misc/mke2fs.c

   1 /*
   2  * mke2fs.c - Make a ext2fs filesystem.
   3  *
   4  * Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
   5  *      2003, 2004, 2005 by Theodore Ts'o.
   6  *
   7  * %Begin-Header%
   8  * This file may be redistributed under the terms of the GNU Public
   9  * License.
  10  * %End-Header%
  11  */
  12
  13 /* Usage: mke2fs [options] device
  14  *
  15  * The device may be a block device or a image of one, but this isn't
  16  * enforced (but it's not much fun on a character device :-).
  17  */
  18
  19 #define _XOPEN_SOURCE 600 /* for inclusion of PATH_MAX in Solaris */
  20
  21 #include <stdio.h>
  22 #include <string.h>
  23 #include <strings.h>
  24 #include <fcntl.h>
  25 #include <ctype.h>
  26 #include <time.h>
  27 #ifdef __linux__
  28 #include <sys/utsname.h>
  29 #endif
  30 #ifdef HAVE_GETOPT_H
  31 #include <getopt.h>
  32 #else
  33 extern char *optarg;
  34 extern int optind;
  35 #endif
  36 #ifdef HAVE_UNISTD_H
  37 #include <unistd.h>
  38 #endif
  39 #ifdef HAVE_STDLIB_H
  40 #include <stdlib.h>
  41 #endif
  42 #ifdef HAVE_ERRNO_H
  43 #include <errno.h>
  44 #endif
  45 #ifdef HAVE_MNTENT_H
  46 #include <mntent.h>
  47 #endif
  48 #include <sys/ioctl.h>
  49 #include <sys/types.h>
  50 #include <sys/stat.h>
  51 #include <libgen.h>
  52 #include <limits.h>
  53 #include <blkid/blkid.h>
  54
  55 #include "ext2fs/ext2_fs.h"
  56 #include "ext2fs/ext2fsP.h"
  57 #include "et/com_err.h"
  58 #include "uuid/uuid.h"
  59 #include "e2p/e2p.h"
  60 #include "ext2fs/ext2fs.h"
  61 #include "util.h"
  62 #include "profile.h"
  63 #include "prof_err.h"
  64 #include "../version.h"
  65 #include "nls-enable.h"
  66
  67 #define STRIDE_LENGTH 8
  68
  69 #ifndef __sparc__
  70 #define ZAP_BOOTBLOCK
  71 #endif
  72
  73 extern int isatty(int);
  74 extern FILE *fpopen(const char *cmd, const char *mode);
  75
  76 const char * program_name = "mke2fs";
  77 const char * device_name /* = NULL */;
  78
  79 /* Command line options */
  80 int     cflag;
  81 int     verbose;
  82 int     quiet;
  83 int     super_only;
  84 int     discard = 1;
  85 int     force;
  86 int     noaction;
  87 int     journal_size;
  88 int     journal_flags;
  89 int     lazy_itable_init;
  90 char    *bad_blocks_filename;
  91 __u32   fs_stride;
  92
  93 struct ext2_super_block fs_param;
  94 char *fs_uuid = NULL;
  95 char *creator_os;
  96 char *volume_label;
  97 char *mount_dir;
  98 char *journal_device;
  99 int sync_kludge;        /* Set using the MKE2FS_SYNC env. option */
 100 char **fs_types;
 101
 102 profile_t       profile;
 103
 104 int sys_page_size = 4096;
 105 int linux_version_code = 0;
 106
 107 static void usage(void)
 108 {
 109         fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] "
 110         "[-f fragment-size]\n\t[-i bytes-per-inode] [-I inode-size] "
 111         "[-J journal-options]\n"
 112         "\t[-G meta group size] [-N number-of-inodes]\n"
 113         "\t[-m reserved-blocks-percentage] [-o creator-os]\n"
 114         "\t[-g blocks-per-group] [-L volume-label] "
 115         "[-M last-mounted-directory]\n\t[-O feature[,...]] "
 116         "[-r fs-revision] [-E extended-option[,...]]\n"
 117         "\t[-T fs-type] [-U UUID] [-jnqvFKSV] device [blocks-count]\n"),
 118                 program_name);
 119         exit(1);
 120 }
 121
 122 static int int_log2(int arg)
 123 {
 124         int     l = 0;
 125
 126         arg >>= 1;
 127         while (arg) {
 128                 l++;
 129                 arg >>= 1;
 130         }
 131         return l;
 132 }
 133
 134 static int int_log10(unsigned int arg)
 135 {
 136         int     l;
 137
 138         for (l=0; arg ; l++)
 139                 arg = arg / 10;
 140         return l;
 141 }
 142
 143 static int parse_version_number(const char *s)
 144 {
 145         int     major, minor, rev;
 146         char    *endptr;
 147         const char *cp = s;
 148
 149         if (!s)
 150                 return 0;
 151         major = strtol(cp, &endptr, 10);
 152         if (cp == endptr || *endptr != '.')
 153                 return 0;
 154         cp = endptr + 1;
 155         minor = strtol(cp, &endptr, 10);
 156         if (cp == endptr || *endptr != '.')
 157                 return 0;
 158         cp = endptr + 1;
 159         rev = strtol(cp, &endptr, 10);
 160         if (cp == endptr)
 161                 return 0;
 162         return ((((major * 256) + minor) * 256) + rev);
 163 }
 164
 165 /*
 166  * Helper function for read_bb_file and test_disk
 167  */
 168 static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk)
 169 {
 170         fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk);
 171         return;
 172 }
 173
 174 /*
 175  * Reads the bad blocks list from a file
 176  */
 177 static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list,
 178                          const char *bad_blocks_file)
 179 {
 180         FILE            *f;
 181         errcode_t       retval;
 182
 183         f = fopen(bad_blocks_file, "r");
 184         if (!f) {
 185                 com_err("read_bad_blocks_file", errno,
 186                         _("while trying to open %s"), bad_blocks_file);
 187                 exit(1);
 188         }
 189         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
 190         fclose (f);
 191         if (retval) {
 192                 com_err("ext2fs_read_bb_FILE", retval,
 193                         _("while reading in list of bad blocks from file"));
 194                 exit(1);
 195         }
 196 }
 197
 198 /*
 199  * Runs the badblocks program to test the disk
 200  */
 201 static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
 202 {
 203         FILE            *f;
 204         errcode_t       retval;
 205         char            buf[1024];
 206
 207         sprintf(buf, "badblocks -b %d -X %s%s%s %llu", fs->blocksize,
 208                 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "",
 209                 fs->device_name, ext2fs_blocks_count(fs->super)-1);
 210         if (verbose)
 211                 printf(_("Running command: %s\n"), buf);
 212         f = popen(buf, "r");
 213         if (!f) {
 214                 com_err("popen", errno,
 215                         _("while trying to run '%s'"), buf);
 216                 exit(1);
 217         }
 218         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
 219         pclose(f);
 220         if (retval) {
 221                 com_err("ext2fs_read_bb_FILE", retval,
 222                         _("while processing list of bad blocks from program"));
 223                 exit(1);
 224         }
 225 }
 226
 227 static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
 228 {
 229         dgrp_t                  i;
 230         blk_t                   j;
 231         unsigned                must_be_good;
 232         blk_t                   blk;
 233         badblocks_iterate       bb_iter;
 234         errcode_t               retval;
 235         blk_t                   group_block;
 236         int                     group;
 237         int                     group_bad;
 238
 239         if (!bb_list)
 240                 return;
 241
 242         /*
 243          * The primary superblock and group descriptors *must* be
 244          * good; if not, abort.
 245          */
 246         must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
 247         for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
 248                 if (ext2fs_badblocks_list_test(bb_list, i)) {
 249                         fprintf(stderr, _("Block %d in primary "
 250                                 "superblock/group descriptor area bad.\n"), i);
 251                         fprintf(stderr, _("Blocks %u through %u must be good "
 252                                 "in order to build a filesystem.\n"),
 253                                 fs->super->s_first_data_block, must_be_good);
 254                         fputs(_("Aborting....\n"), stderr);
 255                         exit(1);
 256                 }
 257         }
 258
 259         /*
 260          * See if any of the bad blocks are showing up in the backup
 261          * superblocks and/or group descriptors.  If so, issue a
 262          * warning and adjust the block counts appropriately.
 263          */
 264         group_block = fs->super->s_first_data_block +
 265                 fs->super->s_blocks_per_group;
 266
 267         for (i = 1; i < fs->group_desc_count; i++) {
 268                 group_bad = 0;
 269                 for (j=0; j < fs->desc_blocks+1; j++) {
 270                         if (ext2fs_badblocks_list_test(bb_list,
 271                                                        group_block + j)) {
 272                                 if (!group_bad)
 273                                         fprintf(stderr,
 274 _("Warning: the backup superblock/group descriptors at block %u contain\n"
 275 "       bad blocks.\n\n"),
 276                                                 group_block);
 277                                 group_bad++;
 278                                 group = ext2fs_group_of_blk2(fs, group_block+j);
 279                                 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
 280                                 ext2fs_group_desc_csum_set(fs, group);
 281                                 ext2fs_free_blocks_count_add(fs->super, 1);
 282                         }
 283                 }
 284                 group_block += fs->super->s_blocks_per_group;
 285         }
 286
 287         /*
 288          * Mark all the bad blocks as used...
