misc/tune2fs.c

   1 /*
   2  * tune2fs.c - Change the file system parameters on an ext2 file system
   3  *
   4  * Copyright (C) 1992, 1993, 1994  Remy Card <card@masi.ibp.fr>
   5  *                                 Laboratoire MASI, Institut Blaise Pascal
   6  *                                 Universite Pierre et Marie Curie (Paris VI)
   7  *
   8  * Copyright 1995, 1996, 1997, 1998, 1999, 2000 by Theodore Ts'o.
   9  *
  10  * %Begin-Header%
  11  * This file may be redistributed under the terms of the GNU Public
  12  * License.
  13  * %End-Header%
  14  */
  15
  16 /*
  17  * History:
  18  * 93/06/01     - Creation
  19  * 93/10/31     - Added the -c option to change the maximal mount counts
  20  * 93/12/14     - Added -l flag to list contents of superblock
  21  *                M.J.E. Mol (marcel@duteca.et.tudelft.nl)
  22  *                F.W. ten Wolde (franky@duteca.et.tudelft.nl)
  23  * 93/12/29     - Added the -e option to change errors behavior
  24  * 94/02/27     - Ported to use the ext2fs library
  25  * 94/03/06     - Added the checks interval from Uwe Ohse (uwe@tirka.gun.de)
  26  */
  27
  28 #define _XOPEN_SOURCE 600 /* for inclusion of strptime() */
  29 #include <fcntl.h>
  30 #include <grp.h>
  31 #ifdef HAVE_GETOPT_H
  32 #include <getopt.h>
  33 #else
  34 extern char *optarg;
  35 extern int optind;
  36 #endif
  37 #include <pwd.h>
  38 #include <stdio.h>
  39 #ifdef HAVE_STDLIB_H
  40 #include <stdlib.h>
  41 #endif
  42 #ifdef HAVE_STRINGS_H
  43 #include <strings.h>    /* for strcasecmp() */
  44 #else
  45 #define _BSD_SOURCE     /* for inclusion of strcasecmp() via <string.h> */
  46 #endif
  47 #include <string.h>
  48 #include <time.h>
  49 #include <unistd.h>
  50 #include <sys/types.h>
  51 #include <libgen.h>
  52 #include <limits.h>
  53
  54 #include "ext2fs/ext2_fs.h"
  55 #include "ext2fs/ext2fs.h"
  56 #include "et/com_err.h"
  57 #include "uuid/uuid.h"
  58 #include "e2p/e2p.h"
  59 #include "jfs_user.h"
  60 #include "util.h"
  61 #include "blkid/blkid.h"
  62 #include "quota/mkquota.h"
  63
  64 #include "../version.h"
  65 #include "nls-enable.h"
  66
  67 #define QOPT_ENABLE     (1)
  68 #define QOPT_DISABLE    (-1)
  69
  70 extern int ask_yn(const char *string, int def);
  71
  72 const char *program_name = "tune2fs";
  73 char *device_name;
  74 char *new_label, *new_last_mounted, *new_UUID;
  75 char *io_options;
  76 static int c_flag, C_flag, e_flag, f_flag, g_flag, i_flag, l_flag, L_flag;
  77 static int m_flag, M_flag, Q_flag, r_flag, s_flag = -1, u_flag, U_flag, T_flag;
  78 static int I_flag;
  79 static int clear_mmp;
  80 static time_t last_check_time;
  81 static int print_label;
  82 static int max_mount_count, mount_count, mount_flags;
  83 static unsigned long interval;
  84 static blk64_t reserved_blocks;
  85 static double reserved_ratio;
  86 static unsigned long resgid, resuid;
  87 static unsigned short errors;
  88 static int open_flag;
  89 static char *features_cmd;
  90 static char *mntopts_cmd;
  91 static int stride, stripe_width;
  92 static int stride_set, stripe_width_set;
  93 static char *extended_cmd;
  94 static unsigned long new_inode_size;
  95 static char *ext_mount_opts;
  96 static int usrquota, grpquota;
  97
  98 int journal_size, journal_flags;
  99 char *journal_device;
 100
 101 static struct list_head blk_move_list;
 102
 103 struct blk_move {
 104         struct list_head list;
 105         blk64_t old_loc;
 106         blk64_t new_loc;
 107 };
 108
 109
 110 static const char *please_fsck = N_("Please run e2fsck on the filesystem.\n");
 111
 112 #ifdef CONFIG_BUILD_FINDFS
 113 void do_findfs(int argc, char **argv);
 114 #endif
 115
 116 static void usage(void)
 117 {
 118         fprintf(stderr,
 119                 _("Usage: %s [-c max_mounts_count] [-e errors_behavior] "
 120                   "[-g group]\n"
 121                   "\t[-i interval[d|m|w]] [-j] [-J journal_options] [-l]\n"
 122                   "\t[-m reserved_blocks_percent] "
 123                   "[-o [^]mount_options[,...]] [-p mmp_update_interval]\n"
 124                   "\t[-r reserved_blocks_count] [-u user] [-C mount_count] "
 125                   "[-L volume_label]\n"
 126                   "\t[-M last_mounted_dir] [-O [^]feature[,...]]\n"
 127 #ifdef CONFIG_QUOTA
 128                   "\t[-Q quota_options]\n"
 129 #endif
 130                   "\t[-E extended-option[,...]] [-T last_check_time] "
 131                   "[-U UUID]\n\t[ -I new_inode_size ] device\n"), program_name);
 132         exit(1);
 133 }
 134
 135 static __u32 ok_features[3] = {
 136         /* Compat */
 137         EXT3_FEATURE_COMPAT_HAS_JOURNAL |
 138                 EXT2_FEATURE_COMPAT_DIR_INDEX,
 139         /* Incompat */
 140         EXT2_FEATURE_INCOMPAT_FILETYPE |
 141                 EXT3_FEATURE_INCOMPAT_EXTENTS |
 142                 EXT4_FEATURE_INCOMPAT_FLEX_BG |
 143                 EXT4_FEATURE_INCOMPAT_MMP,
 144         /* R/O compat */
 145         EXT2_FEATURE_RO_COMPAT_LARGE_FILE |
 146                 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
 147                 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
 148                 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
 149                 EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
 150 #ifdef CONFIG_QUOTA
 151                 EXT4_FEATURE_RO_COMPAT_QUOTA |
 152 #endif
 153                 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
 154 };
 155
 156 static __u32 clear_ok_features[3] = {
 157         /* Compat */
 158         EXT3_FEATURE_COMPAT_HAS_JOURNAL |
 159                 EXT2_FEATURE_COMPAT_RESIZE_INODE |
 160                 EXT2_FEATURE_COMPAT_DIR_INDEX,
 161         /* Incompat */
 162         EXT2_FEATURE_INCOMPAT_FILETYPE |
 163                 EXT4_FEATURE_INCOMPAT_FLEX_BG |
 164                 EXT4_FEATURE_INCOMPAT_MMP,
 165         /* R/O compat */
 166         EXT2_FEATURE_RO_COMPAT_LARGE_FILE |
 167                 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
 168                 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
 169                 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
 170 #ifdef CONFIG_QUOTA
 171                 EXT4_FEATURE_RO_COMPAT_QUOTA |
 172 #endif
 173                 EXT4_FEATURE_RO_COMPAT_GDT_CSUM
 174 };
 175
 176 /*
 177  * Remove an external journal from the filesystem
 178  */
 179 static int remove_journal_device(ext2_filsys fs)
 180 {
 181         char            *journal_path;
 182         ext2_filsys     jfs;
 183         char            buf[1024];
 184         journal_superblock_t    *jsb;
 185         int             i, nr_users;
 186         errcode_t       retval;
 187         int             commit_remove_journal = 0;
 188         io_manager      io_ptr;
 189
 190         if (f_flag)
 191                 commit_remove_journal = 1; /* force removal even if error */
 192
 193         uuid_unparse(fs->super->s_journal_uuid, buf);
 194         journal_path = blkid_get_devname(NULL, "UUID", buf);
 195
 196         if (!journal_path) {
 197                 journal_path =
 198                         ext2fs_find_block_device(fs->super->s_journal_dev);
 199                 if (!journal_path)
 200                         goto no_valid_journal;
 201         }
 202
 203 #ifdef CONFIG_TESTIO_DEBUG
 204         if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
 205                 io_ptr = test_io_manager;
 206                 test_io_backing_manager = unix_io_manager;
 207         } else
 208 #endif
 209                 io_ptr = unix_io_manager;
 210         retval = ext2fs_open(journal_path, EXT2_FLAG_RW|
 211                              EXT2_FLAG_JOURNAL_DEV_OK, 0,
 212                              fs->blocksize, io_ptr, &jfs);
 213         if (retval) {
 214                 com_err(program_name, retval, "%s",
 215                         _("while trying to open external journal"));
 216                 goto no_valid_journal;
 217         }
 218         if (!(jfs->super->s_feature_incompat &
 219               EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)) {
 220                 fprintf(stderr, _("%s is not a journal device.\n"),
 221                         journal_path);
 222                 goto no_valid_journal;
 223         }
 224
 225         /* Get the journal superblock */
 226         if ((retval = io_channel_read_blk64(jfs->io, 1, -1024, buf))) {
 227                 com_err(program_name, retval, "%s",
 228                         _("while reading journal superblock"));
 229                 goto no_valid_journal;
 230         }
 231
 232         jsb = (journal_superblock_t *) buf;
 233         if ((jsb->s_header.h_magic != (unsigned)ntohl(JFS_MAGIC_NUMBER)) ||
 234             (jsb->s_header.h_blocktype != (unsigned)ntohl(JFS_SUPERBLOCK_V2))) {
 235                 fputs(_("Journal superblock not found!\n"), stderr);
 236                 goto no_valid_journal;
 237         }
 238
 239         /* Find the filesystem UUID */
 240         nr_users = ntohl(jsb->s_nr_users);
 241         for (i = 0; i < nr_users; i++) {
 242                 if (memcmp(fs->super->s_uuid, &jsb->s_users[i * 16], 16) == 0)
 243                         break;
 244         }
 245         if (i >= nr_users) {
 246                 fputs(_("Filesystem's UUID not found on journal device.\n"),
 247                       stderr);
 248                 commit_remove_journal = 1;
 249                 goto no_valid_journal;
 250         }
 251         nr_users--;
 252         for (i = 0; i < nr_users; i++)
 253                 memcpy(&jsb->s_users[i * 16], &jsb->s_users[(i + 1) * 16], 16);
 254         jsb->s_nr_users = htonl(nr_users);
 255
 256         /* Write back the journal superblock */
 257         if ((retval = io_channel_write_blk64(jfs->io, 1, -1024, buf))) {
 258                 com_err(program_name, retval,
 259                         "while writing journal superblock.");
 260                 goto no_valid_journal;
 261         }
 262
 263         commit_remove_journal = 1;
 264
 265 no_valid_journal:
 266         if (commit_remove_journal == 0) {
 267                 fputs(_("Cannot locate journal device. It was NOT removed\n"
 268                         "Use -f option to remove missing journal device.\n"),
 269                       stderr);
 270                 return 1;
 271         }
 272         fs->super->s_journal_dev = 0;
 273         uuid_clear(fs->super->s_journal_uuid);
 274         ext2fs_mark_super_dirty(fs);
 275         fputs(_("Journal removed\n"), stdout);
 276         free(journal_path);
 277
 278         return 0;
 279 }
 280
 281 /* Helper function for remove_journal_inode */
 282 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
