misc/mke2fs.c

   1 /*
   2  * mke2fs.c - Make a ext2fs filesystem.
   3  *
   4  * Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
   5  *      2003, 2004, 2005 by Theodore Ts'o.
   6  *
   7  * %Begin-Header%
   8  * This file may be redistributed under the terms of the GNU Public
   9  * License.
  10  * %End-Header%
  11  */
  12
  13 /* Usage: mke2fs [options] device
  14  *
  15  * The device may be a block device or a image of one, but this isn't
  16  * enforced (but it's not much fun on a character device :-).
  17  */
  18
  19 #define _XOPEN_SOURCE 600
  20
  21 #include "config.h"
  22 #include <stdio.h>
  23 #include <string.h>
  24 #include <strings.h>
  25 #include <ctype.h>
  26 #include <time.h>
  27 #ifdef __linux__
  28 #include <sys/utsname.h>
  29 #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
  30 #endif
  31 #ifdef HAVE_GETOPT_H
  32 #include <getopt.h>
  33 #else
  34 extern char *optarg;
  35 extern int optind;
  36 #endif
  37 #ifdef HAVE_UNISTD_H
  38 #include <unistd.h>
  39 #endif
  40 #ifdef HAVE_STDLIB_H
  41 #include <stdlib.h>
  42 #endif
  43 #ifdef HAVE_ERRNO_H
  44 #include <errno.h>
  45 #endif
  46 #ifdef HAVE_SYS_IOCTL_H
  47 #include <sys/ioctl.h>
  48 #endif
  49 #include <libgen.h>
  50 #include <limits.h>
  51 #include <blkid/blkid.h>
  52
  53 #include "ext2fs/ext2_fs.h"
  54 #include "ext2fs/ext2fsP.h"
  55 #include "uuid/uuid.h"
  56 #include "util.h"
  57 #include "support/nls-enable.h"
  58 #include "support/plausible.h"
  59 #include "support/profile.h"
  60 #include "support/prof_err.h"
  61 #include "../version.h"
  62 #include "support/quotaio.h"
  63 #include "mke2fs.h"
  64 #include "create_inode.h"
  65
  66 #define STRIDE_LENGTH 8
  67
  68 #define MAX_32_NUM ((((unsigned long long) 1) << 32) - 1)
  69
  70 #ifndef __sparc__
  71 #define ZAP_BOOTBLOCK
  72 #endif
  73
  74 #define DISCARD_STEP_MB         (2048)
  75
  76 extern int isatty(int);
  77 extern FILE *fpopen(const char *cmd, const char *mode);
  78
  79 const char * program_name = "mke2fs";
  80 static const char * device_name /* = NULL */;
  81
  82 /* Command line options */
  83 static int      cflag;
  84 int     verbose;
  85 int     quiet;
  86 static int      super_only;
  87 static int      discard = 1;    /* attempt to discard device before fs creation */
  88 static int      direct_io;
  89 static int      force;
  90 static int      noaction;
  91 static int      num_backups = 2; /* number of backup bg's for sparse_super2 */
  92 static uid_t    root_uid;
  93 static gid_t    root_gid;
  94 int     journal_size;
  95 int     journal_flags;
  96 int     journal_fc_size;
  97 static int      lazy_itable_init;
  98 static int      packed_meta_blocks;
  99 int             no_copy_xattrs;
 100 static char     *bad_blocks_filename = NULL;
 101 static __u32    fs_stride;
 102 /* Initialize usr/grp quotas by default */
 103 static unsigned int quotatype_bits = (QUOTA_USR_BIT | QUOTA_GRP_BIT);
 104 static __u64    offset;
 105 static blk64_t journal_location = ~0LL;
 106 static int      proceed_delay = -1;
 107 static blk64_t  dev_size;
 108
 109 static struct ext2_super_block fs_param;
 110 static __u32 zero_buf[4];
 111 static char *fs_uuid = NULL;
 112 static char *creator_os;
 113 static char *volume_label;
 114 static char *mount_dir;
 115 char *journal_device;
 116 static int sync_kludge; /* Set using the MKE2FS_SYNC env. option */
 117 char **fs_types;
 118 const char *src_root_dir;  /* Copy files from the specified directory */
 119 static char *undo_file;
 120
 121 static int android_sparse_file; /* -E android_sparse */
 122
 123 static profile_t        profile;
 124
 125 static int sys_page_size = 4096;
 126
 127 static int errors_behavior = 0;
 128
 129 static void usage(void)
 130 {
 131         fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] "
 132         "[-C cluster-size]\n\t[-i bytes-per-inode] [-I inode-size] "
 133         "[-J journal-options]\n"
 134         "\t[-G flex-group-size] [-N number-of-inodes] "
 135         "[-d root-directory]\n"
 136         "\t[-m reserved-blocks-percentage] [-o creator-os]\n"
 137         "\t[-g blocks-per-group] [-L volume-label] "
 138         "[-M last-mounted-directory]\n\t[-O feature[,...]] "
 139         "[-r fs-revision] [-E extended-option[,...]]\n"
 140         "\t[-t fs-type] [-T usage-type ] [-U UUID] [-e errors_behavior]"
 141         "[-z undo_file]\n"
 142         "\t[-jnqvDFSV] device [blocks-count]\n"),
 143                 program_name);
 144         exit(1);
 145 }
 146
 147 static int int_log2(unsigned long long arg)
 148 {
 149         int     l = 0;
 150
 151         arg >>= 1;
 152         while (arg) {
 153                 l++;
 154                 arg >>= 1;
 155         }
 156         return l;
 157 }
 158
 159 int int_log10(unsigned long long arg)
 160 {
 161         int     l;
 162
 163         for (l=0; arg ; l++)
 164                 arg = arg / 10;
 165         return l;
 166 }
 167
 168 #ifdef __linux__
 169 static int parse_version_number(const char *s)
 170 {
 171         int     major, minor, rev;
 172         char    *endptr;
 173         const char *cp = s;
 174
 175         if (!s)
 176                 return 0;
 177         major = strtol(cp, &endptr, 10);
 178         if (cp == endptr || *endptr != '.')
 179                 return 0;
 180         cp = endptr + 1;
 181         minor = strtol(cp, &endptr, 10);
 182         if (cp == endptr || *endptr != '.')
 183                 return 0;
 184         cp = endptr + 1;
 185         rev = strtol(cp, &endptr, 10);
 186         if (cp == endptr)
 187                 return 0;
 188         return KERNEL_VERSION(major, minor, rev);
 189 }
 190
 191 static int is_before_linux_ver(unsigned int major, unsigned int minor,
 192                                unsigned int rev)
 193 {
 194         struct          utsname ut;
 195         static int      linux_version_code = -1;
 196
 197         if (uname(&ut)) {
 198                 perror("uname");
 199                 exit(1);
 200         }
 201         if (linux_version_code < 0)
 202                 linux_version_code = parse_version_number(ut.release);
 203         if (linux_version_code == 0)
 204                 return 0;
 205
 206         return linux_version_code < (int) KERNEL_VERSION(major, minor, rev);
 207 }
 208 #else
 209 static int is_before_linux_ver(unsigned int major, unsigned int minor,
 210                                unsigned int rev)
 211 {
 212         return 0;
 213 }
 214 #endif
 215
 216 /*
 217  * Helper function for read_bb_file and test_disk
 218  */
 219 static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk)
 220 {
 221         fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk);
 222         return;
 223 }
 224
 225 /*
 226  * Reads the bad blocks list from a file
 227  */
 228 static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list,
 229                          const char *bad_blocks_file)
 230 {
 231         FILE            *f;
 232         errcode_t       retval;
 233
 234         f = fopen(bad_blocks_file, "r");
 235         if (!f) {
 236                 com_err("read_bad_blocks_file", errno,
 237                         _("while trying to open %s"), bad_blocks_file);
 238                 exit(1);
 239         }
 240         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
 241         fclose (f);
 242         if (retval) {
 243                 com_err("ext2fs_read_bb_FILE", retval, "%s",
 244                         _("while reading in list of bad blocks from file"));
 245                 exit(1);
 246         }
 247 }
 248
 249 /*
 250  * Runs the badblocks program to test the disk
 251  */
 252 static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
 253 {
 254         FILE            *f;
 255         errcode_t       retval;
 256         char            buf[1024];
 257
 258         sprintf(buf, "badblocks -b %d -X %s%s%s %llu", fs->blocksize,
 259                 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "",
 260                 fs->device_name,
 261                 (unsigned long long) ext2fs_blocks_count(fs->super)-1);
 262         if (verbose)
 263                 printf(_("Running command: %s\n"), buf);
 264         f = popen(buf, "r");
 265         if (!f) {
 266                 com_err("popen", errno,
 267                         _("while trying to run '%s'"), buf);
 268                 exit(1);
 269         }
 270         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
 271         pclose(f);
 272         if (retval) {
 273                 com_err("ext2fs_read_bb_FILE", retval, "%s",
 274                         _("while processing list of bad blocks from program"));
 275                 exit(1);
 276         }
 277 }
 278
 279 static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
 280 {
 281         dgrp_t                  i;
 282         blk_t                   j;
 283         unsigned                must_be_good;
 284         blk_t                   blk;
 285         badblocks_iterate       bb_iter;
 286         errcode_t               retval;
 287         blk_t                   group_block;
 288         int                     group;
 289         int                     group_bad;
 290
 291         if (!bb_list)
 292                 return;
 293
 294         /*
 295          * The primary superblock and group descriptors *must* be
 296          * good; if not, abort.
 297          */
 298         must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
 299         for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
 300                 if (ext2fs_badblocks_list_test(bb_list, i)) {
 301                         fprintf(stderr, _("Block %d in primary "
 302                                 "superblock/group descriptor area bad.\n"), i);
 303                         fprintf(stderr, _("Blocks %u through %u must be good "
 304                                 "in order to build a filesystem.\n"),
 305                                 fs->super->s_first_data_block, must_be_good);
 306                         fputs(_("Aborting....\n"), stderr);
 307                         exit(1);
 308                 }
 309         }
 310
 311         /*
 312          * See if any of the bad blocks are showing up in the backup
 313          * superblocks and/or group descriptors.  If so, issue a
 314          * warning and adjust the block counts appropriately.
 315          */
 316         group_block = fs->super->s_first_data_block +
 317                 fs->super->s_blocks_per_group;
 318
 319         for (i = 1; i < fs->group_desc_count; i++) {
 320                 group_bad = 0;
 321                 for (j=0; j < fs->desc_blocks+1; j++) {
 322                         if (ext2fs_badblocks_list_test(bb_list,
 323                                                        group_block + j)) {
 324                                 if (!group_bad)
 325                                         fprintf(stderr,
 326 _("Warning: the backup superblock/group descriptors at block %u contain\n"
 327 "       bad blocks.\n\n"),
 328                                                 group_block);
 329                                 group_bad++;
 330                                 group = ext2fs_group_of_blk2(fs, group_block+j);
 331                                 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
 332                                 ext2fs_group_desc_csum_set(fs, group);
 333                                 ext2fs_free_blocks_count_add(fs->super, 1);
 334                         }
 335                 }
 336                 group_block += fs->super->s_blocks_per_group;
 337         }
 338
 339         /*
 340          * Mark all the bad blocks as used...
 341          */
 342         retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
 343         if (retval) {
 344                 com_err("ext2fs_badblocks_list_iterate_begin", retval, "%s",
 345                         _("while marking bad blocks as used"));
 346                 exit(1);
 347         }
 348         while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
 349                 ext2fs_mark_block_bitmap2(fs->block_map, blk);
 350         ext2fs_badblocks_list_iterate_end(bb_iter);
 351 }
 352
 353 static void write_reserved_inodes(ext2_filsys fs)
 354 {
 355         errcode_t       retval;
 356         ext2_ino_t      ino;
 357         struct ext2_inode *inode;
 358
 359         retval = ext2fs_get_memzero(EXT2_INODE_SIZE(fs->super), &inode);
 360         if (retval) {
 361                 com_err("inode_init", retval, _("while allocating memory"));
 362                 exit(1);
 363         }
 364
 365         for (ino = 1; ino < EXT2_FIRST_INO(fs->super); ino++) {
 366                 retval = ext2fs_write_inode_full(fs, ino, inode,
 367                                                  EXT2_INODE_SIZE(fs->super));
 368                 if (retval) {
 369                         com_err("ext2fs_write_inode_full", retval,
 370                                 _("while writing reserved inodes"));
 371                         exit(1);
 372                 }
 373         }
 374
 375         ext2fs_free_mem(&inode);
 376 }
 377
 378 static errcode_t packed_allocate_tables(ext2_filsys fs)
 379 {
 380         errcode_t       retval;
 381         dgrp_t          i;
 382         blk64_t         goal = 0;
 383
 384         for (i = 0; i < fs->group_desc_count; i++) {
 385                 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
 386                 if (retval)
 387                         return retval;
 388                 ext2fs_block_alloc_stats2(fs, goal, +1);
 389                 ext2fs_block_bitmap_loc_set(fs, i, goal);
 390         }
 391         for (i = 0; i < fs->group_desc_count; i++) {
 392                 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
 393                 if (retval)
 394                         return retval;
 395                 ext2fs_block_alloc_stats2(fs, goal, +1);
 396                 ext2fs_inode_bitmap_loc_set(fs, i, goal);
 397         }
 398         for (i = 0; i < fs->group_desc_count; i++) {
 399                 blk64_t end = ext2fs_blocks_count(fs->super) - 1;
 400                 retval = ext2fs_get_free_blocks2(fs, goal, end,
 401                                                  fs->inode_blocks_per_group,
 402                                                  fs->block_map, &goal);
 403                 if (retval)
 404                         return retval;
 405                 ext2fs_block_alloc_stats_range(fs, goal,
 406                                                fs->inode_blocks_per_group, +1);
 407                 ext2fs_inode_table_loc_set(fs, i, goal);
 408                 ext2fs_group_desc_csum_set(fs, i);
 409         }
 410         return 0;
 411 }
 412
 413 static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed)
 414 {
 415         errcode_t       retval;
 416         blk64_t         blk;
 417         dgrp_t          i;
 418         int             num;
 419         struct ext2fs_numeric_progress_struct progress;
 420
 421         ext2fs_numeric_progress_init(fs, &progress,
 422                                      _("Writing inode tables: "),
 423                                      fs->group_desc_count);
 424
 425         for (i = 0; i < fs->group_desc_count; i++) {
 426                 ext2fs_numeric_progress_update(fs, &progress, i);
 427
 428                 blk = ext2fs_inode_table_loc(fs, i);
 429                 num = fs->inode_blocks_per_group;
 430
 431                 if (lazy_flag)
 432                         num = ext2fs_div_ceil((fs->super->s_inodes_per_group -
 433                                                ext2fs_bg_itable_unused(fs, i)) *
 434                                               EXT2_INODE_SIZE(fs->super),
 435                                               EXT2_BLOCK_SIZE(fs->super));
 436                 if (!lazy_flag || itable_zeroed) {
 437                         /* The kernel doesn't need to zero the itable blocks */
 438                         ext2fs_bg_flags_set(fs, i, EXT2_BG_INODE_ZEROED);
 439                         ext2fs_group_desc_csum_set(fs, i);
 440                 }
 441                 if (!itable_zeroed) {
 442                         retval = ext2fs_zero_blocks2(fs, blk, num, &blk, &num);
 443                         if (retval) {
 444                                 fprintf(stderr, _("\nCould not write %d "
 445                                           "blocks in inode table starting at %llu: %s\n"),
 446                                         num, (unsigned long long) blk,
 447                                         error_message(retval));
 448                                 exit(1);
 449                         }
 450                 }
 451                 if (sync_kludge) {
 452                         if (sync_kludge == 1)
 453                                 io_channel_flush(fs->io);
 454                         else if ((i % sync_kludge) == 0)
 455                                 io_channel_flush(fs->io);
 456                 }
 457         }
 458         ext2fs_numeric_progress_close(fs, &progress,
 459                                       _("done                            \n"));
 460
 461         /* Reserved inodes must always have correct checksums */
 462         if (ext2fs_has_feature_metadata_csum(fs->super))
 463                 write_reserved_inodes(fs);
 464 }
 465
 466 static void create_root_dir(ext2_filsys fs)
 467 {
 468         errcode_t               retval;
 469         struct ext2_inode       inode;
 470
 471         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
 472         if (retval) {
 473                 com_err("ext2fs_mkdir", retval, "%s",
 474                         _("while creating root dir"));
 475                 exit(1);
 476         }
 477         if (root_uid != 0 || root_gid != 0) {
 478                 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
 479                 if (retval) {
 480                         com_err("ext2fs_read_inode", retval, "%s",
 481                                 _("while reading root inode"));
 482                         exit(1);
 483                 }
 484
 485                 inode.i_uid = root_uid;
 486                 ext2fs_set_i_uid_high(inode, root_uid >> 16);
 487                 inode.i_gid = root_gid;
 488                 ext2fs_set_i_gid_high(inode, root_gid >> 16);
 489
 490                 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
 491                 if (retval) {
 492                         com_err("ext2fs_write_inode", retval, "%s",
 493                                 _("while setting root inode ownership"));
 494                         exit(1);
 495                 }
 496         }
 497 }
 498
 499 static void create_lost_and_found(ext2_filsys fs)
 500 {
 501         unsigned int            lpf_size = 0;
 502         errcode_t               retval;
 503         ext2_ino_t              ino;
 504         const char              *name = "lost+found";
 505         int                     i;
 506
 507         fs->umask = 077;
 508         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
 509         if (retval) {
 510                 com_err("ext2fs_mkdir", retval, "%s",
 511                         _("while creating /lost+found"));
 512                 exit(1);
 513         }
 514
 515         retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
 516         if (retval) {
 517                 com_err("ext2_lookup", retval, "%s",
 518                         _("while looking up /lost+found"));
 519                 exit(1);
 520         }
 521
 522         for (i=1; i < EXT2_NDIR_BLOCKS; i++) {
 523                 /* Ensure that lost+found is at least 2 blocks, so we always
 524                  * test large empty blocks for big-block filesystems.  */
 525                 if ((lpf_size += fs->blocksize) >= 16*1024 &&
 526                     lpf_size >= 2 * fs->blocksize)
 527                         break;
 528                 retval = ext2fs_expand_dir(fs, ino);
 529                 if (retval) {
 530                         com_err("ext2fs_expand_dir", retval, "%s",
 531                                 _("while expanding /lost+found"));
 532                         exit(1);
 533                 }
 534         }
 535 }
 536
 537 static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
 538 {
 539         errcode_t       retval;
 540
 541         ext2fs_mark_inode_bitmap2(fs->inode_map, EXT2_BAD_INO);
 542         ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0);
 543         retval = ext2fs_update_bb_inode(fs, bb_list);
 544         if (retval) {
 545                 com_err("ext2fs_update_bb_inode", retval, "%s",
 546                         _("while setting bad block inode"));
 547                 exit(1);
 548         }
 549
 550 }
 551
 552 static void reserve_inodes(ext2_filsys fs)
 553 {
 554         ext2_ino_t      i;
 555
 556         for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++)
 557                 ext2fs_inode_alloc_stats2(fs, i, +1, 0);
 558         ext2fs_mark_ib_dirty(fs);
 559 }
 560
 561 #define BSD_DISKMAGIC   (0x82564557UL)  /* The disk magic number */
 562 #define BSD_MAGICDISK   (0x57455682UL)  /* The disk magic number reversed */
