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 ss_request_table *extra_cmds;
  52 const char *debug_prog_name;
  53 int ss_sci_idx;
  54
  55 ext2_filsys     current_fs;
  56 quota_ctx_t     current_qctx;
  57 ext2_ino_t      root, cwd;
  58 int             no_copy_xattrs;
  59
  60 static int debugfs_setup_tdb(const char *device_name, char *undo_file,
  61                              io_manager *io_ptr)
  62 {
  63         errcode_t retval = ENOMEM;
  64         const char      *tdb_dir = NULL;
  65         char            *tdb_file = NULL;
  66         char            *dev_name, *tmp_name;
  67
  68         /* (re)open a specific undo file */
  69         if (undo_file && undo_file[0] != 0) {
  70                 retval = set_undo_io_backing_manager(*io_ptr);
  71                 if (retval)
  72                         goto err;
  73                 *io_ptr = undo_io_manager;
  74                 retval = set_undo_io_backup_file(undo_file);
  75                 if (retval)
  76                         goto err;
  77                 printf("Overwriting existing filesystem; this can be undone "
  78                         "using the command:\n"
  79                         "    e2undo %s %s\n\n",
  80                         undo_file, device_name);
  81                 return retval;
  82         }
  83
  84         /*
  85          * Configuration via a conf file would be
  86          * nice
  87          */
  88         tdb_dir = ss_safe_getenv("E2FSPROGS_UNDO_DIR");
  89         if (!tdb_dir)
  90                 tdb_dir = "/var/lib/e2fsprogs";
  91
  92         if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
  93             access(tdb_dir, W_OK))
  94                 return 0;
  95
  96         tmp_name = strdup(device_name);
  97         if (!tmp_name)
  98                 goto errout;
  99         dev_name = basename(tmp_name);
 100         tdb_file = malloc(strlen(tdb_dir) + 9 + strlen(dev_name) + 7 + 1);
 101         if (!tdb_file) {
 102                 free(tmp_name);
 103                 goto errout;
 104         }
 105         sprintf(tdb_file, "%s/debugfs-%s.e2undo", tdb_dir, dev_name);
 106         free(tmp_name);
 107
 108         if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
 109                 retval = errno;
 110                 com_err("debugfs", retval,
 111                         "while trying to delete %s", tdb_file);
 112                 goto errout;
 113         }
 114
 115         retval = set_undo_io_backing_manager(*io_ptr);
 116         if (retval)
 117                 goto errout;
 118         *io_ptr = undo_io_manager;
 119         retval = set_undo_io_backup_file(tdb_file);
 120         if (retval)
 121                 goto errout;
 122         printf("Overwriting existing filesystem; this can be undone "
 123                 "using the command:\n"
 124                 "    e2undo %s %s\n\n", tdb_file, device_name);
 125
 126         free(tdb_file);
 127         return 0;
 128 errout:
 129         free(tdb_file);
 130 err:
 131         com_err("debugfs", retval, "while trying to setup undo file\n");
 132         return retval;
 133 }
 134
 135 static void open_filesystem(char *device, int open_flags, blk64_t superblock,
 136                             blk64_t blocksize, int catastrophic,
 137                             char *data_filename, char *undo_file)
 138 {
 139         int     retval;
 140         io_channel data_io = 0;
 141         io_manager io_ptr = unix_io_manager;
 142
 143         if (superblock != 0 && blocksize == 0) {
 144                 com_err(device, 0, "if you specify the superblock, you must also specify the block size");
 145                 current_fs = NULL;
 146                 return;
 147         }
 148
 149         if (data_filename) {
 150                 if ((open_flags & EXT2_FLAG_IMAGE_FILE) == 0) {
 151                         com_err(device, 0,
 152                                 "The -d option is only valid when reading an e2image file");
 153                         current_fs = NULL;
 154                         return;
 155                 }
 156                 retval = unix_io_manager->open(data_filename, 0, &data_io);
 157                 if (retval) {
 158                         com_err(data_filename, 0, "while opening data source");
 159                         current_fs = NULL;
 160                         return;
 161                 }
 162         }
 163
 164         if (catastrophic)
 165                 open_flags |= EXT2_FLAG_SKIP_MMP | EXT2_FLAG_IGNORE_SB_ERRORS;
 166
 167         if (undo_file) {
 168                 retval = debugfs_setup_tdb(device, undo_file, &io_ptr);
 169                 if (retval)
 170                         exit(1);
 171         }
 172
 173 try_open_again:
 174         retval = ext2fs_open(device, open_flags, superblock, blocksize,
 175                              io_ptr, &current_fs);
 176         if (retval && (retval == EXT2_ET_SB_CSUM_INVALID) &&
 177             !(open_flags & EXT2_FLAG_IGNORE_CSUM_ERRORS)) {
 178                 open_flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
 179                 printf("Checksum errors in superblock!  Retrying...\n");
 180                 goto try_open_again;
 181         }
 182         if (retval) {
 183                 com_err(debug_prog_name, retval,
 184                         "while trying to open %s", device);
 185                 if (retval == EXT2_ET_BAD_MAGIC)
 186                         check_plausibility(device, CHECK_FS_EXIST, NULL);
 187                 current_fs = NULL;
 188                 return;
 189         }
 190         current_fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
 191
 192         if (catastrophic)
 193                 com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps");
 194         else {
 195                 retval = ext2fs_read_bitmaps(current_fs);
 196                 if (retval) {
 197                         com_err(device, retval,
 198                                 "while reading allocation bitmaps");
 199                         goto errout;
 200                 }
 201         }
 202
 203         if (data_io) {
 204                 retval = ext2fs_set_data_io(current_fs, data_io);
 205                 if (retval) {
 206                         com_err(device, retval,
 207                                 "while setting data source");
 208                         goto errout;
 209                 }
 210         }
 211
 212         root = cwd = EXT2_ROOT_INO;
 213         return;
 214
 215 errout:
 216         retval = ext2fs_close_free(&current_fs);
 217         if (retval)
 218                 com_err(device, retval, "while trying to close filesystem");
 219 }
 220
 221 void do_open_filesys(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
 222                      void *infop EXT2FS_ATTR((unused)))
 223 {
 224         int     c, err;
 225         int     catastrophic = 0;
 226         blk64_t superblock = 0;
 227         blk64_t blocksize = 0;
 228         int     open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
 229         char    *data_filename = 0;
 230         char    *undo_file = NULL;
 231
 232         reset_getopt();
 233         while ((c = getopt(argc, argv, "iwfecb:s:d:Dz:")) != EOF) {
 234                 switch (c) {
 235                 case 'i':
 236                         open_flags |= EXT2_FLAG_IMAGE_FILE;
 237                         break;
 238                 case 'w':
 239 #ifdef READ_ONLY
 240                         goto print_usage;
 241 #else
 242                         open_flags |= EXT2_FLAG_RW;
 243 #endif /* READ_ONLY */
 244                         break;
 245                 case 'f':
 246                         open_flags |= EXT2_FLAG_FORCE;
 247                         break;
 248                 case 'e':
 249                         open_flags |= EXT2_FLAG_EXCLUSIVE;
 250                         break;
 251                 case 'c':
 252                         catastrophic = 1;
 253                         break;
 254                 case 'd':
 255                         data_filename = optarg;
 256                         break;
 257                 case 'D':
 258                         open_flags |= EXT2_FLAG_DIRECT_IO;
 259                         break;
 260                 case 'b':
 261                         blocksize = parse_ulong(optarg, argv[0],
 262                                                 "block size", &err);
 263                         if (err)
 264                                 return;
 265                         break;
 266                 case 's':
 267                         err = strtoblk(argv[0], optarg,
 268                                        "superblock block number", &superblock);
 269                         if (err)
 270                                 return;
 271                         break;
 272                 case 'z':
 273                         undo_file = optarg;
 274                         break;
 275                 default:
 276                         goto print_usage;
 277                 }
 278         }
 279         if (optind != argc-1) {
 280                 goto print_usage;
 281         }
 282         if (check_fs_not_open(argv[0]))
 283                 return;
 284         open_filesystem(argv[optind], open_flags,
 285                         superblock, blocksize, catastrophic,
 286                         data_filename, undo_file);
 287         return;
 288
 289 print_usage:
 290         fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] "
 291                 "[-d image_filename] [-z undo_file] [-c] [-i] [-f] [-e] [-D] "
 292 #ifndef READ_ONLY
 293                 "[-w] "
 294 #endif
 295                 "<device>\n", argv[0]);
 296 }
 297
 298 void do_lcd(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
 299             void *infop EXT2FS_ATTR((unused)))
 300 {
 301         if (argc != 2) {
 302                 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>");
 303                 return;
 304         }
 305
 306         if (chdir(argv[1]) == -1) {
 307                 com_err(argv[0], errno,
 308                         "while trying to change native directory to %s",
 309                         argv[1]);
 310                 return;
 311         }
 312 }
 313
 314 static void close_filesystem(NOARGS)
 315 {
 316         int     retval;
 317
 318         if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
 319                 retval = ext2fs_write_inode_bitmap(current_fs);
 320                 if (retval)
 321                         com_err("ext2fs_write_inode_bitmap", retval, 0);
 322         }
 323         if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
 324                 retval = ext2fs_write_block_bitmap(current_fs);
 325                 if (retval)
 326                         com_err("ext2fs_write_block_bitmap", retval, 0);
