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                 print_bg_opts(current_fs, i, EXT2_BG_IOPS, "IOPS",
 519                               &first, out);
 520                 if (gdt_csum) {
 521                         fprintf(out, "%sChecksum 0x%04x",
 522                                 first ? "           [":", ", ext2fs_bg_checksum(current_fs, i));
 523                         first = 0;
 524                 }
 525                 if (!first)
 526                         fputs("]\n", out);
 527         }
 528         close_pager(out);
 529         return;
 530 print_usage:
 531         fprintf(stderr, "%s: Usage: show_super_stats [-h]\n", argv[0]);
 532 }
 533
 534 #ifndef READ_ONLY
 535 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
 536                       char **argv EXT2FS_ATTR((unused)),
 537                       int sci_idx EXT2FS_ATTR((unused)),
 538                       void *infop EXT2FS_ATTR((unused)))
 539 {
 540         if (check_fs_open(argv[0]))
 541                 return;
 542         if (check_fs_read_write(argv[0]))
 543                 return;
 544
 545         if (argv[1] && !strcmp(argv[1], "-clean"))
 546                 current_fs->super->s_state |= EXT2_VALID_FS;
 547         else
 548                 current_fs->super->s_state &= ~EXT2_VALID_FS;
 549         ext2fs_mark_super_dirty(current_fs);
 550 }
 551 #endif /* READ_ONLY */
 552
 553 struct list_blocks_struct {
 554         FILE            *f;
 555         e2_blkcnt_t     total;
 556         blk64_t         first_block, last_block;
 557         e2_blkcnt_t     first_bcnt, last_bcnt;
 558         e2_blkcnt_t     first;
 559 };
 560
 561 static void finish_range(struct list_blocks_struct *lb)
 562 {
 563         if (lb->first_block == 0)
 564                 return;
 565         if (lb->first)
 566                 lb->first = 0;
 567         else
 568                 fprintf(lb->f, ", ");
 569         if (lb->first_block == lb->last_block)
 570                 fprintf(lb->f, "(%lld):%llu",
 571                         (long long)lb->first_bcnt,
 572                         (unsigned long long) lb->first_block);
 573         else
 574                 fprintf(lb->f, "(%lld-%lld):%llu-%llu",
 575                         (long long)lb->first_bcnt, (long long)lb->last_bcnt,
 576                         (unsigned long long) lb->first_block,
 577                         (unsigned long long) lb->last_block);
 578         lb->first_block = 0;
 579 }
 580
 581 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
 582                             blk64_t *blocknr, e2_blkcnt_t blockcnt,
 583                             blk64_t ref_block EXT2FS_ATTR((unused)),
 584                             int ref_offset EXT2FS_ATTR((unused)),
 585                             void *private)
 586 {
 587         struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
 588
 589         lb->total++;
 590         if (blockcnt >= 0) {
 591                 /*
 592                  * See if we can add on to the existing range (if it exists)
 593                  */
 594                 if (lb->first_block &&
 595                     (lb->last_block+1 == *blocknr) &&
 596                     (lb->last_bcnt+1 == blockcnt)) {
 597                         lb->last_block = *blocknr;
 598                         lb->last_bcnt = blockcnt;
 599                         return 0;
 600                 }
 601                 /*
 602                  * Start a new range.
 603                  */
 604                 finish_range(lb);
 605                 lb->first_block = lb->last_block = *blocknr;
 606                 lb->first_bcnt = lb->last_bcnt = blockcnt;
 607                 return 0;
 608         }
 609         /*
 610          * Not a normal block.  Always force a new range.
 611          */
 612         finish_range(lb);
 613         if (lb->first)
 614                 lb->first = 0;
 615         else
 616                 fprintf(lb->f, ", ");
 617         if (blockcnt == -1)
 618                 fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr);
 619         else if (blockcnt == -2)
 620                 fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr);
 621         else if (blockcnt == -3)
 622                 fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr);
 623         return 0;
 624 }
 625
 626 static void internal_dump_inode_extra(FILE *out,
 627                                       const char *prefix EXT2FS_ATTR((unused)),
 628                                       ext2_ino_t inode_num EXT2FS_ATTR((unused)),
 629                                       struct ext2_inode_large *inode)
 630 {
 631         fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
 632         if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
 633                         EXT2_GOOD_OLD_INODE_SIZE) {
 634                 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
 635                                 inode->i_extra_isize);
 636                 return;
 637         }
 638 }
 639
 640 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
 641 {
 642         struct list_blocks_struct lb;
 643
 644         fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
 645         lb.total = 0;
 646         lb.first_block = 0;
 647         lb.f = f;
 648         lb.first = 1;
 649         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
 650                               list_blocks_proc, (void *)&lb);
 651         finish_range(&lb);
 652         if (lb.total)
 653                 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
 654         fprintf(f,"\n");
 655 }
 656
 657 static int int_log10(unsigned long long arg)
 658 {
 659         int     l = 0;
 660
 661         arg = arg / 10;
 662         while (arg) {
 663                 l++;
 664                 arg = arg / 10;
 665         }
 666         return l;
 667 }
 668
 669 #define DUMP_LEAF_EXTENTS       0x01
 670 #define DUMP_NODE_EXTENTS       0x02
 671 #define DUMP_EXTENT_TABLE       0x04
 672
 673 static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino,
 674                          int flags, int logical_width, int physical_width)
 675 {
 676         ext2_extent_handle_t    handle;
 677         struct ext2fs_extent    extent;
 678         struct ext2_extent_info info;
 679         int                     op = EXT2_EXTENT_ROOT;
 680         unsigned int            printed = 0;
 681         errcode_t               errcode;
 682
 683         errcode = ext2fs_extent_open(current_fs, ino, &handle);
 684         if (errcode)
 685                 return;
 686
 687         if (flags & DUMP_EXTENT_TABLE)
 688                 fprintf(f, "Level Entries %*s %*s Length Flags\n",
 689                         (logical_width*2)+3, "Logical",
 690                         (physical_width*2)+3, "Physical");
 691         else
 692                 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix);
 693
 694         while (1) {
 695                 errcode = ext2fs_extent_get(handle, op, &extent);
 696
 697                 if (errcode)
 698                         break;
 699
 700                 op = EXT2_EXTENT_NEXT;
 701
 702                 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 703                         continue;
 704
 705                 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
 706                         if ((flags & DUMP_LEAF_EXTENTS) == 0)
 707                                 continue;
 708                 } else {
 709                         if ((flags & DUMP_NODE_EXTENTS) == 0)
 710                                 continue;
 711                 }
 712
 713                 errcode = ext2fs_extent_get_info(handle, &info);
 714                 if (errcode)
 715                         continue;
 716
 717                 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) {
 718                         if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 719                                 continue;
 720
 721                         if (flags & DUMP_EXTENT_TABLE) {
 722                                 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 723                                         "%*llu%*s %6u\n",
 724                                         info.curr_level, info.max_depth,
 725                                         info.curr_entry, info.num_entries,
 726                                         logical_width,
 727                                         (unsigned long long) extent.e_lblk,
 728                                         logical_width,
 729                                         (unsigned long long) extent.e_lblk + (extent.e_len - 1),
 730                                         physical_width,
 731                                         (unsigned long long) extent.e_pblk,
 732                                         physical_width+3, "", extent.e_len);
 733                                 continue;
 734                         }
 735
 736                         fprintf(f, "%s(ETB%d):%llu",
 737                                 printed ? ", " : "", info.curr_level,
 738                                 (unsigned long long) extent.e_pblk);
 739                         printed = 1;
 740                         continue;
 741                 }
 742
 743                 if (flags & DUMP_EXTENT_TABLE) {
 744                         fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 745                                 "%*llu - %*llu %6u %s\n",
 746                                 info.curr_level, info.max_depth,
 747                                 info.curr_entry, info.num_entries,
 748                                 logical_width,
 749                                 (unsigned long long) extent.e_lblk,
 750                                 logical_width,
 751                                 (unsigned long long) extent.e_lblk + (extent.e_len - 1),
 752                                 physical_width,
 753                                 (unsigned long long) extent.e_pblk,
 754                                 physical_width,
 755                                 (unsigned long long) extent.e_pblk + (extent.e_len - 1),
 756                                 extent.e_len,
 757                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 758                                         "Uninit" : "");
 759                         continue;
 760                 }
 761
 762                 if (extent.e_len == 0)
 763                         continue;
 764                 else if (extent.e_len == 1)
 765                         fprintf(f,
 766                                 "%s(%lld%s):%lld",
 767                                 printed ? ", " : "",
 768                                 (unsigned long long) extent.e_lblk,
 769                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 770                                 "[u]" : "",
 771                                 (unsigned long long) extent.e_pblk);
 772                 else
 773                         fprintf(f,
 774                                 "%s(%lld-%lld%s):%lld-%lld",
