mke2fs.c revision 22d8ce512ffcdb9d6a16e1d34f65aa37ce1ab3d3
1/* 2 * mke2fs.c - Make a ext2fs filesystem. 3 * 4 * Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 5 * 2003, 2004, 2005 by Theodore Ts'o. 6 * 7 * %Begin-Header% 8 * This file may be redistributed under the terms of the GNU Public 9 * License. 10 * %End-Header% 11 */ 12 13/* Usage: mke2fs [options] device 14 * 15 * The device may be a block device or a image of one, but this isn't 16 * enforced (but it's not much fun on a character device :-). 17 */ 18 19#define _XOPEN_SOURCE 600 /* for inclusion of PATH_MAX in Solaris */ 20 21#include <stdio.h> 22#include <string.h> 23#include <strings.h> 24#include <fcntl.h> 25#include <ctype.h> 26#include <time.h> 27#ifdef __linux__ 28#include <sys/utsname.h> 29#endif 30#ifdef HAVE_GETOPT_H 31#include <getopt.h> 32#else 33extern char *optarg; 34extern int optind; 35#endif 36#ifdef HAVE_UNISTD_H 37#include <unistd.h> 38#endif 39#ifdef HAVE_STDLIB_H 40#include <stdlib.h> 41#endif 42#ifdef HAVE_ERRNO_H 43#include <errno.h> 44#endif 45#ifdef HAVE_MNTENT_H 46#include <mntent.h> 47#endif 48#include <sys/ioctl.h> 49#include <sys/types.h> 50#include <sys/stat.h> 51#include <libgen.h> 52#include <limits.h> 53#include <blkid/blkid.h> 54 55#include "ext2fs/ext2_fs.h" 56#include "ext2fs/ext2fsP.h" 57#include "et/com_err.h" 58#include "uuid/uuid.h" 59#include "e2p/e2p.h" 60#include "ext2fs/ext2fs.h" 61#include "util.h" 62#include "profile.h" 63#include "prof_err.h" 64#include "../version.h" 65#include "nls-enable.h" 66 67#define STRIDE_LENGTH 8 68 69#define MAX_32_NUM ((((unsigned long long) 1) << 32) - 1) 70 71#ifndef __sparc__ 72#define ZAP_BOOTBLOCK 73#endif 74 75extern int isatty(int); 76extern FILE *fpopen(const char *cmd, const char *mode); 77 78const char * program_name = "mke2fs"; 79const char * device_name /* = NULL */; 80 81/* Command line options */ 82int cflag; 83int verbose; 84int quiet; 85int super_only; 86int discard = 1; /* attempt to discard device before fs creation */ 87int force; 88int noaction; 89int journal_size; 90int journal_flags; 91int lazy_itable_init; 92char *bad_blocks_filename; 93__u32 fs_stride; 94 95struct ext2_super_block fs_param; 96char *fs_uuid = NULL; 97char *creator_os; 98char *volume_label; 99char *mount_dir; 100char *journal_device; 101int sync_kludge; /* Set using the MKE2FS_SYNC env. option */ 102char **fs_types; 103 104profile_t profile; 105 106int sys_page_size = 4096; 107int linux_version_code = 0; 108 109static void usage(void) 110{ 111 fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] " 112 "[-f fragment-size]\n\t[-i bytes-per-inode] [-I inode-size] " 113 "[-J journal-options]\n" 114 "\t[-G meta group size] [-N number-of-inodes]\n" 115 "\t[-m reserved-blocks-percentage] [-o creator-os]\n" 116 "\t[-g blocks-per-group] [-L volume-label] " 117 "[-M last-mounted-directory]\n\t[-O feature[,...]] " 118 "[-r fs-revision] [-E extended-option[,...]]\n" 119 "\t[-T fs-type] [-U UUID] [-jnqvFKSV] device [blocks-count]\n"), 120 program_name); 121 exit(1); 122} 123 124static int int_log2(unsigned long long arg) 125{ 126 int l = 0; 127 128 arg >>= 1; 129 while (arg) { 130 l++; 131 arg >>= 1; 132 } 133 return l; 134} 135 136static int int_log10(unsigned long long arg) 137{ 138 int l; 139 140 for (l=0; arg ; l++) 141 arg = arg / 10; 142 return l; 143} 144 145static int parse_version_number(const char *s) 146{ 147 int major, minor, rev; 148 char *endptr; 149 const char *cp = s; 150 151 if (!s) 152 return 0; 153 major = strtol(cp, &endptr, 10); 154 if (cp == endptr || *endptr != '.') 155 return 0; 156 cp = endptr + 1; 157 minor = strtol(cp, &endptr, 10); 158 if (cp == endptr || *endptr != '.') 159 return 0; 160 cp = endptr + 1; 161 rev = strtol(cp, &endptr, 10); 162 if (cp == endptr) 163 return 0; 164 return ((((major * 256) + minor) * 256) + rev); 165} 166 167/* 168 * Helper function for read_bb_file and test_disk 169 */ 170static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk) 171{ 172 fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk); 173 return; 174} 175 176/* 177 * Reads the bad blocks list from a file 178 */ 179static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list, 180 const char *bad_blocks_file) 181{ 182 FILE *f; 183 errcode_t retval; 184 185 f = fopen(bad_blocks_file, "r"); 186 if (!f) { 187 com_err("read_bad_blocks_file", errno, 188 _("while trying to open %s"), bad_blocks_file); 189 exit(1); 190 } 191 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block); 192 fclose (f); 193 if (retval) { 194 com_err("ext2fs_read_bb_FILE", retval, 195 _("while reading in list of bad blocks from file")); 196 exit(1); 197 } 198} 199 200/* 201 * Runs the badblocks program to test the disk 202 */ 203static void test_disk(ext2_filsys fs, badblocks_list *bb_list) 204{ 205 FILE *f; 206 errcode_t retval; 207 char buf[1024]; 208 209 sprintf(buf, "badblocks -b %d -X %s%s%s %llu", fs->blocksize, 210 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "", 211 fs->device_name, ext2fs_blocks_count(fs->super)-1); 212 if (verbose) 213 printf(_("Running command: %s\n"), buf); 214 f = popen(buf, "r"); 215 if (!f) { 216 com_err("popen", errno, 217 _("while trying to run '%s'"), buf); 218 exit(1); 219 } 220 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block); 221 pclose(f); 222 if (retval) { 223 com_err("ext2fs_read_bb_FILE", retval, 224 _("while processing list of bad blocks from program")); 225 exit(1); 226 } 227} 228 229static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list) 230{ 231 dgrp_t i; 232 blk_t j; 233 unsigned must_be_good; 234 blk_t blk; 235 badblocks_iterate bb_iter; 236 errcode_t retval; 237 blk_t group_block; 238 int group; 239 int group_bad; 240 241 if (!bb_list) 242 return; 243 244 /* 245 * The primary superblock and group descriptors *must* be 246 * good; if not, abort. 247 */ 248 must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks; 249 for (i = fs->super->s_first_data_block; i <= must_be_good; i++) { 250 if (ext2fs_badblocks_list_test(bb_list, i)) { 251 fprintf(stderr, _("Block %d in primary " 252 "superblock/group descriptor area bad.\n"), i); 253 fprintf(stderr, _("Blocks %u through %u must be good " 254 "in order to build a filesystem.\n"), 255 fs->super->s_first_data_block, must_be_good); 256 fputs(_("Aborting....\n"), stderr); 257 exit(1); 258 } 259 } 260 261 /* 262 * See if any of the bad blocks are showing up in the backup 263 * superblocks and/or group descriptors. If so, issue a 264 * warning and adjust the block counts appropriately. 265 */ 266 group_block = fs->super->s_first_data_block + 267 fs->super->s_blocks_per_group; 268 269 for (i = 1; i < fs->group_desc_count; i++) { 270 group_bad = 0; 271 for (j=0; j < fs->desc_blocks+1; j++) { 272 if (ext2fs_badblocks_list_test(bb_list, 273 group_block + j)) { 274 if (!group_bad) 275 fprintf(stderr, 276_("Warning: the backup superblock/group descriptors at block %u contain\n" 277" bad blocks.