debugfs/debugfs.c

   1 /*
   2  * debugfs.c --- a program which allows you to attach an ext2fs
   3  * filesystem and play with it.
   4  *
   5  * Copyright (C) 1993 Theodore Ts'o.  This file may be redistributed
   6  * under the terms of the GNU Public License.
   7  *
   8  * Modifications by Robert Sanders <gt8134b@prism.gatech.edu>
   9  */
  10
  11 #include "config.h"
  12 #include <stdio.h>
  13 #include <unistd.h>
  14 #include <stdlib.h>
  15 #include <ctype.h>
  16 #include <string.h>
  17 #include <time.h>
  18 #include <libgen.h>
  19 #ifdef HAVE_GETOPT_H
  20 #include <getopt.h>
  21 #else
  22 extern int optind;
  23 extern char *optarg;
  24 #endif
  25 #ifdef HAVE_ERRNO_H
  26 #include <errno.h>
  27 #endif
  28 #include <fcntl.h>
  29 #ifdef HAVE_SYS_SYSMACROS_H
  30 #include <sys/sysmacros.h>
  31 #endif
  32
  33 #include "debugfs.h"
  34 #include "uuid/uuid.h"
  35 #include "e2p/e2p.h"
  36
  37 #include <ext2fs/ext2_ext_attr.h>
  38
  39 #include "../version.h"
  40 #include "jfs_user.h"
  41 #include "support/plausible.h"
  42
  43 #ifndef BUFSIZ
  44 #define BUFSIZ 8192
  45 #endif
  46
  47 #ifdef CONFIG_JBD_DEBUG         /* Enabled by configure --enable-jbd-debug */
  48 int journal_enable_debug = -1;
  49 #endif
  50
  51 /*
  52  * There must be only one definition if we're hooking in extra commands or
  53  * changing default prompt. Use -DSKIP_GLOBDEF for that.
  54  */
  55 #ifndef SKIP_GLOBDEFS
  56 ss_request_table *extra_cmds;
  57 const char *debug_prog_name;
  58 #endif
  59 int ss_sci_idx;
  60
  61 ext2_filsys     current_fs;
  62 quota_ctx_t     current_qctx;
  63 ext2_ino_t      root, cwd;
  64 int             no_copy_xattrs;
  65
  66 static int debugfs_setup_tdb(const char *device_name, char *undo_file,
  67                              io_manager *io_ptr)
  68 {
  69         errcode_t retval = ENOMEM;
  70         const char      *tdb_dir = NULL;
  71         char            *tdb_file = NULL;
  72         char            *dev_name, *tmp_name;
  73
  74         /* (re)open a specific undo file */
  75         if (undo_file && undo_file[0] != 0) {
  76                 retval = set_undo_io_backing_manager(*io_ptr);
  77                 if (retval)
  78                         goto err;
  79                 *io_ptr = undo_io_manager;
  80                 retval = set_undo_io_backup_file(undo_file);
  81                 if (retval)
  82                         goto err;
  83                 printf("Overwriting existing filesystem; this can be undone "
  84                         "using the command:\n"
  85                         "    e2undo %s %s\n\n",
  86                         undo_file, device_name);
  87                 return retval;
  88         }
  89
  90         /*
  91          * Configuration via a conf file would be
  92          * nice
  93          */
  94         tdb_dir = ss_safe_getenv("E2FSPROGS_UNDO_DIR");
  95         if (!tdb_dir)
  96                 tdb_dir = "/var/lib/e2fsprogs";
  97
  98         if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
  99             access(tdb_dir, W_OK))
 100                 return 0;
 101
 102         tmp_name = strdup(device_name);
 103         if (!tmp_name)
 104                 goto errout;
 105         dev_name = basename(tmp_name);
 106         tdb_file = malloc(strlen(tdb_dir) + 9 + strlen(dev_name) + 7 + 1);
 107         if (!tdb_file) {
 108                 free(tmp_name);
 109                 goto errout;
 110         }
 111         sprintf(tdb_file, "%s/debugfs-%s.e2undo", tdb_dir, dev_name);
 112         free(tmp_name);
 113
 114         if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
 115                 retval = errno;
 116                 com_err("debugfs", retval,
 117                         "while trying to delete %s", tdb_file);
 118                 goto errout;
 119         }
 120
 121         retval = set_undo_io_backing_manager(*io_ptr);
 122         if (retval)
 123                 goto errout;
 124         *io_ptr = undo_io_manager;
 125         retval = set_undo_io_backup_file(tdb_file);
 126         if (retval)
 127                 goto errout;
 128         printf("Overwriting existing filesystem; this can be undone "
 129                 "using the command:\n"
 130                 "    e2undo %s %s\n\n", tdb_file, device_name);
 131
 132         free(tdb_file);
 133         return 0;
 134 errout:
 135         free(tdb_file);
 136 err:
 137         com_err("debugfs", retval, "while trying to setup undo file\n");
 138         return retval;
 139 }
 140
 141 static void open_filesystem(char *device, int open_flags, blk64_t superblock,
 142                             blk64_t blocksize, int catastrophic,
 143                             char *data_filename, char *undo_file)
 144 {
 145         int     retval;
 146         io_channel data_io = 0;
 147         io_manager io_ptr = unix_io_manager;
 148
 149         if (superblock != 0 && blocksize == 0) {
 150                 com_err(device, 0, "if you specify the superblock, you must also specify the block size");
 151                 current_fs = NULL;
 152                 return;
 153         }
 154
 155         if (data_filename) {
 156                 if ((open_flags & EXT2_FLAG_IMAGE_FILE) == 0) {
 157                         com_err(device, 0,
 158                                 "The -d option is only valid when reading an e2image file");
 159                         current_fs = NULL;
 160                         return;
 161                 }
 162                 retval = unix_io_manager->open(data_filename, 0, &data_io);
 163                 if (retval) {
 164                         com_err(data_filename, 0, "while opening data source");
 165                         current_fs = NULL;
 166                         return;
 167                 }
 168         }
 169
 170         if (catastrophic)
 171                 open_flags |= EXT2_FLAG_SKIP_MMP | EXT2_FLAG_IGNORE_SB_ERRORS;
 172
 173         if (undo_file) {
 174                 retval = debugfs_setup_tdb(device, undo_file, &io_ptr);
 175                 if (retval)
 176                         exit(1);
 177         }
 178
 179 try_open_again:
 180         retval = ext2fs_open(device, open_flags, superblock, blocksize,
 181                              io_ptr, &current_fs);
 182         if (retval && (retval == EXT2_ET_SB_CSUM_INVALID) &&
 183             !(open_flags & EXT2_FLAG_IGNORE_CSUM_ERRORS)) {
 184                 open_flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
 185                 printf("Checksum errors in superblock!  Retrying...\n");
 186                 goto try_open_again;
 187         }
 188         if (retval) {
 189                 com_err(debug_prog_name, retval,
 190                         "while trying to open %s", device);
 191                 if (retval == EXT2_ET_BAD_MAGIC)
 192                         check_plausibility(device, CHECK_FS_EXIST, NULL);
 193                 current_fs = NULL;
 194                 return;
 195         }
 196         current_fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
 197
 198         if (!catastrophic) {
 199                 retval = ext2fs_read_bitmaps(current_fs);
 200                 if (retval) {
 201                         com_err(device, retval,
 202                                 "while reading allocation bitmaps");
 203                         goto errout;
 204                 }
 205         }
 206
 207         if (data_io) {
 208                 retval = ext2fs_set_data_io(current_fs, data_io);
 209                 if (retval) {
 210                         com_err(device, retval,
 211                                 "while setting data source");
 212                         goto errout;
 213                 }
 214         }
 215
 216         root = cwd = EXT2_ROOT_INO;
 217         return;
 218
 219 errout:
 220         retval = ext2fs_close_free(&current_fs);
 221         if (retval)
 222                 com_err(device, retval, "while trying to close filesystem");
 223 }
 224
 225 void do_open_filesys(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
 226                      void *infop EXT2FS_ATTR((unused)))
 227 {
 228         int     c, err;
 229         int     catastrophic = 0;
 230         blk64_t superblock = 0;
 231         blk64_t blocksize = 0;
 232         int     open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS |
 233                 EXT2_FLAG_THREADS;
 234         char    *data_filename = 0;
 235         char    *undo_file = NULL;
 236
 237         reset_getopt();
 238         while ((c = getopt(argc, argv, "b:cd:Defims:wz:")) != EOF) {
 239                 switch (c) {
 240                 case 'i':
 241                         open_flags |= EXT2_FLAG_IMAGE_FILE;
 242                         break;
 243                 case 'w':
 244 #ifdef READ_ONLY
 245                         goto print_usage;
 246 #else
 247                         open_flags |= EXT2_FLAG_RW;
 248 #endif /* READ_ONLY */
 249                         break;
 250                 case 'f':
 251                         open_flags |= EXT2_FLAG_FORCE;
 252                         break;
 253                 case 'e':
 254                         open_flags |= EXT2_FLAG_EXCLUSIVE;
 255                         break;
 256                 case 'c':
 257                         catastrophic = 1;
 258                         break;
 259                 case 'd':
 260                         data_filename = optarg;
 261                         break;
 262                 case 'D':
 263                         open_flags |= EXT2_FLAG_DIRECT_IO;
 264                         break;
 265                 case 'b':
 266                         blocksize = parse_ulong(optarg, argv[0],
 267                                                 "block size", &err);
 268                         if (err)
 269                                 return;
 270                         break;
 271                 case 'm':
 272                         open_flags |= EXT2_FLAG_SKIP_MMP;
 273                         break;
 274                 case 's':
 275                         err = strtoblk(argv[0], optarg,
 276                                        "superblock block number", &superblock);
 277                         if (err)
 278                                 return;
 279                         break;
 280                 case 'z':
 281 #ifdef READ_ONLY
 282                         goto print_usage;
 283 #else
 284                         undo_file = optarg;
 285 #endif
 286                         break;
 287                 default:
 288                         goto print_usage;
 289                 }
 290         }
 291         if (optind != argc-1) {
 292                 goto print_usage;
 293         }
 294         if (check_fs_not_open(argv[0]))
 295                 return;
 296         open_filesystem(argv[optind], open_flags,
 297                         superblock, blocksize, catastrophic,
 298                         data_filename, undo_file);
 299         return;
 300
 301 print_usage:
 302         fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] "
 303 #ifdef READ_ONLY
 304                 "[-d image_filename] [-z undo_file] [-cDefim] "
 305 #else
 306                 "[-d image_filename] [-cDefimw] "
 307 #endif
 308                 "<device>\n", argv[0]);
 309 }
 310
 311 void do_lcd(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
 312             void *infop EXT2FS_ATTR((unused)))
 313 {
 314         if (argc != 2) {
 315                 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>");
 316                 return;
 317         }
 318
 319         if (chdir(argv[1]) == -1) {
 320                 com_err(argv[0], errno,
 321                         "while trying to change native directory to %s",
 322                         argv[1]);
