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 static int      lazy_itable_init;
  97 static int      packed_meta_blocks;
  98 int             no_copy_xattrs;
  99 static char     *bad_blocks_filename = NULL;
 100 static __u32    fs_stride;
 101 /* Initialize usr/grp quotas by default */
 102 static unsigned int quotatype_bits = (QUOTA_USR_BIT | QUOTA_GRP_BIT);
 103 static __u64    offset;
 104 static blk64_t journal_location = ~0LL;
 105 static int      proceed_delay = -1;
 106 static blk64_t  dev_size;
 107
 108 static struct ext2_super_block fs_param;
 109 static __u32 zero_buf[4];
 110 static char *fs_uuid = NULL;
 111 static char *creator_os;
 112 static char *volume_label;
 113 static char *mount_dir;
 114 char *journal_device;
 115 static int sync_kludge; /* Set using the MKE2FS_SYNC env. option */
 116 char **fs_types;
 117 const char *src_root_dir;  /* Copy files from the specified directory */
 118 static char *undo_file;
 119
 120 static int android_sparse_file; /* -E android_sparse */
 121
 122 static profile_t        profile;
 123
 124 static int sys_page_size = 4096;
 125
 126 static int errors_behavior = 0;
 127
 128 static void usage(void)
 129 {
 130         fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] "
 131         "[-C cluster-size]\n\t[-i bytes-per-inode] [-I inode-size] "
 132         "[-J journal-options]\n"
 133         "\t[-G flex-group-size] [-N number-of-inodes] "
 134         "[-d root-directory]\n"
 135         "\t[-m reserved-blocks-percentage] [-o creator-os]\n"
 136         "\t[-g blocks-per-group] [-L volume-label] "
 137         "[-M last-mounted-directory]\n\t[-O feature[,...]] "
 138         "[-r fs-revision] [-E extended-option[,...]]\n"
 139         "\t[-t fs-type] [-T usage-type ] [-U UUID] [-e errors_behavior]"
 140         "[-z undo_file]\n"
 141         "\t[-jnqvDFSV] device [blocks-count]\n"),
 142                 program_name);
 143         exit(1);
 144 }
 145
 146 static int int_log2(unsigned long long arg)
 147 {
 148         int     l = 0;
 149
 150         arg >>= 1;
 151         while (arg) {
 152                 l++;
 153                 arg >>= 1;
 154         }
 155         return l;
 156 }
 157
 158 int int_log10(unsigned long long arg)
 159 {
 160         int     l;
 161
 162         for (l=0; arg ; l++)
 163                 arg = arg / 10;
 164         return l;
 165 }
 166
 167 #ifdef __linux__
 168 static int parse_version_number(const char *s)
 169 {
 170         int     major, minor, rev;
 171         char    *endptr;
 172         const char *cp = s;
 173
 174         if (!s)
 175                 return 0;
 176         major = strtol(cp, &endptr, 10);
 177         if (cp == endptr || *endptr != '.')
 178                 return 0;
 179         cp = endptr + 1;
 180         minor = strtol(cp, &endptr, 10);
 181         if (cp == endptr || *endptr != '.')
 182                 return 0;
 183         cp = endptr + 1;
 184         rev = strtol(cp, &endptr, 10);
 185         if (cp == endptr)
 186                 return 0;
 187         return KERNEL_VERSION(major, minor, rev);
 188 }
 189
 190 static int is_before_linux_ver(unsigned int major, unsigned int minor,
 191                                unsigned int rev)
 192 {
 193         struct          utsname ut;
 194         static int      linux_version_code = -1;
 195
 196         if (uname(&ut)) {
 197                 perror("uname");
 198                 exit(1);
 199         }
 200         if (linux_version_code < 0)
 201                 linux_version_code = parse_version_number(ut.release);
 202         if (linux_version_code == 0)
 203                 return 0;
 204
 205         return linux_version_code < (int) KERNEL_VERSION(major, minor, rev);
 206 }
 207 #else
 208 static int is_before_linux_ver(unsigned int major, unsigned int minor,
 209                                unsigned int rev)
 210 {
 211         return 0;
 212 }
 213 #endif
 214
 215 /*
 216  * Helper function for read_bb_file and test_disk
 217  */
 218 static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk)
 219 {
 220         fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk);
 221         return;
 222 }
 223
 224 /*
 225  * Reads the bad blocks list from a file
 226  */
 227 static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list,
 228                          const char *bad_blocks_file)
 229 {
 230         FILE            *f;
 231         errcode_t       retval;
 232
 233         f = fopen(bad_blocks_file, "r");
 234         if (!f) {
 235                 com_err("read_bad_blocks_file", errno,
 236                         _("while trying to open %s"), bad_blocks_file);
 237                 exit(1);
 238         }
 239         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
 240         fclose (f);
 241         if (retval) {
 242                 com_err("ext2fs_read_bb_FILE", retval, "%s",
 243                         _("while reading in list of bad blocks from file"));
 244                 exit(1);
 245         }
 246 }
 247
 248 /*
 249  * Runs the badblocks program to test the disk
 250  */
 251 static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
 252 {
 253         FILE            *f;
 254         errcode_t       retval;
 255         char            buf[1024];
 256
 257         sprintf(buf, "badblocks -b %d -X %s%s%s %llu", fs->blocksize,
 258                 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "",
 259                 fs->device_name, ext2fs_blocks_count(fs->super)-1);
 260         if (verbose)
 261                 printf(_("Running command: %s\n"), buf);
 262         f = popen(buf, "r");
 263         if (!f) {
 264                 com_err("popen", errno,
 265                         _("while trying to run '%s'"), buf);
 266                 exit(1);
 267         }
 268         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
 269         pclose(f);
 270         if (retval) {
 271                 com_err("ext2fs_read_bb_FILE", retval, "%s",
 272                         _("while processing list of bad blocks from program"));
 273                 exit(1);
 274         }
 275 }
 276
 277 static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
 278 {
 279         dgrp_t                  i;
 280         blk_t                   j;
 281         unsigned                must_be_good;
 282         blk_t                   blk;
 283         badblocks_iterate       bb_iter;
 284         errcode_t               retval;
 285         blk_t                   group_block;
 286         int                     group;
 287         int                     group_bad;
 288
 289         if (!bb_list)
 290                 return;
 291
 292         /*
 293          * The primary superblock and group descriptors *must* be
 294          * good; if not, abort.
 295          */
 296         must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
 297         for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
 298                 if (ext2fs_badblocks_list_test(bb_list, i)) {
 299                         fprintf(stderr, _("Block %d in primary "
 300                                 "superblock/group descriptor area bad.\n"), i);
 301                         fprintf(stderr, _("Blocks %u through %u must be good "
 302                                 "in order to build a filesystem.\n"),
 303                                 fs->super->s_first_data_block, must_be_good);
 304                         fputs(_("Aborting....\n"), stderr);
 305                         exit(1);
 306                 }
 307         }
 308
 309         /*
 310          * See if any of the bad blocks are showing up in the backup
 311          * superblocks and/or group descriptors.  If so, issue a
 312          * warning and adjust the block counts appropriately.
 313          */
 314         group_block = fs->super->s_first_data_block +
 315                 fs->super->s_blocks_per_group;
 316
 317         for (i = 1; i < fs->group_desc_count; i++) {
 318                 group_bad = 0;
 319                 for (j=0; j < fs->desc_blocks+1; j++) {
 320                         if (ext2fs_badblocks_list_test(bb_list,
 321                                                        group_block + j)) {
 322                                 if (!group_bad)
 323                                         fprintf(stderr,
 324 _("Warning: the backup superblock/group descriptors at block %u contain\n"
 325 "       bad blocks.\n\n"),
 326                                                 group_block);
 327                                 group_bad++;
 328                                 group = ext2fs_group_of_blk2(fs, group_block+j);
 329                                 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
 330                                 ext2fs_group_desc_csum_set(fs, group);
 331                                 ext2fs_free_blocks_count_add(fs->super, 1);
 332                         }
 333                 }
 334                 group_block += fs->super->s_blocks_per_group;
 335         }
 336
 337         /*
 338          * Mark all the bad blocks as used...
 339          */
 340         retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
 341         if (retval) {
 342                 com_err("ext2fs_badblocks_list_iterate_begin", retval, "%s",
 343                         _("while marking bad blocks as used"));
 344                 exit(1);
 345         }
 346         while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
 347                 ext2fs_mark_block_bitmap2(fs->block_map, blk);
 348         ext2fs_badblocks_list_iterate_end(bb_iter);
 349 }
 350
 351 static void write_reserved_inodes(ext2_filsys fs)
 352 {
 353         errcode_t       retval;
 354         ext2_ino_t      ino;
 355         struct ext2_inode *inode;
 356
 357         retval = ext2fs_get_memzero(EXT2_INODE_SIZE(fs->super), &inode);
 358         if (retval) {
 359                 com_err("inode_init", retval, _("while allocating memory"));
 360                 exit(1);
 361         }
 362
 363         for (ino = 1; ino < EXT2_FIRST_INO(fs->super); ino++) {
 364                 retval = ext2fs_write_inode_full(fs, ino, inode,
 365                                                  EXT2_INODE_SIZE(fs->super));
 366                 if (retval) {
 367                         com_err("ext2fs_write_inode_full", retval,
 368                                 _("while writing reserved inodes"));
 369                         exit(1);
 370                 }
 371         }
 372
 373         ext2fs_free_mem(&inode);
 374 }
 375
 376 static errcode_t packed_allocate_tables(ext2_filsys fs)
 377 {
 378         errcode_t       retval;
 379         dgrp_t          i;
 380         blk64_t         goal = 0;
 381
 382         for (i = 0; i < fs->group_desc_count; i++) {
 383                 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
 384                 if (retval)
 385                         return retval;
 386                 ext2fs_block_alloc_stats2(fs, goal, +1);
 387                 ext2fs_block_bitmap_loc_set(fs, i, goal);
 388         }
 389         for (i = 0; i < fs->group_desc_count; i++) {
 390                 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
 391                 if (retval)
 392                         return retval;
 393                 ext2fs_block_alloc_stats2(fs, goal, +1);
 394                 ext2fs_inode_bitmap_loc_set(fs, i, goal);
 395         }
 396         for (i = 0; i < fs->group_desc_count; i++) {
 397                 blk64_t end = ext2fs_blocks_count(fs->super) - 1;
 398                 retval = ext2fs_get_free_blocks2(fs, goal, end,
 399                                                  fs->inode_blocks_per_group,
 400                                                  fs->block_map, &goal);
 401                 if (retval)
 402                         return retval;
 403                 ext2fs_block_alloc_stats_range(fs, goal,
 404                                                fs->inode_blocks_per_group, +1);
 405                 ext2fs_inode_table_loc_set(fs, i, goal);
 406                 ext2fs_group_desc_csum_set(fs, i);
 407         }
 408         return 0;
 409 }
 410
 411 static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed)
 412 {
 413         errcode_t       retval;
 414         blk64_t         blk;
 415         dgrp_t          i;
 416         int             num;
 417         struct ext2fs_numeric_progress_struct progress;
 418
 419         ext2fs_numeric_progress_init(fs, &progress,
 420                                      _("Writing inode tables: "),
 421                                      fs->group_desc_count);
 422
 423         for (i = 0; i < fs->group_desc_count; i++) {
 424                 ext2fs_numeric_progress_update(fs, &progress, i);
 425
 426                 blk = ext2fs_inode_table_loc(fs, i);
 427                 num = fs->inode_blocks_per_group;
 428
 429                 if (lazy_flag)
 430                         num = ext2fs_div_ceil((fs->super->s_inodes_per_group -
 431                                                ext2fs_bg_itable_unused(fs, i)) *
 432                                               EXT2_INODE_SIZE(fs->super),
 433                                               EXT2_BLOCK_SIZE(fs->super));
 434                 if (!lazy_flag || itable_zeroed) {
 435                         /* The kernel doesn't need to zero the itable blocks */
 436                         ext2fs_bg_flags_set(fs, i, EXT2_BG_INODE_ZEROED);
 437                         ext2fs_group_desc_csum_set(fs, i);
 438                 }
 439                 if (!itable_zeroed) {
 440                         retval = ext2fs_zero_blocks2(fs, blk, num, &blk, &num);
 441                         if (retval) {
 442                                 fprintf(stderr, _("\nCould not write %d "
 443                                           "blocks in inode table starting at %llu: %s\n"),
 444                                         num, blk, error_message(retval));
 445                                 exit(1);
 446                         }
 447                 }
 448                 if (sync_kludge) {
 449                         if (sync_kludge == 1)
 450                                 io_channel_flush(fs->io);
 451                         else if ((i % sync_kludge) == 0)
 452                                 io_channel_flush(fs->io);
 453                 }
 454         }
 455         ext2fs_numeric_progress_close(fs, &progress,
 456                                       _("done                            \n"));
 457
 458         /* Reserved inodes must always have correct checksums */
 459         if (ext2fs_has_feature_metadata_csum(fs->super))
 460                 write_reserved_inodes(fs);
 461 }
 462
 463 static void create_root_dir(ext2_filsys fs)
 464 {
 465         errcode_t               retval;
 466         struct ext2_inode       inode;
 467
 468         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
 469         if (retval) {
 470                 com_err("ext2fs_mkdir", retval, "%s",
 471                         _("while creating root dir"));
 472                 exit(1);
 473         }
 474         if (root_uid != 0 || root_gid != 0) {
 475                 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
 476                 if (retval) {
 477                         com_err("ext2fs_read_inode", retval, "%s",
 478                                 _("while reading root inode"));
 479                         exit(1);
 480                 }
 481
 482                 inode.i_uid = root_uid;
 483                 ext2fs_set_i_uid_high(inode, root_uid >> 16);
 484                 inode.i_gid = root_gid;
 485                 ext2fs_set_i_gid_high(inode, root_gid >> 16);
 486
 487                 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
 488                 if (retval) {
 489                         com_err("ext2fs_write_inode", retval, "%s",
 490                                 _("while setting root inode ownership"));
 491                         exit(1);
 492                 }
 493         }
 494 }
 495
 496 static void create_lost_and_found(ext2_filsys fs)
 497 {
 498         unsigned int            lpf_size = 0;
 499         errcode_t               retval;
 500         ext2_ino_t              ino;
 501         const char              *name = "lost+found";
 502         int                     i;
 503
 504         fs->umask = 077;
 505         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
 506         if (retval) {
 507                 com_err("ext2fs_mkdir", retval, "%s",
 508                         _("while creating /lost+found"));
 509                 exit(1);
 510         }
 511
 512         retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
 513         if (retval) {
 514                 com_err("ext2_lookup", retval, "%s",
 515                         _("while looking up /lost+found"));
 516                 exit(1);
 517         }
 518
 519         for (i=1; i < EXT2_NDIR_BLOCKS; i++) {
 520                 /* Ensure that lost+found is at least 2 blocks, so we always
 521                  * test large empty blocks for big-block filesystems.  */
 522                 if ((lpf_size += fs->blocksize) >= 16*1024 &&
 523                     lpf_size >= 2 * fs->blocksize)
 524                         break;
 525                 retval = ext2fs_expand_dir(fs, ino);
 526                 if (retval) {
 527                         com_err("ext2fs_expand_dir", retval, "%s",
 528                                 _("while expanding /lost+found"));
 529                         exit(1);
 530                 }
 531         }
 532 }
 533
 534 static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
 535 {
 536         errcode_t       retval;
 537
 538         ext2fs_mark_inode_bitmap2(fs->inode_map, EXT2_BAD_INO);
 539         ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0);
 540         retval = ext2fs_update_bb_inode(fs, bb_list);
 541         if (retval) {
 542                 com_err("ext2fs_update_bb_inode", retval, "%s",
 543                         _("while setting bad block inode"));
 544                 exit(1);
 545         }
 546
 547 }
 548
 549 static void reserve_inodes(ext2_filsys fs)
 550 {
 551         ext2_ino_t      i;
 552
 553         for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++)
 554                 ext2fs_inode_alloc_stats2(fs, i, +1, 0);
 555         ext2fs_mark_ib_dirty(fs);
 556 }
 557
 558 #define BSD_DISKMAGIC   (0x82564557UL)  /* The disk magic number */
 559 #define BSD_MAGICDISK   (0x57455682UL)  /* The disk magic number reversed */
 560 #define BSD_LABEL_OFFSET        64
 561
 562 static void zap_sector(ext2_filsys fs, int sect, int nsect)
 563 {
 564         char *buf;
 565         int retval;
 566         unsigned int *magic;
 567
 568         buf = calloc(512, nsect);
 569         if (!buf) {
 570                 printf(_("Out of memory erasing sectors %d-%d\n"),
 571                        sect, sect + nsect - 1);
 572                 exit(1);
 573         }
 574
 575         if (sect == 0) {
 576                 /* Check for a BSD disklabel, and don't erase it if so */
 577                 retval = io_channel_read_blk64(fs->io, 0, -512, buf);
 578                 if (retval)
 579                         fprintf(stderr,
 580                                 _("Warning: could not read block 0: %s\n"),
 581                                 error_message(retval));
 582                 else {
 583                         magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);
 584                         if ((*magic == BSD_DISKMAGIC) ||
 585                             (*magic == BSD_MAGICDISK))
