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 HAVE_GETOPT_H
  28 #include <getopt.h>
  29 #else
  30 extern char *optarg;
  31 extern int optind;
  32 #endif
  33 #ifdef HAVE_UNISTD_H
  34 #include <unistd.h>
  35 #endif
  36 #ifdef HAVE_STDLIB_H
  37 #include <stdlib.h>
  38 #endif
  39 #ifdef HAVE_ERRNO_H
  40 #include <errno.h>
  41 #endif
  42 #ifdef HAVE_SYS_IOCTL_H
  43 #include <sys/ioctl.h>
  44 #endif
  45 #include <libgen.h>
  46 #include <limits.h>
  47 #include <blkid/blkid.h>
  48
  49 #include "ext2fs/ext2_fs.h"
  50 #include "ext2fs/ext2fsP.h"
  51 #include "uuid/uuid.h"
  52 #include "util.h"
  53 #include "support/nls-enable.h"
  54 #include "support/plausible.h"
  55 #include "support/profile.h"
  56 #include "support/prof_err.h"
  57 #include "../version.h"
  58 #include "support/quotaio.h"
  59 #include "mke2fs.h"
  60 #include "create_inode.h"
  61
  62 #define STRIDE_LENGTH 8
  63
  64 #define MAX_32_NUM ((((unsigned long long) 1) << 32) - 1)
  65
  66 #ifndef __sparc__
  67 #define ZAP_BOOTBLOCK
  68 #endif
  69
  70 extern int isatty(int);
  71 extern FILE *fpopen(const char *cmd, const char *mode);
  72
  73 const char * program_name = "mke2fs";
  74 static const char * device_name /* = NULL */;
  75
  76 /* Command line options */
  77 static int      cflag;
  78 int     verbose;
  79 int     quiet;
  80 static int      super_only;
  81 static int      discard = 1;    /* attempt to discard device before fs creation */
  82 static int      direct_io;
  83 static int      force;
  84 static int      noaction;
  85 static int      num_backups = 2; /* number of backup bg's for sparse_super2 */
  86 static uid_t    root_uid;
  87 static mode_t   root_perms = (mode_t)-1;
  88 static gid_t    root_gid;
  89 int     journal_size;
  90 int     journal_flags;
  91 int     journal_fc_size;
  92 static e2_blkcnt_t      orphan_file_blocks;
  93 static int      lazy_itable_init;
  94 static int      assume_storage_prezeroed;
  95 static int      packed_meta_blocks;
  96 int             no_copy_xattrs;
  97 static char     *bad_blocks_filename = NULL;
  98 static __u32    fs_stride;
  99 /* Initialize usr/grp quotas by default */
 100 static unsigned int quotatype_bits = (QUOTA_USR_BIT | QUOTA_GRP_BIT);
 101 static __u64    offset;
 102 static blk64_t journal_location = ~0LL;
 103 static int      proceed_delay = -1;
 104 static blk64_t  dev_size;
 105 blk64_t         iops_array[64];
 106 unsigned int    iops_size = sizeof(iops_array);
 107 unsigned int    iops_count = 0;
 108 blk64_t         *iops_range = iops_array;
 109
 110 static struct ext2_super_block fs_param;
 111 static __u32 zero_buf[4];
 112 static char *fs_uuid = NULL;
 113 static char *creator_os;
 114 static char *volume_label;
 115 static char *mount_dir;
 116 char *journal_device;
 117 static int sync_kludge; /* Set using the MKE2FS_SYNC env. option */
 118 char **fs_types;
 119 const char *src_root;  /* Copy files from the specified directory or tarball */
 120 static char *undo_file;
 121
 122 static int android_sparse_file; /* -E android_sparse */
 123
 124 static profile_t        profile;
 125
 126 static int sys_page_size = 4096;
 127
 128 static int errors_behavior = 0;
 129
 130 static void usage(void)
 131 {
 132         fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] "
 133         "[-C cluster-size]\n\t[-i bytes-per-inode] [-I inode-size] "
 134         "[-J journal-options]\n"
 135         "\t[-G flex-group-size] [-N number-of-inodes] "
 136         "[-d root-directory|tarball]\n"
 137         "\t[-m reserved-blocks-percentage] [-o creator-os]\n"
 138         "\t[-g blocks-per-group] [-L volume-label] "
 139         "[-M last-mounted-directory]\n\t[-O feature[,...]] "
 140         "[-r fs-revision] [-E extended-option[,...]]\n"
 141         "\t[-t fs-type] [-T usage-type ] [-U UUID] [-e errors_behavior]"
 142         "[-z undo_file]\n"
 143         "\t[-jnqvDFSV] device [blocks-count]\n"),
 144                 program_name);
 145         exit(1);
 146 }
 147
 148 static int int_log2(unsigned long long arg)
 149 {
 150         int     l = 0;
 151
 152         arg >>= 1;
 153         while (arg) {
 154                 l++;
 155                 arg >>= 1;
 156         }
 157         return l;
 158 }
 159
 160 int int_log10(unsigned long long arg)
 161 {
 162         int     l;
 163
 164         for (l=0; arg ; l++)
 165                 arg = arg / 10;
 166         return l;
 167 }
 168
 169 /*
 170  * Helper function for read_bb_file and test_disk
 171  */
 172 static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk)
 173 {
 174         fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk);
 175         return;
 176 }
 177
 178 /*
 179  * Reads the bad blocks list from a file
 180  */
 181 static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list,
 182                          const char *bad_blocks_file)
 183 {
 184         FILE            *f;
 185         errcode_t       retval;
 186
 187         f = fopen(bad_blocks_file, "r");
 188         if (!f) {
 189                 com_err("read_bad_blocks_file", errno,
 190                         _("while trying to open %s"), bad_blocks_file);
 191                 exit(1);
 192         }
 193         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
 194         fclose (f);
 195         if (retval) {
 196                 com_err("ext2fs_read_bb_FILE", retval, "%s",
 197                         _("while reading in list of bad blocks from file"));
 198                 exit(1);
 199         }
 200 }
 201
 202 /*
 203  * Runs the badblocks program to test the disk
 204  */
 205 static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
 206 {
 207         FILE            *f;
 208         errcode_t       retval;
 209         char            buf[1024];
 210
 211         sprintf(buf, "badblocks -b %d -X %s%s%s %llu", fs->blocksize,
 212                 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "",
 213                 fs->device_name,
 214                 (unsigned long long) ext2fs_blocks_count(fs->super)-1);
 215         if (verbose)
 216                 printf(_("Running command: %s\n"), buf);
 217         f = popen(buf, "r");
 218         if (!f) {
 219                 com_err("popen", errno,
 220                         _("while trying to run '%s'"), buf);
 221                 exit(1);
 222         }
 223         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
 224         pclose(f);
 225         if (retval) {
 226                 com_err("ext2fs_read_bb_FILE", retval, "%s",
 227                         _("while processing list of bad blocks from program"));
 228                 exit(1);
 229         }
 230 }
 231
 232 static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
 233 {
 234         dgrp_t                  i;
 235         blk_t                   j;
 236         unsigned                must_be_good;
 237         blk_t                   blk;
 238         badblocks_iterate       bb_iter;
 239         errcode_t               retval;
 240         blk_t                   group_block;
 241         int                     group;
 242         int                     group_bad;
 243
 244         if (!bb_list)
 245                 return;
 246
 247         /*
 248          * The primary superblock and group descriptors *must* be
 249          * good; if not, abort.
 250          */
 251         must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
 252         for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
 253                 if (ext2fs_badblocks_list_test(bb_list, i)) {
 254                         fprintf(stderr, _("Block %d in primary "
 255                                 "superblock/group descriptor area bad.\n"), i);
 256                         fprintf(stderr, _("Blocks %u through %u must be good "
 257                                 "in order to build a filesystem.\n"),
 258                                 fs->super->s_first_data_block, must_be_good);
 259                         fputs(_("Aborting....\n"), stderr);
 260                         exit(1);
 261                 }
 262         }
 263
 264         /*
 265          * See if any of the bad blocks are showing up in the backup
 266          * superblocks and/or group descriptors.  If so, issue a
 267          * warning and adjust the block counts appropriately.
 268          */
 269         group_block = fs->super->s_first_data_block +
 270                 fs->super->s_blocks_per_group;
 271
 272         for (i = 1; i < fs->group_desc_count; i++) {
 273                 group_bad = 0;
 274                 for (j=0; j < fs->desc_blocks+1; j++) {
 275                         if (ext2fs_badblocks_list_test(bb_list,
 276                                                        group_block + j)) {
 277                                 if (!group_bad)
 278                                         fprintf(stderr,
 279 _("Warning: the backup superblock/group descriptors at block %u contain\n"
 280 "       bad blocks.\n\n"),
 281                                                 group_block);
 282                                 group_bad++;
 283                                 group = ext2fs_group_of_blk2(fs, group_block+j);
 284                                 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
 285                                 ext2fs_group_desc_csum_set(fs, group);
 286                                 ext2fs_free_blocks_count_add(fs->super, 1);
 287                         }
 288                 }
 289                 group_block += fs->super->s_blocks_per_group;
 290         }
 291
 292         /*
 293          * Mark all the bad blocks as used...
 294          */
 295         retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
 296         if (retval) {
 297                 com_err("ext2fs_badblocks_list_iterate_begin", retval, "%s",
 298                         _("while marking bad blocks as used"));
 299                 exit(1);
 300         }
 301         while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
 302                 ext2fs_mark_block_bitmap2(fs->block_map, blk);
 303         ext2fs_badblocks_list_iterate_end(bb_iter);
 304 }
 305
 306 static void write_reserved_inodes(ext2_filsys fs)
 307 {
 308         errcode_t       retval;
 309         ext2_ino_t      ino;
 310         struct ext2_inode *inode;
 311
 312         retval = ext2fs_get_memzero(EXT2_INODE_SIZE(fs->super), &inode);
 313         if (retval) {
 314                 com_err("inode_init", retval, _("while allocating memory"));
 315                 exit(1);
 316         }
 317
 318         for (ino = 1; ino < EXT2_FIRST_INO(fs->super); ino++) {
 319                 retval = ext2fs_write_inode_full(fs, ino, inode,
 320                                                  EXT2_INODE_SIZE(fs->super));
 321                 if (retval) {
 322                         com_err("ext2fs_write_inode_full", retval,
 323                                 _("while writing reserved inodes"));
 324                         exit(1);
 325                 }
 326         }
 327
 328         ext2fs_free_mem(&inode);
 329 }
 330
 331 static errcode_t packed_allocate_tables(ext2_filsys fs)
 332 {
 333         errcode_t       retval;
 334         dgrp_t          i;
 335         blk64_t         goal = 0;
 336
 337         for (i = 0; i < fs->group_desc_count; i++) {
 338                 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
 339                 if (retval)
 340                         return retval;
 341                 ext2fs_block_alloc_stats2(fs, goal, +1);
 342                 ext2fs_block_bitmap_loc_set(fs, i, goal);
 343         }
 344         for (i = 0; i < fs->group_desc_count; i++) {
 345                 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
 346                 if (retval)
 347                         return retval;
 348                 ext2fs_block_alloc_stats2(fs, goal, +1);
 349                 ext2fs_inode_bitmap_loc_set(fs, i, goal);
 350         }
 351         for (i = 0; i < fs->group_desc_count; i++) {
 352                 blk64_t end = ext2fs_blocks_count(fs->super) - 1;
 353                 retval = ext2fs_get_free_blocks2(fs, goal, end,
 354                                                  fs->inode_blocks_per_group,
 355                                                  fs->block_map, &goal);
 356                 if (retval)
 357                         return retval;
 358                 ext2fs_block_alloc_stats_range(fs, goal,
 359                                                fs->inode_blocks_per_group, +1);
 360                 ext2fs_inode_table_loc_set(fs, i, goal);
 361                 ext2fs_group_desc_csum_set(fs, i);
 362         }
 363         return 0;
 364 }
 365
 366 static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed)
 367 {
 368         errcode_t       retval;
 369         blk64_t         start = 0;
 370         dgrp_t          i;
 371         int             len = 0;
 372         struct ext2fs_numeric_progress_struct progress;
 373
 374         ext2fs_numeric_progress_init(fs, &progress,
 375                                      _("Writing inode tables: "),
 376                                      fs->group_desc_count);
 377
 378         for (i = 0; i < fs->group_desc_count; i++) {
 379                 blk64_t blk = ext2fs_inode_table_loc(fs, i);
 380                 int num = fs->inode_blocks_per_group;
 381
 382                 ext2fs_numeric_progress_update(fs, &progress, i);
 383
 384                 if (lazy_flag)
 385                         num = ext2fs_div_ceil((fs->super->s_inodes_per_group -
 386                                                ext2fs_bg_itable_unused(fs, i)) *
 387                                               EXT2_INODE_SIZE(fs->super),
 388                                               EXT2_BLOCK_SIZE(fs->super));
 389                 if (!lazy_flag || itable_zeroed) {
 390                         /* The kernel doesn't need to zero the itable blocks */
 391                         ext2fs_bg_flags_set(fs, i, EXT2_BG_INODE_ZEROED);
 392                         ext2fs_group_desc_csum_set(fs, i);
 393                 }
 394                 if (!itable_zeroed) {
 395                         if (len == 0) {
 396                                 start = blk;
 397                                 len = num;
 398                                 continue;
 399                         }
 400                         /* 'len' must not overflow 2^31 blocks for ext2fs_zero_blocks2() */
 401                         if (start + len == blk && len + num >= len) {
 402                                 len += num;
 403                                 continue;
 404                         }
 405                         retval = ext2fs_zero_blocks2(fs, start, len, &start, &len);
 406                         if (retval) {
 407                                 fprintf(stderr, _("\nCould not write %d "
 408                                           "blocks in inode table starting at %llu: %s\n"),
 409                                         len, (unsigned long long) start,
 410                                         error_message(retval));
 411                                 exit(1);
 412                         }
 413                         start = blk;
 414                         len = num;
 415                 }
 416                 if (sync_kludge) {
 417                         if (sync_kludge == 1)
 418                                 io_channel_flush(fs->io);
 419                         else if ((i % sync_kludge) == 0)
 420                                 io_channel_flush(fs->io);
 421                 }
 422         }
 423         if (len) {
 424                 retval = ext2fs_zero_blocks2(fs, start, len, &start, &len);
 425                 if (retval) {
 426                         fprintf(stderr, _("\nCould not write %d "
 427                                   "blocks in inode table starting at %llu: %s\n"),
 428                                 len, (unsigned long long) start,
 429                                 error_message(retval));
 430                         exit(1);
 431                 }
 432                 if (sync_kludge)
 433                         io_channel_flush(fs->io);
 434         }
 435         ext2fs_numeric_progress_close(fs, &progress,
 436                                       _("done                            \n"));
 437
 438         /* Reserved inodes must always have correct checksums */
 439         if (ext2fs_has_feature_metadata_csum(fs->super))
 440                 write_reserved_inodes(fs);
 441 }
 442
 443 static void create_root_dir(ext2_filsys fs)
 444 {
 445         errcode_t               retval;
 446         struct ext2_inode       inode;
 447         int need_inode_change;
 448
 449         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
 450         if (retval) {
 451                 com_err("ext2fs_mkdir", retval, "%s",
 452                         _("while creating root dir"));
 453                 exit(1);
 454         }
 455
 456         need_inode_change = (int)(root_uid != 0 || root_gid != 0 || root_perms != (mode_t)-1);
 457
 458         if (need_inode_change) {
 459                 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
 460                 if (retval) {
 461                         com_err("ext2fs_read_inode", retval, "%s",
 462                                 _("while reading root inode"));
 463                         exit(1);
 464                 }
 465         }
 466
 467         if (root_uid != 0 || root_gid != 0) {
 468                 inode.i_uid = root_uid;
 469                 ext2fs_set_i_uid_high(inode, root_uid >> 16);
 470                 inode.i_gid = root_gid;
 471                 ext2fs_set_i_gid_high(inode, root_gid >> 16);
 472         }
 473
 474         if (root_perms != (mode_t)-1) {
 475                 inode.i_mode = LINUX_S_IFDIR | root_perms;
 476         }
 477
 478         if (need_inode_change) {
 479                 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
 480                 if (retval) {
 481                         com_err("ext2fs_write_inode", retval, "%s",
 482                                 _("while setting root inode ownership"));
 483                         exit(1);
 484                 }
 485         }
 486 }
 487
 488 static void create_lost_and_found(ext2_filsys fs)
 489 {
 490         unsigned int            lpf_size = 0;
 491         errcode_t               retval;
 492         ext2_ino_t              ino;
 493         const char              *name = "lost+found";
 494         int                     i;
 495
 496         fs->umask = 077;
 497         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
 498         if (retval) {
 499                 com_err("ext2fs_mkdir", retval, "%s",
 500                         _("while creating /lost+found"));
 501                 exit(1);
 502         }
 503
 504         retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
 505         if (retval) {
 506                 com_err("ext2_lookup", retval, "%s",
 507                         _("while looking up /lost+found"));
 508                 exit(1);
 509         }
 510
 511         for (i=1; i < EXT2_NDIR_BLOCKS; i++) {
 512                 /* Ensure that lost+found is at least 2 blocks, so we always
 513                  * test large empty blocks for big-block filesystems.  */
 514                 if ((lpf_size += fs->blocksize) >= 16*1024 &&
 515                     lpf_size >= 2 * fs->blocksize)
 516                         break;
 517                 retval = ext2fs_expand_dir(fs, ino);
 518                 if (retval) {
 519                         com_err("ext2fs_expand_dir", retval, "%s",
 520                                 _("while expanding /lost+found"));
 521                         exit(1);
 522                 }
 523         }
 524 }
 525
 526 static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
 527 {
 528         errcode_t       retval;
 529
 530         ext2fs_mark_inode_bitmap2(fs->inode_map, EXT2_BAD_INO);
 531         ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0);
 532         retval = ext2fs_update_bb_inode(fs, bb_list);
 533         if (retval) {
 534                 com_err("ext2fs_update_bb_inode", retval, "%s",
 535                         _("while setting bad block inode"));
 536                 exit(1);
 537         }
 538
 539 }
 540
 541 static void reserve_inodes(ext2_filsys fs)
 542 {
 543         ext2_ino_t      i;
 544
 545         for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++)
 546                 ext2fs_inode_alloc_stats2(fs, i, +1, 0);
 547         ext2fs_mark_ib_dirty(fs);
 548 }
 549
 550 #define BSD_DISKMAGIC   (0x82564557UL)  /* The disk magic number */
 551 #define BSD_MAGICDISK   (0x57455682UL)  /* The disk magic number reversed */
 552 #define BSD_LABEL_OFFSET        64
 553
 554 static void zap_sector(ext2_filsys fs, int sect, int nsect)
 555 {
 556         char *buf;
 557         int retval;
 558         unsigned int *magic;
 559
 560         buf = calloc(512, nsect);
 561         if (!buf) {
 562                 printf(_("Out of memory erasing sectors %d-%d\n"),
 563                        sect, sect + nsect - 1);
 564                 exit(1);
 565         }
 566
 567         if (sect == 0) {
 568                 /* Check for a BSD disklabel, and don't erase it if so */
 569                 retval = io_channel_read_blk64(fs->io, 0, -512, buf);
 570                 if (retval)
 571                         fprintf(stderr,
 572                                 _("Warning: could not read block 0: %s\n"),
 573                                 error_message(retval));
 574                 else {
 575                         magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);
 576                         if ((*magic == BSD_DISKMAGIC) ||
 577                             (*magic == BSD_MAGICDISK)) {
 578                                 free(buf);
 579                                 return;
