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 "config.h"
  22 #include <stdio.h>
  23 #include <string.h>
  24 #include <strings.h>
  25 #include <fcntl.h>
  26 #include <ctype.h>
  27 #include <time.h>
  28 #ifdef __linux__
  29 #include <sys/utsname.h>
  30 #endif
  31 #ifdef HAVE_GETOPT_H
  32 #include <getopt.h>
  33 #else
  34 extern char *optarg;
  35 extern int optind;
  36 #endif
  37 #ifdef HAVE_UNISTD_H
  38 #include <unistd.h>
  39 #endif
  40 #ifdef HAVE_STDLIB_H
  41 #include <stdlib.h>
  42 #endif
  43 #ifdef HAVE_ERRNO_H
  44 #include <errno.h>
  45 #endif
  46 #include <sys/ioctl.h>
  47 #include <sys/types.h>
  48 #include <sys/stat.h>
  49 #include <libgen.h>
  50 #include <limits.h>
  51 #include <blkid/blkid.h>
  52
  53 #include "ext2fs/ext2_fs.h"
  54 #include "ext2fs/ext2fsP.h"
  55 #include "et/com_err.h"
  56 #include "uuid/uuid.h"
  57 #include "e2p/e2p.h"
  58 #include "ext2fs/ext2fs.h"
  59 #include "util.h"
  60 #include "profile.h"
  61 #include "prof_err.h"
  62 #include "../version.h"
  63 #include "nls-enable.h"
  64 #include "quota/mkquota.h"
  65
  66 #define STRIDE_LENGTH 8
  67
  68 #define MAX_32_NUM ((((unsigned long long) 1) << 32) - 1)
  69
  70 #ifndef __sparc__
  71 #define ZAP_BOOTBLOCK
  72 #endif
  73
  74 #define DISCARD_STEP_MB         (2048)
  75
  76 extern int isatty(int);
  77 extern FILE *fpopen(const char *cmd, const char *mode);
  78
  79 const char * program_name = "mke2fs";
  80 const char * device_name /* = NULL */;
  81
  82 /* Command line options */
  83 int     cflag;
  84 int     verbose;
  85 int     quiet;
  86 int     super_only;
  87 int     discard = 1;    /* attempt to discard device before fs creation */
  88 int     direct_io;
  89 int     force;
  90 int     noaction;
  91 int     journal_size;
  92 int     journal_flags;
  93 int     lazy_itable_init;
  94 char    *bad_blocks_filename;
  95 __u32   fs_stride;
  96 int     quotatype = -1;  /* Initialize both user and group quotas by default */
  97
  98 struct ext2_super_block fs_param;
  99 char *fs_uuid = NULL;
 100 char *creator_os;
 101 char *volume_label;
 102 char *mount_dir;
 103 char *journal_device;
 104 int sync_kludge;        /* Set using the MKE2FS_SYNC env. option */
 105 char **fs_types;
 106
 107 profile_t       profile;
 108
 109 int sys_page_size = 4096;
 110 int linux_version_code = 0;
 111
 112 static void usage(void)
 113 {
 114         fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] "
 115         "[-C cluster-size]\n\t[-i bytes-per-inode] [-I inode-size] "
 116         "[-J journal-options]\n"
 117         "\t[-G flex-group-size] [-N number-of-inodes]\n"
 118         "\t[-m reserved-blocks-percentage] [-o creator-os]\n"
 119         "\t[-g blocks-per-group] [-L volume-label] "
 120         "[-M last-mounted-directory]\n\t[-O feature[,...]] "
 121         "[-r fs-revision] [-E extended-option[,...]]\n"
 122         "\t[-t fs-type] [-T usage-type ] [-U UUID] "
 123         "[-jnqvDFKSV] device [blocks-count]\n"),
 124                 program_name);
 125         exit(1);
 126 }
 127
 128 static int int_log2(unsigned long long arg)
 129 {
 130         int     l = 0;
 131
 132         arg >>= 1;
 133         while (arg) {
 134                 l++;
 135                 arg >>= 1;
 136         }
 137         return l;
 138 }
 139
 140 static int int_log10(unsigned long long arg)
 141 {
 142         int     l;
 143
 144         for (l=0; arg ; l++)
 145                 arg = arg / 10;
 146         return l;
 147 }
 148
 149 #ifdef __linux__
 150 static int parse_version_number(const char *s)
 151 {
 152         int     major, minor, rev;
 153         char    *endptr;
 154         const char *cp = s;
 155
 156         if (!s)
 157                 return 0;
 158         major = strtol(cp, &endptr, 10);
 159         if (cp == endptr || *endptr != '.')
 160                 return 0;
 161         cp = endptr + 1;
 162         minor = strtol(cp, &endptr, 10);
 163         if (cp == endptr || *endptr != '.')
 164                 return 0;
 165         cp = endptr + 1;
 166         rev = strtol(cp, &endptr, 10);
 167         if (cp == endptr)
 168                 return 0;
 169         return ((((major * 256) + minor) * 256) + rev);
 170 }
 171 #endif
 172
 173 /*
 174  * Helper function for read_bb_file and test_disk
 175  */
 176 static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk)
 177 {
 178         fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk);
 179         return;
 180 }
 181
 182 /*
 183  * Reads the bad blocks list from a file
 184  */
 185 static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list,
 186                          const char *bad_blocks_file)
 187 {
 188         FILE            *f;
 189         errcode_t       retval;
 190
 191         f = fopen(bad_blocks_file, "r");
 192         if (!f) {
 193                 com_err("read_bad_blocks_file", errno,
 194                         _("while trying to open %s"), bad_blocks_file);
 195                 exit(1);
 196         }
 197         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
 198         fclose (f);
 199         if (retval) {
 200                 com_err("ext2fs_read_bb_FILE", retval,
 201                         _("while reading in list of bad blocks from file"));
 202                 exit(1);
 203         }
 204 }
 205
 206 /*
 207  * Runs the badblocks program to test the disk
 208  */
 209 static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
 210 {
 211         FILE            *f;
 212         errcode_t       retval;
 213         char            buf[1024];
 214
 215         sprintf(buf, "badblocks -b %d -X %s%s%s %llu", fs->blocksize,
 216                 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "",
 217                 fs->device_name, ext2fs_blocks_count(fs->super)-1);
 218         if (verbose)
 219                 printf(_("Running command: %s\n"), buf);
 220         f = popen(buf, "r");
 221         if (!f) {
 222                 com_err("popen", errno,
 223                         _("while trying to run '%s'"), buf);
 224                 exit(1);
 225         }
 226         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
 227         pclose(f);
 228         if (retval) {
 229                 com_err("ext2fs_read_bb_FILE", retval,
 230                         _("while processing list of bad blocks from program"));
 231                 exit(1);
 232         }
 233 }
 234
 235 static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
 236 {
 237         dgrp_t                  i;
 238         blk_t                   j;
 239         unsigned                must_be_good;
 240         blk_t                   blk;
 241         badblocks_iterate       bb_iter;
 242         errcode_t               retval;
 243         blk_t                   group_block;
 244         int                     group;
 245         int                     group_bad;
 246
 247         if (!bb_list)
 248                 return;
 249
 250         /*
 251          * The primary superblock and group descriptors *must* be
 252          * good; if not, abort.
 253          */
 254         must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
 255         for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
 256                 if (ext2fs_badblocks_list_test(bb_list, i)) {
 257                         fprintf(stderr, _("Block %d in primary "
 258                                 "superblock/group descriptor area bad.\n"), i);
 259                         fprintf(stderr, _("Blocks %u through %u must be good "
 260                                 "in order to build a filesystem.\n"),
 261                                 fs->super->s_first_data_block, must_be_good);
 262                         fputs(_("Aborting....\n"), stderr);
 263                         exit(1);
 264                 }
 265         }
 266
 267         /*
 268          * See if any of the bad blocks are showing up in the backup
 269          * superblocks and/or group descriptors.  If so, issue a
 270          * warning and adjust the block counts appropriately.
 271          */
 272         group_block = fs->super->s_first_data_block +
 273                 fs->super->s_blocks_per_group;
 274
 275         for (i = 1; i < fs->group_desc_count; i++) {
 276                 group_bad = 0;
 277                 for (j=0; j < fs->desc_blocks+1; j++) {
 278                         if (ext2fs_badblocks_list_test(bb_list,
 279                                                        group_block + j)) {
 280                                 if (!group_bad)
 281                                         fprintf(stderr,
 282 _("Warning: the backup superblock/group descriptors at block %u contain\n"
 283 "       bad blocks.\n\n"),
 284                                                 group_block);
 285                                 group_bad++;
 286                                 group = ext2fs_group_of_blk2(fs, group_block+j);
 287                                 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
 288                                 ext2fs_group_desc_csum_set(fs, group);
 289                                 ext2fs_free_blocks_count_add(fs->super, 1);
 290                         }
 291                 }
 292                 group_block += fs->super->s_blocks_per_group;
 293         }
 294
 295         /*
 296          * Mark all the bad blocks as used...
