misc/mke2fs.c

   1 /*
   2  * mke2fs.c - Make a ext2fs filesystem.
   3  *
   4  * Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
   5  *      2003, 2004, 2005 by Theodore Ts'o.
   6  *
   7  * %Begin-Header%
   8  * This file may be redistributed under the terms of the GNU Public
   9  * License.
  10  * %End-Header%
  11  */
  12
  13 /* Usage: mke2fs [options] device
  14  *
  15  * The device may be a block device or a image of one, but this isn't
  16  * enforced (but it's not much fun on a character device :-).
  17  */
  18
  19 #define _XOPEN_SOURCE 600
  20
  21 #include "config.h"
  22 #include <stdio.h>
  23 #include <string.h>
  24 #include <strings.h>
  25 #include <ctype.h>
  26 #include <time.h>
  27 #ifdef __linux__
  28 #include <sys/utsname.h>
  29 #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
  30 #endif
  31 #ifdef HAVE_GETOPT_H
  32 #include <getopt.h>
  33 #else
  34 extern char *optarg;
  35 extern int optind;
  36 #endif
  37 #ifdef HAVE_UNISTD_H
  38 #include <unistd.h>
  39 #endif
  40 #ifdef HAVE_STDLIB_H
  41 #include <stdlib.h>
  42 #endif
  43 #ifdef HAVE_ERRNO_H
  44 #include <errno.h>
  45 #endif
  46 #ifdef HAVE_SYS_IOCTL_H
  47 #include <sys/ioctl.h>
  48 #endif
  49 #include <libgen.h>
  50 #include <limits.h>
  51 #include <blkid/blkid.h>
  52
  53 #include "ext2fs/ext2_fs.h"
  54 #include "ext2fs/ext2fsP.h"
  55 #include "uuid/uuid.h"
  56 #include "util.h"
  57 #include "support/nls-enable.h"
  58 #include "support/plausible.h"
  59 #include "support/profile.h"
  60 #include "support/prof_err.h"
  61 #include "../version.h"
  62 #include "support/quotaio.h"
  63 #include "mke2fs.h"
  64 #include "create_inode.h"
  65
  66 #define STRIDE_LENGTH 8
  67
  68 #define MAX_32_NUM ((((unsigned long long) 1) << 32) - 1)
  69
  70 #ifndef __sparc__
  71 #define ZAP_BOOTBLOCK
  72 #endif
  73
  74 #define DISCARD_STEP_MB         (2048)
  75
  76 extern int isatty(int);
  77 extern FILE *fpopen(const char *cmd, const char *mode);
  78
  79 const char * program_name = "mke2fs";
  80 static const char * device_name /* = NULL */;
  81
  82 /* Command line options */
  83 static int      cflag;
  84 int     verbose;
  85 int     quiet;
  86 static int      super_only;
  87 static int      discard = 1;    /* attempt to discard device before fs creation */
  88 static int      direct_io;
  89 static int      force;
  90 static int      noaction;
  91 static int      num_backups = 2; /* number of backup bg's for sparse_super2 */
  92 static uid_t    root_uid;
  93 static gid_t    root_gid;
  94 int     journal_size;
  95 int     journal_flags;
  96 int     journal_fc_size;
  97 static int      lazy_itable_init;
  98 static int      packed_meta_blocks;
  99 int             no_copy_xattrs;
 100 static char     *bad_blocks_filename = NULL;
 101 static __u32    fs_stride;
 102 /* Initialize usr/grp quotas by default */
 103 static unsigned int quotatype_bits = (QUOTA_USR_BIT | QUOTA_GRP_BIT);
 104 static __u64    offset;
 105 static blk64_t journal_location = ~0LL;
 106 static int      proceed_delay = -1;
 107 static blk64_t  dev_size;
 108
 109 static struct ext2_super_block fs_param;
 110 static __u32 zero_buf[4];
 111 static char *fs_uuid = NULL;
 112 static char *creator_os;
 113 static char *volume_label;
 114 static char *mount_dir;
 115 char *journal_device;
 116 static int sync_kludge; /* Set using the MKE2FS_SYNC env. option */
 117 char **fs_types;
 118 const char *src_root_dir;  /* Copy files from the specified directory */
 119 static char *undo_file;
 120
 121 static int android_sparse_file; /* -E android_sparse */
 122
 123 static profile_t        profile;
 124
 125 static int sys_page_size = 4096;
 126
 127 static int errors_behavior = 0;
 128
 129 static void usage(void)
 130 {
 131         fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] "
 132         "[-C cluster-size]\n\t[-i bytes-per-inode] [-I inode-size] "
 133         "[-J journal-options]\n"
 134         "\t[-G flex-group-size] [-N number-of-inodes] "
 135         "[-d root-directory]\n"
 136         "\t[-m reserved-blocks-percentage] [-o creator-os]\n"
 137         "\t[-g blocks-per-group] [-L volume-label] "
 138         "[-M last-mounted-directory]\n\t[-O feature[,...]] "
 139         "[-r fs-revision] [-E extended-option[,...]]\n"
 140         "\t[-t fs-type] [-T usage-type ] [-U UUID] [-e errors_behavior]"
 141         "[-z undo_file]\n"
 142         "\t[-jnqvDFSV] device [blocks-count]\n"),
 143                 program_name);
 144         exit(1);
 145 }
 146
 147 static int int_log2(unsigned long long arg)
 148 {
 149         int     l = 0;
 150
 151         arg >>= 1;
 152         while (arg) {
 153                 l++;
 154                 arg >>= 1;
 155         }
 156         return l;
 157 }
 158
 159 int int_log10(unsigned long long arg)
 160 {
 161         int     l;
 162
 163         for (l=0; arg ; l++)
 164                 arg = arg / 10;
 165         return l;
 166 }
 167
 168 #ifdef __linux__
 169 static int parse_version_number(const char *s)
 170 {
 171         int     major, minor, rev;
 172         char    *endptr;
 173         const char *cp = s;
 174
 175         if (!s)
 176                 return 0;
 177         major = strtol(cp, &endptr, 10);
 178         if (cp == endptr || *endptr != '.')
 179                 return 0;
 180         cp = endptr + 1;
 181         minor = strtol(cp, &endptr, 10);
 182         if (cp == endptr || *endptr != '.')
 183                 return 0;
 184         cp = endptr + 1;
 185         rev = strtol(cp, &endptr, 10);
 186         if (cp == endptr)
 187                 return 0;
 188         return KERNEL_VERSION(major, minor, rev);
 189 }
 190
 191 static int is_before_linux_ver(unsigned int major, unsigned int minor,
 192                                unsigned int rev)
 193 {
 194         struct          utsname ut;
 195         static int      linux_version_code = -1;
 196
 197         if (uname(&ut)) {
 198                 perror("uname");
 199                 exit(1);
 200         }
 201         if (linux_version_code < 0)
 202                 linux_version_code = parse_version_number(ut.release);
 203         if (linux_version_code == 0)
 204                 return 0;
 205
 206         return linux_version_code < (int) KERNEL_VERSION(major, minor, rev);
 207 }
 208 #else
 209 static int is_before_linux_ver(unsigned int major, unsigned int minor,
 210                                unsigned int rev)
 211 {
 212         return 0;
 213 }
 214 #endif
 215
 216 /*
 217  * Helper function for read_bb_file and test_disk
 218  */
 219 static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk)
 220 {
 221         fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk);
 222         return;
 223 }
 224
 225 /*
 226  * Reads the bad blocks list from a file
 227  */
 228 static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list,
 229                          const char *bad_blocks_file)
 230 {
 231         FILE            *f;
 232         errcode_t       retval;
 233
 234         f = fopen(bad_blocks_file, "r");
 235         if (!f) {
 236                 com_err("read_bad_blocks_file", errno,
 237                         _("while trying to open %s"), bad_blocks_file);
 238                 exit(1);
 239         }
 240         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
 241         fclose (f);
 242         if (retval) {
 243                 com_err("ext2fs_read_bb_FILE", retval, "%s",
 244                         _("while reading in list of bad blocks from file"));
 245                 exit(1);
 246         }
 247 }
 248
 249 /*
 250  * Runs the badblocks program to test the disk
 251  */
 252 static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
 253 {
 254         FILE            *f;
 255         errcode_t       retval;
 256         char            buf[1024];
 257
 258         sprintf(buf, "badblocks -b %d -X %s%s%s %llu", fs->blocksize,
 259                 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "",
 260                 fs->device_name, ext2fs_blocks_count(fs->super)-1);
 261         if (verbose)
 262                 printf(_("Running command: %s\n"), buf);
 263         f = popen(buf, "r");
 264         if (!f) {
 265                 com_err("popen", errno,
 266                         _("while trying to run '%s'"), buf);
 267                 exit(1);
 268         }
 269         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
 270         pclose(f);
 271         if (retval) {
 272                 com_err("ext2fs_read_bb_FILE", retval, "%s",
 273                         _("while processing list of bad blocks from program"));
 274                 exit(1);
 275         }
 276 }
 277
 278 static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
 279 {
 280         dgrp_t                  i;
 281         blk_t                   j;
 282         unsigned                must_be_good;
 283         blk_t                   blk;
 284         badblocks_iterate       bb_iter;
 285         errcode_t               retval;
 286         blk_t                   group_block;
 287         int                     group;
 288         int                     group_bad;
 289
 290         if (!bb_list)
 291                 return;
 292
 293         /*
 294          * The primary superblock and group descriptors *must* be
 295          * good; if not, abort.
 296          */
 297         must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
 298         for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
 299                 if (ext2fs_badblocks_list_test(bb_list, i)) {
 300                         fprintf(stderr, _("Block %d in primary "
 301                                 "superblock/group descriptor area bad.\n"), i);
 302                         fprintf(stderr, _("Blocks %u through %u must be good "
 303                                 "in order to build a filesystem.\n"),
 304                                 fs->super->s_first_data_block, must_be_good);
 305                         fputs(_("Aborting....\n"), stderr);
 306                         exit(1);
 307                 }
 308         }
 309
 310         /*
 311          * See if any of the bad blocks are showing up in the backup
 312          * superblocks and/or group descriptors.  If so, issue a
 313          * warning and adjust the block counts appropriately.
 314          */
 315         group_block = fs->super->s_first_data_block +
 316                 fs->super->s_blocks_per_group;
 317
 318         for (i = 1; i < fs->group_desc_count; i++) {
 319                 group_bad = 0;
 320                 for (j=0; j < fs->desc_blocks+1; j++) {
 321                         if (ext2fs_badblocks_list_test(bb_list,
 322                                                        group_block + j)) {
 323                                 if (!group_bad)
 324                                         fprintf(stderr,
 325 _("Warning: the backup superblock/group descriptors at block %u contain\n"
 326 "       bad blocks.\n\n"),
 327                                                 group_block);
 328                                 group_bad++;
 329                                 group = ext2fs_group_of_blk2(fs, group_block+j);
 330                                 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
 331                                 ext2fs_group_desc_csum_set(fs, group);
 332                                 ext2fs_free_blocks_count_add(fs->super, 1);
 333                         }
 334                 }
 335                 group_block += fs->super->s_blocks_per_group;
 336         }
 337
 338         /*
 339          * Mark all the bad blocks as used...
 340          */
 341         retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
 342         if (retval) {
 343                 com_err("ext2fs_badblocks_list_iterate_begin", retval, "%s",
 344                         _("while marking bad blocks as used"));
 345                 exit(1);
 346         }
 347         while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
 348                 ext2fs_mark_block_bitmap2(fs->block_map, blk);
 349         ext2fs_badblocks_list_iterate_end(bb_iter);
 350 }
 351
 352 static void write_reserved_inodes(ext2_filsys fs)
 353 {
 354         errcode_t       retval;
 355         ext2_ino_t      ino;
 356         struct ext2_inode *inode;
 357
 358         retval = ext2fs_get_memzero(EXT2_INODE_SIZE(fs->super), &inode);
 359         if (retval) {
 360                 com_err("inode_init", retval, _("while allocating memory"));
 361                 exit(1);
 362         }
 363
 364         for (ino = 1; ino < EXT2_FIRST_INO(fs->super); ino++) {
 365                 retval = ext2fs_write_inode_full(fs, ino, inode,
 366                                                  EXT2_INODE_SIZE(fs->super));
 367                 if (retval) {
 368                         com_err("ext2fs_write_inode_full", retval,
 369                                 _("while writing reserved inodes"));
 370                         exit(1);
 371                 }
 372         }
 373
 374         ext2fs_free_mem(&inode);
 375 }
 376
 377 static errcode_t packed_allocate_tables(ext2_filsys fs)
 378 {
 379         errcode_t       retval;
 380         dgrp_t          i;
 381         blk64_t         goal = 0;
 382
 383         for (i = 0; i < fs->group_desc_count; i++) {
 384                 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
 385                 if (retval)
 386                         return retval;
 387                 ext2fs_block_alloc_stats2(fs, goal, +1);
 388                 ext2fs_block_bitmap_loc_set(fs, i, goal);
 389         }
 390         for (i = 0; i < fs->group_desc_count; i++) {
 391                 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
 392                 if (retval)
 393                         return retval;
 394                 ext2fs_block_alloc_stats2(fs, goal, +1);
 395                 ext2fs_inode_bitmap_loc_set(fs, i, goal);
 396         }
 397         for (i = 0; i < fs->group_desc_count; i++) {
 398                 blk64_t end = ext2fs_blocks_count(fs->super) - 1;
 399                 retval = ext2fs_get_free_blocks2(fs, goal, end,
 400                                                  fs->inode_blocks_per_group,
 401                                                  fs->block_map, &goal);
 402                 if (retval)
 403                         return retval;
 404                 ext2fs_block_alloc_stats_range(fs, goal,
 405                                                fs->inode_blocks_per_group, +1);
 406                 ext2fs_inode_table_loc_set(fs, i, goal);
 407                 ext2fs_group_desc_csum_set(fs, i);
 408         }
 409         return 0;
 410 }
 411
 412 static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed)
 413 {
 414         errcode_t       retval;
 415         blk64_t         blk;
 416         dgrp_t          i;
 417         int             num;
 418         struct ext2fs_numeric_progress_struct progress;
 419
 420         ext2fs_numeric_progress_init(fs, &progress,
 421                                      _("Writing inode tables: "),
 422                                      fs->group_desc_count);
 423
 424         for (i = 0; i < fs->group_desc_count; i++) {
 425                 ext2fs_numeric_progress_update(fs, &progress, i);
 426
 427                 blk = ext2fs_inode_table_loc(fs, i);
 428                 num = fs->inode_blocks_per_group;
 429
 430                 if (lazy_flag)
 431                         num = ext2fs_div_ceil((fs->super->s_inodes_per_group -
 432                                                ext2fs_bg_itable_unused(fs, i)) *
 433                                               EXT2_INODE_SIZE(fs->super),
 434                                               EXT2_BLOCK_SIZE(fs->super));
 435                 if (!lazy_flag || itable_zeroed) {
 436                         /* The kernel doesn't need to zero the itable blocks */
 437                         ext2fs_bg_flags_set(fs, i, EXT2_BG_INODE_ZEROED);
 438                         ext2fs_group_desc_csum_set(fs, i);
 439                 }
 440                 if (!itable_zeroed) {
 441                         retval = ext2fs_zero_blocks2(fs, blk, num, &blk, &num);
 442                         if (retval) {
 443                                 fprintf(stderr, _("\nCould not write %d "
 444                                           "blocks in inode table starting at %llu: %s\n"),
 445                                         num, blk, error_message(retval));
 446                                 exit(1);
 447                         }
 448                 }
 449                 if (sync_kludge) {
 450                         if (sync_kludge == 1)
 451                                 io_channel_flush(fs->io);
 452                         else if ((i % sync_kludge) == 0)
 453                                 io_channel_flush(fs->io);
 454                 }
 455         }
 456         ext2fs_numeric_progress_close(fs, &progress,
 457                                       _("done                            \n"));
 458
 459         /* Reserved inodes must always have correct checksums */
 460         if (ext2fs_has_feature_metadata_csum(fs->super))
 461                 write_reserved_inodes(fs);
 462 }
 463
 464 static void create_root_dir(ext2_filsys fs)
 465 {
 466         errcode_t               retval;
 467         struct ext2_inode       inode;
 468
 469         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
 470         if (retval) {
 471                 com_err("ext2fs_mkdir", retval, "%s",
 472                         _("while creating root dir"));
 473                 exit(1);
 474         }
 475         if (root_uid != 0 || root_gid != 0) {
 476                 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
 477                 if (retval) {
 478                         com_err("ext2fs_read_inode", retval, "%s",
 479                                 _("while reading root inode"));
 480                         exit(1);
 481                 }
 482
 483                 inode.i_uid = root_uid;
 484                 ext2fs_set_i_uid_high(inode, root_uid >> 16);
 485                 inode.i_gid = root_gid;
 486                 ext2fs_set_i_gid_high(inode, root_gid >> 16);
 487
 488                 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
 489                 if (retval) {
 490                         com_err("ext2fs_write_inode", retval, "%s",
 491                                 _("while setting root inode ownership"));
 492                         exit(1);
 493                 }
 494         }
 495 }
 496
 497 static void create_lost_and_found(ext2_filsys fs)
 498 {
 499         unsigned int            lpf_size = 0;
 500         errcode_t               retval;
 501         ext2_ino_t              ino;
 502         const char              *name = "lost+found";
 503         int                     i;
 504
 505         fs->umask = 077;
 506         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
 507         if (retval) {
 508                 com_err("ext2fs_mkdir", retval, "%s",
 509                         _("while creating /lost+found"));
 510                 exit(1);
 511         }
 512
 513         retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
 514         if (retval) {
 515                 com_err("ext2_lookup", retval, "%s",
 516                         _("while looking up /lost+found"));
 517                 exit(1);
 518         }
 519
 520         for (i=1; i < EXT2_NDIR_BLOCKS; i++) {
 521                 /* Ensure that lost+found is at least 2 blocks, so we always
 522                  * test large empty blocks for big-block filesystems.  */
 523                 if ((lpf_size += fs->blocksize) >= 16*1024 &&
 524                     lpf_size >= 2 * fs->blocksize)
 525                         break;
 526                 retval = ext2fs_expand_dir(fs, ino);
 527                 if (retval) {
 528                         com_err("ext2fs_expand_dir", retval, "%s",
 529                                 _("while expanding /lost+found"));
 530                         exit(1);
 531                 }
 532         }
 533 }
 534
 535 static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
 536 {
 537         errcode_t       retval;
 538
 539         ext2fs_mark_inode_bitmap2(fs->inode_map, EXT2_BAD_INO);
 540         ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0);
 541         retval = ext2fs_update_bb_inode(fs, bb_list);
 542         if (retval) {
 543                 com_err("ext2fs_update_bb_inode", retval, "%s",
 544                         _("while setting bad block inode"));
 545                 exit(1);
 546         }
 547
 548 }
 549
 550 static void reserve_inodes(ext2_filsys fs)
 551 {
 552         ext2_ino_t      i;
 553
 554         for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++)
 555                 ext2fs_inode_alloc_stats2(fs, i, +1, 0);
 556         ext2fs_mark_ib_dirty(fs);
 557 }
 558
 559 #define BSD_DISKMAGIC   (0x82564557UL)  /* The disk magic number */