 327         }
 328         if (current_qctx)
 329                 quota_release_context(&current_qctx);
 330         retval = ext2fs_close_free(&current_fs);
 331         if (retval)
 332                 com_err("ext2fs_close", retval, 0);
 333         return;
 334 }
 335
 336 void do_close_filesys(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
 337                       void *infop EXT2FS_ATTR((unused)))
 338 {
 339         int     c;
 340
 341         if (check_fs_open(argv[0]))
 342                 return;
 343
 344         reset_getopt();
 345         while ((c = getopt (argc, argv, "a")) != EOF) {
 346                 switch (c) {
 347                 case 'a':
 348                         current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
 349                         break;
 350                 default:
 351                         goto print_usage;
 352                 }
 353         }
 354
 355         if (argc > optind) {
 356         print_usage:
 357                 com_err(0, 0, "Usage: close_filesys [-a]");
 358                 return;
 359         }
 360
 361         close_filesystem();
 362 }
 363
 364 #ifndef READ_ONLY
 365 void do_init_filesys(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
 366                      void *infop EXT2FS_ATTR((unused)))
 367 {
 368         struct ext2_super_block param;
 369         errcode_t       retval;
 370         int             err;
 371         blk64_t         blocks;
 372
 373         if (common_args_process(argc, argv, 3, 3, "initialize",
 374                                 "<device> <blocks>", CHECK_FS_NOTOPEN))
 375                 return;
 376
 377         memset(&param, 0, sizeof(struct ext2_super_block));
 378         err = strtoblk(argv[0], argv[2], "blocks count", &blocks);
 379         if (err)
 380                 return;
 381         ext2fs_blocks_count_set(&param, blocks);
 382         retval = ext2fs_initialize(argv[1], 0, &param,
 383                                    unix_io_manager, &current_fs);
 384         if (retval) {
 385                 com_err(argv[1], retval, "while initializing filesystem");
 386                 current_fs = NULL;
 387                 return;
 388         }
 389         root = cwd = EXT2_ROOT_INO;
 390         return;
 391 }
 392
 393 static void print_features(struct ext2_super_block * s, FILE *f)
 394 {
 395         int     i, j, printed=0;
 396         __u32   *mask = &s->s_feature_compat, m;
 397
 398         fputs("Filesystem features:", f);
 399         for (i=0; i <3; i++,mask++) {
 400                 for (j=0,m=1; j < 32; j++, m<<=1) {
 401                         if (*mask & m) {
 402                                 fprintf(f, " %s", e2p_feature2string(i, m));
 403                                 printed++;
 404                         }
 405                 }
 406         }
 407         if (printed == 0)
 408                 fputs("(none)", f);
 409         fputs("\n", f);
 410 }
 411 #endif /* READ_ONLY */
 412
 413 static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask,
 414                           const char *str, int *first, FILE *f)
 415 {
 416         if (ext2fs_bg_flags_test(fs, group, mask)) {
 417                 if (*first) {
 418                         fputs("           [", f);
 419                         *first = 0;
 420                 } else
 421                         fputs(", ", f);
 422                 fputs(str, f);
 423         }
 424 }
 425
 426 void do_show_super_stats(int argc, char *argv[],
 427                          int sci_idx EXT2FS_ATTR((unused)),
 428                          void *infop EXT2FS_ATTR((unused)))
 429 {
 430         const char *units ="block";
 431         dgrp_t  i;
 432         FILE    *out;
 433         int     c, header_only = 0;
 434         int     numdirs = 0, first, gdt_csum;
 435
 436         reset_getopt();
 437         while ((c = getopt (argc, argv, "h")) != EOF) {
 438                 switch (c) {
 439                 case 'h':
 440                         header_only++;
 441                         break;
 442                 default:
 443                         goto print_usage;
 444                 }
 445         }
 446         if (optind != argc) {
 447                 goto print_usage;
 448         }
 449         if (check_fs_open(argv[0]))
 450                 return;
 451         out = open_pager();
 452
 453         if (ext2fs_has_feature_bigalloc(current_fs->super))
 454                 units = "cluster";
 455
 456         list_super2(current_fs->super, out);
 457         if (ext2fs_has_feature_metadata_csum(current_fs->super) &&
 458             !ext2fs_superblock_csum_verify(current_fs,
 459                                            current_fs->super)) {
 460                 __u32 orig_csum = current_fs->super->s_checksum;
 461
 462                 ext2fs_superblock_csum_set(current_fs,
 463                                            current_fs->super);
 464                 fprintf(out, "Expected Checksum:        0x%08x\n",
 465                         current_fs->super->s_checksum);
 466                 current_fs->super->s_checksum = orig_csum;
 467         }
 468         for (i=0; i < current_fs->group_desc_count; i++)
 469                 numdirs += ext2fs_bg_used_dirs_count(current_fs, i);
 470         fprintf(out, "Directories:              %d\n", numdirs);
 471
 472         if (header_only) {
 473                 close_pager(out);
 474                 return;
 475         }
 476
 477         gdt_csum = ext2fs_has_group_desc_csum(current_fs);
 478         for (i = 0; i < current_fs->group_desc_count; i++) {
 479                 fprintf(out, " Group %2d: block bitmap at %llu, "
 480                         "inode bitmap at %llu, "
 481                         "inode table at %llu\n"
 482                         "           %u free %s%s, "
 483                         "%u free %s, "
 484                         "%u used %s%s",
 485                         i, ext2fs_block_bitmap_loc(current_fs, i),
 486                         ext2fs_inode_bitmap_loc(current_fs, i),
 487                         ext2fs_inode_table_loc(current_fs, i),
 488                         ext2fs_bg_free_blocks_count(current_fs, i), units,
 489                         ext2fs_bg_free_blocks_count(current_fs, i) != 1 ?
 490                         "s" : "",
 491                         ext2fs_bg_free_inodes_count(current_fs, i),
 492                         ext2fs_bg_free_inodes_count(current_fs, i) != 1 ?
 493                         "inodes" : "inode",
 494                         ext2fs_bg_used_dirs_count(current_fs, i),
 495                         ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories"
 496                                 : "directory", gdt_csum ? ", " : "\n");
 497                 if (gdt_csum)
 498                         fprintf(out, "%u unused %s\n",
 499                                 ext2fs_bg_itable_unused(current_fs, i),
 500                                 ext2fs_bg_itable_unused(current_fs, i) != 1 ?
 501                                 "inodes" : "inode");
 502                 first = 1;
 503                 print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init",
 504                               &first, out);
 505                 print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init",
 506                               &first, out);
 507                 if (gdt_csum) {
 508                         fprintf(out, "%sChecksum 0x%04x",
 509                                 first ? "           [":", ", ext2fs_bg_checksum(current_fs, i));
 510                         first = 0;
 511                 }
 512                 if (!first)
 513                         fputs("]\n", out);
 514         }
 515         close_pager(out);
 516         return;
 517 print_usage:
 518         fprintf(stderr, "%s: Usage: show_super_stats [-h]\n", argv[0]);
 519 }
 520
 521 #ifndef READ_ONLY
 522 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
 523                       char **argv EXT2FS_ATTR((unused)),
 524                       int sci_idx EXT2FS_ATTR((unused)),
 525                       void *infop EXT2FS_ATTR((unused)))
 526 {
 527         if (check_fs_open(argv[0]))
 528                 return;
 529         if (check_fs_read_write(argv[0]))
 530                 return;
 531
 532         if (argv[1] && !strcmp(argv[1], "-clean"))
 533                 current_fs->super->s_state |= EXT2_VALID_FS;
 534         else
 535                 current_fs->super->s_state &= ~EXT2_VALID_FS;
 536         ext2fs_mark_super_dirty(current_fs);
 537 }
 538 #endif /* READ_ONLY */
 539
 540 struct list_blocks_struct {
 541         FILE            *f;
 542         e2_blkcnt_t     total;
 543         blk64_t         first_block, last_block;
 544         e2_blkcnt_t     first_bcnt, last_bcnt;
 545         e2_blkcnt_t     first;
 546 };
 547
 548 static void finish_range(struct list_blocks_struct *lb)
 549 {
 550         if (lb->first_block == 0)
 551                 return;
 552         if (lb->first)
 553                 lb->first = 0;
 554         else
 555                 fprintf(lb->f, ", ");
 556         if (lb->first_block == lb->last_block)
 557                 fprintf(lb->f, "(%lld):%llu",
 558                         (long long)lb->first_bcnt, lb->first_block);
 559         else
 560                 fprintf(lb->f, "(%lld-%lld):%llu-%llu",
 561                         (long long)lb->first_bcnt, (long long)lb->last_bcnt,
 562                         lb->first_block, lb->last_block);
 563         lb->first_block = 0;
 564 }
 565
 566 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
 567                             blk64_t *blocknr, e2_blkcnt_t blockcnt,
 568                             blk64_t ref_block EXT2FS_ATTR((unused)),
 569                             int ref_offset EXT2FS_ATTR((unused)),
 570                             void *private)
 571 {
 572         struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
 573
 574         lb->total++;
 575         if (blockcnt >= 0) {
 576                 /*
 577                  * See if we can add on to the existing range (if it exists)
 578                  */
 579                 if (lb->first_block &&
 580                     (lb->last_block+1 == *blocknr) &&
 581                     (lb->last_bcnt+1 == blockcnt)) {
 582                         lb->last_block = *blocknr;
 583                         lb->last_bcnt = blockcnt;
 584                         return 0;
 585                 }
 586                 /*
 587                  * Start a new range.
 588                  */
 589                 finish_range(lb);
 590                 lb->first_block = lb->last_block = *blocknr;
 591                 lb->first_bcnt = lb->last_bcnt = blockcnt;
 592                 return 0;
 593         }
 594         /*
 595          * Not a normal block.  Always force a new range.
