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 /* for inclusion of PATH_MAX */
  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 #include <linux/version.h>
  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 #include <sys/ioctl.h>
  47 #include <libgen.h>
  48 #include <limits.h>
  49 #include <blkid/blkid.h>
  50
  51 #include "ext2fs/ext2_fs.h"
  52 #include "ext2fs/ext2fsP.h"
  53 #include "uuid/uuid.h"
  54 #include "util.h"
  55 #include "profile.h"
  56 #include "prof_err.h"
  57 #include "../version.h"
  58 #include "quota/quotaio.h"
  59 #include "mke2fs.h"
  60 #include "create_inode.h"
  61
  62 #define STRIDE_LENGTH 8
  63
  64 #define MAX_32_NUM ((((unsigned long long) 1) << 32) - 1)
  65
  66 #ifndef __sparc__
  67 #define ZAP_BOOTBLOCK
  68 #endif
  69
  70 #define DISCARD_STEP_MB         (2048)
  71
  72 extern int isatty(int);
  73 extern FILE *fpopen(const char *cmd, const char *mode);
  74
  75 const char * program_name = "mke2fs";
  76 static const char * device_name /* = NULL */;
  77
  78 /* Command line options */
  79 static int      cflag;
  80 int     verbose;
  81 int     quiet;
  82 static int      super_only;
  83 static int      discard = 1;    /* attempt to discard device before fs creation */
  84 static int      direct_io;
  85 static int      force;
  86 static int      noaction;
  87 static int      num_backups = 2; /* number of backup bg's for sparse_super2 */
  88 static uid_t    root_uid;
  89 static gid_t    root_gid;
  90 int     journal_size;
  91 int     journal_flags;
  92 static int      lazy_itable_init;
  93 static int      packed_meta_blocks;
  94 static char     *bad_blocks_filename = NULL;
  95 static __u32    fs_stride;
  96 static int      quotatype = -1;  /* Initialize both user and group quotas by default */
  97 static __u64    offset;
  98 static blk64_t journal_location = ~0LL;
  99 static int      proceed_delay = -1;
 100 static blk64_t  dev_size;
 101
 102 static struct ext2_super_block fs_param;
 103 static char *fs_uuid = NULL;
 104 static char *creator_os;
 105 static char *volume_label;
 106 static char *mount_dir;
 107 char *journal_device;
 108 static int sync_kludge; /* Set using the MKE2FS_SYNC env. option */
 109 char **fs_types;
 110 const char *root_dir;  /* Copy files from the specified directory */
 111
 112 static profile_t        profile;
 113
 114 static int sys_page_size = 4096;
 115
 116 static void usage(void)
 117 {
 118         fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] "
 119         "[-C cluster-size]\n\t[-i bytes-per-inode] [-I inode-size] "
 120         "[-J journal-options]\n"
 121         "\t[-G flex-group-size] [-N number-of-inodes] "
 122         "[-d root-directory]\n"
 123         "\t[-m reserved-blocks-percentage] [-o creator-os]\n"
 124         "\t[-g blocks-per-group] [-L volume-label] "
 125         "[-M last-mounted-directory]\n\t[-O feature[,...]] "
 126         "[-r fs-revision] [-E extended-option[,...]]\n"
 127         "\t[-t fs-type] [-T usage-type ] [-U UUID] "
 128         "[-jnqvDFKSV] device [blocks-count]\n"),
 129                 program_name);
 130         exit(1);
 131 }
 132
 133 static int int_log2(unsigned long long arg)
 134 {
 135         int     l = 0;
 136
 137         arg >>= 1;
 138         while (arg) {
 139                 l++;
 140                 arg >>= 1;
 141         }
 142         return l;
 143 }
 144
 145 int int_log10(unsigned long long arg)
 146 {
 147         int     l;
 148
 149         for (l=0; arg ; l++)
 150                 arg = arg / 10;
 151         return l;
 152 }
 153
 154 #ifdef __linux__
 155 static int parse_version_number(const char *s)
 156 {
 157         int     major, minor, rev;
 158         char    *endptr;
 159         const char *cp = s;
 160
 161         if (!s)
 162                 return 0;
 163         major = strtol(cp, &endptr, 10);
 164         if (cp == endptr || *endptr != '.')
 165                 return 0;
 166         cp = endptr + 1;
 167         minor = strtol(cp, &endptr, 10);
 168         if (cp == endptr || *endptr != '.')
 169                 return 0;
 170         cp = endptr + 1;
 171         rev = strtol(cp, &endptr, 10);
 172         if (cp == endptr)
 173                 return 0;
 174         return KERNEL_VERSION(major, minor, rev);
 175 }
 176
 177 static int is_before_linux_ver(unsigned int major, unsigned int minor)
 178 {
 179         struct          utsname ut;
 180         static int      linux_version_code = -1;
 181
 182         if (uname(&ut)) {
 183                 perror("uname");
 184                 exit(1);
 185         }
 186         if (linux_version_code < 0)
 187                 linux_version_code = parse_version_number(ut.release);
 188         if (linux_version_code == 0)
 189                 return 0;
 190
 191         return linux_version_code < KERNEL_VERSION(major, minor, 0);
 192 }
 193 #else
 194 static int is_before_linux_ver(unsigned int major, unsigned int minor)
 195 {
 196         return 0;
 197 }
 198 #endif
 199
 200 /*
 201  * Helper function for read_bb_file and test_disk
 202  */
 203 static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk)
 204 {
 205         fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk);
 206         return;
 207 }
 208
 209 /*
 210  * Reads the bad blocks list from a file
 211  */
 212 static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list,
 213                          const char *bad_blocks_file)
 214 {
 215         FILE            *f;
 216         errcode_t       retval;
 217
 218         f = fopen(bad_blocks_file, "r");
 219         if (!f) {
 220                 com_err("read_bad_blocks_file", errno,
 221                         _("while trying to open %s"), bad_blocks_file);
 222                 exit(1);
 223         }
 224         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
 225         fclose (f);
 226         if (retval) {
 227                 com_err("ext2fs_read_bb_FILE", retval, "%s",
 228                         _("while reading in list of bad blocks from file"));
 229                 exit(1);
 230         }
 231 }
 232
 233 /*
 234  * Runs the badblocks program to test the disk
 235  */
 236 static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
 237 {
 238         FILE            *f;
 239         errcode_t       retval;
 240         char            buf[1024];
 241
 242         sprintf(buf, "badblocks -b %d -X %s%s%s %llu", fs->blocksize,
 243                 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "",
 244                 fs->device_name, ext2fs_blocks_count(fs->super)-1);
 245         if (verbose)
 246                 printf(_("Running command: %s\n"), buf);
 247         f = popen(buf, "r");
 248         if (!f) {
 249                 com_err("popen", errno,
 250                         _("while trying to run '%s'"), buf);
 251                 exit(1);
 252         }
 253         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
 254         pclose(f);
 255         if (retval) {
 256                 com_err("ext2fs_read_bb_FILE", retval, "%s",
 257                         _("while processing list of bad blocks from program"));
 258                 exit(1);
 259         }
 260 }
 261
 262 static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
 263 {
 264         dgrp_t                  i;
 265         blk_t                   j;
 266         unsigned                must_be_good;
 267         blk_t                   blk;
 268         badblocks_iterate       bb_iter;
 269         errcode_t               retval;
 270         blk_t                   group_block;
 271         int                     group;
 272         int                     group_bad;
 273
 274         if (!bb_list)
 275                 return;
 276
 277         /*
 278          * The primary superblock and group descriptors *must* be
 279          * good; if not, abort.
 280          */
 281         must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
 282         for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
 283                 if (ext2fs_badblocks_list_test(bb_list, i)) {
 284                         fprintf(stderr, _("Block %d in primary "
 285                                 "superblock/group descriptor area bad.\n"), i);
 286                         fprintf(stderr, _("Blocks %u through %u must be good "
 287                                 "in order to build a filesystem.\n"),
 288                                 fs->super->s_first_data_block, must_be_good);
 289                         fputs(_("Aborting....\n"), stderr);
 290                         exit(1);
 291                 }
 292         }
 293
 294         /*
 295          * See if any of the bad blocks are showing up in the backup
 296          * superblocks and/or group descriptors.  If so, issue a
 297          * warning and adjust the block counts appropriately.
 298          */
 299         group_block = fs->super->s_first_data_block +
 300                 fs->super->s_blocks_per_group;
 301
 302         for (i = 1; i < fs->group_desc_count; i++) {
 303                 group_bad = 0;
 304                 for (j=0; j < fs->desc_blocks+1; j++) {
 305                         if (ext2fs_badblocks_list_test(bb_list,
 306                                                        group_block + j)) {
 307                                 if (!group_bad)
 308                                         fprintf(stderr,
 309 _("Warning: the backup superblock/group descriptors at block %u contain\n"
 310 "       bad blocks.\n\n"),
 311                                                 group_block);
 312                                 group_bad++;
 313                                 group = ext2fs_group_of_blk2(fs, group_block+j);
 314                                 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
 315                                 ext2fs_group_desc_csum_set(fs, group);
 316                                 ext2fs_free_blocks_count_add(fs->super, 1);
 317                         }
 318                 }
 319                 group_block += fs->super->s_blocks_per_group;
 320         }
 321
 322         /*
 323          * Mark all the bad blocks as used...
 324          */
 325         retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
 326         if (retval) {
 327                 com_err("ext2fs_badblocks_list_iterate_begin", retval, "%s",
 328                         _("while marking bad blocks as used"));
 329                 exit(1);
 330         }
 331         while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
 332                 ext2fs_mark_block_bitmap2(fs->block_map, EXT2FS_B2C(fs, blk));
 333         ext2fs_badblocks_list_iterate_end(bb_iter);
 334 }
 335
 336 static void write_reserved_inodes(ext2_filsys fs)
 337 {
 338         errcode_t       retval;
 339         ext2_ino_t      ino;
 340         struct ext2_inode *inode;
 341
 342         retval = ext2fs_get_memzero(EXT2_INODE_SIZE(fs->super), &inode);
 343         if (retval) {
 344                 com_err("inode_init", retval, "while allocating memory");
 345                 exit(1);
 346         }
 347
 348         for (ino = 1; ino < EXT2_FIRST_INO(fs->super); ino++)
 349                 ext2fs_write_inode_full(fs, ino, inode,
 350                                         EXT2_INODE_SIZE(fs->super));
 351
 352         ext2fs_free_mem(&inode);
 353 }
 354
 355 static errcode_t packed_allocate_tables(ext2_filsys fs)
 356 {
 357         errcode_t       retval;
 358         dgrp_t          i;
 359         blk64_t         goal = 0;
 360
 361         for (i = 0; i < fs->group_desc_count; i++) {
 362                 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
 363                 if (retval)
 364                         return retval;
 365                 ext2fs_block_alloc_stats2(fs, goal, +1);
 366                 ext2fs_block_bitmap_loc_set(fs, i, goal);
 367         }
 368         for (i = 0; i < fs->group_desc_count; i++) {
 369                 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
 370                 if (retval)
 371                         return retval;
 372                 ext2fs_block_alloc_stats2(fs, goal, +1);
 373                 ext2fs_inode_bitmap_loc_set(fs, i, goal);
 374         }
 375         for (i = 0; i < fs->group_desc_count; i++) {
 376                 blk64_t end = ext2fs_blocks_count(fs->super) - 1;
 377                 retval = ext2fs_get_free_blocks2(fs, goal, end,
 378                                                  fs->inode_blocks_per_group,
 379                                                  fs->block_map, &goal);
 380                 if (retval)
 381                         return retval;
 382                 ext2fs_block_alloc_stats_range(fs, goal,
 383                                                fs->inode_blocks_per_group, +1);
 384                 ext2fs_inode_table_loc_set(fs, i, goal);
 385                 ext2fs_group_desc_csum_set(fs, i);
 386         }
 387         return 0;
 388 }
 389
 390 static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed)
 391 {
 392         errcode_t       retval;
 393         blk64_t         blk;
 394         dgrp_t          i;
 395         int             num;
 396         struct ext2fs_numeric_progress_struct progress;
 397
 398         ext2fs_numeric_progress_init(fs, &progress,
 399                                      _("Writing inode tables: "),
 400                                      fs->group_desc_count);
 401
 402         for (i = 0; i < fs->group_desc_count; i++) {
 403                 ext2fs_numeric_progress_update(fs, &progress, i);
 404
 405                 blk = ext2fs_inode_table_loc(fs, i);
 406                 num = fs->inode_blocks_per_group;
 407
 408                 if (lazy_flag)
 409                         num = ext2fs_div_ceil((fs->super->s_inodes_per_group -
 410                                                ext2fs_bg_itable_unused(fs, i)) *
 411                                               EXT2_INODE_SIZE(fs->super),
 412                                               EXT2_BLOCK_SIZE(fs->super));
 413                 if (!lazy_flag || itable_zeroed) {
 414                         /* The kernel doesn't need to zero the itable blocks */
 415                         ext2fs_bg_flags_set(fs, i, EXT2_BG_INODE_ZEROED);