 560 #define BSD_MAGICDISK   (0x57455682UL)  /* The disk magic number reversed */
 561 #define BSD_LABEL_OFFSET        64
 562
 563 static void zap_sector(ext2_filsys fs, int sect, int nsect)
 564 {
 565         char *buf;
 566         int retval;
 567         unsigned int *magic;
 568
 569         buf = calloc(512, nsect);
 570         if (!buf) {
 571                 printf(_("Out of memory erasing sectors %d-%d\n"),
 572                        sect, sect + nsect - 1);
 573                 exit(1);
 574         }
 575
 576         if (sect == 0) {
 577                 /* Check for a BSD disklabel, and don't erase it if so */
 578                 retval = io_channel_read_blk64(fs->io, 0, -512, buf);
 579                 if (retval)
 580                         fprintf(stderr,
 581                                 _("Warning: could not read block 0: %s\n"),
 582                                 error_message(retval));
 583                 else {
 584                         magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);
 585                         if ((*magic == BSD_DISKMAGIC) ||
 586                             (*magic == BSD_MAGICDISK))
 587                                 return;
 588                 }
 589         }
 590
 591         memset(buf, 0, 512*nsect);
 592         io_channel_set_blksize(fs->io, 512);
 593         retval = io_channel_write_blk64(fs->io, sect, -512*nsect, buf);
 594         io_channel_set_blksize(fs->io, fs->blocksize);
 595         free(buf);
 596         if (retval)
 597                 fprintf(stderr, _("Warning: could not erase sector %d: %s\n"),
 598                         sect, error_message(retval));
 599 }
 600
 601 static void create_journal_dev(ext2_filsys fs)
 602 {
 603         struct ext2fs_numeric_progress_struct progress;
 604         errcode_t               retval;
 605         char                    *buf;
 606         blk64_t                 blk, err_blk;
 607         int                     c, count, err_count;
 608         struct ext2fs_journal_params    jparams;
 609
 610         retval = ext2fs_get_journal_params(&jparams, fs);
 611         if (retval) {
 612                 com_err("create_journal_dev", retval, "%s",
 613                         _("while splitting the journal size"));
 614                 exit(1);
 615         }
 616
 617         retval = ext2fs_create_journal_superblock2(fs, &jparams, 0, &buf);
 618         if (retval) {
 619                 com_err("create_journal_dev", retval, "%s",
 620                         _("while initializing journal superblock"));
 621                 exit(1);
 622         }
 623
 624         if (journal_flags & EXT2_MKJOURNAL_LAZYINIT)
 625                 goto write_superblock;
 626
 627         ext2fs_numeric_progress_init(fs, &progress,
 628                                      _("Zeroing journal device: "),
 629                                      ext2fs_blocks_count(fs->super));
 630         blk = 0;
 631         count = ext2fs_blocks_count(fs->super);
 632         while (count > 0) {
 633                 if (count > 1024)
 634                         c = 1024;
 635                 else
 636                         c = count;
 637                 retval = ext2fs_zero_blocks2(fs, blk, c, &err_blk, &err_count);
 638                 if (retval) {
 639                         com_err("create_journal_dev", retval,
 640                                 _("while zeroing journal device "
 641                                   "(block %llu, count %d)"),
 642                                 err_blk, err_count);
 643                         exit(1);
 644                 }
 645                 blk += c;
 646                 count -= c;
 647                 ext2fs_numeric_progress_update(fs, &progress, blk);
 648         }
 649
 650         ext2fs_numeric_progress_close(fs, &progress, NULL);
 651 write_superblock:
 652         retval = io_channel_write_blk64(fs->io,
 653                                         fs->super->s_first_data_block+1,
 654                                         1, buf);
 655         (void) ext2fs_free_mem(&buf);
 656         if (retval) {
 657                 com_err("create_journal_dev", retval, "%s",
 658                         _("while writing journal superblock"));
 659                 exit(1);
 660         }
 661 }
 662
 663 static void show_stats(ext2_filsys fs)
 664 {
 665         struct ext2_super_block *s = fs->super;
 666         char                    *os;
 667         blk64_t                 group_block;
 668         dgrp_t                  i;
 669         int                     need, col_left;
 670
 671         if (!verbose) {
 672                 printf(_("Creating filesystem with %llu %dk blocks and "
 673                          "%u inodes\n"),
 674                        ext2fs_blocks_count(s), fs->blocksize >> 10,
 675                        s->s_inodes_count);
 676                 goto skip_details;
 677         }
 678
 679         if (ext2fs_blocks_count(&fs_param) != ext2fs_blocks_count(s))
 680                 fprintf(stderr, _("warning: %llu blocks unused.\n\n"),
 681                        ext2fs_blocks_count(&fs_param) - ext2fs_blocks_count(s));
 682
 683         printf(_("Filesystem label=%.*s\n"), EXT2_LEN_STR(s->s_volume_name));
 684
 685         os = e2p_os2string(fs->super->s_creator_os);
 686         if (os)
 687                 printf(_("OS type: %s\n"), os);
 688         free(os);
 689         printf(_("Block size=%u (log=%u)\n"), fs->blocksize,
 690                 s->s_log_block_size);
 691         if (ext2fs_has_feature_bigalloc(fs->super))
 692                 printf(_("Cluster size=%u (log=%u)\n"),
 693                        fs->blocksize << fs->cluster_ratio_bits,
 694                        s->s_log_cluster_size);
 695         else
 696                 printf(_("Fragment size=%u (log=%u)\n"), EXT2_CLUSTER_SIZE(s),
 697                        s->s_log_cluster_size);
 698         printf(_("Stride=%u blocks, Stripe width=%u blocks\n"),
 699                s->s_raid_stride, s->s_raid_stripe_width);
 700         printf(_("%u inodes, %llu blocks\n"), s->s_inodes_count,
 701                ext2fs_blocks_count(s));
 702         printf(_("%llu blocks (%2.2f%%) reserved for the super user\n"),
 703                 ext2fs_r_blocks_count(s),
 704                100.0 *  ext2fs_r_blocks_count(s) / ext2fs_blocks_count(s));
 705         printf(_("First data block=%u\n"), s->s_first_data_block);
 706         if (root_uid != 0 || root_gid != 0)
 707                 printf(_("Root directory owner=%u:%u\n"), root_uid, root_gid);
 708         if (s->s_reserved_gdt_blocks)
 709                 printf(_("Maximum filesystem blocks=%lu\n"),
 710                        (s->s_reserved_gdt_blocks + fs->desc_blocks) *
 711                        EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group);
 712         if (fs->group_desc_count > 1)
 713                 printf(_("%u block groups\n"), fs->group_desc_count);
 714         else
 715                 printf(_("%u block group\n"), fs->group_desc_count);
 716         if (ext2fs_has_feature_bigalloc(fs->super))
 717                 printf(_("%u blocks per group, %u clusters per group\n"),
 718                        s->s_blocks_per_group, s->s_clusters_per_group);
 719         else
 720                 printf(_("%u blocks per group, %u fragments per group\n"),
 721                        s->s_blocks_per_group, s->s_clusters_per_group);
 722         printf(_("%u inodes per group\n"), s->s_inodes_per_group);
 723
 724 skip_details:
 725         if (fs->group_desc_count == 1) {
 726                 printf("\n");
 727                 return;
 728         }
 729
 730         if (!e2p_is_null_uuid(s->s_uuid))
 731                 printf(_("Filesystem UUID: %s\n"), e2p_uuid2str(s->s_uuid));
 732         printf("%s", _("Superblock backups stored on blocks: "));
 733         group_block = s->s_first_data_block;
 734         col_left = 0;
 735         for (i = 1; i < fs->group_desc_count; i++) {
 736                 group_block += s->s_blocks_per_group;
 737                 if (!ext2fs_bg_has_super(fs, i))
 738                         continue;
 739                 if (i != 1)
 740                         printf(", ");
 741                 need = int_log10(group_block) + 2;
 742                 if (need > col_left) {
 743                         printf("\n\t");
 744                         col_left = 72;
 745                 }
 746                 col_left -= need;
 747                 printf("%llu", group_block);
 748         }
 749         printf("\n\n");
 750 }
 751
 752 /*
 753  * Returns true if making a file system for the Hurd, else 0
 754  */
 755 static int for_hurd(const char *os)
 756 {
 757         if (!os) {
 758 #ifdef __GNU__
 759                 return 1;
 760 #else
 761                 return 0;
 762 #endif
 763         }
 764         if (isdigit(*os))
 765                 return (atoi(os) == EXT2_OS_HURD);
 766         return (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0);
 767 }
 768
 769 /*
 770  * Set the S_CREATOR_OS field.  Return true if OS is known,
 771  * otherwise, 0.
 772  */
 773 static int set_os(struct ext2_super_block *sb, char *os)
 774 {
 775         if (isdigit (*os))
 776                 sb->s_creator_os = atoi (os);
 777         else if (strcasecmp(os, "linux") == 0)
 778                 sb->s_creator_os = EXT2_OS_LINUX;
 779         else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0)
 780                 sb->s_creator_os = EXT2_OS_HURD;
 781         else if (strcasecmp(os, "freebsd") == 0)
 782                 sb->s_creator_os = EXT2_OS_FREEBSD;
 783         else if (strcasecmp(os, "lites") == 0)
 784                 sb->s_creator_os = EXT2_OS_LITES;
 785         else
 786                 return 0;
 787         return 1;
 788 }
 789
 790 #define PATH_SET "PATH=/sbin"
 791
 792 static void parse_extended_opts(struct ext2_super_block *param,
 793                                 const char *opts)
 794 {
 795         char    *buf, *token, *next, *p, *arg, *badopt = 0;
 796         int     len;
 797         int     r_usage = 0;
 798         int     ret;
 799         int     encoding = -1;
 800         char    *encoding_flags = NULL;
 801
 802         len = strlen(opts);
 803         buf = malloc(len+1);
 804         if (!buf) {
 805                 fprintf(stderr, "%s",
 806                         _("Couldn't allocate memory to parse options!\n"));
 807                 exit(1);
 808         }
 809         strcpy(buf, opts);
 810         for (token = buf; token && *token; token = next) {
 811                 p = strchr(token, ',');
 812                 next = 0;
 813                 if (p) {
 814                         *p = 0;
 815                         next = p+1;
 816                 }
 817                 arg = strchr(token, '=');
 818                 if (arg) {
 819                         *arg = 0;
 820                         arg++;
 821                 }
 822                 if (strcmp(token, "desc-size") == 0 ||
 823                     strcmp(token, "desc_size") == 0) {
 824                         int desc_size;
 825
 826                         if (!ext2fs_has_feature_64bit(&fs_param)) {
 827                                 fprintf(stderr,
 828                                         _("%s requires '-O 64bit'\n"), token);
 829                                 r_usage++;
 830                                 continue;
 831                         }
 832                         if (param->s_reserved_gdt_blocks != 0) {
 833                                 fprintf(stderr,
 834                                         _("'%s' must be before 'resize=%u'\n"),
 835                                         token, param->s_reserved_gdt_blocks);
 836                                 r_usage++;
 837                                 continue;
 838                         }
 839                         if (!arg) {
 840                                 r_usage++;
 841                                 badopt = token;
 842                                 continue;
 843                         }
 844                         desc_size = strtoul(arg, &p, 0);
 845                         if (*p || (desc_size & (desc_size - 1))) {
 846                                 fprintf(stderr,
 847                                         _("Invalid desc_size: '%s'\n"), arg);
 848                                 r_usage++;
 849                                 continue;
 850                         }
 851                         param->s_desc_size = desc_size;
 852                 } else if (strcmp(token, "hash_seed") == 0) {
 853                         if (!arg) {
 854                                 r_usage++;
 855                                 badopt = token;
 856                                 continue;
 857                         }
 858                         if (uuid_parse(arg,
 859                                 (unsigned char *)param->s_hash_seed) != 0) {
 860                                 fprintf(stderr,
 861                                         _("Invalid hash seed: %s\n"), arg);
 862                                 r_usage++;
 863                                 continue;
 864                         }
 865                 } else if (strcmp(token, "offset") == 0) {
 866                         if (!arg) {
 867                                 r_usage++;
 868                                 badopt = token;
 869                                 continue;
 870                         }
 871                         offset = strtoull(arg, &p, 0);
 872                         if (*p) {
 873                                 fprintf(stderr, _("Invalid offset: %s\n"),
 874                                         arg);
 875                                 r_usage++;
 876                                 continue;
 877                         }
 878                 } else if (strcmp(token, "mmp_update_interval") == 0) {
 879                         if (!arg) {
 880                                 r_usage++;
 881                                 badopt = token;
 882                                 continue;
 883                         }
 884                         param->s_mmp_update_interval = strtoul(arg, &p, 0);
 885                         if (*p) {
 886                                 fprintf(stderr,
 887                                         _("Invalid mmp_update_interval: %s\n"),
 888                                         arg);
 889                                 r_usage++;
 890                                 continue;
 891                         }
 892                 } else if (strcmp(token, "no_copy_xattrs") == 0) {
 893                         no_copy_xattrs = 1;
 894                         continue;
 895                 } else if (strcmp(token, "num_backup_sb") == 0) {
 896                         if (!arg) {
 897                                 r_usage++;
 898                                 badopt = token;
 899                                 continue;
 900                         }
 901                         num_backups = strtoul(arg, &p, 0);
 902                         if (*p || num_backups > 2) {
 903                                 fprintf(stderr,
 904                                         _("Invalid # of backup "
 905                                           "superblocks: %s\n"),
 906                                         arg);
 907                                 r_usage++;
 908                                 continue;
 909                         }
 910                 } else if (strcmp(token, "packed_meta_blocks") == 0) {
 911                         if (arg)
 912                                 packed_meta_blocks = strtoul(arg, &p, 0);
 913                         else
 914                                 packed_meta_blocks = 1;
 915                         if (packed_meta_blocks)
 916                                 journal_location = 0;
 917                 } else if (strcmp(token, "stride") == 0) {
 918                         if (!arg) {
 919                                 r_usage++;
 920                                 badopt = token;
 921                                 continue;
 922                         }
 923                         param->s_raid_stride = strtoul(arg, &p, 0);
 924                         if (*p) {
 925                                 fprintf(stderr,
 926                                         _("Invalid stride parameter: %s\n"),
 927                                         arg);
 928                                 r_usage++;
 929                                 continue;
 930                         }
 931                 } else if (strcmp(token, "stripe-width") == 0 ||
 932                            strcmp(token, "stripe_width") == 0) {
 933                         if (!arg) {
 934                                 r_usage++;
 935                                 badopt = token;
 936                                 continue;
 937                         }
 938                         param->s_raid_stripe_width = strtoul(arg, &p, 0);
 939                         if (*p) {
 940                                 fprintf(stderr,
 941                                         _("Invalid stripe-width parameter: %s\n"),
 942                                         arg);
 943                                 r_usage++;
 944                                 continue;
 945                         }
 946                 } else if (!strcmp(token, "resize")) {
 947                         blk64_t resize;
 948                         unsigned long bpg, rsv_groups;
 949                         unsigned long group_desc_count, desc_blocks;
 950                         unsigned int gdpb, blocksize;
 951                         int rsv_gdb;
 952
 953                         if (!arg) {
 954                                 r_usage++;
 955                                 badopt = token;
 956                                 continue;
 957                         }
 958
 959                         resize = parse_num_blocks2(arg,
 960                                                    param->s_log_block_size);
 961
 962                         if (resize == 0) {
 963                                 fprintf(stderr,
 964                                         _("Invalid resize parameter: %s\n"),
 965                                         arg);
 966                                 r_usage++;
 967                                 continue;
 968                         }
 969                         if (resize <= ext2fs_blocks_count(param)) {
 970                                 fprintf(stderr, "%s",
 971                                         _("The resize maximum must be greater "
 972                                           "than the filesystem size.\n"));
 973                                 r_usage++;
 974                                 continue;
 975                         }
 976
 977                         blocksize = EXT2_BLOCK_SIZE(param);
 978                         bpg = param->s_blocks_per_group;
 979                         if (!bpg)
 980                                 bpg = blocksize * 8;
 981                         gdpb = EXT2_DESC_PER_BLOCK(param);
 982                         group_desc_count = (__u32) ext2fs_div64_ceil(
 983                                 ext2fs_blocks_count(param), bpg);
 984                         desc_blocks = (group_desc_count +
 985                                        gdpb - 1) / gdpb;
 986                         rsv_groups = ext2fs_div64_ceil(resize, bpg);
 987                         rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) -
 988                                 desc_blocks;
 989                         if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param))
 990                                 rsv_gdb = EXT2_ADDR_PER_BLOCK(param);
 991
 992                         if (rsv_gdb > 0) {
 993                                 if (param->s_rev_level == EXT2_GOOD_OLD_REV) {
 994                                         fprintf(stderr, "%s",
 995         _("On-line resizing not supported with revision 0 filesystems\n"));
 996                                         free(buf);
 997                                         exit(1);
 998                                 }
 999                                 ext2fs_set_feature_resize_inode(param);
1000
1001                                 param->s_reserved_gdt_blocks = rsv_gdb;
1002                         }
1003                 } else if (!strcmp(token, "test_fs")) {
1004                         param->s_flags |= EXT2_FLAGS_TEST_FILESYS;
1005                 } else if (!strcmp(token, "lazy_itable_init")) {
1006                         if (arg)
1007                                 lazy_itable_init = strtoul(arg, &p, 0);
1008                         else
1009                                 lazy_itable_init = 1;
1010                 } else if (!strcmp(token, "lazy_journal_init")) {
1011                         if (arg)
1012                                 journal_flags |= strtoul(arg, &p, 0) ?