 775                                 printed ? ", " : "",
 776                                 (unsigned long long) extent.e_lblk,
 777                                 (unsigned long long) extent.e_lblk + (extent.e_len - 1),
 778                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 779                                         "[u]" : "",
 780                                 (unsigned long long) extent.e_pblk,
 781                                 (unsigned long long) extent.e_pblk + (extent.e_len - 1));
 782                 printed = 1;
 783         }
 784         if (printed)
 785                 fprintf(f, "\n");
 786         ext2fs_extent_free(handle);
 787 }
 788
 789 static void dump_inline_data(FILE *out, const char *prefix, ext2_ino_t inode_num)
 790 {
 791         errcode_t retval;
 792         size_t size;
 793
 794         retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
 795         if (!retval)
 796                 fprintf(out, "%sSize of inline data: %zu\n", prefix, size);
 797 }
 798
 799 static void dump_inline_symlink(FILE *out, ext2_ino_t inode_num,
 800                                 struct ext2_inode *inode, const char *prefix)
 801 {
 802         errcode_t retval;
 803         char *buf = NULL;
 804         size_t size;
 805
 806         retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
 807         if (retval)
 808                 goto out;
 809
 810         retval = ext2fs_get_memzero(size + 1, &buf);
 811         if (retval)
 812                 goto out;
 813
 814         retval = ext2fs_inline_data_get(current_fs, inode_num,
 815                                         inode, buf, &size);
 816         if (retval)
 817                 goto out;
 818
 819         fprintf(out, "%sFast link dest: \"%.*s\"\n", prefix,
 820                 (int)size, buf);
 821 out:
 822         if (buf)
 823                 ext2fs_free_mem(&buf);
 824         if (retval)
 825                 com_err(__func__, retval, "while dumping link destination");
 826 }
 827
 828 void internal_dump_inode(FILE *out, const char *prefix,
 829                          ext2_ino_t inode_num, struct ext2_inode *inode,
 830                          int do_dump_blocks)
 831 {
 832         const char *i_type;
 833         char frag, fsize;
 834         int os = current_fs->super->s_creator_os;
 835         struct ext2_inode_large *large_inode;
 836         int is_large_inode = 0;
 837
 838         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 839                 is_large_inode = 1;
 840         large_inode = (struct ext2_inode_large *) inode;
 841
 842         if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
 843         else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
 844         else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
 845         else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
 846         else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
 847         else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
 848         else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
 849         else i_type = "bad type";
 850         fprintf(out, "%sInode: %u   Type: %s    ", prefix, inode_num, i_type);
 851         fprintf(out, "%sMode:  0%03o   Flags: 0x%x\n",
 852                 prefix, inode->i_mode & 07777, inode->i_flags);
 853         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 854                 fprintf(out, "%sGeneration: %u    Version: 0x%08x:%08x\n",
 855                         prefix, inode->i_generation, large_inode->i_version_hi,
 856                         inode->osd1.linux1.l_i_version);
 857         } else {
 858                 fprintf(out, "%sGeneration: %u    Version: 0x%08x\n", prefix,
 859                         inode->i_generation, inode->osd1.linux1.l_i_version);
 860         }
 861         fprintf(out, "%sUser: %5d   Group: %5d",
 862                 prefix, inode_uid(*inode), inode_gid(*inode));
 863         if (is_large_inode && large_inode->i_extra_isize >= 32)
 864                 fprintf(out, "   Project: %5d", large_inode->i_projid);
 865         fputs("   Size: ", out);
 866         if (LINUX_S_ISREG(inode->i_mode) || LINUX_S_ISDIR(inode->i_mode))
 867                 fprintf(out, "%llu\n", (unsigned long long) EXT2_I_SIZE(inode));
 868         else
 869                 fprintf(out, "%u\n", inode->i_size);
 870         if (os == EXT2_OS_HURD)
 871                 fprintf(out,
 872                         "%sFile ACL: %u Translator: %u\n",
 873                         prefix,
 874                         inode->i_file_acl,
 875                         inode->osd1.hurd1.h_i_translator);
 876         else
 877                 fprintf(out, "%sFile ACL: %llu\n",
 878                         prefix,
 879                         inode->i_file_acl | ((long long)
 880                                 (inode->osd2.linux2.l_i_file_acl_high) << 32));
 881         if (os != EXT2_OS_HURD)
 882                 fprintf(out, "%sLinks: %u   Blockcount: %llu\n",
 883                         prefix, inode->i_links_count,
 884                         (((unsigned long long)
 885                           inode->osd2.linux2.l_i_blocks_hi << 32)) +
 886                         inode->i_blocks);
 887         else
 888                 fprintf(out, "%sLinks: %u   Blockcount: %u\n",
 889                         prefix, inode->i_links_count, inode->i_blocks);
 890         switch (os) {
 891             case EXT2_OS_HURD:
 892                 frag = inode->osd2.hurd2.h_i_frag;
 893                 fsize = inode->osd2.hurd2.h_i_fsize;
 894                 break;
 895             default:
 896                 frag = fsize = 0;
 897         }
 898         fprintf(out, "%sFragment:  Address: %u    Number: %u    Size: %u\n",
 899                 prefix, inode->i_faddr, frag, fsize);
 900         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 901                 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
 902                         inode->i_ctime, large_inode->i_ctime_extra,
 903                         inode_time_to_string(inode->i_ctime,
 904                                              large_inode->i_ctime_extra));
 905                 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
 906                         inode->i_atime, large_inode->i_atime_extra,
 907                         inode_time_to_string(inode->i_atime,
 908                                              large_inode->i_atime_extra));
 909                 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
 910                         inode->i_mtime, large_inode->i_mtime_extra,
 911                         inode_time_to_string(inode->i_mtime,
 912                                              large_inode->i_mtime_extra));
 913                 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
 914                         large_inode->i_crtime, large_inode->i_crtime_extra,
 915                         inode_time_to_string(large_inode->i_crtime,
 916                                              large_inode->i_crtime_extra));
 917                 if (inode->i_dtime)
 918                         fprintf(out, "%s dtime: 0x%08x:(%08x) -- %s", prefix,
 919                                 large_inode->i_dtime, large_inode->i_ctime_extra,
 920                                 inode_time_to_string(inode->i_dtime,
 921                                                      large_inode->i_ctime_extra));
 922         } else {
 923                 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
 924                         time_to_string((__s32) inode->i_ctime));
 925                 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
 926                         time_to_string((__s32) inode->i_atime));
 927                 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
 928                         time_to_string((__s32) inode->i_mtime));
 929                 if (inode->i_dtime)
 930                         fprintf(out, "%sdtime: 0x%08x -- %s", prefix,
 931                                 inode->i_dtime,
 932                                 time_to_string((__s32) inode->i_dtime));
 933         }
 934         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 935                 internal_dump_inode_extra(out, prefix, inode_num,
 936                                           (struct ext2_inode_large *) inode);
 937         dump_inode_attributes(out, inode_num);
 938         if (ext2fs_has_feature_metadata_csum(current_fs->super)) {
 939                 __u32 crc = inode->i_checksum_lo;
 940                 if (is_large_inode &&
 941                     large_inode->i_extra_isize >=
 942                                 (offsetof(struct ext2_inode_large,
 943                                           i_checksum_hi) -
 944                                  EXT2_GOOD_OLD_INODE_SIZE))
 945                         crc |= ((__u32)large_inode->i_checksum_hi) << 16;
 946                 fprintf(out, "Inode checksum: 0x%08x\n", crc);
 947         }
 948
 949         if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_is_fast_symlink(inode))
 950                 fprintf(out, "%sFast link dest: \"%.*s\"\n", prefix,
 951                         (int)EXT2_I_SIZE(inode), (char *)inode->i_block);
 952         else if (LINUX_S_ISLNK(inode->i_mode) &&
 953                    (inode->i_flags & EXT4_INLINE_DATA_FL))
 954                 dump_inline_symlink(out, inode_num, inode, prefix);
 955         else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
 956                 int major, minor;
 957                 const char *devnote;
 958
 959                 if (inode->i_block[0]) {
 960                         major = (inode->i_block[0] >> 8) & 255;
 961                         minor = inode->i_block[0] & 255;
 962                         devnote = "";
 963                 } else {
 964                         major = (inode->i_block[1] & 0xfff00) >> 8;
 965                         minor = ((inode->i_block[1] & 0xff) |
 966                                  ((inode->i_block[1] >> 12) & 0xfff00));
 967                         devnote = "(New-style) ";
 968                 }
 969                 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
 970                         devnote, major, minor, major, minor);
 971         } else if (do_dump_blocks) {
 972                 if (inode->i_flags & EXT4_EXTENTS_FL)
 973                         dump_extents(out, prefix, inode_num,
 974                                      DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0);
 975                 else if (inode->i_flags & EXT4_INLINE_DATA_FL)
 976                         dump_inline_data(out, prefix, inode_num);
 977                 else
 978                         dump_blocks(out, prefix, inode_num);
 979         }
 980 }
 981
 982 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
 983 {
 984         FILE    *out;
 985
 986         out = open_pager();
 987         internal_dump_inode(out, "", inode_num, inode, 1);
 988         close_pager(out);
