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 setting the flag and creating the
 393                  * journal.  We supply a default size if necessary.
 394                  */
 395                 if (!journal_size)
 396                         journal_size = -1;
 397                 sb->s_feature_compat &= ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
 398         }
 399
 400         if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_DIR_INDEX)) {
 401                 if (!sb->s_def_hash_version)
 402                         sb->s_def_hash_version = EXT2_HASH_HALF_MD4;
 403                 if (uuid_is_null((unsigned char *) sb->s_hash_seed))
 404                         uuid_generate((unsigned char *) sb->s_hash_seed);
 405         }
 406
 407         if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_FLEX_BG)) {
 408                 if (ext2fs_check_desc(fs)) {
 409                         fputs(_("Clearing the flex_bg flag would "
 410                                 "cause the the filesystem to be\n"
 411                                 "inconsistent.\n"), stderr);
 412                         exit(1);
 413                 }
 414         }
 415
 416         if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
 417                             EXT4_FEATURE_RO_COMPAT_HUGE_FILE)) {
 418                 if ((mount_flags & EXT2_MF_MOUNTED) &&
 419                     !(mount_flags & EXT2_MF_READONLY)) {
 420                         fputs(_("The huge_file feature may only be "
 421                                 "cleared when the filesystem is\n"
 422                                 "unmounted or mounted "
 423                                 "read-only.\n"), stderr);
 424                         exit(1);
 425                 }
 426         }
 427
 428         if (sb->s_rev_level == EXT2_GOOD_OLD_REV &&
 429             (sb->s_feature_compat || sb->s_feature_ro_compat ||
 430              sb->s_feature_incompat))
 431                 ext2fs_update_dynamic_rev(fs);
 432
 433         if (FEATURE_CHANGED(E2P_FEATURE_RO_INCOMPAT,
 434                             EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) ||
 435             FEATURE_CHANGED(E2P_FEATURE_RO_INCOMPAT,
 436                             EXT4_FEATURE_RO_COMPAT_GDT_CSUM) ||
 437             FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
 438                         EXT4_FEATURE_RO_COMPAT_HUGE_FILE) ||
 439             FEATURE_CHANGED(E2P_FEATURE_INCOMPAT,
 440                             EXT2_FEATURE_INCOMPAT_FILETYPE) ||
 441             FEATURE_CHANGED(E2P_FEATURE_COMPAT,
 442                             EXT2_FEATURE_COMPAT_RESIZE_INODE) ||
 443             FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
 444                         EXT2_FEATURE_RO_COMPAT_LARGE_FILE)) {
 445                 sb->s_state &= ~EXT2_VALID_FS;
 446                 printf("\n%s\n", _(please_fsck));
 447                 if (mount_flags & EXT2_MF_READONLY)
 448                         printf(_("(and reboot afterwards!)\n"));
 449         }
 450
 451         if ((old_features[E2P_FEATURE_COMPAT] != sb->s_feature_compat) ||
 452             (old_features[E2P_FEATURE_INCOMPAT] != sb->s_feature_incompat) ||
 453             (old_features[E2P_FEATURE_RO_INCOMPAT] != sb->s_feature_ro_compat))
 454                 ext2fs_mark_super_dirty(fs);
 455 }
 456
 457 /*
 458  * Add a journal to the filesystem.
 459  */
 460 static void add_journal(ext2_filsys fs)
 461 {
 462         unsigned long journal_blocks;
 463         errcode_t       retval;
 464         ext2_filsys     jfs;
 465         io_manager      io_ptr;
 466
 467         if (fs->super->s_feature_compat &
 468             EXT3_FEATURE_COMPAT_HAS_JOURNAL) {
 469                 fputs(_("The filesystem already has a journal.\n"), stderr);
 470                 goto err;
 471         }
 472         if (journal_device) {
 473                 check_plausibility(journal_device);
 474                 check_mount(journal_device, 0, _("journal"));
 475 #ifdef CONFIG_TESTIO_DEBUG
 476                 io_ptr = test_io_manager;
 477                 test_io_backing_manager = unix_io_manager;
 478 #else
 479                 io_ptr = unix_io_manager;
 480 #endif
 481                 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
 482                                      EXT2_FLAG_JOURNAL_DEV_OK, 0,
 483                                      fs->blocksize, io_ptr, &jfs);
 484                 if (retval) {
 485                         com_err(program_name, retval,
 486                                 _("\n\twhile trying to open journal on %s\n"),
 487                                 journal_device);
 488                         goto err;
 489                 }
 490                 printf(_("Creating journal on device %s: "),
 491                        journal_device);
 492                 fflush(stdout);
 493
 494                 retval = ext2fs_add_journal_device(fs, jfs);
 495                 ext2fs_close(jfs);
 496                 if (retval) {
 497                         com_err (program_name, retval,
 498                                  _("while adding filesystem to journal on %s"),
 499                                  journal_device);
 500                         goto err;
 501                 }
 502                 fputs(_("done\n"), stdout);
 503         } else if (journal_size) {
 504                 fputs(_("Creating journal inode: "), stdout);
 505                 fflush(stdout);
 506                 journal_blocks = figure_journal_size(journal_size, fs);
 507
 508                 retval = ext2fs_add_journal_inode(fs, journal_blocks,
 509                                                   journal_flags);
 510                 if (retval) {
 511                         fprintf(stderr, "\n");
 512                         com_err(program_name, retval,
 513                                 _("\n\twhile trying to create journal file"));
 514                         exit(1);
 515                 } else
 516                         fputs(_("done\n"), stdout);
 517                 /*
 518                  * If the filesystem wasn't mounted, we need to force
 519                  * the block group descriptors out.
