mke2fs.c revision a6ce1349539f866334ef3d5758bc2ee44a454acd
1/* 2 * mke2fs.c - Make a ext2fs filesystem. 3 * 4 * Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 5 * 2003, 2004, 2005 by Theodore Ts'o. 6 * 7 * %Begin-Header% 8 * This file may be redistributed under the terms of the GNU Public 9 * License. 10 * %End-Header% 11 */ 12 13/* Usage: mke2fs [options] device 14 * 15 * The device may be a block device or a image of one, but this isn't 16 * enforced (but it's not much fun on a character device :-). 17 */ 18 19#define _XOPEN_SOURCE 600 /* for inclusion of PATH_MAX in Solaris */ 20 21#include <stdio.h> 22#include <string.h> 23#include <strings.h> 24#include <fcntl.h> 25#include <ctype.h> 26#include <time.h> 27#ifdef __linux__ 28#include <sys/utsname.h> 29#endif 30#ifdef HAVE_GETOPT_H 31#include <getopt.h> 32#else 33extern char *optarg; 34extern int optind; 35#endif 36#ifdef HAVE_UNISTD_H 37#include <unistd.h> 38#endif 39#ifdef HAVE_STDLIB_H 40#include <stdlib.h> 41#endif 42#ifdef HAVE_ERRNO_H 43#include <errno.h> 44#endif 45#ifdef HAVE_MNTENT_H 46#include <mntent.h> 47#endif 48#include <sys/ioctl.h> 49#include <sys/types.h> 50#include <sys/stat.h> 51#include <libgen.h> 52#include <limits.h> 53#include <blkid/blkid.h> 54 55#include "ext2fs/ext2_fs.h" 56#include "et/com_err.h" 57#include "uuid/uuid.h" 58#include "e2p/e2p.h" 59#include "ext2fs/ext2fs.h" 60#include "util.h" 61#include "profile.h" 62#include "prof_err.h" 63#include "../version.h" 64#include "nls-enable.h" 65 66#define STRIDE_LENGTH 8 67 68#ifndef __sparc__ 69#define ZAP_BOOTBLOCK 70#endif 71 72#ifndef ROOT_SYSCONFDIR 73#define ROOT_SYSCONFDIR "/etc" 74#endif 75 76extern int isatty(int); 77extern FILE *fpopen(const char *cmd, const char *mode); 78 79const char * program_name = "mke2fs"; 80const char * device_name /* = NULL */; 81 82/* Command line options */ 83int cflag; 84int verbose; 85int quiet; 86int super_only; 87int discard = 1; /* attempt to discard device before fs creation */ 88int force; 89int noaction; 90int journal_size; 91int journal_flags; 92int lazy_itable_init; 93char *bad_blocks_filename; 94__u32 fs_stride; 95 96struct ext2_super_block fs_param; 97char *fs_uuid = NULL; 98char *creator_os; 99char *volume_label; 100char *mount_dir; 101char *journal_device; 102int sync_kludge; /* Set using the MKE2FS_SYNC env. option */ 103char **fs_types; 104 105profile_t profile; 106 107int sys_page_size = 4096; 108int linux_version_code = 0; 109 110static void usage(void) 111{ 112 fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] " 113 "[-f fragment-size]\n\t[-i bytes-per-inode] [-I inode-size] " 114 "[-J journal-options]\n" 115 "\t[-G meta group size] [-N number-of-inodes]\n" 116 "\t[-m reserved-blocks-percentage] [-o creator-os]\n" 117 "\t[-g blocks-per-group] [-L volume-label] " 118 "[-M last-mounted-directory]\n\t[-O feature[,...]] " 119 "[-r fs-revision] [-E extended-option[,...]]\n" 120 "\t[-T fs-type] [-U UUID] [-jnqvFKSV] device [blocks-count]\n"), 121 program_name); 122 exit(1); 123} 124 125static int int_log2(int arg) 126{ 127 int l = 0; 128 129 arg >>= 1; 130 while (arg) { 131 l++; 132 arg >>= 1; 133 } 134 return l; 135} 136 137static int int_log10(unsigned int arg) 138{ 139 int l; 140 141 for (l=0; arg ; l++) 142 arg = arg / 10; 143 return l; 144} 145 146static int parse_version_number(const char *s) 147{ 148 int major, minor, rev; 149 char *endptr; 150 const char *cp = s; 151 152 if (!s) 153 return 0; 154 major = strtol(cp, &endptr, 10); 155 if (cp == endptr || *endptr != '.') 156 return 0; 157 cp = endptr + 1; 158 minor = strtol(cp, &endptr, 10); 159 if (cp == endptr || *endptr != '.') 160 return 0; 161 cp = endptr + 1; 162 rev = strtol(cp, &endptr, 10); 163 if (cp == endptr) 164 return 0; 165 return ((((major * 256) + minor) * 256) + rev); 166} 167 168/* 169 * Helper function for read_bb_file and test_disk 170 */ 171static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk) 172{ 173 fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk); 174 return; 175} 176 177/* 178 * Reads the bad blocks list from a file 179 */ 180static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list, 181 const char *bad_blocks_file) 182{ 183 FILE *f; 184 errcode_t retval; 185 186 f = fopen(bad_blocks_file, "r"); 187 if (!f) { 188 com_err("read_bad_blocks_file", errno, 189 _("while trying to open %s"), bad_blocks_file); 190 exit(1); 191 } 192 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block); 193 fclose (f); 194 if (retval) { 195 com_err("ext2fs_read_bb_FILE", retval, 196 _("while reading in list of bad blocks from file")); 197 exit(1); 198 } 199} 200 201/* 202 * Runs the badblocks program to test the disk 203 */ 204static void test_disk(ext2_filsys fs, badblocks_list *bb_list) 205{ 206 FILE *f; 207 errcode_t retval; 208 char buf[1024]; 209 210 sprintf(buf, "badblocks -b %d -X %s%s%s %u", fs->blocksize, 211 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "", 212 fs->device_name, fs->super->s_blocks_count-1); 213 if (verbose) 214 printf(_("Running command: %s\n"), buf); 215 f = popen(buf, "r"); 216 if (!f) { 217 com_err("popen", errno, 218 _("while trying to run '%s'"), buf); 219 exit(1); 220 } 221 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block); 222 pclose(f); 223 if (retval) { 224 com_err("ext2fs_read_bb_FILE", retval, 225 _("while processing list of bad blocks from program")); 226 exit(1); 227 } 228} 229 230static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list) 231{ 232 dgrp_t i; 233 blk_t j; 234 unsigned must_be_good; 235 blk_t blk; 236 badblocks_iterate bb_iter; 237 errcode_t retval; 238 blk_t group_block; 239 int group; 240 int group_bad; 241 242 if (!bb_list) 243 return; 244 245 /* 246 * The primary superblock and group descriptors *must* be 247 * good; if not, abort. 248 */ 249 must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks; 250 for (i = fs->super->s_first_data_block; i <= must_be_good; i++) { 251 if (ext2fs_badblocks_list_test(bb_list, i)) { 252 fprintf(stderr, _("Block %d in primary " 253 "superblock/group descriptor area bad.\n"), i); 254 fprintf(stderr, _("Blocks %u through %u must be good " 255 "in order to build a filesystem.\n"), 256 fs->super->s_first_data_block, must_be_good); 257 fputs(_("Aborting....\n"), stderr); 258 exit(1); 259 } 260 } 261 262 /* 263 * See if any of the bad blocks are showing up in the backup 264 * superblocks and/or group descriptors. If so, issue a 265 * warning and adjust the block counts appropriately. 266 */ 267 group_block = fs->super->s_first_data_block + 268 fs->super->s_blocks_per_group; 269 270 for (i = 1; i < fs->group_desc_count; i++) { 271 group_bad = 0; 272 for (j=0; j < fs->desc_blocks+1; j++) { 273 if (ext2fs_badblocks_list_test(bb_list, 274 group_block + j)) { 275 if (!group_bad) 276 fprintf(stderr, 277_("Warning: the backup superblock/group descriptors at block %u contain\n" 278" bad blocks.\n\n"), 279 group_block); 280 group_bad++; 281 group = ext2fs_group_of_blk(fs, group_block+j); 282 fs->group_desc[group].bg_free_blocks_count++; 283 ext2fs_group_desc_csum_set(fs, group); 284 fs->super->s_free_blocks_count++; 285 } 286 } 287 group_block += fs->super->s_blocks_per_group; 288 } 289 290 /* 291 * Mark all the bad blocks as used... 292 */ 293 retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter); 294 if (retval) { 295 com_err("ext2fs_badblocks_list_iterate_begin", retval, 296 _("while marking bad blocks as used")); 297 exit(1); 298 } 299 while (ext2fs_badblocks_list_iterate(bb_iter, &blk)) 300 ext2fs_mark_block_bitmap(fs->block_map, blk); 301 ext2fs_badblocks_list_iterate_end(bb_iter); 302} 303 304/* 305 * These functions implement a generalized progress meter. 