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 static int is_libbe_ent = 0; 4210 4211 line_t *lp; 4212 char *cmd, *sep, *arg; 4213 char save, *cp, *line; 4214 menu_flag_t flag = BAM_INVALID; 4215 const char *fcn = "line_parser()"; 4216 4217 if (str == NULL) { 4218 return; 4219 } 4220 4221 /* 4222 * First save a copy of the entire line. 4223 * We use this later to set the line field. 4224 */ 4225 line = s_strdup(str); 4226 4227 /* Eat up leading whitespace */ 4228 while (*str == ' ' || *str == '\t') 4229 str++; 4230 4231 if (*str == '#') { /* comment */ 4232 cmd = s_strdup("#"); 4233 sep = NULL; 4234 arg = s_strdup(str + 1); 4235 flag = BAM_COMMENT; 4236 if (strstr(arg, BAM_LU_HDR) != NULL) { 4237 in_liveupgrade = 1; 4238 } else if (strstr(arg, BAM_LU_FTR) != NULL) { 4239 in_liveupgrade = 0; 4240 } else if (strstr(arg, BAM_LIBBE_FTR) != NULL) { 4241 is_libbe_ent = 1; 4242 } 4243 } else if (*str == '\0') { /* blank line */ 4244 cmd = sep = arg = NULL; 4245 flag = BAM_EMPTY; 4246 } else { 4247 /* 4248 * '=' is not a documented separator in grub syntax. 4249 * However various development bits use '=' as a 4250 * separator. In addition, external users also 4251 * use = as a separator. So we will allow that usage. 4252 */ 4253 cp = str; 4254 while (*str != ' ' && *str != '\t' && *str != '=') { 4255 if (*str == '\0') { 4256 cmd = s_strdup(cp); 4257 sep = arg = NULL; 4258 break; 4259 } 4260 str++; 4261 } 4262 4263 if (*str != '\0') { 4264 save = *str; 4265 *str = '\0'; 4266 cmd = s_strdup(cp); 4267 *str = save; 4268 4269 str++; 4270 save = *str; 4271 *str = '\0'; 4272 sep = s_strdup(str - 1); 4273 *str = save; 4274 4275 while (*str == ' ' || *str == '\t') 4276 str++; 4277 if (*str == '\0') 4278 arg = NULL; 4279 else 4280 arg = s_strdup(str); 4281 } 4282 } 4283 4284 lp = s_calloc(1, sizeof (line_t)); 4285 4286 lp->cmd = cmd; 4287 lp->sep = sep; 4288 lp->arg = arg; 4289 lp->line = line; 4290 lp->lineNum = ++(*lineNum); 4291 if (cmd && strcmp(cmd, menu_cmds[TITLE_CMD]) == 0) { 4292 lp->entryNum = ++(*entryNum); 4293 lp->flags = BAM_TITLE; 4294 if (prev && prev->flags == BAM_COMMENT && 4295 prev->arg && strcmp(prev->arg, BAM_BOOTADM_HDR) == 0) { 4296 prev->entryNum = lp->entryNum; 4297 curr_ent = boot_entry_new(mp, prev, lp); 4298 curr_ent->flags |= BAM_ENTRY_BOOTADM; 4299 BAM_DPRINTF((D_IS_BOOTADM_ENTRY, fcn, arg)); 4300 } else { 4301 curr_ent = boot_entry_new(mp, lp, lp); 4302 if (in_liveupgrade) { 4303 curr_ent->flags |= BAM_ENTRY_LU; 4304 BAM_DPRINTF((D_IS_LU_ENTRY, fcn, arg)); 4305 } 4306 } 4307 curr_ent->entryNum = *entryNum; 4308 } else if (flag != BAM_INVALID) { 4309 /* 4310 * For header comments, the entry# is "fixed up" 4311 * by the subsequent title 4312 */ 4313 lp->entryNum = *entryNum; 4314 lp->flags = flag; 4315 } else { 4316 lp->entryNum = *entryNum; 4317 4318 if (*entryNum == ENTRY_INIT) { 4319 lp->flags = BAM_GLOBAL; 4320 } else { 4321 lp->flags = BAM_ENTRY; 4322 4323 if (cmd && arg) { 4324 if (strcmp(cmd, menu_cmds[ROOT_CMD]) == 0) { 4325 BAM_DPRINTF((D_IS_ROOT_CMD, fcn, arg)); 4326 curr_ent->flags |= BAM_ENTRY_ROOT; 4327 } else if (strcmp(cmd, menu_cmds[FINDROOT_CMD]) 4328 == 0) { 4329 BAM_DPRINTF((D_IS_FINDROOT_CMD, fcn, 4330 arg)); 4331 curr_ent->flags |= BAM_ENTRY_FINDROOT; 4332 } else if (strcmp(cmd, 4333 menu_cmds[CHAINLOADER_CMD]) == 0) { 4334 BAM_DPRINTF((D_IS_CHAINLOADER_CMD, fcn, 4335 arg)); 4336 curr_ent->flags |= 4337 BAM_ENTRY_CHAINLOADER; 4338 } else if (kernel_parser(curr_ent, cmd, arg, 4339 lp->lineNum) != BAM_SUCCESS) { 4340 (void) module_parser(curr_ent, cmd, 4341 arg, lp->lineNum); 4342 } 4343 } 4344 } 4345 } 4346 4347 /* record default, old default, and entry line ranges */ 4348 if (lp->flags == BAM_GLOBAL && 4349 strcmp(lp->cmd, menu_cmds[DEFAULT_CMD]) == 0) { 4350 mp->curdefault = lp; 4351 } else if (lp->flags == BAM_COMMENT && 4352 strncmp(lp->arg, BAM_OLDDEF, strlen(BAM_OLDDEF)) == 0) { 4353 mp->olddefault = lp; 4354 } else if (lp->flags == BAM_COMMENT && 4355 strncmp(lp->arg, BAM_OLD_RC_DEF, strlen(BAM_OLD_RC_DEF)) == 0) { 4356 mp->old_rc_default = lp; 4357 } else if (lp->flags == BAM_ENTRY || 4358 (lp->flags == BAM_COMMENT && 4359 ((strcmp(lp->arg, BAM_BOOTADM_FTR) == 0) || is_libbe_ent))) { 4360 if (is_libbe_ent) { 4361 curr_ent->flags |= BAM_ENTRY_LIBBE; 4362 is_libbe_ent = 0; 4363 } 4364 4365 boot_entry_addline(curr_ent, lp); 4366 } 4367 append_line(mp, lp); 4368 4369 prev = lp; 4370 } 4371 4372 void 4373 update_numbering(menu_t *mp) 4374 { 4375 int lineNum; 4376 int entryNum; 4377 int old_default_value; 4378 line_t *lp, *prev, *default_lp, *default_entry; 4379 char buf[PATH_MAX]; 4380 4381 if (mp->start == NULL) { 4382 return; 4383 } 4384 4385 lineNum = LINE_INIT; 4386 entryNum = ENTRY_INIT; 4387 old_default_value = ENTRY_INIT; 4388 lp = default_lp = default_entry = NULL; 4389 4390 prev = NULL; 4391 for (lp = mp->start; lp; prev = lp, lp = lp->next) { 4392 lp->lineNum = ++lineNum; 4393 4394 /* 4395 * Get the value of the default command 4396 */ 4397 if (lp->entryNum == ENTRY_INIT && lp->cmd && 4398 strcmp(lp->cmd, menu_cmds[DEFAULT_CMD]) == 0 && 4399 lp->arg) { 4400 old_default_value = atoi(lp->arg); 4401 default_lp = lp; 4402 } 4403 4404 /* 4405 * If not a booting entry, nothing else to fix for this 4406 * entry 4407 */ 4408 if (lp->entryNum == ENTRY_INIT) 4409 continue; 4410 4411 /* 4412 * Record the position of the default entry. 4413 * The following works because global 4414 * commands like default and timeout should precede 4415 * actual boot entries, so old_default_value 4416 * is already known (or default cmd is missing). 4417 */ 4418 if (default_entry == NULL && 4419 old_default_value != ENTRY_INIT && 4420 lp->entryNum == old_default_value) { 4421 default_entry = lp; 4422 } 4423 4424 /* 4425 * Now fixup the entry number 4426 */ 4427 if (lp->cmd && strcmp(lp->cmd, menu_cmds[TITLE_CMD]) == 0) { 4428 lp->entryNum = ++entryNum; 4429 /* fixup the bootadm header */ 4430 if (prev && prev->flags == BAM_COMMENT && 4431 prev->arg && 4432 strcmp(prev->arg, BAM_BOOTADM_HDR) == 0) { 4433 prev->entryNum = lp->entryNum; 4434 } 4435 } else { 4436 lp->entryNum = entryNum; 4437 } 4438 } 4439 4440 /* 4441 * No default command in menu, simply return 4442 */ 4443 if (default_lp == NULL) { 4444 return; 4445 } 4446 4447 free(default_lp->arg); 4448 free(default_lp->line); 4449 4450 if (default_entry == NULL) { 4451 default_lp->arg = s_strdup("0"); 4452 } else { 4453 (void) snprintf(buf, sizeof (buf), "%d", 4454 default_entry->entryNum); 4455 default_lp->arg = s_strdup(buf); 4456 } 4457 4458 /* 4459 * The following is required since only the line field gets 4460 * written back to menu.lst 4461 */ 4462 (void) snprintf(buf, sizeof (buf), "%s%s%s", 4463 menu_cmds[DEFAULT_CMD], menu_cmds[SEP_CMD], default_lp->arg); 4464 default_lp->line = s_strdup(buf); 4465 } 4466 4467 4468 static menu_t * 4469 menu_read(char *menu_path) 4470 { 4471 FILE *fp; 4472 char buf[BAM_MAXLINE], *cp; 4473 menu_t *mp; 4474 int line, entry, len, n; 4475 4476 mp = s_calloc(1, sizeof (menu_t)); 4477 4478 fp = fopen(menu_path, "r"); 4479 if (fp == NULL) { /* Let the caller handle this error */ 4480 free(mp); 4481 return (NULL); 4482 } 4483 4484 /* Note: GRUB boot entry number starts with 0 */ 4485 line = LINE_INIT; 4486 entry = ENTRY_INIT; 4487 cp = buf; 4488 len = sizeof (buf); 4489 while (s_fgets(cp, len, fp) != NULL) { 4490 n = strlen(cp); 4491 if (cp[n - 1] == '\\') { 4492 len -= n - 1; 4493 assert(len >= 2); 4494 cp += n - 1; 4495 continue; 4496 } 4497 line_parser(mp, buf, &line, &entry); 4498 cp = buf; 4499 len = sizeof (buf); 4500 } 4501 4502 if (fclose(fp) == EOF) { 4503 bam_error(CLOSE_FAIL, menu_path, strerror(errno)); 4504 } 4505 4506 return (mp); 4507 } 4508 4509 static error_t 4510 selector(menu_t *mp, char *opt, int *entry, char **title) 4511 { 4512 char *eq; 4513 char *opt_dup; 4514 int entryNum; 4515 4516 assert(mp); 4517 assert(mp->start); 4518 assert(opt); 4519 4520 opt_dup = s_strdup(opt); 4521 4522 if (entry) 4523 *entry = ENTRY_INIT; 4524 if (title) 4525 *title = NULL; 4526 4527 eq = strchr(opt_dup, '='); 4528 if (eq == NULL) { 4529 bam_error(INVALID_OPT, opt); 4530 free(opt_dup); 4531 return (BAM_ERROR); 4532 } 4533 4534 *eq = '\0'; 4535 if (entry && strcmp(opt_dup, OPT_ENTRY_NUM) == 0) { 4536 assert(mp->end); 4537 entryNum = s_strtol(eq + 1); 4538 if (entryNum < 0 || entryNum > mp->end->entryNum) { 4539 bam_error(INVALID_ENTRY, eq + 1); 4540 free(opt_dup); 4541 return (BAM_ERROR); 4542 } 4543 *entry = entryNum; 4544 } else if (title && strcmp(opt_dup, menu_cmds[TITLE_CMD]) == 0) { 4545 *title = opt + (eq - opt_dup) + 1; 4546 } else { 4547 bam_error(INVALID_OPT, opt); 4548 free(opt_dup); 4549 return (BAM_ERROR); 4550 } 4551 4552 free(opt_dup); 4553 return (BAM_SUCCESS); 4554 } 4555 4556 /* 4557 * If invoked with no titles/entries (opt == NULL) 4558 * only title lines in file are printed. 4559 * 4560 * If invoked with a title or entry #, all 4561 * lines in *every* matching entry are listed 4562 */ 4563 static error_t 4564 list_entry(menu_t *mp, char *menu_path, char *opt) 4565 { 4566 line_t *lp; 4567 int entry = ENTRY_INIT; 4568 int found; 4569 char *title = NULL; 4570 4571 assert(mp); 4572 assert(menu_path); 4573 4574 /* opt is optional */ 4575 BAM_DPRINTF((D_FUNC_ENTRY2, "list_entry", menu_path, 4576 opt ? opt : "<NULL>")); 4577 4578 if (mp->start == NULL) { 4579 bam_error(NO_MENU, menu_path); 4580 return (BAM_ERROR); 4581 } 4582 4583 if (opt != NULL) { 4584 if (selector(mp, opt, &entry, &title) != BAM_SUCCESS) { 4585 return (BAM_ERROR); 4586 } 4587 assert((entry != ENTRY_INIT) ^ (title != NULL)); 4588 } else { 4589 (void) read_globals(mp, menu_path, menu_cmds[DEFAULT_CMD], 0); 4590 (void) read_globals(mp, menu_path, menu_cmds[TIMEOUT_CMD], 0); 4591 } 4592 4593 found = 0; 4594 for (lp = mp->start; lp; lp = lp->next) { 4595 if (lp->flags == BAM_COMMENT || lp->flags == BAM_EMPTY) 4596 continue; 4597 if (opt == NULL && lp->flags == BAM_TITLE) { 4598 bam_print(PRINT_TITLE, lp->entryNum, 4599 lp->arg); 4600 found = 1; 4601 continue; 4602 } 4603 if (entry != ENTRY_INIT && lp->entryNum == entry) { 4604 bam_print(PRINT, lp->line); 4605 found = 1; 4606 continue; 4607 } 4608 4609 /* 4610 * We set the entry value here so that all lines 4611 * in entry get printed. If we subsequently match 4612 * title in other entries, all lines in those 4613 * entries get printed as well. 4614 */ 4615 if (title && lp->flags == BAM_TITLE && lp->arg && 4616 strncmp(title, lp->arg, strlen(title)) == 0) { 4617 bam_print(PRINT, lp->line); 4618 entry = lp->entryNum; 4619 found = 1; 4620 continue; 4621 } 4622 } 4623 4624 if (!found) { 4625 bam_error(NO_MATCH_ENTRY); 4626 return (BAM_ERROR); 4627 } 4628 4629 return (BAM_SUCCESS); 4630 } 4631 4632 int 4633 add_boot_entry(menu_t *mp, 4634 char *title, 4635 char *findroot, 4636 char *kernel, 4637 char *mod_kernel, 4638 char *module, 4639 char *bootfs) 4640 { 4641 int lineNum; 4642 int entryNum; 4643 char linebuf[BAM_MAXLINE]; 4644 menu_cmd_t k_cmd; 4645 menu_cmd_t m_cmd; 4646 const char *fcn = "add_boot_entry()"; 4647 4648 assert(mp); 4649 4650 INJECT_ERROR1("ADD_BOOT_ENTRY_FINDROOT_NULL", findroot = NULL); 4651 if (findroot == NULL) { 4652 bam_error(NULL_FINDROOT); 4653 return (BAM_ERROR); 4654 } 4655 4656 if (title == NULL) { 4657 title = "Solaris"; /* default to Solaris */ 4658 } 4659 if (kernel == NULL) { 4660 bam_error(SUBOPT_MISS, menu_cmds[KERNEL_CMD]); 4661 return (BAM_ERROR); 4662 } 4663 if (module == NULL) { 4664 if (bam_direct != BAM_DIRECT_DBOOT) { 4665 bam_error(SUBOPT_MISS, menu_cmds[MODULE_CMD]); 4666 return (BAM_ERROR); 4667 } 4668 4669 /* Figure the commands out from the kernel line */ 4670 if (strstr(kernel, "$ISADIR") != NULL) { 4671 module = DIRECT_BOOT_ARCHIVE; 4672 k_cmd = KERNEL_DOLLAR_CMD; 4673 m_cmd = MODULE_DOLLAR_CMD; 4674 } else if (strstr(kernel, "amd64") != NULL) { 4675 module = DIRECT_BOOT_ARCHIVE_64; 4676 k_cmd = KERNEL_CMD; 4677 m_cmd = MODULE_CMD; 4678 } else { 4679 module = DIRECT_BOOT_ARCHIVE_32; 4680 k_cmd = KERNEL_CMD; 4681 m_cmd = MODULE_CMD; 4682 } 4683 } else if ((bam_direct == BAM_DIRECT_DBOOT) && 4684 (strstr(kernel, "$ISADIR") != NULL)) { 4685 /* 4686 * If it's a non-failsafe dboot kernel, use the "kernel$" 4687 * command. Otherwise, use "kernel". 4688 */ 4689 k_cmd = KERNEL_DOLLAR_CMD; 4690 m_cmd = MODULE_DOLLAR_CMD; 4691 } else { 4692 k_cmd = KERNEL_CMD; 4693 m_cmd = MODULE_CMD; 4694 } 4695 4696 if (mp->start) { 4697 lineNum = mp->end->lineNum; 4698 entryNum = mp->end->entryNum; 4699 } else { 4700 lineNum = LINE_INIT; 4701 entryNum = ENTRY_INIT; 4702 } 4703 4704 /* 4705 * No separator for comment (HDR/FTR) commands 4706 * The syntax for comments is #<comment> 4707 */ 4708 (void) snprintf(linebuf, sizeof (linebuf), "%s%s", 4709 menu_cmds[COMMENT_CMD], BAM_BOOTADM_HDR); 4710 line_parser(mp, linebuf, &lineNum, &entryNum); 4711 4712 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 4713 menu_cmds[TITLE_CMD], menu_cmds[SEP_CMD], title); 4714 line_parser(mp, linebuf, &lineNum, &entryNum); 4715 4716 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 4717 menu_cmds[FINDROOT_CMD], menu_cmds[SEP_CMD], findroot); 4718 line_parser(mp, linebuf, &lineNum, &entryNum); 4719 BAM_DPRINTF((D_ADD_FINDROOT_NUM, fcn, lineNum, entryNum)); 4720 4721 if (bootfs != NULL) { 4722 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 4723 menu_cmds[BOOTFS_CMD], menu_cmds[SEP_CMD], bootfs); 4724 line_parser(mp, linebuf, &lineNum, &entryNum); 4725 } 4726 4727 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 4728 menu_cmds[k_cmd], menu_cmds[SEP_CMD], kernel); 4729 line_parser(mp, linebuf, &lineNum, &entryNum); 4730 4731 if (mod_kernel != NULL) { 4732 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 4733 menu_cmds[m_cmd], menu_cmds[SEP_CMD], mod_kernel); 4734 line_parser(mp, linebuf, &lineNum, &entryNum); 4735 } 4736 4737 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 4738 menu_cmds[m_cmd], menu_cmds[SEP_CMD], module); 4739 line_parser(mp, linebuf, &lineNum, &entryNum); 4740 4741 (void) snprintf(linebuf, sizeof (linebuf), "%s%s", 4742 menu_cmds[COMMENT_CMD], BAM_BOOTADM_FTR); 4743 line_parser(mp, linebuf, &lineNum, &entryNum); 4744 4745 return (entryNum); 4746 } 4747 4748 error_t 4749 delete_boot_entry(menu_t *mp, int entryNum, int quiet) 4750 { 4751 line_t *lp; 4752 line_t *freed; 4753 entry_t *ent; 4754 entry_t *tmp; 4755 int deleted = 0; 4756 const char *fcn = "delete_boot_entry()"; 4757 4758 assert(entryNum != ENTRY_INIT); 4759 4760 tmp = NULL; 4761 4762 ent = mp->entries; 4763 while (ent) { 4764 lp = ent->start; 4765 4766 /* 4767 * Check entry number and make sure it's a modifiable entry. 4768 * 4769 * Guidelines: 4770 * + We can modify a bootadm-created entry 4771 * + We can modify a libbe-created entry 4772 */ 4773 if ((lp->flags != BAM_COMMENT && 4774 (((ent->flags & BAM_ENTRY_LIBBE) == 0) && 4775 strcmp(lp->arg, BAM_BOOTADM_HDR) != 0)) || 4776 (entryNum != ALL_ENTRIES && lp->entryNum != entryNum)) { 4777 ent = ent->next; 4778 continue; 4779 } 4780 4781 /* free the entry content */ 4782 do { 4783 freed = lp; 4784 lp = lp->next; /* prev stays the same */ 4785 BAM_DPRINTF((D_FREEING_LINE, fcn, freed->lineNum)); 4786 unlink_line(mp, freed); 4787 line_free(freed); 4788 } while (freed != ent->end); 4789 4790 /* free the entry_t structure */ 4791 assert(tmp == NULL); 4792 tmp = ent; 4793 ent = ent->next; 4794 if (tmp->prev) 4795 tmp->prev->next = ent; 4796 else 4797 mp->entries = ent; 4798 if (ent) 4799 ent->prev = tmp->prev; 4800 BAM_DPRINTF((D_FREEING_ENTRY, fcn, tmp->entryNum)); 4801 free(tmp); 4802 tmp = NULL; 4803 deleted = 1; 4804 } 4805 4806 assert(tmp == NULL); 4807 4808 if (!deleted && entryNum != ALL_ENTRIES) { 4809 if (quiet == DBE_PRINTERR) 4810 bam_error(NO_BOOTADM_MATCH); 4811 return (BAM_ERROR); 4812 } 4813 4814 /* 4815 * Now that we have deleted an entry, update 4816 * the entry numbering and the default cmd. 4817 */ 4818 update_numbering(mp); 4819 4820 return (BAM_SUCCESS); 4821 } 4822 4823 static error_t 4824 delete_all_entries(menu_t *mp, char *dummy, char *opt) 4825 { 4826 assert(mp); 4827 assert(dummy == NULL); 4828 assert(opt == NULL); 4829 4830 BAM_DPRINTF((D_FUNC_ENTRY0, "delete_all_entries")); 4831 4832 if (mp->start == NULL) { 4833 bam_print(EMPTY_MENU); 4834 return (BAM_SUCCESS); 4835 } 4836 4837 if (delete_boot_entry(mp, ALL_ENTRIES, DBE_PRINTERR) != BAM_SUCCESS) { 4838 return (BAM_ERROR); 4839 } 4840 4841 return (BAM_WRITE); 4842 } 4843 4844 static FILE * 4845 create_diskmap(char *osroot) 4846 { 4847 FILE *fp; 4848 char cmd[PATH_MAX + 16]; 4849 char path[PATH_MAX]; 4850 const char *fcn = "create_diskmap()"; 4851 4852 /* make sure we have a map file */ 4853 fp = fopen(GRUBDISK_MAP, "r"); 4854 if (fp == NULL) { 4855 int ret; 4856 4857 ret = snprintf(path, sizeof (path), "%s/%s", osroot, 4858 CREATE_DISKMAP); 4859 if (ret >= sizeof (path)) { 4860 bam_error(PATH_TOO_LONG, osroot); 4861 return (NULL); 4862 } 4863 if (is_safe_exec(path) == BAM_ERROR) 4864 return (NULL); 4865 4866 (void) snprintf(cmd, sizeof (cmd), 4867 "%s/%s > /dev/null", osroot, CREATE_DISKMAP); 4868 if (exec_cmd(cmd, NULL) != 0) 4869 return (NULL); 4870 fp = fopen(GRUBDISK_MAP, "r"); 4871 INJECT_ERROR1("DISKMAP_CREATE_FAIL", fp = NULL); 4872 if (fp) { 4873 BAM_DPRINTF((D_CREATED_DISKMAP, fcn, GRUBDISK_MAP)); 4874 } else { 4875 BAM_DPRINTF((D_CREATE_DISKMAP_FAIL, fcn, GRUBDISK_MAP)); 4876 } 4877 } 4878 return (fp); 4879 } 4880 4881 #define SECTOR_SIZE 512 4882 4883 static int 4884 get_partition(char *device) 4885 { 4886 int i, fd, is_pcfs, partno = -1; 4887 struct mboot *mboot; 4888 char boot_sect[SECTOR_SIZE]; 4889 char *wholedisk, *slice; 4890 #ifdef i386 4891 ext_part_t *epp; 4892 uint32_t secnum, numsec; 4893 int rval, pno, ext_partno = -1; 4894 #endif 4895 4896 /* form whole disk (p0) */ 4897 slice = device + strlen(device) - 2; 4898 is_pcfs = (*slice != 's'); 4899 if (!is_pcfs) 4900 *slice = '\0'; 4901 wholedisk = s_calloc(1, strlen(device) + 3); 4902 (void) snprintf(wholedisk, strlen(device) + 3, "%sp0", device); 4903 if (!is_pcfs) 4904 *slice = 's'; 4905 4906 /* read boot sector */ 4907 fd = open(wholedisk, O_RDONLY); 4908 if (fd == -1 || read(fd, boot_sect, SECTOR_SIZE) != SECTOR_SIZE) { 