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|-l filename] [-b block-size] " 98 "[-f fragment-size]\n\t[-i bytes-per-inode] [-I inode-size] " 99 "[-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] [-E extended-option[,...]]\n" 104 "\t[-T fs-type] [-jnqvFSV] device [blocks-count]\n"), 105 program_name); 106 exit(1); 107} 108 109static int int_log2(int arg) 110{ 111 int l = 0; 112 113 arg >>= 1; 114 while (arg) { 115 l++; 116 arg >>= 1; 117 } 118 return l; 119} 120 121static int int_log10(unsigned int arg) 122{ 123 int l; 124 125 for (l=0; arg ; l++) 126 arg = arg / 10; 127 return l; 128} 129 130static int parse_version_number(const char *s) 131{ 132 int major, minor, rev; 133 char *endptr; 134 const char *cp = s; 135 136 if (!s) 137 return 0; 138 major = strtol(cp, &endptr, 10); 139 if (cp == endptr || *endptr != '.') 140 return 0; 141 cp = endptr + 1; 142 minor = strtol(cp, &endptr, 10); 143 if (cp == endptr || *endptr != '.') 144 return 0; 145 cp = endptr + 1; 146 rev = strtol(cp, &endptr, 10); 147 if (cp == endptr) 148 return 0; 149 return ((((major * 256) + minor) * 256) + rev); 150} 151 152/* 153 * Helper function for read_bb_file and test_disk 154 */ 155static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk) 156{ 157 fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk); 158 return; 159} 160 161/* 162 * Reads the bad blocks list from a file 163 */ 164static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list, 165 const char *bad_blocks_file) 166{ 167 FILE *f; 168 errcode_t retval; 169 170 f = fopen(bad_blocks_file, "r"); 171 if (!f) { 172 com_err("read_bad_blocks_file", errno, 173 _("while trying to open %s"), bad_blocks_file); 174 exit(1); 175 } 176 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block); 177 fclose (f); 178 if (retval) { 179 com_err("ext2fs_read_bb_FILE", retval, 180 _("while reading in list of bad blocks from file")); 181 exit(1); 182 } 183} 184 185/* 186 * Runs the badblocks program to test the disk 187 */ 188static void test_disk(ext2_filsys fs, badblocks_list *bb_list) 189{ 190 FILE *f; 191 errcode_t retval; 192 char buf[1024]; 193 194 sprintf(buf, "badblocks -b %d -X %s%s%s %u", fs->blocksize, 195 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "", 196 fs->device_name, fs->super->s_blocks_count-1); 197 if (verbose) 198 printf(_("Running command: %s\n"), buf); 199 f = popen(buf, "r"); 200 if (!f) { 201 com_err("popen", errno, 202 _("while trying to run '%s'"), buf); 203 exit(1); 204 } 205 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block); 206 pclose(f); 207 if (retval) { 208 com_err("ext2fs_read_bb_FILE", retval, 209 _("while processing list of bad blocks from program")); 210 exit(1); 211 } 212} 213 214static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list) 215{ 216 dgrp_t i; 217 blk_t j; 218 unsigned must_be_good; 219 blk_t blk; 220 badblocks_iterate bb_iter; 221 errcode_t retval; 222 blk_t group_block; 223 int group; 224 int group_bad; 225 226 if (!bb_list) 227 return; 228 229 /* 230 * The primary superblock and group descriptors *must* be 231 * good; if not, abort. 232 */ 233 must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks; 234 for (i = fs->super->s_first_data_block; i <= must_be_good; i++) { 235 if (ext2fs_badblocks_list_test(bb_list, i)) { 236 fprintf(stderr, _("Block %d in primary " 237 "superblock/group descriptor area bad.\n"), i); 238 fprintf(stderr, _("Blocks %u through %u must be good " 239 "in order to build a filesystem.\n"), 240 fs->super->s_first_data_block, must_be_good); 241 fputs(_("Aborting....\n"), stderr); 242 exit(1); 243 } 244 } 245 246 /* 247 * See if any of the bad blocks are showing up in the backup 248 * superblocks and/or group descriptors. If so, issue a 249 * warning and adjust the block counts appropriately. 250 */ 251 group_block = fs->super->s_first_data_block + 252 fs->super->s_blocks_per_group; 253 254 for (i = 1; i < fs->group_desc_count; i++) { 255 group_bad = 0; 256 for (j=0; j < fs->desc_blocks+1; j++) { 257 if (ext2fs_badblocks_list_test(bb_list, 258 group_block + j)) { 259 if (!group_bad) 260 fprintf(stderr, 261_("Warning: the backup superblock/group descriptors at block %u contain\n" 262" bad blocks.\n\n"), 263 group_block); 264 group_bad++; 265 group = ext2fs_group_of_blk(fs, group_block+j); 266 fs->group_desc[group].bg_free_blocks_count++; 267 fs->super->s_free_blocks_count++; 268 } 269 } 270 group_block += fs->super->s_blocks_per_group; 271 } 272 273 /* 274 * Mark all the bad blocks as used... 275 */ 276 retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter); 277 if (retval) { 278 com_err("ext2fs_badblocks_list_iterate_begin", retval, 279 _("while marking bad blocks as used")); 280 exit(1); 281 } 282 while (ext2fs_badblocks_list_iterate(bb_iter, &blk)) 283 ext2fs_mark_block_bitmap(fs->block_map, blk); 284 ext2fs_badblocks_list_iterate_end(bb_iter); 285} 286 287/* 288 * These functions implement a generalized progress meter. 289 */ 290struct progress_struct { 291 char format[20]; 292 char backup[80]; 293 __u32 max; 294 int skip_progress; 295}; 296 297static void progress_init(struct progress_struct *progress, 298 const char *label,__u32 max) 299{ 300 int i; 301 302 memset(progress, 0, sizeof(struct progress_struct)); 303 if (quiet) 304 return; 305 306 /* 307 * Figure out how many digits we need 308 */ 309 i = int_log10(max); 310 sprintf(progress->format, "%%%dd/%%%dld", i, i); 311 memset(progress->backup, '\b', sizeof(progress->backup)-1); 312 progress->backup[sizeof(progress->backup)-1] = 0; 313 if ((2*i)+1 < (int) sizeof(progress->backup)) 314 progress->backup[(2*i)+1] = 0; 315 progress->max = max; 316 317 progress->skip_progress = 0; 318 if (getenv("MKE2FS_SKIP_PROGRESS")) 319 progress->skip_progress++; 320 321 fputs(label, stdout); 322 fflush(stdout); 323} 324 325static void progress_update(struct progress_struct *progress, __u32 val) 326{ 327 if ((progress->format[0] == 0) || progress->skip_progress) 328 return; 329 printf(progress->format, val, progress->max); 330 fputs(progress->backup, stdout); 331} 332 333static void progress_close(struct progress_struct *progress) 334{ 335 if (progress->format[0] == 0) 336 return; 337 fputs(_("done \n"), stdout); 338} 339 340 341/* 342 * Helper function which zeros out _num_ blocks starting at _blk_. In 343 * case of an error, the details of the error is returned via _ret_blk_ 344 * and _ret_count_ if they are non-NULL pointers. Returns 0 on 345 * success, and an error code on an error. 