306 */ 307struct progress_struct { 308 char format[20]; 309 char backup[80]; 310 __u32 max; 311 int skip_progress; 312}; 313 314static void progress_init(struct progress_struct *progress, 315 const char *label,__u32 max) 316{ 317 int i; 318 319 memset(progress, 0, sizeof(struct progress_struct)); 320 if (quiet) 321 return; 322 323 /* 324 * Figure out how many digits we need 325 */ 326 i = int_log10(max); 327 sprintf(progress->format, "%%%dd/%%%dld", i, i); 328 memset(progress->backup, '\b', sizeof(progress->backup)-1); 329 progress->backup[sizeof(progress->backup)-1] = 0; 330 if ((2*i)+1 < (int) sizeof(progress->backup)) 331 progress->backup[(2*i)+1] = 0; 332 progress->max = max; 333 334 progress->skip_progress = 0; 335 if (getenv("MKE2FS_SKIP_PROGRESS")) 336 progress->skip_progress++; 337 338 fputs(label, stdout); 339 fflush(stdout); 340} 341 342static void progress_update(struct progress_struct *progress, __u32 val) 343{ 344 if ((progress->format[0] == 0) || progress->skip_progress) 345 return; 346 printf(progress->format, val, progress->max); 347 fputs(progress->backup, stdout); 348} 349 350static void progress_close(struct progress_struct *progress) 351{ 352 if (progress->format[0] == 0) 353 return; 354 fputs(_("done \n"), stdout); 355} 356 357static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed) 358{ 359 errcode_t retval; 360 blk_t blk; 361 dgrp_t i; 362 int num, ipb; 363 struct progress_struct progress; 364 365 if (quiet) 366 memset(&progress, 0, sizeof(progress)); 367 else 368 progress_init(&progress, _("Writing inode tables: "), 369 fs->group_desc_count); 370 371 for (i = 0; i < fs->group_desc_count; i++) { 372 progress_update(&progress, i); 373 374 blk = fs->group_desc[i].bg_inode_table; 375 num = fs->inode_blocks_per_group; 376 377 if (lazy_flag) { 378 ipb = fs->blocksize / EXT2_INODE_SIZE(fs->super); 379 num = ((((fs->super->s_inodes_per_group - 380 fs->group_desc[i].bg_itable_unused) * 381 EXT2_INODE_SIZE(fs->super)) + 382 EXT2_BLOCK_SIZE(fs->super) - 1) / 383 EXT2_BLOCK_SIZE(fs->super)); 384 } 385 if (!lazy_flag || itable_zeroed) { 386 /* The kernel doesn't need to zero the itable blocks */ 387 fs->group_desc[i].bg_flags |= EXT2_BG_INODE_ZEROED; 388 ext2fs_group_desc_csum_set(fs, i); 389 } 390 retval = ext2fs_zero_blocks(fs, blk, num, &blk, &num); 391 if (retval) { 392 fprintf(stderr, _("\nCould not write %d " 393 "blocks in inode table starting at %u: %s\n"), 394 num, blk, error_message(retval)); 395 exit(1); 396 } 397 if (sync_kludge) { 398 if (sync_kludge == 1) 399 sync(); 400 else if ((i % sync_kludge) == 0) 401 sync(); 402 } 403 } 404 ext2fs_zero_blocks(0, 0, 0, 0, 0); 405 progress_close(&progress); 406} 407 408static void create_root_dir(ext2_filsys fs) 409{ 410 errcode_t retval; 411 struct ext2_inode inode; 412 __u32 uid, gid; 413 414 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0); 415 if (retval) { 416 com_err("ext2fs_mkdir", retval, _("while creating root dir")); 417 exit(1); 418 } 419 if (geteuid()) { 420 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode); 421 if (retval) { 422 com_err("ext2fs_read_inode", retval, 423 _("while reading root inode")); 424 exit(1); 425 } 426 uid = getuid(); 427 inode.i_uid = uid; 428 ext2fs_set_i_uid_high(inode, uid >> 16); 429 if (uid) { 430 gid = getgid(); 431 inode.i_gid = gid; 432 ext2fs_set_i_gid_high(inode, gid >> 16); 433 } 434 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode); 435 if (retval) { 436 com_err("ext2fs_write_inode", retval, 437 _("while setting root inode ownership")); 438 exit(1); 439 } 440 } 441} 442 443static void create_lost_and_found(ext2_filsys fs) 444{ 445 unsigned int lpf_size = 0; 446 errcode_t retval; 447 ext2_ino_t ino; 448 const char *name = "lost+found"; 449 int i; 450 451 fs->umask = 077; 452 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name); 453 if (retval) { 454 com_err("ext2fs_mkdir", retval, 455 _("while creating /lost+found")); 456 exit(1); 457 } 458 459 retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino); 460 if (retval) { 461 com_err("ext2_lookup", retval, 462 _("while looking up /lost+found")); 463 exit(1); 464 } 465 466 for (i=1; i < EXT2_NDIR_BLOCKS; i++) { 467 /* Ensure that lost+found is at least 2 blocks, so we always 468 * test large empty blocks for big-block filesystems. */ 469 if ((lpf_size += fs->blocksize) >= 16*1024 && 470 lpf_size >= 2 * fs->blocksize) 471 break; 472 retval = ext2fs_expand_dir(fs, ino); 473 if (retval) { 474 com_err("ext2fs_expand_dir", retval, 475 _("while expanding /lost+found")); 476 exit(1); 477 } 478 } 479} 480 481static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list) 482{ 483 errcode_t retval; 484 485 ext2fs_mark_inode_bitmap(fs->inode_map, EXT2_BAD_INO); 486 ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0); 487 retval = ext2fs_update_bb_inode(fs, bb_list); 488 if (retval) { 489 com_err("ext2fs_update_bb_inode", retval, 490 _("while setting bad block inode")); 491 exit(1); 492 } 493 494} 495 496static void reserve_inodes(ext2_filsys fs) 497{ 498 ext2_ino_t i; 499 500 for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++) 501 ext2fs_inode_alloc_stats2(fs, i, +1, 0); 502 ext2fs_mark_ib_dirty(fs); 503} 504 505#define BSD_DISKMAGIC (0x82564557UL) /* The disk magic number */ 506#define BSD_MAGICDISK (0x57455682UL) /* The disk magic number reversed */ 507#define BSD_LABEL_OFFSET 64 508 509static void zap_sector(ext2_filsys fs, int sect, int nsect) 510{ 511 char *buf; 512 int retval; 513 unsigned int *magic; 514 515 buf = malloc(512*nsect); 516 if (!buf) { 517 printf(_("Out of memory erasing sectors %d-%d\n"), 518 sect, sect + nsect - 1); 519 exit(1); 520 } 521 522 if (sect == 0) { 523 /* Check for a BSD disklabel, and don't erase it if so */ 524 retval = io_channel_read_blk(fs->io, 0, -512, buf); 525 if (retval) 526 fprintf(stderr, 527 _("Warning: could not read block 0: %s\n"), 528 error_message(retval)); 529 else { 530 magic = (unsigned int *) (buf + BSD_LABEL_OFFSET); 531 if ((*magic == BSD_DISKMAGIC) || 532 (*magic == BSD_MAGICDISK)) 533 return; 534 } 535 } 536 537 memset(buf, 0, 512*nsect); 538 io_channel_set_blksize(fs->io, 512); 539 retval = io_channel_write_blk(fs->io, sect, -512*nsect, buf); 540 io_channel_set_blksize(fs->io, fs->blocksize); 541 free(buf); 542 if (retval) 543 fprintf(stderr, _("Warning: could not erase sector %d: %s\n"), 544 sect, error_message(retval)); 545} 546 547static void create_journal_dev(ext2_filsys fs) 548{ 549 struct progress_struct progress; 550 errcode_t retval; 551 char *buf; 552 blk_t blk, err_blk; 553 int c, count, err_count; 554 555 retval = ext2fs_create_journal_superblock(fs, 556 fs->super->s_blocks_count, 0, &buf); 557 if (retval) { 558 com_err("create_journal_dev", retval, 559 _("while initializing journal superblock")); 560 exit(1); 561 } 562 if (quiet) 563 memset(&progress, 0, sizeof(progress)); 564 else 565 progress_init(&progress, _("Zeroing journal device: "), 566 fs->super->s_blocks_count); 567 568 blk = 0; 569 count = fs->super->s_blocks_count; 570 while (count > 0) { 571 if (count > 1024) 572 c = 1024; 573 else 574 c = count; 575 retval = ext2fs_zero_blocks(fs, blk, c, &err_blk, &err_count); 576 if (retval) { 577 com_err("create_journal_dev", retval, 578 _("while zeroing journal device " 579 "(block %u, count %d)"), 580 err_blk, err_count); 581 exit(1); 582 } 583 blk += c; 584 count -= c; 585 progress_update(&progress, blk); 586 } 587 ext2fs_zero_blocks(0, 0, 0, 0, 0); 588 589 retval = io_channel_write_blk(fs->io, 590 fs->super->s_first_data_block+1, 591 1, buf); 592 if (retval) { 593 com_err("create_journal_dev", retval, 594 _("while writing journal superblock")); 595 exit(1); 596 } 597 progress_close(&progress); 598} 599 600static void show_stats(ext2_filsys fs) 601{ 602 struct ext2_super_block *s = fs->super; 603 char buf[80]; 604 char *os; 605 blk_t group_block; 606 dgrp_t i; 607 int need, col_left; 608 609 if (fs_param.s_blocks_count != s->s_blocks_count) 610 fprintf(stderr, _("warning: %u blocks unused.