4909 return (partno); 4910 } 4911 (void) close(fd); 4912 4913 #ifdef i386 4914 /* Read/Initialize extended partition information */ 4915 if ((rval = libfdisk_init(&epp, wholedisk, NULL, FDISK_READ_DISK)) 4916 != FDISK_SUCCESS) { 4917 switch (rval) { 4918 /* 4919 * FDISK_EBADLOGDRIVE and FDISK_ENOLOGDRIVE can 4920 * be considered as soft errors and hence 4921 * we do not return 4922 */ 4923 case FDISK_EBADLOGDRIVE: 4924 break; 4925 case FDISK_ENOLOGDRIVE: 4926 break; 4927 case FDISK_EBADMAGIC: 4928 /*FALLTHROUGH*/ 4929 default: 4930 free(wholedisk); 4931 libfdisk_fini(&epp); 4932 return (partno); 4933 break; 4934 } 4935 } 4936 #endif 4937 free(wholedisk); 4938 4939 /* parse fdisk table */ 4940 mboot = (struct mboot *)((void *)boot_sect); 4941 for (i = 0; i < FD_NUMPART; i++) { 4942 struct ipart *part = 4943 (struct ipart *)(uintptr_t)mboot->parts + i; 4944 if (is_pcfs) { /* looking for solaris boot part */ 4945 if (part->systid == 0xbe) { 4946 partno = i; 4947 break; 4948 } 4949 } else { /* look for solaris partition, old and new */ 4950 #ifdef i386 4951 if ((part->systid == SUNIXOS && 4952 (fdisk_is_linux_swap(epp, part->relsect, 4953 NULL) != 0)) || part->systid == SUNIXOS2) { 4954 #else 4955 if (part->systid == SUNIXOS || 4956 part->systid == SUNIXOS2) { 4957 #endif 4958 partno = i; 4959 break; 4960 } 4961 4962 #ifdef i386 4963 if (fdisk_is_dos_extended(part->systid)) 4964 ext_partno = i; 4965 #endif 4966 } 4967 } 4968 #ifdef i386 4969 /* If no primary solaris partition, check extended partition */ 4970 if ((partno == -1) && (ext_partno != -1)) { 4971 rval = fdisk_get_solaris_part(epp, &pno, &secnum, &numsec); 4972 if (rval == FDISK_SUCCESS) { 4973 partno = pno - 1; 4974 } 4975 } 4976 libfdisk_fini(&epp); 4977 #endif 4978 return (partno); 4979 } 4980 4981 char * 4982 get_grubroot(char *osroot, char *osdev, char *menu_root) 4983 { 4984 char *grubroot; /* (hd#,#,#) */ 4985 char *slice; 4986 char *grubhd; 4987 int fdiskpart; 4988 int found = 0; 4989 char *devname; 4990 char *ctdname = strstr(osdev, "dsk/"); 4991 char linebuf[PATH_MAX]; 4992 FILE *fp; 4993 4994 INJECT_ERROR1("GRUBROOT_INVALID_OSDEV", ctdname = NULL); 4995 if (ctdname == NULL) { 4996 bam_error(INVALID_DEV_DSK, osdev); 4997 return (NULL); 4998 } 4999 5000 if (menu_root && !menu_on_bootdisk(osroot, menu_root)) { 5001 /* menu bears no resemblance to our reality */ 5002 bam_error(CANNOT_GRUBROOT_BOOTDISK, osdev); 5003 return (NULL); 5004 } 5005 5006 ctdname += strlen("dsk/"); 5007 slice = strrchr(ctdname, 's'); 5008 if (slice) 5009 *slice = '\0'; 5010 5011 fp = create_diskmap(osroot); 5012 if (fp == NULL) { 5013 bam_error(DISKMAP_FAIL, osroot); 5014 return (NULL); 5015 } 5016 5017 rewind(fp); 5018 while (s_fgets(linebuf, sizeof (linebuf), fp) != NULL) { 5019 grubhd = strtok(linebuf, " \t\n"); 5020 if (grubhd) 5021 devname = strtok(NULL, " \t\n"); 5022 else 5023 devname = NULL; 5024 if (devname && strcmp(devname, ctdname) == 0) { 5025 found = 1; 5026 break; 5027 } 5028 } 5029 5030 if (slice) 5031 *slice = 's'; 5032 5033 (void) fclose(fp); 5034 fp = NULL; 5035 5036 INJECT_ERROR1("GRUBROOT_BIOSDEV_FAIL", found = 0); 5037 if (found == 0) { 5038 bam_error(BIOSDEV_SKIP, osdev); 5039 return (NULL); 5040 } 5041 5042 fdiskpart = get_partition(osdev); 5043 INJECT_ERROR1("GRUBROOT_FDISK_FAIL", fdiskpart = -1); 5044 if (fdiskpart == -1) { 5045 bam_error(FDISKPART_FAIL, osdev); 5046 return (NULL); 5047 } 5048 5049 grubroot = s_calloc(1, 10); 5050 if (slice) { 5051 (void) snprintf(grubroot, 10, "(hd%s,%d,%c)", 5052 grubhd, fdiskpart, slice[1] + 'a' - '0'); 5053 } else 5054 (void) snprintf(grubroot, 10, "(hd%s,%d)", 5055 grubhd, fdiskpart); 5056 5057 assert(fp == NULL); 5058 assert(strncmp(grubroot, "(hd", strlen("(hd")) == 0); 5059 return (grubroot); 5060 } 5061 5062 static char * 5063 find_primary_common(char *mntpt, char *fstype) 5064 { 5065 char signdir[PATH_MAX]; 5066 char tmpsign[MAXNAMELEN + 1]; 5067 char *lu; 5068 char *ufs; 5069 char *zfs; 5070 DIR *dirp = NULL; 5071 struct dirent *entp; 5072 struct stat sb; 5073 const char *fcn = "find_primary_common()"; 5074 5075 (void) snprintf(signdir, sizeof (signdir), "%s/%s", 5076 mntpt, GRUBSIGN_DIR); 5077 5078 if (stat(signdir, &sb) == -1) { 5079 BAM_DPRINTF((D_NO_SIGNDIR, fcn, signdir)); 5080 return (NULL); 5081 } 5082 5083 dirp = opendir(signdir); 5084 INJECT_ERROR1("SIGNDIR_OPENDIR_FAIL", dirp = NULL); 5085 if (dirp == NULL) { 5086 bam_error(OPENDIR_FAILED, signdir, strerror(errno)); 5087 return (NULL); 5088 } 5089 5090 ufs = zfs = lu = NULL; 5091 5092 while (entp = readdir(dirp)) { 5093 if (strcmp(entp->d_name, ".") == 0 || 5094 strcmp(entp->d_name, "..") == 0) 5095 continue; 5096 5097 (void) snprintf(tmpsign, sizeof (tmpsign), "%s", entp->d_name); 5098 5099 if (lu == NULL && 5100 strncmp(tmpsign, GRUBSIGN_LU_PREFIX, 5101 strlen(GRUBSIGN_LU_PREFIX)) == 0) { 5102 lu = s_strdup(tmpsign); 5103 } 5104 5105 if (ufs == NULL && 5106 strncmp(tmpsign, GRUBSIGN_UFS_PREFIX, 5107 strlen(GRUBSIGN_UFS_PREFIX)) == 0) { 5108 ufs = s_strdup(tmpsign); 5109 } 5110 5111 if (zfs == NULL && 5112 strncmp(tmpsign, GRUBSIGN_ZFS_PREFIX, 5113 strlen(GRUBSIGN_ZFS_PREFIX)) == 0) { 5114 zfs = s_strdup(tmpsign); 5115 } 5116 } 5117 5118 BAM_DPRINTF((D_EXIST_PRIMARY_SIGNS, fcn, 5119 zfs ? zfs : "NULL", 5120 ufs ? ufs : "NULL", 5121 lu ? lu : "NULL")); 5122 5123 if (dirp) { 5124 (void) closedir(dirp); 5125 dirp = NULL; 5126 } 5127 5128 if (strcmp(fstype, "ufs") == 0 && zfs) { 5129 bam_error(SIGN_FSTYPE_MISMATCH, zfs, "ufs"); 5130 free(zfs); 5131 zfs = NULL; 5132 } else if (strcmp(fstype, "zfs") == 0 && ufs) { 5133 bam_error(SIGN_FSTYPE_MISMATCH, ufs, "zfs"); 5134 free(ufs); 5135 ufs = NULL; 5136 } 5137 5138 assert(dirp == NULL); 5139 5140 /* For now, we let Live Upgrade take care of its signature itself */ 5141 if (lu) { 5142 BAM_DPRINTF((D_FREEING_LU_SIGNS, fcn, lu)); 5143 free(lu); 5144 lu = NULL; 5145 } 5146 5147 return (zfs ? zfs : ufs); 5148 } 5149 5150 static char * 5151 find_backup_common(char *mntpt, char *fstype) 5152 { 5153 FILE *bfp = NULL; 5154 char tmpsign[MAXNAMELEN + 1]; 5155 char backup[PATH_MAX]; 5156 char *ufs; 5157 char *zfs; 5158 char *lu; 5159 int error; 5160 const char *fcn = "find_backup_common()"; 5161 5162 /* 5163 * We didn't find it in the primary directory. 5164 * Look at the backup 5165 */ 5166 (void) snprintf(backup, sizeof (backup), "%s%s", 5167 mntpt, GRUBSIGN_BACKUP); 5168 5169 bfp = fopen(backup, "r"); 5170 if (bfp == NULL) { 5171 error = errno; 5172 if (bam_verbose) { 5173 bam_error(OPEN_FAIL, backup, strerror(error)); 5174 } 5175 BAM_DPRINTF((D_OPEN_FAIL, fcn, backup, strerror(error))); 5176 return (NULL); 5177 } 5178 5179 ufs = zfs = lu = NULL; 5180 5181 while (s_fgets(tmpsign, sizeof (tmpsign), bfp) != NULL) { 5182 5183 if (lu == NULL && 5184 strncmp(tmpsign, GRUBSIGN_LU_PREFIX, 5185 strlen(GRUBSIGN_LU_PREFIX)) == 0) { 5186 lu = s_strdup(tmpsign); 5187 } 5188 5189 if (ufs == NULL && 5190 strncmp(tmpsign, GRUBSIGN_UFS_PREFIX, 5191 strlen(GRUBSIGN_UFS_PREFIX)) == 0) { 5192 ufs = s_strdup(tmpsign); 5193 } 5194 5195 if (zfs == NULL && 5196 strncmp(tmpsign, GRUBSIGN_ZFS_PREFIX, 5197 strlen(GRUBSIGN_ZFS_PREFIX)) == 0) { 5198 zfs = s_strdup(tmpsign); 5199 } 5200 } 5201 5202 BAM_DPRINTF((D_EXIST_BACKUP_SIGNS, fcn, 5203 zfs ? zfs : "NULL", 5204 ufs ? ufs : "NULL", 5205 lu ? lu : "NULL")); 5206 5207 if (bfp) { 5208 (void) fclose(bfp); 5209 bfp = NULL; 5210 } 5211 5212 if (strcmp(fstype, "ufs") == 0 && zfs) { 5213 bam_error(SIGN_FSTYPE_MISMATCH, zfs, "ufs"); 5214 free(zfs); 5215 zfs = NULL; 5216 } else if (strcmp(fstype, "zfs") == 0 && ufs) { 5217 bam_error(SIGN_FSTYPE_MISMATCH, ufs, "zfs"); 5218 free(ufs); 5219 ufs = NULL; 5220 } 5221 5222 assert(bfp == NULL); 5223 5224 /* For now, we let Live Upgrade take care of its signature itself */ 5225 if (lu) { 5226 BAM_DPRINTF((D_FREEING_LU_SIGNS, fcn, lu)); 5227 free(lu); 5228 lu = NULL; 5229 } 5230 5231 return (zfs ? zfs : ufs); 5232 } 5233 5234 static char * 5235 find_ufs_existing(char *osroot) 5236 { 5237 char *sign; 5238 const char *fcn = "find_ufs_existing()"; 5239 5240 sign = find_primary_common(osroot, "ufs"); 5241 if (sign == NULL) { 5242 sign = find_backup_common(osroot, "ufs"); 5243 BAM_DPRINTF((D_EXIST_BACKUP_SIGN, fcn, sign ? sign : "NULL")); 5244 } else { 5245 BAM_DPRINTF((D_EXIST_PRIMARY_SIGN, fcn, sign)); 5246 } 5247 5248 return (sign); 5249 } 5250 5251 char * 5252 get_mountpoint(char *special, char *fstype) 5253 { 5254 FILE *mntfp; 5255 struct mnttab mp = {0}; 5256 struct mnttab mpref = {0}; 5257 int error; 5258 int ret; 5259 const char *fcn = "get_mountpoint()"; 5260 5261 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, special, fstype)); 5262 5263 mntfp = fopen(MNTTAB, "r"); 5264 error = errno; 5265 INJECT_ERROR1("MNTTAB_ERR_GET_MNTPT", mntfp = NULL); 5266 if (mntfp == NULL) { 5267 bam_error(OPEN_FAIL, MNTTAB, strerror(error)); 5268 return (NULL); 5269 } 5270 5271 mpref.mnt_special = special; 5272 mpref.mnt_fstype = fstype; 5273 5274 ret = getmntany(mntfp, &mp, &mpref); 5275 INJECT_ERROR1("GET_MOUNTPOINT_MNTANY", ret = 1); 5276 if (ret != 0) { 5277 (void) fclose(mntfp); 5278 BAM_DPRINTF((D_NO_MNTPT, fcn, special, fstype)); 5279 return (NULL); 5280 } 5281 (void) fclose(mntfp); 5282 5283 assert(mp.mnt_mountp); 5284 5285 BAM_DPRINTF((D_GET_MOUNTPOINT_RET, fcn, special, mp.mnt_mountp)); 5286 5287 return (s_strdup(mp.mnt_mountp)); 5288 } 5289 5290 /* 5291 * Mounts a "legacy" top dataset (if needed) 5292 * Returns: The mountpoint of the legacy top dataset or NULL on error 5293 * mnted returns one of the above values defined for zfs_mnted_t 5294 */ 5295 static char * 5296 mount_legacy_dataset(char *pool, zfs_mnted_t *mnted) 5297 { 5298 char cmd[PATH_MAX]; 5299 char tmpmnt[PATH_MAX]; 5300 filelist_t flist = {0}; 5301 char *is_mounted; 5302 struct stat sb; 5303 int ret; 5304 const char *fcn = "mount_legacy_dataset()"; 5305 5306 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, pool)); 5307 5308 *mnted = ZFS_MNT_ERROR; 5309 5310 (void) snprintf(cmd, sizeof (cmd), 5311 "/sbin/zfs get -Ho value mounted %s", 5312 pool); 5313 5314 ret = exec_cmd(cmd, &flist); 5315 INJECT_ERROR1("Z_MOUNT_LEG_GET_MOUNTED_CMD", ret = 1); 5316 if (ret != 0) { 5317 bam_error(ZFS_MNTED_FAILED, pool); 5318 return (NULL); 5319 } 5320 5321 INJECT_ERROR1("Z_MOUNT_LEG_GET_MOUNTED_OUT", flist.head = NULL); 5322 if ((flist.head == NULL) || (flist.head != flist.tail)) { 5323 bam_error(BAD_ZFS_MNTED, pool); 5324 filelist_free(&flist); 5325 return (NULL); 5326 } 5327 5328 is_mounted = strtok(flist.head->line, " \t\n"); 5329 INJECT_ERROR1("Z_MOUNT_LEG_GET_MOUNTED_STRTOK_YES", is_mounted = "yes"); 5330 INJECT_ERROR1("Z_MOUNT_LEG_GET_MOUNTED_STRTOK_NO", is_mounted = "no"); 5331 if (strcmp(is_mounted, "no") != 0) { 5332 filelist_free(&flist); 5333 *mnted = LEGACY_ALREADY; 5334 /* get_mountpoint returns a strdup'ed string */ 5335 BAM_DPRINTF((D_Z_MOUNT_TOP_LEG_ALREADY, fcn, pool)); 5336 return (get_mountpoint(pool, "zfs")); 5337 } 5338 5339 filelist_free(&flist); 5340 5341 /* 5342 * legacy top dataset is not mounted. Mount it now 5343 * First create a mountpoint. 5344 */ 5345 (void) snprintf(tmpmnt, sizeof (tmpmnt), "%s.%d", 5346 ZFS_LEGACY_MNTPT, getpid()); 5347 5348 ret = stat(tmpmnt, &sb); 5349 if (ret == -1) { 5350 BAM_DPRINTF((D_Z_MOUNT_TOP_LEG_MNTPT_ABS, fcn, pool, tmpmnt)); 5351 ret = mkdirp(tmpmnt, DIR_PERMS); 5352 INJECT_ERROR1("Z_MOUNT_TOP_LEG_MNTPT_MKDIRP", ret = -1); 5353 if (ret == -1) { 5354 bam_error(MKDIR_FAILED, tmpmnt, strerror(errno)); 5355 return (NULL); 5356 } 5357 } else { 5358 BAM_DPRINTF((D_Z_MOUNT_TOP_LEG_MNTPT_PRES, fcn, pool, tmpmnt)); 5359 } 5360 5361 (void) snprintf(cmd, sizeof (cmd), 5362 "/sbin/mount -F zfs %s %s", 5363 pool, tmpmnt); 5364 5365 ret = exec_cmd(cmd, NULL); 5366 INJECT_ERROR1("Z_MOUNT_TOP_LEG_MOUNT_CMD", ret = 1); 5367 if (ret != 0) { 5368 bam_error(ZFS_MOUNT_FAILED, pool); 5369 (void) rmdir(tmpmnt); 5370 return (NULL); 5371 } 5372 5373 *mnted = LEGACY_MOUNTED; 5374 BAM_DPRINTF((D_Z_MOUNT_TOP_LEG_MOUNTED, fcn, pool, tmpmnt)); 5375 return (s_strdup(tmpmnt)); 5376 } 5377 5378 /* 5379 * Mounts the top dataset (if needed) 5380 * Returns: The mountpoint of the top dataset or NULL on error 5381 * mnted returns one of the above values defined for zfs_mnted_t 5382 */ 5383 static char * 5384 mount_top_dataset(char *pool, zfs_mnted_t *mnted) 5385 { 5386 char cmd[PATH_MAX]; 5387 filelist_t flist = {0}; 5388 char *is_mounted; 5389 char *mntpt; 5390 char *zmntpt; 5391 int ret; 5392 const char *fcn = "mount_top_dataset()"; 5393 5394 *mnted = ZFS_MNT_ERROR; 5395 5396 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, pool)); 5397 5398 /* 5399 * First check if the top dataset is a "legacy" dataset 5400 */ 5401 (void) snprintf(cmd, sizeof (cmd), 5402 "/sbin/zfs get -Ho value mountpoint %s", 5403 pool); 5404 ret = exec_cmd(cmd, &flist); 5405 INJECT_ERROR1("Z_MOUNT_TOP_GET_MNTPT", ret = 1); 5406 if (ret != 0) { 5407 bam_error(ZFS_MNTPT_FAILED, pool); 5408 return (NULL); 5409 } 5410 5411 if (flist.head && (flist.head == flist.tail)) { 5412 char *legacy = strtok(flist.head->line, " \t\n"); 5413 if (legacy && strcmp(legacy, "legacy") == 0) { 5414 filelist_free(&flist); 5415 BAM_DPRINTF((D_Z_IS_LEGACY, fcn, pool)); 5416 return (mount_legacy_dataset(pool, mnted)); 5417 } 5418 } 5419 5420 filelist_free(&flist); 5421 5422 BAM_DPRINTF((D_Z_IS_NOT_LEGACY, fcn, pool)); 5423 5424 (void) snprintf(cmd, sizeof (cmd), 5425 "/sbin/zfs get -Ho value mounted %s", 5426 pool); 5427 5428 ret = exec_cmd(cmd, &flist); 5429 INJECT_ERROR1("Z_MOUNT_TOP_NONLEG_GET_MOUNTED", ret = 1); 5430 if (ret != 0) { 5431 bam_error(ZFS_MNTED_FAILED, pool); 5432 return (NULL); 5433 } 5434 5435 INJECT_ERROR1("Z_MOUNT_TOP_NONLEG_GET_MOUNTED_VAL", flist.head = NULL); 5436 if ((flist.head == NULL) || (flist.head != flist.tail)) { 5437 bam_error(BAD_ZFS_MNTED, pool); 5438 filelist_free(&flist); 5439 return (NULL); 5440 } 5441 5442 is_mounted = strtok(flist.head->line, " \t\n"); 5443 INJECT_ERROR1("Z_MOUNT_TOP_NONLEG_GET_MOUNTED_YES", is_mounted = "yes"); 5444 INJECT_ERROR1("Z_MOUNT_TOP_NONLEG_GET_MOUNTED_NO", is_mounted = "no"); 5445 if (strcmp(is_mounted, "no") != 0) { 5446 filelist_free(&flist); 5447 *mnted = ZFS_ALREADY; 5448 BAM_DPRINTF((D_Z_MOUNT_TOP_NONLEG_MOUNTED_ALREADY, fcn, pool)); 5449 goto mounted; 5450 } 5451 5452 filelist_free(&flist); 5453 BAM_DPRINTF((D_Z_MOUNT_TOP_NONLEG_MOUNTED_NOT_ALREADY, fcn, pool)); 5454 5455 /* top dataset is not mounted. Mount it now */ 5456 (void) snprintf(cmd, sizeof (cmd), 5457 "/sbin/zfs mount %s", pool); 5458 ret = exec_cmd(cmd, NULL); 5459 INJECT_ERROR1("Z_MOUNT_TOP_NONLEG_MOUNT_CMD", ret = 1); 5460 if (ret != 0) { 5461 bam_error(ZFS_MOUNT_FAILED, pool); 5462 return (NULL); 5463 } 5464 *mnted = ZFS_MOUNTED; 5465 BAM_DPRINTF((D_Z_MOUNT_TOP_NONLEG_MOUNTED_NOW, fcn, pool)); 5466 /*FALLTHRU*/ 5467 mounted: 5468 /* 5469 * Now get the mountpoint 5470 */ 5471 (void) snprintf(cmd, sizeof (cmd), 5472 "/sbin/zfs get -Ho value mountpoint %s", 5473 pool); 5474 5475 ret = exec_cmd(cmd, &flist); 5476 INJECT_ERROR1("Z_MOUNT_TOP_NONLEG_GET_MNTPT_CMD", ret = 1); 5477 if (ret != 0) { 5478 bam_error(ZFS_MNTPT_FAILED, pool); 5479 goto error; 5480 } 5481 5482 INJECT_ERROR1("Z_MOUNT_TOP_NONLEG_GET_MNTPT_OUT", flist.head = NULL); 5483 if ((flist.head == NULL) || (flist.head != flist.tail)) { 5484 bam_error(NULL_ZFS_MNTPT, pool); 5485 goto error; 5486 } 5487 5488 mntpt = strtok(flist.head->line, " \t\n"); 5489 INJECT_ERROR1("Z_MOUNT_TOP_NONLEG_GET_MNTPT_STRTOK", mntpt = "foo"); 5490 if (*mntpt != '/') { 5491 bam_error(BAD_ZFS_MNTPT, pool, mntpt); 5492 goto error; 5493 } 5494 zmntpt = s_strdup(mntpt); 5495 5496 filelist_free(&flist); 5497 5498 BAM_DPRINTF((D_Z_MOUNT_TOP_NONLEG_MNTPT, fcn, pool, zmntpt)); 5499 5500 return (zmntpt); 5501 5502 error: 5503 filelist_free(&flist); 5504 (void) umount_top_dataset(pool, *mnted, NULL); 5505 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 5506 return (NULL); 5507 } 5508 5509 static int 5510 umount_top_dataset(char *pool, zfs_mnted_t mnted, char *mntpt) 5511 { 5512 char cmd[PATH_MAX]; 5513 int ret; 5514 const char *fcn = "umount_top_dataset()"; 5515 5516 INJECT_ERROR1("Z_UMOUNT_TOP_INVALID_STATE", mnted = ZFS_MNT_ERROR); 5517 switch (mnted) { 5518 case LEGACY_ALREADY: 5519 case ZFS_ALREADY: 5520 /* nothing to do */ 5521 BAM_DPRINTF((D_Z_UMOUNT_TOP_ALREADY_NOP, fcn, pool, 5522 mntpt ? mntpt : "NULL")); 5523 free(mntpt); 5524 return (BAM_SUCCESS); 5525 case LEGACY_MOUNTED: 5526 (void) snprintf(cmd, sizeof (cmd), 5527 "/sbin/umount %s", pool); 5528 ret = exec_cmd(cmd, NULL); 5529 INJECT_ERROR1("Z_UMOUNT_TOP_LEGACY_UMOUNT_FAIL", ret = 1); 5530 if (ret != 0) { 5531 bam_error(UMOUNT_FAILED, pool); 5532 free(mntpt); 5533 return (BAM_ERROR); 5534 } 5535 if (mntpt) 5536 (void) rmdir(mntpt); 5537 free(mntpt); 5538 BAM_DPRINTF((D_Z_UMOUNT_TOP_LEGACY, fcn, pool)); 5539 return (BAM_SUCCESS); 5540 case ZFS_MOUNTED: 5541 free(mntpt); 5542 (void) snprintf(cmd, sizeof (cmd), 5543 "/sbin/zfs unmount %s", pool); 5544 ret = exec_cmd(cmd, NULL); 5545 INJECT_ERROR1("Z_UMOUNT_TOP_NONLEG_UMOUNT_FAIL", ret = 1); 5546 if (ret != 0) { 5547 bam_error(UMOUNT_FAILED, pool); 5548 return (BAM_ERROR); 5549 } 5550 BAM_DPRINTF((D_Z_UMOUNT_TOP_NONLEG, fcn, pool)); 5551 return (BAM_SUCCESS); 5552 default: 5553 bam_error(INT_BAD_MNTSTATE, pool); 5554 return (BAM_ERROR); 5555 } 5556 /*NOTREACHED*/ 5557 } 5558 5559 /* 5560 * For ZFS, osdev can be one of two forms 5561 * It can be a "special" file as seen in mnttab: rpool/ROOT/szboot_0402 5562 * It can be a /dev/[r]dsk special file. We handle both instances 5563 */ 5564 static char * 5565 get_pool(char *osdev) 5566 { 5567 char cmd[PATH_MAX]; 5568 char buf[PATH_MAX]; 5569 filelist_t flist = {0}; 5570 char *pool; 5571 char *cp; 5572 char *slash; 5573 int ret; 5574 const char *fcn = "get_pool()"; 5575 5576 INJECT_ERROR1("GET_POOL_OSDEV", osdev = NULL); 5577 if (osdev == NULL) { 5578 bam_error(GET_POOL_OSDEV_NULL); 5579 return (NULL); 5580 } 5581 5582 BAM_DPRINTF((D_GET_POOL_OSDEV, fcn, osdev)); 5583 5584 if (osdev[0] != '/') { 5585 (void) strlcpy(buf, osdev, sizeof (buf)); 5586 slash = strchr(buf, '/'); 5587 if (slash) 5588 *slash = '\0'; 5589 pool = s_strdup(buf); 5590 