346 * 347 * As a special case, if the first argument is NULL, then it will 348 * attempt to free the static zeroizing buffer. (This is to keep 349 * programs that check for memory leaks happy.) 350 */ 351static errcode_t zero_blocks(ext2_filsys fs, blk_t blk, int num, 352 struct progress_struct *progress, 353 blk_t *ret_blk, int *ret_count) 354{ 355 int j, count, next_update, next_update_incr; 356 static char *buf; 357 errcode_t retval; 358 359 /* If fs is null, clean up the static buffer and return */ 360 if (!fs) { 361 if (buf) { 362 free(buf); 363 buf = 0; 364 } 365 return 0; 366 } 367 /* Allocate the zeroizing buffer if necessary */ 368 if (!buf) { 369 buf = malloc(fs->blocksize * STRIDE_LENGTH); 370 if (!buf) { 371 com_err("malloc", ENOMEM, 372 _("while allocating zeroizing buffer")); 373 exit(1); 374 } 375 memset(buf, 0, fs->blocksize * STRIDE_LENGTH); 376 } 377 /* OK, do the write loop */ 378 next_update = 0; 379 next_update_incr = num / 100; 380 if (next_update_incr < 1) 381 next_update_incr = 1; 382 for (j=0; j < num; j += STRIDE_LENGTH, blk += STRIDE_LENGTH) { 383 count = num - j; 384 if (count > STRIDE_LENGTH) 385 count = STRIDE_LENGTH; 386 retval = io_channel_write_blk(fs->io, blk, count, buf); 387 if (retval) { 388 if (ret_count) 389 *ret_count = count; 390 if (ret_blk) 391 *ret_blk = blk; 392 return retval; 393 } 394 if (progress && j > next_update) { 395 next_update += num / 100; 396 progress_update(progress, blk); 397 } 398 } 399 return 0; 400} 401 402static void write_inode_tables(ext2_filsys fs) 403{ 404 errcode_t retval; 405 blk_t blk; 406 dgrp_t i; 407 int num; 408 struct progress_struct progress; 409 int lazy_flag = 0; 410 411 if (quiet) 412 memset(&progress, 0, sizeof(progress)); 413 else 414 progress_init(&progress, _("Writing inode tables: "), 415 fs->group_desc_count); 416 417 if (EXT2_HAS_COMPAT_FEATURE(fs->super, 418 EXT2_FEATURE_COMPAT_LAZY_BG)) 419 lazy_flag = 1; 420 421 for (i = 0; i < fs->group_desc_count; i++) { 422 progress_update(&progress, i); 423 424 blk = fs->group_desc[i].bg_inode_table; 425 num = fs->inode_blocks_per_group; 426 427 if (!(lazy_flag && 428 (fs->group_desc[i].bg_flags & EXT2_BG_INODE_UNINIT))) { 429 retval = zero_blocks(fs, blk, num, 0, &blk, &num); 430 if (retval) { 431 fprintf(stderr, _("\nCould not write %d " 432 "blocks in inode table starting at %u: %s\n"), 433 num, blk, error_message(retval)); 434 exit(1); 435 } 436 } 437 if (sync_kludge) { 438 if (sync_kludge == 1) 439 sync(); 440 else if ((i % sync_kludge) == 0) 441 sync(); 442 } 443 } 444 zero_blocks(0, 0, 0, 0, 0, 0); 445 progress_close(&progress); 446} 447 448static void setup_lazy_bg(ext2_filsys fs) 449{ 450 dgrp_t i; 451 int blks; 452 struct ext2_super_block *sb = fs->super; 453 struct ext2_group_desc *bg = fs->group_desc; 454 455 if (EXT2_HAS_COMPAT_FEATURE(fs->super, 456 EXT2_FEATURE_COMPAT_LAZY_BG)) { 457 for (i = 0; i < fs->group_desc_count; i++, bg++) { 458 if ((i == 0) || 459 (i == fs->group_desc_count-1)) 460 continue; 461 if (bg->bg_free_inodes_count == 462 sb->s_inodes_per_group) { 463 bg->bg_free_inodes_count = 0; 464 bg->bg_flags |= EXT2_BG_INODE_UNINIT; 465 sb->s_free_inodes_count -= 466 sb->s_inodes_per_group; 467 } 468 blks = ext2fs_super_and_bgd_loc(fs, i, 0, 0, 0, 0); 469 if (bg->bg_free_blocks_count == blks) { 470 bg->bg_free_blocks_count = 0; 471 bg->bg_flags |= EXT2_BG_BLOCK_UNINIT; 472 sb->s_free_blocks_count -= blks; 473 } 474 } 475 } 476} 477 478 479static void create_root_dir(ext2_filsys fs) 480{ 481 errcode_t retval; 482 struct ext2_inode inode; 483 __u32 uid, gid; 484 485 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0); 486 if (retval) { 487 com_err("ext2fs_mkdir", retval, _("while creating root dir")); 488 exit(1); 489 } 490 if (geteuid()) { 491 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode); 492 if (retval) { 493 com_err("ext2fs_read_inode", retval, 494 _("while reading root inode")); 495 exit(1); 496 } 497 uid = getuid(); 498 inode.i_uid = uid; 499 ext2fs_set_i_uid_high(inode, uid >> 16); 500 if (uid) { 501 gid = getgid(); 502 inode.i_gid = gid; 503 ext2fs_set_i_gid_high(inode, gid >> 16); 504 } 505 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode); 506 if (retval) { 507 com_err("ext2fs_write_inode", retval, 508 _("while setting root inode ownership")); 509 exit(1); 510 } 511 } 512} 513 514static void create_lost_and_found(ext2_filsys fs) 515{ 516 errcode_t retval; 517 ext2_ino_t ino; 518 const char *name = "lost+found"; 519 int i; 520 int lpf_size = 0; 521 522 fs->umask = 077; 523 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name); 524 if (retval) { 525 com_err("ext2fs_mkdir", retval, 526 _("while creating /lost+found")); 527 exit(1); 528 } 529 530 retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino); 531 if (retval) { 532 com_err("ext2_lookup", retval, 533 _("while looking up /lost+found")); 534 exit(1); 535 } 536 537 for (i=1; i < EXT2_NDIR_BLOCKS; i++) { 538 if ((lpf_size += fs->blocksize) >= 16*1024) 539 break; 540 retval = ext2fs_expand_dir(fs, ino); 541 if (retval) { 542 com_err("ext2fs_expand_dir", retval, 543 _("while expanding /lost+found")); 544 exit(1); 545 } 546 } 547} 548 549static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list) 550{ 551 errcode_t retval; 552 553 ext2fs_mark_inode_bitmap(fs->inode_map, EXT2_BAD_INO); 554 fs->group_desc[0].bg_free_inodes_count--; 