1013                                                 EXT2_MKJOURNAL_LAZYINIT : 0;
1014                         else
1015                                 journal_flags |= EXT2_MKJOURNAL_LAZYINIT;
1016                 } else if (!strcmp(token, "root_owner")) {
1017                         if (arg) {
1018                                 root_uid = strtoul(arg, &p, 0);
1019                                 if (*p != ':') {
1020                                         fprintf(stderr,
1021                                                 _("Invalid root_owner: '%s'\n"),
1022                                                 arg);
1023                                         r_usage++;
1024                                         continue;
1025                                 }
1026                                 p++;
1027                                 root_gid = strtoul(p, &p, 0);
1028                                 if (*p) {
1029                                         fprintf(stderr,
1030                                                 _("Invalid root_owner: '%s'\n"),
1031                                                 arg);
1032                                         r_usage++;
1033                                         continue;
1034                                 }
1035                         } else {
1036                                 root_uid = getuid();
1037                                 root_gid = getgid();
1038                         }
1039                 } else if (!strcmp(token, "discard")) {
1040                         discard = 1;
1041                 } else if (!strcmp(token, "nodiscard")) {
1042                         discard = 0;
1043                 } else if (!strcmp(token, "quotatype")) {
1044                         char *errtok = NULL;
1045
1046                         if (!arg) {
1047                                 r_usage++;
1048                                 badopt = token;
1049                                 continue;
1050                         }
1051                         quotatype_bits = 0;
1052                         ret = parse_quota_types(arg, &quotatype_bits, &errtok);
1053                         if (ret) {
1054                                 if (errtok) {
1055                                         fprintf(stderr,
1056                                 "Failed to parse quota type at %s", errtok);
1057                                         free(errtok);
1058                                 } else
1059                                         com_err(program_name, ret,
1060                                                 "while parsing quota type");
1061                                 r_usage++;
1062                                 badopt = token;
1063                                 continue;
1064                         }
1065                 } else if (!strcmp(token, "android_sparse")) {
1066                         android_sparse_file = 1;
1067                 } else if (!strcmp(token, "encoding")) {
1068                         if (!arg) {
1069                                 r_usage++;
1070                                 continue;
1071                         }
1072
1073                         encoding = e2p_str2encoding(arg);
1074                         if (encoding < 0) {
1075                                 fprintf(stderr, _("Invalid encoding: %s"), arg);
1076                                 r_usage++;
1077                                 continue;
1078                         }
1079                         param->s_encoding = encoding;
1080                         ext2fs_set_feature_casefold(param);
1081                 } else if (!strcmp(token, "encoding_flags")) {
1082                         if (!arg) {
1083                                 r_usage++;
1084                                 continue;
1085                         }
1086                         encoding_flags = arg;
1087                 } else {
1088                         r_usage++;
1089                         badopt = token;
1090                 }
1091         }
1092         if (r_usage) {
1093                 fprintf(stderr, _("\nBad option(s) specified: %s\n\n"
1094                         "Extended options are separated by commas, "
1095                         "and may take an argument which\n"
1096                         "\tis set off by an equals ('=') sign.\n\n"
1097                         "Valid extended options are:\n"
1098                         "\tmmp_update_interval=<interval>\n"
1099                         "\tnum_backup_sb=<0|1|2>\n"
1100                         "\tstride=<RAID per-disk data chunk in blocks>\n"
1101                         "\tstripe-width=<RAID stride * data disks in blocks>\n"
1102                         "\toffset=<offset to create the file system>\n"
1103                         "\tresize=<resize maximum size in blocks>\n"
1104                         "\tpacked_meta_blocks=<0 to disable, 1 to enable>\n"
1105                         "\tlazy_itable_init=<0 to disable, 1 to enable>\n"
1106                         "\tlazy_journal_init=<0 to disable, 1 to enable>\n"
1107                         "\troot_owner=<uid of root dir>:<gid of root dir>\n"
1108                         "\ttest_fs\n"
1109                         "\tdiscard\n"
1110                         "\tnodiscard\n"
1111                         "\tencoding=<encoding>\n"
1112                         "\tencoding_flags=<flags>\n"
1113                         "\tquotatype=<quota type(s) to be enabled>\n\n"),
1114                         badopt ? badopt : "");
1115                 free(buf);
1116                 exit(1);
1117         }
1118         if (param->s_raid_stride &&
1119             (param->s_raid_stripe_width % param->s_raid_stride) != 0)
1120                 fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even "
1121                                   "multiple of stride %u.\n\n"),
1122                         param->s_raid_stripe_width, param->s_raid_stride);
1123
1124         if (ext2fs_has_feature_casefold(param)) {
1125                 param->s_encoding_flags =
1126                         e2p_get_encoding_flags(param->s_encoding);
1127
1128                 if (encoding_flags &&
1129                     e2p_str2encoding_flags(param->s_encoding, encoding_flags,
1130                                            &param->s_encoding_flags)) {
1131                         fprintf(stderr, _("error: Invalid encoding flag: %s\n"),
1132                                 encoding_flags);
1133                         free(buf);
1134                         exit(1);
1135                 }
1136         } else if (encoding_flags) {
1137                 fprintf(stderr, _("error: An encoding must be explicitly "
1138                                   "specified when passing encoding-flags\n"));
1139                 free(buf);
1140                 exit(1);
1141         }
1142
1143         free(buf);
1144 }
1145
1146 static __u32 ok_features[3] = {
1147         /* Compat */
1148         EXT3_FEATURE_COMPAT_HAS_JOURNAL |
1149                 EXT2_FEATURE_COMPAT_RESIZE_INODE |
1150                 EXT2_FEATURE_COMPAT_DIR_INDEX |
1151                 EXT2_FEATURE_COMPAT_EXT_ATTR |
1152                 EXT4_FEATURE_COMPAT_SPARSE_SUPER2 |
1153                 EXT4_FEATURE_COMPAT_FAST_COMMIT |
1154                 EXT4_FEATURE_COMPAT_STABLE_INODES,
1155         /* Incompat */
1156         EXT2_FEATURE_INCOMPAT_FILETYPE|
1157                 EXT3_FEATURE_INCOMPAT_EXTENTS|
1158                 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
1159                 EXT2_FEATURE_INCOMPAT_META_BG|
1160                 EXT4_FEATURE_INCOMPAT_FLEX_BG|
1161                 EXT4_FEATURE_INCOMPAT_EA_INODE|
1162                 EXT4_FEATURE_INCOMPAT_MMP |
1163                 EXT4_FEATURE_INCOMPAT_64BIT|
1164                 EXT4_FEATURE_INCOMPAT_INLINE_DATA|
1165                 EXT4_FEATURE_INCOMPAT_ENCRYPT |
1166                 EXT4_FEATURE_INCOMPAT_CASEFOLD |
1167                 EXT4_FEATURE_INCOMPAT_CSUM_SEED |
1168                 EXT4_FEATURE_INCOMPAT_LARGEDIR,
1169         /* R/O compat */
1170         EXT2_FEATURE_RO_COMPAT_LARGE_FILE|
1171                 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
1172                 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
1173                 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
1174                 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|
1175                 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
1176                 EXT4_FEATURE_RO_COMPAT_BIGALLOC|
1177                 EXT4_FEATURE_RO_COMPAT_QUOTA|
1178                 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|
1179                 EXT4_FEATURE_RO_COMPAT_PROJECT|
1180                 EXT4_FEATURE_RO_COMPAT_VERITY
1181 };
1182
1183
1184 static void syntax_err_report(const char *filename, long err, int line_num)
1185 {
1186         fprintf(stderr,
1187                 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"),
1188                 filename, line_num, error_message(err));
1189         exit(1);
1190 }
1191
1192 static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 };
1193
1194 static void edit_feature(const char *str, __u32 *compat_array)
1195 {
1196         if (!str)
1197                 return;
1198
1199         if (e2p_edit_feature(str, compat_array, ok_features)) {
1200                 fprintf(stderr, _("Invalid filesystem option set: %s\n"),
1201                         str);
1202                 exit(1);
1203         }
1204 }
1205
1206 static void edit_mntopts(const char *str, __u32 *mntopts)
1207 {
1208         if (!str)
1209                 return;
1210
1211         if (e2p_edit_mntopts(str, mntopts, ~0)) {
1212                 fprintf(stderr, _("Invalid mount option set: %s\n"),
1213                         str);
1214                 exit(1);
1215         }
1216 }
1217
1218 struct str_list {
1219         char **list;
1220         int num;
1221         int max;
1222 };
1223
1224 static errcode_t init_list(struct str_list *sl)
1225 {
1226         sl->num = 0;
1227         sl->max = 1;
1228         sl->list = malloc((sl->max+1) * sizeof(char *));
1229         if (!sl->list)
1230                 return ENOMEM;
1231         sl->list[0] = 0;
1232         return 0;
1233 }
1234
1235 static errcode_t push_string(struct str_list *sl, const char *str)
1236 {
1237         char **new_list;
1238
1239         if (sl->num >= sl->max) {
1240                 sl->max += 2;
1241                 new_list = realloc(sl->list, (sl->max+1) * sizeof(char *));
1242                 if (!new_list)
1243                         return ENOMEM;
1244                 sl->list = new_list;
1245         }
1246         sl->list[sl->num] = malloc(strlen(str)+1);
1247         if (sl->list[sl->num] == 0)
1248                 return ENOMEM;
1249         strcpy(sl->list[sl->num], str);
1250         sl->num++;
1251         sl->list[sl->num] = 0;
1252         return 0;
1253 }
1254
1255 static void print_str_list(char **list)
1256 {
1257         char **cpp;
1258
1259         for (cpp = list; *cpp; cpp++) {
1260                 printf("'%s'", *cpp);
1261                 if (cpp[1])
1262                         fputs(", ", stdout);
1263         }
1264         fputc('\n', stdout);
1265 }
1266
1267 /*
1268  * Return TRUE if the profile has the given subsection
1269  */
1270 static int profile_has_subsection(profile_t prof, const char *section,
1271                                   const char *subsection)
1272 {
1273         void                    *state;
1274         const char              *names[4];
1275         char                    *name;
1276         int                     ret = 0;
1277
1278         names[0] = section;
1279         names[1] = subsection;
1280         names[2] = 0;
1281
1282         if (profile_iterator_create(prof, names,
1283                                     PROFILE_ITER_LIST_SECTION |
1284                                     PROFILE_ITER_RELATIONS_ONLY, &state))
1285                 return 0;
1286
1287         if ((profile_iterator(&state, &name, 0) == 0) && name) {
1288                 free(name);
1289                 ret = 1;
1290         }
1291
1292         profile_iterator_free(&state);
1293         return ret;
1294 }
1295
1296 static char **parse_fs_type(const char *fs_type,
1297                             const char *usage_types,
1298                             struct ext2_super_block *sb,
1299                             blk64_t fs_blocks_count,
1300                             char *progname)
1301 {
1302         const char      *ext_type = 0;
1303         char            *parse_str;
1304         char            *profile_type = 0;
1305         char            *cp, *t;
1306         const char      *size_type;
1307         struct str_list list;
1308         unsigned long long meg;
1309         int             is_hurd = for_hurd(creator_os);
1310
1311         if (init_list(&list))
1312                 return 0;
1313
1314         if (fs_type)
1315                 ext_type = fs_type;
1316         else if (is_hurd)
1317                 ext_type = "ext2";
1318         else if (!strcmp(program_name, "mke3fs"))
1319                 ext_type = "ext3";
1320         else if (!strcmp(program_name, "mke4fs"))
1321                 ext_type = "ext4";
1322         else if (progname) {
1323                 ext_type = strrchr(progname, '/');
1324                 if (ext_type)
1325                         ext_type++;
1326                 else
1327                         ext_type = progname;
1328
1329                 if (!strncmp(ext_type, "mkfs.", 5)) {
1330                         ext_type += 5;
1331                         if (ext_type[0] == 0)
1332                                 ext_type = 0;
1333                 } else
1334                         ext_type = 0;
1335         }
1336
1337         if (!ext_type) {
1338                 profile_get_string(profile, "defaults", "fs_type", 0,
1339                                    "ext2", &profile_type);
1340                 ext_type = profile_type;
1341                 if (!strcmp(ext_type, "ext2") && (journal_size != 0))
1342                         ext_type = "ext3";
1343         }
1344
1345
1346         if (!profile_has_subsection(profile, "fs_types", ext_type) &&
1347             strcmp(ext_type, "ext2")) {
1348                 printf(_("\nYour mke2fs.conf file does not define the "
1349                          "%s filesystem type.\n"), ext_type);
1350                 if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") ||
1351                     !strcmp(ext_type, "ext4dev")) {
1352                         printf("%s", _("You probably need to install an "
1353                                        "updated mke2fs.conf file.\n\n"));
1354                 }
1355                 if (!force) {
1356                         printf("%s", _("Aborting...\n"));
1357                         exit(1);
1358                 }
1359         }
1360
1361         meg = (1024 * 1024) / EXT2_BLOCK_SIZE(sb);
1362         if (fs_blocks_count < 3 * meg)
1363                 size_type = "floppy";
1364         else if (fs_blocks_count < 512 * meg)
1365                 size_type = "small";
1366         else if (fs_blocks_count < 4 * 1024 * 1024 * meg)
1367                 size_type = "default";
1368         else if (fs_blocks_count < 16 * 1024 * 1024 * meg)
1369                 size_type = "big";
1370         else
1371                 size_type = "huge";
1372
1373         if (!usage_types)
1374                 usage_types = size_type;
1375
1376         parse_str = malloc(strlen(usage_types)+1);
1377         if (!parse_str) {
1378                 free(profile_type);
1379                 free(list.list);
1380                 return 0;
1381         }
1382         strcpy(parse_str, usage_types);
1383
1384         if (ext_type)
1385                 push_string(&list, ext_type);
1386         cp = parse_str;
1387         while (1) {
1388                 t = strchr(cp, ',');
1389                 if (t)
1390                         *t = '\0';
1391
1392                 if (*cp) {
1393                         if (profile_has_subsection(profile, "fs_types", cp))
1394                                 push_string(&list, cp);
1395                         else if (strcmp(cp, "default") != 0)
1396                                 fprintf(stderr,
1397                                         _("\nWarning: the fs_type %s is not "
1398                                           "defined in mke2fs.conf\n\n"),
1399                                         cp);
1400                 }
1401                 if (t)
1402                         cp = t+1;
1403                 else
1404                         break;
1405         }
1406         free(parse_str);
1407         free(profile_type);
1408         if (is_hurd)
1409                 push_string(&list, "hurd");
1410         return (list.list);
1411 }
1412
1413 char *get_string_from_profile(char **types, const char *opt,
1414                                      const char *def_val)
1415 {
1416         char *ret = 0;
1417         int i;
1418
1419         for (i=0; types[i]; i++);
1420         for (i-=1; i >=0 ; i--) {
1421                 profile_get_string(profile, "fs_types", types[i],
1422                                    opt, 0, &ret);
1423                 if (ret)
1424                         return ret;
1425         }
1426         profile_get_string(profile, "defaults", opt, 0, def_val, &ret);
1427         return (ret);
1428 }
1429
1430 int get_int_from_profile(char **types, const char *opt, int def_val)
1431 {
1432         int ret;
1433         char **cpp;
1434
1435         profile_get_integer(profile, "defaults", opt, 0, def_val, &ret);
1436         for (cpp = types; *cpp; cpp++)
1437                 profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret);
1438         return ret;
1439 }
1440
1441 static unsigned int get_uint_from_profile(char **types, const char *opt,
1442                                         unsigned int def_val)
1443 {
1444         unsigned int ret;
1445         char **cpp;
1446
1447         profile_get_uint(profile, "defaults", opt, 0, def_val, &ret);
1448         for (cpp = types; *cpp; cpp++)
1449                 profile_get_uint(profile, "fs_types", *cpp, opt, ret, &ret);
1450         return ret;
1451 }
1452
1453 static double get_double_from_profile(char **types, const char *opt,
1454                                       double def_val)
1455 {
1456         double ret;
1457         char **cpp;
1458
1459         profile_get_double(profile, "defaults", opt, 0, def_val, &ret);
1460         for (cpp = types; *cpp; cpp++)
1461                 profile_get_double(profile, "fs_types", *cpp, opt, ret, &ret);
1462         return ret;
1463 }
1464
1465 int get_bool_from_profile(char **types, const char *opt, int def_val)
1466 {
1467         int ret;
1468         char **cpp;
1469
1470         profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret);
1471         for (cpp = types; *cpp; cpp++)
1472                 profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret);
1473         return ret;
1474 }
1475
1476 extern const char *mke2fs_default_profile;
1477 static const char *default_files[] = { "<default>", 0 };
1478
1479 struct device_param {
1480         unsigned long min_io;           /* prefered minimum IO size */
1481         unsigned long opt_io;           /* optimal IO size */
1482         unsigned long alignment_offset; /* alignment offset wrt physical block size */
1483         unsigned int dax:1;             /* supports dax? */
1484 };
1485
1486 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1487 /*
1488  * Sets the geometry of a device (stripe/stride), and returns the
1489  * device's alignment offset, if any, or a negative error.