\n\n"), 278 group_block); 279 group_bad++; 280 group = ext2fs_group_of_blk2(fs, group_block+j); 281 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1); 282 ext2fs_group_desc_csum_set(fs, group); 283 ext2fs_free_blocks_count_add(fs->super, 1); 284 } 285 } 286 group_block += fs->super->s_blocks_per_group; 287 } 288 289 /* 290 * Mark all the bad blocks as used... 291 */ 292 retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter); 293 if (retval) { 294 com_err("ext2fs_badblocks_list_iterate_begin", retval, 295 _("while marking bad blocks as used")); 296 exit(1); 297 } 298 while (ext2fs_badblocks_list_iterate(bb_iter, &blk)) 299 ext2fs_mark_block_bitmap2(fs->block_map, blk); 300 ext2fs_badblocks_list_iterate_end(bb_iter); 301} 302 303static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed) 304{ 305 errcode_t retval; 306 blk64_t blk; 307 dgrp_t i; 308 int num; 309 struct ext2fs_numeric_progress_struct progress; 310 311 ext2fs_numeric_progress_init(fs, &progress, 312 _("Writing inode tables: "), 313 fs->group_desc_count); 314 315 for (i = 0; i < fs->group_desc_count; i++) { 316 ext2fs_numeric_progress_update(fs, &progress, i); 317 318 blk = ext2fs_inode_table_loc(fs, i); 319 num = fs->inode_blocks_per_group; 320 321 if (lazy_flag) 322 num = ext2fs_div_ceil((fs->super->s_inodes_per_group - 323 ext2fs_bg_itable_unused(fs, i)) * 324 EXT2_INODE_SIZE(fs->super), 325 EXT2_BLOCK_SIZE(fs->super)); 326 if (!lazy_flag || itable_zeroed) { 327 /* The kernel doesn't need to zero the itable blocks */ 328 ext2fs_bg_flags_set(fs, i, EXT2_BG_INODE_ZEROED); 329 ext2fs_group_desc_csum_set(fs, i); 330 } 331 retval = ext2fs_zero_blocks2(fs, blk, num, &blk, &num); 332 if (retval) { 333 fprintf(stderr, _("\nCould not write %d " 334 "blocks in inode table starting at %llu: %s\n"), 335 num, blk, error_message(retval)); 336 exit(1); 337 } 338 if (sync_kludge) { 339 if (sync_kludge == 1) 340 sync(); 341 else if ((i % sync_kludge) == 0) 342 sync(); 343 } 344 } 345 ext2fs_zero_blocks2(0, 0, 0, 0, 0); 346 ext2fs_numeric_progress_close(fs, &progress, 347 _("done \n")); 348} 349 350static void create_root_dir(ext2_filsys fs) 351{ 352 errcode_t retval; 353 struct ext2_inode inode; 354 __u32 uid, gid; 355 356 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0); 357 if (retval) { 358 com_err("ext2fs_mkdir", retval, _("while creating root dir")); 359 exit(1); 360 } 361 if (geteuid()) { 362 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode); 363 if (retval) { 364 com_err("ext2fs_read_inode", retval, 365 _("while reading root inode")); 366 exit(1); 367 } 368 uid = getuid(); 369 inode.i_uid = uid; 370 ext2fs_set_i_uid_high(inode, uid >> 16); 371 if (uid) { 372 gid = getgid(); 373 inode.i_gid = gid; 374 ext2fs_set_i_gid_high(inode, gid >> 16); 375 } 376 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode); 377 if (retval) { 378 com_err("ext2fs_write_inode", retval, 379 _("while setting root inode ownership")); 380 exit(1); 381 } 382 } 383} 384 385static void create_lost_and_found(ext2_filsys fs) 386{ 387 unsigned int lpf_size = 0; 388 errcode_t retval; 389 ext2_ino_t ino; 390 const char *name = "lost+found"; 391 int i; 392 393 fs->umask = 077; 394 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name); 395 if (retval) { 396 com_err("ext2fs_mkdir", retval, 397 _("while creating /lost+found")); 398 exit(1); 399 } 400 401 retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino); 402 if (retval) { 403 com_err("ext2_lookup", retval, 404 _("while looking up /lost+found")); 405 exit(1); 406 } 407 408 for (i=1; i < EXT2_NDIR_BLOCKS; i++) { 409 /* Ensure that lost+found is at least 2 blocks, so we always 410 * test large empty blocks for big-block filesystems. */ 411 if ((lpf_size += fs->blocksize) >= 16*1024 && 412 lpf_size >= 2 * fs->blocksize) 413 break; 414 retval = ext2fs_expand_dir(fs, ino); 415 if (retval) { 416 com_err("ext2fs_expand_dir", retval, 417 _("while expanding /lost+found")); 418 exit(1); 419 } 420 } 421} 422 423static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list) 424{ 425 errcode_t retval; 426 427 ext2fs_mark_inode_bitmap2(fs->inode_map, EXT2_BAD_INO); 428 ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0); 429 retval = ext2fs_update_bb_inode(fs, bb_list); 430 if (retval) { 431 com_err("ext2fs_update_bb_inode", retval, 432 _("while setting bad block inode")); 433 exit(1); 434 } 435 436} 437 438static void reserve_inodes(ext2_filsys fs) 439{ 440 ext2_ino_t i; 441 442 for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++) 443 ext2fs_inode_alloc_stats2(fs, i, +1, 0); 444 ext2fs_mark_ib_dirty(fs); 445} 446 447#define BSD_DISKMAGIC (0x82564557UL) /* The disk magic number */ 448#define BSD_MAGICDISK (0x57455682UL) /* The disk magic number reversed */ 449#define BSD_LABEL_OFFSET 64 450 451static void zap_sector(ext2_filsys fs, int sect, int nsect) 452{ 453 char *buf; 454 int retval; 455 unsigned int *magic; 456 457 buf = malloc(512*nsect); 458 if (!buf) { 459 printf(_("Out of memory erasing sectors %d-%d\n"), 460 sect, sect + nsect - 1); 461 exit(1); 462 } 463 464 if (sect == 0) { 465 /* Check for a BSD disklabel, and don't erase it if so */ 466 retval = io_channel_read_blk64(fs->io, 0, -512, buf); 467 if (retval) 468 fprintf(stderr, 469 _("Warning: could not read block 0: %s\n"), 470 error_message(retval)); 471 else { 472 magic = (unsigned int *) (buf + BSD_LABEL_OFFSET); 473 if ((*magic == BSD_DISKMAGIC) || 474 (*magic == BSD_MAGICDISK)) 475 return; 476 } 477 } 478 479 memset(buf, 0, 512*nsect); 480 io_channel_set_blksize(fs->io, 512); 481 retval = io_channel_write_blk64(fs->io, sect, -512*nsect, buf); 482 io_channel_set_blksize(fs->io, fs->blocksize); 483 free(buf); 484 if (retval) 485 fprintf(stderr, _("Warning: could not erase sector %d: %s\n"), 486 sect, error_message(retval)); 487} 488 489static void create_journal_dev(ext2_filsys fs) 490{ 491 struct ext2fs_numeric_progress_struct progress; 492 errcode_t retval; 493 char *buf; 494 blk64_t blk, err_blk; 495 int c, count, err_count; 496 497 retval = ext2fs_create_journal_superblock(fs, 498 ext2fs_blocks_count(fs->super), 0, &buf); 499 if (retval) { 500 com_err("create_journal_dev", retval, 501 _("while initializing journal superblock")); 502 exit(1); 503 } 504 ext2fs_numeric_progress_init(fs, &progress, 505 _("Zeroing journal device: "), 506 ext2fs_blocks_count(fs->super)); 507 blk = 0; 508 count = ext2fs_blocks_count(fs->super); 509 while (count > 0) { 510 if (count > 1024) 511 c = 1024; 512 else 513 c = count; 514 retval = ext2fs_zero_blocks2(fs, blk, c, &err_blk, &err_count); 515 if (retval) { 516 com_err("create_journal_dev", retval, 517 _("while zeroing journal device " 518 "(block %llu, count %d)"), 519 err_blk, err_count); 520 exit(1); 521 } 522 blk += c; 523 count -= c; 524 ext2fs_numeric_progress_update(fs, &progress, blk); 525 } 526 ext2fs_zero_blocks2(0, 0, 0, 0, 0); 527 528 retval = io_channel_write_blk64(fs->io, 529 fs->super->s_first_data_block+1, 530 1, buf); 531 if (retval) { 532 com_err("create_journal_dev", retval, 533 _("while writing journal superblock")); 534 exit(1); 535 } 536 ext2fs_numeric_progress_close(fs, &progress, NULL); 537} 538 539static void show_stats(ext2_filsys fs) 540{ 541 struct ext2_super_block *s = fs->super; 542 char buf[80]; 543 char *os; 544 blk64_t group_block; 545 dgrp_t i; 546 int need, col_left; 547 548 if (ext2fs_blocks_count(&fs_param) != ext2fs_blocks_count(s)) 549 fprintf(stderr, _("warning: %llu blocks unused.\n\n"), 550 ext2fs_blocks_count(&fs_param) - ext2fs_blocks_count(s)); 551 552 memset(buf, 0, sizeof(buf)); 553 strncpy(buf, s->s_volume_name, sizeof(s->s_volume_name)); 554 printf(_("Filesystem label=%s\n"), buf); 555 os = e2p_os2string(fs->super->s_creator_os); 556 if (os) 557 printf(_("OS type: %s\n"), os); 558 free(os); 559 printf(_("Block size=%u (log=%u)\n"), fs->blocksize, 560 s->s_log_block_size); 561 printf(_("Fragment size=%u (log=%u)\n"), fs->fragsize, 562 s->s_log_frag_size); 563 printf(_("Stride=%u blocks, Stripe width=%u blocks\n"), 564 s->s_raid_stride, s->s_raid_stripe_width); 565 printf(_("%u inodes, %llu blocks\n"), s->s_inodes_count, 566 ext2fs_blocks_count(s)); 567 printf(_("%llu blocks (%2.2f%%) reserved for the super user\n"), 568 ext2fs_r_blocks_count(s), 569 100.0 * ext2fs_r_blocks_count(s) / ext2fs_blocks_count(s)); 570 printf(_("First data block=%u\n"), s->s_first_data_block); 571 if (s->s_reserved_gdt_blocks) 572 printf(_("Maximum filesystem blocks=%lu\n"), 573 (s->s_reserved_gdt_blocks + fs->desc_blocks) * 574 EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group); 575 if (fs->group_desc_count > 1) 576 printf(_("%u block groups\n"), fs->group_desc_count); 577 else 578 printf(_("%u block group\n"), fs->group_desc_count); 579 printf(_("%u blocks per group, %u fragments per group\n"), 580 s->s_blocks_per_group, s->s_frags_per_group); 581 printf(_("%u inodes per group\n"), s->s_inodes_per_group); 582 583 if (fs->group_desc_count == 1) { 584 printf("\n"); 585 return; 586 } 587 588 printf(_("Superblock backups stored on blocks: ")); 589 group_block = s->s_first_data_block; 590 col_left = 0; 591 for (i = 1; i < fs->group_desc_count; i++) { 592 group_block += s->s_blocks_per_group; 593 if (!ext2fs_bg_has_super(fs, i)) 594 continue; 595 if (i != 1) 596 printf(", "); 597 need = int_log10(group_block) + 2; 598 if (need > col_left) { 599 printf("\n\t"); 600 col_left = 72; 601 } 602 col_left -= need; 603 printf("%llu", group_block); 604 } 605 printf("\n\n"); 606} 607 608/* 609 * Set the S_CREATOR_OS field. Return true if OS is known, 610 * otherwise, 0. 