mke2fs.c revision a25d231a8a153f48984f84f44a6b548b779cf6b1
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#include <stdio.h> 20#include <string.h> 21#include <fcntl.h> 22#include <ctype.h> 23#include <time.h> 24#ifdef __linux__ 25#include <sys/utsname.h> 26#endif 27#ifdef HAVE_GETOPT_H 28#include <getopt.h> 29#else 30extern char *optarg; 31extern int optind; 32#endif 33#ifdef HAVE_UNISTD_H 34#include <unistd.h> 35#endif 36#ifdef HAVE_STDLIB_H 37#include <stdlib.h> 38#endif 39#ifdef HAVE_ERRNO_H 40#include <errno.h> 41#endif 42#ifdef HAVE_MNTENT_H 43#include <mntent.h> 44#endif 45#include <sys/ioctl.h> 46#include <sys/types.h> 47 48#include "ext2fs/ext2_fs.h" 49#include "et/com_err.h" 50#include "uuid/uuid.h" 51#include "e2p/e2p.h" 52#include "ext2fs/ext2fs.h" 53#include "util.h" 54#include "profile.h" 55#include "prof_err.h" 56#include "../version.h" 57#include "nls-enable.h" 58 59#define STRIDE_LENGTH 8 60 61#ifndef __sparc__ 62#define ZAP_BOOTBLOCK 63#endif 64 65extern int isatty(int); 66extern FILE *fpopen(const char *cmd, const char *mode); 67 68const char * program_name = "mke2fs"; 69const char * device_name /* = NULL */; 70 71/* Command line options */ 72int cflag; 73int verbose; 74int quiet; 75int super_only; 76int force; 77int noaction; 78int journal_size; 79int journal_flags; 80char *bad_blocks_filename; 81__u32 fs_stride; 82 83struct ext2_super_block fs_param; 84char *creator_os; 85char *volume_label; 86char *mount_dir; 87char *journal_device; 88int sync_kludge; /* Set using the MKE2FS_SYNC env. option */ 89 90profile_t profile; 91 92int sys_page_size = 4096; 93int linux_version_code = 0; 94 95static void usage(void) 96{ 97 fprintf(stderr, _("Usage: %s [-c|-t|-l filename] [-b block-size] " 98 "[-f fragment-size]\n\t[-i bytes-per-inode] [-I inode-size] " 99 "[-j] [-J journal-options]\n" 100 "\t[-N number-of-inodes] [-m reserved-blocks-percentage] " 101 "[-o creator-os]\n\t[-g blocks-per-group] [-L volume-label] " 102 "[-M last-mounted-directory]\n\t[-O feature[,...]] " 103 "[-r fs-revision] [-R options] [-qvSV]\n\tdevice [blocks-count]\n"), 104 program_name); 105 exit(1); 106} 107 108static int int_log2(int arg) 109{ 110 int l = 0; 111 112 arg >>= 1; 113 while (arg) { 114 l++; 115 arg >>= 1; 116 } 117 return l; 118} 119 120static int int_log10(unsigned int arg) 121{ 122 int l; 123 124 for (l=0; arg ; l++) 125 arg = arg / 10; 126 return l; 127} 128 129static int parse_version_number(const char *s) 130{ 131 int major, minor, rev; 132 char *endptr; 133 const char *cp = s; 134 135 if (!s) 136 return 0; 137 major = strtol(cp, &endptr, 10); 138 if (cp == endptr || *endptr != '.') 139 return 0; 140 cp = endptr + 1; 141 minor = strtol(cp, &endptr, 10); 142 if (cp == endptr || *endptr != '.') 143 return 0; 144 cp = endptr + 1; 145 rev = strtol(cp, &endptr, 10); 146 if (cp == endptr) 147 return 0; 148 return ((((major * 256) + minor) * 256) + rev); 149} 150 151/* 152 * Helper function for read_bb_file and test_disk 153 */ 154static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk) 155{ 156 fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk); 157 return; 158} 159 160/* 161 * Reads the bad blocks list from a file 162 */ 163static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list, 164 const char *bad_blocks_file) 165{ 166 FILE *f; 167 errcode_t retval; 168 169 f = fopen(bad_blocks_file, "r"); 170 if (!f) { 171 com_err("read_bad_blocks_file", errno, 172 _("while trying to open %s"), bad_blocks_file); 173 exit(1); 174 } 175 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block); 176 fclose (f); 177 if (retval) { 178 com_err("ext2fs_read_bb_FILE", retval, 179 _("while reading in list of bad blocks from file")); 180 exit(1); 181 } 182} 183 184/* 185 * Runs the badblocks program to test the disk 186 */ 187static void test_disk(ext2_filsys fs, badblocks_list *bb_list) 188{ 189 FILE *f; 190 errcode_t retval; 191 char buf[1024]; 192 193 sprintf(buf, "badblocks -b %d -X %s%s%s %u", fs->blocksize, 194 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "", 195 fs->device_name, fs->super->s_blocks_count-1); 196 if (verbose) 197 printf(_("Running command: %s\n"), buf); 198 f = popen(buf, "r"); 199 if (!f) { 200 com_err("popen", errno, 201 _("while trying to run '%s'"), buf); 202 exit(1); 203 } 204 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block); 205 pclose(f); 206 if (retval) { 207 com_err("ext2fs_read_bb_FILE", retval, 208 _("while processing list of bad blocks from program")); 209 exit(1); 210 } 211} 212 213static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list) 214{ 215 dgrp_t i; 216 blk_t j; 217 unsigned must_be_good; 218 blk_t blk; 219 badblocks_iterate bb_iter; 220 errcode_t retval; 221 blk_t group_block; 222 int group; 223 int group_bad; 224 225 if (!bb_list) 226 return; 227 228 /* 229 * The primary superblock and group descriptors *must* be 230 * good; if not, abort. 231 */ 232 must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks; 233 for (i = fs->super->s_first_data_block; i <= must_be_good; i++) { 234 if (ext2fs_badblocks_list_test(bb_list, i)) { 235 fprintf(stderr, _("Block %d in primary " 236 "superblock/group descriptor area bad.\n"), i); 237 fprintf(stderr, _("Blocks %u through %u must be good " 238 "in order to build a filesystem.\n"), 239 fs->super->s_first_data_block, must_be_good); 240 fputs(_("Aborting....\n"), stderr); 241 exit(1); 242 } 243 } 244 245 /* 246 * See if any of the bad blocks are showing up in the backup 247 * superblocks and/or group descriptors. If so, issue a 248 * warning and adjust the block counts appropriately. 249 */ 250 group_block = fs->super->s_first_data_block + 251 fs->super->s_blocks_per_group; 252 253 for (i = 1; i < fs->group_desc_count; i++) { 254 group_bad = 0; 255 for (j=0; j < fs->desc_blocks+1; j++) { 256 if (ext2fs_badblocks_list_test(bb_list, 257 group_block + j)) { 258 if (!group_bad) 259 fprintf(stderr, 260_("Warning: the backup superblock/group descriptors at block %u contain\n" 261" bad blocks.