 289          */
 290         retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
 291         if (retval) {
 292                 com_err("ext2fs_badblocks_list_iterate_begin", retval,
 293                         _("while marking bad blocks as used"));
 294                 exit(1);
 295         }
 296         while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
 297                 ext2fs_mark_block_bitmap2(fs->block_map, blk);
 298         ext2fs_badblocks_list_iterate_end(bb_iter);
 299 }
 300
 301 static void write_inode_tables(ext2_filsys fs, int lazy_flag)
 302 {
 303         errcode_t       retval;
 304         blk_t           blk;
 305         dgrp_t          i;
 306         int             num, ipb;
 307         struct ext2fs_numeric_progress_struct progress;
 308
 309         ext2fs_numeric_progress_init(fs, &progress,
 310                                      _("Writing inode tables: "),
 311                                      fs->group_desc_count);
 312
 313         for (i = 0; i < fs->group_desc_count; i++) {
 314                 ext2fs_numeric_progress_update(fs, &progress, i);
 315
 316                 blk = ext2fs_inode_table_loc(fs, i);
 317                 num = fs->inode_blocks_per_group;
 318
 319                 if (lazy_flag) {
 320                         ipb = fs->blocksize / EXT2_INODE_SIZE(fs->super);
 321                         num = ((((fs->super->s_inodes_per_group -
 322                                   ext2fs_bg_itable_unused(fs, i)) *
 323                                  EXT2_INODE_SIZE(fs->super)) +
 324                                 EXT2_BLOCK_SIZE(fs->super) - 1) /
 325                                EXT2_BLOCK_SIZE(fs->super));
 326                 } else {
 327                         /* The kernel doesn't need to zero the itable blocks */
 328                         ext2fs_bg_flags_set(fs, i, EXT2_BG_INODE_ZEROED);
 329                         ext2fs_group_desc_csum_set(fs, i);
 330                 }
 331                 retval = ext2fs_zero_blocks(fs, blk, num, &blk, &num);
 332                 if (retval) {
 333                         fprintf(stderr, _("\nCould not write %d "
 334                                   "blocks in inode table starting at %u: %s\n"),
 335                                 num, blk, error_message(retval));
 336                         exit(1);
 337                 }
 338                 if (sync_kludge) {
 339                         if (sync_kludge == 1)
 340                                 sync();
 341                         else if ((i % sync_kludge) == 0)
 342                                 sync();
 343                 }
 344         }
 345         ext2fs_zero_blocks(0, 0, 0, 0, 0);
 346         ext2fs_numeric_progress_close(fs, &progress,
 347                                       _("done                            \n"));
 348 }
 349
 350 static void create_root_dir(ext2_filsys fs)
 351 {
 352         errcode_t               retval;
 353         struct ext2_inode       inode;
 354         __u32                   uid, gid;
 355
 356         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
 357         if (retval) {
 358                 com_err("ext2fs_mkdir", retval, _("while creating root dir"));
 359                 exit(1);
 360         }
 361         if (geteuid()) {
 362                 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
 363                 if (retval) {
 364                         com_err("ext2fs_read_inode", retval,
 365                                 _("while reading root inode"));
 366                         exit(1);
 367                 }
 368                 uid = getuid();
 369                 inode.i_uid = uid;
 370                 ext2fs_set_i_uid_high(inode, uid >> 16);
 371                 if (uid) {
 372                         gid = getgid();
 373                         inode.i_gid = gid;
 374                         ext2fs_set_i_gid_high(inode, gid >> 16);
 375                 }
 376                 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
 377                 if (retval) {
 378                         com_err("ext2fs_write_inode", retval,
 379                                 _("while setting root inode ownership"));
 380                         exit(1);
 381                 }
 382         }
 383 }
 384
 385 static void create_lost_and_found(ext2_filsys fs)
 386 {
 387         unsigned int            lpf_size = 0;
 388         errcode_t               retval;
 389         ext2_ino_t              ino;
 390         const char              *name = "lost+found";
 391         int                     i;
 392
 393         fs->umask = 077;
 394         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
 395         if (retval) {
 396                 com_err("ext2fs_mkdir", retval,
 397                         _("while creating /lost+found"));
 398                 exit(1);
 399         }
 400
 401         retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
 402         if (retval) {
 403                 com_err("ext2_lookup", retval,
 404                         _("while looking up /lost+found"));
 405                 exit(1);
 406         }
 407
 408         for (i=1; i < EXT2_NDIR_BLOCKS; i++) {
 409                 /* Ensure that lost+found is at least 2 blocks, so we always
 410                  * test large empty blocks for big-block filesystems.  */
 411                 if ((lpf_size += fs->blocksize) >= 16*1024 &&
 412                     lpf_size >= 2 * fs->blocksize)
 413                         break;
 414                 retval = ext2fs_expand_dir(fs, ino);
 415                 if (retval) {
 416                         com_err("ext2fs_expand_dir", retval,
 417                                 _("while expanding /lost+found"));
 418                         exit(1);
 419                 }
 420         }
 421 }
 422
 423 static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
 424 {
 425         errcode_t       retval;
 426
 427         ext2fs_mark_inode_bitmap2(fs->inode_map, EXT2_BAD_INO);
 428         ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0);
 429         retval = ext2fs_update_bb_inode(fs, bb_list);
 430         if (retval) {
 431                 com_err("ext2fs_update_bb_inode", retval,
 432                         _("while setting bad block inode"));
 433                 exit(1);
 434         }
 435
 436 }
 437
 438 static void reserve_inodes(ext2_filsys fs)
 439 {
 440         ext2_ino_t      i;
 441
 442         for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++)
 443                 ext2fs_inode_alloc_stats2(fs, i, +1, 0);
 444         ext2fs_mark_ib_dirty(fs);
 445 }
 446
 447 #define BSD_DISKMAGIC   (0x82564557UL)  /* The disk magic number */
 448 #define BSD_MAGICDISK   (0x57455682UL)  /* The disk magic number reversed */
 449 #define BSD_LABEL_OFFSET        64
 450
 451 static void zap_sector(ext2_filsys fs, int sect, int nsect)
 452 {
 453         char *buf;
 454         int retval;
 455         unsigned int *magic;
 456
 457         buf = malloc(512*nsect);
 458         if (!buf) {
 459                 printf(_("Out of memory erasing sectors %d-%d\n"),
 460                        sect, sect + nsect - 1);
 461                 exit(1);
 462         }
 463
 464         if (sect == 0) {
 465                 /* Check for a BSD disklabel, and don't erase it if so */
 466                 retval = io_channel_read_blk64(fs->io, 0, -512, buf);
 467                 if (retval)
 468                         fprintf(stderr,
 469                                 _("Warning: could not read block 0: %s\n"),
 470                                 error_message(retval));
 471                 else {
 472                         magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);
 473                         if ((*magic == BSD_DISKMAGIC) ||
 474                             (*magic == BSD_MAGICDISK))
 475                                 return;
 476                 }
 477         }
 478
 479         memset(buf, 0, 512*nsect);
 480         io_channel_set_blksize(fs->io, 512);
 481         retval = io_channel_write_blk64(fs->io, sect, -512*nsect, buf);
 482         io_channel_set_blksize(fs->io, fs->blocksize);
 483         free(buf);
 484         if (retval)
 485                 fprintf(stderr, _("Warning: could not erase sector %d: %s\n"),
 486                         sect, error_message(retval));
 487 }
 488
 489 static void create_journal_dev(ext2_filsys fs)
 490 {
 491         struct ext2fs_numeric_progress_struct progress;
 492         errcode_t               retval;
 493         char                    *buf;
 494         blk_t                   blk, err_blk;
 495         int                     c, count, err_count;
 496
 497         retval = ext2fs_create_journal_superblock(fs,
 498                                   ext2fs_blocks_count(fs->super), 0, &buf);
 499         if (retval) {
 500                 com_err("create_journal_dev", retval,
 501                         _("while initializing journal superblock"));
 502                 exit(1);
 503         }
 504         ext2fs_numeric_progress_init(fs, &progress,
 505                                      _("Zeroing journal device: "),
 506                                      ext2fs_blocks_count(fs->super));
 507         blk = 0;
 508         count = ext2fs_blocks_count(fs->super);
 509         while (count > 0) {
 510                 if (count > 1024)
 511                         c = 1024;
 512                 else
 513                         c = count;
 514                 retval = ext2fs_zero_blocks(fs, blk, c, &err_blk, &err_count);
 515                 if (retval) {
 516                         com_err("create_journal_dev", retval,
 517                                 _("while zeroing journal device "
 518                                   "(block %u, count %d)"),
 519                                 err_blk, err_count);
 520                         exit(1);
 521                 }
 522                 blk += c;
 523                 count -= c;
 524                 ext2fs_numeric_progress_update(fs, &progress, blk);
 525         }
 526         ext2fs_zero_blocks(0, 0, 0, 0, 0);
 527
 528         retval = io_channel_write_blk64(fs->io,
 529                                         fs->super->s_first_data_block+1,
 530                                         1, buf);
 531         if (retval) {
 532                 com_err("create_journal_dev", retval,
 533                         _("while writing journal superblock"));
 534                 exit(1);
 535         }
 536         ext2fs_numeric_progress_close(fs, &progress, NULL);
 537 }
 538
 539 static void show_stats(ext2_filsys fs)
 540 {
 541         struct ext2_super_block *s = fs->super;
 542         char                    buf[80];
 543         char                    *os;
 544         blk_t                   group_block;
 545         dgrp_t                  i;
 546         int                     need, col_left;
 547
 548         if (ext2fs_blocks_count(&fs_param) != ext2fs_blocks_count(s))
 549                 fprintf(stderr, _("warning: %llu blocks unused.\n\n"),
 550                        ext2fs_blocks_count(&fs_param) - ext2fs_blocks_count(s));
 551
 552         memset(buf, 0, sizeof(buf));
 553         strncpy(buf, s->s_volume_name, sizeof(s->s_volume_name));
 554         printf(_("Filesystem label=%s\n"), buf);
 555         fputs(_("OS type: "), stdout);
 556         os = e2p_os2string(fs->super->s_creator_os);
 557         fputs(os, stdout);
 558         free(os);
 559         printf("\n");
 560         printf(_("Block size=%u (log=%u)\n"), fs->blocksize,
 561                 s->s_log_block_size);
 562         printf(_("Fragment size=%u (log=%u)\n"), fs->fragsize,
 563                 s->s_log_frag_size);
 564         printf(_("Stride=%u blocks, Stripe width=%u blocks\n"),
 565                s->s_raid_stride, s->s_raid_stripe_width);
 566         printf(_("%u inodes, %llu blocks\n"), s->s_inodes_count,
 567                ext2fs_blocks_count(s));
 568         printf(_("%llu blocks (%2.2f%%) reserved for the super user\n"),
 569                 ext2fs_r_blocks_count(s),
 570                100.0 *  ext2fs_r_blocks_count(s) / ext2fs_blocks_count(s));
 571         printf(_("First data block=%u\n"), s->s_first_data_block);
 572         if (s->s_reserved_gdt_blocks)
 573                 printf(_("Maximum filesystem blocks=%lu\n"),
 574                        (s->s_reserved_gdt_blocks + fs->desc_blocks) *
 575                        EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group);
 576         if (fs->group_desc_count > 1)
 577                 printf(_("%u block groups\n"), fs->group_desc_count);
 578         else
 579                 printf(_("%u block group\n"), fs->group_desc_count);
 580         printf(_("%u blocks per group, %u fragments per group\n"),
 581                s->s_blocks_per_group, s->s_frags_per_group);
 582         printf(_("%u inodes per group\n"), s->s_inodes_per_group);
 583
 584         if (fs->group_desc_count == 1) {
 585                 printf("\n");
 586                 return;
 587         }
 588
 589         printf(_("Superblock backups stored on blocks: "));
 590         group_block = s->s_first_data_block;
 591         col_left = 0;
 592         for (i = 1; i < fs->group_desc_count; i++) {
 593                 group_block += s->s_blocks_per_group;
 594                 if (!ext2fs_bg_has_super(fs, i))
 595                         continue;
 596                 if (i != 1)
 597                         printf(", ");
 598                 need = int_log10(group_block) + 2;
 599                 if (need > col_left) {
 600                         printf("\n\t");
 601                         col_left = 72;
 602                 }
 603                 col_left -= need;
 604                 printf("%u", group_block);
 605         }
 606         printf("\n\n");
 607 }
 608
 609 /*
 610  * Set the S_CREATOR_OS field.  Return true if OS is known,
 611  * otherwise, 0.