611 */ 612static int set_os(struct ext2_super_block *sb, char *os) 613{ 614 if (isdigit (*os)) 615 sb->s_creator_os = atoi (os); 616 else if (strcasecmp(os, "linux") == 0) 617 sb->s_creator_os = EXT2_OS_LINUX; 618 else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0) 619 sb->s_creator_os = EXT2_OS_HURD; 620 else if (strcasecmp(os, "freebsd") == 0) 621 sb->s_creator_os = EXT2_OS_FREEBSD; 622 else if (strcasecmp(os, "lites") == 0) 623 sb->s_creator_os = EXT2_OS_LITES; 624 else 625 return 0; 626 return 1; 627} 628 629#define PATH_SET "PATH=/sbin" 630 631static void parse_extended_opts(struct ext2_super_block *param, 632 const char *opts) 633{ 634 char *buf, *token, *next, *p, *arg, *badopt = 0; 635 int len; 636 int r_usage = 0; 637 638 len = strlen(opts); 639 buf = malloc(len+1); 640 if (!buf) { 641 fprintf(stderr, 642 _("Couldn't allocate memory to parse options!\n")); 643 exit(1); 644 } 645 strcpy(buf, opts); 646 for (token = buf; token && *token; token = next) { 647 p = strchr(token, ','); 648 next = 0; 649 if (p) { 650 *p = 0; 651 next = p+1; 652 } 653 arg = strchr(token, '='); 654 if (arg) { 655 *arg = 0; 656 arg++; 657 } 658 if (strcmp(token, "stride") == 0) { 659 if (!arg) { 660 r_usage++; 661 badopt = token; 662 continue; 663 } 664 param->s_raid_stride = strtoul(arg, &p, 0); 665 if (*p || (param->s_raid_stride == 0)) { 666 fprintf(stderr, 667 _("Invalid stride parameter: %s\n"), 668 arg); 669 r_usage++; 670 continue; 671 } 672 } else if (strcmp(token, "stripe-width") == 0 || 673 strcmp(token, "stripe_width") == 0) { 674 if (!arg) { 675 r_usage++; 676 badopt = token; 677 continue; 678 } 679 param->s_raid_stripe_width = strtoul(arg, &p, 0); 680 if (*p || (param->s_raid_stripe_width == 0)) { 681 fprintf(stderr, 682 _("Invalid stripe-width parameter: %s\n"), 683 arg); 684 r_usage++; 685 continue; 686 } 687 } else if (!strcmp(token, "resize")) { 688 blk64_t resize; 689 unsigned long bpg, rsv_groups; 690 unsigned long group_desc_count, desc_blocks; 691 unsigned int gdpb, blocksize; 692 int rsv_gdb; 693 694 if (!arg) { 695 r_usage++; 696 badopt = token; 697 continue; 698 } 699 700 resize = parse_num_blocks2(arg, 701 param->s_log_block_size); 702 703 if (resize == 0) { 704 fprintf(stderr, 705 _("Invalid resize parameter: %s\n"), 706 arg); 707 r_usage++; 708 continue; 709 } 710 if (resize <= ext2fs_blocks_count(param)) { 711 fprintf(stderr, 712 _("The resize maximum must be greater " 713 "than the filesystem size.\n")); 714 r_usage++; 715 continue; 716 } 717 718 blocksize = EXT2_BLOCK_SIZE(param); 719 bpg = param->s_blocks_per_group; 720 if (!bpg) 721 bpg = blocksize * 8; 722 gdpb = EXT2_DESC_PER_BLOCK(param); 723 group_desc_count = (__u32) ext2fs_div64_ceil( 724 ext2fs_blocks_count(param), bpg); 725 desc_blocks = (group_desc_count + 726 gdpb - 1) / gdpb; 727 rsv_groups = ext2fs_div64_ceil(resize, bpg); 728 rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) - 729 desc_blocks; 730 if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param)) 731 rsv_gdb = EXT2_ADDR_PER_BLOCK(param); 732 733 if (rsv_gdb > 0) { 734 if (param->s_rev_level == EXT2_GOOD_OLD_REV) { 735 fprintf(stderr, 736 _("On-line resizing not supported with revision 0 filesystems\n")); 737 free(buf); 738 exit(1); 739 } 740 param->s_feature_compat |= 741 EXT2_FEATURE_COMPAT_RESIZE_INODE; 742 743 param->s_reserved_gdt_blocks = rsv_gdb; 744 } 745 } else if (!strcmp(token, "test_fs")) { 746 param->s_flags |= EXT2_FLAGS_TEST_FILESYS; 747 } else if (!strcmp(token, "lazy_itable_init")) { 748 if (arg) 749 lazy_itable_init = strtoul(arg, &p, 0); 750 else 751 lazy_itable_init = 1; 752 } else if (!strcmp(token, "discard")) { 753 discard = 1; 754 } else if (!strcmp(token, "nodiscard")) { 755 discard = 0; 756 } else { 757 r_usage++; 758 badopt = token; 759 } 760 } 761 if (r_usage) { 762 fprintf(stderr, _("\nBad option(s) specified: %s\n\n" 763 "Extended options are separated by commas, " 764 "and may take an argument which\n" 765 "\tis set off by an equals ('=') sign.\n\n" 766 "Valid extended options are:\n" 767 "\tstride=<RAID per-disk data chunk in blocks>\n" 768 "\tstripe-width=<RAID stride * data disks in blocks>\n" 769 "\tresize=<resize maximum size in blocks>\n" 770 "\tlazy_itable_init=<0 to disable, 1 to enable>\n" 771 "\ttest_fs\n" 772 "\tdiscard\n" 773 "\tnodiscard\n\n"), 774 badopt ? badopt : ""); 775 free(buf); 776 exit(1); 777 } 778 if (param->s_raid_stride && 779 (param->s_raid_stripe_width % param->s_raid_stride) != 0) 780 fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even " 781 "multiple of stride %u.\n\n"), 782 param->s_raid_stripe_width, param->s_raid_stride); 783 784 free(buf); 785} 786 787static __u32 ok_features[3] = { 788 /* Compat */ 789 EXT3_FEATURE_COMPAT_HAS_JOURNAL | 790 EXT2_FEATURE_COMPAT_RESIZE_INODE | 791 EXT2_FEATURE_COMPAT_DIR_INDEX | 792 EXT2_FEATURE_COMPAT_EXT_ATTR, 793 /* Incompat */ 794 EXT2_FEATURE_INCOMPAT_FILETYPE| 795 EXT3_FEATURE_INCOMPAT_EXTENTS| 796 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV| 797 EXT2_FEATURE_INCOMPAT_META_BG| 798 EXT4_FEATURE_INCOMPAT_FLEX_BG| 799 EXT4_FEATURE_INCOMPAT_64BIT, 800 /* R/O compat */ 801 EXT2_FEATURE_RO_COMPAT_LARGE_FILE| 802 EXT4_FEATURE_RO_COMPAT_HUGE_FILE| 803 EXT4_FEATURE_RO_COMPAT_DIR_NLINK| 804 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE| 805 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER| 806 EXT4_FEATURE_RO_COMPAT_GDT_CSUM 807}; 808 809 810static void syntax_err_report(const char *filename, long err, int line_num) 811{ 812 fprintf(stderr, 813 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"), 814 filename, line_num, error_message(err)); 815 exit(1); 816} 817 818static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 }; 819 820static void edit_feature(const char *str, __u32 *compat_array) 821{ 822 if (!str) 823 return; 824 825 if (e2p_edit_feature(str, compat_array, ok_features)) { 826 fprintf(stderr, _("Invalid filesystem option set: %s\n"), 827 str); 828 exit(1); 829 } 830} 831 832struct str_list { 833 char **list; 834 int num; 835 int max; 836}; 837 838static errcode_t init_list(struct str_list *sl) 839{ 840 sl->num = 0; 841 sl->max = 0; 842 sl->list = malloc((sl->max+1) * sizeof(char *)); 843 if (!sl->list) 844 return ENOMEM; 845 sl->list[0] = 0; 846 return 0; 847} 848 849static errcode_t push_string(struct str_list *sl, const char *str) 850{ 851 char **new_list; 852 853 if (sl->num >= sl->max) { 854 sl->max += 2; 855 new_list = realloc(sl->list, (sl->max+1) * sizeof(char *)); 856 if (!new_list) 857 return ENOMEM; 858 sl->list = new_list; 859 } 860 sl->list[sl->num] = malloc(strlen(str)+1); 861 if (sl->list[sl->num] == 0) 862 return ENOMEM; 863 strcpy(sl->list[sl->num], str); 864 sl->num++; 865 sl->list[sl->num] = 0; 866 return 0; 867} 868 869static void print_str_list(char **list) 870{ 871 char **cpp; 872 873 for (cpp = list; *cpp; cpp++) { 874 printf("'%s'", *cpp); 875 if (cpp[1]) 876 fputs(", ", stdout); 877 } 878 fputc('\n', stdout); 879} 880 881/* 882 * Return TRUE if the profile has the given subsection 883 */ 884static int profile_has_subsection(profile_t profile, const char *section, 885 const char *subsection) 886{ 887 void *state; 888 const char *names[4]; 889 char *name; 890 int ret = 0; 891 892 names[0] = section; 893 names[1] = subsection; 894 names[2] = 0; 895 896 if (profile_iterator_create(profile, names, 897 PROFILE_ITER_LIST_SECTION | 898 PROFILE_ITER_RELATIONS_ONLY, &state)) 