\n\n"), 262 group_block); 263 group_bad++; 264 group = ext2fs_group_of_blk(fs, group_block+j); 265 fs->group_desc[group].bg_free_blocks_count++; 266 fs->super->s_free_blocks_count++; 267 } 268 } 269 group_block += fs->super->s_blocks_per_group; 270 } 271 272 /* 273 * Mark all the bad blocks as used... 274 */ 275 retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter); 276 if (retval) { 277 com_err("ext2fs_badblocks_list_iterate_begin", retval, 278 _("while marking bad blocks as used")); 279 exit(1); 280 } 281 while (ext2fs_badblocks_list_iterate(bb_iter, &blk)) 282 ext2fs_mark_block_bitmap(fs->block_map, blk); 283 ext2fs_badblocks_list_iterate_end(bb_iter); 284} 285 286/* 287 * These functions implement a generalized progress meter. 288 */ 289struct progress_struct { 290 char format[20]; 291 char backup[80]; 292 __u32 max; 293 int skip_progress; 294}; 295 296static void progress_init(struct progress_struct *progress, 297 const char *label,__u32 max) 298{ 299 int i; 300 301 memset(progress, 0, sizeof(struct progress_struct)); 302 if (quiet) 303 return; 304 305 /* 306 * Figure out how many digits we need 307 */ 308 i = int_log10(max); 309 sprintf(progress->format, "%%%dd/%%%dld", i, i); 310 memset(progress->backup, '\b', sizeof(progress->backup)-1); 311 progress->backup[sizeof(progress->backup)-1] = 0; 312 if ((2*i)+1 < (int) sizeof(progress->backup)) 313 progress->backup[(2*i)+1] = 0; 314 progress->max = max; 315 316 progress->skip_progress = 0; 317 if (getenv("MKE2FS_SKIP_PROGRESS")) 318 progress->skip_progress++; 319 320 fputs(label, stdout); 321 fflush(stdout); 322} 323 324static void progress_update(struct progress_struct *progress, __u32 val) 325{ 326 if ((progress->format[0] == 0) || progress->skip_progress) 327 return; 328 printf(progress->format, val, progress->max); 329 fputs(progress->backup, stdout); 330} 331 332static void progress_close(struct progress_struct *progress) 333{ 334 if (progress->format[0] == 0) 335 return; 336 fputs(_("done \n"), stdout); 337} 338 339 340/* 341 * Helper function which zeros out _num_ blocks starting at _blk_. In 342 * case of an error, the details of the error is returned via _ret_blk_ 343 * and _ret_count_ if they are non-NULL pointers. Returns 0 on 344 * success, and an error code on an error. 345 * 346 * As a special case, if the first argument is NULL, then it will 347 * attempt to free the static zeroizing buffer. (This is to keep 348 * programs that check for memory leaks happy.) 349 */ 350static errcode_t zero_blocks(ext2_filsys fs, blk_t blk, int num, 351 struct progress_struct *progress, 352 blk_t *ret_blk, int *ret_count) 353{ 354 int j, count, next_update, next_update_incr; 355 static char *buf; 356 errcode_t retval; 357 358 /* If fs is null, clean up the static buffer and return */ 359 if (!fs) { 360 if (buf) { 361 free(buf); 362 buf = 0; 363 } 364 return 0; 365 } 366 /* Allocate the zeroizing buffer if necessary */ 367 if (!buf) { 368 buf = malloc(fs->blocksize * STRIDE_LENGTH); 369 if (!buf) { 370 com_err("malloc", ENOMEM, 371 _("while allocating zeroizing buffer")); 372 exit(1); 373 } 374 memset(buf, 0, fs->blocksize * STRIDE_LENGTH); 375 } 376 /* OK, do the write loop */ 377 next_update = 0; 378 next_update_incr = num / 100; 379 if (next_update_incr < 1) 380 next_update_incr = 1; 381 for (j=0; j < num; j += STRIDE_LENGTH, blk += STRIDE_LENGTH) { 382 count = num - j; 383 if (count > STRIDE_LENGTH) 384 count = STRIDE_LENGTH; 385 retval = io_channel_write_blk(fs->io, blk, count, buf); 386 if (retval) { 387 if (ret_count) 388 *ret_count = count; 389 if (ret_blk) 390 *ret_blk = blk; 391 return retval; 392 } 393 if (progress && j > next_update) { 394 next_update += num / 100; 395 progress_update(progress, blk); 396 } 397 } 398 return 0; 399} 400 401static void write_inode_tables(ext2_filsys fs) 402{ 403 errcode_t retval; 404 blk_t blk; 405 dgrp_t i; 406 int num; 407 struct progress_struct progress; 408 int lazy_flag = 0; 409 410 if (quiet) 411 memset(&progress, 0, sizeof(progress)); 412 else 413 progress_init(&progress, _("Writing inode tables: "), 414 fs->group_desc_count); 415 416 if (EXT2_HAS_COMPAT_FEATURE(fs->super, 417 EXT2_FEATURE_COMPAT_LAZY_BG)) 418 lazy_flag = 1; 419 420 for (i = 0; i < fs->group_desc_count; i++) { 421 progress_update(&progress, i); 422 423 blk = fs->group_desc[i].bg_inode_table; 424 num = fs->inode_blocks_per_group; 425 426 if (!(lazy_flag && 427 (fs->group_desc[i].bg_flags & EXT2_BG_INODE_UNINIT))) { 428 retval = zero_blocks(fs, blk, num, 0, &blk, &num); 429 if (retval) { 430 fprintf(stderr, _("\nCould not write %d " 431 "blocks in inode table starting at %u: %s\n"), 432 num, blk, error_message(retval)); 433 exit(1); 434 } 435 } 436 if (sync_kludge) { 437 if (sync_kludge == 1) 438 sync(); 439 else if ((i % sync_kludge) == 0) 440 sync(); 441 } 442 } 443 zero_blocks(0, 0, 0, 0, 0, 0); 444 progress_close(&progress); 445} 446 447static void setup_lazy_bg(ext2_filsys fs) 448{ 449 dgrp_t i; 450 int blks; 451 struct ext2_super_block *sb = fs->super; 452 struct ext2_group_desc *bg = fs->group_desc; 453 454 if (EXT2_HAS_COMPAT_FEATURE(fs->super, 455 EXT2_FEATURE_COMPAT_LAZY_BG)) { 456 for (i = 0; i < fs->group_desc_count; i++, bg++) { 457 if ((i == 0) || 458 (i == fs->group_desc_count-1)) 459 continue; 460 if (bg->bg_free_inodes_count == 461 sb->s_inodes_per_group) { 462 bg->bg_free_inodes_count = 0; 463 bg->bg_flags |= EXT2_BG_INODE_UNINIT; 464 sb->s_free_inodes_count -= 465 sb->s_inodes_per_group; 466 } 467 blks = ext2fs_super_and_bgd_loc(fs, i, 0, 0, 0, 0); 468 if (bg->bg_free_blocks_count == blks) { 469 bg->bg_free_blocks_count = 0; 470 bg->bg_flags |= EXT2_BG_BLOCK_UNINIT; 471 sb->s_free_blocks_count -= blks; 472 } 473 } 474 } 475} 476 477 