mke2fs.c revision 86a985e74987b08090ecbacf3d02c8d80594c809
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} 148 149#ifdef __linux__ 150static int parse_version_number(const char *s) 151{ 152 int major, minor, rev; 153 char *endptr; 154 const char *cp = s; 155 156 if (!s) 157 return 0; 158 major = strtol(cp, &endptr, 10); 159 if (cp == endptr || *endptr != '.') 160 return 0; 161 cp = endptr + 1; 162 minor = strtol(cp, &endptr, 10); 163 if (cp == endptr || *endptr != '.') 164 return 0; 165 cp = endptr + 1; 166 rev = strtol(cp, &endptr, 10); 167 if (cp == endptr) 168 return 0; 169 return ((((major * 256) + minor) * 256) + rev); 170} 171#endif 172 173/* 174 * Helper function for read_bb_file and test_disk 175 */ 176static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk) 177{ 178 fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk); 179 return; 180} 181 182/* 183 * Reads the bad blocks list from a file 184 */ 185static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list, 186 const char *bad_blocks_file) 187{ 188 FILE *f; 189 errcode_t retval; 190 191 f = fopen(bad_blocks_file, "r"); 192 if (!f) { 193 com_err("read_bad_blocks_file", errno, 194 _("while trying to open %s"), bad_blocks_file); 195 exit(1); 196 } 197 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block); 198 fclose (f); 199 if (retval) { 200 com_err("ext2fs_read_bb_FILE", retval, 201 _("while reading in list of bad blocks from file")); 202 exit(1); 203 } 204} 205 206/* 207 * Runs the badblocks program to test the disk 208 */ 209static void test_disk(ext2_filsys fs, badblocks_list *bb_list) 210{ 211 FILE *f; 212 errcode_t retval; 213 char buf[1024]; 214 215 sprintf(buf, "badblocks -b %d -X %s%s%s %llu", fs->blocksize, 216 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "", 217 fs->device_name, ext2fs_blocks_count(fs->super)-1); 218 if (verbose) 219 printf(_("Running command: %s\n"), buf); 220 f = popen(buf, "r"); 221 if (!f) { 222 com_err("popen", errno, 223 _("while trying to run '%s'"), buf); 224 exit(1); 225 } 226 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block); 227 pclose(f); 228 if (retval) { 229 com_err("ext2fs_read_bb_FILE", retval, 230 _("while processing list of bad blocks from program")); 231 exit(1); 232 } 233} 234 235static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list) 236{ 237 dgrp_t i; 238 blk_t j; 239 unsigned must_be_good; 240 blk_t blk; 241 badblocks_iterate bb_iter; 242 errcode_t retval; 243 blk_t group_block; 244 int group; 245 int group_bad; 246 247 if (!bb_list) 248 return; 249 250 /* 251 * The primary superblock and group descriptors *must* be 252 * good; if not, abort. 253 */ 254 must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks; 255 for (i = fs->super->s_first_data_block; i <= must_be_good; i++) { 256 if (ext2fs_badblocks_list_test(bb_list, i)) { 257 fprintf(stderr, _("Block %d in primary " 258 "superblock/group descriptor area bad.\n"), i); 259 fprintf(stderr, _("Blocks %u through %u must be good " 260 "in order to build a filesystem.\n"), 261 fs->super->s_first_data_block, must_be_good); 262 fputs(_("Aborting....\n"), stderr); 263 exit(1); 264 } 265 } 266 267 /* 268 * See if any of the bad blocks are showing up in the backup 269 * superblocks and/or group descriptors. If so, issue a 270 * warning and adjust the block counts appropriately. 271 */ 272 group_block = fs->super->s_first_data_block + 273 fs->super->s_blocks_per_group; 274 275 for (i = 1; i < fs->group_desc_count; i++) { 276 group_bad = 0; 277 for (j=0; j < fs->desc_blocks+1; j++) { 278 if (ext2fs_badblocks_list_test(bb_list, 279 group_block + j)) { 280 if (!group_bad) 281 fprintf(stderr, 282_("Warning: the backup superblock/group descriptors at block %u contain\n" 283" bad blocks.\n\n"), 284 group_block); 285 group_bad++; 286 group = ext2fs_group_of_blk2(fs, group_block+j); 287 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1); 288 ext2fs_group_desc_csum_set(fs, group); 289 ext2fs_free_blocks_count_add(fs->super, 1); 290 } 291 } 292 group_block += fs->super->s_blocks_per_group; 293 } 294 295 /* 296 * Mark all the bad blocks as used... 297 */ 298 retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter); 299 if (retval) { 300 com_err("ext2fs_badblocks_list_iterate_begin", retval, 301 _("while marking bad blocks as used")); 302 exit(1); 303 } 304 while (ext2fs_badblocks_list_iterate(bb_iter, &blk)) 305 ext2fs_mark_block_bitmap2(fs->block_map, EXT2FS_B2C(fs, blk)); 306 ext2fs_badblocks_list_iterate_end(bb_iter); 307} 308 309static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed) 310{ 311 errcode_t retval; 312 blk64_t blk; 313 dgrp_t i; 314 int num; 315 struct ext2fs_numeric_progress_struct progress; 316 317 ext2fs_numeric_progress_init(fs, &progress, 318 _("Writing inode tables: "), 319 fs->group_desc_count); 320 321 for (i = 0; i < fs->group_desc_count; i++) { 322 ext2fs_numeric_progress_update(fs, &progress, i); 323 324 blk = ext2fs_inode_table_loc(fs, i); 325 num = fs->inode_blocks_per_group; 326 327 if (lazy_flag) 328 num = ext2fs_div_ceil((fs->super->s_inodes_per_group - 329 ext2fs_bg_itable_unused(fs, i)) * 330 EXT2_INODE_SIZE(fs->super), 331 EXT2_BLOCK_SIZE(fs->super)); 332 if (!lazy_flag || itable_zeroed) { 333 /* The kernel doesn't need to zero the itable blocks */ 334 ext2fs_bg_flags_set(fs, i, EXT2_BG_INODE_ZEROED); 335 ext2fs_group_desc_csum_set(fs, i); 336 } 337 retval = ext2fs_zero_blocks2(fs, blk, num, &blk, &num); 338 if (retval) { 339 fprintf(stderr, _("\nCould not write %d " 340 "blocks in inode table starting at %llu: %s\n"), 341 num, blk, error_message(retval)); 342 exit(1); 343 } 344 if (sync_kludge) { 345 if (sync_kludge == 1) 346 sync(); 347 else if ((i % sync_kludge) == 0) 348 sync(); 349 } 350 } 351 ext2fs_zero_blocks2(0, 0, 0, 0, 0); 352 ext2fs_numeric_progress_close(fs, &progress, 353 _("done \n")); 354} 355 356static void create_root_dir(ext2_filsys fs) 357{ 358 errcode_t retval; 359 struct ext2_inode inode; 360 __u32 uid, gid; 361 362 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0); 363 if (retval) { 364 com_err("ext2fs_mkdir", retval, _("while creating root dir")); 365 exit(1); 366 } 367 if (geteuid()) { 368 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode); 369 if (retval) { 370 com_err("ext2fs_read_inode", retval, 371 _("while reading root inode")); 372 exit(1); 373 } 374 uid = getuid(); 375 inode.i_uid = uid; 376 ext2fs_set_i_uid_high(inode, uid >> 16); 377 if (uid) { 378 gid = getgid(); 379 inode.i_gid = gid; 380 ext2fs_set_i_gid_high(inode, gid >> 16); 381 } 382 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode); 383 if (retval) { 384 com_err("ext2fs_write_inode", retval, 385 _("while setting root inode ownership")); 386 exit(1); 387 } 388 } 389} 390 391static void create_lost_and_found(ext2_filsys fs) 392{ 393 unsigned int lpf_size = 0; 394 errcode_t retval; 395 ext2_ino_t ino; 396 const char *name = "lost+found"; 397 int i; 398 399 fs->umask = 077; 400 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name); 401 if (retval) { 402 com_err("ext2fs_mkdir", retval, 403 _("while creating /lost+found")); 404 exit(1); 405 } 406 407 retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino); 408 if (retval) { 409 com_err("ext2_lookup", retval, 410 _("while looking up /lost+found")); 411 exit(1); 412 } 413 414 for (i=1; i < EXT2_NDIR_BLOCKS; i++) { 415 /* Ensure that lost+found is at least 2 blocks, so we always 416 * test large empty blocks for big-block filesystems. */ 417 if ((lpf_size += fs->blocksize) >= 16*1024 && 418 lpf_size >= 2 * fs->blocksize) 419 break; 420 retval = ext2fs_expand_dir(fs, ino); 421 if (retval) { 422 com_err("ext2fs_expand_dir", retval, 423 _("while expanding /lost+found")); 424 exit(1); 425 } 426 } 427} 428 429static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list) 430{ 431 errcode_t retval; 432 433 ext2fs_mark_inode_bitmap2(fs->inode_map, EXT2_BAD_INO); 434 ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0); 435 retval = ext2fs_update_bb_inode(fs, bb_list); 436 if (retval) { 437 com_err("ext2fs_update_bb_inode", retval, 438 _("while setting bad block inode")); 439 exit(1); 440 } 441 442} 443 444static void reserve_inodes(ext2_filsys fs) 445{ 446 ext2_ino_t i; 447 448 for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++) 449 ext2fs_inode_alloc_stats2(fs, i, +1, 0); 450 ext2fs_mark_ib_dirty(fs); 451} 452 453#define BSD_DISKMAGIC (0x82564557UL) /* The disk magic number */ 454#define BSD_MAGICDISK (0x57455682UL) /* The disk magic number reversed */ 455#define BSD_LABEL_OFFSET 64 456 457static void