 283                                e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
 284                                blk64_t ref_block EXT2FS_ATTR((unused)),
 285                                int ref_offset EXT2FS_ATTR((unused)),
 286                                void *private EXT2FS_ATTR((unused)))
 287 {
 288         blk64_t block;
 289         int     group;
 290
 291         block = *blocknr;
 292         ext2fs_unmark_block_bitmap2(fs->block_map, block);
 293         group = ext2fs_group_of_blk2(fs, block);
 294         ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
 295         ext2fs_group_desc_csum_set(fs, group);
 296         ext2fs_free_blocks_count_add(fs->super, EXT2FS_CLUSTER_RATIO(fs));
 297         return 0;
 298 }
 299
 300 /*
 301  * Remove the journal inode from the filesystem
 302  */
 303 static errcode_t remove_journal_inode(ext2_filsys fs)
 304 {
 305         struct ext2_inode       inode;
 306         errcode_t               retval;
 307         ino_t                   ino = fs->super->s_journal_inum;
 308
 309         retval = ext2fs_read_inode(fs, ino,  &inode);
 310         if (retval) {
 311                 com_err(program_name, retval, "%s",
 312                         _("while reading journal inode"));
 313                 return retval;
 314         }
 315         if (ino == EXT2_JOURNAL_INO) {
 316                 retval = ext2fs_read_bitmaps(fs);
 317                 if (retval) {
 318                         com_err(program_name, retval, "%s",
 319                                 _("while reading bitmaps"));
 320                         return retval;
 321                 }
 322                 retval = ext2fs_block_iterate3(fs, ino,
 323                                                BLOCK_FLAG_READ_ONLY, NULL,
 324                                                release_blocks_proc, NULL);
 325                 if (retval) {
 326                         com_err(program_name, retval, "%s",
 327                                 _("while clearing journal inode"));
 328                         return retval;
 329                 }
 330                 memset(&inode, 0, sizeof(inode));
 331                 ext2fs_mark_bb_dirty(fs);
 332                 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
 333         } else
 334                 inode.i_flags &= ~EXT2_IMMUTABLE_FL;
 335         retval = ext2fs_write_inode(fs, ino, &inode);
 336         if (retval) {
 337                 com_err(program_name, retval, "%s",
 338                         _("while writing journal inode"));
 339                 return retval;
 340         }
 341         fs->super->s_journal_inum = 0;
 342         ext2fs_mark_super_dirty(fs);
 343
 344         return 0;
 345 }
 346
 347 /*
 348  * Update the default mount options
 349  */
 350 static int update_mntopts(ext2_filsys fs, char *mntopts)
 351 {
 352         struct ext2_super_block *sb = fs->super;
 353
 354         if (e2p_edit_mntopts(mntopts, &sb->s_default_mount_opts, ~0)) {
 355                 fprintf(stderr, _("Invalid mount option set: %s\n"),
 356                         mntopts);
 357                 return 1;
 358         }
 359         ext2fs_mark_super_dirty(fs);
 360
 361         return 0;
 362 }
 363
 364 static int check_fsck_needed(ext2_filsys fs)
 365 {
 366         if (fs->super->s_state & EXT2_VALID_FS)
 367                 return 0;
 368         printf("\n%s\n", _(please_fsck));
 369         if (mount_flags & EXT2_MF_READONLY)
 370                 printf(_("(and reboot afterwards!)\n"));
 371         return 1;
 372 }
 373
 374 static void request_fsck_afterwards(ext2_filsys fs)
 375 {
 376         static int requested = 0;
 377
 378         if (requested++)
 379                 return;
 380         fs->super->s_state &= ~EXT2_VALID_FS;
 381         printf("\n%s\n", _(please_fsck));
 382         if (mount_flags & EXT2_MF_READONLY)
 383                 printf("%s", _("(and reboot afterwards!)\n"));
 384 }
 385
 386 /*
 387  * Update the feature set as provided by the user.
 388  */
 389 static int update_feature_set(ext2_filsys fs, char *features)
 390 {
 391         struct ext2_super_block *sb = fs->super;
 392         struct ext2_group_desc *gd;
 393         __u32           old_features[3];
 394         dgrp_t          i;
 395         int             type_err;
 396         unsigned int    mask_err;
 397
 398 #define FEATURE_ON(type, mask) (!(old_features[(type)] & (mask)) && \
 399                                 ((&sb->s_feature_compat)[(type)] & (mask)))
 400 #define FEATURE_OFF(type, mask) ((old_features[(type)] & (mask)) && \
 401                                  !((&sb->s_feature_compat)[(type)] & (mask)))
 402 #define FEATURE_CHANGED(type, mask) ((mask) & \
 403                      (old_features[(type)] ^ (&sb->s_feature_compat)[(type)]))
 404
 405         old_features[E2P_FEATURE_COMPAT] = sb->s_feature_compat;
 406         old_features[E2P_FEATURE_INCOMPAT] = sb->s_feature_incompat;
 407         old_features[E2P_FEATURE_RO_INCOMPAT] = sb->s_feature_ro_compat;
 408
 409         if (e2p_edit_feature2(features, &sb->s_feature_compat,
 410                               ok_features, clear_ok_features,
 411                               &type_err, &mask_err)) {
 412                 if (!mask_err)
 413                         fprintf(stderr,
 414                                 _("Invalid filesystem option set: %s\n"),
 415                                 features);
 416                 else if (type_err & E2P_FEATURE_NEGATE_FLAG)
 417                         fprintf(stderr, _("Clearing filesystem feature '%s' "
 418                                           "not supported.\n"),
 419                                 e2p_feature2string(type_err &
 420                                                    E2P_FEATURE_TYPE_MASK,
 421                                                    mask_err));
 422                 else
 423                         fprintf(stderr, _("Setting filesystem feature '%s' "
 424                                           "not supported.\n"),
 425                                 e2p_feature2string(type_err, mask_err));
 426                 return 1;
 427         }
 428
 429         if (FEATURE_OFF(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
 430                 if ((mount_flags & EXT2_MF_MOUNTED) &&
 431                     !(mount_flags & EXT2_MF_READONLY)) {
 432                         fputs(_("The has_journal feature may only be "
 433                                 "cleared when the filesystem is\n"
 434                                 "unmounted or mounted "
 435                                 "read-only.\n"), stderr);
 436                         return 1;
 437                 }
 438                 if (sb->s_feature_incompat &
 439                     EXT3_FEATURE_INCOMPAT_RECOVER) {
 440                         fputs(_("The needs_recovery flag is set.  "
 441                                 "Please run e2fsck before clearing\n"
 442                                 "the has_journal flag.\n"), stderr);
 443                         return 1;
 444                 }
 445                 if (sb->s_journal_inum) {
 446                         if (remove_journal_inode(fs))
 447                                 return 1;
 448                 }
 449                 if (sb->s_journal_dev) {
 450                         if (remove_journal_device(fs))
 451                                 return 1;
 452                 }
 453         }
 454         if (FEATURE_ON(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) {
 455                 int error;
 456
 457                 if ((mount_flags & EXT2_MF_MOUNTED) ||
 458                     (mount_flags & EXT2_MF_READONLY)) {
 459                         fputs(_("The multiple mount protection feature can't\n"
 460                                 "be set if the filesystem is mounted or\n"
 461                                 "read-only.\n"), stderr);
 462                         return 1;
 463                 }
 464
 465                 error = ext2fs_mmp_init(fs);
 466                 if (error) {
 467                         fputs(_("\nError while enabling multiple mount "
 468                                 "protection feature."), stderr);
 469                         return 1;
 470                 }
 471
 472                 /*
 473                  * We want to update group desc with the new free blocks count
 474                  */
 475                 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
 476
 477                 printf(_("Multiple mount protection has been enabled "
 478                          "with update interval %ds.\n"),
 479                        sb->s_mmp_update_interval);
 480         }
 481
 482         if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) {
 483                 int error;
 484
 485                 if (mount_flags & EXT2_MF_READONLY) {
 486                         fputs(_("The multiple mount protection feature cannot\n"
 487                                 "be disabled if the filesystem is readonly.\n"),
 488                                 stderr);
 489                         return 1;
 490                 }
 491
 492                 error = ext2fs_read_bitmaps(fs);
 493                 if (error) {
 494                         fputs(_("Error while reading bitmaps\n"), stderr);
 495                         return 1;
 496                 }
 497
 498                 error = ext2fs_mmp_read(fs, sb->s_mmp_block, NULL);
 499                 if (error) {
 500                         struct mmp_struct *mmp_cmp = fs->mmp_cmp;
 501
 502                         if (error == EXT2_ET_MMP_MAGIC_INVALID)
 503                                 printf(_("Magic number in MMP block does not "
 504                                          "match. expected: %x, actual: %x\n"),
 505                                          EXT4_MMP_MAGIC, mmp_cmp->mmp_magic);
 506                         else
 507                                 com_err(program_name, error, "%s",
 508                                         _("while reading MMP block."));
 509                         goto mmp_error;
 510                 }
 511
 512                 /* We need to force out the group descriptors as well */
 513                 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
 514                 ext2fs_block_alloc_stats2(fs, sb->s_mmp_block, -1);
 515 mmp_error:
 516                 sb->s_mmp_block = 0;
 517                 sb->s_mmp_update_interval = 0;
 518         }
 519
 520         if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
 521                 /*
 522                  * If adding a journal flag, let the create journal
 523                  * code below handle setting the flag and creating the
 524                  * journal.  We supply a default size if necessary.