 563 #define BSD_LABEL_OFFSET        64
 564
 565 static void zap_sector(ext2_filsys fs, int sect, int nsect)
 566 {
 567         char *buf;
 568         int retval;
 569         unsigned int *magic;
 570
 571         buf = calloc(512, nsect);
 572         if (!buf) {
 573                 printf(_("Out of memory erasing sectors %d-%d\n"),
 574                        sect, sect + nsect - 1);
 575                 exit(1);
 576         }
 577
 578         if (sect == 0) {
 579                 /* Check for a BSD disklabel, and don't erase it if so */
 580                 retval = io_channel_read_blk64(fs->io, 0, -512, buf);
 581                 if (retval)
 582                         fprintf(stderr,
 583                                 _("Warning: could not read block 0: %s\n"),
 584                                 error_message(retval));
 585                 else {
 586                         magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);
 587                         if ((*magic == BSD_DISKMAGIC) ||
 588                             (*magic == BSD_MAGICDISK)) {
 589                                 free(buf);
 590                                 return;
 591                         }
 592                 }
 593         }
 594
 595         memset(buf, 0, 512*nsect);
 596         io_channel_set_blksize(fs->io, 512);
 597         retval = io_channel_write_blk64(fs->io, sect, -512*nsect, buf);
 598         io_channel_set_blksize(fs->io, fs->blocksize);
 599         free(buf);
 600         if (retval)
 601                 fprintf(stderr, _("Warning: could not erase sector %d: %s\n"),
 602                         sect, error_message(retval));
 603 }
 604
 605 static void create_journal_dev(ext2_filsys fs)
 606 {
 607         struct ext2fs_numeric_progress_struct progress;
 608         errcode_t               retval;
 609         char                    *buf;
 610         blk64_t                 blk, err_blk;
 611         int                     c, count, err_count;
 612         struct ext2fs_journal_params    jparams;
 613
 614         retval = ext2fs_get_journal_params(&jparams, fs);
 615         if (retval) {
 616                 com_err("create_journal_dev", retval, "%s",
 617                         _("while splitting the journal size"));
 618                 exit(1);
 619         }
 620
 621         retval = ext2fs_create_journal_superblock2(fs, &jparams, 0, &buf);
 622         if (retval) {
 623                 com_err("create_journal_dev", retval, "%s",
 624                         _("while initializing journal superblock"));
 625                 exit(1);
 626         }
 627
 628         if (journal_flags & EXT2_MKJOURNAL_LAZYINIT)
 629                 goto write_superblock;
 630
 631         ext2fs_numeric_progress_init(fs, &progress,
 632                                      _("Zeroing journal device: "),
 633                                      ext2fs_blocks_count(fs->super));
 634         blk = 0;
 635         count = ext2fs_blocks_count(fs->super);
 636         while (count > 0) {
 637                 if (count > 1024)
 638                         c = 1024;
 639                 else
 640                         c = count;
 641                 retval = ext2fs_zero_blocks2(fs, blk, c, &err_blk, &err_count);
 642                 if (retval) {
 643                         com_err("create_journal_dev", retval,
 644                                 _("while zeroing journal device "
 645                                   "(block %llu, count %d)"),
 646                                 (unsigned long long) err_blk, err_count);
 647                         exit(1);
 648                 }
 649                 blk += c;
 650                 count -= c;
 651                 ext2fs_numeric_progress_update(fs, &progress, blk);
 652         }
 653
 654         ext2fs_numeric_progress_close(fs, &progress, NULL);
 655 write_superblock:
 656         retval = io_channel_write_blk64(fs->io,
 657                                         fs->super->s_first_data_block+1,
 658                                         1, buf);
 659         (void) ext2fs_free_mem(&buf);
 660         if (retval) {
 661                 com_err("create_journal_dev", retval, "%s",
 662                         _("while writing journal superblock"));
 663                 exit(1);
 664         }
 665 }
 666
 667 static void show_stats(ext2_filsys fs)
 668 {
 669         struct ext2_super_block *s = fs->super;
 670         char                    *os;
 671         blk64_t                 group_block;
 672         dgrp_t                  i;
 673         int                     need, col_left;
 674
 675         if (!verbose) {
 676                 printf(_("Creating filesystem with %llu %dk blocks and "
 677                          "%u inodes\n"),
 678                        (unsigned long long) ext2fs_blocks_count(s),
 679                        fs->blocksize >> 10, s->s_inodes_count);
 680                 goto skip_details;
 681         }
 682
 683         if (ext2fs_blocks_count(&fs_param) != ext2fs_blocks_count(s))
 684                 fprintf(stderr, _("warning: %llu blocks unused.\n\n"),
 685                         (unsigned long long) (ext2fs_blocks_count(&fs_param) -
 686                                               ext2fs_blocks_count(s)));
 687
 688         printf(_("Filesystem label=%.*s\n"), EXT2_LEN_STR(s->s_volume_name));
 689
 690         os = e2p_os2string(fs->super->s_creator_os);
 691         if (os)
 692                 printf(_("OS type: %s\n"), os);
 693         free(os);
 694         printf(_("Block size=%u (log=%u)\n"), fs->blocksize,
 695                 s->s_log_block_size);
 696         if (ext2fs_has_feature_bigalloc(fs->super))
 697                 printf(_("Cluster size=%u (log=%u)\n"),
 698                        fs->blocksize << fs->cluster_ratio_bits,
 699                        s->s_log_cluster_size);
 700         else
 701                 printf(_("Fragment size=%u (log=%u)\n"), EXT2_CLUSTER_SIZE(s),
 702                        s->s_log_cluster_size);
 703         printf(_("Stride=%u blocks, Stripe width=%u blocks\n"),
 704                s->s_raid_stride, s->s_raid_stripe_width);
 705         printf(_("%u inodes, %llu blocks\n"), s->s_inodes_count,
 706                (unsigned long long) ext2fs_blocks_count(s));
 707         printf(_("%llu blocks (%2.2f%%) reserved for the super user\n"),
 708                (unsigned long long) ext2fs_r_blocks_count(s),
 709                100.0 *  ext2fs_r_blocks_count(s) / ext2fs_blocks_count(s));
 710         printf(_("First data block=%u\n"), s->s_first_data_block);
 711         if (root_uid != 0 || root_gid != 0)
 712                 printf(_("Root directory owner=%u:%u\n"), root_uid, root_gid);
 713         if (s->s_reserved_gdt_blocks)
 714                 printf(_("Maximum filesystem blocks=%lu\n"),
 715                        (s->s_reserved_gdt_blocks + fs->desc_blocks) *
 716                        EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group);
 717         if (fs->group_desc_count > 1)
 718                 printf(_("%u block groups\n"), fs->group_desc_count);
 719         else
 720                 printf(_("%u block group\n"), fs->group_desc_count);
 721         if (ext2fs_has_feature_bigalloc(fs->super))
 722                 printf(_("%u blocks per group, %u clusters per group\n"),
 723                        s->s_blocks_per_group, s->s_clusters_per_group);
 724         else
 725                 printf(_("%u blocks per group, %u fragments per group\n"),
 726                        s->s_blocks_per_group, s->s_clusters_per_group);
 727         printf(_("%u inodes per group\n"), s->s_inodes_per_group);
 728
 729 skip_details:
 730         if (fs->group_desc_count == 1) {
 731                 printf("\n");
 732                 return;
 733         }
 734
 735         if (!e2p_is_null_uuid(s->s_uuid))
 736                 printf(_("Filesystem UUID: %s\n"), e2p_uuid2str(s->s_uuid));
 737         printf("%s", _("Superblock backups stored on blocks: "));
 738         group_block = s->s_first_data_block;
 739         col_left = 0;
 740         for (i = 1; i < fs->group_desc_count; i++) {
 741                 group_block += s->s_blocks_per_group;
 742                 if (!ext2fs_bg_has_super(fs, i))
 743                         continue;
 744                 if (i != 1)
 745                         printf(", ");
 746                 need = int_log10(group_block) + 2;
 747                 if (need > col_left) {
 748                         printf("\n\t");
 749                         col_left = 72;
 750                 }
 751                 col_left -= need;
 752                 printf("%llu", (unsigned long long) group_block);
 753         }
 754         printf("\n\n");
 755 }
 756
 757 /*
 758  * Returns true if making a file system for the Hurd, else 0
 759  */
 760 static int for_hurd(const char *os)
 761 {
 762         if (!os) {
 763 #ifdef __GNU__
 764                 return 1;
 765 #else
 766                 return 0;
 767 #endif
 768         }
 769         if (isdigit(*os))
 770                 return (atoi(os) == EXT2_OS_HURD);
 771         return (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0);
 772 }
 773
 774 /*
 775  * Set the S_CREATOR_OS field.  Return true if OS is known,
 776  * otherwise, 0.
 777  */
 778 static int set_os(struct ext2_super_block *sb, char *os)
 779 {
 780         if (isdigit (*os))
 781                 sb->s_creator_os = atoi (os);
 782         else if (strcasecmp(os, "linux") == 0)
 783                 sb->s_creator_os = EXT2_OS_LINUX;
 784         else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0)
 785                 sb->s_creator_os = EXT2_OS_HURD;
 786         else if (strcasecmp(os, "freebsd") == 0)
 787                 sb->s_creator_os = EXT2_OS_FREEBSD;
 788         else if (strcasecmp(os, "lites") == 0)
 789                 sb->s_creator_os = EXT2_OS_LITES;
 790         else
 791                 return 0;
 792         return 1;
 793 }
 794
 795 #define PATH_SET "PATH=/sbin"
 796
 797 static void parse_extended_opts(struct ext2_super_block *param,
 798                                 const char *opts)
 799 {
 800         char    *buf, *token, *next, *p, *arg, *badopt = 0;
 801         int     len;
 802         int     r_usage = 0;
 803         int     ret;
 804         int     encoding = -1;
 805         char    *encoding_flags = NULL;
 806
 807         len = strlen(opts);
 808         buf = malloc(len+1);
 809         if (!buf) {
 810                 fprintf(stderr, "%s",
 811                         _("Couldn't allocate memory to parse options!\n"));
 812                 exit(1);
 813         }
 814         strcpy(buf, opts);
 815         for (token = buf; token && *token; token = next) {
 816                 p = strchr(token, ',');
 817                 next = 0;
 818                 if (p) {
 819                         *p = 0;
 820                         next = p+1;
 821                 }
 822                 arg = strchr(token, '=');
 823                 if (arg) {
 824                         *arg = 0;
 825                         arg++;
 826                 }
 827                 if (strcmp(token, "desc-size") == 0 ||
 828                     strcmp(token, "desc_size") == 0) {
 829                         int desc_size;
 830
 831                         if (!ext2fs_has_feature_64bit(&fs_param)) {
 832                                 fprintf(stderr,
 833                                         _("%s requires '-O 64bit'\n"), token);
 834                                 r_usage++;
 835                                 continue;
 836                         }
 837                         if (param->s_reserved_gdt_blocks != 0) {
 838                                 fprintf(stderr,
 839                                         _("'%s' must be before 'resize=%u'\n"),
 840                                         token, param->s_reserved_gdt_blocks);
 841                                 r_usage++;
 842                                 continue;
 843                         }
 844                         if (!arg) {
 845                                 r_usage++;
 846                                 badopt = token;
 847                                 continue;
 848                         }
 849                         desc_size = strtoul(arg, &p, 0);
 850                         if (*p || (desc_size & (desc_size - 1))) {
 851                                 fprintf(stderr,
 852                                         _("Invalid desc_size: '%s'\n"), arg);
 853                                 r_usage++;
 854                                 continue;
 855                         }
 856                         param->s_desc_size = desc_size;
 857                 } else if (strcmp(token, "hash_seed") == 0) {
 858                         if (!arg) {
 859                                 r_usage++;
 860                                 badopt = token;
 861                                 continue;
 862                         }
 863                         if (uuid_parse(arg,
 864                                 (unsigned char *)param->s_hash_seed) != 0) {
 865                                 fprintf(stderr,
 866                                         _("Invalid hash seed: %s\n"), arg);
 867                                 r_usage++;
 868                                 continue;
 869                         }
 870                 } else if (strcmp(token, "offset") == 0) {
 871                         if (!arg) {
 872                                 r_usage++;
 873                                 badopt = token;
 874                                 continue;
 875                         }
 876                         offset = strtoull(arg, &p, 0);
 877                         if (*p) {
 878                                 fprintf(stderr, _("Invalid offset: %s\n"),
 879                                         arg);
 880                                 r_usage++;
 881                                 continue;
 882                         }
 883                 } else if (strcmp(token, "mmp_update_interval") == 0) {
 884                         if (!arg) {
 885                                 r_usage++;
 886                                 badopt = token;
 887                                 continue;
 888                         }
 889                         param->s_mmp_update_interval = strtoul(arg, &p, 0);
 890                         if (*p) {
 891                                 fprintf(stderr,
 892                                         _("Invalid mmp_update_interval: %s\n"),
 893                                         arg);
 894                                 r_usage++;
 895                                 continue;
 896                         }
 897                 } else if (strcmp(token, "no_copy_xattrs") == 0) {
 898                         no_copy_xattrs = 1;
 899                         continue;
 900                 } else if (strcmp(token, "num_backup_sb") == 0) {
 901                         if (!arg) {
 902                                 r_usage++;
 903                                 badopt = token;
 904                                 continue;
 905                         }
 906                         num_backups = strtoul(arg, &p, 0);
 907                         if (*p || num_backups > 2) {
 908                                 fprintf(stderr,
 909                                         _("Invalid # of backup "
 910                                           "superblocks: %s\n"),
 911                                         arg);
 912                                 r_usage++;
 913                                 continue;
 914                         }
 915                 } else if (strcmp(token, "packed_meta_blocks") == 0) {
 916                         if (arg)
 917                                 packed_meta_blocks = strtoul(arg, &p, 0);
 918                         else
 919                                 packed_meta_blocks = 1;
 920                         if (packed_meta_blocks)
 921                                 journal_location = 0;
 922                 } else if (strcmp(token, "stride") == 0) {
 923                         if (!arg) {
 924                                 r_usage++;
 925                                 badopt = token;
 926                                 continue;
 927                         }
 928                         param->s_raid_stride = strtoul(arg, &p, 0);
 929                         if (*p) {
 930                                 fprintf(stderr,
 931                                         _("Invalid stride parameter: %s\n"),
 932                                         arg);
 933                                 r_usage++;
 934                                 continue;
 935                         }
 936                 } else if (strcmp(token, "stripe-width") == 0 ||
 937                            strcmp(token, "stripe_width") == 0) {
 938                         if (!arg) {
 939                                 r_usage++;
 940                                 badopt = token;
 941                                 continue;
 942                         }
 943                         param->s_raid_stripe_width = strtoul(arg, &p, 0);
 944                         if (*p) {
 945                                 fprintf(stderr,
 946                                         _("Invalid stripe-width parameter: %s\n"),
 947                                         arg);
 948                                 r_usage++;
 949                                 continue;
 950                         }
 951                 } else if (!strcmp(token, "resize")) {
 952                         blk64_t resize;
 953                         unsigned long bpg, rsv_groups;
 954                         unsigned long group_desc_count, desc_blocks;
 955                         unsigned int gdpb, blocksize;
 956                         int rsv_gdb;
 957
 958                         if (!arg) {
 959                                 r_usage++;
 960                                 badopt = token;
 961                                 continue;
 962                         }
 963
 964                         resize = parse_num_blocks2(arg,
 965                                                    param->s_log_block_size);
 966
 967                         if (resize == 0) {
 968                                 fprintf(stderr,
 969                                         _("Invalid resize parameter: %s\n"),
 970                                         arg);
 971                                 r_usage++;
 972                                 continue;
 973                         }
 974                         if (resize <= ext2fs_blocks_count(param)) {
 975                                 fprintf(stderr, "%s",
 976                                         _("The resize maximum must be greater "
 977                                           "than the filesystem size.\n"));
 978                                 r_usage++;
 979                                 continue;
 980                         }
 981
 982                         blocksize = EXT2_BLOCK_SIZE(param);
 983                         bpg = param->s_blocks_per_group;
 984                         if (!bpg)
 985                                 bpg = blocksize * 8;
 986                         gdpb = EXT2_DESC_PER_BLOCK(param);
 987                         group_desc_count = (__u32) ext2fs_div64_ceil(
 988                                 ext2fs_blocks_count(param), bpg);
 989                         desc_blocks = (group_desc_count +
 990                                        gdpb - 1) / gdpb;
 991                         rsv_groups = ext2fs_div64_ceil(resize, bpg);
 992                         rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) -
 993                                 desc_blocks;
 994                         if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param))
 995                                 rsv_gdb = EXT2_ADDR_PER_BLOCK(param);
 996
 997                         if (rsv_gdb > 0) {
 998                                 if (param->s_rev_level == EXT2_GOOD_OLD_REV) {
 999                                         fprintf(stderr, "%s",
1000         _("On-line resizing not supported with revision 0 filesystems\n"));
1001                                         free(buf);
1002                                         exit(1);
1003                                 }
1004                                 ext2fs_set_feature_resize_inode(param);
1005
1006                                 param->s_reserved_gdt_blocks = rsv_gdb;
1007                         }
1008                 } else if (!strcmp(token, "test_fs")) {
1009                         param->s_flags |= EXT2_FLAGS_TEST_FILESYS;
1010                 } else if (!strcmp(token, "lazy_itable_init")) {
1011                         if (arg)
1012                                 lazy_itable_init = strtoul(arg, &p, 0);
1013                         else
1014                                 lazy_itable_init = 1;
1015                 } else if (!strcmp(token, "lazy_journal_init")) {
1016                         if (arg)
1017                                 journal_flags |= strtoul(arg, &p, 0) ?