899 return 0; 900 901 if ((profile_iterator(&state, &name, 0) == 0) && name) { 902 free(name); 903 ret = 1; 904 } 905 906 profile_iterator_free(&state); 907 return ret; 908} 909 910static char **parse_fs_type(const char *fs_type, 911 const char *usage_types, 912 struct ext2_super_block *fs_param, 913 blk64_t fs_blocks_count, 914 char *progname) 915{ 916 const char *ext_type = 0; 917 char *parse_str; 918 char *profile_type = 0; 919 char *cp, *t; 920 const char *size_type; 921 struct str_list list; 922 unsigned long long meg; 923 int is_hurd = 0; 924 925 if (init_list(&list)) 926 return 0; 927 928 if (creator_os && (!strcasecmp(creator_os, "GNU") || 929 !strcasecmp(creator_os, "hurd"))) 930 is_hurd = 1; 931 932 if (fs_type) 933 ext_type = fs_type; 934 else if (is_hurd) 935 ext_type = "ext2"; 936 else if (!strcmp(program_name, "mke3fs")) 937 ext_type = "ext3"; 938 else if (progname) { 939 ext_type = strrchr(progname, '/'); 940 if (ext_type) 941 ext_type++; 942 else 943 ext_type = progname; 944 945 if (!strncmp(ext_type, "mkfs.", 5)) { 946 ext_type += 5; 947 if (ext_type[0] == 0) 948 ext_type = 0; 949 } else 950 ext_type = 0; 951 } 952 953 if (!ext_type) { 954 profile_get_string(profile, "defaults", "fs_type", 0, 955 "ext2", &profile_type); 956 ext_type = profile_type; 957 if (!strcmp(ext_type, "ext2") && (journal_size != 0)) 958 ext_type = "ext3"; 959 } 960 961 962 if (!profile_has_subsection(profile, "fs_types", ext_type) && 963 strcmp(ext_type, "ext2")) { 964 printf(_("\nYour mke2fs.conf file does not define the " 965 "%s filesystem type.\n"), ext_type); 966 if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") || 967 !strcmp(ext_type, "ext4dev")) { 968 printf(_("You probably need to install an updated " 969 "mke2fs.conf file.\n\n")); 970 } 971 if (!force) { 972 printf(_("Aborting...\n")); 973 exit(1); 974 } 975 } 976 977 meg = (1024 * 1024) / EXT2_BLOCK_SIZE(fs_param); 978 if (fs_blocks_count < 3 * meg) 979 size_type = "floppy"; 980 else if (fs_blocks_count < 512 * meg) 981 size_type = "small"; 982 else if (fs_blocks_count < 4 * 1024 * 1024 * meg) 983 size_type = "default"; 984 else if (fs_blocks_count < 16 * 1024 * 1024 * meg) 985 size_type = "big"; 986 else 987 size_type = "huge"; 988 989 if (!usage_types) 990 usage_types = size_type; 991 992 parse_str = malloc(usage_types ? strlen(usage_types)+1 : 1); 993 if (!parse_str) { 994 free(list.list); 995 return 0; 996 } 997 if (usage_types) 998 strcpy(parse_str, usage_types); 999 else 1000 *parse_str = '\0'; 1001 1002 if (ext_type) 1003 push_string(&list, ext_type); 1004 cp = parse_str; 1005 while (1) { 1006 t = strchr(cp, ','); 1007 if (t) 1008 *t = '\0'; 1009 1010 if (*cp) { 1011 if (!profile_has_subsection(profile, "fs_types", cp)) 1012 fprintf(stderr, 1013 _("\nWarning: the fs_type %s is not " 1014 "defined in /etc/mke2fs.conf\n\n"), 1015 cp); 1016 else 1017 push_string(&list, cp); 1018 } 1019 if (t) 1020 cp = t+1; 1021 else { 1022 cp = ""; 1023 break; 1024 } 1025 } 1026 free(parse_str); 1027 free(profile_type); 1028 if (is_hurd) 1029 push_string(&list, "hurd"); 1030 return (list.list); 1031} 1032 1033static char *get_string_from_profile(char **fs_types, const char *opt, 1034 const char *def_val) 1035{ 1036 char *ret = 0; 1037 int i; 1038 1039 for (i=0; fs_types[i]; i++); 1040 for (i-=1; i >=0 ; i--) { 1041 profile_get_string(profile, "fs_types", fs_types[i], 1042 opt, 0, &ret); 1043 if (ret) 1044 return ret; 1045 } 1046 profile_get_string(profile, "defaults", opt, 0, def_val, &ret); 1047 return (ret); 1048} 1049 1050static int get_int_from_profile(char **fs_types, const char *opt, int def_val) 1051{ 1052 int ret; 1053 char **cpp; 1054 1055 profile_get_integer(profile, "defaults", opt, 0, def_val, &ret); 1056 for (cpp = fs_types; *cpp; cpp++) 1057 profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret); 1058 return ret; 1059} 1060 1061static int get_bool_from_profile(char **fs_types, const char *opt, int def_val) 1062{ 1063 int ret; 1064 char **cpp; 1065 1066 profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret); 1067 for (cpp = fs_types; *cpp; cpp++) 1068 profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret); 1069 return ret; 1070} 1071 1072extern const char *mke2fs_default_profile; 1073static const char *default_files[] = { "<default>", 0 }; 1074 1075#ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY 1076/* 1077 * Sets the geometry of a device (stripe/stride), and returns the 1078 * device's alignment offset, if any, or a negative error. 1079 */ 1080static int get_device_geometry(const char *file, 1081 struct ext2_super_block *fs_param, 1082 int psector_size) 1083{ 1084 int rc = -1; 1085 int blocksize; 1086 blkid_probe pr; 1087 blkid_topology tp; 1088 unsigned long min_io; 1089 unsigned long opt_io; 1090 struct stat statbuf; 1091 1092 /* Nothing to do for a regular file */ 1093 if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode)) 1094 return 0; 1095 1096 pr = blkid_new_probe_from_filename(file); 1097 if (!pr) 1098 goto out; 1099 1100 tp = blkid_probe_get_topology(pr); 1101 if (!tp) 1102 goto out; 1103 1104 min_io = blkid_topology_get_minimum_io_size(tp); 1105 opt_io = blkid_topology_get_optimal_io_size(tp); 1106 blocksize = EXT2_BLOCK_SIZE(fs_param); 1107 if ((min_io == 0) && (psector_size > blocksize)) 1108 min_io = psector_size; 1109 if ((opt_io == 0) && min_io) 1110 opt_io = min_io; 1111 if ((opt_io == 0) && (psector_size > blocksize)) 1112 opt_io = psector_size; 1113 1114 fs_param->s_raid_stride = min_io / blocksize; 1115 fs_param->s_raid_stripe_width = opt_io / blocksize; 1116 1117 rc = blkid_topology_get_alignment_offset(tp); 1118out: 1119 blkid_free_probe(pr); 1120 return rc; 1121} 1122#endif 1123 1124static void PRS(int argc, char *argv[]) 1125{ 1126 int b, c; 1127 int size; 1128 char *tmp, **cpp; 1129 int blocksize = 0; 1130 int inode_ratio = 0; 1131 int inode_size = 0; 1132 unsigned long flex_bg_size = 0; 1133 double reserved_ratio = 5.0; 1134 int lsector_size = 0, psector_size = 0; 1135 int show_version_only = 0; 1136 unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */ 1137 errcode_t retval; 1138 char * oldpath = getenv("PATH"); 1139 char * extended_opts = 0; 1140 const char * fs_type = 0; 1141 const char * usage_types = 0; 1142 blk64_t dev_size; 1143 blk64_t fs_blocks_count = 0; 1144#ifdef __linux__ 1145 struct utsname ut; 1146#endif 1147 long sysval; 1148 int s_opt = -1, r_opt = -1; 1149 char *fs_features = 0; 1150 int use_bsize; 1151 char *newpath; 1152 int pathlen = sizeof(PATH_SET) + 1; 1153 1154 if (oldpath) 1155 pathlen += strlen(oldpath); 1156 newpath = malloc(pathlen); 1157 strcpy(newpath, PATH_SET); 1158 1159 /* Update our PATH to include /sbin */ 1160 if (oldpath) { 1161 strcat (newpath, ":"); 1162 strcat (newpath, oldpath); 1163 } 1164 putenv (newpath); 1165 1166 tmp = getenv("MKE2FS_SYNC"); 1167 if (tmp) 1168 sync_kludge = atoi(tmp); 1169 1170 /* Determine the system page size if possible */ 1171#ifdef HAVE_SYSCONF 1172#if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE)) 1173#define _SC_PAGESIZE _SC_PAGE_SIZE 1174#endif 1175#ifdef _SC_PAGESIZE 1176 sysval = sysconf(_SC_PAGESIZE); 1177 if (sysval > 0) 1178 sys_page_size = sysval; 1179#endif /* _SC_PAGESIZE */ 1180#endif /* HAVE_SYSCONF */ 1181 1182 if ((tmp = getenv("MKE2FS_CONFIG")) != NULL) 1183 config_fn[0] = tmp; 1184 profile_set_syntax_err_cb(syntax_err_report); 1185 retval = profile_init(config_fn, &profile); 1186 if (retval == ENOENT) { 1187 profile_init(default_files, &profile); 1188 profile_set_default(profile, mke2fs_default_profile); 1189 } 1190 1191 setbuf(stdout, NULL); 1192 setbuf(stderr, NULL); 1193 add_error_table(&et_ext2_error_table); 1194 add_error_table(&et_prof_error_table); 1195 memset(&fs_param, 0, sizeof(struct ext2_super_block)); 1196 fs_param.s_rev_level = 1; /* Create revision 1 filesystems now */ 1197 1198#ifdef __linux__ 1199 if (uname(&ut)) { 1200 perror("uname"); 1201 exit(1); 1202 } 1203 linux_version_code = parse_version_number(ut.release); 1204 if (linux_version_code && linux_version_code < (2*65536 + 2*256)) 1205 fs_param.s_rev_level = 0; 1206#endif 1207 1208 if (argc && *argv) { 1209 program_name = get_progname(*argv); 1210 1211 /* If called as mkfs.ext3, create a journal inode */ 1212 if (!strcmp(program_name, "mkfs.ext3") || 1213 !strcmp(program_name, "mke3fs")) 1214 journal_size = -1; 1215 } 1216 1217 while ((c = getopt (argc, argv, 1218 "b:cf:g:G:i:jl:m:no:qr:s:t:vE:FI:J:KL:M:N:O:R:ST:U:V")) != EOF) { 1219 switch (c) { 1220 case 'b': 1221 blocksize = strtol(optarg, &tmp, 0); 1222 b = (blocksize > 0) ? blocksize : -blocksize; 1223 if (b < EXT2_MIN_BLOCK_SIZE || 1224 b > EXT2_MAX_BLOCK_SIZE || *tmp) { 1225 com_err(program_name, 0, 1226 _("invalid block size - %s"), optarg); 1227 exit(1); 1228 } 1229 if (blocksize > 4096) 1230 fprintf(stderr, _("Warning: blocksize %d not " 1231 "usable on most systems.