 574 575 /* command conforming to the final spec */ 576 if (argc > 1 && argv[1][0] != '-') { 577 /* 578 * Map commands to internal table. 579 */ 580 while (cmp->bam_cmdname) { 581 if (strcmp(argv[1], cmp->bam_cmdname) == 0) { 582 bam_cmd = cmp->bam_cmd; 583 bam_subcmd = cmp->bam_subcmd; 584 break; 585 } 586 cmp++; 587 } 588 if (cmp->bam_cmdname == NULL) { 589 usage(); 590 bam_exit(1); 591 } 592 argc--; 593 argv++; 594 } 595 596 parse_args_internal(argc, argv); 597 } 598 599 /* 600 * A combination of public and private commands are parsed here. 601 * The internal syntax and the corresponding functionality are: 602 * -a update -- update-archive 603 * -a list -- list-archive 604 * -a update-all -- (reboot to sync all mnted OS archive) 605 * -m update_entry -- update-menu 606 * -m list_entry -- list-menu 607 * -m update_temp -- (reboot -- [boot-args]) 608 * -m delete_all_entries -- (called from install) 609 * -m enable_hypervisor [args] -- cvt_to_hyper 610 * -m disable_hypervisor -- cvt_to_metal 611 * -m list_setting [entry] [value] -- list_setting 612 * 613 * A set of private flags is there too: 614 * -F -- purge the cache directories and rebuild them 615 * -e -- use the (faster) archive update approach (used by 616 * reboot) 617 */ 618 static void 619 parse_args_internal(int argc, char *argv[]) 620 { 621 int c, error; 622 extern char *optarg; 623 extern int optind, opterr; 624 625 /* Suppress error message from getopt */ 626 opterr = 0; 627 628 error = 0; 629 while ((c = getopt(argc, argv, "a:d:fm:no:veFCR:p:XZ")) != -1) { 630 switch (c) { 631 case 'a': 632 if (bam_cmd) { 633 error = 1; 634 bam_error(MULT_CMDS, c); 635 } 636 bam_cmd = BAM_ARCHIVE; 637 bam_subcmd = optarg; 638 break; 639 case 'd': 640 if (bam_debug) { 641 error = 1; 642 bam_error(DUP_OPT, c); 643 } 644 bam_debug = s_strtol(optarg); 645 break; 646 case 'f': 647 bam_force = 1; 648 break; 649 case 'F': 650 bam_purge = 1; 651 break; 652 case 'm': 653 if (bam_cmd) { 654 error = 1; 655 bam_error(MULT_CMDS, c); 656 } 657 bam_cmd = BAM_MENU; 658 bam_subcmd = optarg; 659 break; 660 case 'n': 661 bam_check = 1; 662 /* 663 * We save the original value of bam_check. The new 664 * approach in case of a read-only filesystem is to 665 * behave as a check, so we need a way to restore the 666 * original value after the evaluation of the read-only 667 * filesystem has been done. 668 * Even if we don't allow at the moment a check with 669 * update_all, this approach is more robust than 670 * simply resetting bam_check to zero. 671 */ 672 bam_saved_check = 1; 673 break; 674 case 'o': 675 if (bam_opt) { 676 error = 1; 677 bam_error(DUP_OPT, c); 678 } 679 bam_opt = optarg; 680 break; 681 case 'v': 682 bam_verbose = 1; 683 break; 684 case 'C': 685 bam_smf_check = 1; 686 break; 687 case 'R': 688 if (bam_root) { 689 error = 1; 690 bam_error(DUP_OPT, c); 691 break; 692 } else if (realpath(optarg, rootbuf) == NULL) { 693 error = 1; 694 bam_error(CANT_RESOLVE, optarg, 695 strerror(errno)); 696 break; 697 } 698 bam_alt_root = 1; 699 bam_root = rootbuf; 700 bam_rootlen = strlen(rootbuf); 701 break; 702 case 'p': 703 bam_alt_platform = 1; 704 bam_platform = optarg; 705 if ((strcmp(bam_platform, "i86pc") != 0) && 706 (strcmp(bam_platform, "sun4u") != 0) && 707 (strcmp(bam_platform, "sun4v") != 0)) { 708 error = 1; 709 bam_error(INVALID_PLAT, bam_platform); 710 } 711 break; 712 case 'X': 713 bam_is_hv = BAM_HV_PRESENT; 714 break; 715 case 'Z': 716 bam_zfs = 1; 717 break; 718 case 'e': 719 bam_extend = 1; 720 break; 721 case '?': 722 error = 1; 723 bam_error(BAD_OPT, optopt); 724 break; 725 default : 726 error = 1; 727 bam_error(BAD_OPT, c); 728 break; 729 } 730 } 731 732 /* 733 * An alternate platform requires an alternate root 734 */ 735 if (bam_alt_platform && bam_alt_root == 0) { 736 usage(); 737 bam_exit(0); 738 } 739 740 /* 741 * A command option must be specfied 742 */ 743 if (!bam_cmd) { 744 if (bam_opt && strcmp(bam_opt, "all") == 0) { 745 usage(); 746 bam_exit(0); 747 } 748 bam_error(NEED_CMD); 749 error = 1; 750 } 751 752 if (error) { 753 usage(); 754 bam_exit(1); 755 } 756 757 if (optind > argc) { 758 bam_error(INT_ERROR, "parse_args"); 759 bam_exit(1); 760 } else if (optind < argc) { 761 bam_argv = &argv[optind]; 762 bam_argc = argc - optind; 763 } 764 765 /* 766 * -n implies verbose mode 767 */ 768 if (bam_check) 769 bam_verbose = 1; 770 } 771 772 static error_t 773 check_subcmd_and_options( 774 char *subcmd, 775 char *opt, 776 subcmd_defn_t *table, 777 error_t (**fp)()) 778 { 779 int i; 780 781 if (subcmd == NULL) { 782 bam_error(NEED_SUBCMD); 783 return (BAM_ERROR); 784 } 785 786 if (strcmp(subcmd, "set_option") == 0) { 787 if (bam_argc == 0 || bam_argv == NULL || bam_argv[0] == NULL) { 788 bam_error(MISSING_ARG); 789 usage(); 790 return (BAM_ERROR); 791 } else if (bam_argc > 1 || bam_argv[1] != NULL) { 792 bam_error(TRAILING_ARGS); 793 usage(); 794 return (BAM_ERROR); 795 } 796 } else if (strcmp(subcmd, "update_all") == 0) { 797 /* 798 * The only option we accept for the "update_all" 799 * subcmd is "fastboot". 800 */ 801 if (bam_argc > 1 || (bam_argc == 1 && 802 strcmp(bam_argv[0], "fastboot") != 0)) { 803 bam_error(TRAILING_ARGS); 804 usage(); 805 return (BAM_ERROR); 806 } 807 if (bam_argc == 1) 808 sync_menu = 0; 809 } else if (((strcmp(subcmd, "enable_hypervisor") != 0) && 810 (strcmp(subcmd, "list_setting") != 0)) && (bam_argc || bam_argv)) { 811 /* 812 * Of the remaining subcommands, only "enable_hypervisor" and 813 * "list_setting" take trailing arguments. 814 */ 815 bam_error(TRAILING_ARGS); 816 usage(); 817 return (BAM_ERROR); 818 } 819 820 if (bam_root == NULL) { 821 bam_root = rootbuf; 822 bam_rootlen = 1; 823 } 824 825 /* verify that subcmd is valid */ 826 for (i = 0; table[i].subcmd != NULL; i++) { 827 if (strcmp(table[i].subcmd, subcmd) == 0) 828 break; 829 } 830 831 if (table[i].subcmd == NULL) { 832 bam_error(INVALID_SUBCMD, subcmd); 833 return (BAM_ERROR); 834 } 835 836 if (table[i].unpriv == 0 && geteuid() != 0) { 837 bam_error(MUST_BE_ROOT); 838 return (BAM_ERROR); 839 } 840 841 /* 842 * Currently only privileged commands need a lock 843 */ 844 if (table[i].unpriv == 0) 845 bam_lock(); 846 847 /* subcmd verifies that opt is appropriate */ 848 if (table[i].option != OPT_OPTIONAL) { 849 if ((table[i].option == OPT_REQ) ^ (opt != NULL)) { 850 if (opt) 851 bam_error(NO_OPT_REQ, subcmd); 852 else 853 bam_error(MISS_OPT, subcmd); 854 return (BAM_ERROR); 855 } 856 } 857 858 *fp = table[i].handler; 859 860 return (BAM_SUCCESS); 861 } 862 863 /* 864 * NOTE: A single "/" is also considered a trailing slash and will 865 * be deleted. 866 */ 867 static void 868 elide_trailing_slash(const char *src, char *dst, size_t dstsize) 869 { 870 size_t dstlen; 871 872 assert(src); 873 assert(dst); 874 875 (void) strlcpy(dst, src, dstsize); 876 877 dstlen = strlen(dst); 878 if (dst[dstlen - 1] == '/') { 879 dst[dstlen - 1] = '\0'; 880 } 881 } 882 883 static int 884 is_safe_exec(char *path) 885 { 886 struct stat sb; 887 888 if (lstat(path, &sb) != 0) { 889 bam_error(STAT_FAIL, path, strerror(errno)); 890 return (BAM_ERROR); 891 } 892 893 if (!S_ISREG(sb.st_mode)) { 894 bam_error(PATH_EXEC_LINK, path); 895 return (BAM_ERROR); 896 } 897 898 if (sb.st_uid != getuid()) { 899 bam_error(PATH_EXEC_OWNER, path, getuid()); 900 return (BAM_ERROR); 901 } 902 903 if (sb.st_mode & S_IWOTH || sb.st_mode & S_IWGRP) { 904 bam_error(PATH_EXEC_PERMS, path); 905 return (BAM_ERROR); 906 } 907 908 return (BAM_SUCCESS); 909 } 910 911 static error_t 912 list_setting(menu_t *mp, char *which, char *setting) 913 { 914 line_t *lp; 915 entry_t *ent; 916 917 char *p = which; 918 int entry; 919 920 int found; 921 922 assert(which); 923 assert(setting); 924 925 if (*which != NULL) { 926 /* 927 * If "which" is not a number, assume it's a setting we want 928 * to look for and so set up the routine to look for "which" 929 * in the default entry. 930 */ 931 while (*p != NULL) 932 if (!(isdigit((int)*p++))) { 933 setting = which; 934 which = mp->curdefault->arg; 935 break; 936 } 937 } else { 938 which = mp->curdefault->arg; 939 } 940 941 entry = atoi(which); 942 943 for (ent = mp->entries; ((ent != NULL) && (ent->entryNum != entry)); 944 ent = ent->next) 945 ; 946 947 if (!ent) { 948 bam_error(NO_MATCH_ENTRY); 949 return (BAM_ERROR); 950 } 951 952 found = (*setting == NULL); 953 954 for (lp = ent->start; lp != NULL; lp = lp->next) { 955 if ((*setting == NULL) && (lp->flags != BAM_COMMENT)) 956 bam_print(PRINT, lp->line); 957 else if (strcmp(setting, lp->cmd) == 0) { 958 bam_print(PRINT, lp->arg); 959 found = 1; 960 } 961 962 if (lp == ent->end) 963 break; 964 } 965 966 if (!found) { 967 bam_error(NO_MATCH_ENTRY); 968 return (BAM_ERROR); 969 } 970 971 return (BAM_SUCCESS); 972 } 973 974 static error_t 975 bam_menu(char *subcmd, char *opt, int largc, char *largv[]) 976 { 977 error_t ret; 978 char menu_path[PATH_MAX]; 979 char clean_menu_root[PATH_MAX]; 980 char path[PATH_MAX]; 981 menu_t *menu; 982 char menu_root[PATH_MAX]; 983 struct stat sb; 984 error_t (*f)(menu_t *mp, char *menu_path, char *opt); 985 char *special; 986 char *pool = NULL; 987 zfs_mnted_t zmnted; 988 char *zmntpt; 989 char *osdev; 990 char *osroot; 991 const char *fcn = "bam_menu()"; 992 993 /* 994 * Menu sub-command only applies to GRUB (i.e. x86) 995 */ 996 if (!is_grub(bam_alt_root ? bam_root : "/")) { 997 bam_error(NOT_GRUB_BOOT); 998 return (BAM_ERROR); 999 } 1000 1001 /* 1002 * Check arguments 1003 */ 1004 ret = check_subcmd_and_options(subcmd, opt, menu_subcmds, &f); 1005 if (ret == BAM_ERROR) { 1006 return (BAM_ERROR); 1007 } 1008 1009 assert(bam_root); 1010 1011 (void) strlcpy(menu_root, bam_root, sizeof (menu_root)); 1012 osdev = osroot = NULL; 1013 1014 if (strcmp(subcmd, "update_entry") == 0) { 1015 assert(opt); 1016 1017 osdev = strtok(opt, ","); 1018 assert(osdev); 1019 osroot = strtok(NULL, ","); 1020 if (osroot) { 1021 /* fixup bam_root so that it points at osroot */ 1022 if (realpath(osroot, rootbuf) == NULL) { 1023 bam_error(CANT_RESOLVE, osroot, 1024 strerror(errno)); 1025 return (BAM_ERROR); 1026 } 1027 bam_alt_root = 1; 1028 bam_root = rootbuf; 1029 bam_rootlen = strlen(rootbuf); 1030 } 1031 } 1032 1033 /* 1034 * We support menu on PCFS (under certain conditions), but 1035 * not the OS root 1036 */ 1037 if (is_pcfs(bam_root)) { 1038 bam_error(PCFS_ROOT_NOTSUP, bam_root); 1039 return (BAM_ERROR); 1040 } 1041 1042 if (stat(menu_root, &sb) == -1) { 1043 bam_error(CANNOT_LOCATE_GRUB_MENU); 1044 return (BAM_ERROR); 1045 } 1046 1047 BAM_DPRINTF((D_MENU_ROOT, fcn, menu_root)); 1048 1049 /* 1050 * We no longer use the GRUB slice file. If it exists, then 1051 * the user is doing something that is unsupported (such as 1052 * standard upgrading an old Live Upgrade BE). If that 1053 * happens, mimic existing behavior i.e. pretend that it is 1054 * not a BE. Emit a warning though. 1055 */ 1056 if (bam_alt_root) { 1057 (void) snprintf(path, sizeof (path), "%s%s", bam_root, 1058 GRUB_slice); 1059 } else { 1060 (void) snprintf(path, sizeof (path), "%s", GRUB_slice); 1061 } 1062 1063 if (bam_verbose && stat(path, &sb) == 0) 1064 bam_error(GRUB_SLICE_FILE_EXISTS, path); 1065 1066 if (is_zfs(menu_root)) { 1067 assert(strcmp(menu_root, bam_root) == 0); 1068 special = get_special(menu_root); 1069 INJECT_ERROR1("Z_MENU_GET_SPECIAL", special = NULL); 1070 if (special == NULL) { 1071 bam_error(CANT_FIND_SPECIAL, menu_root); 1072 return (BAM_ERROR); 1073 } 1074 pool = strtok(special, "/"); 1075 INJECT_ERROR1("Z_MENU_GET_POOL", pool = NULL); 1076 if (pool == NULL) { 1077 free(special); 1078 bam_error(CANT_FIND_POOL, menu_root); 1079 return (BAM_ERROR); 1080 } 1081 BAM_DPRINTF((D_Z_MENU_GET_POOL_FROM_SPECIAL, fcn, pool)); 1082 1083 zmntpt = mount_top_dataset(pool, &zmnted); 1084 INJECT_ERROR1("Z_MENU_MOUNT_TOP_DATASET", zmntpt = NULL); 1085 if (zmntpt == NULL) { 1086 bam_error(CANT_MOUNT_POOL_DATASET, pool); 1087 free(special); 1088 return (BAM_ERROR); 1089 } 1090 BAM_DPRINTF((D_Z_GET_MENU_MOUNT_TOP_DATASET, fcn, zmntpt)); 1091 1092 (void) strlcpy(menu_root, zmntpt, sizeof (menu_root)); 1093 BAM_DPRINTF((D_Z_GET_MENU_MENU_ROOT, fcn, menu_root)); 1094 } 1095 1096 elide_trailing_slash(menu_root, clean_menu_root, 1097 sizeof (clean_menu_root)); 1098 1099 BAM_DPRINTF((D_CLEAN_MENU_ROOT, fcn, clean_menu_root)); 1100 1101 (void) strlcpy(menu_path, clean_menu_root, sizeof (menu_path)); 1102 (void) strlcat(menu_path, GRUB_MENU, sizeof (menu_path)); 1103 1104 BAM_DPRINTF((D_MENU_PATH, fcn, menu_path)); 1105 1106 /* 1107 * If listing the menu, display the menu location 1108 */ 1109 if (strcmp(subcmd, "list_entry") == 0) 1110 bam_print(GRUB_MENU_PATH, menu_path); 1111 1112 if ((menu = menu_read(menu_path)) == NULL) { 1113 bam_error(CANNOT_LOCATE_GRUB_MENU_FILE, menu_path); 1114 if (special != NULL) 1115 free(special); 1116 1117 return (BAM_ERROR); 1118 } 1119 1120 /* 1121 * We already checked the following case in 1122 * check_subcmd_and_suboptions() above. Complete the 1123 * final step now. 1124 */ 1125 if (strcmp(subcmd, "set_option") == 0) { 1126 assert(largc == 1 && largv[0] && largv[1] == NULL); 1127 opt = largv[0]; 1128 } else if ((strcmp(subcmd, "enable_hypervisor") != 0) && 1129 (strcmp(subcmd, "list_setting") != 0)) { 1130 assert(largc == 0 && largv == NULL); 1131 } 1132 1133 ret = get_boot_cap(bam_root); 1134 if (ret != BAM_SUCCESS) { 1135 BAM_DPRINTF((D_BOOT_GET_CAP_FAILED, fcn)); 1136 goto out; 1137 } 1138 1139 /* 1140 * Once the sub-cmd handler has run 1141 * only the line field is guaranteed to have valid values 1142 */ 1143 if (strcmp(subcmd, "update_entry") == 0) { 1144 ret = f(menu, menu_root, osdev); 1145 } else if (strcmp(subcmd, "upgrade") == 0) { 1146 ret = f(menu, bam_root, menu_root); 1147 } else if (strcmp(subcmd, "list_entry") == 0) { 1148 ret = f(menu, menu_path, opt); 1149 } else if (strcmp(subcmd, "list_setting") == 0) { 1150 ret = f(menu, ((largc > 0) ? largv[0] : ""), 1151 ((largc > 1) ? largv[1] : "")); 1152 } else if (strcmp(subcmd, "disable_hypervisor") == 0) { 1153 if (is_sparc()) { 1154 bam_error(NO_SPARC, subcmd); 1155 ret = BAM_ERROR; 1156 } else { 1157 ret = f(menu, bam_root, NULL); 1158 } 1159 } else if (strcmp(subcmd, "enable_hypervisor") == 0) { 1160 if (is_sparc()) { 1161 bam_error(NO_SPARC, subcmd); 1162 ret = BAM_ERROR; 1163 } else { 1164 char *extra_args = NULL; 1165 1166 /* 1167 * Compress all arguments passed in the largv[] array 1168 * into one string that can then be appended to the 1169 * end of the kernel$ string the routine to enable the 1170 * hypervisor will build. 1171 * 1172 * This allows the caller to supply arbitrary unparsed 1173 * arguments, such as dom0 memory settings or APIC 1174 * options. 1175 * 1176 * This concatenation will be done without ANY syntax 1177 * checking whatsoever, so it's the responsibility of 1178 * the caller to make sure the arguments are valid and 1179 * do not duplicate arguments the conversion routines 1180 * may create. 1181 */ 1182 if (largc > 0) { 1183 int extra_len, i; 1184 1185 for (extra_len = 0, i = 0; i < largc; i++) 1186 extra_len += strlen(largv[i]); 1187 1188 /* 1189 * Allocate space for argument strings, 1190 * intervening spaces and terminating NULL. 1191 */ 1192 extra_args = alloca(extra_len + largc); 1193 1194 (void) strcpy(extra_args, largv[0]); 1195 1196 for (i = 1; i < largc; i++) { 1197 (void) strcat(extra_args, " "); 1198 (void) strcat(extra_args, largv[i]); 1199 } 1200 } 1201 1202 ret = f(menu, bam_root, extra_args); 1203 } 1204 } else 1205 ret = f(menu, NULL, opt); 1206 1207 if (ret == BAM_WRITE) { 1208 BAM_DPRINTF((D_WRITING_MENU_ROOT, fcn, clean_menu_root)); 1209 ret = menu_write(clean_menu_root, menu); 1210 } 1211 1212 out: 1213 INJECT_ERROR1("POOL_SET", pool = "/pooldata"); 1214 assert((is_zfs(menu_root)) ^ (pool == NULL)); 1215 if (pool) { 1216 (void) umount_top_dataset(pool, zmnted, zmntpt); 1217 free(special); 1218 } 1219 menu_free(menu); 1220 return (ret); 1221 } 1222 1223 1224 static error_t 1225 bam_archive( 1226 char *subcmd, 1227 char *opt) 1228 { 1229 error_t ret; 1230 error_t (*f)(char *root, char *opt); 1231 const char *fcn = "bam_archive()"; 1232 1233 /* 1234 * Add trailing / for archive subcommands 1235 */ 1236 if (rootbuf[strlen(rootbuf) - 1] != '/') 1237 (void) strcat(rootbuf, "/"); 1238 bam_rootlen = strlen(rootbuf); 1239 1240 /* 1241 * Check arguments 1242 */ 1243 ret = check_subcmd_and_options(subcmd, opt, arch_subcmds, &f); 1244 if (ret != BAM_SUCCESS) { 1245 return (BAM_ERROR); 1246 } 1247 1248 ret = get_boot_cap(rootbuf); 1249 if (ret != BAM_SUCCESS) { 1250 BAM_DPRINTF((D_BOOT_GET_CAP_FAILED, fcn)); 1251 return (ret); 1252 } 1253 1254 /* 1255 * Check archive not supported with update_all 1256 * since it is awkward to display out-of-sync 1257 * information for each BE. 1258 */ 1259 if (bam_check && strcmp(subcmd, "update_all") == 0) { 1260 bam_error(CHECK_NOT_SUPPORTED, subcmd); 1261 return (BAM_ERROR); 1262 } 1263 1264 if (strcmp(subcmd, "update_all") == 0) 1265 bam_update_all = 1; 1266 1267 #if !defined(_OPB) 1268 ucode_install(bam_root); 1269 #endif 1270 1271 ret = f(bam_root, opt); 1272 1273 bam_update_all = 0; 1274 1275 return (ret); 1276 } 1277 1278 /*PRINTFLIKE1*/ 1279 void 1280 bam_error(char *format, ...) 1281 { 1282 va_list ap; 1283 1284 va_start(ap, format); 1285 (void) fprintf(stderr, "%s: ", prog); 1286 (void) vfprintf(stderr, format, ap); 1287 va_end(ap); 1288 } 1289 1290 /*PRINTFLIKE1*/ 1291 void 1292 bam_derror(char *format, ...) 1293 { 1294 va_list ap; 1295 1296 assert(bam_debug); 1297 1298 va_start(ap, format); 1299 (void) fprintf(stderr, "DEBUG: "); 1300 (void) vfprintf(stderr, format, ap); 1301 va_end(ap); 1302 } 1303 1304 /*PRINTFLIKE1*/ 1305 void 1306 bam_print(char *format, ...) 1307 { 1308 va_list ap; 1309 1310 va_start(ap, format); 1311 (void) vfprintf(stdout, format, ap); 1312 va_end(ap); 1313 } 1314 1315 /*PRINTFLIKE1*/ 1316 void 1317 bam_print_stderr(char *format, ...) 1318 { 1319 va_list ap; 1320 1321 va_start(ap, format); 1322 (void) vfprintf(stderr, format, ap); 1323 va_end(ap); 1324 } 1325 1326 void 1327 bam_exit(int excode) 1328 { 1329 restore_env(); 1330 bam_unlock(); 1331 exit(excode); 1332 } 1333 1334 static void 1335 bam_lock(void) 1336 { 1337 struct flock lock; 1338 pid_t pid; 1339 1340 bam_lock_fd = open(BAM_LOCK_FILE, O_CREAT|O_RDWR, LOCK_FILE_PERMS); 1341 if (bam_lock_fd < 0) { 1342 /* 1343 * We may be invoked early in boot for archive verification. 1344 * In this case, root is readonly and /var/run may not exist. 1345 * Proceed without the lock 1346 */ 1347 if (errno == EROFS || errno == ENOENT) { 1348 bam_root_readonly = 1; 1349 return; 1350 } 1351 1352 bam_error(OPEN_FAIL, BAM_LOCK_FILE, strerror(errno)); 1353 bam_exit(1); 1354 } 1355 1356 lock.l_type = F_WRLCK; 1357 lock.l_whence = SEEK_SET; 1358 lock.l_start = 0; 1359 lock.l_len = 0; 1360 1361 if (fcntl(bam_lock_fd, F_SETLK, &lock) == -1) { 1362 if (errno != EACCES && errno != EAGAIN) { 1363 bam_error(LOCK_FAIL, BAM_LOCK_FILE, strerror(errno)); 1364 (void) close(bam_lock_fd); 1365 bam_lock_fd = -1; 1366 bam_exit(1); 1367 } 1368 pid = 0; 1369 (void) pread(bam_lock_fd, &pid, sizeof (pid_t), 0); 1370 bam_print(FILE_LOCKED, pid); 1371 1372 lock.l_type = F_WRLCK; 1373 lock.l_whence = SEEK_SET; 1374 lock.l_start = 0; 1375 lock.l_len = 0; 1376 if (fcntl(bam_lock_fd, F_SETLKW, &lock) == -1) { 1377 bam_error(LOCK_FAIL, BAM_LOCK_FILE, strerror(errno)); 1378 (void) close(bam_lock_fd); 1379 bam_lock_fd = -1; 1380 bam_exit(1); 1381 } 1382 } 1383 1384 /* We own the lock now */ 1385 pid = getpid(); 1386 (void) write(bam_lock_fd, &pid, sizeof (pid)); 1387 } 1388 1389 static void 1390 bam_unlock(void) 1391 { 1392 struct flock unlock; 1393 1394 /* 1395 * NOP if we don't hold the lock 1396 */ 1397 if (bam_lock_fd < 0) { 1398 return; 1399 } 1400 1401 unlock.l_type = F_UNLCK; 1402 unlock.l_whence = SEEK_SET; 1403 unlock.l_start = 0; 1404 unlock.l_len = 0; 1405 1406 if (fcntl(bam_lock_fd, F_SETLK, &unlock) == -1) { 1407 bam_error(UNLOCK_FAIL, BAM_LOCK_FILE, strerror(errno)); 1408 } 1409 1410 if (close(bam_lock_fd) == -1) { 1411 bam_error(CLOSE_FAIL, BAM_LOCK_FILE, strerror(errno)); 1412 } 1413 bam_lock_fd = -1; 1414 } 1415 1416 static error_t 1417 list_archive(char *root, char *opt) 1418 { 1419 filelist_t flist; 1420 filelist_t *flistp = &flist; 1421 line_t *lp; 1422 1423 assert(root); 1424 assert(opt == NULL); 1425 1426 flistp->head = flistp->tail = NULL; 1427 if (read_list(root, flistp) != BAM_SUCCESS) { 1428 return (BAM_ERROR); 1429 } 1430 assert(flistp->head && flistp->tail); 1431 1432 for (lp = flistp->head; lp; lp = lp->next) { 1433 bam_print(PRINT, lp->line); 1434 } 1435 1436 filelist_free(flistp); 1437 1438 return (BAM_SUCCESS); 1439 } 1440 1441 /* 1442 * This routine writes a list of lines to a file. 1443 * The list is *not* freed 1444 */ 1445 static error_t 1446 list2file(char *root, char *tmp, char *final, line_t *start) 1447 { 1448 char tmpfile[PATH_MAX]; 1449 char path[PATH_MAX]; 1450 FILE *fp; 1451 int ret; 1452 struct stat sb; 1453 mode_t mode; 1454 uid_t root_uid; 1455 gid_t sys_gid; 1456 struct passwd *pw; 1457 struct group *gp; 1458 const char *fcn = "list2file()"; 1459 1460 (void) snprintf(path, sizeof (path), "%s%s", root, final); 1461 1462 if (start == NULL) { 1463 /* Empty GRUB menu */ 1464 if (stat(path, &sb) != -1) { 1465 bam_print(UNLINK_EMPTY, path); 1466 if (unlink(path) != 0) { 1467 bam_error(UNLINK_FAIL, path, strerror(errno)); 1468 return (BAM_ERROR); 1469 } else { 1470 return (BAM_SUCCESS); 1471 } 1472 } 1473 return (BAM_SUCCESS); 1474 } 1475 1476 /* 1477 * Preserve attributes of existing file if possible, 1478 * otherwise ask the system for uid/gid of root/sys. 1479 * If all fails, fall back on hard-coded defaults. 1480 */ 1481 if (stat(path, &sb) != -1) { 1482 mode = sb.st_mode; 1483 root_uid = sb.st_uid; 1484 sys_gid = sb.st_gid; 1485 } else { 1486 mode = DEFAULT_DEV_MODE; 1487 if ((pw = getpwnam(DEFAULT_DEV_USER)) != NULL) { 1488 root_uid = pw->pw_uid; 1489 } else { 1490 bam_error(CANT_FIND_USER, 1491 DEFAULT_DEV_USER, DEFAULT_DEV_UID); 1492 root_uid = (uid_t)DEFAULT_DEV_UID; 1493 } 1494 if ((gp = getgrnam(DEFAULT_DEV_GROUP)) != NULL) { 1495 sys_gid = gp->gr_gid; 1496 } else { 1497 bam_error(CANT_FIND_GROUP, 1498 DEFAULT_DEV_GROUP, DEFAULT_DEV_GID); 1499 sys_gid = (gid_t)DEFAULT_DEV_GID; 1500 } 1501 } 1502 1503 (void) snprintf(tmpfile, sizeof (tmpfile), "%s%s", root, tmp); 1504 1505 /* Truncate tmpfile first */ 1506 fp = fopen(tmpfile, "w"); 1507 if (fp == NULL) { 1508 bam_error(OPEN_FAIL, tmpfile, strerror(errno)); 1509 return (BAM_ERROR); 1510 } 1511 ret = fclose(fp); 1512 INJECT_ERROR1("LIST2FILE_TRUNC_FCLOSE", ret = EOF); 1513 if (ret == EOF) { 1514 bam_error(CLOSE_FAIL, tmpfile, strerror(errno)); 1515 return (BAM_ERROR); 1516 } 1517 1518 /* Now open it in append mode */ 1519 fp = fopen(tmpfile, "a"); 1520 if (fp == NULL) { 1521 bam_error(OPEN_FAIL, tmpfile, strerror(errno)); 1522 return (BAM_ERROR); 1523 } 1524 1525 for (; start; start = start->next) { 1526 ret = s_fputs(start->line, fp); 1527 INJECT_ERROR1("LIST2FILE_FPUTS", ret = EOF); 1528 if (ret == EOF) { 1529 bam_error(WRITE_FAIL, tmpfile, strerror(errno)); 1530 (void) fclose(fp); 1531 return (BAM_ERROR); 1532 } 1533 } 1534 1535 ret = fclose(fp); 1536 INJECT_ERROR1("LIST2FILE_APPEND_FCLOSE", ret = EOF); 1537 if (ret == EOF) { 1538 bam_error(CLOSE_FAIL, tmpfile, strerror(errno)); 1539 return (BAM_ERROR); 1540 } 1541 1542 /* 1543 * Set up desired attributes. Ignore failures on filesystems 1544 * not supporting these operations - pcfs reports unsupported 1545 * operations as EINVAL. 1546 */ 1547 ret = chmod(tmpfile, mode); 1548 if (ret == -1 && 1549 errno != EINVAL && errno != ENOTSUP) { 1550 bam_error(CHMOD_FAIL, tmpfile, strerror(errno)); 1551 return (BAM_ERROR); 1552 } 1553 1554 ret = chown(tmpfile, root_uid, sys_gid); 1555 if (ret == -1 && 1556 errno != EINVAL && errno != ENOTSUP) { 1557 bam_error(CHOWN_FAIL, tmpfile, strerror(errno)); 1558 return (BAM_ERROR); 1559 } 1560 1561 /* 1562 * Do an atomic rename 1563 */ 1564 ret = rename(tmpfile, path); 1565 INJECT_ERROR1("LIST2FILE_RENAME", ret = -1); 1566 if (ret != 0) { 1567 bam_error(RENAME_FAIL, path, strerror(errno)); 1568 return (BAM_ERROR); 1569 } 1570 1571 BAM_DPRINTF((D_WROTE_FILE, fcn, path)); 1572 return (BAM_SUCCESS); 1573 } 1574 1575 /* 1576 * Checks if the path specified (without the file name at the end) exists 1577 * and creates it if not. If the path exists and is not a directory, an attempt 1578 * to unlink is made. 1579 */ 1580 static int 1581 setup_path(char *path) 1582 { 1583 char *p; 1584 int ret; 1585 struct stat sb; 1586 1587 p = strrchr(path, '/'); 1588 if (p != NULL) { 1589 *p = '\0'; 1590 if (stat(path, &sb) != 0 || !(S_ISDIR(sb.st_mode))) { 1591 /* best effort attempt, mkdirp will catch the error */ 1592 (void) unlink(path); 1593 if (bam_verbose) 1594 bam_print(NEED_DIRPATH, path); 1595 ret = mkdirp(path, DIR_PERMS); 1596 if (ret == -1) { 1597 bam_error(MKDIR_FAILED, path, strerror(errno)); 1598 *p = '/'; 1599 return (BAM_ERROR); 1600 } 1601 } 1602 *p = '/'; 1603 return (BAM_SUCCESS); 1604 } 1605 return (BAM_SUCCESS); 1606 } 1607 1608 typedef union { 1609 gzFile gzfile; 1610 int fdfile; 1611 } outfile; 1612 1613 typedef struct { 1614 char path[PATH_MAX]; 1615 outfile out; 1616 } cachefile; 1617 1618 static int 1619 setup_file(char *base, const char *path, cachefile *cf) 1620 { 1621 int ret; 1622 char *strip; 1623 1624 /* init gzfile or fdfile in case we fail before opening */ 1625 if (bam_direct == BAM_DIRECT_DBOOT) 1626 cf->out.gzfile = NULL; 1627 else 1628 cf->out.fdfile = -1; 1629 1630 /* strip the trailing altroot path */ 1631 strip = (char *)path + strlen(rootbuf); 1632 1633 ret = snprintf(cf->path, sizeof (cf->path), "%s/%s", base, strip); 1634 if (ret >= sizeof (cf->path)) { 1635 bam_error(PATH_TOO_LONG, rootbuf); 1636 return (BAM_ERROR); 1637 } 1638 1639 /* Check if path is present in the archive cache directory */ 1640 if (setup_path(cf->path) == BAM_ERROR) 1641 return (BAM_ERROR); 1642 1643 if (bam_direct == BAM_DIRECT_DBOOT) { 1644 if ((cf->out.gzfile = gzopen(cf->path, "wb")) == NULL) { 1645 bam_error(OPEN_FAIL, cf->path, strerror(errno)); 1646 return (BAM_ERROR); 1647 } 1648 (void) gzsetparams(cf->out.gzfile, Z_BEST_SPEED, 1649 Z_DEFAULT_STRATEGY); 1650 } else { 1651 if ((cf->out.fdfile = open(cf->path, O_WRONLY | O_CREAT, 0644)) 1652 == -1) { 1653 bam_error(OPEN_FAIL, cf->path, strerror(errno)); 1654 return (BAM_ERROR); 1655 } 1656 } 1657 1658 return (BAM_SUCCESS); 1659 } 1660 1661 static int 1662 cache_write(cachefile cf, char *buf, int size) 1663 { 1664 int err; 1665 1666 if (bam_direct == BAM_DIRECT_DBOOT) { 1667 if (gzwrite(cf.out.gzfile, buf, size) < 1) { 1668 bam_error(GZ_WRITE_FAIL, gzerror(cf.out.gzfile, &err)); 1669 if (err == Z_ERRNO && bam_verbose) { 1670 bam_error(WRITE_FAIL, cf.path, strerror(errno)); 1671 } 1672 return (BAM_ERROR); 1673 } 1674 } else { 1675 if (write(cf.out.fdfile, buf, size) < 1) { 1676 bam_error(WRITE_FAIL, cf.path, strerror(errno)); 1677 return (BAM_ERROR); 1678 } 1679 } 1680 return (BAM_SUCCESS); 1681 } 1682 1683 static int 1684 cache_close(cachefile cf) 1685 { 1686 int ret; 1687 1688 if (bam_direct == BAM_DIRECT_DBOOT) { 1689 if (cf.out.gzfile) { 1690 ret = gzclose(cf.out.gzfile); 1691 if (ret != Z_OK) { 1692 bam_error(CLOSE_FAIL, cf.path, strerror(errno)); 1693 return (BAM_ERROR); 1694 } 1695 } 1696 } else { 1697 if (cf.out.fdfile != -1) { 1698 ret = close(cf.out.fdfile); 1699 if (ret != 0) { 1700 bam_error(CLOSE_FAIL, cf.path, strerror(errno)); 1701 return (BAM_ERROR); 1702 } 1703 } 1704 } 1705 1706 return (BAM_SUCCESS); 1707 } 1708 1709 static int 1710 dircache_updatefile(const char *path, int what) 1711 { 1712 int ret, exitcode; 1713 char buf[4096 * 4]; 1714 FILE *infile; 1715 cachefile outfile, outupdt; 1716 1717 if (bam_nowrite()) { 1718 set_dir_flag(what, NEED_UPDATE); 1719 return (BAM_SUCCESS); 1720 } 1721 1722 if (!has_cachedir(what)) 1723 return (BAM_SUCCESS); 1724 1725 if ((infile = fopen(path, "rb")) == NULL) { 1726 bam_error(OPEN_FAIL, path, strerror(errno)); 1727 return (BAM_ERROR); 1728 } 1729 1730 ret = setup_file(get_cachedir(what), path, &outfile); 1731 if (ret == BAM_ERROR) { 1732 exitcode = BAM_ERROR; 1733 goto out; 1734 } 1735 if (!is_dir_flag_on(what, NO_MULTI)) { 1736 ret = setup_file(get_updatedir(what), path, &outupdt); 1737 if (ret == BAM_ERROR) 1738 set_dir_flag(what, NO_MULTI); 1739 } 1740 1741 while ((ret = fread(buf, 1, sizeof (buf), infile)) > 0) { 1742 if (cache_write(outfile, buf, ret) == BAM_ERROR) { 1743 exitcode = BAM_ERROR; 1744 goto out; 1745 } 1746 if (!is_dir_flag_on(what, NO_MULTI)) 1747 if (cache_write(outupdt, buf, ret) == BAM_ERROR) 1748 set_dir_flag(what, NO_MULTI); 1749 } 1750 1751 set_dir_flag(what, NEED_UPDATE); 1752 get_count(what)++; 1753 if (get_count(what) > COUNT_MAX) 1754 set_dir_flag(what, NO_MULTI); 1755 exitcode = BAM_SUCCESS; 1756 out: 1757 (void) fclose(infile); 1758 if (cache_close(outfile) == BAM_ERROR) 1759 exitcode = BAM_ERROR; 1760 if (!is_dir_flag_on(what, NO_MULTI) && 1761 cache_close(outupdt) == BAM_ERROR) 1762 exitcode = BAM_ERROR; 1763 if (exitcode == BAM_ERROR) 1764 set_flag(UPDATE_ERROR); 1765 return (exitcode); 1766 } 1767 1768 static int 1769 dircache_updatedir(const char *path, int what, int updt) 1770 { 1771 int ret; 1772 char dpath[PATH_MAX]; 1773 char *strip; 1774 struct stat sb; 1775 1776 strip = (char *)path + strlen(rootbuf); 1777 1778 ret = snprintf(dpath, sizeof (dpath), "%s/%s", updt ? 