 580                         }
 581                 }
 582         }
 583
 584         memset(buf, 0, 512*nsect);
 585         io_channel_set_blksize(fs->io, 512);
 586         retval = io_channel_write_blk64(fs->io, sect, -512*nsect, buf);
 587         io_channel_set_blksize(fs->io, fs->blocksize);
 588         free(buf);
 589         if (retval)
 590                 fprintf(stderr, _("Warning: could not erase sector %d: %s\n"),
 591                         sect, error_message(retval));
 592 }
 593
 594 static void create_journal_dev(ext2_filsys fs)
 595 {
 596         struct ext2fs_numeric_progress_struct progress;
 597         errcode_t               retval;
 598         char                    *buf;
 599         blk64_t                 blk, err_blk;
 600         int                     c, count, err_count;
 601         struct ext2fs_journal_params    jparams;
 602
 603         retval = ext2fs_get_journal_params(&jparams, fs);
 604         if (retval) {
 605                 com_err("create_journal_dev", retval, "%s",
 606                         _("while splitting the journal size"));
 607                 exit(1);
 608         }
 609
 610         retval = ext2fs_create_journal_superblock2(fs, &jparams, 0, &buf);
 611         if (retval) {
 612                 com_err("create_journal_dev", retval, "%s",
 613                         _("while initializing journal superblock"));
 614                 exit(1);
 615         }
 616
 617         if (journal_flags & EXT2_MKJOURNAL_LAZYINIT)
 618                 goto write_superblock;
 619
 620         ext2fs_numeric_progress_init(fs, &progress,
 621                                      _("Zeroing journal device: "),
 622                                      ext2fs_blocks_count(fs->super));
 623         blk = 0;
 624         count = ext2fs_blocks_count(fs->super);
 625         while (count > 0) {
 626                 if (count > 1024)
 627                         c = 1024;
 628                 else
 629                         c = count;
 630                 retval = ext2fs_zero_blocks2(fs, blk, c, &err_blk, &err_count);
 631                 if (retval) {
 632                         com_err("create_journal_dev", retval,
 633                                 _("while zeroing journal device "
 634                                   "(block %llu, count %d)"),
 635                                 (unsigned long long) err_blk, err_count);
 636                         exit(1);
 637                 }
 638                 blk += c;
 639                 count -= c;
 640                 ext2fs_numeric_progress_update(fs, &progress, blk);
 641         }
 642
 643         ext2fs_numeric_progress_close(fs, &progress, NULL);
 644 write_superblock:
 645         retval = io_channel_write_blk64(fs->io,
 646                                         fs->super->s_first_data_block+1,
 647                                         1, buf);
 648         (void) ext2fs_free_mem(&buf);
 649         if (retval) {
 650                 com_err("create_journal_dev", retval, "%s",
 651                         _("while writing journal superblock"));
 652                 exit(1);
 653         }
 654 }
 655
 656 static void show_stats(ext2_filsys fs)
 657 {
 658         struct ext2_super_block *s = fs->super;
 659         char                    *os;
 660         blk64_t                 group_block;
 661         dgrp_t                  i;
 662         int                     need, col_left;
 663
 664         if (!verbose) {
 665                 printf(_("Creating filesystem with %llu %dk blocks and "
 666                          "%u inodes\n"),
 667                        (unsigned long long) ext2fs_blocks_count(s),
 668                        fs->blocksize >> 10, s->s_inodes_count);
 669                 goto skip_details;
 670         }
 671
 672         if (ext2fs_blocks_count(&fs_param) != ext2fs_blocks_count(s))
 673                 fprintf(stderr, _("warning: %llu blocks unused.\n\n"),
 674                         (unsigned long long) (ext2fs_blocks_count(&fs_param) -
 675                                               ext2fs_blocks_count(s)));
 676
 677         printf(_("Filesystem label=%.*s\n"), EXT2_LEN_STR(s->s_volume_name));
 678
 679         os = e2p_os2string(fs->super->s_creator_os);
 680         if (os)
 681                 printf(_("OS type: %s\n"), os);
 682         free(os);
 683         printf(_("Block size=%u (log=%u)\n"), fs->blocksize,
 684                 s->s_log_block_size);
 685         if (ext2fs_has_feature_bigalloc(fs->super))
 686                 printf(_("Cluster size=%u (log=%u)\n"),
 687                        fs->blocksize << fs->cluster_ratio_bits,
 688                        s->s_log_cluster_size);
 689         else
 690                 printf(_("Fragment size=%u (log=%u)\n"), EXT2_CLUSTER_SIZE(s),
 691                        s->s_log_cluster_size);
 692         printf(_("Stride=%u blocks, Stripe width=%u blocks\n"),
 693                s->s_raid_stride, s->s_raid_stripe_width);
 694         printf(_("%u inodes, %llu blocks\n"), s->s_inodes_count,
 695                (unsigned long long) ext2fs_blocks_count(s));
 696         printf(_("%llu blocks (%2.2f%%) reserved for the super user\n"),
 697                (unsigned long long) ext2fs_r_blocks_count(s),
 698                100.0 *  ext2fs_r_blocks_count(s) / ext2fs_blocks_count(s));
 699         printf(_("First data block=%u\n"), s->s_first_data_block);
 700         if (root_uid != 0 || root_gid != 0)
 701                 printf(_("Root directory owner=%u:%u\n"), root_uid, root_gid);
 702         if (s->s_reserved_gdt_blocks)
 703                 printf(_("Maximum filesystem blocks=%lu\n"),
 704                        (s->s_reserved_gdt_blocks + fs->desc_blocks) *
 705                        EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group);
 706         if (fs->group_desc_count > 1)
 707                 printf(_("%u block groups\n"), fs->group_desc_count);
 708         else
 709                 printf(_("%u block group\n"), fs->group_desc_count);
 710         if (ext2fs_has_feature_bigalloc(fs->super))
 711                 printf(_("%u blocks per group, %u clusters per group\n"),
 712                        s->s_blocks_per_group, s->s_clusters_per_group);
 713         else
 714                 printf(_("%u blocks per group, %u fragments per group\n"),
 715                        s->s_blocks_per_group, s->s_clusters_per_group);
 716         printf(_("%u inodes per group\n"), s->s_inodes_per_group);
 717
 718 skip_details:
 719         if (fs->group_desc_count == 1) {
 720                 printf("\n");
 721                 return;
 722         }
 723
 724         if (!e2p_is_null_uuid(s->s_uuid))
 725                 printf(_("Filesystem UUID: %s\n"), e2p_uuid2str(s->s_uuid));
 726         printf("%s", _("Superblock backups stored on blocks: "));
 727         group_block = s->s_first_data_block;
 728         col_left = 0;
 729         for (i = 1; i < fs->group_desc_count; i++) {
 730                 group_block += s->s_blocks_per_group;
 731                 if (!ext2fs_bg_has_super(fs, i))
 732                         continue;
 733                 if (i != 1)
 734                         printf(", ");
 735                 need = int_log10(group_block) + 2;
 736                 if (need > col_left) {
 737                         printf("\n\t");
 738                         col_left = 72;
 739                 }
 740                 col_left -= need;
 741                 printf("%llu", (unsigned long long) group_block);
 742         }
 743         printf("\n\n");
 744 }
 745
 746 /*
 747  * Returns true if making a file system for the Hurd, else 0
 748  */
 749 static int for_hurd(const char *os)
 750 {
 751         if (!os) {
 752 #ifdef __GNU__
 753                 return 1;
 754 #else
 755                 return 0;
 756 #endif
 757         }
 758         if (isdigit(*os))
 759                 return (atoi(os) == EXT2_OS_HURD);
 760         return (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0);
 761 }
 762
 763 /*
 764  * Set the S_CREATOR_OS field.  Return true if OS is known,
 765  * otherwise, 0.
 766  */
 767 static int set_os(struct ext2_super_block *sb, char *os)
 768 {
 769         if (isdigit (*os))
 770                 sb->s_creator_os = atoi (os);
 771         else if (strcasecmp(os, "linux") == 0)
 772                 sb->s_creator_os = EXT2_OS_LINUX;
 773         else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0)
 774                 sb->s_creator_os = EXT2_OS_HURD;
 775         else if (strcasecmp(os, "freebsd") == 0)
 776                 sb->s_creator_os = EXT2_OS_FREEBSD;
 777         else if (strcasecmp(os, "lites") == 0)
 778                 sb->s_creator_os = EXT2_OS_LITES;
 779         else
 780                 return 0;
 781         return 1;
 782 }
 783
 784 static int parse_range(char *p_start, char *p_end, char *p_hyphen)
 785 {
 786         blk64_t start, end;
 787         blk64_t *new_array;
 788
 789         /**
 790          * e.g  0-1024G
 791          *      ^      ^
 792          *      |      |
 793          *   p_start  p_end
 794          */
 795         end = parse_num_blocks(p_hyphen + 1, -1);
 796
 797         if (!isdigit(*(p_end - 1)) && isdigit(*(p_hyphen -1))) {
 798                 /* copy G/M/K unit to start value */
 799                 *p_hyphen = *(p_end - 1);
 800                 p_hyphen++;
 801         }
 802         *p_hyphen = 0;
 803
 804         start = parse_num_blocks(p_start, -1);
 805
 806         /* add to iops_range */
 807         if (iops_count == iops_size) {
 808                 iops_size <<= 1;
 809                 if (iops_size == 0) {
 810                         iops_size = iops_count;
 811                         return -E2BIG;
 812                 }
 813                 if (iops_range == iops_array)
 814                         new_array = malloc(iops_size * sizeof(blk64_t));
 815                 else
 816                         new_array = realloc(iops_range,
 817                                             iops_size * sizeof(blk64_t));
 818                 if (!new_array) {
 819                         iops_size >>= 1;
 820                         return -ENOMEM;
 821                 } else {
 822                         iops_range = new_array;
 823                 }
 824         }
 825
 826         iops_range[iops_count++] = start;
 827         iops_range[iops_count++] = end;
 828
 829         return 0;
 830 }
 831
 832 #define PATH_SET "PATH=/sbin"
 833
 834 static void parse_extended_opts(struct ext2_super_block *param,
 835                                 const char *opts)
 836 {
 837         char    *buf, *token, *next, *p, *arg, *badopt = 0;
 838         int     len;
 839         int     r_usage = 0;
 840         int     ret;
 841         int     encoding = -1;
 842         char    *encoding_flags = NULL;
 843
 844         len = strlen(opts);
 845         buf = malloc(len+1);
 846         if (!buf) {
 847                 fprintf(stderr, "%s",
 848                         _("Couldn't allocate memory to parse options!\n"));
 849                 exit(1);
 850         }
 851         strcpy(buf, opts);
 852         for (token = buf; token && *token; token = next) {
 853                 p = strchr(token, ',');
 854                 next = 0;
 855                 if (p) {
 856                         *p = 0;
 857                         next = p+1;
 858                 }
 859                 arg = strchr(token, '=');
 860                 if (arg) {
 861                         *arg = 0;
 862                         arg++;
 863                 }
 864                 if (strcmp(token, "desc-size") == 0 ||
 865                     strcmp(token, "desc_size") == 0) {
 866                         int desc_size;
 867
 868                         if (!ext2fs_has_feature_64bit(&fs_param)) {
 869                                 fprintf(stderr,
 870                                         _("%s requires '-O 64bit'\n"), token);
 871                                 r_usage++;
 872                                 continue;
 873                         }
 874                         if (param->s_reserved_gdt_blocks != 0) {
 875                                 fprintf(stderr,
 876                                         _("'%s' must be before 'resize=%u'\n"),
 877                                         token, param->s_reserved_gdt_blocks);
 878                                 r_usage++;
 879                                 continue;
 880                         }
 881                         if (!arg) {
 882                                 r_usage++;
 883                                 badopt = token;
 884                                 continue;
 885                         }
 886                         desc_size = strtoul(arg, &p, 0);
 887                         if (*p || (desc_size & (desc_size - 1))) {
 888                                 fprintf(stderr,
 889                                         _("Invalid desc_size: '%s'\n"), arg);
 890                                 r_usage++;
 891                                 continue;
 892                         }
 893                         param->s_desc_size = desc_size;
 894                 } else if (strcmp(token, "hash_seed") == 0) {
 895                         if (!arg) {
 896                                 r_usage++;
 897                                 badopt = token;
 898                                 continue;
 899                         }
 900                         if (uuid_parse(arg,
 901                                 (unsigned char *)param->s_hash_seed) != 0) {
 902                                 fprintf(stderr,
 903                                         _("Invalid hash seed: %s\n"), arg);
 904                                 r_usage++;
 905                                 continue;
 906                         }
 907                 } else if (strcmp(token, "offset") == 0) {
 908                         if (!arg) {
 909                                 r_usage++;
 910                                 badopt = token;
 911                                 continue;
 912                         }
 913                         offset = strtoull(arg, &p, 0);
 914                         if (*p) {
 915                                 fprintf(stderr, _("Invalid offset: %s\n"),
 916                                         arg);
 917                                 r_usage++;
 918                                 continue;
 919                         }
 920                 } else if (strcmp(token, "mmp_update_interval") == 0) {
 921                         if (!arg) {
 922                                 r_usage++;
 923                                 badopt = token;
 924                                 continue;
 925                         }
 926                         param->s_mmp_update_interval = strtoul(arg, &p, 0);
 927                         if (*p) {
 928                                 fprintf(stderr,
 929                                         _("Invalid mmp_update_interval: %s\n"),
 930                                         arg);
 931                                 r_usage++;
 932                                 continue;
 933                         }
 934                 } else if (strcmp(token, "no_copy_xattrs") == 0) {
 935                         no_copy_xattrs = 1;
 936                         continue;
 937                 } else if (strcmp(token, "num_backup_sb") == 0) {
 938                         if (!arg) {
 939                                 r_usage++;
 940                                 badopt = token;
 941                                 continue;
 942                         }
 943                         num_backups = strtoul(arg, &p, 0);
 944                         if (*p || num_backups > 2) {
 945                                 fprintf(stderr,
 946                                         _("Invalid # of backup "
 947                                           "superblocks: %s\n"),
 948                                         arg);
 949                                 r_usage++;
 950                                 continue;
 951                         }
 952                 } else if (strcmp(token, "packed_meta_blocks") == 0) {
 953                         if (arg)
 954                                 packed_meta_blocks = strtoul(arg, &p, 0);
 955                         else
 956                                 packed_meta_blocks = 1;
 957                         if (packed_meta_blocks)
 958                                 journal_location = 0;
 959                 } else if (strcmp(token, "stride") == 0) {
 960                         if (!arg) {
 961                                 r_usage++;
 962                                 badopt = token;
 963                                 continue;
 964                         }
 965                         param->s_raid_stride = strtoul(arg, &p, 0);
 966                         if (*p) {
 967                                 fprintf(stderr,
 968                                         _("Invalid stride parameter: %s\n"),
 969                                         arg);
 970                                 r_usage++;
 971                                 continue;
 972                         }
 973                 } else if (strcmp(token, "stripe-width") == 0 ||
 974                            strcmp(token, "stripe_width") == 0) {
 975                         if (!arg) {
 976                                 r_usage++;
 977                                 badopt = token;
 978                                 continue;
 979                         }
 980                         param->s_raid_stripe_width = strtoul(arg, &p, 0);
 981                         if (*p) {
 982                                 fprintf(stderr,
 983                                         _("Invalid stripe-width parameter: %s\n"),
 984                                         arg);
 985                                 r_usage++;
 986                                 continue;
 987                         }
 988                 } else if (!strcmp(token, "resize")) {
 989                         blk64_t resize;
 990                         unsigned long bpg, rsv_groups;
 991                         unsigned long group_desc_count, desc_blocks;
 992                         unsigned int gdpb, blocksize;
 993                         int rsv_gdb;
 994
 995                         if (!arg) {
 996                                 r_usage++;
 997                                 badopt = token;
 998                                 continue;
 999                         }
1000
1001                         resize = parse_num_blocks2(arg,
1002                                                    param->s_log_block_size);
1003
1004                         if (resize == 0) {
1005                                 fprintf(stderr,
1006                                         _("Invalid resize parameter: %s\n"),
1007                                         arg);
1008                                 r_usage++;
1009                                 continue;
1010                         }
1011                         if (resize <= ext2fs_blocks_count(param)) {
1012                                 fprintf(stderr, "%s",
1013                                         _("The resize maximum must be greater "
1014                                           "than the filesystem size.\n"));
1015                                 r_usage++;
1016                                 continue;
1017                         }
1018
1019                         blocksize = EXT2_BLOCK_SIZE(param);
1020                         bpg = param->s_blocks_per_group;
1021                         if (!bpg)
1022                                 bpg = blocksize * 8;
1023                         gdpb = EXT2_DESC_PER_BLOCK(param);
1024                         group_desc_count = (__u32) ext2fs_div64_ceil(
1025                                 ext2fs_blocks_count(param), bpg);
1026                         desc_blocks = (group_desc_count +
1027                                        gdpb - 1) / gdpb;
1028                         rsv_groups = ext2fs_div64_ceil(resize, bpg);
1029                         rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) -
1030                                 desc_blocks;
1031                         if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param))
1032                                 rsv_gdb = EXT2_ADDR_PER_BLOCK(param);
1033
1034                         if (rsv_gdb > 0) {
1035                                 if (param->s_rev_level == EXT2_GOOD_OLD_REV) {
1036                                         fprintf(stderr, "%s",
1037         _("On-line resizing not supported with revision 0 filesystems\n"));
1038                                         free(buf);
1039                                         exit(1);
1040                                 }
1041                                 ext2fs_set_feature_resize_inode(param);
1042
1043                                 param->s_reserved_gdt_blocks = rsv_gdb;
1044                         }
1045                 } else if (!strcmp(token, "test_fs")) {
1046                         param->s_flags |= EXT2_FLAGS_TEST_FILESYS;
1047                 } else if (!strcmp(token, "lazy_itable_init")) {
1048                         if (arg)
1049                                 lazy_itable_init = strtoul(arg, &p, 0);
1050                         else
1051                                 lazy_itable_init = 1;
1052                 } else if (!strcmp(token, "assume_storage_prezeroed")) {
1053                         if (arg)
1054                                 assume_storage_prezeroed = strtoul(arg, &p, 0);
1055                         else
1056                                 assume_storage_prezeroed = 1;
1057                 } else if (!strcmp(token, "lazy_journal_init")) {
1058                         if (arg)
1059                                 journal_flags |= strtoul(arg, &p, 0) ?