 323                 return;
 324         }
 325 }
 326
 327 static void close_filesystem(NOARGS)
 328 {
 329         int     retval;
 330
 331         if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
 332                 retval = ext2fs_write_inode_bitmap(current_fs);
 333                 if (retval)
 334                         com_err("ext2fs_write_inode_bitmap", retval, 0);
 335         }
 336         if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
 337                 retval = ext2fs_write_block_bitmap(current_fs);
 338                 if (retval)
 339                         com_err("ext2fs_write_block_bitmap", retval, 0);
 340         }
 341         if (current_qctx)
 342                 quota_release_context(&current_qctx);
 343         retval = ext2fs_close_free(&current_fs);
 344         if (retval)
 345                 com_err("ext2fs_close", retval, 0);
 346         return;
 347 }
 348
 349 void do_close_filesys(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
 350                       void *infop EXT2FS_ATTR((unused)))
 351 {
 352         int     c;
 353
 354         if (check_fs_open(argv[0]))
 355                 return;
 356
 357         reset_getopt();
 358         while ((c = getopt (argc, argv, "a")) != EOF) {
 359                 switch (c) {
 360                 case 'a':
 361                         current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
 362                         break;
 363                 default:
 364                         goto print_usage;
 365                 }
 366         }
 367
 368         if (argc > optind) {
 369         print_usage:
 370                 com_err(0, 0, "Usage: close_filesys [-a]");
 371                 return;
 372         }
 373
 374         close_filesystem();
 375 }
 376
 377 #ifndef READ_ONLY
 378 void do_init_filesys(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
 379                      void *infop EXT2FS_ATTR((unused)))
 380 {
 381         struct ext2_super_block param;
 382         errcode_t       retval;
 383         int             err;
 384         blk64_t         blocks;
 385
 386         if (common_args_process(argc, argv, 3, 3, "initialize",
 387                                 "<device> <blocks>", CHECK_FS_NOTOPEN))
 388                 return;
 389
 390         memset(&param, 0, sizeof(struct ext2_super_block));
 391         err = strtoblk(argv[0], argv[2], "blocks count", &blocks);
 392         if (err)
 393                 return;
 394         ext2fs_blocks_count_set(&param, blocks);
 395         retval = ext2fs_initialize(argv[1], 0, &param,
 396                                    unix_io_manager, &current_fs);
 397         if (retval) {
 398                 com_err(argv[1], retval, "while initializing filesystem");
 399                 current_fs = NULL;
 400                 return;
 401         }
 402         root = cwd = EXT2_ROOT_INO;
 403         return;
 404 }
 405
 406 static void print_features(struct ext2_super_block * s, FILE *f)
 407 {
 408         int     i, j, printed=0;
 409         __u32   *mask = &s->s_feature_compat, m;
 410
 411         fputs("Filesystem features:", f);
 412         for (i=0; i <3; i++,mask++) {
 413                 for (j=0,m=1; j < 32; j++, m<<=1) {
 414                         if (*mask & m) {
 415                                 fprintf(f, " %s", e2p_feature2string(i, m));
 416                                 printed++;
 417                         }
 418                 }
 419         }
 420         if (printed == 0)
 421                 fputs("(none)", f);
 422         fputs("\n", f);
 423 }
 424 #endif /* READ_ONLY */
 425
 426 static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask,
 427                           const char *str, int *first, FILE *f)
 428 {
 429         if (ext2fs_bg_flags_test(fs, group, mask)) {
 430                 if (*first) {
 431                         fputs("           [", f);
 432                         *first = 0;
 433                 } else
 434                         fputs(", ", f);
 435                 fputs(str, f);
 436         }
 437 }
 438
 439 void do_show_super_stats(int argc, char *argv[],
 440                          int sci_idx EXT2FS_ATTR((unused)),
 441                          void *infop EXT2FS_ATTR((unused)))
 442 {
 443         const char *units ="block";
 444         dgrp_t  i;
 445         FILE    *out;
 446         int     c, header_only = 0;
 447         int     numdirs = 0, first, gdt_csum;
 448
 449         reset_getopt();
 450         while ((c = getopt (argc, argv, "h")) != EOF) {
 451                 switch (c) {
 452                 case 'h':
 453                         header_only++;
 454                         break;
 455                 default:
 456                         goto print_usage;
 457                 }
 458         }
 459         if (optind != argc) {
 460                 goto print_usage;
 461         }
 462         if (check_fs_open(argv[0]))
 463                 return;
 464         out = open_pager();
 465
 466         if (ext2fs_has_feature_bigalloc(current_fs->super))
 467                 units = "cluster";
 468
 469         list_super2(current_fs->super, out);
 470         if (ext2fs_has_feature_metadata_csum(current_fs->super) &&
 471             !ext2fs_superblock_csum_verify(current_fs,
 472                                            current_fs->super)) {
 473                 __u32 orig_csum = current_fs->super->s_checksum;
 474
 475                 ext2fs_superblock_csum_set(current_fs,
 476                                            current_fs->super);
 477                 fprintf(out, "Expected Checksum:        0x%08x\n",
 478                         current_fs->super->s_checksum);
 479                 current_fs->super->s_checksum = orig_csum;
 480         }
 481         for (i=0; i < current_fs->group_desc_count; i++)
 482                 numdirs += ext2fs_bg_used_dirs_count(current_fs, i);
 483         fprintf(out, "Directories:              %u\n", numdirs);
 484
 485         if (header_only) {
 486                 close_pager(out);
 487                 return;
 488         }
 489
 490         gdt_csum = ext2fs_has_group_desc_csum(current_fs);
 491         for (i = 0; i < current_fs->group_desc_count; i++) {
 492                 fprintf(out, " Group %2d: block bitmap at %llu, "
 493                         "inode bitmap at %llu, "
 494                         "inode table at %llu\n"
 495                         "           %u free %s%s, "
 496                         "%u free %s, "
 497                         "%u used %s%s", i,
 498                         (unsigned long long) ext2fs_block_bitmap_loc(current_fs, i),
 499                         (unsigned long long) ext2fs_inode_bitmap_loc(current_fs, i),
 500                         (unsigned long long) ext2fs_inode_table_loc(current_fs, i),
 501                         ext2fs_bg_free_blocks_count(current_fs, i),
 502                         units,
 503                         ext2fs_bg_free_blocks_count(current_fs, i) != 1 ?
 504                         "s" : "",
 505                         ext2fs_bg_free_inodes_count(current_fs, i),
 506                         ext2fs_bg_free_inodes_count(current_fs, i) != 1 ?
 507                         "inodes" : "inode",
 508                         ext2fs_bg_used_dirs_count(current_fs, i),
 509                         ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories"
 510                                 : "directory", gdt_csum ? ", " : "\n");
 511                 if (gdt_csum)
 512                         fprintf(out, "%u unused %s\n",
 513                                 ext2fs_bg_itable_unused(current_fs, i),
 514                                 ext2fs_bg_itable_unused(current_fs, i) != 1 ?
 515                                 "inodes" : "inode");
 516                 first = 1;
 517                 print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init",
 518                               &first, out);
 519                 print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init",
 520                               &first, out);
 521                 print_bg_opts(current_fs, i, EXT2_BG_IOPS, "IOPS",
 522                               &first, out);
 523                 if (gdt_csum) {
 524                         fprintf(out, "%sChecksum 0x%04x",
 525                                 first ? "           [":", ", ext2fs_bg_checksum(current_fs, i));
 526                         first = 0;
 527                 }
 528                 if (!first)
 529                         fputs("]\n", out);
 530         }
 531         close_pager(out);
 532         return;
 533 print_usage:
 534         fprintf(stderr, "%s: Usage: show_super_stats [-h]\n", argv[0]);
 535 }
 536
 537 #ifndef READ_ONLY
 538 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
 539                       char **argv EXT2FS_ATTR((unused)),
 540                       int sci_idx EXT2FS_ATTR((unused)),
 541                       void *infop EXT2FS_ATTR((unused)))
 542 {
 543         if (check_fs_open(argv[0]))
 544                 return;
 545         if (check_fs_read_write(argv[0]))
 546                 return;
 547
 548         if (argv[1] && !strcmp(argv[1], "-clean"))
 549                 current_fs->super->s_state |= EXT2_VALID_FS;
 550         else
 551                 current_fs->super->s_state &= ~EXT2_VALID_FS;
 552         ext2fs_mark_super_dirty(current_fs);
 553 }
 554 #endif /* READ_ONLY */
 555
 556 struct list_blocks_struct {
 557         FILE            *f;
 558         e2_blkcnt_t     total;
 559         blk64_t         first_block, last_block;
 560         e2_blkcnt_t     first_bcnt, last_bcnt;
 561         e2_blkcnt_t     first;
 562 };
 563
 564 static void finish_range(struct list_blocks_struct *lb)
 565 {
 566         if (lb->first_block == 0)
 567                 return;
 568         if (lb->first)
 569                 lb->first = 0;
 570         else
 571                 fprintf(lb->f, ", ");
 572         if (lb->first_block == lb->last_block)
 573                 fprintf(lb->f, "(%lld):%llu",
 574                         (long long)lb->first_bcnt,
 575                         (unsigned long long) lb->first_block);
 576         else
 577                 fprintf(lb->f, "(%lld-%lld):%llu-%llu",
 578                         (long long)lb->first_bcnt, (long long)lb->last_bcnt,
 579                         (unsigned long long) lb->first_block,
 580                         (unsigned long long) lb->last_block);
 581         lb->first_block = 0;
 582 }
 583
 584 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
 585                             blk64_t *blocknr, e2_blkcnt_t blockcnt,
 586                             blk64_t ref_block EXT2FS_ATTR((unused)),
 587                             int ref_offset EXT2FS_ATTR((unused)),
 588                             void *private)
 589 {
 590         struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
 591
 592         lb->total++;
 593         if (blockcnt >= 0) {
 594                 /*
 595                  * See if we can add on to the existing range (if it exists)
 596                  */
 597                 if (lb->first_block &&
 598                     (lb->last_block+1 == *blocknr) &&
 599                     (lb->last_bcnt+1 == blockcnt)) {
 600                         lb->last_block = *blocknr;
 601                         lb->last_bcnt = blockcnt;
 602                         return 0;
 603                 }
 604                 /*
 605                  * Start a new range.
 606                  */
 607                 finish_range(lb);
 608                 lb->first_block = lb->last_block = *blocknr;
 609                 lb->first_bcnt = lb->last_bcnt = blockcnt;
 610                 return 0;
 611         }
 612         /*
 613          * Not a normal block.  Always force a new range.
