misc/mke2fs.c

   1 /*
   2  * mke2fs.c - Make a ext2fs filesystem.
   3  *
   4  * Copyright (C) 1994, 1995, 1996, 1997 Theodore Ts'o.
   5  *
   6  * %Begin-Header%
   7  * This file may be redistributed under the terms of the GNU Public
   8  * License.
   9  * %End-Header%
  10  */
  11
  12 /* Usage: mke2fs [options] device
  13  *
  14  * The device may be a block device or a image of one, but this isn't
  15  * enforced (but it's not much fun on a character device :-).
  16  */
  17
  18 #include <stdio.h>
  19 #include <string.h>
  20 #include <fcntl.h>
  21 #include <ctype.h>
  22 #include <time.h>
  23 #ifdef linux
  24 #include <sys/utsname.h>
  25 #endif
  26 #ifdef HAVE_GETOPT_H
  27 #include <getopt.h>
  28 #else
  29 extern char *optarg;
  30 extern int optind;
  31 #endif
  32 #ifdef HAVE_UNISTD_H
  33 #include <unistd.h>
  34 #endif
  35 #ifdef HAVE_STDLIB_H
  36 #include <stdlib.h>
  37 #endif
  38 #ifdef HAVE_ERRNO_H
  39 #include <errno.h>
  40 #endif
  41 #ifdef HAVE_MNTENT_H
  42 #include <mntent.h>
  43 #endif
  44 #include <sys/ioctl.h>
  45 #include <sys/types.h>
  46
  47 #include <linux/ext2_fs.h>
  48
  49 #include "et/com_err.h"
  50 #include "uuid/uuid.h"
  51 #include "e2p/e2p.h"
  52 #include "ext2fs/ext2fs.h"
  53 #include "util.h"
  54 #include "../version.h"
  55 #include "nls-enable.h"
  56
  57 #define STRIDE_LENGTH 8
  58
  59 #ifndef __sparc__
  60 #define ZAP_BOOTBLOCK
  61 #endif
  62
  63 extern int isatty(int);
  64 extern FILE *fpopen(const char *cmd, const char *mode);
  65
  66 const char * program_name = "mke2fs";
  67 const char * device_name /* = NULL */;
  68
  69 /* Command line options */
  70 int     cflag /* = 0 */ ;
  71 int     verbose /* = 0 */ ;
  72 int     quiet /* = 0 */ ;
  73 int     super_only /* = 0 */ ;
  74 int     force /* = 0 */ ;
  75 int     noaction /* = 0 */ ;
  76 int     journal_size /* = 0 */ ;
  77 int     journal_flags /* = 0 */ ;
  78 char    *bad_blocks_filename /* = 0 */ ;
  79 __u32   fs_stride /* = 0 */ ;
  80
  81 struct ext2_super_block param;
  82 char *creator_os /* = NULL */ ;
  83 char *volume_label /* = NULL */ ;
  84 char *mount_dir /* = NULL */ ;
  85 char *journal_device /* = NULL */ ;
  86
  87 static void usage(void)
  88 {
  89         fprintf(stderr, _("Usage: %s [-c|-t|-l filename] [-b block-size] "
  90         "[-f fragment-size]\n\t[-i bytes-per-inode] [-j journal-options]"
  91         " [-N number-of-inodes]\n\t[-m reserved-blocks-percentage] "
  92         "[-o creator-os] [-g blocks-per-group]\n\t[-L volume-label] "
  93         "[-M last-mounted-directory] [-O feature[,...]]\n\t"
  94         "[-r fs-revision] [-R raid_opts] [-s sparse-super-flag]\n\t"
  95         "[-qvSV] device [blocks-count]\n"),
  96                 program_name);
  97         exit(1);
  98 }
  99
 100 static int int_log2(int arg)
 101 {
 102         int     l = 0;
 103
 104         arg >>= 1;
 105         while (arg) {
 106                 l++;
 107                 arg >>= 1;
 108         }
 109         return l;
 110 }
 111
 112 static int int_log10(unsigned int arg)
 113 {
 114         int     l;
 115
 116         for (l=0; arg ; l++)
 117                 arg = arg / 10;
 118         return l;
 119 }
 120
 121 /*
 122  * This function sets the default parameters for a filesystem
 123  *
 124  * The type is specified by the user.  The size is the maximum size
 125  * (in megabytes) for which a set of parameters applies, with a size
 126  * of zero meaning that it is the default parameter for the type.
 127  * Note that order is important in the table below.
