misc/mke2fs.c

   1 /*
   2  * mke2fs.c - Make a ext2fs filesystem.
   3  *
   4  * Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
   5  *      2003, 2004, 2005 by Theodore Ts'o.
   6  *
   7  * %Begin-Header%
   8  * This file may be redistributed under the terms of the GNU Public
   9  * License.
  10  * %End-Header%
  11  */
  12
  13 /* Usage: mke2fs [options] device
  14  *
  15  * The device may be a block device or a image of one, but this isn't
  16  * enforced (but it's not much fun on a character device :-).
  17  */
  18
  19 #define _XOPEN_SOURCE 600
  20
  21 #include "config.h"
  22 #include <stdio.h>
  23 #include <string.h>
  24 #include <strings.h>
  25 #include <ctype.h>
  26 #include <time.h>
  27 #ifdef HAVE_GETOPT_H
  28 #include <getopt.h>
  29 #else
  30 extern char *optarg;
  31 extern int optind;
  32 #endif
  33 #ifdef HAVE_UNISTD_H
  34 #include <unistd.h>
  35 #endif
  36 #ifdef HAVE_STDLIB_H
  37 #include <stdlib.h>
  38 #endif
  39 #ifdef HAVE_ERRNO_H
  40 #include <errno.h>
  41 #endif
  42 #ifdef HAVE_SYS_IOCTL_H
  43 #include <sys/ioctl.h>
  44 #endif
  45 #include <libgen.h>
  46 #include <limits.h>
  47 #include <blkid/blkid.h>
  48
  49 #include "ext2fs/ext2_fs.h"
  50 #include "ext2fs/ext2fsP.h"
  51 #include "uuid/uuid.h"
  52 #include "util.h"
  53 #include "support/nls-enable.h"
  54 #include "support/plausible.h"
  55 #include "support/profile.h"
  56 #include "support/prof_err.h"
  57 #include "../version.h"
  58 #include "support/quotaio.h"
  59 #include "mke2fs.h"
  60 #include "create_inode.h"
  61
  62 #define STRIDE_LENGTH 8
  63
  64 #define MAX_32_NUM ((((unsigned long long) 1) << 32) - 1)
  65
  66 #ifndef __sparc__
  67 #define ZAP_BOOTBLOCK
  68 #endif
  69
  70 extern int isatty(int);
  71 extern FILE *fpopen(const char *cmd, const char *mode);
  72
  73 const char * program_name = "mke2fs";
  74 static const char * device_name /* = NULL */;
  75
  76 /* Command line options */
  77 static int      cflag;
  78 int     verbose;
  79 int     quiet;
  80 static int      super_only;
  81 static int      discard = 1;    /* attempt to discard device before fs creation */
  82 static int      direct_io;
  83 static int      force;
  84 static int      noaction;
  85 static int      num_backups = 2; /* number of backup bg's for sparse_super2 */
  86 static uid_t    root_uid;
  87 static gid_t    root_gid;
  88 int     journal_size;
  89 int     journal_flags;
  90 int     journal_fc_size;
  91 static e2_blkcnt_t      orphan_file_blocks;
  92 static int      lazy_itable_init;
  93 static int      assume_storage_prezeroed;
  94 static int      packed_meta_blocks;
  95 int             no_copy_xattrs;
  96 static char     *bad_blocks_filename = NULL;
  97 static __u32    fs_stride;
  98 /* Initialize usr/grp quotas by default */
  99 static unsigned int quotatype_bits = (QUOTA_USR_BIT | QUOTA_GRP_BIT);
 100 static __u64    offset;
 101 static blk64_t journal_location = ~0LL;
 102 static int      proceed_delay = -1;
 103 static blk64_t  dev_size;
 104 blk64_t         iops_array[64];
 105 unsigned int    iops_size = sizeof(iops_array);
 106 unsigned int    iops_count = 0;
 107 blk64_t         *iops_range = iops_array;
 108
 109 static struct ext2_super_block fs_param;
 110 static __u32 zero_buf[4];
 111 static char *fs_uuid = NULL;
 112 static char *creator_os;
 113 static char *volume_label;
 114 static char *mount_dir;
 115 char *journal_device;
 116 static int sync_kludge; /* Set using the MKE2FS_SYNC env. option */
 117 char **fs_types;
 118 const char *src_root_dir;  /* Copy files from the specified directory */
 119 static char *undo_file;
 120
 121 static int android_sparse_file; /* -E android_sparse */
 122
 123 static profile_t        profile;
 124
 125 static int sys_page_size = 4096;
 126
 127 static int errors_behavior = 0;
 128
 129 static void usage(void)
 130 {
 131         fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] "
 132         "[-C cluster-size]\n\t[-i bytes-per-inode] [-I inode-size] "
 133         "[-J journal-options]\n"
 134         "\t[-G flex-group-size] [-N number-of-inodes] "
 135         "[-d root-directory]\n"
 136         "\t[-m reserved-blocks-percentage] [-o creator-os]\n"
 137         "\t[-g blocks-per-group] [-L volume-label] "
 138         "[-M last-mounted-directory]\n\t[-O feature[,...]] "
 139         "[-r fs-revision] [-E extended-option[,...]]\n"
 140         "\t[-t fs-type] [-T usage-type ] [-U UUID] [-e errors_behavior]"
 141         "[-z undo_file]\n"
 142         "\t[-jnqvDFSV] device [blocks-count]\n"),
 143                 program_name);
 144         exit(1);
 145 }
 146
 147 static int int_log2(unsigned long long arg)
 148 {
 149         int     l = 0;
 150
 151         arg >>= 1;
 152         while (arg) {
 153                 l++;
 154                 arg >>= 1;
 155         }
 156         return l;
 157 }
 158
 159 int int_log10(unsigned long long arg)
 160 {
 161         int     l;
 162
 163         for (l=0; arg ; l++)
 164                 arg = arg / 10;
 165         return l;
 166 }
 167
 168 /*
 169  * Helper function for read_bb_file and test_disk
 170  */
 171 static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk)
 172 {
 173         fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk);
 174         return;
 175 }
 176
 177 /*
 178  * Reads the bad blocks list from a file
 179  */
 180 static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list,
 181                          const char *bad_blocks_file)
 182 {
 183         FILE            *f;
 184         errcode_t       retval;
 185
 186         f = fopen(bad_blocks_file, "r");
 187         if (!f) {
 188                 com_err("read_bad_blocks_file", errno,
 189                         _("while trying to open %s"), bad_blocks_file);
 190                 exit(1);
 191         }
 192         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
 193         fclose (f);
 194         if (retval) {
 195                 com_err("ext2fs_read_bb_FILE", retval, "%s",
 196                         _("while reading in list of bad blocks from file"));
 197                 exit(1);
 198         }
 199 }
 200
 201 /*
 202  * Runs the badblocks program to test the disk
 203  */
 204 static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
 205 {
 206         FILE            *f;
 207         errcode_t       retval;
 208         char            buf[1024];
 209
 210         sprintf(buf, "badblocks -b %d -X %s%s%s %llu", fs->blocksize,
 211                 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "",
 212                 fs->device_name,
 213                 (unsigned long long) ext2fs_blocks_count(fs->super)-1);
 214         if (verbose)
 215                 printf(_("Running command: %s\n"), buf);
 216         f = popen(buf, "r");
 217         if (!f) {
 218                 com_err("popen", errno,
 219                         _("while trying to run '%s'"), buf);
 220                 exit(1);
 221         }
 222         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
 223         pclose(f);
 224         if (retval) {
 225                 com_err("ext2fs_read_bb_FILE", retval, "%s",
 226                         _("while processing list of bad blocks from program"));
 227                 exit(1);
 228         }
 229 }
 230
 231 static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
 232 {
 233         dgrp_t                  i;
 234         blk_t                   j;
 235         unsigned                must_be_good;
 236         blk_t                   blk;
 237         badblocks_iterate       bb_iter;
 238         errcode_t               retval;
 239         blk_t                   group_block;
 240         int                     group;
 241         int                     group_bad;
 242
 243         if (!bb_list)
 244                 return;
 245
 246         /*
 247          * The primary superblock and group descriptors *must* be
 248          * good; if not, abort.
 249          */
 250         must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
 251         for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
 252                 if (ext2fs_badblocks_list_test(bb_list, i)) {
 253                         fprintf(stderr, _("Block %d in primary "
 254                                 "superblock/group descriptor area bad.\n"), i);
 255                         fprintf(stderr, _("Blocks %u through %u must be good "
 256                                 "in order to build a filesystem.\n"),
 257                                 fs->super->s_first_data_block, must_be_good);
 258                         fputs(_("Aborting....\n"), stderr);
 259                         exit(1);
 260                 }
 261         }
 262
 263         /*
 264          * See if any of the bad blocks are showing up in the backup
 265          * superblocks and/or group descriptors.  If so, issue a
 266          * warning and adjust the block counts appropriately.
 267          */
 268         group_block = fs->super->s_first_data_block +
 269                 fs->super->s_blocks_per_group;
 270
 271         for (i = 1; i < fs->group_desc_count; i++) {
 272                 group_bad = 0;
 273                 for (j=0; j < fs->desc_blocks+1; j++) {
 274                         if (ext2fs_badblocks_list_test(bb_list,
 275                                                        group_block + j)) {
 276                                 if (!group_bad)
 277                                         fprintf(stderr,
 278 _("Warning: the backup superblock/group descriptors at block %u contain\n"
 279 "       bad blocks.\n\n"),
 280                                                 group_block);
 281                                 group_bad++;
 282                                 group = ext2fs_group_of_blk2(fs, group_block+j);
 283                                 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
 284                                 ext2fs_group_desc_csum_set(fs, group);
 285                                 ext2fs_free_blocks_count_add(fs->super, 1);
 286                         }
 287                 }
 288                 group_block += fs->super->s_blocks_per_group;
 289         }
 290
 291         /*
 292          * Mark all the bad blocks as used...
 293          */
 294         retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
 295         if (retval) {
 296                 com_err("ext2fs_badblocks_list_iterate_begin", retval, "%s",
 297                         _("while marking bad blocks as used"));
 298                 exit(1);
 299         }
 300         while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
 301                 ext2fs_mark_block_bitmap2(fs->block_map, blk);
 302         ext2fs_badblocks_list_iterate_end(bb_iter);
 303 }
 304
 305 static void write_reserved_inodes(ext2_filsys fs)
 306 {
 307         errcode_t       retval;
 308         ext2_ino_t      ino;
 309         struct ext2_inode *inode;
 310
 311         retval = ext2fs_get_memzero(EXT2_INODE_SIZE(fs->super), &inode);
 312         if (retval) {
 313                 com_err("inode_init", retval, _("while allocating memory"));
 314                 exit(1);
 315         }
 316
 317         for (ino = 1; ino < EXT2_FIRST_INO(fs->super); ino++) {
 318                 retval = ext2fs_write_inode_full(fs, ino, inode,
 319                                                  EXT2_INODE_SIZE(fs->super));
 320                 if (retval) {
 321                         com_err("ext2fs_write_inode_full", retval,
 322                                 _("while writing reserved inodes"));
 323                         exit(1);
 324                 }
 325         }
 326
 327         ext2fs_free_mem(&inode);
 328 }
 329
 330 static errcode_t packed_allocate_tables(ext2_filsys fs)
 331 {
 332         errcode_t       retval;
 333         dgrp_t          i;
 334         blk64_t         goal = 0;
 335
 336         for (i = 0; i < fs->group_desc_count; i++) {
 337                 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
 338                 if (retval)
 339                         return retval;
 340                 ext2fs_block_alloc_stats2(fs, goal, +1);
 341                 ext2fs_block_bitmap_loc_set(fs, i, goal);
 342         }
 343         for (i = 0; i < fs->group_desc_count; i++) {
 344                 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
 345                 if (retval)
 346                         return retval;
 347                 ext2fs_block_alloc_stats2(fs, goal, +1);
 348                 ext2fs_inode_bitmap_loc_set(fs, i, goal);
 349         }
 350         for (i = 0; i < fs->group_desc_count; i++) {
 351                 blk64_t end = ext2fs_blocks_count(fs->super) - 1;
 352                 retval = ext2fs_get_free_blocks2(fs, goal, end,
 353                                                  fs->inode_blocks_per_group,
 354                                                  fs->block_map, &goal);
 355                 if (retval)
 356                         return retval;
 357                 ext2fs_block_alloc_stats_range(fs, goal,
 358                                                fs->inode_blocks_per_group, +1);
 359                 ext2fs_inode_table_loc_set(fs, i, goal);
 360                 ext2fs_group_desc_csum_set(fs, i);
 361         }
 362         return 0;
 363 }
 364
 365 static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed)
 366 {
 367         errcode_t       retval;
 368         blk64_t         blk;
 369         dgrp_t          i;
 370         int             num;
 371         struct ext2fs_numeric_progress_struct progress;
 372
 373         ext2fs_numeric_progress_init(fs, &progress,
 374                                      _("Writing inode tables: "),
 375                                      fs->group_desc_count);
 376
 377         for (i = 0; i < fs->group_desc_count; i++) {
 378                 ext2fs_numeric_progress_update(fs, &progress, i);
 379
 380                 blk = ext2fs_inode_table_loc(fs, i);
 381                 num = fs->inode_blocks_per_group;
 382
 383                 if (lazy_flag)
 384                         num = ext2fs_div_ceil((fs->super->s_inodes_per_group -
 385                                                ext2fs_bg_itable_unused(fs, i)) *
 386                                               EXT2_INODE_SIZE(fs->super),
 387                                               EXT2_BLOCK_SIZE(fs->super));
 388                 if (!lazy_flag || itable_zeroed) {
 389                         /* The kernel doesn't need to zero the itable blocks */
 390                         ext2fs_bg_flags_set(fs, i, EXT2_BG_INODE_ZEROED);
 391                         ext2fs_group_desc_csum_set(fs, i);
 392                 }
 393                 if (!itable_zeroed) {
 394                         retval = ext2fs_zero_blocks2(fs, blk, num, &blk, &num);
 395                         if (retval) {
 396                                 fprintf(stderr, _("\nCould not write %d "
 397                                           "blocks in inode table starting at %llu: %s\n"),
 398                                         num, (unsigned long long) blk,
 399                                         error_message(retval));
 400                                 exit(1);
 401                         }
 402                 }
 403                 if (sync_kludge) {
 404                         if (sync_kludge == 1)
 405                                 io_channel_flush(fs->io);
 406                         else if ((i % sync_kludge) == 0)
 407                                 io_channel_flush(fs->io);
 408                 }
 409         }
 410         ext2fs_numeric_progress_close(fs, &progress,
 411                                       _("done                            \n"));
 412
 413         /* Reserved inodes must always have correct checksums */
 414         if (ext2fs_has_feature_metadata_csum(fs->super))
 415                 write_reserved_inodes(fs);
 416 }
 417
 418 static void create_root_dir(ext2_filsys fs)
 419 {
 420         errcode_t               retval;
 421         struct ext2_inode       inode;
 422
 423         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
 424         if (retval) {
 425                 com_err("ext2fs_mkdir", retval, "%s",
 426                         _("while creating root dir"));
 427                 exit(1);
 428         }
 429         if (root_uid != 0 || root_gid != 0) {
 430                 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
 431                 if (retval) {
 432                         com_err("ext2fs_read_inode", retval, "%s",
 433                                 _("while reading root inode"));
 434                         exit(1);
 435                 }
 436
 437                 inode.i_uid = root_uid;
 438                 ext2fs_set_i_uid_high(inode, root_uid >> 16);
 439                 inode.i_gid = root_gid;
 440                 ext2fs_set_i_gid_high(inode, root_gid >> 16);
 441
 442                 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
 443                 if (retval) {
 444                         com_err("ext2fs_write_inode", retval, "%s",
 445                                 _("while setting root inode ownership"));
 446                         exit(1);
 447                 }
 448         }
 449 }
 450
 451 static void create_lost_and_found(ext2_filsys fs)
 452 {
 453         unsigned int            lpf_size = 0;
 454         errcode_t               retval;
 455         ext2_ino_t              ino;
 456         const char              *name = "lost+found";
 457         int                     i;
 458
 459         fs->umask = 077;
 460         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
 461         if (retval) {
 462                 com_err("ext2fs_mkdir", retval, "%s",
 463                         _("while creating /lost+found"));
 464                 exit(1);
 465         }
 466
 467         retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
 468         if (retval) {
 469                 com_err("ext2_lookup", retval, "%s",
 470                         _("while looking up /lost+found"));
 471                 exit(1);
 472         }
 473
 474         for (i=1; i < EXT2_NDIR_BLOCKS; i++) {
 475                 /* Ensure that lost+found is at least 2 blocks, so we always
 476                  * test large empty blocks for big-block filesystems.  */
 477                 if ((lpf_size += fs->blocksize) >= 16*1024 &&
 478                     lpf_size >= 2 * fs->blocksize)
 479                         break;
 480                 retval = ext2fs_expand_dir(fs, ino);
 481                 if (retval) {
 482                         com_err("ext2fs_expand_dir", retval, "%s",
 483                                 _("while expanding /lost+found"));
 484                         exit(1);
 485                 }
 486         }
 487 }
 488
 489 static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
 490 {
 491         errcode_t       retval;
 492
 493         ext2fs_mark_inode_bitmap2(fs->inode_map, EXT2_BAD_INO);
 494         ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0);
 495         retval = ext2fs_update_bb_inode(fs, bb_list);
 496         if (retval) {
 497                 com_err("ext2fs_update_bb_inode", retval, "%s",
 498                         _("while setting bad block inode"));
 499                 exit(1);
 500         }
 501
 502 }
 503
 504 static void reserve_inodes(ext2_filsys fs)
 505 {
 506         ext2_ino_t      i;
 507
 508         for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++)
 509                 ext2fs_inode_alloc_stats2(fs, i, +1, 0);
 510         ext2fs_mark_ib_dirty(fs);
 511 }
 512
 513 #define BSD_DISKMAGIC   (0x82564557UL)  /* The disk magic number */
 514 #define BSD_MAGICDISK   (0x57455682UL)  /* The disk magic number reversed */
 515 #define BSD_LABEL_OFFSET        64
 516
 517 static void zap_sector(ext2_filsys fs, int sect, int nsect)
 518 {
 519         char *buf;
 520         int retval;
 521         unsigned int *magic;
 522
 523         buf = calloc(512, nsect);
 524         if (!buf) {
 525                 printf(_("Out of memory erasing sectors %d-%d\n"),
 526                        sect, sect + nsect - 1);
 527                 exit(1);
 528         }
 529
 530         if (sect == 0) {
 531                 /* Check for a BSD disklabel, and don't erase it if so */
 532                 retval = io_channel_read_blk64(fs->io, 0, -512, buf);
 533                 if (retval)
 534                         fprintf(stderr,
 535                                 _("Warning: could not read block 0: %s\n"),
 536                                 error_message(retval));
 537                 else {
 538                         magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);
 539                         if ((*magic == BSD_DISKMAGIC) ||
 540                             (*magic == BSD_MAGICDISK)) {
 541                                 free(buf);
 542                                 return;
 543                         }
 544                 }
 545         }
 546
 547         memset(buf, 0, 512*nsect);
 548         io_channel_set_blksize(fs->io, 512);
 549         retval = io_channel_write_blk64(fs->io, sect, -512*nsect, buf);
 550         io_channel_set_blksize(fs->io, fs->blocksize);
 551         free(buf);
 552         if (retval)
 553                 fprintf(stderr, _("Warning: could not erase sector %d: %s\n"),
 554                         sect, error_message(retval));
