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 #define _BSD_SOURCE /* for inclusion of strcasecmp() */
  30 #include <fcntl.h>
  31 #include <grp.h>
  32 #ifdef HAVE_GETOPT_H
  33 #include <getopt.h>
  34 #else
  35 extern char *optarg;
  36 extern int optind;
  37 #endif
  38 #include <pwd.h>
  39 #include <stdio.h>
  40 #include <stdlib.h>
  41 #include <string.h>
  42 #include <time.h>
  43 #include <unistd.h>
  44 #include <sys/types.h>
  45 #include <libgen.h>
  46 #include <limits.h>
  47
  48 #include "ext2fs/ext2_fs.h"
  49 #include "ext2fs/ext2fs.h"
  50 #include "et/com_err.h"
  51 #include "uuid/uuid.h"
  52 #include "e2p/e2p.h"
  53 #include "jfs_user.h"
  54 #include "util.h"
  55 #include "blkid/blkid.h"
  56
  57 #include "../version.h"
  58 #include "nls-enable.h"
  59
  60 const char * program_name = "tune2fs";
  61 char * device_name;
  62 char * new_label, *new_last_mounted, *new_UUID;
  63 char * io_options;
  64 static int c_flag, C_flag, e_flag, f_flag, g_flag, i_flag, l_flag, L_flag;
  65 static int m_flag, M_flag, r_flag, s_flag = -1, u_flag, U_flag, T_flag;
  66 static int I_flag;
  67 static time_t last_check_time;
  68 static int print_label;
  69 static int max_mount_count, mount_count, mount_flags;
  70 static unsigned long interval, reserved_blocks;
  71 static double reserved_ratio;
  72 static unsigned long resgid, resuid;
  73 static unsigned short errors;
  74 static int open_flag;
  75 static char *features_cmd;
  76 static char *mntopts_cmd;
  77 static int stride, stripe_width;
  78 static int stride_set, stripe_width_set;
  79 static char *extended_cmd;
  80 static unsigned long new_inode_size;
  81
  82 int journal_size, journal_flags;
  83 char *journal_device;
  84
  85 static struct list_head blk_move_list;
  86
  87 struct blk_move {
  88         struct list_head list;
  89         blk_t old_loc;
  90         blk_t new_loc;
  91 };
  92
  93
  94 static const char *please_fsck = N_("Please run e2fsck on the filesystem.\n");
  95
  96 void do_findfs(int argc, char **argv);
  97
  98 static void usage(void)
  99 {
 100         fprintf(stderr,
 101                 _("Usage: %s [-c max_mounts_count] [-e errors_behavior] "
 102                   "[-g group]\n"
 103                   "\t[-i interval[d|m|w]] [-j] [-J journal_options] [-l]\n"
 104                   "\t[-m reserved_blocks_percent] "
 105                   "[-o [^]mount_options[,...]] \n"
 106                   "\t[-r reserved_blocks_count] [-u user] [-C mount_count] "
 107                   "[-L volume_label]\n"
 108                   "\t[-M last_mounted_dir] [-O [^]feature[,...]]\n"
 109                   "\t[-E extended-option[,...]] [-T last_check_time] "
 110                   "[-U UUID]\n\t[ -I new_inode_size ] device\n"), program_name);
 111         exit (1);
 112 }
 113
 114 static __u32 ok_features[3] = {
 115         /* Compat */
 116         EXT3_FEATURE_COMPAT_HAS_JOURNAL |
 117                 EXT2_FEATURE_COMPAT_DIR_INDEX,
 118         /* Incompat */
 119         EXT2_FEATURE_INCOMPAT_FILETYPE |
 120                 EXT3_FEATURE_INCOMPAT_EXTENTS |
 121                 EXT4_FEATURE_INCOMPAT_FLEX_BG,
 122         /* R/O compat */
 123         EXT2_FEATURE_RO_COMPAT_LARGE_FILE |
 124                 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
 125                 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
 126                 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
 127                 EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
 128                 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
 129 };
 130
 131 static __u32 clear_ok_features[3] = {
 132         /* Compat */
 133         EXT3_FEATURE_COMPAT_HAS_JOURNAL |
 134                 EXT2_FEATURE_COMPAT_RESIZE_INODE |
 135                 EXT2_FEATURE_COMPAT_DIR_INDEX,
 136         /* Incompat */
 137         EXT2_FEATURE_INCOMPAT_FILETYPE |
 138                 EXT4_FEATURE_INCOMPAT_FLEX_BG,
 139         /* R/O compat */
 140         EXT2_FEATURE_RO_COMPAT_LARGE_FILE |
 141                 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
 142                 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
 143                 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
 144                 EXT4_FEATURE_RO_COMPAT_GDT_CSUM
 145 };
 146
 147 /*
 148  * Remove an external journal from the filesystem
 149  */
 150 static void remove_journal_device(ext2_filsys fs)
 151 {
 152         char            *journal_path;
 153         ext2_filsys     jfs;
 154         char            buf[1024];
 155         journal_superblock_t    *jsb;
 156         int             i, nr_users;
 157         errcode_t       retval;
 158         int             commit_remove_journal = 0;
 159         io_manager      io_ptr;
 160
 161         if (f_flag)
 162                 commit_remove_journal = 1; /* force removal even if error */
 163
 164         uuid_unparse(fs->super->s_journal_uuid, buf);
 165         journal_path = blkid_get_devname(NULL, "UUID", buf);
 166
 167         if (!journal_path) {
 168                 journal_path =
 169                         ext2fs_find_block_device(fs->super->s_journal_dev);
 170                 if (!journal_path)
 171                         return;
 172         }
 173
 174 #ifdef CONFIG_TESTIO_DEBUG
 175         io_ptr = test_io_manager;
 176         test_io_backing_manager = unix_io_manager;
 177 #else
 178         io_ptr = unix_io_manager;
 179 #endif
 180         retval = ext2fs_open(journal_path, EXT2_FLAG_RW|
 181                              EXT2_FLAG_JOURNAL_DEV_OK, 0,
 182                              fs->blocksize, io_ptr, &jfs);
 183         if (retval) {
 184                 com_err(program_name, retval,
 185                         _("while trying to open external journal"));
 186                 goto no_valid_journal;
 187         }
 188         if (!(jfs->super->s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)) {
 189                 fprintf(stderr, _("%s is not a journal device.\n"),
 190                         journal_path);
 191                 goto no_valid_journal;
 192         }
 193
 194         /* Get the journal superblock */
 195         if ((retval = io_channel_read_blk(jfs->io, 1, -1024, buf))) {
 196                 com_err(program_name, retval,
 197                         _("while reading journal superblock"));
 198                 goto no_valid_journal;
 199         }
 200
 201         jsb = (journal_superblock_t *) buf;
 202         if ((jsb->s_header.h_magic != (unsigned) ntohl(JFS_MAGIC_NUMBER)) ||
 203             (jsb->s_header.h_blocktype != (unsigned) ntohl(JFS_SUPERBLOCK_V2))) {
 204                 fputs(_("Journal superblock not found!\n"), stderr);
 205                 goto no_valid_journal;
 206         }
 207
 208         /* Find the filesystem UUID */
 209         nr_users = ntohl(jsb->s_nr_users);
 210         for (i=0; i < nr_users; i++) {
 211                 if (memcmp(fs->super->s_uuid,
 212                            &jsb->s_users[i*16], 16) == 0)
 213                         break;
 214         }
 215         if (i >= nr_users) {
 216                 fputs(_("Filesystem's UUID not found on journal device.\n"),
 217                       stderr);
 218                 commit_remove_journal = 1;
 219                 goto no_valid_journal;
 220         }
 221         nr_users--;
 222         for (i=0; i < nr_users; i++)
 223                 memcpy(&jsb->s_users[i*16], &jsb->s_users[(i+1)*16], 16);