1779 get_updatedir(what) : get_cachedir(what), strip); 1780 1781 if (ret >= sizeof (dpath)) { 1782 bam_error(PATH_TOO_LONG, rootbuf); 1783 set_flag(UPDATE_ERROR); 1784 return (BAM_ERROR); 1785 } 1786 1787 if (stat(dpath, &sb) == 0 && S_ISDIR(sb.st_mode)) 1788 return (BAM_SUCCESS); 1789 1790 if (updt) { 1791 if (!is_dir_flag_on(what, NO_MULTI)) 1792 if (!bam_nowrite() && mkdirp(dpath, DIR_PERMS) == -1) 1793 set_dir_flag(what, NO_MULTI); 1794 } else { 1795 if (!bam_nowrite() && mkdirp(dpath, DIR_PERMS) == -1) { 1796 set_flag(UPDATE_ERROR); 1797 return (BAM_ERROR); 1798 } 1799 } 1800 1801 set_dir_flag(what, NEED_UPDATE); 1802 return (BAM_SUCCESS); 1803 } 1804 1805 #define DO_CACHE_DIR 0 1806 #define DO_UPDATE_DIR 1 1807 1808 #if defined(_LP64) || defined(_LONGLONG_TYPE) 1809 typedef Elf64_Ehdr _elfhdr; 1810 #else 1811 typedef Elf32_Ehdr _elfhdr; 1812 #endif 1813 1814 /* 1815 * This routine updates the contents of the cache directory 1816 */ 1817 static int 1818 update_dircache(const char *path, int flags) 1819 { 1820 int rc = BAM_SUCCESS; 1821 1822 switch (flags) { 1823 case FTW_F: 1824 { 1825 int fd; 1826 _elfhdr elf; 1827 1828 if ((fd = open(path, O_RDONLY)) < 0) { 1829 bam_error(OPEN_FAIL, path, strerror(errno)); 1830 set_flag(UPDATE_ERROR); 1831 rc = BAM_ERROR; 1832 break; 1833 } 1834 1835 /* 1836 * libelf and gelf would be a cleaner and easier way to handle 1837 * this, but libelf fails compilation if _ILP32 is defined && 1838 * _FILE_OFFSET_BITS is != 32 ... 1839 */ 1840 if (read(fd, (void *)&elf, sizeof (_elfhdr)) < 0) { 1841 bam_error(READ_FAIL, path, strerror(errno)); 1842 set_flag(UPDATE_ERROR); 1843 (void) close(fd); 1844 rc = BAM_ERROR; 1845 break; 1846 } 1847 (void) close(fd); 1848 1849 /* 1850 * If the file is not an executable and is not inside an amd64 1851 * directory, we copy it in both the cache directories, 1852 * otherwise, we only copy it inside the 64-bit one. 1853 */ 1854 if (memcmp(elf.e_ident, ELFMAG, 4) != 0) { 1855 if (strstr(path, "/amd64")) { 1856 rc = dircache_updatefile(path, FILE64); 1857 } else { 1858 rc = dircache_updatefile(path, FILE32); 1859 if (rc == BAM_SUCCESS) 1860 rc = dircache_updatefile(path, FILE64); 1861 } 1862 } else { 1863 /* 1864 * Based on the ELF class we copy the file in the 32-bit 1865 * or the 64-bit cache directory. 1866 */ 1867 if (elf.e_ident[EI_CLASS] == ELFCLASS32) { 1868 rc = dircache_updatefile(path, FILE32); 1869 } else if (elf.e_ident[EI_CLASS] == ELFCLASS64) { 1870 rc = dircache_updatefile(path, FILE64); 1871 } else { 1872 bam_print(NO3264ELF, path); 1873 /* paranoid */ 1874 rc = dircache_updatefile(path, FILE32); 1875 if (rc == BAM_SUCCESS) 1876 rc = dircache_updatefile(path, FILE64); 1877 } 1878 } 1879 break; 1880 } 1881 case FTW_D: 1882 if (strstr(path, "/amd64") == NULL) { 1883 rc = dircache_updatedir(path, FILE32, DO_UPDATE_DIR); 1884 if (rc == BAM_SUCCESS) 1885 rc = dircache_updatedir(path, FILE32, 1886 DO_CACHE_DIR); 1887 } else { 1888 if (has_cachedir(FILE64)) { 1889 rc = dircache_updatedir(path, FILE64, 1890 DO_UPDATE_DIR); 1891 if (rc == BAM_SUCCESS) 1892 rc = dircache_updatedir(path, FILE64, 1893 DO_CACHE_DIR); 1894 } 1895 } 1896 break; 1897 default: 1898 rc = BAM_ERROR; 1899 break; 1900 } 1901 1902 return (rc); 1903 } 1904 1905 /*ARGSUSED*/ 1906 static int 1907 cmpstat( 1908 const char *file, 1909 const struct stat *st, 1910 int flags, 1911 struct FTW *ftw) 1912 { 1913 uint_t sz; 1914 uint64_t *value; 1915 uint64_t filestat[2]; 1916 int error, ret, status; 1917 1918 struct safefile *safefilep; 1919 FILE *fp; 1920 struct stat sb; 1921 regex_t re; 1922 1923 /* 1924 * On SPARC we create/update links too. 1925 */ 1926 if (flags != FTW_F && flags != FTW_D && (flags == FTW_SL && 1927 !is_flag_on(IS_SPARC_TARGET))) 1928 return (0); 1929 1930 /* 1931 * Ignore broken links 1932 */ 1933 if (flags == FTW_SL && stat(file, &sb) < 0) 1934 return (0); 1935 1936 /* 1937 * new_nvlp may be NULL if there were errors earlier 1938 * but this is not fatal to update determination. 1939 */ 1940 if (walk_arg.new_nvlp) { 1941 filestat[0] = st->st_size; 1942 filestat[1] = st->st_mtime; 1943 error = nvlist_add_uint64_array(walk_arg.new_nvlp, 1944 file + bam_rootlen, filestat, 2); 1945 if (error) 1946 bam_error(NVADD_FAIL, file, strerror(error)); 1947 } 1948 1949 /* 1950 * If we are invoked as part of system/filesystem/boot-archive, then 1951 * there are a number of things we should not worry about 1952 */ 1953 if (bam_smf_check) { 1954 /* ignore amd64 modules unless we are booted amd64. */ 1955 if (!is_amd64() && strstr(file, "/amd64/") != 0) 1956 return (0); 1957 1958 /* read in list of safe files */ 1959 if (safefiles == NULL) 1960 if (fp = fopen("/boot/solaris/filelist.safe", "r")) { 1961 safefiles = s_calloc(1, 1962 sizeof (struct safefile)); 1963 safefilep = safefiles; 1964 safefilep->name = s_calloc(1, MAXPATHLEN + 1965 MAXNAMELEN); 1966 safefilep->next = NULL; 1967 while (s_fgets(safefilep->name, MAXPATHLEN + 1968 MAXNAMELEN, fp) != NULL) { 1969 safefilep->next = s_calloc(1, 1970 sizeof (struct safefile)); 1971 safefilep = safefilep->next; 1972 safefilep->name = s_calloc(1, 1973 MAXPATHLEN + MAXNAMELEN); 1974 safefilep->next = NULL; 1975 } 1976 (void) fclose(fp); 1977 } 1978 } 1979 1980 /* 1981 * On SPARC we create a -path-list file for mkisofs 1982 */ 1983 if (is_flag_on(IS_SPARC_TARGET) && !bam_nowrite()) { 1984 if (flags != FTW_D) { 1985 char *strip; 1986 1987 strip = (char *)file + strlen(rootbuf); 1988 (void) fprintf(walk_arg.sparcfile, "/%s=%s\n", strip, 1989 file); 1990 } 1991 } 1992 1993 /* 1994 * We are transitioning from the old model to the dircache or the cache 1995 * directory was removed: create the entry without further checkings. 1996 */ 1997 if (is_flag_on(NEED_CACHE_DIR)) { 1998 if (bam_verbose) 1999 bam_print(PARSEABLE_NEW_FILE, file); 2000 2001 if (is_flag_on(IS_SPARC_TARGET)) { 2002 set_dir_flag(FILE64, NEED_UPDATE); 2003 return (0); 2004 } 2005 2006 ret = update_dircache(file, flags); 2007 if (ret == BAM_ERROR) { 2008 bam_error(UPDT_CACHE_FAIL, file); 2009 return (-1); 2010 } 2011 2012 return (0); 2013 } 2014 2015 /* 2016 * We need an update if file doesn't exist in old archive 2017 */ 2018 if (walk_arg.old_nvlp == NULL || 2019 nvlist_lookup_uint64_array(walk_arg.old_nvlp, 2020 file + bam_rootlen, &value, &sz) != 0) { 2021 if (bam_smf_check) /* ignore new during smf check */ 2022 return (0); 2023 2024 if (is_flag_on(IS_SPARC_TARGET)) { 2025 set_dir_flag(FILE64, NEED_UPDATE); 2026 } else { 2027 ret = update_dircache(file, flags); 2028 if (ret == BAM_ERROR) { 2029 bam_error(UPDT_CACHE_FAIL, file); 2030 return (-1); 2031 } 2032 } 2033 2034 if (bam_verbose) 2035 bam_print(PARSEABLE_NEW_FILE, file); 2036 return (0); 2037 } 2038 2039 /* 2040 * If we got there, the file is already listed as to be included in the 2041 * iso image. We just need to know if we are going to rebuild it or not 2042 */ 2043 if (is_flag_on(IS_SPARC_TARGET) && 2044 is_dir_flag_on(FILE64, NEED_UPDATE) && !bam_nowrite()) 2045 return (0); 2046 /* 2047 * File exists in old archive. Check if file has changed 2048 */ 2049 assert(sz == 2); 2050 bcopy(value, filestat, sizeof (filestat)); 2051 2052 if (flags != FTW_D && (filestat[0] != st->st_size || 2053 filestat[1] != st->st_mtime)) { 2054 if (bam_smf_check) { 2055 safefilep = safefiles; 2056 while (safefilep != NULL && 2057 safefilep->name[0] != '\0') { 2058 if (regcomp(&re, safefilep->name, 2059 REG_EXTENDED|REG_NOSUB) == 0) { 2060 status = regexec(&re, 2061 file + bam_rootlen, 0, NULL, 0); 2062 regfree(&re); 2063 if (status == 0) { 2064 (void) creat(NEED_UPDATE_FILE, 2065 0644); 2066 return (0); 2067 } 2068 } 2069 safefilep = safefilep->next; 2070 } 2071 } 2072 2073 if (is_flag_on(IS_SPARC_TARGET)) { 2074 set_dir_flag(FILE64, NEED_UPDATE); 2075 } else { 2076 ret = update_dircache(file, flags); 2077 if (ret == BAM_ERROR) { 2078 bam_error(UPDT_CACHE_FAIL, file); 2079 return (-1); 2080 } 2081 } 2082 2083 if (bam_verbose) 2084 if (bam_smf_check) 2085 bam_print(" %s\n", file); 2086 else 2087 bam_print(PARSEABLE_OUT_DATE, file); 2088 } 2089 2090 return (0); 2091 } 2092 2093 /* 2094 * Remove a directory path recursively 2095 */ 2096 static int 2097 rmdir_r(char *path) 2098 { 2099 struct dirent *d = NULL; 2100 DIR *dir = NULL; 2101 char tpath[PATH_MAX]; 2102 struct stat sb; 2103 2104 if ((dir = opendir(path)) == NULL) 2105 return (-1); 2106 2107 while (d = readdir(dir)) { 2108 if ((strcmp(d->d_name, ".") != 0) && 2109 (strcmp(d->d_name, "..") != 0)) { 2110 (void) snprintf(tpath, sizeof (tpath), "%s/%s", 2111 path, d->d_name); 2112 if (stat(tpath, &sb) == 0) { 2113 if (sb.st_mode & S_IFDIR) 2114 (void) rmdir_r(tpath); 2115 else 2116 (void) remove(tpath); 2117 } 2118 } 2119 } 2120 return (remove(path)); 2121 } 2122 2123 /* 2124 * Check if cache directory exists and, if not, create it and update flags 2125 * accordingly. If the path exists, but it's not a directory, a best effort 2126 * attempt to remove and recreate it is made. 2127 * If the user requested a 'purge', always recreate the directory from scratch. 2128 */ 2129 static int 2130 set_cache_dir(char *root, int what) 2131 { 2132 struct stat sb; 2133 int ret = 0; 2134 2135 ret = snprintf(get_cachedir(what), sizeof (get_cachedir(what)), 2136 "%s%s%s%s%s", root, ARCHIVE_PREFIX, get_machine(), what == FILE64 ? 2137 "/amd64" : "", CACHEDIR_SUFFIX); 2138 2139 if (ret >= sizeof (get_cachedir(what))) { 2140 bam_error(PATH_TOO_LONG, rootbuf); 2141 return (BAM_ERROR); 2142 } 2143 2144 if (bam_purge || is_flag_on(INVALIDATE_CACHE)) 2145 (void) rmdir_r(get_cachedir(what)); 2146 2147 if (stat(get_cachedir(what), &sb) != 0 || !(S_ISDIR(sb.st_mode))) { 2148 /* best effort unlink attempt, mkdir will catch errors */ 2149 (void) unlink(get_cachedir(what)); 2150 2151 if (bam_verbose) 2152 bam_print(UPDATE_CDIR_MISS, get_cachedir(what)); 2153 ret = mkdir(get_cachedir(what), DIR_PERMS); 2154 if (ret < 0) { 2155 bam_error(MKDIR_FAILED, get_cachedir(what), 2156 strerror(errno)); 2157 get_cachedir(what)[0] = '\0'; 2158 return (ret); 2159 } 2160 set_flag(NEED_CACHE_DIR); 2161 set_dir_flag(what, NO_MULTI); 2162 } 2163 2164 return (BAM_SUCCESS); 2165 } 2166 2167 static int 2168 set_update_dir(char *root, int what) 2169 { 2170 struct stat sb; 2171 int ret; 2172 2173 if (is_dir_flag_on(what, NO_MULTI)) 2174 return (BAM_SUCCESS); 2175 2176 if (!bam_extend) { 2177 set_dir_flag(what, NO_MULTI); 2178 return (BAM_SUCCESS); 2179 } 2180 2181 if (what == FILE64 && !is_flag_on(IS_SPARC_TARGET)) 2182 ret = snprintf(get_updatedir(what), 2183 sizeof (get_updatedir(what)), "%s%s%s/amd64%s", root, 2184 ARCHIVE_PREFIX, get_machine(), UPDATEDIR_SUFFIX); 2185 else 2186 ret = snprintf(get_updatedir(what), 2187 sizeof (get_updatedir(what)), "%s%s%s%s", root, 2188 ARCHIVE_PREFIX, get_machine(), UPDATEDIR_SUFFIX); 2189 2190 if (ret >= sizeof (get_updatedir(what))) { 2191 bam_error(PATH_TOO_LONG, rootbuf); 2192 return (BAM_ERROR); 2193 } 2194 2195 if (stat(get_updatedir(what), &sb) == 0) { 2196 if (S_ISDIR(sb.st_mode)) 2197 ret = rmdir_r(get_updatedir(what)); 2198 else 2199 ret = unlink(get_updatedir(what)); 2200 2201 if (ret != 0) 2202 set_dir_flag(what, NO_MULTI); 2203 } 2204 2205 if (mkdir(get_updatedir(what), DIR_PERMS) < 0) 2206 set_dir_flag(what, NO_MULTI); 2207 2208 return (BAM_SUCCESS); 2209 } 2210 2211 static int 2212 is_valid_archive(char *root, int what) 2213 { 2214 char archive_path[PATH_MAX]; 2215 char timestamp_path[PATH_MAX]; 2216 struct stat sb, timestamp; 2217 int ret; 2218 2219 if (what == FILE64 && !is_flag_on(IS_SPARC_TARGET)) 2220 ret = snprintf(archive_path, sizeof (archive_path), 2221 "%s%s%s/amd64%s", root, ARCHIVE_PREFIX, get_machine(), 2222 ARCHIVE_SUFFIX); 2223 else 2224 ret = snprintf(archive_path, sizeof (archive_path), "%s%s%s%s", 2225 root, ARCHIVE_PREFIX, get_machine(), ARCHIVE_SUFFIX); 2226 2227 if (ret >= sizeof (archive_path)) { 2228 bam_error(PATH_TOO_LONG, rootbuf); 2229 return (BAM_ERROR); 2230 } 2231 2232 if (stat(archive_path, &sb) != 0) { 2233 if (bam_verbose && !bam_check) 2234 bam_print(UPDATE_ARCH_MISS, archive_path); 2235 set_dir_flag(what, NEED_UPDATE); 2236 set_dir_flag(what, NO_MULTI); 2237 return (BAM_SUCCESS); 2238 } 2239 2240 /* 2241 * The timestamp file is used to prevent stale files in the archive 2242 * cache. 2243 * Stale files can happen if the system is booted back and forth across 2244 * the transition from bootadm-before-the-cache to 2245 * bootadm-after-the-cache, since older versions of bootadm don't know 2246 * about the existence of the archive cache. 2247 * 2248 * Since only bootadm-after-the-cache versions know about about this 2249 * file, we require that the boot archive be older than this file. 2250 */ 2251 ret = snprintf(timestamp_path, sizeof (timestamp_path), "%s%s", root, 2252 FILE_STAT_TIMESTAMP); 2253 2254 if (ret >= sizeof (timestamp_path)) { 2255 bam_error(PATH_TOO_LONG, rootbuf); 2256 return (BAM_ERROR); 2257 } 2258 2259 if (stat(timestamp_path, ×tamp) != 0 || 2260 sb.st_mtime > timestamp.st_mtime) { 2261 if (bam_verbose && !bam_check) 2262 bam_print(UPDATE_CACHE_OLD, timestamp); 2263 /* 2264 * Don't generate a false positive for the boot-archive service 2265 * but trigger an update of the archive cache in 2266 * boot-archive-update. 2267 */ 2268 if (bam_smf_check) { 2269 (void) creat(NEED_UPDATE_FILE, 0644); 2270 return (BAM_SUCCESS); 2271 } 2272 2273 set_flag(INVALIDATE_CACHE); 2274 set_dir_flag(what, NEED_UPDATE); 2275 set_dir_flag(what, NO_MULTI); 2276 return (BAM_SUCCESS); 2277 } 2278 2279 if (is_flag_on(IS_SPARC_TARGET)) 2280 return (BAM_SUCCESS); 2281 2282 if (bam_extend && sb.st_size > BA_SIZE_MAX) { 2283 if (bam_verbose && !bam_check) 2284 bam_print(MULTI_SIZE, archive_path, BA_SIZE_MAX); 2285 set_dir_flag(what, NO_MULTI); 2286 } 2287 2288 return (BAM_SUCCESS); 2289 } 2290 2291 /* 2292 * Check flags and presence of required files and directories. 2293 * The force flag and/or absence of files should 2294 * trigger an update. 2295 * Suppress stdout output if check (-n) option is set 2296 * (as -n should only produce parseable output.) 2297 */ 2298 static int 2299 check_flags_and_files(char *root) 2300 { 2301 2302 struct stat sb; 2303 int ret; 2304 2305 /* 2306 * If archive is missing, create archive 2307 */ 2308 if (is_flag_on(IS_SPARC_TARGET)) { 2309 ret = is_valid_archive(root, FILE64); 2310 if (ret == BAM_ERROR) 2311 return (BAM_ERROR); 2312 } else { 2313 int what = FILE32; 2314 do { 2315 ret = is_valid_archive(root, what); 2316 if (ret == BAM_ERROR) 2317 return (BAM_ERROR); 2318 what++; 2319 } while (bam_direct == BAM_DIRECT_DBOOT && what < CACHEDIR_NUM); 2320 } 2321 2322 if (bam_nowrite()) 2323 return (BAM_SUCCESS); 2324 2325 2326 /* 2327 * check if cache directories exist on x86. 2328 * check (and always open) the cache file on SPARC. 2329 */ 2330 if (is_sparc()) { 2331 ret = snprintf(get_cachedir(FILE64), 2332 sizeof (get_cachedir(FILE64)), "%s%s%s/%s", root, 2333 ARCHIVE_PREFIX, get_machine(), CACHEDIR_SUFFIX); 2334 2335 if (ret >= sizeof (get_cachedir(FILE64))) { 2336 bam_error(PATH_TOO_LONG, rootbuf); 2337 return (BAM_ERROR); 2338 } 2339 2340 if (stat(get_cachedir(FILE64), &sb) != 0) { 2341 set_flag(NEED_CACHE_DIR); 2342 set_dir_flag(FILE64, NEED_UPDATE); 2343 } 2344 2345 walk_arg.sparcfile = fopen(get_cachedir(FILE64), "w"); 2346 if (walk_arg.sparcfile == NULL) { 2347 bam_error(OPEN_FAIL, get_cachedir(FILE64), 2348 strerror(errno)); 2349 return (BAM_ERROR); 2350 } 2351 2352 set_dir_present(FILE64); 2353 } else { 2354 int what = FILE32; 2355 2356 do { 2357 if (set_cache_dir(root, what) != 0) 2358 return (BAM_ERROR); 2359 2360 set_dir_present(what); 2361 2362 if (set_update_dir(root, what) != 0) 2363 return (BAM_ERROR); 2364 what++; 2365 } while (bam_direct == BAM_DIRECT_DBOOT && what < CACHEDIR_NUM); 2366 } 2367 2368 /* 2369 * if force, create archive unconditionally 2370 */ 2371 if (bam_force) { 2372 if (!is_sparc()) 2373 set_dir_flag(FILE32, NEED_UPDATE); 2374 set_dir_flag(FILE64, NEED_UPDATE); 2375 if (bam_verbose) 2376 bam_print(UPDATE_FORCE); 2377 return (BAM_SUCCESS); 2378 } 2379 2380 return (BAM_SUCCESS); 2381 } 2382 2383 static error_t 2384 read_one_list(char *root, filelist_t *flistp, char *filelist) 2385 { 2386 char path[PATH_MAX]; 2387 FILE *fp; 2388 char buf[BAM_MAXLINE]; 2389 const char *fcn = "read_one_list()"; 2390 2391 (void) snprintf(path, sizeof (path), "%s%s", root, filelist); 2392 2393 fp = fopen(path, "r"); 2394 if (fp == NULL) { 2395 BAM_DPRINTF((D_FLIST_FAIL, fcn, path, strerror(errno))); 2396 return (BAM_ERROR); 2397 } 2398 while (s_fgets(buf, sizeof (buf), fp) != NULL) { 2399 /* skip blank lines */ 2400 if (strspn(buf, " \t") == strlen(buf)) 2401 continue; 2402 append_to_flist(flistp, buf); 2403 } 2404 if (fclose(fp) != 0) { 2405 bam_error(CLOSE_FAIL, path, strerror(errno)); 2406 return (BAM_ERROR); 2407 } 2408 return (BAM_SUCCESS); 2409 } 2410 2411 static error_t 2412 read_list(char *root, filelist_t *flistp) 2413 { 2414 char path[PATH_MAX]; 2415 char cmd[PATH_MAX]; 2416 struct stat sb; 2417 int n, rval; 2418 const char *fcn = "read_list()"; 2419 2420 flistp->head = flistp->tail = NULL; 2421 2422 /* 2423 * build and check path to extract_boot_filelist.ksh 2424 */ 2425 n = snprintf(path, sizeof (path), "%s%s", root, EXTRACT_BOOT_FILELIST); 2426 if (n >= sizeof (path)) { 2427 bam_error(NO_FLIST); 2428 return (BAM_ERROR); 2429 } 2430 2431 if (is_safe_exec(path) == BAM_ERROR) 2432 return (BAM_ERROR); 2433 2434 /* 2435 * If extract_boot_filelist is present, exec it, otherwise read 2436 * the filelists directly, for compatibility with older images. 2437 */ 2438 if (stat(path, &sb) == 0) { 2439 /* 2440 * build arguments to exec extract_boot_filelist.ksh 2441 */ 2442 char *rootarg, *platarg; 2443 int platarglen = 1, rootarglen = 1; 2444 if (strlen(root) > 1) 2445 rootarglen += strlen(root) + strlen("-R "); 2446 if (bam_alt_platform) 2447 platarglen += strlen(bam_platform) + strlen("-p "); 2448 platarg = s_calloc(1, platarglen); 2449 rootarg = s_calloc(1, rootarglen); 2450 *platarg = 0; 2451 *rootarg = 0; 2452 2453 if (strlen(root) > 1) { 2454 (void) snprintf(rootarg, rootarglen, 2455 "-R %s", root); 2456 } 2457 if (bam_alt_platform) { 2458 (void) snprintf(platarg, platarglen, 2459 "-p %s", bam_platform); 2460 } 2461 n = snprintf(cmd, sizeof (cmd), "%s %s %s /%s /%s", 2462 path, rootarg, platarg, BOOT_FILE_LIST, ETC_FILE_LIST); 2463 free(platarg); 2464 free(rootarg); 2465 if (n >= sizeof (cmd)) { 2466 bam_error(NO_FLIST); 2467 return (BAM_ERROR); 2468 } 2469 if (exec_cmd(cmd, flistp) != 0) { 2470 BAM_DPRINTF((D_FLIST_FAIL, fcn, path, strerror(errno))); 2471 return (BAM_ERROR); 2472 } 2473 } else { 2474 /* 2475 * Read current lists of files - only the first is mandatory 2476 */ 2477 rval = read_one_list(root, flistp, BOOT_FILE_LIST); 2478 if (rval != BAM_SUCCESS) 2479 return (rval); 2480 (void) read_one_list(root, flistp, ETC_FILE_LIST); 2481 } 2482 2483 if (flistp->head == NULL) { 2484 bam_error(NO_FLIST); 2485 return (BAM_ERROR); 2486 } 2487 2488 return (BAM_SUCCESS); 2489 } 2490 2491 static void 2492 getoldstat(char *root) 2493 { 2494 char path[PATH_MAX]; 2495 int fd, error; 2496 struct stat sb; 2497 char *ostat; 2498 2499 (void) snprintf(path, sizeof (path), "%s%s", root, FILE_STAT); 2500 fd = open(path, O_RDONLY); 2501 if (fd == -1) { 2502 if (bam_verbose) 2503 bam_print(OPEN_FAIL, path, strerror(errno)); 2504 goto out_err; 2505 } 2506 2507 if (fstat(fd, &sb) != 0) { 2508 bam_error(STAT_FAIL, path, strerror(errno)); 2509 goto out_err; 2510 } 2511 2512 ostat = s_calloc(1, sb.st_size); 2513 2514 if (read(fd, ostat, sb.st_size) != sb.st_size) { 2515 bam_error(READ_FAIL, path, strerror(errno)); 2516 free(ostat); 2517 goto out_err; 2518 } 2519 2520 (void) close(fd); 2521 fd = -1; 2522 2523 walk_arg.old_nvlp = NULL; 2524 error = nvlist_unpack(ostat, sb.st_size, &walk_arg.old_nvlp, 0); 2525 2526 free(ostat); 2527 2528 if (error) { 2529 bam_error(UNPACK_FAIL, path, strerror(error)); 2530 walk_arg.old_nvlp = NULL; 2531 goto out_err; 2532 } else { 2533 return; 2534 } 2535 2536 out_err: 2537 if (fd != -1) 2538 (void) close(fd); 2539 if (!is_flag_on(IS_SPARC_TARGET)) 2540 set_dir_flag(FILE32, NEED_UPDATE); 2541 set_dir_flag(FILE64, NEED_UPDATE); 2542 } 2543 2544 /* Best effort stale entry removal */ 2545 static void 2546 delete_stale(char *file, int what) 2547 { 2548 char path[PATH_MAX]; 2549 struct stat sb; 2550 2551 (void) snprintf(path, sizeof (path), "%s/%s", get_cachedir(what), file); 2552 if (!bam_check && stat(path, &sb) == 0) { 2553 if (sb.st_mode & S_IFDIR) 2554 (void) rmdir_r(path); 2555 else 2556 (void) unlink(path); 2557 2558 set_dir_flag(what, (NEED_UPDATE | NO_MULTI)); 2559 } 2560 } 2561 2562 /* 2563 * Checks if a file in the current (old) archive has 2564 * been deleted from the root filesystem. This is needed for 2565 * software like Trusted Extensions (TX) that switch early 2566 * in boot based on presence/absence of a kernel module. 2567 */ 2568 static void 2569 check4stale(char *root) 2570 { 2571 nvpair_t *nvp; 2572 nvlist_t *nvlp; 2573 char *file; 2574 char path[PATH_MAX]; 2575 2576 /* 2577 * Skip stale file check during smf check 2578 */ 2579 if (bam_smf_check) 2580 return; 2581 2582 /* 2583 * If we need to (re)create the cache, there's no need to check for 2584 * stale files 2585 */ 2586 if (is_flag_on(NEED_CACHE_DIR)) 2587 return; 2588 2589 /* Nothing to do if no old stats */ 2590 if ((nvlp = walk_arg.old_nvlp) == NULL) 2591 return; 2592 2593 for (nvp = nvlist_next_nvpair(nvlp, NULL); nvp; 2594 nvp = nvlist_next_nvpair(nvlp, nvp)) { 2595 file = nvpair_name(nvp); 2596 if (file == NULL) 2597 continue; 2598 (void) snprintf(path, sizeof (path), "%s/%s", 2599 root, file); 2600 if (access(path, F_OK) < 0) { 2601 int what; 2602 2603 if (bam_verbose) 2604 bam_print(PARSEABLE_STALE_FILE, path); 2605 2606 if (is_flag_on(IS_SPARC_TARGET)) { 2607 set_dir_flag(FILE64, NEED_UPDATE); 2608 } else { 2609 for (what = FILE32; what < CACHEDIR_NUM; what++) 2610 if (has_cachedir(what)) 2611 delete_stale(file, what); 2612 } 2613 } 2614 } 2615 } 2616 2617 static void 2618 create_newstat(void) 2619 { 2620 int error; 2621 2622 error = nvlist_alloc(&walk_arg.new_nvlp, NV_UNIQUE_NAME, 0); 2623 if (error) { 2624 /* 2625 * Not fatal - we can still create archive 2626 */ 2627 walk_arg.new_nvlp = NULL; 2628 bam_error(NVALLOC_FAIL, strerror(error)); 2629 } 2630 } 2631 2632 static int 2633 walk_list(char *root, filelist_t *flistp) 2634 { 2635 char path[PATH_MAX]; 2636 line_t *lp; 2637 2638 for (lp = flistp->head; lp; lp = lp->next) { 2639 /* 2640 * Don't follow symlinks. A symlink must refer to 2641 * a file that would appear in the archive through 2642 * a direct reference. This matches the archive 2643 * construction behavior. 2644 */ 2645 (void) snprintf(path, sizeof (path), "%s%s", root, lp->line); 2646 if (nftw(path, cmpstat, 20, FTW_PHYS) == -1) { 2647 if (is_flag_on(UPDATE_ERROR)) 2648 return (BAM_ERROR); 2649 /* 2650 * Some files may not exist. 2651 * For example: etc/rtc_config on a x86 diskless system 2652 * Emit verbose message only 2653 */ 2654 if (bam_verbose) 2655 bam_print(NFTW_FAIL, path, strerror(errno)); 2656 } 2657 } 2658 2659 return (BAM_SUCCESS); 2660 } 2661 2662 /* 2663 * Update the timestamp file. 2664 */ 2665 static void 2666 update_timestamp(char *root) 2667 { 2668 char timestamp_path[PATH_MAX]; 2669 2670 /* this path length has already been checked in check_flags_and_files */ 2671 (void) snprintf(timestamp_path, sizeof (timestamp_path), "%s%s", root, 2672 FILE_STAT_TIMESTAMP); 2673 2674 /* 2675 * recreate the timestamp file. Since an outdated or absent timestamp 2676 * file translates in a complete rebuild of the archive cache, notify 2677 * the user of the performance issue. 2678 */ 2679 if (creat(timestamp_path, FILE_STAT_MODE) < 0) { 2680 bam_error(OPEN_FAIL, timestamp_path, strerror(errno)); 2681 bam_error(TIMESTAMP_FAIL, rootbuf); 2682 } 2683 } 2684 2685 2686 static void 2687 savenew(char *root) 2688 { 2689 char path[PATH_MAX]; 2690 char path2[PATH_MAX]; 2691 size_t sz; 2692 char *nstat; 2693 int fd, wrote, error; 2694 2695 nstat = NULL; 2696 sz = 0; 2697 error = nvlist_pack(walk_arg.new_nvlp, &nstat, &sz, 2698 NV_ENCODE_XDR, 0); 2699 if (error) { 2700 bam_error(PACK_FAIL, strerror(error)); 2701 return; 2702 } 2703 2704 (void) snprintf(path, sizeof (path), "%s%s", root, FILE_STAT_TMP); 2705 fd = open(path, O_RDWR|O_CREAT|O_TRUNC, FILE_STAT_MODE); 2706 if (fd == -1) { 2707 bam_error(OPEN_FAIL, path, strerror(errno)); 2708 free(nstat); 2709 return; 2710 } 2711 wrote = write(fd, nstat, sz); 2712 if (wrote != sz) { 2713 bam_error(WRITE_FAIL, path, strerror(errno)); 2714 (void) close(fd); 2715 free(nstat); 2716 return; 2717 } 2718 (void) close(fd); 2719 free(nstat); 2720 2721 (void) snprintf(path2, sizeof (path2), "%s%s", root, FILE_STAT); 2722 if (rename(path, path2) != 0) { 2723 bam_error(RENAME_FAIL, path2, strerror(errno)); 2724 } 2725 } 2726 2727 #define init_walk_args() bzero(&walk_arg, sizeof (walk_arg)) 2728 2729 static void 2730 clear_walk_args(void) 2731 { 2732 if (walk_arg.old_nvlp) 2733 nvlist_free(walk_arg.old_nvlp); 2734 if (walk_arg.new_nvlp) 2735 nvlist_free(walk_arg.new_nvlp); 2736 if (walk_arg.sparcfile) 2737 (void) fclose(walk_arg.sparcfile); 2738 walk_arg.old_nvlp = NULL; 2739 walk_arg.new_nvlp = NULL; 2740 walk_arg.sparcfile = NULL; 2741 } 2742 2743 /* 2744 * Returns: 2745 * 0 - no update necessary 2746 * 1 - update required. 2747 * BAM_ERROR (-1) - An error occurred 2748 * 2749 * Special handling for check (-n): 2750 * ================================ 2751 * The check (-n) option produces parseable output. 2752 * To do this, we suppress all stdout messages unrelated 2753 * to out of sync files. 2754 * All stderr messages are still printed though. 2755 * 2756 */ 2757 static int 2758 update_required(char *root) 2759 { 2760 struct stat sb; 2761 char path[PATH_MAX]; 2762 filelist_t flist; 2763 filelist_t *flistp = &flist; 2764 int ret; 2765 2766 flistp->head = flistp->tail = NULL; 2767 2768 if (is_sparc()) 2769 set_flag(IS_SPARC_TARGET); 2770 2771 /* 2772 * Check if cache directories and archives are present 2773 */ 2774 2775 ret = check_flags_and_files(root); 2776 if (ret < 0) 2777 return (BAM_ERROR); 2778 2779 /* 2780 * In certain deployment scenarios, filestat may not 2781 * exist. Ignore it during boot-archive SMF check. 2782 */ 2783 if (bam_smf_check) { 2784 (void) snprintf(path, sizeof (path), "%s%s", root, FILE_STAT); 2785 if (stat(path, &sb) != 0) 2786 return (0); 2787 } 2788 2789 getoldstat(root); 2790 2791 /* 2792 * Check if the archive contains files that are no longer 2793 * present on the root filesystem. 