1060                                                 EXT2_MKJOURNAL_LAZYINIT : 0;
1061                         else
1062                                 journal_flags |= EXT2_MKJOURNAL_LAZYINIT;
1063                 } else if (!strcmp(token, "root_owner")) {
1064                         if (arg) {
1065                                 root_uid = strtoul(arg, &p, 0);
1066                                 if (*p != ':') {
1067                                         fprintf(stderr,
1068                                                 _("Invalid root_owner: '%s'\n"),
1069                                                 arg);
1070                                         r_usage++;
1071                                         continue;
1072                                 }
1073                                 p++;
1074                                 root_gid = strtoul(p, &p, 0);
1075                                 if (*p) {
1076                                         fprintf(stderr,
1077                                                 _("Invalid root_owner: '%s'\n"),
1078                                                 arg);
1079                                         r_usage++;
1080                                         continue;
1081                                 }
1082                         } else {
1083                                 root_uid = getuid();
1084                                 root_gid = getgid();
1085                         }
1086                 } else if (!strcmp(token, "root_perms")) {
1087                         if (arg) {
1088                                 root_perms = strtoul(arg, &p, 8);
1089                         }
1090                 } else if (!strcmp(token, "discard")) {
1091                         discard = 1;
1092                 } else if (!strcmp(token, "nodiscard")) {
1093                         discard = 0;
1094                 } else if (!strcmp(token, "quotatype")) {
1095                         char *errtok = NULL;
1096
1097                         if (!arg) {
1098                                 r_usage++;
1099                                 badopt = token;
1100                                 continue;
1101                         }
1102                         quotatype_bits = 0;
1103                         ret = parse_quota_types(arg, &quotatype_bits, &errtok);
1104                         if (ret) {
1105                                 if (errtok) {
1106                                         fprintf(stderr,
1107                                 "Failed to parse quota type at %s", errtok);
1108                                         free(errtok);
1109                                 } else
1110                                         com_err(program_name, ret,
1111                                                 "while parsing quota type");
1112                                 r_usage++;
1113                                 badopt = token;
1114                                 continue;
1115                         }
1116                 } else if (!strcmp(token, "android_sparse")) {
1117                         android_sparse_file = 1;
1118                 } else if (!strcmp(token, "encoding")) {
1119                         if (!arg) {
1120                                 r_usage++;
1121                                 continue;
1122                         }
1123
1124                         encoding = e2p_str2encoding(arg);
1125                         if (encoding < 0) {
1126                                 fprintf(stderr, _("Invalid encoding: %s"), arg);
1127                                 r_usage++;
1128                                 continue;
1129                         }
1130                         param->s_encoding = encoding;
1131                         ext2fs_set_feature_casefold(param);
1132                 } else if (!strcmp(token, "encoding_flags")) {
1133                         if (!arg) {
1134                                 r_usage++;
1135                                 continue;
1136                         }
1137                         encoding_flags = arg;
1138                 } else if (!strcmp(token, "orphan_file_size")) {
1139                         if (!arg) {
1140                                 r_usage++;
1141                                 badopt = token;
1142                                 continue;
1143                         }
1144                         orphan_file_blocks = parse_num_blocks2(arg,
1145                                                 fs_param.s_log_block_size);
1146                         if (orphan_file_blocks == 0) {
1147                                 fprintf(stderr,
1148                                         _("Invalid size of orphan file %s\n"),
1149                                         arg);
1150                                 r_usage++;
1151                                 continue;
1152                         }
1153                 } else if (!strcmp(token, "iops")) {
1154                         char *p_colon, *p_hyphen;
1155
1156                         /* example: iops=0-1024G:4096-8192G */
1157
1158                         if (!arg) {
1159                                 r_usage++;
1160                                 badopt = token;
1161                                 continue;
1162                         }
1163                         p_colon = strchr(arg, ':');
1164                         while (p_colon != NULL) {
1165                                 *p_colon = 0;
1166
1167                                 p_hyphen = strchr(arg, '-');
1168                                 if (p_hyphen == NULL) {
1169                                         fprintf(stderr,
1170                                                 _("error: parse iops %s\n"),
1171                                                 arg);
1172                                         r_usage++;
1173                                         badopt = token;
1174                                         break;
1175                                 }
1176
1177                                 ret = parse_range(arg, p_colon, p_hyphen);
1178                                 if (ret < 0) {
1179                                         fprintf(stderr,
1180                                                 _("error: parse iops %s:%d\n"),
1181                                                 arg, ret);
1182                                         r_usage++;
1183                                         badopt = token;
1184                                         break;
1185                                 }
1186
1187                                 arg = p_colon + 1;
1188                                 p_colon = strchr(arg, ':');
1189                         }
1190                         p_hyphen = strchr(arg, '-');
1191                         if (p_hyphen == NULL) {
1192                                 fprintf(stderr,
1193                                         _("error: parse iops %s\n"), arg);
1194                                 r_usage++;
1195                                 badopt = token;
1196                                 continue;
1197                         }
1198
1199                         ret = parse_range(arg, arg + strlen(arg), p_hyphen);
1200                         if (ret < 0) {
1201                                 fprintf(stderr,
1202                                         _("error: parse iops %s:%d\n"),
1203                                         arg, ret);
1204                                 r_usage++;
1205                                 badopt = token;
1206                                 continue;
1207                         }
1208                 } else {
1209                         r_usage++;
1210                         badopt = token;
1211                 }
1212         }
1213         if (r_usage) {
1214                 fprintf(stderr, _("\nBad option(s) specified: %s\n\n"
1215                         "Extended options are separated by commas, "
1216                         "and may take an argument which\n"
1217                         "\tis set off by an equals ('=') sign.\n\n"
1218                         "Valid extended options are:\n"
1219                         "\tmmp_update_interval=<interval>\n"
1220                         "\tnum_backup_sb=<0|1|2>\n"
1221                         "\tstride=<RAID per-disk data chunk in blocks>\n"
1222                         "\tstripe-width=<RAID stride * data disks in blocks>\n"
1223                         "\toffset=<offset to create the file system>\n"
1224                         "\tresize=<resize maximum size in blocks>\n"
1225                         "\tpacked_meta_blocks=<0 to disable, 1 to enable>\n"
1226                         "\tlazy_itable_init=<0 to disable, 1 to enable>\n"
1227                         "\tlazy_journal_init=<0 to disable, 1 to enable>\n"
1228                         "\troot_owner=<uid of root dir>:<gid of root dir>\n"
1229                         "\troot_perms=<octal root directory permissions>\n"
1230                         "\ttest_fs\n"
1231                         "\tdiscard\n"
1232                         "\tnodiscard\n"
1233                         "\tencoding=<encoding>\n"
1234                         "\tencoding_flags=<flags>\n"
1235                         "\tiops=<iops storage size range>\n"
1236                         "\tquotatype=<quota type(s) to be enabled>\n"
1237                         "\tassume_storage_prezeroed=<0 to disable, 1 to enable>\n\n"),
1238                         badopt ? badopt : "");
1239                 free(buf);
1240                 if (iops_range != iops_array)
1241                         free(iops_range);
1242                 exit(1);
1243         }
1244         if (param->s_raid_stride &&
1245             (param->s_raid_stripe_width % param->s_raid_stride) != 0)
1246                 fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even "
1247                                   "multiple of stride %u.\n\n"),
1248                         param->s_raid_stripe_width, param->s_raid_stride);
1249
1250         if (ext2fs_has_feature_casefold(param)) {
1251                 param->s_encoding_flags =
1252                         e2p_get_encoding_flags(param->s_encoding);
1253
1254                 if (encoding_flags &&
1255                     e2p_str2encoding_flags(param->s_encoding, encoding_flags,
1256                                            &param->s_encoding_flags)) {
1257                         fprintf(stderr, _("error: Invalid encoding flag: %s\n"),
1258                                 encoding_flags);
1259                         free(buf);
1260                         exit(1);
1261                 }
1262         } else if (encoding_flags) {
1263                 fprintf(stderr, _("error: An encoding must be explicitly "
1264                                   "specified when passing encoding-flags\n"));
1265                 free(buf);
1266                 exit(1);
1267         }
1268
1269         free(buf);
1270 }
1271
1272 static __u32 ok_features[3] = {
1273         /* Compat */
1274         EXT3_FEATURE_COMPAT_HAS_JOURNAL |
1275                 EXT2_FEATURE_COMPAT_RESIZE_INODE |
1276                 EXT2_FEATURE_COMPAT_DIR_INDEX |
1277                 EXT2_FEATURE_COMPAT_EXT_ATTR |
1278                 EXT4_FEATURE_COMPAT_SPARSE_SUPER2 |
1279                 EXT4_FEATURE_COMPAT_FAST_COMMIT |
1280                 EXT4_FEATURE_COMPAT_STABLE_INODES |
1281                 EXT4_FEATURE_COMPAT_ORPHAN_FILE,
1282         /* Incompat */
1283         EXT2_FEATURE_INCOMPAT_FILETYPE|
1284                 EXT3_FEATURE_INCOMPAT_EXTENTS|
1285                 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
1286                 EXT2_FEATURE_INCOMPAT_META_BG|
1287                 EXT4_FEATURE_INCOMPAT_FLEX_BG|
1288                 EXT4_FEATURE_INCOMPAT_EA_INODE|
1289                 EXT4_FEATURE_INCOMPAT_MMP |
1290                 EXT4_FEATURE_INCOMPAT_DIRDATA|
1291                 EXT4_FEATURE_INCOMPAT_64BIT|
1292                 EXT4_FEATURE_INCOMPAT_INLINE_DATA|
1293                 EXT4_FEATURE_INCOMPAT_ENCRYPT |
1294                 EXT4_FEATURE_INCOMPAT_CASEFOLD |
1295                 EXT4_FEATURE_INCOMPAT_CSUM_SEED |
1296                 EXT4_FEATURE_INCOMPAT_LARGEDIR,
1297         /* R/O compat */
1298         EXT2_FEATURE_RO_COMPAT_LARGE_FILE|
1299                 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
1300                 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
1301                 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
1302                 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|
1303                 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
1304                 EXT4_FEATURE_RO_COMPAT_BIGALLOC|
1305                 EXT4_FEATURE_RO_COMPAT_QUOTA|
1306                 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|
1307                 EXT4_FEATURE_RO_COMPAT_PROJECT|
1308                 EXT4_FEATURE_RO_COMPAT_VERITY
1309 };
1310
1311
1312 static void syntax_err_report(const char *filename, long err, int line_num)
1313 {
1314         fprintf(stderr,
1315                 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"),
1316                 filename, line_num, error_message(err));
1317         exit(1);
1318 }
1319
1320 static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 };
1321
1322 static void edit_feature(const char *str, __u32 *compat_array)
1323 {
1324         if (!str)
1325                 return;
1326
1327         if (e2p_edit_feature(str, compat_array, ok_features)) {
1328                 fprintf(stderr, _("Invalid filesystem option set: %s\n"),
1329                         str);
1330                 exit(1);
1331         }
1332 }
1333
1334 static void edit_mntopts(const char *str, __u32 *mntopts)
1335 {
1336         if (!str)
1337                 return;
1338
1339         if (e2p_edit_mntopts(str, mntopts, ~0)) {
1340                 fprintf(stderr, _("Invalid mount option set: %s\n"),
1341                         str);
1342                 exit(1);
1343         }
1344 }
1345
1346 struct str_list {
1347         char **list;
1348         int num;
1349         int max;
1350 };
1351
1352 static errcode_t init_list(struct str_list *sl)
1353 {
1354         sl->num = 0;
1355         sl->max = 1;
1356         sl->list = malloc((sl->max+1) * sizeof(char *));
1357         if (!sl->list)
1358                 return ENOMEM;
1359         sl->list[0] = 0;
1360         return 0;
1361 }
1362
1363 static errcode_t push_string(struct str_list *sl, const char *str)
1364 {
1365         char **new_list;
1366
1367         if (sl->num >= sl->max) {
1368                 sl->max += 2;
1369                 new_list = realloc(sl->list, (sl->max+1) * sizeof(char *));
1370                 if (!new_list)
1371                         return ENOMEM;
1372                 sl->list = new_list;
1373         }
1374         sl->list[sl->num] = malloc(strlen(str)+1);
1375         if (sl->list[sl->num] == 0)
1376                 return ENOMEM;
1377         strcpy(sl->list[sl->num], str);
1378         sl->num++;
1379         sl->list[sl->num] = 0;
1380         return 0;
1381 }
1382
1383 static void print_str_list(char **list)
1384 {
1385         char **cpp;
1386
1387         for (cpp = list; *cpp; cpp++) {
1388                 printf("'%s'", *cpp);
1389                 if (cpp[1])
1390                         fputs(", ", stdout);
1391         }
1392         fputc('\n', stdout);
1393 }
1394
1395 /*
1396  * Return TRUE if the profile has the given subsection
1397  */
1398 static int profile_has_subsection(profile_t prof, const char *section,
1399                                   const char *subsection)
1400 {
1401         void                    *state;
1402         const char              *names[4];
1403         char                    *name;
1404         int                     ret = 0;
1405
1406         names[0] = section;
1407         names[1] = subsection;
1408         names[2] = 0;
1409
1410         if (profile_iterator_create(prof, names,
1411                                     PROFILE_ITER_LIST_SECTION |
1412                                     PROFILE_ITER_RELATIONS_ONLY, &state))
1413                 return 0;
1414
1415         if ((profile_iterator(&state, &name, 0) == 0) && name) {
1416                 free(name);
1417                 ret = 1;
1418         }
1419
1420         profile_iterator_free(&state);
1421         return ret;
1422 }
1423
1424 static char **parse_fs_type(const char *fs_type,
1425                             const char *usage_types,
1426                             struct ext2_super_block *sb,
1427                             blk64_t fs_blocks_count,
1428                             char *progname)
1429 {
1430         const char      *ext_type = 0;
1431         char            *parse_str;
1432         char            *profile_type = 0;
1433         char            *cp, *t;
1434         const char      *size_type;
1435         struct str_list list;
1436         unsigned long long meg;
1437         int             is_hurd = for_hurd(creator_os);
1438
1439         if (init_list(&list))
1440                 return 0;
1441
1442         if (fs_type)
1443                 ext_type = fs_type;
1444         else if (is_hurd)
1445                 ext_type = "ext2";
1446         else if (!strcmp(program_name, "mke3fs"))
1447                 ext_type = "ext3";
1448         else if (!strcmp(program_name, "mke4fs"))
1449                 ext_type = "ext4";
1450         else if (progname) {
1451                 ext_type = strrchr(progname, '/');
1452                 if (ext_type)
1453                         ext_type++;
1454                 else
1455                         ext_type = progname;
1456
1457                 if (!strncmp(ext_type, "mkfs.", 5)) {
1458                         ext_type += 5;
1459                         if (ext_type[0] == 0)
1460                                 ext_type = 0;
1461                 } else
1462                         ext_type = 0;
1463         }
1464
1465         if (!ext_type) {
1466                 profile_get_string(profile, "defaults", "fs_type", 0,
1467                                    "ext2", &profile_type);
1468                 ext_type = profile_type;
1469                 if (!strcmp(ext_type, "ext2") && (journal_size != 0))
1470                         ext_type = "ext3";
1471         }
1472
1473
1474         if (!profile_has_subsection(profile, "fs_types", ext_type) &&
1475             strcmp(ext_type, "ext2")) {
1476                 printf(_("\nYour mke2fs.conf file does not define the "
1477                          "%s filesystem type.\n"), ext_type);
1478                 if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") ||
1479                     !strcmp(ext_type, "ext4dev")) {
1480                         printf("%s", _("You probably need to install an "
1481                                        "updated mke2fs.conf file.\n\n"));
1482                 }
1483                 if (!force) {
1484                         printf("%s", _("Aborting...\n"));
1485                         exit(1);
1486                 }
1487         }
1488
1489         meg = (1024 * 1024) / EXT2_BLOCK_SIZE(sb);
1490         if (fs_blocks_count < 3 * meg)
1491                 size_type = "floppy";
1492         else if (fs_blocks_count < 512 * meg)
1493                 size_type = "small";
1494         else if (fs_blocks_count < 4 * 1024 * 1024 * meg)
1495                 size_type = "default";
1496         else if (fs_blocks_count < 16 * 1024 * 1024 * meg)
1497                 size_type = "big";
1498         else
1499                 size_type = "huge";
1500
1501         if (!usage_types)
1502                 usage_types = size_type;
1503
1504         parse_str = malloc(strlen(usage_types)+1);
1505         if (!parse_str) {
1506                 free(profile_type);
1507                 free(list.list);
1508                 return 0;
1509         }
1510         strcpy(parse_str, usage_types);
1511
1512         if (ext_type)
1513                 push_string(&list, ext_type);
1514         cp = parse_str;
1515         while (1) {
1516                 t = strchr(cp, ',');
1517                 if (t)
1518                         *t = '\0';
1519
1520                 if (*cp) {
1521                         if (profile_has_subsection(profile, "fs_types", cp))
1522                                 push_string(&list, cp);
1523                         else if (strcmp(cp, "default") != 0)
1524                                 fprintf(stderr,
1525                                         _("\nWarning: the fs_type %s is not "
1526                                           "defined in mke2fs.conf\n\n"),
1527                                         cp);
1528                 }
1529                 if (t)
1530                         cp = t+1;
1531                 else
1532                         break;
1533         }
1534         free(parse_str);
1535         free(profile_type);
1536         if (is_hurd)
1537                 push_string(&list, "hurd");
1538         return (list.list);
1539 }
1540
1541 char *get_string_from_profile(char **types, const char *opt,
1542                                      const char *def_val)
1543 {
1544         char *ret = 0;
1545         int i;
1546
1547         for (i=0; types[i]; i++);
1548         for (i-=1; i >=0 ; i--) {
1549                 profile_get_string(profile, "fs_types", types[i],
1550                                    opt, 0, &ret);
1551                 if (ret)
1552                         return ret;
1553         }
1554         profile_get_string(profile, "defaults", opt, 0, def_val, &ret);
1555         return (ret);
1556 }
1557
1558 int get_int_from_profile(char **types, const char *opt, int def_val)
1559 {
1560         int ret;
1561         char **cpp;
1562
1563         profile_get_integer(profile, "defaults", opt, 0, def_val, &ret);
1564         for (cpp = types; *cpp; cpp++)
1565                 profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret);
1566         return ret;
1567 }
1568
1569 static unsigned int get_uint_from_profile(char **types, const char *opt,
1570                                         unsigned int def_val)
1571 {
1572         unsigned int ret;
1573         char **cpp;
1574
1575         profile_get_uint(profile, "defaults", opt, 0, def_val, &ret);
1576         for (cpp = types; *cpp; cpp++)
1577                 profile_get_uint(profile, "fs_types", *cpp, opt, ret, &ret);
1578         return ret;
1579 }
1580
1581 static double get_double_from_profile(char **types, const char *opt,
1582                                       double def_val)
1583 {
1584         double ret;
1585         char **cpp;
1586
1587         profile_get_double(profile, "defaults", opt, 0, def_val, &ret);
1588         for (cpp = types; *cpp; cpp++)
1589                 profile_get_double(profile, "fs_types", *cpp, opt, ret, &ret);
1590         return ret;
1591 }
1592
1593 int get_bool_from_profile(char **types, const char *opt, int def_val)
1594 {
1595         int ret;
1596         char **cpp;
1597
1598         profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret);
1599         for (cpp = types; *cpp; cpp++)
1600                 profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret);
1601         return ret;
1602 }
1603
1604 extern const char *mke2fs_default_profile;
1605 static const char *default_files[] = { "<default>", 0 };
1606
1607 struct device_param {
1608         unsigned long min_io;           /* preferred minimum IO size */
1609         unsigned long opt_io;           /* optimal IO size */
1610         unsigned long alignment_offset; /* alignment offset wrt physical block size */
1611         unsigned int dax:1;             /* supports dax? */
1612 };
1613
1614 #define OPTIMIZED_STRIPE_WIDTH  512
1615 #define OPTIMIZED_STRIDE        512
1616
1617 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1618 /*
1619  * Sets the geometry of a device (stripe/stride), and returns the
1620  * device's alignment offset, if any, or a negative error.