\n\n"), 611 fs_param.s_blocks_count - s->s_blocks_count); 612 613 memset(buf, 0, sizeof(buf)); 614 strncpy(buf, s->s_volume_name, sizeof(s->s_volume_name)); 615 printf(_("Filesystem label=%s\n"), buf); 616 fputs(_("OS type: "), stdout); 617 os = e2p_os2string(fs->super->s_creator_os); 618 fputs(os, stdout); 619 free(os); 620 printf("\n"); 621 printf(_("Block size=%u (log=%u)\n"), fs->blocksize, 622 s->s_log_block_size); 623 printf(_("Fragment size=%u (log=%u)\n"), fs->fragsize, 624 s->s_log_frag_size); 625 printf(_("Stride=%u blocks, Stripe width=%u blocks\n"), 626 s->s_raid_stride, s->s_raid_stripe_width); 627 printf(_("%u inodes, %u blocks\n"), s->s_inodes_count, 628 s->s_blocks_count); 629 printf(_("%u blocks (%2.2f%%) reserved for the super user\n"), 630 s->s_r_blocks_count, 631 100.0 * s->s_r_blocks_count / s->s_blocks_count); 632 printf(_("First data block=%u\n"), s->s_first_data_block); 633 if (s->s_reserved_gdt_blocks) 634 printf(_("Maximum filesystem blocks=%lu\n"), 635 (s->s_reserved_gdt_blocks + fs->desc_blocks) * 636 EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group); 637 if (fs->group_desc_count > 1) 638 printf(_("%u block groups\n"), fs->group_desc_count); 639 else 640 printf(_("%u block group\n"), fs->group_desc_count); 641 printf(_("%u blocks per group, %u fragments per group\n"), 642 s->s_blocks_per_group, s->s_frags_per_group); 643 printf(_("%u inodes per group\n"), s->s_inodes_per_group); 644 645 if (fs->group_desc_count == 1) { 646 printf("\n"); 647 return; 648 } 649 650 printf(_("Superblock backups stored on blocks: ")); 651 group_block = s->s_first_data_block; 652 col_left = 0; 653 for (i = 1; i < fs->group_desc_count; i++) { 654 group_block += s->s_blocks_per_group; 655 if (!ext2fs_bg_has_super(fs, i)) 656 continue; 657 if (i != 1) 658 printf(", "); 659 need = int_log10(group_block) + 2; 660 if (need > col_left) { 661 printf("\n\t"); 662 col_left = 72; 663 } 664 col_left -= need; 665 printf("%u", group_block); 666 } 667 printf("\n\n"); 668} 669 670/* 671 * Set the S_CREATOR_OS field. Return true if OS is known, 672 * otherwise, 0. 673 */ 674static int set_os(struct ext2_super_block *sb, char *os) 675{ 676 if (isdigit (*os)) 677 sb->s_creator_os = atoi (os); 678 else if (strcasecmp(os, "linux") == 0) 679 sb->s_creator_os = EXT2_OS_LINUX; 680 else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0) 681 sb->s_creator_os = EXT2_OS_HURD; 682 else if (strcasecmp(os, "freebsd") == 0) 683 sb->s_creator_os = EXT2_OS_FREEBSD; 684 else if (strcasecmp(os, "lites") == 0) 685 sb->s_creator_os = EXT2_OS_LITES; 686 else 687 return 0; 688 return 1; 689} 690 691#define PATH_SET "PATH=/sbin" 692 693static void parse_extended_opts(struct ext2_super_block *param, 694 const char *opts) 695{ 696 char *buf, *token, *next, *p, *arg, *badopt = 0; 697 int len; 698 int r_usage = 0; 699 700 len = strlen(opts); 701 buf = malloc(len+1); 702 if (!buf) { 703 fprintf(stderr, 704 _("Couldn't allocate memory to parse options!\n")); 705 exit(1); 706 } 707 strcpy(buf, opts); 708 for (token = buf; token && *token; token = next) { 709 p = strchr(token, ','); 710 next = 0; 711 if (p) { 712 *p = 0; 713 next = p+1; 714 } 715 arg = strchr(token, '='); 716 if (arg) { 717 *arg = 0; 718 arg++; 719 } 720 if (strcmp(token, "stride") == 0) { 721 if (!arg) { 722 r_usage++; 723 badopt = token; 724 continue; 725 } 726 param->s_raid_stride = strtoul(arg, &p, 0); 727 if (*p || (param->s_raid_stride == 0)) { 728 fprintf(stderr, 729 _("Invalid stride parameter: %s\n"), 730 arg); 731 r_usage++; 732 continue; 733 } 734 } else if (strcmp(token, "stripe-width") == 0 || 735 strcmp(token, "stripe_width") == 0) { 736 if (!arg) { 737 r_usage++; 738 badopt = token; 739 continue; 740 } 741 param->s_raid_stripe_width = strtoul(arg, &p, 0); 742 if (*p || (param->s_raid_stripe_width == 0)) { 743 fprintf(stderr, 744 _("Invalid stripe-width parameter: %s\n"), 745 arg); 746 r_usage++; 747 continue; 748 } 749 } else if (!strcmp(token, "resize")) { 750 unsigned long resize, bpg, rsv_groups; 751 unsigned long group_desc_count, desc_blocks; 752 unsigned int gdpb, blocksize; 753 int rsv_gdb; 754 755 if (!arg) { 756 r_usage++; 757 badopt = token; 758 continue; 759 } 760 761 resize = parse_num_blocks(arg, 762 param->s_log_block_size); 763 764 if (resize == 0) { 765 fprintf(stderr, 766 _("Invalid resize parameter: %s\n"), 767 arg); 768 r_usage++; 769 continue; 770 } 771 if (resize <= param->s_blocks_count) { 772 fprintf(stderr, 773 _("The resize maximum must be greater " 774 "than the filesystem size.\n")); 775 r_usage++; 776 continue; 777 } 778 779 blocksize = EXT2_BLOCK_SIZE(param); 780 bpg = param->s_blocks_per_group; 781 if (!bpg) 782 bpg = blocksize * 8; 783 gdpb = EXT2_DESC_PER_BLOCK(param); 784 group_desc_count = 785 ext2fs_div_ceil(param->s_blocks_count, bpg); 786 desc_blocks = (group_desc_count + 787 gdpb - 1) / gdpb; 788 rsv_groups = ext2fs_div_ceil(resize, bpg); 789 rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) - 790 desc_blocks; 791 if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param)) 792 rsv_gdb = EXT2_ADDR_PER_BLOCK(param); 793 794 if (rsv_gdb > 0) { 795 if (param->s_rev_level == EXT2_GOOD_OLD_REV) { 796 fprintf(stderr, 797 _("On-line resizing not supported with revision 0 filesystems\n")); 798 free(buf); 799 exit(1); 800 } 801 param->s_feature_compat |= 802 EXT2_FEATURE_COMPAT_RESIZE_INODE; 803 804 param->s_reserved_gdt_blocks = rsv_gdb; 805 } 806 } else if (!strcmp(token, "test_fs")) { 807 param->s_flags |= EXT2_FLAGS_TEST_FILESYS; 808 } else if (!strcmp(token, "lazy_itable_init")) { 809 if (arg) 810 lazy_itable_init = strtoul(arg, &p, 0); 811 else 812 lazy_itable_init = 1; 813 } else if (!strcmp(token, "discard")) { 814 discard = 1; 815 } else if (!strcmp(token, "nodiscard")) { 816 discard = 0; 817 } else { 818 r_usage++; 819 badopt = token; 820 } 821 } 822 if (r_usage) { 823 fprintf(stderr, _("\nBad option(s) specified: %s\n\n" 824 "Extended options are separated by commas, " 825 "and may take an argument which\n" 826 "\tis set off by an equals ('=') sign.\n\n" 827 "Valid extended options are:\n" 828 "\tstride=<RAID per-disk data chunk in blocks>\n" 829 "\tstripe-width=<RAID stride * data disks in blocks>\n" 830 "\tresize=<resize maximum size in blocks>\n" 831 "\tlazy_itable_init=<0 to disable, 1 to enable>\n" 832 "\ttest_fs\n" 833 "\tdiscard\n" 834 "\tnodiscard\n\n"), 835 badopt ? badopt : ""); 836 free(buf); 837 exit(1); 838 } 839 if (param->s_raid_stride && 840 (param->s_raid_stripe_width % param->s_raid_stride) != 0) 841 fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even " 842 "multiple of stride %u.\n\n"), 843 param->s_raid_stripe_width, param->s_raid_stride); 844 845 free(buf); 846} 847 848static __u32 ok_features[3] = { 849 /* Compat */ 850 EXT3_FEATURE_COMPAT_HAS_JOURNAL | 851 EXT2_FEATURE_COMPAT_RESIZE_INODE | 852 EXT2_FEATURE_COMPAT_DIR_INDEX | 853 EXT2_FEATURE_COMPAT_EXT_ATTR, 854 /* Incompat */ 855 EXT2_FEATURE_INCOMPAT_FILETYPE| 856 EXT3_FEATURE_INCOMPAT_EXTENTS| 857 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV| 858 EXT2_FEATURE_INCOMPAT_META_BG| 859 EXT4_FEATURE_INCOMPAT_FLEX_BG, 860 /* R/O compat */ 861 EXT2_FEATURE_RO_COMPAT_LARGE_FILE| 862 EXT4_FEATURE_RO_COMPAT_HUGE_FILE| 863 EXT4_FEATURE_RO_COMPAT_DIR_NLINK| 864 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE| 865 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER| 866 EXT4_FEATURE_RO_COMPAT_GDT_CSUM 867}; 868 869 870static void syntax_err_report(const char *filename, long err, int line_num) 871{ 872 fprintf(stderr, 873 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"), 874 filename, line_num, error_message(err)); 875 exit(1); 876} 877 878static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 }; 879 880static void edit_feature(const char *str, __u32 *compat_array) 881{ 882 if (!str) 883 return; 884 885 if (e2p_edit_feature(str, compat_array, ok_features)) { 886 fprintf(stderr, _("Invalid filesystem option set: %s\n"), 887 str); 888 exit(1); 889 } 890} 891 892struct str_list { 893 char **list; 894 int num; 895 int max; 896}; 897 898static errcode_t init_list(struct str_list *sl) 899{ 900 sl->num = 0; 901 sl->max = 0; 902 sl->list = malloc((sl->max+1) * sizeof(char *)); 903 if (!sl->list) 904 return ENOMEM; 905 sl->list[0] = 0; 906 return 0; 907} 908 909static errcode_t push_string(struct str_list *sl, const char *str) 910{ 911 char **new_list; 912 913 if (sl->num >= sl->max) { 914 sl->max += 2; 915 new_list = realloc(sl->list, (sl->max+1) * sizeof(char *)); 916 if (!new_list) 917 return ENOMEM; 918 sl->list = new_list; 919 } 920 sl->list[sl->num] = malloc(strlen(str)+1); 921 if (sl->list[sl->num] == 0) 922 return ENOMEM; 923 strcpy(sl->list[sl->num], str); 924 sl->num++; 925 sl->list[sl->num] = 