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
  20
  21 #include "config.h"
  22 #include <stdio.h>
  23 #include <string.h>
  24 #include <strings.h>
  25 #include <ctype.h>
  26 #include <time.h>
  27 #ifdef __linux__
  28 #include <sys/utsname.h>
  29 #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
  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 #ifdef HAVE_SYS_IOCTL_H
  47 #include <sys/ioctl.h>
  48 #endif
  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 "uuid/uuid.h"
  56 #include "util.h"
  57 #include "support/nls-enable.h"
  58 #include "support/plausible.h"
  59 #include "support/profile.h"
  60 #include "support/prof_err.h"
  61 #include "../version.h"
  62 #include "support/quotaio.h"
  63 #include "mke2fs.h"
  64 #include "create_inode.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 static const char * device_name /* = NULL */;
  81
  82 /* Command line options */
  83 static int      cflag;
  84 int     verbose;
  85 int     quiet;
  86 static int      super_only;
  87 static int      discard = 1;    /* attempt to discard device before fs creation */
  88 static int      direct_io;
  89 static int      force;
  90 static int      noaction;
  91 static int      num_backups = 2; /* number of backup bg's for sparse_super2 */
  92 static uid_t    root_uid;
  93 static gid_t    root_gid;
  94 int     journal_size;
  95 int     journal_flags;
  96 int     journal_fc_size;
  97 static e2_blkcnt_t      orphan_file_blocks;
  98 static int      lazy_itable_init;
  99 static int      assume_storage_prezeroed;
 100 static int      packed_meta_blocks;
 101 int             no_copy_xattrs;
 102 static char     *bad_blocks_filename = NULL;
 103 static __u32    fs_stride;
 104 /* Initialize usr/grp quotas by default */
 105 static unsigned int quotatype_bits = (QUOTA_USR_BIT | QUOTA_GRP_BIT);
 106 static __u64    offset;
 107 static blk64_t journal_location = ~0LL;
 108 static int      proceed_delay = -1;
 109 static blk64_t  dev_size;
 110
 111 static struct ext2_super_block fs_param;
 112 static __u32 zero_buf[4];
 113 static char *fs_uuid = NULL;
 114 static char *creator_os;
 115 static char *volume_label;
 116 static char *mount_dir;
 117 char *journal_device;
 118 static int sync_kludge; /* Set using the MKE2FS_SYNC env. option */
 119 char **fs_types;
 120 const char *src_root_dir;  /* Copy files from the specified directory */
 121 static char *undo_file;
 122
 123 static int android_sparse_file; /* -E android_sparse */
 124
 125 static profile_t        profile;
 126
 127 static int sys_page_size = 4096;
 128
 129 static int errors_behavior = 0;
 130
 131 static void usage(void)
 132 {
 133         fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] "
 134         "[-C cluster-size]\n\t[-i bytes-per-inode] [-I inode-size] "
 135         "[-J journal-options]\n"
 136         "\t[-G flex-group-size] [-N number-of-inodes] "
 137         "[-d root-directory]\n"
 138         "\t[-m reserved-blocks-percentage] [-o creator-os]\n"
 139         "\t[-g blocks-per-group] [-L volume-label] "
 140         "[-M last-mounted-directory]\n\t[-O feature[,...]] "
 141         "[-r fs-revision] [-E extended-option[,...]]\n"
 142         "\t[-t fs-type] [-T usage-type ] [-U UUID] [-e errors_behavior]"
 143         "[-z undo_file]\n"
 144         "\t[-jnqvDFSV] device [blocks-count]\n"),
 145                 program_name);
 146         exit(1);
 147 }
 148
 149 static int int_log2(unsigned long long arg)
 150 {
 151         int     l = 0;
 152
 153         arg >>= 1;
 154         while (arg) {
 155                 l++;
 156                 arg >>= 1;
 157         }
 158         return l;
 159 }
 160
 161 int int_log10(unsigned long long arg)
 162 {
 163         int     l;
 164
 165         for (l=0; arg ; l++)
 166                 arg = arg / 10;
 167         return l;
 168 }
 169
 170 #ifdef __linux__
 171 static int parse_version_number(const char *s)
 172 {
 173         int     major, minor, rev;
 174         char    *endptr;
 175         const char *cp = s;
 176
 177         if (!s)
 178                 return 0;
 179         major = strtol(cp, &endptr, 10);
 180         if (cp == endptr || *endptr != '.')
 181                 return 0;
 182         cp = endptr + 1;
 183         minor = strtol(cp, &endptr, 10);
 184         if (cp == endptr || *endptr != '.')
 185                 return 0;
 186         cp = endptr + 1;
 187         rev = strtol(cp, &endptr, 10);
 188         if (cp == endptr)
 189                 return 0;
 190         return KERNEL_VERSION(major, minor, rev);
 191 }
 192
 193 static int is_before_linux_ver(unsigned int major, unsigned int minor,
 194                                unsigned int rev)
 195 {
 196         struct          utsname ut;
 197         static int      linux_version_code = -1;
 198
 199         if (uname(&ut)) {
 200                 perror("uname");
 201                 exit(1);
 202         }
 203         if (linux_version_code < 0)
 204                 linux_version_code = parse_version_number(ut.release);
 205         if (linux_version_code == 0)
 206                 return 0;
 207
 208         return linux_version_code < (int) KERNEL_VERSION(major, minor, rev);
 209 }
 210 #else
 211 static int is_before_linux_ver(unsigned int major, unsigned int minor,
 212                                unsigned int rev)
 213 {
 214         return 0;
 215 }
 216 #endif
 217
 218 /*
 219  * Helper function for read_bb_file and test_disk
 220  */
 221 static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk)
 222 {
 223         fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk);
 224         return;
 225 }
 226
 227 /*
 228  * Reads the bad blocks list from a file
 229  */
 230 static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list,
 231                          const char *bad_blocks_file)
 232 {
 233         FILE            *f;
 234         errcode_t       retval;
 235
 236         f = fopen(bad_blocks_file, "r");
 237         if (!f) {
 238                 com_err("read_bad_blocks_file", errno,
 239                         _("while trying to open %s"), bad_blocks_file);
 240                 exit(1);
 241         }
 242         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
 243         fclose (f);
 244         if (retval) {
 245                 com_err("ext2fs_read_bb_FILE", retval, "%s",
 246                         _("while reading in list of bad blocks from file"));
 247                 exit(1);
 248         }
 249 }
 250
 251 /*
 252  * Runs the badblocks program to test the disk
 253  */
 254 static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
 255 {
 256         FILE            *f;
 257         errcode_t       retval;
 258         char            buf[1024];
 259
 260         sprintf(buf, "badblocks -b %d -X %s%s%s %llu", fs->blocksize,
 261                 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "",
 262                 fs->device_name,
 263                 (unsigned long long) ext2fs_blocks_count(fs->super)-1);
 264         if (verbose)
 265                 printf(_("Running command: %s\n"), buf);
 266         f = popen(buf, "r");
 267         if (!f) {
 268                 com_err("popen", errno,
 269                         _("while trying to run '%s'"), buf);
 270                 exit(1);
 271         }
 272         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
 273         pclose(f);
 274         if (retval) {
 275                 com_err("ext2fs_read_bb_FILE", retval, "%s",
 276                         _("while processing list of bad blocks from program"));
 277                 exit(1);
 278         }
 279 }
 280
 281 static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
 282 {
 283         dgrp_t                  i;
 284         blk_t                   j;
 285         unsigned                must_be_good;
 286         blk_t                   blk;
 287         badblocks_iterate       bb_iter;
 288         errcode_t               retval;
 289         blk_t                   group_block;
 290         int                     group;
 291         int                     group_bad;
 292
 293         if (!bb_list)
 294                 return;
 295
 296         /*
 297          * The primary superblock and group descriptors *must* be
 298          * good; if not, abort.
 299          */
 300         must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
 301         for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
 302                 if (ext2fs_badblocks_list_test(bb_list, i)) {
 303                         fprintf(stderr, _("Block %d in primary "
 304                                 "superblock/group descriptor area bad.\n"), i);
 305                         fprintf(stderr, _("Blocks %u through %u must be good "
 306                                 "in order to build a filesystem.\n"),
 307                                 fs->super->s_first_data_block, must_be_good);
 308                         fputs(_("Aborting....\n"), stderr);
 309                         exit(1);
 310                 }
 311         }
 312
 313         /*
 314          * See if any of the bad blocks are showing up in the backup
 315          * superblocks and/or group descriptors.  If so, issue a
 316          * warning and adjust the block counts appropriately.
 317          */
 318         group_block = fs->super->s_first_data_block +
 319                 fs->super->s_blocks_per_group;
 320
 321         for (i = 1; i < fs->group_desc_count; i++) {
 322                 group_bad = 0;
 323                 for (j=0; j < fs->desc_blocks+1; j++) {
 324                         if (ext2fs_badblocks_list_test(bb_list,
 325                                                        group_block + j)) {
 326                                 if (!group_bad)
 327                                         fprintf(stderr,
 328 _("Warning: the backup superblock/group descriptors at block %u contain\n"
 329 "       bad blocks.\n\n"),
 330                                                 group_block);
 331                                 group_bad++;
 332                                 group = ext2fs_group_of_blk2(fs, group_block+j);
 333                                 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
 334                                 ext2fs_group_desc_csum_set(fs, group);
 335                                 ext2fs_free_blocks_count_add(fs->super, 1);
 336                         }
 337                 }
 338                 group_block += fs->super->s_blocks_per_group;
 339         }
 340
 341         /*
 342          * Mark all the bad blocks as used...
 343          */
 344         retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
 345         if (retval) {
 346                 com_err("ext2fs_badblocks_list_iterate_begin", retval, "%s",
 347                         _("while marking bad blocks as used"));
 348                 exit(1);
 349         }
 350         while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
 351                 ext2fs_mark_block_bitmap2(fs->block_map, blk);
 352         ext2fs_badblocks_list_iterate_end(bb_iter);
 353 }
 354
 355 static void write_reserved_inodes(ext2_filsys fs)
 356 {
 357         errcode_t       retval;
 358         ext2_ino_t      ino;
 359         struct ext2_inode *inode;
 360
 361         retval = ext2fs_get_memzero(EXT2_INODE_SIZE(fs->super), &inode);
 362         if (retval) {
 363                 com_err("inode_init", retval, _("while allocating memory"));
 364                 exit(1);
 365         }
 366
 367         for (ino = 1; ino < EXT2_FIRST_INO(fs->super); ino++) {
 368                 retval = ext2fs_write_inode_full(fs, ino, inode,
 369                                                  EXT2_INODE_SIZE(fs->super));
 370                 if (retval) {
 371                         com_err("ext2fs_write_inode_full", retval,
 372                                 _("while writing reserved inodes"));
 373                         exit(1);
 374                 }
 375         }
 376
 377         ext2fs_free_mem(&inode);
 378 }
 379
 380 static errcode_t packed_allocate_tables(ext2_filsys fs)
 381 {
 382         errcode_t       retval;
 383         dgrp_t          i;
 384         blk64_t         goal = 0;
 385
 386         for (i = 0; i < fs->group_desc_count; i++) {
 387                 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
 388                 if (retval)
 389                         return retval;
 390                 ext2fs_block_alloc_stats2(fs, goal, +1);
 391                 ext2fs_block_bitmap_loc_set(fs, i, goal);
 392         }
 393         for (i = 0; i < fs->group_desc_count; i++) {
 394                 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
 395                 if (retval)
 396                         return retval;
 397                 ext2fs_block_alloc_stats2(fs, goal, +1);
 398                 ext2fs_inode_bitmap_loc_set(fs, i, goal);
 399         }
 400         for (i = 0; i < fs->group_desc_count; i++) {
 401                 blk64_t end = ext2fs_blocks_count(fs->super) - 1;
 402                 retval = ext2fs_get_free_blocks2(fs, goal, end,
 403                                                  fs->inode_blocks_per_group,
 404                                                  fs->block_map, &goal);
 405                 if (retval)
 406                         return retval;
 407                 ext2fs_block_alloc_stats_range(fs, goal,
 408                                                fs->inode_blocks_per_group, +1);
 409                 ext2fs_inode_table_loc_set(fs, i, goal);
 410                 ext2fs_group_desc_csum_set(fs, i);
 411         }
 412         return 0;
 413 }
 414
 415 static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed)
 416 {
 417         errcode_t       retval;
 418         blk64_t         blk;
 419         dgrp_t          i;
 420         int             num;
 421         struct ext2fs_numeric_progress_struct progress;
 422
 423         ext2fs_numeric_progress_init(fs, &progress,
 424                                      _("Writing inode tables: "),
 425                                      fs->group_desc_count);
 426
 427         for (i = 0; i < fs->group_desc_count; i++) {
 428                 ext2fs_numeric_progress_update(fs, &progress, i);
 429
 430                 blk = ext2fs_inode_table_loc(fs, i);
 431                 num = fs->inode_blocks_per_group;
 432
 433                 if (lazy_flag)
 434                         num = ext2fs_div_ceil((fs->super->s_inodes_per_group -
 435                                                ext2fs_bg_itable_unused(fs, i)) *
 436                                               EXT2_INODE_SIZE(fs->super),
 437                                               EXT2_BLOCK_SIZE(fs->super));
 438                 if (!lazy_flag || itable_zeroed) {
 439                         /* The kernel doesn't need to zero the itable blocks */
 440                         ext2fs_bg_flags_set(fs, i, EXT2_BG_INODE_ZEROED);
 441                         ext2fs_group_desc_csum_set(fs, i);
 442                 }
 443                 if (!itable_zeroed) {
 444                         retval = ext2fs_zero_blocks2(fs, blk, num, &blk, &num);
 445                         if (retval) {
 446                                 fprintf(stderr, _("\nCould not write %d "
 447                                           "blocks in inode table starting at %llu: %s\n"),
 448                                         num, (unsigned long long) blk,
 449                                         error_message(retval));
 450                                 exit(1);
 451                         }
 452                 }
 453                 if (sync_kludge) {
 454                         if (sync_kludge == 1)
 455                                 io_channel_flush(fs->io);
 456                         else if ((i % sync_kludge) == 0)
 457                                 io_channel_flush(fs->io);
 458                 }
 459         }
 460         ext2fs_numeric_progress_close(fs, &progress,
 461                                       _("done                            \n"));
 462
 463         /* Reserved inodes must always have correct checksums */
 464         if (ext2fs_has_feature_metadata_csum(fs->super))
 465                 write_reserved_inodes(fs);
 466 }
 467
 468 static void create_root_dir(ext2_filsys fs)
 469 {
 470         errcode_t               retval;
 471         struct ext2_inode       inode;
 472
 473         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
 474         if (retval) {
 475                 com_err("ext2fs_mkdir", retval, "%s",
 476                         _("while creating root dir"));
 477                 exit(1);
 478         }
 479         if (root_uid != 0 || root_gid != 0) {
 480                 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
 481                 if (retval) {
 482                         com_err("ext2fs_read_inode", retval, "%s",
 483                                 _("while reading root inode"));
 484                         exit(1);
 485                 }
 486
 487                 inode.i_uid = root_uid;
 488                 ext2fs_set_i_uid_high(inode, root_uid >> 16);
 489                 inode.i_gid = root_gid;
 490                 ext2fs_set_i_gid_high(inode, root_gid >> 16);
 491
 492                 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
 493                 if (retval) {
 494                         com_err("ext2fs_write_inode", retval, "%s",
 495                                 _("while setting root inode ownership"));
 496                         exit(1);
 497                 }
 498         }
 499 }
 500
 501 static void create_lost_and_found(ext2_filsys fs)
 502 {
 503         unsigned int            lpf_size = 0;
 504         errcode_t               retval;
 505         ext2_ino_t              ino;
 506         const char              *name = "lost+found";
 507         int                     i;
 508
 509         fs->umask = 077;
 510         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
 511         if (retval) {
 512                 com_err("ext2fs_mkdir", retval, "%s",
 513                         _("while creating /lost+found"));
 514                 exit(1);
 515         }
 516
 517         retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
 518         if (retval) {
 519                 com_err("ext2_lookup", retval, "%s",
 520                         _("while looking up /lost+found"));
 521                 exit(1);
 522         }
 523
 524         for (i=1; i < EXT2_NDIR_BLOCKS; i++) {
 525                 /* Ensure that lost+found is at least 2 blocks, so we always
 526                  * test large empty blocks for big-block filesystems.  */
 527                 if ((lpf_size += fs->blocksize) >= 16*1024 &&
 528                     lpf_size >= 2 * fs->blocksize)
 529                         break;
 530                 retval = ext2fs_expand_dir(fs, ino);
 531                 if (retval) {
 532                         com_err("ext2fs_expand_dir", retval, "%s",
 533                                 _("while expanding /lost+found"));
 534                         exit(1);
 535                 }
 536         }
 537 }
 538
 539 static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
 540 {
 541         errcode_t       retval;
 542
 543         ext2fs_mark_inode_bitmap2(fs->inode_map, EXT2_BAD_INO);
 544         ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0);
 545         retval = ext2fs_update_bb_inode(fs, bb_list);
 546         if (retval) {
 547                 com_err("ext2fs_update_bb_inode", retval, "%s",
 548                         _("while setting bad block inode"));
 549                 exit(1);
 550         }
 551
 552 }
 553
 554 static void reserve_inodes(ext2_filsys fs)
 555 {
 556         ext2_ino_t      i;
 557
 558         for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++)
 559                 ext2fs_inode_alloc_stats2(fs, i, +1, 0);
 560         ext2fs_mark_ib_dirty(fs);
 561 }
 562
 563 #define BSD_DISKMAGIC   (0x82564557UL)  /* The disk magic number */
 564 #define BSD_MAGICDISK   (0x57455682UL)  /* The disk magic number reversed */
 565 #define BSD_LABEL_OFFSET        64
 566
 567 static void zap_sector(ext2_filsys fs, int sect, int nsect)
 568 {
 569         char *buf;
 570         int retval;
 571         unsigned int *magic;
 572
 573         buf = calloc(512, nsect);
 574         if (!buf) {
 575                 printf(_("Out of memory erasing sectors %d-%d\n"),
 576                        sect, sect + nsect - 1);
 577                 exit(1);
 578         }
 579
 580         if (sect == 0) {
 581                 /* Check for a BSD disklabel, and don't erase it if so */
 582                 retval = io_channel_read_blk64(fs->io, 0, -512, buf);
 583                 if (retval)