1621  */
1622 static int get_device_geometry(const char *file,
1623                                unsigned int blocksize,
1624                                unsigned int psector_size,
1625                                struct device_param *dev_param)
1626 {
1627         int rc = -1;
1628         blkid_probe pr;
1629         blkid_topology tp;
1630         struct stat statbuf;
1631
1632         memset(dev_param, 0, sizeof(*dev_param));
1633
1634         /* Nothing to do for a regular file */
1635         if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode))
1636                 return 0;
1637
1638         pr = blkid_new_probe_from_filename(file);
1639         if (!pr)
1640                 goto out;
1641
1642         tp = blkid_probe_get_topology(pr);
1643         if (!tp)
1644                 goto out;
1645
1646         dev_param->min_io = blkid_topology_get_minimum_io_size(tp);
1647         if (dev_param->min_io > OPTIMIZED_STRIDE) {
1648                 fprintf(stdout,
1649                         "detected raid stride %lu too large, use optimum %u\n",
1650                         dev_param->min_io, OPTIMIZED_STRIDE);
1651                 dev_param->min_io = OPTIMIZED_STRIDE;
1652         }
1653         dev_param->opt_io = blkid_topology_get_optimal_io_size(tp);
1654         if (dev_param->opt_io > OPTIMIZED_STRIPE_WIDTH) {
1655                 fprintf(stdout,
1656                         "detected raid stripe width %lu too large, use optimum %u\n",
1657                         dev_param->opt_io, OPTIMIZED_STRIPE_WIDTH);
1658                 dev_param->opt_io = OPTIMIZED_STRIPE_WIDTH;
1659         }
1660         if ((dev_param->min_io == 0) && (psector_size > blocksize))
1661                 dev_param->min_io = psector_size;
1662         if ((dev_param->opt_io == 0) && dev_param->min_io > 0)
1663                 dev_param->opt_io = dev_param->min_io;
1664         if ((dev_param->opt_io == 0) && (psector_size > blocksize))
1665                 dev_param->opt_io = psector_size;
1666
1667         dev_param->alignment_offset = blkid_topology_get_alignment_offset(tp);
1668 #ifdef HAVE_BLKID_TOPOLOGY_GET_DAX
1669         dev_param->dax = blkid_topology_get_dax(tp);
1670 #endif
1671         rc = 0;
1672 out:
1673         blkid_free_probe(pr);
1674         return rc;
1675 }
1676 #endif
1677
1678 static void PRS(int argc, char *argv[])
1679 {
1680         int             b, c, flags;
1681         int             cluster_size = 0;
1682         char            *tmp, **cpp;
1683         int             explicit_fssize = 0;
1684         int             blocksize = 0;
1685         int             inode_ratio = 0;
1686         int             inode_size = 0;
1687         unsigned long   flex_bg_size = 0;
1688         double          reserved_ratio = -1.0;
1689         int             lsector_size = 0, psector_size = 0;
1690         int             show_version_only = 0, is_device = 0;
1691         unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */
1692         int             default_orphan_file = 0;
1693         int             default_csum_seed = 0;
1694         errcode_t       retval;
1695         char *          oldpath = getenv("PATH");
1696         char *          extended_opts = 0;
1697         char *          fs_type = 0;
1698         char *          usage_types = 0;
1699         /*
1700          * NOTE: A few words about fs_blocks_count and blocksize:
1701          *
1702          * Initially, blocksize is set to zero, which implies 1024.
1703          * If -b is specified, blocksize is updated to the user's value.
1704          *
1705          * Next, the device size or the user's "blocks" command line argument
1706          * is used to set fs_blocks_count; the units are blocksize.
1707          *
1708          * Later, if blocksize hasn't been set and the profile specifies a
1709          * blocksize, then blocksize is updated and fs_blocks_count is scaled
1710          * appropriately.  Note the change in units!
1711          *
1712          * Finally, we complain about fs_blocks_count > 2^32 on a non-64bit fs.
1713          */
1714         blk64_t         fs_blocks_count = 0;
1715         int             s_opt = -1, r_opt = -1;
1716         char            *fs_features = 0;
1717         int             fs_features_size = 0;
1718         int             use_bsize;
1719         char            *newpath;
1720         int             pathlen = sizeof(PATH_SET) + 1;
1721 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1722         struct device_param dev_param;
1723 #endif
1724
1725         if (oldpath)
1726                 pathlen += strlen(oldpath);
1727         newpath = malloc(pathlen);
1728         if (!newpath) {
1729                 fprintf(stderr, "%s",
1730                         _("Couldn't allocate memory for new PATH.\n"));
1731                 exit(1);
1732         }
1733         strcpy(newpath, PATH_SET);
1734
1735         /* Update our PATH to include /sbin  */
1736         if (oldpath) {
1737                 strcat (newpath, ":");
1738                 strcat (newpath, oldpath);
1739         }
1740         putenv (newpath);
1741
1742         /* Determine the system page size if possible */
1743 #ifdef HAVE_SYSCONF
1744 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
1745 #define _SC_PAGESIZE _SC_PAGE_SIZE
1746 #endif
1747 #ifdef _SC_PAGESIZE
1748         {
1749                 long sysval = sysconf(_SC_PAGESIZE);
1750
1751                 if (sysval > 0)
1752                         sys_page_size = sysval;
1753         }
1754 #endif /* _SC_PAGESIZE */
1755 #endif /* HAVE_SYSCONF */
1756
1757         if ((tmp = getenv("MKE2FS_CONFIG")) != NULL)
1758                 config_fn[0] = tmp;
1759         profile_set_syntax_err_cb(syntax_err_report);
1760         retval = profile_init(config_fn, &profile);
1761         if (retval == ENOENT) {
1762                 retval = profile_init(default_files, &profile);
1763                 if (retval)
1764                         goto profile_error;
1765                 retval = profile_set_default(profile, mke2fs_default_profile);
1766                 if (retval)
1767                         goto profile_error;
1768         } else if (retval) {
1769 profile_error:
1770                 fprintf(stderr, _("Couldn't init profile successfully"
1771                                   " (error: %ld).\n"), retval);
1772                 exit(1);
1773         }
1774
1775         setbuf(stdout, NULL);
1776         setbuf(stderr, NULL);
1777         add_error_table(&et_ext2_error_table);
1778         add_error_table(&et_prof_error_table);
1779         memset(&fs_param, 0, sizeof(struct ext2_super_block));
1780         fs_param.s_rev_level = 1;  /* Create revision 1 filesystems now */
1781
1782         if (ext2fs_is_before_linux_ver(2, 2, 0))
1783                 fs_param.s_rev_level = 0;
1784
1785         if (argc && *argv) {
1786                 program_name = get_progname(*argv);
1787
1788                 /* If called as mkfs.ext3, create a journal inode */
1789                 if (!strcmp(program_name, "mkfs.ext3") ||
1790                     !strcmp(program_name, "mke3fs"))
1791                         journal_size = -1;
1792         }
1793
1794         while ((c = getopt (argc, argv,
1795                     "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) {
1796                 switch (c) {
1797                 case 'b':
1798                         blocksize = parse_num_blocks2(optarg, -1);
1799                         b = (blocksize > 0) ? blocksize : -blocksize;
1800                         if (b < EXT2_MIN_BLOCK_SIZE ||
1801                             b > EXT2_MAX_BLOCK_SIZE) {
1802                                 com_err(program_name, 0,
1803                                         _("invalid block size - %s"), optarg);
1804                                 exit(1);
1805                         }
1806                         if (blocksize > 4096)
1807                                 fprintf(stderr, _("Warning: blocksize %d not "
1808                                                   "usable on most systems.\n"),
1809                                         blocksize);
1810                         if (blocksize > 0)
1811                                 fs_param.s_log_block_size =
1812                                         int_log2(blocksize >>
1813                                                  EXT2_MIN_BLOCK_LOG_SIZE);
1814                         break;
1815                 case 'c':       /* Check for bad blocks */
1816                         cflag++;
1817                         break;
1818                 case 'C':
1819                         cluster_size = parse_num_blocks2(optarg, -1);
1820                         if (cluster_size <= EXT2_MIN_CLUSTER_SIZE ||
1821                             cluster_size > EXT2_MAX_CLUSTER_SIZE) {
1822                                 com_err(program_name, 0,
1823                                         _("invalid cluster size - %s"),
1824                                         optarg);
1825                                 exit(1);
1826                         }
1827                         break;
1828                 case 'd':
1829                         src_root = optarg;
1830                         break;
1831                 case 'D':
1832                         direct_io = 1;
1833                         break;
1834                 case 'R':
1835                         com_err(program_name, 0, "%s",
1836                                 _("'-R' is deprecated, use '-E' instead"));
1837                         /* fallthrough */
1838                 case 'E':
1839                         extended_opts = optarg;
1840                         break;
1841                 case 'e':
1842                         if (strcmp(optarg, "continue") == 0)
1843                                 errors_behavior = EXT2_ERRORS_CONTINUE;
1844                         else if (strcmp(optarg, "remount-ro") == 0)
1845                                 errors_behavior = EXT2_ERRORS_RO;
1846                         else if (strcmp(optarg, "panic") == 0)
1847                                 errors_behavior = EXT2_ERRORS_PANIC;
1848                         else {
1849                                 com_err(program_name, 0,
1850                                         _("bad error behavior - %s"),
1851                                         optarg);
1852                                 usage();
1853                         }
1854                         break;
1855                 case 'F':
1856                         force++;
1857                         break;
1858                 case 'g':
1859                         fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
1860                         if (*tmp) {
1861                                 com_err(program_name, 0, "%s",
1862                                 _("Illegal number for blocks per group"));
1863                                 exit(1);
1864                         }
1865                         if ((fs_param.s_blocks_per_group % 8) != 0) {
1866                                 com_err(program_name, 0, "%s",
1867                                 _("blocks per group must be multiple of 8"));
1868                                 exit(1);
1869                         }
1870                         break;
1871                 case 'G':
1872                         flex_bg_size = strtoul(optarg, &tmp, 0);
1873                         if (*tmp) {
1874                                 com_err(program_name, 0, "%s",
1875                                         _("Illegal number for flex_bg size"));
1876                                 exit(1);
1877                         }
1878                         if (flex_bg_size < 1 ||
1879                             (flex_bg_size & (flex_bg_size-1)) != 0) {
1880                                 com_err(program_name, 0, "%s",
1881                                         _("flex_bg size must be a power of 2"));
1882                                 exit(1);
1883                         }
1884                         if (flex_bg_size > MAX_32_NUM) {
1885                                 com_err(program_name, 0,
1886                                 _("flex_bg size (%lu) must be less than"
1887                                 " or equal to 2^31"), flex_bg_size);
1888                                 exit(1);
1889                         }
1890                         break;
1891                 case 'i':
1892                         inode_ratio = parse_num_blocks(optarg, -1);
1893                         if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
1894                             inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024) {
1895                                 com_err(program_name, 0,
1896                                         _("invalid inode ratio %s (min %d/max %d)"),
1897                                         optarg, EXT2_MIN_BLOCK_SIZE,
1898                                         EXT2_MAX_BLOCK_SIZE * 1024);
1899                                 exit(1);
1900                         }
1901                         break;
1902                 case 'I':
1903                         inode_size = strtoul(optarg, &tmp, 0);
1904                         if (*tmp) {
1905                                 com_err(program_name, 0,
1906                                         _("invalid inode size - %s"), optarg);
1907                                 exit(1);
1908                         }
1909                         break;
1910                 case 'j':
1911                         if (!journal_size)
1912                                 journal_size = -1;
1913                         if (!journal_fc_size)
1914                                 journal_fc_size = -1;
1915                         break;
1916                 case 'J':
1917                         parse_journal_opts(optarg);
1918                         break;
1919                 case 'K':
1920                         fprintf(stderr, "%s",
1921                                 _("Warning: -K option is deprecated and "
1922                                   "should not be used anymore. Use "
1923                                   "\'-E nodiscard\' extended option "
1924                                   "instead!\n"));
1925                         discard = 0;
1926                         break;
1927                 case 'l':
1928                         bad_blocks_filename = realloc(bad_blocks_filename,
1929                                                       strlen(optarg) + 1);
1930                         if (!bad_blocks_filename) {
1931                                 com_err(program_name, ENOMEM, "%s",
1932                                         _("in malloc for bad_blocks_filename"));
1933                                 exit(1);
1934                         }
1935                         strcpy(bad_blocks_filename, optarg);
1936                         break;
1937                 case 'L':
1938                         volume_label = optarg;
1939                         if (strlen(volume_label) > EXT2_LABEL_LEN) {
1940                                 volume_label[EXT2_LABEL_LEN] = '\0';
1941                                 fprintf(stderr, _("Warning: label too long; will be truncated to '%s'\n\n"),
1942                                         volume_label);
1943                         }
1944                         break;
1945                 case 'm':
1946                         reserved_ratio = strtod(optarg, &tmp);
1947                         if ( *tmp || reserved_ratio > 50 ||
1948                              reserved_ratio < 0) {
1949                                 com_err(program_name, 0,
1950                                         _("invalid reserved blocks percent - %s"),
1951                                         optarg);
1952                                 exit(1);
1953                         }
1954                         break;
1955                 case 'M':
1956                         mount_dir = optarg;
1957                         break;
1958                 case 'n':
1959                         noaction++;
1960                         break;
1961                 case 'N':
1962                         num_inodes = strtoul(optarg, &tmp, 0);
1963                         if (*tmp) {
1964                                 com_err(program_name, 0,
1965                                         _("bad num inodes - %s"), optarg);
1966                                         exit(1);
1967                         }
1968                         break;
1969                 case 'o':
1970                         creator_os = optarg;
1971                         break;
1972                 case 'O':
1973                         retval = ext2fs_resize_mem(fs_features_size,
1974                                    fs_features_size + 1 + strlen(optarg),
1975                                                    &fs_features);
1976                         if (retval) {
1977                                 com_err(program_name, retval,
1978                                      _("while allocating fs_feature string"));
1979                                 exit(1);
1980                         }
1981                         if (fs_features_size)
1982                                 strcat(fs_features, ",");
1983                         else
1984                                 fs_features[0] = 0;
1985                         strcat(fs_features, optarg);
1986                         fs_features_size += 1 + strlen(optarg);
1987                         break;
1988                 case 'q':
