mke2fs.c revision 49cdefd3312c5ac81ec5d233d62441281ad26e55
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 "config.h" 22#include <stdio.h> 23#include <string.h> 24#include <strings.h> 25#include <fcntl.h> 26#include <ctype.h> 27#include <time.h> 28#ifdef __linux__ 29#include <sys/utsname.h> 30#endif 31#ifdef HAVE_GETOPT_H 32#include <getopt.h> 33#else 34extern char *optarg; 35extern int optind; 36#endif 37#ifdef HAVE_UNISTD_H 38#include <unistd.h> 39#endif 40#ifdef HAVE_STDLIB_H 41#include <stdlib.h> 42#endif 43#ifdef HAVE_ERRNO_H 44#include <errno.h> 45#endif 46#include <sys/ioctl.h> 47#include <sys/types.h> 48#include <sys/stat.h> 49#include <libgen.h> 50#include <limits.h> 51#include <blkid/blkid.h> 52 53#include "ext2fs/ext2_fs.h" 54#include "ext2fs/ext2fsP.h" 55#include "et/com_err.h" 56#include "uuid/uuid.h" 57#include "e2p/e2p.h" 58#include "ext2fs/ext2fs.h" 59#include "util.h" 60#include "profile.h" 61#include "prof_err.h" 62#include "../version.h" 63#include "nls-enable.h" 64#include "quota/mkquota.h" 65 66#define STRIDE_LENGTH 8 67 68#define MAX_32_NUM ((((unsigned long long) 1) << 32) - 1) 69 70#ifndef __sparc__ 71#define ZAP_BOOTBLOCK 72#endif 73 74#define DISCARD_STEP_MB (2048) 75 76extern int isatty(int); 77extern FILE *fpopen(const char *cmd, const char *mode); 78 79const char * program_name = "mke2fs"; 80const char * device_name /* = NULL */; 81 82/* Command line options */ 83int cflag; 84int verbose; 85int quiet; 86int super_only; 87int discard = 1; /* attempt to discard device before fs creation */ 88int direct_io; 89int force; 90int noaction; 91int journal_size; 92int journal_flags; 93int lazy_itable_init; 94char *bad_blocks_filename; 95__u32 fs_stride; 96int quotatype = -1; /* Initialize both user and group quotas by default */ 97 98struct ext2_super_block fs_param; 99char *fs_uuid = NULL; 100char *creator_os; 101char *volume_label; 102char *mount_dir; 103char *journal_device; 104int sync_kludge; /* Set using the MKE2FS_SYNC env. option */ 105char **fs_types; 106 107profile_t profile; 108 109int sys_page_size = 4096; 110int linux_version_code = 0; 111 112static void usage(void) 113{ 114 fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] " 115 "[-C cluster-size]\n\t[-i bytes-per-inode] [-I inode-size] " 116 "[-J journal-options]\n" 117 "\t[-G flex-group-size] [-N number-of-inodes]\n" 118 "\t[-m reserved-blocks-percentage] [-o creator-os]\n" 119 "\t[-g blocks-per-group] [-L volume-label] " 120 "[-M last-mounted-directory]\n\t[-O feature[,...]] " 121 "[-r fs-revision] [-E extended-option[,...]]\n" 122 "\t[-t fs-type] [-T usage-type ] [-U UUID] " 123 "[-jnqvDFKSV] device [blocks-count]\n"), 124 program_name); 125 exit(1); 126} 127 128static int int_log2(unsigned long long arg) 129{ 130 int l = 0; 131 132 arg >>= 1; 133 while (arg) { 134 l++; 135 arg >>= 1; 136 } 137 return l; 138} 139 140static int int_log10(unsigned long long arg) 141{ 142 int l; 143 144 for (l=0; arg ; l++) 145 arg = arg / 10; 146 return l; 147} 148 149static int parse_version_number(const char *s) 150{ 151 int major, minor, rev; 152 char *endptr; 153 const char *cp = s; 154 155 if (!s) 156 return 0; 157 major = strtol(cp, &endptr, 10); 158 if (cp == endptr || *endptr != '.') 159 return 0; 160 cp = endptr + 1; 161 minor = strtol(cp, &endptr, 10); 162 if (cp == endptr || *endptr != '.') 163 return 0; 164 cp = endptr + 1; 165 rev = strtol(cp, &endptr, 10); 166 if (cp == endptr) 167 return 0; 168 return ((((major * 256) + minor) * 256) + rev); 169} 170 171/* 172 * Helper function for read_bb_file and test_disk 173 */ 174static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk) 175{ 176 fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk); 177 return; 178} 179 180/* 181 * Reads the bad blocks list from a file 182 */ 183static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list, 184 const char *bad_blocks_file) 185{ 186 FILE *f; 187 errcode_t retval; 188 189 f = fopen(bad_blocks_file, "r"); 190 if (!f) { 191 com_err("read_bad_blocks_file", errno, 192 _("while trying to open %s"), bad_blocks_file); 193 exit(1); 194 } 195 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block); 196 fclose (f); 197 if (retval) { 198 com_err("ext2fs_read_bb_FILE", retval, 199 _("while reading in list of bad blocks from file")); 200 exit(1); 201 } 202} 203 204/* 205 * Runs the badblocks program to test the disk 206 */ 207static void test_disk(ext2_filsys fs, badblocks_list *bb_list) 208{ 209 FILE *f; 210 errcode_t retval; 211 char buf[1024]; 212 213 sprintf(buf, "badblocks -b %d -X %s%s%s %llu", fs->blocksize, 214 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "", 215 fs->device_name, ext2fs_blocks_count(fs->super)-1); 216 if (verbose) 217 printf(_("Running command: %s\n"), buf); 218 f = popen(buf, "r"); 219 if (!f) { 220 com_err("popen", errno, 221 _("while trying to run '%s'"), buf); 222 exit(1); 223 } 224 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block); 225 pclose(f); 226 if (retval) { 227 com_err("ext2fs_read_bb_FILE", retval, 228 _("while processing list of bad blocks from program")); 229 exit(1); 230 } 231} 232 233static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list) 234{ 235 dgrp_t i; 236 blk_t j; 237 unsigned must_be_good; 238 blk_t blk; 239 badblocks_iterate bb_iter; 240 errcode_t retval; 241 blk_t group_block; 242 int group; 243 int group_bad; 244 245 if (!bb_list) 246 return; 247 248 /* 249 * The primary superblock and group descriptors *must* be 250 * good; if not, abort. 251 */ 252 must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks; 253 for (i = fs->super->s_first_data_block; i <= must_be_good; i++) { 254 if (ext2fs_badblocks_list_test(bb_list, i)) { 255 fprintf(stderr, _("Block %d in primary " 256 "superblock/group descriptor area bad.\n"), i); 257 fprintf(stderr, _("Blocks %u through %u must be good " 258 "in order to build a filesystem.\n"), 259 fs->super->s_first_data_block, must_be_good); 260 fputs(_("Aborting....\n"), stderr); 261 exit(1); 262 } 263 } 264 265 /* 266 * See if any of the bad blocks are showing up in the backup 267 * superblocks and/or group descriptors. If so, issue a 268 * warning and adjust the block counts appropriately. 269 */ 270 group_block = fs->super->s_first_data_block + 271 fs->super->s_blocks_per_group; 272 273 for (i = 1; i < fs->group_desc_count; i++) { 274 group_bad = 0; 275 for (j=0; j < fs->desc_blocks+1; j++) { 276 if (ext2fs_badblocks_list_test(bb_list, 277 group_block + j)) { 278 if (!group_bad) 279 fprintf(stderr, 280_("Warning: the backup superblock/group descriptors at block %u contain\n" 281" bad blocks.\n\n"), 282 group_block); 283 group_bad++; 284 group = ext2fs_group_of_blk2(fs, group_block+j); 285 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1); 286 ext2fs_group_desc_csum_set(fs, group); 287 ext2fs_free_blocks_count_add(fs->super, 1); 288 } 289 } 290 group_block += fs->super->s_blocks_per_group; 291 } 292 293 /* 294 * Mark all the bad blocks as used... 295 */ 296 retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter); 297 if (retval) { 298 com_err("ext2fs_badblocks_list_iterate_begin", retval, 299 _("while marking bad blocks as used")); 300 exit(1); 301 } 302 while (ext2fs_badblocks_list_iterate(bb_iter, &blk)) 303 ext2fs_mark_block_bitmap2(fs->block_map, EXT2FS_B2C(fs, blk)); 304 ext2fs_badblocks_list_iterate_end(bb_iter); 305} 306 307static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed) 308{ 309 errcode_t retval; 310 blk64_t blk; 311 dgrp_t i; 312 int num; 313 struct ext2fs_numeric_progress_struct progress; 314 315 ext2fs_numeric_progress_init(fs, &progress, 316 _("Writing inode tables: "), 317 fs->group_desc_count); 318 319 for (i = 0; i < fs->group_desc_count; i++) { 320 ext2fs_numeric_progress_update(fs, &progress, i); 321 322 blk = ext2fs_inode_table_loc(fs, i); 323 num = fs->inode_blocks_per_group; 324 325 if (lazy_flag) 326 num = ext2fs_div_ceil((fs->super->s_inodes_per_group - 327 ext2fs_bg_itable_unused(fs, i)) * 328 EXT2_INODE_SIZE(fs->super), 329 EXT2_BLOCK_SIZE(fs->super)); 330 if (!lazy_flag || itable_zeroed) { 331 /* The kernel doesn't need to zero the itable blocks */ 332 ext2fs_bg_flags_set(fs, i, EXT2_BG_INODE_ZEROED); 333 ext2fs_group_desc_csum_set(fs, i); 334 } 335 retval = ext2fs_zero_blocks2(fs, blk, num, &blk, &num); 336 if (retval) { 337 fprintf(stderr, _("\nCould not write %d " 338 "blocks in inode table starting at %llu: %s\n"), 339 num, blk, error_message(retval)); 340 exit(1); 341 } 342 if (sync_kludge) { 343 if (sync_kludge == 1) 344 sync(); 345 else if ((i % sync_kludge) == 0) 346 sync(); 347 } 348 } 349 ext2fs_zero_blocks2(0, 0, 0, 0, 0); 350 ext2fs_numeric_progress_close(fs, &progress, 351 _("done \n")); 352} 353 354static void create_root_dir(ext2_filsys fs) 355{ 356 errcode_t retval; 357 struct ext2_inode inode; 358 __u32 uid, gid; 359 360 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0); 361 if (retval) { 362 com_err("ext2fs_mkdir", retval, _("while creating root dir")); 363 exit(1); 364 } 365 if (geteuid()) { 366 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode); 367 if (retval) { 368 