 612  */
 613 static int set_os(struct ext2_super_block *sb, char *os)
 614 {
 615         if (isdigit (*os))
 616                 sb->s_creator_os = atoi (os);
 617         else if (strcasecmp(os, "linux") == 0)
 618                 sb->s_creator_os = EXT2_OS_LINUX;
 619         else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0)
 620                 sb->s_creator_os = EXT2_OS_HURD;
 621         else if (strcasecmp(os, "freebsd") == 0)
 622                 sb->s_creator_os = EXT2_OS_FREEBSD;
 623         else if (strcasecmp(os, "lites") == 0)
 624                 sb->s_creator_os = EXT2_OS_LITES;
 625         else
 626                 return 0;
 627         return 1;
 628 }
 629
 630 #define PATH_SET "PATH=/sbin"
 631
 632 static void parse_extended_opts(struct ext2_super_block *param,
 633                                 const char *opts)
 634 {
 635         char    *buf, *token, *next, *p, *arg, *badopt = 0;
 636         int     len;
 637         int     r_usage = 0;
 638
 639         len = strlen(opts);
 640         buf = malloc(len+1);
 641         if (!buf) {
 642                 fprintf(stderr,
 643                         _("Couldn't allocate memory to parse options!\n"));
 644                 exit(1);
 645         }
 646         strcpy(buf, opts);
 647         for (token = buf; token && *token; token = next) {
 648                 p = strchr(token, ',');
 649                 next = 0;
 650                 if (p) {
 651                         *p = 0;
 652                         next = p+1;
 653                 }
 654                 arg = strchr(token, '=');
 655                 if (arg) {
 656                         *arg = 0;
 657                         arg++;
 658                 }
 659                 if (strcmp(token, "stride") == 0) {
 660                         if (!arg) {
 661                                 r_usage++;
 662                                 badopt = token;
 663                                 continue;
 664                         }
 665                         param->s_raid_stride = strtoul(arg, &p, 0);
 666                         if (*p || (param->s_raid_stride == 0)) {
 667                                 fprintf(stderr,
 668                                         _("Invalid stride parameter: %s\n"),
 669                                         arg);
 670                                 r_usage++;
 671                                 continue;
 672                         }
 673                 } else if (strcmp(token, "stripe-width") == 0 ||
 674                            strcmp(token, "stripe_width") == 0) {
 675                         if (!arg) {
 676                                 r_usage++;
 677                                 badopt = token;
 678                                 continue;
 679                         }
 680                         param->s_raid_stripe_width = strtoul(arg, &p, 0);
 681                         if (*p || (param->s_raid_stripe_width == 0)) {
 682                                 fprintf(stderr,
 683                                         _("Invalid stripe-width parameter: %s\n"),
 684                                         arg);
 685                                 r_usage++;
 686                                 continue;
 687                         }
 688                 } else if (!strcmp(token, "resize")) {
 689                         unsigned long resize, bpg, rsv_groups;
 690                         unsigned long group_desc_count, desc_blocks;
 691                         unsigned int gdpb, blocksize;
 692                         int rsv_gdb;
 693
 694                         if (!arg) {
 695                                 r_usage++;
 696                                 badopt = token;
 697                                 continue;
 698                         }
 699
 700                         resize = parse_num_blocks(arg,
 701                                                   param->s_log_block_size);
 702
 703                         if (resize == 0) {
 704                                 fprintf(stderr,
 705                                         _("Invalid resize parameter: %s\n"),
 706                                         arg);
 707                                 r_usage++;
 708                                 continue;
 709                         }
 710                         if (resize <= ext2fs_blocks_count(param)) {
 711                                 fprintf(stderr,
 712                                         _("The resize maximum must be greater "
 713                                           "than the filesystem size.\n"));
 714                                 r_usage++;
 715                                 continue;
 716                         }
 717
 718                         blocksize = EXT2_BLOCK_SIZE(param);
 719                         bpg = param->s_blocks_per_group;
 720                         if (!bpg)
 721                                 bpg = blocksize * 8;
 722                         gdpb = EXT2_DESC_PER_BLOCK(param);
 723                         group_desc_count = (__u32) ext2fs_div64_ceil(
 724                                 ext2fs_blocks_count(param), bpg);
 725                         desc_blocks = (group_desc_count +
 726                                        gdpb - 1) / gdpb;
 727                         rsv_groups = ext2fs_div_ceil(resize, bpg);
 728                         rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) -
 729                                 desc_blocks;
 730                         if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param))
 731                                 rsv_gdb = EXT2_ADDR_PER_BLOCK(param);
 732
 733                         if (rsv_gdb > 0) {
 734                                 if (param->s_rev_level == EXT2_GOOD_OLD_REV) {
 735                                         fprintf(stderr,
 736         _("On-line resizing not supported with revision 0 filesystems\n"));
 737                                         free(buf);
 738                                         exit(1);
 739                                 }
 740                                 param->s_feature_compat |=
 741                                         EXT2_FEATURE_COMPAT_RESIZE_INODE;
 742
 743                                 param->s_reserved_gdt_blocks = rsv_gdb;
 744                         }
 745                 } else if (!strcmp(token, "test_fs")) {
 746                         param->s_flags |= EXT2_FLAGS_TEST_FILESYS;
 747                 } else if (!strcmp(token, "lazy_itable_init")) {
 748                         if (arg)
 749                                 lazy_itable_init = strtoul(arg, &p, 0);
 750                         else
 751                                 lazy_itable_init = 1;
 752                 } else {
 753                         r_usage++;
 754                         badopt = token;
 755                 }
 756         }
 757         if (r_usage) {
 758                 fprintf(stderr, _("\nBad option(s) specified: %s\n\n"
 759                         "Extended options are separated by commas, "
 760                         "and may take an argument which\n"
 761                         "\tis set off by an equals ('=') sign.\n\n"
 762                         "Valid extended options are:\n"
 763                         "\tstride=<RAID per-disk data chunk in blocks>\n"
 764                         "\tstripe-width=<RAID stride * data disks in blocks>\n"
 765                         "\tresize=<resize maximum size in blocks>\n"
 766                         "\tlazy_itable_init=<0 to disable, 1 to enable>\n"
 767                         "\ttest_fs\n\n"),
 768                         badopt ? badopt : "");
 769                 free(buf);
 770                 exit(1);
 771         }
 772         if (param->s_raid_stride &&
 773             (param->s_raid_stripe_width % param->s_raid_stride) != 0)
 774                 fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even "
 775                                   "multiple of stride %u.\n\n"),
 776                         param->s_raid_stripe_width, param->s_raid_stride);
 777
 778         free(buf);
 779 }
 780
 781 static __u32 ok_features[3] = {
 782         /* Compat */
 783         EXT3_FEATURE_COMPAT_HAS_JOURNAL |
 784                 EXT2_FEATURE_COMPAT_RESIZE_INODE |
 785                 EXT2_FEATURE_COMPAT_DIR_INDEX |
 786                 EXT2_FEATURE_COMPAT_EXT_ATTR,
 787         /* Incompat */
 788         EXT2_FEATURE_INCOMPAT_FILETYPE|
 789                 EXT3_FEATURE_INCOMPAT_EXTENTS|
 790                 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
 791                 EXT2_FEATURE_INCOMPAT_META_BG|
 792                 EXT4_FEATURE_INCOMPAT_FLEX_BG,
 793         /* R/O compat */
 794         EXT2_FEATURE_RO_COMPAT_LARGE_FILE|
 795                 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
 796                 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
 797                 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
 798                 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|
 799                 EXT4_FEATURE_RO_COMPAT_GDT_CSUM
 800 };
 801
 802
 803 static void syntax_err_report(const char *filename, long err, int line_num)
 804 {
 805         fprintf(stderr,
 806                 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"),
 807                 filename, line_num, error_message(err));
 808         exit(1);
 809 }
 810
 811 static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 };
 812
 813 static void edit_feature(const char *str, __u32 *compat_array)
 814 {
 815         if (!str)
 816                 return;
 817
 818         if (e2p_edit_feature(str, compat_array, ok_features)) {
 819                 fprintf(stderr, _("Invalid filesystem option set: %s\n"),
 820                         str);
 821                 exit(1);
 822         }
 823 }
 824
 825 struct str_list {
 826         char **list;
 827         int num;
 828         int max;
 829 };
 830
 831 static errcode_t init_list(struct str_list *sl)
 832 {
 833         sl->num = 0;
 834         sl->max = 0;
 835         sl->list = malloc((sl->max+1) * sizeof(char *));
 836         if (!sl->list)
 837                 return ENOMEM;
 838         sl->list[0] = 0;
 839         return 0;
 840 }
 841
 842 static errcode_t push_string(struct str_list *sl, const char *str)
 843 {
 844         char **new_list;
 845
 846         if (sl->num >= sl->max) {
 847                 sl->max += 2;
 848                 new_list = realloc(sl->list, (sl->max+1) * sizeof(char *));
 849                 if (!new_list)
 850                         return ENOMEM;
 851                 sl->list = new_list;
 852         }
 853         sl->list[sl->num] = malloc(strlen(str)+1);
 854         if (sl->list[sl->num] == 0)
 855                 return ENOMEM;
 856         strcpy(sl->list[sl->num], str);
 857         sl->num++;
 858         sl->list[sl->num] = 0;
 859         return 0;
 860 }
 861
 862 static void print_str_list(char **list)
 863 {
 864         char **cpp;
 865
 866         for (cpp = list; *cpp; cpp++) {
 867                 printf("'%s'", *cpp);
 868                 if (cpp[1])
 869                         fputs(", ", stdout);
 870         }
 871         fputc('\n', stdout);
 872 }
 873
 874 static char **parse_fs_type(const char *fs_type,
 875                             const char *usage_types,
 876                             struct ext2_super_block *fs_param,
 877                             char *progname)
 878 {
 879         const char      *ext_type = 0;
 880         char            *parse_str;
 881         char            *profile_type = 0;
 882         char            *cp, *t;
 883         const char      *size_type;
 884         struct str_list list;
 885         unsigned long   meg;
 886         int             is_hurd = 0;
 887
 888         if (init_list(&list))
