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 2010 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 (lp->cmd != NULL && 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. Do not stop the boot process, but trigger an update 2782 * of the archives (which will recreate filestat.ramdisk). 2783 */ 2784 if (bam_smf_check) { 2785 (void) snprintf(path, sizeof (path), "%s%s", root, FILE_STAT); 2786 if (stat(path, &sb) != 0) { 2787 (void) creat(NEED_UPDATE_FILE, 0644); 2788 return (0); 2789 } 2790 } 2791 2792 getoldstat(root); 2793 2794 /* 2795 * Check if the archive contains files that are no longer 2796 * present on the root filesystem. 2797 */ 2798 check4stale(root); 2799 2800 /* 2801 * read list of files 2802 */ 2803 if (read_list(root, flistp) != BAM_SUCCESS) { 2804 clear_walk_args(); 2805 return (BAM_ERROR); 2806 } 2807 2808 assert(flistp->head && flistp->tail); 2809 2810 /* 2811 * At this point either the update is required 2812 * or the decision is pending. In either case 2813 * we need to create new stat nvlist 2814 */ 2815 create_newstat(); 2816 /* 2817 * This walk does 2 things: 2818 * - gets new stat data for every file 2819 * - (optional) compare old and new stat data 2820 */ 2821 ret = walk_list(root, &flist); 2822 2823 /* done with the file list */ 2824 filelist_free(flistp); 2825 2826 /* something went wrong */ 2827 2828 if (ret == BAM_ERROR) { 2829 bam_error(CACHE_FAIL); 2830 return (BAM_ERROR); 2831 } 2832 2833 if (walk_arg.new_nvlp == NULL) { 2834 if (walk_arg.sparcfile != NULL) 2835 (void) fclose(walk_arg.sparcfile); 2836 bam_error(NO_NEW_STAT); 2837 } 2838 2839 /* If nothing was updated, discard newstat. */ 2840 2841 if (!is_dir_flag_on(FILE32, NEED_UPDATE) && 2842 !is_dir_flag_on(FILE64, NEED_UPDATE)) { 2843 clear_walk_args(); 2844 return (0); 2845 } 2846 2847 if (walk_arg.sparcfile != NULL) 2848 (void) fclose(walk_arg.sparcfile); 2849 2850 return (1); 2851 } 2852 2853 static int 2854 flushfs(char *root) 2855 { 2856 char cmd[PATH_MAX + 30]; 2857 2858 (void) snprintf(cmd, sizeof (cmd), "%s -f \"%s\" 2>/dev/null", 2859 LOCKFS_PATH, root); 2860 2861 return (exec_cmd(cmd, NULL)); 2862 } 2863 2864 static int 2865 do_archive_copy(char *source, char *dest) 2866 { 2867 2868 sync(); 2869 2870 /* the equivalent of mv archive-new-$pid boot_archive */ 2871 if (rename(source, dest) != 0) { 2872 (void) unlink(source); 2873 return (BAM_ERROR); 2874 } 2875 2876 if (flushfs(bam_root) != 0) 2877 sync(); 2878 2879 return (BAM_SUCCESS); 2880 } 2881 2882 static int 2883 check_cmdline(filelist_t flist) 2884 { 2885 line_t *lp; 2886 2887 for (lp = flist.head; lp; lp = lp->next) { 2888 if (strstr(lp->line, "Error:") != NULL || 2889 strstr(lp->line, "Inode number overflow") != NULL) { 2890 (void) fprintf(stderr, "%s\n", lp->line); 2891 return (BAM_ERROR); 2892 } 2893 } 2894 2895 return (BAM_SUCCESS); 2896 } 2897 2898 static void 2899 dump_errormsg(filelist_t flist) 2900 { 2901 line_t *lp; 2902 2903 for (lp = flist.head; lp; lp = lp->next) 2904 (void) fprintf(stderr, "%s\n", lp->line); 2905 } 2906 2907 static int 2908 check_archive(char *dest) 2909 { 2910 struct stat sb; 2911 2912 if (stat(dest, &sb) != 0 || !S_ISREG(sb.st_mode) || 2913 sb.st_size < 10000) { 2914 bam_error(ARCHIVE_BAD, dest); 2915 (void) unlink(dest); 2916 return (BAM_ERROR); 2917 } 2918 2919 return (BAM_SUCCESS); 2920 } 2921 2922 /* 2923 * Returns 1 if mkiso is in the expected PATH, 0 otherwise 2924 */ 2925 static int 2926 is_mkisofs() 2927 { 2928 if (access(MKISOFS_PATH, X_OK) == 0) 2929 return (1); 2930 return (0); 2931 } 2932 2933 #define MKISO_PARAMS " -quiet -graft-points -dlrDJN -relaxed-filenames " 2934 2935 static int 2936 create_sparc_archive(char *archive, char *tempname, char *bootblk, char *list) 2937 { 2938 int ret; 2939 char cmdline[3 * PATH_MAX + 64]; 2940 filelist_t flist = {0}; 2941 const char *func = "create_sparc_archive()"; 2942 2943 if (access(bootblk, R_OK) == 1) { 2944 bam_error(BOOTBLK_FAIL, bootblk); 2945 return (BAM_ERROR); 2946 } 2947 2948 /* 2949 * Prepare mkisofs command line and execute it 2950 */ 2951 (void) snprintf(cmdline, sizeof (cmdline), "%s %s -G %s -o \"%s\" " 2952 "-path-list \"%s\" 2>&1", MKISOFS_PATH, MKISO_PARAMS, bootblk, 2953 tempname, list); 2954 2955 BAM_DPRINTF((D_CMDLINE, func, cmdline)); 2956 2957 ret = exec_cmd(cmdline, &flist); 2958 if (ret != 0 || check_cmdline(flist) == BAM_ERROR) { 2959 dump_errormsg(flist); 2960 goto out_err; 2961 } 2962 2963 filelist_free(&flist); 2964 2965 /* 2966 * Prepare dd command line to copy the bootblk on the new archive and 2967 * execute it 2968 */ 2969 (void) snprintf(cmdline, sizeof (cmdline), "%s if=\"%s\" of=\"%s\"" 2970 " bs=1b oseek=1 count=15 conv=notrunc conv=sync 2>&1", DD_PATH_USR, 2971 bootblk, tempname); 2972 2973 BAM_DPRINTF((D_CMDLINE, func, cmdline)); 2974 2975 ret = exec_cmd(cmdline, &flist); 2976 if (ret != 0 || check_cmdline(flist) == BAM_ERROR) 2977 goto out_err; 2978 2979 filelist_free(&flist); 2980 2981 /* Did we get a valid archive ? */ 2982 if (check_archive(tempname) == BAM_ERROR) 2983 return (BAM_ERROR); 2984 2985 return (do_archive_copy(tempname, archive)); 2986 2987 out_err: 2988 filelist_free(&flist); 2989 bam_error(ARCHIVE_FAIL, cmdline); 2990 (void) unlink(tempname); 2991 return (BAM_ERROR); 2992 } 2993 2994 static unsigned int 2995 from_733(unsigned char *s) 2996 { 2997 int i; 2998 unsigned int ret = 0; 2999 3000 for (i = 0; i < 4; i++) 3001 ret |= s[i] << (8 * i); 3002 3003 return (ret); 3004 } 3005 3006 static void 3007 to_733(unsigned char *s, unsigned int val) 3008 { 3009 int i; 3010 3011 for (i = 0; i < 4; i++) 3012 s[i] = s[7-i] = (val >> (8 * i)) & 0xFF; 3013 } 3014 3015 /* 3016 * Extends the current boot archive without recreating it from scratch 3017 */ 3018 static int 3019 extend_iso_archive(char *archive, char *tempname, char *update_dir) 3020 { 3021 int fd = -1, newfd = -1, ret, i; 3022 int next_session = 0, new_size = 0; 3023 char cmdline[3 * PATH_MAX + 64]; 3024 const char *func = "extend_iso_archive()"; 3025 filelist_t flist = {0}; 3026 struct iso_pdesc saved_desc[MAX_IVDs]; 3027 3028 fd = open(archive, O_RDWR); 3029 if (fd == -1) { 3030 if (bam_verbose) 3031 bam_error(OPEN_FAIL, archive, strerror(errno)); 3032 goto out_err; 3033 } 3034 3035 /* 3036 * A partial read is likely due to a corrupted file 3037 */ 3038 ret = pread64(fd, saved_desc, sizeof (saved_desc), 3039 VOLDESC_OFF * CD_BLOCK); 3040 if (ret != sizeof (saved_desc)) { 3041 if (bam_verbose) 3042 bam_error(READ_FAIL, archive, strerror(errno)); 3043 goto out_err; 3044 } 3045 3046 if (memcmp(saved_desc[0].type, "\1CD001", 6)) { 3047 if (bam_verbose) 3048 bam_error(SIGN_FAIL, archive); 3049 goto out_err; 3050 } 3051 3052 /* 3053 * Read primary descriptor and locate next_session offset (it should 3054 * point to the end of the archive) 3055 */ 3056 next_session = P2ROUNDUP(from_733(saved_desc[0].volume_space_size), 16); 3057 3058 (void) snprintf(cmdline, sizeof (cmdline), "%s -C 16,%d -M %s %s -o \"" 3059 "%s\" \"%s\" 2>&1", MKISOFS_PATH, next_session, archive, 3060 MKISO_PARAMS, tempname, update_dir); 3061 3062 BAM_DPRINTF((D_CMDLINE, func, cmdline)); 3063 3064 ret = exec_cmd(cmdline, &flist); 3065 if (ret != 0 || check_cmdline(flist) == BAM_ERROR) { 3066 if (bam_verbose) { 3067 bam_error(MULTI_FAIL, cmdline); 3068 dump_errormsg(flist); 3069 } 3070 goto out_flist_err; 3071 } 3072 filelist_free(&flist); 3073 3074 newfd = open(tempname, O_RDONLY); 3075 if (newfd == -1) { 3076 if (bam_verbose) 3077 bam_error(OPEN_FAIL, archive, strerror(errno)); 3078 goto out_err; 3079 } 3080 3081 ret = pread64(newfd, saved_desc, sizeof (saved_desc), 3082 VOLDESC_OFF * CD_BLOCK); 3083 if (ret != sizeof (saved_desc)) { 3084 if (bam_verbose) 3085 bam_error(READ_FAIL, archive, strerror(errno)); 3086 goto out_err; 3087 } 3088 3089 if (memcmp(saved_desc[0].type, "\1CD001", 6)) { 3090 if (bam_verbose) 3091 bam_error(SIGN_FAIL, archive); 3092 goto out_err; 3093 } 3094 3095 new_size = from_733(saved_desc[0].volume_space_size) + next_session; 3096 to_733(saved_desc[0].volume_space_size, new_size); 3097 3098 for (i = 1; i < MAX_IVDs; i++) { 3099 if (saved_desc[i].type[0] == (unsigned char)255) 3100 break; 3101 if (memcmp(saved_desc[i].id, "CD001", 5)) 3102 break; 3103 3104 if (bam_verbose) 3105 bam_print("%s: Updating descriptor entry [%d]\n", func, 3106 i); 3107 3108 to_733(saved_desc[i].volume_space_size, new_size); 3109 } 3110 3111 ret = pwrite64(fd, saved_desc, DVD_BLOCK, VOLDESC_OFF*CD_BLOCK); 3112 if (ret != DVD_BLOCK) { 3113 if (bam_verbose) 3114 bam_error(WRITE_FAIL, archive, strerror(errno)); 3115 goto out_err; 3116 } 3117 (void) close(newfd); 3118 newfd = -1; 3119 3120 ret = fsync(fd); 3121 if (ret != 0) 3122 sync(); 3123 3124 ret = close(fd); 3125 if (ret != 0) { 3126 if (bam_verbose) 3127 bam_error(CLOSE_FAIL, archive, strerror(errno)); 3128 return (BAM_ERROR); 3129 } 3130 fd = -1; 3131 3132 (void) snprintf(cmdline, sizeof (cmdline), "%s if=%s of=%s bs=32k " 3133 "seek=%d conv=sync 2>&1", DD_PATH_USR, tempname, archive, 3134 (next_session/16)); 3135 3136 BAM_DPRINTF((D_CMDLINE, func, cmdline)); 3137 3138 ret = exec_cmd(cmdline, &flist); 3139 if (ret != 0 || check_cmdline(flist) == BAM_ERROR) { 3140 if (bam_verbose) 3141 bam_error(MULTI_FAIL, cmdline); 3142 goto out_flist_err; 3143 } 3144 filelist_free(&flist); 3145 3146 (void) unlink(tempname); 3147 3148 if (flushfs(bam_root) != 0) 3149 sync(); 3150 3151 if (bam_verbose) 3152 bam_print("boot archive updated successfully\n"); 3153 3154 return (BAM_SUCCESS); 3155 3156 out_flist_err: 3157 filelist_free(&flist); 3158 out_err: 3159 if (fd != -1) 3160 (void) close(fd); 3161 if (newfd != -1) 3162 (void) close(newfd); 3163 return (BAM_ERROR); 3164 } 3165 3166 static int 3167 create_x86_archive(char *archive, char *tempname, char *update_dir) 3168 { 3169 int ret; 3170 char cmdline[3 * PATH_MAX + 64]; 3171 filelist_t flist = {0}; 3172 const char *func = "create_x86_archive()"; 3173 3174 (void) snprintf(cmdline, sizeof (cmdline), "%s %s -o \"%s\" \"%s\" " 3175 "2>&1", MKISOFS_PATH, MKISO_PARAMS, tempname, update_dir); 3176 3177 BAM_DPRINTF((D_CMDLINE, func, cmdline)); 3178 3179 ret = exec_cmd(cmdline, &flist); 3180 if (ret != 0 || check_cmdline(flist) == BAM_ERROR) { 3181 bam_error(ARCHIVE_FAIL, cmdline); 3182 dump_errormsg(flist); 3183 filelist_free(&flist); 3184 (void) unlink(tempname); 3185 return (BAM_ERROR); 3186 } 3187 3188 filelist_free(&flist); 3189 3190 if (check_archive(tempname) == BAM_ERROR) 3191 return (BAM_ERROR); 3192 3193 return (do_archive_copy(tempname, archive)); 3194 } 3195 3196 static int 3197 mkisofs_archive(char *root, int what) 3198 { 3199 int ret; 3200 char temp[PATH_MAX]; 3201 char bootblk[PATH_MAX]; 3202 char boot_archive[PATH_MAX]; 3203 3204 if (what == FILE64 && !is_flag_on(IS_SPARC_TARGET)) 3205 ret = snprintf(temp, sizeof (temp), 3206 "%s%s%s/amd64/archive-new-%d", root, ARCHIVE_PREFIX, 3207 get_machine(), getpid()); 3208 else 3209 ret = snprintf(temp, sizeof (temp), "%s%s%s/archive-new-%d", 3210 root, ARCHIVE_PREFIX, get_machine(), getpid()); 3211 3212 if (ret >= sizeof (temp)) 3213 goto out_path_err; 3214 3215 if (what == FILE64 && !is_flag_on(IS_SPARC_TARGET)) 3216 ret = snprintf(boot_archive, sizeof (boot_archive), 3217 "%s%s%s/amd64%s", root, ARCHIVE_PREFIX, get_machine(), 3218 ARCHIVE_SUFFIX); 3219 else 3220 ret = snprintf(boot_archive, sizeof (boot_archive), 3221 "%s%s%s%s", root, ARCHIVE_PREFIX, get_machine(), 3222 ARCHIVE_SUFFIX); 3223 3224 if (ret >= sizeof (boot_archive)) 3225 goto out_path_err; 3226 3227 bam_print("updating %s\n", boot_archive); 3228 3229 if (is_flag_on(IS_SPARC_TARGET)) { 3230 ret = snprintf(bootblk, sizeof (bootblk), 3231 "%s/platform/%s/lib/fs/hsfs/bootblk", root, get_machine()); 3232 if (ret >= sizeof (bootblk)) 3233 goto out_path_err; 3234 3235 ret = create_sparc_archive(boot_archive, temp, bootblk, 3236 get_cachedir(what)); 3237 } else { 3238 if (!is_dir_flag_on(what, NO_MULTI)) { 3239 if (bam_verbose) 3240 bam_print("Attempting to extend x86 archive: " 3241 "%s\n", boot_archive); 3242 3243 ret = extend_iso_archive(boot_archive, temp, 3244 get_updatedir(what)); 3245 if (ret == BAM_SUCCESS) { 3246 if (bam_verbose) 3247 bam_print("Successfully extended %s\n", 3248 boot_archive); 3249 3250 (void) rmdir_r(get_updatedir(what)); 3251 return (BAM_SUCCESS); 3252 } 3253 } 3254 /* 3255 * The boot archive will be recreated from scratch. We get here 3256 * if at least one of these conditions is true: 3257 * - bootadm was called without the -e switch 3258 * - the archive (or the archive cache) doesn't exist 3259 * - archive size is bigger than BA_SIZE_MAX 3260 * - more than COUNT_MAX files need to be updated 3261 * - an error occourred either populating the /updates directory 3262 * or extend_iso_archive() failed 3263 */ 3264 if (bam_verbose) 3265 bam_print("Unable to extend %s... rebuilding archive\n", 3266 boot_archive); 3267 3268 if (get_updatedir(what)[0] != '\0') 3269 (void) rmdir_r(get_updatedir(what)); 3270 3271 3272 ret = create_x86_archive(boot_archive, temp, 3273 get_cachedir(what)); 3274 } 3275 3276 if (ret == BAM_SUCCESS && bam_verbose) 3277 bam_print("Successfully created %s\n", boot_archive); 3278 3279 return (ret); 3280 3281 out_path_err: 3282 bam_error(PATH_TOO_LONG, root); 3283 return (BAM_ERROR); 3284 } 3285 3286 static error_t 3287 create_ramdisk(char *root) 3288 { 3289 char *cmdline, path[PATH_MAX]; 3290 size_t len; 3291 struct stat sb; 3292 int ret, what, status = BAM_SUCCESS; 3293 3294 /* If there is mkisofs, use it to create the required archives */ 3295 if (is_mkisofs()) { 3296 for (what = FILE32; what < CACHEDIR_NUM; what++) { 3297 if (has_cachedir(what) && is_dir_flag_on(what, 3298 NEED_UPDATE)) { 3299 ret = mkisofs_archive(root, what); 3300 if (ret != 0) 3301 status = BAM_ERROR; 3302 } 3303 } 3304 return (status); 3305 } 3306 3307 /* 3308 * Else setup command args for create_ramdisk.ksh for the UFS archives 3309 */ 3310 if (bam_verbose) 3311 bam_print("mkisofs not found, creating UFS archive\n"); 3312 3313 (void) snprintf(path, sizeof (path), "%s/%s", root, CREATE_RAMDISK); 3314 if (stat(path, &sb) != 0) { 3315 bam_error(ARCH_EXEC_MISS, path, strerror(errno)); 3316 return (BAM_ERROR); 3317 } 3318 3319 if (is_safe_exec(path) == BAM_ERROR) 3320 return (BAM_ERROR); 3321 3322 len = strlen(path) + strlen(root) + 10; /* room for space + -R */ 3323 if (bam_alt_platform) 3324 len += strlen(bam_platform) + strlen("-p "); 3325 cmdline = s_calloc(1, len); 3326 3327 if (bam_alt_platform) { 3328 assert(strlen(root) > 1); 3329 (void) snprintf(cmdline, len, "%s -p %s -R %s", 3330 path, bam_platform, root); 3331 /* chop off / at the end */ 3332 cmdline[strlen(cmdline) - 1] = '\0'; 3333 } else if (strlen(root) > 1) { 3334 (void) snprintf(cmdline, len, "%s -R %s", path, root); 3335 /* chop off / at the end */ 3336 cmdline[strlen(cmdline) - 1] = '\0'; 3337 } else 3338 (void) snprintf(cmdline, len, "%s", path); 3339 3340 if (exec_cmd(cmdline, NULL) != 0) { 3341 bam_error(ARCHIVE_FAIL, cmdline); 3342 free(cmdline); 3343 return (BAM_ERROR); 3344 } 3345 free(cmdline); 3346 /* 3347 * The existence of the expected archives used to be 3348 * verified here. This check is done in create_ramdisk as 3349 * it needs to be in sync with the altroot operated upon. 3350 */ 3351 return (BAM_SUCCESS); 3352 } 3353 3354 /* 3355 * Checks if target filesystem is on a ramdisk 3356 * 1 - is miniroot 3357 * 0 - is not 3358 * When in doubt assume it is not a ramdisk. 3359 */ 3360 static int 3361 is_ramdisk(char *root) 3362 { 3363 struct extmnttab mnt; 3364 FILE *fp; 3365 int found; 3366 char mntpt[PATH_MAX]; 3367 char *cp; 3368 3369 /* 3370 * There are 3 situations where creating archive is 3371 * of dubious value: 3372 * - create boot_archive on a lofi-mounted boot_archive 3373 * - create it on a ramdisk which is the root filesystem 3374 * - create it on a ramdisk mounted somewhere else 3375 * The first is not easy to detect and checking for it is not 3376 * worth it. 3377 * The other two conditions are handled here 3378 */ 3379 fp = fopen(MNTTAB, "r"); 3380 if (fp == NULL) { 3381 bam_error(OPEN_FAIL, MNTTAB, strerror(errno)); 3382 return (0); 3383 } 3384 3385 resetmnttab(fp); 3386 3387 /* 3388 * Remove any trailing / from the mount point 3389 */ 3390 (void) strlcpy(mntpt, root, sizeof (mntpt)); 3391 if (strcmp(root, "/") != 0) { 3392 cp = mntpt + strlen(mntpt) - 1; 3393 if (*cp == '/') 3394 *cp = '\0'; 3395 } 3396 found = 0; 3397 while (getextmntent(fp, &mnt, sizeof (mnt)) == 0) { 3398 if (strcmp(mnt.mnt_mountp, mntpt) == 0) { 3399 found = 1; 3400 break; 3401 } 3402 } 3403 3404 if (!found) { 3405 if (bam_verbose) 3406 bam_error(NOT_IN_MNTTAB, mntpt); 3407 (void) fclose(fp); 3408 return (0); 3409 } 3410 3411 if (strstr(mnt.mnt_special, RAMDISK_SPECIAL) != NULL) { 3412 if (bam_verbose) 3413 bam_error(IS_RAMDISK, bam_root); 3414 (void) fclose(fp); 3415 return (1); 3416 } 3417 3418 (void) fclose(fp); 3419 3420 return (0); 3421 } 3422 3423 static int 3424 is_boot_archive(char *root) 3425 { 3426 char path[PATH_MAX]; 3427 struct stat sb; 3428 int error; 3429 const char *fcn = "is_boot_archive()"; 3430 3431 /* 3432 * We can't create an archive without the create_ramdisk script 3433 */ 3434 (void) snprintf(path, sizeof (path), "%s/%s", root, CREATE_RAMDISK); 3435 error = stat(path, &sb); 3436 INJECT_ERROR1("NOT_ARCHIVE_BASED", error = -1); 3437 if (error == -1) { 3438 if (bam_verbose) 3439 bam_print(FILE_MISS, path); 3440 BAM_DPRINTF((D_NOT_ARCHIVE_BOOT, fcn, root)); 3441 return (0); 3442 } 3443 3444 BAM_DPRINTF((D_IS_ARCHIVE_BOOT, fcn, root)); 3445 return (1); 3446 } 3447 3448 /* 3449 * Need to call this for anything that operates on the GRUB menu 3450 * In the x86 live upgrade case the directory /boot/grub may be present 3451 * even on pre-newboot BEs. The authoritative way to check for a GRUB target 3452 * is to check for the presence of the stage2 binary which is present 3453 * only on GRUB targets (even on x86 boot partitions). Checking for the 3454 * presence of the multiboot binary is not correct as it is not present 3455 * on x86 boot partitions. 3456 */ 3457 int 3458 is_grub(const char *root) 3459 { 3460 char path[PATH_MAX]; 3461 struct stat sb; 3462 const char *fcn = "is_grub()"; 3463 3464 (void) snprintf(path, sizeof (path), "%s%s", root, GRUB_STAGE2); 3465 if (stat(path, &sb) == -1) { 3466 BAM_DPRINTF((D_NO_GRUB_DIR, fcn, path)); 3467 return (0); 3468 } 3469 3470 return (1); 3471 } 3472 3473 static int 3474 is_zfs(char *root) 3475 { 3476 struct statvfs vfs; 3477 int ret; 3478 const char *fcn = "is_zfs()"; 3479 3480 ret = statvfs(root, &vfs); 3481 INJECT_ERROR1("STATVFS_ZFS", ret = 1); 3482 if (ret != 0) { 3483 bam_error(STATVFS_FAIL, root, strerror(errno)); 3484 return (0); 3485 } 3486 3487 if (strncmp(vfs.f_basetype, "zfs", strlen("zfs")) == 0) { 3488 BAM_DPRINTF((D_IS_ZFS, fcn, root)); 3489 return (1); 3490 } else { 3491 BAM_DPRINTF((D_IS_NOT_ZFS, fcn, root)); 3492 return (0); 3493 } 3494 } 3495 3496 static int 3497 is_ufs(char *root) 3498 { 3499 struct statvfs vfs; 3500 int ret; 3501 const char *fcn = "is_ufs()"; 3502 3503 ret = statvfs(root, &vfs); 3504 INJECT_ERROR1("STATVFS_UFS", ret = 1); 3505 if (ret != 0) { 3506 bam_error(STATVFS_FAIL, root, strerror(errno)); 3507 return (0); 3508 } 3509 3510 if (strncmp(vfs.f_basetype, "ufs", strlen("ufs")) == 0) { 3511 BAM_DPRINTF((D_IS_UFS, fcn, root)); 3512 return (1); 3513 } else { 3514 BAM_DPRINTF((D_IS_NOT_UFS, fcn, root)); 3515 return (0); 3516 } 3517 } 3518 3519 static int 3520 is_pcfs(char *root) 3521 { 3522 struct statvfs vfs; 3523 int ret; 3524 const char *fcn = "is_pcfs()"; 3525 3526 ret = statvfs(root, &vfs); 3527 INJECT_ERROR1("STATVFS_PCFS", ret = 1); 3528 if (ret != 0) { 3529 bam_error(STATVFS_FAIL, root, strerror(errno)); 3530 return (0); 3531 } 3532 3533 if (strncmp(vfs.f_basetype, "pcfs", strlen("pcfs")) == 0) { 3534 BAM_DPRINTF((D_IS_PCFS, fcn, root)); 3535 return (1); 3536 } else { 3537 BAM_DPRINTF((D_IS_NOT_PCFS, fcn, root)); 3538 return (0); 3539 } 3540 } 3541 3542 static int 3543 is_readonly(char *root) 3544 { 3545 int fd; 3546 int error; 3547 char testfile[PATH_MAX]; 3548 const char *fcn = "is_readonly()"; 3549 3550 /* 3551 * Using statvfs() to check for a read-only filesystem is not 3552 * reliable. The only way to reliably test is to attempt to 3553 * create a file 3554 */ 3555 (void) snprintf(testfile, sizeof (testfile), "%s/%s.%d", 3556 root, BOOTADM_RDONLY_TEST, getpid()); 3557 3558 (void) unlink(testfile); 3559 3560 errno = 0; 3561 fd = open(testfile, O_RDWR|O_CREAT|O_EXCL, 0644); 3562 error = errno; 3563 INJECT_ERROR2("RDONLY_TEST_ERROR", fd = -1, error = EACCES); 3564 if (fd == -1 && error == EROFS) { 3565 BAM_DPRINTF((D_RDONLY_FS, fcn, root)); 3566 return (1); 3567 } else if (fd == -1) { 3568 bam_error(RDONLY_TEST_ERROR, root, strerror(error)); 3569 } 3570 3571 (void) close(fd); 3572 (void) unlink(testfile); 3573 3574 BAM_DPRINTF((D_RDWR_FS, fcn, root)); 3575 return (0); 3576 } 3577 3578 static error_t 3579 update_archive(char *root, char *opt) 3580 { 3581 error_t ret; 3582 3583 assert(root); 3584 assert(opt == NULL); 3585 3586 init_walk_args(); 3587 (void) umask(022); 3588 3589 /* 3590 * root must belong to a boot archive based OS, 3591 */ 3592 if (!is_boot_archive(root)) { 3593 /* 3594 * Emit message only if not in context of update_all. 3595 * If in update_all, emit only if verbose flag is set. 3596 */ 3597 if (!bam_update_all || bam_verbose) 3598 bam_print(NOT_ARCHIVE_BOOT, root); 3599 return (BAM_ERROR); 3600 } 3601 3602 /* 3603 * If smf check is requested when / is writable (can happen 3604 * on first reboot following an upgrade because service 3605 * dependency is messed up), skip the check. 3606 */ 3607 if (bam_smf_check && !bam_root_readonly && !is_zfs(root)) 3608 return (BAM_SUCCESS); 3609 3610 /* 3611 * Don't generate archive on ramdisk. 3612 */ 3613 if (is_ramdisk(root)) 3614 return (BAM_SUCCESS); 3615 3616 /* 3617 * root must be writable. This check applies to alternate 3618 * root (-R option); bam_root_readonly applies to '/' only. 3619 * The behaviour translates into being the one of a 'check'. 3620 */ 3621 if (!bam_smf_check && !bam_check && is_readonly(root)) { 3622 set_flag(RDONLY_FSCHK); 3623 bam_check = 1; 3624 } 3625 3626 /* 3627 * Now check if an update is really needed. 3628 */ 3629 ret = update_required(root); 3630 3631 /* 3632 * The check command (-n) is *not* a dry run. 3633 * It only checks if the archive is in sync. 3634 * A readonly filesystem has to be considered an error only if an update 3635 * is required. 3636 */ 3637 if (bam_nowrite()) { 3638 if (is_flag_on(RDONLY_FSCHK)) { 3639 bam_check = bam_saved_check; 3640 if (ret > 0) 3641 bam_error(RDONLY_FS, root); 3642 if (bam_update_all) 3643 return ((ret != 0) ? BAM_ERROR : BAM_SUCCESS); 3644 } 3645 3646 bam_exit((ret != 0) ? 