com_err("ext2fs_read_inode", retval, 369 _("while reading root inode")); 370 exit(1); 371 } 372 uid = getuid(); 373 inode.i_uid = uid; 374 ext2fs_set_i_uid_high(inode, uid >> 16); 375 if (uid) { 376 gid = getgid(); 377 inode.i_gid = gid; 378 ext2fs_set_i_gid_high(inode, gid >> 16); 379 } 380 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode); 381 if (retval) { 382 com_err("ext2fs_write_inode", retval, 383 _("while setting root inode ownership")); 384 exit(1); 385 } 386 } 387} 388 389static void create_lost_and_found(ext2_filsys fs) 390{ 391 unsigned int lpf_size = 0; 392 errcode_t retval; 393 ext2_ino_t ino; 394 const char *name = "lost+found"; 395 int i; 396 397 fs->umask = 077; 398 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name); 399 if (retval) { 400 com_err("ext2fs_mkdir", retval, 401 _("while creating /lost+found")); 402 exit(1); 403 } 404 405 retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino); 406 if (retval) { 407 com_err("ext2_lookup", retval, 408 _("while looking up /lost+found")); 409 exit(1); 410 } 411 412 for (i=1; i < EXT2_NDIR_BLOCKS; i++) { 413 /* Ensure that lost+found is at least 2 blocks, so we always 414 * test large empty blocks for big-block filesystems. */ 415 if ((lpf_size += fs->blocksize) >= 16*1024 && 416 lpf_size >= 2 * fs->blocksize) 417 break; 418 retval = ext2fs_expand_dir(fs, ino); 419 if (retval) { 420 com_err("ext2fs_expand_dir", retval, 421 _("while expanding /lost+found")); 422 exit(1); 423 } 424 } 425} 426 427static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list) 428{ 429 errcode_t retval; 430 431 ext2fs_mark_inode_bitmap2(fs->inode_map, EXT2_BAD_INO); 432 ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0); 433 retval = ext2fs_update_bb_inode(fs, bb_list); 434 if (retval) { 435 com_err("ext2fs_update_bb_inode", retval, 436 _("while setting bad block inode")); 437 exit(1); 438 } 439 440} 441 442static void reserve_inodes(ext2_filsys fs) 443{ 444 ext2_ino_t i; 445 446 for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++) 447 ext2fs_inode_alloc_stats2(fs, i, +1, 0); 448 ext2fs_mark_ib_dirty(fs); 449} 450 451#define BSD_DISKMAGIC (0x82564557UL) /* The disk magic number */ 452#define BSD_MAGICDISK (0x57455682UL) /* The disk magic number reversed */ 453#define BSD_LABEL_OFFSET 64 454 455static void zap_sector(ext2_filsys fs, int sect, int nsect) 456{ 457 char *buf; 458 int retval; 459 unsigned int *magic; 460 461 buf = malloc(512*nsect); 462 if (!buf) { 463 printf(_("Out of memory erasing sectors %d-%d\n"), 464 sect, sect + nsect - 1); 465 exit(1); 466 } 467 468 if (sect == 0) { 469 /* Check for a BSD disklabel, and don't erase it if so */ 470 retval = io_channel_read_blk64(fs->io, 0, -512, buf); 471 if (retval) 472 fprintf(stderr, 473 _("Warning: could not read block 0: %s\n"), 474 error_message(retval)); 475 else { 476 magic = (unsigned int *) (buf + BSD_LABEL_OFFSET); 477 if ((*magic == BSD_DISKMAGIC) || 478 (*magic == BSD_MAGICDISK)) 479 return; 480 } 481 } 482 483 memset(buf, 0, 512*nsect); 484 io_channel_set_blksize(fs->io, 512); 485 retval = io_channel_write_blk64(fs->io, sect, -512*nsect, buf); 486 io_channel_set_blksize(fs->io, fs->blocksize); 487 free(buf); 488 if (retval) 489 fprintf(stderr, _("Warning: could not erase sector %d: %s\n"), 490 sect, error_message(retval)); 491} 492 493static void create_journal_dev(ext2_filsys fs) 494{ 495 struct ext2fs_numeric_progress_struct progress; 496 errcode_t retval; 497 char *buf; 498 blk64_t blk, err_blk; 499 int c, count, err_count; 500 501 retval = ext2fs_create_journal_superblock(fs, 502 ext2fs_blocks_count(fs->super), 0, &buf); 503 if (retval) { 504 com_err("create_journal_dev", retval, 505 _("while initializing journal superblock")); 506 exit(1); 507 } 508 509 if (journal_flags & EXT2_MKJOURNAL_LAZYINIT) 510 goto write_superblock; 511 512 ext2fs_numeric_progress_init(fs, &progress, 513 _("Zeroing journal device: "), 514 ext2fs_blocks_count(fs->super)); 515 blk = 0; 516 count = ext2fs_blocks_count(fs->super); 517 while (count > 0) { 518 if (count > 1024) 519 c = 1024; 520 else 521 c = count; 522 retval = ext2fs_zero_blocks2(fs, blk, c, &err_blk, &err_count); 523 if (retval) { 524 com_err("create_journal_dev", retval, 525 _("while zeroing journal device " 526 "(block %llu, count %d)"), 527 err_blk, err_count); 528 exit(1); 529 } 530 blk += c; 531 count -= c; 532 ext2fs_numeric_progress_update(fs, &progress, blk); 533 } 534 ext2fs_zero_blocks2(0, 0, 0, 0, 0); 535 536 ext2fs_numeric_progress_close(fs, &progress, NULL); 537write_superblock: 538 retval = io_channel_write_blk64(fs->io, 539 fs->super->s_first_data_block+1, 540 1, buf); 541 if (retval) { 542 com_err("create_journal_dev", retval, 543 _("while writing journal superblock")); 544 exit(1); 545 } 546} 547 548static void show_stats(ext2_filsys fs) 549{ 550 struct ext2_super_block *s = fs->super; 551 char buf[80]; 552 char *os; 553 blk64_t group_block; 554 dgrp_t i; 555 int need, col_left; 556 557 if (ext2fs_blocks_count(&fs_param) != ext2fs_blocks_count(s)) 558 fprintf(stderr, _("warning: %llu blocks unused.\n\n"), 559 ext2fs_blocks_count(&fs_param) - ext2fs_blocks_count(s)); 560 561 memset(buf, 0, sizeof(buf)); 562 strncpy(buf, s->s_volume_name, sizeof(s->s_volume_name)); 563 printf(_("Filesystem label=%s\n"), buf); 564 os = e2p_os2string(fs->super->s_creator_os); 565 if (os) 566 printf(_("OS type: %s\n"), os); 567 free(os); 568 printf(_("Block size=%u (log=%u)\n"), fs->blocksize, 569 s->s_log_block_size); 570 if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super, 571 EXT4_FEATURE_RO_COMPAT_BIGALLOC)) 572 printf(_("Cluster size=%u (log=%u)\n"), 573 fs->blocksize << fs->cluster_ratio_bits, 574 s->s_log_cluster_size); 575 else 576 printf(_("Fragment size=%u (log=%u)\n"), EXT2_CLUSTER_SIZE(s), 577 s->s_log_cluster_size); 578 printf(_("Stride=%u blocks, Stripe width=%u blocks\n"), 579 s->s_raid_stride, s->s_raid_stripe_width); 580 printf(_("%u inodes, %llu blocks\n"), s->s_inodes_count, 581 ext2fs_blocks_count(s)); 582 printf(_("%llu blocks (%2.2f%%) reserved for the super user\n"), 583 ext2fs_r_blocks_count(s), 584 100.0 * ext2fs_r_blocks_count(s) / ext2fs_blocks_count(s)); 585 printf(_("First data block=%u\n"), s->s_first_data_block); 586 if (s->s_reserved_gdt_blocks) 587 printf(_("Maximum filesystem blocks=%lu\n"), 588 (s->s_reserved_gdt_blocks + fs->desc_blocks) * 589 EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group); 590 if (fs->group_desc_count > 1) 591 printf(_("%u block groups\n"), fs->group_desc_count); 592 else 593 printf(_("%u block group\n"), fs->group_desc_count); 594 if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super, 595 EXT4_FEATURE_RO_COMPAT_BIGALLOC)) 596 printf(_("%u blocks per group, %u clusters per group\n"), 597 s->s_blocks_per_group, s->s_clusters_per_group); 598 else 599 printf(_("%u blocks per group, %u fragments per group\n"), 600 s->s_blocks_per_group, s->s_clusters_per_group); 601 printf(_("%u inodes per group\n"), s->s_inodes_per_group); 602 603 if (fs->group_desc_count == 1) { 604 printf("\n"); 605 return; 606 } 607 608 printf(_("Superblock backups stored on blocks: ")); 609 group_block = s->s_first_data_block; 610 col_left = 0; 611 for (i = 1; i < fs->group_desc_count; i++) { 612 group_block += s->s_blocks_per_group; 613 if (!ext2fs_bg_has_super(fs, i)) 614 continue; 615 if (i != 1) 616 printf(", "); 617 need = int_log10(group_block) + 2; 618 if (need > col_left) { 619 printf("\n\t"); 620 col_left = 72; 621 } 622 col_left -= need; 623 printf("%llu", group_block); 624 } 625 printf("\n\n"); 626} 627 628/* 629 * Set the S_CREATOR_OS field. Return true if OS is known, 630 * otherwise, 0. 631 */ 632static int set_os(struct ext2_super_block *sb, char *os) 633{ 634 if (isdigit (*os)) 635 sb->s_creator_os = atoi (os); 636 else if (strcasecmp(os, "linux") == 0) 637 sb->s_creator_os = EXT2_OS_LINUX; 638 else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0) 639 sb->s_creator_os = EXT2_OS_HURD; 640 else if (strcasecmp(os, "freebsd") == 0) 641 sb->s_creator_os = EXT2_OS_FREEBSD; 642 else if (strcasecmp(os, "lites") == 0) 643 sb->s_creator_os = EXT2_OS_LITES; 644 else 645 return 0; 646 return 1; 647} 648 649#define PATH_SET "PATH=/sbin" 650 651static void parse_extended_opts(struct ext2_super_block *param, 652 const char *opts) 653{ 654 char *buf, *token, *next, *p, *arg, *badopt = 0; 655 int len; 656 int r_usage = 0; 657 658 len = strlen(opts); 659 buf = malloc(len+1); 660 if (!buf) { 661 fprintf(stderr, 662 _("Couldn't allocate memory to parse options!