 297          */
 298         retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
 299         if (retval) {
 300                 com_err("ext2fs_badblocks_list_iterate_begin", retval,
 301                         _("while marking bad blocks as used"));
 302                 exit(1);
 303         }
 304         while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
 305                 ext2fs_mark_block_bitmap2(fs->block_map, EXT2FS_B2C(fs, blk));
 306         ext2fs_badblocks_list_iterate_end(bb_iter);
 307 }
 308
 309 static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed)
 310 {
 311         errcode_t       retval;
 312         blk64_t         blk;
 313         dgrp_t          i;
 314         int             num;
 315         struct ext2fs_numeric_progress_struct progress;
 316
 317         ext2fs_numeric_progress_init(fs, &progress,
 318                                      _("Writing inode tables: "),
 319                                      fs->group_desc_count);
 320
 321         for (i = 0; i < fs->group_desc_count; i++) {
 322                 ext2fs_numeric_progress_update(fs, &progress, i);
 323
 324                 blk = ext2fs_inode_table_loc(fs, i);
 325                 num = fs->inode_blocks_per_group;
 326
 327                 if (lazy_flag)
 328                         num = ext2fs_div_ceil((fs->super->s_inodes_per_group -
 329                                                ext2fs_bg_itable_unused(fs, i)) *
 330                                               EXT2_INODE_SIZE(fs->super),
 331                                               EXT2_BLOCK_SIZE(fs->super));
 332                 if (!lazy_flag || itable_zeroed) {
 333                         /* The kernel doesn't need to zero the itable blocks */
 334                         ext2fs_bg_flags_set(fs, i, EXT2_BG_INODE_ZEROED);
 335                         ext2fs_group_desc_csum_set(fs, i);
 336                 }
 337                 retval = ext2fs_zero_blocks2(fs, blk, num, &blk, &num);
 338                 if (retval) {
 339                         fprintf(stderr, _("\nCould not write %d "
 340                                   "blocks in inode table starting at %llu: %s\n"),
 341                                 num, blk, error_message(retval));
 342                         exit(1);
 343                 }
 344                 if (sync_kludge) {
 345                         if (sync_kludge == 1)
 346                                 sync();
 347                         else if ((i % sync_kludge) == 0)
 348                                 sync();
 349                 }
 350         }
 351         ext2fs_zero_blocks2(0, 0, 0, 0, 0);
 352         ext2fs_numeric_progress_close(fs, &progress,
 353                                       _("done                            \n"));
 354 }
 355
 356 static void create_root_dir(ext2_filsys fs)
 357 {
 358         errcode_t               retval;
 359         struct ext2_inode       inode;
 360         __u32                   uid, gid;
 361
 362         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
 363         if (retval) {
 364                 com_err("ext2fs_mkdir", retval, _("while creating root dir"));
 365                 exit(1);
 366         }
 367         if (geteuid()) {
 368                 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
 369                 if (retval) {
 370                         com_err("ext2fs_read_inode", retval,
 371                                 _("while reading root inode"));
 372                         exit(1);
 373                 }
 374                 uid = getuid();
 375                 inode.i_uid = uid;
 376                 ext2fs_set_i_uid_high(inode, uid >> 16);
 377                 if (uid) {
 378                         gid = getgid();
 379                         inode.i_gid = gid;
 380                         ext2fs_set_i_gid_high(inode, gid >> 16);
 381                 }
 382                 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
 383                 if (retval) {
 384                         com_err("ext2fs_write_inode", retval,
 385                                 _("while setting root inode ownership"));
 386                         exit(1);
 387                 }
 388         }
 389 }
 390
 391 static void create_lost_and_found(ext2_filsys fs)
 392 {
 393         unsigned int            lpf_size = 0;
 394         errcode_t               retval;
 395         ext2_ino_t              ino;
 396         const char              *name = "lost+found";
 397         int                     i;
 398
 399         fs->umask = 077;
 400         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
 401         if (retval) {
 402                 com_err("ext2fs_mkdir", retval,
 403                         _("while creating /lost+found"));
 404                 exit(1);
 405         }
 406
 407         retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
 408         if (retval) {
 409                 com_err("ext2_lookup", retval,
 410                         _("while looking up /lost+found"));
 411                 exit(1);
 412         }
 413
 414         for (i=1; i < EXT2_NDIR_BLOCKS; i++) {
 415                 /* Ensure that lost+found is at least 2 blocks, so we always
 416                  * test large empty blocks for big-block filesystems.  */
 417                 if ((lpf_size += fs->blocksize) >= 16*1024 &&
 418                     lpf_size >= 2 * fs->blocksize)
 419                         break;
 420                 retval = ext2fs_expand_dir(fs, ino);
 421                 if (retval) {
 422                         com_err("ext2fs_expand_dir", retval,
 423                                 _("while expanding /lost+found"));
 424                         exit(1);
 425                 }
 426         }
 427 }
 428
 429 static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
 430 {
 431         errcode_t       retval;
 432
 433         ext2fs_mark_inode_bitmap2(fs->inode_map, EXT2_BAD_INO);
 434         ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0);
 435         retval = ext2fs_update_bb_inode(fs, bb_list);
 436         if (retval) {
 437                 com_err("ext2fs_update_bb_inode", retval,
 438                         _("while setting bad block inode"));
 439                 exit(1);
 440         }
 441
 442 }
 443
 444 static void reserve_inodes(ext2_filsys fs)
 445 {
 446         ext2_ino_t      i;
 447
 448         for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++)
 449                 ext2fs_inode_alloc_stats2(fs, i, +1, 0);
 450         ext2fs_mark_ib_dirty(fs);
 451 }
 452
 453 #define BSD_DISKMAGIC   (0x82564557UL)  /* The disk magic number */
 454 #define BSD_MAGICDISK   (0x57455682UL)  /* The disk magic number reversed */
 455 #define BSD_LABEL_OFFSET        64
 456
 457 static void zap_sector(ext2_filsys fs, int sect, int nsect)
 458 {
 459         char *buf;
 460         int retval;
 461         unsigned int *magic;
 462
 463         buf = malloc(512*nsect);
 464         if (!buf) {
 465                 printf(_("Out of memory erasing sectors %d-%d\n"),
 466                        sect, sect + nsect - 1);
 467                 exit(1);
 468         }
 469
 470         if (sect == 0) {
 471                 /* Check for a BSD disklabel, and don't erase it if so */
 472                 retval = io_channel_read_blk64(fs->io, 0, -512, buf);
 473                 if (retval)
 474                         fprintf(stderr,
 475                                 _("Warning: could not read block 0: %s\n"),
 476                                 error_message(retval));
 477                 else {
 478                         magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);
 479                         if ((*magic == BSD_DISKMAGIC) ||
 480                             (*magic == BSD_MAGICDISK))
 481                                 return;
 482                 }
 483         }
 484
 485         memset(buf, 0, 512*nsect);
 486         io_channel_set_blksize(fs->io, 512);
 487         retval = io_channel_write_blk64(fs->io, sect, -512*nsect, buf);
 488         io_channel_set_blksize(fs->io, fs->blocksize);
 489         free(buf);
 490         if (retval)
 491                 fprintf(stderr, _("Warning: could not erase sector %d: %s\n"),
 492                         sect, error_message(retval));
 493 }
 494
 495 static void create_journal_dev(ext2_filsys fs)
 496 {
 497         struct ext2fs_numeric_progress_struct progress;
 498         errcode_t               retval;
 499         char                    *buf;
 500         blk64_t                 blk, err_blk;
 501         int                     c, count, err_count;
 502
 503         retval = ext2fs_create_journal_superblock(fs,
 504                                   ext2fs_blocks_count(fs->super), 0, &buf);
 505         if (retval) {
 506                 com_err("create_journal_dev", retval,
 507                         _("while initializing journal superblock"));
 508                 exit(1);
 509         }
 510
 511         if (journal_flags & EXT2_MKJOURNAL_LAZYINIT)
 512                 goto write_superblock;
 513
 514         ext2fs_numeric_progress_init(fs, &progress,
 515                                      _("Zeroing journal device: "),
 516                                      ext2fs_blocks_count(fs->super));
 517         blk = 0;
 518         count = ext2fs_blocks_count(fs->super);
 519         while (count > 0) {
 520                 if (count > 1024)
 521                         c = 1024;
 522                 else
 523                         c = count;
 524                 retval = ext2fs_zero_blocks2(fs, blk, c, &err_blk, &err_count);
 525                 if (retval) {
 526                         com_err("create_journal_dev", retval,
 527                                 _("while zeroing journal device "
 528                                   "(block %llu, count %d)"),
 529                                 err_blk, err_count);
 530                         exit(1);
 531                 }
 532                 blk += c;
 533                 count -= c;
 534                 ext2fs_numeric_progress_update(fs, &progress, blk);
 535         }
 536         ext2fs_zero_blocks2(0, 0, 0, 0, 0);
 537
 538         ext2fs_numeric_progress_close(fs, &progress, NULL);
 539 write_superblock:
 540         retval = io_channel_write_blk64(fs->io,
 541                                         fs->super->s_first_data_block+1,
 542                                         1, buf);
 543         if (retval) {
 544                 com_err("create_journal_dev", retval,
 545                         _("while writing journal superblock"));
 546                 exit(1);
 547         }
 548 }
 549
 550 static void show_stats(ext2_filsys fs)
 551 {
 552         struct ext2_super_block *s = fs->super;
 553         char                    buf[80];
 554         char                    *os;
 555         blk64_t                 group_block;
 556         dgrp_t                  i;
 557         int                     need, col_left;
 558
 559         if (ext2fs_blocks_count(&fs_param) != ext2fs_blocks_count(s))
 560                 fprintf(stderr, _("warning: %llu blocks unused.\n\n"),
 561                        ext2fs_blocks_count(&fs_param) - ext2fs_blocks_count(s));
 562
 563         memset(buf, 0, sizeof(buf));
 564         strncpy(buf, s->s_volume_name, sizeof(s->s_volume_name));
 565         printf(_("Filesystem label=%s\n"), buf);
 566         os = e2p_os2string(fs->super->s_creator_os);
 567         if (os)
 568                 printf(_("OS type: %s\n"), os);
 569         free(os);
 570         printf(_("Block size=%u (log=%u)\n"), fs->blocksize,
 571                 s->s_log_block_size);
 572         if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
 573                                        EXT4_FEATURE_RO_COMPAT_BIGALLOC))
 574                 printf(_("Cluster size=%u (log=%u)\n"),
 575                        fs->blocksize << fs->cluster_ratio_bits,
 576                        s->s_log_cluster_size);
 577         else
 578                 printf(_("Fragment size=%u (log=%u)\n"), EXT2_CLUSTER_SIZE(s),
 579                        s->s_log_cluster_size);
 580         printf(_("Stride=%u blocks, Stripe width=%u blocks\n"),
 581                s->s_raid_stride, s->s_raid_stripe_width);
 582         printf(_("%u inodes, %llu blocks\n"), s->s_inodes_count,
 583                ext2fs_blocks_count(s));
 584         printf(_("%llu blocks (%2.2f%%) reserved for the super user\n"),
 585                 ext2fs_r_blocks_count(s),
 586                100.0 *  ext2fs_r_blocks_count(s) / ext2fs_blocks_count(s));
 587         printf(_("First data block=%u\n"), s->s_first_data_block);
 588         if (s->s_reserved_gdt_blocks)
 589                 printf(_("Maximum filesystem blocks=%lu\n"),
 590                        (s->s_reserved_gdt_blocks + fs->desc_blocks) *
 591                        EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group);
 592         if (fs->group_desc_count > 1)
 593                 printf(_("%u block groups\n"), fs->group_desc_count);
 594         else
 595                 printf(_("%u block group\n"), fs->group_desc_count);
 596         if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
 597                                        EXT4_FEATURE_RO_COMPAT_BIGALLOC))
 598                 printf(_("%u blocks per group, %u clusters per group\n"),
 599                        s->s_blocks_per_group, s->s_clusters_per_group);
 600         else
 601                 printf(_("%u blocks per group, %u fragments per group\n"),
 602                        s->s_blocks_per_group, s->s_clusters_per_group);
 603         printf(_("%u inodes per group\n"), s->s_inodes_per_group);
 604
 605         if (fs->group_desc_count == 1) {
 606                 printf("\n");
 607                 return;
 608         }
 609
 610         printf(_("Superblock backups stored on blocks: "));
 611         group_block = s->s_first_data_block;
 612         col_left = 0;
 613         for (i = 1; i < fs->group_desc_count; i++) {
 614                 group_block += s->s_blocks_per_group;
 615                 if (!ext2fs_bg_has_super(fs, i))
 616                         continue;
 617                 if (i != 1)
 618                         printf(", ");
 619                 need = int_log10(group_block) + 2;
 620                 if (need > col_left) {
 621                         printf("\n\t");
 622                         col_left = 72;
 623                 }
 624                 col_left -= need;
 625                 printf("%llu", group_block);
 626         }
 627         printf("\n\n");
 628 }
 629
 630 /*
 631  * Set the S_CREATOR_OS field.  Return true if OS is known,
 632  * otherwise, 0.