1018                                                 EXT2_MKJOURNAL_LAZYINIT : 0;
1019                         else
1020                                 journal_flags |= EXT2_MKJOURNAL_LAZYINIT;
1021                 } else if (!strcmp(token, "root_owner")) {
1022                         if (arg) {
1023                                 root_uid = strtoul(arg, &p, 0);
1024                                 if (*p != ':') {
1025                                         fprintf(stderr,
1026                                                 _("Invalid root_owner: '%s'\n"),
1027                                                 arg);
1028                                         r_usage++;
1029                                         continue;
1030                                 }
1031                                 p++;
1032                                 root_gid = strtoul(p, &p, 0);
1033                                 if (*p) {
1034                                         fprintf(stderr,
1035                                                 _("Invalid root_owner: '%s'\n"),
1036                                                 arg);
1037                                         r_usage++;
1038                                         continue;
1039                                 }
1040                         } else {
1041                                 root_uid = getuid();
1042                                 root_gid = getgid();
1043                         }
1044                 } else if (!strcmp(token, "discard")) {
1045                         discard = 1;
1046                 } else if (!strcmp(token, "nodiscard")) {
1047                         discard = 0;
1048                 } else if (!strcmp(token, "quotatype")) {
1049                         char *errtok = NULL;
1050
1051                         if (!arg) {
1052                                 r_usage++;
1053                                 badopt = token;
1054                                 continue;
1055                         }
1056                         quotatype_bits = 0;
1057                         ret = parse_quota_types(arg, &quotatype_bits, &errtok);
1058                         if (ret) {
1059                                 if (errtok) {
1060                                         fprintf(stderr,
1061                                 "Failed to parse quota type at %s", errtok);
1062                                         free(errtok);
1063                                 } else
1064                                         com_err(program_name, ret,
1065                                                 "while parsing quota type");
1066                                 r_usage++;
1067                                 badopt = token;
1068                                 continue;
1069                         }
1070                 } else if (!strcmp(token, "android_sparse")) {
1071                         android_sparse_file = 1;
1072                 } else if (!strcmp(token, "encoding")) {
1073                         if (!arg) {
1074                                 r_usage++;
1075                                 continue;
1076                         }
1077
1078                         encoding = e2p_str2encoding(arg);
1079                         if (encoding < 0) {
1080                                 fprintf(stderr, _("Invalid encoding: %s"), arg);
1081                                 r_usage++;
1082                                 continue;
1083                         }
1084                         param->s_encoding = encoding;
1085                         ext2fs_set_feature_casefold(param);
1086                 } else if (!strcmp(token, "encoding_flags")) {
1087                         if (!arg) {
1088                                 r_usage++;
1089                                 continue;
1090                         }
1091                         encoding_flags = arg;
1092                 } else {
1093                         r_usage++;
1094                         badopt = token;
1095                 }
1096         }
1097         if (r_usage) {
1098                 fprintf(stderr, _("\nBad option(s) specified: %s\n\n"
1099                         "Extended options are separated by commas, "
1100                         "and may take an argument which\n"
1101                         "\tis set off by an equals ('=') sign.\n\n"
1102                         "Valid extended options are:\n"
1103                         "\tmmp_update_interval=<interval>\n"
1104                         "\tnum_backup_sb=<0|1|2>\n"
1105                         "\tstride=<RAID per-disk data chunk in blocks>\n"
1106                         "\tstripe-width=<RAID stride * data disks in blocks>\n"
1107                         "\toffset=<offset to create the file system>\n"
1108                         "\tresize=<resize maximum size in blocks>\n"
1109                         "\tpacked_meta_blocks=<0 to disable, 1 to enable>\n"
1110                         "\tlazy_itable_init=<0 to disable, 1 to enable>\n"
1111                         "\tlazy_journal_init=<0 to disable, 1 to enable>\n"
1112                         "\troot_owner=<uid of root dir>:<gid of root dir>\n"
1113                         "\ttest_fs\n"
1114                         "\tdiscard\n"
1115                         "\tnodiscard\n"
1116                         "\tencoding=<encoding>\n"
1117                         "\tencoding_flags=<flags>\n"
1118                         "\tquotatype=<quota type(s) to be enabled>\n\n"),
1119                         badopt ? badopt : "");
1120                 free(buf);
1121                 exit(1);
1122         }
1123         if (param->s_raid_stride &&
1124             (param->s_raid_stripe_width % param->s_raid_stride) != 0)
1125                 fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even "
1126                                   "multiple of stride %u.\n\n"),
1127                         param->s_raid_stripe_width, param->s_raid_stride);
1128
1129         if (ext2fs_has_feature_casefold(param)) {
1130                 param->s_encoding_flags =
1131                         e2p_get_encoding_flags(param->s_encoding);
1132
1133                 if (encoding_flags &&
1134                     e2p_str2encoding_flags(param->s_encoding, encoding_flags,
1135                                            &param->s_encoding_flags)) {
1136                         fprintf(stderr, _("error: Invalid encoding flag: %s\n"),
1137                                 encoding_flags);
1138                         free(buf);
1139                         exit(1);
1140                 }
1141         } else if (encoding_flags) {
1142                 fprintf(stderr, _("error: An encoding must be explicitly "
1143                                   "specified when passing encoding-flags\n"));
1144                 free(buf);
1145                 exit(1);
1146         }
1147
1148         free(buf);
1149 }
1150
1151 static __u32 ok_features[3] = {
1152         /* Compat */
1153         EXT3_FEATURE_COMPAT_HAS_JOURNAL |
1154                 EXT2_FEATURE_COMPAT_RESIZE_INODE |
1155                 EXT2_FEATURE_COMPAT_DIR_INDEX |
1156                 EXT2_FEATURE_COMPAT_EXT_ATTR |
1157                 EXT4_FEATURE_COMPAT_SPARSE_SUPER2 |
1158                 EXT4_FEATURE_COMPAT_FAST_COMMIT |
1159                 EXT4_FEATURE_COMPAT_STABLE_INODES,
1160         /* Incompat */
1161         EXT2_FEATURE_INCOMPAT_FILETYPE|
1162                 EXT3_FEATURE_INCOMPAT_EXTENTS|
1163                 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
1164                 EXT2_FEATURE_INCOMPAT_META_BG|
1165                 EXT4_FEATURE_INCOMPAT_FLEX_BG|
1166                 EXT4_FEATURE_INCOMPAT_EA_INODE|
1167                 EXT4_FEATURE_INCOMPAT_MMP |
1168                 EXT4_FEATURE_INCOMPAT_64BIT|
1169                 EXT4_FEATURE_INCOMPAT_INLINE_DATA|
1170                 EXT4_FEATURE_INCOMPAT_ENCRYPT |
1171                 EXT4_FEATURE_INCOMPAT_CASEFOLD |
1172                 EXT4_FEATURE_INCOMPAT_CSUM_SEED |
1173                 EXT4_FEATURE_INCOMPAT_LARGEDIR,
1174         /* R/O compat */
1175         EXT2_FEATURE_RO_COMPAT_LARGE_FILE|
1176                 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
1177                 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
1178                 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
1179                 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|
1180                 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
1181                 EXT4_FEATURE_RO_COMPAT_BIGALLOC|
1182                 EXT4_FEATURE_RO_COMPAT_QUOTA|
1183                 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|
1184                 EXT4_FEATURE_RO_COMPAT_PROJECT|
1185                 EXT4_FEATURE_RO_COMPAT_VERITY
1186 };
1187
1188
1189 static void syntax_err_report(const char *filename, long err, int line_num)
1190 {
1191         fprintf(stderr,
1192                 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"),
1193                 filename, line_num, error_message(err));
1194         exit(1);
1195 }
1196
1197 static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 };
1198
1199 static void edit_feature(const char *str, __u32 *compat_array)
1200 {
1201         if (!str)
1202                 return;
1203
1204         if (e2p_edit_feature(str, compat_array, ok_features)) {
1205                 fprintf(stderr, _("Invalid filesystem option set: %s\n"),
1206                         str);
1207                 exit(1);
1208         }
1209 }
1210
1211 static void edit_mntopts(const char *str, __u32 *mntopts)
1212 {
1213         if (!str)
1214                 return;
1215
1216         if (e2p_edit_mntopts(str, mntopts, ~0)) {
1217                 fprintf(stderr, _("Invalid mount option set: %s\n"),
1218                         str);
1219                 exit(1);
1220         }
1221 }
1222
1223 struct str_list {
1224         char **list;
1225         int num;
1226         int max;
1227 };
1228
1229 static errcode_t init_list(struct str_list *sl)
1230 {
1231         sl->num = 0;
1232         sl->max = 1;
1233         sl->list = malloc((sl->max+1) * sizeof(char *));
1234         if (!sl->list)
1235                 return ENOMEM;
1236         sl->list[0] = 0;
1237         return 0;
1238 }
1239
1240 static errcode_t push_string(struct str_list *sl, const char *str)
1241 {
1242         char **new_list;
1243
1244         if (sl->num >= sl->max) {
1245                 sl->max += 2;
1246                 new_list = realloc(sl->list, (sl->max+1) * sizeof(char *));
1247                 if (!new_list)
1248                         return ENOMEM;
1249                 sl->list = new_list;
1250         }
1251         sl->list[sl->num] = malloc(strlen(str)+1);
1252         if (sl->list[sl->num] == 0)
1253                 return ENOMEM;
1254         strcpy(sl->list[sl->num], str);
1255         sl->num++;
1256         sl->list[sl->num] = 0;
1257         return 0;
1258 }
1259
1260 static void print_str_list(char **list)
1261 {
1262         char **cpp;
1263
1264         for (cpp = list; *cpp; cpp++) {
1265                 printf("'%s'", *cpp);
1266                 if (cpp[1])
1267                         fputs(", ", stdout);
1268         }
1269         fputc('\n', stdout);
1270 }
1271
1272 /*
1273  * Return TRUE if the profile has the given subsection
1274  */
1275 static int profile_has_subsection(profile_t prof, const char *section,
1276                                   const char *subsection)
1277 {
1278         void                    *state;
1279         const char              *names[4];
1280         char                    *name;
1281         int                     ret = 0;
1282
1283         names[0] = section;
1284         names[1] = subsection;
1285         names[2] = 0;
1286
1287         if (profile_iterator_create(prof, names,
1288                                     PROFILE_ITER_LIST_SECTION |
1289                                     PROFILE_ITER_RELATIONS_ONLY, &state))
1290                 return 0;
1291
1292         if ((profile_iterator(&state, &name, 0) == 0) && name) {
1293                 free(name);
1294                 ret = 1;
1295         }
1296
1297         profile_iterator_free(&state);
1298         return ret;
1299 }
1300
1301 static char **parse_fs_type(const char *fs_type,
1302                             const char *usage_types,
1303                             struct ext2_super_block *sb,
1304                             blk64_t fs_blocks_count,
1305                             char *progname)
1306 {
1307         const char      *ext_type = 0;
1308         char            *parse_str;
1309         char            *profile_type = 0;
1310         char            *cp, *t;
1311         const char      *size_type;
1312         struct str_list list;
1313         unsigned long long meg;
1314         int             is_hurd = for_hurd(creator_os);
1315
1316         if (init_list(&list))
1317                 return 0;
1318
1319         if (fs_type)
1320                 ext_type = fs_type;
1321         else if (is_hurd)
1322                 ext_type = "ext2";
1323         else if (!strcmp(program_name, "mke3fs"))
1324                 ext_type = "ext3";
1325         else if (!strcmp(program_name, "mke4fs"))
1326                 ext_type = "ext4";
1327         else if (progname) {
1328                 ext_type = strrchr(progname, '/');
1329                 if (ext_type)
1330                         ext_type++;
1331                 else
1332                         ext_type = progname;
1333
1334                 if (!strncmp(ext_type, "mkfs.", 5)) {
1335                         ext_type += 5;
1336                         if (ext_type[0] == 0)
1337                                 ext_type = 0;
1338                 } else
1339                         ext_type = 0;
1340         }
1341
1342         if (!ext_type) {
1343                 profile_get_string(profile, "defaults", "fs_type", 0,
1344                                    "ext2", &profile_type);
1345                 ext_type = profile_type;
1346                 if (!strcmp(ext_type, "ext2") && (journal_size != 0))
1347                         ext_type = "ext3";
1348         }
1349
1350
1351         if (!profile_has_subsection(profile, "fs_types", ext_type) &&
1352             strcmp(ext_type, "ext2")) {
1353                 printf(_("\nYour mke2fs.conf file does not define the "
1354                          "%s filesystem type.\n"), ext_type);
1355                 if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") ||
1356                     !strcmp(ext_type, "ext4dev")) {
1357                         printf("%s", _("You probably need to install an "
1358                                        "updated mke2fs.conf file.\n\n"));
1359                 }
1360                 if (!force) {
1361                         printf("%s", _("Aborting...\n"));
1362                         exit(1);
1363                 }
1364         }
1365
1366         meg = (1024 * 1024) / EXT2_BLOCK_SIZE(sb);
1367         if (fs_blocks_count < 3 * meg)
1368                 size_type = "floppy";
1369         else if (fs_blocks_count < 512 * meg)
1370                 size_type = "small";
1371         else if (fs_blocks_count < 4 * 1024 * 1024 * meg)
1372                 size_type = "default";
1373         else if (fs_blocks_count < 16 * 1024 * 1024 * meg)
1374                 size_type = "big";
1375         else
1376                 size_type = "huge";
1377
1378         if (!usage_types)
1379                 usage_types = size_type;
1380
1381         parse_str = malloc(strlen(usage_types)+1);
1382         if (!parse_str) {
1383                 free(profile_type);
1384                 free(list.list);
1385                 return 0;
1386         }
1387         strcpy(parse_str, usage_types);
1388
1389         if (ext_type)
1390                 push_string(&list, ext_type);
1391         cp = parse_str;
1392         while (1) {
1393                 t = strchr(cp, ',');
1394                 if (t)
1395                         *t = '\0';
1396
1397                 if (*cp) {
1398                         if (profile_has_subsection(profile, "fs_types", cp))
1399                                 push_string(&list, cp);
1400                         else if (strcmp(cp, "default") != 0)
1401                                 fprintf(stderr,
1402                                         _("\nWarning: the fs_type %s is not "
1403                                           "defined in mke2fs.conf\n\n"),
1404                                         cp);
1405                 }
1406                 if (t)
1407                         cp = t+1;
1408                 else
1409                         break;
1410         }
1411         free(parse_str);
1412         free(profile_type);
1413         if (is_hurd)
1414                 push_string(&list, "hurd");
1415         return (list.list);
1416 }
1417
1418 char *get_string_from_profile(char **types, const char *opt,
1419                                      const char *def_val)
1420 {
1421         char *ret = 0;
1422         int i;
1423
1424         for (i=0; types[i]; i++);
1425         for (i-=1; i >=0 ; i--) {
1426                 profile_get_string(profile, "fs_types", types[i],
1427                                    opt, 0, &ret);
1428                 if (ret)
1429                         return ret;
1430         }
1431         profile_get_string(profile, "defaults", opt, 0, def_val, &ret);
1432         return (ret);
1433 }
1434
1435 int get_int_from_profile(char **types, const char *opt, int def_val)
1436 {
1437         int ret;
1438         char **cpp;
1439
1440         profile_get_integer(profile, "defaults", opt, 0, def_val, &ret);
1441         for (cpp = types; *cpp; cpp++)
1442                 profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret);
1443         return ret;
1444 }
1445
1446 static unsigned int get_uint_from_profile(char **types, const char *opt,
1447                                         unsigned int def_val)
1448 {
1449         unsigned int ret;
1450         char **cpp;
1451
1452         profile_get_uint(profile, "defaults", opt, 0, def_val, &ret);
1453         for (cpp = types; *cpp; cpp++)
1454                 profile_get_uint(profile, "fs_types", *cpp, opt, ret, &ret);
1455         return ret;
1456 }
1457
1458 static double get_double_from_profile(char **types, const char *opt,
1459                                       double def_val)
1460 {
1461         double ret;
1462         char **cpp;
1463
1464         profile_get_double(profile, "defaults", opt, 0, def_val, &ret);
1465         for (cpp = types; *cpp; cpp++)
1466                 profile_get_double(profile, "fs_types", *cpp, opt, ret, &ret);
1467         return ret;
1468 }
1469
1470 int get_bool_from_profile(char **types, const char *opt, int def_val)
1471 {
1472         int ret;
1473         char **cpp;
1474
1475         profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret);
1476         for (cpp = types; *cpp; cpp++)
1477                 profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret);
1478         return ret;
1479 }
1480
1481 extern const char *mke2fs_default_profile;
1482 static const char *default_files[] = { "<default>", 0 };
1483
1484 struct device_param {
1485         unsigned long min_io;           /* prefered minimum IO size */
1486         unsigned long opt_io;           /* optimal IO size */
1487         unsigned long alignment_offset; /* alignment offset wrt physical block size */
1488         unsigned int dax:1;             /* supports dax? */
1489 };
1490
1491 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1492 /*
1493  * Sets the geometry of a device (stripe/stride), and returns the
1494  * device's alignment offset, if any, or a negative error.