2794 */ 2795 check4stale(root); 2796 2797 /* 2798 * read list of files 2799 */ 2800 if (read_list(root, flistp) != BAM_SUCCESS) { 2801 clear_walk_args(); 2802 return (BAM_ERROR); 2803 } 2804 2805 assert(flistp->head && flistp->tail); 2806 2807 /* 2808 * At this point either the update is required 2809 * or the decision is pending. In either case 2810 * we need to create new stat nvlist 2811 */ 2812 create_newstat(); 2813 /* 2814 * This walk does 2 things: 2815 * - gets new stat data for every file 2816 * - (optional) compare old and new stat data 2817 */ 2818 ret = walk_list(root, &flist); 2819 2820 /* done with the file list */ 2821 filelist_free(flistp); 2822 2823 /* something went wrong */ 2824 2825 if (ret == BAM_ERROR) { 2826 bam_error(CACHE_FAIL); 2827 return (BAM_ERROR); 2828 } 2829 2830 if (walk_arg.new_nvlp == NULL) { 2831 if (walk_arg.sparcfile != NULL) 2832 (void) fclose(walk_arg.sparcfile); 2833 bam_error(NO_NEW_STAT); 2834 } 2835 2836 /* If nothing was updated, discard newstat. */ 2837 2838 if (!is_dir_flag_on(FILE32, NEED_UPDATE) && 2839 !is_dir_flag_on(FILE64, NEED_UPDATE)) { 2840 clear_walk_args(); 2841 return (0); 2842 } 2843 2844 if (walk_arg.sparcfile != NULL) 2845 (void) fclose(walk_arg.sparcfile); 2846 2847 return (1); 2848 } 2849 2850 static int 2851 flushfs(char *root) 2852 { 2853 char cmd[PATH_MAX + 30]; 2854 2855 (void) snprintf(cmd, sizeof (cmd), "%s -f \"%s\" 2>/dev/null", 2856 LOCKFS_PATH, root); 2857 2858 return (exec_cmd(cmd, NULL)); 2859 } 2860 2861 static int 2862 do_archive_copy(char *source, char *dest) 2863 { 2864 2865 sync(); 2866 2867 /* the equivalent of mv archive-new-$pid boot_archive */ 2868 if (rename(source, dest) != 0) { 2869 (void) unlink(source); 2870 return (BAM_ERROR); 2871 } 2872 2873 if (flushfs(bam_root) != 0) 2874 sync(); 2875 2876 return (BAM_SUCCESS); 2877 } 2878 2879 static int 2880 check_cmdline(filelist_t flist) 2881 { 2882 line_t *lp; 2883 2884 for (lp = flist.head; lp; lp = lp->next) { 2885 if (strstr(lp->line, "Error:") != NULL || 2886 strstr(lp->line, "Inode number overflow") != NULL) { 2887 (void) fprintf(stderr, "%s\n", lp->line); 2888 return (BAM_ERROR); 2889 } 2890 } 2891 2892 return (BAM_SUCCESS); 2893 } 2894 2895 static void 2896 dump_errormsg(filelist_t flist) 2897 { 2898 line_t *lp; 2899 2900 for (lp = flist.head; lp; lp = lp->next) 2901 (void) fprintf(stderr, "%s\n", lp->line); 2902 } 2903 2904 static int 2905 check_archive(char *dest) 2906 { 2907 struct stat sb; 2908 2909 if (stat(dest, &sb) != 0 || !S_ISREG(sb.st_mode) || 2910 sb.st_size < 10000) { 2911 bam_error(ARCHIVE_BAD, dest); 2912 (void) unlink(dest); 2913 return (BAM_ERROR); 2914 } 2915 2916 return (BAM_SUCCESS); 2917 } 2918 2919 /* 2920 * Returns 1 if mkiso is in the expected PATH, 0 otherwise 2921 */ 2922 static int 2923 is_mkisofs() 2924 { 2925 if (access(MKISOFS_PATH, X_OK) == 0) 2926 return (1); 2927 return (0); 2928 } 2929 2930 #define MKISO_PARAMS " -quiet -graft-points -dlrDJN -relaxed-filenames " 2931 2932 static int 2933 create_sparc_archive(char *archive, char *tempname, char *bootblk, char *list) 2934 { 2935 int ret; 2936 char cmdline[3 * PATH_MAX + 64]; 2937 filelist_t flist = {0}; 2938 const char *func = "create_sparc_archive()"; 2939 2940 if (access(bootblk, R_OK) == 1) { 2941 bam_error(BOOTBLK_FAIL, bootblk); 2942 return (BAM_ERROR); 2943 } 2944 2945 /* 2946 * Prepare mkisofs command line and execute it 2947 */ 2948 (void) snprintf(cmdline, sizeof (cmdline), "%s %s -G %s -o \"%s\" " 2949 "-path-list \"%s\" 2>&1", MKISOFS_PATH, MKISO_PARAMS, bootblk, 2950 tempname, list); 2951 2952 BAM_DPRINTF((D_CMDLINE, func, cmdline)); 2953 2954 ret = exec_cmd(cmdline, &flist); 2955 if (ret != 0 || check_cmdline(flist) == BAM_ERROR) { 2956 dump_errormsg(flist); 2957 goto out_err; 2958 } 2959 2960 filelist_free(&flist); 2961 2962 /* 2963 * Prepare dd command line to copy the bootblk on the new archive and 2964 * execute it 2965 */ 2966 (void) snprintf(cmdline, sizeof (cmdline), "%s if=\"%s\" of=\"%s\"" 2967 " bs=1b oseek=1 count=15 conv=notrunc conv=sync 2>&1", DD_PATH_USR, 2968 bootblk, tempname); 2969 2970 BAM_DPRINTF((D_CMDLINE, func, cmdline)); 2971 2972 ret = exec_cmd(cmdline, &flist); 2973 if (ret != 0 || check_cmdline(flist) == BAM_ERROR) 2974 goto out_err; 2975 2976 filelist_free(&flist); 2977 2978 /* Did we get a valid archive ? */ 2979 if (check_archive(tempname) == BAM_ERROR) 2980 return (BAM_ERROR); 2981 2982 return (do_archive_copy(tempname, archive)); 2983 2984 out_err: 2985 filelist_free(&flist); 2986 bam_error(ARCHIVE_FAIL, cmdline); 2987 (void) unlink(tempname); 2988 return (BAM_ERROR); 2989 } 2990 2991 static unsigned int 2992 from_733(unsigned char *s) 2993 { 2994 int i; 2995 unsigned int ret = 0; 2996 2997 for (i = 0; i < 4; i++) 2998 ret |= s[i] << (8 * i); 2999 3000 return (ret); 3001 } 3002 3003 static void 3004 to_733(unsigned char *s, unsigned int val) 3005 { 3006 int i; 3007 3008 for (i = 0; i < 4; i++) 3009 s[i] = s[7-i] = (val >> (8 * i)) & 0xFF; 3010 } 3011 3012 /* 3013 * Extends the current boot archive without recreating it from scratch 3014 */ 3015 static int 3016 extend_iso_archive(char *archive, char *tempname, char *update_dir) 3017 { 3018 int fd = -1, newfd = -1, ret, i; 3019 int next_session = 0, new_size = 0; 3020 char cmdline[3 * PATH_MAX + 64]; 3021 const char *func = "extend_iso_archive()"; 3022 filelist_t flist = {0}; 3023 struct iso_pdesc saved_desc[MAX_IVDs]; 3024 3025 fd = open(archive, O_RDWR); 3026 if (fd == -1) { 3027 if (bam_verbose) 3028 bam_error(OPEN_FAIL, archive, strerror(errno)); 3029 goto out_err; 3030 } 3031 3032 /* 3033 * A partial read is likely due to a corrupted file 3034 */ 3035 ret = pread64(fd, saved_desc, sizeof (saved_desc), 3036 VOLDESC_OFF * CD_BLOCK); 3037 if (ret != sizeof (saved_desc)) { 3038 if (bam_verbose) 3039 bam_error(READ_FAIL, archive, strerror(errno)); 3040 goto out_err; 3041 } 3042 3043 if (memcmp(saved_desc[0].type, "\1CD001", 6)) { 3044 if (bam_verbose) 3045 bam_error(SIGN_FAIL, archive); 3046 goto out_err; 3047 } 3048 3049 /* 3050 * Read primary descriptor and locate next_session offset (it should 3051 * point to the end of the archive) 3052 */ 3053 next_session = P2ROUNDUP(from_733(saved_desc[0].volume_space_size), 16); 3054 3055 (void) snprintf(cmdline, sizeof (cmdline), "%s -C 16,%d -M %s %s -o \"" 3056 "%s\" \"%s\" 2>&1", MKISOFS_PATH, next_session, archive, 3057 MKISO_PARAMS, tempname, update_dir); 3058 3059 BAM_DPRINTF((D_CMDLINE, func, cmdline)); 3060 3061 ret = exec_cmd(cmdline, &flist); 3062 if (ret != 0 || check_cmdline(flist) == BAM_ERROR) { 3063 if (bam_verbose) { 3064 bam_error(MULTI_FAIL, cmdline); 3065 dump_errormsg(flist); 3066 } 3067 goto out_flist_err; 3068 } 3069 filelist_free(&flist); 3070 3071 newfd = open(tempname, O_RDONLY); 3072 if (newfd == -1) { 3073 if (bam_verbose) 3074 bam_error(OPEN_FAIL, archive, strerror(errno)); 3075 goto out_err; 3076 } 3077 3078 ret = pread64(newfd, saved_desc, sizeof (saved_desc), 3079 VOLDESC_OFF * CD_BLOCK); 3080 if (ret != sizeof (saved_desc)) { 3081 if (bam_verbose) 3082 bam_error(READ_FAIL, archive, strerror(errno)); 3083 goto out_err; 3084 } 3085 3086 if (memcmp(saved_desc[0].type, "\1CD001", 6)) { 3087 if (bam_verbose) 3088 bam_error(SIGN_FAIL, archive); 3089 goto out_err; 3090 } 3091 3092 new_size = from_733(saved_desc[0].volume_space_size) + next_session; 3093 to_733(saved_desc[0].volume_space_size, new_size); 3094 3095 for (i = 1; i < MAX_IVDs; i++) { 3096 if (saved_desc[i].type[0] == (unsigned char)255) 3097 break; 3098 if (memcmp(saved_desc[i].id, "CD001", 5)) 3099 break; 3100 3101 if (bam_verbose) 3102 bam_print("%s: Updating descriptor entry [%d]\n", func, 3103 i); 3104 3105 to_733(saved_desc[i].volume_space_size, new_size); 3106 } 3107 3108 ret = pwrite64(fd, saved_desc, DVD_BLOCK, VOLDESC_OFF*CD_BLOCK); 3109 if (ret != DVD_BLOCK) { 3110 if (bam_verbose) 3111 bam_error(WRITE_FAIL, archive, strerror(errno)); 3112 goto out_err; 3113 } 3114 (void) close(newfd); 3115 newfd = -1; 3116 3117 ret = fsync(fd); 3118 if (ret != 0) 3119 sync(); 3120 3121 ret = close(fd); 3122 if (ret != 0) { 3123 if (bam_verbose) 3124 bam_error(CLOSE_FAIL, archive, strerror(errno)); 3125 return (BAM_ERROR); 3126 } 3127 fd = -1; 3128 3129 (void) snprintf(cmdline, sizeof (cmdline), "%s if=%s of=%s bs=32k " 3130 "seek=%d conv=sync 2>&1", DD_PATH_USR, tempname, archive, 3131 (next_session/16)); 3132 3133 BAM_DPRINTF((D_CMDLINE, func, cmdline)); 3134 3135 ret = exec_cmd(cmdline, &flist); 3136 if (ret != 0 || check_cmdline(flist) == BAM_ERROR) { 3137 if (bam_verbose) 3138 bam_error(MULTI_FAIL, cmdline); 3139 goto out_flist_err; 3140 } 3141 filelist_free(&flist); 3142 3143 (void) unlink(tempname); 3144 3145 if (flushfs(bam_root) != 0) 3146 sync(); 3147 3148 if (bam_verbose) 3149 bam_print("boot archive updated successfully\n"); 3150 3151 return (BAM_SUCCESS); 3152 3153 out_flist_err: 3154 filelist_free(&flist); 3155 out_err: 3156 if (fd != -1) 3157 (void) close(fd); 3158 if (newfd != -1) 3159 (void) close(newfd); 3160 return (BAM_ERROR); 3161 } 3162 3163 static int 3164 create_x86_archive(char *archive, char *tempname, char *update_dir) 3165 { 3166 int ret; 3167 char cmdline[3 * PATH_MAX + 64]; 3168 filelist_t flist = {0}; 3169 const char *func = "create_x86_archive()"; 3170 3171 (void) snprintf(cmdline, sizeof (cmdline), "%s %s -o \"%s\" \"%s\" " 3172 "2>&1", MKISOFS_PATH, MKISO_PARAMS, tempname, update_dir); 3173 3174 BAM_DPRINTF((D_CMDLINE, func, cmdline)); 3175 3176 ret = exec_cmd(cmdline, &flist); 3177 if (ret != 0 || check_cmdline(flist) == BAM_ERROR) { 3178 bam_error(ARCHIVE_FAIL, cmdline); 3179 dump_errormsg(flist); 3180 filelist_free(&flist); 3181 (void) unlink(tempname); 3182 return (BAM_ERROR); 3183 } 3184 3185 filelist_free(&flist); 3186 3187 if (check_archive(tempname) == BAM_ERROR) 3188 return (BAM_ERROR); 3189 3190 return (do_archive_copy(tempname, archive)); 3191 } 3192 3193 static int 3194 mkisofs_archive(char *root, int what) 3195 { 3196 int ret; 3197 char temp[PATH_MAX]; 3198 char bootblk[PATH_MAX]; 3199 char boot_archive[PATH_MAX]; 3200 3201 if (what == FILE64 && !is_flag_on(IS_SPARC_TARGET)) 3202 ret = snprintf(temp, sizeof (temp), 3203 "%s%s%s/amd64/archive-new-%d", root, ARCHIVE_PREFIX, 3204 get_machine(), getpid()); 3205 else 3206 ret = snprintf(temp, sizeof (temp), "%s%s%s/archive-new-%d", 3207 root, ARCHIVE_PREFIX, get_machine(), getpid()); 3208 3209 if (ret >= sizeof (temp)) 3210 goto out_path_err; 3211 3212 if (what == FILE64 && !is_flag_on(IS_SPARC_TARGET)) 3213 ret = snprintf(boot_archive, sizeof (boot_archive), 3214 "%s%s%s/amd64%s", root, ARCHIVE_PREFIX, get_machine(), 3215 ARCHIVE_SUFFIX); 3216 else 3217 ret = snprintf(boot_archive, sizeof (boot_archive), 3218 "%s%s%s%s", root, ARCHIVE_PREFIX, get_machine(), 3219 ARCHIVE_SUFFIX); 3220 3221 if (ret >= sizeof (boot_archive)) 3222 goto out_path_err; 3223 3224 bam_print("updating %s\n", boot_archive); 3225 3226 if (is_flag_on(IS_SPARC_TARGET)) { 3227 ret = snprintf(bootblk, sizeof (bootblk), 3228 "%s/platform/%s/lib/fs/hsfs/bootblk", root, get_machine()); 3229 if (ret >= sizeof (bootblk)) 3230 goto out_path_err; 3231 3232 ret = create_sparc_archive(boot_archive, temp, bootblk, 3233 get_cachedir(what)); 3234 } else { 3235 if (!is_dir_flag_on(what, NO_MULTI)) { 3236 if (bam_verbose) 3237 bam_print("Attempting to extend x86 archive: " 3238 "%s\n", boot_archive); 3239 3240 ret = extend_iso_archive(boot_archive, temp, 3241 get_updatedir(what)); 3242 if (ret == BAM_SUCCESS) { 3243 if (bam_verbose) 3244 bam_print("Successfully extended %s\n", 3245 boot_archive); 3246 3247 (void) rmdir_r(get_updatedir(what)); 3248 return (BAM_SUCCESS); 3249 } 3250 } 3251 /* 3252 * The boot archive will be recreated from scratch. We get here 3253 * if at least one of these conditions is true: 3254 * - bootadm was called without the -e switch 3255 * - the archive (or the archive cache) doesn't exist 3256 * - archive size is bigger than BA_SIZE_MAX 3257 * - more than COUNT_MAX files need to be updated 3258 * - an error occourred either populating the /updates directory 3259 * or extend_iso_archive() failed 3260 */ 3261 if (bam_verbose) 3262 bam_print("Unable to extend %s... rebuilding archive\n", 3263 boot_archive); 3264 3265 if (get_updatedir(what)[0] != '\0') 3266 (void) rmdir_r(get_updatedir(what)); 3267 3268 3269 ret = create_x86_archive(boot_archive, temp, 3270 get_cachedir(what)); 3271 } 3272 3273 if (ret == BAM_SUCCESS && bam_verbose) 3274 bam_print("Successfully created %s\n", boot_archive); 3275 3276 return (ret); 3277 3278 out_path_err: 3279 bam_error(PATH_TOO_LONG, root); 3280 return (BAM_ERROR); 3281 } 3282 3283 static error_t 3284 create_ramdisk(char *root) 3285 { 3286 char *cmdline, path[PATH_MAX]; 3287 size_t len; 3288 struct stat sb; 3289 int ret, what, status = BAM_SUCCESS; 3290 3291 /* If there is mkisofs, use it to create the required archives */ 3292 if (is_mkisofs()) { 3293 for (what = FILE32; what < CACHEDIR_NUM; what++) { 3294 if (has_cachedir(what) && is_dir_flag_on(what, 3295 NEED_UPDATE)) { 3296 ret = mkisofs_archive(root, what); 3297 if (ret != 0) 3298 status = BAM_ERROR; 3299 } 3300 } 3301 return (status); 3302 } 3303 3304 /* 3305 * Else setup command args for create_ramdisk.ksh for the UFS archives 3306 */ 3307 if (bam_verbose) 3308 bam_print("mkisofs not found, creating UFS archive\n"); 3309 3310 (void) snprintf(path, sizeof (path), "%s/%s", root, CREATE_RAMDISK); 3311 if (stat(path, &sb) != 0) { 3312 bam_error(ARCH_EXEC_MISS, path, strerror(errno)); 3313 return (BAM_ERROR); 3314 } 3315 3316 if (is_safe_exec(path) == BAM_ERROR) 3317 return (BAM_ERROR); 3318 3319 len = strlen(path) + strlen(root) + 10; /* room for space + -R */ 3320 if (bam_alt_platform) 3321 len += strlen(bam_platform) + strlen("-p "); 3322 cmdline = s_calloc(1, len); 3323 3324 if (bam_alt_platform) { 3325 assert(strlen(root) > 1); 3326 (void) snprintf(cmdline, len, "%s -p %s -R %s", 3327 path, bam_platform, root); 3328 /* chop off / at the end */ 3329 cmdline[strlen(cmdline) - 1] = '\0'; 3330 } else if (strlen(root) > 1) { 3331 (void) snprintf(cmdline, len, "%s -R %s", path, root); 3332 /* chop off / at the end */ 3333 cmdline[strlen(cmdline) - 1] = '\0'; 3334 } else 3335 (void) snprintf(cmdline, len, "%s", path); 3336 3337 if (exec_cmd(cmdline, NULL) != 0) { 3338 bam_error(ARCHIVE_FAIL, cmdline); 3339 free(cmdline); 3340 return (BAM_ERROR); 3341 } 3342 free(cmdline); 3343 /* 3344 * The existence of the expected archives used to be 3345 * verified here. This check is done in create_ramdisk as 3346 * it needs to be in sync with the altroot operated upon. 3347 */ 3348 return (BAM_SUCCESS); 3349 } 3350 3351 /* 3352 * Checks if target filesystem is on a ramdisk 3353 * 1 - is miniroot 3354 * 0 - is not 3355 * When in doubt assume it is not a ramdisk. 3356 */ 3357 static int 3358 is_ramdisk(char *root) 3359 { 3360 struct extmnttab mnt; 3361 FILE *fp; 3362 int found; 3363 char mntpt[PATH_MAX]; 3364 char *cp; 3365 3366 /* 3367 * There are 3 situations where creating archive is 3368 * of dubious value: 3369 * - create boot_archive on a lofi-mounted boot_archive 3370 * - create it on a ramdisk which is the root filesystem 3371 * - create it on a ramdisk mounted somewhere else 3372 * The first is not easy to detect and checking for it is not 3373 * worth it. 3374 * The other two conditions are handled here 3375 */ 3376 fp = fopen(MNTTAB, "r"); 3377 if (fp == NULL) { 3378 bam_error(OPEN_FAIL, MNTTAB, strerror(errno)); 3379 return (0); 3380 } 3381 3382 resetmnttab(fp); 3383 3384 /* 3385 * Remove any trailing / from the mount point 3386 */ 3387 (void) strlcpy(mntpt, root, sizeof (mntpt)); 3388 if (strcmp(root, "/") != 0) { 3389 cp = mntpt + strlen(mntpt) - 1; 3390 if (*cp == '/') 3391 *cp = '\0'; 3392 } 3393 found = 0; 3394 while (getextmntent(fp, &mnt, sizeof (mnt)) == 0) { 3395 if (strcmp(mnt.mnt_mountp, mntpt) == 0) { 3396 found = 1; 3397 break; 3398 } 3399 } 3400 3401 if (!found) { 3402 if (bam_verbose) 3403 bam_error(NOT_IN_MNTTAB, mntpt); 3404 (void) fclose(fp); 3405 return (0); 3406 } 3407 3408 if (strstr(mnt.mnt_special, RAMDISK_SPECIAL) != NULL) { 3409 if (bam_verbose) 3410 bam_error(IS_RAMDISK, bam_root); 3411 (void) fclose(fp); 3412 return (1); 3413 } 3414 3415 (void) fclose(fp); 3416 3417 return (0); 3418 } 3419 3420 static int 3421 is_boot_archive(char *root) 3422 { 3423 char path[PATH_MAX]; 3424 struct stat sb; 3425 int error; 3426 const char *fcn = "is_boot_archive()"; 3427 3428 /* 3429 * We can't create an archive without the create_ramdisk script 3430 */ 3431 (void) snprintf(path, sizeof (path), "%s/%s", root, CREATE_RAMDISK); 3432 error = stat(path, &sb); 3433 INJECT_ERROR1("NOT_ARCHIVE_BASED", error = -1); 3434 if (error == -1) { 3435 if (bam_verbose) 3436 bam_print(FILE_MISS, path); 3437 BAM_DPRINTF((D_NOT_ARCHIVE_BOOT, fcn, root)); 3438 return (0); 3439 } 3440 3441 BAM_DPRINTF((D_IS_ARCHIVE_BOOT, fcn, root)); 3442 return (1); 3443 } 3444 3445 /* 3446 * Need to call this for anything that operates on the GRUB menu 3447 * In the x86 live upgrade case the directory /boot/grub may be present 3448 * even on pre-newboot BEs. The authoritative way to check for a GRUB target 3449 * is to check for the presence of the stage2 binary which is present 3450 * only on GRUB targets (even on x86 boot partitions). Checking for the 3451 * presence of the multiboot binary is not correct as it is not present 3452 * on x86 boot partitions. 3453 */ 3454 int 3455 is_grub(const char *root) 3456 { 3457 char path[PATH_MAX]; 3458 struct stat sb; 3459 const char *fcn = "is_grub()"; 3460 3461 (void) snprintf(path, sizeof (path), "%s%s", root, GRUB_STAGE2); 3462 if (stat(path, &sb) == -1) { 3463 BAM_DPRINTF((D_NO_GRUB_DIR, fcn, path)); 3464 return (0); 3465 } 3466 3467 return (1); 3468 } 3469 3470 static int 3471 is_zfs(char *root) 3472 { 3473 struct statvfs vfs; 3474 int ret; 3475 const char *fcn = "is_zfs()"; 3476 3477 ret = statvfs(root, &vfs); 3478 INJECT_ERROR1("STATVFS_ZFS", ret = 1); 3479 if (ret != 0) { 3480 bam_error(STATVFS_FAIL, root, strerror(errno)); 3481 return (0); 3482 } 3483 3484 if (strncmp(vfs.f_basetype, "zfs", strlen("zfs")) == 0) { 3485 BAM_DPRINTF((D_IS_ZFS, fcn, root)); 3486 return (1); 3487 } else { 3488 BAM_DPRINTF((D_IS_NOT_ZFS, fcn, root)); 3489 return (0); 3490 } 3491 } 3492 3493 static int 3494 is_ufs(char *root) 3495 { 3496 struct statvfs vfs; 3497 int ret; 3498 const char *fcn = "is_ufs()"; 3499 3500 ret = statvfs(root, &vfs); 3501 INJECT_ERROR1("STATVFS_UFS", ret = 1); 3502 if (ret != 0) { 3503 bam_error(STATVFS_FAIL, root, strerror(errno)); 3504 return (0); 3505 } 3506 3507 if (strncmp(vfs.f_basetype, "ufs", strlen("ufs")) == 0) { 3508 BAM_DPRINTF((D_IS_UFS, fcn, root)); 3509 return (1); 3510 } else { 3511 BAM_DPRINTF((D_IS_NOT_UFS, fcn, root)); 3512 return (0); 3513 } 3514 } 3515 3516 static int 3517 is_pcfs(char *root) 3518 { 3519 struct statvfs vfs; 3520 int ret; 3521 const char *fcn = "is_pcfs()"; 3522 3523 ret = statvfs(root, &vfs); 3524 INJECT_ERROR1("STATVFS_PCFS", ret = 1); 3525 if (ret != 0) { 3526 bam_error(STATVFS_FAIL, root, strerror(errno)); 3527 return (0); 3528 } 3529 3530 if (strncmp(vfs.f_basetype, "pcfs", strlen("pcfs")) == 0) { 3531 BAM_DPRINTF((D_IS_PCFS, fcn, root)); 3532 return (1); 3533 } else { 3534 BAM_DPRINTF((D_IS_NOT_PCFS, fcn, root)); 3535 return (0); 3536 } 3537 } 3538 3539 static int 3540 is_readonly(char *root) 3541 { 3542 int fd; 3543 int error; 3544 char testfile[PATH_MAX]; 3545 const char *fcn = "is_readonly()"; 3546 3547 /* 3548 * Using statvfs() to check for a read-only filesystem is not 3549 * reliable. The only way to reliably test is to attempt to 3550 * create a file 3551 */ 3552 (void) snprintf(testfile, sizeof (testfile), "%s/%s.%d", 3553 root, BOOTADM_RDONLY_TEST, getpid()); 3554 3555 (void) unlink(testfile); 3556 3557 errno = 0; 3558 fd = open(testfile, O_RDWR|O_CREAT|O_EXCL, 0644); 3559 error = errno; 3560 INJECT_ERROR2("RDONLY_TEST_ERROR", fd = -1, error = EACCES); 3561 if (fd == -1 && error == EROFS) { 3562 BAM_DPRINTF((D_RDONLY_FS, fcn, root)); 3563 return (1); 3564 } else if (fd == -1) { 3565 bam_error(RDONLY_TEST_ERROR, root, strerror(error)); 3566 } 3567 3568 (void) close(fd); 3569 (void) unlink(testfile); 3570 3571 BAM_DPRINTF((D_RDWR_FS, fcn, root)); 3572 return (0); 3573 } 3574 3575 static error_t 3576 update_archive(char *root, char *opt) 3577 { 3578 error_t ret; 3579 3580 assert(root); 3581 assert(opt == NULL); 3582 3583 init_walk_args(); 3584 (void) umask(022); 3585 3586 /* 3587 * root must belong to a boot archive based OS, 3588 */ 3589 if (!is_boot_archive(root)) { 3590 /* 3591 * Emit message only if not in context of update_all. 3592 * If in update_all, emit only if verbose flag is set. 3593 */ 3594 if (!bam_update_all || bam_verbose) 3595 bam_print(NOT_ARCHIVE_BOOT, root); 3596 return (BAM_ERROR); 3597 } 3598 3599 /* 3600 * If smf check is requested when / is writable (can happen 3601 * on first reboot following an upgrade because service 3602 * dependency is messed up), skip the check. 3603 */ 3604 if (bam_smf_check && !bam_root_readonly && !is_zfs(root)) 3605 return (BAM_SUCCESS); 3606 3607 /* 3608 * Don't generate archive on ramdisk. 3609 */ 3610 if (is_ramdisk(root)) 3611 return (BAM_SUCCESS); 3612 3613 /* 3614 * root must be writable. This check applies to alternate 3615 * root (-R option); bam_root_readonly applies to '/' only. 3616 * The behaviour translates into being the one of a 'check'. 3617 */ 3618 if (!bam_smf_check && !bam_check && is_readonly(root)) { 3619 set_flag(RDONLY_FSCHK); 3620 bam_check = 1; 3621 } 3622 3623 /* 3624 * Now check if an update is really needed. 3625 */ 3626 ret = update_required(root); 3627 3628 /* 3629 * The check command (-n) is *not* a dry run. 3630 * It only checks if the archive is in sync. 3631 * A readonly filesystem has to be considered an error only if an update 3632 * is required. 3633 */ 3634 if (bam_nowrite()) { 3635 if (is_flag_on(RDONLY_FSCHK)) { 3636 bam_check = bam_saved_check; 3637 if (ret > 0) 3638 bam_error(RDONLY_FS, root); 3639 if (bam_update_all) 3640 return ((ret != 0) ? BAM_ERROR : BAM_SUCCESS); 3641 } 3642 3643 bam_exit((ret != 0) ? 1 : 0); 3644 } 3645 3646 if (ret == 1) { 3647 /* create the ramdisk */ 3648 ret = create_ramdisk(root); 3649 } 3650 3651 /* 3652 * if the archive is updated, save the new stat data and update the 3653 * timestamp file 3654 */ 3655 if (ret == 0 && walk_arg.new_nvlp != NULL) { 3656 savenew(root); 3657 update_timestamp(root); 3658 } 3659 3660 clear_walk_args(); 3661 3662 return (ret); 3663 } 3664 3665 static char * 3666 find_root_pool() 3667 { 3668 char *special = get_special("/"); 3669 char *p; 3670 3671 if (special == NULL) 3672 return (NULL); 3673 3674 if (*special == '/') { 3675 free(special); 3676 return (NULL); 3677 } 3678 3679 if ((p = strchr(special, '/')) != NULL) 3680 *p = '\0'; 3681 3682 return (special); 3683 } 3684 3685 static error_t 3686 synchronize_BE_menu(void) 3687 { 3688 struct stat sb; 3689 char cmdline[PATH_MAX]; 3690 char cksum_line[PATH_MAX]; 3691 filelist_t flist = {0}; 3692 char *old_cksum_str; 3693 char *old_size_str; 3694 char *old_file; 3695 char *curr_cksum_str; 3696 char *curr_size_str; 3697 char *curr_file; 3698 char *pool; 3699 FILE *cfp; 3700 int found; 3701 int ret; 3702 const char *fcn = "synchronize_BE_menu()"; 3703 3704 BAM_DPRINTF((D_FUNC_ENTRY0, fcn)); 3705 3706 /* Check if findroot enabled LU BE */ 3707 if (stat(FINDROOT_INSTALLGRUB, &sb) != 0) { 3708 BAM_DPRINTF((D_NOT_LU_BE, fcn)); 3709 return (BAM_SUCCESS); 3710 } 3711 3712 if (stat(LU_MENU_CKSUM, &sb) != 0) { 3713 BAM_DPRINTF((D_NO_CKSUM_FILE, fcn, LU_MENU_CKSUM)); 3714 goto menu_sync; 3715 } 3716 3717 cfp = fopen(LU_MENU_CKSUM, "r"); 3718 INJECT_ERROR1("CKSUM_FILE_MISSING", cfp = NULL); 3719 if (cfp == NULL) { 3720 bam_error(CANNOT_READ_LU_CKSUM, LU_MENU_CKSUM); 3721 goto menu_sync; 3722 } 3723 BAM_DPRINTF((D_CKSUM_FILE_OPENED, fcn, LU_MENU_CKSUM)); 3724 3725 found = 0; 3726 while (s_fgets(cksum_line, sizeof (cksum_line), cfp) != NULL) { 3727 INJECT_ERROR1("MULTIPLE_CKSUM", found = 1); 3728 if (found) { 3729 bam_error(MULTIPLE_LU_CKSUM, LU_MENU_CKSUM); 3730 (void) fclose(cfp); 3731 goto menu_sync; 3732 } 3733 found = 1; 3734 } 3735 BAM_DPRINTF((D_CKSUM_FILE_READ, fcn, LU_MENU_CKSUM)); 3736 3737 3738 old_cksum_str = strtok(cksum_line, " \t"); 3739 old_size_str = strtok(NULL, " \t"); 3740 old_file = strtok(NULL, " \t"); 3741 3742 INJECT_ERROR1("OLD_CKSUM_NULL", old_cksum_str = NULL); 3743 INJECT_ERROR1("OLD_SIZE_NULL", old_size_str = NULL); 3744 INJECT_ERROR1("OLD_FILE_NULL", old_file = NULL); 3745 if (old_cksum_str == NULL || old_size_str == NULL || old_file == NULL) { 3746 bam_error(CANNOT_PARSE_LU_CKSUM, LU_MENU_CKSUM); 3747 goto menu_sync; 3748 } 3749 BAM_DPRINTF((D_CKSUM_FILE_PARSED, fcn, LU_MENU_CKSUM)); 3750 3751 /* Get checksum of current menu */ 3752 pool = find_root_pool(); 3753 (void) snprintf(cmdline, sizeof (cmdline), "%s %s%s%s", 3754 CKSUM, pool == NULL ? "" : "/", pool == NULL ? "" : pool, 3755 GRUB_MENU); 3756 free(pool); 3757 ret = exec_cmd(cmdline, &flist); 3758 INJECT_ERROR1("GET_CURR_CKSUM", ret = 1); 3759 if (ret != 0) { 3760 bam_error(MENU_CKSUM_FAIL); 3761 return (BAM_ERROR); 3762 } 3763 BAM_DPRINTF((D_CKSUM_GEN_SUCCESS, fcn)); 3764 3765 INJECT_ERROR1("GET_CURR_CKSUM_OUTPUT", flist.head = NULL); 3766 if ((flist.head == NULL) || (flist.head != flist.tail)) { 3767 bam_error(BAD_CKSUM); 3768 filelist_free(&flist); 3769 return (BAM_ERROR); 3770 } 3771 BAM_DPRINTF((D_CKSUM_GEN_OUTPUT_VALID, fcn)); 3772 3773 curr_cksum_str = strtok(flist.head->line, " \t"); 3774 curr_size_str = strtok(NULL, " \t"); 3775 curr_file = strtok(NULL, " \t"); 3776 3777 INJECT_ERROR1("CURR_CKSUM_NULL", curr_cksum_str = NULL); 3778 INJECT_ERROR1("CURR_SIZE_NULL", curr_size_str = NULL); 3779 INJECT_ERROR1("CURR_FILE_NULL", curr_file = NULL); 3780 if (curr_cksum_str == NULL || curr_size_str == NULL || 3781 curr_file == NULL) { 3782 bam_error(BAD_CKSUM_PARSE); 3783 filelist_free(&flist); 3784 return (BAM_ERROR); 3785 } 3786 BAM_DPRINTF((D_CKSUM_GEN_PARSED, fcn)); 3787 3788 if (strcmp(old_cksum_str, curr_cksum_str) == 0 && 3789 strcmp(old_size_str, curr_size_str) == 0 && 3790 strcmp(old_file, curr_file) == 0) { 3791 filelist_free(&flist); 3792 BAM_DPRINTF((D_CKSUM_NO_CHANGE, fcn)); 3793 return (BAM_SUCCESS); 3794 } 3795 3796 filelist_free(&flist); 3797 3798 /* cksum doesn't match - the menu has changed */ 3799 BAM_DPRINTF((D_CKSUM_HAS_CHANGED, fcn)); 3800 3801 menu_sync: 3802 bam_print(PROP_GRUB_MENU); 3803 3804 (void) snprintf(cmdline, sizeof (cmdline), 3805 "/bin/sh -c '. %s > /dev/null; %s %s yes > /dev/null'", 3806 LULIB, LULIB_PROPAGATE_FILE, GRUB_MENU); 3807 ret = exec_cmd(cmdline, NULL); 3808 INJECT_ERROR1("PROPAGATE_MENU", ret = 1); 3809 if (ret != 0) { 3810 bam_error(MENU_PROP_FAIL); 3811 return (BAM_ERROR); 3812 } 3813 BAM_DPRINTF((D_PROPAGATED_MENU, fcn)); 3814 3815 (void) snprintf(cmdline, sizeof (cmdline), "/bin/cp %s %s > /dev/null", 3816 GRUB_MENU, GRUB_BACKUP_MENU); 3817 ret = exec_cmd(cmdline, NULL); 3818 INJECT_ERROR1("CREATE_BACKUP", ret = 1); 3819 if (ret != 0) { 3820 bam_error(MENU_BACKUP_FAIL, GRUB_BACKUP_MENU); 3821 return (BAM_ERROR); 3822 } 3823 BAM_DPRINTF((D_CREATED_BACKUP, fcn, GRUB_BACKUP_MENU)); 3824 3825 (void) snprintf(cmdline, sizeof (cmdline), 3826 "/bin/sh -c '. %s > /dev/null; %s %s no > /dev/null'", 3827 LULIB, LULIB_PROPAGATE_FILE, GRUB_BACKUP_MENU); 3828 ret = exec_cmd(cmdline, NULL); 3829 INJECT_ERROR1("PROPAGATE_BACKUP", ret = 1); 3830 if (ret != 0) { 3831 bam_error(BACKUP_PROP_FAIL, GRUB_BACKUP_MENU); 3832 return (BAM_ERROR); 3833 } 3834 BAM_DPRINTF((D_PROPAGATED_BACKUP, fcn, GRUB_BACKUP_MENU)); 3835 3836 (void) snprintf(cmdline, sizeof (cmdline), "%s %s > %s", 3837 CKSUM, GRUB_MENU, LU_MENU_CKSUM); 3838 ret = exec_cmd(cmdline, NULL); 3839 INJECT_ERROR1("CREATE_CKSUM_FILE", ret = 1); 3840 if (ret != 0) { 3841 bam_error(MENU_CKSUM_WRITE_FAIL, LU_MENU_CKSUM); 3842 return (BAM_ERROR); 3843 } 3844 BAM_DPRINTF((D_CREATED_CKSUM_FILE, fcn, LU_MENU_CKSUM)); 3845 3846 (void) snprintf(cmdline, sizeof (cmdline), 3847 "/bin/sh -c '. %s > /dev/null; %s %s no > /dev/null'", 3848 LULIB, LULIB_PROPAGATE_FILE, LU_MENU_CKSUM); 3849 ret = exec_cmd(cmdline, NULL); 3850 INJECT_ERROR1("PROPAGATE_MENU_CKSUM_FILE", ret = 1); 3851 if (ret != 0) { 3852 bam_error(MENU_CKSUM_PROP_FAIL, LU_MENU_CKSUM); 3853 return (BAM_ERROR); 3854 } 3855 BAM_DPRINTF((D_PROPAGATED_CKSUM_FILE, fcn, LU_MENU_CKSUM)); 3856 3857 return (BAM_SUCCESS); 3858 } 3859 3860 static error_t 3861 update_all(char *root, char *opt) 3862 { 3863 struct extmnttab mnt; 3864 struct stat sb; 3865 FILE *fp; 3866 char multibt[PATH_MAX]; 3867 char creatram[PATH_MAX]; 3868 error_t ret = BAM_SUCCESS; 3869 3870 assert(root); 3871 assert(opt == NULL); 3872 3873 if (bam_rootlen != 1 || *root != '/') { 3874 elide_trailing_slash(root, multibt, sizeof (multibt)); 3875 bam_error(ALT_ROOT_INVALID, multibt); 3876 return (BAM_ERROR); 3877 } 3878 3879 /* 3880 * Check to see if we are in the midst of safemode patching 3881 * If so skip building the archive for /. Instead build it 3882 * against the latest bits obtained by creating a fresh lofs 3883 * mount of root. 3884 */ 3885 if (stat(LOFS_PATCH_FILE, &sb) == 0) { 3886 if (mkdir(LOFS_PATCH_MNT, DIR_PERMS) == -1 && 3887 errno != EEXIST) { 3888 bam_error(MKDIR_FAILED, "%s", LOFS_PATCH_MNT, 3889 strerror(errno)); 3890 ret = BAM_ERROR; 3891 goto out; 3892 } 3893 (void) snprintf(multibt, sizeof (multibt), 3894 "/sbin/mount -F lofs -o nosub / %s", LOFS_PATCH_MNT); 3895 if (exec_cmd(multibt, NULL) != 0) { 3896 bam_error(MOUNT_FAILED, LOFS_PATCH_MNT, "lofs"); 3897 ret = BAM_ERROR; 3898 } 3899 if (ret != BAM_ERROR) { 3900 (void) snprintf(rootbuf, sizeof (rootbuf), "%s/", 3901 LOFS_PATCH_MNT); 3902 bam_rootlen = strlen(rootbuf); 3903 if (update_archive(rootbuf, opt) != BAM_SUCCESS) 3904 ret = BAM_ERROR; 3905 /* 3906 * unmount the lofs mount since there could be 3907 * multiple invocations of bootadm -a update_all 3908 */ 3909 (void) snprintf(multibt, sizeof (multibt), 3910 "/sbin/umount %s", LOFS_PATCH_MNT); 3911 if (exec_cmd(multibt, NULL) != 0) { 3912 bam_error(UMOUNT_FAILED, LOFS_PATCH_MNT); 3913 ret = BAM_ERROR; 3914 } 3915 } 3916 } else { 3917 /* 3918 * First update archive for current root 3919 */ 3920 if (update_archive(root, opt) != BAM_SUCCESS) 3921 ret = BAM_ERROR; 3922 } 3923 3924 if (ret == BAM_ERROR) 3925 goto out; 3926 3927 /* 3928 * Now walk the mount table, performing archive update 3929 * for all mounted Newboot root filesystems 3930 */ 3931 fp = fopen(MNTTAB, "r"); 3932 if (fp == NULL) { 3933 bam_error(OPEN_FAIL, MNTTAB, strerror(errno)); 3934 ret = BAM_ERROR; 3935 goto out; 3936 } 3937 3938 resetmnttab(fp); 3939 3940 while (getextmntent(fp, &mnt, sizeof (mnt)) == 0) { 3941 if (mnt.mnt_special == NULL) 3942 continue; 3943 if ((strcmp(mnt.mnt_fstype, MNTTYPE_ZFS) != 0) && 3944 (strncmp(mnt.mnt_special, "/dev/", strlen("/dev/")) != 0)) 3945 continue; 3946 if (strcmp(mnt.mnt_mountp, "/") == 0) 3947 continue; 3948 3949 (void) snprintf(creatram, sizeof (creatram), "%s/%s", 3950 mnt.mnt_mountp, CREATE_RAMDISK); 3951 3952 if (stat(creatram, &sb) == -1) 3953 continue; 3954 3955 /* 3956 * We put a trailing slash to be consistent with root = "/" 3957 * case, such that we don't have to print // in some cases. 3958 */ 3959 (void) snprintf(rootbuf, sizeof (rootbuf), "%s/", 3960 mnt.mnt_mountp); 3961 bam_rootlen = strlen(rootbuf); 3962 3963 /* 3964 * It's possible that other mounts may be an alternate boot 3965 * architecture, so check it again. 3966 */ 3967 if ((get_boot_cap(rootbuf) != BAM_SUCCESS) || 3968 (update_archive(rootbuf, opt) != BAM_SUCCESS)) 3969 ret = BAM_ERROR; 3970 } 3971 3972 (void) fclose(fp); 3973 3974 out: 3975 /* 3976 * We no longer use biosdev for Live Upgrade. Hence 3977 * there is no need to defer (to shutdown time) any fdisk 3978 * updates 3979 */ 3980 if (stat(GRUB_fdisk, &sb) == 0 || stat(GRUB_fdisk_target, &sb) == 0) { 3981 bam_error(FDISK_FILES_FOUND, GRUB_fdisk, GRUB_fdisk_target); 3982 } 3983 3984 /* 3985 * If user has updated menu in current BE, propagate the 3986 * updates to all BEs. 3987 */ 3988 if (sync_menu && synchronize_BE_menu() != BAM_SUCCESS) 3989 ret = BAM_ERROR; 3990 3991 return (ret); 3992 } 3993 3994 static void 3995 append_line(menu_t *mp, line_t *lp) 3996 { 3997 if (mp->start == NULL) { 3998 mp->start = lp; 3999 } else { 4000 mp->end->next = lp; 4001 lp->prev = mp->end; 4002 } 4003 mp->end = lp; 4004 } 4005 4006 void 4007 unlink_line(menu_t *mp, line_t *lp) 4008 { 4009 /* unlink from list */ 4010 if (lp->prev) 4011 lp->prev->next = lp->next; 4012 else 4013 mp->start = lp->next; 4014 if (lp->next) 4015 lp->next->prev = lp->prev; 4016 else 4017 mp->end = lp->prev; 4018 } 4019 4020 static entry_t * 4021 boot_entry_new(menu_t *mp, line_t *start, line_t *end) 4022 { 4023 entry_t *ent, *prev; 4024 const char *fcn = "boot_entry_new()"; 4025 4026 assert(mp); 4027 assert(start); 4028 assert(end); 4029 4030 ent = s_calloc(1, sizeof (entry_t)); 4031 BAM_DPRINTF((D_ENTRY_NEW, fcn)); 4032 ent->start = start; 4033 ent->end = end; 4034 4035 if (mp->entries == NULL) { 4036 mp->entries = ent; 4037 BAM_DPRINTF((D_ENTRY_NEW_FIRST, fcn)); 4038 return (ent); 4039 } 4040 4041 prev = mp->entries; 4042 while (prev->next) 4043 prev = prev->next; 4044 prev->next = ent; 4045 ent->prev = prev; 4046 BAM_DPRINTF((D_ENTRY_NEW_LINKED, fcn)); 4047 return (ent); 4048 } 4049 4050 static void 4051 boot_entry_addline(entry_t *ent, line_t *lp) 4052 { 4053 if (ent) 4054 ent->end = lp; 4055 } 4056 4057 /* 4058 * Check whether cmd matches the one indexed by which, and whether arg matches 4059 * str. which must be either KERNEL_CMD or MODULE_CMD, and a match to the 4060 * respective *_DOLLAR_CMD is also acceptable. The arg is searched using 4061 * strstr(), so it can be a partial match. 