1989                         quiet = 1;
1990                         break;
1991                 case 'r':
1992                         r_opt = strtoul(optarg, &tmp, 0);
1993                         if (*tmp) {
1994                                 com_err(program_name, 0,
1995                                         _("bad revision level - %s"), optarg);
1996                                 exit(1);
1997                         }
1998                         if (r_opt > EXT2_MAX_SUPP_REV) {
1999                                 com_err(program_name, EXT2_ET_REV_TOO_HIGH,
2000                                         _("while trying to create revision %d"), r_opt);
2001                                 exit(1);
2002                         }
2003                         fs_param.s_rev_level = r_opt;
2004                         break;
2005                 case 's':       /* deprecated */
2006                         s_opt = atoi(optarg);
2007                         break;
2008                 case 'S':
2009                         super_only = 1;
2010                         break;
2011                 case 't':
2012                         if (fs_type) {
2013                                 com_err(program_name, 0, "%s",
2014                                     _("The -t option may only be used once"));
2015                                 exit(1);
2016                         }
2017                         fs_type = strdup(optarg);
2018                         break;
2019                 case 'T':
2020                         if (usage_types) {
2021                                 com_err(program_name, 0, "%s",
2022                                     _("The -T option may only be used once"));
2023                                 exit(1);
2024                         }
2025                         usage_types = strdup(optarg);
2026                         break;
2027                 case 'U':
2028                         fs_uuid = optarg;
2029                         break;
2030                 case 'v':
2031                         verbose = 1;
2032                         break;
2033                 case 'V':
2034                         /* Print version number and exit */
2035                         show_version_only++;
2036                         break;
2037                 case 'z':
2038                         undo_file = optarg;
2039                         break;
2040                 default:
2041                         usage();
2042                 }
2043         }
2044         if ((optind == argc) && !show_version_only)
2045                 usage();
2046         device_name = argv[optind++];
2047
2048         if (!quiet || show_version_only)
2049                 fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION,
2050                          E2FSPROGS_DATE);
2051
2052         if (show_version_only) {
2053                 fprintf(stderr, _("\tUsing %s\n"),
2054                         error_message(EXT2_ET_BASE));
2055                 exit(0);
2056         }
2057
2058         /*
2059          * If there's no blocksize specified and there is a journal
2060          * device, use it to figure out the blocksize
2061          */
2062         if (blocksize <= 0 && journal_device) {
2063                 ext2_filsys     jfs;
2064                 io_manager      io_ptr;
2065
2066 #ifdef CONFIG_TESTIO_DEBUG
2067                 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
2068                         io_ptr = test_io_manager;
2069                         test_io_backing_manager = default_io_manager;
2070                 } else
2071 #endif
2072                         io_ptr = default_io_manager;
2073                 retval = ext2fs_open(journal_device,
2074                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
2075                                      0, io_ptr, &jfs);
2076                 if (retval) {
2077                         com_err(program_name, retval,
2078                                 _("while trying to open journal device %s\n"),
2079                                 journal_device);
2080                         exit(1);
2081                 }
2082                 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
2083                         com_err(program_name, 0,
2084                                 _("Journal dev blocksize (%d) smaller than "
2085                                   "minimum blocksize %d\n"), jfs->blocksize,
2086                                 -blocksize);
2087                         exit(1);
2088                 }
2089                 blocksize = jfs->blocksize;
2090                 printf(_("Using journal device's blocksize: %d\n"), blocksize);
2091                 fs_param.s_log_block_size =
2092                         int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
2093                 ext2fs_close_free(&jfs);
2094         }
2095
2096         if (optind < argc) {
2097                 fs_blocks_count = parse_num_blocks2(argv[optind++],
2098                                                    fs_param.s_log_block_size);
2099                 if (!fs_blocks_count) {
2100                         com_err(program_name, 0,
2101                                 _("invalid blocks '%s' on device '%s'"),
2102                                 argv[optind - 1], device_name);
2103                         exit(1);
2104                 }
2105         }
2106         if (optind < argc)
2107                 usage();
2108
2109         profile_get_integer(profile, "options", "sync_kludge", 0, 0,
2110                             &sync_kludge);
2111         tmp = getenv("MKE2FS_SYNC");
2112         if (tmp)
2113                 sync_kludge = atoi(tmp);
2114
2115         profile_get_integer(profile, "options", "proceed_delay", 0, 0,
2116                             &proceed_delay);
2117
2118         if (fs_blocks_count)
2119                 explicit_fssize = 1;
2120
2121         check_mount(device_name, force, _("filesystem"));
2122
2123         /* Determine the size of the device (if possible) */
2124         if (noaction && fs_blocks_count) {
2125                 dev_size = fs_blocks_count;
2126                 retval = 0;
2127         } else
2128                 retval = ext2fs_get_device_size2(device_name,
2129                                                  EXT2_BLOCK_SIZE(&fs_param),
2130                                                  &dev_size);
2131         if (retval == ENOENT) {
2132                 int fd;
2133
2134                 if (!explicit_fssize) {
2135                         fprintf(stderr,
2136                                 _("The file %s does not exist and no "
2137                                   "size was specified.\n"), device_name);
2138                         exit(1);
2139                 }
2140                 fd = ext2fs_open_file(device_name,
2141                                       O_CREAT | O_WRONLY, 0666);
2142                 if (fd < 0) {
2143                         retval = errno;
2144                 } else {
2145                         dev_size = 0;
2146                         retval = 0;
2147                         close(fd);
2148                         printf(_("Creating regular file %s\n"), device_name);
2149                 }
2150         }
2151         if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
2152                 com_err(program_name, retval, "%s",
2153                         _("while trying to determine filesystem size"));
2154                 exit(1);
2155         }
2156         if (!fs_blocks_count) {
2157                 if (retval == EXT2_ET_UNIMPLEMENTED) {
2158                         com_err(program_name, 0, "%s",
2159                                 _("Couldn't determine device size; you "
2160                                 "must specify\nthe size of the "
2161                                 "filesystem\n"));
2162                         exit(1);
2163                 } else {
2164                         if (dev_size == 0) {
2165                                 com_err(program_name, 0, "%s",
2166                                 _("Device size reported to be zero.  "
2167                                   "Invalid partition specified, or\n\t"
2168                                   "partition table wasn't reread "
2169                                   "after running fdisk, due to\n\t"
2170                                   "a modified partition being busy "
2171                                   "and in use.  You may need to reboot\n\t"
2172                                   "to re-read your partition table.\n"
2173                                   ));
2174                                 exit(1);
2175                         }
2176                         fs_blocks_count = dev_size;
2177                         if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param))
2178                                 fs_blocks_count &= ~((blk64_t) ((sys_page_size /
2179                                              EXT2_BLOCK_SIZE(&fs_param))-1));
2180                 }
2181         } else if (!force && is_device && (fs_blocks_count > dev_size)) {
2182                 com_err(program_name, 0, "%s",
2183                         _("Filesystem larger than apparent device size."));
2184                 proceed_question(proceed_delay);
2185         }
2186
2187         if (!fs_type)
2188                 profile_get_string(profile, "devices", device_name,
2189                                    "fs_type", 0, &fs_type);
2190         if (!usage_types)
2191                 profile_get_string(profile, "devices", device_name,
2192                                    "usage_types", 0, &usage_types);
2193         if (!creator_os)
2194                 profile_get_string(profile, "defaults", "creator_os", 0,
2195                                    0, &creator_os);
2196
2197         /*
2198          * We have the file system (or device) size, so we can now
2199          * determine the appropriate file system types so the fs can
2200          * be appropriately configured.
2201          */
2202         fs_types = parse_fs_type(fs_type, usage_types, &fs_param,
2203                                  fs_blocks_count, argv[0]);
2204         if (!fs_types) {
2205                 fprintf(stderr, "%s", _("Failed to parse fs types list\n"));
2206                 exit(1);
2207         }
2208
2209         /* Figure out what features should be enabled */
2210
2211         tmp = NULL;
2212         if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) {
2213                 tmp = get_string_from_profile(fs_types, "base_features",
2214                       "sparse_super,large_file,filetype,resize_inode,dir_index");
2215                 edit_feature(tmp, &fs_param.s_feature_compat);
2216                 free(tmp);
2217
2218                 /* And which mount options as well */
2219                 tmp = get_string_from_profile(fs_types, "default_mntopts",
2220                                               "acl,user_xattr");
2221                 edit_mntopts(tmp, &fs_param.s_default_mount_opts);
2222                 if (tmp)
2223                         free(tmp);
2224
2225                 for (cpp = fs_types; *cpp; cpp++) {
2226                         tmp = NULL;
2227                         profile_get_string(profile, "fs_types", *cpp,
2228                                            "features", "", &tmp);
2229                         if (tmp && *tmp)
2230                                 edit_feature(tmp, &fs_param.s_feature_compat);
2231                         if (tmp)
2232                                 free(tmp);
2233                 }
2234                 tmp = get_string_from_profile(fs_types, "default_features",
2235                                               "");
2236         }
2237         /* Mask off features which aren't supported by the Hurd */
2238         if (for_hurd(creator_os)) {
2239                 ext2fs_clear_feature_filetype(&fs_param);
2240                 ext2fs_clear_feature_huge_file(&fs_param);
2241                 ext2fs_clear_feature_metadata_csum(&fs_param);
2242                 ext2fs_clear_feature_ea_inode(&fs_param);
2243                 ext2fs_clear_feature_casefold(&fs_param);
2244         }
2245         if (!fs_features && tmp)
2246                 edit_feature(tmp, &fs_param.s_feature_compat);
2247         /*
2248          * Now all the defaults are incorporated in fs_param. Check the state
2249          * of orphan_file feature so that we know whether we should silently
2250          * disabled in case journal gets disabled.
2251          */
2252         if (ext2fs_has_feature_orphan_file(&fs_param))
2253                 default_orphan_file = 1;
2254         if (ext2fs_has_feature_csum_seed(&fs_param))
2255                 default_csum_seed = 1;
2256         if (fs_features)
2257                 edit_feature(fs_features, &fs_param.s_feature_compat);
2258         /* Silently disable orphan_file if user chose fs without journal */
2259         if (default_orphan_file && !ext2fs_has_feature_journal(&fs_param))
2260                 ext2fs_clear_feature_orphan_file(&fs_param);
2261         if (default_csum_seed && !ext2fs_has_feature_metadata_csum(&fs_param))
2262                 ext2fs_clear_feature_csum_seed(&fs_param);
2263         if (tmp)
2264                 free(tmp);
2265         (void) ext2fs_free_mem(&fs_features);
2266         /*
2267          * If the user specified features incompatible with the Hurd, complain
2268          */
2269         if (for_hurd(creator_os)) {
2270                 if (ext2fs_has_feature_filetype(&fs_param)) {
2271                         fprintf(stderr, "%s", _("The HURD does not support the "
2272                                                 "filetype feature.\n"));
2273                         exit(1);
2274                 }
2275                 if (ext2fs_has_feature_huge_file(&fs_param)) {
2276                         fprintf(stderr, "%s", _("The HURD does not support the "
2277                                                 "huge_file feature.\n"));
2278                         exit(1);
2279                 }
2280                 if (ext2fs_has_feature_metadata_csum(&fs_param)) {
2281                         fprintf(stderr, "%s", _("The HURD does not support the "
2282                                                 "metadata_csum feature.\n"));
2283                         exit(1);
2284                 }
2285                 if (ext2fs_has_feature_ea_inode(&fs_param)) {
2286                         fprintf(stderr, "%s", _("The HURD does not support the "
2287                                                 "ea_inode feature.\n"));
2288                         exit(1);
2289                 }
2290         }
2291
2292         /* Get the hardware sector sizes, if available */
2293         retval = ext2fs_get_device_sectsize(device_name, &lsector_size);
2294         if (retval) {
2295                 com_err(program_name, retval, "%s",
2296                         _("while trying to determine hardware sector size"));
2297                 exit(1);
2298         }
2299         retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size);
2300         if (retval) {
2301                 com_err(program_name, retval, "%s",
2302                         _("while trying to determine physical sector size"));
2303                 exit(1);
2304         }
2305
2306         tmp = getenv("MKE2FS_DEVICE_SECTSIZE");
2307         if (tmp != NULL)
2308                 lsector_size = atoi(tmp);
2309         tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE");
2310         if (tmp != NULL)
2311                 psector_size = atoi(tmp);
2312
2313         /* Older kernels may not have physical/logical distinction */
2314         if (!psector_size)
2315                 psector_size = lsector_size;
2316
2317         if (blocksize <= 0) {
2318                 use_bsize = get_int_from_profile(fs_types, "blocksize", 4096);
2319
2320                 if (use_bsize == -1) {
2321                         use_bsize = sys_page_size;
2322                         if (ext2fs_is_before_linux_ver(2, 6, 0) &&
2323                             use_bsize > 4096)
2324                                 use_bsize = 4096;
2325                 }
2326                 if (lsector_size && use_bsize < lsector_size)
2327                         use_bsize = lsector_size;
2328                 if ((blocksize < 0) && (use_bsize < (-blocksize)))
2329                         use_bsize = -blocksize;
2330                 blocksize = use_bsize;
2331                 fs_blocks_count /= (blocksize / 1024);
2332         } else {
2333                 if (blocksize < lsector_size) {                 /* Impossible */
2334                         com_err(program_name, EINVAL, "%s",
2335                                 _("while setting blocksize; too small "
2336                                   "for device\n"));
2337                         exit(1);
2338                 } else if ((blocksize < psector_size) &&
2339                            (psector_size <= sys_page_size)) {   /* Suboptimal */
2340                         fprintf(stderr, _("Warning: specified blocksize %d is "
2341                                 "less than device physical sectorsize %d\n"),
2342                                 blocksize, psector_size);
2343                 }
2344         }
2345
2346         fs_param.s_log_block_size =
2347                 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
2348
2349         /*
2350          * We now need to do a sanity check of fs_blocks_count for
2351          * 32-bit vs 64-bit block number support.