 614          */
 615         finish_range(lb);
 616         if (lb->first)
 617                 lb->first = 0;
 618         else
 619                 fprintf(lb->f, ", ");
 620         if (blockcnt == -1)
 621                 fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr);
 622         else if (blockcnt == -2)
 623                 fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr);
 624         else if (blockcnt == -3)
 625                 fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr);
 626         return 0;
 627 }
 628
 629 static void internal_dump_inode_extra(FILE *out,
 630                                       const char *prefix EXT2FS_ATTR((unused)),
 631                                       ext2_ino_t inode_num EXT2FS_ATTR((unused)),
 632                                       struct ext2_inode_large *inode)
 633 {
 634         fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
 635         if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
 636                         EXT2_GOOD_OLD_INODE_SIZE) {
 637                 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
 638                                 inode->i_extra_isize);
 639                 return;
 640         }
 641 }
 642
 643 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
 644 {
 645         struct list_blocks_struct lb;
 646
 647         fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
 648         lb.total = 0;
 649         lb.first_block = 0;
 650         lb.f = f;
 651         lb.first = 1;
 652         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
 653                               list_blocks_proc, (void *)&lb);
 654         finish_range(&lb);
 655         if (lb.total)
 656                 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
 657         fprintf(f,"\n");
 658 }
 659
 660 #define DUMP_LEAF_EXTENTS       0x01
 661 #define DUMP_NODE_EXTENTS       0x02
 662 #define DUMP_EXTENT_TABLE       0x04
 663
 664 static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino,
 665                          int flags, int logical_width, int physical_width)
 666 {
 667         ext2_extent_handle_t    handle;
 668         struct ext2fs_extent    extent;
 669         struct ext2_extent_info info;
 670         int                     op = EXT2_EXTENT_ROOT;
 671         unsigned int            printed = 0;
 672         errcode_t               errcode;
 673
 674         errcode = ext2fs_extent_open(current_fs, ino, &handle);
 675         if (errcode)
 676                 return;
 677
 678         if (flags & DUMP_EXTENT_TABLE)
 679                 fprintf(f, "Level Entries %*s %*s Length Flags\n",
 680                         (logical_width*2)+3, "Logical",
 681                         (physical_width*2)+3, "Physical");
 682         else
 683                 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix);
 684
 685         while (1) {
 686                 errcode = ext2fs_extent_get(handle, op, &extent);
 687
 688                 if (errcode)
 689                         break;
 690
 691                 op = EXT2_EXTENT_NEXT;
 692
 693                 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 694                         continue;
 695
 696                 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
 697                         if ((flags & DUMP_LEAF_EXTENTS) == 0)
 698                                 continue;
 699                 } else {
 700                         if ((flags & DUMP_NODE_EXTENTS) == 0)
 701                                 continue;
 702                 }
 703
 704                 errcode = ext2fs_extent_get_info(handle, &info);
 705                 if (errcode)
 706                         continue;
 707
 708                 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) {
 709                         if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 710                                 continue;
 711
 712                         if (flags & DUMP_EXTENT_TABLE) {
 713                                 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 714                                         "%*llu%*s %6u\n",
 715                                         info.curr_level, info.max_depth,
 716                                         info.curr_entry, info.num_entries,
 717                                         logical_width,
 718                                         (unsigned long long) extent.e_lblk,
 719                                         logical_width,
 720                                         (unsigned long long) extent.e_lblk + (extent.e_len - 1),
 721                                         physical_width,
 722                                         (unsigned long long) extent.e_pblk,
 723                                         physical_width+3, "", extent.e_len);
 724                                 continue;
 725                         }
 726
 727                         fprintf(f, "%s(ETB%d):%llu",
 728                                 printed ? ", " : "", info.curr_level,
 729                                 (unsigned long long) extent.e_pblk);
 730                         printed = 1;
 731                         continue;
 732                 }
 733
 734                 if (flags & DUMP_EXTENT_TABLE) {
 735                         fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 736                                 "%*llu - %*llu %6u %s\n",
 737                                 info.curr_level, info.max_depth,
 738                                 info.curr_entry, info.num_entries,
 739                                 logical_width,
 740                                 (unsigned long long) extent.e_lblk,
 741                                 logical_width,
 742                                 (unsigned long long) extent.e_lblk + (extent.e_len - 1),
 743                                 physical_width,
 744                                 (unsigned long long) extent.e_pblk,
 745                                 physical_width,
 746                                 (unsigned long long) extent.e_pblk + (extent.e_len - 1),
 747                                 extent.e_len,
 748                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 749                                         "Uninit" : "");
 750                         continue;
 751                 }
 752
 753                 if (extent.e_len == 0)
 754                         continue;
 755                 else if (extent.e_len == 1)
 756                         fprintf(f,
 757                                 "%s(%lld%s):%lld",
 758                                 printed ? ", " : "",
 759                                 (unsigned long long) extent.e_lblk,
 760                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 761                                 "[u]" : "",
 762                                 (unsigned long long) extent.e_pblk);
 763                 else
 764                         fprintf(f,
 765                                 "%s(%lld-%lld%s):%lld-%lld",
 766                                 printed ? ", " : "",
 767                                 (unsigned long long) extent.e_lblk,
 768                                 (unsigned long long) extent.e_lblk + (extent.e_len - 1),
 769                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 770                                         "[u]" : "",
 771                                 (unsigned long long) extent.e_pblk,
 772                                 (unsigned long long) extent.e_pblk + (extent.e_len - 1));
 773                 printed = 1;
 774         }
 775         if (printed)
 776                 fprintf(f, "\n");
 777         ext2fs_extent_free(handle);
 778 }
 779
 780 static void dump_inline_data(FILE *out, const char *prefix, ext2_ino_t inode_num)
 781 {
 782         errcode_t retval;
 783         size_t size;
 784
 785         retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
 786         if (!retval)
 787                 fprintf(out, "%sSize of inline data: %zu\n", prefix, size);
 788 }
 789
 790 static void dump_inline_symlink(FILE *out, ext2_ino_t inode_num,
 791                                 struct ext2_inode *inode, const char *prefix)
 792 {
 793         errcode_t retval;
 794         char *buf = NULL;
 795         size_t size;
 796
 797         retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
 798         if (retval)
 799                 goto out;
 800
 801         retval = ext2fs_get_memzero(size + 1, &buf);
 802         if (retval)
 803                 goto out;
 804
 805         retval = ext2fs_inline_data_get(current_fs, inode_num,
 806                                         inode, buf, &size);
 807         if (retval)
 808                 goto out;
 809
 810         fprintf(out, "%sFast link dest: \"%.*s\"\n", prefix,
 811                 (int)size, buf);
 812 out:
 813         if (buf)
 814                 ext2fs_free_mem(&buf);
 815         if (retval)
 816                 com_err(__func__, retval, "while dumping link destination");
 817 }
 818
 819 void internal_dump_inode(FILE *out, const char *prefix,
 820                          ext2_ino_t inode_num, struct ext2_inode *inode,
 821                          int do_dump_blocks)
 822 {
 823         const char *i_type;
 824         char frag, fsize;
 825         int os = current_fs->super->s_creator_os;
 826         struct ext2_inode_large *large_inode;
 827         int is_large_inode = 0;
 828
 829         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 830                 is_large_inode = 1;
 831         large_inode = (struct ext2_inode_large *) inode;
 832
 833         if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
 834         else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
 835         else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
 836         else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
 837         else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
 838         else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
 839         else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
 840         else i_type = "bad type";
 841         fprintf(out, "%sInode: %u   Type: %s    ", prefix, inode_num, i_type);
 842         fprintf(out, "%sMode:  0%03o   Flags: 0x%x\n",
 843                 prefix, inode->i_mode & 07777, inode->i_flags);
 844         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 845                 fprintf(out, "%sGeneration: %u    Version: 0x%08x:%08x\n",
 846                         prefix, inode->i_generation, large_inode->i_version_hi,
 847                         inode->osd1.linux1.l_i_version);
 848         } else {
 849                 fprintf(out, "%sGeneration: %u    Version: 0x%08x\n", prefix,
 850                         inode->i_generation, inode->osd1.linux1.l_i_version);
 851         }
 852         fprintf(out, "%sUser: %5d   Group: %5d",
 853                 prefix, inode_uid(*inode), inode_gid(*inode));
 854         if (is_large_inode && large_inode->i_extra_isize >= 32)
 855                 fprintf(out, "   Project: %5d", large_inode->i_projid);
 856         fputs("   Size: ", out);
 857         if (LINUX_S_ISREG(inode->i_mode) || LINUX_S_ISDIR(inode->i_mode))
 858                 fprintf(out, "%llu\n", (unsigned long long) EXT2_I_SIZE(inode));
 859         else
 860                 fprintf(out, "%u\n", inode->i_size);
 861         if (os == EXT2_OS_HURD)
 862                 fprintf(out,
 863                         "%sFile ACL: %u Translator: %u\n",
 864                         prefix,
 865                         inode->i_file_acl,
 866                         inode->osd1.hurd1.h_i_translator);
 867         else
 868                 fprintf(out, "%sFile ACL: %llu\n",
 869                         prefix,
 870                         inode->i_file_acl | ((long long)
 871                                 (inode->osd2.linux2.l_i_file_acl_high) << 32));
 872         if (os != EXT2_OS_HURD)
 873                 fprintf(out, "%sLinks: %u   Blockcount: %llu\n",
 874                         prefix, inode->i_links_count,
 875                         (((unsigned long long)
 876                           inode->osd2.linux2.l_i_blocks_hi << 32)) +
 877                         inode->i_blocks);
 878         else
 879                 fprintf(out, "%sLinks: %u   Blockcount: %u\n",
 880                         prefix, inode->i_links_count, inode->i_blocks);
 881         switch (os) {
 882             case EXT2_OS_HURD:
 883                 frag = inode->osd2.hurd2.h_i_frag;
 884                 fsize = inode->osd2.hurd2.h_i_fsize;
 885                 break;
 886             default:
 887                 frag = fsize = 0;
 888         }
 889         fprintf(out, "%sFragment:  Address: %u    Number: %u    Size: %u\n",
 890                 prefix, inode->i_faddr, frag, fsize);
 891         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 892                 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
 893                         inode->i_ctime, large_inode->i_ctime_extra,
 894                         inode_time_to_string(inode->i_ctime,
 895                                              large_inode->i_ctime_extra));
 896                 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
 897                         inode->i_atime, large_inode->i_atime_extra,
 898                         inode_time_to_string(inode->i_atime,