4062 */ 4063 static int 4064 check_cmd(const char *cmd, const int which, const char *arg, const char *str) 4065 { 4066 int ret; 4067 const char *fcn = "check_cmd()"; 4068 4069 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, arg, str)); 4070 4071 if ((strcmp(cmd, menu_cmds[which]) != 0) && 4072 (strcmp(cmd, menu_cmds[which + 1]) != 0)) { 4073 BAM_DPRINTF((D_CHECK_CMD_CMD_NOMATCH, 4074 fcn, cmd, menu_cmds[which])); 4075 return (0); 4076 } 4077 ret = (strstr(arg, str) != NULL); 4078 4079 if (ret) { 4080 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 4081 } else { 4082 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 4083 } 4084 4085 return (ret); 4086 } 4087 4088 static error_t 4089 kernel_parser(entry_t *entry, char *cmd, char *arg, int linenum) 4090 { 4091 const char *fcn = "kernel_parser()"; 4092 4093 assert(entry); 4094 assert(cmd); 4095 assert(arg); 4096 4097 if (strcmp(cmd, menu_cmds[KERNEL_CMD]) != 0 && 4098 strcmp(cmd, menu_cmds[KERNEL_DOLLAR_CMD]) != 0) { 4099 BAM_DPRINTF((D_NOT_KERNEL_CMD, fcn, cmd)); 4100 return (BAM_ERROR); 4101 } 4102 4103 if (strncmp(arg, DIRECT_BOOT_32, sizeof (DIRECT_BOOT_32) - 1) == 0) { 4104 BAM_DPRINTF((D_SET_DBOOT_32, fcn, arg)); 4105 entry->flags |= BAM_ENTRY_DBOOT | BAM_ENTRY_32BIT; 4106 } else if (strncmp(arg, DIRECT_BOOT_KERNEL, 4107 sizeof (DIRECT_BOOT_KERNEL) - 1) == 0) { 4108 BAM_DPRINTF((D_SET_DBOOT, fcn, arg)); 4109 entry->flags |= BAM_ENTRY_DBOOT; 4110 } else if (strncmp(arg, DIRECT_BOOT_64, 4111 sizeof (DIRECT_BOOT_64) - 1) == 0) { 4112 BAM_DPRINTF((D_SET_DBOOT_64, fcn, arg)); 4113 entry->flags |= BAM_ENTRY_DBOOT | BAM_ENTRY_64BIT; 4114 } else if (strncmp(arg, DIRECT_BOOT_FAILSAFE_KERNEL, 4115 sizeof (DIRECT_BOOT_FAILSAFE_KERNEL) - 1) == 0) { 4116 BAM_DPRINTF((D_SET_DBOOT_FAILSAFE, fcn, arg)); 4117 entry->flags |= BAM_ENTRY_DBOOT | BAM_ENTRY_FAILSAFE; 4118 } else if (strncmp(arg, DIRECT_BOOT_FAILSAFE_32, 4119 sizeof (DIRECT_BOOT_FAILSAFE_32) - 1) == 0) { 4120 BAM_DPRINTF((D_SET_DBOOT_FAILSAFE_32, fcn, arg)); 4121 entry->flags |= BAM_ENTRY_DBOOT | BAM_ENTRY_FAILSAFE 4122 | BAM_ENTRY_32BIT; 4123 } else if (strncmp(arg, DIRECT_BOOT_FAILSAFE_64, 4124 sizeof (DIRECT_BOOT_FAILSAFE_64) - 1) == 0) { 4125 BAM_DPRINTF((D_SET_DBOOT_FAILSAFE_64, fcn, arg)); 4126 entry->flags |= BAM_ENTRY_DBOOT | BAM_ENTRY_FAILSAFE 4127 | BAM_ENTRY_64BIT; 4128 } else if (strncmp(arg, MULTI_BOOT, sizeof (MULTI_BOOT) - 1) == 0) { 4129 BAM_DPRINTF((D_SET_MULTIBOOT, fcn, arg)); 4130 entry->flags |= BAM_ENTRY_MULTIBOOT; 4131 } else if (strncmp(arg, MULTI_BOOT_FAILSAFE, 4132 sizeof (MULTI_BOOT_FAILSAFE) - 1) == 0) { 4133 BAM_DPRINTF((D_SET_MULTIBOOT_FAILSAFE, fcn, arg)); 4134 entry->flags |= BAM_ENTRY_MULTIBOOT | BAM_ENTRY_FAILSAFE; 4135 } else if (strstr(arg, XEN_KERNEL_SUBSTR)) { 4136 BAM_DPRINTF((D_SET_HV, fcn, arg)); 4137 entry->flags |= BAM_ENTRY_HV; 4138 } else if (!(entry->flags & (BAM_ENTRY_BOOTADM|BAM_ENTRY_LU))) { 4139 BAM_DPRINTF((D_SET_HAND_KERNEL, fcn, arg)); 4140 return (BAM_ERROR); 4141 } else if (strncmp(arg, KERNEL_PREFIX, strlen(KERNEL_PREFIX)) == 0 && 4142 strstr(arg, UNIX_SPACE)) { 4143 entry->flags |= BAM_ENTRY_DBOOT | BAM_ENTRY_32BIT; 4144 } else if (strncmp(arg, KERNEL_PREFIX, strlen(KERNEL_PREFIX)) == 0 && 4145 strstr(arg, AMD_UNIX_SPACE)) { 4146 entry->flags |= BAM_ENTRY_DBOOT | BAM_ENTRY_64BIT; 4147 } else { 4148 BAM_DPRINTF((D_IS_UNKNOWN_KERNEL, fcn, arg)); 4149 bam_error(UNKNOWN_KERNEL_LINE, linenum); 4150 return (BAM_ERROR); 4151 } 4152 4153 return (BAM_SUCCESS); 4154 } 4155 4156 static error_t 4157 module_parser(entry_t *entry, char *cmd, char *arg, int linenum) 4158 { 4159 const char *fcn = "module_parser()"; 4160 4161 assert(entry); 4162 assert(cmd); 4163 assert(arg); 4164 4165 if (strcmp(cmd, menu_cmds[MODULE_CMD]) != 0 && 4166 strcmp(cmd, menu_cmds[MODULE_DOLLAR_CMD]) != 0) { 4167 BAM_DPRINTF((D_NOT_MODULE_CMD, fcn, cmd)); 4168 return (BAM_ERROR); 4169 } 4170 4171 if (strcmp(arg, DIRECT_BOOT_ARCHIVE) == 0 || 4172 strcmp(arg, DIRECT_BOOT_ARCHIVE_32) == 0 || 4173 strcmp(arg, DIRECT_BOOT_ARCHIVE_64) == 0 || 4174 strcmp(arg, MULTIBOOT_ARCHIVE) == 0 || 4175 strcmp(arg, FAILSAFE_ARCHIVE) == 0 || 4176 strcmp(arg, FAILSAFE_ARCHIVE_32) == 0 || 4177 strcmp(arg, FAILSAFE_ARCHIVE_64) == 0 || 4178 strcmp(arg, XEN_KERNEL_MODULE_LINE) == 0 || 4179 strcmp(arg, XEN_KERNEL_MODULE_LINE_ZFS) == 0) { 4180 BAM_DPRINTF((D_BOOTADM_LU_MODULE, fcn, arg)); 4181 return (BAM_SUCCESS); 4182 } else if (!(entry->flags & BAM_ENTRY_BOOTADM) && 4183 !(entry->flags & BAM_ENTRY_LU)) { 4184 /* don't emit warning for hand entries */ 4185 BAM_DPRINTF((D_IS_HAND_MODULE, fcn, arg)); 4186 return (BAM_ERROR); 4187 } else { 4188 BAM_DPRINTF((D_IS_UNKNOWN_MODULE, fcn, arg)); 4189 bam_error(UNKNOWN_MODULE_LINE, linenum); 4190 return (BAM_ERROR); 4191 } 4192 } 4193 4194 /* 4195 * A line in menu.lst looks like 4196 * [ ]*<cmd>[ \t=]*<arg>* 4197 */ 4198 static void 4199 line_parser(menu_t *mp, char *str, int *lineNum, int *entryNum) 4200 { 4201 /* 4202 * save state across calls. This is so that 4203 * header gets the right entry# after title has 4204 * been processed 4205 */ 4206 static line_t *prev = NULL; 4207 static entry_t *curr_ent = NULL; 4208 static int in_liveupgrade = 0; 4209 4210 line_t *lp; 4211 char *cmd, *sep, *arg; 4212 char save, *cp, *line; 4213 menu_flag_t flag = BAM_INVALID; 4214 const char *fcn = "line_parser()"; 4215 4216 if (str == NULL) { 4217 return; 4218 } 4219 4220 /* 4221 * First save a copy of the entire line. 4222 * We use this later to set the line field. 4223 */ 4224 line = s_strdup(str); 4225 4226 /* Eat up leading whitespace */ 4227 while (*str == ' ' || *str == '\t') 4228 str++; 4229 4230 if (*str == '#') { /* comment */ 4231 cmd = s_strdup("#"); 4232 sep = NULL; 4233 arg = s_strdup(str + 1); 4234 flag = BAM_COMMENT; 4235 if (strstr(arg, BAM_LU_HDR) != NULL) { 4236 in_liveupgrade = 1; 4237 } else if (strstr(arg, BAM_LU_FTR) != NULL) { 4238 in_liveupgrade = 0; 4239 } 4240 } else if (*str == '\0') { /* blank line */ 4241 cmd = sep = arg = NULL; 4242 flag = BAM_EMPTY; 4243 } else { 4244 /* 4245 * '=' is not a documented separator in grub syntax. 4246 * However various development bits use '=' as a 4247 * separator. In addition, external users also 4248 * use = as a separator. So we will allow that usage. 4249 */ 4250 cp = str; 4251 while (*str != ' ' && *str != '\t' && *str != '=') { 4252 if (*str == '\0') { 4253 cmd = s_strdup(cp); 4254 sep = arg = NULL; 4255 break; 4256 } 4257 str++; 4258 } 4259 4260 if (*str != '\0') { 4261 save = *str; 4262 *str = '\0'; 4263 cmd = s_strdup(cp); 4264 *str = save; 4265 4266 str++; 4267 save = *str; 4268 *str = '\0'; 4269 sep = s_strdup(str - 1); 4270 *str = save; 4271 4272 while (*str == ' ' || *str == '\t') 4273 str++; 4274 if (*str == '\0') 4275 arg = NULL; 4276 else 4277 arg = s_strdup(str); 4278 } 4279 } 4280 4281 lp = s_calloc(1, sizeof (line_t)); 4282 4283 lp->cmd = cmd; 4284 lp->sep = sep; 4285 lp->arg = arg; 4286 lp->line = line; 4287 lp->lineNum = ++(*lineNum); 4288 if (cmd && strcmp(cmd, menu_cmds[TITLE_CMD]) == 0) { 4289 lp->entryNum = ++(*entryNum); 4290 lp->flags = BAM_TITLE; 4291 if (prev && prev->flags == BAM_COMMENT && 4292 prev->arg && strcmp(prev->arg, BAM_BOOTADM_HDR) == 0) { 4293 prev->entryNum = lp->entryNum; 4294 curr_ent = boot_entry_new(mp, prev, lp); 4295 curr_ent->flags |= BAM_ENTRY_BOOTADM; 4296 BAM_DPRINTF((D_IS_BOOTADM_ENTRY, fcn, arg)); 4297 } else { 4298 curr_ent = boot_entry_new(mp, lp, lp); 4299 if (in_liveupgrade) { 4300 curr_ent->flags |= BAM_ENTRY_LU; 4301 BAM_DPRINTF((D_IS_LU_ENTRY, fcn, arg)); 4302 } 4303 } 4304 curr_ent->entryNum = *entryNum; 4305 } else if (flag != BAM_INVALID) { 4306 /* 4307 * For header comments, the entry# is "fixed up" 4308 * by the subsequent title 4309 */ 4310 lp->entryNum = *entryNum; 4311 lp->flags = flag; 4312 } else { 4313 lp->entryNum = *entryNum; 4314 4315 if (*entryNum == ENTRY_INIT) { 4316 lp->flags = BAM_GLOBAL; 4317 } else { 4318 lp->flags = BAM_ENTRY; 4319 4320 if (cmd && arg) { 4321 if (strcmp(cmd, menu_cmds[ROOT_CMD]) == 0) { 4322 BAM_DPRINTF((D_IS_ROOT_CMD, fcn, arg)); 4323 curr_ent->flags |= BAM_ENTRY_ROOT; 4324 } else if (strcmp(cmd, menu_cmds[FINDROOT_CMD]) 4325 == 0) { 4326 BAM_DPRINTF((D_IS_FINDROOT_CMD, fcn, 4327 arg)); 4328 curr_ent->flags |= BAM_ENTRY_FINDROOT; 4329 } else if (strcmp(cmd, 4330 menu_cmds[CHAINLOADER_CMD]) == 0) { 4331 BAM_DPRINTF((D_IS_CHAINLOADER_CMD, fcn, 4332 arg)); 4333 curr_ent->flags |= 4334 BAM_ENTRY_CHAINLOADER; 4335 } else if (kernel_parser(curr_ent, cmd, arg, 4336 lp->lineNum) != BAM_SUCCESS) { 4337 (void) module_parser(curr_ent, cmd, 4338 arg, lp->lineNum); 4339 } 4340 } 4341 } 4342 } 4343 4344 /* record default, old default, and entry line ranges */ 4345 if (lp->flags == BAM_GLOBAL && 4346 strcmp(lp->cmd, menu_cmds[DEFAULT_CMD]) == 0) { 4347 mp->curdefault = lp; 4348 } else if (lp->flags == BAM_COMMENT && 4349 strncmp(lp->arg, BAM_OLDDEF, strlen(BAM_OLDDEF)) == 0) { 4350 mp->olddefault = lp; 4351 } else if (lp->flags == BAM_COMMENT && 4352 strncmp(lp->arg, BAM_OLD_RC_DEF, strlen(BAM_OLD_RC_DEF)) == 0) { 4353 mp->old_rc_default = lp; 4354 } else if (lp->flags == BAM_ENTRY || 4355 (lp->flags == BAM_COMMENT && 4356 strcmp(lp->arg, BAM_BOOTADM_FTR) == 0)) { 4357 boot_entry_addline(curr_ent, lp); 4358 } 4359 append_line(mp, lp); 4360 4361 prev = lp; 4362 } 4363 4364 void 4365 update_numbering(menu_t *mp) 4366 { 4367 int lineNum; 4368 int entryNum; 4369 int old_default_value; 4370 line_t *lp, *prev, *default_lp, *default_entry; 4371 char buf[PATH_MAX]; 4372 4373 if (mp->start == NULL) { 4374 return; 4375 } 4376 4377 lineNum = LINE_INIT; 4378 entryNum = ENTRY_INIT; 4379 old_default_value = ENTRY_INIT; 4380 lp = default_lp = default_entry = NULL; 4381 4382 prev = NULL; 4383 for (lp = mp->start; lp; prev = lp, lp = lp->next) { 4384 lp->lineNum = ++lineNum; 4385 4386 /* 4387 * Get the value of the default command 4388 */ 4389 if (lp->entryNum == ENTRY_INIT && lp->cmd && 4390 strcmp(lp->cmd, menu_cmds[DEFAULT_CMD]) == 0 && 4391 lp->arg) { 4392 old_default_value = atoi(lp->arg); 4393 default_lp = lp; 4394 } 4395 4396 /* 4397 * If not a booting entry, nothing else to fix for this 4398 * entry 4399 */ 4400 if (lp->entryNum == ENTRY_INIT) 4401 continue; 4402 4403 /* 4404 * Record the position of the default entry. 4405 * The following works because global 4406 * commands like default and timeout should precede 4407 * actual boot entries, so old_default_value 4408 * is already known (or default cmd is missing). 4409 */ 4410 if (default_entry == NULL && 4411 old_default_value != ENTRY_INIT && 4412 lp->entryNum == old_default_value) { 4413 default_entry = lp; 4414 } 4415 4416 /* 4417 * Now fixup the entry number 4418 */ 4419 if (lp->cmd && strcmp(lp->cmd, menu_cmds[TITLE_CMD]) == 0) { 4420 lp->entryNum = ++entryNum; 4421 /* fixup the bootadm header */ 4422 if (prev && prev->flags == BAM_COMMENT && 4423 prev->arg && 4424 strcmp(prev->arg, BAM_BOOTADM_HDR) == 0) { 4425 prev->entryNum = lp->entryNum; 4426 } 4427 } else { 4428 lp->entryNum = entryNum; 4429 } 4430 } 4431 4432 /* 4433 * No default command in menu, simply return 4434 */ 4435 if (default_lp == NULL) { 4436 return; 4437 } 4438 4439 free(default_lp->arg); 4440 free(default_lp->line); 4441 4442 if (default_entry == NULL) { 4443 default_lp->arg = s_strdup("0"); 4444 } else { 4445 (void) snprintf(buf, sizeof (buf), "%d", 4446 default_entry->entryNum); 4447 default_lp->arg = s_strdup(buf); 4448 } 4449 4450 /* 4451 * The following is required since only the line field gets 4452 * written back to menu.lst 4453 */ 4454 (void) snprintf(buf, sizeof (buf), "%s%s%s", 4455 menu_cmds[DEFAULT_CMD], menu_cmds[SEP_CMD], default_lp->arg); 4456 default_lp->line = s_strdup(buf); 4457 } 4458 4459 4460 static menu_t * 4461 menu_read(char *menu_path) 4462 { 4463 FILE *fp; 4464 char buf[BAM_MAXLINE], *cp; 4465 menu_t *mp; 4466 int line, entry, len, n; 4467 4468 mp = s_calloc(1, sizeof (menu_t)); 4469 4470 fp = fopen(menu_path, "r"); 4471 if (fp == NULL) { /* Let the caller handle this error */ 4472 free(mp); 4473 return (NULL); 4474 } 4475 4476 /* Note: GRUB boot entry number starts with 0 */ 4477 line = LINE_INIT; 4478 entry = ENTRY_INIT; 4479 cp = buf; 4480 len = sizeof (buf); 4481 while (s_fgets(cp, len, fp) != NULL) { 4482 n = strlen(cp); 4483 if (cp[n - 1] == '\\') { 4484 len -= n - 1; 4485 assert(len >= 2); 4486 cp += n - 1; 4487 continue; 4488 } 4489 line_parser(mp, buf, &line, &entry); 4490 cp = buf; 4491 len = sizeof (buf); 4492 } 4493 4494 if (fclose(fp) == EOF) { 4495 bam_error(CLOSE_FAIL, menu_path, strerror(errno)); 4496 } 4497 4498 return (mp); 4499 } 4500 4501 static error_t 4502 selector(menu_t *mp, char *opt, int *entry, char **title) 4503 { 4504 char *eq; 4505 char *opt_dup; 4506 int entryNum; 4507 4508 assert(mp); 4509 assert(mp->start); 4510 assert(opt); 4511 4512 opt_dup = s_strdup(opt); 4513 4514 if (entry) 4515 *entry = ENTRY_INIT; 4516 if (title) 4517 *title = NULL; 4518 4519 eq = strchr(opt_dup, '='); 4520 if (eq == NULL) { 4521 bam_error(INVALID_OPT, opt); 4522 free(opt_dup); 4523 return (BAM_ERROR); 4524 } 4525 4526 *eq = '\0'; 4527 if (entry && strcmp(opt_dup, OPT_ENTRY_NUM) == 0) { 4528 assert(mp->end); 4529 entryNum = s_strtol(eq + 1); 4530 if (entryNum < 0 || entryNum > mp->end->entryNum) { 4531 bam_error(INVALID_ENTRY, eq + 1); 4532 free(opt_dup); 4533 return (BAM_ERROR); 4534 } 4535 *entry = entryNum; 4536 } else if (title && strcmp(opt_dup, menu_cmds[TITLE_CMD]) == 0) { 4537 *title = opt + (eq - opt_dup) + 1; 4538 } else { 4539 bam_error(INVALID_OPT, opt); 4540 free(opt_dup); 4541 return (BAM_ERROR); 4542 } 4543 4544 free(opt_dup); 4545 return (BAM_SUCCESS); 4546 } 4547 4548 /* 4549 * If invoked with no titles/entries (opt == NULL) 4550 * only title lines in file are printed. 4551 * 4552 * If invoked with a title or entry #, all 4553 * lines in *every* matching entry are listed 4554 */ 4555 static error_t 4556 list_entry(menu_t *mp, char *menu_path, char *opt) 4557 { 4558 line_t *lp; 4559 int entry = ENTRY_INIT; 4560 int found; 4561 char *title = NULL; 4562 4563 assert(mp); 4564 assert(menu_path); 4565 4566 /* opt is optional */ 4567 BAM_DPRINTF((D_FUNC_ENTRY2, "list_entry", menu_path, 4568 opt ? opt : "<NULL>")); 4569 4570 if (mp->start == NULL) { 4571 bam_error(NO_MENU, menu_path); 4572 return (BAM_ERROR); 4573 } 4574 4575 if (opt != NULL) { 4576 if (selector(mp, opt, &entry, &title) != BAM_SUCCESS) { 4577 return (BAM_ERROR); 4578 } 4579 assert((entry != ENTRY_INIT) ^ (title != NULL)); 4580 } else { 4581 (void) read_globals(mp, menu_path, menu_cmds[DEFAULT_CMD], 0); 4582 (void) read_globals(mp, menu_path, menu_cmds[TIMEOUT_CMD], 0); 4583 } 4584 4585 found = 0; 4586 for (lp = mp->start; lp; lp = lp->next) { 4587 if (lp->flags == BAM_COMMENT || lp->flags == BAM_EMPTY) 4588 continue; 4589 if (opt == NULL && lp->flags == BAM_TITLE) { 4590 bam_print(PRINT_TITLE, lp->entryNum, 4591 lp->arg); 4592 found = 1; 4593 continue; 4594 } 4595 if (entry != ENTRY_INIT && lp->entryNum == entry) { 4596 bam_print(PRINT, lp->line); 4597 found = 1; 4598 continue; 4599 } 4600 4601 /* 4602 * We set the entry value here so that all lines 4603 * in entry get printed. If we subsequently match 4604 * title in other entries, all lines in those 4605 * entries get printed as well. 4606 */ 4607 if (title && lp->flags == BAM_TITLE && lp->arg && 4608 strncmp(title, lp->arg, strlen(title)) == 0) { 4609 bam_print(PRINT, lp->line); 4610 entry = lp->entryNum; 4611 found = 1; 4612 continue; 4613 } 4614 } 4615 4616 if (!found) { 4617 bam_error(NO_MATCH_ENTRY); 4618 return (BAM_ERROR); 4619 } 4620 4621 return (BAM_SUCCESS); 4622 } 4623 4624 int 4625 add_boot_entry(menu_t *mp, 4626 char *title, 4627 char *findroot, 4628 char *kernel, 4629 char *mod_kernel, 4630 char *module, 4631 char *bootfs) 4632 { 4633 int lineNum; 4634 int entryNum; 4635 char linebuf[BAM_MAXLINE]; 4636 menu_cmd_t k_cmd; 4637 menu_cmd_t m_cmd; 4638 const char *fcn = "add_boot_entry()"; 4639 4640 assert(mp); 4641 4642 INJECT_ERROR1("ADD_BOOT_ENTRY_FINDROOT_NULL", findroot = NULL); 4643 if (findroot == NULL) { 4644 bam_error(NULL_FINDROOT); 4645 return (BAM_ERROR); 4646 } 4647 4648 if (title == NULL) { 4649 title = "Solaris"; /* default to Solaris */ 4650 } 4651 if (kernel == NULL) { 4652 bam_error(SUBOPT_MISS, menu_cmds[KERNEL_CMD]); 4653 return (BAM_ERROR); 4654 } 4655 if (module == NULL) { 4656 if (bam_direct != BAM_DIRECT_DBOOT) { 4657 bam_error(SUBOPT_MISS, menu_cmds[MODULE_CMD]); 4658 return (BAM_ERROR); 4659 } 4660 4661 /* Figure the commands out from the kernel line */ 4662 if (strstr(kernel, "$ISADIR") != NULL) { 4663 module = DIRECT_BOOT_ARCHIVE; 4664 k_cmd = KERNEL_DOLLAR_CMD; 4665 m_cmd = MODULE_DOLLAR_CMD; 4666 } else if (strstr(kernel, "amd64") != NULL) { 4667 module = DIRECT_BOOT_ARCHIVE_64; 4668 k_cmd = KERNEL_CMD; 4669 m_cmd = MODULE_CMD; 4670 } else { 4671 module = DIRECT_BOOT_ARCHIVE_32; 4672 k_cmd = KERNEL_CMD; 4673 m_cmd = MODULE_CMD; 4674 } 4675 } else if ((bam_direct == BAM_DIRECT_DBOOT) && 4676 (strstr(kernel, "$ISADIR") != NULL)) { 4677 /* 4678 * If it's a non-failsafe dboot kernel, use the "kernel$" 4679 * command. Otherwise, use "kernel". 4680 */ 4681 k_cmd = KERNEL_DOLLAR_CMD; 4682 m_cmd = MODULE_DOLLAR_CMD; 4683 } else { 4684 k_cmd = KERNEL_CMD; 4685 m_cmd = MODULE_CMD; 4686 } 4687 4688 if (mp->start) { 4689 lineNum = mp->end->lineNum; 4690 entryNum = mp->end->entryNum; 4691 } else { 4692 lineNum = LINE_INIT; 4693 entryNum = ENTRY_INIT; 4694 } 4695 4696 /* 4697 * No separator for comment (HDR/FTR) commands 4698 * The syntax for comments is #<comment> 4699 */ 4700 (void) snprintf(linebuf, sizeof (linebuf), "%s%s", 4701 menu_cmds[COMMENT_CMD], BAM_BOOTADM_HDR); 4702 line_parser(mp, linebuf, &lineNum, &entryNum); 4703 4704 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 4705 menu_cmds[TITLE_CMD], menu_cmds[SEP_CMD], title); 4706 line_parser(mp, linebuf, &lineNum, &entryNum); 4707 4708 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 4709 menu_cmds[FINDROOT_CMD], menu_cmds[SEP_CMD], findroot); 4710 line_parser(mp, linebuf, &lineNum, &entryNum); 4711 BAM_DPRINTF((D_ADD_FINDROOT_NUM, fcn, lineNum, entryNum)); 4712 4713 if (bootfs != NULL) { 4714 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 4715 menu_cmds[BOOTFS_CMD], menu_cmds[SEP_CMD], bootfs); 4716 line_parser(mp, linebuf, &lineNum, &entryNum); 4717 } 4718 4719 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 4720 menu_cmds[k_cmd], menu_cmds[SEP_CMD], kernel); 4721 line_parser(mp, linebuf, &lineNum, &entryNum); 4722 4723 if (mod_kernel != NULL) { 4724 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 4725 menu_cmds[m_cmd], menu_cmds[SEP_CMD], mod_kernel); 4726 line_parser(mp, linebuf, &lineNum, &entryNum); 4727 } 4728 4729 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 4730 menu_cmds[m_cmd], menu_cmds[SEP_CMD], module); 4731 line_parser(mp, linebuf, &lineNum, &entryNum); 4732 4733 (void) snprintf(linebuf, sizeof (linebuf), "%s%s", 4734 menu_cmds[COMMENT_CMD], BAM_BOOTADM_FTR); 4735 line_parser(mp, linebuf, &lineNum, &entryNum); 4736 4737 return (entryNum); 4738 } 4739 4740 error_t 4741 delete_boot_entry(menu_t *mp, int entryNum, int quiet) 4742 { 4743 line_t *lp; 4744 line_t *freed; 4745 entry_t *ent; 4746 entry_t *tmp; 4747 int deleted = 0; 4748 const char *fcn = "delete_boot_entry()"; 4749 4750 assert(entryNum != ENTRY_INIT); 4751 4752 tmp = NULL; 4753 4754 ent = mp->entries; 4755 while (ent) { 4756 lp = ent->start; 4757 /* check entry number and make sure it's a bootadm entry */ 4758 if (lp->flags != BAM_COMMENT || 4759 strcmp(lp->arg, BAM_BOOTADM_HDR) != 0 || 4760 (entryNum != ALL_ENTRIES && lp->entryNum != entryNum)) { 4761 ent = ent->next; 4762 continue; 4763 } 4764 4765 /* free the entry content */ 4766 do { 4767 freed = lp; 4768 lp = lp->next; /* prev stays the same */ 4769 BAM_DPRINTF((D_FREEING_LINE, fcn, freed->lineNum)); 4770 unlink_line(mp, freed); 4771 line_free(freed); 4772 } while (freed != ent->end); 4773 4774 /* free the entry_t structure */ 4775 assert(tmp == NULL); 4776 tmp = ent; 4777 ent = ent->next; 4778 if (tmp->prev) 4779 tmp->prev->next = ent; 4780 else 4781 mp->entries = ent; 4782 if (ent) 4783 ent->prev = tmp->prev; 4784 BAM_DPRINTF((D_FREEING_ENTRY, fcn, tmp->entryNum)); 4785 free(tmp); 4786 tmp = NULL; 4787 deleted = 1; 4788 } 4789 4790 assert(tmp == NULL); 4791 4792 if (!deleted && entryNum != ALL_ENTRIES) { 4793 if (quiet == DBE_PRINTERR) 4794 bam_error(NO_BOOTADM_MATCH); 4795 return (BAM_ERROR); 4796 } 4797 4798 /* 4799 * Now that we have deleted an entry, update 4800 * the entry numbering and the default cmd. 4801 */ 4802 update_numbering(mp); 4803 4804 return (BAM_SUCCESS); 4805 } 4806 4807 static error_t 4808 delete_all_entries(menu_t *mp, char *dummy, char *opt) 4809 { 4810 assert(mp); 4811 assert(dummy == NULL); 4812 assert(opt == NULL); 4813 4814 BAM_DPRINTF((D_FUNC_ENTRY0, "delete_all_entries")); 4815 4816 if (mp->start == NULL) { 4817 bam_print(EMPTY_MENU); 4818 return (BAM_SUCCESS); 4819 } 4820 4821 if (delete_boot_entry(mp, ALL_ENTRIES, DBE_PRINTERR) != BAM_SUCCESS) { 4822 return (BAM_ERROR); 4823 } 4824 4825 return (BAM_WRITE); 4826 } 4827 4828 static FILE * 4829 create_diskmap(char *osroot) 4830 { 4831 FILE *fp; 4832 char cmd[PATH_MAX + 16]; 4833 char path[PATH_MAX]; 4834 const char *fcn = "create_diskmap()"; 4835 4836 /* make sure we have a map file */ 4837 fp = fopen(GRUBDISK_MAP, "r"); 4838 if (fp == NULL) { 4839 int ret; 4840 4841 ret = snprintf(path, sizeof (path), "%s/%s", osroot, 4842 CREATE_DISKMAP); 4843 if (ret >= sizeof (path)) { 4844 bam_error(PATH_TOO_LONG, osroot); 4845 return (NULL); 4846 } 4847 if (is_safe_exec(path) == BAM_ERROR) 4848 return (NULL); 4849 4850 (void) snprintf(cmd, sizeof (cmd), 4851 "%s/%s > /dev/null", osroot, CREATE_DISKMAP); 4852 if (exec_cmd(cmd, NULL) != 0) 4853 return (NULL); 4854 fp = fopen(GRUBDISK_MAP, "r"); 4855 INJECT_ERROR1("DISKMAP_CREATE_FAIL", fp = NULL); 4856 if (fp) { 4857 BAM_DPRINTF((D_CREATED_DISKMAP, fcn, GRUBDISK_MAP)); 4858 } else { 4859 BAM_DPRINTF((D_CREATE_DISKMAP_FAIL, fcn, GRUBDISK_MAP)); 4860 } 4861 } 4862 return (fp); 4863 } 4864 4865 #define SECTOR_SIZE 512 4866 4867 static int 4868 get_partition(char *device) 4869 { 4870 int i, fd, is_pcfs, partno = -1; 4871 struct mboot *mboot; 4872 char boot_sect[SECTOR_SIZE]; 4873 char *wholedisk, *slice; 4874 #ifdef i386 4875 ext_part_t *epp; 4876 uint32_t secnum, numsec; 4877 int rval, pno; 4878 #endif 4879 4880 /* form whole disk (p0) */ 4881 slice = device + strlen(device) - 2; 4882 is_pcfs = (*slice != 's'); 4883 if (!is_pcfs) 4884 *slice = '\0'; 4885 wholedisk = s_calloc(1, strlen(device) + 3); 4886 (void) snprintf(wholedisk, strlen(device) + 3, "%sp0", device); 4887 if (!is_pcfs) 4888 *slice = 's'; 4889 4890 /* read boot sector */ 4891 fd = open(wholedisk, O_RDONLY); 4892 if (fd == -1 || read(fd, boot_sect, SECTOR_SIZE) != SECTOR_SIZE) { 4893 return (partno); 4894 } 4895 (void) close(fd); 4896 4897 #ifdef i386 4898 /* Read/Initialize extended partition information */ 4899 if ((rval = libfdisk_init(&epp, wholedisk, NULL, FDISK_READ_DISK)) 4900 != FDISK_SUCCESS) { 4901 switch (rval) { 4902 /* 4903 * FDISK_EBADLOGDRIVE and FDISK_ENOLOGDRIVE can 4904 * be considered as soft errors and hence 4905 * we do not return 4906 */ 4907 case FDISK_EBADLOGDRIVE: 4908 break; 4909 case FDISK_ENOLOGDRIVE: 4910 break; 4911 default: 4912 free(wholedisk); 4913 return (partno); 4914 break; 4915 } 4916 } 4917 #endif 4918 free(wholedisk); 4919 4920 /* parse fdisk table */ 4921 mboot = (struct mboot *)((void *)boot_sect); 4922 for (i = 0; i < FD_NUMPART; i++) { 4923 struct ipart *part = 4924 (struct ipart *)(uintptr_t)mboot->parts + i; 4925 if (is_pcfs) { /* looking for solaris boot part */ 4926 if (part->systid == 0xbe) { 4927 partno = i; 4928 break; 4929 } 4930 #ifdef i386 4931 } else if (fdisk_is_dos_extended(part->systid)) { 4932 rval = fdisk_get_solaris_part(epp, &pno, &secnum, 4933 &numsec); 4934 if (rval == FDISK_SUCCESS) { 4935 partno = pno - 1; 4936 break; 4937 } 4938 #endif 4939 } else { /* look for solaris partition, old and new */ 4940 #ifdef i386 4941 if ((part->systid == SUNIXOS && 4942 (fdisk_is_linux_swap(epp, part->relsect, 4943 NULL) != 0)) || part->systid == SUNIXOS2) { 4944 #else 4945 if (part->systid == SUNIXOS || 4946 part->systid == SUNIXOS2) { 4947 #endif 4948 partno = i; 4949 break; 4950 } 4951 } 4952 } 4953 #ifdef i386 4954 libfdisk_fini(&epp); 4955 #endif 4956 return (partno); 4957 } 4958 4959 char * 4960 get_grubroot(char *osroot, char *osdev, char *menu_root) 4961 { 4962 char *grubroot; /* (hd#,#,#) */ 4963 char *slice; 4964 char *grubhd; 4965 int fdiskpart; 4966 int found = 0; 4967 char *devname; 4968 char *ctdname = strstr(osdev, "dsk/"); 4969 char linebuf[PATH_MAX]; 4970 FILE *fp; 4971 4972 INJECT_ERROR1("GRUBROOT_INVALID_OSDEV", ctdname = NULL); 4973 if (ctdname == NULL) { 4974 bam_error(INVALID_DEV_DSK, osdev); 4975 return (NULL); 4976 } 4977 4978 if (menu_root && !menu_on_bootdisk(osroot, menu_root)) { 4979 /* menu bears no resemblance to our reality */ 4980 bam_error(CANNOT_GRUBROOT_BOOTDISK, osdev); 4981 return (NULL); 4982 } 4983 4984 ctdname += strlen("dsk/"); 4985 slice = strrchr(ctdname, 's'); 4986 if (slice) 4987 *slice = '\0'; 4988 4989 fp = create_diskmap(osroot); 4990 if (fp == NULL) { 4991 bam_error(DISKMAP_FAIL, osroot); 4992 return (NULL); 4993 } 4994 4995 rewind(fp); 4996 while (s_fgets(linebuf, sizeof (linebuf), fp) != NULL) { 4997 grubhd = strtok(linebuf, " \t\n"); 4998 if (grubhd) 4999 devname = strtok(NULL, " \t\n"); 5000 else 5001 devname = NULL; 5002 if (devname && strcmp(devname, ctdname) == 0) { 5003 found = 1; 5004 break; 5005 } 5006 } 5007 5008 if (slice) 5009 *slice = 's'; 5010 5011 (void) fclose(fp); 5012 fp = NULL; 5013 5014 INJECT_ERROR1("GRUBROOT_BIOSDEV_FAIL", found = 0); 5015 if (found == 0) { 5016 bam_error(BIOSDEV_SKIP, osdev); 5017 return (NULL); 5018 } 5019 5020 fdiskpart = get_partition(osdev); 5021 INJECT_ERROR1("GRUBROOT_FDISK_FAIL", fdiskpart = -1); 5022 if (fdiskpart == -1) { 5023 bam_error(FDISKPART_FAIL, osdev); 5024 return (NULL); 5025 } 5026 5027 grubroot = s_calloc(1, 10); 5028 if (slice) { 5029 (void) snprintf(grubroot, 10, "(hd%s,%d,%c)", 5030 grubhd, fdiskpart, slice[1] + 'a' - '0'); 5031 } else 5032 (void) snprintf(grubroot, 10, "(hd%s,%d)", 5033 grubhd, fdiskpart); 5034 5035 assert(fp == NULL); 5036 assert(strncmp(grubroot, "(hd", strlen("(hd")) == 0); 5037 return (grubroot); 5038 } 5039 5040 static char * 5041 find_primary_common(char *mntpt, char *fstype) 5042 { 5043 char signdir[PATH_MAX]; 5044 char tmpsign[MAXNAMELEN + 1]; 5045 char *lu; 5046 char *ufs; 5047 char *zfs; 5048 DIR *dirp = NULL; 5049 struct dirent *entp; 5050 struct stat sb; 5051 const char *fcn = "find_primary_common()"; 5052 5053 (void) snprintf(signdir, sizeof (signdir), "%s/%s", 5054 mntpt, GRUBSIGN_DIR); 5055 5056 if (stat(signdir, &sb) == -1) { 5057 BAM_DPRINTF((D_NO_SIGNDIR, fcn, signdir)); 5058 return (NULL); 5059 } 5060 5061 dirp = opendir(signdir); 5062 INJECT_ERROR1("SIGNDIR_OPENDIR_FAIL", dirp = NULL); 5063 if (dirp == NULL) { 5064 bam_error(OPENDIR_FAILED, signdir, strerror(errno)); 5065 return (NULL); 5066 } 5067 5068 ufs = zfs = lu = NULL; 5069 5070 while (entp = readdir(dirp)) { 5071 if (strcmp(entp->d_name, ".") == 0 || 5072 strcmp(entp->d_name, "..") == 0) 5073 continue; 5074 5075 (void) snprintf(tmpsign, sizeof (tmpsign), "%s", entp->d_name); 5076 5077 if (lu == NULL && 5078 strncmp(tmpsign, GRUBSIGN_LU_PREFIX, 5079 strlen(GRUBSIGN_LU_PREFIX)) == 0) { 5080 lu = s_strdup(tmpsign); 5081 } 5082 5083 if (ufs == NULL && 5084 strncmp(tmpsign, GRUBSIGN_UFS_PREFIX, 5085 strlen(GRUBSIGN_UFS_PREFIX)) == 0) { 5086 ufs = s_strdup(tmpsign); 5087 } 5088 5089 if (zfs == NULL && 5090 strncmp(tmpsign, GRUBSIGN_ZFS_PREFIX, 5091 strlen(GRUBSIGN_ZFS_PREFIX)) == 0) { 5092 zfs = s_strdup(tmpsign); 5093 } 5094 } 5095 5096 BAM_DPRINTF((D_EXIST_PRIMARY_SIGNS, fcn, 5097 zfs ? zfs : "NULL", 5098 ufs ? ufs : "NULL", 5099 lu ? lu : "NULL")); 5100 5101 if (dirp) { 5102 (void) closedir(dirp); 5103 dirp = NULL; 5104 } 5105 5106 if (strcmp(fstype, "ufs") == 0 && zfs) { 5107 bam_error(SIGN_FSTYPE_MISMATCH, zfs, "ufs"); 5108 free(zfs); 5109 zfs = NULL; 5110 } else if (strcmp(fstype, "zfs") == 0 && ufs) { 5111 bam_error(SIGN_FSTYPE_MISMATCH, ufs, "zfs"); 5112 free(ufs); 5113 ufs = NULL; 5114 } 5115 5116 assert(dirp == NULL); 5117 5118 /* For now, we let Live Upgrade take care of its signature itself */ 5119 if (lu) { 5120 BAM_DPRINTF((D_FREEING_LU_SIGNS, fcn, lu)); 5121 free(lu); 5122 lu = NULL; 5123 } 5124 5125 return (zfs ? zfs : ufs); 5126 } 5127 5128 static char * 5129 find_backup_common(char *mntpt, char *fstype) 5130 { 5131 FILE *bfp = NULL; 5132 char tmpsign[MAXNAMELEN + 1]; 5133 char backup[PATH_MAX]; 5134 char *ufs; 5135 char *zfs; 5136 char *lu; 5137 int error; 5138 const char *fcn = "find_backup_common()"; 5139 5140 /* 5141 * We didn't find it in the primary directory. 