 584                         fprintf(stderr,
 585                                 _("Warning: could not read block 0: %s\n"),
 586                                 error_message(retval));
 587                 else {
 588                         magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);
 589                         if ((*magic == BSD_DISKMAGIC) ||
 590                             (*magic == BSD_MAGICDISK)) {
 591                                 free(buf);
 592                                 return;
 593                         }
 594                 }
 595         }
 596
 597         memset(buf, 0, 512*nsect);
 598         io_channel_set_blksize(fs->io, 512);
 599         retval = io_channel_write_blk64(fs->io, sect, -512*nsect, buf);
 600         io_channel_set_blksize(fs->io, fs->blocksize);
 601         free(buf);
 602         if (retval)
 603                 fprintf(stderr, _("Warning: could not erase sector %d: %s\n"),
 604                         sect, error_message(retval));
 605 }
 606
 607 static void create_journal_dev(ext2_filsys fs)
 608 {
 609         struct ext2fs_numeric_progress_struct progress;
 610         errcode_t               retval;
 611         char                    *buf;
 612         blk64_t                 blk, err_blk;
 613         int                     c, count, err_count;
 614         struct ext2fs_journal_params    jparams;
 615
 616         retval = ext2fs_get_journal_params(&jparams, fs);
 617         if (retval) {
 618                 com_err("create_journal_dev", retval, "%s",
 619                         _("while splitting the journal size"));
 620                 exit(1);
 621         }
 622
 623         retval = ext2fs_create_journal_superblock2(fs, &jparams, 0, &buf);
 624         if (retval) {
 625                 com_err("create_journal_dev", retval, "%s",
 626                         _("while initializing journal superblock"));
 627                 exit(1);
 628         }
 629
 630         if (journal_flags & EXT2_MKJOURNAL_LAZYINIT)
 631                 goto write_superblock;
 632
 633         ext2fs_numeric_progress_init(fs, &progress,
 634                                      _("Zeroing journal device: "),
 635                                      ext2fs_blocks_count(fs->super));
 636         blk = 0;
 637         count = ext2fs_blocks_count(fs->super);
 638         while (count > 0) {
 639                 if (count > 1024)
 640                         c = 1024;
 641                 else
 642                         c = count;
 643                 retval = ext2fs_zero_blocks2(fs, blk, c, &err_blk, &err_count);
 644                 if (retval) {
 645                         com_err("create_journal_dev", retval,
 646                                 _("while zeroing journal device "
 647                                   "(block %llu, count %d)"),
 648                                 (unsigned long long) err_blk, err_count);
 649                         exit(1);
 650                 }
 651                 blk += c;
 652                 count -= c;
 653                 ext2fs_numeric_progress_update(fs, &progress, blk);
 654         }
 655
 656         ext2fs_numeric_progress_close(fs, &progress, NULL);
 657 write_superblock:
 658         retval = io_channel_write_blk64(fs->io,
 659                                         fs->super->s_first_data_block+1,
 660                                         1, buf);
 661         (void) ext2fs_free_mem(&buf);
 662         if (retval) {
 663                 com_err("create_journal_dev", retval, "%s",
 664                         _("while writing journal superblock"));
 665                 exit(1);
 666         }
 667 }
 668
 669 static void show_stats(ext2_filsys fs)
 670 {
 671         struct ext2_super_block *s = fs->super;
 672         char                    *os;
 673         blk64_t                 group_block;
 674         dgrp_t                  i;
 675         int                     need, col_left;
 676
 677         if (!verbose) {
 678                 printf(_("Creating filesystem with %llu %dk blocks and "
 679                          "%u inodes\n"),
 680                        (unsigned long long) ext2fs_blocks_count(s),
 681                        fs->blocksize >> 10, s->s_inodes_count);
 682                 goto skip_details;
 683         }
 684
 685         if (ext2fs_blocks_count(&fs_param) != ext2fs_blocks_count(s))
 686                 fprintf(stderr, _("warning: %llu blocks unused.\n\n"),
 687                         (unsigned long long) (ext2fs_blocks_count(&fs_param) -
 688                                               ext2fs_blocks_count(s)));
 689
 690         printf(_("Filesystem label=%.*s\n"), EXT2_LEN_STR(s->s_volume_name));
 691
 692         os = e2p_os2string(fs->super->s_creator_os);
 693         if (os)
 694                 printf(_("OS type: %s\n"), os);
 695         free(os);
 696         printf(_("Block size=%u (log=%u)\n"), fs->blocksize,
 697                 s->s_log_block_size);
 698         if (ext2fs_has_feature_bigalloc(fs->super))
 699                 printf(_("Cluster size=%u (log=%u)\n"),
 700                        fs->blocksize << fs->cluster_ratio_bits,
 701                        s->s_log_cluster_size);
 702         else
 703                 printf(_("Fragment size=%u (log=%u)\n"), EXT2_CLUSTER_SIZE(s),
 704                        s->s_log_cluster_size);
 705         printf(_("Stride=%u blocks, Stripe width=%u blocks\n"),
 706                s->s_raid_stride, s->s_raid_stripe_width);
 707         printf(_("%u inodes, %llu blocks\n"), s->s_inodes_count,
 708                (unsigned long long) ext2fs_blocks_count(s));
 709         printf(_("%llu blocks (%2.2f%%) reserved for the super user\n"),
 710                (unsigned long long) ext2fs_r_blocks_count(s),
 711                100.0 *  ext2fs_r_blocks_count(s) / ext2fs_blocks_count(s));
 712         printf(_("First data block=%u\n"), s->s_first_data_block);
 713         if (root_uid != 0 || root_gid != 0)
 714                 printf(_("Root directory owner=%u:%u\n"), root_uid, root_gid);
 715         if (s->s_reserved_gdt_blocks)
 716                 printf(_("Maximum filesystem blocks=%lu\n"),
 717                        (s->s_reserved_gdt_blocks + fs->desc_blocks) *
 718                        EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group);
 719         if (fs->group_desc_count > 1)
 720                 printf(_("%u block groups\n"), fs->group_desc_count);
 721         else
 722                 printf(_("%u block group\n"), fs->group_desc_count);
 723         if (ext2fs_has_feature_bigalloc(fs->super))
 724                 printf(_("%u blocks per group, %u clusters per group\n"),
 725                        s->s_blocks_per_group, s->s_clusters_per_group);
 726         else
 727                 printf(_("%u blocks per group, %u fragments per group\n"),
 728                        s->s_blocks_per_group, s->s_clusters_per_group);
 729         printf(_("%u inodes per group\n"), s->s_inodes_per_group);
 730
 731 skip_details:
 732         if (fs->group_desc_count == 1) {
 733                 printf("\n");
 734                 return;
 735         }
 736
 737         if (!e2p_is_null_uuid(s->s_uuid))
 738                 printf(_("Filesystem UUID: %s\n"), e2p_uuid2str(s->s_uuid));
 739         printf("%s", _("Superblock backups stored on blocks: "));
 740         group_block = s->s_first_data_block;
 741         col_left = 0;
 742         for (i = 1; i < fs->group_desc_count; i++) {
 743                 group_block += s->s_blocks_per_group;
 744                 if (!ext2fs_bg_has_super(fs, i))
 745                         continue;
 746                 if (i != 1)
 747                         printf(", ");
 748                 need = int_log10(group_block) + 2;
 749                 if (need > col_left) {
 750                         printf("\n\t");
 751                         col_left = 72;
 752                 }
 753                 col_left -= need;
 754                 printf("%llu", (unsigned long long) group_block);
 755         }
 756         printf("\n\n");
 757 }
 758
 759 /*
 760  * Returns true if making a file system for the Hurd, else 0
 761  */
 762 static int for_hurd(const char *os)
 763 {
 764         if (!os) {
 765 #ifdef __GNU__
 766                 return 1;
 767 #else
 768                 return 0;
 769 #endif
 770         }
 771         if (isdigit(*os))
 772                 return (atoi(os) == EXT2_OS_HURD);
 773         return (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0);
 774 }
 775
 776 /*
 777  * Set the S_CREATOR_OS field.  Return true if OS is known,
 778  * otherwise, 0.
 779  */
 780 static int set_os(struct ext2_super_block *sb, char *os)
 781 {
 782         if (isdigit (*os))
 783                 sb->s_creator_os = atoi (os);
 784         else if (strcasecmp(os, "linux") == 0)
 785                 sb->s_creator_os = EXT2_OS_LINUX;
 786         else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0)
 787                 sb->s_creator_os = EXT2_OS_HURD;
 788         else if (strcasecmp(os, "freebsd") == 0)
 789                 sb->s_creator_os = EXT2_OS_FREEBSD;
 790         else if (strcasecmp(os, "lites") == 0)
 791                 sb->s_creator_os = EXT2_OS_LITES;
 792         else
 793                 return 0;
 794         return 1;
 795 }
 796
 797 #define PATH_SET "PATH=/sbin"
 798
 799 static void parse_extended_opts(struct ext2_super_block *param,
 800                                 const char *opts)
 801 {
 802         char    *buf, *token, *next, *p, *arg, *badopt = 0;
 803         int     len;
 804         int     r_usage = 0;
 805         int     ret;
 806         int     encoding = -1;
 807         char    *encoding_flags = NULL;
 808
 809         len = strlen(opts);
 810         buf = malloc(len+1);
 811         if (!buf) {
 812                 fprintf(stderr, "%s",
 813                         _("Couldn't allocate memory to parse options!\n"));
 814                 exit(1);
 815         }
 816         strcpy(buf, opts);
 817         for (token = buf; token && *token; token = next) {
 818                 p = strchr(token, ',');
 819                 next = 0;
 820                 if (p) {
 821                         *p = 0;
 822                         next = p+1;
 823                 }
 824                 arg = strchr(token, '=');
 825                 if (arg) {
 826                         *arg = 0;
 827                         arg++;
 828                 }
 829                 if (strcmp(token, "desc-size") == 0 ||
 830                     strcmp(token, "desc_size") == 0) {
 831                         int desc_size;
 832
 833                         if (!ext2fs_has_feature_64bit(&fs_param)) {
 834                                 fprintf(stderr,
 835                                         _("%s requires '-O 64bit'\n"), token);
 836                                 r_usage++;
 837                                 continue;
 838                         }
 839                         if (param->s_reserved_gdt_blocks != 0) {
 840                                 fprintf(stderr,
 841                                         _("'%s' must be before 'resize=%u'\n"),
 842                                         token, param->s_reserved_gdt_blocks);
 843                                 r_usage++;
 844                                 continue;
 845                         }
 846                         if (!arg) {
 847                                 r_usage++;
 848                                 badopt = token;
 849                                 continue;
 850                         }
 851                         desc_size = strtoul(arg, &p, 0);
 852                         if (*p || (desc_size & (desc_size - 1))) {
 853                                 fprintf(stderr,
 854                                         _("Invalid desc_size: '%s'\n"), arg);
 855                                 r_usage++;
 856                                 continue;
 857                         }
 858                         param->s_desc_size = desc_size;
 859                 } else if (strcmp(token, "hash_seed") == 0) {
 860                         if (!arg) {
 861                                 r_usage++;
 862                                 badopt = token;
 863                                 continue;
 864                         }
 865                         if (uuid_parse(arg,
 866                                 (unsigned char *)param->s_hash_seed) != 0) {
 867                                 fprintf(stderr,
 868                                         _("Invalid hash seed: %s\n"), arg);
 869                                 r_usage++;
 870                                 continue;
 871                         }
 872                 } else if (strcmp(token, "offset") == 0) {
 873                         if (!arg) {
 874                                 r_usage++;
 875                                 badopt = token;
 876                                 continue;
 877                         }
 878                         offset = strtoull(arg, &p, 0);
 879                         if (*p) {
 880                                 fprintf(stderr, _("Invalid offset: %s\n"),
 881                                         arg);
 882                                 r_usage++;
 883                                 continue;
 884                         }
 885                 } else if (strcmp(token, "mmp_update_interval") == 0) {
 886                         if (!arg) {
 887                                 r_usage++;
 888                                 badopt = token;
 889                                 continue;
 890                         }
 891                         param->s_mmp_update_interval = strtoul(arg, &p, 0);
 892                         if (*p) {
 893                                 fprintf(stderr,
 894                                         _("Invalid mmp_update_interval: %s\n"),
 895                                         arg);
 896                                 r_usage++;
 897                                 continue;
 898                         }
 899                 } else if (strcmp(token, "no_copy_xattrs") == 0) {
 900                         no_copy_xattrs = 1;
 901                         continue;
 902                 } else if (strcmp(token, "num_backup_sb") == 0) {
 903                         if (!arg) {
 904                                 r_usage++;
 905                                 badopt = token;
 906                                 continue;
 907                         }
 908                         num_backups = strtoul(arg, &p, 0);
 909                         if (*p || num_backups > 2) {
 910                                 fprintf(stderr,
 911                                         _("Invalid # of backup "
 912                                           "superblocks: %s\n"),
 913                                         arg);
 914                                 r_usage++;
 915                                 continue;
 916                         }
 917                 } else if (strcmp(token, "packed_meta_blocks") == 0) {
 918                         if (arg)
 919                                 packed_meta_blocks = strtoul(arg, &p, 0);
 920                         else
 921                                 packed_meta_blocks = 1;
 922                         if (packed_meta_blocks)
 923                                 journal_location = 0;
 924                 } else if (strcmp(token, "stride") == 0) {
 925                         if (!arg) {
 926                                 r_usage++;
 927                                 badopt = token;
 928                                 continue;
 929                         }
 930                         param->s_raid_stride = strtoul(arg, &p, 0);
 931                         if (*p) {
 932                                 fprintf(stderr,
 933                                         _("Invalid stride parameter: %s\n"),
 934                                         arg);
 935                                 r_usage++;
 936                                 continue;
 937                         }
 938                 } else if (strcmp(token, "stripe-width") == 0 ||
 939                            strcmp(token, "stripe_width") == 0) {
 940                         if (!arg) {
 941                                 r_usage++;
 942                                 badopt = token;
 943                                 continue;
 944                         }
 945                         param->s_raid_stripe_width = strtoul(arg, &p, 0);
 946                         if (*p) {
 947                                 fprintf(stderr,
 948                                         _("Invalid stripe-width parameter: %s\n"),
 949                                         arg);
 950                                 r_usage++;
 951                                 continue;
 952                         }
 953                 } else if (!strcmp(token, "resize")) {
 954                         blk64_t resize;
 955                         unsigned long bpg, rsv_groups;
 956                         unsigned long group_desc_count, desc_blocks;
 957                         unsigned int gdpb, blocksize;
 958                         int rsv_gdb;
 959
 960                         if (!arg) {
 961                                 r_usage++;
 962                                 badopt = token;
 963                                 continue;
 964                         }
 965
 966                         resize = parse_num_blocks2(arg,
 967                                                    param->s_log_block_size);
 968
 969                         if (resize == 0) {
 970                                 fprintf(stderr,
 971                                         _("Invalid resize parameter: %s\n"),
 972                                         arg);
 973                                 r_usage++;
 974                                 continue;
 975                         }
 976                         if (resize <= ext2fs_blocks_count(param)) {
 977                                 fprintf(stderr, "%s",
 978                                         _("The resize maximum must be greater "
 979                                           "than the filesystem size.\n"));
 980                                 r_usage++;
 981                                 continue;
 982                         }
 983
 984                         blocksize = EXT2_BLOCK_SIZE(param);
 985                         bpg = param->s_blocks_per_group;
 986                         if (!bpg)
 987                                 bpg = blocksize * 8;
 988                         gdpb = EXT2_DESC_PER_BLOCK(param);
 989                         group_desc_count = (__u32) ext2fs_div64_ceil(
 990                                 ext2fs_blocks_count(param), bpg);
 991                         desc_blocks = (group_desc_count +
 992                                        gdpb - 1) / gdpb;
 993                         rsv_groups = ext2fs_div64_ceil(resize, bpg);
 994                         rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) -
 995                                 desc_blocks;
 996                         if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param))
 997                                 rsv_gdb = EXT2_ADDR_PER_BLOCK(param);
 998
 999                         if (rsv_gdb > 0) {
1000                                 if (param->s_rev_level == EXT2_GOOD_OLD_REV) {
1001                                         fprintf(stderr, "%s",
1002         _("On-line resizing not supported with revision 0 filesystems\n"));
1003                                         free(buf);
1004                                         exit(1);
1005                                 }
1006                                 ext2fs_set_feature_resize_inode(param);
1007
1008                                 param->s_reserved_gdt_blocks = rsv_gdb;
1009                         }
1010                 } else if (!strcmp(token, "test_fs")) {
1011                         param->s_flags |= EXT2_FLAGS_TEST_FILESYS;
1012                 } else if (!strcmp(token, "lazy_itable_init")) {
1013                         if (arg)
1014                                 lazy_itable_init = strtoul(arg, &p, 0);
1015                         else
1016                                 lazy_itable_init = 1;
1017                 } else if (!strcmp(token, "assume_storage_prezeroed")) {
1018                         if (arg)
1019                                 assume_storage_prezeroed = strtoul(arg, &p, 0);
1020                         else
1021                                 assume_storage_prezeroed = 1;
1022                 } else if (!strcmp(token, "lazy_journal_init")) {
1023                         if (arg)
1024                                 journal_flags |= strtoul(arg, &p, 0) ?