BAM_DPRINTF((D_GET_POOL_RET, fcn, pool)); 5591 return (pool); 5592 } else if (strncmp(osdev, "/dev/dsk/", strlen("/dev/dsk/")) != 0 && 5593 strncmp(osdev, "/dev/rdsk/", strlen("/dev/rdsk/")) != 0) { 5594 bam_error(GET_POOL_BAD_OSDEV, osdev); 5595 return (NULL); 5596 } 5597 5598 (void) snprintf(cmd, sizeof (cmd), 5599 "/usr/sbin/fstyp -a %s 2>/dev/null | /bin/grep '^name:'", 5600 osdev); 5601 5602 ret = exec_cmd(cmd, &flist); 5603 INJECT_ERROR1("GET_POOL_FSTYP", ret = 1); 5604 if (ret != 0) { 5605 bam_error(FSTYP_A_FAILED, osdev); 5606 return (NULL); 5607 } 5608 5609 INJECT_ERROR1("GET_POOL_FSTYP_OUT", flist.head = NULL); 5610 if ((flist.head == NULL) || (flist.head != flist.tail)) { 5611 bam_error(NULL_FSTYP_A, osdev); 5612 filelist_free(&flist); 5613 return (NULL); 5614 } 5615 5616 (void) strtok(flist.head->line, "'"); 5617 cp = strtok(NULL, "'"); 5618 INJECT_ERROR1("GET_POOL_FSTYP_STRTOK", cp = NULL); 5619 if (cp == NULL) { 5620 bam_error(BAD_FSTYP_A, osdev); 5621 filelist_free(&flist); 5622 return (NULL); 5623 } 5624 5625 pool = s_strdup(cp); 5626 5627 filelist_free(&flist); 5628 5629 BAM_DPRINTF((D_GET_POOL_RET, fcn, pool)); 5630 5631 return (pool); 5632 } 5633 5634 static char * 5635 find_zfs_existing(char *osdev) 5636 { 5637 char *pool; 5638 zfs_mnted_t mnted; 5639 char *mntpt; 5640 char *sign; 5641 const char *fcn = "find_zfs_existing()"; 5642 5643 pool = get_pool(osdev); 5644 INJECT_ERROR1("ZFS_FIND_EXIST_POOL", pool = NULL); 5645 if (pool == NULL) { 5646 bam_error(ZFS_GET_POOL_FAILED, osdev); 5647 return (NULL); 5648 } 5649 5650 mntpt = mount_top_dataset(pool, &mnted); 5651 INJECT_ERROR1("ZFS_FIND_EXIST_MOUNT_TOP", mntpt = NULL); 5652 if (mntpt == NULL) { 5653 bam_error(ZFS_MOUNT_TOP_DATASET_FAILED, pool); 5654 free(pool); 5655 return (NULL); 5656 } 5657 5658 sign = find_primary_common(mntpt, "zfs"); 5659 if (sign == NULL) { 5660 sign = find_backup_common(mntpt, "zfs"); 5661 BAM_DPRINTF((D_EXIST_BACKUP_SIGN, fcn, sign ? sign : "NULL")); 5662 } else { 5663 BAM_DPRINTF((D_EXIST_PRIMARY_SIGN, fcn, sign)); 5664 } 5665 5666 (void) umount_top_dataset(pool, mnted, mntpt); 5667 5668 free(pool); 5669 5670 return (sign); 5671 } 5672 5673 static char * 5674 find_existing_sign(char *osroot, char *osdev, char *fstype) 5675 { 5676 const char *fcn = "find_existing_sign()"; 5677 5678 INJECT_ERROR1("FIND_EXIST_NOTSUP_FS", fstype = "foofs"); 5679 if (strcmp(fstype, "ufs") == 0) { 5680 BAM_DPRINTF((D_CHECK_UFS_EXIST_SIGN, fcn)); 5681 return (find_ufs_existing(osroot)); 5682 } else if (strcmp(fstype, "zfs") == 0) { 5683 BAM_DPRINTF((D_CHECK_ZFS_EXIST_SIGN, fcn)); 5684 return (find_zfs_existing(osdev)); 5685 } else { 5686 bam_error(GRUBSIGN_NOTSUP, fstype); 5687 return (NULL); 5688 } 5689 } 5690 5691 #define MH_HASH_SZ 16 5692 5693 typedef enum { 5694 MH_ERROR = -1, 5695 MH_NOMATCH, 5696 MH_MATCH 5697 } mh_search_t; 5698 5699 typedef struct mcache { 5700 char *mc_special; 5701 char *mc_mntpt; 5702 char *mc_fstype; 5703 struct mcache *mc_next; 5704 } mcache_t; 5705 5706 typedef struct mhash { 5707 mcache_t *mh_hash[MH_HASH_SZ]; 5708 } mhash_t; 5709 5710 static int 5711 mhash_fcn(char *key) 5712 { 5713 int i; 5714 uint64_t sum = 0; 5715 5716 for (i = 0; key[i] != '\0'; i++) { 5717 sum += (uchar_t)key[i]; 5718 } 5719 5720 sum %= MH_HASH_SZ; 5721 5722 assert(sum < MH_HASH_SZ); 5723 5724 return (sum); 5725 } 5726 5727 static mhash_t * 5728 cache_mnttab(void) 5729 { 5730 FILE *mfp; 5731 struct extmnttab mnt; 5732 mcache_t *mcp; 5733 mhash_t *mhp; 5734 char *ctds; 5735 int idx; 5736 int error; 5737 char *special_dup; 5738 const char *fcn = "cache_mnttab()"; 5739 5740 mfp = fopen(MNTTAB, "r"); 5741 error = errno; 5742 INJECT_ERROR1("CACHE_MNTTAB_MNTTAB_ERR", mfp = NULL); 5743 if (mfp == NULL) { 5744 bam_error(OPEN_FAIL, MNTTAB, strerror(error)); 5745 return (NULL); 5746 } 5747 5748 mhp = s_calloc(1, sizeof (mhash_t)); 5749 5750 resetmnttab(mfp); 5751 5752 while (getextmntent(mfp, &mnt, sizeof (mnt)) == 0) { 5753 /* only cache ufs */ 5754 if (strcmp(mnt.mnt_fstype, "ufs") != 0) 5755 continue; 5756 5757 /* basename() modifies its arg, so dup it */ 5758 special_dup = s_strdup(mnt.mnt_special); 5759 ctds = basename(special_dup); 5760 5761 mcp = s_calloc(1, sizeof (mcache_t)); 5762 mcp->mc_special = s_strdup(ctds); 5763 mcp->mc_mntpt = s_strdup(mnt.mnt_mountp); 5764 mcp->mc_fstype = s_strdup(mnt.mnt_fstype); 5765 BAM_DPRINTF((D_CACHE_MNTS, fcn, ctds, 5766 mnt.mnt_mountp, mnt.mnt_fstype)); 5767 idx = mhash_fcn(ctds); 5768 mcp->mc_next = mhp->mh_hash[idx]; 5769 mhp->mh_hash[idx] = mcp; 5770 free(special_dup); 5771 } 5772 5773 (void) fclose(mfp); 5774 5775 return (mhp); 5776 } 5777 5778 static void 5779 free_mnttab(mhash_t *mhp) 5780 { 5781 mcache_t *mcp; 5782 int i; 5783 5784 for (i = 0; i < MH_HASH_SZ; i++) { 5785 /*LINTED*/ 5786 while (mcp = mhp->mh_hash[i]) { 5787 mhp->mh_hash[i] = mcp->mc_next; 5788 free(mcp->mc_special); 5789 free(mcp->mc_mntpt); 5790 free(mcp->mc_fstype); 5791 free(mcp); 5792 } 5793 } 5794 5795 for (i = 0; i < MH_HASH_SZ; i++) { 5796 assert(mhp->mh_hash[i] == NULL); 5797 } 5798 free(mhp); 5799 } 5800 5801 static mh_search_t 5802 search_hash(mhash_t *mhp, char *special, char **mntpt) 5803 { 5804 int idx; 5805 mcache_t *mcp; 5806 const char *fcn = "search_hash()"; 5807 5808 assert(mntpt); 5809 5810 *mntpt = NULL; 5811 5812 INJECT_ERROR1("SEARCH_HASH_FULL_PATH", special = "/foo"); 5813 if (strchr(special, '/')) { 5814 bam_error(INVALID_MHASH_KEY, special); 5815 return (MH_ERROR); 5816 } 5817 5818 idx = mhash_fcn(special); 5819 5820 for (mcp = mhp->mh_hash[idx]; mcp; mcp = mcp->mc_next) { 5821 if (strcmp(mcp->mc_special, special) == 0) 5822 break; 5823 } 5824 5825 if (mcp == NULL) { 5826 BAM_DPRINTF((D_MNTTAB_HASH_NOMATCH, fcn, special)); 5827 return (MH_NOMATCH); 5828 } 5829 5830 assert(strcmp(mcp->mc_fstype, "ufs") == 0); 5831 *mntpt = mcp->mc_mntpt; 5832 BAM_DPRINTF((D_MNTTAB_HASH_MATCH, fcn, special)); 5833 return (MH_MATCH); 5834 } 5835 5836 static int 5837 check_add_ufs_sign_to_list(FILE *tfp, char *mntpt) 5838 { 5839 char *sign; 5840 char *signline; 5841 char signbuf[MAXNAMELEN]; 5842 int len; 5843 int error; 5844 const char *fcn = "check_add_ufs_sign_to_list()"; 5845 5846 /* safe to specify NULL as "osdev" arg for UFS */ 5847 sign = find_existing_sign(mntpt, NULL, "ufs"); 5848 if (sign == NULL) { 5849 /* No existing signature, nothing to add to list */ 5850 BAM_DPRINTF((D_NO_SIGN_TO_LIST, fcn, mntpt)); 5851 return (0); 5852 } 5853 5854 (void) snprintf(signbuf, sizeof (signbuf), "%s\n", sign); 5855 signline = signbuf; 5856 5857 INJECT_ERROR1("UFS_MNTPT_SIGN_NOTUFS", signline = "pool_rpool10\n"); 5858 if (strncmp(signline, GRUBSIGN_UFS_PREFIX, 5859 strlen(GRUBSIGN_UFS_PREFIX))) { 5860 bam_error(INVALID_UFS_SIGNATURE, sign); 5861 free(sign); 5862 /* ignore invalid signatures */ 5863 return (0); 5864 } 5865 5866 len = fputs(signline, tfp); 5867 error = errno; 5868 INJECT_ERROR1("SIGN_LIST_PUTS_ERROR", len = 0); 5869 if (len != strlen(signline)) { 5870 bam_error(SIGN_LIST_FPUTS_ERR, sign, strerror(error)); 5871 free(sign); 5872 return (-1); 5873 } 5874 5875 free(sign); 5876 5877 BAM_DPRINTF((D_SIGN_LIST_PUTS_DONE, fcn, mntpt)); 5878 return (0); 5879 } 5880 5881 /* 5882 * slice is a basename not a full pathname 5883 */ 5884 static int 5885 process_slice_common(char *slice, FILE *tfp, mhash_t *mhp, char *tmpmnt) 5886 { 5887 int ret; 5888 char cmd[PATH_MAX]; 5889 char path[PATH_MAX]; 5890 struct stat sbuf; 5891 char *mntpt; 5892 filelist_t flist = {0}; 5893 char *fstype; 5894 char blkslice[PATH_MAX]; 5895 const char *fcn = "process_slice_common()"; 5896 5897 5898 ret = search_hash(mhp, slice, &mntpt); 5899 switch (ret) { 5900 case MH_MATCH: 5901 if (check_add_ufs_sign_to_list(tfp, mntpt) == -1) 5902 return (-1); 5903 else 5904 return (0); 5905 case MH_NOMATCH: 5906 break; 5907 case MH_ERROR: 5908 default: 5909 return (-1); 5910 } 5911 5912 (void) snprintf(path, sizeof (path), "/dev/rdsk/%s", slice); 5913 if (stat(path, &sbuf) == -1) { 5914 BAM_DPRINTF((D_SLICE_ENOENT, fcn, path)); 5915 return (0); 5916 } 5917 5918 /* Check if ufs */ 5919 (void) snprintf(cmd, sizeof (cmd), 5920 "/usr/sbin/fstyp /dev/rdsk/%s 2>/dev/null", 5921 slice); 5922 5923 if (exec_cmd(cmd, &flist) != 0) { 5924 if (bam_verbose) 5925 bam_print(FSTYP_FAILED, slice); 5926 return (0); 5927 } 5928 5929 if ((flist.head == NULL) || (flist.head != flist.tail)) { 5930 if (bam_verbose) 5931 bam_print(FSTYP_BAD, slice); 5932 filelist_free(&flist); 5933 return (0); 5934 } 5935 5936 fstype = strtok(flist.head->line, " \t\n"); 5937 if (fstype == NULL || strcmp(fstype, "ufs") != 0) { 5938 if (bam_verbose) 5939 bam_print(NOT_UFS_SLICE, slice, fstype); 5940 filelist_free(&flist); 5941 return (0); 5942 } 5943 5944 filelist_free(&flist); 5945 5946 /* 5947 * Since we are mounting the filesystem read-only, the 5948 * the last mount field of the superblock is unchanged 5949 * and does not need to be fixed up post-mount; 5950 */ 5951 5952 (void) snprintf(blkslice, sizeof (blkslice), "/dev/dsk/%s", 5953 slice); 5954 5955 (void) snprintf(cmd, sizeof (cmd), 5956 "/usr/sbin/mount -F ufs -o ro %s %s " 5957 "> /dev/null 2>&1", blkslice, tmpmnt); 5958 5959 if (exec_cmd(cmd, NULL) != 0) { 5960 if (bam_verbose) 5961 bam_print(MOUNT_FAILED, blkslice, "ufs"); 5962 return (0); 5963 } 5964 5965 ret = check_add_ufs_sign_to_list(tfp, tmpmnt); 5966 5967 (void) snprintf(cmd, sizeof (cmd), 5968 "/usr/sbin/umount -f %s > /dev/null 2>&1", 5969 tmpmnt); 5970 5971 if (exec_cmd(cmd, NULL) != 0) { 5972 bam_print(UMOUNT_FAILED, slice); 5973 return (0); 5974 } 5975 5976 return (ret); 5977 } 5978 5979 static int 5980 process_vtoc_slices( 5981 char *s0, 5982 struct vtoc *vtoc, 5983 FILE *tfp, 5984 mhash_t *mhp, 5985 char *tmpmnt) 5986 { 5987 int idx; 5988 char slice[PATH_MAX]; 5989 size_t len; 5990 char *cp; 5991 const char *fcn = "process_vtoc_slices()"; 5992 5993 len = strlen(s0); 5994 5995 assert(s0[len - 2] == 's' && s0[len - 1] == '0'); 5996 5997 s0[len - 1] = '\0'; 5998 5999 (void) strlcpy(slice, s0, sizeof (slice)); 6000 6001 s0[len - 1] = '0'; 6002 6003 cp = slice + len - 1; 6004 6005 for (idx = 0; idx < vtoc->v_nparts; idx++) { 6006 6007 (void) snprintf(cp, sizeof (slice) - (len - 1), "%u", idx); 6008 6009 if (vtoc->v_part[idx].p_size == 0) { 6010 BAM_DPRINTF((D_VTOC_SIZE_ZERO, fcn, slice)); 6011 continue; 6012 } 6013 6014 /* Skip "SWAP", "USR", "BACKUP", "VAR", "HOME", "ALTSCTR" */ 6015 switch (vtoc->v_part[idx].p_tag) { 6016 case V_SWAP: 6017 case V_USR: 6018 case V_BACKUP: 6019 case V_VAR: 6020 case V_HOME: 6021 case V_ALTSCTR: 6022 BAM_DPRINTF((D_VTOC_NOT_ROOT_TAG, fcn, slice)); 6023 continue; 6024 default: 6025 BAM_DPRINTF((D_VTOC_ROOT_TAG, fcn, slice)); 6026 break; 6027 } 6028 6029 /* skip unmountable and readonly slices */ 6030 switch (vtoc->v_part[idx].p_flag) { 6031 case V_UNMNT: 6032 case V_RONLY: 6033 BAM_DPRINTF((D_VTOC_NOT_RDWR_FLAG, fcn, slice)); 6034 continue; 6035 default: 6036 BAM_DPRINTF((D_VTOC_RDWR_FLAG, fcn, slice)); 6037 break; 6038 } 6039 6040 if (process_slice_common(slice, tfp, mhp, tmpmnt) == -1) { 6041 return (-1); 6042 } 6043 } 6044 6045 return (0); 6046 } 6047 6048 static int 6049 process_efi_slices( 6050 char *s0, 6051 struct dk_gpt *efi, 6052 FILE *tfp, 6053 mhash_t *mhp, 6054 char *tmpmnt) 6055 { 6056 int idx; 6057 char slice[PATH_MAX]; 6058 size_t len; 6059 char *cp; 6060 const char *fcn = "process_efi_slices()"; 6061 6062 len = strlen(s0); 6063 6064 assert(s0[len - 2] == 's' && s0[len - 1] == '0'); 6065 6066 s0[len - 1] = '\0'; 6067 6068 (void) strlcpy(slice, s0, sizeof (slice)); 6069 6070 s0[len - 1] = '0'; 6071 6072 cp = slice + len - 1; 6073 6074 for (idx = 0; idx < efi->efi_nparts; idx++) { 6075 6076 (void) snprintf(cp, sizeof (slice) - (len - 1), "%u", idx); 6077 6078 if (efi->efi_parts[idx].p_size == 0) { 6079 BAM_DPRINTF((D_EFI_SIZE_ZERO, fcn, slice)); 6080 continue; 6081 } 6082 6083 /* Skip "SWAP", "USR", "BACKUP", "VAR", "HOME", "ALTSCTR" */ 6084 switch (efi->efi_parts[idx].p_tag) { 6085 case V_SWAP: 6086 case V_USR: 6087 case V_BACKUP: 6088 case V_VAR: 6089 case V_HOME: 6090 case V_ALTSCTR: 6091 BAM_DPRINTF((D_EFI_NOT_ROOT_TAG, fcn, slice)); 6092 continue; 6093 default: 6094 BAM_DPRINTF((D_EFI_ROOT_TAG, fcn, slice)); 6095 break; 6096 } 6097 6098 /* skip unmountable and readonly slices */ 6099 switch (efi->efi_parts[idx].p_flag) { 6100 case V_UNMNT: 6101 case V_RONLY: 6102 BAM_DPRINTF((D_EFI_NOT_RDWR_FLAG, fcn, slice)); 6103 continue; 6104 default: 6105 BAM_DPRINTF((D_EFI_RDWR_FLAG, fcn, slice)); 6106 break; 6107 } 6108 6109 if (process_slice_common(slice, tfp, mhp, tmpmnt) == -1) { 6110 return (-1); 6111 } 6112 } 6113 6114 return (0); 6115 } 6116 6117 /* 6118 * s0 is a basename not a full path 6119 */ 6120 static int 6121 process_slice0(char *s0, FILE *tfp, mhash_t *mhp, char *tmpmnt) 6122 { 6123 struct vtoc vtoc; 6124 struct dk_gpt *efi; 6125 char s0path[PATH_MAX]; 6126 struct stat sbuf; 6127 int e_flag; 6128 int v_flag; 6129 int retval; 6130 int err; 6131 int fd; 6132 const char *fcn = "process_slice0()"; 6133 6134 (void) snprintf(s0path, sizeof (s0path), "/dev/rdsk/%s", s0); 6135 6136 if (stat(s0path, &sbuf) == -1) { 6137 BAM_DPRINTF((D_SLICE0_ENOENT, fcn, s0path)); 6138 return (0); 6139 } 6140 6141 fd = open(s0path, O_NONBLOCK|O_RDONLY); 6142 if (fd == -1) { 6143 bam_error(OPEN_FAIL, s0path, strerror(errno)); 6144 return (0); 6145 } 6146 6147 e_flag = v_flag = 0; 6148 retval = ((err = read_vtoc(fd, &vtoc)) >= 0) ? 0 : err; 6149 switch (retval) { 6150 case VT_EIO: 6151 BAM_DPRINTF((D_VTOC_READ_FAIL, fcn, s0path)); 6152 break; 6153 case VT_EINVAL: 6154 BAM_DPRINTF((D_VTOC_INVALID, fcn, s0path)); 6155 break; 6156 case VT_ERROR: 6157 BAM_DPRINTF((D_VTOC_UNKNOWN_ERR, fcn, s0path)); 6158 break; 6159 case VT_ENOTSUP: 6160 e_flag = 1; 6161 BAM_DPRINTF((D_VTOC_NOTSUP, fcn, s0path)); 6162 break; 6163 case 0: 6164 v_flag = 1; 6165 BAM_DPRINTF((D_VTOC_READ_SUCCESS, fcn, s0path)); 6166 break; 6167 default: 6168 BAM_DPRINTF((D_VTOC_UNKNOWN_RETCODE, fcn, s0path)); 6169 break; 6170 } 6171 6172 6173 if (e_flag) { 6174 e_flag = 0; 6175 retval = ((err = efi_alloc_and_read(fd, &efi)) >= 0) ? 0 : err; 6176 switch (retval) { 6177 case VT_EIO: 6178 BAM_DPRINTF((D_EFI_READ_FAIL, fcn, s0path)); 6179 break; 6180 case VT_EINVAL: 6181 BAM_DPRINTF((D_EFI_INVALID, fcn, s0path)); 6182 break; 6183 case VT_ERROR: 6184 BAM_DPRINTF((D_EFI_UNKNOWN_ERR, fcn, s0path)); 6185 break; 6186 case VT_ENOTSUP: 6187 BAM_DPRINTF((D_EFI_NOTSUP, fcn, s0path)); 6188 break; 6189 case 0: 6190 e_flag = 1; 6191 BAM_DPRINTF((D_EFI_READ_SUCCESS, fcn, s0path)); 6192 break; 6193 default: 6194 BAM_DPRINTF((D_EFI_UNKNOWN_RETCODE, fcn, s0path)); 6195 break; 6196 } 6197 } 6198 6199 (void) close(fd); 6200 6201 if (v_flag) { 6202 retval = process_vtoc_slices(s0, 6203 &vtoc, tfp, mhp, tmpmnt); 6204 } else if (e_flag) { 6205 retval = process_efi_slices(s0, 6206 efi, tfp, mhp, tmpmnt); 6207 } else { 6208 BAM_DPRINTF((D_NOT_VTOC_OR_EFI, fcn, s0path)); 6209 return (0); 6210 } 6211 6212 return (retval); 6213 } 6214 6215 /* 6216 * Find and create a list of all existing UFS boot signatures 6217 */ 6218 static int 6219 FindAllUfsSignatures(void) 6220 { 6221 mhash_t *mnttab_hash; 6222 DIR *dirp = NULL; 6223 struct dirent *dp; 6224 char tmpmnt[PATH_MAX]; 6225 char cmd[PATH_MAX]; 6226 struct stat sb; 6227 int fd; 6228 FILE *tfp; 6229 size_t len; 6230 int ret; 6231 int error; 6232 const char *fcn = "FindAllUfsSignatures()"; 6233 6234 if (stat(UFS_SIGNATURE_LIST, &sb) != -1) { 6235 bam_print(SIGNATURE_LIST_EXISTS, UFS_SIGNATURE_LIST); 6236 return (0); 6237 } 6238 6239 fd = open(UFS_SIGNATURE_LIST".tmp", 6240 O_RDWR|O_CREAT|O_TRUNC, 0644); 6241 error = errno; 6242 INJECT_ERROR1("SIGN_LIST_TMP_TRUNC", fd = -1); 6243 if (fd == -1) { 6244 bam_error(OPEN_FAIL, UFS_SIGNATURE_LIST".tmp", strerror(error)); 6245 return (-1); 6246 } 6247 6248 ret = close(fd); 6249 error = errno; 6250 INJECT_ERROR1("SIGN_LIST_TMP_CLOSE", ret = -1); 6251 if (ret == -1) { 6252 bam_error(CLOSE_FAIL, UFS_SIGNATURE_LIST".tmp", 6253 strerror(error)); 6254 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6255 return (-1); 6256 } 6257 6258 tfp = fopen(UFS_SIGNATURE_LIST".tmp", "a"); 6259 error = errno; 6260 INJECT_ERROR1("SIGN_LIST_APPEND_FOPEN", tfp = NULL); 6261 if (tfp == NULL) { 6262 bam_error(OPEN_FAIL, UFS_SIGNATURE_LIST".tmp", strerror(error)); 6263 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6264 return (-1); 6265 } 6266 6267 mnttab_hash = cache_mnttab(); 6268 INJECT_ERROR1("CACHE_MNTTAB_ERROR", mnttab_hash = NULL); 6269 if (mnttab_hash == NULL) { 6270 (void) fclose(tfp); 6271 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6272 bam_error(CACHE_MNTTAB_FAIL, fcn); 6273 return (-1); 6274 } 6275 6276 (void) snprintf(tmpmnt, sizeof (tmpmnt), 6277 "/tmp/bootadm_ufs_sign_mnt.%d", getpid()); 6278 (void) unlink(tmpmnt); 6279 6280 ret = mkdirp(tmpmnt, DIR_PERMS); 6281 error = errno; 6282 INJECT_ERROR1("MKDIRP_SIGN_MNT", ret = -1); 6283 if (ret == -1) { 6284 bam_error(MKDIR_FAILED, tmpmnt, strerror(error)); 6285 free_mnttab(mnttab_hash); 6286 (void) fclose(tfp); 6287 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6288 return (-1); 6289 } 6290 6291 dirp = opendir("/dev/rdsk"); 6292 error = errno; 6293 INJECT_ERROR1("OPENDIR_DEV_RDSK", dirp = NULL); 6294 if (dirp == NULL) { 6295 bam_error(OPENDIR_FAILED, "/dev/rdsk", strerror(error)); 6296 goto fail; 6297 } 6298 6299 while (dp = readdir(dirp)) { 6300 if (strcmp(dp->d_name, ".") == 0 || 6301 strcmp(dp->d_name, "..") == 0) 6302 continue; 6303 6304 /* 6305 * we only look for the s0 slice. This is guranteed to 6306 * have 's' at len - 2. 