 555 }
 556
 557 static void create_journal_dev(ext2_filsys fs)
 558 {
 559         struct ext2fs_numeric_progress_struct progress;
 560         errcode_t               retval;
 561         char                    *buf;
 562         blk64_t                 blk, err_blk;
 563         int                     c, count, err_count;
 564         struct ext2fs_journal_params    jparams;
 565
 566         retval = ext2fs_get_journal_params(&jparams, fs);
 567         if (retval) {
 568                 com_err("create_journal_dev", retval, "%s",
 569                         _("while splitting the journal size"));
 570                 exit(1);
 571         }
 572
 573         retval = ext2fs_create_journal_superblock2(fs, &jparams, 0, &buf);
 574         if (retval) {
 575                 com_err("create_journal_dev", retval, "%s",
 576                         _("while initializing journal superblock"));
 577                 exit(1);
 578         }
 579
 580         if (journal_flags & EXT2_MKJOURNAL_LAZYINIT)
 581                 goto write_superblock;
 582
 583         ext2fs_numeric_progress_init(fs, &progress,
 584                                      _("Zeroing journal device: "),
 585                                      ext2fs_blocks_count(fs->super));
 586         blk = 0;
 587         count = ext2fs_blocks_count(fs->super);
 588         while (count > 0) {
 589                 if (count > 1024)
 590                         c = 1024;
 591                 else
 592                         c = count;
 593                 retval = ext2fs_zero_blocks2(fs, blk, c, &err_blk, &err_count);
 594                 if (retval) {
 595                         com_err("create_journal_dev", retval,
 596                                 _("while zeroing journal device "
 597                                   "(block %llu, count %d)"),
 598                                 (unsigned long long) err_blk, err_count);
 599                         exit(1);
 600                 }
 601                 blk += c;
 602                 count -= c;
 603                 ext2fs_numeric_progress_update(fs, &progress, blk);
 604         }
 605
 606         ext2fs_numeric_progress_close(fs, &progress, NULL);
 607 write_superblock:
 608         retval = io_channel_write_blk64(fs->io,
 609                                         fs->super->s_first_data_block+1,
 610                                         1, buf);
 611         (void) ext2fs_free_mem(&buf);
 612         if (retval) {
 613                 com_err("create_journal_dev", retval, "%s",
 614                         _("while writing journal superblock"));
 615                 exit(1);
 616         }
 617 }
 618
 619 static void show_stats(ext2_filsys fs)
 620 {
 621         struct ext2_super_block *s = fs->super;
 622         char                    *os;
 623         blk64_t                 group_block;
 624         dgrp_t                  i;
 625         int                     need, col_left;
 626
 627         if (!verbose) {
 628                 printf(_("Creating filesystem with %llu %dk blocks and "
 629                          "%u inodes\n"),
 630                        (unsigned long long) ext2fs_blocks_count(s),
 631                        fs->blocksize >> 10, s->s_inodes_count);
 632                 goto skip_details;
 633         }
 634
 635         if (ext2fs_blocks_count(&fs_param) != ext2fs_blocks_count(s))
 636                 fprintf(stderr, _("warning: %llu blocks unused.\n\n"),
 637                         (unsigned long long) (ext2fs_blocks_count(&fs_param) -
 638                                               ext2fs_blocks_count(s)));
 639
 640         printf(_("Filesystem label=%.*s\n"), EXT2_LEN_STR(s->s_volume_name));
 641
 642         os = e2p_os2string(fs->super->s_creator_os);
 643         if (os)
 644                 printf(_("OS type: %s\n"), os);
 645         free(os);
 646         printf(_("Block size=%u (log=%u)\n"), fs->blocksize,
 647                 s->s_log_block_size);
 648         if (ext2fs_has_feature_bigalloc(fs->super))
 649                 printf(_("Cluster size=%u (log=%u)\n"),
 650                        fs->blocksize << fs->cluster_ratio_bits,
 651                        s->s_log_cluster_size);
 652         else
 653                 printf(_("Fragment size=%u (log=%u)\n"), EXT2_CLUSTER_SIZE(s),
 654                        s->s_log_cluster_size);
 655         printf(_("Stride=%u blocks, Stripe width=%u blocks\n"),
 656                s->s_raid_stride, s->s_raid_stripe_width);
 657         printf(_("%u inodes, %llu blocks\n"), s->s_inodes_count,
 658                (unsigned long long) ext2fs_blocks_count(s));
 659         printf(_("%llu blocks (%2.2f%%) reserved for the super user\n"),
 660                (unsigned long long) ext2fs_r_blocks_count(s),
 661                100.0 *  ext2fs_r_blocks_count(s) / ext2fs_blocks_count(s));
 662         printf(_("First data block=%u\n"), s->s_first_data_block);
 663         if (root_uid != 0 || root_gid != 0)
 664                 printf(_("Root directory owner=%u:%u\n"), root_uid, root_gid);
 665         if (s->s_reserved_gdt_blocks)
 666                 printf(_("Maximum filesystem blocks=%lu\n"),
 667                        (s->s_reserved_gdt_blocks + fs->desc_blocks) *
 668                        EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group);
 669         if (fs->group_desc_count > 1)
 670                 printf(_("%u block groups\n"), fs->group_desc_count);
 671         else
 672                 printf(_("%u block group\n"), fs->group_desc_count);
 673         if (ext2fs_has_feature_bigalloc(fs->super))
 674                 printf(_("%u blocks per group, %u clusters per group\n"),
 675                        s->s_blocks_per_group, s->s_clusters_per_group);
 676         else
 677                 printf(_("%u blocks per group, %u fragments per group\n"),
 678                        s->s_blocks_per_group, s->s_clusters_per_group);
 679         printf(_("%u inodes per group\n"), s->s_inodes_per_group);
 680
 681 skip_details:
 682         if (fs->group_desc_count == 1) {
 683                 printf("\n");
 684                 return;
 685         }
 686
 687         if (!e2p_is_null_uuid(s->s_uuid))
 688                 printf(_("Filesystem UUID: %s\n"), e2p_uuid2str(s->s_uuid));
 689         printf("%s", _("Superblock backups stored on blocks: "));
 690         group_block = s->s_first_data_block;
 691         col_left = 0;
 692         for (i = 1; i < fs->group_desc_count; i++) {
 693                 group_block += s->s_blocks_per_group;
 694                 if (!ext2fs_bg_has_super(fs, i))
 695                         continue;
 696                 if (i != 1)
 697                         printf(", ");
 698                 need = int_log10(group_block) + 2;
 699                 if (need > col_left) {
 700                         printf("\n\t");
 701                         col_left = 72;
 702                 }
 703                 col_left -= need;
 704                 printf("%llu", (unsigned long long) group_block);
 705         }
 706         printf("\n\n");
 707 }
 708
 709 /*
 710  * Returns true if making a file system for the Hurd, else 0
 711  */
 712 static int for_hurd(const char *os)
 713 {
 714         if (!os) {
 715 #ifdef __GNU__
 716                 return 1;
 717 #else
 718                 return 0;
 719 #endif
 720         }
 721         if (isdigit(*os))
 722                 return (atoi(os) == EXT2_OS_HURD);
 723         return (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0);
 724 }
 725
 726 /*
 727  * Set the S_CREATOR_OS field.  Return true if OS is known,
 728  * otherwise, 0.
 729  */
 730 static int set_os(struct ext2_super_block *sb, char *os)
 731 {
 732         if (isdigit (*os))
 733                 sb->s_creator_os = atoi (os);
 734         else if (strcasecmp(os, "linux") == 0)
 735                 sb->s_creator_os = EXT2_OS_LINUX;
 736         else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0)
 737                 sb->s_creator_os = EXT2_OS_HURD;
 738         else if (strcasecmp(os, "freebsd") == 0)
 739                 sb->s_creator_os = EXT2_OS_FREEBSD;
 740         else if (strcasecmp(os, "lites") == 0)
 741                 sb->s_creator_os = EXT2_OS_LITES;
 742         else
 743                 return 0;
 744         return 1;
 745 }
 746
 747 static int parse_range(char *p_start, char *p_end, char *p_hyphen)
 748 {
 749         blk64_t start, end;
 750         blk64_t *new_array;
 751
 752         /**
 753          * e.g  0-1024G
 754          *      ^      ^
 755          *      |      |
 756          *   p_start  p_end
 757          */
 758         end = parse_num_blocks(p_hyphen + 1, -1);
 759
 760         if (!isdigit(*(p_end - 1)) && isdigit(*(p_hyphen -1))) {
 761                 /* copy G/M/K unit to start value */
 762                 *p_hyphen = *(p_end - 1);
 763                 p_hyphen++;
 764         }
 765         *p_hyphen = 0;
 766
 767         start = parse_num_blocks(p_start, -1);
 768
 769         /* add to iops_range */
 770         if (iops_count == iops_size) {
 771                 iops_size <<= 1;
 772                 if (iops_size == 0) {
 773                         iops_size = iops_count;
 774                         return -E2BIG;
 775                 }
 776                 if (iops_range == iops_array)
 777                         new_array = malloc(iops_size * sizeof(blk64_t));
 778                 else
 779                         new_array = realloc(iops_range,
 780                                             iops_size * sizeof(blk64_t));
 781                 if (!new_array) {
 782                         iops_size >>= 1;
 783                         return -ENOMEM;
 784                 } else {
 785                         iops_range = new_array;
 786                 }
 787         }
 788
 789         iops_range[iops_count++] = start;
 790         iops_range[iops_count++] = end;
 791
 792         return 0;
 793 }
 794
 795 #define PATH_SET "PATH=/sbin"
 796
 797 static void parse_extended_opts(struct ext2_super_block *param,
 798                                 const char *opts)
 799 {
 800         char    *buf, *token, *next, *p, *arg, *badopt = 0;
 801         int     len;
 802         int     r_usage = 0;
 803         int     ret;
 804         int     encoding = -1;
 805         char    *encoding_flags = NULL;
 806
 807         len = strlen(opts);
 808         buf = malloc(len+1);
 809         if (!buf) {
 810                 fprintf(stderr, "%s",
 811                         _("Couldn't allocate memory to parse options!\n"));
 812                 exit(1);
 813         }
 814         strcpy(buf, opts);
 815         for (token = buf; token && *token; token = next) {
 816                 p = strchr(token, ',');
 817                 next = 0;
 818                 if (p) {
 819                         *p = 0;
 820                         next = p+1;
 821                 }
 822                 arg = strchr(token, '=');
 823                 if (arg) {
 824                         *arg = 0;
 825                         arg++;
 826                 }
 827                 if (strcmp(token, "desc-size") == 0 ||
 828                     strcmp(token, "desc_size") == 0) {
 829                         int desc_size;
 830
 831                         if (!ext2fs_has_feature_64bit(&fs_param)) {
 832                                 fprintf(stderr,
 833                                         _("%s requires '-O 64bit'\n"), token);
 834                                 r_usage++;
 835                                 continue;
 836                         }
 837                         if (param->s_reserved_gdt_blocks != 0) {
 838                                 fprintf(stderr,
 839                                         _("'%s' must be before 'resize=%u'\n"),
 840                                         token, param->s_reserved_gdt_blocks);
 841                                 r_usage++;
 842                                 continue;
 843                         }
 844                         if (!arg) {
 845                                 r_usage++;
 846                                 badopt = token;
 847                                 continue;
 848                         }
 849                         desc_size = strtoul(arg, &p, 0);
 850                         if (*p || (desc_size & (desc_size - 1))) {
 851                                 fprintf(stderr,
 852                                         _("Invalid desc_size: '%s'\n"), arg);
 853                                 r_usage++;
 854                                 continue;
 855                         }
 856                         param->s_desc_size = desc_size;
 857                 } else if (strcmp(token, "hash_seed") == 0) {
 858                         if (!arg) {
 859                                 r_usage++;
 860                                 badopt = token;
 861                                 continue;
 862                         }
 863                         if (uuid_parse(arg,
 864                                 (unsigned char *)param->s_hash_seed) != 0) {
 865                                 fprintf(stderr,
 866                                         _("Invalid hash seed: %s\n"), arg);
 867                                 r_usage++;
 868                                 continue;
 869                         }
 870                 } else if (strcmp(token, "offset") == 0) {
 871                         if (!arg) {
 872                                 r_usage++;
 873                                 badopt = token;
 874                                 continue;
 875                         }
 876                         offset = strtoull(arg, &p, 0);
 877                         if (*p) {
 878                                 fprintf(stderr, _("Invalid offset: %s\n"),
 879                                         arg);
 880                                 r_usage++;
 881                                 continue;
 882                         }
 883                 } else if (strcmp(token, "mmp_update_interval") == 0) {
 884                         if (!arg) {
 885                                 r_usage++;
 886                                 badopt = token;
 887                                 continue;
 888                         }
 889                         param->s_mmp_update_interval = strtoul(arg, &p, 0);
 890                         if (*p) {
 891                                 fprintf(stderr,
 892                                         _("Invalid mmp_update_interval: %s\n"),
 893                                         arg);
 894                                 r_usage++;
 895                                 continue;
 896                         }
 897                 } else if (strcmp(token, "no_copy_xattrs") == 0) {
 898                         no_copy_xattrs = 1;
 899                         continue;
 900                 } else if (strcmp(token, "num_backup_sb") == 0) {
 901                         if (!arg) {
 902                                 r_usage++;
 903                                 badopt = token;
 904                                 continue;
 905                         }
 906                         num_backups = strtoul(arg, &p, 0);
 907                         if (*p || num_backups > 2) {
 908                                 fprintf(stderr,
 909                                         _("Invalid # of backup "
 910                                           "superblocks: %s\n"),
 911                                         arg);
 912                                 r_usage++;
 913                                 continue;
 914                         }
 915                 } else if (strcmp(token, "packed_meta_blocks") == 0) {
 916                         if (arg)
 917                                 packed_meta_blocks = strtoul(arg, &p, 0);
 918                         else
 919                                 packed_meta_blocks = 1;
 920                         if (packed_meta_blocks)
 921                                 journal_location = 0;
 922                 } else if (strcmp(token, "stride") == 0) {
 923                         if (!arg) {
 924                                 r_usage++;
 925                                 badopt = token;
 926                                 continue;
 927                         }
 928                         param->s_raid_stride = strtoul(arg, &p, 0);
 929                         if (*p) {
 930                                 fprintf(stderr,
 931                                         _("Invalid stride parameter: %s\n"),
 932                                         arg);
 933                                 r_usage++;
 934                                 continue;
 935                         }
 936                 } else if (strcmp(token, "stripe-width") == 0 ||
 937                            strcmp(token, "stripe_width") == 0) {
 938                         if (!arg) {
 939                                 r_usage++;
 940                                 badopt = token;
 941                                 continue;
 942                         }
 943                         param->s_raid_stripe_width = strtoul(arg, &p, 0);
 944                         if (*p) {
 945                                 fprintf(stderr,
 946                                         _("Invalid stripe-width parameter: %s\n"),
 947                                         arg);
 948                                 r_usage++;
 949                                 continue;
 950                         }
 951                 } else if (!strcmp(token, "resize")) {
 952                         blk64_t resize;
 953                         unsigned long bpg, rsv_groups;
 954                         unsigned long group_desc_count, desc_blocks;
 955                         unsigned int gdpb, blocksize;
 956                         int rsv_gdb;
 957
 958                         if (!arg) {
 959                                 r_usage++;
 960                                 badopt = token;
 961                                 continue;
 962                         }
 963
 964                         resize = parse_num_blocks2(arg,
 965                                                    param->s_log_block_size);
 966
 967                         if (resize == 0) {
 968                                 fprintf(stderr,
 969                                         _("Invalid resize parameter: %s\n"),
 970                                         arg);
 971                                 r_usage++;
 972                                 continue;
 973                         }
 974                         if (resize <= ext2fs_blocks_count(param)) {
 975                                 fprintf(stderr, "%s",
 976                                         _("The resize maximum must be greater "
 977                                           "than the filesystem size.\n"));
 978                                 r_usage++;
 979                                 continue;
 980                         }
 981
 982                         blocksize = EXT2_BLOCK_SIZE(param);
 983                         bpg = param->s_blocks_per_group;
 984                         if (!bpg)
 985                                 bpg = blocksize * 8;
 986                         gdpb = EXT2_DESC_PER_BLOCK(param);
 987                         group_desc_count = (__u32) ext2fs_div64_ceil(
 988                                 ext2fs_blocks_count(param), bpg);
 989                         desc_blocks = (group_desc_count +
 990                                        gdpb - 1) / gdpb;
 991                         rsv_groups = ext2fs_div64_ceil(resize, bpg);
 992                         rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) -
 993                                 desc_blocks;
 994                         if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param))
 995                                 rsv_gdb = EXT2_ADDR_PER_BLOCK(param);
 996
 997                         if (rsv_gdb > 0) {
 998                                 if (param->s_rev_level == EXT2_GOOD_OLD_REV) {
 999                                         fprintf(stderr, "%s",
1000         _("On-line resizing not supported with revision 0 filesystems\n"));
1001                                         free(buf);
1002                                         exit(1);
1003                                 }
1004                                 ext2fs_set_feature_resize_inode(param);
1005
1006                                 param->s_reserved_gdt_blocks = rsv_gdb;
1007                         }
1008                 } else if (!strcmp(token, "test_fs")) {
1009                         param->s_flags |= EXT2_FLAGS_TEST_FILESYS;
1010                 } else if (!strcmp(token, "lazy_itable_init")) {
1011                         if (arg)
1012                                 lazy_itable_init = strtoul(arg, &p, 0);
1013                         else
1014                                 lazy_itable_init = 1;
1015                 } else if (!strcmp(token, "assume_storage_prezeroed")) {
1016                         if (arg)
1017                                 assume_storage_prezeroed = strtoul(arg, &p, 0);
1018                         else
1019                                 assume_storage_prezeroed = 1;
1020                 } else if (!strcmp(token, "lazy_journal_init")) {
1021                         if (arg)
1022                                 journal_flags |= strtoul(arg, &p, 0) ?