 899                                              large_inode->i_atime_extra));
 900                 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
 901                         inode->i_mtime, large_inode->i_mtime_extra,
 902                         inode_time_to_string(inode->i_mtime,
 903                                              large_inode->i_mtime_extra));
 904                 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
 905                         large_inode->i_crtime, large_inode->i_crtime_extra,
 906                         inode_time_to_string(large_inode->i_crtime,
 907                                              large_inode->i_crtime_extra));
 908                 if (inode->i_dtime)
 909                         fprintf(out, "%s dtime: 0x%08x:(%08x) -- %s", prefix,
 910                                 large_inode->i_dtime, large_inode->i_ctime_extra,
 911                                 inode_time_to_string(inode->i_dtime,
 912                                                      large_inode->i_ctime_extra));
 913         } else {
 914                 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
 915                         time_to_string((__s32) inode->i_ctime));
 916                 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
 917                         time_to_string((__s32) inode->i_atime));
 918                 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
 919                         time_to_string((__s32) inode->i_mtime));
 920                 if (inode->i_dtime)
 921                         fprintf(out, "%sdtime: 0x%08x -- %s", prefix,
 922                                 inode->i_dtime,
 923                                 time_to_string((__s32) inode->i_dtime));
 924         }
 925         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 926                 internal_dump_inode_extra(out, prefix, inode_num,
 927                                           (struct ext2_inode_large *) inode);
 928         dump_inode_attributes(out, inode_num);
 929         if (ext2fs_has_feature_metadata_csum(current_fs->super)) {
 930                 __u32 crc = inode->i_checksum_lo;
 931                 if (is_large_inode &&
 932                     large_inode->i_extra_isize >=
 933                                 (offsetof(struct ext2_inode_large,
 934                                           i_checksum_hi) -
 935                                  EXT2_GOOD_OLD_INODE_SIZE))
 936                         crc |= ((__u32)large_inode->i_checksum_hi) << 16;
 937                 fprintf(out, "Inode checksum: 0x%08x\n", crc);
 938         }
 939
 940         if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_is_fast_symlink(inode))
 941                 fprintf(out, "%sFast link dest: \"%.*s\"\n", prefix,
 942                         (int)EXT2_I_SIZE(inode), (char *)inode->i_block);
 943         else if (LINUX_S_ISLNK(inode->i_mode) &&
 944                    (inode->i_flags & EXT4_INLINE_DATA_FL))
 945                 dump_inline_symlink(out, inode_num, inode, prefix);
 946         else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
 947                 int major, minor;
 948                 const char *devnote;
 949
 950                 if (inode->i_block[0]) {
 951                         major = (inode->i_block[0] >> 8) & 255;
 952                         minor = inode->i_block[0] & 255;
 953                         devnote = "";
 954                 } else {
 955                         major = (inode->i_block[1] & 0xfff00) >> 8;
 956                         minor = ((inode->i_block[1] & 0xff) |
 957                                  ((inode->i_block[1] >> 12) & 0xfff00));
 958                         devnote = "(New-style) ";
 959                 }
 960                 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
 961                         devnote, major, minor, major, minor);
 962         } else if (do_dump_blocks) {
 963                 if (inode->i_flags & EXT4_EXTENTS_FL)
 964                         dump_extents(out, prefix, inode_num,
 965                                      DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0);
 966                 else if (inode->i_flags & EXT4_INLINE_DATA_FL)
 967                         dump_inline_data(out, prefix, inode_num);
 968                 else
 969                         dump_blocks(out, prefix, inode_num);
 970         }
 971 }
 972
 973 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
 974 {
 975         FILE    *out;
 976
 977         out = open_pager();
 978         internal_dump_inode(out, "", inode_num, inode, 1);
 979         close_pager(out);
 980 }
 981
 982 void do_stat(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
 983              void *infop EXT2FS_ATTR((unused)))
 984 {
 985         ext2_ino_t      inode;
 986         struct ext2_inode * inode_buf;
 987
 988         if (check_fs_open(argv[0]))
 989                 return;
 990
 991         inode_buf = (struct ext2_inode *)
 992                         malloc(EXT2_INODE_SIZE(current_fs->super));
 993         if (!inode_buf) {
 994                 fprintf(stderr, "do_stat: can't allocate buffer\n");
 995                 return;
 996         }
 997
 998         if (common_inode_args_process(argc, argv, &inode, 0)) {
 999                 free(inode_buf);
1000                 return;
1001         }
1002
1003         if (debugfs_read_inode2(inode, inode_buf, argv[0],
1004                                 EXT2_INODE_SIZE(current_fs->super), 0)) {
1005                 free(inode_buf);
1006                 return;
1007         }
1008
1009         dump_inode(inode, inode_buf);
1010         free(inode_buf);
1011         return;
1012 }
1013
1014 void do_dump_extents(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
1015                      void *infop EXT2FS_ATTR((unused)))
1016 {
1017         struct ext2_inode inode;
1018         ext2_ino_t      ino;
1019         FILE            *out;
1020         int             c, flags = 0;
1021         int             logical_width;
1022         int             physical_width;
1023
1024         reset_getopt();
1025         while ((c = getopt(argc, argv, "nl")) != EOF) {
1026                 switch (c) {
1027                 case 'n':
1028                         flags |= DUMP_NODE_EXTENTS;
1029                         break;
1030                 case 'l':
1031                         flags |= DUMP_LEAF_EXTENTS;
1032                         break;
1033                 }
1034         }
1035
1036         if (argc != optind + 1) {
1037                 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
1038                 return;
1039         }
1040
1041         if (flags == 0)
1042                 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
1043         flags |= DUMP_EXTENT_TABLE;
1044
1045         if (check_fs_open(argv[0]))
1046                 return;
1047
1048         ino = string_to_inode(argv[optind]);
1049         if (ino == 0)
1050                 return;
1051
1052         if (debugfs_read_inode(ino, &inode, argv[0]))
1053                 return;
1054
1055         if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
1056                 fprintf(stderr, "%s: does not uses extent block maps\n",
1057                         argv[optind]);
1058                 return;
1059         }
1060
1061         logical_width = ext2fs_log10((EXT2_I_SIZE(&inode)+current_fs->blocksize-1)/
1062                                   current_fs->blocksize) + 1;
1063         if (logical_width < 5)
1064                 logical_width = 5;
1065         physical_width = ext2fs_log10(ext2fs_blocks_count(current_fs->super)) + 1;
1066         if (physical_width < 5)
1067                 physical_width = 5;
1068
1069         out = open_pager();
1070         dump_extents(out, "", ino, flags, logical_width, physical_width);
1071         close_pager(out);
1072         return;
1073 }
1074
1075 static int print_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
1076                              blk64_t *blocknr,
1077                              e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1078                              blk64_t ref_block EXT2FS_ATTR((unused)),
1079                              int ref_offset EXT2FS_ATTR((unused)),
1080                              void *private EXT2FS_ATTR((unused)))
1081 {
1082         printf("%llu ", (unsigned long long) *blocknr);
1083         return 0;
1084 }
1085
1086 void do_blocks(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1087                void *infop EXT2FS_ATTR((unused)))
1088 {
1089         ext2_ino_t      inode;
1090
1091         if (check_fs_open(argv[0]))
1092                 return;
1093
1094         if (common_inode_args_process(argc, argv, &inode, 0)) {
1095                 return;
1096         }
1097
1098         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
1099                               print_blocks_proc, NULL);
1100         fputc('\n', stdout);
1101         return;
1102 }
1103
1104 void do_chroot(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1105                void *infop EXT2FS_ATTR((unused)))
1106 {
1107         ext2_ino_t inode;
1108         int retval;
1109
1110         if (common_inode_args_process(argc, argv, &inode, 0))
1111                 return;
1112
1113         retval = ext2fs_check_directory(current_fs, inode);
1114         if (retval)  {
1115                 com_err(argv[1], retval, 0);
1116                 return;
1117         }
1118         root = inode;
1119 }
1120
1121 #ifndef READ_ONLY
1122 void do_clri(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1123              void *infop EXT2FS_ATTR((unused)))
1124 {
1125         ext2_ino_t inode;
1126         struct ext2_inode inode_buf;
1127
1128         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1129                 return;
1130
1131         if (debugfs_read_inode(inode, &inode_buf, argv[0]))
1132                 return;
1133         memset(&inode_buf, 0, sizeof(inode_buf));
1134         if (debugfs_write_inode(inode, &inode_buf, argv[0]))
1135                 return;
1136 }
1137
1138 void do_freei(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1139               void *infop EXT2FS_ATTR((unused)))
1140 {
1141         unsigned int    len = 1;
1142         int             err = 0;
1143         ext2_ino_t      inode;
1144
1145         if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1146                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1147                 return;
1148         if (check_fs_read_write(argv[0]))
1149                 return;
1150
1151         inode = string_to_inode(argv[1]);
1152         if (!inode)
1153                 return;
1154
1155         if (argc == 3) {
1156                 len = parse_ulong(argv[2], argv[0], "length", &err);
1157                 if (err)
1158                         return;
1159         }
1160
1161         if (len == 1 &&
1162             !ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1163                 com_err(argv[0], 0, "Warning: inode already clear");
1164         while (len-- > 0)
1165                 ext2fs_unmark_inode_bitmap2(current_fs->inode_map, inode++);
1166         ext2fs_mark_ib_dirty(current_fs);
1167 }
1168
1169 void do_seti(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1170              void *infop EXT2FS_ATTR((unused)))
1171 {
1172         unsigned int    len = 1;
1173         int             err = 0;
1174         ext2_ino_t      inode;
1175
1176         if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1177                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1178                 return;
1179         if (check_fs_read_write(argv[0]))
1180                 return;
1181
1182         inode = string_to_inode(argv[1]);
1183         if (!inode)
1184                 return;
1185
1186         if (argc == 3) {
1187                 len = parse_ulong(argv[2], argv[0], "length", &err);
1188                 if (err)
1189                         return;
1190         }
1191
1192         if ((len == 1) &&
1193             ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1194                 com_err(argv[0], 0, "Warning: inode already set");
1195         while (len-- > 0)
1196                 ext2fs_mark_inode_bitmap2(current_fs->inode_map, inode++);
1197         ext2fs_mark_ib_dirty(current_fs);
1198 }
1199 #endif /* READ_ONLY */
1200
1201 void do_testi(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1202               void *infop EXT2FS_ATTR((unused)))
1203 {
1204         ext2_ino_t inode;
1205
1206         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
1207                 return;
1208
1209         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1210                 printf("Inode %u is marked in use\n", inode);
1211         else
1212                 printf("Inode %u is not in use\n", inode);
1213 }
1214
1215 #ifndef READ_ONLY
1216 void do_freeb(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1217               void *infop EXT2FS_ATTR((unused)))
1218 {
1219         blk64_t block;
1220         blk64_t count = 1;
1221
1222         if (common_block_args_process(argc, argv, &block, &count))
1223                 return;
1224         if (check_fs_read_write(argv[0]))
1225                 return;
1226         while (count-- > 0) {
1227                 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
