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, "iwfecb:s:d:Dz:")) != 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 's':
 272                         err = strtoblk(argv[0], optarg,
 273                                        "superblock block number", &superblock);
 274                         if (err)
 275                                 return;
 276                         break;
 277                 case 'z':
 278 #ifdef READ_ONLY
 279                         goto print_usage;
 280 #else
 281                         undo_file = optarg;
 282 #endif
 283                         break;
 284                 default:
 285                         goto print_usage;
 286                 }
 287         }
 288         if (optind != argc-1) {
 289                 goto print_usage;
 290         }
 291         if (check_fs_not_open(argv[0]))
 292                 return;
 293         open_filesystem(argv[optind], open_flags,
 294                         superblock, blocksize, catastrophic,
 295                         data_filename, undo_file);
 296         return;
 297
 298 print_usage:
 299         fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] "
 300 #ifdef READ_ONLY
 301                 "[-d image_filename] [-z undo_file] [-c] [-i] [-f] [-e] [-D] "
 302 #else
 303                 "[-d image_filename] [-c] [-i] [-f] [-e] [-D] [-w] "
 304 #endif
 305                 "<device>\n", argv[0]);
 306 }
 307
 308 void do_lcd(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
 309             void *infop EXT2FS_ATTR((unused)))
 310 {
 311         if (argc != 2) {
 312                 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>");
 313                 return;
 314         }
 315
 316         if (chdir(argv[1]) == -1) {
 317                 com_err(argv[0], errno,
 318                         "while trying to change native directory to %s",
 319                         argv[1]);
 320                 return;
 321         }
 322 }
 323
 324 static void close_filesystem(NOARGS)
 325 {
 326         int     retval;
 327
 328         if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
 329                 retval = ext2fs_write_inode_bitmap(current_fs);
 330                 if (retval)
 331                         com_err("ext2fs_write_inode_bitmap", retval, 0);
 332         }
 333         if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
 334                 retval = ext2fs_write_block_bitmap(current_fs);
 335                 if (retval)
 336                         com_err("ext2fs_write_block_bitmap", retval, 0);
 337         }
 338         if (current_qctx)
 339                 quota_release_context(&current_qctx);
 340         retval = ext2fs_close_free(&current_fs);
 341         if (retval)
 342                 com_err("ext2fs_close", retval, 0);
 343         return;
 344 }
 345
 346 void do_close_filesys(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
 347                       void *infop EXT2FS_ATTR((unused)))
 348 {
 349         int     c;
 350
 351         if (check_fs_open(argv[0]))
 352                 return;
 353
 354         reset_getopt();
 355         while ((c = getopt (argc, argv, "a")) != EOF) {
 356                 switch (c) {
 357                 case 'a':
 358                         current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
 359                         break;
 360                 default:
 361                         goto print_usage;
 362                 }
 363         }
 364
 365         if (argc > optind) {
 366         print_usage:
 367                 com_err(0, 0, "Usage: close_filesys [-a]");
 368                 return;
 369         }
 370
 371         close_filesystem();
 372 }
 373
 374 #ifndef READ_ONLY
 375 void do_init_filesys(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
 376                      void *infop EXT2FS_ATTR((unused)))
 377 {
 378         struct ext2_super_block param;
 379         errcode_t       retval;
 380         int             err;
 381         blk64_t         blocks;
 382
 383         if (common_args_process(argc, argv, 3, 3, "initialize",
 384                                 "<device> <blocks>", CHECK_FS_NOTOPEN))
 385                 return;
 386
 387         memset(&param, 0, sizeof(struct ext2_super_block));
 388         err = strtoblk(argv[0], argv[2], "blocks count", &blocks);
 389         if (err)
 390                 return;
 391         ext2fs_blocks_count_set(&param, blocks);
 392         retval = ext2fs_initialize(argv[1], 0, &param,
 393                                    unix_io_manager, &current_fs);
 394         if (retval) {
 395                 com_err(argv[1], retval, "while initializing filesystem");
 396                 current_fs = NULL;
 397                 return;
 398         }
 399         root = cwd = EXT2_ROOT_INO;
 400         return;
 401 }
 402
 403 static void print_features(struct ext2_super_block * s, FILE *f)
 404 {
 405         int     i, j, printed=0;
 406         __u32   *mask = &s->s_feature_compat, m;
 407
 408         fputs("Filesystem features:", f);
 409         for (i=0; i <3; i++,mask++) {
 410                 for (j=0,m=1; j < 32; j++, m<<=1) {
 411                         if (*mask & m) {
 412                                 fprintf(f, " %s", e2p_feature2string(i, m));
 413                                 printed++;
 414                         }
 415                 }
 416         }
 417         if (printed == 0)
 418                 fputs("(none)", f);
 419         fputs("\n", f);
 420 }
 421 #endif /* READ_ONLY */
 422
 423 static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask,
 424                           const char *str, int *first, FILE *f)
 425 {
 426         if (ext2fs_bg_flags_test(fs, group, mask)) {
 427                 if (*first) {
 428                         fputs("           [", f);
 429                         *first = 0;
 430                 } else
 431                         fputs(", ", f);
 432                 fputs(str, f);
 433         }
 434 }
 435
 436 void do_show_super_stats(int argc, char *argv[],
 437                          int sci_idx EXT2FS_ATTR((unused)),
 438                          void *infop EXT2FS_ATTR((unused)))
 439 {
 440         const char *units ="block";
 441         dgrp_t  i;
 442         FILE    *out;
 443         int     c, header_only = 0;
 444         int     numdirs = 0, first, gdt_csum;
 445
 446         reset_getopt();
 447         while ((c = getopt (argc, argv, "h")) != EOF) {
 448                 switch (c) {
 449                 case 'h':
 450                         header_only++;
 451                         break;
 452                 default:
 453                         goto print_usage;
 454                 }
 455         }
 456         if (optind != argc) {
 457                 goto print_usage;
 458         }
 459         if (check_fs_open(argv[0]))
 460                 return;
 461         out = open_pager();
 462
 463         if (ext2fs_has_feature_bigalloc(current_fs->super))
 464                 units = "cluster";
 465
 466         list_super2(current_fs->super, out);
 467         if (ext2fs_has_feature_metadata_csum(current_fs->super) &&
 468             !ext2fs_superblock_csum_verify(current_fs,
 469                                            current_fs->super)) {
 470                 __u32 orig_csum = current_fs->super->s_checksum;
 471
 472                 ext2fs_superblock_csum_set(current_fs,
 473                                            current_fs->super);
 474                 fprintf(out, "Expected Checksum:        0x%08x\n",
 475                         current_fs->super->s_checksum);
 476                 current_fs->super->s_checksum = orig_csum;
 477         }
 478         for (i=0; i < current_fs->group_desc_count; i++)
 479                 numdirs += ext2fs_bg_used_dirs_count(current_fs, i);
 480         fprintf(out, "Directories:              %u\n", numdirs);
 481
 482         if (header_only) {
 483                 close_pager(out);
 484                 return;
 485         }
 486
 487         gdt_csum = ext2fs_has_group_desc_csum(current_fs);
 488         for (i = 0; i < current_fs->group_desc_count; i++) {
 489                 fprintf(out, " Group %2d: block bitmap at %llu, "
 490                         "inode bitmap at %llu, "
 491                         "inode table at %llu\n"
 492                         "           %u free %s%s, "
 493                         "%u free %s, "
 494                         "%u used %s%s", i,
 495                         (unsigned long long) ext2fs_block_bitmap_loc(current_fs, i),
 496                         (unsigned long long) ext2fs_inode_bitmap_loc(current_fs, i),
 497                         (unsigned long long) ext2fs_inode_table_loc(current_fs, i),
 498                         ext2fs_bg_free_blocks_count(current_fs, i),
 499                         units,
 500                         ext2fs_bg_free_blocks_count(current_fs, i) != 1 ?
 501                         "s" : "",
 502                         ext2fs_bg_free_inodes_count(current_fs, i),
 503                         ext2fs_bg_free_inodes_count(current_fs, i) != 1 ?
 504                         "inodes" : "inode",
 505                         ext2fs_bg_used_dirs_count(current_fs, i),
 506                         ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories"
 507                                 : "directory", gdt_csum ? ", " : "\n");
 508                 if (gdt_csum)
 509                         fprintf(out, "%u unused %s\n",
 510                                 ext2fs_bg_itable_unused(current_fs, i),
 511                                 ext2fs_bg_itable_unused(current_fs, i) != 1 ?