1023                                                 EXT2_MKJOURNAL_LAZYINIT : 0;
1024                         else
1025                                 journal_flags |= EXT2_MKJOURNAL_LAZYINIT;
1026                 } else if (!strcmp(token, "root_owner")) {
1027                         if (arg) {
1028                                 root_uid = strtoul(arg, &p, 0);
1029                                 if (*p != ':') {
1030                                         fprintf(stderr,
1031                                                 _("Invalid root_owner: '%s'\n"),
1032                                                 arg);
1033                                         r_usage++;
1034                                         continue;
1035                                 }
1036                                 p++;
1037                                 root_gid = strtoul(p, &p, 0);
1038                                 if (*p) {
1039                                         fprintf(stderr,
1040                                                 _("Invalid root_owner: '%s'\n"),
1041                                                 arg);
1042                                         r_usage++;
1043                                         continue;
1044                                 }
1045                         } else {
1046                                 root_uid = getuid();
1047                                 root_gid = getgid();
1048                         }
1049                 } else if (!strcmp(token, "discard")) {
1050                         discard = 1;
1051                 } else if (!strcmp(token, "nodiscard")) {
1052                         discard = 0;
1053                 } else if (!strcmp(token, "quotatype")) {
1054                         char *errtok = NULL;
1055
1056                         if (!arg) {
1057                                 r_usage++;
1058                                 badopt = token;
1059                                 continue;
1060                         }
1061                         quotatype_bits = 0;
1062                         ret = parse_quota_types(arg, &quotatype_bits, &errtok);
1063                         if (ret) {
1064                                 if (errtok) {
1065                                         fprintf(stderr,
1066                                 "Failed to parse quota type at %s", errtok);
1067                                         free(errtok);
1068                                 } else
1069                                         com_err(program_name, ret,
1070                                                 "while parsing quota type");
1071                                 r_usage++;
1072                                 badopt = token;
1073                                 continue;
1074                         }
1075                 } else if (!strcmp(token, "android_sparse")) {
1076                         android_sparse_file = 1;
1077                 } else if (!strcmp(token, "encoding")) {
1078                         if (!arg) {
1079                                 r_usage++;
1080                                 continue;
1081                         }
1082
1083                         encoding = e2p_str2encoding(arg);
1084                         if (encoding < 0) {
1085                                 fprintf(stderr, _("Invalid encoding: %s"), arg);
1086                                 r_usage++;
1087                                 continue;
1088                         }
1089                         param->s_encoding = encoding;
1090                         ext2fs_set_feature_casefold(param);
1091                 } else if (!strcmp(token, "encoding_flags")) {
1092                         if (!arg) {
1093                                 r_usage++;
1094                                 continue;
1095                         }
1096                         encoding_flags = arg;
1097                 } else if (!strcmp(token, "orphan_file_size")) {
1098                         if (!arg) {
1099                                 r_usage++;
1100                                 badopt = token;
1101                                 continue;
1102                         }
1103                         orphan_file_blocks = parse_num_blocks2(arg,
1104                                                 fs_param.s_log_block_size);
1105                         if (orphan_file_blocks == 0) {
1106                                 fprintf(stderr,
1107                                         _("Invalid size of orphan file %s\n"),
1108                                         arg);
1109                                 r_usage++;
1110                                 continue;
1111                         }
1112                 } else if (!strcmp(token, "iops")) {
1113                         char *p_colon, *p_hyphen;
1114                         blk64_t start, end;
1115
1116                         /* example: iops=0-1024G:4096-8192G */
1117
1118                         if (!arg) {
1119                                 r_usage++;
1120                                 badopt = token;
1121                                 continue;
1122                         }
1123                         p_colon = strchr(arg, ':');
1124                         while (p_colon != NULL) {
1125                                 *p_colon = 0;
1126
1127                                 p_hyphen = strchr(arg, '-');
1128                                 if (p_hyphen == NULL) {
1129                                         fprintf(stderr,
1130                                                 _("error: parse iops %s\n"),
1131                                                 arg);
1132                                         r_usage++;
1133                                         badopt = token;
1134                                         break;
1135                                 }
1136
1137                                 ret = parse_range(arg, p_colon, p_hyphen);
1138                                 if (ret < 0) {
1139                                         fprintf(stderr,
1140                                                 _("error: parse iops %s:%d\n"),
1141                                                 arg, ret);
1142                                         r_usage++;
1143                                         badopt = token;
1144                                         break;
1145                                 }
1146
1147                                 arg = p_colon + 1;
1148                                 p_colon = strchr(arg, ':');
1149                         }
1150                         p_hyphen = strchr(arg, '-');
1151                         if (p_hyphen == NULL) {
1152                                 fprintf(stderr,
1153                                         _("error: parse iops %s\n"), arg);
1154                                 r_usage++;
1155                                 badopt = token;
1156                                 continue;
1157                         }
1158
1159                         ret = parse_range(arg, arg + strlen(arg), p_hyphen);
1160                         if (ret < 0) {
1161                                 fprintf(stderr,
1162                                         _("error: parse iops %s:%d\n"),
1163                                         arg, ret);
1164                                 r_usage++;
1165                                 badopt = token;
1166                                 continue;
1167                         }
1168                 } else {
1169                         r_usage++;
1170                         badopt = token;
1171                 }
1172         }
1173         if (r_usage) {
1174                 fprintf(stderr, _("\nBad option(s) specified: %s\n\n"
1175                         "Extended options are separated by commas, "
1176                         "and may take an argument which\n"
1177                         "\tis set off by an equals ('=') sign.\n\n"
1178                         "Valid extended options are:\n"
1179                         "\tmmp_update_interval=<interval>\n"
1180                         "\tnum_backup_sb=<0|1|2>\n"
1181                         "\tstride=<RAID per-disk data chunk in blocks>\n"
1182                         "\tstripe-width=<RAID stride * data disks in blocks>\n"
1183                         "\toffset=<offset to create the file system>\n"
1184                         "\tresize=<resize maximum size in blocks>\n"
1185                         "\tpacked_meta_blocks=<0 to disable, 1 to enable>\n"
1186                         "\tlazy_itable_init=<0 to disable, 1 to enable>\n"
1187                         "\tlazy_journal_init=<0 to disable, 1 to enable>\n"
1188                         "\troot_owner=<uid of root dir>:<gid of root dir>\n"
1189                         "\ttest_fs\n"
1190                         "\tdiscard\n"
1191                         "\tnodiscard\n"
1192                         "\tencoding=<encoding>\n"
1193                         "\tencoding_flags=<flags>\n"
1194                         "\tiops=<iops storage size range>\n"
1195                         "\tquotatype=<quota type(s) to be enabled>\n"
1196                         "\tassume_storage_prezeroed=<0 to disable, 1 to enable>\n\n"),
1197                         badopt ? badopt : "");
1198                 free(buf);
1199                 if (iops_range != iops_array)
1200                         free(iops_range);
1201                 exit(1);
1202         }
1203         if (param->s_raid_stride &&
1204             (param->s_raid_stripe_width % param->s_raid_stride) != 0)
1205                 fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even "
1206                                   "multiple of stride %u.\n\n"),
1207                         param->s_raid_stripe_width, param->s_raid_stride);
1208
1209         if (ext2fs_has_feature_casefold(param)) {
1210                 param->s_encoding_flags =
1211                         e2p_get_encoding_flags(param->s_encoding);
1212
1213                 if (encoding_flags &&
1214                     e2p_str2encoding_flags(param->s_encoding, encoding_flags,
1215                                            &param->s_encoding_flags)) {
1216                         fprintf(stderr, _("error: Invalid encoding flag: %s\n"),
1217                                 encoding_flags);
1218                         free(buf);
1219                         exit(1);
1220                 }
1221         } else if (encoding_flags) {
1222                 fprintf(stderr, _("error: An encoding must be explicitly "
1223                                   "specified when passing encoding-flags\n"));
1224                 free(buf);
1225                 exit(1);
1226         }
1227
1228         free(buf);
1229 }
1230
1231 static __u32 ok_features[3] = {
1232         /* Compat */
1233         EXT3_FEATURE_COMPAT_HAS_JOURNAL |
1234                 EXT2_FEATURE_COMPAT_RESIZE_INODE |
1235                 EXT2_FEATURE_COMPAT_DIR_INDEX |
1236                 EXT2_FEATURE_COMPAT_EXT_ATTR |
1237                 EXT4_FEATURE_COMPAT_SPARSE_SUPER2 |
1238                 EXT4_FEATURE_COMPAT_FAST_COMMIT |
1239                 EXT4_FEATURE_COMPAT_STABLE_INODES |
1240                 EXT4_FEATURE_COMPAT_ORPHAN_FILE,
1241         /* Incompat */
1242         EXT2_FEATURE_INCOMPAT_FILETYPE|
1243                 EXT3_FEATURE_INCOMPAT_EXTENTS|
1244                 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
1245                 EXT2_FEATURE_INCOMPAT_META_BG|
1246                 EXT4_FEATURE_INCOMPAT_FLEX_BG|
1247                 EXT4_FEATURE_INCOMPAT_EA_INODE|
1248                 EXT4_FEATURE_INCOMPAT_MMP |
1249                 EXT4_FEATURE_INCOMPAT_DIRDATA|
1250                 EXT4_FEATURE_INCOMPAT_64BIT|
1251                 EXT4_FEATURE_INCOMPAT_INLINE_DATA|
1252                 EXT4_FEATURE_INCOMPAT_ENCRYPT |
1253                 EXT4_FEATURE_INCOMPAT_CASEFOLD |
1254                 EXT4_FEATURE_INCOMPAT_CSUM_SEED |
1255                 EXT4_FEATURE_INCOMPAT_LARGEDIR,
1256         /* R/O compat */
1257         EXT2_FEATURE_RO_COMPAT_LARGE_FILE|
1258                 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
1259                 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
1260                 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
1261                 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|
1262                 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
1263                 EXT4_FEATURE_RO_COMPAT_BIGALLOC|
1264                 EXT4_FEATURE_RO_COMPAT_QUOTA|
1265                 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|
1266                 EXT4_FEATURE_RO_COMPAT_PROJECT|
1267                 EXT4_FEATURE_RO_COMPAT_VERITY
1268 };
1269
1270
1271 static void syntax_err_report(const char *filename, long err, int line_num)
1272 {
1273         fprintf(stderr,
1274                 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"),
1275                 filename, line_num, error_message(err));
1276         exit(1);
1277 }
1278
1279 static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 };
1280
1281 static void edit_feature(const char *str, __u32 *compat_array)
1282 {
1283         if (!str)
1284                 return;
1285
1286         if (e2p_edit_feature(str, compat_array, ok_features)) {
1287                 fprintf(stderr, _("Invalid filesystem option set: %s\n"),
1288                         str);
1289                 exit(1);
1290         }
1291 }
1292
1293 static void edit_mntopts(const char *str, __u32 *mntopts)
1294 {
1295         if (!str)
1296                 return;
1297
1298         if (e2p_edit_mntopts(str, mntopts, ~0)) {
1299                 fprintf(stderr, _("Invalid mount option set: %s\n"),
1300                         str);
1301                 exit(1);
1302         }
1303 }
1304
1305 struct str_list {
1306         char **list;
1307         int num;
1308         int max;
1309 };
1310
1311 static errcode_t init_list(struct str_list *sl)
1312 {
1313         sl->num = 0;
1314         sl->max = 1;
1315         sl->list = malloc((sl->max+1) * sizeof(char *));
1316         if (!sl->list)
1317                 return ENOMEM;
1318         sl->list[0] = 0;
1319         return 0;
1320 }
1321
1322 static errcode_t push_string(struct str_list *sl, const char *str)
1323 {
1324         char **new_list;
1325
1326         if (sl->num >= sl->max) {
1327                 sl->max += 2;
1328                 new_list = realloc(sl->list, (sl->max+1) * sizeof(char *));
1329                 if (!new_list)
1330                         return ENOMEM;
1331                 sl->list = new_list;
1332         }
1333         sl->list[sl->num] = malloc(strlen(str)+1);
1334         if (sl->list[sl->num] == 0)
1335                 return ENOMEM;
1336         strcpy(sl->list[sl->num], str);
1337         sl->num++;
1338         sl->list[sl->num] = 0;
1339         return 0;
1340 }
1341
1342 static void print_str_list(char **list)
1343 {
1344         char **cpp;
1345
1346         for (cpp = list; *cpp; cpp++) {
1347                 printf("'%s'", *cpp);
1348                 if (cpp[1])
1349                         fputs(", ", stdout);
1350         }
1351         fputc('\n', stdout);
1352 }
1353
1354 /*
1355  * Return TRUE if the profile has the given subsection
1356  */
1357 static int profile_has_subsection(profile_t prof, const char *section,
1358                                   const char *subsection)
1359 {
1360         void                    *state;
1361         const char              *names[4];
1362         char                    *name;
1363         int                     ret = 0;
1364
1365         names[0] = section;
1366         names[1] = subsection;
1367         names[2] = 0;
1368
1369         if (profile_iterator_create(prof, names,
1370                                     PROFILE_ITER_LIST_SECTION |
1371                                     PROFILE_ITER_RELATIONS_ONLY, &state))
1372                 return 0;
1373
1374         if ((profile_iterator(&state, &name, 0) == 0) && name) {
1375                 free(name);
1376                 ret = 1;
1377         }
1378
1379         profile_iterator_free(&state);
1380         return ret;
1381 }
1382
1383 static char **parse_fs_type(const char *fs_type,
1384                             const char *usage_types,
1385                             struct ext2_super_block *sb,
1386                             blk64_t fs_blocks_count,
1387                             char *progname)
1388 {
1389         const char      *ext_type = 0;
1390         char            *parse_str;
1391         char            *profile_type = 0;
1392         char            *cp, *t;
1393         const char      *size_type;
1394         struct str_list list;
1395         unsigned long long meg;
1396         int             is_hurd = for_hurd(creator_os);
1397
1398         if (init_list(&list))
1399                 return 0;
1400
1401         if (fs_type)
1402                 ext_type = fs_type;
1403         else if (is_hurd)
1404                 ext_type = "ext2";
1405         else if (!strcmp(program_name, "mke3fs"))
1406                 ext_type = "ext3";
1407         else if (!strcmp(program_name, "mke4fs"))
1408                 ext_type = "ext4";
1409         else if (progname) {
1410                 ext_type = strrchr(progname, '/');
1411                 if (ext_type)
1412                         ext_type++;
1413                 else
1414                         ext_type = progname;
1415
1416                 if (!strncmp(ext_type, "mkfs.", 5)) {
1417                         ext_type += 5;
1418                         if (ext_type[0] == 0)
1419                                 ext_type = 0;
1420                 } else
1421                         ext_type = 0;
1422         }
1423
1424         if (!ext_type) {
1425                 profile_get_string(profile, "defaults", "fs_type", 0,
1426                                    "ext2", &profile_type);
1427                 ext_type = profile_type;
1428                 if (!strcmp(ext_type, "ext2") && (journal_size != 0))
1429                         ext_type = "ext3";
1430         }
1431
1432
1433         if (!profile_has_subsection(profile, "fs_types", ext_type) &&
1434             strcmp(ext_type, "ext2")) {
1435                 printf(_("\nYour mke2fs.conf file does not define the "
1436                          "%s filesystem type.\n"), ext_type);
1437                 if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") ||
1438                     !strcmp(ext_type, "ext4dev")) {
1439                         printf("%s", _("You probably need to install an "
1440                                        "updated mke2fs.conf file.\n\n"));
1441                 }
1442                 if (!force) {
1443                         printf("%s", _("Aborting...\n"));
1444                         exit(1);
1445                 }
1446         }
1447
1448         meg = (1024 * 1024) / EXT2_BLOCK_SIZE(sb);
1449         if (fs_blocks_count < 3 * meg)
1450                 size_type = "floppy";
1451         else if (fs_blocks_count < 512 * meg)
1452                 size_type = "small";
1453         else if (fs_blocks_count < 4 * 1024 * 1024 * meg)
1454                 size_type = "default";
1455         else if (fs_blocks_count < 16 * 1024 * 1024 * meg)
1456                 size_type = "big";
1457         else
1458                 size_type = "huge";
1459
1460         if (!usage_types)
1461                 usage_types = size_type;
1462
1463         parse_str = malloc(strlen(usage_types)+1);
1464         if (!parse_str) {
1465                 free(profile_type);
1466                 free(list.list);
1467                 return 0;
1468         }
1469         strcpy(parse_str, usage_types);
1470
1471         if (ext_type)
1472                 push_string(&list, ext_type);
1473         cp = parse_str;
1474         while (1) {
1475                 t = strchr(cp, ',');
1476                 if (t)
1477                         *t = '\0';
1478
1479                 if (*cp) {
1480                         if (profile_has_subsection(profile, "fs_types", cp))
1481                                 push_string(&list, cp);
1482                         else if (strcmp(cp, "default") != 0)
1483                                 fprintf(stderr,
1484                                         _("\nWarning: the fs_type %s is not "
1485                                           "defined in mke2fs.conf\n\n"),
1486                                         cp);
1487                 }
1488                 if (t)
1489                         cp = t+1;
1490                 else
1491                         break;
1492         }
1493         free(parse_str);
1494         free(profile_type);
1495         if (is_hurd)
1496                 push_string(&list, "hurd");
1497         return (list.list);
1498 }
1499
1500 char *get_string_from_profile(char **types, const char *opt,
1501                                      const char *def_val)
1502 {
1503         char *ret = 0;
1504         int i;
1505
1506         for (i=0; types[i]; i++);
1507         for (i-=1; i >=0 ; i--) {
1508                 profile_get_string(profile, "fs_types", types[i],
1509                                    opt, 0, &ret);
1510                 if (ret)
1511                         return ret;
1512         }
1513         profile_get_string(profile, "defaults", opt, 0, def_val, &ret);
1514         return (ret);
1515 }
1516
1517 int get_int_from_profile(char **types, const char *opt, int def_val)
1518 {
1519         int ret;
1520         char **cpp;
1521
1522         profile_get_integer(profile, "defaults", opt, 0, def_val, &ret);
1523         for (cpp = types; *cpp; cpp++)
1524                 profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret);
1525         return ret;
1526 }
1527
1528 static unsigned int get_uint_from_profile(char **types, const char *opt,
1529                                         unsigned int def_val)
1530 {
1531         unsigned int ret;
1532         char **cpp;
1533
1534         profile_get_uint(profile, "defaults", opt, 0, def_val, &ret);
1535         for (cpp = types; *cpp; cpp++)
1536                 profile_get_uint(profile, "fs_types", *cpp, opt, ret, &ret);
1537         return ret;
1538 }
1539
1540 static double get_double_from_profile(char **types, const char *opt,
1541                                       double def_val)
1542 {
1543         double ret;
1544         char **cpp;
1545
1546         profile_get_double(profile, "defaults", opt, 0, def_val, &ret);
1547         for (cpp = types; *cpp; cpp++)
1548                 profile_get_double(profile, "fs_types", *cpp, opt, ret, &ret);
1549         return ret;
1550 }
1551
1552 int get_bool_from_profile(char **types, const char *opt, int def_val)
1553 {
1554         int ret;
1555         char **cpp;
1556
1557         profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret);
1558         for (cpp = types; *cpp; cpp++)
1559                 profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret);
1560         return ret;
1561 }
1562
1563 extern const char *mke2fs_default_profile;
1564 static const char *default_files[] = { "<default>", 0 };
1565
1566 struct device_param {
1567         unsigned long min_io;           /* preferred minimum IO size */
1568         unsigned long opt_io;           /* optimal IO size */
1569         unsigned long alignment_offset; /* alignment offset wrt physical block size */
1570         unsigned int dax:1;             /* supports dax? */
1571 };
1572
1573 #define OPTIMIZED_STRIPE_WIDTH  512
1574 #define OPTIMIZED_STRIDE        512
1575
1576 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1577 /*
1578  * Sets the geometry of a device (stripe/stride), and returns the
1579  * device's alignment offset, if any, or a negative error.