1 : 0); 3647 } 3648 3649 if (ret == 1) { 3650 /* create the ramdisk */ 3651 ret = create_ramdisk(root); 3652 } 3653 3654 /* 3655 * if the archive is updated, save the new stat data and update the 3656 * timestamp file 3657 */ 3658 if (ret == 0 && walk_arg.new_nvlp != NULL) { 3659 savenew(root); 3660 update_timestamp(root); 3661 } 3662 3663 clear_walk_args(); 3664 3665 return (ret); 3666 } 3667 3668 static char * 3669 find_root_pool() 3670 { 3671 char *special = get_special("/"); 3672 char *p; 3673 3674 if (special == NULL) 3675 return (NULL); 3676 3677 if (*special == '/') { 3678 free(special); 3679 return (NULL); 3680 } 3681 3682 if ((p = strchr(special, '/')) != NULL) 3683 *p = '\0'; 3684 3685 return (special); 3686 } 3687 3688 static error_t 3689 synchronize_BE_menu(void) 3690 { 3691 struct stat sb; 3692 char cmdline[PATH_MAX]; 3693 char cksum_line[PATH_MAX]; 3694 filelist_t flist = {0}; 3695 char *old_cksum_str; 3696 char *old_size_str; 3697 char *old_file; 3698 char *curr_cksum_str; 3699 char *curr_size_str; 3700 char *curr_file; 3701 char *pool; 3702 FILE *cfp; 3703 int found; 3704 int ret; 3705 const char *fcn = "synchronize_BE_menu()"; 3706 3707 BAM_DPRINTF((D_FUNC_ENTRY0, fcn)); 3708 3709 /* Check if findroot enabled LU BE */ 3710 if (stat(FINDROOT_INSTALLGRUB, &sb) != 0) { 3711 BAM_DPRINTF((D_NOT_LU_BE, fcn)); 3712 return (BAM_SUCCESS); 3713 } 3714 3715 if (stat(LU_MENU_CKSUM, &sb) != 0) { 3716 BAM_DPRINTF((D_NO_CKSUM_FILE, fcn, LU_MENU_CKSUM)); 3717 goto menu_sync; 3718 } 3719 3720 cfp = fopen(LU_MENU_CKSUM, "r"); 3721 INJECT_ERROR1("CKSUM_FILE_MISSING", cfp = NULL); 3722 if (cfp == NULL) { 3723 bam_error(CANNOT_READ_LU_CKSUM, LU_MENU_CKSUM); 3724 goto menu_sync; 3725 } 3726 BAM_DPRINTF((D_CKSUM_FILE_OPENED, fcn, LU_MENU_CKSUM)); 3727 3728 found = 0; 3729 while (s_fgets(cksum_line, sizeof (cksum_line), cfp) != NULL) { 3730 INJECT_ERROR1("MULTIPLE_CKSUM", found = 1); 3731 if (found) { 3732 bam_error(MULTIPLE_LU_CKSUM, LU_MENU_CKSUM); 3733 (void) fclose(cfp); 3734 goto menu_sync; 3735 } 3736 found = 1; 3737 } 3738 BAM_DPRINTF((D_CKSUM_FILE_READ, fcn, LU_MENU_CKSUM)); 3739 3740 3741 old_cksum_str = strtok(cksum_line, " \t"); 3742 old_size_str = strtok(NULL, " \t"); 3743 old_file = strtok(NULL, " \t"); 3744 3745 INJECT_ERROR1("OLD_CKSUM_NULL", old_cksum_str = NULL); 3746 INJECT_ERROR1("OLD_SIZE_NULL", old_size_str = NULL); 3747 INJECT_ERROR1("OLD_FILE_NULL", old_file = NULL); 3748 if (old_cksum_str == NULL || old_size_str == NULL || old_file == NULL) { 3749 bam_error(CANNOT_PARSE_LU_CKSUM, LU_MENU_CKSUM); 3750 goto menu_sync; 3751 } 3752 BAM_DPRINTF((D_CKSUM_FILE_PARSED, fcn, LU_MENU_CKSUM)); 3753 3754 /* Get checksum of current menu */ 3755 pool = find_root_pool(); 3756 (void) snprintf(cmdline, sizeof (cmdline), "%s %s%s%s", 3757 CKSUM, pool == NULL ? "" : "/", pool == NULL ? "" : pool, 3758 GRUB_MENU); 3759 free(pool); 3760 ret = exec_cmd(cmdline, &flist); 3761 INJECT_ERROR1("GET_CURR_CKSUM", ret = 1); 3762 if (ret != 0) { 3763 bam_error(MENU_CKSUM_FAIL); 3764 return (BAM_ERROR); 3765 } 3766 BAM_DPRINTF((D_CKSUM_GEN_SUCCESS, fcn)); 3767 3768 INJECT_ERROR1("GET_CURR_CKSUM_OUTPUT", flist.head = NULL); 3769 if ((flist.head == NULL) || (flist.head != flist.tail)) { 3770 bam_error(BAD_CKSUM); 3771 filelist_free(&flist); 3772 return (BAM_ERROR); 3773 } 3774 BAM_DPRINTF((D_CKSUM_GEN_OUTPUT_VALID, fcn)); 3775 3776 curr_cksum_str = strtok(flist.head->line, " \t"); 3777 curr_size_str = strtok(NULL, " \t"); 3778 curr_file = strtok(NULL, " \t"); 3779 3780 INJECT_ERROR1("CURR_CKSUM_NULL", curr_cksum_str = NULL); 3781 INJECT_ERROR1("CURR_SIZE_NULL", curr_size_str = NULL); 3782 INJECT_ERROR1("CURR_FILE_NULL", curr_file = NULL); 3783 if (curr_cksum_str == NULL || curr_size_str == NULL || 3784 curr_file == NULL) { 3785 bam_error(BAD_CKSUM_PARSE); 3786 filelist_free(&flist); 3787 return (BAM_ERROR); 3788 } 3789 BAM_DPRINTF((D_CKSUM_GEN_PARSED, fcn)); 3790 3791 if (strcmp(old_cksum_str, curr_cksum_str) == 0 && 3792 strcmp(old_size_str, curr_size_str) == 0 && 3793 strcmp(old_file, curr_file) == 0) { 3794 filelist_free(&flist); 3795 BAM_DPRINTF((D_CKSUM_NO_CHANGE, fcn)); 3796 return (BAM_SUCCESS); 3797 } 3798 3799 filelist_free(&flist); 3800 3801 /* cksum doesn't match - the menu has changed */ 3802 BAM_DPRINTF((D_CKSUM_HAS_CHANGED, fcn)); 3803 3804 menu_sync: 3805 bam_print(PROP_GRUB_MENU); 3806 3807 (void) snprintf(cmdline, sizeof (cmdline), 3808 "/bin/sh -c '. %s > /dev/null; %s %s yes > /dev/null'", 3809 LULIB, LULIB_PROPAGATE_FILE, GRUB_MENU); 3810 ret = exec_cmd(cmdline, NULL); 3811 INJECT_ERROR1("PROPAGATE_MENU", ret = 1); 3812 if (ret != 0) { 3813 bam_error(MENU_PROP_FAIL); 3814 return (BAM_ERROR); 3815 } 3816 BAM_DPRINTF((D_PROPAGATED_MENU, fcn)); 3817 3818 (void) snprintf(cmdline, sizeof (cmdline), "/bin/cp %s %s > /dev/null", 3819 GRUB_MENU, GRUB_BACKUP_MENU); 3820 ret = exec_cmd(cmdline, NULL); 3821 INJECT_ERROR1("CREATE_BACKUP", ret = 1); 3822 if (ret != 0) { 3823 bam_error(MENU_BACKUP_FAIL, GRUB_BACKUP_MENU); 3824 return (BAM_ERROR); 3825 } 3826 BAM_DPRINTF((D_CREATED_BACKUP, fcn, GRUB_BACKUP_MENU)); 3827 3828 (void) snprintf(cmdline, sizeof (cmdline), 3829 "/bin/sh -c '. %s > /dev/null; %s %s no > /dev/null'", 3830 LULIB, LULIB_PROPAGATE_FILE, GRUB_BACKUP_MENU); 3831 ret = exec_cmd(cmdline, NULL); 3832 INJECT_ERROR1("PROPAGATE_BACKUP", ret = 1); 3833 if (ret != 0) { 3834 bam_error(BACKUP_PROP_FAIL, GRUB_BACKUP_MENU); 3835 return (BAM_ERROR); 3836 } 3837 BAM_DPRINTF((D_PROPAGATED_BACKUP, fcn, GRUB_BACKUP_MENU)); 3838 3839 (void) snprintf(cmdline, sizeof (cmdline), "%s %s > %s", 3840 CKSUM, GRUB_MENU, LU_MENU_CKSUM); 3841 ret = exec_cmd(cmdline, NULL); 3842 INJECT_ERROR1("CREATE_CKSUM_FILE", ret = 1); 3843 if (ret != 0) { 3844 bam_error(MENU_CKSUM_WRITE_FAIL, LU_MENU_CKSUM); 3845 return (BAM_ERROR); 3846 } 3847 BAM_DPRINTF((D_CREATED_CKSUM_FILE, fcn, LU_MENU_CKSUM)); 3848 3849 (void) snprintf(cmdline, sizeof (cmdline), 3850 "/bin/sh -c '. %s > /dev/null; %s %s no > /dev/null'", 3851 LULIB, LULIB_PROPAGATE_FILE, LU_MENU_CKSUM); 3852 ret = exec_cmd(cmdline, NULL); 3853 INJECT_ERROR1("PROPAGATE_MENU_CKSUM_FILE", ret = 1); 3854 if (ret != 0) { 3855 bam_error(MENU_CKSUM_PROP_FAIL, LU_MENU_CKSUM); 3856 return (BAM_ERROR); 3857 } 3858 BAM_DPRINTF((D_PROPAGATED_CKSUM_FILE, fcn, LU_MENU_CKSUM)); 3859 3860 return (BAM_SUCCESS); 3861 } 3862 3863 static error_t 3864 update_all(char *root, char *opt) 3865 { 3866 struct extmnttab mnt; 3867 struct stat sb; 3868 FILE *fp; 3869 char multibt[PATH_MAX]; 3870 char creatram[PATH_MAX]; 3871 error_t ret = BAM_SUCCESS; 3872 3873 assert(root); 3874 assert(opt == NULL); 3875 3876 if (bam_rootlen != 1 || *root != '/') { 3877 elide_trailing_slash(root, multibt, sizeof (multibt)); 3878 bam_error(ALT_ROOT_INVALID, multibt); 3879 return (BAM_ERROR); 3880 } 3881 3882 /* 3883 * Check to see if we are in the midst of safemode patching 3884 * If so skip building the archive for /. Instead build it 3885 * against the latest bits obtained by creating a fresh lofs 3886 * mount of root. 3887 */ 3888 if (stat(LOFS_PATCH_FILE, &sb) == 0) { 3889 if (mkdir(LOFS_PATCH_MNT, DIR_PERMS) == -1 && 3890 errno != EEXIST) { 3891 bam_error(MKDIR_FAILED, "%s", LOFS_PATCH_MNT, 3892 strerror(errno)); 3893 ret = BAM_ERROR; 3894 goto out; 3895 } 3896 (void) snprintf(multibt, sizeof (multibt), 3897 "/sbin/mount -F lofs -o nosub / %s", LOFS_PATCH_MNT); 3898 if (exec_cmd(multibt, NULL) != 0) { 3899 bam_error(MOUNT_FAILED, LOFS_PATCH_MNT, "lofs"); 3900 ret = BAM_ERROR; 3901 } 3902 if (ret != BAM_ERROR) { 3903 (void) snprintf(rootbuf, sizeof (rootbuf), "%s/", 3904 LOFS_PATCH_MNT); 3905 bam_rootlen = strlen(rootbuf); 3906 if (update_archive(rootbuf, opt) != BAM_SUCCESS) 3907 ret = BAM_ERROR; 3908 /* 3909 * unmount the lofs mount since there could be 3910 * multiple invocations of bootadm -a update_all 3911 */ 3912 (void) snprintf(multibt, sizeof (multibt), 3913 "/sbin/umount %s", LOFS_PATCH_MNT); 3914 if (exec_cmd(multibt, NULL) != 0) { 3915 bam_error(UMOUNT_FAILED, LOFS_PATCH_MNT); 3916 ret = BAM_ERROR; 3917 } 3918 } 3919 } else { 3920 /* 3921 * First update archive for current root 3922 */ 3923 if (update_archive(root, opt) != BAM_SUCCESS) 3924 ret = BAM_ERROR; 3925 } 3926 3927 if (ret == BAM_ERROR) 3928 goto out; 3929 3930 /* 3931 * Now walk the mount table, performing archive update 3932 * for all mounted Newboot root filesystems 3933 */ 3934 fp = fopen(MNTTAB, "r"); 3935 if (fp == NULL) { 3936 bam_error(OPEN_FAIL, MNTTAB, strerror(errno)); 3937 ret = BAM_ERROR; 3938 goto out; 3939 } 3940 3941 resetmnttab(fp); 3942 3943 while (getextmntent(fp, &mnt, sizeof (mnt)) == 0) { 3944 if (mnt.mnt_special == NULL) 3945 continue; 3946 if ((strcmp(mnt.mnt_fstype, MNTTYPE_ZFS) != 0) && 3947 (strncmp(mnt.mnt_special, "/dev/", strlen("/dev/")) != 0)) 3948 continue; 3949 if (strcmp(mnt.mnt_mountp, "/") == 0) 3950 continue; 3951 3952 (void) snprintf(creatram, sizeof (creatram), "%s/%s", 3953 mnt.mnt_mountp, CREATE_RAMDISK); 3954 3955 if (stat(creatram, &sb) == -1) 3956 continue; 3957 3958 /* 3959 * We put a trailing slash to be consistent with root = "/" 3960 * case, such that we don't have to print // in some cases. 3961 */ 3962 (void) snprintf(rootbuf, sizeof (rootbuf), "%s/", 3963 mnt.mnt_mountp); 3964 bam_rootlen = strlen(rootbuf); 3965 3966 /* 3967 * It's possible that other mounts may be an alternate boot 3968 * architecture, so check it again. 3969 */ 3970 if ((get_boot_cap(rootbuf) != BAM_SUCCESS) || 3971 (update_archive(rootbuf, opt) != BAM_SUCCESS)) 3972 ret = BAM_ERROR; 3973 } 3974 3975 (void) fclose(fp); 3976 3977 out: 3978 /* 3979 * We no longer use biosdev for Live Upgrade. Hence 3980 * there is no need to defer (to shutdown time) any fdisk 3981 * updates 3982 */ 3983 if (stat(GRUB_fdisk, &sb) == 0 || stat(GRUB_fdisk_target, &sb) == 0) { 3984 bam_error(FDISK_FILES_FOUND, GRUB_fdisk, GRUB_fdisk_target); 3985 } 3986 3987 /* 3988 * If user has updated menu in current BE, propagate the 3989 * updates to all BEs. 3990 */ 3991 if (sync_menu && synchronize_BE_menu() != BAM_SUCCESS) 3992 ret = BAM_ERROR; 3993 3994 return (ret); 3995 } 3996 3997 static void 3998 append_line(menu_t *mp, line_t *lp) 3999 { 4000 if (mp->start == NULL) { 4001 mp->start = lp; 4002 } else { 4003 mp->end->next = lp; 4004 lp->prev = mp->end; 4005 } 4006 mp->end = lp; 4007 } 4008 4009 void 4010 unlink_line(menu_t *mp, line_t *lp) 4011 { 4012 /* unlink from list */ 4013 if (lp->prev) 4014 lp->prev->next = lp->next; 4015 else 4016 mp->start = lp->next; 4017 if (lp->next) 4018 lp->next->prev = lp->prev; 4019 else 4020 mp->end = lp->prev; 4021 } 4022 4023 static entry_t * 4024 boot_entry_new(menu_t *mp, line_t *start, line_t *end) 4025 { 4026 entry_t *ent, *prev; 4027 const char *fcn = "boot_entry_new()"; 4028 4029 assert(mp); 4030 assert(start); 4031 assert(end); 4032 4033 ent = s_calloc(1, sizeof (entry_t)); 4034 BAM_DPRINTF((D_ENTRY_NEW, fcn)); 4035 ent->start = start; 4036 ent->end = end; 4037 4038 if (mp->entries == NULL) { 4039 mp->entries = ent; 4040 BAM_DPRINTF((D_ENTRY_NEW_FIRST, fcn)); 4041 return (ent); 4042 } 4043 4044 prev = mp->entries; 4045 while (prev->next) 4046 prev = prev->next; 4047 prev->next = ent; 4048 ent->prev = prev; 4049 BAM_DPRINTF((D_ENTRY_NEW_LINKED, fcn)); 4050 return (ent); 4051 } 4052 4053 static void 4054 boot_entry_addline(entry_t *ent, line_t *lp) 4055 { 4056 if (ent) 4057 ent->end = lp; 4058 } 4059 4060 /* 4061 * Check whether cmd matches the one indexed by which, and whether arg matches 4062 * str. which must be either KERNEL_CMD or MODULE_CMD, and a match to the 4063 * respective *_DOLLAR_CMD is also acceptable. The arg is searched using 4064 * strstr(), so it can be a partial match. 4065 */ 4066 static int 4067 check_cmd(const char *cmd, const int which, const char *arg, const char *str) 4068 { 4069 int ret; 4070 const char *fcn = "check_cmd()"; 4071 4072 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, arg, str)); 4073 4074 if (cmd != NULL) { 4075 if ((strcmp(cmd, menu_cmds[which]) != 0) && 4076 (strcmp(cmd, menu_cmds[which + 1]) != 0)) { 4077 BAM_DPRINTF((D_CHECK_CMD_CMD_NOMATCH, 4078 fcn, cmd, menu_cmds[which])); 4079 return (0); 4080 } 4081 ret = (strstr(arg, str) != NULL); 4082 } else 4083 ret = 0; 4084 4085 if (ret) { 4086 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 4087 } else { 4088 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 4089 } 4090 4091 return (ret); 4092 } 4093 4094 static error_t 4095 kernel_parser(entry_t *entry, char *cmd, char *arg, int linenum) 4096 { 4097 const char *fcn = "kernel_parser()"; 4098 4099 assert(entry); 4100 assert(cmd); 4101 assert(arg); 4102 4103 if (strcmp(cmd, menu_cmds[KERNEL_CMD]) != 0 && 4104 strcmp(cmd, menu_cmds[KERNEL_DOLLAR_CMD]) != 0) { 4105 BAM_DPRINTF((D_NOT_KERNEL_CMD, fcn, cmd)); 4106 return (BAM_ERROR); 4107 } 4108 4109 if (strncmp(arg, DIRECT_BOOT_32, sizeof (DIRECT_BOOT_32) - 1) == 0) { 4110 BAM_DPRINTF((D_SET_DBOOT_32, fcn, arg)); 4111 entry->flags |= BAM_ENTRY_DBOOT | BAM_ENTRY_32BIT; 4112 } else if (strncmp(arg, DIRECT_BOOT_KERNEL, 4113 sizeof (DIRECT_BOOT_KERNEL) - 1) == 0) { 4114 BAM_DPRINTF((D_SET_DBOOT, fcn, arg)); 4115 entry->flags |= BAM_ENTRY_DBOOT; 4116 } else if (strncmp(arg, DIRECT_BOOT_64, 4117 sizeof (DIRECT_BOOT_64) - 1) == 0) { 4118 BAM_DPRINTF((D_SET_DBOOT_64, fcn, arg)); 4119 entry->flags |= BAM_ENTRY_DBOOT | BAM_ENTRY_64BIT; 4120 } else if (strncmp(arg, DIRECT_BOOT_FAILSAFE_KERNEL, 4121 sizeof (DIRECT_BOOT_FAILSAFE_KERNEL) - 1) == 0) { 4122 BAM_DPRINTF((D_SET_DBOOT_FAILSAFE, fcn, arg)); 4123 entry->flags |= BAM_ENTRY_DBOOT | BAM_ENTRY_FAILSAFE; 4124 } else if (strncmp(arg, DIRECT_BOOT_FAILSAFE_32, 4125 sizeof (DIRECT_BOOT_FAILSAFE_32) - 1) == 0) { 4126 BAM_DPRINTF((D_SET_DBOOT_FAILSAFE_32, fcn, arg)); 4127 entry->flags |= BAM_ENTRY_DBOOT | BAM_ENTRY_FAILSAFE 4128 | BAM_ENTRY_32BIT; 4129 } else if (strncmp(arg, DIRECT_BOOT_FAILSAFE_64, 4130 sizeof (DIRECT_BOOT_FAILSAFE_64) - 1) == 0) { 4131 BAM_DPRINTF((D_SET_DBOOT_FAILSAFE_64, fcn, arg)); 4132 entry->flags |= BAM_ENTRY_DBOOT | BAM_ENTRY_FAILSAFE 4133 | BAM_ENTRY_64BIT; 4134 } else if (strncmp(arg, MULTI_BOOT, sizeof (MULTI_BOOT) - 1) == 0) { 4135 BAM_DPRINTF((D_SET_MULTIBOOT, fcn, arg)); 4136 entry->flags |= BAM_ENTRY_MULTIBOOT; 4137 } else if (strncmp(arg, MULTI_BOOT_FAILSAFE, 4138 sizeof (MULTI_BOOT_FAILSAFE) - 1) == 0) { 4139 BAM_DPRINTF((D_SET_MULTIBOOT_FAILSAFE, fcn, arg)); 4140 entry->flags |= BAM_ENTRY_MULTIBOOT | BAM_ENTRY_FAILSAFE; 4141 } else if (strstr(arg, XEN_KERNEL_SUBSTR)) { 4142 BAM_DPRINTF((D_SET_HV, fcn, arg)); 4143 entry->flags |= BAM_ENTRY_HV; 4144 } else if (!(entry->flags & (BAM_ENTRY_BOOTADM|BAM_ENTRY_LU))) { 4145 BAM_DPRINTF((D_SET_HAND_KERNEL, fcn, arg)); 4146 return (BAM_ERROR); 4147 } else if (strncmp(arg, KERNEL_PREFIX, strlen(KERNEL_PREFIX)) == 0 && 4148 strstr(arg, UNIX_SPACE)) { 4149 entry->flags |= BAM_ENTRY_DBOOT | BAM_ENTRY_32BIT; 4150 } else if (strncmp(arg, KERNEL_PREFIX, strlen(KERNEL_PREFIX)) == 0 && 4151 strstr(arg, AMD_UNIX_SPACE)) { 4152 entry->flags |= BAM_ENTRY_DBOOT | BAM_ENTRY_64BIT; 4153 } else { 4154 BAM_DPRINTF((D_IS_UNKNOWN_KERNEL, fcn, arg)); 4155 bam_error(UNKNOWN_KERNEL_LINE, linenum); 4156 return (BAM_ERROR); 4157 } 4158 4159 return (BAM_SUCCESS); 4160 } 4161 4162 static error_t 4163 module_parser(entry_t *entry, char *cmd, char *arg, int linenum) 4164 { 4165 const char *fcn = "module_parser()"; 4166 4167 assert(entry); 4168 assert(cmd); 4169 assert(arg); 4170 4171 if (strcmp(cmd, menu_cmds[MODULE_CMD]) != 0 && 4172 strcmp(cmd, menu_cmds[MODULE_DOLLAR_CMD]) != 0) { 4173 BAM_DPRINTF((D_NOT_MODULE_CMD, fcn, cmd)); 4174 return (BAM_ERROR); 4175 } 4176 4177 if (strcmp(arg, DIRECT_BOOT_ARCHIVE) == 0 || 4178 strcmp(arg, DIRECT_BOOT_ARCHIVE_32) == 0 || 4179 strcmp(arg, DIRECT_BOOT_ARCHIVE_64) == 0 || 4180 strcmp(arg, MULTIBOOT_ARCHIVE) == 0 || 4181 strcmp(arg, FAILSAFE_ARCHIVE) == 0 || 4182 strcmp(arg, FAILSAFE_ARCHIVE_32) == 0 || 4183 strcmp(arg, FAILSAFE_ARCHIVE_64) == 0 || 4184 strcmp(arg, XEN_KERNEL_MODULE_LINE) == 0 || 4185 strcmp(arg, XEN_KERNEL_MODULE_LINE_ZFS) == 0) { 4186 BAM_DPRINTF((D_BOOTADM_LU_MODULE, fcn, arg)); 4187 return (BAM_SUCCESS); 4188 } else if (!(entry->flags & BAM_ENTRY_BOOTADM) && 4189 !(entry->flags & BAM_ENTRY_LU)) { 4190 /* don't emit warning for hand entries */ 4191 BAM_DPRINTF((D_IS_HAND_MODULE, fcn, arg)); 4192 return (BAM_ERROR); 4193 } else { 4194 BAM_DPRINTF((D_IS_UNKNOWN_MODULE, fcn, arg)); 4195 bam_error(UNKNOWN_MODULE_LINE, linenum); 4196 return (BAM_ERROR); 4197 } 4198 } 4199 4200 /* 4201 * A line in menu.lst looks like 4202 * [ ]*<cmd>[ \t=]*<arg>* 4203 */ 4204 static void 4205 line_parser(menu_t *mp, char *str, int *lineNum, int *entryNum) 4206 { 4207 /* 4208 * save state across calls. This is so that 4209 * header gets the right entry# after title has 4210 * been processed 4211 */ 4212 static line_t *prev = NULL; 4213 static entry_t *curr_ent = NULL; 4214 static int in_liveupgrade = 0; 4215 static int is_libbe_ent = 0; 4216 4217 line_t *lp; 4218 char *cmd, *sep, *arg; 4219 char save, *cp, *line; 4220 menu_flag_t flag = BAM_INVALID; 4221 const char *fcn = "line_parser()"; 4222 4223 if (str == NULL) { 4224 return; 4225 } 4226 4227 /* 4228 * First save a copy of the entire line. 4229 * We use this later to set the line field. 4230 */ 4231 line = s_strdup(str); 4232 4233 /* Eat up leading whitespace */ 4234 while (*str == ' ' || *str == '\t') 4235 str++; 4236 4237 if (*str == '#') { /* comment */ 4238 cmd = s_strdup("#"); 4239 sep = NULL; 4240 arg = s_strdup(str + 1); 4241 flag = BAM_COMMENT; 4242 if (strstr(arg, BAM_LU_HDR) != NULL) { 4243 in_liveupgrade = 1; 4244 } else if (strstr(arg, BAM_LU_FTR) != NULL) { 4245 in_liveupgrade = 0; 4246 } else if (strstr(arg, BAM_LIBBE_FTR) != NULL) { 4247 is_libbe_ent = 1; 4248 } 4249 } else if (*str == '\0') { /* blank line */ 4250 cmd = sep = arg = NULL; 4251 flag = BAM_EMPTY; 4252 } else { 4253 /* 4254 * '=' is not a documented separator in grub syntax. 4255 * However various development bits use '=' as a 4256 * separator. In addition, external users also 4257 * use = as a separator. So we will allow that usage. 4258 */ 4259 cp = str; 4260 while (*str != ' ' && *str != '\t' && *str != '=') { 4261 if (*str == '\0') { 4262 cmd = s_strdup(cp); 4263 sep = arg = NULL; 4264 break; 4265 } 4266 str++; 4267 } 4268 4269 if (*str != '\0') { 4270 save = *str; 4271 *str = '\0'; 4272 cmd = s_strdup(cp); 4273 *str = save; 4274 4275 str++; 4276 save = *str; 4277 *str = '\0'; 4278 sep = s_strdup(str - 1); 4279 *str = save; 4280 4281 while (*str == ' ' || *str == '\t') 4282 str++; 4283 if (*str == '\0') 4284 arg = NULL; 4285 else 4286 arg = s_strdup(str); 4287 } 4288 } 4289 4290 lp = s_calloc(1, sizeof (line_t)); 4291 4292 lp->cmd = cmd; 4293 lp->sep = sep; 4294 lp->arg = arg; 4295 lp->line = line; 4296 lp->lineNum = ++(*lineNum); 4297 if (cmd && strcmp(cmd, menu_cmds[TITLE_CMD]) == 0) { 4298 lp->entryNum = ++(*entryNum); 4299 lp->flags = BAM_TITLE; 4300 if (prev && prev->flags == BAM_COMMENT && 4301 prev->arg && strcmp(prev->arg, BAM_BOOTADM_HDR) == 0) { 4302 prev->entryNum = lp->entryNum; 4303 curr_ent = boot_entry_new(mp, prev, lp); 4304 curr_ent->flags |= BAM_ENTRY_BOOTADM; 4305 BAM_DPRINTF((D_IS_BOOTADM_ENTRY, fcn, arg)); 4306 } else { 4307 curr_ent = boot_entry_new(mp, lp, lp); 4308 if (in_liveupgrade) { 4309 curr_ent->flags |= BAM_ENTRY_LU; 4310 BAM_DPRINTF((D_IS_LU_ENTRY, fcn, arg)); 4311 } 4312 } 4313 curr_ent->entryNum = *entryNum; 4314 } else if (flag != BAM_INVALID) { 4315 /* 4316 * For header comments, the entry# is "fixed up" 4317 * by the subsequent title 4318 */ 4319 lp->entryNum = *entryNum; 4320 lp->flags = flag; 4321 } else { 4322 lp->entryNum = *entryNum; 4323 4324 if (*entryNum == ENTRY_INIT) { 4325 lp->flags = BAM_GLOBAL; 4326 } else { 4327 lp->flags = BAM_ENTRY; 4328 4329 if (cmd && arg) { 4330 if (strcmp(cmd, menu_cmds[ROOT_CMD]) == 0) { 4331 BAM_DPRINTF((D_IS_ROOT_CMD, fcn, arg)); 4332 curr_ent->flags |= BAM_ENTRY_ROOT; 4333 } else if (strcmp(cmd, menu_cmds[FINDROOT_CMD]) 4334 == 0) { 4335 BAM_DPRINTF((D_IS_FINDROOT_CMD, fcn, 4336 arg)); 4337 curr_ent->flags |= BAM_ENTRY_FINDROOT; 4338 } else if (strcmp(cmd, 4339 menu_cmds[CHAINLOADER_CMD]) == 0) { 4340 BAM_DPRINTF((D_IS_CHAINLOADER_CMD, fcn, 4341 arg)); 4342 curr_ent->flags |= 4343 BAM_ENTRY_CHAINLOADER; 4344 } else if (kernel_parser(curr_ent, cmd, arg, 4345 lp->lineNum) != BAM_SUCCESS) { 4346 (void) module_parser(curr_ent, cmd, 4347 arg, lp->lineNum); 4348 } 4349 } 4350 } 4351 } 4352 4353 /* record default, old default, and entry line ranges */ 4354 if (lp->flags == BAM_GLOBAL && lp->cmd != NULL && 4355 strcmp(lp->cmd, menu_cmds[DEFAULT_CMD]) == 0) { 4356 mp->curdefault = lp; 4357 } else if (lp->flags == BAM_COMMENT && 4358 strncmp(lp->arg, BAM_OLDDEF, strlen(BAM_OLDDEF)) == 0) { 4359 mp->olddefault = lp; 4360 } else if (lp->flags == BAM_COMMENT && 4361 strncmp(lp->arg, BAM_OLD_RC_DEF, strlen(BAM_OLD_RC_DEF)) == 0) { 4362 mp->old_rc_default = lp; 4363 } else if (lp->flags == BAM_ENTRY || 4364 (lp->flags == BAM_COMMENT && 4365 ((strcmp(lp->arg, BAM_BOOTADM_FTR) == 0) || is_libbe_ent))) { 4366 if (is_libbe_ent) { 4367 curr_ent->flags |= BAM_ENTRY_LIBBE; 4368 is_libbe_ent = 0; 4369 } 4370 4371 boot_entry_addline(curr_ent, lp); 4372 } 4373 append_line(mp, lp); 4374 4375 prev = lp; 4376 } 4377 4378 void 4379 update_numbering(menu_t *mp) 4380 { 4381 int lineNum; 4382 int entryNum; 4383 int old_default_value; 4384 line_t *lp, *prev, *default_lp, *default_entry; 4385 char buf[PATH_MAX]; 4386 4387 if (mp->start == NULL) { 4388 return; 4389 } 4390 4391 lineNum = LINE_INIT; 4392 entryNum = ENTRY_INIT; 4393 old_default_value = ENTRY_INIT; 4394 lp = default_lp = default_entry = NULL; 4395 4396 prev = NULL; 4397 for (lp = mp->start; lp; prev = lp, lp = lp->next) { 4398 lp->lineNum = ++lineNum; 4399 4400 /* 4401 * Get the value of the default command 4402 */ 4403 if (lp->entryNum == ENTRY_INIT && lp->cmd != NULL && 4404 strcmp(lp->cmd, menu_cmds[DEFAULT_CMD]) == 0 && 4405 lp->arg) { 4406 old_default_value = atoi(lp->arg); 4407 default_lp = lp; 4408 } 4409 4410 /* 4411 * If not a booting entry, nothing else to fix for this 4412 * entry 4413 */ 4414 if (lp->entryNum == ENTRY_INIT) 4415 continue; 4416 4417 /* 4418 * Record the position of the default entry. 4419 * The following works because global 4420 * commands like default and timeout should precede 4421 * actual boot entries, so old_default_value 4422 * is already known (or default cmd is missing). 