zap_sector(ext2_filsys fs, int sect, int nsect) 458{ 459 char *buf; 460 int retval; 461 unsigned int *magic; 462 463 buf = malloc(512*nsect); 464 if (!buf) { 465 printf(_("Out of memory erasing sectors %d-%d\n"), 466 sect, sect + nsect - 1); 467 exit(1); 468 } 469 470 if (sect == 0) { 471 /* Check for a BSD disklabel, and don't erase it if so */ 472 retval = io_channel_read_blk64(fs->io, 0, -512, buf); 473 if (retval) 474 fprintf(stderr, 475 _("Warning: could not read block 0: %s\n"), 476 error_message(retval)); 477 else { 478 magic = (unsigned int *) (buf + BSD_LABEL_OFFSET); 479 if ((*magic == BSD_DISKMAGIC) || 480 (*magic == BSD_MAGICDISK)) 481 return; 482 } 483 } 484 485 memset(buf, 0, 512*nsect); 486 io_channel_set_blksize(fs->io, 512); 487 retval = io_channel_write_blk64(fs->io, sect, -512*nsect, buf); 488 io_channel_set_blksize(fs->io, fs->blocksize); 489 free(buf); 490 if (retval) 491 fprintf(stderr, _("Warning: could not erase sector %d: %s\n"), 492 sect, error_message(retval)); 493} 494 495static void create_journal_dev(ext2_filsys fs) 496{ 497 struct ext2fs_numeric_progress_struct progress; 498 errcode_t retval; 499 char *buf; 500 blk64_t blk, err_blk; 501 int c, count, err_count; 502 503 retval = ext2fs_create_journal_superblock(fs, 504 ext2fs_blocks_count(fs->super), 0, &buf); 505 if (retval) { 506 com_err("create_journal_dev", retval, 507 _("while initializing journal superblock")); 508 exit(1); 509 } 510 511 if (journal_flags & EXT2_MKJOURNAL_LAZYINIT) 512 goto write_superblock; 513 514 ext2fs_numeric_progress_init(fs, &progress, 515 _("Zeroing journal device: "), 516 ext2fs_blocks_count(fs->super)); 517 blk = 0; 518 count = ext2fs_blocks_count(fs->super); 519 while (count > 0) { 520 if (count > 1024) 521 c = 1024; 522 else 523 c = count; 524 retval = ext2fs_zero_blocks2(fs, blk, c, &err_blk, &err_count); 525 if (retval) { 526 com_err("create_journal_dev", retval, 527 _("while zeroing journal device " 528 "(block %llu, count %d)"), 529 err_blk, err_count); 530 exit(1); 531 } 532 blk += c; 533 count -= c; 534 ext2fs_numeric_progress_update(fs, &progress, blk); 535 } 536 ext2fs_zero_blocks2(0, 0, 0, 0, 0); 537 538 ext2fs_numeric_progress_close(fs, &progress, NULL); 539write_superblock: 540 retval = io_channel_write_blk64(fs->io, 541 fs->super->s_first_data_block+1, 542 1, buf); 543 if (retval) { 544 com_err("create_journal_dev", retval, 545 _("while writing journal superblock")); 546 exit(1); 547 } 548} 549 550static void show_stats(ext2_filsys fs) 551{ 552 struct ext2_super_block *s = fs->super; 553 char buf[80]; 554 char *os; 555 blk64_t group_block; 556 dgrp_t i; 557 int need, col_left; 558 559 if (ext2fs_blocks_count(&fs_param) != ext2fs_blocks_count(s)) 560 fprintf(stderr, _("warning: %llu blocks unused.\n\n"), 561 ext2fs_blocks_count(&fs_param) - ext2fs_blocks_count(s)); 562 563 memset(buf, 0, sizeof(buf)); 564 strncpy(buf, s->s_volume_name, sizeof(s->s_volume_name)); 565 printf(_("Filesystem label=%s\n"), buf); 566 os = e2p_os2string(fs->super->s_creator_os); 567 if (os) 568 printf(_("OS type: %s\n"), os); 569 free(os); 570 printf(_("Block size=%u (log=%u)\n"), fs->blocksize, 571 s->s_log_block_size); 572 if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super, 573 EXT4_FEATURE_RO_COMPAT_BIGALLOC)) 574 printf(_("Cluster size=%u (log=%u)\n"), 575 fs->blocksize << fs->cluster_ratio_bits, 576 s->s_log_cluster_size); 577 else 578 printf(_("Fragment size=%u (log=%u)\n"), EXT2_CLUSTER_SIZE(s), 579 s->s_log_cluster_size); 580 printf(_("Stride=%u blocks, Stripe width=%u blocks\n"), 581 s->s_raid_stride, s->s_raid_stripe_width); 582 printf(_("%u inodes, %llu blocks\n"), s->s_inodes_count, 583 ext2fs_blocks_count(s)); 584 printf(_("%llu blocks (%2.2f%%) reserved for the super user\n"), 585 ext2fs_r_blocks_count(s), 586 100.0 * ext2fs_r_blocks_count(s) / ext2fs_blocks_count(s)); 587 printf(_("First data block=%u\n"), s->s_first_data_block); 588 if (s->s_reserved_gdt_blocks) 589 printf(_("Maximum filesystem blocks=%lu\n"), 590 (s->s_reserved_gdt_blocks + fs->desc_blocks) * 591 EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group); 592 if (fs->group_desc_count > 1) 593 printf(_("%u block groups\n"), fs->group_desc_count); 594 else 595 printf(_("%u block group\n"), fs->group_desc_count); 596 if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super, 597 EXT4_FEATURE_RO_COMPAT_BIGALLOC)) 598 printf(_("%u blocks per group, %u clusters per group\n"), 599 s->s_blocks_per_group, s->s_clusters_per_group); 600 else 601 printf(_("%u blocks per group, %u fragments per group\n"), 602 s->s_blocks_per_group, s->s_clusters_per_group); 603 printf(_("%u inodes per group\n"), s->s_inodes_per_group); 604 605 if (fs->group_desc_count == 1) { 606 printf("\n"); 607 return; 608 } 609 610 printf(_("Superblock backups stored on blocks: ")); 611 group_block = s->s_first_data_block; 612 col_left = 0; 613 for (i = 1; i < fs->group_desc_count; i++) { 614 group_block += s->s_blocks_per_group; 615 if (!ext2fs_bg_has_super(fs, i)) 616 continue; 617 if (i != 1) 618 printf(", "); 619 need = int_log10(group_block) + 2; 620 if (need > col_left) { 621 printf("\n\t"); 622 col_left = 72; 623 } 624 col_left -= need; 625 printf("%llu", group_block); 626 } 627 printf("\n\n"); 628} 629 630/* 631 * Set the S_CREATOR_OS field. Return true if OS is known, 632 * otherwise, 0. 633 */ 634static int set_os(struct ext2_super_block *sb, char *os) 635{ 636 if (isdigit (*os)) 637 sb->s_creator_os = atoi (os); 638 else if (strcasecmp(os, "linux") == 0) 639 sb->s_creator_os = EXT2_OS_LINUX; 640 else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0) 641 sb->s_creator_os = EXT2_OS_HURD; 642 else if (strcasecmp(os, "freebsd") == 0) 643 sb->s_creator_os = EXT2_OS_FREEBSD; 644 else if (strcasecmp(os, "lites") == 0) 645 sb->s_creator_os = EXT2_OS_LITES; 646 else 647 return 0; 648 return 1; 649} 650 651#define PATH_SET "PATH=/sbin" 652 653static void parse_extended_opts(struct ext2_super_block *param, 654 const char *opts) 655{ 656 char *buf, *token, *next, *p, *arg, *badopt = 0; 657 int len; 658 int r_usage = 0; 659 660 len = strlen(opts); 661 buf = malloc(len+1); 662 if (!buf) { 663 fprintf(stderr, 664 _("Couldn't allocate memory to parse options!\n")); 665 exit(1); 666 } 667 strcpy(buf, opts); 668 for (token = buf; token && *token; token = next) { 669 p = strchr(token, ','); 670 next = 0; 671 if (p) { 672 *p = 0; 673 next = p+1; 674 } 675 arg = strchr(token, '='); 676 if (arg) { 677 *arg = 0; 678 arg++; 679 } 680 if (strcmp(token, "mmp_update_interval") == 0) { 681 if (!arg) { 682 r_usage++; 683 badopt = token; 684 continue; 685 } 686 param->s_mmp_update_interval = strtoul(arg, &p, 0); 687 if (*p) { 688 fprintf(stderr, 689 _("Invalid mmp_update_interval: %s\n"), 690 arg); 691 r_usage++; 692 continue; 693 } 694 } else if (strcmp(token, "stride") == 0) { 695 if (!arg) { 696 r_usage++; 697 badopt = token; 698 continue; 699 } 700 param->s_raid_stride = strtoul(arg, &p, 0); 701 if (*p) { 702 fprintf(stderr, 703 _("Invalid stride parameter: %s\n"), 704 arg); 705 r_usage++; 706 continue; 707 } 708 } else if (strcmp(token, "stripe-width") == 0 || 709 strcmp(token, "stripe_width") == 0) { 710 if (!arg) { 711 r_usage++; 712 badopt = token; 713 continue; 714 } 715 param->s_raid_stripe_width = strtoul(arg, &p, 0); 716 if (*p) { 717 fprintf(stderr, 718 _("Invalid stripe-width parameter: %s\n"), 719 arg); 720 r_usage++; 721 continue; 722 } 723 } else if (!strcmp(token, "resize")) { 724 blk64_t resize; 725 unsigned long bpg, rsv_groups; 726 unsigned long group_desc_count, desc_blocks; 727 unsigned int gdpb, blocksize; 728 int rsv_gdb; 729 730 if (!arg) { 731 r_usage++; 732 badopt = token; 733 continue; 734 } 735 736 resize = parse_num_blocks2(arg, 737 param->s_log_block_size); 738 739 if (resize == 0) { 740 fprintf(stderr, 741 _("Invalid resize parameter: %s\n"), 742 arg); 743 r_usage++; 744 continue; 745 } 746 if (resize <= ext2fs_blocks_count(param)) { 747 fprintf(stderr, 748 _("The resize maximum must be greater " 749 "than the filesystem size.