1580  */
1581 static int get_device_geometry(const char *file,
1582                                unsigned int blocksize,
1583                                unsigned int psector_size,
1584                                struct device_param *dev_param)
1585 {
1586         int rc = -1;
1587         blkid_probe pr;
1588         blkid_topology tp;
1589         struct stat statbuf;
1590
1591         memset(dev_param, 0, sizeof(*dev_param));
1592
1593         /* Nothing to do for a regular file */
1594         if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode))
1595                 return 0;
1596
1597         pr = blkid_new_probe_from_filename(file);
1598         if (!pr)
1599                 goto out;
1600
1601         tp = blkid_probe_get_topology(pr);
1602         if (!tp)
1603                 goto out;
1604
1605         dev_param->min_io = blkid_topology_get_minimum_io_size(tp);
1606         if (dev_param->min_io > OPTIMIZED_STRIDE) {
1607                 fprintf(stdout,
1608                         "detected raid stride %lu too large, use optimum %lu\n",
1609                         dev_param->min_io, OPTIMIZED_STRIDE);
1610                 dev_param->min_io = OPTIMIZED_STRIDE;
1611         }
1612         dev_param->opt_io = blkid_topology_get_optimal_io_size(tp);
1613         if (dev_param->opt_io > OPTIMIZED_STRIPE_WIDTH) {
1614                 fprintf(stdout,
1615                         "detected raid stripe width %lu too large, use optimum %lu\n",
1616                         dev_param->opt_io, OPTIMIZED_STRIPE_WIDTH);
1617                 dev_param->opt_io = OPTIMIZED_STRIPE_WIDTH;
1618         }
1619         if ((dev_param->min_io == 0) && (psector_size > blocksize))
1620                 dev_param->min_io = psector_size;
1621         if ((dev_param->opt_io == 0) && dev_param->min_io > 0)
1622                 dev_param->opt_io = dev_param->min_io;
1623         if ((dev_param->opt_io == 0) && (psector_size > blocksize))
1624                 dev_param->opt_io = psector_size;
1625
1626         dev_param->alignment_offset = blkid_topology_get_alignment_offset(tp);
1627 #ifdef HAVE_BLKID_TOPOLOGY_GET_DAX
1628         dev_param->dax = blkid_topology_get_dax(tp);
1629 #endif
1630         rc = 0;
1631 out:
1632         blkid_free_probe(pr);
1633         return rc;
1634 }
1635 #endif
1636
1637 static void PRS(int argc, char *argv[])
1638 {
1639         int             b, c, flags;
1640         int             cluster_size = 0;
1641         char            *tmp, **cpp;
1642         int             explicit_fssize = 0;
1643         int             blocksize = 0;
1644         int             inode_ratio = 0;
1645         int             inode_size = 0;
1646         unsigned long   flex_bg_size = 0;
1647         double          reserved_ratio = -1.0;
1648         int             lsector_size = 0, psector_size = 0;
1649         int             show_version_only = 0, is_device = 0;
1650         unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */
1651         int             default_orphan_file = 0;
1652         int             default_csum_seed = 0;
1653         errcode_t       retval;
1654         char *          oldpath = getenv("PATH");
1655         char *          extended_opts = 0;
1656         char *          fs_type = 0;
1657         char *          usage_types = 0;
1658         /*
1659          * NOTE: A few words about fs_blocks_count and blocksize:
1660          *
1661          * Initially, blocksize is set to zero, which implies 1024.
1662          * If -b is specified, blocksize is updated to the user's value.
1663          *
1664          * Next, the device size or the user's "blocks" command line argument
1665          * is used to set fs_blocks_count; the units are blocksize.
1666          *
1667          * Later, if blocksize hasn't been set and the profile specifies a
1668          * blocksize, then blocksize is updated and fs_blocks_count is scaled
1669          * appropriately.  Note the change in units!
1670          *
1671          * Finally, we complain about fs_blocks_count > 2^32 on a non-64bit fs.
1672          */
1673         blk64_t         fs_blocks_count = 0;
1674         int             s_opt = -1, r_opt = -1;
1675         char            *fs_features = 0;
1676         int             fs_features_size = 0;
1677         int             use_bsize;
1678         char            *newpath;
1679         int             pathlen = sizeof(PATH_SET) + 1;
1680 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1681         struct device_param dev_param;
1682 #endif
1683
1684         if (oldpath)
1685                 pathlen += strlen(oldpath);
1686         newpath = malloc(pathlen);
1687         if (!newpath) {
1688                 fprintf(stderr, "%s",
1689                         _("Couldn't allocate memory for new PATH.\n"));
1690                 exit(1);
1691         }
1692         strcpy(newpath, PATH_SET);
1693
1694         /* Update our PATH to include /sbin  */
1695         if (oldpath) {
1696                 strcat (newpath, ":");
1697                 strcat (newpath, oldpath);
1698         }
1699         putenv (newpath);
1700
1701         /* Determine the system page size if possible */
1702 #ifdef HAVE_SYSCONF
1703 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
1704 #define _SC_PAGESIZE _SC_PAGE_SIZE
1705 #endif
1706 #ifdef _SC_PAGESIZE
1707         {
1708                 long sysval = sysconf(_SC_PAGESIZE);
1709
1710                 if (sysval > 0)
1711                         sys_page_size = sysval;
1712         }
1713 #endif /* _SC_PAGESIZE */
1714 #endif /* HAVE_SYSCONF */
1715
1716         if ((tmp = getenv("MKE2FS_CONFIG")) != NULL)
1717                 config_fn[0] = tmp;
1718         profile_set_syntax_err_cb(syntax_err_report);
1719         retval = profile_init(config_fn, &profile);
1720         if (retval == ENOENT) {
1721                 retval = profile_init(default_files, &profile);
1722                 if (retval)
1723                         goto profile_error;
1724                 retval = profile_set_default(profile, mke2fs_default_profile);
1725                 if (retval)
1726                         goto profile_error;
1727         } else if (retval) {
1728 profile_error:
1729                 fprintf(stderr, _("Couldn't init profile successfully"
1730                                   " (error: %ld).\n"), retval);
1731                 exit(1);
1732         }
1733
1734         setbuf(stdout, NULL);
1735         setbuf(stderr, NULL);
1736         add_error_table(&et_ext2_error_table);
1737         add_error_table(&et_prof_error_table);
1738         memset(&fs_param, 0, sizeof(struct ext2_super_block));
1739         fs_param.s_rev_level = 1;  /* Create revision 1 filesystems now */
1740
1741         if (ext2fs_is_before_linux_ver(2, 2, 0))
1742                 fs_param.s_rev_level = 0;
1743
1744         if (argc && *argv) {
1745                 program_name = get_progname(*argv);
1746
1747                 /* If called as mkfs.ext3, create a journal inode */
1748                 if (!strcmp(program_name, "mkfs.ext3") ||
1749                     !strcmp(program_name, "mke3fs"))
1750                         journal_size = -1;
1751         }
1752
1753         while ((c = getopt (argc, argv,
1754                     "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) {
1755                 switch (c) {
1756                 case 'b':
1757                         blocksize = parse_num_blocks2(optarg, -1);
1758                         b = (blocksize > 0) ? blocksize : -blocksize;
1759                         if (b < EXT2_MIN_BLOCK_SIZE ||
1760                             b > EXT2_MAX_BLOCK_SIZE) {
1761                                 com_err(program_name, 0,
1762                                         _("invalid block size - %s"), optarg);
1763                                 exit(1);
1764                         }
1765                         if (blocksize > 4096)
1766                                 fprintf(stderr, _("Warning: blocksize %d not "
1767                                                   "usable on most systems.\n"),
1768                                         blocksize);
1769                         if (blocksize > 0)
1770                                 fs_param.s_log_block_size =
1771                                         int_log2(blocksize >>
1772                                                  EXT2_MIN_BLOCK_LOG_SIZE);
1773                         break;
1774                 case 'c':       /* Check for bad blocks */
1775                         cflag++;
1776                         break;
1777                 case 'C':
1778                         cluster_size = parse_num_blocks2(optarg, -1);
1779                         if (cluster_size <= EXT2_MIN_CLUSTER_SIZE ||
1780                             cluster_size > EXT2_MAX_CLUSTER_SIZE) {
1781                                 com_err(program_name, 0,
1782                                         _("invalid cluster size - %s"),
1783                                         optarg);
1784                                 exit(1);
1785                         }
1786                         break;
1787                 case 'd':
1788                         src_root_dir = optarg;
1789                         break;
1790                 case 'D':
1791                         direct_io = 1;
1792                         break;
1793                 case 'R':
1794                         com_err(program_name, 0, "%s",
1795                                 _("'-R' is deprecated, use '-E' instead"));
1796                         /* fallthrough */
1797                 case 'E':
1798                         extended_opts = optarg;
1799                         break;
1800                 case 'e':
1801                         if (strcmp(optarg, "continue") == 0)
1802                                 errors_behavior = EXT2_ERRORS_CONTINUE;
1803                         else if (strcmp(optarg, "remount-ro") == 0)
1804                                 errors_behavior = EXT2_ERRORS_RO;
1805                         else if (strcmp(optarg, "panic") == 0)
1806                                 errors_behavior = EXT2_ERRORS_PANIC;
1807                         else {
1808                                 com_err(program_name, 0,
1809                                         _("bad error behavior - %s"),
1810                                         optarg);
1811                                 usage();
1812                         }
1813                         break;
1814                 case 'F':
1815                         force++;
1816                         break;
1817                 case 'g':
1818                         fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
1819                         if (*tmp) {
1820                                 com_err(program_name, 0, "%s",
1821                                 _("Illegal number for blocks per group"));
1822                                 exit(1);
1823                         }
1824                         if ((fs_param.s_blocks_per_group % 8) != 0) {
1825                                 com_err(program_name, 0, "%s",
1826                                 _("blocks per group must be multiple of 8"));
1827                                 exit(1);
1828                         }
1829                         break;
1830                 case 'G':
1831                         flex_bg_size = strtoul(optarg, &tmp, 0);
1832                         if (*tmp) {
1833                                 com_err(program_name, 0, "%s",
1834                                         _("Illegal number for flex_bg size"));
1835                                 exit(1);
1836                         }
1837                         if (flex_bg_size < 1 ||
1838                             (flex_bg_size & (flex_bg_size-1)) != 0) {
1839                                 com_err(program_name, 0, "%s",
1840                                         _("flex_bg size must be a power of 2"));
1841                                 exit(1);
1842                         }
1843                         if (flex_bg_size > MAX_32_NUM) {
1844                                 com_err(program_name, 0,
1845                                 _("flex_bg size (%lu) must be less than"
1846                                 " or equal to 2^31"), flex_bg_size);
1847                                 exit(1);
1848                         }
1849                         break;
1850                 case 'i':
1851                         inode_ratio = parse_num_blocks(optarg, -1);
1852                         if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
1853                             inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024) {
1854                                 com_err(program_name, 0,
1855                                         _("invalid inode ratio %s (min %d/max %d)"),
1856                                         optarg, EXT2_MIN_BLOCK_SIZE,
1857                                         EXT2_MAX_BLOCK_SIZE * 1024);
1858                                 exit(1);
1859                         }
1860                         break;
1861                 case 'I':
1862                         inode_size = strtoul(optarg, &tmp, 0);
1863                         if (*tmp) {
1864                                 com_err(program_name, 0,
1865                                         _("invalid inode size - %s"), optarg);
1866                                 exit(1);
1867                         }
1868                         break;
1869                 case 'j':
1870                         if (!journal_size)
1871                                 journal_size = -1;
1872                         if (!journal_fc_size)
1873                                 journal_fc_size = -1;
1874                         break;
1875                 case 'J':
1876                         parse_journal_opts(optarg);
1877                         break;
1878                 case 'K':
1879                         fprintf(stderr, "%s",
1880                                 _("Warning: -K option is deprecated and "
1881                                   "should not be used anymore. Use "
1882                                   "\'-E nodiscard\' extended option "
1883                                   "instead!\n"));
1884                         discard = 0;
1885                         break;
1886                 case 'l':
1887                         bad_blocks_filename = realloc(bad_blocks_filename,
1888                                                       strlen(optarg) + 1);
1889                         if (!bad_blocks_filename) {
1890                                 com_err(program_name, ENOMEM, "%s",
1891                                         _("in malloc for bad_blocks_filename"));
1892                                 exit(1);
1893                         }
1894                         strcpy(bad_blocks_filename, optarg);
1895                         break;
1896                 case 'L':
1897                         volume_label = optarg;
1898                         if (strlen(volume_label) > EXT2_LABEL_LEN) {
1899                                 volume_label[EXT2_LABEL_LEN] = '\0';
1900                                 fprintf(stderr, _("Warning: label too long; will be truncated to '%s'\n\n"),
1901                                         volume_label);
1902                         }
1903                         break;
1904                 case 'm':
1905                         reserved_ratio = strtod(optarg, &tmp);
1906                         if ( *tmp || reserved_ratio > 50 ||
1907                              reserved_ratio < 0) {
1908                                 com_err(program_name, 0,
1909                                         _("invalid reserved blocks percent - %s"),
1910                                         optarg);
1911                                 exit(1);
1912                         }
1913                         break;
1914                 case 'M':
1915                         mount_dir = optarg;
1916                         break;
1917                 case 'n':
1918                         noaction++;
1919                         break;
1920                 case 'N':
1921                         num_inodes = strtoul(optarg, &tmp, 0);
1922                         if (*tmp) {
1923                                 com_err(program_name, 0,
1924                                         _("bad num inodes - %s"), optarg);
1925                                         exit(1);
1926                         }
1927                         break;
1928                 case 'o':
1929                         creator_os = optarg;
1930                         break;
1931                 case 'O':
1932                         retval = ext2fs_resize_mem(fs_features_size,
1933                                    fs_features_size + 1 + strlen(optarg),
1934                                                    &fs_features);
1935                         if (retval) {
1936                                 com_err(program_name, retval,
1937                                      _("while allocating fs_feature string"));
1938                                 exit(1);
1939                         }
1940                         if (fs_features_size)
1941                                 strcat(fs_features, ",");
1942                         else
1943                                 fs_features[0] = 0;
1944                         strcat(fs_features, optarg);
1945                         fs_features_size += 1 + strlen(optarg);
1946                         break;