 520                  */
 521                 if ((mount_flags & EXT2_MF_MOUNTED) == 0)
 522                         fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
 523         }
 524         print_check_message(fs);
 525         return;
 526
 527 err:
 528         if (journal_device)
 529                 free(journal_device);
 530         exit(1);
 531 }
 532
 533
 534 static void parse_e2label_options(int argc, char ** argv)
 535 {
 536         if ((argc < 2) || (argc > 3)) {
 537                 fputs(_("Usage: e2label device [newlabel]\n"), stderr);
 538                 exit(1);
 539         }
 540         io_options = strchr(argv[1], '?');
 541         if (io_options)
 542                 *io_options++ = 0;
 543         device_name = blkid_get_devname(NULL, argv[1], NULL);
 544         if (!device_name) {
 545                 com_err("e2label", 0, _("Unable to resolve '%s'"),
 546                         argv[1]);
 547                 exit(1);
 548         }
 549         open_flag = EXT2_FLAG_JOURNAL_DEV_OK;
 550         if (argc == 3) {
 551                 open_flag |= EXT2_FLAG_RW;
 552                 L_flag = 1;
 553                 new_label = argv[2];
 554         } else
 555                 print_label++;
 556 }
 557
 558 static time_t parse_time(char *str)
 559 {
 560         struct  tm      ts;
 561
 562         if (strcmp(str, "now") == 0) {
 563                 return (time(0));
 564         }
 565         memset(&ts, 0, sizeof(ts));
 566 #ifdef HAVE_STRPTIME
 567         strptime(str, "%Y%m%d%H%M%S", &ts);
 568 #else
 569         sscanf(str, "%4d%2d%2d%2d%2d%2d", &ts.tm_year, &ts.tm_mon,
 570                &ts.tm_mday, &ts.tm_hour, &ts.tm_min, &ts.tm_sec);
 571         ts.tm_year -= 1900;
 572         ts.tm_mon -= 1;
 573         if (ts.tm_year < 0 || ts.tm_mon < 0 || ts.tm_mon > 11 ||
 574             ts.tm_mday < 0 || ts.tm_mday > 31 || ts.tm_hour > 23 ||
 575             ts.tm_min > 59 || ts.tm_sec > 61)
 576                 ts.tm_mday = 0;
 577 #endif
 578         if (ts.tm_mday == 0) {
 579                 com_err(program_name, 0,
 580                         _("Couldn't parse date/time specifier: %s"),
 581                         str);
 582                 usage();
 583         }
 584         ts.tm_isdst = -1;
 585         return (mktime(&ts));
 586 }
 587
 588 static void parse_tune2fs_options(int argc, char **argv)
 589 {
 590         int c;
 591         char * tmp;
 592         struct group * gr;
 593         struct passwd * pw;
 594
 595         open_flag = 0;
 596
 597         printf("tune2fs %s (%s)\n", E2FSPROGS_VERSION, E2FSPROGS_DATE);
 598         while ((c = getopt(argc, argv, "c:e:fg:i:jlm:o:r:s:u:C:E:I:J:L:M:O:T:U:")) != EOF)
 599                 switch (c)
 600                 {
 601                         case 'c':
 602                                 max_mount_count = strtol (optarg, &tmp, 0);
 603                                 if (*tmp || max_mount_count > 16000) {
 604                                         com_err (program_name, 0,
 605                                                  _("bad mounts count - %s"),
 606                                                  optarg);
 607                                         usage();
 608                                 }
 609                                 if (max_mount_count == 0)
 610                                         max_mount_count = -1;
 611                                 c_flag = 1;
 612                                 open_flag = EXT2_FLAG_RW;
 613                                 break;
 614                         case 'C':
 615                                 mount_count = strtoul (optarg, &tmp, 0);
 616                                 if (*tmp || mount_count > 16000) {
 617                                         com_err (program_name, 0,
 618                                                  _("bad mounts count - %s"),
 619                                                  optarg);
 620                                         usage();
 621                                 }
 622                                 C_flag = 1;
 623                                 open_flag = EXT2_FLAG_RW;
 624                                 break;
 625                         case 'e':
 626                                 if (strcmp (optarg, "continue") == 0)
 627                                         errors = EXT2_ERRORS_CONTINUE;
 628                                 else if (strcmp (optarg, "remount-ro") == 0)
 629                                         errors = EXT2_ERRORS_RO;
 630                                 else if (strcmp (optarg, "panic") == 0)
 631                                         errors = EXT2_ERRORS_PANIC;
 632                                 else {
 633                                         com_err (program_name, 0,
 634                                                  _("bad error behavior - %s"),
 635                                                  optarg);
 636                                         usage();
 637                                 }
 638                                 e_flag = 1;
 639                                 open_flag = EXT2_FLAG_RW;
 640                                 break;
 641                         case 'E':
 642                                 extended_cmd = optarg;
 643                                 open_flag |= EXT2_FLAG_RW;
 644                                 break;
 645                         case 'f': /* Force */
 646                                 f_flag = 1;
 647                                 break;
 648                         case 'g':
 649                                 resgid = strtoul (optarg, &tmp, 0);
 650                                 if (*tmp) {
 651                                         gr = getgrnam (optarg);
 652                                         if (gr == NULL)
 653                                                 tmp = optarg;
 654                                         else {
 655                                                 resgid = gr->gr_gid;
 656                                                 *tmp =0;
 657                                         }
 658                                 }
 659                                 if (*tmp) {
 660                                         com_err (program_name, 0,
 661                                                  _("bad gid/group name - %s"),
 662                                                  optarg);
 663                                         usage();
 664                                 }
 665                                 g_flag = 1;
 666                                 open_flag = EXT2_FLAG_RW;
 667                                 break;
 668                         case 'i':
 669                                 interval = strtoul (optarg, &tmp, 0);
 670                                 switch (*tmp) {
 671                                 case 's':
 672                                         tmp++;
 673                                         break;
 674                                 case '\0':
 675                                 case 'd':
 676                                 case 'D': /* days */