0; 926 return 0; 927} 928 929static void print_str_list(char **list) 930{ 931 char **cpp; 932 933 for (cpp = list; *cpp; cpp++) { 934 printf("'%s'", *cpp); 935 if (cpp[1]) 936 fputs(", ", stdout); 937 } 938 fputc('\n', stdout); 939} 940 941/* 942 * Return TRUE if the profile has the given subsection 943 */ 944static int profile_has_subsection(profile_t profile, const char *section, 945 const char *subsection) 946{ 947 void *state; 948 const char *names[4]; 949 char *name; 950 int ret = 0; 951 952 names[0] = section; 953 names[1] = subsection; 954 names[2] = 0; 955 956 if (profile_iterator_create(profile, names, 957 PROFILE_ITER_LIST_SECTION | 958 PROFILE_ITER_RELATIONS_ONLY, &state)) 959 return 0; 960 961 if ((profile_iterator(&state, &name, 0) == 0) && name) { 962 free(name); 963 ret = 1; 964 } 965 966 profile_iterator_free(&state); 967 return ret; 968} 969 970static char **parse_fs_type(const char *fs_type, 971 const char *usage_types, 972 struct ext2_super_block *fs_param, 973 char *progname) 974{ 975 const char *ext_type = 0; 976 char *parse_str; 977 char *profile_type = 0; 978 char *cp, *t; 979 const char *size_type; 980 struct str_list list; 981 unsigned long meg; 982 int is_hurd = 0; 983 984 if (init_list(&list)) 985 return 0; 986 987 if (creator_os && (!strcasecmp(creator_os, "GNU") || 988 !strcasecmp(creator_os, "hurd"))) 989 is_hurd = 1; 990 991 if (fs_type) 992 ext_type = fs_type; 993 else if (is_hurd) 994 ext_type = "ext2"; 995 else if (!strcmp(program_name, "mke3fs")) 996 ext_type = "ext3"; 997 else if (progname) { 998 ext_type = strrchr(progname, '/'); 999 if (ext_type) 1000 ext_type++; 1001 else 1002 ext_type = progname; 1003 1004 if (!strncmp(ext_type, "mkfs.", 5)) { 1005 ext_type += 5; 1006 if (ext_type[0] == 0) 1007 ext_type = 0; 1008 } else 1009 ext_type = 0; 1010 } 1011 1012 if (!ext_type) { 1013 profile_get_string(profile, "defaults", "fs_type", 0, 1014 "ext2", &profile_type); 1015 ext_type = profile_type; 1016 if (!strcmp(ext_type, "ext2") && (journal_size != 0)) 1017 ext_type = "ext3"; 1018 } 1019 1020 1021 if (!profile_has_subsection(profile, "fs_types", ext_type) && 1022 strcmp(ext_type, "ext2")) { 1023 printf(_("\nYour mke2fs.conf file does not define the " 1024 "%s filesystem type.\n"), ext_type); 1025 if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") || 1026 !strcmp(ext_type, "ext4dev")) { 1027 printf(_("You probably need to install an updated " 1028 "mke2fs.conf file.\n\n")); 1029 } 1030 if (!force) { 1031 printf(_("Aborting...\n")); 1032 exit(1); 1033 } 1034 } 1035 1036 meg = (1024 * 1024) / EXT2_BLOCK_SIZE(fs_param); 1037 if (fs_param->s_blocks_count < 3 * meg) 1038 size_type = "floppy"; 1039 else if (fs_param->s_blocks_count < 512 * meg) 1040 size_type = "small"; 1041 else 1042 size_type = "default"; 1043 1044 if (!usage_types) 1045 usage_types = size_type; 1046 1047 parse_str = malloc(usage_types ? strlen(usage_types)+1 : 1); 1048 if (!parse_str) { 1049 free(list.list); 1050 return 0; 1051 } 1052 if (usage_types) 1053 strcpy(parse_str, usage_types); 1054 else 1055 *parse_str = '\0'; 1056 1057 if (ext_type) 1058 push_string(&list, ext_type); 1059 cp = parse_str; 1060 while (1) { 1061 t = strchr(cp, ','); 1062 if (t) 1063 *t = '\0'; 1064 1065 if (*cp) { 1066 if (profile_has_subsection(profile, "fs_types", cp)) 1067 push_string(&list, cp); 1068 else if (strcmp(cp, "default") != 0) 1069 fprintf(stderr, 1070 _("\nWarning: the fs_type %s is not " 1071 "defined in mke2fs.conf\n\n"), 1072 cp); 1073 } 1074 if (t) 1075 cp = t+1; 1076 else { 1077 cp = ""; 1078 break; 1079 } 1080 } 1081 free(parse_str); 1082 free(profile_type); 1083 if (is_hurd) 1084 push_string(&list, "hurd"); 1085 return (list.list); 1086} 1087 1088static char *get_string_from_profile(char **fs_types, const char *opt, 1089 const char *def_val) 1090{ 1091 char *ret = 0; 1092 int i; 1093 1094 for (i=0; fs_types[i]; i++); 1095 for (i-=1; i >=0 ; i--) { 1096 profile_get_string(profile, "fs_types", fs_types[i], 1097 opt, 0, &ret); 1098 if (ret) 1099 return ret; 1100 } 1101 profile_get_string(profile, "defaults", opt, 0, def_val, &ret); 1102 return (ret); 1103} 1104 1105static int get_int_from_profile(char **fs_types, const char *opt, int def_val) 1106{ 1107 int ret; 1108 char **cpp; 1109 1110 profile_get_integer(profile, "defaults", opt, 0, def_val, &ret); 1111 for (cpp = fs_types; *cpp; cpp++) 1112 profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret); 1113 return ret; 1114} 1115 1116static int get_bool_from_profile(char **fs_types, const char *opt, int def_val) 1117{ 1118 int ret; 1119 char **cpp; 1120 1121 profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret); 1122 for (cpp = fs_types; *cpp; cpp++) 1123 profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret); 1124 return ret; 1125} 1126 1127extern const char *mke2fs_default_profile; 1128static const char *default_files[] = { "<default>", 0 }; 1129 1130#ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY 1131/* 1132 * Sets the geometry of a device (stripe/stride), and returns the 1133 * device's alignment offset, if any, or a negative error. 1134 */ 1135static int get_device_geometry(const char *file, 1136 struct ext2_super_block *fs_param, 1137 int psector_size) 1138{ 1139 int rc = -1; 1140 int blocksize; 1141 blkid_probe pr; 1142 blkid_topology tp; 1143 unsigned long min_io; 1144 unsigned long opt_io; 1145 struct stat statbuf; 1146 1147 /* Nothing to do for a regular file */ 1148 if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode)) 1149 return 0; 1150 1151 pr = blkid_new_probe_from_filename(file); 1152 if (!pr) 1153 goto out; 1154 1155 tp = blkid_probe_get_topology(pr); 1156 if (!tp) 1157 goto out; 1158 1159 min_io = blkid_topology_get_minimum_io_size(tp); 1160 opt_io = blkid_topology_get_optimal_io_size(tp); 1161 blocksize = EXT2_BLOCK_SIZE(fs_param); 1162 if ((min_io == 0) && (psector_size > blocksize)) 1163 min_io = psector_size; 1164 if ((opt_io == 0) && min_io) 1165 opt_io = min_io; 1166 if ((opt_io == 0) && (psector_size > blocksize)) 1167 opt_io = psector_size; 1168 1169 fs_param->s_raid_stride = min_io / blocksize; 1170 fs_param->s_raid_stripe_width = opt_io / blocksize; 1171 1172 rc = blkid_topology_get_alignment_offset(tp); 1173out: 1174 blkid_free_probe(pr); 1175 return rc; 1176} 1177#endif 1178 1179static void PRS(int argc, char *argv[]) 1180{ 1181 int b, c; 1182 int size; 1183 char *tmp, **cpp; 1184 int blocksize = 0; 1185 int inode_ratio = 0; 1186 int inode_size = 0; 1187 unsigned long flex_bg_size = 0; 1188 double reserved_ratio = 5.0; 1189 int lsector_size = 0, psector_size = 0; 1190 int show_version_only = 0; 1191 unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */ 1192 errcode_t retval; 1193 char * oldpath = getenv("PATH"); 1194 char * extended_opts = 0; 1195 const char * fs_type = 0; 1196 const char * usage_types = 0; 1197 blk_t dev_size; 1198#ifdef __linux__ 1199 struct utsname ut; 1200#endif 1201 long sysval; 1202 int s_opt = -1, r_opt = -1; 1203 char *fs_features = 0; 1204 int use_bsize; 1205 char *newpath; 1206 int pathlen = sizeof(PATH_SET) + 1; 1207 1208 if (oldpath) 1209 pathlen += strlen(oldpath); 1210 newpath = malloc(pathlen); 1211 strcpy(newpath, PATH_SET); 1212 1213 /* Update our PATH to include /sbin */ 1214 if (oldpath) { 1215 strcat (newpath, ":"); 1216 strcat (newpath, oldpath); 1217 } 1218 putenv (newpath); 1219 1220 tmp = getenv("MKE2FS_SYNC"); 1221 if (tmp) 1222 sync_kludge = atoi(tmp); 1223 1224 /* Determine the system page size if possible */ 1225#ifdef HAVE_SYSCONF 1226#if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE)) 1227#define _SC_PAGESIZE _SC_PAGE_SIZE 1228#endif 1229#ifdef _SC_PAGESIZE 1230 sysval = sysconf(_SC_PAGESIZE); 1231 if (sysval > 0) 1232 sys_page_size = sysval; 1233#endif /* _SC_PAGESIZE */ 1234#endif /* HAVE_SYSCONF */ 1235 1236 if ((tmp = getenv("MKE2FS_CONFIG")) != NULL) 1237 config_fn[0] = tmp; 1238 profile_set_syntax_err_cb(syntax_err_report); 1239 retval = profile_init(config_fn, &profile); 1240 if (retval == ENOENT) { 1241 profile_init(default_files, &profile); 1242 profile_set_default(profile, mke2fs_default_profile); 1243 } 1244 1245 