1947                 case 'q':
1948                         quiet = 1;
1949                         break;
1950                 case 'r':
1951                         r_opt = strtoul(optarg, &tmp, 0);
1952                         if (*tmp) {
1953                                 com_err(program_name, 0,
1954                                         _("bad revision level - %s"), optarg);
1955                                 exit(1);
1956                         }
1957                         if (r_opt > EXT2_MAX_SUPP_REV) {
1958                                 com_err(program_name, EXT2_ET_REV_TOO_HIGH,
1959                                         _("while trying to create revision %d"), r_opt);
1960                                 exit(1);
1961                         }
1962                         fs_param.s_rev_level = r_opt;
1963                         break;
1964                 case 's':       /* deprecated */
1965                         s_opt = atoi(optarg);
1966                         break;
1967                 case 'S':
1968                         super_only = 1;
1969                         break;
1970                 case 't':
1971                         if (fs_type) {
1972                                 com_err(program_name, 0, "%s",
1973                                     _("The -t option may only be used once"));
1974                                 exit(1);
1975                         }
1976                         fs_type = strdup(optarg);
1977                         break;
1978                 case 'T':
1979                         if (usage_types) {
1980                                 com_err(program_name, 0, "%s",
1981                                     _("The -T option may only be used once"));
1982                                 exit(1);
1983                         }
1984                         usage_types = strdup(optarg);
1985                         break;
1986                 case 'U':
1987                         fs_uuid = optarg;
1988                         break;
1989                 case 'v':
1990                         verbose = 1;
1991                         break;
1992                 case 'V':
1993                         /* Print version number and exit */
1994                         show_version_only++;
1995                         break;
1996                 case 'z':
1997                         undo_file = optarg;
1998                         break;
1999                 default:
2000                         usage();
2001                 }
2002         }
2003         if ((optind == argc) && !show_version_only)
2004                 usage();
2005         device_name = argv[optind++];
2006
2007         if (!quiet || show_version_only)
2008                 fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION,
2009                          E2FSPROGS_DATE);
2010
2011         if (show_version_only) {
2012                 fprintf(stderr, _("\tUsing %s\n"),
2013                         error_message(EXT2_ET_BASE));
2014                 exit(0);
2015         }
2016
2017         /*
2018          * If there's no blocksize specified and there is a journal
2019          * device, use it to figure out the blocksize
2020          */
2021         if (blocksize <= 0 && journal_device) {
2022                 ext2_filsys     jfs;
2023                 io_manager      io_ptr;
2024
2025 #ifdef CONFIG_TESTIO_DEBUG
2026                 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
2027                         io_ptr = test_io_manager;
2028                         test_io_backing_manager = default_io_manager;
2029                 } else
2030 #endif
2031                         io_ptr = default_io_manager;
2032                 retval = ext2fs_open(journal_device,
2033                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
2034                                      0, io_ptr, &jfs);
2035                 if (retval) {
2036                         com_err(program_name, retval,
2037                                 _("while trying to open journal device %s\n"),
2038                                 journal_device);
2039                         exit(1);
2040                 }
2041                 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
2042                         com_err(program_name, 0,
2043                                 _("Journal dev blocksize (%d) smaller than "
2044                                   "minimum blocksize %d\n"), jfs->blocksize,
2045                                 -blocksize);
2046                         exit(1);
2047                 }
2048                 blocksize = jfs->blocksize;
2049                 printf(_("Using journal device's blocksize: %d\n"), blocksize);
2050                 fs_param.s_log_block_size =
2051                         int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
2052                 ext2fs_close_free(&jfs);
2053         }
2054
2055         if (optind < argc) {
2056                 fs_blocks_count = parse_num_blocks2(argv[optind++],
2057                                                    fs_param.s_log_block_size);
2058                 if (!fs_blocks_count) {
2059                         com_err(program_name, 0,
2060                                 _("invalid blocks '%s' on device '%s'"),
2061                                 argv[optind - 1], device_name);
2062                         exit(1);
2063                 }
2064         }
2065         if (optind < argc)
2066                 usage();
2067
2068         profile_get_integer(profile, "options", "sync_kludge", 0, 0,
2069                             &sync_kludge);
2070         tmp = getenv("MKE2FS_SYNC");
2071         if (tmp)
2072                 sync_kludge = atoi(tmp);
2073
2074         profile_get_integer(profile, "options", "proceed_delay", 0, 0,
2075                             &proceed_delay);
2076
2077         if (fs_blocks_count)
2078                 explicit_fssize = 1;
2079
2080         check_mount(device_name, force, _("filesystem"));
2081
2082         /* Determine the size of the device (if possible) */
2083         if (noaction && fs_blocks_count) {
2084                 dev_size = fs_blocks_count;
2085                 retval = 0;
2086         } else
2087                 retval = ext2fs_get_device_size2(device_name,
2088                                                  EXT2_BLOCK_SIZE(&fs_param),
2089                                                  &dev_size);
2090         if (retval == ENOENT) {
2091                 int fd;
2092
2093                 if (!explicit_fssize) {
2094                         fprintf(stderr,
2095                                 _("The file %s does not exist and no "
2096                                   "size was specified.\n"), device_name);
2097                         exit(1);
2098                 }
2099                 fd = ext2fs_open_file(device_name,
2100                                       O_CREAT | O_WRONLY, 0666);
2101                 if (fd < 0) {
2102                         retval = errno;
2103                 } else {
2104                         dev_size = 0;
2105                         retval = 0;
2106                         close(fd);
2107                         printf(_("Creating regular file %s\n"), device_name);
2108                 }
2109         }
2110         if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
2111                 com_err(program_name, retval, "%s",
2112                         _("while trying to determine filesystem size"));
2113                 exit(1);
2114         }
2115         if (!fs_blocks_count) {
2116                 if (retval == EXT2_ET_UNIMPLEMENTED) {
2117                         com_err(program_name, 0, "%s",
2118                                 _("Couldn't determine device size; you "
2119                                 "must specify\nthe size of the "
2120                                 "filesystem\n"));
2121                         exit(1);
2122                 } else {
2123                         if (dev_size == 0) {
2124                                 com_err(program_name, 0, "%s",
2125                                 _("Device size reported to be zero.  "
2126                                   "Invalid partition specified, or\n\t"
2127                                   "partition table wasn't reread "
2128                                   "after running fdisk, due to\n\t"
2129                                   "a modified partition being busy "
2130                                   "and in use.  You may need to reboot\n\t"
2131                                   "to re-read your partition table.\n"
2132                                   ));
2133                                 exit(1);
2134                         }
2135                         fs_blocks_count = dev_size;
2136                         if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param))
2137                                 fs_blocks_count &= ~((blk64_t) ((sys_page_size /
2138                                              EXT2_BLOCK_SIZE(&fs_param))-1));
2139                 }
2140         } else if (!force && is_device && (fs_blocks_count > dev_size)) {
2141                 com_err(program_name, 0, "%s",
2142                         _("Filesystem larger than apparent device size."));
2143                 proceed_question(proceed_delay);
2144         }
2145
2146         if (!fs_type)
2147                 profile_get_string(profile, "devices", device_name,
2148                                    "fs_type", 0, &fs_type);
2149         if (!usage_types)
2150                 profile_get_string(profile, "devices", device_name,
2151                                    "usage_types", 0, &usage_types);
2152         if (!creator_os)
2153                 profile_get_string(profile, "defaults", "creator_os", 0,
2154                                    0, &creator_os);
2155
2156         /*
2157          * We have the file system (or device) size, so we can now
2158          * determine the appropriate file system types so the fs can
2159          * be appropriately configured.
2160          */
2161         fs_types = parse_fs_type(fs_type, usage_types, &fs_param,
2162                                  fs_blocks_count, argv[0]);
2163         if (!fs_types) {
2164                 fprintf(stderr, "%s", _("Failed to parse fs types list\n"));
2165                 exit(1);
2166         }
2167
2168         /* Figure out what features should be enabled */
2169
2170         tmp = NULL;
2171         if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) {
2172                 tmp = get_string_from_profile(fs_types, "base_features",
2173                       "sparse_super,large_file,filetype,resize_inode,dir_index");
2174                 edit_feature(tmp, &fs_param.s_feature_compat);
2175                 free(tmp);
2176
2177                 /* And which mount options as well */
2178                 tmp = get_string_from_profile(fs_types, "default_mntopts",
2179                                               "acl,user_xattr");
2180                 edit_mntopts(tmp, &fs_param.s_default_mount_opts);
2181                 if (tmp)
2182                         free(tmp);
2183
2184                 for (cpp = fs_types; *cpp; cpp++) {
2185                         tmp = NULL;
2186                         profile_get_string(profile, "fs_types", *cpp,
2187                                            "features", "", &tmp);
2188                         if (tmp && *tmp)
2189                                 edit_feature(tmp, &fs_param.s_feature_compat);
2190                         if (tmp)
2191                                 free(tmp);
2192                 }
2193                 tmp = get_string_from_profile(fs_types, "default_features",
2194                                               "");
2195         }
2196         /* Mask off features which aren't supported by the Hurd */
2197         if (for_hurd(creator_os)) {
2198                 ext2fs_clear_feature_filetype(&fs_param);
2199                 ext2fs_clear_feature_huge_file(&fs_param);
2200                 ext2fs_clear_feature_metadata_csum(&fs_param);
2201                 ext2fs_clear_feature_ea_inode(&fs_param);
2202                 ext2fs_clear_feature_casefold(&fs_param);
2203         }
2204         if (!fs_features && tmp)
2205                 edit_feature(tmp, &fs_param.s_feature_compat);
2206         /*
2207          * Now all the defaults are incorporated in fs_param. Check the state
2208          * of orphan_file feature so that we know whether we should silently
2209          * disabled in case journal gets disabled.
2210          */
2211         if (ext2fs_has_feature_orphan_file(&fs_param))
2212                 default_orphan_file = 1;
2213         if (ext2fs_has_feature_csum_seed(&fs_param))
2214                 default_csum_seed = 1;
2215         if (fs_features)
2216                 edit_feature(fs_features, &fs_param.s_feature_compat);
2217         /* Silently disable orphan_file if user chose fs without journal */
2218         if (default_orphan_file && !ext2fs_has_feature_journal(&fs_param))
2219                 ext2fs_clear_feature_orphan_file(&fs_param);
2220         if (default_csum_seed && !ext2fs_has_feature_metadata_csum(&fs_param))
2221                 ext2fs_clear_feature_csum_seed(&fs_param);
2222         if (tmp)
2223                 free(tmp);
2224         (void) ext2fs_free_mem(&fs_features);
2225         /*
2226          * If the user specified features incompatible with the Hurd, complain
2227          */
2228         if (for_hurd(creator_os)) {
2229                 if (ext2fs_has_feature_filetype(&fs_param)) {
2230                         fprintf(stderr, "%s", _("The HURD does not support the "
2231                                                 "filetype feature.\n"));
2232                         exit(1);
2233                 }
2234                 if (ext2fs_has_feature_huge_file(&fs_param)) {
2235                         fprintf(stderr, "%s", _("The HURD does not support the "
2236                                                 "huge_file feature.\n"));
2237                         exit(1);
2238                 }
2239                 if (ext2fs_has_feature_metadata_csum(&fs_param)) {
2240                         fprintf(stderr, "%s", _("The HURD does not support the "
2241                                                 "metadata_csum feature.\n"));
2242                         exit(1);
2243                 }
2244                 if (ext2fs_has_feature_ea_inode(&fs_param)) {
2245                         fprintf(stderr, "%s", _("The HURD does not support the "
2246                                                 "ea_inode feature.\n"));
2247                         exit(1);
2248                 }
2249         }
2250
2251         /* Get the hardware sector sizes, if available */
2252         retval = ext2fs_get_device_sectsize(device_name, &lsector_size);
2253         if (retval) {
2254                 com_err(program_name, retval, "%s",
2255                         _("while trying to determine hardware sector size"));
2256                 exit(1);
2257         }
2258         retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size);
2259         if (retval) {
2260                 com_err(program_name, retval, "%s",
2261                         _("while trying to determine physical sector size"));
2262                 exit(1);
2263         }
2264
2265         tmp = getenv("MKE2FS_DEVICE_SECTSIZE");
2266         if (tmp != NULL)
2267                 lsector_size = atoi(tmp);
2268         tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE");
2269         if (tmp != NULL)
2270                 psector_size = atoi(tmp);
2271
2272         /* Older kernels may not have physical/logical distinction */
2273         if (!psector_size)
2274                 psector_size = lsector_size;
2275
2276         if (blocksize <= 0) {
2277                 use_bsize = get_int_from_profile(fs_types, "blocksize", 4096);
2278
2279                 if (use_bsize == -1) {
2280                         use_bsize = sys_page_size;
2281                         if (ext2fs_is_before_linux_ver(2, 6, 0) &&
2282                             use_bsize > 4096)
2283                                 use_bsize = 4096;
2284                 }
2285                 if (lsector_size && use_bsize < lsector_size)
2286                         use_bsize = lsector_size;
2287                 if ((blocksize < 0) && (use_bsize < (-blocksize)))
2288                         use_bsize = -blocksize;
2289                 blocksize = use_bsize;
2290                 fs_blocks_count /= (blocksize / 1024);
2291         } else {
2292                 if (blocksize < lsector_size) {                 /* Impossible */
2293                         com_err(program_name, EINVAL, "%s",
2294                                 _("while setting blocksize; too small "
2295                                   "for device\n"));
2296                         exit(1);
2297                 } else if ((blocksize < psector_size) &&
2298                            (psector_size <= sys_page_size)) {   /* Suboptimal */
2299                         fprintf(stderr, _("Warning: specified blocksize %d is "
2300                                 "less than device physical sectorsize %d\n"),
2301                                 blocksize, psector_size);
2302                 }
2303         }
2304
2305         fs_param.s_log_block_size =
2306                 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
2307
2308         /*
2309          * We now need to do a sanity check of fs_blocks_count for
2310          * 32-bit vs 64-bit block number support.