5142 * Look at the backup 5143 */ 5144 (void) snprintf(backup, sizeof (backup), "%s%s", 5145 mntpt, GRUBSIGN_BACKUP); 5146 5147 bfp = fopen(backup, "r"); 5148 if (bfp == NULL) { 5149 error = errno; 5150 if (bam_verbose) { 5151 bam_error(OPEN_FAIL, backup, strerror(error)); 5152 } 5153 BAM_DPRINTF((D_OPEN_FAIL, fcn, backup, strerror(error))); 5154 return (NULL); 5155 } 5156 5157 ufs = zfs = lu = NULL; 5158 5159 while (s_fgets(tmpsign, sizeof (tmpsign), bfp) != NULL) { 5160 5161 if (lu == NULL && 5162 strncmp(tmpsign, GRUBSIGN_LU_PREFIX, 5163 strlen(GRUBSIGN_LU_PREFIX)) == 0) { 5164 lu = s_strdup(tmpsign); 5165 } 5166 5167 if (ufs == NULL && 5168 strncmp(tmpsign, GRUBSIGN_UFS_PREFIX, 5169 strlen(GRUBSIGN_UFS_PREFIX)) == 0) { 5170 ufs = s_strdup(tmpsign); 5171 } 5172 5173 if (zfs == NULL && 5174 strncmp(tmpsign, GRUBSIGN_ZFS_PREFIX, 5175 strlen(GRUBSIGN_ZFS_PREFIX)) == 0) { 5176 zfs = s_strdup(tmpsign); 5177 } 5178 } 5179 5180 BAM_DPRINTF((D_EXIST_BACKUP_SIGNS, fcn, 5181 zfs ? zfs : "NULL", 5182 ufs ? ufs : "NULL", 5183 lu ? lu : "NULL")); 5184 5185 if (bfp) { 5186 (void) fclose(bfp); 5187 bfp = NULL; 5188 } 5189 5190 if (strcmp(fstype, "ufs") == 0 && zfs) { 5191 bam_error(SIGN_FSTYPE_MISMATCH, zfs, "ufs"); 5192 free(zfs); 5193 zfs = NULL; 5194 } else if (strcmp(fstype, "zfs") == 0 && ufs) { 5195 bam_error(SIGN_FSTYPE_MISMATCH, ufs, "zfs"); 5196 free(ufs); 5197 ufs = NULL; 5198 } 5199 5200 assert(bfp == NULL); 5201 5202 /* For now, we let Live Upgrade take care of its signature itself */ 5203 if (lu) { 5204 BAM_DPRINTF((D_FREEING_LU_SIGNS, fcn, lu)); 5205 free(lu); 5206 lu = NULL; 5207 } 5208 5209 return (zfs ? zfs : ufs); 5210 } 5211 5212 static char * 5213 find_ufs_existing(char *osroot) 5214 { 5215 char *sign; 5216 const char *fcn = "find_ufs_existing()"; 5217 5218 sign = find_primary_common(osroot, "ufs"); 5219 if (sign == NULL) { 5220 sign = find_backup_common(osroot, "ufs"); 5221 BAM_DPRINTF((D_EXIST_BACKUP_SIGN, fcn, sign ? sign : "NULL")); 5222 } else { 5223 BAM_DPRINTF((D_EXIST_PRIMARY_SIGN, fcn, sign)); 5224 } 5225 5226 return (sign); 5227 } 5228 5229 char * 5230 get_mountpoint(char *special, char *fstype) 5231 { 5232 FILE *mntfp; 5233 struct mnttab mp = {0}; 5234 struct mnttab mpref = {0}; 5235 int error; 5236 int ret; 5237 const char *fcn = "get_mountpoint()"; 5238 5239 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, special, fstype)); 5240 5241 mntfp = fopen(MNTTAB, "r"); 5242 error = errno; 5243 INJECT_ERROR1("MNTTAB_ERR_GET_MNTPT", mntfp = NULL); 5244 if (mntfp == NULL) { 5245 bam_error(OPEN_FAIL, MNTTAB, strerror(error)); 5246 return (NULL); 5247 } 5248 5249 mpref.mnt_special = special; 5250 mpref.mnt_fstype = fstype; 5251 5252 ret = getmntany(mntfp, &mp, &mpref); 5253 INJECT_ERROR1("GET_MOUNTPOINT_MNTANY", ret = 1); 5254 if (ret != 0) { 5255 (void) fclose(mntfp); 5256 BAM_DPRINTF((D_NO_MNTPT, fcn, special, fstype)); 5257 return (NULL); 5258 } 5259 (void) fclose(mntfp); 5260 5261 assert(mp.mnt_mountp); 5262 5263 BAM_DPRINTF((D_GET_MOUNTPOINT_RET, fcn, special, mp.mnt_mountp)); 5264 5265 return (s_strdup(mp.mnt_mountp)); 5266 } 5267 5268 /* 5269 * Mounts a "legacy" top dataset (if needed) 5270 * Returns: The mountpoint of the legacy top dataset or NULL on error 5271 * mnted returns one of the above values defined for zfs_mnted_t 5272 */ 5273 static char * 5274 mount_legacy_dataset(char *pool, zfs_mnted_t *mnted) 5275 { 5276 char cmd[PATH_MAX]; 5277 char tmpmnt[PATH_MAX]; 5278 filelist_t flist = {0}; 5279 char *is_mounted; 5280 struct stat sb; 5281 int ret; 5282 const char *fcn = "mount_legacy_dataset()"; 5283 5284 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, pool)); 5285 5286 *mnted = ZFS_MNT_ERROR; 5287 5288 (void) snprintf(cmd, sizeof (cmd), 5289 "/sbin/zfs get -Ho value mounted %s", 5290 pool); 5291 5292 ret = exec_cmd(cmd, &flist); 5293 INJECT_ERROR1("Z_MOUNT_LEG_GET_MOUNTED_CMD", ret = 1); 5294 if (ret != 0) { 5295 bam_error(ZFS_MNTED_FAILED, pool); 5296 return (NULL); 5297 } 5298 5299 INJECT_ERROR1("Z_MOUNT_LEG_GET_MOUNTED_OUT", flist.head = NULL); 5300 if ((flist.head == NULL) || (flist.head != flist.tail)) { 5301 bam_error(BAD_ZFS_MNTED, pool); 5302 filelist_free(&flist); 5303 return (NULL); 5304 } 5305 5306 is_mounted = strtok(flist.head->line, " \t\n"); 5307 INJECT_ERROR1("Z_MOUNT_LEG_GET_MOUNTED_STRTOK_YES", is_mounted = "yes"); 5308 INJECT_ERROR1("Z_MOUNT_LEG_GET_MOUNTED_STRTOK_NO", is_mounted = "no"); 5309 if (strcmp(is_mounted, "no") != 0) { 5310 filelist_free(&flist); 5311 *mnted = LEGACY_ALREADY; 5312 /* get_mountpoint returns a strdup'ed string */ 5313 BAM_DPRINTF((D_Z_MOUNT_TOP_LEG_ALREADY, fcn, pool)); 5314 return (get_mountpoint(pool, "zfs")); 5315 } 5316 5317 filelist_free(&flist); 5318 5319 /* 5320 * legacy top dataset is not mounted. Mount it now 5321 * First create a mountpoint. 5322 */ 5323 (void) snprintf(tmpmnt, sizeof (tmpmnt), "%s.%d", 5324 ZFS_LEGACY_MNTPT, getpid()); 5325 5326 ret = stat(tmpmnt, &sb); 5327 if (ret == -1) { 5328 BAM_DPRINTF((D_Z_MOUNT_TOP_LEG_MNTPT_ABS, fcn, pool, tmpmnt)); 5329 ret = mkdirp(tmpmnt, DIR_PERMS); 5330 INJECT_ERROR1("Z_MOUNT_TOP_LEG_MNTPT_MKDIRP", ret = -1); 5331 if (ret == -1) { 5332 bam_error(MKDIR_FAILED, tmpmnt, strerror(errno)); 5333 return (NULL); 5334 } 5335 } else { 5336 BAM_DPRINTF((D_Z_MOUNT_TOP_LEG_MNTPT_PRES, fcn, pool, tmpmnt)); 5337 } 5338 5339 (void) snprintf(cmd, sizeof (cmd), 5340 "/sbin/mount -F zfs %s %s", 5341 pool, tmpmnt); 5342 5343 ret = exec_cmd(cmd, NULL); 5344 INJECT_ERROR1("Z_MOUNT_TOP_LEG_MOUNT_CMD", ret = 1); 5345 if (ret != 0) { 5346 bam_error(ZFS_MOUNT_FAILED, pool); 5347 (void) rmdir(tmpmnt); 5348 return (NULL); 5349 } 5350 5351 *mnted = LEGACY_MOUNTED; 5352 BAM_DPRINTF((D_Z_MOUNT_TOP_LEG_MOUNTED, fcn, pool, tmpmnt)); 5353 return (s_strdup(tmpmnt)); 5354 } 5355 5356 /* 5357 * Mounts the top dataset (if needed) 5358 * Returns: The mountpoint of the top dataset or NULL on error 5359 * mnted returns one of the above values defined for zfs_mnted_t 5360 */ 5361 static char * 5362 mount_top_dataset(char *pool, zfs_mnted_t *mnted) 5363 { 5364 char cmd[PATH_MAX]; 5365 filelist_t flist = {0}; 5366 char *is_mounted; 5367 char *mntpt; 5368 char *zmntpt; 5369 int ret; 5370 const char *fcn = "mount_top_dataset()"; 5371 5372 *mnted = ZFS_MNT_ERROR; 5373 5374 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, pool)); 5375 5376 /* 5377 * First check if the top dataset is a "legacy" dataset 5378 */ 5379 (void) snprintf(cmd, sizeof (cmd), 5380 "/sbin/zfs get -Ho value mountpoint %s", 5381 pool); 5382 ret = exec_cmd(cmd, &flist); 5383 INJECT_ERROR1("Z_MOUNT_TOP_GET_MNTPT", ret = 1); 5384 if (ret != 0) { 5385 bam_error(ZFS_MNTPT_FAILED, pool); 5386 return (NULL); 5387 } 5388 5389 if (flist.head && (flist.head == flist.tail)) { 5390 char *legacy = strtok(flist.head->line, " \t\n"); 5391 if (legacy && strcmp(legacy, "legacy") == 0) { 5392 filelist_free(&flist); 5393 BAM_DPRINTF((D_Z_IS_LEGACY, fcn, pool)); 5394 return (mount_legacy_dataset(pool, mnted)); 5395 } 5396 } 5397 5398 filelist_free(&flist); 5399 5400 BAM_DPRINTF((D_Z_IS_NOT_LEGACY, fcn, pool)); 5401 5402 (void) snprintf(cmd, sizeof (cmd), 5403 "/sbin/zfs get -Ho value mounted %s", 5404 pool); 5405 5406 ret = exec_cmd(cmd, &flist); 5407 INJECT_ERROR1("Z_MOUNT_TOP_NONLEG_GET_MOUNTED", ret = 1); 5408 if (ret != 0) { 5409 bam_error(ZFS_MNTED_FAILED, pool); 5410 return (NULL); 5411 } 5412 5413 INJECT_ERROR1("Z_MOUNT_TOP_NONLEG_GET_MOUNTED_VAL", flist.head = NULL); 5414 if ((flist.head == NULL) || (flist.head != flist.tail)) { 5415 bam_error(BAD_ZFS_MNTED, pool); 5416 filelist_free(&flist); 5417 return (NULL); 5418 } 5419 5420 is_mounted = strtok(flist.head->line, " \t\n"); 5421 INJECT_ERROR1("Z_MOUNT_TOP_NONLEG_GET_MOUNTED_YES", is_mounted = "yes"); 5422 INJECT_ERROR1("Z_MOUNT_TOP_NONLEG_GET_MOUNTED_NO", is_mounted = "no"); 5423 if (strcmp(is_mounted, "no") != 0) { 5424 filelist_free(&flist); 5425 *mnted = ZFS_ALREADY; 5426 BAM_DPRINTF((D_Z_MOUNT_TOP_NONLEG_MOUNTED_ALREADY, fcn, pool)); 5427 goto mounted; 5428 } 5429 5430 filelist_free(&flist); 5431 BAM_DPRINTF((D_Z_MOUNT_TOP_NONLEG_MOUNTED_NOT_ALREADY, fcn, pool)); 5432 5433 /* top dataset is not mounted. Mount it now */ 5434 (void) snprintf(cmd, sizeof (cmd), 5435 "/sbin/zfs mount %s", pool); 5436 ret = exec_cmd(cmd, NULL); 5437 INJECT_ERROR1("Z_MOUNT_TOP_NONLEG_MOUNT_CMD", ret = 1); 5438 if (ret != 0) { 5439 bam_error(ZFS_MOUNT_FAILED, pool); 5440 return (NULL); 5441 } 5442 *mnted = ZFS_MOUNTED; 5443 BAM_DPRINTF((D_Z_MOUNT_TOP_NONLEG_MOUNTED_NOW, fcn, pool)); 5444 /*FALLTHRU*/ 5445 mounted: 5446 /* 5447 * Now get the mountpoint 5448 */ 5449 (void) snprintf(cmd, sizeof (cmd), 5450 "/sbin/zfs get -Ho value mountpoint %s", 5451 pool); 5452 5453 ret = exec_cmd(cmd, &flist); 5454 INJECT_ERROR1("Z_MOUNT_TOP_NONLEG_GET_MNTPT_CMD", ret = 1); 5455 if (ret != 0) { 5456 bam_error(ZFS_MNTPT_FAILED, pool); 5457 goto error; 5458 } 5459 5460 INJECT_ERROR1("Z_MOUNT_TOP_NONLEG_GET_MNTPT_OUT", flist.head = NULL); 5461 if ((flist.head == NULL) || (flist.head != flist.tail)) { 5462 bam_error(NULL_ZFS_MNTPT, pool); 5463 goto error; 5464 } 5465 5466 mntpt = strtok(flist.head->line, " \t\n"); 5467 INJECT_ERROR1("Z_MOUNT_TOP_NONLEG_GET_MNTPT_STRTOK", mntpt = "foo"); 5468 if (*mntpt != '/') { 5469 bam_error(BAD_ZFS_MNTPT, pool, mntpt); 5470 goto error; 5471 } 5472 zmntpt = s_strdup(mntpt); 5473 5474 filelist_free(&flist); 5475 5476 BAM_DPRINTF((D_Z_MOUNT_TOP_NONLEG_MNTPT, fcn, pool, zmntpt)); 5477 5478 return (zmntpt); 5479 5480 error: 5481 filelist_free(&flist); 5482 (void) umount_top_dataset(pool, *mnted, NULL); 5483 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 5484 return (NULL); 5485 } 5486 5487 static int 5488 umount_top_dataset(char *pool, zfs_mnted_t mnted, char *mntpt) 5489 { 5490 char cmd[PATH_MAX]; 5491 int ret; 5492 const char *fcn = "umount_top_dataset()"; 5493 5494 INJECT_ERROR1("Z_UMOUNT_TOP_INVALID_STATE", mnted = ZFS_MNT_ERROR); 5495 switch (mnted) { 5496 case LEGACY_ALREADY: 5497 case ZFS_ALREADY: 5498 /* nothing to do */ 5499 BAM_DPRINTF((D_Z_UMOUNT_TOP_ALREADY_NOP, fcn, pool, 5500 mntpt ? mntpt : "NULL")); 5501 free(mntpt); 5502 return (BAM_SUCCESS); 5503 case LEGACY_MOUNTED: 5504 (void) snprintf(cmd, sizeof (cmd), 5505 "/sbin/umount %s", pool); 5506 ret = exec_cmd(cmd, NULL); 5507 INJECT_ERROR1("Z_UMOUNT_TOP_LEGACY_UMOUNT_FAIL", ret = 1); 5508 if (ret != 0) { 5509 bam_error(UMOUNT_FAILED, pool); 5510 free(mntpt); 5511 return (BAM_ERROR); 5512 } 5513 if (mntpt) 5514 (void) rmdir(mntpt); 5515 free(mntpt); 5516 BAM_DPRINTF((D_Z_UMOUNT_TOP_LEGACY, fcn, pool)); 5517 return (BAM_SUCCESS); 5518 case ZFS_MOUNTED: 5519 free(mntpt); 5520 (void) snprintf(cmd, sizeof (cmd), 5521 "/sbin/zfs unmount %s", pool); 5522 ret = exec_cmd(cmd, NULL); 5523 INJECT_ERROR1("Z_UMOUNT_TOP_NONLEG_UMOUNT_FAIL", ret = 1); 5524 if (ret != 0) { 5525 bam_error(UMOUNT_FAILED, pool); 5526 return (BAM_ERROR); 5527 } 5528 BAM_DPRINTF((D_Z_UMOUNT_TOP_NONLEG, fcn, pool)); 5529 return (BAM_SUCCESS); 5530 default: 5531 bam_error(INT_BAD_MNTSTATE, pool); 5532 return (BAM_ERROR); 5533 } 5534 /*NOTREACHED*/ 5535 } 5536 5537 /* 5538 * For ZFS, osdev can be one of two forms 5539 * It can be a "special" file as seen in mnttab: rpool/ROOT/szboot_0402 5540 * It can be a /dev/[r]dsk special file. We handle both instances 5541 */ 5542 static char * 5543 get_pool(char *osdev) 5544 { 5545 char cmd[PATH_MAX]; 5546 char buf[PATH_MAX]; 5547 filelist_t flist = {0}; 5548 char *pool; 5549 char *cp; 5550 char *slash; 5551 int ret; 5552 const char *fcn = "get_pool()"; 5553 5554 INJECT_ERROR1("GET_POOL_OSDEV", osdev = NULL); 5555 if (osdev == NULL) { 5556 bam_error(GET_POOL_OSDEV_NULL); 5557 return (NULL); 5558 } 5559 5560 BAM_DPRINTF((D_GET_POOL_OSDEV, fcn, osdev)); 5561 5562 if (osdev[0] != '/') { 5563 (void) strlcpy(buf, osdev, sizeof (buf)); 5564 slash = strchr(buf, '/'); 5565 if (slash) 5566 *slash = '\0'; 5567 pool = s_strdup(buf); 5568 BAM_DPRINTF((D_GET_POOL_RET, fcn, pool)); 5569 return (pool); 5570 } else if (strncmp(osdev, "/dev/dsk/", strlen("/dev/dsk/")) != 0 && 5571 strncmp(osdev, "/dev/rdsk/", strlen("/dev/rdsk/")) != 0) { 5572 bam_error(GET_POOL_BAD_OSDEV, osdev); 5573 return (NULL); 5574 } 5575 5576 (void) snprintf(cmd, sizeof (cmd), 5577 "/usr/sbin/fstyp -a %s 2>/dev/null | /bin/grep '^name:'", 5578 osdev); 5579 5580 ret = exec_cmd(cmd, &flist); 5581 INJECT_ERROR1("GET_POOL_FSTYP", ret = 1); 5582 if (ret != 0) { 5583 bam_error(FSTYP_A_FAILED, osdev); 5584 return (NULL); 5585 } 5586 5587 INJECT_ERROR1("GET_POOL_FSTYP_OUT", flist.head = NULL); 5588 if ((flist.head == NULL) || (flist.head != flist.tail)) { 5589 bam_error(NULL_FSTYP_A, osdev); 5590 filelist_free(&flist); 5591 return (NULL); 5592 } 5593 5594 (void) strtok(flist.head->line, "'"); 5595 cp = strtok(NULL, "'"); 5596 INJECT_ERROR1("GET_POOL_FSTYP_STRTOK", cp = NULL); 5597 if (cp == NULL) { 5598 bam_error(BAD_FSTYP_A, osdev); 5599 filelist_free(&flist); 5600 return (NULL); 5601 } 5602 5603 pool = s_strdup(cp); 5604 5605 filelist_free(&flist); 5606 5607 BAM_DPRINTF((D_GET_POOL_RET, fcn, pool)); 5608 5609 return (pool); 5610 } 5611 5612 static char * 5613 find_zfs_existing(char *osdev) 5614 { 5615 char *pool; 5616 zfs_mnted_t mnted; 5617 char *mntpt; 5618 char *sign; 5619 const char *fcn = "find_zfs_existing()"; 5620 5621 pool = get_pool(osdev); 5622 INJECT_ERROR1("ZFS_FIND_EXIST_POOL", pool = NULL); 5623 if (pool == NULL) { 5624 bam_error(ZFS_GET_POOL_FAILED, osdev); 5625 return (NULL); 5626 } 5627 5628 mntpt = mount_top_dataset(pool, &mnted); 5629 INJECT_ERROR1("ZFS_FIND_EXIST_MOUNT_TOP", mntpt = NULL); 5630 if (mntpt == NULL) { 5631 bam_error(ZFS_MOUNT_TOP_DATASET_FAILED, pool); 5632 free(pool); 5633 return (NULL); 5634 } 5635 5636 sign = find_primary_common(mntpt, "zfs"); 5637 if (sign == NULL) { 5638 sign = find_backup_common(mntpt, "zfs"); 5639 BAM_DPRINTF((D_EXIST_BACKUP_SIGN, fcn, sign ? sign : "NULL")); 5640 } else { 5641 BAM_DPRINTF((D_EXIST_PRIMARY_SIGN, fcn, sign)); 5642 } 5643 5644 (void) umount_top_dataset(pool, mnted, mntpt); 5645 5646 free(pool); 5647 5648 return (sign); 5649 } 5650 5651 static char * 5652 find_existing_sign(char *osroot, char *osdev, char *fstype) 5653 { 5654 const char *fcn = "find_existing_sign()"; 5655 5656 INJECT_ERROR1("FIND_EXIST_NOTSUP_FS", fstype = "foofs"); 5657 if (strcmp(fstype, "ufs") == 0) { 5658 BAM_DPRINTF((D_CHECK_UFS_EXIST_SIGN, fcn)); 5659 return (find_ufs_existing(osroot)); 5660 } else if (strcmp(fstype, "zfs") == 0) { 5661 BAM_DPRINTF((D_CHECK_ZFS_EXIST_SIGN, fcn)); 5662 return (find_zfs_existing(osdev)); 5663 } else { 5664 bam_error(GRUBSIGN_NOTSUP, fstype); 5665 return (NULL); 5666 } 5667 } 5668 5669 #define MH_HASH_SZ 16 5670 5671 typedef enum { 5672 MH_ERROR = -1, 5673 MH_NOMATCH, 5674 MH_MATCH 5675 } mh_search_t; 5676 5677 typedef struct mcache { 5678 char *mc_special; 5679 char *mc_mntpt; 5680 char *mc_fstype; 5681 struct mcache *mc_next; 5682 } mcache_t; 5683 5684 typedef struct mhash { 5685 mcache_t *mh_hash[MH_HASH_SZ]; 5686 } mhash_t; 5687 5688 static int 5689 mhash_fcn(char *key) 5690 { 5691 int i; 5692 uint64_t sum = 0; 5693 5694 for (i = 0; key[i] != '\0'; i++) { 5695 sum += (uchar_t)key[i]; 5696 } 5697 5698 sum %= MH_HASH_SZ; 5699 5700 assert(sum < MH_HASH_SZ); 5701 5702 return (sum); 5703 } 5704 5705 static mhash_t * 5706 cache_mnttab(void) 5707 { 5708 FILE *mfp; 5709 struct extmnttab mnt; 5710 mcache_t *mcp; 5711 mhash_t *mhp; 5712 char *ctds; 5713 int idx; 5714 int error; 5715 char *special_dup; 5716 const char *fcn = "cache_mnttab()"; 5717 5718 mfp = fopen(MNTTAB, "r"); 5719 error = errno; 5720 INJECT_ERROR1("CACHE_MNTTAB_MNTTAB_ERR", mfp = NULL); 5721 if (mfp == NULL) { 5722 bam_error(OPEN_FAIL, MNTTAB, strerror(error)); 5723 return (NULL); 5724 } 5725 5726 mhp = s_calloc(1, sizeof (mhash_t)); 5727 5728 resetmnttab(mfp); 5729 5730 while (getextmntent(mfp, &mnt, sizeof (mnt)) == 0) { 5731 /* only cache ufs */ 5732 if (strcmp(mnt.mnt_fstype, "ufs") != 0) 5733 continue; 5734 5735 /* basename() modifies its arg, so dup it */ 5736 special_dup = s_strdup(mnt.mnt_special); 5737 ctds = basename(special_dup); 5738 5739 mcp = s_calloc(1, sizeof (mcache_t)); 5740 mcp->mc_special = s_strdup(ctds); 5741 mcp->mc_mntpt = s_strdup(mnt.mnt_mountp); 5742 mcp->mc_fstype = s_strdup(mnt.mnt_fstype); 5743 BAM_DPRINTF((D_CACHE_MNTS, fcn, ctds, 5744 mnt.mnt_mountp, mnt.mnt_fstype)); 5745 idx = mhash_fcn(ctds); 5746 mcp->mc_next = mhp->mh_hash[idx]; 5747 mhp->mh_hash[idx] = mcp; 5748 free(special_dup); 5749 } 5750 5751 (void) fclose(mfp); 5752 5753 return (mhp); 5754 } 5755 5756 static void 5757 free_mnttab(mhash_t *mhp) 5758 { 5759 mcache_t *mcp; 5760 int i; 5761 5762 for (i = 0; i < MH_HASH_SZ; i++) { 5763 /*LINTED*/ 5764 while (mcp = mhp->mh_hash[i]) { 5765 mhp->mh_hash[i] = mcp->mc_next; 5766 free(mcp->mc_special); 5767 free(mcp->mc_mntpt); 5768 free(mcp->mc_fstype); 5769 free(mcp); 5770 } 5771 } 5772 5773 for (i = 0; i < MH_HASH_SZ; i++) { 5774 assert(mhp->mh_hash[i] == NULL); 5775 } 5776 free(mhp); 5777 } 5778 5779 static mh_search_t 5780 search_hash(mhash_t *mhp, char *special, char **mntpt) 5781 { 5782 int idx; 5783 mcache_t *mcp; 5784 const char *fcn = "search_hash()"; 5785 5786 assert(mntpt); 5787 5788 *mntpt = NULL; 5789 5790 INJECT_ERROR1("SEARCH_HASH_FULL_PATH", special = "/foo"); 5791 if (strchr(special, '/')) { 5792 bam_error(INVALID_MHASH_KEY, special); 5793 return (MH_ERROR); 5794 } 5795 5796 idx = mhash_fcn(special); 5797 5798 for (mcp = mhp->mh_hash[idx]; mcp; mcp = mcp->mc_next) { 5799 if (strcmp(mcp->mc_special, special) == 0) 5800 break; 5801 } 5802 5803 if (mcp == NULL) { 5804 BAM_DPRINTF((D_MNTTAB_HASH_NOMATCH, fcn, special)); 5805 return (MH_NOMATCH); 5806 } 5807 5808 assert(strcmp(mcp->mc_fstype, "ufs") == 0); 5809 *mntpt = mcp->mc_mntpt; 5810 BAM_DPRINTF((D_MNTTAB_HASH_MATCH, fcn, special)); 5811 return (MH_MATCH); 5812 } 5813 5814 static int 5815 check_add_ufs_sign_to_list(FILE *tfp, char *mntpt) 5816 { 5817 char *sign; 5818 char *signline; 5819 char signbuf[MAXNAMELEN]; 5820 int len; 5821 int error; 5822 const char *fcn = "check_add_ufs_sign_to_list()"; 5823 5824 /* safe to specify NULL as "osdev" arg for UFS */ 5825 sign = find_existing_sign(mntpt, NULL, "ufs"); 5826 if (sign == NULL) { 5827 /* No existing signature, nothing to add to list */ 5828 BAM_DPRINTF((D_NO_SIGN_TO_LIST, fcn, mntpt)); 5829 return (0); 5830 } 5831 5832 (void) snprintf(signbuf, sizeof (signbuf), "%s\n", sign); 5833 signline = signbuf; 5834 5835 INJECT_ERROR1("UFS_MNTPT_SIGN_NOTUFS", signline = "pool_rpool10\n"); 5836 if (strncmp(signline, GRUBSIGN_UFS_PREFIX, 5837 strlen(GRUBSIGN_UFS_PREFIX))) { 5838 bam_error(INVALID_UFS_SIGNATURE, sign); 5839 free(sign); 5840 /* ignore invalid signatures */ 5841 return (0); 5842 } 5843 5844 len = fputs(signline, tfp); 5845 error = errno; 5846 INJECT_ERROR1("SIGN_LIST_PUTS_ERROR", len = 0); 5847 if (len != strlen(signline)) { 5848 bam_error(SIGN_LIST_FPUTS_ERR, sign, strerror(error)); 5849 free(sign); 5850 return (-1); 5851 } 5852 5853 free(sign); 5854 5855 BAM_DPRINTF((D_SIGN_LIST_PUTS_DONE, fcn, mntpt)); 5856 return (0); 5857 } 5858 5859 /* 5860 * slice is a basename not a full pathname 5861 */ 5862 static int 5863 process_slice_common(char *slice, FILE *tfp, mhash_t *mhp, char *tmpmnt) 5864 { 5865 int ret; 5866 char cmd[PATH_MAX]; 5867 char path[PATH_MAX]; 5868 struct stat sbuf; 5869 char *mntpt; 5870 filelist_t flist = {0}; 5871 char *fstype; 5872 char blkslice[PATH_MAX]; 5873 const char *fcn = "process_slice_common()"; 5874 5875 5876 ret = search_hash(mhp, slice, &mntpt); 5877 switch (ret) { 5878 case MH_MATCH: 5879 if (check_add_ufs_sign_to_list(tfp, mntpt) == -1) 5880 return (-1); 5881 else 5882 return (0); 5883 case MH_NOMATCH: 5884 break; 5885 case MH_ERROR: 5886 default: 5887 return (-1); 5888 } 5889 5890 (void) snprintf(path, sizeof (path), "/dev/rdsk/%s", slice); 5891 if (stat(path, &sbuf) == -1) { 5892 BAM_DPRINTF((D_SLICE_ENOENT, fcn, path)); 5893 return (0); 5894 } 5895 5896 /* Check if ufs */ 5897 (void) snprintf(cmd, sizeof (cmd), 5898 "/usr/sbin/fstyp /dev/rdsk/%s 2>/dev/null", 5899 slice); 5900 5901 if (exec_cmd(cmd, &flist) != 0) { 5902 if (bam_verbose) 5903 bam_print(FSTYP_FAILED, slice); 5904 return (0); 5905 } 5906 5907 if ((flist.head == NULL) || (flist.head != flist.tail)) { 5908 if (bam_verbose) 5909 bam_print(FSTYP_BAD, slice); 5910 filelist_free(&flist); 5911 return (0); 5912 } 5913 5914 fstype = strtok(flist.head->line, " \t\n"); 5915 if (fstype == NULL || strcmp(fstype, "ufs") != 0) { 5916 if (bam_verbose) 5917 bam_print(NOT_UFS_SLICE, slice, fstype); 5918 filelist_free(&flist); 5919 return (0); 5920 } 5921 5922 filelist_free(&flist); 5923 5924 /* 5925 * Since we are mounting the filesystem read-only, the 5926 * the last mount field of the superblock is unchanged 5927 * and does not need to be fixed up post-mount; 5928 */ 5929 5930 (void) snprintf(blkslice, sizeof (blkslice), "/dev/dsk/%s", 5931 slice); 5932 5933 (void) snprintf(cmd, sizeof (cmd), 5934 "/usr/sbin/mount -F ufs -o ro %s %s " 5935 "> /dev/null 2>&1", blkslice, tmpmnt); 5936 5937 if (exec_cmd(cmd, NULL) != 0) { 5938 if (bam_verbose) 5939 bam_print(MOUNT_FAILED, blkslice, "ufs"); 5940 return (0); 5941 } 5942 5943 ret = check_add_ufs_sign_to_list(tfp, tmpmnt); 5944 5945 (void) snprintf(cmd, sizeof (cmd), 5946 "/usr/sbin/umount -f %s > /dev/null 2>&1", 5947 tmpmnt); 5948 5949 if (exec_cmd(cmd, NULL) != 0) { 5950 bam_print(UMOUNT_FAILED, slice); 5951 return (0); 5952 } 5953 5954 return (ret); 5955 } 5956 5957 static int 5958 process_vtoc_slices( 5959 char *s0, 5960 struct vtoc *vtoc, 5961 FILE *tfp, 5962 mhash_t *mhp, 5963 char *tmpmnt) 5964 { 5965 int idx; 5966 char slice[PATH_MAX]; 5967 size_t len; 5968 char *cp; 5969 const char *fcn = "process_vtoc_slices()"; 5970 5971 len = strlen(s0); 5972 5973 assert(s0[len - 2] == 's' && s0[len - 1] == '0'); 5974 5975 s0[len - 1] = '\0'; 5976 5977 (void) strlcpy(slice, s0, sizeof (slice)); 5978 5979 s0[len - 1] = '0'; 5980 5981 cp = slice + len - 1; 5982 5983 for (idx = 0; idx < vtoc->v_nparts; idx++) { 5984 5985 (void) snprintf(cp, sizeof (slice) - (len - 1), "%u", idx); 5986 5987 if (vtoc->v_part[idx].p_size == 0) { 5988 BAM_DPRINTF((D_VTOC_SIZE_ZERO, fcn, slice)); 5989 continue; 5990 } 5991 5992 /* Skip "SWAP", "USR", "BACKUP", "VAR", "HOME", "ALTSCTR" */ 5993 switch (vtoc->v_part[idx].p_tag) { 5994 case V_SWAP: 5995 case V_USR: 5996 case V_BACKUP: 5997 case V_VAR: 5998 case V_HOME: 5999 case V_ALTSCTR: 6000 BAM_DPRINTF((D_VTOC_NOT_ROOT_TAG, fcn, slice)); 6001 continue; 6002 default: 6003 BAM_DPRINTF((D_VTOC_ROOT_TAG, fcn, slice)); 6004 break; 6005 } 6006 6007 /* skip unmountable and readonly slices */ 6008 switch (vtoc->v_part[idx].p_flag) { 6009 case V_UNMNT: 6010 case V_RONLY: 6011 BAM_DPRINTF((D_VTOC_NOT_RDWR_FLAG, fcn, slice)); 6012 continue; 6013 default: 6014 BAM_DPRINTF((D_VTOC_RDWR_FLAG, fcn, slice)); 6015 break; 6016 } 6017 6018 if (process_slice_common(slice, tfp, mhp, tmpmnt) == -1) { 6019 return (-1); 6020 } 6021 } 6022 6023 return (0); 6024 } 6025 6026 static int 6027 process_efi_slices( 6028 char *s0, 6029 struct dk_gpt *efi, 6030 FILE *tfp, 6031 mhash_t *mhp, 6032 char *tmpmnt) 6033 { 6034 int idx; 6035 char slice[PATH_MAX]; 6036 size_t len; 6037 char *cp; 6038 const char *fcn = "process_efi_slices()"; 6039 6040 len = strlen(s0); 6041 6042 assert(s0[len - 2] == 's' && s0[len - 1] == '0'); 6043 6044 s0[len - 1] = '\0'; 6045 6046 (void) strlcpy(slice, s0, sizeof (slice)); 6047 6048 s0[len - 1] = '0'; 6049 6050 cp = slice + len - 1; 6051 6052 for (idx = 0; idx < efi->efi_nparts; idx++) { 6053 6054 (void) snprintf(cp, sizeof (slice) - (len - 1), "%u", idx); 6055 6056 if (efi->efi_parts[idx].p_size == 0) { 6057 BAM_DPRINTF((D_EFI_SIZE_ZERO, fcn, slice)); 6058 continue; 6059 } 6060 6061 /* Skip "SWAP", "USR", "BACKUP", "VAR", "HOME", "ALTSCTR" */ 6062 switch (efi->efi_parts[idx].p_tag) { 6063 case V_SWAP: 6064 case V_USR: 6065 case V_BACKUP: 6066 case V_VAR: 6067 case V_HOME: 6068 case V_ALTSCTR: 6069 BAM_DPRINTF((D_EFI_NOT_ROOT_TAG, fcn, slice)); 6070 continue; 6071 default: 6072 BAM_DPRINTF((D_EFI_ROOT_TAG, fcn, slice)); 6073 break; 6074 } 6075 6076 /* skip unmountable and readonly slices */ 6077 switch (efi->efi_parts[idx].p_flag) { 6078 case V_UNMNT: 6079 case V_RONLY: 6080 BAM_DPRINTF((D_EFI_NOT_RDWR_FLAG, fcn, slice)); 6081 continue; 6082 default: 6083 BAM_DPRINTF((D_EFI_RDWR_FLAG, fcn, slice)); 6084 break; 6085 } 6086 6087 if (process_slice_common(slice, tfp, mhp, tmpmnt) == -1) { 6088 return (-1); 6089 } 6090 } 6091 6092 return (0); 6093 } 6094 6095 /* 6096 * s0 is a basename not a full path 6097 */ 6098 static int 6099 process_slice0(char *s0, FILE *tfp, mhash_t *mhp, char *tmpmnt) 6100 { 6101 struct vtoc vtoc; 6102 struct dk_gpt *efi; 6103 char s0path[PATH_MAX]; 6104 struct stat sbuf; 6105 int e_flag; 6106 int v_flag; 6107 int retval; 6108 int err; 6109 int fd; 6110 const char *fcn = "process_slice0()"; 6111 6112 (void) snprintf(s0path, sizeof (s0path), "/dev/rdsk/%s", s0); 6113 6114 if (stat(s0path, &sbuf) == -1) { 6115 BAM_DPRINTF((D_SLICE0_ENOENT, fcn, s0path)); 6116 return (0); 6117 } 6118 6119 fd = open(s0path, O_NONBLOCK|O_RDONLY); 6120 if (fd == -1) { 6121 bam_error(OPEN_FAIL, s0path, strerror(errno)); 6122 return (0); 6123 } 6124 6125 e_flag = v_flag = 0; 6126 retval = ((err = read_vtoc(fd, &vtoc)) >= 0) ? 0 : err; 6127 switch (retval) { 6128 case VT_EIO: 6129 BAM_DPRINTF((D_VTOC_READ_FAIL, fcn, s0path)); 6130 break; 6131 case VT_EINVAL: 6132 BAM_DPRINTF((D_VTOC_INVALID, fcn, s0path)); 6133 break; 6134 case VT_ERROR: 6135 BAM_DPRINTF((D_VTOC_UNKNOWN_ERR, fcn, s0path)); 6136 break; 6137 case VT_ENOTSUP: 6138 e_flag = 1; 6139 BAM_DPRINTF((D_VTOC_NOTSUP, fcn, s0path)); 6140 break; 6141 case 0: 6142 v_flag = 1; 6143 BAM_DPRINTF((D_VTOC_READ_SUCCESS, fcn, s0path)); 6144 break; 6145 default: 6146 BAM_DPRINTF((D_VTOC_UNKNOWN_RETCODE, fcn, s0path)); 6147 break; 6148 } 6149 6150 6151 if (e_flag) { 6152 e_flag = 0; 6153 retval = ((err = efi_alloc_and_read(fd, &efi)) >= 0) ? 0 : err; 6154 switch (retval) { 6155 case VT_EIO: 6156 BAM_DPRINTF((D_EFI_READ_FAIL, fcn, s0path)); 6157 break; 6158 case VT_EINVAL: 6159 BAM_DPRINTF((D_EFI_INVALID, fcn, s0path)); 6160 break; 6161 case VT_ERROR: 6162 BAM_DPRINTF((D_EFI_UNKNOWN_ERR, fcn, s0path)); 6163 break; 6164 case VT_ENOTSUP: 6165 BAM_DPRINTF((D_EFI_NOTSUP, fcn, s0path)); 6166 break; 6167 case 0: 6168 e_flag = 1; 6169 BAM_DPRINTF((D_EFI_READ_SUCCESS, fcn, s0path)); 6170 break; 6171 default: 6172 BAM_DPRINTF((D_EFI_UNKNOWN_RETCODE, fcn, s0path)); 6173 break; 6174 } 6175 } 6176 6177 (void) close(fd); 6178 6179 if (v_flag) { 6180 retval = process_vtoc_slices(s0, 6181 &vtoc, tfp, mhp, tmpmnt); 6182 } else if (e_flag) { 6183 retval = process_efi_slices(s0, 6184 efi, tfp, mhp, tmpmnt); 6185 } else { 6186 BAM_DPRINTF((D_NOT_VTOC_OR_EFI, fcn, s0path)); 6187 return (0); 6188 } 6189 6190 return (retval); 6191 } 6192 6193 /* 6194 * Find and create a list of all existing UFS boot signatures 6195 */ 6196 static int 6197 FindAllUfsSignatures(void) 6198 { 6199 mhash_t *mnttab_hash; 6200 DIR *dirp = NULL; 6201 struct dirent *dp; 6202 char tmpmnt[PATH_MAX]; 6203 char cmd[PATH_MAX]; 6204 struct stat sb; 6205 int fd; 6206 FILE *tfp; 6207 size_t len; 6208 int ret; 6209 int error; 6210 const char *fcn = "FindAllUfsSignatures()"; 6211 6212 if (stat(UFS_SIGNATURE_LIST, &sb) != -1) { 6213 bam_print(SIGNATURE_LIST_EXISTS, UFS_SIGNATURE_LIST); 6214 return (0); 6215 } 6216 6217 fd = open(UFS_SIGNATURE_LIST".tmp", 6218 O_RDWR|O_CREAT|O_TRUNC, 0644); 6219 error = errno; 6220 INJECT_ERROR1("SIGN_LIST_TMP_TRUNC", fd = -1); 6221 if (fd == -1) { 6222 bam_error(OPEN_FAIL, UFS_SIGNATURE_LIST".tmp", strerror(error)); 6223 return (-1); 6224 } 6225 6226 ret = close(fd); 6227 error = errno; 6228 INJECT_ERROR1("SIGN_LIST_TMP_CLOSE", ret = -1); 6229 if (ret == -1) { 6230 bam_error(CLOSE_FAIL, UFS_SIGNATURE_LIST".tmp", 6231 strerror(error)); 6232 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6233 return (-1); 6234 } 6235 6236 tfp = fopen(UFS_SIGNATURE_LIST".tmp", "a"); 6237 error = errno; 6238 INJECT_ERROR1("SIGN_LIST_APPEND_FOPEN", tfp = NULL); 6239 if (tfp == NULL) { 6240 bam_error(OPEN_FAIL, UFS_SIGNATURE_LIST".tmp", strerror(error)); 6241 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6242 return (-1); 6243 } 6244 6245 mnttab_hash = cache_mnttab(); 6246 INJECT_ERROR1("CACHE_MNTTAB_ERROR", mnttab_hash = NULL); 6247 if (mnttab_hash == NULL) { 6248 (void) fclose(tfp); 6249 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6250 bam_error(CACHE_MNTTAB_FAIL, fcn); 6251 return (-1); 6252 } 6253 6254 (void) snprintf(tmpmnt, sizeof (tmpmnt), 6255 "/tmp/bootadm_ufs_sign_mnt.%d", getpid()); 6256 (void) unlink(tmpmnt); 6257 6258 ret = mkdirp(tmpmnt, DIR_PERMS); 6259 error = errno; 6260 INJECT_ERROR1("MKDIRP_SIGN_MNT", ret = -1); 6261 if (ret == -1) { 6262 bam_error(MKDIR_FAILED, tmpmnt, strerror(error)); 6263 free_mnttab(mnttab_hash); 6264 (void) fclose(tfp); 6265 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6266 return (-1); 6267 } 6268 6269 dirp = opendir("/dev/rdsk"); 6270 error = errno; 6271 INJECT_ERROR1("OPENDIR_DEV_RDSK", dirp = NULL); 6272 if (dirp == NULL) { 6273 bam_error(OPENDIR_FAILED, "/dev/rdsk", strerror(error)); 6274 goto fail; 6275 } 6276 6277 while (dp = readdir(dirp)) { 6278 if (strcmp(dp->d_name, ".") == 0 || 6279 strcmp(dp->d_name, "..") == 0) 6280 continue; 6281 6282 /* 6283 * we only look for the s0 slice. This is guranteed to 6284 * have 's' at len - 2. 