555 fs->super->s_free_inodes_count--; 556 retval = ext2fs_update_bb_inode(fs, bb_list); 557 if (retval) { 558 com_err("ext2fs_update_bb_inode", retval, 559 _("while setting bad block inode")); 560 exit(1); 561 } 562 563} 564 565static void reserve_inodes(ext2_filsys fs) 566{ 567 ext2_ino_t i; 568 int group; 569 570 for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++) { 571 ext2fs_mark_inode_bitmap(fs->inode_map, i); 572 group = ext2fs_group_of_ino(fs, i); 573 fs->group_desc[group].bg_free_inodes_count--; 574 fs->super->s_free_inodes_count--; 575 } 576 ext2fs_mark_ib_dirty(fs); 577} 578 579#define BSD_DISKMAGIC (0x82564557UL) /* The disk magic number */ 580#define BSD_MAGICDISK (0x57455682UL) /* The disk magic number reversed */ 581#define BSD_LABEL_OFFSET 64 582 583static void zap_sector(ext2_filsys fs, int sect, int nsect) 584{ 585 char *buf; 586 int retval; 587 unsigned int *magic; 588 589 buf = malloc(512*nsect); 590 if (!buf) { 591 printf(_("Out of memory erasing sectors %d-%d\n"), 592 sect, sect + nsect - 1); 593 exit(1); 594 } 595 596 if (sect == 0) { 597 /* Check for a BSD disklabel, and don't erase it if so */ 598 retval = io_channel_read_blk(fs->io, 0, -512, buf); 599 if (retval) 600 fprintf(stderr, 601 _("Warning: could not read block 0: %s\n"), 602 error_message(retval)); 603 else { 604 magic = (unsigned int *) (buf + BSD_LABEL_OFFSET); 605 if ((*magic == BSD_DISKMAGIC) || 606 (*magic == BSD_MAGICDISK)) 607 return; 608 } 609 } 610 611 memset(buf, 0, 512*nsect); 612 io_channel_set_blksize(fs->io, 512); 613 retval = io_channel_write_blk(fs->io, sect, -512*nsect, buf); 614 io_channel_set_blksize(fs->io, fs->blocksize); 615 free(buf); 616 if (retval) 617 fprintf(stderr, _("Warning: could not erase sector %d: %s\n"), 618 sect, error_message(retval)); 619} 620 621static void create_journal_dev(ext2_filsys fs) 622{ 623 struct progress_struct progress; 624 errcode_t retval; 625 char *buf; 626 blk_t blk; 627 int count; 628 629 retval = ext2fs_create_journal_superblock(fs, 630 fs->super->s_blocks_count, 0, &buf); 631 if (retval) { 632 com_err("create_journal_dev", retval, 633 _("while initializing journal superblock")); 634 exit(1); 635 } 636 if (quiet) 637 memset(&progress, 0, sizeof(progress)); 638 else 639 progress_init(&progress, _("Zeroing journal device: "), 640 fs->super->s_blocks_count); 641 642 retval = zero_blocks(fs, 0, fs->super->s_blocks_count, 643 &progress, &blk, &count); 644 if (retval) { 645 com_err("create_journal_dev", retval, 646 _("while zeroing journal device (block %u, count %d)"), 647 blk, count); 648 exit(1); 649 } 650 zero_blocks(0, 0, 0, 0, 0, 0); 651 652 retval = io_channel_write_blk(fs->io, 653 fs->super->s_first_data_block+1, 654 1, buf); 655 if (retval) { 656 com_err("create_journal_dev", retval, 657 _("while writing journal superblock")); 658 exit(1); 659 } 660 progress_close(&progress); 661} 662 663static void show_stats(ext2_filsys fs) 664{ 665 struct ext2_super_block *s = fs->super; 666 char buf[80]; 667 char *os; 668 blk_t group_block; 669 dgrp_t i; 670 int need, col_left; 671 672 if (fs_param.s_blocks_count != s->s_blocks_count) 673 fprintf(stderr, _("warning: %u blocks unused.\n\n"), 674 fs_param.s_blocks_count - s->s_blocks_count); 675 676 memset(buf, 0, sizeof(buf)); 677 strncpy(buf, s->s_volume_name, sizeof(s->s_volume_name)); 678 printf(_("Filesystem label=%s\n"), buf); 679 fputs(_("OS type: "), stdout); 680 os = e2p_os2string(fs->super->s_creator_os); 681 fputs(os, stdout); 682 free(os); 683 printf("\n"); 684 printf(_("Block size=%u (log=%u)\n"), fs->blocksize, 685 s->s_log_block_size); 686 printf(_("Fragment size=%u (log=%u)\n"), fs->fragsize, 687 s->s_log_frag_size); 688 printf(_("%u inodes, %u blocks\n"), s->s_inodes_count, 689 s->s_blocks_count); 690 printf(_("%u blocks (%2.2f%%) reserved for the super user\n"), 691 s->s_r_blocks_count, 692 100.0 * s->s_r_blocks_count / s->s_blocks_count); 693 printf(_("First data block=%u\n"), s->s_first_data_block); 694 if (s->s_reserved_gdt_blocks) 695 printf(_("Maximum filesystem blocks=%lu\n"), 696 (s->s_reserved_gdt_blocks + fs->desc_blocks) * 697 (fs->blocksize / sizeof(struct ext2_group_desc)) * 698 s->s_blocks_per_group); 699 if (fs->group_desc_count > 1) 700 printf(_("%u block groups\n"), fs->group_desc_count); 701 else 702 printf(_("%u block group\n"), fs->group_desc_count); 703 printf(_("%u blocks per group, %u fragments per group\n"), 704 s->s_blocks_per_group, s->s_frags_per_group); 705 printf(_("%u inodes per group\n"), s->s_inodes_per_group); 706 707 if (fs->group_desc_count == 1) { 708 printf("\n"); 709 return; 710 } 711 712 printf(_("Superblock backups stored on blocks: ")); 713 group_block = s->s_first_data_block; 714 col_left = 0; 715 for (i = 1; i < fs->group_desc_count; i++) { 716 group_block += s->s_blocks_per_group; 717 if (!ext2fs_bg_has_super(fs, i)) 718 continue; 719 if (i != 1) 720 printf(", "); 721 need = int_log10(group_block) + 2; 722 if (need > col_left) { 723 printf("\n\t"); 724 col_left = 72; 725 } 726 col_left -= need; 727 printf("%u", group_block); 728 } 729 printf("\n\n"); 730} 731 732/* 733 * Set the S_CREATOR_OS field. Return true if OS is known, 734 * otherwise, 0. 735 */ 736static int set_os(struct ext2_super_block *sb, char *os) 737{ 738 if (isdigit (*os)) 739 sb->s_creator_os = atoi (os); 740 else if (strcasecmp(os, "linux") == 0) 741 sb->s_creator_os = EXT2_OS_LINUX; 742 else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0) 743 sb->s_creator_os = EXT2_OS_HURD; 744 else if (strcasecmp(os, "masix") == 0) 745 sb->s_creator_os = EXT2_OS_MASIX; 746 else if (strcasecmp(os, "freebsd") == 0) 747 sb->s_creator_os = EXT2_OS_FREEBSD; 748 else if (strcasecmp(os, "lites") == 0) 749 sb->s_creator_os = EXT2_OS_LITES; 750 else 751 return 0; 752 return 1; 753} 754 755#define PATH_SET "PATH=/sbin" 756 757static void parse_extended_opts(struct ext2_super_block *param, 758 const char *opts) 759{ 760 char *buf, *token, *next, *p, *arg, *badopt = ""; 761 int len; 762 int r_usage = 0; 763 764 len = strlen(opts); 765 buf = malloc(len+1); 766 if (!buf) { 767 fprintf(stderr, 768 _("Couldn't allocate memory to parse options!