 128  */
 129 static char default_str[] = "default";
 130 struct mke2fs_defaults {
 131         const char      *type;
 132         int             size;
 133         int             blocksize;
 134         int             inode_ratio;
 135 } settings[] = {
 136         { default_str, 0, 4096, 8192 },
 137         { default_str, 512, 1024, 4096 },
 138         { default_str, 3, 1024, 8192 },
 139         { "news", 0, 4096, 4096 },
 140         { 0, 0, 0, 0},
 141 };
 142
 143 static void set_fs_defaults(char *fs_type, struct ext2_super_block *super,
 144                             int blocksize, int *inode_ratio)
 145 {
 146         int     megs;
 147         int     ratio = 0;
 148         struct mke2fs_defaults *p;
 149
 150         megs = (super->s_blocks_count * (EXT2_BLOCK_SIZE(super) / 1024) /
 151                 1024);
 152         if (inode_ratio)
 153                 ratio = *inode_ratio;
 154         if (!fs_type)
 155                 fs_type = default_str;
 156         for (p = settings; p->type; p++) {
 157                 if ((strcmp(p->type, fs_type) != 0) &&
 158                     (strcmp(p->type, default_str) != 0))
 159                         continue;
 160                 if ((p->size != 0) &&
 161                     (megs > p->size))
 162                         continue;
 163                 if (ratio == 0)
 164                         *inode_ratio = p->inode_ratio;
 165                 if (blocksize == 0) {
 166                         super->s_log_frag_size = super->s_log_block_size =
 167                                 int_log2(p->blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
 168                 }
 169         }
 170         if (blocksize == 0)
 171                 super->s_blocks_count /= EXT2_BLOCK_SIZE(super) / 1024;
 172 }
 173
 174 /*
 175  * Helper function for read_bb_file and test_disk
 176  */
 177 static void invalid_block(ext2_filsys fs, blk_t blk)
 178 {
 179         printf(_("Bad block %u out of range; ignored.\n"), blk);
 180         return;
 181 }
 182
 183 /*
 184  * Reads the bad blocks list from a file
 185  */
 186 static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list,
 187                          const char *bad_blocks_file)
 188 {
 189         FILE            *f;
 190         errcode_t       retval;
 191
 192         f = fopen(bad_blocks_file, "r");
 193         if (!f) {
 194                 com_err("read_bad_blocks_file", errno,
 195                         _("while trying to open %s"), bad_blocks_file);
 196                 exit(1);
 197         }
 198         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
 199         fclose (f);
 200         if (retval) {
 201                 com_err("ext2fs_read_bb_FILE", retval,
 202                         _("while reading in list of bad blocks from file"));
 203                 exit(1);
 204         }
 205 }
 206
 207 /*
 208  * Runs the badblocks program to test the disk
 209  */
 210 static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
 211 {
 212         FILE            *f;
 213         errcode_t       retval;
 214         char            buf[1024];
 215
 216         sprintf(buf, "badblocks -b %d %s%s %d", fs->blocksize,
 217                 quiet ? "" : "-s ", fs->device_name,
 218                 fs->super->s_blocks_count);
 219         if (verbose)
 220                 printf(_("Running command: %s\n"), buf);
 221         f = popen(buf, "r");
 222         if (!f) {
 223                 com_err("popen", errno,
 224                         _("while trying run '%s'"), buf);
 225                 exit(1);
 226         }
 227         retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
 228         pclose(f);
 229         if (retval) {
 230                 com_err("ext2fs_read_bb_FILE", retval,
 231                         _("while processing list of bad blocks from program"));
 232                 exit(1);
 233         }
 234 }
 235
 236 static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
 237 {
 238         int                     i, j;
 239         int                     must_be_good;
 240         blk_t                   blk;
 241         badblocks_iterate       bb_iter;
 242         errcode_t               retval;
 243         blk_t                   group_block;
 244         int                     group;
 245         int                     group_bad;
 246
 247         if (!bb_list)
 248                 return;
 249
 250         /*
 251          * The primary superblock and group descriptors *must* be
 252          * good; if not, abort.
 253          */
 254         must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
 255         for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
 256                 if (badblocks_list_test(bb_list, i)) {
 257                         fprintf(stderr, _("Block %d in primary "
 258                                 "superblock/group descriptor area bad.\n"), i);
 259                         fprintf(stderr, _("Blocks %d through %d must be good "
 260                                 "in order to build a filesystem.\n"),
 261                                 fs->super->s_first_data_block, must_be_good);
 262                         fprintf(stderr, _("Aborting....\n"));
 263                         exit(1);
 264                 }
 265         }
 266
 267         /*
 268          * See if any of the bad blocks are showing up in the backup
 269          * superblocks and/or group descriptors.  If so, issue a
 270          * warning and adjust the block counts appropriately.