 596          */
 597         finish_range(lb);
 598         if (lb->first)
 599                 lb->first = 0;
 600         else
 601                 fprintf(lb->f, ", ");
 602         if (blockcnt == -1)
 603                 fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr);
 604         else if (blockcnt == -2)
 605                 fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr);
 606         else if (blockcnt == -3)
 607                 fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr);
 608         return 0;
 609 }
 610
 611 static void internal_dump_inode_extra(FILE *out,
 612                                       const char *prefix EXT2FS_ATTR((unused)),
 613                                       ext2_ino_t inode_num EXT2FS_ATTR((unused)),
 614                                       struct ext2_inode_large *inode)
 615 {
 616         fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
 617         if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
 618                         EXT2_GOOD_OLD_INODE_SIZE) {
 619                 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
 620                                 inode->i_extra_isize);
 621                 return;
 622         }
 623 }
 624
 625 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
 626 {
 627         struct list_blocks_struct lb;
 628
 629         fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
 630         lb.total = 0;
 631         lb.first_block = 0;
 632         lb.f = f;
 633         lb.first = 1;
 634         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
 635                               list_blocks_proc, (void *)&lb);
 636         finish_range(&lb);
 637         if (lb.total)
 638                 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
 639         fprintf(f,"\n");
 640 }
 641
 642 static int int_log10(unsigned long long arg)
 643 {
 644         int     l = 0;
 645
 646         arg = arg / 10;
 647         while (arg) {
 648                 l++;
 649                 arg = arg / 10;
 650         }
 651         return l;
 652 }
 653
 654 #define DUMP_LEAF_EXTENTS       0x01
 655 #define DUMP_NODE_EXTENTS       0x02
 656 #define DUMP_EXTENT_TABLE       0x04
 657
 658 static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino,
 659                          int flags, int logical_width, int physical_width)
 660 {
 661         ext2_extent_handle_t    handle;
 662         struct ext2fs_extent    extent;
 663         struct ext2_extent_info info;
 664         int                     op = EXT2_EXTENT_ROOT;
 665         unsigned int            printed = 0;
 666         errcode_t               errcode;
 667
 668         errcode = ext2fs_extent_open(current_fs, ino, &handle);
 669         if (errcode)
 670                 return;
 671
 672         if (flags & DUMP_EXTENT_TABLE)
 673                 fprintf(f, "Level Entries %*s %*s Length Flags\n",
 674                         (logical_width*2)+3, "Logical",
 675                         (physical_width*2)+3, "Physical");
 676         else
 677                 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix);
 678
 679         while (1) {
 680                 errcode = ext2fs_extent_get(handle, op, &extent);
 681
 682                 if (errcode)
 683                         break;
 684
 685                 op = EXT2_EXTENT_NEXT;
 686
 687                 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 688                         continue;
 689
 690                 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
 691                         if ((flags & DUMP_LEAF_EXTENTS) == 0)
 692                                 continue;
 693                 } else {
 694                         if ((flags & DUMP_NODE_EXTENTS) == 0)
 695                                 continue;
 696                 }
 697
 698                 errcode = ext2fs_extent_get_info(handle, &info);
 699                 if (errcode)
 700                         continue;
 701
 702                 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) {
 703                         if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 704                                 continue;
 705
 706                         if (flags & DUMP_EXTENT_TABLE) {
 707                                 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 708                                         "%*llu%*s %6u\n",
 709                                         info.curr_level, info.max_depth,
 710                                         info.curr_entry, info.num_entries,
 711                                         logical_width,
 712                                         extent.e_lblk,
 713                                         logical_width,
 714                                         extent.e_lblk + (extent.e_len - 1),
 715                                         physical_width,
 716                                         extent.e_pblk,
 717                                         physical_width+3, "", extent.e_len);
 718                                 continue;
 719                         }
 720
 721                         fprintf(f, "%s(ETB%d):%lld",
 722                                 printed ? ", " : "", info.curr_level,
 723                                 extent.e_pblk);
 724                         printed = 1;
 725                         continue;
 726                 }
 727
 728                 if (flags & DUMP_EXTENT_TABLE) {
 729                         fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 730                                 "%*llu - %*llu %6u %s\n",
 731                                 info.curr_level, info.max_depth,
 732                                 info.curr_entry, info.num_entries,
 733                                 logical_width,
 734                                 extent.e_lblk,
 735                                 logical_width,
 736                                 extent.e_lblk + (extent.e_len - 1),
 737                                 physical_width,
 738                                 extent.e_pblk,
 739                                 physical_width,
 740                                 extent.e_pblk + (extent.e_len - 1),
 741                                 extent.e_len,
 742                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 743                                         "Uninit" : "");
 744                         continue;
 745                 }
 746
 747                 if (extent.e_len == 0)
 748                         continue;
 749                 else if (extent.e_len == 1)
 750                         fprintf(f,
 751                                 "%s(%lld%s):%lld",
 752                                 printed ? ", " : "",
 753                                 extent.e_lblk,
 754                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 755                                 "[u]" : "",
 756                                 extent.e_pblk);
 757                 else
 758                         fprintf(f,
 759                                 "%s(%lld-%lld%s):%lld-%lld",
 760                                 printed ? ", " : "",
 761                                 extent.e_lblk,
 762                                 extent.e_lblk + (extent.e_len - 1),
 763                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 764                                         "[u]" : "",
 765                                 extent.e_pblk,
 766                                 extent.e_pblk + (extent.e_len - 1));
 767                 printed = 1;
 768         }
 769         if (printed)
 770                 fprintf(f, "\n");
 771         ext2fs_extent_free(handle);
 772 }
 773
 774 static void dump_inline_data(FILE *out, const char *prefix, ext2_ino_t inode_num)
 775 {
 776         errcode_t retval;
 777         size_t size;
 778
 779         retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
 780         if (!retval)
 781                 fprintf(out, "%sSize of inline data: %zu\n", prefix, size);
 782 }
 783
 784 static void dump_inline_symlink(FILE *out, ext2_ino_t inode_num,
 785                                 struct ext2_inode *inode, const char *prefix)
 786 {
 787         errcode_t retval;
 788         char *buf = NULL;
 789         size_t size;
 790
 791         retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
 792         if (retval)
 793                 goto out;
 794
 795         retval = ext2fs_get_memzero(size + 1, &buf);
 796         if (retval)
 797                 goto out;
 798
 799         retval = ext2fs_inline_data_get(current_fs, inode_num,
 800                                         inode, buf, &size);
 801         if (retval)
 802                 goto out;
 803
 804         fprintf(out, "%sFast link dest: \"%.*s\"\n", prefix,
 805                 (int)size, buf);
 806 out:
 807         if (buf)
 808                 ext2fs_free_mem(&buf);
 809         if (retval)
 810                 com_err(__func__, retval, "while dumping link destination");
 811 }
 812
 813 void internal_dump_inode(FILE *out, const char *prefix,
 814                          ext2_ino_t inode_num, struct ext2_inode *inode,
 815                          int do_dump_blocks)
 816 {
 817         const char *i_type;
 818         char frag, fsize;
 819         int os = current_fs->super->s_creator_os;
 820         struct ext2_inode_large *large_inode;
 821         int is_large_inode = 0;
 822
 823         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 824                 is_large_inode = 1;
 825         large_inode = (struct ext2_inode_large *) inode;
 826
 827         if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
 828         else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
 829         else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
 830         else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
 831         else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
 832         else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
 833         else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
 834         else i_type = "bad type";
 835         fprintf(out, "%sInode: %u   Type: %s    ", prefix, inode_num, i_type);
 836         fprintf(out, "%sMode:  0%03o   Flags: 0x%x\n",
 837                 prefix, inode->i_mode & 07777, inode->i_flags);
 838         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 839                 fprintf(out, "%sGeneration: %u    Version: 0x%08x:%08x\n",
 840                         prefix, inode->i_generation, large_inode->i_version_hi,
 841                         inode->osd1.linux1.l_i_version);
 842         } else {
 843                 fprintf(out, "%sGeneration: %u    Version: 0x%08x\n", prefix,
 844                         inode->i_generation, inode->osd1.linux1.l_i_version);
 845         }
 846         fprintf(out, "%sUser: %5d   Group: %5d",
 847                 prefix, inode_uid(*inode), inode_gid(*inode));
 848         if (is_large_inode && large_inode->i_extra_isize >= 32)
 849                 fprintf(out, "   Project: %5d", large_inode->i_projid);
 850         fputs("   Size: ", out);
 851         if (LINUX_S_ISREG(inode->i_mode) || LINUX_S_ISDIR(inode->i_mode))
 852                 fprintf(out, "%llu\n", EXT2_I_SIZE(inode));
 853         else
 854                 fprintf(out, "%d\n", inode->i_size);
 855         if (os == EXT2_OS_HURD)
 856                 fprintf(out,
 857                         "%sFile ACL: %d Translator: %d\n",
 858                         prefix,
 859                         inode->i_file_acl,
 860                         inode->osd1.hurd1.h_i_translator);
 861         else
 862                 fprintf(out, "%sFile ACL: %llu\n",
 863                         prefix,
 864                         inode->i_file_acl | ((long long)
 865                                 (inode->osd2.linux2.l_i_file_acl_high) << 32));
 866         if (os != EXT2_OS_HURD)
 867                 fprintf(out, "%sLinks: %d   Blockcount: %llu\n",
 868                         prefix, inode->i_links_count,
 869                         (((unsigned long long)
 870                           inode->osd2.linux2.l_i_blocks_hi << 32)) +
 871                         inode->i_blocks);
 872         else
 873                 fprintf(out, "%sLinks: %d   Blockcount: %u\n",
 874                         prefix, inode->i_links_count, inode->i_blocks);
 875         switch (os) {
 876             case EXT2_OS_HURD:
 877                 frag = inode->osd2.hurd2.h_i_frag;
 878                 fsize = inode->osd2.hurd2.h_i_fsize;
 879                 break;
 880             default:
 881                 frag = fsize = 0;
 882         }
 883         fprintf(out, "%sFragment:  Address: %d    Number: %d    Size: %d\n",
 884                 prefix, inode->i_faddr, frag, fsize);
 885         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 886                 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
 887                         inode->i_ctime, large_inode->i_ctime_extra,
 888                         inode_time_to_string(inode->i_ctime,
 889                                              large_inode->i_ctime_extra));
 890                 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
 891                         inode->i_atime, large_inode->i_atime_extra,