 889                 return 0;
 890
 891         if (creator_os && (!strcasecmp(creator_os, "GNU") ||
 892                            !strcasecmp(creator_os, "hurd")))
 893                 is_hurd = 1;
 894
 895         if (fs_type)
 896                 ext_type = fs_type;
 897         else if (is_hurd)
 898                 ext_type = "ext2";
 899         else if (!strcmp(program_name, "mke3fs"))
 900                 ext_type = "ext3";
 901         else if (progname) {
 902                 ext_type = strrchr(progname, '/');
 903                 if (ext_type)
 904                         ext_type++;
 905                 else
 906                         ext_type = progname;
 907
 908                 if (!strncmp(ext_type, "mkfs.", 5)) {
 909                         ext_type += 5;
 910                         if (ext_type[0] == 0)
 911                                 ext_type = 0;
 912                 } else
 913                         ext_type = 0;
 914         }
 915
 916         if (!ext_type) {
 917                 profile_get_string(profile, "defaults", "fs_type", 0,
 918                                    "ext2", &profile_type);
 919                 ext_type = profile_type;
 920                 if (!strcmp(ext_type, "ext2") && (journal_size != 0))
 921                         ext_type = "ext3";
 922         }
 923
 924         if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") ||
 925             !strcmp(ext_type, "ext4dev")) {
 926                 profile_get_string(profile, "fs_types", ext_type, "features",
 927                                    0, &t);
 928                 if (!t) {
 929                         printf(_("\nWarning!  Your mke2fs.conf file does "
 930                                  "not define the %s filesystem type.\n"),
 931                                ext_type);
 932                         printf(_("You probably need to install an updated "
 933                                  "mke2fs.conf file.\n\n"));
 934                         sleep(5);
 935                 }
 936         }
 937
 938         meg = (1024 * 1024) / EXT2_BLOCK_SIZE(fs_param);
 939         if (ext2fs_blocks_count(fs_param) < 3 * meg)
 940                 size_type = "floppy";
 941         else if (ext2fs_blocks_count(fs_param) < 512 * meg)
 942                 size_type = "small";
 943         else
 944                 size_type = "default";
 945
 946         if (!usage_types)
 947                 usage_types = size_type;
 948
 949         parse_str = malloc(usage_types ? strlen(usage_types)+1 : 1);
 950         if (!parse_str) {
 951                 free(list.list);
 952                 return 0;
 953         }
 954         if (usage_types)
 955                 strcpy(parse_str, usage_types);
 956         else
 957                 *parse_str = '\0';
 958
 959         if (ext_type)
 960                 push_string(&list, ext_type);
 961         cp = parse_str;
 962         while (1) {
 963                 t = strchr(cp, ',');
 964                 if (t)
 965                         *t = '\0';
 966
 967                 if (*cp)
 968                         push_string(&list, cp);
 969                 if (t)
 970                         cp = t+1;
 971                 else {
 972                         cp = "";
 973                         break;
 974                 }
 975         }
 976         free(parse_str);
 977         free(profile_type);
 978         if (is_hurd)
 979                 push_string(&list, "hurd");
 980         return (list.list);
 981 }
 982
 983 static char *get_string_from_profile(char **fs_types, const char *opt,
 984                                      const char *def_val)
 985 {
 986         char *ret = 0;
 987         int i;
 988
 989         for (i=0; fs_types[i]; i++);
 990         for (i-=1; i >=0 ; i--) {
 991                 profile_get_string(profile, "fs_types", fs_types[i],
 992                                    opt, 0, &ret);
 993                 if (ret)
 994                         return ret;
 995         }
 996         profile_get_string(profile, "defaults", opt, 0, def_val, &ret);
 997         return (ret);
 998 }
 999
1000 static int get_int_from_profile(char **fs_types, const char *opt, int def_val)
1001 {
1002         int ret;
1003         char **cpp;
1004
1005         profile_get_integer(profile, "defaults", opt, 0, def_val, &ret);
1006         for (cpp = fs_types; *cpp; cpp++)
1007                 profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret);
1008         return ret;
1009 }
1010
1011 static int get_bool_from_profile(char **fs_types, const char *opt, int def_val)
1012 {
1013         int ret;
1014         char **cpp;
1015
1016         profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret);
1017         for (cpp = fs_types; *cpp; cpp++)
1018                 profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret);
1019         return ret;
1020 }
1021
1022 extern const char *mke2fs_default_profile;
1023 static const char *default_files[] = { "<default>", 0 };
1024
1025 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1026 /*
1027  * Sets the geometry of a device (stripe/stride), and returns the
1028  * device's alignment offset, if any, or a negative error.
1029  */
1030 static int ext2fs_get_device_geometry(const char *file,
1031                                       struct ext2_super_block *fs_param)
1032 {
1033         int rc = -1;
1034         int blocksize;
1035         blkid_probe pr;
1036         blkid_topology tp;
1037         unsigned long min_io;
1038         unsigned long opt_io;
1039         struct stat statbuf;
1040
1041         /* Nothing to do for a regular file */
1042         if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode))
1043                 return 0;
1044
1045         pr = blkid_new_probe_from_filename(file);
1046         if (!pr)
1047                 goto out;
1048
1049         tp = blkid_probe_get_topology(pr);
1050         if (!tp)
1051                 goto out;
1052
1053         min_io = blkid_topology_get_minimum_io_size(tp);
1054         opt_io = blkid_topology_get_optimal_io_size(tp);
1055         blocksize = EXT2_BLOCK_SIZE(fs_param);
1056
1057         fs_param->s_raid_stride = min_io / blocksize;
1058         fs_param->s_raid_stripe_width = opt_io / blocksize;
1059
1060         rc = blkid_topology_get_alignment_offset(tp);
1061 out:
1062         blkid_free_probe(pr);
1063         return rc;
1064 }
1065 #endif
1066
1067 static void PRS(int argc, char *argv[])
1068 {
1069         int             b, c;
1070         int             size;
1071         char            *tmp, **cpp;
1072         int             blocksize = 0;
1073         int             inode_ratio = 0;
1074         int             inode_size = 0;
1075         unsigned long   flex_bg_size = 0;
1076         double          reserved_ratio = 5.0;
1077         int             lsector_size = 0, psector_size = 0;
1078         int             show_version_only = 0;
1079         unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */
1080         errcode_t       retval;
1081         char *          oldpath = getenv("PATH");
1082         char *          extended_opts = 0;
1083         const char *    fs_type = 0;
1084         const char *    usage_types = 0;
1085         blk_t           dev_size;
1086 #ifdef __linux__
1087         struct          utsname ut;
1088 #endif
1089         long            sysval;
1090         int             s_opt = -1, r_opt = -1;
1091         char            *fs_features = 0;
1092         int             use_bsize;
1093         char            *newpath;
1094         int             pathlen = sizeof(PATH_SET) + 1;
1095
1096         if (oldpath)
1097                 pathlen += strlen(oldpath);
1098         newpath = malloc(pathlen);
1099         strcpy(newpath, PATH_SET);
1100
1101         /* Update our PATH to include /sbin  */
1102         if (oldpath) {
1103                 strcat (newpath, ":");
1104                 strcat (newpath, oldpath);
1105         }
1106         putenv (newpath);
1107
1108         tmp = getenv("MKE2FS_SYNC");
1109         if (tmp)
1110                 sync_kludge = atoi(tmp);
1111
1112         /* Determine the system page size if possible */
1113 #ifdef HAVE_SYSCONF
1114 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
1115 #define _SC_PAGESIZE _SC_PAGE_SIZE
1116 #endif
1117 #ifdef _SC_PAGESIZE
1118         sysval = sysconf(_SC_PAGESIZE);
1119         if (sysval > 0)
1120                 sys_page_size = sysval;
1121 #endif /* _SC_PAGESIZE */
1122 #endif /* HAVE_SYSCONF */
1123
1124         if ((tmp = getenv("MKE2FS_CONFIG")) != NULL)
1125                 config_fn[0] = tmp;
1126         profile_set_syntax_err_cb(syntax_err_report);
1127         retval = profile_init(config_fn, &profile);
1128         if (retval == ENOENT) {
1129                 profile_init(default_files, &profile);
1130                 profile_set_default(profile, mke2fs_default_profile);
1131         }
1132
1133         setbuf(stdout, NULL);
1134         setbuf(stderr, NULL);
1135         add_error_table(&et_ext2_error_table);
1136         add_error_table(&et_prof_error_table);
1137         memset(&fs_param, 0, sizeof(struct ext2_super_block));
1138         fs_param.s_rev_level = 1;  /* Create revision 1 filesystems now */
1139
1140 #ifdef __linux__
1141         if (uname(&ut)) {
1142                 perror("uname");
1143                 exit(1);
1144         }
1145         linux_version_code = parse_version_number(ut.release);
1146         if (linux_version_code && linux_version_code < (2*65536 + 2*256))
1147                 fs_param.s_rev_level = 0;
1148 #endif
1149
1150         if (argc && *argv) {
1151                 program_name = get_progname(*argv);
1152
1153                 /* If called as mkfs.ext3, create a journal inode */
1154                 if (!strcmp(program_name, "mkfs.ext3") ||
1155                     !strcmp(program_name, "mke3fs"))
1156                         journal_size = -1;
1157         }
1158
1159         while ((c = getopt (argc, argv,
1160                     "b:cf:g:G:i:jl:m:no:qr:s:t:vE:FI:J:KL:M:N:O:R:ST:U:V")) != EOF) {
1161                 switch (c) {
1162                 case 'b':
1163                         blocksize = strtol(optarg, &tmp, 0);
1164                         b = (blocksize > 0) ? blocksize : -blocksize;
1165                         if (b < EXT2_MIN_BLOCK_SIZE ||
1166                             b > EXT2_MAX_BLOCK_SIZE || *tmp) {
1167                                 com_err(program_name, 0,
1168                                         _("invalid block size - %s"), optarg);
1169                                 exit(1);
1170                         }
1171                         if (blocksize > 4096)
1172                                 fprintf(stderr, _("Warning: blocksize %d not "
1173                                                   "usable on most systems.\n"),
1174                                         blocksize);
1175                         if (blocksize > 0)
1176                                 fs_param.s_log_block_size =
1177                                         int_log2(blocksize >>
1178                                                  EXT2_MIN_BLOCK_LOG_SIZE);
1179                         break;
1180                 case 'c':       /* Check for bad blocks */
1181                         cflag++;
1182                         break;
1183                 case 'f':
1184                         size = strtoul(optarg, &tmp, 0);
1185                         if (size < EXT2_MIN_BLOCK_SIZE ||
1186                             size > EXT2_MAX_BLOCK_SIZE || *tmp) {
1187                                 com_err(program_name, 0,
1188                                         _("invalid fragment size - %s"),
1189                                         optarg);
1190                                 exit(1);
1191                         }