\n")); 750 r_usage++; 751 continue; 752 } 753 754 blocksize = EXT2_BLOCK_SIZE(param); 755 bpg = param->s_blocks_per_group; 756 if (!bpg) 757 bpg = blocksize * 8; 758 gdpb = EXT2_DESC_PER_BLOCK(param); 759 group_desc_count = (__u32) ext2fs_div64_ceil( 760 ext2fs_blocks_count(param), bpg); 761 desc_blocks = (group_desc_count + 762 gdpb - 1) / gdpb; 763 rsv_groups = ext2fs_div64_ceil(resize, bpg); 764 rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) - 765 desc_blocks; 766 if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param)) 767 rsv_gdb = EXT2_ADDR_PER_BLOCK(param); 768 769 if (rsv_gdb > 0) { 770 if (param->s_rev_level == EXT2_GOOD_OLD_REV) { 771 fprintf(stderr, 772 _("On-line resizing not supported with revision 0 filesystems\n")); 773 free(buf); 774 exit(1); 775 } 776 param->s_feature_compat |= 777 EXT2_FEATURE_COMPAT_RESIZE_INODE; 778 779 param->s_reserved_gdt_blocks = rsv_gdb; 780 } 781 } else if (!strcmp(token, "test_fs")) { 782 param->s_flags |= EXT2_FLAGS_TEST_FILESYS; 783 } else if (!strcmp(token, "lazy_itable_init")) { 784 if (arg) 785 lazy_itable_init = strtoul(arg, &p, 0); 786 else 787 lazy_itable_init = 1; 788 } else if (!strcmp(token, "lazy_journal_init")) { 789 if (arg) 790 journal_flags |= strtoul(arg, &p, 0) ? 791 EXT2_MKJOURNAL_LAZYINIT : 0; 792 else 793 journal_flags |= EXT2_MKJOURNAL_LAZYINIT; 794 } else if (!strcmp(token, "discard")) { 795 discard = 1; 796 } else if (!strcmp(token, "nodiscard")) { 797 discard = 0; 798 } else if (!strcmp(token, "quotatype")) { 799 if (!arg) { 800 r_usage++; 801 badopt = token; 802 continue; 803 } 804 if (!strncmp(arg, "usr", 3)) { 805 quotatype = 0; 806 } else if (!strncmp(arg, "grp", 3)) { 807 quotatype = 1; 808 } else { 809 fprintf(stderr, 810 _("Invalid quotatype parameter: %s\n"), 811 arg); 812 r_usage++; 813 continue; 814 } 815 } else { 816 r_usage++; 817 badopt = token; 818 } 819 } 820 if (r_usage) { 821 fprintf(stderr, _("\nBad option(s) specified: %s\n\n" 822 "Extended options are separated by commas, " 823 "and may take an argument which\n" 824 "\tis set off by an equals ('=') sign.\n\n" 825 "Valid extended options are:\n" 826 "\tstride=<RAID per-disk data chunk in blocks>\n" 827 "\tstripe-width=<RAID stride * data disks in blocks>\n" 828 "\tresize=<resize maximum size in blocks>\n" 829 "\tlazy_itable_init=<0 to disable, 1 to enable>\n" 830 "\tlazy_journal_init=<0 to disable, 1 to enable>\n" 831 "\ttest_fs\n" 832 "\tdiscard\n" 833 "\tnodiscard\n" 834 "\tquotatype=<usr OR grp>\n\n"), 835 badopt ? badopt : ""); 836 free(buf); 837 exit(1); 838 } 839 if (param->s_raid_stride && 840 (param->s_raid_stripe_width % param->s_raid_stride) != 0) 841 fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even " 842 "multiple of stride %u.\n\n"), 843 param->s_raid_stripe_width, param->s_raid_stride); 844 845 free(buf); 846} 847 848static __u32 ok_features[3] = { 849 /* Compat */ 850 EXT3_FEATURE_COMPAT_HAS_JOURNAL | 851 EXT2_FEATURE_COMPAT_RESIZE_INODE | 852 EXT2_FEATURE_COMPAT_DIR_INDEX | 853 EXT2_FEATURE_COMPAT_EXT_ATTR, 854 /* Incompat */ 855 EXT2_FEATURE_INCOMPAT_FILETYPE| 856 EXT3_FEATURE_INCOMPAT_EXTENTS| 857 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV| 858 EXT2_FEATURE_INCOMPAT_META_BG| 859 EXT4_FEATURE_INCOMPAT_FLEX_BG| 860 EXT4_FEATURE_INCOMPAT_MMP | 861 EXT4_FEATURE_INCOMPAT_64BIT, 862 /* R/O compat */ 863 EXT2_FEATURE_RO_COMPAT_LARGE_FILE| 864 EXT4_FEATURE_RO_COMPAT_HUGE_FILE| 865 EXT4_FEATURE_RO_COMPAT_DIR_NLINK| 866 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE| 867 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER| 868 EXT4_FEATURE_RO_COMPAT_GDT_CSUM| 869 EXT4_FEATURE_RO_COMPAT_BIGALLOC| 870#ifdef CONFIG_QUOTA 871 EXT4_FEATURE_RO_COMPAT_QUOTA| 872#endif 873 0 874}; 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 blk64_t fs_blocks_count, 993 char *progname) 994{ 995 const char *ext_type = 0; 996 char *parse_str; 997 char *profile_type = 0; 998 char *cp, *t; 999 const char *size_type; 1000 struct str_list list; 1001 unsigned long long meg; 1002 int is_hurd = 0; 1003 1004 if (init_list(&list)) 1005 return 0; 1006 1007 if (creator_os && (!strcasecmp(creator_os, "GNU") || 1008 !strcasecmp(creator_os, "hurd"))) 1009 is_hurd = 1; 1010 1011 if (fs_type) 1012 ext_type = fs_type; 1013 else if (is_hurd) 1014 ext_type = "ext2"; 1015 else if (!strcmp(program_name, "mke3fs")) 1016 ext_type = "ext3"; 1017 else if (!strcmp(program_name, "mke4fs")) 1018 ext_type = "ext4"; 1019 else if (progname) { 1020 ext_type = strrchr(progname, '/'); 1021 if (ext_type) 1022 ext_type++; 1023 else 1024 ext_type = progname; 1025 1026 if (!strncmp(ext_type, "mkfs.", 5)) { 1027 ext_type += 5; 1028 if (ext_type[0] == 0) 1029 ext_type = 0; 1030 } else 1031 ext_type = 0; 1032 } 1033 1034 if (!ext_type) { 1035 profile_get_string(profile, "defaults", "fs_type", 0, 1036 "ext2", &profile_type); 1037 ext_type = profile_type; 1038 if (!strcmp(ext_type, "ext2") && (journal_size != 0)) 1039 ext_type = "ext3"; 1040 } 1041 1042 1043 if (!profile_has_subsection(profile, "fs_types", ext_type) && 1044 strcmp(ext_type, "ext2")) { 1045 printf(_("\nYour mke2fs.conf file does not define the " 1046 "%s filesystem type.\n"), ext_type); 1047 if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") || 1048 !strcmp(ext_type, "ext4dev")) { 1049 printf(_("You probably need to install an updated " 1050 "mke2fs.conf file.\n\n")); 1051 } 1052 if (!force) { 1053 printf(_("Aborting...\n")); 1054 exit(1); 1055 } 1056 } 1057 1058 meg = (1024 * 1024) / EXT2_BLOCK_SIZE(fs_param); 1059 if (fs_blocks_count < 3 * meg) 1060 size_type = "floppy"; 1061 else if (fs_blocks_count < 512 * meg) 1062 size_type = "small"; 1063 else if (fs_blocks_count < 4 * 1024 * 1024 * meg) 1064 size_type = "default"; 1065 else if (fs_blocks_count < 16 * 1024 * 1024 * meg) 1066 size_type = "big"; 1067 else 1068 size_type = "huge"; 1069 1070 if (!usage_types) 1071 usage_types = size_type; 1072 1073 parse_str = malloc(strlen(usage_types)+1); 1074 if (!parse_str) { 1075 free(list.list); 1076 return 0; 1077 } 1078 strcpy(parse_str, usage_types); 1079 1080 if (ext_type) 1081 push_string(&list, ext_type); 1082 cp = parse_str; 1083 while (1) { 1084 t = strchr(cp, ','); 1085 if (t) 1086 *t = '\0'; 1087 1088 if (*cp) { 1089 if (profile_has_subsection(profile, "fs_types", cp)) 1090 push_string(&list, cp); 1091 else if (strcmp(cp, "default") != 0) 1092 fprintf(stderr, 1093 _("\nWarning: the fs_type %s is not " 1094 "defined in mke2fs.conf\n\n"), 1095 cp); 1096 } 1097 if (t) 1098 cp = t+1; 1099 else { 1100 cp = ""; 1101 break; 1102 } 1103 } 1104 free(parse_str); 1105 free(profile_type); 1106 if (is_hurd) 1107 push_string(&list, "hurd"); 1108 return (list.list); 1109} 1110 1111static char *get_string_from_profile(char **fs_types, const char *opt, 1112 const char *def_val) 1113{ 1114 char *ret = 0; 1115 int i; 1116 1117 for (i=0; fs_types[i]; i++); 1118 for (i-=1; i >=0 ; i--) { 1119 profile_get_string(profile, "fs_types", fs_types[i], 1120 opt, 0, &ret); 1121 if (ret) 1122 return ret; 1123 } 1124 profile_get_string(profile, "defaults", opt, 0, def_val, &ret); 1125 return (ret); 1126} 1127 1128static int get_int_from_profile(char **fs_types, const char *opt, int def_val) 1129{ 1130 int ret; 1131 char **cpp; 1132 1133 profile_get_integer(profile, "defaults", opt, 0, def_val, &ret); 1134 for (cpp = fs_types; *cpp; cpp++) 1135 profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret); 1136 return ret; 1137} 1138 1139static double get_double_from_profile(char **fs_types, const char *opt, 1140 double def_val) 1141{ 1142 double ret; 1143 char **cpp; 1144 1145 profile_get_double(profile, "defaults", opt, 0, def_val, &ret); 1146 for (cpp = fs_types; *cpp; cpp++) 1147 profile_get_double(profile, "fs_types", *cpp, opt, ret, &ret); 1148 return ret; 1149} 1150 1151static int get_bool_from_profile(char **fs_types, const char *opt, int def_val) 1152{ 1153 int ret; 1154 char **cpp; 1155 1156 profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret); 1157 for (cpp = fs_types; *cpp; cpp++) 1158 profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret); 1159 return ret; 1160} 1161 1162extern const char *mke2fs_default_profile; 1163static const char *default_files[] = { "<default>", 0 }; 1164 1165#ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY 1166/* 1167 * Sets the geometry of a device (stripe/stride), and returns the 1168 * device's alignment offset, if any, or a negative error. 