1025                                                 EXT2_MKJOURNAL_LAZYINIT : 0;
1026                         else
1027                                 journal_flags |= EXT2_MKJOURNAL_LAZYINIT;
1028                 } else if (!strcmp(token, "root_owner")) {
1029                         if (arg) {
1030                                 root_uid = strtoul(arg, &p, 0);
1031                                 if (*p != ':') {
1032                                         fprintf(stderr,
1033                                                 _("Invalid root_owner: '%s'\n"),
1034                                                 arg);
1035                                         r_usage++;
1036                                         continue;
1037                                 }
1038                                 p++;
1039                                 root_gid = strtoul(p, &p, 0);
1040                                 if (*p) {
1041                                         fprintf(stderr,
1042                                                 _("Invalid root_owner: '%s'\n"),
1043                                                 arg);
1044                                         r_usage++;
1045                                         continue;
1046                                 }
1047                         } else {
1048                                 root_uid = getuid();
1049                                 root_gid = getgid();
1050                         }
1051                 } else if (!strcmp(token, "discard")) {
1052                         discard = 1;
1053                 } else if (!strcmp(token, "nodiscard")) {
1054                         discard = 0;
1055                 } else if (!strcmp(token, "quotatype")) {
1056                         char *errtok = NULL;
1057
1058                         if (!arg) {
1059                                 r_usage++;
1060                                 badopt = token;
1061                                 continue;
1062                         }
1063                         quotatype_bits = 0;
1064                         ret = parse_quota_types(arg, &quotatype_bits, &errtok);
1065                         if (ret) {
1066                                 if (errtok) {
1067                                         fprintf(stderr,
1068                                 "Failed to parse quota type at %s", errtok);
1069                                         free(errtok);
1070                                 } else
1071                                         com_err(program_name, ret,
1072                                                 "while parsing quota type");
1073                                 r_usage++;
1074                                 badopt = token;
1075                                 continue;
1076                         }
1077                 } else if (!strcmp(token, "android_sparse")) {
1078                         android_sparse_file = 1;
1079                 } else if (!strcmp(token, "encoding")) {
1080                         if (!arg) {
1081                                 r_usage++;
1082                                 continue;
1083                         }
1084
1085                         encoding = e2p_str2encoding(arg);
1086                         if (encoding < 0) {
1087                                 fprintf(stderr, _("Invalid encoding: %s"), arg);
1088                                 r_usage++;
1089                                 continue;
1090                         }
1091                         param->s_encoding = encoding;
1092                         ext2fs_set_feature_casefold(param);
1093                 } else if (!strcmp(token, "encoding_flags")) {
1094                         if (!arg) {
1095                                 r_usage++;
1096                                 continue;
1097                         }
1098                         encoding_flags = arg;
1099                 } else if (!strcmp(token, "orphan_file_size")) {
1100                         if (!arg) {
1101                                 r_usage++;
1102                                 badopt = token;
1103                                 continue;
1104                         }
1105                         orphan_file_blocks = parse_num_blocks2(arg,
1106                                                 fs_param.s_log_block_size);
1107                         if (orphan_file_blocks == 0) {
1108                                 fprintf(stderr,
1109                                         _("Invalid size of orphan file %s\n"),
1110                                         arg);
1111                                 r_usage++;
1112                                 continue;
1113                         }
1114                 } else {
1115                         r_usage++;
1116                         badopt = token;
1117                 }
1118         }
1119         if (r_usage) {
1120                 fprintf(stderr, _("\nBad option(s) specified: %s\n\n"
1121                         "Extended options are separated by commas, "
1122                         "and may take an argument which\n"
1123                         "\tis set off by an equals ('=') sign.\n\n"
1124                         "Valid extended options are:\n"
1125                         "\tmmp_update_interval=<interval>\n"
1126                         "\tnum_backup_sb=<0|1|2>\n"
1127                         "\tstride=<RAID per-disk data chunk in blocks>\n"
1128                         "\tstripe-width=<RAID stride * data disks in blocks>\n"
1129                         "\toffset=<offset to create the file system>\n"
1130                         "\tresize=<resize maximum size in blocks>\n"
1131                         "\tpacked_meta_blocks=<0 to disable, 1 to enable>\n"
1132                         "\tlazy_itable_init=<0 to disable, 1 to enable>\n"
1133                         "\tlazy_journal_init=<0 to disable, 1 to enable>\n"
1134                         "\troot_owner=<uid of root dir>:<gid of root dir>\n"
1135                         "\ttest_fs\n"
1136                         "\tdiscard\n"
1137                         "\tnodiscard\n"
1138                         "\tencoding=<encoding>\n"
1139                         "\tencoding_flags=<flags>\n"
1140                         "\tquotatype=<quota type(s) to be enabled>\n"
1141                         "\tassume_storage_prezeroed=<0 to disable, 1 to enable>\n\n"),
1142                         badopt ? badopt : "");
1143                 free(buf);
1144                 exit(1);
1145         }
1146         if (param->s_raid_stride &&
1147             (param->s_raid_stripe_width % param->s_raid_stride) != 0)
1148                 fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even "
1149                                   "multiple of stride %u.\n\n"),
1150                         param->s_raid_stripe_width, param->s_raid_stride);
1151
1152         if (ext2fs_has_feature_casefold(param)) {
1153                 param->s_encoding_flags =
1154                         e2p_get_encoding_flags(param->s_encoding);
1155
1156                 if (encoding_flags &&
1157                     e2p_str2encoding_flags(param->s_encoding, encoding_flags,
1158                                            &param->s_encoding_flags)) {
1159                         fprintf(stderr, _("error: Invalid encoding flag: %s\n"),
1160                                 encoding_flags);
1161                         free(buf);
1162                         exit(1);
1163                 }
1164         } else if (encoding_flags) {
1165                 fprintf(stderr, _("error: An encoding must be explicitly "
1166                                   "specified when passing encoding-flags\n"));
1167                 free(buf);
1168                 exit(1);
1169         }
1170
1171         free(buf);
1172 }
1173
1174 static __u32 ok_features[3] = {
1175         /* Compat */
1176         EXT3_FEATURE_COMPAT_HAS_JOURNAL |
1177                 EXT2_FEATURE_COMPAT_RESIZE_INODE |
1178                 EXT2_FEATURE_COMPAT_DIR_INDEX |
1179                 EXT2_FEATURE_COMPAT_EXT_ATTR |
1180                 EXT4_FEATURE_COMPAT_SPARSE_SUPER2 |
1181                 EXT4_FEATURE_COMPAT_FAST_COMMIT |
1182                 EXT4_FEATURE_COMPAT_STABLE_INODES |
1183                 EXT4_FEATURE_COMPAT_ORPHAN_FILE,
1184         /* Incompat */
1185         EXT2_FEATURE_INCOMPAT_FILETYPE|
1186                 EXT3_FEATURE_INCOMPAT_EXTENTS|
1187                 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
1188                 EXT2_FEATURE_INCOMPAT_META_BG|
1189                 EXT4_FEATURE_INCOMPAT_FLEX_BG|
1190                 EXT4_FEATURE_INCOMPAT_EA_INODE|
1191                 EXT4_FEATURE_INCOMPAT_MMP |
1192                 EXT4_FEATURE_INCOMPAT_64BIT|
1193                 EXT4_FEATURE_INCOMPAT_INLINE_DATA|
1194                 EXT4_FEATURE_INCOMPAT_ENCRYPT |
1195                 EXT4_FEATURE_INCOMPAT_CASEFOLD |
1196                 EXT4_FEATURE_INCOMPAT_CSUM_SEED |
1197                 EXT4_FEATURE_INCOMPAT_LARGEDIR,
1198         /* R/O compat */
1199         EXT2_FEATURE_RO_COMPAT_LARGE_FILE|
1200                 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
1201                 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
1202                 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
1203                 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|
1204                 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
1205                 EXT4_FEATURE_RO_COMPAT_BIGALLOC|
1206                 EXT4_FEATURE_RO_COMPAT_QUOTA|
1207                 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|
1208                 EXT4_FEATURE_RO_COMPAT_PROJECT|
1209                 EXT4_FEATURE_RO_COMPAT_VERITY
1210 };
1211
1212
1213 static void syntax_err_report(const char *filename, long err, int line_num)
1214 {
1215         fprintf(stderr,
1216                 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"),
1217                 filename, line_num, error_message(err));
1218         exit(1);
1219 }
1220
1221 static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 };
1222
1223 static void edit_feature(const char *str, __u32 *compat_array)
1224 {
1225         if (!str)
1226                 return;
1227
1228         if (e2p_edit_feature(str, compat_array, ok_features)) {
1229                 fprintf(stderr, _("Invalid filesystem option set: %s\n"),
1230                         str);
1231                 exit(1);
1232         }
1233 }
1234
1235 static void edit_mntopts(const char *str, __u32 *mntopts)
1236 {
1237         if (!str)
1238                 return;
1239
1240         if (e2p_edit_mntopts(str, mntopts, ~0)) {
1241                 fprintf(stderr, _("Invalid mount option set: %s\n"),
1242                         str);
1243                 exit(1);
1244         }
1245 }
1246
1247 struct str_list {
1248         char **list;
1249         int num;
1250         int max;
1251 };
1252
1253 static errcode_t init_list(struct str_list *sl)
1254 {
1255         sl->num = 0;
1256         sl->max = 1;
1257         sl->list = malloc((sl->max+1) * sizeof(char *));
1258         if (!sl->list)
1259                 return ENOMEM;
1260         sl->list[0] = 0;
1261         return 0;
1262 }
1263
1264 static errcode_t push_string(struct str_list *sl, const char *str)
1265 {
1266         char **new_list;
1267
1268         if (sl->num >= sl->max) {
1269                 sl->max += 2;
1270                 new_list = realloc(sl->list, (sl->max+1) * sizeof(char *));
1271                 if (!new_list)
1272                         return ENOMEM;
1273                 sl->list = new_list;
1274         }
1275         sl->list[sl->num] = malloc(strlen(str)+1);
1276         if (sl->list[sl->num] == 0)
1277                 return ENOMEM;
1278         strcpy(sl->list[sl->num], str);
1279         sl->num++;
1280         sl->list[sl->num] = 0;
1281         return 0;
1282 }
1283
1284 static void print_str_list(char **list)
1285 {
1286         char **cpp;
1287
1288         for (cpp = list; *cpp; cpp++) {
1289                 printf("'%s'", *cpp);
1290                 if (cpp[1])
1291                         fputs(", ", stdout);
1292         }
1293         fputc('\n', stdout);
1294 }
1295
1296 /*
1297  * Return TRUE if the profile has the given subsection
1298  */
1299 static int profile_has_subsection(profile_t prof, const char *section,
1300                                   const char *subsection)
1301 {
1302         void                    *state;
1303         const char              *names[4];
1304         char                    *name;
1305         int                     ret = 0;
1306
1307         names[0] = section;
1308         names[1] = subsection;
1309         names[2] = 0;
1310
1311         if (profile_iterator_create(prof, names,
1312                                     PROFILE_ITER_LIST_SECTION |
1313                                     PROFILE_ITER_RELATIONS_ONLY, &state))
1314                 return 0;
1315
1316         if ((profile_iterator(&state, &name, 0) == 0) && name) {
1317                 free(name);
1318                 ret = 1;
1319         }
1320
1321         profile_iterator_free(&state);
1322         return ret;
1323 }
1324
1325 static char **parse_fs_type(const char *fs_type,
1326                             const char *usage_types,
1327                             struct ext2_super_block *sb,
1328                             blk64_t fs_blocks_count,
1329                             char *progname)
1330 {
1331         const char      *ext_type = 0;
1332         char            *parse_str;
1333         char            *profile_type = 0;
1334         char            *cp, *t;
1335         const char      *size_type;
1336         struct str_list list;
1337         unsigned long long meg;
1338         int             is_hurd = for_hurd(creator_os);
1339
1340         if (init_list(&list))
1341                 return 0;
1342
1343         if (fs_type)
1344                 ext_type = fs_type;
1345         else if (is_hurd)
1346                 ext_type = "ext2";
1347         else if (!strcmp(program_name, "mke3fs"))
1348                 ext_type = "ext3";
1349         else if (!strcmp(program_name, "mke4fs"))
1350                 ext_type = "ext4";
1351         else if (progname) {
1352                 ext_type = strrchr(progname, '/');
1353                 if (ext_type)
1354                         ext_type++;
1355                 else
1356                         ext_type = progname;
1357
1358                 if (!strncmp(ext_type, "mkfs.", 5)) {
1359                         ext_type += 5;
1360                         if (ext_type[0] == 0)
1361                                 ext_type = 0;
1362                 } else
1363                         ext_type = 0;
1364         }
1365
1366         if (!ext_type) {
1367                 profile_get_string(profile, "defaults", "fs_type", 0,
1368                                    "ext2", &profile_type);
1369                 ext_type = profile_type;
1370                 if (!strcmp(ext_type, "ext2") && (journal_size != 0))
1371                         ext_type = "ext3";
1372         }
1373
1374
1375         if (!profile_has_subsection(profile, "fs_types", ext_type) &&
1376             strcmp(ext_type, "ext2")) {
1377                 printf(_("\nYour mke2fs.conf file does not define the "
1378                          "%s filesystem type.\n"), ext_type);
1379                 if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") ||
1380                     !strcmp(ext_type, "ext4dev")) {
1381                         printf("%s", _("You probably need to install an "
1382                                        "updated mke2fs.conf file.\n\n"));
1383                 }
1384                 if (!force) {
1385                         printf("%s", _("Aborting...\n"));
1386                         exit(1);
1387                 }
1388         }
1389
1390         meg = (1024 * 1024) / EXT2_BLOCK_SIZE(sb);
1391         if (fs_blocks_count < 3 * meg)
1392                 size_type = "floppy";
1393         else if (fs_blocks_count < 512 * meg)
1394                 size_type = "small";
1395         else if (fs_blocks_count < 4 * 1024 * 1024 * meg)
1396                 size_type = "default";
1397         else if (fs_blocks_count < 16 * 1024 * 1024 * meg)
1398                 size_type = "big";
1399         else
1400                 size_type = "huge";
1401
1402         if (!usage_types)
1403                 usage_types = size_type;
1404
1405         parse_str = malloc(strlen(usage_types)+1);
1406         if (!parse_str) {
1407                 free(profile_type);
1408                 free(list.list);
1409                 return 0;
1410         }
1411         strcpy(parse_str, usage_types);
1412
1413         if (ext_type)
1414                 push_string(&list, ext_type);
1415         cp = parse_str;
1416         while (1) {
1417                 t = strchr(cp, ',');
1418                 if (t)
1419                         *t = '\0';
1420
1421                 if (*cp) {
1422                         if (profile_has_subsection(profile, "fs_types", cp))
1423                                 push_string(&list, cp);
1424                         else if (strcmp(cp, "default") != 0)
1425                                 fprintf(stderr,
1426                                         _("\nWarning: the fs_type %s is not "
1427                                           "defined in mke2fs.conf\n\n"),
1428                                         cp);
1429                 }
1430                 if (t)
1431                         cp = t+1;
1432                 else
1433                         break;
1434         }
1435         free(parse_str);
1436         free(profile_type);
1437         if (is_hurd)
1438                 push_string(&list, "hurd");
1439         return (list.list);
1440 }
1441
1442 char *get_string_from_profile(char **types, const char *opt,
1443                                      const char *def_val)
1444 {
1445         char *ret = 0;
1446         int i;
1447
1448         for (i=0; types[i]; i++);
1449         for (i-=1; i >=0 ; i--) {
1450                 profile_get_string(profile, "fs_types", types[i],
1451                                    opt, 0, &ret);
1452                 if (ret)
1453                         return ret;
1454         }
1455         profile_get_string(profile, "defaults", opt, 0, def_val, &ret);
1456         return (ret);
1457 }
1458
1459 int get_int_from_profile(char **types, const char *opt, int def_val)
1460 {
1461         int ret;
1462         char **cpp;
1463
1464         profile_get_integer(profile, "defaults", opt, 0, def_val, &ret);
1465         for (cpp = types; *cpp; cpp++)
1466                 profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret);
1467         return ret;
1468 }
1469
1470 static unsigned int get_uint_from_profile(char **types, const char *opt,
1471                                         unsigned int def_val)
1472 {
1473         unsigned int ret;
1474         char **cpp;
1475
1476         profile_get_uint(profile, "defaults", opt, 0, def_val, &ret);
1477         for (cpp = types; *cpp; cpp++)
1478                 profile_get_uint(profile, "fs_types", *cpp, opt, ret, &ret);
1479         return ret;
1480 }
1481
1482 static double get_double_from_profile(char **types, const char *opt,
1483                                       double def_val)
1484 {
1485         double ret;
1486         char **cpp;
1487
1488         profile_get_double(profile, "defaults", opt, 0, def_val, &ret);
1489         for (cpp = types; *cpp; cpp++)
1490                 profile_get_double(profile, "fs_types", *cpp, opt, ret, &ret);
1491         return ret;
1492 }
1493
1494 int get_bool_from_profile(char **types, const char *opt, int def_val)
1495 {
1496         int ret;
1497         char **cpp;
1498
1499         profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret);
1500         for (cpp = types; *cpp; cpp++)
1501                 profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret);
1502         return ret;
1503 }
1504
1505 extern const char *mke2fs_default_profile;
1506 static const char *default_files[] = { "<default>", 0 };
1507
1508 struct device_param {
1509         unsigned long min_io;           /* prefered minimum IO size */
1510         unsigned long opt_io;           /* optimal IO size */
1511         unsigned long alignment_offset; /* alignment offset wrt physical block size */
1512         unsigned int dax:1;             /* supports dax? */
1513 };
1514
1515 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1516 /*
1517  * Sets the geometry of a device (stripe/stride), and returns the
1518  * device's alignment offset, if any, or a negative error.