\n"), 1232 blocksize); 1233 if (blocksize > 0) 1234 fs_param.s_log_block_size = 1235 int_log2(blocksize >> 1236 EXT2_MIN_BLOCK_LOG_SIZE); 1237 break; 1238 case 'c': /* Check for bad blocks */ 1239 cflag++; 1240 break; 1241 case 'f': 1242 size = strtoul(optarg, &tmp, 0); 1243 if (size < EXT2_MIN_BLOCK_SIZE || 1244 size > EXT2_MAX_BLOCK_SIZE || *tmp) { 1245 com_err(program_name, 0, 1246 _("invalid fragment size - %s"), 1247 optarg); 1248 exit(1); 1249 } 1250 fs_param.s_log_frag_size = 1251 int_log2(size >> EXT2_MIN_BLOCK_LOG_SIZE); 1252 fprintf(stderr, _("Warning: fragments not supported. " 1253 "Ignoring -f option\n")); 1254 break; 1255 case 'g': 1256 fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0); 1257 if (*tmp) { 1258 com_err(program_name, 0, 1259 _("Illegal number for blocks per group")); 1260 exit(1); 1261 } 1262 if ((fs_param.s_blocks_per_group % 8) != 0) { 1263 com_err(program_name, 0, 1264 _("blocks per group must be multiple of 8")); 1265 exit(1); 1266 } 1267 break; 1268 case 'G': 1269 flex_bg_size = strtoul(optarg, &tmp, 0); 1270 if (*tmp) { 1271 com_err(program_name, 0, 1272 _("Illegal number for flex_bg size")); 1273 exit(1); 1274 } 1275 if (flex_bg_size < 1 || 1276 (flex_bg_size & (flex_bg_size-1)) != 0) { 1277 com_err(program_name, 0, 1278 _("flex_bg size must be a power of 2")); 1279 exit(1); 1280 } 1281 break; 1282 case 'i': 1283 inode_ratio = strtoul(optarg, &tmp, 0); 1284 if (inode_ratio < EXT2_MIN_BLOCK_SIZE || 1285 inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024 || 1286 *tmp) { 1287 com_err(program_name, 0, 1288 _("invalid inode ratio %s (min %d/max %d)"), 1289 optarg, EXT2_MIN_BLOCK_SIZE, 1290 EXT2_MAX_BLOCK_SIZE * 1024); 1291 exit(1); 1292 } 1293 break; 1294 case 'J': 1295 parse_journal_opts(optarg); 1296 break; 1297 case 'K': 1298 fprintf(stderr, _("Warning: -K option is deprecated and " 1299 "should not be used anymore. Use " 1300 "\'-E nodiscard\' extended option " 1301 "instead!\n")); 1302 discard = 0; 1303 break; 1304 case 'j': 1305 if (!journal_size) 1306 journal_size = -1; 1307 break; 1308 case 'l': 1309 bad_blocks_filename = malloc(strlen(optarg)+1); 1310 if (!bad_blocks_filename) { 1311 com_err(program_name, ENOMEM, 1312 _("in malloc for bad_blocks_filename")); 1313 exit(1); 1314 } 1315 strcpy(bad_blocks_filename, optarg); 1316 break; 1317 case 'm': 1318 reserved_ratio = strtod(optarg, &tmp); 1319 if ( *tmp || reserved_ratio > 50 || 1320 reserved_ratio < 0) { 1321 com_err(program_name, 0, 1322 _("invalid reserved blocks percent - %s"), 1323 optarg); 1324 exit(1); 1325 } 1326 break; 1327 case 'n': 1328 noaction++; 1329 break; 1330 case 'o': 1331 creator_os = optarg; 1332 break; 1333 case 'q': 1334 quiet = 1; 1335 break; 1336 case 'r': 1337 r_opt = strtoul(optarg, &tmp, 0); 1338 if (*tmp) { 1339 com_err(program_name, 0, 1340 _("bad revision level - %s"), optarg); 1341 exit(1); 1342 } 1343 fs_param.s_rev_level = r_opt; 1344 break; 1345 case 's': /* deprecated */ 1346 s_opt = atoi(optarg); 1347 break; 1348 case 'I': 1349 inode_size = strtoul(optarg, &tmp, 0); 1350 if (*tmp) { 1351 com_err(program_name, 0, 1352 _("invalid inode size - %s"), optarg); 1353 exit(1); 1354 } 1355 break; 1356 case 'v': 1357 verbose = 1; 1358 break; 1359 case 'F': 1360 force++; 1361 break; 1362 case 'L': 1363 volume_label = optarg; 1364 break; 1365 case 'M': 1366 mount_dir = optarg; 1367 break; 1368 case 'N': 1369 num_inodes = strtoul(optarg, &tmp, 0); 1370 if (*tmp) { 1371 com_err(program_name, 0, 1372 _("bad num inodes - %s"), optarg); 1373 exit(1); 1374 } 1375 break; 1376 case 'O': 1377 fs_features = optarg; 1378 break; 1379 case 'E': 1380 case 'R': 1381 extended_opts = optarg; 1382 break; 1383 case 'S': 1384 super_only = 1; 1385 break; 1386 case 't': 1387 fs_type = optarg; 1388 break; 1389 case 'T': 1390 usage_types = optarg; 1391 break; 1392 case 'U': 1393 fs_uuid = optarg; 1394 break; 1395 case 'V': 1396 /* Print version number and exit */ 1397 show_version_only++; 1398 break; 1399 default: 1400 usage(); 1401 } 1402 } 1403 if ((optind == argc) && !show_version_only) 1404 usage(); 1405 device_name = argv[optind++]; 1406 1407 if (!quiet || show_version_only) 1408 fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION, 1409 E2FSPROGS_DATE); 1410 1411 if (show_version_only) { 1412 fprintf(stderr, _("\tUsing %s\n"), 1413 error_message(EXT2_ET_BASE)); 1414 exit(0); 1415 } 1416 1417 /* 1418 * If there's no blocksize specified and there is a journal 1419 * device, use it to figure out the blocksize 1420 */ 1421 if (blocksize <= 0 && journal_device) { 1422 ext2_filsys jfs; 1423 io_manager io_ptr; 1424 1425#ifdef CONFIG_TESTIO_DEBUG 1426 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) { 1427 io_ptr = test_io_manager; 1428 test_io_backing_manager = unix_io_manager; 1429 } else 1430#endif 1431 io_ptr = unix_io_manager; 1432 retval = ext2fs_open(journal_device, 1433 EXT2_FLAG_JOURNAL_DEV_OK, 0, 1434 0, io_ptr, &jfs); 1435 if (retval) { 1436 com_err(program_name, retval, 1437 _("while trying to open journal device %s\n"), 1438 journal_device); 1439 exit(1); 1440 } 1441 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) { 1442 com_err(program_name, 0, 1443 _("Journal dev blocksize (%d) smaller than " 1444 "minimum blocksize %d\n"), jfs->blocksize, 1445 -blocksize); 1446 exit(1); 1447 } 1448 blocksize = jfs->blocksize; 1449 printf(_("Using journal device's blocksize: %d\n"), blocksize); 1450 fs_param.s_log_block_size = 1451 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE); 1452 ext2fs_close(jfs); 1453 } 1454 1455 if (blocksize > sys_page_size) { 1456 if (!force) { 1457 com_err(program_name, 0, 1458 _("%d-byte blocks too big for system (max %d)"), 1459 blocksize, sys_page_size); 1460 proceed_question(); 1461 } 1462 fprintf(stderr, _("Warning: %d-byte blocks too big for system " 1463 "(max %d), forced to continue\n"), 1464 blocksize, sys_page_size); 1465 } 1466 if (optind < argc) { 1467 fs_blocks_count = parse_num_blocks2(argv[optind++], 1468 fs_param.s_log_block_size); 1469 if (!fs_blocks_count) { 1470 com_err(program_name, 0, 1471 _("invalid blocks '%s' on device '%s'"), 1472 argv[optind - 1], device_name); 1473 exit(1); 1474 } 1475 } 1476 if (optind < argc) 1477 usage(); 1478 1479 if (!force) 1480 check_plausibility(device_name); 1481 check_mount(device_name, force, _("filesystem")); 1482 1483 fs_param.s_log_frag_size = fs_param.s_log_block_size; 1484 1485 fs_types = parse_fs_type(fs_type, usage_types, &fs_param, fs_blocks_count, 1486 argv[0]); 1487 if (!fs_types) { 1488 fprintf(stderr, _("Failed to parse fs types list\n")); 1489 exit(1); 1490 } 1491 1492 /* Figure out what features should be enabled */ 1493 1494 tmp = NULL; 1495 if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) { 1496 tmp = get_string_from_profile(fs_types, "base_features", 1497 "sparse_super,filetype,resize_inode,dir_index"); 1498 edit_feature(tmp, &fs_param.s_feature_compat); 1499 free(tmp); 1500 1501 for (cpp = fs_types; *cpp; cpp++) { 1502 tmp = NULL; 1503 profile_get_string(profile, "fs_types", *cpp, 1504 "features", "", &tmp); 1505 if (tmp && *tmp) 1506 edit_feature(tmp, &fs_param.s_feature_compat); 1507 if (tmp) 1508 free(tmp); 1509 } 1510 tmp = get_string_from_profile(fs_types, "default_features", 1511 ""); 1512 } 1513 edit_feature(fs_features ? fs_features : tmp, 1514 &fs_param.s_feature_compat); 1515 if (tmp) 1516 free(tmp); 1517 1518 if (noaction && fs_blocks_count) { 1519 dev_size = fs_blocks_count; 1520 retval = 0; 1521 } else 1522 retval = ext2fs_get_device_size2(device_name, 1523 EXT2_BLOCK_SIZE(&fs_param), 1524 &dev_size); 1525 1526 if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) { 1527 com_err(program_name, retval, 1528 _("while trying to determine filesystem size")); 1529 exit(1); 1530 } 1531 if (!fs_blocks_count) { 1532 if (retval == EXT2_ET_UNIMPLEMENTED) { 1533 com_err(program_name, 0, 1534 _("Couldn't determine device size; you " 1535 "must specify\nthe size of the " 1536 "filesystem\n")); 1537 exit(1); 1538 } else { 1539 if (dev_size == 0) { 1540 com_err(program_name, 0, 1541 _("Device size reported to be zero. " 1542 "Invalid partition specified, or\n\t" 1543 "partition table wasn't reread " 1544 "after running fdisk, due to\n\t" 1545 "a modified partition being busy " 1546 "and in use. You may need to reboot\n\t" 1547 "to re-read your partition table.\n" 1548 )); 1549 exit(1); 1550 } 1551 fs_blocks_count = dev_size; 1552 if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param)) 1553 fs_blocks_count &= ~((blk64_t) ((sys_page_size / 1554 EXT2_BLOCK_SIZE(&fs_param))-1)); 1555 } 1556 } else if (!force && (fs_blocks_count > dev_size)) { 1557 com_err(program_name, 0, 1558 _("Filesystem larger than apparent device size.")); 1559 proceed_question(); 1560 } 1561 1562 /* 1563 * We now need to do a sanity check of fs_blocks_count for 1564 * 32-bit vs 64-bit block number support. 1565 */ 1566 if ((fs_blocks_count > MAX_32_NUM) && (blocksize == 0)) { 1567 fs_blocks_count /= 4; /* Try using a 4k blocksize */ 1568 blocksize = 4096; 1569 fs_param.s_log_block_size = 2; 1570 } 1571 if ((fs_blocks_count > MAX_32_NUM) && 1572 !(fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT) && 1573 get_bool_from_profile(fs_types, "auto_64-bit_support", 0)) { 1574 fs_param.s_feature_incompat |= EXT4_FEATURE_INCOMPAT_64BIT; 1575 fs_param.s_feature_compat &= ~EXT2_FEATURE_COMPAT_RESIZE_INODE; 1576 } 1577 if ((fs_blocks_count > MAX_32_NUM) && 1578 !(fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT)) { 1579 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s " 1580 "too big to be expressed\n\t" 1581 "in 32 bits using a blocksize of %d.\n"), 1582 program_name, fs_blocks_count, device_name, 1583 EXT2_BLOCK_SIZE(&fs_param)); 1584 exit(1); 1585 } 1586 1587 ext2fs_blocks_count_set(&fs_param, fs_blocks_count); 1588 1589 if (fs_param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) { 1590 fs_types[0] = strdup("journal"); 1591 fs_types[1] = 0; 1592 } 1593 1594 if (verbose) { 1595 fputs(_("fs_types for mke2fs.conf resolution: "), stdout); 1596 print_str_list(fs_types); 1597 } 1598 1599 if (r_opt == EXT2_GOOD_OLD_REV && 1600 (fs_param.s_feature_compat || fs_param.s_feature_incompat || 1601 fs_param.s_feature_ro_compat)) { 1602 fprintf(stderr, _("Filesystem features not supported " 1603 "with revision 0 filesystems\n")); 1604 exit(1); 1605 } 1606 1607 if (s_opt > 0) { 1608 if (r_opt == EXT2_GOOD_OLD_REV) { 1609 fprintf(stderr, _("Sparse superblocks not supported " 1610 "with revision 0 filesystems\n")); 1611 exit(1); 1612 } 1613 fs_param.s_feature_ro_compat |= 1614 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER; 1615 } else if (s_opt == 0) 1616 fs_param.s_feature_ro_compat &= 1617 ~EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER; 1618 1619 if (journal_size != 0) { 1620 if (r_opt == EXT2_GOOD_OLD_REV) { 1621 fprintf(stderr, _("Journals not supported " 1622 "with revision 0 filesystems\n")); 1623 exit(1); 1624 } 1625 fs_param.s_feature_compat |= 1626 EXT3_FEATURE_COMPAT_HAS_JOURNAL; 1627 } 1628 1629 if (fs_param.s_feature_incompat & 1630 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) { 1631 reserved_ratio = 0; 1632 fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV; 1633 fs_param.s_feature_compat = 0; 1634 fs_param.s_feature_ro_compat = 0; 1635 } 1636 1637 if ((fs_param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) && 1638 (fs_param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE)) { 1639 fprintf(stderr, _("The resize_inode and meta_bg features " 1640 "are not compatible.\n" 1641 "They can not be both enabled " 1642 "simultaneously.\n")); 1643 exit(1); 1644 } 1645 1646 /* Set first meta blockgroup via an environment variable */ 1647 /* (this is mostly for debugging purposes) */ 1648 if ((fs_param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) && 1649 ((tmp = getenv("MKE2FS_FIRST_META_BG")))) 1650 fs_param.s_first_meta_bg = atoi(tmp); 1651 1652 /* Get the hardware sector sizes, if available */ 1653 retval = ext2fs_get_device_sectsize(device_name, &lsector_size); 1654 if (retval) { 1655 com_err(program_name, retval, 1656 _("while trying to determine hardware sector size")); 1657 exit(1); 1658 } 1659 retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size); 1660 if (retval) { 1661 com_err(program_name, retval, 1662 _("while trying to determine physical sector size")); 1663 exit(1); 1664 } 1665 1666 if ((tmp = getenv("MKE2FS_DEVICE_SECTSIZE")) != NULL) 1667 lsector_size = atoi(tmp); 1668 if ((tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE")) != NULL) 1669 psector_size = atoi(tmp); 1670 1671 /* Older kernels may not have physical/logical distinction */ 1672 if (!psector_size) 1673 psector_size = lsector_size; 1674 1675 if (blocksize <= 0) { 1676 use_bsize = get_int_from_profile(fs_types, "blocksize", 4096); 1677 1678 if (use_bsize == -1) { 1679 use_bsize = sys_page_size; 1680 if ((linux_version_code < (2*65536 + 6*256)) && 1681 (use_bsize > 4096)) 1682 use_bsize = 4096; 1683 } 1684 if (lsector_size && use_bsize < lsector_size) 1685 use_bsize = lsector_size; 1686 if ((blocksize < 0) && (use_bsize < (-blocksize))) 1687 use_bsize = -blocksize; 1688 blocksize = use_bsize; 1689 ext2fs_blocks_count_set(&fs_param, 1690 ext2fs_blocks_count(&fs_param) / 1691 (blocksize / 1024)); 1692 } else { 1693 if (blocksize < lsector_size) { /* Impossible */ 1694 com_err(program_name, EINVAL, 1695 _("while setting blocksize; too small " 1696 "for device\n")); 1697 exit(1); 1698 } else if ((blocksize < psector_size) && 1699 (psector_size <= sys_page_size)) { /* Suboptimal */ 1700 fprintf(stderr, _("Warning: specified blocksize %d is " 1701 "less than device physical sectorsize %d\n"), 1702 blocksize, psector_size); 1703 } 1704 } 1705 1706 if (inode_ratio == 0) { 1707 inode_ratio = get_int_from_profile(fs_types, "inode_ratio", 1708 8192); 1709 if (inode_ratio < blocksize) 1710 inode_ratio = blocksize; 1711 } 1712 1713 fs_param.s_log_frag_size = fs_param.s_log_block_size = 1714 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE); 1715 1716#ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY 1717 retval = get_device_geometry(device_name, &fs_param, psector_size); 1718 if (retval < 0) { 1719 fprintf(stderr, 1720 _("warning: Unable to get device geometry for %s\n"), 1721 device_name); 1722 } else if (retval) { 1723 printf(_("%s alignment is offset by %lu bytes.\n"), 1724 device_name, retval); 1725 printf(_("This may result in very poor performance, " 1726 "(re)-partitioning suggested.\n")); 1727 } 1728#endif 1729 1730 blocksize = EXT2_BLOCK_SIZE(&fs_param); 1731 1732 lazy_itable_init = 0; 1733 if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0) 1734 lazy_itable_init = 1; 1735 1736 lazy_itable_init = get_bool_from_profile(fs_types, 1737 "lazy_itable_init", 1738 lazy_itable_init); 1739 discard = get_bool_from_profile(fs_types, "discard" , discard); 1740 1741 /* Get options from profile */ 1742 for (cpp = fs_types; *cpp; cpp++) { 1743 tmp = NULL; 1744 profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp); 1745 if (tmp && *tmp) 1746 parse_extended_opts(&fs_param, tmp); 1747 free(tmp); 1748 } 1749 1750 if (extended_opts) 1751 parse_extended_opts(&fs_param, extended_opts); 1752 1753 /* Since sparse_super is the default, we would only have a problem 1754 * here if it was explicitly disabled. 