 224         jsb->s_nr_users = htonl(nr_users);
 225
 226         /* Write back the journal superblock */
 227         if ((retval = io_channel_write_blk(jfs->io, 1, -1024, buf))) {
 228                 com_err(program_name, retval,
 229                         "while writing journal superblock.");
 230                 goto no_valid_journal;
 231         }
 232
 233         commit_remove_journal = 1;
 234
 235 no_valid_journal:
 236         if (commit_remove_journal == 0) {
 237                 fputs(_("Journal NOT removed\n"), stderr);
 238                 exit(1);
 239         }
 240         fs->super->s_journal_dev = 0;
 241         uuid_clear(fs->super->s_journal_uuid);
 242         ext2fs_mark_super_dirty(fs);
 243         fputs(_("Journal removed\n"), stdout);
 244         free(journal_path);
 245 }
 246
 247 /* Helper function for remove_journal_inode */
 248 static int release_blocks_proc(ext2_filsys fs, blk_t *blocknr,
 249                                int blockcnt EXT2FS_ATTR((unused)),
 250                                void *private EXT2FS_ATTR((unused)))
 251 {
 252         blk_t   block;
 253         int     group;
 254
 255         block = *blocknr;
 256         ext2fs_unmark_block_bitmap(fs->block_map,block);
 257         group = ext2fs_group_of_blk(fs, block);
 258         fs->group_desc[group].bg_free_blocks_count++;
 259         ext2fs_group_desc_csum_set(fs, group);
 260         fs->super->s_free_blocks_count++;
 261         return 0;
 262 }
 263
 264 /*
 265  * Remove the journal inode from the filesystem
 266  */
 267 static void remove_journal_inode(ext2_filsys fs)
 268 {
 269         struct ext2_inode       inode;
 270         errcode_t               retval;
 271         ino_t                   ino = fs->super->s_journal_inum;
 272
 273         retval = ext2fs_read_inode(fs, ino,  &inode);
 274         if (retval) {
 275                 com_err(program_name, retval,
 276                         _("while reading journal inode"));
 277                 exit(1);
 278         }
 279         if (ino == EXT2_JOURNAL_INO) {
 280                 retval = ext2fs_read_bitmaps(fs);
 281                 if (retval) {
 282                         com_err(program_name, retval,
 283                                 _("while reading bitmaps"));
 284                         exit(1);
 285                 }
 286                 retval = ext2fs_block_iterate(fs, ino,
 287                                               BLOCK_FLAG_READ_ONLY, NULL,
 288                                               release_blocks_proc, NULL);
 289                 if (retval) {
 290                         com_err(program_name, retval,
 291                                 _("while clearing journal inode"));
 292                         exit(1);
 293                 }
 294                 memset(&inode, 0, sizeof(inode));
 295                 ext2fs_mark_bb_dirty(fs);
 296                 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
 297         } else
 298                 inode.i_flags &= ~EXT2_IMMUTABLE_FL;
 299         retval = ext2fs_write_inode(fs, ino, &inode);
 300         if (retval) {
 301                 com_err(program_name, retval,
 302                         _("while writing journal inode"));
 303                 exit(1);
 304         }
 305         fs->super->s_journal_inum = 0;
 306         ext2fs_mark_super_dirty(fs);
 307 }
 308
 309 /*
 310  * Update the default mount options
 311  */
 312 static void update_mntopts(ext2_filsys fs, char *mntopts)
 313 {
 314         struct ext2_super_block *sb= fs->super;
 315
 316         if (e2p_edit_mntopts(mntopts, &sb->s_default_mount_opts, ~0)) {
 317                 fprintf(stderr, _("Invalid mount option set: %s\n"),
 318                         mntopts);
 319                 exit(1);
 320         }
 321         ext2fs_mark_super_dirty(fs);
 322 }
 323
 324 /*
 325  * Update the feature set as provided by the user.
 326  */
 327 static void update_feature_set(ext2_filsys fs, char *features)
 328 {
 329         struct ext2_super_block *sb= fs->super;
 330         __u32           old_features[3];
 331         int             type_err;
 332         unsigned int    mask_err;
 333
 334 #define FEATURE_ON(type, mask) (!(old_features[(type)] & (mask)) && \
 335                                 ((&sb->s_feature_compat)[(type)] & (mask)))
 336 #define FEATURE_OFF(type, mask) ((old_features[(type)] & (mask)) && \
 337                                  !((&sb->s_feature_compat)[(type)] & (mask)))
 338 #define FEATURE_CHANGED(type, mask) ((mask) & \
 339                      (old_features[(type)] ^ (&sb->s_feature_compat)[(type)]))
 340
 341         old_features[E2P_FEATURE_COMPAT] = sb->s_feature_compat;
 342         old_features[E2P_FEATURE_INCOMPAT] = sb->s_feature_incompat;
 343         old_features[E2P_FEATURE_RO_INCOMPAT] = sb->s_feature_ro_compat;
 344
 345         if (e2p_edit_feature2(features, &sb->s_feature_compat,
 346                               ok_features, clear_ok_features,
 347                               &type_err, &mask_err)) {
 348                 if (!mask_err)
 349                         fprintf(stderr,
 350                                 _("Invalid filesystem option set: %s\n"),
 351                                 features);
 352                 else if (type_err & E2P_FEATURE_NEGATE_FLAG)
 353                         fprintf(stderr, _("Clearing filesystem feature '%s' "
 354                                           "not supported.\n"),
 355                                 e2p_feature2string(type_err &
 356                                                    E2P_FEATURE_TYPE_MASK,
 357                                                    mask_err));
 358                 else
 359                         fprintf(stderr, _("Setting filesystem feature '%s' "
 360                                           "not supported.\n"),
 361                                 e2p_feature2string(type_err, mask_err));
 362                 exit(1);
 363         }
 364
 365         if (FEATURE_OFF(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
 366                 if ((mount_flags & EXT2_MF_MOUNTED) &&
 367                     !(mount_flags & EXT2_MF_READONLY)) {
 368                         fputs(_("The has_journal feature may only be "
 369                                 "cleared when the filesystem is\n"
 370                                 "unmounted or mounted "
 371                                 "read-only.\n"), stderr);
 372                         exit(1);
 373                 }
 374                 if (sb->s_feature_incompat &
 375                     EXT3_FEATURE_INCOMPAT_RECOVER) {
 376                         fputs(_("The needs_recovery flag is set.  "
 377                                 "Please run e2fsck before clearing\n"
 378                                 "the has_journal flag.\n"), stderr);
 379                         exit(1);
 380                 }
 381                 if (sb->s_journal_inum) {
 382                         remove_journal_inode(fs);
 383                 }
 384                 if (sb->s_journal_dev) {
 385                         remove_journal_device(fs);
 386                 }
 387         }
 388
 389         if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
 390                 /*
 391                  * If adding a journal flag, let the create journal
 392                  * code below handle creating setting the flag and
 393                  * creating the journal.  We supply a default size if
 394                  * necessary.