 892                         inode_time_to_string(inode->i_atime,
 893                                              large_inode->i_atime_extra));
 894                 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
 895                         inode->i_mtime, large_inode->i_mtime_extra,
 896                         inode_time_to_string(inode->i_mtime,
 897                                              large_inode->i_mtime_extra));
 898                 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
 899                         large_inode->i_crtime, large_inode->i_crtime_extra,
 900                         inode_time_to_string(large_inode->i_crtime,
 901                                              large_inode->i_crtime_extra));
 902                 if (inode->i_dtime)
 903                         fprintf(out, "%s dtime: 0x%08x:(%08x) -- %s", prefix,
 904                                 large_inode->i_dtime, large_inode->i_ctime_extra,
 905                                 inode_time_to_string(inode->i_dtime,
 906                                                      large_inode->i_ctime_extra));
 907         } else {
 908                 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
 909                         time_to_string((__s32) inode->i_ctime));
 910                 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
 911                         time_to_string((__s32) inode->i_atime));
 912                 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
 913                         time_to_string((__s32) inode->i_mtime));
 914                 if (inode->i_dtime)
 915                         fprintf(out, "%sdtime: 0x%08x -- %s", prefix,
 916                                 inode->i_dtime,
 917                                 time_to_string((__s32) inode->i_dtime));
 918         }
 919         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 920                 internal_dump_inode_extra(out, prefix, inode_num,
 921                                           (struct ext2_inode_large *) inode);
 922         dump_inode_attributes(out, inode_num);
 923         if (ext2fs_has_feature_metadata_csum(current_fs->super)) {
 924                 __u32 crc = inode->i_checksum_lo;
 925                 if (is_large_inode &&
 926                     large_inode->i_extra_isize >=
 927                                 (offsetof(struct ext2_inode_large,
 928                                           i_checksum_hi) -
 929                                  EXT2_GOOD_OLD_INODE_SIZE))
 930                         crc |= ((__u32)large_inode->i_checksum_hi) << 16;
 931                 fprintf(out, "Inode checksum: 0x%08x\n", crc);
 932         }
 933
 934         if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_is_fast_symlink(inode))
 935                 fprintf(out, "%sFast link dest: \"%.*s\"\n", prefix,
 936                         (int)EXT2_I_SIZE(inode), (char *)inode->i_block);
 937         else if (LINUX_S_ISLNK(inode->i_mode) &&
 938                    (inode->i_flags & EXT4_INLINE_DATA_FL))
 939                 dump_inline_symlink(out, inode_num, inode, prefix);
 940         else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
 941                 int major, minor;
 942                 const char *devnote;
 943
 944                 if (inode->i_block[0]) {
 945                         major = (inode->i_block[0] >> 8) & 255;
 946                         minor = inode->i_block[0] & 255;
 947                         devnote = "";
 948                 } else {
 949                         major = (inode->i_block[1] & 0xfff00) >> 8;
 950                         minor = ((inode->i_block[1] & 0xff) |
 951                                  ((inode->i_block[1] >> 12) & 0xfff00));
 952                         devnote = "(New-style) ";
 953                 }
 954                 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
 955                         devnote, major, minor, major, minor);
 956         } else if (do_dump_blocks) {
 957                 if (inode->i_flags & EXT4_EXTENTS_FL)
 958                         dump_extents(out, prefix, inode_num,
 959                                      DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0);
 960                 else if (inode->i_flags & EXT4_INLINE_DATA_FL)
 961                         dump_inline_data(out, prefix, inode_num);
 962                 else
 963                         dump_blocks(out, prefix, inode_num);
 964         }
 965 }
 966
 967 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
 968 {
 969         FILE    *out;
 970
 971         out = open_pager();
 972         internal_dump_inode(out, "", inode_num, inode, 1);
 973         close_pager(out);
 974 }
 975
 976 void do_stat(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
 977              void *infop EXT2FS_ATTR((unused)))
 978 {
 979         ext2_ino_t      inode;
 980         struct ext2_inode * inode_buf;
 981
 982         if (check_fs_open(argv[0]))
 983                 return;
 984
 985         inode_buf = (struct ext2_inode *)
 986                         malloc(EXT2_INODE_SIZE(current_fs->super));
 987         if (!inode_buf) {
 988                 fprintf(stderr, "do_stat: can't allocate buffer\n");
 989                 return;
 990         }
 991
 992         if (common_inode_args_process(argc, argv, &inode, 0)) {
 993                 free(inode_buf);
 994                 return;
 995         }
 996
 997         if (debugfs_read_inode2(inode, inode_buf, argv[0],
 998                                 EXT2_INODE_SIZE(current_fs->super), 0)) {
 999                 free(inode_buf);
1000                 return;
1001         }
1002
1003         dump_inode(inode, inode_buf);
1004         free(inode_buf);
1005         return;
1006 }
1007
1008 void do_dump_extents(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
1009                      void *infop EXT2FS_ATTR((unused)))
1010 {
1011         struct ext2_inode inode;
1012         ext2_ino_t      ino;
1013         FILE            *out;
1014         int             c, flags = 0;
1015         int             logical_width;
1016         int             physical_width;
1017
1018         reset_getopt();
1019         while ((c = getopt(argc, argv, "nl")) != EOF) {
1020                 switch (c) {
1021                 case 'n':
1022                         flags |= DUMP_NODE_EXTENTS;
1023                         break;
1024                 case 'l':
1025                         flags |= DUMP_LEAF_EXTENTS;
1026                         break;
1027                 }
1028         }
1029
1030         if (argc != optind + 1) {
1031                 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
1032                 return;
1033         }
1034
1035         if (flags == 0)
1036                 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
1037         flags |= DUMP_EXTENT_TABLE;
1038
1039         if (check_fs_open(argv[0]))
1040                 return;
1041
1042         ino = string_to_inode(argv[optind]);
1043         if (ino == 0)
1044                 return;
1045
1046         if (debugfs_read_inode(ino, &inode, argv[0]))
1047                 return;
1048
1049         if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
1050                 fprintf(stderr, "%s: does not uses extent block maps\n",
1051                         argv[optind]);
1052                 return;
1053         }
1054
1055         logical_width = int_log10((EXT2_I_SIZE(&inode)+current_fs->blocksize-1)/
1056                                   current_fs->blocksize) + 1;
1057         if (logical_width < 5)
1058                 logical_width = 5;
1059         physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1;
1060         if (physical_width < 5)
1061                 physical_width = 5;
1062
1063         out = open_pager();
1064         dump_extents(out, "", ino, flags, logical_width, physical_width);
1065         close_pager(out);
1066         return;
1067 }
1068
1069 static int print_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
1070                              blk64_t *blocknr,
1071                              e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1072                              blk64_t ref_block EXT2FS_ATTR((unused)),
1073                              int ref_offset EXT2FS_ATTR((unused)),
1074                              void *private EXT2FS_ATTR((unused)))
1075 {
1076         printf("%llu ", *blocknr);
1077         return 0;
1078 }
1079
1080 void do_blocks(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1081                void *infop EXT2FS_ATTR((unused)))
1082 {
1083         ext2_ino_t      inode;
1084
1085         if (check_fs_open(argv[0]))
1086                 return;
1087
1088         if (common_inode_args_process(argc, argv, &inode, 0)) {
1089                 return;
1090         }
1091
1092         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
1093                               print_blocks_proc, NULL);
1094         fputc('\n', stdout);
1095         return;
1096 }
1097
1098 void do_chroot(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1099                void *infop EXT2FS_ATTR((unused)))
1100 {
1101         ext2_ino_t inode;
1102         int retval;
1103
1104         if (common_inode_args_process(argc, argv, &inode, 0))
1105                 return;
1106
1107         retval = ext2fs_check_directory(current_fs, inode);
1108         if (retval)  {
1109                 com_err(argv[1], retval, 0);
1110                 return;
1111         }
1112         root = inode;
1113 }
1114
1115 #ifndef READ_ONLY
1116 void do_clri(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1117              void *infop EXT2FS_ATTR((unused)))
1118 {
1119         ext2_ino_t inode;
1120         struct ext2_inode inode_buf;
1121
1122         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1123                 return;
1124
1125         if (debugfs_read_inode(inode, &inode_buf, argv[0]))
1126                 return;
1127         memset(&inode_buf, 0, sizeof(inode_buf));
1128         if (debugfs_write_inode(inode, &inode_buf, argv[0]))
1129                 return;
1130 }
1131
1132 void do_freei(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1133               void *infop EXT2FS_ATTR((unused)))
1134 {
1135         unsigned int    len = 1;
1136         int             err = 0;
1137         ext2_ino_t      inode;
1138
1139         if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1140                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1141                 return;
1142         if (check_fs_read_write(argv[0]))
1143                 return;
1144
1145         inode = string_to_inode(argv[1]);
1146         if (!inode)
1147                 return;
1148
1149         if (argc == 3) {
1150                 len = parse_ulong(argv[2], argv[0], "length", &err);
1151                 if (err)
1152                         return;
1153         }
1154
1155         if (len == 1 &&
1156             !ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1157                 com_err(argv[0], 0, "Warning: inode already clear");
1158         while (len-- > 0)
1159                 ext2fs_unmark_inode_bitmap2(current_fs->inode_map, inode++);
1160         ext2fs_mark_ib_dirty(current_fs);
1161 }
1162
1163 void do_seti(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1164              void *infop EXT2FS_ATTR((unused)))
1165 {
1166         unsigned int    len = 1;
1167         int             err = 0;
1168         ext2_ino_t      inode;
1169
1170         if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1171                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1172                 return;
1173         if (check_fs_read_write(argv[0]))
1174                 return;
1175
1176         inode = string_to_inode(argv[1]);
1177         if (!inode)
1178                 return;
1179
1180         if (argc == 3) {
1181                 len = parse_ulong(argv[2], argv[0], "length", &err);
1182                 if (err)
1183                         return;
1184         }
1185
1186         if ((len == 1) &&
1187             ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1188                 com_err(argv[0], 0, "Warning: inode already set");
1189         while (len-- > 0)
1190                 ext2fs_mark_inode_bitmap2(current_fs->inode_map, inode++);
1191         ext2fs_mark_ib_dirty(current_fs);
1192 }
1193 #endif /* READ_ONLY */
1194
1195 void do_testi(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1196               void *infop EXT2FS_ATTR((unused)))
1197 {
1198         ext2_ino_t inode;
1199
1200         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
1201                 return;
1202
1203         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1204                 printf("Inode %u is marked in use\n", inode);
1205         else
1206                 printf("Inode %u is not in use\n", inode);
1207 }
1208
1209 #ifndef READ_ONLY
1210 void do_freeb(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1211               void *infop EXT2FS_ATTR((unused)))
1212 {
1213         blk64_t block;
1214         blk64_t count = 1;
1215
1216         if (common_block_args_process(argc, argv, &block, &count))
1217                 return;
1218         if (check_fs_read_write(argv[0]))
1219                 return;
1220         while (count-- > 0) {