1755 */ 1756 if ((fs_param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE) && 1757 !(fs_param.s_feature_ro_compat&EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)) { 1758 com_err(program_name, 0, 1759 _("reserved online resize blocks not supported " 1760 "on non-sparse filesystem")); 1761 exit(1); 1762 } 1763 1764 if (fs_param.s_blocks_per_group) { 1765 if (fs_param.s_blocks_per_group < 256 || 1766 fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) { 1767 com_err(program_name, 0, 1768 _("blocks per group count out of range")); 1769 exit(1); 1770 } 1771 } 1772 1773 if (inode_size == 0) 1774 inode_size = get_int_from_profile(fs_types, "inode_size", 0); 1775 if (!flex_bg_size && (fs_param.s_feature_incompat & 1776 EXT4_FEATURE_INCOMPAT_FLEX_BG)) 1777 flex_bg_size = get_int_from_profile(fs_types, 1778 "flex_bg_size", 16); 1779 if (flex_bg_size) { 1780 if (!(fs_param.s_feature_incompat & 1781 EXT4_FEATURE_INCOMPAT_FLEX_BG)) { 1782 com_err(program_name, 0, 1783 _("Flex_bg feature not enabled, so " 1784 "flex_bg size may not be specified")); 1785 exit(1); 1786 } 1787 fs_param.s_log_groups_per_flex = int_log2(flex_bg_size); 1788 } 1789 1790 if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) { 1791 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE || 1792 inode_size > EXT2_BLOCK_SIZE(&fs_param) || 1793 inode_size & (inode_size - 1)) { 1794 com_err(program_name, 0, 1795 _("invalid inode size %d (min %d/max %d)"), 1796 inode_size, EXT2_GOOD_OLD_INODE_SIZE, 1797 blocksize); 1798 exit(1); 1799 } 1800 fs_param.s_inode_size = inode_size; 1801 } 1802 1803 /* Make sure number of inodes specified will fit in 32 bits */ 1804 if (num_inodes == 0) { 1805 unsigned long long n; 1806 n = ext2fs_blocks_count(&fs_param) * blocksize / inode_ratio; 1807 if (n > MAX_32_NUM) { 1808 if (fs_param.s_feature_incompat & 1809 EXT4_FEATURE_INCOMPAT_64BIT) 1810 num_inodes = MAX_32_NUM; 1811 else { 1812 com_err(program_name, 0, 1813 _("too many inodes (%llu), raise" 1814 "inode ratio?"), n); 1815 exit(1); 1816 } 1817 } 1818 } else if (num_inodes > MAX_32_NUM) { 1819 com_err(program_name, 0, 1820 _("too many inodes (%llu), specify < 2^32 inodes"), 1821 num_inodes); 1822 exit(1); 1823 } 1824 /* 1825 * Calculate number of inodes based on the inode ratio 1826 */ 1827 fs_param.s_inodes_count = num_inodes ? num_inodes : 1828 (ext2fs_blocks_count(&fs_param) * blocksize) / inode_ratio; 1829 1830 if ((((long long)fs_param.s_inodes_count) * 1831 (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >= 1832 ((ext2fs_blocks_count(&fs_param)) * 1833 EXT2_BLOCK_SIZE(&fs_param))) { 1834 com_err(program_name, 0, _("inode_size (%u) * inodes_count " 1835 "(%u) too big for a\n\t" 1836 "filesystem with %llu blocks, " 1837 "specify higher inode_ratio (-i)\n\t" 1838 "or lower inode count (-N).\n"), 1839 inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE, 1840 fs_param.s_inodes_count, 1841 (unsigned long long) ext2fs_blocks_count(&fs_param)); 1842 exit(1); 1843 } 1844 1845 /* 1846 * Calculate number of blocks to reserve 1847 */ 1848 ext2fs_r_blocks_count_set(&fs_param, reserved_ratio * 1849 ext2fs_blocks_count(&fs_param) / 100.0); 1850} 1851 1852static int should_do_undo(const char *name) 1853{ 1854 errcode_t retval; 1855 io_channel channel; 1856 __u16 s_magic; 1857 struct ext2_super_block super; 1858 io_manager manager = unix_io_manager; 1859 int csum_flag, force_undo; 1860 1861 csum_flag = EXT2_HAS_RO_COMPAT_FEATURE(&fs_param, 1862 EXT4_FEATURE_RO_COMPAT_GDT_CSUM); 1863 force_undo = get_int_from_profile(fs_types, "force_undo", 0); 1864 if (!force_undo && (!csum_flag || !lazy_itable_init)) 1865 return 0; 1866 1867 retval = manager->open(name, IO_FLAG_EXCLUSIVE, &channel); 1868 if (retval) { 1869 /* 1870 * We don't handle error cases instead we 1871 * declare that the file system doesn't exist 1872 * and let the rest of mke2fs take care of 1873 * error 1874 */ 1875 retval = 0; 1876 goto open_err_out; 1877 } 1878 1879 io_channel_set_blksize(channel, SUPERBLOCK_OFFSET); 1880 retval = io_channel_read_blk64(channel, 1, -SUPERBLOCK_SIZE, &super); 1881 if (retval) { 1882 retval = 0; 1883 goto err_out; 1884 } 1885 1886#if defined(WORDS_BIGENDIAN) 1887 s_magic = ext2fs_swab16(super.s_magic); 1888#else 1889 s_magic = super.s_magic; 1890#endif 1891 1892 if (s_magic == EXT2_SUPER_MAGIC) 1893 retval = 1; 1894 1895err_out: 1896 io_channel_close(channel); 1897 1898open_err_out: 1899 1900 return retval; 1901} 1902 1903static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr) 1904{ 1905 errcode_t retval = 0; 1906 char *tdb_dir, *tdb_file; 1907 char *device_name, *tmp_name; 1908 1909 /* 1910 * Configuration via a conf file would be 1911 * nice 1912 */ 1913 tdb_dir = getenv("E2FSPROGS_UNDO_DIR"); 1914 if (!tdb_dir) 1915 profile_get_string(profile, "defaults", 1916 "undo_dir", 0, "/var/lib/e2fsprogs", 1917 &tdb_dir); 1918 1919 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) || 1920 access(tdb_dir, W_OK)) 1921 return 0; 1922 1923 tmp_name = strdup(name); 1924 if (!tmp_name) { 1925 alloc_fn_fail: 1926 com_err(program_name, ENOMEM, 1927 _("Couldn't allocate memory for tdb filename\n")); 1928 return ENOMEM; 1929 } 1930 device_name = basename(tmp_name); 1931 tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(device_name) + 7 + 1); 1932 if (!tdb_file) 1933 goto alloc_fn_fail; 1934 sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, device_name); 1935 1936 if (!access(tdb_file, F_OK)) { 1937 if (unlink(tdb_file) < 0) { 1938 retval = errno; 1939 com_err(program_name, retval, 1940 _("while trying to delete %s"), 1941 tdb_file); 1942 free(tdb_file); 1943 return retval; 1944 } 1945 } 1946 1947 set_undo_io_backing_manager(*io_ptr); 1948 *io_ptr = undo_io_manager; 1949 set_undo_io_backup_file(tdb_file); 1950 printf(_("Overwriting existing filesystem; this can be undone " 1951 "using the command:\n" 1952 " e2undo %s %s\n\n"), tdb_file, name); 1953 1954 free(tdb_file); 1955 free(tmp_name); 1956 return retval; 1957} 1958 1959int main (int argc, char *argv[]) 1960{ 1961 errcode_t retval = 0; 1962 ext2_filsys fs; 1963 badblocks_list bb_list = 0; 1964 unsigned int journal_blocks; 1965 unsigned int i; 1966 int val, hash_alg; 1967 int flags; 1968 int old_bitmaps; 1969 io_manager io_ptr; 1970 char tdb_string[40]; 1971 char *hash_alg_str; 1972 int itable_zeroed = 0; 1973 1974#ifdef ENABLE_NLS 1975 setlocale(LC_MESSAGES, ""); 1976 setlocale(LC_CTYPE, ""); 1977 bindtextdomain(NLS_CAT_NAME, LOCALEDIR); 1978 textdomain(NLS_CAT_NAME); 1979#endif 1980 PRS(argc, argv); 1981 1982#ifdef CONFIG_TESTIO_DEBUG 1983 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) { 1984 io_ptr = test_io_manager; 1985 test_io_backing_manager = unix_io_manager; 1986 } else 1987#endif 1988 io_ptr = unix_io_manager; 1989 1990 if (should_do_undo(device_name)) { 1991 retval = mke2fs_setup_tdb(device_name, &io_ptr); 1992 if (retval) 1993 exit(1); 1994 } 1995 1996 /* 1997 * Initialize the superblock.... 1998 */ 1999 flags = EXT2_FLAG_EXCLUSIVE; 2000 profile_get_boolean(profile, "options", "old_bitmaps", 0, 0, 2001 &old_bitmaps); 2002 if (!old_bitmaps) 2003 flags |= EXT2_FLAG_64BITS; 2004 /* 2005 * By default, we print how many inode tables or block groups 2006 * or whatever we've written so far. The quiet flag disables 2007 * this, along with a lot of other output. 