misc/mke2fs.c

   1 /*
   2  * mke2fs.c - Make a ext2fs filesystem.
   3  *
   4  * Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
   5  *      2003, 2004, 2005 by Theodore Ts'o.
   6  *
   7  * %Begin-Header%
   8  * This file may be redistributed under the terms of the GNU Public
   9  * License.
  10  * %End-Header%
  11  */
  12
  13 /* Usage: mke2fs [options] device
  14  *
  15  * The device may be a block device or a image of one, but this isn't
  16  * enforced (but it's not much fun on a character device :-).
  17  */
  18
  19 #define _XOPEN_SOURCE 600
  20
  21 #include "config.h"
  22 #include <stdio.h>
  23 #include <string.h>
  24 #include <strings.h>
  25 #include <ctype.h>
  26 #include <time.h>
  27 #ifdef __linux__
  28 #include <sys/utsname.h>
  29 #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
  30 #endif
  31 #ifdef HAVE_GETOPT_H
  32 #include <getopt.h>
  33 #else
  34 extern char *optarg;
  35 extern int optind;
  36 #endif
  37 #ifdef HAVE_UNISTD_H
  38 #include <unistd.h>
  39 #endif
  40 #ifdef HAVE_STDLIB_H
  41 #include <stdlib.h>
  42 #endif
  43 #ifdef HAVE_ERRNO_H
  44 #include <errno.h>
  45 #endif
  46 #ifdef HAVE_SYS_IOCTL_H
  47 #include <sys/ioctl.h>
  48 #endif
  49 #include <libgen.h>
  50 #include <limits.h>
  51 #include <blkid/blkid.h>
  52
  53 #include "ext2fs/ext2_fs.h"
  54 #include "ext2fs/ext2fsP.h"
  55 #include "uuid/uuid.h"
  56 #include "util.h"
  57 #include "support/nls-enable.h"
  58 #include "support/plausible.h"
  59 #include "support/profile.h"
  60 #include "support/prof_err.h"
  61 #include "../version.h"
  62 #include "support/quotaio.h"
  63 #include "mke2fs.h"
  64 #include "create_inode.h"
  65
  66 #define STRIDE_LENGTH 8
  67
  68 #define MAX_32_NUM ((((unsigned long long) 1) << 32) - 1)
  69
  70 #ifndef __sparc__
  71 #define ZAP_BOOTBLOCK
  72 #endif
  73
  74 #define DISCARD_STEP_MB         (2048)
  75
  76 extern int isatty(int);
  77 extern FILE *fpopen(const char *cmd, const char *mode);
  78
  79 const char * program_name = "mke2fs";
  80 static const char * device_name /* = NULL */;
  81
  82 /* Command line options */
  83 static int      cflag;
  84 int     verbose;
  85 int     quiet;
  86 static int      super_only;
  87 static int      discard = 1;    /* attempt to discard device before fs creation */
  88 static int      direct_io;
  89 static int      force;
  90 static int      noaction;
  91 static int      num_backups = 2; /* number of backup bg's for sparse_super2 */
  92 static uid_t    root_uid;
  93 static gid_t    root_gid;
  94 int     journal_size;
  95 int     journal_flags;
  96 int     journal_fc_size;
  97 static e2_blkcnt_t      orphan_file_blocks;
  98 static int      lazy_itable_init;
  99 static int      assume_storage_prezeroed;
 100 static int      packed_meta_blocks;
 101 int             no_copy_xattrs;
 102 static char     *bad_blocks_filename = NULL;
 103 static __u32    fs_stride;
 104 /* Initialize usr/grp quotas by default */
 105 static unsigned int quotatype_bits = (QUOTA_USR_BIT | QUOTA_GRP_BIT);
 106 static __u64    offset;
 107 static blk64_t journal_location = ~0LL;
 108 static int      proceed_delay = -1;
 109 static blk64_t  dev_size;
 110
 111 static struct ext2_super_block fs_param;
 112 static __u32 zero_buf[4];
 113 static char *fs_uuid = NULL;
 114 static char *creator_os;
 115 static char *volume_label;
 116 static char *mount_dir;
 117 char *journal_device;
 118 static int sync_kludge; /* Set using the MKE2FS_SYNC env. option */
 119 char **fs_types;
 120 const char *src_root_dir;  /* Copy files from the specified directory */
 121 static char *undo_file;
 122
 123 static int android_sparse_file; /* -E android_sparse */
 124
 125 static profile_t        profile;
 126
 127 static int sys_page_size = 4096;
 128
 129 static int errors_behavior = 0;
 130
 131 static void usage(void)
 132 {
 133         fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] "
 134         "[-C cluster-size]\n\t[-i bytes-per-inode] [-I inode-size] "
 135         "[-J journal-options]\n"
 136         "\t[-G flex-group-size] [-N number-of-inodes] "
 137         "[-d root-directory]\n"
 138         "\t[-m reserved-blocks-percentage] [-o creator-os]\n"
 139         "\t[-g blocks-per-group] [-L volume-label] "
 140         "[-M last-mounted-directory]\n\t[-O feature[,...]] "
 141         "[-r fs-revision] [-E extended-option[,...]]\n"
 142         "\t[-t fs-type] [-T usage-type ] [-U UUID] [-e errors_behavior]"
 143         "[-z undo_file]\n"
 144         "\t[-jnqvDFSV] device [blocks-count]\n"),
 145                 program_name);
 146         exit(1);
 147 }
 148
 149 static int int_log2(unsigned long long arg)
 150 {
 151         int     l = 0;
 152
 153         arg >>= 1;
 154         while (arg) {
 155                 l++;
 156                 arg >>= 1;
 157         }
 158         return l;
 159 }
 160
 161 int int_log10(unsigned long long arg)
 162 {
 163         int     l;
 164
 165         for (l=0; arg ; l++)
 166                 arg = arg / 10;
 167         return l;
 168 }
 169
 170 #ifdef __linux__
 171 static int parse_version_number(const char *s)
 172 {
 173         int     major, minor, rev;
 174         char    *endptr;
 175         const char *cp = s;
 176
 177         if (!s)
 178                 return 0;
 179         major = strtol(cp, &endptr, 10);
 180         if (cp == endptr || *endptr != '.')
 181                 return 0;
 182         cp = endptr + 1;
 183         minor = strtol(cp, &endptr, 10);
 184         if (cp == endptr || *endptr != '.')
 185                 return 0;
 186         cp = endptr + 1;
 187         rev = strtol(cp, &endptr, 10);
 188         if (cp == endptr)
 189                 return 0;
 190         return KERNEL_VERSION(major, minor, rev);
 191 }
 192
 193 static int is_before_linux_ver(unsigned int major, unsigned int minor,
 194                                unsigned int rev)
 195 {
 196         struct          utsname ut;
 197         static int      linux_version_code = -1;
 198
 199         if (uname(&ut)) {
 200                 perror("uname");
 201                 exit(1);
 202         }
 203         if (linux_version_code < 0)
 204                 linux_version_code = parse_version_number(ut.release);
 205         if (linux_version_code == 0)
 206                 return 0;
 207
 208         return linux_version_code < (int) KERNEL_VERSION(major, minor, rev);
 209 }
 210 #else
 211 static int is_before_linux_ver(unsigned int major, unsigned int minor,
 212                                unsigned int rev)
 213 {
 214         return 0;
 215 }
 216 #endif
 217
 218 /*
 219  * Helper function for read_bb_file and test_disk
 220  */
 221 static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk)
 222 {
 223         fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk);
 224         return;
 225 }
 226
 227 /*
 228  * Reads the bad blocks list from a file
 229  */
 230 static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list,
 231                          const char *bad_blocks_file)
 232 {
 233         FILE            *f;
 234         errcode_t       retval;
 235
 236         f = fopen(bad_blocks_file, "r");
 237         if (!f) {
 238                 com_err("read_bad_blocks_file", errno,
 239                         _("while trying to open %s"), bad_blocks_file);
 240                 exit(1);
 241         }
 242         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
 243         fclose (f);
 244         if (retval) {
 245                 com_err("ext2fs_read_bb_FILE", retval, "%s",
 246                         _("while reading in list of bad blocks from file"));
 247                 exit(1);
 248         }
 249 }
 250
 251 /*
 252  * Runs the badblocks program to test the disk
 253  */
 254 static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
 255 {
 256         FILE            *f;
 257         errcode_t       retval;
 258         char            buf[1024];
 259
 260         sprintf(buf, "badblocks -b %d -X %s%s%s %llu", fs->blocksize,
 261                 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "",
 262                 fs->device_name,
 263                 (unsigned long long) ext2fs_blocks_count(fs->super)-1);
 264         if (verbose)
 265                 printf(_("Running command: %s\n"), buf);
 266         f = popen(buf, "r");
 267         if (!f) {
 268                 com_err("popen", errno,
 269                         _("while trying to run '%s'"), buf);
 270                 exit(1);
 271         }
 272         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
 273         pclose(f);
 274         if (retval) {
 275                 com_err("ext2fs_read_bb_FILE", retval, "%s",
 276                         _("while processing list of bad blocks from program"));
 277                 exit(1);
 278         }
 279 }
 280
 281 static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
 282 {
 283         dgrp_t                  i;
 284         blk_t                   j;
 285         unsigned                must_be_good;
 286         blk_t                   blk;
 287         badblocks_iterate       bb_iter;
 288         errcode_t               retval;
 289         blk_t                   group_block;
 290         int                     group;
 291         int                     group_bad;
 292
 293         if (!bb_list)
 294                 return;
 295
 296         /*
 297          * The primary superblock and group descriptors *must* be
 298          * good; if not, abort.
 299          */
 300         must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
 301         for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
 302                 if (ext2fs_badblocks_list_test(bb_list, i)) {
 303                         fprintf(stderr, _("Block %d in primary "
 304                                 "superblock/group descriptor area bad.\n"), i);
 305                         fprintf(stderr, _("Blocks %u through %u must be good "
 306                                 "in order to build a filesystem.\n"),
 307                                 fs->super->s_first_data_block, must_be_good);
 308                         fputs(_("Aborting....\n"), stderr);
 309                         exit(1);
 310                 }
 311         }
 312
 313         /*
 314          * See if any of the bad blocks are showing up in the backup
 315          * superblocks and/or group descriptors.  If so, issue a
 316          * warning and adjust the block counts appropriately.
 317          */
 318         group_block = fs->super->s_first_data_block +
 319                 fs->super->s_blocks_per_group;
 320
 321         for (i = 1; i < fs->group_desc_count; i++) {
 322                 group_bad = 0;
 323                 for (j=0; j < fs->desc_blocks+1; j++) {
 324                         if (ext2fs_badblocks_list_test(bb_list,
 325                                                        group_block + j)) {
 326                                 if (!group_bad)
 327                                         fprintf(stderr,
 328 _("Warning: the backup superblock/group descriptors at block %u contain\n"
 329 "       bad blocks.\n\n"),
 330                                                 group_block);
 331                                 group_bad++;
 332                                 group = ext2fs_group_of_blk2(fs, group_block+j);
 333                                 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
 334                                 ext2fs_group_desc_csum_set(fs, group);
 335                                 ext2fs_free_blocks_count_add(fs->super, 1);
 336                         }
 337                 }
 338                 group_block += fs->super->s_blocks_per_group;
 339         }
 340
 341         /*
 342          * Mark all the bad blocks as used...
 343          */
 344         retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
 345         if (retval) {
 346                 com_err("ext2fs_badblocks_list_iterate_begin", retval, "%s",
 347                         _("while marking bad blocks as used"));
 348                 exit(1);
 349         }
 350         while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
 351                 ext2fs_mark_block_bitmap2(fs->block_map, blk);
 352         ext2fs_badblocks_list_iterate_end(bb_iter);
 353 }
 354
 355 static void write_reserved_inodes(ext2_filsys fs)
 356 {
 357         errcode_t       retval;
 358         ext2_ino_t      ino;
 359         struct ext2_inode *inode;
 360
 361         retval = ext2fs_get_memzero(EXT2_INODE_SIZE(fs->super), &inode);
 362         if (retval) {
 363                 com_err("inode_init", retval, _("while allocating memory"));
 364                 exit(1);
 365         }
 366
 367         for (ino = 1; ino < EXT2_FIRST_INO(fs->super); ino++) {
 368                 retval = ext2fs_write_inode_full(fs, ino, inode,
 369                                                  EXT2_INODE_SIZE(fs->super));
 370                 if (retval) {
 371                         com_err("ext2fs_write_inode_full", retval,
 372                                 _("while writing reserved inodes"));
 373                         exit(1);
 374                 }
 375         }
 376
 377         ext2fs_free_mem(&inode);
 378 }
 379
 380 static errcode_t packed_allocate_tables(ext2_filsys fs)
 381 {
 382         errcode_t       retval;
 383         dgrp_t          i;
 384         blk64_t         goal = 0;
 385
 386         for (i = 0; i < fs->group_desc_count; i++) {
 387                 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
 388                 if (retval)
 389                         return retval;
 390                 ext2fs_block_alloc_stats2(fs, goal, +1);
 391                 ext2fs_block_bitmap_loc_set(fs, i, goal);
 392         }
 393         for (i = 0; i < fs->group_desc_count; i++) {
 394                 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
 395                 if (retval)
 396                         return retval;
 397                 ext2fs_block_alloc_stats2(fs, goal, +1);
 398                 ext2fs_inode_bitmap_loc_set(fs, i, goal);
 399         }
 400         for (i = 0; i < fs->group_desc_count; i++) {
 401                 blk64_t end = ext2fs_blocks_count(fs->super) - 1;
 402                 retval = ext2fs_get_free_blocks2(fs, goal, end,
 403                                                  fs->inode_blocks_per_group,
 404                                                  fs->block_map, &goal);
 405                 if (retval)
 406                         return retval;
 407                 ext2fs_block_alloc_stats_range(fs, goal,
 408                                                fs->inode_blocks_per_group, +1);
 409                 ext2fs_inode_table_loc_set(fs, i, goal);
 410                 ext2fs_group_desc_csum_set(fs, i);
 411         }
 412         return 0;
 413 }
 414
 415 static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed)
 416 {
 417         errcode_t       retval;
 418         blk64_t         blk;
 419         dgrp_t          i;
 420         int             num;
 421         struct ext2fs_numeric_progress_struct progress;
 422
 423         ext2fs_numeric_progress_init(fs, &progress,
 424                                      _("Writing inode tables: "),
 425                                      fs->group_desc_count);
 426
 427         for (i = 0; i < fs->group_desc_count; i++) {
 428                 ext2fs_numeric_progress_update(fs, &progress, i);
 429
 430                 blk = ext2fs_inode_table_loc(fs, i);
 431                 num = fs->inode_blocks_per_group;
 432
 433                 if (lazy_flag)
 434                         num = ext2fs_div_ceil((fs->super->s_inodes_per_group -
 435                                                ext2fs_bg_itable_unused(fs, i)) *
 436                                               EXT2_INODE_SIZE(fs->super),
 437                                               EXT2_BLOCK_SIZE(fs->super));
 438                 if (!lazy_flag || itable_zeroed) {
 439                         /* The kernel doesn't need to zero the itable blocks */
 440                         ext2fs_bg_flags_set(fs, i, EXT2_BG_INODE_ZEROED);
 441                         ext2fs_group_desc_csum_set(fs, i);
 442                 }
 443                 if (!itable_zeroed) {
 444                         retval = ext2fs_zero_blocks2(fs, blk, num, &blk, &num);
 445                         if (retval) {
 446                                 fprintf(stderr, _("\nCould not write %d "
 447                                           "blocks in inode table starting at %llu: %s\n"),
 448                                         num, (unsigned long long) blk,
 449                                         error_message(retval));
 450                                 exit(1);
 451                         }
 452                 }
 453                 if (sync_kludge) {
 454                         if (sync_kludge == 1)
 455                                 io_channel_flush(fs->io);
 456                         else if ((i % sync_kludge) == 0)
 457                                 io_channel_flush(fs->io);
 458                 }
 459         }
 460         ext2fs_numeric_progress_close(fs, &progress,
 461                                       _("done                            \n"));
 462
 463         /* Reserved inodes must always have correct checksums */
 464         if (ext2fs_has_feature_metadata_csum(fs->super))
 465                 write_reserved_inodes(fs);
 466 }
 467
 468 static void create_root_dir(ext2_filsys fs)
 469 {
 470         errcode_t               retval;
 471         struct ext2_inode       inode;
 472
 473         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
 474         if (retval) {
 475                 com_err("ext2fs_mkdir", retval, "%s",
 476                         _("while creating root dir"));
 477                 exit(1);
 478         }
 479         if (root_uid != 0 || root_gid != 0) {
 480                 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
 481                 if (retval) {
 482                         com_err("ext2fs_read_inode", retval, "%s",
 483                                 _("while reading root inode"));
 484                         exit(1);
 485                 }
 486
 487                 inode.i_uid = root_uid;
 488                 ext2fs_set_i_uid_high(inode, root_uid >> 16);
 489                 inode.i_gid = root_gid;
 490                 ext2fs_set_i_gid_high(inode, root_gid >> 16);
 491
 492                 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
 493                 if (retval) {
 494                         com_err("ext2fs_write_inode", retval, "%s",
 495                                 _("while setting root inode ownership"));
 496                         exit(1);
 497                 }
 498         }
 499 }
 500
 501 static void create_lost_and_found(ext2_filsys fs)
 502 {
 503         unsigned int            lpf_size = 0;
 504         errcode_t               retval;
 505         ext2_ino_t              ino;
 506         const char              *name = "lost+found";
 507         int                     i;
 508
 509         fs->umask = 077;
 510         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
 511         if (retval) {
 512                 com_err("ext2fs_mkdir", retval, "%s",
 513                         _("while creating /lost+found"));
 514                 exit(1);
 515         }
 516
 517         retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
 518         if (retval) {
 519                 com_err("ext2_lookup", retval, "%s",
 520                         _("while looking up /lost+found"));
 521                 exit(1);
 522         }
 523
 524         for (i=1; i < EXT2_NDIR_BLOCKS; i++) {
 525                 /* Ensure that lost+found is at least 2 blocks, so we always
 526                  * test large empty blocks for big-block filesystems.  */
 527                 if ((lpf_size += fs->blocksize) >= 16*1024 &&
 528                     lpf_size >= 2 * fs->blocksize)
 529                         break;
 530                 retval = ext2fs_expand_dir(fs, ino);
 531                 if (retval) {
 532                         com_err("ext2fs_expand_dir", retval, "%s",
 533                                 _("while expanding /lost+found"));
 534                         exit(1);
 535                 }
 536         }
 537 }
 538
 539 static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
 540 {
 541         errcode_t       retval;
 542
 543         ext2fs_mark_inode_bitmap2(fs->inode_map, EXT2_BAD_INO);
 544         ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0);
 545         retval = ext2fs_update_bb_inode(fs, bb_list);
 546         if (retval) {
 547                 com_err("ext2fs_update_bb_inode", retval, "%s",
 548                         _("while setting bad block inode"));
 549                 exit(1);
 550         }
 551
 552 }
 553
 554 static void reserve_inodes(ext2_filsys fs)
 555 {
 556         ext2_ino_t      i;
 557
 558         for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++)
 559                 ext2fs_inode_alloc_stats2(fs, i, +1, 0);
 560         ext2fs_mark_ib_dirty(fs);
 561 }
 562
 563 #define BSD_DISKMAGIC   (0x82564557UL)  /* The disk magic number */
 564 #define BSD_MAGICDISK   (0x57455682UL)  /* The disk magic number reversed */
 565 #define BSD_LABEL_OFFSET        64
 566