 512                                 "inodes" : "inode");
 513                 first = 1;
 514                 print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init",
 515                               &first, out);
 516                 print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init",
 517                               &first, out);
 518                 if (gdt_csum) {
 519                         fprintf(out, "%sChecksum 0x%04x",
 520                                 first ? "           [":", ", ext2fs_bg_checksum(current_fs, i));
 521                         first = 0;
 522                 }
 523                 if (!first)
 524                         fputs("]\n", out);
 525         }
 526         close_pager(out);
 527         return;
 528 print_usage:
 529         fprintf(stderr, "%s: Usage: show_super_stats [-h]\n", argv[0]);
 530 }
 531
 532 #ifndef READ_ONLY
 533 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
 534                       char **argv EXT2FS_ATTR((unused)),
 535                       int sci_idx EXT2FS_ATTR((unused)),
 536                       void *infop EXT2FS_ATTR((unused)))
 537 {
 538         if (check_fs_open(argv[0]))
 539                 return;
 540         if (check_fs_read_write(argv[0]))
 541                 return;
 542
 543         if (argv[1] && !strcmp(argv[1], "-clean"))
 544                 current_fs->super->s_state |= EXT2_VALID_FS;
 545         else
 546                 current_fs->super->s_state &= ~EXT2_VALID_FS;
 547         ext2fs_mark_super_dirty(current_fs);
 548 }
 549 #endif /* READ_ONLY */
 550
 551 struct list_blocks_struct {
 552         FILE            *f;
 553         e2_blkcnt_t     total;
 554         blk64_t         first_block, last_block;
 555         e2_blkcnt_t     first_bcnt, last_bcnt;
 556         e2_blkcnt_t     first;
 557 };
 558
 559 static void finish_range(struct list_blocks_struct *lb)
 560 {
 561         if (lb->first_block == 0)
 562                 return;
 563         if (lb->first)
 564                 lb->first = 0;
 565         else
 566                 fprintf(lb->f, ", ");
 567         if (lb->first_block == lb->last_block)
 568                 fprintf(lb->f, "(%lld):%llu",
 569                         (long long)lb->first_bcnt,
 570                         (unsigned long long) lb->first_block);
 571         else
 572                 fprintf(lb->f, "(%lld-%lld):%llu-%llu",
 573                         (long long)lb->first_bcnt, (long long)lb->last_bcnt,
 574                         (unsigned long long) lb->first_block,
 575                         (unsigned long long) lb->last_block);
 576         lb->first_block = 0;
 577 }
 578
 579 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
 580                             blk64_t *blocknr, e2_blkcnt_t blockcnt,
 581                             blk64_t ref_block EXT2FS_ATTR((unused)),
 582                             int ref_offset EXT2FS_ATTR((unused)),
 583                             void *private)
 584 {
 585         struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
 586
 587         lb->total++;
 588         if (blockcnt >= 0) {
 589                 /*
 590                  * See if we can add on to the existing range (if it exists)
 591                  */
 592                 if (lb->first_block &&
 593                     (lb->last_block+1 == *blocknr) &&
 594                     (lb->last_bcnt+1 == blockcnt)) {
 595                         lb->last_block = *blocknr;
 596                         lb->last_bcnt = blockcnt;
 597                         return 0;
 598                 }
 599                 /*
 600                  * Start a new range.
 601                  */
 602                 finish_range(lb);
 603                 lb->first_block = lb->last_block = *blocknr;
 604                 lb->first_bcnt = lb->last_bcnt = blockcnt;
 605                 return 0;
 606         }
 607         /*
 608          * Not a normal block.  Always force a new range.
 609          */
 610         finish_range(lb);
 611         if (lb->first)
 612                 lb->first = 0;
 613         else
 614                 fprintf(lb->f, ", ");
 615         if (blockcnt == -1)
 616                 fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr);
 617         else if (blockcnt == -2)
 618                 fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr);
 619         else if (blockcnt == -3)
 620                 fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr);
 621         return 0;
 622 }
 623
 624 static void internal_dump_inode_extra(FILE *out,
 625                                       const char *prefix EXT2FS_ATTR((unused)),
 626                                       ext2_ino_t inode_num EXT2FS_ATTR((unused)),
 627                                       struct ext2_inode_large *inode)
 628 {
 629         fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
 630         if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
 631                         EXT2_GOOD_OLD_INODE_SIZE) {
 632                 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
 633                                 inode->i_extra_isize);
 634                 return;
 635         }
 636 }
 637
 638 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
 639 {
 640         struct list_blocks_struct lb;
 641
 642         fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
 643         lb.total = 0;
 644         lb.first_block = 0;
 645         lb.f = f;
 646         lb.first = 1;
 647         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
 648                               list_blocks_proc, (void *)&lb);
 649         finish_range(&lb);
 650         if (lb.total)
 651                 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
 652         fprintf(f,"\n");
 653 }
 654
 655 static int int_log10(unsigned long long arg)
 656 {
 657         int     l = 0;
 658
 659         arg = arg / 10;
 660         while (arg) {
 661                 l++;
 662                 arg = arg / 10;
 663         }
 664         return l;
 665 }
 666
 667 #define DUMP_LEAF_EXTENTS       0x01
 668 #define DUMP_NODE_EXTENTS       0x02
 669 #define DUMP_EXTENT_TABLE       0x04
 670
 671 static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino,
 672                          int flags, int logical_width, int physical_width)
 673 {
 674         ext2_extent_handle_t    handle;
 675         struct ext2fs_extent    extent;
 676         struct ext2_extent_info info;
 677         int                     op = EXT2_EXTENT_ROOT;
 678         unsigned int            printed = 0;
 679         errcode_t               errcode;
 680
 681         errcode = ext2fs_extent_open(current_fs, ino, &handle);
 682         if (errcode)
 683                 return;
 684
 685         if (flags & DUMP_EXTENT_TABLE)
 686                 fprintf(f, "Level Entries %*s %*s Length Flags\n",
 687                         (logical_width*2)+3, "Logical",
 688                         (physical_width*2)+3, "Physical");
 689         else
 690                 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix);
 691
 692         while (1) {
 693                 errcode = ext2fs_extent_get(handle, op, &extent);
 694
 695                 if (errcode)
 696                         break;
 697
 698                 op = EXT2_EXTENT_NEXT;
 699
 700                 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 701                         continue;
 702
 703                 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
 704                         if ((flags & DUMP_LEAF_EXTENTS) == 0)
 705                                 continue;
 706                 } else {
 707                         if ((flags & DUMP_NODE_EXTENTS) == 0)
 708                                 continue;
 709                 }
 710
 711                 errcode = ext2fs_extent_get_info(handle, &info);
 712                 if (errcode)
 713                         continue;
 714
 715                 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) {
 716                         if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 717                                 continue;
 718
 719                         if (flags & DUMP_EXTENT_TABLE) {
 720                                 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 721                                         "%*llu%*s %6u\n",
 722                                         info.curr_level, info.max_depth,
 723                                         info.curr_entry, info.num_entries,
 724                                         logical_width,
 725                                         (unsigned long long) extent.e_lblk,
 726                                         logical_width,
 727                                         (unsigned long long) extent.e_lblk + (extent.e_len - 1),
 728                                         physical_width,
 729                                         (unsigned long long) extent.e_pblk,
 730                                         physical_width+3, "", extent.e_len);
 731                                 continue;
 732                         }
 733
 734                         fprintf(f, "%s(ETB%d):%llu",
 735                                 printed ? ", " : "", info.curr_level,
 736                                 (unsigned long long) extent.e_pblk);
 737                         printed = 1;
 738                         continue;
 739                 }
 740
 741                 if (flags & DUMP_EXTENT_TABLE) {
 742                         fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 743                                 "%*llu - %*llu %6u %s\n",
 744                                 info.curr_level, info.max_depth,
 745                                 info.curr_entry, info.num_entries,
 746                                 logical_width,
 747                                 (unsigned long long) extent.e_lblk,
 748                                 logical_width,
 749                                 (unsigned long long) extent.e_lblk + (extent.e_len - 1),
 750                                 physical_width,
 751                                 (unsigned long long) extent.e_pblk,
 752                                 physical_width,
 753                                 (unsigned long long) extent.e_pblk + (extent.e_len - 1),
 754                                 extent.e_len,
 755                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 756                                         "Uninit" : "");
 757                         continue;
 758                 }
 759
 760                 if (extent.e_len == 0)
 761                         continue;
 762                 else if (extent.e_len == 1)
 763                         fprintf(f,
 764                                 "%s(%lld%s):%lld",
 765                                 printed ? ", " : "",
 766                                 (unsigned long long) extent.e_lblk,
 767                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 768                                 "[u]" : "",
 769                                 (unsigned long long) extent.e_pblk);
 770                 else
 771                         fprintf(f,
 772                                 "%s(%lld-%lld%s):%lld-%lld",
 773                                 printed ? ", " : "",
 774                                 (unsigned long long) extent.e_lblk,
 775                                 (unsigned long long) extent.e_lblk + (extent.e_len - 1),
 776                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 777                                         "[u]" : "",
 778                                 (unsigned long long) extent.e_pblk,
 779                                 (unsigned long long) extent.e_pblk + (extent.e_len - 1));
 780                 printed = 1;
 781         }
 782         if (printed)
 783                 fprintf(f, "\n");
 784         ext2fs_extent_free(handle);
 785 }
 786
 787 static void dump_inline_data(FILE *out, const char *prefix, ext2_ino_t inode_num)
 788 {
 789         errcode_t retval;
 790         size_t size;
 791
 792         retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
 793         if (!retval)
 794                 fprintf(out, "%sSize of inline data: %zu\n", prefix, size);
 795 }
 796
 797 static void dump_inline_symlink(FILE *out, ext2_ino_t inode_num,
 798                                 struct ext2_inode *inode, const char *prefix)
 799 {
 800         errcode_t retval;
 801         char *buf = NULL;
 802         size_t size;
 803
 804         retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
 805         if (retval)
 806                 goto out;
 807
 808         retval = ext2fs_get_memzero(size + 1, &buf);
 809         if (retval)
 810                 goto out;
 811
 812         retval = ext2fs_inline_data_get(current_fs, inode_num,
 813                                         inode, buf, &size);
 814         if (retval)
 815                 goto out;
 816
 817         fprintf(out, "%sFast link dest: \"%.*s\"\n", prefix,
 818                 (int)size, buf);
 819 out:
 820         if (buf)
 821                 ext2fs_free_mem(&buf);
 822         if (retval)
 823                 com_err(__func__, retval, "while dumping link destination");
 824 }
 825
 826 void internal_dump_inode(FILE *out, const char *prefix,
 827                          ext2_ino_t inode_num, struct ext2_inode *inode,
 828                          int do_dump_blocks)
 829 {
 830         const char *i_type;
 831         char frag, fsize;
 832         int os = current_fs->super->s_creator_os;
 833         struct ext2_inode_large *large_inode;
 834         int is_large_inode = 0;
 835
 836         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 837                 is_large_inode = 1;