setbuf(stdout, NULL); 1246 setbuf(stderr, NULL); 1247 add_error_table(&et_ext2_error_table); 1248 add_error_table(&et_prof_error_table); 1249 memset(&fs_param, 0, sizeof(struct ext2_super_block)); 1250 fs_param.s_rev_level = 1; /* Create revision 1 filesystems now */ 1251 1252#ifdef __linux__ 1253 if (uname(&ut)) { 1254 perror("uname"); 1255 exit(1); 1256 } 1257 linux_version_code = parse_version_number(ut.release); 1258 if (linux_version_code && linux_version_code < (2*65536 + 2*256)) 1259 fs_param.s_rev_level = 0; 1260#endif 1261 1262 if (argc && *argv) { 1263 program_name = get_progname(*argv); 1264 1265 /* If called as mkfs.ext3, create a journal inode */ 1266 if (!strcmp(program_name, "mkfs.ext3") || 1267 !strcmp(program_name, "mke3fs")) 1268 journal_size = -1; 1269 } 1270 1271 while ((c = getopt (argc, argv, 1272 "b:cf:g:G:i:jl:m:no:qr:s:t:vE:FI:J:KL:M:N:O:R:ST:U:V")) != EOF) { 1273 switch (c) { 1274 case 'b': 1275 blocksize = strtol(optarg, &tmp, 0); 1276 b = (blocksize > 0) ? blocksize : -blocksize; 1277 if (b < EXT2_MIN_BLOCK_SIZE || 1278 b > EXT2_MAX_BLOCK_SIZE || *tmp) { 1279 com_err(program_name, 0, 1280 _("invalid block size - %s"), optarg); 1281 exit(1); 1282 } 1283 if (blocksize > 4096) 1284 fprintf(stderr, _("Warning: blocksize %d not " 1285 "usable on most systems.\n"), 1286 blocksize); 1287 if (blocksize > 0) 1288 fs_param.s_log_block_size = 1289 int_log2(blocksize >> 1290 EXT2_MIN_BLOCK_LOG_SIZE); 1291 break; 1292 case 'c': /* Check for bad blocks */ 1293 cflag++; 1294 break; 1295 case 'f': 1296 size = strtoul(optarg, &tmp, 0); 1297 if (size < EXT2_MIN_BLOCK_SIZE || 1298 size > EXT2_MAX_BLOCK_SIZE || *tmp) { 1299 com_err(program_name, 0, 1300 _("invalid fragment size - %s"), 1301 optarg); 1302 exit(1); 1303 } 1304 fs_param.s_log_frag_size = 1305 int_log2(size >> EXT2_MIN_BLOCK_LOG_SIZE); 1306 fprintf(stderr, _("Warning: fragments not supported. " 1307 "Ignoring -f option\n")); 1308 break; 1309 case 'g': 1310 fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0); 1311 if (*tmp) { 1312 com_err(program_name, 0, 1313 _("Illegal number for blocks per group")); 1314 exit(1); 1315 } 1316 if ((fs_param.s_blocks_per_group % 8) != 0) { 1317 com_err(program_name, 0, 1318 _("blocks per group must be multiple of 8")); 1319 exit(1); 1320 } 1321 break; 1322 case 'G': 1323 flex_bg_size = strtoul(optarg, &tmp, 0); 1324 if (*tmp) { 1325 com_err(program_name, 0, 1326 _("Illegal number for flex_bg size")); 1327 exit(1); 1328 } 1329 if (flex_bg_size < 1 || 1330 (flex_bg_size & (flex_bg_size-1)) != 0) { 1331 com_err(program_name, 0, 1332 _("flex_bg size must be a power of 2")); 1333 exit(1); 1334 } 1335 break; 1336 case 'i': 1337 inode_ratio = strtoul(optarg, &tmp, 0); 1338 if (inode_ratio < EXT2_MIN_BLOCK_SIZE || 1339 inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024 || 1340 *tmp) { 1341 com_err(program_name, 0, 1342 _("invalid inode ratio %s (min %d/max %d)"), 1343 optarg, EXT2_MIN_BLOCK_SIZE, 1344 EXT2_MAX_BLOCK_SIZE * 1024); 1345 exit(1); 1346 } 1347 break; 1348 case 'J': 1349 parse_journal_opts(optarg); 1350 break; 1351 case 'K': 1352 fprintf(stderr, _("Warning: -K option is deprecated and " 1353 "should not be used anymore. Use " 1354 "\'-E nodiscard\' extended option " 1355 "instead!\n")); 1356 discard = 0; 1357 break; 1358 case 'j': 1359 if (!journal_size) 1360 journal_size = -1; 1361 break; 1362 case 'l': 1363 bad_blocks_filename = malloc(strlen(optarg)+1); 1364 if (!bad_blocks_filename) { 1365 com_err(program_name, ENOMEM, 1366 _("in malloc for bad_blocks_filename")); 1367 exit(1); 1368 } 1369 strcpy(bad_blocks_filename, optarg); 1370 break; 1371 case 'm': 1372 reserved_ratio = strtod(optarg, &tmp); 1373 if ( *tmp || reserved_ratio > 50 || 1374 reserved_ratio < 0) { 1375 com_err(program_name, 0, 1376 _("invalid reserved blocks percent - %s"), 1377 optarg); 1378 exit(1); 1379 } 1380 break; 1381 case 'n': 1382 noaction++; 1383 break; 1384 case 'o': 1385 creator_os = optarg; 1386 break; 1387 case 'q': 1388 quiet = 1; 1389 break; 1390 case 'r': 1391 r_opt = strtoul(optarg, &tmp, 0); 1392 if (*tmp) { 1393 com_err(program_name, 0, 1394 _("bad revision level - %s"), optarg); 1395 exit(1); 1396 } 1397 fs_param.s_rev_level = r_opt; 1398 break; 1399 case 's': /* deprecated */ 1400 s_opt = atoi(optarg); 1401 break; 1402 case 'I': 1403 inode_size = strtoul(optarg, &tmp, 0); 1404 if (*tmp) { 1405 com_err(program_name, 0, 1406 _("invalid inode size - %s"), optarg); 1407 exit(1); 1408 } 1409 break; 1410 case 'v': 1411 verbose = 1; 1412 break; 1413 case 'F': 1414 force++; 1415 break; 1416 case 'L': 1417 volume_label = optarg; 1418 break; 1419 case 'M': 1420 mount_dir = optarg; 1421 break; 1422 case 'N': 1423 num_inodes = strtoul(optarg, &tmp, 0); 1424 if (*tmp) { 1425 com_err(program_name, 0, 1426 _("bad num inodes - %s"), optarg); 1427 exit(1); 1428 } 1429 break; 1430 case 'O': 1431 fs_features = optarg; 1432 break; 1433 case 'E': 1434 case 'R': 1435 extended_opts = optarg; 1436 break; 1437 case 'S': 1438 super_only = 1; 1439 break; 1440 case 't': 1441 fs_type = optarg; 1442 break; 1443 case 'T': 1444 usage_types = optarg; 1445 break; 1446 case 'U': 1447 fs_uuid = optarg; 1448 break; 1449 case 'V': 1450 /* Print version number and exit */ 1451 show_version_only++; 1452 break; 1453 default: 1454 usage(); 1455 } 1456 } 1457 if ((optind == argc) && !show_version_only) 1458 usage(); 1459 device_name = argv[optind++]; 1460 1461 if (!quiet || show_version_only) 1462 fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION, 1463 E2FSPROGS_DATE); 1464 1465 if (show_version_only) { 1466 fprintf(stderr, _("\tUsing %s\n"), 1467 error_message(EXT2_ET_BASE)); 1468 exit(0); 1469 } 1470 1471 /* 1472 * If there's no blocksize specified and there is a journal 1473 * device, use it to figure out the blocksize 1474 */ 1475 if (blocksize <= 0 && journal_device) { 1476 ext2_filsys jfs; 1477 io_manager io_ptr; 1478 1479#ifdef CONFIG_TESTIO_DEBUG 1480 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) { 1481 io_ptr = test_io_manager; 1482 test_io_backing_manager = unix_io_manager; 1483 } else 1484#endif 1485 io_ptr = unix_io_manager; 1486 retval = ext2fs_open(journal_device, 1487 EXT2_FLAG_JOURNAL_DEV_OK, 0, 1488 0, io_ptr, &jfs); 1489 if (retval) { 1490 com_err(program_name, retval, 1491 _("while trying to open journal device %s\n"), 1492 journal_device); 1493 exit(1); 1494 } 1495 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) { 1496 com_err(program_name, 0, 1497 _("Journal dev blocksize (%d) smaller than " 1498 "minimum blocksize %d\n"), jfs->blocksize, 1499 -blocksize); 1500 exit(1); 1501 } 1502 blocksize = jfs->blocksize; 1503 printf(_("Using journal device's blocksize: %d\n"), blocksize); 1504 fs_param.s_log_block_size = 1505 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE); 1506 ext2fs_close(jfs); 1507 } 1508 1509 if (blocksize > sys_page_size) { 1510 if (!force) { 1511 com_err(program_name, 0, 1512 _("%d-byte blocks too big for system (max %d)"), 1513 blocksize, sys_page_size); 1514 proceed_question(); 1515 } 1516 fprintf(stderr, _("Warning: %d-byte blocks too big for system " 1517 "(max %d), forced to continue\n"), 1518 blocksize, sys_page_size); 1519 } 1520 if (optind < argc) { 1521 fs_param.s_blocks_count = parse_num_blocks(argv[optind++], 1522 fs_param.s_log_block_size); 1523 if (!fs_param.s_blocks_count) { 1524 com_err(program_name, 0, 1525 _("invalid blocks count '%s' on device '%s'"), 1526 argv[optind - 1], device_name); 1527 exit(1); 1528 } 1529 } 1530 if (optind < argc) 1531 usage(); 1532 1533 if (!force) 1534 check_plausibility(device_name); 1535 check_mount(device_name, force, _("filesystem")); 1536 1537 fs_param.s_log_frag_size = fs_param.s_log_block_size; 1538 1539 if (noaction && fs_param.s_blocks_count) { 1540 dev_size = fs_param.s_blocks_count; 1541 retval = 0; 1542 } else { 1543 retry: 1544 retval = ext2fs_get_device_size(device_name, 1545 EXT2_BLOCK_SIZE(&fs_param), 1546 &dev_size); 1547 if ((retval == EFBIG) && 1548 (blocksize == 0) && 1549 (fs_param.s_log_block_size == 0)) { 1550 fs_param.s_log_block_size = 2; 1551 blocksize = 4096; 1552 goto retry; 1553 } 1554 } 1555 1556 if (retval == EFBIG) { 1557 blk64_t big_dev_size; 1558 1559 if (blocksize < 4096) { 1560 fs_param.s_log_block_size = 2; 1561 blocksize = 4096; 1562 } 1563 retval = ext2fs_get_device_size2(device_name, 1564 EXT2_BLOCK_SIZE(&fs_param), &big_dev_size); 1565 if (retval) 1566 goto get_size_failure; 1567 if (big_dev_size == (1ULL << 32)) { 1568 dev_size = (blk_t) (big_dev_size - 1); 1569 goto got_size; 1570 } 1571 fprintf(stderr, _("%s: Size of device %s too big " 1572 "to be expressed in 32 bits\n\t" 1573 "using a blocksize of %d.