 567 static void zap_sector(ext2_filsys fs, int sect, int nsect)
 568 {
 569         char *buf;
 570         int retval;
 571         unsigned int *magic;
 572
 573         buf = calloc(512, nsect);
 574         if (!buf) {
 575                 printf(_("Out of memory erasing sectors %d-%d\n"),
 576                        sect, sect + nsect - 1);
 577                 exit(1);
 578         }
 579
 580         if (sect == 0) {
 581                 /* Check for a BSD disklabel, and don't erase it if so */
 582                 retval = io_channel_read_blk64(fs->io, 0, -512, buf);
 583                 if (retval)
 584                         fprintf(stderr,
 585                                 _("Warning: could not read block 0: %s\n"),
 586                                 error_message(retval));
 587                 else {
 588                         magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);
 589                         if ((*magic == BSD_DISKMAGIC) ||
 590                             (*magic == BSD_MAGICDISK)) {
 591                                 free(buf);
 592                                 return;
 593                         }
 594                 }
 595         }
 596
 597         memset(buf, 0, 512*nsect);
 598         io_channel_set_blksize(fs->io, 512);
 599         retval = io_channel_write_blk64(fs->io, sect, -512*nsect, buf);
 600         io_channel_set_blksize(fs->io, fs->blocksize);
 601         free(buf);
 602         if (retval)
 603                 fprintf(stderr, _("Warning: could not erase sector %d: %s\n"),
 604                         sect, error_message(retval));
 605 }
 606
 607 static void create_journal_dev(ext2_filsys fs)
 608 {
 609         struct ext2fs_numeric_progress_struct progress;
 610         errcode_t               retval;
 611         char                    *buf;
 612         blk64_t                 blk, err_blk;
 613         int                     c, count, err_count;
 614         struct ext2fs_journal_params    jparams;
 615
 616         retval = ext2fs_get_journal_params(&jparams, fs);
 617         if (retval) {
 618                 com_err("create_journal_dev", retval, "%s",
 619                         _("while splitting the journal size"));
 620                 exit(1);
 621         }
 622
 623         retval = ext2fs_create_journal_superblock2(fs, &jparams, 0, &buf);
 624         if (retval) {
 625                 com_err("create_journal_dev", retval, "%s",
 626                         _("while initializing journal superblock"));
 627                 exit(1);
 628         }
 629
 630         if (journal_flags & EXT2_MKJOURNAL_LAZYINIT)
 631                 goto write_superblock;
 632
 633         ext2fs_numeric_progress_init(fs, &progress,
 634                                      _("Zeroing journal device: "),
 635                                      ext2fs_blocks_count(fs->super));
 636         blk = 0;
 637         count = ext2fs_blocks_count(fs->super);
 638         while (count > 0) {
 639                 if (count > 1024)
 640                         c = 1024;
 641                 else
 642                         c = count;
 643                 retval = ext2fs_zero_blocks2(fs, blk, c, &err_blk, &err_count);
 644                 if (retval) {
 645                         com_err("create_journal_dev", retval,
 646                                 _("while zeroing journal device "
 647                                   "(block %llu, count %d)"),
 648                                 (unsigned long long) err_blk, err_count);
 649                         exit(1);
 650                 }
 651                 blk += c;
 652                 count -= c;
 653                 ext2fs_numeric_progress_update(fs, &progress, blk);
 654         }
 655
 656         ext2fs_numeric_progress_close(fs, &progress, NULL);
 657 write_superblock:
 658         retval = io_channel_write_blk64(fs->io,
 659                                         fs->super->s_first_data_block+1,
 660                                         1, buf);
 661         (void) ext2fs_free_mem(&buf);
 662         if (retval) {
 663                 com_err("create_journal_dev", retval, "%s",
 664                         _("while writing journal superblock"));
 665                 exit(1);
 666         }
 667 }
 668
 669 static void show_stats(ext2_filsys fs)
 670 {
 671         struct ext2_super_block *s = fs->super;
 672         char                    *os;
 673         blk64_t                 group_block;
 674         dgrp_t                  i;
 675         int                     need, col_left;
 676
 677         if (!verbose) {
 678                 printf(_("Creating filesystem with %llu %dk blocks and "
 679                          "%u inodes\n"),
 680                        (unsigned long long) ext2fs_blocks_count(s),
 681                        fs->blocksize >> 10, s->s_inodes_count);
 682                 goto skip_details;
 683         }
 684
 685         if (ext2fs_blocks_count(&fs_param) != ext2fs_blocks_count(s))
 686                 fprintf(stderr, _("warning: %llu blocks unused.\n\n"),
 687                         (unsigned long long) (ext2fs_blocks_count(&fs_param) -
 688                                               ext2fs_blocks_count(s)));
 689
 690         printf(_("Filesystem label=%.*s\n"), EXT2_LEN_STR(s->s_volume_name));
 691
 692         os = e2p_os2string(fs->super->s_creator_os);
 693         if (os)
 694                 printf(_("OS type: %s\n"), os);
 695         free(os);
 696         printf(_("Block size=%u (log=%u)\n"), fs->blocksize,
 697                 s->s_log_block_size);
 698         if (ext2fs_has_feature_bigalloc(fs->super))
 699                 printf(_("Cluster size=%u (log=%u)\n"),
 700                        fs->blocksize << fs->cluster_ratio_bits,
 701                        s->s_log_cluster_size);
 702         else
 703                 printf(_("Fragment size=%u (log=%u)\n"), EXT2_CLUSTER_SIZE(s),
 704                        s->s_log_cluster_size);
 705         printf(_("Stride=%u blocks, Stripe width=%u blocks\n"),
 706                s->s_raid_stride, s->s_raid_stripe_width);
 707         printf(_("%u inodes, %llu blocks\n"), s->s_inodes_count,
 708                (unsigned long long) ext2fs_blocks_count(s));
 709         printf(_("%llu blocks (%2.2f%%) reserved for the super user\n"),
 710                (unsigned long long) ext2fs_r_blocks_count(s),
 711                100.0 *  ext2fs_r_blocks_count(s) / ext2fs_blocks_count(s));
 712         printf(_("First data block=%u\n"), s->s_first_data_block);
 713         if (root_uid != 0 || root_gid != 0)
 714                 printf(_("Root directory owner=%u:%u\n"), root_uid, root_gid);
 715         if (s->s_reserved_gdt_blocks)
 716                 printf(_("Maximum filesystem blocks=%lu\n"),
 717                        (s->s_reserved_gdt_blocks + fs->desc_blocks) *
 718                        EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group);
 719         if (fs->group_desc_count > 1)
 720                 printf(_("%u block groups\n"), fs->group_desc_count);
 721         else
 722                 printf(_("%u block group\n"), fs->group_desc_count);
 723         if (ext2fs_has_feature_bigalloc(fs->super))
 724                 printf(_("%u blocks per group, %u clusters per group\n"),
 725                        s->s_blocks_per_group, s->s_clusters_per_group);
 726         else
 727                 printf(_("%u blocks per group, %u fragments per group\n"),
 728                        s->s_blocks_per_group, s->s_clusters_per_group);
 729         printf(_("%u inodes per group\n"), s->s_inodes_per_group);
 730
 731 skip_details:
 732         if (fs->group_desc_count == 1) {
 733                 printf("\n");
 734                 return;
 735         }
 736
 737         if (!e2p_is_null_uuid(s->s_uuid))
 738                 printf(_("Filesystem UUID: %s\n"), e2p_uuid2str(s->s_uuid));
 739         printf("%s", _("Superblock backups stored on blocks: "));
 740         group_block = s->s_first_data_block;
 741         col_left = 0;
 742         for (i = 1; i < fs->group_desc_count; i++) {
 743                 group_block += s->s_blocks_per_group;
 744                 if (!ext2fs_bg_has_super(fs, i))
 745                         continue;
 746                 if (i != 1)
 747                         printf(", ");
 748                 need = int_log10(group_block) + 2;
 749                 if (need > col_left) {
 750                         printf("\n\t");
 751                         col_left = 72;
 752                 }
 753                 col_left -= need;
 754                 printf("%llu", (unsigned long long) group_block);
 755         }
 756         printf("\n\n");
 757 }
 758
 759 /*
 760  * Returns true if making a file system for the Hurd, else 0
 761  */
 762 static int for_hurd(const char *os)
 763 {
 764         if (!os) {
 765 #ifdef __GNU__
 766                 return 1;
 767 #else
 768                 return 0;
 769 #endif
 770         }
 771         if (isdigit(*os))
 772                 return (atoi(os) == EXT2_OS_HURD);
 773         return (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0);
 774 }
 775
 776 /*
 777  * Set the S_CREATOR_OS field.  Return true if OS is known,
 778  * otherwise, 0.
 779  */
 780 static int set_os(struct ext2_super_block *sb, char *os)
 781 {
 782         if (isdigit (*os))
 783                 sb->s_creator_os = atoi (os);
 784         else if (strcasecmp(os, "linux") == 0)
 785                 sb->s_creator_os = EXT2_OS_LINUX;
 786         else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0)
 787                 sb->s_creator_os = EXT2_OS_HURD;
 788         else if (strcasecmp(os, "freebsd") == 0)
 789                 sb->s_creator_os = EXT2_OS_FREEBSD;
 790         else if (strcasecmp(os, "lites") == 0)
 791                 sb->s_creator_os = EXT2_OS_LITES;
 792         else
 793                 return 0;
 794         return 1;
 795 }
 796
 797 #define PATH_SET "PATH=/sbin"
 798
 799 static void parse_extended_opts(struct ext2_super_block *param,
 800                                 const char *opts)
 801 {
 802         char    *buf, *token, *next, *p, *arg, *badopt = 0;
 803         int     len;
 804         int     r_usage = 0;
 805         int     ret;
 806         int     encoding = -1;
 807         char    *encoding_flags = NULL;
 808
 809         len = strlen(opts);
 810         buf = malloc(len+1);
 811         if (!buf) {
 812                 fprintf(stderr, "%s",
 813                         _("Couldn't allocate memory to parse options!\n"));
 814                 exit(1);
 815         }
 816         strcpy(buf, opts);
 817         for (token = buf; token && *token; token = next) {
 818                 p = strchr(token, ',');
 819                 next = 0;
 820                 if (p) {
 821                         *p = 0;
 822                         next = p+1;
 823                 }
 824                 arg = strchr(token, '=');
 825                 if (arg) {
 826                         *arg = 0;
 827                         arg++;
 828                 }
 829                 if (strcmp(token, "desc-size") == 0 ||
 830                     strcmp(token, "desc_size") == 0) {
 831                         int desc_size;
 832
 833                         if (!ext2fs_has_feature_64bit(&fs_param)) {
 834                                 fprintf(stderr,
 835                                         _("%s requires '-O 64bit'\n"), token);
 836                                 r_usage++;
 837                                 continue;
 838                         }
 839                         if (param->s_reserved_gdt_blocks != 0) {
 840                                 fprintf(stderr,
 841                                         _("'%s' must be before 'resize=%u'\n"),
 842                                         token, param->s_reserved_gdt_blocks);
 843                                 r_usage++;
 844                                 continue;
 845                         }
 846                         if (!arg) {
 847                                 r_usage++;
 848                                 badopt = token;
 849                                 continue;
 850                         }
 851                         desc_size = strtoul(arg, &p, 0);
 852                         if (*p || (desc_size & (desc_size - 1))) {
 853                                 fprintf(stderr,
 854                                         _("Invalid desc_size: '%s'\n"), arg);
 855                                 r_usage++;
 856                                 continue;
 857                         }
 858                         param->s_desc_size = desc_size;
 859                 } else if (strcmp(token, "hash_seed") == 0) {
 860                         if (!arg) {
 861                                 r_usage++;
 862                                 badopt = token;
 863                                 continue;
 864                         }
 865                         if (uuid_parse(arg,
 866                                 (unsigned char *)param->s_hash_seed) != 0) {
 867                                 fprintf(stderr,
 868                                         _("Invalid hash seed: %s\n"), arg);
 869                                 r_usage++;
 870                                 continue;
 871                         }
 872                 } else if (strcmp(token, "offset") == 0) {
 873                         if (!arg) {
 874                                 r_usage++;
 875                                 badopt = token;
 876                                 continue;
 877                         }
 878                         offset = strtoull(arg, &p, 0);
 879                         if (*p) {
 880                                 fprintf(stderr, _("Invalid offset: %s\n"),
 881                                         arg);
 882                                 r_usage++;
 883                                 continue;
 884                         }
 885                 } else if (strcmp(token, "mmp_update_interval") == 0) {
 886                         if (!arg) {
 887                                 r_usage++;
 888                                 badopt = token;
 889                                 continue;
 890                         }
 891                         param->s_mmp_update_interval = strtoul(arg, &p, 0);
 892                         if (*p) {
 893                                 fprintf(stderr,
 894                                         _("Invalid mmp_update_interval: %s\n"),
 895                                         arg);
 896                                 r_usage++;
 897                                 continue;
 898                         }
 899                 } else if (strcmp(token, "no_copy_xattrs") == 0) {
 900                         no_copy_xattrs = 1;
 901                         continue;
 902                 } else if (strcmp(token, "num_backup_sb") == 0) {
 903                         if (!arg) {
 904                                 r_usage++;
 905                                 badopt = token;
 906                                 continue;
 907                         }
 908                         num_backups = strtoul(arg, &p, 0);
 909                         if (*p || num_backups > 2) {
 910                                 fprintf(stderr,
 911                                         _("Invalid # of backup "
 912                                           "superblocks: %s\n"),
 913                                         arg);
 914                                 r_usage++;
 915                                 continue;
 916                         }
 917                 } else if (strcmp(token, "packed_meta_blocks") == 0) {
 918                         if (arg)
 919                                 packed_meta_blocks = strtoul(arg, &p, 0);
 920                         else
 921                                 packed_meta_blocks = 1;
 922                         if (packed_meta_blocks)
 923                                 journal_location = 0;
 924                 } else if (strcmp(token, "stride") == 0) {
 925                         if (!arg) {
 926                                 r_usage++;
 927                                 badopt = token;
 928                                 continue;
 929                         }
 930                         param->s_raid_stride = strtoul(arg, &p, 0);
 931                         if (*p) {
 932                                 fprintf(stderr,
 933                                         _("Invalid stride parameter: %s\n"),
 934                                         arg);
 935                                 r_usage++;
 936                                 continue;
 937                         }
 938                 } else if (strcmp(token, "stripe-width") == 0 ||
 939                            strcmp(token, "stripe_width") == 0) {
 940                         if (!arg) {
 941                                 r_usage++;
 942                                 badopt = token;
 943                                 continue;
 944                         }
 945                         param->s_raid_stripe_width = strtoul(arg, &p, 0);
 946                         if (*p) {
 947                                 fprintf(stderr,
 948                                         _("Invalid stripe-width parameter: %s\n"),
 949                                         arg);
 950                                 r_usage++;
 951                                 continue;
 952                         }
 953                 } else if (!strcmp(token, "resize")) {
 954                         blk64_t resize;
 955                         unsigned long bpg, rsv_groups;
 956                         unsigned long group_desc_count, desc_blocks;
 957                         unsigned int gdpb, blocksize;
 958                         int rsv_gdb;
 959
 960                         if (!arg) {
 961                                 r_usage++;
 962                                 badopt = token;
 963                                 continue;
 964                         }
 965
 966                         resize = parse_num_blocks2(arg,
 967                                                    param->s_log_block_size);
 968
 969                         if (resize == 0) {
 970                                 fprintf(stderr,
 971                                         _("Invalid resize parameter: %s\n"),
 972                                         arg);
 973                                 r_usage++;
 974                                 continue;
 975                         }
 976                         if (resize <= ext2fs_blocks_count(param)) {
 977                                 fprintf(stderr, "%s",
 978                                         _("The resize maximum must be greater "
 979                                           "than the filesystem size.\n"));
 980                                 r_usage++;
 981                                 continue;
 982                         }
 983
 984                         blocksize = EXT2_BLOCK_SIZE(param);
 985                         bpg = param->s_blocks_per_group;
 986                         if (!bpg)
 987                                 bpg = blocksize * 8;
 988                         gdpb = EXT2_DESC_PER_BLOCK(param);
 989                         group_desc_count = (__u32) ext2fs_div64_ceil(
 990                                 ext2fs_blocks_count(param), bpg);
 991                         desc_blocks = (group_desc_count +
 992                                        gdpb - 1) / gdpb;
 993                         rsv_groups = ext2fs_div64_ceil(resize, bpg);
 994                         rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) -
 995                                 desc_blocks;
 996                         if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param))
 997                                 rsv_gdb = EXT2_ADDR_PER_BLOCK(param);
 998
 999                         if (rsv_gdb > 0) {
1000                                 if (param->s_rev_level == EXT2_GOOD_OLD_REV) {
1001                                         fprintf(stderr, "%s",
1002         _("On-line resizing not supported with revision 0 filesystems\n"));
1003                                         free(buf);
1004                                         exit(1);
1005                                 }
1006                                 ext2fs_set_feature_resize_inode(param);
1007
1008                                 param->s_reserved_gdt_blocks = rsv_gdb;
1009                         }
1010                 } else if (!strcmp(token, "test_fs")) {
1011                         param->s_flags |= EXT2_FLAGS_TEST_FILESYS;
1012                 } else if (!strcmp(token, "lazy_itable_init")) {
1013                         if (arg)
1014                                 lazy_itable_init = strtoul(arg, &p, 0);
1015                         else
1016                                 lazy_itable_init = 1;
1017                 } else if (!strcmp(token, "assume_storage_prezeroed")) {
1018                         if (arg)
1019                                 assume_storage_prezeroed = strtoul(arg, &p, 0);
1020                         else
1021                                 assume_storage_prezeroed = 1;
1022                 } else if (!strcmp(token, "lazy_journal_init")) {
1023                         if (arg)
1024                                 journal_flags |= strtoul(arg, &p, 0) ?