1169 */ 1170static int get_device_geometry(const char *file, 1171 struct ext2_super_block *fs_param, 1172 int psector_size) 1173{ 1174 int rc = -1; 1175 int blocksize; 1176 blkid_probe pr; 1177 blkid_topology tp; 1178 unsigned long min_io; 1179 unsigned long opt_io; 1180 struct stat statbuf; 1181 1182 /* Nothing to do for a regular file */ 1183 if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode)) 1184 return 0; 1185 1186 pr = blkid_new_probe_from_filename(file); 1187 if (!pr) 1188 goto out; 1189 1190 tp = blkid_probe_get_topology(pr); 1191 if (!tp) 1192 goto out; 1193 1194 min_io = blkid_topology_get_minimum_io_size(tp); 1195 opt_io = blkid_topology_get_optimal_io_size(tp); 1196 blocksize = EXT2_BLOCK_SIZE(fs_param); 1197 if ((min_io == 0) && (psector_size > blocksize)) 1198 min_io = psector_size; 1199 if ((opt_io == 0) && min_io) 1200 opt_io = min_io; 1201 if ((opt_io == 0) && (psector_size > blocksize)) 1202 opt_io = psector_size; 1203 1204 /* setting stripe/stride to blocksize is pointless */ 1205 if (min_io > blocksize) 1206 fs_param->s_raid_stride = min_io / blocksize; 1207 if (opt_io > blocksize) 1208 fs_param->s_raid_stripe_width = opt_io / blocksize; 1209 1210 rc = blkid_topology_get_alignment_offset(tp); 1211out: 1212 blkid_free_probe(pr); 1213 return rc; 1214} 1215#endif 1216 1217static void PRS(int argc, char *argv[]) 1218{ 1219 int b, c; 1220 int cluster_size = 0; 1221 char *tmp, **cpp; 1222 int blocksize = 0; 1223 int inode_ratio = 0; 1224 int inode_size = 0; 1225 unsigned long flex_bg_size = 0; 1226 double reserved_ratio = -1.0; 1227 int lsector_size = 0, psector_size = 0; 1228 int show_version_only = 0; 1229 unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */ 1230 errcode_t retval; 1231 char * oldpath = getenv("PATH"); 1232 char * extended_opts = 0; 1233 char * fs_type = 0; 1234 char * usage_types = 0; 1235 blk64_t dev_size; 1236 blk64_t fs_blocks_count = 0; 1237#ifdef __linux__ 1238 struct utsname ut; 1239#endif 1240 long sysval; 1241 int s_opt = -1, r_opt = -1; 1242 char *fs_features = 0; 1243 int use_bsize; 1244 char *newpath; 1245 int pathlen = sizeof(PATH_SET) + 1; 1246 1247 if (oldpath) 1248 pathlen += strlen(oldpath); 1249 newpath = malloc(pathlen); 1250 if (!newpath) { 1251 fprintf(stderr, _("Couldn't allocate memory for new PATH.\n")); 1252 exit(1); 1253 } 1254 strcpy(newpath, PATH_SET); 1255 1256 /* Update our PATH to include /sbin */ 1257 if (oldpath) { 1258 strcat (newpath, ":"); 1259 strcat (newpath, oldpath); 1260 } 1261 putenv (newpath); 1262 1263 tmp = getenv("MKE2FS_SYNC"); 1264 if (tmp) 1265 sync_kludge = atoi(tmp); 1266 1267 /* Determine the system page size if possible */ 1268#ifdef HAVE_SYSCONF 1269#if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE)) 1270#define _SC_PAGESIZE _SC_PAGE_SIZE 1271#endif 1272#ifdef _SC_PAGESIZE 1273 sysval = sysconf(_SC_PAGESIZE); 1274 if (sysval > 0) 1275 sys_page_size = sysval; 1276#endif /* _SC_PAGESIZE */ 1277#endif /* HAVE_SYSCONF */ 1278 1279 if ((tmp = getenv("MKE2FS_CONFIG")) != NULL) 1280 config_fn[0] = tmp; 1281 profile_set_syntax_err_cb(syntax_err_report); 1282 retval = profile_init(config_fn, &profile); 1283 if (retval == ENOENT) { 1284 retval = profile_init(default_files, &profile); 1285 if (retval) 1286 goto profile_error; 1287 retval = profile_set_default(profile, mke2fs_default_profile); 1288 if (retval) 1289 goto profile_error; 1290 } else if (retval) { 1291profile_error: 1292 fprintf(stderr, _("Couldn't init profile successfully" 1293 " (error: %ld).\n"), retval); 1294 exit(1); 1295 } 1296 1297 setbuf(stdout, NULL); 1298 setbuf(stderr, NULL); 1299 add_error_table(&et_ext2_error_table); 1300 add_error_table(&et_prof_error_table); 1301 memset(&fs_param, 0, sizeof(struct ext2_super_block)); 1302 fs_param.s_rev_level = 1; /* Create revision 1 filesystems now */ 1303 1304#ifdef __linux__ 1305 if (uname(&ut)) { 1306 perror("uname"); 1307 exit(1); 1308 } 1309 linux_version_code = parse_version_number(ut.release); 1310 if (linux_version_code && linux_version_code < (2*65536 + 2*256)) 1311 fs_param.s_rev_level = 0; 1312#endif 1313 1314 if (argc && *argv) { 1315 program_name = get_progname(*argv); 1316 1317 /* If called as mkfs.ext3, create a journal inode */ 1318 if (!strcmp(program_name, "mkfs.ext3") || 1319 !strcmp(program_name, "mke3fs")) 1320 journal_size = -1; 1321 } 1322 1323 while ((c = getopt (argc, argv, 1324 "b:cg:i:jl:m:no:qr:s:t:vC:DE:FG:I:J:KL:M:N:O:R:ST:U:V")) != EOF) { 1325 switch (c) { 1326 case 'b': 1327 blocksize = parse_num_blocks2(optarg, -1); 1328 b = (blocksize > 0) ? blocksize : -blocksize; 1329 if (b < EXT2_MIN_BLOCK_SIZE || 1330 b > EXT2_MAX_BLOCK_SIZE) { 1331 com_err(program_name, 0, 1332 _("invalid block size - %s"), optarg); 1333 exit(1); 1334 } 1335 if (blocksize > 4096) 1336 fprintf(stderr, _("Warning: blocksize %d not " 1337 "usable on most systems.\n"), 1338 blocksize); 1339 if (blocksize > 0) 1340 fs_param.s_log_block_size = 1341 int_log2(blocksize >> 1342 EXT2_MIN_BLOCK_LOG_SIZE); 1343 break; 1344 case 'c': /* Check for bad blocks */ 1345 cflag++; 1346 break; 1347 case 'C': 1348 cluster_size = parse_num_blocks2(optarg, -1); 1349 if (cluster_size <= EXT2_MIN_CLUSTER_SIZE || 1350 cluster_size > EXT2_MAX_CLUSTER_SIZE) { 1351 com_err(program_name, 0, 1352 _("invalid cluster size - %s"), 1353 optarg); 1354 exit(1); 1355 } 1356 break; 1357 case 'D': 1358 direct_io = 1; 1359 break; 1360 case 'g': 1361 fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0); 1362 if (*tmp) { 1363 com_err(program_name, 0, 1364 _("Illegal number for blocks per group")); 1365 exit(1); 1366 } 1367 if ((fs_param.s_blocks_per_group % 8) != 0) { 1368 com_err(program_name, 0, 1369 _("blocks per group must be multiple of 8")); 1370 exit(1); 1371 } 1372 break; 1373 case 'G': 1374 flex_bg_size = strtoul(optarg, &tmp, 0); 1375 if (*tmp) { 1376 com_err(program_name, 0, 1377 _("Illegal number for flex_bg size")); 1378 exit(1); 1379 } 1380 if (flex_bg_size < 1 || 1381 (flex_bg_size & (flex_bg_size-1)) != 0) { 1382 com_err(program_name, 0, 1383 _("flex_bg size must be a power of 2")); 1384 exit(1); 1385 } 1386 break; 1387 case 'i': 1388 inode_ratio = strtoul(optarg, &tmp, 0); 1389 if (inode_ratio < EXT2_MIN_BLOCK_SIZE || 1390 inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024 || 1391 *tmp) { 1392 com_err(program_name, 0, 1393 _("invalid inode ratio %s (min %d/max %d)"), 1394 optarg, EXT2_MIN_BLOCK_SIZE, 1395 EXT2_MAX_BLOCK_SIZE * 1024); 1396 exit(1); 1397 } 1398 break; 1399 case 'J': 1400 parse_journal_opts(optarg); 1401 break; 1402 case 'K': 1403 fprintf(stderr, _("Warning: -K option is deprecated and " 1404 "should not be used anymore. Use " 1405 "\'-E nodiscard\' extended option " 1406 "instead!\n")); 1407 discard = 0; 1408 break; 1409 case 'j': 1410 if (!journal_size) 1411 journal_size = -1; 1412 break; 1413 case 'l': 1414 bad_blocks_filename = malloc(strlen(optarg)+1); 1415 if (!bad_blocks_filename) { 1416 com_err(program_name, ENOMEM, 1417 _("in malloc for bad_blocks_filename")); 1418 exit(1); 1419 } 1420 strcpy(bad_blocks_filename, optarg); 1421 break; 1422 case 'm': 1423 reserved_ratio = strtod(optarg, &tmp); 1424 if ( *tmp || reserved_ratio > 50 || 1425 reserved_ratio < 0) { 1426 com_err(program_name, 0, 1427 _("invalid reserved blocks percent - %s"), 1428 optarg); 1429 exit(1); 1430 } 1431 break; 1432 case 'n': 1433 noaction++; 1434 break; 1435 case 'o': 1436 creator_os = optarg; 1437 break; 1438 case 'q': 1439 quiet = 1; 1440 break; 1441 case 'r': 1442 r_opt = strtoul(optarg, &tmp, 0); 1443 if (*tmp) { 1444 com_err(program_name, 0, 1445 _("bad revision level - %s"), optarg); 1446 exit(1); 1447 } 1448 fs_param.s_rev_level = r_opt; 1449 break; 1450 case 's': /* deprecated */ 1451 s_opt = atoi(optarg); 1452 break; 1453 case 'I': 1454 inode_size = strtoul(optarg, &tmp, 0); 1455 if (*tmp) { 1456 com_err(program_name, 0, 1457 _("invalid inode size - %s"), optarg); 1458 exit(1); 1459 } 1460 break; 1461 case 'v': 1462 verbose = 1; 1463 break; 1464 case 'F': 1465 force++; 1466 break; 1467 case 'L': 1468 volume_label = optarg; 1469 break; 1470 case 'M': 1471 mount_dir = optarg; 1472 break; 1473 case 'N': 1474 num_inodes = strtoul(optarg, &tmp, 0); 1475 if (*tmp) { 1476 com_err(program_name, 0, 1477 _("bad num inodes - %s"), optarg); 1478 exit(1); 1479 } 1480 break; 1481 case 'O': 1482 fs_features = optarg; 1483 break; 1484 case 'E': 1485 case 'R': 1486 extended_opts = optarg; 1487 break; 1488 case 'S': 1489 super_only = 1; 1490 break; 1491 case 't': 1492 if (fs_type) { 1493 com_err(program_name, 0, 1494 _("The -t option may only be used once")); 1495 exit(1); 1496 } 1497 fs_type = strdup(optarg); 1498 break; 1499 case 'T': 1500 if (usage_types) { 1501 com_err(program_name, 0, 1502 _("The -T option may only be used once")); 1503 exit(1); 1504 } 1505 usage_types = strdup(optarg); 1506 break; 1507 case 'U': 1508 fs_uuid = optarg; 1509 break; 1510 case 'V': 1511 /* Print version number and exit */ 1512 show_version_only++; 1513 break; 1514 default: 1515 usage(); 1516 } 1517 } 1518 if ((optind == argc) && !show_version_only) 1519 usage(); 1520 device_name = argv[optind++]; 1521 1522 if (!quiet || show_version_only) 1523 fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION, 1524 