4423 */ 4424 if (default_entry == NULL && 4425 old_default_value != ENTRY_INIT && 4426 lp->entryNum == old_default_value) { 4427 default_entry = lp; 4428 } 4429 4430 /* 4431 * Now fixup the entry number 4432 */ 4433 if (lp->cmd != NULL && 4434 strcmp(lp->cmd, menu_cmds[TITLE_CMD]) == 0) { 4435 lp->entryNum = ++entryNum; 4436 /* fixup the bootadm header */ 4437 if (prev && prev->flags == BAM_COMMENT && 4438 prev->arg && 4439 strcmp(prev->arg, BAM_BOOTADM_HDR) == 0) { 4440 prev->entryNum = lp->entryNum; 4441 } 4442 } else { 4443 lp->entryNum = entryNum; 4444 } 4445 } 4446 4447 /* 4448 * No default command in menu, simply return 4449 */ 4450 if (default_lp == NULL) { 4451 return; 4452 } 4453 4454 free(default_lp->arg); 4455 free(default_lp->line); 4456 4457 if (default_entry == NULL) { 4458 default_lp->arg = s_strdup("0"); 4459 } else { 4460 (void) snprintf(buf, sizeof (buf), "%d", 4461 default_entry->entryNum); 4462 default_lp->arg = s_strdup(buf); 4463 } 4464 4465 /* 4466 * The following is required since only the line field gets 4467 * written back to menu.lst 4468 */ 4469 (void) snprintf(buf, sizeof (buf), "%s%s%s", 4470 menu_cmds[DEFAULT_CMD], menu_cmds[SEP_CMD], default_lp->arg); 4471 default_lp->line = s_strdup(buf); 4472 } 4473 4474 4475 static menu_t * 4476 menu_read(char *menu_path) 4477 { 4478 FILE *fp; 4479 char buf[BAM_MAXLINE], *cp; 4480 menu_t *mp; 4481 int line, entry, len, n; 4482 4483 mp = s_calloc(1, sizeof (menu_t)); 4484 4485 fp = fopen(menu_path, "r"); 4486 if (fp == NULL) { /* Let the caller handle this error */ 4487 free(mp); 4488 return (NULL); 4489 } 4490 4491 /* Note: GRUB boot entry number starts with 0 */ 4492 line = LINE_INIT; 4493 entry = ENTRY_INIT; 4494 cp = buf; 4495 len = sizeof (buf); 4496 while (s_fgets(cp, len, fp) != NULL) { 4497 n = strlen(cp); 4498 if (cp[n - 1] == '\\') { 4499 len -= n - 1; 4500 assert(len >= 2); 4501 cp += n - 1; 4502 continue; 4503 } 4504 line_parser(mp, buf, &line, &entry); 4505 cp = buf; 4506 len = sizeof (buf); 4507 } 4508 4509 if (fclose(fp) == EOF) { 4510 bam_error(CLOSE_FAIL, menu_path, strerror(errno)); 4511 } 4512 4513 return (mp); 4514 } 4515 4516 static error_t 4517 selector(menu_t *mp, char *opt, int *entry, char **title) 4518 { 4519 char *eq; 4520 char *opt_dup; 4521 int entryNum; 4522 4523 assert(mp); 4524 assert(mp->start); 4525 assert(opt); 4526 4527 opt_dup = s_strdup(opt); 4528 4529 if (entry) 4530 *entry = ENTRY_INIT; 4531 if (title) 4532 *title = NULL; 4533 4534 eq = strchr(opt_dup, '='); 4535 if (eq == NULL) { 4536 bam_error(INVALID_OPT, opt); 4537 free(opt_dup); 4538 return (BAM_ERROR); 4539 } 4540 4541 *eq = '\0'; 4542 if (entry && strcmp(opt_dup, OPT_ENTRY_NUM) == 0) { 4543 assert(mp->end); 4544 entryNum = s_strtol(eq + 1); 4545 if (entryNum < 0 || entryNum > mp->end->entryNum) { 4546 bam_error(INVALID_ENTRY, eq + 1); 4547 free(opt_dup); 4548 return (BAM_ERROR); 4549 } 4550 *entry = entryNum; 4551 } else if (title && strcmp(opt_dup, menu_cmds[TITLE_CMD]) == 0) { 4552 *title = opt + (eq - opt_dup) + 1; 4553 } else { 4554 bam_error(INVALID_OPT, opt); 4555 free(opt_dup); 4556 return (BAM_ERROR); 4557 } 4558 4559 free(opt_dup); 4560 return (BAM_SUCCESS); 4561 } 4562 4563 /* 4564 * If invoked with no titles/entries (opt == NULL) 4565 * only title lines in file are printed. 4566 * 4567 * If invoked with a title or entry #, all 4568 * lines in *every* matching entry are listed 4569 */ 4570 static error_t 4571 list_entry(menu_t *mp, char *menu_path, char *opt) 4572 { 4573 line_t *lp; 4574 int entry = ENTRY_INIT; 4575 int found; 4576 char *title = NULL; 4577 4578 assert(mp); 4579 assert(menu_path); 4580 4581 /* opt is optional */ 4582 BAM_DPRINTF((D_FUNC_ENTRY2, "list_entry", menu_path, 4583 opt ? opt : "<NULL>")); 4584 4585 if (mp->start == NULL) { 4586 bam_error(NO_MENU, menu_path); 4587 return (BAM_ERROR); 4588 } 4589 4590 if (opt != NULL) { 4591 if (selector(mp, opt, &entry, &title) != BAM_SUCCESS) { 4592 return (BAM_ERROR); 4593 } 4594 assert((entry != ENTRY_INIT) ^ (title != NULL)); 4595 } else { 4596 (void) read_globals(mp, menu_path, menu_cmds[DEFAULT_CMD], 0); 4597 (void) read_globals(mp, menu_path, menu_cmds[TIMEOUT_CMD], 0); 4598 } 4599 4600 found = 0; 4601 for (lp = mp->start; lp; lp = lp->next) { 4602 if (lp->flags == BAM_COMMENT || lp->flags == BAM_EMPTY) 4603 continue; 4604 if (opt == NULL && lp->flags == BAM_TITLE) { 4605 bam_print(PRINT_TITLE, lp->entryNum, 4606 lp->arg); 4607 found = 1; 4608 continue; 4609 } 4610 if (entry != ENTRY_INIT && lp->entryNum == entry) { 4611 bam_print(PRINT, lp->line); 4612 found = 1; 4613 continue; 4614 } 4615 4616 /* 4617 * We set the entry value here so that all lines 4618 * in entry get printed. If we subsequently match 4619 * title in other entries, all lines in those 4620 * entries get printed as well. 4621 */ 4622 if (title && lp->flags == BAM_TITLE && lp->arg && 4623 strncmp(title, lp->arg, strlen(title)) == 0) { 4624 bam_print(PRINT, lp->line); 4625 entry = lp->entryNum; 4626 found = 1; 4627 continue; 4628 } 4629 } 4630 4631 if (!found) { 4632 bam_error(NO_MATCH_ENTRY); 4633 return (BAM_ERROR); 4634 } 4635 4636 return (BAM_SUCCESS); 4637 } 4638 4639 int 4640 add_boot_entry(menu_t *mp, 4641 char *title, 4642 char *findroot, 4643 char *kernel, 4644 char *mod_kernel, 4645 char *module, 4646 char *bootfs) 4647 { 4648 int lineNum; 4649 int entryNum; 4650 char linebuf[BAM_MAXLINE]; 4651 menu_cmd_t k_cmd; 4652 menu_cmd_t m_cmd; 4653 const char *fcn = "add_boot_entry()"; 4654 4655 assert(mp); 4656 4657 INJECT_ERROR1("ADD_BOOT_ENTRY_FINDROOT_NULL", findroot = NULL); 4658 if (findroot == NULL) { 4659 bam_error(NULL_FINDROOT); 4660 return (BAM_ERROR); 4661 } 4662 4663 if (title == NULL) { 4664 title = "Solaris"; /* default to Solaris */ 4665 } 4666 if (kernel == NULL) { 4667 bam_error(SUBOPT_MISS, menu_cmds[KERNEL_CMD]); 4668 return (BAM_ERROR); 4669 } 4670 if (module == NULL) { 4671 if (bam_direct != BAM_DIRECT_DBOOT) { 4672 bam_error(SUBOPT_MISS, menu_cmds[MODULE_CMD]); 4673 return (BAM_ERROR); 4674 } 4675 4676 /* Figure the commands out from the kernel line */ 4677 if (strstr(kernel, "$ISADIR") != NULL) { 4678 module = DIRECT_BOOT_ARCHIVE; 4679 k_cmd = KERNEL_DOLLAR_CMD; 4680 m_cmd = MODULE_DOLLAR_CMD; 4681 } else if (strstr(kernel, "amd64") != NULL) { 4682 module = DIRECT_BOOT_ARCHIVE_64; 4683 k_cmd = KERNEL_CMD; 4684 m_cmd = MODULE_CMD; 4685 } else { 4686 module = DIRECT_BOOT_ARCHIVE_32; 4687 k_cmd = KERNEL_CMD; 4688 m_cmd = MODULE_CMD; 4689 } 4690 } else if ((bam_direct == BAM_DIRECT_DBOOT) && 4691 (strstr(kernel, "$ISADIR") != NULL)) { 4692 /* 4693 * If it's a non-failsafe dboot kernel, use the "kernel$" 4694 * command. Otherwise, use "kernel". 4695 */ 4696 k_cmd = KERNEL_DOLLAR_CMD; 4697 m_cmd = MODULE_DOLLAR_CMD; 4698 } else { 4699 k_cmd = KERNEL_CMD; 4700 m_cmd = MODULE_CMD; 4701 } 4702 4703 if (mp->start) { 4704 lineNum = mp->end->lineNum; 4705 entryNum = mp->end->entryNum; 4706 } else { 4707 lineNum = LINE_INIT; 4708 entryNum = ENTRY_INIT; 4709 } 4710 4711 /* 4712 * No separator for comment (HDR/FTR) commands 4713 * The syntax for comments is #<comment> 4714 */ 4715 (void) snprintf(linebuf, sizeof (linebuf), "%s%s", 4716 menu_cmds[COMMENT_CMD], BAM_BOOTADM_HDR); 4717 line_parser(mp, linebuf, &lineNum, &entryNum); 4718 4719 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 4720 menu_cmds[TITLE_CMD], menu_cmds[SEP_CMD], title); 4721 line_parser(mp, linebuf, &lineNum, &entryNum); 4722 4723 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 4724 menu_cmds[FINDROOT_CMD], menu_cmds[SEP_CMD], findroot); 4725 line_parser(mp, linebuf, &lineNum, &entryNum); 4726 BAM_DPRINTF((D_ADD_FINDROOT_NUM, fcn, lineNum, entryNum)); 4727 4728 if (bootfs != NULL) { 4729 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 4730 menu_cmds[BOOTFS_CMD], menu_cmds[SEP_CMD], bootfs); 4731 line_parser(mp, linebuf, &lineNum, &entryNum); 4732 } 4733 4734 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 4735 menu_cmds[k_cmd], menu_cmds[SEP_CMD], kernel); 4736 line_parser(mp, linebuf, &lineNum, &entryNum); 4737 4738 if (mod_kernel != NULL) { 4739 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 4740 menu_cmds[m_cmd], menu_cmds[SEP_CMD], mod_kernel); 4741 line_parser(mp, linebuf, &lineNum, &entryNum); 4742 } 4743 4744 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 4745 menu_cmds[m_cmd], menu_cmds[SEP_CMD], module); 4746 line_parser(mp, linebuf, &lineNum, &entryNum); 4747 4748 (void) snprintf(linebuf, sizeof (linebuf), "%s%s", 4749 menu_cmds[COMMENT_CMD], BAM_BOOTADM_FTR); 4750 line_parser(mp, linebuf, &lineNum, &entryNum); 4751 4752 return (entryNum); 4753 } 4754 4755 error_t 4756 delete_boot_entry(menu_t *mp, int entryNum, int quiet) 4757 { 4758 line_t *lp; 4759 line_t *freed; 4760 entry_t *ent; 4761 entry_t *tmp; 4762 int deleted = 0; 4763 const char *fcn = "delete_boot_entry()"; 4764 4765 assert(entryNum != ENTRY_INIT); 4766 4767 tmp = NULL; 4768 4769 ent = mp->entries; 4770 while (ent) { 4771 lp = ent->start; 4772 4773 /* 4774 * Check entry number and make sure it's a modifiable entry. 4775 * 4776 * Guidelines: 4777 * + We can modify a bootadm-created entry 4778 * + We can modify a libbe-created entry 4779 */ 4780 if ((lp->flags != BAM_COMMENT && 4781 (((ent->flags & BAM_ENTRY_LIBBE) == 0) && 4782 strcmp(lp->arg, BAM_BOOTADM_HDR) != 0)) || 4783 (entryNum != ALL_ENTRIES && lp->entryNum != entryNum)) { 4784 ent = ent->next; 4785 continue; 4786 } 4787 4788 /* free the entry content */ 4789 do { 4790 freed = lp; 4791 lp = lp->next; /* prev stays the same */ 4792 BAM_DPRINTF((D_FREEING_LINE, fcn, freed->lineNum)); 4793 unlink_line(mp, freed); 4794 line_free(freed); 4795 } while (freed != ent->end); 4796 4797 /* free the entry_t structure */ 4798 assert(tmp == NULL); 4799 tmp = ent; 4800 ent = ent->next; 4801 if (tmp->prev) 4802 tmp->prev->next = ent; 4803 else 4804 mp->entries = ent; 4805 if (ent) 4806 ent->prev = tmp->prev; 4807 BAM_DPRINTF((D_FREEING_ENTRY, fcn, tmp->entryNum)); 4808 free(tmp); 4809 tmp = NULL; 4810 deleted = 1; 4811 } 4812 4813 assert(tmp == NULL); 4814 4815 if (!deleted && entryNum != ALL_ENTRIES) { 4816 if (quiet == DBE_PRINTERR) 4817 bam_error(NO_BOOTADM_MATCH); 4818 return (BAM_ERROR); 4819 } 4820 4821 /* 4822 * Now that we have deleted an entry, update 4823 * the entry numbering and the default cmd. 4824 */ 4825 update_numbering(mp); 4826 4827 return (BAM_SUCCESS); 4828 } 4829 4830 static error_t 4831 delete_all_entries(menu_t *mp, char *dummy, char *opt) 4832 { 4833 assert(mp); 4834 assert(dummy == NULL); 4835 assert(opt == NULL); 4836 4837 BAM_DPRINTF((D_FUNC_ENTRY0, "delete_all_entries")); 4838 4839 if (mp->start == NULL) { 4840 bam_print(EMPTY_MENU); 4841 return (BAM_SUCCESS); 4842 } 4843 4844 if (delete_boot_entry(mp, ALL_ENTRIES, DBE_PRINTERR) != BAM_SUCCESS) { 4845 return (BAM_ERROR); 4846 } 4847 4848 return (BAM_WRITE); 4849 } 4850 4851 static FILE * 4852 create_diskmap(char *osroot) 4853 { 4854 FILE *fp; 4855 char cmd[PATH_MAX + 16]; 4856 char path[PATH_MAX]; 4857 const char *fcn = "create_diskmap()"; 4858 4859 /* make sure we have a map file */ 4860 fp = fopen(GRUBDISK_MAP, "r"); 4861 if (fp == NULL) { 4862 int ret; 4863 4864 ret = snprintf(path, sizeof (path), "%s/%s", osroot, 4865 CREATE_DISKMAP); 4866 if (ret >= sizeof (path)) { 4867 bam_error(PATH_TOO_LONG, osroot); 4868 return (NULL); 4869 } 4870 if (is_safe_exec(path) == BAM_ERROR) 4871 return (NULL); 4872 4873 (void) snprintf(cmd, sizeof (cmd), 4874 "%s/%s > /dev/null", osroot, CREATE_DISKMAP); 4875 if (exec_cmd(cmd, NULL) != 0) 4876 return (NULL); 4877 fp = fopen(GRUBDISK_MAP, "r"); 4878 INJECT_ERROR1("DISKMAP_CREATE_FAIL", fp = NULL); 4879 if (fp) { 4880 BAM_DPRINTF((D_CREATED_DISKMAP, fcn, GRUBDISK_MAP)); 4881 } else { 4882 BAM_DPRINTF((D_CREATE_DISKMAP_FAIL, fcn, GRUBDISK_MAP)); 4883 } 4884 } 4885 return (fp); 4886 } 4887 4888 #define SECTOR_SIZE 512 4889 4890 static int 4891 get_partition(char *device) 4892 { 4893 int i, fd, is_pcfs, partno = -1; 4894 struct mboot *mboot; 4895 char boot_sect[SECTOR_SIZE]; 4896 char *wholedisk, *slice; 4897 #ifdef i386 4898 ext_part_t *epp; 4899 uint32_t secnum, numsec; 4900 int rval, pno, ext_partno = -1; 4901 #endif 4902 4903 /* form whole disk (p0) */ 4904 slice = device + strlen(device) - 2; 4905 is_pcfs = (*slice != 's'); 4906 if (!is_pcfs) 4907 *slice = '\0'; 4908 wholedisk = s_calloc(1, strlen(device) + 3); 4909 (void) snprintf(wholedisk, strlen(device) + 3, "%sp0", device); 4910 if (!is_pcfs) 4911 *slice = 's'; 4912 4913 /* read boot sector */ 4914 fd = open(wholedisk, O_RDONLY); 4915 if (fd == -1 || read(fd, boot_sect, SECTOR_SIZE) != SECTOR_SIZE) { 4916 return (partno); 4917 } 4918 (void) close(fd); 4919 4920 #ifdef i386 4921 /* Read/Initialize extended partition information */ 4922 if ((rval = libfdisk_init(&epp, wholedisk, NULL, FDISK_READ_DISK)) 4923 != FDISK_SUCCESS) { 4924 switch (rval) { 4925 /* 4926 * FDISK_EBADLOGDRIVE and FDISK_ENOLOGDRIVE can 4927 * be considered as soft errors and hence 4928 * we do not return 4929 */ 4930 case FDISK_EBADLOGDRIVE: 4931 break; 4932 case FDISK_ENOLOGDRIVE: 4933 break; 4934 case FDISK_EBADMAGIC: 4935 /*FALLTHROUGH*/ 4936 default: 4937 free(wholedisk); 4938 libfdisk_fini(&epp); 4939 return (partno); 4940 break; 4941 } 4942 } 4943 #endif 4944 free(wholedisk); 4945 4946 /* parse fdisk table */ 4947 mboot = (struct mboot *)((void *)boot_sect); 4948 for (i = 0; i < FD_NUMPART; i++) { 4949 struct ipart *part = 4950 (struct ipart *)(uintptr_t)mboot->parts + i; 4951 if (is_pcfs) { /* looking for solaris boot part */ 4952 if (part->systid == 0xbe) { 4953 partno = i; 4954 break; 4955 } 4956 } else { /* look for solaris partition, old and new */ 4957 #ifdef i386 4958 if ((part->systid == SUNIXOS && 4959 (fdisk_is_linux_swap(epp, part->relsect, 4960 NULL) != 0)) || part->systid == SUNIXOS2) { 4961 #else 4962 if (part->systid == SUNIXOS || 4963 part->systid == SUNIXOS2) { 4964 #endif 4965 partno = i; 4966 break; 4967 } 4968 4969 #ifdef i386 4970 if (fdisk_is_dos_extended(part->systid)) 4971 ext_partno = i; 4972 #endif 4973 } 4974 } 4975 #ifdef i386 4976 /* If no primary solaris partition, check extended partition */ 4977 if ((partno == -1) && (ext_partno != -1)) { 4978 rval = fdisk_get_solaris_part(epp, &pno, &secnum, &numsec); 4979 if (rval == FDISK_SUCCESS) { 4980 partno = pno - 1; 4981 } 4982 } 4983 libfdisk_fini(&epp); 4984 #endif 4985 return (partno); 4986 } 4987 4988 char * 4989 get_grubroot(char *osroot, char *osdev, char *menu_root) 4990 { 4991 char *grubroot; /* (hd#,#,#) */ 4992 char *slice; 4993 char *grubhd; 4994 int fdiskpart; 4995 int found = 0; 4996 char *devname; 4997 char *ctdname = strstr(osdev, "dsk/"); 4998 char linebuf[PATH_MAX]; 4999 FILE *fp; 5000 5001 INJECT_ERROR1("GRUBROOT_INVALID_OSDEV", ctdname = NULL); 5002 if (ctdname == NULL) { 5003 bam_error(INVALID_DEV_DSK, osdev); 5004 return (NULL); 5005 } 5006 5007 if (menu_root && !menu_on_bootdisk(osroot, menu_root)) { 5008 /* menu bears no resemblance to our reality */ 5009 bam_error(CANNOT_GRUBROOT_BOOTDISK, osdev); 5010 return (NULL); 5011 } 5012 5013 ctdname += strlen("dsk/"); 5014 slice = strrchr(ctdname, 's'); 5015 if (slice) 5016 *slice = '\0'; 5017 5018 fp = create_diskmap(osroot); 5019 if (fp == NULL) { 5020 bam_error(DISKMAP_FAIL, osroot); 5021 return (NULL); 5022 } 5023 5024 rewind(fp); 5025 while (s_fgets(linebuf, sizeof (linebuf), fp) != NULL) { 5026 grubhd = strtok(linebuf, " \t\n"); 5027 if (grubhd) 5028 devname = strtok(NULL, " \t\n"); 5029 else 5030 devname = NULL; 5031 if (devname && strcmp(devname, ctdname) == 0) { 5032 found = 1; 5033 break; 5034 } 5035 } 5036 5037 if (slice) 5038 *slice = 's'; 5039 5040 (void) fclose(fp); 5041 fp = NULL; 5042 5043 INJECT_ERROR1("GRUBROOT_BIOSDEV_FAIL", found = 0); 5044 if (found == 0) { 5045 bam_error(BIOSDEV_SKIP, osdev); 5046 return (NULL); 5047 } 5048 5049 fdiskpart = get_partition(osdev); 5050 INJECT_ERROR1("GRUBROOT_FDISK_FAIL", fdiskpart = -1); 5051 if (fdiskpart == -1) { 5052 bam_error(FDISKPART_FAIL, osdev); 5053 return (NULL); 5054 } 5055 5056 grubroot = s_calloc(1, 10); 5057 if (slice) { 5058 (void) snprintf(grubroot, 10, "(hd%s,%d,%c)", 5059 grubhd, fdiskpart, slice[1] + 'a' - '0'); 5060 } else 5061 (void) snprintf(grubroot, 10, "(hd%s,%d)", 5062 grubhd, fdiskpart); 5063 5064 assert(fp == NULL); 5065 assert(strncmp(grubroot, "(hd", strlen("(hd")) == 0); 5066 return (grubroot); 5067 } 5068 5069 static char * 5070 find_primary_common(char *mntpt, char *fstype) 5071 { 5072 char signdir[PATH_MAX]; 5073 char tmpsign[MAXNAMELEN + 1]; 5074 char *lu; 5075 char *ufs; 5076 char *zfs; 5077 DIR *dirp = NULL; 5078 struct dirent *entp; 5079 struct stat sb; 5080 const char *fcn = "find_primary_common()"; 5081 5082 (void) snprintf(signdir, sizeof (signdir), "%s/%s", 5083 mntpt, GRUBSIGN_DIR); 5084 5085 if (stat(signdir, &sb) == -1) { 5086 BAM_DPRINTF((D_NO_SIGNDIR, fcn, signdir)); 5087 return (NULL); 5088 } 5089 5090 dirp = opendir(signdir); 5091 INJECT_ERROR1("SIGNDIR_OPENDIR_FAIL", dirp = NULL); 5092 if (dirp == NULL) { 5093 bam_error(OPENDIR_FAILED, signdir, strerror(errno)); 5094 return (NULL); 5095 } 5096 5097 ufs = zfs = lu = NULL; 5098 5099 while (entp = readdir(dirp)) { 5100 if (strcmp(entp->d_name, ".") == 0 || 5101 strcmp(entp->d_name, "..") == 0) 5102 continue; 5103 5104 (void) snprintf(tmpsign, sizeof (tmpsign), "%s", entp->d_name); 5105 5106 if (lu == NULL && 5107 strncmp(tmpsign, GRUBSIGN_LU_PREFIX, 5108 strlen(GRUBSIGN_LU_PREFIX)) == 0) { 5109 lu = s_strdup(tmpsign); 5110 } 5111 5112 if (ufs == NULL && 5113 strncmp(tmpsign, GRUBSIGN_UFS_PREFIX, 5114 strlen(GRUBSIGN_UFS_PREFIX)) == 0) { 5115 ufs = s_strdup(tmpsign); 5116 } 5117 5118 if (zfs == NULL && 5119 strncmp(tmpsign, GRUBSIGN_ZFS_PREFIX, 5120 strlen(GRUBSIGN_ZFS_PREFIX)) == 0) { 5121 zfs = s_strdup(tmpsign); 5122 } 5123 } 5124 5125 BAM_DPRINTF((D_EXIST_PRIMARY_SIGNS, fcn, 5126 zfs ? zfs : "NULL", 5127 ufs ? ufs : "NULL", 5128 lu ? lu : "NULL")); 5129 5130 if (dirp) { 5131 (void) closedir(dirp); 5132 dirp = NULL; 5133 } 5134 5135 if (strcmp(fstype, "ufs") == 0 && zfs) { 5136 bam_error(SIGN_FSTYPE_MISMATCH, zfs, "ufs"); 5137 free(zfs); 5138 zfs = NULL; 5139 } else if (strcmp(fstype, "zfs") == 0 && ufs) { 5140 bam_error(SIGN_FSTYPE_MISMATCH, ufs, "zfs"); 5141 free(ufs); 5142 ufs = NULL; 5143 } 5144 5145 assert(dirp == NULL); 5146 5147 /* For now, we let Live Upgrade take care of its signature itself */ 5148 if (lu) { 5149 BAM_DPRINTF((D_FREEING_LU_SIGNS, fcn, lu)); 5150 free(lu); 5151 lu = NULL; 5152 } 5153 5154 return (zfs ? zfs : ufs); 5155 } 5156 5157 static char * 5158 find_backup_common(char *mntpt, char *fstype) 5159 { 5160 FILE *bfp = NULL; 5161 char tmpsign[MAXNAMELEN + 1]; 5162 char backup[PATH_MAX]; 5163 char *ufs; 5164 char *zfs; 5165 char *lu; 5166 int error; 5167 const char *fcn = "find_backup_common()"; 5168 5169 /* 5170 * We didn't find it in the primary directory. 5171 * Look at the backup 5172 */ 5173 (void) snprintf(backup, sizeof (backup), "%s%s", 5174 mntpt, GRUBSIGN_BACKUP); 5175 5176 bfp = fopen(backup, "r"); 5177 if (bfp == NULL) { 5178 error = errno; 5179 if (bam_verbose) { 5180 bam_error(OPEN_FAIL, backup, strerror(error)); 5181 } 5182 BAM_DPRINTF((D_OPEN_FAIL, fcn, backup, strerror(error))); 5183 return (NULL); 5184 } 5185 5186 ufs = zfs = lu = NULL; 5187 5188 while (s_fgets(tmpsign, sizeof (tmpsign), bfp) != NULL) { 5189 5190 if (lu == NULL && 5191 strncmp(tmpsign, GRUBSIGN_LU_PREFIX, 5192 strlen(GRUBSIGN_LU_PREFIX)) == 0) { 5193 lu = s_strdup(tmpsign); 5194 } 5195 5196 if (ufs == NULL && 5197 strncmp(tmpsign, GRUBSIGN_UFS_PREFIX, 5198 strlen(GRUBSIGN_UFS_PREFIX)) == 0) { 5199 ufs = s_strdup(tmpsign); 5200 } 5201 5202 if (zfs == NULL && 5203 strncmp(tmpsign, GRUBSIGN_ZFS_PREFIX, 5204 strlen(GRUBSIGN_ZFS_PREFIX)) == 0) { 5205 zfs = s_strdup(tmpsign); 5206 } 5207 } 5208 5209 BAM_DPRINTF((D_EXIST_BACKUP_SIGNS, fcn, 5210 zfs ? zfs : "NULL", 5211 ufs ? ufs : "NULL", 5212 lu ? lu : "NULL")); 5213 5214 if (bfp) { 5215 (void) fclose(bfp); 5216 bfp = NULL; 5217 } 5218 5219 if (strcmp(fstype, "ufs") == 0 && zfs) { 5220 bam_error(SIGN_FSTYPE_MISMATCH, zfs, "ufs"); 5221 free(zfs); 5222 zfs = NULL; 5223 } else if (strcmp(fstype, "zfs") == 0 && ufs) { 5224 bam_error(SIGN_FSTYPE_MISMATCH, ufs, "zfs"); 5225 free(ufs); 5226 ufs = NULL; 5227 } 5228 5229 assert(bfp == NULL); 5230 5231 /* For now, we let Live Upgrade take care of its signature itself */ 5232 if (lu) { 5233 BAM_DPRINTF((D_FREEING_LU_SIGNS, fcn, lu)); 5234 free(lu); 5235 lu = NULL; 5236 } 5237 5238 return (zfs ? zfs : ufs); 5239 } 5240 5241 static char * 5242 find_ufs_existing(char *osroot) 5243 { 5244 char *sign; 5245 const char *fcn = "find_ufs_existing()"; 5246 5247 sign = find_primary_common(osroot, "ufs"); 5248 if (sign == NULL) { 5249 sign = find_backup_common(osroot, "ufs"); 5250 BAM_DPRINTF((D_EXIST_BACKUP_SIGN, fcn, sign ? sign : "NULL")); 5251 } else { 5252 BAM_DPRINTF((D_EXIST_PRIMARY_SIGN, fcn, sign)); 5253 } 5254 5255 return (sign); 5256 } 5257 5258 char * 5259 get_mountpoint(char *special, char *fstype) 5260 { 5261 FILE *mntfp; 5262 struct mnttab mp = {0}; 5263 struct mnttab mpref = {0}; 5264 int error; 5265 int ret; 5266 const char *fcn = "get_mountpoint()"; 5267 5268 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, special, fstype)); 5269 5270 mntfp = fopen(MNTTAB, "r"); 5271 error = errno; 5272 INJECT_ERROR1("MNTTAB_ERR_GET_MNTPT", mntfp = NULL); 5273 if (mntfp == NULL) { 5274 bam_error(OPEN_FAIL, MNTTAB, strerror(error)); 5275 return (NULL); 5276 } 5277 5278 mpref.mnt_special = special; 5279 mpref.mnt_fstype = fstype; 5280 5281 ret = getmntany(mntfp, &mp, &mpref); 5282 INJECT_ERROR1("GET_MOUNTPOINT_MNTANY", ret = 1); 5283 if (ret != 0) { 5284 (void) fclose(mntfp); 5285 BAM_DPRINTF((D_NO_MNTPT, fcn, special, fstype)); 5286 return (NULL); 5287 } 5288 (void) fclose(mntfp); 5289 5290 assert(mp.mnt_mountp); 5291 5292 BAM_DPRINTF((D_GET_MOUNTPOINT_RET, fcn, special, mp.mnt_mountp)); 5293 5294 return (s_strdup(mp.mnt_mountp)); 5295 } 5296 5297 /* 5298 * Mounts a "legacy" top dataset (if needed) 5299 * Returns: The mountpoint of the legacy top dataset or NULL on error 5300 * mnted returns one of the above values defined for zfs_mnted_t 5301 */ 5302 static char * 5303 mount_legacy_dataset(char *pool, zfs_mnted_t *mnted) 5304 { 5305 char cmd[PATH_MAX]; 5306 char tmpmnt[PATH_MAX]; 5307 filelist_t flist = {0}; 5308 char *is_mounted; 5309 struct stat sb; 5310 int ret; 5311 const char *fcn = "mount_legacy_dataset()"; 5312 5313 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, pool)); 5314 5315 *mnted = ZFS_MNT_ERROR; 5316 5317 (void) snprintf(cmd, sizeof (cmd), 5318 "/sbin/zfs get -Ho value mounted %s", 5319 pool); 5320 5321 ret = exec_cmd(cmd, &flist); 5322 INJECT_ERROR1("Z_MOUNT_LEG_GET_MOUNTED_CMD", ret = 1); 5323 if (ret != 0) { 5324 bam_error(ZFS_MNTED_FAILED, pool); 5325 return (NULL); 5326 } 5327 5328 INJECT_ERROR1("Z_MOUNT_LEG_GET_MOUNTED_OUT", flist.head = NULL); 5329 if ((flist.head == NULL) || (flist.head != flist.tail)) { 5330 bam_error(BAD_ZFS_MNTED, pool); 5331 filelist_free(&flist); 5332 return (NULL); 5333 } 5334 5335 is_mounted = strtok(flist.head->line, " \t\n"); 5336 INJECT_ERROR1("Z_MOUNT_LEG_GET_MOUNTED_STRTOK_YES", is_mounted = "yes"); 5337 INJECT_ERROR1("Z_MOUNT_LEG_GET_MOUNTED_STRTOK_NO", is_mounted = "no"); 5338 if (strcmp(is_mounted, "no") != 0) { 5339 filelist_free(&flist); 5340 *mnted = LEGACY_ALREADY; 5341 /* get_mountpoint returns a strdup'ed string */ 5342 BAM_DPRINTF((D_Z_MOUNT_TOP_LEG_ALREADY, fcn, pool)); 5343 return (get_mountpoint(pool, "zfs")); 5344 } 5345 5346 filelist_free(&flist); 5347 5348 /* 5349 * legacy top dataset is not mounted. Mount it now 5350 * First create a mountpoint. 5351 */ 5352 (void) snprintf(tmpmnt, sizeof (tmpmnt), "%s.