1490  */
1491 static int get_device_geometry(const char *file,
1492                                unsigned int blocksize,
1493                                unsigned int psector_size,
1494                                struct device_param *dev_param)
1495 {
1496         int rc = -1;
1497         blkid_probe pr;
1498         blkid_topology tp;
1499         struct stat statbuf;
1500
1501         memset(dev_param, 0, sizeof(*dev_param));
1502
1503         /* Nothing to do for a regular file */
1504         if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode))
1505                 return 0;
1506
1507         pr = blkid_new_probe_from_filename(file);
1508         if (!pr)
1509                 goto out;
1510
1511         tp = blkid_probe_get_topology(pr);
1512         if (!tp)
1513                 goto out;
1514
1515         dev_param->min_io = blkid_topology_get_minimum_io_size(tp);
1516         dev_param->opt_io = blkid_topology_get_optimal_io_size(tp);
1517         if ((dev_param->min_io == 0) && (psector_size > blocksize))
1518                 dev_param->min_io = psector_size;
1519         if ((dev_param->opt_io == 0) && dev_param->min_io > 0)
1520                 dev_param->opt_io = dev_param->min_io;
1521         if ((dev_param->opt_io == 0) && (psector_size > blocksize))
1522                 dev_param->opt_io = psector_size;
1523
1524         dev_param->alignment_offset = blkid_topology_get_alignment_offset(tp);
1525 #ifdef HAVE_BLKID_TOPOLOGY_GET_DAX
1526         dev_param->dax = blkid_topology_get_dax(tp);
1527 #endif
1528         rc = 0;
1529 out:
1530         blkid_free_probe(pr);
1531         return rc;
1532 }
1533 #endif
1534
1535 static void PRS(int argc, char *argv[])
1536 {
1537         int             b, c, flags;
1538         int             cluster_size = 0;
1539         char            *tmp, **cpp;
1540         int             explicit_fssize = 0;
1541         int             blocksize = 0;
1542         int             inode_ratio = 0;
1543         int             inode_size = 0;
1544         unsigned long   flex_bg_size = 0;
1545         double          reserved_ratio = -1.0;
1546         int             lsector_size = 0, psector_size = 0;
1547         int             show_version_only = 0, is_device = 0;
1548         unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */
1549         errcode_t       retval;
1550         char *          oldpath = getenv("PATH");
1551         char *          extended_opts = 0;
1552         char *          fs_type = 0;
1553         char *          usage_types = 0;
1554         /*
1555          * NOTE: A few words about fs_blocks_count and blocksize:
1556          *
1557          * Initially, blocksize is set to zero, which implies 1024.
1558          * If -b is specified, blocksize is updated to the user's value.
1559          *
1560          * Next, the device size or the user's "blocks" command line argument
1561          * is used to set fs_blocks_count; the units are blocksize.
1562          *
1563          * Later, if blocksize hasn't been set and the profile specifies a
1564          * blocksize, then blocksize is updated and fs_blocks_count is scaled
1565          * appropriately.  Note the change in units!
1566          *
1567          * Finally, we complain about fs_blocks_count > 2^32 on a non-64bit fs.
1568          */
1569         blk64_t         fs_blocks_count = 0;
1570         long            sysval;
1571         int             s_opt = -1, r_opt = -1;
1572         char            *fs_features = 0;
1573         int             fs_features_size = 0;
1574         int             use_bsize;
1575         char            *newpath;
1576         int             pathlen = sizeof(PATH_SET) + 1;
1577         struct device_param dev_param;
1578
1579         if (oldpath)
1580                 pathlen += strlen(oldpath);
1581         newpath = malloc(pathlen);
1582         if (!newpath) {
1583                 fprintf(stderr, "%s",
1584                         _("Couldn't allocate memory for new PATH.\n"));
1585                 exit(1);
1586         }
1587         strcpy(newpath, PATH_SET);
1588
1589         /* Update our PATH to include /sbin  */
1590         if (oldpath) {
1591                 strcat (newpath, ":");
1592                 strcat (newpath, oldpath);
1593         }
1594         putenv (newpath);
1595
1596         /* Determine the system page size if possible */
1597 #ifdef HAVE_SYSCONF
1598 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
1599 #define _SC_PAGESIZE _SC_PAGE_SIZE
1600 #endif
1601 #ifdef _SC_PAGESIZE
1602         sysval = sysconf(_SC_PAGESIZE);
1603         if (sysval > 0)
1604                 sys_page_size = sysval;
1605 #endif /* _SC_PAGESIZE */
1606 #endif /* HAVE_SYSCONF */
1607
1608         if ((tmp = getenv("MKE2FS_CONFIG")) != NULL)
1609                 config_fn[0] = tmp;
1610         profile_set_syntax_err_cb(syntax_err_report);
1611         retval = profile_init(config_fn, &profile);
1612         if (retval == ENOENT) {
1613                 retval = profile_init(default_files, &profile);
1614                 if (retval)
1615                         goto profile_error;
1616                 retval = profile_set_default(profile, mke2fs_default_profile);
1617                 if (retval)
1618                         goto profile_error;
1619         } else if (retval) {
1620 profile_error:
1621                 fprintf(stderr, _("Couldn't init profile successfully"
1622                                   " (error: %ld).\n"), retval);
1623                 exit(1);
1624         }
1625
1626         setbuf(stdout, NULL);
1627         setbuf(stderr, NULL);
1628         add_error_table(&et_ext2_error_table);
1629         add_error_table(&et_prof_error_table);
1630         memset(&fs_param, 0, sizeof(struct ext2_super_block));
1631         fs_param.s_rev_level = 1;  /* Create revision 1 filesystems now */
1632
1633         if (is_before_linux_ver(2, 2, 0))
1634                 fs_param.s_rev_level = 0;
1635
1636         if (argc && *argv) {
1637                 program_name = get_progname(*argv);
1638
1639                 /* If called as mkfs.ext3, create a journal inode */
1640                 if (!strcmp(program_name, "mkfs.ext3") ||
1641                     !strcmp(program_name, "mke3fs"))
1642                         journal_size = -1;
1643         }
1644
1645         while ((c = getopt (argc, argv,
1646                     "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) {
1647                 switch (c) {
1648                 case 'b':
1649                         blocksize = parse_num_blocks2(optarg, -1);
1650                         b = (blocksize > 0) ? blocksize : -blocksize;
1651                         if (b < EXT2_MIN_BLOCK_SIZE ||
1652                             b > EXT2_MAX_BLOCK_SIZE) {
1653                                 com_err(program_name, 0,
1654                                         _("invalid block size - %s"), optarg);
1655                                 exit(1);
1656                         }
1657                         if (blocksize > 4096)
1658                                 fprintf(stderr, _("Warning: blocksize %d not "
1659                                                   "usable on most systems.\n"),
1660                                         blocksize);
1661                         if (blocksize > 0)
1662                                 fs_param.s_log_block_size =
1663                                         int_log2(blocksize >>
1664                                                  EXT2_MIN_BLOCK_LOG_SIZE);
1665                         break;
1666                 case 'c':       /* Check for bad blocks */
1667                         cflag++;
1668                         break;
1669                 case 'C':
1670                         cluster_size = parse_num_blocks2(optarg, -1);
1671                         if (cluster_size <= EXT2_MIN_CLUSTER_SIZE ||
1672                             cluster_size > EXT2_MAX_CLUSTER_SIZE) {
1673                                 com_err(program_name, 0,
1674                                         _("invalid cluster size - %s"),
1675                                         optarg);
1676                                 exit(1);
1677                         }
1678                         break;
1679                 case 'd':
1680                         src_root_dir = optarg;
1681                         break;
1682                 case 'D':
1683                         direct_io = 1;
1684                         break;
1685                 case 'R':
1686                         com_err(program_name, 0, "%s",
1687                                 _("'-R' is deprecated, use '-E' instead"));
1688                         /* fallthrough */
1689                 case 'E':
1690                         extended_opts = optarg;
1691                         break;
1692                 case 'e':
1693                         if (strcmp(optarg, "continue") == 0)
1694                                 errors_behavior = EXT2_ERRORS_CONTINUE;
1695                         else if (strcmp(optarg, "remount-ro") == 0)
1696                                 errors_behavior = EXT2_ERRORS_RO;
1697                         else if (strcmp(optarg, "panic") == 0)
1698                                 errors_behavior = EXT2_ERRORS_PANIC;
1699                         else {
1700                                 com_err(program_name, 0,
1701                                         _("bad error behavior - %s"),
1702                                         optarg);
1703                                 usage();
1704                         }
1705                         break;
1706                 case 'F':
1707                         force++;
1708                         break;
1709                 case 'g':
1710                         fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
1711                         if (*tmp) {
1712                                 com_err(program_name, 0, "%s",
1713                                 _("Illegal number for blocks per group"));
1714                                 exit(1);
1715                         }
1716                         if ((fs_param.s_blocks_per_group % 8) != 0) {
1717                                 com_err(program_name, 0, "%s",
1718                                 _("blocks per group must be multiple of 8"));
1719                                 exit(1);
1720                         }
1721                         break;
1722                 case 'G':
1723                         flex_bg_size = strtoul(optarg, &tmp, 0);
1724                         if (*tmp) {
1725                                 com_err(program_name, 0, "%s",
1726                                         _("Illegal number for flex_bg size"));
1727                                 exit(1);
1728                         }
1729                         if (flex_bg_size < 1 ||
1730                             (flex_bg_size & (flex_bg_size-1)) != 0) {
1731                                 com_err(program_name, 0, "%s",
1732                                         _("flex_bg size must be a power of 2"));
1733                                 exit(1);
1734                         }
1735                         if (flex_bg_size > MAX_32_NUM) {
1736                                 com_err(program_name, 0,
1737                                 _("flex_bg size (%lu) must be less than"
1738                                 " or equal to 2^31"), flex_bg_size);
1739                                 exit(1);
1740                         }
1741                         break;
1742                 case 'i':
1743                         inode_ratio = parse_num_blocks(optarg, -1);
1744                         if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
1745                             inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024) {
1746                                 com_err(program_name, 0,
1747                                         _("invalid inode ratio %s (min %d/max %d)"),
1748                                         optarg, EXT2_MIN_BLOCK_SIZE,
1749                                         EXT2_MAX_BLOCK_SIZE * 1024);
1750                                 exit(1);
1751                         }
1752                         break;
1753                 case 'I':
1754                         inode_size = strtoul(optarg, &tmp, 0);
1755                         if (*tmp) {
1756                                 com_err(program_name, 0,
1757                                         _("invalid inode size - %s"), optarg);
1758                                 exit(1);
1759                         }
1760                         break;
1761                 case 'j':
1762                         if (!journal_size)
1763                                 journal_size = -1;
1764                         if (!journal_fc_size)
1765                                 journal_fc_size = -1;
1766                         break;
1767                 case 'J':
1768                         parse_journal_opts(optarg);
1769                         break;
1770                 case 'K':
1771                         fprintf(stderr, "%s",
1772                                 _("Warning: -K option is deprecated and "
1773                                   "should not be used anymore. Use "
1774                                   "\'-E nodiscard\' extended option "
1775                                   "instead!\n"));
1776                         discard = 0;
1777                         break;
1778                 case 'l':
1779                         bad_blocks_filename = realloc(bad_blocks_filename,
1780                                                       strlen(optarg) + 1);
1781                         if (!bad_blocks_filename) {
1782                                 com_err(program_name, ENOMEM, "%s",
1783                                         _("in malloc for bad_blocks_filename"));
1784                                 exit(1);
1785                         }
1786                         strcpy(bad_blocks_filename, optarg);
1787                         break;
1788                 case 'L':
1789                         volume_label = optarg;
1790                         if (strlen(volume_label) > EXT2_LABEL_LEN) {
1791                                 volume_label[EXT2_LABEL_LEN] = '\0';
1792                                 fprintf(stderr, _("Warning: label too long; will be truncated to '%s'\n\n"),
1793                                         volume_label);
1794                         }
1795                         break;
1796                 case 'm':
1797                         reserved_ratio = strtod(optarg, &tmp);
1798                         if ( *tmp || reserved_ratio > 50 ||
1799                              reserved_ratio < 0) {
1800                                 com_err(program_name, 0,
1801                                         _("invalid reserved blocks percent - %s"),
1802                                         optarg);
1803                                 exit(1);
1804                         }
1805                         break;
1806                 case 'M':
1807                         mount_dir = optarg;
1808                         break;
1809                 case 'n':
1810                         noaction++;
1811                         break;
1812                 case 'N':
1813                         num_inodes = strtoul(optarg, &tmp, 0);
1814                         if (*tmp) {
1815                                 com_err(program_name, 0,
1816                                         _("bad num inodes - %s"), optarg);
1817                                         exit(1);
1818                         }
1819                         break;
1820                 case 'o':
1821                         creator_os = optarg;
1822                         break;
1823                 case 'O':
1824                         retval = ext2fs_resize_mem(fs_features_size,
1825                                    fs_features_size + 1 + strlen(optarg),
1826                                                    &fs_features);
1827                         if (retval) {
1828                                 com_err(program_name, retval,
1829                                      _("while allocating fs_feature string"));
1830                                 exit(1);
1831                         }
1832                         if (fs_features_size)
1833                                 strcat(fs_features, ",");
1834                         else
1835                                 fs_features[0] = 0;