E2FSPROGS_DATE); 1525 1526 if (show_version_only) { 1527 fprintf(stderr, _("\tUsing %s\n"), 1528 error_message(EXT2_ET_BASE)); 1529 exit(0); 1530 } 1531 1532 /* 1533 * If there's no blocksize specified and there is a journal 1534 * device, use it to figure out the blocksize 1535 */ 1536 if (blocksize <= 0 && journal_device) { 1537 ext2_filsys jfs; 1538 io_manager io_ptr; 1539 1540#ifdef CONFIG_TESTIO_DEBUG 1541 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) { 1542 io_ptr = test_io_manager; 1543 test_io_backing_manager = unix_io_manager; 1544 } else 1545#endif 1546 io_ptr = unix_io_manager; 1547 retval = ext2fs_open(journal_device, 1548 EXT2_FLAG_JOURNAL_DEV_OK, 0, 1549 0, io_ptr, &jfs); 1550 if (retval) { 1551 com_err(program_name, retval, 1552 _("while trying to open journal device %s\n"), 1553 journal_device); 1554 exit(1); 1555 } 1556 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) { 1557 com_err(program_name, 0, 1558 _("Journal dev blocksize (%d) smaller than " 1559 "minimum blocksize %d\n"), jfs->blocksize, 1560 -blocksize); 1561 exit(1); 1562 } 1563 blocksize = jfs->blocksize; 1564 printf(_("Using journal device's blocksize: %d\n"), blocksize); 1565 fs_param.s_log_block_size = 1566 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE); 1567 ext2fs_close(jfs); 1568 } 1569 1570 if (optind < argc) { 1571 fs_blocks_count = parse_num_blocks2(argv[optind++], 1572 fs_param.s_log_block_size); 1573 if (!fs_blocks_count) { 1574 com_err(program_name, 0, 1575 _("invalid blocks '%s' on device '%s'"), 1576 argv[optind - 1], device_name); 1577 exit(1); 1578 } 1579 } 1580 if (optind < argc) 1581 usage(); 1582 1583 if (!force) 1584 check_plausibility(device_name); 1585 check_mount(device_name, force, _("filesystem")); 1586 1587 /* Determine the size of the device (if possible) */ 1588 if (noaction && fs_blocks_count) { 1589 dev_size = fs_blocks_count; 1590 retval = 0; 1591 } else 1592 retval = ext2fs_get_device_size2(device_name, 1593 EXT2_BLOCK_SIZE(&fs_param), 1594 &dev_size); 1595 1596 if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) { 1597 com_err(program_name, retval, 1598 _("while trying to determine filesystem size")); 1599 exit(1); 1600 } 1601 if (!fs_blocks_count) { 1602 if (retval == EXT2_ET_UNIMPLEMENTED) { 1603 com_err(program_name, 0, 1604 _("Couldn't determine device size; you " 1605 "must specify\nthe size of the " 1606 "filesystem\n")); 1607 exit(1); 1608 } else { 1609 if (dev_size == 0) { 1610 com_err(program_name, 0, 1611 _("Device size reported to be zero. " 1612 "Invalid partition specified, or\n\t" 1613 "partition table wasn't reread " 1614 "after running fdisk, due to\n\t" 1615 "a modified partition being busy " 1616 "and in use. You may need to reboot\n\t" 1617 "to re-read your partition table.\n" 1618 )); 1619 exit(1); 1620 } 1621 fs_blocks_count = dev_size; 1622 if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param)) 1623 fs_blocks_count &= ~((blk64_t) ((sys_page_size / 1624 EXT2_BLOCK_SIZE(&fs_param))-1)); 1625 } 1626 } else if (!force && (fs_blocks_count > dev_size)) { 1627 com_err(program_name, 0, 1628 _("Filesystem larger than apparent device size.")); 1629 proceed_question(); 1630 } 1631 1632 if (!fs_type) 1633 profile_get_string(profile, "devices", device_name, 1634 "fs_type", 0, &fs_type); 1635 if (!usage_types) 1636 profile_get_string(profile, "devices", device_name, 1637 "usage_types", 0, &usage_types); 1638 1639 /* 1640 * We have the file system (or device) size, so we can now 1641 * determine the appropriate file system types so the fs can 1642 * be appropriately configured. 1643 */ 1644 fs_types = parse_fs_type(fs_type, usage_types, &fs_param, 1645 fs_blocks_count ? fs_blocks_count : dev_size, 1646 argv[0]); 1647 if (!fs_types) { 1648 fprintf(stderr, _("Failed to parse fs types list\n")); 1649 exit(1); 1650 } 1651 1652 /* Figure out what features should be enabled */ 1653 1654 tmp = NULL; 1655 if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) { 1656 tmp = get_string_from_profile(fs_types, "base_features", 1657 "sparse_super,filetype,resize_inode,dir_index"); 1658 edit_feature(tmp, &fs_param.s_feature_compat); 1659 free(tmp); 1660 1661 /* And which mount options as well */ 1662 tmp = get_string_from_profile(fs_types, "default_mntopts", 1663 "acl,user_xattr"); 1664 edit_mntopts(tmp, &fs_param.s_default_mount_opts); 1665 if (tmp) 1666 free(tmp); 1667 1668 for (cpp = fs_types; *cpp; cpp++) { 1669 tmp = NULL; 1670 profile_get_string(profile, "fs_types", *cpp, 1671 "features", "", &tmp); 1672 if (tmp && *tmp) 1673 edit_feature(tmp, &fs_param.s_feature_compat); 1674 if (tmp) 1675 free(tmp); 1676 } 1677 tmp = get_string_from_profile(fs_types, "default_features", 1678 ""); 1679 } 1680 edit_feature(fs_features ? fs_features : tmp, 1681 &fs_param.s_feature_compat); 1682 if (tmp) 1683 free(tmp); 1684 1685 /* 1686 * We now need to do a sanity check of fs_blocks_count for 1687 * 32-bit vs 64-bit block number support. 1688 */ 1689 if ((fs_blocks_count > MAX_32_NUM) && (blocksize == 0)) { 1690 fs_blocks_count /= 4; /* Try using a 4k blocksize */ 1691 blocksize = 4096; 1692 fs_param.s_log_block_size = 2; 1693 } 1694 if ((fs_blocks_count > MAX_32_NUM) && 1695 !(fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT) && 1696 get_bool_from_profile(fs_types, "auto_64-bit_support", 0)) { 1697 fs_param.s_feature_incompat |= EXT4_FEATURE_INCOMPAT_64BIT; 1698 fs_param.s_feature_compat &= ~EXT2_FEATURE_COMPAT_RESIZE_INODE; 1699 } 1700 if ((fs_blocks_count > MAX_32_NUM) && 1701 !(fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT)) { 1702 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s " 1703 "too big to be expressed\n\t" 1704 "in 32 bits using a blocksize of %d.\n"), 1705 program_name, fs_blocks_count, device_name, 1706 EXT2_BLOCK_SIZE(&fs_param)); 1707 exit(1); 1708 } 1709 1710 ext2fs_blocks_count_set(&fs_param, fs_blocks_count); 1711 1712 if (fs_param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) { 1713 fs_types[0] = strdup("journal"); 1714 fs_types[1] = 0; 1715 } 1716 1717 if (verbose) { 1718 fputs(_("fs_types for mke2fs.conf resolution: "), stdout); 1719 print_str_list(fs_types); 1720 } 1721 1722 if (r_opt == EXT2_GOOD_OLD_REV && 1723 (fs_param.s_feature_compat || fs_param.s_feature_incompat || 1724 fs_param.s_feature_ro_compat)) { 1725 fprintf(stderr, _("Filesystem features not supported " 1726 "with revision 0 filesystems\n")); 1727 exit(1); 1728 } 1729 1730 if (s_opt > 0) { 1731 if (r_opt == EXT2_GOOD_OLD_REV) { 1732 fprintf(stderr, _("Sparse superblocks not supported " 1733 "with revision 0 filesystems\n")); 1734 exit(1); 1735 } 1736 fs_param.s_feature_ro_compat |= 1737 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER; 1738 } else if (s_opt == 0) 1739 fs_param.s_feature_ro_compat &= 1740 ~EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER; 1741 1742 if (journal_size != 0) { 1743 if (r_opt == EXT2_GOOD_OLD_REV) { 1744 fprintf(stderr, _("Journals not supported " 1745 "with revision 0 filesystems\n")); 1746 exit(1); 1747 } 1748 fs_param.s_feature_compat |= 1749 EXT3_FEATURE_COMPAT_HAS_JOURNAL; 1750 } 1751 1752 /* Get reserved_ratio from profile if not specified on cmd line. */ 1753 if (reserved_ratio < 0.0) { 1754 reserved_ratio = get_double_from_profile( 1755 fs_types, "reserved_ratio", 5.0); 1756 if (reserved_ratio > 50 || reserved_ratio < 0) { 1757 com_err(program_name, 0, 1758 _("invalid reserved blocks percent - %lf"), 1759 reserved_ratio); 1760 exit(1); 1761 } 1762 } 1763 1764 if (fs_param.s_feature_incompat & 1765 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) { 1766 reserved_ratio = 0; 1767 fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV; 1768 fs_param.s_feature_compat = 0; 1769 fs_param.s_feature_ro_compat = 0; 1770 } 1771 1772 if ((fs_param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) && 1773 (fs_param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE)) { 1774 fprintf(stderr, _("The resize_inode and meta_bg features " 1775 "are not compatible.\n" 1776 "They can not be both enabled " 1777 "simultaneously.