6307 */ 6308 len = strlen(dp->d_name); 6309 if (dp->d_name[len - 2 ] != 's' || dp->d_name[len - 1] != '0') { 6310 BAM_DPRINTF((D_SKIP_SLICE_NOTZERO, fcn, dp->d_name)); 6311 continue; 6312 } 6313 6314 ret = process_slice0(dp->d_name, tfp, mnttab_hash, tmpmnt); 6315 INJECT_ERROR1("PROCESS_S0_FAIL", ret = -1); 6316 if (ret == -1) 6317 goto fail; 6318 } 6319 6320 (void) closedir(dirp); 6321 free_mnttab(mnttab_hash); 6322 (void) rmdir(tmpmnt); 6323 6324 ret = fclose(tfp); 6325 error = errno; 6326 INJECT_ERROR1("FCLOSE_SIGNLIST_TMP", ret = EOF); 6327 if (ret == EOF) { 6328 bam_error(CLOSE_FAIL, UFS_SIGNATURE_LIST".tmp", 6329 strerror(error)); 6330 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6331 return (-1); 6332 } 6333 6334 /* We have a list of existing GRUB signatures. Sort it first */ 6335 (void) snprintf(cmd, sizeof (cmd), 6336 "/usr/bin/sort -u %s.tmp > %s.sorted", 6337 UFS_SIGNATURE_LIST, UFS_SIGNATURE_LIST); 6338 6339 ret = exec_cmd(cmd, NULL); 6340 INJECT_ERROR1("SORT_SIGN_LIST", ret = 1); 6341 if (ret != 0) { 6342 bam_error(GRUBSIGN_SORT_FAILED); 6343 (void) unlink(UFS_SIGNATURE_LIST".sorted"); 6344 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6345 return (-1); 6346 } 6347 6348 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6349 6350 ret = rename(UFS_SIGNATURE_LIST".sorted", UFS_SIGNATURE_LIST); 6351 error = errno; 6352 INJECT_ERROR1("RENAME_TMP_SIGNLIST", ret = -1); 6353 if (ret == -1) { 6354 bam_error(RENAME_FAIL, UFS_SIGNATURE_LIST, strerror(error)); 6355 (void) unlink(UFS_SIGNATURE_LIST".sorted"); 6356 return (-1); 6357 } 6358 6359 if (stat(UFS_SIGNATURE_LIST, &sb) == 0 && sb.st_size == 0) { 6360 BAM_DPRINTF((D_ZERO_LEN_SIGNLIST, fcn, UFS_SIGNATURE_LIST)); 6361 } 6362 6363 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6364 return (0); 6365 6366 fail: 6367 if (dirp) 6368 (void) closedir(dirp); 6369 free_mnttab(mnttab_hash); 6370 (void) rmdir(tmpmnt); 6371 (void) fclose(tfp); 6372 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6373 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 6374 return (-1); 6375 } 6376 6377 static char * 6378 create_ufs_sign(void) 6379 { 6380 struct stat sb; 6381 int signnum = -1; 6382 char tmpsign[MAXNAMELEN + 1]; 6383 char *numstr; 6384 int i; 6385 FILE *tfp; 6386 int ret; 6387 int error; 6388 const char *fcn = "create_ufs_sign()"; 6389 6390 bam_print(SEARCHING_UFS_SIGN); 6391 6392 ret = FindAllUfsSignatures(); 6393 INJECT_ERROR1("FIND_ALL_UFS", ret = -1); 6394 if (ret == -1) { 6395 bam_error(ERR_FIND_UFS_SIGN); 6396 return (NULL); 6397 } 6398 6399 /* Make sure the list exists and is owned by root */ 6400 INJECT_ERROR1("SIGNLIST_NOT_CREATED", 6401 (void) unlink(UFS_SIGNATURE_LIST)); 6402 if (stat(UFS_SIGNATURE_LIST, &sb) == -1 || sb.st_uid != 0) { 6403 (void) unlink(UFS_SIGNATURE_LIST); 6404 bam_error(UFS_SIGNATURE_LIST_MISS, UFS_SIGNATURE_LIST); 6405 return (NULL); 6406 } 6407 6408 if (sb.st_size == 0) { 6409 bam_print(GRUBSIGN_UFS_NONE); 6410 i = 0; 6411 goto found; 6412 } 6413 6414 /* The signature list was sorted when it was created */ 6415 tfp = fopen(UFS_SIGNATURE_LIST, "r"); 6416 error = errno; 6417 INJECT_ERROR1("FOPEN_SIGN_LIST", tfp = NULL); 6418 if (tfp == NULL) { 6419 bam_error(UFS_SIGNATURE_LIST_OPENERR, 6420 UFS_SIGNATURE_LIST, strerror(error)); 6421 (void) unlink(UFS_SIGNATURE_LIST); 6422 return (NULL); 6423 } 6424 6425 for (i = 0; s_fgets(tmpsign, sizeof (tmpsign), tfp); i++) { 6426 6427 if (strncmp(tmpsign, GRUBSIGN_UFS_PREFIX, 6428 strlen(GRUBSIGN_UFS_PREFIX)) != 0) { 6429 (void) fclose(tfp); 6430 (void) unlink(UFS_SIGNATURE_LIST); 6431 bam_error(UFS_BADSIGN, tmpsign); 6432 return (NULL); 6433 } 6434 numstr = tmpsign + strlen(GRUBSIGN_UFS_PREFIX); 6435 6436 if (numstr[0] == '\0' || !isdigit(numstr[0])) { 6437 (void) fclose(tfp); 6438 (void) unlink(UFS_SIGNATURE_LIST); 6439 bam_error(UFS_BADSIGN, tmpsign); 6440 return (NULL); 6441 } 6442 6443 signnum = atoi(numstr); 6444 INJECT_ERROR1("NEGATIVE_SIGN", signnum = -1); 6445 if (signnum < 0) { 6446 (void) fclose(tfp); 6447 (void) unlink(UFS_SIGNATURE_LIST); 6448 bam_error(UFS_BADSIGN, tmpsign); 6449 return (NULL); 6450 } 6451 6452 if (i != signnum) { 6453 BAM_DPRINTF((D_FOUND_HOLE_SIGNLIST, fcn, i)); 6454 break; 6455 } 6456 } 6457 6458 (void) fclose(tfp); 6459 6460 found: 6461 (void) snprintf(tmpsign, sizeof (tmpsign), "rootfs%d", i); 6462 6463 /* add the ufs signature to the /var/run list of signatures */ 6464 ret = ufs_add_to_sign_list(tmpsign); 6465 INJECT_ERROR1("UFS_ADD_TO_SIGN_LIST", ret = -1); 6466 if (ret == -1) { 6467 (void) unlink(UFS_SIGNATURE_LIST); 6468 bam_error(FAILED_ADD_SIGNLIST, tmpsign); 6469 return (NULL); 6470 } 6471 6472 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6473 6474 return (s_strdup(tmpsign)); 6475 } 6476 6477 static char * 6478 get_fstype(char *osroot) 6479 { 6480 FILE *mntfp; 6481 struct mnttab mp = {0}; 6482 struct mnttab mpref = {0}; 6483 int error; 6484 int ret; 6485 const char *fcn = "get_fstype()"; 6486 6487 INJECT_ERROR1("GET_FSTYPE_OSROOT", osroot = NULL); 6488 if (osroot == NULL) { 6489 bam_error(GET_FSTYPE_ARGS); 6490 return (NULL); 6491 } 6492 6493 mntfp = fopen(MNTTAB, "r"); 6494 error = errno; 6495 INJECT_ERROR1("GET_FSTYPE_FOPEN", mntfp = NULL); 6496 if (mntfp == NULL) { 6497 bam_error(OPEN_FAIL, MNTTAB, strerror(error)); 6498 return (NULL); 6499 } 6500 6501 if (*osroot == '\0') 6502 mpref.mnt_mountp = "/"; 6503 else 6504 mpref.mnt_mountp = osroot; 6505 6506 ret = getmntany(mntfp, &mp, &mpref); 6507 INJECT_ERROR1("GET_FSTYPE_GETMNTANY", ret = 1); 6508 if (ret != 0) { 6509 bam_error(MNTTAB_MNTPT_NOT_FOUND, osroot, MNTTAB); 6510 (void) fclose(mntfp); 6511 return (NULL); 6512 } 6513 (void) fclose(mntfp); 6514 6515 INJECT_ERROR1("GET_FSTYPE_NULL", mp.mnt_fstype = NULL); 6516 if (mp.mnt_fstype == NULL) { 6517 bam_error(MNTTAB_FSTYPE_NULL, osroot); 6518 return (NULL); 6519 } 6520 6521 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6522 6523 return (s_strdup(mp.mnt_fstype)); 6524 } 6525 6526 static char * 6527 create_zfs_sign(char *osdev) 6528 { 6529 char tmpsign[PATH_MAX]; 6530 char *pool; 6531 const char *fcn = "create_zfs_sign()"; 6532 6533 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, osdev)); 6534 6535 /* 6536 * First find the pool name 6537 */ 6538 pool = get_pool(osdev); 6539 INJECT_ERROR1("CREATE_ZFS_SIGN_GET_POOL", pool = NULL); 6540 if (pool == NULL) { 6541 bam_error(GET_POOL_FAILED, osdev); 6542 return (NULL); 6543 } 6544 6545 (void) snprintf(tmpsign, sizeof (tmpsign), "pool_%s", pool); 6546 6547 BAM_DPRINTF((D_CREATED_ZFS_SIGN, fcn, tmpsign)); 6548 6549 free(pool); 6550 6551 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6552 6553 return (s_strdup(tmpsign)); 6554 } 6555 6556 static char * 6557 create_new_sign(char *osdev, char *fstype) 6558 { 6559 char *sign; 6560 const char *fcn = "create_new_sign()"; 6561 6562 INJECT_ERROR1("NEW_SIGN_FSTYPE", fstype = "foofs"); 6563 6564 if (strcmp(fstype, "zfs") == 0) { 6565 BAM_DPRINTF((D_CREATE_NEW_ZFS, fcn)); 6566 sign = create_zfs_sign(osdev); 6567 } else if (strcmp(fstype, "ufs") == 0) { 6568 BAM_DPRINTF((D_CREATE_NEW_UFS, fcn)); 6569 sign = create_ufs_sign(); 6570 } else { 6571 bam_error(GRUBSIGN_NOTSUP, fstype); 6572 sign = NULL; 6573 } 6574 6575 BAM_DPRINTF((D_CREATED_NEW_SIGN, fcn, sign ? sign : "<NULL>")); 6576 return (sign); 6577 } 6578 6579 static int 6580 set_backup_common(char *mntpt, char *sign) 6581 { 6582 FILE *bfp; 6583 char backup[PATH_MAX]; 6584 char tmpsign[PATH_MAX]; 6585 int error; 6586 char *bdir; 6587 char *backup_dup; 6588 struct stat sb; 6589 int ret; 6590 const char *fcn = "set_backup_common()"; 6591 6592 (void) snprintf(backup, sizeof (backup), "%s%s", 6593 mntpt, GRUBSIGN_BACKUP); 6594 6595 /* First read the backup */ 6596 bfp = fopen(backup, "r"); 6597 if (bfp != NULL) { 6598 while (s_fgets(tmpsign, sizeof (tmpsign), bfp)) { 6599 if (strcmp(tmpsign, sign) == 0) { 6600 BAM_DPRINTF((D_FOUND_IN_BACKUP, fcn, sign)); 6601 (void) fclose(bfp); 6602 return (0); 6603 } 6604 } 6605 (void) fclose(bfp); 6606 BAM_DPRINTF((D_NOT_FOUND_IN_EXIST_BACKUP, fcn, sign)); 6607 } else { 6608 BAM_DPRINTF((D_BACKUP_NOT_EXIST, fcn, backup)); 6609 } 6610 6611 /* 6612 * Didn't find the correct signature. First create 6613 * the directory if necessary. 6614 */ 6615 6616 /* dirname() modifies its argument so dup it */ 6617 backup_dup = s_strdup(backup); 6618 bdir = dirname(backup_dup); 6619 assert(bdir); 6620 6621 ret = stat(bdir, &sb); 6622 INJECT_ERROR1("SET_BACKUP_STAT", ret = -1); 6623 if (ret == -1) { 6624 BAM_DPRINTF((D_BACKUP_DIR_NOEXIST, fcn, bdir)); 6625 ret = mkdirp(bdir, DIR_PERMS); 6626 error = errno; 6627 INJECT_ERROR1("SET_BACKUP_MKDIRP", ret = -1); 6628 if (ret == -1) { 6629 bam_error(GRUBSIGN_BACKUP_MKDIRERR, 6630 GRUBSIGN_BACKUP, strerror(error)); 6631 free(backup_dup); 6632 return (-1); 6633 } 6634 } 6635 free(backup_dup); 6636 6637 /* 6638 * Open the backup in append mode to add the correct 6639 * signature; 6640 */ 6641 bfp = fopen(backup, "a"); 6642 error = errno; 6643 INJECT_ERROR1("SET_BACKUP_FOPEN_A", bfp = NULL); 6644 if (bfp == NULL) { 6645 bam_error(GRUBSIGN_BACKUP_OPENERR, 6646 GRUBSIGN_BACKUP, strerror(error)); 6647 return (-1); 6648 } 6649 6650 (void) snprintf(tmpsign, sizeof (tmpsign), "%s\n", sign); 6651 6652 ret = fputs(tmpsign, bfp); 6653 error = errno; 6654 INJECT_ERROR1("SET_BACKUP_FPUTS", ret = 0); 6655 if (ret != strlen(tmpsign)) { 6656 bam_error(GRUBSIGN_BACKUP_WRITEERR, 6657 GRUBSIGN_BACKUP, strerror(error)); 6658 (void) fclose(bfp); 6659 return (-1); 6660 } 6661 6662 (void) fclose(bfp); 6663 6664 if (bam_verbose) 6665 bam_print(GRUBSIGN_BACKUP_UPDATED, GRUBSIGN_BACKUP); 6666 6667 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6668 6669 return (0); 6670 } 6671 6672 static int 6673 set_backup_ufs(char *osroot, char *sign) 6674 { 6675 const char *fcn = "set_backup_ufs()"; 6676 6677 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, osroot, sign)); 6678 return (set_backup_common(osroot, sign)); 6679 } 6680 6681 static int 6682 set_backup_zfs(char *osdev, char *sign) 6683 { 6684 char *pool; 6685 char *mntpt; 6686 zfs_mnted_t mnted; 6687 int ret; 6688 const char *fcn = "set_backup_zfs()"; 6689 6690 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, osdev, sign)); 6691 6692 pool = get_pool(osdev); 6693 INJECT_ERROR1("SET_BACKUP_GET_POOL", pool = NULL); 6694 if (pool == NULL) { 6695 bam_error(GET_POOL_FAILED, osdev); 6696 return (-1); 6697 } 6698 6699 mntpt = mount_top_dataset(pool, &mnted); 6700 INJECT_ERROR1("SET_BACKUP_MOUNT_DATASET", mntpt = NULL); 6701 if (mntpt == NULL) { 6702 bam_error(FAIL_MNT_TOP_DATASET, pool); 6703 free(pool); 6704 return (-1); 6705 } 6706 6707 ret = set_backup_common(mntpt, sign); 6708 6709 (void) umount_top_dataset(pool, mnted, mntpt); 6710 6711 free(pool); 6712 6713 INJECT_ERROR1("SET_BACKUP_ZFS_FAIL", ret = 1); 6714 if (ret == 0) { 6715 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6716 } else { 6717 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 6718 } 6719 6720 return (ret); 6721 } 6722 6723 static int 6724 set_backup(char *osroot, char *osdev, char *sign, char *fstype) 6725 { 6726 const char *fcn = "set_backup()"; 6727 int ret; 6728 6729 INJECT_ERROR1("SET_BACKUP_FSTYPE", fstype = "foofs"); 6730 6731 if (strcmp(fstype, "ufs") == 0) { 6732 BAM_DPRINTF((D_SET_BACKUP_UFS, fcn)); 6733 ret = set_backup_ufs(osroot, sign); 6734 } else if (strcmp(fstype, "zfs") == 0) { 6735 BAM_DPRINTF((D_SET_BACKUP_ZFS, fcn)); 6736 ret = set_backup_zfs(osdev, sign); 6737 } else { 6738 bam_error(GRUBSIGN_NOTSUP, fstype); 6739 ret = -1; 6740 } 6741 6742 if (ret == 0) { 6743 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6744 } else { 6745 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 6746 } 6747 6748 return (ret); 6749 } 6750 6751 static int 6752 set_primary_common(char *mntpt, char *sign) 6753 { 6754 char signfile[PATH_MAX]; 6755 char signdir[PATH_MAX]; 6756 struct stat sb; 6757 int fd; 6758 int error; 6759 int ret; 6760 const char *fcn = "set_primary_common()"; 6761 6762 (void) snprintf(signfile, sizeof (signfile), "%s/%s/%s", 6763 mntpt, GRUBSIGN_DIR, sign); 6764 6765 if (stat(signfile, &sb) != -1) { 6766 if (bam_verbose) 6767 bam_print(PRIMARY_SIGN_EXISTS, sign); 6768 return (0); 6769 } else { 6770 BAM_DPRINTF((D_PRIMARY_NOT_EXIST, fcn, signfile)); 6771 } 6772 6773 (void) snprintf(signdir, sizeof (signdir), "%s/%s", 6774 mntpt, GRUBSIGN_DIR); 6775 6776 if (stat(signdir, &sb) == -1) { 6777 BAM_DPRINTF((D_PRIMARY_DIR_NOEXIST, fcn, signdir)); 6778 ret = mkdirp(signdir, DIR_PERMS); 6779 error = errno; 6780 INJECT_ERROR1("SET_PRIMARY_MKDIRP", ret = -1); 6781 if (ret == -1) { 6782 bam_error(GRUBSIGN_MKDIR_ERR, signdir, strerror(errno)); 6783 return (-1); 6784 } 6785 } 6786 6787 fd = open(signfile, O_RDWR|O_CREAT|O_TRUNC, 0444); 6788 error = errno; 6789 INJECT_ERROR1("PRIMARY_SIGN_CREAT", fd = -1); 6790 if (fd == -1) { 6791 bam_error(GRUBSIGN_PRIMARY_CREATERR, signfile, strerror(error)); 6792 return (-1); 6793 } 6794 6795 ret = fsync(fd); 6796 error = errno; 6797 INJECT_ERROR1("PRIMARY_FSYNC", ret = -1); 6798 if (ret != 0) { 6799 bam_error(GRUBSIGN_PRIMARY_SYNCERR, signfile, strerror(error)); 6800 } 6801 6802 (void) close(fd); 6803 6804 if (bam_verbose) 6805 bam_print(GRUBSIGN_CREATED_PRIMARY, signfile); 6806 6807 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6808 6809 return (0); 6810 } 6811 6812 static int 6813 set_primary_ufs(char *osroot, char *sign) 6814 { 6815 const char *fcn = "set_primary_ufs()"; 6816 6817 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, osroot, sign)); 6818 return (set_primary_common(osroot, sign)); 6819 } 6820 6821 static int 6822 set_primary_zfs(char *osdev, char *sign) 6823 { 6824 char *pool; 6825 char *mntpt; 6826 zfs_mnted_t mnted; 6827 int ret; 6828 const char *fcn = "set_primary_zfs()"; 6829 6830 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, osdev, sign)); 6831 6832 pool = get_pool(osdev); 6833 INJECT_ERROR1("SET_PRIMARY_ZFS_GET_POOL", pool = NULL); 6834 if (pool == NULL) { 6835 bam_error(GET_POOL_FAILED, osdev); 6836 return (-1); 6837 } 6838 6839 /* Pool name must exist in the sign */ 6840 ret = (strstr(sign, pool) != NULL); 6841 INJECT_ERROR1("SET_PRIMARY_ZFS_POOL_SIGN_INCOMPAT", ret = 0); 6842 if (ret == 0) { 6843 bam_error(POOL_SIGN_INCOMPAT, pool, sign); 6844 free(pool); 6845 return (-1); 6846 } 6847 6848 mntpt = mount_top_dataset(pool, &mnted); 6849 INJECT_ERROR1("SET_PRIMARY_ZFS_MOUNT_DATASET", mntpt = NULL); 6850 if (mntpt == NULL) { 6851 bam_error(FAIL_MNT_TOP_DATASET, pool); 6852 free(pool); 6853 return (-1); 6854 } 6855 6856 ret = set_primary_common(mntpt, sign); 6857 6858 (void) umount_top_dataset(pool, mnted, mntpt); 6859 6860 free(pool); 6861 6862 INJECT_ERROR1("SET_PRIMARY_ZFS_FAIL", ret = 1); 6863 if (ret == 0) { 6864 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6865 } else { 6866 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 6867 } 6868 6869 return (ret); 6870 } 6871 6872 static int 6873 set_primary(char *osroot, char *osdev, char *sign, char *fstype) 6874 { 6875 const char *fcn = "set_primary()"; 6876 int ret; 6877 6878 INJECT_ERROR1("SET_PRIMARY_FSTYPE", fstype = "foofs"); 6879 if (strcmp(fstype, "ufs") == 0) { 6880 BAM_DPRINTF((D_SET_PRIMARY_UFS, fcn)); 6881 ret = set_primary_ufs(osroot, sign); 6882 } else if (strcmp(fstype, "zfs") == 0) { 6883 BAM_DPRINTF((D_SET_PRIMARY_ZFS, fcn)); 6884 ret = set_primary_zfs(osdev, sign); 6885 } else { 6886 bam_error(GRUBSIGN_NOTSUP, fstype); 6887 ret = -1; 6888 } 6889 6890 if (ret == 0) { 6891 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6892 } else { 6893 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 6894 } 6895 6896 return (ret); 6897 } 6898 6899 static int 6900 ufs_add_to_sign_list(char *sign) 6901 { 6902 FILE *tfp; 6903 char signline[MAXNAMELEN]; 6904 char cmd[PATH_MAX]; 6905 int ret; 6906 int error; 6907 const char *fcn = "ufs_add_to_sign_list()"; 6908 6909 INJECT_ERROR1("ADD_TO_SIGN_LIST_NOT_UFS", sign = "pool_rpool5"); 6910 if (strncmp(sign, GRUBSIGN_UFS_PREFIX, 6911 strlen(GRUBSIGN_UFS_PREFIX)) != 0) { 6912 bam_error(INVALID_UFS_SIGN, sign); 6913 (void) unlink(UFS_SIGNATURE_LIST); 6914 return (-1); 6915 } 6916 6917 /* 6918 * most failures in this routine are not a fatal error 6919 * We simply unlink the /var/run file and continue 6920 */ 6921 6922 ret = rename(UFS_SIGNATURE_LIST, UFS_SIGNATURE_LIST".tmp"); 6923 error = errno; 6924 INJECT_ERROR1("ADD_TO_SIGN_LIST_RENAME", ret = -1); 6925 if (ret == -1) { 6926 bam_error(RENAME_FAIL, UFS_SIGNATURE_LIST".tmp", 6927 strerror(error)); 6928 (void) unlink(UFS_SIGNATURE_LIST); 6929 return (0); 6930 } 6931 6932 tfp = fopen(UFS_SIGNATURE_LIST".tmp", "a"); 6933 error = errno; 6934 INJECT_ERROR1("ADD_TO_SIGN_LIST_FOPEN", tfp = NULL); 6935 if (tfp == NULL) { 6936 bam_error(OPEN_FAIL, UFS_SIGNATURE_LIST".tmp", strerror(error)); 6937 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6938 return (0); 6939 } 6940 6941 (void) snprintf(signline, sizeof (signline), "%s\n", sign); 6942 6943 ret = fputs(signline, tfp); 6944 error = errno; 6945 INJECT_ERROR1("ADD_TO_SIGN_LIST_FPUTS", ret = 0); 6946 if (ret != strlen(signline)) { 6947 bam_error(SIGN_LIST_FPUTS_ERR, sign, strerror(error)); 6948 (void) fclose(tfp); 6949 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6950 return (0); 6951 } 6952 6953 ret = fclose(tfp); 6954 error = errno; 6955 INJECT_ERROR1("ADD_TO_SIGN_LIST_FCLOSE", ret = EOF); 6956 if (ret == EOF) { 6957 bam_error(CLOSE_FAIL, UFS_SIGNATURE_LIST".tmp", 6958 strerror(error)); 6959 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6960 return (0); 6961 } 6962 6963 /* Sort the list again */ 6964 (void) snprintf(cmd, sizeof (cmd), 6965 "/usr/bin/sort -u %s.tmp > %s.sorted", 6966 UFS_SIGNATURE_LIST, UFS_SIGNATURE_LIST); 6967 6968 ret = exec_cmd(cmd, NULL); 6969 INJECT_ERROR1("ADD_TO_SIGN_LIST_SORT", ret = 1); 6970 if (ret != 0) { 6971 bam_error(GRUBSIGN_SORT_FAILED); 6972 (void) unlink(UFS_SIGNATURE_LIST".sorted"); 6973 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6974 return (0); 6975 } 6976 6977 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6978 6979 ret = rename(UFS_SIGNATURE_LIST".sorted", UFS_SIGNATURE_LIST); 6980 error = errno; 6981 INJECT_ERROR1("ADD_TO_SIGN_LIST_RENAME2", ret = -1); 6982 if (ret == -1) { 6983 bam_error(RENAME_FAIL, UFS_SIGNATURE_LIST, strerror(error)); 6984 (void) unlink(UFS_SIGNATURE_LIST".sorted"); 6985 return (0); 6986 } 6987 6988 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6989 6990 return (0); 6991 } 6992 6993 static int 6994 set_signature(char *osroot, char *osdev, char *sign, char *fstype) 6995 { 6996 int ret; 6997 const char *fcn = "set_signature()"; 6998 6999 BAM_DPRINTF((D_FUNC_ENTRY4, fcn, osroot, osdev, sign, fstype)); 7000 7001 ret = set_backup(osroot, osdev, sign, fstype); 7002 INJECT_ERROR1("SET_SIGNATURE_BACKUP", ret = -1); 7003 if (ret == -1) { 7004 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 7005 bam_error(SET_BACKUP_FAILED, sign, osroot, osdev); 7006 return (-1); 7007 } 7008 7009 ret = set_primary(osroot, osdev, sign, fstype); 7010 INJECT_ERROR1("SET_SIGNATURE_PRIMARY", ret = -1); 7011 7012 if (ret == 0) { 7013 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 7014 } else { 7015 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 7016 bam_error(SET_PRIMARY_FAILED, sign, osroot, osdev); 7017 7018 } 7019 return (ret); 7020 } 7021 7022 char * 7023 get_grubsign(char *osroot, char *osdev) 7024 { 7025 char *grubsign; /* (<sign>,#,#) */ 7026 char *slice; 7027 int fdiskpart; 7028 char *sign; 7029 char *fstype; 7030 int ret; 7031 const char *fcn = "get_grubsign()"; 7032 7033 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, osroot, osdev)); 7034 fstype = get_fstype(osroot); 7035 INJECT_ERROR1("GET_GRUBSIGN_FSTYPE", fstype = NULL); 7036 if (fstype == NULL) { 7037 bam_error(GET_FSTYPE_FAILED, osroot); 7038 return (NULL); 7039 } 7040 7041 sign = find_existing_sign(osroot, osdev, fstype); 7042 INJECT_ERROR1("FIND_EXISTING_SIGN", sign = NULL); 7043 if (sign == NULL) { 7044 BAM_DPRINTF((D_GET_GRUBSIGN_NO_EXISTING, fcn, osroot, osdev)); 7045 sign = create_new_sign(osdev, fstype); 7046 INJECT_ERROR1("CREATE_NEW_SIGN", sign = NULL); 7047 if (sign == NULL) { 7048 bam_error(GRUBSIGN_CREATE_FAIL, osdev); 7049 free(fstype); 7050 return (NULL); 7051 } 7052 } 7053 7054 ret = set_signature(osroot, osdev, sign, fstype); 7055 INJECT_ERROR1("SET_SIGNATURE_FAIL", ret = -1); 7056 if (ret == -1) { 7057 bam_error(GRUBSIGN_WRITE_FAIL, osdev); 7058 free(sign); 7059 free(fstype); 7060 (void) unlink(UFS_SIGNATURE_LIST); 7061 return (NULL); 7062 } 7063 7064 free(fstype); 7065 7066 if (bam_verbose) 7067 bam_print(GRUBSIGN_FOUND_OR_CREATED, sign, osdev); 7068 7069 fdiskpart = get_partition(osdev); 7070 INJECT_ERROR1("GET_GRUBSIGN_FDISK", fdiskpart = -1); 7071 if (fdiskpart == -1) { 7072 bam_error(FDISKPART_FAIL, osdev); 7073 free(sign); 7074 return (NULL); 7075 } 7076 7077 slice = strrchr(osdev, 's'); 7078 7079 grubsign = s_calloc(1, MAXNAMELEN + 10); 7080 if (slice) { 7081 (void) snprintf(grubsign, MAXNAMELEN + 10, "(%s,%d,%c)", 7082 sign, fdiskpart, slice[1] + 'a' - '0'); 7083 } else 7084 (void) snprintf(grubsign, MAXNAMELEN + 10, "(%s,%d)", 7085 sign, fdiskpart); 7086 7087 free(sign); 7088 7089 BAM_DPRINTF((D_GET_GRUBSIGN_SUCCESS, fcn, grubsign)); 7090 7091 return (grubsign); 7092 } 7093 7094 static char * 7095 get_title(char *rootdir) 7096 { 7097 static char title[80]; 7098 char *cp = NULL; 7099 char release[PATH_MAX]; 7100 FILE *fp; 7101 const char *fcn = "get_title()"; 7102 7103 /* open the /etc/release file */ 7104 (void) snprintf(release, sizeof (release), "%s/etc/release", rootdir); 7105 7106 fp = fopen(release, "r"); 7107 if (fp == NULL) { 7108 bam_error(OPEN_FAIL, release, strerror(errno)); 7109 cp = NULL; 7110 goto out; 7111 } 7112 7113 while (s_fgets(title, sizeof (title), fp) != NULL) { 7114 cp = strstr(title, "Solaris"); 7115 if (cp) 7116 break; 7117 } 7118 (void) fclose(fp); 7119 7120 out: 7121 cp = cp ? cp : "Solaris"; 7122 7123 BAM_DPRINTF((D_GET_TITLE, fcn, cp)); 7124 7125 return (cp); 7126 } 7127 7128 char * 7129 get_special(char *mountp) 7130 { 7131 FILE *mntfp; 7132 struct mnttab mp = {0}; 7133 struct mnttab mpref = {0}; 7134 int error; 7135 int ret; 7136 const char *fcn = "get_special()"; 7137 7138 INJECT_ERROR1("GET_SPECIAL_MNTPT", mountp = NULL); 7139 if (mountp == NULL) { 7140 bam_error(GET_SPECIAL_NULL_MNTPT); 7141 return (NULL); 7142 } 7143 7144 mntfp = fopen(MNTTAB, "r"); 7145 error = errno; 7146 INJECT_ERROR1("GET_SPECIAL_MNTTAB_OPEN", mntfp = NULL); 7147 if (mntfp == NULL) { 7148 bam_error(OPEN_FAIL, MNTTAB, strerror(error)); 7149 return (NULL); 7150 } 7151 7152 if (*mountp == '\0') 7153 mpref.mnt_mountp = "/"; 7154 else 7155 mpref.mnt_mountp = mountp; 7156 7157 ret = getmntany(mntfp, &mp, &mpref); 7158 INJECT_ERROR1("GET_SPECIAL_MNTTAB_SEARCH", ret = 1); 7159 if (ret != 0) { 7160 (void) fclose(mntfp); 7161 BAM_DPRINTF((D_GET_SPECIAL_NOT_IN_MNTTAB, fcn, mountp)); 7162 return (NULL); 7163 } 7164 (void) fclose(mntfp); 7165 7166 BAM_DPRINTF((D_GET_SPECIAL, fcn, mp.mnt_special)); 7167 7168 return (s_strdup(mp.mnt_special)); 7169 } 7170 7171 static void 7172 free_physarray(char **physarray, int n) 7173 { 7174 int i; 7175 const char *fcn = "free_physarray()"; 7176 7177 assert(physarray); 7178 assert(n); 7179 7180 BAM_DPRINTF((D_FUNC_ENTRY_N1, fcn, n)); 7181 7182 for (i = 0; i < n; i++) { 7183 free(physarray[i]); 7184 } 7185 free(physarray); 7186 7187 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 7188 } 7189 7190 static int 7191 zfs_get_physical(char *special, char ***physarray, int *n) 7192 { 7193 char sdup[PATH_MAX]; 7194 char cmd[PATH_MAX]; 7195 char dsk[PATH_MAX]; 7196 char *pool; 7197 filelist_t flist = {0}; 7198 line_t *lp; 7199 line_t *startlp; 7200 char *comp1; 7201 int i; 7202 int ret; 7203 const char *fcn = "zfs_get_physical()"; 7204 7205 assert(special); 7206 7207 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, special)); 7208 7209 INJECT_ERROR1("INVALID_ZFS_SPECIAL", special = "/foo"); 7210 if (special[0] == '/') { 7211 bam_error(INVALID_ZFS_SPECIAL, special); 7212 return (-1); 7213 } 7214 7215 (void) strlcpy(sdup, special, sizeof (sdup)); 7216 7217 pool = strtok(sdup, "/"); 7218 INJECT_ERROR1("ZFS_GET_PHYS_POOL", pool = NULL); 7219 if (pool == NULL) { 7220 bam_error(CANT_FIND_POOL_FROM_SPECIAL, special); 7221 return (-1); 7222 } 7223 7224 (void) snprintf(cmd, sizeof (cmd), "/sbin/zpool status %s", pool); 7225 7226 ret = exec_cmd(cmd, &flist); 7227 INJECT_ERROR1("ZFS_GET_PHYS_STATUS", ret = 1); 7228 if (ret != 0) { 7229 bam_error(ZFS_GET_POOL_STATUS, pool); 7230 return (-1); 7231 } 7232 7233 INJECT_ERROR1("ZFS_GET_PHYS_STATUS_OUT", flist.head = NULL); 7234 if (flist.head == NULL) { 7235 bam_error(BAD_ZPOOL_STATUS, pool); 7236 filelist_free(&flist); 7237 return (-1); 7238 } 7239 7240 for (lp = flist.head; lp; lp = lp->next) { 7241 BAM_DPRINTF((D_STRTOK_ZPOOL_STATUS, fcn, lp->line)); 7242 comp1 = strtok(lp->line, " \t"); 7243 if (comp1 == NULL) { 7244 free(lp->line); 7245 lp->line = NULL; 7246 } else { 7247 comp1 = s_strdup(comp1); 7248 free(lp->line); 7249 lp->line = comp1; 7250 } 7251 } 7252 7253 for (lp = flist.head; lp; lp = lp->next) { 7254 if (lp->line == NULL) 7255 continue; 7256 if (strcmp(lp->line, pool) == 0) { 7257 BAM_DPRINTF((D_FOUND_POOL_IN_ZPOOL_STATUS, fcn, pool)); 7258 break; 7259 } 7260 } 7261 7262 if (lp == NULL) { 7263 bam_error(NO_POOL_IN_ZPOOL_STATUS, pool); 7264 filelist_free(&flist); 7265 return (-1); 7266 } 7267 7268 startlp = lp->next; 7269 for (i = 0, lp = startlp; lp; lp = lp->next) { 7270 if (lp->line == NULL) 7271 continue; 7272 if (strcmp(lp->line, "mirror") == 0) 7273 continue; 7274 if (lp->line[0] == '\0' || strcmp(lp->line, "errors:") == 0) 7275 break; 7276 i++; 7277 BAM_DPRINTF((D_COUNTING_ZFS_PHYS, fcn, i)); 7278 } 7279 7280 if (i == 0) { 7281 bam_error(NO_PHYS_IN_ZPOOL_STATUS, pool); 7282 filelist_free(&flist); 7283 return (-1); 7284 } 7285 7286 *n = i; 7287 *physarray = s_calloc(*n, sizeof (char *)); 7288 for (i = 0, lp = startlp; lp; lp = lp->next) { 7289 if (lp->line == NULL) 7290 continue; 7291 if (strcmp(lp->line, "mirror") == 0) 7292 continue; 7293 if (strcmp(lp->line, "errors:") == 0) 7294 break; 7295 if (strncmp(lp->line, "/dev/dsk/", strlen("/dev/dsk/")) != 0 && 7296 strncmp(lp->line, "/dev/rdsk/", 7297 strlen("/dev/rdsk/")) != 0) { 7298 (void) snprintf(dsk, sizeof (dsk), "/dev/rdsk/%s", 7299 lp->line); 7300 } else { 7301 (void) strlcpy(dsk, lp->line, sizeof (dsk)); 7302 } 7303 BAM_DPRINTF((D_ADDING_ZFS_PHYS, fcn, dsk, pool)); 7304 (*physarray)[i++] = s_strdup(dsk); 7305 } 7306 7307 assert(i == *n); 7308 7309 filelist_free(&flist); 7310 7311 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 7312 return (0); 7313 } 7314 7315 /* 7316 * Certain services needed to run metastat successfully may not 7317 * be enabled. Enable them now. 7318 */ 7319 /* 7320 * Checks if the specified service is online 7321 * Returns: 1 if the service is online 7322 * 0 if the service is not online 7323 * -1 on error 7324 */ 7325 static int 7326 is_svc_online(char *svc) 7327 { 7328 char *state; 7329 const char *fcn = "is_svc_online()"; 7330 7331 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, svc)); 7332 7333 state = smf_get_state(svc); 7334 INJECT_ERROR2("GET_SVC_STATE", free(state), state = NULL); 7335 if (state == NULL) { 7336 bam_error(GET_SVC_STATE_ERR, svc); 7337 return (-1); 7338 } 7339 BAM_DPRINTF((D_GOT_SVC_STATUS, fcn, svc)); 7340 7341 if (strcmp(state, SCF_STATE_STRING_ONLINE) == 0) { 7342 BAM_DPRINTF((D_SVC_ONLINE, fcn, svc)); 7343 free(state); 7344 return (1); 7345 } 7346 7347 BAM_DPRINTF((D_SVC_NOT_ONLINE, fcn, state, svc)); 7348 7349 free(state); 7350 7351 return (0); 7352 } 7353 7354 static int 7355 enable_svc(char *svc) 7356 { 7357 int ret; 7358 int sleeptime; 7359 const char *fcn = "enable_svc()"; 7360 7361 ret = is_svc_online(svc); 7362 if (ret == -1) { 7363 bam_error(SVC_IS_ONLINE_FAILED, svc); 7364 return (-1); 7365 } else if (ret == 1) { 7366 BAM_DPRINTF((D_SVC_ALREADY_ONLINE, fcn, svc)); 7367 return (0); 7368 } 7369 7370 /* Service is not enabled. Enable it now. */ 7371 ret = smf_enable_instance(svc, 0); 7372 INJECT_ERROR1("ENABLE_SVC_FAILED", ret = -1); 7373 if (ret != 0) { 7374 bam_error(ENABLE_SVC_FAILED, svc); 7375 return (-1); 7376 } 7377 7378 BAM_DPRINTF((D_SVC_ONLINE_INITIATED, fcn, svc)); 7379 7380 sleeptime = 0; 7381 do { 7382 ret = is_svc_online(svc); 7383 INJECT_ERROR1("SVC_ONLINE_SUCCESS", ret = 1); 7384 INJECT_ERROR1("SVC_ONLINE_FAILURE", ret = -1); 7385 INJECT_ERROR1("SVC_ONLINE_NOTYET", ret = 0); 7386 if (ret == -1) { 7387 bam_error(ERR_SVC_GET_ONLINE, svc); 7388 return (-1); 7389 } else if (ret == 1) { 7390 BAM_DPRINTF((D_SVC_NOW_ONLINE, fcn, svc)); 7391 return (1); 7392 } 7393 (void) sleep(1); 7394 } while (++sleeptime < 60); 7395 7396 bam_error(TIMEOUT_ENABLE_SVC, svc); 7397 7398 return (-1); 7399 } 7400 7401 static int 7402 ufs_get_physical(char *special, char ***physarray, int *n) 7403 { 7404 char cmd[PATH_MAX]; 7405 char *shortname; 7406 filelist_t flist = {0}; 7407 char *meta; 7408 char *type; 7409 char *comp1; 7410 char *comp2; 7411 char *comp3; 7412 char *comp4; 7413 int i; 7414 line_t *lp; 7415 int ret; 7416 char *svc; 7417 const char *fcn = "ufs_get_physical()"; 7418 7419 assert(special); 7420 7421 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, special)); 7422 7423 if (strncmp(special, "/dev/md/", strlen("/dev/md/")) != 0) { 7424 bam_error(UFS_GET_PHYS_NOT_SVM, special); 7425 return (-1); 7426 } 7427 7428 if (strncmp(special, "/dev/md/dsk/", strlen("/dev/md/dsk/")) == 0) { 7429 shortname = special + strlen("/dev/md/dsk/"); 7430 } else if (strncmp(special, "/dev/md/rdsk/", 7431 strlen("/dev/md/rdsk/")) == 0) { 7432 shortname = special + strlen("/dev/md/rdsk"); 7433 } else { 7434 bam_error(UFS_GET_PHYS_INVALID_SVM, special); 7435 return (-1); 7436 } 7437 7438 BAM_DPRINTF((D_UFS_SVM_SHORT, fcn, special, shortname)); 7439 7440 svc = "network/rpc/meta:default"; 7441 if (enable_svc(svc) == -1) { 7442 bam_error(UFS_SVM_METASTAT_SVC_ERR, svc); 7443 } 7444 7445 (void) snprintf(cmd, sizeof (cmd), "/sbin/metastat -p %s", shortname); 7446 7447 ret = exec_cmd(cmd, &flist); 7448 INJECT_ERROR1("UFS_SVM_METASTAT", ret = 1); 7449 if (ret != 0) { 7450 bam_error(UFS_SVM_METASTAT_ERR, shortname); 7451 return (-1); 7452 } 7453 7454 INJECT_ERROR1("UFS_SVM_METASTAT_OUT", flist.head = NULL); 7455 if (flist.head == NULL) { 7456 bam_error(BAD_UFS_SVM_METASTAT, shortname); 7457 filelist_free(&flist); 7458 return (-1); 7459 } 7460 7461 /* 7462 * Check if not a mirror. We only parse a single metadevice 7463 * if not a mirror 7464 */ 7465 meta = strtok(flist.head->line, " \t"); 7466 type = strtok(NULL, " \t"); 7467 if (meta == NULL || type == NULL) { 7468 bam_error(ERROR_PARSE_UFS_SVM_METASTAT, shortname); 7469 filelist_free(&flist); 7470 return (-1); 7471 } 7472 if (strcmp(type, "-m") != 0) { 7473 comp1 = strtok(NULL, " \t"); 7474 comp2 = strtok(NULL, " \t"); 7475 if (comp1 == NULL || comp2 != NULL) { 7476 bam_error(INVALID_UFS_SVM_METASTAT, shortname); 7477 filelist_free(&flist); 7478 return (-1); 7479 } 7480 BAM_DPRINTF((D_UFS_SVM_ONE_COMP, fcn, comp1, shortname)); 7481 *physarray = s_calloc(1, sizeof (char *)); 7482 (*physarray)[0] = s_strdup(comp1); 7483 *n = 1; 7484 filelist_free(&flist); 7485 return (0); 7486 } 7487 7488 /* 7489 * Okay we have a mirror. Everything after the first line 7490 * is a submirror 7491 */ 7492 for (i = 0, lp = flist.head->next; lp; lp = lp->next) { 7493 if (strstr(lp->line, "/dev/dsk/") == NULL && 7494 strstr(lp->line, "/dev/rdsk/") == NULL) { 7495 bam_error(CANNOT_PARSE_UFS_SVM_METASTAT, shortname); 7496 filelist_free(&flist); 7497 return (-1); 7498 } 7499 i++; 7500 } 7501 7502 *physarray = s_calloc(i, sizeof (char *)); 7503 *n = i; 7504 7505 for (i = 0, lp = flist.head->next; lp; lp = lp->next) { 7506 comp1 = strtok(lp->line, " \t"); 7507 comp2 = strtok(NULL, " \t"); 7508 comp3 = strtok(NULL, " \t"); 7509 comp4 = strtok(NULL, " \t"); 7510 7511 if (comp3 == NULL || comp4 == NULL || 7512 (strncmp(comp4, "/dev/dsk/", strlen("/dev/dsk/")) != 0 && 7513 strncmp(comp4, "/dev/rdsk/", strlen("/dev/rdsk/")) != 0)) { 7514 bam_error(CANNOT_PARSE_UFS_SVM_SUBMIRROR, shortname); 7515 filelist_free(&flist); 7516 free_physarray(*physarray, *n); 7517 return (-1); 7518 } 7519 7520 (*physarray)[i++] = s_strdup(comp4); 7521 } 7522 7523 assert(i == *n); 7524 7525 filelist_free(&flist); 7526 7527 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 7528 return (0); 7529 } 7530 7531 static int 7532 get_physical(char *menu_root, char ***physarray, int *n) 7533 { 7534 char *special; 7535 int ret; 7536 const char *fcn = "get_physical()"; 7537 7538 assert(menu_root); 7539 assert(physarray); 7540 assert(n); 7541 7542 *physarray = NULL; 7543 *n = 0; 7544 7545 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, menu_root)); 7546 7547 /* First get the device special file from /etc/mnttab */ 7548 special = get_special(menu_root); 7549 INJECT_ERROR1("GET_PHYSICAL_SPECIAL", special = NULL); 7550 if (special == NULL) { 7551 bam_error(GET_SPECIAL_NULL, menu_root); 7552 return (-1); 7553 } 7554 7555 /* If already a physical device nothing to do */ 7556 if (strncmp(special, "/dev/dsk/", strlen("/dev/dsk/")) == 0 || 7557 strncmp(special, "/dev/rdsk/", strlen("/dev/rdsk/")) == 0) { 7558 BAM_DPRINTF((D_GET_PHYSICAL_ALREADY, fcn, menu_root, special)); 7559 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 7560 *physarray = s_calloc(1, sizeof (char *)); 7561 (*physarray)[0] = special; 7562 *n = 1; 7563 return (0); 7564 } 7565 7566 if (is_zfs(menu_root)) { 7567 ret = zfs_get_physical(special, physarray, n); 7568 } else if (is_ufs(menu_root)) { 7569 ret = ufs_get_physical(special, physarray, n); 7570 } else { 7571 bam_error(GET_PHYSICAL_NOTSUP_FSTYPE, menu_root, special); 7572 ret = -1; 7573 } 7574 7575 free(special); 7576 7577 INJECT_ERROR1("GET_PHYSICAL_RET", ret = -1); 7578 if (ret == -1) { 7579 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 7580 } else { 7581 int i; 7582 assert (*n > 0); 7583 for (i = 0; i < *n; i++) { 7584 BAM_DPRINTF((D_GET_PHYSICAL_RET, fcn, (*physarray)[i])); 7585 } 7586 } 7587 7588 return (ret); 7589 } 7590 7591 static int 7592 is_bootdisk(char *osroot, char *physical) 7593 { 7594 int ret; 7595 char *grubroot; 7596 char *bootp; 7597 const char *fcn = "is_bootdisk()"; 7598 7599 assert(osroot); 7600 assert(physical); 7601 7602 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, osroot, physical)); 7603 7604 bootp = strstr(physical, "p0:boot"); 7605 if (bootp) 7606 *bootp = '\0'; 7607 /* 7608 * We just want the BIOS mapping for menu disk. 7609 * Don't pass menu_root to get_grubroot() as the 7610 * check that it is used for is not relevant here. 7611 * The osroot is immaterial as well - it is only used to 7612 * to find create_diskmap script. Everything hinges on 7613 * "physical" 7614 */ 7615 grubroot = get_grubroot(osroot, physical, NULL); 7616 7617 INJECT_ERROR1("IS_BOOTDISK_GRUBROOT", grubroot = NULL); 7618 if (grubroot == NULL) { 7619 if (bam_verbose) 7620 bam_error(NO_GRUBROOT_FOR_DISK, physical); 7621 return (0); 7622 } 7623 ret = grubroot[3] == '0'; 7624 free(grubroot); 7625 7626 BAM_DPRINTF((D_RETURN_RET, fcn, ret)); 7627 7628 return (ret); 7629 } 7630 7631 /* 7632 * Check if menu is on the boot device 7633 * Return 0 (false) on error 7634 */ 7635 static int 7636 menu_on_bootdisk(char *osroot, char *menu_root) 7637 { 7638 char **physarray; 7639 int ret; 7640 int n; 7641 int i; 7642 int on_bootdisk; 7643 const char *fcn = "menu_on_bootdisk()"; 7644 7645 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, osroot, menu_root)); 7646 7647 ret = get_physical(menu_root, &physarray, &n); 7648 INJECT_ERROR1("MENU_ON_BOOTDISK_PHYSICAL", ret = -1); 7649 if (ret != 0) { 7650 bam_error(GET_PHYSICAL_MENU_NULL, menu_root); 7651 return (0); 7652 } 7653 7654 assert(physarray); 7655 assert(n > 0); 7656 7657 on_bootdisk = 0; 7658 for (i = 0; i < n; i++) { 7659 assert(strncmp(physarray[i], "/dev/dsk/", 7660 strlen("/dev/dsk/")) == 0 || 7661 strncmp(physarray[i], "/dev/rdsk/", 7662 strlen("/dev/rdsk/")) == 0); 7663 7664 BAM_DPRINTF((D_CHECK_ON_BOOTDISK, fcn, physarray[i])); 7665 if (is_bootdisk(osroot, physarray[i])) { 7666 on_bootdisk = 1; 7667 BAM_DPRINTF((D_IS_ON_BOOTDISK, fcn, physarray[i])); 7668 } 7669 } 7670 7671 free_physarray(physarray, n); 7672 7673 INJECT_ERROR1("ON_BOOTDISK_YES", on_bootdisk = 1); 7674 INJECT_ERROR1("ON_BOOTDISK_NO", on_bootdisk = 0); 7675 if (on_bootdisk) { 7676 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 7677 } else { 7678 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 7679 } 7680 7681 return (on_bootdisk); 7682 } 7683 7684 void 7685 bam_add_line(menu_t *mp, entry_t *entry, line_t *prev, line_t *lp) 7686 { 7687 const char *fcn = "bam_add_line()"; 7688 7689 assert(mp); 7690 assert(entry); 7691 assert(prev); 7692 assert(lp); 7693 7694 lp->next = prev->next; 7695 if (prev->next) { 7696 BAM_DPRINTF((D_ADD_LINE_PREV_NEXT, fcn)); 7697 prev->next->prev = lp; 7698 } else { 7699 BAM_DPRINTF((D_ADD_LINE_NOT_PREV_NEXT, fcn)); 7700 } 7701 prev->next = lp; 7702 lp->prev = prev; 7703 7704 if (entry->end == prev) { 7705 BAM_DPRINTF((D_ADD_LINE_LAST_LINE_IN_ENTRY, fcn)); 7706 entry->end = lp; 7707 } 7708 if (mp->end == prev) { 7709 assert(lp->next == NULL); 7710 mp->end = lp; 7711 BAM_DPRINTF((D_ADD_LINE_LAST_LINE_IN_MENU, fcn)); 7712 } 7713 } 7714 7715 /* 7716 * look for matching bootadm entry with specified parameters 7717 * Here are the rules (based on existing usage): 7718 * - If title is specified, match on title only 7719 * - Else, match on root/findroot, kernel, and module. 