 395                  */
 396                 if (!journal_size)
 397                         journal_size = -1;
 398                 sb->s_feature_compat &= ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
 399         }
 400
 401         if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_DIR_INDEX)) {
 402                 if (!sb->s_def_hash_version)
 403                         sb->s_def_hash_version = EXT2_HASH_TEA;
 404                 if (uuid_is_null((unsigned char *) sb->s_hash_seed))
 405                         uuid_generate((unsigned char *) sb->s_hash_seed);
 406         }
 407
 408         if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_FLEX_BG)) {
 409                 if (ext2fs_check_desc(fs)) {
 410                         fputs(_("Clearing the flex_bg flag would "
 411                                 "cause the the filesystem to be\n"
 412                                 "inconsistent.\n"), stderr);
 413                         exit(1);
 414                 }
 415         }
 416
 417         if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
 418                             EXT4_FEATURE_RO_COMPAT_HUGE_FILE)) {
 419                 if ((mount_flags & EXT2_MF_MOUNTED) &&
 420                     !(mount_flags & EXT2_MF_READONLY)) {
 421                         fputs(_("The huge_file feature may only be "
 422                                 "cleared when the filesystem is\n"
 423                                 "unmounted or mounted "
 424                                 "read-only.\n"), stderr);
 425                         exit(1);
 426                 }
 427         }
 428
 429         if (sb->s_rev_level == EXT2_GOOD_OLD_REV &&
 430             (sb->s_feature_compat || sb->s_feature_ro_compat ||
 431              sb->s_feature_incompat))
 432                 ext2fs_update_dynamic_rev(fs);
 433
 434         if (FEATURE_CHANGED(E2P_FEATURE_RO_INCOMPAT,
 435                             EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) ||
 436             FEATURE_CHANGED(E2P_FEATURE_RO_INCOMPAT,
 437                             EXT4_FEATURE_RO_COMPAT_GDT_CSUM) ||
 438             FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
 439                         EXT4_FEATURE_RO_COMPAT_HUGE_FILE) ||
 440             FEATURE_CHANGED(E2P_FEATURE_INCOMPAT,
 441                             EXT2_FEATURE_INCOMPAT_FILETYPE) ||
 442             FEATURE_CHANGED(E2P_FEATURE_COMPAT,
 443                             EXT2_FEATURE_COMPAT_RESIZE_INODE) ||
 444             FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
 445                         EXT2_FEATURE_RO_COMPAT_LARGE_FILE)) {
 446                 sb->s_state &= ~EXT2_VALID_FS;
 447                 printf("\n%s\n", _(please_fsck));
 448                 if (mount_flags & EXT2_MF_READONLY)
 449                         printf(_("(and reboot afterwards!)\n"));
 450         }
 451
 452         if ((old_features[E2P_FEATURE_COMPAT] != sb->s_feature_compat) ||
 453             (old_features[E2P_FEATURE_INCOMPAT] != sb->s_feature_incompat) ||
 454             (old_features[E2P_FEATURE_RO_INCOMPAT] != sb->s_feature_ro_compat))
 455                 ext2fs_mark_super_dirty(fs);
 456 }
 457
 458 /*
 459  * Add a journal to the filesystem.
 460  */
 461 static void add_journal(ext2_filsys fs)
 462 {
 463         unsigned long journal_blocks;
 464         errcode_t       retval;
 465         ext2_filsys     jfs;
 466         io_manager      io_ptr;
 467
 468         if (fs->super->s_feature_compat &
 469             EXT3_FEATURE_COMPAT_HAS_JOURNAL) {
 470                 fputs(_("The filesystem already has a journal.\n"), stderr);
 471                 goto err;
 472         }
 473         if (journal_device) {
 474                 check_plausibility(journal_device);
 475                 check_mount(journal_device, 0, _("journal"));
 476 #ifdef CONFIG_TESTIO_DEBUG
 477                 io_ptr = test_io_manager;
 478                 test_io_backing_manager = unix_io_manager;
 479 #else
 480                 io_ptr = unix_io_manager;
 481 #endif
 482                 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
 483                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
 484                                      fs->blocksize, io_ptr, &jfs);
 485                 if (retval) {
 486                         com_err(program_name, retval,
 487                                 _("\n\twhile trying to open journal on %s\n"),
 488                                 journal_device);
 489                         goto err;
 490                 }
 491                 printf(_("Creating journal on device %s: "),
 492                        journal_device);
 493                 fflush(stdout);
 494
 495                 retval = ext2fs_add_journal_device(fs, jfs);
 496                 ext2fs_close(jfs);
 497                 if (retval) {
 498                         com_err (program_name, retval,
 499                                  _("while adding filesystem to journal on %s"),
 500                                  journal_device);
 501                         goto err;
 502                 }
 503                 fputs(_("done\n"), stdout);
 504         } else if (journal_size) {
 505                 fputs(_("Creating journal inode: "), stdout);
 506                 fflush(stdout);
 507                 journal_blocks = figure_journal_size(journal_size, fs);
 508
 509                 retval = ext2fs_add_journal_inode(fs, journal_blocks,
 510                                                   journal_flags);
 511                 if (retval) {
 512                         fprintf(stderr, "\n");
 513                         com_err(program_name, retval,
 514                                 _("\n\twhile trying to create journal file"));
 515                         exit(1);
 516                 } else
 517                         fputs(_("done\n"), stdout);
 518                 /*
 519                  * If the filesystem wasn't mounted, we need to force
 520                  * the block group descriptors out.
 521                  */
 522                 if ((mount_flags & EXT2_MF_MOUNTED) == 0)
 523                         fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
 524         }
 525         print_check_message(fs);
 526         return;
 527
 528 err:
 529         if (journal_device)
 530                 free(journal_device);
 531         exit(1);
 532 }
 533
 534
 535 static void parse_e2label_options(int argc, char ** argv)
 536 {
 537         if ((argc < 2) || (argc > 3)) {
 538                 fputs(_("Usage: e2label device [newlabel]\n"), stderr);
 539                 exit(1);
 540         }
 541         io_options = strchr(argv[1], '?');
 542         if (io_options)
 543                 *io_options++ = 0;
 544         device_name = blkid_get_devname(NULL, argv[1], NULL);
 545         if (!device_name) {
 546                 com_err("e2label", 0, _("Unable to resolve '%s'"),
 547                         argv[1]);
 548                 exit(1);
 549         }
 550         open_flag = EXT2_FLAG_JOURNAL_DEV_OK;
 551         if (argc == 3) {
 552                 open_flag |= EXT2_FLAG_RW;
 553                 L_flag = 1;
 554                 new_label = argv[2];
 555         } else
 556                 print_label++;
 557 }
 558
 559 static time_t parse_time(char *str)
 560 {
 561         struct  tm      ts;
 562
 563         if (strcmp(str, "now") == 0) {
 564                 return (time(0));
 565         }
 566         memset(&ts, 0, sizeof(ts));
 567 #ifdef HAVE_STRPTIME
 568         strptime(str, "%Y%m%d%H%M%S", &ts);
 569 #else
 570         sscanf(str, "%4d%2d%2d%2d%2d%2d", &ts.tm_year, &ts.tm_mon,
 571                &ts.tm_mday, &ts.tm_hour, &ts.tm_min, &ts.tm_sec);
 572         ts.tm_year -= 1900;
 573         ts.tm_mon -= 1;
 574         if (ts.tm_year < 0 || ts.tm_mon < 0 || ts.tm_mon > 11 ||
 575             ts.tm_mday < 0 || ts.tm_mday > 31 || ts.tm_hour > 23 ||
 576             ts.tm_min > 59 || ts.tm_sec > 61)
 577                 ts.tm_mday = 0;
 578 #endif
 579         if (ts.tm_mday == 0) {
 580                 com_err(program_name, 0,
 581                         _("Couldn't parse date/time specifier: %s"),
 582                         str);
 583                 usage();
 584         }
 585         ts.tm_isdst = -1;
 586         return (mktime(&ts));
 587 }
 588
 589 static void parse_tune2fs_options(int argc, char **argv)
 590 {
 591         int c;
 592         char * tmp;
 593         struct group * gr;
 594         struct passwd * pw;
 595
 596         open_flag = 0;
 597
 598         printf("tune2fs %s (%s)\n", E2FSPROGS_VERSION, E2FSPROGS_DATE);
 599         while ((c = getopt(argc, argv, "c:e:fg:i:jlm:o:r:s:u:C:E:I:J:L:M:O:T:U:")) != EOF)
 600                 switch (c)
 601                 {
 602                         case 'c':
 603                                 max_mount_count = strtol (optarg, &tmp, 0);
 604                                 if (*tmp || max_mount_count > 16000) {
 605                                         com_err (program_name, 0,
 606                                                  _("bad mounts count - %s"),