 525                  */
 526                 if (!journal_size)
 527                         journal_size = -1;
 528                 sb->s_feature_compat &= ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
 529         }
 530
 531         if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_DIR_INDEX)) {
 532                 if (!sb->s_def_hash_version)
 533                         sb->s_def_hash_version = EXT2_HASH_HALF_MD4;
 534                 if (uuid_is_null((unsigned char *) sb->s_hash_seed))
 535                         uuid_generate((unsigned char *) sb->s_hash_seed);
 536         }
 537
 538         if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_FLEX_BG)) {
 539                 if (ext2fs_check_desc(fs)) {
 540                         fputs(_("Clearing the flex_bg flag would "
 541                                 "cause the the filesystem to be\n"
 542                                 "inconsistent.\n"), stderr);
 543                         return 1;
 544                 }
 545         }
 546
 547         if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
 548                             EXT4_FEATURE_RO_COMPAT_HUGE_FILE)) {
 549                 if ((mount_flags & EXT2_MF_MOUNTED) &&
 550                     !(mount_flags & EXT2_MF_READONLY)) {
 551                         fputs(_("The huge_file feature may only be "
 552                                 "cleared when the filesystem is\n"
 553                                 "unmounted or mounted "
 554                                 "read-only.\n"), stderr);
 555                         return 1;
 556                 }
 557         }
 558
 559         if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
 560                        EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
 561                 for (i = 0; i < fs->group_desc_count; i++) {
 562                         gd = ext2fs_group_desc(fs, fs->group_desc, i);
 563                         gd->bg_itable_unused = 0;
 564                         gd->bg_flags = EXT2_BG_INODE_ZEROED;
 565                         ext2fs_group_desc_csum_set(fs, i);
 566                 }
 567                 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
 568         }
 569
 570         if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
 571                         EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
 572                 for (i = 0; i < fs->group_desc_count; i++) {
 573                         gd = ext2fs_group_desc(fs, fs->group_desc, i);
 574                         if ((gd->bg_flags & EXT2_BG_INODE_ZEROED) == 0) {
 575                                 /*
 576                                  * XXX what we really should do is zap
 577                                  * uninitialized inode tables instead.
 578                                  */
 579                                 request_fsck_afterwards(fs);
 580                                 break;
 581                         }
 582                         gd->bg_itable_unused = 0;
 583                         gd->bg_flags = 0;
 584                         gd->bg_checksum = 0;
 585                 }
 586                 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
 587         }
 588
 589         if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
 590                                 EXT4_FEATURE_RO_COMPAT_QUOTA)) {
 591                 /*
 592                  * Set the Q_flag here and handle the quota options in the code
 593                  * below.
 594                  */
 595                 if (!Q_flag) {
 596                         Q_flag = 1;
 597                         /* Enable both user quota and group quota by default */
 598                         usrquota = QOPT_ENABLE;
 599                         grpquota = QOPT_ENABLE;
 600                 }
 601                 sb->s_feature_ro_compat &= ~EXT4_FEATURE_RO_COMPAT_QUOTA;
 602         }
 603
 604         if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
 605                                 EXT4_FEATURE_RO_COMPAT_QUOTA)) {
 606                 /*
 607                  * Set the Q_flag here and handle the quota options in the code
 608                  * below.
 609                  */
 610                 if (Q_flag)
 611                         fputs(_("\nWarning: '^quota' option overrides '-Q'"
 612                                 "arguments.\n"), stderr);
 613                 Q_flag = 1;
 614                 /* Disable both user quota and group quota by default */
 615                 usrquota = QOPT_DISABLE;
 616                 grpquota = QOPT_DISABLE;
 617         }
 618
 619         if (sb->s_rev_level == EXT2_GOOD_OLD_REV &&
 620             (sb->s_feature_compat || sb->s_feature_ro_compat ||
 621              sb->s_feature_incompat))
 622                 ext2fs_update_dynamic_rev(fs);
 623
 624         if (FEATURE_CHANGED(E2P_FEATURE_RO_INCOMPAT,
 625                             EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) ||
 626             FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
 627                         EXT4_FEATURE_RO_COMPAT_HUGE_FILE) ||
 628             FEATURE_CHANGED(E2P_FEATURE_INCOMPAT,
 629                             EXT2_FEATURE_INCOMPAT_FILETYPE) ||
 630             FEATURE_CHANGED(E2P_FEATURE_COMPAT,
 631                             EXT2_FEATURE_COMPAT_RESIZE_INODE) ||
 632             FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
 633                         EXT2_FEATURE_RO_COMPAT_LARGE_FILE))
 634                 request_fsck_afterwards(fs);
 635
 636         if ((old_features[E2P_FEATURE_COMPAT] != sb->s_feature_compat) ||
 637             (old_features[E2P_FEATURE_INCOMPAT] != sb->s_feature_incompat) ||
 638             (old_features[E2P_FEATURE_RO_INCOMPAT] != sb->s_feature_ro_compat))
 639                 ext2fs_mark_super_dirty(fs);
 640
 641         return 0;
 642 }
 643
 644 /*
 645  * Add a journal to the filesystem.
 646  */
 647 static int add_journal(ext2_filsys fs)
 648 {
 649         unsigned long journal_blocks;
 650         errcode_t       retval;
 651         ext2_filsys     jfs;
 652         io_manager      io_ptr;
 653
 654         if (fs->super->s_feature_compat &
 655             EXT3_FEATURE_COMPAT_HAS_JOURNAL) {
 656                 fputs(_("The filesystem already has a journal.\n"), stderr);
 657                 goto err;
 658         }
 659         if (journal_device) {
 660                 check_plausibility(journal_device);
 661                 check_mount(journal_device, 0, _("journal"));
 662 #ifdef CONFIG_TESTIO_DEBUG
 663                 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
 664                         io_ptr = test_io_manager;
 665                         test_io_backing_manager = unix_io_manager;
 666                 } else
 667 #endif
 668                         io_ptr = unix_io_manager;
 669                 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
 670                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
 671                                      fs->blocksize, io_ptr, &jfs);
 672                 if (retval) {
 673                         com_err(program_name, retval,
 674                                 _("\n\twhile trying to open journal on %s\n"),
 675                                 journal_device);
 676                         goto err;
 677                 }
 678                 printf(_("Creating journal on device %s: "),
 679                        journal_device);
 680                 fflush(stdout);
 681
 682                 retval = ext2fs_add_journal_device(fs, jfs);
 683                 ext2fs_close(jfs);
 684                 if (retval) {
 685                         com_err(program_name, retval,
 686                                 _("while adding filesystem to journal on %s"),
 687                                 journal_device);
 688                         goto err;
 689                 }
 690                 fputs(_("done\n"), stdout);
 691         } else if (journal_size) {
 692                 fputs(_("Creating journal inode: "), stdout);
 693                 fflush(stdout);
 694                 journal_blocks = figure_journal_size(journal_size, fs);
 695
 696                 retval = ext2fs_add_journal_inode(fs, journal_blocks,
 697                                                   journal_flags);
 698                 if (retval) {
 699                         fprintf(stderr, "\n");
 700                         com_err(program_name, retval, "%s",
 701                                 _("\n\twhile trying to create journal file"));
 702                         return retval;
 703                 } else
 704                         fputs(_("done\n"), stdout);
 705                 /*
 706                  * If the filesystem wasn't mounted, we need to force
 707                  * the block group descriptors out.
 708                  */
 709                 if ((mount_flags & EXT2_MF_MOUNTED) == 0)
 710                         fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
 711         }
 712         print_check_message(fs->super->s_max_mnt_count,
 713                             fs->super->s_checkinterval);
 714         return 0;
 715
 716 err:
 717         free(journal_device);
 718         return 1;
 719 }
 720
 721 static void handle_quota_options(ext2_filsys fs)
 722 {
 723         quota_ctx_t qctx;
 724         ext2_ino_t qf_ino;
 725
 726         if (!usrquota && !grpquota)
 727                 /* Nothing to do. */
 728                 return;
 729
 730         quota_init_context(&qctx, fs, -1);
 731
 732         if (usrquota == QOPT_ENABLE || grpquota == QOPT_ENABLE)
 733                 quota_compute_usage(qctx);
 734
 735         if (usrquota == QOPT_ENABLE && !fs->super->s_usr_quota_inum) {
 736                 if ((qf_ino = quota_file_exists(fs, USRQUOTA,
 737                                                 QFMT_VFS_V1)) > 0)
 738                         quota_update_limits(qctx, qf_ino, USRQUOTA);
 739                 quota_write_inode(qctx, USRQUOTA);
 740         } else if (usrquota == QOPT_DISABLE) {
 741                 quota_remove_inode(fs, USRQUOTA);
 742         }
 743
 744         if (grpquota == QOPT_ENABLE && !fs->super->s_grp_quota_inum) {
 745                 if ((qf_ino = quota_file_exists(fs, GRPQUOTA,
 746                                                 QFMT_VFS_V1)) > 0)
 747                         quota_update_limits(qctx, qf_ino, GRPQUOTA);
 748                 quota_write_inode(qctx, GRPQUOTA);
 749         } else if (grpquota == QOPT_DISABLE) {
 750                 quota_remove_inode(fs, GRPQUOTA);
 751         }
 752
 753         quota_release_context(&qctx);
 754
 755         if ((usrquota == QOPT_ENABLE) || (grpquota == QOPT_ENABLE)) {
 756                 fprintf(stderr, "%s", _("\nWarning: the quota feature is still "
 757                                   "under development\n"
 758                                   "See https://ext4.wiki.kernel.org/"
 759                                   "index.php/Quota for more information\n\n"));
 760                 fs->super->s_feature_ro_compat |= EXT4_FEATURE_RO_COMPAT_QUOTA;
 761                 ext2fs_mark_super_dirty(fs);
 762         } else if (!fs->super->s_usr_quota_inum &&
 763                    !fs->super->s_grp_quota_inum) {
 764                 fs->super->s_feature_ro_compat &= ~EXT4_FEATURE_RO_COMPAT_QUOTA;
 765                 ext2fs_mark_super_dirty(fs);
 766         }
 767
 768         return;
 769 }
 770
 771 #ifdef CONFIG_QUOTA
 772 static void parse_quota_opts(const char *opts)
 773 {
 774         char    *buf, *token, *next, *p;
 775         int     len;
 776
 777         len = strlen(opts);
 778         buf = malloc(len+1);
 779         if (!buf) {
 780                 fputs(_("Couldn't allocate memory to parse quota "
 781                         "options!\n"), stderr);
 782                 exit(1);
 783         }
 784         strcpy(buf, opts);
 785         for (token = buf; token && *token; token = next) {
 786                 p = strchr(token, ',');
 787                 next = 0;
 788                 if (p) {
 789                         *p = 0;
 790                         next = p+1;
 791                 }
 792
 793                 if (strcmp(token, "usrquota") == 0) {
 794                         usrquota = QOPT_ENABLE;
 795                 } else if (strcmp(token, "^usrquota") == 0) {