1836                         strcat(fs_features, optarg);
1837                         fs_features_size += 1 + strlen(optarg);
1838                         break;
1839                 case 'q':
1840                         quiet = 1;
1841                         break;
1842                 case 'r':
1843                         r_opt = strtoul(optarg, &tmp, 0);
1844                         if (*tmp) {
1845                                 com_err(program_name, 0,
1846                                         _("bad revision level - %s"), optarg);
1847                                 exit(1);
1848                         }
1849                         if (r_opt > EXT2_MAX_SUPP_REV) {
1850                                 com_err(program_name, EXT2_ET_REV_TOO_HIGH,
1851                                         _("while trying to create revision %d"), r_opt);
1852                                 exit(1);
1853                         }
1854                         fs_param.s_rev_level = r_opt;
1855                         break;
1856                 case 's':       /* deprecated */
1857                         s_opt = atoi(optarg);
1858                         break;
1859                 case 'S':
1860                         super_only = 1;
1861                         break;
1862                 case 't':
1863                         if (fs_type) {
1864                                 com_err(program_name, 0, "%s",
1865                                     _("The -t option may only be used once"));
1866                                 exit(1);
1867                         }
1868                         fs_type = strdup(optarg);
1869                         break;
1870                 case 'T':
1871                         if (usage_types) {
1872                                 com_err(program_name, 0, "%s",
1873                                     _("The -T option may only be used once"));
1874                                 exit(1);
1875                         }
1876                         usage_types = strdup(optarg);
1877                         break;
1878                 case 'U':
1879                         fs_uuid = optarg;
1880                         break;
1881                 case 'v':
1882                         verbose = 1;
1883                         break;
1884                 case 'V':
1885                         /* Print version number and exit */
1886                         show_version_only++;
1887                         break;
1888                 case 'z':
1889                         undo_file = optarg;
1890                         break;
1891                 default:
1892                         usage();
1893                 }
1894         }
1895         if ((optind == argc) && !show_version_only)
1896                 usage();
1897         device_name = argv[optind++];
1898
1899         if (!quiet || show_version_only)
1900                 fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION,
1901                          E2FSPROGS_DATE);
1902
1903         if (show_version_only) {
1904                 fprintf(stderr, _("\tUsing %s\n"),
1905                         error_message(EXT2_ET_BASE));
1906                 exit(0);
1907         }
1908
1909         /*
1910          * If there's no blocksize specified and there is a journal
1911          * device, use it to figure out the blocksize
1912          */
1913         if (blocksize <= 0 && journal_device) {
1914                 ext2_filsys     jfs;
1915                 io_manager      io_ptr;
1916
1917 #ifdef CONFIG_TESTIO_DEBUG
1918                 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1919                         io_ptr = test_io_manager;
1920                         test_io_backing_manager = unix_io_manager;
1921                 } else
1922 #endif
1923                         io_ptr = unix_io_manager;
1924                 retval = ext2fs_open(journal_device,
1925                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
1926                                      0, io_ptr, &jfs);
1927                 if (retval) {
1928                         com_err(program_name, retval,
1929                                 _("while trying to open journal device %s\n"),
1930                                 journal_device);
1931                         exit(1);
1932                 }
1933                 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
1934                         com_err(program_name, 0,
1935                                 _("Journal dev blocksize (%d) smaller than "
1936                                   "minimum blocksize %d\n"), jfs->blocksize,
1937                                 -blocksize);
1938                         exit(1);
1939                 }
1940                 blocksize = jfs->blocksize;
1941                 printf(_("Using journal device's blocksize: %d\n"), blocksize);
1942                 fs_param.s_log_block_size =
1943                         int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1944                 ext2fs_close_free(&jfs);
1945         }
1946
1947         if (optind < argc) {
1948                 fs_blocks_count = parse_num_blocks2(argv[optind++],
1949                                                    fs_param.s_log_block_size);
1950                 if (!fs_blocks_count) {
1951                         com_err(program_name, 0,
1952                                 _("invalid blocks '%s' on device '%s'"),
1953                                 argv[optind - 1], device_name);
1954                         exit(1);
1955                 }
1956         }
1957         if (optind < argc)
1958                 usage();
1959
1960         profile_get_integer(profile, "options", "sync_kludge", 0, 0,
1961                             &sync_kludge);
1962         tmp = getenv("MKE2FS_SYNC");
1963         if (tmp)
1964                 sync_kludge = atoi(tmp);
1965
1966         profile_get_integer(profile, "options", "proceed_delay", 0, 0,
1967                             &proceed_delay);
1968
1969         /* The isatty() test is so we don't break existing scripts */
1970         flags = CREATE_FILE;
1971         if (isatty(0) && isatty(1) && !offset)
1972                 flags |= CHECK_FS_EXIST;
1973         if (!quiet)
1974                 flags |= VERBOSE_CREATE;
1975         if (fs_blocks_count == 0)
1976                 flags |= NO_SIZE;
1977         else
1978                 explicit_fssize = 1;
1979         if (!check_plausibility(device_name, flags, &is_device) && !force)
1980                 proceed_question(proceed_delay);
1981
1982         check_mount(device_name, force, _("filesystem"));
1983
1984         /* Determine the size of the device (if possible) */
1985         if (noaction && fs_blocks_count) {
1986                 dev_size = fs_blocks_count;
1987                 retval = 0;
1988         } else
1989 #ifndef _WIN32
1990                 retval = ext2fs_get_device_size2(device_name,
1991                                                  EXT2_BLOCK_SIZE(&fs_param),
1992                                                  &dev_size);
1993 #else
1994                 retval = ext2fs_get_device_size(device_name,
1995                                                 EXT2_BLOCK_SIZE(&fs_param),
1996                                                 &dev_size);
1997 #endif
1998         if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
1999                 com_err(program_name, retval, "%s",
2000                         _("while trying to determine filesystem size"));
2001                 exit(1);
2002         }
2003         if (!fs_blocks_count) {
2004                 if (retval == EXT2_ET_UNIMPLEMENTED) {
2005                         com_err(program_name, 0, "%s",
2006                                 _("Couldn't determine device size; you "
2007                                 "must specify\nthe size of the "
2008                                 "filesystem\n"));
2009                         exit(1);
2010                 } else {
2011                         if (dev_size == 0) {
2012                                 com_err(program_name, 0, "%s",
2013                                 _("Device size reported to be zero.  "
2014                                   "Invalid partition specified, or\n\t"
2015                                   "partition table wasn't reread "
2016                                   "after running fdisk, due to\n\t"
2017                                   "a modified partition being busy "
2018                                   "and in use.  You may need to reboot\n\t"
2019                                   "to re-read your partition table.\n"
2020                                   ));
2021                                 exit(1);
2022                         }
2023                         fs_blocks_count = dev_size;
2024                         if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param))
2025                                 fs_blocks_count &= ~((blk64_t) ((sys_page_size /
2026                                              EXT2_BLOCK_SIZE(&fs_param))-1));
2027                 }
2028         } else if (!force && is_device && (fs_blocks_count > dev_size)) {
2029                 com_err(program_name, 0, "%s",
2030                         _("Filesystem larger than apparent device size."));
2031                 proceed_question(proceed_delay);
2032         }
2033
2034         if (!fs_type)
2035                 profile_get_string(profile, "devices", device_name,
2036                                    "fs_type", 0, &fs_type);
2037         if (!usage_types)
2038                 profile_get_string(profile, "devices", device_name,
2039                                    "usage_types", 0, &usage_types);
2040
2041         /*
2042          * We have the file system (or device) size, so we can now
2043          * determine the appropriate file system types so the fs can
2044          * be appropriately configured.
2045          */
2046         fs_types = parse_fs_type(fs_type, usage_types, &fs_param,
2047                                  fs_blocks_count ? fs_blocks_count : dev_size,
2048                                  argv[0]);
2049         if (!fs_types) {
2050                 fprintf(stderr, "%s", _("Failed to parse fs types list\n"));
2051                 exit(1);
2052         }
2053
2054         /* Figure out what features should be enabled */
2055
2056         tmp = NULL;
2057         if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) {
2058                 tmp = get_string_from_profile(fs_types, "base_features",
2059                       "sparse_super,large_file,filetype,resize_inode,dir_index");
2060                 edit_feature(tmp, &fs_param.s_feature_compat);
2061                 free(tmp);
2062
2063                 /* And which mount options as well */
2064                 tmp = get_string_from_profile(fs_types, "default_mntopts",
2065                                               "acl,user_xattr");
2066                 edit_mntopts(tmp, &fs_param.s_default_mount_opts);
2067                 if (tmp)
2068                         free(tmp);
2069
2070                 for (cpp = fs_types; *cpp; cpp++) {
2071                         tmp = NULL;
2072                         profile_get_string(profile, "fs_types", *cpp,
2073                                            "features", "", &tmp);
2074                         if (tmp && *tmp)
2075                                 edit_feature(tmp, &fs_param.s_feature_compat);
2076                         if (tmp)
2077                                 free(tmp);
2078                 }
2079                 tmp = get_string_from_profile(fs_types, "default_features",
2080                                               "");
2081         }
2082         /* Mask off features which aren't supported by the Hurd */
2083         if (for_hurd(creator_os)) {
2084                 ext2fs_clear_feature_filetype(&fs_param);
2085                 ext2fs_clear_feature_huge_file(&fs_param);
2086                 ext2fs_clear_feature_metadata_csum(&fs_param);
2087                 ext2fs_clear_feature_ea_inode(&fs_param);
2088                 ext2fs_clear_feature_casefold(&fs_param);
2089         }
2090         edit_feature(fs_features ? fs_features : tmp,
2091                      &fs_param.s_feature_compat);
2092         if (tmp)
2093                 free(tmp);
2094         (void) ext2fs_free_mem(&fs_features);
2095         /*
2096          * If the user specified features incompatible with the Hurd, complain
2097          */
2098         if (for_hurd(creator_os)) {
2099                 if (ext2fs_has_feature_filetype(&fs_param)) {
2100                         fprintf(stderr, "%s", _("The HURD does not support the "
2101                                                 "filetype feature.\n"));
2102                         exit(1);
2103                 }
2104                 if (ext2fs_has_feature_huge_file(&fs_param)) {
2105                         fprintf(stderr, "%s", _("The HURD does not support the "
2106                                                 "huge_file feature.\n"));
2107                         exit(1);
2108                 }
2109                 if (ext2fs_has_feature_metadata_csum(&fs_param)) {
2110                         fprintf(stderr, "%s", _("The HURD does not support the "
2111                                                 "metadata_csum feature.\n"));
2112                         exit(1);
2113                 }
2114                 if (ext2fs_has_feature_ea_inode(&fs_param)) {
2115                         fprintf(stderr, "%s", _("The HURD does not support the "
2116                                                 "ea_inode feature.\n"));
2117                         exit(1);
2118                 }
2119         }
2120
2121         /* Get the hardware sector sizes, if available */
2122         retval = ext2fs_get_device_sectsize(device_name, &lsector_size);
2123         if (retval) {
2124                 com_err(program_name, retval, "%s",
2125                         _("while trying to determine hardware sector size"));
2126                 exit(1);
2127         }
2128         retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size);
2129         if (retval) {
2130                 com_err(program_name, retval, "%s",
2131                         _("while trying to determine physical sector size"));
2132                 exit(1);
2133         }
2134
2135         tmp = getenv("MKE2FS_DEVICE_SECTSIZE");
2136         if (tmp != NULL)
2137                 lsector_size = atoi(tmp);
2138         tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE");
2139         if (tmp != NULL)
2140                 psector_size = atoi(tmp);
2141
2142         /* Older kernels may not have physical/logical distinction */
2143         if (!psector_size)
2144                 psector_size = lsector_size;
2145
2146         if (blocksize <= 0) {
2147                 use_bsize = get_int_from_profile(fs_types, "blocksize", 4096);
2148
2149                 if (use_bsize == -1) {
2150                         use_bsize = sys_page_size;
2151                         if (is_before_linux_ver(2, 6, 0) && use_bsize > 4096)
2152                                 use_bsize = 4096;
2153                 }
2154                 if (lsector_size && use_bsize < lsector_size)
2155                         use_bsize = lsector_size;
2156                 if ((blocksize < 0) && (use_bsize < (-blocksize)))
2157                         use_bsize = -blocksize;
2158                 blocksize = use_bsize;
2159                 fs_blocks_count /= (blocksize / 1024);
2160         } else {
2161                 if (blocksize < lsector_size) {                 /* Impossible */
2162                         com_err(program_name, EINVAL, "%s",
2163                                 _("while setting blocksize; too small "
2164                                   "for device\n"));
2165                         exit(1);
2166                 } else if ((blocksize < psector_size) &&
2167                            (psector_size <= sys_page_size)) {   /* Suboptimal */
2168                         fprintf(stderr, _("Warning: specified blocksize %d is "
2169                                 "less than device physical sectorsize %d\n"),
2170                                 blocksize, psector_size);
2171                 }
2172         }
2173
2174         fs_param.s_log_block_size =
2175                 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
2176
2177         /*
2178          * We now need to do a sanity check of fs_blocks_count for
2179          * 32-bit vs 64-bit block number support.