2311          */
2312         if (fs_blocks_count > MAX_32_NUM) {
2313                 if (!ext2fs_has_feature_64bit(&fs_param) &&
2314                     get_bool_from_profile(fs_types, "auto_64-bit_support", 0))
2315                         ext2fs_set_feature_64bit(&fs_param);
2316
2317                 if (ext2fs_has_feature_64bit(&fs_param)) {
2318                         ext2fs_clear_feature_resize_inode(&fs_param);
2319                 } else {
2320                         fprintf(stderr,
2321                                 _("%s: Size of device (0x%llx blocks) %s "
2322                                   "too big to be expressed\n\t"
2323                                   "in 32 bits using a blocksize of %d.\n"),
2324                                 program_name,
2325                                 (unsigned long long) fs_blocks_count,
2326                                 device_name, EXT2_BLOCK_SIZE(&fs_param));
2327                         exit(1);
2328                 }
2329         }
2330
2331         /*
2332          * Guard against group descriptor count overflowing... Mostly to avoid
2333          * strange results for absurdly large devices.  This is in log2:
2334          * (blocksize) * (bits per byte) * (maximum number of block groups)
2335          */
2336         if (fs_blocks_count >
2337             (1ULL << (EXT2_BLOCK_SIZE_BITS(&fs_param) + 3 + 32)) - 1) {
2338                 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2339                                   "too big to create\n\t"
2340                                   "a filesystem using a blocksize of %d.\n"),
2341                         program_name, (unsigned long long) fs_blocks_count,
2342                         device_name, EXT2_BLOCK_SIZE(&fs_param));
2343                 exit(1);
2344         }
2345
2346         ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2347
2348         if (ext2fs_has_feature_journal_dev(&fs_param)) {
2349                 int i;
2350
2351                 for (i=0; fs_types[i]; i++) {
2352                         free(fs_types[i]);
2353                         fs_types[i] = 0;
2354                 }
2355                 fs_types[0] = strdup("journal");
2356                 fs_types[1] = 0;
2357         }
2358
2359         if (verbose) {
2360                 fputs(_("fs_types for mke2fs.conf resolution: "), stdout);
2361                 print_str_list(fs_types);
2362         }
2363
2364         if (r_opt == EXT2_GOOD_OLD_REV &&
2365             (fs_param.s_feature_compat || fs_param.s_feature_incompat ||
2366              fs_param.s_feature_ro_compat)) {
2367                 fprintf(stderr, "%s", _("Filesystem features not supported "
2368                                         "with revision 0 filesystems\n"));
2369                 exit(1);
2370         }
2371
2372         if (s_opt > 0) {
2373                 if (r_opt == EXT2_GOOD_OLD_REV) {
2374                         fprintf(stderr, "%s",
2375                                 _("Sparse superblocks not supported "
2376                                   "with revision 0 filesystems\n"));
2377                         exit(1);
2378                 }
2379                 ext2fs_set_feature_sparse_super(&fs_param);
2380         } else if (s_opt == 0)
2381                 ext2fs_clear_feature_sparse_super(&fs_param);
2382
2383         if (journal_size != 0) {
2384                 if (r_opt == EXT2_GOOD_OLD_REV) {
2385                         fprintf(stderr, "%s", _("Journals not supported with "
2386                                                 "revision 0 filesystems\n"));
2387                         exit(1);
2388                 }
2389                 ext2fs_set_feature_journal(&fs_param);
2390         }
2391
2392         /* Get reserved_ratio from profile if not specified on cmd line. */
2393         if (reserved_ratio < 0.0) {
2394                 reserved_ratio = get_double_from_profile(
2395                                         fs_types, "reserved_ratio", 5.0);
2396                 if (reserved_ratio > 50 || reserved_ratio < 0) {
2397                         com_err(program_name, 0,
2398                                 _("invalid reserved blocks percent - %lf"),
2399                                 reserved_ratio);
2400                         exit(1);
2401                 }
2402         }
2403
2404         if (ext2fs_has_feature_journal_dev(&fs_param)) {
2405                 reserved_ratio = 0;
2406                 fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
2407                 fs_param.s_feature_compat = 0;
2408                 fs_param.s_feature_ro_compat &=
2409                                         EXT4_FEATURE_RO_COMPAT_METADATA_CSUM;
2410         }
2411
2412         /* Check the user's mkfs options for 64bit */
2413         if (fs_blocks_count > MAX_32_NUM &&
2414             !ext2fs_has_feature_extents(&fs_param)) {
2415                 printf("%s", _("Extents MUST be enabled for filesystems with "
2416                                "over 2^32 blocks. Use '-O extents' to fix.\n"));
2417                 exit(1);
2418         }
2419
2420         /* Set first meta blockgroup via an environment variable */
2421         /* (this is mostly for debugging purposes) */
2422         if (ext2fs_has_feature_meta_bg(&fs_param) &&
2423             (tmp = getenv("MKE2FS_FIRST_META_BG")))
2424                 fs_param.s_first_meta_bg = atoi(tmp);
2425         if (ext2fs_has_feature_bigalloc(&fs_param)) {
2426                 if (!cluster_size)
2427                         cluster_size = get_int_from_profile(fs_types,
2428                                                             "cluster_size",
2429                                                             blocksize*16);
2430                 fs_param.s_log_cluster_size =
2431                         int_log2(cluster_size >> EXT2_MIN_CLUSTER_LOG_SIZE);
2432                 if (fs_param.s_log_cluster_size &&
2433                     fs_param.s_log_cluster_size < fs_param.s_log_block_size) {
2434                         com_err(program_name, 0, "%s",
2435                                 _("The cluster size may not be "
2436                                   "smaller than the block size.\n"));
2437                         exit(1);
2438                 }
2439         } else if (cluster_size) {
2440                 com_err(program_name, 0, "%s",
2441                         _("specifying a cluster size requires the "
2442                           "bigalloc feature"));
2443                 exit(1);
2444         } else
2445                 fs_param.s_log_cluster_size = fs_param.s_log_block_size;
2446
2447         if (inode_ratio == 0) {
2448                 inode_ratio = get_int_from_profile(fs_types, "inode_ratio",
2449                                                    8192);
2450                 if (inode_ratio < blocksize)
2451                         inode_ratio = blocksize;
2452                 if (inode_ratio < EXT2_CLUSTER_SIZE(&fs_param))
2453                         inode_ratio = EXT2_CLUSTER_SIZE(&fs_param);
2454         }
2455
2456 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
2457         retval = get_device_geometry(device_name, blocksize,
2458                                      psector_size, &dev_param);
2459         if (retval < 0) {
2460                 fprintf(stderr,
2461                         _("warning: Unable to get device geometry for %s\n"),
2462                         device_name);
2463         } else {
2464                 /* setting stripe/stride to blocksize is pointless */
2465                 if (dev_param.min_io > (unsigned) blocksize)
2466                         fs_param.s_raid_stride = dev_param.min_io / blocksize;
2467                 if (dev_param.opt_io > (unsigned) blocksize) {
2468                         fs_param.s_raid_stripe_width =
2469                                                 dev_param.opt_io / blocksize;
2470                 }
2471
2472                 if (dev_param.alignment_offset) {
2473                         printf(_("%s alignment is offset by %lu bytes.\n"),
2474                                device_name, dev_param.alignment_offset);
2475                         printf(_("This may result in very poor performance, "
2476                                   "(re)-partitioning suggested.\n"));
2477                 }
2478
2479                 if (dev_param.dax && blocksize != sys_page_size) {
2480                         fprintf(stderr,
2481                                 _("%s is capable of DAX but current block size "
2482                                   "%u is different from system page size %u so "
2483                                   "filesystem will not support DAX.\n"),
2484                                 device_name, blocksize, sys_page_size);
2485                 }
2486         }
2487 #endif
2488
2489         num_backups = get_int_from_profile(fs_types, "num_backup_sb", 2);
2490
2491         blocksize = EXT2_BLOCK_SIZE(&fs_param);
2492
2493         /*
2494          * Initialize s_desc_size so that the parse_extended_opts()
2495          * can correctly handle "-E resize=NNN" if the 64-bit option
2496          * is set.
2497          */
2498         if (ext2fs_has_feature_64bit(&fs_param))
2499                 fs_param.s_desc_size = EXT2_MIN_DESC_SIZE_64BIT;
2500
2501         /* This check should happen beyond the last assignment to blocksize */
2502         if (blocksize > sys_page_size) {
2503                 if (!force) {
2504                         com_err(program_name, 0,
2505                                 _("%d-byte blocks too big for system (max %d)"),
2506                                 blocksize, sys_page_size);
2507                         proceed_question(proceed_delay);
2508                 }
2509                 fprintf(stderr, _("Warning: %d-byte blocks too big for system "
2510                                   "(max %d), forced to continue\n"),
2511                         blocksize, sys_page_size);
2512         }
2513
2514         /* Metadata checksumming wasn't totally stable before 3.18. */
2515         if (ext2fs_is_before_linux_ver(3, 18, 0) &&
2516             ext2fs_has_feature_metadata_csum(&fs_param))
2517                 fprintf(stderr, _("Suggestion: Use Linux kernel >= 3.18 for "
2518                         "improved stability of the metadata and journal "
2519                         "checksum features.\n"));
2520
2521         /*
2522          * On newer kernels we do have lazy_itable_init support. So pick the
2523          * right default in case ext4 module is not loaded.
2524          */
2525         if (ext2fs_is_before_linux_ver(2, 6, 37))
2526                 lazy_itable_init = 0;
2527         else
2528                 lazy_itable_init = 1;
2529
2530         if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0)
2531                 lazy_itable_init = 1;
2532
2533         lazy_itable_init = get_bool_from_profile(fs_types,
2534                                                  "lazy_itable_init",
2535                                                  lazy_itable_init);
2536         discard = get_bool_from_profile(fs_types, "discard" , discard);
2537         journal_flags |= get_bool_from_profile(fs_types,
2538                                                "lazy_journal_init", 0) ?
2539                                                EXT2_MKJOURNAL_LAZYINIT : 0;
2540         journal_flags |= EXT2_MKJOURNAL_NO_MNT_CHECK;
2541
2542         if (!journal_location_string)
2543                 journal_location_string = get_string_from_profile(fs_types,
2544                                                 "journal_location", "");
2545         if ((journal_location == ~0ULL) && journal_location_string &&
2546             *journal_location_string)
2547                 journal_location = parse_num_blocks2(journal_location_string,
2548                                                 fs_param.s_log_block_size);
2549         free(journal_location_string);
2550
2551         packed_meta_blocks = get_bool_from_profile(fs_types,
2552                                                    "packed_meta_blocks", 0);
2553         if (packed_meta_blocks)
2554                 journal_location = 0;
2555
2556         if (ext2fs_has_feature_casefold(&fs_param)) {
2557                 char *ef, *en = get_string_from_profile(fs_types,
2558                                                         "encoding", "utf8");
2559                 int encoding = e2p_str2encoding(en);
2560
2561                 if (encoding < 0) {
2562                         com_err(program_name, 0,
2563                                 _("Unknown filename encoding from profile: %s"),
2564                                 en);
2565                         exit(1);
2566                 }
2567                 free(en);
2568                 fs_param.s_encoding = encoding;
2569                 ef = get_string_from_profile(fs_types, "encoding_flags", NULL);
2570                 if (ef) {
2571                         if (e2p_str2encoding_flags(encoding, ef,
2572                                         &fs_param.s_encoding_flags) < 0) {
2573                                 com_err(program_name, 0,
2574                         _("Unknown encoding flags from profile: %s"), ef);
2575                                 exit(1);
2576                         }
2577                         free(ef);
2578                 } else
2579                         fs_param.s_encoding_flags =
2580                                 e2p_get_encoding_flags(encoding);
2581         }
2582
2583         /* Get options from profile */
2584         for (cpp = fs_types; *cpp; cpp++) {
2585                 tmp = NULL;
2586                 profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp);
2587                         if (tmp && *tmp)
2588                                 parse_extended_opts(&fs_param, tmp);
2589                         free(tmp);
2590         }
2591
2592         if (extended_opts)
2593                 parse_extended_opts(&fs_param, extended_opts);
2594
2595         if (explicit_fssize == 0 && offset > 0) {
2596                 fs_blocks_count -= offset / EXT2_BLOCK_SIZE(&fs_param);
2597                 ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2598                 fprintf(stderr,
2599                         _("\nWarning: offset specified without an "
2600                           "explicit file system size.\n"
2601                           "Creating a file system with %llu blocks "
2602                           "but this might\n"
2603                           "not be what you want.\n\n"),
2604                         (unsigned long long) fs_blocks_count);
2605         }
2606
2607         if (quotatype_bits & QUOTA_PRJ_BIT)
2608                 ext2fs_set_feature_project(&fs_param);
2609
2610         if (ext2fs_has_feature_project(&fs_param)) {
2611                 quotatype_bits |= QUOTA_PRJ_BIT;
2612                 if (inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2613                         com_err(program_name, 0,
2614                                 _("%d byte inodes are too small for "
2615                                   "project quota"),
2616                                 inode_size);
2617                         exit(1);
2618                 }
2619                 if (inode_size == 0) {
2620                         inode_size = get_int_from_profile(fs_types,
2621                                                           "inode_size", 0);
2622                         if (inode_size <= EXT2_GOOD_OLD_INODE_SIZE*2)
2623                                 inode_size = EXT2_GOOD_OLD_INODE_SIZE*2;
2624                 }
2625         }
2626
2627         /* Don't allow user to set both metadata_csum and uninit_bg bits. */
2628         if (ext2fs_has_feature_metadata_csum(&fs_param) &&
2629             ext2fs_has_feature_gdt_csum(&fs_param))
2630                 ext2fs_clear_feature_gdt_csum(&fs_param);
2631
2632         /* Can't support bigalloc feature without extents feature */
2633         if (ext2fs_has_feature_bigalloc(&fs_param) &&
2634             !ext2fs_has_feature_extents(&fs_param)) {
2635                 com_err(program_name, 0, "%s",
2636                         _("Can't support bigalloc feature without "
2637                           "extents feature"));
2638                 exit(1);
2639         }
2640
2641         if (ext2fs_has_feature_meta_bg(&fs_param) &&
2642             ext2fs_has_feature_resize_inode(&fs_param)) {
2643                 fprintf(stderr, "%s", _("The resize_inode and meta_bg "
2644                                         "features are not compatible.\n"
2645                                         "They can not be both enabled "
2646                                         "simultaneously.\n"));
2647                 exit(1);
2648         }
2649
2650         if (!quiet && ext2fs_has_feature_bigalloc(&fs_param) &&
2651             EXT2_CLUSTER_SIZE(&fs_param) > 16 * EXT2_BLOCK_SIZE(&fs_param))
2652                 fprintf(stderr, "%s", _("\nWarning: bigalloc file systems "
2653                                 "with a cluster size greater than\n"
2654                                 "16 times the block size is considered "
2655                                 "experimental\n"));
2656
2657         /*
2658          * Since sparse_super is the default, we would only have a problem
2659          * here if it was explicitly disabled.
2660          */
2661         if (ext2fs_has_feature_resize_inode(&fs_param) &&
2662             !ext2fs_has_feature_sparse_super(&fs_param)) {
2663                 com_err(program_name, 0, "%s",
2664                         _("reserved online resize blocks not supported "
2665                           "on non-sparse filesystem"));
2666                 exit(1);
2667         }
2668
2669         if (fs_param.s_blocks_per_group) {
2670                 if (fs_param.s_blocks_per_group < 256 ||
2671                     fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) {
2672                         com_err(program_name, 0, "%s",
2673                                 _("blocks per group count out of range"));
2674                         exit(1);
2675                 }
2676         }
2677
2678         /*
2679          * If the bigalloc feature is enabled, then the -g option will
2680          * specify the number of clusters per group.
2681          */
2682         if (ext2fs_has_feature_bigalloc(&fs_param)) {
2683                 fs_param.s_clusters_per_group = fs_param.s_blocks_per_group;
2684                 fs_param.s_blocks_per_group = 0;
2685         }
2686
2687         if (inode_size == 0)
2688                 inode_size = get_int_from_profile(fs_types, "inode_size", 0);
2689         if (!flex_bg_size && ext2fs_has_feature_flex_bg(&fs_param))
2690                 flex_bg_size = get_uint_from_profile(fs_types,
2691                                                      "flex_bg_size", 16);
2692         if (flex_bg_size) {
2693                 if (!ext2fs_has_feature_flex_bg(&fs_param)) {
2694                         com_err(program_name, 0, "%s",
2695                                 _("Flex_bg feature not enabled, so "
2696                                   "flex_bg size may not be specified"));
2697                         exit(1);
2698                 }
2699                 fs_param.s_log_groups_per_flex = int_log2(flex_bg_size);
2700         }
2701
2702         if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) {
2703                 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
2704                     inode_size > EXT2_BLOCK_SIZE(&fs_param) ||
2705                     inode_size & (inode_size - 1)) {
2706                         com_err(program_name, 0,
2707                                 _("invalid inode size %d (min %d/max %d)"),
2708                                 inode_size, EXT2_GOOD_OLD_INODE_SIZE,
2709                                 blocksize);
2710                         exit(1);
2711                 }
2712                 fs_param.s_inode_size = inode_size;
2713         }
2714
2715         /*
2716          * If inode size is 128 and inline data is enabled, we need
2717          * to notify users that inline data will never be useful.
2718          */
2719         if (ext2fs_has_feature_inline_data(&fs_param) &&
2720             fs_param.s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2721                 com_err(program_name, 0,
2722                         _("%d byte inodes are too small for inline data; "
2723                           "specify larger size"),
2724                         fs_param.s_inode_size);
2725                 exit(1);
2726         }
2727
2728         /*
2729          * Warn the user that filesystems with 128-byte inodes will
2730          * not work properly beyond 2038.  This can be suppressed via
2731          * a boolean in the mke2fs.conf file, and we will disable this
2732          * warning for file systems created for the GNU Hurd.