\n")); 663 exit(1); 664 } 665 strcpy(buf, opts); 666 for (token = buf; token && *token; token = next) { 667 p = strchr(token, ','); 668 next = 0; 669 if (p) { 670 *p = 0; 671 next = p+1; 672 } 673 arg = strchr(token, '='); 674 if (arg) { 675 *arg = 0; 676 arg++; 677 } 678 if (strcmp(token, "mmp_update_interval") == 0) { 679 if (!arg) { 680 r_usage++; 681 badopt = token; 682 continue; 683 } 684 param->s_mmp_update_interval = strtoul(arg, &p, 0); 685 if (*p) { 686 fprintf(stderr, 687 _("Invalid mmp_update_interval: %s\n"), 688 arg); 689 r_usage++; 690 continue; 691 } 692 } else if (strcmp(token, "stride") == 0) { 693 if (!arg) { 694 r_usage++; 695 badopt = token; 696 continue; 697 } 698 param->s_raid_stride = strtoul(arg, &p, 0); 699 if (*p) { 700 fprintf(stderr, 701 _("Invalid stride parameter: %s\n"), 702 arg); 703 r_usage++; 704 continue; 705 } 706 } else if (strcmp(token, "stripe-width") == 0 || 707 strcmp(token, "stripe_width") == 0) { 708 if (!arg) { 709 r_usage++; 710 badopt = token; 711 continue; 712 } 713 param->s_raid_stripe_width = strtoul(arg, &p, 0); 714 if (*p) { 715 fprintf(stderr, 716 _("Invalid stripe-width parameter: %s\n"), 717 arg); 718 r_usage++; 719 continue; 720 } 721 } else if (!strcmp(token, "resize")) { 722 blk64_t resize; 723 unsigned long bpg, rsv_groups; 724 unsigned long group_desc_count, desc_blocks; 725 unsigned int gdpb, blocksize; 726 int rsv_gdb; 727 728 if (!arg) { 729 r_usage++; 730 badopt = token; 731 continue; 732 } 733 734 resize = parse_num_blocks2(arg, 735 param->s_log_block_size); 736 737 if (resize == 0) { 738 fprintf(stderr, 739 _("Invalid resize parameter: %s\n"), 740 arg); 741 r_usage++; 742 continue; 743 } 744 if (resize <= ext2fs_blocks_count(param)) { 745 fprintf(stderr, 746 _("The resize maximum must be greater " 747 "than the filesystem size.\n")); 748 r_usage++; 749 continue; 750 } 751 752 blocksize = EXT2_BLOCK_SIZE(param); 753 bpg = param->s_blocks_per_group; 754 if (!bpg) 755 bpg = blocksize * 8; 756 gdpb = EXT2_DESC_PER_BLOCK(param); 757 group_desc_count = (__u32) ext2fs_div64_ceil( 758 ext2fs_blocks_count(param), bpg); 759 desc_blocks = (group_desc_count + 760 gdpb - 1) / gdpb; 761 rsv_groups = ext2fs_div64_ceil(resize, bpg); 762 rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) - 763 desc_blocks; 764 if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param)) 765 rsv_gdb = EXT2_ADDR_PER_BLOCK(param); 766 767 if (rsv_gdb > 0) { 768 if (param->s_rev_level == EXT2_GOOD_OLD_REV) { 769 fprintf(stderr, 770 _("On-line resizing not supported with revision 0 filesystems\n")); 771 free(buf); 772 exit(1); 773 } 774 param->s_feature_compat |= 775 EXT2_FEATURE_COMPAT_RESIZE_INODE; 776 777 param->s_reserved_gdt_blocks = rsv_gdb; 778 } 779 } else if (!strcmp(token, "test_fs")) { 780 param->s_flags |= EXT2_FLAGS_TEST_FILESYS; 781 } else if (!strcmp(token, "lazy_itable_init")) { 782 if (arg) 783 lazy_itable_init = strtoul(arg, &p, 0); 784 else 785 lazy_itable_init = 1; 786 } else if (!strcmp(token, "lazy_journal_init")) { 787 if (arg) 788 journal_flags |= strtoul(arg, &p, 0) ? 789 EXT2_MKJOURNAL_LAZYINIT : 0; 790 else 791 journal_flags |= EXT2_MKJOURNAL_LAZYINIT; 792 } else if (!strcmp(token, "discard")) { 793 discard = 1; 794 } else if (!strcmp(token, "nodiscard")) { 795 discard = 0; 796 } else if (!strcmp(token, "quotatype")) { 797 if (!arg) { 798 r_usage++; 799 badopt = token; 800 continue; 801 } 802 if (!strncmp(arg, "usr", 3)) { 803 quotatype = 0; 804 } else if (!strncmp(arg, "grp", 3)) { 805 quotatype = 1; 806 } else { 807 fprintf(stderr, 808 _("Invalid quotatype parameter: %s\n"), 809 arg); 810 r_usage++; 811 continue; 812 } 813 } else { 814 r_usage++; 815 badopt = token; 816 } 817 } 818 if (r_usage) { 819 fprintf(stderr, _("\nBad option(s) specified: %s\n\n" 820 "Extended options are separated by commas, " 821 "and may take an argument which\n" 822 "\tis set off by an equals ('=') sign.\n\n" 823 "Valid extended options are:\n" 824 "\tstride=<RAID per-disk data chunk in blocks>\n" 825 "\tstripe-width=<RAID stride * data disks in blocks>\n" 826 "\tresize=<resize maximum size in blocks>\n" 827 "\tlazy_itable_init=<0 to disable, 1 to enable>\n" 828 "\tlazy_journal_init=<0 to disable, 1 to enable>\n" 829 "\ttest_fs\n" 830 "\tdiscard\n" 831 "\tnodiscard\n" 832 "\tquotatype=<usr OR grp>\n\n"), 833 badopt ? badopt : ""); 834 free(buf); 835 exit(1); 836 } 837 if (param->s_raid_stride && 838 (param->s_raid_stripe_width % param->s_raid_stride) != 0) 839 fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even " 840 "multiple of stride %u.\n\n"), 841 param->s_raid_stripe_width, param->s_raid_stride); 842 843 free(buf); 844} 845 846static __u32 ok_features[3] = { 847 /* Compat */ 848 EXT3_FEATURE_COMPAT_HAS_JOURNAL | 849 EXT2_FEATURE_COMPAT_RESIZE_INODE | 850 EXT2_FEATURE_COMPAT_DIR_INDEX | 851 EXT2_FEATURE_COMPAT_EXT_ATTR, 852 /* Incompat */ 853 EXT2_FEATURE_INCOMPAT_FILETYPE| 854 EXT3_FEATURE_INCOMPAT_EXTENTS| 855 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV| 856 EXT2_FEATURE_INCOMPAT_META_BG| 857 EXT4_FEATURE_INCOMPAT_FLEX_BG| 858 EXT4_FEATURE_INCOMPAT_MMP | 859 EXT4_FEATURE_INCOMPAT_64BIT, 860 /* R/O compat */ 861 EXT2_FEATURE_RO_COMPAT_LARGE_FILE| 862 EXT4_FEATURE_RO_COMPAT_HUGE_FILE| 863 EXT4_FEATURE_RO_COMPAT_DIR_NLINK| 864 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE| 865 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER| 866 EXT4_FEATURE_RO_COMPAT_GDT_CSUM| 867 EXT4_FEATURE_RO_COMPAT_BIGALLOC| 868#ifdef CONFIG_QUOTA 869 EXT4_FEATURE_RO_COMPAT_QUOTA| 870#endif 871 0 872}; 873 874 875static void syntax_err_report(const char *filename, long err, int line_num) 876{ 877 fprintf(stderr, 878 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"), 879 filename, line_num, error_message(err)); 880 exit(1); 881} 882 883static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 }; 884 885static void edit_feature(const char *str, __u32 *compat_array) 886{ 887 if (!str) 888 return; 889 890 if (e2p_edit_feature(str, compat_array, ok_features)) { 891 fprintf(stderr, _("Invalid filesystem option set: %s\n"), 892 str); 893 exit(1); 894 } 895} 896 897static void edit_mntopts(const char *str, __u32 *mntopts) 898{ 899 if (!str) 900 return; 901 902 if (e2p_edit_mntopts(str, mntopts, ~0)) { 903 fprintf(stderr, _("Invalid mount option set: %s\n"), 904 str); 905 exit(1); 906 } 907} 908 909struct str_list { 910 char **list; 911 int num; 912 int max; 913}; 914 915static errcode_t init_list(struct str_list *sl) 916{ 917 sl->num = 0; 918 sl->max = 0; 919 sl->list = malloc((sl->max+1) * sizeof(char *)); 920 if (!sl->list) 921 return ENOMEM; 922 sl->list[0] = 0; 923 return 0; 924} 925 926static errcode_t push_string(struct str_list *sl, const char *str) 927{ 928 char **new_list; 929 930 if (sl->num >= sl->max) { 931 sl->max += 2; 932 new_list = realloc(sl->list, (sl->max+1) * sizeof(char *)); 933 if (!new_list) 934 return ENOMEM; 935 sl->list = new_list; 936 } 937 sl->list[sl->num] = malloc(strlen(str)+1); 938 if (sl->list[sl->num] == 0) 939 return ENOMEM; 940 strcpy(sl->list[sl->num], str); 941 sl->num++; 942 sl->list[sl->num] = 0; 943 return 0; 944} 945 946static void print_str_list(char **list) 947{ 948 char **cpp; 949 950 for (cpp = list; *cpp; cpp++) { 951 printf("'%s'", *cpp); 952 if (cpp[1]) 953 fputs(", ", stdout); 954 } 955 fputc('\n', stdout); 956} 957 958/* 959 * Return TRUE if the profile has the given subsection 960 */ 961static int profile_has_subsection(profile_t profile, const char *section, 962 const char *subsection) 963{ 964 void *state; 965 const char *names[4]; 966 char *name; 967 int ret = 0; 968 969 names[0] = section; 970 names[1] = subsection; 971 names[2] = 0; 972 973 if (profile_iterator_create(profile, names, 974 PROFILE_ITER_LIST_SECTION | 975 PROFILE_ITER_RELATIONS_ONLY, &state)) 976 return 0; 977 978 if ((profile_iterator(&state, &name, 0) == 0) && name) { 979 free(name); 980 ret = 1; 981 } 982 983 profile_iterator_free(&state); 984 return ret; 985} 986 987static char **parse_fs_type(const char *fs_type, 988 const char *usage_types, 989 struct ext2_super_block *fs_param, 990 blk64_t fs_blocks_count, 991 char *progname) 992{ 993 const char *ext_type = 0; 994 char *parse_str; 995 char *profile_type = 0; 996 char *cp, *t; 997 const char *size_type; 998 struct str_list list; 999 unsigned long long meg; 1000 int is_hurd = 0; 1001 1002 if (init_list(&list)) 1003 return 0; 1004 1005 if (creator_os && (!strcasecmp(creator_os, "GNU") || 1006 !strcasecmp(creator_os, "hurd"))) 1007 is_hurd = 1; 1008 1009 if (fs_type) 1010 ext_type = fs_type; 1011 else if (is_hurd) 1012 ext_type = "ext2"; 1013 else if (!strcmp(program_name, "mke3fs")) 1014 ext_type = "ext3"; 1015 else if (!strcmp(program_name, "mke4fs")) 1016 ext_type = "ext4"; 1017 else if (progname) { 1018 ext_type = strrchr(progname, '/'); 1019 if (ext_type) 1020 ext_type++; 1021 else 1022 ext_type = progname; 1023 1024 if (!strncmp(ext_type, "mkfs.", 5)) { 1025 ext_type += 5; 1026 if (ext_type[0] == 0) 1027 ext_type = 0; 1028 } else 1029 ext_type = 0; 1030 } 1031 1032 if (!ext_type) { 1033 profile_get_string(profile, "defaults", "fs_type", 0, 1034 "ext2", &profile_type); 1035 ext_type = profile_type; 1036 if (!strcmp(ext_type, "ext2") && (journal_size != 0)) 1037 ext_type = "ext3"; 1038 } 1039 1040 1041 if (!profile_has_subsection(profile, "fs_types", ext_type) && 1042 strcmp(ext_type, "ext2")) { 1043 printf(_("\nYour mke2fs.conf file does not define the " 1044 "%s filesystem type.\n"), ext_type); 1045 if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") || 1046 !strcmp(ext_type, "ext4dev")) { 1047 printf(_("You probably need to install an updated " 1048 "mke2fs.conf file.