 989 }
 990
 991 void do_stat(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
 992              void *infop EXT2FS_ATTR((unused)))
 993 {
 994         ext2_ino_t      inode;
 995         struct ext2_inode * inode_buf;
 996
 997         if (check_fs_open(argv[0]))
 998                 return;
 999
1000         inode_buf = (struct ext2_inode *)
1001                         malloc(EXT2_INODE_SIZE(current_fs->super));
1002         if (!inode_buf) {
1003                 fprintf(stderr, "do_stat: can't allocate buffer\n");
1004                 return;
1005         }
1006
1007         if (common_inode_args_process(argc, argv, &inode, 0)) {
1008                 free(inode_buf);
1009                 return;
1010         }
1011
1012         if (debugfs_read_inode2(inode, inode_buf, argv[0],
1013                                 EXT2_INODE_SIZE(current_fs->super), 0)) {
1014                 free(inode_buf);
1015                 return;
1016         }
1017
1018         dump_inode(inode, inode_buf);
1019         free(inode_buf);
1020         return;
1021 }
1022
1023 void do_dump_extents(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
1024                      void *infop EXT2FS_ATTR((unused)))
1025 {
1026         struct ext2_inode inode;
1027         ext2_ino_t      ino;
1028         FILE            *out;
1029         int             c, flags = 0;
1030         int             logical_width;
1031         int             physical_width;
1032
1033         reset_getopt();
1034         while ((c = getopt(argc, argv, "nl")) != EOF) {
1035                 switch (c) {
1036                 case 'n':
1037                         flags |= DUMP_NODE_EXTENTS;
1038                         break;
1039                 case 'l':
1040                         flags |= DUMP_LEAF_EXTENTS;
1041                         break;
1042                 }
1043         }
1044
1045         if (argc != optind + 1) {
1046                 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
1047                 return;
1048         }
1049
1050         if (flags == 0)
1051                 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
1052         flags |= DUMP_EXTENT_TABLE;
1053
1054         if (check_fs_open(argv[0]))
1055                 return;
1056
1057         ino = string_to_inode(argv[optind]);
1058         if (ino == 0)
1059                 return;
1060
1061         if (debugfs_read_inode(ino, &inode, argv[0]))
1062                 return;
1063
1064         if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
1065                 fprintf(stderr, "%s: does not uses extent block maps\n",
1066                         argv[optind]);
1067                 return;
1068         }
1069
1070         logical_width = int_log10((EXT2_I_SIZE(&inode)+current_fs->blocksize-1)/
1071                                   current_fs->blocksize) + 1;
1072         if (logical_width < 5)
1073                 logical_width = 5;
1074         physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1;
1075         if (physical_width < 5)
1076                 physical_width = 5;
1077
1078         out = open_pager();
1079         dump_extents(out, "", ino, flags, logical_width, physical_width);
1080         close_pager(out);
1081         return;
1082 }
1083
1084 static int print_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
1085                              blk64_t *blocknr,
1086                              e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1087                              blk64_t ref_block EXT2FS_ATTR((unused)),
1088                              int ref_offset EXT2FS_ATTR((unused)),
1089                              void *private EXT2FS_ATTR((unused)))
1090 {
1091         printf("%llu ", (unsigned long long) *blocknr);
1092         return 0;
1093 }
1094
1095 void do_blocks(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1096                void *infop EXT2FS_ATTR((unused)))
1097 {
1098         ext2_ino_t      inode;
1099
1100         if (check_fs_open(argv[0]))
1101                 return;
1102
1103         if (common_inode_args_process(argc, argv, &inode, 0)) {
1104                 return;
1105         }
1106
1107         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
1108                               print_blocks_proc, NULL);
1109         fputc('\n', stdout);
1110         return;
1111 }
1112
1113 void do_chroot(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1114                void *infop EXT2FS_ATTR((unused)))
1115 {
1116         ext2_ino_t inode;
1117         int retval;
1118
1119         if (common_inode_args_process(argc, argv, &inode, 0))
1120                 return;
1121
1122         retval = ext2fs_check_directory(current_fs, inode);
1123         if (retval)  {
1124                 com_err(argv[1], retval, 0);
1125                 return;
1126         }
1127         root = inode;
1128 }
1129
1130 #ifndef READ_ONLY
1131 void do_clri(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1132              void *infop EXT2FS_ATTR((unused)))
1133 {
1134         ext2_ino_t inode;
1135         struct ext2_inode inode_buf;
1136
1137         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1138                 return;
1139
1140         if (debugfs_read_inode(inode, &inode_buf, argv[0]))
1141                 return;
1142         memset(&inode_buf, 0, sizeof(inode_buf));
1143         if (debugfs_write_inode(inode, &inode_buf, argv[0]))
1144                 return;
1145 }
1146
1147 void do_freei(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1148               void *infop EXT2FS_ATTR((unused)))
1149 {
1150         unsigned int    len = 1;
1151         int             err = 0;
1152         ext2_ino_t      inode;
1153
1154         if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1155                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1156                 return;
1157         if (check_fs_read_write(argv[0]))
1158                 return;
1159
1160         inode = string_to_inode(argv[1]);
1161         if (!inode)
1162                 return;
1163
1164         if (argc == 3) {
1165                 len = parse_ulong(argv[2], argv[0], "length", &err);
1166                 if (err)
1167                         return;
1168         }
1169
1170         if (len == 1 &&
1171             !ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1172                 com_err(argv[0], 0, "Warning: inode already clear");
1173         while (len-- > 0)
1174                 ext2fs_unmark_inode_bitmap2(current_fs->inode_map, inode++);
1175         ext2fs_mark_ib_dirty(current_fs);
1176 }
1177
1178 void do_seti(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1179              void *infop EXT2FS_ATTR((unused)))
1180 {
1181         unsigned int    len = 1;
1182         int             err = 0;
1183         ext2_ino_t      inode;
1184
1185         if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1186                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1187                 return;
1188         if (check_fs_read_write(argv[0]))
1189                 return;
1190
1191         inode = string_to_inode(argv[1]);
1192         if (!inode)
1193                 return;
1194
1195         if (argc == 3) {
1196                 len = parse_ulong(argv[2], argv[0], "length", &err);
1197                 if (err)
1198                         return;
1199         }
1200
1201         if ((len == 1) &&
1202             ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1203                 com_err(argv[0], 0, "Warning: inode already set");
1204         while (len-- > 0)
1205                 ext2fs_mark_inode_bitmap2(current_fs->inode_map, inode++);
1206         ext2fs_mark_ib_dirty(current_fs);
1207 }
1208 #endif /* READ_ONLY */
1209
1210 void do_testi(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1211               void *infop EXT2FS_ATTR((unused)))
1212 {
1213         ext2_ino_t inode;
1214
1215         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
1216                 return;
1217
1218         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1219                 printf("Inode %u is marked in use\n", inode);
1220         else
1221                 printf("Inode %u is not in use\n", inode);
1222 }
1223
1224 #ifndef READ_ONLY
1225 void do_freeb(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1226               void *infop EXT2FS_ATTR((unused)))
1227 {
1228         blk64_t block;
1229         blk64_t count = 1;
1230
1231         if (common_block_args_process(argc, argv, &block, &count))
1232                 return;
1233         if (check_fs_read_write(argv[0]))
1234                 return;
1235         while (count-- > 0) {
1236                 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
1237                         com_err(argv[0], 0, "Warning: block %llu already clear",
1238                                 (unsigned long long) block);
1239                 ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
1240                 block++;
1241         }
1242         ext2fs_mark_bb_dirty(current_fs);
1243 }
1244
1245 void do_setb(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1246              void *infop EXT2FS_ATTR((unused)))
1247 {
1248         blk64_t block;
1249         blk64_t count = 1;
1250
1251         if (common_block_args_process(argc, argv, &block, &count))
1252                 return;
1253         if (check_fs_read_write(argv[0]))
1254                 return;
1255         while (count-- > 0) {
1256                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1257                         com_err(argv[0], 0, "Warning: block %llu already set",
1258                                 (unsigned long long) block);
1259                 ext2fs_mark_block_bitmap2(current_fs->block_map,block);
1260                 block++;
1261         }
1262         ext2fs_mark_bb_dirty(current_fs);
1263 }
1264 #endif /* READ_ONLY */
1265
1266 void do_testb(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1267               void *infop EXT2FS_ATTR((unused)))
1268 {
1269         blk64_t block;
1270         blk64_t count = 1;
1271
1272         if (common_block_args_process(argc, argv, &block, &count))
1273                 return;
1274         while (count-- > 0) {
1275                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1276                         printf("Block %llu marked in use\n",
1277                                (unsigned long long) block);
1278                 else
1279                         printf("Block %llu not in use\n",
1280                                (unsigned long long) block);
1281                 block++;
1282         }
1283 }
1284
1285 #ifndef READ_ONLY
1286 static void modify_u8(char *com, const char *prompt,
1287                       const char *format, __u8 *val)
1288 {
1289         char buf[200];
1290         unsigned long v;
1291         char *tmp;
1292
1293         sprintf(buf, format, *val);
1294         printf("%30s    [%s] ", prompt, buf);
1295         if (!fgets(buf, sizeof(buf), stdin))
1296                 return;
1297         if (buf[strlen (buf) - 1] == '\n')