1495  */
1496 static int get_device_geometry(const char *file,
1497                                unsigned int blocksize,
1498                                unsigned int psector_size,
1499                                struct device_param *dev_param)
1500 {
1501         int rc = -1;
1502         blkid_probe pr;
1503         blkid_topology tp;
1504         struct stat statbuf;
1505
1506         memset(dev_param, 0, sizeof(*dev_param));
1507
1508         /* Nothing to do for a regular file */
1509         if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode))
1510                 return 0;
1511
1512         pr = blkid_new_probe_from_filename(file);
1513         if (!pr)
1514                 goto out;
1515
1516         tp = blkid_probe_get_topology(pr);
1517         if (!tp)
1518                 goto out;
1519
1520         dev_param->min_io = blkid_topology_get_minimum_io_size(tp);
1521         dev_param->opt_io = blkid_topology_get_optimal_io_size(tp);
1522         if ((dev_param->min_io == 0) && (psector_size > blocksize))
1523                 dev_param->min_io = psector_size;
1524         if ((dev_param->opt_io == 0) && dev_param->min_io > 0)
1525                 dev_param->opt_io = dev_param->min_io;
1526         if ((dev_param->opt_io == 0) && (psector_size > blocksize))
1527                 dev_param->opt_io = psector_size;
1528
1529         dev_param->alignment_offset = blkid_topology_get_alignment_offset(tp);
1530 #ifdef HAVE_BLKID_TOPOLOGY_GET_DAX
1531         dev_param->dax = blkid_topology_get_dax(tp);
1532 #endif
1533         rc = 0;
1534 out:
1535         blkid_free_probe(pr);
1536         return rc;
1537 }
1538 #endif
1539
1540 static void PRS(int argc, char *argv[])
1541 {
1542         int             b, c, flags;
1543         int             cluster_size = 0;
1544         char            *tmp, **cpp;
1545         int             explicit_fssize = 0;
1546         int             blocksize = 0;
1547         int             inode_ratio = 0;
1548         int             inode_size = 0;
1549         unsigned long   flex_bg_size = 0;
1550         double          reserved_ratio = -1.0;
1551         int             lsector_size = 0, psector_size = 0;
1552         int             show_version_only = 0, is_device = 0;
1553         unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */
1554         errcode_t       retval;
1555         char *          oldpath = getenv("PATH");
1556         char *          extended_opts = 0;
1557         char *          fs_type = 0;
1558         char *          usage_types = 0;
1559         /*
1560          * NOTE: A few words about fs_blocks_count and blocksize:
1561          *
1562          * Initially, blocksize is set to zero, which implies 1024.
1563          * If -b is specified, blocksize is updated to the user's value.
1564          *
1565          * Next, the device size or the user's "blocks" command line argument
1566          * is used to set fs_blocks_count; the units are blocksize.
1567          *
1568          * Later, if blocksize hasn't been set and the profile specifies a
1569          * blocksize, then blocksize is updated and fs_blocks_count is scaled
1570          * appropriately.  Note the change in units!
1571          *
1572          * Finally, we complain about fs_blocks_count > 2^32 on a non-64bit fs.
1573          */
1574         blk64_t         fs_blocks_count = 0;
1575         long            sysval;
1576         int             s_opt = -1, r_opt = -1;
1577         char            *fs_features = 0;
1578         int             fs_features_size = 0;
1579         int             use_bsize;
1580         char            *newpath;
1581         int             pathlen = sizeof(PATH_SET) + 1;
1582 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1583         struct device_param dev_param;
1584 #endif
1585
1586         if (oldpath)
1587                 pathlen += strlen(oldpath);
1588         newpath = malloc(pathlen);
1589         if (!newpath) {
1590                 fprintf(stderr, "%s",
1591                         _("Couldn't allocate memory for new PATH.\n"));
1592                 exit(1);
1593         }
1594         strcpy(newpath, PATH_SET);
1595
1596         /* Update our PATH to include /sbin  */
1597         if (oldpath) {
1598                 strcat (newpath, ":");
1599                 strcat (newpath, oldpath);
1600         }
1601         putenv (newpath);
1602
1603         /* Determine the system page size if possible */
1604 #ifdef HAVE_SYSCONF
1605 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
1606 #define _SC_PAGESIZE _SC_PAGE_SIZE
1607 #endif
1608 #ifdef _SC_PAGESIZE
1609         sysval = sysconf(_SC_PAGESIZE);
1610         if (sysval > 0)
1611                 sys_page_size = sysval;
1612 #endif /* _SC_PAGESIZE */
1613 #endif /* HAVE_SYSCONF */
1614
1615         if ((tmp = getenv("MKE2FS_CONFIG")) != NULL)
1616                 config_fn[0] = tmp;
1617         profile_set_syntax_err_cb(syntax_err_report);
1618         retval = profile_init(config_fn, &profile);
1619         if (retval == ENOENT) {
1620                 retval = profile_init(default_files, &profile);
1621                 if (retval)
1622                         goto profile_error;
1623                 retval = profile_set_default(profile, mke2fs_default_profile);
1624                 if (retval)
1625                         goto profile_error;
1626         } else if (retval) {
1627 profile_error:
1628                 fprintf(stderr, _("Couldn't init profile successfully"
1629                                   " (error: %ld).\n"), retval);
1630                 exit(1);
1631         }
1632
1633         setbuf(stdout, NULL);
1634         setbuf(stderr, NULL);
1635         add_error_table(&et_ext2_error_table);
1636         add_error_table(&et_prof_error_table);
1637         memset(&fs_param, 0, sizeof(struct ext2_super_block));
1638         fs_param.s_rev_level = 1;  /* Create revision 1 filesystems now */
1639
1640         if (is_before_linux_ver(2, 2, 0))
1641                 fs_param.s_rev_level = 0;
1642
1643         if (argc && *argv) {
1644                 program_name = get_progname(*argv);
1645
1646                 /* If called as mkfs.ext3, create a journal inode */
1647                 if (!strcmp(program_name, "mkfs.ext3") ||
1648                     !strcmp(program_name, "mke3fs"))
1649                         journal_size = -1;
1650         }
1651
1652         while ((c = getopt (argc, argv,
1653                     "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) {
1654                 switch (c) {
1655                 case 'b':
1656                         blocksize = parse_num_blocks2(optarg, -1);
1657                         b = (blocksize > 0) ? blocksize : -blocksize;
1658                         if (b < EXT2_MIN_BLOCK_SIZE ||
1659                             b > EXT2_MAX_BLOCK_SIZE) {
1660                                 com_err(program_name, 0,
1661                                         _("invalid block size - %s"), optarg);
1662                                 exit(1);
1663                         }
1664                         if (blocksize > 4096)
1665                                 fprintf(stderr, _("Warning: blocksize %d not "
1666                                                   "usable on most systems.\n"),
1667                                         blocksize);
1668                         if (blocksize > 0)
1669                                 fs_param.s_log_block_size =
1670                                         int_log2(blocksize >>
1671                                                  EXT2_MIN_BLOCK_LOG_SIZE);
1672                         break;
1673                 case 'c':       /* Check for bad blocks */
1674                         cflag++;
1675                         break;
1676                 case 'C':
1677                         cluster_size = parse_num_blocks2(optarg, -1);
1678                         if (cluster_size <= EXT2_MIN_CLUSTER_SIZE ||
1679                             cluster_size > EXT2_MAX_CLUSTER_SIZE) {
1680                                 com_err(program_name, 0,
1681                                         _("invalid cluster size - %s"),
1682                                         optarg);
1683                                 exit(1);
1684                         }
1685                         break;
1686                 case 'd':
1687                         src_root_dir = optarg;
1688                         break;
1689                 case 'D':
1690                         direct_io = 1;
1691                         break;
1692                 case 'R':
1693                         com_err(program_name, 0, "%s",
1694                                 _("'-R' is deprecated, use '-E' instead"));
1695                         /* fallthrough */
1696                 case 'E':
1697                         extended_opts = optarg;
1698                         break;
1699                 case 'e':
1700                         if (strcmp(optarg, "continue") == 0)
1701                                 errors_behavior = EXT2_ERRORS_CONTINUE;
1702                         else if (strcmp(optarg, "remount-ro") == 0)
1703                                 errors_behavior = EXT2_ERRORS_RO;
1704                         else if (strcmp(optarg, "panic") == 0)
1705                                 errors_behavior = EXT2_ERRORS_PANIC;
1706                         else {
1707                                 com_err(program_name, 0,
1708                                         _("bad error behavior - %s"),
1709                                         optarg);
1710                                 usage();
1711                         }
1712                         break;
1713                 case 'F':
1714                         force++;
1715                         break;
1716                 case 'g':
1717                         fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
1718                         if (*tmp) {
1719                                 com_err(program_name, 0, "%s",
1720                                 _("Illegal number for blocks per group"));
1721                                 exit(1);
1722                         }
1723                         if ((fs_param.s_blocks_per_group % 8) != 0) {
1724                                 com_err(program_name, 0, "%s",
1725                                 _("blocks per group must be multiple of 8"));
1726                                 exit(1);
1727                         }
1728                         break;
1729                 case 'G':
1730                         flex_bg_size = strtoul(optarg, &tmp, 0);
1731                         if (*tmp) {
1732                                 com_err(program_name, 0, "%s",
1733                                         _("Illegal number for flex_bg size"));
1734                                 exit(1);
1735                         }
1736                         if (flex_bg_size < 1 ||
1737                             (flex_bg_size & (flex_bg_size-1)) != 0) {
1738                                 com_err(program_name, 0, "%s",
1739                                         _("flex_bg size must be a power of 2"));
1740                                 exit(1);
1741                         }
1742                         if (flex_bg_size > MAX_32_NUM) {
1743                                 com_err(program_name, 0,
1744                                 _("flex_bg size (%lu) must be less than"
1745                                 " or equal to 2^31"), flex_bg_size);
1746                                 exit(1);
1747                         }
1748                         break;
1749                 case 'i':
1750                         inode_ratio = parse_num_blocks(optarg, -1);
1751                         if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
1752                             inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024) {
1753                                 com_err(program_name, 0,
1754                                         _("invalid inode ratio %s (min %d/max %d)"),
1755                                         optarg, EXT2_MIN_BLOCK_SIZE,
1756                                         EXT2_MAX_BLOCK_SIZE * 1024);
1757                                 exit(1);
1758                         }
1759                         break;
1760                 case 'I':
1761                         inode_size = strtoul(optarg, &tmp, 0);
1762                         if (*tmp) {
1763                                 com_err(program_name, 0,
1764                                         _("invalid inode size - %s"), optarg);
1765                                 exit(1);
1766                         }
1767                         break;
1768                 case 'j':
1769                         if (!journal_size)
1770                                 journal_size = -1;
1771                         if (!journal_fc_size)
1772                                 journal_fc_size = -1;
1773                         break;
1774                 case 'J':
1775                         parse_journal_opts(optarg);
1776                         break;
1777                 case 'K':
1778                         fprintf(stderr, "%s",
1779                                 _("Warning: -K option is deprecated and "
1780                                   "should not be used anymore. Use "
1781                                   "\'-E nodiscard\' extended option "
1782                                   "instead!\n"));
1783                         discard = 0;
1784                         break;
1785                 case 'l':
1786                         bad_blocks_filename = realloc(bad_blocks_filename,
1787                                                       strlen(optarg) + 1);
1788                         if (!bad_blocks_filename) {
1789                                 com_err(program_name, ENOMEM, "%s",
1790                                         _("in malloc for bad_blocks_filename"));
1791                                 exit(1);
1792                         }
1793                         strcpy(bad_blocks_filename, optarg);
1794                         break;
1795                 case 'L':
1796                         volume_label = optarg;
1797                         if (strlen(volume_label) > EXT2_LABEL_LEN) {
1798                                 volume_label[EXT2_LABEL_LEN] = '\0';
1799                                 fprintf(stderr, _("Warning: label too long; will be truncated to '%s'\n\n"),
1800                                         volume_label);
1801                         }
1802                         break;
1803                 case 'm':
1804                         reserved_ratio = strtod(optarg, &tmp);
1805                         if ( *tmp || reserved_ratio > 50 ||
1806                              reserved_ratio < 0) {
1807                                 com_err(program_name, 0,
1808                                         _("invalid reserved blocks percent - %s"),
1809                                         optarg);
1810                                 exit(1);
1811                         }
1812                         break;
1813                 case 'M':
1814                         mount_dir = optarg;
1815                         break;
1816                 case 'n':
1817                         noaction++;
1818                         break;
1819                 case 'N':
1820                         num_inodes = strtoul(optarg, &tmp, 0);
1821                         if (*tmp) {
1822                                 com_err(program_name, 0,
1823                                         _("bad num inodes - %s"), optarg);
1824                                         exit(1);
1825                         }
1826                         break;
1827                 case 'o':
1828                         creator_os = optarg;
1829                         break;
1830                 case 'O':
1831                         retval = ext2fs_resize_mem(fs_features_size,
1832                                    fs_features_size + 1 + strlen(optarg),
1833                                                    &fs_features);
1834                         if (retval) {
1835                                 com_err(program_name, retval,
1836                                      _("while allocating fs_feature string"));
1837                                 exit(1);
1838                         }
1839                         if (fs_features_size)
1840                                 strcat(fs_features, ",");
1841                         else
1842                                 fs_features[0] = 0;
1843                         strcat(fs_features, optarg);