 796                         usrquota = QOPT_DISABLE;
 797                 } else if (strcmp(token, "grpquota") == 0) {
 798                         grpquota = QOPT_ENABLE;
 799                 } else if (strcmp(token, "^grpquota") == 0) {
 800                         grpquota = QOPT_DISABLE;
 801                 } else {
 802                         fputs(_("\nBad quota options specified.\n\n"
 803                                 "Following valid quota options are available "
 804                                 "(pass by separating with comma):\n"
 805                                 "\t[^]usrquota\n"
 806                                 "\t[^]grpquota\n"
 807                                 "\n\n"), stderr);
 808                         free(buf);
 809                         exit(1);
 810                 }
 811         }
 812         free(buf);
 813 }
 814 #endif
 815
 816 static void parse_e2label_options(int argc, char ** argv)
 817 {
 818         if ((argc < 2) || (argc > 3)) {
 819                 fputs(_("Usage: e2label device [newlabel]\n"), stderr);
 820                 exit(1);
 821         }
 822         io_options = strchr(argv[1], '?');
 823         if (io_options)
 824                 *io_options++ = 0;
 825         device_name = blkid_get_devname(NULL, argv[1], NULL);
 826         if (!device_name) {
 827                 com_err("e2label", 0, _("Unable to resolve '%s'"),
 828                         argv[1]);
 829                 exit(1);
 830         }
 831         open_flag = EXT2_FLAG_JOURNAL_DEV_OK;
 832         if (argc == 3) {
 833                 open_flag |= EXT2_FLAG_RW;
 834                 L_flag = 1;
 835                 new_label = argv[2];
 836         } else
 837                 print_label++;
 838 }
 839
 840 static time_t parse_time(char *str)
 841 {
 842         struct  tm      ts;
 843
 844         if (strcmp(str, "now") == 0) {
 845                 return (time(0));
 846         }
 847         memset(&ts, 0, sizeof(ts));
 848 #ifdef HAVE_STRPTIME
 849         strptime(str, "%Y%m%d%H%M%S", &ts);
 850 #else
 851         sscanf(str, "%4d%2d%2d%2d%2d%2d", &ts.tm_year, &ts.tm_mon,
 852                &ts.tm_mday, &ts.tm_hour, &ts.tm_min, &ts.tm_sec);
 853         ts.tm_year -= 1900;
 854         ts.tm_mon -= 1;
 855         if (ts.tm_year < 0 || ts.tm_mon < 0 || ts.tm_mon > 11 ||
 856             ts.tm_mday < 0 || ts.tm_mday > 31 || ts.tm_hour > 23 ||
 857             ts.tm_min > 59 || ts.tm_sec > 61)
 858                 ts.tm_mday = 0;
 859 #endif
 860         if (ts.tm_mday == 0) {
 861                 com_err(program_name, 0,
 862                         _("Couldn't parse date/time specifier: %s"),
 863                         str);
 864                 usage();
 865         }
 866         ts.tm_isdst = -1;
 867         return (mktime(&ts));
 868 }
 869
 870 static void parse_tune2fs_options(int argc, char **argv)
 871 {
 872         int c;
 873         char *tmp;
 874         struct group *gr;
 875         struct passwd *pw;
 876         char optstring[100] = "c:e:fg:i:jlm:o:r:s:u:C:E:I:J:L:M:O:T:U:";
 877
 878 #ifdef CONFIG_QUOTA
 879         strcat(optstring, "Q:");
 880 #endif
 881         open_flag = 0;
 882
 883         printf("tune2fs %s (%s)\n", E2FSPROGS_VERSION, E2FSPROGS_DATE);
 884         while ((c = getopt(argc, argv, optstring)) != EOF)
 885                 switch (c) {
 886                 case 'c':
 887                         max_mount_count = strtol(optarg, &tmp, 0);
 888                         if (*tmp || max_mount_count > 16000) {
 889                                 com_err(program_name, 0,
 890                                         _("bad mounts count - %s"),
 891                                         optarg);
 892                                 usage();
 893                         }
 894                         if (max_mount_count == 0)
 895                                 max_mount_count = -1;
 896                         c_flag = 1;
 897                         open_flag = EXT2_FLAG_RW;
 898                         break;
 899                 case 'C':
 900                         mount_count = strtoul(optarg, &tmp, 0);
 901                         if (*tmp || mount_count > 16000) {
 902                                 com_err(program_name, 0,
 903                                         _("bad mounts count - %s"),
 904                                         optarg);
 905                                 usage();
 906                         }
 907                         C_flag = 1;
 908                         open_flag = EXT2_FLAG_RW;
 909                         break;
 910                 case 'e':
 911                         if (strcmp(optarg, "continue") == 0)
 912                                 errors = EXT2_ERRORS_CONTINUE;
 913                         else if (strcmp(optarg, "remount-ro") == 0)
 914                                 errors = EXT2_ERRORS_RO;
 915                         else if (strcmp(optarg, "panic") == 0)
 916                                 errors = EXT2_ERRORS_PANIC;
 917                         else {
 918                                 com_err(program_name, 0,
 919                                         _("bad error behavior - %s"),
 920                                         optarg);
 921                                 usage();
 922                         }
 923                         e_flag = 1;
 924                         open_flag = EXT2_FLAG_RW;
 925                         break;
 926                 case 'E':
 927                         extended_cmd = optarg;
 928                         open_flag |= EXT2_FLAG_RW;
 929                         break;
 930                 case 'f': /* Force */
 931                         f_flag = 1;
 932                         break;
 933                 case 'g':
 934                         resgid = strtoul(optarg, &tmp, 0);
 935                         if (*tmp) {
 936                                 gr = getgrnam(optarg);
 937                                 if (gr == NULL)
 938                                         tmp = optarg;
 939                                 else {
 940                                         resgid = gr->gr_gid;
 941                                         *tmp = 0;
 942                                 }
 943                         }
 944                         if (*tmp) {
 945                                 com_err(program_name, 0,
 946                                         _("bad gid/group name - %s"),
 947                                         optarg);
 948                                 usage();
 949                         }
 950                         g_flag = 1;
 951                         open_flag = EXT2_FLAG_RW;
 952                         break;
 953                 case 'i':
 954                         interval = strtoul(optarg, &tmp, 0);
 955                         switch (*tmp) {
 956                         case 's':
 957                                 tmp++;
 958                                 break;
 959                         case '\0':
 960                         case 'd':
 961                         case 'D': /* days */
 962                                 interval *= 86400;
 963                                 if (*tmp != '\0')
 964                                         tmp++;
 965                                 break;
 966                         case 'm':
 967                         case 'M': /* months! */
 968                                 interval *= 86400 * 30;
 969                                 tmp++;
 970                                 break;
 971                         case 'w':
 972                         case 'W': /* weeks */
 973                                 interval *= 86400 * 7;
 974                                 tmp++;
 975                                 break;
 976                         }
 977                         if (*tmp) {
 978                                 com_err(program_name, 0,
 979                                         _("bad interval - %s"), optarg);
 980                                 usage();
 981                         }
 982                         i_flag = 1;
 983                         open_flag = EXT2_FLAG_RW;
 984                         break;
 985                 case 'j':
 986                         if (!journal_size)
 987                                 journal_size = -1;
 988                         open_flag = EXT2_FLAG_RW;
 989                         break;
 990                 case 'J':
 991                         parse_journal_opts(optarg);
 992                         open_flag = EXT2_FLAG_RW;
 993                         break;
 994                 case 'l':
 995                         l_flag = 1;
 996                         break;
 997                 case 'L':
 998                         new_label = optarg;
 999                         L_flag = 1;
1000                         open_flag |= EXT2_FLAG_RW |
1001                                 EXT2_FLAG_JOURNAL_DEV_OK;
1002                         break;
1003                 case 'm':
1004                         reserved_ratio = strtod(optarg, &tmp);
1005                         if (*tmp || reserved_ratio > 50 ||
1006                             reserved_ratio < 0) {
1007                                 com_err(program_name, 0,
1008                                         _("bad reserved block ratio - %s"),
1009                                         optarg);
1010                                 usage();
1011                         }
1012                         m_flag = 1;
1013                         open_flag = EXT2_FLAG_RW;
1014                         break;
1015                 case 'M':
1016                         new_last_mounted = optarg;
1017                         M_flag = 1;
1018                         open_flag = EXT2_FLAG_RW;
1019                         break;
1020                 case 'o':
1021                         if (mntopts_cmd) {
1022                                 com_err(program_name, 0, "%s",
1023                                         _("-o may only be specified once"));
1024                                 usage();
1025                         }
1026                         mntopts_cmd = optarg;
1027                         open_flag = EXT2_FLAG_RW;
1028                         break;
1029                 case 'O':
1030                         if (features_cmd) {
1031                                 com_err(program_name, 0, "%s",
1032                                         _("-O may only be specified once"));
1033                                 usage();
1034                         }
1035                         features_cmd = optarg;
1036                         open_flag = EXT2_FLAG_RW;
1037                         break;
1038 #ifdef CONFIG_QUOTA
1039                 case 'Q':
1040                         Q_flag = 1;
1041                         parse_quota_opts(optarg);
1042                         open_flag = EXT2_FLAG_RW;
1043                         break;
1044 #endif
1045                 case 'r':
1046                         reserved_blocks = strtoul(optarg, &tmp, 0);
1047                         if (*tmp) {
1048                                 com_err(program_name, 0,
1049                                         _("bad reserved blocks count - %s"),
1050                                         optarg);
1051                                 usage();
1052                         }
1053                         r_flag = 1;
1054                         open_flag = EXT2_FLAG_RW;
1055                         break;
1056                 case 's': /* Deprecated */
1057                         s_flag = atoi(optarg);
1058                         open_flag = EXT2_FLAG_RW;
1059                         break;
1060                 case 'T':
1061                         T_flag = 1;
1062                         last_check_time = parse_time(optarg);
1063                         open_flag = EXT2_FLAG_RW;
1064                         break;
1065                 case 'u':
1066                                 resuid = strtoul(optarg, &tmp, 0);
1067                                 if (*tmp) {
1068                                         pw = getpwnam(optarg);
1069                                         if (pw == NULL)
1070                                                 tmp = optarg;
1071                                         else {
1072                                                 resuid = pw->pw_uid;