 838         large_inode = (struct ext2_inode_large *) inode;
 839
 840         if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
 841         else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
 842         else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
 843         else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
 844         else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
 845         else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
 846         else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
 847         else i_type = "bad type";
 848         fprintf(out, "%sInode: %u   Type: %s    ", prefix, inode_num, i_type);
 849         fprintf(out, "%sMode:  0%03o   Flags: 0x%x\n",
 850                 prefix, inode->i_mode & 07777, inode->i_flags);
 851         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 852                 fprintf(out, "%sGeneration: %u    Version: 0x%08x:%08x\n",
 853                         prefix, inode->i_generation, large_inode->i_version_hi,
 854                         inode->osd1.linux1.l_i_version);
 855         } else {
 856                 fprintf(out, "%sGeneration: %u    Version: 0x%08x\n", prefix,
 857                         inode->i_generation, inode->osd1.linux1.l_i_version);
 858         }
 859         fprintf(out, "%sUser: %5d   Group: %5d",
 860                 prefix, inode_uid(*inode), inode_gid(*inode));
 861         if (is_large_inode && large_inode->i_extra_isize >= 32)
 862                 fprintf(out, "   Project: %5d", large_inode->i_projid);
 863         fputs("   Size: ", out);
 864         if (LINUX_S_ISREG(inode->i_mode) || LINUX_S_ISDIR(inode->i_mode))
 865                 fprintf(out, "%llu\n", (unsigned long long) EXT2_I_SIZE(inode));
 866         else
 867                 fprintf(out, "%u\n", inode->i_size);
 868         if (os == EXT2_OS_HURD)
 869                 fprintf(out,
 870                         "%sFile ACL: %u Translator: %u\n",
 871                         prefix,
 872                         inode->i_file_acl,
 873                         inode->osd1.hurd1.h_i_translator);
 874         else
 875                 fprintf(out, "%sFile ACL: %llu\n",
 876                         prefix,
 877                         inode->i_file_acl | ((long long)
 878                                 (inode->osd2.linux2.l_i_file_acl_high) << 32));
 879         if (os != EXT2_OS_HURD)
 880                 fprintf(out, "%sLinks: %u   Blockcount: %llu\n",
 881                         prefix, inode->i_links_count,
 882                         (((unsigned long long)
 883                           inode->osd2.linux2.l_i_blocks_hi << 32)) +
 884                         inode->i_blocks);
 885         else
 886                 fprintf(out, "%sLinks: %u   Blockcount: %u\n",
 887                         prefix, inode->i_links_count, inode->i_blocks);
 888         switch (os) {
 889             case EXT2_OS_HURD:
 890                 frag = inode->osd2.hurd2.h_i_frag;
 891                 fsize = inode->osd2.hurd2.h_i_fsize;
 892                 break;
 893             default:
 894                 frag = fsize = 0;
 895         }
 896         fprintf(out, "%sFragment:  Address: %u    Number: %u    Size: %u\n",
 897                 prefix, inode->i_faddr, frag, fsize);
 898         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 899                 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
 900                         inode->i_ctime, large_inode->i_ctime_extra,
 901                         inode_time_to_string(inode->i_ctime,
 902                                              large_inode->i_ctime_extra));
 903                 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
 904                         inode->i_atime, large_inode->i_atime_extra,
 905                         inode_time_to_string(inode->i_atime,
 906                                              large_inode->i_atime_extra));
 907                 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
 908                         inode->i_mtime, large_inode->i_mtime_extra,
 909                         inode_time_to_string(inode->i_mtime,
 910                                              large_inode->i_mtime_extra));
 911                 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
 912                         large_inode->i_crtime, large_inode->i_crtime_extra,
 913                         inode_time_to_string(large_inode->i_crtime,
 914                                              large_inode->i_crtime_extra));
 915                 if (inode->i_dtime)
 916                         fprintf(out, "%s dtime: 0x%08x:(%08x) -- %s", prefix,
 917                                 large_inode->i_dtime, large_inode->i_ctime_extra,
 918                                 inode_time_to_string(inode->i_dtime,
 919                                                      large_inode->i_ctime_extra));
 920         } else {
 921                 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
 922                         time_to_string((__s32) inode->i_ctime));
 923                 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
 924                         time_to_string((__s32) inode->i_atime));
 925                 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
 926                         time_to_string((__s32) inode->i_mtime));
 927                 if (inode->i_dtime)
 928                         fprintf(out, "%sdtime: 0x%08x -- %s", prefix,
 929                                 inode->i_dtime,
 930                                 time_to_string((__s32) inode->i_dtime));
 931         }
 932         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 933                 internal_dump_inode_extra(out, prefix, inode_num,
 934                                           (struct ext2_inode_large *) inode);
 935         dump_inode_attributes(out, inode_num);
 936         if (ext2fs_has_feature_metadata_csum(current_fs->super)) {
 937                 __u32 crc = inode->i_checksum_lo;
 938                 if (is_large_inode &&
 939                     large_inode->i_extra_isize >=
 940                                 (offsetof(struct ext2_inode_large,
 941                                           i_checksum_hi) -
 942                                  EXT2_GOOD_OLD_INODE_SIZE))
 943                         crc |= ((__u32)large_inode->i_checksum_hi) << 16;
 944                 fprintf(out, "Inode checksum: 0x%08x\n", crc);
 945         }
 946
 947         if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_is_fast_symlink(inode))
 948                 fprintf(out, "%sFast link dest: \"%.*s\"\n", prefix,
 949                         (int)EXT2_I_SIZE(inode), (char *)inode->i_block);
 950         else if (LINUX_S_ISLNK(inode->i_mode) &&
 951                    (inode->i_flags & EXT4_INLINE_DATA_FL))
 952                 dump_inline_symlink(out, inode_num, inode, prefix);
 953         else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
 954                 int major, minor;
 955                 const char *devnote;
 956
 957                 if (inode->i_block[0]) {
 958                         major = (inode->i_block[0] >> 8) & 255;
 959                         minor = inode->i_block[0] & 255;
 960                         devnote = "";
 961                 } else {
 962                         major = (inode->i_block[1] & 0xfff00) >> 8;
 963                         minor = ((inode->i_block[1] & 0xff) |
 964                                  ((inode->i_block[1] >> 12) & 0xfff00));
 965                         devnote = "(New-style) ";
 966                 }
 967                 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
 968                         devnote, major, minor, major, minor);
 969         } else if (do_dump_blocks) {
 970                 if (inode->i_flags & EXT4_EXTENTS_FL)
 971                         dump_extents(out, prefix, inode_num,
 972                                      DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0);
 973                 else if (inode->i_flags & EXT4_INLINE_DATA_FL)
 974                         dump_inline_data(out, prefix, inode_num);
 975                 else
 976                         dump_blocks(out, prefix, inode_num);
 977         }
 978 }
 979
 980 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
 981 {
 982         FILE    *out;
 983
 984         out = open_pager();
 985         internal_dump_inode(out, "", inode_num, inode, 1);
 986         close_pager(out);
 987 }
 988
 989 void do_stat(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
 990              void *infop EXT2FS_ATTR((unused)))
 991 {
 992         ext2_ino_t      inode;
 993         struct ext2_inode * inode_buf;
 994
 995         if (check_fs_open(argv[0]))
 996                 return;
 997
 998         inode_buf = (struct ext2_inode *)
 999                         malloc(EXT2_INODE_SIZE(current_fs->super));
1000         if (!inode_buf) {
1001                 fprintf(stderr, "do_stat: can't allocate buffer\n");
1002                 return;
1003         }
1004
1005         if (common_inode_args_process(argc, argv, &inode, 0)) {
1006                 free(inode_buf);
1007                 return;
1008         }
1009
1010         if (debugfs_read_inode2(inode, inode_buf, argv[0],
1011                                 EXT2_INODE_SIZE(current_fs->super), 0)) {
1012                 free(inode_buf);
1013                 return;
1014         }
1015
1016         dump_inode(inode, inode_buf);
1017         free(inode_buf);
1018         return;
1019 }
1020
1021 void do_dump_extents(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
1022                      void *infop EXT2FS_ATTR((unused)))
1023 {
1024         struct ext2_inode inode;
1025         ext2_ino_t      ino;
1026         FILE            *out;
1027         int             c, flags = 0;
1028         int             logical_width;
1029         int             physical_width;
1030
1031         reset_getopt();
1032         while ((c = getopt(argc, argv, "nl")) != EOF) {
1033                 switch (c) {
1034                 case 'n':
1035                         flags |= DUMP_NODE_EXTENTS;
1036                         break;
1037                 case 'l':
1038                         flags |= DUMP_LEAF_EXTENTS;
1039                         break;
1040                 }
1041         }
1042
1043         if (argc != optind + 1) {
1044                 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
1045                 return;
1046         }
1047
1048         if (flags == 0)
1049                 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
1050         flags |= DUMP_EXTENT_TABLE;
1051
1052         if (check_fs_open(argv[0]))
1053                 return;
1054
1055         ino = string_to_inode(argv[optind]);
1056         if (ino == 0)
1057                 return;
1058
1059         if (debugfs_read_inode(ino, &inode, argv[0]))
1060                 return;
1061
1062         if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
1063                 fprintf(stderr, "%s: does not uses extent block maps\n",
1064                         argv[optind]);
1065                 return;
1066         }
1067
1068         logical_width = int_log10((EXT2_I_SIZE(&inode)+current_fs->blocksize-1)/
1069                                   current_fs->blocksize) + 1;
1070         if (logical_width < 5)
1071                 logical_width = 5;
1072         physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1;
1073         if (physical_width < 5)
1074                 physical_width = 5;
1075
1076         out = open_pager();
1077         dump_extents(out, "", ino, flags, logical_width, physical_width);
1078         close_pager(out);
1079         return;
1080 }
1081
1082 static int print_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
1083                              blk64_t *blocknr,
1084                              e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1085                              blk64_t ref_block EXT2FS_ATTR((unused)),
1086                              int ref_offset EXT2FS_ATTR((unused)),
1087                              void *private EXT2FS_ATTR((unused)))
1088 {
1089         printf("%llu ", (unsigned long long) *blocknr);
1090         return 0;
1091 }
1092
1093 void do_blocks(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1094                void *infop EXT2FS_ATTR((unused)))
1095 {
1096         ext2_ino_t      inode;
1097
1098         if (check_fs_open(argv[0]))
1099                 return;
1100
1101         if (common_inode_args_process(argc, argv, &inode, 0)) {
1102                 return;
1103         }
1104
1105         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
1106                               print_blocks_proc, NULL);
1107         fputc('\n', stdout);
1108         return;
1109 }
1110
1111 void do_chroot(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1112                void *infop EXT2FS_ATTR((unused)))
1113 {
1114         ext2_ino_t inode;
1115         int retval;
1116
1117         if (common_inode_args_process(argc, argv, &inode, 0))
1118                 return;
1119
1120         retval = ext2fs_check_directory(current_fs, inode);
1121         if (retval)  {
1122                 com_err(argv[1], retval, 0);
1123                 return;
1124         }
1125         root = inode;
1126 }
1127
1128 #ifndef READ_ONLY
1129 void do_clri(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1130              void *infop EXT2FS_ATTR((unused)))
1131 {
1132         ext2_ino_t inode;
1133         struct ext2_inode inode_buf;
1134
1135         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1136                 return;
1137
1138         if (debugfs_read_inode(inode, &inode_buf, argv[0]))
1139                 return;
1140         memset(&inode_buf, 0, sizeof(inode_buf));