1844                         fs_features_size += 1 + strlen(optarg);
1845                         break;
1846                 case 'q':
1847                         quiet = 1;
1848                         break;
1849                 case 'r':
1850                         r_opt = strtoul(optarg, &tmp, 0);
1851                         if (*tmp) {
1852                                 com_err(program_name, 0,
1853                                         _("bad revision level - %s"), optarg);
1854                                 exit(1);
1855                         }
1856                         if (r_opt > EXT2_MAX_SUPP_REV) {
1857                                 com_err(program_name, EXT2_ET_REV_TOO_HIGH,
1858                                         _("while trying to create revision %d"), r_opt);
1859                                 exit(1);
1860                         }
1861                         fs_param.s_rev_level = r_opt;
1862                         break;
1863                 case 's':       /* deprecated */
1864                         s_opt = atoi(optarg);
1865                         break;
1866                 case 'S':
1867                         super_only = 1;
1868                         break;
1869                 case 't':
1870                         if (fs_type) {
1871                                 com_err(program_name, 0, "%s",
1872                                     _("The -t option may only be used once"));
1873                                 exit(1);
1874                         }
1875                         fs_type = strdup(optarg);
1876                         break;
1877                 case 'T':
1878                         if (usage_types) {
1879                                 com_err(program_name, 0, "%s",
1880                                     _("The -T option may only be used once"));
1881                                 exit(1);
1882                         }
1883                         usage_types = strdup(optarg);
1884                         break;
1885                 case 'U':
1886                         fs_uuid = optarg;
1887                         break;
1888                 case 'v':
1889                         verbose = 1;
1890                         break;
1891                 case 'V':
1892                         /* Print version number and exit */
1893                         show_version_only++;
1894                         break;
1895                 case 'z':
1896                         undo_file = optarg;
1897                         break;
1898                 default:
1899                         usage();
1900                 }
1901         }
1902         if ((optind == argc) && !show_version_only)
1903                 usage();
1904         device_name = argv[optind++];
1905
1906         if (!quiet || show_version_only)
1907                 fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION,
1908                          E2FSPROGS_DATE);
1909
1910         if (show_version_only) {
1911                 fprintf(stderr, _("\tUsing %s\n"),
1912                         error_message(EXT2_ET_BASE));
1913                 exit(0);
1914         }
1915
1916         /*
1917          * If there's no blocksize specified and there is a journal
1918          * device, use it to figure out the blocksize
1919          */
1920         if (blocksize <= 0 && journal_device) {
1921                 ext2_filsys     jfs;
1922                 io_manager      io_ptr;
1923
1924 #ifdef CONFIG_TESTIO_DEBUG
1925                 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1926                         io_ptr = test_io_manager;
1927                         test_io_backing_manager = unix_io_manager;
1928                 } else
1929 #endif
1930                         io_ptr = unix_io_manager;
1931                 retval = ext2fs_open(journal_device,
1932                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
1933                                      0, io_ptr, &jfs);
1934                 if (retval) {
1935                         com_err(program_name, retval,
1936                                 _("while trying to open journal device %s\n"),
1937                                 journal_device);
1938                         exit(1);
1939                 }
1940                 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
1941                         com_err(program_name, 0,
1942                                 _("Journal dev blocksize (%d) smaller than "
1943                                   "minimum blocksize %d\n"), jfs->blocksize,
1944                                 -blocksize);
1945                         exit(1);
1946                 }
1947                 blocksize = jfs->blocksize;
1948                 printf(_("Using journal device's blocksize: %d\n"), blocksize);
1949                 fs_param.s_log_block_size =
1950                         int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1951                 ext2fs_close_free(&jfs);
1952         }
1953
1954         if (optind < argc) {
1955                 fs_blocks_count = parse_num_blocks2(argv[optind++],
1956                                                    fs_param.s_log_block_size);
1957                 if (!fs_blocks_count) {
1958                         com_err(program_name, 0,
1959                                 _("invalid blocks '%s' on device '%s'"),
1960                                 argv[optind - 1], device_name);
1961                         exit(1);
1962                 }
1963         }
1964         if (optind < argc)
1965                 usage();
1966
1967         profile_get_integer(profile, "options", "sync_kludge", 0, 0,
1968                             &sync_kludge);
1969         tmp = getenv("MKE2FS_SYNC");
1970         if (tmp)
1971                 sync_kludge = atoi(tmp);
1972
1973         profile_get_integer(profile, "options", "proceed_delay", 0, 0,
1974                             &proceed_delay);
1975
1976         if (fs_blocks_count)
1977                 explicit_fssize = 1;
1978
1979         check_mount(device_name, force, _("filesystem"));
1980
1981         /* Determine the size of the device (if possible) */
1982         if (noaction && fs_blocks_count) {
1983                 dev_size = fs_blocks_count;
1984                 retval = 0;
1985         } else
1986                 retval = ext2fs_get_device_size2(device_name,
1987                                                  EXT2_BLOCK_SIZE(&fs_param),
1988                                                  &dev_size);
1989         if (retval == ENOENT) {
1990                 int fd;
1991
1992                 if (!explicit_fssize) {
1993                         fprintf(stderr,
1994                                 _("The file %s does not exist and no "
1995                                   "size was specified.\n"), device_name);
1996                         exit(1);
1997                 }
1998                 fd = ext2fs_open_file(device_name,
1999                                       O_CREAT | O_WRONLY, 0666);
2000                 if (fd < 0) {
2001                         retval = errno;
2002                 } else {
2003                         dev_size = 0;
2004                         retval = 0;
2005                         close(fd);
2006                         printf(_("Creating regular file %s\n"), device_name);
2007                 }
2008         }
2009         if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
2010                 com_err(program_name, retval, "%s",
2011                         _("while trying to determine filesystem size"));
2012                 exit(1);
2013         }
2014         if (!fs_blocks_count) {
2015                 if (retval == EXT2_ET_UNIMPLEMENTED) {
2016                         com_err(program_name, 0, "%s",
2017                                 _("Couldn't determine device size; you "
2018                                 "must specify\nthe size of the "
2019                                 "filesystem\n"));
2020                         exit(1);
2021                 } else {
2022                         if (dev_size == 0) {
2023                                 com_err(program_name, 0, "%s",
2024                                 _("Device size reported to be zero.  "
2025                                   "Invalid partition specified, or\n\t"
2026                                   "partition table wasn't reread "
2027                                   "after running fdisk, due to\n\t"
2028                                   "a modified partition being busy "
2029                                   "and in use.  You may need to reboot\n\t"
2030                                   "to re-read your partition table.\n"
2031                                   ));
2032                                 exit(1);
2033                         }
2034                         fs_blocks_count = dev_size;
2035                         if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param))
2036                                 fs_blocks_count &= ~((blk64_t) ((sys_page_size /
2037                                              EXT2_BLOCK_SIZE(&fs_param))-1));
2038                 }
2039         } else if (!force && is_device && (fs_blocks_count > dev_size)) {
2040                 com_err(program_name, 0, "%s",
2041                         _("Filesystem larger than apparent device size."));
2042                 proceed_question(proceed_delay);
2043         }
2044
2045         if (!fs_type)
2046                 profile_get_string(profile, "devices", device_name,
2047                                    "fs_type", 0, &fs_type);
2048         if (!usage_types)
2049                 profile_get_string(profile, "devices", device_name,
2050                                    "usage_types", 0, &usage_types);
2051
2052         /*
2053          * We have the file system (or device) size, so we can now
2054          * determine the appropriate file system types so the fs can
2055          * be appropriately configured.
2056          */
2057         fs_types = parse_fs_type(fs_type, usage_types, &fs_param,
2058                                  fs_blocks_count ? fs_blocks_count : dev_size,
2059                                  argv[0]);
2060         if (!fs_types) {
2061                 fprintf(stderr, "%s", _("Failed to parse fs types list\n"));
2062                 exit(1);
2063         }
2064
2065         /* Figure out what features should be enabled */
2066
2067         tmp = NULL;
2068         if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) {
2069                 tmp = get_string_from_profile(fs_types, "base_features",
2070                       "sparse_super,large_file,filetype,resize_inode,dir_index");
2071                 edit_feature(tmp, &fs_param.s_feature_compat);
2072                 free(tmp);
2073
2074                 /* And which mount options as well */
2075                 tmp = get_string_from_profile(fs_types, "default_mntopts",
2076                                               "acl,user_xattr");
2077                 edit_mntopts(tmp, &fs_param.s_default_mount_opts);
2078                 if (tmp)
2079                         free(tmp);
2080
2081                 for (cpp = fs_types; *cpp; cpp++) {
2082                         tmp = NULL;
2083                         profile_get_string(profile, "fs_types", *cpp,
2084                                            "features", "", &tmp);
2085                         if (tmp && *tmp)
2086                                 edit_feature(tmp, &fs_param.s_feature_compat);
2087                         if (tmp)
2088                                 free(tmp);
2089                 }
2090                 tmp = get_string_from_profile(fs_types, "default_features",
2091                                               "");
2092         }
2093         /* Mask off features which aren't supported by the Hurd */
2094         if (for_hurd(creator_os)) {
2095                 ext2fs_clear_feature_filetype(&fs_param);
2096                 ext2fs_clear_feature_huge_file(&fs_param);
2097                 ext2fs_clear_feature_metadata_csum(&fs_param);
2098                 ext2fs_clear_feature_ea_inode(&fs_param);
2099                 ext2fs_clear_feature_casefold(&fs_param);
2100         }
2101         edit_feature(fs_features ? fs_features : tmp,
2102                      &fs_param.s_feature_compat);
2103         if (tmp)
2104                 free(tmp);
2105         (void) ext2fs_free_mem(&fs_features);
2106         /*
2107          * If the user specified features incompatible with the Hurd, complain
2108          */
2109         if (for_hurd(creator_os)) {
2110                 if (ext2fs_has_feature_filetype(&fs_param)) {
2111                         fprintf(stderr, "%s", _("The HURD does not support the "
2112                                                 "filetype feature.\n"));
2113                         exit(1);
2114                 }
2115                 if (ext2fs_has_feature_huge_file(&fs_param)) {
2116                         fprintf(stderr, "%s", _("The HURD does not support the "
2117                                                 "huge_file feature.\n"));
2118                         exit(1);
2119                 }
2120                 if (ext2fs_has_feature_metadata_csum(&fs_param)) {
2121                         fprintf(stderr, "%s", _("The HURD does not support the "
2122                                                 "metadata_csum feature.\n"));
2123                         exit(1);
2124                 }
2125                 if (ext2fs_has_feature_ea_inode(&fs_param)) {
2126                         fprintf(stderr, "%s", _("The HURD does not support the "
2127                                                 "ea_inode feature.\n"));
2128                         exit(1);
2129                 }
2130         }
2131
2132         /* Get the hardware sector sizes, if available */
2133         retval = ext2fs_get_device_sectsize(device_name, &lsector_size);
2134         if (retval) {
2135                 com_err(program_name, retval, "%s",
2136                         _("while trying to determine hardware sector size"));
2137                 exit(1);
2138         }
2139         retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size);
2140         if (retval) {
2141                 com_err(program_name, retval, "%s",
2142                         _("while trying to determine physical sector size"));
2143                 exit(1);
2144         }
2145
2146         tmp = getenv("MKE2FS_DEVICE_SECTSIZE");
2147         if (tmp != NULL)
2148                 lsector_size = atoi(tmp);
2149         tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE");
2150         if (tmp != NULL)
2151                 psector_size = atoi(tmp);
2152
2153         /* Older kernels may not have physical/logical distinction */
2154         if (!psector_size)
2155                 psector_size = lsector_size;
2156
2157         if (blocksize <= 0) {
2158                 use_bsize = get_int_from_profile(fs_types, "blocksize", 4096);
2159
2160                 if (use_bsize == -1) {
2161                         use_bsize = sys_page_size;
2162                         if (is_before_linux_ver(2, 6, 0) && use_bsize > 4096)
2163                                 use_bsize = 4096;
2164                 }
2165                 if (lsector_size && use_bsize < lsector_size)
2166                         use_bsize = lsector_size;
2167                 if ((blocksize < 0) && (use_bsize < (-blocksize)))
2168                         use_bsize = -blocksize;
2169                 blocksize = use_bsize;
2170                 fs_blocks_count /= (blocksize / 1024);
2171         } else {
2172                 if (blocksize < lsector_size) {                 /* Impossible */
2173                         com_err(program_name, EINVAL, "%s",
2174                                 _("while setting blocksize; too small "
2175                                   "for device\n"));
2176                         exit(1);
2177                 } else if ((blocksize < psector_size) &&
2178                            (psector_size <= sys_page_size)) {   /* Suboptimal */
2179                         fprintf(stderr, _("Warning: specified blocksize %d is "
2180                                 "less than device physical sectorsize %d\n"),
2181                                 blocksize, psector_size);
2182                 }
2183         }
2184
2185         fs_param.s_log_block_size =
2186                 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
2187
2188         /*
2189          * We now need to do a sanity check of fs_blocks_count for
2190          * 32-bit vs 64-bit block number support.