1298                 buf[strlen (buf) - 1] = '\0';
1299         if (!buf[0])
1300                 return;
1301         v = strtoul(buf, &tmp, 0);
1302         if (*tmp)
1303                 com_err(com, 0, "Bad value - %s", buf);
1304         else
1305                 *val = v;
1306 }
1307
1308 static void modify_u16(char *com, const char *prompt,
1309                        const char *format, __u16 *val)
1310 {
1311         char buf[200];
1312         unsigned long v;
1313         char *tmp;
1314
1315         sprintf(buf, format, *val);
1316         printf("%30s    [%s] ", prompt, buf);
1317         if (!fgets(buf, sizeof(buf), stdin))
1318                 return;
1319         if (buf[strlen (buf) - 1] == '\n')
1320                 buf[strlen (buf) - 1] = '\0';
1321         if (!buf[0])
1322                 return;
1323         v = strtoul(buf, &tmp, 0);
1324         if (*tmp)
1325                 com_err(com, 0, "Bad value - %s", buf);
1326         else
1327                 *val = v;
1328 }
1329
1330 static void modify_u32(char *com, const char *prompt,
1331                        const char *format, __u32 *val)
1332 {
1333         char buf[200];
1334         unsigned long v;
1335         char *tmp;
1336
1337         sprintf(buf, format, *val);
1338         printf("%30s    [%s] ", prompt, buf);
1339         if (!fgets(buf, sizeof(buf), stdin))
1340                 return;
1341         if (buf[strlen (buf) - 1] == '\n')
1342                 buf[strlen (buf) - 1] = '\0';
1343         if (!buf[0])
1344                 return;
1345         v = strtoul(buf, &tmp, 0);
1346         if (*tmp)
1347                 com_err(com, 0, "Bad value - %s", buf);
1348         else
1349                 *val = v;
1350 }
1351
1352
1353 void do_modify_inode(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1354                      void *infop EXT2FS_ATTR((unused)))
1355 {
1356         struct ext2_inode inode;
1357         ext2_ino_t      inode_num;
1358         int             i;
1359         unsigned char   *frag, *fsize;
1360         char            buf[80];
1361         int             os;
1362         const char      *hex_format = "0x%x";
1363         const char      *octal_format = "0%o";
1364         const char      *decimal_format = "%d";
1365         const char      *unsignedlong_format = "%lu";
1366
1367         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1368                 return;
1369
1370         os = current_fs->super->s_creator_os;
1371
1372         if (debugfs_read_inode(inode_num, &inode, argv[1]))
1373                 return;
1374
1375         modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1376         modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1377         modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1378         modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1379         modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1380         modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1381         modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1382         modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1383         modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1384         if (os == EXT2_OS_LINUX)
1385                 modify_u16(argv[0], "Block count high", unsignedlong_format,
1386                            &inode.osd2.linux2.l_i_blocks_hi);
1387         modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1388         modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1389         modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1390 #if 0
1391         modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1392 #endif
1393         modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1394
1395         modify_u32(argv[0], "High 32bits of size", decimal_format,
1396                    &inode.i_size_high);
1397
1398         if (os == EXT2_OS_HURD)
1399                 modify_u32(argv[0], "Translator Block",
1400                             decimal_format, &inode.osd1.hurd1.h_i_translator);
1401
1402         modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1403         switch (os) {
1404             case EXT2_OS_HURD:
1405                 frag = &inode.osd2.hurd2.h_i_frag;
1406                 fsize = &inode.osd2.hurd2.h_i_fsize;
1407                 break;
1408             default:
1409                 frag = fsize = 0;
1410         }
1411         if (frag)
1412                 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1413         if (fsize)
1414                 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1415
1416         for (i=0;  i < EXT2_NDIR_BLOCKS; i++) {
1417                 sprintf(buf, "Direct Block #%u", i);
1418                 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1419         }
1420         modify_u32(argv[0], "Indirect Block", decimal_format,
1421                     &inode.i_block[EXT2_IND_BLOCK]);
1422         modify_u32(argv[0], "Double Indirect Block", decimal_format,
1423                     &inode.i_block[EXT2_DIND_BLOCK]);
1424         modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1425                     &inode.i_block[EXT2_TIND_BLOCK]);
1426         if (debugfs_write_inode(inode_num, &inode, argv[1]))
1427                 return;
1428 }
1429 #endif /* READ_ONLY */
1430
1431 void do_change_working_dir(int argc, char *argv[],
1432                            int sci_idx EXT2FS_ATTR((unused)),
1433                            void *infop EXT2FS_ATTR((unused)))
1434 {
1435         ext2_ino_t      inode;
1436         int             retval;
1437
1438         if (common_inode_args_process(argc, argv, &inode, 0))
1439                 return;
1440
1441         retval = ext2fs_check_directory(current_fs, inode);
1442         if (retval) {
1443                 com_err(argv[1], retval, 0);
1444                 return;
1445         }
1446         cwd = inode;
1447         return;
1448 }
1449
1450 void do_print_working_directory(int argc, char *argv[],
1451                                 int sci_idx EXT2FS_ATTR((unused)),
1452                                 void *infop EXT2FS_ATTR((unused)))
1453 {
1454         int     retval;
1455         char    *pathname = NULL;
1456
1457         if (common_args_process(argc, argv, 1, 1,
1458                                 "print_working_directory", "", 0))
1459                 return;
1460
1461         retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1462         if (retval) {
1463                 com_err(argv[0], retval,
1464                         "while trying to get pathname of cwd");
1465         }
1466         printf("[pwd]   INODE: %6u  PATH: %s\n",
1467                cwd, pathname ? pathname : "NULL");
1468         if (pathname) {
1469                 free(pathname);
1470                 pathname = NULL;
1471         }
1472         retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1473         if (retval) {
1474                 com_err(argv[0], retval,
1475                         "while trying to get pathname of root");
1476         }
1477         printf("[root]  INODE: %6u  PATH: %s\n",
1478                root, pathname ? pathname : "NULL");
1479         if (pathname) {
1480                 free(pathname);
1481                 pathname = NULL;
1482         }
1483         return;
1484 }
1485
1486 #ifndef READ_ONLY
1487 static void make_link(char *sourcename, char *destname)
1488 {
1489         ext2_ino_t      ino;
1490         struct ext2_inode inode;
1491         int             retval;
1492         ext2_ino_t      dir;
1493         char            *dest, *cp, *base_name;
1494
1495         /*
1496          * Get the source inode
1497          */
1498         ino = string_to_inode(sourcename);
1499         if (!ino)
1500                 return;
1501         base_name = strrchr(sourcename, '/');
1502         if (base_name)
1503                 base_name++;
1504         else
1505                 base_name = sourcename;
1506         /*
1507          * Figure out the destination.  First see if it exists and is
1508          * a directory.
1509          */
1510         if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1511                 dest = base_name;
1512         else {
1513                 /*
1514                  * OK, it doesn't exist.  See if it is
1515                  * '<dir>/basename' or 'basename'
1516                  */
1517                 cp = strrchr(destname, '/');
1518                 if (cp) {
1519                         *cp = 0;
1520                         dir = string_to_inode(destname);
1521                         if (!dir)
1522                                 return;
1523                         dest = cp+1;
1524                 } else {
1525                         dir = cwd;
1526                         dest = destname;
1527                 }
1528         }
1529
1530         if (debugfs_read_inode(ino, &inode, sourcename))
1531                 return;
1532
1533         retval = ext2fs_link(current_fs, dir, dest, ino,
1534                              ext2_file_type(inode.i_mode));
1535         if (retval)
1536                 com_err("make_link", retval, 0);
1537         return;
1538 }
1539
1540
1541 void do_link(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1542              void *infop EXT2FS_ATTR((unused)))
1543 {
1544         if (common_args_process(argc, argv, 3, 3, "link",
1545                                 "<source file> <dest_name>", CHECK_FS_RW))
1546                 return;
1547
1548         make_link(argv[1], argv[2]);
1549 }
1550
1551 static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1552                             e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1553                             blk64_t ref_block EXT2FS_ATTR((unused)),
1554                             int ref_offset EXT2FS_ATTR((unused)),
1555                             void *private EXT2FS_ATTR((unused)))
1556 {
1557         blk64_t block;
1558
1559         block = *blocknr;
1560         ext2fs_block_alloc_stats2(fs, block, +1);
1561         return 0;
1562 }
1563
1564 void do_undel(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1565               void *infop EXT2FS_ATTR((unused)))
1566 {
1567         ext2_ino_t      ino;
1568         struct ext2_inode inode;
1569
1570         if (common_args_process(argc, argv, 2, 3, "undelete",
1571                                 "<inode_num> [dest_name]",
1572                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1573                 return;
1574
1575         ino = string_to_inode(argv[1]);
1576         if (!ino)
1577                 return;
1578
1579         if (debugfs_read_inode(ino, &inode, argv[1]))
1580                 return;
1581
1582         if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
1583                 com_err(argv[1], 0, "Inode is not marked as deleted");
1584                 return;
1585         }
1586
1587         /*
1588          * XXX this function doesn't handle changing the links count on the
1589          * parent directory when undeleting a directory.