 633  */
 634 static int set_os(struct ext2_super_block *sb, char *os)
 635 {
 636         if (isdigit (*os))
 637                 sb->s_creator_os = atoi (os);
 638         else if (strcasecmp(os, "linux") == 0)
 639                 sb->s_creator_os = EXT2_OS_LINUX;
 640         else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0)
 641                 sb->s_creator_os = EXT2_OS_HURD;
 642         else if (strcasecmp(os, "freebsd") == 0)
 643                 sb->s_creator_os = EXT2_OS_FREEBSD;
 644         else if (strcasecmp(os, "lites") == 0)
 645                 sb->s_creator_os = EXT2_OS_LITES;
 646         else
 647                 return 0;
 648         return 1;
 649 }
 650
 651 #define PATH_SET "PATH=/sbin"
 652
 653 static void parse_extended_opts(struct ext2_super_block *param,
 654                                 const char *opts)
 655 {
 656         char    *buf, *token, *next, *p, *arg, *badopt = 0;
 657         int     len;
 658         int     r_usage = 0;
 659
 660         len = strlen(opts);
 661         buf = malloc(len+1);
 662         if (!buf) {
 663                 fprintf(stderr,
 664                         _("Couldn't allocate memory to parse options!\n"));
 665                 exit(1);
 666         }
 667         strcpy(buf, opts);
 668         for (token = buf; token && *token; token = next) {
 669                 p = strchr(token, ',');
 670                 next = 0;
 671                 if (p) {
 672                         *p = 0;
 673                         next = p+1;
 674                 }
 675                 arg = strchr(token, '=');
 676                 if (arg) {
 677                         *arg = 0;
 678                         arg++;
 679                 }
 680                 if (strcmp(token, "mmp_update_interval") == 0) {
 681                         if (!arg) {
 682                                 r_usage++;
 683                                 badopt = token;
 684                                 continue;
 685                         }
 686                         param->s_mmp_update_interval = strtoul(arg, &p, 0);
 687                         if (*p) {
 688                                 fprintf(stderr,
 689                                         _("Invalid mmp_update_interval: %s\n"),
 690                                         arg);
 691                                 r_usage++;
 692                                 continue;
 693                         }
 694                 } else if (strcmp(token, "stride") == 0) {
 695                         if (!arg) {
 696                                 r_usage++;
 697                                 badopt = token;
 698                                 continue;
 699                         }
 700                         param->s_raid_stride = strtoul(arg, &p, 0);
 701                         if (*p) {
 702                                 fprintf(stderr,
 703                                         _("Invalid stride parameter: %s\n"),
 704                                         arg);
 705                                 r_usage++;
 706                                 continue;
 707                         }
 708                 } else if (strcmp(token, "stripe-width") == 0 ||
 709                            strcmp(token, "stripe_width") == 0) {
 710                         if (!arg) {
 711                                 r_usage++;
 712                                 badopt = token;
 713                                 continue;
 714                         }
 715                         param->s_raid_stripe_width = strtoul(arg, &p, 0);
 716                         if (*p) {
 717                                 fprintf(stderr,
 718                                         _("Invalid stripe-width parameter: %s\n"),
 719                                         arg);
 720                                 r_usage++;
 721                                 continue;
 722                         }
 723                 } else if (!strcmp(token, "resize")) {
 724                         blk64_t resize;
 725                         unsigned long bpg, rsv_groups;
 726                         unsigned long group_desc_count, desc_blocks;
 727                         unsigned int gdpb, blocksize;
 728                         int rsv_gdb;
 729
 730                         if (!arg) {
 731                                 r_usage++;
 732                                 badopt = token;
 733                                 continue;
 734                         }
 735
 736                         resize = parse_num_blocks2(arg,
 737                                                    param->s_log_block_size);
 738
 739                         if (resize == 0) {
 740                                 fprintf(stderr,
 741                                         _("Invalid resize parameter: %s\n"),
 742                                         arg);
 743                                 r_usage++;
 744                                 continue;
 745                         }
 746                         if (resize <= ext2fs_blocks_count(param)) {
 747                                 fprintf(stderr,
 748                                         _("The resize maximum must be greater "
 749                                           "than the filesystem size.\n"));
 750                                 r_usage++;
 751                                 continue;
 752                         }
 753
 754                         blocksize = EXT2_BLOCK_SIZE(param);
 755                         bpg = param->s_blocks_per_group;
 756                         if (!bpg)
 757                                 bpg = blocksize * 8;
 758                         gdpb = EXT2_DESC_PER_BLOCK(param);
 759                         group_desc_count = (__u32) ext2fs_div64_ceil(
 760                                 ext2fs_blocks_count(param), bpg);
 761                         desc_blocks = (group_desc_count +
 762                                        gdpb - 1) / gdpb;
 763                         rsv_groups = ext2fs_div64_ceil(resize, bpg);
 764                         rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) -
 765                                 desc_blocks;
 766                         if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param))
 767                                 rsv_gdb = EXT2_ADDR_PER_BLOCK(param);
 768
 769                         if (rsv_gdb > 0) {
 770                                 if (param->s_rev_level == EXT2_GOOD_OLD_REV) {
 771                                         fprintf(stderr,
 772         _("On-line resizing not supported with revision 0 filesystems\n"));
 773                                         free(buf);
 774                                         exit(1);
 775                                 }
 776                                 param->s_feature_compat |=
 777                                         EXT2_FEATURE_COMPAT_RESIZE_INODE;
 778
 779                                 param->s_reserved_gdt_blocks = rsv_gdb;
 780                         }
 781                 } else if (!strcmp(token, "test_fs")) {
 782                         param->s_flags |= EXT2_FLAGS_TEST_FILESYS;
 783                 } else if (!strcmp(token, "lazy_itable_init")) {
 784                         if (arg)
 785                                 lazy_itable_init = strtoul(arg, &p, 0);
 786                         else
 787                                 lazy_itable_init = 1;
 788                 } else if (!strcmp(token, "lazy_journal_init")) {
 789                         if (arg)
 790                                 journal_flags |= strtoul(arg, &p, 0) ?
 791                                                 EXT2_MKJOURNAL_LAZYINIT : 0;
 792                         else
 793                                 journal_flags |= EXT2_MKJOURNAL_LAZYINIT;
 794                 } else if (!strcmp(token, "discard")) {
 795                         discard = 1;
 796                 } else if (!strcmp(token, "nodiscard")) {
 797                         discard = 0;
 798                 } else if (!strcmp(token, "quotatype")) {
 799                         if (!arg) {
 800                                 r_usage++;
 801                                 badopt = token;
 802                                 continue;
 803                         }
 804                         if (!strncmp(arg, "usr", 3)) {
 805                                 quotatype = 0;
 806                         } else if (!strncmp(arg, "grp", 3)) {
 807                                 quotatype = 1;
 808                         } else {
 809                                 fprintf(stderr,
 810                                         _("Invalid quotatype parameter: %s\n"),
 811                                         arg);
 812                                 r_usage++;
 813                                 continue;
 814                         }
 815                 } else {
 816                         r_usage++;
 817                         badopt = token;
 818                 }
 819         }
 820         if (r_usage) {
 821                 fprintf(stderr, _("\nBad option(s) specified: %s\n\n"
 822                         "Extended options are separated by commas, "
 823                         "and may take an argument which\n"
 824                         "\tis set off by an equals ('=') sign.\n\n"
 825                         "Valid extended options are:\n"
 826                         "\tstride=<RAID per-disk data chunk in blocks>\n"
 827                         "\tstripe-width=<RAID stride * data disks in blocks>\n"
 828                         "\tresize=<resize maximum size in blocks>\n"
 829                         "\tlazy_itable_init=<0 to disable, 1 to enable>\n"
 830                         "\tlazy_journal_init=<0 to disable, 1 to enable>\n"
 831                         "\ttest_fs\n"
 832                         "\tdiscard\n"
 833                         "\tnodiscard\n"
 834                         "\tquotatype=<usr OR grp>\n\n"),
 835                         badopt ? badopt : "");
 836                 free(buf);
 837                 exit(1);
 838         }
 839         if (param->s_raid_stride &&
 840             (param->s_raid_stripe_width % param->s_raid_stride) != 0)
 841                 fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even "
 842                                   "multiple of stride %u.\n\n"),
 843                         param->s_raid_stripe_width, param->s_raid_stride);
 844
 845         free(buf);
 846 }
 847
 848 static __u32 ok_features[3] = {
 849         /* Compat */
 850         EXT3_FEATURE_COMPAT_HAS_JOURNAL |
 851                 EXT2_FEATURE_COMPAT_RESIZE_INODE |
 852                 EXT2_FEATURE_COMPAT_DIR_INDEX |
 853                 EXT2_FEATURE_COMPAT_EXT_ATTR,
 854         /* Incompat */
 855         EXT2_FEATURE_INCOMPAT_FILETYPE|
 856                 EXT3_FEATURE_INCOMPAT_EXTENTS|
 857                 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
 858                 EXT2_FEATURE_INCOMPAT_META_BG|
 859                 EXT4_FEATURE_INCOMPAT_FLEX_BG|
 860                 EXT4_FEATURE_INCOMPAT_MMP |
 861                 EXT4_FEATURE_INCOMPAT_64BIT,
 862         /* R/O compat */
 863         EXT2_FEATURE_RO_COMPAT_LARGE_FILE|
 864                 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
 865                 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
 866                 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
 867                 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|
 868                 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
 869                 EXT4_FEATURE_RO_COMPAT_BIGALLOC|
 870 #ifdef CONFIG_QUOTA
 871                 EXT4_FEATURE_RO_COMPAT_QUOTA|
 872 #endif
 873                 0
 874 };
 875
 876
 877 static void syntax_err_report(const char *filename, long err, int line_num)
 878 {
 879         fprintf(stderr,
 880                 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"),
 881                 filename, line_num, error_message(err));
 882         exit(1);
 883 }
 884
 885 static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 };
 886
 887 static void edit_feature(const char *str, __u32 *compat_array)
 888 {
 889         if (!str)
 890                 return;
 891
 892         if (e2p_edit_feature(str, compat_array, ok_features)) {
 893                 fprintf(stderr, _("Invalid filesystem option set: %s\n"),
 894                         str);
 895                 exit(1);
 896         }
 897 }
 898
 899 static void edit_mntopts(const char *str, __u32 *mntopts)
 900 {
 901         if (!str)
 902                 return;
 903
 904         if (e2p_edit_mntopts(str, mntopts, ~0)) {
 905                 fprintf(stderr, _("Invalid mount option set: %s\n"),
 906                         str);
 907                 exit(1);
 908         }
 909 }
 910
 911 struct str_list {
 912         char **list;
 913         int num;
 914         int max;
 915 };
 916
 917 static errcode_t init_list(struct str_list *sl)
 918 {
 919         sl->num = 0;
 920         sl->max = 0;
 921         sl->list = malloc((sl->max+1) * sizeof(char *));
 922         if (!sl->list)
 923                 return ENOMEM;
 924         sl->list[0] = 0;
 925         return 0;
 926 }
 927
 928 static errcode_t push_string(struct str_list *sl, const char *str)
 929 {
 930         char **new_list;
 931
 932         if (sl->num >= sl->max) {
 933                 sl->max += 2;
 934                 new_list = realloc(sl->list, (sl->max+1) * sizeof(char *));
 935                 if (!new_list)
 936                         return ENOMEM;
 937                 sl->list = new_list;
 938         }
 939         sl->list[sl->num] = malloc(strlen(str)+1);
 940         if (sl->list[sl->num] == 0)
 941                 return ENOMEM;
 942         strcpy(sl->list[sl->num], str);
 943         sl->num++;
 944         sl->list[sl->num] = 0;
 945         return 0;
 946 }
 947
 948 static void print_str_list(char **list)
 949 {
 950         char **cpp;
 951
 952         for (cpp = list; *cpp; cpp++) {
 953                 printf("'%s'", *cpp);
 954                 if (cpp[1])
 955                         fputs(", ", stdout);
 956         }
 957         fputc('\n', stdout);
 958 }
 959
 960 /*
 961  * Return TRUE if the profile has the given subsection
 962  */
 963 static int profile_has_subsection(profile_t prof, const char *section,
 964                                   const char *subsection)
 965 {
 966         void                    *state;
 967         const char              *names[4];
 968         char                    *name;
 969         int                     ret = 0;
 970
 971         names[0] = section;
 972         names[1] = subsection;
 973         names[2] = 0;
 974
 975         if (profile_iterator_create(prof, names,
 976                                     PROFILE_ITER_LIST_SECTION |
 977                                     PROFILE_ITER_RELATIONS_ONLY, &state))
 978                 return 0;
 979
 980         if ((profile_iterator(&state, &name, 0) == 0) && name) {
 981                 free(name);
 982                 ret = 1;
 983         }
 984
 985         profile_iterator_free(&state);
 986         return ret;
 987 }
 988
 989 static char **parse_fs_type(const char *fs_type,