 416                         ext2fs_group_desc_csum_set(fs, i);
 417                 }
 418                 retval = ext2fs_zero_blocks2(fs, blk, num, &blk, &num);
 419                 if (retval) {
 420                         fprintf(stderr, _("\nCould not write %d "
 421                                   "blocks in inode table starting at %llu: %s\n"),
 422                                 num, blk, error_message(retval));
 423                         exit(1);
 424                 }
 425                 if (sync_kludge) {
 426                         if (sync_kludge == 1)
 427                                 sync();
 428                         else if ((i % sync_kludge) == 0)
 429                                 sync();
 430                 }
 431         }
 432         ext2fs_zero_blocks2(0, 0, 0, 0, 0);
 433         ext2fs_numeric_progress_close(fs, &progress,
 434                                       _("done                            \n"));
 435
 436         /* Reserved inodes must always have correct checksums */
 437         if (fs->super->s_creator_os == EXT2_OS_LINUX &&
 438             fs->super->s_feature_ro_compat &
 439             EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)
 440                 write_reserved_inodes(fs);
 441 }
 442
 443 static void create_root_dir(ext2_filsys fs)
 444 {
 445         errcode_t               retval;
 446         struct ext2_inode       inode;
 447
 448         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
 449         if (retval) {
 450                 com_err("ext2fs_mkdir", retval, "%s",
 451                         _("while creating root dir"));
 452                 exit(1);
 453         }
 454         if (root_uid != 0 || root_gid != 0) {
 455                 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
 456                 if (retval) {
 457                         com_err("ext2fs_read_inode", retval, "%s",
 458                                 _("while reading root inode"));
 459                         exit(1);
 460                 }
 461
 462                 inode.i_uid = root_uid;
 463                 ext2fs_set_i_uid_high(inode, root_uid >> 16);
 464                 inode.i_gid = root_gid;
 465                 ext2fs_set_i_gid_high(inode, root_gid >> 16);
 466
 467                 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
 468                 if (retval) {
 469                         com_err("ext2fs_write_inode", retval, "%s",
 470                                 _("while setting root inode ownership"));
 471                         exit(1);
 472                 }
 473         }
 474 }
 475
 476 static void create_lost_and_found(ext2_filsys fs)
 477 {
 478         unsigned int            lpf_size = 0;
 479         errcode_t               retval;
 480         ext2_ino_t              ino;
 481         const char              *name = "lost+found";
 482         int                     i;
 483
 484         fs->umask = 077;
 485         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
 486         if (retval) {
 487                 com_err("ext2fs_mkdir", retval, "%s",
 488                         _("while creating /lost+found"));
 489                 exit(1);
 490         }
 491
 492         retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
 493         if (retval) {
 494                 com_err("ext2_lookup", retval, "%s",
 495                         _("while looking up /lost+found"));
 496                 exit(1);
 497         }
 498
 499         for (i=1; i < EXT2_NDIR_BLOCKS; i++) {
 500                 /* Ensure that lost+found is at least 2 blocks, so we always
 501                  * test large empty blocks for big-block filesystems.  */
 502                 if ((lpf_size += fs->blocksize) >= 16*1024 &&
 503                     lpf_size >= 2 * fs->blocksize)
 504                         break;
 505                 retval = ext2fs_expand_dir(fs, ino);
 506                 if (retval) {
 507                         com_err("ext2fs_expand_dir", retval, "%s",
 508                                 _("while expanding /lost+found"));
 509                         exit(1);
 510                 }
 511         }
 512 }
 513
 514 static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
 515 {
 516         errcode_t       retval;
 517
 518         ext2fs_mark_inode_bitmap2(fs->inode_map, EXT2_BAD_INO);
 519         ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0);
 520         retval = ext2fs_update_bb_inode(fs, bb_list);
 521         if (retval) {
 522                 com_err("ext2fs_update_bb_inode", retval, "%s",
 523                         _("while setting bad block inode"));
 524                 exit(1);
 525         }
 526
 527 }
 528
 529 static void reserve_inodes(ext2_filsys fs)
 530 {
 531         ext2_ino_t      i;
 532
 533         for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++)
 534                 ext2fs_inode_alloc_stats2(fs, i, +1, 0);
 535         ext2fs_mark_ib_dirty(fs);
 536 }
 537
 538 #define BSD_DISKMAGIC   (0x82564557UL)  /* The disk magic number */
 539 #define BSD_MAGICDISK   (0x57455682UL)  /* The disk magic number reversed */
 540 #define BSD_LABEL_OFFSET        64
 541
 542 static void zap_sector(ext2_filsys fs, int sect, int nsect)
 543 {
 544         char *buf;
 545         int retval;
 546         unsigned int *magic;
 547
 548         buf = malloc(512*nsect);
 549         if (!buf) {
 550                 printf(_("Out of memory erasing sectors %d-%d\n"),
 551                        sect, sect + nsect - 1);
 552                 exit(1);
 553         }
 554
 555         if (sect == 0) {
 556                 /* Check for a BSD disklabel, and don't erase it if so */
 557                 retval = io_channel_read_blk64(fs->io, 0, -512, buf);
 558                 if (retval)
 559                         fprintf(stderr,
 560                                 _("Warning: could not read block 0: %s\n"),
 561                                 error_message(retval));
 562                 else {
 563                         magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);
 564                         if ((*magic == BSD_DISKMAGIC) ||
 565                             (*magic == BSD_MAGICDISK))
 566                                 return;
 567                 }
 568         }
 569
 570         memset(buf, 0, 512*nsect);
 571         io_channel_set_blksize(fs->io, 512);
 572         retval = io_channel_write_blk64(fs->io, sect, -512*nsect, buf);
 573         io_channel_set_blksize(fs->io, fs->blocksize);
 574         free(buf);
 575         if (retval)
 576                 fprintf(stderr, _("Warning: could not erase sector %d: %s\n"),
 577                         sect, error_message(retval));
 578 }
 579
 580 static void create_journal_dev(ext2_filsys fs)
 581 {
 582         struct ext2fs_numeric_progress_struct progress;
 583         errcode_t               retval;
 584         char                    *buf;
 585         blk64_t                 blk, err_blk;
 586         int                     c, count, err_count;
 587
 588         retval = ext2fs_create_journal_superblock(fs,
 589                                   ext2fs_blocks_count(fs->super), 0, &buf);
 590         if (retval) {
 591                 com_err("create_journal_dev", retval, "%s",
 592                         _("while initializing journal superblock"));
 593                 exit(1);
 594         }
 595
 596         if (journal_flags & EXT2_MKJOURNAL_LAZYINIT)
 597                 goto write_superblock;
 598
 599         ext2fs_numeric_progress_init(fs, &progress,
 600                                      _("Zeroing journal device: "),
 601                                      ext2fs_blocks_count(fs->super));
 602         blk = 0;
 603         count = ext2fs_blocks_count(fs->super);
 604         while (count > 0) {
 605                 if (count > 1024)
 606                         c = 1024;
 607                 else
 608                         c = count;
 609                 retval = ext2fs_zero_blocks2(fs, blk, c, &err_blk, &err_count);
 610                 if (retval) {
 611                         com_err("create_journal_dev", retval,
 612                                 _("while zeroing journal device "
 613                                   "(block %llu, count %d)"),
 614                                 err_blk, err_count);
 615                         exit(1);
 616                 }
 617                 blk += c;
 618                 count -= c;
 619                 ext2fs_numeric_progress_update(fs, &progress, blk);
 620         }
 621         ext2fs_zero_blocks2(0, 0, 0, 0, 0);
 622
 623         ext2fs_numeric_progress_close(fs, &progress, NULL);
 624 write_superblock:
 625         retval = io_channel_write_blk64(fs->io,
 626                                         fs->super->s_first_data_block+1,
 627                                         1, buf);
 628         if (retval) {
 629                 com_err("create_journal_dev", retval, "%s",
 630                         _("while writing journal superblock"));
 631                 exit(1);
 632         }
 633 }
 634
 635 static void show_stats(ext2_filsys fs)
 636 {
 637         struct ext2_super_block *s = fs->super;
 638         char                    buf[80];
 639         char                    *os;
 640         blk64_t                 group_block;
 641         dgrp_t                  i;
 642         int                     need, col_left;
 643
 644         if (!verbose) {
 645                 printf(_("Creating filesystem with %llu %dk blocks and "
 646                          "%u inodes\n"),
 647                        ext2fs_blocks_count(s), fs->blocksize >> 10,
 648                        s->s_inodes_count);
 649                 goto skip_details;
 650         }
 651
 652         if (ext2fs_blocks_count(&fs_param) != ext2fs_blocks_count(s))
 653                 fprintf(stderr, _("warning: %llu blocks unused.\n\n"),
 654                        ext2fs_blocks_count(&fs_param) - ext2fs_blocks_count(s));
 655
 656         memset(buf, 0, sizeof(buf));
 657         strncpy(buf, s->s_volume_name, sizeof(s->s_volume_name));
 658         printf(_("Filesystem label=%s\n"), buf);
 659         os = e2p_os2string(fs->super->s_creator_os);
 660         if (os)
 661                 printf(_("OS type: %s\n"), os);
 662         free(os);
 663         printf(_("Block size=%u (log=%u)\n"), fs->blocksize,
 664                 s->s_log_block_size);
 665         if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
 666                                        EXT4_FEATURE_RO_COMPAT_BIGALLOC))
 667                 printf(_("Cluster size=%u (log=%u)\n"),
 668                        fs->blocksize << fs->cluster_ratio_bits,
 669                        s->s_log_cluster_size);
 670         else
 671                 printf(_("Fragment size=%u (log=%u)\n"), EXT2_CLUSTER_SIZE(s),
 672                        s->s_log_cluster_size);
 673         printf(_("Stride=%u blocks, Stripe width=%u blocks\n"),
 674                s->s_raid_stride, s->s_raid_stripe_width);
 675         printf(_("%u inodes, %llu blocks\n"), s->s_inodes_count,
 676                ext2fs_blocks_count(s));
 677         printf(_("%llu blocks (%2.2f%%) reserved for the super user\n"),
 678                 ext2fs_r_blocks_count(s),
 679                100.0 *  ext2fs_r_blocks_count(s) / ext2fs_blocks_count(s));
 680         printf(_("First data block=%u\n"), s->s_first_data_block);
 681         if (root_uid != 0 || root_gid != 0)
 682                 printf(_("Root directory owner=%u:%u\n"), root_uid, root_gid);
 683         if (s->s_reserved_gdt_blocks)
 684                 printf(_("Maximum filesystem blocks=%lu\n"),
 685                        (s->s_reserved_gdt_blocks + fs->desc_blocks) *
 686                        EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group);
 687         if (fs->group_desc_count > 1)
 688                 printf(_("%u block groups\n"), fs->group_desc_count);
 689         else
 690                 printf(_("%u block group\n"), fs->group_desc_count);
 691         if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
 692                                        EXT4_FEATURE_RO_COMPAT_BIGALLOC))
 693                 printf(_("%u blocks per group, %u clusters per group\n"),
 694                        s->s_blocks_per_group, s->s_clusters_per_group);
 695         else
 696                 printf(_("%u blocks per group, %u fragments per group\n"),
 697                        s->s_blocks_per_group, s->s_clusters_per_group);
 698         printf(_("%u inodes per group\n"), s->s_inodes_per_group);
 699
 700 skip_details:
 701         if (fs->group_desc_count == 1) {
 702                 printf("\n");
 703                 return;
 704         }
 705
 706         if (!e2p_is_null_uuid(s->s_uuid))
 707                 printf(_("Filesystem UUID: %s\n"), e2p_uuid2str(s->s_uuid));
 708         printf("%s", _("Superblock backups stored on blocks: "));
 709         group_block = s->s_first_data_block;
 710         col_left = 0;
 711         for (i = 1; i < fs->group_desc_count; i++) {
 712                 group_block += s->s_blocks_per_group;
 713                 if (!ext2fs_bg_has_super(fs, i))
 714                         continue;
 715                 if (i != 1)
 716                         printf(", ");
 717                 need = int_log10(group_block) + 2;
 718                 if (need > col_left) {
 719                         printf("\n\t");
 720                         col_left = 72;
 721                 }
 722                 col_left -= need;
 723                 printf("%llu", group_block);
 724         }
 725         printf("\n\n");
 726 }
 727
 728 /*
 729  * Returns true if making a file system for the Hurd, else 0
 730  */
 731 static int for_hurd(const char *os)
 732 {
 733         if (!os) {
 734 #ifdef __GNU__
 735                 return 1;
 736 #else
 737                 return 0;
 738 #endif
 739         }
 740         if (isdigit(*os))
 741                 return (atoi(os) == EXT2_OS_HURD);
 742         return (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0);
 743 }
 744
 745 /*
 746  * Set the S_CREATOR_OS field.  Return true if OS is known,
 747  * otherwise, 0.