2180          */
2181         if ((fs_blocks_count > MAX_32_NUM) &&
2182             ext2fs_has_feature_64bit(&fs_param))
2183                 ext2fs_clear_feature_resize_inode(&fs_param);
2184         if ((fs_blocks_count > MAX_32_NUM) &&
2185             !ext2fs_has_feature_64bit(&fs_param) &&
2186             get_bool_from_profile(fs_types, "auto_64-bit_support", 0)) {
2187                 ext2fs_set_feature_64bit(&fs_param);
2188                 ext2fs_clear_feature_resize_inode(&fs_param);
2189         }
2190         if ((fs_blocks_count > MAX_32_NUM) &&
2191             !ext2fs_has_feature_64bit(&fs_param)) {
2192                 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2193                                   "too big to be expressed\n\t"
2194                                   "in 32 bits using a blocksize of %d.\n"),
2195                         program_name, fs_blocks_count, device_name,
2196                         EXT2_BLOCK_SIZE(&fs_param));
2197                 exit(1);
2198         }
2199         /*
2200          * Guard against group descriptor count overflowing... Mostly to avoid
2201          * strange results for absurdly large devices.  This is in log2:
2202          * (blocksize) * (bits per byte) * (maximum number of block groups)
2203          */
2204         if (fs_blocks_count >
2205             (1ULL << (EXT2_BLOCK_SIZE_BITS(&fs_param) + 3 + 32)) - 1) {
2206                 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2207                                   "too big to create\n\t"
2208                                   "a filesystem using a blocksize of %d.\n"),
2209                         program_name, fs_blocks_count, device_name,
2210                         EXT2_BLOCK_SIZE(&fs_param));
2211                 exit(1);
2212         }
2213
2214         ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2215
2216         if (ext2fs_has_feature_journal_dev(&fs_param)) {
2217                 int i;
2218
2219                 for (i=0; fs_types[i]; i++) {
2220                         free(fs_types[i]);
2221                         fs_types[i] = 0;
2222                 }
2223                 fs_types[0] = strdup("journal");
2224                 fs_types[1] = 0;
2225         }
2226
2227         if (verbose) {
2228                 fputs(_("fs_types for mke2fs.conf resolution: "), stdout);
2229                 print_str_list(fs_types);
2230         }
2231
2232         if (r_opt == EXT2_GOOD_OLD_REV &&
2233             (fs_param.s_feature_compat || fs_param.s_feature_incompat ||
2234              fs_param.s_feature_ro_compat)) {
2235                 fprintf(stderr, "%s", _("Filesystem features not supported "
2236                                         "with revision 0 filesystems\n"));
2237                 exit(1);
2238         }
2239
2240         if (s_opt > 0) {
2241                 if (r_opt == EXT2_GOOD_OLD_REV) {
2242                         fprintf(stderr, "%s",
2243                                 _("Sparse superblocks not supported "
2244                                   "with revision 0 filesystems\n"));
2245                         exit(1);
2246                 }
2247                 ext2fs_set_feature_sparse_super(&fs_param);
2248         } else if (s_opt == 0)
2249                 ext2fs_clear_feature_sparse_super(&fs_param);
2250
2251         if (journal_size != 0) {
2252                 if (r_opt == EXT2_GOOD_OLD_REV) {
2253                         fprintf(stderr, "%s", _("Journals not supported with "
2254                                                 "revision 0 filesystems\n"));
2255                         exit(1);
2256                 }
2257                 ext2fs_set_feature_journal(&fs_param);
2258         }
2259
2260         /* Get reserved_ratio from profile if not specified on cmd line. */
2261         if (reserved_ratio < 0.0) {
2262                 reserved_ratio = get_double_from_profile(
2263                                         fs_types, "reserved_ratio", 5.0);
2264                 if (reserved_ratio > 50 || reserved_ratio < 0) {
2265                         com_err(program_name, 0,
2266                                 _("invalid reserved blocks percent - %lf"),
2267                                 reserved_ratio);
2268                         exit(1);
2269                 }
2270         }
2271
2272         if (ext2fs_has_feature_journal_dev(&fs_param)) {
2273                 reserved_ratio = 0;
2274                 fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
2275                 fs_param.s_feature_compat = 0;
2276                 fs_param.s_feature_ro_compat &=
2277                                         EXT4_FEATURE_RO_COMPAT_METADATA_CSUM;
2278         }
2279
2280         /* Check the user's mkfs options for 64bit */
2281         if (ext2fs_has_feature_64bit(&fs_param) &&
2282             !ext2fs_has_feature_extents(&fs_param)) {
2283                 printf("%s", _("Extents MUST be enabled for a 64-bit "
2284                                "filesystem.  Pass -O extents to rectify.\n"));
2285                 exit(1);
2286         }
2287
2288         /* Set first meta blockgroup via an environment variable */
2289         /* (this is mostly for debugging purposes) */
2290         if (ext2fs_has_feature_meta_bg(&fs_param) &&
2291             (tmp = getenv("MKE2FS_FIRST_META_BG")))
2292                 fs_param.s_first_meta_bg = atoi(tmp);
2293         if (ext2fs_has_feature_bigalloc(&fs_param)) {
2294                 if (!cluster_size)
2295                         cluster_size = get_int_from_profile(fs_types,
2296                                                             "cluster_size",
2297                                                             blocksize*16);
2298                 fs_param.s_log_cluster_size =
2299                         int_log2(cluster_size >> EXT2_MIN_CLUSTER_LOG_SIZE);
2300                 if (fs_param.s_log_cluster_size &&
2301                     fs_param.s_log_cluster_size < fs_param.s_log_block_size) {
2302                         com_err(program_name, 0, "%s",
2303                                 _("The cluster size may not be "
2304                                   "smaller than the block size.\n"));
2305                         exit(1);
2306                 }
2307         } else if (cluster_size) {
2308                 com_err(program_name, 0, "%s",
2309                         _("specifying a cluster size requires the "
2310                           "bigalloc feature"));
2311                 exit(1);
2312         } else
2313                 fs_param.s_log_cluster_size = fs_param.s_log_block_size;
2314
2315         if (inode_ratio == 0) {
2316                 inode_ratio = get_int_from_profile(fs_types, "inode_ratio",
2317                                                    8192);
2318                 if (inode_ratio < blocksize)
2319                         inode_ratio = blocksize;
2320                 if (inode_ratio < EXT2_CLUSTER_SIZE(&fs_param))
2321                         inode_ratio = EXT2_CLUSTER_SIZE(&fs_param);
2322         }
2323
2324 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
2325         retval = get_device_geometry(device_name, blocksize,
2326                                      psector_size, &dev_param);
2327         if (retval < 0) {
2328                 fprintf(stderr,
2329                         _("warning: Unable to get device geometry for %s\n"),
2330                         device_name);
2331         } else {
2332                 /* setting stripe/stride to blocksize is pointless */
2333                 if (dev_param.min_io > blocksize)
2334                         fs_param.s_raid_stride = dev_param.min_io / blocksize;
2335                 if (dev_param.opt_io > blocksize) {
2336                         fs_param.s_raid_stripe_width =
2337                                                 dev_param.opt_io / blocksize;
2338                 }
2339
2340                 if (dev_param.alignment_offset) {
2341                         printf(_("%s alignment is offset by %lu bytes.\n"),
2342                                device_name, dev_param.alignment_offset);
2343                         printf(_("This may result in very poor performance, "
2344                                   "(re)-partitioning suggested.\n"));
2345                 }
2346
2347                 if (dev_param.dax && blocksize != sys_page_size) {
2348                         fprintf(stderr,
2349                                 _("%s is capable of DAX but current block size "
2350                                   "%u is different from system page size %u so "
2351                                   "filesystem will not support DAX.\n"),
2352                                 device_name, blocksize, sys_page_size);
2353                 }
2354         }
2355 #endif
2356
2357         num_backups = get_int_from_profile(fs_types, "num_backup_sb", 2);
2358
2359         blocksize = EXT2_BLOCK_SIZE(&fs_param);
2360
2361         /*
2362          * Initialize s_desc_size so that the parse_extended_opts()
2363          * can correctly handle "-E resize=NNN" if the 64-bit option
2364          * is set.
2365          */
2366         if (ext2fs_has_feature_64bit(&fs_param))
2367                 fs_param.s_desc_size = EXT2_MIN_DESC_SIZE_64BIT;
2368
2369         /* This check should happen beyond the last assignment to blocksize */
2370         if (blocksize > sys_page_size) {
2371                 if (!force) {
2372                         com_err(program_name, 0,
2373                                 _("%d-byte blocks too big for system (max %d)"),
2374                                 blocksize, sys_page_size);
2375                         proceed_question(proceed_delay);
2376                 }
2377                 fprintf(stderr, _("Warning: %d-byte blocks too big for system "
2378                                   "(max %d), forced to continue\n"),
2379                         blocksize, sys_page_size);
2380         }
2381
2382         /* Metadata checksumming wasn't totally stable before 3.18. */
2383         if (is_before_linux_ver(3, 18, 0) &&
2384             ext2fs_has_feature_metadata_csum(&fs_param))
2385                 fprintf(stderr, _("Suggestion: Use Linux kernel >= 3.18 for "
2386                         "improved stability of the metadata and journal "
2387                         "checksum features.\n"));
2388
2389         /*
2390          * On newer kernels we do have lazy_itable_init support. So pick the
2391          * right default in case ext4 module is not loaded.
2392          */
2393         if (is_before_linux_ver(2, 6, 37))
2394                 lazy_itable_init = 0;
2395         else
2396                 lazy_itable_init = 1;
2397
2398         if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0)
2399                 lazy_itable_init = 1;
2400
2401         lazy_itable_init = get_bool_from_profile(fs_types,
2402                                                  "lazy_itable_init",
2403                                                  lazy_itable_init);
2404         discard = get_bool_from_profile(fs_types, "discard" , discard);
2405         journal_flags |= get_bool_from_profile(fs_types,
2406                                                "lazy_journal_init", 0) ?
2407                                                EXT2_MKJOURNAL_LAZYINIT : 0;
2408         journal_flags |= EXT2_MKJOURNAL_NO_MNT_CHECK;
2409
2410         if (!journal_location_string)
2411                 journal_location_string = get_string_from_profile(fs_types,
2412                                                 "journal_location", "");
2413         if ((journal_location == ~0ULL) && journal_location_string &&
2414             *journal_location_string)
2415                 journal_location = parse_num_blocks2(journal_location_string,
2416                                                 fs_param.s_log_block_size);
2417         free(journal_location_string);
2418
2419         packed_meta_blocks = get_bool_from_profile(fs_types,
2420                                                    "packed_meta_blocks", 0);
2421         if (packed_meta_blocks)
2422                 journal_location = 0;
2423
2424         if (ext2fs_has_feature_casefold(&fs_param)) {
2425                 char *ef, *en = get_string_from_profile(fs_types,
2426                                                         "encoding", "utf8");
2427                 int encoding = e2p_str2encoding(en);
2428
2429                 if (encoding < 0) {
2430                         com_err(program_name, 0,
2431                                 _("Unknown filename encoding from profile: %s"),
2432                                 en);
2433                         exit(1);
2434                 }
2435                 free(en);
2436                 fs_param.s_encoding = encoding;
2437                 ef = get_string_from_profile(fs_types, "encoding_flags", NULL);
2438                 if (ef) {
2439                         if (e2p_str2encoding_flags(encoding, ef,
2440                                         &fs_param.s_encoding_flags) < 0) {
2441                                 com_err(program_name, 0,
2442                         _("Unknown encoding flags from profile: %s"), ef);
2443                                 exit(1);
2444                         }
2445                         free(ef);
2446                 } else
2447                         fs_param.s_encoding_flags =
2448                                 e2p_get_encoding_flags(encoding);
2449         }
2450
2451         /* Get options from profile */
2452         for (cpp = fs_types; *cpp; cpp++) {
2453                 tmp = NULL;
2454                 profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp);
2455                         if (tmp && *tmp)
2456                                 parse_extended_opts(&fs_param, tmp);
2457                         free(tmp);
2458         }
2459
2460         if (extended_opts)
2461                 parse_extended_opts(&fs_param, extended_opts);
2462
2463         if (explicit_fssize == 0 && offset > 0) {
2464                 fs_blocks_count -= offset / EXT2_BLOCK_SIZE(&fs_param);
2465                 ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2466                 fprintf(stderr,
2467                         _("\nWarning: offset specified without an "
2468                           "explicit file system size.\n"
2469                           "Creating a file system with %llu blocks "
2470                           "but this might\n"
2471                           "not be what you want.\n\n"),
2472                         (unsigned long long) fs_blocks_count);
2473         }
2474
2475         if (quotatype_bits & QUOTA_PRJ_BIT)
2476                 ext2fs_set_feature_project(&fs_param);
2477
2478         if (ext2fs_has_feature_project(&fs_param)) {
2479                 quotatype_bits |= QUOTA_PRJ_BIT;
2480                 if (inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2481                         com_err(program_name, 0,
2482                                 _("%d byte inodes are too small for "
2483                                   "project quota"),
2484                                 inode_size);
2485                         exit(1);
2486                 }
2487                 if (inode_size == 0) {
2488                         inode_size = get_int_from_profile(fs_types,
2489                                                           "inode_size", 0);
2490                         if (inode_size <= EXT2_GOOD_OLD_INODE_SIZE*2)
2491                                 inode_size = EXT2_GOOD_OLD_INODE_SIZE*2;
2492                 }
2493         }
2494
2495         /* Don't allow user to set both metadata_csum and uninit_bg bits. */
2496         if (ext2fs_has_feature_metadata_csum(&fs_param) &&
2497             ext2fs_has_feature_gdt_csum(&fs_param))
2498                 ext2fs_clear_feature_gdt_csum(&fs_param);
2499
2500         /* Can't support bigalloc feature without extents feature */
2501         if (ext2fs_has_feature_bigalloc(&fs_param) &&
2502             !ext2fs_has_feature_extents(&fs_param)) {
2503                 com_err(program_name, 0, "%s",
2504                         _("Can't support bigalloc feature without "
2505                           "extents feature"));
2506                 exit(1);
2507         }
2508
2509         if (ext2fs_has_feature_meta_bg(&fs_param) &&
2510             ext2fs_has_feature_resize_inode(&fs_param)) {
2511                 fprintf(stderr, "%s", _("The resize_inode and meta_bg "
2512                                         "features are not compatible.\n"
2513                                         "They can not be both enabled "
2514                                         "simultaneously.\n"));
2515                 exit(1);
2516         }
2517
2518         if (!quiet && ext2fs_has_feature_bigalloc(&fs_param))
2519                 fprintf(stderr, "%s", _("\nWarning: the bigalloc feature is "
2520                                   "still under development\n"
2521                                   "See https://ext4.wiki.kernel.org/"
2522                                   "index.php/Bigalloc for more information\n\n"));
2523
2524         /*
2525          * Since sparse_super is the default, we would only have a problem
2526          * here if it was explicitly disabled.
2527          */
2528         if (ext2fs_has_feature_resize_inode(&fs_param) &&
2529             !ext2fs_has_feature_sparse_super(&fs_param)) {
2530                 com_err(program_name, 0, "%s",
2531                         _("reserved online resize blocks not supported "
2532                           "on non-sparse filesystem"));
2533                 exit(1);
2534         }
2535
2536         if (fs_param.s_blocks_per_group) {
2537                 if (fs_param.s_blocks_per_group < 256 ||
2538                     fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) {
2539                         com_err(program_name, 0, "%s",
2540                                 _("blocks per group count out of range"));
2541                         exit(1);
2542                 }
2543         }
2544
2545         /*
2546          * If the bigalloc feature is enabled, then the -g option will
2547          * specify the number of clusters per group.
2548          */
2549         if (ext2fs_has_feature_bigalloc(&fs_param)) {
2550                 fs_param.s_clusters_per_group = fs_param.s_blocks_per_group;
2551                 fs_param.s_blocks_per_group = 0;
2552         }
2553
2554         if (inode_size == 0)
2555                 inode_size = get_int_from_profile(fs_types, "inode_size", 0);
2556         if (!flex_bg_size && ext2fs_has_feature_flex_bg(&fs_param))
2557                 flex_bg_size = get_uint_from_profile(fs_types,
2558                                                      "flex_bg_size", 16);
2559         if (flex_bg_size) {
2560                 if (!ext2fs_has_feature_flex_bg(&fs_param)) {
2561                         com_err(program_name, 0, "%s",
2562                                 _("Flex_bg feature not enabled, so "
2563                                   "flex_bg size may not be specified"));
2564                         exit(1);
2565                 }
2566                 fs_param.s_log_groups_per_flex = int_log2(flex_bg_size);
2567         }
2568
2569         if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) {
2570                 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
2571                     inode_size > EXT2_BLOCK_SIZE(&fs_param) ||
2572                     inode_size & (inode_size - 1)) {
2573                         com_err(program_name, 0,
2574                                 _("invalid inode size %d (min %d/max %d)"),
2575                                 inode_size, EXT2_GOOD_OLD_INODE_SIZE,
2576                                 blocksize);
2577                         exit(1);
2578                 }
2579                 fs_param.s_inode_size = inode_size;
2580         }
2581
2582         /*
2583          * If inode size is 128 and inline data is enabled, we need
2584          * to notify users that inline data will never be useful.