\n")); 769 exit(1); 770 } 771 strcpy(buf, opts); 772 for (token = buf; token && *token; token = next) { 773 p = strchr(token, ','); 774 next = 0; 775 if (p) { 776 *p = 0; 777 next = p+1; 778 } 779 arg = strchr(token, '='); 780 if (arg) { 781 *arg = 0; 782 arg++; 783 } 784 if (strcmp(token, "stride") == 0) { 785 if (!arg) { 786 r_usage++; 787 badopt = token; 788 continue; 789 } 790 param->s_raid_stride = strtoul(arg, &p, 0); 791 if (*p || (param->s_raid_stride == 0)) { 792 fprintf(stderr, 793 _("Invalid stride parameter: %s\n"), 794 arg); 795 r_usage++; 796 continue; 797 } 798 } else if (strcmp(token, "stripe-width") == 0 || 799 strcmp(token, "stripe_width") == 0) { 800 if (!arg) { 801 r_usage++; 802 badopt = token; 803 continue; 804 } 805 param->s_raid_stripe_width = strtoul(arg, &p, 0); 806 if (*p || (param->s_raid_stripe_width == 0)) { 807 fprintf(stderr, 808 _("Invalid stripe-width parameter: %s\n"), 809 arg); 810 r_usage++; 811 continue; 812 } 813 } else if (!strcmp(token, "resize")) { 814 unsigned long resize, bpg, rsv_groups; 815 unsigned long group_desc_count, desc_blocks; 816 unsigned int gdpb, blocksize; 817 int rsv_gdb; 818 819 if (!arg) { 820 r_usage++; 821 badopt = token; 822 continue; 823 } 824 825 resize = parse_num_blocks(arg, 826 param->s_log_block_size); 827 828 if (resize == 0) { 829 fprintf(stderr, 830 _("Invalid resize parameter: %s\n"), 831 arg); 832 r_usage++; 833 continue; 834 } 835 if (resize <= param->s_blocks_count) { 836 fprintf(stderr, 837 _("The resize maximum must be greater " 838 "than the filesystem size.\n")); 839 r_usage++; 840 continue; 841 } 842 843 blocksize = EXT2_BLOCK_SIZE(param); 844 bpg = param->s_blocks_per_group; 845 if (!bpg) 846 bpg = blocksize * 8; 847 gdpb = blocksize / sizeof(struct ext2_group_desc); 848 group_desc_count = 849 ext2fs_div_ceil(param->s_blocks_count, bpg); 850 desc_blocks = (group_desc_count + 851 gdpb - 1) / gdpb; 852 rsv_groups = ext2fs_div_ceil(resize, bpg); 853 rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) - 854 desc_blocks; 855 if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param)) 856 rsv_gdb = EXT2_ADDR_PER_BLOCK(param); 857 858 if (rsv_gdb > 0) { 859 if (param->s_rev_level == EXT2_GOOD_OLD_REV) { 860 fprintf(stderr, 861 _("On-line resizing not supported with revision 0 filesystems\n")); 862 free(buf); 863 exit(1); 864 } 865 param->s_feature_compat |= 866 EXT2_FEATURE_COMPAT_RESIZE_INODE; 867 868 param->s_reserved_gdt_blocks = rsv_gdb; 869 } 870 } else if (!strcmp(token, "test_fs")) { 871 param->s_flags |= EXT2_FLAGS_TEST_FILESYS; 872 } else { 873 r_usage++; 874 badopt = token; 875 } 876 } 877 if (r_usage) { 878 fprintf(stderr, _("\nBad option(s) specified: %s\n\n" 879 "Extended options are separated by commas, " 880 "and may take an argument which\n" 881 "\tis set off by an equals ('=') sign.\n\n" 882 "Valid extended options are:\n" 883 "\tstride=<RAID per-disk data chunk in blocks>\n" 884 "\tstripe-width=<RAID stride * data disks in blocks>\n" 885 "\tresize=<resize maximum size in blocks>\n\n" 886 "\ttest_fs\n"), 887 badopt); 888 free(buf); 889 exit(1); 890 } 891 if (param->s_raid_stride && 892 (param->s_raid_stripe_width % param->s_raid_stride) != 0) 893 fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even " 894 "multiple of stride %u.\n\n"), 895 param->s_raid_stripe_width, param->s_raid_stride); 896 897 free(buf); 898} 899 900static __u32 ok_features[3] = { 901 /* Compat */ 902 EXT3_FEATURE_COMPAT_HAS_JOURNAL | 903 EXT2_FEATURE_COMPAT_RESIZE_INODE | 904 EXT2_FEATURE_COMPAT_DIR_INDEX | 905 EXT2_FEATURE_COMPAT_LAZY_BG | 906 EXT2_FEATURE_COMPAT_EXT_ATTR, 907 /* Incompat */ 908 EXT2_FEATURE_INCOMPAT_FILETYPE| 909 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV| 910 EXT2_FEATURE_INCOMPAT_META_BG, 911 /* R/O compat */ 912 EXT2_FEATURE_RO_COMPAT_LARGE_FILE| 913 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER 914}; 915 916 917static void syntax_err_report(const char *filename, long err, int line_num) 918{ 919 fprintf(stderr, 920 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"), 921 filename, line_num, error_message(err)); 922 exit(1); 923} 924 925static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 }; 926 927static void edit_feature(const char *str, __u32 *compat_array) 928{ 929 if (!str) 930 return; 931 932 if (e2p_edit_feature(str, compat_array, ok_features)) { 933 fprintf(stderr, _("Invalid filesystem option set: %s\n"), 934 str); 935 exit(1); 936 } 937} 938 939extern const char *mke2fs_default_profile; 940static const char *default_files[] = { "<default>", 0 }; 941 942static void PRS(int argc, char *argv[]) 943{ 944 int b, c; 945 int size; 946 char *tmp, *tmp2; 947 int blocksize = 0; 948 int inode_ratio = 0; 949 int inode_size = 0; 950 double reserved_ratio = 5.0; 951 int sector_size = 0; 952 int show_version_only = 0; 953 unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */ 954 errcode_t retval; 955 char * oldpath = getenv("PATH"); 956 char * extended_opts = 0; 957 const char * fs_type = 0; 958 blk_t dev_size; 959#ifdef __linux__ 960 struct utsname ut; 961#endif 962 long sysval; 963 int s_opt = -1, r_opt = -1; 964 char *fs_features = 0; 965 int use_bsize; 966 char *newpath; 967 int pathlen = sizeof(PATH_SET) + 1; 968 969 if (oldpath) 970 pathlen += strlen(oldpath); 971 newpath = malloc(pathlen); 972 strcpy(newpath, PATH_SET); 973 974 /* Update our PATH to include /sbin */ 975 if (oldpath) { 976 strcat (newpath, ":"); 977 strcat (newpath, oldpath); 978 } 979 putenv (newpath); 980 981 tmp = getenv("MKE2FS_SYNC"); 982 if (tmp) 983 sync_kludge = atoi(tmp); 984 985 /* Determine the system page size if possible */ 986#ifdef HAVE_SYSCONF 