1228                         com_err(argv[0], 0, "Warning: block %llu already clear",
1229                                 (unsigned long long) block);
1230                 ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
1231                 block++;
1232         }
1233         ext2fs_mark_bb_dirty(current_fs);
1234 }
1235
1236 void do_setb(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1237              void *infop EXT2FS_ATTR((unused)))
1238 {
1239         blk64_t block;
1240         blk64_t count = 1;
1241
1242         if (common_block_args_process(argc, argv, &block, &count))
1243                 return;
1244         if (check_fs_read_write(argv[0]))
1245                 return;
1246         while (count-- > 0) {
1247                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1248                         com_err(argv[0], 0, "Warning: block %llu already set",
1249                                 (unsigned long long) block);
1250                 ext2fs_mark_block_bitmap2(current_fs->block_map,block);
1251                 block++;
1252         }
1253         ext2fs_mark_bb_dirty(current_fs);
1254 }
1255 #endif /* READ_ONLY */
1256
1257 void do_testb(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1258               void *infop EXT2FS_ATTR((unused)))
1259 {
1260         blk64_t block;
1261         blk64_t count = 1;
1262
1263         if (common_block_args_process(argc, argv, &block, &count))
1264                 return;
1265         while (count-- > 0) {
1266                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1267                         printf("Block %llu marked in use\n",
1268                                (unsigned long long) block);
1269                 else
1270                         printf("Block %llu not in use\n",
1271                                (unsigned long long) block);
1272                 block++;
1273         }
1274 }
1275
1276 #ifndef READ_ONLY
1277 static void modify_u8(char *com, const char *prompt,
1278                       const char *format, __u8 *val)
1279 {
1280         char buf[200];
1281         unsigned long v;
1282         char *tmp;
1283
1284         sprintf(buf, format, *val);
1285         printf("%30s    [%s] ", prompt, buf);
1286         if (!fgets(buf, sizeof(buf), stdin))
1287                 return;
1288         if (buf[strlen (buf) - 1] == '\n')
1289                 buf[strlen (buf) - 1] = '\0';
1290         if (!buf[0])
1291                 return;
1292         v = strtoul(buf, &tmp, 0);
1293         if (*tmp)
1294                 com_err(com, 0, "Bad value - %s", buf);
1295         else
1296                 *val = v;
1297 }
1298
1299 static void modify_u16(char *com, const char *prompt,
1300                        const char *format, __u16 *val)
1301 {
1302         char buf[200];
1303         unsigned long v;
1304         char *tmp;
1305
1306         sprintf(buf, format, *val);
1307         printf("%30s    [%s] ", prompt, buf);
1308         if (!fgets(buf, sizeof(buf), stdin))
1309                 return;
1310         if (buf[strlen (buf) - 1] == '\n')
1311                 buf[strlen (buf) - 1] = '\0';
1312         if (!buf[0])
1313                 return;
1314         v = strtoul(buf, &tmp, 0);
1315         if (*tmp)
1316                 com_err(com, 0, "Bad value - %s", buf);
1317         else
1318                 *val = v;
1319 }
1320
1321 static void modify_u32(char *com, const char *prompt,
1322                        const char *format, __u32 *val)
1323 {
1324         char buf[200];
1325         unsigned long v;
1326         char *tmp;
1327
1328         sprintf(buf, format, *val);
1329         printf("%30s    [%s] ", prompt, buf);
1330         if (!fgets(buf, sizeof(buf), stdin))
1331                 return;
1332         if (buf[strlen (buf) - 1] == '\n')
1333                 buf[strlen (buf) - 1] = '\0';
1334         if (!buf[0])
1335                 return;
1336         v = strtoul(buf, &tmp, 0);
1337         if (*tmp)
1338                 com_err(com, 0, "Bad value - %s", buf);
1339         else
1340                 *val = v;
1341 }
1342
1343
1344 void do_modify_inode(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1345                      void *infop EXT2FS_ATTR((unused)))
1346 {
1347         struct ext2_inode inode;
1348         ext2_ino_t      inode_num;
1349         int             i;
1350         unsigned char   *frag, *fsize;
1351         char            buf[80];
1352         int             os;
1353         const char      *hex_format = "0x%x";
1354         const char      *octal_format = "0%o";
1355         const char      *decimal_format = "%d";
1356         const char      *unsignedlong_format = "%lu";
1357
1358         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1359                 return;
1360
1361         os = current_fs->super->s_creator_os;
1362
1363         if (debugfs_read_inode(inode_num, &inode, argv[1]))
1364                 return;
1365
1366         modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1367         modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1368         modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1369         modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1370         modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1371         modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1372         modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1373         modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1374         modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1375         if (os == EXT2_OS_LINUX)
1376                 modify_u16(argv[0], "Block count high", unsignedlong_format,
1377                            &inode.osd2.linux2.l_i_blocks_hi);
1378         modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1379         modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1380         modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1381 #if 0
1382         modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1383 #endif
1384         modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1385
1386         modify_u32(argv[0], "High 32bits of size", decimal_format,
1387                    &inode.i_size_high);
1388
1389         if (os == EXT2_OS_HURD)
1390                 modify_u32(argv[0], "Translator Block",
1391                             decimal_format, &inode.osd1.hurd1.h_i_translator);
1392
1393         modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1394         switch (os) {
1395             case EXT2_OS_HURD:
1396                 frag = &inode.osd2.hurd2.h_i_frag;
1397                 fsize = &inode.osd2.hurd2.h_i_fsize;
1398                 break;
1399             default:
1400                 frag = fsize = 0;
1401         }
1402         if (frag)
1403                 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1404         if (fsize)
1405                 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1406
1407         for (i=0;  i < EXT2_NDIR_BLOCKS; i++) {
1408                 sprintf(buf, "Direct Block #%u", i);
1409                 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1410         }
1411         modify_u32(argv[0], "Indirect Block", decimal_format,
1412                     &inode.i_block[EXT2_IND_BLOCK]);
1413         modify_u32(argv[0], "Double Indirect Block", decimal_format,
1414                     &inode.i_block[EXT2_DIND_BLOCK]);
1415         modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1416                     &inode.i_block[EXT2_TIND_BLOCK]);
1417         if (debugfs_write_inode(inode_num, &inode, argv[1]))
1418                 return;
1419 }
1420 #endif /* READ_ONLY */
1421
1422 void do_change_working_dir(int argc, char *argv[],
1423                            int sci_idx EXT2FS_ATTR((unused)),
1424                            void *infop EXT2FS_ATTR((unused)))
1425 {
1426         ext2_ino_t      inode;
1427         int             retval;
1428
1429         if (common_inode_args_process(argc, argv, &inode, 0))
1430                 return;
1431
1432         retval = ext2fs_check_directory(current_fs, inode);
1433         if (retval) {
1434                 com_err(argv[1], retval, 0);
1435                 return;
1436         }
1437         cwd = inode;
1438         return;
1439 }
1440
1441 void do_print_working_directory(int argc, char *argv[],
1442                                 int sci_idx EXT2FS_ATTR((unused)),
1443                                 void *infop EXT2FS_ATTR((unused)))
1444 {
1445         int     retval;
1446         char    *pathname = NULL;
1447
1448         if (common_args_process(argc, argv, 1, 1,
1449                                 "print_working_directory", "", 0))
1450                 return;
1451
1452         retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1453         if (retval) {
1454                 com_err(argv[0], retval,
1455                         "while trying to get pathname of cwd");
1456         }
1457         printf("[pwd]   INODE: %6u  PATH: %s\n",
1458                cwd, pathname ? pathname : "NULL");
1459         if (pathname) {
1460                 free(pathname);
1461                 pathname = NULL;
1462         }
1463         retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1464         if (retval) {
1465                 com_err(argv[0], retval,
1466                         "while trying to get pathname of root");
1467         }
1468         printf("[root]  INODE: %6u  PATH: %s\n",
1469                root, pathname ? pathname : "NULL");
1470         if (pathname) {
1471                 free(pathname);
1472                 pathname = NULL;
1473         }
1474         return;
1475 }
1476
1477 #ifndef READ_ONLY
1478 static void make_link(char *sourcename, char *destname)
1479 {
1480         ext2_ino_t      ino;
1481         struct ext2_inode inode;
1482         int             retval;
1483         ext2_ino_t      dir;
1484         char            *dest, *cp, *base_name;
1485
1486         /*
1487          * Get the source inode
1488          */
1489         ino = string_to_inode(sourcename);
1490         if (!ino)
1491                 return;
1492         base_name = strrchr(sourcename, '/');
1493         if (base_name)
1494                 base_name++;
1495         else
1496                 base_name = sourcename;
1497         /*
1498          * Figure out the destination.  First see if it exists and is
1499          * a directory.
1500          */
1501         if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1502                 dest = base_name;
1503         else {
1504                 /*
1505                  * OK, it doesn't exist.  See if it is
1506                  * '<dir>/basename' or 'basename'
1507                  */
1508                 cp = strrchr(destname, '/');
1509                 if (cp) {
1510                         *cp = 0;
1511                         dir = string_to_inode(destname);
1512                         if (!dir)
1513                                 return;
1514                         dest = cp+1;
1515                 } else {
1516                         dir = cwd;
1517                         dest = destname;
1518                 }
1519         }
1520
1521         if (debugfs_read_inode(ino, &inode, sourcename))
1522                 return;
1523
1524         retval = ext2fs_link(current_fs, dir, dest, ino,
1525                              ext2_file_type(inode.i_mode));
1526         if (retval)
1527                 com_err("make_link", retval, 0);
1528         return;
1529 }
1530
1531
1532 void do_link(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1533              void *infop EXT2FS_ATTR((unused)))
1534 {
1535         if (common_args_process(argc, argv, 3, 3, "link",
1536                                 "<source file> <dest_name>", CHECK_FS_RW))
1537                 return;
1538
1539         make_link(argv[1], argv[2]);
1540 }
1541
1542 static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1543                             e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1544                             blk64_t ref_block EXT2FS_ATTR((unused)),
1545                             int ref_offset EXT2FS_ATTR((unused)),
1546                             void *private EXT2FS_ATTR((unused)))
1547 {
1548         blk64_t block;
1549
1550         block = *blocknr;
1551         ext2fs_block_alloc_stats2(fs, block, +1);
1552         return 0;
1553 }
1554
1555 void do_undel(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1556               void *infop EXT2FS_ATTR((unused)))
1557 {
1558         ext2_ino_t      ino;
1559         struct ext2_inode inode;
1560
1561         if (common_args_process(argc, argv, 2, 3, "undelete",
1562                                 "<inode_num> [dest_name]",
1563                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1564                 return;
1565
1566         ino = string_to_inode(argv[1]);
1567         if (!ino)
1568                 return;
1569
1570         if (debugfs_read_inode(ino, &inode, argv[1]))
1571                 return;
1572
1573         if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
1574                 com_err(argv[1], 0, "Inode is not marked as deleted");
1575                 return;
1576         }
1577
1578         /*
1579          * XXX this function doesn't handle changing the links count on the
1580          * parent directory when undeleting a directory.