 677                                         interval *= 86400;
 678                                         if (*tmp != '\0')
 679                                                 tmp++;
 680                                         break;
 681                                 case 'm':
 682                                 case 'M': /* months! */
 683                                         interval *= 86400 * 30;
 684                                         tmp++;
 685                                         break;
 686                                 case 'w':
 687                                 case 'W': /* weeks */
 688                                         interval *= 86400 * 7;
 689                                         tmp++;
 690                                         break;
 691                                 }
 692                                 if (*tmp) {
 693                                         com_err (program_name, 0,
 694                                                 _("bad interval - %s"), optarg);
 695                                         usage();
 696                                 }
 697                                 i_flag = 1;
 698                                 open_flag = EXT2_FLAG_RW;
 699                                 break;
 700                         case 'j':
 701                                 if (!journal_size)
 702                                         journal_size = -1;
 703                                 open_flag = EXT2_FLAG_RW;
 704                                 break;
 705                         case 'J':
 706                                 parse_journal_opts(optarg);
 707                                 open_flag = EXT2_FLAG_RW;
 708                                 break;
 709                         case 'l':
 710                                 l_flag = 1;
 711                                 break;
 712                         case 'L':
 713                                 new_label = optarg;
 714                                 L_flag = 1;
 715                                 open_flag |= EXT2_FLAG_RW |
 716                                         EXT2_FLAG_JOURNAL_DEV_OK;
 717                                 break;
 718                         case 'm':
 719                                 reserved_ratio = strtod(optarg, &tmp);
 720                                 if (*tmp || reserved_ratio > 50) {
 721                                         com_err (program_name, 0,
 722                                                  _("bad reserved block ratio - %s"),
 723                                                  optarg);
 724                                         usage();
 725                                 }
 726                                 m_flag = 1;
 727                                 open_flag = EXT2_FLAG_RW;
 728                                 break;
 729                         case 'M':
 730                                 new_last_mounted = optarg;
 731                                 M_flag = 1;
 732                                 open_flag = EXT2_FLAG_RW;
 733                                 break;
 734                         case 'o':
 735                                 if (mntopts_cmd) {
 736                                         com_err (program_name, 0,
 737                                          _("-o may only be specified once"));
 738                                         usage();
 739                                 }
 740                                 mntopts_cmd = optarg;
 741                                 open_flag = EXT2_FLAG_RW;
 742                                 break;
 743
 744                         case 'O':
 745                                 if (features_cmd) {
 746                                         com_err (program_name, 0,
 747                                          _("-O may only be specified once"));
 748                                         usage();
 749                                 }
 750                                 features_cmd = optarg;
 751                                 open_flag = EXT2_FLAG_RW;
 752                                 break;
 753                         case 'r':
 754                                 reserved_blocks = strtoul (optarg, &tmp, 0);
 755                                 if (*tmp) {
 756                                         com_err (program_name, 0,
 757                                                  _("bad reserved blocks count - %s"),
 758                                                  optarg);
 759                                         usage();
 760                                 }
 761                                 r_flag = 1;
 762                                 open_flag = EXT2_FLAG_RW;
 763                                 break;
 764                         case 's': /* Deprecated */
 765                                 s_flag = atoi(optarg);
 766                                 open_flag = EXT2_FLAG_RW;
 767                                 break;
 768                         case 'T':
 769                                 T_flag = 1;
 770                                 last_check_time = parse_time(optarg);
 771                                 open_flag = EXT2_FLAG_RW;
 772                                 break;
 773                         case 'u':
 774                                 resuid = strtoul (optarg, &tmp, 0);
 775                                 if (*tmp) {
 776                                         pw = getpwnam (optarg);
 777                                         if (pw == NULL)
 778                                                 tmp = optarg;
 779                                         else {
 780                                                 resuid = pw->pw_uid;
 781                                                 *tmp = 0;
 782                                         }
 783                                 }
 784                                 if (*tmp) {
 785                                         com_err (program_name, 0,
 786                                                  _("bad uid/user name - %s"),
 787                                                  optarg);
 788                                         usage();
 789                                 }
 790                                 u_flag = 1;
 791                                 open_flag = EXT2_FLAG_RW;
 792                                 break;
 793                         case 'U':
 794                                 new_UUID = optarg;
 795                                 U_flag = 1;
 796                                 open_flag = EXT2_FLAG_RW |
 797                                         EXT2_FLAG_JOURNAL_DEV_OK;
 798                                 break;
 799                         case 'I':
 800                                 new_inode_size = strtoul (optarg, &tmp, 0);
 801                                 if (*tmp) {
 802                                         com_err (program_name, 0,
 803                                                 _("bad inode size - %s"),
 804                                                         optarg);