\n")); 1778 exit(1); 1779 } 1780 1781 /* Set first meta blockgroup via an environment variable */ 1782 /* (this is mostly for debugging purposes) */ 1783 if ((fs_param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) && 1784 ((tmp = getenv("MKE2FS_FIRST_META_BG")))) 1785 fs_param.s_first_meta_bg = atoi(tmp); 1786 1787 /* Get the hardware sector sizes, if available */ 1788 retval = ext2fs_get_device_sectsize(device_name, &lsector_size); 1789 if (retval) { 1790 com_err(program_name, retval, 1791 _("while trying to determine hardware sector size")); 1792 exit(1); 1793 } 1794 retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size); 1795 if (retval) { 1796 com_err(program_name, retval, 1797 _("while trying to determine physical sector size")); 1798 exit(1); 1799 } 1800 1801 if ((tmp = getenv("MKE2FS_DEVICE_SECTSIZE")) != NULL) 1802 lsector_size = atoi(tmp); 1803 if ((tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE")) != NULL) 1804 psector_size = atoi(tmp); 1805 1806 /* Older kernels may not have physical/logical distinction */ 1807 if (!psector_size) 1808 psector_size = lsector_size; 1809 1810 if (blocksize <= 0) { 1811 use_bsize = get_int_from_profile(fs_types, "blocksize", 4096); 1812 1813 if (use_bsize == -1) { 1814 use_bsize = sys_page_size; 1815 if ((linux_version_code < (2*65536 + 6*256)) && 1816 (use_bsize > 4096)) 1817 use_bsize = 4096; 1818 } 1819 if (lsector_size && use_bsize < lsector_size) 1820 use_bsize = lsector_size; 1821 if ((blocksize < 0) && (use_bsize < (-blocksize))) 1822 use_bsize = -blocksize; 1823 blocksize = use_bsize; 1824 ext2fs_blocks_count_set(&fs_param, 1825 ext2fs_blocks_count(&fs_param) / 1826 (blocksize / 1024)); 1827 } else { 1828 if (blocksize < lsector_size) { /* Impossible */ 1829 com_err(program_name, EINVAL, 1830 _("while setting blocksize; too small " 1831 "for device\n")); 1832 exit(1); 1833 } else if ((blocksize < psector_size) && 1834 (psector_size <= sys_page_size)) { /* Suboptimal */ 1835 fprintf(stderr, _("Warning: specified blocksize %d is " 1836 "less than device physical sectorsize %d\n"), 1837 blocksize, psector_size); 1838 } 1839 } 1840 1841 fs_param.s_log_block_size = 1842 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE); 1843 if (fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_BIGALLOC) { 1844 if (!cluster_size) 1845 cluster_size = get_int_from_profile(fs_types, 1846 "cluster_size", 1847 blocksize*16); 1848 fs_param.s_log_cluster_size = 1849 int_log2(cluster_size >> EXT2_MIN_CLUSTER_LOG_SIZE); 1850 if (fs_param.s_log_cluster_size && 1851 fs_param.s_log_cluster_size < fs_param.s_log_block_size) { 1852 com_err(program_name, 0, 1853 _("The cluster size may not be " 1854 "smaller than the block size.\n")); 1855 exit(1); 1856 } 1857 } else if (cluster_size) { 1858 com_err(program_name, 0, 1859 _("specifying a cluster size requires the " 1860 "bigalloc feature")); 1861 exit(1); 1862 } else 1863 fs_param.s_log_cluster_size = fs_param.s_log_block_size; 1864 1865 if (inode_ratio == 0) { 1866 inode_ratio = get_int_from_profile(fs_types, "inode_ratio", 1867 8192); 1868 if (inode_ratio < blocksize) 1869 inode_ratio = blocksize; 1870 if (inode_ratio < EXT2_CLUSTER_SIZE(&fs_param)) 1871 inode_ratio = EXT2_CLUSTER_SIZE(&fs_param); 1872 } 1873 1874#ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY 1875 retval = get_device_geometry(device_name, &fs_param, psector_size); 1876 if (retval < 0) { 1877 fprintf(stderr, 1878 _("warning: Unable to get device geometry for %s\n"), 1879 device_name); 1880 } else if (retval) { 1881 printf(_("%s alignment is offset by %lu bytes.\n"), 1882 device_name, retval); 1883 printf(_("This may result in very poor performance, " 1884 "(re)-partitioning suggested.\n")); 1885 } 1886#endif 1887 1888 blocksize = EXT2_BLOCK_SIZE(&fs_param); 1889 1890 /* 1891 * Initialize s_desc_size so that the parse_extended_opts() 1892 * can correctly handle "-E resize=NNN" if the 64-bit option 1893 * is set. 1894 */ 1895 if (fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT) 1896 fs_param.s_desc_size = EXT2_MIN_DESC_SIZE_64BIT; 1897 1898 /* This check should happen beyond the last assignment to blocksize */ 1899 if (blocksize > sys_page_size) { 1900 if (!force) { 1901 com_err(program_name, 0, 1902 _("%d-byte blocks too big for system (max %d)"), 1903 blocksize, sys_page_size); 1904 proceed_question(); 1905 } 1906 fprintf(stderr, _("Warning: %d-byte blocks too big for system " 1907 "(max %d), forced to continue\n"), 1908 blocksize, sys_page_size); 1909 } 1910 1911 lazy_itable_init = 0; 1912 if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0) 1913 lazy_itable_init = 1; 1914 1915 lazy_itable_init = get_bool_from_profile(fs_types, 1916 "lazy_itable_init", 1917 lazy_itable_init); 1918 discard = get_bool_from_profile(fs_types, "discard" , discard); 1919 journal_flags |= get_bool_from_profile(fs_types, 1920 "lazy_journal_init", 0) ? 1921 EXT2_MKJOURNAL_LAZYINIT : 0; 1922 journal_flags |= EXT2_MKJOURNAL_NO_MNT_CHECK; 1923 1924 /* Get options from profile */ 1925 for (cpp = fs_types; *cpp; cpp++) { 1926 tmp = NULL; 1927 profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp); 1928 if (tmp && *tmp) 1929 parse_extended_opts(&fs_param, tmp); 1930 free(tmp); 1931 } 1932 1933 if (extended_opts) 1934 parse_extended_opts(&fs_param, extended_opts); 1935 1936 /* Can't support bigalloc feature without extents feature */ 1937 if ((fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_BIGALLOC) && 1938 !(fs_param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_EXTENTS)) { 1939 com_err(program_name, 0, 1940 _("Can't support bigalloc feature without " 1941 "extents feature")); 1942 exit(1); 1943 } 1944 1945 /* Since sparse_super is the default, we would only have a problem 1946 * here if it was explicitly disabled. 1947 */ 1948 if ((fs_param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE) && 1949 !(fs_param.s_feature_ro_compat&EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)) { 1950 com_err(program_name, 0, 1951 _("reserved online resize blocks not supported " 1952 "on non-sparse filesystem")); 1953 exit(1); 1954 } 1955 1956 if (fs_param.s_blocks_per_group) { 1957 if (fs_param.s_blocks_per_group < 256 || 1958 fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) { 1959 com_err(program_name, 0, 1960 _("blocks per group count out of range")); 1961 exit(1); 1962 } 1963 } 1964 1965 /* 1966 * If the bigalloc feature is enabled, then the -g option will 1967 * specify the number of clusters per group. 1968 */ 1969 if (fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_BIGALLOC) { 1970 fs_param.s_clusters_per_group = fs_param.s_blocks_per_group; 1971 fs_param.s_blocks_per_group = 0; 1972 } 1973 1974 if (inode_size == 0) 1975 inode_size = get_int_from_profile(fs_types, "inode_size", 0); 1976 if (!flex_bg_size && (fs_param.s_feature_incompat & 1977 EXT4_FEATURE_INCOMPAT_FLEX_BG)) 1978 flex_bg_size = get_int_from_profile(fs_types, 1979 "flex_bg_size", 16); 1980 if (flex_bg_size) { 1981 if (!(fs_param.s_feature_incompat & 1982 EXT4_FEATURE_INCOMPAT_FLEX_BG)) { 1983 com_err(program_name, 0, 1984 _("Flex_bg feature not enabled, so " 1985 "flex_bg size may not be specified")); 1986 exit(1); 1987 } 1988 fs_param.s_log_groups_per_flex = int_log2(flex_bg_size); 1989 } 1990 1991 if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) { 1992 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE || 1993 inode_size > EXT2_BLOCK_SIZE(&fs_param) || 1994 inode_size & (inode_size - 1)) { 1995 com_err(program_name, 0, 1996 _("invalid inode size %d (min %d/max %d)"), 1997 inode_size, EXT2_GOOD_OLD_INODE_SIZE, 1998 blocksize); 1999 exit(1); 2000 } 2001 fs_param.s_inode_size = inode_size; 2002 } 2003 2004 /* Make sure number of inodes specified will fit in 32 bits */ 2005 if (num_inodes == 0) { 2006 unsigned long long n; 2007 n = ext2fs_blocks_count(&fs_param) * blocksize / inode_ratio; 2008 if (n > MAX_32_NUM) { 2009 if (fs_param.s_feature_incompat & 2010 EXT4_FEATURE_INCOMPAT_64BIT) 2011 num_inodes = MAX_32_NUM; 2012 else { 2013 com_err(program_name, 0, 2014 _("too many inodes (%llu), raise " 2015 "inode ratio?"), n); 2016 exit(1); 2017 } 2018 } 2019 } else if (num_inodes > MAX_32_NUM) { 2020 com_err(program_name, 0, 2021 _("too many inodes (%llu), specify < 2^32 inodes"), 2022 num_inodes); 2023 exit(1); 2024 } 2025 /* 2026 * Calculate number of inodes based on the inode ratio 2027 */ 2028 fs_param.s_inodes_count = num_inodes ? num_inodes : 2029 (ext2fs_blocks_count(&fs_param) * blocksize) / inode_ratio; 2030 2031 if ((((long long)fs_param.s_inodes_count) * 2032 (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >= 2033 ((ext2fs_blocks_count(&fs_param)) * 2034 EXT2_BLOCK_SIZE(&fs_param))) { 2035 com_err(program_name, 0, _("inode_size (%u) * inodes_count " 2036 "(%u) too big for a\n\t" 2037 "filesystem with %llu blocks, " 2038 "specify higher inode_ratio (-i)\n\t" 2039 "or lower inode count (-N).