\n\n")); 1049 } 1050 if (!force) { 1051 printf(_("Aborting...\n")); 1052 exit(1); 1053 } 1054 } 1055 1056 meg = (1024 * 1024) / EXT2_BLOCK_SIZE(fs_param); 1057 if (fs_blocks_count < 3 * meg) 1058 size_type = "floppy"; 1059 else if (fs_blocks_count < 512 * meg) 1060 size_type = "small"; 1061 else if (fs_blocks_count < 4 * 1024 * 1024 * meg) 1062 size_type = "default"; 1063 else if (fs_blocks_count < 16 * 1024 * 1024 * meg) 1064 size_type = "big"; 1065 else 1066 size_type = "huge"; 1067 1068 if (!usage_types) 1069 usage_types = size_type; 1070 1071 parse_str = malloc(strlen(usage_types)+1); 1072 if (!parse_str) { 1073 free(list.list); 1074 return 0; 1075 } 1076 strcpy(parse_str, usage_types); 1077 1078 if (ext_type) 1079 push_string(&list, ext_type); 1080 cp = parse_str; 1081 while (1) { 1082 t = strchr(cp, ','); 1083 if (t) 1084 *t = '\0'; 1085 1086 if (*cp) { 1087 if (profile_has_subsection(profile, "fs_types", cp)) 1088 push_string(&list, cp); 1089 else if (strcmp(cp, "default") != 0) 1090 fprintf(stderr, 1091 _("\nWarning: the fs_type %s is not " 1092 "defined in mke2fs.conf\n\n"), 1093 cp); 1094 } 1095 if (t) 1096 cp = t+1; 1097 else { 1098 cp = ""; 1099 break; 1100 } 1101 } 1102 free(parse_str); 1103 free(profile_type); 1104 if (is_hurd) 1105 push_string(&list, "hurd"); 1106 return (list.list); 1107} 1108 1109static char *get_string_from_profile(char **fs_types, const char *opt, 1110 const char *def_val) 1111{ 1112 char *ret = 0; 1113 int i; 1114 1115 for (i=0; fs_types[i]; i++); 1116 for (i-=1; i >=0 ; i--) { 1117 profile_get_string(profile, "fs_types", fs_types[i], 1118 opt, 0, &ret); 1119 if (ret) 1120 return ret; 1121 } 1122 profile_get_string(profile, "defaults", opt, 0, def_val, &ret); 1123 return (ret); 1124} 1125 1126static int get_int_from_profile(char **fs_types, const char *opt, int def_val) 1127{ 1128 int ret; 1129 char **cpp; 1130 1131 profile_get_integer(profile, "defaults", opt, 0, def_val, &ret); 1132 for (cpp = fs_types; *cpp; cpp++) 1133 profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret); 1134 return ret; 1135} 1136 1137static double get_double_from_profile(char **fs_types, const char *opt, 1138 double def_val) 1139{ 1140 double ret; 1141 char **cpp; 1142 1143 profile_get_double(profile, "defaults", opt, 0, def_val, &ret); 1144 for (cpp = fs_types; *cpp; cpp++) 1145 profile_get_double(profile, "fs_types", *cpp, opt, ret, &ret); 1146 return ret; 1147} 1148 1149static int get_bool_from_profile(char **fs_types, const char *opt, int def_val) 1150{ 1151 int ret; 1152 char **cpp; 1153 1154 profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret); 1155 for (cpp = fs_types; *cpp; cpp++) 1156 profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret); 1157 return ret; 1158} 1159 1160extern const char *mke2fs_default_profile; 1161static const char *default_files[] = { "<default>", 0 }; 1162 1163#ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY 1164/* 1165 * Sets the geometry of a device (stripe/stride), and returns the 1166 * device's alignment offset, if any, or a negative error. 1167 */ 1168static int get_device_geometry(const char *file, 1169 struct ext2_super_block *fs_param, 1170 int psector_size) 1171{ 1172 int rc = -1; 1173 int blocksize; 1174 blkid_probe pr; 1175 blkid_topology tp; 1176 unsigned long min_io; 1177 unsigned long opt_io; 1178 struct stat statbuf; 1179 1180 /* Nothing to do for a regular file */ 1181 if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode)) 1182 return 0; 1183 1184 pr = blkid_new_probe_from_filename(file); 1185 if (!pr) 1186 goto out; 1187 1188 tp = blkid_probe_get_topology(pr); 1189 if (!tp) 1190 goto out; 1191 1192 min_io = blkid_topology_get_minimum_io_size(tp); 1193 opt_io = blkid_topology_get_optimal_io_size(tp); 1194 blocksize = EXT2_BLOCK_SIZE(fs_param); 1195 if ((min_io == 0) && (psector_size > blocksize)) 1196 min_io = psector_size; 1197 if ((opt_io == 0) && min_io) 1198 opt_io = min_io; 1199 if ((opt_io == 0) && (psector_size > blocksize)) 1200 opt_io = psector_size; 1201 1202 /* setting stripe/stride to blocksize is pointless */ 1203 if (min_io > blocksize) 1204 fs_param->s_raid_stride = min_io / blocksize; 1205 if (opt_io > blocksize) 1206 fs_param->s_raid_stripe_width = opt_io / blocksize; 1207 1208 rc = blkid_topology_get_alignment_offset(tp); 1209out: 1210 blkid_free_probe(pr); 1211 return rc; 1212} 1213#endif 1214 1215static void PRS(int argc, char *argv[]) 1216{ 1217 int b, c; 1218 int cluster_size = 0; 1219 char *tmp, **cpp; 1220 int blocksize = 0; 1221 int inode_ratio = 0; 1222 int inode_size = 0; 1223 unsigned long flex_bg_size = 0; 1224 double reserved_ratio = -1.0; 1225 int lsector_size = 0, psector_size = 0; 1226 int show_version_only = 0; 1227 unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */ 1228 errcode_t retval; 1229 char * oldpath = getenv("PATH"); 1230 char * extended_opts = 0; 1231 char * fs_type = 0; 1232 char * usage_types = 0; 1233 blk64_t dev_size; 1234 blk64_t fs_blocks_count = 0; 1235#ifdef __linux__ 1236 struct utsname ut; 1237#endif 1238 long sysval; 1239 int s_opt = -1, r_opt = -1; 1240 char *fs_features = 0; 1241 int use_bsize; 1242 char *newpath; 1243 int pathlen = sizeof(PATH_SET) + 1; 1244 1245 if (oldpath) 1246 pathlen += strlen(oldpath); 1247 newpath = malloc(pathlen); 1248 if (!newpath) { 1249 fprintf(stderr, _("Couldn't allocate memory for new PATH.\n")); 1250 exit(1); 1251 } 1252 strcpy(newpath, PATH_SET); 1253 1254 /* Update our PATH to include /sbin */ 1255 if (oldpath) { 1256 strcat (newpath, ":"); 1257 strcat (newpath, oldpath); 1258 } 1259 putenv (newpath); 1260 1261 tmp = getenv("MKE2FS_SYNC"); 1262 if (tmp) 1263 sync_kludge = atoi(tmp); 1264 1265 /* Determine the system page size if possible */ 1266#ifdef HAVE_SYSCONF 1267#if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE)) 1268#define _SC_PAGESIZE _SC_PAGE_SIZE 1269#endif 1270#ifdef _SC_PAGESIZE 1271 sysval = sysconf(_SC_PAGESIZE); 1272 if (sysval > 0) 1273 sys_page_size = sysval; 1274#endif /* _SC_PAGESIZE */ 1275#endif /* HAVE_SYSCONF */ 1276 1277 if ((tmp = getenv("MKE2FS_CONFIG")) != NULL) 1278 config_fn[0] = tmp; 1279 profile_set_syntax_err_cb(syntax_err_report); 1280 retval = profile_init(config_fn, &profile); 1281 if (retval == ENOENT) { 1282 retval = profile_init(default_files, &profile); 1283 if (retval) 1284 goto profile_error; 1285 retval = profile_set_default(profile, mke2fs_default_profile); 1286 if (retval) 1287 goto profile_error; 1288 } else if (retval) { 1289profile_error: 1290 fprintf(stderr, _("Couldn't init profile successfully" 1291 " (error: %ld).\n"), retval); 1292 exit(1); 1293 } 1294 1295 setbuf(stdout, NULL); 1296 setbuf(stderr, NULL); 1297 add_error_table(&et_ext2_error_table); 1298 add_error_table(&et_prof_error_table); 1299 memset(&fs_param, 0, sizeof(struct ext2_super_block)); 1300 fs_param.s_rev_level = 1; /* Create revision 1 filesystems now */ 1301 1302#ifdef __linux__ 1303 if (uname(&ut)) { 1304 perror("uname"); 1305 exit(1); 1306 } 1307 linux_version_code = parse_version_number(ut.release); 1308 if (linux_version_code && linux_version_code < (2*65536 + 2*256)) 1309 fs_param.s_rev_level = 0; 1310#endif 1311 1312 if (argc && *argv) { 1313 program_name = get_progname(*argv); 1314 1315 /* If called as mkfs.ext3, create a journal inode */ 1316 if (!strcmp(program_name, "mkfs.ext3") || 1317 !strcmp(program_name, "mke3fs")) 1318 journal_size = -1; 1319 } 1320 1321 while ((c = getopt (argc, argv, 1322 "b:cg:i:jl:m:no:qr:s:t:vC:DE:FG:I:J:KL:M:N:O:R:ST:U:V")) != EOF) { 1323 switch (c) { 1324 case 'b': 1325 blocksize = strtol(optarg, &tmp, 0); 1326 b = (blocksize > 0) ? blocksize : -blocksize; 1327 if (b < EXT2_MIN_BLOCK_SIZE || 1328 b > EXT2_MAX_BLOCK_SIZE || *tmp) { 1329 com_err(program_name, 0, 1330 _("invalid block size - %s"), optarg); 1331 exit(1); 1332 } 1333 if (blocksize > 4096) 1334 fprintf(stderr, _("Warning: blocksize %d not " 1335 "usable on most systems.\n"), 1336 blocksize); 1337 if (blocksize > 0) 1338 fs_param.s_log_block_size = 1339 int_log2(blocksize >> 1340 EXT2_MIN_BLOCK_LOG_SIZE); 1341 break; 1342 case 'c': /* Check for bad blocks */ 1343 cflag++; 1344 break; 1345 case 'C': 1346 cluster_size = strtoul(optarg, &tmp, 0); 1347 if (cluster_size < EXT2_MIN_CLUSTER_SIZE || 1348 cluster_size > EXT2_MAX_CLUSTER_SIZE || *tmp) { 1349 com_err(program_name, 0, 1350 _("invalid cluster size - %s"), 1351 optarg); 1352 exit(1); 1353 } 1354 break; 1355 case 'D': 1356 direct_io = 1; 1357 break; 1358 case 'g': 1359 fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0); 1360 if (*tmp) { 1361 com_err(program_name, 0, 1362 _("Illegal number for blocks per group")); 1363 exit(1); 1364 } 1365 if ((fs_param.s_blocks_per_group % 8) != 0) { 1366 com_err(program_name, 0, 1367 _("blocks per group must be multiple of 8")); 1368 exit(1); 1369 } 1370 break; 1371 case 'G': 1372 flex_bg_size = strtoul(optarg, &tmp, 0); 1373 if (*tmp) { 1374 com_err(program_name, 0, 1375 _("Illegal number for flex_bg size")); 1376 exit(1); 1377 } 1378 if (flex_bg_size < 1 || 1379 (flex_bg_size & (flex_bg_size-1)) != 0) { 1380 com_err(program_name, 0, 1381 _("flex_bg size must be a power of 2")); 1382 exit(1); 1383 } 1384 break; 1385 case 'i': 1386 inode_ratio = strtoul(optarg, &tmp, 0); 1387 if (inode_ratio < EXT2_MIN_BLOCK_SIZE || 1388 inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024 || 1389 *tmp) { 1390 com_err(program_name, 0, 1391 _("invalid inode ratio %s (min %d/max %d)"), 1392 optarg, EXT2_MIN_BLOCK_SIZE, 1393 EXT2_MAX_BLOCK_SIZE * 1024); 1394 exit(1); 1395 } 1396 break; 1397 case 'J': 1398 parse_journal_opts(optarg); 1399 break; 1400 case 'K': 1401 fprintf(stderr, _("Warning: -K option is deprecated and " 1402 "should not be used anymore. Use " 1403 "\'-E nodiscard\' extended option " 1404 "instead!