 805                                         usage();
 806                                 }
 807                                 if (!((new_inode_size &
 808                                                 (new_inode_size - 1)) == 0)) {
 809                                         com_err (program_name, 0,
 810                                                 _("Inode size must be a "
 811                                                 "power of two- %s"),
 812                                                         optarg);
 813                                         usage();
 814                                 }
 815                                 open_flag = EXT2_FLAG_RW;
 816                                 I_flag = 1;
 817                                 break;
 818                         default:
 819                                 usage();
 820                 }
 821         if (optind < argc - 1 || optind == argc)
 822                 usage();
 823         if (!open_flag && !l_flag)
 824                 usage();
 825         io_options = strchr(argv[optind], '?');
 826         if (io_options)
 827                 *io_options++ = 0;
 828         device_name = blkid_get_devname(NULL, argv[optind], NULL);
 829         if (!device_name) {
 830                 com_err("tune2fs", 0, _("Unable to resolve '%s'"),
 831                         argv[optind]);
 832                 exit(1);
 833         }
 834 }
 835
 836 void do_findfs(int argc, char **argv)
 837 {
 838         char    *dev;
 839
 840         if ((argc != 2) ||
 841             (strncmp(argv[1], "LABEL=", 6) && strncmp(argv[1], "UUID=", 5))) {
 842                 fprintf(stderr, "Usage: findfs LABEL=<label>|UUID=<uuid>\n");
 843                 exit(2);
 844         }
 845         dev = blkid_get_devname(NULL, argv[1], NULL);
 846         if (!dev) {
 847                 com_err("findfs", 0, _("Unable to resolve '%s'"),
 848                         argv[1]);
 849                 exit(1);
 850         }
 851         puts(dev);
 852         exit(0);
 853 }
 854
 855 static void parse_extended_opts(ext2_filsys fs, const char *opts)
 856 {
 857         char    *buf, *token, *next, *p, *arg;
 858         int     len;
 859         int     r_usage = 0;
 860
 861         len = strlen(opts);
 862         buf = malloc(len+1);
 863         if (!buf) {
 864                 fprintf(stderr,
 865                         _("Couldn't allocate memory to parse options!\n"));
 866                 exit(1);
 867         }
 868         strcpy(buf, opts);
 869         for (token = buf; token && *token; token = next) {
 870                 p = strchr(token, ',');
 871                 next = 0;
 872                 if (p) {
 873                         *p = 0;
 874                         next = p+1;
 875                 }
 876                 arg = strchr(token, '=');
 877                 if (arg) {
 878                         *arg = 0;
 879                         arg++;
 880                 }
 881                 if (!strcmp(token, "test_fs")) {
 882                         fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
 883                         printf("Setting test filesystem flag\n");
 884                         ext2fs_mark_super_dirty(fs);
 885                 } else if (!strcmp(token, "^test_fs")) {
 886                         fs->super->s_flags &= ~EXT2_FLAGS_TEST_FILESYS;
 887                         printf("Clearing test filesystem flag\n");
 888                         ext2fs_mark_super_dirty(fs);
 889                 } else if (strcmp(token, "stride") == 0) {
 890                         if (!arg) {
 891                                 r_usage++;
 892                                 continue;
 893                         }
 894                         stride = strtoul(arg, &p, 0);
 895                         if (*p || (stride == 0)) {
 896                                 fprintf(stderr,
 897                                        _("Invalid RAID stride: %s\n"),
 898                                         arg);
 899                                 r_usage++;
 900                                 continue;
 901                         }
 902                         stride_set = 1;
 903                 } else if (strcmp(token, "stripe-width") == 0 ||
 904                            strcmp(token, "stripe_width") == 0) {
 905                         if (!arg) {
 906                                 r_usage++;
 907                                 continue;
 908                         }
 909                         stripe_width = strtoul(arg, &p, 0);
 910                         if (*p || (stripe_width == 0)) {
 911                                 fprintf(stderr,
 912                                         _("Invalid RAID stripe-width: %s\n"),
 913                                         arg);
 914                                 r_usage++;
 915                                 continue;
 916                         }
 917                         stripe_width_set = 1;
 918                 } else
 919                         r_usage++;
 920         }
 921         if (r_usage) {
 922                 fprintf(stderr, _("\nBad options specified.\n\n"
 923                         "Extended options are separated by commas, "
 924                         "and may take an argument which\n"
 925                         "\tis set off by an equals ('=') sign.\n\n"
 926                         "Valid extended options are:\n"
 927                         "\tstride=<RAID per-disk chunk size in blocks>\n"
 928                         "\tstripe-width=<RAID stride*data disks in blocks>\n"
 929                         "\ttest_fs\n"
 930                         "\t^test_fs\n"));
 931                 free(buf);
 932                 exit(1);
 933         }
 934         free(buf);
 935 }
 936
 937 static int get_move_bitmap(ext2_filsys fs, int new_ino_blks_per_grp,
 938                                         ext2fs_block_bitmap bmap)
 939 {
 940         dgrp_t i;
 941         blk_t j, needed_blocks = 0;
 942         blk_t start_blk, end_blk;
 943
 944         for (i = 0; i < fs->group_desc_count; i++) {
 945
 946                 start_blk = fs->group_desc[i].bg_inode_table +
 947                                         fs->inode_blocks_per_group;
 948
 949                 end_blk = fs->group_desc[i].bg_inode_table +
 950                                         new_ino_blks_per_grp;
 951
 952                 for (j = start_blk; j < end_blk; j++) {
 953
 954                         if (ext2fs_test_block_bitmap(fs->block_map, j)) {
 955                                 /* FIXME!!
 956                                  * What happens if the block is marked
 957                                  * as a bad block
 958                                  */
 959                                 ext2fs_mark_block_bitmap(bmap, j);
 960                                 needed_blocks++;
 961                         } else {
 962                                 /*
 963                                  * We are going to use this block for
 964                                  * inode table. So mark them used.