 586                                 return;
 587                 }
 588         }
 589
 590         memset(buf, 0, 512*nsect);
 591         io_channel_set_blksize(fs->io, 512);
 592         retval = io_channel_write_blk64(fs->io, sect, -512*nsect, buf);
 593         io_channel_set_blksize(fs->io, fs->blocksize);
 594         free(buf);
 595         if (retval)
 596                 fprintf(stderr, _("Warning: could not erase sector %d: %s\n"),
 597                         sect, error_message(retval));
 598 }
 599
 600 static void create_journal_dev(ext2_filsys fs)
 601 {
 602         struct ext2fs_numeric_progress_struct progress;
 603         errcode_t               retval;
 604         char                    *buf;
 605         blk64_t                 blk, err_blk;
 606         int                     c, count, err_count;
 607
 608         retval = ext2fs_create_journal_superblock(fs,
 609                                   ext2fs_blocks_count(fs->super), 0, &buf);
 610         if (retval) {
 611                 com_err("create_journal_dev", retval, "%s",
 612                         _("while initializing journal superblock"));
 613                 exit(1);
 614         }
 615
 616         if (journal_flags & EXT2_MKJOURNAL_LAZYINIT)
 617                 goto write_superblock;
 618
 619         ext2fs_numeric_progress_init(fs, &progress,
 620                                      _("Zeroing journal device: "),
 621                                      ext2fs_blocks_count(fs->super));
 622         blk = 0;
 623         count = ext2fs_blocks_count(fs->super);
 624         while (count > 0) {
 625                 if (count > 1024)
 626                         c = 1024;
 627                 else
 628                         c = count;
 629                 retval = ext2fs_zero_blocks2(fs, blk, c, &err_blk, &err_count);
 630                 if (retval) {
 631                         com_err("create_journal_dev", retval,
 632                                 _("while zeroing journal device "
 633                                   "(block %llu, count %d)"),
 634                                 err_blk, err_count);
 635                         exit(1);
 636                 }
 637                 blk += c;
 638                 count -= c;
 639                 ext2fs_numeric_progress_update(fs, &progress, blk);
 640         }
 641
 642         ext2fs_numeric_progress_close(fs, &progress, NULL);
 643 write_superblock:
 644         retval = io_channel_write_blk64(fs->io,
 645                                         fs->super->s_first_data_block+1,
 646                                         1, buf);
 647         (void) ext2fs_free_mem(&buf);
 648         if (retval) {
 649                 com_err("create_journal_dev", retval, "%s",
 650                         _("while writing journal superblock"));
 651                 exit(1);
 652         }
 653 }
 654
 655 static void show_stats(ext2_filsys fs)
 656 {
 657         struct ext2_super_block *s = fs->super;
 658         char                    *os;
 659         blk64_t                 group_block;
 660         dgrp_t                  i;
 661         int                     need, col_left;
 662
 663         if (!verbose) {
 664                 printf(_("Creating filesystem with %llu %dk blocks and "
 665                          "%u inodes\n"),
 666                        ext2fs_blocks_count(s), fs->blocksize >> 10,
 667                        s->s_inodes_count);
 668                 goto skip_details;
 669         }
 670
 671         if (ext2fs_blocks_count(&fs_param) != ext2fs_blocks_count(s))
 672                 fprintf(stderr, _("warning: %llu blocks unused.\n\n"),
 673                        ext2fs_blocks_count(&fs_param) - ext2fs_blocks_count(s));
 674
 675         printf(_("Filesystem label=%.*s\n"), EXT2_LEN_STR(s->s_volume_name));
 676
 677         os = e2p_os2string(fs->super->s_creator_os);
 678         if (os)
 679                 printf(_("OS type: %s\n"), os);
 680         free(os);
 681         printf(_("Block size=%u (log=%u)\n"), fs->blocksize,
 682                 s->s_log_block_size);
 683         if (ext2fs_has_feature_bigalloc(fs->super))
 684                 printf(_("Cluster size=%u (log=%u)\n"),
 685                        fs->blocksize << fs->cluster_ratio_bits,
 686                        s->s_log_cluster_size);
 687         else
 688                 printf(_("Fragment size=%u (log=%u)\n"), EXT2_CLUSTER_SIZE(s),
 689                        s->s_log_cluster_size);
 690         printf(_("Stride=%u blocks, Stripe width=%u blocks\n"),
 691                s->s_raid_stride, s->s_raid_stripe_width);
 692         printf(_("%u inodes, %llu blocks\n"), s->s_inodes_count,
 693                ext2fs_blocks_count(s));
 694         printf(_("%llu blocks (%2.2f%%) reserved for the super user\n"),
 695                 ext2fs_r_blocks_count(s),
 696                100.0 *  ext2fs_r_blocks_count(s) / ext2fs_blocks_count(s));
 697         printf(_("First data block=%u\n"), s->s_first_data_block);
 698         if (root_uid != 0 || root_gid != 0)
 699                 printf(_("Root directory owner=%u:%u\n"), root_uid, root_gid);
 700         if (s->s_reserved_gdt_blocks)
 701                 printf(_("Maximum filesystem blocks=%lu\n"),
 702                        (s->s_reserved_gdt_blocks + fs->desc_blocks) *
 703                        EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group);
 704         if (fs->group_desc_count > 1)
 705                 printf(_("%u block groups\n"), fs->group_desc_count);
 706         else
 707                 printf(_("%u block group\n"), fs->group_desc_count);
 708         if (ext2fs_has_feature_bigalloc(fs->super))
 709                 printf(_("%u blocks per group, %u clusters per group\n"),
 710                        s->s_blocks_per_group, s->s_clusters_per_group);
 711         else
 712                 printf(_("%u blocks per group, %u fragments per group\n"),
 713                        s->s_blocks_per_group, s->s_clusters_per_group);
 714         printf(_("%u inodes per group\n"), s->s_inodes_per_group);
 715
 716 skip_details:
 717         if (fs->group_desc_count == 1) {
 718                 printf("\n");
 719                 return;
 720         }
 721
 722         if (!e2p_is_null_uuid(s->s_uuid))
 723                 printf(_("Filesystem UUID: %s\n"), e2p_uuid2str(s->s_uuid));
 724         printf("%s", _("Superblock backups stored on blocks: "));
 725         group_block = s->s_first_data_block;
 726         col_left = 0;
 727         for (i = 1; i < fs->group_desc_count; i++) {
 728                 group_block += s->s_blocks_per_group;
 729                 if (!ext2fs_bg_has_super(fs, i))
 730                         continue;
 731                 if (i != 1)
 732                         printf(", ");
 733                 need = int_log10(group_block) + 2;
 734                 if (need > col_left) {
 735                         printf("\n\t");
 736                         col_left = 72;
 737                 }
 738                 col_left -= need;
 739                 printf("%llu", group_block);
 740         }
 741         printf("\n\n");
 742 }
 743
 744 /*
 745  * Returns true if making a file system for the Hurd, else 0
 746  */
 747 static int for_hurd(const char *os)
 748 {
 749         if (!os) {
 750 #ifdef __GNU__
 751                 return 1;
 752 #else
 753                 return 0;
 754 #endif
 755         }
 756         if (isdigit(*os))
 757                 return (atoi(os) == EXT2_OS_HURD);
 758         return (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0);
 759 }
 760
 761 /*
 762  * Set the S_CREATOR_OS field.  Return true if OS is known,
 763  * otherwise, 0.
 764  */
 765 static int set_os(struct ext2_super_block *sb, char *os)
 766 {
 767         if (isdigit (*os))
 768                 sb->s_creator_os = atoi (os);
 769         else if (strcasecmp(os, "linux") == 0)
 770                 sb->s_creator_os = EXT2_OS_LINUX;
 771         else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0)
 772                 sb->s_creator_os = EXT2_OS_HURD;
 773         else if (strcasecmp(os, "freebsd") == 0)
 774                 sb->s_creator_os = EXT2_OS_FREEBSD;
 775         else if (strcasecmp(os, "lites") == 0)
 776                 sb->s_creator_os = EXT2_OS_LITES;
 777         else
 778                 return 0;
 779         return 1;
 780 }
 781
 782 #define PATH_SET "PATH=/sbin"
 783
 784 static void parse_extended_opts(struct ext2_super_block *param,
 785                                 const char *opts)
 786 {
 787         char    *buf, *token, *next, *p, *arg, *badopt = 0;
 788         int     len;
 789         int     r_usage = 0;
 790         int     ret;
 791         int     encoding = -1;
 792         char    *encoding_flags = NULL;
 793
 794         len = strlen(opts);
 795         buf = malloc(len+1);
 796         if (!buf) {
 797                 fprintf(stderr, "%s",
 798                         _("Couldn't allocate memory to parse options!\n"));
 799                 exit(1);
 800         }
 801         strcpy(buf, opts);
 802         for (token = buf; token && *token; token = next) {
 803                 p = strchr(token, ',');
 804                 next = 0;
 805                 if (p) {
 806                         *p = 0;
 807                         next = p+1;
 808                 }
 809                 arg = strchr(token, '=');
 810                 if (arg) {
 811                         *arg = 0;
 812                         arg++;
 813                 }
 814                 if (strcmp(token, "desc-size") == 0 ||
 815                     strcmp(token, "desc_size") == 0) {
 816                         int desc_size;
 817
 818                         if (!ext2fs_has_feature_64bit(&fs_param)) {
 819                                 fprintf(stderr,
 820                                         _("%s requires '-O 64bit'\n"), token);
 821                                 r_usage++;
 822                                 continue;
 823                         }
 824                         if (param->s_reserved_gdt_blocks != 0) {
 825                                 fprintf(stderr,
 826                                         _("'%s' must be before 'resize=%u'\n"),
 827                                         token, param->s_reserved_gdt_blocks);
 828                                 r_usage++;
 829                                 continue;
 830                         }
 831                         if (!arg) {
 832                                 r_usage++;
 833                                 badopt = token;
 834                                 continue;
 835                         }
 836                         desc_size = strtoul(arg, &p, 0);
 837                         if (*p || (desc_size & (desc_size - 1))) {
 838                                 fprintf(stderr,
 839                                         _("Invalid desc_size: '%s'\n"), arg);
 840                                 r_usage++;
 841                                 continue;
 842                         }
 843                         param->s_desc_size = desc_size;
 844                 } else if (strcmp(token, "hash_seed") == 0) {
 845                         if (!arg) {
 846                                 r_usage++;
 847                                 badopt = token;
 848                                 continue;
 849                         }
 850                         if (uuid_parse(arg,
 851                                 (unsigned char *)param->s_hash_seed) != 0) {
 852                                 fprintf(stderr,
 853                                         _("Invalid hash seed: %s\n"), arg);
 854                                 r_usage++;
 855                                 continue;
 856                         }
 857                 } else if (strcmp(token, "offset") == 0) {
 858                         if (!arg) {
 859                                 r_usage++;
 860                                 badopt = token;
 861                                 continue;
 862                         }
 863                         offset = strtoull(arg, &p, 0);
 864                         if (*p) {
 865                                 fprintf(stderr, _("Invalid offset: %s\n"),
 866                                         arg);
 867                                 r_usage++;
 868                                 continue;
 869                         }
 870                 } else if (strcmp(token, "mmp_update_interval") == 0) {
 871                         if (!arg) {
 872                                 r_usage++;
 873                                 badopt = token;
 874                                 continue;
 875                         }
 876                         param->s_mmp_update_interval = strtoul(arg, &p, 0);
 877                         if (*p) {
 878                                 fprintf(stderr,
 879                                         _("Invalid mmp_update_interval: %s\n"),
 880                                         arg);
 881                                 r_usage++;
 882                                 continue;
 883                         }
 884                 } else if (strcmp(token, "no_copy_xattrs") == 0) {
 885                         no_copy_xattrs = 1;
 886                         continue;
 887                 } else if (strcmp(token, "num_backup_sb") == 0) {
 888                         if (!arg) {
 889                                 r_usage++;
 890                                 badopt = token;
 891                                 continue;
 892                         }
 893                         num_backups = strtoul(arg, &p, 0);
 894                         if (*p || num_backups > 2) {
 895                                 fprintf(stderr,
 896                                         _("Invalid # of backup "
 897                                           "superblocks: %s\n"),
 898                                         arg);
 899                                 r_usage++;
 900                                 continue;
 901                         }
 902                 } else if (strcmp(token, "packed_meta_blocks") == 0) {
 903                         if (arg)
 904                                 packed_meta_blocks = strtoul(arg, &p, 0);
 905                         else
 906                                 packed_meta_blocks = 1;
 907                         if (packed_meta_blocks)
 908                                 journal_location = 0;
 909                 } else if (strcmp(token, "stride") == 0) {
 910                         if (!arg) {
 911                                 r_usage++;
 912                                 badopt = token;
 913                                 continue;
 914                         }
 915                         param->s_raid_stride = strtoul(arg, &p, 0);
 916                         if (*p) {
 917                                 fprintf(stderr,
 918                                         _("Invalid stride parameter: %s\n"),
 919                                         arg);
 920                                 r_usage++;
 921                                 continue;
 922                         }
 923                 } else if (strcmp(token, "stripe-width") == 0 ||
 924                            strcmp(token, "stripe_width") == 0) {
 925                         if (!arg) {
 926                                 r_usage++;
 927                                 badopt = token;
 928                                 continue;
 929                         }
 930                         param->s_raid_stripe_width = strtoul(arg, &p, 0);
 931                         if (*p) {
 932                                 fprintf(stderr,
 933                                         _("Invalid stripe-width parameter: %s\n"),
 934                                         arg);
 935                                 r_usage++;
 936                                 continue;
 937                         }
 938                 } else if (!strcmp(token, "resize")) {
 939                         blk64_t resize;
 940                         unsigned long bpg, rsv_groups;
 941                         unsigned long group_desc_count, desc_blocks;
 942                         unsigned int gdpb, blocksize;
 943                         int rsv_gdb;
 944
 945                         if (!arg) {
 946                                 r_usage++;
 947                                 badopt = token;
 948                                 continue;
 949                         }
 950
 951                         resize = parse_num_blocks2(arg,
 952                                                    param->s_log_block_size);
 953
 954                         if (resize == 0) {
 955                                 fprintf(stderr,
 956                                         _("Invalid resize parameter: %s\n"),
 957                                         arg);
 958                                 r_usage++;
 959                                 continue;
 960                         }
 961                         if (resize <= ext2fs_blocks_count(param)) {
 962                                 fprintf(stderr, "%s",
 963                                         _("The resize maximum must be greater "
 964                                           "than the filesystem size.\n"));
 965                                 r_usage++;
 966                                 continue;
 967                         }
 968
 969                         blocksize = EXT2_BLOCK_SIZE(param);
 970                         bpg = param->s_blocks_per_group;
 971                         if (!bpg)
 972                                 bpg = blocksize * 8;
 973                         gdpb = EXT2_DESC_PER_BLOCK(param);
 974                         group_desc_count = (__u32) ext2fs_div64_ceil(
 975                                 ext2fs_blocks_count(param), bpg);
 976                         desc_blocks = (group_desc_count +
 977                                        gdpb - 1) / gdpb;
 978                         rsv_groups = ext2fs_div64_ceil(resize, bpg);
 979                         rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) -
 980                                 desc_blocks;
 981                         if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param))
 982                                 rsv_gdb = EXT2_ADDR_PER_BLOCK(param);
 983
 984                         if (rsv_gdb > 0) {
 985                                 if (param->s_rev_level == EXT2_GOOD_OLD_REV) {
 986                                         fprintf(stderr, "%s",
 987         _("On-line resizing not supported with revision 0 filesystems\n"));
 988                                         free(buf);
 989                                         exit(1);
 990                                 }
 991                                 ext2fs_set_feature_resize_inode(param);
 992
 993                                 param->s_reserved_gdt_blocks = rsv_gdb;
 994                         }
 995                 } else if (!strcmp(token, "test_fs")) {
 996                         param->s_flags |= EXT2_FLAGS_TEST_FILESYS;
 997                 } else if (!strcmp(token, "lazy_itable_init")) {
 998                         if (arg)
 999                                 lazy_itable_init = strtoul(arg, &p, 0);
1000                         else
1001                                 lazy_itable_init = 1;
1002                 } else if (!strcmp(token, "lazy_journal_init")) {
1003                         if (arg)
1004                                 journal_flags |= strtoul(arg, &p, 0) ?