%d", 5353 ZFS_LEGACY_MNTPT, getpid()); 5354 5355 ret = stat(tmpmnt, &sb); 5356 if (ret == -1) { 5357 BAM_DPRINTF((D_Z_MOUNT_TOP_LEG_MNTPT_ABS, fcn, pool, tmpmnt)); 5358 ret = mkdirp(tmpmnt, DIR_PERMS); 5359 INJECT_ERROR1("Z_MOUNT_TOP_LEG_MNTPT_MKDIRP", ret = -1); 5360 if (ret == -1) { 5361 bam_error(MKDIR_FAILED, tmpmnt, strerror(errno)); 5362 return (NULL); 5363 } 5364 } else { 5365 BAM_DPRINTF((D_Z_MOUNT_TOP_LEG_MNTPT_PRES, fcn, pool, tmpmnt)); 5366 } 5367 5368 (void) snprintf(cmd, sizeof (cmd), 5369 "/sbin/mount -F zfs %s %s", 5370 pool, tmpmnt); 5371 5372 ret = exec_cmd(cmd, NULL); 5373 INJECT_ERROR1("Z_MOUNT_TOP_LEG_MOUNT_CMD", ret = 1); 5374 if (ret != 0) { 5375 bam_error(ZFS_MOUNT_FAILED, pool); 5376 (void) rmdir(tmpmnt); 5377 return (NULL); 5378 } 5379 5380 *mnted = LEGACY_MOUNTED; 5381 BAM_DPRINTF((D_Z_MOUNT_TOP_LEG_MOUNTED, fcn, pool, tmpmnt)); 5382 return (s_strdup(tmpmnt)); 5383 } 5384 5385 /* 5386 * Mounts the top dataset (if needed) 5387 * Returns: The mountpoint of the top dataset or NULL on error 5388 * mnted returns one of the above values defined for zfs_mnted_t 5389 */ 5390 static char * 5391 mount_top_dataset(char *pool, zfs_mnted_t *mnted) 5392 { 5393 char cmd[PATH_MAX]; 5394 filelist_t flist = {0}; 5395 char *is_mounted; 5396 char *mntpt; 5397 char *zmntpt; 5398 int ret; 5399 const char *fcn = "mount_top_dataset()"; 5400 5401 *mnted = ZFS_MNT_ERROR; 5402 5403 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, pool)); 5404 5405 /* 5406 * First check if the top dataset is a "legacy" dataset 5407 */ 5408 (void) snprintf(cmd, sizeof (cmd), 5409 "/sbin/zfs get -Ho value mountpoint %s", 5410 pool); 5411 ret = exec_cmd(cmd, &flist); 5412 INJECT_ERROR1("Z_MOUNT_TOP_GET_MNTPT", ret = 1); 5413 if (ret != 0) { 5414 bam_error(ZFS_MNTPT_FAILED, pool); 5415 return (NULL); 5416 } 5417 5418 if (flist.head && (flist.head == flist.tail)) { 5419 char *legacy = strtok(flist.head->line, " \t\n"); 5420 if (legacy && strcmp(legacy, "legacy") == 0) { 5421 filelist_free(&flist); 5422 BAM_DPRINTF((D_Z_IS_LEGACY, fcn, pool)); 5423 return (mount_legacy_dataset(pool, mnted)); 5424 } 5425 } 5426 5427 filelist_free(&flist); 5428 5429 BAM_DPRINTF((D_Z_IS_NOT_LEGACY, fcn, pool)); 5430 5431 (void) snprintf(cmd, sizeof (cmd), 5432 "/sbin/zfs get -Ho value mounted %s", 5433 pool); 5434 5435 ret = exec_cmd(cmd, &flist); 5436 INJECT_ERROR1("Z_MOUNT_TOP_NONLEG_GET_MOUNTED", ret = 1); 5437 if (ret != 0) { 5438 bam_error(ZFS_MNTED_FAILED, pool); 5439 return (NULL); 5440 } 5441 5442 INJECT_ERROR1("Z_MOUNT_TOP_NONLEG_GET_MOUNTED_VAL", flist.head = NULL); 5443 if ((flist.head == NULL) || (flist.head != flist.tail)) { 5444 bam_error(BAD_ZFS_MNTED, pool); 5445 filelist_free(&flist); 5446 return (NULL); 5447 } 5448 5449 is_mounted = strtok(flist.head->line, " \t\n"); 5450 INJECT_ERROR1("Z_MOUNT_TOP_NONLEG_GET_MOUNTED_YES", is_mounted = "yes"); 5451 INJECT_ERROR1("Z_MOUNT_TOP_NONLEG_GET_MOUNTED_NO", is_mounted = "no"); 5452 if (strcmp(is_mounted, "no") != 0) { 5453 filelist_free(&flist); 5454 *mnted = ZFS_ALREADY; 5455 BAM_DPRINTF((D_Z_MOUNT_TOP_NONLEG_MOUNTED_ALREADY, fcn, pool)); 5456 goto mounted; 5457 } 5458 5459 filelist_free(&flist); 5460 BAM_DPRINTF((D_Z_MOUNT_TOP_NONLEG_MOUNTED_NOT_ALREADY, fcn, pool)); 5461 5462 /* top dataset is not mounted. Mount it now */ 5463 (void) snprintf(cmd, sizeof (cmd), 5464 "/sbin/zfs mount %s", pool); 5465 ret = exec_cmd(cmd, NULL); 5466 INJECT_ERROR1("Z_MOUNT_TOP_NONLEG_MOUNT_CMD", ret = 1); 5467 if (ret != 0) { 5468 bam_error(ZFS_MOUNT_FAILED, pool); 5469 return (NULL); 5470 } 5471 *mnted = ZFS_MOUNTED; 5472 BAM_DPRINTF((D_Z_MOUNT_TOP_NONLEG_MOUNTED_NOW, fcn, pool)); 5473 /*FALLTHRU*/ 5474 mounted: 5475 /* 5476 * Now get the mountpoint 5477 */ 5478 (void) snprintf(cmd, sizeof (cmd), 5479 "/sbin/zfs get -Ho value mountpoint %s", 5480 pool); 5481 5482 ret = exec_cmd(cmd, &flist); 5483 INJECT_ERROR1("Z_MOUNT_TOP_NONLEG_GET_MNTPT_CMD", ret = 1); 5484 if (ret != 0) { 5485 bam_error(ZFS_MNTPT_FAILED, pool); 5486 goto error; 5487 } 5488 5489 INJECT_ERROR1("Z_MOUNT_TOP_NONLEG_GET_MNTPT_OUT", flist.head = NULL); 5490 if ((flist.head == NULL) || (flist.head != flist.tail)) { 5491 bam_error(NULL_ZFS_MNTPT, pool); 5492 goto error; 5493 } 5494 5495 mntpt = strtok(flist.head->line, " \t\n"); 5496 INJECT_ERROR1("Z_MOUNT_TOP_NONLEG_GET_MNTPT_STRTOK", mntpt = "foo"); 5497 if (*mntpt != '/') { 5498 bam_error(BAD_ZFS_MNTPT, pool, mntpt); 5499 goto error; 5500 } 5501 zmntpt = s_strdup(mntpt); 5502 5503 filelist_free(&flist); 5504 5505 BAM_DPRINTF((D_Z_MOUNT_TOP_NONLEG_MNTPT, fcn, pool, zmntpt)); 5506 5507 return (zmntpt); 5508 5509 error: 5510 filelist_free(&flist); 5511 (void) umount_top_dataset(pool, *mnted, NULL); 5512 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 5513 return (NULL); 5514 } 5515 5516 static int 5517 umount_top_dataset(char *pool, zfs_mnted_t mnted, char *mntpt) 5518 { 5519 char cmd[PATH_MAX]; 5520 int ret; 5521 const char *fcn = "umount_top_dataset()"; 5522 5523 INJECT_ERROR1("Z_UMOUNT_TOP_INVALID_STATE", mnted = ZFS_MNT_ERROR); 5524 switch (mnted) { 5525 case LEGACY_ALREADY: 5526 case ZFS_ALREADY: 5527 /* nothing to do */ 5528 BAM_DPRINTF((D_Z_UMOUNT_TOP_ALREADY_NOP, fcn, pool, 5529 mntpt ? mntpt : "NULL")); 5530 free(mntpt); 5531 return (BAM_SUCCESS); 5532 case LEGACY_MOUNTED: 5533 (void) snprintf(cmd, sizeof (cmd), 5534 "/sbin/umount %s", pool); 5535 ret = exec_cmd(cmd, NULL); 5536 INJECT_ERROR1("Z_UMOUNT_TOP_LEGACY_UMOUNT_FAIL", ret = 1); 5537 if (ret != 0) { 5538 bam_error(UMOUNT_FAILED, pool); 5539 free(mntpt); 5540 return (BAM_ERROR); 5541 } 5542 if (mntpt) 5543 (void) rmdir(mntpt); 5544 free(mntpt); 5545 BAM_DPRINTF((D_Z_UMOUNT_TOP_LEGACY, fcn, pool)); 5546 return (BAM_SUCCESS); 5547 case ZFS_MOUNTED: 5548 free(mntpt); 5549 (void) snprintf(cmd, sizeof (cmd), 5550 "/sbin/zfs unmount %s", pool); 5551 ret = exec_cmd(cmd, NULL); 5552 INJECT_ERROR1("Z_UMOUNT_TOP_NONLEG_UMOUNT_FAIL", ret = 1); 5553 if (ret != 0) { 5554 bam_error(UMOUNT_FAILED, pool); 5555 return (BAM_ERROR); 5556 } 5557 BAM_DPRINTF((D_Z_UMOUNT_TOP_NONLEG, fcn, pool)); 5558 return (BAM_SUCCESS); 5559 default: 5560 bam_error(INT_BAD_MNTSTATE, pool); 5561 return (BAM_ERROR); 5562 } 5563 /*NOTREACHED*/ 5564 } 5565 5566 /* 5567 * For ZFS, osdev can be one of two forms 5568 * It can be a "special" file as seen in mnttab: rpool/ROOT/szboot_0402 5569 * It can be a /dev/[r]dsk special file. We handle both instances 5570 */ 5571 static char * 5572 get_pool(char *osdev) 5573 { 5574 char cmd[PATH_MAX]; 5575 char buf[PATH_MAX]; 5576 filelist_t flist = {0}; 5577 char *pool; 5578 char *cp; 5579 char *slash; 5580 int ret; 5581 const char *fcn = "get_pool()"; 5582 5583 INJECT_ERROR1("GET_POOL_OSDEV", osdev = NULL); 5584 if (osdev == NULL) { 5585 bam_error(GET_POOL_OSDEV_NULL); 5586 return (NULL); 5587 } 5588 5589 BAM_DPRINTF((D_GET_POOL_OSDEV, fcn, osdev)); 5590 5591 if (osdev[0] != '/') { 5592 (void) strlcpy(buf, osdev, sizeof (buf)); 5593 slash = strchr(buf, '/'); 5594 if (slash) 5595 *slash = '\0'; 5596 pool = s_strdup(buf); 5597 BAM_DPRINTF((D_GET_POOL_RET, fcn, pool)); 5598 return (pool); 5599 } else if (strncmp(osdev, "/dev/dsk/", strlen("/dev/dsk/")) != 0 && 5600 strncmp(osdev, "/dev/rdsk/", strlen("/dev/rdsk/")) != 0) { 5601 bam_error(GET_POOL_BAD_OSDEV, osdev); 5602 return (NULL); 5603 } 5604 5605 (void) snprintf(cmd, sizeof (cmd), 5606 "/usr/sbin/fstyp -a %s 2>/dev/null | /bin/grep '^name:'", 5607 osdev); 5608 5609 ret = exec_cmd(cmd, &flist); 5610 INJECT_ERROR1("GET_POOL_FSTYP", ret = 1); 5611 if (ret != 0) { 5612 bam_error(FSTYP_A_FAILED, osdev); 5613 return (NULL); 5614 } 5615 5616 INJECT_ERROR1("GET_POOL_FSTYP_OUT", flist.head = NULL); 5617 if ((flist.head == NULL) || (flist.head != flist.tail)) { 5618 bam_error(NULL_FSTYP_A, osdev); 5619 filelist_free(&flist); 5620 return (NULL); 5621 } 5622 5623 (void) strtok(flist.head->line, "'"); 5624 cp = strtok(NULL, "'"); 5625 INJECT_ERROR1("GET_POOL_FSTYP_STRTOK", cp = NULL); 5626 if (cp == NULL) { 5627 bam_error(BAD_FSTYP_A, osdev); 5628 filelist_free(&flist); 5629 return (NULL); 5630 } 5631 5632 pool = s_strdup(cp); 5633 5634 filelist_free(&flist); 5635 5636 BAM_DPRINTF((D_GET_POOL_RET, fcn, pool)); 5637 5638 return (pool); 5639 } 5640 5641 static char * 5642 find_zfs_existing(char *osdev) 5643 { 5644 char *pool; 5645 zfs_mnted_t mnted; 5646 char *mntpt; 5647 char *sign; 5648 const char *fcn = "find_zfs_existing()"; 5649 5650 pool = get_pool(osdev); 5651 INJECT_ERROR1("ZFS_FIND_EXIST_POOL", pool = NULL); 5652 if (pool == NULL) { 5653 bam_error(ZFS_GET_POOL_FAILED, osdev); 5654 return (NULL); 5655 } 5656 5657 mntpt = mount_top_dataset(pool, &mnted); 5658 INJECT_ERROR1("ZFS_FIND_EXIST_MOUNT_TOP", mntpt = NULL); 5659 if (mntpt == NULL) { 5660 bam_error(ZFS_MOUNT_TOP_DATASET_FAILED, pool); 5661 free(pool); 5662 return (NULL); 5663 } 5664 5665 sign = find_primary_common(mntpt, "zfs"); 5666 if (sign == NULL) { 5667 sign = find_backup_common(mntpt, "zfs"); 5668 BAM_DPRINTF((D_EXIST_BACKUP_SIGN, fcn, sign ? sign : "NULL")); 5669 } else { 5670 BAM_DPRINTF((D_EXIST_PRIMARY_SIGN, fcn, sign)); 5671 } 5672 5673 (void) umount_top_dataset(pool, mnted, mntpt); 5674 5675 free(pool); 5676 5677 return (sign); 5678 } 5679 5680 static char * 5681 find_existing_sign(char *osroot, char *osdev, char *fstype) 5682 { 5683 const char *fcn = "find_existing_sign()"; 5684 5685 INJECT_ERROR1("FIND_EXIST_NOTSUP_FS", fstype = "foofs"); 5686 if (strcmp(fstype, "ufs") == 0) { 5687 BAM_DPRINTF((D_CHECK_UFS_EXIST_SIGN, fcn)); 5688 return (find_ufs_existing(osroot)); 5689 } else if (strcmp(fstype, "zfs") == 0) { 5690 BAM_DPRINTF((D_CHECK_ZFS_EXIST_SIGN, fcn)); 5691 return (find_zfs_existing(osdev)); 5692 } else { 5693 bam_error(GRUBSIGN_NOTSUP, fstype); 5694 return (NULL); 5695 } 5696 } 5697 5698 #define MH_HASH_SZ 16 5699 5700 typedef enum { 5701 MH_ERROR = -1, 5702 MH_NOMATCH, 5703 MH_MATCH 5704 } mh_search_t; 5705 5706 typedef struct mcache { 5707 char *mc_special; 5708 char *mc_mntpt; 5709 char *mc_fstype; 5710 struct mcache *mc_next; 5711 } mcache_t; 5712 5713 typedef struct mhash { 5714 mcache_t *mh_hash[MH_HASH_SZ]; 5715 } mhash_t; 5716 5717 static int 5718 mhash_fcn(char *key) 5719 { 5720 int i; 5721 uint64_t sum = 0; 5722 5723 for (i = 0; key[i] != '\0'; i++) { 5724 sum += (uchar_t)key[i]; 5725 } 5726 5727 sum %= MH_HASH_SZ; 5728 5729 assert(sum < MH_HASH_SZ); 5730 5731 return (sum); 5732 } 5733 5734 static mhash_t * 5735 cache_mnttab(void) 5736 { 5737 FILE *mfp; 5738 struct extmnttab mnt; 5739 mcache_t *mcp; 5740 mhash_t *mhp; 5741 char *ctds; 5742 int idx; 5743 int error; 5744 char *special_dup; 5745 const char *fcn = "cache_mnttab()"; 5746 5747 mfp = fopen(MNTTAB, "r"); 5748 error = errno; 5749 INJECT_ERROR1("CACHE_MNTTAB_MNTTAB_ERR", mfp = NULL); 5750 if (mfp == NULL) { 5751 bam_error(OPEN_FAIL, MNTTAB, strerror(error)); 5752 return (NULL); 5753 } 5754 5755 mhp = s_calloc(1, sizeof (mhash_t)); 5756 5757 resetmnttab(mfp); 5758 5759 while (getextmntent(mfp, &mnt, sizeof (mnt)) == 0) { 5760 /* only cache ufs */ 5761 if (strcmp(mnt.mnt_fstype, "ufs") != 0) 5762 continue; 5763 5764 /* basename() modifies its arg, so dup it */ 5765 special_dup = s_strdup(mnt.mnt_special); 5766 ctds = basename(special_dup); 5767 5768 mcp = s_calloc(1, sizeof (mcache_t)); 5769 mcp->mc_special = s_strdup(ctds); 5770 mcp->mc_mntpt = s_strdup(mnt.mnt_mountp); 5771 mcp->mc_fstype = s_strdup(mnt.mnt_fstype); 5772 BAM_DPRINTF((D_CACHE_MNTS, fcn, ctds, 5773 mnt.mnt_mountp, mnt.mnt_fstype)); 5774 idx = mhash_fcn(ctds); 5775 mcp->mc_next = mhp->mh_hash[idx]; 5776 mhp->mh_hash[idx] = mcp; 5777 free(special_dup); 5778 } 5779 5780 (void) fclose(mfp); 5781 5782 return (mhp); 5783 } 5784 5785 static void 5786 free_mnttab(mhash_t *mhp) 5787 { 5788 mcache_t *mcp; 5789 int i; 5790 5791 for (i = 0; i < MH_HASH_SZ; i++) { 5792 /*LINTED*/ 5793 while (mcp = mhp->mh_hash[i]) { 5794 mhp->mh_hash[i] = mcp->mc_next; 5795 free(mcp->mc_special); 5796 free(mcp->mc_mntpt); 5797 free(mcp->mc_fstype); 5798 free(mcp); 5799 } 5800 } 5801 5802 for (i = 0; i < MH_HASH_SZ; i++) { 5803 assert(mhp->mh_hash[i] == NULL); 5804 } 5805 free(mhp); 5806 } 5807 5808 static mh_search_t 5809 search_hash(mhash_t *mhp, char *special, char **mntpt) 5810 { 5811 int idx; 5812 mcache_t *mcp; 5813 const char *fcn = "search_hash()"; 5814 5815 assert(mntpt); 5816 5817 *mntpt = NULL; 5818 5819 INJECT_ERROR1("SEARCH_HASH_FULL_PATH", special = "/foo"); 5820 if (strchr(special, '/')) { 5821 bam_error(INVALID_MHASH_KEY, special); 5822 return (MH_ERROR); 5823 } 5824 5825 idx = mhash_fcn(special); 5826 5827 for (mcp = mhp->mh_hash[idx]; mcp; mcp = mcp->mc_next) { 5828 if (strcmp(mcp->mc_special, special) == 0) 5829 break; 5830 } 5831 5832 if (mcp == NULL) { 5833 BAM_DPRINTF((D_MNTTAB_HASH_NOMATCH, fcn, special)); 5834 return (MH_NOMATCH); 5835 } 5836 5837 assert(strcmp(mcp->mc_fstype, "ufs") == 0); 5838 *mntpt = mcp->mc_mntpt; 5839 BAM_DPRINTF((D_MNTTAB_HASH_MATCH, fcn, special)); 5840 return (MH_MATCH); 5841 } 5842 5843 static int 5844 check_add_ufs_sign_to_list(FILE *tfp, char *mntpt) 5845 { 5846 char *sign; 5847 char *signline; 5848 char signbuf[MAXNAMELEN]; 5849 int len; 5850 int error; 5851 const char *fcn = "check_add_ufs_sign_to_list()"; 5852 5853 /* safe to specify NULL as "osdev" arg for UFS */ 5854 sign = find_existing_sign(mntpt, NULL, "ufs"); 5855 if (sign == NULL) { 5856 /* No existing signature, nothing to add to list */ 5857 BAM_DPRINTF((D_NO_SIGN_TO_LIST, fcn, mntpt)); 5858 return (0); 5859 } 5860 5861 (void) snprintf(signbuf, sizeof (signbuf), "%s\n", sign); 5862 signline = signbuf; 5863 5864 INJECT_ERROR1("UFS_MNTPT_SIGN_NOTUFS", signline = "pool_rpool10\n"); 5865 if (strncmp(signline, GRUBSIGN_UFS_PREFIX, 5866 strlen(GRUBSIGN_UFS_PREFIX))) { 5867 bam_error(INVALID_UFS_SIGNATURE, sign); 5868 free(sign); 5869 /* ignore invalid signatures */ 5870 return (0); 5871 } 5872 5873 len = fputs(signline, tfp); 5874 error = errno; 5875 INJECT_ERROR1("SIGN_LIST_PUTS_ERROR", len = 0); 5876 if (len != strlen(signline)) { 5877 bam_error(SIGN_LIST_FPUTS_ERR, sign, strerror(error)); 5878 free(sign); 5879 return (-1); 5880 } 5881 5882 free(sign); 5883 5884 BAM_DPRINTF((D_SIGN_LIST_PUTS_DONE, fcn, mntpt)); 5885 return (0); 5886 } 5887 5888 /* 5889 * slice is a basename not a full pathname 5890 */ 5891 static int 5892 process_slice_common(char *slice, FILE *tfp, mhash_t *mhp, char *tmpmnt) 5893 { 5894 int ret; 5895 char cmd[PATH_MAX]; 5896 char path[PATH_MAX]; 5897 struct stat sbuf; 5898 char *mntpt; 5899 filelist_t flist = {0}; 5900 char *fstype; 5901 char blkslice[PATH_MAX]; 5902 const char *fcn = "process_slice_common()"; 5903 5904 5905 ret = search_hash(mhp, slice, &mntpt); 5906 switch (ret) { 5907 case MH_MATCH: 5908 if (check_add_ufs_sign_to_list(tfp, mntpt) == -1) 5909 return (-1); 5910 else 5911 return (0); 5912 case MH_NOMATCH: 5913 break; 5914 case MH_ERROR: 5915 default: 5916 return (-1); 5917 } 5918 5919 (void) snprintf(path, sizeof (path), "/dev/rdsk/%s", slice); 5920 if (stat(path, &sbuf) == -1) { 5921 BAM_DPRINTF((D_SLICE_ENOENT, fcn, path)); 5922 return (0); 5923 } 5924 5925 /* Check if ufs */ 5926 (void) snprintf(cmd, sizeof (cmd), 5927 "/usr/sbin/fstyp /dev/rdsk/%s 2>/dev/null", 5928 slice); 5929 5930 if (exec_cmd(cmd, &flist) != 0) { 5931 if (bam_verbose) 5932 bam_print(FSTYP_FAILED, slice); 5933 return (0); 5934 } 5935 5936 if ((flist.head == NULL) || (flist.head != flist.tail)) { 5937 if (bam_verbose) 5938 bam_print(FSTYP_BAD, slice); 5939 filelist_free(&flist); 5940 return (0); 5941 } 5942 5943 fstype = strtok(flist.head->line, " \t\n"); 5944 if (fstype == NULL || strcmp(fstype, "ufs") != 0) { 5945 if (bam_verbose) 5946 bam_print(NOT_UFS_SLICE, slice, fstype); 5947 filelist_free(&flist); 5948 return (0); 5949 } 5950 5951 filelist_free(&flist); 5952 5953 /* 5954 * Since we are mounting the filesystem read-only, the 5955 * the last mount field of the superblock is unchanged 5956 * and does not need to be fixed up post-mount; 5957 */ 5958 5959 (void) snprintf(blkslice, sizeof (blkslice), "/dev/dsk/%s", 5960 slice); 5961 5962 (void) snprintf(cmd, sizeof (cmd), 5963 "/usr/sbin/mount -F ufs -o ro %s %s " 5964 "> /dev/null 2>&1", blkslice, tmpmnt); 5965 5966 if (exec_cmd(cmd, NULL) != 0) { 5967 if (bam_verbose) 5968 bam_print(MOUNT_FAILED, blkslice, "ufs"); 5969 return (0); 5970 } 5971 5972 ret = check_add_ufs_sign_to_list(tfp, tmpmnt); 5973 5974 (void) snprintf(cmd, sizeof (cmd), 5975 "/usr/sbin/umount -f %s > /dev/null 2>&1", 5976 tmpmnt); 5977 5978 if (exec_cmd(cmd, NULL) != 0) { 5979 bam_print(UMOUNT_FAILED, slice); 5980 return (0); 5981 } 5982 5983 return (ret); 5984 } 5985 5986 static int 5987 process_vtoc_slices( 5988 char *s0, 5989 struct vtoc *vtoc, 5990 FILE *tfp, 5991 mhash_t *mhp, 5992 char *tmpmnt) 5993 { 5994 int idx; 5995 char slice[PATH_MAX]; 5996 size_t len; 5997 char *cp; 5998 const char *fcn = "process_vtoc_slices()"; 5999 6000 len = strlen(s0); 6001 6002 assert(s0[len - 2] == 's' && s0[len - 1] == '0'); 6003 6004 s0[len - 1] = '\0'; 6005 6006 (void) strlcpy(slice, s0, sizeof (slice)); 6007 6008 s0[len - 1] = '0'; 6009 6010 cp = slice + len - 1; 6011 6012 for (idx = 0; idx < vtoc->v_nparts; idx++) { 6013 6014 (void) snprintf(cp, sizeof (slice) - (len - 1), "%u", idx); 6015 6016 if (vtoc->v_part[idx].p_size == 0) { 6017 BAM_DPRINTF((D_VTOC_SIZE_ZERO, fcn, slice)); 6018 continue; 6019 } 6020 6021 /* Skip "SWAP", "USR", "BACKUP", "VAR", "HOME", "ALTSCTR" */ 6022 switch (vtoc->v_part[idx].p_tag) { 6023 case V_SWAP: 6024 case V_USR: 6025 case V_BACKUP: 6026 case V_VAR: 6027 case V_HOME: 6028 case V_ALTSCTR: 6029 BAM_DPRINTF((D_VTOC_NOT_ROOT_TAG, fcn, slice)); 6030 continue; 6031 default: 6032 BAM_DPRINTF((D_VTOC_ROOT_TAG, fcn, slice)); 6033 break; 6034 } 6035 6036 /* skip unmountable and readonly slices */ 6037 switch (vtoc->v_part[idx].p_flag) { 6038 case V_UNMNT: 6039 case V_RONLY: 6040 BAM_DPRINTF((D_VTOC_NOT_RDWR_FLAG, fcn, slice)); 6041 continue; 6042 default: 6043 BAM_DPRINTF((D_VTOC_RDWR_FLAG, fcn, slice)); 6044 break; 6045 } 6046 6047 if (process_slice_common(slice, tfp, mhp, tmpmnt) == -1) { 6048 return (-1); 6049 } 6050 } 6051 6052 return (0); 6053 } 6054 6055 static int 6056 process_efi_slices( 6057 char *s0, 6058 struct dk_gpt *efi, 6059 FILE *tfp, 6060 mhash_t *mhp, 6061 char *tmpmnt) 6062 { 6063 int idx; 6064 char slice[PATH_MAX]; 6065 size_t len; 6066 char *cp; 6067 const char *fcn = "process_efi_slices()"; 6068 6069 len = strlen(s0); 6070 6071 assert(s0[len - 2] == 's' && s0[len - 1] == '0'); 6072 6073 s0[len - 1] = '\0'; 6074 6075 (void) strlcpy(slice, s0, sizeof (slice)); 6076 6077 s0[len - 1] = '0'; 6078 6079 cp = slice + len - 1; 6080 6081 for (idx = 0; idx < efi->efi_nparts; idx++) { 6082 6083 (void) snprintf(cp, sizeof (slice) - (len - 1), "%u", idx); 6084 6085 if (efi->efi_parts[idx].p_size == 0) { 6086 BAM_DPRINTF((D_EFI_SIZE_ZERO, fcn, slice)); 6087 continue; 6088 } 6089 6090 /* Skip "SWAP", "USR", "BACKUP", "VAR", "HOME", "ALTSCTR" */ 6091 switch (efi->efi_parts[idx].p_tag) { 6092 case V_SWAP: 6093 case V_USR: 6094 case V_BACKUP: 6095 case V_VAR: 6096 case V_HOME: 6097 case V_ALTSCTR: 6098 BAM_DPRINTF((D_EFI_NOT_ROOT_TAG, fcn, slice)); 6099 continue; 6100 default: 6101 BAM_DPRINTF((D_EFI_ROOT_TAG, fcn, slice)); 6102 break; 6103 } 6104 6105 /* skip unmountable and readonly slices */ 6106 switch (efi->efi_parts[idx].p_flag) { 6107 case V_UNMNT: 6108 case V_RONLY: 6109 BAM_DPRINTF((D_EFI_NOT_RDWR_FLAG, fcn, slice)); 6110 continue; 6111 default: 6112 BAM_DPRINTF((D_EFI_RDWR_FLAG, fcn, slice)); 6113 break; 6114 } 6115 6116 if (process_slice_common(slice, tfp, mhp, tmpmnt) == -1) { 6117 return (-1); 6118 } 6119 } 6120 6121 return (0); 6122 } 6123 6124 /* 6125 * s0 is a basename not a full path 6126 */ 6127 static int 6128 process_slice0(char *s0, FILE *tfp, mhash_t *mhp, char *tmpmnt) 6129 { 6130 struct vtoc vtoc; 6131 struct dk_gpt *efi; 6132 char s0path[PATH_MAX]; 6133 struct stat sbuf; 6134 int e_flag; 6135 int v_flag; 6136 int retval; 6137 int err; 6138 int fd; 6139 const char *fcn = "process_slice0()"; 6140 6141 (void) snprintf(s0path, sizeof (s0path), "/dev/rdsk/%s", s0); 6142 6143 if (stat(s0path, &sbuf) == -1) { 6144 BAM_DPRINTF((D_SLICE0_ENOENT, fcn, s0path)); 6145 return (0); 6146 } 6147 6148 fd = open(s0path, O_NONBLOCK|O_RDONLY); 6149 if (fd == -1) { 6150 bam_error(OPEN_FAIL, s0path, strerror(errno)); 6151 return (0); 6152 } 6153 6154 e_flag = v_flag = 0; 6155 retval = ((err = read_vtoc(fd, &vtoc)) >= 0) ? 0 : err; 6156 switch (retval) { 6157 case VT_EIO: 6158 BAM_DPRINTF((D_VTOC_READ_FAIL, fcn, s0path)); 6159 break; 6160 case VT_EINVAL: 6161 BAM_DPRINTF((D_VTOC_INVALID, fcn, s0path)); 6162 break; 6163 case VT_ERROR: 6164 BAM_DPRINTF((D_VTOC_UNKNOWN_ERR, fcn, s0path)); 6165 break; 6166 case VT_ENOTSUP: 6167 e_flag = 1; 6168 BAM_DPRINTF((D_VTOC_NOTSUP, fcn, s0path)); 6169 break; 6170 case 0: 6171 v_flag = 1; 6172 BAM_DPRINTF((D_VTOC_READ_SUCCESS, fcn, s0path)); 6173 break; 6174 default: 6175 BAM_DPRINTF((D_VTOC_UNKNOWN_RETCODE, fcn, s0path)); 6176 break; 6177 } 6178 6179 6180 if (e_flag) { 6181 e_flag = 0; 6182 retval = ((err = efi_alloc_and_read(fd, &efi)) >= 0) ? 0 : err; 6183 switch (retval) { 6184 case VT_EIO: 6185 BAM_DPRINTF((D_EFI_READ_FAIL, fcn, s0path)); 6186 break; 6187 case VT_EINVAL: 6188 BAM_DPRINTF((D_EFI_INVALID, fcn, s0path)); 6189 break; 6190 case VT_ERROR: 6191 BAM_DPRINTF((D_EFI_UNKNOWN_ERR, fcn, s0path)); 6192 break; 6193 case VT_ENOTSUP: 6194 BAM_DPRINTF((D_EFI_NOTSUP, fcn, s0path)); 6195 break; 6196 case 0: 6197 e_flag = 1; 6198 BAM_DPRINTF((D_EFI_READ_SUCCESS, fcn, s0path)); 6199 break; 6200 default: 6201 BAM_DPRINTF((D_EFI_UNKNOWN_RETCODE, fcn, s0path)); 6202 break; 6203 } 6204 } 6205 6206 (void) close(fd); 6207 6208 if (v_flag) { 6209 retval = process_vtoc_slices(s0, 6210 &vtoc, tfp, mhp, tmpmnt); 6211 } else if (e_flag) { 6212 retval = process_efi_slices(s0, 6213 efi, tfp, mhp, tmpmnt); 6214 } else { 6215 BAM_DPRINTF((D_NOT_VTOC_OR_EFI, fcn, s0path)); 6216 return (0); 6217 } 6218 6219 return (retval); 6220 } 6221 6222 /* 6223 * Find and create a list of all existing UFS boot signatures 6224 */ 6225 static int 6226 FindAllUfsSignatures(void) 6227 { 6228 mhash_t *mnttab_hash; 6229 DIR *dirp = NULL; 6230 struct dirent *dp; 6231 char tmpmnt[PATH_MAX]; 6232 char cmd[PATH_MAX]; 6233 struct stat sb; 6234 int fd; 6235 FILE *tfp; 6236 size_t len; 6237 int ret; 6238 int error; 6239 const char *fcn = "FindAllUfsSignatures()"; 6240 6241 if (stat(UFS_SIGNATURE_LIST, &sb) != -1) { 6242 bam_print(SIGNATURE_LIST_EXISTS, UFS_SIGNATURE_LIST); 6243 return (0); 6244 } 6245 6246 fd = open(UFS_SIGNATURE_LIST".tmp", 6247 O_RDWR|O_CREAT|O_TRUNC, 0644); 6248 error = errno; 6249 INJECT_ERROR1("SIGN_LIST_TMP_TRUNC", fd = -1); 6250 if (fd == -1) { 6251 bam_error(OPEN_FAIL, UFS_SIGNATURE_LIST".tmp", strerror(error)); 6252 return (-1); 6253 } 6254 6255 ret = close(fd); 6256 error = errno; 6257 INJECT_ERROR1("SIGN_LIST_TMP_CLOSE", ret = -1); 6258 if (ret == -1) { 6259 bam_error(CLOSE_FAIL, UFS_SIGNATURE_LIST".tmp", 6260 strerror(error)); 6261 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6262 return (-1); 6263 } 6264 6265 tfp = fopen(UFS_SIGNATURE_LIST".tmp", "a"); 6266 error = errno; 6267 INJECT_ERROR1("SIGN_LIST_APPEND_FOPEN", tfp = NULL); 6268 if (tfp == NULL) { 6269 bam_error(OPEN_FAIL, UFS_SIGNATURE_LIST".tmp", strerror(error)); 6270 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6271 return (-1); 6272 } 6273 6274 mnttab_hash = cache_mnttab(); 6275 INJECT_ERROR1("CACHE_MNTTAB_ERROR", mnttab_hash = NULL); 6276 if (mnttab_hash == NULL) { 6277 (void) fclose(tfp); 6278 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6279 bam_error(CACHE_MNTTAB_FAIL, fcn); 6280 return (-1); 6281 } 6282 6283 (void) snprintf(tmpmnt, sizeof (tmpmnt), 6284 "/tmp/bootadm_ufs_sign_mnt.