1519  */
1520 static int get_device_geometry(const char *file,
1521                                unsigned int blocksize,
1522                                unsigned int psector_size,
1523                                struct device_param *dev_param)
1524 {
1525         int rc = -1;
1526         blkid_probe pr;
1527         blkid_topology tp;
1528         struct stat statbuf;
1529
1530         memset(dev_param, 0, sizeof(*dev_param));
1531
1532         /* Nothing to do for a regular file */
1533         if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode))
1534                 return 0;
1535
1536         pr = blkid_new_probe_from_filename(file);
1537         if (!pr)
1538                 goto out;
1539
1540         tp = blkid_probe_get_topology(pr);
1541         if (!tp)
1542                 goto out;
1543
1544         dev_param->min_io = blkid_topology_get_minimum_io_size(tp);
1545         dev_param->opt_io = blkid_topology_get_optimal_io_size(tp);
1546         if ((dev_param->min_io == 0) && (psector_size > blocksize))
1547                 dev_param->min_io = psector_size;
1548         if ((dev_param->opt_io == 0) && dev_param->min_io > 0)
1549                 dev_param->opt_io = dev_param->min_io;
1550         if ((dev_param->opt_io == 0) && (psector_size > blocksize))
1551                 dev_param->opt_io = psector_size;
1552
1553         dev_param->alignment_offset = blkid_topology_get_alignment_offset(tp);
1554 #ifdef HAVE_BLKID_TOPOLOGY_GET_DAX
1555         dev_param->dax = blkid_topology_get_dax(tp);
1556 #endif
1557         rc = 0;
1558 out:
1559         blkid_free_probe(pr);
1560         return rc;
1561 }
1562 #endif
1563
1564 static void PRS(int argc, char *argv[])
1565 {
1566         int             b, c, flags;
1567         int             cluster_size = 0;
1568         char            *tmp, **cpp;
1569         int             explicit_fssize = 0;
1570         int             blocksize = 0;
1571         int             inode_ratio = 0;
1572         int             inode_size = 0;
1573         unsigned long   flex_bg_size = 0;
1574         double          reserved_ratio = -1.0;
1575         int             lsector_size = 0, psector_size = 0;
1576         int             show_version_only = 0, is_device = 0;
1577         unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */
1578         int             default_orphan_file = 0;
1579         errcode_t       retval;
1580         char *          oldpath = getenv("PATH");
1581         char *          extended_opts = 0;
1582         char *          fs_type = 0;
1583         char *          usage_types = 0;
1584         /*
1585          * NOTE: A few words about fs_blocks_count and blocksize:
1586          *
1587          * Initially, blocksize is set to zero, which implies 1024.
1588          * If -b is specified, blocksize is updated to the user's value.
1589          *
1590          * Next, the device size or the user's "blocks" command line argument
1591          * is used to set fs_blocks_count; the units are blocksize.
1592          *
1593          * Later, if blocksize hasn't been set and the profile specifies a
1594          * blocksize, then blocksize is updated and fs_blocks_count is scaled
1595          * appropriately.  Note the change in units!
1596          *
1597          * Finally, we complain about fs_blocks_count > 2^32 on a non-64bit fs.
1598          */
1599         blk64_t         fs_blocks_count = 0;
1600         long            sysval;
1601         int             s_opt = -1, r_opt = -1;
1602         char            *fs_features = 0;
1603         int             fs_features_size = 0;
1604         int             use_bsize;
1605         char            *newpath;
1606         int             pathlen = sizeof(PATH_SET) + 1;
1607 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1608         struct device_param dev_param;
1609 #endif
1610
1611         if (oldpath)
1612                 pathlen += strlen(oldpath);
1613         newpath = malloc(pathlen);
1614         if (!newpath) {
1615                 fprintf(stderr, "%s",
1616                         _("Couldn't allocate memory for new PATH.\n"));
1617                 exit(1);
1618         }
1619         strcpy(newpath, PATH_SET);
1620
1621         /* Update our PATH to include /sbin  */
1622         if (oldpath) {
1623                 strcat (newpath, ":");
1624                 strcat (newpath, oldpath);
1625         }
1626         putenv (newpath);
1627
1628         /* Determine the system page size if possible */
1629 #ifdef HAVE_SYSCONF
1630 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
1631 #define _SC_PAGESIZE _SC_PAGE_SIZE
1632 #endif
1633 #ifdef _SC_PAGESIZE
1634         sysval = sysconf(_SC_PAGESIZE);
1635         if (sysval > 0)
1636                 sys_page_size = sysval;
1637 #endif /* _SC_PAGESIZE */
1638 #endif /* HAVE_SYSCONF */
1639
1640         if ((tmp = getenv("MKE2FS_CONFIG")) != NULL)
1641                 config_fn[0] = tmp;
1642         profile_set_syntax_err_cb(syntax_err_report);
1643         retval = profile_init(config_fn, &profile);
1644         if (retval == ENOENT) {
1645                 retval = profile_init(default_files, &profile);
1646                 if (retval)
1647                         goto profile_error;
1648                 retval = profile_set_default(profile, mke2fs_default_profile);
1649                 if (retval)
1650                         goto profile_error;
1651         } else if (retval) {
1652 profile_error:
1653                 fprintf(stderr, _("Couldn't init profile successfully"
1654                                   " (error: %ld).\n"), retval);
1655                 exit(1);
1656         }
1657
1658         setbuf(stdout, NULL);
1659         setbuf(stderr, NULL);
1660         add_error_table(&et_ext2_error_table);
1661         add_error_table(&et_prof_error_table);
1662         memset(&fs_param, 0, sizeof(struct ext2_super_block));
1663         fs_param.s_rev_level = 1;  /* Create revision 1 filesystems now */
1664
1665         if (is_before_linux_ver(2, 2, 0))
1666                 fs_param.s_rev_level = 0;
1667
1668         if (argc && *argv) {
1669                 program_name = get_progname(*argv);
1670
1671                 /* If called as mkfs.ext3, create a journal inode */
1672                 if (!strcmp(program_name, "mkfs.ext3") ||
1673                     !strcmp(program_name, "mke3fs"))
1674                         journal_size = -1;
1675         }
1676
1677         while ((c = getopt (argc, argv,
1678                     "b:cd:e:g:i:jl:m:no:qr:s:t:vC:DE:FG:I:J:KL:M:N:O:R:ST:U:Vz:")) != EOF) {
1679                 switch (c) {
1680                 case 'b':
1681                         blocksize = parse_num_blocks2(optarg, -1);
1682                         b = (blocksize > 0) ? blocksize : -blocksize;
1683                         if (b < EXT2_MIN_BLOCK_SIZE ||
1684                             b > EXT2_MAX_BLOCK_SIZE) {
1685                                 com_err(program_name, 0,
1686                                         _("invalid block size - %s"), optarg);
1687                                 exit(1);
1688                         }
1689                         if (blocksize > 4096)
1690                                 fprintf(stderr, _("Warning: blocksize %d not "
1691                                                   "usable on most systems.\n"),
1692                                         blocksize);
1693                         if (blocksize > 0)
1694                                 fs_param.s_log_block_size =
1695                                         int_log2(blocksize >>
1696                                                  EXT2_MIN_BLOCK_LOG_SIZE);
1697                         break;
1698                 case 'c':       /* Check for bad blocks */
1699                         cflag++;
1700                         break;
1701                 case 'C':
1702                         cluster_size = parse_num_blocks2(optarg, -1);
1703                         if (cluster_size <= EXT2_MIN_CLUSTER_SIZE ||
1704                             cluster_size > EXT2_MAX_CLUSTER_SIZE) {
1705                                 com_err(program_name, 0,
1706                                         _("invalid cluster size - %s"),
1707                                         optarg);
1708                                 exit(1);
1709                         }
1710                         break;
1711                 case 'd':
1712                         src_root_dir = optarg;
1713                         break;
1714                 case 'D':
1715                         direct_io = 1;
1716                         break;
1717                 case 'R':
1718                         com_err(program_name, 0, "%s",
1719                                 _("'-R' is deprecated, use '-E' instead"));
1720                         /* fallthrough */
1721                 case 'E':
1722                         extended_opts = optarg;
1723                         break;
1724                 case 'e':
1725                         if (strcmp(optarg, "continue") == 0)
1726                                 errors_behavior = EXT2_ERRORS_CONTINUE;
1727                         else if (strcmp(optarg, "remount-ro") == 0)
1728                                 errors_behavior = EXT2_ERRORS_RO;
1729                         else if (strcmp(optarg, "panic") == 0)
1730                                 errors_behavior = EXT2_ERRORS_PANIC;
1731                         else {
1732                                 com_err(program_name, 0,
1733                                         _("bad error behavior - %s"),
1734                                         optarg);
1735                                 usage();
1736                         }
1737                         break;
1738                 case 'F':
1739                         force++;
1740                         break;
1741                 case 'g':
1742                         fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
1743                         if (*tmp) {
1744                                 com_err(program_name, 0, "%s",
1745                                 _("Illegal number for blocks per group"));
1746                                 exit(1);
1747                         }
1748                         if ((fs_param.s_blocks_per_group % 8) != 0) {
1749                                 com_err(program_name, 0, "%s",
1750                                 _("blocks per group must be multiple of 8"));
1751                                 exit(1);
1752                         }
1753                         break;
1754                 case 'G':
1755                         flex_bg_size = strtoul(optarg, &tmp, 0);
1756                         if (*tmp) {
1757                                 com_err(program_name, 0, "%s",
1758                                         _("Illegal number for flex_bg size"));
1759                                 exit(1);
1760                         }
1761                         if (flex_bg_size < 1 ||
1762                             (flex_bg_size & (flex_bg_size-1)) != 0) {
1763                                 com_err(program_name, 0, "%s",
1764                                         _("flex_bg size must be a power of 2"));
1765                                 exit(1);
1766                         }
1767                         if (flex_bg_size > MAX_32_NUM) {
1768                                 com_err(program_name, 0,
1769                                 _("flex_bg size (%lu) must be less than"
1770                                 " or equal to 2^31"), flex_bg_size);
1771                                 exit(1);
1772                         }
1773                         break;
1774                 case 'i':
1775                         inode_ratio = parse_num_blocks(optarg, -1);
1776                         if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
1777                             inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024) {
1778                                 com_err(program_name, 0,
1779                                         _("invalid inode ratio %s (min %d/max %d)"),
1780                                         optarg, EXT2_MIN_BLOCK_SIZE,
1781                                         EXT2_MAX_BLOCK_SIZE * 1024);
1782                                 exit(1);
1783                         }
1784                         break;
1785                 case 'I':
1786                         inode_size = strtoul(optarg, &tmp, 0);
1787                         if (*tmp) {
1788                                 com_err(program_name, 0,
1789                                         _("invalid inode size - %s"), optarg);
1790                                 exit(1);
1791                         }
1792                         break;
1793                 case 'j':
1794                         if (!journal_size)
1795                                 journal_size = -1;
1796                         if (!journal_fc_size)
1797                                 journal_fc_size = -1;
1798                         break;
1799                 case 'J':
1800                         parse_journal_opts(optarg);
1801                         break;
1802                 case 'K':
1803                         fprintf(stderr, "%s",
1804                                 _("Warning: -K option is deprecated and "
1805                                   "should not be used anymore. Use "
1806                                   "\'-E nodiscard\' extended option "
1807                                   "instead!\n"));
1808                         discard = 0;
1809                         break;
1810                 case 'l':
1811                         bad_blocks_filename = realloc(bad_blocks_filename,
1812                                                       strlen(optarg) + 1);
1813                         if (!bad_blocks_filename) {
1814                                 com_err(program_name, ENOMEM, "%s",
1815                                         _("in malloc for bad_blocks_filename"));
1816                                 exit(1);
1817                         }
1818                         strcpy(bad_blocks_filename, optarg);
1819                         break;
1820                 case 'L':
1821                         volume_label = optarg;
1822                         if (strlen(volume_label) > EXT2_LABEL_LEN) {
1823                                 volume_label[EXT2_LABEL_LEN] = '\0';
1824                                 fprintf(stderr, _("Warning: label too long; will be truncated to '%s'\n\n"),
1825                                         volume_label);
1826                         }
1827                         break;
1828                 case 'm':
1829                         reserved_ratio = strtod(optarg, &tmp);
1830                         if ( *tmp || reserved_ratio > 50 ||
1831                              reserved_ratio < 0) {
1832                                 com_err(program_name, 0,
1833                                         _("invalid reserved blocks percent - %s"),
1834                                         optarg);
1835                                 exit(1);
1836                         }
1837                         break;
1838                 case 'M':
1839                         mount_dir = optarg;
1840                         break;
1841                 case 'n':
1842                         noaction++;
1843                         break;
1844                 case 'N':
1845                         num_inodes = strtoul(optarg, &tmp, 0);
1846                         if (*tmp) {
1847                                 com_err(program_name, 0,
1848                                         _("bad num inodes - %s"), optarg);
1849                                         exit(1);
1850                         }
1851                         break;
1852                 case 'o':
1853                         creator_os = optarg;
1854                         break;
1855                 case 'O':
1856                         retval = ext2fs_resize_mem(fs_features_size,
1857                                    fs_features_size + 1 + strlen(optarg),
1858                                                    &fs_features);
1859                         if (retval) {
1860                                 com_err(program_name, retval,
1861                                      _("while allocating fs_feature string"));
1862                                 exit(1);
1863                         }
1864                         if (fs_features_size)
1865                                 strcat(fs_features, ",");
1866                         else
1867                                 fs_features[0] = 0;
1868                         strcat(fs_features, optarg);
1869                         fs_features_size += 1 + strlen(optarg);
1870                         break;
1871                 case 'q':
1872                         quiet = 1;
1873                         break;
1874                 case 'r':
1875                         r_opt = strtoul(optarg, &tmp, 0);
1876                         if (*tmp) {