1005                                                 EXT2_MKJOURNAL_LAZYINIT : 0;
1006                         else
1007                                 journal_flags |= EXT2_MKJOURNAL_LAZYINIT;
1008                 } else if (!strcmp(token, "root_owner")) {
1009                         if (arg) {
1010                                 root_uid = strtoul(arg, &p, 0);
1011                                 if (*p != ':') {
1012                                         fprintf(stderr,
1013                                                 _("Invalid root_owner: '%s'\n"),
1014                                                 arg);
1015                                         r_usage++;
1016                                         continue;
1017                                 }
1018                                 p++;
1019                                 root_gid = strtoul(p, &p, 0);
1020                                 if (*p) {
1021                                         fprintf(stderr,
1022                                                 _("Invalid root_owner: '%s'\n"),
1023                                                 arg);
1024                                         r_usage++;
1025                                         continue;
1026                                 }
1027                         } else {
1028                                 root_uid = getuid();
1029                                 root_gid = getgid();
1030                         }
1031                 } else if (!strcmp(token, "discard")) {
1032                         discard = 1;
1033                 } else if (!strcmp(token, "nodiscard")) {
1034                         discard = 0;
1035                 } else if (!strcmp(token, "quotatype")) {
1036                         char *errtok = NULL;
1037
1038                         if (!arg) {
1039                                 r_usage++;
1040                                 badopt = token;
1041                                 continue;
1042                         }
1043                         quotatype_bits = 0;
1044                         ret = parse_quota_types(arg, &quotatype_bits, &errtok);
1045                         if (ret) {
1046                                 if (errtok) {
1047                                         fprintf(stderr,
1048                                 "Failed to parse quota type at %s", errtok);
1049                                         free(errtok);
1050                                 } else
1051                                         com_err(program_name, ret,
1052                                                 "while parsing quota type");
1053                                 r_usage++;
1054                                 badopt = token;
1055                                 continue;
1056                         }
1057                 } else if (!strcmp(token, "android_sparse")) {
1058                         android_sparse_file = 1;
1059                 } else if (!strcmp(token, "encoding")) {
1060                         if (!arg) {
1061                                 r_usage++;
1062                                 continue;
1063                         }
1064
1065                         encoding = e2p_str2encoding(arg);
1066                         if (encoding < 0) {
1067                                 fprintf(stderr, _("Invalid encoding: %s"), arg);
1068                                 r_usage++;
1069                                 continue;
1070                         }
1071                         param->s_encoding = encoding;
1072                         ext2fs_set_feature_casefold(param);
1073                 } else if (!strcmp(token, "encoding_flags")) {
1074                         if (!arg) {
1075                                 r_usage++;
1076                                 continue;
1077                         }
1078                         encoding_flags = arg;
1079                 } else {
1080                         r_usage++;
1081                         badopt = token;
1082                 }
1083         }
1084         if (r_usage) {
1085                 fprintf(stderr, _("\nBad option(s) specified: %s\n\n"
1086                         "Extended options are separated by commas, "
1087                         "and may take an argument which\n"
1088                         "\tis set off by an equals ('=') sign.\n\n"
1089                         "Valid extended options are:\n"
1090                         "\tmmp_update_interval=<interval>\n"
1091                         "\tnum_backup_sb=<0|1|2>\n"
1092                         "\tstride=<RAID per-disk data chunk in blocks>\n"
1093                         "\tstripe-width=<RAID stride * data disks in blocks>\n"
1094                         "\toffset=<offset to create the file system>\n"
1095                         "\tresize=<resize maximum size in blocks>\n"
1096                         "\tpacked_meta_blocks=<0 to disable, 1 to enable>\n"
1097                         "\tlazy_itable_init=<0 to disable, 1 to enable>\n"
1098                         "\tlazy_journal_init=<0 to disable, 1 to enable>\n"
1099                         "\troot_owner=<uid of root dir>:<gid of root dir>\n"
1100                         "\ttest_fs\n"
1101                         "\tdiscard\n"
1102                         "\tnodiscard\n"
1103                         "\tencoding=<encoding>\n"
1104                         "\tencoding_flags=<flags>\n"
1105                         "\tquotatype=<quota type(s) to be enabled>\n\n"),
1106                         badopt ? badopt : "");
1107                 free(buf);
1108                 exit(1);
1109         }
1110         if (param->s_raid_stride &&
1111             (param->s_raid_stripe_width % param->s_raid_stride) != 0)
1112                 fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even "
1113                                   "multiple of stride %u.\n\n"),
1114                         param->s_raid_stripe_width, param->s_raid_stride);
1115
1116         if (ext2fs_has_feature_casefold(param)) {
1117                 param->s_encoding_flags =
1118                         e2p_get_encoding_flags(param->s_encoding);
1119
1120                 if (encoding_flags &&
1121                     e2p_str2encoding_flags(param->s_encoding, encoding_flags,
1122                                            &param->s_encoding_flags)) {
1123                         fprintf(stderr, _("error: Invalid encoding flag: %s\n"),
1124                                 encoding_flags);
1125                         free(buf);
1126                         exit(1);
1127                 }
1128         } else if (encoding_flags) {
1129                 fprintf(stderr, _("error: An encoding must be explicitly "
1130                                   "specified when passing encoding-flags\n"));
1131                 free(buf);
1132                 exit(1);
1133         }
1134
1135         free(buf);
1136 }
1137
1138 static __u32 ok_features[3] = {
1139         /* Compat */
1140         EXT3_FEATURE_COMPAT_HAS_JOURNAL |
1141                 EXT2_FEATURE_COMPAT_RESIZE_INODE |
1142                 EXT2_FEATURE_COMPAT_DIR_INDEX |
1143                 EXT2_FEATURE_COMPAT_EXT_ATTR |
1144                 EXT4_FEATURE_COMPAT_SPARSE_SUPER2,
1145         /* Incompat */
1146         EXT2_FEATURE_INCOMPAT_FILETYPE|
1147                 EXT3_FEATURE_INCOMPAT_EXTENTS|
1148                 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
1149                 EXT2_FEATURE_INCOMPAT_META_BG|
1150                 EXT4_FEATURE_INCOMPAT_FLEX_BG|
1151                 EXT4_FEATURE_INCOMPAT_EA_INODE|
1152                 EXT4_FEATURE_INCOMPAT_MMP |
1153                 EXT4_FEATURE_INCOMPAT_64BIT|
1154                 EXT4_FEATURE_INCOMPAT_INLINE_DATA|
1155                 EXT4_FEATURE_INCOMPAT_ENCRYPT |
1156                 EXT4_FEATURE_INCOMPAT_CASEFOLD |
1157                 EXT4_FEATURE_INCOMPAT_CSUM_SEED |
1158                 EXT4_FEATURE_INCOMPAT_LARGEDIR,
1159         /* R/O compat */
1160         EXT2_FEATURE_RO_COMPAT_LARGE_FILE|
1161                 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
1162                 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
1163                 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
1164                 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|
1165                 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
1166                 EXT4_FEATURE_RO_COMPAT_BIGALLOC|
1167                 EXT4_FEATURE_RO_COMPAT_QUOTA|
1168                 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|
1169                 EXT4_FEATURE_RO_COMPAT_PROJECT|
1170                 EXT4_FEATURE_RO_COMPAT_VERITY
1171 };
1172
1173
1174 static void syntax_err_report(const char *filename, long err, int line_num)
1175 {
1176         fprintf(stderr,
1177                 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"),
1178                 filename, line_num, error_message(err));
1179         exit(1);
1180 }
1181
1182 static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 };
1183
1184 static void edit_feature(const char *str, __u32 *compat_array)
1185 {
1186         if (!str)
1187                 return;
1188
1189         if (e2p_edit_feature(str, compat_array, ok_features)) {
1190                 fprintf(stderr, _("Invalid filesystem option set: %s\n"),
1191                         str);
1192                 exit(1);
1193         }
1194 }
1195
1196 static void edit_mntopts(const char *str, __u32 *mntopts)
1197 {
1198         if (!str)
1199                 return;
1200
1201         if (e2p_edit_mntopts(str, mntopts, ~0)) {
1202                 fprintf(stderr, _("Invalid mount option set: %s\n"),
1203                         str);
1204                 exit(1);
1205         }
1206 }
1207
1208 struct str_list {
1209         char **list;
1210         int num;
1211         int max;
1212 };
1213
1214 static errcode_t init_list(struct str_list *sl)
1215 {
1216         sl->num = 0;
1217         sl->max = 1;
1218         sl->list = malloc((sl->max+1) * sizeof(char *));
1219         if (!sl->list)
1220                 return ENOMEM;
1221         sl->list[0] = 0;
1222         return 0;
1223 }
1224
1225 static errcode_t push_string(struct str_list *sl, const char *str)
1226 {
1227         char **new_list;
1228
1229         if (sl->num >= sl->max) {
1230                 sl->max += 2;
1231                 new_list = realloc(sl->list, (sl->max+1) * sizeof(char *));
1232                 if (!new_list)
1233                         return ENOMEM;
1234                 sl->list = new_list;
1235         }
1236         sl->list[sl->num] = malloc(strlen(str)+1);
1237         if (sl->list[sl->num] == 0)
1238                 return ENOMEM;
1239         strcpy(sl->list[sl->num], str);
1240         sl->num++;
1241         sl->list[sl->num] = 0;
1242         return 0;
1243 }
1244
1245 static void print_str_list(char **list)
1246 {
1247         char **cpp;
1248
1249         for (cpp = list; *cpp; cpp++) {
1250                 printf("'%s'", *cpp);
1251                 if (cpp[1])
1252                         fputs(", ", stdout);
1253         }
1254         fputc('\n', stdout);
1255 }
1256
1257 /*
1258  * Return TRUE if the profile has the given subsection
1259  */
1260 static int profile_has_subsection(profile_t prof, const char *section,
1261                                   const char *subsection)
1262 {
1263         void                    *state;
1264         const char              *names[4];
1265         char                    *name;
1266         int                     ret = 0;
1267
1268         names[0] = section;
1269         names[1] = subsection;
1270         names[2] = 0;
1271
1272         if (profile_iterator_create(prof, names,
1273                                     PROFILE_ITER_LIST_SECTION |
1274                                     PROFILE_ITER_RELATIONS_ONLY, &state))
1275                 return 0;
1276
1277         if ((profile_iterator(&state, &name, 0) == 0) && name) {
1278                 free(name);
1279                 ret = 1;
1280         }
1281
1282         profile_iterator_free(&state);
1283         return ret;
1284 }
1285
1286 static char **parse_fs_type(const char *fs_type,
1287                             const char *usage_types,
1288                             struct ext2_super_block *sb,
1289                             blk64_t fs_blocks_count,
1290                             char *progname)
1291 {
1292         const char      *ext_type = 0;
1293         char            *parse_str;
1294         char            *profile_type = 0;
1295         char            *cp, *t;
1296         const char      *size_type;
1297         struct str_list list;
1298         unsigned long long meg;
1299         int             is_hurd = for_hurd(creator_os);
1300
1301         if (init_list(&list))
1302                 return 0;
1303
1304         if (fs_type)
1305                 ext_type = fs_type;
1306         else if (is_hurd)
1307                 ext_type = "ext2";
1308         else if (!strcmp(program_name, "mke3fs"))
1309                 ext_type = "ext3";
1310         else if (!strcmp(program_name, "mke4fs"))
1311                 ext_type = "ext4";
1312         else if (progname) {
1313                 ext_type = strrchr(progname, '/');
1314                 if (ext_type)
1315                         ext_type++;
1316                 else
1317                         ext_type = progname;
1318
1319                 if (!strncmp(ext_type, "mkfs.", 5)) {
1320                         ext_type += 5;
1321                         if (ext_type[0] == 0)
1322                                 ext_type = 0;
1323                 } else
1324                         ext_type = 0;
1325         }
1326
1327         if (!ext_type) {
1328                 profile_get_string(profile, "defaults", "fs_type", 0,
1329                                    "ext2", &profile_type);
1330                 ext_type = profile_type;
1331                 if (!strcmp(ext_type, "ext2") && (journal_size != 0))
1332                         ext_type = "ext3";
1333         }
1334
1335
1336         if (!profile_has_subsection(profile, "fs_types", ext_type) &&
1337             strcmp(ext_type, "ext2")) {
1338                 printf(_("\nYour mke2fs.conf file does not define the "
1339                          "%s filesystem type.\n"), ext_type);
1340                 if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") ||
1341                     !strcmp(ext_type, "ext4dev")) {
1342                         printf("%s", _("You probably need to install an "
1343                                        "updated mke2fs.conf file.\n\n"));
1344                 }
1345                 if (!force) {
1346                         printf("%s", _("Aborting...\n"));
1347                         exit(1);
1348                 }
1349         }
1350
1351         meg = (1024 * 1024) / EXT2_BLOCK_SIZE(sb);
1352         if (fs_blocks_count < 3 * meg)
1353                 size_type = "floppy";
1354         else if (fs_blocks_count < 512 * meg)
1355                 size_type = "small";
1356         else if (fs_blocks_count < 4 * 1024 * 1024 * meg)
1357                 size_type = "default";
1358         else if (fs_blocks_count < 16 * 1024 * 1024 * meg)
1359                 size_type = "big";
1360         else
1361                 size_type = "huge";
1362
1363         if (!usage_types)
1364                 usage_types = size_type;
1365
1366         parse_str = malloc(strlen(usage_types)+1);
1367         if (!parse_str) {
1368                 free(profile_type);
1369                 free(list.list);
1370                 return 0;
1371         }
1372         strcpy(parse_str, usage_types);
1373
1374         if (ext_type)
1375                 push_string(&list, ext_type);
1376         cp = parse_str;
1377         while (1) {
1378                 t = strchr(cp, ',');
1379                 if (t)
1380                         *t = '\0';
1381
1382                 if (*cp) {
1383                         if (profile_has_subsection(profile, "fs_types", cp))
1384                                 push_string(&list, cp);
1385                         else if (strcmp(cp, "default") != 0)
1386                                 fprintf(stderr,
1387                                         _("\nWarning: the fs_type %s is not "
1388                                           "defined in mke2fs.conf\n\n"),
1389                                         cp);
1390                 }
1391                 if (t)
1392                         cp = t+1;
1393                 else
1394                         break;
1395         }
1396         free(parse_str);
1397         free(profile_type);
1398         if (is_hurd)
1399                 push_string(&list, "hurd");
1400         return (list.list);
1401 }
1402
1403 char *get_string_from_profile(char **types, const char *opt,
1404                                      const char *def_val)
1405 {
1406         char *ret = 0;
1407         int i;
1408
1409         for (i=0; types[i]; i++);
1410         for (i-=1; i >=0 ; i--) {
1411                 profile_get_string(profile, "fs_types", types[i],
1412                                    opt, 0, &ret);
1413                 if (ret)
1414                         return ret;
1415         }
1416         profile_get_string(profile, "defaults", opt, 0, def_val, &ret);
1417         return (ret);
1418 }
1419
1420 int get_int_from_profile(char **types, const char *opt, int def_val)
1421 {
1422         int ret;
1423         char **cpp;
1424
1425         profile_get_integer(profile, "defaults", opt, 0, def_val, &ret);
1426         for (cpp = types; *cpp; cpp++)
1427                 profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret);
1428         return ret;
1429 }
1430
1431 static unsigned int get_uint_from_profile(char **types, const char *opt,
1432                                         unsigned int def_val)
1433 {
1434         unsigned int ret;
1435         char **cpp;
1436
1437         profile_get_uint(profile, "defaults", opt, 0, def_val, &ret);
1438         for (cpp = types; *cpp; cpp++)
1439                 profile_get_uint(profile, "fs_types", *cpp, opt, ret, &ret);
1440         return ret;
1441 }
1442
1443 static double get_double_from_profile(char **types, const char *opt,
1444                                       double def_val)
1445 {
1446         double ret;
1447         char **cpp;
1448
1449         profile_get_double(profile, "defaults", opt, 0, def_val, &ret);
1450         for (cpp = types; *cpp; cpp++)
1451                 profile_get_double(profile, "fs_types", *cpp, opt, ret, &ret);
1452         return ret;
1453 }
1454
1455 int get_bool_from_profile(char **types, const char *opt, int def_val)
1456 {
1457         int ret;
1458         char **cpp;
1459
1460         profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret);
1461         for (cpp = types; *cpp; cpp++)
1462                 profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret);
1463         return ret;
1464 }
1465
1466 extern const char *mke2fs_default_profile;
1467 static const char *default_files[] = { "<default>", 0 };
1468
1469 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1470 /*
1471  * Sets the geometry of a device (stripe/stride), and returns the
1472  * device's alignment offset, if any, or a negative error.