 748  */
 749 static int set_os(struct ext2_super_block *sb, char *os)
 750 {
 751         if (isdigit (*os))
 752                 sb->s_creator_os = atoi (os);
 753         else if (strcasecmp(os, "linux") == 0)
 754                 sb->s_creator_os = EXT2_OS_LINUX;
 755         else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0)
 756                 sb->s_creator_os = EXT2_OS_HURD;
 757         else if (strcasecmp(os, "freebsd") == 0)
 758                 sb->s_creator_os = EXT2_OS_FREEBSD;
 759         else if (strcasecmp(os, "lites") == 0)
 760                 sb->s_creator_os = EXT2_OS_LITES;
 761         else
 762                 return 0;
 763         return 1;
 764 }
 765
 766 #define PATH_SET "PATH=/sbin"
 767
 768 static void parse_extended_opts(struct ext2_super_block *param,
 769                                 const char *opts)
 770 {
 771         char    *buf, *token, *next, *p, *arg, *badopt = 0;
 772         int     len;
 773         int     r_usage = 0;
 774
 775         len = strlen(opts);
 776         buf = malloc(len+1);
 777         if (!buf) {
 778                 fprintf(stderr, "%s",
 779                         _("Couldn't allocate memory to parse options!\n"));
 780                 exit(1);
 781         }
 782         strcpy(buf, opts);
 783         for (token = buf; token && *token; token = next) {
 784                 p = strchr(token, ',');
 785                 next = 0;
 786                 if (p) {
 787                         *p = 0;
 788                         next = p+1;
 789                 }
 790                 arg = strchr(token, '=');
 791                 if (arg) {
 792                         *arg = 0;
 793                         arg++;
 794                 }
 795                 if (strcmp(token, "desc-size") == 0 ||
 796                     strcmp(token, "desc_size") == 0) {
 797                         int desc_size;
 798
 799                         if (!(fs_param.s_feature_incompat &
 800                               EXT4_FEATURE_INCOMPAT_64BIT)) {
 801                                 fprintf(stderr,
 802                                         _("%s requires '-O 64bit'\n"), token);
 803                                 r_usage++;
 804                                 continue;
 805                         }
 806                         if (param->s_reserved_gdt_blocks != 0) {
 807                                 fprintf(stderr,
 808                                         _("'%s' must be before 'resize=%u'\n"),
 809                                         token, param->s_reserved_gdt_blocks);
 810                                 r_usage++;
 811                                 continue;
 812                         }
 813                         if (!arg) {
 814                                 r_usage++;
 815                                 badopt = token;
 816                                 continue;
 817                         }
 818                         desc_size = strtoul(arg, &p, 0);
 819                         if (*p || (desc_size & (desc_size - 1))) {
 820                                 fprintf(stderr,
 821                                         _("Invalid desc_size: '%s'\n"), arg);
 822                                 r_usage++;
 823                                 continue;
 824                         }
 825                         param->s_desc_size = desc_size;
 826                 } else if (strcmp(token, "offset") == 0) {
 827                         if (!arg) {
 828                                 r_usage++;
 829                                 badopt = token;
 830                                 continue;
 831                         }
 832                         offset = strtoull(arg, &p, 0);
 833                         if (*p) {
 834                                 fprintf(stderr, _("Invalid offset: %s\n"),
 835                                         arg);
 836                                 r_usage++;
 837                                 continue;
 838                         }
 839                 } else if (strcmp(token, "mmp_update_interval") == 0) {
 840                         if (!arg) {
 841                                 r_usage++;
 842                                 badopt = token;
 843                                 continue;
 844                         }
 845                         param->s_mmp_update_interval = strtoul(arg, &p, 0);
 846                         if (*p) {
 847                                 fprintf(stderr,
 848                                         _("Invalid mmp_update_interval: %s\n"),
 849                                         arg);
 850                                 r_usage++;
 851                                 continue;
 852                         }
 853                 } else if (strcmp(token, "num_backup_sb") == 0) {
 854                         if (!arg) {
 855                                 r_usage++;
 856                                 badopt = token;
 857                                 continue;
 858                         }
 859                         num_backups = strtoul(arg, &p, 0);
 860                         if (*p || num_backups > 2) {
 861                                 fprintf(stderr,
 862                                         _("Invalid # of backup "
 863                                           "superbocks: %s\n"),
 864                                         arg);
 865                                 r_usage++;
 866                                 continue;
 867                         }
 868                 } else if (strcmp(token, "packed_meta_blocks") == 0) {
 869                         if (arg)
 870                                 packed_meta_blocks = strtoul(arg, &p, 0);
 871                         else
 872                                 packed_meta_blocks = 1;
 873                         if (packed_meta_blocks)
 874                                 journal_location = 0;
 875                 } else if (strcmp(token, "stride") == 0) {
 876                         if (!arg) {
 877                                 r_usage++;
 878                                 badopt = token;
 879                                 continue;
 880                         }
 881                         param->s_raid_stride = strtoul(arg, &p, 0);
 882                         if (*p) {
 883                                 fprintf(stderr,
 884                                         _("Invalid stride parameter: %s\n"),
 885                                         arg);
 886                                 r_usage++;
 887                                 continue;
 888                         }
 889                 } else if (strcmp(token, "stripe-width") == 0 ||
 890                            strcmp(token, "stripe_width") == 0) {
 891                         if (!arg) {
 892                                 r_usage++;
 893                                 badopt = token;
 894                                 continue;
 895                         }
 896                         param->s_raid_stripe_width = strtoul(arg, &p, 0);
 897                         if (*p) {
 898                                 fprintf(stderr,
 899                                         _("Invalid stripe-width parameter: %s\n"),
 900                                         arg);
 901                                 r_usage++;
 902                                 continue;
 903                         }
 904                 } else if (!strcmp(token, "resize")) {
 905                         blk64_t resize;
 906                         unsigned long bpg, rsv_groups;
 907                         unsigned long group_desc_count, desc_blocks;
 908                         unsigned int gdpb, blocksize;
 909                         int rsv_gdb;
 910
 911                         if (!arg) {
 912                                 r_usage++;
 913                                 badopt = token;
 914                                 continue;
 915                         }
 916
 917                         resize = parse_num_blocks2(arg,
 918                                                    param->s_log_block_size);
 919
 920                         if (resize == 0) {
 921                                 fprintf(stderr,
 922                                         _("Invalid resize parameter: %s\n"),
 923                                         arg);
 924                                 r_usage++;
 925                                 continue;
 926                         }
 927                         if (resize <= ext2fs_blocks_count(param)) {
 928                                 fprintf(stderr, "%s",
 929                                         _("The resize maximum must be greater "
 930                                           "than the filesystem size.\n"));
 931                                 r_usage++;
 932                                 continue;
 933                         }
 934
 935                         blocksize = EXT2_BLOCK_SIZE(param);
 936                         bpg = param->s_blocks_per_group;
 937                         if (!bpg)
 938                                 bpg = blocksize * 8;
 939                         gdpb = EXT2_DESC_PER_BLOCK(param);
 940                         group_desc_count = (__u32) ext2fs_div64_ceil(
 941                                 ext2fs_blocks_count(param), bpg);
 942                         desc_blocks = (group_desc_count +
 943                                        gdpb - 1) / gdpb;
 944                         rsv_groups = ext2fs_div64_ceil(resize, bpg);
 945                         rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) -
 946                                 desc_blocks;
 947                         if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param))
 948                                 rsv_gdb = EXT2_ADDR_PER_BLOCK(param);
 949
 950                         if (rsv_gdb > 0) {
 951                                 if (param->s_rev_level == EXT2_GOOD_OLD_REV) {
 952                                         fprintf(stderr, "%s",
 953         _("On-line resizing not supported with revision 0 filesystems\n"));
 954                                         free(buf);
 955                                         exit(1);
 956                                 }
 957                                 param->s_feature_compat |=
 958                                         EXT2_FEATURE_COMPAT_RESIZE_INODE;
 959
 960                                 param->s_reserved_gdt_blocks = rsv_gdb;
 961                         }
 962                 } else if (!strcmp(token, "test_fs")) {
 963                         param->s_flags |= EXT2_FLAGS_TEST_FILESYS;
 964                 } else if (!strcmp(token, "lazy_itable_init")) {
 965                         if (arg)
 966                                 lazy_itable_init = strtoul(arg, &p, 0);
 967                         else
 968                                 lazy_itable_init = 1;
 969                 } else if (!strcmp(token, "lazy_journal_init")) {
 970                         if (arg)
 971                                 journal_flags |= strtoul(arg, &p, 0) ?
 972                                                 EXT2_MKJOURNAL_LAZYINIT : 0;
 973                         else
 974                                 journal_flags |= EXT2_MKJOURNAL_LAZYINIT;
 975                 } else if (!strcmp(token, "root_owner")) {
 976                         if (arg) {
 977                                 root_uid = strtoul(arg, &p, 0);
 978                                 if (*p != ':') {
 979                                         fprintf(stderr,
 980                                                 _("Invalid root_owner: '%s'\n"),
 981                                                 arg);
 982                                         r_usage++;
 983                                         continue;
 984                                 }
 985                                 p++;
 986                                 root_gid = strtoul(p, &p, 0);
 987                                 if (*p) {
 988                                         fprintf(stderr,
 989                                                 _("Invalid root_owner: '%s'\n"),
 990                                                 arg);
 991                                         r_usage++;
 992                                         continue;
 993                                 }
 994                         } else {
 995                                 root_uid = getuid();
 996                                 root_gid = getgid();
 997                         }
 998                 } else if (!strcmp(token, "discard")) {
 999                         discard = 1;
1000                 } else if (!strcmp(token, "nodiscard")) {
1001                         discard = 0;
1002                 } else if (!strcmp(token, "quotatype")) {
1003                         if (!arg) {
1004                                 r_usage++;
1005                                 badopt = token;
1006                                 continue;
1007                         }
1008                         if (!strncmp(arg, "usr", 3)) {
1009                                 quotatype = 0;
1010                         } else if (!strncmp(arg, "grp", 3)) {
1011                                 quotatype = 1;
1012                         } else {
1013                                 fprintf(stderr,
1014                                         _("Invalid quotatype parameter: %s\n"),
1015                                         arg);
1016                                 r_usage++;
1017                                 continue;
1018                         }
1019                 } else {
1020                         r_usage++;
1021                         badopt = token;
1022                 }
1023         }
1024         if (r_usage) {
1025                 fprintf(stderr, _("\nBad option(s) specified: %s\n\n"
1026                         "Extended options are separated by commas, "
1027                         "and may take an argument which\n"
1028                         "\tis set off by an equals ('=') sign.\n\n"
1029                         "Valid extended options are:\n"
1030                         "\tmmp_update_interval=<interval>\n"
1031                         "\tnum_backup_sb=<0|1|2>\n"
1032                         "\tstride=<RAID per-disk data chunk in blocks>\n"
1033                         "\tstripe-width=<RAID stride * data disks in blocks>\n"
1034                         "\toffset=<offset to create the file system>\n"
1035                         "\tresize=<resize maximum size in blocks>\n"
1036                         "\tpacked_meta_blocks=<0 to disable, 1 to enable>\n"
1037                         "\tlazy_itable_init=<0 to disable, 1 to enable>\n"
1038                         "\tlazy_journal_init=<0 to disable, 1 to enable>\n"
1039                         "\troot_uid=<uid of root directory>\n"
1040                         "\troot_gid=<gid of root directory>\n"
1041                         "\ttest_fs\n"
1042                         "\tdiscard\n"
1043                         "\tnodiscard\n"
1044                         "\tquotatype=<usr OR grp>\n\n"),
1045                         badopt ? badopt : "");
1046                 free(buf);
1047                 exit(1);
1048         }
1049         if (param->s_raid_stride &&
1050             (param->s_raid_stripe_width % param->s_raid_stride) != 0)
1051                 fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even "
1052                                   "multiple of stride %u.\n\n"),
1053                         param->s_raid_stripe_width, param->s_raid_stride);
1054
1055         free(buf);
1056 }
1057
1058 static __u32 ok_features[3] = {
1059         /* Compat */
1060         EXT3_FEATURE_COMPAT_HAS_JOURNAL |
1061                 EXT2_FEATURE_COMPAT_RESIZE_INODE |
1062                 EXT2_FEATURE_COMPAT_DIR_INDEX |
1063                 EXT2_FEATURE_COMPAT_EXT_ATTR |
1064                 EXT4_FEATURE_COMPAT_SPARSE_SUPER2,
1065         /* Incompat */
1066         EXT2_FEATURE_INCOMPAT_FILETYPE|
1067                 EXT3_FEATURE_INCOMPAT_EXTENTS|
1068                 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
1069                 EXT2_FEATURE_INCOMPAT_META_BG|
1070                 EXT4_FEATURE_INCOMPAT_FLEX_BG|
1071                 EXT4_FEATURE_INCOMPAT_MMP |
1072                 EXT4_FEATURE_INCOMPAT_64BIT|
1073                 EXT4_FEATURE_INCOMPAT_INLINE_DATA,
1074         /* R/O compat */
1075         EXT2_FEATURE_RO_COMPAT_LARGE_FILE|
1076                 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
1077                 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
1078                 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
1079                 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|
1080                 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
1081                 EXT4_FEATURE_RO_COMPAT_BIGALLOC|
1082 #ifdef CONFIG_QUOTA
1083                 EXT4_FEATURE_RO_COMPAT_QUOTA|
1084 #endif
1085                 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM
1086 };
1087
1088
1089 static void syntax_err_report(const char *filename, long err, int line_num)
1090 {
1091         fprintf(stderr,
1092                 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"),
1093                 filename, line_num, error_message(err));
1094         exit(1);
1095 }
1096
1097 static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 };
1098
1099 static void edit_feature(const char *str, __u32 *compat_array)
1100 {
1101         if (!str)
1102                 return;
1103
1104         if (e2p_edit_feature(str, compat_array, ok_features)) {
1105                 fprintf(stderr, _("Invalid filesystem option set: %s\n"),
1106                         str);
1107                 exit(1);
1108         }
1109 }
1110
1111 static void edit_mntopts(const char *str, __u32 *mntopts)
1112 {
1113         if (!str)
1114                 return;
1115
1116         if (e2p_edit_mntopts(str, mntopts, ~0)) {
1117                 fprintf(stderr, _("Invalid mount option set: %s\n"),
1118                         str);
1119                 exit(1);
1120         }
1121 }
1122
1123 struct str_list {
1124         char **list;
1125         int num;
1126         int max;
1127 };
1128
1129 static errcode_t init_list(struct str_list *sl)
1130 {
1131         sl->num = 0;
1132         sl->max = 0;
1133         sl->list = malloc((sl->max+1) * sizeof(char *));
1134         if (!sl->list)
1135                 return ENOMEM;
1136         sl->list[0] = 0;
1137         return 0;
1138 }
1139
1140 static errcode_t push_string(struct str_list *sl, const char *str)
1141 {
1142         char **new_list;
1143
1144         if (sl->num >= sl->max) {
1145                 sl->max += 2;
1146                 new_list = realloc(sl->list, (sl->max+1) * sizeof(char *));
1147                 if (!new_list)
