mke2fs.c revision 5b734a0e715ba6590624247b0866e4791f717981
1/* 2 * mke2fs.c - Make a ext2fs filesystem. 3 * 4 * Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 5 * 2003, 2004, 2005 by Theodore Ts'o. 6 * 7 * %Begin-Header% 8 * This file may be redistributed under the terms of the GNU Public 9 * License. 10 * %End-Header% 11 */ 12 13/* Usage: mke2fs [options] device 14 * 15 * The device may be a block device or a image of one, but this isn't 16 * enforced (but it's not much fun on a character device :-). 17 */ 18 19#define _XOPEN_SOURCE 600 /* for inclusion of PATH_MAX in Solaris */ 20 21#include <stdio.h> 22#include <string.h> 23#include <strings.h> 24#include <fcntl.h> 25#include <ctype.h> 26#include <time.h> 27#ifdef __linux__ 28#include <sys/utsname.h> 29#endif 30#ifdef HAVE_GETOPT_H 31#include <getopt.h> 32#else 33extern char *optarg; 34extern int optind; 35#endif 36#ifdef HAVE_UNISTD_H 37#include <unistd.h> 38#endif 39#ifdef HAVE_STDLIB_H 40#include <stdlib.h> 41#endif 42#ifdef HAVE_ERRNO_H 43#include <errno.h> 44#endif 45#ifdef HAVE_MNTENT_H 46#include <mntent.h> 47#endif 48#include <sys/ioctl.h> 49#include <sys/types.h> 50#include <sys/stat.h> 51#include <libgen.h> 52#include <limits.h> 53#include <blkid/blkid.h> 54 55#include "ext2fs/ext2_fs.h" 56#include "et/com_err.h" 57#include "uuid/uuid.h" 58#include "e2p/e2p.h" 59#include "ext2fs/ext2fs.h" 60#include "util.h" 61#include "profile.h" 62#include "prof_err.h" 63#include "../version.h" 64#include "nls-enable.h" 65 66#define STRIDE_LENGTH 8 67 68#ifndef __sparc__ 69#define ZAP_BOOTBLOCK 70#endif 71 72extern int isatty(int); 73extern FILE *fpopen(const char *cmd, const char *mode); 74 75const char * program_name = "mke2fs"; 76const char * device_name /* = NULL */; 77 78/* Command line options */ 79int cflag; 80int verbose; 81int quiet; 82int super_only; 83int discard = 1; /* attempt to discard device before fs creation */ 84int force; 85int noaction; 86int journal_size; 87int journal_flags; 88int lazy_itable_init; 89char *bad_blocks_filename; 90__u32 fs_stride; 91 92struct ext2_super_block fs_param; 93char *fs_uuid = NULL; 94char *creator_os; 95char *volume_label; 96char *mount_dir; 97char *journal_device; 98int sync_kludge; /* Set using the MKE2FS_SYNC env. option */ 99char **fs_types; 100 101profile_t profile; 102 103int sys_page_size = 4096; 104int linux_version_code = 0; 105 106static void usage(void) 107{ 108 fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] " 109 "[-f fragment-size]\n\t[-i bytes-per-inode] [-I inode-size] " 110 "[-J journal-options]\n" 111 "\t[-G meta group size] [-N number-of-inodes]\n" 112 "\t[-m reserved-blocks-percentage] [-o creator-os]\n" 113 "\t[-g blocks-per-group] [-L volume-label] " 114 "[-M last-mounted-directory]\n\t[-O feature[,...]] " 115 "[-r fs-revision] [-E extended-option[,...]]\n" 116 "\t[-T fs-type] [-U UUID] [-jnqvFKSV] device [blocks-count]\n"), 117 program_name); 118 exit(1); 119} 120 121static int int_log2(int arg) 122{ 123 int l = 0; 124 125 arg >>= 1; 126 while (arg) { 127 l++; 128 arg >>= 1; 129 } 130 return l; 131} 132 133static int int_log10(unsigned int arg) 134{ 135 int l; 136 137 for (l=0; arg ; l++) 138 arg = arg / 10; 139 return l; 140} 141 142static int parse_version_number(const char *s) 143{ 144 int major, minor, rev; 145 char *endptr; 146 const char *cp = s; 147 148 if (!s) 149 return 0; 150 major = strtol(cp, &endptr, 10); 151 if (cp == endptr || *endptr != '.') 152 return 0; 153 cp = endptr + 1; 154 minor = strtol(cp, &endptr, 10); 155 if (cp == endptr || *endptr != '.') 156 return 0; 157 cp = endptr + 1; 158 rev = strtol(cp, &endptr, 10); 159 if (cp == endptr) 160 return 0; 161 return ((((major * 256) + minor) * 256) + rev); 162} 163 164/* 165 * Helper function for read_bb_file and test_disk 166 */ 167static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk) 168{ 169 fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk); 170 return; 171} 172 173/* 174 * Reads the bad blocks list from a file 175 */ 176static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list, 177 const char *bad_blocks_file) 178{ 179 FILE *f; 180 errcode_t retval; 181 182 f = fopen(bad_blocks_file, "r"); 183 if (!f) { 184 com_err("read_bad_blocks_file", errno, 185 _("while trying to open %s"), bad_blocks_file); 186 exit(1); 187 } 188 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block); 189 fclose (f); 190 if (retval) { 191 com_err("ext2fs_read_bb_FILE", retval, 192 _("while reading in list of bad blocks from file")); 193 exit(1); 194 } 195} 196 197/* 198 * Runs the badblocks program to test the disk 199 */ 200static void test_disk(ext2_filsys fs, badblocks_list *bb_list) 201{ 202 FILE *f; 203 errcode_t retval; 204 char buf[1024]; 205 206 sprintf(buf, "badblocks -b %d -X %s%s%s %u", fs->blocksize, 207 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "", 208 fs->device_name, fs->super->s_blocks_count-1); 209 if (verbose) 210 printf(_("Running command: %s\n"), buf); 211 f = popen(buf, "r"); 212 if (!f) { 213 com_err("popen", errno, 214 _("while trying to run '%s'"), buf); 215 exit(1); 216 } 217 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block); 218 pclose(f); 219 if (retval) { 220 com_err("ext2fs_read_bb_FILE", retval, 221 _("while processing list of bad blocks from program")); 222 exit(1); 223 } 224} 225 226static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list) 227{ 228 dgrp_t i; 229 blk_t j; 230 unsigned must_be_good; 231 blk_t blk; 232 badblocks_iterate bb_iter; 233 errcode_t retval; 234 blk_t group_block; 235 int group; 236 int group_bad; 237 238 if (!bb_list) 239 return; 240 241 /* 242 * The primary superblock and group descriptors *must* be 243 * good; if not, abort. 244 */ 245 must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks; 246 for (i = fs->super->s_first_data_block; i <= must_be_good; i++) { 247 if (ext2fs_badblocks_list_test(bb_list, i)) { 248 fprintf(stderr, _("Block %d in primary " 249 "superblock/group descriptor area bad.\n"), i); 250 fprintf(stderr, _("Blocks %u through %u must be good " 251 "in order to build a filesystem.\n"), 252 fs->super->s_first_data_block, must_be_good); 253 fputs(_("Aborting....\n"), stderr); 254 exit(1); 255 } 256 } 257 258 /* 259 * See if any of the bad blocks are showing up in the backup 260 * superblocks and/or group descriptors. If so, issue a 261 * warning and adjust the block counts appropriately. 262 */ 263 group_block = fs->super->s_first_data_block + 264 fs->super->s_blocks_per_group; 265 266 for (i = 1; i < fs->group_desc_count; i++) { 267 group_bad = 0; 268 for (j=0; j < fs->desc_blocks+1; j++) { 269 if (ext2fs_badblocks_list_test(bb_list, 270 group_block + j)) { 271 if (!group_bad) 272 fprintf(stderr, 273_("Warning: the backup superblock/group descriptors at block %u contain\n" 274" bad blocks.\n\n"), 275 group_block); 276 group_bad++; 277 group = ext2fs_group_of_blk(fs, group_block+j); 278 fs->group_desc[group].bg_free_blocks_count++; 279 ext2fs_group_desc_csum_set(fs, group); 280 fs->super->s_free_blocks_count++; 281 } 282 } 283 group_block += fs->super->s_blocks_per_group; 284 } 285 286 /* 287 * Mark all the bad blocks as used... 288 */ 289 retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter); 290 if (retval) { 291 com_err("ext2fs_badblocks_list_iterate_begin", retval, 292 _("while marking bad blocks as used")); 293 exit(1); 294 } 295 while (ext2fs_badblocks_list_iterate(bb_iter, &blk)) 296 ext2fs_mark_block_bitmap(fs->block_map, blk); 297 ext2fs_badblocks_list_iterate_end(bb_iter); 298} 299 300/* 301 * These functions implement a generalized progress meter. 