1473  */
1474 static int get_device_geometry(const char *file,
1475                                struct ext2_super_block *param,
1476                                unsigned int psector_size)
1477 {
1478         int rc = -1;
1479         unsigned int blocksize;
1480         blkid_probe pr;
1481         blkid_topology tp;
1482         unsigned long min_io;
1483         unsigned long opt_io;
1484         struct stat statbuf;
1485
1486         /* Nothing to do for a regular file */
1487         if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode))
1488                 return 0;
1489
1490         pr = blkid_new_probe_from_filename(file);
1491         if (!pr)
1492                 goto out;
1493
1494         tp = blkid_probe_get_topology(pr);
1495         if (!tp)
1496                 goto out;
1497
1498         min_io = blkid_topology_get_minimum_io_size(tp);
1499         opt_io = blkid_topology_get_optimal_io_size(tp);
1500         blocksize = EXT2_BLOCK_SIZE(param);
1501         if ((min_io == 0) && (psector_size > blocksize))
1502                 min_io = psector_size;
1503         if ((opt_io == 0) && min_io)
1504                 opt_io = min_io;
1505         if ((opt_io == 0) && (psector_size > blocksize))
1506                 opt_io = psector_size;
1507
1508         /* setting stripe/stride to blocksize is pointless */
1509         if (min_io > blocksize)
1510                 param->s_raid_stride = min_io / blocksize;
1511         if (opt_io > blocksize)
1512                 param->s_raid_stripe_width = opt_io / blocksize;
1513
1514         rc = blkid_topology_get_alignment_offset(tp);
1515 out:
1516         blkid_free_probe(pr);
1517         return rc;
1518 }
1519 #endif
1520
1521 static void PRS(int argc, char *argv[])
1522 {
1523         int             b, c, flags;
1524         int             cluster_size = 0;
1525         char            *tmp, **cpp;
1526         int             explicit_fssize = 0;
1527         int             blocksize = 0;
1528         int             inode_ratio = 0;
1529         int             inode_size = 0;
1530         unsigned long   flex_bg_size = 0;
1531         double          reserved_ratio = -1.0;
1532         int             lsector_size = 0, psector_size = 0;
1533         int             show_version_only = 0, is_device = 0;
1534         unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */
1535         errcode_t       retval;
1536         char *          oldpath = getenv("PATH");
1537         char *          extended_opts = 0;
1538         char *          fs_type = 0;
1539         char *          usage_types = 0;
1540         /*
1541          * NOTE: A few words about fs_blocks_count and blocksize:
1542          *
1543          * Initially, blocksize is set to zero, which implies 1024.
1544          * If -b is specified, blocksize is updated to the user's value.
1545          *
1546          * Next, the device size or the user's "blocks" command line argument
1547          * is used to set fs_blocks_count; the units are blocksize.
1548          *
1549          * Later, if blocksize hasn't been set and the profile specifies a
1550          * blocksize, then blocksize is updated and fs_blocks_count is scaled
1551          * appropriately.  Note the change in units!
1552          *
1553          * Finally, we complain about fs_blocks_count > 2^32 on a non-64bit fs.
1554          */
1555         blk64_t         fs_blocks_count = 0;
1556         long            sysval;
1557         int             s_opt = -1, r_opt = -1;
1558         char            *fs_features = 0;
1559         int             fs_features_size = 0;
1560         int             use_bsize;
1561         char            *newpath;
1562         int             pathlen = sizeof(PATH_SET) + 1;
1563
1564         if (oldpath)
1565                 pathlen += strlen(oldpath);
1566         newpath = malloc(pathlen);
1567         if (!newpath) {
1568                 fprintf(stderr, "%s",
1569                         _("Couldn't allocate memory for new PATH.\n"));
1570                 exit(1);
1571         }
1572         strcpy(newpath, PATH_SET);
1573
1574         /* Update our PATH to include /sbin  */
1575         if (oldpath) {
1576                 strcat (newpath, ":");
1577                 strcat (newpath, oldpath);
1578         }
1579         putenv (newpath);
1580
1581         /* Determine the system page size if possible */
1582 #ifdef HAVE_SYSCONF
1583 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
1584 #define _SC_PAGESIZE _SC_PAGE_SIZE
1585 #endif
1586 #ifdef _SC_PAGESIZE
1587         sysval = sysconf(_SC_PAGESIZE);
1588         if (sysval > 0)
1589                 sys_page_size = sysval;
1590 #endif /* _SC_PAGESIZE */
1591 #endif /* HAVE_SYSCONF */
1592
1593         if ((tmp = getenv("MKE2FS_CONFIG")) != NULL)
1594                 config_fn[0] = tmp;
1595         profile_set_syntax_err_cb(syntax_err_report);
1596         retval = profile_init(config_fn, &profile);
1597         if (retval == ENOENT) {
1598                 retval = profile_init(default_files, &profile);
1599                 if (retval)
1600                         goto profile_error;
1601                 retval = profile_set_default(profile, mke2fs_default_profile);
1602                 if (retval)
1603                         goto profile_error;
1604         } else if (retval) {
1605 profile_error:
1606                 fprintf(stderr, _("Couldn't init profile successfully"
1607                                   " (error: %ld).\n"), retval);
1608                 exit(1);
1609         }
1610
1611         setbuf(stdout, NULL);
1612         setbuf(stderr, NULL);
1613         add_error_table(&et_ext2_error_table);
1614         add_error_table(&et_prof_error_table);
1615         memset(&fs_param, 0, sizeof(struct ext2_super_block));
1616         fs_param.s_rev_level = 1;  /* Create revision 1 filesystems now */
1617
1618         if (is_before_linux_ver(2, 2, 0))
1619                 fs_param.s_rev_level = 0;
1620
1621         if (argc && *argv) {
1622                 program_name = get_progname(*argv);
1623
1624                 /* If called as mkfs.ext3, create a journal inode */
1625                 if (!strcmp(program_name, "mkfs.ext3") ||
1626                     !strcmp(program_name, "mke3fs"))
1627                         journal_size = -1;
1628         }
1629
1630         while ((c = getopt (argc, argv,
1631                     "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) {
1632                 switch (c) {
1633                 case 'b':
1634                         blocksize = parse_num_blocks2(optarg, -1);
1635                         b = (blocksize > 0) ? blocksize : -blocksize;
1636                         if (b < EXT2_MIN_BLOCK_SIZE ||
1637                             b > EXT2_MAX_BLOCK_SIZE) {
1638                                 com_err(program_name, 0,
1639                                         _("invalid block size - %s"), optarg);
1640                                 exit(1);
1641                         }
1642                         if (blocksize > 4096)
1643                                 fprintf(stderr, _("Warning: blocksize %d not "
1644                                                   "usable on most systems.\n"),
1645                                         blocksize);
1646                         if (blocksize > 0)
1647                                 fs_param.s_log_block_size =
1648                                         int_log2(blocksize >>
1649                                                  EXT2_MIN_BLOCK_LOG_SIZE);
1650                         break;
1651                 case 'c':       /* Check for bad blocks */
1652                         cflag++;
1653                         break;
1654                 case 'C':
1655                         cluster_size = parse_num_blocks2(optarg, -1);
1656                         if (cluster_size <= EXT2_MIN_CLUSTER_SIZE ||
1657                             cluster_size > EXT2_MAX_CLUSTER_SIZE) {
1658                                 com_err(program_name, 0,
1659                                         _("invalid cluster size - %s"),
1660                                         optarg);
1661                                 exit(1);
1662                         }
1663                         break;
1664                 case 'd':
1665                         src_root_dir = optarg;
1666                         break;
1667                 case 'D':
1668                         direct_io = 1;
1669                         break;
1670                 case 'R':
1671                         com_err(program_name, 0, "%s",
1672                                 _("'-R' is deprecated, use '-E' instead"));
1673                         /* fallthrough */
1674                 case 'E':
1675                         extended_opts = optarg;
1676                         break;
1677                 case 'e':
1678                         if (strcmp(optarg, "continue") == 0)
1679                                 errors_behavior = EXT2_ERRORS_CONTINUE;
1680                         else if (strcmp(optarg, "remount-ro") == 0)
1681                                 errors_behavior = EXT2_ERRORS_RO;
1682                         else if (strcmp(optarg, "panic") == 0)
1683                                 errors_behavior = EXT2_ERRORS_PANIC;
1684                         else {
1685                                 com_err(program_name, 0,
1686                                         _("bad error behavior - %s"),
1687                                         optarg);
1688                                 usage();
1689                         }
1690                         break;
1691                 case 'F':
1692                         force++;
1693                         break;
1694                 case 'g':
1695                         fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
1696                         if (*tmp) {
1697                                 com_err(program_name, 0, "%s",
1698                                 _("Illegal number for blocks per group"));
1699                                 exit(1);
1700                         }
1701                         if ((fs_param.s_blocks_per_group % 8) != 0) {
1702                                 com_err(program_name, 0, "%s",
1703                                 _("blocks per group must be multiple of 8"));
1704                                 exit(1);
1705                         }
1706                         break;
1707                 case 'G':
1708                         flex_bg_size = strtoul(optarg, &tmp, 0);
1709                         if (*tmp) {
1710                                 com_err(program_name, 0, "%s",
1711                                         _("Illegal number for flex_bg size"));
1712                                 exit(1);
1713                         }
1714                         if (flex_bg_size < 1 ||
1715                             (flex_bg_size & (flex_bg_size-1)) != 0) {
1716                                 com_err(program_name, 0, "%s",
1717                                         _("flex_bg size must be a power of 2"));
1718                                 exit(1);
1719                         }
1720                         if (flex_bg_size > MAX_32_NUM) {
1721                                 com_err(program_name, 0,
1722                                 _("flex_bg size (%lu) must be less than"
1723                                 " or equal to 2^31"), flex_bg_size);
1724                                 exit(1);
1725                         }
1726                         break;
1727                 case 'i':
1728                         inode_ratio = parse_num_blocks(optarg, -1);
1729                         if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
1730                             inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024) {
1731                                 com_err(program_name, 0,
1732                                         _("invalid inode ratio %s (min %d/max %d)"),
1733                                         optarg, EXT2_MIN_BLOCK_SIZE,
1734                                         EXT2_MAX_BLOCK_SIZE * 1024);
1735                                 exit(1);
1736                         }
1737                         break;
1738                 case 'I':
1739                         inode_size = strtoul(optarg, &tmp, 0);
1740                         if (*tmp) {
1741                                 com_err(program_name, 0,
1742                                         _("invalid inode size - %s"), optarg);
1743                                 exit(1);
1744                         }
1745                         break;
1746                 case 'j':
1747                         if (!journal_size)
1748                                 journal_size = -1;
1749                         break;
1750                 case 'J':
1751                         parse_journal_opts(optarg);
1752                         break;
1753                 case 'K':
1754                         fprintf(stderr, "%s",
1755                                 _("Warning: -K option is deprecated and "
1756                                   "should not be used anymore. Use "
1757                                   "\'-E nodiscard\' extended option "
1758                                   "instead!\n"));
1759                         discard = 0;
1760                         break;
1761                 case 'l':
1762                         bad_blocks_filename = realloc(bad_blocks_filename,
1763                                                       strlen(optarg) + 1);
1764                         if (!bad_blocks_filename) {
1765                                 com_err(program_name, ENOMEM, "%s",
1766                                         _("in malloc for bad_blocks_filename"));
1767                                 exit(1);
1768                         }
1769                         strcpy(bad_blocks_filename, optarg);
1770                         break;
1771                 case 'L':
1772                         volume_label = optarg;
1773                         if (strlen(volume_label) > EXT2_LABEL_LEN) {
1774                                 volume_label[EXT2_LABEL_LEN] = '\0';
1775                                 fprintf(stderr, _("Warning: label too long; will be truncated to '%s'\n\n"),
1776                                         volume_label);
1777                         }
1778                         break;
1779                 case 'm':
1780                         reserved_ratio = strtod(optarg, &tmp);
1781                         if ( *tmp || reserved_ratio > 50 ||
1782                              reserved_ratio < 0) {
1783                                 com_err(program_name, 0,
1784                                         _("invalid reserved blocks percent - %s"),
1785                                         optarg);
1786                                 exit(1);
1787                         }
1788                         break;
1789                 case 'M':
1790                         mount_dir = optarg;
1791                         break;
1792                 case 'n':
1793                         noaction++;
1794                         break;
1795                 case 'N':
1796                         num_inodes = strtoul(optarg, &tmp, 0);
1797                         if (*tmp) {
1798                                 com_err(program_name, 0,
1799                                         _("bad num inodes - %s"), optarg);
1800                                         exit(1);
1801                         }
1802                         break;
1803                 case 'o':
1804                         creator_os = optarg;
1805                         break;
1806                 case 'O':
1807                         retval = ext2fs_resize_mem(fs_features_size,
1808                                    fs_features_size + 1 + strlen(optarg),
1809                                                    &fs_features);
1810                         if (retval) {
1811                                 com_err(program_name, retval,
1812                                      _("while allocating fs_feature string"));
1813                                 exit(1);
1814                         }
1815                         if (fs_features_size)
1816                                 strcat(fs_features, ",");
1817                         else
1818                                 fs_features[0] = 0;
1819                         strcat(fs_features, optarg);