478static void create_root_dir(ext2_filsys fs) 479{ 480 errcode_t retval; 481 struct ext2_inode inode; 482 483 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0); 484 if (retval) { 485 com_err("ext2fs_mkdir", retval, _("while creating root dir")); 486 exit(1); 487 } 488 if (geteuid()) { 489 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode); 490 if (retval) { 491 com_err("ext2fs_read_inode", retval, 492 _("while reading root inode")); 493 exit(1); 494 } 495 inode.i_uid = getuid(); 496 if (inode.i_uid) 497 inode.i_gid = getgid(); 498 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode); 499 if (retval) { 500 com_err("ext2fs_write_inode", retval, 501 _("while setting root inode ownership")); 502 exit(1); 503 } 504 } 505} 506 507static void create_lost_and_found(ext2_filsys fs) 508{ 509 errcode_t retval; 510 ext2_ino_t ino; 511 const char *name = "lost+found"; 512 int i; 513 int lpf_size = 0; 514 515 fs->umask = 077; 516 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name); 517 if (retval) { 518 com_err("ext2fs_mkdir", retval, 519 _("while creating /lost+found")); 520 exit(1); 521 } 522 523 retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino); 524 if (retval) { 525 com_err("ext2_lookup", retval, 526 _("while looking up /lost+found")); 527 exit(1); 528 } 529 530 for (i=1; i < EXT2_NDIR_BLOCKS; i++) { 531 if ((lpf_size += fs->blocksize) >= 16*1024) 532 break; 533 retval = ext2fs_expand_dir(fs, ino); 534 if (retval) { 535 com_err("ext2fs_expand_dir", retval, 536 _("while expanding /lost+found")); 537 exit(1); 538 } 539 } 540} 541 542static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list) 543{ 544 errcode_t retval; 545 546 ext2fs_mark_inode_bitmap(fs->inode_map, EXT2_BAD_INO); 547 fs->group_desc[0].bg_free_inodes_count--; 548 fs->super->s_free_inodes_count--; 549 retval = ext2fs_update_bb_inode(fs, bb_list); 550 if (retval) { 551 com_err("ext2fs_update_bb_inode", retval, 552 _("while setting bad block inode")); 553 exit(1); 554 } 555 556} 557 558static void reserve_inodes(ext2_filsys fs) 559{ 560 ext2_ino_t i; 561 int group; 562 563 for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++) { 564 ext2fs_mark_inode_bitmap(fs->inode_map, i); 565 group = ext2fs_group_of_ino(fs, i); 566 fs->group_desc[group].bg_free_inodes_count--; 567 fs->super->s_free_inodes_count--; 568 } 569 ext2fs_mark_ib_dirty(fs); 570} 571 572#define BSD_DISKMAGIC (0x82564557UL) /* The disk magic number */ 573#define BSD_MAGICDISK (0x57455682UL) /* The disk magic number reversed */ 574#define BSD_LABEL_OFFSET 64 575 576static void zap_sector(ext2_filsys fs, int sect, int nsect) 577{ 578 char *buf; 579 int retval; 580 unsigned int *magic; 581 582 buf = malloc(512*nsect); 583 if (!buf) { 584 printf(_("Out of memory erasing sectors %d-%d\n"), 585 sect, sect + nsect - 1); 586 exit(1); 587 } 588 589 if (sect == 0) { 590 /* Check for a BSD disklabel, and don't erase it if so */ 591 retval = io_channel_read_blk(fs->io, 0, -512, buf); 592 if (retval) 593 fprintf(stderr, 594 _("Warning: could not read block 0: %s\n"), 595 error_message(retval)); 596 else { 597 magic = (unsigned int *) (buf + BSD_LABEL_OFFSET); 598 if ((*magic == BSD_DISKMAGIC) || 599 (*magic == BSD_MAGICDISK)) 600 return; 601 } 602 } 603 604 memset(buf, 0, 512*nsect); 605 io_channel_set_blksize(fs->io, 512); 606 retval = io_channel_write_blk(fs->io, sect, -512*nsect, buf); 607 io_channel_set_blksize(fs->io, fs->blocksize); 608 free(buf); 609 if (retval) 610 fprintf(stderr, _("Warning: could not erase sector %d: %s\n"), 611 sect, error_message(retval)); 612} 613 614static void create_journal_dev(ext2_filsys fs) 615{ 616 struct progress_struct progress; 617 errcode_t retval; 618 char *buf; 619 blk_t blk; 620 int count; 621 622 retval = ext2fs_create_journal_superblock(fs, 623 fs->super->s_blocks_count, 0, &buf); 624 if (retval) { 625 com_err("create_journal_dev", retval, 626 _("while initializing journal superblock")); 627 exit(1); 628 } 629 if (quiet) 630 memset(&progress, 0, sizeof(progress)); 631 else 632 progress_init(&progress, _("Zeroing journal device: "), 633 fs->super->s_blocks_count); 634 635 retval = zero_blocks(fs, 0, fs->super->s_blocks_count, 636 &progress, &blk, &count); 637 if (retval) { 638 com_err("create_journal_dev", retval, 639 _("while zeroing journal device (block %u, count %d)"), 640 blk, count); 641 exit(1); 642 } 643 zero_blocks(0, 0, 0, 0, 0, 0); 644 645 retval = io_channel_write_blk(fs->io, 646 fs->super->s_first_data_block+1, 647 1, buf); 648 if (retval) { 649 com_err("create_journal_dev", retval, 650 _("while writing journal superblock")); 651 exit(1); 652 } 653 progress_close(&progress); 654} 655 656static void show_stats(ext2_filsys fs) 657{ 658 struct ext2_super_block *s = fs->super; 659 char buf[80]; 660 char *os; 661 blk_t group_block; 662 dgrp_t i; 663 int need, col_left; 664 665 if (fs_param.s_blocks_count != s->s_blocks_count) 666 fprintf(stderr, _("warning: %u blocks unused.\n\n"), 667 fs_param.s_blocks_count - s->s_blocks_count); 668 669 memset(buf, 0, sizeof(buf)); 670 strncpy(buf, s->s_volume_name, sizeof(s->s_volume_name)); 671 printf(_("Filesystem label=%s\n"), buf); 672 fputs(_("OS type: "), stdout); 673 os = e2p_os2string(fs->super->s_creator_os); 674 fputs(os, stdout); 675 free(os); 676 printf("\n"); 677 printf(_("Block size=%u (log=%u)\n"), fs->blocksize, 678 s->s_log_block_size); 679 printf(_("Fragment size=%u (log=%u)\n"), fs->fragsize, 680 s->s_log_frag_size); 681 printf(_("%u inodes, %u blocks\n"), s->s_inodes_count, 682 s->s_blocks_count); 683 printf(_("%u blocks (%2.2f%%) reserved for the super user\n"), 684 s->s_r_blocks_count, 685 100.0 * s->s_r_blocks_count / s->s_blocks_count); 686 printf(_("First data block=%u\n"), s->s_first_data_block); 687 if (s->s_reserved_gdt_blocks) 688 printf(_("Maximum filesystem blocks=%lu\n"), 689 (s->s_reserved_gdt_blocks + fs->desc_blocks) * 690 (fs->blocksize / sizeof(struct ext2_group_desc)) * 691 s->s_blocks_per_group); 692 if (fs->group_desc_count > 1) 693 printf(_("%u block groups\n"), fs->group_desc_count); 694 else 695 printf(_("%u block group\n"), fs->group_desc_count); 696 printf(_("%u blocks per group, %u fragments per group\n"), 697 s->s_blocks_per_group, s->s_frags_per_group); 698 printf(_("%u inodes per group\n"), s->s_inodes_per_group); 699 700 if (fs->group_desc_count == 1) { 701 printf("\n"); 702 return; 703 } 704 705 printf(_("Superblock backups stored on blocks: ")); 706 group_block = s->s_first_data_block; 707 col_left = 0; 708 for (i = 1; i < fs->group_desc_count; i++) { 709 group_block += s->s_blocks_per_group; 710 if (!ext2fs_bg_has_super(fs, i)) 711 continue; 712 if (i != 1) 713 printf(", "); 714 need = int_log10(group_block) + 2; 715 if (need > col_left) { 716 printf("\n\t"); 717 col_left = 72; 718 } 719 col_left -= need; 720 printf("%u", group_block); 721 } 722 printf("\n\n"); 723} 724 725/* 726 * Set the S_CREATOR_OS field. Return true if OS is known, 727 * otherwise, 0. 728 */ 729static int set_os(struct ext2_super_block *sb, char *os) 730{ 731 if (isdigit (*os)) 732 sb->s_creator_os = atoi (os); 733 else if (strcasecmp(os, "linux") == 0) 734 sb->s_creator_os = EXT2_OS_LINUX; 735 else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0) 736 sb->s_creator_os = EXT2_OS_HURD; 737 else if (strcasecmp(os, "masix") == 0) 738 sb->s_creator_os = EXT2_OS_MASIX; 739 else if (strcasecmp(os, "freebsd") == 0) 740 sb->s_creator_os = EXT2_OS_FREEBSD; 741 else if (strcasecmp(os, "lites") == 0) 742 sb->s_creator_os = EXT2_OS_LITES; 743 else 744 return 0; 745 return 1; 746} 747 748#define PATH_SET "PATH=/sbin" 749 750static void parse_extended_opts(struct ext2_super_block *param, 751 const char *opts) 752{ 753 char *buf, *token, *next, *p, *arg; 754 int len; 755 int r_usage = 0; 756 757 len = strlen(opts); 758 buf = malloc(len+1); 759 if (!buf) { 760 fprintf(stderr, 761 _("Couldn't allocate memory to parse options!\n")); 762 exit(1); 763 } 764 strcpy(buf, opts); 765 for (token = buf; token && *token; token = next) { 766 p = strchr(token, ','); 767 next = 0; 768 if (p) { 769 *p = 0; 770 next = p+1; 771 } 772 arg = strchr(token, '='); 773 if (arg) { 774 *arg = 0; 775 arg++; 776 } 777 if (strcmp(token, "stride") == 0) { 778 if (!arg) { 779 r_usage++; 780 continue; 781 } 782 fs_stride = strtoul(arg, &p, 0); 783 if (*p || (fs_stride == 0)) { 784 fprintf(stderr, 785 _("Invalid stride parameter: %s\n"), 786 arg); 787 r_usage++; 788 continue; 789 } 790 } else if (!strcmp(token, "resize")) { 791 unsigned long resize, bpg, rsv_groups; 792 unsigned long group_desc_count, desc_blocks; 793 unsigned int gdpb, blocksize; 794 int rsv_gdb; 795 796 if (!arg) { 797 r_usage++; 798 continue; 799 } 800 801 resize = parse_num_blocks(arg, 802 param->s_log_block_size); 803 804 if (resize == 0) { 805 fprintf(stderr, 806 _("Invalid resize parameter: %s\n"), 807 arg); 808 r_usage++; 809 continue; 810 } 811 if (resize <= param->s_blocks_count) { 812 fprintf(stderr, 813 _("The resize maximum must be greater " 814 "than the filesystem size.\n")); 815 r_usage++; 816 continue; 817 } 818 819 blocksize = EXT2_BLOCK_SIZE(param); 820 bpg = param->s_blocks_per_group; 821 if (!bpg) 822 bpg = blocksize * 8; 823 gdpb = blocksize / sizeof(struct ext2_group_desc); 824 group_desc_count = 825 ext2fs_div_ceil(param->s_blocks_count, bpg); 826 desc_blocks = (group_desc_count + 827 gdpb - 1) / gdpb; 828 rsv_groups = ext2fs_div_ceil(resize, bpg); 829 rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) - 830 desc_blocks; 831 if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param)) 832 rsv_gdb = EXT2_ADDR_PER_BLOCK(param); 833 834 if (rsv_gdb > 0) { 835 if (param->s_rev_level == EXT2_GOOD_OLD_REV) { 836 fprintf(stderr, 837 _("On-line resizing not supported with revision 0 filesystems\n")); 838 exit(1); 839 } 840 param->s_feature_compat |= 841 EXT2_FEATURE_COMPAT_RESIZE_INODE; 842 843 param->s_reserved_gdt_blocks = rsv_gdb; 844 } 845 } else 846 r_usage++; 847 } 848 if (r_usage) { 849 fprintf(stderr, _("\nBad options specified.\n\n" 850 "Extended options are separated by commas, " 851 "and may take an argument which\n" 852 "\tis set off by an equals ('=') sign.\n\n" 853 "Valid extended options are:\n" 854 "\tstride=<stride length in blocks>\n" 855 "\tresize=<resize maximum size in blocks>\n\n")); 856 exit(1); 857 } 858} 859 860static __u32 ok_features[3] = { 861 EXT3_FEATURE_COMPAT_HAS_JOURNAL | 862 EXT2_FEATURE_COMPAT_RESIZE_INODE | 863 EXT2_FEATURE_COMPAT_DIR_INDEX | 864 EXT2_FEATURE_COMPAT_LAZY_BG, /* Compat */ 865 EXT2_FEATURE_INCOMPAT_FILETYPE| /* Incompat */ 866 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV| 867 EXT2_FEATURE_INCOMPAT_META_BG, 868 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER /* R/O compat */ 869}; 870 871 872static void syntax_err_report(const char *filename, long err, int line_num) 873{ 874 fprintf(stderr, 875 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"), 876 filename, line_num, error_message(err)); 877 exit(1); 878} 879 880static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 }; 881 882static void edit_feature(const char *str, __u32 *compat_array) 883{ 884 if (!str) 885 return; 886 887 if (e2p_edit_feature(str, compat_array, ok_features)) { 888 fprintf(stderr, _("Invalid filesystem option set: %s\n"), 889 str); 890 exit(1); 891 } 892} 893 894static void PRS(int argc, char *argv[]) 895{ 896 int b, c; 897 int size; 898 char *tmp, *tmp2; 899 int blocksize = 0; 900 int inode_ratio = 0; 901 int inode_size = 0; 902 double reserved_ratio = 5.0; 903 int sector_size = 0; 904 int show_version_only = 0; 905 __u64 num_inodes = 0; /* u64 to catch too-large input */ 906 errcode_t retval; 907 char * oldpath = getenv("PATH"); 908 char * extended_opts = 