 607                                                  optarg);
 608                                         usage();
 609                                 }
 610                                 if (max_mount_count == 0)
 611                                         max_mount_count = -1;
 612                                 c_flag = 1;
 613                                 open_flag = EXT2_FLAG_RW;
 614                                 break;
 615                         case 'C':
 616                                 mount_count = strtoul (optarg, &tmp, 0);
 617                                 if (*tmp || mount_count > 16000) {
 618                                         com_err (program_name, 0,
 619                                                  _("bad mounts count - %s"),
 620                                                  optarg);
 621                                         usage();
 622                                 }
 623                                 C_flag = 1;
 624                                 open_flag = EXT2_FLAG_RW;
 625                                 break;
 626                         case 'e':
 627                                 if (strcmp (optarg, "continue") == 0)
 628                                         errors = EXT2_ERRORS_CONTINUE;
 629                                 else if (strcmp (optarg, "remount-ro") == 0)
 630                                         errors = EXT2_ERRORS_RO;
 631                                 else if (strcmp (optarg, "panic") == 0)
 632                                         errors = EXT2_ERRORS_PANIC;
 633                                 else {
 634                                         com_err (program_name, 0,
 635                                                  _("bad error behavior - %s"),
 636                                                  optarg);
 637                                         usage();
 638                                 }
 639                                 e_flag = 1;
 640                                 open_flag = EXT2_FLAG_RW;
 641                                 break;
 642                         case 'E':
 643                                 extended_cmd = optarg;
 644                                 open_flag |= EXT2_FLAG_RW;
 645                                 break;
 646                         case 'f': /* Force */
 647                                 f_flag = 1;
 648                                 break;
 649                         case 'g':
 650                                 resgid = strtoul (optarg, &tmp, 0);
 651                                 if (*tmp) {
 652                                         gr = getgrnam (optarg);
 653                                         if (gr == NULL)
 654                                                 tmp = optarg;
 655                                         else {
 656                                                 resgid = gr->gr_gid;
 657                                                 *tmp =0;
 658                                         }
 659                                 }
 660                                 if (*tmp) {
 661                                         com_err (program_name, 0,
 662                                                  _("bad gid/group name - %s"),
 663                                                  optarg);
 664                                         usage();
 665                                 }
 666                                 g_flag = 1;
 667                                 open_flag = EXT2_FLAG_RW;
 668                                 break;
 669                         case 'i':
 670                                 interval = strtoul (optarg, &tmp, 0);
 671                                 switch (*tmp) {
 672                                 case 's':
 673                                         tmp++;
 674                                         break;
 675                                 case '\0':
 676                                 case 'd':
 677                                 case 'D': /* days */
 678                                         interval *= 86400;
 679                                         if (*tmp != '\0')
 680                                                 tmp++;
 681                                         break;
 682                                 case 'm':
 683                                 case 'M': /* months! */
 684                                         interval *= 86400 * 30;
 685                                         tmp++;
 686                                         break;
 687                                 case 'w':
 688                                 case 'W': /* weeks */
 689                                         interval *= 86400 * 7;
 690                                         tmp++;
 691                                         break;
 692                                 }
 693                                 if (*tmp) {
 694                                         com_err (program_name, 0,
 695                                                 _("bad interval - %s"), optarg);
 696                                         usage();
 697                                 }
 698                                 i_flag = 1;
 699                                 open_flag = EXT2_FLAG_RW;
 700                                 break;
 701                         case 'j':
 702                                 if (!journal_size)
 703                                         journal_size = -1;
 704                                 open_flag = EXT2_FLAG_RW;
 705                                 break;
 706                         case 'J':
 707                                 parse_journal_opts(optarg);
 708                                 open_flag = EXT2_FLAG_RW;
 709                                 break;
 710                         case 'l':
 711                                 l_flag = 1;
 712                                 break;
 713                         case 'L':
 714                                 new_label = optarg;
 715                                 L_flag = 1;
 716                                 open_flag |= EXT2_FLAG_RW |
 717                                         EXT2_FLAG_JOURNAL_DEV_OK;
 718                                 break;
 719                         case 'm':
 720                                 reserved_ratio = strtod(optarg, &tmp);
 721                                 if (*tmp || reserved_ratio > 50) {
 722                                         com_err (program_name, 0,
 723                                                  _("bad reserved block ratio - %s"),
 724                                                  optarg);
 725                                         usage();
 726                                 }
 727                                 m_flag = 1;
 728                                 open_flag = EXT2_FLAG_RW;
 729                                 break;
 730                         case 'M':
 731                                 new_last_mounted = optarg;
 732                                 M_flag = 1;
 733                                 open_flag = EXT2_FLAG_RW;
 734                                 break;
 735                         case 'o':
 736                                 if (mntopts_cmd) {
 737                                         com_err (program_name, 0,
 738                                          _("-o may only be specified once"));
 739                                         usage();
 740                                 }
 741                                 mntopts_cmd = optarg;
 742                                 open_flag = EXT2_FLAG_RW;
 743                                 break;
 744
 745                         case 'O':
 746                                 if (features_cmd) {
 747                                         com_err (program_name, 0,
 748                                          _("-O may only be specified once"));
 749                                         usage();
 750                                 }
 751                                 features_cmd = optarg;
 752                                 open_flag = EXT2_FLAG_RW;
 753                                 break;
 754                         case 'r':
 755                                 reserved_blocks = strtoul (optarg, &tmp, 0);
 756                                 if (*tmp) {
 757                                         com_err (program_name, 0,
 758                                                  _("bad reserved blocks count - %s"),
 759                                                  optarg);
 760                                         usage();
 761                                 }
 762                                 r_flag = 1;
 763                                 open_flag = EXT2_FLAG_RW;
 764                                 break;
 765                         case 's': /* Deprecated */
 766                                 s_flag = atoi(optarg);
 767                                 open_flag = EXT2_FLAG_RW;
 768                                 break;
 769                         case 'T':
 770                                 T_flag = 1;