302 */ 303struct progress_struct { 304 char format[20]; 305 char backup[80]; 306 __u32 max; 307 int skip_progress; 308}; 309 310static void progress_init(struct progress_struct *progress, 311 const char *label,__u32 max) 312{ 313 int i; 314 315 memset(progress, 0, sizeof(struct progress_struct)); 316 if (quiet) 317 return; 318 319 /* 320 * Figure out how many digits we need 321 */ 322 i = int_log10(max); 323 sprintf(progress->format, "%%%dd/%%%dld", i, i); 324 memset(progress->backup, '\b', sizeof(progress->backup)-1); 325 progress->backup[sizeof(progress->backup)-1] = 0; 326 if ((2*i)+1 < (int) sizeof(progress->backup)) 327 progress->backup[(2*i)+1] = 0; 328 progress->max = max; 329 330 progress->skip_progress = 0; 331 if (getenv("MKE2FS_SKIP_PROGRESS")) 332 progress->skip_progress++; 333 334 fputs(label, stdout); 335 fflush(stdout); 336} 337 338static void progress_update(struct progress_struct *progress, __u32 val) 339{ 340 if ((progress->format[0] == 0) || progress->skip_progress) 341 return; 342 printf(progress->format, val, progress->max); 343 fputs(progress->backup, stdout); 344} 345 346static void progress_close(struct progress_struct *progress) 347{ 348 if (progress->format[0] == 0) 349 return; 350 fputs(_("done \n"), stdout); 351} 352 353static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed) 354{ 355 errcode_t retval; 356 blk_t blk; 357 dgrp_t i; 358 int num, ipb; 359 struct progress_struct progress; 360 361 if (quiet) 362 memset(&progress, 0, sizeof(progress)); 363 else 364 progress_init(&progress, _("Writing inode tables: "), 365 fs->group_desc_count); 366 367 for (i = 0; i < fs->group_desc_count; i++) { 368 progress_update(&progress, i); 369 370 blk = fs->group_desc[i].bg_inode_table; 371 num = fs->inode_blocks_per_group; 372 373 if (lazy_flag) { 374 ipb = fs->blocksize / EXT2_INODE_SIZE(fs->super); 375 num = ((((fs->super->s_inodes_per_group - 376 fs->group_desc[i].bg_itable_unused) * 377 EXT2_INODE_SIZE(fs->super)) + 378 EXT2_BLOCK_SIZE(fs->super) - 1) / 379 EXT2_BLOCK_SIZE(fs->super)); 380 } 381 if (!lazy_flag || itable_zeroed) { 382 /* The kernel doesn't need to zero the itable blocks */ 383 fs->group_desc[i].bg_flags |= EXT2_BG_INODE_ZEROED; 384 ext2fs_group_desc_csum_set(fs, i); 385 } 386 retval = ext2fs_zero_blocks(fs, blk, num, &blk, &num); 387 if (retval) { 388 fprintf(stderr, _("\nCould not write %d " 389 "blocks in inode table starting at %u: %s\n"), 390 num, blk, error_message(retval)); 391 exit(1); 392 } 393 if (sync_kludge) { 394 if (sync_kludge == 1) 395 sync(); 396 else if ((i % sync_kludge) == 0) 397 sync(); 398 } 399 } 400 ext2fs_zero_blocks(0, 0, 0, 0, 0); 401 progress_close(&progress); 402} 403 404static void create_root_dir(ext2_filsys fs) 405{ 406 errcode_t retval; 407 struct ext2_inode inode; 408 __u32 uid, gid; 409 410 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0); 411 if (retval) { 412 com_err("ext2fs_mkdir", retval, _("while creating root dir")); 413 exit(1); 414 } 415 if (geteuid()) { 416 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode); 417 if (retval) { 418 com_err("ext2fs_read_inode", retval, 419 _("while reading root inode")); 420 exit(1); 421 } 422 uid = getuid(); 423 inode.i_uid = uid; 424 ext2fs_set_i_uid_high(inode, uid >> 16); 425 if (uid) { 426 gid = getgid(); 427 inode.i_gid = gid; 428 ext2fs_set_i_gid_high(inode, gid >> 16); 429 } 430 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode); 431 if (retval) { 432 com_err("ext2fs_write_inode", retval, 433 _("while setting root inode ownership")); 434 exit(1); 435 } 436 } 437} 438 439static void create_lost_and_found(ext2_filsys fs) 440{ 441 unsigned int lpf_size = 0; 442 errcode_t retval; 443 ext2_ino_t ino; 444 const char *name = "lost+found"; 445 int i; 446 447 fs->umask = 077; 448 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name); 449 if (retval) { 450 com_err("ext2fs_mkdir", retval, 451 _("while creating /lost+found")); 452 exit(1); 453 } 454 455 retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino); 456 if (retval) { 457 com_err("ext2_lookup", retval, 458 _("while looking up /lost+found")); 459 exit(1); 460 } 461 462 for (i=1; i < EXT2_NDIR_BLOCKS; i++) { 463 /* Ensure that lost+found is at least 2 blocks, so we always 464 * test large empty blocks for big-block filesystems. */ 465 if ((lpf_size += fs->blocksize) >= 16*1024 && 466 lpf_size >= 2 * fs->blocksize) 467 break; 468 retval = ext2fs_expand_dir(fs, ino); 469 if (retval) { 470 com_err("ext2fs_expand_dir", retval, 471 _("while expanding /lost+found")); 472 exit(1); 473 } 474 } 475} 476 477static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list) 478{ 479 errcode_t retval; 480 481 ext2fs_mark_inode_bitmap(fs->inode_map, EXT2_BAD_INO); 482 ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0); 483 retval = ext2fs_update_bb_inode(fs, bb_list); 484 if (retval) { 485 com_err("ext2fs_update_bb_inode", retval, 486 _("while setting bad block inode")); 487 exit(1); 488 } 489 490} 491 492static void reserve_inodes(ext2_filsys fs) 493{ 494 ext2_ino_t i; 495 496 for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++) 497 ext2fs_inode_alloc_stats2(fs, i, +1, 0); 498 ext2fs_mark_ib_dirty(fs); 499} 500 501#define BSD_DISKMAGIC (0x82564557UL) /* The disk magic number */ 502#define BSD_MAGICDISK (0x57455682UL) /* The disk magic number reversed */ 503#define BSD_LABEL_OFFSET 64 504 505static void zap_sector(ext2_filsys fs, int sect, int nsect) 506{ 507 char *buf; 508 int retval; 509 unsigned int *magic; 510 511 buf = malloc(512*nsect); 512 if (!buf) { 513 printf(_("Out of memory erasing sectors %d-%d\n"), 514 sect, sect + nsect - 1); 515 exit(1); 516 } 517 518 if (sect == 0) { 519 /* Check for a BSD disklabel, and don't erase it if so */ 520 retval = io_channel_read_blk(fs->io, 0, -512, buf); 521 if (retval) 522 fprintf(stderr, 523 _("Warning: could not read block 0: %s\n"), 524 error_message(retval)); 525 else { 526 magic = (unsigned int *) (buf + BSD_LABEL_OFFSET); 527 if ((*magic == BSD_DISKMAGIC) || 528 (*magic == BSD_MAGICDISK)) 529 return; 530 } 531 } 532 533 memset(buf, 0, 512*nsect); 534 io_channel_set_blksize(fs->io, 512); 535 retval = io_channel_write_blk(fs->io, sect, -512*nsect, buf); 536 io_channel_set_blksize(fs->io, fs->blocksize); 537 free(buf); 538 if (retval) 539 fprintf(stderr, _("Warning: could not erase sector %d: %s\n"), 540 sect, error_message(retval)); 541} 542 543static void create_journal_dev(ext2_filsys fs) 544{ 545 struct progress_struct progress; 546 errcode_t retval; 547 char *buf; 548 blk_t blk, err_blk; 549 int c, count, err_count; 550 551 retval = ext2fs_create_journal_superblock(fs, 552 fs->super->s_blocks_count, 0, &buf); 553 if (retval) { 554 com_err("create_journal_dev", retval, 555 _("while initializing journal superblock")); 556 exit(1); 557 } 558 if (quiet) 559 memset(&progress, 0, sizeof(progress)); 560 else 561 progress_init(&progress, _("Zeroing journal device: "), 562 fs->super->s_blocks_count); 563 564 blk = 0; 565 count = fs->super->s_blocks_count; 566 while (count > 0) { 567 if (count > 1024) 568 c = 1024; 569 else 570 c = count; 571 retval = ext2fs_zero_blocks(fs, blk, c, &err_blk, &err_count); 572 if (retval) { 573 com_err("create_journal_dev", retval, 574 _("while zeroing journal device " 575 "(block %u, count %d)"), 576 err_blk, err_count); 577 exit(1); 578 } 579 blk += c; 580 count -= c; 581 progress_update(&progress, blk); 582 } 583 ext2fs_zero_blocks(0, 0, 0, 0, 0); 584 585 retval = io_channel_write_blk(fs->io, 586 fs->super->s_first_data_block+1, 587 1, buf); 588 if (retval) { 589 com_err("create_journal_dev", retval, 590 _("while writing journal superblock")); 591 exit(1); 592 } 593 progress_close(&progress); 594} 595 596static void show_stats(ext2_filsys fs) 597{ 598 struct ext2_super_block *s = fs->super; 599 char buf[80]; 600 char *os; 601 blk_t group_block; 602 dgrp_t i; 603 int need, col_left; 604 605 if (fs_param.s_blocks_count != s->s_blocks_count) 606 fprintf(stderr, _("warning: %u blocks unused.