 271          */
 272         group_block = fs->super->s_first_data_block +
 273                 fs->super->s_blocks_per_group;
 274
 275         for (i = 1; i < fs->group_desc_count; i++) {
 276                 group_bad = 0;
 277                 for (j=0; j < fs->desc_blocks+1; j++) {
 278                         if (badblocks_list_test(bb_list, group_block +
 279                                                 j)) {
 280                                 if (!group_bad)
 281                                         fprintf(stderr,
 282 _("Warning: the backup superblock/group descriptors at block %d contain\n"
 283 "       bad blocks.\n\n"),
 284                                                 group_block);
 285                                 group_bad++;
 286                                 group = ext2fs_group_of_blk(fs, group_block+j);
 287                                 fs->group_desc[group].bg_free_blocks_count++;
 288                                 fs->super->s_free_blocks_count++;
 289                         }
 290                 }
 291                 group_block += fs->super->s_blocks_per_group;
 292         }
 293
 294         /*
 295          * Mark all the bad blocks as used...
 296          */
 297         retval = badblocks_list_iterate_begin(bb_list, &bb_iter);
 298         if (retval) {
 299                 com_err("badblocks_list_iterate_begin", retval,
 300                         _("while marking bad blocks as used"));
 301                 exit(1);
 302         }
 303         while (badblocks_list_iterate(bb_iter, &blk))
 304                 ext2fs_mark_block_bitmap(fs->block_map, blk);
 305         badblocks_list_iterate_end(bb_iter);
 306 }
 307
 308 static void write_inode_tables(ext2_filsys fs)
 309 {
 310         errcode_t       retval;
 311         blk_t           blk;
 312         int             i, j, num, count;
 313         char            *buf;
 314         char            format[20], backup[80];
 315         int             sync_kludge = 0;
 316         char            *mke2fs_sync;
 317
 318         mke2fs_sync = getenv("MKE2FS_SYNC");
 319         if (mke2fs_sync)
 320                 sync_kludge = atoi(mke2fs_sync);
 321
 322         buf = malloc(fs->blocksize * STRIDE_LENGTH);
 323         if (!buf) {
 324                 com_err("malloc", ENOMEM,
 325                         _("while allocating zeroizing buffer"));
 326                 exit(1);
 327         }
 328         memset(buf, 0, fs->blocksize * STRIDE_LENGTH);
 329
 330         /*
 331          * Figure out how many digits we need
 332          */
 333         i = int_log10(fs->group_desc_count);
 334         sprintf(format, "%%%dd/%%%dld", i, i);
 335         memset(backup, '\b', sizeof(backup)-1);
 336         backup[sizeof(backup)-1] = 0;
 337         if ((2*i)+1 < sizeof(backup))
 338                 backup[(2*i)+1] = 0;
 339
 340         if (!quiet)
 341                 printf(_("Writing inode tables: "));
 342         for (i = 0; i < fs->group_desc_count; i++) {
 343                 if (!quiet)
 344                         printf(format, i, fs->group_desc_count);
 345
 346                 blk = fs->group_desc[i].bg_inode_table;
 347                 num = fs->inode_blocks_per_group;
 348
 349                 for (j=0; j < num; j += STRIDE_LENGTH, blk += STRIDE_LENGTH) {
 350                         if (num-j > STRIDE_LENGTH)
 351                                 count = STRIDE_LENGTH;
 352                         else
 353                                 count = num - j;
 354                         retval = io_channel_write_blk(fs->io, blk, count, buf);
 355                         if (retval)
 356                                 printf(_("Warning: could not write %d blocks "
 357                                        "in inode table starting at %d: %s\n"),
 358                                        count, blk, error_message(retval));
 359                 }
 360                 if (!quiet)
 361                         fputs(backup, stdout);
 362                 if (sync_kludge) {
 363                         if (sync_kludge == 1)
 364                                 sync();
 365                         else if ((i % sync_kludge) == 0)
 366                                 sync();
 367                 }
 368         }
 369         free(buf);
 370         if (!quiet)
 371                 fputs(_("done                            \n"), stdout);
 372 }
 373
 374 static void create_root_dir(ext2_filsys fs)
 375 {
 376         errcode_t       retval;
 377         struct ext2_inode       inode;
 378
 379         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
 380         if (retval) {
 381                 com_err("ext2fs_mkdir", retval, _("while creating root dir"));
 382                 exit(1);
 383         }
 384         if (geteuid()) {
 385                 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
 386                 if (retval) {
 387                         com_err("ext2fs_read_inode", retval,
 388                                 _("while reading root inode"));
 389                         exit(1);
 390                 }
 391                 inode.i_uid = getuid();
 392                 if (inode.i_uid)
 393                         inode.i_gid = getgid();
 394                 retval = ext2fs_write_inode(fs, EXT2_ROOT_INO, &inode);
 395                 if (retval) {
 396                         com_err("ext2fs_write_inode", retval,
 397                                 _("while setting root inode ownership"));
 398                         exit(1);
 399                 }
 400         }
 401 }
 402
 403 static void create_lost_and_found(ext2_filsys fs)
 404 {
 405         errcode_t               retval;
 406         ext2_ino_t              ino;