1025                                                 EXT2_MKJOURNAL_LAZYINIT : 0;
1026                         else
1027                                 journal_flags |= EXT2_MKJOURNAL_LAZYINIT;
1028                 } else if (!strcmp(token, "root_owner")) {
1029                         if (arg) {
1030                                 root_uid = strtoul(arg, &p, 0);
1031                                 if (*p != ':') {
1032                                         fprintf(stderr,
1033                                                 _("Invalid root_owner: '%s'\n"),
1034                                                 arg);
1035                                         r_usage++;
1036                                         continue;
1037                                 }
1038                                 p++;
1039                                 root_gid = strtoul(p, &p, 0);
1040                                 if (*p) {
1041                                         fprintf(stderr,
1042                                                 _("Invalid root_owner: '%s'\n"),
1043                                                 arg);
1044                                         r_usage++;
1045                                         continue;
1046                                 }
1047                         } else {
1048                                 root_uid = getuid();
1049                                 root_gid = getgid();
1050                         }
1051                 } else if (!strcmp(token, "discard")) {
1052                         discard = 1;
1053                 } else if (!strcmp(token, "nodiscard")) {
1054                         discard = 0;
1055                 } else if (!strcmp(token, "quotatype")) {
1056                         char *errtok = NULL;
1057
1058                         if (!arg) {
1059                                 r_usage++;
1060                                 badopt = token;
1061                                 continue;
1062                         }
1063                         quotatype_bits = 0;
1064                         ret = parse_quota_types(arg, &quotatype_bits, &errtok);
1065                         if (ret) {
1066                                 if (errtok) {
1067                                         fprintf(stderr,
1068                                 "Failed to parse quota type at %s", errtok);
1069                                         free(errtok);
1070                                 } else
1071                                         com_err(program_name, ret,
1072                                                 "while parsing quota type");
1073                                 r_usage++;
1074                                 badopt = token;
1075                                 continue;
1076                         }
1077                 } else if (!strcmp(token, "android_sparse")) {
1078                         android_sparse_file = 1;
1079                 } else if (!strcmp(token, "encoding")) {
1080                         if (!arg) {
1081                                 r_usage++;
1082                                 continue;
1083                         }
1084
1085                         encoding = e2p_str2encoding(arg);
1086                         if (encoding < 0) {
1087                                 fprintf(stderr, _("Invalid encoding: %s"), arg);
1088                                 r_usage++;
1089                                 continue;
1090                         }
1091                         param->s_encoding = encoding;
1092                         ext2fs_set_feature_casefold(param);
1093                 } else if (!strcmp(token, "encoding_flags")) {
1094                         if (!arg) {
1095                                 r_usage++;
1096                                 continue;
1097                         }
1098                         encoding_flags = arg;
1099                 } else if (!strcmp(token, "orphan_file_size")) {
1100                         if (!arg) {
1101                                 r_usage++;
1102                                 badopt = token;
1103                                 continue;
1104                         }
1105                         orphan_file_blocks = parse_num_blocks2(arg,
1106                                                 fs_param.s_log_block_size);
1107                         if (orphan_file_blocks == 0) {
1108                                 fprintf(stderr,
1109                                         _("Invalid size of orphan file %s\n"),
1110                                         arg);
1111                                 r_usage++;
1112                                 continue;
1113                         }
1114                 } else {
1115                         r_usage++;
1116                         badopt = token;
1117                 }
1118         }
1119         if (r_usage) {
1120                 fprintf(stderr, _("\nBad option(s) specified: %s\n\n"
1121                         "Extended options are separated by commas, "
1122                         "and may take an argument which\n"
1123                         "\tis set off by an equals ('=') sign.\n\n"
1124                         "Valid extended options are:\n"
1125                         "\tmmp_update_interval=<interval>\n"
1126                         "\tnum_backup_sb=<0|1|2>\n"
1127                         "\tstride=<RAID per-disk data chunk in blocks>\n"
1128                         "\tstripe-width=<RAID stride * data disks in blocks>\n"
1129                         "\toffset=<offset to create the file system>\n"
1130                         "\tresize=<resize maximum size in blocks>\n"
1131                         "\tpacked_meta_blocks=<0 to disable, 1 to enable>\n"
1132                         "\tlazy_itable_init=<0 to disable, 1 to enable>\n"
1133                         "\tlazy_journal_init=<0 to disable, 1 to enable>\n"
1134                         "\troot_owner=<uid of root dir>:<gid of root dir>\n"
1135                         "\ttest_fs\n"
1136                         "\tdiscard\n"
1137                         "\tnodiscard\n"
1138                         "\tencoding=<encoding>\n"
1139                         "\tencoding_flags=<flags>\n"
1140                         "\tquotatype=<quota type(s) to be enabled>\n"
1141                         "\tassume_storage_prezeroed=<0 to disable, 1 to enable>\n\n"),
1142                         badopt ? badopt : "");
1143                 free(buf);
1144                 exit(1);
1145         }
1146         if (param->s_raid_stride &&
1147             (param->s_raid_stripe_width % param->s_raid_stride) != 0)
1148                 fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even "
1149                                   "multiple of stride %u.\n\n"),
1150                         param->s_raid_stripe_width, param->s_raid_stride);
1151
1152         if (ext2fs_has_feature_casefold(param)) {
1153                 param->s_encoding_flags =
1154                         e2p_get_encoding_flags(param->s_encoding);
1155
1156                 if (encoding_flags &&
1157                     e2p_str2encoding_flags(param->s_encoding, encoding_flags,
1158                                            &param->s_encoding_flags)) {
1159                         fprintf(stderr, _("error: Invalid encoding flag: %s\n"),
1160                                 encoding_flags);
1161                         free(buf);
1162                         exit(1);
1163                 }
1164         } else if (encoding_flags) {
1165                 fprintf(stderr, _("error: An encoding must be explicitly "
1166                                   "specified when passing encoding-flags\n"));
1167                 free(buf);
1168                 exit(1);
1169         }
1170
1171         free(buf);
1172 }
1173
1174 static __u32 ok_features[3] = {
1175         /* Compat */
1176         EXT3_FEATURE_COMPAT_HAS_JOURNAL |
1177                 EXT2_FEATURE_COMPAT_RESIZE_INODE |
1178                 EXT2_FEATURE_COMPAT_DIR_INDEX |
1179                 EXT2_FEATURE_COMPAT_EXT_ATTR |
1180                 EXT4_FEATURE_COMPAT_SPARSE_SUPER2 |
1181                 EXT4_FEATURE_COMPAT_FAST_COMMIT |
1182                 EXT4_FEATURE_COMPAT_STABLE_INODES |
1183                 EXT4_FEATURE_COMPAT_ORPHAN_FILE,
1184         /* Incompat */
1185         EXT2_FEATURE_INCOMPAT_FILETYPE|
1186                 EXT3_FEATURE_INCOMPAT_EXTENTS|
1187                 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
1188                 EXT2_FEATURE_INCOMPAT_META_BG|
1189                 EXT4_FEATURE_INCOMPAT_FLEX_BG|
1190                 EXT4_FEATURE_INCOMPAT_EA_INODE|
1191                 EXT4_FEATURE_INCOMPAT_MMP |
1192                 EXT4_FEATURE_INCOMPAT_64BIT|
1193                 EXT4_FEATURE_INCOMPAT_INLINE_DATA|
1194                 EXT4_FEATURE_INCOMPAT_ENCRYPT |
1195                 EXT4_FEATURE_INCOMPAT_CASEFOLD |
1196                 EXT4_FEATURE_INCOMPAT_CSUM_SEED |
1197                 EXT4_FEATURE_INCOMPAT_LARGEDIR,
1198         /* R/O compat */
1199         EXT2_FEATURE_RO_COMPAT_LARGE_FILE|
1200                 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
1201                 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
1202                 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
1203                 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|
1204                 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
1205                 EXT4_FEATURE_RO_COMPAT_BIGALLOC|
1206                 EXT4_FEATURE_RO_COMPAT_QUOTA|
1207                 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|
1208                 EXT4_FEATURE_RO_COMPAT_PROJECT|
1209                 EXT4_FEATURE_RO_COMPAT_VERITY
1210 };
1211
1212
1213 static void syntax_err_report(const char *filename, long err, int line_num)
1214 {
1215         fprintf(stderr,
1216                 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"),
1217                 filename, line_num, error_message(err));
1218         exit(1);
1219 }
1220
1221 static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 };
1222
1223 static void edit_feature(const char *str, __u32 *compat_array)
1224 {
1225         if (!str)
1226                 return;
1227
1228         if (e2p_edit_feature(str, compat_array, ok_features)) {
1229                 fprintf(stderr, _("Invalid filesystem option set: %s\n"),
1230                         str);
1231                 exit(1);
1232         }
1233 }
1234
1235 static void edit_mntopts(const char *str, __u32 *mntopts)
1236 {
1237         if (!str)
1238                 return;
1239
1240         if (e2p_edit_mntopts(str, mntopts, ~0)) {
1241                 fprintf(stderr, _("Invalid mount option set: %s\n"),
1242                         str);
1243                 exit(1);
1244         }
1245 }
1246
1247 struct str_list {
1248         char **list;
1249         int num;
1250         int max;
1251 };
1252
1253 static errcode_t init_list(struct str_list *sl)
1254 {
1255         sl->num = 0;
1256         sl->max = 1;
1257         sl->list = malloc((sl->max+1) * sizeof(char *));
1258         if (!sl->list)
1259                 return ENOMEM;
1260         sl->list[0] = 0;
1261         return 0;
1262 }
1263
1264 static errcode_t push_string(struct str_list *sl, const char *str)
1265 {
1266         char **new_list;
1267
1268         if (sl->num >= sl->max) {
1269                 sl->max += 2;
1270                 new_list = realloc(sl->list, (sl->max+1) * sizeof(char *));
1271                 if (!new_list)
1272                         return ENOMEM;
1273                 sl->list = new_list;
1274         }
1275         sl->list[sl->num] = malloc(strlen(str)+1);
1276         if (sl->list[sl->num] == 0)
1277                 return ENOMEM;
1278         strcpy(sl->list[sl->num], str);
1279         sl->num++;
1280         sl->list[sl->num] = 0;
1281         return 0;
1282 }
1283
1284 static void print_str_list(char **list)
1285 {
1286         char **cpp;
1287
1288         for (cpp = list; *cpp; cpp++) {
1289                 printf("'%s'", *cpp);
1290                 if (cpp[1])
1291                         fputs(", ", stdout);
1292         }
1293         fputc('\n', stdout);
1294 }
1295
1296 /*
1297  * Return TRUE if the profile has the given subsection
1298  */
1299 static int profile_has_subsection(profile_t prof, const char *section,
1300                                   const char *subsection)
1301 {
1302         void                    *state;
1303         const char              *names[4];
1304         char                    *name;
1305         int                     ret = 0;
1306
1307         names[0] = section;
1308         names[1] = subsection;
1309         names[2] = 0;
1310
1311         if (profile_iterator_create(prof, names,
1312                                     PROFILE_ITER_LIST_SECTION |
1313                                     PROFILE_ITER_RELATIONS_ONLY, &state))
1314                 return 0;
1315
1316         if ((profile_iterator(&state, &name, 0) == 0) && name) {
1317                 free(name);
1318                 ret = 1;
1319         }
1320
1321         profile_iterator_free(&state);
1322         return ret;
1323 }
1324
1325 static char **parse_fs_type(const char *fs_type,
1326                             const char *usage_types,
1327                             struct ext2_super_block *sb,
1328                             blk64_t fs_blocks_count,
1329                             char *progname)
1330 {
1331         const char      *ext_type = 0;
1332         char            *parse_str;
1333         char            *profile_type = 0;
1334         char            *cp, *t;
1335         const char      *size_type;
1336         struct str_list list;
1337         unsigned long long meg;
1338         int             is_hurd = for_hurd(creator_os);
1339
1340         if (init_list(&list))
1341                 return 0;
1342
1343         if (fs_type)
1344                 ext_type = fs_type;
1345         else if (is_hurd)
1346                 ext_type = "ext2";
1347         else if (!strcmp(program_name, "mke3fs"))
1348                 ext_type = "ext3";
1349         else if (!strcmp(program_name, "mke4fs"))
1350                 ext_type = "ext4";
1351         else if (progname) {
1352                 ext_type = strrchr(progname, '/');
1353                 if (ext_type)
1354                         ext_type++;
1355                 else
1356                         ext_type = progname;
1357
1358                 if (!strncmp(ext_type, "mkfs.", 5)) {
1359                         ext_type += 5;
1360                         if (ext_type[0] == 0)
1361                                 ext_type = 0;
1362                 } else
1363                         ext_type = 0;
1364         }
1365
1366         if (!ext_type) {
1367                 profile_get_string(profile, "defaults", "fs_type", 0,
1368                                    "ext2", &profile_type);
1369                 ext_type = profile_type;
1370                 if (!strcmp(ext_type, "ext2") && (journal_size != 0))
1371                         ext_type = "ext3";
1372         }
1373
1374
1375         if (!profile_has_subsection(profile, "fs_types", ext_type) &&
1376             strcmp(ext_type, "ext2")) {
1377                 printf(_("\nYour mke2fs.conf file does not define the "
1378                          "%s filesystem type.\n"), ext_type);
1379                 if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") ||
1380                     !strcmp(ext_type, "ext4dev")) {
1381                         printf("%s", _("You probably need to install an "
1382                                        "updated mke2fs.conf file.\n\n"));
1383                 }
1384                 if (!force) {
1385                         printf("%s", _("Aborting...\n"));
1386                         exit(1);
1387                 }
1388         }
1389
1390         meg = (1024 * 1024) / EXT2_BLOCK_SIZE(sb);
1391         if (fs_blocks_count < 3 * meg)
1392                 size_type = "floppy";
1393         else if (fs_blocks_count < 512 * meg)
1394                 size_type = "small";
1395         else if (fs_blocks_count < 4 * 1024 * 1024 * meg)
1396                 size_type = "default";
1397         else if (fs_blocks_count < 16 * 1024 * 1024 * meg)
1398                 size_type = "big";
1399         else
1400                 size_type = "huge";
1401
1402         if (!usage_types)
1403                 usage_types = size_type;
1404
1405         parse_str = malloc(strlen(usage_types)+1);
1406         if (!parse_str) {
1407                 free(profile_type);
1408                 free(list.list);
1409                 return 0;
1410         }
1411         strcpy(parse_str, usage_types);
1412
1413         if (ext_type)
1414                 push_string(&list, ext_type);
1415         cp = parse_str;
1416         while (1) {
1417                 t = strchr(cp, ',');
1418                 if (t)
1419                         *t = '\0';
1420
1421                 if (*cp) {
1422                         if (profile_has_subsection(profile, "fs_types", cp))
1423                                 push_string(&list, cp);
1424                         else if (strcmp(cp, "default") != 0)
1425                                 fprintf(stderr,
1426                                         _("\nWarning: the fs_type %s is not "
1427                                           "defined in mke2fs.conf\n\n"),
1428                                         cp);
1429                 }
1430                 if (t)
1431                         cp = t+1;
1432                 else
1433                         break;
1434         }
1435         free(parse_str);
1436         free(profile_type);
1437         if (is_hurd)
1438                 push_string(&list, "hurd");
1439         return (list.list);
1440 }
1441
1442 char *get_string_from_profile(char **types, const char *opt,
1443                                      const char *def_val)
1444 {
1445         char *ret = 0;
1446         int i;
1447
1448         for (i=0; types[i]; i++);
1449         for (i-=1; i >=0 ; i--) {
1450                 profile_get_string(profile, "fs_types", types[i],
1451                                    opt, 0, &ret);
1452                 if (ret)
1453                         return ret;
1454         }
1455         profile_get_string(profile, "defaults", opt, 0, def_val, &ret);
1456         return (ret);
1457 }
1458
1459 int get_int_from_profile(char **types, const char *opt, int def_val)
1460 {
1461         int ret;
1462         char **cpp;
1463
1464         profile_get_integer(profile, "defaults", opt, 0, def_val, &ret);
1465         for (cpp = types; *cpp; cpp++)
1466                 profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret);
1467         return ret;
1468 }
1469
1470 static unsigned int get_uint_from_profile(char **types, const char *opt,
1471                                         unsigned int def_val)
1472 {
1473         unsigned int ret;
1474         char **cpp;
1475
1476         profile_get_uint(profile, "defaults", opt, 0, def_val, &ret);
1477         for (cpp = types; *cpp; cpp++)
1478                 profile_get_uint(profile, "fs_types", *cpp, opt, ret, &ret);
1479         return ret;
1480 }
1481
1482 static double get_double_from_profile(char **types, const char *opt,
1483                                       double def_val)
1484 {
1485         double ret;
1486         char **cpp;
1487
1488         profile_get_double(profile, "defaults", opt, 0, def_val, &ret);
1489         for (cpp = types; *cpp; cpp++)
1490                 profile_get_double(profile, "fs_types", *cpp, opt, ret, &ret);
1491         return ret;
1492 }
1493
1494 int get_bool_from_profile(char **types, const char *opt, int def_val)
1495 {
1496         int ret;
1497         char **cpp;
1498
1499         profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret);
1500         for (cpp = types; *cpp; cpp++)
1501                 profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret);
1502         return ret;
1503 }
1504
1505 extern const char *mke2fs_default_profile;
1506 static const char *default_files[] = { "<default>", 0 };
1507
1508 struct device_param {
1509         unsigned long min_io;           /* preferred minimum IO size */
1510         unsigned long opt_io;           /* optimal IO size */
1511         unsigned long alignment_offset; /* alignment offset wrt physical block size */
1512         unsigned int dax:1;             /* supports dax? */
1513 };
1514
1515 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1516 /*
1517  * Sets the geometry of a device (stripe/stride), and returns the
1518  * device's alignment offset, if any, or a negative error.