1073                                                 *tmp = 0;
1074                                         }
1075                                 }
1076                                 if (*tmp) {
1077                                         com_err(program_name, 0,
1078                                                 _("bad uid/user name - %s"),
1079                                                 optarg);
1080                                         usage();
1081                                 }
1082                                 u_flag = 1;
1083                                 open_flag = EXT2_FLAG_RW;
1084                                 break;
1085                 case 'U':
1086                         new_UUID = optarg;
1087                         U_flag = 1;
1088                         open_flag = EXT2_FLAG_RW |
1089                                 EXT2_FLAG_JOURNAL_DEV_OK;
1090                         break;
1091                 case 'I':
1092                         new_inode_size = strtoul(optarg, &tmp, 0);
1093                         if (*tmp) {
1094                                 com_err(program_name, 0,
1095                                         _("bad inode size - %s"),
1096                                         optarg);
1097                                 usage();
1098                         }
1099                         if (!((new_inode_size &
1100                                (new_inode_size - 1)) == 0)) {
1101                                 com_err(program_name, 0,
1102                                         _("Inode size must be a "
1103                                           "power of two- %s"),
1104                                         optarg);
1105                                 usage();
1106                         }
1107                         open_flag = EXT2_FLAG_RW;
1108                         I_flag = 1;
1109                         break;
1110                 default:
1111                         usage();
1112                 }
1113         if (optind < argc - 1 || optind == argc)
1114                 usage();
1115         if (!open_flag && !l_flag)
1116                 usage();
1117         io_options = strchr(argv[optind], '?');
1118         if (io_options)
1119                 *io_options++ = 0;
1120         device_name = blkid_get_devname(NULL, argv[optind], NULL);
1121         if (!device_name) {
1122                 com_err(program_name, 0, _("Unable to resolve '%s'"),
1123                         argv[optind]);
1124                 exit(1);
1125         }
1126 }
1127
1128 #ifdef CONFIG_BUILD_FINDFS
1129 void do_findfs(int argc, char **argv)
1130 {
1131         char    *dev;
1132
1133         if ((argc != 2) ||
1134             (strncmp(argv[1], "LABEL=", 6) && strncmp(argv[1], "UUID=", 5))) {
1135                 fprintf(stderr, "Usage: findfs LABEL=<label>|UUID=<uuid>\n");
1136                 exit(2);
1137         }
1138         dev = blkid_get_devname(NULL, argv[1], NULL);
1139         if (!dev) {
1140                 com_err("findfs", 0, _("Unable to resolve '%s'"),
1141                         argv[1]);
1142                 exit(1);
1143         }
1144         puts(dev);
1145         exit(0);
1146 }
1147 #endif
1148
1149 static int parse_extended_opts(ext2_filsys fs, const char *opts)
1150 {
1151         char    *buf, *token, *next, *p, *arg;
1152         int     len, hash_alg;
1153         int     r_usage = 0;
1154
1155         len = strlen(opts);
1156         buf = malloc(len+1);
1157         if (!buf) {
1158                 fprintf(stderr, "%s",
1159                         _("Couldn't allocate memory to parse options!\n"));
1160                 return 1;
1161         }
1162         strcpy(buf, opts);
1163         for (token = buf; token && *token; token = next) {
1164                 p = strchr(token, ',');
1165                 next = 0;
1166                 if (p) {
1167                         *p = 0;
1168                         next = p+1;
1169                 }
1170                 arg = strchr(token, '=');
1171                 if (arg) {
1172                         *arg = 0;
1173                         arg++;
1174                 }
1175                 if (strcmp(token, "clear-mmp") == 0 ||
1176                     strcmp(token, "clear_mmp") == 0) {
1177                         clear_mmp = 1;
1178                 } else if (strcmp(token, "mmp_update_interval") == 0) {
1179                         unsigned long intv;
1180                         if (!arg) {
1181                                 r_usage++;
1182                                 continue;
1183                         }
1184                         intv = strtoul(arg, &p, 0);
1185                         if (*p) {
1186                                 fprintf(stderr,
1187                                         _("Invalid mmp_update_interval: %s\n"),
1188                                         arg);
1189                                 r_usage++;
1190                                 continue;
1191                         }
1192                         if (intv == 0) {
1193                                 intv = EXT4_MMP_UPDATE_INTERVAL;
1194                         } else if (intv > EXT4_MMP_MAX_UPDATE_INTERVAL) {
1195                                 fprintf(stderr,
1196                                         _("mmp_update_interval too big: %lu\n"),
1197                                         intv);
1198                                 r_usage++;
1199                                 continue;
1200                         }
1201                         printf(P_("Setting multiple mount protection update "
1202                                   "interval to %lu second\n",
1203                                   "Setting multiple mount protection update "
1204                                   "interval to %lu seconds\n", intv),
1205                                intv);
1206                         fs->super->s_mmp_update_interval = intv;
1207                         ext2fs_mark_super_dirty(fs);
1208                 } else if (!strcmp(token, "test_fs")) {
1209                         fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
1210                         printf("Setting test filesystem flag\n");
1211                         ext2fs_mark_super_dirty(fs);
1212                 } else if (!strcmp(token, "^test_fs")) {
1213                         fs->super->s_flags &= ~EXT2_FLAGS_TEST_FILESYS;
1214                         printf("Clearing test filesystem flag\n");
1215                         ext2fs_mark_super_dirty(fs);
1216                 } else if (strcmp(token, "stride") == 0) {
1217                         if (!arg) {
1218                                 r_usage++;
1219                                 continue;
1220                         }
1221                         stride = strtoul(arg, &p, 0);
1222                         if (*p) {
1223                                 fprintf(stderr,
1224                                         _("Invalid RAID stride: %s\n"),
1225                                         arg);
1226                                 r_usage++;
1227                                 continue;
1228                         }
1229                         stride_set = 1;
1230                 } else if (strcmp(token, "stripe-width") == 0 ||
1231                            strcmp(token, "stripe_width") == 0) {
1232                         if (!arg) {
1233                                 r_usage++;
1234                                 continue;
1235                         }
1236                         stripe_width = strtoul(arg, &p, 0);
1237                         if (*p) {
1238                                 fprintf(stderr,
1239                                         _("Invalid RAID stripe-width: %s\n"),
1240                                         arg);
1241                                 r_usage++;
1242                                 continue;
1243                         }
1244                         stripe_width_set = 1;
1245                 } else if (strcmp(token, "hash_alg") == 0 ||
1246                            strcmp(token, "hash-alg") == 0) {
1247                         if (!arg) {
1248                                 r_usage++;
1249                                 continue;
1250                         }
1251                         hash_alg = e2p_string2hash(arg);
1252                         if (hash_alg < 0) {
1253                                 fprintf(stderr,
1254                                         _("Invalid hash algorithm: %s\n"),
1255                                         arg);
1256                                 r_usage++;
1257                                 continue;
1258                         }
1259                         fs->super->s_def_hash_version = hash_alg;
1260                         printf(_("Setting default hash algorithm "
1261                                  "to %s (%d)\n"),
1262                                arg, hash_alg);
1263                         ext2fs_mark_super_dirty(fs);
1264                 } else if (!strcmp(token, "mount_opts")) {
1265                         if (!arg) {
1266                                 r_usage++;
1267                                 continue;
1268                         }
1269                         if (strlen(arg) >= sizeof(fs->super->s_mount_opts)) {
1270                                 fprintf(stderr,
1271                                         "Extended mount options too long\n");
1272                                 continue;
1273                         }
1274                         ext_mount_opts = strdup(arg);
1275                 } else
1276                         r_usage++;
1277         }
1278         if (r_usage) {
1279                 fprintf(stderr, "%s", _("\nBad options specified.\n\n"
1280                         "Extended options are separated by commas, "
1281                         "and may take an argument which\n"
1282                         "\tis set off by an equals ('=') sign.\n\n"
1283                         "Valid extended options are:\n"
1284                         "\tclear_mmp\n"
1285                         "\thash_alg=<hash algorithm>\n"
1286                         "\tmount_opts=<extended default mount options>\n"
1287                         "\tstride=<RAID per-disk chunk size in blocks>\n"
1288                         "\tstripe_width=<RAID stride*data disks in blocks>\n"
1289                         "\ttest_fs\n"
1290                         "\t^test_fs\n"));
1291                 free(buf);
1292                 return 1;
1293         }
1294         free(buf);
1295
1296         return 0;
1297 }
1298
1299 /*
1300  * Fill in the block bitmap bmap with the information regarding the
1301  * blocks to be moved
1302  */
1303 static int get_move_bitmaps(ext2_filsys fs, int new_ino_blks_per_grp,
1304                             ext2fs_block_bitmap bmap)
1305 {
1306         dgrp_t i;
1307         int retval;
1308         ext2_badblocks_list bb_list = 0;
1309         blk64_t j, needed_blocks = 0;
1310         blk64_t start_blk, end_blk;
1311
1312         retval = ext2fs_read_bb_inode(fs, &bb_list);
1313         if (retval)
1314                 return retval;
1315
1316         for (i = 0; i < fs->group_desc_count; i++) {
1317                 start_blk = ext2fs_inode_table_loc(fs, i) +
1318                                         fs->inode_blocks_per_group;
1319
1320                 end_blk = ext2fs_inode_table_loc(fs, i) +
1321                                         new_ino_blks_per_grp;
1322
1323                 for (j = start_blk; j < end_blk; j++) {
1324                         if (ext2fs_test_block_bitmap2(fs->block_map, j)) {
1325                                 /*
1326                                  * IF the block is a bad block we fail
1327                                  */
1328                                 if (ext2fs_badblocks_list_test(bb_list, j)) {
1329                                         ext2fs_badblocks_list_free(bb_list);
1330                                         return ENOSPC;
1331                                 }
1332
1333                                 ext2fs_mark_block_bitmap2(bmap, j);
1334                         } else {
1335                                 /*
1336                                  * We are going to use this block for
1337                                  * inode table. So mark them used.