 990                             const char *usage_types,
 991                             struct ext2_super_block *sb,
 992                             blk64_t fs_blocks_count,
 993                             char *progname)
 994 {
 995         const char      *ext_type = 0;
 996         char            *parse_str;
 997         char            *profile_type = 0;
 998         char            *cp, *t;
 999         const char      *size_type;
1000         struct str_list list;
1001         unsigned long long meg;
1002         int             is_hurd = 0;
1003
1004         if (init_list(&list))
1005                 return 0;
1006
1007         if (creator_os && (!strcasecmp(creator_os, "GNU") ||
1008                            !strcasecmp(creator_os, "hurd")))
1009                 is_hurd = 1;
1010
1011         if (fs_type)
1012                 ext_type = fs_type;
1013         else if (is_hurd)
1014                 ext_type = "ext2";
1015         else if (!strcmp(program_name, "mke3fs"))
1016                 ext_type = "ext3";
1017         else if (!strcmp(program_name, "mke4fs"))
1018                 ext_type = "ext4";
1019         else if (progname) {
1020                 ext_type = strrchr(progname, '/');
1021                 if (ext_type)
1022                         ext_type++;
1023                 else
1024                         ext_type = progname;
1025
1026                 if (!strncmp(ext_type, "mkfs.", 5)) {
1027                         ext_type += 5;
1028                         if (ext_type[0] == 0)
1029                                 ext_type = 0;
1030                 } else
1031                         ext_type = 0;
1032         }
1033
1034         if (!ext_type) {
1035                 profile_get_string(profile, "defaults", "fs_type", 0,
1036                                    "ext2", &profile_type);
1037                 ext_type = profile_type;
1038                 if (!strcmp(ext_type, "ext2") && (journal_size != 0))
1039                         ext_type = "ext3";
1040         }
1041
1042
1043         if (!profile_has_subsection(profile, "fs_types", ext_type) &&
1044             strcmp(ext_type, "ext2")) {
1045                 printf(_("\nYour mke2fs.conf file does not define the "
1046                          "%s filesystem type.\n"), ext_type);
1047                 if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") ||
1048                     !strcmp(ext_type, "ext4dev")) {
1049                         printf(_("You probably need to install an updated "
1050                                  "mke2fs.conf file.\n\n"));
1051                 }
1052                 if (!force) {
1053                         printf(_("Aborting...\n"));
1054                         exit(1);
1055                 }
1056         }
1057
1058         meg = (1024 * 1024) / EXT2_BLOCK_SIZE(sb);
1059         if (fs_blocks_count < 3 * meg)
1060                 size_type = "floppy";
1061         else if (fs_blocks_count < 512 * meg)
1062                 size_type = "small";
1063         else if (fs_blocks_count < 4 * 1024 * 1024 * meg)
1064                 size_type = "default";
1065         else if (fs_blocks_count < 16 * 1024 * 1024 * meg)
1066                 size_type = "big";
1067         else
1068                 size_type = "huge";
1069
1070         if (!usage_types)
1071                 usage_types = size_type;
1072
1073         parse_str = malloc(strlen(usage_types)+1);
1074         if (!parse_str) {
1075                 free(list.list);
1076                 return 0;
1077         }
1078         strcpy(parse_str, usage_types);
1079
1080         if (ext_type)
1081                 push_string(&list, ext_type);
1082         cp = parse_str;
1083         while (1) {
1084                 t = strchr(cp, ',');
1085                 if (t)
1086                         *t = '\0';
1087
1088                 if (*cp) {
1089                         if (profile_has_subsection(profile, "fs_types", cp))
1090                                 push_string(&list, cp);
1091                         else if (strcmp(cp, "default") != 0)
1092                                 fprintf(stderr,
1093                                         _("\nWarning: the fs_type %s is not "
1094                                           "defined in mke2fs.conf\n\n"),
1095                                         cp);
1096                 }
1097                 if (t)
1098                         cp = t+1;
1099                 else
1100                         break;
1101         }
1102         free(parse_str);
1103         free(profile_type);
1104         if (is_hurd)
1105                 push_string(&list, "hurd");
1106         return (list.list);
1107 }
1108
1109 static char *get_string_from_profile(char **types, const char *opt,
1110                                      const char *def_val)
1111 {
1112         char *ret = 0;
1113         int i;
1114
1115         for (i=0; types[i]; i++);
1116         for (i-=1; i >=0 ; i--) {
1117                 profile_get_string(profile, "fs_types", types[i],
1118                                    opt, 0, &ret);
1119                 if (ret)
1120                         return ret;
1121         }
1122         profile_get_string(profile, "defaults", opt, 0, def_val, &ret);
1123         return (ret);
1124 }
1125
1126 static int get_int_from_profile(char **types, const char *opt, int def_val)
1127 {
1128         int ret;
1129         char **cpp;
1130
1131         profile_get_integer(profile, "defaults", opt, 0, def_val, &ret);
1132         for (cpp = types; *cpp; cpp++)
1133                 profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret);
1134         return ret;
1135 }
1136
1137 static double get_double_from_profile(char **types, const char *opt,
1138                                       double def_val)
1139 {
1140         double ret;
1141         char **cpp;
1142
1143         profile_get_double(profile, "defaults", opt, 0, def_val, &ret);
1144         for (cpp = types; *cpp; cpp++)
1145                 profile_get_double(profile, "fs_types", *cpp, opt, ret, &ret);
1146         return ret;
1147 }
1148
1149 static int get_bool_from_profile(char **types, const char *opt, int def_val)
1150 {
1151         int ret;
1152         char **cpp;
1153
1154         profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret);
1155         for (cpp = types; *cpp; cpp++)
1156                 profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret);
1157         return ret;
1158 }
1159
1160 extern const char *mke2fs_default_profile;
1161 static const char *default_files[] = { "<default>", 0 };
1162
1163 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1164 /*
1165  * Sets the geometry of a device (stripe/stride), and returns the
1166  * device's alignment offset, if any, or a negative error.
1167  */
1168 static int get_device_geometry(const char *file,
1169                                struct ext2_super_block *fs_param,
1170                                int psector_size)
1171 {
1172         int rc = -1;
1173         int blocksize;
1174         blkid_probe pr;
1175         blkid_topology tp;
1176         unsigned long min_io;
1177         unsigned long opt_io;
1178         struct stat statbuf;
1179
1180         /* Nothing to do for a regular file */
1181         if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode))
1182                 return 0;
1183
1184         pr = blkid_new_probe_from_filename(file);
1185         if (!pr)
1186                 goto out;
1187
1188         tp = blkid_probe_get_topology(pr);
1189         if (!tp)
1190                 goto out;
1191
1192         min_io = blkid_topology_get_minimum_io_size(tp);
1193         opt_io = blkid_topology_get_optimal_io_size(tp);
1194         blocksize = EXT2_BLOCK_SIZE(fs_param);
1195         if ((min_io == 0) && (psector_size > blocksize))
1196                 min_io = psector_size;
1197         if ((opt_io == 0) && min_io)
1198                 opt_io = min_io;
1199         if ((opt_io == 0) && (psector_size > blocksize))
1200                 opt_io = psector_size;
1201
1202         /* setting stripe/stride to blocksize is pointless */
1203         if (min_io > blocksize)
1204                 fs_param->s_raid_stride = min_io / blocksize;
1205         if (opt_io > blocksize)
1206                 fs_param->s_raid_stripe_width = opt_io / blocksize;
1207
1208         rc = blkid_topology_get_alignment_offset(tp);
1209 out:
1210         blkid_free_probe(pr);
1211         return rc;
1212 }
1213 #endif
1214
1215 static void PRS(int argc, char *argv[])
1216 {
1217         int             b, c;
1218         int             cluster_size = 0;
1219         char            *tmp, **cpp;
1220         int             blocksize = 0;
1221         int             inode_ratio = 0;
1222         int             inode_size = 0;
1223         unsigned long   flex_bg_size = 0;
1224         double          reserved_ratio = -1.0;
1225         int             lsector_size = 0, psector_size = 0;
1226         int             show_version_only = 0;
1227         unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */
1228         errcode_t       retval;
1229         char *          oldpath = getenv("PATH");
1230         char *          extended_opts = 0;
1231         char *          fs_type = 0;
1232         char *          usage_types = 0;
1233         blk64_t         dev_size;
1234         blk64_t         fs_blocks_count = 0;
1235 #ifdef __linux__
1236         struct          utsname ut;
1237 #endif
1238         long            sysval;
1239         int             s_opt = -1, r_opt = -1;
1240         char            *fs_features = 0;
1241         int             use_bsize;
1242         char            *newpath;
1243         int             pathlen = sizeof(PATH_SET) + 1;
1244
1245         if (oldpath)
1246                 pathlen += strlen(oldpath);
1247         newpath = malloc(pathlen);
1248         if (!newpath) {
1249                 fprintf(stderr, _("Couldn't allocate memory for new PATH.\n"));
1250                 exit(1);
1251         }
1252         strcpy(newpath, PATH_SET);
1253
1254         /* Update our PATH to include /sbin  */
1255         if (oldpath) {
1256                 strcat (newpath, ":");
1257                 strcat (newpath, oldpath);
1258         }
1259         putenv (newpath);
1260
1261         tmp = getenv("MKE2FS_SYNC");
1262         if (tmp)
1263                 sync_kludge = atoi(tmp);
1264
1265         /* Determine the system page size if possible */
1266 #ifdef HAVE_SYSCONF
1267 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
1268 #define _SC_PAGESIZE _SC_PAGE_SIZE
1269 #endif
1270 #ifdef _SC_PAGESIZE
1271         sysval = sysconf(_SC_PAGESIZE);
1272         if (sysval > 0)
1273                 sys_page_size = sysval;
1274 #endif /* _SC_PAGESIZE */
1275 #endif /* HAVE_SYSCONF */
1276
1277         if ((tmp = getenv("MKE2FS_CONFIG")) != NULL)
1278                 config_fn[0] = tmp;
1279         profile_set_syntax_err_cb(syntax_err_report);
1280         retval = profile_init(config_fn, &profile);
1281         if (retval == ENOENT) {
1282                 retval = profile_init(default_files, &profile);
1283                 if (retval)
1284                         goto profile_error;
1285                 retval = profile_set_default(profile, mke2fs_default_profile);
1286                 if (retval)
1287                         goto profile_error;
1288         } else if (retval) {
1289 profile_error:
1290                 fprintf(stderr, _("Couldn't init profile successfully"
1291                                   " (error: %ld).\n"), retval);
1292                 exit(1);
1293         }
1294
1295         setbuf(stdout, NULL);
1296         setbuf(stderr, NULL);
1297         add_error_table(&et_ext2_error_table);
1298         add_error_table(&et_prof_error_table);
1299         memset(&fs_param, 0, sizeof(struct ext2_super_block));
1300         fs_param.s_rev_level = 1;  /* Create revision 1 filesystems now */
1301
1302 #ifdef __linux__
1303         if (uname(&ut)) {
1304                 perror("uname");
1305                 exit(1);
1306         }
1307         linux_version_code = parse_version_number(ut.release);
1308         if (linux_version_code && linux_version_code < (2*65536 + 2*256))
1309                 fs_param.s_rev_level = 0;
1310 #endif
1311
1312         if (argc && *argv) {
1313                 program_name = get_progname(*argv);
1314
1315                 /* If called as mkfs.ext3, create a journal inode */
1316                 if (!strcmp(program_name, "mkfs.ext3") ||
1317                     !strcmp(program_name, "mke3fs"))
1318                         journal_size = -1;
1319         }
1320
1321         while ((c = getopt (argc, argv,
1322                     "b:cg:i:jl:m:no:qr:s:t:vC:DE:FG:I:J:KL:M:N:O:R:ST:U:V")) != EOF) {
1323                 switch (c) {
1324                 case 'b':
1325                         blocksize = parse_num_blocks2(optarg, -1);
1326                         b = (blocksize > 0) ? blocksize : -blocksize;
1327                         if (b < EXT2_MIN_BLOCK_SIZE ||
1328                             b > EXT2_MAX_BLOCK_SIZE) {
1329                                 com_err(program_name, 0,
1330                                         _("invalid block size - %s"), optarg);
1331                                 exit(1);
1332                         }
1333                         if (blocksize > 4096)
1334                                 fprintf(stderr, _("Warning: blocksize %d not "
1335                                                   "usable on most systems.\n"),
1336                                         blocksize);
1337                         if (blocksize > 0)
1338                                 fs_param.s_log_block_size =
1339                                         int_log2(blocksize >>
1340                                                  EXT2_MIN_BLOCK_LOG_SIZE);
1341                         break;
1342                 case 'c':       /* Check for bad blocks */
1343                         cflag++;
1344                         break;
1345                 case 'C':
1346                         cluster_size = parse_num_blocks2(optarg, -1);
1347                         if (cluster_size <= EXT2_MIN_CLUSTER_SIZE ||
1348                             cluster_size > EXT2_MAX_CLUSTER_SIZE) {
1349                                 com_err(program_name, 0,
1350                                         _("invalid cluster size - %s"),
1351                                         optarg);
1352                                 exit(1);
1353                         }
1354                         break;
1355                 case 'D':
1356                         direct_io = 1;
1357                         break;
1358                 case 'R':
1359                         com_err(program_name, 0,
1360                                 _("'-R' is deprecated, use '-E' instead"));
1361                         /* fallthrough */
1362                 case 'E':
1363                         extended_opts = optarg;
1364                         break;
1365                 case 'F':
1366                         force++;
1367                         break;
1368                 case 'g':
1369                         fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
1370                         if (*tmp) {
1371                                 com_err(program_name, 0,