\n"), 2040 inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE, 2041 fs_param.s_inodes_count, 2042 (unsigned long long) ext2fs_blocks_count(&fs_param)); 2043 exit(1); 2044 } 2045 2046 /* 2047 * Calculate number of blocks to reserve 2048 */ 2049 ext2fs_r_blocks_count_set(&fs_param, reserved_ratio * 2050 ext2fs_blocks_count(&fs_param) / 100.0); 2051 2052 free(fs_type); 2053 free(usage_types); 2054} 2055 2056static int should_do_undo(const char *name) 2057{ 2058 errcode_t retval; 2059 io_channel channel; 2060 __u16 s_magic; 2061 struct ext2_super_block super; 2062 io_manager manager = unix_io_manager; 2063 int csum_flag, force_undo; 2064 2065 csum_flag = EXT2_HAS_RO_COMPAT_FEATURE(&fs_param, 2066 EXT4_FEATURE_RO_COMPAT_GDT_CSUM); 2067 force_undo = get_int_from_profile(fs_types, "force_undo", 0); 2068 if (!force_undo && (!csum_flag || !lazy_itable_init)) 2069 return 0; 2070 2071 retval = manager->open(name, IO_FLAG_EXCLUSIVE, &channel); 2072 if (retval) { 2073 /* 2074 * We don't handle error cases instead we 2075 * declare that the file system doesn't exist 2076 * and let the rest of mke2fs take care of 2077 * error 2078 */ 2079 retval = 0; 2080 goto open_err_out; 2081 } 2082 2083 io_channel_set_blksize(channel, SUPERBLOCK_OFFSET); 2084 retval = io_channel_read_blk64(channel, 1, -SUPERBLOCK_SIZE, &super); 2085 if (retval) { 2086 retval = 0; 2087 goto err_out; 2088 } 2089 2090#if defined(WORDS_BIGENDIAN) 2091 s_magic = ext2fs_swab16(super.s_magic); 2092#else 2093 s_magic = super.s_magic; 2094#endif 2095 2096 if (s_magic == EXT2_SUPER_MAGIC) 2097 retval = 1; 2098 2099err_out: 2100 io_channel_close(channel); 2101 2102open_err_out: 2103 2104 return retval; 2105} 2106 2107static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr) 2108{ 2109 errcode_t retval = ENOMEM; 2110 char *tdb_dir = NULL, *tdb_file = NULL; 2111 char *device_name, *tmp_name; 2112 int free_tdb_dir = 0; 2113 2114 /* 2115 * Configuration via a conf file would be 2116 * nice 2117 */ 2118 tdb_dir = getenv("E2FSPROGS_UNDO_DIR"); 2119 if (!tdb_dir) { 2120 profile_get_string(profile, "defaults", 2121 "undo_dir", 0, "/var/lib/e2fsprogs", 2122 &tdb_dir); 2123 free_tdb_dir = 1; 2124 } 2125 2126 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) || 2127 access(tdb_dir, W_OK)) 2128 return 0; 2129 2130 tmp_name = strdup(name); 2131 if (!tmp_name) 2132 goto errout; 2133 device_name = basename(tmp_name); 2134 tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(device_name) + 7 + 1); 2135 if (!tdb_file) { 2136 free(tmp_name); 2137 goto errout; 2138 } 2139 sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, device_name); 2140 free(tmp_name); 2141 2142 if (!access(tdb_file, F_OK)) { 2143 if (unlink(tdb_file) < 0) { 2144 retval = errno; 2145 goto errout; 2146 } 2147 } 2148 2149 set_undo_io_backing_manager(*io_ptr); 2150 *io_ptr = undo_io_manager; 2151 retval = set_undo_io_backup_file(tdb_file); 2152 if (retval) 2153 goto errout; 2154 printf(_("Overwriting existing filesystem; this can be undone " 2155 "using the command:\n" 2156 " e2undo %s %s\n\n"), tdb_file, name); 2157 2158 if (free_tdb_dir) 2159 free(tdb_dir); 2160 free(tdb_file); 2161 return 0; 2162 2163errout: 2164 if (free_tdb_dir) 2165 free(tdb_dir); 2166 free(tdb_file); 2167 com_err(program_name, retval, 2168 _("while trying to setup undo file\n")); 2169 return retval; 2170} 2171 2172static int mke2fs_discard_device(ext2_filsys fs) 2173{ 2174 struct ext2fs_numeric_progress_struct progress; 2175 blk64_t blocks = ext2fs_blocks_count(fs->super); 2176 blk64_t count = DISCARD_STEP_MB; 2177 blk64_t cur; 2178 int retval = 0; 2179 2180 /* 2181 * Let's try if discard really works on the device, so 2182 * we do not print numeric progress resulting in failure 2183 * afterwards. 2184 */ 2185 retval = io_channel_discard(fs->io, 0, fs->blocksize); 2186 if (retval) 2187 return retval; 2188 cur = fs->blocksize; 2189 2190 count *= (1024 * 1024); 2191 count /= fs->blocksize; 2192 2193 ext2fs_numeric_progress_init(fs, &progress, 2194 _("Discarding device blocks: "), 2195 blocks); 2196 while (cur < blocks) { 2197 ext2fs_numeric_progress_update(fs, &progress, cur); 2198 2199 if (cur + count > blocks) 2200 count = blocks - cur; 2201 2202 retval = io_channel_discard(fs->io, cur, count); 2203 if (retval) 2204 break; 2205 cur += count; 2206 } 2207 2208 if (retval) { 2209 ext2fs_numeric_progress_close(fs, &progress, 2210 _("failed - ")); 2211 if (!quiet) 2212 printf("%s\n",error_message(retval)); 2213 } else 2214 ext2fs_numeric_progress_close(fs, &progress, 2215 _("done \n")); 2216 2217 return retval; 2218} 2219 2220static void fix_cluster_bg_counts(ext2_filsys fs) 2221{ 2222 blk64_t cluster, num_clusters, tot_free; 2223 int grp_free, num_free, group, num; 2224 2225 num_clusters = EXT2FS_B2C(fs, ext2fs_blocks_count(fs->super)); 2226 tot_free = num_free = num = group = grp_free = 0; 2227 for (cluster = EXT2FS_B2C(fs, fs->super->s_first_data_block); 2228 cluster < num_clusters; cluster++) { 2229 if (!ext2fs_test_block_bitmap2(fs->block_map, 2230 EXT2FS_C2B(fs, cluster))) { 2231 grp_free++; 2232 tot_free++; 2233 } 2234 num++; 2235 if ((num == fs->super->s_clusters_per_group) || 2236 (cluster == num_clusters-1)) { 2237 ext2fs_bg_free_blocks_count_set(fs, group, grp_free); 2238 ext2fs_group_desc_csum_set(fs, group); 2239 num = 0; 2240 grp_free = 0; 2241 group++; 2242 } 2243 } 2244 ext2fs_free_blocks_count_set(fs->super, EXT2FS_C2B(fs, tot_free)); 2245} 2246 2247static int create_quota_inodes(ext2_filsys fs) 2248{ 2249 quota_ctx_t qctx; 2250 2251 quota_init_context(&qctx, fs, -1); 2252 quota_compute_usage(qctx); 2253 quota_write_inode(qctx, quotatype); 2254 quota_release_context(&qctx); 2255 2256 return 0; 2257} 2258 2259int main (int argc, char *argv[]) 2260{ 2261 errcode_t retval = 0; 2262 ext2_filsys fs; 2263 badblocks_list bb_list = 0; 2264 unsigned int journal_blocks; 2265 unsigned int i, checkinterval; 2266 int max_mnt_count; 2267 int val, hash_alg; 2268 int flags; 2269 int old_bitmaps; 2270 io_manager io_ptr; 2271 char tdb_string[40]; 2272 char *hash_alg_str; 2273 int itable_zeroed = 0; 2274 2275#ifdef ENABLE_NLS 2276 setlocale(LC_MESSAGES, ""); 2277 setlocale(LC_CTYPE, ""); 2278 bindtextdomain(NLS_CAT_NAME, LOCALEDIR); 2279 textdomain(NLS_CAT_NAME); 2280 set_com_err_gettext(gettext); 2281#endif 2282 PRS(argc, argv); 2283 2284#ifdef CONFIG_TESTIO_DEBUG 2285 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) { 2286 io_ptr = test_io_manager; 2287 test_io_backing_manager = unix_io_manager; 2288 } else 2289#endif 2290 io_ptr = unix_io_manager; 2291 2292 if (should_do_undo(device_name)) { 2293 retval = mke2fs_setup_tdb(device_name, &io_ptr); 2294 if (retval) 2295 exit(1); 2296 } 2297 2298 /* 2299 * Initialize the superblock.... 2300 */ 2301 flags = EXT2_FLAG_EXCLUSIVE; 2302 if (direct_io) 2303 flags |= EXT2_FLAG_DIRECT_IO; 2304 profile_get_boolean(profile, "options", "old_bitmaps", 0, 0, 2305 &old_bitmaps); 2306 if (!old_bitmaps) 2307 flags |= EXT2_FLAG_64BITS; 2308 /* 2309 * By default, we print how many inode tables or block groups 2310 * or whatever we've written so far. The quiet flag disables 2311 * this, along with a lot of other output. 2312 */ 2313 if (!quiet) 2314 flags |= EXT2_FLAG_PRINT_PROGRESS; 2315 retval = ext2fs_initialize(device_name, flags, &fs_param, io_ptr, &fs); 2316 if (retval) { 2317 com_err(device_name, retval, _("while setting up superblock")); 2318 exit(1); 2319 } 2320 2321 /* Can't undo discard ... */ 2322 if (!noaction && discard && (io_ptr != undo_io_manager)) { 2323 retval = mke2fs_discard_device(fs); 2324 if (!retval && io_channel_discard_zeroes_data(fs->io)) { 2325 if (verbose) 2326 printf(_("Discard succeeded and will return 0s " 2327 " - skipping inode table wipe\n")); 2328 lazy_itable_init = 1; 2329 itable_zeroed = 1; 2330 } 2331 } 2332 2333 sprintf(tdb_string, "tdb_data_size=%d", fs->blocksize <= 4096 ? 2334 32768 : fs->blocksize * 8); 2335 io_channel_set_options(fs->io, tdb_string); 2336 2337 if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS) 2338 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS; 2339 2340 if ((fs_param.s_feature_incompat & 2341 (EXT3_FEATURE_INCOMPAT_EXTENTS|EXT4_FEATURE_INCOMPAT_FLEX_BG)) || 2342 (fs_param.s_feature_ro_compat & 2343 (EXT4_FEATURE_RO_COMPAT_HUGE_FILE|EXT4_FEATURE_RO_COMPAT_GDT_CSUM| 2344 EXT4_FEATURE_RO_COMPAT_DIR_NLINK| 2345 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE))) 2346 fs->super->s_kbytes_written = 1; 2347 2348 /* 2349 * Wipe out the old on-disk superblock 2350 */ 2351 if (!noaction) 2352 zap_sector(fs, 2, 6); 2353 2354 /* 2355 * Parse or generate a UUID for the filesystem 2356 */ 2357 if (fs_uuid) { 2358 if (uuid_parse(fs_uuid, fs->super->s_uuid) !