0; 909 const char * fs_type = 0; 910 blk_t dev_size; 911#ifdef __linux__ 912 struct utsname ut; 913#endif 914 long sysval; 915 int s_opt = -1, r_opt = -1; 916 char *fs_features = 0; 917 int use_bsize; 918 char *newpath; 919 int pathlen = sizeof(PATH_SET) + 1; 920 921 if (oldpath) 922 pathlen += strlen(oldpath); 923 newpath = malloc(pathlen); 924 strcpy(newpath, PATH_SET); 925 926 /* Update our PATH to include /sbin */ 927 if (oldpath) { 928 strcat (newpath, ":"); 929 strcat (newpath, oldpath); 930 } 931 putenv (newpath); 932 933 tmp = getenv("MKE2FS_SYNC"); 934 if (tmp) 935 sync_kludge = atoi(tmp); 936 937 /* Determine the system page size if possible */ 938#ifdef HAVE_SYSCONF 939#if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE)) 940#define _SC_PAGESIZE _SC_PAGE_SIZE 941#endif 942#ifdef _SC_PAGESIZE 943 sysval = sysconf(_SC_PAGESIZE); 944 if (sysval > 0) 945 sys_page_size = sysval; 946#endif /* _SC_PAGESIZE */ 947#endif /* HAVE_SYSCONF */ 948 949 if ((tmp = getenv("MKE2FS_CONFIG")) != NULL) 950 config_fn[0] = tmp; 951 profile_set_syntax_err_cb(syntax_err_report); 952 profile_init(config_fn, &profile); 953 954 setbuf(stdout, NULL); 955 setbuf(stderr, NULL); 956 add_error_table(&et_ext2_error_table); 957 add_error_table(&et_prof_error_table); 958 memset(&fs_param, 0, sizeof(struct ext2_super_block)); 959 fs_param.s_rev_level = 1; /* Create revision 1 filesystems now */ 960 961#ifdef __linux__ 962 if (uname(&ut)) { 963 perror("uname"); 964 exit(1); 965 } 966 linux_version_code = parse_version_number(ut.release); 967 if (linux_version_code && linux_version_code < (2*65536 + 2*256)) 968 fs_param.s_rev_level = 0; 969#endif 970 971 if (argc && *argv) { 972 program_name = get_progname(*argv); 973 974 /* If called as mkfs.ext3, create a journal inode */ 975 if (!strcmp(program_name, "mkfs.ext3")) 976 journal_size = -1; 977 } 978 979 while ((c = getopt (argc, argv, 980 "b:cf:g:i:jl:m:no:qr:s:tvE:FI:J:L:M:N:O:R:ST:V")) != EOF) { 981 switch (c) { 982 case 'b': 983 blocksize = strtol(optarg, &tmp, 0); 984 b = (blocksize > 0) ? blocksize : -blocksize; 985 if (b < EXT2_MIN_BLOCK_SIZE || 986 b > EXT2_MAX_BLOCK_SIZE || *tmp) { 987 com_err(program_name, 0, 988 _("invalid block size - %s"), optarg); 989 exit(1); 990 } 991 if (blocksize > 4096) 992 fprintf(stderr, _("Warning: blocksize %d not " 993 "usable on most systems.\n"), 994 blocksize); 995 if (blocksize > 0) 996 fs_param.s_log_block_size = 997 int_log2(blocksize >> 998 EXT2_MIN_BLOCK_LOG_SIZE); 999 break; 1000 case 'c': /* Check for bad blocks */ 1001 case 't': /* deprecated */ 1002 cflag++; 1003 break; 1004 case 'f': 1005 size = strtoul(optarg, &tmp, 0); 1006 if (size < EXT2_MIN_BLOCK_SIZE || 1007 size > EXT2_MAX_BLOCK_SIZE || *tmp) { 1008 com_err(program_name, 0, 1009 _("invalid fragment size - %s"), 1010 optarg); 1011 exit(1); 1012 } 1013 fs_param.s_log_frag_size = 1014 int_log2(size >> EXT2_MIN_BLOCK_LOG_SIZE); 1015 fprintf(stderr, _("Warning: fragments not supported. " 1016 "Ignoring -f option\n")); 1017 break; 1018 case 'g': 1019 fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0); 1020 if (*tmp) { 1021 com_err(program_name, 0, 1022 _("Illegal number for blocks per group")); 1023 exit(1); 1024 } 1025 if ((fs_param.s_blocks_per_group % 8) != 0) { 1026 com_err(program_name, 0, 1027 _("blocks per group must be multiple of 8")); 1028 exit(1); 1029 } 1030 break; 1031 case 'i': 1032 inode_ratio = strtoul(optarg, &tmp, 0); 1033 if (inode_ratio < EXT2_MIN_BLOCK_SIZE || 1034 inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024 || 1035 *tmp) { 1036 com_err(program_name, 0, 1037 _("invalid inode ratio %s (min %d/max %d)"), 1038 optarg, EXT2_MIN_BLOCK_SIZE, 1039 EXT2_MAX_BLOCK_SIZE); 1040 exit(1); 1041 } 1042 break; 1043 case 'J': 1044 parse_journal_opts(optarg); 1045 break; 1046 case 'j': 1047 if (!journal_size) 1048 journal_size = -1; 1049 break; 1050 case 'l': 1051 bad_blocks_filename = malloc(strlen(optarg)+1); 1052 if (!bad_blocks_filename) { 1053 com_err(program_name, ENOMEM, 1054 _("in malloc for bad_blocks_filename")); 1055 exit(1); 1056 } 1057 strcpy(bad_blocks_filename, optarg); 1058 break; 1059 case 'm': 1060 reserved_ratio = strtod(optarg, &tmp); 1061 if (reserved_ratio > 50 || *tmp) { 1062 com_err(program_name, 0, 1063 _("invalid reserved blocks percent - %s"), 1064 optarg); 1065 exit(1); 1066 } 1067 break; 1068 case 'n': 1069 noaction++; 1070 break; 1071 case 'o': 1072 creator_os = optarg; 1073 break; 1074 case 'q': 1075 quiet = 1; 1076 break; 1077 case 'r': 1078 r_opt = strtoul(optarg, &tmp, 0); 1079 if (*tmp) { 1080 com_err(program_name, 0, 1081 _("bad revision level - %s"), optarg); 1082 exit(1); 1083 } 1084 fs_param.s_rev_level = r_opt; 1085 break; 1086 case 's': /* deprecated */ 1087 s_opt = atoi(optarg); 1088 break; 1089 case 'I': 1090 inode_size = strtoul(optarg, &tmp, 0); 1091 if (*tmp) { 1092 com_err(program_name, 0, 1093 _("invalid inode size - %s"), optarg); 1094 exit(1); 1095 } 1096 break; 1097 case 'v': 1098 verbose = 1; 1099 break; 1100 case 'F': 1101 force++; 1102 break; 1103 case 'L': 1104 volume_label = optarg; 1105 break; 1106 case 'M': 1107 mount_dir = optarg; 1108 break; 1109 case 'N': 1110 num_inodes = strtoul(optarg, &tmp, 0); 1111 if (*tmp) { 1112 com_err(program_name, 0, 1113 _("bad num inodes - %s"), optarg); 1114 exit(1); 1115 } 1116 break; 1117 case 'O': 1118 fs_features = optarg; 1119 break; 1120 case 'E': 1121 case 'R': 1122 extended_opts = optarg; 1123 break; 1124 case 'S': 1125 super_only = 1; 1126 break; 1127 case 'T': 1128 fs_type = optarg; 1129 break; 1130 case 'V': 1131 /* Print version number and exit */ 1132 show_version_only++; 1133 break; 1134 default: 1135 usage(); 1136 } 1137 } 1138 if ((optind == argc) && !show_version_only) 1139 usage(); 1140 device_name = argv[optind++]; 1141 1142 if (!quiet || show_version_only) 1143 fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION, 