 771                                 last_check_time = parse_time(optarg);
 772                                 open_flag = EXT2_FLAG_RW;
 773                                 break;
 774                         case 'u':
 775                                 resuid = strtoul (optarg, &tmp, 0);
 776                                 if (*tmp) {
 777                                         pw = getpwnam (optarg);
 778                                         if (pw == NULL)
 779                                                 tmp = optarg;
 780                                         else {
 781                                                 resuid = pw->pw_uid;
 782                                                 *tmp = 0;
 783                                         }
 784                                 }
 785                                 if (*tmp) {
 786                                         com_err (program_name, 0,
 787                                                  _("bad uid/user name - %s"),
 788                                                  optarg);
 789                                         usage();
 790                                 }
 791                                 u_flag = 1;
 792                                 open_flag = EXT2_FLAG_RW;
 793                                 break;
 794                         case 'U':
 795                                 new_UUID = optarg;
 796                                 U_flag = 1;
 797                                 open_flag = EXT2_FLAG_RW |
 798                                         EXT2_FLAG_JOURNAL_DEV_OK;
 799                                 break;
 800                         case 'I':
 801                                 new_inode_size = strtoul (optarg, &tmp, 0);
 802                                 if (*tmp) {
 803                                         com_err (program_name, 0,
 804                                                 _("bad inode size - %s"),
 805                                                         optarg);
 806                                         usage();
 807                                 }
 808                                 if (!((new_inode_size &
 809                                                 (new_inode_size - 1)) == 0)) {
 810                                         com_err (program_name, 0,
 811                                                 _("Inode size must be a "
 812                                                 "power of two- %s"),
 813                                                         optarg);
 814                                         usage();
 815                                 }
 816                                 open_flag = EXT2_FLAG_RW;
 817                                 I_flag = 1;
 818                                 break;
 819                         default:
 820                                 usage();
 821                 }
 822         if (optind < argc - 1 || optind == argc)
 823                 usage();
 824         if (!open_flag && !l_flag)
 825                 usage();
 826         io_options = strchr(argv[optind], '?');
 827         if (io_options)
 828                 *io_options++ = 0;
 829         device_name = blkid_get_devname(NULL, argv[optind], NULL);
 830         if (!device_name) {
 831                 com_err("tune2fs", 0, _("Unable to resolve '%s'"),
 832                         argv[optind]);
 833                 exit(1);
 834         }
 835 }
 836
 837 void do_findfs(int argc, char **argv)
 838 {
 839         char    *dev;
 840
 841         if ((argc != 2) ||
 842             (strncmp(argv[1], "LABEL=", 6) && strncmp(argv[1], "UUID=", 5))) {
 843                 fprintf(stderr, "Usage: findfs LABEL=<label>|UUID=<uuid>\n");
 844                 exit(2);
 845         }
 846         dev = blkid_get_devname(NULL, argv[1], NULL);
 847         if (!dev) {
 848                 com_err("findfs", 0, _("Unable to resolve '%s'"),
 849                         argv[1]);
 850                 exit(1);
 851         }
 852         puts(dev);
 853         exit(0);
 854 }
 855
 856 static void parse_extended_opts(ext2_filsys fs, const char *opts)
 857 {
 858         char    *buf, *token, *next, *p, *arg;
 859         int     len;
 860         int     r_usage = 0;
 861
 862         len = strlen(opts);
 863         buf = malloc(len+1);
 864         if (!buf) {
 865                 fprintf(stderr,
 866                         _("Couldn't allocate memory to parse options!\n"));
 867                 exit(1);
 868         }
 869         strcpy(buf, opts);
 870         for (token = buf; token && *token; token = next) {
 871                 p = strchr(token, ',');
 872                 next = 0;
 873                 if (p) {
 874                         *p = 0;
 875                         next = p+1;
 876                 }
 877                 arg = strchr(token, '=');
 878                 if (arg) {
 879                         *arg = 0;
 880                         arg++;
 881                 }
 882                 if (!strcmp(token, "test_fs")) {
 883                         fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
 884                         printf("Setting test filesystem flag\n");
 885                         ext2fs_mark_super_dirty(fs);
 886                 } else if (!strcmp(token, "^test_fs")) {
 887                         fs->super->s_flags &= ~EXT2_FLAGS_TEST_FILESYS;
 888                         printf("Clearing test filesystem flag\n");
 889                         ext2fs_mark_super_dirty(fs);
 890                 } else if (strcmp(token, "stride") == 0) {
 891                         if (!arg) {
 892                                 r_usage++;
 893                                 continue;
 894                         }
 895                         stride = strtoul(arg, &p, 0);
 896                         if (*p || (stride == 0)) {
 897                                 fprintf(stderr,
 898                                        _("Invalid RAID stride: %s\n"),
 899                                         arg);
 900                                 r_usage++;
 901                                 continue;
 902                         }
 903                         stride_set = 1;
 904                 } else if (strcmp(token, "stripe-width") == 0 ||
 905                            strcmp(token, "stripe_width") == 0) {
 906                         if (!arg) {
 907                                 r_usage++;
 908                                 continue;
 909                         }
 910                         stripe_width = strtoul(arg, &p, 0);
 911                         if (*p || (stripe_width == 0)) {
 912                                 fprintf(stderr,
 913                                         _("Invalid RAID stripe-width: %s\n"),
 914                                         arg);
 915                                 r_usage++;
 916                                 continue;
 917                         }
 918                         stripe_width_set = 1;
 919                 } else
 920                         r_usage++;
 921         }
 922         if (r_usage) {
 923                 fprintf(stderr, _("\nBad options specified.\n\n"
 924                         "Extended options are separated by commas, "
 925                         "and may take an argument which\n"
 926                         "\tis set off by an equals ('=') sign.\n\n"
 927                         "Valid extended options are:\n"
 928                         "\tstride=<RAID per-disk chunk size in blocks>\n"
 929                         "\tstripe-width=<RAID stride*data disks in blocks>\n"
 930                         "\ttest_fs\n"
 931                         "\t^test_fs\n"));
 932                 free(buf);
 933                 exit(1);
 934         }
 935         free(buf);
 936 }
 937
 938 static int get_move_bitmap(ext2_filsys fs, int new_ino_blks_per_grp,
 939                                         ext2fs_block_bitmap bmap)
 940 {
 941         dgrp_t i;
 942         blk_t j, needed_blocks = 0;
 943         blk_t start_blk, end_blk;
 944
 945         for (i = 0; i < fs->group_desc_count; i++) {
 946
 947                 start_blk = fs->group_desc[i].bg_inode_table +
 948                                         fs->inode_blocks_per_group;
 949
 950                 end_blk = fs->group_desc[i].bg_inode_table +
 951                                         new_ino_blks_per_grp;
 952
 953                 for (j = start_blk; j < end_blk; j++) {
 954
 955                         if (ext2fs_test_block_bitmap(fs->block_map, j)) {
 956                                 /* FIXME!!
 957                                  * What happens if the block is marked
 958                                  * as a bad block
 959                                  */
 960                                 ext2fs_mark_block_bitmap(bmap, j);
 961                                 needed_blocks++;
 962                         } else {
 963                                 /*
 964                                  * We are going to use this block for
 965                                  * inode table. So mark them used.