2008 */ 2009 if (!quiet) 2010 flags |= EXT2_FLAG_PRINT_PROGRESS; 2011 retval = ext2fs_initialize(device_name, flags, &fs_param, io_ptr, &fs); 2012 if (retval) { 2013 com_err(device_name, retval, _("while setting up superblock")); 2014 exit(1); 2015 } 2016 2017 /* Can't undo discard ... */ 2018 if (discard && (io_ptr != undo_io_manager)) { 2019 blk64_t blocks = ext2fs_blocks_count(fs->super); 2020 if (verbose) 2021 printf(_("Calling BLKDISCARD from 0 to %llu... "), 2022 (unsigned long long) blocks); 2023 retval = io_channel_discard(fs->io, 0, blocks, fs->blocksize); 2024 if (verbose) { 2025 if (retval) 2026 printf(_("failed (%s)\n"), 2027 error_message(retval)); 2028 else 2029 printf(_("succeeded\n")); 2030 } 2031 2032 if (!retval && io_channel_discard_zeroes_data(fs->io)) { 2033 if (verbose) 2034 printf(_("Discard succeeded and will return 0s " 2035 " - skipping inode table wipe\n")); 2036 lazy_itable_init = 1; 2037 itable_zeroed = 1; 2038 } 2039 } 2040 2041 sprintf(tdb_string, "tdb_data_size=%d", fs->blocksize <= 4096 ? 2042 32768 : fs->blocksize * 8); 2043 io_channel_set_options(fs->io, tdb_string); 2044 2045 if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS) 2046 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS; 2047 2048 if ((fs_param.s_feature_incompat & 2049 (EXT3_FEATURE_INCOMPAT_EXTENTS|EXT4_FEATURE_INCOMPAT_FLEX_BG)) || 2050 (fs_param.s_feature_ro_compat & 2051 (EXT4_FEATURE_RO_COMPAT_HUGE_FILE|EXT4_FEATURE_RO_COMPAT_GDT_CSUM| 2052 EXT4_FEATURE_RO_COMPAT_DIR_NLINK| 2053 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE))) 2054 fs->super->s_kbytes_written = 1; 2055 2056 /* 2057 * Wipe out the old on-disk superblock 2058 */ 2059 if (!noaction) 2060 zap_sector(fs, 2, 6); 2061 2062 /* 2063 * Parse or generate a UUID for the filesystem 2064 */ 2065 if (fs_uuid) { 2066 if (uuid_parse(fs_uuid, fs->super->s_uuid) !=0) { 2067 com_err(device_name, 0, "could not parse UUID: %s\n", 2068 fs_uuid); 2069 exit(1); 2070 } 2071 } else 2072 uuid_generate(fs->super->s_uuid); 2073 2074 /* 2075 * Initialize the directory index variables 2076 */ 2077 hash_alg_str = get_string_from_profile(fs_types, "hash_alg", 2078 "half_md4"); 2079 hash_alg = e2p_string2hash(hash_alg_str); 2080 free(hash_alg_str); 2081 fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg : 2082 EXT2_HASH_HALF_MD4; 2083 uuid_generate((unsigned char *) fs->super->s_hash_seed); 2084 2085 /* 2086 * Add "jitter" to the superblock's check interval so that we 2087 * don't check all the filesystems at the same time. We use a 2088 * kludgy hack of using the UUID to derive a random jitter value. 2089 */ 2090 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++) 2091 val += fs->super->s_uuid[i]; 2092 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT; 2093 2094 /* 2095 * Override the creator OS, if applicable 2096 */ 2097 if (creator_os && !set_os(fs->super, creator_os)) { 2098 com_err (program_name, 0, _("unknown os - %s"), creator_os); 2099 exit(1); 2100 } 2101 2102 /* 2103 * For the Hurd, we will turn off filetype since it doesn't 2104 * support it. 2105 */ 2106 if (fs->super->s_creator_os == EXT2_OS_HURD) 2107 fs->super->s_feature_incompat &= 2108 ~EXT2_FEATURE_INCOMPAT_FILETYPE; 2109 2110 /* 2111 * Set the volume label... 2112 */ 2113 if (volume_label) { 2114 memset(fs->super->s_volume_name, 0, 2115 sizeof(fs->super->s_volume_name)); 2116 strncpy(fs->super->s_volume_name, volume_label, 2117 sizeof(fs->super->s_volume_name)); 2118 } 2119 2120 /* 2121 * Set the last mount directory 2122 */ 2123 if (mount_dir) { 2124 memset(fs->super->s_last_mounted, 0, 2125 sizeof(fs->super->s_last_mounted)); 2126 strncpy(fs->super->s_last_mounted, mount_dir, 2127 sizeof(fs->super->s_last_mounted)); 2128 } 2129 2130 if (!quiet || noaction) 2131 show_stats(fs); 2132 2133 if (noaction) 2134 exit(0); 2135 2136 if (fs->super->s_feature_incompat & 2137 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) { 2138 create_journal_dev(fs); 2139 exit(ext2fs_close(fs) ? 1 : 0); 2140 } 2141 2142 if (bad_blocks_filename) 2143 read_bb_file(fs, &bb_list, bad_blocks_filename); 2144 if (cflag) 2145 test_disk(fs, &bb_list); 2146 2147 handle_bad_blocks(fs, bb_list); 2148 fs->stride = fs_stride = fs->super->s_raid_stride; 2149 if (!quiet) 2150 printf(_("Allocating group tables: ")); 2151 retval = ext2fs_allocate_tables(fs); 2152 if (retval) { 2153 com_err(program_name, retval, 2154 _("while trying to allocate filesystem tables")); 2155 exit(1); 2156 } 2157 if (!quiet) 2158 printf(_("done \n")); 2159 if (super_only) { 2160 fs->super->s_state |= EXT2_ERROR_FS; 2161 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY); 2162 } else { 2163 /* rsv must be a power of two (64kB is MD RAID sb alignment) */ 2164 blk64_t rsv = 65536 / fs->blocksize; 2165 blk64_t blocks = ext2fs_blocks_count(fs->super); 2166 blk64_t start; 2167 blk64_t ret_blk; 2168 2169#ifdef ZAP_BOOTBLOCK 2170 zap_sector(fs, 0, 2); 2171#endif 2172 2173 /* 2174 * Wipe out any old MD RAID (or other) metadata at the end 2175 * of the device. This will also verify that the device is 2176 * as large as we think. Be careful with very small devices. 2177 */ 2178 start = (blocks & ~(rsv - 1)); 2179 if (start > rsv) 2180 start -= rsv; 2181 if (start > 0) 2182 retval = ext2fs_zero_blocks2(fs, start, blocks - start, 2183 &ret_blk, NULL); 2184 2185 if (retval) { 2186 com_err(program_name, retval, 2187 _("while zeroing block %llu at end of filesystem"), 2188 ret_blk); 2189 } 2190 write_inode_tables(fs, lazy_itable_init, itable_zeroed); 2191 create_root_dir(fs); 2192 create_lost_and_found(fs); 2193 reserve_inodes(fs); 2194 create_bad_block_inode(fs, bb_list); 2195 if (fs->super->s_feature_compat & 2196 EXT2_FEATURE_COMPAT_RESIZE_INODE) { 2197 retval = ext2fs_create_resize_inode(fs); 2198 if (retval) { 2199 com_err("ext2fs_create_resize_inode", retval, 2200 _("while reserving blocks for online resize")); 2201 exit(1); 2202 } 2203 } 2204 } 2205 2206 if (journal_device) { 2207 ext2_filsys jfs; 2208 2209 if (!force) 2210 check_plausibility(journal_device); 2211 check_mount(journal_device, force, _("journal")); 2212 2213 retval = ext2fs_open(journal_device, EXT2_FLAG_RW| 2214 EXT2_FLAG_JOURNAL_DEV_OK, 0, 2215 fs->blocksize, unix_io_manager, &jfs); 2216 if (retval) { 2217 com_err(program_name, retval, 2218 _("while trying to open journal device %s\n"), 2219 journal_device); 2220 exit(1); 2221 } 2222 if (!quiet) { 2223 printf(_("Adding journal to device %s: "), 2224 journal_device); 2225 fflush(stdout); 2226 } 2227 retval = ext2fs_add_journal_device(fs, jfs); 2228 if(retval) { 2229 com_err (program_name, retval, 2230 _("\n\twhile trying to add journal to device %s"), 2231 journal_device); 2232 exit(1); 2233 } 2234 if (!quiet) 2235 printf(_("done\n")); 2236 ext2fs_close(jfs); 2237 free(journal_device); 2238 } else if ((journal_size) || 2239 (fs_param.s_feature_compat & 2240 EXT3_FEATURE_COMPAT_HAS_JOURNAL)) { 2241 journal_blocks = figure_journal_size(journal_size, fs); 2242 2243 if (super_only) { 2244 printf(_("Skipping journal creation in super-only mode\n")); 2245 fs->super->s_journal_inum = EXT2_JOURNAL_INO; 2246 goto no_journal; 2247 } 2248 2249 if (!journal_blocks) { 2250 fs->super->s_feature_compat &= 2251 ~EXT3_FEATURE_COMPAT_HAS_JOURNAL; 2252 goto no_journal; 2253 } 2254 if (!quiet) { 2255 printf(_("Creating journal (%u blocks): "), 2256 journal_blocks); 2257 fflush(stdout); 2258 } 2259 retval = ext2fs_add_journal_inode(fs, journal_blocks, 2260 journal_flags); 2261 if (retval) { 2262 com_err (program_name, retval, 2263 _("\n\twhile trying to create journal")); 2264 exit(1); 2265 } 2266 if (!quiet) 2267 printf(_("done\n")); 2268 } 2269no_journal: 2270 2271 if (!quiet) 2272 printf(_("Writing superblocks and " 2273 "filesystem accounting information: ")); 2274 retval = ext2fs_flush(fs); 2275 if (retval) { 2276 fprintf(stderr, 2277 _("\nWarning, had trouble writing out superblocks.")); 2278 } 2279 if (!quiet) { 2280 printf(_("done\n\n")); 2281 if (!getenv("MKE2FS_SKIP_CHECK_MSG")) 2282 print_check_message(fs); 2283 } 2284 val = ext2fs_close(fs); 2285 remove_error_table(&et_ext2_error_table); 2286 remove_error_table(&et_prof_error_table); 2287 profile_release(profile); 2288 for (i=0; fs_types[i]; i++) 2289 free(fs_types[i]); 2290 free(fs_types); 2291 return (retval || val) ? 1 : 0; 2292} 2293