1144 E2FSPROGS_DATE); 1145 1146 if (show_version_only) { 1147 fprintf(stderr, _("\tUsing %s\n"), 1148 error_message(EXT2_ET_BASE)); 1149 exit(0); 1150 } 1151 1152 /* 1153 * If there's no blocksize specified and there is a journal 1154 * device, use it to figure out the blocksize 1155 */ 1156 if (blocksize <= 0 && journal_device) { 1157 ext2_filsys jfs; 1158 io_manager io_ptr; 1159 1160#ifdef CONFIG_TESTIO_DEBUG 1161 io_ptr = test_io_manager; 1162 test_io_backing_manager = unix_io_manager; 1163#else 1164 io_ptr = unix_io_manager; 1165#endif 1166 retval = ext2fs_open(journal_device, 1167 EXT2_FLAG_JOURNAL_DEV_OK, 0, 1168 0, io_ptr, &jfs); 1169 if (retval) { 1170 com_err(program_name, retval, 1171 _("while trying to open journal device %s\n"), 1172 journal_device); 1173 exit(1); 1174 } 1175 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) { 1176 com_err(program_name, 0, 1177 _("Journal dev blocksize (%d) smaller than " 1178 "minimum blocksize %d\n"), jfs->blocksize, 1179 -blocksize); 1180 exit(1); 1181 } 1182 blocksize = jfs->blocksize; 1183 fs_param.s_log_block_size = 1184 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE); 1185 ext2fs_close(jfs); 1186 } 1187 1188 if (blocksize > sys_page_size) { 1189 if (!force) { 1190 com_err(program_name, 0, 1191 _("%d-byte blocks too big for system (max %d)"), 1192 blocksize, sys_page_size); 1193 proceed_question(); 1194 } 1195 fprintf(stderr, _("Warning: %d-byte blocks too big for system " 1196 "(max %d), forced to continue\n"), 1197 blocksize, sys_page_size); 1198 } 1199 if (optind < argc) { 1200 fs_param.s_blocks_count = parse_num_blocks(argv[optind++], 1201 fs_param.s_log_block_size); 1202 if (!fs_param.s_blocks_count) { 1203 com_err(program_name, 0, _("invalid blocks count - %s"), 1204 argv[optind - 1]); 1205 exit(1); 1206 } 1207 } 1208 if (optind < argc) 1209 usage(); 1210 1211 if (!force) 1212 check_plausibility(device_name); 1213 check_mount(device_name, force, _("filesystem")); 1214 1215 fs_param.s_log_frag_size = fs_param.s_log_block_size; 1216 1217 if (noaction && fs_param.s_blocks_count) { 1218 dev_size = fs_param.s_blocks_count; 1219 retval = 0; 1220 } else { 1221 retry: 1222 retval = ext2fs_get_device_size(device_name, 1223 EXT2_BLOCK_SIZE(&fs_param), 1224 &dev_size); 1225 if ((retval == EFBIG) && 1226 (blocksize == 0) && 1227 (fs_param.s_log_block_size == 0)) { 1228 fs_param.s_log_block_size = 2; 1229 blocksize = 4096; 1230 goto retry; 1231 } 1232 } 1233 1234 if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) { 1235 com_err(program_name, retval, 1236 _("while trying to determine filesystem size")); 1237 exit(1); 1238 } 1239 if (!fs_param.s_blocks_count) { 1240 if (retval == EXT2_ET_UNIMPLEMENTED) { 1241 com_err(program_name, 0, 1242 _("Couldn't determine device size; you " 1243 "must specify\nthe size of the " 1244 "filesystem\n")); 1245 exit(1); 1246 } else { 1247 if (dev_size == 0) { 1248 com_err(program_name, 0, 1249 _("Device size reported to be zero. " 1250 "Invalid partition specified, or\n\t" 1251 "partition table wasn't reread " 1252 "after running fdisk, due to\n\t" 1253 "a modified partition being busy " 1254 "and in use. You may need to reboot\n\t" 1255 "to re-read your partition table.\n" 1256 )); 1257 exit(1); 1258 } 1259 fs_param.s_blocks_count = dev_size; 1260 if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param)) 1261 fs_param.s_blocks_count &= ~((sys_page_size / 1262 EXT2_BLOCK_SIZE(&fs_param))-1); 1263 } 1264 1265 } else if (!force && (fs_param.s_blocks_count > dev_size)) { 1266 com_err(program_name, 0, 1267 _("Filesystem larger than apparent device size.")); 1268 proceed_question(); 1269 } 1270 1271 if (!fs_type) { 1272 int megs = (__u64)fs_param.s_blocks_count * 1273 (EXT2_BLOCK_SIZE(&fs_param) / 1024) / 1024; 1274 1275 if (fs_param.s_feature_incompat & 1276 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) 1277 fs_type = "journal"; 1278 else if (megs <= 3) 1279 fs_type = "floppy"; 1280 else if (megs <= 512) 1281 fs_type = "small"; 1282 else 1283 fs_type = "default"; 1284 } 1285 1286 /* Figure out what features should be enabled */ 1287 1288 tmp = tmp2 = NULL; 1289 if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) { 1290 profile_get_string(profile, "defaults", "base_features", 0, 1291 "sparse_super,filetype,resize_inode,dir_index", 1292 &tmp); 1293 profile_get_string(profile, "fs_types", fs_type, 1294 "base_features", tmp, &tmp2); 1295 edit_feature(tmp2, &fs_param.s_feature_compat); 1296 free(tmp); 1297 free(tmp2); 1298 1299 tmp = tmp2 = NULL; 1300 profile_get_string(profile, "defaults", "default_features", 0, 1301 "", &tmp); 1302 profile_get_string(profile, "fs_types", fs_type, 1303 "default_features", tmp, &tmp2); 1304 } 1305 edit_feature(fs_features ? fs_features : tmp2, 1306 &fs_param.s_feature_compat); 1307 if (tmp) 1308 free(tmp); 1309 if (tmp2) 1310 free(tmp2); 1311 1312 if (r_opt == EXT2_GOOD_OLD_REV && 1313 (fs_param.s_feature_compat || fs_param.s_feature_incompat || 1314 fs_param.s_feature_incompat)) { 1315 fprintf(stderr, _("Filesystem features not supported " 1316 "with revision 0 filesystems\n")); 1317 exit(1); 1318 } 1319 1320 if (s_opt > 0) { 1321 if (r_opt == EXT2_GOOD_OLD_REV) { 1322 fprintf(stderr, _("Sparse superblocks not supported " 1323 "with revision 0 filesystems\n")); 1324 exit(1); 1325 } 1326 fs_param.s_feature_ro_compat |= 1327 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER; 1328 } else if (s_opt == 0) 1329 fs_param.s_feature_ro_compat &= 1330 ~EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER; 1331 1332 if (journal_size != 0) { 1333 if (r_opt == EXT2_GOOD_OLD_REV) { 1334 fprintf(stderr, _("Journals not supported " 1335 "with revision 0 filesystems\n")); 1336 exit(1); 1337 } 1338 fs_param.s_feature_compat |= 1339 EXT3_FEATURE_COMPAT_HAS_JOURNAL; 1340 } 1341 1342 if (fs_param.s_feature_incompat & 1343 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) { 1344 reserved_ratio = 0; 1345 fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV; 1346 fs_param.s_feature_compat = 0; 1347 fs_param.s_feature_ro_compat = 0; 1348 } 1349 1350 /* Set first meta blockgroup via an environment variable */ 1351 /* (this is mostly for debugging purposes) */ 1352 if ((fs_param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) && 1353 ((tmp = getenv("MKE2FS_FIRST_META_BG")))) 1354 fs_param.s_first_meta_bg = atoi(tmp); 1355 1356 /* Get the hardware sector size, if available */ 1357 retval = ext2fs_get_device_sectsize(device_name, §or_size); 1358 if (retval) { 1359 com_err(program_name, retval, 1360 _("while trying to determine hardware sector size")); 1361 exit(1); 1362 } 1363 1364 if ((tmp = getenv("MKE2FS_DEVICE_SECTSIZE")) != NULL) 1365 sector_size = atoi(tmp); 1366 1367 if (blocksize <= 0) { 1368 profile_get_integer(profile, "defaults", "blocksize", 0, 1369 4096, &use_bsize); 1370 profile_get_integer(profile, "fs_types", fs_type, 1371 "blocksize", use_bsize, &use_bsize); 1372 1373 if (use_bsize == -1) { 1374 use_bsize = sys_page_size; 1375 if ((linux_version_code < (2*65536 + 6*256)) && 1376 (use_bsize > 4096)) 1377 use_bsize = 4096; 1378 } 1379 if (sector_size && use_bsize < sector_size) 1380 use_bsize = sector_size; 1381 if ((blocksize < 0) && (use_bsize < (-blocksize))) 1382 use_bsize = -blocksize; 1383 blocksize = use_bsize; 1384 fs_param.s_blocks_count /= blocksize / 1024; 1385 } 1386 1387 if (inode_ratio == 0) { 1388 profile_get_integer(profile, "defaults", "inode_ratio", 0, 1389 8192, &inode_ratio); 1390 profile_get_integer(profile, "fs_types", fs_type, 1391 "inode_ratio", inode_ratio, 1392 &inode_ratio); 1393 1394 if (inode_ratio < blocksize) 1395 inode_ratio = blocksize; 1396 } 1397 1398 fs_param.s_log_frag_size = fs_param.s_log_block_size = 1399 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE); 1400 1401 blocksize = EXT2_BLOCK_SIZE(&fs_param); 1402 1403 if (extended_opts) 1404 parse_extended_opts(&fs_param, extended_opts); 1405 1406 /* Since sparse_super is the default, we would only have a problem 1407 * here if it was explicitly disabled. 1408 */ 1409 if ((fs_param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE) && 1410 !(fs_param.s_feature_ro_compat&EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)) { 1411 com_err(program_name, 0, 1412 _("reserved online resize blocks not supported " 1413 "on non-sparse filesystem")); 1414 exit(1); 1415 } 1416 1417 if (fs_param.s_blocks_per_group) { 1418 if (fs_param.s_blocks_per_group < 256 || 1419 fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) { 1420 com_err(program_name, 0, 1421 _("blocks per group count out of range")); 1422 exit(1); 1423 } 1424 } 1425 1426 if (!force && fs_param.s_blocks_count >= ((unsigned) 1 << 31)) { 1427 com_err(program_name, 0, 1428 _("Filesystem too large. No more than 2**31-1 blocks\n" 1429 "\t (8TB using a blocksize of 4k) are currently supported.")); 1430 exit(1); 1431 } 1432 1433 if ((blocksize > 4096) && 1434 (fs_param.s_feature_compat & EXT3_FEATURE_COMPAT_HAS_JOURNAL)) 1435 fprintf(stderr, _("\nWarning: some 2.4 kernels do not support " 1436 "blocksizes greater than 4096\n\tusing ext3. " 1437 "Use -b 4096 if this is an issue for you.\n\n")); 1438 1439 if (inode_size == 0) { 1440 profile_get_integer(profile, "defaults", "inode_size", NULL, 1441 0, &inode_size); 1442 profile_get_integer(profile, "fs_types", fs_type, 1443 "inode_size", inode_size, 1444 &inode_size); 1445 } 1446 1447 if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) { 1448 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE || 1449 inode_size > EXT2_BLOCK_SIZE(&fs_param) || 1450 inode_size & (inode_size - 1)) { 1451 com_err(program_name, 0, 1452 _("invalid inode size %d (min %d/max %d)"), 1453 inode_size, EXT2_GOOD_OLD_INODE_SIZE, 1454 blocksize); 1455 exit(1); 1456 } 1457 if (inode_size != EXT2_GOOD_OLD_INODE_SIZE) 1458 fprintf(stderr, _("Warning: %d-byte inodes not usable " 1459 "on older systems\n"), 1460 inode_size); 1461 fs_param.s_inode_size = inode_size; 1462 } 1463 1464 /* Make sure number of inodes specified will fit in 32 bits */ 1465 if (num_inodes == 0) { 1466 __u64 n; 1467 n = (__u64) fs_param.s_blocks_count * blocksize / inode_ratio; 1468 if (n > ~0U) { 1469 com_err(program_name, 0, 1470 _("too many inodes (%llu), raise inode ratio?"), n); 1471 exit(1); 1472 } 1473 } else if (num_inodes > ~0U) { 1474 com_err(program_name, 0, 1475 _("too many inodes (%llu), specify < 2^32 inodes"), 1476 (__u64)num_inodes); 1477 exit(1); 1478 } 1479 /* 1480 * Calculate number of inodes based on the inode ratio 1481 */ 1482 fs_param.s_inodes_count = num_inodes ? num_inodes : 1483 ((__u64) fs_param.s_blocks_count * blocksize) 1484 / inode_ratio; 1485 1486 /* 1487 * Calculate number of blocks to reserve 1488 */ 1489 fs_param.s_r_blocks_count = e2p_percent(reserved_ratio, 1490 fs_param.s_blocks_count); 1491} 1492 1493int main (int argc, char *argv[]) 1494{ 1495 errcode_t retval = 0; 1496 ext2_filsys fs; 1497 badblocks_list bb_list = 0; 1498 int journal_blocks; 1499 unsigned int i; 1500 int val; 1501 io_manager io_ptr; 1502 1503#ifdef ENABLE_NLS 1504 setlocale(LC_MESSAGES, ""); 1505 setlocale(LC_CTYPE, ""); 1506 bindtextdomain(NLS_CAT_NAME, LOCALEDIR); 1507 textdomain(NLS_CAT_NAME); 1508#endif 1509 PRS(argc, argv); 1510 1511#ifdef CONFIG_TESTIO_DEBUG 1512 io_ptr = test_io_manager; 1513 test_io_backing_manager = unix_io_manager; 1514#else 1515 io_ptr = unix_io_manager; 1516#endif 1517 1518 /* 1519 * Initialize the superblock.... 