1581          */
1582         inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1583         inode.i_dtime = 0;
1584
1585         if (debugfs_write_inode(ino, &inode, argv[0]))
1586                 return;
1587
1588         ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1589                               mark_blocks_proc, NULL);
1590
1591         ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1592
1593         if (argc > 2)
1594                 make_link(argv[1], argv[2]);
1595 }
1596
1597 static void unlink_file_by_name(char *filename)
1598 {
1599         int             retval;
1600         ext2_ino_t      dir;
1601         char            *base_name;
1602
1603         base_name = strrchr(filename, '/');
1604         if (base_name) {
1605                 *base_name++ = '\0';
1606                 dir = string_to_inode(filename);
1607                 if (!dir)
1608                         return;
1609         } else {
1610                 dir = cwd;
1611                 base_name = filename;
1612         }
1613         retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1614         if (retval)
1615                 com_err("unlink_file_by_name", retval, 0);
1616         return;
1617 }
1618
1619 void do_unlink(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1620                void *infop EXT2FS_ATTR((unused)))
1621 {
1622         if (common_args_process(argc, argv, 2, 2, "link",
1623                                 "<pathname>", CHECK_FS_RW))
1624                 return;
1625
1626         unlink_file_by_name(argv[1]);
1627 }
1628
1629 void do_copy_inode(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1630                    void *infop EXT2FS_ATTR((unused)))
1631 {
1632         ext2_ino_t      src_ino, dest_ino;
1633         unsigned char   buf[4096];
1634
1635         if (common_args_process(argc, argv, 3, 3, "copy_inode",
1636                                 "<source file> <dest_name>", CHECK_FS_RW))
1637                 return;
1638
1639         src_ino = string_to_inode(argv[1]);
1640         if (!src_ino)
1641                 return;
1642
1643         dest_ino = string_to_inode(argv[2]);
1644         if (!dest_ino)
1645                 return;
1646
1647         if (debugfs_read_inode2(src_ino, (struct ext2_inode *) buf,
1648                                 argv[0], sizeof(buf), 0))
1649                 return;
1650
1651         if (debugfs_write_inode2(dest_ino, (struct ext2_inode *) buf,
1652                                  argv[0], sizeof(buf), 0))
1653                 return;
1654 }
1655
1656 #endif /* READ_ONLY */
1657
1658 void do_find_free_block(int argc, char *argv[],
1659                         int sci_idx EXT2FS_ATTR((unused)),
1660                         void *infop EXT2FS_ATTR((unused)))
1661 {
1662         blk64_t free_blk, goal, first_free = 0;
1663         int             count;
1664         errcode_t       retval;
1665         char            *tmp;
1666
1667         if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1668                 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1669                 return;
1670         }
1671         if (check_fs_open(argv[0]))
1672                 return;
1673
1674         if (argc > 1) {
1675                 count = strtol(argv[1],&tmp,0);
1676                 if (*tmp) {
1677                         com_err(argv[0], 0, "Bad count - %s", argv[1]);
1678                         return;
1679                 }
1680         } else
1681                 count = 1;
1682
1683         if (argc > 2) {
1684                 goal = strtol(argv[2], &tmp, 0);
1685                 if (*tmp) {
1686                         com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1687                         return;
1688                 }
1689         }
1690         else
1691                 goal = current_fs->super->s_first_data_block;
1692
1693         printf("Free blocks found: ");
1694         free_blk = goal - 1;
1695         while (count-- > 0) {
1696                 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
1697                                            &free_blk);
1698                 if (first_free) {
1699                         if (first_free == free_blk)
1700                                 break;
1701                 } else
1702                         first_free = free_blk;
1703                 if (retval) {
1704                         com_err("ext2fs_new_block", retval, 0);
1705                         return;
1706                 } else
1707                         printf("%llu ", (unsigned long long) free_blk);
1708         }
1709         printf("\n");
1710 }
1711
1712 void do_find_free_inode(int argc, char *argv[],
1713                         int sci_idx EXT2FS_ATTR((unused)),
1714                         void *infop EXT2FS_ATTR((unused)))
1715 {
1716         ext2_ino_t      free_inode, dir;
1717         int             mode;
1718         int             retval;
1719         char            *tmp;
1720
1721         if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1722                 com_err(argv[0], 0, "Usage: find_free_inode [dir [mode]]");
1723                 return;
1724         }
1725         if (check_fs_open(argv[0]))
1726                 return;
1727
1728         if (argc > 1) {
1729                 dir = strtol(argv[1], &tmp, 0);
1730                 if (*tmp) {
1731                         com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1732                         return;
1733                 }
1734         }
1735         else
1736                 dir = root;
1737         if (argc > 2) {
1738                 mode = strtol(argv[2], &tmp, 0);
1739                 if (*tmp) {
1740                         com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1741                         return;
1742                 }
1743         } else
1744                 mode = 010755;
1745
1746         retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1747         if (retval)
1748                 com_err("ext2fs_new_inode", retval, 0);
1749         else
1750                 printf("Free inode found: %u\n", free_inode);
1751 }
1752
1753 #ifndef READ_ONLY
1754 void do_write(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1755               void *infop EXT2FS_ATTR((unused)))
1756 {
1757         errcode_t       retval;
1758
1759         if (common_args_process(argc, argv, 3, 3, "write",
1760                                 "<native file> <new file>", CHECK_FS_RW))
1761                 return;
1762
1763         retval = do_write_internal(current_fs, cwd, argv[1], argv[2], root);
1764         if (retval)
1765                 com_err(argv[0], retval, 0);
1766 }
1767
1768 void do_mknod(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1769               void *infop EXT2FS_ATTR((unused)))
1770 {
1771         unsigned long   major, minor;
1772         errcode_t       retval;
1773         int             nr;
1774         struct stat     st;
1775
1776         if (check_fs_open(argv[0]))
1777                 return;
1778         if (argc < 3 || argv[2][1]) {
1779         usage:
1780                 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1781                 return;
1782         }
1783
1784         minor = major = 0;
1785         switch (argv[2][0]) {
1786                 case 'p':
1787                         st.st_mode = S_IFIFO;
1788                         nr = 3;
1789                         break;
1790                 case 'c':
1791                         st.st_mode = S_IFCHR;
1792                         nr = 5;
1793                         break;
1794                 case 'b':
1795                         st.st_mode = S_IFBLK;
1796                         nr = 5;
1797                         break;
1798                 default:
1799                         nr = 0;
1800         }
1801
1802         if (nr == 5) {
1803                 major = strtoul(argv[3], argv+3, 0);
1804                 minor = strtoul(argv[4], argv+4, 0);
1805                 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1806                         nr = 0;
1807         }
1808
1809         if (argc != nr)
1810                 goto usage;
1811
1812         st.st_rdev = makedev(major, minor);
1813         retval = do_mknod_internal(current_fs, cwd, argv[1],
1814                                    st.st_mode, st.st_rdev);
1815         if (retval)
1816                 com_err(argv[0], retval, 0);
1817 }
1818
1819 void do_mkdir(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1820               void *infop EXT2FS_ATTR((unused)))
1821 {
1822         errcode_t retval;
1823
1824         if (common_args_process(argc, argv, 2, 2, "mkdir",
1825                                 "<filename>", CHECK_FS_RW))
1826                 return;
1827
1828         retval = do_mkdir_internal(current_fs, cwd, argv[1], root);
1829         if (retval)
1830                 com_err(argv[0], retval, 0);
1831
1832 }
1833
1834 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1835                                e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1836                                blk64_t ref_block EXT2FS_ATTR((unused)),
1837                                int ref_offset EXT2FS_ATTR((unused)),
1838                                void *private)
1839 {
1840         blk64_t block = *blocknr;
1841         blk64_t *last_cluster = (blk64_t *)private;
1842         blk64_t cluster = EXT2FS_B2C(fs, block);
1843
1844         if (cluster == *last_cluster)
1845                 return 0;
1846
1847         *last_cluster = cluster;
1848
1849         ext2fs_block_alloc_stats2(fs, block, -1);
1850         return 0;
1851 }
1852
1853 static void kill_file_by_inode(ext2_ino_t inode)
1854 {
1855         struct ext2_inode inode_buf;
1856
1857         if (debugfs_read_inode(inode, &inode_buf, 0))
1858                 return;
1859         inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1860         if (debugfs_write_inode(inode, &inode_buf, 0))
1861                 return;
1862         if (ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf)) {
1863                 blk64_t last_cluster = 0;
1864                 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY,
1865                                       NULL, release_blocks_proc, &last_cluster);
1866         }
1867         printf("\n");
1868         ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1869                                   LINUX_S_ISDIR(inode_buf.i_mode));
1870 }
1871
1872
1873 void do_kill_file(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1874                   void *infop EXT2FS_ATTR((unused)))
1875 {
1876         ext2_ino_t inode_num;
1877
1878         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1879                 return;
1880
1881         kill_file_by_inode(inode_num);
1882 }
1883
1884 void do_rm(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1885            void *infop EXT2FS_ATTR((unused)))
1886 {
1887         int retval;
1888         ext2_ino_t inode_num;
1889         struct ext2_inode inode;
1890
1891         if (common_args_process(argc, argv, 2, 2, "rm",
1892                                 "<filename>", CHECK_FS_RW))
1893                 return;
1894
1895         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1896         if (retval) {
1897                 com_err(argv[0], retval, "while trying to resolve filename");
1898                 return;
1899         }
1900
1901         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1902                 return;
1903
1904         if (LINUX_S_ISDIR(inode.i_mode)) {
1905                 com_err(argv[0], 0, "file is a directory");
1906                 return;
1907         }
1908
1909         --inode.i_links_count;
1910         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1911                 return;
1912
1913         unlink_file_by_name(argv[1]);
1914         if (inode.i_links_count == 0)
1915                 kill_file_by_inode(inode_num);
1916 }
1917
1918 struct rd_struct {
1919         ext2_ino_t      parent;
1920         int             empty;
1921 };
1922
1923 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1924                       int       entry EXT2FS_ATTR((unused)),
1925                       struct ext2_dir_entry *dirent,
1926                       int       offset EXT2FS_ATTR((unused)),
1927                       int       blocksize EXT2FS_ATTR((unused)),
1928                       char      *buf EXT2FS_ATTR((unused)),
1929                       void      *private)
1930 {
1931         struct rd_struct *rds = (struct rd_struct *) private;
1932
1933         if (dirent->inode == 0)
1934                 return 0;
1935         if ((ext2fs_dirent_name_len(dirent) == 1) && (dirent->name[0] == '.'))