\n\n"), 607 fs_param.s_blocks_count - s->s_blocks_count); 608 609 memset(buf, 0, sizeof(buf)); 610 strncpy(buf, s->s_volume_name, sizeof(s->s_volume_name)); 611 printf(_("Filesystem label=%s\n"), buf); 612 fputs(_("OS type: "), stdout); 613 os = e2p_os2string(fs->super->s_creator_os); 614 fputs(os, stdout); 615 free(os); 616 printf("\n"); 617 printf(_("Block size=%u (log=%u)\n"), fs->blocksize, 618 s->s_log_block_size); 619 if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super, 620 EXT4_FEATURE_RO_COMPAT_BIGALLOC)) 621 printf(_("Cluster size=%u (log=%u)\n"), 622 fs->blocksize << fs->cluster_ratio_bits, 623 s->s_log_cluster_size); 624 else 625 printf(_("Fragment size=%u (log=%u)\n"), EXT2_CLUSTER_SIZE(s), 626 s->s_log_cluster_size); 627 printf(_("Stride=%u blocks, Stripe width=%u blocks\n"), 628 s->s_raid_stride, s->s_raid_stripe_width); 629 printf(_("%u inodes, %u blocks\n"), s->s_inodes_count, 630 s->s_blocks_count); 631 printf(_("%u blocks (%2.2f%%) reserved for the super user\n"), 632 s->s_r_blocks_count, 633 100.0 * s->s_r_blocks_count / s->s_blocks_count); 634 printf(_("First data block=%u\n"), s->s_first_data_block); 635 if (s->s_reserved_gdt_blocks) 636 printf(_("Maximum filesystem blocks=%lu\n"), 637 (s->s_reserved_gdt_blocks + fs->desc_blocks) * 638 EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group); 639 if (fs->group_desc_count > 1) 640 printf(_("%u block groups\n"), fs->group_desc_count); 641 else 642 printf(_("%u block group\n"), fs->group_desc_count); 643 if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super, 644 EXT4_FEATURE_RO_COMPAT_BIGALLOC)) 645 printf(_("%u blocks per group, %u clusters per group\n"), 646 s->s_blocks_per_group, s->s_clusters_per_group); 647 else 648 printf(_("%u blocks per group, %u fragments per group\n"), 649 s->s_blocks_per_group, s->s_clusters_per_group); 650 printf(_("%u inodes per group\n"), s->s_inodes_per_group); 651 652 if (fs->group_desc_count == 1) { 653 printf("\n"); 654 return; 655 } 656 657 printf(_("Superblock backups stored on blocks: ")); 658 group_block = s->s_first_data_block; 659 col_left = 0; 660 for (i = 1; i < fs->group_desc_count; i++) { 661 group_block += s->s_blocks_per_group; 662 if (!ext2fs_bg_has_super(fs, i)) 663 continue; 664 if (i != 1) 665 printf(", "); 666 need = int_log10(group_block) + 2; 667 if (need > col_left) { 668 printf("\n\t"); 669 col_left = 72; 670 } 671 col_left -= need; 672 printf("%u", group_block); 673 } 674 printf("\n\n"); 675} 676 677/* 678 * Set the S_CREATOR_OS field. Return true if OS is known, 679 * otherwise, 0. 680 */ 681static int set_os(struct ext2_super_block *sb, char *os) 682{ 683 if (isdigit (*os)) 684 sb->s_creator_os = atoi (os); 685 else if (strcasecmp(os, "linux") == 0) 686 sb->s_creator_os = EXT2_OS_LINUX; 687 else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0) 688 sb->s_creator_os = EXT2_OS_HURD; 689 else if (strcasecmp(os, "freebsd") == 0) 690 sb->s_creator_os = EXT2_OS_FREEBSD; 691 else if (strcasecmp(os, "lites") == 0) 692 sb->s_creator_os = EXT2_OS_LITES; 693 else 694 return 0; 695 return 1; 696} 697 698#define PATH_SET "PATH=/sbin" 699 700static void parse_extended_opts(struct ext2_super_block *param, 701 const char *opts) 702{ 703 char *buf, *token, *next, *p, *arg, *badopt = 0; 704 int len; 705 int r_usage = 0; 706 707 len = strlen(opts); 708 buf = malloc(len+1); 709 if (!buf) { 710 fprintf(stderr, 711 _("Couldn't allocate memory to parse options!\n")); 712 exit(1); 713 } 714 strcpy(buf, opts); 715 for (token = buf; token && *token; token = next) { 716 p = strchr(token, ','); 717 next = 0; 718 if (p) { 719 *p = 0; 720 next = p+1; 721 } 722 arg = strchr(token, '='); 723 if (arg) { 724 *arg = 0; 725 arg++; 726 } 727 if (strcmp(token, "stride") == 0) { 728 if (!arg) { 729 r_usage++; 730 badopt = token; 731 continue; 732 } 733 param->s_raid_stride = strtoul(arg, &p, 0); 734 if (*p) { 735 fprintf(stderr, 736 _("Invalid stride parameter: %s\n"), 737 arg); 738 r_usage++; 739 continue; 740 } 741 } else if (strcmp(token, "stripe-width") == 0 || 742 strcmp(token, "stripe_width") == 0) { 743 if (!arg) { 744 r_usage++; 745 badopt = token; 746 continue; 747 } 748 param->s_raid_stripe_width = strtoul(arg, &p, 0); 749 if (*p) { 750 fprintf(stderr, 751 _("Invalid stripe-width parameter: %s\n"), 752 arg); 753 r_usage++; 754 continue; 755 } 756 } else if (!strcmp(token, "resize")) { 757 unsigned long resize, bpg, rsv_groups; 758 unsigned long group_desc_count, desc_blocks; 759 unsigned int gdpb, blocksize; 760 int rsv_gdb; 761 762 if (!arg) { 763 r_usage++; 764 badopt = token; 765 continue; 766 } 767 768 resize = parse_num_blocks(arg, 769 param->s_log_block_size); 770 771 if (resize == 0) { 772 fprintf(stderr, 773 _("Invalid resize parameter: %s\n"), 774 arg); 775 r_usage++; 776 continue; 777 } 778 if (resize <= param->s_blocks_count) { 779 fprintf(stderr, 780 _("The resize maximum must be greater " 781 "than the filesystem size.\n")); 782 r_usage++; 783 continue; 784 } 785 786 blocksize = EXT2_BLOCK_SIZE(param); 787 bpg = param->s_blocks_per_group; 788 if (!bpg) 789 bpg = blocksize * 8; 790 gdpb = EXT2_DESC_PER_BLOCK(param); 791 group_desc_count = 792 ext2fs_div_ceil(param->s_blocks_count, bpg); 793 desc_blocks = (group_desc_count + 794 gdpb - 1) / gdpb; 795 rsv_groups = ext2fs_div_ceil(resize, bpg); 796 rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) - 797 desc_blocks; 798 if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param)) 799 rsv_gdb = EXT2_ADDR_PER_BLOCK(param); 800 801 if (rsv_gdb > 0) { 802 if (param->s_rev_level == EXT2_GOOD_OLD_REV) { 803 fprintf(stderr, 804 _("On-line resizing not supported with revision 0 filesystems\n")); 805 free(buf); 806 exit(1); 807 } 808 param->s_feature_compat |= 809 EXT2_FEATURE_COMPAT_RESIZE_INODE; 810 811 param->s_reserved_gdt_blocks = rsv_gdb; 812 } 813 } else if (!strcmp(token, "test_fs")) { 814 param->s_flags |= EXT2_FLAGS_TEST_FILESYS; 815 } else if (!strcmp(token, "lazy_itable_init")) { 816 if (arg) 817 lazy_itable_init = strtoul(arg, &p, 0); 818 else 819 lazy_itable_init = 1; 820 } else if (!strcmp(token, "discard")) { 821 discard = 1; 822 } else if (!strcmp(token, "nodiscard")) { 823 discard = 0; 824 } else { 825 r_usage++; 826 badopt = token; 827 } 828 } 829 if (r_usage) { 830 fprintf(stderr, _("\nBad option(s) specified: %s\n\n" 831 "Extended options are separated by commas, " 832 "and may take an argument which\n" 833 "\tis set off by an equals ('=') sign.\n\n" 834 "Valid extended options are:\n" 835 "\tstride=<RAID per-disk data chunk in blocks>\n" 836 "\tstripe-width=<RAID stride * data disks in blocks>\n" 837 "\tresize=<resize maximum size in blocks>\n" 838 "\tlazy_itable_init=<0 to disable, 1 to enable>\n" 839 "\ttest_fs\n" 840 "\tdiscard\n" 841 "\tnodiscard\n\n"), 842 badopt ? badopt : ""); 843 free(buf); 844 exit(1); 845 } 846 if (param->s_raid_stride && 847 (param->s_raid_stripe_width % param->s_raid_stride) != 0) 848 fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even " 849 "multiple of stride %u.\n\n"), 850 param->s_raid_stripe_width, param->s_raid_stride); 851 852 free(buf); 853} 854 855static __u32 ok_features[3] = { 856 /* Compat */ 857 EXT3_FEATURE_COMPAT_HAS_JOURNAL | 858 EXT2_FEATURE_COMPAT_RESIZE_INODE | 859 EXT2_FEATURE_COMPAT_DIR_INDEX | 860 EXT2_FEATURE_COMPAT_EXT_ATTR, 861 /* Incompat */ 862 EXT2_FEATURE_INCOMPAT_FILETYPE| 863 EXT3_FEATURE_INCOMPAT_EXTENTS| 864 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV| 865 EXT2_FEATURE_INCOMPAT_META_BG| 866 EXT4_FEATURE_INCOMPAT_FLEX_BG, 867 /* R/O compat */ 868 EXT2_FEATURE_RO_COMPAT_LARGE_FILE| 869 EXT4_FEATURE_RO_COMPAT_HUGE_FILE| 870 EXT4_FEATURE_RO_COMPAT_DIR_NLINK| 871 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE| 872 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER| 873 EXT4_FEATURE_RO_COMPAT_GDT_CSUM 874}; 875 876 877static void syntax_err_report(const char *filename, long err, int line_num) 878{ 879 fprintf(stderr, 880 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"), 881 filename, line_num, error_message(err)); 882 exit(1); 883} 884 885static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 }; 886 887static void edit_feature(const char *str, __u32 *compat_array) 888{ 889 if (!str) 890 return; 891 892 if (e2p_edit_feature(str, compat_array, ok_features)) { 893 fprintf(stderr, _("Invalid filesystem option set: %s\n"), 894 str); 895 exit(1); 896 } 897} 898 899static void edit_mntopts(const char *str, __u32 *mntopts) 900{ 901 if (!str) 902 return; 903 904 if (e2p_edit_mntopts(str, mntopts, ~0)) { 905 fprintf(stderr, _("Invalid mount option set: %s\n"), 906 str); 907 exit(1); 908 } 909} 910 911struct str_list { 912 char **list; 913 int num; 914 int max; 915}; 916 917static errcode_t init_list(struct str_list *sl) 918{ 919 sl->num = 0; 920 sl->max = 0; 921 sl->list = malloc((sl->max+1) * sizeof(char *)); 922 if (!sl->list) 923 return ENOMEM; 924 sl->list[0] = 0; 925 return 0; 926} 927 928static errcode_t push_string(struct str_list *sl, const char *str) 929{ 930 char **new_list; 931 932 if (sl->num >= sl->max) { 933 sl->max += 2; 934 new_list = realloc(sl->list, (sl->max+1) * sizeof(char *)); 935 if (!new_list) 936 return ENOMEM; 937 sl->list = new_list; 938 } 939 sl->list[sl->num] = malloc(strlen(str)+1); 940 if (sl->list[sl->num] == 0) 941 return ENOMEM; 942 strcpy(sl->list[sl->num], str); 943 sl->num++; 