1372                                         _("Illegal number for blocks per group"));
1373                                 exit(1);
1374                         }
1375                         if ((fs_param.s_blocks_per_group % 8) != 0) {
1376                                 com_err(program_name, 0,
1377                                 _("blocks per group must be multiple of 8"));
1378                                 exit(1);
1379                         }
1380                         break;
1381                 case 'G':
1382                         flex_bg_size = strtoul(optarg, &tmp, 0);
1383                         if (*tmp) {
1384                                 com_err(program_name, 0,
1385                                         _("Illegal number for flex_bg size"));
1386                                 exit(1);
1387                         }
1388                         if (flex_bg_size < 1 ||
1389                             (flex_bg_size & (flex_bg_size-1)) != 0) {
1390                                 com_err(program_name, 0,
1391                                         _("flex_bg size must be a power of 2"));
1392                                 exit(1);
1393                         }
1394                         break;
1395                 case 'i':
1396                         inode_ratio = strtoul(optarg, &tmp, 0);
1397                         if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
1398                             inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024 ||
1399                             *tmp) {
1400                                 com_err(program_name, 0,
1401                                         _("invalid inode ratio %s (min %d/max %d)"),
1402                                         optarg, EXT2_MIN_BLOCK_SIZE,
1403                                         EXT2_MAX_BLOCK_SIZE * 1024);
1404                                 exit(1);
1405                         }
1406                         break;
1407                 case 'I':
1408                         inode_size = strtoul(optarg, &tmp, 0);
1409                         if (*tmp) {
1410                                 com_err(program_name, 0,
1411                                         _("invalid inode size - %s"), optarg);
1412                                 exit(1);
1413                         }
1414                         break;
1415                 case 'j':
1416                         if (!journal_size)
1417                                 journal_size = -1;
1418                         break;
1419                 case 'J':
1420                         parse_journal_opts(optarg);
1421                         break;
1422                 case 'K':
1423                         fprintf(stderr, _("Warning: -K option is deprecated and "
1424                                           "should not be used anymore. Use "
1425                                           "\'-E nodiscard\' extended option "
1426                                           "instead!\n"));
1427                         discard = 0;
1428                         break;
1429                 case 'l':
1430                         bad_blocks_filename = malloc(strlen(optarg)+1);
1431                         if (!bad_blocks_filename) {
1432                                 com_err(program_name, ENOMEM,
1433                                         _("in malloc for bad_blocks_filename"));
1434                                 exit(1);
1435                         }
1436                         strcpy(bad_blocks_filename, optarg);
1437                         break;
1438                 case 'L':
1439                         volume_label = optarg;
1440                         break;
1441                 case 'm':
1442                         reserved_ratio = strtod(optarg, &tmp);
1443                         if ( *tmp || reserved_ratio > 50 ||
1444                              reserved_ratio < 0) {
1445                                 com_err(program_name, 0,
1446                                         _("invalid reserved blocks percent - %s"),
1447                                         optarg);
1448                                 exit(1);
1449                         }
1450                         break;
1451                 case 'M':
1452                         mount_dir = optarg;
1453                         break;
1454                 case 'n':
1455                         noaction++;
1456                         break;
1457                 case 'N':
1458                         num_inodes = strtoul(optarg, &tmp, 0);
1459                         if (*tmp) {
1460                                 com_err(program_name, 0,
1461                                         _("bad num inodes - %s"), optarg);
1462                                         exit(1);
1463                         }
1464                         break;
1465                 case 'o':
1466                         creator_os = optarg;
1467                         break;
1468                 case 'O':
1469                         fs_features = optarg;
1470                         break;
1471                 case 'q':
1472                         quiet = 1;
1473                         break;
1474                 case 'r':
1475                         r_opt = strtoul(optarg, &tmp, 0);
1476                         if (*tmp) {
1477                                 com_err(program_name, 0,
1478                                         _("bad revision level - %s"), optarg);
1479                                 exit(1);
1480                         }
1481                         fs_param.s_rev_level = r_opt;
1482                         break;
1483                 case 's':       /* deprecated */
1484                         s_opt = atoi(optarg);
1485                         break;
1486                 case 'S':
1487                         super_only = 1;
1488                         break;
1489                 case 't':
1490                         if (fs_type) {
1491                                 com_err(program_name, 0,
1492                                     _("The -t option may only be used once"));
1493                                 exit(1);
1494                         }
1495                         fs_type = strdup(optarg);
1496                         break;
1497                 case 'T':
1498                         if (usage_types) {
1499                                 com_err(program_name, 0,
1500                                     _("The -T option may only be used once"));
1501                                 exit(1);
1502                         }
1503                         usage_types = strdup(optarg);
1504                         break;
1505                 case 'U':
1506                         fs_uuid = optarg;
1507                         break;
1508                 case 'v':
1509                         verbose = 1;
1510                         break;
1511                 case 'V':
1512                         /* Print version number and exit */
1513                         show_version_only++;
1514                         break;
1515                 default:
1516                         usage();
1517                 }
1518         }
1519         if ((optind == argc) && !show_version_only)
1520                 usage();
1521         device_name = argv[optind++];
1522
1523         if (!quiet || show_version_only)
1524                 fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION,
1525                          E2FSPROGS_DATE);
1526
1527         if (show_version_only) {
1528                 fprintf(stderr, _("\tUsing %s\n"),
1529                         error_message(EXT2_ET_BASE));
1530                 exit(0);
1531         }
1532
1533         /*
1534          * If there's no blocksize specified and there is a journal
1535          * device, use it to figure out the blocksize
1536          */
1537         if (blocksize <= 0 && journal_device) {
1538                 ext2_filsys     jfs;
1539                 io_manager      io_ptr;
1540
1541 #ifdef CONFIG_TESTIO_DEBUG
1542                 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1543                         io_ptr = test_io_manager;
1544                         test_io_backing_manager = unix_io_manager;
1545                 } else
1546 #endif
1547                         io_ptr = unix_io_manager;
1548                 retval = ext2fs_open(journal_device,
1549                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
1550                                      0, io_ptr, &jfs);
1551                 if (retval) {
1552                         com_err(program_name, retval,
1553                                 _("while trying to open journal device %s\n"),
1554                                 journal_device);
1555                         exit(1);
1556                 }
1557                 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
1558                         com_err(program_name, 0,
1559                                 _("Journal dev blocksize (%d) smaller than "
1560                                   "minimum blocksize %d\n"), jfs->blocksize,
1561                                 -blocksize);
1562                         exit(1);
1563                 }
1564                 blocksize = jfs->blocksize;
1565                 printf(_("Using journal device's blocksize: %d\n"), blocksize);
1566                 fs_param.s_log_block_size =
1567                         int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1568                 ext2fs_close(jfs);
1569         }
1570
1571         if (optind < argc) {
1572                 fs_blocks_count = parse_num_blocks2(argv[optind++],
1573                                                    fs_param.s_log_block_size);
1574                 if (!fs_blocks_count) {
1575                         com_err(program_name, 0,
1576                                 _("invalid blocks '%s' on device '%s'"),
1577                                 argv[optind - 1], device_name);
1578                         exit(1);
1579                 }
1580         }
1581         if (optind < argc)
1582                 usage();
1583
1584         if (!force)
1585                 check_plausibility(device_name);
1586         check_mount(device_name, force, _("filesystem"));
1587
1588         /* Determine the size of the device (if possible) */
1589         if (noaction && fs_blocks_count) {
1590                 dev_size = fs_blocks_count;
1591                 retval = 0;
1592         } else
1593                 retval = ext2fs_get_device_size2(device_name,
1594                                                  EXT2_BLOCK_SIZE(&fs_param),
1595                                                  &dev_size);
1596
1597         if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
1598                 com_err(program_name, retval,
1599                         _("while trying to determine filesystem size"));
1600                 exit(1);
1601         }
1602         if (!fs_blocks_count) {
1603                 if (retval == EXT2_ET_UNIMPLEMENTED) {
1604                         com_err(program_name, 0,
1605                                 _("Couldn't determine device size; you "
1606                                 "must specify\nthe size of the "
1607                                 "filesystem\n"));
1608                         exit(1);
1609                 } else {
1610                         if (dev_size == 0) {
1611                                 com_err(program_name, 0,
1612                                 _("Device size reported to be zero.  "
1613                                   "Invalid partition specified, or\n\t"
1614                                   "partition table wasn't reread "
1615                                   "after running fdisk, due to\n\t"
1616                                   "a modified partition being busy "
1617                                   "and in use.  You may need to reboot\n\t"
1618                                   "to re-read your partition table.\n"
1619                                   ));
1620                                 exit(1);
1621                         }
1622                         fs_blocks_count = dev_size;
1623                         if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param))
1624                                 fs_blocks_count &= ~((blk64_t) ((sys_page_size /
1625                                              EXT2_BLOCK_SIZE(&fs_param))-1));
1626                 }
1627         } else if (!force && (fs_blocks_count > dev_size)) {
1628                 com_err(program_name, 0,
1629                         _("Filesystem larger than apparent device size."));
1630                 proceed_question();
1631         }
1632
1633         if (!fs_type)
1634                 profile_get_string(profile, "devices", device_name,
1635                                    "fs_type", 0, &fs_type);
1636         if (!usage_types)
1637                 profile_get_string(profile, "devices", device_name,
1638                                    "usage_types", 0, &usage_types);
1639
1640         /*
1641          * We have the file system (or device) size, so we can now
1642          * determine the appropriate file system types so the fs can
1643          * be appropriately configured.
1644          */
1645         fs_types = parse_fs_type(fs_type, usage_types, &fs_param,
1646                                  fs_blocks_count ? fs_blocks_count : dev_size,
1647                                  argv[0]);
1648         if (!fs_types) {
1649                 fprintf(stderr, _("Failed to parse fs types list\n"));
1650                 exit(1);
1651         }
1652
1653         /* Figure out what features should be enabled */
1654
1655         tmp = NULL;
1656         if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) {
1657                 tmp = get_string_from_profile(fs_types, "base_features",
1658                       "sparse_super,filetype,resize_inode,dir_index");
1659                 edit_feature(tmp, &fs_param.s_feature_compat);
1660                 free(tmp);
1661
1662                 /* And which mount options as well */
1663                 tmp = get_string_from_profile(fs_types, "default_mntopts",
1664                                               "acl,user_xattr");
1665                 edit_mntopts(tmp, &fs_param.s_default_mount_opts);
1666                 if (tmp)
1667                         free(tmp);
1668
1669                 for (cpp = fs_types; *cpp; cpp++) {
1670                         tmp = NULL;
1671                         profile_get_string(profile, "fs_types", *cpp,
1672                                            "features", "", &tmp);
1673                         if (tmp && *tmp)
1674                                 edit_feature(tmp, &fs_param.s_feature_compat);
1675                         if (tmp)
1676                                 free(tmp);
1677                 }
1678                 tmp = get_string_from_profile(fs_types, "default_features",
1679                                               "");
1680         }
1681         edit_feature(fs_features ? fs_features : tmp,
1682                      &fs_param.s_feature_compat);
1683         if (tmp)
1684                 free(tmp);
1685
1686         /*
1687          * We now need to do a sanity check of fs_blocks_count for
1688          * 32-bit vs 64-bit block number support.