 407         const char              *name = "lost+found";
 408         int                     i;
 409         int                     lpf_size = 0;
 410
 411         retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
 412         if (retval) {
 413                 com_err("ext2fs_mkdir", retval,
 414                         _("while creating /lost+found"));
 415                 exit(1);
 416         }
 417
 418         retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
 419         if (retval) {
 420                 com_err("ext2_lookup", retval,
 421                         _("while looking up /lost+found"));
 422                 exit(1);
 423         }
 424
 425         for (i=1; i < EXT2_NDIR_BLOCKS; i++) {
 426                 if ((lpf_size += fs->blocksize) >= 16*1024)
 427                         break;
 428                 retval = ext2fs_expand_dir(fs, ino);
 429                 if (retval) {
 430                         com_err("ext2fs_expand_dir", retval,
 431                                 _("while expanding /lost+found"));
 432                         exit(1);
 433                 }
 434         }
 435 }
 436
 437 static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
 438 {
 439         errcode_t       retval;
 440
 441         ext2fs_mark_inode_bitmap(fs->inode_map, EXT2_BAD_INO);
 442         fs->group_desc[0].bg_free_inodes_count--;
 443         fs->super->s_free_inodes_count--;
 444         retval = ext2fs_update_bb_inode(fs, bb_list);
 445         if (retval) {
 446                 com_err("ext2fs_update_bb_inode", retval,
 447                         _("while setting bad block inode"));
 448                 exit(1);
 449         }
 450
 451 }
 452
 453 static void reserve_inodes(ext2_filsys fs)
 454 {
 455         ext2_ino_t      i;
 456         int             group;
 457
 458         for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++) {
 459                 ext2fs_mark_inode_bitmap(fs->inode_map, i);
 460                 group = ext2fs_group_of_ino(fs, i);
 461                 fs->group_desc[group].bg_free_inodes_count--;
 462                 fs->super->s_free_inodes_count--;
 463         }
 464         ext2fs_mark_ib_dirty(fs);
 465 }
 466
 467 static void zap_sector(ext2_filsys fs, int sect)
 468 {
 469         char buf[512];
 470         int retval;
 471
 472         memset(buf, 0, 512);
 473
 474         io_channel_set_blksize(fs->io, 512);
 475         retval = io_channel_write_blk(fs->io, sect, -512, buf);
 476         io_channel_set_blksize(fs->io, fs->blocksize);
 477         if (retval)
 478                 printf(_("Warning: could not erase sector %d: %s\n"), sect,
 479                        error_message(retval));
 480 }
 481
 482
 483 static void show_stats(ext2_filsys fs)
 484 {
 485         struct ext2_super_block *s = fs->super;
 486         char                    buf[80];
 487         blk_t                   group_block;
 488         int                     i, need, col_left;
 489
 490         if (param.s_blocks_count != s->s_blocks_count)
 491                 printf(_("warning: %d blocks unused.\n\n"),
 492                        param.s_blocks_count - s->s_blocks_count);
 493
 494         memset(buf, 0, sizeof(buf));
 495         strncpy(buf, s->s_volume_name, sizeof(s->s_volume_name));
 496         printf(_("Filesystem label=%s\n"), buf);
 497         printf(_("OS type: "));
 498         switch (fs->super->s_creator_os) {
 499             case EXT2_OS_LINUX: printf ("Linux"); break;
 500             case EXT2_OS_HURD:  printf ("GNU/Hurd");   break;
 501             case EXT2_OS_MASIX: printf ("Masix"); break;
 502             default:            printf (_("(unknown os)"));
 503         }
 504         printf("\n");
 505         printf(_("Block size=%u (log=%u)\n"), fs->blocksize,
 506                 s->s_log_block_size);
 507         printf(_("Fragment size=%u (log=%u)\n"), fs->fragsize,
 508                 s->s_log_frag_size);
 509         printf(_("%u inodes, %u blocks\n"), s->s_inodes_count,
 510                s->s_blocks_count);
 511         printf(_("%u blocks (%2.2f%%) reserved for the super user\n"),
 512                 s->s_r_blocks_count,
 513                100.0 * s->s_r_blocks_count / s->s_blocks_count);
 514         printf(_("First data block=%u\n"), s->s_first_data_block);
 515         if (fs->group_desc_count > 1)
 516                 printf(_("%u block groups\n"), fs->group_desc_count);
 517         else
 518                 printf(_("%u block group\n"), fs->group_desc_count);
 519         printf(_("%u blocks per group, %u fragments per group\n"),
 520                s->s_blocks_per_group, s->s_frags_per_group);
 521         printf(_("%u inodes per group\n"), s->s_inodes_per_group);
 522
 523         if (fs->group_desc_count == 1) {
 524                 printf("\n");
 525                 return;
 526         }
 527
 528         printf(_("Superblock backups stored on blocks: "));
 529         group_block = s->s_first_data_block;
 530         col_left = 0;
 531         for (i = 1; i < fs->group_desc_count; i++) {
 532                 group_block += s->s_blocks_per_group;
 533                 if (!ext2fs_bg_has_super(fs, i))
 534                         continue;
 535                 if (i != 1)
 536                         printf(", ");
 537                 need = int_log10(group_block) + 2;
 538                 if (need > col_left) {
 539                         printf("\n\t");
 540                         col_left = 72;
 541                 }
 542                 col_left -= need;
 543                 printf("%u", group_block);
 544         }
 545         printf("\n\n");
 546 }
 547
 548 /*
 549  * Set the S_CREATOR_OS field.  Return true if OS is known,
 550  * otherwise, 0.