1590          */
1591         inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1592         inode.i_dtime = 0;
1593
1594         if (debugfs_write_inode(ino, &inode, argv[0]))
1595                 return;
1596
1597         ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1598                               mark_blocks_proc, NULL);
1599
1600         ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1601
1602         if (argc > 2)
1603                 make_link(argv[1], argv[2]);
1604 }
1605
1606 static void unlink_file_by_name(char *filename)
1607 {
1608         int             retval;
1609         ext2_ino_t      dir;
1610         char            *base_name;
1611
1612         base_name = strrchr(filename, '/');
1613         if (base_name) {
1614                 *base_name++ = '\0';
1615                 dir = string_to_inode(filename);
1616                 if (!dir)
1617                         return;
1618         } else {
1619                 dir = cwd;
1620                 base_name = filename;
1621         }
1622         retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1623         if (retval)
1624                 com_err("unlink_file_by_name", retval, 0);
1625         return;
1626 }
1627
1628 void do_unlink(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1629                void *infop EXT2FS_ATTR((unused)))
1630 {
1631         if (common_args_process(argc, argv, 2, 2, "link",
1632                                 "<pathname>", CHECK_FS_RW))
1633                 return;
1634
1635         unlink_file_by_name(argv[1]);
1636 }
1637
1638 void do_copy_inode(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1639                    void *infop EXT2FS_ATTR((unused)))
1640 {
1641         ext2_ino_t      src_ino, dest_ino;
1642         unsigned char   buf[4096];
1643
1644         if (common_args_process(argc, argv, 3, 3, "copy_inode",
1645                                 "<source file> <dest_name>", CHECK_FS_RW))
1646                 return;
1647
1648         src_ino = string_to_inode(argv[1]);
1649         if (!src_ino)
1650                 return;
1651
1652         dest_ino = string_to_inode(argv[2]);
1653         if (!dest_ino)
1654                 return;
1655
1656         if (debugfs_read_inode2(src_ino, (struct ext2_inode *) buf,
1657                                 argv[0], sizeof(buf), 0))
1658                 return;
1659
1660         if (debugfs_write_inode2(dest_ino, (struct ext2_inode *) buf,
1661                                  argv[0], sizeof(buf), 0))
1662                 return;
1663 }
1664
1665 #endif /* READ_ONLY */
1666
1667 void do_find_free_block(int argc, char *argv[],
1668                         int sci_idx EXT2FS_ATTR((unused)),
1669                         void *infop EXT2FS_ATTR((unused)))
1670 {
1671         blk64_t free_blk, goal, first_free = 0;
1672         int             count;
1673         errcode_t       retval;
1674         char            *tmp;
1675
1676         if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1677                 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1678                 return;
1679         }
1680         if (check_fs_open(argv[0]))
1681                 return;
1682
1683         if (argc > 1) {
1684                 count = strtol(argv[1],&tmp,0);
1685                 if (*tmp) {
1686                         com_err(argv[0], 0, "Bad count - %s", argv[1]);
1687                         return;
1688                 }
1689         } else
1690                 count = 1;
1691
1692         if (argc > 2) {
1693                 goal = strtol(argv[2], &tmp, 0);
1694                 if (*tmp) {
1695                         com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1696                         return;
1697                 }
1698         }
1699         else
1700                 goal = current_fs->super->s_first_data_block;
1701
1702         printf("Free blocks found: ");
1703         free_blk = goal - 1;
1704         while (count-- > 0) {
1705                 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
1706                                            &free_blk);
1707                 if (first_free) {
1708                         if (first_free == free_blk)
1709                                 break;
1710                 } else
1711                         first_free = free_blk;
1712                 if (retval) {
1713                         com_err("ext2fs_new_block", retval, 0);
1714                         return;
1715                 } else
1716                         printf("%llu ", (unsigned long long) free_blk);
1717         }
1718         printf("\n");
1719 }
1720
1721 void do_find_free_inode(int argc, char *argv[],
1722                         int sci_idx EXT2FS_ATTR((unused)),
1723                         void *infop EXT2FS_ATTR((unused)))
1724 {
1725         ext2_ino_t      free_inode, dir;
1726         int             mode;
1727         int             retval;
1728         char            *tmp;
1729
1730         if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1731                 com_err(argv[0], 0, "Usage: find_free_inode [dir [mode]]");
1732                 return;
1733         }
1734         if (check_fs_open(argv[0]))
1735                 return;
1736
1737         if (argc > 1) {
1738                 dir = strtol(argv[1], &tmp, 0);
1739                 if (*tmp) {
1740                         com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1741                         return;
1742                 }
1743         }
1744         else
1745                 dir = root;
1746         if (argc > 2) {
1747                 mode = strtol(argv[2], &tmp, 0);
1748                 if (*tmp) {
1749                         com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1750                         return;
1751                 }
1752         } else
1753                 mode = 010755;
1754
1755         retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1756         if (retval)
1757                 com_err("ext2fs_new_inode", retval, 0);
1758         else
1759                 printf("Free inode found: %u\n", free_inode);
1760 }
1761
1762 #ifndef READ_ONLY
1763 void do_write(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1764               void *infop EXT2FS_ATTR((unused)))
1765 {
1766         errcode_t       retval;
1767
1768         if (common_args_process(argc, argv, 3, 3, "write",
1769                                 "<native file> <new file>", CHECK_FS_RW))
1770                 return;
1771
1772         retval = do_write_internal(current_fs, cwd, argv[1], argv[2], root);
1773         if (retval)
1774                 com_err(argv[0], retval, 0);
1775 }
1776
1777 void do_mknod(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1778               void *infop EXT2FS_ATTR((unused)))
1779 {
1780         unsigned long   major, minor;
1781         errcode_t       retval;
1782         int             nr;
1783         struct stat     st;
1784
1785         if (check_fs_open(argv[0]))
1786                 return;
1787         if (argc < 3 || argv[2][1]) {
1788         usage:
1789                 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1790                 return;
1791         }
1792
1793         minor = major = 0;
1794         switch (argv[2][0]) {
1795                 case 'p':
1796                         st.st_mode = S_IFIFO;
1797                         nr = 3;
1798                         break;
1799                 case 'c':
1800                         st.st_mode = S_IFCHR;
1801                         nr = 5;
1802                         break;
1803                 case 'b':
1804                         st.st_mode = S_IFBLK;
1805                         nr = 5;
1806                         break;
1807                 default:
1808                         nr = 0;
1809         }
1810
1811         if (nr == 5) {
1812                 major = strtoul(argv[3], argv+3, 0);
1813                 minor = strtoul(argv[4], argv+4, 0);
1814                 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1815                         nr = 0;
1816         }
1817
1818         if (argc != nr)
1819                 goto usage;
1820
1821         st.st_rdev = makedev(major, minor);
1822         retval = do_mknod_internal(current_fs, cwd, argv[1],
1823                                    st.st_mode, st.st_rdev);
1824         if (retval)
1825                 com_err(argv[0], retval, 0);
1826 }
1827
1828 void do_mkdir(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1829               void *infop EXT2FS_ATTR((unused)))
1830 {
1831         errcode_t retval;
1832
1833         if (common_args_process(argc, argv, 2, 2, "mkdir",
1834                                 "<filename>", CHECK_FS_RW))
1835                 return;
1836
1837         retval = do_mkdir_internal(current_fs, cwd, argv[1], root);
1838         if (retval)
1839                 com_err(argv[0], retval, 0);
1840
1841 }
1842
1843 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1844                                e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1845                                blk64_t ref_block EXT2FS_ATTR((unused)),
1846                                int ref_offset EXT2FS_ATTR((unused)),
1847                                void *private)
1848 {
1849         blk64_t block = *blocknr;
1850         blk64_t *last_cluster = (blk64_t *)private;
1851         blk64_t cluster = EXT2FS_B2C(fs, block);
1852
1853         if (cluster == *last_cluster)
1854                 return 0;
1855
1856         *last_cluster = cluster;
1857
1858         ext2fs_block_alloc_stats2(fs, block, -1);
1859         return 0;
1860 }
1861
1862 static void kill_file_by_inode(ext2_ino_t inode)
1863 {
1864         struct ext2_inode inode_buf;
1865
1866         if (debugfs_read_inode(inode, &inode_buf, 0))
1867                 return;
1868         inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1869         if (debugfs_write_inode(inode, &inode_buf, 0))
1870                 return;
1871         if (ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf)) {
1872                 blk64_t last_cluster = 0;
1873                 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY,
1874                                       NULL, release_blocks_proc, &last_cluster);
1875         }
1876         printf("\n");
1877         ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1878                                   LINUX_S_ISDIR(inode_buf.i_mode));
1879 }
1880
1881
1882 void do_kill_file(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1883                   void *infop EXT2FS_ATTR((unused)))
1884 {
1885         ext2_ino_t inode_num;
1886
1887         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1888                 return;
1889
1890         kill_file_by_inode(inode_num);
1891 }
1892
1893 void do_rm(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1894            void *infop EXT2FS_ATTR((unused)))
1895 {
1896         int retval;
1897         ext2_ino_t inode_num;
1898         struct ext2_inode inode;
1899
1900         if (common_args_process(argc, argv, 2, 2, "rm",
1901                                 "<filename>", CHECK_FS_RW))
1902                 return;
1903
1904         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1905         if (retval) {
1906                 com_err(argv[0], retval, "while trying to resolve filename");
1907                 return;
1908         }
1909
1910         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1911                 return;
1912
1913         if (LINUX_S_ISDIR(inode.i_mode)) {
1914                 com_err(argv[0], 0, "file is a directory");
1915                 return;
1916         }
1917
1918         --inode.i_links_count;
1919         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1920                 return;
1921
1922         unlink_file_by_name(argv[1]);
1923         if (inode.i_links_count == 0)
1924                 kill_file_by_inode(inode_num);
1925 }
1926
1927 struct rd_struct {
1928         ext2_ino_t      parent;
1929         int             empty;
1930 };
1931
1932 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1933                       int       entry EXT2FS_ATTR((unused)),
1934                       struct ext2_dir_entry *dirent,
1935                       int       offset EXT2FS_ATTR((unused)),
1936                       int       blocksize EXT2FS_ATTR((unused)),
1937                       char      *buf EXT2FS_ATTR((unused)),
1938                       void      *private)
1939 {
1940         struct rd_struct *rds = (struct rd_struct *) private;
1941
1942         if (dirent->inode == 0)
1943                 return 0;
1944         if ((ext2fs_dirent_name_len(dirent) == 1) && (dirent->name[0] == '.'))