2352          */
2353         if (fs_blocks_count > MAX_32_NUM) {
2354                 if (!ext2fs_has_feature_64bit(&fs_param) &&
2355                     get_bool_from_profile(fs_types, "auto_64-bit_support", 0))
2356                         ext2fs_set_feature_64bit(&fs_param);
2357
2358                 if (ext2fs_has_feature_64bit(&fs_param)) {
2359                         ext2fs_clear_feature_resize_inode(&fs_param);
2360                 } else {
2361                         fprintf(stderr,
2362                                 _("%s: Size of device (0x%llx blocks) %s "
2363                                   "too big to be expressed\n\t"
2364                                   "in 32 bits using a blocksize of %d.\n"),
2365                                 program_name,
2366                                 (unsigned long long) fs_blocks_count,
2367                                 device_name, EXT2_BLOCK_SIZE(&fs_param));
2368                         exit(1);
2369                 }
2370         }
2371
2372         /*
2373          * Guard against group descriptor count overflowing... Mostly to avoid
2374          * strange results for absurdly large devices.  This is in log2:
2375          * (blocksize) * (bits per byte) * (maximum number of block groups)
2376          */
2377         if (fs_blocks_count >
2378             (1ULL << (EXT2_BLOCK_SIZE_BITS(&fs_param) + 3 + 32)) - 1) {
2379                 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2380                                   "too big to create\n\t"
2381                                   "a filesystem using a blocksize of %d.\n"),
2382                         program_name, (unsigned long long) fs_blocks_count,
2383                         device_name, EXT2_BLOCK_SIZE(&fs_param));
2384                 exit(1);
2385         }
2386
2387         ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2388
2389         if (ext2fs_has_feature_journal_dev(&fs_param)) {
2390                 int i;
2391
2392                 for (i=0; fs_types[i]; i++) {
2393                         free(fs_types[i]);
2394                         fs_types[i] = 0;
2395                 }
2396                 fs_types[0] = strdup("journal");
2397                 fs_types[1] = 0;
2398         }
2399
2400         if (verbose) {
2401                 fputs(_("fs_types for mke2fs.conf resolution: "), stdout);
2402                 print_str_list(fs_types);
2403         }
2404
2405         if (r_opt == EXT2_GOOD_OLD_REV &&
2406             (fs_param.s_feature_compat || fs_param.s_feature_incompat ||
2407              fs_param.s_feature_ro_compat)) {
2408                 fprintf(stderr, "%s", _("Filesystem features not supported "
2409                                         "with revision 0 filesystems\n"));
2410                 exit(1);
2411         }
2412
2413         if (s_opt > 0) {
2414                 if (r_opt == EXT2_GOOD_OLD_REV) {
2415                         fprintf(stderr, "%s",
2416                                 _("Sparse superblocks not supported "
2417                                   "with revision 0 filesystems\n"));
2418                         exit(1);
2419                 }
2420                 ext2fs_set_feature_sparse_super(&fs_param);
2421         } else if (s_opt == 0)
2422                 ext2fs_clear_feature_sparse_super(&fs_param);
2423
2424         if (journal_size != 0) {
2425                 if (r_opt == EXT2_GOOD_OLD_REV) {
2426                         fprintf(stderr, "%s", _("Journals not supported with "
2427                                                 "revision 0 filesystems\n"));
2428                         exit(1);
2429                 }
2430                 ext2fs_set_feature_journal(&fs_param);
2431         }
2432
2433         /* Get reserved_ratio from profile if not specified on cmd line. */
2434         if (reserved_ratio < 0.0) {
2435                 reserved_ratio = get_double_from_profile(
2436                                         fs_types, "reserved_ratio", 5.0);
2437                 if (reserved_ratio > 50 || reserved_ratio < 0) {
2438                         com_err(program_name, 0,
2439                                 _("invalid reserved blocks percent - %lf"),
2440                                 reserved_ratio);
2441                         exit(1);
2442                 }
2443         }
2444
2445         if (ext2fs_has_feature_journal_dev(&fs_param)) {
2446                 reserved_ratio = 0;
2447                 fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
2448                 fs_param.s_feature_compat = 0;
2449                 fs_param.s_feature_ro_compat &=
2450                                         EXT4_FEATURE_RO_COMPAT_METADATA_CSUM;
2451         }
2452
2453         /* Check the user's mkfs options for 64bit */
2454         if (fs_blocks_count > MAX_32_NUM &&
2455             !ext2fs_has_feature_extents(&fs_param)) {
2456                 printf("%s", _("Extents MUST be enabled for filesystems with "
2457                                "over 2^32 blocks. Use '-O extents' to fix.\n"));
2458                 exit(1);
2459         }
2460
2461         /* Set first meta blockgroup via an environment variable */
2462         /* (this is mostly for debugging purposes) */
2463         if (ext2fs_has_feature_meta_bg(&fs_param) &&
2464             (tmp = getenv("MKE2FS_FIRST_META_BG")))
2465                 fs_param.s_first_meta_bg = atoi(tmp);
2466         if (ext2fs_has_feature_bigalloc(&fs_param)) {
2467                 if (!cluster_size)
2468                         cluster_size = get_int_from_profile(fs_types,
2469                                                             "cluster_size",
2470                                                             blocksize*16);
2471                 fs_param.s_log_cluster_size =
2472                         int_log2(cluster_size >> EXT2_MIN_CLUSTER_LOG_SIZE);
2473                 if (fs_param.s_log_cluster_size &&
2474                     fs_param.s_log_cluster_size < fs_param.s_log_block_size) {
2475                         com_err(program_name, 0, "%s",
2476                                 _("The cluster size may not be "
2477                                   "smaller than the block size.\n"));
2478                         exit(1);
2479                 }
2480         } else if (cluster_size) {
2481                 com_err(program_name, 0, "%s",
2482                         _("specifying a cluster size requires the "
2483                           "bigalloc feature"));
2484                 exit(1);
2485         } else
2486                 fs_param.s_log_cluster_size = fs_param.s_log_block_size;
2487
2488         if (inode_ratio == 0) {
2489                 inode_ratio = get_int_from_profile(fs_types, "inode_ratio",
2490                                                    8192);
2491                 if (inode_ratio < blocksize)
2492                         inode_ratio = blocksize;
2493                 if (inode_ratio < EXT2_CLUSTER_SIZE(&fs_param))
2494                         inode_ratio = EXT2_CLUSTER_SIZE(&fs_param);
2495         }
2496
2497 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
2498         retval = get_device_geometry(device_name, blocksize,
2499                                      psector_size, &dev_param);
2500         if (retval < 0) {
2501                 fprintf(stderr,
2502                         _("warning: Unable to get device geometry for %s\n"),
2503                         device_name);
2504         } else {
2505                 /* setting stripe/stride to blocksize is pointless */
2506                 if (dev_param.min_io > (unsigned) blocksize)
2507                         fs_param.s_raid_stride = dev_param.min_io / blocksize;
2508                 if (dev_param.opt_io > (unsigned) blocksize) {
2509                         fs_param.s_raid_stripe_width =
2510                                                 dev_param.opt_io / blocksize;
2511                 }
2512
2513                 if (dev_param.alignment_offset) {
2514                         printf(_("%s alignment is offset by %lu bytes.\n"),
2515                                device_name, dev_param.alignment_offset);
2516                         printf(_("This may result in very poor performance, "
2517                                   "(re)-partitioning suggested.\n"));
2518                 }
2519
2520                 if (dev_param.dax && blocksize != sys_page_size) {
2521                         fprintf(stderr,
2522                                 _("%s is capable of DAX but current block size "
2523                                   "%u is different from system page size %u so "
2524                                   "filesystem will not support DAX.\n"),
2525                                 device_name, blocksize, sys_page_size);
2526                 }
2527         }
2528 #endif
2529
2530         num_backups = get_int_from_profile(fs_types, "num_backup_sb", 2);
2531
2532         blocksize = EXT2_BLOCK_SIZE(&fs_param);
2533
2534         /*
2535          * Initialize s_desc_size so that the parse_extended_opts()
2536          * can correctly handle "-E resize=NNN" if the 64-bit option
2537          * is set.
2538          */
2539         if (ext2fs_has_feature_64bit(&fs_param))
2540                 fs_param.s_desc_size = EXT2_MIN_DESC_SIZE_64BIT;
2541
2542         /* This check should happen beyond the last assignment to blocksize */
2543         if (blocksize > sys_page_size) {
2544                 if (!force) {
2545                         com_err(program_name, 0,
2546                                 _("%d-byte blocks too big for system (max %d)"),
2547                                 blocksize, sys_page_size);
2548                         proceed_question(proceed_delay);
2549                 }
2550                 fprintf(stderr, _("Warning: %d-byte blocks too big for system "
2551                                   "(max %d), forced to continue\n"),
2552                         blocksize, sys_page_size);
2553         }
2554
2555         /* Metadata checksumming wasn't totally stable before 3.18. */
2556         if (ext2fs_is_before_linux_ver(3, 18, 0) &&
2557             ext2fs_has_feature_metadata_csum(&fs_param))
2558                 fprintf(stderr, _("Suggestion: Use Linux kernel >= 3.18 for "
2559                         "improved stability of the metadata and journal "
2560                         "checksum features.\n"));
2561
2562         /*
2563          * On newer kernels we do have lazy_itable_init support. So pick the
2564          * right default in case ext4 module is not loaded.
2565          */
2566         if (ext2fs_is_before_linux_ver(2, 6, 37))
2567                 lazy_itable_init = 0;
2568         else
2569                 lazy_itable_init = 1;
2570
2571         if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0)
2572                 lazy_itable_init = 1;
2573
2574         lazy_itable_init = get_bool_from_profile(fs_types,
2575                                                  "lazy_itable_init",
2576                                                  lazy_itable_init);
2577         discard = get_bool_from_profile(fs_types, "discard" , discard);
2578         journal_flags |= get_bool_from_profile(fs_types,
2579                                                "lazy_journal_init", 0) ?
2580                                                EXT2_MKJOURNAL_LAZYINIT : 0;
2581         journal_flags |= EXT2_MKJOURNAL_NO_MNT_CHECK;
2582
2583         if (!journal_location_string)
2584                 journal_location_string = get_string_from_profile(fs_types,
2585                                                 "journal_location", "");
2586         if ((journal_location == ~0ULL) && journal_location_string &&
2587             *journal_location_string)
2588                 journal_location = parse_num_blocks2(journal_location_string,
2589                                                 fs_param.s_log_block_size);
2590         free(journal_location_string);
2591
2592         packed_meta_blocks = get_bool_from_profile(fs_types,
2593                                                    "packed_meta_blocks", 0);
2594         if (packed_meta_blocks)
2595                 journal_location = 0;
2596
2597         if (ext2fs_has_feature_casefold(&fs_param)) {
2598                 char *ef, *en = get_string_from_profile(fs_types,
2599                                                         "encoding", "utf8");
2600                 int encoding = e2p_str2encoding(en);
2601
2602                 if (encoding < 0) {
2603                         com_err(program_name, 0,
2604                                 _("Unknown filename encoding from profile: %s"),
2605                                 en);
2606                         exit(1);
2607                 }
2608                 free(en);
2609                 fs_param.s_encoding = encoding;
2610                 ef = get_string_from_profile(fs_types, "encoding_flags", NULL);
2611                 if (ef) {
2612                         if (e2p_str2encoding_flags(encoding, ef,
2613                                         &fs_param.s_encoding_flags) < 0) {
2614                                 com_err(program_name, 0,
2615                         _("Unknown encoding flags from profile: %s"), ef);
2616                                 exit(1);
2617                         }
2618                         free(ef);
2619                 } else
2620                         fs_param.s_encoding_flags =
2621                                 e2p_get_encoding_flags(encoding);
2622         }
2623
2624         /* Get options from profile */
2625         for (cpp = fs_types; *cpp; cpp++) {
2626                 tmp = NULL;
2627                 profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp);
2628                         if (tmp && *tmp)
2629                                 parse_extended_opts(&fs_param, tmp);
2630                         free(tmp);
2631         }
2632
2633         if (extended_opts)
2634                 parse_extended_opts(&fs_param, extended_opts);
2635
2636         if (explicit_fssize == 0 && offset > 0) {
2637                 fs_blocks_count -= offset / EXT2_BLOCK_SIZE(&fs_param);
2638                 ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2639                 fprintf(stderr,
2640                         _("\nWarning: offset specified without an "
2641                           "explicit file system size.\n"
2642                           "Creating a file system with %llu blocks "
2643                           "but this might\n"
2644                           "not be what you want.\n\n"),
2645                         (unsigned long long) fs_blocks_count);
2646         }
2647
2648         if (quotatype_bits & QUOTA_PRJ_BIT)
2649                 ext2fs_set_feature_project(&fs_param);
2650
2651         if (ext2fs_has_feature_project(&fs_param)) {
2652                 quotatype_bits |= QUOTA_PRJ_BIT;
2653                 if (inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2654                         com_err(program_name, 0,
2655                                 _("%d byte inodes are too small for "
2656                                   "project quota"),
2657                                 inode_size);
2658                         exit(1);
2659                 }
2660                 if (inode_size == 0) {
2661                         inode_size = get_int_from_profile(fs_types,
2662                                                           "inode_size", 0);
2663                         if (inode_size <= EXT2_GOOD_OLD_INODE_SIZE*2)
2664                                 inode_size = EXT2_GOOD_OLD_INODE_SIZE*2;
2665                 }
2666         }
2667
2668         /* Don't allow user to set both metadata_csum and uninit_bg bits. */
2669         if (ext2fs_has_feature_metadata_csum(&fs_param) &&
2670             ext2fs_has_feature_gdt_csum(&fs_param))
2671                 ext2fs_clear_feature_gdt_csum(&fs_param);
2672
2673         /* Can't support bigalloc feature without extents feature */
2674         if (ext2fs_has_feature_bigalloc(&fs_param) &&
2675             !ext2fs_has_feature_extents(&fs_param)) {
2676                 com_err(program_name, 0, "%s",
2677                         _("Can't support bigalloc feature without "
2678                           "extents feature"));
2679                 exit(1);
2680         }
2681
2682         if (ext2fs_has_feature_meta_bg(&fs_param) &&
2683             ext2fs_has_feature_resize_inode(&fs_param)) {
2684                 fprintf(stderr, "%s", _("The resize_inode and meta_bg "
2685                                         "features are not compatible.\n"
2686                                         "They can not be both enabled "
2687                                         "simultaneously.\n"));
2688                 exit(1);
2689         }
2690
2691         if (!quiet && ext2fs_has_feature_bigalloc(&fs_param) &&
2692             EXT2_CLUSTER_SIZE(&fs_param) > 16 * EXT2_BLOCK_SIZE(&fs_param))
2693                 fprintf(stderr, "%s", _("\nWarning: bigalloc file systems "
2694                                 "with a cluster size greater than\n"
2695                                 "16 times the block size is considered "
2696                                 "experimental\n"));
2697
2698         /*
2699          * Since sparse_super is the default, we would only have a problem
2700          * here if it was explicitly disabled.
2701          */
2702         if (ext2fs_has_feature_resize_inode(&fs_param) &&
2703             !ext2fs_has_feature_sparse_super(&fs_param)) {
2704                 com_err(program_name, 0, "%s",
2705                         _("reserved online resize blocks not supported "
2706                           "on non-sparse filesystem"));
2707                 exit(1);
2708         }
2709
2710         if (fs_param.s_blocks_per_group) {
2711                 if (fs_param.s_blocks_per_group < 256 ||
2712                     fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) {
2713                         com_err(program_name, 0, "%s",
2714                                 _("blocks per group count out of range"));
2715                         exit(1);
2716                 }
2717         }
2718
2719         /*
2720          * If the bigalloc feature is enabled, then the -g option will
2721          * specify the number of clusters per group.
2722          */
2723         if (ext2fs_has_feature_bigalloc(&fs_param)) {
2724                 fs_param.s_clusters_per_group = fs_param.s_blocks_per_group;
2725                 fs_param.s_blocks_per_group = 0;
2726         }
2727
2728         if (inode_size == 0)
2729                 inode_size = get_int_from_profile(fs_types, "inode_size", 0);
2730         if (!flex_bg_size && ext2fs_has_feature_flex_bg(&fs_param))
2731                 flex_bg_size = get_uint_from_profile(fs_types,
2732                                                      "flex_bg_size", 16);
2733         if (flex_bg_size) {
2734                 if (!ext2fs_has_feature_flex_bg(&fs_param)) {
2735                         com_err(program_name, 0, "%s",
2736                                 _("Flex_bg feature not enabled, so "
2737                                   "flex_bg size may not be specified"));
2738                         exit(1);
2739                 }
2740                 fs_param.s_log_groups_per_flex = int_log2(flex_bg_size);
2741         }
2742
2743         if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) {
2744                 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
2745                     inode_size > EXT2_BLOCK_SIZE(&fs_param) ||
2746                     inode_size & (inode_size - 1)) {
2747                         com_err(program_name, 0,
2748                                 _("invalid inode size %d (min %d/max %d)"),
2749                                 inode_size, EXT2_GOOD_OLD_INODE_SIZE,
2750                                 blocksize);
2751                         exit(1);
2752                 }
2753                 fs_param.s_inode_size = inode_size;
2754         }
2755
2756         /*
2757          * If inode size is 128 and inline data is enabled, we need
2758          * to notify users that inline data will never be useful.
2759          */
2760         if (ext2fs_has_feature_inline_data(&fs_param) &&
2761             fs_param.s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2762                 com_err(program_name, 0,
2763                         _("%d byte inodes are too small for inline data; "
2764                           "specify larger size"),
2765                         fs_param.s_inode_size);
2766                 exit(1);
2767         }
2768
2769         /*
2770          * Warn the user that filesystems with 128-byte inodes will
2771          * not work properly beyond 2038.  This can be suppressed via
2772          * a boolean in the mke2fs.conf file, and we will disable this
2773          * warning for file systems created for the GNU Hurd.