 551  */
 552 static int set_os(struct ext2_super_block *sb, char *os)
 553 {
 554         if (isdigit (*os))
 555                 sb->s_creator_os = atoi (os);
 556         else if (strcasecmp(os, "linux") == 0)
 557                 sb->s_creator_os = EXT2_OS_LINUX;
 558         else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0)
 559                 sb->s_creator_os = EXT2_OS_HURD;
 560         else if (strcasecmp(os, "masix") == 0)
 561                 sb->s_creator_os = EXT2_OS_MASIX;
 562         else
 563                 return 0;
 564         return 1;
 565 }
 566
 567 #define PATH_SET "PATH=/sbin"
 568
 569 static void parse_raid_opts(const char *opts)
 570 {
 571         char    *buf, *token, *next, *p, *arg;
 572         int     len;
 573         int     raid_usage = 0;
 574
 575         len = strlen(opts);
 576         buf = malloc(len+1);
 577         if (!buf) {
 578                 fprintf(stderr, _("Couldn't allocate memory to parse "
 579                         "raid options!\n"));
 580                 exit(1);
 581         }
 582         strcpy(buf, opts);
 583         for (token = buf; token && *token; token = next) {
 584                 p = strchr(token, ',');
 585                 next = 0;
 586                 if (p) {
 587                         *p = 0;
 588                         next = p+1;
 589                 }
 590                 arg = strchr(token, '=');
 591                 if (arg) {
 592                         *arg = 0;
 593                         arg++;
 594                 }
 595                 if (strcmp(token, "stride") == 0) {
 596                         if (!arg) {
 597                                 raid_usage++;
 598                                 continue;
 599                         }
 600                         fs_stride = strtoul(arg, &p, 0);
 601                         if (*p || (fs_stride == 0)) {
 602                                 fprintf(stderr,
 603                                         _("Invalid stride parameter.\n"));
 604                                 raid_usage++;
 605                                 continue;
 606                         }
 607                 } else
 608                         raid_usage++;
 609         }
 610         if (raid_usage) {
 611                 fprintf(stderr, _("\nBad raid options specified.\n\n"
 612                         "Raid options are separated by commas, "
 613                         "and may take an argument which\n"
 614                         "\tis set off by an equals ('=') sign.\n\n"
 615                         "Valid raid options are:\n"
 616                         "\tstride=<stride length in blocks>\n\n"));
 617                 exit(1);
 618         }
 619 }
 620
 621 static __u32 ok_features[3] = {
 622         0,                                      /* Compat */
 623         EXT2_FEATURE_INCOMPAT_FILETYPE,         /* Incompat */
 624         EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER     /* R/O compat */
 625 };
 626
 627
 628 static void PRS(int argc, char *argv[])
 629 {
 630         int             c;
 631         int             size;
 632         char *          tmp;
 633         blk_t           group_blk_max = 8192;
 634         int             blocksize = 0;
 635         int             inode_ratio = 0;
 636         int             reserved_ratio = 5;
 637         ext2_ino_t      num_inodes = 0;
 638         errcode_t       retval;
 639         int             sparse_option = 1;
 640         char *          oldpath = getenv("PATH");
 641         struct ext2_super_block *param_ext2 = &param;
 642         char *          raid_opts = 0;
 643         char *          journal_opts = 0;
 644         char *          fs_type = 0;
 645         const char *    feature_set = "filetype";
 646         blk_t           dev_size;
 647 #ifdef linux
 648         struct          utsname ut;
 649
 650         if (uname(&ut)) {
 651                 perror("uname");
 652                 exit(1);
 653         }
 654         if ((ut.release[0] == '1') ||
 655             (ut.release[0] == '2' && ut.release[1] == '.' &&
 656              ut.release[2] < '2' && ut.release[3] == '.'))