1192                         fs_param.s_log_frag_size =
1193                                 int_log2(size >> EXT2_MIN_BLOCK_LOG_SIZE);
1194                         fprintf(stderr, _("Warning: fragments not supported.  "
1195                                "Ignoring -f option\n"));
1196                         break;
1197                 case 'g':
1198                         fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
1199                         if (*tmp) {
1200                                 com_err(program_name, 0,
1201                                         _("Illegal number for blocks per group"));
1202                                 exit(1);
1203                         }
1204                         if ((fs_param.s_blocks_per_group % 8) != 0) {
1205                                 com_err(program_name, 0,
1206                                 _("blocks per group must be multiple of 8"));
1207                                 exit(1);
1208                         }
1209                         break;
1210                 case 'G':
1211                         flex_bg_size = strtoul(optarg, &tmp, 0);
1212                         if (*tmp) {
1213                                 com_err(program_name, 0,
1214                                         _("Illegal number for flex_bg size"));
1215                                 exit(1);
1216                         }
1217                         if (flex_bg_size < 1 ||
1218                             (flex_bg_size & (flex_bg_size-1)) != 0) {
1219                                 com_err(program_name, 0,
1220                                         _("flex_bg size must be a power of 2"));
1221                                 exit(1);
1222                         }
1223                         break;
1224                 case 'i':
1225                         inode_ratio = strtoul(optarg, &tmp, 0);
1226                         if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
1227                             inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024 ||
1228                             *tmp) {
1229                                 com_err(program_name, 0,
1230                                         _("invalid inode ratio %s (min %d/max %d)"),
1231                                         optarg, EXT2_MIN_BLOCK_SIZE,
1232                                         EXT2_MAX_BLOCK_SIZE);
1233                                 exit(1);
1234                         }
1235                         break;
1236                 case 'J':
1237                         parse_journal_opts(optarg);
1238                         break;
1239                 case 'K':
1240                         discard = 0;
1241                         break;
1242                 case 'j':
1243                         if (!journal_size)
1244                                 journal_size = -1;
1245                         break;
1246                 case 'l':
1247                         bad_blocks_filename = malloc(strlen(optarg)+1);
1248                         if (!bad_blocks_filename) {
1249                                 com_err(program_name, ENOMEM,
1250                                         _("in malloc for bad_blocks_filename"));
1251                                 exit(1);
1252                         }
1253                         strcpy(bad_blocks_filename, optarg);
1254                         break;
1255                 case 'm':
1256                         reserved_ratio = strtod(optarg, &tmp);
1257                         if ( *tmp || reserved_ratio > 50 ||
1258                              reserved_ratio < 0) {
1259                                 com_err(program_name, 0,
1260                                         _("invalid reserved blocks percent - %s"),
1261                                         optarg);
1262                                 exit(1);
1263                         }
1264                         break;
1265                 case 'n':
1266                         noaction++;
1267                         break;
1268                 case 'o':
1269                         creator_os = optarg;
1270                         break;
1271                 case 'q':
1272                         quiet = 1;
1273                         break;
1274                 case 'r':
1275                         r_opt = strtoul(optarg, &tmp, 0);
1276                         if (*tmp) {
1277                                 com_err(program_name, 0,
1278                                         _("bad revision level - %s"), optarg);
1279                                 exit(1);
1280                         }
1281                         fs_param.s_rev_level = r_opt;
1282                         break;
1283                 case 's':       /* deprecated */
1284                         s_opt = atoi(optarg);
1285                         break;
1286                 case 'I':
1287                         inode_size = strtoul(optarg, &tmp, 0);
1288                         if (*tmp) {
1289                                 com_err(program_name, 0,
1290                                         _("invalid inode size - %s"), optarg);
1291                                 exit(1);
1292                         }
1293                         break;
1294                 case 'v':
1295                         verbose = 1;
1296                         break;
1297                 case 'F':
1298                         force++;
1299                         break;
1300                 case 'L':
1301                         volume_label = optarg;
1302                         break;
1303                 case 'M':
1304                         mount_dir = optarg;
1305                         break;
1306                 case 'N':
1307                         num_inodes = strtoul(optarg, &tmp, 0);
1308                         if (*tmp) {
1309                                 com_err(program_name, 0,
1310                                         _("bad num inodes - %s"), optarg);
1311                                         exit(1);
1312                         }
1313                         break;
1314                 case 'O':
1315                         fs_features = optarg;
1316                         break;
1317                 case 'E':
1318                 case 'R':
1319                         extended_opts = optarg;
1320                         break;
1321                 case 'S':
1322                         super_only = 1;
1323                         break;
1324                 case 't':
1325                         fs_type = optarg;
1326                         break;
1327                 case 'T':
1328                         usage_types = optarg;
1329                         break;
1330                 case 'U':
1331                         fs_uuid = optarg;
1332                         break;
1333                 case 'V':
1334                         /* Print version number and exit */
1335                         show_version_only++;
1336                         break;
1337                 default:
1338                         usage();
1339                 }
1340         }
1341         if ((optind == argc) && !show_version_only)
1342                 usage();
1343         device_name = argv[optind++];
1344
1345         if (!quiet || show_version_only)
1346                 fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION,
1347                          E2FSPROGS_DATE);
1348
1349         if (show_version_only) {
1350                 fprintf(stderr, _("\tUsing %s\n"),
1351                         error_message(EXT2_ET_BASE));
1352                 exit(0);
1353         }
1354
1355         /*
1356          * If there's no blocksize specified and there is a journal
1357          * device, use it to figure out the blocksize
1358          */
1359         if (blocksize <= 0 && journal_device) {
1360                 ext2_filsys     jfs;
1361                 io_manager      io_ptr;
1362
1363 #ifdef CONFIG_TESTIO_DEBUG
1364                 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1365                         io_ptr = test_io_manager;
1366                         test_io_backing_manager = unix_io_manager;
1367                 } else
1368 #endif
1369                         io_ptr = unix_io_manager;
1370                 retval = ext2fs_open(journal_device,
1371                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
1372                                      0, io_ptr, &jfs);
1373                 if (retval) {
1374                         com_err(program_name, retval,
1375                                 _("while trying to open journal device %s\n"),
1376                                 journal_device);
1377                         exit(1);
1378                 }
1379                 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
1380                         com_err(program_name, 0,
1381                                 _("Journal dev blocksize (%d) smaller than "
1382                                   "minimum blocksize %d\n"), jfs->blocksize,
1383                                 -blocksize);
1384                         exit(1);
1385                 }
1386                 blocksize = jfs->blocksize;
1387                 printf(_("Using journal device's blocksize: %d\n"), blocksize);
1388                 fs_param.s_log_block_size =
1389                         int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1390                 ext2fs_close(jfs);
1391         }
1392
1393         if (blocksize > sys_page_size) {
1394                 if (!force) {
1395                         com_err(program_name, 0,
1396                                 _("%d-byte blocks too big for system (max %d)"),
1397                                 blocksize, sys_page_size);
1398                         proceed_question();
1399                 }
1400                 fprintf(stderr, _("Warning: %d-byte blocks too big for system "
1401                                   "(max %d), forced to continue\n"),
1402                         blocksize, sys_page_size);
1403         }
1404         if (optind < argc) {
1405                 ext2fs_blocks_count_set(&fs_param, parse_num_blocks(argv[optind++],
1406                                 fs_param.s_log_block_size));
1407                 if (!ext2fs_blocks_count(&fs_param)) {
1408                         com_err(program_name, 0, _("invalid blocks count - %s"),
1409                                 argv[optind - 1]);
1410                         exit(1);
1411                 }
1412         }
1413         if (optind < argc)
1414                 usage();
1415
1416         if (!force)
1417                 check_plausibility(device_name);
1418         check_mount(device_name, force, _("filesystem"));
1419
1420         fs_param.s_log_frag_size = fs_param.s_log_block_size;
1421
1422         if (noaction && ext2fs_blocks_count(&fs_param)) {
1423                 dev_size = ext2fs_blocks_count(&fs_param);
1424                 retval = 0;
1425         } else {
1426         retry:
1427                 retval = ext2fs_get_device_size(device_name,
1428                                                 EXT2_BLOCK_SIZE(&fs_param),
1429                                                 &dev_size);
1430                 if ((retval == EFBIG) &&
1431                     (blocksize == 0) &&
1432                     (fs_param.s_log_block_size == 0)) {
1433                         fs_param.s_log_block_size = 2;
1434                         blocksize = 4096;
1435                         goto retry;
1436                 }
1437         }
1438
1439         if (retval == EFBIG) {
1440                 blk64_t big_dev_size;
1441
1442                 if (blocksize < 4096) {
1443                         fs_param.s_log_block_size = 2;
1444                         blocksize = 4096;
1445                 }
1446                 retval = ext2fs_get_device_size2(device_name,