 965                                  */
 966                                 ext2fs_mark_block_bitmap(fs->block_map, j);
 967                         }
 968                 }
 969         }
 970
 971         if (needed_blocks > fs->super->s_free_blocks_count ) {
 972                 return ENOSPC;
 973         }
 974
 975         return 0;
 976 }
 977
 978 static int move_block(ext2_filsys fs, ext2fs_block_bitmap bmap)
 979 {
 980         char *buf;
 981         errcode_t retval;
 982         blk_t blk, new_blk;
 983         struct blk_move *bmv;
 984
 985
 986         retval = ext2fs_get_mem(fs->blocksize, &buf);
 987         if (retval)
 988                 return retval;
 989
 990         for (blk = fs->super->s_first_data_block;
 991                         blk < fs->super->s_blocks_count; blk++) {
 992
 993                 if (!ext2fs_test_block_bitmap(bmap, blk))
 994                         continue;
 995
 996                 retval = ext2fs_new_block(fs, blk, NULL, &new_blk);
 997                 if (retval)
 998                         goto err_out;
 999
1000                 /* Mark this block as allocated */
1001                 ext2fs_mark_block_bitmap(fs->block_map, new_blk);
1002
1003                 /* Add it to block move list */
1004                 retval = ext2fs_get_mem(sizeof(struct blk_move), &bmv);
1005                 if (retval)
1006                         goto err_out;
1007
1008                 bmv->old_loc = blk;
1009                 bmv->new_loc = new_blk;
1010
1011                 list_add(&(bmv->list), &blk_move_list);
1012
1013                 retval = io_channel_read_blk(fs->io, blk, 1, buf);
1014                 if (retval)
1015                         goto err_out;
1016
1017                 retval = io_channel_write_blk(fs->io, new_blk, 1, buf);
1018                 if (retval)
1019                         goto err_out;
1020         }
1021
1022 err_out:
1023         ext2fs_free_mem(&buf);
1024         return retval;
1025 }
1026
1027 static blk_t transalate_block(blk_t blk)
1028 {
1029         struct list_head *entry;
1030         struct blk_move *bmv;
1031
1032         list_for_each(entry, &blk_move_list) {
1033
1034                 bmv = list_entry(entry, struct blk_move, list);
1035                 if (bmv->old_loc == blk)
1036                         return bmv->new_loc;
1037         }
1038
1039         return 0;
1040 }
1041
1042 static int process_block(ext2_filsys fs EXT2FS_ATTR((unused)),
1043                          blk_t *block_nr,
1044                          e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1045                          blk_t ref_block EXT2FS_ATTR((unused)),
1046                          int ref_offset EXT2FS_ATTR((unused)),
1047                          void *priv_data EXT2FS_ATTR((unused)))
1048 {
1049         int ret = 0;
1050         blk_t new_blk;
1051
1052
1053         new_blk = transalate_block(*block_nr);
1054         if (new_blk) {
1055                 *block_nr = new_blk;
1056                 /*
1057                  * This will force the ext2fs_write_inode in the iterator
1058                  */
1059                 ret |= BLOCK_CHANGED;
1060         }
1061
1062         return ret;
1063 }
1064
1065 static int inode_scan_and_fix(ext2_filsys fs)
1066 {
1067         errcode_t retval = 0;
1068         ext2_ino_t ino;
1069         blk_t blk;
1070         char *block_buf = 0;
1071         struct ext2_inode inode;
1072         ext2_inode_scan scan = NULL;
1073
1074         retval = ext2fs_get_mem(fs->blocksize * 3, &block_buf);
1075         if (retval)
1076                 return retval;
1077
1078         retval = ext2fs_open_inode_scan(fs, 0, &scan);
1079         if (retval)
1080                 goto err_out;
1081
1082         while (1) {
1083
1084                 retval = ext2fs_get_next_inode(scan, &ino, &inode);
1085                 if (retval)
1086                         goto err_out;
1087
1088                 if (!ino)
1089                         break;
1090
1091                 if (inode.i_links_count == 0)
1092                         continue; /* inode not in use */
1093
1094                 /* FIXME!!
1095                  * If we end up modifying the journal inode
1096                  * the sb->s_jnl_blocks will differ. But a
1097                  * subsequent e2fsck fixes that.
1098                  * Do we need to fix this ??
1099                  */
1100
1101                 if (inode.i_file_acl) {
1102
1103                         blk = transalate_block(inode.i_file_acl);
1104                         if (!blk)
1105                                 continue;
1106
1107                         inode.i_file_acl = blk;
1108
1109                         /*
1110                          * Write the inode to disk so that inode table
1111                          * resizing can work
1112                          */
1113                         retval = ext2fs_write_inode(fs, ino, &inode);
1114                         if (retval)
1115                                 goto err_out;
1116                 }
1117
1118                 if (!ext2fs_inode_has_valid_blocks(&inode))
1119                         continue;
1120
1121                 retval = ext2fs_block_iterate2(fs, ino, 0,
1122                                                 block_buf, process_block,
1123                                                 0);
1124                 if (retval)
1125                         goto err_out;
1126
1127         }
1128
1129 err_out:
1130         ext2fs_free_mem(&block_buf);
1131
1132         return retval;
1133
1134 }
1135
1136 static int expand_inode_table(ext2_filsys fs, unsigned long new_ino_size)
1137 {
1138         dgrp_t i;
1139         blk_t blk;
1140         errcode_t retval;
1141         int new_ino_blks_per_grp;
1142         unsigned int j;
1143         char *old_itable = NULL, *new_itable = NULL;
1144         char *tmp_old_itable = NULL, *tmp_new_itable = NULL;
1145         unsigned long old_ino_size;