944 sl->list[sl->num] = 0; 945 return 0; 946} 947 948static void print_str_list(char **list) 949{ 950 char **cpp; 951 952 for (cpp = list; *cpp; cpp++) { 953 printf("'%s'", *cpp); 954 if (cpp[1]) 955 fputs(", ", stdout); 956 } 957 fputc('\n', stdout); 958} 959 960/* 961 * Return TRUE if the profile has the given subsection 962 */ 963static int profile_has_subsection(profile_t profile, const char *section, 964 const char *subsection) 965{ 966 void *state; 967 const char *names[4]; 968 char *name; 969 int ret = 0; 970 971 names[0] = section; 972 names[1] = subsection; 973 names[2] = 0; 974 975 if (profile_iterator_create(profile, names, 976 PROFILE_ITER_LIST_SECTION | 977 PROFILE_ITER_RELATIONS_ONLY, &state)) 978 return 0; 979 980 if ((profile_iterator(&state, &name, 0) == 0) && name) { 981 free(name); 982 ret = 1; 983 } 984 985 profile_iterator_free(&state); 986 return ret; 987} 988 989static char **parse_fs_type(const char *fs_type, 990 const char *usage_types, 991 struct ext2_super_block *fs_param, 992 char *progname) 993{ 994 const char *ext_type = 0; 995 char *parse_str; 996 char *profile_type = 0; 997 char *cp, *t; 998 const char *size_type; 999 struct str_list list; 1000 unsigned long meg; 1001 int is_hurd = 0; 1002 1003 if (init_list(&list)) 1004 return 0; 1005 1006 if (creator_os && (!strcasecmp(creator_os, "GNU") || 1007 !strcasecmp(creator_os, "hurd"))) 1008 is_hurd = 1; 1009 1010 if (fs_type) 1011 ext_type = fs_type; 1012 else if (is_hurd) 1013 ext_type = "ext2"; 1014 else if (!strcmp(program_name, "mke3fs")) 1015 ext_type = "ext3"; 1016 else if (progname) { 1017 ext_type = strrchr(progname, '/'); 1018 if (ext_type) 1019 ext_type++; 1020 else 1021 ext_type = progname; 1022 1023 if (!strncmp(ext_type, "mkfs.", 5)) { 1024 ext_type += 5; 1025 if (ext_type[0] == 0) 1026 ext_type = 0; 1027 } else 1028 ext_type = 0; 1029 } 1030 1031 if (!ext_type) { 1032 profile_get_string(profile, "defaults", "fs_type", 0, 1033 "ext2", &profile_type); 1034 ext_type = profile_type; 1035 if (!strcmp(ext_type, "ext2") && (journal_size != 0)) 1036 ext_type = "ext3"; 1037 } 1038 1039 1040 if (!profile_has_subsection(profile, "fs_types", ext_type) && 1041 strcmp(ext_type, "ext2")) { 1042 printf(_("\nYour mke2fs.conf file does not define the " 1043 "%s filesystem type.\n"), ext_type); 1044 if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") || 1045 !strcmp(ext_type, "ext4dev")) { 1046 printf(_("You probably need to install an updated " 1047 "mke2fs.conf file.\n\n")); 1048 } 1049 if (!force) { 1050 printf(_("Aborting...\n")); 1051 exit(1); 1052 } 1053 } 1054 1055 meg = (1024 * 1024) / EXT2_BLOCK_SIZE(fs_param); 1056 if (fs_param->s_blocks_count < 3 * meg) 1057 size_type = "floppy"; 1058 else if (fs_param->s_blocks_count < 512 * meg) 1059 size_type = "small"; 1060 else 1061 size_type = "default"; 1062 1063 if (!usage_types) 1064 usage_types = size_type; 1065 1066 parse_str = malloc(usage_types ? strlen(usage_types)+1 : 1); 1067 if (!parse_str) { 1068 free(list.list); 1069 return 0; 1070 } 1071 if (usage_types) 1072 strcpy(parse_str, usage_types); 1073 else 1074 *parse_str = '\0'; 1075 1076 if (ext_type) 1077 push_string(&list, ext_type); 1078 cp = parse_str; 1079 while (1) { 1080 t = strchr(cp, ','); 1081 if (t) 1082 *t = '\0'; 1083 1084 if (*cp) { 1085 if (profile_has_subsection(profile, "fs_types", cp)) 1086 push_string(&list, cp); 1087 else if (strcmp(cp, "default") != 0) 1088 fprintf(stderr, 1089 _("\nWarning: the fs_type %s is not " 1090 "defined in mke2fs.conf\n\n"), 1091 cp); 1092 } 1093 if (t) 1094 cp = t+1; 1095 else { 1096 cp = ""; 1097 break; 1098 } 1099 } 1100 free(parse_str); 1101 free(profile_type); 1102 if (is_hurd) 1103 push_string(&list, "hurd"); 1104 return (list.list); 1105} 1106 1107static char *get_string_from_profile(char **fs_types, const char *opt, 1108 const char *def_val) 1109{ 1110 char *ret = 0; 1111 int i; 1112 1113 for (i=0; fs_types[i]; i++); 1114 for (i-=1; i >=0 ; i--) { 1115 profile_get_string(profile, "fs_types", fs_types[i], 1116 opt, 0, &ret); 1117 if (ret) 1118 return ret; 1119 } 1120 profile_get_string(profile, "defaults", opt, 0, def_val, &ret); 1121 return (ret); 1122} 1123 1124static int get_int_from_profile(char **fs_types, const char *opt, int def_val) 1125{ 1126 int ret; 1127 char **cpp; 1128 1129 profile_get_integer(profile, "defaults", opt, 0, def_val, &ret); 1130 for (cpp = fs_types; *cpp; cpp++) 1131 profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret); 1132 return ret; 1133} 1134 1135static int get_bool_from_profile(char **fs_types, const char *opt, int def_val) 1136{ 1137 int ret; 1138 char **cpp; 1139 1140 profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret); 1141 for (cpp = fs_types; *cpp; cpp++) 1142 profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret); 1143 return ret; 1144} 1145 1146extern const char *mke2fs_default_profile; 1147static const char *default_files[] = { "<default>", 0 }; 1148 1149#ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY 1150/* 1151 * Sets the geometry of a device (stripe/stride), and returns the 1152 * device's alignment offset, if any, or a negative error. 1153 */ 1154static int get_device_geometry(const char *file, 1155 struct ext2_super_block *fs_param, 1156 int psector_size) 1157{ 1158 int rc = -1; 1159 int blocksize; 1160 blkid_probe pr; 1161 blkid_topology tp; 1162 unsigned long min_io; 1163 unsigned long opt_io; 1164 struct stat statbuf; 1165 1166 /* Nothing to do for a regular file */ 1167 if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode)) 1168 return 0; 1169 1170 pr = blkid_new_probe_from_filename(file); 1171 if (!pr) 1172 goto out; 1173 1174 tp = blkid_probe_get_topology(pr); 1175 if (!tp) 1176 goto out; 1177 1178 min_io = blkid_topology_get_minimum_io_size(tp); 1179 opt_io = blkid_topology_get_optimal_io_size(tp); 1180 blocksize = EXT2_BLOCK_SIZE(fs_param); 1181 if ((min_io == 0) && (psector_size > blocksize)) 1182 min_io = psector_size; 1183 if ((opt_io == 0) && min_io) 1184 opt_io = min_io; 1185 if ((opt_io == 0) && (psector_size > blocksize)) 1186 opt_io = psector_size; 1187 1188 /* setting stripe/stride to blocksize is pointless */ 1189 if (min_io > blocksize) 1190 fs_param->s_raid_stride = min_io / blocksize; 1191 if (opt_io > blocksize) 1192 fs_param->s_raid_stripe_width = opt_io / blocksize; 1193 1194 rc = blkid_topology_get_alignment_offset(tp); 1195out: 1196 blkid_free_probe(pr); 1197 return rc; 1198} 1199#endif 1200 1201static void PRS(int argc, char *argv[]) 1202{ 1203 int b, c; 1204 int size; 1205 char *tmp, **cpp; 1206 int blocksize = 0; 1207 int inode_ratio = 0; 1208 int inode_size = 0; 1209 unsigned long flex_bg_size = 0; 1210 double reserved_ratio = 5.0; 1211 int lsector_size = 0, psector_size = 0; 1212 int show_version_only = 0; 1213 unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */ 1214 errcode_t retval; 1215 char * oldpath = getenv("PATH"); 1216 char * extended_opts = 0; 1217 const char * fs_type = 0; 1218 const char * usage_types = 0; 1219 blk_t dev_size; 1220#ifdef __linux__ 1221 struct utsname ut; 1222#endif 1223 long sysval; 1224 int s_opt = -1, r_opt = -1; 1225 char *fs_features = 0; 1226 int use_bsize; 1227 char *newpath; 1228 int pathlen = sizeof(PATH_SET) + 1; 1229 1230 if (oldpath) 1231 pathlen += strlen(oldpath); 1232 newpath = malloc(pathlen); 1233 strcpy(newpath, PATH_SET); 1234 1235 /* Update our PATH to include /sbin */ 1236 if (oldpath) { 1237 strcat (newpath, ":"); 1238 strcat (newpath, oldpath); 1239 } 1240 putenv (newpath); 1241 1242 tmp = getenv("MKE2FS_SYNC"); 1243 if (tmp) 1244 sync_kludge = atoi(tmp); 1245 1246 /* Determine the system page size if possible */ 1247#ifdef HAVE_SYSCONF 1248#if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE)) 1249#define _SC_PAGESIZE _SC_PAGE_SIZE 1250#endif 1251#ifdef _SC_PAGESIZE 1252 sysval = sysconf(_SC_PAGESIZE); 1253 if (sysval > 0) 1254 sys_page_size = sysval; 1255#endif /* _SC_PAGESIZE */ 1256#endif /* HAVE_SYSCONF */ 1257 1258 if ((tmp = getenv("MKE2FS_CONFIG")) != NULL) 1259 config_fn[0] = tmp; 1260 profile_set_syntax_err_cb(syntax_err_report); 1261 retval = profile_init(config_fn, &profile); 1262 if (retval == ENOENT) { 1263 profile_init(default_files, &profile); 1264 profile_set_default(profile, mke2fs_default_profile); 1265 } 1266 1267 setbuf(stdout, NULL); 1268 