2774          */
2775         if (inode_size == EXT2_GOOD_OLD_INODE_SIZE &&
2776             get_bool_from_profile(fs_types, "warn_y2038_dates", 1))
2777                 printf(
2778 _("128-byte inodes cannot handle dates beyond 2038 and are deprecated\n"));
2779
2780         /* Make sure number of inodes specified will fit in 32 bits */
2781         if (num_inodes == 0) {
2782                 unsigned long long n;
2783                 n = ext2fs_blocks_count(&fs_param) * blocksize / inode_ratio;
2784                 if (n > MAX_32_NUM) {
2785                         num_inodes = MAX_32_NUM;
2786                         if (!ext2fs_has_feature_64bit(&fs_param))
2787                                 com_err(program_name, 0,
2788                                         _("too many inodes (%llu), reduced to "
2789                                           "%llu"), n, MAX_32_NUM);
2790                 }
2791         } else if (num_inodes > MAX_32_NUM) {
2792                 com_err(program_name, 0,
2793                         _("too many inodes (%llu), specify < 2^32 inodes"),
2794                         (unsigned long long) num_inodes);
2795                 exit(1);
2796         }
2797         /*
2798          * Calculate number of inodes based on the inode ratio
2799          */
2800         fs_param.s_inodes_count = num_inodes ? num_inodes :
2801                 (ext2fs_blocks_count(&fs_param) * blocksize) / inode_ratio;
2802
2803         if ((((unsigned long long)fs_param.s_inodes_count) *
2804              (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >=
2805             ((ext2fs_blocks_count(&fs_param)) *
2806              EXT2_BLOCK_SIZE(&fs_param))) {
2807                 com_err(program_name, 0, _("inode_size (%u) * inodes_count "
2808                                           "(%u) too big for a\n\t"
2809                                           "filesystem with %llu blocks, "
2810                                           "specify higher inode_ratio (-i)\n\t"
2811                                           "or lower inode count (-N).\n"),
2812                         inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE,
2813                         fs_param.s_inodes_count,
2814                         (unsigned long long) ext2fs_blocks_count(&fs_param));
2815                 exit(1);
2816         }
2817
2818         /*
2819          * Calculate number of blocks to reserve
2820          */
2821         ext2fs_r_blocks_count_set(&fs_param, reserved_ratio *
2822                                   ext2fs_blocks_count(&fs_param) / 100.0);
2823
2824         if (ext2fs_has_feature_sparse_super2(&fs_param)) {
2825                 if (num_backups >= 1)
2826                         fs_param.s_backup_bgs[0] = 1;
2827                 if (num_backups >= 2)
2828                         fs_param.s_backup_bgs[1] = ~0;
2829         }
2830
2831         free(fs_type);
2832         free(usage_types);
2833
2834         /* The isatty() test is so we don't break existing scripts */
2835         flags = CREATE_FILE;
2836         if (isatty(0) && isatty(1) && !offset)
2837                 flags |= CHECK_FS_EXIST;
2838         if (!quiet)
2839                 flags |= VERBOSE_CREATE;
2840         if (!explicit_fssize)
2841                 flags |= NO_SIZE;
2842         if (!check_plausibility(device_name, flags, &is_device) && !force)
2843                 proceed_question(proceed_delay);
2844 }
2845
2846 static int should_do_undo(const char *name)
2847 {
2848         errcode_t retval;
2849         io_channel channel;
2850         __u16   s_magic;
2851         struct ext2_super_block super;
2852         io_manager manager = default_io_manager;
2853         int csum_flag, force_undo;
2854
2855         csum_flag = ext2fs_has_feature_metadata_csum(&fs_param) ||
2856                     ext2fs_has_feature_gdt_csum(&fs_param);
2857         force_undo = get_int_from_profile(fs_types, "force_undo", 0);
2858         if (!force_undo && (!csum_flag || !lazy_itable_init))
2859                 return 0;
2860
2861         retval = manager->open(name, IO_FLAG_EXCLUSIVE,  &channel);
2862         if (retval) {
2863                 /*
2864                  * We don't handle error cases instead we
2865                  * declare that the file system doesn't exist
2866                  * and let the rest of mke2fs take care of
2867                  * error
2868                  */
2869                 retval = 0;
2870                 goto open_err_out;
2871         }
2872
2873         io_channel_set_blksize(channel, SUPERBLOCK_OFFSET);
2874         retval = io_channel_read_blk64(channel, 1, -SUPERBLOCK_SIZE, &super);
2875         if (retval) {
2876                 retval = 0;
2877                 goto err_out;
2878         }
2879
2880 #if defined(WORDS_BIGENDIAN)
2881         s_magic = ext2fs_swab16(super.s_magic);
2882 #else
2883         s_magic = super.s_magic;
2884 #endif
2885
2886         if (s_magic == EXT2_SUPER_MAGIC)
2887                 retval = 1;
2888
2889 err_out:
2890         io_channel_close(channel);
2891
2892 open_err_out:
2893
2894         return retval;
2895 }
2896
2897 static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr)
2898 {
2899         errcode_t retval = ENOMEM;
2900         char *tdb_dir = NULL, *tdb_file = NULL;
2901         char *dev_name, *tmp_name;
2902         int free_tdb_dir = 0;
2903
2904         /* (re)open a specific undo file */
2905         if (undo_file && undo_file[0] != 0) {
2906                 retval = set_undo_io_backing_manager(*io_ptr);
2907                 if (retval)
2908                         goto err;
2909                 *io_ptr = undo_io_manager;
2910                 retval = set_undo_io_backup_file(undo_file);
2911                 if (retval)
2912                         goto err;
2913                 printf(_("Overwriting existing filesystem; this can be undone "
2914                          "using the command:\n"
2915                          "    e2undo %s %s\n\n"), undo_file, name);
2916                 return retval;
2917         }
2918
2919         /*
2920          * Configuration via a conf file would be
2921          * nice
2922          */
2923         tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
2924         if (!tdb_dir) {
2925                 profile_get_string(profile, "defaults",
2926                                    "undo_dir", 0, "/var/lib/e2fsprogs",
2927                                    &tdb_dir);
2928                 free_tdb_dir = 1;
2929         }
2930
2931         if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
2932             access(tdb_dir, W_OK)) {
2933                 if (free_tdb_dir)
2934                         free(tdb_dir);
2935                 return 0;
2936         }
2937
2938         tmp_name = strdup(name);
2939         if (!tmp_name)
2940                 goto errout;
2941         dev_name = basename(tmp_name);
2942         tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
2943         if (!tdb_file) {
2944                 free(tmp_name);
2945                 goto errout;
2946         }
2947         sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, dev_name);
2948         free(tmp_name);
2949
2950         if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
2951                 retval = errno;
2952                 com_err(program_name, retval,
2953                         _("while trying to delete %s"), tdb_file);
2954                 goto errout;
2955         }
2956
2957         retval = set_undo_io_backing_manager(*io_ptr);
2958         if (retval)
2959                 goto errout;
2960         *io_ptr = undo_io_manager;
2961         retval = set_undo_io_backup_file(tdb_file);
2962         if (retval)
2963                 goto errout;
2964         printf(_("Overwriting existing filesystem; this can be undone "
2965                  "using the command:\n"
2966                  "    e2undo %s %s\n\n"), tdb_file, name);
2967
2968         if (free_tdb_dir)
2969                 free(tdb_dir);
2970         free(tdb_file);
2971         return 0;
2972
2973 errout:
2974         if (free_tdb_dir)
2975                 free(tdb_dir);
2976         free(tdb_file);
2977 err:
2978         com_err(program_name, retval, "%s",
2979                 _("while trying to setup undo file\n"));
2980         return retval;
2981 }
2982
2983 static int mke2fs_discard_device(ext2_filsys fs)
2984 {
2985         struct ext2fs_numeric_progress_struct progress;
2986         dgrp_t group;
2987         int retval = 0;
2988
2989         /*
2990          * Let's try if discard really works on the device, so
2991          * we do not print numeric progress resulting in failure
2992          * afterwards.
2993          */
2994         retval = io_channel_discard(fs->io, 0, 1);
2995         if (retval)
2996                 return retval;
2997
2998         ext2fs_numeric_progress_init(fs, &progress,
2999                                      _("Discarding device blocks: "),
3000                                      ext2fs_blocks_count(fs->super));
3001
3002         for (group = 0; group < fs->group_desc_count; group++) {
3003                 blk64_t start = ext2fs_group_first_block2(fs, group);
3004                 blk64_t count = ext2fs_group_blocks_count(fs, group);
3005                 int retval_discard = 0;
3006
3007                 retval_discard = io_channel_discard(fs->io, start, count);
3008                 if (!retval_discard) {
3009                         ext2fs_bg_flags_set(fs, group, EXT2_BG_TRIMMED);
3010                         ext2fs_group_desc_csum_set(fs, group);
3011                         fs->super->s_flags |= EXT2_FLAGS_TRACK_TRIM;
3012                 } else if (!retval) {
3013                         retval = retval_discard;
3014                 }
3015
3016                 ext2fs_numeric_progress_update(fs, &progress,
3017                                         ext2fs_group_last_block2(fs, group));
3018         }
3019
3020         if (retval) {
3021                 ext2fs_numeric_progress_close(fs, &progress,
3022                                       _("failed - "));
3023                 if (!quiet)
3024                         printf("%s\n",error_message(retval));
3025         } else
3026                 ext2fs_numeric_progress_close(fs, &progress,
3027                                       _("done                            \n"));
3028
3029         return retval;
3030 }
3031
3032 static void fix_cluster_bg_counts(ext2_filsys fs)
3033 {
3034         blk64_t         block, num_blocks, last_block, next;
3035         blk64_t         tot_free = 0;
3036         errcode_t       retval;
3037         dgrp_t          group = 0;
3038         int             grp_free = 0;
3039
3040         num_blocks = ext2fs_blocks_count(fs->super);
3041         last_block = ext2fs_group_last_block2(fs, group);
3042         block = fs->super->s_first_data_block;
3043         while (block < num_blocks) {
3044                 retval = ext2fs_find_first_zero_block_bitmap2(fs->block_map,
3045                                                 block, last_block, &next);
3046                 if (retval == 0)
3047                         block = next;
3048                 else {
3049                         block = last_block + 1;
3050                         goto next_bg;
3051                 }
3052
3053                 retval = ext2fs_find_first_set_block_bitmap2(fs->block_map,
3054                                                 block, last_block, &next);
3055                 if (retval)
3056                         next = last_block + 1;
3057                 grp_free += EXT2FS_NUM_B2C(fs, next - block);
3058                 tot_free += next - block;
3059                 block = next;
3060
3061                 if (block > last_block) {
3062                 next_bg:
3063                         ext2fs_bg_free_blocks_count_set(fs, group, grp_free);
3064                         ext2fs_group_desc_csum_set(fs, group);
3065                         grp_free = 0;
3066                         group++;
3067                         last_block = ext2fs_group_last_block2(fs, group);
3068                 }
3069         }
3070         ext2fs_free_blocks_count_set(fs->super, tot_free);
3071 }
3072
3073 static int create_quota_inodes(ext2_filsys fs)
3074 {
3075         quota_ctx_t qctx;
3076         errcode_t retval;
3077
3078         retval = quota_init_context(&qctx, fs, quotatype_bits);
3079         if (retval) {
3080                 com_err(program_name, retval,
3081                         _("while initializing quota context"));
3082                 exit(1);
3083         }
3084         quota_compute_usage(qctx);
3085         retval = quota_write_inode(qctx, quotatype_bits);
3086         if (retval) {
3087                 com_err(program_name, retval,
3088                         _("while writing quota inodes"));
3089                 exit(1);
3090         }
3091         quota_release_context(&qctx);
3092
3093         return 0;
3094 }
3095
3096 static errcode_t set_error_behavior(ext2_filsys fs)
3097 {
3098         char    *arg = NULL;
3099         short   errors = fs->super->s_errors;
3100
3101         arg = get_string_from_profile(fs_types, "errors", NULL);
3102         if (arg == NULL)
3103                 goto try_user;
3104
3105         if (strcmp(arg, "continue") == 0)
3106                 errors = EXT2_ERRORS_CONTINUE;
3107         else if (strcmp(arg, "remount-ro") == 0)
3108                 errors = EXT2_ERRORS_RO;
3109         else if (strcmp(arg, "panic") == 0)
3110                 errors = EXT2_ERRORS_PANIC;
3111         else {
3112                 com_err(program_name, 0,
3113                         _("bad error behavior in profile - %s"),
3114                         arg);
3115                 free(arg);
3116                 return EXT2_ET_INVALID_ARGUMENT;
3117         }
3118         free(arg);
3119
3120 try_user:
3121         if (errors_behavior)
3122                 errors = errors_behavior;
3123
3124         fs->super->s_errors = errors;
3125         return 0;
3126 }
3127
3128 int main (int argc, char *argv[])
3129 {
3130         errcode_t       retval = 0;
3131         ext2_filsys     fs;
3132         badblocks_list  bb_list = 0;
3133         badblocks_iterate       bb_iter;
3134         blk_t           blk;
3135         struct ext2fs_journal_params    jparams = {0};
3136         unsigned int    i, checkinterval;
3137         int             max_mnt_count;
3138         int             val, hash_alg;
3139         int             flags;
3140         int             old_bitmaps;
3141         io_manager      io_ptr;
3142         char            opt_string[40];
3143         char            *hash_alg_str;
3144         int             itable_zeroed = 0;
3145         blk64_t         overhead;
3146
3147 #ifdef ENABLE_NLS
3148         setlocale(LC_MESSAGES, "");
3149         setlocale(LC_CTYPE, "");
3150         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
3151         textdomain(NLS_CAT_NAME);
3152         set_com_err_gettext(gettext);
3153 #endif
3154         PRS(argc, argv);
3155
3156 #ifdef CONFIG_TESTIO_DEBUG
3157         if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
3158                 io_ptr = test_io_manager;
3159                 test_io_backing_manager = default_io_manager;
3160         } else
3161 #endif
3162                 io_ptr = default_io_manager;
3163
3164         if (undo_file != NULL || should_do_undo(device_name)) {
3165                 retval = mke2fs_setup_tdb(device_name, &io_ptr);
3166                 if (retval)
3167                         exit(1);
3168         }
3169
3170         /*
3171          * Initialize the superblock....
3172          */
3173         flags = EXT2_FLAG_EXCLUSIVE;
3174         if (direct_io)
3175                 flags |= EXT2_FLAG_DIRECT_IO;
3176         profile_get_boolean(profile, "options", "old_bitmaps", 0, 0,
3177                             &old_bitmaps);
3178         if (!old_bitmaps)
3179                 flags |= EXT2_FLAG_64BITS;
3180         /*
3181          * By default, we print how many inode tables or block groups
3182          * or whatever we've written so far.  The quiet flag disables
3183          * this, along with a lot of other output.
3184          */
3185         if (!quiet)
3186                 flags |= EXT2_FLAG_PRINT_PROGRESS;
3187         if (android_sparse_file) {
3188                 char *android_sparse_params = malloc(strlen(device_name) + 48);
3189
3190                 if (!android_sparse_params) {
3191                         com_err(program_name, ENOMEM, "%s",
3192                                 _("in malloc for android_sparse_params"));
3193                         exit(1);
3194                 }
3195                 sprintf(android_sparse_params, "(%s):%u:%u",
3196                          device_name, fs_param.s_blocks_count,
3197                          1024 << fs_param.s_log_block_size);
3198                 retval = ext2fs_initialize(android_sparse_params, flags,
3199                                            &fs_param, sparse_io_manager, &fs);
3200                 free(android_sparse_params);
3201         } else
3202                 retval = ext2fs_initialize(device_name, flags, &fs_param,
3203                                            io_ptr, &fs);
3204         if (retval) {
3205                 com_err(device_name, retval, "%s",
3206                         _("while setting up superblock"));
3207                 exit(1);
3208         }
3209
3210         if (iops_range && iops_count) {
3211                 ext2fs_set_iops_group(fs, iops_range, iops_count);
3212                 fs->super->s_flags |= EXT2_FLAGS_HAS_IOPS;
3213                 ext2fs_mark_super_dirty(fs);
3214
3215                 if (iops_range != iops_array)
3216                         free(iops_range);
3217         }
3218
3219         fs->progress_ops = &ext2fs_numeric_progress_ops;
3220
3221         /* Set the error behavior */
3222         retval = set_error_behavior(fs);
3223         if (retval)
3224                 usage();
3225
3226         /* Check the user's mkfs options for metadata checksumming */
3227         if (!quiet &&
3228             !ext2fs_has_feature_journal_dev(fs->super) &&
3229             ext2fs_has_feature_metadata_csum(fs->super)) {
3230                 if (!ext2fs_has_feature_extents(fs->super))
3231                         printf("%s",
3232                                _("Extents are not enabled.  The file extent "
3233                                  "tree can be checksummed, whereas block maps "
3234                                  "cannot.  Not enabling extents reduces the "
3235                                  "coverage of metadata checksumming.  "
3236                                  "Pass -O extents to rectify.\n"));
3237                 if (!ext2fs_has_feature_64bit(fs->super))
3238                         printf("%s",
3239                                _("64-bit filesystem support is not enabled.  "
3240                                  "The larger fields afforded by this feature "
3241                                  "enable full-strength checksumming.  "
3242                                  "Pass -O 64bit to rectify.\n"));
3243         }
3244
3245         if (ext2fs_has_feature_csum_seed(fs->super) &&
3246             !ext2fs_has_feature_metadata_csum(fs->super)) {
3247                 printf("%s", _("The metadata_csum_seed feature "
3248                                "requires the metadata_csum feature.\n"));
3249                 exit(1);
3250         }
3251
3252         if (ext2fs_has_feature_dirdata(fs->super)) {
3253                 if (ext2fs_has_feature_inline_data(fs->super)) {
3254                         printf("%s", _("The dirdata feature can not enabled "
3255                                        "with inline data feature.\n"));
3256                         exit(1);
3257                 }
3258                 if (ext2fs_has_feature_casefold(fs->super)) {
3259                         printf("%s", _("The dirdata feature can not enabled "
3260                                        "with casefold feature.\n"));
3261                         exit(1);
3262                 }
3263         }
3264
3265         /* Calculate journal blocks */
3266         if (!journal_device && ((journal_size) ||
3267             ext2fs_has_feature_journal(&fs_param)))
3268                 figure_journal_size(&jparams, journal_size, journal_fc_size, fs);
3269
3270         sprintf(opt_string, "tdb_data_size=%d", fs->blocksize <= 4096 ?