 966                                  */
 967                                 ext2fs_mark_block_bitmap(fs->block_map, j);
 968                         }
 969                 }
 970         }
 971
 972         if (needed_blocks > fs->super->s_free_blocks_count ) {
 973                 return ENOSPC;
 974         }
 975
 976         return 0;
 977 }
 978
 979 static int move_block(ext2_filsys fs, ext2fs_block_bitmap bmap)
 980 {
 981         char *buf;
 982         errcode_t retval;
 983         blk_t blk, new_blk;
 984         struct blk_move *bmv;
 985
 986
 987         retval = ext2fs_get_mem(fs->blocksize, &buf);
 988         if (retval)
 989                 return retval;
 990
 991         for (blk = fs->super->s_first_data_block;
 992                         blk < fs->super->s_blocks_count; blk++) {
 993
 994                 if (!ext2fs_test_block_bitmap(bmap, blk))
 995                         continue;
 996
 997                 retval = ext2fs_new_block(fs, blk, NULL, &new_blk);
 998                 if (retval)
 999                         goto err_out;
1000
1001                 /* Mark this block as allocated */
1002                 ext2fs_mark_block_bitmap(fs->block_map, new_blk);
1003
1004                 /* Add it to block move list */
1005                 retval = ext2fs_get_mem(sizeof(struct blk_move), &bmv);
1006                 if (retval)
1007                         goto err_out;
1008
1009                 bmv->old_loc = blk;
1010                 bmv->new_loc = new_blk;
1011
1012                 list_add(&(bmv->list), &blk_move_list);
1013
1014                 retval = io_channel_read_blk(fs->io, blk, 1, buf);
1015                 if (retval)
1016                         goto err_out;
1017
1018                 retval = io_channel_write_blk(fs->io, new_blk, 1, buf);
1019                 if (retval)
1020                         goto err_out;
1021         }
1022
1023 err_out:
1024         ext2fs_free_mem(&buf);
1025         return retval;
1026 }
1027
1028 static blk_t transalate_block(blk_t blk)
1029 {
1030         struct list_head *entry;
1031         struct blk_move *bmv;
1032
1033         list_for_each(entry, &blk_move_list) {
1034
1035                 bmv = list_entry(entry, struct blk_move, list);
1036                 if (bmv->old_loc == blk)
1037                         return bmv->new_loc;
1038         }
1039
1040         return 0;
1041 }
1042
1043 static int process_block(ext2_filsys fs EXT2FS_ATTR((unused)),
1044                          blk_t *block_nr,
1045                          e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1046                          blk_t ref_block EXT2FS_ATTR((unused)),
1047                          int ref_offset EXT2FS_ATTR((unused)),
1048                          void *priv_data EXT2FS_ATTR((unused)))
1049 {
1050         int ret = 0;
1051         blk_t new_blk;
1052
1053
1054         new_blk = transalate_block(*block_nr);
1055         if (new_blk) {
1056                 *block_nr = new_blk;
1057                 /*
1058                  * This will force the ext2fs_write_inode in the iterator
1059                  */
1060                 ret |= BLOCK_CHANGED;
1061         }
1062
1063         return ret;
1064 }
1065
1066 static int inode_scan_and_fix(ext2_filsys fs)
1067 {
1068         errcode_t retval = 0;
1069         ext2_ino_t ino;
1070         blk_t blk;
1071         char *block_buf = 0;
1072         struct ext2_inode inode;
1073         ext2_inode_scan scan = NULL;
1074
1075         retval = ext2fs_get_mem(fs->blocksize * 3, &block_buf);
1076         if (retval)
1077                 return retval;
1078
1079         retval = ext2fs_open_inode_scan(fs, 0, &scan);
1080         if (retval)
1081                 goto err_out;
1082
1083         while (1) {
1084
1085                 retval = ext2fs_get_next_inode(scan, &ino, &inode);
1086                 if (retval)
1087                         goto err_out;
1088
1089                 if (!ino)
1090                         break;
1091
1092                 if (inode.i_links_count == 0)
1093                         continue; /* inode not in use */
1094
1095                 /* FIXME!!
1096                  * If we end up modifying the journal inode
1097                  * the sb->s_jnl_blocks will differ. But a
1098                  * subsequent e2fsck fixes that.
1099                  * Do we need to fix this ??
1100                  */
1101
1102                 if (inode.i_file_acl) {
1103
1104                         blk = transalate_block(inode.i_file_acl);
1105                         if (!blk)
1106                                 continue;
1107
1108                         inode.i_file_acl = blk;
1109
1110                         /*
1111                          * Write the inode to disk so that inode table
1112                          * resizing can work
1113                          */
1114                         retval = ext2fs_write_inode(fs, ino, &inode);
1115                         if (retval)
1116                                 goto err_out;
1117                 }
1118
1119                 if (!ext2fs_inode_has_valid_blocks(&inode))
1120                         continue;
1121
1122                 retval = ext2fs_block_iterate2(fs, ino, 0,
1123                                                 block_buf, process_block,
1124                                                 0);
1125                 if (retval)
1126                         goto err_out;
1127
1128         }
1129
1130 err_out:
1131         ext2fs_free_mem(&block_buf);
1132
1133         return retval;
1134
1135 }
1136
1137 static int expand_inode_table(ext2_filsys fs, unsigned long new_ino_size)
1138 {
1139         dgrp_t i;
1140         blk_t blk;
1141         errcode_t retval;
1142         int new_ino_blks_per_grp;
1143         unsigned int j;
1144         char *old_itable = NULL, *new_itable = NULL;
1145         char *tmp_old_itable = NULL, *tmp_new_itable = NULL;
1146         unsigned long old_ino_size;
1147         int old_itable_size, new_itable_size;
1148
1149         old_itable_size = fs->inode_blocks_per_group * fs->blocksize;
1150         old_ino_size = EXT2_INODE_SIZE(fs->super);
1151
1152         new_ino_blks_per_grp = ext2fs_div_ceil(
1153                                         EXT2_INODES_PER_GROUP(fs->super) *
1154                                         new_ino_size,
1155                                         fs->blocksize);
1156
1157         new_itable_size = new_ino_blks_per_grp * fs->blocksize;
1158
1159         retval = ext2fs_get_mem(old_itable_size, &old_itable);
1160         if (retval)
1161                 return retval;
1162
1163         retval = ext2fs_get_mem(new_itable_size, &new_itable);
1164         if (retval)
1165                 goto err_out;
1166
1167         tmp_old_itable = old_itable;
1168         tmp_new_itable = new_itable;
1169
1170         for (i = 0; i < fs->group_desc_count; i++) {
1171
1172                 blk = fs->group_desc[i].bg_inode_table;
1173                 retval = io_channel_read_blk(fs->io, blk,
1174                                 fs->inode_blocks_per_group, old_itable);
1175                 if (retval)
1176                         goto err_out;
1177
1178                 for (j = 0; j < EXT2_INODES_PER_GROUP(fs->super); j++) {
1179
1180                         memcpy(new_itable, old_itable, old_ino_size);
1181
1182                         memset(new_itable+old_ino_size, 0,
1183                                         new_ino_size - old_ino_size);
1184
1185                         new_itable += new_ino_size;
1186                         old_itable += old_ino_size;
1187                 }
1188
1189                 /* reset the pointer */
1190                 old_itable = tmp_old_itable;
1191                 new_itable = tmp_new_itable;
1192
1193                 retval = io_channel_write_blk(fs->io, blk,
1194                                         new_ino_blks_per_grp, new_itable);
1195                 if (retval)
1196                         goto err_out;
1197         }
1198
1199         /* Update the meta data */
1200         fs->inode_blocks_per_group = new_ino_blks_per_grp;
1201         fs->super->s_inode_size = new_ino_size;
1202
1203 err_out:
1204         if (old_itable)
1205                 ext2fs_free_mem(&old_itable);
1206
1207         if (new_itable)