1338                                  */
1339                                 ext2fs_mark_block_bitmap2(fs->block_map, j);
1340                         }
1341                 }
1342                 needed_blocks += end_blk - start_blk;
1343         }
1344
1345         ext2fs_badblocks_list_free(bb_list);
1346         if (needed_blocks > ext2fs_free_blocks_count(fs->super))
1347                 return ENOSPC;
1348
1349         return 0;
1350 }
1351
1352 static int ext2fs_is_meta_block(ext2_filsys fs, blk64_t blk)
1353 {
1354         dgrp_t group;
1355         group = ext2fs_group_of_blk2(fs, blk);
1356         if (ext2fs_block_bitmap_loc(fs, group) == blk)
1357                 return 1;
1358         if (ext2fs_inode_bitmap_loc(fs, group) == blk)
1359                 return 1;
1360         return 0;
1361 }
1362
1363 static int ext2fs_is_block_in_group(ext2_filsys fs, dgrp_t group, blk64_t blk)
1364 {
1365         blk64_t start_blk, end_blk;
1366         start_blk = fs->super->s_first_data_block +
1367                         EXT2_BLOCKS_PER_GROUP(fs->super) * group;
1368         /*
1369          * We cannot get new block beyond end_blk for for the last block group
1370          * so we can check with EXT2_BLOCKS_PER_GROUP even for last block group
1371          */
1372         end_blk   = start_blk + EXT2_BLOCKS_PER_GROUP(fs->super);
1373         if (blk >= start_blk && blk <= end_blk)
1374                 return 1;
1375         return 0;
1376 }
1377
1378 static int move_block(ext2_filsys fs, ext2fs_block_bitmap bmap)
1379 {
1380
1381         char *buf;
1382         dgrp_t group = 0;
1383         errcode_t retval;
1384         int meta_data = 0;
1385         blk64_t blk, new_blk, goal;
1386         struct blk_move *bmv;
1387
1388         retval = ext2fs_get_mem(fs->blocksize, &buf);
1389         if (retval)
1390                 return retval;
1391
1392         for (new_blk = blk = fs->super->s_first_data_block;
1393              blk < ext2fs_blocks_count(fs->super); blk++) {
1394                 if (!ext2fs_test_block_bitmap2(bmap, blk))
1395                         continue;
1396
1397                 if (ext2fs_is_meta_block(fs, blk)) {
1398                         /*
1399                          * If the block is mapping a fs meta data block
1400                          * like group desc/block bitmap/inode bitmap. We
1401                          * should find a block in the same group and fix
1402                          * the respective fs metadata pointers. Otherwise
1403                          * fail
1404                          */
1405                         group = ext2fs_group_of_blk2(fs, blk);
1406                         goal = ext2fs_group_first_block2(fs, group);
1407                         meta_data = 1;
1408
1409                 } else {
1410                         goal = new_blk;
1411                 }
1412                 retval = ext2fs_new_block2(fs, goal, NULL, &new_blk);
1413                 if (retval)
1414                         goto err_out;
1415
1416                 /* new fs meta data block should be in the same group */
1417                 if (meta_data && !ext2fs_is_block_in_group(fs, group, new_blk)) {
1418                         retval = ENOSPC;
1419                         goto err_out;
1420                 }
1421
1422                 /* Mark this block as allocated */
1423                 ext2fs_mark_block_bitmap2(fs->block_map, new_blk);
1424
1425                 /* Add it to block move list */
1426                 retval = ext2fs_get_mem(sizeof(struct blk_move), &bmv);
1427                 if (retval)
1428                         goto err_out;
1429
1430                 bmv->old_loc = blk;
1431                 bmv->new_loc = new_blk;
1432
1433                 list_add(&(bmv->list), &blk_move_list);
1434
1435                 retval = io_channel_read_blk64(fs->io, blk, 1, buf);
1436                 if (retval)
1437                         goto err_out;
1438
1439                 retval = io_channel_write_blk64(fs->io, new_blk, 1, buf);
1440                 if (retval)
1441                         goto err_out;
1442         }
1443
1444 err_out:
1445         ext2fs_free_mem(&buf);
1446         return retval;
1447 }
1448
1449 static blk64_t translate_block(blk64_t blk)
1450 {
1451         struct list_head *entry;
1452         struct blk_move *bmv;
1453
1454         list_for_each(entry, &blk_move_list) {
1455                 bmv = list_entry(entry, struct blk_move, list);
1456                 if (bmv->old_loc == blk)
1457                         return bmv->new_loc;
1458         }
1459
1460         return 0;
1461 }
1462
1463 static int process_block(ext2_filsys fs EXT2FS_ATTR((unused)),
1464                          blk64_t *block_nr,
1465                          e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1466                          blk64_t ref_block EXT2FS_ATTR((unused)),
1467                          int ref_offset EXT2FS_ATTR((unused)),
1468                          void *priv_data)
1469 {
1470         int ret = 0;
1471         blk64_t new_blk;
1472         ext2fs_block_bitmap bmap = (ext2fs_block_bitmap) priv_data;
1473
1474         if (!ext2fs_test_block_bitmap2(bmap, *block_nr))
1475                 return 0;
1476         new_blk = translate_block(*block_nr);
1477         if (new_blk) {
1478                 *block_nr = new_blk;
1479                 /*
1480                  * This will force the ext2fs_write_inode in the iterator
1481                  */
1482                 ret |= BLOCK_CHANGED;
1483         }
1484
1485         return ret;
1486 }
1487
1488 static int inode_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap)
1489 {
1490         errcode_t retval = 0;
1491         ext2_ino_t ino;
1492         blk64_t blk;
1493         char *block_buf = 0;
1494         struct ext2_inode inode;
1495         ext2_inode_scan scan = NULL;
1496
1497         retval = ext2fs_get_mem(fs->blocksize * 3, &block_buf);
1498         if (retval)
1499                 return retval;
1500
1501         retval = ext2fs_open_inode_scan(fs, 0, &scan);
1502         if (retval)
1503                 goto err_out;
1504
1505         while (1) {
1506                 retval = ext2fs_get_next_inode(scan, &ino, &inode);
1507                 if (retval)
1508                         goto err_out;
1509
1510                 if (!ino)
1511                         break;
1512
1513                 if (inode.i_links_count == 0)
1514                         continue; /* inode not in use */
1515
1516                 /* FIXME!!
1517                  * If we end up modifying the journal inode
1518                  * the sb->s_jnl_blocks will differ. But a
1519                  * subsequent e2fsck fixes that.
1520                  * Do we need to fix this ??
1521                  */
1522
1523                 if (ext2fs_file_acl_block(fs, &inode) &&
1524                     ext2fs_test_block_bitmap2(bmap,
1525                                         ext2fs_file_acl_block(fs, &inode))) {
1526                         blk = translate_block(ext2fs_file_acl_block(fs,
1527                                                                     &inode));
1528                         if (!blk)
1529                                 continue;
1530
1531                         ext2fs_file_acl_block_set(fs, &inode, blk);
1532
1533                         /*
1534                          * Write the inode to disk so that inode table
1535                          * resizing can work
1536                          */
1537                         retval = ext2fs_write_inode(fs, ino, &inode);
1538                         if (retval)
1539                                 goto err_out;
1540                 }
1541
1542                 if (!ext2fs_inode_has_valid_blocks2(fs, &inode))
1543                         continue;
1544
1545                 retval = ext2fs_block_iterate3(fs, ino, 0, block_buf,
1546                                                process_block, bmap);
1547                 if (retval)
1548                         goto err_out;
1549
1550         }
1551
1552 err_out:
1553         ext2fs_free_mem(&block_buf);
1554
1555         return retval;
1556 }
1557
1558 /*
1559  * We need to scan for inode and block bitmaps that may need to be
1560  * moved.  This can take place if the filesystem was formatted for
1561  * RAID arrays using the mke2fs's extended option "stride".
1562  */
1563 static int group_desc_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap)
1564 {
1565         dgrp_t i;
1566         blk64_t blk, new_blk;
1567
1568         for (i = 0; i < fs->group_desc_count; i++) {
1569                 blk = ext2fs_block_bitmap_loc(fs, i);
1570                 if (ext2fs_test_block_bitmap2(bmap, blk)) {
1571                         new_blk = translate_block(blk);
1572                         if (!new_blk)
1573                                 continue;
1574                         ext2fs_block_bitmap_loc_set(fs, i, new_blk);
1575                 }
1576
1577                 blk = ext2fs_inode_bitmap_loc(fs, i);
1578                 if (ext2fs_test_block_bitmap2(bmap, blk)) {
1579                         new_blk = translate_block(blk);
1580                         if (!new_blk)
1581                                 continue;
1582                         ext2fs_inode_bitmap_loc_set(fs, i, new_blk);
1583                 }
1584         }
1585         return 0;
1586 }
1587
1588 static int expand_inode_table(ext2_filsys fs, unsigned long new_ino_size)
1589 {
1590         dgrp_t i;
1591         blk64_t blk;
1592         errcode_t retval;
1593         int new_ino_blks_per_grp;
1594         unsigned int j;
1595         char *old_itable = NULL, *new_itable = NULL;
1596         char *tmp_old_itable = NULL, *tmp_new_itable = NULL;
1597         unsigned long old_ino_size;
1598         int old_itable_size, new_itable_size;
1599
1600         old_itable_size = fs->inode_blocks_per_group * fs->blocksize;
1601         old_ino_size = EXT2_INODE_SIZE(fs->super);
1602
1603         new_ino_blks_per_grp = ext2fs_div_ceil(
1604                                         EXT2_INODES_PER_GROUP(fs->super) *
1605                                         new_ino_size,
1606                                         fs->blocksize);
1607
1608         new_itable_size = new_ino_blks_per_grp * fs->blocksize;
1609
1610         retval = ext2fs_get_mem(old_itable_size, &old_itable);
1611         if (retval)
1612                 return retval;
1613
1614         retval = ext2fs_get_mem(new_itable_size, &new_itable);
1615         if (retval)
1616                 goto err_out;
1617
1618         tmp_old_itable = old_itable;
1619         tmp_new_itable = new_itable;
1620
1621         for (i = 0; i < fs->group_desc_count; i++) {
1622                 blk = ext2fs_inode_table_loc(fs, i);
1623                 retval = io_channel_read_blk64(fs->io, blk,
1624                                 fs->inode_blocks_per_group, old_itable);
1625                 if (retval)
1626                         goto err_out;
1627
1628                 for (j = 0; j < EXT2_INODES_PER_GROUP(fs->super); j++) {
1629                         memcpy(new_itable, old_itable, old_ino_size);
1630
1631                         memset(new_itable+old_ino_size, 0,
1632                                         new_ino_size - old_ino_size);
1633
1634                         new_itable += new_ino_size;
1635                         old_itable += old_ino_size;
1636                 }
1637
1638                 /* reset the pointer */
1639                 old_itable = tmp_old_itable;
1640                 new_itable = tmp_new_itable;
1641
1642                 retval = io_channel_write_blk64(fs->io, blk,
1643                                         new_ino_blks_per_grp, new_itable);
1644                 if (retval)
1645                         goto err_out;
1646         }
1647
1648         /* Update the meta data */
1649         fs->inode_blocks_per_group = new_ino_blks_per_grp;
1650         fs->super->s_inode_size = new_ino_size;
1651
1652 err_out:
1653         if (old_itable)
1654                 ext2fs_free_mem(&old_itable);
1655
1656         if (new_itable)
1657                 ext2fs_free_mem(&new_itable);
1658
1659         return retval;
1660 }
1661
1662 static errcode_t ext2fs_calculate_summary_stats(ext2_filsys fs)
1663 {
1664         blk64_t         blk;
1665         ext2_ino_t      ino;
1666         unsigned int    group = 0;
1667         unsigned int    count = 0;
1668         int             total_free = 0;
1669         int             group_free = 0;
1670
1671         /*
1672          * First calculate the block statistics
1673          */
1674         for (blk = fs->super->s_first_data_block;
1675              blk < ext2fs_blocks_count(fs->super); blk++) {
1676                 if (!ext2fs_fast_test_block_bitmap2(fs->block_map, blk)) {
1677                         group_free++;
1678                         total_free++;
1679                 }
1680                 count++;
1681                 if ((count == fs->super->s_blocks_per_group) ||
1682                     (blk == ext2fs_blocks_count(fs->super)-1)) {
1683                         ext2fs_bg_free_blocks_count_set(fs, group++,
1684                                                         group_free);
1685                         count = 0;
1686                         group_free = 0;
1687                 }
1688         }
1689         total_free = EXT2FS_C2B(fs, total_free);
1690         ext2fs_free_blocks_count_set(fs->super, total_free);
1691
1692         /*
1693          * Next, calculate the inode statistics
1694          */
1695         group_free = 0;
1696         total_free = 0;
1697         count = 0;
1698         group = 0;
1699
1700         /* Protect loop from wrap-around if s_inodes_count maxed */
1701         for (ino = 1; ino <= fs->super->s_inodes_count && ino > 0; ino++) {
1702                 if (!ext2fs_fast_test_inode_bitmap2(fs->inode_map, ino)) {
1703                         group_free++;
1704                         total_free++;
1705                 }
1706                 count++;
1707                 if ((count == fs->super->s_inodes_per_group) ||
1708                     (ino == fs->super->s_inodes_count)) {
1709                         ext2fs_bg_free_inodes_count_set(fs, group++,
1710                                                         group_free);
1711                         count = 0;
1712                         group_free = 0;
1713                 }
1714         }
1715         fs->super->s_free_inodes_count = total_free;
1716         ext2fs_mark_super_dirty(fs);
1717         return 0;
1718 }
1719
1720 #define list_for_each_safe(pos, pnext, head) \
1721         for (pos = (head)->next, pnext = pos->next; pos != (head); \
1722              pos = pnext, pnext = pos->next)
1723
1724 static void free_blk_move_list(void)
1725 {
1726         struct list_head *entry, *tmp;
1727         struct blk_move *bmv;
1728
1729         list_for_each_safe(entry, tmp, &blk_move_list) {
1730                 bmv = list_entry(entry, struct blk_move, list);
1731                 list_del(entry);
1732                 ext2fs_free_mem(&bmv);
1733         }
1734         return;
1735 }
1736
1737 static int resize_inode(ext2_filsys fs, unsigned long new_size)
1738 {
1739         errcode_t retval;
1740         int new_ino_blks_per_grp;
1741         ext2fs_block_bitmap bmap;
1742
1743         retval = ext2fs_read_inode_bitmap(fs);
1744         if (retval) {
1745                 fputs(_("Failed to read inode bitmap\n"), stderr);
1746                 return retval;
1747         }
1748         retval = ext2fs_read_block_bitmap(fs);
1749         if (retval) {
1750                 fputs(_("Failed to read block bitmap\n"), stderr);
1751                 return retval;
1752         }
1753         INIT_LIST_HEAD(&blk_move_list);
1754
1755
1756         new_ino_blks_per_grp = ext2fs_div_ceil(
1757                                         EXT2_INODES_PER_GROUP(fs->super)*
1758                                         new_size,
1759                                         fs->blocksize);
1760
1761         /* We may change the file system.