\n"), 1574 program_name, device_name, EXT2_BLOCK_SIZE(&fs_param)); 1575 exit(1); 1576 } 1577get_size_failure: 1578 if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) { 1579 com_err(program_name, retval, 1580 _("while trying to determine filesystem size")); 1581 exit(1); 1582 } 1583got_size: 1584 if (!fs_param.s_blocks_count) { 1585 if (retval == EXT2_ET_UNIMPLEMENTED) { 1586 com_err(program_name, 0, 1587 _("Couldn't determine device size; you " 1588 "must specify\nthe size of the " 1589 "filesystem\n")); 1590 exit(1); 1591 } else { 1592 if (dev_size == 0) { 1593 com_err(program_name, 0, 1594 _("Device size reported to be zero. " 1595 "Invalid partition specified, or\n\t" 1596 "partition table wasn't reread " 1597 "after running fdisk, due to\n\t" 1598 "a modified partition being busy " 1599 "and in use. You may need to reboot\n\t" 1600 "to re-read your partition table.\n" 1601 )); 1602 exit(1); 1603 } 1604 fs_param.s_blocks_count = dev_size; 1605 if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param)) 1606 fs_param.s_blocks_count &= ~((sys_page_size / 1607 EXT2_BLOCK_SIZE(&fs_param))-1); 1608 } 1609 1610 } else if (!force && (fs_param.s_blocks_count > dev_size)) { 1611 com_err(program_name, 0, 1612 _("Filesystem larger than apparent device size.")); 1613 proceed_question(); 1614 } 1615 1616 fs_types = parse_fs_type(fs_type, usage_types, &fs_param, argv[0]); 1617 if (!fs_types) { 1618 fprintf(stderr, _("Failed to parse fs types list\n")); 1619 exit(1); 1620 } 1621 1622 /* Figure out what features should be enabled */ 1623 1624 tmp = NULL; 1625 if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) { 1626 tmp = get_string_from_profile(fs_types, "base_features", 1627 "sparse_super,filetype,resize_inode,dir_index"); 1628 edit_feature(tmp, &fs_param.s_feature_compat); 1629 free(tmp); 1630 1631 for (cpp = fs_types; *cpp; cpp++) { 1632 tmp = NULL; 1633 profile_get_string(profile, "fs_types", *cpp, 1634 "features", "", &tmp); 1635 if (tmp && *tmp) 1636 edit_feature(tmp, &fs_param.s_feature_compat); 1637 free(tmp); 1638 } 1639 tmp = get_string_from_profile(fs_types, "default_features", 1640 ""); 1641 } 1642 edit_feature(fs_features ? fs_features : tmp, 1643 &fs_param.s_feature_compat); 1644 free(tmp); 1645 1646 if (fs_param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) { 1647 fs_types[0] = strdup("journal"); 1648 fs_types[1] = 0; 1649 } 1650 1651 if (verbose) { 1652 fputs(_("fs_types for mke2fs.conf resolution: "), stdout); 1653 print_str_list(fs_types); 1654 } 1655 1656 if (r_opt == EXT2_GOOD_OLD_REV && 1657 (fs_param.s_feature_compat || fs_param.s_feature_incompat || 1658 fs_param.s_feature_ro_compat)) { 1659 fprintf(stderr, _("Filesystem features not supported " 1660 "with revision 0 filesystems\n")); 1661 exit(1); 1662 } 1663 1664 if (s_opt > 0) { 1665 if (r_opt == EXT2_GOOD_OLD_REV) { 1666 fprintf(stderr, _("Sparse superblocks not supported " 1667 "with revision 0 filesystems\n")); 1668 exit(1); 1669 } 1670 fs_param.s_feature_ro_compat |= 1671 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER; 1672 } else if (s_opt == 0) 1673 fs_param.s_feature_ro_compat &= 1674 ~EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER; 1675 1676 if (journal_size != 0) { 1677 if (r_opt == EXT2_GOOD_OLD_REV) { 1678 fprintf(stderr, _("Journals not supported " 1679 "with revision 0 filesystems\n")); 1680 exit(1); 1681 } 1682 fs_param.s_feature_compat |= 1683 EXT3_FEATURE_COMPAT_HAS_JOURNAL; 1684 } 1685 1686 if (fs_param.s_feature_incompat & 1687 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) { 1688 reserved_ratio = 0; 1689 fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV; 1690 fs_param.s_feature_compat = 0; 1691 fs_param.s_feature_ro_compat = 0; 1692 } 1693 1694 if ((fs_param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) && 1695 (fs_param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE)) { 1696 fprintf(stderr, _("The resize_inode and meta_bg features " 1697 "are not compatible.\n" 1698 "They can not be both enabled " 1699 "simultaneously.\n")); 1700 exit(1); 1701 } 1702 1703 /* Set first meta blockgroup via an environment variable */ 1704 /* (this is mostly for debugging purposes) */ 1705 if ((fs_param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) && 1706 ((tmp = getenv("MKE2FS_FIRST_META_BG")))) 1707 fs_param.s_first_meta_bg = atoi(tmp); 1708 1709 /* Get the hardware sector sizes, if available */ 1710 retval = ext2fs_get_device_sectsize(device_name, &lsector_size); 1711 if (retval) { 1712 com_err(program_name, retval, 1713 _("while trying to determine hardware sector size")); 1714 exit(1); 1715 } 1716 retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size); 1717 if (retval) { 1718 com_err(program_name, retval, 1719 _("while trying to determine physical sector size")); 1720 exit(1); 1721 } 1722 1723 if ((tmp = getenv("MKE2FS_DEVICE_SECTSIZE")) != NULL) 1724 lsector_size = atoi(tmp); 1725 if ((tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE")) != NULL) 1726 psector_size = atoi(tmp); 1727 1728 /* Older kernels may not have physical/logical distinction */ 1729 if (!psector_size) 1730 psector_size = lsector_size; 1731 1732 if (blocksize <= 0) { 1733 use_bsize = get_int_from_profile(fs_types, "blocksize", 4096); 1734 1735 if (use_bsize == -1) { 1736 use_bsize = sys_page_size; 1737 if ((linux_version_code < (2*65536 + 6*256)) && 1738 (use_bsize > 4096)) 1739 use_bsize = 4096; 1740 } 1741 if (lsector_size && use_bsize < lsector_size) 1742 use_bsize = lsector_size; 1743 if ((blocksize < 0) && (use_bsize < (-blocksize))) 1744 use_bsize = -blocksize; 1745 blocksize = use_bsize; 1746 fs_param.s_blocks_count /= blocksize / 1024; 1747 } else { 1748 if (blocksize < lsector_size) { /* Impossible */ 1749 com_err(program_name, EINVAL, 1750 _("while setting blocksize; too small " 1751 "for device\n")); 1752 exit(1); 1753 } else if ((blocksize < psector_size) && 1754 (psector_size <= sys_page_size)) { /* Suboptimal */ 1755 fprintf(stderr, _("Warning: specified blocksize %d is " 1756 "less than device physical sectorsize %d\n"), 1757 blocksize, psector_size); 1758 } 1759 } 1760 1761 if (inode_ratio == 0) { 1762 inode_ratio = get_int_from_profile(fs_types, "inode_ratio", 1763 8192); 1764 if (inode_ratio < blocksize) 1765 inode_ratio = blocksize; 1766 } 1767 1768 fs_param.s_log_frag_size = fs_param.s_log_block_size = 1769 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE); 1770 1771#ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY 1772 retval = get_device_geometry(device_name, &fs_param, psector_size); 1773 if (retval < 0) { 1774 fprintf(stderr, 1775 _("warning: Unable to get device geometry for %s\n"), 1776 device_name); 1777 } else if (retval) { 1778 printf(_("%s alignment is offset by %lu bytes.\n"), 1779 device_name, retval); 1780 printf(_("This may result in very poor performance, " 1781 "(re)-partitioning suggested.\n")); 1782 } 1783#endif 1784 1785 blocksize = EXT2_BLOCK_SIZE(&fs_param); 1786 1787 lazy_itable_init = 0; 1788 if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0) 1789 lazy_itable_init = 1; 1790 1791 lazy_itable_init = get_bool_from_profile(fs_types, 1792 "lazy_itable_init", 1793 lazy_itable_init); 1794 discard = get_bool_from_profile(fs_types, "discard" , discard); 1795 1796 /* Get options from profile */ 1797 for (cpp = fs_types; *cpp; cpp++) { 1798 tmp = NULL; 1799 profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp); 1800 if (tmp && *tmp) 1801 parse_extended_opts(&fs_param, tmp); 1802 free(tmp); 1803 } 1804 1805 if (extended_opts) 1806 parse_extended_opts(&fs_param, extended_opts); 1807 1808 /* Since sparse_super is the default, we would only have a problem 1809 * here if it was explicitly disabled. 