1141         if (debugfs_write_inode(inode, &inode_buf, argv[0]))
1142                 return;
1143 }
1144
1145 void do_freei(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1146               void *infop EXT2FS_ATTR((unused)))
1147 {
1148         unsigned int    len = 1;
1149         int             err = 0;
1150         ext2_ino_t      inode;
1151
1152         if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1153                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1154                 return;
1155         if (check_fs_read_write(argv[0]))
1156                 return;
1157
1158         inode = string_to_inode(argv[1]);
1159         if (!inode)
1160                 return;
1161
1162         if (argc == 3) {
1163                 len = parse_ulong(argv[2], argv[0], "length", &err);
1164                 if (err)
1165                         return;
1166         }
1167
1168         if (len == 1 &&
1169             !ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1170                 com_err(argv[0], 0, "Warning: inode already clear");
1171         while (len-- > 0)
1172                 ext2fs_unmark_inode_bitmap2(current_fs->inode_map, inode++);
1173         ext2fs_mark_ib_dirty(current_fs);
1174 }
1175
1176 void do_seti(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1177              void *infop EXT2FS_ATTR((unused)))
1178 {
1179         unsigned int    len = 1;
1180         int             err = 0;
1181         ext2_ino_t      inode;
1182
1183         if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1184                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1185                 return;
1186         if (check_fs_read_write(argv[0]))
1187                 return;
1188
1189         inode = string_to_inode(argv[1]);
1190         if (!inode)
1191                 return;
1192
1193         if (argc == 3) {
1194                 len = parse_ulong(argv[2], argv[0], "length", &err);
1195                 if (err)
1196                         return;
1197         }
1198
1199         if ((len == 1) &&
1200             ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1201                 com_err(argv[0], 0, "Warning: inode already set");
1202         while (len-- > 0)
1203                 ext2fs_mark_inode_bitmap2(current_fs->inode_map, inode++);
1204         ext2fs_mark_ib_dirty(current_fs);
1205 }
1206 #endif /* READ_ONLY */
1207
1208 void do_testi(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1209               void *infop EXT2FS_ATTR((unused)))
1210 {
1211         ext2_ino_t inode;
1212
1213         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
1214                 return;
1215
1216         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1217                 printf("Inode %u is marked in use\n", inode);
1218         else
1219                 printf("Inode %u is not in use\n", inode);
1220 }
1221
1222 #ifndef READ_ONLY
1223 void do_freeb(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1224               void *infop EXT2FS_ATTR((unused)))
1225 {
1226         blk64_t block;
1227         blk64_t count = 1;
1228
1229         if (common_block_args_process(argc, argv, &block, &count))
1230                 return;
1231         if (check_fs_read_write(argv[0]))
1232                 return;
1233         while (count-- > 0) {
1234                 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
1235                         com_err(argv[0], 0, "Warning: block %llu already clear",
1236                                 (unsigned long long) block);
1237                 ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
1238                 block++;
1239         }
1240         ext2fs_mark_bb_dirty(current_fs);
1241 }
1242
1243 void do_setb(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1244              void *infop EXT2FS_ATTR((unused)))
1245 {
1246         blk64_t block;
1247         blk64_t count = 1;
1248
1249         if (common_block_args_process(argc, argv, &block, &count))
1250                 return;
1251         if (check_fs_read_write(argv[0]))
1252                 return;
1253         while (count-- > 0) {
1254                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1255                         com_err(argv[0], 0, "Warning: block %llu already set",
1256                                 (unsigned long long) block);
1257                 ext2fs_mark_block_bitmap2(current_fs->block_map,block);
1258                 block++;
1259         }
1260         ext2fs_mark_bb_dirty(current_fs);
1261 }
1262 #endif /* READ_ONLY */
1263
1264 void do_testb(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1265               void *infop EXT2FS_ATTR((unused)))
1266 {
1267         blk64_t block;
1268         blk64_t count = 1;
1269
1270         if (common_block_args_process(argc, argv, &block, &count))
1271                 return;
1272         while (count-- > 0) {
1273                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1274                         printf("Block %llu marked in use\n",
1275                                (unsigned long long) block);
1276                 else
1277                         printf("Block %llu not in use\n",
1278                                (unsigned long long) block);
1279                 block++;
1280         }
1281 }
1282
1283 #ifndef READ_ONLY
1284 static void modify_u8(char *com, const char *prompt,
1285                       const char *format, __u8 *val)
1286 {
1287         char buf[200];
1288         unsigned long v;
1289         char *tmp;
1290
1291         sprintf(buf, format, *val);
1292         printf("%30s    [%s] ", prompt, buf);
1293         if (!fgets(buf, sizeof(buf), stdin))
1294                 return;
1295         if (buf[strlen (buf) - 1] == '\n')
1296                 buf[strlen (buf) - 1] = '\0';
1297         if (!buf[0])
1298                 return;
1299         v = strtoul(buf, &tmp, 0);
1300         if (*tmp)
1301                 com_err(com, 0, "Bad value - %s", buf);
1302         else
1303                 *val = v;
1304 }
1305
1306 static void modify_u16(char *com, const char *prompt,
1307                        const char *format, __u16 *val)
1308 {
1309         char buf[200];
1310         unsigned long v;
1311         char *tmp;
1312
1313         sprintf(buf, format, *val);
1314         printf("%30s    [%s] ", prompt, buf);
1315         if (!fgets(buf, sizeof(buf), stdin))
1316                 return;
1317         if (buf[strlen (buf) - 1] == '\n')
1318                 buf[strlen (buf) - 1] = '\0';
1319         if (!buf[0])
1320                 return;
1321         v = strtoul(buf, &tmp, 0);
1322         if (*tmp)
1323                 com_err(com, 0, "Bad value - %s", buf);
1324         else
1325                 *val = v;
1326 }
1327
1328 static void modify_u32(char *com, const char *prompt,
1329                        const char *format, __u32 *val)
1330 {
1331         char buf[200];
1332         unsigned long v;
1333         char *tmp;
1334
1335         sprintf(buf, format, *val);
1336         printf("%30s    [%s] ", prompt, buf);
1337         if (!fgets(buf, sizeof(buf), stdin))
1338                 return;
1339         if (buf[strlen (buf) - 1] == '\n')
1340                 buf[strlen (buf) - 1] = '\0';
1341         if (!buf[0])
1342                 return;
1343         v = strtoul(buf, &tmp, 0);
1344         if (*tmp)
1345                 com_err(com, 0, "Bad value - %s", buf);
1346         else
1347                 *val = v;
1348 }
1349
1350
1351 void do_modify_inode(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1352                      void *infop EXT2FS_ATTR((unused)))
1353 {
1354         struct ext2_inode inode;
1355         ext2_ino_t      inode_num;
1356         int             i;
1357         unsigned char   *frag, *fsize;
1358         char            buf[80];
1359         int             os;
1360         const char      *hex_format = "0x%x";
1361         const char      *octal_format = "0%o";
1362         const char      *decimal_format = "%d";
1363         const char      *unsignedlong_format = "%lu";
1364
1365         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1366                 return;
1367
1368         os = current_fs->super->s_creator_os;
1369
1370         if (debugfs_read_inode(inode_num, &inode, argv[1]))
1371                 return;
1372
1373         modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1374         modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1375         modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1376         modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1377         modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1378         modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1379         modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1380         modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1381         modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1382         if (os == EXT2_OS_LINUX)
1383                 modify_u16(argv[0], "Block count high", unsignedlong_format,
1384                            &inode.osd2.linux2.l_i_blocks_hi);
1385         modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1386         modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1387         modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1388 #if 0
1389         modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1390 #endif
1391         modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1392
1393         modify_u32(argv[0], "High 32bits of size", decimal_format,
1394                    &inode.i_size_high);
1395
1396         if (os == EXT2_OS_HURD)
1397                 modify_u32(argv[0], "Translator Block",
1398                             decimal_format, &inode.osd1.hurd1.h_i_translator);
1399
1400         modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1401         switch (os) {
1402             case EXT2_OS_HURD:
1403                 frag = &inode.osd2.hurd2.h_i_frag;
1404                 fsize = &inode.osd2.hurd2.h_i_fsize;
1405                 break;
1406             default:
1407                 frag = fsize = 0;
1408         }
1409         if (frag)
1410                 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1411         if (fsize)
1412                 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1413
1414         for (i=0;  i < EXT2_NDIR_BLOCKS; i++) {
1415                 sprintf(buf, "Direct Block #%u", i);
1416                 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1417         }
1418         modify_u32(argv[0], "Indirect Block", decimal_format,
1419                     &inode.i_block[EXT2_IND_BLOCK]);
1420         modify_u32(argv[0], "Double Indirect Block", decimal_format,
1421                     &inode.i_block[EXT2_DIND_BLOCK]);
1422         modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1423                     &inode.i_block[EXT2_TIND_BLOCK]);
1424         if (debugfs_write_inode(inode_num, &inode, argv[1]))
1425                 return;
1426 }
1427 #endif /* READ_ONLY */
1428
1429 void do_change_working_dir(int argc, char *argv[],
1430                            int sci_idx EXT2FS_ATTR((unused)),
1431                            void *infop EXT2FS_ATTR((unused)))
1432 {
1433         ext2_ino_t      inode;
1434         int             retval;
1435
1436         if (common_inode_args_process(argc, argv, &inode, 0))
1437                 return;
1438
1439         retval = ext2fs_check_directory(current_fs, inode);
1440         if (retval) {
1441                 com_err(argv[1], retval, 0);
1442                 return;
1443         }
1444         cwd = inode;
1445         return;
1446 }
1447
1448 void do_print_working_directory(int argc, char *argv[],
1449                                 int sci_idx EXT2FS_ATTR((unused)),
1450                                 void *infop EXT2FS_ATTR((unused)))
1451 {
1452         int     retval;
1453         char    *pathname = NULL;
1454
1455         if (common_args_process(argc, argv, 1, 1,
1456                                 "print_working_directory", "", 0))
1457                 return;
1458
1459         retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1460         if (retval) {
1461                 com_err(argv[0], retval,
1462                         "while trying to get pathname of cwd");
1463         }
1464         printf("[pwd]   INODE: %6u  PATH: %s\n",
1465                cwd, pathname ? pathname : "NULL");
1466         if (pathname) {
1467                 free(pathname);
1468                 pathname = NULL;
1469         }
1470         retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1471         if (retval) {
1472                 com_err(argv[0], retval,
1473                         "while trying to get pathname of root");
1474         }
1475         printf("[root]  INODE: %6u  PATH: %s\n",
1476                root, pathname ? pathname : "NULL");
1477         if (pathname) {
1478                 free(pathname);
1479                 pathname = NULL;
1480         }
1481         return;
1482 }
1483
1484 #ifndef READ_ONLY
1485 static void make_link(char *sourcename, char *destname)
1486 {
1487         ext2_ino_t      ino;
1488         struct ext2_inode inode;
1489         int             retval;
1490         ext2_ino_t      dir;
1491         char            *dest, *cp, *base_name;
1492
1493         /*
1494          * Get the source inode
1495          */
1496         ino = string_to_inode(sourcename);
1497         if (!ino)
1498                 return;
1499         base_name = strrchr(sourcename, '/');
1500         if (base_name)
1501                 base_name++;
1502         else
1503                 base_name = sourcename;
1504         /*
1505          * Figure out the destination.  First see if it exists and is
1506          * a directory.