1820                         fs_features_size += 1 + strlen(optarg);
1821                         break;
1822                 case 'q':
1823                         quiet = 1;
1824                         break;
1825                 case 'r':
1826                         r_opt = strtoul(optarg, &tmp, 0);
1827                         if (*tmp) {
1828                                 com_err(program_name, 0,
1829                                         _("bad revision level - %s"), optarg);
1830                                 exit(1);
1831                         }
1832                         if (r_opt > EXT2_MAX_SUPP_REV) {
1833                                 com_err(program_name, EXT2_ET_REV_TOO_HIGH,
1834                                         _("while trying to create revision %d"), r_opt);
1835                                 exit(1);
1836                         }
1837                         fs_param.s_rev_level = r_opt;
1838                         break;
1839                 case 's':       /* deprecated */
1840                         s_opt = atoi(optarg);
1841                         break;
1842                 case 'S':
1843                         super_only = 1;
1844                         break;
1845                 case 't':
1846                         if (fs_type) {
1847                                 com_err(program_name, 0, "%s",
1848                                     _("The -t option may only be used once"));
1849                                 exit(1);
1850                         }
1851                         fs_type = strdup(optarg);
1852                         break;
1853                 case 'T':
1854                         if (usage_types) {
1855                                 com_err(program_name, 0, "%s",
1856                                     _("The -T option may only be used once"));
1857                                 exit(1);
1858                         }
1859                         usage_types = strdup(optarg);
1860                         break;
1861                 case 'U':
1862                         fs_uuid = optarg;
1863                         break;
1864                 case 'v':
1865                         verbose = 1;
1866                         break;
1867                 case 'V':
1868                         /* Print version number and exit */
1869                         show_version_only++;
1870                         break;
1871                 case 'z':
1872                         undo_file = optarg;
1873                         break;
1874                 default:
1875                         usage();
1876                 }
1877         }
1878         if ((optind == argc) && !show_version_only)
1879                 usage();
1880         device_name = argv[optind++];
1881
1882         if (!quiet || show_version_only)
1883                 fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION,
1884                          E2FSPROGS_DATE);
1885
1886         if (show_version_only) {
1887                 fprintf(stderr, _("\tUsing %s\n"),
1888                         error_message(EXT2_ET_BASE));
1889                 exit(0);
1890         }
1891
1892         /*
1893          * If there's no blocksize specified and there is a journal
1894          * device, use it to figure out the blocksize
1895          */
1896         if (blocksize <= 0 && journal_device) {
1897                 ext2_filsys     jfs;
1898                 io_manager      io_ptr;
1899
1900 #ifdef CONFIG_TESTIO_DEBUG
1901                 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1902                         io_ptr = test_io_manager;
1903                         test_io_backing_manager = unix_io_manager;
1904                 } else
1905 #endif
1906                         io_ptr = unix_io_manager;
1907                 retval = ext2fs_open(journal_device,
1908                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
1909                                      0, io_ptr, &jfs);
1910                 if (retval) {
1911                         com_err(program_name, retval,
1912                                 _("while trying to open journal device %s\n"),
1913                                 journal_device);
1914                         exit(1);
1915                 }
1916                 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
1917                         com_err(program_name, 0,
1918                                 _("Journal dev blocksize (%d) smaller than "
1919                                   "minimum blocksize %d\n"), jfs->blocksize,
1920                                 -blocksize);
1921                         exit(1);
1922                 }
1923                 blocksize = jfs->blocksize;
1924                 printf(_("Using journal device's blocksize: %d\n"), blocksize);
1925                 fs_param.s_log_block_size =
1926                         int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1927                 ext2fs_close_free(&jfs);
1928         }
1929
1930         if (optind < argc) {
1931                 fs_blocks_count = parse_num_blocks2(argv[optind++],
1932                                                    fs_param.s_log_block_size);
1933                 if (!fs_blocks_count) {
1934                         com_err(program_name, 0,
1935                                 _("invalid blocks '%s' on device '%s'"),
1936                                 argv[optind - 1], device_name);
1937                         exit(1);
1938                 }
1939         }
1940         if (optind < argc)
1941                 usage();
1942
1943         profile_get_integer(profile, "options", "sync_kludge", 0, 0,
1944                             &sync_kludge);
1945         tmp = getenv("MKE2FS_SYNC");
1946         if (tmp)
1947                 sync_kludge = atoi(tmp);
1948
1949         profile_get_integer(profile, "options", "proceed_delay", 0, 0,
1950                             &proceed_delay);
1951
1952         /* The isatty() test is so we don't break existing scripts */
1953         flags = CREATE_FILE;
1954         if (isatty(0) && isatty(1) && !offset)
1955                 flags |= CHECK_FS_EXIST;
1956         if (!quiet)
1957                 flags |= VERBOSE_CREATE;
1958         if (fs_blocks_count == 0)
1959                 flags |= NO_SIZE;
1960         else
1961                 explicit_fssize = 1;
1962         if (!check_plausibility(device_name, flags, &is_device) && !force)
1963                 proceed_question(proceed_delay);
1964
1965         check_mount(device_name, force, _("filesystem"));
1966
1967         /* Determine the size of the device (if possible) */
1968         if (noaction && fs_blocks_count) {
1969                 dev_size = fs_blocks_count;
1970                 retval = 0;
1971         } else
1972 #ifndef _WIN32
1973                 retval = ext2fs_get_device_size2(device_name,
1974                                                  EXT2_BLOCK_SIZE(&fs_param),
1975                                                  &dev_size);
1976 #else
1977                 retval = ext2fs_get_device_size(device_name,
1978                                                 EXT2_BLOCK_SIZE(&fs_param),
1979                                                 &dev_size);
1980 #endif
1981         if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
1982                 com_err(program_name, retval, "%s",
1983                         _("while trying to determine filesystem size"));
1984                 exit(1);
1985         }
1986         if (!fs_blocks_count) {
1987                 if (retval == EXT2_ET_UNIMPLEMENTED) {
1988                         com_err(program_name, 0, "%s",
1989                                 _("Couldn't determine device size; you "
1990                                 "must specify\nthe size of the "
1991                                 "filesystem\n"));
1992                         exit(1);
1993                 } else {
1994                         if (dev_size == 0) {
1995                                 com_err(program_name, 0, "%s",
1996                                 _("Device size reported to be zero.  "
1997                                   "Invalid partition specified, or\n\t"
1998                                   "partition table wasn't reread "
1999                                   "after running fdisk, due to\n\t"
2000                                   "a modified partition being busy "
2001                                   "and in use.  You may need to reboot\n\t"
2002                                   "to re-read your partition table.\n"
2003                                   ));
2004                                 exit(1);
2005                         }
2006                         fs_blocks_count = dev_size;
2007                         if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param))
2008                                 fs_blocks_count &= ~((blk64_t) ((sys_page_size /
2009                                              EXT2_BLOCK_SIZE(&fs_param))-1));
2010                 }
2011         } else if (!force && is_device && (fs_blocks_count > dev_size)) {
2012                 com_err(program_name, 0, "%s",
2013                         _("Filesystem larger than apparent device size."));
2014                 proceed_question(proceed_delay);
2015         }
2016
2017         if (!fs_type)
2018                 profile_get_string(profile, "devices", device_name,
2019                                    "fs_type", 0, &fs_type);
2020         if (!usage_types)
2021                 profile_get_string(profile, "devices", device_name,
2022                                    "usage_types", 0, &usage_types);
2023
2024         /*
2025          * We have the file system (or device) size, so we can now
2026          * determine the appropriate file system types so the fs can
2027          * be appropriately configured.
2028          */
2029         fs_types = parse_fs_type(fs_type, usage_types, &fs_param,
2030                                  fs_blocks_count ? fs_blocks_count : dev_size,
2031                                  argv[0]);
2032         if (!fs_types) {
2033                 fprintf(stderr, "%s", _("Failed to parse fs types list\n"));
2034                 exit(1);
2035         }
2036
2037         /* Figure out what features should be enabled */
2038
2039         tmp = NULL;
2040         if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) {
2041                 tmp = get_string_from_profile(fs_types, "base_features",
2042                       "sparse_super,large_file,filetype,resize_inode,dir_index");
2043                 edit_feature(tmp, &fs_param.s_feature_compat);
2044                 free(tmp);
2045
2046                 /* And which mount options as well */
2047                 tmp = get_string_from_profile(fs_types, "default_mntopts",
2048                                               "acl,user_xattr");
2049                 edit_mntopts(tmp, &fs_param.s_default_mount_opts);
2050                 if (tmp)
2051                         free(tmp);
2052
2053                 for (cpp = fs_types; *cpp; cpp++) {
2054                         tmp = NULL;
2055                         profile_get_string(profile, "fs_types", *cpp,
2056                                            "features", "", &tmp);
2057                         if (tmp && *tmp)
2058                                 edit_feature(tmp, &fs_param.s_feature_compat);
2059                         if (tmp)
2060                                 free(tmp);
2061                 }
2062                 tmp = get_string_from_profile(fs_types, "default_features",
2063                                               "");
2064         }
2065         /* Mask off features which aren't supported by the Hurd */
2066         if (for_hurd(creator_os)) {
2067                 ext2fs_clear_feature_filetype(&fs_param);
2068                 ext2fs_clear_feature_huge_file(&fs_param);
2069                 ext2fs_clear_feature_metadata_csum(&fs_param);
2070                 ext2fs_clear_feature_ea_inode(&fs_param);
2071                 ext2fs_clear_feature_casefold(&fs_param);
2072         }
2073         edit_feature(fs_features ? fs_features : tmp,
2074                      &fs_param.s_feature_compat);
2075         if (tmp)
2076                 free(tmp);
2077         (void) ext2fs_free_mem(&fs_features);
2078         /*
2079          * If the user specified features incompatible with the Hurd, complain
2080          */
2081         if (for_hurd(creator_os)) {
2082                 if (ext2fs_has_feature_filetype(&fs_param)) {
2083                         fprintf(stderr, "%s", _("The HURD does not support the "
2084                                                 "filetype feature.\n"));
2085                         exit(1);
2086                 }
2087                 if (ext2fs_has_feature_huge_file(&fs_param)) {
2088                         fprintf(stderr, "%s", _("The HURD does not support the "
2089                                                 "huge_file feature.\n"));
2090                         exit(1);
2091                 }
2092                 if (ext2fs_has_feature_metadata_csum(&fs_param)) {
2093                         fprintf(stderr, "%s", _("The HURD does not support the "
2094                                                 "metadata_csum feature.\n"));
2095                         exit(1);
2096                 }
2097                 if (ext2fs_has_feature_ea_inode(&fs_param)) {
2098                         fprintf(stderr, "%s", _("The HURD does not support the "
2099                                                 "ea_inode feature.\n"));
2100                         exit(1);
2101                 }
2102         }
2103
2104         /* Get the hardware sector sizes, if available */
2105         retval = ext2fs_get_device_sectsize(device_name, &lsector_size);
2106         if (retval) {
2107                 com_err(program_name, retval, "%s",
2108                         _("while trying to determine hardware sector size"));
2109                 exit(1);
2110         }
2111         retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size);
2112         if (retval) {
2113                 com_err(program_name, retval, "%s",
2114                         _("while trying to determine physical sector size"));
2115                 exit(1);
2116         }
2117
2118         tmp = getenv("MKE2FS_DEVICE_SECTSIZE");
2119         if (tmp != NULL)
2120                 lsector_size = atoi(tmp);
2121         tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE");
2122         if (tmp != NULL)
2123                 psector_size = atoi(tmp);
2124
2125         /* Older kernels may not have physical/logical distinction */
2126         if (!psector_size)
2127                 psector_size = lsector_size;
2128
2129         if (blocksize <= 0) {
2130                 use_bsize = get_int_from_profile(fs_types, "blocksize", 4096);
2131
2132                 if (use_bsize == -1) {
2133                         use_bsize = sys_page_size;
2134                         if (is_before_linux_ver(2, 6, 0) && use_bsize > 4096)
2135                                 use_bsize = 4096;
2136                 }
2137                 if (lsector_size && use_bsize < lsector_size)
2138                         use_bsize = lsector_size;
2139                 if ((blocksize < 0) && (use_bsize < (-blocksize)))
2140                         use_bsize = -blocksize;
2141                 blocksize = use_bsize;
2142                 fs_blocks_count /= (blocksize / 1024);
2143         } else {
2144                 if (blocksize < lsector_size) {                 /* Impossible */
2145                         com_err(program_name, EINVAL, "%s",
2146                                 _("while setting blocksize; too small "
2147                                   "for device\n"));
2148                         exit(1);
2149                 } else if ((blocksize < psector_size) &&
2150                            (psector_size <= sys_page_size)) {   /* Suboptimal */
2151                         fprintf(stderr, _("Warning: specified blocksize %d is "
2152                                 "less than device physical sectorsize %d\n"),
2153                                 blocksize, psector_size);
2154                 }
2155         }
2156
2157         fs_param.s_log_block_size =
2158                 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
2159
2160         /*
2161          * We now need to do a sanity check of fs_blocks_count for
2162          * 32-bit vs 64-bit block number support.