1221                 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
1222                         com_err(argv[0], 0, "Warning: block %llu already clear",
1223                                 block);
1224                 ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
1225                 block++;
1226         }
1227         ext2fs_mark_bb_dirty(current_fs);
1228 }
1229
1230 void do_setb(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1231              void *infop EXT2FS_ATTR((unused)))
1232 {
1233         blk64_t block;
1234         blk64_t count = 1;
1235
1236         if (common_block_args_process(argc, argv, &block, &count))
1237                 return;
1238         if (check_fs_read_write(argv[0]))
1239                 return;
1240         while (count-- > 0) {
1241                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1242                         com_err(argv[0], 0, "Warning: block %llu already set",
1243                                 block);
1244                 ext2fs_mark_block_bitmap2(current_fs->block_map,block);
1245                 block++;
1246         }
1247         ext2fs_mark_bb_dirty(current_fs);
1248 }
1249 #endif /* READ_ONLY */
1250
1251 void do_testb(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1252               void *infop EXT2FS_ATTR((unused)))
1253 {
1254         blk64_t block;
1255         blk64_t count = 1;
1256
1257         if (common_block_args_process(argc, argv, &block, &count))
1258                 return;
1259         while (count-- > 0) {
1260                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1261                         printf("Block %llu marked in use\n", block);
1262                 else
1263                         printf("Block %llu not in use\n", block);
1264                 block++;
1265         }
1266 }
1267
1268 #ifndef READ_ONLY
1269 static void modify_u8(char *com, const char *prompt,
1270                       const char *format, __u8 *val)
1271 {
1272         char buf[200];
1273         unsigned long v;
1274         char *tmp;
1275
1276         sprintf(buf, format, *val);
1277         printf("%30s    [%s] ", prompt, buf);
1278         if (!fgets(buf, sizeof(buf), stdin))
1279                 return;
1280         if (buf[strlen (buf) - 1] == '\n')
1281                 buf[strlen (buf) - 1] = '\0';
1282         if (!buf[0])
1283                 return;
1284         v = strtoul(buf, &tmp, 0);
1285         if (*tmp)
1286                 com_err(com, 0, "Bad value - %s", buf);
1287         else
1288                 *val = v;
1289 }
1290
1291 static void modify_u16(char *com, const char *prompt,
1292                        const char *format, __u16 *val)
1293 {
1294         char buf[200];
1295         unsigned long v;
1296         char *tmp;
1297
1298         sprintf(buf, format, *val);
1299         printf("%30s    [%s] ", prompt, buf);
1300         if (!fgets(buf, sizeof(buf), stdin))
1301                 return;
1302         if (buf[strlen (buf) - 1] == '\n')
1303                 buf[strlen (buf) - 1] = '\0';
1304         if (!buf[0])
1305                 return;
1306         v = strtoul(buf, &tmp, 0);
1307         if (*tmp)
1308                 com_err(com, 0, "Bad value - %s", buf);
1309         else
1310                 *val = v;
1311 }
1312
1313 static void modify_u32(char *com, const char *prompt,
1314                        const char *format, __u32 *val)
1315 {
1316         char buf[200];
1317         unsigned long v;
1318         char *tmp;
1319
1320         sprintf(buf, format, *val);
1321         printf("%30s    [%s] ", prompt, buf);
1322         if (!fgets(buf, sizeof(buf), stdin))
1323                 return;
1324         if (buf[strlen (buf) - 1] == '\n')
1325                 buf[strlen (buf) - 1] = '\0';
1326         if (!buf[0])
1327                 return;
1328         v = strtoul(buf, &tmp, 0);
1329         if (*tmp)
1330                 com_err(com, 0, "Bad value - %s", buf);
1331         else
1332                 *val = v;
1333 }
1334
1335
1336 void do_modify_inode(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1337                      void *infop EXT2FS_ATTR((unused)))
1338 {
1339         struct ext2_inode inode;
1340         ext2_ino_t      inode_num;
1341         int             i;
1342         unsigned char   *frag, *fsize;
1343         char            buf[80];
1344         int             os;
1345         const char      *hex_format = "0x%x";
1346         const char      *octal_format = "0%o";
1347         const char      *decimal_format = "%d";
1348         const char      *unsignedlong_format = "%lu";
1349
1350         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1351                 return;
1352
1353         os = current_fs->super->s_creator_os;
1354
1355         if (debugfs_read_inode(inode_num, &inode, argv[1]))
1356                 return;
1357
1358         modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1359         modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1360         modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1361         modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1362         modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1363         modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1364         modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1365         modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1366         modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1367         if (os == EXT2_OS_LINUX)
1368                 modify_u16(argv[0], "Block count high", unsignedlong_format,
1369                            &inode.osd2.linux2.l_i_blocks_hi);
1370         modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1371         modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1372         modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1373 #if 0
1374         modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1375 #endif
1376         modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1377
1378         modify_u32(argv[0], "High 32bits of size", decimal_format,
1379                    &inode.i_size_high);
1380
1381         if (os == EXT2_OS_HURD)
1382                 modify_u32(argv[0], "Translator Block",
1383                             decimal_format, &inode.osd1.hurd1.h_i_translator);
1384
1385         modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1386         switch (os) {
1387             case EXT2_OS_HURD:
1388                 frag = &inode.osd2.hurd2.h_i_frag;
1389                 fsize = &inode.osd2.hurd2.h_i_fsize;
1390                 break;
1391             default:
1392                 frag = fsize = 0;
1393         }
1394         if (frag)
1395                 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1396         if (fsize)
1397                 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1398
1399         for (i=0;  i < EXT2_NDIR_BLOCKS; i++) {
1400                 sprintf(buf, "Direct Block #%d", i);
1401                 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1402         }
1403         modify_u32(argv[0], "Indirect Block", decimal_format,
1404                     &inode.i_block[EXT2_IND_BLOCK]);
1405         modify_u32(argv[0], "Double Indirect Block", decimal_format,
1406                     &inode.i_block[EXT2_DIND_BLOCK]);
1407         modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1408                     &inode.i_block[EXT2_TIND_BLOCK]);
1409         if (debugfs_write_inode(inode_num, &inode, argv[1]))
1410                 return;
1411 }
1412 #endif /* READ_ONLY */
1413
1414 void do_change_working_dir(int argc, char *argv[],
1415                            int sci_idx EXT2FS_ATTR((unused)),
1416                            void *infop EXT2FS_ATTR((unused)))
1417 {
1418         ext2_ino_t      inode;
1419         int             retval;
1420
1421         if (common_inode_args_process(argc, argv, &inode, 0))
1422                 return;
1423
1424         retval = ext2fs_check_directory(current_fs, inode);
1425         if (retval) {
1426                 com_err(argv[1], retval, 0);
1427                 return;
1428         }
1429         cwd = inode;
1430         return;
1431 }
1432
1433 void do_print_working_directory(int argc, char *argv[],
1434                                 int sci_idx EXT2FS_ATTR((unused)),
1435                                 void *infop EXT2FS_ATTR((unused)))
1436 {
1437         int     retval;
1438         char    *pathname = NULL;
1439
1440         if (common_args_process(argc, argv, 1, 1,
1441                                 "print_working_directory", "", 0))
1442                 return;
1443
1444         retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1445         if (retval) {
1446                 com_err(argv[0], retval,
1447                         "while trying to get pathname of cwd");
1448         }
1449         printf("[pwd]   INODE: %6u  PATH: %s\n",
1450                cwd, pathname ? pathname : "NULL");
1451         if (pathname) {
1452                 free(pathname);
1453                 pathname = NULL;
1454         }
1455         retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1456         if (retval) {
1457                 com_err(argv[0], retval,
1458                         "while trying to get pathname of root");
1459         }
1460         printf("[root]  INODE: %6u  PATH: %s\n",
1461                root, pathname ? pathname : "NULL");
1462         if (pathname) {
1463                 free(pathname);
1464                 pathname = NULL;
1465         }
1466         return;
1467 }
1468
1469 #ifndef READ_ONLY
1470 static void make_link(char *sourcename, char *destname)
1471 {
1472         ext2_ino_t      ino;
1473         struct ext2_inode inode;
1474         int             retval;
1475         ext2_ino_t      dir;
1476         char            *dest, *cp, *base_name;
1477
1478         /*
1479          * Get the source inode
1480          */
1481         ino = string_to_inode(sourcename);
1482         if (!ino)
1483                 return;
1484         base_name = strrchr(sourcename, '/');
1485         if (base_name)
1486                 base_name++;
1487         else
1488                 base_name = sourcename;
1489         /*
1490          * Figure out the destination.  First see if it exists and is
1491          * a directory.
1492          */
1493         if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1494                 dest = base_name;
1495         else {
1496                 /*
1497                  * OK, it doesn't exist.  See if it is
1498                  * '<dir>/basename' or 'basename'
1499                  */
1500                 cp = strrchr(destname, '/');
1501                 if (cp) {
1502                         *cp = 0;
1503                         dir = string_to_inode(destname);
1504                         if (!dir)
1505                                 return;
1506                         dest = cp+1;
1507                 } else {
1508                         dir = cwd;
1509                         dest = destname;
1510                 }
1511         }
1512
1513         if (debugfs_read_inode(ino, &inode, sourcename))
1514                 return;
1515
1516         retval = ext2fs_link(current_fs, dir, dest, ino,
1517                              ext2_file_type(inode.i_mode));
1518         if (retval)
1519                 com_err("make_link", retval, 0);
1520         return;
1521 }
1522
1523
1524 void do_link(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1525              void *infop EXT2FS_ATTR((unused)))
1526 {
1527         if (common_args_process(argc, argv, 3, 3, "link",
1528                                 "<source file> <dest_name>", CHECK_FS_RW))
1529                 return;
1530
1531         make_link(argv[1], argv[2]);
1532 }
1533
1534 static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1535                             e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1536                             blk64_t ref_block EXT2FS_ATTR((unused)),
1537                             int ref_offset EXT2FS_ATTR((unused)),
1538                             void *private EXT2FS_ATTR((unused)))
1539 {
1540         blk64_t block;
1541
1542         block = *blocknr;
1543         ext2fs_block_alloc_stats2(fs, block, +1);
1544         return 0;
1545 }
1546
1547 void do_undel(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1548               void *infop EXT2FS_ATTR((unused)))
1549 {
1550         ext2_ino_t      ino;
1551         struct ext2_inode inode;
1552
1553         if (common_args_process(argc, argv, 2, 3, "undelete",
1554                                 "<inode_num> [dest_name]",
1555                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1556                 return;
1557
1558         ino = string_to_inode(argv[1]);
1559         if (!ino)
1560                 return;
1561
1562         if (debugfs_read_inode(ino, &inode, argv[1]))
1563                 return;
1564
1565         if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
1566                 com_err(argv[1], 0, "Inode is not marked as deleted");
1567                 return;
1568         }
1569
1570         /*
1571          * XXX this function doesn't handle changing the links count on the
1572          * parent directory when undeleting a directory.