setbuf(stderr, NULL); 1269 add_error_table(&et_ext2_error_table); 1270 add_error_table(&et_prof_error_table); 1271 memset(&fs_param, 0, sizeof(struct ext2_super_block)); 1272 fs_param.s_rev_level = 1; /* Create revision 1 filesystems now */ 1273 1274#ifdef __linux__ 1275 if (uname(&ut)) { 1276 perror("uname"); 1277 exit(1); 1278 } 1279 linux_version_code = parse_version_number(ut.release); 1280 if (linux_version_code && linux_version_code < (2*65536 + 2*256)) 1281 fs_param.s_rev_level = 0; 1282#endif 1283 1284 if (argc && *argv) { 1285 program_name = get_progname(*argv); 1286 1287 /* If called as mkfs.ext3, create a journal inode */ 1288 if (!strcmp(program_name, "mkfs.ext3") || 1289 !strcmp(program_name, "mke3fs")) 1290 journal_size = -1; 1291 } 1292 1293 while ((c = getopt (argc, argv, 1294 "b:cf:g:G:i:jl:m:no:qr:s:t:vE:FI:J:KL:M:N:O:R:ST:U:V")) != EOF) { 1295 switch (c) { 1296 case 'b': 1297 blocksize = strtol(optarg, &tmp, 0); 1298 b = (blocksize > 0) ? blocksize : -blocksize; 1299 if (b < EXT2_MIN_BLOCK_SIZE || 1300 b > EXT2_MAX_BLOCK_SIZE || *tmp) { 1301 com_err(program_name, 0, 1302 _("invalid block size - %s"), optarg); 1303 exit(1); 1304 } 1305 if (blocksize > 4096) 1306 fprintf(stderr, _("Warning: blocksize %d not " 1307 "usable on most systems.\n"), 1308 blocksize); 1309 if (blocksize > 0) 1310 fs_param.s_log_block_size = 1311 int_log2(blocksize >> 1312 EXT2_MIN_BLOCK_LOG_SIZE); 1313 break; 1314 case 'c': /* Check for bad blocks */ 1315 cflag++; 1316 break; 1317 case 'f': 1318 size = strtoul(optarg, &tmp, 0); 1319 if (size < EXT2_MIN_BLOCK_SIZE || 1320 size > EXT2_MAX_BLOCK_SIZE || *tmp) { 1321 com_err(program_name, 0, 1322 _("invalid fragment size - %s"), 1323 optarg); 1324 exit(1); 1325 } 1326 fprintf(stderr, _("Warning: fragments not supported. " 1327 "Ignoring -f option\n")); 1328 break; 1329 case 'g': 1330 fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0); 1331 if (*tmp) { 1332 com_err(program_name, 0, 1333 _("Illegal number for blocks per group")); 1334 exit(1); 1335 } 1336 if ((fs_param.s_blocks_per_group % 8) != 0) { 1337 com_err(program_name, 0, 1338 _("blocks per group must be multiple of 8")); 1339 exit(1); 1340 } 1341 break; 1342 case 'G': 1343 flex_bg_size = strtoul(optarg, &tmp, 0); 1344 if (*tmp) { 1345 com_err(program_name, 0, 1346 _("Illegal number for flex_bg size")); 1347 exit(1); 1348 } 1349 if (flex_bg_size < 1 || 1350 (flex_bg_size & (flex_bg_size-1)) != 0) { 1351 com_err(program_name, 0, 1352 _("flex_bg size must be a power of 2")); 1353 exit(1); 1354 } 1355 break; 1356 case 'i': 1357 inode_ratio = strtoul(optarg, &tmp, 0); 1358 if (inode_ratio < EXT2_MIN_BLOCK_SIZE || 1359 inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024 || 1360 *tmp) { 1361 com_err(program_name, 0, 1362 _("invalid inode ratio %s (min %d/max %d)"), 1363 optarg, EXT2_MIN_BLOCK_SIZE, 1364 EXT2_MAX_BLOCK_SIZE * 1024); 1365 exit(1); 1366 } 1367 break; 1368 case 'J': 1369 parse_journal_opts(optarg); 1370 break; 1371 case 'K': 1372 fprintf(stderr, _("Warning: -K option is deprecated and " 1373 "should not be used anymore. Use " 1374 "\'-E nodiscard\' extended option " 1375 "instead!\n")); 1376 discard = 0; 1377 break; 1378 case 'j': 1379 if (!journal_size) 1380 journal_size = -1; 1381 break; 1382 case 'l': 1383 bad_blocks_filename = malloc(strlen(optarg)+1); 1384 if (!bad_blocks_filename) { 1385 com_err(program_name, ENOMEM, 1386 _("in malloc for bad_blocks_filename")); 1387 exit(1); 1388 } 1389 strcpy(bad_blocks_filename, optarg); 1390 break; 1391 case 'm': 1392 reserved_ratio = strtod(optarg, &tmp); 1393 if ( *tmp || reserved_ratio > 50 || 1394 reserved_ratio < 0) { 1395 com_err(program_name, 0, 1396 _("invalid reserved blocks percent - %s"), 1397 optarg); 1398 exit(1); 1399 } 1400 break; 1401 case 'n': 1402 noaction++; 1403 break; 1404 case 'o': 1405 creator_os = optarg; 1406 break; 1407 case 'q': 1408 quiet = 1; 1409 break; 1410 case 'r': 1411 r_opt = strtoul(optarg, &tmp, 0); 1412 if (*tmp) { 1413 com_err(program_name, 0, 1414 _("bad revision level - %s"), optarg); 1415 exit(1); 1416 } 1417 fs_param.s_rev_level = r_opt; 1418 break; 1419 case 's': /* deprecated */ 1420 s_opt = atoi(optarg); 1421 break; 1422 case 'I': 1423 inode_size = strtoul(optarg, &tmp, 0); 1424 if (*tmp) { 1425 com_err(program_name, 0, 1426 _("invalid inode size - %s"), optarg); 1427 exit(1); 1428 } 1429 break; 1430 case 'v': 1431 verbose = 1; 1432 break; 1433 case 'F': 1434 force++; 1435 break; 1436 case 'L': 1437 volume_label = optarg; 1438 break; 1439 case 'M': 1440 mount_dir = optarg; 1441 break; 1442 case 'N': 1443 num_inodes = strtoul(optarg, &tmp, 0); 1444 if (*tmp) { 1445 com_err(program_name, 0, 1446 _("bad num inodes - %s"), optarg); 1447 exit(1); 1448 } 1449 break; 1450 case 'O': 1451 fs_features = optarg; 1452 break; 1453 case 'E': 1454 case 'R': 1455 extended_opts = optarg; 1456 break; 1457 case 'S': 1458 super_only = 1; 1459 break; 1460 case 't': 1461 fs_type = optarg; 1462 break; 1463 case 'T': 1464 usage_types = optarg; 1465 break; 1466 case 'U': 1467 fs_uuid = optarg; 1468 break; 1469 case 'V': 1470 /* Print version number and exit */ 1471 show_version_only++; 1472 break; 1473 default: 1474 usage(); 1475 } 1476 } 1477 if ((optind == argc) && !show_version_only) 1478 usage(); 1479 device_name = argv[optind++]; 1480 1481 if (!quiet || show_version_only) 1482 fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION, 1483 E2FSPROGS_DATE); 1484 1485 if (show_version_only) { 1486 fprintf(stderr, _("\tUsing %s\n"), 1487 error_message(EXT2_ET_BASE)); 1488 exit(0); 1489 } 1490 1491 /* 1492 * If there's no blocksize specified and there is a journal 1493 * device, use it to figure out the blocksize 1494 */ 1495 if (blocksize <= 0 && journal_device) { 1496 ext2_filsys jfs; 1497 io_manager io_ptr; 1498 1499#ifdef CONFIG_TESTIO_DEBUG 1500 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) { 1501 io_ptr = test_io_manager; 1502 test_io_backing_manager = unix_io_manager; 1503 } else 1504#endif 1505 io_ptr = unix_io_manager; 1506 retval = ext2fs_open(journal_device, 1507 EXT2_FLAG_JOURNAL_DEV_OK, 0, 1508 0, io_ptr, &jfs); 1509 if (retval) { 1510 com_err(program_name, retval, 1511 _("while trying to open journal device %s\n"), 1512 journal_device); 1513 exit(1); 1514 } 1515 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) { 1516 com_err(program_name, 0, 1517 _("Journal dev blocksize (%d) smaller than " 1518 "minimum blocksize %d\n"), jfs->blocksize, 1519 -blocksize); 1520 exit(1); 1521 } 1522 blocksize = jfs->blocksize; 1523 printf(_("Using journal device's blocksize: %d\n"), blocksize); 1524 fs_param.s_log_block_size = 1525 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE); 1526 ext2fs_close(jfs); 1527 } 1528 1529 if (blocksize > sys_page_size) { 1530 if (!force) { 1531 com_err(program_name, 0, 1532 _("%d-byte blocks too big for system (max %d)"), 1533 blocksize, sys_page_size); 1534 proceed_question(); 1535 } 1536 fprintf(stderr, _("Warning: %d-byte blocks too big for system " 1537 "(max %d), forced to continue\n"), 1538 blocksize, sys_page_size); 1539 } 1540 if (optind < argc) { 1541 fs_param.s_blocks_count = parse_num_blocks(argv[optind++], 1542 fs_param.s_log_block_size); 1543 if (!fs_param.s_blocks_count) { 1544 com_err(program_name, 0, 1545 _("invalid blocks count '%s' on device '%s'"), 1546 argv[optind - 1], device_name); 1547 exit(1); 1548 } 1549 } 1550 if (optind < argc) 1551 usage(); 1552 1553 if (!force) 1554 check_plausibility(device_name); 1555 check_mount(device_name, force, _("filesystem")); 1556 1557 fs_param.s_log_cluster_size = fs_param.s_log_block_size; 1558 1559 if (noaction && fs_param.s_blocks_count) { 1560 dev_size = fs_param.s_blocks_count; 1561 retval = 0; 1562 } else { 1563 retry: 1564 retval = ext2fs_get_device_size(device_name, 1565 EXT2_BLOCK_SIZE(&fs_param), 1566 &dev_size); 1567 if ((retval == EFBIG) && 1568 (blocksize == 0) && 1569 (fs_param.s_log_block_size == 0)) { 1570 fs_param.s_log_block_size = 2; 1571 blocksize = 4096; 1572 goto retry; 1573 } 1574 } 1575 1576 if (retval == EFBIG) { 1577 blk64_t big_dev_size; 1578 1579 if (blocksize < 4096) { 1580 fs_param.s_log_block_size = 2; 1581 blocksize = 4096; 1582 } 1583 retval = ext2fs_get_device_size2(device_name, 1584 EXT2_BLOCK_SIZE(&fs_param), &big_dev_size); 1585 if (retval) 1586 goto get_size_failure; 1587 if (big_dev_size == (1ULL << 32)) { 1588 dev_size = (blk_t) (big_dev_size - 1); 1589 goto got_size; 1590 } 1591 fprintf(stderr, _("%s: Size of device %s too big " 1592 "to be expressed in 32 bits\n\t" 1593 "using a blocksize of %d.