1519  */
1520 static int get_device_geometry(const char *file,
1521                                unsigned int blocksize,
1522                                unsigned int psector_size,
1523                                struct device_param *dev_param)
1524 {
1525         int rc = -1;
1526         blkid_probe pr;
1527         blkid_topology tp;
1528         struct stat statbuf;
1529
1530         memset(dev_param, 0, sizeof(*dev_param));
1531
1532         /* Nothing to do for a regular file */
1533         if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode))
1534                 return 0;
1535
1536         pr = blkid_new_probe_from_filename(file);
1537         if (!pr)
1538                 goto out;
1539
1540         tp = blkid_probe_get_topology(pr);
1541         if (!tp)
1542                 goto out;
1543
1544         dev_param->min_io = blkid_topology_get_minimum_io_size(tp);
1545         dev_param->opt_io = blkid_topology_get_optimal_io_size(tp);
1546         if ((dev_param->min_io == 0) && (psector_size > blocksize))
1547                 dev_param->min_io = psector_size;
1548         if ((dev_param->opt_io == 0) && dev_param->min_io > 0)
1549                 dev_param->opt_io = dev_param->min_io;
1550         if ((dev_param->opt_io == 0) && (psector_size > blocksize))
1551                 dev_param->opt_io = psector_size;
1552
1553         dev_param->alignment_offset = blkid_topology_get_alignment_offset(tp);
1554 #ifdef HAVE_BLKID_TOPOLOGY_GET_DAX
1555         dev_param->dax = blkid_topology_get_dax(tp);
1556 #endif
1557         rc = 0;
1558 out:
1559         blkid_free_probe(pr);
1560         return rc;
1561 }
1562 #endif
1563
1564 static void PRS(int argc, char *argv[])
1565 {
1566         int             b, c, flags;
1567         int             cluster_size = 0;
1568         char            *tmp, **cpp;
1569         int             explicit_fssize = 0;
1570         int             blocksize = 0;
1571         int             inode_ratio = 0;
1572         int             inode_size = 0;
1573         unsigned long   flex_bg_size = 0;
1574         double          reserved_ratio = -1.0;
1575         int             lsector_size = 0, psector_size = 0;
1576         int             show_version_only = 0, is_device = 0;
1577         unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */
1578         int             default_orphan_file = 0;
1579         int             default_csum_seed = 0;
1580         errcode_t       retval;
1581         char *          oldpath = getenv("PATH");
1582         char *          extended_opts = 0;
1583         char *          fs_type = 0;
1584         char *          usage_types = 0;
1585         /*
1586          * NOTE: A few words about fs_blocks_count and blocksize:
1587          *
1588          * Initially, blocksize is set to zero, which implies 1024.
1589          * If -b is specified, blocksize is updated to the user's value.
1590          *
1591          * Next, the device size or the user's "blocks" command line argument
1592          * is used to set fs_blocks_count; the units are blocksize.
1593          *
1594          * Later, if blocksize hasn't been set and the profile specifies a
1595          * blocksize, then blocksize is updated and fs_blocks_count is scaled
1596          * appropriately.  Note the change in units!
1597          *
1598          * Finally, we complain about fs_blocks_count > 2^32 on a non-64bit fs.
1599          */
1600         blk64_t         fs_blocks_count = 0;
1601         int             s_opt = -1, r_opt = -1;
1602         char            *fs_features = 0;
1603         int             fs_features_size = 0;
1604         int             use_bsize;
1605         char            *newpath;
1606         int             pathlen = sizeof(PATH_SET) + 1;
1607 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1608         struct device_param dev_param;
1609 #endif
1610
1611         if (oldpath)
1612                 pathlen += strlen(oldpath);
1613         newpath = malloc(pathlen);
1614         if (!newpath) {
1615                 fprintf(stderr, "%s",
1616                         _("Couldn't allocate memory for new PATH.\n"));
1617                 exit(1);
1618         }
1619         strcpy(newpath, PATH_SET);
1620
1621         /* Update our PATH to include /sbin  */
1622         if (oldpath) {
1623                 strcat (newpath, ":");
1624                 strcat (newpath, oldpath);
1625         }
1626         putenv (newpath);
1627
1628         /* Determine the system page size if possible */
1629 #ifdef HAVE_SYSCONF
1630 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
1631 #define _SC_PAGESIZE _SC_PAGE_SIZE
1632 #endif
1633 #ifdef _SC_PAGESIZE
1634         {
1635                 long sysval = sysconf(_SC_PAGESIZE);
1636
1637                 if (sysval > 0)
1638                         sys_page_size = sysval;
1639         }
1640 #endif /* _SC_PAGESIZE */
1641 #endif /* HAVE_SYSCONF */
1642
1643         if ((tmp = getenv("MKE2FS_CONFIG")) != NULL)
1644                 config_fn[0] = tmp;
1645         profile_set_syntax_err_cb(syntax_err_report);
1646         retval = profile_init(config_fn, &profile);
1647         if (retval == ENOENT) {
1648                 retval = profile_init(default_files, &profile);
1649                 if (retval)
1650                         goto profile_error;
1651                 retval = profile_set_default(profile, mke2fs_default_profile);
1652                 if (retval)
1653                         goto profile_error;
1654         } else if (retval) {
1655 profile_error:
1656                 fprintf(stderr, _("Couldn't init profile successfully"
1657                                   " (error: %ld).\n"), retval);
1658                 exit(1);
1659         }
1660
1661         setbuf(stdout, NULL);
1662         setbuf(stderr, NULL);
1663         add_error_table(&et_ext2_error_table);
1664         add_error_table(&et_prof_error_table);
1665         memset(&fs_param, 0, sizeof(struct ext2_super_block));
1666         fs_param.s_rev_level = 1;  /* Create revision 1 filesystems now */
1667
1668         if (is_before_linux_ver(2, 2, 0))
1669                 fs_param.s_rev_level = 0;
1670
1671         if (argc && *argv) {
1672                 program_name = get_progname(*argv);
1673
1674                 /* If called as mkfs.ext3, create a journal inode */
1675                 if (!strcmp(program_name, "mkfs.ext3") ||
1676                     !strcmp(program_name, "mke3fs"))
1677                         journal_size = -1;
1678         }
1679
1680         while ((c = getopt (argc, argv,
1681                     "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) {
1682                 switch (c) {
1683                 case 'b':
1684                         blocksize = parse_num_blocks2(optarg, -1);
1685                         b = (blocksize > 0) ? blocksize : -blocksize;
1686                         if (b < EXT2_MIN_BLOCK_SIZE ||
1687                             b > EXT2_MAX_BLOCK_SIZE) {
1688                                 com_err(program_name, 0,
1689                                         _("invalid block size - %s"), optarg);
1690                                 exit(1);
1691                         }
1692                         if (blocksize > 4096)
1693                                 fprintf(stderr, _("Warning: blocksize %d not "
1694                                                   "usable on most systems.\n"),
1695                                         blocksize);
1696                         if (blocksize > 0)
1697                                 fs_param.s_log_block_size =
1698                                         int_log2(blocksize >>
1699                                                  EXT2_MIN_BLOCK_LOG_SIZE);
1700                         break;
1701                 case 'c':       /* Check for bad blocks */
1702                         cflag++;
1703                         break;
1704                 case 'C':
1705                         cluster_size = parse_num_blocks2(optarg, -1);
1706                         if (cluster_size <= EXT2_MIN_CLUSTER_SIZE ||
1707                             cluster_size > EXT2_MAX_CLUSTER_SIZE) {
1708                                 com_err(program_name, 0,
1709                                         _("invalid cluster size - %s"),
1710                                         optarg);
1711                                 exit(1);
1712                         }
1713                         break;
1714                 case 'd':
1715                         src_root_dir = optarg;
1716                         break;
1717                 case 'D':
1718                         direct_io = 1;
1719                         break;
1720                 case 'R':
1721                         com_err(program_name, 0, "%s",
1722                                 _("'-R' is deprecated, use '-E' instead"));
1723                         /* fallthrough */
1724                 case 'E':
1725                         extended_opts = optarg;
1726                         break;
1727                 case 'e':
1728                         if (strcmp(optarg, "continue") == 0)
1729                                 errors_behavior = EXT2_ERRORS_CONTINUE;
1730                         else if (strcmp(optarg, "remount-ro") == 0)
1731                                 errors_behavior = EXT2_ERRORS_RO;
1732                         else if (strcmp(optarg, "panic") == 0)
1733                                 errors_behavior = EXT2_ERRORS_PANIC;
1734                         else {
1735                                 com_err(program_name, 0,
1736                                         _("bad error behavior - %s"),
1737                                         optarg);
1738                                 usage();
1739                         }
1740                         break;
1741                 case 'F':
1742                         force++;
1743                         break;
1744                 case 'g':
1745                         fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
1746                         if (*tmp) {
1747                                 com_err(program_name, 0, "%s",
1748                                 _("Illegal number for blocks per group"));
1749                                 exit(1);
1750                         }
1751                         if ((fs_param.s_blocks_per_group % 8) != 0) {
1752                                 com_err(program_name, 0, "%s",
1753                                 _("blocks per group must be multiple of 8"));
1754                                 exit(1);
1755                         }
1756                         break;
1757                 case 'G':
1758                         flex_bg_size = strtoul(optarg, &tmp, 0);
1759                         if (*tmp) {
1760                                 com_err(program_name, 0, "%s",
1761                                         _("Illegal number for flex_bg size"));
1762                                 exit(1);
1763                         }
1764                         if (flex_bg_size < 1 ||
1765                             (flex_bg_size & (flex_bg_size-1)) != 0) {
1766                                 com_err(program_name, 0, "%s",
1767                                         _("flex_bg size must be a power of 2"));
1768                                 exit(1);
1769                         }
1770                         if (flex_bg_size > MAX_32_NUM) {
1771                                 com_err(program_name, 0,
1772                                 _("flex_bg size (%lu) must be less than"
1773                                 " or equal to 2^31"), flex_bg_size);
1774                                 exit(1);
1775                         }
1776                         break;
1777                 case 'i':
1778                         inode_ratio = parse_num_blocks(optarg, -1);
1779                         if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
1780                             inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024) {
1781                                 com_err(program_name, 0,
1782                                         _("invalid inode ratio %s (min %d/max %d)"),
1783                                         optarg, EXT2_MIN_BLOCK_SIZE,
1784                                         EXT2_MAX_BLOCK_SIZE * 1024);
1785                                 exit(1);
1786                         }
1787                         break;
1788                 case 'I':
1789                         inode_size = strtoul(optarg, &tmp, 0);
1790                         if (*tmp) {
1791                                 com_err(program_name, 0,
1792                                         _("invalid inode size - %s"), optarg);
1793                                 exit(1);
1794                         }
1795                         break;
1796                 case 'j':
1797                         if (!journal_size)
1798                                 journal_size = -1;
1799                         if (!journal_fc_size)
1800                                 journal_fc_size = -1;
1801                         break;
1802                 case 'J':
1803                         parse_journal_opts(optarg);
1804                         break;
1805                 case 'K':
1806                         fprintf(stderr, "%s",
1807                                 _("Warning: -K option is deprecated and "
1808                                   "should not be used anymore. Use "
1809                                   "\'-E nodiscard\' extended option "
1810                                   "instead!\n"));
1811                         discard = 0;
1812                         break;
1813                 case 'l':
1814                         bad_blocks_filename = realloc(bad_blocks_filename,
1815                                                       strlen(optarg) + 1);
1816                         if (!bad_blocks_filename) {
1817                                 com_err(program_name, ENOMEM, "%s",
1818                                         _("in malloc for bad_blocks_filename"));
1819                                 exit(1);
1820                         }
1821                         strcpy(bad_blocks_filename, optarg);
1822                         break;
1823                 case 'L':
1824                         volume_label = optarg;
1825                         if (strlen(volume_label) > EXT2_LABEL_LEN) {
1826                                 volume_label[EXT2_LABEL_LEN] = '\0';
1827                                 fprintf(stderr, _("Warning: label too long; will be truncated to '%s'\n\n"),
1828                                         volume_label);
1829                         }
1830                         break;
1831                 case 'm':
1832                         reserved_ratio = strtod(optarg, &tmp);
1833                         if ( *tmp || reserved_ratio > 50 ||
1834                              reserved_ratio < 0) {
1835                                 com_err(program_name, 0,
1836                                         _("invalid reserved blocks percent - %s"),
1837                                         optarg);
1838                                 exit(1);
1839                         }
1840                         break;
1841                 case 'M':
1842                         mount_dir = optarg;
1843                         break;
1844                 case 'n':
1845                         noaction++;
1846                         break;
1847                 case 'N':
1848                         num_inodes = strtoul(optarg, &tmp, 0);
1849                         if (*tmp) {
1850                                 com_err(program_name, 0,
1851                                         _("bad num inodes - %s"), optarg);
1852                                         exit(1);
1853                         }
1854                         break;
1855                 case 'o':
1856                         creator_os = optarg;
1857                         break;
1858                 case 'O':
1859                         retval = ext2fs_resize_mem(fs_features_size,
1860                                    fs_features_size + 1 + strlen(optarg),
1861                                                    &fs_features);
1862                         if (retval) {
1863                                 com_err(program_name, retval,
1864                                      _("while allocating fs_feature string"));
1865                                 exit(1);
1866                         }
1867                         if (fs_features_size)
1868                                 strcat(fs_features, ",");
1869                         else
1870                                 fs_features[0] = 0;
1871                         strcat(fs_features, optarg);
1872                         fs_features_size += 1 + strlen(optarg);
1873                         break;
1874                 case 'q':
1875                         quiet = 1;
1876                         break;
1877                 case 'r':
1878                         r_opt = strtoul(optarg, &tmp, 0);
1879                         if (*tmp) {
1880                                 com_err(program_name, 0,
1881                                         _("bad revision level - %s"), optarg);