2191          */
2192         if ((fs_blocks_count > MAX_32_NUM) &&
2193             ext2fs_has_feature_64bit(&fs_param))
2194                 ext2fs_clear_feature_resize_inode(&fs_param);
2195         if ((fs_blocks_count > MAX_32_NUM) &&
2196             !ext2fs_has_feature_64bit(&fs_param) &&
2197             get_bool_from_profile(fs_types, "auto_64-bit_support", 0)) {
2198                 ext2fs_set_feature_64bit(&fs_param);
2199                 ext2fs_clear_feature_resize_inode(&fs_param);
2200         }
2201         if ((fs_blocks_count > MAX_32_NUM) &&
2202             !ext2fs_has_feature_64bit(&fs_param)) {
2203                 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2204                                   "too big to be expressed\n\t"
2205                                   "in 32 bits using a blocksize of %d.\n"),
2206                         program_name, (unsigned long long) fs_blocks_count,
2207                         device_name, EXT2_BLOCK_SIZE(&fs_param));
2208                 exit(1);
2209         }
2210         /*
2211          * Guard against group descriptor count overflowing... Mostly to avoid
2212          * strange results for absurdly large devices.  This is in log2:
2213          * (blocksize) * (bits per byte) * (maximum number of block groups)
2214          */
2215         if (fs_blocks_count >
2216             (1ULL << (EXT2_BLOCK_SIZE_BITS(&fs_param) + 3 + 32)) - 1) {
2217                 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2218                                   "too big to create\n\t"
2219                                   "a filesystem using a blocksize of %d.\n"),
2220                         program_name, (unsigned long long) fs_blocks_count,
2221                         device_name, EXT2_BLOCK_SIZE(&fs_param));
2222                 exit(1);
2223         }
2224
2225         ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2226
2227         if (ext2fs_has_feature_journal_dev(&fs_param)) {
2228                 int i;
2229
2230                 for (i=0; fs_types[i]; i++) {
2231                         free(fs_types[i]);
2232                         fs_types[i] = 0;
2233                 }
2234                 fs_types[0] = strdup("journal");
2235                 fs_types[1] = 0;
2236         }
2237
2238         if (verbose) {
2239                 fputs(_("fs_types for mke2fs.conf resolution: "), stdout);
2240                 print_str_list(fs_types);
2241         }
2242
2243         if (r_opt == EXT2_GOOD_OLD_REV &&
2244             (fs_param.s_feature_compat || fs_param.s_feature_incompat ||
2245              fs_param.s_feature_ro_compat)) {
2246                 fprintf(stderr, "%s", _("Filesystem features not supported "
2247                                         "with revision 0 filesystems\n"));
2248                 exit(1);
2249         }
2250
2251         if (s_opt > 0) {
2252                 if (r_opt == EXT2_GOOD_OLD_REV) {
2253                         fprintf(stderr, "%s",
2254                                 _("Sparse superblocks not supported "
2255                                   "with revision 0 filesystems\n"));
2256                         exit(1);
2257                 }
2258                 ext2fs_set_feature_sparse_super(&fs_param);
2259         } else if (s_opt == 0)
2260                 ext2fs_clear_feature_sparse_super(&fs_param);
2261
2262         if (journal_size != 0) {
2263                 if (r_opt == EXT2_GOOD_OLD_REV) {
2264                         fprintf(stderr, "%s", _("Journals not supported with "
2265                                                 "revision 0 filesystems\n"));
2266                         exit(1);
2267                 }
2268                 ext2fs_set_feature_journal(&fs_param);
2269         }
2270
2271         /* Get reserved_ratio from profile if not specified on cmd line. */
2272         if (reserved_ratio < 0.0) {
2273                 reserved_ratio = get_double_from_profile(
2274                                         fs_types, "reserved_ratio", 5.0);
2275                 if (reserved_ratio > 50 || reserved_ratio < 0) {
2276                         com_err(program_name, 0,
2277                                 _("invalid reserved blocks percent - %lf"),
2278                                 reserved_ratio);
2279                         exit(1);
2280                 }
2281         }
2282
2283         if (ext2fs_has_feature_journal_dev(&fs_param)) {
2284                 reserved_ratio = 0;
2285                 fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
2286                 fs_param.s_feature_compat = 0;
2287                 fs_param.s_feature_ro_compat &=
2288                                         EXT4_FEATURE_RO_COMPAT_METADATA_CSUM;
2289         }
2290
2291         /* Check the user's mkfs options for 64bit */
2292         if (ext2fs_has_feature_64bit(&fs_param) &&
2293             !ext2fs_has_feature_extents(&fs_param)) {
2294                 printf("%s", _("Extents MUST be enabled for a 64-bit "
2295                                "filesystem.  Pass -O extents to rectify.\n"));
2296                 exit(1);
2297         }
2298
2299         /* Set first meta blockgroup via an environment variable */
2300         /* (this is mostly for debugging purposes) */
2301         if (ext2fs_has_feature_meta_bg(&fs_param) &&
2302             (tmp = getenv("MKE2FS_FIRST_META_BG")))
2303                 fs_param.s_first_meta_bg = atoi(tmp);
2304         if (ext2fs_has_feature_bigalloc(&fs_param)) {
2305                 if (!cluster_size)
2306                         cluster_size = get_int_from_profile(fs_types,
2307                                                             "cluster_size",
2308                                                             blocksize*16);
2309                 fs_param.s_log_cluster_size =
2310                         int_log2(cluster_size >> EXT2_MIN_CLUSTER_LOG_SIZE);
2311                 if (fs_param.s_log_cluster_size &&
2312                     fs_param.s_log_cluster_size < fs_param.s_log_block_size) {
2313                         com_err(program_name, 0, "%s",
2314                                 _("The cluster size may not be "
2315                                   "smaller than the block size.\n"));
2316                         exit(1);
2317                 }
2318         } else if (cluster_size) {
2319                 com_err(program_name, 0, "%s",
2320                         _("specifying a cluster size requires the "
2321                           "bigalloc feature"));
2322                 exit(1);
2323         } else
2324                 fs_param.s_log_cluster_size = fs_param.s_log_block_size;
2325
2326         if (inode_ratio == 0) {
2327                 inode_ratio = get_int_from_profile(fs_types, "inode_ratio",
2328                                                    8192);
2329                 if (inode_ratio < blocksize)
2330                         inode_ratio = blocksize;
2331                 if (inode_ratio < EXT2_CLUSTER_SIZE(&fs_param))
2332                         inode_ratio = EXT2_CLUSTER_SIZE(&fs_param);
2333         }
2334
2335 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
2336         retval = get_device_geometry(device_name, blocksize,
2337                                      psector_size, &dev_param);
2338         if (retval < 0) {
2339                 fprintf(stderr,
2340                         _("warning: Unable to get device geometry for %s\n"),
2341                         device_name);
2342         } else {
2343                 /* setting stripe/stride to blocksize is pointless */
2344                 if (dev_param.min_io > (unsigned) blocksize)
2345                         fs_param.s_raid_stride = dev_param.min_io / blocksize;
2346                 if (dev_param.opt_io > (unsigned) blocksize) {
2347                         fs_param.s_raid_stripe_width =
2348                                                 dev_param.opt_io / blocksize;
2349                 }
2350
2351                 if (dev_param.alignment_offset) {
2352                         printf(_("%s alignment is offset by %lu bytes.\n"),
2353                                device_name, dev_param.alignment_offset);
2354                         printf(_("This may result in very poor performance, "
2355                                   "(re)-partitioning suggested.\n"));
2356                 }
2357
2358                 if (dev_param.dax && blocksize != sys_page_size) {
2359                         fprintf(stderr,
2360                                 _("%s is capable of DAX but current block size "
2361                                   "%u is different from system page size %u so "
2362                                   "filesystem will not support DAX.\n"),
2363                                 device_name, blocksize, sys_page_size);
2364                 }
2365         }
2366 #endif
2367
2368         num_backups = get_int_from_profile(fs_types, "num_backup_sb", 2);
2369
2370         blocksize = EXT2_BLOCK_SIZE(&fs_param);
2371
2372         /*
2373          * Initialize s_desc_size so that the parse_extended_opts()
2374          * can correctly handle "-E resize=NNN" if the 64-bit option
2375          * is set.
2376          */
2377         if (ext2fs_has_feature_64bit(&fs_param))
2378                 fs_param.s_desc_size = EXT2_MIN_DESC_SIZE_64BIT;
2379
2380         /* This check should happen beyond the last assignment to blocksize */
2381         if (blocksize > sys_page_size) {
2382                 if (!force) {
2383                         com_err(program_name, 0,
2384                                 _("%d-byte blocks too big for system (max %d)"),
2385                                 blocksize, sys_page_size);
2386                         proceed_question(proceed_delay);
2387                 }
2388                 fprintf(stderr, _("Warning: %d-byte blocks too big for system "
2389                                   "(max %d), forced to continue\n"),
2390                         blocksize, sys_page_size);
2391         }
2392
2393         /* Metadata checksumming wasn't totally stable before 3.18. */
2394         if (is_before_linux_ver(3, 18, 0) &&
2395             ext2fs_has_feature_metadata_csum(&fs_param))
2396                 fprintf(stderr, _("Suggestion: Use Linux kernel >= 3.18 for "
2397                         "improved stability of the metadata and journal "
2398                         "checksum features.\n"));
2399
2400         /*
2401          * On newer kernels we do have lazy_itable_init support. So pick the
2402          * right default in case ext4 module is not loaded.
2403          */
2404         if (is_before_linux_ver(2, 6, 37))
2405                 lazy_itable_init = 0;
2406         else
2407                 lazy_itable_init = 1;
2408
2409         if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0)
2410                 lazy_itable_init = 1;
2411
2412         lazy_itable_init = get_bool_from_profile(fs_types,
2413                                                  "lazy_itable_init",
2414                                                  lazy_itable_init);
2415         discard = get_bool_from_profile(fs_types, "discard" , discard);
2416         journal_flags |= get_bool_from_profile(fs_types,
2417                                                "lazy_journal_init", 0) ?
2418                                                EXT2_MKJOURNAL_LAZYINIT : 0;
2419         journal_flags |= EXT2_MKJOURNAL_NO_MNT_CHECK;
2420
2421         if (!journal_location_string)
2422                 journal_location_string = get_string_from_profile(fs_types,
2423                                                 "journal_location", "");
2424         if ((journal_location == ~0ULL) && journal_location_string &&
2425             *journal_location_string)
2426                 journal_location = parse_num_blocks2(journal_location_string,
2427                                                 fs_param.s_log_block_size);
2428         free(journal_location_string);
2429
2430         packed_meta_blocks = get_bool_from_profile(fs_types,
2431                                                    "packed_meta_blocks", 0);
2432         if (packed_meta_blocks)
2433                 journal_location = 0;
2434
2435         if (ext2fs_has_feature_casefold(&fs_param)) {
2436                 char *ef, *en = get_string_from_profile(fs_types,
2437                                                         "encoding", "utf8");
2438                 int encoding = e2p_str2encoding(en);
2439
2440                 if (encoding < 0) {
2441                         com_err(program_name, 0,
2442                                 _("Unknown filename encoding from profile: %s"),
2443                                 en);
2444                         exit(1);
2445                 }
2446                 free(en);
2447                 fs_param.s_encoding = encoding;
2448                 ef = get_string_from_profile(fs_types, "encoding_flags", NULL);
2449                 if (ef) {
2450                         if (e2p_str2encoding_flags(encoding, ef,
2451                                         &fs_param.s_encoding_flags) < 0) {
2452                                 com_err(program_name, 0,
2453                         _("Unknown encoding flags from profile: %s"), ef);
2454                                 exit(1);
2455                         }
2456                         free(ef);
2457                 } else
2458                         fs_param.s_encoding_flags =
2459                                 e2p_get_encoding_flags(encoding);
2460         }
2461
2462         /* Get options from profile */
2463         for (cpp = fs_types; *cpp; cpp++) {
2464                 tmp = NULL;
2465                 profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp);
2466                         if (tmp && *tmp)
2467                                 parse_extended_opts(&fs_param, tmp);
2468                         free(tmp);
2469         }
2470
2471         if (extended_opts)
2472                 parse_extended_opts(&fs_param, extended_opts);
2473
2474         if (explicit_fssize == 0 && offset > 0) {
2475                 fs_blocks_count -= offset / EXT2_BLOCK_SIZE(&fs_param);
2476                 ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2477                 fprintf(stderr,
2478                         _("\nWarning: offset specified without an "
2479                           "explicit file system size.\n"
2480                           "Creating a file system with %llu blocks "
2481                           "but this might\n"
2482                           "not be what you want.\n\n"),
2483                         (unsigned long long) fs_blocks_count);
2484         }
2485
2486         if (quotatype_bits & QUOTA_PRJ_BIT)
2487                 ext2fs_set_feature_project(&fs_param);
2488
2489         if (ext2fs_has_feature_project(&fs_param)) {
2490                 quotatype_bits |= QUOTA_PRJ_BIT;
2491                 if (inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2492                         com_err(program_name, 0,
2493                                 _("%d byte inodes are too small for "
2494                                   "project quota"),
2495                                 inode_size);
2496                         exit(1);
2497                 }
2498                 if (inode_size == 0) {
2499                         inode_size = get_int_from_profile(fs_types,
2500                                                           "inode_size", 0);
2501                         if (inode_size <= EXT2_GOOD_OLD_INODE_SIZE*2)
2502                                 inode_size = EXT2_GOOD_OLD_INODE_SIZE*2;
2503                 }
2504         }
2505
2506         /* Don't allow user to set both metadata_csum and uninit_bg bits. */
2507         if (ext2fs_has_feature_metadata_csum(&fs_param) &&
2508             ext2fs_has_feature_gdt_csum(&fs_param))
2509                 ext2fs_clear_feature_gdt_csum(&fs_param);
2510
2511         /* Can't support bigalloc feature without extents feature */
2512         if (ext2fs_has_feature_bigalloc(&fs_param) &&
2513             !ext2fs_has_feature_extents(&fs_param)) {
2514                 com_err(program_name, 0, "%s",
2515                         _("Can't support bigalloc feature without "
2516                           "extents feature"));
2517                 exit(1);
2518         }
2519
2520         if (ext2fs_has_feature_meta_bg(&fs_param) &&
2521             ext2fs_has_feature_resize_inode(&fs_param)) {
2522                 fprintf(stderr, "%s", _("The resize_inode and meta_bg "
2523                                         "features are not compatible.\n"
2524                                         "They can not be both enabled "
2525                                         "simultaneously.\n"));
2526                 exit(1);
2527         }
2528
2529         if (!quiet && ext2fs_has_feature_bigalloc(&fs_param))
2530                 fprintf(stderr, "%s", _("\nWarning: the bigalloc feature is "
2531                                   "still under development\n"
2532                                   "See https://ext4.wiki.kernel.org/"
2533                                   "index.php/Bigalloc for more information\n\n"));
2534
2535         /*
2536          * Since sparse_super is the default, we would only have a problem
2537          * here if it was explicitly disabled.
2538          */
2539         if (ext2fs_has_feature_resize_inode(&fs_param) &&
2540             !ext2fs_has_feature_sparse_super(&fs_param)) {
2541                 com_err(program_name, 0, "%s",
2542                         _("reserved online resize blocks not supported "
2543                           "on non-sparse filesystem"));
2544                 exit(1);
2545         }
2546
2547         if (fs_param.s_blocks_per_group) {
2548                 if (fs_param.s_blocks_per_group < 256 ||
2549                     fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) {
2550                         com_err(program_name, 0, "%s",
2551                                 _("blocks per group count out of range"));
2552                         exit(1);
2553                 }
2554         }
2555
2556         /*
2557          * If the bigalloc feature is enabled, then the -g option will
2558          * specify the number of clusters per group.
2559          */
2560         if (ext2fs_has_feature_bigalloc(&fs_param)) {
2561                 fs_param.s_clusters_per_group = fs_param.s_blocks_per_group;
2562                 fs_param.s_blocks_per_group = 0;
2563         }
2564
2565         if (inode_size == 0)
2566                 inode_size = get_int_from_profile(fs_types, "inode_size", 0);
2567         if (!flex_bg_size && ext2fs_has_feature_flex_bg(&fs_param))
2568                 flex_bg_size = get_uint_from_profile(fs_types,
2569                                                      "flex_bg_size", 16);
2570         if (flex_bg_size) {
2571                 if (!ext2fs_has_feature_flex_bg(&fs_param)) {
2572                         com_err(program_name, 0, "%s",
2573                                 _("Flex_bg feature not enabled, so "
2574                                   "flex_bg size may not be specified"));
2575                         exit(1);
2576                 }
2577                 fs_param.s_log_groups_per_flex = int_log2(flex_bg_size);
2578         }
2579
2580         if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) {
2581                 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
2582                     inode_size > EXT2_BLOCK_SIZE(&fs_param) ||
2583                     inode_size & (inode_size - 1)) {
2584                         com_err(program_name, 0,
2585                                 _("invalid inode size %d (min %d/max %d)"),
2586                                 inode_size, EXT2_GOOD_OLD_INODE_SIZE,
2587                                 blocksize);
2588                         exit(1);
2589                 }
2590                 fs_param.s_inode_size = inode_size;
2591         }
2592
2593         /*
2594          * If inode size is 128 and inline data is enabled, we need
2595          * to notify users that inline data will never be useful.