7720 * Note that, if root_opt is non-zero, the absence of 7721 * root line is considered a match. 7722 */ 7723 static entry_t * 7724 find_boot_entry( 7725 menu_t *mp, 7726 char *title, 7727 char *kernel, 7728 char *findroot, 7729 char *root, 7730 char *module, 7731 int root_opt, 7732 int *entry_num) 7733 { 7734 int i; 7735 line_t *lp; 7736 entry_t *ent; 7737 const char *fcn = "find_boot_entry()"; 7738 7739 if (entry_num) 7740 *entry_num = BAM_ERROR; 7741 7742 /* find matching entry */ 7743 for (i = 0, ent = mp->entries; ent; i++, ent = ent->next) { 7744 lp = ent->start; 7745 7746 /* first line of entry must be bootadm comment */ 7747 lp = ent->start; 7748 if (lp->flags != BAM_COMMENT || 7749 strcmp(lp->arg, BAM_BOOTADM_HDR) != 0) { 7750 continue; 7751 } 7752 7753 /* advance to title line */ 7754 lp = lp->next; 7755 if (title) { 7756 if (lp->flags == BAM_TITLE && lp->arg && 7757 strcmp(lp->arg, title) == 0) { 7758 BAM_DPRINTF((D_MATCHED_TITLE, fcn, title)); 7759 break; 7760 } 7761 BAM_DPRINTF((D_NOMATCH_TITLE, fcn, title, lp->arg)); 7762 continue; /* check title only */ 7763 } 7764 7765 lp = lp->next; /* advance to root line */ 7766 if (lp == NULL) { 7767 continue; 7768 } else if (strcmp(lp->cmd, menu_cmds[FINDROOT_CMD]) == 0) { 7769 INJECT_ERROR1("FIND_BOOT_ENTRY_NULL_FINDROOT", 7770 findroot = NULL); 7771 if (findroot == NULL) { 7772 BAM_DPRINTF((D_NOMATCH_FINDROOT_NULL, 7773 fcn, lp->arg)); 7774 continue; 7775 } 7776 /* findroot command found, try match */ 7777 if (strcmp(lp->arg, findroot) != 0) { 7778 BAM_DPRINTF((D_NOMATCH_FINDROOT, 7779 fcn, findroot, lp->arg)); 7780 continue; 7781 } 7782 BAM_DPRINTF((D_MATCHED_FINDROOT, fcn, findroot)); 7783 lp = lp->next; /* advance to kernel line */ 7784 } else if (strcmp(lp->cmd, menu_cmds[ROOT_CMD]) == 0) { 7785 INJECT_ERROR1("FIND_BOOT_ENTRY_NULL_ROOT", root = NULL); 7786 if (root == NULL) { 7787 BAM_DPRINTF((D_NOMATCH_ROOT_NULL, 7788 fcn, lp->arg)); 7789 continue; 7790 } 7791 /* root cmd found, try match */ 7792 if (strcmp(lp->arg, root) != 0) { 7793 BAM_DPRINTF((D_NOMATCH_ROOT, 7794 fcn, root, lp->arg)); 7795 continue; 7796 } 7797 BAM_DPRINTF((D_MATCHED_ROOT, fcn, root)); 7798 lp = lp->next; /* advance to kernel line */ 7799 } else { 7800 INJECT_ERROR1("FIND_BOOT_ENTRY_ROOT_OPT_NO", 7801 root_opt = 0); 7802 INJECT_ERROR1("FIND_BOOT_ENTRY_ROOT_OPT_YES", 7803 root_opt = 1); 7804 /* no root command, see if root is optional */ 7805 if (root_opt == 0) { 7806 BAM_DPRINTF((D_NO_ROOT_OPT, fcn)); 7807 continue; 7808 } 7809 BAM_DPRINTF((D_ROOT_OPT, fcn)); 7810 } 7811 7812 if (lp == NULL || lp->next == NULL) { 7813 continue; 7814 } 7815 7816 if (kernel && 7817 (!check_cmd(lp->cmd, KERNEL_CMD, lp->arg, kernel))) { 7818 if (!(ent->flags & BAM_ENTRY_FAILSAFE) || 7819 !(ent->flags & BAM_ENTRY_DBOOT) || 7820 strcmp(kernel, DIRECT_BOOT_FAILSAFE_LINE) != 0) 7821 continue; 7822 7823 ent->flags |= BAM_ENTRY_UPGFSKERNEL; 7824 7825 } 7826 BAM_DPRINTF((D_KERNEL_MATCH, fcn, kernel, lp->arg)); 7827 7828 /* 7829 * Check for matching module entry (failsafe or normal). 7830 * If it fails to match, we go around the loop again. 7831 * For xpv entries, there are two module lines, so we 7832 * do the check twice. 7833 */ 7834 lp = lp->next; /* advance to module line */ 7835 if (check_cmd(lp->cmd, MODULE_CMD, lp->arg, module) || 7836 (((lp = lp->next) != NULL) && 7837 check_cmd(lp->cmd, MODULE_CMD, lp->arg, module))) { 7838 /* match found */ 7839 BAM_DPRINTF((D_MODULE_MATCH, fcn, module, lp->arg)); 7840 break; 7841 } 7842 7843 if (strcmp(module, FAILSAFE_ARCHIVE) == 0 && 7844 (strcmp(lp->prev->arg, FAILSAFE_ARCHIVE_32) == 0 || 7845 strcmp(lp->prev->arg, FAILSAFE_ARCHIVE_64) == 0)) { 7846 ent->flags |= BAM_ENTRY_UPGFSMODULE; 7847 break; 7848 } 7849 7850 } 7851 7852 if (ent && entry_num) { 7853 *entry_num = i; 7854 } 7855 7856 if (ent) { 7857 BAM_DPRINTF((D_RETURN_RET, fcn, i)); 7858 } else { 7859 BAM_DPRINTF((D_RETURN_RET, fcn, BAM_ERROR)); 7860 } 7861 return (ent); 7862 } 7863 7864 static int 7865 update_boot_entry(menu_t *mp, char *title, char *findroot, char *root, 7866 char *kernel, char *mod_kernel, char *module, int root_opt) 7867 { 7868 int i; 7869 int change_kernel = 0; 7870 entry_t *ent; 7871 line_t *lp; 7872 line_t *tlp; 7873 char linebuf[BAM_MAXLINE]; 7874 const char *fcn = "update_boot_entry()"; 7875 7876 /* note: don't match on title, it's updated on upgrade */ 7877 ent = find_boot_entry(mp, NULL, kernel, findroot, root, module, 7878 root_opt, &i); 7879 if ((ent == NULL) && (bam_direct == BAM_DIRECT_DBOOT)) { 7880 /* 7881 * We may be upgrading a kernel from multiboot to 7882 * directboot. Look for a multiboot entry. A multiboot 7883 * entry will not have a findroot line. 7884 */ 7885 ent = find_boot_entry(mp, NULL, "multiboot", NULL, root, 7886 MULTIBOOT_ARCHIVE, root_opt, &i); 7887 if (ent != NULL) { 7888 BAM_DPRINTF((D_UPGRADE_FROM_MULTIBOOT, fcn, root)); 7889 change_kernel = 1; 7890 } 7891 } else if (ent) { 7892 BAM_DPRINTF((D_FOUND_FINDROOT, fcn, findroot)); 7893 } 7894 7895 if (ent == NULL) { 7896 BAM_DPRINTF((D_ENTRY_NOT_FOUND_CREATING, fcn, findroot)); 7897 return (add_boot_entry(mp, title, findroot, 7898 kernel, mod_kernel, module, NULL)); 7899 } 7900 7901 /* replace title of existing entry and update findroot line */ 7902 lp = ent->start; 7903 lp = lp->next; /* title line */ 7904 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 7905 menu_cmds[TITLE_CMD], menu_cmds[SEP_CMD], title); 7906 free(lp->arg); 7907 free(lp->line); 7908 lp->arg = s_strdup(title); 7909 lp->line = s_strdup(linebuf); 7910 BAM_DPRINTF((D_CHANGING_TITLE, fcn, title)); 7911 7912 tlp = lp; /* title line */ 7913 lp = lp->next; /* root line */ 7914 7915 /* if no root or findroot command, create a new line_t */ 7916 if (strcmp(lp->cmd, menu_cmds[ROOT_CMD]) != 0 && 7917 strcmp(lp->cmd, menu_cmds[FINDROOT_CMD]) != 0) { 7918 lp = s_calloc(1, sizeof (line_t)); 7919 bam_add_line(mp, ent, tlp, lp); 7920 } else { 7921 free(lp->cmd); 7922 free(lp->sep); 7923 free(lp->arg); 7924 free(lp->line); 7925 } 7926 7927 lp->cmd = s_strdup(menu_cmds[FINDROOT_CMD]); 7928 lp->sep = s_strdup(menu_cmds[SEP_CMD]); 7929 lp->arg = s_strdup(findroot); 7930 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 7931 menu_cmds[FINDROOT_CMD], menu_cmds[SEP_CMD], findroot); 7932 lp->line = s_strdup(linebuf); 7933 BAM_DPRINTF((D_ADDING_FINDROOT_LINE, fcn, findroot)); 7934 7935 /* kernel line */ 7936 lp = lp->next; 7937 7938 if (ent->flags & BAM_ENTRY_UPGFSKERNEL) { 7939 char *params = NULL; 7940 7941 params = strstr(lp->line, "-s"); 7942 if (params != NULL) 7943 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s%s", 7944 menu_cmds[KERNEL_DOLLAR_CMD], menu_cmds[SEP_CMD], 7945 kernel, params+2); 7946 else 7947 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 7948 menu_cmds[KERNEL_DOLLAR_CMD], menu_cmds[SEP_CMD], 7949 kernel); 7950 7951 free(lp->cmd); 7952 free(lp->arg); 7953 free(lp->line); 7954 lp->cmd = s_strdup(menu_cmds[KERNEL_DOLLAR_CMD]); 7955 lp->arg = s_strdup(strstr(linebuf, "/")); 7956 lp->line = s_strdup(linebuf); 7957 ent->flags &= ~BAM_ENTRY_UPGFSKERNEL; 7958 BAM_DPRINTF((D_ADDING_KERNEL_DOLLAR, fcn, lp->prev->cmd)); 7959 } 7960 7961 if (change_kernel) { 7962 /* 7963 * We're upgrading from multiboot to directboot. 7964 */ 7965 if (strcmp(lp->cmd, menu_cmds[KERNEL_CMD]) == 0) { 7966 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 7967 menu_cmds[KERNEL_DOLLAR_CMD], menu_cmds[SEP_CMD], 7968 kernel); 7969 free(lp->cmd); 7970 free(lp->arg); 7971 free(lp->line); 7972 lp->cmd = s_strdup(menu_cmds[KERNEL_DOLLAR_CMD]); 7973 lp->arg = s_strdup(kernel); 7974 lp->line = s_strdup(linebuf); 7975 lp = lp->next; 7976 BAM_DPRINTF((D_ADDING_KERNEL_DOLLAR, fcn, kernel)); 7977 } 7978 if (strcmp(lp->cmd, menu_cmds[MODULE_CMD]) == 0) { 7979 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 7980 menu_cmds[MODULE_DOLLAR_CMD], menu_cmds[SEP_CMD], 7981 module); 7982 free(lp->cmd); 7983 free(lp->arg); 7984 free(lp->line); 7985 lp->cmd = s_strdup(menu_cmds[MODULE_DOLLAR_CMD]); 7986 lp->arg = s_strdup(module); 7987 lp->line = s_strdup(linebuf); 7988 lp = lp->next; 7989 BAM_DPRINTF((D_ADDING_MODULE_DOLLAR, fcn, module)); 7990 } 7991 } 7992 7993 /* module line */ 7994 lp = lp->next; 7995 7996 if (ent->flags & BAM_ENTRY_UPGFSMODULE) { 7997 if (strcmp(lp->cmd, menu_cmds[MODULE_CMD]) == 0) { 7998 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 7999 menu_cmds[MODULE_DOLLAR_CMD], menu_cmds[SEP_CMD], 8000 module); 8001 free(lp->cmd); 8002 free(lp->arg); 8003 free(lp->line); 8004 lp->cmd = s_strdup(menu_cmds[MODULE_DOLLAR_CMD]); 8005 lp->arg = s_strdup(module); 8006 lp->line = s_strdup(linebuf); 8007 lp = lp->next; 8008 ent->flags &= ~BAM_ENTRY_UPGFSMODULE; 8009 BAM_DPRINTF((D_ADDING_MODULE_DOLLAR, fcn, module)); 8010 } 8011 } 8012 8013 BAM_DPRINTF((D_RETURN_RET, fcn, i)); 8014 return (i); 8015 } 8016 8017 int 8018 root_optional(char *osroot, char *menu_root) 8019 { 8020 char *ospecial; 8021 char *mspecial; 8022 char *slash; 8023 int root_opt; 8024 int ret1; 8025 int ret2; 8026 const char *fcn = "root_optional()"; 8027 8028 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, osroot, menu_root)); 8029 8030 /* 8031 * For all filesystems except ZFS, a straight compare of osroot 8032 * and menu_root will tell us if root is optional. 8033 * For ZFS, the situation is complicated by the fact that 8034 * menu_root and osroot are always different 8035 */ 8036 ret1 = is_zfs(osroot); 8037 ret2 = is_zfs(menu_root); 8038 INJECT_ERROR1("ROOT_OPT_NOT_ZFS", ret1 = 0); 8039 if (!ret1 || !ret2) { 8040 BAM_DPRINTF((D_ROOT_OPT_NOT_ZFS, fcn, osroot, menu_root)); 8041 root_opt = (strcmp(osroot, menu_root) == 0); 8042 goto out; 8043 } 8044 8045 ospecial = get_special(osroot); 8046 INJECT_ERROR1("ROOT_OPTIONAL_OSPECIAL", ospecial = NULL); 8047 if (ospecial == NULL) { 8048 bam_error(GET_OSROOT_SPECIAL_ERR, osroot); 8049 return (0); 8050 } 8051 BAM_DPRINTF((D_ROOT_OPTIONAL_OSPECIAL, fcn, ospecial, osroot)); 8052 8053 mspecial = get_special(menu_root); 8054 INJECT_ERROR1("ROOT_OPTIONAL_MSPECIAL", mspecial = NULL); 8055 if (mspecial == NULL) { 8056 bam_error(GET_MENU_ROOT_SPECIAL_ERR, menu_root); 8057 free(ospecial); 8058 return (0); 8059 } 8060 BAM_DPRINTF((D_ROOT_OPTIONAL_MSPECIAL, fcn, mspecial, menu_root)); 8061 8062 slash = strchr(ospecial, '/'); 8063 if (slash) 8064 *slash = '\0'; 8065 BAM_DPRINTF((D_ROOT_OPTIONAL_FIXED_OSPECIAL, fcn, ospecial, osroot)); 8066 8067 root_opt = (strcmp(ospecial, mspecial) == 0); 8068 8069 free(ospecial); 8070 free(mspecial); 8071 8072 out: 8073 INJECT_ERROR1("ROOT_OPTIONAL_NO", root_opt = 0); 8074 INJECT_ERROR1("ROOT_OPTIONAL_YES", root_opt = 1); 8075 if (root_opt) { 8076 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 8077 } else { 8078 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 8079 } 8080 8081 return (root_opt); 8082 } 8083 8084 /*ARGSUSED*/ 8085 static error_t 8086 update_entry(menu_t *mp, char *menu_root, char *osdev) 8087 { 8088 int entry; 8089 char *grubsign; 8090 char *grubroot; 8091 char *title; 8092 char osroot[PATH_MAX]; 8093 char *failsafe_kernel = NULL; 8094 struct stat sbuf; 8095 char failsafe[256]; 8096 char failsafe_64[256]; 8097 int ret; 8098 const char *fcn = "update_entry()"; 8099 8100 assert(mp); 8101 assert(menu_root); 8102 assert(osdev); 8103 assert(bam_root); 8104 8105 BAM_DPRINTF((D_FUNC_ENTRY3, fcn, menu_root, osdev, bam_root)); 8106 8107 (void) strlcpy(osroot, bam_root, sizeof (osroot)); 8108 8109 title = get_title(osroot); 8110 assert(title); 8111 8112 grubsign = get_grubsign(osroot, osdev); 8113 INJECT_ERROR1("GET_GRUBSIGN_FAIL", grubsign = NULL); 8114 if (grubsign == NULL) { 8115 bam_error(GET_GRUBSIGN_ERROR, osroot, osdev); 8116 return (BAM_ERROR); 8117 } 8118 8119 /* 8120 * It is not a fatal error if get_grubroot() fails 8121 * We no longer rely on biosdev to populate the 8122 * menu 8123 */ 8124 grubroot = get_grubroot(osroot, osdev, menu_root); 8125 INJECT_ERROR1("GET_GRUBROOT_FAIL", grubroot = NULL); 8126 if (grubroot) { 8127 BAM_DPRINTF((D_GET_GRUBROOT_SUCCESS, 8128 fcn, osroot, osdev, menu_root)); 8129 } else { 8130 BAM_DPRINTF((D_GET_GRUBROOT_FAILURE, 8131 fcn, osroot, osdev, menu_root)); 8132 } 8133 8134 /* add the entry for normal Solaris */ 8135 INJECT_ERROR1("UPDATE_ENTRY_MULTIBOOT", 8136 bam_direct = BAM_DIRECT_MULTIBOOT); 8137 if (bam_direct == BAM_DIRECT_DBOOT) { 8138 entry = update_boot_entry(mp, title, grubsign, grubroot, 8139 (bam_zfs ? DIRECT_BOOT_KERNEL_ZFS : DIRECT_BOOT_KERNEL), 8140 NULL, DIRECT_BOOT_ARCHIVE, 8141 root_optional(osroot, menu_root)); 8142 BAM_DPRINTF((D_UPDATED_BOOT_ENTRY, fcn, bam_zfs, grubsign)); 8143 if ((entry != BAM_ERROR) && (bam_is_hv == BAM_HV_PRESENT)) { 8144 (void) update_boot_entry(mp, NEW_HV_ENTRY, grubsign, 8145 grubroot, XEN_MENU, bam_zfs ? 8146 XEN_KERNEL_MODULE_LINE_ZFS : XEN_KERNEL_MODULE_LINE, 8147 DIRECT_BOOT_ARCHIVE, 8148 root_optional(osroot, menu_root)); 8149 BAM_DPRINTF((D_UPDATED_HV_ENTRY, 8150 fcn, bam_zfs, grubsign)); 8151 } 8152 } else { 8153 entry = update_boot_entry(mp, title, grubsign, grubroot, 8154 MULTI_BOOT, NULL, MULTIBOOT_ARCHIVE, 8155 root_optional(osroot, menu_root)); 8156 8157 BAM_DPRINTF((D_UPDATED_MULTIBOOT_ENTRY, fcn, grubsign)); 8158 } 8159 8160 /* 8161 * Add the entry for failsafe archive. On a bfu'd system, the 8162 * failsafe may be different than the installed kernel. 8163 */ 8164 (void) snprintf(failsafe, sizeof (failsafe), "%s%s", 8165 osroot, FAILSAFE_ARCHIVE_32); 8166 (void) snprintf(failsafe_64, sizeof (failsafe_64), "%s%s", 8167 osroot, FAILSAFE_ARCHIVE_64); 8168 8169 /* 8170 * Check if at least one of the two archives exists 8171 * Using $ISADIR as the default line, we have an entry which works 8172 * for both the cases. 8173 */ 8174 8175 if (stat(failsafe, &sbuf) == 0 || stat(failsafe_64, &sbuf) == 0) { 8176 8177 /* Figure out where the kernel line should point */ 8178 (void) snprintf(failsafe, sizeof (failsafe), "%s%s", osroot, 8179 DIRECT_BOOT_FAILSAFE_32); 8180 (void) snprintf(failsafe_64, sizeof (failsafe_64), "%s%s", 8181 osroot, DIRECT_BOOT_FAILSAFE_64); 8182 if (stat(failsafe, &sbuf) == 0 || 8183 stat(failsafe_64, &sbuf) == 0) { 8184 failsafe_kernel = DIRECT_BOOT_FAILSAFE_LINE; 8185 } else { 8186 (void) snprintf(failsafe, sizeof (failsafe), "%s%s", 8187 osroot, MULTI_BOOT_FAILSAFE); 8188 if (stat(failsafe, &sbuf) == 0) { 8189 failsafe_kernel = MULTI_BOOT_FAILSAFE_LINE; 8190 } 8191 } 8192 if (failsafe_kernel != NULL) { 8193 (void) update_boot_entry(mp, FAILSAFE_TITLE, grubsign, 8194 grubroot, failsafe_kernel, NULL, FAILSAFE_ARCHIVE, 8195 root_optional(osroot, menu_root)); 8196 BAM_DPRINTF((D_UPDATED_FAILSAFE_ENTRY, fcn, 8197 failsafe_kernel)); 8198 } 8199 } 8200 free(grubroot); 8201 8202 INJECT_ERROR1("UPDATE_ENTRY_ERROR", entry = BAM_ERROR); 8203 if (entry == BAM_ERROR) { 8204 bam_error(FAILED_TO_ADD_BOOT_ENTRY, title, grubsign); 8205 free(grubsign); 8206 return (BAM_ERROR); 8207 } 8208 free(grubsign); 8209 8210 update_numbering(mp); 8211 ret = set_global(mp, menu_cmds[DEFAULT_CMD], entry); 8212 INJECT_ERROR1("SET_DEFAULT_ERROR", ret = BAM_ERROR); 8213 if (ret == BAM_ERROR) { 8214 bam_error(SET_DEFAULT_FAILED, entry); 8215 } 8216 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 8217 return (BAM_WRITE); 8218 } 8219 8220 static void 8221 save_default_entry(menu_t *mp, const char *which) 8222 { 8223 int lineNum; 8224 int entryNum; 8225 int entry = 0; /* default is 0 */ 8226 char linebuf[BAM_MAXLINE]; 8227 line_t *lp = mp->curdefault; 8228 const char *fcn = "save_default_entry()"; 8229 8230 if (mp->start) { 8231 lineNum = mp->end->lineNum; 8232 entryNum = mp->end->entryNum; 8233 } else { 8234 lineNum = LINE_INIT; 8235 entryNum = ENTRY_INIT; 8236 } 8237 8238 if (lp) 8239 entry = s_strtol(lp->arg); 8240 8241 (void) snprintf(linebuf, sizeof (linebuf), "#%s%d", which, entry); 8242 BAM_DPRINTF((D_SAVING_DEFAULT_TO, fcn, linebuf)); 8243 line_parser(mp, linebuf, &lineNum, &entryNum); 8244 BAM_DPRINTF((D_SAVED_DEFAULT_TO, fcn, lineNum, entryNum)); 8245 } 8246 8247 static void 8248 restore_default_entry(menu_t *mp, const char *which, line_t *lp) 8249 { 8250 int entry; 8251 char *str; 8252 const char *fcn = "restore_default_entry()"; 8253 8254 if (lp == NULL) { 8255 BAM_DPRINTF((D_RESTORE_DEFAULT_NULL, fcn)); 8256 return; /* nothing to restore */ 8257 } 8258 8259 BAM_DPRINTF((D_RESTORE_DEFAULT_STR, fcn, which)); 8260 8261 str = lp->arg + strlen(which); 8262 entry = s_strtol(str); 8263 (void) set_global(mp, menu_cmds[DEFAULT_CMD], entry); 8264 8265 BAM_DPRINTF((D_RESTORED_DEFAULT_TO, fcn, entry)); 8266 8267 /* delete saved old default line */ 8268 unlink_line(mp, lp); 8269 line_free(lp); 8270 } 8271 8272 /* 8273 * This function is for supporting reboot with args. 8274 * The opt value can be: 8275 * NULL delete temp entry, if present 8276 * entry=<n> switches default entry to <n> 8277 * else treated as boot-args and setup a temperary menu entry 8278 * and make it the default 8279 * Note that we are always rebooting the current OS instance 8280 * so osroot == / always. 