1573          */
1574         inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1575         inode.i_dtime = 0;
1576
1577         if (debugfs_write_inode(ino, &inode, argv[0]))
1578                 return;
1579
1580         ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1581                               mark_blocks_proc, NULL);
1582
1583         ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1584
1585         if (argc > 2)
1586                 make_link(argv[1], argv[2]);
1587 }
1588
1589 static void unlink_file_by_name(char *filename)
1590 {
1591         int             retval;
1592         ext2_ino_t      dir;
1593         char            *base_name;
1594
1595         base_name = strrchr(filename, '/');
1596         if (base_name) {
1597                 *base_name++ = '\0';
1598                 dir = string_to_inode(filename);
1599                 if (!dir)
1600                         return;
1601         } else {
1602                 dir = cwd;
1603                 base_name = filename;
1604         }
1605         retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1606         if (retval)
1607                 com_err("unlink_file_by_name", retval, 0);
1608         return;
1609 }
1610
1611 void do_unlink(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1612                void *infop EXT2FS_ATTR((unused)))
1613 {
1614         if (common_args_process(argc, argv, 2, 2, "link",
1615                                 "<pathname>", CHECK_FS_RW))
1616                 return;
1617
1618         unlink_file_by_name(argv[1]);
1619 }
1620
1621 void do_copy_inode(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1622                    void *infop EXT2FS_ATTR((unused)))
1623 {
1624         ext2_ino_t      src_ino, dest_ino;
1625         unsigned char   buf[4096];
1626
1627         if (common_args_process(argc, argv, 3, 3, "copy_inode",
1628                                 "<source file> <dest_name>", CHECK_FS_RW))
1629                 return;
1630
1631         src_ino = string_to_inode(argv[1]);
1632         if (!src_ino)
1633                 return;
1634
1635         dest_ino = string_to_inode(argv[2]);
1636         if (!dest_ino)
1637                 return;
1638
1639         if (debugfs_read_inode2(src_ino, (struct ext2_inode *) buf,
1640                                 argv[0], sizeof(buf), 0))
1641                 return;
1642
1643         if (debugfs_write_inode2(dest_ino, (struct ext2_inode *) buf,
1644                                  argv[0], sizeof(buf), 0))
1645                 return;
1646 }
1647
1648 #endif /* READ_ONLY */
1649
1650 void do_find_free_block(int argc, char *argv[],
1651                         int sci_idx EXT2FS_ATTR((unused)),
1652                         void *infop EXT2FS_ATTR((unused)))
1653 {
1654         blk64_t free_blk, goal, first_free = 0;
1655         int             count;
1656         errcode_t       retval;
1657         char            *tmp;
1658
1659         if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1660                 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1661                 return;
1662         }
1663         if (check_fs_open(argv[0]))
1664                 return;
1665
1666         if (argc > 1) {
1667                 count = strtol(argv[1],&tmp,0);
1668                 if (*tmp) {
1669                         com_err(argv[0], 0, "Bad count - %s", argv[1]);
1670                         return;
1671                 }
1672         } else
1673                 count = 1;
1674
1675         if (argc > 2) {
1676                 goal = strtol(argv[2], &tmp, 0);
1677                 if (*tmp) {
1678                         com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1679                         return;
1680                 }
1681         }
1682         else
1683                 goal = current_fs->super->s_first_data_block;
1684
1685         printf("Free blocks found: ");
1686         free_blk = goal - 1;
1687         while (count-- > 0) {
1688                 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
1689                                            &free_blk);
1690                 if (first_free) {
1691                         if (first_free == free_blk)
1692                                 break;
1693                 } else
1694                         first_free = free_blk;
1695                 if (retval) {
1696                         com_err("ext2fs_new_block", retval, 0);
1697                         return;
1698                 } else
1699                         printf("%llu ", free_blk);
1700         }
1701         printf("\n");
1702 }
1703
1704 void do_find_free_inode(int argc, char *argv[],
1705                         int sci_idx EXT2FS_ATTR((unused)),
1706                         void *infop EXT2FS_ATTR((unused)))
1707 {
1708         ext2_ino_t      free_inode, dir;
1709         int             mode;
1710         int             retval;
1711         char            *tmp;
1712
1713         if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1714                 com_err(argv[0], 0, "Usage: find_free_inode [dir [mode]]");
1715                 return;
1716         }
1717         if (check_fs_open(argv[0]))
1718                 return;
1719
1720         if (argc > 1) {
1721                 dir = strtol(argv[1], &tmp, 0);
1722                 if (*tmp) {
1723                         com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1724                         return;
1725                 }
1726         }
1727         else
1728                 dir = root;
1729         if (argc > 2) {
1730                 mode = strtol(argv[2], &tmp, 0);
1731                 if (*tmp) {
1732                         com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1733                         return;
1734                 }
1735         } else
1736                 mode = 010755;
1737
1738         retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1739         if (retval)
1740                 com_err("ext2fs_new_inode", retval, 0);
1741         else
1742                 printf("Free inode found: %u\n", free_inode);
1743 }
1744
1745 #ifndef READ_ONLY
1746 void do_write(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1747               void *infop EXT2FS_ATTR((unused)))
1748 {
1749         errcode_t       retval;
1750
1751         if (common_args_process(argc, argv, 3, 3, "write",
1752                                 "<native file> <new file>", CHECK_FS_RW))
1753                 return;
1754
1755         retval = do_write_internal(current_fs, cwd, argv[1], argv[2], root);
1756         if (retval)
1757                 com_err(argv[0], retval, 0);
1758 }
1759
1760 void do_mknod(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1761               void *infop EXT2FS_ATTR((unused)))
1762 {
1763         unsigned long   major, minor;
1764         errcode_t       retval;
1765         int             nr;
1766         struct stat     st;
1767
1768         if (check_fs_open(argv[0]))
1769                 return;
1770         if (argc < 3 || argv[2][1]) {
1771         usage:
1772                 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1773                 return;
1774         }
1775
1776         minor = major = 0;
1777         switch (argv[2][0]) {
1778                 case 'p':
1779                         st.st_mode = S_IFIFO;
1780                         nr = 3;
1781                         break;
1782                 case 'c':
1783                         st.st_mode = S_IFCHR;
1784                         nr = 5;
1785                         break;
1786                 case 'b':
1787                         st.st_mode = S_IFBLK;
1788                         nr = 5;
1789                         break;
1790                 default:
1791                         nr = 0;
1792         }
1793
1794         if (nr == 5) {
1795                 major = strtoul(argv[3], argv+3, 0);
1796                 minor = strtoul(argv[4], argv+4, 0);
1797                 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1798                         nr = 0;
1799         }
1800
1801         if (argc != nr)
1802                 goto usage;
1803
1804         st.st_rdev = makedev(major, minor);
1805         retval = do_mknod_internal(current_fs, cwd, argv[1],
1806                                    st.st_mode, st.st_rdev);
1807         if (retval)
1808                 com_err(argv[0], retval, 0);
1809 }
1810
1811 void do_mkdir(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1812               void *infop EXT2FS_ATTR((unused)))
1813 {
1814         errcode_t retval;
1815
1816         if (common_args_process(argc, argv, 2, 2, "mkdir",
1817                                 "<filename>", CHECK_FS_RW))
1818                 return;
1819
1820         retval = do_mkdir_internal(current_fs, cwd, argv[1], root);
1821         if (retval)
1822                 com_err(argv[0], retval, 0);
1823
1824 }
1825
1826 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1827                                e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1828                                blk64_t ref_block EXT2FS_ATTR((unused)),
1829                                int ref_offset EXT2FS_ATTR((unused)),
1830                                void *private)
1831 {
1832         blk64_t block = *blocknr;
1833         blk64_t *last_cluster = (blk64_t *)private;
1834         blk64_t cluster = EXT2FS_B2C(fs, block);
1835
1836         if (cluster == *last_cluster)
1837                 return 0;
1838
1839         *last_cluster = cluster;
1840
1841         ext2fs_block_alloc_stats2(fs, block, -1);
1842         return 0;
1843 }
1844
1845 static void kill_file_by_inode(ext2_ino_t inode)
1846 {
1847         struct ext2_inode inode_buf;
1848
1849         if (debugfs_read_inode(inode, &inode_buf, 0))
1850                 return;
1851         inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1852         if (debugfs_write_inode(inode, &inode_buf, 0))
1853                 return;
1854         if (ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf)) {
1855                 blk64_t last_cluster = 0;
1856                 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY,
1857                                       NULL, release_blocks_proc, &last_cluster);
1858         }
1859         printf("\n");
1860         ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1861                                   LINUX_S_ISDIR(inode_buf.i_mode));
1862 }
1863
1864
1865 void do_kill_file(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1866                   void *infop EXT2FS_ATTR((unused)))
1867 {
1868         ext2_ino_t inode_num;
1869
1870         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1871                 return;
1872
1873         kill_file_by_inode(inode_num);
1874 }
1875
1876 void do_rm(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1877            void *infop EXT2FS_ATTR((unused)))
1878 {
1879         int retval;
1880         ext2_ino_t inode_num;
1881         struct ext2_inode inode;
1882
1883         if (common_args_process(argc, argv, 2, 2, "rm",
1884                                 "<filename>", CHECK_FS_RW))
1885                 return;
1886
1887         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1888         if (retval) {
1889                 com_err(argv[0], retval, "while trying to resolve filename");
1890                 return;
1891         }
1892
1893         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1894                 return;
1895
1896         if (LINUX_S_ISDIR(inode.i_mode)) {
1897                 com_err(argv[0], 0, "file is a directory");
1898                 return;
1899         }
1900
1901         --inode.i_links_count;
1902         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1903                 return;
1904
1905         unlink_file_by_name(argv[1]);
1906         if (inode.i_links_count == 0)
1907                 kill_file_by_inode(inode_num);
1908 }
1909
1910 struct rd_struct {
1911         ext2_ino_t      parent;
1912         int             empty;
1913 };
1914
1915 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1916                       int       entry EXT2FS_ATTR((unused)),
1917                       struct ext2_dir_entry *dirent,
1918                       int       offset EXT2FS_ATTR((unused)),
1919                       int       blocksize EXT2FS_ATTR((unused)),
1920                       char      *buf EXT2FS_ATTR((unused)),
1921                       void      *private)
1922 {
1923         struct rd_struct *rds = (struct rd_struct *) private;
1924
1925         if (dirent->inode == 0)
1926                 return 0;
1927         if ((ext2fs_dirent_name_len(dirent) == 1) && (dirent->name[0] == '.'))