\n")); 1405 discard = 0; 1406 break; 1407 case 'j': 1408 if (!journal_size) 1409 journal_size = -1; 1410 break; 1411 case 'l': 1412 bad_blocks_filename = malloc(strlen(optarg)+1); 1413 if (!bad_blocks_filename) { 1414 com_err(program_name, ENOMEM, 1415 _("in malloc for bad_blocks_filename")); 1416 exit(1); 1417 } 1418 strcpy(bad_blocks_filename, optarg); 1419 break; 1420 case 'm': 1421 reserved_ratio = strtod(optarg, &tmp); 1422 if ( *tmp || reserved_ratio > 50 || 1423 reserved_ratio < 0) { 1424 com_err(program_name, 0, 1425 _("invalid reserved blocks percent - %s"), 1426 optarg); 1427 exit(1); 1428 } 1429 break; 1430 case 'n': 1431 noaction++; 1432 break; 1433 case 'o': 1434 creator_os = optarg; 1435 break; 1436 case 'q': 1437 quiet = 1; 1438 break; 1439 case 'r': 1440 r_opt = strtoul(optarg, &tmp, 0); 1441 if (*tmp) { 1442 com_err(program_name, 0, 1443 _("bad revision level - %s"), optarg); 1444 exit(1); 1445 } 1446 fs_param.s_rev_level = r_opt; 1447 break; 1448 case 's': /* deprecated */ 1449 s_opt = atoi(optarg); 1450 break; 1451 case 'I': 1452 inode_size = strtoul(optarg, &tmp, 0); 1453 if (*tmp) { 1454 com_err(program_name, 0, 1455 _("invalid inode size - %s"), optarg); 1456 exit(1); 1457 } 1458 break; 1459 case 'v': 1460 verbose = 1; 1461 break; 1462 case 'F': 1463 force++; 1464 break; 1465 case 'L': 1466 volume_label = optarg; 1467 break; 1468 case 'M': 1469 mount_dir = optarg; 1470 break; 1471 case 'N': 1472 num_inodes = strtoul(optarg, &tmp, 0); 1473 if (*tmp) { 1474 com_err(program_name, 0, 1475 _("bad num inodes - %s"), optarg); 1476 exit(1); 1477 } 1478 break; 1479 case 'O': 1480 fs_features = optarg; 1481 break; 1482 case 'E': 1483 case 'R': 1484 extended_opts = optarg; 1485 break; 1486 case 'S': 1487 super_only = 1; 1488 break; 1489 case 't': 1490 if (fs_type) { 1491 com_err(program_name, 0, 1492 _("The -t option may only be used once")); 1493 exit(1); 1494 } 1495 fs_type = strdup(optarg); 1496 break; 1497 case 'T': 1498 if (usage_types) { 1499 com_err(program_name, 0, 1500 _("The -T option may only be used once")); 1501 exit(1); 1502 } 1503 usage_types = strdup(optarg); 1504 break; 1505 case 'U': 1506 fs_uuid = optarg; 1507 break; 1508 case 'V': 1509 /* Print version number and exit */ 1510 show_version_only++; 1511 break; 1512 default: 1513 usage(); 1514 } 1515 } 1516 if ((optind == argc) && !show_version_only) 1517 usage(); 1518 device_name = argv[optind++]; 1519 1520 if (!quiet || show_version_only) 1521 fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION, 1522 E2FSPROGS_DATE); 1523 1524 if (show_version_only) { 1525 fprintf(stderr, _("\tUsing %s\n"), 1526 error_message(EXT2_ET_BASE)); 1527 exit(0); 1528 } 1529 1530 /* 1531 * If there's no blocksize specified and there is a journal 1532 * device, use it to figure out the blocksize 1533 */ 1534 if (blocksize <= 0 && journal_device) { 1535 ext2_filsys jfs; 1536 io_manager io_ptr; 1537 1538#ifdef CONFIG_TESTIO_DEBUG 1539 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) { 1540 io_ptr = test_io_manager; 1541 test_io_backing_manager = unix_io_manager; 1542 } else 1543#endif 1544 io_ptr = unix_io_manager; 1545 retval = ext2fs_open(journal_device, 1546 EXT2_FLAG_JOURNAL_DEV_OK, 0, 1547 0, io_ptr, &jfs); 1548 if (retval) { 1549 com_err(program_name, retval, 1550 _("while trying to open journal device %s\n"), 1551 journal_device); 1552 exit(1); 1553 } 1554 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) { 1555 com_err(program_name, 0, 1556 _("Journal dev blocksize (%d) smaller than " 1557 "minimum blocksize %d\n"), jfs->blocksize, 1558 -blocksize); 1559 exit(1); 1560 } 1561 blocksize = jfs->blocksize; 1562 printf(_("Using journal device's blocksize: %d\n"), blocksize); 1563 fs_param.s_log_block_size = 1564 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE); 1565 ext2fs_close(jfs); 1566 } 1567 1568 if (optind < argc) { 1569 fs_blocks_count = parse_num_blocks2(argv[optind++], 1570 fs_param.s_log_block_size); 1571 if (!fs_blocks_count) { 1572 com_err(program_name, 0, 1573 _("invalid blocks '%s' on device '%s'"), 1574 argv[optind - 1], device_name); 1575 exit(1); 1576 } 1577 } 1578 if (optind < argc) 1579 usage(); 1580 1581 if (!force) 1582 check_plausibility(device_name); 1583 check_mount(device_name, force, _("filesystem")); 1584 1585 /* Determine the size of the device (if possible) */ 1586 if (noaction && fs_blocks_count) { 1587 dev_size = fs_blocks_count; 1588 retval = 0; 1589 } else 1590 retval = ext2fs_get_device_size2(device_name, 1591 EXT2_BLOCK_SIZE(&fs_param), 1592 &dev_size); 1593 1594 if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) { 1595 com_err(program_name, retval, 1596 _("while trying to determine filesystem size")); 1597 exit(1); 1598 } 1599 if (!fs_blocks_count) { 1600 if (retval == EXT2_ET_UNIMPLEMENTED) { 1601 com_err(program_name, 0, 1602 _("Couldn't determine device size; you " 1603 "must specify\nthe size of the " 1604 "filesystem\n")); 1605 exit(1); 1606 } else { 1607 if (dev_size == 0) { 1608 com_err(program_name, 0, 1609 _("Device size reported to be zero. " 1610 "Invalid partition specified, or\n\t" 1611 "partition table wasn't reread " 1612 "after running fdisk, due to\n\t" 1613 "a modified partition being busy " 1614 "and in use. You may need to reboot\n\t" 1615 "to re-read your partition table.\n" 1616 )); 1617 exit(1); 1618 } 1619 fs_blocks_count = dev_size; 1620 if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param)) 1621 fs_blocks_count &= ~((blk64_t) ((sys_page_size / 1622 EXT2_BLOCK_SIZE(&fs_param))-1)); 1623 } 1624 } else if (!force && (fs_blocks_count > dev_size)) { 1625 com_err(program_name, 0, 1626 _("Filesystem larger than apparent device size.")); 1627 proceed_question(); 1628 } 1629 1630 if (!fs_type) 1631 profile_get_string(profile, "devices", device_name, 1632 "fs_type", 0, &fs_type); 1633 if (!usage_types) 1634 profile_get_string(profile, "devices", device_name, 1635 "usage_types", 0, &usage_types); 1636 1637 /* 1638 * We have the file system (or device) size, so we can now 1639 * determine the appropriate file system types so the fs can 1640 * be appropriately configured. 1641 */ 1642 fs_types = parse_fs_type(fs_type, usage_types, &fs_param, 1643 fs_blocks_count ? fs_blocks_count : dev_size, 1644 argv[0]); 1645 if (!fs_types) { 1646 fprintf(stderr, _("Failed to parse fs types list\n")); 1647 exit(1); 1648 } 1649 1650 /* Figure out what features should be enabled */ 1651 1652 tmp = NULL; 1653 if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) { 1654 tmp = get_string_from_profile(fs_types, "base_features", 1655 "sparse_super,filetype,resize_inode,dir_index"); 1656 edit_feature(tmp, &fs_param.s_feature_compat); 1657 free(tmp); 1658 1659 /* And which mount options as well */ 1660 tmp = get_string_from_profile(fs_types, "default_mntopts", 1661 "acl,user_xattr"); 1662 edit_mntopts(tmp, &fs_param.s_default_mount_opts); 1663 if (tmp) 1664 free(tmp); 1665 1666 for (cpp = fs_types; *cpp; cpp++) { 1667 tmp = NULL; 1668 profile_get_string(profile, "fs_types", *cpp, 1669 "features", "", &tmp); 1670 if (tmp && *tmp) 1671 edit_feature(tmp, &fs_param.s_feature_compat); 1672 if (tmp) 1673 free(tmp); 1674 } 1675 tmp = get_string_from_profile(fs_types, "default_features", 1676 ""); 1677 } 1678 edit_feature(fs_features ? fs_features : tmp, 1679 &fs_param.s_feature_compat); 1680 if (tmp) 1681 free(tmp); 1682 1683 /* 1684 * We now need to do a sanity check of fs_blocks_count for 1685 * 32-bit vs 64-bit block number support. 1686 */ 1687 if ((fs_blocks_count > MAX_32_NUM) && (blocksize == 0)) { 1688 fs_blocks_count /= 4; /* Try using a 4k blocksize */ 1689 blocksize = 4096; 1690 fs_param.s_log_block_size = 2; 1691 } 1692 if ((fs_blocks_count > MAX_32_NUM) && 1693 !(fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT) && 1694 get_bool_from_profile(fs_types, "auto_64-bit_support", 0)) { 1695 fs_param.s_feature_incompat |= EXT4_FEATURE_INCOMPAT_64BIT; 1696 fs_param.s_feature_compat &= ~EXT2_FEATURE_COMPAT_RESIZE_INODE; 1697 } 1698 if ((fs_blocks_count > MAX_32_NUM) && 1699 !(fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT)) { 1700 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s " 1701 "too big to be expressed\n\t" 1702 "in 32 bits using a blocksize of %d.