1507          */
1508         if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1509                 dest = base_name;
1510         else {
1511                 /*
1512                  * OK, it doesn't exist.  See if it is
1513                  * '<dir>/basename' or 'basename'
1514                  */
1515                 cp = strrchr(destname, '/');
1516                 if (cp) {
1517                         *cp = 0;
1518                         dir = string_to_inode(destname);
1519                         if (!dir)
1520                                 return;
1521                         dest = cp+1;
1522                 } else {
1523                         dir = cwd;
1524                         dest = destname;
1525                 }
1526         }
1527
1528         if (debugfs_read_inode(ino, &inode, sourcename))
1529                 return;
1530
1531         retval = ext2fs_link(current_fs, dir, dest, ino,
1532                              ext2_file_type(inode.i_mode));
1533         if (retval)
1534                 com_err("make_link", retval, 0);
1535         return;
1536 }
1537
1538
1539 void do_link(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1540              void *infop EXT2FS_ATTR((unused)))
1541 {
1542         if (common_args_process(argc, argv, 3, 3, "link",
1543                                 "<source file> <dest_name>", CHECK_FS_RW))
1544                 return;
1545
1546         make_link(argv[1], argv[2]);
1547 }
1548
1549 static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1550                             e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1551                             blk64_t ref_block EXT2FS_ATTR((unused)),
1552                             int ref_offset EXT2FS_ATTR((unused)),
1553                             void *private EXT2FS_ATTR((unused)))
1554 {
1555         blk64_t block;
1556
1557         block = *blocknr;
1558         ext2fs_block_alloc_stats2(fs, block, +1);
1559         return 0;
1560 }
1561
1562 void do_undel(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1563               void *infop EXT2FS_ATTR((unused)))
1564 {
1565         ext2_ino_t      ino;
1566         struct ext2_inode inode;
1567
1568         if (common_args_process(argc, argv, 2, 3, "undelete",
1569                                 "<inode_num> [dest_name]",
1570                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1571                 return;
1572
1573         ino = string_to_inode(argv[1]);
1574         if (!ino)
1575                 return;
1576
1577         if (debugfs_read_inode(ino, &inode, argv[1]))
1578                 return;
1579
1580         if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
1581                 com_err(argv[1], 0, "Inode is not marked as deleted");
1582                 return;
1583         }
1584
1585         /*
1586          * XXX this function doesn't handle changing the links count on the
1587          * parent directory when undeleting a directory.
1588          */
1589         inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1590         inode.i_dtime = 0;
1591
1592         if (debugfs_write_inode(ino, &inode, argv[0]))
1593                 return;
1594
1595         ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1596                               mark_blocks_proc, NULL);
1597
1598         ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1599
1600         if (argc > 2)
1601                 make_link(argv[1], argv[2]);
1602 }
1603
1604 static void unlink_file_by_name(char *filename)
1605 {
1606         int             retval;
1607         ext2_ino_t      dir;
1608         char            *base_name;
1609
1610         base_name = strrchr(filename, '/');
1611         if (base_name) {
1612                 *base_name++ = '\0';
1613                 dir = string_to_inode(filename);
1614                 if (!dir)
1615                         return;
1616         } else {
1617                 dir = cwd;
1618                 base_name = filename;
1619         }
1620         retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1621         if (retval)
1622                 com_err("unlink_file_by_name", retval, 0);
1623         return;
1624 }
1625
1626 void do_unlink(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1627                void *infop EXT2FS_ATTR((unused)))
1628 {
1629         if (common_args_process(argc, argv, 2, 2, "link",
1630                                 "<pathname>", CHECK_FS_RW))
1631                 return;
1632
1633         unlink_file_by_name(argv[1]);
1634 }
1635
1636 void do_copy_inode(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1637                    void *infop EXT2FS_ATTR((unused)))
1638 {
1639         ext2_ino_t      src_ino, dest_ino;
1640         unsigned char   buf[4096];
1641
1642         if (common_args_process(argc, argv, 3, 3, "copy_inode",
1643                                 "<source file> <dest_name>", CHECK_FS_RW))
1644                 return;
1645
1646         src_ino = string_to_inode(argv[1]);
1647         if (!src_ino)
1648                 return;
1649
1650         dest_ino = string_to_inode(argv[2]);
1651         if (!dest_ino)
1652                 return;
1653
1654         if (debugfs_read_inode2(src_ino, (struct ext2_inode *) buf,
1655                                 argv[0], sizeof(buf), 0))
1656                 return;
1657
1658         if (debugfs_write_inode2(dest_ino, (struct ext2_inode *) buf,
1659                                  argv[0], sizeof(buf), 0))
1660                 return;
1661 }
1662
1663 #endif /* READ_ONLY */
1664
1665 void do_find_free_block(int argc, char *argv[],
1666                         int sci_idx EXT2FS_ATTR((unused)),
1667                         void *infop EXT2FS_ATTR((unused)))
1668 {
1669         blk64_t free_blk, goal, first_free = 0;
1670         int             count;
1671         errcode_t       retval;
1672         char            *tmp;
1673
1674         if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1675                 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1676                 return;
1677         }
1678         if (check_fs_open(argv[0]))
1679                 return;
1680
1681         if (argc > 1) {
1682                 count = strtol(argv[1],&tmp,0);
1683                 if (*tmp) {
1684                         com_err(argv[0], 0, "Bad count - %s", argv[1]);
1685                         return;
1686                 }
1687         } else
1688                 count = 1;
1689
1690         if (argc > 2) {
1691                 goal = strtol(argv[2], &tmp, 0);
1692                 if (*tmp) {
1693                         com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1694                         return;
1695                 }
1696         }
1697         else
1698                 goal = current_fs->super->s_first_data_block;
1699
1700         printf("Free blocks found: ");
1701         free_blk = goal - 1;
1702         while (count-- > 0) {
1703                 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
1704                                            &free_blk);
1705                 if (first_free) {
1706                         if (first_free == free_blk)
1707                                 break;
1708                 } else
1709                         first_free = free_blk;
1710                 if (retval) {
1711                         com_err("ext2fs_new_block", retval, 0);
1712                         return;
1713                 } else
1714                         printf("%llu ", (unsigned long long) free_blk);
1715         }
1716         printf("\n");
1717 }
1718
1719 void do_find_free_inode(int argc, char *argv[],
1720                         int sci_idx EXT2FS_ATTR((unused)),
1721                         void *infop EXT2FS_ATTR((unused)))
1722 {
1723         ext2_ino_t      free_inode, dir;
1724         int             mode;
1725         int             retval;
1726         char            *tmp;
1727
1728         if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1729                 com_err(argv[0], 0, "Usage: find_free_inode [dir [mode]]");
1730                 return;
1731         }
1732         if (check_fs_open(argv[0]))
1733                 return;
1734
1735         if (argc > 1) {
1736                 dir = strtol(argv[1], &tmp, 0);
1737                 if (*tmp) {
1738                         com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1739                         return;
1740                 }
1741         }
1742         else
1743                 dir = root;
1744         if (argc > 2) {
1745                 mode = strtol(argv[2], &tmp, 0);
1746                 if (*tmp) {
1747                         com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1748                         return;
1749                 }
1750         } else
1751                 mode = 010755;
1752
1753         retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1754         if (retval)
1755                 com_err("ext2fs_new_inode", retval, 0);
1756         else
1757                 printf("Free inode found: %u\n", free_inode);
1758 }
1759
1760 #ifndef READ_ONLY
1761 void do_write(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1762               void *infop EXT2FS_ATTR((unused)))
1763 {
1764         errcode_t       retval;
1765
1766         if (common_args_process(argc, argv, 3, 3, "write",
1767                                 "<native file> <new file>", CHECK_FS_RW))
1768                 return;
1769
1770         retval = do_write_internal(current_fs, cwd, argv[1], argv[2], root);
1771         if (retval)
1772                 com_err(argv[0], retval, 0);
1773 }
1774
1775 void do_mknod(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1776               void *infop EXT2FS_ATTR((unused)))
1777 {
1778         unsigned long   major, minor;
1779         errcode_t       retval;
1780         int             nr;
1781         struct stat     st;
1782
1783         if (check_fs_open(argv[0]))
1784                 return;
1785         if (argc < 3 || argv[2][1]) {
1786         usage:
1787                 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1788                 return;
1789         }
1790
1791         minor = major = 0;
1792         switch (argv[2][0]) {
1793                 case 'p':
1794                         st.st_mode = S_IFIFO;
1795                         nr = 3;
1796                         break;
1797                 case 'c':
1798                         st.st_mode = S_IFCHR;
1799                         nr = 5;
1800                         break;
1801                 case 'b':
1802                         st.st_mode = S_IFBLK;
1803                         nr = 5;
1804                         break;
1805                 default:
1806                         nr = 0;
1807         }
1808
1809         if (nr == 5) {
1810                 major = strtoul(argv[3], argv+3, 0);
1811                 minor = strtoul(argv[4], argv+4, 0);
1812                 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1813                         nr = 0;
1814         }
1815