1936                 return 0;
1937         if ((ext2fs_dirent_name_len(dirent) == 2) && (dirent->name[0] == '.') &&
1938             (dirent->name[1] == '.')) {
1939                 rds->parent = dirent->inode;
1940                 return 0;
1941         }
1942         rds->empty = 0;
1943         return 0;
1944 }
1945
1946 void do_rmdir(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1947               void *infop EXT2FS_ATTR((unused)))
1948 {
1949         int retval;
1950         ext2_ino_t inode_num;
1951         struct ext2_inode inode;
1952         struct rd_struct rds;
1953
1954         if (common_args_process(argc, argv, 2, 2, "rmdir",
1955                                 "<filename>", CHECK_FS_RW))
1956                 return;
1957
1958         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1959         if (retval) {
1960                 com_err(argv[0], retval, "while trying to resolve filename");
1961                 return;
1962         }
1963
1964         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1965                 return;
1966
1967         if (!LINUX_S_ISDIR(inode.i_mode)) {
1968                 com_err(argv[0], 0, "file is not a directory");
1969                 return;
1970         }
1971
1972         rds.parent = 0;
1973         rds.empty = 1;
1974
1975         retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1976                                     0, rmdir_proc, &rds);
1977         if (retval) {
1978                 com_err(argv[0], retval, "while iterating over directory");
1979                 return;
1980         }
1981         if (rds.empty == 0) {
1982                 com_err(argv[0], 0, "directory not empty");
1983                 return;
1984         }
1985
1986         inode.i_links_count = 0;
1987         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1988                 return;
1989
1990         unlink_file_by_name(argv[1]);
1991         kill_file_by_inode(inode_num);
1992
1993         if (rds.parent) {
1994                 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
1995                         return;
1996                 if (inode.i_links_count > 1)
1997                         inode.i_links_count--;
1998                 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
1999                         return;
2000         }
2001 }
2002 #endif /* READ_ONLY */
2003
2004 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
2005                             char *argv[] EXT2FS_ATTR((unused)),
2006                             int sci_idx EXT2FS_ATTR((unused)),
2007                             void *infop EXT2FS_ATTR((unused)))
2008 {
2009         if (current_fs)
2010                 printf("Open mode: read-%s\n",
2011                        current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
2012         printf("Filesystem in use: %s\n",
2013                current_fs ? current_fs->device_name : "--none--");
2014 }
2015
2016 #ifndef READ_ONLY
2017 void do_expand_dir(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2018                     void *infop EXT2FS_ATTR((unused)))
2019 {
2020         ext2_ino_t inode;
2021         int retval;
2022
2023         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
2024                 return;
2025
2026         retval = ext2fs_expand_dir(current_fs, inode);
2027         if (retval)
2028                 com_err("ext2fs_expand_dir", retval, 0);
2029         return;
2030 }
2031
2032 void do_features(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2033                  void *infop EXT2FS_ATTR((unused)))
2034 {
2035         int     i;
2036
2037         if (check_fs_open(argv[0]))
2038                 return;
2039
2040         if ((argc != 1) && check_fs_read_write(argv[0]))
2041                 return;
2042         for (i=1; i < argc; i++) {
2043                 if (e2p_edit_feature(argv[i],
2044                                      &current_fs->super->s_feature_compat, 0))
2045                         com_err(argv[0], 0, "Unknown feature: %s\n",
2046                                 argv[i]);
2047                 else
2048                         ext2fs_mark_super_dirty(current_fs);
2049         }
2050         print_features(current_fs->super, stdout);
2051 }
2052 #endif /* READ_ONLY */
2053
2054 void do_bmap(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2055              void *infop EXT2FS_ATTR((unused)))
2056 {
2057         ext2_ino_t      ino;
2058         blk64_t         blk, pblk = 0;
2059         int             c, err, flags = 0, ret_flags = 0;
2060         errcode_t       errcode;
2061
2062         if (check_fs_open(argv[0]))
2063                 return;
2064
2065         reset_getopt();
2066         while ((c = getopt (argc, argv, "a")) != EOF) {
2067                 switch (c) {
2068                 case 'a':
2069                         flags |= BMAP_ALLOC;
2070                         break;
2071                 default:
2072                         goto print_usage;
2073                 }
2074         }
2075
2076         if (argc <= optind+1) {
2077         print_usage:
2078                 com_err(0, 0,
2079                         "Usage: bmap [-a] <file> logical_blk [physical_blk]");
2080                 return;
2081         }
2082
2083         ino = string_to_inode(argv[optind++]);
2084         if (!ino)
2085                 return;
2086         err = strtoblk(argv[0], argv[optind++], "logical block", &blk);
2087         if (err)
2088                 return;
2089
2090         if (argc > optind+1)
2091                 goto print_usage;
2092
2093         if (argc == optind+1) {
2094                 err = strtoblk(argv[0], argv[optind++],
2095                                "physical block", &pblk);
2096                 if (err)
2097                         return;
2098                 if (flags & BMAP_ALLOC) {
2099                         com_err(0, 0, "Can't set and allocate a block");
2100                         return;
2101                 }
2102                 flags |= BMAP_SET;
2103         }
2104
2105         errcode = ext2fs_bmap2(current_fs, ino, 0, 0, flags, blk,
2106                                &ret_flags, &pblk);
2107         if (errcode) {
2108                 com_err(argv[0], errcode,
2109                         "while mapping logical block %llu\n",
2110                         (unsigned long long) blk);
2111                 return;
2112         }
2113         printf("%llu", (unsigned long long) pblk);
2114         if (ret_flags & BMAP_RET_UNINIT)
2115                 fputs(" (uninit)", stdout);
2116         fputc('\n', stdout);
2117 }
2118
2119 void do_imap(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2120              void *infop EXT2FS_ATTR((unused)))
2121 {
2122         ext2_ino_t      ino;
2123         unsigned long   group, block, block_nr, offset;
2124
2125         if (common_args_process(argc, argv, 2, 2, argv[0],
2126                                 "<file>", 0))
2127                 return;
2128         ino = string_to_inode(argv[1]);
2129         if (!ino)
2130                 return;
2131
2132         group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
2133         offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
2134                 EXT2_INODE_SIZE(current_fs->super);
2135         block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
2136         if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
2137                 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
2138                         group);
2139                 return;
2140         }
2141         block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
2142                 block;
2143         offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
2144
2145         printf("Inode %u is part of block group %lu\n"
2146                "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
2147                block_nr, offset);
2148
2149 }
2150
2151 void do_idump(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2152               void *infop EXT2FS_ATTR((unused)))
2153 {
2154         struct ext2_inode_large *inode;
2155         ext2_ino_t      ino;
2156         unsigned char   *buf;
2157         errcode_t       err;
2158         unsigned int    isize, size, offset = 0;
2159         int             c, mode = 0;
2160
2161         reset_getopt();
2162         while ((c = getopt (argc, argv, "bex")) != EOF) {
2163                 if (mode || c == '?') {
2164                         com_err(argv[0], 0,
2165                                 "Usage: inode_dump [-b]|[-e] <file>");
2166                         return;
2167                 }
2168                 mode = c;
2169         }
2170         if (optind != argc-1)
2171                 return;
2172
2173         if (check_fs_open(argv[0]))
2174                 return;
2175
2176         ino = string_to_inode(argv[optind]);
2177         if (!ino)
2178                 return;
2179
2180         isize = EXT2_INODE_SIZE(current_fs->super);
2181         err = ext2fs_get_mem(isize, &buf);
2182         if (err) {
2183                 com_err(argv[0], err, "while allocating memory");
2184                 return;
2185         }
2186
2187         err = ext2fs_read_inode_full(current_fs, ino,
2188                                      (struct ext2_inode *)buf, isize);
2189         if (err) {
2190                 com_err(argv[0], err, "while reading inode %u", ino);
2191                 goto err;
2192         }
2193
2194         inode = (struct ext2_inode_large *) buf;
2195         size = isize;
2196         switch (mode) {
2197         case 'b':
2198                 offset = ((char *) (&inode->i_block)) - ((char *) buf);
2199                 size = sizeof(inode->i_block);
2200                 break;
2201         case 'x':
2202         case 'e':
2203                 if (size <= EXT2_GOOD_OLD_INODE_SIZE) {
2204                         com_err(argv[0], 0, "No extra space in inode");
2205                         goto err;
2206                 }
2207                 offset = EXT2_GOOD_OLD_INODE_SIZE + inode->i_extra_isize;
2208                 if (offset > size)
2209                         goto err;
2210                 size -= offset;
2211                 break;
2212         }
2213         if (mode == 'x')
2214                 raw_inode_xattr_dump(stdout, buf + offset, size);
2215         else
2216                 do_byte_hexdump(stdout, buf + offset, size);
2217 err:
2218         ext2fs_free_mem(&buf);
2219 }
2220
2221 #ifndef READ_ONLY
2222 void do_set_current_time(int argc, char *argv[],
2223                          int sci_idx EXT2FS_ATTR((unused)),
2224                          void *infop EXT2FS_ATTR((unused)))
2225 {
2226         __s64 now;
2227
2228         if (common_args_process(argc, argv, 2, 2, argv[0],
2229                                 "<time>", 0))
2230                 return;
2231
2232         now = string_to_time(argv[1]);
2233         if (now == -1) {
2234                 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
2235                         argv[1]);
2236                 return;
2237
2238         } else {
2239                 printf("Setting current time to %s\n", time_to_string(now));
2240                 current_fs->now = now;
2241         }
2242 }
2243 #endif /* READ_ONLY */
2244
2245 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
2246 {
2247         int compat, bit, ret;
2248         unsigned int feature_mask;
2249
2250         if (name) {
2251                 if (feature_type == E2P_FS_FEATURE)
2252                         ret = e2p_string2feature(name, &compat, &feature_mask);
2253                 else
2254                         ret = e2p_jrnl_string2feature(name, &compat,
2255                                                       &feature_mask);
2256                 if (ret)
2257                         return ret;
2258
2259                 if (!(supp[compat] & feature_mask))
2260                         return 1;
2261         } else {
2262                 for (compat = 0; compat < 3; compat++) {
2263                         for (bit = 0, feature_mask = 1; bit < 32;
2264                              bit++, feature_mask <<= 1) {
2265                                 if (supp[compat] & feature_mask) {
2266                                         if (feature_type == E2P_FS_FEATURE)
2267                                                 fprintf(stdout, " %s",
2268                                                 e2p_feature2string(compat,
2269                                                 feature_mask));
2270                                         else
2271                                                 fprintf(stdout, " %s",
2272                                                 e2p_jrnl_feature2string(compat,
2273                                                 feature_mask));
2274                                 }
2275                         }
2276                 }
2277                 fprintf(stdout, "\n");
2278         }
2279
2280         return 0;
2281 }
2282
2283 void do_supported_features(int argc, char *argv[],
2284                            int sci_idx EXT2FS_ATTR((unused)),
2285                            void *infop EXT2FS_ATTR((unused)))
2286 {
2287         int     ret;
2288         __u32   supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2289                             EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2290                             EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2291         __u32   jrnl_supp[3] = { JBD2_KNOWN_COMPAT_FEATURES,
2292                                  JBD2_KNOWN_INCOMPAT_FEATURES,
2293                                  JBD2_KNOWN_ROCOMPAT_FEATURES };
2294
2295         if (argc > 1) {
2296                 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2297                 if (ret) {
2298                         ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2299                                                 argv[1]);
2300                 }
2301                 if (ret)
2302                         com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2303                 else
2304                         fprintf(stdout, "Supported feature: %s\n", argv[1]);
2305         } else {
2306                 fprintf(stdout, "Supported features:");
2307                 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2308                 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2309         }
2310 }
2311
2312 #ifndef READ_ONLY
2313 void do_punch(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2314               void *infop EXT2FS_ATTR((unused)))
2315 {
2316         ext2_ino_t      ino;
2317         blk64_t         start, end;
2318         int             err;
2319         errcode_t       errcode;
2320
2321         if (common_args_process(argc, argv, 3, 4, argv[0],