1689          */
1690         if ((fs_blocks_count > MAX_32_NUM) && (blocksize == 0)) {
1691                 fs_blocks_count /= 4; /* Try using a 4k blocksize */
1692                 blocksize = 4096;
1693                 fs_param.s_log_block_size = 2;
1694         }
1695         if ((fs_blocks_count > MAX_32_NUM) &&
1696             !(fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT) &&
1697             get_bool_from_profile(fs_types, "auto_64-bit_support", 0)) {
1698                 fs_param.s_feature_incompat |= EXT4_FEATURE_INCOMPAT_64BIT;
1699                 fs_param.s_feature_compat &= ~EXT2_FEATURE_COMPAT_RESIZE_INODE;
1700         }
1701         if ((fs_blocks_count > MAX_32_NUM) &&
1702             !(fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT)) {
1703                 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
1704                                   "too big to be expressed\n\t"
1705                                   "in 32 bits using a blocksize of %d.\n"),
1706                         program_name, fs_blocks_count, device_name,
1707                         EXT2_BLOCK_SIZE(&fs_param));
1708                 exit(1);
1709         }
1710
1711         ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
1712
1713         if (fs_param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
1714                 fs_types[0] = strdup("journal");
1715                 fs_types[1] = 0;
1716         }
1717
1718         if (verbose) {
1719                 fputs(_("fs_types for mke2fs.conf resolution: "), stdout);
1720                 print_str_list(fs_types);
1721         }
1722
1723         if (r_opt == EXT2_GOOD_OLD_REV &&
1724             (fs_param.s_feature_compat || fs_param.s_feature_incompat ||
1725              fs_param.s_feature_ro_compat)) {
1726                 fprintf(stderr, _("Filesystem features not supported "
1727                                   "with revision 0 filesystems\n"));
1728                 exit(1);
1729         }
1730
1731         if (s_opt > 0) {
1732                 if (r_opt == EXT2_GOOD_OLD_REV) {
1733                         fprintf(stderr, _("Sparse superblocks not supported "
1734                                   "with revision 0 filesystems\n"));
1735                         exit(1);
1736                 }
1737                 fs_param.s_feature_ro_compat |=
1738                         EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
1739         } else if (s_opt == 0)
1740                 fs_param.s_feature_ro_compat &=
1741                         ~EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
1742
1743         if (journal_size != 0) {
1744                 if (r_opt == EXT2_GOOD_OLD_REV) {
1745                         fprintf(stderr, _("Journals not supported "
1746                                   "with revision 0 filesystems\n"));
1747                         exit(1);
1748                 }
1749                 fs_param.s_feature_compat |=
1750                         EXT3_FEATURE_COMPAT_HAS_JOURNAL;
1751         }
1752
1753         /* Get reserved_ratio from profile if not specified on cmd line. */
1754         if (reserved_ratio < 0.0) {
1755                 reserved_ratio = get_double_from_profile(
1756                                         fs_types, "reserved_ratio", 5.0);
1757                 if (reserved_ratio > 50 || reserved_ratio < 0) {
1758                         com_err(program_name, 0,
1759                                 _("invalid reserved blocks percent - %lf"),
1760                                 reserved_ratio);
1761                         exit(1);
1762                 }
1763         }
1764
1765         if (fs_param.s_feature_incompat &
1766             EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
1767                 reserved_ratio = 0;
1768                 fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
1769                 fs_param.s_feature_compat = 0;
1770                 fs_param.s_feature_ro_compat = 0;
1771         }
1772
1773         if ((fs_param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) &&
1774             (fs_param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE)) {
1775                 fprintf(stderr, _("The resize_inode and meta_bg features "
1776                                   "are not compatible.\n"
1777                                   "They can not be both enabled "
1778                                   "simultaneously.\n"));
1779                 exit(1);
1780         }
1781
1782         /* Set first meta blockgroup via an environment variable */
1783         /* (this is mostly for debugging purposes) */
1784         if ((fs_param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) &&
1785             ((tmp = getenv("MKE2FS_FIRST_META_BG"))))
1786                 fs_param.s_first_meta_bg = atoi(tmp);
1787
1788         /* Get the hardware sector sizes, if available */
1789         retval = ext2fs_get_device_sectsize(device_name, &lsector_size);
1790         if (retval) {
1791                 com_err(program_name, retval,
1792                         _("while trying to determine hardware sector size"));
1793                 exit(1);
1794         }
1795         retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size);
1796         if (retval) {
1797                 com_err(program_name, retval,
1798                         _("while trying to determine physical sector size"));
1799                 exit(1);
1800         }
1801
1802         if ((tmp = getenv("MKE2FS_DEVICE_SECTSIZE")) != NULL)
1803                 lsector_size = atoi(tmp);
1804         if ((tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE")) != NULL)
1805                 psector_size = atoi(tmp);
1806
1807         /* Older kernels may not have physical/logical distinction */
1808         if (!psector_size)
1809                 psector_size = lsector_size;
1810
1811         if (blocksize <= 0) {
1812                 use_bsize = get_int_from_profile(fs_types, "blocksize", 4096);
1813
1814                 if (use_bsize == -1) {
1815                         use_bsize = sys_page_size;
1816                         if ((linux_version_code < (2*65536 + 6*256)) &&
1817                             (use_bsize > 4096))
1818                                 use_bsize = 4096;
1819                 }
1820                 if (lsector_size && use_bsize < lsector_size)
1821                         use_bsize = lsector_size;
1822                 if ((blocksize < 0) && (use_bsize < (-blocksize)))
1823                         use_bsize = -blocksize;
1824                 blocksize = use_bsize;
1825                 ext2fs_blocks_count_set(&fs_param,
1826                                         ext2fs_blocks_count(&fs_param) /
1827                                         (blocksize / 1024));
1828         } else {
1829                 if (blocksize < lsector_size) {                 /* Impossible */
1830                         com_err(program_name, EINVAL,
1831                                 _("while setting blocksize; too small "
1832                                   "for device\n"));
1833                         exit(1);
1834                 } else if ((blocksize < psector_size) &&
1835                            (psector_size <= sys_page_size)) {   /* Suboptimal */
1836                         fprintf(stderr, _("Warning: specified blocksize %d is "
1837                                 "less than device physical sectorsize %d\n"),
1838                                 blocksize, psector_size);
1839                 }
1840         }
1841
1842         fs_param.s_log_block_size =
1843                 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1844         if (fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_BIGALLOC) {
1845                 if (!cluster_size)
1846                         cluster_size = get_int_from_profile(fs_types,
1847                                                             "cluster_size",
1848                                                             blocksize*16);
1849                 fs_param.s_log_cluster_size =
1850                         int_log2(cluster_size >> EXT2_MIN_CLUSTER_LOG_SIZE);
1851                 if (fs_param.s_log_cluster_size &&
1852                     fs_param.s_log_cluster_size < fs_param.s_log_block_size) {
1853                         com_err(program_name, 0,
1854                                 _("The cluster size may not be "
1855                                   "smaller than the block size.\n"));
1856                         exit(1);
1857                 }
1858         } else if (cluster_size) {
1859                 com_err(program_name, 0,
1860                         _("specifying a cluster size requires the "
1861                           "bigalloc feature"));
1862                 exit(1);
1863         } else
1864                 fs_param.s_log_cluster_size = fs_param.s_log_block_size;
1865
1866         if (inode_ratio == 0) {
1867                 inode_ratio = get_int_from_profile(fs_types, "inode_ratio",
1868                                                    8192);
1869                 if (inode_ratio < blocksize)
1870                         inode_ratio = blocksize;
1871                 if (inode_ratio < EXT2_CLUSTER_SIZE(&fs_param))
1872                         inode_ratio = EXT2_CLUSTER_SIZE(&fs_param);
1873         }
1874
1875 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1876         retval = get_device_geometry(device_name, &fs_param, psector_size);
1877         if (retval < 0) {
1878                 fprintf(stderr,
1879                         _("warning: Unable to get device geometry for %s\n"),
1880                         device_name);
1881         } else if (retval) {
1882                 printf(_("%s alignment is offset by %lu bytes.\n"),
1883                        device_name, retval);
1884                 printf(_("This may result in very poor performance, "
1885                           "(re)-partitioning suggested.\n"));
1886         }
1887 #endif
1888
1889         blocksize = EXT2_BLOCK_SIZE(&fs_param);
1890
1891         /*
1892          * Initialize s_desc_size so that the parse_extended_opts()
1893          * can correctly handle "-E resize=NNN" if the 64-bit option
1894          * is set.
1895          */
1896         if (fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT)
1897                 fs_param.s_desc_size = EXT2_MIN_DESC_SIZE_64BIT;
1898
1899         /* This check should happen beyond the last assignment to blocksize */
1900         if (blocksize > sys_page_size) {
1901                 if (!force) {
1902                         com_err(program_name, 0,
1903                                 _("%d-byte blocks too big for system (max %d)"),
1904                                 blocksize, sys_page_size);
1905                         proceed_question();
1906                 }
1907                 fprintf(stderr, _("Warning: %d-byte blocks too big for system "
1908                                   "(max %d), forced to continue\n"),
1909                         blocksize, sys_page_size);
1910         }
1911
1912         lazy_itable_init = 0;
1913         if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0)
1914                 lazy_itable_init = 1;
1915
1916         lazy_itable_init = get_bool_from_profile(fs_types,
1917                                                  "lazy_itable_init",
1918                                                  lazy_itable_init);
1919         discard = get_bool_from_profile(fs_types, "discard" , discard);
1920         journal_flags |= get_bool_from_profile(fs_types,
1921                                                "lazy_journal_init", 0) ?
1922                                                EXT2_MKJOURNAL_LAZYINIT : 0;
1923         journal_flags |= EXT2_MKJOURNAL_NO_MNT_CHECK;
1924
1925         /* Get options from profile */
1926         for (cpp = fs_types; *cpp; cpp++) {
1927                 tmp = NULL;
1928                 profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp);
1929                         if (tmp && *tmp)
1930                                 parse_extended_opts(&fs_param, tmp);
1931                         free(tmp);
1932         }
1933
1934         if (extended_opts)
1935                 parse_extended_opts(&fs_param, extended_opts);
1936
1937         /* Can't support bigalloc feature without extents feature */
1938         if ((fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_BIGALLOC) &&
1939             !(fs_param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_EXTENTS)) {
1940                 com_err(program_name, 0,
1941                         _("Can't support bigalloc feature without "
1942                           "extents feature"));
1943                 exit(1);
1944         }
1945
1946         if (!quiet &&
1947             (fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_BIGALLOC))
1948                 fprintf(stderr, _("\nWarning: the bigalloc feature is still "
1949                                   "under development\n"
1950                                   "See https://ext4.wiki.kernel.org/"
1951                                   "index.php/Bigalloc for more information\n\n"));
1952
1953         if (!quiet &&
1954             (fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_QUOTA))
1955                 fprintf(stderr, _("\nWarning: the quota feature is still "
1956                                   "under development\n"
1957                                   "See https://ext4.wiki.kernel.org/"
1958                                   "index.php/Quota for more information\n\n"));
1959
1960         /* Since sparse_super is the default, we would only have a problem
1961          * here if it was explicitly disabled.
1962          */
1963         if ((fs_param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE) &&
1964             !(fs_param.s_feature_ro_compat&EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)) {
1965                 com_err(program_name, 0,
1966                         _("reserved online resize blocks not supported "
1967                           "on non-sparse filesystem"));
1968                 exit(1);
1969         }
1970
1971         if (fs_param.s_blocks_per_group) {
1972                 if (fs_param.s_blocks_per_group < 256 ||
1973                     fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) {
1974                         com_err(program_name, 0,
1975                                 _("blocks per group count out of range"));
1976                         exit(1);
1977                 }
1978         }
1979
1980         /*
1981          * If the bigalloc feature is enabled, then the -g option will
1982          * specify the number of clusters per group.