1877                                 com_err(program_name, 0,
1878                                         _("bad revision level - %s"), optarg);
1879                                 exit(1);
1880                         }
1881                         if (r_opt > EXT2_MAX_SUPP_REV) {
1882                                 com_err(program_name, EXT2_ET_REV_TOO_HIGH,
1883                                         _("while trying to create revision %d"), r_opt);
1884                                 exit(1);
1885                         }
1886                         fs_param.s_rev_level = r_opt;
1887                         break;
1888                 case 's':       /* deprecated */
1889                         s_opt = atoi(optarg);
1890                         break;
1891                 case 'S':
1892                         super_only = 1;
1893                         break;
1894                 case 't':
1895                         if (fs_type) {
1896                                 com_err(program_name, 0, "%s",
1897                                     _("The -t option may only be used once"));
1898                                 exit(1);
1899                         }
1900                         fs_type = strdup(optarg);
1901                         break;
1902                 case 'T':
1903                         if (usage_types) {
1904                                 com_err(program_name, 0, "%s",
1905                                     _("The -T option may only be used once"));
1906                                 exit(1);
1907                         }
1908                         usage_types = strdup(optarg);
1909                         break;
1910                 case 'U':
1911                         fs_uuid = optarg;
1912                         break;
1913                 case 'v':
1914                         verbose = 1;
1915                         break;
1916                 case 'V':
1917                         /* Print version number and exit */
1918                         show_version_only++;
1919                         break;
1920                 case 'z':
1921                         undo_file = optarg;
1922                         break;
1923                 default:
1924                         usage();
1925                 }
1926         }
1927         if ((optind == argc) && !show_version_only)
1928                 usage();
1929         device_name = argv[optind++];
1930
1931         if (!quiet || show_version_only)
1932                 fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION,
1933                          E2FSPROGS_DATE);
1934
1935         if (show_version_only) {
1936                 fprintf(stderr, _("\tUsing %s\n"),
1937                         error_message(EXT2_ET_BASE));
1938                 exit(0);
1939         }
1940
1941         /*
1942          * If there's no blocksize specified and there is a journal
1943          * device, use it to figure out the blocksize
1944          */
1945         if (blocksize <= 0 && journal_device) {
1946                 ext2_filsys     jfs;
1947                 io_manager      io_ptr;
1948
1949 #ifdef CONFIG_TESTIO_DEBUG
1950                 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1951                         io_ptr = test_io_manager;
1952                         test_io_backing_manager = unix_io_manager;
1953                 } else
1954 #endif
1955                         io_ptr = unix_io_manager;
1956                 retval = ext2fs_open(journal_device,
1957                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
1958                                      0, io_ptr, &jfs);
1959                 if (retval) {
1960                         com_err(program_name, retval,
1961                                 _("while trying to open journal device %s\n"),
1962                                 journal_device);
1963                         exit(1);
1964                 }
1965                 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
1966                         com_err(program_name, 0,
1967                                 _("Journal dev blocksize (%d) smaller than "
1968                                   "minimum blocksize %d\n"), jfs->blocksize,
1969                                 -blocksize);
1970                         exit(1);
1971                 }
1972                 blocksize = jfs->blocksize;
1973                 printf(_("Using journal device's blocksize: %d\n"), blocksize);
1974                 fs_param.s_log_block_size =
1975                         int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1976                 ext2fs_close_free(&jfs);
1977         }
1978
1979         if (optind < argc) {
1980                 fs_blocks_count = parse_num_blocks2(argv[optind++],
1981                                                    fs_param.s_log_block_size);
1982                 if (!fs_blocks_count) {
1983                         com_err(program_name, 0,
1984                                 _("invalid blocks '%s' on device '%s'"),
1985                                 argv[optind - 1], device_name);
1986                         exit(1);
1987                 }
1988         }
1989         if (optind < argc)
1990                 usage();
1991
1992         profile_get_integer(profile, "options", "sync_kludge", 0, 0,
1993                             &sync_kludge);
1994         tmp = getenv("MKE2FS_SYNC");
1995         if (tmp)
1996                 sync_kludge = atoi(tmp);
1997
1998         profile_get_integer(profile, "options", "proceed_delay", 0, 0,
1999                             &proceed_delay);
2000
2001         if (fs_blocks_count)
2002                 explicit_fssize = 1;
2003
2004         check_mount(device_name, force, _("filesystem"));
2005
2006         /* Determine the size of the device (if possible) */
2007         if (noaction && fs_blocks_count) {
2008                 dev_size = fs_blocks_count;
2009                 retval = 0;
2010         } else
2011                 retval = ext2fs_get_device_size2(device_name,
2012                                                  EXT2_BLOCK_SIZE(&fs_param),
2013                                                  &dev_size);
2014         if (retval == ENOENT) {
2015                 int fd;
2016
2017                 if (!explicit_fssize) {
2018                         fprintf(stderr,
2019                                 _("The file %s does not exist and no "
2020                                   "size was specified.\n"), device_name);
2021                         exit(1);
2022                 }
2023                 fd = ext2fs_open_file(device_name,
2024                                       O_CREAT | O_WRONLY, 0666);
2025                 if (fd < 0) {
2026                         retval = errno;
2027                 } else {
2028                         dev_size = 0;
2029                         retval = 0;
2030                         close(fd);
2031                         printf(_("Creating regular file %s\n"), device_name);
2032                 }
2033         }
2034         if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
2035                 com_err(program_name, retval, "%s",
2036                         _("while trying to determine filesystem size"));
2037                 exit(1);
2038         }
2039         if (!fs_blocks_count) {
2040                 if (retval == EXT2_ET_UNIMPLEMENTED) {
2041                         com_err(program_name, 0, "%s",
2042                                 _("Couldn't determine device size; you "
2043                                 "must specify\nthe size of the "
2044                                 "filesystem\n"));
2045                         exit(1);
2046                 } else {
2047                         if (dev_size == 0) {
2048                                 com_err(program_name, 0, "%s",
2049                                 _("Device size reported to be zero.  "
2050                                   "Invalid partition specified, or\n\t"
2051                                   "partition table wasn't reread "
2052                                   "after running fdisk, due to\n\t"
2053                                   "a modified partition being busy "
2054                                   "and in use.  You may need to reboot\n\t"
2055                                   "to re-read your partition table.\n"
2056                                   ));
2057                                 exit(1);
2058                         }
2059                         fs_blocks_count = dev_size;
2060                         if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param))
2061                                 fs_blocks_count &= ~((blk64_t) ((sys_page_size /
2062                                              EXT2_BLOCK_SIZE(&fs_param))-1));
2063                 }
2064         } else if (!force && is_device && (fs_blocks_count > dev_size)) {
2065                 com_err(program_name, 0, "%s",
2066                         _("Filesystem larger than apparent device size."));
2067                 proceed_question(proceed_delay);
2068         }
2069
2070         if (!fs_type)
2071                 profile_get_string(profile, "devices", device_name,
2072                                    "fs_type", 0, &fs_type);
2073         if (!usage_types)
2074                 profile_get_string(profile, "devices", device_name,
2075                                    "usage_types", 0, &usage_types);
2076         if (!creator_os)
2077                 profile_get_string(profile, "defaults", "creator_os", 0,
2078                                    0, &creator_os);
2079
2080         /*
2081          * We have the file system (or device) size, so we can now
2082          * determine the appropriate file system types so the fs can
2083          * be appropriately configured.
2084          */
2085         fs_types = parse_fs_type(fs_type, usage_types, &fs_param,
2086                                  fs_blocks_count ? fs_blocks_count : dev_size,
2087                                  argv[0]);
2088         if (!fs_types) {
2089                 fprintf(stderr, "%s", _("Failed to parse fs types list\n"));
2090                 exit(1);
2091         }
2092
2093         /* Figure out what features should be enabled */
2094
2095         tmp = NULL;
2096         if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) {
2097                 tmp = get_string_from_profile(fs_types, "base_features",
2098                       "sparse_super,large_file,filetype,resize_inode,dir_index");
2099                 edit_feature(tmp, &fs_param.s_feature_compat);
2100                 free(tmp);
2101
2102                 /* And which mount options as well */
2103                 tmp = get_string_from_profile(fs_types, "default_mntopts",
2104                                               "acl,user_xattr");
2105                 edit_mntopts(tmp, &fs_param.s_default_mount_opts);
2106                 if (tmp)
2107                         free(tmp);
2108
2109                 for (cpp = fs_types; *cpp; cpp++) {
2110                         tmp = NULL;
2111                         profile_get_string(profile, "fs_types", *cpp,
2112                                            "features", "", &tmp);
2113                         if (tmp && *tmp)
2114                                 edit_feature(tmp, &fs_param.s_feature_compat);
2115                         if (tmp)
2116                                 free(tmp);
2117                 }
2118                 tmp = get_string_from_profile(fs_types, "default_features",
2119                                               "");
2120         }
2121         /* Mask off features which aren't supported by the Hurd */
2122         if (for_hurd(creator_os)) {
2123                 ext2fs_clear_feature_filetype(&fs_param);
2124                 ext2fs_clear_feature_huge_file(&fs_param);
2125                 ext2fs_clear_feature_metadata_csum(&fs_param);
2126                 ext2fs_clear_feature_ea_inode(&fs_param);
2127                 ext2fs_clear_feature_casefold(&fs_param);
2128         }
2129         if (!fs_features && tmp)
2130                 edit_feature(tmp, &fs_param.s_feature_compat);
2131         /*
2132          * Now all the defaults are incorporated in fs_param. Check the state
2133          * of orphan_file feature so that we know whether we should silently
2134          * disabled in case journal gets disabled.
2135          */
2136         if (ext2fs_has_feature_orphan_file(&fs_param))
2137                 default_orphan_file = 1;
2138         if (fs_features)
2139                 edit_feature(fs_features, &fs_param.s_feature_compat);
2140         /* Silently disable orphan_file if user chose fs without journal */
2141         if (default_orphan_file && !ext2fs_has_feature_journal(&fs_param))
2142                 ext2fs_clear_feature_orphan_file(&fs_param);
2143         if (tmp)
2144                 free(tmp);
2145         (void) ext2fs_free_mem(&fs_features);
2146         /*
2147          * If the user specified features incompatible with the Hurd, complain
2148          */
2149         if (for_hurd(creator_os)) {
2150                 if (ext2fs_has_feature_filetype(&fs_param)) {
2151                         fprintf(stderr, "%s", _("The HURD does not support the "
2152                                                 "filetype feature.\n"));
2153                         exit(1);
2154                 }
2155                 if (ext2fs_has_feature_huge_file(&fs_param)) {
2156                         fprintf(stderr, "%s", _("The HURD does not support the "
2157                                                 "huge_file feature.\n"));
2158                         exit(1);
2159                 }
2160                 if (ext2fs_has_feature_metadata_csum(&fs_param)) {
2161                         fprintf(stderr, "%s", _("The HURD does not support the "
2162                                                 "metadata_csum feature.\n"));
2163                         exit(1);
2164                 }
2165                 if (ext2fs_has_feature_ea_inode(&fs_param)) {
2166                         fprintf(stderr, "%s", _("The HURD does not support the "
2167                                                 "ea_inode feature.\n"));
2168                         exit(1);
2169                 }
2170         }
2171
2172         /* Get the hardware sector sizes, if available */
2173         retval = ext2fs_get_device_sectsize(device_name, &lsector_size);
2174         if (retval) {
2175                 com_err(program_name, retval, "%s",
2176                         _("while trying to determine hardware sector size"));
2177                 exit(1);
2178         }
2179         retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size);
2180         if (retval) {
2181                 com_err(program_name, retval, "%s",
2182                         _("while trying to determine physical sector size"));
2183                 exit(1);
2184         }
2185
2186         tmp = getenv("MKE2FS_DEVICE_SECTSIZE");
2187         if (tmp != NULL)
2188                 lsector_size = atoi(tmp);
2189         tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE");
2190         if (tmp != NULL)
2191                 psector_size = atoi(tmp);
2192
2193         /* Older kernels may not have physical/logical distinction */
2194         if (!psector_size)
2195                 psector_size = lsector_size;
2196
2197         if (blocksize <= 0) {
2198                 use_bsize = get_int_from_profile(fs_types, "blocksize", 4096);
2199
2200                 if (use_bsize == -1) {
2201                         use_bsize = sys_page_size;
2202                         if (is_before_linux_ver(2, 6, 0) && use_bsize > 4096)
2203                                 use_bsize = 4096;
2204                 }
2205                 if (lsector_size && use_bsize < lsector_size)
2206                         use_bsize = lsector_size;
2207                 if ((blocksize < 0) && (use_bsize < (-blocksize)))
2208                         use_bsize = -blocksize;
2209                 blocksize = use_bsize;
2210                 fs_blocks_count /= (blocksize / 1024);
2211         } else {
2212                 if (blocksize < lsector_size) {                 /* Impossible */
2213                         com_err(program_name, EINVAL, "%s",
2214                                 _("while setting blocksize; too small "
2215                                   "for device\n"));
2216                         exit(1);
2217                 } else if ((blocksize < psector_size) &&
2218                            (psector_size <= sys_page_size)) {   /* Suboptimal */
2219                         fprintf(stderr, _("Warning: specified blocksize %d is "
2220                                 "less than device physical sectorsize %d\n"),
2221                                 blocksize, psector_size);
2222                 }
2223         }
2224
2225         fs_param.s_log_block_size =
2226                 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
2227
2228         /*
2229          * We now need to do a sanity check of fs_blocks_count for
2230          * 32-bit vs 64-bit block number support.
