misc/mke2fs.c

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