1816         if (argc != nr)
1817                 goto usage;
1818
1819         st.st_rdev = makedev(major, minor);
1820         retval = do_mknod_internal(current_fs, cwd, argv[1],
1821                                    st.st_mode, st.st_rdev);
1822         if (retval)
1823                 com_err(argv[0], retval, 0);
1824 }
1825
1826 void do_mkdir(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1827               void *infop EXT2FS_ATTR((unused)))
1828 {
1829         errcode_t retval;
1830
1831         if (common_args_process(argc, argv, 2, 2, "mkdir",
1832                                 "<filename>", CHECK_FS_RW))
1833                 return;
1834
1835         retval = do_mkdir_internal(current_fs, cwd, argv[1], root);
1836         if (retval)
1837                 com_err(argv[0], retval, 0);
1838
1839 }
1840
1841 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1842                                e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1843                                blk64_t ref_block EXT2FS_ATTR((unused)),
1844                                int ref_offset EXT2FS_ATTR((unused)),
1845                                void *private)
1846 {
1847         blk64_t block = *blocknr;
1848         blk64_t *last_cluster = (blk64_t *)private;
1849         blk64_t cluster = EXT2FS_B2C(fs, block);
1850
1851         if (cluster == *last_cluster)
1852                 return 0;
1853
1854         *last_cluster = cluster;
1855
1856         ext2fs_block_alloc_stats2(fs, block, -1);
1857         return 0;
1858 }
1859
1860 static void kill_file_by_inode(ext2_ino_t inode)
1861 {
1862         struct ext2_inode inode_buf;
1863
1864         if (debugfs_read_inode(inode, &inode_buf, 0))
1865                 return;
1866         inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1867         if (debugfs_write_inode(inode, &inode_buf, 0))
1868                 return;
1869         if (ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf)) {
1870                 blk64_t last_cluster = 0;
1871                 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY,
1872                                       NULL, release_blocks_proc, &last_cluster);
1873         }
1874         printf("\n");
1875         ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1876                                   LINUX_S_ISDIR(inode_buf.i_mode));
1877 }
1878
1879
1880 void do_kill_file(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1881                   void *infop EXT2FS_ATTR((unused)))
1882 {
1883         ext2_ino_t inode_num;
1884
1885         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1886                 return;
1887
1888         kill_file_by_inode(inode_num);
1889 }
1890
1891 void do_rm(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1892            void *infop EXT2FS_ATTR((unused)))
1893 {
1894         int retval;
1895         ext2_ino_t inode_num;
1896         struct ext2_inode inode;
1897
1898         if (common_args_process(argc, argv, 2, 2, "rm",
1899                                 "<filename>", CHECK_FS_RW))
1900                 return;
1901
1902         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1903         if (retval) {
1904                 com_err(argv[0], retval, "while trying to resolve filename");
1905                 return;
1906         }
1907
1908         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1909                 return;
1910
1911         if (LINUX_S_ISDIR(inode.i_mode)) {
1912                 com_err(argv[0], 0, "file is a directory");
1913                 return;
1914         }
1915
1916         --inode.i_links_count;
1917         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1918                 return;
1919
1920         unlink_file_by_name(argv[1]);
1921         if (inode.i_links_count == 0)
1922                 kill_file_by_inode(inode_num);
1923 }
1924
1925 struct rd_struct {
1926         ext2_ino_t      parent;
1927         int             empty;
1928 };
1929
1930 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1931                       int       entry EXT2FS_ATTR((unused)),
1932                       struct ext2_dir_entry *dirent,
1933                       int       offset EXT2FS_ATTR((unused)),
1934                       int       blocksize EXT2FS_ATTR((unused)),
1935                       char      *buf EXT2FS_ATTR((unused)),
1936                       void      *private)
1937 {
1938         struct rd_struct *rds = (struct rd_struct *) private;
1939
1940         if (dirent->inode == 0)
1941                 return 0;
1942         if ((ext2fs_dirent_name_len(dirent) == 1) && (dirent->name[0] == '.'))
1943                 return 0;
1944         if ((ext2fs_dirent_name_len(dirent) == 2) && (dirent->name[0] == '.') &&
1945             (dirent->name[1] == '.')) {
1946                 rds->parent = dirent->inode;
1947                 return 0;
1948         }
1949         rds->empty = 0;
1950         return 0;
1951 }
1952
1953 void do_rmdir(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1954               void *infop EXT2FS_ATTR((unused)))
1955 {
1956         int retval;
1957         ext2_ino_t inode_num;
1958         struct ext2_inode inode;
1959         struct rd_struct rds;
1960
1961         if (common_args_process(argc, argv, 2, 2, "rmdir",
1962                                 "<filename>", CHECK_FS_RW))
1963                 return;
1964
1965         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1966         if (retval) {
1967                 com_err(argv[0], retval, "while trying to resolve filename");
1968                 return;
1969         }
1970
1971         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1972                 return;
1973
1974         if (!LINUX_S_ISDIR(inode.i_mode)) {
1975                 com_err(argv[0], 0, "file is not a directory");
1976                 return;
1977         }
1978
1979         rds.parent = 0;
1980         rds.empty = 1;
1981
1982         retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1983                                     0, rmdir_proc, &rds);
1984         if (retval) {
1985                 com_err(argv[0], retval, "while iterating over directory");
1986                 return;
1987         }
1988         if (rds.empty == 0) {
1989                 com_err(argv[0], 0, "directory not empty");
1990                 return;
1991         }
1992
1993         inode.i_links_count = 0;
1994         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1995                 return;
1996
1997         unlink_file_by_name(argv[1]);
1998         kill_file_by_inode(inode_num);
1999
2000         if (rds.parent) {
2001                 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
2002                         return;
2003                 if (inode.i_links_count > 1)
2004                         inode.i_links_count--;
2005                 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
2006                         return;
2007         }
2008 }
2009 #endif /* READ_ONLY */
2010
2011 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
2012                             char *argv[] EXT2FS_ATTR((unused)),
2013                             int sci_idx EXT2FS_ATTR((unused)),
2014                             void *infop EXT2FS_ATTR((unused)))
2015 {
2016         if (current_fs)
2017                 printf("Open mode: read-%s\n",
2018                        current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
2019         printf("Filesystem in use: %s\n",
2020                current_fs ? current_fs->device_name : "--none--");
2021 }
2022
2023 #ifndef READ_ONLY
2024 void do_expand_dir(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2025                     void *infop EXT2FS_ATTR((unused)))
2026 {
2027         ext2_ino_t inode;
2028         int retval;
2029
2030         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
2031                 return;
2032
2033         retval = ext2fs_expand_dir(current_fs, inode);
2034         if (retval)
2035                 com_err("ext2fs_expand_dir", retval, 0);
2036         return;
2037 }
2038
2039 void do_features(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2040                  void *infop EXT2FS_ATTR((unused)))
2041 {
2042         int     i;
2043
2044         if (check_fs_open(argv[0]))
2045                 return;
2046
2047         if ((argc != 1) && check_fs_read_write(argv[0]))
2048                 return;
2049         for (i=1; i < argc; i++) {
2050                 if (e2p_edit_feature(argv[i],
2051                                      &current_fs->super->s_feature_compat, 0))
2052                         com_err(argv[0], 0, "Unknown feature: %s\n",
2053                                 argv[i]);
2054                 else
2055                         ext2fs_mark_super_dirty(current_fs);
2056         }
2057         print_features(current_fs->super, stdout);
2058 }
2059 #endif /* READ_ONLY */
2060
2061 void do_bmap(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2062              void *infop EXT2FS_ATTR((unused)))
2063 {
2064         ext2_ino_t      ino;
2065         blk64_t         blk, pblk = 0;
2066         int             c, err, flags = 0, ret_flags = 0;
2067         errcode_t       errcode;
2068
2069         if (check_fs_open(argv[0]))
2070                 return;
2071
2072         reset_getopt();
2073         while ((c = getopt (argc, argv, "a")) != EOF) {
2074                 switch (c) {
2075                 case 'a':
2076                         flags |= BMAP_ALLOC;
2077                         break;
2078                 default:
2079                         goto print_usage;
2080                 }
2081         }
2082
2083         if (argc <= optind+1) {
2084         print_usage:
2085                 com_err(0, 0,
2086                         "Usage: bmap [-a] <file> logical_blk [physical_blk]");
2087                 return;
2088         }
2089
2090         ino = string_to_inode(argv[optind++]);
2091         if (!ino)
2092                 return;
2093         err = strtoblk(argv[0], argv[optind++], "logical block", &blk);
2094         if (err)
2095                 return;
2096
2097         if (argc > optind+1)
2098                 goto print_usage;
2099
2100         if (argc == optind+1) {
2101                 err = strtoblk(argv[0], argv[optind++],
2102                                "physical block", &pblk);
2103                 if (err)
2104                         return;
2105                 if (flags & BMAP_ALLOC) {
2106                         com_err(0, 0, "Can't set and allocate a block");
2107                         return;
2108                 }
2109                 flags |= BMAP_SET;
2110         }
2111
2112         errcode = ext2fs_bmap2(current_fs, ino, 0, 0, flags, blk,
2113                                &ret_flags, &pblk);
2114         if (errcode) {
2115                 com_err(argv[0], errcode,
2116                         "while mapping logical block %llu\n",
2117                         (unsigned long long) blk);
2118                 return;
2119         }
2120         printf("%llu", (unsigned long long) pblk);