1447                                  EXT2_BLOCK_SIZE(&fs_param), &big_dev_size);
1448                 if (retval)
1449                         goto get_size_failure;
1450                 if (big_dev_size == (1ULL << 32)) {
1451                         dev_size = (blk_t) (big_dev_size - 1);
1452                         goto got_size;
1453                 }
1454                 fprintf(stderr, _("%s: Size of device %s too big "
1455                                   "to be expressed in 32 bits\n\t"
1456                                   "using a blocksize of %d.\n"),
1457                         program_name, device_name, EXT2_BLOCK_SIZE(&fs_param));
1458                 exit(1);
1459         }
1460 get_size_failure:
1461         if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
1462                 com_err(program_name, retval,
1463                         _("while trying to determine filesystem size"));
1464                 exit(1);
1465         }
1466 got_size:
1467         if (!ext2fs_blocks_count(&fs_param)) {
1468                 if (retval == EXT2_ET_UNIMPLEMENTED) {
1469                         com_err(program_name, 0,
1470                                 _("Couldn't determine device size; you "
1471                                 "must specify\nthe size of the "
1472                                 "filesystem\n"));
1473                         exit(1);
1474                 } else {
1475                         if (dev_size == 0) {
1476                                 com_err(program_name, 0,
1477                                 _("Device size reported to be zero.  "
1478                                   "Invalid partition specified, or\n\t"
1479                                   "partition table wasn't reread "
1480                                   "after running fdisk, due to\n\t"
1481                                   "a modified partition being busy "
1482                                   "and in use.  You may need to reboot\n\t"
1483                                   "to re-read your partition table.\n"
1484                                   ));
1485                                 exit(1);
1486                         }
1487                         ext2fs_blocks_count_set(&fs_param, dev_size);
1488                         if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param)) {
1489                                 blk64_t tmp = ext2fs_blocks_count(&fs_param);
1490
1491                                 tmp &= ~((blk64_t) ((sys_page_size /
1492                                              EXT2_BLOCK_SIZE(&fs_param))-1));
1493                                 ext2fs_blocks_count_set(&fs_param, tmp);
1494                         }
1495                 }
1496         } else if (!force && (ext2fs_blocks_count(&fs_param) > dev_size)) {
1497                 com_err(program_name, 0,
1498                         _("Filesystem larger than apparent device size."));
1499                 proceed_question();
1500         }
1501
1502         fs_types = parse_fs_type(fs_type, usage_types, &fs_param, argv[0]);
1503         if (!fs_types) {
1504                 fprintf(stderr, _("Failed to parse fs types list\n"));
1505                 exit(1);
1506         }
1507
1508         /* Figure out what features should be enabled */
1509
1510         tmp = NULL;
1511         if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) {
1512                 tmp = get_string_from_profile(fs_types, "base_features",
1513                       "sparse_super,filetype,resize_inode,dir_index");
1514                 edit_feature(tmp, &fs_param.s_feature_compat);
1515                 free(tmp);
1516
1517                 for (cpp = fs_types; *cpp; cpp++) {
1518                         tmp = NULL;
1519                         profile_get_string(profile, "fs_types", *cpp,
1520                                            "features", "", &tmp);
1521                         if (tmp && *tmp)
1522                                 edit_feature(tmp, &fs_param.s_feature_compat);
1523                         free(tmp);
1524                 }
1525                 tmp = get_string_from_profile(fs_types, "default_features",
1526                                               "");
1527         }
1528         edit_feature(fs_features ? fs_features : tmp,
1529                      &fs_param.s_feature_compat);
1530         free(tmp);
1531
1532         if (fs_param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
1533                 fs_types[0] = strdup("journal");
1534                 fs_types[1] = 0;
1535         }
1536
1537         if (verbose) {
1538                 fputs(_("fs_types for mke2fs.conf resolution: "), stdout);
1539                 print_str_list(fs_types);
1540         }
1541
1542         if (r_opt == EXT2_GOOD_OLD_REV &&
1543             (fs_param.s_feature_compat || fs_param.s_feature_incompat ||
1544              fs_param.s_feature_ro_compat)) {
1545                 fprintf(stderr, _("Filesystem features not supported "
1546                                   "with revision 0 filesystems\n"));
1547                 exit(1);
1548         }
1549
1550         if (s_opt > 0) {
1551                 if (r_opt == EXT2_GOOD_OLD_REV) {
1552                         fprintf(stderr, _("Sparse superblocks not supported "
1553                                   "with revision 0 filesystems\n"));
1554                         exit(1);
1555                 }
1556                 fs_param.s_feature_ro_compat |=
1557                         EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
1558         } else if (s_opt == 0)
1559                 fs_param.s_feature_ro_compat &=
1560                         ~EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
1561
1562         if (journal_size != 0) {
1563                 if (r_opt == EXT2_GOOD_OLD_REV) {
1564                         fprintf(stderr, _("Journals not supported "
1565                                   "with revision 0 filesystems\n"));
1566                         exit(1);
1567                 }
1568                 fs_param.s_feature_compat |=
1569                         EXT3_FEATURE_COMPAT_HAS_JOURNAL;
1570         }
1571
1572         if (fs_param.s_feature_incompat &
1573             EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
1574                 reserved_ratio = 0;
1575                 fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
1576                 fs_param.s_feature_compat = 0;
1577                 fs_param.s_feature_ro_compat = 0;
1578         }
1579
1580         if ((fs_param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) &&
1581             (fs_param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE)) {
1582                 fprintf(stderr, _("The resize_inode and meta_bg features "
1583                                   "are not compatible.\n"
1584                                   "They can not be both enabled "
1585                                   "simultaneously.\n"));
1586                 exit(1);
1587         }
1588
1589         /* Set first meta blockgroup via an environment variable */
1590         /* (this is mostly for debugging purposes) */
1591         if ((fs_param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) &&
1592             ((tmp = getenv("MKE2FS_FIRST_META_BG"))))
1593                 fs_param.s_first_meta_bg = atoi(tmp);
1594
1595         /* Get the hardware sector sizes, if available */
1596         retval = ext2fs_get_device_sectsize(device_name, &lsector_size);
1597         if (retval) {
1598                 com_err(program_name, retval,
1599                         _("while trying to determine hardware sector size"));
1600                 exit(1);
1601         }
1602         retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size);
1603         if (retval) {
1604                 com_err(program_name, retval,
1605                         _("while trying to determine physical sector size"));
1606                 exit(1);
1607         }
1608         /* Older kernels may not have physical/logical distinction */
1609         if (!psector_size)
1610                 psector_size = lsector_size;
1611
1612         if ((tmp = getenv("MKE2FS_DEVICE_SECTSIZE")) != NULL)
1613                 psector_size = atoi(tmp);
1614
1615         if (blocksize <= 0) {
1616                 use_bsize = get_int_from_profile(fs_types, "blocksize", 4096);
1617
1618                 if (use_bsize == -1) {
1619                         use_bsize = sys_page_size;
1620                         if ((linux_version_code < (2*65536 + 6*256)) &&
1621                             (use_bsize > 4096))
1622                                 use_bsize = 4096;
1623                 }
1624                 if (psector_size && use_bsize < psector_size)
1625                         use_bsize = psector_size;
1626                 if ((blocksize < 0) && (use_bsize < (-blocksize)))
1627                         use_bsize = -blocksize;
1628                 blocksize = use_bsize;
1629                 ext2fs_blocks_count_set(&fs_param,
1630                                         ext2fs_blocks_count(&fs_param) /
1631                                         (blocksize / 1024));
1632         } else {
1633                 if (blocksize < lsector_size ||                 /* Impossible */
1634                     (!force && (blocksize < psector_size))) {   /* Suboptimal */
1635                         com_err(program_name, EINVAL,
1636                                 _("while setting blocksize; too small "
1637                                   "for device\n"));
1638                         exit(1);
1639                 } else if (blocksize < psector_size) {
1640                         fprintf(stderr, _("Warning: specified blocksize %d is "
1641                                 "less than device physical sectorsize %d, "
1642                                 "forced to continue\n"), blocksize,
1643                                 psector_size);
1644                 }
1645         }
1646
1647         if (inode_ratio == 0) {
1648                 inode_ratio = get_int_from_profile(fs_types, "inode_ratio",
1649                                                    8192);
1650                 if (inode_ratio < blocksize)
1651                         inode_ratio = blocksize;
1652         }
1653
1654         fs_param.s_log_frag_size = fs_param.s_log_block_size =
1655                 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1656
1657 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1658         retval = ext2fs_get_device_geometry(device_name, &fs_param);
1659         if (retval < 0) {
1660                 fprintf(stderr,
1661                         _("warning: Unable to get device geometry for %s\n"),
1662                         device_name);
1663         } else if (retval) {
1664                 printf(_("%s alignment is offset by %lu bytes.\n"),
1665                        device_name, retval);
1666                 printf(_("This may result in very poor performance, "
1667                           "(re)-partitioning suggested.\n"));
1668         }
1669 #endif
1670
1671         blocksize = EXT2_BLOCK_SIZE(&fs_param);
1672
1673         lazy_itable_init = get_bool_from_profile(fs_types,
1674                                                  "lazy_itable_init", 0);
1675
1676         /* Get options from profile */
1677         for (cpp = fs_types; *cpp; cpp++) {
1678                 tmp = NULL;
1679                 profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp);
1680                         if (tmp && *tmp)
1681                                 parse_extended_opts(&fs_param, tmp);
1682                         free(tmp);
1683         }
1684
1685         if (extended_opts)
1686                 parse_extended_opts(&fs_param, extended_opts);
1687
1688         /* Since sparse_super is the default, we would only have a problem
1689          * here if it was explicitly disabled.