1928                 return 0;
1929         if ((ext2fs_dirent_name_len(dirent) == 2) && (dirent->name[0] == '.') &&
1930             (dirent->name[1] == '.')) {
1931                 rds->parent = dirent->inode;
1932                 return 0;
1933         }
1934         rds->empty = 0;
1935         return 0;
1936 }
1937
1938 void do_rmdir(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1939               void *infop EXT2FS_ATTR((unused)))
1940 {
1941         int retval;
1942         ext2_ino_t inode_num;
1943         struct ext2_inode inode;
1944         struct rd_struct rds;
1945
1946         if (common_args_process(argc, argv, 2, 2, "rmdir",
1947                                 "<filename>", CHECK_FS_RW))
1948                 return;
1949
1950         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1951         if (retval) {
1952                 com_err(argv[0], retval, "while trying to resolve filename");
1953                 return;
1954         }
1955
1956         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1957                 return;
1958
1959         if (!LINUX_S_ISDIR(inode.i_mode)) {
1960                 com_err(argv[0], 0, "file is not a directory");
1961                 return;
1962         }
1963
1964         rds.parent = 0;
1965         rds.empty = 1;
1966
1967         retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1968                                     0, rmdir_proc, &rds);
1969         if (retval) {
1970                 com_err(argv[0], retval, "while iterating over directory");
1971                 return;
1972         }
1973         if (rds.empty == 0) {
1974                 com_err(argv[0], 0, "directory not empty");
1975                 return;
1976         }
1977
1978         inode.i_links_count = 0;
1979         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1980                 return;
1981
1982         unlink_file_by_name(argv[1]);
1983         kill_file_by_inode(inode_num);
1984
1985         if (rds.parent) {
1986                 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
1987                         return;
1988                 if (inode.i_links_count > 1)
1989                         inode.i_links_count--;
1990                 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
1991                         return;
1992         }
1993 }
1994 #endif /* READ_ONLY */
1995
1996 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
1997                             char *argv[] EXT2FS_ATTR((unused)),
1998                             int sci_idx EXT2FS_ATTR((unused)),
1999                             void *infop EXT2FS_ATTR((unused)))
2000 {
2001         if (current_fs)
2002                 printf("Open mode: read-%s\n",
2003                        current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
2004         printf("Filesystem in use: %s\n",
2005                current_fs ? current_fs->device_name : "--none--");
2006 }
2007
2008 #ifndef READ_ONLY
2009 void do_expand_dir(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2010                     void *infop EXT2FS_ATTR((unused)))
2011 {
2012         ext2_ino_t inode;
2013         int retval;
2014
2015         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
2016                 return;
2017
2018         retval = ext2fs_expand_dir(current_fs, inode);
2019         if (retval)
2020                 com_err("ext2fs_expand_dir", retval, 0);
2021         return;
2022 }
2023
2024 void do_features(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2025                  void *infop EXT2FS_ATTR((unused)))
2026 {
2027         int     i;
2028
2029         if (check_fs_open(argv[0]))
2030                 return;
2031
2032         if ((argc != 1) && check_fs_read_write(argv[0]))
2033                 return;
2034         for (i=1; i < argc; i++) {
2035                 if (e2p_edit_feature(argv[i],
2036                                      &current_fs->super->s_feature_compat, 0))
2037                         com_err(argv[0], 0, "Unknown feature: %s\n",
2038                                 argv[i]);
2039                 else
2040                         ext2fs_mark_super_dirty(current_fs);
2041         }
2042         print_features(current_fs->super, stdout);
2043 }
2044 #endif /* READ_ONLY */
2045
2046 void do_bmap(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2047              void *infop EXT2FS_ATTR((unused)))
2048 {
2049         ext2_ino_t      ino;
2050         blk64_t         blk, pblk = 0;
2051         int             c, err, flags = 0, ret_flags = 0;
2052         errcode_t       errcode;
2053
2054         if (check_fs_open(argv[0]))
2055                 return;
2056
2057         reset_getopt();
2058         while ((c = getopt (argc, argv, "a")) != EOF) {
2059                 switch (c) {
2060                 case 'a':
2061                         flags |= BMAP_ALLOC;
2062                         break;
2063                 default:
2064                         goto print_usage;
2065                 }
2066         }
2067
2068         if (argc <= optind+1) {
2069         print_usage:
2070                 com_err(0, 0,
2071                         "Usage: bmap [-a] <file> logical_blk [physical_blk]");
2072                 return;
2073         }
2074
2075         ino = string_to_inode(argv[optind++]);
2076         if (!ino)
2077                 return;
2078         err = strtoblk(argv[0], argv[optind++], "logical block", &blk);
2079         if (err)
2080                 return;
2081
2082         if (argc > optind+1)
2083                 goto print_usage;
2084
2085         if (argc == optind+1) {
2086                 err = strtoblk(argv[0], argv[optind++],
2087                                "physical block", &pblk);
2088                 if (err)
2089                         return;
2090                 if (flags & BMAP_ALLOC) {
2091                         com_err(0, 0, "Can't set and allocate a block");
2092                         return;
2093                 }
2094                 flags |= BMAP_SET;
2095         }
2096
2097         errcode = ext2fs_bmap2(current_fs, ino, 0, 0, flags, blk,
2098                                &ret_flags, &pblk);
2099         if (errcode) {
2100                 com_err(argv[0], errcode,
2101                         "while mapping logical block %llu\n", blk);
2102                 return;
2103         }
2104         printf("%llu", pblk);
2105         if (ret_flags & BMAP_RET_UNINIT)
2106                 fputs(" (uninit)", stdout);
2107         fputc('\n', stdout);
2108 }
2109
2110 void do_imap(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2111              void *infop EXT2FS_ATTR((unused)))
2112 {
2113         ext2_ino_t      ino;
2114         unsigned long   group, block, block_nr, offset;
2115
2116         if (common_args_process(argc, argv, 2, 2, argv[0],
2117                                 "<file>", 0))
2118                 return;
2119         ino = string_to_inode(argv[1]);
2120         if (!ino)
2121                 return;
2122
2123         group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
2124         offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
2125                 EXT2_INODE_SIZE(current_fs->super);
2126         block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
2127         if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
2128                 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
2129                         group);
2130                 return;
2131         }
2132         block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
2133                 block;
2134         offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
2135
2136         printf("Inode %d is part of block group %lu\n"
2137                "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
2138                block_nr, offset);
2139
2140 }
2141
2142 void do_idump(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2143               void *infop EXT2FS_ATTR((unused)))
2144 {
2145         struct ext2_inode_large *inode;
2146         ext2_ino_t      ino;
2147         unsigned char   *buf;
2148         errcode_t       err;
2149         unsigned int    isize, size, offset = 0;
2150         int             c, mode = 0;
2151
2152         reset_getopt();
2153         while ((c = getopt (argc, argv, "bex")) != EOF) {
2154                 if (mode || c == '?') {
2155                         com_err(argv[0], 0,
2156                                 "Usage: inode_dump [-b]|[-e] <file>");
2157                         return;
2158                 }
2159                 mode = c;
2160         }
2161         if (optind != argc-1)
2162                 return;
2163
2164         if (check_fs_open(argv[0]))
2165                 return;
2166
2167         ino = string_to_inode(argv[optind]);
2168         if (!ino)
2169                 return;
2170
2171         isize = EXT2_INODE_SIZE(current_fs->super);
2172         err = ext2fs_get_mem(isize, &buf);
2173         if (err) {
2174                 com_err(argv[0], err, "while allocating memory");
2175                 return;
2176         }
2177
2178         err = ext2fs_read_inode_full(current_fs, ino,
2179                                      (struct ext2_inode *)buf, isize);
2180         if (err) {
2181                 com_err(argv[0], err, "while reading inode %u", ino);
2182                 goto err;
2183         }
2184
2185         inode = (struct ext2_inode_large *) buf;
2186         size = isize;
2187         switch (mode) {
2188         case 'b':
2189                 offset = ((char *) (&inode->i_block)) - ((char *) buf);
2190                 size = sizeof(inode->i_block);
2191                 break;
2192         case 'x':
2193         case 'e':
2194                 if (size <= EXT2_GOOD_OLD_INODE_SIZE) {
2195                         com_err(argv[0], 0, "No extra space in inode");
2196                         goto err;
2197                 }
2198                 offset = EXT2_GOOD_OLD_INODE_SIZE + inode->i_extra_isize;
2199                 if (offset > size)
2200                         goto err;
2201                 size -= offset;
2202                 break;
2203         }
2204         if (mode == 'x')
2205                 raw_inode_xattr_dump(stdout, buf + offset, size);
2206         else
2207                 do_byte_hexdump(stdout, buf + offset, size);
2208 err:
2209         ext2fs_free_mem(&buf);
2210 }
2211
2212 #ifndef READ_ONLY
2213 void do_set_current_time(int argc, char *argv[],
2214                          int sci_idx EXT2FS_ATTR((unused)),
2215                          void *infop EXT2FS_ATTR((unused)))
2216 {
2217         __s64 now;
2218
2219         if (common_args_process(argc, argv, 2, 2, argv[0],
2220                                 "<time>", 0))
2221                 return;
2222
2223         now = string_to_time(argv[1]);
2224         if (now == -1) {
2225                 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
2226                         argv[1]);
2227                 return;
2228
2229         } else {
2230                 printf("Setting current time to %s\n", time_to_string(now));
2231                 current_fs->now = now;
2232         }
2233 }
2234 #endif /* READ_ONLY */
2235
2236 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
2237 {
2238         int compat, bit, ret;
2239         unsigned int feature_mask;
2240
2241         if (name) {
2242                 if (feature_type == E2P_FS_FEATURE)
2243                         ret = e2p_string2feature(name, &compat, &feature_mask);
2244                 else
2245                         ret = e2p_jrnl_string2feature(name, &compat,
2246                                                       &feature_mask);
2247                 if (ret)
2248                         return ret;
2249
2250                 if (!(supp[compat] & feature_mask))
2251                         return 1;
2252         } else {
2253                 for (compat = 0; compat < 3; compat++) {
2254                         for (bit = 0, feature_mask = 1; bit < 32;
2255                              bit++, feature_mask <<= 1) {
2256                                 if (supp[compat] & feature_mask) {
2257                                         if (feature_type == E2P_FS_FEATURE)
2258                                                 fprintf(stdout, " %s",
2259                                                 e2p_feature2string(compat,
2260                                                 feature_mask));
2261                                         else
2262                                                 fprintf(stdout, " %s",
2263                                                 e2p_jrnl_feature2string(compat,
2264                                                 feature_mask));
2265                                 }
2266                         }
2267                 }
2268                 fprintf(stdout, "\n");
2269         }
2270
2271         return 0;
2272 }
2273
2274 void do_supported_features(int argc, char *argv[],
2275                            int sci_idx EXT2FS_ATTR((unused)),
2276                            void *infop EXT2FS_ATTR((unused)))
2277 {
2278         int     ret;
2279         __u32   supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2280                             EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2281                             EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2282         __u32   jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES,
2283                                  JFS_KNOWN_INCOMPAT_FEATURES,
2284                                  JFS_KNOWN_ROCOMPAT_FEATURES };
2285
2286         if (argc > 1) {
2287                 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2288                 if (ret) {
2289                         ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2290                                                 argv[1]);
2291                 }
2292                 if (ret)
2293                         com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2294                 else