2322                                 "<file> start_blk [end_blk]",
2323                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
2324                 return;
2325
2326         ino = string_to_inode(argv[1]);
2327         if (!ino)
2328                 return;
2329         err = strtoblk(argv[0], argv[2], "logical block", &start);
2330         if (err)
2331                 return;
2332         if (argc == 4) {
2333                 err = strtoblk(argv[0], argv[3], "logical block", &end);
2334                 if (err)
2335                         return;
2336         } else
2337                 end = ~0;
2338
2339         errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
2340
2341         if (errcode) {
2342                 com_err(argv[0], errcode,
2343                         "while truncating inode %u from %llu to %llu\n", ino,
2344                         (unsigned long long) start, (unsigned long long) end);
2345                 return;
2346         }
2347 }
2348
2349 void do_fallocate(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2350                   void *infop EXT2FS_ATTR((unused)))
2351 {
2352         ext2_ino_t      ino;
2353         blk64_t         start, end;
2354         int             err;
2355         errcode_t       errcode;
2356
2357         if (common_args_process(argc, argv, 3, 4, argv[0],
2358                                 "<file> start_blk [end_blk]",
2359                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
2360                 return;
2361
2362         ino = string_to_inode(argv[1]);
2363         if (!ino)
2364                 return;
2365         err = strtoblk(argv[0], argv[2], "logical block", &start);
2366         if (err)
2367                 return;
2368         if (argc == 4) {
2369                 err = strtoblk(argv[0], argv[3], "logical block", &end);
2370                 if (err)
2371                         return;
2372         } else
2373                 end = ~0;
2374
2375         errcode = ext2fs_fallocate(current_fs, EXT2_FALLOCATE_INIT_BEYOND_EOF,
2376                                    ino, NULL, ~0ULL, start, end - start + 1);
2377
2378         if (errcode) {
2379                 com_err(argv[0], errcode,
2380                         "while fallocating inode %u from %llu to %llu\n", ino,
2381                         (unsigned long long) start, (unsigned long long) end);
2382                 return;
2383         }
2384 }
2385
2386 void do_symlink(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2387                 void *infop EXT2FS_ATTR((unused)))
2388 {
2389         errcode_t       retval;
2390
2391         if (common_args_process(argc, argv, 3, 3, "symlink",
2392                                 "<filename> <target>", CHECK_FS_RW))
2393                 return;
2394
2395         retval = do_symlink_internal(current_fs, cwd, argv[1], argv[2], root);
2396         if (retval)
2397                 com_err(argv[0], retval, 0);
2398
2399 }
2400 #endif /* READ_ONLY */
2401
2402 #if CONFIG_MMP
2403 void do_dump_mmp(int argc EXT2FS_ATTR((unused)), char *argv[],
2404                  int sci_idx EXT2FS_ATTR((unused)),
2405                  void *infop EXT2FS_ATTR((unused)))
2406 {
2407         struct mmp_struct *mmp_s;
2408         unsigned long long mmp_block;
2409         time_t t;
2410         errcode_t retval = 0;
2411
2412         if (check_fs_open(argv[0]))
2413                 return;
2414
2415         if (argc > 1) {
2416                 char *end = NULL;
2417                 mmp_block = strtoull(argv[1], &end, 0);
2418                 if (end == argv[0] || mmp_block == 0) {
2419                         fprintf(stderr, "%s: invalid MMP block '%s' given\n",
2420                                 argv[0], argv[1]);
2421                         return;
2422                 }
2423         } else {
2424                 mmp_block = current_fs->super->s_mmp_block;
2425         }
2426
2427         if (mmp_block == 0) {
2428                 fprintf(stderr, "%s: MMP: not active on this filesystem.\n",
2429                         argv[0]);
2430                 return;
2431         }
2432
2433         if (current_fs->mmp_buf == NULL) {
2434                 retval = ext2fs_get_mem(current_fs->blocksize,
2435                                         &current_fs->mmp_buf);
2436                 if (retval) {
2437                         com_err(argv[0], retval, "allocating MMP buffer.\n");
2438                         return;
2439                 }
2440         }
2441
2442         mmp_s = current_fs->mmp_buf;
2443
2444         retval = ext2fs_mmp_read(current_fs, mmp_block, current_fs->mmp_buf);
2445         if (retval) {
2446                 com_err(argv[0], retval, "reading MMP block %llu.\n",
2447                         (unsigned long long) mmp_block);
2448                 return;
2449         }
2450
2451         t = mmp_s->mmp_time;
2452         fprintf(stdout, "block_number: %llu\n",
2453                 (unsigned long long) current_fs->super->s_mmp_block);
2454         fprintf(stdout, "update_interval: %d\n",
2455                 current_fs->super->s_mmp_update_interval);
2456         fprintf(stdout, "check_interval: %d\n", mmp_s->mmp_check_interval);
2457         fprintf(stdout, "sequence: %08x\n", mmp_s->mmp_seq);
2458         fprintf(stdout, "time: %llu -- %s",
2459                 (unsigned long long) mmp_s->mmp_time, ctime(&t));
2460         fprintf(stdout, "node_name: %.*s\n",
2461                 EXT2_LEN_STR(mmp_s->mmp_nodename));
2462         fprintf(stdout, "device_name: %.*s\n",
2463                 EXT2_LEN_STR(mmp_s->mmp_bdevname));
2464         fprintf(stdout, "magic: 0x%x\n", mmp_s->mmp_magic);
2465         fprintf(stdout, "checksum: 0x%08x\n", mmp_s->mmp_checksum);
2466 }
2467
2468 void do_clear_mmp(int argc EXT2FS_ATTR((unused)), char *argv[],
2469                   int sci_idx EXT2FS_ATTR((unused)),
2470                   void *infop EXT2FS_ATTR((unused)))
2471 {
2472         struct mmp_struct *mmp_s;
2473         unsigned long long mmp_block;
2474         time_t t;
2475         errcode_t retval = 0;
2476
2477         if (check_fs_open(argv[0]))
2478                 return;
2479
2480         retval = ext2fs_mmp_clear(current_fs);
2481         if (retval)
2482                 com_err(argv[0], retval, "Error clearing MMP block.\n");
2483 }
2484 #else
2485 void do_dump_mmp(int argc EXT2FS_ATTR((unused)),
2486                  char *argv[] EXT2FS_ATTR((unused)),
2487                  int sci_idx EXT2FS_ATTR((unused)),
2488                  void *infop EXT2FS_ATTR((unused)))
2489 {
2490         fprintf(stdout, "MMP is unsupported, please recompile with "
2491                         "--enable-mmp\n");
2492 }
2493
2494 void do_clear_mmp(int argc EXT2FS_ATTR((unused)),
2495                  char *argv[] EXT2FS_ATTR((unused)),
2496                  int sci_idx EXT2FS_ATTR((unused)),
2497                  void *infop EXT2FS_ATTR((unused)))
2498 {
2499         do_dump_mmp(argc, argv, sci_idx, infop);
2500 }
2501 #endif
2502
2503 static int source_file(const char *cmd_file, int ss_idx)
2504 {
2505         FILE            *f;
2506         char            buf[BUFSIZ];
2507         char            *cp;
2508         int             exit_status = 0;
2509         int             retval;
2510
2511         if (strcmp(cmd_file, "-") == 0)
2512                 f = stdin;
2513         else {
2514                 f = fopen(cmd_file, "r");
2515                 if (!f) {
2516                         perror(cmd_file);
2517                         exit(1);
2518                 }
2519         }
2520         fflush(stdout);
2521         fflush(stderr);
2522         setbuf(stdout, NULL);
2523         setbuf(stderr, NULL);
2524         while (!feof(f)) {
2525                 if (fgets(buf, sizeof(buf), f) == NULL)
2526                         break;
2527                 if (buf[0] == '#') {
2528                         printf("%s", buf);
2529                         continue;
2530                 }
2531                 cp = strchr(buf, '\n');
2532                 if (cp)
2533                         *cp = 0;
2534                 cp = strchr(buf, '\r');
2535                 if (cp)
2536                         *cp = 0;
2537                 printf("debugfs: %s\n", buf);
2538                 retval = ss_execute_line(ss_idx, buf);
2539                 if (retval) {
2540                         ss_perror(ss_idx, retval, buf);
2541                         exit_status++;
2542                 }
2543         }
2544         if (f != stdin)
2545                 fclose(f);
2546         return exit_status;
2547 }
2548
2549 int main(int argc, char **argv)
2550 {
2551         int             retval;
2552         const char      *usage =
2553                 "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] "
2554                 "[-R request] [-d data_source_device] [-i] [-n] [-D] [-V] ["
2555 #ifndef READ_ONLY
2556                 "[-m] [-w] [-z undo_file] "
2557 #endif
2558                 "[-c]] [device]";
2559         int             c;
2560         int             open_flags = EXT2_FLAG_SOFTSUPP_FEATURES |
2561                                 EXT2_FLAG_64BITS | EXT2_FLAG_THREADS;
2562         char            *request = 0;
2563         int             exit_status = 0;
2564         char            *cmd_file = 0;
2565         blk64_t         superblock = 0;
2566         blk64_t         blocksize = 0;
2567         int             catastrophic = 0;
2568         char            *data_filename = 0;
2569 #ifdef READ_ONLY
2570         const char      *opt_string = "b:cd:Df:inR:s:V";
2571 #else
2572         const char      *opt_string = "b:cd:Df:imnR:s:Vwz:";
2573 #endif
2574         char            *undo_file = NULL;
2575 #ifdef CONFIG_JBD_DEBUG
2576         char            *jbd_debug;
2577 #endif
2578
2579         if (debug_prog_name == 0)
2580 #ifdef READ_ONLY
2581                 debug_prog_name = "rdebugfs";
2582 #else
2583                 debug_prog_name = "debugfs";
2584 #endif
2585         add_error_table(&et_ext2_error_table);
2586         fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2587                  E2FSPROGS_VERSION, E2FSPROGS_DATE);
2588
2589 #ifdef CONFIG_JBD_DEBUG
2590         jbd_debug = ss_safe_getenv("DEBUGFS_JBD_DEBUG");
2591         if (jbd_debug) {
2592                 int res = sscanf(jbd_debug, "%d", &journal_enable_debug);
2593
2594                 if (res != 1) {
2595                         fprintf(stderr,
2596                                 "DEBUGFS_JBD_DEBUG \"%s\" not an integer\n\n",
2597                                 jbd_debug);
2598                         exit(1);
2599                 }
2600         }
2601 #endif
2602         while ((c = getopt (argc, argv, opt_string)) != EOF) {
2603                 switch (c) {
2604                 case 'R':
2605                         request = optarg;
2606                         break;
2607                 case 'f':
2608                         cmd_file = optarg;
2609                         break;
2610                 case 'd':
2611                         data_filename = optarg;
2612                         break;
2613                 case 'i':
2614                         open_flags |= EXT2_FLAG_IMAGE_FILE;
2615                         break;
2616                 case 'm':
2617                         open_flags |= EXT2_FLAG_SKIP_MMP;
2618                         break;
2619                 case 'n':
2620                         open_flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
2621                         break;
2622 #ifndef READ_ONLY
2623                 case 'w':
2624                         open_flags |= EXT2_FLAG_RW;
2625                         break;
2626 #endif
2627                 case 'D':
2628                         open_flags |= EXT2_FLAG_DIRECT_IO;
2629                         break;
2630                 case 'b':
2631                         blocksize = parse_ulong(optarg, argv[0],
2632                                                 "block size", 0);
2633                         break;
2634                 case 's':
2635                         retval = strtoblk(argv[0], optarg,
2636                                           "superblock block number",
2637                                           &superblock);
2638                         if (retval)
2639                                 return 1;
2640                         break;
2641                 case 'c':
2642                         catastrophic = 1;
2643                         break;
2644                 case 'V':
2645                         /* Print version number and exit */
2646                         fprintf(stderr, "\tUsing %s\n",
2647                                 error_message(EXT2_ET_BASE));
2648                         exit(0);
2649 #ifndef READ_ONLY
2650                 case 'z':
2651                         undo_file = optarg;
2652                         break;
2653 #endif
2654                 default:
2655                         com_err(argv[0], 0, usage, debug_prog_name);
2656                         return 1;
2657                 }
2658         }
2659         if (optind < argc)
2660                 open_filesystem(argv[optind], open_flags,
2661                                 superblock, blocksize, catastrophic,
2662                                 data_filename, undo_file);
2663
2664         ss_sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2665                                           &debug_cmds, &retval);
2666         if (retval) {
2667                 ss_perror(ss_sci_idx, retval, "creating invocation");
2668                 exit(1);
2669         }
2670         ss_get_readline(ss_sci_idx);
2671
2672         (void) ss_add_request_table(ss_sci_idx, &ss_std_requests, 1, &retval);
2673         if (retval) {
2674                 ss_perror(ss_sci_idx, retval, "adding standard requests");
2675                 exit (1);
2676         }
2677         if (extra_cmds)
2678                 ss_add_request_table(ss_sci_idx, extra_cmds, 1, &retval);
2679         if (retval) {
2680                 ss_perror(ss_sci_idx, retval, "adding extra requests");
2681                 exit (1);
2682         }
2683         if (request) {
2684                 retval = 0;
2685                 retval = ss_execute_line(ss_sci_idx, request);
2686                 if (retval) {
2687                         ss_perror(ss_sci_idx, retval, request);
2688                         exit_status++;
2689                 }
2690         } else if (cmd_file) {
2691                 exit_status = source_file(cmd_file, ss_sci_idx);
2692         } else {
2693                 ss_listen(ss_sci_idx);
2694         }
2695
2696         ss_delete_invocation(ss_sci_idx);
2697
2698         if (current_fs)
2699                 close_filesystem();
2700
2701         remove_error_table(&et_ext2_error_table);
2702         return exit_status;
2703 }