\n"), 1703 program_name, fs_blocks_count, device_name, 1704 EXT2_BLOCK_SIZE(&fs_param)); 1705 exit(1); 1706 } 1707 1708 ext2fs_blocks_count_set(&fs_param, fs_blocks_count); 1709 1710 if (fs_param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) { 1711 fs_types[0] = strdup("journal"); 1712 fs_types[1] = 0; 1713 } 1714 1715 if (verbose) { 1716 fputs(_("fs_types for mke2fs.conf resolution: "), stdout); 1717 print_str_list(fs_types); 1718 } 1719 1720 if (r_opt == EXT2_GOOD_OLD_REV && 1721 (fs_param.s_feature_compat || fs_param.s_feature_incompat || 1722 fs_param.s_feature_ro_compat)) { 1723 fprintf(stderr, _("Filesystem features not supported " 1724 "with revision 0 filesystems\n")); 1725 exit(1); 1726 } 1727 1728 if (s_opt > 0) { 1729 if (r_opt == EXT2_GOOD_OLD_REV) { 1730 fprintf(stderr, _("Sparse superblocks not supported " 1731 "with revision 0 filesystems\n")); 1732 exit(1); 1733 } 1734 fs_param.s_feature_ro_compat |= 1735 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER; 1736 } else if (s_opt == 0) 1737 fs_param.s_feature_ro_compat &= 1738 ~EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER; 1739 1740 if (journal_size != 0) { 1741 if (r_opt == EXT2_GOOD_OLD_REV) { 1742 fprintf(stderr, _("Journals not supported " 1743 "with revision 0 filesystems\n")); 1744 exit(1); 1745 } 1746 fs_param.s_feature_compat |= 1747 EXT3_FEATURE_COMPAT_HAS_JOURNAL; 1748 } 1749 1750 /* Get reserved_ratio from profile if not specified on cmd line. */ 1751 if (reserved_ratio < 0.0) { 1752 reserved_ratio = get_double_from_profile( 1753 fs_types, "reserved_ratio", 5.0); 1754 if (reserved_ratio > 50 || reserved_ratio < 0) { 1755 com_err(program_name, 0, 1756 _("invalid reserved blocks percent - %lf"), 1757 reserved_ratio); 1758 exit(1); 1759 } 1760 } 1761 1762 if (fs_param.s_feature_incompat & 1763 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) { 1764 reserved_ratio = 0; 1765 fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV; 1766 fs_param.s_feature_compat = 0; 1767 fs_param.s_feature_ro_compat = 0; 1768 } 1769 1770 if ((fs_param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) && 1771 (fs_param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE)) { 1772 fprintf(stderr, _("The resize_inode and meta_bg features " 1773 "are not compatible.\n" 1774 "They can not be both enabled " 1775 "simultaneously.\n")); 1776 exit(1); 1777 } 1778 1779 /* Set first meta blockgroup via an environment variable */ 1780 /* (this is mostly for debugging purposes) */ 1781 if ((fs_param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) && 1782 ((tmp = getenv("MKE2FS_FIRST_META_BG")))) 1783 fs_param.s_first_meta_bg = atoi(tmp); 1784 1785 /* Get the hardware sector sizes, if available */ 1786 retval = ext2fs_get_device_sectsize(device_name, &lsector_size); 1787 if (retval) { 1788 com_err(program_name, retval, 1789 _("while trying to determine hardware sector size")); 1790 exit(1); 1791 } 1792 retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size); 1793 if (retval) { 1794 com_err(program_name, retval, 1795 _("while trying to determine physical sector size")); 1796 exit(1); 1797 } 1798 1799 if ((tmp = getenv("MKE2FS_DEVICE_SECTSIZE")) != NULL) 1800 lsector_size = atoi(tmp); 1801 if ((tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE")) != NULL) 1802 psector_size = atoi(tmp); 1803 1804 /* Older kernels may not have physical/logical distinction */ 1805 if (!psector_size) 1806 psector_size = lsector_size; 1807 1808 if (blocksize <= 0) { 1809 use_bsize = get_int_from_profile(fs_types, "blocksize", 4096); 1810 1811 if (use_bsize == -1) { 1812 use_bsize = sys_page_size; 1813 if ((linux_version_code < (2*65536 + 6*256)) && 1814 (use_bsize > 4096)) 1815 use_bsize = 4096; 1816 } 1817 if (lsector_size && use_bsize < lsector_size) 1818 use_bsize = lsector_size; 1819 if ((blocksize < 0) && (use_bsize < (-blocksize))) 1820 use_bsize = -blocksize; 1821 blocksize = use_bsize; 1822 ext2fs_blocks_count_set(&fs_param, 1823 ext2fs_blocks_count(&fs_param) / 1824 (blocksize / 1024)); 1825 } else { 1826 if (blocksize < lsector_size) { /* Impossible */ 1827 com_err(program_name, EINVAL, 1828 _("while setting blocksize; too small " 1829 "for device\n")); 1830 exit(1); 1831 } else if ((blocksize < psector_size) && 1832 (psector_size <= sys_page_size)) { /* Suboptimal */ 1833 fprintf(stderr, _("Warning: specified blocksize %d is " 1834 "less than device physical sectorsize %d\n"), 1835 blocksize, psector_size); 1836 } 1837 } 1838 1839 fs_param.s_log_block_size = 1840 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE); 1841 if (fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_BIGALLOC) { 1842 if (!cluster_size) 1843 cluster_size = get_int_from_profile(fs_types, 1844 "cluster_size", 1845 blocksize*16); 1846 fs_param.s_log_cluster_size = 1847 int_log2(cluster_size >> EXT2_MIN_CLUSTER_LOG_SIZE); 1848 } else 1849 fs_param.s_log_cluster_size = fs_param.s_log_block_size; 1850 1851 if (inode_ratio == 0) { 1852 inode_ratio = get_int_from_profile(fs_types, "inode_ratio", 1853 8192); 1854 if (inode_ratio < blocksize) 1855 inode_ratio = blocksize; 1856 if (inode_ratio < EXT2_CLUSTER_SIZE(&fs_param)) 1857 inode_ratio = EXT2_CLUSTER_SIZE(&fs_param); 1858 } 1859 1860#ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY 1861 retval = get_device_geometry(device_name, &fs_param, psector_size); 1862 if (retval < 0) { 1863 fprintf(stderr, 1864 _("warning: Unable to get device geometry for %s\n"), 1865 device_name); 1866 } else if (retval) { 1867 printf(_("%s alignment is offset by %lu bytes.\n"), 1868 device_name, retval); 1869 printf(_("This may result in very poor performance, " 1870 "(re)-partitioning suggested.\n")); 1871 } 1872#endif 1873 1874 blocksize = EXT2_BLOCK_SIZE(&fs_param); 1875 1876 /* 1877 * Initialize s_desc_size so that the parse_extended_opts() 1878 * can correctly handle "-E resize=NNN" if the 64-bit option 1879 * is set. 1880 */ 1881 if (fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT) 1882 fs_param.s_desc_size = EXT2_MIN_DESC_SIZE_64BIT; 1883 1884 /* This check should happen beyond the last assignment to blocksize */ 1885 if (blocksize > sys_page_size) { 1886 if (!force) { 1887 com_err(program_name, 0, 1888 _("%d-byte blocks too big for system (max %d)"), 1889 blocksize, sys_page_size); 1890 proceed_question(); 1891 } 1892 fprintf(stderr, _("Warning: %d-byte blocks too big for system " 1893 "(max %d), forced to continue\n"), 1894 blocksize, sys_page_size); 1895 } 1896 1897 lazy_itable_init = 0; 1898 if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0) 1899 lazy_itable_init = 1; 1900 1901 lazy_itable_init = get_bool_from_profile(fs_types, 1902 "lazy_itable_init", 1903 lazy_itable_init); 1904 discard = get_bool_from_profile(fs_types, "discard" , discard); 1905 journal_flags |= get_bool_from_profile(fs_types, 1906 "lazy_journal_init", 0) ? 1907 EXT2_MKJOURNAL_LAZYINIT : 0; 1908 journal_flags |= EXT2_MKJOURNAL_NO_MNT_CHECK; 1909 1910 /* Get options from profile */ 1911 for (cpp = fs_types; *cpp; cpp++) { 1912 tmp = NULL; 1913 profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp); 1914 if (tmp && *tmp) 1915 parse_extended_opts(&fs_param, tmp); 1916 free(tmp); 1917 } 1918 1919 if (extended_opts) 1920 parse_extended_opts(&fs_param, extended_opts); 1921 1922 /* Since sparse_super is the default, we would only have a problem 1923 * here if it was explicitly disabled. 1924 */ 1925 if ((fs_param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE) && 1926 !(fs_param.s_feature_ro_compat&EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)) { 1927 com_err(program_name, 0, 1928 _("reserved online resize blocks not supported " 1929 "on non-sparse filesystem")); 1930 exit(1); 1931 } 1932 1933 if (fs_param.s_blocks_per_group) { 1934 if (fs_param.s_blocks_per_group < 256 || 1935 fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) { 1936 com_err(program_name, 0, 1937 _("blocks per group count out of range")); 1938 exit(1); 1939 } 1940 } 1941 1942 if (inode_size == 0) 1943 inode_size = get_int_from_profile(fs_types, "inode_size", 0); 1944 if (!flex_bg_size && (fs_param.s_feature_incompat & 1945 EXT4_FEATURE_INCOMPAT_FLEX_BG)) 1946 flex_bg_size = get_int_from_profile(fs_types, 1947 "flex_bg_size", 16); 1948 if (flex_bg_size) { 1949 if (!(fs_param.s_feature_incompat & 1950 EXT4_FEATURE_INCOMPAT_FLEX_BG)) { 1951 com_err(program_name, 0, 1952 _("Flex_bg feature not enabled, so " 1953 "flex_bg size may not be specified")); 1954 exit(1); 1955 } 1956 fs_param.s_log_groups_per_flex = int_log2(flex_bg_size); 1957 } 1958 1959 if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) { 1960 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE || 1961 inode_size > EXT2_BLOCK_SIZE(&fs_param) || 1962 inode_size & (inode_size - 1)) { 1963 com_err(program_name, 0, 1964 _("invalid inode size %d (min %d/max %d)"), 1965 inode_size, EXT2_GOOD_OLD_INODE_SIZE, 1966 blocksize); 1967 exit(1); 1968 } 1969 fs_param.s_inode_size = inode_size; 1970 } 1971 1972 /* Make sure number of inodes specified will fit in 32 bits */ 1973 if (num_inodes == 0) { 1974 unsigned long long n; 1975 n = ext2fs_blocks_count(&fs_param) * blocksize / inode_ratio; 1976 if (n > MAX_32_NUM) { 1977 if (fs_param.s_feature_incompat & 1978 EXT4_FEATURE_INCOMPAT_64BIT) 1979 num_inodes = MAX_32_NUM; 1980 else { 1981 com_err(program_name, 0, 1982 _("too many inodes (%llu), raise " 1983 "inode ratio?"), n); 1984 exit(1); 1985 } 1986 } 1987 } else if (num_inodes > MAX_32_NUM) { 1988 com_err(program_name, 0, 1989 _("too many inodes (%llu), specify < 2^32 inodes"), 1990 num_inodes); 1991 exit(1); 1992 } 1993 /* 1994 * Calculate number of inodes based on the inode ratio 1995 */ 1996 fs_param.s_inodes_count = num_inodes ? num_inodes : 1997 (ext2fs_blocks_count(&fs_param) * blocksize) / inode_ratio; 1998 1999 if ((((long long)fs_param.s_inodes_count) * 2000 (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >= 2001 ((ext2fs_blocks_count(&fs_param)) * 2002 EXT2_BLOCK_SIZE(&fs_param))) { 2003 com_err(program_name, 0, _("inode_size (%u) * inodes_count " 2004 "(%u) too big for a\n\t" 2005 "filesystem with %llu blocks, " 2006 "specify higher inode_ratio (-i)\n\t" 2007 "or lower inode count (-N).