6285 */ 6286 len = strlen(dp->d_name); 6287 if (dp->d_name[len - 2 ] != 's' || dp->d_name[len - 1] != '0') { 6288 BAM_DPRINTF((D_SKIP_SLICE_NOTZERO, fcn, dp->d_name)); 6289 continue; 6290 } 6291 6292 ret = process_slice0(dp->d_name, tfp, mnttab_hash, tmpmnt); 6293 INJECT_ERROR1("PROCESS_S0_FAIL", ret = -1); 6294 if (ret == -1) 6295 goto fail; 6296 } 6297 6298 (void) closedir(dirp); 6299 free_mnttab(mnttab_hash); 6300 (void) rmdir(tmpmnt); 6301 6302 ret = fclose(tfp); 6303 error = errno; 6304 INJECT_ERROR1("FCLOSE_SIGNLIST_TMP", ret = EOF); 6305 if (ret == EOF) { 6306 bam_error(CLOSE_FAIL, UFS_SIGNATURE_LIST".tmp", 6307 strerror(error)); 6308 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6309 return (-1); 6310 } 6311 6312 /* We have a list of existing GRUB signatures. Sort it first */ 6313 (void) snprintf(cmd, sizeof (cmd), 6314 "/usr/bin/sort -u %s.tmp > %s.sorted", 6315 UFS_SIGNATURE_LIST, UFS_SIGNATURE_LIST); 6316 6317 ret = exec_cmd(cmd, NULL); 6318 INJECT_ERROR1("SORT_SIGN_LIST", ret = 1); 6319 if (ret != 0) { 6320 bam_error(GRUBSIGN_SORT_FAILED); 6321 (void) unlink(UFS_SIGNATURE_LIST".sorted"); 6322 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6323 return (-1); 6324 } 6325 6326 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6327 6328 ret = rename(UFS_SIGNATURE_LIST".sorted", UFS_SIGNATURE_LIST); 6329 error = errno; 6330 INJECT_ERROR1("RENAME_TMP_SIGNLIST", ret = -1); 6331 if (ret == -1) { 6332 bam_error(RENAME_FAIL, UFS_SIGNATURE_LIST, strerror(error)); 6333 (void) unlink(UFS_SIGNATURE_LIST".sorted"); 6334 return (-1); 6335 } 6336 6337 if (stat(UFS_SIGNATURE_LIST, &sb) == 0 && sb.st_size == 0) { 6338 BAM_DPRINTF((D_ZERO_LEN_SIGNLIST, fcn, UFS_SIGNATURE_LIST)); 6339 } 6340 6341 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6342 return (0); 6343 6344 fail: 6345 if (dirp) 6346 (void) closedir(dirp); 6347 free_mnttab(mnttab_hash); 6348 (void) rmdir(tmpmnt); 6349 (void) fclose(tfp); 6350 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6351 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 6352 return (-1); 6353 } 6354 6355 static char * 6356 create_ufs_sign(void) 6357 { 6358 struct stat sb; 6359 int signnum = -1; 6360 char tmpsign[MAXNAMELEN + 1]; 6361 char *numstr; 6362 int i; 6363 FILE *tfp; 6364 int ret; 6365 int error; 6366 const char *fcn = "create_ufs_sign()"; 6367 6368 bam_print(SEARCHING_UFS_SIGN); 6369 6370 ret = FindAllUfsSignatures(); 6371 INJECT_ERROR1("FIND_ALL_UFS", ret = -1); 6372 if (ret == -1) { 6373 bam_error(ERR_FIND_UFS_SIGN); 6374 return (NULL); 6375 } 6376 6377 /* Make sure the list exists and is owned by root */ 6378 INJECT_ERROR1("SIGNLIST_NOT_CREATED", 6379 (void) unlink(UFS_SIGNATURE_LIST)); 6380 if (stat(UFS_SIGNATURE_LIST, &sb) == -1 || sb.st_uid != 0) { 6381 (void) unlink(UFS_SIGNATURE_LIST); 6382 bam_error(UFS_SIGNATURE_LIST_MISS, UFS_SIGNATURE_LIST); 6383 return (NULL); 6384 } 6385 6386 if (sb.st_size == 0) { 6387 bam_print(GRUBSIGN_UFS_NONE); 6388 i = 0; 6389 goto found; 6390 } 6391 6392 /* The signature list was sorted when it was created */ 6393 tfp = fopen(UFS_SIGNATURE_LIST, "r"); 6394 error = errno; 6395 INJECT_ERROR1("FOPEN_SIGN_LIST", tfp = NULL); 6396 if (tfp == NULL) { 6397 bam_error(UFS_SIGNATURE_LIST_OPENERR, 6398 UFS_SIGNATURE_LIST, strerror(error)); 6399 (void) unlink(UFS_SIGNATURE_LIST); 6400 return (NULL); 6401 } 6402 6403 for (i = 0; s_fgets(tmpsign, sizeof (tmpsign), tfp); i++) { 6404 6405 if (strncmp(tmpsign, GRUBSIGN_UFS_PREFIX, 6406 strlen(GRUBSIGN_UFS_PREFIX)) != 0) { 6407 (void) fclose(tfp); 6408 (void) unlink(UFS_SIGNATURE_LIST); 6409 bam_error(UFS_BADSIGN, tmpsign); 6410 return (NULL); 6411 } 6412 numstr = tmpsign + strlen(GRUBSIGN_UFS_PREFIX); 6413 6414 if (numstr[0] == '\0' || !isdigit(numstr[0])) { 6415 (void) fclose(tfp); 6416 (void) unlink(UFS_SIGNATURE_LIST); 6417 bam_error(UFS_BADSIGN, tmpsign); 6418 return (NULL); 6419 } 6420 6421 signnum = atoi(numstr); 6422 INJECT_ERROR1("NEGATIVE_SIGN", signnum = -1); 6423 if (signnum < 0) { 6424 (void) fclose(tfp); 6425 (void) unlink(UFS_SIGNATURE_LIST); 6426 bam_error(UFS_BADSIGN, tmpsign); 6427 return (NULL); 6428 } 6429 6430 if (i != signnum) { 6431 BAM_DPRINTF((D_FOUND_HOLE_SIGNLIST, fcn, i)); 6432 break; 6433 } 6434 } 6435 6436 (void) fclose(tfp); 6437 6438 found: 6439 (void) snprintf(tmpsign, sizeof (tmpsign), "rootfs%d", i); 6440 6441 /* add the ufs signature to the /var/run list of signatures */ 6442 ret = ufs_add_to_sign_list(tmpsign); 6443 INJECT_ERROR1("UFS_ADD_TO_SIGN_LIST", ret = -1); 6444 if (ret == -1) { 6445 (void) unlink(UFS_SIGNATURE_LIST); 6446 bam_error(FAILED_ADD_SIGNLIST, tmpsign); 6447 return (NULL); 6448 } 6449 6450 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6451 6452 return (s_strdup(tmpsign)); 6453 } 6454 6455 static char * 6456 get_fstype(char *osroot) 6457 { 6458 FILE *mntfp; 6459 struct mnttab mp = {0}; 6460 struct mnttab mpref = {0}; 6461 int error; 6462 int ret; 6463 const char *fcn = "get_fstype()"; 6464 6465 INJECT_ERROR1("GET_FSTYPE_OSROOT", osroot = NULL); 6466 if (osroot == NULL) { 6467 bam_error(GET_FSTYPE_ARGS); 6468 return (NULL); 6469 } 6470 6471 mntfp = fopen(MNTTAB, "r"); 6472 error = errno; 6473 INJECT_ERROR1("GET_FSTYPE_FOPEN", mntfp = NULL); 6474 if (mntfp == NULL) { 6475 bam_error(OPEN_FAIL, MNTTAB, strerror(error)); 6476 return (NULL); 6477 } 6478 6479 if (*osroot == '\0') 6480 mpref.mnt_mountp = "/"; 6481 else 6482 mpref.mnt_mountp = osroot; 6483 6484 ret = getmntany(mntfp, &mp, &mpref); 6485 INJECT_ERROR1("GET_FSTYPE_GETMNTANY", ret = 1); 6486 if (ret != 0) { 6487 bam_error(MNTTAB_MNTPT_NOT_FOUND, osroot, MNTTAB); 6488 (void) fclose(mntfp); 6489 return (NULL); 6490 } 6491 (void) fclose(mntfp); 6492 6493 INJECT_ERROR1("GET_FSTYPE_NULL", mp.mnt_fstype = NULL); 6494 if (mp.mnt_fstype == NULL) { 6495 bam_error(MNTTAB_FSTYPE_NULL, osroot); 6496 return (NULL); 6497 } 6498 6499 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6500 6501 return (s_strdup(mp.mnt_fstype)); 6502 } 6503 6504 static char * 6505 create_zfs_sign(char *osdev) 6506 { 6507 char tmpsign[PATH_MAX]; 6508 char *pool; 6509 const char *fcn = "create_zfs_sign()"; 6510 6511 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, osdev)); 6512 6513 /* 6514 * First find the pool name 6515 */ 6516 pool = get_pool(osdev); 6517 INJECT_ERROR1("CREATE_ZFS_SIGN_GET_POOL", pool = NULL); 6518 if (pool == NULL) { 6519 bam_error(GET_POOL_FAILED, osdev); 6520 return (NULL); 6521 } 6522 6523 (void) snprintf(tmpsign, sizeof (tmpsign), "pool_%s", pool); 6524 6525 BAM_DPRINTF((D_CREATED_ZFS_SIGN, fcn, tmpsign)); 6526 6527 free(pool); 6528 6529 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6530 6531 return (s_strdup(tmpsign)); 6532 } 6533 6534 static char * 6535 create_new_sign(char *osdev, char *fstype) 6536 { 6537 char *sign; 6538 const char *fcn = "create_new_sign()"; 6539 6540 INJECT_ERROR1("NEW_SIGN_FSTYPE", fstype = "foofs"); 6541 6542 if (strcmp(fstype, "zfs") == 0) { 6543 BAM_DPRINTF((D_CREATE_NEW_ZFS, fcn)); 6544 sign = create_zfs_sign(osdev); 6545 } else if (strcmp(fstype, "ufs") == 0) { 6546 BAM_DPRINTF((D_CREATE_NEW_UFS, fcn)); 6547 sign = create_ufs_sign(); 6548 } else { 6549 bam_error(GRUBSIGN_NOTSUP, fstype); 6550 sign = NULL; 6551 } 6552 6553 BAM_DPRINTF((D_CREATED_NEW_SIGN, fcn, sign ? sign : "<NULL>")); 6554 return (sign); 6555 } 6556 6557 static int 6558 set_backup_common(char *mntpt, char *sign) 6559 { 6560 FILE *bfp; 6561 char backup[PATH_MAX]; 6562 char tmpsign[PATH_MAX]; 6563 int error; 6564 char *bdir; 6565 char *backup_dup; 6566 struct stat sb; 6567 int ret; 6568 const char *fcn = "set_backup_common()"; 6569 6570 (void) snprintf(backup, sizeof (backup), "%s%s", 6571 mntpt, GRUBSIGN_BACKUP); 6572 6573 /* First read the backup */ 6574 bfp = fopen(backup, "r"); 6575 if (bfp != NULL) { 6576 while (s_fgets(tmpsign, sizeof (tmpsign), bfp)) { 6577 if (strcmp(tmpsign, sign) == 0) { 6578 BAM_DPRINTF((D_FOUND_IN_BACKUP, fcn, sign)); 6579 (void) fclose(bfp); 6580 return (0); 6581 } 6582 } 6583 (void) fclose(bfp); 6584 BAM_DPRINTF((D_NOT_FOUND_IN_EXIST_BACKUP, fcn, sign)); 6585 } else { 6586 BAM_DPRINTF((D_BACKUP_NOT_EXIST, fcn, backup)); 6587 } 6588 6589 /* 6590 * Didn't find the correct signature. First create 6591 * the directory if necessary. 6592 */ 6593 6594 /* dirname() modifies its argument so dup it */ 6595 backup_dup = s_strdup(backup); 6596 bdir = dirname(backup_dup); 6597 assert(bdir); 6598 6599 ret = stat(bdir, &sb); 6600 INJECT_ERROR1("SET_BACKUP_STAT", ret = -1); 6601 if (ret == -1) { 6602 BAM_DPRINTF((D_BACKUP_DIR_NOEXIST, fcn, bdir)); 6603 ret = mkdirp(bdir, DIR_PERMS); 6604 error = errno; 6605 INJECT_ERROR1("SET_BACKUP_MKDIRP", ret = -1); 6606 if (ret == -1) { 6607 bam_error(GRUBSIGN_BACKUP_MKDIRERR, 6608 GRUBSIGN_BACKUP, strerror(error)); 6609 free(backup_dup); 6610 return (-1); 6611 } 6612 } 6613 free(backup_dup); 6614 6615 /* 6616 * Open the backup in append mode to add the correct 6617 * signature; 6618 */ 6619 bfp = fopen(backup, "a"); 6620 error = errno; 6621 INJECT_ERROR1("SET_BACKUP_FOPEN_A", bfp = NULL); 6622 if (bfp == NULL) { 6623 bam_error(GRUBSIGN_BACKUP_OPENERR, 6624 GRUBSIGN_BACKUP, strerror(error)); 6625 return (-1); 6626 } 6627 6628 (void) snprintf(tmpsign, sizeof (tmpsign), "%s\n", sign); 6629 6630 ret = fputs(tmpsign, bfp); 6631 error = errno; 6632 INJECT_ERROR1("SET_BACKUP_FPUTS", ret = 0); 6633 if (ret != strlen(tmpsign)) { 6634 bam_error(GRUBSIGN_BACKUP_WRITEERR, 6635 GRUBSIGN_BACKUP, strerror(error)); 6636 (void) fclose(bfp); 6637 return (-1); 6638 } 6639 6640 (void) fclose(bfp); 6641 6642 if (bam_verbose) 6643 bam_print(GRUBSIGN_BACKUP_UPDATED, GRUBSIGN_BACKUP); 6644 6645 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6646 6647 return (0); 6648 } 6649 6650 static int 6651 set_backup_ufs(char *osroot, char *sign) 6652 { 6653 const char *fcn = "set_backup_ufs()"; 6654 6655 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, osroot, sign)); 6656 return (set_backup_common(osroot, sign)); 6657 } 6658 6659 static int 6660 set_backup_zfs(char *osdev, char *sign) 6661 { 6662 char *pool; 6663 char *mntpt; 6664 zfs_mnted_t mnted; 6665 int ret; 6666 const char *fcn = "set_backup_zfs()"; 6667 6668 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, osdev, sign)); 6669 6670 pool = get_pool(osdev); 6671 INJECT_ERROR1("SET_BACKUP_GET_POOL", pool = NULL); 6672 if (pool == NULL) { 6673 bam_error(GET_POOL_FAILED, osdev); 6674 return (-1); 6675 } 6676 6677 mntpt = mount_top_dataset(pool, &mnted); 6678 INJECT_ERROR1("SET_BACKUP_MOUNT_DATASET", mntpt = NULL); 6679 if (mntpt == NULL) { 6680 bam_error(FAIL_MNT_TOP_DATASET, pool); 6681 free(pool); 6682 return (-1); 6683 } 6684 6685 ret = set_backup_common(mntpt, sign); 6686 6687 (void) umount_top_dataset(pool, mnted, mntpt); 6688 6689 free(pool); 6690 6691 INJECT_ERROR1("SET_BACKUP_ZFS_FAIL", ret = 1); 6692 if (ret == 0) { 6693 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6694 } else { 6695 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 6696 } 6697 6698 return (ret); 6699 } 6700 6701 static int 6702 set_backup(char *osroot, char *osdev, char *sign, char *fstype) 6703 { 6704 const char *fcn = "set_backup()"; 6705 int ret; 6706 6707 INJECT_ERROR1("SET_BACKUP_FSTYPE", fstype = "foofs"); 6708 6709 if (strcmp(fstype, "ufs") == 0) { 6710 BAM_DPRINTF((D_SET_BACKUP_UFS, fcn)); 6711 ret = set_backup_ufs(osroot, sign); 6712 } else if (strcmp(fstype, "zfs") == 0) { 6713 BAM_DPRINTF((D_SET_BACKUP_ZFS, fcn)); 6714 ret = set_backup_zfs(osdev, sign); 6715 } else { 6716 bam_error(GRUBSIGN_NOTSUP, fstype); 6717 ret = -1; 6718 } 6719 6720 if (ret == 0) { 6721 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6722 } else { 6723 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 6724 } 6725 6726 return (ret); 6727 } 6728 6729 static int 6730 set_primary_common(char *mntpt, char *sign) 6731 { 6732 char signfile[PATH_MAX]; 6733 char signdir[PATH_MAX]; 6734 struct stat sb; 6735 int fd; 6736 int error; 6737 int ret; 6738 const char *fcn = "set_primary_common()"; 6739 6740 (void) snprintf(signfile, sizeof (signfile), "%s/%s/%s", 6741 mntpt, GRUBSIGN_DIR, sign); 6742 6743 if (stat(signfile, &sb) != -1) { 6744 if (bam_verbose) 6745 bam_print(PRIMARY_SIGN_EXISTS, sign); 6746 return (0); 6747 } else { 6748 BAM_DPRINTF((D_PRIMARY_NOT_EXIST, fcn, signfile)); 6749 } 6750 6751 (void) snprintf(signdir, sizeof (signdir), "%s/%s", 6752 mntpt, GRUBSIGN_DIR); 6753 6754 if (stat(signdir, &sb) == -1) { 6755 BAM_DPRINTF((D_PRIMARY_DIR_NOEXIST, fcn, signdir)); 6756 ret = mkdirp(signdir, DIR_PERMS); 6757 error = errno; 6758 INJECT_ERROR1("SET_PRIMARY_MKDIRP", ret = -1); 6759 if (ret == -1) { 6760 bam_error(GRUBSIGN_MKDIR_ERR, signdir, strerror(errno)); 6761 return (-1); 6762 } 6763 } 6764 6765 fd = open(signfile, O_RDWR|O_CREAT|O_TRUNC, 0444); 6766 error = errno; 6767 INJECT_ERROR1("PRIMARY_SIGN_CREAT", fd = -1); 6768 if (fd == -1) { 6769 bam_error(GRUBSIGN_PRIMARY_CREATERR, signfile, strerror(error)); 6770 return (-1); 6771 } 6772 6773 ret = fsync(fd); 6774 error = errno; 6775 INJECT_ERROR1("PRIMARY_FSYNC", ret = -1); 6776 if (ret != 0) { 6777 bam_error(GRUBSIGN_PRIMARY_SYNCERR, signfile, strerror(error)); 6778 } 6779 6780 (void) close(fd); 6781 6782 if (bam_verbose) 6783 bam_print(GRUBSIGN_CREATED_PRIMARY, signfile); 6784 6785 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6786 6787 return (0); 6788 } 6789 6790 static int 6791 set_primary_ufs(char *osroot, char *sign) 6792 { 6793 const char *fcn = "set_primary_ufs()"; 6794 6795 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, osroot, sign)); 6796 return (set_primary_common(osroot, sign)); 6797 } 6798 6799 static int 6800 set_primary_zfs(char *osdev, char *sign) 6801 { 6802 char *pool; 6803 char *mntpt; 6804 zfs_mnted_t mnted; 6805 int ret; 6806 const char *fcn = "set_primary_zfs()"; 6807 6808 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, osdev, sign)); 6809 6810 pool = get_pool(osdev); 6811 INJECT_ERROR1("SET_PRIMARY_ZFS_GET_POOL", pool = NULL); 6812 if (pool == NULL) { 6813 bam_error(GET_POOL_FAILED, osdev); 6814 return (-1); 6815 } 6816 6817 /* Pool name must exist in the sign */ 6818 ret = (strstr(sign, pool) != NULL); 6819 INJECT_ERROR1("SET_PRIMARY_ZFS_POOL_SIGN_INCOMPAT", ret = 0); 6820 if (ret == 0) { 6821 bam_error(POOL_SIGN_INCOMPAT, pool, sign); 6822 free(pool); 6823 return (-1); 6824 } 6825 6826 mntpt = mount_top_dataset(pool, &mnted); 6827 INJECT_ERROR1("SET_PRIMARY_ZFS_MOUNT_DATASET", mntpt = NULL); 6828 if (mntpt == NULL) { 6829 bam_error(FAIL_MNT_TOP_DATASET, pool); 6830 free(pool); 6831 return (-1); 6832 } 6833 6834 ret = set_primary_common(mntpt, sign); 6835 6836 (void) umount_top_dataset(pool, mnted, mntpt); 6837 6838 free(pool); 6839 6840 INJECT_ERROR1("SET_PRIMARY_ZFS_FAIL", ret = 1); 6841 if (ret == 0) { 6842 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6843 } else { 6844 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 6845 } 6846 6847 return (ret); 6848 } 6849 6850 static int 6851 set_primary(char *osroot, char *osdev, char *sign, char *fstype) 6852 { 6853 const char *fcn = "set_primary()"; 6854 int ret; 6855 6856 INJECT_ERROR1("SET_PRIMARY_FSTYPE", fstype = "foofs"); 6857 if (strcmp(fstype, "ufs") == 0) { 6858 BAM_DPRINTF((D_SET_PRIMARY_UFS, fcn)); 6859 ret = set_primary_ufs(osroot, sign); 6860 } else if (strcmp(fstype, "zfs") == 0) { 6861 BAM_DPRINTF((D_SET_PRIMARY_ZFS, fcn)); 6862 ret = set_primary_zfs(osdev, sign); 6863 } else { 6864 bam_error(GRUBSIGN_NOTSUP, fstype); 6865 ret = -1; 6866 } 6867 6868 if (ret == 0) { 6869 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6870 } else { 6871 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 6872 } 6873 6874 return (ret); 6875 } 6876 6877 static int 6878 ufs_add_to_sign_list(char *sign) 6879 { 6880 FILE *tfp; 6881 char signline[MAXNAMELEN]; 6882 char cmd[PATH_MAX]; 6883 int ret; 6884 int error; 6885 const char *fcn = "ufs_add_to_sign_list()"; 6886 6887 INJECT_ERROR1("ADD_TO_SIGN_LIST_NOT_UFS", sign = "pool_rpool5"); 6888 if (strncmp(sign, GRUBSIGN_UFS_PREFIX, 6889 strlen(GRUBSIGN_UFS_PREFIX)) != 0) { 6890 bam_error(INVALID_UFS_SIGN, sign); 6891 (void) unlink(UFS_SIGNATURE_LIST); 6892 return (-1); 6893 } 6894 6895 /* 6896 * most failures in this routine are not a fatal error 6897 * We simply unlink the /var/run file and continue 6898 */ 6899 6900 ret = rename(UFS_SIGNATURE_LIST, UFS_SIGNATURE_LIST".tmp"); 6901 error = errno; 6902 INJECT_ERROR1("ADD_TO_SIGN_LIST_RENAME", ret = -1); 6903 if (ret == -1) { 6904 bam_error(RENAME_FAIL, UFS_SIGNATURE_LIST".tmp", 6905 strerror(error)); 6906 (void) unlink(UFS_SIGNATURE_LIST); 6907 return (0); 6908 } 6909 6910 tfp = fopen(UFS_SIGNATURE_LIST".tmp", "a"); 6911 error = errno; 6912 INJECT_ERROR1("ADD_TO_SIGN_LIST_FOPEN", tfp = NULL); 6913 if (tfp == NULL) { 6914 bam_error(OPEN_FAIL, UFS_SIGNATURE_LIST".tmp", strerror(error)); 6915 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6916 return (0); 6917 } 6918 6919 (void) snprintf(signline, sizeof (signline), "%s\n", sign); 6920 6921 ret = fputs(signline, tfp); 6922 error = errno; 6923 INJECT_ERROR1("ADD_TO_SIGN_LIST_FPUTS", ret = 0); 6924 if (ret != strlen(signline)) { 6925 bam_error(SIGN_LIST_FPUTS_ERR, sign, strerror(error)); 6926 (void) fclose(tfp); 6927 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6928 return (0); 6929 } 6930 6931 ret = fclose(tfp); 6932 error = errno; 6933 INJECT_ERROR1("ADD_TO_SIGN_LIST_FCLOSE", ret = EOF); 6934 if (ret == EOF) { 6935 bam_error(CLOSE_FAIL, UFS_SIGNATURE_LIST".tmp", 6936 strerror(error)); 6937 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6938 return (0); 6939 } 6940 6941 /* Sort the list again */ 6942 (void) snprintf(cmd, sizeof (cmd), 6943 "/usr/bin/sort -u %s.tmp > %s.sorted", 6944 UFS_SIGNATURE_LIST, UFS_SIGNATURE_LIST); 6945 6946 ret = exec_cmd(cmd, NULL); 6947 INJECT_ERROR1("ADD_TO_SIGN_LIST_SORT", ret = 1); 6948 if (ret != 0) { 6949 bam_error(GRUBSIGN_SORT_FAILED); 6950 (void) unlink(UFS_SIGNATURE_LIST".sorted"); 6951 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6952 return (0); 6953 } 6954 6955 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6956 6957 ret = rename(UFS_SIGNATURE_LIST".sorted", UFS_SIGNATURE_LIST); 6958 error = errno; 6959 INJECT_ERROR1("ADD_TO_SIGN_LIST_RENAME2", ret = -1); 6960 if (ret == -1) { 6961 bam_error(RENAME_FAIL, UFS_SIGNATURE_LIST, strerror(error)); 6962 (void) unlink(UFS_SIGNATURE_LIST".sorted"); 6963 return (0); 6964 } 6965 6966 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6967 6968 return (0); 6969 } 6970 6971 static int 6972 set_signature(char *osroot, char *osdev, char *sign, char *fstype) 6973 { 6974 int ret; 6975 const char *fcn = "set_signature()"; 6976 6977 BAM_DPRINTF((D_FUNC_ENTRY4, fcn, osroot, osdev, sign, fstype)); 6978 6979 ret = set_backup(osroot, osdev, sign, fstype); 6980 INJECT_ERROR1("SET_SIGNATURE_BACKUP", ret = -1); 6981 if (ret == -1) { 6982 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 6983 bam_error(SET_BACKUP_FAILED, sign, osroot, osdev); 6984 return (-1); 6985 } 6986 6987 ret = set_primary(osroot, osdev, sign, fstype); 6988 INJECT_ERROR1("SET_SIGNATURE_PRIMARY", ret = -1); 6989 6990 if (ret == 0) { 6991 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6992 } else { 6993 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 6994 bam_error(SET_PRIMARY_FAILED, sign, osroot, osdev); 6995 6996 } 6997 return (ret); 6998 } 6999 7000 char * 7001 get_grubsign(char *osroot, char *osdev) 7002 { 7003 char *grubsign; /* (<sign>,#,#) */ 7004 char *slice; 7005 int fdiskpart; 7006 char *sign; 7007 char *fstype; 7008 int ret; 7009 const char *fcn = "get_grubsign()"; 7010 7011 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, osroot, osdev)); 7012 fstype = get_fstype(osroot); 7013 INJECT_ERROR1("GET_GRUBSIGN_FSTYPE", fstype = NULL); 7014 if (fstype == NULL) { 7015 bam_error(GET_FSTYPE_FAILED, osroot); 7016 return (NULL); 7017 } 7018 7019 sign = find_existing_sign(osroot, osdev, fstype); 7020 INJECT_ERROR1("FIND_EXISTING_SIGN", sign = NULL); 7021 if (sign == NULL) { 7022 BAM_DPRINTF((D_GET_GRUBSIGN_NO_EXISTING, fcn, osroot, osdev)); 7023 sign = create_new_sign(osdev, fstype); 7024 INJECT_ERROR1("CREATE_NEW_SIGN", sign = NULL); 7025 if (sign == NULL) { 7026 bam_error(GRUBSIGN_CREATE_FAIL, osdev); 7027 free(fstype); 7028 return (NULL); 7029 } 7030 } 7031 7032 ret = set_signature(osroot, osdev, sign, fstype); 7033 INJECT_ERROR1("SET_SIGNATURE_FAIL", ret = -1); 7034 if (ret == -1) { 7035 bam_error(GRUBSIGN_WRITE_FAIL, osdev); 7036 free(sign); 7037 free(fstype); 7038 (void) unlink(UFS_SIGNATURE_LIST); 7039 return (NULL); 7040 } 7041 7042 free(fstype); 7043 7044 if (bam_verbose) 7045 bam_print(GRUBSIGN_FOUND_OR_CREATED, sign, osdev); 7046 7047 fdiskpart = get_partition(osdev); 7048 INJECT_ERROR1("GET_GRUBSIGN_FDISK", fdiskpart = -1); 7049 if (fdiskpart == -1) { 7050 bam_error(FDISKPART_FAIL, osdev); 7051 free(sign); 7052 return (NULL); 7053 } 7054 7055 slice = strrchr(osdev, 's'); 7056 7057 grubsign = s_calloc(1, MAXNAMELEN + 10); 7058 if (slice) { 7059 (void) snprintf(grubsign, MAXNAMELEN + 10, "(%s,%d,%c)", 7060 sign, fdiskpart, slice[1] + 'a' - '0'); 7061 } else 7062 (void) snprintf(grubsign, MAXNAMELEN + 10, "(%s,%d)", 7063 sign, fdiskpart); 7064 7065 free(sign); 7066 7067 BAM_DPRINTF((D_GET_GRUBSIGN_SUCCESS, fcn, grubsign)); 7068 7069 return (grubsign); 7070 } 7071 7072 static char * 7073 get_title(char *rootdir) 7074 { 7075 static char title[80]; 7076 char *cp = NULL; 7077 char release[PATH_MAX]; 7078 FILE *fp; 7079 const char *fcn = "get_title()"; 7080 7081 /* open the /etc/release file */ 7082 (void) snprintf(release, sizeof (release), "%s/etc/release", rootdir); 7083 7084 fp = fopen(release, "r"); 7085 if (fp == NULL) { 7086 bam_error(OPEN_FAIL, release, strerror(errno)); 7087 cp = NULL; 7088 goto out; 7089 } 7090 7091 while (s_fgets(title, sizeof (title), fp) != NULL) { 7092 cp = strstr(title, "Solaris"); 7093 if (cp) 7094 break; 7095 } 7096 (void) fclose(fp); 7097 7098 out: 7099 cp = cp ? cp : "Solaris"; 7100 7101 BAM_DPRINTF((D_GET_TITLE, fcn, cp)); 7102 7103 return (cp); 7104 } 7105 7106 char * 7107 get_special(char *mountp) 7108 { 7109 FILE *mntfp; 7110 struct mnttab mp = {0}; 7111 struct mnttab mpref = {0}; 7112 int error; 7113 int ret; 7114 const char *fcn = "get_special()"; 7115 7116 INJECT_ERROR1("GET_SPECIAL_MNTPT", mountp = NULL); 7117 if (mountp == NULL) { 7118 bam_error(GET_SPECIAL_NULL_MNTPT); 7119 return (NULL); 7120 } 7121 7122 mntfp = fopen(MNTTAB, "r"); 7123 error = errno; 7124 INJECT_ERROR1("GET_SPECIAL_MNTTAB_OPEN", mntfp = NULL); 7125 if (mntfp == NULL) { 7126 bam_error(OPEN_FAIL, MNTTAB, strerror(error)); 7127 return (NULL); 7128 } 7129 7130 if (*mountp == '\0') 7131 mpref.mnt_mountp = "/"; 7132 else 7133 mpref.mnt_mountp = mountp; 7134 7135 ret = getmntany(mntfp, &mp, &mpref); 7136 INJECT_ERROR1("GET_SPECIAL_MNTTAB_SEARCH", ret = 1); 7137 if (ret != 0) { 7138 (void) fclose(mntfp); 7139 BAM_DPRINTF((D_GET_SPECIAL_NOT_IN_MNTTAB, fcn, mountp)); 7140 return (NULL); 7141 } 7142 (void) fclose(mntfp); 7143 7144 BAM_DPRINTF((D_GET_SPECIAL, fcn, mp.mnt_special)); 7145 7146 return (s_strdup(mp.mnt_special)); 7147 } 7148 7149 static void 7150 free_physarray(char **physarray, int n) 7151 { 7152 int i; 7153 const char *fcn = "free_physarray()"; 7154 7155 assert(physarray); 7156 assert(n); 7157 7158 BAM_DPRINTF((D_FUNC_ENTRY_N1, fcn, n)); 7159 7160 for (i = 0; i < n; i++) { 7161 free(physarray[i]); 7162 } 7163 free(physarray); 7164 7165 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 7166 } 7167 7168 static int 7169 zfs_get_physical(char *special, char ***physarray, int *n) 7170 { 7171 char sdup[PATH_MAX]; 7172 char cmd[PATH_MAX]; 7173 char dsk[PATH_MAX]; 7174 char *pool; 7175 filelist_t flist = {0}; 7176 line_t *lp; 7177 line_t *startlp; 7178 char *comp1; 7179 int i; 7180 int ret; 7181 const char *fcn = "zfs_get_physical()"; 7182 7183 assert(special); 7184 7185 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, special)); 7186 7187 INJECT_ERROR1("INVALID_ZFS_SPECIAL", special = "/foo"); 7188 if (special[0] == '/') { 7189 bam_error(INVALID_ZFS_SPECIAL, special); 7190 return (-1); 7191 } 7192 7193 (void) strlcpy(sdup, special, sizeof (sdup)); 7194 7195 pool = strtok(sdup, "/"); 7196 INJECT_ERROR1("ZFS_GET_PHYS_POOL", pool = NULL); 7197 if (pool == NULL) { 7198 bam_error(CANT_FIND_POOL_FROM_SPECIAL, special); 7199 return (-1); 7200 } 7201 7202 (void) snprintf(cmd, sizeof (cmd), "/sbin/zpool status %s", pool); 7203 7204 ret = exec_cmd(cmd, &flist); 7205 INJECT_ERROR1("ZFS_GET_PHYS_STATUS", ret = 1); 7206 if (ret != 0) { 7207 bam_error(ZFS_GET_POOL_STATUS, pool); 7208 return (-1); 7209 } 7210 7211 INJECT_ERROR1("ZFS_GET_PHYS_STATUS_OUT", flist.head = NULL); 7212 if (flist.head == NULL) { 7213 bam_error(BAD_ZPOOL_STATUS, pool); 7214 filelist_free(&flist); 7215 return (-1); 7216 } 7217 7218 for (lp = flist.head; lp; lp = lp->next) { 7219 BAM_DPRINTF((D_STRTOK_ZPOOL_STATUS, fcn, lp->line)); 7220 comp1 = strtok(lp->line, " \t"); 7221 if (comp1 == NULL) { 7222 free(lp->line); 7223 lp->line = NULL; 7224 } else { 7225 comp1 = s_strdup(comp1); 7226 free(lp->line); 7227 lp->line = comp1; 7228 } 7229 } 7230 7231 for (lp = flist.head; lp; lp = lp->next) { 7232 if (lp->line == NULL) 7233 continue; 7234 if (strcmp(lp->line, pool) == 0) { 7235 BAM_DPRINTF((D_FOUND_POOL_IN_ZPOOL_STATUS, fcn, pool)); 7236 break; 7237 } 7238 } 7239 7240 if (lp == NULL) { 7241 bam_error(NO_POOL_IN_ZPOOL_STATUS, pool); 7242 filelist_free(&flist); 7243 return (-1); 7244 } 7245 7246 startlp = lp->next; 7247 for (i = 0, lp = startlp; lp; lp = lp->next) { 7248 if (lp->line == NULL) 7249 continue; 7250 if (strcmp(lp->line, "mirror") == 0) 7251 continue; 7252 if (lp->line[0] == '\0' || strcmp(lp->line, "errors:") == 0) 7253 break; 7254 i++; 7255 BAM_DPRINTF((D_COUNTING_ZFS_PHYS, fcn, i)); 7256 } 7257 7258 if (i == 0) { 7259 bam_error(NO_PHYS_IN_ZPOOL_STATUS, pool); 7260 filelist_free(&flist); 7261 return (-1); 7262 } 7263 7264 *n = i; 7265 *physarray = s_calloc(*n, sizeof (char *)); 7266 for (i = 0, lp = startlp; lp; lp = lp->next) { 7267 if (lp->line == NULL) 7268 continue; 7269 if (strcmp(lp->line, "mirror") == 0) 7270 continue; 7271 if (strcmp(lp->line, "errors:") == 0) 7272 break; 7273 if (strncmp(lp->line, "/dev/dsk/", strlen("/dev/dsk/")) != 0 && 7274 strncmp(lp->line, "/dev/rdsk/", 7275 strlen("/dev/rdsk/")) != 0) { 7276 (void) snprintf(dsk, sizeof (dsk), "/dev/rdsk/%s", 7277 lp->line); 7278 } else { 7279 (void) strlcpy(dsk, lp->line, sizeof (dsk)); 7280 } 7281 BAM_DPRINTF((D_ADDING_ZFS_PHYS, fcn, dsk, pool)); 7282 (*physarray)[i++] = s_strdup(dsk); 7283 } 7284 7285 assert(i == *n); 7286 7287 filelist_free(&flist); 7288 7289 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 7290 return (0); 7291 } 7292 7293 /* 7294 * Certain services needed to run metastat successfully may not 7295 * be enabled. Enable them now. 7296 */ 7297 /* 7298 * Checks if the specified service is online 7299 * Returns: 1 if the service is online 7300 * 0 if the service is not online 7301 * -1 on error 7302 */ 7303 static int 7304 is_svc_online(char *svc) 7305 { 7306 char *state; 7307 const char *fcn = "is_svc_online()"; 7308 7309 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, svc)); 7310 7311 state = smf_get_state(svc); 7312 INJECT_ERROR2("GET_SVC_STATE", free(state), state = NULL); 7313 if (state == NULL) { 7314 bam_error(GET_SVC_STATE_ERR, svc); 7315 return (-1); 7316 } 7317 BAM_DPRINTF((D_GOT_SVC_STATUS, fcn, svc)); 7318 7319 if (strcmp(state, SCF_STATE_STRING_ONLINE) == 0) { 7320 BAM_DPRINTF((D_SVC_ONLINE, fcn, svc)); 7321 free(state); 7322 return (1); 7323 } 7324 7325 BAM_DPRINTF((D_SVC_NOT_ONLINE, fcn, state, svc)); 7326 7327 free(state); 7328 7329 return (0); 7330 } 7331 7332 static int 7333 enable_svc(char *svc) 7334 { 7335 int ret; 7336 int sleeptime; 7337 const char *fcn = "enable_svc()"; 7338 7339 ret = is_svc_online(svc); 7340 if (ret == -1) { 7341 bam_error(SVC_IS_ONLINE_FAILED, svc); 7342 return (-1); 7343 } else if (ret == 1) { 7344 BAM_DPRINTF((D_SVC_ALREADY_ONLINE, fcn, svc)); 7345 return (0); 7346 } 7347 7348 /* Service is not enabled. Enable it now. */ 7349 ret = smf_enable_instance(svc, 0); 7350 INJECT_ERROR1("ENABLE_SVC_FAILED", ret = -1); 7351 if (ret != 0) { 7352 bam_error(ENABLE_SVC_FAILED, svc); 7353 return (-1); 7354 } 7355 7356 BAM_DPRINTF((D_SVC_ONLINE_INITIATED, fcn, svc)); 7357 7358 sleeptime = 0; 7359 do { 7360 ret = is_svc_online(svc); 7361 INJECT_ERROR1("SVC_ONLINE_SUCCESS", ret = 1); 7362 INJECT_ERROR1("SVC_ONLINE_FAILURE", ret = -1); 7363 INJECT_ERROR1("SVC_ONLINE_NOTYET", ret = 0); 7364 if (ret == -1) { 7365 bam_error(ERR_SVC_GET_ONLINE, svc); 7366 return (-1); 7367 } else if (ret == 1) { 7368 BAM_DPRINTF((D_SVC_NOW_ONLINE, fcn, svc)); 7369 return (1); 7370 } 7371 (void) sleep(1); 7372 } while (++sleeptime < 60); 7373 7374 bam_error(TIMEOUT_ENABLE_SVC, svc); 7375 7376 return (-1); 7377 } 7378 7379 static int 7380 ufs_get_physical(char *special, char ***physarray, int *n) 7381 { 7382 char cmd[PATH_MAX]; 7383 char *shortname; 7384 filelist_t flist = {0}; 7385 char *meta; 7386 char *type; 7387 char *comp1; 7388 char *comp2; 7389 char *comp3; 7390 char *comp4; 7391 int i; 7392 line_t *lp; 7393 int ret; 7394 char *svc; 7395 const char *fcn = "ufs_get_physical()"; 7396 7397 assert(special); 7398 7399 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, special)); 7400 7401 if (strncmp(special, "/dev/md/", strlen("/dev/md/")) != 0) { 7402 bam_error(UFS_GET_PHYS_NOT_SVM, special); 7403 return (-1); 7404 } 7405 7406 if (strncmp(special, "/dev/md/dsk/", strlen("/dev/md/dsk/")) == 0) { 7407 shortname = special + strlen("/dev/md/dsk/"); 7408 } else if (strncmp(special, "/dev/md/rdsk/", 7409 strlen("/dev/md/rdsk/")) == 0) { 7410 shortname = special + strlen("/dev/md/rdsk"); 7411 } else { 7412 bam_error(UFS_GET_PHYS_INVALID_SVM, special); 7413 return (-1); 7414 } 7415 7416 BAM_DPRINTF((D_UFS_SVM_SHORT, fcn, special, shortname)); 7417 7418 svc = "network/rpc/meta:default"; 7419 if (enable_svc(svc) == -1) { 7420 bam_error(UFS_SVM_METASTAT_SVC_ERR, svc); 7421 } 7422 7423 (void) snprintf(cmd, sizeof (cmd), "/sbin/metastat -p %s", shortname); 7424 7425 ret = exec_cmd(cmd, &flist); 7426 INJECT_ERROR1("UFS_SVM_METASTAT", ret = 1); 7427 if (ret != 0) { 7428 bam_error(UFS_SVM_METASTAT_ERR, shortname); 7429 return (-1); 7430 } 7431 7432 INJECT_ERROR1("UFS_SVM_METASTAT_OUT", flist.head = NULL); 7433 if (flist.head == NULL) { 7434 bam_error(BAD_UFS_SVM_METASTAT, shortname); 7435 filelist_free(&flist); 7436 return (-1); 7437 } 7438 7439 /* 7440 * Check if not a mirror. We only parse a single metadevice 7441 * if not a mirror 7442 */ 7443 meta = strtok(flist.head->line, " \t"); 7444 type = strtok(NULL, " \t"); 7445 if (meta == NULL || type == NULL) { 7446 bam_error(ERROR_PARSE_UFS_SVM_METASTAT, shortname); 7447 filelist_free(&flist); 7448 return (-1); 7449 } 7450 if (strcmp(type, "-m") != 0) { 7451 comp1 = strtok(NULL, " \t"); 7452 comp2 = strtok(NULL, " \t"); 7453 if (comp1 == NULL || comp2 != NULL) { 7454 bam_error(INVALID_UFS_SVM_METASTAT, shortname); 7455 filelist_free(&flist); 7456 return (-1); 7457 } 7458 BAM_DPRINTF((D_UFS_SVM_ONE_COMP, fcn, comp1, shortname)); 7459 *physarray = s_calloc(1, sizeof (char *)); 7460 (*physarray)[0] = s_strdup(comp1); 7461 *n = 1; 7462 filelist_free(&flist); 7463 return (0); 7464 } 7465 7466 /* 7467 * Okay we have a mirror. Everything after the first line 7468 * is a submirror 7469 */ 7470 for (i = 0, lp = flist.head->next; lp; lp = lp->next) { 7471 if (strstr(lp->line, "/dev/dsk/") == NULL && 7472 strstr(lp->line, "/dev/rdsk/") == NULL) { 7473 bam_error(CANNOT_PARSE_UFS_SVM_METASTAT, shortname); 7474 filelist_free(&flist); 7475 return (-1); 7476 } 7477 i++; 7478 } 7479 7480 *physarray = s_calloc(i, sizeof (char *)); 7481 *n = i; 7482 7483 for (i = 0, lp = flist.head->next; lp; lp = lp->next) { 7484 comp1 = strtok(lp->line, " \t"); 7485 comp2 = strtok(NULL, " \t"); 7486 comp3 = strtok(NULL, " \t"); 7487 comp4 = strtok(NULL, " \t"); 7488 7489 if (comp3 == NULL || comp4 == NULL || 7490 (strncmp(comp4, "/dev/dsk/", strlen("/dev/dsk/")) != 0 && 7491 strncmp(comp4, "/dev/rdsk/", strlen("/dev/rdsk/")) != 0)) { 7492 bam_error(CANNOT_PARSE_UFS_SVM_SUBMIRROR, shortname); 7493 filelist_free(&flist); 7494 free_physarray(*physarray, *n); 7495 return (-1); 7496 } 7497 7498 (*physarray)[i++] = s_strdup(comp4); 7499 } 7500 7501 assert(i == *n); 7502 7503 filelist_free(&flist); 7504 7505 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 7506 return (0); 7507 } 7508 7509 static int 7510 get_physical(char *menu_root, char ***physarray, int *n) 7511 { 7512 char *special; 7513 int ret; 7514 const char *fcn = "get_physical()"; 7515 7516 assert(menu_root); 7517 assert(physarray); 7518 assert(n); 7519 7520 *physarray = NULL; 7521 *n = 0; 7522 7523 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, menu_root)); 7524 7525 /* First get the device special file from /etc/mnttab */ 7526 special = get_special(menu_root); 7527 INJECT_ERROR1("GET_PHYSICAL_SPECIAL", special = NULL); 7528 if (special == NULL) { 7529 bam_error(GET_SPECIAL_NULL, menu_root); 7530 return (-1); 7531 } 7532 7533 /* If already a physical device nothing to do */ 7534 if (strncmp(special, "/dev/dsk/", strlen("/dev/dsk/")) == 0 || 7535 strncmp(special, "/dev/rdsk/", strlen("/dev/rdsk/")) == 0) { 7536 BAM_DPRINTF((D_GET_PHYSICAL_ALREADY, fcn, menu_root, special)); 7537 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 7538 *physarray = s_calloc(1, sizeof (char *)); 7539 (*physarray)[0] = special; 7540 *n = 1; 7541 return (0); 7542 } 7543 7544 if (is_zfs(menu_root)) { 7545 ret = zfs_get_physical(special, physarray, n); 7546 } else if (is_ufs(menu_root)) { 7547 ret = ufs_get_physical(special, physarray, n); 7548 } else { 7549 bam_error(GET_PHYSICAL_NOTSUP_FSTYPE, menu_root, special); 7550 ret = -1; 7551 } 7552 7553 free(special); 7554 7555 INJECT_ERROR1("GET_PHYSICAL_RET", ret = -1); 7556 if (ret == -1) { 7557 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 7558 } else { 7559 int i; 7560 assert (*n > 0); 7561 for (i = 0; i < *n; i++) { 7562 BAM_DPRINTF((D_GET_PHYSICAL_RET, fcn, (*physarray)[i])); 7563 } 7564 } 7565 7566 return (ret); 7567 } 7568 7569 static int 7570 is_bootdisk(char *osroot, char *physical) 7571 { 7572 int ret; 7573 char *grubroot; 7574 char *bootp; 7575 const char *fcn = "is_bootdisk()"; 7576 7577 assert(osroot); 7578 assert(physical); 7579 7580 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, osroot, physical)); 7581 7582 bootp = strstr(physical, "p0:boot"); 7583 if (bootp) 7584 *bootp = '\0'; 7585 /* 7586 * We just want the BIOS mapping for menu disk. 7587 * Don't pass menu_root to get_grubroot() as the 7588 * check that it is used for is not relevant here. 7589 * The osroot is immaterial as well - it is only used to 7590 * to find create_diskmap script. Everything hinges on 7591 * "physical" 7592 */ 7593 grubroot = get_grubroot(osroot, physical, NULL); 7594 7595 INJECT_ERROR1("IS_BOOTDISK_GRUBROOT", grubroot = NULL); 7596 if (grubroot == NULL) { 7597 if (bam_verbose) 7598 bam_error(NO_GRUBROOT_FOR_DISK, physical); 7599 return (0); 7600 } 7601 ret = grubroot[3] == '0'; 7602 free(grubroot); 7603 7604 BAM_DPRINTF((D_RETURN_RET, fcn, ret)); 7605 7606 return (ret); 7607 } 7608 7609 /* 7610 * Check if menu is on the boot device 7611 * Return 0 (false) on error 7612 */ 7613 static int 7614 menu_on_bootdisk(char *osroot, char *menu_root) 7615 { 7616 char **physarray; 7617 int ret; 7618 int n; 7619 int i; 7620 int on_bootdisk; 7621 const char *fcn = "menu_on_bootdisk()"; 7622 7623 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, osroot, menu_root)); 7624 7625 ret = get_physical(menu_root, &physarray, &n); 7626 INJECT_ERROR1("MENU_ON_BOOTDISK_PHYSICAL", ret = -1); 7627 if (ret != 0) { 7628 bam_error(GET_PHYSICAL_MENU_NULL, menu_root); 7629 return (0); 7630 } 7631 7632 assert(physarray); 7633 assert(n > 0); 7634 7635 on_bootdisk = 0; 7636 for (i = 0; i < n; i++) { 7637 assert(strncmp(physarray[i], "/dev/dsk/", 7638 strlen("/dev/dsk/")) == 0 || 7639 strncmp(physarray[i], "/dev/rdsk/", 7640 strlen("/dev/rdsk/")) == 0); 7641 7642 BAM_DPRINTF((D_CHECK_ON_BOOTDISK, fcn, physarray[i])); 7643 if (is_bootdisk(osroot, physarray[i])) { 7644 on_bootdisk = 1; 7645 BAM_DPRINTF((D_IS_ON_BOOTDISK, fcn, physarray[i])); 7646 } 7647 } 7648 7649 free_physarray(physarray, n); 7650 7651 INJECT_ERROR1("ON_BOOTDISK_YES", on_bootdisk = 1); 7652 INJECT_ERROR1("ON_BOOTDISK_NO", on_bootdisk = 0); 7653 if (on_bootdisk) { 7654 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 7655 } else { 7656 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 7657 } 7658 7659 return (on_bootdisk); 7660 } 7661 7662 void 7663 bam_add_line(menu_t *mp, entry_t *entry, line_t *prev, line_t *lp) 7664 { 7665 const char *fcn = "bam_add_line()"; 7666 7667 assert(mp); 7668 assert(entry); 7669 assert(prev); 7670 assert(lp); 7671 7672 lp->next = prev->next; 7673 if (prev->next) { 7674 BAM_DPRINTF((D_ADD_LINE_PREV_NEXT, fcn)); 7675 prev->next->prev = lp; 7676 } else { 7677 BAM_DPRINTF((D_ADD_LINE_NOT_PREV_NEXT, fcn)); 7678 } 7679 prev->next = lp; 7680 lp->prev = prev; 7681 7682 if (entry->end == prev) { 7683 BAM_DPRINTF((D_ADD_LINE_LAST_LINE_IN_ENTRY, fcn)); 7684 entry->end = lp; 7685 } 7686 if (mp->end == prev) { 7687 assert(lp->next == NULL); 7688 mp->end = lp; 7689 BAM_DPRINTF((D_ADD_LINE_LAST_LINE_IN_MENU, fcn)); 7690 } 7691 } 7692 7693 /* 7694 * look for matching bootadm entry with specified parameters 7695 * Here are the rules (based on existing usage): 7696 * - If title is specified, match on title only 7697 * - Else, match on root/findroot, kernel, and module. 7698 * Note that, if root_opt is non-zero, the absence of 7699 * root line is considered a match. 7700 */ 7701 static entry_t * 7702 find_boot_entry( 7703 menu_t *mp, 7704 char *title, 7705 char *kernel, 7706 char *findroot, 7707 char *root, 7708 char *module, 7709 int root_opt, 7710 int *entry_num) 7711 { 7712 int i; 7713 line_t *lp; 7714 entry_t *ent; 7715 const char *fcn = "find_boot_entry()"; 7716 7717 if (entry_num) 7718 *entry_num = BAM_ERROR; 7719 7720 /* find matching entry */ 7721 for (i = 0, ent = mp->entries; ent; i++, ent = ent->next) { 7722 lp = ent->start; 7723 7724 /* first line of entry must be bootadm comment */ 7725 lp = ent->start; 7726 if (lp->flags != BAM_COMMENT || 7727 strcmp(lp->arg, BAM_BOOTADM_HDR) != 0) { 7728 continue; 7729 } 7730 7731 /* advance to title line */ 7732 lp = lp->next; 7733 if (title) { 7734 if (lp->flags == BAM_TITLE && lp->arg && 7735 strcmp(lp->arg, title) == 0) { 7736 BAM_DPRINTF((D_MATCHED_TITLE, fcn, title)); 7737 break; 7738 } 7739 BAM_DPRINTF((D_NOMATCH_TITLE, fcn, title, lp->arg)); 7740 continue; /* check title only */ 7741 } 7742 7743 lp = lp->next; /* advance to root line */ 7744 if (lp == NULL) { 7745 continue; 7746 } else if (strcmp(lp->cmd, menu_cmds[FINDROOT_CMD]) == 0) { 7747 INJECT_ERROR1("FIND_BOOT_ENTRY_NULL_FINDROOT", 7748 findroot = NULL); 7749 if (findroot == NULL) { 7750 BAM_DPRINTF((D_NOMATCH_FINDROOT_NULL, 7751 fcn, lp->arg)); 7752 continue; 7753 } 7754 /* findroot command found, try match */ 7755 if (strcmp(lp->arg, findroot) != 0) { 7756 BAM_DPRINTF((D_NOMATCH_FINDROOT, 7757 fcn, findroot, lp->arg)); 7758 continue; 7759 } 7760 BAM_DPRINTF((D_MATCHED_FINDROOT, fcn, findroot)); 7761 lp = lp->next; /* advance to kernel line */ 7762 } else if (strcmp(lp->cmd, menu_cmds[ROOT_CMD]) == 0) { 7763 INJECT_ERROR1("FIND_BOOT_ENTRY_NULL_ROOT", root = NULL); 7764 if (root == NULL) { 7765 BAM_DPRINTF((D_NOMATCH_ROOT_NULL, 7766 fcn, lp->arg)); 7767 continue; 7768 } 7769 /* root cmd found, try match */ 7770 if (strcmp(lp->arg, root) != 0) { 7771 BAM_DPRINTF((D_NOMATCH_ROOT, 7772 fcn, root, lp->arg)); 7773 continue; 7774 } 7775 BAM_DPRINTF((D_MATCHED_ROOT, fcn, root)); 7776 lp = lp->next; /* advance to kernel line */ 7777 } else { 7778 INJECT_ERROR1("FIND_BOOT_ENTRY_ROOT_OPT_NO", 7779 root_opt = 0); 7780 INJECT_ERROR1("FIND_BOOT_ENTRY_ROOT_OPT_YES", 7781 root_opt = 1); 7782 /* no root command, see if root is optional */ 7783 if (root_opt == 0) { 7784 BAM_DPRINTF((D_NO_ROOT_OPT, fcn)); 7785 continue; 7786 } 7787 BAM_DPRINTF((D_ROOT_OPT, fcn)); 7788 } 7789 7790 if (lp == NULL || lp->next == NULL) { 7791 continue; 7792 } 7793 7794 if (kernel && 7795 (!check_cmd(lp->cmd, KERNEL_CMD, lp->arg, kernel))) { 7796 if (!(ent->flags & BAM_ENTRY_FAILSAFE) || 7797 !(ent->flags & BAM_ENTRY_DBOOT) || 7798 strcmp(kernel, DIRECT_BOOT_FAILSAFE_LINE) != 0) 7799 continue; 7800 7801 ent->flags |= BAM_ENTRY_UPGFSKERNEL; 7802 7803 } 7804 BAM_DPRINTF((D_KERNEL_MATCH, fcn, kernel, lp->arg)); 7805 7806 /* 7807 * Check for matching module entry (failsafe or normal). 7808 * If it fails to match, we go around the loop again. 7809 * For xpv entries, there are two module lines, so we 7810 * do the check twice. 7811 */ 7812 lp = lp->next; /* advance to module line */ 7813 if (check_cmd(lp->cmd, MODULE_CMD, lp->arg, module) || 7814 (((lp = lp->next) != NULL) && 7815 check_cmd(lp->cmd, MODULE_CMD, lp->arg, module))) { 7816 /* match found */ 7817 BAM_DPRINTF((D_MODULE_MATCH, fcn, module, lp->arg)); 7818 break; 7819 } 7820 7821 if (strcmp(module, FAILSAFE_ARCHIVE) == 0 && 7822 (strcmp(lp->prev->arg, FAILSAFE_ARCHIVE_32) == 0 || 7823 strcmp(lp->prev->arg, FAILSAFE_ARCHIVE_64) == 0)) { 7824 ent->flags |= BAM_ENTRY_UPGFSMODULE; 7825 break; 7826 } 7827 7828 } 7829 7830 if (ent && entry_num) { 7831 *entry_num = i; 7832 } 7833 7834 if (ent) { 7835 BAM_DPRINTF((D_RETURN_RET, fcn, i)); 7836 } else { 7837 BAM_DPRINTF((D_RETURN_RET, fcn, BAM_ERROR)); 7838 } 7839 return (ent); 7840 } 7841 7842 static int 7843 update_boot_entry(menu_t *mp, char *title, char *findroot, char *root, 7844 char *kernel, char *mod_kernel, char *module, int root_opt) 7845 { 7846 int i; 7847 int change_kernel = 0; 7848 entry_t *ent; 7849 line_t *lp; 7850 line_t *tlp; 7851 char linebuf[BAM_MAXLINE]; 7852 const char *fcn = "update_boot_entry()"; 7853 7854 /* note: don't match on title, it's updated on upgrade */ 7855 ent = find_boot_entry(mp, NULL, kernel, findroot, root, module, 7856 root_opt, &i); 7857 if ((ent == NULL) && (bam_direct == BAM_DIRECT_DBOOT)) { 7858 /* 7859 * We may be upgrading a kernel from multiboot to 7860 * directboot. Look for a multiboot entry. A multiboot 7861 * entry will not have a findroot line. 7862 */ 7863 ent = find_boot_entry(mp, NULL, "multiboot", NULL, root, 7864 MULTIBOOT_ARCHIVE, root_opt, &i); 7865 if (ent != NULL) { 7866 BAM_DPRINTF((D_UPGRADE_FROM_MULTIBOOT, fcn, root)); 7867 change_kernel = 1; 7868 } 7869 } else if (ent) { 7870 BAM_DPRINTF((D_FOUND_FINDROOT, fcn, findroot)); 7871 } 7872 7873 if (ent == NULL) { 7874 BAM_DPRINTF((D_ENTRY_NOT_FOUND_CREATING, fcn, findroot)); 7875 return (add_boot_entry(mp, title, findroot, 7876 kernel, mod_kernel, module, NULL)); 7877 } 7878 7879 /* replace title of existing entry and update findroot line */ 7880 lp = ent->start; 7881 lp = lp->next; /* title line */ 7882 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 7883 menu_cmds[TITLE_CMD], menu_cmds[SEP_CMD], title); 7884 free(lp->arg); 7885 free(lp->line); 7886 lp->arg = s_strdup(title); 7887 lp->line = s_strdup(linebuf); 7888 BAM_DPRINTF((D_CHANGING_TITLE, fcn, title)); 7889 7890 tlp = lp; /* title line */ 7891 lp = lp->next; /* root line */ 7892 7893 /* if no root or findroot command, create a new line_t */ 7894 if (strcmp(lp->cmd, menu_cmds[ROOT_CMD]) != 0 && 7895 strcmp(lp->cmd, menu_cmds[FINDROOT_CMD]) != 0) { 7896 lp = s_calloc(1, sizeof (line_t)); 7897 bam_add_line(mp, ent, tlp, lp); 7898 } else { 7899 free(lp->cmd); 7900 free(lp->sep); 7901 free(lp->arg); 7902 free(lp->line); 7903 } 7904 7905 lp->cmd = s_strdup(menu_cmds[FINDROOT_CMD]); 7906 lp->sep = s_strdup(menu_cmds[SEP_CMD]); 7907 lp->arg = s_strdup(findroot); 7908 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 7909 menu_cmds[FINDROOT_CMD], menu_cmds[SEP_CMD], findroot); 7910 lp->line = s_strdup(linebuf); 7911 BAM_DPRINTF((D_ADDING_FINDROOT_LINE, fcn, findroot)); 7912 7913 /* kernel line */ 7914 lp = lp->next; 7915 7916 if (ent->flags & BAM_ENTRY_UPGFSKERNEL) { 7917 char *params = NULL; 7918 7919 params = strstr(lp->line, "-s"); 7920 if (params != NULL) 7921 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s%s", 7922 menu_cmds[KERNEL_DOLLAR_CMD], menu_cmds[SEP_CMD], 7923 kernel, params+2); 7924 else 7925 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 7926 menu_cmds[KERNEL_DOLLAR_CMD], menu_cmds[SEP_CMD], 7927 kernel); 7928 7929 free(lp->cmd); 7930 free(lp->arg); 7931 free(lp->line); 7932 lp->cmd = s_strdup(menu_cmds[KERNEL_DOLLAR_CMD]); 7933 lp->arg = s_strdup(strstr(linebuf, "/")); 7934 lp->line = s_strdup(linebuf); 7935 ent->flags &= ~BAM_ENTRY_UPGFSKERNEL; 7936 BAM_DPRINTF((D_ADDING_KERNEL_DOLLAR, fcn, lp->prev->cmd)); 7937 } 7938 7939 if (change_kernel) { 7940 /* 7941 * We're upgrading from multiboot to directboot. 7942 */ 7943 if (strcmp(lp->cmd, menu_cmds[KERNEL_CMD]) == 0) { 7944 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 7945 menu_cmds[KERNEL_DOLLAR_CMD], menu_cmds[SEP_CMD], 7946 kernel); 7947 free(lp->cmd); 7948 free(lp->arg); 7949 free(lp->line); 7950 lp->cmd = s_strdup(menu_cmds[KERNEL_DOLLAR_CMD]); 7951 lp->arg = s_strdup(kernel); 7952 lp->line = s_strdup(linebuf); 7953 lp = lp->next; 7954 BAM_DPRINTF((D_ADDING_KERNEL_DOLLAR, fcn, kernel)); 7955 } 7956 if (strcmp(lp->cmd, menu_cmds[MODULE_CMD]) == 0) { 7957 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 7958 menu_cmds[MODULE_DOLLAR_CMD], menu_cmds[SEP_CMD], 7959 module); 7960 free(lp->cmd); 7961 free(lp->arg); 7962 free(lp->line); 7963 lp->cmd = s_strdup(menu_cmds[MODULE_DOLLAR_CMD]); 7964 lp->arg = s_strdup(module); 7965 lp->line = s_strdup(linebuf); 7966 lp = lp->next; 7967 BAM_DPRINTF((D_ADDING_MODULE_DOLLAR, fcn, module)); 7968 } 7969 } 7970 7971 /* module line */ 7972 lp = lp->next; 7973 7974 if (ent->flags & BAM_ENTRY_UPGFSMODULE) { 7975 if (strcmp(lp->cmd, menu_cmds[MODULE_CMD]) == 0) { 7976 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 7977 menu_cmds[MODULE_DOLLAR_CMD], menu_cmds[SEP_CMD], 7978 module); 7979 free(lp->cmd); 7980 free(lp->arg); 7981 free(lp->line); 7982 lp->cmd = s_strdup(menu_cmds[MODULE_DOLLAR_CMD]); 7983 lp->arg = s_strdup(module); 7984 lp->line = s_strdup(linebuf); 7985 lp = lp->next; 7986 ent->flags &= ~BAM_ENTRY_UPGFSMODULE; 7987 BAM_DPRINTF((D_ADDING_MODULE_DOLLAR, fcn, module)); 7988 } 7989 } 7990 7991 BAM_DPRINTF((D_RETURN_RET, fcn, i)); 7992 return (i); 7993 } 7994 7995 int 7996 root_optional(char *osroot, char *menu_root) 7997 { 7998 char *ospecial; 7999 char *mspecial; 8000 char *slash; 8001 int root_opt; 8002 int ret1; 8003 int ret2; 8004 const char *fcn = "root_optional()"; 8005 8006 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, osroot, menu_root)); 8007 8008 /* 8009 * For all filesystems except ZFS, a straight compare of osroot 8010 * and menu_root will tell us if root is optional. 8011 * For ZFS, the situation is complicated by the fact that 8012 * menu_root and osroot are always different 8013 */ 8014 ret1 = is_zfs(osroot); 8015 ret2 = is_zfs(menu_root); 8016 INJECT_ERROR1("ROOT_OPT_NOT_ZFS", ret1 = 0); 8017 if (!ret1 || !ret2) { 8018 BAM_DPRINTF((D_ROOT_OPT_NOT_ZFS, fcn, osroot, menu_root)); 8019 root_opt = (strcmp(osroot, menu_root) == 0); 8020 goto out; 8021 } 8022 8023 ospecial = get_special(osroot); 8024 INJECT_ERROR1("ROOT_OPTIONAL_OSPECIAL", ospecial = NULL); 8025 if (ospecial == NULL) { 8026 bam_error(GET_OSROOT_SPECIAL_ERR, osroot); 8027 return (0); 8028 } 8029 BAM_DPRINTF((D_ROOT_OPTIONAL_OSPECIAL, fcn, ospecial, osroot)); 8030 8031 mspecial = get_special(menu_root); 8032 INJECT_ERROR1("ROOT_OPTIONAL_MSPECIAL", mspecial = NULL); 8033 if (mspecial == NULL) { 8034 bam_error(GET_MENU_ROOT_SPECIAL_ERR, menu_root); 8035 free(ospecial); 8036 return (0); 8037 } 8038 BAM_DPRINTF((D_ROOT_OPTIONAL_MSPECIAL, fcn, mspecial, menu_root)); 8039 8040 slash = strchr(ospecial, '/'); 8041 if (slash) 8042 *slash = '\0'; 8043 BAM_DPRINTF((D_ROOT_OPTIONAL_FIXED_OSPECIAL, fcn, ospecial, osroot)); 8044 8045 root_opt = (strcmp(ospecial, mspecial) == 0); 8046 8047 free(ospecial); 8048 free(mspecial); 8049 8050 out: 8051 INJECT_ERROR1("ROOT_OPTIONAL_NO", root_opt = 0); 8052 INJECT_ERROR1("ROOT_OPTIONAL_YES", root_opt = 1); 8053 if (root_opt) { 8054 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 8055 } else { 8056 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 8057 } 8058 8059 return (root_opt); 8060 } 8061 8062 /*ARGSUSED*/ 8063 static error_t 8064 update_entry(menu_t *mp, char *menu_root, char *osdev) 8065 { 8066 int entry; 8067 char *grubsign; 8068 char *grubroot; 8069 char *title; 8070 char osroot[PATH_MAX]; 8071 char *failsafe_kernel = NULL; 8072 struct stat sbuf; 8073 char failsafe[256]; 8074 char failsafe_64[256]; 8075 int ret; 8076 const char *fcn = "update_entry()"; 8077 8078 assert(mp); 8079 assert(menu_root); 8080 assert(osdev); 8081 assert(bam_root); 8082 8083 BAM_DPRINTF((D_FUNC_ENTRY3, fcn, menu_root, osdev, bam_root)); 8084 8085 (void) strlcpy(osroot, bam_root, sizeof (osroot)); 8086 8087 title = get_title(osroot); 8088 assert(title); 8089 8090 grubsign = get_grubsign(osroot, osdev); 8091 INJECT_ERROR1("GET_GRUBSIGN_FAIL", grubsign = NULL); 8092 if (grubsign == NULL) { 8093 bam_error(GET_GRUBSIGN_ERROR, osroot, osdev); 8094 return (BAM_ERROR); 8095 } 8096 8097 /* 8098 * It is not a fatal error if get_grubroot() fails 8099 * We no longer rely on biosdev to populate the 8100 * menu 8101 */ 8102 grubroot = get_grubroot(osroot, osdev, menu_root); 8103 INJECT_ERROR1("GET_GRUBROOT_FAIL", grubroot = NULL); 8104 if (grubroot) { 8105 BAM_DPRINTF((D_GET_GRUBROOT_SUCCESS, 8106 fcn, osroot, osdev, menu_root)); 8107 } else { 8108 BAM_DPRINTF((D_GET_GRUBROOT_FAILURE, 8109 fcn, osroot, osdev, menu_root)); 8110 } 8111 8112 /* add the entry for normal Solaris */ 8113 INJECT_ERROR1("UPDATE_ENTRY_MULTIBOOT", 8114 bam_direct = BAM_DIRECT_MULTIBOOT); 8115 if (bam_direct == BAM_DIRECT_DBOOT) { 8116 entry = update_boot_entry(mp, title, grubsign, grubroot, 8117 (bam_zfs ? DIRECT_BOOT_KERNEL_ZFS : DIRECT_BOOT_KERNEL), 8118 NULL, DIRECT_BOOT_ARCHIVE, 8119 root_optional(osroot, menu_root)); 8120 BAM_DPRINTF((D_UPDATED_BOOT_ENTRY, fcn, bam_zfs, grubsign)); 8121 if ((entry != BAM_ERROR) && (bam_is_hv == BAM_HV_PRESENT)) { 8122 (void) update_boot_entry(mp, NEW_HV_ENTRY, grubsign, 8123 grubroot, XEN_MENU, bam_zfs ? 8124 XEN_KERNEL_MODULE_LINE_ZFS : XEN_KERNEL_MODULE_LINE, 8125 DIRECT_BOOT_ARCHIVE, 8126 root_optional(osroot, menu_root)); 8127 BAM_DPRINTF((D_UPDATED_HV_ENTRY, 8128 fcn, bam_zfs, grubsign)); 8129 } 8130 } else { 8131 entry = update_boot_entry(mp, title, grubsign, grubroot, 8132 MULTI_BOOT, NULL, MULTIBOOT_ARCHIVE, 8133 root_optional(osroot, menu_root)); 8134 8135 BAM_DPRINTF((D_UPDATED_MULTIBOOT_ENTRY, fcn, grubsign)); 8136 } 8137 8138 /* 8139 * Add the entry for failsafe archive. On a bfu'd system, the 8140 * failsafe may be different than the installed kernel. 8141 */ 8142 (void) snprintf(failsafe, sizeof (failsafe), "%s%s", 8143 osroot, FAILSAFE_ARCHIVE_32); 8144 (void) snprintf(failsafe_64, sizeof (failsafe_64), "%s%s", 8145 osroot, FAILSAFE_ARCHIVE_64); 8146 8147 /* 8148 * Check if at least one of the two archives exists 8149 * Using $ISADIR as the default line, we have an entry which works 8150 * for both the cases. 8151 */ 8152 8153 if (stat(failsafe, &sbuf) == 0 || stat(failsafe_64, &sbuf) == 0) { 8154 8155 /* Figure out where the kernel line should point */ 8156 (void) snprintf(failsafe, sizeof (failsafe), "%s%s", osroot, 8157 DIRECT_BOOT_FAILSAFE_32); 8158 (void) snprintf(failsafe_64, sizeof (failsafe_64), "%s%s", 8159 osroot, DIRECT_BOOT_FAILSAFE_64); 8160 if (stat(failsafe, &sbuf) == 0 || 8161 stat(failsafe_64, &sbuf) == 0) { 8162 failsafe_kernel = DIRECT_BOOT_FAILSAFE_LINE; 8163 } else { 8164 (void) snprintf(failsafe, sizeof (failsafe), "%s%s", 8165 osroot, MULTI_BOOT_FAILSAFE); 8166 if (stat(failsafe, &sbuf) == 0) { 8167 failsafe_kernel = MULTI_BOOT_FAILSAFE_LINE; 8168 } 8169 } 8170 if (failsafe_kernel != NULL) { 8171 (void) update_boot_entry(mp, FAILSAFE_TITLE, grubsign, 8172 grubroot, failsafe_kernel, NULL, FAILSAFE_ARCHIVE, 8173 root_optional(osroot, menu_root)); 8174 BAM_DPRINTF((D_UPDATED_FAILSAFE_ENTRY, fcn, 8175 failsafe_kernel)); 8176 } 8177 } 8178 free(grubroot); 8179 8180 INJECT_ERROR1("UPDATE_ENTRY_ERROR", entry = BAM_ERROR); 8181 if (entry == BAM_ERROR) { 8182 bam_error(FAILED_TO_ADD_BOOT_ENTRY, title, grubsign); 8183 free(grubsign); 8184 return (BAM_ERROR); 8185 } 8186 free(grubsign); 8187 8188 update_numbering(mp); 8189 ret = set_global(mp, menu_cmds[DEFAULT_CMD], entry); 8190 INJECT_ERROR1("SET_DEFAULT_ERROR", ret = BAM_ERROR); 8191 if (ret == BAM_ERROR) { 8192 bam_error(SET_DEFAULT_FAILED, entry); 8193 } 8194 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 8195 return (BAM_WRITE); 8196 } 8197 8198 static void 8199 save_default_entry(menu_t *mp, const char *which) 8200 { 8201 int lineNum; 8202 int entryNum; 8203 int entry = 0; /* default is 0 */ 8204 char linebuf[BAM_MAXLINE]; 8205 line_t *lp = mp->curdefault; 8206 const char *fcn = "save_default_entry()"; 8207 8208 if (mp->start) { 8209 lineNum = mp->end->lineNum; 8210 entryNum = mp->end->entryNum; 8211 } else { 8212 lineNum = LINE_INIT; 8213 entryNum = ENTRY_INIT; 8214 } 8215 8216 if (lp) 8217 entry = s_strtol(lp->arg); 8218 8219 (void) snprintf(linebuf, sizeof (linebuf), "#%s%d", which, entry); 8220 BAM_DPRINTF((D_SAVING_DEFAULT_TO, fcn, linebuf)); 8221 line_parser(mp, linebuf, &lineNum, &entryNum); 8222 BAM_DPRINTF((D_SAVED_DEFAULT_TO, fcn, lineNum, entryNum)); 8223 } 8224 8225 static void 8226 restore_default_entry(menu_t *mp, const char *which, line_t *lp) 8227 { 8228 int entry; 8229 char *str; 8230 const char *fcn = "restore_default_entry()"; 8231 8232 if (lp == NULL) { 8233 BAM_DPRINTF((D_RESTORE_DEFAULT_NULL, fcn)); 8234 return; /* nothing to restore */ 8235 } 8236 8237 BAM_DPRINTF((D_RESTORE_DEFAULT_STR, fcn, which)); 8238 8239 str = lp->arg + strlen(which); 8240 entry = s_strtol(str); 8241 (void) set_global(mp, menu_cmds[DEFAULT_CMD], entry); 8242 8243 BAM_DPRINTF((D_RESTORED_DEFAULT_TO, fcn, entry)); 8244 8245 /* delete saved old default line */ 8246 unlink_line(mp, lp); 8247 line_free(lp); 8248 } 8249 8250 /* 8251 * This function is for supporting reboot with args. 8252 * The opt value can be: 8253 * NULL delete temp entry, if present 8254 * entry=<n> switches default entry to <n> 8255 * else treated as boot-args and setup a temperary menu entry 8256 * and make it the default 8257 * Note that we are always rebooting the current OS instance 8258 * so osroot == / always. 8259 */ 8260 #define REBOOT_TITLE "Solaris_reboot_transient" 8261 8262 /*ARGSUSED*/ 8263 static error_t 8264 update_temp(menu_t *mp, char *dummy, char *opt) 8265 { 8266 int entry; 8267 char *osdev; 8268 char *fstype; 8269 char *sign; 8270 char *opt_ptr; 8271 char *path; 8272 char kernbuf[BUFSIZ]; 8273 char args_buf[BUFSIZ]; 8274 char signbuf[PATH_MAX]; 8275 int ret; 8276 const char *fcn = "update_temp()"; 8277 8278 assert(mp); 8279 assert(dummy == NULL); 8280 8281 /* opt can be NULL */ 8282 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, opt ? opt : "<NULL>")); 8283 BAM_DPRINTF((D_BAM_ROOT, fcn, bam_alt_root, bam_root)); 8284 8285 if (bam_alt_root || bam_rootlen != 1 || 8286 strcmp(bam_root, "/") != 0 || 8287 strcmp(rootbuf, "/") != 0) { 8288 bam_error(ALT_ROOT_INVALID, bam_root); 8289 return (BAM_ERROR); 8290 } 8291 8292 /* If no option, delete exiting reboot menu entry */ 8293 if (opt == NULL) { 8294 entry_t *ent; 8295 BAM_DPRINTF((D_OPT_NULL, fcn)); 8296 ent = find_boot_entry(mp, REBOOT_TITLE, NULL, NULL, 8297 NULL, NULL, 0, &entry); 8298 if (ent == NULL) { /* not found is ok */ 8299 BAM_DPRINTF((D_TRANSIENT_NOTFOUND, fcn)); 8300 return (BAM_SUCCESS); 8301 } 8302 (void) delete_boot_entry(mp, entry, DBE_PRINTERR); 8303 restore_default_entry(mp, BAM_OLDDEF, mp->olddefault); 8304 mp->olddefault = NULL; 8305 BAM_DPRINTF((D_RESTORED_DEFAULT, fcn)); 8306 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 8307 return (BAM_WRITE); 8308 } 8309 8310 /* if entry= is specified, set the default entry */ 8311 if (strncmp(opt, "entry=", strlen("entry=")) == 0) { 8312 int entryNum = s_strtol(opt + strlen("entry=")); 8313 BAM_DPRINTF((D_ENTRY_EQUALS, fcn, opt)); 8314 if (selector(mp, opt, &entry, NULL) == BAM_SUCCESS) { 8315 /* this is entry=# option */ 8316 ret = set_global(mp, menu_cmds[DEFAULT_CMD], entry); 8317 BAM_DPRINTF((D_ENTRY_SET_IS, fcn, entry, ret)); 8318 return (ret); 8319 } else { 8320 bam_error(SET_DEFAULT_FAILED, entryNum); 8321 return (BAM_ERROR); 8322 } 8323 } 8324 8325 /* 8326 * add a new menu entry based on opt and make it the default 8327 */ 8328 8329 fstype = get_fstype("/"); 8330 INJECT_ERROR1("REBOOT_FSTYPE_NULL", fstype = NULL); 8331 if (fstype == NULL) { 8332 bam_error(REBOOT_FSTYPE_FAILED); 8333 return (BAM_ERROR); 8334 } 8335 8336 osdev = get_special("/"); 8337 INJECT_ERROR1("REBOOT_SPECIAL_NULL", osdev = NULL); 8338 if (osdev == NULL) { 8339 free(fstype); 8340 bam_error(REBOOT_SPECIAL_FAILED); 8341 return (BAM_ERROR); 8342 } 8343 8344 sign = find_existing_sign("/", osdev, fstype); 8345 INJECT_ERROR1("REBOOT_SIGN_NULL", sign = NULL); 8346 if (sign == NULL) { 8347 free(fstype); 8348 free(osdev); 8349 bam_error(REBOOT_SIGN_FAILED); 8350 return (BAM_ERROR); 8351 } 8352 8353 free(osdev); 8354 (void) strlcpy(signbuf, sign, sizeof (signbuf)); 8355 free(sign); 8356 8357 assert(strchr(signbuf, '(') == NULL && strchr(signbuf, ',') == NULL && 8358 strchr(signbuf, ')') == NULL); 8359 8360 /* 8361 * There is no alternate root while doing reboot with args 8362 * This version of bootadm is only delivered with a DBOOT 8363 * version of Solaris. 8364 */ 8365 INJECT_ERROR1("REBOOT_NOT_DBOOT", bam_direct = BAM_DIRECT_MULTIBOOT); 8366 if (bam_direct != BAM_DIRECT_DBOOT) { 8367 free(fstype); 8368 bam_error(REBOOT_DIRECT_FAILED); 8369 return (BAM_ERROR); 8370 } 8371 8372 /* add an entry for Solaris reboot */ 8373 if (opt[0] == '-') { 8374 /* It's an option - first see if boot-file is set */ 8375 ret = get_kernel(mp, KERNEL_CMD, kernbuf, sizeof (kernbuf)); 8376 INJECT_ERROR1("REBOOT_GET_KERNEL", ret = BAM_ERROR); 8377 if (ret != BAM_SUCCESS) { 8378 free(fstype); 8379 bam_error(REBOOT_GET_KERNEL_FAILED); 8380 return (BAM_ERROR); 8381 } 8382 if (kernbuf[0] == '\0') 8383 (void) strlcpy(kernbuf, DIRECT_BOOT_KERNEL, 8384 sizeof (kernbuf)); 8385 /* 8386 * If this is a zfs file system and kernbuf does not 8387 * have "-B $ZFS-BOOTFS" string yet, add it. 8388 */ 8389 if (strcmp(fstype, "zfs") == 0 && !strstr(kernbuf, ZFS_BOOT)) { 8390 (void) strlcat(kernbuf, " ", sizeof (kernbuf)); 8391 (void) strlcat(kernbuf, ZFS_BOOT, sizeof (kernbuf)); 8392 } 8393 (void) strlcat(kernbuf, " ", sizeof (kernbuf)); 8394 (void) strlcat(kernbuf, opt, sizeof (kernbuf)); 8395 BAM_DPRINTF((D_REBOOT_OPTION, fcn, kernbuf)); 8396 } else if (opt[0] == '/') { 8397 /* It's a full path, so write it out. */ 8398 (void) strlcpy(kernbuf, opt, sizeof (kernbuf)); 8399 8400 /* 8401 * If someone runs: 8402 * 8403 * # eeprom boot-args='-kd' 8404 * # reboot /platform/i86pc/kernel/unix 8405 * 8406 * we want to use the boot-args as part of the boot 8407 * line. On the other hand, if someone runs: 8408 * 8409 * # reboot "/platform/i86pc/kernel/unix -kd" 8410 * 8411 * we don't need to mess with boot-args. If there's 8412 * no space in the options string, assume we're in the 8413 * first case. 8414 */ 8415 if (strchr(opt, ' ') == NULL) { 8416 ret = get_kernel(mp, ARGS_CMD, args_buf, 8417 sizeof (args_buf)); 8418 INJECT_ERROR1("REBOOT_GET_ARGS", ret = BAM_ERROR); 8419 if (ret != BAM_SUCCESS) { 8420 free(fstype); 8421 bam_error(REBOOT_GET_ARGS_FAILED); 8422 return (BAM_ERROR); 8423 } 8424 8425 if (args_buf[0] != '\0') { 8426 (void) strlcat(kernbuf, " ", sizeof (kernbuf)); 8427 (void) strlcat(kernbuf, args_buf, 8428 sizeof (kernbuf)); 8429 } 8430 } 8431 BAM_DPRINTF((D_REBOOT_ABSPATH, fcn, kernbuf)); 8432 } else { 8433 /* 8434 * It may be a partial path, or it may be a partial 8435 * path followed by options. Assume that only options 8436 * follow a space. If someone sends us a kernel path 8437 * that includes a space, they deserve to be broken. 8438 */ 8439 opt_ptr = strchr(opt, ' '); 8440 if (opt_ptr != NULL) { 8441 *opt_ptr = '\0'; 8442 } 8443 8444 path = expand_path(opt); 8445 if (path != NULL) { 8446 (void) strlcpy(kernbuf, path, sizeof (kernbuf)); 8447 free(path); 8448 8449 /* 8450 * If there were options given, use those. 8451 * Otherwise, copy over the default options. 