%d", getpid()); 6285 (void) unlink(tmpmnt); 6286 6287 ret = mkdirp(tmpmnt, DIR_PERMS); 6288 error = errno; 6289 INJECT_ERROR1("MKDIRP_SIGN_MNT", ret = -1); 6290 if (ret == -1) { 6291 bam_error(MKDIR_FAILED, tmpmnt, strerror(error)); 6292 free_mnttab(mnttab_hash); 6293 (void) fclose(tfp); 6294 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6295 return (-1); 6296 } 6297 6298 dirp = opendir("/dev/rdsk"); 6299 error = errno; 6300 INJECT_ERROR1("OPENDIR_DEV_RDSK", dirp = NULL); 6301 if (dirp == NULL) { 6302 bam_error(OPENDIR_FAILED, "/dev/rdsk", strerror(error)); 6303 goto fail; 6304 } 6305 6306 while (dp = readdir(dirp)) { 6307 if (strcmp(dp->d_name, ".") == 0 || 6308 strcmp(dp->d_name, "..") == 0) 6309 continue; 6310 6311 /* 6312 * we only look for the s0 slice. This is guranteed to 6313 * have 's' at len - 2. 6314 */ 6315 len = strlen(dp->d_name); 6316 if (dp->d_name[len - 2 ] != 's' || dp->d_name[len - 1] != '0') { 6317 BAM_DPRINTF((D_SKIP_SLICE_NOTZERO, fcn, dp->d_name)); 6318 continue; 6319 } 6320 6321 ret = process_slice0(dp->d_name, tfp, mnttab_hash, tmpmnt); 6322 INJECT_ERROR1("PROCESS_S0_FAIL", ret = -1); 6323 if (ret == -1) 6324 goto fail; 6325 } 6326 6327 (void) closedir(dirp); 6328 free_mnttab(mnttab_hash); 6329 (void) rmdir(tmpmnt); 6330 6331 ret = fclose(tfp); 6332 error = errno; 6333 INJECT_ERROR1("FCLOSE_SIGNLIST_TMP", ret = EOF); 6334 if (ret == EOF) { 6335 bam_error(CLOSE_FAIL, UFS_SIGNATURE_LIST".tmp", 6336 strerror(error)); 6337 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6338 return (-1); 6339 } 6340 6341 /* We have a list of existing GRUB signatures. Sort it first */ 6342 (void) snprintf(cmd, sizeof (cmd), 6343 "/usr/bin/sort -u %s.tmp > %s.sorted", 6344 UFS_SIGNATURE_LIST, UFS_SIGNATURE_LIST); 6345 6346 ret = exec_cmd(cmd, NULL); 6347 INJECT_ERROR1("SORT_SIGN_LIST", ret = 1); 6348 if (ret != 0) { 6349 bam_error(GRUBSIGN_SORT_FAILED); 6350 (void) unlink(UFS_SIGNATURE_LIST".sorted"); 6351 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6352 return (-1); 6353 } 6354 6355 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6356 6357 ret = rename(UFS_SIGNATURE_LIST".sorted", UFS_SIGNATURE_LIST); 6358 error = errno; 6359 INJECT_ERROR1("RENAME_TMP_SIGNLIST", ret = -1); 6360 if (ret == -1) { 6361 bam_error(RENAME_FAIL, UFS_SIGNATURE_LIST, strerror(error)); 6362 (void) unlink(UFS_SIGNATURE_LIST".sorted"); 6363 return (-1); 6364 } 6365 6366 if (stat(UFS_SIGNATURE_LIST, &sb) == 0 && sb.st_size == 0) { 6367 BAM_DPRINTF((D_ZERO_LEN_SIGNLIST, fcn, UFS_SIGNATURE_LIST)); 6368 } 6369 6370 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6371 return (0); 6372 6373 fail: 6374 if (dirp) 6375 (void) closedir(dirp); 6376 free_mnttab(mnttab_hash); 6377 (void) rmdir(tmpmnt); 6378 (void) fclose(tfp); 6379 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6380 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 6381 return (-1); 6382 } 6383 6384 static char * 6385 create_ufs_sign(void) 6386 { 6387 struct stat sb; 6388 int signnum = -1; 6389 char tmpsign[MAXNAMELEN + 1]; 6390 char *numstr; 6391 int i; 6392 FILE *tfp; 6393 int ret; 6394 int error; 6395 const char *fcn = "create_ufs_sign()"; 6396 6397 bam_print(SEARCHING_UFS_SIGN); 6398 6399 ret = FindAllUfsSignatures(); 6400 INJECT_ERROR1("FIND_ALL_UFS", ret = -1); 6401 if (ret == -1) { 6402 bam_error(ERR_FIND_UFS_SIGN); 6403 return (NULL); 6404 } 6405 6406 /* Make sure the list exists and is owned by root */ 6407 INJECT_ERROR1("SIGNLIST_NOT_CREATED", 6408 (void) unlink(UFS_SIGNATURE_LIST)); 6409 if (stat(UFS_SIGNATURE_LIST, &sb) == -1 || sb.st_uid != 0) { 6410 (void) unlink(UFS_SIGNATURE_LIST); 6411 bam_error(UFS_SIGNATURE_LIST_MISS, UFS_SIGNATURE_LIST); 6412 return (NULL); 6413 } 6414 6415 if (sb.st_size == 0) { 6416 bam_print(GRUBSIGN_UFS_NONE); 6417 i = 0; 6418 goto found; 6419 } 6420 6421 /* The signature list was sorted when it was created */ 6422 tfp = fopen(UFS_SIGNATURE_LIST, "r"); 6423 error = errno; 6424 INJECT_ERROR1("FOPEN_SIGN_LIST", tfp = NULL); 6425 if (tfp == NULL) { 6426 bam_error(UFS_SIGNATURE_LIST_OPENERR, 6427 UFS_SIGNATURE_LIST, strerror(error)); 6428 (void) unlink(UFS_SIGNATURE_LIST); 6429 return (NULL); 6430 } 6431 6432 for (i = 0; s_fgets(tmpsign, sizeof (tmpsign), tfp); i++) { 6433 6434 if (strncmp(tmpsign, GRUBSIGN_UFS_PREFIX, 6435 strlen(GRUBSIGN_UFS_PREFIX)) != 0) { 6436 (void) fclose(tfp); 6437 (void) unlink(UFS_SIGNATURE_LIST); 6438 bam_error(UFS_BADSIGN, tmpsign); 6439 return (NULL); 6440 } 6441 numstr = tmpsign + strlen(GRUBSIGN_UFS_PREFIX); 6442 6443 if (numstr[0] == '\0' || !isdigit(numstr[0])) { 6444 (void) fclose(tfp); 6445 (void) unlink(UFS_SIGNATURE_LIST); 6446 bam_error(UFS_BADSIGN, tmpsign); 6447 return (NULL); 6448 } 6449 6450 signnum = atoi(numstr); 6451 INJECT_ERROR1("NEGATIVE_SIGN", signnum = -1); 6452 if (signnum < 0) { 6453 (void) fclose(tfp); 6454 (void) unlink(UFS_SIGNATURE_LIST); 6455 bam_error(UFS_BADSIGN, tmpsign); 6456 return (NULL); 6457 } 6458 6459 if (i != signnum) { 6460 BAM_DPRINTF((D_FOUND_HOLE_SIGNLIST, fcn, i)); 6461 break; 6462 } 6463 } 6464 6465 (void) fclose(tfp); 6466 6467 found: 6468 (void) snprintf(tmpsign, sizeof (tmpsign), "rootfs%d", i); 6469 6470 /* add the ufs signature to the /var/run list of signatures */ 6471 ret = ufs_add_to_sign_list(tmpsign); 6472 INJECT_ERROR1("UFS_ADD_TO_SIGN_LIST", ret = -1); 6473 if (ret == -1) { 6474 (void) unlink(UFS_SIGNATURE_LIST); 6475 bam_error(FAILED_ADD_SIGNLIST, tmpsign); 6476 return (NULL); 6477 } 6478 6479 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6480 6481 return (s_strdup(tmpsign)); 6482 } 6483 6484 static char * 6485 get_fstype(char *osroot) 6486 { 6487 FILE *mntfp; 6488 struct mnttab mp = {0}; 6489 struct mnttab mpref = {0}; 6490 int error; 6491 int ret; 6492 const char *fcn = "get_fstype()"; 6493 6494 INJECT_ERROR1("GET_FSTYPE_OSROOT", osroot = NULL); 6495 if (osroot == NULL) { 6496 bam_error(GET_FSTYPE_ARGS); 6497 return (NULL); 6498 } 6499 6500 mntfp = fopen(MNTTAB, "r"); 6501 error = errno; 6502 INJECT_ERROR1("GET_FSTYPE_FOPEN", mntfp = NULL); 6503 if (mntfp == NULL) { 6504 bam_error(OPEN_FAIL, MNTTAB, strerror(error)); 6505 return (NULL); 6506 } 6507 6508 if (*osroot == '\0') 6509 mpref.mnt_mountp = "/"; 6510 else 6511 mpref.mnt_mountp = osroot; 6512 6513 ret = getmntany(mntfp, &mp, &mpref); 6514 INJECT_ERROR1("GET_FSTYPE_GETMNTANY", ret = 1); 6515 if (ret != 0) { 6516 bam_error(MNTTAB_MNTPT_NOT_FOUND, osroot, MNTTAB); 6517 (void) fclose(mntfp); 6518 return (NULL); 6519 } 6520 (void) fclose(mntfp); 6521 6522 INJECT_ERROR1("GET_FSTYPE_NULL", mp.mnt_fstype = NULL); 6523 if (mp.mnt_fstype == NULL) { 6524 bam_error(MNTTAB_FSTYPE_NULL, osroot); 6525 return (NULL); 6526 } 6527 6528 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6529 6530 return (s_strdup(mp.mnt_fstype)); 6531 } 6532 6533 static char * 6534 create_zfs_sign(char *osdev) 6535 { 6536 char tmpsign[PATH_MAX]; 6537 char *pool; 6538 const char *fcn = "create_zfs_sign()"; 6539 6540 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, osdev)); 6541 6542 /* 6543 * First find the pool name 6544 */ 6545 pool = get_pool(osdev); 6546 INJECT_ERROR1("CREATE_ZFS_SIGN_GET_POOL", pool = NULL); 6547 if (pool == NULL) { 6548 bam_error(GET_POOL_FAILED, osdev); 6549 return (NULL); 6550 } 6551 6552 (void) snprintf(tmpsign, sizeof (tmpsign), "pool_%s", pool); 6553 6554 BAM_DPRINTF((D_CREATED_ZFS_SIGN, fcn, tmpsign)); 6555 6556 free(pool); 6557 6558 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6559 6560 return (s_strdup(tmpsign)); 6561 } 6562 6563 static char * 6564 create_new_sign(char *osdev, char *fstype) 6565 { 6566 char *sign; 6567 const char *fcn = "create_new_sign()"; 6568 6569 INJECT_ERROR1("NEW_SIGN_FSTYPE", fstype = "foofs"); 6570 6571 if (strcmp(fstype, "zfs") == 0) { 6572 BAM_DPRINTF((D_CREATE_NEW_ZFS, fcn)); 6573 sign = create_zfs_sign(osdev); 6574 } else if (strcmp(fstype, "ufs") == 0) { 6575 BAM_DPRINTF((D_CREATE_NEW_UFS, fcn)); 6576 sign = create_ufs_sign(); 6577 } else { 6578 bam_error(GRUBSIGN_NOTSUP, fstype); 6579 sign = NULL; 6580 } 6581 6582 BAM_DPRINTF((D_CREATED_NEW_SIGN, fcn, sign ? sign : "<NULL>")); 6583 return (sign); 6584 } 6585 6586 static int 6587 set_backup_common(char *mntpt, char *sign) 6588 { 6589 FILE *bfp; 6590 char backup[PATH_MAX]; 6591 char tmpsign[PATH_MAX]; 6592 int error; 6593 char *bdir; 6594 char *backup_dup; 6595 struct stat sb; 6596 int ret; 6597 const char *fcn = "set_backup_common()"; 6598 6599 (void) snprintf(backup, sizeof (backup), "%s%s", 6600 mntpt, GRUBSIGN_BACKUP); 6601 6602 /* First read the backup */ 6603 bfp = fopen(backup, "r"); 6604 if (bfp != NULL) { 6605 while (s_fgets(tmpsign, sizeof (tmpsign), bfp)) { 6606 if (strcmp(tmpsign, sign) == 0) { 6607 BAM_DPRINTF((D_FOUND_IN_BACKUP, fcn, sign)); 6608 (void) fclose(bfp); 6609 return (0); 6610 } 6611 } 6612 (void) fclose(bfp); 6613 BAM_DPRINTF((D_NOT_FOUND_IN_EXIST_BACKUP, fcn, sign)); 6614 } else { 6615 BAM_DPRINTF((D_BACKUP_NOT_EXIST, fcn, backup)); 6616 } 6617 6618 /* 6619 * Didn't find the correct signature. First create 6620 * the directory if necessary. 6621 */ 6622 6623 /* dirname() modifies its argument so dup it */ 6624 backup_dup = s_strdup(backup); 6625 bdir = dirname(backup_dup); 6626 assert(bdir); 6627 6628 ret = stat(bdir, &sb); 6629 INJECT_ERROR1("SET_BACKUP_STAT", ret = -1); 6630 if (ret == -1) { 6631 BAM_DPRINTF((D_BACKUP_DIR_NOEXIST, fcn, bdir)); 6632 ret = mkdirp(bdir, DIR_PERMS); 6633 error = errno; 6634 INJECT_ERROR1("SET_BACKUP_MKDIRP", ret = -1); 6635 if (ret == -1) { 6636 bam_error(GRUBSIGN_BACKUP_MKDIRERR, 6637 GRUBSIGN_BACKUP, strerror(error)); 6638 free(backup_dup); 6639 return (-1); 6640 } 6641 } 6642 free(backup_dup); 6643 6644 /* 6645 * Open the backup in append mode to add the correct 6646 * signature; 6647 */ 6648 bfp = fopen(backup, "a"); 6649 error = errno; 6650 INJECT_ERROR1("SET_BACKUP_FOPEN_A", bfp = NULL); 6651 if (bfp == NULL) { 6652 bam_error(GRUBSIGN_BACKUP_OPENERR, 6653 GRUBSIGN_BACKUP, strerror(error)); 6654 return (-1); 6655 } 6656 6657 (void) snprintf(tmpsign, sizeof (tmpsign), "%s\n", sign); 6658 6659 ret = fputs(tmpsign, bfp); 6660 error = errno; 6661 INJECT_ERROR1("SET_BACKUP_FPUTS", ret = 0); 6662 if (ret != strlen(tmpsign)) { 6663 bam_error(GRUBSIGN_BACKUP_WRITEERR, 6664 GRUBSIGN_BACKUP, strerror(error)); 6665 (void) fclose(bfp); 6666 return (-1); 6667 } 6668 6669 (void) fclose(bfp); 6670 6671 if (bam_verbose) 6672 bam_print(GRUBSIGN_BACKUP_UPDATED, GRUBSIGN_BACKUP); 6673 6674 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6675 6676 return (0); 6677 } 6678 6679 static int 6680 set_backup_ufs(char *osroot, char *sign) 6681 { 6682 const char *fcn = "set_backup_ufs()"; 6683 6684 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, osroot, sign)); 6685 return (set_backup_common(osroot, sign)); 6686 } 6687 6688 static int 6689 set_backup_zfs(char *osdev, char *sign) 6690 { 6691 char *pool; 6692 char *mntpt; 6693 zfs_mnted_t mnted; 6694 int ret; 6695 const char *fcn = "set_backup_zfs()"; 6696 6697 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, osdev, sign)); 6698 6699 pool = get_pool(osdev); 6700 INJECT_ERROR1("SET_BACKUP_GET_POOL", pool = NULL); 6701 if (pool == NULL) { 6702 bam_error(GET_POOL_FAILED, osdev); 6703 return (-1); 6704 } 6705 6706 mntpt = mount_top_dataset(pool, &mnted); 6707 INJECT_ERROR1("SET_BACKUP_MOUNT_DATASET", mntpt = NULL); 6708 if (mntpt == NULL) { 6709 bam_error(FAIL_MNT_TOP_DATASET, pool); 6710 free(pool); 6711 return (-1); 6712 } 6713 6714 ret = set_backup_common(mntpt, sign); 6715 6716 (void) umount_top_dataset(pool, mnted, mntpt); 6717 6718 free(pool); 6719 6720 INJECT_ERROR1("SET_BACKUP_ZFS_FAIL", ret = 1); 6721 if (ret == 0) { 6722 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6723 } else { 6724 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 6725 } 6726 6727 return (ret); 6728 } 6729 6730 static int 6731 set_backup(char *osroot, char *osdev, char *sign, char *fstype) 6732 { 6733 const char *fcn = "set_backup()"; 6734 int ret; 6735 6736 INJECT_ERROR1("SET_BACKUP_FSTYPE", fstype = "foofs"); 6737 6738 if (strcmp(fstype, "ufs") == 0) { 6739 BAM_DPRINTF((D_SET_BACKUP_UFS, fcn)); 6740 ret = set_backup_ufs(osroot, sign); 6741 } else if (strcmp(fstype, "zfs") == 0) { 6742 BAM_DPRINTF((D_SET_BACKUP_ZFS, fcn)); 6743 ret = set_backup_zfs(osdev, sign); 6744 } else { 6745 bam_error(GRUBSIGN_NOTSUP, fstype); 6746 ret = -1; 6747 } 6748 6749 if (ret == 0) { 6750 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6751 } else { 6752 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 6753 } 6754 6755 return (ret); 6756 } 6757 6758 static int 6759 set_primary_common(char *mntpt, char *sign) 6760 { 6761 char signfile[PATH_MAX]; 6762 char signdir[PATH_MAX]; 6763 struct stat sb; 6764 int fd; 6765 int error; 6766 int ret; 6767 const char *fcn = "set_primary_common()"; 6768 6769 (void) snprintf(signfile, sizeof (signfile), "%s/%s/%s", 6770 mntpt, GRUBSIGN_DIR, sign); 6771 6772 if (stat(signfile, &sb) != -1) { 6773 if (bam_verbose) 6774 bam_print(PRIMARY_SIGN_EXISTS, sign); 6775 return (0); 6776 } else { 6777 BAM_DPRINTF((D_PRIMARY_NOT_EXIST, fcn, signfile)); 6778 } 6779 6780 (void) snprintf(signdir, sizeof (signdir), "%s/%s", 6781 mntpt, GRUBSIGN_DIR); 6782 6783 if (stat(signdir, &sb) == -1) { 6784 BAM_DPRINTF((D_PRIMARY_DIR_NOEXIST, fcn, signdir)); 6785 ret = mkdirp(signdir, DIR_PERMS); 6786 error = errno; 6787 INJECT_ERROR1("SET_PRIMARY_MKDIRP", ret = -1); 6788 if (ret == -1) { 6789 bam_error(GRUBSIGN_MKDIR_ERR, signdir, strerror(errno)); 6790 return (-1); 6791 } 6792 } 6793 6794 fd = open(signfile, O_RDWR|O_CREAT|O_TRUNC, 0444); 6795 error = errno; 6796 INJECT_ERROR1("PRIMARY_SIGN_CREAT", fd = -1); 6797 if (fd == -1) { 6798 bam_error(GRUBSIGN_PRIMARY_CREATERR, signfile, strerror(error)); 6799 return (-1); 6800 } 6801 6802 ret = fsync(fd); 6803 error = errno; 6804 INJECT_ERROR1("PRIMARY_FSYNC", ret = -1); 6805 if (ret != 0) { 6806 bam_error(GRUBSIGN_PRIMARY_SYNCERR, signfile, strerror(error)); 6807 } 6808 6809 (void) close(fd); 6810 6811 if (bam_verbose) 6812 bam_print(GRUBSIGN_CREATED_PRIMARY, signfile); 6813 6814 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6815 6816 return (0); 6817 } 6818 6819 static int 6820 set_primary_ufs(char *osroot, char *sign) 6821 { 6822 const char *fcn = "set_primary_ufs()"; 6823 6824 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, osroot, sign)); 6825 return (set_primary_common(osroot, sign)); 6826 } 6827 6828 static int 6829 set_primary_zfs(char *osdev, char *sign) 6830 { 6831 char *pool; 6832 char *mntpt; 6833 zfs_mnted_t mnted; 6834 int ret; 6835 const char *fcn = "set_primary_zfs()"; 6836 6837 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, osdev, sign)); 6838 6839 pool = get_pool(osdev); 6840 INJECT_ERROR1("SET_PRIMARY_ZFS_GET_POOL", pool = NULL); 6841 if (pool == NULL) { 6842 bam_error(GET_POOL_FAILED, osdev); 6843 return (-1); 6844 } 6845 6846 /* Pool name must exist in the sign */ 6847 ret = (strstr(sign, pool) != NULL); 6848 INJECT_ERROR1("SET_PRIMARY_ZFS_POOL_SIGN_INCOMPAT", ret = 0); 6849 if (ret == 0) { 6850 bam_error(POOL_SIGN_INCOMPAT, pool, sign); 6851 free(pool); 6852 return (-1); 6853 } 6854 6855 mntpt = mount_top_dataset(pool, &mnted); 6856 INJECT_ERROR1("SET_PRIMARY_ZFS_MOUNT_DATASET", mntpt = NULL); 6857 if (mntpt == NULL) { 6858 bam_error(FAIL_MNT_TOP_DATASET, pool); 6859 free(pool); 6860 return (-1); 6861 } 6862 6863 ret = set_primary_common(mntpt, sign); 6864 6865 (void) umount_top_dataset(pool, mnted, mntpt); 6866 6867 free(pool); 6868 6869 INJECT_ERROR1("SET_PRIMARY_ZFS_FAIL", ret = 1); 6870 if (ret == 0) { 6871 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6872 } else { 6873 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 6874 } 6875 6876 return (ret); 6877 } 6878 6879 static int 6880 set_primary(char *osroot, char *osdev, char *sign, char *fstype) 6881 { 6882 const char *fcn = "set_primary()"; 6883 int ret; 6884 6885 INJECT_ERROR1("SET_PRIMARY_FSTYPE", fstype = "foofs"); 6886 if (strcmp(fstype, "ufs") == 0) { 6887 BAM_DPRINTF((D_SET_PRIMARY_UFS, fcn)); 6888 ret = set_primary_ufs(osroot, sign); 6889 } else if (strcmp(fstype, "zfs") == 0) { 6890 BAM_DPRINTF((D_SET_PRIMARY_ZFS, fcn)); 6891 ret = set_primary_zfs(osdev, sign); 6892 } else { 6893 bam_error(GRUBSIGN_NOTSUP, fstype); 6894 ret = -1; 6895 } 6896 6897 if (ret == 0) { 6898 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6899 } else { 6900 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 6901 } 6902 6903 return (ret); 6904 } 6905 6906 static int 6907 ufs_add_to_sign_list(char *sign) 6908 { 6909 FILE *tfp; 6910 char signline[MAXNAMELEN]; 6911 char cmd[PATH_MAX]; 6912 int ret; 6913 int error; 6914 const char *fcn = "ufs_add_to_sign_list()"; 6915 6916 INJECT_ERROR1("ADD_TO_SIGN_LIST_NOT_UFS", sign = "pool_rpool5"); 6917 if (strncmp(sign, GRUBSIGN_UFS_PREFIX, 6918 strlen(GRUBSIGN_UFS_PREFIX)) != 0) { 6919 bam_error(INVALID_UFS_SIGN, sign); 6920 (void) unlink(UFS_SIGNATURE_LIST); 6921 return (-1); 6922 } 6923 6924 /* 6925 * most failures in this routine are not a fatal error 6926 * We simply unlink the /var/run file and continue 6927 */ 6928 6929 ret = rename(UFS_SIGNATURE_LIST, UFS_SIGNATURE_LIST".tmp"); 6930 error = errno; 6931 INJECT_ERROR1("ADD_TO_SIGN_LIST_RENAME", ret = -1); 6932 if (ret == -1) { 6933 bam_error(RENAME_FAIL, UFS_SIGNATURE_LIST".tmp", 6934 strerror(error)); 6935 (void) unlink(UFS_SIGNATURE_LIST); 6936 return (0); 6937 } 6938 6939 tfp = fopen(UFS_SIGNATURE_LIST".tmp", "a"); 6940 error = errno; 6941 INJECT_ERROR1("ADD_TO_SIGN_LIST_FOPEN", tfp = NULL); 6942 if (tfp == NULL) { 6943 bam_error(OPEN_FAIL, UFS_SIGNATURE_LIST".tmp", strerror(error)); 6944 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6945 return (0); 6946 } 6947 6948 (void) snprintf(signline, sizeof (signline), "%s\n", sign); 6949 6950 ret = fputs(signline, tfp); 6951 error = errno; 6952 INJECT_ERROR1("ADD_TO_SIGN_LIST_FPUTS", ret = 0); 6953 if (ret != strlen(signline)) { 6954 bam_error(SIGN_LIST_FPUTS_ERR, sign, strerror(error)); 6955 (void) fclose(tfp); 6956 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6957 return (0); 6958 } 6959 6960 ret = fclose(tfp); 6961 error = errno; 6962 INJECT_ERROR1("ADD_TO_SIGN_LIST_FCLOSE", ret = EOF); 6963 if (ret == EOF) { 6964 bam_error(CLOSE_FAIL, UFS_SIGNATURE_LIST".tmp", 6965 strerror(error)); 6966 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6967 return (0); 6968 } 6969 6970 /* Sort the list again */ 6971 (void) snprintf(cmd, sizeof (cmd), 6972 "/usr/bin/sort -u %s.tmp > %s.sorted", 6973 UFS_SIGNATURE_LIST, UFS_SIGNATURE_LIST); 6974 6975 ret = exec_cmd(cmd, NULL); 6976 INJECT_ERROR1("ADD_TO_SIGN_LIST_SORT", ret = 1); 6977 if (ret != 0) { 6978 bam_error(GRUBSIGN_SORT_FAILED); 6979 (void) unlink(UFS_SIGNATURE_LIST".sorted"); 6980 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6981 return (0); 6982 } 6983 6984 (void) unlink(UFS_SIGNATURE_LIST".tmp"); 6985 6986 ret = rename(UFS_SIGNATURE_LIST".sorted", UFS_SIGNATURE_LIST); 6987 error = errno; 6988 INJECT_ERROR1("ADD_TO_SIGN_LIST_RENAME2", ret = -1); 6989 if (ret == -1) { 6990 bam_error(RENAME_FAIL, UFS_SIGNATURE_LIST, strerror(error)); 6991 (void) unlink(UFS_SIGNATURE_LIST".sorted"); 6992 return (0); 6993 } 6994 6995 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 6996 6997 return (0); 6998 } 6999 7000 static int 7001 set_signature(char *osroot, char *osdev, char *sign, char *fstype) 7002 { 7003 int ret; 7004 const char *fcn = "set_signature()"; 7005 7006 BAM_DPRINTF((D_FUNC_ENTRY4, fcn, osroot, osdev, sign, fstype)); 7007 7008 ret = set_backup(osroot, osdev, sign, fstype); 7009 INJECT_ERROR1("SET_SIGNATURE_BACKUP", ret = -1); 7010 if (ret == -1) { 7011 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 7012 bam_error(SET_BACKUP_FAILED, sign, osroot, osdev); 7013 return (-1); 7014 } 7015 7016 ret = set_primary(osroot, osdev, sign, fstype); 7017 INJECT_ERROR1("SET_SIGNATURE_PRIMARY", ret = -1); 7018 7019 if (ret == 0) { 7020 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 7021 } else { 7022 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 7023 bam_error(SET_PRIMARY_FAILED, sign, osroot, osdev); 7024 7025 } 7026 return (ret); 7027 } 7028 7029 char * 7030 get_grubsign(char *osroot, char *osdev) 7031 { 7032 char *grubsign; /* (<sign>,#,#) */ 7033 char *slice; 7034 int fdiskpart; 7035 char *sign; 7036 char *fstype; 7037 int ret; 7038 const char *fcn = "get_grubsign()"; 7039 7040 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, osroot, osdev)); 7041 fstype = get_fstype(osroot); 7042 INJECT_ERROR1("GET_GRUBSIGN_FSTYPE", fstype = NULL); 7043 if (fstype == NULL) { 7044 bam_error(GET_FSTYPE_FAILED, osroot); 7045 return (NULL); 7046 } 7047 7048 sign = find_existing_sign(osroot, osdev, fstype); 7049 INJECT_ERROR1("FIND_EXISTING_SIGN", sign = NULL); 7050 if (sign == NULL) { 7051 BAM_DPRINTF((D_GET_GRUBSIGN_NO_EXISTING, fcn, osroot, osdev)); 7052 sign = create_new_sign(osdev, fstype); 7053 INJECT_ERROR1("CREATE_NEW_SIGN", sign = NULL); 7054 if (sign == NULL) { 7055 bam_error(GRUBSIGN_CREATE_FAIL, osdev); 7056 free(fstype); 7057 return (NULL); 7058 } 7059 } 7060 7061 ret = set_signature(osroot, osdev, sign, fstype); 7062 INJECT_ERROR1("SET_SIGNATURE_FAIL", ret = -1); 7063 if (ret == -1) { 7064 bam_error(GRUBSIGN_WRITE_FAIL, osdev); 7065 free(sign); 7066 free(fstype); 7067 (void) unlink(UFS_SIGNATURE_LIST); 7068 return (NULL); 7069 } 7070 7071 free(fstype); 7072 7073 if (bam_verbose) 7074 bam_print(GRUBSIGN_FOUND_OR_CREATED, sign, osdev); 7075 7076 fdiskpart = get_partition(osdev); 7077 INJECT_ERROR1("GET_GRUBSIGN_FDISK", fdiskpart = -1); 7078 if (fdiskpart == -1) { 7079 bam_error(FDISKPART_FAIL, osdev); 7080 free(sign); 7081 return (NULL); 7082 } 7083 7084 slice = strrchr(osdev, 's'); 7085 7086 grubsign = s_calloc(1, MAXNAMELEN + 10); 7087 if (slice) { 7088 (void) snprintf(grubsign, MAXNAMELEN + 10, "(%s,%d,%c)", 7089 sign, fdiskpart, slice[1] + 'a' - '0'); 7090 } else 7091 (void) snprintf(grubsign, MAXNAMELEN + 10, "(%s,%d)", 7092 sign, fdiskpart); 7093 7094 free(sign); 7095 7096 BAM_DPRINTF((D_GET_GRUBSIGN_SUCCESS, fcn, grubsign)); 7097 7098 return (grubsign); 7099 } 7100 7101 static char * 7102 get_title(char *rootdir) 7103 { 7104 static char title[80]; 7105 char *cp = NULL; 7106 char release[PATH_MAX]; 7107 FILE *fp; 7108 const char *fcn = "get_title()"; 7109 7110 /* open the /etc/release file */ 7111 (void) snprintf(release, sizeof (release), "%s/etc/release", rootdir); 7112 7113 fp = fopen(release, "r"); 7114 if (fp == NULL) { 7115 bam_error(OPEN_FAIL, release, strerror(errno)); 7116 cp = NULL; 7117 goto out; 7118 } 7119 7120 while (s_fgets(title, sizeof (title), fp) != NULL) { 7121 cp = strstr(title, "Solaris"); 7122 if (cp) 7123 break; 7124 } 7125 (void) fclose(fp); 7126 7127 out: 7128 cp = cp ? cp : "Solaris"; 7129 7130 BAM_DPRINTF((D_GET_TITLE, fcn, cp)); 7131 7132 return (cp); 7133 } 7134 7135 char * 7136 get_special(char *mountp) 7137 { 7138 FILE *mntfp; 7139 struct