2231          */
2232         if ((fs_blocks_count > MAX_32_NUM) &&
2233             ext2fs_has_feature_64bit(&fs_param))
2234                 ext2fs_clear_feature_resize_inode(&fs_param);
2235         if ((fs_blocks_count > MAX_32_NUM) &&
2236             !ext2fs_has_feature_64bit(&fs_param) &&
2237             get_bool_from_profile(fs_types, "auto_64-bit_support", 0)) {
2238                 ext2fs_set_feature_64bit(&fs_param);
2239                 ext2fs_clear_feature_resize_inode(&fs_param);
2240         }
2241         if ((fs_blocks_count > MAX_32_NUM) &&
2242             !ext2fs_has_feature_64bit(&fs_param)) {
2243                 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2244                                   "too big to be expressed\n\t"
2245                                   "in 32 bits using a blocksize of %d.\n"),
2246                         program_name, (unsigned long long) fs_blocks_count,
2247                         device_name, EXT2_BLOCK_SIZE(&fs_param));
2248                 exit(1);
2249         }
2250         /*
2251          * Guard against group descriptor count overflowing... Mostly to avoid
2252          * strange results for absurdly large devices.  This is in log2:
2253          * (blocksize) * (bits per byte) * (maximum number of block groups)
2254          */
2255         if (fs_blocks_count >
2256             (1ULL << (EXT2_BLOCK_SIZE_BITS(&fs_param) + 3 + 32)) - 1) {
2257                 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2258                                   "too big to create\n\t"
2259                                   "a filesystem using a blocksize of %d.\n"),
2260                         program_name, (unsigned long long) fs_blocks_count,
2261                         device_name, EXT2_BLOCK_SIZE(&fs_param));
2262                 exit(1);
2263         }
2264
2265         ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2266
2267         if (ext2fs_has_feature_journal_dev(&fs_param)) {
2268                 int i;
2269
2270                 for (i=0; fs_types[i]; i++) {
2271                         free(fs_types[i]);
2272                         fs_types[i] = 0;
2273                 }
2274                 fs_types[0] = strdup("journal");
2275                 fs_types[1] = 0;
2276         }
2277
2278         if (verbose) {
2279                 fputs(_("fs_types for mke2fs.conf resolution: "), stdout);
2280                 print_str_list(fs_types);
2281         }
2282
2283         if (r_opt == EXT2_GOOD_OLD_REV &&
2284             (fs_param.s_feature_compat || fs_param.s_feature_incompat ||
2285              fs_param.s_feature_ro_compat)) {
2286                 fprintf(stderr, "%s", _("Filesystem features not supported "
2287                                         "with revision 0 filesystems\n"));
2288                 exit(1);
2289         }
2290
2291         if (s_opt > 0) {
2292                 if (r_opt == EXT2_GOOD_OLD_REV) {
2293                         fprintf(stderr, "%s",
2294                                 _("Sparse superblocks not supported "
2295                                   "with revision 0 filesystems\n"));
2296                         exit(1);
2297                 }
2298                 ext2fs_set_feature_sparse_super(&fs_param);
2299         } else if (s_opt == 0)
2300                 ext2fs_clear_feature_sparse_super(&fs_param);
2301
2302         if (journal_size != 0) {
2303                 if (r_opt == EXT2_GOOD_OLD_REV) {
2304                         fprintf(stderr, "%s", _("Journals not supported with "
2305                                                 "revision 0 filesystems\n"));
2306                         exit(1);
2307                 }
2308                 ext2fs_set_feature_journal(&fs_param);
2309         }
2310
2311         /* Get reserved_ratio from profile if not specified on cmd line. */
2312         if (reserved_ratio < 0.0) {
2313                 reserved_ratio = get_double_from_profile(
2314                                         fs_types, "reserved_ratio", 5.0);
2315                 if (reserved_ratio > 50 || reserved_ratio < 0) {
2316                         com_err(program_name, 0,
2317                                 _("invalid reserved blocks percent - %lf"),
2318                                 reserved_ratio);
2319                         exit(1);
2320                 }
2321         }
2322
2323         if (ext2fs_has_feature_journal_dev(&fs_param)) {
2324                 reserved_ratio = 0;
2325                 fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
2326                 fs_param.s_feature_compat = 0;
2327                 fs_param.s_feature_ro_compat &=
2328                                         EXT4_FEATURE_RO_COMPAT_METADATA_CSUM;
2329         }
2330
2331         /* Check the user's mkfs options for 64bit */
2332         if (ext2fs_has_feature_64bit(&fs_param) &&
2333             !ext2fs_has_feature_extents(&fs_param)) {
2334                 printf("%s", _("Extents MUST be enabled for a 64-bit "
2335                                "filesystem.  Pass -O extents to rectify.\n"));
2336                 exit(1);
2337         }
2338
2339         /* Set first meta blockgroup via an environment variable */
2340         /* (this is mostly for debugging purposes) */
2341         if (ext2fs_has_feature_meta_bg(&fs_param) &&
2342             (tmp = getenv("MKE2FS_FIRST_META_BG")))
2343                 fs_param.s_first_meta_bg = atoi(tmp);
2344         if (ext2fs_has_feature_bigalloc(&fs_param)) {
2345                 if (!cluster_size)
2346                         cluster_size = get_int_from_profile(fs_types,
2347                                                             "cluster_size",
2348                                                             blocksize*16);
2349                 fs_param.s_log_cluster_size =
2350                         int_log2(cluster_size >> EXT2_MIN_CLUSTER_LOG_SIZE);
2351                 if (fs_param.s_log_cluster_size &&
2352                     fs_param.s_log_cluster_size < fs_param.s_log_block_size) {
2353                         com_err(program_name, 0, "%s",
2354                                 _("The cluster size may not be "
2355                                   "smaller than the block size.\n"));
2356                         exit(1);
2357                 }
2358         } else if (cluster_size) {
2359                 com_err(program_name, 0, "%s",
2360                         _("specifying a cluster size requires the "
2361                           "bigalloc feature"));
2362                 exit(1);
2363         } else
2364                 fs_param.s_log_cluster_size = fs_param.s_log_block_size;
2365
2366         if (inode_ratio == 0) {
2367                 inode_ratio = get_int_from_profile(fs_types, "inode_ratio",
2368                                                    8192);
2369                 if (inode_ratio < blocksize)
2370                         inode_ratio = blocksize;
2371                 if (inode_ratio < EXT2_CLUSTER_SIZE(&fs_param))
2372                         inode_ratio = EXT2_CLUSTER_SIZE(&fs_param);
2373         }
2374
2375 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
2376         retval = get_device_geometry(device_name, blocksize,
2377                                      psector_size, &dev_param);
2378         if (retval < 0) {
2379                 fprintf(stderr,
2380                         _("warning: Unable to get device geometry for %s\n"),
2381                         device_name);
2382         } else {
2383                 /* setting stripe/stride to blocksize is pointless */
2384                 if (dev_param.min_io > (unsigned) blocksize)
2385                         fs_param.s_raid_stride = dev_param.min_io / blocksize;
2386                 if (dev_param.opt_io > (unsigned) blocksize) {
2387                         fs_param.s_raid_stripe_width =
2388                                                 dev_param.opt_io / blocksize;
2389                 }
2390
2391                 if (dev_param.alignment_offset) {
2392                         printf(_("%s alignment is offset by %lu bytes.\n"),
2393                                device_name, dev_param.alignment_offset);
2394                         printf(_("This may result in very poor performance, "
2395                                   "(re)-partitioning suggested.\n"));
2396                 }
2397
2398                 if (dev_param.dax && blocksize != sys_page_size) {
2399                         fprintf(stderr,
2400                                 _("%s is capable of DAX but current block size "
2401                                   "%u is different from system page size %u so "
2402                                   "filesystem will not support DAX.\n"),
2403                                 device_name, blocksize, sys_page_size);
2404                 }
2405         }
2406 #endif
2407
2408         num_backups = get_int_from_profile(fs_types, "num_backup_sb", 2);
2409
2410         blocksize = EXT2_BLOCK_SIZE(&fs_param);
2411
2412         /*
2413          * Initialize s_desc_size so that the parse_extended_opts()
2414          * can correctly handle "-E resize=NNN" if the 64-bit option
2415          * is set.
2416          */
2417         if (ext2fs_has_feature_64bit(&fs_param))
2418                 fs_param.s_desc_size = EXT2_MIN_DESC_SIZE_64BIT;
2419
2420         /* This check should happen beyond the last assignment to blocksize */
2421         if (blocksize > sys_page_size) {
2422                 if (!force) {
2423                         com_err(program_name, 0,
2424                                 _("%d-byte blocks too big for system (max %d)"),
2425                                 blocksize, sys_page_size);
2426                         proceed_question(proceed_delay);
2427                 }
2428                 fprintf(stderr, _("Warning: %d-byte blocks too big for system "
2429                                   "(max %d), forced to continue\n"),
2430                         blocksize, sys_page_size);
2431         }
2432
2433         /* Metadata checksumming wasn't totally stable before 3.18. */
2434         if (is_before_linux_ver(3, 18, 0) &&
2435             ext2fs_has_feature_metadata_csum(&fs_param))
2436                 fprintf(stderr, _("Suggestion: Use Linux kernel >= 3.18 for "
2437                         "improved stability of the metadata and journal "
2438                         "checksum features.\n"));
2439
2440         /*
2441          * On newer kernels we do have lazy_itable_init support. So pick the
2442          * right default in case ext4 module is not loaded.
2443          */
2444         if (is_before_linux_ver(2, 6, 37))
2445                 lazy_itable_init = 0;
2446         else
2447                 lazy_itable_init = 1;
2448
2449         if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0)
2450                 lazy_itable_init = 1;
2451
2452         lazy_itable_init = get_bool_from_profile(fs_types,
2453                                                  "lazy_itable_init",
2454                                                  lazy_itable_init);
2455         discard = get_bool_from_profile(fs_types, "discard" , discard);
2456         journal_flags |= get_bool_from_profile(fs_types,
2457                                                "lazy_journal_init", 0) ?
2458                                                EXT2_MKJOURNAL_LAZYINIT : 0;
2459         journal_flags |= EXT2_MKJOURNAL_NO_MNT_CHECK;
2460
2461         if (!journal_location_string)
2462                 journal_location_string = get_string_from_profile(fs_types,
2463                                                 "journal_location", "");
2464         if ((journal_location == ~0ULL) && journal_location_string &&
2465             *journal_location_string)
2466                 journal_location = parse_num_blocks2(journal_location_string,
2467                                                 fs_param.s_log_block_size);
2468         free(journal_location_string);
2469
2470         packed_meta_blocks = get_bool_from_profile(fs_types,
2471                                                    "packed_meta_blocks", 0);
2472         if (packed_meta_blocks)
2473                 journal_location = 0;
2474
2475         if (ext2fs_has_feature_casefold(&fs_param)) {
2476                 char *ef, *en = get_string_from_profile(fs_types,
2477                                                         "encoding", "utf8");
2478                 int encoding = e2p_str2encoding(en);
2479
2480                 if (encoding < 0) {
2481                         com_err(program_name, 0,
2482                                 _("Unknown filename encoding from profile: %s"),
2483                                 en);
2484                         exit(1);
2485                 }
2486                 free(en);
2487                 fs_param.s_encoding = encoding;
2488                 ef = get_string_from_profile(fs_types, "encoding_flags", NULL);
2489                 if (ef) {
2490                         if (e2p_str2encoding_flags(encoding, ef,
2491                                         &fs_param.s_encoding_flags) < 0) {
2492                                 com_err(program_name, 0,
2493                         _("Unknown encoding flags from profile: %s"), ef);
2494                                 exit(1);
2495                         }
2496                         free(ef);
2497                 } else
2498                         fs_param.s_encoding_flags =
2499                                 e2p_get_encoding_flags(encoding);
2500         }
2501
2502         /* Get options from profile */
2503         for (cpp = fs_types; *cpp; cpp++) {
2504                 tmp = NULL;
2505                 profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp);
2506                         if (tmp && *tmp)
2507                                 parse_extended_opts(&fs_param, tmp);
2508                         free(tmp);
2509         }
2510
2511         if (extended_opts)
2512                 parse_extended_opts(&fs_param, extended_opts);
2513
2514         if (explicit_fssize == 0 && offset > 0) {
2515                 fs_blocks_count -= offset / EXT2_BLOCK_SIZE(&fs_param);
2516                 ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2517                 fprintf(stderr,
2518                         _("\nWarning: offset specified without an "
2519                           "explicit file system size.\n"
2520                           "Creating a file system with %llu blocks "
2521                           "but this might\n"
2522                           "not be what you want.\n\n"),
2523                         (unsigned long long) fs_blocks_count);
2524         }
2525
2526         if (quotatype_bits & QUOTA_PRJ_BIT)
2527                 ext2fs_set_feature_project(&fs_param);
2528
2529         if (ext2fs_has_feature_project(&fs_param)) {
2530                 quotatype_bits |= QUOTA_PRJ_BIT;
2531                 if (inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2532                         com_err(program_name, 0,
2533                                 _("%d byte inodes are too small for "
2534                                   "project quota"),
2535                                 inode_size);
2536                         exit(1);
2537                 }
2538                 if (inode_size == 0) {
2539                         inode_size = get_int_from_profile(fs_types,
2540                                                           "inode_size", 0);
2541                         if (inode_size <= EXT2_GOOD_OLD_INODE_SIZE*2)
2542                                 inode_size = EXT2_GOOD_OLD_INODE_SIZE*2;
2543                 }
2544         }
2545
2546         /* Don't allow user to set both metadata_csum and uninit_bg bits. */
2547         if (ext2fs_has_feature_metadata_csum(&fs_param) &&
2548             ext2fs_has_feature_gdt_csum(&fs_param))
2549                 ext2fs_clear_feature_gdt_csum(&fs_param);
2550
2551         /* Can't support bigalloc feature without extents feature */
2552         if (ext2fs_has_feature_bigalloc(&fs_param) &&
2553             !ext2fs_has_feature_extents(&fs_param)) {
2554                 com_err(program_name, 0, "%s",
2555                         _("Can't support bigalloc feature without "
2556                           "extents feature"));
2557                 exit(1);
2558         }
2559
2560         if (ext2fs_has_feature_meta_bg(&fs_param) &&
2561             ext2fs_has_feature_resize_inode(&fs_param)) {
2562                 fprintf(stderr, "%s", _("The resize_inode and meta_bg "
2563                                         "features are not compatible.\n"
2564                                         "They can not be both enabled "
2565                                         "simultaneously.\n"));
2566                 exit(1);
2567         }
2568
2569         if (!quiet && ext2fs_has_feature_bigalloc(&fs_param) &&
2570             EXT2_CLUSTER_SIZE(&fs_param) > 16 * EXT2_BLOCK_SIZE(&fs_param))
2571                 fprintf(stderr, "%s", _("\nWarning: bigalloc file systems "
2572                                 "with a cluster size greater than\n"
2573                                 "16 times the block size is considered "
2574                                 "experimental\n"));
2575
2576         /*
2577          * Since sparse_super is the default, we would only have a problem
2578          * here if it was explicitly disabled.
2579          */
2580         if (ext2fs_has_feature_resize_inode(&fs_param) &&
2581             !ext2fs_has_feature_sparse_super(&fs_param)) {
2582                 com_err(program_name, 0, "%s",
2583                         _("reserved online resize blocks not supported "
2584                           "on non-sparse filesystem"));
2585                 exit(1);
2586         }
2587
2588         if (fs_param.s_blocks_per_group) {
2589                 if (fs_param.s_blocks_per_group < 256 ||
2590                     fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) {
2591                         com_err(program_name, 0, "%s",
2592                                 _("blocks per group count out of range"));
2593                         exit(1);
2594                 }
2595         }
2596
2597         /*
2598          * If the bigalloc feature is enabled, then the -g option will
2599          * specify the number of clusters per group.
2600          */
2601         if (ext2fs_has_feature_bigalloc(&fs_param)) {
2602                 fs_param.s_clusters_per_group = fs_param.s_blocks_per_group;
2603                 fs_param.s_blocks_per_group = 0;
2604         }
2605
2606         if (inode_size == 0)
2607                 inode_size = get_int_from_profile(fs_types, "inode_size", 0);
2608         if (!flex_bg_size && ext2fs_has_feature_flex_bg(&fs_param))
2609                 flex_bg_size = get_uint_from_profile(fs_types,
2610                                                      "flex_bg_size", 16);
2611         if (flex_bg_size) {
2612                 if (!ext2fs_has_feature_flex_bg(&fs_param)) {
2613                         com_err(program_name, 0, "%s",
2614                                 _("Flex_bg feature not enabled, so "
2615                                   "flex_bg size may not be specified"));
2616                         exit(1);
2617                 }
2618                 fs_param.s_log_groups_per_flex = int_log2(flex_bg_size);
2619         }
2620
2621         if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) {
2622                 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
2623                     inode_size > EXT2_BLOCK_SIZE(&fs_param) ||
2624                     inode_size & (inode_size - 1)) {
2625                         com_err(program_name, 0,
2626                                 _("invalid inode size %d (min %d/max %d)"),
2627                                 inode_size, EXT2_GOOD_OLD_INODE_SIZE,
2628                                 blocksize);
2629                         exit(1);
2630                 }
2631                 fs_param.s_inode_size = inode_size;
2632         }
2633
2634         /*
2635          * If inode size is 128 and inline data is enabled, we need
2636          * to notify users that inline data will never be useful.
2637          */
2638         if (ext2fs_has_feature_inline_data(&fs_param) &&
2639             fs_param.s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2640                 com_err(program_name, 0,
2641                         _("%d byte inodes are too small for inline data; "
2642                           "specify larger size"),
2643                         fs_param.s_inode_size);
2644                 exit(1);
2645         }
2646
2647         /*
2648          * Warn the user that filesystems with 128-byte inodes will
2649          * not work properly beyond 2038.  This can be suppressed via
2650          * a boolean in the mke2fs.conf file, and we will disable this
2651          * warning for file systems created for the GNU Hurd.