1690          */
1691         if ((fs_param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE) &&
1692             !(fs_param.s_feature_ro_compat&EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)) {
1693                 com_err(program_name, 0,
1694                         _("reserved online resize blocks not supported "
1695                           "on non-sparse filesystem"));
1696                 exit(1);
1697         }
1698
1699         if (fs_param.s_blocks_per_group) {
1700                 if (fs_param.s_blocks_per_group < 256 ||
1701                     fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) {
1702                         com_err(program_name, 0,
1703                                 _("blocks per group count out of range"));
1704                         exit(1);
1705                 }
1706         }
1707
1708         if (inode_size == 0)
1709                 inode_size = get_int_from_profile(fs_types, "inode_size", 0);
1710         if (!flex_bg_size && (fs_param.s_feature_incompat &
1711                               EXT4_FEATURE_INCOMPAT_FLEX_BG))
1712                 flex_bg_size = get_int_from_profile(fs_types,
1713                                                     "flex_bg_size", 16);
1714         if (flex_bg_size) {
1715                 if (!(fs_param.s_feature_incompat &
1716                       EXT4_FEATURE_INCOMPAT_FLEX_BG)) {
1717                         com_err(program_name, 0,
1718                                 _("Flex_bg feature not enabled, so "
1719                                   "flex_bg size may not be specified"));
1720                         exit(1);
1721                 }
1722                 fs_param.s_log_groups_per_flex = int_log2(flex_bg_size);
1723         }
1724
1725         if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) {
1726                 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
1727                     inode_size > EXT2_BLOCK_SIZE(&fs_param) ||
1728                     inode_size & (inode_size - 1)) {
1729                         com_err(program_name, 0,
1730                                 _("invalid inode size %d (min %d/max %d)"),
1731                                 inode_size, EXT2_GOOD_OLD_INODE_SIZE,
1732                                 blocksize);
1733                         exit(1);
1734                 }
1735                 fs_param.s_inode_size = inode_size;
1736         }
1737
1738         /* Make sure number of inodes specified will fit in 32 bits */
1739         if (num_inodes == 0) {
1740                 unsigned long long n;
1741                 n = ext2fs_blocks_count(&fs_param) * blocksize / inode_ratio;
1742                 if (n > ~0U) {
1743                         com_err(program_name, 0,
1744                             _("too many inodes (%llu), raise inode ratio?"), n);
1745                         exit(1);
1746                 }
1747         } else if (num_inodes > ~0U) {
1748                 com_err(program_name, 0,
1749                         _("too many inodes (%llu), specify < 2^32 inodes"),
1750                           num_inodes);
1751                 exit(1);
1752         }
1753         /*
1754          * Calculate number of inodes based on the inode ratio
1755          */
1756         fs_param.s_inodes_count = num_inodes ? num_inodes :
1757                 (ext2fs_blocks_count(&fs_param) * blocksize) / inode_ratio;
1758
1759         if ((((long long)fs_param.s_inodes_count) *
1760              (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >=
1761             ((ext2fs_blocks_count(&fs_param)) *
1762              EXT2_BLOCK_SIZE(&fs_param))) {
1763                 com_err(program_name, 0, _("inode_size (%u) * inodes_count "
1764                                           "(%u) too big for a\n\t"
1765                                           "filesystem with %llu blocks, "
1766                                           "specify higher inode_ratio (-i)\n\t"
1767                                           "or lower inode count (-N).\n"),
1768                         inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE,
1769                         fs_param.s_inodes_count,
1770                         (unsigned long long) ext2fs_blocks_count(&fs_param));
1771                 exit(1);
1772         }
1773
1774         /*
1775          * Calculate number of blocks to reserve
1776          */
1777         ext2fs_r_blocks_count_set(&fs_param, reserved_ratio *
1778                                   ext2fs_blocks_count(&fs_param) / 100.0);
1779 }
1780
1781 static int should_do_undo(const char *name)
1782 {
1783         errcode_t retval;
1784         io_channel channel;
1785         __u16   s_magic;
1786         struct ext2_super_block super;
1787         io_manager manager = unix_io_manager;
1788         int csum_flag, force_undo;
1789
1790         csum_flag = EXT2_HAS_RO_COMPAT_FEATURE(&fs_param,
1791                                                EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
1792         force_undo = get_int_from_profile(fs_types, "force_undo", 0);
1793         if (!force_undo && (!csum_flag || !lazy_itable_init))
1794                 return 0;
1795
1796         retval = manager->open(name, IO_FLAG_EXCLUSIVE,  &channel);
1797         if (retval) {
1798                 /*
1799                  * We don't handle error cases instead we
1800                  * declare that the file system doesn't exist
1801                  * and let the rest of mke2fs take care of
1802                  * error
1803                  */
1804                 retval = 0;
1805                 goto open_err_out;
1806         }
1807
1808         io_channel_set_blksize(channel, SUPERBLOCK_OFFSET);
1809         retval = io_channel_read_blk64(channel, 1, -SUPERBLOCK_SIZE, &super);
1810         if (retval) {
1811                 retval = 0;
1812                 goto err_out;
1813         }
1814
1815 #if defined(WORDS_BIGENDIAN)
1816         s_magic = ext2fs_swab16(super.s_magic);
1817 #else
1818         s_magic = super.s_magic;
1819 #endif
1820
1821         if (s_magic == EXT2_SUPER_MAGIC)
1822                 retval = 1;
1823
1824 err_out:
1825         io_channel_close(channel);
1826
1827 open_err_out:
1828
1829         return retval;
1830 }
1831
1832 static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr)
1833 {
1834         errcode_t retval = 0;
1835         char *tdb_dir, *tdb_file;
1836         char *device_name, *tmp_name;
1837
1838         /*
1839          * Configuration via a conf file would be
1840          * nice
1841          */
1842         tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
1843         if (!tdb_dir)
1844                 profile_get_string(profile, "defaults",
1845                                    "undo_dir", 0, "/var/lib/e2fsprogs",
1846                                    &tdb_dir);
1847
1848         if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
1849             access(tdb_dir, W_OK))
1850                 return 0;
1851
1852         tmp_name = strdup(name);
1853         if (!tmp_name) {
1854         alloc_fn_fail:
1855                 com_err(program_name, ENOMEM,
1856                         _("Couldn't allocate memory for tdb filename\n"));
1857                 return ENOMEM;
1858         }
1859         device_name = basename(tmp_name);
1860         tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(device_name) + 7 + 1);
1861         if (!tdb_file)
1862                 goto alloc_fn_fail;
1863         sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, device_name);
1864
1865         if (!access(tdb_file, F_OK)) {
1866                 if (unlink(tdb_file) < 0) {
1867                         retval = errno;
1868                         com_err(program_name, retval,
1869                                 _("while trying to delete %s"),
1870                                 tdb_file);
1871                         free(tdb_file);
1872                         return retval;
1873                 }
1874         }
1875
1876         set_undo_io_backing_manager(*io_ptr);
1877         *io_ptr = undo_io_manager;
1878         set_undo_io_backup_file(tdb_file);
1879         printf(_("Overwriting existing filesystem; this can be undone "
1880                  "using the command:\n"
1881                  "    e2undo %s %s\n\n"), tdb_file, name);
1882
1883         free(tdb_file);
1884         free(tmp_name);
1885         return retval;
1886 }
1887
1888 #ifdef __linux__
1889
1890 #ifndef BLKDISCARD
1891 #define BLKDISCARD      _IO(0x12,119)
1892 #endif
1893
1894 static void mke2fs_discard_blocks(ext2_filsys fs)
1895 {
1896         int fd;
1897         int ret;
1898         int blocksize;
1899         __u64 blocks;
1900         __uint64_t range[2];
1901
1902         blocks = ext2fs_blocks_count(fs->super);
1903         blocksize = EXT2_BLOCK_SIZE(fs->super);
1904         range[0] = 0;
1905         range[1] = blocks * blocksize;
1906
1907         fd = open64(fs->device_name, O_RDWR);
1908
1909         /*
1910          * We don't care about whether the ioctl succeeds; it's only an
1911          * optmization for SSDs or sparse storage.
1912          */
1913         if (fd > 0) {
1914                 ret = ioctl(fd, BLKDISCARD, &range);
1915                 if (verbose) {
1916                         printf(_("Calling BLKDISCARD from %llu to %llu "),
1917                                (unsigned long long) range[0],
1918                                (unsigned long long) range[1]);
1919                         if (ret)
1920                                 printf(_("failed.\n"));
1921                         else
1922                                 printf(_("succeeded.\n"));
1923                 }
1924                 close(fd);
1925         }
1926 }
1927 #else
1928 #define mke2fs_discard_blocks(fs)
1929 #endif
1930
1931 int main (int argc, char *argv[])
1932 {
1933         errcode_t       retval = 0;
1934         ext2_filsys     fs;
1935         badblocks_list  bb_list = 0;
1936         unsigned int    journal_blocks;
1937         unsigned int    i;
1938         int             val, hash_alg;
1939         int             flags;
1940         int             old_bitmaps;
1941         io_manager      io_ptr;
1942         char            tdb_string[40];
1943         char            *hash_alg_str;
1944
1945 #ifdef ENABLE_NLS
1946         setlocale(LC_MESSAGES, "");
1947         setlocale(LC_CTYPE, "");
1948         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
1949         textdomain(NLS_CAT_NAME);
1950 #endif
1951         PRS(argc, argv);
1952
1953 #ifdef CONFIG_TESTIO_DEBUG
1954         if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1955                 io_ptr = test_io_manager;
1956                 test_io_backing_manager = unix_io_manager;
1957         } else
1958 #endif
1959                 io_ptr = unix_io_manager;
1960
1961         if (should_do_undo(device_name)) {
1962                 retval = mke2fs_setup_tdb(device_name, &io_ptr);
1963                 if (retval)
1964                         exit(1);
1965         }
1966
1967         /*
1968          * Initialize the superblock....