2121         if (ret_flags & BMAP_RET_UNINIT)
2122                 fputs(" (uninit)", stdout);
2123         fputc('\n', stdout);
2124 }
2125
2126 void do_imap(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2127              void *infop EXT2FS_ATTR((unused)))
2128 {
2129         ext2_ino_t      ino;
2130         unsigned long   group, block, block_nr, offset;
2131
2132         if (common_args_process(argc, argv, 2, 2, argv[0],
2133                                 "<file>", 0))
2134                 return;
2135         ino = string_to_inode(argv[1]);
2136         if (!ino)
2137                 return;
2138
2139         group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
2140         offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
2141                 EXT2_INODE_SIZE(current_fs->super);
2142         block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
2143         if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
2144                 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
2145                         group);
2146                 return;
2147         }
2148         block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
2149                 block;
2150         offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
2151
2152         printf("Inode %u is part of block group %lu\n"
2153                "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
2154                block_nr, offset);
2155
2156 }
2157
2158 void do_idump(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2159               void *infop EXT2FS_ATTR((unused)))
2160 {
2161         struct ext2_inode_large *inode;
2162         ext2_ino_t      ino;
2163         unsigned char   *buf;
2164         errcode_t       err;
2165         unsigned int    isize, size, offset = 0;
2166         int             c, mode = 0;
2167
2168         reset_getopt();
2169         while ((c = getopt (argc, argv, "bex")) != EOF) {
2170                 if (mode || c == '?') {
2171                         com_err(argv[0], 0,
2172                                 "Usage: inode_dump [-b]|[-e] <file>");
2173                         return;
2174                 }
2175                 mode = c;
2176         }
2177         if (optind != argc-1)
2178                 return;
2179
2180         if (check_fs_open(argv[0]))
2181                 return;
2182
2183         ino = string_to_inode(argv[optind]);
2184         if (!ino)
2185                 return;
2186
2187         isize = EXT2_INODE_SIZE(current_fs->super);
2188         err = ext2fs_get_mem(isize, &buf);
2189         if (err) {
2190                 com_err(argv[0], err, "while allocating memory");
2191                 return;
2192         }
2193
2194         err = ext2fs_read_inode_full(current_fs, ino,
2195                                      (struct ext2_inode *)buf, isize);
2196         if (err) {
2197                 com_err(argv[0], err, "while reading inode %u", ino);
2198                 goto err;
2199         }
2200
2201         inode = (struct ext2_inode_large *) buf;
2202         size = isize;
2203         switch (mode) {
2204         case 'b':
2205                 offset = ((char *) (&inode->i_block)) - ((char *) buf);
2206                 size = sizeof(inode->i_block);
2207                 break;
2208         case 'x':
2209         case 'e':
2210                 if (size <= EXT2_GOOD_OLD_INODE_SIZE) {
2211                         com_err(argv[0], 0, "No extra space in inode");
2212                         goto err;
2213                 }
2214                 offset = EXT2_GOOD_OLD_INODE_SIZE + inode->i_extra_isize;
2215                 if (offset > size)
2216                         goto err;
2217                 size -= offset;
2218                 break;
2219         }
2220         if (mode == 'x')
2221                 raw_inode_xattr_dump(stdout, buf + offset, size);
2222         else
2223                 do_byte_hexdump(stdout, buf + offset, size);
2224 err:
2225         ext2fs_free_mem(&buf);
2226 }
2227
2228 #ifndef READ_ONLY
2229 void do_set_current_time(int argc, char *argv[],
2230                          int sci_idx EXT2FS_ATTR((unused)),
2231                          void *infop EXT2FS_ATTR((unused)))
2232 {
2233         __s64 now;
2234
2235         if (common_args_process(argc, argv, 2, 2, argv[0],
2236                                 "<time>", 0))
2237                 return;
2238
2239         now = string_to_time(argv[1]);
2240         if (now == -1) {
2241                 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
2242                         argv[1]);
2243                 return;
2244
2245         } else {
2246                 printf("Setting current time to %s\n", time_to_string(now));
2247                 current_fs->now = now;
2248         }
2249 }
2250 #endif /* READ_ONLY */
2251
2252 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
2253 {
2254         int compat, bit, ret;
2255         unsigned int feature_mask;
2256
2257         if (name) {
2258                 if (feature_type == E2P_FS_FEATURE)
2259                         ret = e2p_string2feature(name, &compat, &feature_mask);
2260                 else
2261                         ret = e2p_jrnl_string2feature(name, &compat,
2262                                                       &feature_mask);
2263                 if (ret)
2264                         return ret;
2265
2266                 if (!(supp[compat] & feature_mask))
2267                         return 1;
2268         } else {
2269                 for (compat = 0; compat < 3; compat++) {
2270                         for (bit = 0, feature_mask = 1; bit < 32;
2271                              bit++, feature_mask <<= 1) {
2272                                 if (supp[compat] & feature_mask) {
2273                                         if (feature_type == E2P_FS_FEATURE)
2274                                                 fprintf(stdout, " %s",
2275                                                 e2p_feature2string(compat,
2276                                                 feature_mask));
2277                                         else
2278                                                 fprintf(stdout, " %s",
2279                                                 e2p_jrnl_feature2string(compat,
2280                                                 feature_mask));
2281                                 }
2282                         }
2283                 }
2284                 fprintf(stdout, "\n");
2285         }
2286
2287         return 0;
2288 }
2289
2290 void do_supported_features(int argc, char *argv[],
2291                            int sci_idx EXT2FS_ATTR((unused)),
2292                            void *infop EXT2FS_ATTR((unused)))
2293 {
2294         int     ret;
2295         __u32   supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2296                             EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2297                             EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2298         __u32   jrnl_supp[3] = { JBD2_KNOWN_COMPAT_FEATURES,
2299                                  JBD2_KNOWN_INCOMPAT_FEATURES,
2300                                  JBD2_KNOWN_ROCOMPAT_FEATURES };
2301
2302         if (argc > 1) {
2303                 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2304                 if (ret) {
2305                         ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2306                                                 argv[1]);
2307                 }
2308                 if (ret)
2309                         com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2310                 else
2311                         fprintf(stdout, "Supported feature: %s\n", argv[1]);
2312         } else {
2313                 fprintf(stdout, "Supported features:");
2314                 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2315                 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2316         }
2317 }
2318
2319 #ifndef READ_ONLY
2320 void do_punch(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2321               void *infop EXT2FS_ATTR((unused)))
2322 {
2323         ext2_ino_t      ino;
2324         blk64_t         start, end;
2325         int             err;
2326         errcode_t       errcode;
2327
2328         if (common_args_process(argc, argv, 3, 4, argv[0],
2329                                 "<file> start_blk [end_blk]",
2330                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
2331                 return;
2332
2333         ino = string_to_inode(argv[1]);
2334         if (!ino)
2335                 return;
2336         err = strtoblk(argv[0], argv[2], "logical block", &start);
2337         if (err)
2338                 return;
2339         if (argc == 4) {
2340                 err = strtoblk(argv[0], argv[3], "logical block", &end);
2341                 if (err)
2342                         return;
2343         } else
2344                 end = ~0;
2345
2346         errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
2347
2348         if (errcode) {
2349                 com_err(argv[0], errcode,
2350                         "while truncating inode %u from %llu to %llu\n", ino,
2351                         (unsigned long long) start, (unsigned long long) end);
2352                 return;
2353         }
2354 }
2355
2356 void do_fallocate(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2357                   void *infop EXT2FS_ATTR((unused)))
2358 {
2359         ext2_ino_t      ino;
2360         blk64_t         start, end;
2361         int             err;
2362         errcode_t       errcode;
2363
2364         if (common_args_process(argc, argv, 3, 4, argv[0],
2365                                 "<file> start_blk [end_blk]",
2366                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
2367                 return;
2368
2369         ino = string_to_inode(argv[1]);
2370         if (!ino)
2371                 return;
2372         err = strtoblk(argv[0], argv[2], "logical block", &start);
2373         if (err)
2374                 return;
2375         if (argc == 4) {
2376                 err = strtoblk(argv[0], argv[3], "logical block", &end);
2377                 if (err)
2378                         return;
2379         } else
2380                 end = ~0;
2381
2382         errcode = ext2fs_fallocate(current_fs, EXT2_FALLOCATE_INIT_BEYOND_EOF,
2383                                    ino, NULL, ~0ULL, start, end - start + 1);
2384
2385         if (errcode) {
2386                 com_err(argv[0], errcode,
2387                         "while fallocating inode %u from %llu to %llu\n", ino,
2388                         (unsigned long long) start, (unsigned long long) end);
2389                 return;
2390         }
2391 }
2392
2393 void do_symlink(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2394                 void *infop EXT2FS_ATTR((unused)))
2395 {
2396         errcode_t       retval;
2397
2398         if (common_args_process(argc, argv, 3, 3, "symlink",
2399                                 "<filename> <target>", CHECK_FS_RW))