1148                         return ENOMEM;
1149                 sl->list = new_list;
1150         }
1151         sl->list[sl->num] = malloc(strlen(str)+1);
1152         if (sl->list[sl->num] == 0)
1153                 return ENOMEM;
1154         strcpy(sl->list[sl->num], str);
1155         sl->num++;
1156         sl->list[sl->num] = 0;
1157         return 0;
1158 }
1159
1160 static void print_str_list(char **list)
1161 {
1162         char **cpp;
1163
1164         for (cpp = list; *cpp; cpp++) {
1165                 printf("'%s'", *cpp);
1166                 if (cpp[1])
1167                         fputs(", ", stdout);
1168         }
1169         fputc('\n', stdout);
1170 }
1171
1172 /*
1173  * Return TRUE if the profile has the given subsection
1174  */
1175 static int profile_has_subsection(profile_t prof, const char *section,
1176                                   const char *subsection)
1177 {
1178         void                    *state;
1179         const char              *names[4];
1180         char                    *name;
1181         int                     ret = 0;
1182
1183         names[0] = section;
1184         names[1] = subsection;
1185         names[2] = 0;
1186
1187         if (profile_iterator_create(prof, names,
1188                                     PROFILE_ITER_LIST_SECTION |
1189                                     PROFILE_ITER_RELATIONS_ONLY, &state))
1190                 return 0;
1191
1192         if ((profile_iterator(&state, &name, 0) == 0) && name) {
1193                 free(name);
1194                 ret = 1;
1195         }
1196
1197         profile_iterator_free(&state);
1198         return ret;
1199 }
1200
1201 static char **parse_fs_type(const char *fs_type,
1202                             const char *usage_types,
1203                             struct ext2_super_block *sb,
1204                             blk64_t fs_blocks_count,
1205                             char *progname)
1206 {
1207         const char      *ext_type = 0;
1208         char            *parse_str;
1209         char            *profile_type = 0;
1210         char            *cp, *t;
1211         const char      *size_type;
1212         struct str_list list;
1213         unsigned long long meg;
1214         int             is_hurd = for_hurd(creator_os);
1215
1216         if (init_list(&list))
1217                 return 0;
1218
1219         if (fs_type)
1220                 ext_type = fs_type;
1221         else if (is_hurd)
1222                 ext_type = "ext2";
1223         else if (!strcmp(program_name, "mke3fs"))
1224                 ext_type = "ext3";
1225         else if (!strcmp(program_name, "mke4fs"))
1226                 ext_type = "ext4";
1227         else if (progname) {
1228                 ext_type = strrchr(progname, '/');
1229                 if (ext_type)
1230                         ext_type++;
1231                 else
1232                         ext_type = progname;
1233
1234                 if (!strncmp(ext_type, "mkfs.", 5)) {
1235                         ext_type += 5;
1236                         if (ext_type[0] == 0)
1237                                 ext_type = 0;
1238                 } else
1239                         ext_type = 0;
1240         }
1241
1242         if (!ext_type) {
1243                 profile_get_string(profile, "defaults", "fs_type", 0,
1244                                    "ext2", &profile_type);
1245                 ext_type = profile_type;
1246                 if (!strcmp(ext_type, "ext2") && (journal_size != 0))
1247                         ext_type = "ext3";
1248         }
1249
1250
1251         if (!profile_has_subsection(profile, "fs_types", ext_type) &&
1252             strcmp(ext_type, "ext2")) {
1253                 printf(_("\nYour mke2fs.conf file does not define the "
1254                          "%s filesystem type.\n"), ext_type);
1255                 if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") ||
1256                     !strcmp(ext_type, "ext4dev")) {
1257                         printf("%s", _("You probably need to install an "
1258                                        "updated mke2fs.conf file.\n\n"));
1259                 }
1260                 if (!force) {
1261                         printf("%s", _("Aborting...\n"));
1262                         exit(1);
1263                 }
1264         }
1265
1266         meg = (1024 * 1024) / EXT2_BLOCK_SIZE(sb);
1267         if (fs_blocks_count < 3 * meg)
1268                 size_type = "floppy";
1269         else if (fs_blocks_count < 512 * meg)
1270                 size_type = "small";
1271         else if (fs_blocks_count < 4 * 1024 * 1024 * meg)
1272                 size_type = "default";
1273         else if (fs_blocks_count < 16 * 1024 * 1024 * meg)
1274                 size_type = "big";
1275         else
1276                 size_type = "huge";
1277
1278         if (!usage_types)
1279                 usage_types = size_type;
1280
1281         parse_str = malloc(strlen(usage_types)+1);
1282         if (!parse_str) {
1283                 free(profile_type);
1284                 free(list.list);
1285                 return 0;
1286         }
1287         strcpy(parse_str, usage_types);
1288
1289         if (ext_type)
1290                 push_string(&list, ext_type);
1291         cp = parse_str;
1292         while (1) {
1293                 t = strchr(cp, ',');
1294                 if (t)
1295                         *t = '\0';
1296
1297                 if (*cp) {
1298                         if (profile_has_subsection(profile, "fs_types", cp))
1299                                 push_string(&list, cp);
1300                         else if (strcmp(cp, "default") != 0)
1301                                 fprintf(stderr,
1302                                         _("\nWarning: the fs_type %s is not "
1303                                           "defined in mke2fs.conf\n\n"),
1304                                         cp);
1305                 }
1306                 if (t)
1307                         cp = t+1;
1308                 else
1309                         break;
1310         }
1311         free(parse_str);
1312         free(profile_type);
1313         if (is_hurd)
1314                 push_string(&list, "hurd");
1315         return (list.list);
1316 }
1317
1318 char *get_string_from_profile(char **types, const char *opt,
1319                                      const char *def_val)
1320 {
1321         char *ret = 0;
1322         int i;
1323
1324         for (i=0; types[i]; i++);
1325         for (i-=1; i >=0 ; i--) {
1326                 profile_get_string(profile, "fs_types", types[i],
1327                                    opt, 0, &ret);
1328                 if (ret)
1329                         return ret;
1330         }
1331         profile_get_string(profile, "defaults", opt, 0, def_val, &ret);
1332         return (ret);
1333 }
1334
1335 int get_int_from_profile(char **types, const char *opt, int def_val)
1336 {
1337         int ret;
1338         char **cpp;
1339
1340         profile_get_integer(profile, "defaults", opt, 0, def_val, &ret);
1341         for (cpp = types; *cpp; cpp++)
1342                 profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret);
1343         return ret;
1344 }
1345
1346 static double get_double_from_profile(char **types, const char *opt,
1347                                       double def_val)
1348 {
1349         double ret;
1350         char **cpp;
1351
1352         profile_get_double(profile, "defaults", opt, 0, def_val, &ret);
1353         for (cpp = types; *cpp; cpp++)
1354                 profile_get_double(profile, "fs_types", *cpp, opt, ret, &ret);
1355         return ret;
1356 }
1357
1358 int get_bool_from_profile(char **types, const char *opt, int def_val)
1359 {
1360         int ret;
1361         char **cpp;
1362
1363         profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret);
1364         for (cpp = types; *cpp; cpp++)
1365                 profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret);
1366         return ret;
1367 }
1368
1369 extern const char *mke2fs_default_profile;
1370 static const char *default_files[] = { "<default>", 0 };
1371
1372 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1373 /*
1374  * Sets the geometry of a device (stripe/stride), and returns the
1375  * device's alignment offset, if any, or a negative error.
1376  */
1377 static int get_device_geometry(const char *file,
1378                                struct ext2_super_block *fs_param,
1379                                int psector_size)
1380 {
1381         int rc = -1;
1382         int blocksize;
1383         blkid_probe pr;
1384         blkid_topology tp;
1385         unsigned long min_io;
1386         unsigned long opt_io;
1387         struct stat statbuf;
1388
1389         /* Nothing to do for a regular file */
1390         if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode))
1391                 return 0;
1392
1393         pr = blkid_new_probe_from_filename(file);
1394         if (!pr)
1395                 goto out;
1396
1397         tp = blkid_probe_get_topology(pr);
1398         if (!tp)
1399                 goto out;
1400
1401         min_io = blkid_topology_get_minimum_io_size(tp);
1402         opt_io = blkid_topology_get_optimal_io_size(tp);
1403         blocksize = EXT2_BLOCK_SIZE(fs_param);
1404         if ((min_io == 0) && (psector_size > blocksize))
1405                 min_io = psector_size;
1406         if ((opt_io == 0) && min_io)
1407                 opt_io = min_io;
1408         if ((opt_io == 0) && (psector_size > blocksize))
1409                 opt_io = psector_size;
1410
1411         /* setting stripe/stride to blocksize is pointless */
1412         if (min_io > blocksize)
1413                 fs_param->s_raid_stride = min_io / blocksize;
1414         if (opt_io > blocksize)
1415                 fs_param->s_raid_stripe_width = opt_io / blocksize;
1416
1417         rc = blkid_topology_get_alignment_offset(tp);
1418 out:
1419         blkid_free_probe(pr);
1420         return rc;
1421 }
1422 #endif
1423
1424 static void PRS(int argc, char *argv[])
1425 {
1426         int             b, c, flags;
1427         int             cluster_size = 0;
1428         char            *tmp, **cpp;
1429         int             blocksize = 0;
1430         int             inode_ratio = 0;
1431         int             inode_size = 0;
1432         unsigned long   flex_bg_size = 0;
1433         double          reserved_ratio = -1.0;
1434         int             lsector_size = 0, psector_size = 0;
1435         int             show_version_only = 0, is_device = 0;
1436         unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */
1437         errcode_t       retval;
1438         char *          oldpath = getenv("PATH");
1439         char *          extended_opts = 0;
1440         char *          fs_type = 0;
1441         char *          usage_types = 0;
1442         /*
1443          * NOTE: A few words about fs_blocks_count and blocksize:
1444          *
1445          * Initially, blocksize is set to zero, which implies 1024.
1446          * If -b is specified, blocksize is updated to the user's value.
1447          *
1448          * Next, the device size or the user's "blocks" command line argument
1449          * is used to set fs_blocks_count; the units are blocksize.
1450          *
1451          * Later, if blocksize hasn't been set and the profile specifies a
1452          * blocksize, then blocksize is updated and fs_blocks_count is scaled
1453          * appropriately.  Note the change in units!
1454          *
1455          * Finally, we complain about fs_blocks_count > 2^32 on a non-64bit fs.
1456          */
1457         blk64_t         fs_blocks_count = 0;
1458         long            sysval;
1459         int             s_opt = -1, r_opt = -1;
1460         char            *fs_features = 0;
1461         int             use_bsize;
1462         char            *newpath;
1463         int             pathlen = sizeof(PATH_SET) + 1;
1464
1465         if (oldpath)
1466                 pathlen += strlen(oldpath);
1467         newpath = malloc(pathlen);
1468         if (!newpath) {
1469                 fprintf(stderr, "%s",
1470                         _("Couldn't allocate memory for new PATH.\n"));
1471                 exit(1);
1472         }
1473         strcpy(newpath, PATH_SET);
1474
1475         /* Update our PATH to include /sbin  */
1476         if (oldpath) {
1477                 strcat (newpath, ":");
1478                 strcat (newpath, oldpath);
1479         }
1480         putenv (newpath);
1481
1482         tmp = getenv("MKE2FS_SYNC");
1483         if (tmp)
1484                 sync_kludge = atoi(tmp);
1485
1486         /* Determine the system page size if possible */
1487 #ifdef HAVE_SYSCONF
1488 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
1489 #define _SC_PAGESIZE _SC_PAGE_SIZE
1490 #endif
1491 #ifdef _SC_PAGESIZE
1492         sysval = sysconf(_SC_PAGESIZE);
1493         if (sysval > 0)
1494                 sys_page_size = sysval;
1495 #endif /* _SC_PAGESIZE */
1496 #endif /* HAVE_SYSCONF */
1497
1498         if ((tmp = getenv("MKE2FS_CONFIG")) != NULL)
1499                 config_fn[0] = tmp;
1500         profile_set_syntax_err_cb(syntax_err_report);
1501         retval = profile_init(config_fn, &profile);
1502         if (retval == ENOENT) {
1503                 retval = profile_init(default_files, &profile);
1504                 if (retval)
1505                         goto profile_error;
1506                 retval = profile_set_default(profile, mke2fs_default_profile);
1507                 if (retval)
1508                         goto profile_error;
1509         } else if (retval) {
1510 profile_error:
1511                 fprintf(stderr, _("Couldn't init profile successfully"
1512                                   " (error: %ld).\n"), retval);
1513                 exit(1);
1514         }
1515
1516         setbuf(stdout, NULL);
1517         setbuf(stderr, NULL);
1518         add_error_table(&et_ext2_error_table);
1519         add_error_table(&et_prof_error_table);
1520         memset(&fs_param, 0, sizeof(struct ext2_super_block));
1521         fs_param.s_rev_level = 1;  /* Create revision 1 filesystems now */
1522
1523         if (is_before_linux_ver(2, 2))
1524                 fs_param.s_rev_level = 0;
1525
1526         if (argc && *argv) {
1527                 program_name = get_progname(*argv);
1528
1529                 /* If called as mkfs.ext3, create a journal inode */
1530                 if (!strcmp(program_name, "mkfs.ext3") ||
1531                     !strcmp(program_name, "mke3fs"))
1532                         journal_size = -1;
1533         }
1534
1535         while ((c = getopt (argc, argv,
1536                     "b:cg:i:jl:m:no:qr:s:t:d:vC:DE:FG:I:J:KL:M:N:O:R:ST:U:V")) != EOF) {
1537                 switch (c) {
1538                 case 'b':
1539                         blocksize = parse_num_blocks2(optarg, -1);
1540                         b = (blocksize > 0) ? blocksize : -blocksize;
1541                         if (b < EXT2_MIN_BLOCK_SIZE ||
1542                             b > EXT2_MAX_BLOCK_SIZE) {
1543                                 com_err(program_name, 0,
1544                                         _("invalid block size - %s"), optarg);
1545                                 exit(1);
1546                         }
1547                         if (blocksize > 4096)
1548                                 fprintf(stderr, _("Warning: blocksize %d not "
1549                                                   "usable on most systems.\n"),
1550                                         blocksize);
1551                         if (blocksize > 0)
1552                                 fs_param.s_log_block_size =
1553                                         int_log2(blocksize >>
1554                                                  EXT2_MIN_BLOCK_LOG_SIZE);
1555                         break;
1556                 case 'c':       /* Check for bad blocks */
1557                         cflag++;
1558                         break;
1559                 case 'C':
1560                         cluster_size = parse_num_blocks2(optarg, -1);
1561                         if (cluster_size <= EXT2_MIN_CLUSTER_SIZE ||
1562                             cluster_size > EXT2_MAX_CLUSTER_SIZE) {
1563                                 com_err(program_name, 0,
1564                                         _("invalid cluster size - %s"),
1565                                         optarg);
1566                                 exit(1);
1567                         }
1568                         break;
1569                 case 'D':
1570                         direct_io = 1;
1571                         break;
1572                 case 'R':
1573                         com_err(program_name, 0, "%s",
1574                                 _("'-R' is deprecated, use '-E' instead"));
1575                         /* fallthrough */
1576                 case 'E':
1577                         extended_opts = optarg;
1578                         break;
1579                 case 'F':
1580                         force++;
1581                         break;
1582                 case 'g':
1583                         fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
1584                         if (*tmp) {
1585                                 com_err(program_name, 0, "%s",
1586                                 _("Illegal number for blocks per group"));
1587                                 exit(1);
1588                         }
1589                         if ((fs_param.s_blocks_per_group % 8) != 0) {
1590                                 com_err(program_name, 0, "%s",
1591                                 _("blocks per group must be multiple of 8"));
1592                                 exit(1);
1593                         }
1594                         break;
1595                 case 'G':
1596                         flex_bg_size = strtoul(optarg, &tmp, 0);
1597                         if (*tmp) {
1598                                 com_err(program_name, 0, "%s",
1599                                         _("Illegal number for flex_bg size"));
1600                                 exit(1);
1601                         }
1602                         if (flex_bg_size < 1 ||
1603                             (flex_bg_size & (flex_bg_size-1)) != 0) {
1604                                 com_err(program_name, 0, "%s",
1605                                         _("flex_bg size must be a power of 2"));
1606                                 exit(1);
1607                         }
1608                         break;
1609                 case 'i':
1610                         inode_ratio = strtoul(optarg, &tmp, 0);
1611                         if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