1810 */ 1811 if ((fs_param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE) && 1812 !(fs_param.s_feature_ro_compat&EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)) { 1813 com_err(program_name, 0, 1814 _("reserved online resize blocks not supported " 1815 "on non-sparse filesystem")); 1816 exit(1); 1817 } 1818 1819 if (fs_param.s_blocks_per_group) { 1820 if (fs_param.s_blocks_per_group < 256 || 1821 fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) { 1822 com_err(program_name, 0, 1823 _("blocks per group count out of range")); 1824 exit(1); 1825 } 1826 } 1827 1828 if (inode_size == 0) 1829 inode_size = get_int_from_profile(fs_types, "inode_size", 0); 1830 if (!flex_bg_size && (fs_param.s_feature_incompat & 1831 EXT4_FEATURE_INCOMPAT_FLEX_BG)) 1832 flex_bg_size = get_int_from_profile(fs_types, 1833 "flex_bg_size", 16); 1834 if (flex_bg_size) { 1835 if (!(fs_param.s_feature_incompat & 1836 EXT4_FEATURE_INCOMPAT_FLEX_BG)) { 1837 com_err(program_name, 0, 1838 _("Flex_bg feature not enabled, so " 1839 "flex_bg size may not be specified")); 1840 exit(1); 1841 } 1842 fs_param.s_log_groups_per_flex = int_log2(flex_bg_size); 1843 } 1844 1845 if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) { 1846 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE || 1847 inode_size > EXT2_BLOCK_SIZE(&fs_param) || 1848 inode_size & (inode_size - 1)) { 1849 com_err(program_name, 0, 1850 _("invalid inode size %d (min %d/max %d)"), 1851 inode_size, EXT2_GOOD_OLD_INODE_SIZE, 1852 blocksize); 1853 exit(1); 1854 } 1855 fs_param.s_inode_size = inode_size; 1856 } 1857 1858 /* Make sure number of inodes specified will fit in 32 bits */ 1859 if (num_inodes == 0) { 1860 unsigned long long n; 1861 n = (unsigned long long) fs_param.s_blocks_count * blocksize / inode_ratio; 1862 if (n > ~0U) { 1863 com_err(program_name, 0, 1864 _("too many inodes (%llu), raise inode ratio?"), n); 1865 exit(1); 1866 } 1867 } else if (num_inodes > ~0U) { 1868 com_err(program_name, 0, 1869 _("too many inodes (%llu), specify < 2^32 inodes"), 1870 num_inodes); 1871 exit(1); 1872 } 1873 /* 1874 * Calculate number of inodes based on the inode ratio 1875 */ 1876 fs_param.s_inodes_count = num_inodes ? num_inodes : 1877 ((__u64) fs_param.s_blocks_count * blocksize) 1878 / inode_ratio; 1879 1880 if ((((long long)fs_param.s_inodes_count) * 1881 (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >= 1882 (((long long)fs_param.s_blocks_count) * 1883 EXT2_BLOCK_SIZE(&fs_param))) { 1884 com_err(program_name, 0, _("inode_size (%u) * inodes_count " 1885 "(%u) too big for a\n\t" 1886 "filesystem with %lu blocks, " 1887 "specify higher inode_ratio (-i)\n\t" 1888 "or lower inode count (-N).\n"), 1889 inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE, 1890 fs_param.s_inodes_count, 1891 (unsigned long) fs_param.s_blocks_count); 1892 exit(1); 1893 } 1894 1895 /* 1896 * Calculate number of blocks to reserve 1897 */ 1898 fs_param.s_r_blocks_count = (unsigned int) (reserved_ratio * 1899 fs_param.s_blocks_count / 100.0); 1900} 1901 1902static int should_do_undo(const char *name) 1903{ 1904 errcode_t retval; 1905 io_channel channel; 1906 __u16 s_magic; 1907 struct ext2_super_block super; 1908 io_manager manager = unix_io_manager; 1909 int csum_flag, force_undo; 1910 1911 csum_flag = EXT2_HAS_RO_COMPAT_FEATURE(&fs_param, 1912 EXT4_FEATURE_RO_COMPAT_GDT_CSUM); 1913 force_undo = get_int_from_profile(fs_types, "force_undo", 0); 1914 if (!force_undo && (!csum_flag || !lazy_itable_init)) 1915 return 0; 1916 1917 retval = manager->open(name, IO_FLAG_EXCLUSIVE, &channel); 1918 if (retval) { 1919 /* 1920 * We don't handle error cases instead we 1921 * declare that the file system doesn't exist 1922 * and let the rest of mke2fs take care of 1923 * error 1924 */ 1925 retval = 0; 1926 goto open_err_out; 1927 } 1928 1929 io_channel_set_blksize(channel, SUPERBLOCK_OFFSET); 1930 retval = io_channel_read_blk(channel, 1, -SUPERBLOCK_SIZE, &super); 1931 if (retval) { 1932 retval = 0; 1933 goto err_out; 1934 } 1935 1936#if defined(WORDS_BIGENDIAN) 1937 s_magic = ext2fs_swab16(super.s_magic); 1938#else 1939 s_magic = super.s_magic; 1940#endif 1941 1942 if (s_magic == EXT2_SUPER_MAGIC) 1943 retval = 1; 1944 1945err_out: 1946 io_channel_close(channel); 1947 1948open_err_out: 1949 1950 return retval; 1951} 1952 1953static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr) 1954{ 1955 errcode_t retval = 0; 1956 char *tdb_dir, *tdb_file; 1957 char *device_name, *tmp_name; 1958 1959 /* 1960 * Configuration via a conf file would be 1961 * nice 1962 */ 1963 tdb_dir = getenv("E2FSPROGS_UNDO_DIR"); 1964 if (!tdb_dir) 1965 profile_get_string(profile, "defaults", 1966 "undo_dir", 0, "/var/lib/e2fsprogs", 1967 &tdb_dir); 1968 1969 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) || 1970 access(tdb_dir, W_OK)) 1971 return 0; 1972 1973 tmp_name = strdup(name); 1974 if (!tmp_name) { 1975 alloc_fn_fail: 1976 com_err(program_name, ENOMEM, 1977 _("Couldn't allocate memory for tdb filename\n")); 1978 return ENOMEM; 1979 } 1980 device_name = basename(tmp_name); 1981 tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(device_name) + 7 + 1); 1982 if (!tdb_file) 1983 goto alloc_fn_fail; 1984 sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, device_name); 1985 1986 if (!access(tdb_file, F_OK)) { 1987 if (unlink(tdb_file) < 0) { 1988 retval = errno; 1989 com_err(program_name, retval, 1990 _("while trying to delete %s"), 1991 tdb_file); 1992 free(tdb_file); 1993 return retval; 1994 } 1995 } 1996 1997 set_undo_io_backing_manager(*io_ptr); 1998 *io_ptr = undo_io_manager; 1999 set_undo_io_backup_file(tdb_file); 2000 printf(_("Overwriting existing filesystem; this can be undone " 2001 "using the command:\n" 2002 " e2undo %s %s\n\n"), tdb_file, name); 2003 2004 free(tdb_file); 2005 free(tmp_name); 2006 return retval; 2007} 2008 2009#ifdef __linux__ 2010 2011#ifndef BLKDISCARD 2012#define BLKDISCARD _IO(0x12,119) 2013#endif 2014 2015#ifndef BLKDISCARDZEROES 2016#define BLKDISCARDZEROES _IO(0x12,124) 2017#endif 2018 2019/* 2020 * Return zero if the discard succeeds, and -1 if the discard fails. 2021 */ 2022static int mke2fs_discard_blocks(ext2_filsys fs) 2023{ 2024 int fd; 2025 int ret; 2026 int blocksize; 2027 __u64 blocks; 2028 __uint64_t range[2]; 2029 2030 blocks = fs->super->s_blocks_count; 2031 blocksize = EXT2_BLOCK_SIZE(fs->super); 2032 range[0] = 0; 2033 range[1] = blocks * blocksize; 2034 2035#ifdef HAVE_OPEN64 2036 fd = open64(fs->device_name, O_RDWR); 2037#else 2038 fd = open(fs->device_name, O_RDWR); 2039#endif 2040 if (fd > 0) { 2041 ret = ioctl(fd, BLKDISCARD, &range); 2042 if (verbose) { 2043 printf(_("Calling BLKDISCARD from %llu to %llu "), 2044 (unsigned long long) range[0], 2045 (unsigned long long) range[1]); 2046 if (ret) 2047 printf(_("failed.\n")); 2048 else 2049 printf(_("succeeded.\n")); 2050 } 2051 close(fd); 2052 } 2053 return ret; 2054} 2055 2056static int mke2fs_discard_zeroes_data(ext2_filsys fs) 2057{ 2058 int fd; 2059 int ret; 2060 int discard_zeroes_data = 0; 2061 2062#ifdef HAVE_OPEN64 2063 fd = open64(fs->device_name, O_RDWR); 2064#else 2065 fd = open(fs->device_name, O_RDWR); 2066#endif 2067 if (fd > 0) { 2068 ioctl(fd, BLKDISCARDZEROES, &discard_zeroes_data); 2069 close(fd); 2070 } 2071 return discard_zeroes_data; 2072} 2073#else 2074#define mke2fs_discard_blocks(fs) 1 2075#define mke2fs_discard_zeroes_data(fs) 0 2076#endif 2077 2078int main (int argc, char *argv[]) 2079{ 2080 errcode_t retval = 0; 2081 ext2_filsys fs; 2082 badblocks_list bb_list = 0; 2083 unsigned int journal_blocks; 2084 unsigned int i; 2085 int val, hash_alg; 2086 io_manager io_ptr; 2087 char tdb_string[40]; 2088 char *hash_alg_str; 2089 int itable_zeroed = 0; 2090 2091#ifdef ENABLE_NLS 2092 setlocale(LC_MESSAGES, ""); 2093 setlocale(LC_CTYPE, ""); 2094 bindtextdomain(NLS_CAT_NAME, LOCALEDIR); 2095 textdomain(NLS_CAT_NAME); 2096#endif 2097 PRS(argc, argv); 2098 2099#ifdef CONFIG_TESTIO_DEBUG 2100 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) { 2101 io_ptr = test_io_manager; 2102 test_io_backing_manager = unix_io_manager; 2103 } else 2104#endif 2105 io_ptr = unix_io_manager; 2106 2107 if (should_do_undo(device_name)) { 2108 retval = mke2fs_setup_tdb(device_name, &io_ptr); 2109 if (retval) 2110 exit(1); 2111 } 2112 2113 /* 2114 * Initialize the superblock.... 