\n"), 2008 inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE, 2009 fs_param.s_inodes_count, 2010 (unsigned long long) ext2fs_blocks_count(&fs_param)); 2011 exit(1); 2012 } 2013 2014 /* 2015 * Calculate number of blocks to reserve 2016 */ 2017 ext2fs_r_blocks_count_set(&fs_param, reserved_ratio * 2018 ext2fs_blocks_count(&fs_param) / 100.0); 2019 2020 free(fs_type); 2021 free(usage_types); 2022} 2023 2024static int should_do_undo(const char *name) 2025{ 2026 errcode_t retval; 2027 io_channel channel; 2028 __u16 s_magic; 2029 struct ext2_super_block super; 2030 io_manager manager = unix_io_manager; 2031 int csum_flag, force_undo; 2032 2033 csum_flag = EXT2_HAS_RO_COMPAT_FEATURE(&fs_param, 2034 EXT4_FEATURE_RO_COMPAT_GDT_CSUM); 2035 force_undo = get_int_from_profile(fs_types, "force_undo", 0); 2036 if (!force_undo && (!csum_flag || !lazy_itable_init)) 2037 return 0; 2038 2039 retval = manager->open(name, IO_FLAG_EXCLUSIVE, &channel); 2040 if (retval) { 2041 /* 2042 * We don't handle error cases instead we 2043 * declare that the file system doesn't exist 2044 * and let the rest of mke2fs take care of 2045 * error 2046 */ 2047 retval = 0; 2048 goto open_err_out; 2049 } 2050 2051 io_channel_set_blksize(channel, SUPERBLOCK_OFFSET); 2052 retval = io_channel_read_blk64(channel, 1, -SUPERBLOCK_SIZE, &super); 2053 if (retval) { 2054 retval = 0; 2055 goto err_out; 2056 } 2057 2058#if defined(WORDS_BIGENDIAN) 2059 s_magic = ext2fs_swab16(super.s_magic); 2060#else 2061 s_magic = super.s_magic; 2062#endif 2063 2064 if (s_magic == EXT2_SUPER_MAGIC) 2065 retval = 1; 2066 2067err_out: 2068 io_channel_close(channel); 2069 2070open_err_out: 2071 2072 return retval; 2073} 2074 2075static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr) 2076{ 2077 errcode_t retval = ENOMEM; 2078 char *tdb_dir = NULL, *tdb_file = NULL; 2079 char *device_name, *tmp_name; 2080 int free_tdb_dir = 0; 2081 2082 /* 2083 * Configuration via a conf file would be 2084 * nice 2085 */ 2086 tdb_dir = getenv("E2FSPROGS_UNDO_DIR"); 2087 if (!tdb_dir) { 2088 profile_get_string(profile, "defaults", 2089 "undo_dir", 0, "/var/lib/e2fsprogs", 2090 &tdb_dir); 2091 free_tdb_dir = 1; 2092 } 2093 2094 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) || 2095 access(tdb_dir, W_OK)) 2096 return 0; 2097 2098 tmp_name = strdup(name); 2099 if (!tmp_name) 2100 goto errout; 2101 device_name = basename(tmp_name); 2102 tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(device_name) + 7 + 1); 2103 if (!tdb_file) { 2104 free(tmp_name); 2105 goto errout; 2106 } 2107 sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, device_name); 2108 free(tmp_name); 2109 2110 if (!access(tdb_file, F_OK)) { 2111 if (unlink(tdb_file) < 0) { 2112 retval = errno; 2113 goto errout; 2114 } 2115 } 2116 2117 set_undo_io_backing_manager(*io_ptr); 2118 *io_ptr = undo_io_manager; 2119 retval = set_undo_io_backup_file(tdb_file); 2120 if (retval) 2121 goto errout; 2122 printf(_("Overwriting existing filesystem; this can be undone " 2123 "using the command:\n" 2124 " e2undo %s %s\n\n"), tdb_file, name); 2125 2126 if (free_tdb_dir) 2127 free(tdb_dir); 2128 free(tdb_file); 2129 return 0; 2130 2131errout: 2132 if (free_tdb_dir) 2133 free(tdb_dir); 2134 free(tdb_file); 2135 com_err(program_name, retval, 2136 _("while trying to setup undo file\n")); 2137 return retval; 2138} 2139 2140static int mke2fs_discard_device(ext2_filsys fs) 2141{ 2142 struct ext2fs_numeric_progress_struct progress; 2143 blk64_t blocks = ext2fs_blocks_count(fs->super); 2144 blk64_t count = DISCARD_STEP_MB; 2145 blk64_t cur; 2146 int retval = 0; 2147 2148 /* 2149 * Let's try if discard really works on the device, so 2150 * we do not print numeric progress resulting in failure 2151 * afterwards. 2152 */ 2153 retval = io_channel_discard(fs->io, 0, fs->blocksize); 2154 if (retval) 2155 return retval; 2156 cur = fs->blocksize; 2157 2158 count *= (1024 * 1024); 2159 count /= fs->blocksize; 2160 2161 ext2fs_numeric_progress_init(fs, &progress, 2162 _("Discarding device blocks: "), 2163 blocks); 2164 while (cur < blocks) { 2165 ext2fs_numeric_progress_update(fs, &progress, cur); 2166 2167 if (cur + count > blocks) 2168 count = blocks - cur; 2169 2170 retval = io_channel_discard(fs->io, cur, count); 2171 if (retval) 2172 break; 2173 cur += count; 2174 } 2175 2176 if (retval) { 2177 ext2fs_numeric_progress_close(fs, &progress, 2178 _("failed - ")); 2179 if (!quiet) 2180 printf("%s\n",error_message(retval)); 2181 } else 2182 ext2fs_numeric_progress_close(fs, &progress, 2183 _("done \n")); 2184 2185 return retval; 2186} 2187 2188static void fix_cluster_bg_counts(ext2_filsys fs) 2189{ 2190 blk64_t cluster, num_clusters, tot_free; 2191 int grp_free, num_free, group, num; 2192 2193 num_clusters = EXT2FS_B2C(fs, ext2fs_blocks_count(fs->super)); 2194 tot_free = num_free = num = group = grp_free = 0; 2195 for (cluster = EXT2FS_B2C(fs, fs->super->s_first_data_block); 2196 cluster < num_clusters; cluster++) { 2197 if (!ext2fs_test_block_bitmap2(fs->block_map, 2198 EXT2FS_C2B(fs, cluster))) { 2199 grp_free++; 2200 tot_free++; 2201 } 2202 num++; 2203 if ((num == fs->super->s_clusters_per_group) || 2204 (cluster == num_clusters-1)) { 2205 ext2fs_bg_free_blocks_count_set(fs, group, grp_free); 2206 ext2fs_group_desc_csum_set(fs, group); 2207 num = 0; 2208 grp_free = 0; 2209 group++; 2210 } 2211 } 2212 ext2fs_free_blocks_count_set(fs->super, EXT2FS_C2B(fs, tot_free)); 2213} 2214 2215static int create_quota_inodes(ext2_filsys fs) 2216{ 2217 quota_ctx_t qctx; 2218 2219 quota_init_context(&qctx, fs, -1); 2220 quota_compute_usage(qctx); 2221 quota_write_inode(qctx, quotatype); 2222 quota_release_context(&qctx); 2223 2224 return 0; 2225} 2226 2227int main (int argc, char *argv[]) 2228{ 2229 errcode_t retval = 0; 2230 ext2_filsys fs; 2231 badblocks_list bb_list = 0; 2232 unsigned int journal_blocks; 2233 unsigned int i, checkinterval; 2234 int max_mnt_count; 2235 int val, hash_alg; 2236 int flags; 2237 int old_bitmaps; 2238 io_manager io_ptr; 2239 char tdb_string[40]; 2240 char *hash_alg_str; 2241 int itable_zeroed = 0; 2242 2243#ifdef ENABLE_NLS 2244 setlocale(LC_MESSAGES, ""); 2245 setlocale(LC_CTYPE, ""); 2246 bindtextdomain(NLS_CAT_NAME, LOCALEDIR); 2247 textdomain(NLS_CAT_NAME); 2248 set_com_err_gettext(gettext); 2249#endif 2250 PRS(argc, argv); 2251 2252#ifdef CONFIG_TESTIO_DEBUG 2253 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) { 2254 io_ptr = test_io_manager; 2255 test_io_backing_manager = unix_io_manager; 2256 } else 2257#endif 2258 io_ptr = unix_io_manager; 2259 2260 if (should_do_undo(device_name)) { 2261 retval = mke2fs_setup_tdb(device_name, &io_ptr); 2262 if (retval) 2263 exit(1); 2264 } 2265 2266 /* 2267 * Initialize the superblock.... 2268 */ 2269 flags = EXT2_FLAG_EXCLUSIVE; 2270 if (direct_io) 2271 flags |= EXT2_FLAG_DIRECT_IO; 2272 profile_get_boolean(profile, "options", "old_bitmaps", 0, 0, 2273 &old_bitmaps); 2274 if (!old_bitmaps) 2275 flags |= EXT2_FLAG_64BITS; 2276 /* 2277 * By default, we print how many inode tables or block groups 2278 * or whatever we've written so far. The quiet flag disables 2279 * this, along with a lot of other output. 2280 */ 2281 if (!quiet) 2282 flags |= EXT2_FLAG_PRINT_PROGRESS; 2283 retval = ext2fs_initialize(device_name, flags, &fs_param, io_ptr, &fs); 2284 if (retval) { 2285 com_err(device_name, retval, _("while setting up superblock")); 2286 exit(1); 2287 } 2288 2289 /* Can't undo discard ... */ 2290 if (!noaction && discard && (io_ptr != undo_io_manager)) { 2291 retval = mke2fs_discard_device(fs); 2292 if (!retval && io_channel_discard_zeroes_data(fs->io)) { 2293 if (verbose) 2294 printf(_("Discard succeeded and will return 0s " 2295 " - skipping inode table wipe\n")); 2296 lazy_itable_init = 1; 2297 itable_zeroed = 1; 2298 } 2299 } 2300 2301 sprintf(tdb_string, "tdb_data_size=%d", fs->blocksize <= 4096 ? 