1945                 return 0;
1946         if ((ext2fs_dirent_name_len(dirent) == 2) && (dirent->name[0] == '.') &&
1947             (dirent->name[1] == '.')) {
1948                 rds->parent = dirent->inode;
1949                 return 0;
1950         }
1951         rds->empty = 0;
1952         return 0;
1953 }
1954
1955 void do_rmdir(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1956               void *infop EXT2FS_ATTR((unused)))
1957 {
1958         int retval;
1959         ext2_ino_t inode_num;
1960         struct ext2_inode inode;
1961         struct rd_struct rds;
1962
1963         if (common_args_process(argc, argv, 2, 2, "rmdir",
1964                                 "<filename>", CHECK_FS_RW))
1965                 return;
1966
1967         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1968         if (retval) {
1969                 com_err(argv[0], retval, "while trying to resolve filename");
1970                 return;
1971         }
1972
1973         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1974                 return;
1975
1976         if (!LINUX_S_ISDIR(inode.i_mode)) {
1977                 com_err(argv[0], 0, "file is not a directory");
1978                 return;
1979         }
1980
1981         rds.parent = 0;
1982         rds.empty = 1;
1983
1984         retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1985                                     0, rmdir_proc, &rds);
1986         if (retval) {
1987                 com_err(argv[0], retval, "while iterating over directory");
1988                 return;
1989         }
1990         if (rds.empty == 0) {
1991                 com_err(argv[0], 0, "directory not empty");
1992                 return;
1993         }
1994
1995         inode.i_links_count = 0;
1996         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1997                 return;
1998
1999         unlink_file_by_name(argv[1]);
2000         kill_file_by_inode(inode_num);
2001
2002         if (rds.parent) {
2003                 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
2004                         return;
2005                 if (inode.i_links_count > 1)
2006                         inode.i_links_count--;
2007                 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
2008                         return;
2009         }
2010 }
2011 #endif /* READ_ONLY */
2012
2013 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
2014                             char *argv[] EXT2FS_ATTR((unused)),
2015                             int sci_idx EXT2FS_ATTR((unused)),
2016                             void *infop EXT2FS_ATTR((unused)))
2017 {
2018         if (current_fs)
2019                 printf("Open mode: read-%s\n",
2020                        current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
2021         printf("Filesystem in use: %s\n",
2022                current_fs ? current_fs->device_name : "--none--");
2023 }
2024
2025 #ifndef READ_ONLY
2026 void do_expand_dir(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2027                     void *infop EXT2FS_ATTR((unused)))
2028 {
2029         ext2_ino_t inode;
2030         int retval;
2031
2032         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
2033                 return;
2034
2035         retval = ext2fs_expand_dir(current_fs, inode);
2036         if (retval)
2037                 com_err("ext2fs_expand_dir", retval, 0);
2038         return;
2039 }
2040
2041 void do_features(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2042                  void *infop EXT2FS_ATTR((unused)))
2043 {
2044         int     i;
2045
2046         if (check_fs_open(argv[0]))
2047                 return;
2048
2049         if ((argc != 1) && check_fs_read_write(argv[0]))
2050                 return;
2051         for (i=1; i < argc; i++) {
2052                 if (e2p_edit_feature(argv[i],
2053                                      &current_fs->super->s_feature_compat, 0))
2054                         com_err(argv[0], 0, "Unknown feature: %s\n",
2055                                 argv[i]);
2056                 else
2057                         ext2fs_mark_super_dirty(current_fs);
2058         }
2059         print_features(current_fs->super, stdout);
2060 }
2061 #endif /* READ_ONLY */
2062
2063 void do_bmap(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2064              void *infop EXT2FS_ATTR((unused)))
2065 {
2066         ext2_ino_t      ino;
2067         blk64_t         blk, pblk = 0;
2068         int             c, err, flags = 0, ret_flags = 0;
2069         errcode_t       errcode;
2070
2071         if (check_fs_open(argv[0]))
2072                 return;
2073
2074         reset_getopt();
2075         while ((c = getopt (argc, argv, "a")) != EOF) {
2076                 switch (c) {
2077                 case 'a':
2078                         flags |= BMAP_ALLOC;
2079                         break;
2080                 default:
2081                         goto print_usage;
2082                 }
2083         }
2084
2085         if (argc <= optind+1) {
2086         print_usage:
2087                 com_err(0, 0,
2088                         "Usage: bmap [-a] <file> logical_blk [physical_blk]");
2089                 return;
2090         }
2091
2092         ino = string_to_inode(argv[optind++]);
2093         if (!ino)
2094                 return;
2095         err = strtoblk(argv[0], argv[optind++], "logical block", &blk);
2096         if (err)
2097                 return;
2098
2099         if (argc > optind+1)
2100                 goto print_usage;
2101
2102         if (argc == optind+1) {
2103                 err = strtoblk(argv[0], argv[optind++],
2104                                "physical block", &pblk);
2105                 if (err)
2106                         return;
2107                 if (flags & BMAP_ALLOC) {
2108                         com_err(0, 0, "Can't set and allocate a block");
2109                         return;
2110                 }
2111                 flags |= BMAP_SET;
2112         }
2113
2114         errcode = ext2fs_bmap2(current_fs, ino, 0, 0, flags, blk,
2115                                &ret_flags, &pblk);
2116         if (errcode) {
2117                 com_err(argv[0], errcode,
2118                         "while mapping logical block %llu\n",
2119                         (unsigned long long) blk);
2120                 return;
2121         }
2122         printf("%llu", (unsigned long long) pblk);
2123         if (ret_flags & BMAP_RET_UNINIT)
2124                 fputs(" (uninit)", stdout);
2125         fputc('\n', stdout);
2126 }
2127
2128 void do_imap(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2129              void *infop EXT2FS_ATTR((unused)))
2130 {
2131         ext2_ino_t      ino;
2132         unsigned long   group, block, block_nr, offset;
2133
2134         if (common_args_process(argc, argv, 2, 2, argv[0],
2135                                 "<file>", 0))
2136                 return;
2137         ino = string_to_inode(argv[1]);
2138         if (!ino)
2139                 return;
2140
2141         group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
2142         offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
2143                 EXT2_INODE_SIZE(current_fs->super);
2144         block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
2145         if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
2146                 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
2147                         group);
2148                 return;
2149         }
2150         block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
2151                 block;
2152         offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
2153
2154         printf("Inode %u is part of block group %lu\n"
2155                "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
2156                block_nr, offset);
2157
2158 }
2159
2160 void do_idump(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2161               void *infop EXT2FS_ATTR((unused)))
2162 {
2163         struct ext2_inode_large *inode;
2164         ext2_ino_t      ino;
2165         unsigned char   *buf;
2166         errcode_t       err;
2167         unsigned int    isize, size, offset = 0;
2168         int             c, mode = 0;
2169
2170         reset_getopt();
2171         while ((c = getopt (argc, argv, "bex")) != EOF) {
2172                 if (mode || c == '?') {
2173                         com_err(argv[0], 0,
2174                                 "Usage: inode_dump [-b]|[-e] <file>");
2175                         return;
2176                 }
2177                 mode = c;
2178         }
2179         if (optind != argc-1)
2180                 return;
2181
2182         if (check_fs_open(argv[0]))
2183                 return;
2184
2185         ino = string_to_inode(argv[optind]);
2186         if (!ino)
2187                 return;
2188
2189         isize = EXT2_INODE_SIZE(current_fs->super);
2190         err = ext2fs_get_mem(isize, &buf);
2191         if (err) {
2192                 com_err(argv[0], err, "while allocating memory");
2193                 return;
2194         }
2195
2196         err = ext2fs_read_inode_full(current_fs, ino,
2197                                      (struct ext2_inode *)buf, isize);
2198         if (err) {
2199                 com_err(argv[0], err, "while reading inode %u", ino);
2200                 goto err;
2201         }
2202
2203         inode = (struct ext2_inode_large *) buf;
2204         size = isize;
2205         switch (mode) {