8281 */ 8282 #define REBOOT_TITLE "Solaris_reboot_transient" 8283 8284 /*ARGSUSED*/ 8285 static error_t 8286 update_temp(menu_t *mp, char *dummy, char *opt) 8287 { 8288 int entry; 8289 char *osdev; 8290 char *fstype; 8291 char *sign; 8292 char *opt_ptr; 8293 char *path; 8294 char kernbuf[BUFSIZ]; 8295 char args_buf[BUFSIZ]; 8296 char signbuf[PATH_MAX]; 8297 int ret; 8298 const char *fcn = "update_temp()"; 8299 8300 assert(mp); 8301 assert(dummy == NULL); 8302 8303 /* opt can be NULL */ 8304 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, opt ? opt : "<NULL>")); 8305 BAM_DPRINTF((D_BAM_ROOT, fcn, bam_alt_root, bam_root)); 8306 8307 if (bam_alt_root || bam_rootlen != 1 || 8308 strcmp(bam_root, "/") != 0 || 8309 strcmp(rootbuf, "/") != 0) { 8310 bam_error(ALT_ROOT_INVALID, bam_root); 8311 return (BAM_ERROR); 8312 } 8313 8314 /* If no option, delete exiting reboot menu entry */ 8315 if (opt == NULL) { 8316 entry_t *ent; 8317 BAM_DPRINTF((D_OPT_NULL, fcn)); 8318 ent = find_boot_entry(mp, REBOOT_TITLE, NULL, NULL, 8319 NULL, NULL, 0, &entry); 8320 if (ent == NULL) { /* not found is ok */ 8321 BAM_DPRINTF((D_TRANSIENT_NOTFOUND, fcn)); 8322 return (BAM_SUCCESS); 8323 } 8324 (void) delete_boot_entry(mp, entry, DBE_PRINTERR); 8325 restore_default_entry(mp, BAM_OLDDEF, mp->olddefault); 8326 mp->olddefault = NULL; 8327 BAM_DPRINTF((D_RESTORED_DEFAULT, fcn)); 8328 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 8329 return (BAM_WRITE); 8330 } 8331 8332 /* if entry= is specified, set the default entry */ 8333 if (strncmp(opt, "entry=", strlen("entry=")) == 0) { 8334 int entryNum = s_strtol(opt + strlen("entry=")); 8335 BAM_DPRINTF((D_ENTRY_EQUALS, fcn, opt)); 8336 if (selector(mp, opt, &entry, NULL) == BAM_SUCCESS) { 8337 /* this is entry=# option */ 8338 ret = set_global(mp, menu_cmds[DEFAULT_CMD], entry); 8339 BAM_DPRINTF((D_ENTRY_SET_IS, fcn, entry, ret)); 8340 return (ret); 8341 } else { 8342 bam_error(SET_DEFAULT_FAILED, entryNum); 8343 return (BAM_ERROR); 8344 } 8345 } 8346 8347 /* 8348 * add a new menu entry based on opt and make it the default 8349 */ 8350 8351 fstype = get_fstype("/"); 8352 INJECT_ERROR1("REBOOT_FSTYPE_NULL", fstype = NULL); 8353 if (fstype == NULL) { 8354 bam_error(REBOOT_FSTYPE_FAILED); 8355 return (BAM_ERROR); 8356 } 8357 8358 osdev = get_special("/"); 8359 INJECT_ERROR1("REBOOT_SPECIAL_NULL", osdev = NULL); 8360 if (osdev == NULL) { 8361 free(fstype); 8362 bam_error(REBOOT_SPECIAL_FAILED); 8363 return (BAM_ERROR); 8364 } 8365 8366 sign = find_existing_sign("/", osdev, fstype); 8367 INJECT_ERROR1("REBOOT_SIGN_NULL", sign = NULL); 8368 if (sign == NULL) { 8369 free(fstype); 8370 free(osdev); 8371 bam_error(REBOOT_SIGN_FAILED); 8372 return (BAM_ERROR); 8373 } 8374 8375 free(osdev); 8376 (void) strlcpy(signbuf, sign, sizeof (signbuf)); 8377 free(sign); 8378 8379 assert(strchr(signbuf, '(') == NULL && strchr(signbuf, ',') == NULL && 8380 strchr(signbuf, ')') == NULL); 8381 8382 /* 8383 * There is no alternate root while doing reboot with args 8384 * This version of bootadm is only delivered with a DBOOT 8385 * version of Solaris. 8386 */ 8387 INJECT_ERROR1("REBOOT_NOT_DBOOT", bam_direct = BAM_DIRECT_MULTIBOOT); 8388 if (bam_direct != BAM_DIRECT_DBOOT) { 8389 free(fstype); 8390 bam_error(REBOOT_DIRECT_FAILED); 8391 return (BAM_ERROR); 8392 } 8393 8394 /* add an entry for Solaris reboot */ 8395 if (opt[0] == '-') { 8396 /* It's an option - first see if boot-file is set */ 8397 ret = get_kernel(mp, KERNEL_CMD, kernbuf, sizeof (kernbuf)); 8398 INJECT_ERROR1("REBOOT_GET_KERNEL", ret = BAM_ERROR); 8399 if (ret != BAM_SUCCESS) { 8400 free(fstype); 8401 bam_error(REBOOT_GET_KERNEL_FAILED); 8402 return (BAM_ERROR); 8403 } 8404 if (kernbuf[0] == '\0') 8405 (void) strlcpy(kernbuf, DIRECT_BOOT_KERNEL, 8406 sizeof (kernbuf)); 8407 /* 8408 * If this is a zfs file system and kernbuf does not 8409 * have "-B $ZFS-BOOTFS" string yet, add it. 8410 */ 8411 if (strcmp(fstype, "zfs") == 0 && !strstr(kernbuf, ZFS_BOOT)) { 8412 (void) strlcat(kernbuf, " ", sizeof (kernbuf)); 8413 (void) strlcat(kernbuf, ZFS_BOOT, sizeof (kernbuf)); 8414 } 8415 (void) strlcat(kernbuf, " ", sizeof (kernbuf)); 8416 (void) strlcat(kernbuf, opt, sizeof (kernbuf)); 8417 BAM_DPRINTF((D_REBOOT_OPTION, fcn, kernbuf)); 8418 } else if (opt[0] == '/') { 8419 /* It's a full path, so write it out. */ 8420 (void) strlcpy(kernbuf, opt, sizeof (kernbuf)); 8421 8422 /* 8423 * If someone runs: 8424 * 8425 * # eeprom boot-args='-kd' 8426 * # reboot /platform/i86pc/kernel/unix 8427 * 8428 * we want to use the boot-args as part of the boot 8429 * line. On the other hand, if someone runs: 8430 * 8431 * # reboot "/platform/i86pc/kernel/unix -kd" 8432 * 8433 * we don't need to mess with boot-args. If there's 8434 * no space in the options string, assume we're in the 8435 * first case. 8436 */ 8437 if (strchr(opt, ' ') == NULL) { 8438 ret = get_kernel(mp, ARGS_CMD, args_buf, 8439 sizeof (args_buf)); 8440 INJECT_ERROR1("REBOOT_GET_ARGS", ret = BAM_ERROR); 8441 if (ret != BAM_SUCCESS) { 8442 free(fstype); 8443 bam_error(REBOOT_GET_ARGS_FAILED); 8444 return (BAM_ERROR); 8445 } 8446 8447 if (args_buf[0] != '\0') { 8448 (void) strlcat(kernbuf, " ", sizeof (kernbuf)); 8449 (void) strlcat(kernbuf, args_buf, 8450 sizeof (kernbuf)); 8451 } 8452 } 8453 BAM_DPRINTF((D_REBOOT_ABSPATH, fcn, kernbuf)); 8454 } else { 8455 /* 8456 * It may be a partial path, or it may be a partial 8457 * path followed by options. Assume that only options 8458 * follow a space. If someone sends us a kernel path 8459 * that includes a space, they deserve to be broken. 8460 */ 8461 opt_ptr = strchr(opt, ' '); 8462 if (opt_ptr != NULL) { 8463 *opt_ptr = '\0'; 8464 } 8465 8466 path = expand_path(opt); 8467 if (path != NULL) { 8468 (void) strlcpy(kernbuf, path, sizeof (kernbuf)); 8469 free(path); 8470 8471 /* 8472 * If there were options given, use those. 8473 * Otherwise, copy over the default options. 8474 */ 8475 if (opt_ptr != NULL) { 8476 /* Restore the space in opt string */ 8477 *opt_ptr = ' '; 8478 (void) strlcat(kernbuf, opt_ptr, 8479 sizeof (kernbuf)); 8480 } else { 8481 ret = get_kernel(mp, ARGS_CMD, args_buf, 8482 sizeof (args_buf)); 8483 INJECT_ERROR1("UPDATE_TEMP_PARTIAL_ARGS", 8484 ret = BAM_ERROR); 8485 if (ret != BAM_SUCCESS) { 8486 free(fstype); 8487 bam_error(REBOOT_GET_ARGS_FAILED); 8488 return (BAM_ERROR); 8489 } 8490 8491 if (args_buf[0] != '\0') { 8492 (void) strlcat(kernbuf, " ", 8493 sizeof (kernbuf)); 8494 (void) strlcat(kernbuf, 8495 args_buf, sizeof (kernbuf)); 8496 } 8497 } 8498 BAM_DPRINTF((D_REBOOT_RESOLVED_PARTIAL, fcn, kernbuf)); 8499 } else { 8500 free(fstype); 8501 bam_error(UNKNOWN_KERNEL, opt); 8502 bam_print_stderr(UNKNOWN_KERNEL_REBOOT); 8503 return (BAM_ERROR); 8504 } 8505 } 8506 free(fstype); 8507 entry = add_boot_entry(mp, REBOOT_TITLE, signbuf, kernbuf, 8508 NULL, NULL, NULL); 8509 INJECT_ERROR1("REBOOT_ADD_BOOT_ENTRY", entry = BAM_ERROR); 8510 if (entry == BAM_ERROR) { 8511 bam_error(REBOOT_WITH_ARGS_ADD_ENTRY_FAILED); 8512 return (BAM_ERROR); 8513 } 8514 8515 save_default_entry(mp, BAM_OLDDEF); 8516 ret = set_global(mp, menu_cmds[DEFAULT_CMD], entry); 8517 INJECT_ERROR1("REBOOT_SET_GLOBAL", ret = BAM_ERROR); 8518 if (ret == BAM_ERROR) { 8519 bam_error(REBOOT_SET_DEFAULT_FAILED, entry); 8520 } 8521 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 8522 return (BAM_WRITE); 8523 } 8524 8525 error_t 8526 set_global(menu_t *mp, char *globalcmd, int val) 8527 { 8528 line_t *lp; 8529 line_t *found; 8530 line_t *last; 8531 char *cp; 8532 char *str; 8533 char prefix[BAM_MAXLINE]; 8534 size_t len; 8535 const char *fcn = "set_global()"; 8536 8537 assert(mp); 8538 assert(globalcmd); 8539 8540 if (strcmp(globalcmd, menu_cmds[DEFAULT_CMD]) == 0) { 8541 INJECT_ERROR1("SET_GLOBAL_VAL_NEG", val = -1); 8542 INJECT_ERROR1("SET_GLOBAL_MENU_EMPTY", mp->end = NULL); 8543 INJECT_ERROR1("SET_GLOBAL_VAL_TOO_BIG", val = 100); 8544 if (val < 0 || mp->end == NULL || val > mp->end->entryNum) { 8545 (void) snprintf(prefix, sizeof (prefix), "%d", val); 8546 bam_error(INVALID_ENTRY, prefix); 8547 return (BAM_ERROR); 8548 } 8549 } 8550 8551 found = last = NULL; 8552 for (lp = mp->start; lp; lp = lp->next) { 8553 if (lp->flags != BAM_GLOBAL) 8554 continue; 8555 8556 last = lp; /* track the last global found */ 8557 8558 INJECT_ERROR1("SET_GLOBAL_NULL_CMD", lp->cmd = NULL); 8559 if (lp->cmd == NULL) { 8560 bam_error(NO_CMD, lp->lineNum); 8561 continue; 8562 } 8563 if (strcmp(globalcmd, lp->cmd) != 0) 8564 continue; 8565 8566 BAM_DPRINTF((D_FOUND_GLOBAL, fcn, globalcmd)); 8567 8568 if (found) { 8569 bam_error(DUP_CMD, globalcmd, lp->lineNum, bam_root); 8570 } 8571 found = lp; 8572 } 8573 8574 if (found == NULL) { 8575 lp = s_calloc(1, sizeof (line_t)); 8576 if (last == NULL) { 8577 lp->next = mp->start; 8578 mp->start = lp; 8579 mp->end = (mp->end) ? mp->end : lp; 8580 } else { 8581 lp->next = last->next; 8582 last->next = lp; 8583 if (lp->next == NULL) 8584 mp->end = lp; 8585 } 8586 lp->flags = BAM_GLOBAL; /* other fields not needed for writes */ 8587 len = strlen(globalcmd) + strlen(menu_cmds[SEP_CMD]); 8588 len += 10; /* val < 10 digits */ 8589 lp->line = s_calloc(1, len); 8590 (void) snprintf(lp->line, len, "%s%s%d", 8591 globalcmd, menu_cmds[SEP_CMD], val); 8592 BAM_DPRINTF((D_SET_GLOBAL_WROTE_NEW, fcn, lp->line)); 8593 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 8594 return (BAM_WRITE); 8595 } 8596 8597 /* 8598 * We are changing an existing entry. Retain any prefix whitespace, 8599 * but overwrite everything else. This preserves tabs added for 8600 * readability. 8601 */ 8602 str = found->line; 8603 cp = prefix; 8604 while (*str == ' ' || *str == '\t') 8605 *(cp++) = *(str++); 8606 *cp = '\0'; /* Terminate prefix */ 8607 len = strlen(prefix) + strlen(globalcmd); 8608 len += strlen(menu_cmds[SEP_CMD]) + 10; 8609 8610 free(found->line); 8611 found->line = s_calloc(1, len); 8612 (void) snprintf(found->line, len, 8613 "%s%s%s%d", prefix, globalcmd, menu_cmds[SEP_CMD], val); 8614 8615 BAM_DPRINTF((D_SET_GLOBAL_REPLACED, fcn, found->line)); 8616 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 8617 return (BAM_WRITE); /* need a write to menu */ 8618 } 8619 8620 /* 8621 * partial_path may be anything like "kernel/unix" or "kmdb". Try to 8622 * expand it to a full unix path. The calling function is expected to 8623 * output a message if an error occurs and NULL is returned. 8624 */ 8625 static char * 8626 expand_path(const char *partial_path) 8627 { 8628 int new_path_len; 8629 char *new_path; 8630 char new_path2[PATH_MAX]; 8631 struct stat sb; 8632 const char *fcn = "expand_path()"; 8633 8634 new_path_len = strlen(partial_path) + 64; 8635 new_path = s_calloc(1, new_path_len); 8636 8637 /* First, try the simplest case - something like "kernel/unix" */ 8638 (void) snprintf(new_path, new_path_len, "/platform/i86pc/%s", 8639 partial_path); 8640 if (stat(new_path, &sb) == 0) { 8641 BAM_DPRINTF((D_EXPAND_PATH, fcn, new_path)); 8642 return (new_path); 8643 } 8644 8645 if (strcmp(partial_path, "kmdb") == 0) { 8646 (void) snprintf(new_path, new_path_len, "%s -k", 8647 DIRECT_BOOT_KERNEL); 8648 BAM_DPRINTF((D_EXPAND_PATH, fcn, new_path)); 8649 return (new_path); 8650 } 8651 8652 /* 8653 * We've quickly reached unsupported usage. Try once more to 8654 * see if we were just given a glom name. 8655 */ 8656 (void) snprintf(new_path, new_path_len, "/platform/i86pc/%s/unix", 8657 partial_path); 8658 (void) snprintf(new_path2, PATH_MAX, "/platform/i86pc/%s/amd64/unix", 8659 partial_path); 8660 if (stat(new_path, &sb) == 0) { 8661 if (stat(new_path2, &sb) == 0) { 8662 /* 8663 * We matched both, so we actually 8664 * want to write the $ISADIR version. 8665 */ 8666 (void) snprintf(new_path, new_path_len, 8667 "/platform/i86pc/kernel/%s/$ISADIR/unix", 8668 partial_path); 8669 } 8670 BAM_DPRINTF((D_EXPAND_PATH, fcn, new_path)); 8671 return (new_path); 8672 } 8673 8674 free(new_path); 8675 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 8676 return (NULL); 8677 } 8678 8679 /* 8680 * The kernel cmd and arg have been changed, so 8681 * check whether the archive line needs to change. 8682 */ 8683 static void 8684 set_archive_line(entry_t *entryp, line_t *kernelp) 8685 { 8686 line_t *lp = entryp->start; 8687 char *new_archive; 8688 menu_cmd_t m_cmd; 8689 const char *fcn = "set_archive_line()"; 8690 8691 for (; lp != NULL; lp = lp->next) { 8692 if (strncmp(lp->cmd, menu_cmds[MODULE_CMD], 8693 sizeof (menu_cmds[MODULE_CMD]) - 1) == 0) { 8694 break; 8695 } 8696 8697 INJECT_ERROR1("SET_ARCHIVE_LINE_END_ENTRY", lp = entryp->end); 8698 if (lp == entryp->end) { 8699 BAM_DPRINTF((D_ARCHIVE_LINE_NONE, fcn, 8700 entryp->entryNum)); 8701 return; 8702 } 8703 } 8704 INJECT_ERROR1("SET_ARCHIVE_LINE_END_MENU", lp = NULL); 8705 if (lp == NULL) { 8706 BAM_DPRINTF((D_ARCHIVE_LINE_NONE, fcn, entryp->entryNum)); 8707 return; 8708 } 8709 8710 if (strstr(kernelp->arg, "$ISADIR") != NULL) { 8711 new_archive = DIRECT_BOOT_ARCHIVE; 8712 m_cmd = MODULE_DOLLAR_CMD; 8713 } else if (strstr(kernelp->arg, "amd64") != NULL) { 8714 new_archive = DIRECT_BOOT_ARCHIVE_64; 8715 m_cmd = MODULE_CMD; 8716 } else { 8717 new_archive = DIRECT_BOOT_ARCHIVE_32; 8718 m_cmd = MODULE_CMD; 8719 } 8720 8721 if (strcmp(lp->arg, new_archive) == 0) { 8722 BAM_DPRINTF((D_ARCHIVE_LINE_NOCHANGE, fcn, lp->arg)); 8723 return; 8724 } 8725 8726 if (strcmp(lp->cmd, menu_cmds[m_cmd]) != 0) { 8727 free(lp->cmd); 8728 lp->cmd = s_strdup(menu_cmds[m_cmd]); 8729 } 8730 8731 free(lp->arg); 8732 lp->arg = s_strdup(new_archive); 8733 update_line(lp); 8734 BAM_DPRINTF((D_ARCHIVE_LINE_REPLACED, fcn, lp->line)); 8735 } 8736 8737 /* 8738 * Title for an entry to set properties that once went in bootenv.rc. 8739 */ 8740 #define BOOTENV_RC_TITLE "Solaris bootenv rc" 8741 8742 /* 8743 * If path is NULL, return the kernel (optnum == KERNEL_CMD) or arguments 8744 * (optnum == ARGS_CMD) in the argument buf. If path is a zero-length 8745 * string, reset the value to the default. If path is a non-zero-length 8746 * string, set the kernel or arguments. 8747 */ 8748 static error_t 8749 get_set_kernel( 8750 menu_t *mp, 8751 menu_cmd_t optnum, 8752 char *path, 8753 char *buf, 8754 size_t bufsize) 8755 { 8756 int entryNum; 8757 int rv = BAM_SUCCESS; 8758 int free_new_path = 0; 8759 entry_t *entryp; 8760 line_t *ptr; 8761 line_t *kernelp; 8762 char *new_arg; 8763 char *old_args; 8764 char *space; 8765 char *new_path; 8766 char old_space; 8767 size_t old_kernel_len; 8768 size_t new_str_len; 8769 char *fstype; 8770 char *osdev; 8771 char *sign; 8772 char signbuf[PATH_MAX]; 8773 int ret; 8774 const char *fcn = "get_set_kernel()"; 8775 8776 assert(bufsize > 0); 8777 8778 ptr = kernelp = NULL; 8779 new_arg = old_args = space = NULL; 8780 new_path = NULL; 8781 buf[0] = '\0'; 8782 8783 INJECT_ERROR1("GET_SET_KERNEL_NOT_DBOOT", 8784 bam_direct = BAM_DIRECT_MULTIBOOT); 8785 if (bam_direct != BAM_DIRECT_DBOOT) { 8786 bam_error(NOT_DBOOT, optnum == KERNEL_CMD ? "kernel" : "args"); 8787 return (BAM_ERROR); 8788 } 8789 8790 /* 8791 * If a user changed the default entry to a non-bootadm controlled 8792 * one, we don't want to mess with it. Just print an error and 8793 * return. 8794 */ 8795 if (mp->curdefault) { 8796 entryNum = s_strtol(mp->curdefault->arg); 8797 for (entryp = mp->entries; entryp; entryp = entryp->next) { 8798 if (entryp->entryNum == entryNum) 8799 break; 8800 } 8801 if ((entryp != NULL) && 8802 ((entryp->flags & (BAM_ENTRY_BOOTADM|BAM_ENTRY_LU)) == 0)) { 8803 bam_error(DEFAULT_NOT_BAM); 8804 return (BAM_ERROR); 8805 } 8806 } 8807 8808 entryp = find_boot_entry(mp, BOOTENV_RC_TITLE, NULL, NULL, NULL, NULL, 8809 0, &entryNum); 8810 8811 if (entryp != NULL) { 8812 for (ptr = entryp->start; ptr && ptr != entryp->end; 8813 ptr = ptr->next) { 8814 if (strncmp(ptr->cmd, menu_cmds[KERNEL_CMD], 8815 sizeof (menu_cmds[KERNEL_CMD]) - 1) == 0) { 8816 kernelp = ptr; 8817 break; 8818 } 8819 } 8820 if (kernelp == NULL) { 8821 bam_error(NO_KERNEL, entryNum); 8822 return (BAM_ERROR); 8823 } 8824 8825 old_kernel_len = strcspn(kernelp->arg, " \t"); 8826 space = old_args = kernelp->arg + old_kernel_len; 8827 while ((*old_args == ' ') || (*old_args == '\t')) 8828 old_args++; 8829 } 8830 8831 if (path == NULL) { 8832 if (entryp == NULL) { 8833 BAM_DPRINTF((D_GET_SET_KERNEL_NO_RC, fcn)); 8834 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 8835 return (BAM_SUCCESS); 8836 } 8837 assert(kernelp); 8838 if (optnum == ARGS_CMD) { 8839 if (old_args[0] != '\0') { 8840 (void) strlcpy(buf, old_args, bufsize); 8841 BAM_DPRINTF((D_GET_SET_KERNEL_ARGS, fcn, buf)); 8842 } 8843 } else { 8844 /* 8845 * We need to print the kernel, so we just turn the 8846 * first space into a '\0' and print the beginning. 8847 * We don't print anything if it's the default kernel. 8848 */ 8849 old_space = *space; 8850 *space = '\0'; 8851 if (strcmp(kernelp->arg, DIRECT_BOOT_KERNEL) != 0) { 8852 (void) strlcpy(buf, kernelp->arg, bufsize); 8853 BAM_DPRINTF((D_GET_SET_KERNEL_KERN, fcn, buf)); 8854 } 8855 *space = old_space; 8856 } 8857 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 8858 return (BAM_SUCCESS); 8859 } 8860 8861 /* 8862 * First, check if we're resetting an entry to the default. 8863 */ 8864 if ((path[0] == '\0') || 8865 ((optnum == KERNEL_CMD) && 8866 (strcmp(path, DIRECT_BOOT_KERNEL) == 0))) { 8867 if ((entryp == NULL) || (kernelp == NULL)) { 8868 /* No previous entry, it's already the default */ 8869 BAM_DPRINTF((D_GET_SET_KERNEL_ALREADY, fcn)); 8870 return (BAM_SUCCESS); 8871 } 8872 8873 /* 8874 * Check if we can delete the entry. If we're resetting the 8875 * kernel command, and the args is already empty, or if we're 8876 * resetting the args command, and the kernel is already the 8877 * default, we can restore the old default and delete the entry. 8878 */ 8879 if (((optnum == KERNEL_CMD) && 8880 ((old_args == NULL) || (old_args[0] == '\0'))) || 8881 ((optnum == ARGS_CMD) && 8882 (strncmp(kernelp->arg, DIRECT_BOOT_KERNEL, 8883 sizeof (DIRECT_BOOT_KERNEL) - 1) == 0))) { 8884 kernelp = NULL; 8885 (void) delete_boot_entry(mp, entryNum, DBE_PRINTERR); 8886 restore_default_entry(mp, BAM_OLD_RC_DEF, 8887 mp->old_rc_default); 8888 mp->old_rc_default = NULL; 8889 rv = BAM_WRITE; 8890 BAM_DPRINTF((D_GET_SET_KERNEL_RESTORE_DEFAULT, fcn)); 8891 goto done; 8892 } 8893 8894 if (optnum == KERNEL_CMD) { 8895 /* 8896 * At this point, we've already checked that old_args 8897 * and entryp are valid pointers. The "+ 2" is for 8898 * a space a the string termination character. 