1983          */
1984         if (fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_BIGALLOC) {
1985                 fs_param.s_clusters_per_group = fs_param.s_blocks_per_group;
1986                 fs_param.s_blocks_per_group = 0;
1987         }
1988
1989         if (inode_size == 0)
1990                 inode_size = get_int_from_profile(fs_types, "inode_size", 0);
1991         if (!flex_bg_size && (fs_param.s_feature_incompat &
1992                               EXT4_FEATURE_INCOMPAT_FLEX_BG))
1993                 flex_bg_size = get_int_from_profile(fs_types,
1994                                                     "flex_bg_size", 16);
1995         if (flex_bg_size) {
1996                 if (!(fs_param.s_feature_incompat &
1997                       EXT4_FEATURE_INCOMPAT_FLEX_BG)) {
1998                         com_err(program_name, 0,
1999                                 _("Flex_bg feature not enabled, so "
2000                                   "flex_bg size may not be specified"));
2001                         exit(1);
2002                 }
2003                 fs_param.s_log_groups_per_flex = int_log2(flex_bg_size);
2004         }
2005
2006         if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) {
2007                 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
2008                     inode_size > EXT2_BLOCK_SIZE(&fs_param) ||
2009                     inode_size & (inode_size - 1)) {
2010                         com_err(program_name, 0,
2011                                 _("invalid inode size %d (min %d/max %d)"),
2012                                 inode_size, EXT2_GOOD_OLD_INODE_SIZE,
2013                                 blocksize);
2014                         exit(1);
2015                 }
2016                 fs_param.s_inode_size = inode_size;
2017         }
2018
2019         /* Make sure number of inodes specified will fit in 32 bits */
2020         if (num_inodes == 0) {
2021                 unsigned long long n;
2022                 n = ext2fs_blocks_count(&fs_param) * blocksize / inode_ratio;
2023                 if (n > MAX_32_NUM) {
2024                         if (fs_param.s_feature_incompat &
2025                             EXT4_FEATURE_INCOMPAT_64BIT)
2026                                 num_inodes = MAX_32_NUM;
2027                         else {
2028                                 com_err(program_name, 0,
2029                                         _("too many inodes (%llu), raise "
2030                                           "inode ratio?"), n);
2031                                 exit(1);
2032                         }
2033                 }
2034         } else if (num_inodes > MAX_32_NUM) {
2035                 com_err(program_name, 0,
2036                         _("too many inodes (%llu), specify < 2^32 inodes"),
2037                           num_inodes);
2038                 exit(1);
2039         }
2040         /*
2041          * Calculate number of inodes based on the inode ratio
2042          */
2043         fs_param.s_inodes_count = num_inodes ? num_inodes :
2044                 (ext2fs_blocks_count(&fs_param) * blocksize) / inode_ratio;
2045
2046         if ((((unsigned long long)fs_param.s_inodes_count) *
2047              (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >=
2048             ((ext2fs_blocks_count(&fs_param)) *
2049              EXT2_BLOCK_SIZE(&fs_param))) {
2050                 com_err(program_name, 0, _("inode_size (%u) * inodes_count "
2051                                           "(%u) too big for a\n\t"
2052                                           "filesystem with %llu blocks, "
2053                                           "specify higher inode_ratio (-i)\n\t"
2054                                           "or lower inode count (-N).\n"),
2055                         inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE,
2056                         fs_param.s_inodes_count,
2057                         (unsigned long long) ext2fs_blocks_count(&fs_param));
2058                 exit(1);
2059         }
2060
2061         /*
2062          * Calculate number of blocks to reserve
2063          */
2064         ext2fs_r_blocks_count_set(&fs_param, reserved_ratio *
2065                                   ext2fs_blocks_count(&fs_param) / 100.0);
2066
2067         free(fs_type);
2068         free(usage_types);
2069 }
2070
2071 static int should_do_undo(const char *name)
2072 {
2073         errcode_t retval;
2074         io_channel channel;
2075         __u16   s_magic;
2076         struct ext2_super_block super;
2077         io_manager manager = unix_io_manager;
2078         int csum_flag, force_undo;
2079
2080         csum_flag = EXT2_HAS_RO_COMPAT_FEATURE(&fs_param,
2081                                                EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
2082         force_undo = get_int_from_profile(fs_types, "force_undo", 0);
2083         if (!force_undo && (!csum_flag || !lazy_itable_init))
2084                 return 0;
2085
2086         retval = manager->open(name, IO_FLAG_EXCLUSIVE,  &channel);
2087         if (retval) {
2088                 /*
2089                  * We don't handle error cases instead we
2090                  * declare that the file system doesn't exist
2091                  * and let the rest of mke2fs take care of
2092                  * error
2093                  */
2094                 retval = 0;
2095                 goto open_err_out;
2096         }
2097
2098         io_channel_set_blksize(channel, SUPERBLOCK_OFFSET);
2099         retval = io_channel_read_blk64(channel, 1, -SUPERBLOCK_SIZE, &super);
2100         if (retval) {
2101                 retval = 0;
2102                 goto err_out;
2103         }
2104
2105 #if defined(WORDS_BIGENDIAN)
2106         s_magic = ext2fs_swab16(super.s_magic);
2107 #else
2108         s_magic = super.s_magic;
2109 #endif
2110
2111         if (s_magic == EXT2_SUPER_MAGIC)
2112                 retval = 1;
2113
2114 err_out:
2115         io_channel_close(channel);
2116
2117 open_err_out:
2118
2119         return retval;
2120 }
2121
2122 static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr)
2123 {
2124         errcode_t retval = ENOMEM;
2125         char *tdb_dir = NULL, *tdb_file = NULL;
2126         char *dev_name, *tmp_name;
2127         int free_tdb_dir = 0;
2128
2129         /*
2130          * Configuration via a conf file would be
2131          * nice
2132          */
2133         tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
2134         if (!tdb_dir) {
2135                 profile_get_string(profile, "defaults",
2136                                    "undo_dir", 0, "/var/lib/e2fsprogs",
2137                                    &tdb_dir);
2138                 free_tdb_dir = 1;
2139         }
2140
2141         if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
2142             access(tdb_dir, W_OK))
2143                 return 0;
2144
2145         tmp_name = strdup(name);
2146         if (!tmp_name)
2147                 goto errout;
2148         dev_name = basename(tmp_name);
2149         tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
2150         if (!tdb_file) {
2151                 free(tmp_name);
2152                 goto errout;
2153         }
2154         sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, dev_name);
2155         free(tmp_name);
2156
2157         if (!access(tdb_file, F_OK)) {
2158                 if (unlink(tdb_file) < 0) {
2159                         retval = errno;
2160                         goto errout;
2161                 }
2162         }
2163
2164         set_undo_io_backing_manager(*io_ptr);
2165         *io_ptr = undo_io_manager;
2166         retval = set_undo_io_backup_file(tdb_file);
2167         if (retval)
2168                 goto errout;
2169         printf(_("Overwriting existing filesystem; this can be undone "
2170                  "using the command:\n"
2171                  "    e2undo %s %s\n\n"), tdb_file, name);
2172
2173         if (free_tdb_dir)
2174                 free(tdb_dir);
2175         free(tdb_file);
2176         return 0;
2177
2178 errout:
2179         if (free_tdb_dir)
2180                 free(tdb_dir);
2181         free(tdb_file);
2182         com_err(program_name, retval,
2183                 _("while trying to setup undo file\n"));
2184         return retval;
2185 }
2186
2187 static int mke2fs_discard_device(ext2_filsys fs)
2188 {
2189         struct ext2fs_numeric_progress_struct progress;
2190         blk64_t blocks = ext2fs_blocks_count(fs->super);
2191         blk64_t count = DISCARD_STEP_MB;
2192         blk64_t cur;
2193         int retval = 0;
2194
2195         /*
2196          * Let's try if discard really works on the device, so
2197          * we do not print numeric progress resulting in failure
2198          * afterwards.
2199          */
2200         retval = io_channel_discard(fs->io, 0, fs->blocksize);
2201         if (retval)
2202                 return retval;
2203         cur = fs->blocksize;
2204
2205         count *= (1024 * 1024);
2206         count /= fs->blocksize;
2207
2208         ext2fs_numeric_progress_init(fs, &progress,
2209                                      _("Discarding device blocks: "),
2210                                      blocks);
2211         while (cur < blocks) {
2212                 ext2fs_numeric_progress_update(fs, &progress, cur);
2213
2214                 if (cur + count > blocks)
2215                         count = blocks - cur;
2216
2217                 retval = io_channel_discard(fs->io, cur, count);
2218                 if (retval)
2219                         break;
2220                 cur += count;
2221         }
2222
2223         if (retval) {
2224                 ext2fs_numeric_progress_close(fs, &progress,
2225                                       _("failed - "));
2226                 if (!quiet)
2227                         printf("%s\n",error_message(retval));
2228         } else
2229                 ext2fs_numeric_progress_close(fs, &progress,
2230                                       _("done                            \n"));
2231
2232         return retval;
2233 }
2234
2235 static void fix_cluster_bg_counts(ext2_filsys fs)
2236 {
2237         blk64_t cluster, num_clusters, tot_free;
2238         unsigned num = 0;
2239         int     grp_free, num_free, group;
2240
2241         num_clusters = EXT2FS_B2C(fs, ext2fs_blocks_count(fs->super));
2242         tot_free = num_free = group = grp_free = 0;
2243         for (cluster = EXT2FS_B2C(fs, fs->super->s_first_data_block);
2244              cluster < num_clusters; cluster++) {
2245                 if (!ext2fs_test_block_bitmap2(fs->block_map,
2246                                                EXT2FS_C2B(fs, cluster))) {
2247                         grp_free++;
2248                         tot_free++;
2249                 }
2250                 num++;
2251                 if ((num == fs->super->s_clusters_per_group) ||
2252                     (cluster == num_clusters-1)) {
2253                         ext2fs_bg_free_blocks_count_set(fs, group, grp_free);
2254                         ext2fs_group_desc_csum_set(fs, group);
2255                         num = 0;
2256                         grp_free = 0;
2257                         group++;
2258                 }
2259         }
2260         ext2fs_free_blocks_count_set(fs->super, EXT2FS_C2B(fs, tot_free));
2261 }
2262
2263 static int create_quota_inodes(ext2_filsys fs)
2264 {
2265         quota_ctx_t qctx;
2266
2267         quota_init_context(&qctx, fs, -1);
2268         quota_compute_usage(qctx);
2269         quota_write_inode(qctx, quotatype);
2270         quota_release_context(&qctx);
2271
2272         return 0;
2273 }
2274
2275 int main (int argc, char *argv[])
2276 {
2277         errcode_t       retval = 0;
2278         ext2_filsys     fs;
2279         badblocks_list  bb_list = 0;
2280         unsigned int    journal_blocks;
2281         unsigned int    i, checkinterval;
2282         int             max_mnt_count;
2283         int             val, hash_alg;
2284         int             flags;
2285         int             old_bitmaps;
2286         io_manager      io_ptr;
2287         char            tdb_string[40];
2288         char            *hash_alg_str;
2289         int             itable_zeroed = 0;
2290
2291 #ifdef ENABLE_NLS
2292         setlocale(LC_MESSAGES, "");
2293         setlocale(LC_CTYPE, "");
2294         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
2295         textdomain(NLS_CAT_NAME);
2296         set_com_err_gettext(gettext);
2297 #endif
2298         PRS(argc, argv);
2299
2300 #ifdef CONFIG_TESTIO_DEBUG
2301         if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
2302                 io_ptr = test_io_manager;
2303                 test_io_backing_manager = unix_io_manager;
2304         } else
2305 #endif
2306                 io_ptr = unix_io_manager;
2307
2308         if (should_do_undo(device_name)) {
2309                 retval = mke2fs_setup_tdb(device_name, &io_ptr);
2310                 if (retval)
2311                         exit(1);
2312         }
2313
2314         /*
2315          * Initialize the superblock....
2316          */
2317         flags = EXT2_FLAG_EXCLUSIVE;
2318         if (direct_io)
2319                 flags |= EXT2_FLAG_DIRECT_IO;
2320         profile_get_boolean(profile, "options", "old_bitmaps", 0, 0,
2321                             &old_bitmaps);
2322         if (!old_bitmaps)
2323                 flags |= EXT2_FLAG_64BITS;
2324         /*
2325          * By default, we print how many inode tables or block groups
2326          * or whatever we've written so far.  The quiet flag disables
2327          * this, along with a lot of other output.
2328          */
2329         if (!quiet)
2330                 flags |= EXT2_FLAG_PRINT_PROGRESS;
2331         retval = ext2fs_initialize(device_name, flags, &fs_param, io_ptr, &fs);
2332         if (retval) {
2333                 com_err(device_name, retval, _("while setting up superblock"));
2334                 exit(1);
2335         }
2336
2337         /* Can't undo discard ... */
2338         if (!noaction && discard && (io_ptr != undo_io_manager)) {
2339                 retval = mke2fs_discard_device(fs);
2340                 if (!retval && io_channel_discard_zeroes_data(fs->io)) {
2341                         if (verbose)
2342                                 printf(_("Discard succeeded and will return 0s "
2343                                          " - skipping inode table wipe\n"));
2344                         lazy_itable_init = 1;
2345                         itable_zeroed = 1;
2346                 }
2347         }
2348
2349         sprintf(tdb_string, "tdb_data_size=%d", fs->blocksize <= 4096 ?