2206         case 'b':
2207                 offset = ((char *) (&inode->i_block)) - ((char *) buf);
2208                 size = sizeof(inode->i_block);
2209                 break;
2210         case 'x':
2211         case 'e':
2212                 if (size <= EXT2_GOOD_OLD_INODE_SIZE) {
2213                         com_err(argv[0], 0, "No extra space in inode");
2214                         goto err;
2215                 }
2216                 offset = EXT2_GOOD_OLD_INODE_SIZE + inode->i_extra_isize;
2217                 if (offset > size)
2218                         goto err;
2219                 size -= offset;
2220                 break;
2221         }
2222         if (mode == 'x')
2223                 raw_inode_xattr_dump(stdout, buf + offset, size);
2224         else
2225                 do_byte_hexdump(stdout, buf + offset, size);
2226 err:
2227         ext2fs_free_mem(&buf);
2228 }
2229
2230 #ifndef READ_ONLY
2231 void do_set_current_time(int argc, char *argv[],
2232                          int sci_idx EXT2FS_ATTR((unused)),
2233                          void *infop EXT2FS_ATTR((unused)))
2234 {
2235         __s64 now;
2236
2237         if (common_args_process(argc, argv, 2, 2, argv[0],
2238                                 "<time>", 0))
2239                 return;
2240
2241         now = string_to_time(argv[1]);
2242         if (now == -1) {
2243                 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
2244                         argv[1]);
2245                 return;
2246
2247         } else {
2248                 printf("Setting current time to %s\n", time_to_string(now));
2249                 current_fs->now = now;
2250         }
2251 }
2252 #endif /* READ_ONLY */
2253
2254 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
2255 {
2256         int compat, bit, ret;
2257         unsigned int feature_mask;
2258
2259         if (name) {
2260                 if (feature_type == E2P_FS_FEATURE)
2261                         ret = e2p_string2feature(name, &compat, &feature_mask);
2262                 else
2263                         ret = e2p_jrnl_string2feature(name, &compat,
2264                                                       &feature_mask);
2265                 if (ret)
2266                         return ret;
2267
2268                 if (!(supp[compat] & feature_mask))
2269                         return 1;
2270         } else {
2271                 for (compat = 0; compat < 3; compat++) {
2272                         for (bit = 0, feature_mask = 1; bit < 32;
2273                              bit++, feature_mask <<= 1) {
2274                                 if (supp[compat] & feature_mask) {
2275                                         if (feature_type == E2P_FS_FEATURE)
2276                                                 fprintf(stdout, " %s",
2277                                                 e2p_feature2string(compat,
2278                                                 feature_mask));
2279                                         else
2280                                                 fprintf(stdout, " %s",
2281                                                 e2p_jrnl_feature2string(compat,
2282                                                 feature_mask));
2283                                 }
2284                         }
2285                 }
2286                 fprintf(stdout, "\n");
2287         }
2288
2289         return 0;
2290 }
2291
2292 void do_supported_features(int argc, char *argv[],
2293                            int sci_idx EXT2FS_ATTR((unused)),
2294                            void *infop EXT2FS_ATTR((unused)))
2295 {
2296         int     ret;
2297         __u32   supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2298                             EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2299                             EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2300         __u32   jrnl_supp[3] = { JBD2_KNOWN_COMPAT_FEATURES,
2301                                  JBD2_KNOWN_INCOMPAT_FEATURES,
2302                                  JBD2_KNOWN_ROCOMPAT_FEATURES };
2303
2304         if (argc > 1) {
2305                 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2306                 if (ret) {
2307                         ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2308                                                 argv[1]);
2309                 }
2310                 if (ret)
2311                         com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2312                 else
2313                         fprintf(stdout, "Supported feature: %s\n", argv[1]);
2314         } else {
2315                 fprintf(stdout, "Supported features:");
2316                 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2317                 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2318         }
2319 }
2320
2321 #ifndef READ_ONLY
2322 void do_punch(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2323               void *infop EXT2FS_ATTR((unused)))
2324 {
2325         ext2_ino_t      ino;
2326         blk64_t         start, end;
2327         int             err;
2328         errcode_t       errcode;
2329
2330         if (common_args_process(argc, argv, 3, 4, argv[0],
2331                                 "<file> start_blk [end_blk]",
2332                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
2333                 return;
2334
2335         ino = string_to_inode(argv[1]);
2336         if (!ino)
2337                 return;
2338         err = strtoblk(argv[0], argv[2], "logical block", &start);
2339         if (err)
2340                 return;
2341         if (argc == 4) {
2342                 err = strtoblk(argv[0], argv[3], "logical block", &end);
2343                 if (err)
2344                         return;
2345         } else
2346                 end = ~0;
2347
2348         errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
2349
2350         if (errcode) {
2351                 com_err(argv[0], errcode,
2352                         "while truncating inode %u from %llu to %llu\n", ino,
2353                         (unsigned long long) start, (unsigned long long) end);
2354                 return;
2355         }
2356 }
2357
2358 void do_fallocate(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2359                   void *infop EXT2FS_ATTR((unused)))
2360 {
2361         ext2_ino_t      ino;
2362         blk64_t         start, end;
2363         int             err;
2364         errcode_t       errcode;
2365
2366         if (common_args_process(argc, argv, 3, 4, argv[0],
2367                                 "<file> start_blk [end_blk]",
2368                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
2369                 return;
2370
2371         ino = string_to_inode(argv[1]);
2372         if (!ino)
2373                 return;
2374         err = strtoblk(argv[0], argv[2], "logical block", &start);
2375         if (err)
2376                 return;
2377         if (argc == 4) {
2378                 err = strtoblk(argv[0], argv[3], "logical block", &end);
2379                 if (err)
2380                         return;
2381         } else
2382                 end = ~0;
2383
2384         errcode = ext2fs_fallocate(current_fs, EXT2_FALLOCATE_INIT_BEYOND_EOF,
2385                                    ino, NULL, ~0ULL, start, end - start + 1);
2386
2387         if (errcode) {
2388                 com_err(argv[0], errcode,
2389                         "while fallocating inode %u from %llu to %llu\n", ino,
2390                         (unsigned long long) start, (unsigned long long) end);
2391                 return;
2392         }
2393 }
2394
2395 void do_symlink(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2396                 void *infop EXT2FS_ATTR((unused)))
2397 {
2398         errcode_t       retval;
2399
2400         if (common_args_process(argc, argv, 3, 3, "symlink",
2401                                 "<filename> <target>", CHECK_FS_RW))
2402                 return;
2403
2404         retval = do_symlink_internal(current_fs, cwd, argv[1], argv[2], root);
2405         if (retval)
2406                 com_err(argv[0], retval, 0);
2407
2408 }
2409 #endif /* READ_ONLY */
2410
2411 #if CONFIG_MMP
2412 void do_dump_mmp(int argc EXT2FS_ATTR((unused)), char *argv[],
2413                  int sci_idx EXT2FS_ATTR((unused)),
2414                  void *infop EXT2FS_ATTR((unused)))
2415 {
2416         struct mmp_struct *mmp_s;
2417         unsigned long long mmp_block;
2418         time_t t;
2419         errcode_t retval = 0;
2420
2421         if (check_fs_open(argv[0]))
2422                 return;
2423
2424         if (argc > 1) {
2425                 char *end = NULL;
2426                 mmp_block = strtoull(argv[1], &end, 0);
2427                 if (end == argv[0] || mmp_block == 0) {
2428                         fprintf(stderr, "%s: invalid MMP block '%s' given\n",
2429                                 argv[0], argv[1]);
2430                         return;
2431                 }
2432         } else {
2433                 mmp_block = current_fs->super->s_mmp_block;
2434         }
2435
2436         if (mmp_block == 0) {
2437                 fprintf(stderr, "%s: MMP: not active on this filesystem.\n",
2438                         argv[0]);
2439                 return;
2440         }
2441
2442         if (current_fs->mmp_buf == NULL) {
2443                 retval = ext2fs_get_mem(current_fs->blocksize,
2444                                         &current_fs->mmp_buf);