2302 32768 : fs->blocksize * 8); 2303 io_channel_set_options(fs->io, tdb_string); 2304 2305 if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS) 2306 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS; 2307 2308 if ((fs_param.s_feature_incompat & 2309 (EXT3_FEATURE_INCOMPAT_EXTENTS|EXT4_FEATURE_INCOMPAT_FLEX_BG)) || 2310 (fs_param.s_feature_ro_compat & 2311 (EXT4_FEATURE_RO_COMPAT_HUGE_FILE|EXT4_FEATURE_RO_COMPAT_GDT_CSUM| 2312 EXT4_FEATURE_RO_COMPAT_DIR_NLINK| 2313 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE))) 2314 fs->super->s_kbytes_written = 1; 2315 2316 /* 2317 * Wipe out the old on-disk superblock 2318 */ 2319 if (!noaction) 2320 zap_sector(fs, 2, 6); 2321 2322 /* 2323 * Parse or generate a UUID for the filesystem 2324 */ 2325 if (fs_uuid) { 2326 if (uuid_parse(fs_uuid, fs->super->s_uuid) !=0) { 2327 com_err(device_name, 0, "could not parse UUID: %s\n", 2328 fs_uuid); 2329 exit(1); 2330 } 2331 } else 2332 uuid_generate(fs->super->s_uuid); 2333 2334 /* 2335 * Initialize the directory index variables 2336 */ 2337 hash_alg_str = get_string_from_profile(fs_types, "hash_alg", 2338 "half_md4"); 2339 hash_alg = e2p_string2hash(hash_alg_str); 2340 free(hash_alg_str); 2341 fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg : 2342 EXT2_HASH_HALF_MD4; 2343 uuid_generate((unsigned char *) fs->super->s_hash_seed); 2344 2345 /* 2346 * Periodic checks can be enabled/disabled via config file. 2347 * Note we override the kernel include file's idea of what the default 2348 * check interval (never) should be. It's a good idea to check at 2349 * least *occasionally*, specially since servers will never rarely get 2350 * to reboot, since Linux is so robust these days. :-) 2351 * 2352 * 180 days (six months) seems like a good value. 2353 */ 2354#ifdef EXT2_DFL_CHECKINTERVAL 2355#undef EXT2_DFL_CHECKINTERVAL 2356#endif 2357#define EXT2_DFL_CHECKINTERVAL (86400L * 180L) 2358 2359 if (get_bool_from_profile(fs_types, "enable_periodic_fsck", 0)) { 2360 fs->super->s_checkinterval = EXT2_DFL_CHECKINTERVAL; 2361 fs->super->s_max_mnt_count = EXT2_DFL_MAX_MNT_COUNT; 2362 /* 2363 * Add "jitter" to the superblock's check interval so that we 2364 * don't check all the filesystems at the same time. We use a 2365 * kludgy hack of using the UUID to derive a random jitter value 2366 */ 2367 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++) 2368 val += fs->super->s_uuid[i]; 2369 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT; 2370 } else 2371 fs->super->s_max_mnt_count = -1; 2372 2373 /* 2374 * Override the creator OS, if applicable 2375 */ 2376 if (creator_os && !set_os(fs->super, creator_os)) { 2377 com_err (program_name, 0, _("unknown os - %s"), creator_os); 2378 exit(1); 2379 } 2380 2381 /* 2382 * For the Hurd, we will turn off filetype since it doesn't 2383 * support it. 2384 */ 2385 if (fs->super->s_creator_os == EXT2_OS_HURD) 2386 fs->super->s_feature_incompat &= 2387 ~EXT2_FEATURE_INCOMPAT_FILETYPE; 2388 2389 /* 2390 * Set the volume label... 2391 */ 2392 if (volume_label) { 2393 memset(fs->super->s_volume_name, 0, 2394 sizeof(fs->super->s_volume_name)); 2395 strncpy(fs->super->s_volume_name, volume_label, 2396 sizeof(fs->super->s_volume_name)); 2397 } 2398 2399 /* 2400 * Set the last mount directory 2401 */ 2402 if (mount_dir) { 2403 memset(fs->super->s_last_mounted, 0, 2404 sizeof(fs->super->s_last_mounted)); 2405 strncpy(fs->super->s_last_mounted, mount_dir, 2406 sizeof(fs->super->s_last_mounted)); 2407 } 2408 2409 if (!quiet || noaction) 2410 show_stats(fs); 2411 2412 if (noaction) 2413 exit(0); 2414 2415 if (fs->super->s_feature_incompat & 2416 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) { 2417 create_journal_dev(fs); 2418 exit(ext2fs_close(fs) ? 1 : 0); 2419 } 2420 2421 if (bad_blocks_filename) 2422 read_bb_file(fs, &bb_list, bad_blocks_filename); 2423 if (cflag) 2424 test_disk(fs, &bb_list); 2425 2426 handle_bad_blocks(fs, bb_list); 2427 fs->stride = fs_stride = fs->super->s_raid_stride; 2428 if (!quiet) 2429 printf(_("Allocating group tables: ")); 2430 retval = ext2fs_allocate_tables(fs); 2431 if (retval) { 2432 com_err(program_name, retval, 2433 _("while trying to allocate filesystem tables")); 2434 exit(1); 2435 } 2436 if (!quiet) 2437 printf(_("done \n")); 2438 2439 retval = ext2fs_convert_subcluster_bitmap(fs, &fs->block_map); 2440 if (retval) { 2441 com_err(program_name, retval, 2442 _("\n\twhile converting subcluster bitmap")); 2443 exit(1); 2444 } 2445 2446 if (super_only) { 2447 fs->super->s_state |= EXT2_ERROR_FS; 2448 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY); 2449 /* 2450 * The command "mke2fs -S" is used to recover 2451 * corrupted file systems, so do not mark any of the 2452 * inodes as unused; we want e2fsck to consider all 2453 * inodes as potentially containing recoverable data. 2454 */ 2455 if (fs->super->s_feature_ro_compat & 2456 EXT4_FEATURE_RO_COMPAT_GDT_CSUM) { 2457 for (i = 0; i < fs->group_desc_count; i++) 2458 ext2fs_bg_itable_unused_set(fs, i, 0); 2459 } 2460 } else { 2461 /* rsv must be a power of two (64kB is MD RAID sb alignment) */ 2462 blk64_t rsv = 65536 / fs->blocksize; 2463 blk64_t blocks = ext2fs_blocks_count(fs->super); 2464 blk64_t start; 2465 blk64_t ret_blk; 2466 2467#ifdef ZAP_BOOTBLOCK 2468 zap_sector(fs, 0, 2); 2469#endif 2470 2471 /* 2472 * Wipe out any old MD RAID (or other) metadata at the end 2473 * of the device. This will also verify that the device is 2474 * as large as we think. Be careful with very small devices. 2475 */ 2476 start = (blocks & ~(rsv - 1)); 2477 if (start > rsv) 2478 start -= rsv; 2479 if (start > 0) 2480 retval = ext2fs_zero_blocks2(fs, start, blocks - start, 2481 &ret_blk, NULL); 2482 2483 if (retval) { 2484 com_err(program_name, retval, 2485 _("while zeroing block %llu at end of filesystem"), 2486 ret_blk); 2487 } 2488 write_inode_tables(fs, lazy_itable_init, itable_zeroed); 2489 create_root_dir(fs); 2490 create_lost_and_found(fs); 2491 reserve_inodes(fs); 2492 create_bad_block_inode(fs, bb_list); 2493 if (fs->super->s_feature_compat & 2494 EXT2_FEATURE_COMPAT_RESIZE_INODE) { 2495 retval = ext2fs_create_resize_inode(fs); 2496 if (retval) { 2497 com_err("ext2fs_create_resize_inode", retval, 2498 _("while reserving blocks for online resize")); 2499 exit(1); 2500 } 2501 } 2502 } 2503 2504 if (journal_device) { 2505 ext2_filsys jfs; 2506 2507 if (!force) 2508 check_plausibility(journal_device); 2509 check_mount(journal_device, force, _("journal")); 2510 2511 retval = ext2fs_open(journal_device, EXT2_FLAG_RW| 2512 EXT2_FLAG_JOURNAL_DEV_OK, 0, 2513 fs->blocksize, unix_io_manager, &jfs); 2514 if (retval) { 2515 com_err(program_name, retval, 2516 _("while trying to open journal device %s\n"), 2517 journal_device); 2518 exit(1); 2519 } 2520 if (!quiet) { 2521 printf(_("Adding journal to device %s: "), 2522 journal_device); 2523 fflush(stdout); 2524 } 2525 retval = ext2fs_add_journal_device(fs, jfs); 2526 if(retval) { 2527 com_err (program_name, retval, 2528 _("\n\twhile trying to add journal to device %s"), 2529 journal_device); 2530 exit(1); 2531 } 2532 if (!quiet) 2533 printf(_("done\n")); 2534 ext2fs_close(jfs); 2535 free(journal_device); 2536 } else if ((journal_size) || 2537 (fs_param.s_feature_compat & 2538 EXT3_FEATURE_COMPAT_HAS_JOURNAL)) { 2539 journal_blocks = figure_journal_size(journal_size, fs); 2540 2541 if (super_only) { 2542 printf(_("Skipping journal creation in super-only mode\n")); 2543 fs->super->s_journal_inum = EXT2_JOURNAL_INO; 2544 goto no_journal; 2545 } 2546 2547 if (!journal_blocks) { 2548 fs->super->s_feature_compat &= 2549 ~EXT3_FEATURE_COMPAT_HAS_JOURNAL; 2550 goto no_journal; 2551 } 2552 if (!quiet) { 2553 printf(_("Creating journal (%u blocks): "), 2554 journal_blocks); 2555 fflush(stdout); 2556 } 2557 retval = ext2fs_add_journal_inode(fs, journal_blocks, 2558 journal_flags); 2559 if (retval) { 2560 com_err (program_name, retval, 2561 _("\n\twhile trying to create journal")); 2562 exit(1); 2563 } 2564 if (!quiet) 2565 printf(_("done\n")); 2566 } 2567no_journal: 2568 if (!super_only && 2569 fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_MMP) { 2570 retval = ext2fs_mmp_init(fs); 2571 if (retval) { 2572 fprintf(stderr, _("\nError while enabling multiple " 2573 "mount protection feature.")); 2574 exit(1); 2575 } 2576 if (!quiet) 2577 printf(_("Multiple mount protection is enabled " 2578 "with update interval %d seconds.\n"), 2579 fs->super->s_mmp_update_interval); 2580 } 2581 2582 if (EXT2_HAS_RO_COMPAT_FEATURE(&fs_param, 2583 EXT4_FEATURE_RO_COMPAT_BIGALLOC)) 2584 fix_cluster_bg_counts(fs); 2585 if (EXT2_HAS_RO_COMPAT_FEATURE(&fs_param, 2586 EXT4_FEATURE_RO_COMPAT_QUOTA)) 2587 create_quota_inodes(fs); 2588 2589 if (!quiet) 2590 printf(_("Writing superblocks and " 2591 "filesystem accounting information: ")); 2592 checkinterval = fs->super->s_checkinterval; 2593 max_mnt_count = fs->super->s_max_mnt_count; 2594 retval = ext2fs_close(fs); 2595 if (retval) { 2596 fprintf(stderr, 2597 _("\nWarning, had trouble writing out superblocks.")); 2598 } else if (!quiet) { 2599 printf(_("done\n\n")); 2600 if (!getenv("MKE2FS_SKIP_CHECK_MSG")) 2601 print_check_message(max_mnt_count, checkinterval); 2602 } 2603 2604 remove_error_table(&et_ext2_error_table); 2605 remove_error_table(&et_prof_error_table); 2606 profile_release(profile); 2607 for (i=0; fs_types[i]; i++) 2608 free(fs_types[i]); 2609 free(fs_types); 2610 return retval; 2611} 2612