2596          */
2597         if (ext2fs_has_feature_inline_data(&fs_param) &&
2598             fs_param.s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2599                 com_err(program_name, 0,
2600                         _("%d byte inodes are too small for inline data; "
2601                           "specify larger size"),
2602                         fs_param.s_inode_size);
2603                 exit(1);
2604         }
2605
2606         /* Make sure number of inodes specified will fit in 32 bits */
2607         if (num_inodes == 0) {
2608                 unsigned long long n;
2609                 n = ext2fs_blocks_count(&fs_param) * blocksize / inode_ratio;
2610                 if (n > MAX_32_NUM) {
2611                         if (ext2fs_has_feature_64bit(&fs_param))
2612                                 num_inodes = MAX_32_NUM;
2613                         else {
2614                                 com_err(program_name, 0,
2615                                         _("too many inodes (%llu), raise "
2616                                           "inode ratio?"),
2617                                         (unsigned long long) n);
2618                                 exit(1);
2619                         }
2620                 }
2621         } else if (num_inodes > MAX_32_NUM) {
2622                 com_err(program_name, 0,
2623                         _("too many inodes (%llu), specify < 2^32 inodes"),
2624                         (unsigned long long) num_inodes);
2625                 exit(1);
2626         }
2627         /*
2628          * Calculate number of inodes based on the inode ratio
2629          */
2630         fs_param.s_inodes_count = num_inodes ? num_inodes :
2631                 (ext2fs_blocks_count(&fs_param) * blocksize) / inode_ratio;
2632
2633         if ((((unsigned long long)fs_param.s_inodes_count) *
2634              (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >=
2635             ((ext2fs_blocks_count(&fs_param)) *
2636              EXT2_BLOCK_SIZE(&fs_param))) {
2637                 com_err(program_name, 0, _("inode_size (%u) * inodes_count "
2638                                           "(%u) too big for a\n\t"
2639                                           "filesystem with %llu blocks, "
2640                                           "specify higher inode_ratio (-i)\n\t"
2641                                           "or lower inode count (-N).\n"),
2642                         inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE,
2643                         fs_param.s_inodes_count,
2644                         (unsigned long long) ext2fs_blocks_count(&fs_param));
2645                 exit(1);
2646         }
2647
2648         /*
2649          * Calculate number of blocks to reserve
2650          */
2651         ext2fs_r_blocks_count_set(&fs_param, reserved_ratio *
2652                                   ext2fs_blocks_count(&fs_param) / 100.0);
2653
2654         if (ext2fs_has_feature_sparse_super2(&fs_param)) {
2655                 if (num_backups >= 1)
2656                         fs_param.s_backup_bgs[0] = 1;
2657                 if (num_backups >= 2)
2658                         fs_param.s_backup_bgs[1] = ~0;
2659         }
2660
2661         free(fs_type);
2662         free(usage_types);
2663
2664         /* The isatty() test is so we don't break existing scripts */
2665         flags = CREATE_FILE;
2666         if (isatty(0) && isatty(1) && !offset)
2667                 flags |= CHECK_FS_EXIST;
2668         if (!quiet)
2669                 flags |= VERBOSE_CREATE;
2670         if (!explicit_fssize)
2671                 flags |= NO_SIZE;
2672         if (!check_plausibility(device_name, flags, &is_device) && !force)
2673                 proceed_question(proceed_delay);
2674 }
2675
2676 static int should_do_undo(const char *name)
2677 {
2678         errcode_t retval;
2679         io_channel channel;
2680         __u16   s_magic;
2681         struct ext2_super_block super;
2682         io_manager manager = unix_io_manager;
2683         int csum_flag, force_undo;
2684
2685         csum_flag = ext2fs_has_feature_metadata_csum(&fs_param) ||
2686                     ext2fs_has_feature_gdt_csum(&fs_param);
2687         force_undo = get_int_from_profile(fs_types, "force_undo", 0);
2688         if (!force_undo && (!csum_flag || !lazy_itable_init))
2689                 return 0;
2690
2691         retval = manager->open(name, IO_FLAG_EXCLUSIVE,  &channel);
2692         if (retval) {
2693                 /*
2694                  * We don't handle error cases instead we
2695                  * declare that the file system doesn't exist
2696                  * and let the rest of mke2fs take care of
2697                  * error
2698                  */
2699                 retval = 0;
2700                 goto open_err_out;
2701         }
2702
2703         io_channel_set_blksize(channel, SUPERBLOCK_OFFSET);
2704         retval = io_channel_read_blk64(channel, 1, -SUPERBLOCK_SIZE, &super);
2705         if (retval) {
2706                 retval = 0;
2707                 goto err_out;
2708         }
2709
2710 #if defined(WORDS_BIGENDIAN)
2711         s_magic = ext2fs_swab16(super.s_magic);
2712 #else
2713         s_magic = super.s_magic;
2714 #endif
2715
2716         if (s_magic == EXT2_SUPER_MAGIC)
2717                 retval = 1;
2718
2719 err_out:
2720         io_channel_close(channel);
2721
2722 open_err_out:
2723
2724         return retval;
2725 }
2726
2727 static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr)
2728 {
2729         errcode_t retval = ENOMEM;
2730         char *tdb_dir = NULL, *tdb_file = NULL;
2731         char *dev_name, *tmp_name;
2732         int free_tdb_dir = 0;
2733
2734         /* (re)open a specific undo file */
2735         if (undo_file && undo_file[0] != 0) {
2736                 retval = set_undo_io_backing_manager(*io_ptr);
2737                 if (retval)
2738                         goto err;
2739                 *io_ptr = undo_io_manager;
2740                 retval = set_undo_io_backup_file(undo_file);
2741                 if (retval)
2742                         goto err;
2743                 printf(_("Overwriting existing filesystem; this can be undone "
2744                          "using the command:\n"
2745                          "    e2undo %s %s\n\n"), undo_file, name);
2746                 return retval;
2747         }
2748
2749         /*
2750          * Configuration via a conf file would be
2751          * nice
2752          */
2753         tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
2754         if (!tdb_dir) {
2755                 profile_get_string(profile, "defaults",
2756                                    "undo_dir", 0, "/var/lib/e2fsprogs",
2757                                    &tdb_dir);
2758                 free_tdb_dir = 1;
2759         }
2760
2761         if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
2762             access(tdb_dir, W_OK)) {
2763                 if (free_tdb_dir)
2764                         free(tdb_dir);
2765                 return 0;
2766         }
2767
2768         tmp_name = strdup(name);
2769         if (!tmp_name)
2770                 goto errout;
2771         dev_name = basename(tmp_name);
2772         tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
2773         if (!tdb_file) {
2774                 free(tmp_name);
2775                 goto errout;
2776         }
2777         sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, dev_name);
2778         free(tmp_name);
2779
2780         if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
2781                 retval = errno;
2782                 com_err(program_name, retval,
2783                         _("while trying to delete %s"), tdb_file);
2784                 goto errout;
2785         }
2786
2787         retval = set_undo_io_backing_manager(*io_ptr);
2788         if (retval)
2789                 goto errout;
2790         *io_ptr = undo_io_manager;
2791         retval = set_undo_io_backup_file(tdb_file);
2792         if (retval)
2793                 goto errout;
2794         printf(_("Overwriting existing filesystem; this can be undone "
2795                  "using the command:\n"
2796                  "    e2undo %s %s\n\n"), tdb_file, name);
2797
2798         if (free_tdb_dir)
2799                 free(tdb_dir);
2800         free(tdb_file);
2801         return 0;
2802
2803 errout:
2804         if (free_tdb_dir)
2805                 free(tdb_dir);
2806         free(tdb_file);
2807 err:
2808         com_err(program_name, retval, "%s",
2809                 _("while trying to setup undo file\n"));
2810         return retval;
2811 }
2812
2813 static int mke2fs_discard_device(ext2_filsys fs)
2814 {
2815         struct ext2fs_numeric_progress_struct progress;
2816         blk64_t blocks = ext2fs_blocks_count(fs->super);
2817         blk64_t count = DISCARD_STEP_MB;
2818         blk64_t cur = 0;
2819         int retval = 0;
2820
2821         /*
2822          * Let's try if discard really works on the device, so
2823          * we do not print numeric progress resulting in failure
2824          * afterwards.
2825          */
2826         retval = io_channel_discard(fs->io, 0, 1);
2827         if (retval)
2828                 return retval;
2829
2830         count *= (1024 * 1024);
2831         count /= fs->blocksize;
2832
2833         ext2fs_numeric_progress_init(fs, &progress,
2834                                      _("Discarding device blocks: "),
2835                                      blocks);
2836         while (cur < blocks) {
2837                 ext2fs_numeric_progress_update(fs, &progress, cur);
2838
2839                 if (cur + count > blocks)
2840                         count = blocks - cur;
2841
2842                 retval = io_channel_discard(fs->io, cur, count);
2843                 if (retval)
2844                         break;
2845                 cur += count;
2846         }
2847
2848         if (retval) {
2849                 ext2fs_numeric_progress_close(fs, &progress,
2850                                       _("failed - "));
2851                 if (!quiet)
2852                         printf("%s\n",error_message(retval));
2853         } else
2854                 ext2fs_numeric_progress_close(fs, &progress,
2855                                       _("done                            \n"));
2856
2857         return retval;
2858 }
2859
2860 static void fix_cluster_bg_counts(ext2_filsys fs)
2861 {
2862         blk64_t         block, num_blocks, last_block, next;
2863         blk64_t         tot_free = 0;
2864         errcode_t       retval;
2865         dgrp_t          group = 0;
2866         int             grp_free = 0;
2867
2868         num_blocks = ext2fs_blocks_count(fs->super);
2869         last_block = ext2fs_group_last_block2(fs, group);
2870         block = fs->super->s_first_data_block;
2871         while (block < num_blocks) {
2872                 retval = ext2fs_find_first_zero_block_bitmap2(fs->block_map,
2873                                                 block, last_block, &next);
2874                 if (retval == 0)
2875                         block = next;
2876                 else {
2877                         block = last_block + 1;
2878                         goto next_bg;
2879                 }
2880
2881                 retval = ext2fs_find_first_set_block_bitmap2(fs->block_map,
2882                                                 block, last_block, &next);
2883                 if (retval)
2884                         next = last_block + 1;
2885                 grp_free += EXT2FS_NUM_B2C(fs, next - block);
2886                 tot_free += next - block;
2887                 block = next;
2888
2889                 if (block > last_block) {
2890                 next_bg:
2891                         ext2fs_bg_free_blocks_count_set(fs, group, grp_free);
2892                         ext2fs_group_desc_csum_set(fs, group);
2893                         grp_free = 0;
2894                         group++;
2895                         last_block = ext2fs_group_last_block2(fs, group);
2896                 }
2897         }
2898         ext2fs_free_blocks_count_set(fs->super, tot_free);
2899 }
2900
2901 static int create_quota_inodes(ext2_filsys fs)
2902 {
2903         quota_ctx_t qctx;
2904         errcode_t retval;
2905
2906         retval = quota_init_context(&qctx, fs, quotatype_bits);
2907         if (retval) {
2908                 com_err(program_name, retval,
2909                         _("while initializing quota context"));
2910                 exit(1);
2911         }
2912         quota_compute_usage(qctx);
2913         retval = quota_write_inode(qctx, quotatype_bits);
2914         if (retval) {
2915                 com_err(program_name, retval,
2916                         _("while writing quota inodes"));
2917                 exit(1);
2918         }
2919         quota_release_context(&qctx);
2920
2921         return 0;
2922 }
2923
2924 static errcode_t set_error_behavior(ext2_filsys fs)
2925 {
2926         char    *arg = NULL;
2927         short   errors = fs->super->s_errors;
2928
2929         arg = get_string_from_profile(fs_types, "errors", NULL);
2930         if (arg == NULL)
2931                 goto try_user;
2932
2933         if (strcmp(arg, "continue") == 0)
2934                 errors = EXT2_ERRORS_CONTINUE;
2935         else if (strcmp(arg, "remount-ro") == 0)
2936                 errors = EXT2_ERRORS_RO;
2937         else if (strcmp(arg, "panic") == 0)
2938                 errors = EXT2_ERRORS_PANIC;
2939         else {
2940                 com_err(program_name, 0,
2941                         _("bad error behavior in profile - %s"),
2942                         arg);
2943                 free(arg);
2944                 return EXT2_ET_INVALID_ARGUMENT;
2945         }
2946         free(arg);
2947
2948 try_user:
2949         if (errors_behavior)
2950                 errors = errors_behavior;
2951
2952         fs->super->s_errors = errors;
2953         return 0;
2954 }
2955
2956 int main (int argc, char *argv[])
2957 {
2958         errcode_t       retval = 0;
2959         ext2_filsys     fs;
2960         badblocks_list  bb_list = 0;
2961         badblocks_iterate       bb_iter;
2962         blk_t           blk;
2963         struct ext2fs_journal_params    jparams = {0};
2964         unsigned int    i, checkinterval;
2965         int             max_mnt_count;
2966         int             val, hash_alg;
2967         int             flags;
2968         int             old_bitmaps;
2969         io_manager      io_ptr;
2970         char            opt_string[40];
2971         char            *hash_alg_str;
2972         int             itable_zeroed = 0;
2973         blk64_t         overhead;
2974
2975 #ifdef ENABLE_NLS
2976         setlocale(LC_MESSAGES, "");
2977         setlocale(LC_CTYPE, "");
2978         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
2979         textdomain(NLS_CAT_NAME);
2980         set_com_err_gettext(gettext);
2981 #endif
2982         PRS(argc, argv);
2983
2984 #ifdef CONFIG_TESTIO_DEBUG
2985         if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
2986                 io_ptr = test_io_manager;
2987                 test_io_backing_manager = unix_io_manager;
2988         } else
2989 #endif
2990                 io_ptr = unix_io_manager;
2991
2992         if (undo_file != NULL || should_do_undo(device_name)) {
2993                 retval = mke2fs_setup_tdb(device_name, &io_ptr);
2994                 if (retval)
2995                         exit(1);
2996         }
2997
2998         /*
2999          * Initialize the superblock....
3000          */
3001         flags = EXT2_FLAG_EXCLUSIVE;
3002         if (direct_io)
3003                 flags |= EXT2_FLAG_DIRECT_IO;
3004         profile_get_boolean(profile, "options", "old_bitmaps", 0, 0,
3005                             &old_bitmaps);
3006         if (!old_bitmaps)
3007                 flags |= EXT2_FLAG_64BITS;
3008         /*
3009          * By default, we print how many inode tables or block groups
3010          * or whatever we've written so far.  The quiet flag disables
3011          * this, along with a lot of other output.
3012          */
3013         if (!quiet)
3014                 flags |= EXT2_FLAG_PRINT_PROGRESS;
3015         if (android_sparse_file) {
3016                 char *android_sparse_params = malloc(strlen(device_name) + 48);
3017
3018                 if (!android_sparse_params) {
3019                         com_err(program_name, ENOMEM, "%s",
3020                                 _("in malloc for android_sparse_params"));
3021                         exit(1);
3022                 }
3023                 sprintf(android_sparse_params, "(%s):%u:%u",
3024                          device_name, fs_param.s_blocks_count,
3025                          1024 << fs_param.s_log_block_size);
3026                 retval = ext2fs_initialize(android_sparse_params, flags,
3027                                            &fs_param, sparse_io_manager, &fs);
3028                 free(android_sparse_params);
3029         } else
3030                 retval = ext2fs_initialize(device_name, flags, &fs_param,
3031                                            io_ptr, &fs);
3032         if (retval) {
3033                 com_err(device_name, retval, "%s",
3034                         _("while setting up superblock"));
3035                 exit(1);
3036         }
3037         fs->progress_ops = &ext2fs_numeric_progress_ops;
3038
3039         /* Set the error behavior */
3040         retval = set_error_behavior(fs);
3041         if (retval)
3042                 usage();
3043
3044         /* Check the user's mkfs options for metadata checksumming */
3045         if (!quiet &&
3046             !ext2fs_has_feature_journal_dev(fs->super) &&
3047             ext2fs_has_feature_metadata_csum(fs->super)) {
3048                 if (!ext2fs_has_feature_extents(fs->super))
3049                         printf("%s",
3050                                _("Extents are not enabled.  The file extent "
3051                                  "tree can be checksummed, whereas block maps "
3052                                  "cannot.  Not enabling extents reduces the "
3053                                  "coverage of metadata checksumming.  "
3054                                  "Pass -O extents to rectify.\n"));
3055                 if (!ext2fs_has_feature_64bit(fs->super))
3056                         printf("%s",
3057                                _("64-bit filesystem support is not enabled.  "
3058                                  "The larger fields afforded by this feature "
3059                                  "enable full-strength checksumming.  "
3060                                  "Pass -O 64bit to rectify.\n"));
3061         }
3062
3063         if (ext2fs_has_feature_csum_seed(fs->super) &&
3064             !ext2fs_has_feature_metadata_csum(fs->super)) {
3065                 printf("%s", _("The metadata_csum_seed feature "
3066                                "requires the metadata_csum feature.\n"));
3067                 exit(1);
3068         }
3069
3070         /* Calculate journal blocks */
3071         if (!journal_device && ((journal_size) ||
3072             ext2fs_has_feature_journal(&fs_param)))
3073                 figure_journal_size(&jparams, journal_size, journal_fc_size, fs);
3074
3075         sprintf(opt_string, "tdb_data_size=%d", fs->blocksize <= 4096 ?