 657                 feature_set = NULL;
 658 #endif
 659         /* Update our PATH to include /sbin  */
 660         if (oldpath) {
 661                 char *newpath;
 662
 663                 newpath = malloc(sizeof (PATH_SET) + 1 + strlen (oldpath));
 664                 strcpy (newpath, PATH_SET);
 665                 strcat (newpath, ":");
 666                 strcat (newpath, oldpath);
 667                 putenv (newpath);
 668         } else
 669                 putenv (PATH_SET);
 670
 671         setbuf(stdout, NULL);
 672         setbuf(stderr, NULL);
 673         initialize_ext2_error_table();
 674         memset(&param, 0, sizeof(struct ext2_super_block));
 675         param.s_rev_level = 1;  /* Create revision 1 filesystems now */
 676
 677         fprintf (stderr, _("mke2fs %s, %s for EXT2 FS %s, %s\n"),
 678                  E2FSPROGS_VERSION, E2FSPROGS_DATE,
 679                  EXT2FS_VERSION, EXT2FS_DATE);
 680         if (argc && *argv)
 681                 program_name = *argv;
 682         while ((c = getopt (argc, argv,
 683                     "b:cf:g:i:j:l:m:no:qr:R:s:tvI:ST:FL:M:N:O:V")) != EOF)
 684                 switch (c) {
 685                 case 'b':
 686                         blocksize = strtoul(optarg, &tmp, 0);
 687                         if (blocksize < 1024 || blocksize > 4096 || *tmp) {
 688                                 com_err(program_name, 0,
 689                                         _("bad block size - %s"), optarg);
 690                                 exit(1);
 691                         }
 692                         param.s_log_block_size =
 693                                 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
 694                         group_blk_max = blocksize * 8;
 695                         break;
 696                 case 'c':
 697                 case 't':       /* Check for bad blocks */
 698                         cflag = 1;
 699                         break;
 700                 case 'f':
 701                         size = strtoul(optarg, &tmp, 0);
 702                         if (size < 1024 || size > 4096 || *tmp) {
 703                                 com_err(program_name, 0,
 704                                         _("bad fragment size - %s"),
 705                                         optarg);
 706                                 exit(1);
 707                         }
 708                         param.s_log_frag_size =
 709                                 int_log2(size >> EXT2_MIN_BLOCK_LOG_SIZE);
 710                         printf(_("Warning: fragments not supported.  "
 711                                "Ignoring -f option\n"));
 712                         break;
 713                 case 'g':
 714                         param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
 715                         if (*tmp) {
 716                                 com_err(program_name, 0,
 717                                         _("Illegal number for blocks per group"));
 718                                 exit(1);
 719                         }
 720                         if ((param.s_blocks_per_group % 8) != 0) {
 721                                 com_err(program_name, 0,
 722                                 _("blocks per group must be multiple of 8"));
 723                                 exit(1);
 724                         }
 725                         break;
 726                 case 'i':
 727                         inode_ratio = strtoul(optarg, &tmp, 0);
 728                         if (inode_ratio < 1024 || inode_ratio > 256 * 1024 ||
 729                             *tmp) {
 730                                 com_err(program_name, 0,
 731                                         _("bad inode ratio - %s"), optarg);
 732                                 exit(1);
 733                         }
 734                         break;
 735                 case 'j':
 736                         journal_opts = optarg;
 737                         break;
 738                 case 'l':
 739                         bad_blocks_filename = malloc(strlen(optarg)+1);
 740                         if (!bad_blocks_filename) {
 741                                 com_err(program_name, ENOMEM,
 742                                         _("in malloc for bad_blocks_filename"));
 743                                 exit(1);
 744                         }
 745                         strcpy(bad_blocks_filename, optarg);
 746                         break;
 747                 case 'm':
 748                         reserved_ratio = strtoul(optarg, &tmp, 0);
 749                         if (reserved_ratio > 50 || *tmp) {
 750                                 com_err(program_name, 0,
 751                                         _("bad reserved blocks percent - %s"),
 752                                         optarg);
 753                                 exit(1);
 754                         }
 755                         break;
 756                 case 'n':
 757                         noaction++;
 758                         break;
 759                 case 'o':
 760                         creator_os = optarg;
 761                         break;
 762                 case 'r':
 763                         param.s_rev_level = atoi(optarg);
 764                         break;
 765                 case 's':
 766                         sparse_option = atoi(optarg);
 767                         break;
 768 #ifdef EXT2_DYNAMIC_REV
 769                 case 'I':
 770                         param.s_inode_size = atoi(optarg);
 771                         break;
 772 #endif
 773                 case 'N':
 774                         num_inodes = atoi(optarg);
 775                         break;
 776                 case 'v':
 777                         verbose = 1;
 778                         break;
 779                 case 'q':
 780                         quiet = 1;
 781                         break;
 782                 case 'F':
 783                         force = 1;
 784                         break;
 785                 case 'L':
 786                         volume_label = optarg;
 787                         break;
 788                 case 'M':
 789                         mount_dir = optarg;
 790                         break;