987#if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE)) 988#define _SC_PAGESIZE _SC_PAGE_SIZE 989#endif 990#ifdef _SC_PAGESIZE 991 sysval = sysconf(_SC_PAGESIZE); 992 if (sysval > 0) 993 sys_page_size = sysval; 994#endif /* _SC_PAGESIZE */ 995#endif /* HAVE_SYSCONF */ 996 997 if ((tmp = getenv("MKE2FS_CONFIG")) != NULL) 998 config_fn[0] = tmp; 999 profile_set_syntax_err_cb(syntax_err_report); 1000 retval = profile_init(config_fn, &profile); 1001 if (retval == ENOENT) { 1002 profile_init(default_files, &profile); 1003 profile_set_default(profile, mke2fs_default_profile); 1004 } 1005 1006 setbuf(stdout, NULL); 1007 setbuf(stderr, NULL); 1008 add_error_table(&et_ext2_error_table); 1009 add_error_table(&et_prof_error_table); 1010 memset(&fs_param, 0, sizeof(struct ext2_super_block)); 1011 fs_param.s_rev_level = 1; /* Create revision 1 filesystems now */ 1012 1013#ifdef __linux__ 1014 if (uname(&ut)) { 1015 perror("uname"); 1016 exit(1); 1017 } 1018 linux_version_code = parse_version_number(ut.release); 1019 if (linux_version_code && linux_version_code < (2*65536 + 2*256)) 1020 fs_param.s_rev_level = 0; 1021#endif 1022 1023 if (argc && *argv) { 1024 program_name = get_progname(*argv); 1025 1026 /* If called as mkfs.ext3, create a journal inode */ 1027 if (!strcmp(program_name, "mkfs.ext3")) 1028 journal_size = -1; 1029 } 1030 1031 while ((c = getopt (argc, argv, 1032 "b:cf:g:i:jl:m:no:qr:s:tvE:FI:J:L:M:N:O:R:ST:V")) != EOF) { 1033 switch (c) { 1034 case 'b': 1035 blocksize = strtol(optarg, &tmp, 0); 1036 b = (blocksize > 0) ? blocksize : -blocksize; 1037 if (b < EXT2_MIN_BLOCK_SIZE || 1038 b > EXT2_MAX_BLOCK_SIZE || *tmp) { 1039 com_err(program_name, 0, 1040 _("invalid block size - %s"), optarg); 1041 exit(1); 1042 } 1043 if (blocksize > 4096) 1044 fprintf(stderr, _("Warning: blocksize %d not " 1045 "usable on most systems.\n"), 1046 blocksize); 1047 if (blocksize > 0) 1048 fs_param.s_log_block_size = 1049 int_log2(blocksize >> 1050 EXT2_MIN_BLOCK_LOG_SIZE); 1051 break; 1052 case 'c': /* Check for bad blocks */ 1053 case 't': /* deprecated */ 1054 cflag++; 1055 break; 1056 case 'f': 1057 size = strtoul(optarg, &tmp, 0); 1058 if (size < EXT2_MIN_BLOCK_SIZE || 1059 size > EXT2_MAX_BLOCK_SIZE || *tmp) { 1060 com_err(program_name, 0, 1061 _("invalid fragment size - %s"), 1062 optarg); 1063 exit(1); 1064 } 1065 fs_param.s_log_frag_size = 1066 int_log2(size >> EXT2_MIN_BLOCK_LOG_SIZE); 1067 fprintf(stderr, _("Warning: fragments not supported. " 1068 "Ignoring -f option\n")); 1069 break; 1070 case 'g': 1071 fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0); 1072 if (*tmp) { 1073 com_err(program_name, 0, 1074 _("Illegal number for blocks per group")); 1075 exit(1); 1076 } 1077 if ((fs_param.s_blocks_per_group % 8) != 0) { 1078 com_err(program_name, 0, 1079 _("blocks per group must be multiple of 8")); 1080 exit(1); 1081 } 1082 break; 1083 case 'i': 1084 inode_ratio = strtoul(optarg, &tmp, 0); 1085 if (inode_ratio < EXT2_MIN_BLOCK_SIZE || 1086 inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024 || 1087 *tmp) { 1088 com_err(program_name, 0, 1089 _("invalid inode ratio %s (min %d/max %d)"), 1090 optarg, EXT2_MIN_BLOCK_SIZE, 1091 EXT2_MAX_BLOCK_SIZE); 1092 exit(1); 1093 } 1094 break; 1095 case 'J': 1096 parse_journal_opts(optarg); 1097 break; 1098 case 'j': 1099 if (!journal_size) 1100 journal_size = -1; 1101 break; 1102 case 'l': 1103 bad_blocks_filename = malloc(strlen(optarg)+1); 1104 if (!bad_blocks_filename) { 1105 com_err(program_name, ENOMEM, 1106 _("in malloc for bad_blocks_filename")); 1107 exit(1); 1108 } 1109 strcpy(bad_blocks_filename, optarg); 1110 break; 1111 case 'm': 1112 reserved_ratio = strtod(optarg, &tmp); 1113 if (reserved_ratio > 50 || *tmp) { 1114 com_err(program_name, 0, 1115 _("invalid reserved blocks percent - %s"), 1116 optarg); 1117 exit(1); 1118 } 1119 break; 1120 case 'n': 1121 noaction++; 1122 break; 1123 case 'o': 1124 creator_os = optarg; 1125 break; 1126 case 'q': 1127 quiet = 1; 1128 break; 1129 case 'r': 1130 r_opt = strtoul(optarg, &tmp, 0); 1131 if (*tmp) { 1132 com_err(program_name, 0, 1133 _("bad revision level - %s"), optarg); 1134 exit(1); 1135 } 1136 fs_param.s_rev_level = r_opt; 1137 break; 1138 case 's': /* deprecated */ 1139 s_opt = atoi(optarg); 1140 break; 1141 case 'I': 1142 inode_size = strtoul(optarg, &tmp, 0); 1143 if (*tmp) { 1144 com_err(program_name, 0, 1145 _("invalid inode size - %s"), optarg); 1146 exit(1); 1147 } 1148 break; 1149 case 'v': 1150 verbose = 1; 1151 break; 1152 case 'F': 1153 force++; 1154 break; 1155 case 'L': 1156 volume_label = optarg; 1157 break; 1158 case 'M': 1159 mount_dir = optarg; 1160 break; 1161 case 'N': 1162 num_inodes = strtoul(optarg, &tmp, 0); 1163 if (*tmp) { 1164 com_err(program_name, 0, 1165 _("bad num inodes - %s"), optarg); 1166 exit(1); 1167 } 1168 break; 1169 case 'O': 1170 fs_features = optarg; 1171 break; 1172 case 'E': 1173 case 'R': 1174 extended_opts = optarg; 1175 break; 1176 case 'S': 1177 super_only = 1; 1178 break; 1179 case 'T': 1180 fs_type = optarg; 1181 break; 1182 case 'V': 1183 /* Print version number and exit */ 1184 show_version_only++; 1185 break; 1186 default: 1187 usage(); 1188 } 1189 } 1190 if ((optind == argc) && !show_version_only) 1191 usage(); 1192 device_name = argv[optind++]; 1193 1194 if (!quiet || show_version_only) 1195 fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION, 1196 E2FSPROGS_DATE); 1197 1198 if (show_version_only) { 1199 fprintf(stderr, _("\tUsing %s\n"), 1200 error_message(EXT2_ET_BASE)); 1201 exit(0); 1202 } 1203 1204 /* 1205 * If there's no blocksize specified and there is a journal 1206 * device, use it to figure out the blocksize 1207 */ 1208 if (blocksize <= 0 && journal_device) { 1209 ext2_filsys jfs; 1210 io_manager io_ptr; 1211 1212#ifdef CONFIG_TESTIO_DEBUG 1213 io_ptr = test_io_manager; 1214 test_io_backing_manager = unix_io_manager; 1215#else 1216 io_ptr = unix_io_manager; 1217#endif 