2163          */
2164         if ((fs_blocks_count > MAX_32_NUM) &&
2165             ext2fs_has_feature_64bit(&fs_param))
2166                 ext2fs_clear_feature_resize_inode(&fs_param);
2167         if ((fs_blocks_count > MAX_32_NUM) &&
2168             !ext2fs_has_feature_64bit(&fs_param) &&
2169             get_bool_from_profile(fs_types, "auto_64-bit_support", 0)) {
2170                 ext2fs_set_feature_64bit(&fs_param);
2171                 ext2fs_clear_feature_resize_inode(&fs_param);
2172         }
2173         if ((fs_blocks_count > MAX_32_NUM) &&
2174             !ext2fs_has_feature_64bit(&fs_param)) {
2175                 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2176                                   "too big to be expressed\n\t"
2177                                   "in 32 bits using a blocksize of %d.\n"),
2178                         program_name, fs_blocks_count, device_name,
2179                         EXT2_BLOCK_SIZE(&fs_param));
2180                 exit(1);
2181         }
2182         /*
2183          * Guard against group descriptor count overflowing... Mostly to avoid
2184          * strange results for absurdly large devices.  This is in log2:
2185          * (blocksize) * (bits per byte) * (maximum number of block groups)
2186          */
2187         if (fs_blocks_count >
2188             (1ULL << (EXT2_BLOCK_SIZE_BITS(&fs_param) + 3 + 32)) - 1) {
2189                 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2190                                   "too big to create\n\t"
2191                                   "a filesystem using a blocksize of %d.\n"),
2192                         program_name, fs_blocks_count, device_name,
2193                         EXT2_BLOCK_SIZE(&fs_param));
2194                 exit(1);
2195         }
2196
2197         ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2198
2199         if (ext2fs_has_feature_journal_dev(&fs_param)) {
2200                 int i;
2201
2202                 for (i=0; fs_types[i]; i++) {
2203                         free(fs_types[i]);
2204                         fs_types[i] = 0;
2205                 }
2206                 fs_types[0] = strdup("journal");
2207                 fs_types[1] = 0;
2208         }
2209
2210         if (verbose) {
2211                 fputs(_("fs_types for mke2fs.conf resolution: "), stdout);
2212                 print_str_list(fs_types);
2213         }
2214
2215         if (r_opt == EXT2_GOOD_OLD_REV &&
2216             (fs_param.s_feature_compat || fs_param.s_feature_incompat ||
2217              fs_param.s_feature_ro_compat)) {
2218                 fprintf(stderr, "%s", _("Filesystem features not supported "
2219                                         "with revision 0 filesystems\n"));
2220                 exit(1);
2221         }
2222
2223         if (s_opt > 0) {
2224                 if (r_opt == EXT2_GOOD_OLD_REV) {
2225                         fprintf(stderr, "%s",
2226                                 _("Sparse superblocks not supported "
2227                                   "with revision 0 filesystems\n"));
2228                         exit(1);
2229                 }
2230                 ext2fs_set_feature_sparse_super(&fs_param);
2231         } else if (s_opt == 0)
2232                 ext2fs_clear_feature_sparse_super(&fs_param);
2233
2234         if (journal_size != 0) {
2235                 if (r_opt == EXT2_GOOD_OLD_REV) {
2236                         fprintf(stderr, "%s", _("Journals not supported with "
2237                                                 "revision 0 filesystems\n"));
2238                         exit(1);
2239                 }
2240                 ext2fs_set_feature_journal(&fs_param);
2241         }
2242
2243         /* Get reserved_ratio from profile if not specified on cmd line. */
2244         if (reserved_ratio < 0.0) {
2245                 reserved_ratio = get_double_from_profile(
2246                                         fs_types, "reserved_ratio", 5.0);
2247                 if (reserved_ratio > 50 || reserved_ratio < 0) {
2248                         com_err(program_name, 0,
2249                                 _("invalid reserved blocks percent - %lf"),
2250                                 reserved_ratio);
2251                         exit(1);
2252                 }
2253         }
2254
2255         if (ext2fs_has_feature_journal_dev(&fs_param)) {
2256                 reserved_ratio = 0;
2257                 fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
2258                 fs_param.s_feature_compat = 0;
2259                 fs_param.s_feature_ro_compat &=
2260                                         EXT4_FEATURE_RO_COMPAT_METADATA_CSUM;
2261         }
2262
2263         /* Check the user's mkfs options for 64bit */
2264         if (ext2fs_has_feature_64bit(&fs_param) &&
2265             !ext2fs_has_feature_extents(&fs_param)) {
2266                 printf("%s", _("Extents MUST be enabled for a 64-bit "
2267                                "filesystem.  Pass -O extents to rectify.\n"));
2268                 exit(1);
2269         }
2270
2271         /* Set first meta blockgroup via an environment variable */
2272         /* (this is mostly for debugging purposes) */
2273         if (ext2fs_has_feature_meta_bg(&fs_param) &&
2274             (tmp = getenv("MKE2FS_FIRST_META_BG")))
2275                 fs_param.s_first_meta_bg = atoi(tmp);
2276         if (ext2fs_has_feature_bigalloc(&fs_param)) {
2277                 if (!cluster_size)
2278                         cluster_size = get_int_from_profile(fs_types,
2279                                                             "cluster_size",
2280                                                             blocksize*16);
2281                 fs_param.s_log_cluster_size =
2282                         int_log2(cluster_size >> EXT2_MIN_CLUSTER_LOG_SIZE);
2283                 if (fs_param.s_log_cluster_size &&
2284                     fs_param.s_log_cluster_size < fs_param.s_log_block_size) {
2285                         com_err(program_name, 0, "%s",
2286                                 _("The cluster size may not be "
2287                                   "smaller than the block size.\n"));
2288                         exit(1);
2289                 }
2290         } else if (cluster_size) {
2291                 com_err(program_name, 0, "%s",
2292                         _("specifying a cluster size requires the "
2293                           "bigalloc feature"));
2294                 exit(1);
2295         } else
2296                 fs_param.s_log_cluster_size = fs_param.s_log_block_size;
2297
2298         if (inode_ratio == 0) {
2299                 inode_ratio = get_int_from_profile(fs_types, "inode_ratio",
2300                                                    8192);
2301                 if (inode_ratio < blocksize)
2302                         inode_ratio = blocksize;
2303                 if (inode_ratio < EXT2_CLUSTER_SIZE(&fs_param))
2304                         inode_ratio = EXT2_CLUSTER_SIZE(&fs_param);
2305         }
2306
2307 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
2308         retval = get_device_geometry(device_name, &fs_param,
2309                                      (unsigned int) psector_size);
2310         if (retval < 0) {
2311                 fprintf(stderr,
2312                         _("warning: Unable to get device geometry for %s\n"),
2313                         device_name);
2314         } else if (retval) {
2315                 printf(_("%s alignment is offset by %lu bytes.\n"),
2316                        device_name, retval);
2317                 printf(_("This may result in very poor performance, "
2318                           "(re)-partitioning suggested.\n"));
2319         }
2320 #endif
2321
2322         num_backups = get_int_from_profile(fs_types, "num_backup_sb", 2);
2323
2324         blocksize = EXT2_BLOCK_SIZE(&fs_param);
2325
2326         /*
2327          * Initialize s_desc_size so that the parse_extended_opts()
2328          * can correctly handle "-E resize=NNN" if the 64-bit option
2329          * is set.
2330          */
2331         if (ext2fs_has_feature_64bit(&fs_param))
2332                 fs_param.s_desc_size = EXT2_MIN_DESC_SIZE_64BIT;
2333
2334         /* This check should happen beyond the last assignment to blocksize */
2335         if (blocksize > sys_page_size) {
2336                 if (!force) {
2337                         com_err(program_name, 0,
2338                                 _("%d-byte blocks too big for system (max %d)"),
2339                                 blocksize, sys_page_size);
2340                         proceed_question(proceed_delay);
2341                 }
2342                 fprintf(stderr, _("Warning: %d-byte blocks too big for system "
2343                                   "(max %d), forced to continue\n"),
2344                         blocksize, sys_page_size);
2345         }
2346
2347         /* Metadata checksumming wasn't totally stable before 3.18. */
2348         if (is_before_linux_ver(3, 18, 0) &&
2349             ext2fs_has_feature_metadata_csum(&fs_param))
2350                 fprintf(stderr, _("Suggestion: Use Linux kernel >= 3.18 for "
2351                         "improved stability of the metadata and journal "
2352                         "checksum features.\n"));
2353
2354         /*
2355          * On newer kernels we do have lazy_itable_init support. So pick the
2356          * right default in case ext4 module is not loaded.
2357          */
2358         if (is_before_linux_ver(2, 6, 37))
2359                 lazy_itable_init = 0;
2360         else
2361                 lazy_itable_init = 1;
2362
2363         if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0)
2364                 lazy_itable_init = 1;
2365
2366         lazy_itable_init = get_bool_from_profile(fs_types,
2367                                                  "lazy_itable_init",
2368                                                  lazy_itable_init);
2369         discard = get_bool_from_profile(fs_types, "discard" , discard);
2370         journal_flags |= get_bool_from_profile(fs_types,
2371                                                "lazy_journal_init", 0) ?
2372                                                EXT2_MKJOURNAL_LAZYINIT : 0;
2373         journal_flags |= EXT2_MKJOURNAL_NO_MNT_CHECK;
2374
2375         if (!journal_location_string)
2376                 journal_location_string = get_string_from_profile(fs_types,
2377                                                 "journal_location", "");
2378         if ((journal_location == ~0ULL) && journal_location_string &&
2379             *journal_location_string)
2380                 journal_location = parse_num_blocks2(journal_location_string,
2381                                                 fs_param.s_log_block_size);
2382         free(journal_location_string);
2383
2384         packed_meta_blocks = get_bool_from_profile(fs_types,
2385                                                    "packed_meta_blocks", 0);
2386         if (packed_meta_blocks)
2387                 journal_location = 0;
2388
2389         if (ext2fs_has_feature_casefold(&fs_param)) {
2390                 char *ef, *en = get_string_from_profile(fs_types,
2391                                                         "encoding", "utf8");
2392                 int encoding = e2p_str2encoding(en);
2393
2394                 if (encoding < 0) {
2395                         com_err(program_name, 0,
2396                                 _("Unknown filename encoding from profile: %s"),
2397                                 en);
2398                         exit(1);
2399                 }
2400                 free(en);
2401                 fs_param.s_encoding = encoding;
2402                 ef = get_string_from_profile(fs_types, "encoding_flags", NULL);
2403                 if (ef) {
2404                         if (e2p_str2encoding_flags(encoding, ef,
2405                                         &fs_param.s_encoding_flags) < 0) {
2406                                 com_err(program_name, 0,
2407                         _("Unknown encoding flags from profile: %s"), ef);
2408                                 exit(1);
2409                         }
2410                         free(ef);
2411                 } else
2412                         fs_param.s_encoding_flags =
2413                                 e2p_get_encoding_flags(encoding);
2414         }
2415
2416         /* Get options from profile */
2417         for (cpp = fs_types; *cpp; cpp++) {
2418                 tmp = NULL;
2419                 profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp);
2420                         if (tmp && *tmp)
2421                                 parse_extended_opts(&fs_param, tmp);
2422                         free(tmp);
2423         }
2424
2425         if (extended_opts)
2426                 parse_extended_opts(&fs_param, extended_opts);
2427
2428         if (explicit_fssize == 0 && offset > 0) {
2429                 fs_blocks_count -= offset / EXT2_BLOCK_SIZE(&fs_param);
2430                 ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2431                 fprintf(stderr,
2432                         _("\nWarning: offset specified without an "
2433                           "explicit file system size.\n"
2434                           "Creating a file system with %llu blocks "
2435                           "but this might\n"
2436                           "not be what you want.\n\n"),
2437                         (unsigned long long) fs_blocks_count);
2438         }
2439
2440         if (quotatype_bits & QUOTA_PRJ_BIT)
2441                 ext2fs_set_feature_project(&fs_param);
2442
2443         if (ext2fs_has_feature_project(&fs_param)) {
2444                 quotatype_bits |= QUOTA_PRJ_BIT;
2445                 if (inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2446                         com_err(program_name, 0,
2447                                 _("%d byte inodes are too small for "
2448                                   "project quota"),
2449                                 inode_size);
2450                         exit(1);
2451                 }
2452                 if (inode_size == 0) {
2453                         inode_size = get_int_from_profile(fs_types,
2454                                                           "inode_size", 0);
2455                         if (inode_size <= EXT2_GOOD_OLD_INODE_SIZE*2)
2456                                 inode_size = EXT2_GOOD_OLD_INODE_SIZE*2;
2457                 }
2458         }
2459
2460         if (ext2fs_has_feature_casefold(&fs_param) &&
2461             ext2fs_has_feature_encrypt(&fs_param)) {
2462                 com_err(program_name, 0, "%s",
2463                         _("The encrypt and casefold features are not "
2464                           "compatible.\nThey can not be both enabled "
2465                           "simultaneously.\n"));
2466                       exit (1);
2467         }
2468
2469         /* Don't allow user to set both metadata_csum and uninit_bg bits. */
2470         if (ext2fs_has_feature_metadata_csum(&fs_param) &&
2471             ext2fs_has_feature_gdt_csum(&fs_param))
2472                 ext2fs_clear_feature_gdt_csum(&fs_param);
2473
2474         /* Can't support bigalloc feature without extents feature */
2475         if (ext2fs_has_feature_bigalloc(&fs_param) &&
2476             !ext2fs_has_feature_extents(&fs_param)) {
2477                 com_err(program_name, 0, "%s",
2478                         _("Can't support bigalloc feature without "
2479                           "extents feature"));
2480                 exit(1);
2481         }
2482
2483         if (ext2fs_has_feature_meta_bg(&fs_param) &&
2484             ext2fs_has_feature_resize_inode(&fs_param)) {
2485                 fprintf(stderr, "%s", _("The resize_inode and meta_bg "
2486                                         "features are not compatible.\n"
2487                                         "They can not be both enabled "
2488                                         "simultaneously.\n"));
2489                 exit(1);
2490         }
2491
2492         if (!quiet && ext2fs_has_feature_bigalloc(&fs_param))
2493                 fprintf(stderr, "%s", _("\nWarning: the bigalloc feature is "
2494                                   "still under development\n"
2495                                   "See https://ext4.wiki.kernel.org/"
2496                                   "index.php/Bigalloc for more information\n\n"));
2497
2498         /*
2499          * Since sparse_super is the default, we would only have a problem
2500          * here if it was explicitly disabled.
2501          */
2502         if (ext2fs_has_feature_resize_inode(&fs_param) &&
2503             !ext2fs_has_feature_sparse_super(&fs_param)) {
2504                 com_err(program_name, 0, "%s",
2505                         _("reserved online resize blocks not supported "
2506                           "on non-sparse filesystem"));
2507                 exit(1);
2508         }
2509
2510         if (fs_param.s_blocks_per_group) {
2511                 if (fs_param.s_blocks_per_group < 256 ||
2512                     fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) {
2513                         com_err(program_name, 0, "%s",
2514                                 _("blocks per group count out of range"));
2515                         exit(1);
2516                 }
2517         }
2518
2519         /*
2520          * If the bigalloc feature is enabled, then the -g option will
2521          * specify the number of clusters per group.
2522          */
2523         if (ext2fs_has_feature_bigalloc(&fs_param)) {
2524                 fs_param.s_clusters_per_group = fs_param.s_blocks_per_group;
2525                 fs_param.s_blocks_per_group = 0;
2526         }
2527
2528         if (inode_size == 0)
2529                 inode_size = get_int_from_profile(fs_types, "inode_size", 0);
2530         if (!flex_bg_size && ext2fs_has_feature_flex_bg(&fs_param))
2531                 flex_bg_size = get_uint_from_profile(fs_types,
2532                                                      "flex_bg_size", 16);
2533         if (flex_bg_size) {
2534                 if (!ext2fs_has_feature_flex_bg(&fs_param)) {
2535                         com_err(program_name, 0, "%s",
2536                                 _("Flex_bg feature not enabled, so "
2537                                   "flex_bg size may not be specified"));
2538                         exit(1);
2539                 }
2540                 fs_param.s_log_groups_per_flex = int_log2(flex_bg_size);
2541         }
2542
2543         if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) {
2544                 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
2545                     inode_size > EXT2_BLOCK_SIZE(&fs_param) ||
2546                     inode_size & (inode_size - 1)) {
2547                         com_err(program_name, 0,
2548                                 _("invalid inode size %d (min %d/max %d)"),
2549                                 inode_size, EXT2_GOOD_OLD_INODE_SIZE,
2550                                 blocksize);
2551                         exit(1);
2552                 }
2553                 fs_param.s_inode_size = inode_size;
2554         }
2555
2556         /*
2557          * If inode size is 128 and inline data is enabled, we need
2558          * to notify users that inline data will never be useful.