1762          * Mark the file system as invalid so that
1763          * the user is prompted to run fsck.
1764          */
1765         fs->super->s_state &= ~EXT2_VALID_FS;
1766
1767         retval = ext2fs_allocate_block_bitmap(fs, _("blocks to be moved"),
1768                                                 &bmap);
1769         if (retval) {
1770                 fputs(_("Failed to allocate block bitmap when "
1771                                 "increasing inode size\n"), stderr);
1772                 return retval;
1773         }
1774         retval = get_move_bitmaps(fs, new_ino_blks_per_grp, bmap);
1775         if (retval) {
1776                 fputs(_("Not enough space to increase inode size \n"), stderr);
1777                 goto err_out;
1778         }
1779         retval = move_block(fs, bmap);
1780         if (retval) {
1781                 fputs(_("Failed to relocate blocks during inode resize \n"),
1782                       stderr);
1783                 goto err_out;
1784         }
1785         retval = inode_scan_and_fix(fs, bmap);
1786         if (retval)
1787                 goto err_out_undo;
1788
1789         retval = group_desc_scan_and_fix(fs, bmap);
1790         if (retval)
1791                 goto err_out_undo;
1792
1793         retval = expand_inode_table(fs, new_size);
1794         if (retval)
1795                 goto err_out_undo;
1796
1797         ext2fs_calculate_summary_stats(fs);
1798
1799         fs->super->s_state |= EXT2_VALID_FS;
1800         /* mark super block and block bitmap as dirty */
1801         ext2fs_mark_super_dirty(fs);
1802         ext2fs_mark_bb_dirty(fs);
1803
1804 err_out:
1805         free_blk_move_list();
1806         ext2fs_free_block_bitmap(bmap);
1807
1808         return retval;
1809
1810 err_out_undo:
1811         free_blk_move_list();
1812         ext2fs_free_block_bitmap(bmap);
1813         fputs(_("Error in resizing the inode size.\n"
1814                         "Run e2undo to undo the "
1815                         "file system changes. \n"), stderr);
1816
1817         return retval;
1818 }
1819
1820 static int tune2fs_setup_tdb(const char *name, io_manager *io_ptr)
1821 {
1822         errcode_t retval = 0;
1823         const char *tdb_dir;
1824         char *tdb_file;
1825         char *dev_name, *tmp_name;
1826
1827 #if 0 /* FIXME!! */
1828         /*
1829          * Configuration via a conf file would be
1830          * nice
1831          */
1832         profile_get_string(profile, "scratch_files",
1833                                         "directory", 0, 0,
1834                                         &tdb_dir);
1835 #endif
1836         tmp_name = strdup(name);
1837         if (!tmp_name) {
1838         alloc_fn_fail:
1839                 com_err(program_name, ENOMEM, "%s",
1840                         _("Couldn't allocate memory for tdb filename\n"));
1841                 return ENOMEM;
1842         }
1843         dev_name = basename(tmp_name);
1844
1845         tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
1846         if (!tdb_dir)
1847                 tdb_dir = "/var/lib/e2fsprogs";
1848
1849         if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
1850             access(tdb_dir, W_OK))
1851                 return 0;
1852
1853         tdb_file = malloc(strlen(tdb_dir) + 9 + strlen(dev_name) + 7 + 1);
1854         if (!tdb_file)
1855                 goto alloc_fn_fail;
1856         sprintf(tdb_file, "%s/tune2fs-%s.e2undo", tdb_dir, dev_name);
1857
1858         if (!access(tdb_file, F_OK)) {
1859                 if (unlink(tdb_file) < 0) {
1860                         retval = errno;
1861                         com_err(program_name, retval,
1862                                 _("while trying to delete %s"),
1863                                 tdb_file);
1864                         free(tdb_file);
1865                         return retval;
1866                 }
1867         }
1868
1869         set_undo_io_backing_manager(*io_ptr);
1870         *io_ptr = undo_io_manager;
1871         set_undo_io_backup_file(tdb_file);
1872         printf(_("To undo the tune2fs operation please run "
1873                  "the command\n    e2undo %s %s\n\n"),
1874                  tdb_file, name);
1875         free(tdb_file);
1876         free(tmp_name);
1877         return retval;
1878 }
1879
1880 int main(int argc, char **argv)
1881 {
1882         errcode_t retval;
1883         ext2_filsys fs;
1884         struct ext2_super_block *sb;
1885         io_manager io_ptr, io_ptr_orig = NULL;
1886         int rc = 0;
1887
1888 #ifdef ENABLE_NLS
1889         setlocale(LC_MESSAGES, "");
1890         setlocale(LC_CTYPE, "");
1891         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
1892         textdomain(NLS_CAT_NAME);
1893         set_com_err_gettext(gettext);
1894 #endif
1895         if (argc && *argv)
1896                 program_name = *argv;
1897         add_error_table(&et_ext2_error_table);
1898
1899 #ifdef CONFIG_BUILD_FINDFS
1900         if (strcmp(get_progname(argv[0]), "findfs") == 0)
1901                 do_findfs(argc, argv);
1902 #endif
1903         if (strcmp(get_progname(argv[0]), "e2label") == 0)
1904                 parse_e2label_options(argc, argv);
1905         else
1906                 parse_tune2fs_options(argc, argv);
1907
1908 #ifdef CONFIG_TESTIO_DEBUG
1909         if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_DEBUG")) {
1910                 io_ptr = test_io_manager;
1911                 test_io_backing_manager = unix_io_manager;
1912         } else
1913 #endif
1914                 io_ptr = unix_io_manager;
1915
1916 retry_open:
1917         if ((open_flag & EXT2_FLAG_RW) == 0 || f_flag)
1918                 open_flag |= EXT2_FLAG_SKIP_MMP;
1919
1920         open_flag |= EXT2_FLAG_64BITS;
1921
1922         /* keep the filesystem struct around to dump MMP data */
1923         open_flag |= EXT2_FLAG_NOFREE_ON_ERROR;
1924
1925         retval = ext2fs_open2(device_name, io_options, open_flag,
1926                               0, 0, io_ptr, &fs);
1927         if (retval) {
1928                 com_err(program_name, retval,
1929                         _("while trying to open %s"),
1930                         device_name);
1931                 if (retval == EXT2_ET_MMP_FSCK_ON ||
1932                     retval == EXT2_ET_MMP_UNKNOWN_SEQ)
1933                         dump_mmp_msg(fs->mmp_buf,
1934                                      _("If you are sure the filesystem "
1935                                        "is not in use on any node, run:\n"
1936                                        "'tune2fs -f -E clear_mmp {device}'\n"));
1937                 else if (retval == EXT2_ET_MMP_FAILED)
1938                         dump_mmp_msg(fs->mmp_buf, NULL);
1939                 else if (retval == EXT2_ET_MMP_MAGIC_INVALID)
1940                         fprintf(stderr,
1941                                 _("MMP block magic is bad. Try to fix it by "
1942                                   "running:\n'e2fsck -f %s'\n"), device_name);
1943                 else if (retval != EXT2_ET_MMP_FAILED)
1944                         fprintf(stderr, "%s",
1945                              _("Couldn't find valid filesystem superblock.\n"));
1946
1947                 ext2fs_free(fs);
1948                 exit(1);
1949         }
1950         fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
1951
1952         if (I_flag && !io_ptr_orig) {
1953                 /*
1954                  * Check the inode size is right so we can issue an
1955                  * error message and bail before setting up the tdb
1956                  * file.