1882                                 exit(1);
1883                         }
1884                         if (r_opt > EXT2_MAX_SUPP_REV) {
1885                                 com_err(program_name, EXT2_ET_REV_TOO_HIGH,
1886                                         _("while trying to create revision %d"), r_opt);
1887                                 exit(1);
1888                         }
1889                         fs_param.s_rev_level = r_opt;
1890                         break;
1891                 case 's':       /* deprecated */
1892                         s_opt = atoi(optarg);
1893                         break;
1894                 case 'S':
1895                         super_only = 1;
1896                         break;
1897                 case 't':
1898                         if (fs_type) {
1899                                 com_err(program_name, 0, "%s",
1900                                     _("The -t option may only be used once"));
1901                                 exit(1);
1902                         }
1903                         fs_type = strdup(optarg);
1904                         break;
1905                 case 'T':
1906                         if (usage_types) {
1907                                 com_err(program_name, 0, "%s",
1908                                     _("The -T option may only be used once"));
1909                                 exit(1);
1910                         }
1911                         usage_types = strdup(optarg);
1912                         break;
1913                 case 'U':
1914                         fs_uuid = optarg;
1915                         break;
1916                 case 'v':
1917                         verbose = 1;
1918                         break;
1919                 case 'V':
1920                         /* Print version number and exit */
1921                         show_version_only++;
1922                         break;
1923                 case 'z':
1924                         undo_file = optarg;
1925                         break;
1926                 default:
1927                         usage();
1928                 }
1929         }
1930         if ((optind == argc) && !show_version_only)
1931                 usage();
1932         device_name = argv[optind++];
1933
1934         if (!quiet || show_version_only)
1935                 fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION,
1936                          E2FSPROGS_DATE);
1937
1938         if (show_version_only) {
1939                 fprintf(stderr, _("\tUsing %s\n"),
1940                         error_message(EXT2_ET_BASE));
1941                 exit(0);
1942         }
1943
1944         /*
1945          * If there's no blocksize specified and there is a journal
1946          * device, use it to figure out the blocksize
1947          */
1948         if (blocksize <= 0 && journal_device) {
1949                 ext2_filsys     jfs;
1950                 io_manager      io_ptr;
1951
1952 #ifdef CONFIG_TESTIO_DEBUG
1953                 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1954                         io_ptr = test_io_manager;
1955                         test_io_backing_manager = default_io_manager;
1956                 } else
1957 #endif
1958                         io_ptr = default_io_manager;
1959                 retval = ext2fs_open(journal_device,
1960                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
1961                                      0, io_ptr, &jfs);
1962                 if (retval) {
1963                         com_err(program_name, retval,
1964                                 _("while trying to open journal device %s\n"),
1965                                 journal_device);
1966                         exit(1);
1967                 }
1968                 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
1969                         com_err(program_name, 0,
1970                                 _("Journal dev blocksize (%d) smaller than "
1971                                   "minimum blocksize %d\n"), jfs->blocksize,
1972                                 -blocksize);
1973                         exit(1);
1974                 }
1975                 blocksize = jfs->blocksize;
1976                 printf(_("Using journal device's blocksize: %d\n"), blocksize);
1977                 fs_param.s_log_block_size =
1978                         int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1979                 ext2fs_close_free(&jfs);
1980         }
1981
1982         if (optind < argc) {
1983                 fs_blocks_count = parse_num_blocks2(argv[optind++],
1984                                                    fs_param.s_log_block_size);
1985                 if (!fs_blocks_count) {
1986                         com_err(program_name, 0,
1987                                 _("invalid blocks '%s' on device '%s'"),
1988                                 argv[optind - 1], device_name);
1989                         exit(1);
1990                 }
1991         }
1992         if (optind < argc)
1993                 usage();
1994
1995         profile_get_integer(profile, "options", "sync_kludge", 0, 0,
1996                             &sync_kludge);
1997         tmp = getenv("MKE2FS_SYNC");
1998         if (tmp)
1999                 sync_kludge = atoi(tmp);
2000
2001         profile_get_integer(profile, "options", "proceed_delay", 0, 0,
2002                             &proceed_delay);
2003
2004         if (fs_blocks_count)
2005                 explicit_fssize = 1;
2006
2007         check_mount(device_name, force, _("filesystem"));
2008
2009         /* Determine the size of the device (if possible) */
2010         if (noaction && fs_blocks_count) {
2011                 dev_size = fs_blocks_count;
2012                 retval = 0;
2013         } else
2014                 retval = ext2fs_get_device_size2(device_name,
2015                                                  EXT2_BLOCK_SIZE(&fs_param),
2016                                                  &dev_size);
2017         if (retval == ENOENT) {
2018                 int fd;
2019
2020                 if (!explicit_fssize) {
2021                         fprintf(stderr,
2022                                 _("The file %s does not exist and no "
2023                                   "size was specified.\n"), device_name);
2024                         exit(1);
2025                 }
2026                 fd = ext2fs_open_file(device_name,
2027                                       O_CREAT | O_WRONLY, 0666);
2028                 if (fd < 0) {
2029                         retval = errno;
2030                 } else {
2031                         dev_size = 0;
2032                         retval = 0;
2033                         close(fd);
2034                         printf(_("Creating regular file %s\n"), device_name);
2035                 }
2036         }
2037         if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
2038                 com_err(program_name, retval, "%s",
2039                         _("while trying to determine filesystem size"));
2040                 exit(1);
2041         }
2042         if (!fs_blocks_count) {
2043                 if (retval == EXT2_ET_UNIMPLEMENTED) {
2044                         com_err(program_name, 0, "%s",
2045                                 _("Couldn't determine device size; you "
2046                                 "must specify\nthe size of the "
2047                                 "filesystem\n"));
2048                         exit(1);
2049                 } else {
2050                         if (dev_size == 0) {
2051                                 com_err(program_name, 0, "%s",
2052                                 _("Device size reported to be zero.  "
2053                                   "Invalid partition specified, or\n\t"
2054                                   "partition table wasn't reread "
2055                                   "after running fdisk, due to\n\t"
2056                                   "a modified partition being busy "
2057                                   "and in use.  You may need to reboot\n\t"
2058                                   "to re-read your partition table.\n"
2059                                   ));
2060                                 exit(1);
2061                         }
2062                         fs_blocks_count = dev_size;
2063                         if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param))
2064                                 fs_blocks_count &= ~((blk64_t) ((sys_page_size /
2065                                              EXT2_BLOCK_SIZE(&fs_param))-1));
2066                 }
2067         } else if (!force && is_device && (fs_blocks_count > dev_size)) {
2068                 com_err(program_name, 0, "%s",
2069                         _("Filesystem larger than apparent device size."));
2070                 proceed_question(proceed_delay);
2071         }
2072
2073         if (!fs_type)
2074                 profile_get_string(profile, "devices", device_name,
2075                                    "fs_type", 0, &fs_type);
2076         if (!usage_types)
2077                 profile_get_string(profile, "devices", device_name,
2078                                    "usage_types", 0, &usage_types);
2079         if (!creator_os)
2080                 profile_get_string(profile, "defaults", "creator_os", 0,
2081                                    0, &creator_os);
2082
2083         /*
2084          * We have the file system (or device) size, so we can now
2085          * determine the appropriate file system types so the fs can
2086          * be appropriately configured.
2087          */
2088         fs_types = parse_fs_type(fs_type, usage_types, &fs_param,
2089                                  fs_blocks_count ? fs_blocks_count : dev_size,
2090                                  argv[0]);
2091         if (!fs_types) {
2092                 fprintf(stderr, "%s", _("Failed to parse fs types list\n"));
2093                 exit(1);
2094         }
2095
2096         /* Figure out what features should be enabled */
2097
2098         tmp = NULL;
2099         if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) {
2100                 tmp = get_string_from_profile(fs_types, "base_features",
2101                       "sparse_super,large_file,filetype,resize_inode,dir_index");
2102                 edit_feature(tmp, &fs_param.s_feature_compat);
2103                 free(tmp);
2104
2105                 /* And which mount options as well */
2106                 tmp = get_string_from_profile(fs_types, "default_mntopts",
2107                                               "acl,user_xattr");
2108                 edit_mntopts(tmp, &fs_param.s_default_mount_opts);
2109                 if (tmp)
2110                         free(tmp);
2111
2112                 for (cpp = fs_types; *cpp; cpp++) {
2113                         tmp = NULL;
2114                         profile_get_string(profile, "fs_types", *cpp,
2115                                            "features", "", &tmp);
2116                         if (tmp && *tmp)
2117                                 edit_feature(tmp, &fs_param.s_feature_compat);
2118                         if (tmp)
2119                                 free(tmp);
2120                 }
2121                 tmp = get_string_from_profile(fs_types, "default_features",
2122                                               "");
2123         }
2124         /* Mask off features which aren't supported by the Hurd */
2125         if (for_hurd(creator_os)) {
2126                 ext2fs_clear_feature_filetype(&fs_param);
2127                 ext2fs_clear_feature_huge_file(&fs_param);
2128                 ext2fs_clear_feature_metadata_csum(&fs_param);
2129                 ext2fs_clear_feature_ea_inode(&fs_param);
2130                 ext2fs_clear_feature_casefold(&fs_param);
2131         }
2132         if (!fs_features && tmp)
2133                 edit_feature(tmp, &fs_param.s_feature_compat);
2134         /*
2135          * Now all the defaults are incorporated in fs_param. Check the state
2136          * of orphan_file feature so that we know whether we should silently
2137          * disabled in case journal gets disabled.
2138          */
2139         if (ext2fs_has_feature_orphan_file(&fs_param))
2140                 default_orphan_file = 1;
2141         if (ext2fs_has_feature_csum_seed(&fs_param))
2142                 default_csum_seed = 1;
2143         if (fs_features)
2144                 edit_feature(fs_features, &fs_param.s_feature_compat);
2145         /* Silently disable orphan_file if user chose fs without journal */
2146         if (default_orphan_file && !ext2fs_has_feature_journal(&fs_param))
2147                 ext2fs_clear_feature_orphan_file(&fs_param);
2148         if (default_csum_seed && !ext2fs_has_feature_metadata_csum(&fs_param))
2149                 ext2fs_clear_feature_csum_seed(&fs_param);
2150         if (tmp)
2151                 free(tmp);
2152         (void) ext2fs_free_mem(&fs_features);
2153         /*
2154          * If the user specified features incompatible with the Hurd, complain
2155          */
2156         if (for_hurd(creator_os)) {
2157                 if (ext2fs_has_feature_filetype(&fs_param)) {
2158                         fprintf(stderr, "%s", _("The HURD does not support the "
2159                                                 "filetype feature.\n"));
2160                         exit(1);
2161                 }
2162                 if (ext2fs_has_feature_huge_file(&fs_param)) {
2163                         fprintf(stderr, "%s", _("The HURD does not support the "
2164                                                 "huge_file feature.\n"));
2165                         exit(1);
2166                 }
2167                 if (ext2fs_has_feature_metadata_csum(&fs_param)) {
2168                         fprintf(stderr, "%s", _("The HURD does not support the "
2169                                                 "metadata_csum feature.\n"));
2170                         exit(1);
2171                 }
2172                 if (ext2fs_has_feature_ea_inode(&fs_param)) {
2173                         fprintf(stderr, "%s", _("The HURD does not support the "
2174                                                 "ea_inode feature.\n"));
2175                         exit(1);
2176                 }
2177         }
2178
2179         /* Get the hardware sector sizes, if available */
2180         retval = ext2fs_get_device_sectsize(device_name, &lsector_size);
2181         if (retval) {
2182                 com_err(program_name, retval, "%s",
2183                         _("while trying to determine hardware sector size"));
2184                 exit(1);
2185         }
2186         retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size);
2187         if (retval) {
2188                 com_err(program_name, retval, "%s",
2189                         _("while trying to determine physical sector size"));
2190                 exit(1);
2191         }
2192
2193         tmp = getenv("MKE2FS_DEVICE_SECTSIZE");
2194         if (tmp != NULL)
2195                 lsector_size = atoi(tmp);
2196         tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE");
2197         if (tmp != NULL)
2198                 psector_size = atoi(tmp);
2199
2200         /* Older kernels may not have physical/logical distinction */
2201         if (!psector_size)
2202                 psector_size = lsector_size;
2203
2204         if (blocksize <= 0) {
2205                 use_bsize = get_int_from_profile(fs_types, "blocksize", 4096);
2206
2207                 if (use_bsize == -1) {
2208                         use_bsize = sys_page_size;
2209                         if (is_before_linux_ver(2, 6, 0) && use_bsize > 4096)
2210                                 use_bsize = 4096;
2211                 }
2212                 if (lsector_size && use_bsize < lsector_size)
2213                         use_bsize = lsector_size;
2214                 if ((blocksize < 0) && (use_bsize < (-blocksize)))
2215                         use_bsize = -blocksize;
2216                 blocksize = use_bsize;
2217                 fs_blocks_count /= (blocksize / 1024);
2218         } else {
2219                 if (blocksize < lsector_size) {                 /* Impossible */
2220                         com_err(program_name, EINVAL, "%s",
2221                                 _("while setting blocksize; too small "
2222                                   "for device\n"));
2223                         exit(1);
2224                 } else if ((blocksize < psector_size) &&
2225                            (psector_size <= sys_page_size)) {   /* Suboptimal */
2226                         fprintf(stderr, _("Warning: specified blocksize %d is "
2227                                 "less than device physical sectorsize %d\n"),
2228                                 blocksize, psector_size);
2229                 }
2230         }
2231
2232         fs_param.s_log_block_size =
2233                 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
2234
2235         /*
2236          * We now need to do a sanity check of fs_blocks_count for
2237          * 32-bit vs 64-bit block number support.