2295                         fprintf(stdout, "Supported feature: %s\n", argv[1]);
2296         } else {
2297                 fprintf(stdout, "Supported features:");
2298                 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2299                 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2300         }
2301 }
2302
2303 #ifndef READ_ONLY
2304 void do_punch(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2305               void *infop EXT2FS_ATTR((unused)))
2306 {
2307         ext2_ino_t      ino;
2308         blk64_t         start, end;
2309         int             err;
2310         errcode_t       errcode;
2311
2312         if (common_args_process(argc, argv, 3, 4, argv[0],
2313                                 "<file> start_blk [end_blk]",
2314                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
2315                 return;
2316
2317         ino = string_to_inode(argv[1]);
2318         if (!ino)
2319                 return;
2320         err = strtoblk(argv[0], argv[2], "logical block", &start);
2321         if (err)
2322                 return;
2323         if (argc == 4) {
2324                 err = strtoblk(argv[0], argv[3], "logical block", &end);
2325                 if (err)
2326                         return;
2327         } else
2328                 end = ~0;
2329
2330         errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
2331
2332         if (errcode) {
2333                 com_err(argv[0], errcode,
2334                         "while truncating inode %u from %llu to %llu\n", ino,
2335                         (unsigned long long) start, (unsigned long long) end);
2336                 return;
2337         }
2338 }
2339
2340 void do_fallocate(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2341                   void *infop EXT2FS_ATTR((unused)))
2342 {
2343         ext2_ino_t      ino;
2344         blk64_t         start, end;
2345         int             err;
2346         errcode_t       errcode;
2347
2348         if (common_args_process(argc, argv, 3, 4, argv[0],
2349                                 "<file> start_blk [end_blk]",
2350                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
2351                 return;
2352
2353         ino = string_to_inode(argv[1]);
2354         if (!ino)
2355                 return;
2356         err = strtoblk(argv[0], argv[2], "logical block", &start);
2357         if (err)
2358                 return;
2359         if (argc == 4) {
2360                 err = strtoblk(argv[0], argv[3], "logical block", &end);
2361                 if (err)
2362                         return;
2363         } else
2364                 end = ~0;
2365
2366         errcode = ext2fs_fallocate(current_fs, EXT2_FALLOCATE_INIT_BEYOND_EOF,
2367                                    ino, NULL, ~0ULL, start, end - start + 1);
2368
2369         if (errcode) {
2370                 com_err(argv[0], errcode,
2371                         "while fallocating inode %u from %llu to %llu\n", ino,
2372                         (unsigned long long) start, (unsigned long long) end);
2373                 return;
2374         }
2375 }
2376 #endif /* READ_ONLY */
2377
2378 void do_symlink(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2379                 void *infop EXT2FS_ATTR((unused)))
2380 {
2381         errcode_t       retval;
2382
2383         if (common_args_process(argc, argv, 3, 3, "symlink",
2384                                 "<filename> <target>", CHECK_FS_RW))
2385                 return;
2386
2387         retval = do_symlink_internal(current_fs, cwd, argv[1], argv[2], root);
2388         if (retval)
2389                 com_err(argv[0], retval, 0);
2390
2391 }
2392
2393 #if CONFIG_MMP
2394 void do_dump_mmp(int argc EXT2FS_ATTR((unused)), char *argv[],
2395                  int sci_idx EXT2FS_ATTR((unused)),
2396                  void *infop EXT2FS_ATTR((unused)))
2397 {
2398         struct mmp_struct *mmp_s;
2399         unsigned long long mmp_block;
2400         time_t t;
2401         errcode_t retval = 0;
2402
2403         if (check_fs_open(argv[0]))
2404                 return;
2405
2406         if (argc > 1) {
2407                 char *end = NULL;
2408                 mmp_block = strtoull(argv[1], &end, 0);
2409                 if (end == argv[0] || mmp_block == 0) {
2410                         fprintf(stderr, "%s: invalid MMP block '%s' given\n",
2411                                 argv[0], argv[1]);
2412                         return;
2413                 }
2414         } else {
2415                 mmp_block = current_fs->super->s_mmp_block;
2416         }
2417
2418         if (mmp_block == 0) {
2419                 fprintf(stderr, "%s: MMP: not active on this filesystem.\n",
2420                         argv[0]);
2421                 return;
2422         }
2423
2424         if (current_fs->mmp_buf == NULL) {
2425                 retval = ext2fs_get_mem(current_fs->blocksize,
2426                                         &current_fs->mmp_buf);
2427                 if (retval) {
2428                         com_err(argv[0], retval, "allocating MMP buffer.\n");
2429                         return;
2430                 }
2431         }
2432
2433         mmp_s = current_fs->mmp_buf;
2434
2435         retval = ext2fs_mmp_read(current_fs, mmp_block, current_fs->mmp_buf);
2436         if (retval) {
2437                 com_err(argv[0], retval, "reading MMP block %llu.\n",
2438                         mmp_block);
2439                 return;
2440         }
2441
2442         t = mmp_s->mmp_time;
2443         fprintf(stdout, "block_number: %llu\n", current_fs->super->s_mmp_block);
2444         fprintf(stdout, "update_interval: %d\n",
2445                 current_fs->super->s_mmp_update_interval);
2446         fprintf(stdout, "check_interval: %d\n", mmp_s->mmp_check_interval);
2447         fprintf(stdout, "sequence: %08x\n", mmp_s->mmp_seq);
2448         fprintf(stdout, "time: %lld -- %s", mmp_s->mmp_time, ctime(&t));
2449         fprintf(stdout, "node_name: %s\n", mmp_s->mmp_nodename);
2450         fprintf(stdout, "device_name: %s\n", mmp_s->mmp_bdevname);
2451         fprintf(stdout, "magic: 0x%x\n", mmp_s->mmp_magic);
2452         fprintf(stdout, "checksum: 0x%08x\n", mmp_s->mmp_checksum);
2453 }
2454 #else
2455 void do_dump_mmp(int argc EXT2FS_ATTR((unused)),
2456                  char *argv[] EXT2FS_ATTR((unused)),
2457                  int sci_idx EXT2FS_ATTR((unused)),
2458                  void *infop EXT2FS_ATTR((unused)))
2459 {
2460         fprintf(stdout, "MMP is unsupported, please recompile with "
2461                         "--enable-mmp\n");
2462 }
2463 #endif
2464
2465 static int source_file(const char *cmd_file, int ss_idx)
2466 {
2467         FILE            *f;
2468         char            buf[BUFSIZ];
2469         char            *cp;
2470         int             exit_status = 0;
2471         int             retval;
2472
2473         if (strcmp(cmd_file, "-") == 0)
2474                 f = stdin;
2475         else {
2476                 f = fopen(cmd_file, "r");
2477                 if (!f) {
2478                         perror(cmd_file);
2479                         exit(1);
2480                 }
2481         }
2482         fflush(stdout);
2483         fflush(stderr);
2484         setbuf(stdout, NULL);
2485         setbuf(stderr, NULL);
2486         while (!feof(f)) {
2487                 if (fgets(buf, sizeof(buf), f) == NULL)
2488                         break;
2489                 cp = strchr(buf, '\n');
2490                 if (cp)
2491                         *cp = 0;
2492                 cp = strchr(buf, '\r');
2493                 if (cp)
2494                         *cp = 0;
2495                 printf("debugfs: %s\n", buf);
2496                 retval = ss_execute_line(ss_idx, buf);
2497                 if (retval) {
2498                         ss_perror(ss_idx, retval, buf);
2499                         exit_status++;
2500                 }
2501         }
2502         if (f != stdin)
2503                 fclose(f);
2504         return exit_status;
2505 }
2506
2507 int main(int argc, char **argv)
2508 {
2509         int             retval;
2510         const char      *usage =
2511                 "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] "
2512                 "[-R request] [-d data_source_device] [-i] [-n] [-D] [-V] ["
2513 #ifndef READ_ONLY
2514                 "[-w] [-z undo_file] "
2515 #endif
2516                 "[-c]] [device]";
2517         int             c;
2518         int             open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
2519         char            *request = 0;
2520         int             exit_status = 0;
2521         char            *cmd_file = 0;
2522         blk64_t         superblock = 0;
2523         blk64_t         blocksize = 0;
2524         int             catastrophic = 0;
2525         char            *data_filename = 0;
2526 #ifdef READ_ONLY
2527         const char      *opt_string = "nicR:f:b:s:Vd:D";
2528 #else
2529         const char      *opt_string = "niwcR:f:b:s:Vd:Dz:";
2530         char            *undo_file = NULL;
2531 #endif
2532 #ifdef CONFIG_JBD_DEBUG
2533         char            *jbd_debug;
2534 #endif
2535
2536         if (debug_prog_name == 0)
2537 #ifdef READ_ONLY
2538                 debug_prog_name = "rdebugfs";
2539 #else
2540                 debug_prog_name = "debugfs";
2541 #endif
2542         add_error_table(&et_ext2_error_table);
2543         fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2544                  E2FSPROGS_VERSION, E2FSPROGS_DATE);
2545
2546 #ifdef CONFIG_JBD_DEBUG
2547         jbd_debug = ss_safe_getenv("DEBUGFS_JBD_DEBUG");
2548         if (jbd_debug) {
2549                 int res = sscanf(jbd_debug, "%d", &journal_enable_debug);
2550
2551                 if (res != 1) {
2552                         fprintf(stderr,
2553                                 "DEBUGFS_JBD_DEBUG \"%s\" not an integer\n\n",
2554                                 jbd_debug);
2555                         exit(1);
2556                 }
2557         }
2558 #endif
2559         while ((c = getopt (argc, argv, opt_string)) != EOF) {
2560                 switch (c) {
2561                 case 'R':
2562                         request = optarg;
2563                         break;
2564                 case 'f':
2565                         cmd_file = optarg;
2566                         break;
2567                 case 'd':
2568                         data_filename = optarg;
2569                         break;
2570                 case 'i':
2571                         open_flags |= EXT2_FLAG_IMAGE_FILE;
2572                         break;
2573                 case 'n':
2574                         open_flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
2575                         break;
2576 #ifndef READ_ONLY
2577                 case 'w':
2578                         open_flags |= EXT2_FLAG_RW;
2579                         break;
2580 #endif
2581                 case 'D':
2582                         open_flags |= EXT2_FLAG_DIRECT_IO;
2583                         break;
2584                 case 'b':
2585                         blocksize = parse_ulong(optarg, argv[0],
2586                                                 "block size", 0);
2587                         break;
2588                 case 's':
2589                         retval = strtoblk(argv[0], optarg,
2590                                           "superblock block number",
2591                                           &superblock);
2592                         if (retval)
2593                                 return 1;
2594                         break;
2595                 case 'c':
2596                         catastrophic = 1;
2597                         break;
2598                 case 'V':
2599                         /* Print version number and exit */
2600                         fprintf(stderr, "\tUsing %s\n",
2601                                 error_message(EXT2_ET_BASE));
2602                         exit(0);
2603                 case 'z':
2604                         undo_file = optarg;
2605                         break;
2606                 default:
2607                         com_err(argv[0], 0, usage, debug_prog_name);
2608                         return 1;
2609                 }
2610         }
2611         if (optind < argc)
2612                 open_filesystem(argv[optind], open_flags,
2613                                 superblock, blocksize, catastrophic,
2614                                 data_filename, undo_file);
2615
2616         ss_sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2617                                           &debug_cmds, &retval);
2618         if (retval) {
2619                 ss_perror(ss_sci_idx, retval, "creating invocation");
2620                 exit(1);
2621         }
2622         ss_get_readline(ss_sci_idx);
2623
2624         (void) ss_add_request_table(ss_sci_idx, &ss_std_requests, 1, &retval);
2625         if (retval) {
2626                 ss_perror(ss_sci_idx, retval, "adding standard requests");
2627                 exit (1);
2628         }
2629         if (extra_cmds)
2630                 ss_add_request_table(ss_sci_idx, extra_cmds, 1, &retval);
2631         if (retval) {
2632                 ss_perror(ss_sci_idx, retval, "adding extra requests");
2633                 exit (1);
2634         }
2635         if (request) {
2636                 retval = 0;
2637                 retval = ss_execute_line(ss_sci_idx, request);
2638                 if (retval) {
2639                         ss_perror(ss_sci_idx, retval, request);
2640                         exit_status++;
2641                 }
2642         } else if (cmd_file) {
2643                 exit_status = source_file(cmd_file, ss_sci_idx);
2644         } else {
2645                 ss_listen(ss_sci_idx);
2646         }
2647
2648         ss_delete_invocation(ss_sci_idx);
2649
2650         if (current_fs)
2651                 close_filesystem();
2652
2653         remove_error_table(&et_ext2_error_table);
2654         return exit_status;
2655 }