2115 */ 2116 retval = ext2fs_initialize(device_name, EXT2_FLAG_EXCLUSIVE, &fs_param, 2117 io_ptr, &fs); 2118 if (retval) { 2119 com_err(device_name, retval, _("while setting up superblock")); 2120 exit(1); 2121 } 2122 2123 /* Can't undo discard ... */ 2124 if (discard && (io_ptr != undo_io_manager)) { 2125 retval = mke2fs_discard_blocks(fs); 2126 2127 if (!retval && mke2fs_discard_zeroes_data(fs)) { 2128 if (verbose) 2129 printf(_("Discard succeeded and will return 0s " 2130 " - skipping inode table wipe\n")); 2131 lazy_itable_init = 1; 2132 itable_zeroed = 1; 2133 } 2134 } 2135 2136 sprintf(tdb_string, "tdb_data_size=%d", fs->blocksize <= 4096 ? 2137 32768 : fs->blocksize * 8); 2138 io_channel_set_options(fs->io, tdb_string); 2139 2140 if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS) 2141 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS; 2142 2143 if ((fs_param.s_feature_incompat & 2144 (EXT3_FEATURE_INCOMPAT_EXTENTS|EXT4_FEATURE_INCOMPAT_FLEX_BG)) || 2145 (fs_param.s_feature_ro_compat & 2146 (EXT4_FEATURE_RO_COMPAT_HUGE_FILE|EXT4_FEATURE_RO_COMPAT_GDT_CSUM| 2147 EXT4_FEATURE_RO_COMPAT_DIR_NLINK| 2148 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE))) 2149 fs->super->s_kbytes_written = 1; 2150 2151 /* 2152 * Wipe out the old on-disk superblock 2153 */ 2154 if (!noaction) 2155 zap_sector(fs, 2, 6); 2156 2157 /* 2158 * Parse or generate a UUID for the filesystem 2159 */ 2160 if (fs_uuid) { 2161 if (uuid_parse(fs_uuid, fs->super->s_uuid) !=0) { 2162 com_err(device_name, 0, "could not parse UUID: %s\n", 2163 fs_uuid); 2164 exit(1); 2165 } 2166 } else 2167 uuid_generate(fs->super->s_uuid); 2168 2169 /* 2170 * Initialize the directory index variables 2171 */ 2172 hash_alg_str = get_string_from_profile(fs_types, "hash_alg", 2173 "half_md4"); 2174 hash_alg = e2p_string2hash(hash_alg_str); 2175 free(hash_alg_str); 2176 fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg : 2177 EXT2_HASH_HALF_MD4; 2178 uuid_generate((unsigned char *) fs->super->s_hash_seed); 2179 2180 /* 2181 * Add "jitter" to the superblock's check interval so that we 2182 * don't check all the filesystems at the same time. We use a 2183 * kludgy hack of using the UUID to derive a random jitter value. 2184 */ 2185 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++) 2186 val += fs->super->s_uuid[i]; 2187 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT; 2188 2189 /* 2190 * Override the creator OS, if applicable 2191 */ 2192 if (creator_os && !set_os(fs->super, creator_os)) { 2193 com_err (program_name, 0, _("unknown os - %s"), creator_os); 2194 exit(1); 2195 } 2196 2197 /* 2198 * For the Hurd, we will turn off filetype since it doesn't 2199 * support it. 2200 */ 2201 if (fs->super->s_creator_os == EXT2_OS_HURD) 2202 fs->super->s_feature_incompat &= 2203 ~EXT2_FEATURE_INCOMPAT_FILETYPE; 2204 2205 /* 2206 * Set the volume label... 2207 */ 2208 if (volume_label) { 2209 memset(fs->super->s_volume_name, 0, 2210 sizeof(fs->super->s_volume_name)); 2211 strncpy(fs->super->s_volume_name, volume_label, 2212 sizeof(fs->super->s_volume_name)); 2213 } 2214 2215 /* 2216 * Set the last mount directory 2217 */ 2218 if (mount_dir) { 2219 memset(fs->super->s_last_mounted, 0, 2220 sizeof(fs->super->s_last_mounted)); 2221 strncpy(fs->super->s_last_mounted, mount_dir, 2222 sizeof(fs->super->s_last_mounted)); 2223 } 2224 2225 if (!quiet || noaction) 2226 show_stats(fs); 2227 2228 if (noaction) 2229 exit(0); 2230 2231 if (fs->super->s_feature_incompat & 2232 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) { 2233 create_journal_dev(fs); 2234 exit(ext2fs_close(fs) ? 1 : 0); 2235 } 2236 2237 if (bad_blocks_filename) 2238 read_bb_file(fs, &bb_list, bad_blocks_filename); 2239 if (cflag) 2240 test_disk(fs, &bb_list); 2241 2242 handle_bad_blocks(fs, bb_list); 2243 fs->stride = fs_stride = fs->super->s_raid_stride; 2244 retval = ext2fs_allocate_tables(fs); 2245 if (retval) { 2246 com_err(program_name, retval, 2247 _("while trying to allocate filesystem tables")); 2248 exit(1); 2249 } 2250 if (super_only) { 2251 fs->super->s_state |= EXT2_ERROR_FS; 2252 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY); 2253 } else { 2254 /* rsv must be a power of two (64kB is MD RAID sb alignment) */ 2255 unsigned int rsv = 65536 / fs->blocksize; 2256 unsigned long blocks = fs->super->s_blocks_count; 2257 unsigned long start; 2258 blk_t ret_blk; 2259 2260#ifdef ZAP_BOOTBLOCK 2261 zap_sector(fs, 0, 2); 2262#endif 2263 2264 /* 2265 * Wipe out any old MD RAID (or other) metadata at the end 2266 * of the device. This will also verify that the device is 2267 * as large as we think. Be careful with very small devices. 2268 */ 2269 start = (blocks & ~(rsv - 1)); 2270 if (start > rsv) 2271 start -= rsv; 2272 if (start > 0) 2273 retval = ext2fs_zero_blocks(fs, start, blocks - start, 2274 &ret_blk, NULL); 2275 2276 if (retval) { 2277 com_err(program_name, retval, 2278 _("while zeroing block %u at end of filesystem"), 2279 ret_blk); 2280 } 2281 write_inode_tables(fs, lazy_itable_init, itable_zeroed); 2282 create_root_dir(fs); 2283 create_lost_and_found(fs); 2284 reserve_inodes(fs); 2285 create_bad_block_inode(fs, bb_list); 2286 if (fs->super->s_feature_compat & 2287 EXT2_FEATURE_COMPAT_RESIZE_INODE) { 2288 retval = ext2fs_create_resize_inode(fs); 2289 if (retval) { 2290 com_err("ext2fs_create_resize_inode", retval, 2291 _("while reserving blocks for online resize")); 2292 exit(1); 2293 } 2294 } 2295 } 2296 2297 if (journal_device) { 2298 ext2_filsys jfs; 2299 2300 if (!force) 2301 check_plausibility(journal_device); 2302 check_mount(journal_device, force, _("journal")); 2303 2304 retval = ext2fs_open(journal_device, EXT2_FLAG_RW| 2305 EXT2_FLAG_JOURNAL_DEV_OK, 0, 2306 fs->blocksize, unix_io_manager, &jfs); 2307 if (retval) { 2308 com_err(program_name, retval, 2309 _("while trying to open journal device %s\n"), 2310 journal_device); 2311 exit(1); 2312 } 2313 if (!quiet) { 2314 printf(_("Adding journal to device %s: "), 2315 journal_device); 2316 fflush(stdout); 2317 } 2318 retval = ext2fs_add_journal_device(fs, jfs); 2319 if(retval) { 2320 com_err (program_name, retval, 2321 _("\n\twhile trying to add journal to device %s"), 2322 journal_device); 2323 exit(1); 2324 } 2325 if (!quiet) 2326 printf(_("done\n")); 2327 ext2fs_close(jfs); 2328 free(journal_device); 2329 } else if ((journal_size) || 2330 (fs_param.s_feature_compat & 2331 EXT3_FEATURE_COMPAT_HAS_JOURNAL)) { 2332 journal_blocks = figure_journal_size(journal_size, fs); 2333 2334 if (super_only) { 2335 printf(_("Skipping journal creation in super-only mode\n")); 2336 fs->super->s_journal_inum = EXT2_JOURNAL_INO; 2337 goto no_journal; 2338 } 2339 2340 if (!journal_blocks) { 2341 fs->super->s_feature_compat &= 2342 ~EXT3_FEATURE_COMPAT_HAS_JOURNAL; 2343 goto no_journal; 2344 } 2345 if (!quiet) { 2346 printf(_("Creating journal (%u blocks): "), 2347 journal_blocks); 2348 fflush(stdout); 2349 } 2350 retval = ext2fs_add_journal_inode(fs, journal_blocks, 2351 journal_flags); 2352 if (retval) { 2353 com_err (program_name, retval, 2354 _("\n\twhile trying to create journal")); 2355 exit(1); 2356 } 2357 if (!quiet) 2358 printf(_("done\n")); 2359 } 2360no_journal: 2361 2362 if (!quiet) 2363 printf(_("Writing superblocks and " 2364 "filesystem accounting information: ")); 2365 retval = ext2fs_flush(fs); 2366 if (retval) { 2367 fprintf(stderr, 2368 _("\nWarning, had trouble writing out superblocks.")); 2369 } 2370 if (!quiet) { 2371 printf(_("done\n\n")); 2372 if (!getenv("MKE2FS_SKIP_CHECK_MSG")) 2373 print_check_message(fs); 2374 } 2375 val = ext2fs_close(fs); 2376 remove_error_table(&et_ext2_error_table); 2377 remove_error_table(&et_prof_error_table); 2378 profile_release(profile); 2379 for (i=0; fs_types[i]; i++) 2380 free(fs_types[i]); 2381 free(fs_types); 2382 return (retval || val) ? 1 : 0; 2383} 2384