2238          */
2239         if ((fs_blocks_count > MAX_32_NUM) &&
2240             ext2fs_has_feature_64bit(&fs_param))
2241                 ext2fs_clear_feature_resize_inode(&fs_param);
2242         if ((fs_blocks_count > MAX_32_NUM) &&
2243             !ext2fs_has_feature_64bit(&fs_param) &&
2244             get_bool_from_profile(fs_types, "auto_64-bit_support", 0)) {
2245                 ext2fs_set_feature_64bit(&fs_param);
2246                 ext2fs_clear_feature_resize_inode(&fs_param);
2247         }
2248         if ((fs_blocks_count > MAX_32_NUM) &&
2249             !ext2fs_has_feature_64bit(&fs_param)) {
2250                 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2251                                   "too big to be expressed\n\t"
2252                                   "in 32 bits using a blocksize of %d.\n"),
2253                         program_name, (unsigned long long) fs_blocks_count,
2254                         device_name, EXT2_BLOCK_SIZE(&fs_param));
2255                 exit(1);
2256         }
2257         /*
2258          * Guard against group descriptor count overflowing... Mostly to avoid
2259          * strange results for absurdly large devices.  This is in log2:
2260          * (blocksize) * (bits per byte) * (maximum number of block groups)
2261          */
2262         if (fs_blocks_count >
2263             (1ULL << (EXT2_BLOCK_SIZE_BITS(&fs_param) + 3 + 32)) - 1) {
2264                 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2265                                   "too big to create\n\t"
2266                                   "a filesystem using a blocksize of %d.\n"),
2267                         program_name, (unsigned long long) fs_blocks_count,
2268                         device_name, EXT2_BLOCK_SIZE(&fs_param));
2269                 exit(1);
2270         }
2271
2272         ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2273
2274         if (ext2fs_has_feature_journal_dev(&fs_param)) {
2275                 int i;
2276
2277                 for (i=0; fs_types[i]; i++) {
2278                         free(fs_types[i]);
2279                         fs_types[i] = 0;
2280                 }
2281                 fs_types[0] = strdup("journal");
2282                 fs_types[1] = 0;
2283         }
2284
2285         if (verbose) {
2286                 fputs(_("fs_types for mke2fs.conf resolution: "), stdout);
2287                 print_str_list(fs_types);
2288         }
2289
2290         if (r_opt == EXT2_GOOD_OLD_REV &&
2291             (fs_param.s_feature_compat || fs_param.s_feature_incompat ||
2292              fs_param.s_feature_ro_compat)) {
2293                 fprintf(stderr, "%s", _("Filesystem features not supported "
2294                                         "with revision 0 filesystems\n"));
2295                 exit(1);
2296         }
2297
2298         if (s_opt > 0) {
2299                 if (r_opt == EXT2_GOOD_OLD_REV) {
2300                         fprintf(stderr, "%s",
2301                                 _("Sparse superblocks not supported "
2302                                   "with revision 0 filesystems\n"));
2303                         exit(1);
2304                 }
2305                 ext2fs_set_feature_sparse_super(&fs_param);
2306         } else if (s_opt == 0)
2307                 ext2fs_clear_feature_sparse_super(&fs_param);
2308
2309         if (journal_size != 0) {
2310                 if (r_opt == EXT2_GOOD_OLD_REV) {
2311                         fprintf(stderr, "%s", _("Journals not supported with "
2312                                                 "revision 0 filesystems\n"));
2313                         exit(1);
2314                 }
2315                 ext2fs_set_feature_journal(&fs_param);
2316         }
2317
2318         /* Get reserved_ratio from profile if not specified on cmd line. */
2319         if (reserved_ratio < 0.0) {
2320                 reserved_ratio = get_double_from_profile(
2321                                         fs_types, "reserved_ratio", 5.0);
2322                 if (reserved_ratio > 50 || reserved_ratio < 0) {
2323                         com_err(program_name, 0,
2324                                 _("invalid reserved blocks percent - %lf"),
2325                                 reserved_ratio);
2326                         exit(1);
2327                 }
2328         }
2329
2330         if (ext2fs_has_feature_journal_dev(&fs_param)) {
2331                 reserved_ratio = 0;
2332                 fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
2333                 fs_param.s_feature_compat = 0;
2334                 fs_param.s_feature_ro_compat &=
2335                                         EXT4_FEATURE_RO_COMPAT_METADATA_CSUM;
2336         }
2337
2338         /* Check the user's mkfs options for 64bit */
2339         if (ext2fs_has_feature_64bit(&fs_param) &&
2340             !ext2fs_has_feature_extents(&fs_param)) {
2341                 printf("%s", _("Extents MUST be enabled for a 64-bit "
2342                                "filesystem.  Pass -O extents to rectify.\n"));
2343                 exit(1);
2344         }
2345
2346         /* Set first meta blockgroup via an environment variable */
2347         /* (this is mostly for debugging purposes) */
2348         if (ext2fs_has_feature_meta_bg(&fs_param) &&
2349             (tmp = getenv("MKE2FS_FIRST_META_BG")))
2350                 fs_param.s_first_meta_bg = atoi(tmp);
2351         if (ext2fs_has_feature_bigalloc(&fs_param)) {
2352                 if (!cluster_size)
2353                         cluster_size = get_int_from_profile(fs_types,
2354                                                             "cluster_size",
2355                                                             blocksize*16);
2356                 fs_param.s_log_cluster_size =
2357                         int_log2(cluster_size >> EXT2_MIN_CLUSTER_LOG_SIZE);
2358                 if (fs_param.s_log_cluster_size &&
2359                     fs_param.s_log_cluster_size < fs_param.s_log_block_size) {
2360                         com_err(program_name, 0, "%s",
2361                                 _("The cluster size may not be "
2362                                   "smaller than the block size.\n"));
2363                         exit(1);
2364                 }
2365         } else if (cluster_size) {
2366                 com_err(program_name, 0, "%s",
2367                         _("specifying a cluster size requires the "
2368                           "bigalloc feature"));
2369                 exit(1);
2370         } else
2371                 fs_param.s_log_cluster_size = fs_param.s_log_block_size;
2372
2373         if (inode_ratio == 0) {
2374                 inode_ratio = get_int_from_profile(fs_types, "inode_ratio",
2375                                                    8192);
2376                 if (inode_ratio < blocksize)
2377                         inode_ratio = blocksize;
2378                 if (inode_ratio < EXT2_CLUSTER_SIZE(&fs_param))
2379                         inode_ratio = EXT2_CLUSTER_SIZE(&fs_param);
2380         }
2381
2382 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
2383         retval = get_device_geometry(device_name, blocksize,
2384                                      psector_size, &dev_param);
2385         if (retval < 0) {
2386                 fprintf(stderr,
2387                         _("warning: Unable to get device geometry for %s\n"),
2388                         device_name);
2389         } else {
2390                 /* setting stripe/stride to blocksize is pointless */
2391                 if (dev_param.min_io > (unsigned) blocksize)
2392                         fs_param.s_raid_stride = dev_param.min_io / blocksize;
2393                 if (dev_param.opt_io > (unsigned) blocksize) {
2394                         fs_param.s_raid_stripe_width =
2395                                                 dev_param.opt_io / blocksize;
2396                 }
2397
2398                 if (dev_param.alignment_offset) {
2399                         printf(_("%s alignment is offset by %lu bytes.\n"),
2400                                device_name, dev_param.alignment_offset);
2401                         printf(_("This may result in very poor performance, "
2402                                   "(re)-partitioning suggested.\n"));
2403                 }
2404
2405                 if (dev_param.dax && blocksize != sys_page_size) {
2406                         fprintf(stderr,
2407                                 _("%s is capable of DAX but current block size "
2408                                   "%u is different from system page size %u so "
2409                                   "filesystem will not support DAX.\n"),
2410                                 device_name, blocksize, sys_page_size);
2411                 }
2412         }
2413 #endif
2414
2415         num_backups = get_int_from_profile(fs_types, "num_backup_sb", 2);
2416
2417         blocksize = EXT2_BLOCK_SIZE(&fs_param);
2418
2419         /*
2420          * Initialize s_desc_size so that the parse_extended_opts()
2421          * can correctly handle "-E resize=NNN" if the 64-bit option
2422          * is set.
2423          */
2424         if (ext2fs_has_feature_64bit(&fs_param))
2425                 fs_param.s_desc_size = EXT2_MIN_DESC_SIZE_64BIT;
2426
2427         /* This check should happen beyond the last assignment to blocksize */
2428         if (blocksize > sys_page_size) {
2429                 if (!force) {
2430                         com_err(program_name, 0,
2431                                 _("%d-byte blocks too big for system (max %d)"),
2432                                 blocksize, sys_page_size);
2433                         proceed_question(proceed_delay);
2434                 }
2435                 fprintf(stderr, _("Warning: %d-byte blocks too big for system "
2436                                   "(max %d), forced to continue\n"),
2437                         blocksize, sys_page_size);
2438         }
2439
2440         /* Metadata checksumming wasn't totally stable before 3.18. */
2441         if (is_before_linux_ver(3, 18, 0) &&
2442             ext2fs_has_feature_metadata_csum(&fs_param))
2443                 fprintf(stderr, _("Suggestion: Use Linux kernel >= 3.18 for "
2444                         "improved stability of the metadata and journal "
2445                         "checksum features.\n"));
2446
2447         /*
2448          * On newer kernels we do have lazy_itable_init support. So pick the
2449          * right default in case ext4 module is not loaded.
2450          */
2451         if (is_before_linux_ver(2, 6, 37))
2452                 lazy_itable_init = 0;
2453         else
2454                 lazy_itable_init = 1;
2455
2456         if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0)
2457                 lazy_itable_init = 1;
2458
2459         lazy_itable_init = get_bool_from_profile(fs_types,
2460                                                  "lazy_itable_init",
2461                                                  lazy_itable_init);
2462         discard = get_bool_from_profile(fs_types, "discard" , discard);
2463         journal_flags |= get_bool_from_profile(fs_types,
2464                                                "lazy_journal_init", 0) ?
2465                                                EXT2_MKJOURNAL_LAZYINIT : 0;
2466         journal_flags |= EXT2_MKJOURNAL_NO_MNT_CHECK;
2467
2468         if (!journal_location_string)
2469                 journal_location_string = get_string_from_profile(fs_types,
2470                                                 "journal_location", "");
2471         if ((journal_location == ~0ULL) && journal_location_string &&
2472             *journal_location_string)
2473                 journal_location = parse_num_blocks2(journal_location_string,
2474                                                 fs_param.s_log_block_size);
2475         free(journal_location_string);
2476
2477         packed_meta_blocks = get_bool_from_profile(fs_types,
2478                                                    "packed_meta_blocks", 0);
2479         if (packed_meta_blocks)
2480                 journal_location = 0;
2481
2482         if (ext2fs_has_feature_casefold(&fs_param)) {
2483                 char *ef, *en = get_string_from_profile(fs_types,
2484                                                         "encoding", "utf8");
2485                 int encoding = e2p_str2encoding(en);
2486
2487                 if (encoding < 0) {
2488                         com_err(program_name, 0,
2489                                 _("Unknown filename encoding from profile: %s"),
2490                                 en);
2491                         exit(1);
2492                 }
2493                 free(en);
2494                 fs_param.s_encoding = encoding;
2495                 ef = get_string_from_profile(fs_types, "encoding_flags", NULL);
2496                 if (ef) {
2497                         if (e2p_str2encoding_flags(encoding, ef,
2498                                         &fs_param.s_encoding_flags) < 0) {
2499                                 com_err(program_name, 0,
2500                         _("Unknown encoding flags from profile: %s"), ef);
2501                                 exit(1);
2502                         }
2503                         free(ef);
2504                 } else
2505                         fs_param.s_encoding_flags =
2506                                 e2p_get_encoding_flags(encoding);
2507         }
2508
2509         /* Get options from profile */
2510         for (cpp = fs_types; *cpp; cpp++) {
2511                 tmp = NULL;
2512                 profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp);
2513                         if (tmp && *tmp)
2514                                 parse_extended_opts(&fs_param, tmp);
2515                         free(tmp);
2516         }
2517
2518         if (extended_opts)
2519                 parse_extended_opts(&fs_param, extended_opts);
2520
2521         if (explicit_fssize == 0 && offset > 0) {
2522                 fs_blocks_count -= offset / EXT2_BLOCK_SIZE(&fs_param);
2523                 ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2524                 fprintf(stderr,
2525                         _("\nWarning: offset specified without an "
2526                           "explicit file system size.\n"
2527                           "Creating a file system with %llu blocks "
2528                           "but this might\n"
2529                           "not be what you want.\n\n"),
2530                         (unsigned long long) fs_blocks_count);
2531         }
2532
2533         if (quotatype_bits & QUOTA_PRJ_BIT)
2534                 ext2fs_set_feature_project(&fs_param);
2535
2536         if (ext2fs_has_feature_project(&fs_param)) {
2537                 quotatype_bits |= QUOTA_PRJ_BIT;
2538                 if (inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2539                         com_err(program_name, 0,
2540                                 _("%d byte inodes are too small for "
2541                                   "project quota"),
2542                                 inode_size);
2543                         exit(1);
2544                 }
2545                 if (inode_size == 0) {
2546                         inode_size = get_int_from_profile(fs_types,
2547                                                           "inode_size", 0);
2548                         if (inode_size <= EXT2_GOOD_OLD_INODE_SIZE*2)
2549                                 inode_size = EXT2_GOOD_OLD_INODE_SIZE*2;
2550                 }
2551         }
2552
2553         /* Don't allow user to set both metadata_csum and uninit_bg bits. */
2554         if (ext2fs_has_feature_metadata_csum(&fs_param) &&
2555             ext2fs_has_feature_gdt_csum(&fs_param))
2556                 ext2fs_clear_feature_gdt_csum(&fs_param);
2557
2558         /* Can't support bigalloc feature without extents feature */
2559         if (ext2fs_has_feature_bigalloc(&fs_param) &&
2560             !ext2fs_has_feature_extents(&fs_param)) {
2561                 com_err(program_name, 0, "%s",
2562                         _("Can't support bigalloc feature without "
2563                           "extents feature"));
2564                 exit(1);
2565         }
2566
2567         if (ext2fs_has_feature_meta_bg(&fs_param) &&
2568             ext2fs_has_feature_resize_inode(&fs_param)) {
2569                 fprintf(stderr, "%s", _("The resize_inode and meta_bg "
2570                                         "features are not compatible.\n"
2571                                         "They can not be both enabled "
2572                                         "simultaneously.\n"));
2573                 exit(1);
2574         }
2575
2576         if (!quiet && ext2fs_has_feature_bigalloc(&fs_param) &&
2577             EXT2_CLUSTER_SIZE(&fs_param) > 16 * EXT2_BLOCK_SIZE(&fs_param))
2578                 fprintf(stderr, "%s", _("\nWarning: bigalloc file systems "
2579                                 "with a cluster size greater than\n"
2580                                 "16 times the block size is considered "
2581                                 "experimental\n"));
2582
2583         /*
2584          * Since sparse_super is the default, we would only have a problem
2585          * here if it was explicitly disabled.
2586          */
2587         if (ext2fs_has_feature_resize_inode(&fs_param) &&
2588             !ext2fs_has_feature_sparse_super(&fs_param)) {
2589                 com_err(program_name, 0, "%s",
2590                         _("reserved online resize blocks not supported "
2591                           "on non-sparse filesystem"));
2592                 exit(1);
2593         }
2594
2595         if (fs_param.s_blocks_per_group) {
2596                 if (fs_param.s_blocks_per_group < 256 ||
2597                     fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) {
2598                         com_err(program_name, 0, "%s",
2599                                 _("blocks per group count out of range"));
2600                         exit(1);
2601                 }
2602         }
2603
2604         /*
2605          * If the bigalloc feature is enabled, then the -g option will
2606          * specify the number of clusters per group.
2607          */
2608         if (ext2fs_has_feature_bigalloc(&fs_param)) {
2609                 fs_param.s_clusters_per_group = fs_param.s_blocks_per_group;
2610                 fs_param.s_blocks_per_group = 0;
2611         }
2612
2613         if (inode_size == 0)
2614                 inode_size = get_int_from_profile(fs_types, "inode_size", 0);
2615         if (!flex_bg_size && ext2fs_has_feature_flex_bg(&fs_param))
2616                 flex_bg_size = get_uint_from_profile(fs_types,
2617                                                      "flex_bg_size", 16);
2618         if (flex_bg_size) {
2619                 if (!ext2fs_has_feature_flex_bg(&fs_param)) {
2620                         com_err(program_name, 0, "%s",
2621                                 _("Flex_bg feature not enabled, so "
2622                                   "flex_bg size may not be specified"));
2623                         exit(1);
2624                 }
2625                 fs_param.s_log_groups_per_flex = int_log2(flex_bg_size);
2626         }
2627
2628         if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) {
2629                 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
2630                     inode_size > EXT2_BLOCK_SIZE(&fs_param) ||
2631                     inode_size & (inode_size - 1)) {
2632                         com_err(program_name, 0,
2633                                 _("invalid inode size %d (min %d/max %d)"),
2634                                 inode_size, EXT2_GOOD_OLD_INODE_SIZE,
2635                                 blocksize);
2636                         exit(1);
2637                 }
2638                 fs_param.s_inode_size = inode_size;
2639         }
2640
2641         /*
2642          * If inode size is 128 and inline data is enabled, we need
2643          * to notify users that inline data will never be useful.
2644          */
2645         if (ext2fs_has_feature_inline_data(&fs_param) &&
2646             fs_param.s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2647                 com_err(program_name, 0,
2648                         _("%d byte inodes are too small for inline data; "
2649                           "specify larger size"),
2650                         fs_param.s_inode_size);
2651                 exit(1);
2652         }
2653
2654         /*
2655          * Warn the user that filesystems with 128-byte inodes will
2656          * not work properly beyond 2038.  This can be suppressed via
2657          * a boolean in the mke2fs.conf file, and we will disable this
2658          * warning for file systems created for the GNU Hurd.