\n"), 1594 program_name, device_name, EXT2_BLOCK_SIZE(&fs_param)); 1595 exit(1); 1596 } 1597get_size_failure: 1598 if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) { 1599 com_err(program_name, retval, 1600 _("while trying to determine filesystem size")); 1601 exit(1); 1602 } 1603got_size: 1604 if (!fs_param.s_blocks_count) { 1605 if (retval == EXT2_ET_UNIMPLEMENTED) { 1606 com_err(program_name, 0, 1607 _("Couldn't determine device size; you " 1608 "must specify\nthe size of the " 1609 "filesystem\n")); 1610 exit(1); 1611 } else { 1612 if (dev_size == 0) { 1613 com_err(program_name, 0, 1614 _("Device size reported to be zero. " 1615 "Invalid partition specified, or\n\t" 1616 "partition table wasn't reread " 1617 "after running fdisk, due to\n\t" 1618 "a modified partition being busy " 1619 "and in use. You may need to reboot\n\t" 1620 "to re-read your partition table.\n" 1621 )); 1622 exit(1); 1623 } 1624 fs_param.s_blocks_count = dev_size; 1625 if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param)) 1626 fs_param.s_blocks_count &= ~((sys_page_size / 1627 EXT2_BLOCK_SIZE(&fs_param))-1); 1628 } 1629 1630 } else if (!force && (fs_param.s_blocks_count > dev_size)) { 1631 com_err(program_name, 0, 1632 _("Filesystem larger than apparent device size.")); 1633 proceed_question(); 1634 } 1635 1636 fs_types = parse_fs_type(fs_type, usage_types, &fs_param, argv[0]); 1637 if (!fs_types) { 1638 fprintf(stderr, _("Failed to parse fs types list\n")); 1639 exit(1); 1640 } 1641 1642 /* Figure out what features should be enabled */ 1643 1644 tmp = NULL; 1645 if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) { 1646 tmp = get_string_from_profile(fs_types, "base_features", 1647 "sparse_super,filetype,resize_inode,dir_index"); 1648 edit_feature(tmp, &fs_param.s_feature_compat); 1649 free(tmp); 1650 1651 /* And which mount options as well */ 1652 tmp = get_string_from_profile(fs_types, "default_mntopts", 1653 "acl,user_xattr"); 1654 edit_mntopts(tmp, &fs_param.s_default_mount_opts); 1655 if (tmp) 1656 free(tmp); 1657 1658 for (cpp = fs_types; *cpp; cpp++) { 1659 tmp = NULL; 1660 profile_get_string(profile, "fs_types", *cpp, 1661 "features", "", &tmp); 1662 if (tmp && *tmp) 1663 edit_feature(tmp, &fs_param.s_feature_compat); 1664 free(tmp); 1665 } 1666 tmp = get_string_from_profile(fs_types, "default_features", 1667 ""); 1668 } 1669 edit_feature(fs_features ? fs_features : tmp, 1670 &fs_param.s_feature_compat); 1671 free(tmp); 1672 1673 if (fs_param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) { 1674 fs_types[0] = strdup("journal"); 1675 fs_types[1] = 0; 1676 } 1677 1678 if (verbose) { 1679 fputs(_("fs_types for mke2fs.conf resolution: "), stdout); 1680 print_str_list(fs_types); 1681 } 1682 1683 if (r_opt == EXT2_GOOD_OLD_REV && 1684 (fs_param.s_feature_compat || fs_param.s_feature_incompat || 1685 fs_param.s_feature_ro_compat)) { 1686 fprintf(stderr, _("Filesystem features not supported " 1687 "with revision 0 filesystems\n")); 1688 exit(1); 1689 } 1690 1691 if (s_opt > 0) { 1692 if (r_opt == EXT2_GOOD_OLD_REV) { 1693 fprintf(stderr, _("Sparse superblocks not supported " 1694 "with revision 0 filesystems\n")); 1695 exit(1); 1696 } 1697 fs_param.s_feature_ro_compat |= 1698 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER; 1699 } else if (s_opt == 0) 1700 fs_param.s_feature_ro_compat &= 1701 ~EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER; 1702 1703 if (journal_size != 0) { 1704 if (r_opt == EXT2_GOOD_OLD_REV) { 1705 fprintf(stderr, _("Journals not supported " 1706 "with revision 0 filesystems\n")); 1707 exit(1); 1708 } 1709 fs_param.s_feature_compat |= 1710 EXT3_FEATURE_COMPAT_HAS_JOURNAL; 1711 } 1712 1713 if (fs_param.s_feature_incompat & 1714 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) { 1715 reserved_ratio = 0; 1716 fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV; 1717 fs_param.s_feature_compat = 0; 1718 fs_param.s_feature_ro_compat = 0; 1719 } 1720 1721 if ((fs_param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) && 1722 (fs_param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE)) { 1723 fprintf(stderr, _("The resize_inode and meta_bg features " 1724 "are not compatible.\n" 1725 "They can not be both enabled " 1726 "simultaneously.\n")); 1727 exit(1); 1728 } 1729 1730 /* Set first meta blockgroup via an environment variable */ 1731 /* (this is mostly for debugging purposes) */ 1732 if ((fs_param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) && 1733 ((tmp = getenv("MKE2FS_FIRST_META_BG")))) 1734 fs_param.s_first_meta_bg = atoi(tmp); 1735 1736 /* Get the hardware sector sizes, if available */ 1737 retval = ext2fs_get_device_sectsize(device_name, &lsector_size); 1738 if (retval) { 1739 com_err(program_name, retval, 1740 _("while trying to determine hardware sector size")); 1741 exit(1); 1742 } 1743 retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size); 1744 if (retval) { 1745 com_err(program_name, retval, 1746 _("while trying to determine physical sector size")); 1747 exit(1); 1748 } 1749 1750 if ((tmp = getenv("MKE2FS_DEVICE_SECTSIZE")) != NULL) 1751 lsector_size = atoi(tmp); 1752 if ((tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE")) != NULL) 1753 psector_size = atoi(tmp); 1754 1755 /* Older kernels may not have physical/logical distinction */ 1756 if (!psector_size) 1757 psector_size = lsector_size; 1758 1759 if (blocksize <= 0) { 1760 use_bsize = get_int_from_profile(fs_types, "blocksize", 4096); 1761 1762 if (use_bsize == -1) { 1763 use_bsize = sys_page_size; 1764 if ((linux_version_code < (2*65536 + 6*256)) && 1765 (use_bsize > 4096)) 1766 use_bsize = 4096; 1767 } 1768 if (lsector_size && use_bsize < lsector_size) 1769 use_bsize = lsector_size; 1770 if ((blocksize < 0) && (use_bsize < (-blocksize))) 1771 use_bsize = -blocksize; 1772 blocksize = use_bsize; 1773 fs_param.s_blocks_count /= blocksize / 1024; 1774 } else { 1775 if (blocksize < lsector_size) { /* Impossible */ 1776 com_err(program_name, EINVAL, 1777 _("while setting blocksize; too small " 1778 "for device\n")); 1779 exit(1); 1780 } else if ((blocksize < psector_size) && 1781 (psector_size <= sys_page_size)) { /* Suboptimal */ 1782 fprintf(stderr, _("Warning: specified blocksize %d is " 1783 "less than device physical sectorsize %d\n"), 1784 blocksize, psector_size); 1785 } 1786 } 1787 1788 if (inode_ratio == 0) { 1789 inode_ratio = get_int_from_profile(fs_types, "inode_ratio", 1790 8192); 1791 if (inode_ratio < blocksize) 1792 inode_ratio = blocksize; 1793 } 1794 1795 fs_param.s_log_cluster_size = fs_param.s_log_block_size = 1796 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE); 1797 1798#ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY 1799 retval = get_device_geometry(device_name, &fs_param, psector_size); 1800 if (retval < 0) { 1801 fprintf(stderr, 1802 _("warning: Unable to get device geometry for %s\n"), 1803 device_name); 1804 } else if (retval) { 1805 printf(_("%s alignment is offset by %lu bytes.\n"), 1806 device_name, retval); 1807 printf(_("This may result in very poor performance, " 1808 "(re)-partitioning suggested.\n")); 1809 } 1810#endif 1811 1812 blocksize = EXT2_BLOCK_SIZE(&fs_param); 1813 1814 lazy_itable_init = 0; 1815 if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0) 1816 lazy_itable_init = 1; 1817 1818 lazy_itable_init = get_bool_from_profile(fs_types, 1819 "lazy_itable_init", 1820 lazy_itable_init); 1821 discard = get_bool_from_profile(fs_types, "discard" , discard); 1822 1823 /* Get options from profile */ 1824 for (cpp = fs_types; *cpp; cpp++) { 1825 tmp = NULL; 1826 profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp); 1827 if (tmp && *tmp) 1828 parse_extended_opts(&fs_param, tmp); 1829 free(tmp); 1830 } 1831 1832 if (extended_opts) 1833 parse_extended_opts(&fs_param, extended_opts); 1834 1835 /* Since sparse_super is the default, we would only have a problem 1836 * here if it was explicitly disabled. 1837 */ 1838 if ((fs_param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE) && 1839 !