2350                 32768 : fs->blocksize * 8);
2351         io_channel_set_options(fs->io, tdb_string);
2352
2353         if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS)
2354                 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
2355
2356         if ((fs_param.s_feature_incompat &
2357              (EXT3_FEATURE_INCOMPAT_EXTENTS|EXT4_FEATURE_INCOMPAT_FLEX_BG)) ||
2358             (fs_param.s_feature_ro_compat &
2359              (EXT4_FEATURE_RO_COMPAT_HUGE_FILE|EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
2360               EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
2361               EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE)))
2362                 fs->super->s_kbytes_written = 1;
2363
2364         /*
2365          * Wipe out the old on-disk superblock
2366          */
2367         if (!noaction)
2368                 zap_sector(fs, 2, 6);
2369
2370         /*
2371          * Parse or generate a UUID for the filesystem
2372          */
2373         if (fs_uuid) {
2374                 if (uuid_parse(fs_uuid, fs->super->s_uuid) !=0) {
2375                         com_err(device_name, 0, "could not parse UUID: %s\n",
2376                                 fs_uuid);
2377                         exit(1);
2378                 }
2379         } else
2380                 uuid_generate(fs->super->s_uuid);
2381
2382         /*
2383          * Initialize the directory index variables
2384          */
2385         hash_alg_str = get_string_from_profile(fs_types, "hash_alg",
2386                                                "half_md4");
2387         hash_alg = e2p_string2hash(hash_alg_str);
2388         free(hash_alg_str);
2389         fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg :
2390                 EXT2_HASH_HALF_MD4;
2391         uuid_generate((unsigned char *) fs->super->s_hash_seed);
2392
2393         /*
2394          * Periodic checks can be enabled/disabled via config file.
2395          * Note we override the kernel include file's idea of what the default
2396          * check interval (never) should be.  It's a good idea to check at
2397          * least *occasionally*, specially since servers will never rarely get
2398          * to reboot, since Linux is so robust these days.  :-)
2399          *
2400          * 180 days (six months) seems like a good value.
2401          */
2402 #ifdef EXT2_DFL_CHECKINTERVAL
2403 #undef EXT2_DFL_CHECKINTERVAL
2404 #endif
2405 #define EXT2_DFL_CHECKINTERVAL (86400L * 180L)
2406
2407         if (get_bool_from_profile(fs_types, "enable_periodic_fsck", 0)) {
2408                 fs->super->s_checkinterval = EXT2_DFL_CHECKINTERVAL;
2409                 fs->super->s_max_mnt_count = EXT2_DFL_MAX_MNT_COUNT;
2410                 /*
2411                  * Add "jitter" to the superblock's check interval so that we
2412                  * don't check all the filesystems at the same time.  We use a
2413                  * kludgy hack of using the UUID to derive a random jitter value
2414                  */
2415                 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++)
2416                         val += fs->super->s_uuid[i];
2417                 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
2418         } else
2419                 fs->super->s_max_mnt_count = -1;
2420
2421         /*
2422          * Override the creator OS, if applicable
2423          */
2424         if (creator_os && !set_os(fs->super, creator_os)) {
2425                 com_err (program_name, 0, _("unknown os - %s"), creator_os);
2426                 exit(1);
2427         }
2428
2429         /*
2430          * For the Hurd, we will turn off filetype since it doesn't
2431          * support it.
2432          */
2433         if (fs->super->s_creator_os == EXT2_OS_HURD)
2434                 fs->super->s_feature_incompat &=
2435                         ~EXT2_FEATURE_INCOMPAT_FILETYPE;
2436
2437         /*
2438          * Set the volume label...
2439          */
2440         if (volume_label) {
2441                 memset(fs->super->s_volume_name, 0,
2442                        sizeof(fs->super->s_volume_name));
2443                 strncpy(fs->super->s_volume_name, volume_label,
2444                         sizeof(fs->super->s_volume_name));
2445         }
2446
2447         /*
2448          * Set the last mount directory
2449          */
2450         if (mount_dir) {
2451                 memset(fs->super->s_last_mounted, 0,
2452                        sizeof(fs->super->s_last_mounted));
2453                 strncpy(fs->super->s_last_mounted, mount_dir,
2454                         sizeof(fs->super->s_last_mounted));
2455         }
2456
2457         if (!quiet || noaction)
2458                 show_stats(fs);
2459
2460         if (noaction)
2461                 exit(0);
2462
2463         if (fs->super->s_feature_incompat &
2464             EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
2465                 create_journal_dev(fs);
2466                 exit(ext2fs_close(fs) ? 1 : 0);
2467         }
2468
2469         if (bad_blocks_filename)
2470                 read_bb_file(fs, &bb_list, bad_blocks_filename);
2471         if (cflag)
2472                 test_disk(fs, &bb_list);
2473
2474         handle_bad_blocks(fs, bb_list);
2475         fs->stride = fs_stride = fs->super->s_raid_stride;
2476         if (!quiet)
2477                 printf(_("Allocating group tables: "));
2478         retval = ext2fs_allocate_tables(fs);
2479         if (retval) {
2480                 com_err(program_name, retval,
2481                         _("while trying to allocate filesystem tables"));
2482                 exit(1);
2483         }
2484         if (!quiet)
2485                 printf(_("done                            \n"));
2486
2487         retval = ext2fs_convert_subcluster_bitmap(fs, &fs->block_map);
2488         if (retval) {
2489                 com_err(program_name, retval,
2490                         _("\n\twhile converting subcluster bitmap"));
2491                 exit(1);
2492         }
2493
2494         if (super_only) {
2495                 fs->super->s_state |= EXT2_ERROR_FS;
2496                 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
2497                 /*
2498                  * The command "mke2fs -S" is used to recover
2499                  * corrupted file systems, so do not mark any of the
2500                  * inodes as unused; we want e2fsck to consider all
2501                  * inodes as potentially containing recoverable data.
2502                  */
2503                 if (fs->super->s_feature_ro_compat &
2504                     EXT4_FEATURE_RO_COMPAT_GDT_CSUM) {
2505                         for (i = 0; i < fs->group_desc_count; i++)
2506                                 ext2fs_bg_itable_unused_set(fs, i, 0);
2507                 }
2508         } else {
2509                 /* rsv must be a power of two (64kB is MD RAID sb alignment) */
2510                 blk64_t rsv = 65536 / fs->blocksize;
2511                 blk64_t blocks = ext2fs_blocks_count(fs->super);
2512                 blk64_t start;
2513                 blk64_t ret_blk;
2514
2515 #ifdef ZAP_BOOTBLOCK
2516                 zap_sector(fs, 0, 2);
2517 #endif
2518
2519                 /*
2520                  * Wipe out any old MD RAID (or other) metadata at the end
2521                  * of the device.  This will also verify that the device is
2522                  * as large as we think.  Be careful with very small devices.
2523                  */
2524                 start = (blocks & ~(rsv - 1));
2525                 if (start > rsv)
2526                         start -= rsv;
2527                 if (start > 0)
2528                         retval = ext2fs_zero_blocks2(fs, start, blocks - start,
2529                                                     &ret_blk, NULL);
2530
2531                 if (retval) {
2532                         com_err(program_name, retval,
2533                                 _("while zeroing block %llu at end of filesystem"),
2534                                 ret_blk);
2535                 }
2536                 write_inode_tables(fs, lazy_itable_init, itable_zeroed);
2537                 create_root_dir(fs);
2538                 create_lost_and_found(fs);
2539                 reserve_inodes(fs);
2540                 create_bad_block_inode(fs, bb_list);
2541                 if (fs->super->s_feature_compat &
2542                     EXT2_FEATURE_COMPAT_RESIZE_INODE) {
2543                         retval = ext2fs_create_resize_inode(fs);
2544                         if (retval) {
2545                                 com_err("ext2fs_create_resize_inode", retval,
2546                                 _("while reserving blocks for online resize"));
2547                                 exit(1);
2548                         }
2549                 }
2550         }
2551
2552         if (journal_device) {
2553                 ext2_filsys     jfs;
2554
2555                 if (!force)
2556                         check_plausibility(journal_device);
2557                 check_mount(journal_device, force, _("journal"));
2558
2559                 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
2560                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
2561                                      fs->blocksize, unix_io_manager, &jfs);
2562                 if (retval) {
2563                         com_err(program_name, retval,
2564                                 _("while trying to open journal device %s\n"),
2565                                 journal_device);
2566                         exit(1);
2567                 }
2568                 if (!quiet) {
2569                         printf(_("Adding journal to device %s: "),
2570                                journal_device);
2571                         fflush(stdout);
2572                 }
2573                 retval = ext2fs_add_journal_device(fs, jfs);
2574                 if(retval) {
2575                         com_err (program_name, retval,
2576                                  _("\n\twhile trying to add journal to device %s"),
2577                                  journal_device);
2578                         exit(1);
2579                 }
2580                 if (!quiet)
2581                         printf(_("done\n"));
2582                 ext2fs_close(jfs);
2583                 free(journal_device);
2584         } else if ((journal_size) ||
2585                    (fs_param.s_feature_compat &
2586                     EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
2587                 journal_blocks = figure_journal_size(journal_size, fs);
2588
2589                 if (super_only) {
2590                         printf(_("Skipping journal creation in super-only mode\n"));
2591                         fs->super->s_journal_inum = EXT2_JOURNAL_INO;
2592                         goto no_journal;
2593                 }
2594
2595                 if (!journal_blocks) {
2596                         fs->super->s_feature_compat &=
2597                                 ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
2598                         goto no_journal;
2599                 }
2600                 if (!quiet) {
2601                         printf(_("Creating journal (%u blocks): "),
2602                                journal_blocks);
2603                         fflush(stdout);
2604                 }
2605                 retval = ext2fs_add_journal_inode(fs, journal_blocks,
2606                                                   journal_flags);
2607                 if (retval) {
2608                         com_err (program_name, retval,
2609                                  _("\n\twhile trying to create journal"));
2610                         exit(1);
2611                 }
2612                 if (!quiet)
2613                         printf(_("done\n"));
2614         }
2615 no_journal:
2616         if (!super_only &&
2617             fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_MMP) {
2618                 retval = ext2fs_mmp_init(fs);
2619                 if (retval) {
2620                         fprintf(stderr, _("\nError while enabling multiple "
2621                                           "mount protection feature."));
2622                         exit(1);
2623                 }
2624                 if (!quiet)
2625                         printf(_("Multiple mount protection is enabled "
2626                                  "with update interval %d seconds.\n"),
2627                                fs->super->s_mmp_update_interval);
2628         }
2629
2630         if (EXT2_HAS_RO_COMPAT_FEATURE(&fs_param,
2631                                        EXT4_FEATURE_RO_COMPAT_BIGALLOC))
2632                 fix_cluster_bg_counts(fs);
2633         if (EXT2_HAS_RO_COMPAT_FEATURE(&fs_param,
2634                                        EXT4_FEATURE_RO_COMPAT_QUOTA))
2635                 create_quota_inodes(fs);
2636
2637         if (!quiet)
2638                 printf(_("Writing superblocks and "
2639                        "filesystem accounting information: "));
2640         checkinterval = fs->super->s_checkinterval;
2641         max_mnt_count = fs->super->s_max_mnt_count;
2642         retval = ext2fs_close(fs);
2643         if (retval) {
2644                 fprintf(stderr,
2645                         _("\nWarning, had trouble writing out superblocks."));
2646         } else if (!quiet) {
2647                 printf(_("done\n\n"));
2648                 if (!getenv("MKE2FS_SKIP_CHECK_MSG"))
2649                         print_check_message(max_mnt_count, checkinterval);
2650         }
2651
2652         remove_error_table(&et_ext2_error_table);
2653         remove_error_table(&et_prof_error_table);
2654         profile_release(profile);
2655         for (i=0; fs_types[i]; i++)
2656                 free(fs_types[i]);
2657         free(fs_types);
2658         return retval;
2659 }