2400                 return;
2401
2402         retval = do_symlink_internal(current_fs, cwd, argv[1], argv[2], root);
2403         if (retval)
2404                 com_err(argv[0], retval, 0);
2405
2406 }
2407 #endif /* READ_ONLY */
2408
2409 #if CONFIG_MMP
2410 void do_dump_mmp(int argc EXT2FS_ATTR((unused)), char *argv[],
2411                  int sci_idx EXT2FS_ATTR((unused)),
2412                  void *infop EXT2FS_ATTR((unused)))
2413 {
2414         struct mmp_struct *mmp_s;
2415         unsigned long long mmp_block;
2416         time_t t;
2417         errcode_t retval = 0;
2418
2419         if (check_fs_open(argv[0]))
2420                 return;
2421
2422         if (argc > 1) {
2423                 char *end = NULL;
2424                 mmp_block = strtoull(argv[1], &end, 0);
2425                 if (end == argv[0] || mmp_block == 0) {
2426                         fprintf(stderr, "%s: invalid MMP block '%s' given\n",
2427                                 argv[0], argv[1]);
2428                         return;
2429                 }
2430         } else {
2431                 mmp_block = current_fs->super->s_mmp_block;
2432         }
2433
2434         if (mmp_block == 0) {
2435                 fprintf(stderr, "%s: MMP: not active on this filesystem.\n",
2436                         argv[0]);
2437                 return;
2438         }
2439
2440         if (current_fs->mmp_buf == NULL) {
2441                 retval = ext2fs_get_mem(current_fs->blocksize,
2442                                         &current_fs->mmp_buf);
2443                 if (retval) {
2444                         com_err(argv[0], retval, "allocating MMP buffer.\n");
2445                         return;
2446                 }
2447         }
2448
2449         mmp_s = current_fs->mmp_buf;
2450
2451         retval = ext2fs_mmp_read(current_fs, mmp_block, current_fs->mmp_buf);
2452         if (retval) {
2453                 com_err(argv[0], retval, "reading MMP block %llu.\n",
2454                         (unsigned long long) mmp_block);
2455                 return;
2456         }
2457
2458         t = mmp_s->mmp_time;
2459         fprintf(stdout, "block_number: %llu\n",
2460                 (unsigned long long) current_fs->super->s_mmp_block);
2461         fprintf(stdout, "update_interval: %d\n",
2462                 current_fs->super->s_mmp_update_interval);
2463         fprintf(stdout, "check_interval: %d\n", mmp_s->mmp_check_interval);
2464         fprintf(stdout, "sequence: %08x\n", mmp_s->mmp_seq);
2465         fprintf(stdout, "time: %llu -- %s",
2466                 (unsigned long long) mmp_s->mmp_time, ctime(&t));
2467         fprintf(stdout, "node_name: %.*s\n",
2468                 EXT2_LEN_STR(mmp_s->mmp_nodename));
2469         fprintf(stdout, "device_name: %.*s\n",
2470                 EXT2_LEN_STR(mmp_s->mmp_bdevname));
2471         fprintf(stdout, "magic: 0x%x\n", mmp_s->mmp_magic);
2472         fprintf(stdout, "checksum: 0x%08x\n", mmp_s->mmp_checksum);
2473 }
2474 #else
2475 void do_dump_mmp(int argc EXT2FS_ATTR((unused)),
2476                  char *argv[] EXT2FS_ATTR((unused)),
2477                  int sci_idx EXT2FS_ATTR((unused)),
2478                  void *infop EXT2FS_ATTR((unused)))
2479 {
2480         fprintf(stdout, "MMP is unsupported, please recompile with "
2481                         "--enable-mmp\n");
2482 }
2483 #endif
2484
2485 static int source_file(const char *cmd_file, int ss_idx)
2486 {
2487         FILE            *f;
2488         char            buf[BUFSIZ];
2489         char            *cp;
2490         int             exit_status = 0;
2491         int             retval;
2492
2493         if (strcmp(cmd_file, "-") == 0)
2494                 f = stdin;
2495         else {
2496                 f = fopen(cmd_file, "r");
2497                 if (!f) {
2498                         perror(cmd_file);
2499                         exit(1);
2500                 }
2501         }
2502         fflush(stdout);
2503         fflush(stderr);
2504         setbuf(stdout, NULL);
2505         setbuf(stderr, NULL);
2506         while (!feof(f)) {
2507                 if (fgets(buf, sizeof(buf), f) == NULL)
2508                         break;
2509                 if (buf[0] == '#') {
2510                         printf("%s", buf);
2511                         continue;
2512                 }
2513                 cp = strchr(buf, '\n');
2514                 if (cp)
2515                         *cp = 0;
2516                 cp = strchr(buf, '\r');
2517                 if (cp)
2518                         *cp = 0;
2519                 printf("debugfs: %s\n", buf);
2520                 retval = ss_execute_line(ss_idx, buf);
2521                 if (retval) {
2522                         ss_perror(ss_idx, retval, buf);
2523                         exit_status++;
2524                 }
2525         }
2526         if (f != stdin)
2527                 fclose(f);
2528         return exit_status;
2529 }
2530
2531 int main(int argc, char **argv)
2532 {
2533         int             retval;
2534         const char      *usage =
2535                 "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] "
2536                 "[-R request] [-d data_source_device] [-i] [-n] [-D] [-V] ["
2537 #ifndef READ_ONLY
2538                 "[-w] [-z undo_file] "
2539 #endif
2540                 "[-c]] [device]";
2541         int             c;
2542         int             open_flags = EXT2_FLAG_SOFTSUPP_FEATURES |
2543                                 EXT2_FLAG_64BITS | EXT2_FLAG_THREADS;
2544         char            *request = 0;
2545         int             exit_status = 0;
2546         char            *cmd_file = 0;
2547         blk64_t         superblock = 0;
2548         blk64_t         blocksize = 0;
2549         int             catastrophic = 0;
2550         char            *data_filename = 0;
2551 #ifdef READ_ONLY
2552         const char      *opt_string = "nicR:f:b:s:Vd:D";
2553 #else
2554         const char      *opt_string = "niwcR:f:b:s:Vd:Dz:";
2555 #endif
2556         char            *undo_file = NULL;
2557 #ifdef CONFIG_JBD_DEBUG
2558         char            *jbd_debug;
2559 #endif
2560
2561         if (debug_prog_name == 0)
2562 #ifdef READ_ONLY
2563                 debug_prog_name = "rdebugfs";
2564 #else
2565                 debug_prog_name = "debugfs";
2566 #endif
2567         add_error_table(&et_ext2_error_table);
2568         fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2569                  E2FSPROGS_VERSION, E2FSPROGS_DATE);
2570
2571 #ifdef CONFIG_JBD_DEBUG
2572         jbd_debug = ss_safe_getenv("DEBUGFS_JBD_DEBUG");
2573         if (jbd_debug) {
2574                 int res = sscanf(jbd_debug, "%d", &journal_enable_debug);
2575
2576                 if (res != 1) {
2577                         fprintf(stderr,
2578                                 "DEBUGFS_JBD_DEBUG \"%s\" not an integer\n\n",
2579                                 jbd_debug);
2580                         exit(1);
2581                 }
2582         }
2583 #endif
2584         while ((c = getopt (argc, argv, opt_string)) != EOF) {
2585                 switch (c) {
2586                 case 'R':
2587                         request = optarg;
2588                         break;
2589                 case 'f':
2590                         cmd_file = optarg;
2591                         break;
2592                 case 'd':
2593                         data_filename = optarg;
2594                         break;
2595                 case 'i':
2596                         open_flags |= EXT2_FLAG_IMAGE_FILE;
2597                         break;
2598                 case 'n':
2599                         open_flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
2600                         break;
2601 #ifndef READ_ONLY
2602                 case 'w':
2603                         open_flags |= EXT2_FLAG_RW;
2604                         break;
2605 #endif
2606                 case 'D':
2607                         open_flags |= EXT2_FLAG_DIRECT_IO;
2608                         break;
2609                 case 'b':
2610                         blocksize = parse_ulong(optarg, argv[0],
2611                                                 "block size", 0);
2612                         break;
2613                 case 's':
2614                         retval = strtoblk(argv[0], optarg,
2615                                           "superblock block number",
2616                                           &superblock);
2617                         if (retval)
2618                                 return 1;
2619                         break;
2620                 case 'c':
2621                         catastrophic = 1;
2622                         break;
2623                 case 'V':
2624                         /* Print version number and exit */
2625                         fprintf(stderr, "\tUsing %s\n",
2626                                 error_message(EXT2_ET_BASE));
2627                         exit(0);
2628 #ifndef READ_ONLY
2629                 case 'z':
2630                         undo_file = optarg;
2631                         break;
2632 #endif
2633                 default:
2634                         com_err(argv[0], 0, usage, debug_prog_name);
2635                         return 1;
2636                 }
2637         }
2638         if (optind < argc)
2639                 open_filesystem(argv[optind], open_flags,
2640                                 superblock, blocksize, catastrophic,
2641                                 data_filename, undo_file);
2642
2643         ss_sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2644                                           &debug_cmds, &retval);
2645         if (retval) {
2646                 ss_perror(ss_sci_idx, retval, "creating invocation");
2647                 exit(1);
2648         }
2649         ss_get_readline(ss_sci_idx);
2650
2651         (void) ss_add_request_table(ss_sci_idx, &ss_std_requests, 1, &retval);
2652         if (retval) {
2653                 ss_perror(ss_sci_idx, retval, "adding standard requests");
2654                 exit (1);
2655         }
2656         if (extra_cmds)
2657                 ss_add_request_table(ss_sci_idx, extra_cmds, 1, &retval);
2658         if (retval) {
2659                 ss_perror(ss_sci_idx, retval, "adding extra requests");
2660                 exit (1);
2661         }
2662         if (request) {
2663                 retval = 0;
2664                 retval = ss_execute_line(ss_sci_idx, request);
2665                 if (retval) {
2666                         ss_perror(ss_sci_idx, retval, request);
2667                         exit_status++;
2668                 }
2669         } else if (cmd_file) {
2670                 exit_status = source_file(cmd_file, ss_sci_idx);
2671         } else {
2672                 ss_listen(ss_sci_idx);
2673         }
2674
2675         ss_delete_invocation(ss_sci_idx);
2676
2677         if (current_fs)
2678                 close_filesystem();
2679
2680         remove_error_table(&et_ext2_error_table);
2681         return exit_status;
2682 }