1146         int old_itable_size, new_itable_size;
1147
1148         old_itable_size = fs->inode_blocks_per_group * fs->blocksize;
1149         old_ino_size = EXT2_INODE_SIZE(fs->super);
1150
1151         new_ino_blks_per_grp = ext2fs_div_ceil(
1152                                         EXT2_INODES_PER_GROUP(fs->super) *
1153                                         new_ino_size,
1154                                         fs->blocksize);
1155
1156         new_itable_size = new_ino_blks_per_grp * fs->blocksize;
1157
1158         retval = ext2fs_get_mem(old_itable_size, &old_itable);
1159         if (retval)
1160                 return retval;
1161
1162         retval = ext2fs_get_mem(new_itable_size, &new_itable);
1163         if (retval)
1164                 goto err_out;
1165
1166         tmp_old_itable = old_itable;
1167         tmp_new_itable = new_itable;
1168
1169         for (i = 0; i < fs->group_desc_count; i++) {
1170
1171                 blk = fs->group_desc[i].bg_inode_table;
1172                 retval = io_channel_read_blk(fs->io, blk,
1173                                 fs->inode_blocks_per_group, old_itable);
1174                 if (retval)
1175                         goto err_out;
1176
1177                 for (j = 0; j < EXT2_INODES_PER_GROUP(fs->super); j++) {
1178
1179                         memcpy(new_itable, old_itable, old_ino_size);
1180
1181                         memset(new_itable+old_ino_size, 0,
1182                                         new_ino_size - old_ino_size);
1183
1184                         new_itable += new_ino_size;
1185                         old_itable += old_ino_size;
1186                 }
1187
1188                 /* reset the pointer */
1189                 old_itable = tmp_old_itable;
1190                 new_itable = tmp_new_itable;
1191
1192                 retval = io_channel_write_blk(fs->io, blk,
1193                                         new_ino_blks_per_grp, new_itable);
1194                 if (retval)
1195                         goto err_out;
1196         }
1197
1198         /* Update the meta data */
1199         fs->inode_blocks_per_group = new_ino_blks_per_grp;
1200         fs->super->s_inode_size = new_ino_size;
1201
1202 err_out:
1203         if (old_itable)
1204                 ext2fs_free_mem(&old_itable);
1205
1206         if (new_itable)
1207                 ext2fs_free_mem(&new_itable);
1208
1209         return retval;
1210 }
1211
1212 static errcode_t ext2fs_calculate_summary_stats(ext2_filsys fs)
1213 {
1214         blk_t           blk;
1215         ext2_ino_t      ino;
1216         unsigned int    group = 0;
1217         unsigned int    count = 0;
1218         int             total_free = 0;
1219         int             group_free = 0;
1220
1221         /*
1222          * First calculate the block statistics
1223          */
1224         for (blk = fs->super->s_first_data_block;
1225              blk < fs->super->s_blocks_count; blk++) {
1226                 if (!ext2fs_fast_test_block_bitmap(fs->block_map, blk)) {
1227                         group_free++;
1228                         total_free++;
1229                 }
1230                 count++;
1231                 if ((count == fs->super->s_blocks_per_group) ||
1232                     (blk == fs->super->s_blocks_count-1)) {
1233                         fs->group_desc[group++].bg_free_blocks_count =
1234                                 group_free;
1235                         count = 0;
1236                         group_free = 0;
1237                 }
1238         }
1239         fs->super->s_free_blocks_count = total_free;
1240
1241         /*
1242          * Next, calculate the inode statistics
1243          */
1244         group_free = 0;
1245         total_free = 0;
1246         count = 0;
1247         group = 0;
1248
1249         /* Protect loop from wrap-around if s_inodes_count maxed */
1250         for (ino = 1; ino <= fs->super->s_inodes_count && ino > 0; ino++) {
1251                 if (!ext2fs_fast_test_inode_bitmap(fs->inode_map, ino)) {
1252                         group_free++;
1253                         total_free++;
1254                 }
1255                 count++;
1256                 if ((count == fs->super->s_inodes_per_group) ||
1257                     (ino == fs->super->s_inodes_count)) {
1258                         fs->group_desc[group++].bg_free_inodes_count =
1259                                 group_free;
1260                         count = 0;
1261                         group_free = 0;
1262                 }
1263         }
1264         fs->super->s_free_inodes_count = total_free;
1265         ext2fs_mark_super_dirty(fs);
1266         return 0;
1267 }
1268
1269 #define list_for_each_safe(pos, pnext, head) \
1270         for (pos = (head)->next, pnext = pos->next; pos != (head); \
1271              pos = pnext, pnext = pos->next)
1272
1273 static void free_blk_move_list(void)
1274 {
1275         struct list_head *entry, *tmp;
1276         struct blk_move *bmv;
1277
1278         list_for_each_safe(entry, tmp, &blk_move_list) {
1279
1280                 bmv = list_entry(entry, struct blk_move, list);
1281                 list_del(entry);
1282                 ext2fs_free_mem(&bmv);
1283         }
1284
1285         return ;
1286 }
1287
1288 static int resize_inode(ext2_filsys fs, unsigned long new_size)
1289 {
1290         errcode_t retval;
1291         int new_ino_blks_per_grp;
1292         ext2fs_block_bitmap bmap;
1293
1294         ext2fs_read_inode_bitmap(fs);
1295         ext2fs_read_block_bitmap(fs);
1296         INIT_LIST_HEAD(&blk_move_list);
1297
1298
1299         new_ino_blks_per_grp = ext2fs_div_ceil(
1300                                         EXT2_INODES_PER_GROUP(fs->super)*
1301                                         new_size,
1302                                         fs->blocksize);
1303
1304         /* We may change the file system.
1305          * Mark the file system as invalid so that
1306          * the user is prompted to run fsck.