2585          */
2586         if (ext2fs_has_feature_inline_data(&fs_param) &&
2587             fs_param.s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2588                 com_err(program_name, 0,
2589                         _("%d byte inodes are too small for inline data; "
2590                           "specify larger size"),
2591                         fs_param.s_inode_size);
2592                 exit(1);
2593         }
2594
2595         /* Make sure number of inodes specified will fit in 32 bits */
2596         if (num_inodes == 0) {
2597                 unsigned long long n;
2598                 n = ext2fs_blocks_count(&fs_param) * blocksize / inode_ratio;
2599                 if (n > MAX_32_NUM) {
2600                         if (ext2fs_has_feature_64bit(&fs_param))
2601                                 num_inodes = MAX_32_NUM;
2602                         else {
2603                                 com_err(program_name, 0,
2604                                         _("too many inodes (%llu), raise "
2605                                           "inode ratio?"), n);
2606                                 exit(1);
2607                         }
2608                 }
2609         } else if (num_inodes > MAX_32_NUM) {
2610                 com_err(program_name, 0,
2611                         _("too many inodes (%llu), specify < 2^32 inodes"),
2612                           num_inodes);
2613                 exit(1);
2614         }
2615         /*
2616          * Calculate number of inodes based on the inode ratio
2617          */
2618         fs_param.s_inodes_count = num_inodes ? num_inodes :
2619                 (ext2fs_blocks_count(&fs_param) * blocksize) / inode_ratio;
2620
2621         if ((((unsigned long long)fs_param.s_inodes_count) *
2622              (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >=
2623             ((ext2fs_blocks_count(&fs_param)) *
2624              EXT2_BLOCK_SIZE(&fs_param))) {
2625                 com_err(program_name, 0, _("inode_size (%u) * inodes_count "
2626                                           "(%u) too big for a\n\t"
2627                                           "filesystem with %llu blocks, "
2628                                           "specify higher inode_ratio (-i)\n\t"
2629                                           "or lower inode count (-N).\n"),
2630                         inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE,
2631                         fs_param.s_inodes_count,
2632                         (unsigned long long) ext2fs_blocks_count(&fs_param));
2633                 exit(1);
2634         }
2635
2636         /*
2637          * Calculate number of blocks to reserve
2638          */
2639         ext2fs_r_blocks_count_set(&fs_param, reserved_ratio *
2640                                   ext2fs_blocks_count(&fs_param) / 100.0);
2641
2642         if (ext2fs_has_feature_sparse_super2(&fs_param)) {
2643                 if (num_backups >= 1)
2644                         fs_param.s_backup_bgs[0] = 1;
2645                 if (num_backups >= 2)
2646                         fs_param.s_backup_bgs[1] = ~0;
2647         }
2648
2649         free(fs_type);
2650         free(usage_types);
2651 }
2652
2653 static int should_do_undo(const char *name)
2654 {
2655         errcode_t retval;
2656         io_channel channel;
2657         __u16   s_magic;
2658         struct ext2_super_block super;
2659         io_manager manager = unix_io_manager;
2660         int csum_flag, force_undo;
2661
2662         csum_flag = ext2fs_has_feature_metadata_csum(&fs_param) ||
2663                     ext2fs_has_feature_gdt_csum(&fs_param);
2664         force_undo = get_int_from_profile(fs_types, "force_undo", 0);
2665         if (!force_undo && (!csum_flag || !lazy_itable_init))
2666                 return 0;
2667
2668         retval = manager->open(name, IO_FLAG_EXCLUSIVE,  &channel);
2669         if (retval) {
2670                 /*
2671                  * We don't handle error cases instead we
2672                  * declare that the file system doesn't exist
2673                  * and let the rest of mke2fs take care of
2674                  * error
2675                  */
2676                 retval = 0;
2677                 goto open_err_out;
2678         }
2679
2680         io_channel_set_blksize(channel, SUPERBLOCK_OFFSET);
2681         retval = io_channel_read_blk64(channel, 1, -SUPERBLOCK_SIZE, &super);
2682         if (retval) {
2683                 retval = 0;
2684                 goto err_out;
2685         }
2686
2687 #if defined(WORDS_BIGENDIAN)
2688         s_magic = ext2fs_swab16(super.s_magic);
2689 #else
2690         s_magic = super.s_magic;
2691 #endif
2692
2693         if (s_magic == EXT2_SUPER_MAGIC)
2694                 retval = 1;
2695
2696 err_out:
2697         io_channel_close(channel);
2698
2699 open_err_out:
2700
2701         return retval;
2702 }
2703
2704 static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr)
2705 {
2706         errcode_t retval = ENOMEM;
2707         char *tdb_dir = NULL, *tdb_file = NULL;
2708         char *dev_name, *tmp_name;
2709         int free_tdb_dir = 0;
2710
2711         /* (re)open a specific undo file */
2712         if (undo_file && undo_file[0] != 0) {
2713                 retval = set_undo_io_backing_manager(*io_ptr);
2714                 if (retval)
2715                         goto err;
2716                 *io_ptr = undo_io_manager;
2717                 retval = set_undo_io_backup_file(undo_file);
2718                 if (retval)
2719                         goto err;
2720                 printf(_("Overwriting existing filesystem; this can be undone "
2721                          "using the command:\n"
2722                          "    e2undo %s %s\n\n"), undo_file, name);
2723                 return retval;
2724         }
2725
2726         /*
2727          * Configuration via a conf file would be
2728          * nice
2729          */
2730         tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
2731         if (!tdb_dir) {
2732                 profile_get_string(profile, "defaults",
2733                                    "undo_dir", 0, "/var/lib/e2fsprogs",
2734                                    &tdb_dir);
2735                 free_tdb_dir = 1;
2736         }
2737
2738         if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
2739             access(tdb_dir, W_OK)) {
2740                 if (free_tdb_dir)
2741                         free(tdb_dir);
2742                 return 0;
2743         }
2744
2745         tmp_name = strdup(name);
2746         if (!tmp_name)
2747                 goto errout;
2748         dev_name = basename(tmp_name);
2749         tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
2750         if (!tdb_file) {
2751                 free(tmp_name);
2752                 goto errout;
2753         }
2754         sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, dev_name);
2755         free(tmp_name);
2756
2757         if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
2758                 retval = errno;
2759                 com_err(program_name, retval,
2760                         _("while trying to delete %s"), tdb_file);
2761                 goto errout;
2762         }
2763
2764         retval = set_undo_io_backing_manager(*io_ptr);
2765         if (retval)
2766                 goto errout;
2767         *io_ptr = undo_io_manager;
2768         retval = set_undo_io_backup_file(tdb_file);
2769         if (retval)
2770                 goto errout;
2771         printf(_("Overwriting existing filesystem; this can be undone "
2772                  "using the command:\n"
2773                  "    e2undo %s %s\n\n"), tdb_file, name);
2774
2775         if (free_tdb_dir)
2776                 free(tdb_dir);
2777         free(tdb_file);
2778         return 0;
2779
2780 errout:
2781         if (free_tdb_dir)
2782                 free(tdb_dir);
2783         free(tdb_file);
2784 err:
2785         com_err(program_name, retval, "%s",
2786                 _("while trying to setup undo file\n"));
2787         return retval;
2788 }
2789
2790 static int mke2fs_discard_device(ext2_filsys fs)
2791 {
2792         struct ext2fs_numeric_progress_struct progress;
2793         blk64_t blocks = ext2fs_blocks_count(fs->super);
2794         blk64_t count = DISCARD_STEP_MB;
2795         blk64_t cur;
2796         int retval = 0;
2797
2798         /*
2799          * Let's try if discard really works on the device, so
2800          * we do not print numeric progress resulting in failure
2801          * afterwards.
2802          */
2803         retval = io_channel_discard(fs->io, 0, fs->blocksize);
2804         if (retval)
2805                 return retval;
2806         cur = fs->blocksize;
2807
2808         count *= (1024 * 1024);
2809         count /= fs->blocksize;
2810
2811         ext2fs_numeric_progress_init(fs, &progress,
2812                                      _("Discarding device blocks: "),
2813                                      blocks);
2814         while (cur < blocks) {
2815                 ext2fs_numeric_progress_update(fs, &progress, cur);
2816
2817                 if (cur + count > blocks)
2818                         count = blocks - cur;
2819
2820                 retval = io_channel_discard(fs->io, cur, count);
2821                 if (retval)
2822                         break;
2823                 cur += count;
2824         }
2825
2826         if (retval) {
2827                 ext2fs_numeric_progress_close(fs, &progress,
2828                                       _("failed - "));
2829                 if (!quiet)
2830                         printf("%s\n",error_message(retval));
2831         } else
2832                 ext2fs_numeric_progress_close(fs, &progress,
2833                                       _("done                            \n"));
2834
2835         return retval;
2836 }
2837
2838 static void fix_cluster_bg_counts(ext2_filsys fs)
2839 {
2840         blk64_t         block, num_blocks, last_block, next;
2841         blk64_t         tot_free = 0;
2842         errcode_t       retval;
2843         dgrp_t          group = 0;
2844         int             grp_free = 0;
2845
2846         num_blocks = ext2fs_blocks_count(fs->super);
2847         last_block = ext2fs_group_last_block2(fs, group);
2848         block = fs->super->s_first_data_block;
2849         while (block < num_blocks) {
2850                 retval = ext2fs_find_first_zero_block_bitmap2(fs->block_map,
2851                                                 block, last_block, &next);
2852                 if (retval == 0)
2853                         block = next;
2854                 else {
2855                         block = last_block + 1;
2856                         goto next_bg;
2857                 }
2858
2859                 retval = ext2fs_find_first_set_block_bitmap2(fs->block_map,
2860                                                 block, last_block, &next);
2861                 if (retval)
2862                         next = last_block + 1;
2863                 grp_free += EXT2FS_NUM_B2C(fs, next - block);
2864                 tot_free += next - block;
2865                 block = next;
2866
2867                 if (block > last_block) {
2868                 next_bg:
2869                         ext2fs_bg_free_blocks_count_set(fs, group, grp_free);
2870                         ext2fs_group_desc_csum_set(fs, group);
2871                         grp_free = 0;
2872                         group++;
2873                         last_block = ext2fs_group_last_block2(fs, group);
2874                 }
2875         }
2876         ext2fs_free_blocks_count_set(fs->super, tot_free);
2877 }
2878
2879 static int create_quota_inodes(ext2_filsys fs)
2880 {
2881         quota_ctx_t qctx;
2882         errcode_t retval;
2883
2884         retval = quota_init_context(&qctx, fs, quotatype_bits);
2885         if (retval) {
2886                 com_err(program_name, retval,
2887                         _("while initializing quota context"));
2888                 exit(1);
2889         }
2890         quota_compute_usage(qctx);
2891         retval = quota_write_inode(qctx, quotatype_bits);
2892         if (retval) {
2893                 com_err(program_name, retval,
2894                         _("while writing quota inodes"));
2895                 exit(1);
2896         }
2897         quota_release_context(&qctx);
2898
2899         return 0;
2900 }
2901
2902 static errcode_t set_error_behavior(ext2_filsys fs)
2903 {
2904         char    *arg = NULL;
2905         short   errors = fs->super->s_errors;
2906
2907         arg = get_string_from_profile(fs_types, "errors", NULL);
2908         if (arg == NULL)
2909                 goto try_user;
2910
2911         if (strcmp(arg, "continue") == 0)
2912                 errors = EXT2_ERRORS_CONTINUE;
2913         else if (strcmp(arg, "remount-ro") == 0)
2914                 errors = EXT2_ERRORS_RO;
2915         else if (strcmp(arg, "panic") == 0)
2916                 errors = EXT2_ERRORS_PANIC;
2917         else {
2918                 com_err(program_name, 0,
2919                         _("bad error behavior in profile - %s"),
2920                         arg);
2921                 free(arg);
2922                 return EXT2_ET_INVALID_ARGUMENT;
2923         }
2924         free(arg);
2925
2926 try_user:
2927         if (errors_behavior)
2928                 errors = errors_behavior;
2929
2930         fs->super->s_errors = errors;
2931         return 0;
2932 }
2933
2934 int main (int argc, char *argv[])
2935 {
2936         errcode_t       retval = 0;
2937         ext2_filsys     fs;
2938         badblocks_list  bb_list = 0;
2939         badblocks_iterate       bb_iter;
2940         blk_t           blk;
2941         struct ext2fs_journal_params    jparams = {0};
2942         unsigned int    i, checkinterval;
2943         int             max_mnt_count;
2944         int             val, hash_alg;
2945         int             flags;
2946         int             old_bitmaps;
2947         io_manager      io_ptr;
2948         char            opt_string[40];
2949         char            *hash_alg_str;
2950         int             itable_zeroed = 0;
2951         blk64_t         overhead;
2952
2953 #ifdef ENABLE_NLS
2954         setlocale(LC_MESSAGES, "");
2955         setlocale(LC_CTYPE, "");
2956         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
2957         textdomain(NLS_CAT_NAME);
2958         set_com_err_gettext(gettext);
2959 #endif
2960         PRS(argc, argv);
2961
2962 #ifdef CONFIG_TESTIO_DEBUG
2963         if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
2964                 io_ptr = test_io_manager;
2965                 test_io_backing_manager = unix_io_manager;
2966         } else
2967 #endif
2968                 io_ptr = unix_io_manager;
2969
2970         if (undo_file != NULL || should_do_undo(device_name)) {
2971                 retval = mke2fs_setup_tdb(device_name, &io_ptr);
2972                 if (retval)
2973                         exit(1);
2974         }
2975
2976         /*
2977          * Initialize the superblock....
2978          */
2979         flags = EXT2_FLAG_EXCLUSIVE;
2980         if (direct_io)
2981                 flags |= EXT2_FLAG_DIRECT_IO;
2982         profile_get_boolean(profile, "options", "old_bitmaps", 0, 0,
2983                             &old_bitmaps);
2984         if (!old_bitmaps)
2985                 flags |= EXT2_FLAG_64BITS;
2986         /*
2987          * By default, we print how many inode tables or block groups
2988          * or whatever we've written so far.  The quiet flag disables
2989          * this, along with a lot of other output.
2990          */
2991         if (!quiet)
2992                 flags |= EXT2_FLAG_PRINT_PROGRESS;
2993         if (android_sparse_file) {
2994                 char *android_sparse_params = malloc(strlen(device_name) + 48);
2995
2996                 if (!android_sparse_params) {
2997                         com_err(program_name, ENOMEM, "%s",
2998                                 _("in malloc for android_sparse_params"));
2999                         exit(1);
3000                 }
3001                 sprintf(android_sparse_params, "(%s):%u:%u",
3002                          device_name, fs_param.s_blocks_count,
3003                          1024 << fs_param.s_log_block_size);
3004                 retval = ext2fs_initialize(android_sparse_params, flags,
3005                                            &fs_param, sparse_io_manager, &fs);
3006                 free(android_sparse_params);
3007         } else
3008                 retval = ext2fs_initialize(device_name, flags, &fs_param,
3009                                            io_ptr, &fs);
3010         if (retval) {
3011                 com_err(device_name, retval, "%s",
3012                         _("while setting up superblock"));
3013                 exit(1);
3014         }
3015         fs->progress_ops = &ext2fs_numeric_progress_ops;
3016
3017         /* Set the error behavior */
3018         retval = set_error_behavior(fs);
3019         if (retval)
3020                 usage();
3021
3022         /* Check the user's mkfs options for metadata checksumming */
3023         if (!quiet &&
3024             !ext2fs_has_feature_journal_dev(fs->super) &&
3025             ext2fs_has_feature_metadata_csum(fs->super)) {
3026                 if (!ext2fs_has_feature_extents(fs->super))
3027                         printf("%s",
3028                                _("Extents are not enabled.  The file extent "
3029                                  "tree can be checksummed, whereas block maps "
3030                                  "cannot.  Not enabling extents reduces the "
3031                                  "coverage of metadata checksumming.  "
3032                                  "Pass -O extents to rectify.\n"));
3033                 if (!ext2fs_has_feature_64bit(fs->super))
3034                         printf("%s",
3035                                _("64-bit filesystem support is not enabled.  "
3036                                  "The larger fields afforded by this feature "
3037                                  "enable full-strength checksumming.  "
3038                                  "Pass -O 64bit to rectify.\n"));
3039         }
3040
3041         if (ext2fs_has_feature_csum_seed(fs->super) &&
3042             !ext2fs_has_feature_metadata_csum(fs->super)) {
3043                 printf("%s", _("The metadata_csum_seed feature "
3044                                "requires the metadata_csum feature.\n"));
3045                 exit(1);
3046         }
3047
3048         /* Calculate journal blocks */
3049         if (!journal_device && ((journal_size) ||
3050             ext2fs_has_feature_journal(&fs_param)))
3051                 figure_journal_size(&jparams, journal_size, journal_fc_size, fs);
3052
3053         sprintf(opt_string, "tdb_data_size=%d", fs->blocksize <= 4096 ?