(fs_param.s_feature_ro_compat&EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)) { 1840 com_err(program_name, 0, 1841 _("reserved online resize blocks not supported " 1842 "on non-sparse filesystem")); 1843 exit(1); 1844 } 1845 1846 if (fs_param.s_blocks_per_group) { 1847 if (fs_param.s_blocks_per_group < 256 || 1848 fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) { 1849 com_err(program_name, 0, 1850 _("blocks per group count out of range")); 1851 exit(1); 1852 } 1853 } 1854 1855 if (inode_size == 0) 1856 inode_size = get_int_from_profile(fs_types, "inode_size", 0); 1857 if (!flex_bg_size && (fs_param.s_feature_incompat & 1858 EXT4_FEATURE_INCOMPAT_FLEX_BG)) 1859 flex_bg_size = get_int_from_profile(fs_types, 1860 "flex_bg_size", 16); 1861 if (flex_bg_size) { 1862 if (!(fs_param.s_feature_incompat & 1863 EXT4_FEATURE_INCOMPAT_FLEX_BG)) { 1864 com_err(program_name, 0, 1865 _("Flex_bg feature not enabled, so " 1866 "flex_bg size may not be specified")); 1867 exit(1); 1868 } 1869 fs_param.s_log_groups_per_flex = int_log2(flex_bg_size); 1870 } 1871 1872 if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) { 1873 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE || 1874 inode_size > EXT2_BLOCK_SIZE(&fs_param) || 1875 inode_size & (inode_size - 1)) { 1876 com_err(program_name, 0, 1877 _("invalid inode size %d (min %d/max %d)"), 1878 inode_size, EXT2_GOOD_OLD_INODE_SIZE, 1879 blocksize); 1880 exit(1); 1881 } 1882 fs_param.s_inode_size = inode_size; 1883 } 1884 1885 /* Make sure number of inodes specified will fit in 32 bits */ 1886 if (num_inodes == 0) { 1887 unsigned long long n; 1888 n = (unsigned long long) fs_param.s_blocks_count * blocksize / inode_ratio; 1889 if (n > ~0U) { 1890 com_err(program_name, 0, 1891 _("too many inodes (%llu), raise inode ratio?"), n); 1892 exit(1); 1893 } 1894 } else if (num_inodes > ~0U) { 1895 com_err(program_name, 0, 1896 _("too many inodes (%llu), specify < 2^32 inodes"), 1897 num_inodes); 1898 exit(1); 1899 } 1900 /* 1901 * Calculate number of inodes based on the inode ratio 1902 */ 1903 fs_param.s_inodes_count = num_inodes ? num_inodes : 1904 ((__u64) fs_param.s_blocks_count * blocksize) 1905 / inode_ratio; 1906 1907 if ((((long long)fs_param.s_inodes_count) * 1908 (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >= 1909 (((long long)fs_param.s_blocks_count) * 1910 EXT2_BLOCK_SIZE(&fs_param))) { 1911 com_err(program_name, 0, _("inode_size (%u) * inodes_count " 1912 "(%u) too big for a\n\t" 1913 "filesystem with %lu blocks, " 1914 "specify higher inode_ratio (-i)\n\t" 1915 "or lower inode count (-N).\n"), 1916 inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE, 1917 fs_param.s_inodes_count, 1918 (unsigned long) fs_param.s_blocks_count); 1919 exit(1); 1920 } 1921 1922 /* 1923 * Calculate number of blocks to reserve 1924 */ 1925 fs_param.s_r_blocks_count = (unsigned int) (reserved_ratio * 1926 fs_param.s_blocks_count / 100.0); 1927} 1928 1929static int should_do_undo(const char *name) 1930{ 1931 errcode_t retval; 1932 io_channel channel; 1933 __u16 s_magic; 1934 struct ext2_super_block super; 1935 io_manager manager = unix_io_manager; 1936 int csum_flag, force_undo; 1937 1938 csum_flag = EXT2_HAS_RO_COMPAT_FEATURE(&fs_param, 1939 EXT4_FEATURE_RO_COMPAT_GDT_CSUM); 1940 force_undo = get_int_from_profile(fs_types, "force_undo", 0); 1941 if (!force_undo && (!csum_flag || !lazy_itable_init)) 1942 return 0; 1943 1944 retval = manager->open(name, IO_FLAG_EXCLUSIVE, &channel); 1945 if (retval) { 1946 /* 1947 * We don't handle error cases instead we 1948 * declare that the file system doesn't exist 1949 * and let the rest of mke2fs take care of 1950 * error 1951 */ 1952 retval = 0; 1953 goto open_err_out; 1954 } 1955 1956 io_channel_set_blksize(channel, SUPERBLOCK_OFFSET); 1957 retval = io_channel_read_blk(channel, 1, -SUPERBLOCK_SIZE, &super); 1958 if (retval) { 1959 retval = 0; 1960 goto err_out; 1961 } 1962 1963#if defined(WORDS_BIGENDIAN) 1964 s_magic = ext2fs_swab16(super.s_magic); 1965#else 1966 s_magic = super.s_magic; 1967#endif 1968 1969 if (s_magic == EXT2_SUPER_MAGIC) 1970 retval = 1; 1971 1972err_out: 1973 io_channel_close(channel); 1974 1975open_err_out: 1976 1977 return retval; 1978} 1979 1980static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr) 1981{ 1982 errcode_t retval = 0; 1983 char *tdb_dir, *tdb_file; 1984 char *device_name, *tmp_name; 1985 1986 /* 1987 * Configuration via a conf file would be 1988 * nice 1989 */ 1990 tdb_dir = getenv("E2FSPROGS_UNDO_DIR"); 1991 if (!tdb_dir) 1992 profile_get_string(profile, "defaults", 1993 "undo_dir", 0, "/var/lib/e2fsprogs", 1994 &tdb_dir); 1995 1996 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) || 1997 access(tdb_dir, W_OK)) 1998 return 0; 1999 2000 tmp_name = strdup(name); 2001 if (!tmp_name) { 2002 alloc_fn_fail: 2003 com_err(program_name, ENOMEM, 2004 _("Couldn't allocate memory for tdb filename\n")); 2005 return ENOMEM; 2006 } 2007 device_name = basename(tmp_name); 2008 tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(device_name) + 7 + 1); 2009 if (!tdb_file) 2010 goto alloc_fn_fail; 2011 sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, device_name); 2012 2013 if (!access(tdb_file, F_OK)) { 2014 if (unlink(tdb_file) < 0) { 2015 retval = errno; 2016 com_err(program_name, retval, 2017 _("while trying to delete %s"), 2018 tdb_file); 2019 free(tdb_file); 2020 return retval; 2021 } 2022 } 2023 2024 set_undo_io_backing_manager(*io_ptr); 2025 *io_ptr = undo_io_manager; 2026 set_undo_io_backup_file(tdb_file); 2027 printf(_("Overwriting existing filesystem; this can be undone " 2028 "using the command:\n" 2029 " e2undo %s %s\n\n"), tdb_file, name); 2030 2031 free(tdb_file); 2032 free(tmp_name); 2033 return retval; 2034} 2035 2036#ifdef __linux__ 2037 2038#ifndef BLKDISCARD 2039#define BLKDISCARD _IO(0x12,119) 2040#endif 2041 2042#ifndef BLKDISCARDZEROES 2043#define BLKDISCARDZEROES _IO(0x12,124) 2044#endif 2045 2046/* 2047 * Return zero if the discard succeeds, and -1 if the discard fails. 2048 */ 2049static int mke2fs_discard_blocks(ext2_filsys fs) 2050{ 2051 int fd; 2052 int ret; 2053 int blocksize; 2054 __u64 blocks; 2055 __uint64_t range[2]; 2056 2057 blocks = fs->super->s_blocks_count; 2058 blocksize = EXT2_BLOCK_SIZE(fs->super); 2059 range[0] = 0; 2060 range[1] = blocks * blocksize; 2061 2062 fd = open64(fs->device_name, O_RDWR); 2063 2064 if (fd > 0) { 2065 ret = ioctl(fd, BLKDISCARD, &range); 2066 if (verbose) { 2067 printf(_("Calling BLKDISCARD from %llu to %llu "), 2068 (unsigned long long) range[0], 2069 (unsigned long long) range[1]); 2070 if (ret) 2071 printf(_("failed.\n")); 2072 else 2073 printf(_("succeeded.\n")); 2074 } 2075 close(fd); 2076 } 2077 return ret; 2078} 2079 2080static int mke2fs_discard_zeroes_data(ext2_filsys fs) 2081{ 2082 int fd; 2083 int ret; 2084 int discard_zeroes_data = 0; 2085 2086 fd = open64(fs->device_name, O_RDWR); 2087 2088 if (fd > 0) { 2089 ioctl(fd, BLKDISCARDZEROES, &discard_zeroes_data); 2090 close(fd); 2091 } 2092 return discard_zeroes_data; 2093} 2094#else 2095#define mke2fs_discard_blocks(fs) 1 2096#define mke2fs_discard_zeroes_data(fs) 0 2097#endif 2098 2099int main (int argc, char *argv[]) 2100{ 2101 errcode_t retval = 0; 2102 ext2_filsys fs; 2103 badblocks_list bb_list = 0; 2104 unsigned int journal_blocks; 2105 unsigned int i; 2106 int val, hash_alg; 2107 io_manager io_ptr; 2108 char tdb_string[40]; 2109 char *hash_alg_str; 2110 int itable_zeroed = 0; 2111 2112#ifdef ENABLE_NLS 2113 setlocale(LC_MESSAGES, ""); 2114 setlocale(LC_CTYPE, ""); 2115 bindtextdomain(NLS_CAT_NAME, LOCALEDIR); 2116 textdomain(NLS_CAT_NAME); 2117#endif 2118 PRS(argc, argv); 2119 2120#ifdef CONFIG_TESTIO_DEBUG 2121 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) { 2122 io_ptr = test_io_manager; 2123 test_io_backing_manager = unix_io_manager; 2124 } else 2125#endif 2126 io_ptr = unix_io_manager; 2127 2128 if (should_do_undo(device_name)) { 2129 retval = mke2fs_setup_tdb(device_name, &io_ptr); 2130 if (retval) 2131 exit(1); 2132 } 2133 2134 /* 2135 * Initialize the superblock.... 