3076                 32768 : fs->blocksize * 8);
3077         io_channel_set_options(fs->io, opt_string);
3078         if (offset) {
3079                 sprintf(opt_string, "offset=%llu", (unsigned long long) offset);
3080                 io_channel_set_options(fs->io, opt_string);
3081         }
3082
3083         /* Can't undo discard ... */
3084         if (!noaction && discard && dev_size && (io_ptr != undo_io_manager)) {
3085                 retval = mke2fs_discard_device(fs);
3086                 if (!retval && io_channel_discard_zeroes_data(fs->io)) {
3087                         if (verbose)
3088                                 printf("%s",
3089                                        _("Discard succeeded and will return "
3090                                          "0s - skipping inode table wipe\n"));
3091                         lazy_itable_init = 1;
3092                         itable_zeroed = 1;
3093                         zero_hugefile = 0;
3094                 }
3095         }
3096
3097         if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS)
3098                 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
3099
3100         if (ext2fs_has_feature_flex_bg(&fs_param) ||
3101             ext2fs_has_feature_huge_file(&fs_param) ||
3102             ext2fs_has_feature_gdt_csum(&fs_param) ||
3103             ext2fs_has_feature_dir_nlink(&fs_param) ||
3104             ext2fs_has_feature_metadata_csum(&fs_param) ||
3105             ext2fs_has_feature_extra_isize(&fs_param))
3106                 fs->super->s_kbytes_written = 1;
3107
3108         /*
3109          * Wipe out the old on-disk superblock
3110          */
3111         if (!noaction)
3112                 zap_sector(fs, 2, 6);
3113
3114         /*
3115          * Parse or generate a UUID for the filesystem
3116          */
3117         if (fs_uuid) {
3118                 if ((strcasecmp(fs_uuid, "null") == 0) ||
3119                     (strcasecmp(fs_uuid, "clear") == 0)) {
3120                         uuid_clear(fs->super->s_uuid);
3121                 } else if (strcasecmp(fs_uuid, "time") == 0) {
3122                         uuid_generate_time(fs->super->s_uuid);
3123                 } else if (strcasecmp(fs_uuid, "random") == 0) {
3124                         uuid_generate(fs->super->s_uuid);
3125                 } else if (uuid_parse(fs_uuid, fs->super->s_uuid) != 0) {
3126                         com_err(device_name, 0, "could not parse UUID: %s\n",
3127                                 fs_uuid);
3128                         exit(1);
3129                 }
3130         } else
3131                 uuid_generate(fs->super->s_uuid);
3132
3133         if (ext2fs_has_feature_csum_seed(fs->super))
3134                 fs->super->s_checksum_seed = ext2fs_crc32c_le(~0,
3135                                 fs->super->s_uuid, sizeof(fs->super->s_uuid));
3136
3137         ext2fs_init_csum_seed(fs);
3138
3139         /*
3140          * Initialize the directory index variables
3141          */
3142         hash_alg_str = get_string_from_profile(fs_types, "hash_alg",
3143                                                "half_md4");
3144         hash_alg = e2p_string2hash(hash_alg_str);
3145         free(hash_alg_str);
3146         fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg :
3147                 EXT2_HASH_HALF_MD4;
3148
3149         if (memcmp(fs_param.s_hash_seed, zero_buf,
3150                 sizeof(fs_param.s_hash_seed)) != 0) {
3151                 memcpy(fs->super->s_hash_seed, fs_param.s_hash_seed,
3152                         sizeof(fs->super->s_hash_seed));
3153         } else
3154                 uuid_generate((unsigned char *) fs->super->s_hash_seed);
3155
3156         /*
3157          * Periodic checks can be enabled/disabled via config file.
3158          * Note we override the kernel include file's idea of what the default
3159          * check interval (never) should be.  It's a good idea to check at
3160          * least *occasionally*, specially since servers will never rarely get
3161          * to reboot, since Linux is so robust these days.  :-)
3162          *
3163          * 180 days (six months) seems like a good value.
3164          */
3165 #ifdef EXT2_DFL_CHECKINTERVAL
3166 #undef EXT2_DFL_CHECKINTERVAL
3167 #endif
3168 #define EXT2_DFL_CHECKINTERVAL (86400L * 180L)
3169
3170         if (get_bool_from_profile(fs_types, "enable_periodic_fsck", 0)) {
3171                 fs->super->s_checkinterval = EXT2_DFL_CHECKINTERVAL;
3172                 fs->super->s_max_mnt_count = EXT2_DFL_MAX_MNT_COUNT;
3173                 /*
3174                  * Add "jitter" to the superblock's check interval so that we
3175                  * don't check all the filesystems at the same time.  We use a
3176                  * kludgy hack of using the UUID to derive a random jitter value
3177                  */
3178                 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++)
3179                         val += fs->super->s_uuid[i];
3180                 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
3181         } else
3182                 fs->super->s_max_mnt_count = -1;
3183
3184         /*
3185          * Override the creator OS, if applicable
3186          */
3187         if (creator_os && !set_os(fs->super, creator_os)) {
3188                 com_err (program_name, 0, _("unknown os - %s"), creator_os);
3189                 exit(1);
3190         }
3191
3192         /*
3193          * For the Hurd, we will turn off filetype since it doesn't
3194          * support it.
3195          */
3196         if (fs->super->s_creator_os == EXT2_OS_HURD)
3197                 ext2fs_clear_feature_filetype(fs->super);
3198
3199         /*
3200          * Set the volume label...
3201          */
3202         if (volume_label) {
3203                 memset(fs->super->s_volume_name, 0,
3204                        sizeof(fs->super->s_volume_name));
3205                 strncpy((char *) fs->super->s_volume_name, volume_label,
3206                         sizeof(fs->super->s_volume_name));
3207         }
3208
3209         /*
3210          * Set the last mount directory
3211          */
3212         if (mount_dir) {
3213                 memset(fs->super->s_last_mounted, 0,
3214                        sizeof(fs->super->s_last_mounted));
3215                 strncpy((char *) fs->super->s_last_mounted, mount_dir,
3216                         sizeof(fs->super->s_last_mounted));
3217         }
3218
3219         /* Set current default encryption algorithms for data and
3220          * filename encryption */
3221         if (ext2fs_has_feature_encrypt(fs->super)) {
3222                 fs->super->s_encrypt_algos[0] =
3223                         EXT4_ENCRYPTION_MODE_AES_256_XTS;
3224                 fs->super->s_encrypt_algos[1] =
3225                         EXT4_ENCRYPTION_MODE_AES_256_CTS;
3226         }
3227
3228         if (ext2fs_has_feature_metadata_csum(fs->super))
3229                 fs->super->s_checksum_type = EXT2_CRC32C_CHKSUM;
3230
3231         if (!quiet || noaction)
3232                 show_stats(fs);
3233
3234         if (noaction)
3235                 exit(0);
3236
3237         if (ext2fs_has_feature_journal_dev(fs->super)) {
3238                 create_journal_dev(fs);
3239                 printf("\n");
3240                 exit(ext2fs_close_free(&fs) ? 1 : 0);
3241         }
3242
3243         if (bad_blocks_filename)
3244                 read_bb_file(fs, &bb_list, bad_blocks_filename);
3245         if (cflag)
3246                 test_disk(fs, &bb_list);
3247         handle_bad_blocks(fs, bb_list);
3248
3249         fs->stride = fs_stride = fs->super->s_raid_stride;
3250         if (!quiet)
3251                 printf("%s", _("Allocating group tables: "));
3252         if (ext2fs_has_feature_flex_bg(fs->super) &&
3253             packed_meta_blocks)
3254                 retval = packed_allocate_tables(fs);
3255         else
3256                 retval = ext2fs_allocate_tables(fs);
3257         if (retval) {
3258                 com_err(program_name, retval, "%s",
3259                         _("while trying to allocate filesystem tables"));
3260                 exit(1);
3261         }
3262         if (!quiet)
3263                 printf("%s", _("done                            \n"));
3264
3265         /*
3266          * Unmark bad blocks to calculate overhead, because metadata
3267          * blocks and bad blocks can land on the same allocation cluster.
3268          */
3269         if (bb_list) {
3270                 retval = ext2fs_badblocks_list_iterate_begin(bb_list,
3271                                                              &bb_iter);
3272                 if (retval) {
3273                         com_err("ext2fs_badblocks_list_iterate_begin", retval,
3274                                 "%s", _("while unmarking bad blocks"));
3275                         exit(1);
3276                 }
3277                 while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
3278                         ext2fs_unmark_block_bitmap2(fs->block_map, blk);
3279                 ext2fs_badblocks_list_iterate_end(bb_iter);
3280         }
3281
3282         retval = ext2fs_convert_subcluster_bitmap(fs, &fs->block_map);
3283         if (retval) {
3284                 com_err(program_name, retval, "%s",
3285                         _("\n\twhile converting subcluster bitmap"));
3286                 exit(1);
3287         }
3288
3289         retval = ext2fs_count_used_clusters(fs, fs->super->s_first_data_block,
3290                                         ext2fs_blocks_count(fs->super) - 1,
3291                                         &overhead);
3292         if (retval) {
3293                 com_err(program_name, retval, "%s",
3294                         _("while calculating overhead"));
3295                 exit(1);
3296         }
3297
3298         if (bb_list) {
3299                 retval = ext2fs_badblocks_list_iterate_begin(bb_list,
3300                                                              &bb_iter);
3301                 if (retval) {
3302                         com_err("ext2fs_badblocks_list_iterate_begin", retval,
3303                                 "%s", _("while marking bad blocks as used"));
3304                         exit(1);
3305                 }
3306                 while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
3307                         ext2fs_mark_block_bitmap2(fs->block_map, blk);
3308                 ext2fs_badblocks_list_iterate_end(bb_iter);
3309         }
3310
3311         if (super_only) {
3312                 check_plausibility(device_name, CHECK_FS_EXIST, NULL);
3313                 printf(_("%s may be further corrupted by superblock rewrite\n"),
3314                        device_name);
3315                 if (!force)
3316                         proceed_question(proceed_delay);
3317                 fs->super->s_state |= EXT2_ERROR_FS;
3318                 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
3319                 /*
3320                  * The command "mke2fs -S" is used to recover
3321                  * corrupted file systems, so do not mark any of the
3322                  * inodes as unused; we want e2fsck to consider all
3323                  * inodes as potentially containing recoverable data.
3324                  */
3325                 if (ext2fs_has_group_desc_csum(fs)) {
3326                         for (i = 0; i < fs->group_desc_count; i++)
3327                                 ext2fs_bg_itable_unused_set(fs, i, 0);
3328                 }
3329         } else {
3330                 /* rsv must be a power of two (64kB is MD RAID sb alignment) */
3331                 blk64_t rsv = 65536 / fs->blocksize;
3332                 blk64_t blocks = ext2fs_blocks_count(fs->super);
3333                 blk64_t start;
3334                 blk64_t ret_blk;
3335
3336 #ifdef ZAP_BOOTBLOCK
3337                 zap_sector(fs, 0, 2);
3338 #endif
3339
3340                 /*
3341                  * Wipe out any old MD RAID (or other) metadata at the end
3342                  * of the device.  This will also verify that the device is
3343                  * as large as we think.  Be careful with very small devices.
3344                  */
3345                 start = (blocks & ~(rsv - 1));
3346                 if (start > rsv)
3347                         start -= rsv;
3348                 if (start > 0)
3349                         retval = ext2fs_zero_blocks2(fs, start, blocks - start,
3350                                                     &ret_blk, NULL);
3351
3352                 if (retval) {
3353                         com_err(program_name, retval,
3354                                 _("while zeroing block %llu at end of filesystem"),
3355                                 (unsigned long long) ret_blk);
3356                 }
3357                 write_inode_tables(fs, lazy_itable_init, itable_zeroed);
3358                 create_root_dir(fs);
3359                 create_lost_and_found(fs);
3360                 reserve_inodes(fs);
3361                 create_bad_block_inode(fs, bb_list);
3362                 if (ext2fs_has_feature_resize_inode(fs->super)) {
3363                         retval = ext2fs_create_resize_inode(fs);
3364                         if (retval) {
3365                                 com_err("ext2fs_create_resize_inode", retval,
3366                                         "%s",
3367                                 _("while reserving blocks for online resize"));
3368                                 exit(1);
3369                         }
3370                 }
3371         }
3372
3373         if (journal_device) {
3374                 ext2_filsys     jfs;
3375
3376                 if (!check_plausibility(journal_device, CHECK_BLOCK_DEV,
3377                                         NULL) && !force)
3378                         proceed_question(proceed_delay);
3379                 check_mount(journal_device, force, _("journal"));
3380
3381                 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
3382                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
3383                                      fs->blocksize, unix_io_manager, &jfs);
3384                 if (retval) {
3385                         com_err(program_name, retval,
3386                                 _("while trying to open journal device %s\n"),
3387                                 journal_device);
3388                         exit(1);
3389                 }
3390                 if (!quiet) {
3391                         printf(_("Adding journal to device %s: "),
3392                                journal_device);
3393                         fflush(stdout);
3394                 }
3395                 retval = ext2fs_add_journal_device(fs, jfs);
3396                 if(retval) {
3397                         com_err (program_name, retval,
3398                                  _("\n\twhile trying to add journal to device %s"),
3399                                  journal_device);
3400                         exit(1);
3401                 }
3402                 if (!quiet)
3403                         printf("%s", _("done\n"));
3404                 ext2fs_close_free(&jfs);
3405                 free(journal_device);
3406         } else if ((journal_size) ||
3407                    ext2fs_has_feature_journal(&fs_param)) {
3408                 overhead += EXT2FS_NUM_B2C(fs, jparams.num_journal_blocks + jparams.num_fc_blocks);
3409                 if (super_only) {
3410                         printf("%s", _("Skipping journal creation in super-only mode\n"));
3411                         fs->super->s_journal_inum = EXT2_JOURNAL_INO;
3412                         goto no_journal;
3413                 }
3414
3415                 if (!jparams.num_journal_blocks) {
3416                         ext2fs_clear_feature_journal(fs->super);
3417                         goto no_journal;
3418                 }
3419                 if (!quiet) {
3420                         printf(_("Creating journal (%u blocks): "),
3421                                jparams.num_journal_blocks + jparams.num_fc_blocks);
3422                         fflush(stdout);
3423                 }
3424                 retval = ext2fs_add_journal_inode3(fs, &jparams,
3425                                                    journal_location,
3426                                                    journal_flags);
3427                 if (retval) {
3428                         com_err(program_name, retval, "%s",
3429                                 _("\n\twhile trying to create journal"));
3430                         exit(1);
3431                 }
3432                 if (!quiet)
3433                         printf("%s", _("done\n"));
3434         }
3435 no_journal:
3436         if (!super_only &&
3437             ext2fs_has_feature_mmp(fs->super)) {
3438                 retval = ext2fs_mmp_init(fs);
3439                 if (retval) {
3440                         fprintf(stderr, "%s",
3441                                 _("\nError while enabling multiple "
3442                                   "mount protection feature."));
3443                         exit(1);
3444                 }
3445                 if (!quiet)
3446                         printf(_("Multiple mount protection is enabled "
3447                                  "with update interval %d seconds.\n"),
3448                                fs->super->s_mmp_update_interval);
3449         }
3450
3451         overhead += fs->super->s_first_data_block;
3452         if (!super_only)
3453                 fs->super->s_overhead_clusters = overhead;
3454
3455         if (ext2fs_has_feature_bigalloc(&fs_param))
3456                 fix_cluster_bg_counts(fs);
3457         if (ext2fs_has_feature_quota(&fs_param))
3458                 create_quota_inodes(fs);
3459
3460         retval = mk_hugefiles(fs, device_name);
3461         if (retval)
3462                 com_err(program_name, retval, "while creating huge files");
3463         /* Copy files from the specified directory */
3464         if (src_root_dir) {
3465                 if (!quiet)
3466                         printf("%s", _("Copying files into the device: "));
3467
3468                 retval = populate_fs(fs, EXT2_ROOT_INO, src_root_dir,
3469                                      EXT2_ROOT_INO);
3470                 if (retval) {
3471                         com_err(program_name, retval, "%s",
3472                                 _("while populating file system"));
3473                         exit(1);
3474                 } else if (!quiet)
3475                         printf("%s", _("done\n"));
3476         }
3477
3478         if (!quiet)
3479                 printf("%s", _("Writing superblocks and "
3480                        "filesystem accounting information: "));
3481         checkinterval = fs->super->s_checkinterval;
3482         max_mnt_count = fs->super->s_max_mnt_count;
3483         retval = ext2fs_close_free(&fs);
3484         if (retval) {
3485                 com_err(program_name, retval, "%s",
3486                         _("while writing out and closing file system"));
3487                 retval = 1;
3488         } else if (!quiet) {
3489                 printf("%s", _("done\n\n"));
3490                 if (!getenv("MKE2FS_SKIP_CHECK_MSG"))
3491                         print_check_message(max_mnt_count, checkinterval);
3492         }
3493
3494         remove_error_table(&et_ext2_error_table);
3495         remove_error_table(&et_prof_error_table);
3496         profile_release(profile);
3497         for (i=0; fs_types[i]; i++)
3498                 free(fs_types[i]);
3499         free(fs_types);
3500         return retval;
3501 }