2733          */
2734         if (inode_size == EXT2_GOOD_OLD_INODE_SIZE &&
2735             get_bool_from_profile(fs_types, "warn_y2038_dates", 1))
2736                 printf(
2737 _("128-byte inodes cannot handle dates beyond 2038 and are deprecated\n"));
2738
2739         /* Make sure number of inodes specified will fit in 32 bits */
2740         if (num_inodes == 0) {
2741                 unsigned long long n;
2742                 n = ext2fs_blocks_count(&fs_param) * blocksize / inode_ratio;
2743                 if (n > MAX_32_NUM) {
2744                         num_inodes = MAX_32_NUM;
2745                         if (!ext2fs_has_feature_64bit(&fs_param))
2746                                 com_err(program_name, 0,
2747                                         _("too many inodes (%llu), reduced to "
2748                                           "%llu"), n, MAX_32_NUM);
2749                 }
2750         } else if (num_inodes > MAX_32_NUM) {
2751                 com_err(program_name, 0,
2752                         _("too many inodes (%llu), specify < 2^32 inodes"),
2753                         (unsigned long long) num_inodes);
2754                 exit(1);
2755         }
2756         /*
2757          * Calculate number of inodes based on the inode ratio
2758          */
2759         fs_param.s_inodes_count = num_inodes ? num_inodes :
2760                 (ext2fs_blocks_count(&fs_param) * blocksize) / inode_ratio;
2761
2762         if ((((unsigned long long)fs_param.s_inodes_count) *
2763              (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >=
2764             ((ext2fs_blocks_count(&fs_param)) *
2765              EXT2_BLOCK_SIZE(&fs_param))) {
2766                 com_err(program_name, 0, _("inode_size (%u) * inodes_count "
2767                                           "(%u) too big for a\n\t"
2768                                           "filesystem with %llu blocks, "
2769                                           "specify higher inode_ratio (-i)\n\t"
2770                                           "or lower inode count (-N).\n"),
2771                         inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE,
2772                         fs_param.s_inodes_count,
2773                         (unsigned long long) ext2fs_blocks_count(&fs_param));
2774                 exit(1);
2775         }
2776
2777         /*
2778          * Calculate number of blocks to reserve
2779          */
2780         ext2fs_r_blocks_count_set(&fs_param, reserved_ratio *
2781                                   ext2fs_blocks_count(&fs_param) / 100.0);
2782
2783         if (ext2fs_has_feature_sparse_super2(&fs_param)) {
2784                 if (num_backups >= 1)
2785                         fs_param.s_backup_bgs[0] = 1;
2786                 if (num_backups >= 2)
2787                         fs_param.s_backup_bgs[1] = ~0;
2788         }
2789
2790         free(fs_type);
2791         free(usage_types);
2792
2793         /* The isatty() test is so we don't break existing scripts */
2794         flags = CREATE_FILE;
2795         if (isatty(0) && isatty(1) && !offset)
2796                 flags |= CHECK_FS_EXIST;
2797         if (!quiet)
2798                 flags |= VERBOSE_CREATE;
2799         if (!explicit_fssize)
2800                 flags |= NO_SIZE;
2801         if (!check_plausibility(device_name, flags, &is_device) && !force)
2802                 proceed_question(proceed_delay);
2803 }
2804
2805 static int should_do_undo(const char *name)
2806 {
2807         errcode_t retval;
2808         io_channel channel;
2809         __u16   s_magic;
2810         struct ext2_super_block super;
2811         io_manager manager = default_io_manager;
2812         int csum_flag, force_undo;
2813
2814         csum_flag = ext2fs_has_feature_metadata_csum(&fs_param) ||
2815                     ext2fs_has_feature_gdt_csum(&fs_param);
2816         force_undo = get_int_from_profile(fs_types, "force_undo", 0);
2817         if (!force_undo && (!csum_flag || !lazy_itable_init))
2818                 return 0;
2819
2820         retval = manager->open(name, IO_FLAG_EXCLUSIVE,  &channel);
2821         if (retval) {
2822                 /*
2823                  * We don't handle error cases instead we
2824                  * declare that the file system doesn't exist
2825                  * and let the rest of mke2fs take care of
2826                  * error
2827                  */
2828                 retval = 0;
2829                 goto open_err_out;
2830         }
2831
2832         io_channel_set_blksize(channel, SUPERBLOCK_OFFSET);
2833         retval = io_channel_read_blk64(channel, 1, -SUPERBLOCK_SIZE, &super);
2834         if (retval) {
2835                 retval = 0;
2836                 goto err_out;
2837         }
2838
2839 #if defined(WORDS_BIGENDIAN)
2840         s_magic = ext2fs_swab16(super.s_magic);
2841 #else
2842         s_magic = super.s_magic;
2843 #endif
2844
2845         if (s_magic == EXT2_SUPER_MAGIC)
2846                 retval = 1;
2847
2848 err_out:
2849         io_channel_close(channel);
2850
2851 open_err_out:
2852
2853         return retval;
2854 }
2855
2856 static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr)
2857 {
2858         errcode_t retval = ENOMEM;
2859         char *tdb_dir = NULL, *tdb_file = NULL;
2860         char *dev_name, *tmp_name;
2861         int free_tdb_dir = 0;
2862
2863         /* (re)open a specific undo file */
2864         if (undo_file && undo_file[0] != 0) {
2865                 retval = set_undo_io_backing_manager(*io_ptr);
2866                 if (retval)
2867                         goto err;
2868                 *io_ptr = undo_io_manager;
2869                 retval = set_undo_io_backup_file(undo_file);
2870                 if (retval)
2871                         goto err;
2872                 printf(_("Overwriting existing filesystem; this can be undone "
2873                          "using the command:\n"
2874                          "    e2undo %s %s\n\n"), undo_file, name);
2875                 return retval;
2876         }
2877
2878         /*
2879          * Configuration via a conf file would be
2880          * nice
2881          */
2882         tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
2883         if (!tdb_dir) {
2884                 profile_get_string(profile, "defaults",
2885                                    "undo_dir", 0, "/var/lib/e2fsprogs",
2886                                    &tdb_dir);
2887                 free_tdb_dir = 1;
2888         }
2889
2890         if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
2891             access(tdb_dir, W_OK)) {
2892                 if (free_tdb_dir)
2893                         free(tdb_dir);
2894                 return 0;
2895         }
2896
2897         tmp_name = strdup(name);
2898         if (!tmp_name)
2899                 goto errout;
2900         dev_name = basename(tmp_name);
2901         tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
2902         if (!tdb_file) {
2903                 free(tmp_name);
2904                 goto errout;
2905         }
2906         sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, dev_name);
2907         free(tmp_name);
2908
2909         if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
2910                 retval = errno;
2911                 com_err(program_name, retval,
2912                         _("while trying to delete %s"), tdb_file);
2913                 goto errout;
2914         }
2915
2916         retval = set_undo_io_backing_manager(*io_ptr);
2917         if (retval)
2918                 goto errout;
2919         *io_ptr = undo_io_manager;
2920         retval = set_undo_io_backup_file(tdb_file);
2921         if (retval)
2922                 goto errout;
2923         printf(_("Overwriting existing filesystem; this can be undone "
2924                  "using the command:\n"
2925                  "    e2undo %s %s\n\n"), tdb_file, name);
2926
2927         if (free_tdb_dir)
2928                 free(tdb_dir);
2929         free(tdb_file);
2930         return 0;
2931
2932 errout:
2933         if (free_tdb_dir)
2934                 free(tdb_dir);
2935         free(tdb_file);
2936 err:
2937         com_err(program_name, retval, "%s",
2938                 _("while trying to setup undo file\n"));
2939         return retval;
2940 }
2941
2942 static int mke2fs_discard_device(ext2_filsys fs)
2943 {
2944         struct ext2fs_numeric_progress_struct progress;
2945         dgrp_t group;
2946         int retval = 0;
2947
2948         /*
2949          * Let's try if discard really works on the device, so
2950          * we do not print numeric progress resulting in failure
2951          * afterwards.
2952          */
2953         retval = io_channel_discard(fs->io, 0, 1);
2954         if (retval)
2955                 return retval;
2956
2957         ext2fs_numeric_progress_init(fs, &progress,
2958                                      _("Discarding device blocks: "),
2959                                      ext2fs_blocks_count(fs->super));
2960
2961         for (group = 0; group < fs->group_desc_count; group++) {
2962                 blk64_t start = ext2fs_group_first_block2(fs, group);
2963                 blk64_t count = ext2fs_group_blocks_count(fs, group);
2964                 int retval_discard = 0;
2965
2966                 retval_discard = io_channel_discard(fs->io, start, count);
2967                 if (!retval_discard) {
2968                         ext2fs_bg_flags_set(fs, group, EXT2_BG_TRIMMED);
2969                         ext2fs_group_desc_csum_set(fs, group);
2970                         fs->super->s_flags |= EXT2_FLAGS_TRACK_TRIM;
2971                 } else if (!retval) {
2972                         retval = retval_discard;
2973                 }
2974
2975                 ext2fs_numeric_progress_update(fs, &progress,
2976                                         ext2fs_group_last_block2(fs, group));
2977         }
2978
2979         if (retval) {
2980                 ext2fs_numeric_progress_close(fs, &progress,
2981                                       _("failed - "));
2982                 if (!quiet)
2983                         printf("%s\n",error_message(retval));
2984         } else
2985                 ext2fs_numeric_progress_close(fs, &progress,
2986                                       _("done                            \n"));
2987
2988         return retval;
2989 }
2990
2991 static void fix_cluster_bg_counts(ext2_filsys fs)
2992 {
2993         blk64_t         block, num_blocks, last_block, next;
2994         blk64_t         tot_free = 0;
2995         errcode_t       retval;
2996         dgrp_t          group = 0;
2997         int             grp_free = 0;
2998
2999         num_blocks = ext2fs_blocks_count(fs->super);
3000         last_block = ext2fs_group_last_block2(fs, group);
3001         block = fs->super->s_first_data_block;
3002         while (block < num_blocks) {
3003                 retval = ext2fs_find_first_zero_block_bitmap2(fs->block_map,
3004                                                 block, last_block, &next);
3005                 if (retval == 0)
3006                         block = next;
3007                 else {
3008                         block = last_block + 1;
3009                         goto next_bg;
3010                 }
3011
3012                 retval = ext2fs_find_first_set_block_bitmap2(fs->block_map,
3013                                                 block, last_block, &next);
3014                 if (retval)
3015                         next = last_block + 1;
3016                 grp_free += EXT2FS_NUM_B2C(fs, next - block);
3017                 tot_free += next - block;
3018                 block = next;
3019
3020                 if (block > last_block) {
3021                 next_bg:
3022                         ext2fs_bg_free_blocks_count_set(fs, group, grp_free);
3023                         ext2fs_group_desc_csum_set(fs, group);
3024                         grp_free = 0;
3025                         group++;
3026                         last_block = ext2fs_group_last_block2(fs, group);
3027                 }
3028         }
3029         ext2fs_free_blocks_count_set(fs->super, tot_free);
3030 }
3031
3032 static int create_quota_inodes(ext2_filsys fs)
3033 {
3034         quota_ctx_t qctx;
3035         errcode_t retval;
3036
3037         retval = quota_init_context(&qctx, fs, quotatype_bits);
3038         if (retval) {
3039                 com_err(program_name, retval,
3040                         _("while initializing quota context"));
3041                 exit(1);
3042         }
3043         quota_compute_usage(qctx);
3044         retval = quota_write_inode(qctx, quotatype_bits);
3045         if (retval) {
3046                 com_err(program_name, retval,
3047                         _("while writing quota inodes"));
3048                 exit(1);
3049         }
3050         quota_release_context(&qctx);
3051
3052         return 0;
3053 }
3054
3055 static errcode_t set_error_behavior(ext2_filsys fs)
3056 {
3057         char    *arg = NULL;
3058         short   errors = fs->super->s_errors;
3059
3060         arg = get_string_from_profile(fs_types, "errors", NULL);
3061         if (arg == NULL)
3062                 goto try_user;
3063
3064         if (strcmp(arg, "continue") == 0)
3065                 errors = EXT2_ERRORS_CONTINUE;
3066         else if (strcmp(arg, "remount-ro") == 0)
3067                 errors = EXT2_ERRORS_RO;
3068         else if (strcmp(arg, "panic") == 0)
3069                 errors = EXT2_ERRORS_PANIC;
3070         else {
3071                 com_err(program_name, 0,
3072                         _("bad error behavior in profile - %s"),
3073                         arg);
3074                 free(arg);
3075                 return EXT2_ET_INVALID_ARGUMENT;
3076         }
3077         free(arg);
3078
3079 try_user:
3080         if (errors_behavior)
3081                 errors = errors_behavior;
3082
3083         fs->super->s_errors = errors;
3084         return 0;
3085 }
3086
3087 static void ext2fs_set_iops_group(ext2_filsys fs, blk64_t *array, int count)
3088 {
3089         int i;
3090         dgrp_t j, start, end;
3091
3092         if (!array || !count)
3093                 return;
3094
3095         for (i = 0; i < count; i += 2) {
3096                 start = ext2fs_div64_ceil(ext2fs_div64_ceil(array[i],
3097                                                             fs->blocksize),
3098                                           EXT2_BLOCKS_PER_GROUP(fs->super));
3099                 end = ext2fs_div64_ceil(ext2fs_div64_ceil(array[i + 1],
3100                                                           fs->blocksize),
3101                                         EXT2_BLOCKS_PER_GROUP(fs->super));
3102
3103                 for (j = start; j < end; j++) {
3104                         ext2fs_bg_flags_set(fs, j, EXT2_BG_IOPS);
3105                         ext2fs_group_desc_csum_set(fs, j);
3106                 }
3107         }
3108 }
3109
3110 int main (int argc, char *argv[])
3111 {
3112         errcode_t       retval = 0;
3113         ext2_filsys     fs;
3114         badblocks_list  bb_list = 0;
3115         badblocks_iterate       bb_iter;
3116         blk_t           blk;
3117         struct ext2fs_journal_params    jparams = {0};
3118         unsigned int    i, checkinterval;
3119         int             max_mnt_count;
3120         int             val, hash_alg;
3121         int             flags;
3122         int             old_bitmaps;
3123         io_manager      io_ptr;
3124         char            opt_string[40];
3125         char            *hash_alg_str;
3126         int             itable_zeroed = 0;
3127         blk64_t         overhead;
3128
3129 #ifdef ENABLE_NLS
3130         setlocale(LC_MESSAGES, "");
3131         setlocale(LC_CTYPE, "");
3132         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
3133         textdomain(NLS_CAT_NAME);
3134         set_com_err_gettext(gettext);
3135 #endif
3136         PRS(argc, argv);
3137
3138 #ifdef CONFIG_TESTIO_DEBUG
3139         if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
3140                 io_ptr = test_io_manager;
3141                 test_io_backing_manager = default_io_manager;
3142         } else
3143 #endif
3144                 io_ptr = default_io_manager;
3145
3146         if (undo_file != NULL || should_do_undo(device_name)) {
3147                 retval = mke2fs_setup_tdb(device_name, &io_ptr);
3148                 if (retval)
3149                         exit(1);
3150         }
3151
3152         /*
3153          * Initialize the superblock....
3154          */
3155         flags = EXT2_FLAG_EXCLUSIVE;
3156         if (direct_io)
3157                 flags |= EXT2_FLAG_DIRECT_IO;
3158         profile_get_boolean(profile, "options", "old_bitmaps", 0, 0,
3159                             &old_bitmaps);
3160         if (!old_bitmaps)
3161                 flags |= EXT2_FLAG_64BITS;
3162         /*
3163          * By default, we print how many inode tables or block groups
3164          * or whatever we've written so far.  The quiet flag disables
3165          * this, along with a lot of other output.
3166          */
3167         if (!quiet)
3168                 flags |= EXT2_FLAG_PRINT_PROGRESS;
3169         if (android_sparse_file) {
3170                 char *android_sparse_params = malloc(strlen(device_name) + 48);
3171
3172                 if (!android_sparse_params) {
3173                         com_err(program_name, ENOMEM, "%s",
3174                                 _("in malloc for android_sparse_params"));
3175                         exit(1);
3176                 }
3177                 sprintf(android_sparse_params, "(%s):%u:%u",
3178                          device_name, fs_param.s_blocks_count,
3179                          1024 << fs_param.s_log_block_size);
3180                 retval = ext2fs_initialize(android_sparse_params, flags,
3181                                            &fs_param, sparse_io_manager, &fs);
3182                 free(android_sparse_params);
3183         } else
3184                 retval = ext2fs_initialize(device_name, flags, &fs_param,
3185                                            io_ptr, &fs);
3186         if (retval) {
3187                 com_err(device_name, retval, "%s",
3188                         _("while setting up superblock"));
3189                 exit(1);
3190         }
3191
3192         if (iops_range && iops_count) {
3193                 ext2fs_set_iops_group(fs, iops_range, iops_count);
3194                 fs->super->s_flags |= EXT2_FLAGS_HAS_IOPS;
3195                 ext2fs_mark_super_dirty(fs);
3196
3197                 if (iops_range != iops_array)
3198                         free(iops_range);
3199         }
3200
3201         fs->progress_ops = &ext2fs_numeric_progress_ops;
3202
3203         /* Set the error behavior */
3204         retval = set_error_behavior(fs);
3205         if (retval)
3206                 usage();
3207
3208         /* Check the user's mkfs options for metadata checksumming */
3209         if (!quiet &&
3210             !ext2fs_has_feature_journal_dev(fs->super) &&
3211             ext2fs_has_feature_metadata_csum(fs->super)) {
3212                 if (!ext2fs_has_feature_extents(fs->super))
3213                         printf("%s",
3214                                _("Extents are not enabled.  The file extent "
3215                                  "tree can be checksummed, whereas block maps "
3216                                  "cannot.  Not enabling extents reduces the "
3217                                  "coverage of metadata checksumming.  "
3218                                  "Pass -O extents to rectify.\n"));
3219                 if (!ext2fs_has_feature_64bit(fs->super))
3220                         printf("%s",
3221                                _("64-bit filesystem support is not enabled.  "
3222                                  "The larger fields afforded by this feature "
3223                                  "enable full-strength checksumming.  "
3224                                  "Pass -O 64bit to rectify.\n"));
3225         }
3226
3227         if (ext2fs_has_feature_csum_seed(fs->super) &&
3228             !ext2fs_has_feature_metadata_csum(fs->super)) {
3229                 printf("%s", _("The metadata_csum_seed feature "
3230                                "requires the metadata_csum feature.\n"));
3231                 exit(1);
3232         }
3233
3234         if (ext2fs_has_feature_dirdata(fs->super)) {
3235                 if (ext2fs_has_feature_inline_data(fs->super)) {
3236                         printf("%s", _("The dirdata feature can not enabled "
3237                                        "with inline data feature.\n"));
3238                         exit(1);
3239                 }
3240                 if (ext2fs_has_feature_casefold(fs->super)) {
3241                         printf("%s", _("The dirdata feature can not enabled "
3242                                        "with casefold feature.\n"));
3243                         exit(1);
3244                 }
3245         }
3246
3247         /* Calculate journal blocks */
3248         if (!journal_device && ((journal_size) ||
3249             ext2fs_has_feature_journal(&fs_param)))
3250                 figure_journal_size(&jparams, journal_size, journal_fc_size, fs);
3251
3252         sprintf(opt_string, "tdb_data_size=%d", fs->blocksize <= 4096 ?