2659          */
2660         if (inode_size == EXT2_GOOD_OLD_INODE_SIZE &&
2661             get_bool_from_profile(fs_types, "warn_y2038_dates", 1))
2662                 printf(
2663 _("128-byte inodes cannot handle dates beyond 2038 and are deprecated\n"));
2664
2665         /* Make sure number of inodes specified will fit in 32 bits */
2666         if (num_inodes == 0) {
2667                 unsigned long long n;
2668                 n = ext2fs_blocks_count(&fs_param) * blocksize / inode_ratio;
2669                 if (n > MAX_32_NUM) {
2670                         if (ext2fs_has_feature_64bit(&fs_param))
2671                                 num_inodes = MAX_32_NUM;
2672                         else {
2673                                 com_err(program_name, 0,
2674                                         _("too many inodes (%llu), raise "
2675                                           "inode ratio?"),
2676                                         (unsigned long long) n);
2677                                 exit(1);
2678                         }
2679                 }
2680         } else if (num_inodes > MAX_32_NUM) {
2681                 com_err(program_name, 0,
2682                         _("too many inodes (%llu), specify < 2^32 inodes"),
2683                         (unsigned long long) num_inodes);
2684                 exit(1);
2685         }
2686         /*
2687          * Calculate number of inodes based on the inode ratio
2688          */
2689         fs_param.s_inodes_count = num_inodes ? num_inodes :
2690                 (ext2fs_blocks_count(&fs_param) * blocksize) / inode_ratio;
2691
2692         if ((((unsigned long long)fs_param.s_inodes_count) *
2693              (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >=
2694             ((ext2fs_blocks_count(&fs_param)) *
2695              EXT2_BLOCK_SIZE(&fs_param))) {
2696                 com_err(program_name, 0, _("inode_size (%u) * inodes_count "
2697                                           "(%u) too big for a\n\t"
2698                                           "filesystem with %llu blocks, "
2699                                           "specify higher inode_ratio (-i)\n\t"
2700                                           "or lower inode count (-N).\n"),
2701                         inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE,
2702                         fs_param.s_inodes_count,
2703                         (unsigned long long) ext2fs_blocks_count(&fs_param));
2704                 exit(1);
2705         }
2706
2707         /*
2708          * Calculate number of blocks to reserve
2709          */
2710         ext2fs_r_blocks_count_set(&fs_param, reserved_ratio *
2711                                   ext2fs_blocks_count(&fs_param) / 100.0);
2712
2713         if (ext2fs_has_feature_sparse_super2(&fs_param)) {
2714                 if (num_backups >= 1)
2715                         fs_param.s_backup_bgs[0] = 1;
2716                 if (num_backups >= 2)
2717                         fs_param.s_backup_bgs[1] = ~0;
2718         }
2719
2720         free(fs_type);
2721         free(usage_types);
2722
2723         /* The isatty() test is so we don't break existing scripts */
2724         flags = CREATE_FILE;
2725         if (isatty(0) && isatty(1) && !offset)
2726                 flags |= CHECK_FS_EXIST;
2727         if (!quiet)
2728                 flags |= VERBOSE_CREATE;
2729         if (!explicit_fssize)
2730                 flags |= NO_SIZE;
2731         if (!check_plausibility(device_name, flags, &is_device) && !force)
2732                 proceed_question(proceed_delay);
2733 }
2734
2735 static int should_do_undo(const char *name)
2736 {
2737         errcode_t retval;
2738         io_channel channel;
2739         __u16   s_magic;
2740         struct ext2_super_block super;
2741         io_manager manager = default_io_manager;
2742         int csum_flag, force_undo;
2743
2744         csum_flag = ext2fs_has_feature_metadata_csum(&fs_param) ||
2745                     ext2fs_has_feature_gdt_csum(&fs_param);
2746         force_undo = get_int_from_profile(fs_types, "force_undo", 0);
2747         if (!force_undo && (!csum_flag || !lazy_itable_init))
2748                 return 0;
2749
2750         retval = manager->open(name, IO_FLAG_EXCLUSIVE,  &channel);
2751         if (retval) {
2752                 /*
2753                  * We don't handle error cases instead we
2754                  * declare that the file system doesn't exist
2755                  * and let the rest of mke2fs take care of
2756                  * error
2757                  */
2758                 retval = 0;
2759                 goto open_err_out;
2760         }
2761
2762         io_channel_set_blksize(channel, SUPERBLOCK_OFFSET);
2763         retval = io_channel_read_blk64(channel, 1, -SUPERBLOCK_SIZE, &super);
2764         if (retval) {
2765                 retval = 0;
2766                 goto err_out;
2767         }
2768
2769 #if defined(WORDS_BIGENDIAN)
2770         s_magic = ext2fs_swab16(super.s_magic);
2771 #else
2772         s_magic = super.s_magic;
2773 #endif
2774
2775         if (s_magic == EXT2_SUPER_MAGIC)
2776                 retval = 1;
2777
2778 err_out:
2779         io_channel_close(channel);
2780
2781 open_err_out:
2782
2783         return retval;
2784 }
2785
2786 static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr)
2787 {
2788         errcode_t retval = ENOMEM;
2789         char *tdb_dir = NULL, *tdb_file = NULL;
2790         char *dev_name, *tmp_name;
2791         int free_tdb_dir = 0;
2792
2793         /* (re)open a specific undo file */
2794         if (undo_file && undo_file[0] != 0) {
2795                 retval = set_undo_io_backing_manager(*io_ptr);
2796                 if (retval)
2797                         goto err;
2798                 *io_ptr = undo_io_manager;
2799                 retval = set_undo_io_backup_file(undo_file);
2800                 if (retval)
2801                         goto err;
2802                 printf(_("Overwriting existing filesystem; this can be undone "
2803                          "using the command:\n"
2804                          "    e2undo %s %s\n\n"), undo_file, name);
2805                 return retval;
2806         }
2807
2808         /*
2809          * Configuration via a conf file would be
2810          * nice
2811          */
2812         tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
2813         if (!tdb_dir) {
2814                 profile_get_string(profile, "defaults",
2815                                    "undo_dir", 0, "/var/lib/e2fsprogs",
2816                                    &tdb_dir);
2817                 free_tdb_dir = 1;
2818         }
2819
2820         if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
2821             access(tdb_dir, W_OK)) {
2822                 if (free_tdb_dir)
2823                         free(tdb_dir);
2824                 return 0;
2825         }
2826
2827         tmp_name = strdup(name);
2828         if (!tmp_name)
2829                 goto errout;
2830         dev_name = basename(tmp_name);
2831         tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
2832         if (!tdb_file) {
2833                 free(tmp_name);
2834                 goto errout;
2835         }
2836         sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, dev_name);
2837         free(tmp_name);
2838
2839         if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
2840                 retval = errno;
2841                 com_err(program_name, retval,
2842                         _("while trying to delete %s"), tdb_file);
2843                 goto errout;
2844         }
2845
2846         retval = set_undo_io_backing_manager(*io_ptr);
2847         if (retval)
2848                 goto errout;
2849         *io_ptr = undo_io_manager;
2850         retval = set_undo_io_backup_file(tdb_file);
2851         if (retval)
2852                 goto errout;
2853         printf(_("Overwriting existing filesystem; this can be undone "
2854                  "using the command:\n"
2855                  "    e2undo %s %s\n\n"), tdb_file, name);
2856
2857         if (free_tdb_dir)
2858                 free(tdb_dir);
2859         free(tdb_file);
2860         return 0;
2861
2862 errout:
2863         if (free_tdb_dir)
2864                 free(tdb_dir);
2865         free(tdb_file);
2866 err:
2867         com_err(program_name, retval, "%s",
2868                 _("while trying to setup undo file\n"));
2869         return retval;
2870 }
2871
2872 static int mke2fs_discard_device(ext2_filsys fs)
2873 {
2874         struct ext2fs_numeric_progress_struct progress;
2875         blk64_t blocks = ext2fs_blocks_count(fs->super);
2876         blk64_t count = DISCARD_STEP_MB;
2877         blk64_t cur = 0;
2878         int retval = 0;
2879
2880         /*
2881          * Let's try if discard really works on the device, so
2882          * we do not print numeric progress resulting in failure
2883          * afterwards.
2884          */
2885         retval = io_channel_discard(fs->io, 0, 1);
2886         if (retval)
2887                 return retval;
2888
2889         count *= (1024 * 1024);
2890         count /= fs->blocksize;
2891
2892         ext2fs_numeric_progress_init(fs, &progress,
2893                                      _("Discarding device blocks: "),
2894                                      blocks);
2895         while (cur < blocks) {
2896                 ext2fs_numeric_progress_update(fs, &progress, cur);
2897
2898                 if (cur + count > blocks)
2899                         count = blocks - cur;
2900
2901                 retval = io_channel_discard(fs->io, cur, count);
2902                 if (retval)
2903                         break;
2904                 cur += count;
2905         }
2906
2907         if (retval) {
2908                 ext2fs_numeric_progress_close(fs, &progress,
2909                                       _("failed - "));
2910                 if (!quiet)
2911                         printf("%s\n",error_message(retval));
2912         } else
2913                 ext2fs_numeric_progress_close(fs, &progress,
2914                                       _("done                            \n"));
2915
2916         return retval;
2917 }
2918
2919 static void fix_cluster_bg_counts(ext2_filsys fs)
2920 {
2921         blk64_t         block, num_blocks, last_block, next;
2922         blk64_t         tot_free = 0;
2923         errcode_t       retval;
2924         dgrp_t          group = 0;
2925         int             grp_free = 0;
2926
2927         num_blocks = ext2fs_blocks_count(fs->super);
2928         last_block = ext2fs_group_last_block2(fs, group);
2929         block = fs->super->s_first_data_block;
2930         while (block < num_blocks) {
2931                 retval = ext2fs_find_first_zero_block_bitmap2(fs->block_map,
2932                                                 block, last_block, &next);
2933                 if (retval == 0)
2934                         block = next;
2935                 else {
2936                         block = last_block + 1;
2937                         goto next_bg;
2938                 }
2939
2940                 retval = ext2fs_find_first_set_block_bitmap2(fs->block_map,
2941                                                 block, last_block, &next);
2942                 if (retval)
2943                         next = last_block + 1;
2944                 grp_free += EXT2FS_NUM_B2C(fs, next - block);
2945                 tot_free += next - block;
2946                 block = next;
2947
2948                 if (block > last_block) {
2949                 next_bg:
2950                         ext2fs_bg_free_blocks_count_set(fs, group, grp_free);
2951                         ext2fs_group_desc_csum_set(fs, group);
2952                         grp_free = 0;
2953                         group++;
2954                         last_block = ext2fs_group_last_block2(fs, group);
2955                 }
2956         }
2957         ext2fs_free_blocks_count_set(fs->super, tot_free);
2958 }
2959
2960 static int create_quota_inodes(ext2_filsys fs)
2961 {
2962         quota_ctx_t qctx;
2963         errcode_t retval;
2964
2965         retval = quota_init_context(&qctx, fs, quotatype_bits);
2966         if (retval) {
2967                 com_err(program_name, retval,
2968                         _("while initializing quota context"));
2969                 exit(1);
2970         }
2971         quota_compute_usage(qctx);
2972         retval = quota_write_inode(qctx, quotatype_bits);
2973         if (retval) {
2974                 com_err(program_name, retval,
2975                         _("while writing quota inodes"));
2976                 exit(1);
2977         }
2978         quota_release_context(&qctx);
2979
2980         return 0;
2981 }
2982
2983 static errcode_t set_error_behavior(ext2_filsys fs)
2984 {
2985         char    *arg = NULL;
2986         short   errors = fs->super->s_errors;
2987
2988         arg = get_string_from_profile(fs_types, "errors", NULL);
2989         if (arg == NULL)
2990                 goto try_user;
2991
2992         if (strcmp(arg, "continue") == 0)
2993                 errors = EXT2_ERRORS_CONTINUE;
2994         else if (strcmp(arg, "remount-ro") == 0)
2995                 errors = EXT2_ERRORS_RO;
2996         else if (strcmp(arg, "panic") == 0)
2997                 errors = EXT2_ERRORS_PANIC;
2998         else {
2999                 com_err(program_name, 0,
3000                         _("bad error behavior in profile - %s"),
3001                         arg);
3002                 free(arg);
3003                 return EXT2_ET_INVALID_ARGUMENT;
3004         }
3005         free(arg);
3006
3007 try_user:
3008         if (errors_behavior)
3009                 errors = errors_behavior;
3010
3011         fs->super->s_errors = errors;
3012         return 0;
3013 }
3014
3015 int main (int argc, char *argv[])
3016 {
3017         errcode_t       retval = 0;
3018         ext2_filsys     fs;
3019         badblocks_list  bb_list = 0;
3020         badblocks_iterate       bb_iter;
3021         blk_t           blk;
3022         struct ext2fs_journal_params    jparams = {0};
3023         unsigned int    i, checkinterval;
3024         int             max_mnt_count;
3025         int             val, hash_alg;
3026         int             flags;
3027         int             old_bitmaps;
3028         io_manager      io_ptr;
3029         char            opt_string[40];
3030         char            *hash_alg_str;
3031         int             itable_zeroed = 0;
3032         blk64_t         overhead;
3033
3034 #ifdef ENABLE_NLS
3035         setlocale(LC_MESSAGES, "");
3036         setlocale(LC_CTYPE, "");
3037         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
3038         textdomain(NLS_CAT_NAME);
3039         set_com_err_gettext(gettext);
3040 #endif
3041         PRS(argc, argv);
3042
3043 #ifdef CONFIG_TESTIO_DEBUG
3044         if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
3045                 io_ptr = test_io_manager;
3046                 test_io_backing_manager = default_io_manager;
3047         } else
3048 #endif
3049                 io_ptr = default_io_manager;
3050
3051         if (undo_file != NULL || should_do_undo(device_name)) {
3052                 retval = mke2fs_setup_tdb(device_name, &io_ptr);
3053                 if (retval)
3054                         exit(1);
3055         }
3056
3057         /*
3058          * Initialize the superblock....
3059          */
3060         flags = EXT2_FLAG_EXCLUSIVE;
3061         if (direct_io)
3062                 flags |= EXT2_FLAG_DIRECT_IO;
3063         profile_get_boolean(profile, "options", "old_bitmaps", 0, 0,
3064                             &old_bitmaps);
3065         if (!old_bitmaps)
3066                 flags |= EXT2_FLAG_64BITS;
3067         /*
3068          * By default, we print how many inode tables or block groups
3069          * or whatever we've written so far.  The quiet flag disables
3070          * this, along with a lot of other output.
3071          */
3072         if (!quiet)
3073                 flags |= EXT2_FLAG_PRINT_PROGRESS;
3074         if (android_sparse_file) {
3075                 char *android_sparse_params = malloc(strlen(device_name) + 48);
3076
3077                 if (!android_sparse_params) {
3078                         com_err(program_name, ENOMEM, "%s",
3079                                 _("in malloc for android_sparse_params"));
3080                         exit(1);
3081                 }
3082                 sprintf(android_sparse_params, "(%s):%u:%u",
3083                          device_name, fs_param.s_blocks_count,
3084                          1024 << fs_param.s_log_block_size);
3085                 retval = ext2fs_initialize(android_sparse_params, flags,
3086                                            &fs_param, sparse_io_manager, &fs);
3087                 free(android_sparse_params);
3088         } else
3089                 retval = ext2fs_initialize(device_name, flags, &fs_param,
3090                                            io_ptr, &fs);
3091         if (retval) {
3092                 com_err(device_name, retval, "%s",
3093                         _("while setting up superblock"));
3094                 exit(1);
3095         }
3096         fs->progress_ops = &ext2fs_numeric_progress_ops;
3097
3098         /* Set the error behavior */
3099         retval = set_error_behavior(fs);
3100         if (retval)
3101                 usage();
3102
3103         /* Check the user's mkfs options for metadata checksumming */
3104         if (!quiet &&
3105             !ext2fs_has_feature_journal_dev(fs->super) &&
3106             ext2fs_has_feature_metadata_csum(fs->super)) {
3107                 if (!ext2fs_has_feature_extents(fs->super))
3108                         printf("%s",
3109                                _("Extents are not enabled.  The file extent "
3110                                  "tree can be checksummed, whereas block maps "
3111                                  "cannot.  Not enabling extents reduces the "
3112                                  "coverage of metadata checksumming.  "
3113                                  "Pass -O extents to rectify.\n"));
3114                 if (!ext2fs_has_feature_64bit(fs->super))
3115                         printf("%s",
3116                                _("64-bit filesystem support is not enabled.  "
3117                                  "The larger fields afforded by this feature "
3118                                  "enable full-strength checksumming.  "
3119                                  "Pass -O 64bit to rectify.\n"));
3120         }
3121
3122         if (ext2fs_has_feature_csum_seed(fs->super) &&
3123             !ext2fs_has_feature_metadata_csum(fs->super)) {
3124                 printf("%s", _("The metadata_csum_seed feature "
3125                                "requires the metadata_csum feature.\n"));
3126                 exit(1);
3127         }
3128
3129         /* Calculate journal blocks */
3130         if (!journal_device && ((journal_size) ||
3131             ext2fs_has_feature_journal(&fs_param)))
3132                 figure_journal_size(&jparams, journal_size, journal_fc_size, fs);
3133
3134         sprintf(opt_string, "tdb_data_size=%d", fs->blocksize <= 4096 ?