1612                             inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024 ||
1613                             *tmp) {
1614                                 com_err(program_name, 0,
1615                                         _("invalid inode ratio %s (min %d/max %d)"),
1616                                         optarg, EXT2_MIN_BLOCK_SIZE,
1617                                         EXT2_MAX_BLOCK_SIZE * 1024);
1618                                 exit(1);
1619                         }
1620                         break;
1621                 case 'I':
1622                         inode_size = strtoul(optarg, &tmp, 0);
1623                         if (*tmp) {
1624                                 com_err(program_name, 0,
1625                                         _("invalid inode size - %s"), optarg);
1626                                 exit(1);
1627                         }
1628                         break;
1629                 case 'j':
1630                         if (!journal_size)
1631                                 journal_size = -1;
1632                         break;
1633                 case 'J':
1634                         parse_journal_opts(optarg);
1635                         break;
1636                 case 'K':
1637                         fprintf(stderr, "%s",
1638                                 _("Warning: -K option is deprecated and "
1639                                   "should not be used anymore. Use "
1640                                   "\'-E nodiscard\' extended option "
1641                                   "instead!\n"));
1642                         discard = 0;
1643                         break;
1644                 case 'l':
1645                         bad_blocks_filename = realloc(bad_blocks_filename,
1646                                                       strlen(optarg) + 1);
1647                         if (!bad_blocks_filename) {
1648                                 com_err(program_name, ENOMEM, "%s",
1649                                         _("in malloc for bad_blocks_filename"));
1650                                 exit(1);
1651                         }
1652                         strcpy(bad_blocks_filename, optarg);
1653                         break;
1654                 case 'L':
1655                         volume_label = optarg;
1656                         break;
1657                 case 'm':
1658                         reserved_ratio = strtod(optarg, &tmp);
1659                         if ( *tmp || reserved_ratio > 50 ||
1660                              reserved_ratio < 0) {
1661                                 com_err(program_name, 0,
1662                                         _("invalid reserved blocks percent - %s"),
1663                                         optarg);
1664                                 exit(1);
1665                         }
1666                         break;
1667                 case 'M':
1668                         mount_dir = optarg;
1669                         break;
1670                 case 'n':
1671                         noaction++;
1672                         break;
1673                 case 'N':
1674                         num_inodes = strtoul(optarg, &tmp, 0);
1675                         if (*tmp) {
1676                                 com_err(program_name, 0,
1677                                         _("bad num inodes - %s"), optarg);
1678                                         exit(1);
1679                         }
1680                         break;
1681                 case 'o':
1682                         creator_os = optarg;
1683                         break;
1684                 case 'O':
1685                         fs_features = optarg;
1686                         break;
1687                 case 'q':
1688                         quiet = 1;
1689                         break;
1690                 case 'r':
1691                         r_opt = strtoul(optarg, &tmp, 0);
1692                         if (*tmp) {
1693                                 com_err(program_name, 0,
1694                                         _("bad revision level - %s"), optarg);
1695                                 exit(1);
1696                         }
1697                         fs_param.s_rev_level = r_opt;
1698                         break;
1699                 case 's':       /* deprecated */
1700                         s_opt = atoi(optarg);
1701                         break;
1702                 case 'S':
1703                         super_only = 1;
1704                         break;
1705                 case 't':
1706                         if (fs_type) {
1707                                 com_err(program_name, 0, "%s",
1708                                     _("The -t option may only be used once"));
1709                                 exit(1);
1710                         }
1711                         fs_type = strdup(optarg);
1712                         break;
1713                 case 'T':
1714                         if (usage_types) {
1715                                 com_err(program_name, 0, "%s",
1716                                     _("The -T option may only be used once"));
1717                                 exit(1);
1718                         }
1719                         usage_types = strdup(optarg);
1720                         break;
1721                 case 'U':
1722                         fs_uuid = optarg;
1723                         break;
1724                 case 'd':
1725                         root_dir = optarg;
1726                         break;
1727                 case 'v':
1728                         verbose = 1;
1729                         break;
1730                 case 'V':
1731                         /* Print version number and exit */
1732                         show_version_only++;
1733                         break;
1734                 default:
1735                         usage();
1736                 }
1737         }
1738         if ((optind == argc) && !show_version_only)
1739                 usage();
1740         device_name = argv[optind++];
1741
1742         if (!quiet || show_version_only)
1743                 fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION,
1744                          E2FSPROGS_DATE);
1745
1746         if (show_version_only) {
1747                 fprintf(stderr, _("\tUsing %s\n"),
1748                         error_message(EXT2_ET_BASE));
1749                 exit(0);
1750         }
1751
1752         /*
1753          * If there's no blocksize specified and there is a journal
1754          * device, use it to figure out the blocksize
1755          */
1756         if (blocksize <= 0 && journal_device) {
1757                 ext2_filsys     jfs;
1758                 io_manager      io_ptr;
1759
1760 #ifdef CONFIG_TESTIO_DEBUG
1761                 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1762                         io_ptr = test_io_manager;
1763                         test_io_backing_manager = unix_io_manager;
1764                 } else
1765 #endif
1766                         io_ptr = unix_io_manager;
1767                 retval = ext2fs_open(journal_device,
1768                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
1769                                      0, io_ptr, &jfs);
1770                 if (retval) {
1771                         com_err(program_name, retval,
1772                                 _("while trying to open journal device %s\n"),
1773                                 journal_device);
1774                         exit(1);
1775                 }
1776                 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
1777                         com_err(program_name, 0,
1778                                 _("Journal dev blocksize (%d) smaller than "
1779                                   "minimum blocksize %d\n"), jfs->blocksize,
1780                                 -blocksize);
1781                         exit(1);
1782                 }
1783                 blocksize = jfs->blocksize;
1784                 printf(_("Using journal device's blocksize: %d\n"), blocksize);
1785                 fs_param.s_log_block_size =
1786                         int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1787                 ext2fs_close(jfs);
1788         }
1789
1790         if (optind < argc) {
1791                 fs_blocks_count = parse_num_blocks2(argv[optind++],
1792                                                    fs_param.s_log_block_size);
1793                 if (!fs_blocks_count) {
1794                         com_err(program_name, 0,
1795                                 _("invalid blocks '%s' on device '%s'"),
1796                                 argv[optind - 1], device_name);
1797                         exit(1);
1798                 }
1799         }
1800         if (optind < argc)
1801                 usage();
1802
1803         profile_get_integer(profile, "options", "proceed_delay", 0, 0,
1804                             &proceed_delay);
1805
1806         /* The isatty() test is so we don't break existing scripts */
1807         flags = CREATE_FILE;
1808         if (isatty(0) && isatty(1))
1809                 flags |= CHECK_FS_EXIST;
1810         if (!quiet)
1811                 flags |= VERBOSE_CREATE;
1812         if (!check_plausibility(device_name, flags, &is_device) && !force)
1813                 proceed_question(proceed_delay);
1814
1815         check_mount(device_name, force, _("filesystem"));
1816
1817         /* Determine the size of the device (if possible) */
1818         if (noaction && fs_blocks_count) {
1819                 dev_size = fs_blocks_count;
1820                 retval = 0;
1821         } else
1822                 retval = ext2fs_get_device_size2(device_name,
1823                                                  EXT2_BLOCK_SIZE(&fs_param),
1824                                                  &dev_size);
1825
1826         if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
1827                 com_err(program_name, retval, "%s",
1828                         _("while trying to determine filesystem size"));
1829                 exit(1);
1830         }
1831         if (!fs_blocks_count) {
1832                 if (retval == EXT2_ET_UNIMPLEMENTED) {
1833                         com_err(program_name, 0, "%s",
1834                                 _("Couldn't determine device size; you "
1835                                 "must specify\nthe size of the "
1836                                 "filesystem\n"));
1837                         exit(1);
1838                 } else {
1839                         if (dev_size == 0) {
1840                                 com_err(program_name, 0, "%s",
1841                                 _("Device size reported to be zero.  "
1842                                   "Invalid partition specified, or\n\t"
1843                                   "partition table wasn't reread "
1844                                   "after running fdisk, due to\n\t"
1845                                   "a modified partition being busy "
1846                                   "and in use.  You may need to reboot\n\t"
1847                                   "to re-read your partition table.\n"
1848                                   ));
1849                                 exit(1);
1850                         }
1851                         fs_blocks_count = dev_size;
1852                         if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param))
1853                                 fs_blocks_count &= ~((blk64_t) ((sys_page_size /
1854                                              EXT2_BLOCK_SIZE(&fs_param))-1));
1855                 }
1856         } else if (!force && is_device && (fs_blocks_count > dev_size)) {
1857                 com_err(program_name, 0, "%s",
1858                         _("Filesystem larger than apparent device size."));
1859                 proceed_question(proceed_delay);
1860         }
1861
1862         if (!fs_type)
1863                 profile_get_string(profile, "devices", device_name,
1864                                    "fs_type", 0, &fs_type);
1865         if (!usage_types)
1866                 profile_get_string(profile, "devices", device_name,
1867                                    "usage_types", 0, &usage_types);
1868
1869         /*
1870          * We have the file system (or device) size, so we can now
1871          * determine the appropriate file system types so the fs can
1872          * be appropriately configured.
1873          */
1874         fs_types = parse_fs_type(fs_type, usage_types, &fs_param,
1875                                  fs_blocks_count ? fs_blocks_count : dev_size,
1876                                  argv[0]);
1877         if (!fs_types) {
1878                 fprintf(stderr, "%s", _("Failed to parse fs types list\n"));
1879                 exit(1);
1880         }
1881
1882         /* Figure out what features should be enabled */
1883
1884         tmp = NULL;
1885         if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) {
1886                 tmp = get_string_from_profile(fs_types, "base_features",
1887                       "sparse_super,filetype,resize_inode,dir_index");
1888                 edit_feature(tmp, &fs_param.s_feature_compat);
1889                 free(tmp);
1890
1891                 /* And which mount options as well */
1892                 tmp = get_string_from_profile(fs_types, "default_mntopts",
1893                                               "acl,user_xattr");
1894                 edit_mntopts(tmp, &fs_param.s_default_mount_opts);
1895                 if (tmp)
1896                         free(tmp);
1897
1898                 for (cpp = fs_types; *cpp; cpp++) {
1899                         tmp = NULL;
1900                         profile_get_string(profile, "fs_types", *cpp,
1901                                            "features", "", &tmp);
1902                         if (tmp && *tmp)
1903                                 edit_feature(tmp, &fs_param.s_feature_compat);
1904                         if (tmp)
1905                                 free(tmp);
1906                 }
1907                 tmp = get_string_from_profile(fs_types, "default_features",
1908                                               "");
1909         }
1910         /* Mask off features which aren't supported by the Hurd */
1911         if (for_hurd(creator_os)) {
1912                 fs_param.s_feature_incompat &= ~EXT2_FEATURE_INCOMPAT_FILETYPE;
1913                 fs_param.s_feature_ro_compat &=
1914                         ~(EXT4_FEATURE_RO_COMPAT_HUGE_FILE |
1915                           EXT4_FEATURE_RO_COMPAT_METADATA_CSUM);
1916         }
1917         edit_feature(fs_features ? fs_features : tmp,
1918                      &fs_param.s_feature_compat);
1919         if (tmp)
1920                 free(tmp);
1921         /*
1922          * If the user specified features incompatible with the Hurd, complain
1923          */
1924         if (for_hurd(creator_os)) {
1925                 if (fs_param.s_feature_incompat &
1926                     EXT2_FEATURE_INCOMPAT_FILETYPE) {
1927                         fprintf(stderr, "%s", _("The HURD does not support the "
1928                                                 "filetype feature.\n"));
1929                         exit(1);
1930                 }
1931                 if (fs_param.s_feature_ro_compat &
1932                     EXT4_FEATURE_RO_COMPAT_HUGE_FILE) {
1933                         fprintf(stderr, "%s", _("The HURD does not support the "
1934                                                 "huge_file feature.\n"));
1935                         exit(1);
1936                 }
1937                 if (fs_param.s_feature_ro_compat &
1938                     EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) {
1939                         fprintf(stderr, "%s", _("The HURD does not support the "
1940                                                 "metadata_csum feature.\n"));
1941                         exit(1);
1942                 }
1943         }
1944
1945         /* Get the hardware sector sizes, if available */
1946         retval = ext2fs_get_device_sectsize(device_name, &lsector_size);
1947         if (retval) {
1948                 com_err(program_name, retval, "%s",
1949                         _("while trying to determine hardware sector size"));
1950                 exit(1);
1951         }
1952         retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size);
1953         if (retval) {
1954                 com_err(program_name, retval, "%s",
1955                         _("while trying to determine physical sector size"));
1956                 exit(1);
1957         }
1958
1959         tmp = getenv("MKE2FS_DEVICE_SECTSIZE");
1960         if (tmp != NULL)
1961                 lsector_size = atoi(tmp);
1962         tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE");
1963         if (tmp != NULL)
1964                 psector_size = atoi(tmp);
1965
1966         /* Older kernels may not have physical/logical distinction */
1967         if (!psector_size)
1968                 psector_size = lsector_size;
1969
1970         if (blocksize <= 0) {
1971                 use_bsize = get_int_from_profile(fs_types, "blocksize", 4096);
1972
1973                 if (use_bsize == -1) {
1974                         use_bsize = sys_page_size;
1975                         if (is_before_linux_ver(2, 6) && use_bsize > 4096)
1976                                 use_bsize = 4096;
1977                 }
1978                 if (lsector_size && use_bsize < lsector_size)
1979                         use_bsize = lsector_size;
1980                 if ((blocksize < 0) && (use_bsize < (-blocksize)))
1981                         use_bsize = -blocksize;
1982                 blocksize = use_bsize;
1983                 fs_blocks_count /= (blocksize / 1024);
1984         } else {
1985                 if (blocksize < lsector_size) {                 /* Impossible */
1986                         com_err(program_name, EINVAL, "%s",
1987                                 _("while setting blocksize; too small "
1988                                   "for device\n"));
1989                         exit(1);
1990                 } else if ((blocksize < psector_size) &&
1991                            (psector_size <= sys_page_size)) {   /* Suboptimal */
1992                         fprintf(stderr, _("Warning: specified blocksize %d is "
1993                                 "less than device physical sectorsize %d\n"),
1994                                 blocksize, psector_size);
1995                 }
1996         }
1997
1998         fs_param.s_log_block_size =
1999                 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
2000
2001         /*
2002          * We now need to do a sanity check of fs_blocks_count for
2003          * 32-bit vs 64-bit block number support.