1208                 ext2fs_free_mem(&new_itable);
1209
1210         return retval;
1211 }
1212
1213 static errcode_t ext2fs_calculate_summary_stats(ext2_filsys fs)
1214 {
1215         blk_t           blk;
1216         ext2_ino_t      ino;
1217         unsigned int    group = 0;
1218         unsigned int    count = 0;
1219         int             total_free = 0;
1220         int             group_free = 0;
1221
1222         /*
1223          * First calculate the block statistics
1224          */
1225         for (blk = fs->super->s_first_data_block;
1226              blk < fs->super->s_blocks_count; blk++) {
1227                 if (!ext2fs_fast_test_block_bitmap(fs->block_map, blk)) {
1228                         group_free++;
1229                         total_free++;
1230                 }
1231                 count++;
1232                 if ((count == fs->super->s_blocks_per_group) ||
1233                     (blk == fs->super->s_blocks_count-1)) {
1234                         fs->group_desc[group++].bg_free_blocks_count =
1235                                 group_free;
1236                         count = 0;
1237                         group_free = 0;
1238                 }
1239         }
1240         fs->super->s_free_blocks_count = total_free;
1241
1242         /*
1243          * Next, calculate the inode statistics
1244          */
1245         group_free = 0;
1246         total_free = 0;
1247         count = 0;
1248         group = 0;
1249
1250         /* Protect loop from wrap-around if s_inodes_count maxed */
1251         for (ino = 1; ino <= fs->super->s_inodes_count && ino > 0; ino++) {
1252                 if (!ext2fs_fast_test_inode_bitmap(fs->inode_map, ino)) {
1253                         group_free++;
1254                         total_free++;
1255                 }
1256                 count++;
1257                 if ((count == fs->super->s_inodes_per_group) ||
1258                     (ino == fs->super->s_inodes_count)) {
1259                         fs->group_desc[group++].bg_free_inodes_count =
1260                                 group_free;
1261                         count = 0;
1262                         group_free = 0;
1263                 }
1264         }
1265         fs->super->s_free_inodes_count = total_free;
1266         ext2fs_mark_super_dirty(fs);
1267         return 0;
1268 }
1269
1270 #define list_for_each_safe(pos, pnext, head) \
1271         for (pos = (head)->next, pnext = pos->next; pos != (head); \
1272              pos = pnext, pnext = pos->next)
1273
1274 static void free_blk_move_list(void)
1275 {
1276         struct list_head *entry, *tmp;
1277         struct blk_move *bmv;
1278
1279         list_for_each_safe(entry, tmp, &blk_move_list) {
1280
1281                 bmv = list_entry(entry, struct blk_move, list);
1282                 list_del(entry);
1283                 ext2fs_free_mem(&bmv);
1284         }
1285
1286         return ;
1287 }
1288
1289 static int resize_inode(ext2_filsys fs, unsigned long new_size)
1290 {
1291         errcode_t retval;
1292         int new_ino_blks_per_grp;
1293         ext2fs_block_bitmap bmap;
1294
1295         if (new_size <= EXT2_INODE_SIZE(fs->super)) {
1296                 fprintf(stderr, _("New inode size too small\n"));
1297                 return EXT2_ET_INVALID_ARGUMENT;
1298         }
1299
1300         ext2fs_read_inode_bitmap(fs);
1301         ext2fs_read_block_bitmap(fs);
1302         INIT_LIST_HEAD(&blk_move_list);
1303
1304
1305         new_ino_blks_per_grp = ext2fs_div_ceil(
1306                                         EXT2_INODES_PER_GROUP(fs->super)*
1307                                         new_size,
1308                                         fs->blocksize);
1309
1310         /* We may change the file system.
1311          * Mark the file system as invalid so that
1312          * the user is prompted to run fsck.
1313          */
1314         fs->super->s_state &= ~EXT2_VALID_FS;
1315
1316         retval = ext2fs_allocate_block_bitmap(fs, _("blocks to be moved"),
1317                                                 &bmap);
1318         if (retval)
1319                 return retval;
1320
1321         retval = get_move_bitmap(fs, new_ino_blks_per_grp, bmap);
1322         if (retval)
1323                 goto err_out;
1324
1325         retval = move_block(fs, bmap);
1326         if (retval)
1327                 goto err_out;
1328
1329         retval = inode_scan_and_fix(fs);
1330         if (retval)
1331                 goto err_out;
1332
1333         retval = expand_inode_table(fs, new_size);
1334         if (retval)
1335                 goto err_out;
1336
1337         ext2fs_calculate_summary_stats(fs);
1338
1339         fs->super->s_state |= EXT2_VALID_FS;
1340         /* mark super block and block bitmap as dirty */
1341         ext2fs_mark_super_dirty(fs);
1342         ext2fs_mark_bb_dirty(fs);
1343
1344 err_out:
1345         free_blk_move_list();
1346         ext2fs_free_block_bitmap(bmap);
1347
1348         return retval;
1349 }
1350
1351 static int tune2fs_setup_tdb(const char *name, io_manager *io_ptr)
1352 {
1353         errcode_t retval = 0;
1354         const char *tdb_dir;
1355         char tdb_file[PATH_MAX];
1356         char *dev_name, *tmp_name;
1357
1358 #if 0 /* FIXME!! */
1359         /*
1360          * Configuration via a conf file would be
1361          * nice
1362          */
1363         profile_get_string(profile, "scratch_files",
1364                                         "directory", 0, 0,
1365                                         &tdb_dir);
1366 #endif
1367         tmp_name = strdup(name);
1368         dev_name = basename(tmp_name);
1369
1370         tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
1371         if (!tdb_dir)
1372                 tdb_dir="/var/lib/e2fsprogs";
1373
1374         if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
1375             access(tdb_dir, W_OK))
1376                 return 0;
1377
1378         sprintf(tdb_file, "%s/tune2fs-%s.e2undo", tdb_dir, dev_name);
1379
1380         if (!access(tdb_file, F_OK)) {
1381                 if (unlink(tdb_file) < 0) {
1382                         retval = errno;
1383                         com_err(program_name, retval,
1384                                 _("while trying to delete %s"),
1385                                 tdb_file);
1386                         return retval;
1387                 }
1388         }
1389
1390         set_undo_io_backing_manager(*io_ptr);
1391         *io_ptr = undo_io_manager;
1392         set_undo_io_backup_file(tdb_file);
1393         printf(_("To undo the tune2fs operations please run "
1394                  "the command\n    e2undo %s %s\n\n"),
1395                  tdb_file, name);
1396         free(tmp_name);
1397         return retval;
1398 }
1399
1400 int main (int argc, char ** argv)
1401 {
1402         errcode_t retval;
1403         ext2_filsys fs;
1404         struct ext2_super_block *sb;
1405         io_manager io_ptr;
1406
1407 #ifdef ENABLE_NLS
1408         setlocale(LC_MESSAGES, "");
1409         setlocale(LC_CTYPE, "");
1410         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
1411         textdomain(NLS_CAT_NAME);
1412 #endif
1413         if (argc && *argv)
1414                 program_name = *argv;
1415         add_error_table(&et_ext2_error_table);
1416
1417         if (strcmp(get_progname(argv[0]), "findfs") == 0)
1418                 do_findfs(argc, argv);
1419         if (strcmp(get_progname(argv[0]), "e2label") == 0)
1420                 parse_e2label_options(argc, argv);
1421         else
1422                 parse_tune2fs_options(argc, argv);
1423
1424 #ifdef CONFIG_TESTIO_DEBUG
1425         io_ptr = test_io_manager;
1426         test_io_backing_manager = unix_io_manager;
1427 #else
1428         io_ptr = unix_io_manager;
1429 #endif
1430
1431         if (I_flag) {
1432                 /*
1433                  * If inode resize is requested use the
1434                  * Undo I/O manager
1435                  */
1436                 retval = tune2fs_setup_tdb(device_name, &io_ptr);
1437                 if (retval)
1438                         exit(1);
1439         }
1440
1441         retval = ext2fs_open2(device_name, io_options, open_flag,
1442                               0, 0, io_ptr, &fs);
1443         if (retval) {