mnttab mp = {0}; 7140 struct mnttab mpref = {0}; 7141 int error; 7142 int ret; 7143 const char *fcn = "get_special()"; 7144 7145 INJECT_ERROR1("GET_SPECIAL_MNTPT", mountp = NULL); 7146 if (mountp == NULL) { 7147 bam_error(GET_SPECIAL_NULL_MNTPT); 7148 return (NULL); 7149 } 7150 7151 mntfp = fopen(MNTTAB, "r"); 7152 error = errno; 7153 INJECT_ERROR1("GET_SPECIAL_MNTTAB_OPEN", mntfp = NULL); 7154 if (mntfp == NULL) { 7155 bam_error(OPEN_FAIL, MNTTAB, strerror(error)); 7156 return (NULL); 7157 } 7158 7159 if (*mountp == '\0') 7160 mpref.mnt_mountp = "/"; 7161 else 7162 mpref.mnt_mountp = mountp; 7163 7164 ret = getmntany(mntfp, &mp, &mpref); 7165 INJECT_ERROR1("GET_SPECIAL_MNTTAB_SEARCH", ret = 1); 7166 if (ret != 0) { 7167 (void) fclose(mntfp); 7168 BAM_DPRINTF((D_GET_SPECIAL_NOT_IN_MNTTAB, fcn, mountp)); 7169 return (NULL); 7170 } 7171 (void) fclose(mntfp); 7172 7173 BAM_DPRINTF((D_GET_SPECIAL, fcn, mp.mnt_special)); 7174 7175 return (s_strdup(mp.mnt_special)); 7176 } 7177 7178 static void 7179 free_physarray(char **physarray, int n) 7180 { 7181 int i; 7182 const char *fcn = "free_physarray()"; 7183 7184 assert(physarray); 7185 assert(n); 7186 7187 BAM_DPRINTF((D_FUNC_ENTRY_N1, fcn, n)); 7188 7189 for (i = 0; i < n; i++) { 7190 free(physarray[i]); 7191 } 7192 free(physarray); 7193 7194 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 7195 } 7196 7197 static int 7198 zfs_get_physical(char *special, char ***physarray, int *n) 7199 { 7200 char sdup[PATH_MAX]; 7201 char cmd[PATH_MAX]; 7202 char dsk[PATH_MAX]; 7203 char *pool; 7204 filelist_t flist = {0}; 7205 line_t *lp; 7206 line_t *startlp; 7207 char *comp1; 7208 int i; 7209 int ret; 7210 const char *fcn = "zfs_get_physical()"; 7211 7212 assert(special); 7213 7214 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, special)); 7215 7216 INJECT_ERROR1("INVALID_ZFS_SPECIAL", special = "/foo"); 7217 if (special[0] == '/') { 7218 bam_error(INVALID_ZFS_SPECIAL, special); 7219 return (-1); 7220 } 7221 7222 (void) strlcpy(sdup, special, sizeof (sdup)); 7223 7224 pool = strtok(sdup, "/"); 7225 INJECT_ERROR1("ZFS_GET_PHYS_POOL", pool = NULL); 7226 if (pool == NULL) { 7227 bam_error(CANT_FIND_POOL_FROM_SPECIAL, special); 7228 return (-1); 7229 } 7230 7231 (void) snprintf(cmd, sizeof (cmd), "/sbin/zpool status %s", pool); 7232 7233 ret = exec_cmd(cmd, &flist); 7234 INJECT_ERROR1("ZFS_GET_PHYS_STATUS", ret = 1); 7235 if (ret != 0) { 7236 bam_error(ZFS_GET_POOL_STATUS, pool); 7237 return (-1); 7238 } 7239 7240 INJECT_ERROR1("ZFS_GET_PHYS_STATUS_OUT", flist.head = NULL); 7241 if (flist.head == NULL) { 7242 bam_error(BAD_ZPOOL_STATUS, pool); 7243 filelist_free(&flist); 7244 return (-1); 7245 } 7246 7247 for (lp = flist.head; lp; lp = lp->next) { 7248 BAM_DPRINTF((D_STRTOK_ZPOOL_STATUS, fcn, lp->line)); 7249 comp1 = strtok(lp->line, " \t"); 7250 if (comp1 == NULL) { 7251 free(lp->line); 7252 lp->line = NULL; 7253 } else { 7254 comp1 = s_strdup(comp1); 7255 free(lp->line); 7256 lp->line = comp1; 7257 } 7258 } 7259 7260 for (lp = flist.head; lp; lp = lp->next) { 7261 if (lp->line == NULL) 7262 continue; 7263 if (strcmp(lp->line, pool) == 0) { 7264 BAM_DPRINTF((D_FOUND_POOL_IN_ZPOOL_STATUS, fcn, pool)); 7265 break; 7266 } 7267 } 7268 7269 if (lp == NULL) { 7270 bam_error(NO_POOL_IN_ZPOOL_STATUS, pool); 7271 filelist_free(&flist); 7272 return (-1); 7273 } 7274 7275 startlp = lp->next; 7276 for (i = 0, lp = startlp; lp; lp = lp->next) { 7277 if (lp->line == NULL) 7278 continue; 7279 if (strcmp(lp->line, "mirror") == 0) 7280 continue; 7281 if (lp->line[0] == '\0' || strcmp(lp->line, "errors:") == 0) 7282 break; 7283 i++; 7284 BAM_DPRINTF((D_COUNTING_ZFS_PHYS, fcn, i)); 7285 } 7286 7287 if (i == 0) { 7288 bam_error(NO_PHYS_IN_ZPOOL_STATUS, pool); 7289 filelist_free(&flist); 7290 return (-1); 7291 } 7292 7293 *n = i; 7294 *physarray = s_calloc(*n, sizeof (char *)); 7295 for (i = 0, lp = startlp; lp; lp = lp->next) { 7296 if (lp->line == NULL) 7297 continue; 7298 if (strcmp(lp->line, "mirror") == 0) 7299 continue; 7300 if (strcmp(lp->line, "errors:") == 0) 7301 break; 7302 if (strncmp(lp->line, "/dev/dsk/", strlen("/dev/dsk/")) != 0 && 7303 strncmp(lp->line, "/dev/rdsk/", 7304 strlen("/dev/rdsk/")) != 0) { 7305 (void) snprintf(dsk, sizeof (dsk), "/dev/rdsk/%s", 7306 lp->line); 7307 } else { 7308 (void) strlcpy(dsk, lp->line, sizeof (dsk)); 7309 } 7310 BAM_DPRINTF((D_ADDING_ZFS_PHYS, fcn, dsk, pool)); 7311 (*physarray)[i++] = s_strdup(dsk); 7312 } 7313 7314 assert(i == *n); 7315 7316 filelist_free(&flist); 7317 7318 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 7319 return (0); 7320 } 7321 7322 /* 7323 * Certain services needed to run metastat successfully may not 7324 * be enabled. Enable them now. 7325 */ 7326 /* 7327 * Checks if the specified service is online 7328 * Returns: 1 if the service is online 7329 * 0 if the service is not online 7330 * -1 on error 7331 */ 7332 static int 7333 is_svc_online(char *svc) 7334 { 7335 char *state; 7336 const char *fcn = "is_svc_online()"; 7337 7338 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, svc)); 7339 7340 state = smf_get_state(svc); 7341 INJECT_ERROR2("GET_SVC_STATE", free(state), state = NULL); 7342 if (state == NULL) { 7343 bam_error(GET_SVC_STATE_ERR, svc); 7344 return (-1); 7345 } 7346 BAM_DPRINTF((D_GOT_SVC_STATUS, fcn, svc)); 7347 7348 if (strcmp(state, SCF_STATE_STRING_ONLINE) == 0) { 7349 BAM_DPRINTF((D_SVC_ONLINE, fcn, svc)); 7350 free(state); 7351 return (1); 7352 } 7353 7354 BAM_DPRINTF((D_SVC_NOT_ONLINE, fcn, state, svc)); 7355 7356 free(state); 7357 7358 return (0); 7359 } 7360 7361 static int 7362 enable_svc(char *svc) 7363 { 7364 int ret; 7365 int sleeptime; 7366 const char *fcn = "enable_svc()"; 7367 7368 ret = is_svc_online(svc); 7369 if (ret == -1) { 7370 bam_error(SVC_IS_ONLINE_FAILED, svc); 7371 return (-1); 7372 } else if (ret == 1) { 7373 BAM_DPRINTF((D_SVC_ALREADY_ONLINE, fcn, svc)); 7374 return (0); 7375 } 7376 7377 /* Service is not enabled. Enable it now. */ 7378 ret = smf_enable_instance(svc, 0); 7379 INJECT_ERROR1("ENABLE_SVC_FAILED", ret = -1); 7380 if (ret != 0) { 7381 bam_error(ENABLE_SVC_FAILED, svc); 7382 return (-1); 7383 } 7384 7385 BAM_DPRINTF((D_SVC_ONLINE_INITIATED, fcn, svc)); 7386 7387 sleeptime = 0; 7388 do { 7389 ret = is_svc_online(svc); 7390 INJECT_ERROR1("SVC_ONLINE_SUCCESS", ret = 1); 7391 INJECT_ERROR1("SVC_ONLINE_FAILURE", ret = -1); 7392 INJECT_ERROR1("SVC_ONLINE_NOTYET", ret = 0); 7393 if (ret == -1) { 7394 bam_error(ERR_SVC_GET_ONLINE, svc); 7395 return (-1); 7396 } else if (ret == 1) { 7397 BAM_DPRINTF((D_SVC_NOW_ONLINE, fcn, svc)); 7398 return (1); 7399 } 7400 (void) sleep(1); 7401 } while (++sleeptime < 60); 7402 7403 bam_error(TIMEOUT_ENABLE_SVC, svc); 7404 7405 return (-1); 7406 } 7407 7408 static int 7409 ufs_get_physical(char *special, char ***physarray, int *n) 7410 { 7411 char cmd[PATH_MAX]; 7412 char *shortname; 7413 filelist_t flist = {0}; 7414 char *meta; 7415 char *type; 7416 char *comp1; 7417 char *comp2; 7418 char *comp3; 7419 char *comp4; 7420 int i; 7421 line_t *lp; 7422 int ret; 7423 char *svc; 7424 const char *fcn = "ufs_get_physical()"; 7425 7426 assert(special); 7427 7428 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, special)); 7429 7430 if (strncmp(special, "/dev/md/", strlen("/dev/md/")) != 0) { 7431 bam_error(UFS_GET_PHYS_NOT_SVM, special); 7432 return (-1); 7433 } 7434 7435 if (strncmp(special, "/dev/md/dsk/", strlen("/dev/md/dsk/")) == 0) { 7436 shortname = special + strlen("/dev/md/dsk/"); 7437 } else if (strncmp(special, "/dev/md/rdsk/", 7438 strlen("/dev/md/rdsk/")) == 0) { 7439 shortname = special + strlen("/dev/md/rdsk"); 7440 } else { 7441 bam_error(UFS_GET_PHYS_INVALID_SVM, special); 7442 return (-1); 7443 } 7444 7445 BAM_DPRINTF((D_UFS_SVM_SHORT, fcn, special, shortname)); 7446 7447 svc = "network/rpc/meta:default"; 7448 if (enable_svc(svc) == -1) { 7449 bam_error(UFS_SVM_METASTAT_SVC_ERR, svc); 7450 } 7451 7452 (void) snprintf(cmd, sizeof (cmd), "/sbin/metastat -p %s", shortname); 7453 7454 ret = exec_cmd(cmd, &flist); 7455 INJECT_ERROR1("UFS_SVM_METASTAT", ret = 1); 7456 if (ret != 0) { 7457 bam_error(UFS_SVM_METASTAT_ERR, shortname); 7458 return (-1); 7459 } 7460 7461 INJECT_ERROR1("UFS_SVM_METASTAT_OUT", flist.head = NULL); 7462 if (flist.head == NULL) { 7463 bam_error(BAD_UFS_SVM_METASTAT, shortname); 7464 filelist_free(&flist); 7465 return (-1); 7466 } 7467 7468 /* 7469 * Check if not a mirror. We only parse a single metadevice 7470 * if not a mirror 7471 */ 7472 meta = strtok(flist.head->line, " \t"); 7473 type = strtok(NULL, " \t"); 7474 if (meta == NULL || type == NULL) { 7475 bam_error(ERROR_PARSE_UFS_SVM_METASTAT, shortname); 7476 filelist_free(&flist); 7477 return (-1); 7478 } 7479 if (strcmp(type, "-m") != 0) { 7480 comp1 = strtok(NULL, " \t"); 7481 comp2 = strtok(NULL, " \t"); 7482 if (comp1 == NULL || comp2 != NULL) { 7483 bam_error(INVALID_UFS_SVM_METASTAT, shortname); 7484 filelist_free(&flist); 7485 return (-1); 7486 } 7487 BAM_DPRINTF((D_UFS_SVM_ONE_COMP, fcn, comp1, shortname)); 7488 *physarray = s_calloc(1, sizeof (char *)); 7489 (*physarray)[0] = s_strdup(comp1); 7490 *n = 1; 7491 filelist_free(&flist); 7492 return (0); 7493 } 7494 7495 /* 7496 * Okay we have a mirror. Everything after the first line 7497 * is a submirror 7498 */ 7499 for (i = 0, lp = flist.head->next; lp; lp = lp->next) { 7500 if (strstr(lp->line, "/dev/dsk/") == NULL && 7501 strstr(lp->line, "/dev/rdsk/") == NULL) { 7502 bam_error(CANNOT_PARSE_UFS_SVM_METASTAT, shortname); 7503 filelist_free(&flist); 7504 return (-1); 7505 } 7506 i++; 7507 } 7508 7509 *physarray = s_calloc(i, sizeof (char *)); 7510 *n = i; 7511 7512 for (i = 0, lp = flist.head->next; lp; lp = lp->next) { 7513 comp1 = strtok(lp->line, " \t"); 7514 comp2 = strtok(NULL, " \t"); 7515 comp3 = strtok(NULL, " \t"); 7516 comp4 = strtok(NULL, " \t"); 7517 7518 if (comp3 == NULL || comp4 == NULL || 7519 (strncmp(comp4, "/dev/dsk/", strlen("/dev/dsk/")) != 0 && 7520 strncmp(comp4, "/dev/rdsk/", strlen("/dev/rdsk/")) != 0)) { 7521 bam_error(CANNOT_PARSE_UFS_SVM_SUBMIRROR, shortname); 7522 filelist_free(&flist); 7523 free_physarray(*physarray, *n); 7524 return (-1); 7525 } 7526 7527 (*physarray)[i++] = s_strdup(comp4); 7528 } 7529 7530 assert(i == *n); 7531 7532 filelist_free(&flist); 7533 7534 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 7535 return (0); 7536 } 7537 7538 static int 7539 get_physical(char *menu_root, char ***physarray, int *n) 7540 { 7541 char *special; 7542 int ret; 7543 const char *fcn = "get_physical()"; 7544 7545 assert(menu_root); 7546 assert(physarray); 7547 assert(n); 7548 7549 *physarray = NULL; 7550 *n = 0; 7551 7552 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, menu_root)); 7553 7554 /* First get the device special file from /etc/mnttab */ 7555 special = get_special(menu_root); 7556 INJECT_ERROR1("GET_PHYSICAL_SPECIAL", special = NULL); 7557 if (special == NULL) { 7558 bam_error(GET_SPECIAL_NULL, menu_root); 7559 return (-1); 7560 } 7561 7562 /* If already a physical device nothing to do */ 7563 if (strncmp(special, "/dev/dsk/", strlen("/dev/dsk/")) == 0 || 7564 strncmp(special, "/dev/rdsk/", strlen("/dev/rdsk/")) == 0) { 7565 BAM_DPRINTF((D_GET_PHYSICAL_ALREADY, fcn, menu_root, special)); 7566 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 7567 *physarray = s_calloc(1, sizeof (char *)); 7568 (*physarray)[0] = special; 7569 *n = 1; 7570 return (0); 7571 } 7572 7573 if (is_zfs(menu_root)) { 7574 ret = zfs_get_physical(special, physarray, n); 7575 } else if (is_ufs(menu_root)) { 7576 ret = ufs_get_physical(special, physarray, n); 7577 } else { 7578 bam_error(GET_PHYSICAL_NOTSUP_FSTYPE, menu_root, special); 7579 ret = -1; 7580 } 7581 7582 free(special); 7583 7584 INJECT_ERROR1("GET_PHYSICAL_RET", ret = -1); 7585 if (ret == -1) { 7586 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 7587 } else { 7588 int i; 7589 assert (*n > 0); 7590 for (i = 0; i < *n; i++) { 7591 BAM_DPRINTF((D_GET_PHYSICAL_RET, fcn, (*physarray)[i])); 7592 } 7593 } 7594 7595 return (ret); 7596 } 7597 7598 static int 7599 is_bootdisk(char *osroot, char *physical) 7600 { 7601 int ret; 7602 char *grubroot; 7603 char *bootp; 7604 const char *fcn = "is_bootdisk()"; 7605 7606 assert(osroot); 7607 assert(physical); 7608 7609 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, osroot, physical)); 7610 7611 bootp = strstr(physical, "p0:boot"); 7612 if (bootp) 7613 *bootp = '\0'; 7614 /* 7615 * We just want the BIOS mapping for menu disk. 7616 * Don't pass menu_root to get_grubroot() as the 7617 * check that it is used for is not relevant here. 7618 * The osroot is immaterial as well - it is only used to 7619 * to find create_diskmap script. Everything hinges on 7620 * "physical" 7621 */ 7622 grubroot = get_grubroot(osroot, physical, NULL); 7623 7624 INJECT_ERROR1("IS_BOOTDISK_GRUBROOT", grubroot = NULL); 7625 if (grubroot == NULL) { 7626 if (bam_verbose) 7627 bam_error(NO_GRUBROOT_FOR_DISK, physical); 7628 return (0); 7629 } 7630 ret = grubroot[3] == '0'; 7631 free(grubroot); 7632 7633 BAM_DPRINTF((D_RETURN_RET, fcn, ret)); 7634 7635 return (ret); 7636 } 7637 7638 /* 7639 * Check if menu is on the boot device 7640 * Return 0 (false) on error 7641 */ 7642 static int 7643 menu_on_bootdisk(char *osroot, char *menu_root) 7644 { 7645 char **physarray; 7646 int ret; 7647 int n; 7648 int i; 7649 int on_bootdisk; 7650 const char *fcn = "menu_on_bootdisk()"; 7651 7652 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, osroot, menu_root)); 7653 7654 ret = get_physical(menu_root, &physarray, &n); 7655 INJECT_ERROR1("MENU_ON_BOOTDISK_PHYSICAL", ret = -1); 7656 if (ret != 0) { 7657 bam_error(GET_PHYSICAL_MENU_NULL, menu_root); 7658 return (0); 7659 } 7660 7661 assert(physarray); 7662 assert(n > 0); 7663 7664 on_bootdisk = 0; 7665 for (i = 0; i < n; i++) { 7666 assert(strncmp(physarray[i], "/dev/dsk/", 7667 strlen("/dev/dsk/")) == 0 || 7668 strncmp(physarray[i], "/dev/rdsk/", 7669 strlen("/dev/rdsk/")) == 0); 7670 7671 BAM_DPRINTF((D_CHECK_ON_BOOTDISK, fcn, physarray[i])); 7672 if (is_bootdisk(osroot, physarray[i])) { 7673 on_bootdisk = 1; 7674 BAM_DPRINTF((D_IS_ON_BOOTDISK, fcn, physarray[i])); 7675 } 7676 } 7677 7678 free_physarray(physarray, n); 7679 7680 INJECT_ERROR1("ON_BOOTDISK_YES", on_bootdisk = 1); 7681 INJECT_ERROR1("ON_BOOTDISK_NO", on_bootdisk = 0); 7682 if (on_bootdisk) { 7683 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 7684 } else { 7685 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 7686 } 7687 7688 return (on_bootdisk); 7689 } 7690 7691 void 7692 bam_add_line(menu_t *mp, entry_t *entry, line_t *prev, line_t *lp) 7693 { 7694 const char *fcn = "bam_add_line()"; 7695 7696 assert(mp); 7697 assert(entry); 7698 assert(prev); 7699 assert(lp); 7700 7701 lp->next = prev->next; 7702 if (prev->next) { 7703 BAM_DPRINTF((D_ADD_LINE_PREV_NEXT, fcn)); 7704 prev->next->prev = lp; 7705 } else { 7706 BAM_DPRINTF((D_ADD_LINE_NOT_PREV_NEXT, fcn)); 7707 } 7708 prev->next = lp; 7709 lp->prev = prev; 7710 7711 if (entry->end == prev) { 7712 BAM_DPRINTF((D_ADD_LINE_LAST_LINE_IN_ENTRY, fcn)); 7713 entry->end = lp; 7714 } 7715 if (mp->end == prev) { 7716 assert(lp->next == NULL); 7717 mp->end = lp; 7718 BAM_DPRINTF((D_ADD_LINE_LAST_LINE_IN_MENU, fcn)); 7719 } 7720 } 7721 7722 /* 7723 * look for matching bootadm entry with specified parameters 7724 * Here are the rules (based on existing usage): 7725 * - If title is specified, match on title only 7726 * - Else, match on root/findroot, kernel, and module. 7727 * Note that, if root_opt is non-zero, the absence of 7728 * root line is considered a match. 7729 */ 7730 static entry_t * 7731 find_boot_entry( 7732 menu_t *mp, 7733 char *title, 7734 char *kernel, 7735 char *findroot, 7736 char *root, 7737 char *module, 7738 int root_opt, 7739 int *entry_num) 7740 { 7741 int i; 7742 line_t *lp; 7743 entry_t *ent; 7744 const char *fcn = "find_boot_entry()"; 7745 7746 if (entry_num) 7747 *entry_num = BAM_ERROR; 7748 7749 /* find matching entry */ 7750 for (i = 0, ent = mp->entries; ent; i++, ent = ent->next) { 7751 lp = ent->start; 7752 7753 /* first line of entry must be bootadm comment */ 7754 lp = ent->start; 7755 if (lp->flags != BAM_COMMENT || 7756 strcmp(lp->arg, BAM_BOOTADM_HDR) != 0) { 7757 continue; 7758 } 7759 7760 /* advance to title line */ 7761 lp = lp->next; 7762 if (title) { 7763 if (lp->flags == BAM_TITLE && lp->arg && 7764 strcmp(lp->arg, title) == 0) { 7765 BAM_DPRINTF((D_MATCHED_TITLE, fcn, title)); 7766 break; 7767 } 7768 BAM_DPRINTF((D_NOMATCH_TITLE, fcn, title, lp->arg)); 7769 continue; /* check title only */ 7770 } 7771 7772 lp = lp->next; /* advance to root line */ 7773 if (lp == NULL) { 7774 continue; 7775 } else if (lp->cmd != NULL && 7776 strcmp(lp->cmd, menu_cmds[FINDROOT_CMD]) == 0) { 7777 INJECT_ERROR1("FIND_BOOT_ENTRY_NULL_FINDROOT", 7778 findroot = NULL); 7779 if (findroot == NULL) { 7780 BAM_DPRINTF((D_NOMATCH_FINDROOT_NULL, 7781 fcn, lp->arg)); 7782 continue; 7783 } 7784 /* findroot command found, try match */ 7785 if (strcmp(lp->arg, findroot) != 0) { 7786 BAM_DPRINTF((D_NOMATCH_FINDROOT, 7787 fcn, findroot, lp->arg)); 7788 continue; 7789 } 7790 BAM_DPRINTF((D_MATCHED_FINDROOT, fcn, findroot)); 7791 lp = lp->next; /* advance to kernel line */ 7792 } else if (lp->cmd != NULL && 7793 strcmp(lp->cmd, menu_cmds[ROOT_CMD]) == 0) { 7794 INJECT_ERROR1("FIND_BOOT_ENTRY_NULL_ROOT", root = NULL); 7795 if (root == NULL) { 7796 BAM_DPRINTF((D_NOMATCH_ROOT_NULL, 7797 fcn, lp->arg)); 7798 continue; 7799 } 7800 /* root cmd found, try match */ 7801 if (strcmp(lp->arg, root) != 0) { 7802 BAM_DPRINTF((D_NOMATCH_ROOT, 7803 fcn, root, lp->arg)); 7804 continue; 7805 } 7806 BAM_DPRINTF((D_MATCHED_ROOT, fcn, root)); 7807 lp = lp->next; /* advance to kernel line */ 7808 } else { 7809 INJECT_ERROR1("FIND_BOOT_ENTRY_ROOT_OPT_NO", 7810 root_opt = 0); 7811 INJECT_ERROR1("FIND_BOOT_ENTRY_ROOT_OPT_YES", 7812 root_opt = 1); 7813 /* no root command, see if root is optional */ 7814 if (root_opt == 0) { 7815 BAM_DPRINTF((D_NO_ROOT_OPT, fcn)); 7816 continue; 7817 } 7818 BAM_DPRINTF((D_ROOT_OPT, fcn)); 7819 } 7820 7821 if (lp == NULL || lp->next == NULL) { 7822 continue; 7823 } 7824 7825 if (kernel && 7826 (!check_cmd(lp->cmd, KERNEL_CMD, lp->arg, kernel))) { 7827 if (!(ent->flags & BAM_ENTRY_FAILSAFE) || 7828 !(ent->flags & BAM_ENTRY_DBOOT) || 7829 strcmp(kernel, DIRECT_BOOT_FAILSAFE_LINE) != 0) 7830 continue; 7831 7832 ent->flags |= BAM_ENTRY_UPGFSKERNEL; 7833 7834 } 7835 BAM_DPRINTF((D_KERNEL_MATCH, fcn, kernel, lp->arg)); 7836 7837 /* 7838 * Check for matching module entry (failsafe or normal). 7839 * If it fails to match, we go around the loop again. 7840 * For xpv entries, there are two module lines, so we 7841 * do the check twice. 7842 */ 7843 lp = lp->next; /* advance to module line */ 7844 if (check_cmd(lp->cmd, MODULE_CMD, lp->arg, module) || 7845 (((lp = lp->next) != NULL) && 7846 check_cmd(lp->cmd, MODULE_CMD, lp->arg, module))) { 7847 /* match found */ 7848 BAM_DPRINTF((D_MODULE_MATCH, fcn, module, lp->arg)); 7849 break; 7850 } 7851 7852 if (strcmp(module, FAILSAFE_ARCHIVE) == 0 && 7853 (strcmp(lp->prev->arg, FAILSAFE_ARCHIVE_32) == 0 || 7854 strcmp(lp->prev->arg, FAILSAFE_ARCHIVE_64) == 0)) { 7855 ent->flags |= BAM_ENTRY_UPGFSMODULE; 7856 break; 7857 } 7858 7859 } 7860 7861 if (ent && entry_num) { 7862 *entry_num = i; 7863 } 7864 7865 if (ent) { 7866 BAM_DPRINTF((D_RETURN_RET, fcn, i)); 7867 } else { 7868 BAM_DPRINTF((D_RETURN_RET, fcn, BAM_ERROR)); 7869 } 7870 return (ent); 7871 } 7872 7873 static int 7874 update_boot_entry(menu_t *mp, char *title, char *findroot, char *root, 7875 char *kernel, char *mod_kernel, char *module, int root_opt) 7876 { 7877 int i; 7878 int change_kernel = 0; 7879 entry_t *ent; 7880 line_t *lp; 7881 line_t *tlp; 7882 char linebuf[BAM_MAXLINE]; 7883 const char *fcn = "update_boot_entry()"; 7884 7885 /* note: don't match on title, it's updated on upgrade */ 7886 ent = find_boot_entry(mp, NULL, kernel, findroot, root, module, 7887 root_opt, &i); 7888 if ((ent == NULL) && (bam_direct == BAM_DIRECT_DBOOT)) { 7889 /* 7890 * We may be upgrading a kernel from multiboot to 7891 * directboot. Look for a multiboot entry. A multiboot 7892 * entry will not have a findroot line. 7893 */ 7894 ent = find_boot_entry(mp, NULL, "multiboot", NULL, root, 7895 MULTIBOOT_ARCHIVE, root_opt, &i); 7896 if (ent != NULL) { 7897 BAM_DPRINTF((D_UPGRADE_FROM_MULTIBOOT, fcn, root)); 7898 change_kernel = 1; 7899 } 7900 } else if (ent) { 7901 BAM_DPRINTF((D_FOUND_FINDROOT, fcn, findroot)); 7902 } 7903 7904 if (ent == NULL) { 7905 BAM_DPRINTF((D_ENTRY_NOT_FOUND_CREATING, fcn, findroot)); 7906 return (add_boot_entry(mp, title, findroot, 7907 kernel, mod_kernel, module, NULL)); 7908 } 7909 7910 /* replace title of existing entry and update findroot line */ 7911 lp = ent->start; 7912 lp = lp->next; /* title line */ 7913 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 7914 menu_cmds[TITLE_CMD], menu_cmds[SEP_CMD], title); 7915 free(lp->arg); 7916 free(lp->line); 7917 lp->arg = s_strdup(title); 7918 lp->line = s_strdup(linebuf); 7919 BAM_DPRINTF((D_CHANGING_TITLE, fcn, title)); 7920 7921 tlp = lp; /* title line */ 7922 lp = lp->next; /* root line */ 7923 7924 /* if no root or findroot command, create a new line_t */ 7925 if ((lp->cmd != NULL) && (strcmp(lp->cmd, menu_cmds[ROOT_CMD]) != 0 && 7926 strcmp(lp->cmd, menu_cmds[FINDROOT_CMD]) != 0)) { 7927 lp = s_calloc(1, sizeof (line_t)); 7928 bam_add_line(mp, ent, tlp, lp); 7929 } else { 7930 if (lp->cmd != NULL) 7931 free(lp->cmd); 7932 7933 free(lp->sep); 7934 free(lp->arg); 7935 free(lp->line); 7936 } 7937 7938 lp->cmd = s_strdup(menu_cmds[FINDROOT_CMD]); 7939 lp->sep = s_strdup(menu_cmds[SEP_CMD]); 7940 lp->arg = s_strdup(findroot); 7941 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 7942 menu_cmds[FINDROOT_CMD], menu_cmds[SEP_CMD], findroot); 7943 lp->line = s_strdup(linebuf); 7944 BAM_DPRINTF((D_ADDING_FINDROOT_LINE, fcn, findroot)); 7945 7946 /* kernel line */ 7947 lp = lp->next; 7948 7949 if (ent->flags & BAM_ENTRY_UPGFSKERNEL) { 7950 char *params = NULL; 7951 7952 params = strstr(lp->line, "-s"); 7953 if (params != NULL) 7954 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s%s", 7955 menu_cmds[KERNEL_DOLLAR_CMD], menu_cmds[SEP_CMD], 7956 kernel, params+2); 7957 else 7958 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 7959 menu_cmds[KERNEL_DOLLAR_CMD], menu_cmds[SEP_CMD], 7960 kernel); 7961 7962 if (lp->cmd != NULL) 7963 free(lp->cmd); 7964 7965 free(lp->arg); 7966 free(lp->line); 7967 lp->cmd = s_strdup(menu_cmds[KERNEL_DOLLAR_CMD]); 7968 lp->arg = s_strdup(strstr(linebuf, "/")); 7969 lp->line = s_strdup(linebuf); 7970 ent->flags &= ~BAM_ENTRY_UPGFSKERNEL; 7971 BAM_DPRINTF((D_ADDING_KERNEL_DOLLAR, fcn, lp->prev->cmd)); 7972 } 7973 7974 if (change_kernel) { 7975 /* 7976 * We're upgrading from multiboot to directboot. 