2559          */
2560         if (ext2fs_has_feature_inline_data(&fs_param) &&
2561             fs_param.s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2562                 com_err(program_name, 0,
2563                         _("%d byte inodes are too small for inline data; "
2564                           "specify larger size"),
2565                         fs_param.s_inode_size);
2566                 exit(1);
2567         }
2568
2569         /* Make sure number of inodes specified will fit in 32 bits */
2570         if (num_inodes == 0) {
2571                 unsigned long long n;
2572                 n = ext2fs_blocks_count(&fs_param) * blocksize / inode_ratio;
2573                 if (n > MAX_32_NUM) {
2574                         if (ext2fs_has_feature_64bit(&fs_param))
2575                                 num_inodes = MAX_32_NUM;
2576                         else {
2577                                 com_err(program_name, 0,
2578                                         _("too many inodes (%llu), raise "
2579                                           "inode ratio?"), n);
2580                                 exit(1);
2581                         }
2582                 }
2583         } else if (num_inodes > MAX_32_NUM) {
2584                 com_err(program_name, 0,
2585                         _("too many inodes (%llu), specify < 2^32 inodes"),
2586                           num_inodes);
2587                 exit(1);
2588         }
2589         /*
2590          * Calculate number of inodes based on the inode ratio
2591          */
2592         fs_param.s_inodes_count = num_inodes ? num_inodes :
2593                 (ext2fs_blocks_count(&fs_param) * blocksize) / inode_ratio;
2594
2595         if ((((unsigned long long)fs_param.s_inodes_count) *
2596              (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >=
2597             ((ext2fs_blocks_count(&fs_param)) *
2598              EXT2_BLOCK_SIZE(&fs_param))) {
2599                 com_err(program_name, 0, _("inode_size (%u) * inodes_count "
2600                                           "(%u) too big for a\n\t"
2601                                           "filesystem with %llu blocks, "
2602                                           "specify higher inode_ratio (-i)\n\t"
2603                                           "or lower inode count (-N).\n"),
2604                         inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE,
2605                         fs_param.s_inodes_count,
2606                         (unsigned long long) ext2fs_blocks_count(&fs_param));
2607                 exit(1);
2608         }
2609
2610         /*
2611          * Calculate number of blocks to reserve
2612          */
2613         ext2fs_r_blocks_count_set(&fs_param, reserved_ratio *
2614                                   ext2fs_blocks_count(&fs_param) / 100.0);
2615
2616         if (ext2fs_has_feature_sparse_super2(&fs_param)) {
2617                 if (num_backups >= 1)
2618                         fs_param.s_backup_bgs[0] = 1;
2619                 if (num_backups >= 2)
2620                         fs_param.s_backup_bgs[1] = ~0;
2621         }
2622
2623         free(fs_type);
2624         free(usage_types);
2625 }
2626
2627 static int should_do_undo(const char *name)
2628 {
2629         errcode_t retval;
2630         io_channel channel;
2631         __u16   s_magic;
2632         struct ext2_super_block super;
2633         io_manager manager = unix_io_manager;
2634         int csum_flag, force_undo;
2635
2636         csum_flag = ext2fs_has_feature_metadata_csum(&fs_param) ||
2637                     ext2fs_has_feature_gdt_csum(&fs_param);
2638         force_undo = get_int_from_profile(fs_types, "force_undo", 0);
2639         if (!force_undo && (!csum_flag || !lazy_itable_init))
2640                 return 0;
2641
2642         retval = manager->open(name, IO_FLAG_EXCLUSIVE,  &channel);
2643         if (retval) {
2644                 /*
2645                  * We don't handle error cases instead we
2646                  * declare that the file system doesn't exist
2647                  * and let the rest of mke2fs take care of
2648                  * error
2649                  */
2650                 retval = 0;
2651                 goto open_err_out;
2652         }
2653
2654         io_channel_set_blksize(channel, SUPERBLOCK_OFFSET);
2655         retval = io_channel_read_blk64(channel, 1, -SUPERBLOCK_SIZE, &super);
2656         if (retval) {
2657                 retval = 0;
2658                 goto err_out;
2659         }
2660
2661 #if defined(WORDS_BIGENDIAN)
2662         s_magic = ext2fs_swab16(super.s_magic);
2663 #else
2664         s_magic = super.s_magic;
2665 #endif
2666
2667         if (s_magic == EXT2_SUPER_MAGIC)
2668                 retval = 1;
2669
2670 err_out:
2671         io_channel_close(channel);
2672
2673 open_err_out:
2674
2675         return retval;
2676 }
2677
2678 static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr)
2679 {
2680         errcode_t retval = ENOMEM;
2681         char *tdb_dir = NULL, *tdb_file = NULL;
2682         char *dev_name, *tmp_name;
2683         int free_tdb_dir = 0;
2684
2685         /* (re)open a specific undo file */
2686         if (undo_file && undo_file[0] != 0) {
2687                 retval = set_undo_io_backing_manager(*io_ptr);
2688                 if (retval)
2689                         goto err;
2690                 *io_ptr = undo_io_manager;
2691                 retval = set_undo_io_backup_file(undo_file);
2692                 if (retval)
2693                         goto err;
2694                 printf(_("Overwriting existing filesystem; this can be undone "
2695                          "using the command:\n"
2696                          "    e2undo %s %s\n\n"), undo_file, name);
2697                 return retval;
2698         }
2699
2700         /*
2701          * Configuration via a conf file would be
2702          * nice
2703          */
2704         tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
2705         if (!tdb_dir) {
2706                 profile_get_string(profile, "defaults",
2707                                    "undo_dir", 0, "/var/lib/e2fsprogs",
2708                                    &tdb_dir);
2709                 free_tdb_dir = 1;
2710         }
2711
2712         if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
2713             access(tdb_dir, W_OK)) {
2714                 if (free_tdb_dir)
2715                         free(tdb_dir);
2716                 return 0;
2717         }
2718
2719         tmp_name = strdup(name);
2720         if (!tmp_name)
2721                 goto errout;
2722         dev_name = basename(tmp_name);
2723         tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
2724         if (!tdb_file) {
2725                 free(tmp_name);
2726                 goto errout;
2727         }
2728         sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, dev_name);
2729         free(tmp_name);
2730
2731         if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
2732                 retval = errno;
2733                 com_err(program_name, retval,
2734                         _("while trying to delete %s"), tdb_file);
2735                 goto errout;
2736         }
2737
2738         retval = set_undo_io_backing_manager(*io_ptr);
2739         if (retval)
2740                 goto errout;
2741         *io_ptr = undo_io_manager;
2742         retval = set_undo_io_backup_file(tdb_file);
2743         if (retval)
2744                 goto errout;
2745         printf(_("Overwriting existing filesystem; this can be undone "
2746                  "using the command:\n"
2747                  "    e2undo %s %s\n\n"), tdb_file, name);
2748
2749         if (free_tdb_dir)
2750                 free(tdb_dir);
2751         free(tdb_file);
2752         return 0;
2753
2754 errout:
2755         if (free_tdb_dir)
2756                 free(tdb_dir);
2757         free(tdb_file);
2758 err:
2759         com_err(program_name, retval, "%s",
2760                 _("while trying to setup undo file\n"));
2761         return retval;
2762 }
2763
2764 static int mke2fs_discard_device(ext2_filsys fs)
2765 {
2766         struct ext2fs_numeric_progress_struct progress;
2767         blk64_t blocks = ext2fs_blocks_count(fs->super);
2768         blk64_t count = DISCARD_STEP_MB;
2769         blk64_t cur;
2770         int retval = 0;
2771
2772         /*
2773          * Let's try if discard really works on the device, so
2774          * we do not print numeric progress resulting in failure
2775          * afterwards.
2776          */
2777         retval = io_channel_discard(fs->io, 0, fs->blocksize);
2778         if (retval)
2779                 return retval;
2780         cur = fs->blocksize;
2781
2782         count *= (1024 * 1024);
2783         count /= fs->blocksize;
2784
2785         ext2fs_numeric_progress_init(fs, &progress,
2786                                      _("Discarding device blocks: "),
2787                                      blocks);
2788         while (cur < blocks) {
2789                 ext2fs_numeric_progress_update(fs, &progress, cur);
2790
2791                 if (cur + count > blocks)
2792                         count = blocks - cur;
2793
2794                 retval = io_channel_discard(fs->io, cur, count);
2795                 if (retval)
2796                         break;
2797                 cur += count;
2798         }
2799
2800         if (retval) {
2801                 ext2fs_numeric_progress_close(fs, &progress,
2802                                       _("failed - "));
2803                 if (!quiet)
2804                         printf("%s\n",error_message(retval));
2805         } else
2806                 ext2fs_numeric_progress_close(fs, &progress,
2807                                       _("done                            \n"));
2808
2809         return retval;
2810 }
2811
2812 static void fix_cluster_bg_counts(ext2_filsys fs)
2813 {
2814         blk64_t         block, num_blocks, last_block, next;
2815         blk64_t         tot_free = 0;
2816         errcode_t       retval;
2817         dgrp_t          group = 0;
2818         int             grp_free = 0;
2819
2820         num_blocks = ext2fs_blocks_count(fs->super);
2821         last_block = ext2fs_group_last_block2(fs, group);
2822         block = fs->super->s_first_data_block;
2823         while (block < num_blocks) {
2824                 retval = ext2fs_find_first_zero_block_bitmap2(fs->block_map,
2825                                                 block, last_block, &next);
2826                 if (retval == 0)
2827                         block = next;
2828                 else {
2829                         block = last_block + 1;
2830                         goto next_bg;
2831                 }
2832
2833                 retval = ext2fs_find_first_set_block_bitmap2(fs->block_map,
2834                                                 block, last_block, &next);
2835                 if (retval)
2836                         next = last_block + 1;
2837                 grp_free += EXT2FS_NUM_B2C(fs, next - block);
2838                 tot_free += next - block;
2839                 block = next;
2840
2841                 if (block > last_block) {
2842                 next_bg:
2843                         ext2fs_bg_free_blocks_count_set(fs, group, grp_free);
2844                         ext2fs_group_desc_csum_set(fs, group);
2845                         grp_free = 0;
2846                         group++;
2847                         last_block = ext2fs_group_last_block2(fs, group);
2848                 }
2849         }
2850         ext2fs_free_blocks_count_set(fs->super, tot_free);
2851 }
2852
2853 static int create_quota_inodes(ext2_filsys fs)
2854 {
2855         quota_ctx_t qctx;
2856         errcode_t retval;
2857
2858         retval = quota_init_context(&qctx, fs, quotatype_bits);
2859         if (retval) {
2860                 com_err(program_name, retval,
2861                         _("while initializing quota context"));
2862                 exit(1);
2863         }
2864         quota_compute_usage(qctx);
2865         retval = quota_write_inode(qctx, quotatype_bits);
2866         if (retval) {
2867                 com_err(program_name, retval,
2868                         _("while writing quota inodes"));
2869                 exit(1);
2870         }
2871         quota_release_context(&qctx);
2872
2873         return 0;
2874 }
2875
2876 static errcode_t set_error_behavior(ext2_filsys fs)
2877 {
2878         char    *arg = NULL;
2879         short   errors = fs->super->s_errors;
2880
2881         arg = get_string_from_profile(fs_types, "errors", NULL);
2882         if (arg == NULL)
2883                 goto try_user;
2884
2885         if (strcmp(arg, "continue") == 0)
2886                 errors = EXT2_ERRORS_CONTINUE;
2887         else if (strcmp(arg, "remount-ro") == 0)
2888                 errors = EXT2_ERRORS_RO;
2889         else if (strcmp(arg, "panic") == 0)
2890                 errors = EXT2_ERRORS_PANIC;
2891         else {
2892                 com_err(program_name, 0,
2893                         _("bad error behavior in profile - %s"),
2894                         arg);
2895                 free(arg);
2896                 return EXT2_ET_INVALID_ARGUMENT;
2897         }
2898         free(arg);
2899
2900 try_user:
2901         if (errors_behavior)
2902                 errors = errors_behavior;
2903
2904         fs->super->s_errors = errors;
2905         return 0;
2906 }
2907
2908 int main (int argc, char *argv[])
2909 {
2910         errcode_t       retval = 0;
2911         ext2_filsys     fs;
2912         badblocks_list  bb_list = 0;
2913         unsigned int    journal_blocks = 0;
2914         unsigned int    i, checkinterval;
2915         int             max_mnt_count;
2916         int             val, hash_alg;
2917         int             flags;
2918         int             old_bitmaps;
2919         io_manager      io_ptr;
2920         char            opt_string[40];
2921         char            *hash_alg_str;
2922         int             itable_zeroed = 0;
2923
2924 #ifdef ENABLE_NLS
2925         setlocale(LC_MESSAGES, "");
2926         setlocale(LC_CTYPE, "");
2927         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
2928         textdomain(NLS_CAT_NAME);
2929         set_com_err_gettext(gettext);
2930 #endif
2931         PRS(argc, argv);
2932
2933 #ifdef CONFIG_TESTIO_DEBUG
2934         if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
2935                 io_ptr = test_io_manager;
2936                 test_io_backing_manager = unix_io_manager;
2937         } else
2938 #endif
2939                 io_ptr = unix_io_manager;
2940
2941         if (undo_file != NULL || should_do_undo(device_name)) {
2942                 retval = mke2fs_setup_tdb(device_name, &io_ptr);
2943                 if (retval)
2944                         exit(1);
2945         }
2946
2947         /*
2948          * Initialize the superblock....
2949          */
2950         flags = EXT2_FLAG_EXCLUSIVE;
2951         if (direct_io)
2952                 flags |= EXT2_FLAG_DIRECT_IO;
2953         profile_get_boolean(profile, "options", "old_bitmaps", 0, 0,
2954                             &old_bitmaps);
2955         if (!old_bitmaps)
2956                 flags |= EXT2_FLAG_64BITS;
2957         /*
2958          * By default, we print how many inode tables or block groups
2959          * or whatever we've written so far.  The quiet flag disables
2960          * this, along with a lot of other output.
2961          */
2962         if (!quiet)
2963                 flags |= EXT2_FLAG_PRINT_PROGRESS;
2964         if (android_sparse_file) {
2965                 char *android_sparse_params = malloc(strlen(device_name) + 48);
2966
2967                 if (!android_sparse_params) {
2968                         com_err(program_name, ENOMEM, "%s",
2969                                 _("in malloc for android_sparse_params"));
2970                         exit(1);
2971                 }
2972                 sprintf(android_sparse_params, "(%s):%u:%u",
2973                          device_name, fs_param.s_blocks_count,
2974                          1024 << fs_param.s_log_block_size);
2975                 retval = ext2fs_initialize(android_sparse_params, flags,
2976                                            &fs_param, sparse_io_manager, &fs);
2977                 free(android_sparse_params);
2978         } else
2979                 retval = ext2fs_initialize(device_name, flags, &fs_param,
2980                                            io_ptr, &fs);
2981         if (retval) {
2982                 com_err(device_name, retval, "%s",
2983                         _("while setting up superblock"));
2984                 exit(1);
2985         }
2986         fs->progress_ops = &ext2fs_numeric_progress_ops;
2987
2988         /* Set the error behavior */
2989         retval = set_error_behavior(fs);
2990         if (retval)
2991                 usage();
2992
2993         /* Check the user's mkfs options for metadata checksumming */
2994         if (!quiet &&
2995             !ext2fs_has_feature_journal_dev(fs->super) &&
2996             ext2fs_has_feature_metadata_csum(fs->super)) {
2997                 if (!ext2fs_has_feature_extents(fs->super))
2998                         printf("%s",
2999                                _("Extents are not enabled.  The file extent "
3000                                  "tree can be checksummed, whereas block maps "
3001                                  "cannot.  Not enabling extents reduces the "
3002                                  "coverage of metadata checksumming.  "
3003                                  "Pass -O extents to rectify.\n"));
3004                 if (!ext2fs_has_feature_64bit(fs->super))
3005                         printf("%s",
3006                                _("64-bit filesystem support is not enabled.  "
3007                                  "The larger fields afforded by this feature "
3008                                  "enable full-strength checksumming.  "
3009                                  "Pass -O 64bit to rectify.\n"));
3010         }
3011
3012         if (ext2fs_has_feature_csum_seed(fs->super) &&
3013             !ext2fs_has_feature_metadata_csum(fs->super)) {
3014                 printf("%s", _("The metadata_csum_seed feature "
3015                                "requires the metadata_csum feature.\n"));
3016                 exit(1);
3017         }
3018
3019         /* Calculate journal blocks */
3020         if (!journal_device && ((journal_size) ||
3021             ext2fs_has_feature_journal(&fs_param)))
3022                 journal_blocks = figure_journal_size(journal_size, fs);
3023
3024         sprintf(opt_string, "tdb_data_size=%d", fs->blocksize <= 4096 ?