1520 */ 1521 retval = ext2fs_initialize(device_name, EXT2_FLAG_EXCLUSIVE, &fs_param, 1522 io_ptr, &fs); 1523 if (retval) { 1524 com_err(device_name, retval, _("while setting up superblock")); 1525 exit(1); 1526 } 1527 1528 /* 1529 * Wipe out the old on-disk superblock 1530 */ 1531 if (!noaction) 1532 zap_sector(fs, 2, 6); 1533 1534 /* 1535 * Generate a UUID for it... 1536 */ 1537 uuid_generate(fs->super->s_uuid); 1538 1539 /* 1540 * Initialize the directory index variables 1541 */ 1542 fs->super->s_def_hash_version = EXT2_HASH_TEA; 1543 uuid_generate((unsigned char *) fs->super->s_hash_seed); 1544 1545 /* 1546 * Add "jitter" to the superblock's check interval so that we 1547 * don't check all the filesystems at the same time. We use a 1548 * kludgy hack of using the UUID to derive a random jitter value. 1549 */ 1550 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++) 1551 val += fs->super->s_uuid[i]; 1552 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT; 1553 1554 /* 1555 * Override the creator OS, if applicable 1556 */ 1557 if (creator_os && !set_os(fs->super, creator_os)) { 1558 com_err (program_name, 0, _("unknown os - %s"), creator_os); 1559 exit(1); 1560 } 1561 1562 /* 1563 * For the Hurd, we will turn off filetype since it doesn't 1564 * support it. 1565 */ 1566 if (fs->super->s_creator_os == EXT2_OS_HURD) 1567 fs->super->s_feature_incompat &= 1568 ~EXT2_FEATURE_INCOMPAT_FILETYPE; 1569 1570 /* 1571 * Set the volume label... 1572 */ 1573 if (volume_label) { 1574 memset(fs->super->s_volume_name, 0, 1575 sizeof(fs->super->s_volume_name)); 1576 strncpy(fs->super->s_volume_name, volume_label, 1577 sizeof(fs->super->s_volume_name)); 1578 } 1579 1580 /* 1581 * Set the last mount directory 1582 */ 1583 if (mount_dir) { 1584 memset(fs->super->s_last_mounted, 0, 1585 sizeof(fs->super->s_last_mounted)); 1586 strncpy(fs->super->s_last_mounted, mount_dir, 1587 sizeof(fs->super->s_last_mounted)); 1588 } 1589 1590 if (!quiet || noaction) 1591 show_stats(fs); 1592 1593 if (noaction) 1594 exit(0); 1595 1596 if (fs->super->s_feature_incompat & 1597 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) { 1598 create_journal_dev(fs); 1599 exit(ext2fs_close(fs) ? 1 : 0); 1600 } 1601 1602 if (bad_blocks_filename) 1603 read_bb_file(fs, &bb_list, bad_blocks_filename); 1604 if (cflag) 1605 test_disk(fs, &bb_list); 1606 1607 handle_bad_blocks(fs, bb_list); 1608 fs->stride = fs_stride; 1609 retval = ext2fs_allocate_tables(fs); 1610 if (retval) { 1611 com_err(program_name, retval, 1612 _("while trying to allocate filesystem tables")); 1613 exit(1); 1614 } 1615 if (super_only) { 1616 fs->super->s_state |= EXT2_ERROR_FS; 1617 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY); 1618 } else { 1619 /* rsv must be a power of two (64kB is MD RAID sb alignment) */ 1620 unsigned int rsv = 65536 / fs->blocksize; 1621 unsigned long blocks = fs->super->s_blocks_count; 1622 unsigned long start; 1623 blk_t ret_blk; 1624 1625#ifdef ZAP_BOOTBLOCK 1626 zap_sector(fs, 0, 2); 1627#endif 1628 1629 /* 1630 * Wipe out any old MD RAID (or other) metadata at the end 1631 * of the device. This will also verify that the device is 1632 * as large as we think. Be careful with very small devices. 1633 */ 1634 start = (blocks & ~(rsv - 1)); 1635 if (start > rsv) 1636 start -= rsv; 1637 if (start > 0) 1638 retval = zero_blocks(fs, start, blocks - start, 1639 NULL, &ret_blk, NULL); 1640 1641 if (retval) { 1642 com_err(program_name, retval, 1643 _("while zeroing block %u at end of filesystem"), 1644 ret_blk); 1645 } 1646 setup_lazy_bg(fs); 1647 write_inode_tables(fs); 1648 create_root_dir(fs); 1649 create_lost_and_found(fs); 1650 reserve_inodes(fs); 1651 create_bad_block_inode(fs, bb_list); 1652 if (fs->super->s_feature_compat & 1653 EXT2_FEATURE_COMPAT_RESIZE_INODE) { 1654 retval = ext2fs_create_resize_inode(fs); 1655 if (retval) { 1656 com_err("ext2fs_create_resize_inode", retval, 1657 _("while reserving blocks for online resize")); 1658 exit(1); 1659 } 1660 } 1661 } 1662 1663 if (journal_device) { 1664 ext2_filsys jfs; 1665 1666 if (!force) 1667 check_plausibility(journal_device); 1668 check_mount(journal_device, force, _("journal")); 1669 1670 retval = ext2fs_open(journal_device, EXT2_FLAG_RW| 1671 EXT2_FLAG_JOURNAL_DEV_OK, 0, 1672 fs->blocksize, unix_io_manager, &jfs); 1673 if (retval) { 1674 com_err(program_name, retval, 1675 _("while trying to open journal device %s\n"), 1676 journal_device); 1677 exit(1); 1678 } 1679 if (!quiet) { 1680 printf(_("Adding journal to device %s: "), 1681 journal_device); 1682 fflush(stdout); 1683 } 1684 retval = ext2fs_add_journal_device(fs, jfs); 1685 if(retval) { 1686 com_err (program_name, retval, 1687 _("\n\twhile trying to add journal to device %s"), 1688 journal_device); 1689 exit(1); 1690 } 1691 if (!quiet) 1692 printf(_("done\n")); 1693 ext2fs_close(jfs); 1694 free(journal_device); 1695 } else if ((journal_size) || 1696 (fs_param.s_feature_compat & 1697 EXT3_FEATURE_COMPAT_HAS_JOURNAL)) { 1698 journal_blocks = figure_journal_size(journal_size, fs); 1699 1700 if (!journal_blocks) { 1701 fs->super->s_feature_compat &= 1702 ~EXT3_FEATURE_COMPAT_HAS_JOURNAL; 1703 goto no_journal; 1704 } 1705 if (!quiet) { 1706 printf(_("Creating journal (%d blocks): "), 1707 journal_blocks); 1708 fflush(stdout); 1709 } 1710 retval = ext2fs_add_journal_inode(fs, journal_blocks, 1711 journal_flags); 1712 if (retval) { 1713 com_err (program_name, retval, 1714 _("\n\twhile trying to create journal")); 1715 exit(1); 1716 } 1717 if (!quiet) 1718 printf(_("done\n")); 1719 } 1720no_journal: 1721 1722 if (!quiet) 1723 printf(_("Writing superblocks and " 1724 "filesystem accounting information: ")); 1725 retval = ext2fs_flush(fs); 1726 if (retval) { 1727 fprintf(stderr, 1728 _("\nWarning, had trouble writing out superblocks.")); 1729 } 1730 if (!quiet) { 1731 printf(_("done\n\n")); 1732 if (!getenv("MKE2FS_SKIP_CHECK_MSG")) 1733 print_check_message(fs); 1734 } 1735 val = ext2fs_close(fs); 1736 remove_error_table(&et_ext2_error_table); 1737 remove_error_table(&et_prof_error_table); 1738 return (retval || val) ? 1 : 0; 1739} 1740