7977 */ 7978 if (lp->cmd != NULL && 7979 strcmp(lp->cmd, menu_cmds[KERNEL_CMD]) == 0) { 7980 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 7981 menu_cmds[KERNEL_DOLLAR_CMD], menu_cmds[SEP_CMD], 7982 kernel); 7983 free(lp->cmd); 7984 free(lp->arg); 7985 free(lp->line); 7986 lp->cmd = s_strdup(menu_cmds[KERNEL_DOLLAR_CMD]); 7987 lp->arg = s_strdup(kernel); 7988 lp->line = s_strdup(linebuf); 7989 lp = lp->next; 7990 BAM_DPRINTF((D_ADDING_KERNEL_DOLLAR, fcn, kernel)); 7991 } 7992 if (lp->cmd != NULL && 7993 strcmp(lp->cmd, menu_cmds[MODULE_CMD]) == 0) { 7994 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 7995 menu_cmds[MODULE_DOLLAR_CMD], menu_cmds[SEP_CMD], 7996 module); 7997 free(lp->cmd); 7998 free(lp->arg); 7999 free(lp->line); 8000 lp->cmd = s_strdup(menu_cmds[MODULE_DOLLAR_CMD]); 8001 lp->arg = s_strdup(module); 8002 lp->line = s_strdup(linebuf); 8003 lp = lp->next; 8004 BAM_DPRINTF((D_ADDING_MODULE_DOLLAR, fcn, module)); 8005 } 8006 } 8007 8008 /* module line */ 8009 lp = lp->next; 8010 8011 if (ent->flags & BAM_ENTRY_UPGFSMODULE) { 8012 if (lp->cmd != NULL && 8013 strcmp(lp->cmd, menu_cmds[MODULE_CMD]) == 0) { 8014 (void) snprintf(linebuf, sizeof (linebuf), "%s%s%s", 8015 menu_cmds[MODULE_DOLLAR_CMD], menu_cmds[SEP_CMD], 8016 module); 8017 free(lp->cmd); 8018 free(lp->arg); 8019 free(lp->line); 8020 lp->cmd = s_strdup(menu_cmds[MODULE_DOLLAR_CMD]); 8021 lp->arg = s_strdup(module); 8022 lp->line = s_strdup(linebuf); 8023 lp = lp->next; 8024 ent->flags &= ~BAM_ENTRY_UPGFSMODULE; 8025 BAM_DPRINTF((D_ADDING_MODULE_DOLLAR, fcn, module)); 8026 } 8027 } 8028 8029 BAM_DPRINTF((D_RETURN_RET, fcn, i)); 8030 return (i); 8031 } 8032 8033 int 8034 root_optional(char *osroot, char *menu_root) 8035 { 8036 char *ospecial; 8037 char *mspecial; 8038 char *slash; 8039 int root_opt; 8040 int ret1; 8041 int ret2; 8042 const char *fcn = "root_optional()"; 8043 8044 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, osroot, menu_root)); 8045 8046 /* 8047 * For all filesystems except ZFS, a straight compare of osroot 8048 * and menu_root will tell us if root is optional. 8049 * For ZFS, the situation is complicated by the fact that 8050 * menu_root and osroot are always different 8051 */ 8052 ret1 = is_zfs(osroot); 8053 ret2 = is_zfs(menu_root); 8054 INJECT_ERROR1("ROOT_OPT_NOT_ZFS", ret1 = 0); 8055 if (!ret1 || !ret2) { 8056 BAM_DPRINTF((D_ROOT_OPT_NOT_ZFS, fcn, osroot, menu_root)); 8057 root_opt = (strcmp(osroot, menu_root) == 0); 8058 goto out; 8059 } 8060 8061 ospecial = get_special(osroot); 8062 INJECT_ERROR1("ROOT_OPTIONAL_OSPECIAL", ospecial = NULL); 8063 if (ospecial == NULL) { 8064 bam_error(GET_OSROOT_SPECIAL_ERR, osroot); 8065 return (0); 8066 } 8067 BAM_DPRINTF((D_ROOT_OPTIONAL_OSPECIAL, fcn, ospecial, osroot)); 8068 8069 mspecial = get_special(menu_root); 8070 INJECT_ERROR1("ROOT_OPTIONAL_MSPECIAL", mspecial = NULL); 8071 if (mspecial == NULL) { 8072 bam_error(GET_MENU_ROOT_SPECIAL_ERR, menu_root); 8073 free(ospecial); 8074 return (0); 8075 } 8076 BAM_DPRINTF((D_ROOT_OPTIONAL_MSPECIAL, fcn, mspecial, menu_root)); 8077 8078 slash = strchr(ospecial, '/'); 8079 if (slash) 8080 *slash = '\0'; 8081 BAM_DPRINTF((D_ROOT_OPTIONAL_FIXED_OSPECIAL, fcn, ospecial, osroot)); 8082 8083 root_opt = (strcmp(ospecial, mspecial) == 0); 8084 8085 free(ospecial); 8086 free(mspecial); 8087 8088 out: 8089 INJECT_ERROR1("ROOT_OPTIONAL_NO", root_opt = 0); 8090 INJECT_ERROR1("ROOT_OPTIONAL_YES", root_opt = 1); 8091 if (root_opt) { 8092 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 8093 } else { 8094 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 8095 } 8096 8097 return (root_opt); 8098 } 8099 8100 /*ARGSUSED*/ 8101 static error_t 8102 update_entry(menu_t *mp, char *menu_root, char *osdev) 8103 { 8104 int entry; 8105 char *grubsign; 8106 char *grubroot; 8107 char *title; 8108 char osroot[PATH_MAX]; 8109 char *failsafe_kernel = NULL; 8110 struct stat sbuf; 8111 char failsafe[256]; 8112 char failsafe_64[256]; 8113 int ret; 8114 const char *fcn = "update_entry()"; 8115 8116 assert(mp); 8117 assert(menu_root); 8118 assert(osdev); 8119 assert(bam_root); 8120 8121 BAM_DPRINTF((D_FUNC_ENTRY3, fcn, menu_root, osdev, bam_root)); 8122 8123 (void) strlcpy(osroot, bam_root, sizeof (osroot)); 8124 8125 title = get_title(osroot); 8126 assert(title); 8127 8128 grubsign = get_grubsign(osroot, osdev); 8129 INJECT_ERROR1("GET_GRUBSIGN_FAIL", grubsign = NULL); 8130 if (grubsign == NULL) { 8131 bam_error(GET_GRUBSIGN_ERROR, osroot, osdev); 8132 return (BAM_ERROR); 8133 } 8134 8135 /* 8136 * It is not a fatal error if get_grubroot() fails 8137 * We no longer rely on biosdev to populate the 8138 * menu 8139 */ 8140 grubroot = get_grubroot(osroot, osdev, menu_root); 8141 INJECT_ERROR1("GET_GRUBROOT_FAIL", grubroot = NULL); 8142 if (grubroot) { 8143 BAM_DPRINTF((D_GET_GRUBROOT_SUCCESS, 8144 fcn, osroot, osdev, menu_root)); 8145 } else { 8146 BAM_DPRINTF((D_GET_GRUBROOT_FAILURE, 8147 fcn, osroot, osdev, menu_root)); 8148 } 8149 8150 /* add the entry for normal Solaris */ 8151 INJECT_ERROR1("UPDATE_ENTRY_MULTIBOOT", 8152 bam_direct = BAM_DIRECT_MULTIBOOT); 8153 if (bam_direct == BAM_DIRECT_DBOOT) { 8154 entry = update_boot_entry(mp, title, grubsign, grubroot, 8155 (bam_zfs ? DIRECT_BOOT_KERNEL_ZFS : DIRECT_BOOT_KERNEL), 8156 NULL, DIRECT_BOOT_ARCHIVE, 8157 root_optional(osroot, menu_root)); 8158 BAM_DPRINTF((D_UPDATED_BOOT_ENTRY, fcn, bam_zfs, grubsign)); 8159 if ((entry != BAM_ERROR) && (bam_is_hv == BAM_HV_PRESENT)) { 8160 (void) update_boot_entry(mp, NEW_HV_ENTRY, grubsign, 8161 grubroot, XEN_MENU, bam_zfs ? 8162 XEN_KERNEL_MODULE_LINE_ZFS : XEN_KERNEL_MODULE_LINE, 8163 DIRECT_BOOT_ARCHIVE, 8164 root_optional(osroot, menu_root)); 8165 BAM_DPRINTF((D_UPDATED_HV_ENTRY, 8166 fcn, bam_zfs, grubsign)); 8167 } 8168 } else { 8169 entry = update_boot_entry(mp, title, grubsign, grubroot, 8170 MULTI_BOOT, NULL, MULTIBOOT_ARCHIVE, 8171 root_optional(osroot, menu_root)); 8172 8173 BAM_DPRINTF((D_UPDATED_MULTIBOOT_ENTRY, fcn, grubsign)); 8174 } 8175 8176 /* 8177 * Add the entry for failsafe archive. On a bfu'd system, the 8178 * failsafe may be different than the installed kernel. 8179 */ 8180 (void) snprintf(failsafe, sizeof (failsafe), "%s%s", 8181 osroot, FAILSAFE_ARCHIVE_32); 8182 (void) snprintf(failsafe_64, sizeof (failsafe_64), "%s%s", 8183 osroot, FAILSAFE_ARCHIVE_64); 8184 8185 /* 8186 * Check if at least one of the two archives exists 8187 * Using $ISADIR as the default line, we have an entry which works 8188 * for both the cases. 8189 */ 8190 8191 if (stat(failsafe, &sbuf) == 0 || stat(failsafe_64, &sbuf) == 0) { 8192 8193 /* Figure out where the kernel line should point */ 8194 (void) snprintf(failsafe, sizeof (failsafe), "%s%s", osroot, 8195 DIRECT_BOOT_FAILSAFE_32); 8196 (void) snprintf(failsafe_64, sizeof (failsafe_64), "%s%s", 8197 osroot, DIRECT_BOOT_FAILSAFE_64); 8198 if (stat(failsafe, &sbuf) == 0 || 8199 stat(failsafe_64, &sbuf) == 0) { 8200 failsafe_kernel = DIRECT_BOOT_FAILSAFE_LINE; 8201 } else { 8202 (void) snprintf(failsafe, sizeof (failsafe), "%s%s", 8203 osroot, MULTI_BOOT_FAILSAFE); 8204 if (stat(failsafe, &sbuf) == 0) { 8205 failsafe_kernel = MULTI_BOOT_FAILSAFE_LINE; 8206 } 8207 } 8208 if (failsafe_kernel != NULL) { 8209 (void) update_boot_entry(mp, FAILSAFE_TITLE, grubsign, 8210 grubroot, failsafe_kernel, NULL, FAILSAFE_ARCHIVE, 8211 root_optional(osroot, menu_root)); 8212 BAM_DPRINTF((D_UPDATED_FAILSAFE_ENTRY, fcn, 8213 failsafe_kernel)); 8214 } 8215 } 8216 free(grubroot); 8217 8218 INJECT_ERROR1("UPDATE_ENTRY_ERROR", entry = BAM_ERROR); 8219 if (entry == BAM_ERROR) { 8220 bam_error(FAILED_TO_ADD_BOOT_ENTRY, title, grubsign); 8221 free(grubsign); 8222 return (BAM_ERROR); 8223 } 8224 free(grubsign); 8225 8226 update_numbering(mp); 8227 ret = set_global(mp, menu_cmds[DEFAULT_CMD], entry); 8228 INJECT_ERROR1("SET_DEFAULT_ERROR", ret = BAM_ERROR); 8229 if (ret == BAM_ERROR) { 8230 bam_error(SET_DEFAULT_FAILED, entry); 8231 } 8232 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 8233 return (BAM_WRITE); 8234 } 8235 8236 static void 8237 save_default_entry(menu_t *mp, const char *which) 8238 { 8239 int lineNum; 8240 int entryNum; 8241 int entry = 0; /* default is 0 */ 8242 char linebuf[BAM_MAXLINE]; 8243 line_t *lp = mp->curdefault; 8244 const char *fcn = "save_default_entry()"; 8245 8246 if (mp->start) { 8247 lineNum = mp->end->lineNum; 8248 entryNum = mp->end->entryNum; 8249 } else { 8250 lineNum = LINE_INIT; 8251 entryNum = ENTRY_INIT; 8252 } 8253 8254 if (lp) 8255 entry = s_strtol(lp->arg); 8256 8257 (void) snprintf(linebuf, sizeof (linebuf), "#%s%d", which, entry); 8258 BAM_DPRINTF((D_SAVING_DEFAULT_TO, fcn, linebuf)); 8259 line_parser(mp, linebuf, &lineNum, &entryNum); 8260 BAM_DPRINTF((D_SAVED_DEFAULT_TO, fcn, lineNum, entryNum)); 8261 } 8262 8263 static void 8264 restore_default_entry(menu_t *mp, const char *which, line_t *lp) 8265 { 8266 int entry; 8267 char *str; 8268 const char *fcn = "restore_default_entry()"; 8269 8270 if (lp == NULL) { 8271 BAM_DPRINTF((D_RESTORE_DEFAULT_NULL, fcn)); 8272 return; /* nothing to restore */ 8273 } 8274 8275 BAM_DPRINTF((D_RESTORE_DEFAULT_STR, fcn, which)); 8276 8277 str = lp->arg + strlen(which); 8278 entry = s_strtol(str); 8279 (void) set_global(mp, menu_cmds[DEFAULT_CMD], entry); 8280 8281 BAM_DPRINTF((D_RESTORED_DEFAULT_TO, fcn, entry)); 8282 8283 /* delete saved old default line */ 8284 unlink_line(mp, lp); 8285 line_free(lp); 8286 } 8287 8288 /* 8289 * This function is for supporting reboot with args. 8290 * The opt value can be: 8291 * NULL delete temp entry, if present 8292 * entry=<n> switches default entry to <n> 8293 * else treated as boot-args and setup a temperary menu entry 8294 * and make it the default 8295 * Note that we are always rebooting the current OS instance 8296 * so osroot == / always. 8297 */ 8298 #define REBOOT_TITLE "Solaris_reboot_transient" 8299 8300 /*ARGSUSED*/ 8301 static error_t 8302 update_temp(menu_t *mp, char *dummy, char *opt) 8303 { 8304 int entry; 8305 char *osdev; 8306 char *fstype; 8307 char *sign; 8308 char *opt_ptr; 8309 char *path; 8310 char kernbuf[BUFSIZ]; 8311 char args_buf[BUFSIZ]; 8312 char signbuf[PATH_MAX]; 8313 int ret; 8314 const char *fcn = "update_temp()"; 8315 8316 assert(mp); 8317 assert(dummy == NULL); 8318 8319 /* opt can be NULL */ 8320 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, opt ? opt : "<NULL>")); 8321 BAM_DPRINTF((D_BAM_ROOT, fcn, bam_alt_root, bam_root)); 8322 8323 if (bam_alt_root || bam_rootlen != 1 || 8324 strcmp(bam_root, "/") != 0 || 8325 strcmp(rootbuf, "/") != 0) { 8326 bam_error(ALT_ROOT_INVALID, bam_root); 8327 return (BAM_ERROR); 8328 } 8329 8330 /* If no option, delete exiting reboot menu entry */ 8331 if (opt == NULL) { 8332 entry_t *ent; 8333 BAM_DPRINTF((D_OPT_NULL, fcn)); 8334 ent = find_boot_entry(mp, REBOOT_TITLE, NULL, NULL, 8335 NULL, NULL, 0, &entry); 8336 if (ent == NULL) { /* not found is ok */ 8337 BAM_DPRINTF((D_TRANSIENT_NOTFOUND, fcn)); 8338 return (BAM_SUCCESS); 8339 } 8340 (void) delete_boot_entry(mp, entry, DBE_PRINTERR); 8341 restore_default_entry(mp, BAM_OLDDEF, mp->olddefault); 8342 mp->olddefault = NULL; 8343 BAM_DPRINTF((D_RESTORED_DEFAULT, fcn)); 8344 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 8345 return (BAM_WRITE); 8346 } 8347 8348 /* if entry= is specified, set the default entry */ 8349 if (strncmp(opt, "entry=", strlen("entry=")) == 0) { 8350 int entryNum = s_strtol(opt + strlen("entry=")); 8351 BAM_DPRINTF((D_ENTRY_EQUALS, fcn, opt)); 8352 if (selector(mp, opt, &entry, NULL) == BAM_SUCCESS) { 8353 /* this is entry=# option */ 8354 ret = set_global(mp, menu_cmds[DEFAULT_CMD], entry); 8355 BAM_DPRINTF((D_ENTRY_SET_IS, fcn, entry, ret)); 8356 return (ret); 8357 } else { 8358 bam_error(SET_DEFAULT_FAILED, entryNum); 8359 return (BAM_ERROR); 8360 } 8361 } 8362 8363 /* 8364 * add a new menu entry based on opt and make it the default 8365 */ 8366 8367 fstype = get_fstype("/"); 8368 INJECT_ERROR1("REBOOT_FSTYPE_NULL", fstype = NULL); 8369 if (fstype == NULL) { 8370 bam_error(REBOOT_FSTYPE_FAILED); 8371 return (BAM_ERROR); 8372 } 8373 8374 osdev = get_special("/"); 8375 INJECT_ERROR1("REBOOT_SPECIAL_NULL", osdev = NULL); 8376 if (osdev == NULL) { 8377 free(fstype); 8378 bam_error(REBOOT_SPECIAL_FAILED); 8379 return (BAM_ERROR); 8380 } 8381 8382 sign = find_existing_sign("/", osdev, fstype); 8383 INJECT_ERROR1("REBOOT_SIGN_NULL", sign = NULL); 8384 if (sign == NULL) { 8385 free(fstype); 8386 free(osdev); 8387 bam_error(REBOOT_SIGN_FAILED); 8388 return (BAM_ERROR); 8389 } 8390 8391 free(osdev); 8392 (void) strlcpy(signbuf, sign, sizeof (signbuf)); 8393 free(sign); 8394 8395 assert(strchr(signbuf, '(') == NULL && strchr(signbuf, ',') == NULL && 8396 strchr(signbuf, ')') == NULL); 8397 8398 /* 8399 * There is no alternate root while doing reboot with args 8400 * This version of bootadm is only delivered with a DBOOT 8401 * version of Solaris. 8402 */ 8403 INJECT_ERROR1("REBOOT_NOT_DBOOT", bam_direct = BAM_DIRECT_MULTIBOOT); 8404 if (bam_direct != BAM_DIRECT_DBOOT) { 8405 free(fstype); 8406 bam_error(REBOOT_DIRECT_FAILED); 8407 return (BAM_ERROR); 8408 } 8409 8410 /* add an entry for Solaris reboot */ 8411 if (opt[0] == '-') { 8412 /* It's an option - first see if boot-file is set */ 8413 ret = get_kernel(mp, KERNEL_CMD, kernbuf, sizeof (kernbuf)); 8414 INJECT_ERROR1("REBOOT_GET_KERNEL", ret = BAM_ERROR); 8415 if (ret != BAM_SUCCESS) { 8416 free(fstype); 8417 bam_error(REBOOT_GET_KERNEL_FAILED); 8418 return (BAM_ERROR); 8419 } 8420 if (kernbuf[0] == '\0') 8421 (void) strlcpy(kernbuf, DIRECT_BOOT_KERNEL, 8422 sizeof (kernbuf)); 8423 /* 8424 * If this is a zfs file system and kernbuf does not 8425 * have "-B $ZFS-BOOTFS" string yet, add it. 8426 */ 8427 if (strcmp(fstype, "zfs") == 0 && !strstr(kernbuf, ZFS_BOOT)) { 8428 (void) strlcat(kernbuf, " ", sizeof (kernbuf)); 8429 (void) strlcat(kernbuf, ZFS_BOOT, sizeof (kernbuf)); 8430 } 8431 (void) strlcat(kernbuf, " ", sizeof (kernbuf)); 8432 (void) strlcat(kernbuf, opt, sizeof (kernbuf)); 8433 BAM_DPRINTF((D_REBOOT_OPTION, fcn, kernbuf)); 8434 } else if (opt[0] == '/') { 8435 /* It's a full path, so write it out. */ 8436 (void) strlcpy(kernbuf, opt, sizeof (kernbuf)); 8437 8438 /* 8439 * If someone runs: 8440 * 8441 * # eeprom boot-args='-kd' 8442 * # reboot /platform/i86pc/kernel/unix 8443 * 8444 * we want to use the boot-args as part of the boot 8445 * line. On the other hand, if someone runs: 8446 * 8447 * # reboot "/platform/i86pc/kernel/unix -kd" 8448 * 8449 * we don't need to mess with boot-args. If there's 8450 * no space in the options string, assume we're in the 8451 * first case. 8452 */ 8453 if (strchr(opt, ' ') == NULL) { 8454 ret = get_kernel(mp, ARGS_CMD, args_buf, 8455 sizeof (args_buf)); 8456 INJECT_ERROR1("REBOOT_GET_ARGS", ret = BAM_ERROR); 8457 if (ret != BAM_SUCCESS) { 8458 free(fstype); 8459 bam_error(REBOOT_GET_ARGS_FAILED); 8460 return (BAM_ERROR); 8461 } 8462 8463 if (args_buf[0] != '\0') { 8464 (void) strlcat(kernbuf, " ", sizeof (kernbuf)); 8465 (void) strlcat(kernbuf, args_buf, 8466 sizeof (kernbuf)); 8467 } 8468 } 8469 BAM_DPRINTF((D_REBOOT_ABSPATH, fcn, kernbuf)); 8470 } else { 8471 /* 8472 * It may be a partial path, or it may be a partial 8473 * path followed by options. Assume that only options 8474 * follow a space. If someone sends us a kernel path 8475 * that includes a space, they deserve to be broken. 8476 */ 8477 opt_ptr = strchr(opt, ' '); 8478 if (opt_ptr != NULL) { 8479 *opt_ptr = '\0'; 8480 } 8481 8482 path = expand_path(opt); 8483 if (path != NULL) { 8484 (void) strlcpy(kernbuf, path, sizeof (kernbuf)); 8485 free(path); 8486 8487 /* 8488 * If there were options given, use those. 8489 * Otherwise, copy over the default options. 8490 */ 8491 if (opt_ptr != NULL) { 8492 /* Restore the space in opt string */ 8493 *opt_ptr = ' '; 8494 (void) strlcat(kernbuf, opt_ptr, 8495 sizeof (kernbuf)); 8496 } else { 8497 ret = get_kernel(mp, ARGS_CMD, args_buf, 8498 sizeof (args_buf)); 8499 INJECT_ERROR1("UPDATE_TEMP_PARTIAL_ARGS", 8500 ret = BAM_ERROR); 8501 if (ret != BAM_SUCCESS) { 8502 free(fstype); 8503 bam_error(REBOOT_GET_ARGS_FAILED); 8504 return (BAM_ERROR); 8505 } 8506 8507 if (args_buf[0] != '\0') { 8508 (void) strlcat(kernbuf, " ", 8509 sizeof (kernbuf)); 8510 (void) strlcat(kernbuf, 8511 args_buf, sizeof (kernbuf)); 8512 } 8513 } 8514 BAM_DPRINTF((D_REBOOT_RESOLVED_PARTIAL, fcn, kernbuf)); 8515 } else { 8516 free(fstype); 8517 bam_error(UNKNOWN_KERNEL, opt); 8518 bam_print_stderr(UNKNOWN_KERNEL_REBOOT); 8519 return (BAM_ERROR); 8520 } 8521 } 8522 free(fstype); 8523 entry = add_boot_entry(mp, REBOOT_TITLE, signbuf, kernbuf, 8524 NULL, NULL, NULL); 8525 INJECT_ERROR1("REBOOT_ADD_BOOT_ENTRY", entry = BAM_ERROR); 8526 if (entry == BAM_ERROR) { 8527 bam_error(REBOOT_WITH_ARGS_ADD_ENTRY_FAILED); 8528 return (BAM_ERROR); 8529 } 8530 8531 save_default_entry(mp, BAM_OLDDEF); 8532 ret = set_global(mp, menu_cmds[DEFAULT_CMD], entry); 8533 INJECT_ERROR1("REBOOT_SET_GLOBAL", ret = BAM_ERROR); 8534 if (ret == BAM_ERROR) { 8535 bam_error(REBOOT_SET_DEFAULT_FAILED, entry); 8536 } 8537 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 8538 return (BAM_WRITE); 8539 } 8540 8541 error_t 8542 set_global(menu_t *mp, char *globalcmd, int val) 8543 { 8544 line_t *lp; 8545 line_t *found; 8546 line_t *last; 8547 char *cp; 8548 char *str; 8549 char prefix[BAM_MAXLINE]; 8550 size_t len; 8551 const char *fcn = "set_global()"; 8552 8553 assert(mp); 8554 assert(globalcmd); 8555 8556 if (strcmp(globalcmd, menu_cmds[DEFAULT_CMD]) == 0) { 8557 INJECT_ERROR1("SET_GLOBAL_VAL_NEG", val = -1); 8558 INJECT_ERROR1("SET_GLOBAL_MENU_EMPTY", mp->end = NULL); 8559 INJECT_ERROR1("SET_GLOBAL_VAL_TOO_BIG", val = 100); 8560 if (val < 0 || mp->end == NULL || val > mp->end->entryNum) { 8561 (void) snprintf(prefix, sizeof (prefix), "%d", val); 8562 bam_error(INVALID_ENTRY, prefix); 8563 return (BAM_ERROR); 8564 } 8565 } 8566 8567 found = last = NULL; 8568 for (lp = mp->start; lp; lp = lp->next) { 8569 if (lp->flags != BAM_GLOBAL) 8570 continue; 8571 8572 last = lp; /* track the last global found */ 8573 8574 INJECT_ERROR1("SET_GLOBAL_NULL_CMD", lp->cmd = NULL); 8575 if (lp->cmd == NULL) { 8576 bam_error(NO_CMD, lp->lineNum); 8577 continue; 8578 } 8579 if (strcmp(globalcmd, lp->cmd) != 0) 8580 continue; 8581 8582 BAM_DPRINTF((D_FOUND_GLOBAL, fcn, globalcmd)); 8583 8584 if (found) { 8585 bam_error(DUP_CMD, globalcmd, lp->lineNum, bam_root); 8586 } 8587 found = lp; 8588 } 8589 8590 if (found == NULL) { 8591 lp = s_calloc(1, sizeof (line_t)); 8592 if (last == NULL) { 8593 lp->next = mp->start; 8594 mp->start = lp; 8595 mp->end = (mp->end) ? mp->end : lp; 8596 } else { 8597 lp->next = last->next; 8598 last->next = lp; 8599 if (lp->next == NULL) 8600 mp->end = lp; 8601 } 8602 lp->flags = BAM_GLOBAL; /* other fields not needed for writes */ 8603 len = strlen(globalcmd) + strlen(menu_cmds[SEP_CMD]); 8604 len += 10; /* val < 10 digits */ 8605 lp->line = s_calloc(1, len); 8606 (void) snprintf(lp->line, len, "%s%s%d", 8607 globalcmd, menu_cmds[SEP_CMD], val); 8608 BAM_DPRINTF((D_SET_GLOBAL_WROTE_NEW, fcn, lp->line)); 8609 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 8610 return (BAM_WRITE); 8611 } 8612 8613 /* 8614 * We are changing an existing entry. Retain any prefix whitespace, 8615 * but overwrite everything else. This preserves tabs added for 8616 * readability. 8617 */ 8618 str = found->line; 8619 cp = prefix; 8620 while (*str == ' ' || *str == '\t') 8621 *(cp++) = *(str++); 8622 *cp = '\0'; /* Terminate prefix */ 8623 len = strlen(prefix) + strlen(globalcmd); 8624 len += strlen(menu_cmds[SEP_CMD]) + 10; 8625 8626 free(found->line); 8627 found->line = s_calloc(1, len); 8628 (void) snprintf(found->line, len, 8629 "%s%s%s%d", prefix, globalcmd, menu_cmds[SEP_CMD], val); 8630 8631 BAM_DPRINTF((D_SET_GLOBAL_REPLACED, fcn, found->line)); 8632 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 8633 return (BAM_WRITE); /* need a write to menu */ 8634 } 8635 8636 /* 8637 * partial_path may be anything like "kernel/unix" or "kmdb". Try to 8638 * expand it to a full unix path. The calling function is expected to 8639 * output a message if an error occurs and NULL is returned. 8640 */ 8641 static char * 8642 expand_path(const char *partial_path) 8643 { 8644 int new_path_len; 8645 char *new_path; 8646 char new_path2[PATH_MAX]; 8647 struct stat sb; 8648 const char *fcn = "expand_path()"; 8649 8650 new_path_len = strlen(partial_path) + 64; 8651 new_path = s_calloc(1, new_path_len); 8652 8653 /* First, try the simplest case - something like "kernel/unix" */ 8654 (void) snprintf(new_path, new_path_len, "/platform/i86pc/%s", 8655 partial_path); 8656 if (stat(new_path, &sb) == 0) { 8657 BAM_DPRINTF((D_EXPAND_PATH, fcn, new_path)); 8658 return (new_path); 8659 } 8660 8661 if (strcmp(partial_path, "kmdb") == 0) { 8662 (void) snprintf(new_path, new_path_len, "%s -k", 8663 DIRECT_BOOT_KERNEL); 8664 BAM_DPRINTF((D_EXPAND_PATH, fcn, new_path)); 8665 return (new_path); 8666 } 8667 8668 /* 8669 * We've quickly reached unsupported usage. Try once more to 8670 * see if we were just given a glom name. 8671 */ 8672 (void) snprintf(new_path, new_path_len, "/platform/i86pc/%s/unix", 8673 partial_path); 8674 (void) snprintf(new_path2, PATH_MAX, "/platform/i86pc/%s/amd64/unix", 8675 partial_path); 8676 if (stat(new_path, &sb) == 0) { 8677 if (stat(new_path2, &sb) == 0) { 8678 /* 8679 * We matched both, so we actually 8680 * want to write the $ISADIR version. 8681 */ 8682 (void) snprintf(new_path, new_path_len, 8683 "/platform/i86pc/kernel/%s/$ISADIR/unix", 8684 partial_path); 8685 } 8686 BAM_DPRINTF((D_EXPAND_PATH, fcn, new_path)); 8687 return (new_path); 8688 } 8689 8690 free(new_path); 8691 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 8692 return (NULL); 8693 } 8694 8695 /* 8696 * The kernel cmd and arg have been changed, so 8697 * check whether the archive line needs to change. 8698 */ 8699 static void 8700 set_archive_line(entry_t *entryp, line_t *kernelp) 8701 { 8702 line_t *lp = entryp->start; 8703 char *new_archive; 8704 menu_cmd_t m_cmd; 8705 const char *fcn = "set_archive_line()"; 8706 8707 for (; lp != NULL; lp = lp->next) { 8708 if (lp->cmd != NULL && strncmp(lp->cmd, menu_cmds[MODULE_CMD], 8709 sizeof (menu_cmds[MODULE_CMD]) - 1) == 0) { 8710 break; 8711 } 8712 8713 INJECT_ERROR1("SET_ARCHIVE_LINE_END_ENTRY", lp = entryp->end); 8714 if (lp == entryp->end) { 8715 BAM_DPRINTF((D_ARCHIVE_LINE_NONE, fcn, 8716 entryp->entryNum)); 8717 return; 8718 } 8719 } 8720 INJECT_ERROR1("SET_ARCHIVE_LINE_END_MENU", lp = NULL); 8721 if (lp == NULL) { 8722 BAM_DPRINTF((D_ARCHIVE_LINE_NONE, fcn, entryp->entryNum)); 8723 return; 8724 } 8725 8726 if (strstr(kernelp->arg, "$ISADIR") != NULL) { 8727 new_archive = DIRECT_BOOT_ARCHIVE; 8728 m_cmd = MODULE_DOLLAR_CMD; 8729 } else if (strstr(kernelp->arg, "amd64") != NULL) { 8730 new_archive = DIRECT_BOOT_ARCHIVE_64; 8731 m_cmd = MODULE_CMD; 8732 } else { 8733 new_archive = DIRECT_BOOT_ARCHIVE_32; 8734 m_cmd = MODULE_CMD; 8735 } 8736 8737 if (strcmp(lp->arg, new_archive) == 0) { 8738 BAM_DPRINTF((D_ARCHIVE_LINE_NOCHANGE, fcn, lp->arg)); 8739 return; 8740 } 8741 8742 if (lp->cmd != NULL && strcmp(lp->cmd, menu_cmds[m_cmd]) != 0) { 8743 free(lp->cmd); 8744 lp->cmd = s_strdup(menu_cmds[m_cmd]); 8745 } 8746 8747 free(lp->arg); 8748 lp->arg = s_strdup(new_archive); 8749 update_line(lp); 8750 BAM_DPRINTF((D_ARCHIVE_LINE_REPLACED, fcn, lp->line)); 8751 } 8752 8753 /* 8754 * Title for an entry to set properties that once went in bootenv.rc. 8755 */ 8756 #define BOOTENV_RC_TITLE "Solaris bootenv rc" 8757 8758 /* 8759 * If path is NULL, return the kernel (optnum == KERNEL_CMD) or arguments 8760 * (optnum == ARGS_CMD) in the argument buf. If path is a zero-length 8761 * string, reset the value to the default. If path is a non-zero-length 8762 * string, set the kernel or arguments. 