2004          */
2005         if ((fs_blocks_count > MAX_32_NUM) &&
2006             (fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT))
2007                 fs_param.s_feature_compat &= ~EXT2_FEATURE_COMPAT_RESIZE_INODE;
2008         if ((fs_blocks_count > MAX_32_NUM) &&
2009             !(fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT) &&
2010             get_bool_from_profile(fs_types, "auto_64-bit_support", 0)) {
2011                 fs_param.s_feature_incompat |= EXT4_FEATURE_INCOMPAT_64BIT;
2012                 fs_param.s_feature_compat &= ~EXT2_FEATURE_COMPAT_RESIZE_INODE;
2013         }
2014         if ((fs_blocks_count > MAX_32_NUM) &&
2015             !(fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT)) {
2016                 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2017                                   "too big to be expressed\n\t"
2018                                   "in 32 bits using a blocksize of %d.\n"),
2019                         program_name, fs_blocks_count, device_name,
2020                         EXT2_BLOCK_SIZE(&fs_param));
2021                 exit(1);
2022         }
2023
2024         ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2025
2026         if (fs_param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
2027                 fs_types[0] = strdup("journal");
2028                 fs_types[1] = 0;
2029         }
2030
2031         if (verbose) {
2032                 fputs(_("fs_types for mke2fs.conf resolution: "), stdout);
2033                 print_str_list(fs_types);
2034         }
2035
2036         if (r_opt == EXT2_GOOD_OLD_REV &&
2037             (fs_param.s_feature_compat || fs_param.s_feature_incompat ||
2038              fs_param.s_feature_ro_compat)) {
2039                 fprintf(stderr, "%s", _("Filesystem features not supported "
2040                                         "with revision 0 filesystems\n"));
2041                 exit(1);
2042         }
2043
2044         if (s_opt > 0) {
2045                 if (r_opt == EXT2_GOOD_OLD_REV) {
2046                         fprintf(stderr, "%s",
2047                                 _("Sparse superblocks not supported "
2048                                   "with revision 0 filesystems\n"));
2049                         exit(1);
2050                 }
2051                 fs_param.s_feature_ro_compat |=
2052                         EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
2053         } else if (s_opt == 0)
2054                 fs_param.s_feature_ro_compat &=
2055                         ~EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
2056
2057         if (journal_size != 0) {
2058                 if (r_opt == EXT2_GOOD_OLD_REV) {
2059                         fprintf(stderr, "%s", _("Journals not supported with "
2060                                                 "revision 0 filesystems\n"));
2061                         exit(1);
2062                 }
2063                 fs_param.s_feature_compat |=
2064                         EXT3_FEATURE_COMPAT_HAS_JOURNAL;
2065         }
2066
2067         /* Get reserved_ratio from profile if not specified on cmd line. */
2068         if (reserved_ratio < 0.0) {
2069                 reserved_ratio = get_double_from_profile(
2070                                         fs_types, "reserved_ratio", 5.0);
2071                 if (reserved_ratio > 50 || reserved_ratio < 0) {
2072                         com_err(program_name, 0,
2073                                 _("invalid reserved blocks percent - %lf"),
2074                                 reserved_ratio);
2075                         exit(1);
2076                 }
2077         }
2078
2079         if (fs_param.s_feature_incompat &
2080             EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
2081                 reserved_ratio = 0;
2082                 fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
2083                 fs_param.s_feature_compat = 0;
2084                 fs_param.s_feature_ro_compat = 0;
2085         }
2086
2087         /* Check the user's mkfs options for 64bit */
2088         if ((fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT) &&
2089             !(fs_param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_EXTENTS)) {
2090                 printf("%s", _("Extents MUST be enabled for a 64-bit "
2091                                "filesystem.  Pass -O extents to rectify.\n"));
2092                 exit(1);
2093         }
2094
2095         /* Set first meta blockgroup via an environment variable */
2096         /* (this is mostly for debugging purposes) */
2097         if ((fs_param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) &&
2098             ((tmp = getenv("MKE2FS_FIRST_META_BG"))))
2099                 fs_param.s_first_meta_bg = atoi(tmp);
2100         if (fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_BIGALLOC) {
2101                 if (!cluster_size)
2102                         cluster_size = get_int_from_profile(fs_types,
2103                                                             "cluster_size",
2104                                                             blocksize*16);
2105                 fs_param.s_log_cluster_size =
2106                         int_log2(cluster_size >> EXT2_MIN_CLUSTER_LOG_SIZE);
2107                 if (fs_param.s_log_cluster_size &&
2108                     fs_param.s_log_cluster_size < fs_param.s_log_block_size) {
2109                         com_err(program_name, 0, "%s",
2110                                 _("The cluster size may not be "
2111                                   "smaller than the block size.\n"));
2112                         exit(1);
2113                 }
2114         } else if (cluster_size) {
2115                 com_err(program_name, 0, "%s",
2116                         _("specifying a cluster size requires the "
2117                           "bigalloc feature"));
2118                 exit(1);
2119         } else
2120                 fs_param.s_log_cluster_size = fs_param.s_log_block_size;
2121
2122         if (inode_ratio == 0) {
2123                 inode_ratio = get_int_from_profile(fs_types, "inode_ratio",
2124                                                    8192);
2125                 if (inode_ratio < blocksize)
2126                         inode_ratio = blocksize;
2127                 if (inode_ratio < EXT2_CLUSTER_SIZE(&fs_param))
2128                         inode_ratio = EXT2_CLUSTER_SIZE(&fs_param);
2129         }
2130
2131 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
2132         retval = get_device_geometry(device_name, &fs_param, psector_size);
2133         if (retval < 0) {
2134                 fprintf(stderr,
2135                         _("warning: Unable to get device geometry for %s\n"),
2136                         device_name);
2137         } else if (retval) {
2138                 printf(_("%s alignment is offset by %lu bytes.\n"),
2139                        device_name, retval);
2140                 printf(_("This may result in very poor performance, "
2141                           "(re)-partitioning suggested.\n"));
2142         }
2143 #endif
2144
2145         num_backups = get_int_from_profile(fs_types, "num_backup_sb", 2);
2146
2147         blocksize = EXT2_BLOCK_SIZE(&fs_param);
2148
2149         /*
2150          * Initialize s_desc_size so that the parse_extended_opts()
2151          * can correctly handle "-E resize=NNN" if the 64-bit option
2152          * is set.
2153          */
2154         if (fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT)
2155                 fs_param.s_desc_size = EXT2_MIN_DESC_SIZE_64BIT;
2156
2157         /* This check should happen beyond the last assignment to blocksize */
2158         if (blocksize > sys_page_size) {
2159                 if (!force) {
2160                         com_err(program_name, 0,
2161                                 _("%d-byte blocks too big for system (max %d)"),
2162                                 blocksize, sys_page_size);
2163                         proceed_question(proceed_delay);
2164                 }
2165                 fprintf(stderr, _("Warning: %d-byte blocks too big for system "
2166                                   "(max %d), forced to continue\n"),
2167                         blocksize, sys_page_size);
2168         }
2169
2170         lazy_itable_init = 0;
2171         if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0)
2172                 lazy_itable_init = 1;
2173
2174         lazy_itable_init = get_bool_from_profile(fs_types,
2175                                                  "lazy_itable_init",
2176                                                  lazy_itable_init);
2177         discard = get_bool_from_profile(fs_types, "discard" , discard);
2178         journal_flags |= get_bool_from_profile(fs_types,
2179                                                "lazy_journal_init", 0) ?
2180                                                EXT2_MKJOURNAL_LAZYINIT : 0;
2181         journal_flags |= EXT2_MKJOURNAL_NO_MNT_CHECK;
2182
2183         if (!journal_location_string)
2184                 journal_location_string = get_string_from_profile(fs_types,
2185                                                 "journal_location", "");
2186         if ((journal_location == ~0ULL) && journal_location_string &&
2187             *journal_location_string)
2188                 journal_location = parse_num_blocks2(journal_location_string,
2189                                                 fs_param.s_log_block_size);
2190         free(journal_location_string);
2191
2192         packed_meta_blocks = get_bool_from_profile(fs_types,
2193                                                    "packed_meta_blocks", 0);
2194         if (packed_meta_blocks)
2195                 journal_location = 0;
2196
2197         /* Get options from profile */
2198         for (cpp = fs_types; *cpp; cpp++) {
2199                 tmp = NULL;
2200                 profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp);
2201                         if (tmp && *tmp)
2202                                 parse_extended_opts(&fs_param, tmp);
2203                         free(tmp);
2204         }
2205
2206         if (extended_opts)
2207                 parse_extended_opts(&fs_param, extended_opts);
2208
2209         /* Don't allow user to set both metadata_csum and uninit_bg bits. */
2210         if ((fs_param.s_feature_ro_compat &
2211              EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) &&
2212             (fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_GDT_CSUM))
2213                 fs_param.s_feature_ro_compat &=
2214                                 ~EXT4_FEATURE_RO_COMPAT_GDT_CSUM;
2215
2216         /* Can't support bigalloc feature without extents feature */
2217         if ((fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_BIGALLOC) &&
2218             !(fs_param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_EXTENTS)) {
2219                 com_err(program_name, 0, "%s",
2220                         _("Can't support bigalloc feature without "
2221                           "extents feature"));
2222                 exit(1);
2223         }
2224
2225         if ((fs_param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) &&
2226             (fs_param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE)) {
2227                 fprintf(stderr, "%s", _("The resize_inode and meta_bg "
2228                                         "features are not compatible.\n"
2229                                         "They can not be both enabled "
2230                                         "simultaneously.\n"));
2231                 exit(1);
2232         }
2233
2234         if (!quiet &&
2235             (fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_BIGALLOC))
2236                 fprintf(stderr, "%s", _("\nWarning: the bigalloc feature is "
2237                                   "still under development\n"
2238                                   "See https://ext4.wiki.kernel.org/"
2239                                   "index.php/Bigalloc for more information\n\n"));
2240
2241         /*
2242          * Since sparse_super is the default, we would only have a problem
2243          * here if it was explicitly disabled.
2244          */
2245         if ((fs_param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE) &&
2246             !(fs_param.s_feature_ro_compat&EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)) {
2247                 com_err(program_name, 0, "%s",
2248                         _("reserved online resize blocks not supported "
2249                           "on non-sparse filesystem"));
2250                 exit(1);
2251         }
2252
2253         if (fs_param.s_blocks_per_group) {
2254                 if (fs_param.s_blocks_per_group < 256 ||
2255                     fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) {
2256                         com_err(program_name, 0, "%s",
2257                                 _("blocks per group count out of range"));
2258                         exit(1);
2259                 }
2260         }
2261
2262         /*
2263          * If the bigalloc feature is enabled, then the -g option will
2264          * specify the number of clusters per group.
2265          */
2266         if (fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_BIGALLOC) {
2267                 fs_param.s_clusters_per_group = fs_param.s_blocks_per_group;
2268                 fs_param.s_blocks_per_group = 0;
2269         }
2270
2271         if (inode_size == 0)
2272                 inode_size = get_int_from_profile(fs_types, "inode_size", 0);
2273         if (!flex_bg_size && (fs_param.s_feature_incompat &
2274                               EXT4_FEATURE_INCOMPAT_FLEX_BG))
2275                 flex_bg_size = get_int_from_profile(fs_types,
2276                                                     "flex_bg_size", 16);
2277         if (flex_bg_size) {
2278                 if (!(fs_param.s_feature_incompat &
2279                       EXT4_FEATURE_INCOMPAT_FLEX_BG)) {
2280                         com_err(program_name, 0, "%s",
2281                                 _("Flex_bg feature not enabled, so "
2282                                   "flex_bg size may not be specified"));
2283                         exit(1);
2284                 }
2285                 fs_param.s_log_groups_per_flex = int_log2(flex_bg_size);
2286         }
2287
2288         if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) {
2289                 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
2290                     inode_size > EXT2_BLOCK_SIZE(&fs_param) ||
2291                     inode_size & (inode_size - 1)) {
2292                         com_err(program_name, 0,
2293                                 _("invalid inode size %d (min %d/max %d)"),
2294                                 inode_size, EXT2_GOOD_OLD_INODE_SIZE,
2295                                 blocksize);
2296                         exit(1);
2297                 }
2298                 fs_param.s_inode_size = inode_size;
2299         }
2300
2301         /*
2302          * If inode size is 128 and inline data is enabled, we need
2303          * to notify users that inline data will never be useful.