8899 */ 8900 new_str_len = (sizeof (DIRECT_BOOT_KERNEL) - 1) + 8901 strlen(old_args) + 2; 8902 new_arg = s_calloc(1, new_str_len); 8903 (void) snprintf(new_arg, new_str_len, "%s %s", 8904 DIRECT_BOOT_KERNEL, old_args); 8905 free(kernelp->arg); 8906 kernelp->arg = new_arg; 8907 8908 /* 8909 * We have changed the kernel line, so we may need 8910 * to update the archive line as well. 8911 */ 8912 set_archive_line(entryp, kernelp); 8913 BAM_DPRINTF((D_GET_SET_KERNEL_RESET_KERNEL_SET_ARG, 8914 fcn, kernelp->arg)); 8915 } else { 8916 /* 8917 * We're resetting the boot args to nothing, so 8918 * we only need to copy the kernel. We've already 8919 * checked that the kernel is not the default. 8920 */ 8921 new_arg = s_calloc(1, old_kernel_len + 1); 8922 (void) snprintf(new_arg, old_kernel_len + 1, "%s", 8923 kernelp->arg); 8924 free(kernelp->arg); 8925 kernelp->arg = new_arg; 8926 BAM_DPRINTF((D_GET_SET_KERNEL_RESET_ARG_SET_KERNEL, 8927 fcn, kernelp->arg)); 8928 } 8929 rv = BAM_WRITE; 8930 goto done; 8931 } 8932 8933 /* 8934 * Expand the kernel file to a full path, if necessary 8935 */ 8936 if ((optnum == KERNEL_CMD) && (path[0] != '/')) { 8937 new_path = expand_path(path); 8938 if (new_path == NULL) { 8939 bam_error(UNKNOWN_KERNEL, path); 8940 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 8941 return (BAM_ERROR); 8942 } 8943 free_new_path = 1; 8944 } else { 8945 new_path = path; 8946 free_new_path = 0; 8947 } 8948 8949 /* 8950 * At this point, we know we're setting a new value. First, take care 8951 * of the case where there was no previous entry. 8952 */ 8953 if (entryp == NULL) { 8954 8955 /* Similar to code in update_temp */ 8956 fstype = get_fstype("/"); 8957 INJECT_ERROR1("GET_SET_KERNEL_FSTYPE", fstype = NULL); 8958 if (fstype == NULL) { 8959 bam_error(BOOTENV_FSTYPE_FAILED); 8960 rv = BAM_ERROR; 8961 goto done; 8962 } 8963 8964 osdev = get_special("/"); 8965 INJECT_ERROR1("GET_SET_KERNEL_SPECIAL", osdev = NULL); 8966 if (osdev == NULL) { 8967 free(fstype); 8968 bam_error(BOOTENV_SPECIAL_FAILED); 8969 rv = BAM_ERROR; 8970 goto done; 8971 } 8972 8973 sign = find_existing_sign("/", osdev, fstype); 8974 INJECT_ERROR1("GET_SET_KERNEL_SIGN", sign = NULL); 8975 if (sign == NULL) { 8976 free(fstype); 8977 free(osdev); 8978 bam_error(BOOTENV_SIGN_FAILED); 8979 rv = BAM_ERROR; 8980 goto done; 8981 } 8982 8983 free(osdev); 8984 (void) strlcpy(signbuf, sign, sizeof (signbuf)); 8985 free(sign); 8986 assert(strchr(signbuf, '(') == NULL && 8987 strchr(signbuf, ',') == NULL && 8988 strchr(signbuf, ')') == NULL); 8989 8990 if (optnum == KERNEL_CMD) { 8991 if (strcmp(fstype, "zfs") == 0) { 8992 new_str_len = strlen(new_path) + 8993 strlen(ZFS_BOOT) + 8; 8994 new_arg = s_calloc(1, new_str_len); 8995 (void) snprintf(new_arg, new_str_len, "%s %s", 8996 new_path, ZFS_BOOT); 8997 BAM_DPRINTF((D_GET_SET_KERNEL_NEW_KERN, fcn, 8998 new_arg)); 8999 entryNum = add_boot_entry(mp, BOOTENV_RC_TITLE, 9000 signbuf, new_arg, NULL, NULL, NULL); 9001 free(new_arg); 9002 } else { 9003 BAM_DPRINTF((D_GET_SET_KERNEL_NEW_KERN, fcn, 9004 new_path)); 9005 entryNum = add_boot_entry(mp, BOOTENV_RC_TITLE, 9006 signbuf, new_path, NULL, NULL, NULL); 9007 } 9008 } else { 9009 new_str_len = strlen(path) + 8; 9010 if (strcmp(fstype, "zfs") == 0) { 9011 new_str_len += strlen(DIRECT_BOOT_KERNEL_ZFS); 9012 new_arg = s_calloc(1, new_str_len); 9013 (void) snprintf(new_arg, new_str_len, "%s %s", 9014 DIRECT_BOOT_KERNEL_ZFS, path); 9015 } else { 9016 new_str_len += strlen(DIRECT_BOOT_KERNEL); 9017 new_arg = s_calloc(1, new_str_len); 9018 (void) snprintf(new_arg, new_str_len, "%s %s", 9019 DIRECT_BOOT_KERNEL, path); 9020 } 9021 9022 BAM_DPRINTF((D_GET_SET_KERNEL_NEW_ARG, fcn, new_arg)); 9023 entryNum = add_boot_entry(mp, BOOTENV_RC_TITLE, 9024 signbuf, new_arg, NULL, DIRECT_BOOT_ARCHIVE, NULL); 9025 free(new_arg); 9026 } 9027 free(fstype); 9028 INJECT_ERROR1("GET_SET_KERNEL_ADD_BOOT_ENTRY", 9029 entryNum = BAM_ERROR); 9030 if (entryNum == BAM_ERROR) { 9031 bam_error(GET_SET_KERNEL_ADD_BOOT_ENTRY, 9032 BOOTENV_RC_TITLE); 9033 rv = BAM_ERROR; 9034 goto done; 9035 } 9036 save_default_entry(mp, BAM_OLD_RC_DEF); 9037 ret = set_global(mp, menu_cmds[DEFAULT_CMD], entryNum); 9038 INJECT_ERROR1("GET_SET_KERNEL_SET_GLOBAL", ret = BAM_ERROR); 9039 if (ret == BAM_ERROR) { 9040 bam_error(GET_SET_KERNEL_SET_GLOBAL, entryNum); 9041 } 9042 rv = BAM_WRITE; 9043 goto done; 9044 } 9045 9046 /* 9047 * There was already an bootenv entry which we need to edit. 9048 */ 9049 if (optnum == KERNEL_CMD) { 9050 new_str_len = strlen(new_path) + strlen(old_args) + 2; 9051 new_arg = s_calloc(1, new_str_len); 9052 (void) snprintf(new_arg, new_str_len, "%s %s", new_path, 9053 old_args); 9054 free(kernelp->arg); 9055 kernelp->arg = new_arg; 9056 9057 /* 9058 * If we have changed the kernel line, we may need to update 9059 * the archive line as well. 9060 */ 9061 set_archive_line(entryp, kernelp); 9062 BAM_DPRINTF((D_GET_SET_KERNEL_REPLACED_KERNEL_SAME_ARG, fcn, 9063 kernelp->arg)); 9064 } else { 9065 new_str_len = old_kernel_len + strlen(path) + 8; 9066 new_arg = s_calloc(1, new_str_len); 9067 (void) strncpy(new_arg, kernelp->arg, old_kernel_len); 9068 (void) strlcat(new_arg, " ", new_str_len); 9069 (void) strlcat(new_arg, path, new_str_len); 9070 free(kernelp->arg); 9071 kernelp->arg = new_arg; 9072 BAM_DPRINTF((D_GET_SET_KERNEL_SAME_KERNEL_REPLACED_ARG, fcn, 9073 kernelp->arg)); 9074 } 9075 rv = BAM_WRITE; 9076 9077 done: 9078 if ((rv == BAM_WRITE) && kernelp) 9079 update_line(kernelp); 9080 if (free_new_path) 9081 free(new_path); 9082 if (rv == BAM_WRITE) { 9083 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 9084 } else { 9085 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 9086 } 9087 return (rv); 9088 } 9089 9090 static error_t 9091 get_kernel(menu_t *mp, menu_cmd_t optnum, char *buf, size_t bufsize) 9092 { 9093 const char *fcn = "get_kernel()"; 9094 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, menu_cmds[optnum])); 9095 return (get_set_kernel(mp, optnum, NULL, buf, bufsize)); 9096 } 9097 9098 static error_t 9099 set_kernel(menu_t *mp, menu_cmd_t optnum, char *path, char *buf, size_t bufsize) 9100 { 9101 const char *fcn = "set_kernel()"; 9102 assert(path != NULL); 9103 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, menu_cmds[optnum], path)); 9104 return (get_set_kernel(mp, optnum, path, buf, bufsize)); 9105 } 9106 9107 /*ARGSUSED*/ 9108 static error_t 9109 set_option(menu_t *mp, char *dummy, char *opt) 9110 { 9111 int optnum; 9112 int optval; 9113 char *val; 9114 char buf[BUFSIZ] = ""; 9115 error_t rv; 9116 const char *fcn = "set_option()"; 9117 9118 assert(mp); 9119 assert(opt); 9120 assert(dummy == NULL); 9121 9122 /* opt is set from bam_argv[0] and is always non-NULL */ 9123 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, opt)); 9124 9125 val = strchr(opt, '='); 9126 if (val != NULL) { 9127 *val = '\0'; 9128 } 9129 9130 if (strcmp(opt, "default") == 0) { 9131 optnum = DEFAULT_CMD; 9132 } else if (strcmp(opt, "timeout") == 0) { 9133 optnum = TIMEOUT_CMD; 9134 } else if (strcmp(opt, menu_cmds[KERNEL_CMD]) == 0) { 9135 optnum = KERNEL_CMD; 9136 } else if (strcmp(opt, menu_cmds[ARGS_CMD]) == 0) { 9137 optnum = ARGS_CMD; 9138 } else { 9139 bam_error(INVALID_OPTION, opt); 9140 return (BAM_ERROR); 9141 } 9142 9143 /* 9144 * kernel and args are allowed without "=new_value" strings. All 9145 * others cause errors 9146 */ 9147 if ((val == NULL) && (optnum != KERNEL_CMD) && (optnum != ARGS_CMD)) { 9148 bam_error(NO_OPTION_ARG, opt); 9149 return (BAM_ERROR); 9150 } else if (val != NULL) { 9151 *val = '='; 9152 } 9153 9154 if ((optnum == KERNEL_CMD) || (optnum == ARGS_CMD)) { 9155 BAM_DPRINTF((D_SET_OPTION, fcn, menu_cmds[optnum], 9156 val ? val + 1 : "NULL")); 9157 9158 if (val) 9159 rv = set_kernel(mp, optnum, val + 1, buf, sizeof (buf)); 9160 else 9161 rv = get_kernel(mp, optnum, buf, sizeof (buf)); 9162 if ((rv == BAM_SUCCESS) && (buf[0] != '\0')) 9163 (void) printf("%s\n", buf); 9164 } else { 9165 optval = s_strtol(val + 1); 9166 BAM_DPRINTF((D_SET_OPTION, fcn, menu_cmds[optnum], val + 1)); 9167 rv = set_global(mp, menu_cmds[optnum], optval); 9168 } 9169 9170 if (rv == BAM_WRITE || rv == BAM_SUCCESS) { 9171 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 9172 } else { 9173 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 9174 } 9175 9176 return (rv); 9177 } 9178 9179 /* 9180 * The quiet argument suppresses messages. This is used 9181 * when invoked in the context of other commands (e.g. list_entry) 9182 */ 9183 static error_t 9184 read_globals(menu_t *mp, char *menu_path, char *globalcmd, int quiet) 9185 { 9186 line_t *lp; 9187 char *arg; 9188 int done, ret = BAM_SUCCESS; 9189 9190 assert(mp); 9191 assert(menu_path); 9192 assert(globalcmd); 9193 9194 if (mp->start == NULL) { 9195 if (!quiet) 9196 bam_error(NO_MENU, menu_path); 9197 return (BAM_ERROR); 9198 } 9199 9200 done = 0; 9201 for (lp = mp->start; lp; lp = lp->next) { 9202 if (lp->flags != BAM_GLOBAL) 9203 continue; 9204 9205 if (lp->cmd == NULL) { 9206 if (!quiet) 9207 bam_error(NO_CMD, lp->lineNum); 9208 continue; 9209 } 9210 9211 if (strcmp(globalcmd, lp->cmd) != 0) 9212 continue; 9213 9214 /* Found global. Check for duplicates */ 9215 if (done && !quiet) { 9216 bam_error(DUP_CMD, globalcmd, lp->lineNum, bam_root); 9217 ret = BAM_ERROR; 9218 } 9219 9220 arg = lp->arg ? lp->arg : ""; 9221 bam_print(GLOBAL_CMD, globalcmd, arg); 9222 done = 1; 9223 } 9224 9225 if (!done && bam_verbose) 9226 bam_print(NO_ENTRY, globalcmd); 9227 9228 return (ret); 9229 } 9230 9231 static error_t 9232 menu_write(char *root, menu_t *mp) 9233 { 9234 const char *fcn = "menu_write()"; 9235 9236 BAM_DPRINTF((D_MENU_WRITE_ENTER, fcn, root)); 9237 return (list2file(root, MENU_TMP, GRUB_MENU, mp->start)); 9238 } 9239 9240 void 9241 line_free(line_t *lp) 9242 { 9243 if (lp == NULL) 9244 return; 9245 9246 if (lp->cmd) 9247 free(lp->cmd); 9248 if (lp->sep) 9249 free(lp->sep); 9250 if (lp->arg) 9251 free(lp->arg); 9252 if (lp->line) 9253 free(lp->line); 9254 free(lp); 9255 } 9256 9257 static void 9258 linelist_free(line_t *start) 9259 { 9260 line_t *lp; 9261 9262 while (start) { 9263 lp = start; 9264 start = start->next; 9265 line_free(lp); 9266 } 9267 } 9268 9269 static void 9270 filelist_free(filelist_t *flistp) 9271 { 9272 linelist_free(flistp->head); 9273 flistp->head = NULL; 9274 flistp->tail = NULL; 9275 } 9276 9277 static void 9278 menu_free(menu_t *mp) 9279 { 9280 entry_t *ent, *tmp; 9281 assert(mp); 9282 9283 if (mp->start) 9284 linelist_free(mp->start); 9285 ent = mp->entries; 9286 while (ent) { 9287 tmp = ent; 9288 ent = tmp->next; 9289 free(tmp); 9290 } 9291 9292 free(mp); 9293 } 9294 9295 /* 9296 * Utility routines 9297 */ 9298 9299 9300 /* 9301 * Returns 0 on success 9302 * Any other value indicates an error 9303 */ 9304 static int 9305 exec_cmd(char *cmdline, filelist_t *flistp) 9306 { 9307 char buf[BUFSIZ]; 9308 int ret; 9309 FILE *ptr; 9310 sigset_t set; 9311 void (*disp)(int); 9312 9313 /* 9314 * For security 9315 * - only absolute paths are allowed 9316 * - set IFS to space and tab 9317 */ 9318 if (*cmdline != '/') { 9319 bam_error(ABS_PATH_REQ, cmdline); 9320 return (-1); 9321 } 9322 (void) putenv("IFS= \t"); 9323 9324 /* 9325 * We may have been exec'ed with SIGCHLD blocked 9326 * unblock it here 9327 */ 9328 (void) sigemptyset(&set); 9329 (void) sigaddset(&set, SIGCHLD); 9330 if (sigprocmask(SIG_UNBLOCK, &set, NULL) != 0) { 9331 bam_error(CANT_UNBLOCK_SIGCHLD, strerror(errno)); 9332 return (-1); 9333 } 9334 9335 /* 9336 * Set SIGCHLD disposition to SIG_DFL for popen/pclose 9337 */ 9338 disp = sigset(SIGCHLD, SIG_DFL); 9339 if (disp == SIG_ERR) { 9340 bam_error(FAILED_SIG, strerror(errno)); 9341 return (-1); 9342 } 9343 if (disp == SIG_HOLD) { 9344 bam_error(BLOCKED_SIG, cmdline); 9345 return (-1); 9346 } 9347 9348 ptr = popen(cmdline, "r"); 9349 if (ptr == NULL) { 9350 bam_error(POPEN_FAIL, cmdline, strerror(errno)); 9351 return (-1); 9352 } 9353 9354 /* 9355 * If we simply do a pclose() following a popen(), pclose() 9356 * will close the reader end of the pipe immediately even 9357 * if the child process has not started/exited. pclose() 9358 * does wait for cmd to terminate before returning though. 9359 * When the executed command writes its output to the pipe 9360 * there is no reader process and the command dies with 9361 * SIGPIPE. To avoid this we read repeatedly until read 9362 * terminates with EOF. This indicates that the command 9363 * (writer) has closed the pipe and we can safely do a 9364 * pclose(). 9365 * 9366 * Since pclose() does wait for the command to exit, 9367 * we can safely reap the exit status of the command 9368 * from the value returned by pclose() 9369 */ 9370 while (s_fgets(buf, sizeof (buf), ptr) != NULL) { 9371 if (flistp == NULL) { 9372 /* s_fgets strips newlines, so insert them at the end */ 9373 bam_print(PRINT, buf); 9374 } else { 9375 append_to_flist(flistp, buf); 9376 } 9377 } 9378 9379 ret = pclose(ptr); 9380 if (ret == -1) { 9381 bam_error(PCLOSE_FAIL, cmdline, strerror(errno)); 9382 return (-1); 9383 } 9384 9385 if (WIFEXITED(ret)) { 9386 return (WEXITSTATUS(ret)); 9387 } else { 9388 bam_error(EXEC_FAIL, cmdline, ret); 9389 return (-1); 9390 } 9391 } 9392 9393 /* 9394 * Since this function returns -1 on error 9395 * it cannot be used to convert -1. However, 9396 * that is sufficient for what we need. 9397 */ 9398 static long 9399 s_strtol(char *str) 9400 { 9401 long l; 9402 char *res = NULL; 9403 9404 if (str == NULL) { 9405 return (-1); 9406 } 9407 9408 errno = 0; 9409 l = strtol(str, &res, 10); 9410 if (errno || *res != '\0') { 9411 return (-1); 9412 } 9413 9414 return (l); 9415 } 9416 9417 /* 9418 * Wrapper around fputs, that adds a newline (since fputs doesn't) 9419 */ 9420 static int 9421 s_fputs(char *str, FILE *fp) 9422 { 9423 char linebuf[BAM_MAXLINE]; 9424 9425 (void) snprintf(linebuf, sizeof (linebuf), "%s\n", str); 9426 return (fputs(linebuf, fp)); 9427 } 9428 9429 /* 9430 * Wrapper around fgets, that strips newlines returned by fgets 9431 */ 9432 char * 9433 s_fgets(char *buf, int buflen, FILE *fp) 9434 { 9435 int n; 9436 9437 buf = fgets(buf, buflen, fp); 9438 if (buf) { 9439 n = strlen(buf); 9440 if (n == buflen - 1 && buf[n-1] != '\n') 9441 bam_error(TOO_LONG, buflen - 1, buf); 9442 buf[n-1] = (buf[n-1] == '\n') ? '\0' : buf[n-1]; 9443 } 9444 9445 return (buf); 9446 } 9447 9448 void * 9449 s_calloc(size_t nelem, size_t sz) 9450 { 9451 void *ptr; 9452 9453 ptr = calloc(nelem, sz); 9454 if (ptr == NULL) { 9455 bam_error(NO_MEM, nelem*sz); 9456 bam_exit(1); 9457 } 9458 return (ptr); 9459 } 9460 9461 void * 9462 s_realloc(void *ptr, size_t sz) 9463 { 9464 ptr = realloc(ptr, sz); 9465 if (ptr == NULL) { 9466 bam_error(NO_MEM, sz); 9467 bam_exit(1); 9468 } 9469 return (ptr); 9470 } 9471 9472 char * 9473 s_strdup(char *str) 9474 { 9475 char *ptr; 9476 9477 if (str == NULL) 9478 return (NULL); 9479 9480 ptr = strdup(str); 9481 if (ptr == NULL) { 9482 bam_error(NO_MEM, strlen(str) + 1); 9483 bam_exit(1); 9484 } 9485 return (ptr); 9486 } 9487 9488 /* 9489 * Returns 1 if amd64 (or sparc, for syncing x86 diskless clients) 9490 * Returns 0 otherwise 9491 */ 9492 static int 9493 is_amd64(void) 9494 { 9495 static int amd64 = -1; 9496 char isabuf[257]; /* from sysinfo(2) manpage */ 9497 9498 if (amd64 != -1) 9499 return (amd64); 9500 9501 if (bam_alt_platform) { 9502 if (strcmp(bam_platform, "i86pc") == 0) { 9503 amd64 = 1; /* diskless server */ 9504 } 9505 } else { 9506 if (sysinfo(SI_ISALIST, isabuf, sizeof (isabuf)) > 0 && 9507 strncmp(isabuf, "amd64 ", strlen("amd64 ")) == 0) { 9508 amd64 = 1; 9509 } else if (strstr(isabuf, "i386") == NULL) { 9510 amd64 = 1; /* diskless server */ 9511 } 9512 } 9513 if (amd64 == -1) 9514 amd64 = 0; 9515 9516 return (amd64); 9517 } 9518 9519 static char * 9520 get_machine(void) 9521 { 9522 static int cached = -1; 9523 static char mbuf[257]; /* from sysinfo(2) manpage */ 9524 9525 if (cached == 0) 9526 return (mbuf); 9527 9528 if (bam_alt_platform) { 9529 return (bam_platform); 9530 } else { 9531 if (sysinfo(SI_MACHINE, mbuf, sizeof (mbuf)) > 0) { 9532 cached = 1; 9533 } 9534 } 9535 if (cached == -1) { 9536 mbuf[0] = '\0'; 9537 cached = 0; 9538 } 9539 9540 return (mbuf); 9541 } 9542 9543 int 9544 is_sparc(void) 9545 { 9546 static int issparc = -1; 9547 char mbuf[257]; /* from sysinfo(2) manpage */ 9548 9549 if (issparc != -1) 9550 return (issparc); 9551 9552 if (bam_alt_platform) { 9553 if (strncmp(bam_platform, "sun4", 4) == 0) { 9554 issparc = 1; 9555 } 9556 } else { 9557 if (sysinfo(SI_ARCHITECTURE, mbuf, sizeof (mbuf)) > 0 && 9558 strcmp(mbuf, "sparc") == 0) { 9559 issparc = 1; 9560 } 9561 } 9562 if (issparc == -1) 9563 issparc = 0; 9564 9565 return (issparc); 9566 } 9567 9568 static void 9569 append_to_flist(filelist_t *flistp, char *s) 9570 { 9571 line_t *lp; 9572 9573 lp = s_calloc(1, sizeof (line_t)); 9574 lp->line = s_strdup(s); 9575 if (flistp->head == NULL) 9576 flistp->head = lp; 9577 else 9578 flistp->tail->next = lp; 9579 flistp->tail = lp; 9580 } 9581 9582 #if !defined(_OPB) 9583 9584 UCODE_VENDORS; 9585 9586 /*ARGSUSED*/ 9587 static void 9588 ucode_install(char *root) 9589 { 9590 int i; 9591 9592 for (i = 0; ucode_vendors[i].filestr != NULL; i++) { 9593 int cmd_len = PATH_MAX + 256; 9594 char cmd[PATH_MAX + 256]; 9595 char file[PATH_MAX]; 9596 char timestamp[PATH_MAX]; 9597 struct stat fstatus, tstatus; 9598 struct utimbuf u_times; 9599 9600 (void) snprintf(file, PATH_MAX, "%s/%s/%s-ucode.%s", 9601 bam_root, UCODE_INSTALL_PATH, ucode_vendors[i].filestr, 9602 ucode_vendors[i].extstr); 9603 9604 if (stat(file, &fstatus) != 0 || !(S_ISREG(fstatus.st_mode))) 9605 continue; 9606 9607 (void) snprintf(timestamp, PATH_MAX, "%s.ts", file); 9608 9609 if (stat(timestamp, &tstatus) == 0 && 9610 fstatus.st_mtime <= tstatus.st_mtime) 9611 continue; 9612 9613 (void) snprintf(cmd, cmd_len, "/usr/sbin/ucodeadm -i -R " 9614 "%s/%s/%s %s > /dev/null 2>&1", bam_root, 9615 UCODE_INSTALL_PATH, ucode_vendors[i].vendorstr, file); 9616 if (system(cmd) != 0) 9617 return; 9618 9619 if (creat(timestamp, S_IRUSR | S_IWUSR) == -1) 9620 return; 9621 9622 u_times.actime = fstatus.st_atime; 9623 u_times.modtime = fstatus.st_mtime; 9624 (void) utime(timestamp, &u_times); 9625 } 9626 } 9627 #endif 9628