2652          */
2653         if (inode_size == EXT2_GOOD_OLD_INODE_SIZE &&
2654             get_bool_from_profile(fs_types, "warn_y2038_dates", 1))
2655                 printf(
2656 _("128-byte inodes cannot handle dates beyond 2038 and are deprecated\n"));
2657
2658         /* Make sure number of inodes specified will fit in 32 bits */
2659         if (num_inodes == 0) {
2660                 unsigned long long n;
2661                 n = ext2fs_blocks_count(&fs_param) * blocksize / inode_ratio;
2662                 if (n > MAX_32_NUM) {
2663                         if (ext2fs_has_feature_64bit(&fs_param))
2664                                 num_inodes = MAX_32_NUM;
2665                         else {
2666                                 com_err(program_name, 0,
2667                                         _("too many inodes (%llu), raise "
2668                                           "inode ratio?"),
2669                                         (unsigned long long) n);
2670                                 exit(1);
2671                         }
2672                 }
2673         } else if (num_inodes > MAX_32_NUM) {
2674                 com_err(program_name, 0,
2675                         _("too many inodes (%llu), specify < 2^32 inodes"),
2676                         (unsigned long long) num_inodes);
2677                 exit(1);
2678         }
2679         /*
2680          * Calculate number of inodes based on the inode ratio
2681          */
2682         fs_param.s_inodes_count = num_inodes ? num_inodes :
2683                 (ext2fs_blocks_count(&fs_param) * blocksize) / inode_ratio;
2684
2685         if ((((unsigned long long)fs_param.s_inodes_count) *
2686              (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >=
2687             ((ext2fs_blocks_count(&fs_param)) *
2688              EXT2_BLOCK_SIZE(&fs_param))) {
2689                 com_err(program_name, 0, _("inode_size (%u) * inodes_count "
2690                                           "(%u) too big for a\n\t"
2691                                           "filesystem with %llu blocks, "
2692                                           "specify higher inode_ratio (-i)\n\t"
2693                                           "or lower inode count (-N).\n"),
2694                         inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE,
2695                         fs_param.s_inodes_count,
2696                         (unsigned long long) ext2fs_blocks_count(&fs_param));
2697                 exit(1);
2698         }
2699
2700         /*
2701          * Calculate number of blocks to reserve
2702          */
2703         ext2fs_r_blocks_count_set(&fs_param, reserved_ratio *
2704                                   ext2fs_blocks_count(&fs_param) / 100.0);
2705
2706         if (ext2fs_has_feature_sparse_super2(&fs_param)) {
2707                 if (num_backups >= 1)
2708                         fs_param.s_backup_bgs[0] = 1;
2709                 if (num_backups >= 2)
2710                         fs_param.s_backup_bgs[1] = ~0;
2711         }
2712
2713         free(fs_type);
2714         free(usage_types);
2715
2716         /* The isatty() test is so we don't break existing scripts */
2717         flags = CREATE_FILE;
2718         if (isatty(0) && isatty(1) && !offset)
2719                 flags |= CHECK_FS_EXIST;
2720         if (!quiet)
2721                 flags |= VERBOSE_CREATE;
2722         if (!explicit_fssize)
2723                 flags |= NO_SIZE;
2724         if (!check_plausibility(device_name, flags, &is_device) && !force)
2725                 proceed_question(proceed_delay);
2726 }
2727
2728 static int should_do_undo(const char *name)
2729 {
2730         errcode_t retval;
2731         io_channel channel;
2732         __u16   s_magic;
2733         struct ext2_super_block super;
2734         io_manager manager = unix_io_manager;
2735         int csum_flag, force_undo;
2736
2737         csum_flag = ext2fs_has_feature_metadata_csum(&fs_param) ||
2738                     ext2fs_has_feature_gdt_csum(&fs_param);
2739         force_undo = get_int_from_profile(fs_types, "force_undo", 0);
2740         if (!force_undo && (!csum_flag || !lazy_itable_init))
2741                 return 0;
2742
2743         retval = manager->open(name, IO_FLAG_EXCLUSIVE,  &channel);
2744         if (retval) {
2745                 /*
2746                  * We don't handle error cases instead we
2747                  * declare that the file system doesn't exist
2748                  * and let the rest of mke2fs take care of
2749                  * error
2750                  */
2751                 retval = 0;
2752                 goto open_err_out;
2753         }
2754
2755         io_channel_set_blksize(channel, SUPERBLOCK_OFFSET);
2756         retval = io_channel_read_blk64(channel, 1, -SUPERBLOCK_SIZE, &super);
2757         if (retval) {
2758                 retval = 0;
2759                 goto err_out;
2760         }
2761
2762 #if defined(WORDS_BIGENDIAN)
2763         s_magic = ext2fs_swab16(super.s_magic);
2764 #else
2765         s_magic = super.s_magic;
2766 #endif
2767
2768         if (s_magic == EXT2_SUPER_MAGIC)
2769                 retval = 1;
2770
2771 err_out:
2772         io_channel_close(channel);
2773
2774 open_err_out:
2775
2776         return retval;
2777 }
2778
2779 static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr)
2780 {
2781         errcode_t retval = ENOMEM;
2782         char *tdb_dir = NULL, *tdb_file = NULL;
2783         char *dev_name, *tmp_name;
2784         int free_tdb_dir = 0;
2785
2786         /* (re)open a specific undo file */
2787         if (undo_file && undo_file[0] != 0) {
2788                 retval = set_undo_io_backing_manager(*io_ptr);
2789                 if (retval)
2790                         goto err;
2791                 *io_ptr = undo_io_manager;
2792                 retval = set_undo_io_backup_file(undo_file);
2793                 if (retval)
2794                         goto err;
2795                 printf(_("Overwriting existing filesystem; this can be undone "
2796                          "using the command:\n"
2797                          "    e2undo %s %s\n\n"), undo_file, name);
2798                 return retval;
2799         }
2800
2801         /*
2802          * Configuration via a conf file would be
2803          * nice
2804          */
2805         tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
2806         if (!tdb_dir) {
2807                 profile_get_string(profile, "defaults",
2808                                    "undo_dir", 0, "/var/lib/e2fsprogs",
2809                                    &tdb_dir);
2810                 free_tdb_dir = 1;
2811         }
2812
2813         if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
2814             access(tdb_dir, W_OK)) {
2815                 if (free_tdb_dir)
2816                         free(tdb_dir);
2817                 return 0;
2818         }
2819
2820         tmp_name = strdup(name);
2821         if (!tmp_name)
2822                 goto errout;
2823         dev_name = basename(tmp_name);
2824         tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
2825         if (!tdb_file) {
2826                 free(tmp_name);
2827                 goto errout;
2828         }
2829         sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, dev_name);
2830         free(tmp_name);
2831
2832         if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
2833                 retval = errno;
2834                 com_err(program_name, retval,
2835                         _("while trying to delete %s"), tdb_file);
2836                 goto errout;
2837         }
2838
2839         retval = set_undo_io_backing_manager(*io_ptr);
2840         if (retval)
2841                 goto errout;
2842         *io_ptr = undo_io_manager;
2843         retval = set_undo_io_backup_file(tdb_file);
2844         if (retval)
2845                 goto errout;
2846         printf(_("Overwriting existing filesystem; this can be undone "
2847                  "using the command:\n"
2848                  "    e2undo %s %s\n\n"), tdb_file, name);
2849
2850         if (free_tdb_dir)
2851                 free(tdb_dir);
2852         free(tdb_file);
2853         return 0;
2854
2855 errout:
2856         if (free_tdb_dir)
2857                 free(tdb_dir);
2858         free(tdb_file);
2859 err:
2860         com_err(program_name, retval, "%s",
2861                 _("while trying to setup undo file\n"));
2862         return retval;
2863 }
2864
2865 static int mke2fs_discard_device(ext2_filsys fs)
2866 {
2867         struct ext2fs_numeric_progress_struct progress;
2868         blk64_t blocks = ext2fs_blocks_count(fs->super);
2869         blk64_t count = DISCARD_STEP_MB;
2870         blk64_t cur = 0;
2871         int retval = 0;
2872
2873         /*
2874          * Let's try if discard really works on the device, so
2875          * we do not print numeric progress resulting in failure
2876          * afterwards.
2877          */
2878         retval = io_channel_discard(fs->io, 0, 1);
2879         if (retval)
2880                 return retval;
2881
2882         count *= (1024 * 1024);
2883         count /= fs->blocksize;
2884
2885         ext2fs_numeric_progress_init(fs, &progress,
2886                                      _("Discarding device blocks: "),
2887                                      blocks);
2888         while (cur < blocks) {
2889                 ext2fs_numeric_progress_update(fs, &progress, cur);
2890
2891                 if (cur + count > blocks)
2892                         count = blocks - cur;
2893
2894                 retval = io_channel_discard(fs->io, cur, count);
2895                 if (retval)
2896                         break;
2897                 cur += count;
2898         }
2899
2900         if (retval) {
2901                 ext2fs_numeric_progress_close(fs, &progress,
2902                                       _("failed - "));
2903                 if (!quiet)
2904                         printf("%s\n",error_message(retval));
2905         } else
2906                 ext2fs_numeric_progress_close(fs, &progress,
2907                                       _("done                            \n"));
2908
2909         return retval;
2910 }
2911
2912 static void fix_cluster_bg_counts(ext2_filsys fs)
2913 {
2914         blk64_t         block, num_blocks, last_block, next;
2915         blk64_t         tot_free = 0;
2916         errcode_t       retval;
2917         dgrp_t          group = 0;
2918         int             grp_free = 0;
2919
2920         num_blocks = ext2fs_blocks_count(fs->super);
2921         last_block = ext2fs_group_last_block2(fs, group);
2922         block = fs->super->s_first_data_block;
2923         while (block < num_blocks) {
2924                 retval = ext2fs_find_first_zero_block_bitmap2(fs->block_map,
2925                                                 block, last_block, &next);
2926                 if (retval == 0)
2927                         block = next;
2928                 else {
2929                         block = last_block + 1;
2930                         goto next_bg;
2931                 }
2932
2933                 retval = ext2fs_find_first_set_block_bitmap2(fs->block_map,
2934                                                 block, last_block, &next);
2935                 if (retval)
2936                         next = last_block + 1;
2937                 grp_free += EXT2FS_NUM_B2C(fs, next - block);
2938                 tot_free += next - block;
2939                 block = next;
2940
2941                 if (block > last_block) {
2942                 next_bg:
2943                         ext2fs_bg_free_blocks_count_set(fs, group, grp_free);
2944                         ext2fs_group_desc_csum_set(fs, group);
2945                         grp_free = 0;
2946                         group++;
2947                         last_block = ext2fs_group_last_block2(fs, group);
2948                 }
2949         }
2950         ext2fs_free_blocks_count_set(fs->super, tot_free);
2951 }
2952
2953 static int create_quota_inodes(ext2_filsys fs)
2954 {
2955         quota_ctx_t qctx;
2956         errcode_t retval;
2957
2958         retval = quota_init_context(&qctx, fs, quotatype_bits);
2959         if (retval) {
2960                 com_err(program_name, retval,
2961                         _("while initializing quota context"));
2962                 exit(1);
2963         }
2964         quota_compute_usage(qctx);
2965         retval = quota_write_inode(qctx, quotatype_bits);
2966         if (retval) {
2967                 com_err(program_name, retval,
2968                         _("while writing quota inodes"));
2969                 exit(1);
2970         }
2971         quota_release_context(&qctx);
2972
2973         return 0;
2974 }
2975
2976 static errcode_t set_error_behavior(ext2_filsys fs)
2977 {
2978         char    *arg = NULL;
2979         short   errors = fs->super->s_errors;
2980
2981         arg = get_string_from_profile(fs_types, "errors", NULL);
2982         if (arg == NULL)
2983                 goto try_user;
2984
2985         if (strcmp(arg, "continue") == 0)
2986                 errors = EXT2_ERRORS_CONTINUE;
2987         else if (strcmp(arg, "remount-ro") == 0)
2988                 errors = EXT2_ERRORS_RO;
2989         else if (strcmp(arg, "panic") == 0)
2990                 errors = EXT2_ERRORS_PANIC;
2991         else {
2992                 com_err(program_name, 0,
2993                         _("bad error behavior in profile - %s"),
2994                         arg);
2995                 free(arg);
2996                 return EXT2_ET_INVALID_ARGUMENT;
2997         }
2998         free(arg);
2999
3000 try_user:
3001         if (errors_behavior)
3002                 errors = errors_behavior;
3003
3004         fs->super->s_errors = errors;
3005         return 0;
3006 }
3007
3008 int main (int argc, char *argv[])
3009 {
3010         errcode_t       retval = 0;
3011         ext2_filsys     fs;
3012         badblocks_list  bb_list = 0;
3013         badblocks_iterate       bb_iter;
3014         blk_t           blk;
3015         struct ext2fs_journal_params    jparams = {0};
3016         unsigned int    i, checkinterval;
3017         int             max_mnt_count;
3018         int             val, hash_alg;
3019         int             flags;
3020         int             old_bitmaps;
3021         io_manager      io_ptr;
3022         char            opt_string[40];
3023         char            *hash_alg_str;
3024         int             itable_zeroed = 0;
3025         blk64_t         overhead;
3026
3027 #ifdef ENABLE_NLS
3028         setlocale(LC_MESSAGES, "");
3029         setlocale(LC_CTYPE, "");
3030         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
3031         textdomain(NLS_CAT_NAME);
3032         set_com_err_gettext(gettext);
3033 #endif
3034         PRS(argc, argv);
3035
3036 #ifdef CONFIG_TESTIO_DEBUG
3037         if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
3038                 io_ptr = test_io_manager;
3039                 test_io_backing_manager = unix_io_manager;
3040         } else
3041 #endif
3042                 io_ptr = unix_io_manager;
3043
3044         if (undo_file != NULL || should_do_undo(device_name)) {
3045                 retval = mke2fs_setup_tdb(device_name, &io_ptr);
3046                 if (retval)
3047                         exit(1);
3048         }
3049
3050         /*
3051          * Initialize the superblock....
3052          */
3053         flags = EXT2_FLAG_EXCLUSIVE;
3054         if (direct_io)
3055                 flags |= EXT2_FLAG_DIRECT_IO;
3056         profile_get_boolean(profile, "options", "old_bitmaps", 0, 0,
3057                             &old_bitmaps);
3058         if (!old_bitmaps)
3059                 flags |= EXT2_FLAG_64BITS;
3060         /*
3061          * By default, we print how many inode tables or block groups
3062          * or whatever we've written so far.  The quiet flag disables
3063          * this, along with a lot of other output.
3064          */
3065         if (!quiet)
3066                 flags |= EXT2_FLAG_PRINT_PROGRESS;
3067         if (android_sparse_file) {
3068                 char *android_sparse_params = malloc(strlen(device_name) + 48);
3069
3070                 if (!android_sparse_params) {
3071                         com_err(program_name, ENOMEM, "%s",
3072                                 _("in malloc for android_sparse_params"));
3073                         exit(1);
3074                 }
3075                 sprintf(android_sparse_params, "(%s):%u:%u",
3076                          device_name, fs_param.s_blocks_count,
3077                          1024 << fs_param.s_log_block_size);
3078                 retval = ext2fs_initialize(android_sparse_params, flags,
3079                                            &fs_param, sparse_io_manager, &fs);
3080                 free(android_sparse_params);
3081         } else
3082                 retval = ext2fs_initialize(device_name, flags, &fs_param,
3083                                            io_ptr, &fs);
3084         if (retval) {
3085                 com_err(device_name, retval, "%s",
3086                         _("while setting up superblock"));
3087                 exit(1);
3088         }
3089         fs->progress_ops = &ext2fs_numeric_progress_ops;
3090
3091         /* Set the error behavior */
3092         retval = set_error_behavior(fs);
3093         if (retval)
3094                 usage();
3095
3096         /* Check the user's mkfs options for metadata checksumming */
3097         if (!quiet &&
3098             !ext2fs_has_feature_journal_dev(fs->super) &&
3099             ext2fs_has_feature_metadata_csum(fs->super)) {
3100                 if (!ext2fs_has_feature_extents(fs->super))
3101                         printf("%s",
3102                                _("Extents are not enabled.  The file extent "
3103                                  "tree can be checksummed, whereas block maps "
3104                                  "cannot.  Not enabling extents reduces the "
3105                                  "coverage of metadata checksumming.  "
3106                                  "Pass -O extents to rectify.\n"));
3107                 if (!ext2fs_has_feature_64bit(fs->super))
3108                         printf("%s",
3109                                _("64-bit filesystem support is not enabled.  "
3110                                  "The larger fields afforded by this feature "
3111                                  "enable full-strength checksumming.  "
3112                                  "Pass -O 64bit to rectify.\n"));
3113         }
3114
3115         if (ext2fs_has_feature_csum_seed(fs->super) &&
3116             !ext2fs_has_feature_metadata_csum(fs->super)) {
3117                 printf("%s", _("The metadata_csum_seed feature "
3118                                "requires the metadata_csum feature.\n"));
3119                 exit(1);
3120         }
3121
3122         /* Calculate journal blocks */
3123         if (!journal_device && ((journal_size) ||
3124             ext2fs_has_feature_journal(&fs_param)))
3125                 figure_journal_size(&jparams, journal_size, journal_fc_size, fs);
3126
3127         sprintf(opt_string, "tdb_data_size=%d", fs->blocksize <= 4096 ?