2304          */
2305         if ((fs_param.s_feature_incompat &
2306              EXT4_FEATURE_INCOMPAT_INLINE_DATA) &&
2307             fs_param.s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2308                 com_err(program_name, 0,
2309                         _("inode size is %d, inline data is useless"),
2310                         fs_param.s_inode_size);
2311                 exit(1);
2312         }
2313
2314         /* Make sure number of inodes specified will fit in 32 bits */
2315         if (num_inodes == 0) {
2316                 unsigned long long n;
2317                 n = ext2fs_blocks_count(&fs_param) * blocksize / inode_ratio;
2318                 if (n > MAX_32_NUM) {
2319                         if (fs_param.s_feature_incompat &
2320                             EXT4_FEATURE_INCOMPAT_64BIT)
2321                                 num_inodes = MAX_32_NUM;
2322                         else {
2323                                 com_err(program_name, 0,
2324                                         _("too many inodes (%llu), raise "
2325                                           "inode ratio?"), n);
2326                                 exit(1);
2327                         }
2328                 }
2329         } else if (num_inodes > MAX_32_NUM) {
2330                 com_err(program_name, 0,
2331                         _("too many inodes (%llu), specify < 2^32 inodes"),
2332                           num_inodes);
2333                 exit(1);
2334         }
2335         /*
2336          * Calculate number of inodes based on the inode ratio
2337          */
2338         fs_param.s_inodes_count = num_inodes ? num_inodes :
2339                 (ext2fs_blocks_count(&fs_param) * blocksize) / inode_ratio;
2340
2341         if ((((unsigned long long)fs_param.s_inodes_count) *
2342              (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >=
2343             ((ext2fs_blocks_count(&fs_param)) *
2344              EXT2_BLOCK_SIZE(&fs_param))) {
2345                 com_err(program_name, 0, _("inode_size (%u) * inodes_count "
2346                                           "(%u) too big for a\n\t"
2347                                           "filesystem with %llu blocks, "
2348                                           "specify higher inode_ratio (-i)\n\t"
2349                                           "or lower inode count (-N).\n"),
2350                         inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE,
2351                         fs_param.s_inodes_count,
2352                         (unsigned long long) ext2fs_blocks_count(&fs_param));
2353                 exit(1);
2354         }
2355
2356         /*
2357          * Calculate number of blocks to reserve
2358          */
2359         ext2fs_r_blocks_count_set(&fs_param, reserved_ratio *
2360                                   ext2fs_blocks_count(&fs_param) / 100.0);
2361
2362         if (fs_param.s_feature_compat & EXT4_FEATURE_COMPAT_SPARSE_SUPER2) {
2363                 if (num_backups >= 1)
2364                         fs_param.s_backup_bgs[0] = 1;
2365                 if (num_backups >= 2)
2366                         fs_param.s_backup_bgs[1] = ~0;
2367         }
2368
2369         free(fs_type);
2370         free(usage_types);
2371 }
2372
2373 static int should_do_undo(const char *name)
2374 {
2375         errcode_t retval;
2376         io_channel channel;
2377         __u16   s_magic;
2378         struct ext2_super_block super;
2379         io_manager manager = unix_io_manager;
2380         int csum_flag, force_undo;
2381
2382         csum_flag = EXT2_HAS_RO_COMPAT_FEATURE(&fs_param,
2383                                 EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
2384                                 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM);
2385         force_undo = get_int_from_profile(fs_types, "force_undo", 0);
2386         if (!force_undo && (!csum_flag || !lazy_itable_init))
2387                 return 0;
2388
2389         retval = manager->open(name, IO_FLAG_EXCLUSIVE,  &channel);
2390         if (retval) {
2391                 /*
2392                  * We don't handle error cases instead we
2393                  * declare that the file system doesn't exist
2394                  * and let the rest of mke2fs take care of
2395                  * error
2396                  */
2397                 retval = 0;
2398                 goto open_err_out;
2399         }
2400
2401         io_channel_set_blksize(channel, SUPERBLOCK_OFFSET);
2402         retval = io_channel_read_blk64(channel, 1, -SUPERBLOCK_SIZE, &super);
2403         if (retval) {
2404                 retval = 0;
2405                 goto err_out;
2406         }
2407
2408 #if defined(WORDS_BIGENDIAN)
2409         s_magic = ext2fs_swab16(super.s_magic);
2410 #else
2411         s_magic = super.s_magic;
2412 #endif
2413
2414         if (s_magic == EXT2_SUPER_MAGIC)
2415                 retval = 1;
2416
2417 err_out:
2418         io_channel_close(channel);
2419
2420 open_err_out:
2421
2422         return retval;
2423 }
2424
2425 static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr)
2426 {
2427         errcode_t retval = ENOMEM;
2428         char *tdb_dir = NULL, *tdb_file = NULL;
2429         char *dev_name, *tmp_name;
2430         int free_tdb_dir = 0;
2431
2432         /*
2433          * Configuration via a conf file would be
2434          * nice
2435          */
2436         tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
2437         if (!tdb_dir) {
2438                 profile_get_string(profile, "defaults",
2439                                    "undo_dir", 0, "/var/lib/e2fsprogs",
2440                                    &tdb_dir);
2441                 free_tdb_dir = 1;
2442         }
2443
2444         if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
2445             access(tdb_dir, W_OK)) {
2446                 if (free_tdb_dir)
2447                         free(tdb_dir);
2448                 return 0;
2449         }
2450
2451         tmp_name = strdup(name);
2452         if (!tmp_name)
2453                 goto errout;
2454         dev_name = basename(tmp_name);
2455         tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
2456         if (!tdb_file) {
2457                 free(tmp_name);
2458                 goto errout;
2459         }
2460         sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, dev_name);
2461         free(tmp_name);
2462
2463         if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
2464                 retval = errno;
2465                 goto errout;
2466         }
2467
2468         set_undo_io_backing_manager(*io_ptr);
2469         *io_ptr = undo_io_manager;
2470         retval = set_undo_io_backup_file(tdb_file);
2471         if (retval)
2472                 goto errout;
2473         printf(_("Overwriting existing filesystem; this can be undone "
2474                  "using the command:\n"
2475                  "    e2undo %s %s\n\n"), tdb_file, name);
2476
2477         if (free_tdb_dir)
2478                 free(tdb_dir);
2479         free(tdb_file);
2480         return 0;
2481
2482 errout:
2483         if (free_tdb_dir)
2484                 free(tdb_dir);
2485         free(tdb_file);
2486         com_err(program_name, retval, "%s",
2487                 _("while trying to setup undo file\n"));
2488         return retval;
2489 }
2490
2491 static int mke2fs_discard_device(ext2_filsys fs)
2492 {
2493         struct ext2fs_numeric_progress_struct progress;
2494         blk64_t blocks = ext2fs_blocks_count(fs->super);
2495         blk64_t count = DISCARD_STEP_MB;
2496         blk64_t cur;
2497         int retval = 0;
2498
2499         /*
2500          * Let's try if discard really works on the device, so
2501          * we do not print numeric progress resulting in failure
2502          * afterwards.
2503          */
2504         retval = io_channel_discard(fs->io, 0, fs->blocksize);
2505         if (retval)
2506                 return retval;
2507         cur = fs->blocksize;
2508
2509         count *= (1024 * 1024);
2510         count /= fs->blocksize;
2511
2512         ext2fs_numeric_progress_init(fs, &progress,
2513                                      _("Discarding device blocks: "),
2514                                      blocks);
2515         while (cur < blocks) {
2516                 ext2fs_numeric_progress_update(fs, &progress, cur);
2517
2518                 if (cur + count > blocks)
2519                         count = blocks - cur;
2520
2521                 retval = io_channel_discard(fs->io, cur, count);
2522                 if (retval)
2523                         break;
2524                 cur += count;
2525         }
2526
2527         if (retval) {
2528                 ext2fs_numeric_progress_close(fs, &progress,
2529                                       _("failed - "));
2530                 if (!quiet)
2531                         printf("%s\n",error_message(retval));
2532         } else
2533                 ext2fs_numeric_progress_close(fs, &progress,
2534                                       _("done                            \n"));
2535
2536         return retval;
2537 }
2538
2539 static void fix_cluster_bg_counts(ext2_filsys fs)
2540 {
2541         blk64_t         block, num_blocks, last_block, next;
2542         blk64_t         tot_free = 0;
2543         errcode_t       retval;
2544         dgrp_t          group = 0;
2545         int             grp_free = 0;
2546
2547         num_blocks = ext2fs_blocks_count(fs->super);
2548         last_block = ext2fs_group_last_block2(fs, group);
2549         block = fs->super->s_first_data_block;
2550         while (block < num_blocks) {
2551                 retval = ext2fs_find_first_zero_block_bitmap2(fs->block_map,
2552                                                 block, last_block, &next);
2553                 if (retval == 0)
2554                         block = next;
2555                 else {
2556                         block = last_block + 1;
2557                         goto next_bg;
2558                 }
2559
2560                 retval = ext2fs_find_first_set_block_bitmap2(fs->block_map,
2561                                                 block, last_block, &next);
2562                 if (retval)
2563                         next = last_block + 1;
2564                 grp_free += EXT2FS_NUM_B2C(fs, next - block);
2565                 tot_free += next - block;
2566                 block = next;
2567
2568                 if (block > last_block) {
2569                 next_bg:
2570                         ext2fs_bg_free_blocks_count_set(fs, group, grp_free);
2571                         ext2fs_group_desc_csum_set(fs, group);
2572                         grp_free = 0;
2573                         group++;
2574                         last_block = ext2fs_group_last_block2(fs, group);
2575                 }
2576         }
2577         ext2fs_free_blocks_count_set(fs->super, tot_free);
2578 }
2579
2580 static int create_quota_inodes(ext2_filsys fs)
2581 {
2582         quota_ctx_t qctx;
2583
2584         quota_init_context(&qctx, fs, -1);
2585         quota_compute_usage(qctx);
2586         quota_write_inode(qctx, quotatype);
2587         quota_release_context(&qctx);
2588
2589         return 0;
2590 }
2591
2592 int main (int argc, char *argv[])
2593 {
2594         errcode_t       retval = 0;
2595         ext2_filsys     fs;
2596         badblocks_list  bb_list = 0;
2597         unsigned int    journal_blocks = 0;
2598         unsigned int    i, checkinterval;
2599         int             max_mnt_count;
2600         int             val, hash_alg;
2601         int             flags;
2602         int             old_bitmaps;
2603         io_manager      io_ptr;
2604         char            opt_string[40];
2605         char            *hash_alg_str;
2606         int             itable_zeroed = 0;
2607
2608 #ifdef ENABLE_NLS
2609         setlocale(LC_MESSAGES, "");
2610         setlocale(LC_CTYPE, "");
2611         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
2612         textdomain(NLS_CAT_NAME);
2613         set_com_err_gettext(gettext);
2614 #endif
2615         PRS(argc, argv);
2616
2617 #ifdef CONFIG_TESTIO_DEBUG
2618         if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
2619                 io_ptr = test_io_manager;
2620                 test_io_backing_manager = unix_io_manager;
2621         } else
2622 #endif
2623                 io_ptr = unix_io_manager;
2624
2625         if (should_do_undo(device_name)) {
2626                 retval = mke2fs_setup_tdb(device_name, &io_ptr);
2627                 if (retval)
2628                         exit(1);
2629         }
2630
2631         /*
2632          * Initialize the superblock....
2633          */
2634         flags = EXT2_FLAG_EXCLUSIVE;
2635         if (direct_io)
2636                 flags |= EXT2_FLAG_DIRECT_IO;
2637         profile_get_boolean(profile, "options", "old_bitmaps", 0, 0,
2638                             &old_bitmaps);
2639         if (!old_bitmaps)
2640                 flags |= EXT2_FLAG_64BITS;
2641         /*
2642          * By default, we print how many inode tables or block groups
2643          * or whatever we've written so far.  The quiet flag disables
2644          * this, along with a lot of other output.
2645          */
2646         if (!quiet)
2647                 flags |= EXT2_FLAG_PRINT_PROGRESS;
2648         retval = ext2fs_initialize(device_name, flags, &fs_param, io_ptr, &fs);
2649         if (retval) {
2650                 com_err(device_name, retval, "%s",
2651                         _("while setting up superblock"));
2652                 exit(1);
2653         }
2654         fs->progress_ops = &ext2fs_numeric_progress_ops;
2655
2656         /* Check the user's mkfs options for metadata checksumming */
2657         if (!quiet &&
2658             EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
2659                                        EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) {
2660                 if (!EXT2_HAS_INCOMPAT_FEATURE(fs->super,
2661                                 EXT3_FEATURE_INCOMPAT_EXTENTS))
2662                         printf("%s",
2663                                _("Extents are not enabled.  The file extent "
2664                                  "tree can be checksummed, whereas block maps "
2665                                  "cannot.  Not enabling extents reduces the "
2666                                  "coverage of metadata checksumming.  "
2667                                  "Pass -O extents to rectify.\n"));
2668                 if (!EXT2_HAS_INCOMPAT_FEATURE(fs->super,
2669                                 EXT4_FEATURE_INCOMPAT_64BIT))
2670                         printf("%s",
2671                                _("64-bit filesystem support is not enabled.  "
2672                                  "The larger fields afforded by this feature "
2673                                  "enable full-strength checksumming.  "
2674                                  "Pass -O 64bit to rectify.\n"));
2675         }
2676
2677         /* Calculate journal blocks */
2678         if (!journal_device && ((journal_size) ||
2679                 (fs_param.s_feature_compat &
2680                  EXT3_FEATURE_COMPAT_HAS_JOURNAL)))
2681                 journal_blocks = figure_journal_size(journal_size, fs);
2682
2683         /* Can't undo discard ... */
2684         if (!noaction && discard && dev_size && (io_ptr != undo_io_manager)) {
2685                 retval = mke2fs_discard_device(fs);
2686                 if (!retval && io_channel_discard_zeroes_data(fs->io)) {
2687                         if (verbose)
2688                                 printf("%s",
2689                                        _("Discard succeeded and will return "
2690                                          "0s - skipping inode table wipe\n"));
2691                         lazy_itable_init = 1;
2692                         itable_zeroed = 1;
2693                         zero_hugefile = 0;
2694                 }
2695         }
2696
2697         sprintf(opt_string, "tdb_data_size=%d", fs->blocksize <= 4096 ?