3271                 32768 : fs->blocksize * 8);
3272         io_channel_set_options(fs->io, opt_string);
3273         if (offset) {
3274                 sprintf(opt_string, "offset=%llu", (unsigned long long) offset);
3275                 io_channel_set_options(fs->io, opt_string);
3276         }
3277
3278         if (assume_storage_prezeroed) {
3279                 if (verbose)
3280                         printf("%s",
3281                                _("Assuming the storage device is prezeroed "
3282                                "- skipping inode table and journal wipe\n"));
3283
3284                 lazy_itable_init = 1;
3285                 itable_zeroed = 1;
3286                 zero_hugefile = 0;
3287                 journal_flags |= EXT2_MKJOURNAL_LAZYINIT;
3288         }
3289
3290         /* Can't undo discard ... */
3291         if (!noaction && discard && dev_size && (io_ptr != undo_io_manager)) {
3292                 retval = mke2fs_discard_device(fs);
3293                 if (!retval && io_channel_discard_zeroes_data(fs->io)) {
3294                         if (verbose)
3295                                 printf("%s",
3296                                        _("Discard succeeded and will return "
3297                                          "0s - skipping inode table wipe\n"));
3298                         lazy_itable_init = 1;
3299                         itable_zeroed = 1;
3300                         zero_hugefile = 0;
3301                 }
3302         }
3303
3304         if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS)
3305                 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
3306
3307         if (ext2fs_has_feature_flex_bg(&fs_param) ||
3308             ext2fs_has_feature_huge_file(&fs_param) ||
3309             ext2fs_has_feature_gdt_csum(&fs_param) ||
3310             ext2fs_has_feature_dir_nlink(&fs_param) ||
3311             ext2fs_has_feature_metadata_csum(&fs_param) ||
3312             ext2fs_has_feature_extra_isize(&fs_param))
3313                 fs->super->s_kbytes_written = 1;
3314
3315         /*
3316          * Wipe out the old on-disk superblock
3317          */
3318         if (!noaction)
3319                 zap_sector(fs, 2, 6);
3320
3321         /*
3322          * Parse or generate a UUID for the filesystem
3323          */
3324         if (fs_uuid) {
3325                 if ((strcasecmp(fs_uuid, "null") == 0) ||
3326                     (strcasecmp(fs_uuid, "clear") == 0)) {
3327                         uuid_clear(fs->super->s_uuid);
3328                 } else if (strcasecmp(fs_uuid, "time") == 0) {
3329                         uuid_generate_time(fs->super->s_uuid);
3330                 } else if (strcasecmp(fs_uuid, "random") == 0) {
3331                         uuid_generate(fs->super->s_uuid);
3332                 } else if (uuid_parse(fs_uuid, fs->super->s_uuid) != 0) {
3333                         com_err(device_name, 0, "could not parse UUID: %s\n",
3334                                 fs_uuid);
3335                         exit(1);
3336                 }
3337         } else
3338                 uuid_generate(fs->super->s_uuid);
3339
3340         if (ext2fs_has_feature_csum_seed(fs->super))
3341                 fs->super->s_checksum_seed = ext2fs_crc32c_le(~0,
3342                                 fs->super->s_uuid, sizeof(fs->super->s_uuid));
3343
3344         ext2fs_init_csum_seed(fs);
3345
3346         /*
3347          * Initialize the directory index variables
3348          */
3349         hash_alg_str = get_string_from_profile(fs_types, "hash_alg",
3350                                                "half_md4");
3351         hash_alg = e2p_string2hash(hash_alg_str);
3352         free(hash_alg_str);
3353         fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg :
3354                 EXT2_HASH_HALF_MD4;
3355
3356         if (memcmp(fs_param.s_hash_seed, zero_buf,
3357                 sizeof(fs_param.s_hash_seed)) != 0) {
3358                 memcpy(fs->super->s_hash_seed, fs_param.s_hash_seed,
3359                         sizeof(fs->super->s_hash_seed));
3360         } else
3361                 uuid_generate((unsigned char *) fs->super->s_hash_seed);
3362
3363         /*
3364          * Periodic checks can be enabled/disabled via config file.
3365          * Note we override the kernel include file's idea of what the default
3366          * check interval (never) should be.  It's a good idea to check at
3367          * least *occasionally*, specially since servers will never rarely get
3368          * to reboot, since Linux is so robust these days.  :-)
3369          *
3370          * 180 days (six months) seems like a good value.
3371          */
3372 #ifdef EXT2_DFL_CHECKINTERVAL
3373 #undef EXT2_DFL_CHECKINTERVAL
3374 #endif
3375 #define EXT2_DFL_CHECKINTERVAL (86400L * 180L)
3376
3377         if (get_bool_from_profile(fs_types, "enable_periodic_fsck", 0)) {
3378                 fs->super->s_checkinterval = EXT2_DFL_CHECKINTERVAL;
3379                 fs->super->s_max_mnt_count = EXT2_DFL_MAX_MNT_COUNT;
3380                 /*
3381                  * Add "jitter" to the superblock's check interval so that we
3382                  * don't check all the filesystems at the same time.  We use a
3383                  * kludgy hack of using the UUID to derive a random jitter value
3384                  */
3385                 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++)
3386                         val += fs->super->s_uuid[i];
3387                 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
3388         } else
3389                 fs->super->s_max_mnt_count = -1;
3390
3391         /*
3392          * Override the creator OS, if applicable
3393          */
3394         if (creator_os && !set_os(fs->super, creator_os)) {
3395                 com_err (program_name, 0, _("unknown os - %s"), creator_os);
3396                 exit(1);
3397         }
3398
3399         /*
3400          * For the Hurd, we will turn off filetype since it doesn't
3401          * support it.
3402          */
3403         if (fs->super->s_creator_os == EXT2_OS_HURD)
3404                 ext2fs_clear_feature_filetype(fs->super);
3405
3406         /*
3407          * Set the volume label...
3408          */
3409         if (volume_label) {
3410                 memset(fs->super->s_volume_name, 0,
3411                        sizeof(fs->super->s_volume_name));
3412                 strncpy((char *) fs->super->s_volume_name, volume_label,
3413                         sizeof(fs->super->s_volume_name));
3414         }
3415
3416         /*
3417          * Set the last mount directory
3418          */
3419         if (mount_dir) {
3420                 memset(fs->super->s_last_mounted, 0,
3421                        sizeof(fs->super->s_last_mounted));
3422                 strncpy((char *) fs->super->s_last_mounted, mount_dir,
3423                         sizeof(fs->super->s_last_mounted));
3424         }
3425
3426         /* Set current default encryption algorithms for data and
3427          * filename encryption */
3428         if (ext2fs_has_feature_encrypt(fs->super)) {
3429                 fs->super->s_encrypt_algos[0] =
3430                         EXT4_ENCRYPTION_MODE_AES_256_XTS;
3431                 fs->super->s_encrypt_algos[1] =
3432                         EXT4_ENCRYPTION_MODE_AES_256_CTS;
3433         }
3434
3435         if (ext2fs_has_feature_metadata_csum(fs->super))
3436                 fs->super->s_checksum_type = EXT2_CRC32C_CHKSUM;
3437
3438         if (!quiet || noaction)
3439                 show_stats(fs);
3440
3441         if (noaction)
3442                 exit(0);
3443
3444         if (ext2fs_has_feature_journal_dev(fs->super)) {
3445                 create_journal_dev(fs);
3446                 printf("\n");
3447                 exit(ext2fs_close_free(&fs) ? 1 : 0);
3448         }
3449
3450         if (bad_blocks_filename)
3451                 read_bb_file(fs, &bb_list, bad_blocks_filename);
3452         if (cflag)
3453                 test_disk(fs, &bb_list);
3454         handle_bad_blocks(fs, bb_list);
3455
3456         fs->stride = fs_stride = fs->super->s_raid_stride;
3457         if (!quiet)
3458                 printf("%s", _("Allocating group tables: "));
3459         if (ext2fs_has_feature_flex_bg(fs->super) &&
3460             packed_meta_blocks)
3461                 retval = packed_allocate_tables(fs);
3462         else
3463                 retval = ext2fs_allocate_tables(fs);
3464         if (retval) {
3465                 com_err(program_name, retval, "%s",
3466                         _("while trying to allocate filesystem tables"));
3467                 exit(1);
3468         }
3469         if (!quiet)
3470                 printf("%s", _("done                            \n"));
3471
3472         /*
3473          * Unmark bad blocks to calculate overhead, because metadata
3474          * blocks and bad blocks can land on the same allocation cluster.
3475          */
3476         if (bb_list) {
3477                 retval = ext2fs_badblocks_list_iterate_begin(bb_list,
3478                                                              &bb_iter);
3479                 if (retval) {
3480                         com_err("ext2fs_badblocks_list_iterate_begin", retval,
3481                                 "%s", _("while unmarking bad blocks"));
3482                         exit(1);
3483                 }
3484                 while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
3485                         ext2fs_unmark_block_bitmap2(fs->block_map, blk);
3486                 ext2fs_badblocks_list_iterate_end(bb_iter);
3487         }
3488
3489         retval = ext2fs_convert_subcluster_bitmap(fs, &fs->block_map);
3490         if (retval) {
3491                 com_err(program_name, retval, "%s",
3492                         _("\n\twhile converting subcluster bitmap"));
3493                 exit(1);
3494         }
3495
3496         retval = ext2fs_count_used_clusters(fs, fs->super->s_first_data_block,
3497                                         ext2fs_blocks_count(fs->super) - 1,
3498                                         &overhead);
3499         if (retval) {
3500                 com_err(program_name, retval, "%s",
3501                         _("while calculating overhead"));
3502                 exit(1);
3503         }
3504
3505         if (bb_list) {
3506                 retval = ext2fs_badblocks_list_iterate_begin(bb_list,
3507                                                              &bb_iter);
3508                 if (retval) {
3509                         com_err("ext2fs_badblocks_list_iterate_begin", retval,
3510                                 "%s", _("while marking bad blocks as used"));
3511                         exit(1);
3512                 }
3513                 while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
3514                         ext2fs_mark_block_bitmap2(fs->block_map, blk);
3515                 ext2fs_badblocks_list_iterate_end(bb_iter);
3516         }
3517
3518         if (super_only) {
3519                 check_plausibility(device_name, CHECK_FS_EXIST, NULL);
3520                 printf(_("%s may be further corrupted by superblock rewrite\n"),
3521                        device_name);
3522                 if (!force)
3523                         proceed_question(proceed_delay);
3524                 fs->super->s_state |= EXT2_ERROR_FS;
3525                 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
3526                 /*
3527                  * The command "mke2fs -S" is used to recover
3528                  * corrupted file systems, so do not mark any of the
3529                  * inodes as unused; we want e2fsck to consider all
3530                  * inodes as potentially containing recoverable data.
3531                  */
3532                 if (ext2fs_has_group_desc_csum(fs)) {
3533                         for (i = 0; i < fs->group_desc_count; i++)
3534                                 ext2fs_bg_itable_unused_set(fs, i, 0);
3535                 }
3536         } else {
3537                 /* rsv must be a power of two (64kB is MD RAID sb alignment) */
3538                 blk64_t rsv = 65536 / fs->blocksize;
3539                 blk64_t blocks = ext2fs_blocks_count(fs->super);
3540                 blk64_t start;
3541                 blk64_t ret_blk;
3542
3543 #ifdef ZAP_BOOTBLOCK
3544                 zap_sector(fs, 0, 2);
3545 #endif
3546
3547                 /*
3548                  * Wipe out any old MD RAID (or other) metadata at the end
3549                  * of the device.  This will also verify that the device is
3550                  * as large as we think.  Be careful with very small devices.
3551                  */
3552                 start = (blocks & ~(rsv - 1));
3553                 if (start > rsv)
3554                         start -= rsv;
3555                 if (start > 0)
3556                         retval = ext2fs_zero_blocks2(fs, start, blocks - start,
3557                                                     &ret_blk, NULL);
3558
3559                 if (retval) {
3560                         com_err(program_name, retval,
3561                                 _("while zeroing block %llu at end of filesystem"),
3562                                 (unsigned long long) ret_blk);
3563                 }
3564                 write_inode_tables(fs, lazy_itable_init, itable_zeroed);
3565                 create_root_dir(fs);
3566                 create_lost_and_found(fs);
3567                 reserve_inodes(fs);
3568                 create_bad_block_inode(fs, bb_list);
3569                 if (ext2fs_has_feature_resize_inode(fs->super)) {
3570                         retval = ext2fs_create_resize_inode(fs);
3571                         if (retval) {
3572                                 com_err("ext2fs_create_resize_inode", retval,
3573                                         "%s",
3574                                 _("while reserving blocks for online resize"));
3575                                 exit(1);
3576                         }
3577                 }
3578         }
3579
3580         if (journal_device) {
3581                 ext2_filsys     jfs;
3582
3583                 if (!check_plausibility(journal_device, CHECK_BLOCK_DEV,
3584                                         NULL) && !force)
3585                         proceed_question(proceed_delay);
3586                 check_mount(journal_device, force, _("journal"));
3587
3588                 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
3589                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
3590                                      fs->blocksize, default_io_manager, &jfs);
3591                 if (retval) {
3592                         com_err(program_name, retval,
3593                                 _("while trying to open journal device %s\n"),
3594                                 journal_device);
3595                         exit(1);
3596                 }
3597                 if (!quiet) {
3598                         printf(_("Adding journal to device %s: "),
3599                                journal_device);
3600                         fflush(stdout);
3601                 }
3602                 retval = ext2fs_add_journal_device(fs, jfs);
3603                 if(retval) {
3604                         com_err (program_name, retval,
3605                                  _("\n\twhile trying to add journal to device %s"),
3606                                  journal_device);
3607                         exit(1);
3608                 }
3609                 if (!quiet)
3610                         printf("%s", _("done\n"));
3611                 ext2fs_close_free(&jfs);
3612                 free(journal_device);
3613         } else if ((journal_size) ||
3614                    ext2fs_has_feature_journal(&fs_param)) {
3615                 overhead += EXT2FS_NUM_B2C(fs, jparams.num_journal_blocks + jparams.num_fc_blocks);
3616                 if (super_only) {
3617                         printf("%s", _("Skipping journal creation in super-only mode\n"));
3618                         fs->super->s_journal_inum = EXT2_JOURNAL_INO;
3619                         goto no_journal;
3620                 }
3621
3622                 if (!jparams.num_journal_blocks) {
3623                         ext2fs_clear_feature_journal(fs->super);
3624                         ext2fs_clear_feature_orphan_file(fs->super);
3625                         ext2fs_clear_feature_journal(&fs_param);
3626                         ext2fs_clear_feature_orphan_file(&fs_param);
3627                         goto no_journal;
3628                 }
3629                 if (!quiet) {
3630                         printf(_("Creating journal (%u blocks): "),
3631                                jparams.num_journal_blocks + jparams.num_fc_blocks);
3632                         fflush(stdout);
3633                 }
3634                 retval = ext2fs_add_journal_inode3(fs, &jparams,
3635                                                    journal_location,
3636                                                    journal_flags);
3637                 if (retval) {
3638                         com_err(program_name, retval, "%s",
3639                                 _("\n\twhile trying to create journal"));
3640                         exit(1);
3641                 }
3642                 if (!quiet)
3643                         printf("%s", _("done\n"));
3644         }
3645 no_journal:
3646         if (!super_only &&
3647             ext2fs_has_feature_mmp(fs->super)) {
3648                 retval = ext2fs_mmp_init(fs);
3649                 if (retval) {
3650                         fprintf(stderr, "%s",
3651                                 _("\nError while enabling multiple "
3652                                   "mount protection feature."));
3653                         exit(1);
3654                 }
3655                 if (!quiet)
3656                         printf(_("Multiple mount protection is enabled "
3657                                  "with update interval %d seconds.\n"),
3658                                fs->super->s_mmp_update_interval);
3659         }
3660
3661         overhead += EXT2FS_NUM_B2C(fs, fs->super->s_first_data_block);
3662         if (!super_only)
3663                 fs->super->s_overhead_clusters = overhead;
3664
3665         if (ext2fs_has_feature_bigalloc(&fs_param))
3666                 fix_cluster_bg_counts(fs);
3667         if (ext2fs_has_feature_quota(&fs_param))
3668                 create_quota_inodes(fs);
3669         if (ext2fs_has_feature_orphan_file(&fs_param)) {
3670                 if (!ext2fs_has_feature_journal(&fs_param)) {
3671                         com_err(program_name, 0, _("cannot set orphan_file "
3672                                 "feature without a journal."));
3673                         exit(1);
3674                 }
3675                 if (!orphan_file_blocks) {
3676                         orphan_file_blocks =
3677                                 ext2fs_default_orphan_file_blocks(fs);
3678                 }
3679                 retval = ext2fs_create_orphan_file(fs, orphan_file_blocks);
3680                 if (retval) {
3681                         com_err(program_name, retval,
3682                                 _("while creating orphan file"));
3683                         exit(1);
3684                 }
3685         }
3686
3687         retval = mk_hugefiles(fs, device_name);
3688         if (retval)
3689                 com_err(program_name, retval, "while creating huge files");
3690         /* Copy files from the specified directory or tarball */
3691         if (src_root) {
3692                 if (!quiet)
3693                         printf("%s", _("Copying files into the device: "));
3694
3695                 retval = populate_fs(fs, EXT2_ROOT_INO, src_root,
3696                                      EXT2_ROOT_INO);
3697                 if (retval) {
3698                         com_err(program_name, retval, "%s",
3699                                 _("while populating file system"));
3700                         exit(1);
3701                 } else if (!quiet)
3702                         printf("%s", _("done\n"));
3703         }
3704
3705         if (!quiet)
3706                 printf("%s", _("Writing superblocks and "
3707                        "filesystem accounting information: "));
3708         checkinterval = fs->super->s_checkinterval;
3709         max_mnt_count = fs->super->s_max_mnt_count;
3710         retval = ext2fs_close_free(&fs);
3711         if (retval) {
3712                 com_err(program_name, retval, "%s",
3713                         _("while writing out and closing file system"));
3714                 retval = 1;
3715         } else if (!quiet) {
3716                 printf("%s", _("done\n\n"));
3717                 if (!getenv("MKE2FS_SKIP_CHECK_MSG"))
3718                         print_check_message(max_mnt_count, checkinterval);
3719         }
3720
3721         remove_error_table(&et_ext2_error_table);
3722         remove_error_table(&et_prof_error_table);
3723         profile_release(profile);
3724         for (i=0; fs_types[i]; i++)
3725                 free(fs_types[i]);
3726         free(fs_types);
3727         return retval;
3728 }