3128                 32768 : fs->blocksize * 8);
3129         io_channel_set_options(fs->io, opt_string);
3130         if (offset) {
3131                 sprintf(opt_string, "offset=%llu", (unsigned long long) offset);
3132                 io_channel_set_options(fs->io, opt_string);
3133         }
3134
3135         if (assume_storage_prezeroed) {
3136                 if (verbose)
3137                         printf("%s",
3138                                _("Assuming the storage device is prezeroed "
3139                                "- skipping inode table and journal wipe\n"));
3140
3141                 lazy_itable_init = 1;
3142                 itable_zeroed = 1;
3143                 zero_hugefile = 0;
3144                 journal_flags |= EXT2_MKJOURNAL_LAZYINIT;
3145         }
3146
3147         /* Can't undo discard ... */
3148         if (!noaction && discard && dev_size && (io_ptr != undo_io_manager)) {
3149                 retval = mke2fs_discard_device(fs);
3150                 if (!retval && io_channel_discard_zeroes_data(fs->io)) {
3151                         if (verbose)
3152                                 printf("%s",
3153                                        _("Discard succeeded and will return "
3154                                          "0s - skipping inode table wipe\n"));
3155                         lazy_itable_init = 1;
3156                         itable_zeroed = 1;
3157                         zero_hugefile = 0;
3158                 }
3159         }
3160
3161         if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS)
3162                 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
3163
3164         if (ext2fs_has_feature_flex_bg(&fs_param) ||
3165             ext2fs_has_feature_huge_file(&fs_param) ||
3166             ext2fs_has_feature_gdt_csum(&fs_param) ||
3167             ext2fs_has_feature_dir_nlink(&fs_param) ||
3168             ext2fs_has_feature_metadata_csum(&fs_param) ||
3169             ext2fs_has_feature_extra_isize(&fs_param))
3170                 fs->super->s_kbytes_written = 1;
3171
3172         /*
3173          * Wipe out the old on-disk superblock
3174          */
3175         if (!noaction)
3176                 zap_sector(fs, 2, 6);
3177
3178         /*
3179          * Parse or generate a UUID for the filesystem
3180          */
3181         if (fs_uuid) {
3182                 if ((strcasecmp(fs_uuid, "null") == 0) ||
3183                     (strcasecmp(fs_uuid, "clear") == 0)) {
3184                         uuid_clear(fs->super->s_uuid);
3185                 } else if (strcasecmp(fs_uuid, "time") == 0) {
3186                         uuid_generate_time(fs->super->s_uuid);
3187                 } else if (strcasecmp(fs_uuid, "random") == 0) {
3188                         uuid_generate(fs->super->s_uuid);
3189                 } else if (uuid_parse(fs_uuid, fs->super->s_uuid) != 0) {
3190                         com_err(device_name, 0, "could not parse UUID: %s\n",
3191                                 fs_uuid);
3192                         exit(1);
3193                 }
3194         } else
3195                 uuid_generate(fs->super->s_uuid);
3196
3197         if (ext2fs_has_feature_csum_seed(fs->super))
3198                 fs->super->s_checksum_seed = ext2fs_crc32c_le(~0,
3199                                 fs->super->s_uuid, sizeof(fs->super->s_uuid));
3200
3201         ext2fs_init_csum_seed(fs);
3202
3203         /*
3204          * Initialize the directory index variables
3205          */
3206         hash_alg_str = get_string_from_profile(fs_types, "hash_alg",
3207                                                "half_md4");
3208         hash_alg = e2p_string2hash(hash_alg_str);
3209         free(hash_alg_str);
3210         fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg :
3211                 EXT2_HASH_HALF_MD4;
3212
3213         if (memcmp(fs_param.s_hash_seed, zero_buf,
3214                 sizeof(fs_param.s_hash_seed)) != 0) {
3215                 memcpy(fs->super->s_hash_seed, fs_param.s_hash_seed,
3216                         sizeof(fs->super->s_hash_seed));
3217         } else
3218                 uuid_generate((unsigned char *) fs->super->s_hash_seed);
3219
3220         /*
3221          * Periodic checks can be enabled/disabled via config file.
3222          * Note we override the kernel include file's idea of what the default
3223          * check interval (never) should be.  It's a good idea to check at
3224          * least *occasionally*, specially since servers will never rarely get
3225          * to reboot, since Linux is so robust these days.  :-)
3226          *
3227          * 180 days (six months) seems like a good value.
3228          */
3229 #ifdef EXT2_DFL_CHECKINTERVAL
3230 #undef EXT2_DFL_CHECKINTERVAL
3231 #endif
3232 #define EXT2_DFL_CHECKINTERVAL (86400L * 180L)
3233
3234         if (get_bool_from_profile(fs_types, "enable_periodic_fsck", 0)) {
3235                 fs->super->s_checkinterval = EXT2_DFL_CHECKINTERVAL;
3236                 fs->super->s_max_mnt_count = EXT2_DFL_MAX_MNT_COUNT;
3237                 /*
3238                  * Add "jitter" to the superblock's check interval so that we
3239                  * don't check all the filesystems at the same time.  We use a
3240                  * kludgy hack of using the UUID to derive a random jitter value
3241                  */
3242                 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++)
3243                         val += fs->super->s_uuid[i];
3244                 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
3245         } else
3246                 fs->super->s_max_mnt_count = -1;
3247
3248         /*
3249          * Override the creator OS, if applicable
3250          */
3251         if (creator_os && !set_os(fs->super, creator_os)) {
3252                 com_err (program_name, 0, _("unknown os - %s"), creator_os);
3253                 exit(1);
3254         }
3255
3256         /*
3257          * For the Hurd, we will turn off filetype since it doesn't
3258          * support it.
3259          */
3260         if (fs->super->s_creator_os == EXT2_OS_HURD)
3261                 ext2fs_clear_feature_filetype(fs->super);
3262
3263         /*
3264          * Set the volume label...
3265          */
3266         if (volume_label) {
3267                 memset(fs->super->s_volume_name, 0,
3268                        sizeof(fs->super->s_volume_name));
3269                 strncpy((char *) fs->super->s_volume_name, volume_label,
3270                         sizeof(fs->super->s_volume_name));
3271         }
3272
3273         /*
3274          * Set the last mount directory
3275          */
3276         if (mount_dir) {
3277                 memset(fs->super->s_last_mounted, 0,
3278                        sizeof(fs->super->s_last_mounted));
3279                 strncpy((char *) fs->super->s_last_mounted, mount_dir,
3280                         sizeof(fs->super->s_last_mounted));
3281         }
3282
3283         /* Set current default encryption algorithms for data and
3284          * filename encryption */
3285         if (ext2fs_has_feature_encrypt(fs->super)) {
3286                 fs->super->s_encrypt_algos[0] =
3287                         EXT4_ENCRYPTION_MODE_AES_256_XTS;
3288                 fs->super->s_encrypt_algos[1] =
3289                         EXT4_ENCRYPTION_MODE_AES_256_CTS;
3290         }
3291
3292         if (ext2fs_has_feature_metadata_csum(fs->super))
3293                 fs->super->s_checksum_type = EXT2_CRC32C_CHKSUM;
3294
3295         if (!quiet || noaction)
3296                 show_stats(fs);
3297
3298         if (noaction)
3299                 exit(0);
3300
3301         if (ext2fs_has_feature_journal_dev(fs->super)) {
3302                 create_journal_dev(fs);
3303                 printf("\n");
3304                 exit(ext2fs_close_free(&fs) ? 1 : 0);
3305         }
3306
3307         if (bad_blocks_filename)
3308                 read_bb_file(fs, &bb_list, bad_blocks_filename);
3309         if (cflag)
3310                 test_disk(fs, &bb_list);
3311         handle_bad_blocks(fs, bb_list);
3312
3313         fs->stride = fs_stride = fs->super->s_raid_stride;
3314         if (!quiet)
3315                 printf("%s", _("Allocating group tables: "));
3316         if (ext2fs_has_feature_flex_bg(fs->super) &&
3317             packed_meta_blocks)
3318                 retval = packed_allocate_tables(fs);
3319         else
3320                 retval = ext2fs_allocate_tables(fs);
3321         if (retval) {
3322                 com_err(program_name, retval, "%s",
3323                         _("while trying to allocate filesystem tables"));
3324                 exit(1);
3325         }
3326         if (!quiet)
3327                 printf("%s", _("done                            \n"));
3328
3329         /*
3330          * Unmark bad blocks to calculate overhead, because metadata
3331          * blocks and bad blocks can land on the same allocation cluster.
3332          */
3333         if (bb_list) {
3334                 retval = ext2fs_badblocks_list_iterate_begin(bb_list,
3335                                                              &bb_iter);
3336                 if (retval) {
3337                         com_err("ext2fs_badblocks_list_iterate_begin", retval,
3338                                 "%s", _("while unmarking bad blocks"));
3339                         exit(1);
3340                 }
3341                 while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
3342                         ext2fs_unmark_block_bitmap2(fs->block_map, blk);
3343                 ext2fs_badblocks_list_iterate_end(bb_iter);
3344         }
3345
3346         retval = ext2fs_convert_subcluster_bitmap(fs, &fs->block_map);
3347         if (retval) {
3348                 com_err(program_name, retval, "%s",
3349                         _("\n\twhile converting subcluster bitmap"));
3350                 exit(1);
3351         }
3352
3353         retval = ext2fs_count_used_clusters(fs, fs->super->s_first_data_block,
3354                                         ext2fs_blocks_count(fs->super) - 1,
3355                                         &overhead);
3356         if (retval) {
3357                 com_err(program_name, retval, "%s",
3358                         _("while calculating overhead"));
3359                 exit(1);
3360         }
3361
3362         if (bb_list) {
3363                 retval = ext2fs_badblocks_list_iterate_begin(bb_list,
3364                                                              &bb_iter);
3365                 if (retval) {
3366                         com_err("ext2fs_badblocks_list_iterate_begin", retval,
3367                                 "%s", _("while marking bad blocks as used"));
3368                         exit(1);
3369                 }
3370                 while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
3371                         ext2fs_mark_block_bitmap2(fs->block_map, blk);
3372                 ext2fs_badblocks_list_iterate_end(bb_iter);
3373         }
3374
3375         if (super_only) {
3376                 check_plausibility(device_name, CHECK_FS_EXIST, NULL);
3377                 printf(_("%s may be further corrupted by superblock rewrite\n"),
3378                        device_name);
3379                 if (!force)
3380                         proceed_question(proceed_delay);
3381                 fs->super->s_state |= EXT2_ERROR_FS;
3382                 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
3383                 /*
3384                  * The command "mke2fs -S" is used to recover
3385                  * corrupted file systems, so do not mark any of the
3386                  * inodes as unused; we want e2fsck to consider all
3387                  * inodes as potentially containing recoverable data.
3388                  */
3389                 if (ext2fs_has_group_desc_csum(fs)) {
3390                         for (i = 0; i < fs->group_desc_count; i++)
3391                                 ext2fs_bg_itable_unused_set(fs, i, 0);
3392                 }
3393         } else {
3394                 /* rsv must be a power of two (64kB is MD RAID sb alignment) */
3395                 blk64_t rsv = 65536 / fs->blocksize;
3396                 blk64_t blocks = ext2fs_blocks_count(fs->super);
3397                 blk64_t start;
3398                 blk64_t ret_blk;
3399
3400 #ifdef ZAP_BOOTBLOCK
3401                 zap_sector(fs, 0, 2);
3402 #endif
3403
3404                 /*
3405                  * Wipe out any old MD RAID (or other) metadata at the end
3406                  * of the device.  This will also verify that the device is
3407                  * as large as we think.  Be careful with very small devices.
3408                  */
3409                 start = (blocks & ~(rsv - 1));
3410                 if (start > rsv)
3411                         start -= rsv;
3412                 if (start > 0)
3413                         retval = ext2fs_zero_blocks2(fs, start, blocks - start,
3414                                                     &ret_blk, NULL);
3415
3416                 if (retval) {
3417                         com_err(program_name, retval,
3418                                 _("while zeroing block %llu at end of filesystem"),
3419                                 (unsigned long long) ret_blk);
3420                 }
3421                 write_inode_tables(fs, lazy_itable_init, itable_zeroed);
3422                 create_root_dir(fs);
3423                 create_lost_and_found(fs);
3424                 reserve_inodes(fs);
3425                 create_bad_block_inode(fs, bb_list);
3426                 if (ext2fs_has_feature_resize_inode(fs->super)) {
3427                         retval = ext2fs_create_resize_inode(fs);
3428                         if (retval) {
3429                                 com_err("ext2fs_create_resize_inode", retval,
3430                                         "%s",
3431                                 _("while reserving blocks for online resize"));
3432                                 exit(1);
3433                         }
3434                 }
3435         }
3436
3437         if (journal_device) {
3438                 ext2_filsys     jfs;
3439
3440                 if (!check_plausibility(journal_device, CHECK_BLOCK_DEV,
3441                                         NULL) && !force)
3442                         proceed_question(proceed_delay);
3443                 check_mount(journal_device, force, _("journal"));
3444
3445                 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
3446                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
3447                                      fs->blocksize, unix_io_manager, &jfs);
3448                 if (retval) {
3449                         com_err(program_name, retval,
3450                                 _("while trying to open journal device %s\n"),
3451                                 journal_device);
3452                         exit(1);
3453                 }
3454                 if (!quiet) {
3455                         printf(_("Adding journal to device %s: "),
3456                                journal_device);
3457                         fflush(stdout);
3458                 }
3459                 retval = ext2fs_add_journal_device(fs, jfs);
3460                 if(retval) {
3461                         com_err (program_name, retval,
3462                                  _("\n\twhile trying to add journal to device %s"),
3463                                  journal_device);
3464                         exit(1);
3465                 }
3466                 if (!quiet)
3467                         printf("%s", _("done\n"));
3468                 ext2fs_close_free(&jfs);
3469                 free(journal_device);
3470         } else if ((journal_size) ||
3471                    ext2fs_has_feature_journal(&fs_param)) {
3472                 overhead += EXT2FS_NUM_B2C(fs, jparams.num_journal_blocks + jparams.num_fc_blocks);
3473                 if (super_only) {
3474                         printf("%s", _("Skipping journal creation in super-only mode\n"));
3475                         fs->super->s_journal_inum = EXT2_JOURNAL_INO;
3476                         goto no_journal;
3477                 }
3478
3479                 if (!jparams.num_journal_blocks) {
3480                         ext2fs_clear_feature_journal(fs->super);
3481                         goto no_journal;
3482                 }
3483                 if (!quiet) {
3484                         printf(_("Creating journal (%u blocks): "),
3485                                jparams.num_journal_blocks + jparams.num_fc_blocks);
3486                         fflush(stdout);
3487                 }
3488                 retval = ext2fs_add_journal_inode3(fs, &jparams,
3489                                                    journal_location,
3490                                                    journal_flags);
3491                 if (retval) {
3492                         com_err(program_name, retval, "%s",
3493                                 _("\n\twhile trying to create journal"));
3494                         exit(1);
3495                 }
3496                 if (!quiet)
3497                         printf("%s", _("done\n"));
3498         }
3499 no_journal:
3500         if (!super_only &&
3501             ext2fs_has_feature_mmp(fs->super)) {
3502                 retval = ext2fs_mmp_init(fs);
3503                 if (retval) {
3504                         fprintf(stderr, "%s",
3505                                 _("\nError while enabling multiple "
3506                                   "mount protection feature."));
3507                         exit(1);
3508                 }
3509                 if (!quiet)
3510                         printf(_("Multiple mount protection is enabled "
3511                                  "with update interval %d seconds.\n"),
3512                                fs->super->s_mmp_update_interval);
3513         }
3514
3515         overhead += fs->super->s_first_data_block;
3516         if (!super_only)
3517                 fs->super->s_overhead_clusters = overhead;
3518
3519         if (ext2fs_has_feature_bigalloc(&fs_param))
3520                 fix_cluster_bg_counts(fs);
3521         if (ext2fs_has_feature_quota(&fs_param))
3522                 create_quota_inodes(fs);
3523         if (ext2fs_has_feature_orphan_file(&fs_param)) {
3524                 if (!ext2fs_has_feature_journal(&fs_param)) {
3525                         com_err(program_name, 0, _("cannot set orphan_file "
3526                                 "feature without a journal."));
3527                         exit(1);
3528                 }
3529                 if (!orphan_file_blocks) {
3530                         orphan_file_blocks =
3531                                 ext2fs_default_orphan_file_blocks(fs);
3532                 }
3533                 retval = ext2fs_create_orphan_file(fs, orphan_file_blocks);
3534                 if (retval) {
3535                         com_err(program_name, retval,
3536                                 _("while creating orphan file"));
3537                         exit(1);
3538                 }
3539         }
3540
3541         retval = mk_hugefiles(fs, device_name);
3542         if (retval)
3543                 com_err(program_name, retval, "while creating huge files");
3544         /* Copy files from the specified directory */
3545         if (src_root_dir) {
3546                 if (!quiet)
3547                         printf("%s", _("Copying files into the device: "));
3548
3549                 retval = populate_fs(fs, EXT2_ROOT_INO, src_root_dir,
3550                                      EXT2_ROOT_INO);
3551                 if (retval) {
3552                         com_err(program_name, retval, "%s",
3553                                 _("while populating file system"));
3554                         exit(1);
3555                 } else if (!quiet)
3556                         printf("%s", _("done\n"));
3557         }
3558
3559         if (!quiet)
3560                 printf("%s", _("Writing superblocks and "
3561                        "filesystem accounting information: "));
3562         checkinterval = fs->super->s_checkinterval;
3563         max_mnt_count = fs->super->s_max_mnt_count;
3564         retval = ext2fs_close_free(&fs);
3565         if (retval) {
3566                 com_err(program_name, retval, "%s",
3567                         _("while writing out and closing file system"));
3568                 retval = 1;
3569         } else if (!quiet) {
3570                 printf("%s", _("done\n\n"));
3571                 if (!getenv("MKE2FS_SKIP_CHECK_MSG"))
3572                         print_check_message(max_mnt_count, checkinterval);
3573         }
3574
3575         remove_error_table(&et_ext2_error_table);
3576         remove_error_table(&et_prof_error_table);
3577         profile_release(profile);
3578         for (i=0; fs_types[i]; i++)
3579                 free(fs_types[i]);
3580         free(fs_types);
3581         return retval;
3582 }