1307          */
1308         fs->super->s_state &= ~EXT2_VALID_FS;
1309
1310         retval = ext2fs_allocate_block_bitmap(fs, _("blocks to be moved"),
1311                                                 &bmap);
1312         if (retval)
1313                 return retval;
1314
1315         retval = get_move_bitmap(fs, new_ino_blks_per_grp, bmap);
1316         if (retval)
1317                 goto err_out;
1318
1319         retval = move_block(fs, bmap);
1320         if (retval)
1321                 goto err_out;
1322
1323         retval = inode_scan_and_fix(fs);
1324         if (retval)
1325                 goto err_out;
1326
1327         retval = expand_inode_table(fs, new_size);
1328         if (retval)
1329                 goto err_out;
1330
1331         ext2fs_calculate_summary_stats(fs);
1332
1333         fs->super->s_state |= EXT2_VALID_FS;
1334         /* mark super block and block bitmap as dirty */
1335         ext2fs_mark_super_dirty(fs);
1336         ext2fs_mark_bb_dirty(fs);
1337
1338 err_out:
1339         free_blk_move_list();
1340         ext2fs_free_block_bitmap(bmap);
1341
1342         return retval;
1343 }
1344
1345 static int tune2fs_setup_tdb(const char *name, io_manager *io_ptr)
1346 {
1347         errcode_t retval = 0;
1348         const char *tdb_dir;
1349         char tdb_file[PATH_MAX];
1350         char *dev_name, *tmp_name;
1351
1352 #if 0 /* FIXME!! */
1353         /*
1354          * Configuration via a conf file would be
1355          * nice
1356          */
1357         profile_get_string(profile, "scratch_files",
1358                                         "directory", 0, 0,
1359                                         &tdb_dir);
1360 #endif
1361         tmp_name = strdup(name);
1362         dev_name = basename(tmp_name);
1363
1364         tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
1365         if (!tdb_dir)
1366                 tdb_dir="/var/lib/e2fsprogs";
1367
1368         if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
1369             access(tdb_dir, W_OK))
1370                 return 0;
1371
1372         sprintf(tdb_file, "%s/tune2fs-%s.e2undo", tdb_dir, dev_name);
1373
1374         if (!access(tdb_file, F_OK)) {
1375                 if (unlink(tdb_file) < 0) {
1376                         retval = errno;
1377                         com_err(program_name, retval,
1378                                 _("while trying to delete %s"),
1379                                 tdb_file);
1380                         return retval;
1381                 }
1382         }
1383
1384         set_undo_io_backing_manager(*io_ptr);
1385         *io_ptr = undo_io_manager;
1386         set_undo_io_backup_file(tdb_file);
1387         printf(_("To undo the tune2fs operations please run "
1388                  "the command\n    e2undo %s %s\n\n"),
1389                  tdb_file, name);
1390         free(tmp_name);
1391         return retval;
1392 }
1393
1394 int main (int argc, char ** argv)
1395 {
1396         errcode_t retval;
1397         ext2_filsys fs;
1398         struct ext2_super_block *sb;
1399         io_manager io_ptr, io_ptr_orig = NULL;
1400
1401 #ifdef ENABLE_NLS
1402         setlocale(LC_MESSAGES, "");
1403         setlocale(LC_CTYPE, "");
1404         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
1405         textdomain(NLS_CAT_NAME);
1406 #endif
1407         if (argc && *argv)
1408                 program_name = *argv;
1409         add_error_table(&et_ext2_error_table);
1410
1411         if (strcmp(get_progname(argv[0]), "findfs") == 0)
1412                 do_findfs(argc, argv);
1413         if (strcmp(get_progname(argv[0]), "e2label") == 0)
1414                 parse_e2label_options(argc, argv);
1415         else
1416                 parse_tune2fs_options(argc, argv);
1417
1418 #ifdef CONFIG_TESTIO_DEBUG
1419         io_ptr = test_io_manager;
1420         test_io_backing_manager = unix_io_manager;
1421 #else
1422         io_ptr = unix_io_manager;
1423 #endif
1424
1425 retry_open:
1426         retval = ext2fs_open2(device_name, io_options, open_flag,
1427                               0, 0, io_ptr, &fs);
1428         if (retval) {
1429                 com_err (program_name, retval, _("while trying to open %s"),
1430                          device_name);
1431                 fprintf(stderr,
1432                         _("Couldn't find valid filesystem superblock.\n"));
1433                 exit(1);
1434         }
1435
1436         if (I_flag && !io_ptr_orig) {
1437                 /*
1438                  * Check the inode size is right so we can issue an
1439                  * error message and bail before setting up the tdb
1440                  * file.
1441                  */
1442                 if (new_inode_size == EXT2_INODE_SIZE(fs->super)) {
1443                         fprintf(stderr, _("The inode size is already %d\n"),
1444                                 new_inode_size);
1445                         exit(1);
1446                 }
1447                 if (new_inode_size < EXT2_INODE_SIZE(fs->super)) {
1448                         fprintf(stderr, _("Shrinking the inode size is "
1449                                           "not supported\n"));
1450                         exit(1);
1451                 }
1452
1453                 /*
1454                  * If inode resize is requested use the
1455                  * Undo I/O manager
1456                  */
1457                 io_ptr_orig = io_ptr;
1458                 retval = tune2fs_setup_tdb(device_name, &io_ptr);
1459                 if (retval)
1460                         exit(1);
1461                 if (io_ptr != io_ptr_orig) {
1462                         ext2fs_close(fs);
1463                         goto retry_open;
1464                 }
1465         }
1466
1467         sb = fs->super;
1468         fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1469
1470         if (print_label) {
1471                 /* For e2label emulation */
1472                 printf("%.*s\n", (int) sizeof(sb->s_volume_name),
1473                        sb->s_volume_name);
1474                 remove_error_table(&et_ext2_error_table);
1475                 exit(0);
1476         }
1477
1478         retval = ext2fs_check_if_mounted(device_name, &mount_flags);
1479         if (retval) {
1480                 com_err("ext2fs_check_if_mount", retval,
1481                         _("while determining whether %s is mounted."),
1482                         device_name);
1483                 exit(1);
1484         }
1485         /* Normally we only need to write out the superblock */
1486         fs->flags |= EXT2_FLAG_SUPER_ONLY;
1487
1488         if (c_flag) {
1489                 sb->s_max_mnt_count = max_mount_count;
1490                 ext2fs_mark_super_dirty(fs);
1491                 printf (_("Setting maximal mount count to %d\n"),
1492                         max_mount_count);
1493         }