3054                 32768 : fs->blocksize * 8);
3055         io_channel_set_options(fs->io, opt_string);
3056         if (offset) {
3057                 sprintf(opt_string, "offset=%llu", offset);
3058                 io_channel_set_options(fs->io, opt_string);
3059         }
3060
3061         /* Can't undo discard ... */
3062         if (!noaction && discard && dev_size && (io_ptr != undo_io_manager)) {
3063                 retval = mke2fs_discard_device(fs);
3064                 if (!retval && io_channel_discard_zeroes_data(fs->io)) {
3065                         if (verbose)
3066                                 printf("%s",
3067                                        _("Discard succeeded and will return "
3068                                          "0s - skipping inode table wipe\n"));
3069                         lazy_itable_init = 1;
3070                         itable_zeroed = 1;
3071                         zero_hugefile = 0;
3072                 }
3073         }
3074
3075         if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS)
3076                 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
3077
3078         if (ext2fs_has_feature_flex_bg(&fs_param) ||
3079             ext2fs_has_feature_huge_file(&fs_param) ||
3080             ext2fs_has_feature_gdt_csum(&fs_param) ||
3081             ext2fs_has_feature_dir_nlink(&fs_param) ||
3082             ext2fs_has_feature_metadata_csum(&fs_param) ||
3083             ext2fs_has_feature_extra_isize(&fs_param))
3084                 fs->super->s_kbytes_written = 1;
3085
3086         /*
3087          * Wipe out the old on-disk superblock
3088          */
3089         if (!noaction)
3090                 zap_sector(fs, 2, 6);
3091
3092         /*
3093          * Parse or generate a UUID for the filesystem
3094          */
3095         if (fs_uuid) {
3096                 if ((strcasecmp(fs_uuid, "null") == 0) ||
3097                     (strcasecmp(fs_uuid, "clear") == 0)) {
3098                         uuid_clear(fs->super->s_uuid);
3099                 } else if (strcasecmp(fs_uuid, "time") == 0) {
3100                         uuid_generate_time(fs->super->s_uuid);
3101                 } else if (strcasecmp(fs_uuid, "random") == 0) {
3102                         uuid_generate(fs->super->s_uuid);
3103                 } else if (uuid_parse(fs_uuid, fs->super->s_uuid) != 0) {
3104                         com_err(device_name, 0, "could not parse UUID: %s\n",
3105                                 fs_uuid);
3106                         exit(1);
3107                 }
3108         } else
3109                 uuid_generate(fs->super->s_uuid);
3110
3111         if (ext2fs_has_feature_csum_seed(fs->super))
3112                 fs->super->s_checksum_seed = ext2fs_crc32c_le(~0,
3113                                 fs->super->s_uuid, sizeof(fs->super->s_uuid));
3114
3115         ext2fs_init_csum_seed(fs);
3116
3117         /*
3118          * Initialize the directory index variables
3119          */
3120         hash_alg_str = get_string_from_profile(fs_types, "hash_alg",
3121                                                "half_md4");
3122         hash_alg = e2p_string2hash(hash_alg_str);
3123         free(hash_alg_str);
3124         fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg :
3125                 EXT2_HASH_HALF_MD4;
3126
3127         if (memcmp(fs_param.s_hash_seed, zero_buf,
3128                 sizeof(fs_param.s_hash_seed)) != 0) {
3129                 memcpy(fs->super->s_hash_seed, fs_param.s_hash_seed,
3130                         sizeof(fs->super->s_hash_seed));
3131         } else
3132                 uuid_generate((unsigned char *) fs->super->s_hash_seed);
3133
3134         /*
3135          * Periodic checks can be enabled/disabled via config file.
3136          * Note we override the kernel include file's idea of what the default
3137          * check interval (never) should be.  It's a good idea to check at
3138          * least *occasionally*, specially since servers will never rarely get
3139          * to reboot, since Linux is so robust these days.  :-)
3140          *
3141          * 180 days (six months) seems like a good value.
3142          */
3143 #ifdef EXT2_DFL_CHECKINTERVAL
3144 #undef EXT2_DFL_CHECKINTERVAL
3145 #endif
3146 #define EXT2_DFL_CHECKINTERVAL (86400L * 180L)
3147
3148         if (get_bool_from_profile(fs_types, "enable_periodic_fsck", 0)) {
3149                 fs->super->s_checkinterval = EXT2_DFL_CHECKINTERVAL;
3150                 fs->super->s_max_mnt_count = EXT2_DFL_MAX_MNT_COUNT;
3151                 /*
3152                  * Add "jitter" to the superblock's check interval so that we
3153                  * don't check all the filesystems at the same time.  We use a
3154                  * kludgy hack of using the UUID to derive a random jitter value
3155                  */
3156                 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++)
3157                         val += fs->super->s_uuid[i];
3158                 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
3159         } else
3160                 fs->super->s_max_mnt_count = -1;
3161
3162         /*
3163          * Override the creator OS, if applicable
3164          */
3165         if (creator_os && !set_os(fs->super, creator_os)) {
3166                 com_err (program_name, 0, _("unknown os - %s"), creator_os);
3167                 exit(1);
3168         }
3169
3170         /*
3171          * For the Hurd, we will turn off filetype since it doesn't
3172          * support it.
3173          */
3174         if (fs->super->s_creator_os == EXT2_OS_HURD)
3175                 ext2fs_clear_feature_filetype(fs->super);
3176
3177         /*
3178          * Set the volume label...
3179          */
3180         if (volume_label) {
3181                 memset(fs->super->s_volume_name, 0,
3182                        sizeof(fs->super->s_volume_name));
3183                 strncpy((char *) fs->super->s_volume_name, volume_label,
3184                         sizeof(fs->super->s_volume_name));
3185         }
3186
3187         /*
3188          * Set the last mount directory
3189          */
3190         if (mount_dir) {
3191                 memset(fs->super->s_last_mounted, 0,
3192                        sizeof(fs->super->s_last_mounted));
3193                 strncpy((char *) fs->super->s_last_mounted, mount_dir,
3194                         sizeof(fs->super->s_last_mounted));
3195         }
3196
3197         /* Set current default encryption algorithms for data and
3198          * filename encryption */
3199         if (ext2fs_has_feature_encrypt(fs->super)) {
3200                 fs->super->s_encrypt_algos[0] =
3201                         EXT4_ENCRYPTION_MODE_AES_256_XTS;
3202                 fs->super->s_encrypt_algos[1] =
3203                         EXT4_ENCRYPTION_MODE_AES_256_CTS;
3204         }
3205
3206         if (ext2fs_has_feature_metadata_csum(fs->super))
3207                 fs->super->s_checksum_type = EXT2_CRC32C_CHKSUM;
3208
3209         if (!quiet || noaction)
3210                 show_stats(fs);
3211
3212         if (noaction)
3213                 exit(0);
3214
3215         if (ext2fs_has_feature_journal_dev(fs->super)) {
3216                 create_journal_dev(fs);
3217                 printf("\n");
3218                 exit(ext2fs_close_free(&fs) ? 1 : 0);
3219         }
3220
3221         if (bad_blocks_filename)
3222                 read_bb_file(fs, &bb_list, bad_blocks_filename);
3223         if (cflag)
3224                 test_disk(fs, &bb_list);
3225         handle_bad_blocks(fs, bb_list);
3226
3227         fs->stride = fs_stride = fs->super->s_raid_stride;
3228         if (!quiet)
3229                 printf("%s", _("Allocating group tables: "));
3230         if (ext2fs_has_feature_flex_bg(fs->super) &&
3231             packed_meta_blocks)
3232                 retval = packed_allocate_tables(fs);
3233         else
3234                 retval = ext2fs_allocate_tables(fs);
3235         if (retval) {
3236                 com_err(program_name, retval, "%s",
3237                         _("while trying to allocate filesystem tables"));
3238                 exit(1);
3239         }
3240         if (!quiet)
3241                 printf("%s", _("done                            \n"));
3242
3243         /*
3244          * Unmark bad blocks to calculate overhead, because metadata
3245          * blocks and bad blocks can land on the same allocation cluster.
3246          */
3247         if (bb_list) {
3248                 retval = ext2fs_badblocks_list_iterate_begin(bb_list,
3249                                                              &bb_iter);
3250                 if (retval) {
3251                         com_err("ext2fs_badblocks_list_iterate_begin", retval,
3252                                 "%s", _("while unmarking bad blocks"));
3253                         exit(1);
3254                 }
3255                 while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
3256                         ext2fs_unmark_block_bitmap2(fs->block_map, blk);
3257                 ext2fs_badblocks_list_iterate_end(bb_iter);
3258         }
3259
3260         retval = ext2fs_convert_subcluster_bitmap(fs, &fs->block_map);
3261         if (retval) {
3262                 com_err(program_name, retval, "%s",
3263                         _("\n\twhile converting subcluster bitmap"));
3264                 exit(1);
3265         }
3266
3267         retval = ext2fs_count_used_clusters(fs, fs->super->s_first_data_block,
3268                                         ext2fs_blocks_count(fs->super) - 1,
3269                                         &overhead);
3270         if (retval) {
3271                 com_err(program_name, retval, "%s",
3272                         _("while calculating overhead"));
3273                 exit(1);
3274         }
3275
3276         if (bb_list) {
3277                 retval = ext2fs_badblocks_list_iterate_begin(bb_list,
3278                                                              &bb_iter);
3279                 if (retval) {
3280                         com_err("ext2fs_badblocks_list_iterate_begin", retval,
3281                                 "%s", _("while marking bad blocks as used"));
3282                         exit(1);
3283                 }
3284                 while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
3285                         ext2fs_mark_block_bitmap2(fs->block_map, blk);
3286                 ext2fs_badblocks_list_iterate_end(bb_iter);
3287         }
3288
3289         if (super_only) {
3290                 check_plausibility(device_name, CHECK_FS_EXIST, NULL);
3291                 printf(_("%s may be further corrupted by superblock rewrite\n"),
3292                        device_name);
3293                 if (!force)
3294                         proceed_question(proceed_delay);
3295                 fs->super->s_state |= EXT2_ERROR_FS;
3296                 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
3297                 /*
3298                  * The command "mke2fs -S" is used to recover
3299                  * corrupted file systems, so do not mark any of the
3300                  * inodes as unused; we want e2fsck to consider all
3301                  * inodes as potentially containing recoverable data.
3302                  */
3303                 if (ext2fs_has_group_desc_csum(fs)) {
3304                         for (i = 0; i < fs->group_desc_count; i++)
3305                                 ext2fs_bg_itable_unused_set(fs, i, 0);
3306                 }
3307         } else {
3308                 /* rsv must be a power of two (64kB is MD RAID sb alignment) */
3309                 blk64_t rsv = 65536 / fs->blocksize;
3310                 blk64_t blocks = ext2fs_blocks_count(fs->super);
3311                 blk64_t start;
3312                 blk64_t ret_blk;
3313
3314 #ifdef ZAP_BOOTBLOCK
3315                 zap_sector(fs, 0, 2);
3316 #endif
3317
3318                 /*
3319                  * Wipe out any old MD RAID (or other) metadata at the end
3320                  * of the device.  This will also verify that the device is
3321                  * as large as we think.  Be careful with very small devices.
3322                  */
3323                 start = (blocks & ~(rsv - 1));
3324                 if (start > rsv)
3325                         start -= rsv;
3326                 if (start > 0)
3327                         retval = ext2fs_zero_blocks2(fs, start, blocks - start,
3328                                                     &ret_blk, NULL);
3329
3330                 if (retval) {
3331                         com_err(program_name, retval,
3332                                 _("while zeroing block %llu at end of filesystem"),
3333                                 ret_blk);
3334                 }
3335                 write_inode_tables(fs, lazy_itable_init, itable_zeroed);
3336                 create_root_dir(fs);
3337                 create_lost_and_found(fs);
3338                 reserve_inodes(fs);
3339                 create_bad_block_inode(fs, bb_list);
3340                 if (ext2fs_has_feature_resize_inode(fs->super)) {
3341                         retval = ext2fs_create_resize_inode(fs);
3342                         if (retval) {
3343                                 com_err("ext2fs_create_resize_inode", retval,
3344                                         "%s",
3345                                 _("while reserving blocks for online resize"));
3346                                 exit(1);
3347                         }
3348                 }
3349         }
3350
3351         if (journal_device) {
3352                 ext2_filsys     jfs;
3353
3354                 if (!check_plausibility(journal_device, CHECK_BLOCK_DEV,
3355                                         NULL) && !force)
3356                         proceed_question(proceed_delay);
3357                 check_mount(journal_device, force, _("journal"));
3358
3359                 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
3360                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
3361                                      fs->blocksize, unix_io_manager, &jfs);
3362                 if (retval) {
3363                         com_err(program_name, retval,
3364                                 _("while trying to open journal device %s\n"),
3365                                 journal_device);
3366                         exit(1);
3367                 }
3368                 if (!quiet) {
3369                         printf(_("Adding journal to device %s: "),
3370                                journal_device);
3371                         fflush(stdout);
3372                 }
3373                 retval = ext2fs_add_journal_device(fs, jfs);
3374                 if(retval) {
3375                         com_err (program_name, retval,
3376                                  _("\n\twhile trying to add journal to device %s"),
3377                                  journal_device);
3378                         exit(1);
3379                 }
3380                 if (!quiet)
3381                         printf("%s", _("done\n"));
3382                 ext2fs_close_free(&jfs);
3383                 free(journal_device);
3384         } else if ((journal_size) ||
3385                    ext2fs_has_feature_journal(&fs_param)) {
3386                 overhead += EXT2FS_NUM_B2C(fs, jparams.num_journal_blocks + jparams.num_fc_blocks);
3387                 if (super_only) {
3388                         printf("%s", _("Skipping journal creation in super-only mode\n"));
3389                         fs->super->s_journal_inum = EXT2_JOURNAL_INO;
3390                         goto no_journal;
3391                 }
3392
3393                 if (!jparams.num_journal_blocks) {
3394                         ext2fs_clear_feature_journal(fs->super);
3395                         goto no_journal;
3396                 }
3397                 if (!quiet) {
3398                         printf(_("Creating journal (%u blocks): "),
3399                                jparams.num_journal_blocks + jparams.num_fc_blocks);
3400                         fflush(stdout);
3401                 }
3402                 retval = ext2fs_add_journal_inode3(fs, &jparams,
3403                                                    journal_location,
3404                                                    journal_flags);
3405                 if (retval) {
3406                         com_err(program_name, retval, "%s",
3407                                 _("\n\twhile trying to create journal"));
3408                         exit(1);
3409                 }
3410                 if (!quiet)
3411                         printf("%s", _("done\n"));
3412         }
3413 no_journal:
3414         if (!super_only &&
3415             ext2fs_has_feature_mmp(fs->super)) {
3416                 retval = ext2fs_mmp_init(fs);
3417                 if (retval) {
3418                         fprintf(stderr, "%s",
3419                                 _("\nError while enabling multiple "
3420                                   "mount protection feature."));
3421                         exit(1);
3422                 }
3423                 if (!quiet)
3424                         printf(_("Multiple mount protection is enabled "
3425                                  "with update interval %d seconds.\n"),
3426                                fs->super->s_mmp_update_interval);
3427         }
3428
3429         overhead += fs->super->s_first_data_block;
3430         if (!super_only)
3431                 fs->super->s_overhead_clusters = overhead;
3432
3433         if (ext2fs_has_feature_bigalloc(&fs_param))
3434                 fix_cluster_bg_counts(fs);
3435         if (ext2fs_has_feature_quota(&fs_param))
3436                 create_quota_inodes(fs);
3437
3438         retval = mk_hugefiles(fs, device_name);
3439         if (retval)
3440                 com_err(program_name, retval, "while creating huge files");
3441         /* Copy files from the specified directory */
3442         if (src_root_dir) {
3443                 if (!quiet)
3444                         printf("%s", _("Copying files into the device: "));
3445
3446                 retval = populate_fs(fs, EXT2_ROOT_INO, src_root_dir,
3447                                      EXT2_ROOT_INO);
3448                 if (retval) {
3449                         com_err(program_name, retval, "%s",
3450                                 _("while populating file system"));
3451                         exit(1);
3452                 } else if (!quiet)
3453                         printf("%s", _("done\n"));
3454         }
3455
3456         if (!quiet)
3457                 printf("%s", _("Writing superblocks and "
3458                        "filesystem accounting information: "));
3459         checkinterval = fs->super->s_checkinterval;
3460         max_mnt_count = fs->super->s_max_mnt_count;
3461         retval = ext2fs_close_free(&fs);
3462         if (retval) {
3463                 com_err(program_name, retval, "%s",
3464                         _("while writing out and closing file system"));
3465                 retval = 1;
3466         } else if (!quiet) {
3467                 printf("%s", _("done\n\n"));
3468                 if (!getenv("MKE2FS_SKIP_CHECK_MSG"))
3469                         print_check_message(max_mnt_count, checkinterval);
3470         }
3471
3472         remove_error_table(&et_ext2_error_table);
3473         remove_error_table(&et_prof_error_table);
3474         profile_release(profile);
3475         for (i=0; fs_types[i]; i++)
3476                 free(fs_types[i]);
3477         free(fs_types);
3478         return retval;
3479 }