2698                 32768 : fs->blocksize * 8);
2699         io_channel_set_options(fs->io, opt_string);
2700         if (offset) {
2701                 sprintf(opt_string, "offset=%llu", offset);
2702                 io_channel_set_options(fs->io, opt_string);
2703         }
2704
2705         if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS)
2706                 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
2707
2708         if ((fs_param.s_feature_incompat &
2709              (EXT3_FEATURE_INCOMPAT_EXTENTS|EXT4_FEATURE_INCOMPAT_FLEX_BG)) ||
2710             (fs_param.s_feature_ro_compat &
2711              (EXT4_FEATURE_RO_COMPAT_HUGE_FILE|EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
2712               EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
2713               EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|
2714               EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE)))
2715                 fs->super->s_kbytes_written = 1;
2716
2717         /*
2718          * Wipe out the old on-disk superblock
2719          */
2720         if (!noaction)
2721                 zap_sector(fs, 2, 6);
2722
2723         /*
2724          * Parse or generate a UUID for the filesystem
2725          */
2726         if (fs_uuid) {
2727                 if (uuid_parse(fs_uuid, fs->super->s_uuid) !=0) {
2728                         com_err(device_name, 0, "could not parse UUID: %s\n",
2729                                 fs_uuid);
2730                         exit(1);
2731                 }
2732         } else
2733                 uuid_generate(fs->super->s_uuid);
2734         ext2fs_init_csum_seed(fs);
2735
2736         /*
2737          * Initialize the directory index variables
2738          */
2739         hash_alg_str = get_string_from_profile(fs_types, "hash_alg",
2740                                                "half_md4");
2741         hash_alg = e2p_string2hash(hash_alg_str);
2742         free(hash_alg_str);
2743         fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg :
2744                 EXT2_HASH_HALF_MD4;
2745         uuid_generate((unsigned char *) fs->super->s_hash_seed);
2746
2747         /*
2748          * Periodic checks can be enabled/disabled via config file.
2749          * Note we override the kernel include file's idea of what the default
2750          * check interval (never) should be.  It's a good idea to check at
2751          * least *occasionally*, specially since servers will never rarely get
2752          * to reboot, since Linux is so robust these days.  :-)
2753          *
2754          * 180 days (six months) seems like a good value.
2755          */
2756 #ifdef EXT2_DFL_CHECKINTERVAL
2757 #undef EXT2_DFL_CHECKINTERVAL
2758 #endif
2759 #define EXT2_DFL_CHECKINTERVAL (86400L * 180L)
2760
2761         if (get_bool_from_profile(fs_types, "enable_periodic_fsck", 0)) {
2762                 fs->super->s_checkinterval = EXT2_DFL_CHECKINTERVAL;
2763                 fs->super->s_max_mnt_count = EXT2_DFL_MAX_MNT_COUNT;
2764                 /*
2765                  * Add "jitter" to the superblock's check interval so that we
2766                  * don't check all the filesystems at the same time.  We use a
2767                  * kludgy hack of using the UUID to derive a random jitter value
2768                  */
2769                 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++)
2770                         val += fs->super->s_uuid[i];
2771                 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
2772         } else
2773                 fs->super->s_max_mnt_count = -1;
2774
2775         /*
2776          * Override the creator OS, if applicable
2777          */
2778         if (creator_os && !set_os(fs->super, creator_os)) {
2779                 com_err (program_name, 0, _("unknown os - %s"), creator_os);
2780                 exit(1);
2781         }
2782
2783         /*
2784          * For the Hurd, we will turn off filetype since it doesn't
2785          * support it.
2786          */
2787         if (fs->super->s_creator_os == EXT2_OS_HURD)
2788                 fs->super->s_feature_incompat &=
2789                         ~EXT2_FEATURE_INCOMPAT_FILETYPE;
2790
2791         /*
2792          * Set the volume label...
2793          */
2794         if (volume_label) {
2795                 memset(fs->super->s_volume_name, 0,
2796                        sizeof(fs->super->s_volume_name));
2797                 strncpy(fs->super->s_volume_name, volume_label,
2798                         sizeof(fs->super->s_volume_name));
2799         }
2800
2801         /*
2802          * Set the last mount directory
2803          */
2804         if (mount_dir) {
2805                 memset(fs->super->s_last_mounted, 0,
2806                        sizeof(fs->super->s_last_mounted));
2807                 strncpy(fs->super->s_last_mounted, mount_dir,
2808                         sizeof(fs->super->s_last_mounted));
2809         }
2810
2811         if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
2812                                        EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
2813                 fs->super->s_checksum_type = EXT2_CRC32C_CHKSUM;
2814
2815         if (!quiet || noaction)
2816                 show_stats(fs);
2817
2818         if (noaction)
2819                 exit(0);
2820
2821         if (fs->super->s_feature_incompat &
2822             EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
2823                 create_journal_dev(fs);
2824                 exit(ext2fs_close(fs) ? 1 : 0);
2825         }
2826
2827         if (bad_blocks_filename)
2828                 read_bb_file(fs, &bb_list, bad_blocks_filename);
2829         if (cflag)
2830                 test_disk(fs, &bb_list);
2831         handle_bad_blocks(fs, bb_list);
2832
2833         fs->stride = fs_stride = fs->super->s_raid_stride;
2834         if (!quiet)
2835                 printf("%s", _("Allocating group tables: "));
2836         if ((fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_FLEX_BG) &&
2837             packed_meta_blocks)
2838                 retval = packed_allocate_tables(fs);
2839         else
2840                 retval = ext2fs_allocate_tables(fs);
2841         if (retval) {
2842                 com_err(program_name, retval, "%s",
2843                         _("while trying to allocate filesystem tables"));
2844                 exit(1);
2845         }
2846         if (!quiet)
2847                 printf("%s", _("done                            \n"));
2848
2849         retval = ext2fs_convert_subcluster_bitmap(fs, &fs->block_map);
2850         if (retval) {
2851                 com_err(program_name, retval, "%s",
2852                         _("\n\twhile converting subcluster bitmap"));
2853                 exit(1);
2854         }
2855
2856         if (super_only) {
2857                 fs->super->s_state |= EXT2_ERROR_FS;
2858                 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
2859                 /*
2860                  * The command "mke2fs -S" is used to recover
2861                  * corrupted file systems, so do not mark any of the
2862                  * inodes as unused; we want e2fsck to consider all
2863                  * inodes as potentially containing recoverable data.
2864                  */
2865                 if (ext2fs_has_group_desc_csum(fs)) {
2866                         for (i = 0; i < fs->group_desc_count; i++)
2867                                 ext2fs_bg_itable_unused_set(fs, i, 0);
2868                 }
2869         } else {
2870                 /* rsv must be a power of two (64kB is MD RAID sb alignment) */
2871                 blk64_t rsv = 65536 / fs->blocksize;
2872                 blk64_t blocks = ext2fs_blocks_count(fs->super);
2873                 blk64_t start;
2874                 blk64_t ret_blk;
2875
2876 #ifdef ZAP_BOOTBLOCK
2877                 zap_sector(fs, 0, 2);
2878 #endif
2879
2880                 /*
2881                  * Wipe out any old MD RAID (or other) metadata at the end
2882                  * of the device.  This will also verify that the device is
2883                  * as large as we think.  Be careful with very small devices.
2884                  */
2885                 start = (blocks & ~(rsv - 1));
2886                 if (start > rsv)
2887                         start -= rsv;
2888                 if (start > 0)
2889                         retval = ext2fs_zero_blocks2(fs, start, blocks - start,
2890                                                     &ret_blk, NULL);
2891
2892                 if (retval) {
2893                         com_err(program_name, retval,
2894                                 _("while zeroing block %llu at end of filesystem"),
2895                                 ret_blk);
2896                 }
2897                 write_inode_tables(fs, lazy_itable_init, itable_zeroed);
2898                 create_root_dir(fs);
2899                 create_lost_and_found(fs);
2900                 reserve_inodes(fs);
2901                 create_bad_block_inode(fs, bb_list);
2902                 if (fs->super->s_feature_compat &
2903                     EXT2_FEATURE_COMPAT_RESIZE_INODE) {
2904                         retval = ext2fs_create_resize_inode(fs);
2905                         if (retval) {
2906                                 com_err("ext2fs_create_resize_inode", retval,
2907                                         "%s",
2908                                 _("while reserving blocks for online resize"));
2909                                 exit(1);
2910                         }
2911                 }
2912         }
2913
2914         if (journal_device) {
2915                 ext2_filsys     jfs;
2916
2917                 if (!check_plausibility(journal_device, CHECK_BLOCK_DEV,
2918                                         NULL) && !force)
2919                         proceed_question(proceed_delay);
2920                 check_mount(journal_device, force, _("journal"));
2921
2922                 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
2923                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
2924                                      fs->blocksize, unix_io_manager, &jfs);
2925                 if (retval) {
2926                         com_err(program_name, retval,
2927                                 _("while trying to open journal device %s\n"),
2928                                 journal_device);
2929                         exit(1);
2930                 }
2931                 if (!quiet) {
2932                         printf(_("Adding journal to device %s: "),
2933                                journal_device);
2934                         fflush(stdout);
2935                 }
2936                 retval = ext2fs_add_journal_device(fs, jfs);
2937                 if(retval) {
2938                         com_err (program_name, retval,
2939                                  _("\n\twhile trying to add journal to device %s"),
2940                                  journal_device);
2941                         exit(1);
2942                 }
2943                 if (!quiet)
2944                         printf("%s", _("done\n"));
2945                 ext2fs_close(jfs);
2946                 free(journal_device);
2947         } else if ((journal_size) ||
2948                    (fs_param.s_feature_compat &
2949                     EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
2950                 if (super_only) {
2951                         printf("%s", _("Skipping journal creation in super-only mode\n"));
2952                         fs->super->s_journal_inum = EXT2_JOURNAL_INO;
2953                         goto no_journal;
2954                 }
2955
2956                 if (!journal_blocks) {
2957                         fs->super->s_feature_compat &=
2958                                 ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
2959                         goto no_journal;
2960                 }
2961                 if (!quiet) {
2962                         printf(_("Creating journal (%u blocks): "),
2963                                journal_blocks);
2964                         fflush(stdout);
2965                 }
2966                 retval = ext2fs_add_journal_inode2(fs, journal_blocks,
2967                                                    journal_location,
2968                                                    journal_flags);
2969                 if (retval) {
2970                         com_err(program_name, retval, "%s",
2971                                 _("\n\twhile trying to create journal"));
2972                         exit(1);
2973                 }
2974                 if (!quiet)
2975                         printf("%s", _("done\n"));
2976         }
2977 no_journal:
2978         if (!super_only &&
2979             fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_MMP) {
2980                 retval = ext2fs_mmp_init(fs);
2981                 if (retval) {
2982                         fprintf(stderr, "%s",
2983                                 _("\nError while enabling multiple "
2984                                   "mount protection feature."));
2985                         exit(1);
2986                 }
2987                 if (!quiet)
2988                         printf(_("Multiple mount protection is enabled "
2989                                  "with update interval %d seconds.\n"),
2990                                fs->super->s_mmp_update_interval);
2991         }
2992
2993         if (EXT2_HAS_RO_COMPAT_FEATURE(&fs_param,
2994                                        EXT4_FEATURE_RO_COMPAT_BIGALLOC))
2995                 fix_cluster_bg_counts(fs);
2996         if (EXT2_HAS_RO_COMPAT_FEATURE(&fs_param,
2997                                        EXT4_FEATURE_RO_COMPAT_QUOTA))
2998                 create_quota_inodes(fs);
2999
3000         retval = mk_hugefiles(fs);
3001         if (retval)
3002                 com_err(program_name, retval, "while creating huge files");
3003         /* Copy files from the specified directory */
3004         if (root_dir) {
3005                 if (!quiet)
3006                         printf("%s", _("Copying files into the device: "));
3007
3008                 retval = populate_fs(fs, EXT2_ROOT_INO, root_dir,
3009                                      EXT2_ROOT_INO);
3010                 if (retval) {
3011                         com_err(program_name, retval, "%s",
3012                                 _("\nError while populating file system\n"));
3013                         exit(1);
3014                 } else if (!quiet)
3015                         printf("%s", _("done\n"));
3016         }
3017
3018         if (!quiet)
3019                 printf("%s", _("Writing superblocks and "
3020                        "filesystem accounting information: "));
3021         checkinterval = fs->super->s_checkinterval;
3022         max_mnt_count = fs->super->s_max_mnt_count;
3023         retval = ext2fs_close(fs);
3024         if (retval) {
3025                 fprintf(stderr, "%s",
3026                         _("\nWarning, had trouble writing out superblocks."));
3027         } else if (!quiet) {
3028                 printf("%s", _("done\n\n"));
3029                 if (!getenv("MKE2FS_SKIP_CHECK_MSG"))
3030                         print_check_message(max_mnt_count, checkinterval);
3031         }
3032
3033         remove_error_table(&et_ext2_error_table);
3034         remove_error_table(&et_prof_error_table);
3035         profile_release(profile);
3036         for (i=0; fs_types[i]; i++)
3037                 free(fs_types[i]);
3038         free(fs_types);
3039         return retval;
3040 }