3025                 32768 : fs->blocksize * 8);
3026         io_channel_set_options(fs->io, opt_string);
3027         if (offset) {
3028                 sprintf(opt_string, "offset=%llu", offset);
3029                 io_channel_set_options(fs->io, opt_string);
3030         }
3031
3032         /* Can't undo discard ... */
3033         if (!noaction && discard && dev_size && (io_ptr != undo_io_manager)) {
3034                 retval = mke2fs_discard_device(fs);
3035                 if (!retval && io_channel_discard_zeroes_data(fs->io)) {
3036                         if (verbose)
3037                                 printf("%s",
3038                                        _("Discard succeeded and will return "
3039                                          "0s - skipping inode table wipe\n"));
3040                         lazy_itable_init = 1;
3041                         itable_zeroed = 1;
3042                         zero_hugefile = 0;
3043                 }
3044         }
3045
3046         if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS)
3047                 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
3048
3049         if (ext2fs_has_feature_flex_bg(&fs_param) ||
3050             ext2fs_has_feature_huge_file(&fs_param) ||
3051             ext2fs_has_feature_gdt_csum(&fs_param) ||
3052             ext2fs_has_feature_dir_nlink(&fs_param) ||
3053             ext2fs_has_feature_metadata_csum(&fs_param) ||
3054             ext2fs_has_feature_extra_isize(&fs_param))
3055                 fs->super->s_kbytes_written = 1;
3056
3057         /*
3058          * Wipe out the old on-disk superblock
3059          */
3060         if (!noaction)
3061                 zap_sector(fs, 2, 6);
3062
3063         /*
3064          * Parse or generate a UUID for the filesystem
3065          */
3066         if (fs_uuid) {
3067                 if ((strcasecmp(fs_uuid, "null") == 0) ||
3068                     (strcasecmp(fs_uuid, "clear") == 0)) {
3069                         uuid_clear(fs->super->s_uuid);
3070                 } else if (strcasecmp(fs_uuid, "time") == 0) {
3071                         uuid_generate_time(fs->super->s_uuid);
3072                 } else if (strcasecmp(fs_uuid, "random") == 0) {
3073                         uuid_generate(fs->super->s_uuid);
3074                 } else if (uuid_parse(fs_uuid, fs->super->s_uuid) != 0) {
3075                         com_err(device_name, 0, "could not parse UUID: %s\n",
3076                                 fs_uuid);
3077                         exit(1);
3078                 }
3079         } else
3080                 uuid_generate(fs->super->s_uuid);
3081
3082         if (ext2fs_has_feature_csum_seed(fs->super))
3083                 fs->super->s_checksum_seed = ext2fs_crc32c_le(~0,
3084                                 fs->super->s_uuid, sizeof(fs->super->s_uuid));
3085
3086         ext2fs_init_csum_seed(fs);
3087
3088         /*
3089          * Initialize the directory index variables
3090          */
3091         hash_alg_str = get_string_from_profile(fs_types, "hash_alg",
3092                                                "half_md4");
3093         hash_alg = e2p_string2hash(hash_alg_str);
3094         free(hash_alg_str);
3095         fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg :
3096                 EXT2_HASH_HALF_MD4;
3097
3098         if (memcmp(fs_param.s_hash_seed, zero_buf,
3099                 sizeof(fs_param.s_hash_seed)) != 0) {
3100                 memcpy(fs->super->s_hash_seed, fs_param.s_hash_seed,
3101                         sizeof(fs->super->s_hash_seed));
3102         } else
3103                 uuid_generate((unsigned char *) fs->super->s_hash_seed);
3104
3105         /*
3106          * Periodic checks can be enabled/disabled via config file.
3107          * Note we override the kernel include file's idea of what the default
3108          * check interval (never) should be.  It's a good idea to check at
3109          * least *occasionally*, specially since servers will never rarely get
3110          * to reboot, since Linux is so robust these days.  :-)
3111          *
3112          * 180 days (six months) seems like a good value.
3113          */
3114 #ifdef EXT2_DFL_CHECKINTERVAL
3115 #undef EXT2_DFL_CHECKINTERVAL
3116 #endif
3117 #define EXT2_DFL_CHECKINTERVAL (86400L * 180L)
3118
3119         if (get_bool_from_profile(fs_types, "enable_periodic_fsck", 0)) {
3120                 fs->super->s_checkinterval = EXT2_DFL_CHECKINTERVAL;
3121                 fs->super->s_max_mnt_count = EXT2_DFL_MAX_MNT_COUNT;
3122                 /*
3123                  * Add "jitter" to the superblock's check interval so that we
3124                  * don't check all the filesystems at the same time.  We use a
3125                  * kludgy hack of using the UUID to derive a random jitter value
3126                  */
3127                 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++)
3128                         val += fs->super->s_uuid[i];
3129                 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
3130         } else
3131                 fs->super->s_max_mnt_count = -1;
3132
3133         /*
3134          * Override the creator OS, if applicable
3135          */
3136         if (creator_os && !set_os(fs->super, creator_os)) {
3137                 com_err (program_name, 0, _("unknown os - %s"), creator_os);
3138                 exit(1);
3139         }
3140
3141         /*
3142          * For the Hurd, we will turn off filetype since it doesn't
3143          * support it.
3144          */
3145         if (fs->super->s_creator_os == EXT2_OS_HURD)
3146                 ext2fs_clear_feature_filetype(fs->super);
3147
3148         /*
3149          * Set the volume label...
3150          */
3151         if (volume_label) {
3152                 memset(fs->super->s_volume_name, 0,
3153                        sizeof(fs->super->s_volume_name));
3154                 strncpy(fs->super->s_volume_name, volume_label,
3155                         sizeof(fs->super->s_volume_name));
3156         }
3157
3158         /*
3159          * Set the last mount directory
3160          */
3161         if (mount_dir) {
3162                 memset(fs->super->s_last_mounted, 0,
3163                        sizeof(fs->super->s_last_mounted));
3164                 strncpy(fs->super->s_last_mounted, mount_dir,
3165                         sizeof(fs->super->s_last_mounted));
3166         }
3167
3168         /* Set current default encryption algorithms for data and
3169          * filename encryption */
3170         if (ext2fs_has_feature_encrypt(fs->super)) {
3171                 fs->super->s_encrypt_algos[0] =
3172                         EXT4_ENCRYPTION_MODE_AES_256_XTS;
3173                 fs->super->s_encrypt_algos[1] =
3174                         EXT4_ENCRYPTION_MODE_AES_256_CTS;
3175         }
3176
3177         if (ext2fs_has_feature_metadata_csum(fs->super))
3178                 fs->super->s_checksum_type = EXT2_CRC32C_CHKSUM;
3179
3180         if (!quiet || noaction)
3181                 show_stats(fs);
3182
3183         if (noaction)
3184                 exit(0);
3185
3186         if (ext2fs_has_feature_journal_dev(fs->super)) {
3187                 create_journal_dev(fs);
3188                 printf("\n");
3189                 exit(ext2fs_close_free(&fs) ? 1 : 0);
3190         }
3191
3192         if (bad_blocks_filename)
3193                 read_bb_file(fs, &bb_list, bad_blocks_filename);
3194         if (cflag)
3195                 test_disk(fs, &bb_list);
3196         handle_bad_blocks(fs, bb_list);
3197
3198         fs->stride = fs_stride = fs->super->s_raid_stride;
3199         if (!quiet)
3200                 printf("%s", _("Allocating group tables: "));
3201         if (ext2fs_has_feature_flex_bg(fs->super) &&
3202             packed_meta_blocks)
3203                 retval = packed_allocate_tables(fs);
3204         else
3205                 retval = ext2fs_allocate_tables(fs);
3206         if (retval) {
3207                 com_err(program_name, retval, "%s",
3208                         _("while trying to allocate filesystem tables"));
3209                 exit(1);
3210         }
3211         if (!quiet)
3212                 printf("%s", _("done                            \n"));
3213
3214         retval = ext2fs_convert_subcluster_bitmap(fs, &fs->block_map);
3215         if (retval) {
3216                 com_err(program_name, retval, "%s",
3217                         _("\n\twhile converting subcluster bitmap"));
3218                 exit(1);
3219         }
3220
3221         if (super_only) {
3222                 check_plausibility(device_name, CHECK_FS_EXIST, NULL);
3223                 printf(_("%s may be further corrupted by superblock rewrite\n"),
3224                        device_name);
3225                 if (!force)
3226                         proceed_question(proceed_delay);
3227                 fs->super->s_state |= EXT2_ERROR_FS;
3228                 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
3229                 /*
3230                  * The command "mke2fs -S" is used to recover
3231                  * corrupted file systems, so do not mark any of the
3232                  * inodes as unused; we want e2fsck to consider all
3233                  * inodes as potentially containing recoverable data.
3234                  */
3235                 if (ext2fs_has_group_desc_csum(fs)) {
3236                         for (i = 0; i < fs->group_desc_count; i++)
3237                                 ext2fs_bg_itable_unused_set(fs, i, 0);
3238                 }
3239         } else {
3240                 /* rsv must be a power of two (64kB is MD RAID sb alignment) */
3241                 blk64_t rsv = 65536 / fs->blocksize;
3242                 blk64_t blocks = ext2fs_blocks_count(fs->super);
3243                 blk64_t start;
3244                 blk64_t ret_blk;
3245
3246 #ifdef ZAP_BOOTBLOCK
3247                 zap_sector(fs, 0, 2);
3248 #endif
3249
3250                 /*
3251                  * Wipe out any old MD RAID (or other) metadata at the end
3252                  * of the device.  This will also verify that the device is
3253                  * as large as we think.  Be careful with very small devices.
3254                  */
3255                 start = (blocks & ~(rsv - 1));
3256                 if (start > rsv)
3257                         start -= rsv;
3258                 if (start > 0)
3259                         retval = ext2fs_zero_blocks2(fs, start, blocks - start,
3260                                                     &ret_blk, NULL);
3261
3262                 if (retval) {
3263                         com_err(program_name, retval,
3264                                 _("while zeroing block %llu at end of filesystem"),
3265                                 ret_blk);
3266                 }
3267                 write_inode_tables(fs, lazy_itable_init, itable_zeroed);
3268                 create_root_dir(fs);
3269                 create_lost_and_found(fs);
3270                 reserve_inodes(fs);
3271                 create_bad_block_inode(fs, bb_list);
3272                 if (ext2fs_has_feature_resize_inode(fs->super)) {
3273                         retval = ext2fs_create_resize_inode(fs);
3274                         if (retval) {
3275                                 com_err("ext2fs_create_resize_inode", retval,
3276                                         "%s",
3277                                 _("while reserving blocks for online resize"));
3278                                 exit(1);
3279                         }
3280                 }
3281         }
3282
3283         if (journal_device) {
3284                 ext2_filsys     jfs;
3285
3286                 if (!check_plausibility(journal_device, CHECK_BLOCK_DEV,
3287                                         NULL) && !force)
3288                         proceed_question(proceed_delay);
3289                 check_mount(journal_device, force, _("journal"));
3290
3291                 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
3292                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
3293                                      fs->blocksize, unix_io_manager, &jfs);
3294                 if (retval) {
3295                         com_err(program_name, retval,
3296                                 _("while trying to open journal device %s\n"),
3297                                 journal_device);
3298                         exit(1);
3299                 }
3300                 if (!quiet) {
3301                         printf(_("Adding journal to device %s: "),
3302                                journal_device);
3303                         fflush(stdout);
3304                 }
3305                 retval = ext2fs_add_journal_device(fs, jfs);
3306                 if(retval) {
3307                         com_err (program_name, retval,
3308                                  _("\n\twhile trying to add journal to device %s"),
3309                                  journal_device);
3310                         exit(1);
3311                 }
3312                 if (!quiet)
3313                         printf("%s", _("done\n"));
3314                 ext2fs_close_free(&jfs);
3315                 free(journal_device);
3316         } else if ((journal_size) ||
3317                    ext2fs_has_feature_journal(&fs_param)) {
3318                 if (super_only) {
3319                         printf("%s", _("Skipping journal creation in super-only mode\n"));
3320                         fs->super->s_journal_inum = EXT2_JOURNAL_INO;
3321                         goto no_journal;
3322                 }
3323
3324                 if (!journal_blocks) {
3325                         ext2fs_clear_feature_journal(fs->super);
3326                         goto no_journal;
3327                 }
3328                 if (!quiet) {
3329                         printf(_("Creating journal (%u blocks): "),
3330                                journal_blocks);
3331                         fflush(stdout);
3332                 }
3333                 retval = ext2fs_add_journal_inode2(fs, journal_blocks,
3334                                                    journal_location,
3335                                                    journal_flags);
3336                 if (retval) {
3337                         com_err(program_name, retval, "%s",
3338                                 _("\n\twhile trying to create journal"));
3339                         exit(1);
3340                 }
3341                 if (!quiet)
3342                         printf("%s", _("done\n"));
3343         }
3344 no_journal:
3345         if (!super_only &&
3346             ext2fs_has_feature_mmp(fs->super)) {
3347                 retval = ext2fs_mmp_init(fs);
3348                 if (retval) {
3349                         fprintf(stderr, "%s",
3350                                 _("\nError while enabling multiple "
3351                                   "mount protection feature."));
3352                         exit(1);
3353                 }
3354                 if (!quiet)
3355                         printf(_("Multiple mount protection is enabled "
3356                                  "with update interval %d seconds.\n"),
3357                                fs->super->s_mmp_update_interval);
3358         }
3359
3360         if (ext2fs_has_feature_bigalloc(&fs_param))
3361                 fix_cluster_bg_counts(fs);
3362         if (ext2fs_has_feature_quota(&fs_param))
3363                 create_quota_inodes(fs);
3364
3365         retval = mk_hugefiles(fs, device_name);
3366         if (retval)
3367                 com_err(program_name, retval, "while creating huge files");
3368         /* Copy files from the specified directory */
3369         if (src_root_dir) {
3370                 if (!quiet)
3371                         printf("%s", _("Copying files into the device: "));
3372
3373                 retval = populate_fs(fs, EXT2_ROOT_INO, src_root_dir,
3374                                      EXT2_ROOT_INO);
3375                 if (retval) {
3376                         com_err(program_name, retval, "%s",
3377                                 _("while populating file system"));
3378                         exit(1);
3379                 } else if (!quiet)
3380                         printf("%s", _("done\n"));
3381         }
3382
3383         if (!quiet)
3384                 printf("%s", _("Writing superblocks and "
3385                        "filesystem accounting information: "));
3386         checkinterval = fs->super->s_checkinterval;
3387         max_mnt_count = fs->super->s_max_mnt_count;
3388         retval = ext2fs_close_free(&fs);
3389         if (retval) {
3390                 com_err(program_name, retval, "%s",
3391                         _("while writing out and closing file system"));
3392                 retval = 1;
3393         } else if (!quiet) {
3394                 printf("%s", _("done\n\n"));
3395                 if (!getenv("MKE2FS_SKIP_CHECK_MSG"))
3396                         print_check_message(max_mnt_count, checkinterval);
3397         }
3398
3399         remove_error_table(&et_ext2_error_table);
3400         remove_error_table(&et_prof_error_table);
3401         profile_release(profile);
3402         for (i=0; fs_types[i]; i++)
3403                 free(fs_types[i]);
3404         free(fs_types);
3405         return retval;
3406 }