8452 */ 8453 if (opt_ptr != NULL) { 8454 /* Restore the space in opt string */ 8455 *opt_ptr = ' '; 8456 (void) strlcat(kernbuf, opt_ptr, 8457 sizeof (kernbuf)); 8458 } else { 8459 ret = get_kernel(mp, ARGS_CMD, args_buf, 8460 sizeof (args_buf)); 8461 INJECT_ERROR1("UPDATE_TEMP_PARTIAL_ARGS", 8462 ret = BAM_ERROR); 8463 if (ret != BAM_SUCCESS) { 8464 free(fstype); 8465 bam_error(REBOOT_GET_ARGS_FAILED); 8466 return (BAM_ERROR); 8467 } 8468 8469 if (args_buf[0] != '\0') { 8470 (void) strlcat(kernbuf, " ", 8471 sizeof (kernbuf)); 8472 (void) strlcat(kernbuf, 8473 args_buf, sizeof (kernbuf)); 8474 } 8475 } 8476 BAM_DPRINTF((D_REBOOT_RESOLVED_PARTIAL, fcn, kernbuf)); 8477 } else { 8478 free(fstype); 8479 bam_error(UNKNOWN_KERNEL, opt); 8480 bam_print_stderr(UNKNOWN_KERNEL_REBOOT); 8481 return (BAM_ERROR); 8482 } 8483 } 8484 free(fstype); 8485 entry = add_boot_entry(mp, REBOOT_TITLE, signbuf, kernbuf, 8486 NULL, NULL, NULL); 8487 INJECT_ERROR1("REBOOT_ADD_BOOT_ENTRY", entry = BAM_ERROR); 8488 if (entry == BAM_ERROR) { 8489 bam_error(REBOOT_WITH_ARGS_ADD_ENTRY_FAILED); 8490 return (BAM_ERROR); 8491 } 8492 8493 save_default_entry(mp, BAM_OLDDEF); 8494 ret = set_global(mp, menu_cmds[DEFAULT_CMD], entry); 8495 INJECT_ERROR1("REBOOT_SET_GLOBAL", ret = BAM_ERROR); 8496 if (ret == BAM_ERROR) { 8497 bam_error(REBOOT_SET_DEFAULT_FAILED, entry); 8498 } 8499 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 8500 return (BAM_WRITE); 8501 } 8502 8503 error_t 8504 set_global(menu_t *mp, char *globalcmd, int val) 8505 { 8506 line_t *lp; 8507 line_t *found; 8508 line_t *last; 8509 char *cp; 8510 char *str; 8511 char prefix[BAM_MAXLINE]; 8512 size_t len; 8513 const char *fcn = "set_global()"; 8514 8515 assert(mp); 8516 assert(globalcmd); 8517 8518 if (strcmp(globalcmd, menu_cmds[DEFAULT_CMD]) == 0) { 8519 INJECT_ERROR1("SET_GLOBAL_VAL_NEG", val = -1); 8520 INJECT_ERROR1("SET_GLOBAL_MENU_EMPTY", mp->end = NULL); 8521 INJECT_ERROR1("SET_GLOBAL_VAL_TOO_BIG", val = 100); 8522 if (val < 0 || mp->end == NULL || val > mp->end->entryNum) { 8523 (void) snprintf(prefix, sizeof (prefix), "%d", val); 8524 bam_error(INVALID_ENTRY, prefix); 8525 return (BAM_ERROR); 8526 } 8527 } 8528 8529 found = last = NULL; 8530 for (lp = mp->start; lp; lp = lp->next) { 8531 if (lp->flags != BAM_GLOBAL) 8532 continue; 8533 8534 last = lp; /* track the last global found */ 8535 8536 INJECT_ERROR1("SET_GLOBAL_NULL_CMD", lp->cmd = NULL); 8537 if (lp->cmd == NULL) { 8538 bam_error(NO_CMD, lp->lineNum); 8539 continue; 8540 } 8541 if (strcmp(globalcmd, lp->cmd) != 0) 8542 continue; 8543 8544 BAM_DPRINTF((D_FOUND_GLOBAL, fcn, globalcmd)); 8545 8546 if (found) { 8547 bam_error(DUP_CMD, globalcmd, lp->lineNum, bam_root); 8548 } 8549 found = lp; 8550 } 8551 8552 if (found == NULL) { 8553 lp = s_calloc(1, sizeof (line_t)); 8554 if (last == NULL) { 8555 lp->next = mp->start; 8556 mp->start = lp; 8557 mp->end = (mp->end) ? mp->end : lp; 8558 } else { 8559 lp->next = last->next; 8560 last->next = lp; 8561 if (lp->next == NULL) 8562 mp->end = lp; 8563 } 8564 lp->flags = BAM_GLOBAL; /* other fields not needed for writes */ 8565 len = strlen(globalcmd) + strlen(menu_cmds[SEP_CMD]); 8566 len += 10; /* val < 10 digits */ 8567 lp->line = s_calloc(1, len); 8568 (void) snprintf(lp->line, len, "%s%s%d", 8569 globalcmd, menu_cmds[SEP_CMD], val); 8570 BAM_DPRINTF((D_SET_GLOBAL_WROTE_NEW, fcn, lp->line)); 8571 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 8572 return (BAM_WRITE); 8573 } 8574 8575 /* 8576 * We are changing an existing entry. Retain any prefix whitespace, 8577 * but overwrite everything else. This preserves tabs added for 8578 * readability. 8579 */ 8580 str = found->line; 8581 cp = prefix; 8582 while (*str == ' ' || *str == '\t') 8583 *(cp++) = *(str++); 8584 *cp = '\0'; /* Terminate prefix */ 8585 len = strlen(prefix) + strlen(globalcmd); 8586 len += strlen(menu_cmds[SEP_CMD]) + 10; 8587 8588 free(found->line); 8589 found->line = s_calloc(1, len); 8590 (void) snprintf(found->line, len, 8591 "%s%s%s%d", prefix, globalcmd, menu_cmds[SEP_CMD], val); 8592 8593 BAM_DPRINTF((D_SET_GLOBAL_REPLACED, fcn, found->line)); 8594 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 8595 return (BAM_WRITE); /* need a write to menu */ 8596 } 8597 8598 /* 8599 * partial_path may be anything like "kernel/unix" or "kmdb". Try to 8600 * expand it to a full unix path. The calling function is expected to 8601 * output a message if an error occurs and NULL is returned. 8602 */ 8603 static char * 8604 expand_path(const char *partial_path) 8605 { 8606 int new_path_len; 8607 char *new_path; 8608 char new_path2[PATH_MAX]; 8609 struct stat sb; 8610 const char *fcn = "expand_path()"; 8611 8612 new_path_len = strlen(partial_path) + 64; 8613 new_path = s_calloc(1, new_path_len); 8614 8615 /* First, try the simplest case - something like "kernel/unix" */ 8616 (void) snprintf(new_path, new_path_len, "/platform/i86pc/%s", 8617 partial_path); 8618 if (stat(new_path, &sb) == 0) { 8619 BAM_DPRINTF((D_EXPAND_PATH, fcn, new_path)); 8620 return (new_path); 8621 } 8622 8623 if (strcmp(partial_path, "kmdb") == 0) { 8624 (void) snprintf(new_path, new_path_len, "%s -k", 8625 DIRECT_BOOT_KERNEL); 8626 BAM_DPRINTF((D_EXPAND_PATH, fcn, new_path)); 8627 return (new_path); 8628 } 8629 8630 /* 8631 * We've quickly reached unsupported usage. Try once more to 8632 * see if we were just given a glom name. 8633 */ 8634 (void) snprintf(new_path, new_path_len, "/platform/i86pc/%s/unix", 8635 partial_path); 8636 (void) snprintf(new_path2, PATH_MAX, "/platform/i86pc/%s/amd64/unix", 8637 partial_path); 8638 if (stat(new_path, &sb) == 0) { 8639 if (stat(new_path2, &sb) == 0) { 8640 /* 8641 * We matched both, so we actually 8642 * want to write the $ISADIR version. 8643 */ 8644 (void) snprintf(new_path, new_path_len, 8645 "/platform/i86pc/kernel/%s/$ISADIR/unix", 8646 partial_path); 8647 } 8648 BAM_DPRINTF((D_EXPAND_PATH, fcn, new_path)); 8649 return (new_path); 8650 } 8651 8652 free(new_path); 8653 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 8654 return (NULL); 8655 } 8656 8657 /* 8658 * The kernel cmd and arg have been changed, so 8659 * check whether the archive line needs to change. 8660 */ 8661 static void 8662 set_archive_line(entry_t *entryp, line_t *kernelp) 8663 { 8664 line_t *lp = entryp->start; 8665 char *new_archive; 8666 menu_cmd_t m_cmd; 8667 const char *fcn = "set_archive_line()"; 8668 8669 for (; lp != NULL; lp = lp->next) { 8670 if (strncmp(lp->cmd, menu_cmds[MODULE_CMD], 8671 sizeof (menu_cmds[MODULE_CMD]) - 1) == 0) { 8672 break; 8673 } 8674 8675 INJECT_ERROR1("SET_ARCHIVE_LINE_END_ENTRY", lp = entryp->end); 8676 if (lp == entryp->end) { 8677 BAM_DPRINTF((D_ARCHIVE_LINE_NONE, fcn, 8678 entryp->entryNum)); 8679 return; 8680 } 8681 } 8682 INJECT_ERROR1("SET_ARCHIVE_LINE_END_MENU", lp = NULL); 8683 if (lp == NULL) { 8684 BAM_DPRINTF((D_ARCHIVE_LINE_NONE, fcn, entryp->entryNum)); 8685 return; 8686 } 8687 8688 if (strstr(kernelp->arg, "$ISADIR") != NULL) { 8689 new_archive = DIRECT_BOOT_ARCHIVE; 8690 m_cmd = MODULE_DOLLAR_CMD; 8691 } else if (strstr(kernelp->arg, "amd64") != NULL) { 8692 new_archive = DIRECT_BOOT_ARCHIVE_64; 8693 m_cmd = MODULE_CMD; 8694 } else { 8695 new_archive = DIRECT_BOOT_ARCHIVE_32; 8696 m_cmd = MODULE_CMD; 8697 } 8698 8699 if (strcmp(lp->arg, new_archive) == 0) { 8700 BAM_DPRINTF((D_ARCHIVE_LINE_NOCHANGE, fcn, lp->arg)); 8701 return; 8702 } 8703 8704 if (strcmp(lp->cmd, menu_cmds[m_cmd]) != 0) { 8705 free(lp->cmd); 8706 lp->cmd = s_strdup(menu_cmds[m_cmd]); 8707 } 8708 8709 free(lp->arg); 8710 lp->arg = s_strdup(new_archive); 8711 update_line(lp); 8712 BAM_DPRINTF((D_ARCHIVE_LINE_REPLACED, fcn, lp->line)); 8713 } 8714 8715 /* 8716 * Title for an entry to set properties that once went in bootenv.rc. 8717 */ 8718 #define BOOTENV_RC_TITLE "Solaris bootenv rc" 8719 8720 /* 8721 * If path is NULL, return the kernel (optnum == KERNEL_CMD) or arguments 8722 * (optnum == ARGS_CMD) in the argument buf. If path is a zero-length 8723 * string, reset the value to the default. If path is a non-zero-length 8724 * string, set the kernel or arguments. 8725 */ 8726 static error_t 8727 get_set_kernel( 8728 menu_t *mp, 8729 menu_cmd_t optnum, 8730 char *path, 8731 char *buf, 8732 size_t bufsize) 8733 { 8734 int entryNum; 8735 int rv = BAM_SUCCESS; 8736 int free_new_path = 0; 8737 entry_t *entryp; 8738 line_t *ptr; 8739 line_t *kernelp; 8740 char *new_arg; 8741 char *old_args; 8742 char *space; 8743 char *new_path; 8744 char old_space; 8745 size_t old_kernel_len; 8746 size_t new_str_len; 8747 char *fstype; 8748 char *osdev; 8749 char *sign; 8750 char signbuf[PATH_MAX]; 8751 int ret; 8752 const char *fcn = "get_set_kernel()"; 8753 8754 assert(bufsize > 0); 8755 8756 ptr = kernelp = NULL; 8757 new_arg = old_args = space = NULL; 8758 new_path = NULL; 8759 buf[0] = '\0'; 8760 8761 INJECT_ERROR1("GET_SET_KERNEL_NOT_DBOOT", 8762 bam_direct = BAM_DIRECT_MULTIBOOT); 8763 if (bam_direct != BAM_DIRECT_DBOOT) { 8764 bam_error(NOT_DBOOT, optnum == KERNEL_CMD ? "kernel" : "args"); 8765 return (BAM_ERROR); 8766 } 8767 8768 /* 8769 * If a user changed the default entry to a non-bootadm controlled 8770 * one, we don't want to mess with it. Just print an error and 8771 * return. 8772 */ 8773 if (mp->curdefault) { 8774 entryNum = s_strtol(mp->curdefault->arg); 8775 for (entryp = mp->entries; entryp; entryp = entryp->next) { 8776 if (entryp->entryNum == entryNum) 8777 break; 8778 } 8779 if ((entryp != NULL) && 8780 ((entryp->flags & (BAM_ENTRY_BOOTADM|BAM_ENTRY_LU)) == 0)) { 8781 bam_error(DEFAULT_NOT_BAM); 8782 return (BAM_ERROR); 8783 } 8784 } 8785 8786 entryp = find_boot_entry(mp, BOOTENV_RC_TITLE, NULL, NULL, NULL, NULL, 8787 0, &entryNum); 8788 8789 if (entryp != NULL) { 8790 for (ptr = entryp->start; ptr && ptr != entryp->end; 8791 ptr = ptr->next) { 8792 if (strncmp(ptr->cmd, menu_cmds[KERNEL_CMD], 8793 sizeof (menu_cmds[KERNEL_CMD]) - 1) == 0) { 8794 kernelp = ptr; 8795 break; 8796 } 8797 } 8798 if (kernelp == NULL) { 8799 bam_error(NO_KERNEL, entryNum); 8800 return (BAM_ERROR); 8801 } 8802 8803 old_kernel_len = strcspn(kernelp->arg, " \t"); 8804 space = old_args = kernelp->arg + old_kernel_len; 8805 while ((*old_args == ' ') || (*old_args == '\t')) 8806 old_args++; 8807 } 8808 8809 if (path == NULL) { 8810 if (entryp == NULL) { 8811 BAM_DPRINTF((D_GET_SET_KERNEL_NO_RC, fcn)); 8812 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 8813 return (BAM_SUCCESS); 8814 } 8815 assert(kernelp); 8816 if (optnum == ARGS_CMD) { 8817 if (old_args[0] != '\0') { 8818 (void) strlcpy(buf, old_args, bufsize); 8819 BAM_DPRINTF((D_GET_SET_KERNEL_ARGS, fcn, buf)); 8820 } 8821 } else { 8822 /* 8823 * We need to print the kernel, so we just turn the 8824 * first space into a '\0' and print the beginning. 8825 * We don't print anything if it's the default kernel. 8826 */ 8827 old_space = *space; 8828 *space = '\0'; 8829 if (strcmp(kernelp->arg, DIRECT_BOOT_KERNEL) != 0) { 8830 (void) strlcpy(buf, kernelp->arg, bufsize); 8831 BAM_DPRINTF((D_GET_SET_KERNEL_KERN, fcn, buf)); 8832 } 8833 *space = old_space; 8834 } 8835 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 8836 return (BAM_SUCCESS); 8837 } 8838 8839 /* 8840 * First, check if we're resetting an entry to the default. 8841 */ 8842 if ((path[0] == '\0') || 8843 ((optnum == KERNEL_CMD) && 8844 (strcmp(path, DIRECT_BOOT_KERNEL) == 0))) { 8845 if ((entryp == NULL) || (kernelp == NULL)) { 8846 /* No previous entry, it's already the default */ 8847 BAM_DPRINTF((D_GET_SET_KERNEL_ALREADY, fcn)); 8848 return (BAM_SUCCESS); 8849 } 8850 8851 /* 8852 * Check if we can delete the entry. If we're resetting the 8853 * kernel command, and the args is already empty, or if we're 8854 * resetting the args command, and the kernel is already the 8855 * default, we can restore the old default and delete the entry. 8856 */ 8857 if (((optnum == KERNEL_CMD) && 8858 ((old_args == NULL) || (old_args[0] == '\0'))) || 8859 ((optnum == ARGS_CMD) && 8860 (strncmp(kernelp->arg, DIRECT_BOOT_KERNEL, 8861 sizeof (DIRECT_BOOT_KERNEL) - 1) == 0))) { 8862 kernelp = NULL; 8863 (void) delete_boot_entry(mp, entryNum, DBE_PRINTERR); 8864 restore_default_entry(mp, BAM_OLD_RC_DEF, 8865 mp->old_rc_default); 8866 mp->old_rc_default = NULL; 8867 rv = BAM_WRITE; 8868 BAM_DPRINTF((D_GET_SET_KERNEL_RESTORE_DEFAULT, fcn)); 8869 goto done; 8870 } 8871 8872 if (optnum == KERNEL_CMD) { 8873 /* 8874 * At this point, we've already checked that old_args 8875 * and entryp are valid pointers. The "+ 2" is for 8876 * a space a the string termination character. 8877 */ 8878 new_str_len = (sizeof (DIRECT_BOOT_KERNEL) - 1) + 8879 strlen(old_args) + 2; 8880 new_arg = s_calloc(1, new_str_len); 8881 (void) snprintf(new_arg, new_str_len, "%s %s", 8882 DIRECT_BOOT_KERNEL, old_args); 8883 free(kernelp->arg); 8884 kernelp->arg = new_arg; 8885 8886 /* 8887 * We have changed the kernel line, so we may need 8888 * to update the archive line as well. 8889 */ 8890 set_archive_line(entryp, kernelp); 8891 BAM_DPRINTF((D_GET_SET_KERNEL_RESET_KERNEL_SET_ARG, 8892 fcn, kernelp->arg)); 8893 } else { 8894 /* 8895 * We're resetting the boot args to nothing, so 8896 * we only need to copy the kernel. We've already 8897 * checked that the kernel is not the default. 8898 */ 8899 new_arg = s_calloc(1, old_kernel_len + 1); 8900 (void) snprintf(new_arg, old_kernel_len + 1, "%s", 8901 kernelp->arg); 8902 free(kernelp->arg); 8903 kernelp->arg = new_arg; 8904 BAM_DPRINTF((D_GET_SET_KERNEL_RESET_ARG_SET_KERNEL, 8905 fcn, kernelp->arg)); 8906 } 8907 rv = BAM_WRITE; 8908 goto done; 8909 } 8910 8911 /* 8912 * Expand the kernel file to a full path, if necessary 8913 */ 8914 if ((optnum == KERNEL_CMD) && (path[0] != '/')) { 8915 new_path = expand_path(path); 8916 if (new_path == NULL) { 8917 bam_error(UNKNOWN_KERNEL, path); 8918 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 8919 return (BAM_ERROR); 8920 } 8921 free_new_path = 1; 8922 } else { 8923 new_path = path; 8924 free_new_path = 0; 8925 } 8926 8927 /* 8928 * At this point, we know we're setting a new value. First, take care 8929 * of the case where there was no previous entry. 8930 */ 8931 if (entryp == NULL) { 8932 8933 /* Similar to code in update_temp */ 8934 fstype = get_fstype("/"); 8935 INJECT_ERROR1("GET_SET_KERNEL_FSTYPE", fstype = NULL); 8936 if (fstype == NULL) { 8937 bam_error(BOOTENV_FSTYPE_FAILED); 8938 rv = BAM_ERROR; 8939 goto done; 8940 } 8941 8942 osdev = get_special("/"); 8943 INJECT_ERROR1("GET_SET_KERNEL_SPECIAL", osdev = NULL); 8944 if (osdev == NULL) { 8945 free(fstype); 8946 bam_error(BOOTENV_SPECIAL_FAILED); 8947 rv = BAM_ERROR; 8948 goto done; 8949 } 8950 8951 sign = find_existing_sign("/", osdev, fstype); 8952 INJECT_ERROR1("GET_SET_KERNEL_SIGN", sign = NULL); 8953 if (sign == NULL) { 8954 free(fstype); 8955 free(osdev); 8956 bam_error(BOOTENV_SIGN_FAILED); 8957 rv = BAM_ERROR; 8958 goto done; 8959 } 8960 8961 free(osdev); 8962 (void) strlcpy(signbuf, sign, sizeof (signbuf)); 8963 free(sign); 8964 assert(strchr(signbuf, '(') == NULL && 8965 strchr(signbuf, ',') == NULL && 8966 strchr(signbuf, ')') == NULL); 8967 8968 if (optnum == KERNEL_CMD) { 8969 if (strcmp(fstype, "zfs") == 0) { 8970 new_str_len = strlen(new_path) + 8971 strlen(ZFS_BOOT) + 8; 8972 new_arg = s_calloc(1, new_str_len); 8973 (void) snprintf(new_arg, new_str_len, "%s %s", 8974 new_path, ZFS_BOOT); 8975 BAM_DPRINTF((D_GET_SET_KERNEL_NEW_KERN, fcn, 8976 new_arg)); 8977 entryNum = add_boot_entry(mp, BOOTENV_RC_TITLE, 8978 signbuf, new_arg, NULL, NULL, NULL); 8979 free(new_arg); 8980 } else { 8981 BAM_DPRINTF((D_GET_SET_KERNEL_NEW_KERN, fcn, 8982 new_path)); 8983 entryNum = add_boot_entry(mp, BOOTENV_RC_TITLE, 8984 signbuf, new_path, NULL, NULL, NULL); 8985 } 8986 } else { 8987 new_str_len = strlen(path) + 8; 8988 if (strcmp(fstype, "zfs") == 0) { 8989 new_str_len += strlen(DIRECT_BOOT_KERNEL_ZFS); 8990 new_arg = s_calloc(1, new_str_len); 8991 (void) snprintf(new_arg, new_str_len, "%s %s", 8992 DIRECT_BOOT_KERNEL_ZFS, path); 8993 } else { 8994 new_str_len += strlen(DIRECT_BOOT_KERNEL); 8995 new_arg = s_calloc(1, new_str_len); 8996 (void) snprintf(new_arg, new_str_len, "%s %s", 8997 DIRECT_BOOT_KERNEL, path); 8998 } 8999 9000 BAM_DPRINTF((D_GET_SET_KERNEL_NEW_ARG, fcn, new_arg)); 9001 entryNum = add_boot_entry(mp, BOOTENV_RC_TITLE, 9002 signbuf, new_arg, NULL, DIRECT_BOOT_ARCHIVE, NULL); 9003 free(new_arg); 9004 } 9005 free(fstype); 9006 INJECT_ERROR1("GET_SET_KERNEL_ADD_BOOT_ENTRY", 9007 entryNum = BAM_ERROR); 9008 if (entryNum == BAM_ERROR) { 9009 bam_error(GET_SET_KERNEL_ADD_BOOT_ENTRY, 9010 BOOTENV_RC_TITLE); 9011 rv = BAM_ERROR; 9012 goto done; 9013 } 9014 save_default_entry(mp, BAM_OLD_RC_DEF); 9015 ret = set_global(mp, menu_cmds[DEFAULT_CMD], entryNum); 9016 INJECT_ERROR1("GET_SET_KERNEL_SET_GLOBAL", ret = BAM_ERROR); 9017 if (ret == BAM_ERROR) { 9018 bam_error(GET_SET_KERNEL_SET_GLOBAL, entryNum); 9019 } 9020 rv = BAM_WRITE; 9021 goto done; 9022 } 9023 9024 /* 9025 * There was already an bootenv entry which we need to edit. 9026 */ 9027 if (optnum == KERNEL_CMD) { 9028 new_str_len = strlen(new_path) + strlen(old_args) + 2; 9029 new_arg = s_calloc(1, new_str_len); 9030 (void) snprintf(new_arg, new_str_len, "%s %s", new_path, 9031 old_args); 9032 free(kernelp->arg); 9033 kernelp->arg = new_arg; 9034 9035 /* 9036 * If we have changed the kernel line, we may need to update 9037 * the archive line as well. 9038 */ 9039 set_archive_line(entryp, kernelp); 9040 BAM_DPRINTF((D_GET_SET_KERNEL_REPLACED_KERNEL_SAME_ARG, fcn, 9041 kernelp->arg)); 9042 } else { 9043 new_str_len = old_kernel_len + strlen(path) + 8; 9044 new_arg = s_calloc(1, new_str_len); 9045 (void) strncpy(new_arg, kernelp->arg, old_kernel_len); 9046 (void) strlcat(new_arg, " ", new_str_len); 9047 (void) strlcat(new_arg, path, new_str_len); 9048 free(kernelp->arg); 9049 kernelp->arg = new_arg; 9050 BAM_DPRINTF((D_GET_SET_KERNEL_SAME_KERNEL_REPLACED_ARG, fcn, 9051 kernelp->arg)); 9052 } 9053 rv = BAM_WRITE; 9054 9055 done: 9056 if ((rv == BAM_WRITE) && kernelp) 9057 update_line(kernelp); 9058 if (free_new_path) 9059 free(new_path); 9060 if (rv == BAM_WRITE) { 9061 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 9062 } else { 9063 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 9064 } 9065 return (rv); 9066 } 9067 9068 static error_t 9069 get_kernel(menu_t *mp, menu_cmd_t optnum, char *buf, size_t bufsize) 9070 { 9071 const char *fcn = "get_kernel()"; 9072 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, menu_cmds[optnum])); 9073 return (get_set_kernel(mp, optnum, NULL, buf, bufsize)); 9074 } 9075 9076 static error_t 9077 set_kernel(menu_t *mp, menu_cmd_t optnum, char *path, char *buf, size_t bufsize) 9078 { 9079 const char *fcn = "set_kernel()"; 9080 assert(path != NULL); 9081 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, menu_cmds[optnum], path)); 9082 return (get_set_kernel(mp, optnum, path, buf, bufsize)); 9083 } 9084 9085 /*ARGSUSED*/ 9086 static error_t 9087 set_option(menu_t *mp, char *dummy, char *opt) 9088 { 9089 int optnum; 9090 int optval; 9091 char *val; 9092 char buf[BUFSIZ] = ""; 9093 error_t rv; 9094 const char *fcn = "set_option()"; 9095 9096 assert(mp); 9097 assert(opt); 9098 assert(dummy == NULL); 9099 9100 /* opt is set from bam_argv[0] and is always non-NULL */ 9101 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, opt)); 9102 9103 val = strchr(opt, '='); 9104 if (val != NULL) { 9105 *val = '\0'; 9106 } 9107 9108 if (strcmp(opt, "default") == 0) { 9109 optnum = DEFAULT_CMD; 9110 } else if (strcmp(opt, "timeout") == 0) { 9111 optnum = TIMEOUT_CMD; 9112 } else if (strcmp(opt, menu_cmds[KERNEL_CMD]) == 0) { 9113 optnum = KERNEL_CMD; 9114 } else if (strcmp(opt, menu_cmds[ARGS_CMD]) == 0) { 9115 optnum = ARGS_CMD; 9116 } else { 9117 bam_error(INVALID_OPTION, opt); 9118 return (BAM_ERROR); 9119 } 9120 9121 /* 9122 * kernel and args are allowed without "=new_value" strings. All 9123 * others cause errors 9124 */ 9125 if ((val == NULL) && (optnum != KERNEL_CMD) && (optnum != ARGS_CMD)) { 9126 bam_error(NO_OPTION_ARG, opt); 9127 return (BAM_ERROR); 9128 } else if (val != NULL) { 9129 *val = '='; 9130 } 9131 9132 if ((optnum == KERNEL_CMD) || (optnum == ARGS_CMD)) { 9133 BAM_DPRINTF((D_SET_OPTION, fcn, menu_cmds[optnum], 9134 val ? val + 1 : "NULL")); 9135 9136 if (val) 9137 rv = set_kernel(mp, optnum, val + 1, buf, sizeof (buf)); 9138 else 9139 rv = get_kernel(mp, optnum, buf, sizeof (buf)); 9140 if ((rv == BAM_SUCCESS) && (buf[0] != '\0')) 9141 (void) printf("%s\n", buf); 9142 } else { 9143 optval = s_strtol(val + 1); 9144 BAM_DPRINTF((D_SET_OPTION, fcn, menu_cmds[optnum], val + 1)); 9145 rv = set_global(mp, menu_cmds[optnum], optval); 9146 } 9147 9148 if (rv == BAM_WRITE || rv == BAM_SUCCESS) { 9149 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 9150 } else { 9151 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 9152 } 9153 9154 return (rv); 9155 } 9156 9157 /* 9158 * The quiet argument suppresses messages. This is used 9159 * when invoked in the context of other commands (e.g. list_entry) 9160 */ 9161 static error_t 9162 read_globals(menu_t *mp, char *menu_path, char *globalcmd, int quiet) 9163 { 9164 line_t *lp; 9165 char *arg; 9166 int done, ret = BAM_SUCCESS; 9167 9168 assert(mp); 9169 assert(menu_path); 9170 assert(globalcmd); 9171 9172 if (mp->start == NULL) { 9173 if (!quiet) 9174 bam_error(NO_MENU, menu_path); 9175 return (BAM_ERROR); 9176 } 9177 9178 done = 0; 9179 for (lp = mp->start; lp; lp = lp->next) { 9180 if (lp->flags != BAM_GLOBAL) 9181 continue; 9182 9183 if (lp->cmd == NULL) { 9184 if (!quiet) 9185 bam_error(NO_CMD, lp->lineNum); 9186 continue; 9187 } 9188 9189 if (strcmp(globalcmd, lp->cmd) != 0) 9190 continue; 9191 9192 /* Found global. Check for duplicates */ 9193 if (done && !quiet) { 9194 bam_error(DUP_CMD, globalcmd, lp->lineNum, bam_root); 9195 ret = BAM_ERROR; 9196 } 9197 9198 arg = lp->arg ? lp->arg : ""; 9199 bam_print(GLOBAL_CMD, globalcmd, arg); 9200 done = 1; 9201 } 9202 9203 if (!done && bam_verbose) 9204 bam_print(NO_ENTRY, globalcmd); 9205 9206 return (ret); 9207 } 9208 9209 static error_t 9210 menu_write(char *root, menu_t *mp) 9211 { 9212 const char *fcn = "menu_write()"; 9213 9214 BAM_DPRINTF((D_MENU_WRITE_ENTER, fcn, root)); 9215 return (list2file(root, MENU_TMP, GRUB_MENU, mp->start)); 9216 } 9217 9218 void 9219 line_free(line_t *lp) 9220 { 9221 if (lp == NULL) 9222 return; 9223 9224 if (lp->cmd) 9225 free(lp->cmd); 9226 if (lp->sep) 9227 free(lp->sep); 9228 if (lp->arg) 9229 free(lp->arg); 9230 if (lp->line) 9231 free(lp->line); 9232 free(lp); 9233 } 9234 9235 static void 9236 linelist_free(line_t *start) 9237 { 9238 line_t *lp; 9239 9240 while (start) { 9241 lp = start; 9242 start = start->next; 9243 line_free(lp); 9244 } 9245 } 9246 9247 static void 9248 filelist_free(filelist_t *flistp) 9249 { 9250 linelist_free(flistp->head); 9251 flistp->head = NULL; 9252 flistp->tail = NULL; 9253 } 9254 9255 static void 9256 menu_free(menu_t *mp) 9257 { 9258 entry_t *ent, *tmp; 9259 assert(mp); 9260 9261 if (mp->start) 9262 linelist_free(mp->start); 9263 ent = mp->entries; 9264 while (ent) { 9265 tmp = ent; 9266 ent = tmp->next; 9267 free(tmp); 9268 } 9269 9270 free(mp); 9271 } 9272 9273 /* 9274 * Utility routines 9275 */ 9276 9277 9278 /* 9279 * Returns 0 on success 9280 * Any other value indicates an error 9281 */ 9282 static int 9283 exec_cmd(char *cmdline, filelist_t *flistp) 9284 { 9285 char buf[BUFSIZ]; 9286 int ret; 9287 FILE *ptr; 9288 sigset_t set; 9289 void (*disp)(int); 9290 9291 /* 9292 * For security 9293 * - only absolute paths are allowed 9294 * - set IFS to space and tab 9295 */ 9296 if (*cmdline != '/') { 9297 bam_error(ABS_PATH_REQ, cmdline); 9298 return (-1); 9299 } 9300 (void) putenv("IFS= \t"); 9301 9302 /* 9303 * We may have been exec'ed with SIGCHLD blocked 9304 * unblock it here 9305 */ 9306 (void) sigemptyset(&set); 9307 (void) sigaddset(&set, SIGCHLD); 9308 if (sigprocmask(SIG_UNBLOCK, &set, NULL) != 0) { 9309 bam_error(CANT_UNBLOCK_SIGCHLD, strerror(errno)); 9310 return (-1); 9311 } 9312 9313 /* 9314 * Set SIGCHLD disposition to SIG_DFL for popen/pclose 9315 */ 9316 disp = sigset(SIGCHLD, SIG_DFL); 9317 if (disp == SIG_ERR) { 9318 bam_error(FAILED_SIG, strerror(errno)); 9319 return (-1); 9320 } 9321 if (disp == SIG_HOLD) { 9322 bam_error(BLOCKED_SIG, cmdline); 9323 return (-1); 9324 } 9325 9326 ptr = popen(cmdline, "r"); 9327 if (ptr == NULL) { 9328 bam_error(POPEN_FAIL, cmdline, strerror(errno)); 9329 return (-1); 9330 } 9331 9332 /* 9333 * If we simply do a pclose() following a popen(), pclose() 9334 * will close the reader end of the pipe immediately even 9335 * if the child process has not started/exited. pclose() 9336 * does wait for cmd to terminate before returning though. 9337 * When the executed command writes its output to the pipe 9338 * there is no reader process and the command dies with 9339 * SIGPIPE. To avoid this we read repeatedly until read 9340 * terminates with EOF. This indicates that the command 9341 * (writer) has closed the pipe and we can safely do a 9342 * pclose(). 9343 * 9344 * Since pclose() does wait for the command to exit, 9345 * we can safely reap the exit status of the command 9346 * from the value returned by pclose() 9347 */ 9348 while (s_fgets(buf, sizeof (buf), ptr) != NULL) { 9349 if (flistp == NULL) { 9350 /* s_fgets strips newlines, so insert them at the end */ 9351 bam_print(PRINT, buf); 9352 } else { 9353 append_to_flist(flistp, buf); 9354 } 9355 } 9356 9357 ret = pclose(ptr); 9358 if (ret == -1) { 9359 bam_error(PCLOSE_FAIL, cmdline, strerror(errno)); 9360 return (-1); 9361 } 9362 9363 if (WIFEXITED(ret)) { 9364 return (WEXITSTATUS(ret)); 9365 } else { 9366 bam_error(EXEC_FAIL, cmdline, ret); 9367 return (-1); 9368 } 9369 } 9370 9371 /* 9372 * Since this function returns -1 on error 9373 * it cannot be used to convert -1. However, 9374 * that is sufficient for what we need. 9375 */ 9376 static long 9377 s_strtol(char *str) 9378 { 9379 long l; 9380 char *res = NULL; 9381 9382 if (str == NULL) { 9383 return (-1); 9384 } 9385 9386 errno = 0; 9387 l = strtol(str, &res, 10); 9388 if (errno || *res != '\0') { 9389 return (-1); 9390 } 9391 9392 return (l); 9393 } 9394 9395 /* 9396 * Wrapper around fputs, that adds a newline (since fputs doesn't) 9397 */ 9398 static int 9399 s_fputs(char *str, FILE *fp) 9400 { 9401 char linebuf[BAM_MAXLINE]; 9402 9403 (void) snprintf(linebuf, sizeof (linebuf), "%s\n", str); 9404 return (fputs(linebuf, fp)); 9405 } 9406 9407 /* 9408 * Wrapper around fgets, that strips newlines returned by fgets 9409 */ 9410 char * 9411 s_fgets(char *buf, int buflen, FILE *fp) 9412 { 9413 int n; 9414 9415 buf = fgets(buf, buflen, fp); 9416 if (buf) { 9417 n = strlen(buf); 9418 if (n == buflen - 1 && buf[n-1] != '\n') 9419 bam_error(TOO_LONG, buflen - 1, buf); 9420 buf[n-1] = (buf[n-1] == '\n') ? '\0' : buf[n-1]; 9421 } 9422 9423 return (buf); 9424 } 9425 9426 void * 9427 s_calloc(size_t nelem, size_t sz) 9428 { 9429 void *ptr; 9430 9431 ptr = calloc(nelem, sz); 9432 if (ptr == NULL) { 9433 bam_error(NO_MEM, nelem*sz); 9434 bam_exit(1); 9435 } 9436 return (ptr); 9437 } 9438 9439 void * 9440 s_realloc(void *ptr, size_t sz) 9441 { 9442 ptr = realloc(ptr, sz); 9443 if (ptr == NULL) { 9444 bam_error(NO_MEM, sz); 9445 bam_exit(1); 9446 } 9447 return (ptr); 9448 } 9449 9450 char * 9451 s_strdup(char *str) 9452 { 9453 char *ptr; 9454 9455 if (str == NULL) 9456 return (NULL); 9457 9458 ptr = strdup(str); 9459 if (ptr == NULL) { 9460 bam_error(NO_MEM, strlen(str) + 1); 9461 bam_exit(1); 9462 } 9463 return (ptr); 9464 } 9465 9466 /* 9467 * Returns 1 if amd64 (or sparc, for syncing x86 diskless clients) 9468 * Returns 0 otherwise 9469 */ 9470 static int 9471 is_amd64(void) 9472 { 9473 static int amd64 = -1; 9474 char isabuf[257]; /* from sysinfo(2) manpage */ 9475 9476 if (amd64 != -1) 9477 return (amd64); 9478 9479 if (bam_alt_platform) { 9480 if (strcmp(bam_platform, "i86pc") == 0) { 9481 amd64 = 1; /* diskless server */ 9482 } 9483 } else { 9484 if (sysinfo(SI_ISALIST, isabuf, sizeof (isabuf)) > 0 && 9485 strncmp(isabuf, "amd64 ", strlen("amd64 ")) == 0) { 9486 amd64 = 1; 9487 } else if (strstr(isabuf, "i386") == NULL) { 9488 amd64 = 1; /* diskless server */ 9489 } 9490 } 9491 if (amd64 == -1) 9492 amd64 = 0; 9493 9494 return (amd64); 9495 } 9496 9497 static char * 9498 get_machine(void) 9499 { 9500 static int cached = -1; 9501 static char mbuf[257]; /* from sysinfo(2) manpage */ 9502 9503 if (cached == 0) 9504 return (mbuf); 9505 9506 if (bam_alt_platform) { 9507 return (bam_platform); 9508 } else { 9509 if (sysinfo(SI_MACHINE, mbuf, sizeof (mbuf)) > 0) { 9510 cached = 1; 9511 } 9512 } 9513 if (cached == -1) { 9514 mbuf[0] = '\0'; 9515 cached = 0; 9516 } 9517 9518 return (mbuf); 9519 } 9520 9521 int 9522 is_sparc(void) 9523 { 9524 static int issparc = -1; 9525 char mbuf[257]; /* from sysinfo(2) manpage */ 9526 9527 if (issparc != -1) 9528 return (issparc); 9529 9530 if (bam_alt_platform) { 9531 if (strncmp(bam_platform, "sun4", 4) == 0) { 9532 issparc = 1; 9533 } 9534 } else { 9535 if (sysinfo(SI_ARCHITECTURE, mbuf, sizeof (mbuf)) > 0 && 9536 strcmp(mbuf, "sparc") == 0) { 9537 issparc = 1; 9538 } 9539 } 9540 if (issparc == -1) 9541 issparc = 0; 9542 9543 return (issparc); 9544 } 9545 9546 static void 9547 append_to_flist(filelist_t *flistp, char *s) 9548 { 9549 line_t *lp; 9550 9551 lp = s_calloc(1, sizeof (line_t)); 9552 lp->line = s_strdup(s); 9553 if (flistp->head == NULL) 9554 flistp->head = lp; 9555 else 9556 flistp->tail->next = lp; 9557 flistp->tail = lp; 9558 } 9559 9560 #if !defined(_OPB) 9561 9562 UCODE_VENDORS; 9563 9564 /*ARGSUSED*/ 9565 static void 9566 ucode_install(char *root) 9567 { 9568 int i; 9569 9570 for (i = 0; ucode_vendors[i].filestr != NULL; i++) { 9571 int cmd_len = PATH_MAX + 256; 9572 char cmd[PATH_MAX + 256]; 9573 char file[PATH_MAX]; 9574 char timestamp[PATH_MAX]; 9575 struct stat fstatus, tstatus; 9576 struct utimbuf u_times; 9577 9578 (void) snprintf(file, PATH_MAX, "%s/%s/%s-ucode.%s", 9579 bam_root, UCODE_INSTALL_PATH, ucode_vendors[i].filestr, 9580 ucode_vendors[i].extstr); 9581 9582 if (stat(file, &fstatus) != 0 || !(S_ISREG(fstatus.st_mode))) 9583 continue; 9584 9585 (void) snprintf(timestamp, PATH_MAX, "%s.ts", file); 9586 9587 if (stat(timestamp, &tstatus) == 0 && 9588 fstatus.st_mtime <= tstatus.st_mtime) 9589 continue; 9590 9591 (void) snprintf(cmd, cmd_len, "/usr/sbin/ucodeadm -i -R " 9592 "%s/%s/%s %s > /dev/null 2>&1", bam_root, 9593 UCODE_INSTALL_PATH, ucode_vendors[i].vendorstr, file); 9594 if (system(cmd) != 0) 9595 return; 9596 9597 if (creat(timestamp, S_IRUSR | S_IWUSR) == -1) 9598 return; 9599 9600 u_times.actime = fstatus.st_atime; 9601 u_times.modtime = fstatus.st_mtime; 9602 (void) utime(timestamp, &u_times); 9603 } 9604 } 9605 #endif 9606