2445                 if (retval) {
2446                         com_err(argv[0], retval, "allocating MMP buffer.\n");
2447                         return;
2448                 }
2449         }
2450
2451         mmp_s = current_fs->mmp_buf;
2452
2453         retval = ext2fs_mmp_read(current_fs, mmp_block, current_fs->mmp_buf);
2454         if (retval) {
2455                 com_err(argv[0], retval, "reading MMP block %llu.\n",
2456                         (unsigned long long) mmp_block);
2457                 return;
2458         }
2459
2460         t = mmp_s->mmp_time;
2461         fprintf(stdout, "block_number: %llu\n",
2462                 (unsigned long long) current_fs->super->s_mmp_block);
2463         fprintf(stdout, "update_interval: %d\n",
2464                 current_fs->super->s_mmp_update_interval);
2465         fprintf(stdout, "check_interval: %d\n", mmp_s->mmp_check_interval);
2466         fprintf(stdout, "sequence: %08x\n", mmp_s->mmp_seq);
2467         fprintf(stdout, "time: %llu -- %s",
2468                 (unsigned long long) mmp_s->mmp_time, ctime(&t));
2469         fprintf(stdout, "node_name: %.*s\n",
2470                 EXT2_LEN_STR(mmp_s->mmp_nodename));
2471         fprintf(stdout, "device_name: %.*s\n",
2472                 EXT2_LEN_STR(mmp_s->mmp_bdevname));
2473         fprintf(stdout, "magic: 0x%x\n", mmp_s->mmp_magic);
2474         fprintf(stdout, "checksum: 0x%08x\n", mmp_s->mmp_checksum);
2475 }
2476 #else
2477 void do_dump_mmp(int argc EXT2FS_ATTR((unused)),
2478                  char *argv[] EXT2FS_ATTR((unused)),
2479                  int sci_idx EXT2FS_ATTR((unused)),
2480                  void *infop EXT2FS_ATTR((unused)))
2481 {
2482         fprintf(stdout, "MMP is unsupported, please recompile with "
2483                         "--enable-mmp\n");
2484 }
2485 #endif
2486
2487 static int source_file(const char *cmd_file, int ss_idx)
2488 {
2489         FILE            *f;
2490         char            buf[BUFSIZ];
2491         char            *cp;
2492         int             exit_status = 0;
2493         int             retval;
2494
2495         if (strcmp(cmd_file, "-") == 0)
2496                 f = stdin;
2497         else {
2498                 f = fopen(cmd_file, "r");
2499                 if (!f) {
2500                         perror(cmd_file);
2501                         exit(1);
2502                 }
2503         }
2504         fflush(stdout);
2505         fflush(stderr);
2506         setbuf(stdout, NULL);
2507         setbuf(stderr, NULL);
2508         while (!feof(f)) {
2509                 if (fgets(buf, sizeof(buf), f) == NULL)
2510                         break;
2511                 if (buf[0] == '#') {
2512                         printf("%s", buf);
2513                         continue;
2514                 }
2515                 cp = strchr(buf, '\n');
2516                 if (cp)
2517                         *cp = 0;
2518                 cp = strchr(buf, '\r');
2519                 if (cp)
2520                         *cp = 0;
2521                 printf("debugfs: %s\n", buf);
2522                 retval = ss_execute_line(ss_idx, buf);
2523                 if (retval) {
2524                         ss_perror(ss_idx, retval, buf);
2525                         exit_status++;
2526                 }
2527         }
2528         if (f != stdin)
2529                 fclose(f);
2530         return exit_status;
2531 }
2532
2533 int main(int argc, char **argv)
2534 {
2535         int             retval;
2536         const char      *usage =
2537                 "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] "
2538                 "[-R request] [-d data_source_device] [-i] [-n] [-D] [-V] ["
2539 #ifndef READ_ONLY
2540                 "[-w] [-z undo_file] "
2541 #endif
2542                 "[-c]] [device]";
2543         int             c;
2544         int             open_flags = EXT2_FLAG_SOFTSUPP_FEATURES |
2545                                 EXT2_FLAG_64BITS | EXT2_FLAG_THREADS;
2546         char            *request = 0;
2547         int             exit_status = 0;
2548         char            *cmd_file = 0;
2549         blk64_t         superblock = 0;
2550         blk64_t         blocksize = 0;
2551         int             catastrophic = 0;
2552         char            *data_filename = 0;
2553 #ifdef READ_ONLY
2554         const char      *opt_string = "nicR:f:b:s:Vd:D";
2555 #else
2556         const char      *opt_string = "niwcR:f:b:s:Vd:Dz:";
2557 #endif
2558         char            *undo_file = NULL;
2559 #ifdef CONFIG_JBD_DEBUG
2560         char            *jbd_debug;
2561 #endif
2562
2563         if (debug_prog_name == 0)
2564 #ifdef READ_ONLY
2565                 debug_prog_name = "rdebugfs";
2566 #else
2567                 debug_prog_name = "debugfs";
2568 #endif
2569         add_error_table(&et_ext2_error_table);
2570         fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2571                  E2FSPROGS_VERSION, E2FSPROGS_DATE);
2572
2573 #ifdef CONFIG_JBD_DEBUG
2574         jbd_debug = ss_safe_getenv("DEBUGFS_JBD_DEBUG");
2575         if (jbd_debug) {
2576                 int res = sscanf(jbd_debug, "%d", &journal_enable_debug);
2577
2578                 if (res != 1) {
2579                         fprintf(stderr,
2580                                 "DEBUGFS_JBD_DEBUG \"%s\" not an integer\n\n",
2581                                 jbd_debug);
2582                         exit(1);
2583                 }
2584         }
2585 #endif
2586         while ((c = getopt (argc, argv, opt_string)) != EOF) {
2587                 switch (c) {
2588                 case 'R':
2589                         request = optarg;
2590                         break;
2591                 case 'f':
2592                         cmd_file = optarg;
2593                         break;
2594                 case 'd':
2595                         data_filename = optarg;
2596                         break;
2597                 case 'i':
2598                         open_flags |= EXT2_FLAG_IMAGE_FILE;
2599                         break;
2600                 case 'n':
2601                         open_flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
2602                         break;
2603 #ifndef READ_ONLY
2604                 case 'w':
2605                         open_flags |= EXT2_FLAG_RW;
2606                         break;
2607 #endif
2608                 case 'D':
2609                         open_flags |= EXT2_FLAG_DIRECT_IO;
2610                         break;
2611                 case 'b':
2612                         blocksize = parse_ulong(optarg, argv[0],
2613                                                 "block size", 0);
2614                         break;
2615                 case 's':
2616                         retval = strtoblk(argv[0], optarg,
2617                                           "superblock block number",
2618                                           &superblock);
2619                         if (retval)
2620                                 return 1;
2621                         break;
2622                 case 'c':
2623                         catastrophic = 1;
2624                         break;
2625                 case 'V':
2626                         /* Print version number and exit */
2627                         fprintf(stderr, "\tUsing %s\n",
2628                                 error_message(EXT2_ET_BASE));
2629                         exit(0);
2630 #ifndef READ_ONLY
2631                 case 'z':
2632                         undo_file = optarg;
2633                         break;
2634 #endif
2635                 default:
2636                         com_err(argv[0], 0, usage, debug_prog_name);
2637                         return 1;
2638                 }
2639         }
2640         if (optind < argc)
2641                 open_filesystem(argv[optind], open_flags,
2642                                 superblock, blocksize, catastrophic,
2643                                 data_filename, undo_file);
2644
2645         ss_sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2646                                           &debug_cmds, &retval);
2647         if (retval) {
2648                 ss_perror(ss_sci_idx, retval, "creating invocation");
2649                 exit(1);
2650         }
2651         ss_get_readline(ss_sci_idx);
2652
2653         (void) ss_add_request_table(ss_sci_idx, &ss_std_requests, 1, &retval);
2654         if (retval) {
2655                 ss_perror(ss_sci_idx, retval, "adding standard requests");
2656                 exit (1);
2657         }
2658         if (extra_cmds)
2659                 ss_add_request_table(ss_sci_idx, extra_cmds, 1, &retval);
2660         if (retval) {
2661                 ss_perror(ss_sci_idx, retval, "adding extra requests");
2662                 exit (1);
2663         }
2664         if (request) {
2665                 retval = 0;
2666                 retval = ss_execute_line(ss_sci_idx, request);
2667                 if (retval) {
2668                         ss_perror(ss_sci_idx, retval, request);
2669                         exit_status++;
2670                 }
2671         } else if (cmd_file) {
2672                 exit_status = source_file(cmd_file, ss_sci_idx);
2673         } else {
2674                 ss_listen(ss_sci_idx);
2675         }
2676
2677         ss_delete_invocation(ss_sci_idx);
2678
2679         if (current_fs)
2680                 close_filesystem();
2681
2682         remove_error_table(&et_ext2_error_table);
2683         return exit_status;
2684 }