8763 */ 8764 static error_t 8765 get_set_kernel( 8766 menu_t *mp, 8767 menu_cmd_t optnum, 8768 char *path, 8769 char *buf, 8770 size_t bufsize) 8771 { 8772 int entryNum; 8773 int rv = BAM_SUCCESS; 8774 int free_new_path = 0; 8775 entry_t *entryp; 8776 line_t *ptr; 8777 line_t *kernelp; 8778 char *new_arg; 8779 char *old_args; 8780 char *space; 8781 char *new_path; 8782 char old_space; 8783 size_t old_kernel_len; 8784 size_t new_str_len; 8785 char *fstype; 8786 char *osdev; 8787 char *sign; 8788 char signbuf[PATH_MAX]; 8789 int ret; 8790 const char *fcn = "get_set_kernel()"; 8791 8792 assert(bufsize > 0); 8793 8794 ptr = kernelp = NULL; 8795 new_arg = old_args = space = NULL; 8796 new_path = NULL; 8797 buf[0] = '\0'; 8798 8799 INJECT_ERROR1("GET_SET_KERNEL_NOT_DBOOT", 8800 bam_direct = BAM_DIRECT_MULTIBOOT); 8801 if (bam_direct != BAM_DIRECT_DBOOT) { 8802 bam_error(NOT_DBOOT, optnum == KERNEL_CMD ? "kernel" : "args"); 8803 return (BAM_ERROR); 8804 } 8805 8806 /* 8807 * If a user changed the default entry to a non-bootadm controlled 8808 * one, we don't want to mess with it. Just print an error and 8809 * return. 8810 */ 8811 if (mp->curdefault) { 8812 entryNum = s_strtol(mp->curdefault->arg); 8813 for (entryp = mp->entries; entryp; entryp = entryp->next) { 8814 if (entryp->entryNum == entryNum) 8815 break; 8816 } 8817 if ((entryp != NULL) && 8818 ((entryp->flags & (BAM_ENTRY_BOOTADM|BAM_ENTRY_LU)) == 0)) { 8819 bam_error(DEFAULT_NOT_BAM); 8820 return (BAM_ERROR); 8821 } 8822 } 8823 8824 entryp = find_boot_entry(mp, BOOTENV_RC_TITLE, NULL, NULL, NULL, NULL, 8825 0, &entryNum); 8826 8827 if (entryp != NULL) { 8828 for (ptr = entryp->start; ptr && ptr != entryp->end; 8829 ptr = ptr->next) { 8830 if (strncmp(ptr->cmd, menu_cmds[KERNEL_CMD], 8831 sizeof (menu_cmds[KERNEL_CMD]) - 1) == 0) { 8832 kernelp = ptr; 8833 break; 8834 } 8835 } 8836 if (kernelp == NULL) { 8837 bam_error(NO_KERNEL, entryNum); 8838 return (BAM_ERROR); 8839 } 8840 8841 old_kernel_len = strcspn(kernelp->arg, " \t"); 8842 space = old_args = kernelp->arg + old_kernel_len; 8843 while ((*old_args == ' ') || (*old_args == '\t')) 8844 old_args++; 8845 } 8846 8847 if (path == NULL) { 8848 if (entryp == NULL) { 8849 BAM_DPRINTF((D_GET_SET_KERNEL_NO_RC, fcn)); 8850 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 8851 return (BAM_SUCCESS); 8852 } 8853 assert(kernelp); 8854 if (optnum == ARGS_CMD) { 8855 if (old_args[0] != '\0') { 8856 (void) strlcpy(buf, old_args, bufsize); 8857 BAM_DPRINTF((D_GET_SET_KERNEL_ARGS, fcn, buf)); 8858 } 8859 } else { 8860 /* 8861 * We need to print the kernel, so we just turn the 8862 * first space into a '\0' and print the beginning. 8863 * We don't print anything if it's the default kernel. 8864 */ 8865 old_space = *space; 8866 *space = '\0'; 8867 if (strcmp(kernelp->arg, DIRECT_BOOT_KERNEL) != 0) { 8868 (void) strlcpy(buf, kernelp->arg, bufsize); 8869 BAM_DPRINTF((D_GET_SET_KERNEL_KERN, fcn, buf)); 8870 } 8871 *space = old_space; 8872 } 8873 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 8874 return (BAM_SUCCESS); 8875 } 8876 8877 /* 8878 * First, check if we're resetting an entry to the default. 8879 */ 8880 if ((path[0] == '\0') || 8881 ((optnum == KERNEL_CMD) && 8882 (strcmp(path, DIRECT_BOOT_KERNEL) == 0))) { 8883 if ((entryp == NULL) || (kernelp == NULL)) { 8884 /* No previous entry, it's already the default */ 8885 BAM_DPRINTF((D_GET_SET_KERNEL_ALREADY, fcn)); 8886 return (BAM_SUCCESS); 8887 } 8888 8889 /* 8890 * Check if we can delete the entry. If we're resetting the 8891 * kernel command, and the args is already empty, or if we're 8892 * resetting the args command, and the kernel is already the 8893 * default, we can restore the old default and delete the entry. 8894 */ 8895 if (((optnum == KERNEL_CMD) && 8896 ((old_args == NULL) || (old_args[0] == '\0'))) || 8897 ((optnum == ARGS_CMD) && 8898 (strncmp(kernelp->arg, DIRECT_BOOT_KERNEL, 8899 sizeof (DIRECT_BOOT_KERNEL) - 1) == 0))) { 8900 kernelp = NULL; 8901 (void) delete_boot_entry(mp, entryNum, DBE_PRINTERR); 8902 restore_default_entry(mp, BAM_OLD_RC_DEF, 8903 mp->old_rc_default); 8904 mp->old_rc_default = NULL; 8905 rv = BAM_WRITE; 8906 BAM_DPRINTF((D_GET_SET_KERNEL_RESTORE_DEFAULT, fcn)); 8907 goto done; 8908 } 8909 8910 if (optnum == KERNEL_CMD) { 8911 /* 8912 * At this point, we've already checked that old_args 8913 * and entryp are valid pointers. The "+ 2" is for 8914 * a space a the string termination character. 8915 */ 8916 new_str_len = (sizeof (DIRECT_BOOT_KERNEL) - 1) + 8917 strlen(old_args) + 2; 8918 new_arg = s_calloc(1, new_str_len); 8919 (void) snprintf(new_arg, new_str_len, "%s %s", 8920 DIRECT_BOOT_KERNEL, old_args); 8921 free(kernelp->arg); 8922 kernelp->arg = new_arg; 8923 8924 /* 8925 * We have changed the kernel line, so we may need 8926 * to update the archive line as well. 8927 */ 8928 set_archive_line(entryp, kernelp); 8929 BAM_DPRINTF((D_GET_SET_KERNEL_RESET_KERNEL_SET_ARG, 8930 fcn, kernelp->arg)); 8931 } else { 8932 /* 8933 * We're resetting the boot args to nothing, so 8934 * we only need to copy the kernel. We've already 8935 * checked that the kernel is not the default. 8936 */ 8937 new_arg = s_calloc(1, old_kernel_len + 1); 8938 (void) snprintf(new_arg, old_kernel_len + 1, "%s", 8939 kernelp->arg); 8940 free(kernelp->arg); 8941 kernelp->arg = new_arg; 8942 BAM_DPRINTF((D_GET_SET_KERNEL_RESET_ARG_SET_KERNEL, 8943 fcn, kernelp->arg)); 8944 } 8945 rv = BAM_WRITE; 8946 goto done; 8947 } 8948 8949 /* 8950 * Expand the kernel file to a full path, if necessary 8951 */ 8952 if ((optnum == KERNEL_CMD) && (path[0] != '/')) { 8953 new_path = expand_path(path); 8954 if (new_path == NULL) { 8955 bam_error(UNKNOWN_KERNEL, path); 8956 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 8957 return (BAM_ERROR); 8958 } 8959 free_new_path = 1; 8960 } else { 8961 new_path = path; 8962 free_new_path = 0; 8963 } 8964 8965 /* 8966 * At this point, we know we're setting a new value. First, take care 8967 * of the case where there was no previous entry. 8968 */ 8969 if (entryp == NULL) { 8970 8971 /* Similar to code in update_temp */ 8972 fstype = get_fstype("/"); 8973 INJECT_ERROR1("GET_SET_KERNEL_FSTYPE", fstype = NULL); 8974 if (fstype == NULL) { 8975 bam_error(BOOTENV_FSTYPE_FAILED); 8976 rv = BAM_ERROR; 8977 goto done; 8978 } 8979 8980 osdev = get_special("/"); 8981 INJECT_ERROR1("GET_SET_KERNEL_SPECIAL", osdev = NULL); 8982 if (osdev == NULL) { 8983 free(fstype); 8984 bam_error(BOOTENV_SPECIAL_FAILED); 8985 rv = BAM_ERROR; 8986 goto done; 8987 } 8988 8989 sign = find_existing_sign("/", osdev, fstype); 8990 INJECT_ERROR1("GET_SET_KERNEL_SIGN", sign = NULL); 8991 if (sign == NULL) { 8992 free(fstype); 8993 free(osdev); 8994 bam_error(BOOTENV_SIGN_FAILED); 8995 rv = BAM_ERROR; 8996 goto done; 8997 } 8998 8999 free(osdev); 9000 (void) strlcpy(signbuf, sign, sizeof (signbuf)); 9001 free(sign); 9002 assert(strchr(signbuf, '(') == NULL && 9003 strchr(signbuf, ',') == NULL && 9004 strchr(signbuf, ')') == NULL); 9005 9006 if (optnum == KERNEL_CMD) { 9007 if (strcmp(fstype, "zfs") == 0) { 9008 new_str_len = strlen(new_path) + 9009 strlen(ZFS_BOOT) + 8; 9010 new_arg = s_calloc(1, new_str_len); 9011 (void) snprintf(new_arg, new_str_len, "%s %s", 9012 new_path, ZFS_BOOT); 9013 BAM_DPRINTF((D_GET_SET_KERNEL_NEW_KERN, fcn, 9014 new_arg)); 9015 entryNum = add_boot_entry(mp, BOOTENV_RC_TITLE, 9016 signbuf, new_arg, NULL, NULL, NULL); 9017 free(new_arg); 9018 } else { 9019 BAM_DPRINTF((D_GET_SET_KERNEL_NEW_KERN, fcn, 9020 new_path)); 9021 entryNum = add_boot_entry(mp, BOOTENV_RC_TITLE, 9022 signbuf, new_path, NULL, NULL, NULL); 9023 } 9024 } else { 9025 new_str_len = strlen(path) + 8; 9026 if (strcmp(fstype, "zfs") == 0) { 9027 new_str_len += strlen(DIRECT_BOOT_KERNEL_ZFS); 9028 new_arg = s_calloc(1, new_str_len); 9029 (void) snprintf(new_arg, new_str_len, "%s %s", 9030 DIRECT_BOOT_KERNEL_ZFS, path); 9031 } else { 9032 new_str_len += strlen(DIRECT_BOOT_KERNEL); 9033 new_arg = s_calloc(1, new_str_len); 9034 (void) snprintf(new_arg, new_str_len, "%s %s", 9035 DIRECT_BOOT_KERNEL, path); 9036 } 9037 9038 BAM_DPRINTF((D_GET_SET_KERNEL_NEW_ARG, fcn, new_arg)); 9039 entryNum = add_boot_entry(mp, BOOTENV_RC_TITLE, 9040 signbuf, new_arg, NULL, DIRECT_BOOT_ARCHIVE, NULL); 9041 free(new_arg); 9042 } 9043 free(fstype); 9044 INJECT_ERROR1("GET_SET_KERNEL_ADD_BOOT_ENTRY", 9045 entryNum = BAM_ERROR); 9046 if (entryNum == BAM_ERROR) { 9047 bam_error(GET_SET_KERNEL_ADD_BOOT_ENTRY, 9048 BOOTENV_RC_TITLE); 9049 rv = BAM_ERROR; 9050 goto done; 9051 } 9052 save_default_entry(mp, BAM_OLD_RC_DEF); 9053 ret = set_global(mp, menu_cmds[DEFAULT_CMD], entryNum); 9054 INJECT_ERROR1("GET_SET_KERNEL_SET_GLOBAL", ret = BAM_ERROR); 9055 if (ret == BAM_ERROR) { 9056 bam_error(GET_SET_KERNEL_SET_GLOBAL, entryNum); 9057 } 9058 rv = BAM_WRITE; 9059 goto done; 9060 } 9061 9062 /* 9063 * There was already an bootenv entry which we need to edit. 9064 */ 9065 if (optnum == KERNEL_CMD) { 9066 new_str_len = strlen(new_path) + strlen(old_args) + 2; 9067 new_arg = s_calloc(1, new_str_len); 9068 (void) snprintf(new_arg, new_str_len, "%s %s", new_path, 9069 old_args); 9070 free(kernelp->arg); 9071 kernelp->arg = new_arg; 9072 9073 /* 9074 * If we have changed the kernel line, we may need to update 9075 * the archive line as well. 9076 */ 9077 set_archive_line(entryp, kernelp); 9078 BAM_DPRINTF((D_GET_SET_KERNEL_REPLACED_KERNEL_SAME_ARG, fcn, 9079 kernelp->arg)); 9080 } else { 9081 new_str_len = old_kernel_len + strlen(path) + 8; 9082 new_arg = s_calloc(1, new_str_len); 9083 (void) strncpy(new_arg, kernelp->arg, old_kernel_len); 9084 (void) strlcat(new_arg, " ", new_str_len); 9085 (void) strlcat(new_arg, path, new_str_len); 9086 free(kernelp->arg); 9087 kernelp->arg = new_arg; 9088 BAM_DPRINTF((D_GET_SET_KERNEL_SAME_KERNEL_REPLACED_ARG, fcn, 9089 kernelp->arg)); 9090 } 9091 rv = BAM_WRITE; 9092 9093 done: 9094 if ((rv == BAM_WRITE) && kernelp) 9095 update_line(kernelp); 9096 if (free_new_path) 9097 free(new_path); 9098 if (rv == BAM_WRITE) { 9099 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 9100 } else { 9101 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 9102 } 9103 return (rv); 9104 } 9105 9106 static error_t 9107 get_kernel(menu_t *mp, menu_cmd_t optnum, char *buf, size_t bufsize) 9108 { 9109 const char *fcn = "get_kernel()"; 9110 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, menu_cmds[optnum])); 9111 return (get_set_kernel(mp, optnum, NULL, buf, bufsize)); 9112 } 9113 9114 static error_t 9115 set_kernel(menu_t *mp, menu_cmd_t optnum, char *path, char *buf, size_t bufsize) 9116 { 9117 const char *fcn = "set_kernel()"; 9118 assert(path != NULL); 9119 BAM_DPRINTF((D_FUNC_ENTRY2, fcn, menu_cmds[optnum], path)); 9120 return (get_set_kernel(mp, optnum, path, buf, bufsize)); 9121 } 9122 9123 /*ARGSUSED*/ 9124 static error_t 9125 set_option(menu_t *mp, char *dummy, char *opt) 9126 { 9127 int optnum; 9128 int optval; 9129 char *val; 9130 char buf[BUFSIZ] = ""; 9131 error_t rv; 9132 const char *fcn = "set_option()"; 9133 9134 assert(mp); 9135 assert(opt); 9136 assert(dummy == NULL); 9137 9138 /* opt is set from bam_argv[0] and is always non-NULL */ 9139 BAM_DPRINTF((D_FUNC_ENTRY1, fcn, opt)); 9140 9141 val = strchr(opt, '='); 9142 if (val != NULL) { 9143 *val = '\0'; 9144 } 9145 9146 if (strcmp(opt, "default") == 0) { 9147 optnum = DEFAULT_CMD; 9148 } else if (strcmp(opt, "timeout") == 0) { 9149 optnum = TIMEOUT_CMD; 9150 } else if (strcmp(opt, menu_cmds[KERNEL_CMD]) == 0) { 9151 optnum = KERNEL_CMD; 9152 } else if (strcmp(opt, menu_cmds[ARGS_CMD]) == 0) { 9153 optnum = ARGS_CMD; 9154 } else { 9155 bam_error(INVALID_OPTION, opt); 9156 return (BAM_ERROR); 9157 } 9158 9159 /* 9160 * kernel and args are allowed without "=new_value" strings. All 9161 * others cause errors 9162 */ 9163 if ((val == NULL) && (optnum != KERNEL_CMD) && (optnum != ARGS_CMD)) { 9164 bam_error(NO_OPTION_ARG, opt); 9165 return (BAM_ERROR); 9166 } else if (val != NULL) { 9167 *val = '='; 9168 } 9169 9170 if ((optnum == KERNEL_CMD) || (optnum == ARGS_CMD)) { 9171 BAM_DPRINTF((D_SET_OPTION, fcn, menu_cmds[optnum], 9172 val ? val + 1 : "NULL")); 9173 9174 if (val) 9175 rv = set_kernel(mp, optnum, val + 1, buf, sizeof (buf)); 9176 else 9177 rv = get_kernel(mp, optnum, buf, sizeof (buf)); 9178 if ((rv == BAM_SUCCESS) && (buf[0] != '\0')) 9179 (void) printf("%s\n", buf); 9180 } else { 9181 optval = s_strtol(val + 1); 9182 BAM_DPRINTF((D_SET_OPTION, fcn, menu_cmds[optnum], val + 1)); 9183 rv = set_global(mp, menu_cmds[optnum], optval); 9184 } 9185 9186 if (rv == BAM_WRITE || rv == BAM_SUCCESS) { 9187 BAM_DPRINTF((D_RETURN_SUCCESS, fcn)); 9188 } else { 9189 BAM_DPRINTF((D_RETURN_FAILURE, fcn)); 9190 } 9191 9192 return (rv); 9193 } 9194 9195 /* 9196 * The quiet argument suppresses messages. This is used 9197 * when invoked in the context of other commands (e.g. list_entry) 9198 */ 9199 static error_t 9200 read_globals(menu_t *mp, char *menu_path, char *globalcmd, int quiet) 9201 { 9202 line_t *lp; 9203 char *arg; 9204 int done, ret = BAM_SUCCESS; 9205 9206 assert(mp); 9207 assert(menu_path); 9208 assert(globalcmd); 9209 9210 if (mp->start == NULL) { 9211 if (!quiet) 9212 bam_error(NO_MENU, menu_path); 9213 return (BAM_ERROR); 9214 } 9215 9216 done = 0; 9217 for (lp = mp->start; lp; lp = lp->next) { 9218 if (lp->flags != BAM_GLOBAL) 9219 continue; 9220 9221 if (lp->cmd == NULL) { 9222 if (!quiet) 9223 bam_error(NO_CMD, lp->lineNum); 9224 continue; 9225 } 9226 9227 if (strcmp(globalcmd, lp->cmd) != 0) 9228 continue; 9229 9230 /* Found global. Check for duplicates */ 9231 if (done && !quiet) { 9232 bam_error(DUP_CMD, globalcmd, lp->lineNum, bam_root); 9233 ret = BAM_ERROR; 9234 } 9235 9236 arg = lp->arg ? lp->arg : ""; 9237 bam_print(GLOBAL_CMD, globalcmd, arg); 9238 done = 1; 9239 } 9240 9241 if (!done && bam_verbose) 9242 bam_print(NO_ENTRY, globalcmd); 9243 9244 return (ret); 9245 } 9246 9247 static error_t 9248 menu_write(char *root, menu_t *mp) 9249 { 9250 const char *fcn = "menu_write()"; 9251 9252 BAM_DPRINTF((D_MENU_WRITE_ENTER, fcn, root)); 9253 return (list2file(root, MENU_TMP, GRUB_MENU, mp->start)); 9254 } 9255 9256 void 9257 line_free(line_t *lp) 9258 { 9259 if (lp == NULL) 9260 return; 9261 9262 if (lp->cmd != NULL) 9263 free(lp->cmd); 9264 if (lp->sep) 9265 free(lp->sep); 9266 if (lp->arg) 9267 free(lp->arg); 9268 if (lp->line) 9269 free(lp->line); 9270 free(lp); 9271 } 9272 9273 static void 9274 linelist_free(line_t *start) 9275 { 9276 line_t *lp; 9277 9278 while (start) { 9279 lp = start; 9280 start = start->next; 9281 line_free(lp); 9282 } 9283 } 9284 9285 static void 9286 filelist_free(filelist_t *flistp) 9287 { 9288 linelist_free(flistp->head); 9289 flistp->head = NULL; 9290 flistp->tail = NULL; 9291 } 9292 9293 static void 9294 menu_free(menu_t *mp) 9295 { 9296 entry_t *ent, *tmp; 9297 assert(mp); 9298 9299 if (mp->start) 9300 linelist_free(mp->start); 9301 ent = mp->entries; 9302 while (ent) { 9303 tmp = ent; 9304 ent = tmp->next; 9305 free(tmp); 9306 } 9307 9308 free(mp); 9309 } 9310 9311 /* 9312 * Utility routines 9313 */ 9314 9315 9316 /* 9317 * Returns 0 on success 9318 * Any other value indicates an error 9319 */ 9320 static int 9321 exec_cmd(char *cmdline, filelist_t *flistp) 9322 { 9323 char buf[BUFSIZ]; 9324 int ret; 9325 FILE *ptr; 9326 sigset_t set; 9327 void (*disp)(int); 9328 9329 /* 9330 * For security 9331 * - only absolute paths are allowed 9332 * - set IFS to space and tab 9333 */ 9334 if (*cmdline != '/') { 9335 bam_error(ABS_PATH_REQ, cmdline); 9336 return (-1); 9337 } 9338 (void) putenv("IFS= \t"); 9339 9340 /* 9341 * We may have been exec'ed with SIGCHLD blocked 9342 * unblock it here 9343 */ 9344 (void) sigemptyset(&set); 9345 (void) sigaddset(&set, SIGCHLD); 9346 if (sigprocmask(SIG_UNBLOCK, &set, NULL) != 0) { 9347 bam_error(CANT_UNBLOCK_SIGCHLD, strerror(errno)); 9348 return (-1); 9349 } 9350 9351 /* 9352 * Set SIGCHLD disposition to SIG_DFL for popen/pclose 9353 */ 9354 disp = sigset(SIGCHLD, SIG_DFL); 9355 if (disp == SIG_ERR) { 9356 bam_error(FAILED_SIG, strerror(errno)); 9357 return (-1); 9358 } 9359 if (disp == SIG_HOLD) { 9360 bam_error(BLOCKED_SIG, cmdline); 9361 return (-1); 9362 } 9363 9364 ptr = popen(cmdline, "r"); 9365 if (ptr == NULL) { 9366 bam_error(POPEN_FAIL, cmdline, strerror(errno)); 9367 return (-1); 9368 } 9369 9370 /* 9371 * If we simply do a pclose() following a popen(), pclose() 9372 * will close the reader end of the pipe immediately even 9373 * if the child process has not started/exited. pclose() 9374 * does wait for cmd to terminate before returning though. 9375 * When the executed command writes its output to the pipe 9376 * there is no reader process and the command dies with 9377 * SIGPIPE. To avoid this we read repeatedly until read 9378 * terminates with EOF. This indicates that the command 9379 * (writer) has closed the pipe and we can safely do a 9380 * pclose(). 9381 * 9382 * Since pclose() does wait for the command to exit, 9383 * we can safely reap the exit status of the command 9384 * from the value returned by pclose() 9385 */ 9386 while (s_fgets(buf, sizeof (buf), ptr) != NULL) { 9387 if (flistp == NULL) { 9388 /* s_fgets strips newlines, so insert them at the end */ 9389 bam_print(PRINT, buf); 9390 } else { 9391 append_to_flist(flistp, buf); 9392 } 9393 } 9394 9395 ret = pclose(ptr); 9396 if (ret == -1) { 9397 bam_error(PCLOSE_FAIL, cmdline, strerror(errno)); 9398 return (-1); 9399 } 9400 9401 if (WIFEXITED(ret)) { 9402 return (WEXITSTATUS(ret)); 9403 } else { 9404 bam_error(EXEC_FAIL, cmdline, ret); 9405 return (-1); 9406 } 9407 } 9408 9409 /* 9410 * Since this function returns -1 on error 9411 * it cannot be used to convert -1. However, 9412 * that is sufficient for what we need. 9413 */ 9414 static long 9415 s_strtol(char *str) 9416 { 9417 long l; 9418 char *res = NULL; 9419 9420 if (str == NULL) { 9421 return (-1); 9422 } 9423 9424 errno = 0; 9425 l = strtol(str, &res, 10); 9426 if (errno || *res != '\0') { 9427 return (-1); 9428 } 9429 9430 return (l); 9431 } 9432 9433 /* 9434 * Wrapper around fputs, that adds a newline (since fputs doesn't) 9435 */ 9436 static int 9437 s_fputs(char *str, FILE *fp) 9438 { 9439 char linebuf[BAM_MAXLINE]; 9440 9441 (void) snprintf(linebuf, sizeof (linebuf), "%s\n", str); 9442 return (fputs(linebuf, fp)); 9443 } 9444 9445 /* 9446 * Wrapper around fgets, that strips newlines returned by fgets 9447 */ 9448 char * 9449 s_fgets(char *buf, int buflen, FILE *fp) 9450 { 9451 int n; 9452 9453 buf = fgets(buf, buflen, fp); 9454 if (buf) { 9455 n = strlen(buf); 9456 if (n == buflen - 1 && buf[n-1] != '\n') 9457 bam_error(TOO_LONG, buflen - 1, buf); 9458 buf[n-1] = (buf[n-1] == '\n') ? '\0' : buf[n-1]; 9459 } 9460 9461 return (buf); 9462 } 9463 9464 void * 9465 s_calloc(size_t nelem, size_t sz) 9466 { 9467 void *ptr; 9468 9469 ptr = calloc(nelem, sz); 9470 if (ptr == NULL) { 9471 bam_error(NO_MEM, nelem*sz); 9472 bam_exit(1); 9473 } 9474 return (ptr); 9475 } 9476 9477 void * 9478 s_realloc(void *ptr, size_t sz) 9479 { 9480 ptr = realloc(ptr, sz); 9481 if (ptr == NULL) { 9482 bam_error(NO_MEM, sz); 9483 bam_exit(1); 9484 } 9485 return (ptr); 9486 } 9487 9488 char * 9489 s_strdup(char *str) 9490 { 9491 char *ptr; 9492 9493 if (str == NULL) 9494 return (NULL); 9495 9496 ptr = strdup(str); 9497 if (ptr == NULL) { 9498 bam_error(NO_MEM, strlen(str) + 1); 9499 bam_exit(1); 9500 } 9501 return (ptr); 9502 } 9503 9504 /* 9505 * Returns 1 if amd64 (or sparc, for syncing x86 diskless clients) 9506 * Returns 0 otherwise 9507 */ 9508 static int 9509 is_amd64(void) 9510 { 9511 static int amd64 = -1; 9512 char isabuf[257]; /* from sysinfo(2) manpage */ 9513 9514 if (amd64 != -1) 9515 return (amd64); 9516 9517 if (bam_alt_platform) { 9518 if (strcmp(bam_platform, "i86pc") == 0) { 9519 amd64 = 1; /* diskless server */ 9520 } 9521 } else { 9522 if (sysinfo(SI_ISALIST, isabuf, sizeof (isabuf)) > 0 && 9523 strncmp(isabuf, "amd64 ", strlen("amd64 ")) == 0) { 9524 amd64 = 1; 9525 } else if (strstr(isabuf, "i386") == NULL) { 9526 amd64 = 1; /* diskless server */ 9527 } 9528 } 9529 if (amd64 == -1) 9530 amd64 = 0; 9531 9532 return (amd64); 9533 } 9534 9535 static char * 9536 get_machine(void) 9537 { 9538 static int cached = -1; 9539 static char mbuf[257]; /* from sysinfo(2) manpage */ 9540 9541 if (cached == 0) 9542 return (mbuf); 9543 9544 if (bam_alt_platform) { 9545 return (bam_platform); 9546 } else { 9547 if (sysinfo(SI_MACHINE, mbuf, sizeof (mbuf)) > 0) { 9548 cached = 1; 9549 } 9550 } 9551 if (cached == -1) { 9552 mbuf[0] = '\0'; 9553 cached = 0; 9554 } 9555 9556 return (mbuf); 9557 } 9558 9559 int 9560 is_sparc(void) 9561 { 9562 static int issparc = -1; 9563 char mbuf[257]; /* from sysinfo(2) manpage */ 9564 9565 if (issparc != -1) 9566 return (issparc); 9567 9568 if (bam_alt_platform) { 9569 if (strncmp(bam_platform, "sun4", 4) == 0) { 9570 issparc = 1; 9571 } 9572 } else { 9573 if (sysinfo(SI_ARCHITECTURE, mbuf, sizeof (mbuf)) > 0 && 9574 strcmp(mbuf, "sparc") == 0) { 9575 issparc = 1; 9576 } 9577 } 9578 if (issparc == -1) 9579 issparc = 0; 9580 9581 return (issparc); 9582 } 9583 9584 static void 9585 append_to_flist(filelist_t *flistp, char *s) 9586 { 9587 line_t *lp; 9588 9589 lp = s_calloc(1, sizeof (line_t)); 9590 lp->line = s_strdup(s); 9591 if (flistp->head == NULL) 9592 flistp->head = lp; 9593 else 9594 flistp->tail->next = lp; 9595 flistp->tail = lp; 9596 } 9597 9598 #if !defined(_OPB) 9599 9600 UCODE_VENDORS; 9601 9602 /*ARGSUSED*/ 9603 static void 9604 ucode_install(char *root) 9605 { 9606 int i; 9607 9608 for (i = 0; ucode_vendors[i].filestr != NULL; i++) { 9609 int cmd_len = PATH_MAX + 256; 9610 char cmd[PATH_MAX + 256]; 9611 char file[PATH_MAX]; 9612 char timestamp[PATH_MAX]; 9613 struct stat fstatus, tstatus; 9614 struct utimbuf u_times; 9615 9616 (void) snprintf(file, PATH_MAX, "%s/%s/%s-ucode.%s", 9617 bam_root, UCODE_INSTALL_PATH, ucode_vendors[i].filestr, 9618 ucode_vendors[i].extstr); 9619 9620 if (stat(file, &fstatus) != 0 || !(S_ISREG(fstatus.st_mode))) 9621 continue; 9622 9623 (void) snprintf(timestamp, PATH_MAX, "%s.ts", file); 9624 9625 if (stat(timestamp, &tstatus) == 0 && 9626 fstatus.st_mtime <= tstatus.st_mtime) 9627 continue; 9628 9629 (void) snprintf(cmd, cmd_len, "/usr/sbin/ucodeadm -i -R " 9630 "%s/%s/%s %s > /dev/null 2>&1", bam_root, 9631 UCODE_INSTALL_PATH, ucode_vendors[i].vendorstr, file); 9632 if (system(cmd) != 0) 9633 return; 9634 9635 if (creat(timestamp, S_IRUSR | S_IWUSR) == -1) 9636 return; 9637 9638 u_times.actime = fstatus.st_atime; 9639 u_times.modtime = fstatus.st_mtime; 9640 (void) utime(timestamp, &u_times); 9641 } 9642 } 9643 #endif 9644