3135                 32768 : fs->blocksize * 8);
3136         io_channel_set_options(fs->io, opt_string);
3137         if (offset) {
3138                 sprintf(opt_string, "offset=%llu", (unsigned long long) offset);
3139                 io_channel_set_options(fs->io, opt_string);
3140         }
3141
3142         if (assume_storage_prezeroed) {
3143                 if (verbose)
3144                         printf("%s",
3145                                _("Assuming the storage device is prezeroed "
3146                                "- skipping inode table and journal wipe\n"));
3147
3148                 lazy_itable_init = 1;
3149                 itable_zeroed = 1;
3150                 zero_hugefile = 0;
3151                 journal_flags |= EXT2_MKJOURNAL_LAZYINIT;
3152         }
3153
3154         /* Can't undo discard ... */
3155         if (!noaction && discard && dev_size && (io_ptr != undo_io_manager)) {
3156                 retval = mke2fs_discard_device(fs);
3157                 if (!retval && io_channel_discard_zeroes_data(fs->io)) {
3158                         if (verbose)
3159                                 printf("%s",
3160                                        _("Discard succeeded and will return "
3161                                          "0s - skipping inode table wipe\n"));
3162                         lazy_itable_init = 1;
3163                         itable_zeroed = 1;
3164                         zero_hugefile = 0;
3165                 }
3166         }
3167
3168         if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS)
3169                 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
3170
3171         if (ext2fs_has_feature_flex_bg(&fs_param) ||
3172             ext2fs_has_feature_huge_file(&fs_param) ||
3173             ext2fs_has_feature_gdt_csum(&fs_param) ||
3174             ext2fs_has_feature_dir_nlink(&fs_param) ||
3175             ext2fs_has_feature_metadata_csum(&fs_param) ||
3176             ext2fs_has_feature_extra_isize(&fs_param))
3177                 fs->super->s_kbytes_written = 1;
3178
3179         /*
3180          * Wipe out the old on-disk superblock
3181          */
3182         if (!noaction)
3183                 zap_sector(fs, 2, 6);
3184
3185         /*
3186          * Parse or generate a UUID for the filesystem
3187          */
3188         if (fs_uuid) {
3189                 if ((strcasecmp(fs_uuid, "null") == 0) ||
3190                     (strcasecmp(fs_uuid, "clear") == 0)) {
3191                         uuid_clear(fs->super->s_uuid);
3192                 } else if (strcasecmp(fs_uuid, "time") == 0) {
3193                         uuid_generate_time(fs->super->s_uuid);
3194                 } else if (strcasecmp(fs_uuid, "random") == 0) {
3195                         uuid_generate(fs->super->s_uuid);
3196                 } else if (uuid_parse(fs_uuid, fs->super->s_uuid) != 0) {
3197                         com_err(device_name, 0, "could not parse UUID: %s\n",
3198                                 fs_uuid);
3199                         exit(1);
3200                 }
3201         } else
3202                 uuid_generate(fs->super->s_uuid);
3203
3204         if (ext2fs_has_feature_csum_seed(fs->super))
3205                 fs->super->s_checksum_seed = ext2fs_crc32c_le(~0,
3206                                 fs->super->s_uuid, sizeof(fs->super->s_uuid));
3207
3208         ext2fs_init_csum_seed(fs);
3209
3210         /*
3211          * Initialize the directory index variables
3212          */
3213         hash_alg_str = get_string_from_profile(fs_types, "hash_alg",
3214                                                "half_md4");
3215         hash_alg = e2p_string2hash(hash_alg_str);
3216         free(hash_alg_str);
3217         fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg :
3218                 EXT2_HASH_HALF_MD4;
3219
3220         if (memcmp(fs_param.s_hash_seed, zero_buf,
3221                 sizeof(fs_param.s_hash_seed)) != 0) {
3222                 memcpy(fs->super->s_hash_seed, fs_param.s_hash_seed,
3223                         sizeof(fs->super->s_hash_seed));
3224         } else
3225                 uuid_generate((unsigned char *) fs->super->s_hash_seed);
3226
3227         /*
3228          * Periodic checks can be enabled/disabled via config file.
3229          * Note we override the kernel include file's idea of what the default
3230          * check interval (never) should be.  It's a good idea to check at
3231          * least *occasionally*, specially since servers will never rarely get
3232          * to reboot, since Linux is so robust these days.  :-)
3233          *
3234          * 180 days (six months) seems like a good value.
3235          */
3236 #ifdef EXT2_DFL_CHECKINTERVAL
3237 #undef EXT2_DFL_CHECKINTERVAL
3238 #endif
3239 #define EXT2_DFL_CHECKINTERVAL (86400L * 180L)
3240
3241         if (get_bool_from_profile(fs_types, "enable_periodic_fsck", 0)) {
3242                 fs->super->s_checkinterval = EXT2_DFL_CHECKINTERVAL;
3243                 fs->super->s_max_mnt_count = EXT2_DFL_MAX_MNT_COUNT;
3244                 /*
3245                  * Add "jitter" to the superblock's check interval so that we
3246                  * don't check all the filesystems at the same time.  We use a
3247                  * kludgy hack of using the UUID to derive a random jitter value
3248                  */
3249                 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++)
3250                         val += fs->super->s_uuid[i];
3251                 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
3252         } else
3253                 fs->super->s_max_mnt_count = -1;
3254
3255         /*
3256          * Override the creator OS, if applicable
3257          */
3258         if (creator_os && !set_os(fs->super, creator_os)) {
3259                 com_err (program_name, 0, _("unknown os - %s"), creator_os);
3260                 exit(1);
3261         }
3262
3263         /*
3264          * For the Hurd, we will turn off filetype since it doesn't
3265          * support it.
3266          */
3267         if (fs->super->s_creator_os == EXT2_OS_HURD)
3268                 ext2fs_clear_feature_filetype(fs->super);
3269
3270         /*
3271          * Set the volume label...
3272          */
3273         if (volume_label) {
3274                 memset(fs->super->s_volume_name, 0,
3275                        sizeof(fs->super->s_volume_name));
3276                 strncpy((char *) fs->super->s_volume_name, volume_label,
3277                         sizeof(fs->super->s_volume_name));
3278         }
3279
3280         /*
3281          * Set the last mount directory
3282          */
3283         if (mount_dir) {
3284                 memset(fs->super->s_last_mounted, 0,
3285                        sizeof(fs->super->s_last_mounted));
3286                 strncpy((char *) fs->super->s_last_mounted, mount_dir,
3287                         sizeof(fs->super->s_last_mounted));
3288         }
3289
3290         /* Set current default encryption algorithms for data and
3291          * filename encryption */
3292         if (ext2fs_has_feature_encrypt(fs->super)) {
3293                 fs->super->s_encrypt_algos[0] =
3294                         EXT4_ENCRYPTION_MODE_AES_256_XTS;
3295                 fs->super->s_encrypt_algos[1] =
3296                         EXT4_ENCRYPTION_MODE_AES_256_CTS;
3297         }
3298
3299         if (ext2fs_has_feature_metadata_csum(fs->super))
3300                 fs->super->s_checksum_type = EXT2_CRC32C_CHKSUM;
3301
3302         if (!quiet || noaction)
3303                 show_stats(fs);
3304
3305         if (noaction)
3306                 exit(0);
3307
3308         if (ext2fs_has_feature_journal_dev(fs->super)) {
3309                 create_journal_dev(fs);
3310                 printf("\n");
3311                 exit(ext2fs_close_free(&fs) ? 1 : 0);
3312         }
3313
3314         if (bad_blocks_filename)
3315                 read_bb_file(fs, &bb_list, bad_blocks_filename);
3316         if (cflag)
3317                 test_disk(fs, &bb_list);
3318         handle_bad_blocks(fs, bb_list);
3319
3320         fs->stride = fs_stride = fs->super->s_raid_stride;
3321         if (!quiet)
3322                 printf("%s", _("Allocating group tables: "));
3323         if (ext2fs_has_feature_flex_bg(fs->super) &&
3324             packed_meta_blocks)
3325                 retval = packed_allocate_tables(fs);
3326         else
3327                 retval = ext2fs_allocate_tables(fs);
3328         if (retval) {
3329                 com_err(program_name, retval, "%s",
3330                         _("while trying to allocate filesystem tables"));
3331                 exit(1);
3332         }
3333         if (!quiet)
3334                 printf("%s", _("done                            \n"));
3335
3336         /*
3337          * Unmark bad blocks to calculate overhead, because metadata
3338          * blocks and bad blocks can land on the same allocation cluster.
3339          */
3340         if (bb_list) {
3341                 retval = ext2fs_badblocks_list_iterate_begin(bb_list,
3342                                                              &bb_iter);
3343                 if (retval) {
3344                         com_err("ext2fs_badblocks_list_iterate_begin", retval,
3345                                 "%s", _("while unmarking bad blocks"));
3346                         exit(1);
3347                 }
3348                 while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
3349                         ext2fs_unmark_block_bitmap2(fs->block_map, blk);
3350                 ext2fs_badblocks_list_iterate_end(bb_iter);
3351         }
3352
3353         retval = ext2fs_convert_subcluster_bitmap(fs, &fs->block_map);
3354         if (retval) {
3355                 com_err(program_name, retval, "%s",
3356                         _("\n\twhile converting subcluster bitmap"));
3357                 exit(1);
3358         }
3359
3360         retval = ext2fs_count_used_clusters(fs, fs->super->s_first_data_block,
3361                                         ext2fs_blocks_count(fs->super) - 1,
3362                                         &overhead);
3363         if (retval) {
3364                 com_err(program_name, retval, "%s",
3365                         _("while calculating overhead"));
3366                 exit(1);
3367         }
3368
3369         if (bb_list) {
3370                 retval = ext2fs_badblocks_list_iterate_begin(bb_list,
3371                                                              &bb_iter);
3372                 if (retval) {
3373                         com_err("ext2fs_badblocks_list_iterate_begin", retval,
3374                                 "%s", _("while marking bad blocks as used"));
3375                         exit(1);
3376                 }
3377                 while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
3378                         ext2fs_mark_block_bitmap2(fs->block_map, blk);
3379                 ext2fs_badblocks_list_iterate_end(bb_iter);
3380         }
3381
3382         if (super_only) {
3383                 check_plausibility(device_name, CHECK_FS_EXIST, NULL);
3384                 printf(_("%s may be further corrupted by superblock rewrite\n"),
3385                        device_name);
3386                 if (!force)
3387                         proceed_question(proceed_delay);
3388                 fs->super->s_state |= EXT2_ERROR_FS;
3389                 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
3390                 /*
3391                  * The command "mke2fs -S" is used to recover
3392                  * corrupted file systems, so do not mark any of the
3393                  * inodes as unused; we want e2fsck to consider all
3394                  * inodes as potentially containing recoverable data.
3395                  */
3396                 if (ext2fs_has_group_desc_csum(fs)) {
3397                         for (i = 0; i < fs->group_desc_count; i++)
3398                                 ext2fs_bg_itable_unused_set(fs, i, 0);
3399                 }
3400         } else {
3401                 /* rsv must be a power of two (64kB is MD RAID sb alignment) */
3402                 blk64_t rsv = 65536 / fs->blocksize;
3403                 blk64_t blocks = ext2fs_blocks_count(fs->super);
3404                 blk64_t start;
3405                 blk64_t ret_blk;
3406
3407 #ifdef ZAP_BOOTBLOCK
3408                 zap_sector(fs, 0, 2);
3409 #endif
3410
3411                 /*
3412                  * Wipe out any old MD RAID (or other) metadata at the end
3413                  * of the device.  This will also verify that the device is
3414                  * as large as we think.  Be careful with very small devices.
3415                  */
3416                 start = (blocks & ~(rsv - 1));
3417                 if (start > rsv)
3418                         start -= rsv;
3419                 if (start > 0)
3420                         retval = ext2fs_zero_blocks2(fs, start, blocks - start,
3421                                                     &ret_blk, NULL);
3422
3423                 if (retval) {
3424                         com_err(program_name, retval,
3425                                 _("while zeroing block %llu at end of filesystem"),
3426                                 (unsigned long long) ret_blk);
3427                 }
3428                 write_inode_tables(fs, lazy_itable_init, itable_zeroed);
3429                 create_root_dir(fs);
3430                 create_lost_and_found(fs);
3431                 reserve_inodes(fs);
3432                 create_bad_block_inode(fs, bb_list);
3433                 if (ext2fs_has_feature_resize_inode(fs->super)) {
3434                         retval = ext2fs_create_resize_inode(fs);
3435                         if (retval) {
3436                                 com_err("ext2fs_create_resize_inode", retval,
3437                                         "%s",
3438                                 _("while reserving blocks for online resize"));
3439                                 exit(1);
3440                         }
3441                 }
3442         }
3443
3444         if (journal_device) {
3445                 ext2_filsys     jfs;
3446
3447                 if (!check_plausibility(journal_device, CHECK_BLOCK_DEV,
3448                                         NULL) && !force)
3449                         proceed_question(proceed_delay);
3450                 check_mount(journal_device, force, _("journal"));
3451
3452                 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
3453                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
3454                                      fs->blocksize, default_io_manager, &jfs);
3455                 if (retval) {
3456                         com_err(program_name, retval,
3457                                 _("while trying to open journal device %s\n"),
3458                                 journal_device);
3459                         exit(1);
3460                 }
3461                 if (!quiet) {
3462                         printf(_("Adding journal to device %s: "),
3463                                journal_device);
3464                         fflush(stdout);
3465                 }
3466                 retval = ext2fs_add_journal_device(fs, jfs);
3467                 if(retval) {
3468                         com_err (program_name, retval,
3469                                  _("\n\twhile trying to add journal to device %s"),
3470                                  journal_device);
3471                         exit(1);
3472                 }
3473                 if (!quiet)
3474                         printf("%s", _("done\n"));
3475                 ext2fs_close_free(&jfs);
3476                 free(journal_device);
3477         } else if ((journal_size) ||
3478                    ext2fs_has_feature_journal(&fs_param)) {
3479                 overhead += EXT2FS_NUM_B2C(fs, jparams.num_journal_blocks + jparams.num_fc_blocks);
3480                 if (super_only) {
3481                         printf("%s", _("Skipping journal creation in super-only mode\n"));
3482                         fs->super->s_journal_inum = EXT2_JOURNAL_INO;
3483                         goto no_journal;
3484                 }
3485
3486                 if (!jparams.num_journal_blocks) {
3487                         ext2fs_clear_feature_journal(fs->super);
3488                         ext2fs_clear_feature_orphan_file(fs->super);
3489                         ext2fs_clear_feature_journal(&fs_param);
3490                         ext2fs_clear_feature_orphan_file(&fs_param);
3491                         goto no_journal;
3492                 }
3493                 if (!quiet) {
3494                         printf(_("Creating journal (%u blocks): "),
3495                                jparams.num_journal_blocks + jparams.num_fc_blocks);
3496                         fflush(stdout);
3497                 }
3498                 retval = ext2fs_add_journal_inode3(fs, &jparams,
3499                                                    journal_location,
3500                                                    journal_flags);
3501                 if (retval) {
3502                         com_err(program_name, retval, "%s",
3503                                 _("\n\twhile trying to create journal"));
3504                         exit(1);
3505                 }
3506                 if (!quiet)
3507                         printf("%s", _("done\n"));
3508         }
3509 no_journal:
3510         if (!super_only &&
3511             ext2fs_has_feature_mmp(fs->super)) {
3512                 retval = ext2fs_mmp_init(fs);
3513                 if (retval) {
3514                         fprintf(stderr, "%s",
3515                                 _("\nError while enabling multiple "
3516                                   "mount protection feature."));
3517                         exit(1);
3518                 }
3519                 if (!quiet)
3520                         printf(_("Multiple mount protection is enabled "
3521                                  "with update interval %d seconds.\n"),
3522                                fs->super->s_mmp_update_interval);
3523         }
3524
3525         overhead += fs->super->s_first_data_block;
3526         if (!super_only)
3527                 fs->super->s_overhead_clusters = overhead;
3528
3529         if (ext2fs_has_feature_bigalloc(&fs_param))
3530                 fix_cluster_bg_counts(fs);
3531         if (ext2fs_has_feature_quota(&fs_param))
3532                 create_quota_inodes(fs);
3533         if (ext2fs_has_feature_orphan_file(&fs_param)) {
3534                 if (!ext2fs_has_feature_journal(&fs_param)) {
3535                         com_err(program_name, 0, _("cannot set orphan_file "
3536                                 "feature without a journal."));
3537                         exit(1);
3538                 }
3539                 if (!orphan_file_blocks) {
3540                         orphan_file_blocks =
3541                                 ext2fs_default_orphan_file_blocks(fs);
3542                 }
3543                 retval = ext2fs_create_orphan_file(fs, orphan_file_blocks);
3544                 if (retval) {
3545                         com_err(program_name, retval,
3546                                 _("while creating orphan file"));
3547                         exit(1);
3548                 }
3549         }
3550
3551         retval = mk_hugefiles(fs, device_name);
3552         if (retval)
3553                 com_err(program_name, retval, "while creating huge files");
3554         /* Copy files from the specified directory */
3555         if (src_root_dir) {
3556                 if (!quiet)
3557                         printf("%s", _("Copying files into the device: "));
3558
3559                 retval = populate_fs(fs, EXT2_ROOT_INO, src_root_dir,
3560                                      EXT2_ROOT_INO);
3561                 if (retval) {
3562                         com_err(program_name, retval, "%s",
3563                                 _("while populating file system"));
3564                         exit(1);
3565                 } else if (!quiet)
3566                         printf("%s", _("done\n"));
3567         }
3568
3569         if (!quiet)
3570                 printf("%s", _("Writing superblocks and "
3571                        "filesystem accounting information: "));
3572         checkinterval = fs->super->s_checkinterval;
3573         max_mnt_count = fs->super->s_max_mnt_count;
3574         retval = ext2fs_close_free(&fs);
3575         if (retval) {
3576                 com_err(program_name, retval, "%s",
3577                         _("while writing out and closing file system"));
3578                 retval = 1;
3579         } else if (!quiet) {
3580                 printf("%s", _("done\n\n"));
3581                 if (!getenv("MKE2FS_SKIP_CHECK_MSG"))
3582                         print_check_message(max_mnt_count, checkinterval);
3583         }
3584
3585         remove_error_table(&et_ext2_error_table);
3586         remove_error_table(&et_prof_error_table);
3587         profile_release(profile);
3588         for (i=0; fs_types[i]; i++)
3589                 free(fs_types[i]);
3590         free(fs_types);
3591         return retval;
3592 }