 791                 case 'O':
 792                         feature_set = optarg;
 793                         break;
 794                 case 'R':
 795                         raid_opts = optarg;
 796                         break;
 797                 case 'S':
 798                         super_only = 1;
 799                         break;
 800                 case 'T':
 801                         fs_type = optarg;
 802                         break;
 803                 case 'V':
 804                         /* Print version number and exit */
 805                         fprintf(stderr, _("\tUsing %s\n"),
 806                                 error_message(EXT2_ET_BASE));
 807                         exit(0);
 808                 default:
 809                         usage();
 810                 }
 811         if (optind == argc)
 812                 usage();
 813         device_name = argv[optind];
 814         optind++;
 815         if (optind < argc) {
 816                 unsigned long tmp2  = strtoul(argv[optind++], &tmp, 0);
 817
 818                 if ((*tmp) || (tmp2 > 0xfffffffful)) {
 819                         com_err(program_name, 0, _("bad blocks count - %s"),
 820                                 argv[optind - 1]);
 821                         exit(1);
 822                 }
 823                 param.s_blocks_count = tmp2;
 824         }
 825         if (optind < argc)
 826                 usage();
 827
 828         if (raid_opts)
 829                 parse_raid_opts(raid_opts);
 830
 831         if (journal_opts)
 832                 parse_journal_opts(journal_opts);
 833
 834         if (!force)
 835                 check_plausibility(device_name);
 836         check_mount(device_name, force, _("filesystem"));
 837
 838         param.s_log_frag_size = param.s_log_block_size;
 839
 840         if (noaction && param.s_blocks_count) {
 841                 dev_size = param.s_blocks_count;
 842                 retval = 0;
 843         } else
 844                 retval = ext2fs_get_device_size(device_name,
 845                                                 EXT2_BLOCK_SIZE(&param),
 846                                                 &dev_size);
 847         if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
 848                 com_err(program_name, retval,
 849                         _("while trying to determine filesystem size"));
 850                 exit(1);
 851         }
 852         if (!param.s_blocks_count) {
 853                 if (retval == EXT2_ET_UNIMPLEMENTED) {
 854                         com_err(program_name, 0,
 855                                 _("Couldn't determine device size; you "
 856                                 "must specify\nthe size of the "
 857                                 "filesystem\n"));
 858                         exit(1);
 859                 } else {
 860                         if (dev_size == 0) {
 861                                 com_err(program_name, 0,
 862                                 _("Device size reported to be zero.  "
 863                                   "Invalid partition specified, or\n\t"
 864                                   "partition table wasn't reread "
 865                                   "after running fdisk, due to\n\t"
 866                                   "a modified partition being busy "
 867                                   "and in use.  You may need to reboot\n\t"
 868                                   "to re-read your partition table.\n"
 869                                   ));
 870                                 exit(1);
 871                         }
 872                         param.s_blocks_count = dev_size;
 873                 }
 874
 875         } else if (!force && (param.s_blocks_count > dev_size)) {
 876                 com_err(program_name, 0,
 877                         _("Filesystem larger than apparent filesystem size."));
 878                 proceed_question();
 879         }
 880
 881         set_fs_defaults(fs_type, param_ext2, blocksize, &inode_ratio);
 882
 883         if (param.s_blocks_per_group) {
 884                 if (param.s_blocks_per_group < 256 ||
 885                     param.s_blocks_per_group > group_blk_max || *tmp) {
 886                         com_err(program_name, 0,
 887                                 _("blocks per group count out of range"));
 888                         exit(1);
 889                 }
 890         }
 891
 892         /*
 893          * Calculate number of inodes based on the inode ratio
 894          */
 895         param.s_inodes_count = num_inodes ? num_inodes :
 896                 ((__u64) param.s_blocks_count * EXT2_BLOCK_SIZE(&param))
 897                         / inode_ratio;
 898
 899         /*
 900          * Calculate number of blocks to reserve
 901          */
 902         param.s_r_blocks_count = (param.s_blocks_count * reserved_ratio) / 100;
 903
 904         /* Turn off features not supported by the earlier filesystem version */
 905         if (param.s_rev_level == 0) {
 906                 sparse_option = 0;
 907                 feature_set = NULL;
 908         }
 909         if (sparse_option)
 910                 param_ext2->s_feature_ro_compat |=
 911                         EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
 912
 913         if (feature_set && !strncasecmp(feature_set, "none", 4))
 914                 feature_set = NULL;
 915         if (feature_set && e2p_edit_feature(feature_set,
 916                                             &param_ext2->s_feature_compat,
 917                                             ok_features)) {
 918                 fprintf(stderr, _("Invalid filesystem option set: %s\n"),
 919                         feature_set);
 920                 exit(1);
 921         }
 922 }
 923
 924 int main (int argc, char *argv[])
 925 {
 926         errcode_t       retval = 0;
 927         ext2_filsys     fs;
 928         badblocks_list  bb_list = 0;
 929         int             journal_blocks;
 930
 931 #ifdef ENABLE_NLS
 932         setlocale(LC_MESSAGES, "");
 933         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
 934         textdomain(NLS_CAT_NAME);
 935 #endif
 936         PRS(argc, argv);
 937
 938         /*
 939          * Initialize the superblock....