1218 retval = ext2fs_open(journal_device, 1219 EXT2_FLAG_JOURNAL_DEV_OK, 0, 1220 0, io_ptr, &jfs); 1221 if (retval) { 1222 com_err(program_name, retval, 1223 _("while trying to open journal device %s\n"), 1224 journal_device); 1225 exit(1); 1226 } 1227 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) { 1228 com_err(program_name, 0, 1229 _("Journal dev blocksize (%d) smaller than " 1230 "minimum blocksize %d\n"), jfs->blocksize, 1231 -blocksize); 1232 exit(1); 1233 } 1234 blocksize = jfs->blocksize; 1235 fs_param.s_log_block_size = 1236 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE); 1237 ext2fs_close(jfs); 1238 } 1239 1240 if (blocksize > sys_page_size) { 1241 if (!force) { 1242 com_err(program_name, 0, 1243 _("%d-byte blocks too big for system (max %d)"), 1244 blocksize, sys_page_size); 1245 proceed_question(); 1246 } 1247 fprintf(stderr, _("Warning: %d-byte blocks too big for system " 1248 "(max %d), forced to continue\n"), 1249 blocksize, sys_page_size); 1250 } 1251 if (optind < argc) { 1252 fs_param.s_blocks_count = parse_num_blocks(argv[optind++], 1253 fs_param.s_log_block_size); 1254 if (!fs_param.s_blocks_count) { 1255 com_err(program_name, 0, _("invalid blocks count - %s"), 1256 argv[optind - 1]); 1257 exit(1); 1258 } 1259 } 1260 if (optind < argc) 1261 usage(); 1262 1263 if (!force) 1264 check_plausibility(device_name); 1265 check_mount(device_name, force, _("filesystem")); 1266 1267 fs_param.s_log_frag_size = fs_param.s_log_block_size; 1268 1269 if (noaction && fs_param.s_blocks_count) { 1270 dev_size = fs_param.s_blocks_count; 1271 retval = 0; 1272 } else { 1273 retry: 1274 retval = ext2fs_get_device_size(device_name, 1275 EXT2_BLOCK_SIZE(&fs_param), 1276 &dev_size); 1277 if ((retval == EFBIG) && 1278 (blocksize == 0) && 1279 (fs_param.s_log_block_size == 0)) { 1280 fs_param.s_log_block_size = 2; 1281 blocksize = 4096; 1282 goto retry; 1283 } 1284 } 1285 1286 if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) { 1287 com_err(program_name, retval, 1288 _("while trying to determine filesystem size")); 1289 exit(1); 1290 } 1291 if (!fs_param.s_blocks_count) { 1292 if (retval == EXT2_ET_UNIMPLEMENTED) { 1293 com_err(program_name, 0, 1294 _("Couldn't determine device size; you " 1295 "must specify\nthe size of the " 1296 "filesystem\n")); 1297 exit(1); 1298 } else { 1299 if (dev_size == 0) { 1300 com_err(program_name, 0, 1301 _("Device size reported to be zero. " 1302 "Invalid partition specified, or\n\t" 1303 "partition table wasn't reread " 1304 "after running fdisk, due to\n\t" 1305 "a modified partition being busy " 1306 "and in use. You may need to reboot\n\t" 1307 "to re-read your partition table.\n" 1308 )); 1309 exit(1); 1310 } 1311 fs_param.s_blocks_count = dev_size; 1312 if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param)) 1313 fs_param.s_blocks_count &= ~((sys_page_size / 1314 EXT2_BLOCK_SIZE(&fs_param))-1); 1315 } 1316 1317 } else if (!force && (fs_param.s_blocks_count > dev_size)) { 1318 com_err(program_name, 0, 1319 _("Filesystem larger than apparent device size.")); 1320 proceed_question(); 1321 } 1322 1323 if (!fs_type) { 1324 int megs = (__u64)fs_param.s_blocks_count * 1325 (EXT2_BLOCK_SIZE(&fs_param) / 1024) / 1024; 1326 1327 if (fs_param.s_feature_incompat & 1328 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) 1329 fs_type = "journal"; 1330 else if (megs <= 3) 1331 fs_type = "floppy"; 1332 else if (megs <= 512) 1333 fs_type = "small"; 1334 else 1335 fs_type = "default"; 1336 } 1337 1338 /* Figure out what features should be enabled */ 1339 1340 tmp = tmp2 = NULL; 1341 if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) { 1342 profile_get_string(profile, "defaults", "base_features", 0, 1343 "sparse_super,filetype,resize_inode,dir_index", 1344 &tmp); 1345 profile_get_string(profile, "fs_types", fs_type, 1346 "base_features", tmp, &tmp2); 1347 edit_feature(tmp2, &fs_param.s_feature_compat); 1348 free(tmp); 1349 free(tmp2); 1350 1351 tmp = tmp2 = NULL; 1352 profile_get_string(profile, "defaults", "default_features", 0, 1353 "", &tmp); 1354 profile_get_string(profile, "fs_types", fs_type, 1355 "default_features", tmp, &tmp2); 1356 } 1357 edit_feature(fs_features ? fs_features : tmp2, 1358 &fs_param.s_feature_compat); 1359 if (tmp) 1360 free(tmp); 1361 if (tmp2) 1362 free(tmp2); 1363 1364 if (r_opt == EXT2_GOOD_OLD_REV && 1365 (fs_param.s_feature_compat || fs_param.s_feature_incompat || 1366 fs_param.s_feature_incompat)) { 1367 fprintf(stderr, _("Filesystem features not supported " 1368 "with revision 0 filesystems\n")); 1369 exit(1); 1370 } 1371 1372 if (s_opt > 0) { 1373 if (r_opt == EXT2_GOOD_OLD_REV) { 1374 fprintf(stderr, _("Sparse superblocks not supported " 1375 "with revision 0 filesystems\n")); 1376 exit(1); 1377 } 1378 fs_param.s_feature_ro_compat |= 1379 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER; 1380 } else if (s_opt == 0) 1381 fs_param.s_feature_ro_compat &= 1382 ~EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER; 1383 1384 if (journal_size != 0) { 1385 if (r_opt == EXT2_GOOD_OLD_REV) { 1386 fprintf(stderr, _("Journals not supported " 1387 "with revision 0 filesystems\n")); 1388 exit(1); 1389 } 1390 fs_param.s_feature_compat |= 1391 EXT3_FEATURE_COMPAT_HAS_JOURNAL; 1392 } 1393 1394 if (fs_param.s_feature_incompat & 1395 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) { 1396 reserved_ratio = 0; 1397 fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV; 1398 fs_param.s_feature_compat = 0; 1399 fs_param.s_feature_ro_compat = 0; 1400 } 1401 1402 /* Set first meta blockgroup via an environment variable */ 1403 /* (this is mostly for debugging purposes) */ 1404 if ((fs_param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) && 1405 ((tmp = getenv("MKE2FS_FIRST_META_BG")))) 1406 fs_param.s_first_meta_bg = atoi(tmp); 1407 1408 /* Get the hardware sector size, if available */ 1409 retval = ext2fs_get_device_sectsize(device_name, §or_size); 1410 if (retval) { 1411 com_err(program_name, retval, 1412 _("while trying to determine hardware sector size")); 1413 exit(1); 1414 } 1415 1416 if ((tmp = getenv("MKE2FS_DEVICE_SECTSIZE")) != NULL) 1417 sector_size = atoi(tmp); 1418 1419 if (blocksize <= 0) { 1420 profile_get_integer(profile, "defaults", "blocksize", 0, 1421 4096, &use_bsize); 1422 profile_get_integer(profile, "fs_types", fs_type, 1423 "blocksize", use_bsize, &use_bsize); 1424 1425 if (use_bsize == -1) { 1426 use_bsize = sys_page_size; 1427 if ((linux_version_code < (2*65536 + 6*256)) && 1428 (use_bsize > 4096)) 1429 use_bsize = 4096; 1430 } 1431 if (sector_size && use_bsize < sector_size) 1432 use_bsize = sector_size; 1433 if ((blocksize < 0) && (use_bsize < (-blocksize))) 1434 use_bsize = -blocksize; 1435 blocksize = use_bsize; 1436 fs_param.s_blocks_count /= blocksize / 1024; 1437 } 1438 1439 if (inode_ratio == 0) { 1440 profile_get_integer(profile, "defaults", "inode_ratio", 0, 1441 8192, &inode_ratio); 1442 profile_get_integer(profile, "fs_types", fs_type, 1443 "inode_ratio", inode_ratio, 1444 &inode_ratio); 1445 1446 if (inode_ratio < blocksize) 1447 inode_ratio = blocksize; 1448 } 1449 1450 fs_param.s_log_frag_size = fs_param.s_log_block_size = 1451 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE); 1452 1453 blocksize = EXT2_BLOCK_SIZE(&fs_param); 1454 1455 if (extended_opts) 1456 parse_extended_opts(&fs_param, extended_opts); 1457 1458 /* Since sparse_super is the default, we would only have a problem 1459 * here if it was explicitly disabled. 1460 */ 1461 if ((fs_param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE) && 1462 !(fs_param.s_feature_ro_compat&EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)) { 1463 com_err(program_name, 0, 1464 _("reserved online resize blocks not supported " 1465 "on non-sparse filesystem")); 1466 exit(1); 1467 } 1468 1469 if (fs_param.s_blocks_per_group) { 1470 if (fs_param.s_blocks_per_group < 256 || 1471 fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) { 1472 com_err(program_name, 0, 1473 _("blocks per group count out of range")); 1474 exit(1); 1475 } 1476 } 1477 1478 if (!force && fs_param.s_blocks_count >= ((unsigned) 1 << 31)) { 1479 com_err(program_name, 0, 1480 _("Filesystem too large. No more than 2**31-1 blocks\n" 1481 "\t (8TB using a blocksize of 4k) are currently supported.")); 1482 exit(1); 1483 } 1484 1485 if ((blocksize > 4096) && 1486 (fs_param.s_feature_compat & EXT3_FEATURE_COMPAT_HAS_JOURNAL)) 1487 fprintf(stderr, _("\nWarning: some 2.4 kernels do not support " 1488 "blocksizes greater than 4096\n\tusing ext3. " 1489 "Use -b 4096 if this is an issue for you.\n\n")); 1490 1491 if (inode_size == 0) { 1492 profile_get_integer(profile, "defaults", "inode_size", NULL, 1493 0, &inode_size); 1494 profile_get_integer(profile, "fs_types", fs_type, 1495 "inode_size", inode_size, 1496 &inode_size); 1497 } 1498 1499 if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) { 1500 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE || 1501 inode_size > EXT2_BLOCK_SIZE(&fs_param) || 1502 inode_size & (inode_size - 1)) { 1503 com_err(program_name, 0, 1504 _("invalid inode size %d (min %d/max %d)"), 1505 inode_size, EXT2_GOOD_OLD_INODE_SIZE, 1506 blocksize); 1507 exit(1); 1508 } 1509 if (inode_size != EXT2_GOOD_OLD_INODE_SIZE) 1510 fprintf(stderr, _("Warning: %d-byte inodes not usable " 1511 "on older systems\n"), 1512 inode_size); 1513 fs_param.s_inode_size = inode_size; 1514 } 1515 1516 /* Make sure number of inodes specified will fit in 32 bits */ 1517 if (num_inodes == 0) { 1518 unsigned long long n; 1519 n = (unsigned long long) fs_param.s_blocks_count * blocksize / inode_ratio; 1520 if (n > ~0U) { 1521 com_err(program_name, 0, 1522 _("too many inodes (%llu), raise inode ratio?"), n); 1523 exit(1); 1524 } 1525 } else if (num_inodes > ~0U) { 1526 com_err(program_name, 0, 1527 _("too many inodes (%llu), specify < 2^32 inodes"), 1528 num_inodes); 1529 exit(1); 1530 } 1531 /* 1532 * Calculate number of inodes based on the inode ratio 1533 */ 1534 fs_param.s_inodes_count = num_inodes ? num_inodes : 1535 ((__u64) fs_param.s_blocks_count * blocksize) 1536 / inode_ratio; 1537 1538 if ((((long long)fs_param.s_inodes_count) * 1539 (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >= 1540 (((long long)fs_param.s_blocks_count) * 1541 EXT2_BLOCK_SIZE(&fs_param))) { 1542 com_err(program_name, 0, _("inode_size (%u) * inodes_count " 1543 "(%u) too big for a\n\t" 1544 "filesystem with %lu blocks, " 1545 "specify higher inode_ratio (-i)\n\t" 1546 "or lower inode count (-N).\n"), 1547 inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE, 1548 fs_param.s_inodes_count, 1549 (unsigned long) fs_param.s_blocks_count); 1550 exit(1); 1551 } 1552 1553 /* 1554 * Calculate number of blocks to reserve 1555 */ 1556 fs_param.s_r_blocks_count = e2p_percent(reserved_ratio, 1557 fs_param.s_blocks_count); 1558} 1559 1560int main (int argc, char *argv[]) 1561{ 1562 errcode_t retval = 0; 1563 ext2_filsys fs; 1564 badblocks_list bb_list = 0; 1565 int journal_blocks; 1566 unsigned int i; 1567 int val; 1568 io_manager io_ptr; 1569 1570#ifdef ENABLE_NLS 1571 setlocale(LC_MESSAGES, ""); 1572 setlocale(LC_CTYPE, ""); 1573 bindtextdomain(NLS_CAT_NAME, LOCALEDIR); 1574 textdomain(NLS_CAT_NAME); 1575#endif 1576 PRS(argc, argv); 1577 1578#ifdef CONFIG_TESTIO_DEBUG 1579 io_ptr = test_io_manager; 1580 test_io_backing_manager = unix_io_manager; 1581#else 1582 io_ptr = unix_io_manager; 1583#endif 1584 1585 /* 1586 * Initialize the superblock.... 