1444                 com_err (program_name, retval, _("while trying to open %s"),
1445                          device_name);
1446                 fprintf(stderr,
1447                         _("Couldn't find valid filesystem superblock.\n"));
1448                 exit(1);
1449         }
1450         sb = fs->super;
1451         fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1452
1453         if (print_label) {
1454                 /* For e2label emulation */
1455                 printf("%.*s\n", (int) sizeof(sb->s_volume_name),
1456                        sb->s_volume_name);
1457                 remove_error_table(&et_ext2_error_table);
1458                 exit(0);
1459         }
1460
1461         retval = ext2fs_check_if_mounted(device_name, &mount_flags);
1462         if (retval) {
1463                 com_err("ext2fs_check_if_mount", retval,
1464                         _("while determining whether %s is mounted."),
1465                         device_name);
1466                 exit(1);
1467         }
1468         /* Normally we only need to write out the superblock */
1469         fs->flags |= EXT2_FLAG_SUPER_ONLY;
1470
1471         if (c_flag) {
1472                 sb->s_max_mnt_count = max_mount_count;
1473                 ext2fs_mark_super_dirty(fs);
1474                 printf (_("Setting maximal mount count to %d\n"),
1475                         max_mount_count);
1476         }
1477         if (C_flag) {
1478                 sb->s_mnt_count = mount_count;
1479                 ext2fs_mark_super_dirty(fs);
1480                 printf (_("Setting current mount count to %d\n"), mount_count);
1481         }
1482         if (e_flag) {
1483                 sb->s_errors = errors;
1484                 ext2fs_mark_super_dirty(fs);
1485                 printf (_("Setting error behavior to %d\n"), errors);
1486         }
1487         if (g_flag) {
1488                 sb->s_def_resgid = resgid;
1489                 ext2fs_mark_super_dirty(fs);
1490                 printf (_("Setting reserved blocks gid to %lu\n"), resgid);
1491         }
1492         if (i_flag) {
1493                 sb->s_checkinterval = interval;
1494                 ext2fs_mark_super_dirty(fs);
1495                 printf (_("Setting interval between checks to %lu seconds\n"), interval);
1496         }
1497         if (m_flag) {
1498                 sb->s_r_blocks_count = (unsigned int) (reserved_ratio *
1499                                         sb->s_blocks_count / 100.0);
1500                 ext2fs_mark_super_dirty(fs);
1501                 printf (_("Setting reserved blocks percentage to %g%% (%u blocks)\n"),
1502                         reserved_ratio, sb->s_r_blocks_count);
1503         }
1504         if (r_flag) {
1505                 if (reserved_blocks >= sb->s_blocks_count/2) {
1506                         com_err (program_name, 0,
1507                                  _("reserved blocks count is too big (%lu)"),
1508                                  reserved_blocks);
1509                         exit (1);
1510                 }
1511                 sb->s_r_blocks_count = reserved_blocks;
1512                 ext2fs_mark_super_dirty(fs);
1513                 printf (_("Setting reserved blocks count to %lu\n"),
1514                         reserved_blocks);
1515         }
1516         if (s_flag == 1) {
1517                 if (sb->s_feature_ro_compat &
1518                     EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)
1519                         fputs(_("\nThe filesystem already has sparse "
1520                                 "superblocks.\n"), stderr);
1521                 else {
1522                         sb->s_feature_ro_compat |=
1523                                 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
1524                         sb->s_state &= ~EXT2_VALID_FS;
1525                         ext2fs_mark_super_dirty(fs);
1526                         printf(_("\nSparse superblock flag set.  %s"),
1527                                _(please_fsck));
1528                 }
1529         }
1530         if (s_flag == 0) {
1531                 fputs(_("\nClearing the sparse superflag not supported.\n"),
1532                       stderr);
1533                 exit(1);
1534         }
1535         if (T_flag) {
1536                 sb->s_lastcheck = last_check_time;
1537                 ext2fs_mark_super_dirty(fs);
1538                 printf(_("Setting time filesystem last checked to %s\n"),
1539                        ctime(&last_check_time));
1540         }
1541         if (u_flag) {
1542                 sb->s_def_resuid = resuid;
1543                 ext2fs_mark_super_dirty(fs);
1544                 printf (_("Setting reserved blocks uid to %lu\n"), resuid);
1545         }
1546         if (L_flag) {
1547                 if (strlen(new_label) > sizeof(sb->s_volume_name))
1548                         fputs(_("Warning: label too long, truncating.\n"),
1549                               stderr);
1550                 memset(sb->s_volume_name, 0, sizeof(sb->s_volume_name));
1551                 strncpy(sb->s_volume_name, new_label,
1552                         sizeof(sb->s_volume_name));
1553                 ext2fs_mark_super_dirty(fs);
1554         }
1555         if (M_flag) {
1556                 memset(sb->s_last_mounted, 0, sizeof(sb->s_last_mounted));
1557                 strncpy(sb->s_last_mounted, new_last_mounted,
1558                         sizeof(sb->s_last_mounted));
1559                 ext2fs_mark_super_dirty(fs);
1560         }
1561         if (mntopts_cmd)
1562                 update_mntopts(fs, mntopts_cmd);
1563         if (features_cmd)
1564                 update_feature_set(fs, features_cmd);
1565         if (extended_cmd)
1566                 parse_extended_opts(fs, extended_cmd);
1567         if (journal_size || journal_device)
1568                 add_journal(fs);
1569
1570         if (U_flag) {
1571                 if ((strcasecmp(new_UUID, "null") == 0) ||
1572                     (strcasecmp(new_UUID, "clear") == 0)) {
1573                         uuid_clear(sb->s_uuid);
1574                 } else if (strcasecmp(new_UUID, "time") == 0) {
1575                         uuid_generate_time(sb->s_uuid);
1576                 } else if (strcasecmp(new_UUID, "random") == 0) {
1577                         uuid_generate(sb->s_uuid);
1578                 } else if (uuid_parse(new_UUID, sb->s_uuid)) {
1579                         com_err(program_name, 0, _("Invalid UUID format\n"));
1580                         exit(1);
1581                 }
1582                 ext2fs_mark_super_dirty(fs);
1583         }
1584         if (I_flag) {
1585                 if (mount_flags & EXT2_MF_MOUNTED) {
1586                         fputs(_("The inode size may only be "
1587                                 "changed when the filesystem is "
1588                                 "unmounted.\n"), stderr);
1589                         exit(1);
1590                 }
1591                 /*
1592                  * We want to update group descriptor also
1593                  * with the new free inode count
1594                  */
1595                 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
1596                 if (resize_inode(fs, new_inode_size)) {
1597                         fputs(_("Error in resizing the inode size.\n"
1598                                 "Run e2undo to undo the "
1599                                 "file system changes. \n"), stderr);
1600                 } else {
1601                         printf (_("Setting inode size %lu\n"),
1602                                                         new_inode_size);
1603                 }
1604         }
1605
1606         if (l_flag)
1607                 list_super (sb);
1608         if (stride_set) {
1609                 sb->s_raid_stride = stride;
1610                 ext2fs_mark_super_dirty(fs);
1611                 printf(_("Setting stride size to %d\n"), stride);
1612         }
1613         if (stripe_width_set) {
1614                 sb->s_raid_stripe_width = stripe_width;
1615                 ext2fs_mark_super_dirty(fs);
1616                 printf(_("Setting stripe width to %d\n"), stripe_width);
1617         }
1618         remove_error_table(&et_ext2_error_table);
1619         return (ext2fs_close (fs) ? 1 : 0);
1620 }