=0) { 2359 com_err(device_name, 0, "could not parse UUID: %s\n", 2360 fs_uuid); 2361 exit(1); 2362 } 2363 } else 2364 uuid_generate(fs->super->s_uuid); 2365 2366 /* 2367 * Initialize the directory index variables 2368 */ 2369 hash_alg_str = get_string_from_profile(fs_types, "hash_alg", 2370 "half_md4"); 2371 hash_alg = e2p_string2hash(hash_alg_str); 2372 free(hash_alg_str); 2373 fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg : 2374 EXT2_HASH_HALF_MD4; 2375 uuid_generate((unsigned char *) fs->super->s_hash_seed); 2376 2377 /* 2378 * Periodic checks can be enabled/disabled via config file. 2379 * Note we override the kernel include file's idea of what the default 2380 * check interval (never) should be. It's a good idea to check at 2381 * least *occasionally*, specially since servers will never rarely get 2382 * to reboot, since Linux is so robust these days. :-) 2383 * 2384 * 180 days (six months) seems like a good value. 2385 */ 2386#ifdef EXT2_DFL_CHECKINTERVAL 2387#undef EXT2_DFL_CHECKINTERVAL 2388#endif 2389#define EXT2_DFL_CHECKINTERVAL (86400L * 180L) 2390 2391 if (get_bool_from_profile(fs_types, "enable_periodic_fsck", 0)) { 2392 fs->super->s_checkinterval = EXT2_DFL_CHECKINTERVAL; 2393 fs->super->s_max_mnt_count = EXT2_DFL_MAX_MNT_COUNT; 2394 /* 2395 * Add "jitter" to the superblock's check interval so that we 2396 * don't check all the filesystems at the same time. We use a 2397 * kludgy hack of using the UUID to derive a random jitter value 2398 */ 2399 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++) 2400 val += fs->super->s_uuid[i]; 2401 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT; 2402 } else 2403 fs->super->s_max_mnt_count = -1; 2404 2405 /* 2406 * Override the creator OS, if applicable 2407 */ 2408 if (creator_os && !set_os(fs->super, creator_os)) { 2409 com_err (program_name, 0, _("unknown os - %s"), creator_os); 2410 exit(1); 2411 } 2412 2413 /* 2414 * For the Hurd, we will turn off filetype since it doesn't 2415 * support it. 2416 */ 2417 if (fs->super->s_creator_os == EXT2_OS_HURD) 2418 fs->super->s_feature_incompat &= 2419 ~EXT2_FEATURE_INCOMPAT_FILETYPE; 2420 2421 /* 2422 * Set the volume label... 2423 */ 2424 if (volume_label) { 2425 memset(fs->super->s_volume_name, 0, 2426 sizeof(fs->super->s_volume_name)); 2427 strncpy(fs->super->s_volume_name, volume_label, 2428 sizeof(fs->super->s_volume_name)); 2429 } 2430 2431 /* 2432 * Set the last mount directory 2433 */ 2434 if (mount_dir) { 2435 memset(fs->super->s_last_mounted, 0, 2436 sizeof(fs->super->s_last_mounted)); 2437 strncpy(fs->super->s_last_mounted, mount_dir, 2438 sizeof(fs->super->s_last_mounted)); 2439 } 2440 2441 if (!quiet || noaction) 2442 show_stats(fs); 2443 2444 if (noaction) 2445 exit(0); 2446 2447 if (fs->super->s_feature_incompat & 2448 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) { 2449 create_journal_dev(fs); 2450 exit(ext2fs_close(fs) ? 1 : 0); 2451 } 2452 2453 if (bad_blocks_filename) 2454 read_bb_file(fs, &bb_list, bad_blocks_filename); 2455 if (cflag) 2456 test_disk(fs, &bb_list); 2457 2458 handle_bad_blocks(fs, bb_list); 2459 fs->stride = fs_stride = fs->super->s_raid_stride; 2460 if (!quiet) 2461 printf(_("Allocating group tables: ")); 2462 retval = ext2fs_allocate_tables(fs); 2463 if (retval) { 2464 com_err(program_name, retval, 2465 _("while trying to allocate filesystem tables")); 2466 exit(1); 2467 } 2468 if (!quiet) 2469 printf(_("done \n")); 2470 2471 retval = ext2fs_convert_subcluster_bitmap(fs, &fs->block_map); 2472 if (retval) { 2473 com_err(program_name, retval, 2474 _("\n\twhile converting subcluster bitmap")); 2475 exit(1); 2476 } 2477 2478 if (super_only) { 2479 fs->super->s_state |= EXT2_ERROR_FS; 2480 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY); 2481 /* 2482 * The command "mke2fs -S" is used to recover 2483 * corrupted file systems, so do not mark any of the 2484 * inodes as unused; we want e2fsck to consider all 2485 * inodes as potentially containing recoverable data. 2486 */ 2487 if (fs->super->s_feature_ro_compat & 2488 EXT4_FEATURE_RO_COMPAT_GDT_CSUM) { 2489 for (i = 0; i < fs->group_desc_count; i++) 2490 ext2fs_bg_itable_unused_set(fs, i, 0); 2491 } 2492 } else { 2493 /* rsv must be a power of two (64kB is MD RAID sb alignment) */ 2494 blk64_t rsv = 65536 / fs->blocksize; 2495 blk64_t blocks = ext2fs_blocks_count(fs->super); 2496 blk64_t start; 2497 blk64_t ret_blk; 2498 2499#ifdef ZAP_BOOTBLOCK 2500 zap_sector(fs, 0, 2); 2501#endif 2502 2503 /* 2504 * Wipe out any old MD RAID (or other) metadata at the end 2505 * of the device. This will also verify that the device is 2506 * as large as we think. Be careful with very small devices. 2507 */ 2508 start = (blocks & ~(rsv - 1)); 2509 if (start > rsv) 2510 start -= rsv; 2511 if (start > 0) 2512 retval = ext2fs_zero_blocks2(fs, start, blocks - start, 2513 &ret_blk, NULL); 2514 2515 if (retval) { 2516 com_err(program_name, retval, 2517 _("while zeroing block %llu at end of filesystem"), 2518 ret_blk); 2519 } 2520 write_inode_tables(fs, lazy_itable_init, itable_zeroed); 2521 create_root_dir(fs); 2522 create_lost_and_found(fs); 2523 reserve_inodes(fs); 2524 create_bad_block_inode(fs, bb_list); 2525 if (fs->super->s_feature_compat & 2526 EXT2_FEATURE_COMPAT_RESIZE_INODE) { 2527 retval = ext2fs_create_resize_inode(fs); 2528 if (retval) { 2529 com_err("ext2fs_create_resize_inode", retval, 2530 _("while reserving blocks for online resize")); 2531 exit(1); 2532 } 2533 } 2534 } 2535 2536 if (journal_device) { 2537 ext2_filsys jfs; 2538 2539 if (!force) 2540 check_plausibility(journal_device); 2541 check_mount(journal_device, force, _("journal")); 2542 2543 retval = ext2fs_open(journal_device, EXT2_FLAG_RW| 2544 EXT2_FLAG_JOURNAL_DEV_OK, 0, 2545 fs->blocksize, unix_io_manager, &jfs); 2546 if (retval) { 2547 com_err(program_name, retval, 2548 _("while trying to open journal device %s\n"), 2549 journal_device); 2550 exit(1); 2551 } 2552 if (!quiet) { 2553 printf(_("Adding journal to device %s: "), 2554 journal_device); 2555 fflush(stdout); 2556 } 2557 retval = ext2fs_add_journal_device(fs, jfs); 2558 if(retval) { 2559 com_err (program_name, retval, 2560 _("\n\twhile trying to add journal to device %s"), 2561 journal_device); 2562 exit(1); 2563 } 2564 if (!quiet) 2565 printf(_("done\n")); 2566 ext2fs_close(jfs); 2567 free(journal_device); 2568 } else if ((journal_size) || 2569 (fs_param.s_feature_compat & 2570 EXT3_FEATURE_COMPAT_HAS_JOURNAL)) { 2571 journal_blocks = figure_journal_size(journal_size, fs); 2572 2573 if (super_only) { 2574 printf(_("Skipping journal creation in super-only mode\n")); 2575 fs->super->s_journal_inum = EXT2_JOURNAL_INO; 2576 goto no_journal; 2577 } 2578 2579 if (!journal_blocks) { 2580 fs->super->s_feature_compat &= 2581 ~EXT3_FEATURE_COMPAT_HAS_JOURNAL; 2582 goto no_journal; 2583 } 2584 if (!quiet) { 2585 printf(_("Creating journal (%u blocks): "), 2586 journal_blocks); 2587 fflush(stdout); 2588 } 2589 retval = ext2fs_add_journal_inode(fs, journal_blocks, 2590 journal_flags); 2591 if (retval) { 2592 com_err (program_name, retval, 2593 _("\n\twhile trying to create journal")); 2594 exit(1); 2595 } 2596 if (!quiet) 2597 printf(_("done\n")); 2598 } 2599no_journal: 2600 if (!super_only && 2601 fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_MMP) { 2602 retval = ext2fs_mmp_init(fs); 2603 if (retval) { 2604 fprintf(stderr, _("\nError while enabling multiple " 2605 "mount protection feature.")); 2606 exit(1); 2607 } 2608 if (!quiet) 2609 printf(_("Multiple mount protection is enabled " 2610 "with update interval %d seconds.\n"), 2611 fs->super->s_mmp_update_interval); 2612 } 2613 2614 if (EXT2_HAS_RO_COMPAT_FEATURE(&fs_param, 2615 EXT4_FEATURE_RO_COMPAT_BIGALLOC)) 2616 fix_cluster_bg_counts(fs); 2617 if (EXT2_HAS_RO_COMPAT_FEATURE(&fs_param, 2618 EXT4_FEATURE_RO_COMPAT_QUOTA)) 2619 create_quota_inodes(fs); 2620 2621 if (!quiet) 2622 printf(_("Writing superblocks and " 2623 "filesystem accounting information: ")); 2624 checkinterval = fs->super->s_checkinterval; 2625 max_mnt_count = fs->super->s_max_mnt_count; 2626 retval = ext2fs_close(fs); 2627 if (retval) { 2628 fprintf(stderr, 2629 _("\nWarning, had trouble writing out superblocks.")); 2630 } else if (!quiet) { 2631 printf(_("done\n\n")); 2632 if (!getenv("MKE2FS_SKIP_CHECK_MSG")) 2633 print_check_message(max_mnt_count, checkinterval); 2634 } 2635 2636 remove_error_table(&et_ext2_error_table); 2637 remove_error_table(&et_prof_error_table); 2638 profile_release(profile); 2639 for (i=0; fs_types[i]; i++) 2640 free(fs_types[i]); 2641 free(fs_types); 2642 return retval; 2643} 2644