3253                 32768 : fs->blocksize * 8);
3254         io_channel_set_options(fs->io, opt_string);
3255         if (offset) {
3256                 sprintf(opt_string, "offset=%llu", (unsigned long long) offset);
3257                 io_channel_set_options(fs->io, opt_string);
3258         }
3259
3260         if (assume_storage_prezeroed) {
3261                 if (verbose)
3262                         printf("%s",
3263                                _("Assuming the storage device is prezeroed "
3264                                "- skipping inode table and journal wipe\n"));
3265
3266                 lazy_itable_init = 1;
3267                 itable_zeroed = 1;
3268                 zero_hugefile = 0;
3269                 journal_flags |= EXT2_MKJOURNAL_LAZYINIT;
3270         }
3271
3272         /* Can't undo discard ... */
3273         if (!noaction && discard && dev_size && (io_ptr != undo_io_manager)) {
3274                 retval = mke2fs_discard_device(fs);
3275                 if (!retval && io_channel_discard_zeroes_data(fs->io)) {
3276                         if (verbose)
3277                                 printf("%s",
3278                                        _("Discard succeeded and will return "
3279                                          "0s - skipping inode table wipe\n"));
3280                         lazy_itable_init = 1;
3281                         itable_zeroed = 1;
3282                         zero_hugefile = 0;
3283                 }
3284         }
3285
3286         if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS)
3287                 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
3288
3289         if (ext2fs_has_feature_flex_bg(&fs_param) ||
3290             ext2fs_has_feature_huge_file(&fs_param) ||
3291             ext2fs_has_feature_gdt_csum(&fs_param) ||
3292             ext2fs_has_feature_dir_nlink(&fs_param) ||
3293             ext2fs_has_feature_metadata_csum(&fs_param) ||
3294             ext2fs_has_feature_extra_isize(&fs_param))
3295                 fs->super->s_kbytes_written = 1;
3296
3297         /*
3298          * Wipe out the old on-disk superblock
3299          */
3300         if (!noaction)
3301                 zap_sector(fs, 2, 6);
3302
3303         /*
3304          * Parse or generate a UUID for the filesystem
3305          */
3306         if (fs_uuid) {
3307                 if ((strcasecmp(fs_uuid, "null") == 0) ||
3308                     (strcasecmp(fs_uuid, "clear") == 0)) {
3309                         uuid_clear(fs->super->s_uuid);
3310                 } else if (strcasecmp(fs_uuid, "time") == 0) {
3311                         uuid_generate_time(fs->super->s_uuid);
3312                 } else if (strcasecmp(fs_uuid, "random") == 0) {
3313                         uuid_generate(fs->super->s_uuid);
3314                 } else if (uuid_parse(fs_uuid, fs->super->s_uuid) != 0) {
3315                         com_err(device_name, 0, "could not parse UUID: %s\n",
3316                                 fs_uuid);
3317                         exit(1);
3318                 }
3319         } else
3320                 uuid_generate(fs->super->s_uuid);
3321
3322         if (ext2fs_has_feature_csum_seed(fs->super))
3323                 fs->super->s_checksum_seed = ext2fs_crc32c_le(~0,
3324                                 fs->super->s_uuid, sizeof(fs->super->s_uuid));
3325
3326         ext2fs_init_csum_seed(fs);
3327
3328         /*
3329          * Initialize the directory index variables
3330          */
3331         hash_alg_str = get_string_from_profile(fs_types, "hash_alg",
3332                                                "half_md4");
3333         hash_alg = e2p_string2hash(hash_alg_str);
3334         free(hash_alg_str);
3335         fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg :
3336                 EXT2_HASH_HALF_MD4;
3337
3338         if (memcmp(fs_param.s_hash_seed, zero_buf,
3339                 sizeof(fs_param.s_hash_seed)) != 0) {
3340                 memcpy(fs->super->s_hash_seed, fs_param.s_hash_seed,
3341                         sizeof(fs->super->s_hash_seed));
3342         } else
3343                 uuid_generate((unsigned char *) fs->super->s_hash_seed);
3344
3345         /*
3346          * Periodic checks can be enabled/disabled via config file.
3347          * Note we override the kernel include file's idea of what the default
3348          * check interval (never) should be.  It's a good idea to check at
3349          * least *occasionally*, specially since servers will never rarely get
3350          * to reboot, since Linux is so robust these days.  :-)
3351          *
3352          * 180 days (six months) seems like a good value.
3353          */
3354 #ifdef EXT2_DFL_CHECKINTERVAL
3355 #undef EXT2_DFL_CHECKINTERVAL
3356 #endif
3357 #define EXT2_DFL_CHECKINTERVAL (86400L * 180L)
3358
3359         if (get_bool_from_profile(fs_types, "enable_periodic_fsck", 0)) {
3360                 fs->super->s_checkinterval = EXT2_DFL_CHECKINTERVAL;
3361                 fs->super->s_max_mnt_count = EXT2_DFL_MAX_MNT_COUNT;
3362                 /*
3363                  * Add "jitter" to the superblock's check interval so that we
3364                  * don't check all the filesystems at the same time.  We use a
3365                  * kludgy hack of using the UUID to derive a random jitter value
3366                  */
3367                 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++)
3368                         val += fs->super->s_uuid[i];
3369                 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
3370         } else
3371                 fs->super->s_max_mnt_count = -1;
3372
3373         /*
3374          * Override the creator OS, if applicable
3375          */
3376         if (creator_os && !set_os(fs->super, creator_os)) {
3377                 com_err (program_name, 0, _("unknown os - %s"), creator_os);
3378                 exit(1);
3379         }
3380
3381         /*
3382          * For the Hurd, we will turn off filetype since it doesn't
3383          * support it.
3384          */
3385         if (fs->super->s_creator_os == EXT2_OS_HURD)
3386                 ext2fs_clear_feature_filetype(fs->super);
3387
3388         /*
3389          * Set the volume label...
3390          */
3391         if (volume_label) {
3392                 memset(fs->super->s_volume_name, 0,
3393                        sizeof(fs->super->s_volume_name));
3394                 strncpy((char *) fs->super->s_volume_name, volume_label,
3395                         sizeof(fs->super->s_volume_name));
3396         }
3397
3398         /*
3399          * Set the last mount directory
3400          */
3401         if (mount_dir) {
3402                 memset(fs->super->s_last_mounted, 0,
3403                        sizeof(fs->super->s_last_mounted));
3404                 strncpy((char *) fs->super->s_last_mounted, mount_dir,
3405                         sizeof(fs->super->s_last_mounted));
3406         }
3407
3408         /* Set current default encryption algorithms for data and
3409          * filename encryption */
3410         if (ext2fs_has_feature_encrypt(fs->super)) {
3411                 fs->super->s_encrypt_algos[0] =
3412                         EXT4_ENCRYPTION_MODE_AES_256_XTS;
3413                 fs->super->s_encrypt_algos[1] =
3414                         EXT4_ENCRYPTION_MODE_AES_256_CTS;
3415         }
3416
3417         if (ext2fs_has_feature_metadata_csum(fs->super))
3418                 fs->super->s_checksum_type = EXT2_CRC32C_CHKSUM;
3419
3420         if (!quiet || noaction)
3421                 show_stats(fs);
3422
3423         if (noaction)
3424                 exit(0);
3425
3426         if (ext2fs_has_feature_journal_dev(fs->super)) {
3427                 create_journal_dev(fs);
3428                 printf("\n");
3429                 exit(ext2fs_close_free(&fs) ? 1 : 0);
3430         }
3431
3432         if (bad_blocks_filename)
3433                 read_bb_file(fs, &bb_list, bad_blocks_filename);
3434         if (cflag)
3435                 test_disk(fs, &bb_list);
3436         handle_bad_blocks(fs, bb_list);
3437
3438         fs->stride = fs_stride = fs->super->s_raid_stride;
3439         if (!quiet)
3440                 printf("%s", _("Allocating group tables: "));
3441         if (ext2fs_has_feature_flex_bg(fs->super) &&
3442             packed_meta_blocks)
3443                 retval = packed_allocate_tables(fs);
3444         else
3445                 retval = ext2fs_allocate_tables(fs);
3446         if (retval) {
3447                 com_err(program_name, retval, "%s",
3448                         _("while trying to allocate filesystem tables"));
3449                 exit(1);
3450         }
3451         if (!quiet)
3452                 printf("%s", _("done                            \n"));
3453
3454         /*
3455          * Unmark bad blocks to calculate overhead, because metadata
3456          * blocks and bad blocks can land on the same allocation cluster.
3457          */
3458         if (bb_list) {
3459                 retval = ext2fs_badblocks_list_iterate_begin(bb_list,
3460                                                              &bb_iter);
3461                 if (retval) {
3462                         com_err("ext2fs_badblocks_list_iterate_begin", retval,
3463                                 "%s", _("while unmarking bad blocks"));
3464                         exit(1);
3465                 }
3466                 while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
3467                         ext2fs_unmark_block_bitmap2(fs->block_map, blk);
3468                 ext2fs_badblocks_list_iterate_end(bb_iter);
3469         }
3470
3471         retval = ext2fs_convert_subcluster_bitmap(fs, &fs->block_map);
3472         if (retval) {
3473                 com_err(program_name, retval, "%s",
3474                         _("\n\twhile converting subcluster bitmap"));
3475                 exit(1);
3476         }
3477
3478         retval = ext2fs_count_used_clusters(fs, fs->super->s_first_data_block,
3479                                         ext2fs_blocks_count(fs->super) - 1,
3480                                         &overhead);
3481         if (retval) {
3482                 com_err(program_name, retval, "%s",
3483                         _("while calculating overhead"));
3484                 exit(1);
3485         }
3486
3487         if (bb_list) {
3488                 retval = ext2fs_badblocks_list_iterate_begin(bb_list,
3489                                                              &bb_iter);
3490                 if (retval) {
3491                         com_err("ext2fs_badblocks_list_iterate_begin", retval,
3492                                 "%s", _("while marking bad blocks as used"));
3493                         exit(1);
3494                 }
3495                 while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
3496                         ext2fs_mark_block_bitmap2(fs->block_map, blk);
3497                 ext2fs_badblocks_list_iterate_end(bb_iter);
3498         }
3499
3500         if (super_only) {
3501                 check_plausibility(device_name, CHECK_FS_EXIST, NULL);
3502                 printf(_("%s may be further corrupted by superblock rewrite\n"),
3503                        device_name);
3504                 if (!force)
3505                         proceed_question(proceed_delay);
3506                 fs->super->s_state |= EXT2_ERROR_FS;
3507                 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
3508                 /*
3509                  * The command "mke2fs -S" is used to recover
3510                  * corrupted file systems, so do not mark any of the
3511                  * inodes as unused; we want e2fsck to consider all
3512                  * inodes as potentially containing recoverable data.
3513                  */
3514                 if (ext2fs_has_group_desc_csum(fs)) {
3515                         for (i = 0; i < fs->group_desc_count; i++)
3516                                 ext2fs_bg_itable_unused_set(fs, i, 0);
3517                 }
3518         } else {
3519                 /* rsv must be a power of two (64kB is MD RAID sb alignment) */
3520                 blk64_t rsv = 65536 / fs->blocksize;
3521                 blk64_t blocks = ext2fs_blocks_count(fs->super);
3522                 blk64_t start;
3523                 blk64_t ret_blk;
3524
3525 #ifdef ZAP_BOOTBLOCK
3526                 zap_sector(fs, 0, 2);
3527 #endif
3528
3529                 /*
3530                  * Wipe out any old MD RAID (or other) metadata at the end
3531                  * of the device.  This will also verify that the device is
3532                  * as large as we think.  Be careful with very small devices.
3533                  */
3534                 start = (blocks & ~(rsv - 1));
3535                 if (start > rsv)
3536                         start -= rsv;
3537                 if (start > 0)
3538                         retval = ext2fs_zero_blocks2(fs, start, blocks - start,
3539                                                     &ret_blk, NULL);
3540
3541                 if (retval) {
3542                         com_err(program_name, retval,
3543                                 _("while zeroing block %llu at end of filesystem"),
3544                                 (unsigned long long) ret_blk);
3545                 }
3546                 write_inode_tables(fs, lazy_itable_init, itable_zeroed);
3547                 create_root_dir(fs);
3548                 create_lost_and_found(fs);
3549                 reserve_inodes(fs);
3550                 create_bad_block_inode(fs, bb_list);
3551                 if (ext2fs_has_feature_resize_inode(fs->super)) {
3552                         retval = ext2fs_create_resize_inode(fs);
3553                         if (retval) {
3554                                 com_err("ext2fs_create_resize_inode", retval,
3555                                         "%s",
3556                                 _("while reserving blocks for online resize"));
3557                                 exit(1);
3558                         }
3559                 }
3560         }
3561
3562         if (journal_device) {
3563                 ext2_filsys     jfs;
3564
3565                 if (!check_plausibility(journal_device, CHECK_BLOCK_DEV,
3566                                         NULL) && !force)
3567                         proceed_question(proceed_delay);
3568                 check_mount(journal_device, force, _("journal"));
3569
3570                 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
3571                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
3572                                      fs->blocksize, default_io_manager, &jfs);
3573                 if (retval) {
3574                         com_err(program_name, retval,
3575                                 _("while trying to open journal device %s\n"),
3576                                 journal_device);
3577                         exit(1);
3578                 }
3579                 if (!quiet) {
3580                         printf(_("Adding journal to device %s: "),
3581                                journal_device);
3582                         fflush(stdout);
3583                 }
3584                 retval = ext2fs_add_journal_device(fs, jfs);
3585                 if(retval) {
3586                         com_err (program_name, retval,
3587                                  _("\n\twhile trying to add journal to device %s"),
3588                                  journal_device);
3589                         exit(1);
3590                 }
3591                 if (!quiet)
3592                         printf("%s", _("done\n"));
3593                 ext2fs_close_free(&jfs);
3594                 free(journal_device);
3595         } else if ((journal_size) ||
3596                    ext2fs_has_feature_journal(&fs_param)) {
3597                 overhead += EXT2FS_NUM_B2C(fs, jparams.num_journal_blocks + jparams.num_fc_blocks);
3598                 if (super_only) {
3599                         printf("%s", _("Skipping journal creation in super-only mode\n"));
3600                         fs->super->s_journal_inum = EXT2_JOURNAL_INO;
3601                         goto no_journal;
3602                 }
3603
3604                 if (!jparams.num_journal_blocks) {
3605                         ext2fs_clear_feature_journal(fs->super);
3606                         ext2fs_clear_feature_orphan_file(fs->super);
3607                         ext2fs_clear_feature_journal(&fs_param);
3608                         ext2fs_clear_feature_orphan_file(&fs_param);
3609                         goto no_journal;
3610                 }
3611                 if (!quiet) {
3612                         printf(_("Creating journal (%u blocks): "),
3613                                jparams.num_journal_blocks + jparams.num_fc_blocks);
3614                         fflush(stdout);
3615                 }
3616                 retval = ext2fs_add_journal_inode3(fs, &jparams,
3617                                                    journal_location,
3618                                                    journal_flags);
3619                 if (retval) {
3620                         com_err(program_name, retval, "%s",
3621                                 _("\n\twhile trying to create journal"));
3622                         exit(1);
3623                 }
3624                 if (!quiet)
3625                         printf("%s", _("done\n"));
3626         }
3627 no_journal:
3628         if (!super_only &&
3629             ext2fs_has_feature_mmp(fs->super)) {
3630                 retval = ext2fs_mmp_init(fs);
3631                 if (retval) {
3632                         fprintf(stderr, "%s",
3633                                 _("\nError while enabling multiple "
3634                                   "mount protection feature."));
3635                         exit(1);
3636                 }
3637                 if (!quiet)
3638                         printf(_("Multiple mount protection is enabled "
3639                                  "with update interval %d seconds.\n"),
3640                                fs->super->s_mmp_update_interval);
3641         }
3642
3643         overhead += fs->super->s_first_data_block;
3644         if (!super_only)
3645                 fs->super->s_overhead_clusters = overhead;
3646
3647         if (ext2fs_has_feature_bigalloc(&fs_param))
3648                 fix_cluster_bg_counts(fs);
3649         if (ext2fs_has_feature_quota(&fs_param))
3650                 create_quota_inodes(fs);
3651         if (ext2fs_has_feature_orphan_file(&fs_param)) {
3652                 if (!ext2fs_has_feature_journal(&fs_param)) {
3653                         com_err(program_name, 0, _("cannot set orphan_file "
3654                                 "feature without a journal."));
3655                         exit(1);
3656                 }
3657                 if (!orphan_file_blocks) {
3658                         orphan_file_blocks =
3659                                 ext2fs_default_orphan_file_blocks(fs);
3660                 }
3661                 retval = ext2fs_create_orphan_file(fs, orphan_file_blocks);
3662                 if (retval) {
3663                         com_err(program_name, retval,
3664                                 _("while creating orphan file"));
3665                         exit(1);
3666                 }
3667         }
3668
3669         retval = mk_hugefiles(fs, device_name);
3670         if (retval)
3671                 com_err(program_name, retval, "while creating huge files");
3672         /* Copy files from the specified directory */
3673         if (src_root_dir) {
3674                 if (!quiet)
3675                         printf("%s", _("Copying files into the device: "));
3676
3677                 retval = populate_fs(fs, EXT2_ROOT_INO, src_root_dir,
3678                                      EXT2_ROOT_INO);
3679                 if (retval) {
3680                         com_err(program_name, retval, "%s",
3681                                 _("while populating file system"));
3682                         exit(1);
3683                 } else if (!quiet)
3684                         printf("%s", _("done\n"));
3685         }
3686
3687         if (!quiet)
3688                 printf("%s", _("Writing superblocks and "
3689                        "filesystem accounting information: "));
3690         checkinterval = fs->super->s_checkinterval;
3691         max_mnt_count = fs->super->s_max_mnt_count;
3692         retval = ext2fs_close_free(&fs);
3693         if (retval) {
3694                 com_err(program_name, retval, "%s",
3695                         _("while writing out and closing file system"));
3696                 retval = 1;
3697         } else if (!quiet) {
3698                 printf("%s", _("done\n\n"));
3699                 if (!getenv("MKE2FS_SKIP_CHECK_MSG"))
3700                         print_check_message(max_mnt_count, checkinterval);
3701         }
3702
3703         remove_error_table(&et_ext2_error_table);
3704         remove_error_table(&et_prof_error_table);
3705         profile_release(profile);
3706         for (i=0; fs_types[i]; i++)
3707                 free(fs_types[i]);
3708         free(fs_types);
3709         return retval;
3710 }