1969          */
1970         flags = EXT2_FLAG_EXCLUSIVE;
1971         profile_get_boolean(profile, "options", "old_bitmaps", 0, 0,
1972                             &old_bitmaps);
1973         if (!old_bitmaps)
1974                 flags |= EXT2_FLAG_64BITS;
1975         /*
1976          * By default, we print how many inode tables or block groups
1977          * or whatever we've written so far.  The quiet flag disables
1978          * this, along with a lot of other output.
1979          */
1980         if (!quiet)
1981                 flags |= EXT2_FLAG_PRINT_PROGRESS;
1982         retval = ext2fs_initialize(device_name, flags, &fs_param, io_ptr, &fs);
1983         if (retval) {
1984                 com_err(device_name, retval, _("while setting up superblock"));
1985                 exit(1);
1986         }
1987
1988         /* Can't undo discard ... */
1989         if (discard && (io_ptr != undo_io_manager))
1990                 mke2fs_discard_blocks(fs);
1991
1992         sprintf(tdb_string, "tdb_data_size=%d", fs->blocksize <= 4096 ?
1993                 32768 : fs->blocksize * 8);
1994         io_channel_set_options(fs->io, tdb_string);
1995
1996         if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS)
1997                 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
1998
1999         if ((fs_param.s_feature_incompat &
2000              (EXT3_FEATURE_INCOMPAT_EXTENTS|EXT4_FEATURE_INCOMPAT_FLEX_BG)) ||
2001             (fs_param.s_feature_ro_compat &
2002              (EXT4_FEATURE_RO_COMPAT_HUGE_FILE|EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
2003               EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
2004               EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE)))
2005                 fs->super->s_kbytes_written = 1;
2006
2007         /*
2008          * Wipe out the old on-disk superblock
2009          */
2010         if (!noaction)
2011                 zap_sector(fs, 2, 6);
2012
2013         /*
2014          * Parse or generate a UUID for the filesystem
2015          */
2016         if (fs_uuid) {
2017                 if (uuid_parse(fs_uuid, fs->super->s_uuid) !=0) {
2018                         com_err(device_name, 0, "could not parse UUID: %s\n",
2019                                 fs_uuid);
2020                         exit(1);
2021                 }
2022         } else
2023                 uuid_generate(fs->super->s_uuid);
2024
2025         /*
2026          * Initialize the directory index variables
2027          */
2028         hash_alg_str = get_string_from_profile(fs_types, "hash_alg",
2029                                                "half_md4");
2030         hash_alg = e2p_string2hash(hash_alg_str);
2031         fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg :
2032                 EXT2_HASH_HALF_MD4;
2033         uuid_generate((unsigned char *) fs->super->s_hash_seed);
2034
2035         /*
2036          * Add "jitter" to the superblock's check interval so that we
2037          * don't check all the filesystems at the same time.  We use a
2038          * kludgy hack of using the UUID to derive a random jitter value.
2039          */
2040         for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++)
2041                 val += fs->super->s_uuid[i];
2042         fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
2043
2044         /*
2045          * Override the creator OS, if applicable
2046          */
2047         if (creator_os && !set_os(fs->super, creator_os)) {
2048                 com_err (program_name, 0, _("unknown os - %s"), creator_os);
2049                 exit(1);
2050         }
2051
2052         /*
2053          * For the Hurd, we will turn off filetype since it doesn't
2054          * support it.
2055          */
2056         if (fs->super->s_creator_os == EXT2_OS_HURD)
2057                 fs->super->s_feature_incompat &=
2058                         ~EXT2_FEATURE_INCOMPAT_FILETYPE;
2059
2060         /*
2061          * Set the volume label...
2062          */
2063         if (volume_label) {
2064                 memset(fs->super->s_volume_name, 0,
2065                        sizeof(fs->super->s_volume_name));
2066                 strncpy(fs->super->s_volume_name, volume_label,
2067                         sizeof(fs->super->s_volume_name));
2068         }
2069
2070         /*
2071          * Set the last mount directory
2072          */
2073         if (mount_dir) {
2074                 memset(fs->super->s_last_mounted, 0,
2075                        sizeof(fs->super->s_last_mounted));
2076                 strncpy(fs->super->s_last_mounted, mount_dir,
2077                         sizeof(fs->super->s_last_mounted));
2078         }
2079
2080         if (!quiet || noaction)
2081                 show_stats(fs);
2082
2083         if (noaction)
2084                 exit(0);
2085
2086         if (fs->super->s_feature_incompat &
2087             EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
2088                 create_journal_dev(fs);
2089                 exit(ext2fs_close(fs) ? 1 : 0);
2090         }
2091
2092         if (bad_blocks_filename)
2093                 read_bb_file(fs, &bb_list, bad_blocks_filename);
2094         if (cflag)
2095                 test_disk(fs, &bb_list);
2096
2097         handle_bad_blocks(fs, bb_list);
2098         fs->stride = fs_stride = fs->super->s_raid_stride;
2099         if (!quiet)
2100                 printf(_("Allocating group tables: "));
2101         retval = ext2fs_allocate_tables(fs);
2102         if (retval) {
2103                 com_err(program_name, retval,
2104                         _("while trying to allocate filesystem tables"));
2105                 exit(1);
2106         }
2107         if (!quiet)
2108                 printf(_("done                            \n"));
2109         if (super_only) {
2110                 fs->super->s_state |= EXT2_ERROR_FS;
2111                 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
2112         } else {
2113                 /* rsv must be a power of two (64kB is MD RAID sb alignment) */
2114                 unsigned int rsv = 65536 / fs->blocksize;
2115                 unsigned long blocks = ext2fs_blocks_count(fs->super);
2116                 unsigned long start;
2117                 blk_t ret_blk;
2118
2119 #ifdef ZAP_BOOTBLOCK
2120                 zap_sector(fs, 0, 2);
2121 #endif
2122
2123                 /*
2124                  * Wipe out any old MD RAID (or other) metadata at the end
2125                  * of the device.  This will also verify that the device is
2126                  * as large as we think.  Be careful with very small devices.
2127                  */
2128                 start = (blocks & ~(rsv - 1));
2129                 if (start > rsv)
2130                         start -= rsv;
2131                 if (start > 0)
2132                         retval = ext2fs_zero_blocks(fs, start, blocks - start,
2133                                                     &ret_blk, NULL);
2134
2135                 if (retval) {
2136                         com_err(program_name, retval,
2137                                 _("while zeroing block %u at end of filesystem"),
2138                                 ret_blk);
2139                 }
2140                 write_inode_tables(fs, lazy_itable_init);
2141                 create_root_dir(fs);
2142                 create_lost_and_found(fs);
2143                 reserve_inodes(fs);
2144                 create_bad_block_inode(fs, bb_list);
2145                 if (fs->super->s_feature_compat &
2146                     EXT2_FEATURE_COMPAT_RESIZE_INODE) {
2147                         retval = ext2fs_create_resize_inode(fs);
2148                         if (retval) {
2149                                 com_err("ext2fs_create_resize_inode", retval,
2150                                 _("while reserving blocks for online resize"));
2151                                 exit(1);
2152                         }
2153                 }
2154         }
2155
2156         if (journal_device) {
2157                 ext2_filsys     jfs;
2158
2159                 if (!force)
2160                         check_plausibility(journal_device);
2161                 check_mount(journal_device, force, _("journal"));
2162
2163                 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
2164                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
2165                                      fs->blocksize, unix_io_manager, &jfs);
2166                 if (retval) {
2167                         com_err(program_name, retval,
2168                                 _("while trying to open journal device %s\n"),
2169                                 journal_device);
2170                         exit(1);
2171                 }
2172                 if (!quiet) {
2173                         printf(_("Adding journal to device %s: "),
2174                                journal_device);
2175                         fflush(stdout);
2176                 }
2177                 retval = ext2fs_add_journal_device(fs, jfs);
2178                 if(retval) {
2179                         com_err (program_name, retval,
2180                                  _("\n\twhile trying to add journal to device %s"),
2181                                  journal_device);
2182                         exit(1);
2183                 }
2184                 if (!quiet)
2185                         printf(_("done\n"));
2186                 ext2fs_close(jfs);
2187                 free(journal_device);
2188         } else if ((journal_size) ||
2189                    (fs_param.s_feature_compat &
2190                     EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
2191                 journal_blocks = figure_journal_size(journal_size, fs);
2192
2193                 if (super_only) {
2194                         printf(_("Skipping journal creation in super-only mode\n"));
2195                         fs->super->s_journal_inum = EXT2_JOURNAL_INO;
2196                         goto no_journal;
2197                 }
2198
2199                 if (!journal_blocks) {
2200                         fs->super->s_feature_compat &=
2201                                 ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
2202                         goto no_journal;
2203                 }
2204                 if (!quiet) {
2205                         printf(_("Creating journal (%u blocks): "),
2206                                journal_blocks);
2207                         fflush(stdout);
2208                 }
2209                 retval = ext2fs_add_journal_inode(fs, journal_blocks,
2210                                                   journal_flags);
2211                 if (retval) {
2212                         com_err (program_name, retval,
2213                                  _("\n\twhile trying to create journal"));
2214                         exit(1);
2215                 }
2216                 if (!quiet)
2217                         printf(_("done\n"));
2218         }
2219 no_journal:
2220
2221         if (!quiet)
2222                 printf(_("Writing superblocks and "
2223                        "filesystem accounting information: "));
2224         retval = ext2fs_flush(fs);
2225         if (retval) {
2226                 fprintf(stderr,
2227                         _("\nWarning, had trouble writing out superblocks."));
2228         }
2229         if (!quiet) {
2230                 printf(_("done\n\n"));
2231                 if (!getenv("MKE2FS_SKIP_CHECK_MSG"))
2232                         print_check_message(fs);
2233         }
2234         val = ext2fs_close(fs);
2235         remove_error_table(&et_ext2_error_table);
2236         remove_error_table(&et_prof_error_table);
2237         profile_release(profile);
2238         return (retval || val) ? 1 : 0;
2239 }