1494         if (C_flag) {
1495                 sb->s_mnt_count = mount_count;
1496                 ext2fs_mark_super_dirty(fs);
1497                 printf (_("Setting current mount count to %d\n"), mount_count);
1498         }
1499         if (e_flag) {
1500                 sb->s_errors = errors;
1501                 ext2fs_mark_super_dirty(fs);
1502                 printf (_("Setting error behavior to %d\n"), errors);
1503         }
1504         if (g_flag) {
1505                 sb->s_def_resgid = resgid;
1506                 ext2fs_mark_super_dirty(fs);
1507                 printf (_("Setting reserved blocks gid to %lu\n"), resgid);
1508         }
1509         if (i_flag) {
1510                 sb->s_checkinterval = interval;
1511                 ext2fs_mark_super_dirty(fs);
1512                 printf (_("Setting interval between checks to %lu seconds\n"), interval);
1513         }
1514         if (m_flag) {
1515                 sb->s_r_blocks_count = (unsigned int) (reserved_ratio *
1516                                         sb->s_blocks_count / 100.0);
1517                 ext2fs_mark_super_dirty(fs);
1518                 printf (_("Setting reserved blocks percentage to %g%% (%u blocks)\n"),
1519                         reserved_ratio, sb->s_r_blocks_count);
1520         }
1521         if (r_flag) {
1522                 if (reserved_blocks >= sb->s_blocks_count/2) {
1523                         com_err (program_name, 0,
1524                                  _("reserved blocks count is too big (%lu)"),
1525                                  reserved_blocks);
1526                         exit (1);
1527                 }
1528                 sb->s_r_blocks_count = reserved_blocks;
1529                 ext2fs_mark_super_dirty(fs);
1530                 printf (_("Setting reserved blocks count to %lu\n"),
1531                         reserved_blocks);
1532         }
1533         if (s_flag == 1) {
1534                 if (sb->s_feature_ro_compat &
1535                     EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)
1536                         fputs(_("\nThe filesystem already has sparse "
1537                                 "superblocks.\n"), stderr);
1538                 else {
1539                         sb->s_feature_ro_compat |=
1540                                 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
1541                         sb->s_state &= ~EXT2_VALID_FS;
1542                         ext2fs_mark_super_dirty(fs);
1543                         printf(_("\nSparse superblock flag set.  %s"),
1544                                _(please_fsck));
1545                 }
1546         }
1547         if (s_flag == 0) {
1548                 fputs(_("\nClearing the sparse superflag not supported.\n"),
1549                       stderr);
1550                 exit(1);
1551         }
1552         if (T_flag) {
1553                 sb->s_lastcheck = last_check_time;
1554                 ext2fs_mark_super_dirty(fs);
1555                 printf(_("Setting time filesystem last checked to %s\n"),
1556                        ctime(&last_check_time));
1557         }
1558         if (u_flag) {
1559                 sb->s_def_resuid = resuid;
1560                 ext2fs_mark_super_dirty(fs);
1561                 printf (_("Setting reserved blocks uid to %lu\n"), resuid);
1562         }
1563         if (L_flag) {
1564                 if (strlen(new_label) > sizeof(sb->s_volume_name))
1565                         fputs(_("Warning: label too long, truncating.\n"),
1566                               stderr);
1567                 memset(sb->s_volume_name, 0, sizeof(sb->s_volume_name));
1568                 strncpy(sb->s_volume_name, new_label,
1569                         sizeof(sb->s_volume_name));
1570                 ext2fs_mark_super_dirty(fs);
1571         }
1572         if (M_flag) {
1573                 memset(sb->s_last_mounted, 0, sizeof(sb->s_last_mounted));
1574                 strncpy(sb->s_last_mounted, new_last_mounted,
1575                         sizeof(sb->s_last_mounted));
1576                 ext2fs_mark_super_dirty(fs);
1577         }
1578         if (mntopts_cmd)
1579                 update_mntopts(fs, mntopts_cmd);
1580         if (features_cmd)
1581                 update_feature_set(fs, features_cmd);
1582         if (extended_cmd)
1583                 parse_extended_opts(fs, extended_cmd);
1584         if (journal_size || journal_device)
1585                 add_journal(fs);
1586
1587         if (U_flag) {
1588                 if ((strcasecmp(new_UUID, "null") == 0) ||
1589                     (strcasecmp(new_UUID, "clear") == 0)) {
1590                         uuid_clear(sb->s_uuid);
1591                 } else if (strcasecmp(new_UUID, "time") == 0) {
1592                         uuid_generate_time(sb->s_uuid);
1593                 } else if (strcasecmp(new_UUID, "random") == 0) {
1594                         uuid_generate(sb->s_uuid);
1595                 } else if (uuid_parse(new_UUID, sb->s_uuid)) {
1596                         com_err(program_name, 0, _("Invalid UUID format\n"));
1597                         exit(1);
1598                 }
1599                 ext2fs_mark_super_dirty(fs);
1600         }
1601         if (I_flag) {
1602                 if (mount_flags & EXT2_MF_MOUNTED) {
1603                         fputs(_("The inode size may only be "
1604                                 "changed when the filesystem is "
1605                                 "unmounted.\n"), stderr);
1606                         exit(1);
1607                 }
1608                 /*
1609                  * We want to update group descriptor also
1610                  * with the new free inode count
1611                  */
1612                 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
1613                 if (resize_inode(fs, new_inode_size)) {
1614                         fputs(_("Error in resizing the inode size.\n"
1615                                 "Run e2undo to undo the "
1616                                 "file system changes. \n"), stderr);
1617                 } else {
1618                         printf (_("Setting inode size %lu\n"),
1619                                                         new_inode_size);
1620                 }
1621         }
1622
1623         if (l_flag)
1624                 list_super (sb);
1625         if (stride_set) {
1626                 sb->s_raid_stride = stride;
1627                 ext2fs_mark_super_dirty(fs);
1628                 printf(_("Setting stride size to %d\n"), stride);
1629         }
1630         if (stripe_width_set) {
1631                 sb->s_raid_stripe_width = stripe_width;
1632                 ext2fs_mark_super_dirty(fs);
1633                 printf(_("Setting stripe width to %d\n"), stripe_width);
1634         }
1635         remove_error_table(&et_ext2_error_table);
1636         return (ext2fs_close (fs) ? 1 : 0);
1637 }