1587 */ 1588 retval = ext2fs_initialize(device_name, EXT2_FLAG_EXCLUSIVE, &fs_param, 1589 io_ptr, &fs); 1590 if (retval) { 1591 com_err(device_name, retval, _("while setting up superblock")); 1592 exit(1); 1593 } 1594 1595 if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS) 1596 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS; 1597 1598 /* 1599 * Wipe out the old on-disk superblock 1600 */ 1601 if (!noaction) 1602 zap_sector(fs, 2, 6); 1603 1604 /* 1605 * Generate a UUID for it... 1606 */ 1607 uuid_generate(fs->super->s_uuid); 1608 1609 /* 1610 * Initialize the directory index variables 1611 */ 1612 fs->super->s_def_hash_version = EXT2_HASH_TEA; 1613 uuid_generate((unsigned char *) fs->super->s_hash_seed); 1614 1615 /* 1616 * Add "jitter" to the superblock's check interval so that we 1617 * don't check all the filesystems at the same time. We use a 1618 * kludgy hack of using the UUID to derive a random jitter value. 1619 */ 1620 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++) 1621 val += fs->super->s_uuid[i]; 1622 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT; 1623 1624 /* 1625 * Override the creator OS, if applicable 1626 */ 1627 if (creator_os && !set_os(fs->super, creator_os)) { 1628 com_err (program_name, 0, _("unknown os - %s"), creator_os); 1629 exit(1); 1630 } 1631 1632 /* 1633 * For the Hurd, we will turn off filetype since it doesn't 1634 * support it. 1635 */ 1636 if (fs->super->s_creator_os == EXT2_OS_HURD) 1637 fs->super->s_feature_incompat &= 1638 ~EXT2_FEATURE_INCOMPAT_FILETYPE; 1639 1640 /* 1641 * Set the volume label... 1642 */ 1643 if (volume_label) { 1644 memset(fs->super->s_volume_name, 0, 1645 sizeof(fs->super->s_volume_name)); 1646 strncpy(fs->super->s_volume_name, volume_label, 1647 sizeof(fs->super->s_volume_name)); 1648 } 1649 1650 /* 1651 * Set the last mount directory 1652 */ 1653 if (mount_dir) { 1654 memset(fs->super->s_last_mounted, 0, 1655 sizeof(fs->super->s_last_mounted)); 1656 strncpy(fs->super->s_last_mounted, mount_dir, 1657 sizeof(fs->super->s_last_mounted)); 1658 } 1659 1660 if (!quiet || noaction) 1661 show_stats(fs); 1662 1663 if (noaction) 1664 exit(0); 1665 1666 if (fs->super->s_feature_incompat & 1667 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) { 1668 create_journal_dev(fs); 1669 exit(ext2fs_close(fs) ? 1 : 0); 1670 } 1671 1672 if (bad_blocks_filename) 1673 read_bb_file(fs, &bb_list, bad_blocks_filename); 1674 if (cflag) 1675 test_disk(fs, &bb_list); 1676 1677 handle_bad_blocks(fs, bb_list); 1678 fs->stride = fs_stride = fs->super->s_raid_stride; 1679 retval = ext2fs_allocate_tables(fs); 1680 if (retval) { 1681 com_err(program_name, retval, 1682 _("while trying to allocate filesystem tables")); 1683 exit(1); 1684 } 1685 if (super_only) { 1686 fs->super->s_state |= EXT2_ERROR_FS; 1687 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY); 1688 } else { 1689 /* rsv must be a power of two (64kB is MD RAID sb alignment) */ 1690 unsigned int rsv = 65536 / fs->blocksize; 1691 unsigned long blocks = fs->super->s_blocks_count; 1692 unsigned long start; 1693 blk_t ret_blk; 1694 1695#ifdef ZAP_BOOTBLOCK 1696 zap_sector(fs, 0, 2); 1697#endif 1698 1699 /* 1700 * Wipe out any old MD RAID (or other) metadata at the end 1701 * of the device. This will also verify that the device is 1702 * as large as we think. Be careful with very small devices. 1703 */ 1704 start = (blocks & ~(rsv - 1)); 1705 if (start > rsv) 1706 start -= rsv; 1707 if (start > 0) 1708 retval = zero_blocks(fs, start, blocks - start, 1709 NULL, &ret_blk, NULL); 1710 1711 if (retval) { 1712 com_err(program_name, retval, 1713 _("while zeroing block %u at end of filesystem"), 1714 ret_blk); 1715 } 1716 setup_lazy_bg(fs); 1717 write_inode_tables(fs); 1718 create_root_dir(fs); 1719 create_lost_and_found(fs); 1720 reserve_inodes(fs); 1721 create_bad_block_inode(fs, bb_list); 1722 if (fs->super->s_feature_compat & 1723 EXT2_FEATURE_COMPAT_RESIZE_INODE) { 1724 retval = ext2fs_create_resize_inode(fs); 1725 if (retval) { 1726 com_err("ext2fs_create_resize_inode", retval, 1727 _("while reserving blocks for online resize")); 1728 exit(1); 1729 } 1730 } 1731 } 1732 1733 if (journal_device) { 1734 ext2_filsys jfs; 1735 1736 if (!force) 1737 check_plausibility(journal_device); 1738 check_mount(journal_device, force, _("journal")); 1739 1740 retval = ext2fs_open(journal_device, EXT2_FLAG_RW| 1741 EXT2_FLAG_JOURNAL_DEV_OK, 0, 1742 fs->blocksize, unix_io_manager, &jfs); 1743 if (retval) { 1744 com_err(program_name, retval, 1745 _("while trying to open journal device %s\n"), 1746 journal_device); 1747 exit(1); 1748 } 1749 if (!quiet) { 1750 printf(_("Adding journal to device %s: "), 1751 journal_device); 1752 fflush(stdout); 1753 } 1754 retval = ext2fs_add_journal_device(fs, jfs); 1755 if(retval) { 1756 com_err (program_name, retval, 1757 _("\n\twhile trying to add journal to device %s"), 1758 journal_device); 1759 exit(1); 1760 } 1761 if (!quiet) 1762 printf(_("done\n")); 1763 ext2fs_close(jfs); 1764 free(journal_device); 1765 } else if ((journal_size) || 1766 (fs_param.s_feature_compat & 1767 EXT3_FEATURE_COMPAT_HAS_JOURNAL)) { 1768 journal_blocks = figure_journal_size(journal_size, fs); 1769 1770 if (!journal_blocks) { 1771 fs->super->s_feature_compat &= 1772 ~EXT3_FEATURE_COMPAT_HAS_JOURNAL; 1773 goto no_journal; 1774 } 1775 if (!quiet) { 1776 printf(_("Creating journal (%d blocks): "), 1777 journal_blocks); 1778 fflush(stdout); 1779 } 1780 retval = ext2fs_add_journal_inode(fs, journal_blocks, 1781 journal_flags); 1782 if (retval) { 1783 com_err (program_name, retval, 1784 _("\n\twhile trying to create journal")); 1785 exit(1); 1786 } 1787 if (!quiet) 1788 printf(_("done\n")); 1789 } 1790no_journal: 1791 1792 if (!quiet) 1793 printf(_("Writing superblocks and " 1794 "filesystem accounting information: ")); 1795 retval = ext2fs_flush(fs); 1796 if (retval) { 1797 fprintf(stderr, 1798 _("\nWarning, had trouble writing out superblocks.")); 1799 } 1800 if (!quiet) { 1801 printf(_("done\n\n")); 1802 if (!getenv("MKE2FS_SKIP_CHECK_MSG")) 1803 print_check_message(fs); 1804 } 1805 val = ext2fs_close(fs); 1806 remove_error_table(&et_ext2_error_table); 1807 remove_error_table(&et_prof_error_table); 1808 return (retval || val) ? 1 : 0; 1809} 1810