 940          */
 941         retval = ext2fs_initialize(device_name, 0, &param,
 942                                    unix_io_manager, &fs);
 943         if (retval) {
 944                 com_err(device_name, retval, _("while setting up superblock"));
 945                 exit(1);
 946         }
 947
 948         /*
 949          * Wipe out the old on-disk superblock
 950          */
 951         zap_sector(fs, 2);
 952
 953         /*
 954          * Generate a UUID for it...
 955          */
 956         uuid_generate(fs->super->s_uuid);
 957
 958         /*
 959          * Override the creator OS, if applicable
 960          */
 961         if (creator_os && !set_os(fs->super, creator_os)) {
 962                 com_err (program_name, 0, _("unknown os - %s"), creator_os);
 963                 exit(1);
 964         }
 965
 966         /*
 967          * For the Hurd, we will turn off filetype since it doesn't
 968          * support it.
 969          */
 970         if (fs->super->s_creator_os == EXT2_OS_HURD)
 971                 fs->super->s_feature_incompat &=
 972                         ~EXT2_FEATURE_INCOMPAT_FILETYPE;
 973
 974         /*
 975          * Set the volume label...
 976          */
 977         if (volume_label) {
 978                 memset(fs->super->s_volume_name, 0,
 979                        sizeof(fs->super->s_volume_name));
 980                 strncpy(fs->super->s_volume_name, volume_label,
 981                         sizeof(fs->super->s_volume_name));
 982         }
 983
 984         /*
 985          * Set the last mount directory
 986          */
 987         if (mount_dir) {
 988                 memset(fs->super->s_last_mounted, 0,
 989                        sizeof(fs->super->s_last_mounted));
 990                 strncpy(fs->super->s_last_mounted, mount_dir,
 991                         sizeof(fs->super->s_last_mounted));
 992         }
 993
 994         if (!quiet || noaction)
 995                 show_stats(fs);
 996
 997         if (noaction)
 998                 exit(0);
 999
1000         if (bad_blocks_filename)
1001                 read_bb_file(fs, &bb_list, bad_blocks_filename);
1002         if (cflag)
1003                 test_disk(fs, &bb_list);
1004
1005         handle_bad_blocks(fs, bb_list);
1006         fs->stride = fs_stride;
1007         retval = ext2fs_allocate_tables(fs);
1008         if (retval) {
1009                 com_err(program_name, retval,
1010                         _("while trying to allocate filesystem tables"));
1011                 exit(1);
1012         }
1013         if (super_only) {
1014                 fs->super->s_state |= EXT2_ERROR_FS;
1015                 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
1016         } else {
1017                 write_inode_tables(fs);
1018                 create_root_dir(fs);
1019                 create_lost_and_found(fs);
1020                 reserve_inodes(fs);
1021                 create_bad_block_inode(fs, bb_list);
1022 #ifdef ZAP_BOOTBLOCK
1023                 zap_sector(fs, 0);
1024 #endif
1025         }
1026
1027         journal_blocks = journal_size * 1024 / (fs->blocksize   / 1024);
1028         if (journal_device) {
1029                 if (!force)
1030                         check_plausibility(journal_device);
1031                 check_mount(journal_device, force, _("journal"));
1032
1033                 if (!quiet)
1034                         printf(_("Creating journal on device %s: "),
1035                                journal_device);
1036                 retval = ext2fs_add_journal_device(fs, journal_device,
1037                                                    journal_blocks,
1038                                                    journal_flags);
1039                 if(retval) {
1040                         com_err (program_name, retval,
1041                                  _("while trying to create journal on device %s"),
1042                                  journal_device);
1043                         exit(1);
1044                 }
1045                 if (!quiet)
1046                         printf(_("done\n"));
1047         } else if (journal_size) {
1048                 if (!quiet)
1049                         printf(_("Creating journal (%d blocks): "),
1050                                journal_blocks);
1051                 retval = ext2fs_add_journal_inode(fs, journal_blocks,
1052                                                   journal_flags);
1053                 if (retval) {
1054                         com_err (program_name, retval,
1055                                  _("while trying to create journal"));
1056                         exit(1);
1057                 }
1058                 if (!quiet)
1059                         printf(_("done\n"));
1060         }
1061
1062         if (!quiet)
1063                 printf(_("Writing superblocks and "
1064                        "filesystem accounting information: "));
1065         retval = ext2fs_flush(fs);
1066         if (retval) {
1067                 printf(_("\nWarning, had trouble writing out superblocks."));
1068         }
1069         if (!quiet)
1070                 printf(_("done\n"));
1071         ext2fs_close(fs);
1072         return 0;
1073 }