2136 */ 2137 retval = ext2fs_initialize(device_name, EXT2_FLAG_EXCLUSIVE, &fs_param, 2138 io_ptr, &fs); 2139 if (retval) { 2140 com_err(device_name, retval, _("while setting up superblock")); 2141 exit(1); 2142 } 2143 2144 /* Can't undo discard ... */ 2145 if (!noaction && discard && (io_ptr != undo_io_manager)) { 2146 retval = mke2fs_discard_blocks(fs); 2147 2148 if (!retval && mke2fs_discard_zeroes_data(fs)) { 2149 if (verbose) 2150 printf(_("Discard succeeded and will return 0s " 2151 " - skipping inode table wipe\n")); 2152 lazy_itable_init = 1; 2153 itable_zeroed = 1; 2154 } 2155 } 2156 2157 sprintf(tdb_string, "tdb_data_size=%d", fs->blocksize <= 4096 ? 2158 32768 : fs->blocksize * 8); 2159 io_channel_set_options(fs->io, tdb_string); 2160 2161 if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS) 2162 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS; 2163 2164 if ((fs_param.s_feature_incompat & 2165 (EXT3_FEATURE_INCOMPAT_EXTENTS|EXT4_FEATURE_INCOMPAT_FLEX_BG)) || 2166 (fs_param.s_feature_ro_compat & 2167 (EXT4_FEATURE_RO_COMPAT_HUGE_FILE|EXT4_FEATURE_RO_COMPAT_GDT_CSUM| 2168 EXT4_FEATURE_RO_COMPAT_DIR_NLINK| 2169 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE))) 2170 fs->super->s_kbytes_written = 1; 2171 2172 /* 2173 * Wipe out the old on-disk superblock 2174 */ 2175 if (!noaction) 2176 zap_sector(fs, 2, 6); 2177 2178 /* 2179 * Parse or generate a UUID for the filesystem 2180 */ 2181 if (fs_uuid) { 2182 if (uuid_parse(fs_uuid, fs->super->s_uuid) !=0) { 2183 com_err(device_name, 0, "could not parse UUID: %s\n", 2184 fs_uuid); 2185 exit(1); 2186 } 2187 } else 2188 uuid_generate(fs->super->s_uuid); 2189 2190 /* 2191 * Initialize the directory index variables 2192 */ 2193 hash_alg_str = get_string_from_profile(fs_types, "hash_alg", 2194 "half_md4"); 2195 hash_alg = e2p_string2hash(hash_alg_str); 2196 free(hash_alg_str); 2197 fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg : 2198 EXT2_HASH_HALF_MD4; 2199 uuid_generate((unsigned char *) fs->super->s_hash_seed); 2200 2201 /* 2202 * Periodic checks can be enabled/disabled via config file. 2203 * Note we override the kernel include file's idea of what the default 2204 * check interval (never) should be. It's a good idea to check at 2205 * least *occasionally*, specially since servers will never rarely get 2206 * to reboot, since Linux is so robust these days. :-) 2207 * 2208 * 180 days (six months) seems like a good value. 2209 */ 2210#ifdef EXT2_DFL_CHECKINTERVAL 2211#undef EXT2_DFL_CHECKINTERVAL 2212#endif 2213#define EXT2_DFL_CHECKINTERVAL (86400L * 180L) 2214 2215 if (get_bool_from_profile(fs_types, "enable_periodic_fsck", 0)) { 2216 fs->super->s_checkinterval = EXT2_DFL_CHECKINTERVAL; 2217 fs->super->s_max_mnt_count = EXT2_DFL_MAX_MNT_COUNT; 2218 /* 2219 * Add "jitter" to the superblock's check interval so that we 2220 * don't check all the filesystems at the same time. We use a 2221 * kludgy hack of using the UUID to derive a random jitter value 2222 */ 2223 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++) 2224 val += fs->super->s_uuid[i]; 2225 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT; 2226 } 2227 2228 /* 2229 * Override the creator OS, if applicable 2230 */ 2231 if (creator_os && !set_os(fs->super, creator_os)) { 2232 com_err (program_name, 0, _("unknown os - %s"), creator_os); 2233 exit(1); 2234 } 2235 2236 /* 2237 * For the Hurd, we will turn off filetype since it doesn't 2238 * support it. 2239 */ 2240 if (fs->super->s_creator_os == EXT2_OS_HURD) 2241 fs->super->s_feature_incompat &= 2242 ~EXT2_FEATURE_INCOMPAT_FILETYPE; 2243 2244 /* 2245 * Set the volume label... 2246 */ 2247 if (volume_label) { 2248 memset(fs->super->s_volume_name, 0, 2249 sizeof(fs->super->s_volume_name)); 2250 strncpy(fs->super->s_volume_name, volume_label, 2251 sizeof(fs->super->s_volume_name)); 2252 } 2253 2254 /* 2255 * Set the last mount directory 2256 */ 2257 if (mount_dir) { 2258 memset(fs->super->s_last_mounted, 0, 2259 sizeof(fs->super->s_last_mounted)); 2260 strncpy(fs->super->s_last_mounted, mount_dir, 2261 sizeof(fs->super->s_last_mounted)); 2262 } 2263 2264 if (!quiet || noaction) 2265 show_stats(fs); 2266 2267 if (noaction) 2268 exit(0); 2269 2270 if (fs->super->s_feature_incompat & 2271 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) { 2272 create_journal_dev(fs); 2273 exit(ext2fs_close(fs) ? 1 : 0); 2274 } 2275 2276 if (bad_blocks_filename) 2277 read_bb_file(fs, &bb_list, bad_blocks_filename); 2278 if (cflag) 2279 test_disk(fs, &bb_list); 2280 2281 handle_bad_blocks(fs, bb_list); 2282 fs->stride = fs_stride = fs->super->s_raid_stride; 2283 retval = ext2fs_allocate_tables(fs); 2284 if (retval) { 2285 com_err(program_name, retval, 2286 _("while trying to allocate filesystem tables")); 2287 exit(1); 2288 } 2289 if (super_only) { 2290 fs->super->s_state |= EXT2_ERROR_FS; 2291 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY); 2292 } else { 2293 /* rsv must be a power of two (64kB is MD RAID sb alignment) */ 2294 unsigned int rsv = 65536 / fs->blocksize; 2295 unsigned long blocks = fs->super->s_blocks_count; 2296 unsigned long start; 2297 blk_t ret_blk; 2298 2299#ifdef ZAP_BOOTBLOCK 2300 zap_sector(fs, 0, 2); 2301#endif 2302 2303 /* 2304 * Wipe out any old MD RAID (or other) metadata at the end 2305 * of the device. This will also verify that the device is 2306 * as large as we think. Be careful with very small devices. 2307 */ 2308 start = (blocks & ~(rsv - 1)); 2309 if (start > rsv) 2310 start -= rsv; 2311 if (start > 0) 2312 retval = ext2fs_zero_blocks(fs, start, blocks - start, 2313 &ret_blk, NULL); 2314 2315 if (retval) { 2316 com_err(program_name, retval, 2317 _("while zeroing block %u at end of filesystem"), 2318 ret_blk); 2319 } 2320 write_inode_tables(fs, lazy_itable_init, itable_zeroed); 2321 create_root_dir(fs); 2322 create_lost_and_found(fs); 2323 reserve_inodes(fs); 2324 create_bad_block_inode(fs, bb_list); 2325 if (fs->super->s_feature_compat & 2326 EXT2_FEATURE_COMPAT_RESIZE_INODE) { 2327 retval = ext2fs_create_resize_inode(fs); 2328 if (retval) { 2329 com_err("ext2fs_create_resize_inode", retval, 2330 _("while reserving blocks for online resize")); 2331 exit(1); 2332 } 2333 } 2334 } 2335 2336 if (journal_device) { 2337 ext2_filsys jfs; 2338 2339 if (!force) 2340 check_plausibility(journal_device); 2341 check_mount(journal_device, force, _("journal")); 2342 2343 retval = ext2fs_open(journal_device, EXT2_FLAG_RW| 2344 EXT2_FLAG_JOURNAL_DEV_OK, 0, 2345 fs->blocksize, unix_io_manager, &jfs); 2346 if (retval) { 2347 com_err(program_name, retval, 2348 _("while trying to open journal device %s\n"), 2349 journal_device); 2350 exit(1); 2351 } 2352 if (!quiet) { 2353 printf(_("Adding journal to device %s: "), 2354 journal_device); 2355 fflush(stdout); 2356 } 2357 retval = ext2fs_add_journal_device(fs, jfs); 2358 if(retval) { 2359 com_err (program_name, retval, 2360 _("\n\twhile trying to add journal to device %s"), 2361 journal_device); 2362 exit(1); 2363 } 2364 if (!quiet) 2365 printf(_("done\n")); 2366 ext2fs_close(jfs); 2367 free(journal_device); 2368 } else if ((journal_size) || 2369 (fs_param.s_feature_compat & 2370 EXT3_FEATURE_COMPAT_HAS_JOURNAL)) { 2371 journal_blocks = figure_journal_size(journal_size, fs); 2372 2373 if (super_only) { 2374 printf(_("Skipping journal creation in super-only mode\n")); 2375 fs->super->s_journal_inum = EXT2_JOURNAL_INO; 2376 goto no_journal; 2377 } 2378 2379 if (!journal_blocks) { 2380 fs->super->s_feature_compat &= 2381 ~EXT3_FEATURE_COMPAT_HAS_JOURNAL; 2382 goto no_journal; 2383 } 2384 if (!quiet) { 2385 printf(_("Creating journal (%u blocks): "), 2386 journal_blocks); 2387 fflush(stdout); 2388 } 2389 retval = ext2fs_add_journal_inode(fs, journal_blocks, 2390 journal_flags); 2391 if (retval) { 2392 com_err (program_name, retval, 2393 _("\n\twhile trying to create journal")); 2394 exit(1); 2395 } 2396 if (!quiet) 2397 printf(_("done\n")); 2398 } 2399no_journal: 2400 2401 if (!quiet) 2402 printf(_("Writing superblocks and " 2403 "filesystem accounting information: ")); 2404 retval = ext2fs_flush(fs); 2405 if (retval) { 2406 fprintf(stderr, 2407 _("\nWarning, had trouble writing out superblocks.")); 2408 } 2409 if (!quiet) { 2410 printf(_("done\n\n")); 2411 if (!getenv("MKE2FS_SKIP_CHECK_MSG")) 2412 print_check_message(fs); 2413 } 2414 val = ext2fs_close(fs); 2415 remove_error_table(&et_ext2_error_table); 2416 remove_error_table(&et_prof_error_table); 2417 profile_release(profile); 2418 for (i=0; fs_types[i]; i++) 2419 free(fs_types[i]); 2420 free(fs_types); 2421 return (retval || val) ? 1 : 0; 2422} 2423