1957                  */
1958                 if (new_inode_size == EXT2_INODE_SIZE(fs->super)) {
1959                         fprintf(stderr, _("The inode size is already %lu\n"),
1960                                 new_inode_size);
1961                         rc = 1;
1962                         goto closefs;
1963                 }
1964                 if (new_inode_size < EXT2_INODE_SIZE(fs->super)) {
1965                         fprintf(stderr, "%s",
1966                                 _("Shrinking inode size is not supported\n"));
1967                         rc = 1;
1968                         goto closefs;
1969                 }
1970                 if (new_inode_size > fs->blocksize) {
1971                         fprintf(stderr, _("Invalid inode size %lu (max %d)\n"),
1972                                 new_inode_size, fs->blocksize);
1973                         rc = 1;
1974                         goto closefs;
1975                 }
1976
1977                 /*
1978                  * If inode resize is requested use the
1979                  * Undo I/O manager
1980                  */
1981                 io_ptr_orig = io_ptr;
1982                 retval = tune2fs_setup_tdb(device_name, &io_ptr);
1983                 if (retval) {
1984                         rc = 1;
1985                         goto closefs;
1986                 }
1987                 if (io_ptr != io_ptr_orig) {
1988                         ext2fs_close(fs);
1989                         goto retry_open;
1990                 }
1991         }
1992
1993         sb = fs->super;
1994         fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1995
1996         if (print_label) {
1997                 /* For e2label emulation */
1998                 printf("%.*s\n", (int) sizeof(sb->s_volume_name),
1999                        sb->s_volume_name);
2000                 remove_error_table(&et_ext2_error_table);
2001                 goto closefs;
2002         }
2003
2004         retval = ext2fs_check_if_mounted(device_name, &mount_flags);
2005         if (retval) {
2006                 com_err("ext2fs_check_if_mount", retval,
2007                         _("while determining whether %s is mounted."),
2008                         device_name);
2009                 rc = 1;
2010                 goto closefs;
2011         }
2012         /* Normally we only need to write out the superblock */
2013         fs->flags |= EXT2_FLAG_SUPER_ONLY;
2014
2015         if (c_flag) {
2016                 sb->s_max_mnt_count = max_mount_count;
2017                 ext2fs_mark_super_dirty(fs);
2018                 printf(_("Setting maximal mount count to %d\n"),
2019                        max_mount_count);
2020         }
2021         if (C_flag) {
2022                 sb->s_mnt_count = mount_count;
2023                 ext2fs_mark_super_dirty(fs);
2024                 printf(_("Setting current mount count to %d\n"), mount_count);
2025         }
2026         if (e_flag) {
2027                 sb->s_errors = errors;
2028                 ext2fs_mark_super_dirty(fs);
2029                 printf(_("Setting error behavior to %d\n"), errors);
2030         }
2031         if (g_flag) {
2032                 sb->s_def_resgid = resgid;
2033                 ext2fs_mark_super_dirty(fs);
2034                 printf(_("Setting reserved blocks gid to %lu\n"), resgid);
2035         }
2036         if (i_flag) {
2037                 if (interval >= (1ULL << 32)) {
2038                         com_err(program_name, 0,
2039                                 _("interval between checks is too big (%lu)"),
2040                                 interval);
2041                         rc = 1;
2042                         goto closefs;
2043                 }
2044                 sb->s_checkinterval = interval;
2045                 ext2fs_mark_super_dirty(fs);
2046                 printf(_("Setting interval between checks to %lu seconds\n"),
2047                        interval);
2048         }
2049         if (m_flag) {
2050                 ext2fs_r_blocks_count_set(sb, reserved_ratio *
2051                                           ext2fs_blocks_count(sb) / 100.0);
2052                 ext2fs_mark_super_dirty(fs);
2053                 printf (_("Setting reserved blocks percentage to %g%% (%llu blocks)\n"),
2054                         reserved_ratio, ext2fs_r_blocks_count(sb));
2055         }
2056         if (r_flag) {
2057                 if (reserved_blocks > ext2fs_blocks_count(sb)/2) {
2058                         com_err(program_name, 0,
2059                                 _("reserved blocks count is too big (%llu)"),
2060                                 reserved_blocks);
2061                         rc = 1;
2062                         goto closefs;
2063                 }
2064                 ext2fs_r_blocks_count_set(sb, reserved_blocks);
2065                 ext2fs_mark_super_dirty(fs);
2066                 printf(_("Setting reserved blocks count to %llu\n"),
2067                        reserved_blocks);
2068         }
2069         if (s_flag == 1) {
2070                 if (sb->s_feature_ro_compat &
2071                     EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)
2072                         fputs(_("\nThe filesystem already has sparse "
2073                                 "superblocks.\n"), stderr);
2074                 else {
2075                         sb->s_feature_ro_compat |=
2076                                 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
2077                         sb->s_state &= ~EXT2_VALID_FS;
2078                         ext2fs_mark_super_dirty(fs);
2079                         printf(_("\nSparse superblock flag set.  %s"),
2080                                _(please_fsck));
2081                 }
2082         }
2083         if (s_flag == 0) {
2084                 fputs(_("\nClearing the sparse superflag not supported.\n"),
2085                       stderr);
2086                 rc = 1;
2087                 goto closefs;
2088         }
2089         if (T_flag) {
2090                 sb->s_lastcheck = last_check_time;
2091                 ext2fs_mark_super_dirty(fs);
2092                 printf(_("Setting time filesystem last checked to %s\n"),
2093                        ctime(&last_check_time));
2094         }
2095         if (u_flag) {
2096                 sb->s_def_resuid = resuid;
2097                 ext2fs_mark_super_dirty(fs);
2098                 printf(_("Setting reserved blocks uid to %lu\n"), resuid);
2099         }
2100         if (L_flag) {
2101                 if (strlen(new_label) > sizeof(sb->s_volume_name))
2102                         fputs(_("Warning: label too long, truncating.\n"),
2103                               stderr);
2104                 memset(sb->s_volume_name, 0, sizeof(sb->s_volume_name));
2105                 strncpy(sb->s_volume_name, new_label,
2106                         sizeof(sb->s_volume_name));
2107                 ext2fs_mark_super_dirty(fs);
2108         }
2109         if (M_flag) {
2110                 memset(sb->s_last_mounted, 0, sizeof(sb->s_last_mounted));
2111                 strncpy(sb->s_last_mounted, new_last_mounted,
2112                         sizeof(sb->s_last_mounted));
2113                 ext2fs_mark_super_dirty(fs);
2114         }
2115         if (mntopts_cmd) {
2116                 rc = update_mntopts(fs, mntopts_cmd);
2117                 if (rc)
2118                         goto closefs;
2119         }
2120         if (features_cmd) {
2121                 rc = update_feature_set(fs, features_cmd);
2122                 if (rc)
2123                         goto closefs;
2124         }
2125         if (extended_cmd) {
2126                 rc = parse_extended_opts(fs, extended_cmd);
2127                 if (rc)
2128                         goto closefs;
2129                 if (clear_mmp && !f_flag) {
2130                         fputs(_("Error in using clear_mmp. "
2131                                 "It must be used with -f\n"),
2132                               stderr);
2133                         goto closefs;
2134                 }
2135         }
2136         if (clear_mmp) {
2137                 rc = ext2fs_mmp_clear(fs);
2138                 goto closefs;
2139         }
2140         if (journal_size || journal_device) {
2141                 rc = add_journal(fs);
2142                 if (rc)
2143                         goto closefs;
2144         }
2145
2146         if (Q_flag) {
2147                 if (mount_flags & EXT2_MF_MOUNTED) {
2148                         fputs(_("The quota feature may only be changed when "
2149                                 "the filesystem is unmounted.\n"), stderr);
2150                         rc = 1;
2151                         goto closefs;
2152                 }
2153                 handle_quota_options(fs);
2154         }
2155
2156         if (U_flag) {
2157                 int set_csum = 0;
2158                 dgrp_t i;
2159
2160                 if (sb->s_feature_ro_compat &
2161                     EXT4_FEATURE_RO_COMPAT_GDT_CSUM) {
2162                         /*
2163                          * Changing the UUID requires rewriting all metadata,
2164                          * which can race with a mounted fs.  Don't allow that.
2165                          */
2166                         if (mount_flags & EXT2_MF_MOUNTED) {
2167                                 fputs(_("The UUID may only be "
2168                                         "changed when the filesystem is "
2169                                         "unmounted.\n"), stderr);
2170                                 exit(1);
2171                         }
2172                         if (check_fsck_needed(fs))
2173                                 exit(1);
2174
2175                         /*
2176                          * Determine if the block group checksums are
2177                          * correct so we know whether or not to set
2178                          * them later on.
2179                          */
2180                         for (i = 0; i < fs->group_desc_count; i++)
2181                                 if (!ext2fs_group_desc_csum_verify(fs, i))
2182                                         break;
2183                         if (i >= fs->group_desc_count)
2184                                 set_csum = 1;
2185                 }
2186                 if ((strcasecmp(new_UUID, "null") == 0) ||
2187                     (strcasecmp(new_UUID, "clear") == 0)) {
2188                         uuid_clear(sb->s_uuid);
2189                 } else if (strcasecmp(new_UUID, "time") == 0) {
2190                         uuid_generate_time(sb->s_uuid);
2191                 } else if (strcasecmp(new_UUID, "random") == 0) {
2192                         uuid_generate(sb->s_uuid);
2193                 } else if (uuid_parse(new_UUID, sb->s_uuid)) {
2194                         com_err(program_name, 0, "%s",
2195                                 _("Invalid UUID format\n"));
2196                         rc = 1;
2197                         goto closefs;
2198                 }
2199                 if (set_csum) {
2200                         for (i = 0; i < fs->group_desc_count; i++)
2201                                 ext2fs_group_desc_csum_set(fs, i);
2202                         fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
2203                 }
2204                 ext2fs_mark_super_dirty(fs);
2205         }
2206         if (I_flag) {
2207                 if (mount_flags & EXT2_MF_MOUNTED) {
2208                         fputs(_("The inode size may only be "
2209                                 "changed when the filesystem is "
2210                                 "unmounted.\n"), stderr);
2211                         rc = 1;
2212                         goto closefs;
2213                 }
2214                 if (fs->super->s_feature_incompat &
2215                     EXT4_FEATURE_INCOMPAT_FLEX_BG) {
2216                         fputs(_("Changing the inode size not supported for "
2217                                 "filesystems with the flex_bg\n"
2218                                 "feature enabled.\n"),
2219                               stderr);
2220                         rc = 1;
2221                         goto closefs;
2222                 }
2223                 /*
2224                  * We want to update group descriptor also
2225                  * with the new free inode count
2226                  */
2227                 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
2228                 if (resize_inode(fs, new_inode_size) == 0) {
2229                         printf(_("Setting inode size %lu\n"),
2230                                                         new_inode_size);
2231                 } else {
2232                         printf("%s", _("Failed to change inode size\n"));
2233                         rc = 1;
2234                         goto closefs;
2235                 }
2236         }
2237
2238         if (l_flag)
2239                 list_super(sb);
2240         if (stride_set) {
2241                 sb->s_raid_stride = stride;
2242                 ext2fs_mark_super_dirty(fs);
2243                 printf(_("Setting stride size to %d\n"), stride);
2244         }
2245         if (stripe_width_set) {
2246                 sb->s_raid_stripe_width = stripe_width;
2247                 ext2fs_mark_super_dirty(fs);
2248                 printf(_("Setting stripe width to %d\n"), stripe_width);
2249         }
2250         if (ext_mount_opts) {
2251                 strncpy((char *)(fs->super->s_mount_opts), ext_mount_opts,
2252                         sizeof(fs->super->s_mount_opts));
2253                 fs->super->s_mount_opts[sizeof(fs->super->s_mount_opts)-1] = 0;
2254                 ext2fs_mark_super_dirty(fs);
2255                 printf(_("Setting extended default mount options to '%s'\n"),
2256                        ext_mount_opts);
2257                 free(ext_mount_opts);
2258         }
2259         free(device_name);
2260         remove_error_table(&et_ext2_error_table);
2261
2262 closefs:
2263         if (rc) {
2264                 ext2fs_mmp_stop(fs);
2265                 exit(1);
2266         }
2267
2268         return (ext2fs_close(fs) ? 1 : 0);
2269 }