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
  30 #include "debugfs.h"
  31 #include "uuid/uuid.h"
  32 #include "e2p/e2p.h"
  33
  34 #include <ext2fs/ext2_ext_attr.h>
  35
  36 #include "../version.h"
  37 #include "jfs_user.h"
  38 #include "../misc/plausible.h"
  39
  40 #ifndef BUFSIZ
  41 #define BUFSIZ 8192
  42 #endif
  43
  44 ss_request_table *extra_cmds;
  45 const char *debug_prog_name;
  46 int sci_idx;
  47
  48 ext2_filsys     current_fs;
  49 quota_ctx_t     current_qctx;
  50 ext2_ino_t      root, cwd;
  51
  52 static int debugfs_setup_tdb(const char *device_name, char *undo_file,
  53                              io_manager *io_ptr)
  54 {
  55         errcode_t retval = ENOMEM;
  56         char *tdb_dir = NULL, *tdb_file = NULL;
  57         char *dev_name, *tmp_name;
  58
  59         /* (re)open a specific undo file */
  60         if (undo_file && undo_file[0] != 0) {
  61                 retval = set_undo_io_backing_manager(*io_ptr);
  62                 if (retval)
  63                         goto err;
  64                 *io_ptr = undo_io_manager;
  65                 retval = set_undo_io_backup_file(undo_file);
  66                 if (retval)
  67                         goto err;
  68                 printf("Overwriting existing filesystem; this can be undone "
  69                         "using the command:\n"
  70                         "    e2undo %s %s\n\n",
  71                         undo_file, device_name);
  72                 return retval;
  73         }
  74
  75         /*
  76          * Configuration via a conf file would be
  77          * nice
  78          */
  79         tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
  80         if (!tdb_dir)
  81                 tdb_dir = "/var/lib/e2fsprogs";
  82
  83         if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
  84             access(tdb_dir, W_OK))
  85                 return 0;
  86
  87         tmp_name = strdup(device_name);
  88         if (!tmp_name)
  89                 goto errout;
  90         dev_name = basename(tmp_name);
  91         tdb_file = malloc(strlen(tdb_dir) + 9 + strlen(dev_name) + 7 + 1);
  92         if (!tdb_file) {
  93                 free(tmp_name);
  94                 goto errout;
  95         }
  96         sprintf(tdb_file, "%s/debugfs-%s.e2undo", tdb_dir, dev_name);
  97         free(tmp_name);
  98
  99         if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
 100                 retval = errno;
 101                 com_err("debugfs", retval,
 102                         "while trying to delete %s", tdb_file);
 103                 goto errout;
 104         }
 105
 106         retval = set_undo_io_backing_manager(*io_ptr);
 107         if (retval)
 108                 goto errout;
 109         *io_ptr = undo_io_manager;
 110         retval = set_undo_io_backup_file(tdb_file);
 111         if (retval)
 112                 goto errout;
 113         printf("Overwriting existing filesystem; this can be undone "
 114                 "using the command:\n"
 115                 "    e2undo %s %s\n\n", tdb_file, device_name);
 116
 117         free(tdb_file);
 118         return 0;
 119 errout:
 120         free(tdb_file);
 121 err:
 122         com_err("debugfs", retval, "while trying to setup undo file\n");
 123         return retval;
 124 }
 125
 126 static void open_filesystem(char *device, int open_flags, blk64_t superblock,
 127                             blk64_t blocksize, int catastrophic,
 128                             char *data_filename, char *undo_file)
 129 {
 130         int     retval;
 131         io_channel data_io = 0;
 132         io_manager io_ptr = unix_io_manager;
 133
 134         if (superblock != 0 && blocksize == 0) {
 135                 com_err(device, 0, "if you specify the superblock, you must also specify the block size");
 136                 current_fs = NULL;
 137                 return;
 138         }
 139
 140         if (data_filename) {
 141                 if ((open_flags & EXT2_FLAG_IMAGE_FILE) == 0) {
 142                         com_err(device, 0,
 143                                 "The -d option is only valid when reading an e2image file");
 144                         current_fs = NULL;
 145                         return;
 146                 }
 147                 retval = unix_io_manager->open(data_filename, 0, &data_io);
 148                 if (retval) {
 149                         com_err(data_filename, 0, "while opening data source");
 150                         current_fs = NULL;
 151                         return;
 152                 }
 153         }
 154
 155         if (catastrophic && (open_flags & EXT2_FLAG_RW)) {
 156                 com_err(device, 0,
 157                         "opening read-only because of catastrophic mode");
 158                 open_flags &= ~EXT2_FLAG_RW;
 159         }
 160         if (catastrophic)
 161                 open_flags |= EXT2_FLAG_SKIP_MMP;
 162
 163         if (undo_file) {
 164                 retval = debugfs_setup_tdb(device, undo_file, &io_ptr);
 165                 if (retval)
 166                         exit(1);
 167         }
 168
 169         retval = ext2fs_open(device, open_flags, superblock, blocksize,
 170                              io_ptr, &current_fs);
 171         if (retval) {
 172                 com_err(device, retval, "while opening filesystem");
 173                 if (retval == EXT2_ET_BAD_MAGIC)
 174                         check_plausibility(device, CHECK_FS_EXIST, NULL);
 175                 current_fs = NULL;
 176                 return;
 177         }
 178         current_fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
 179
 180         if (catastrophic)
 181                 com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps");
 182         else {
 183                 retval = ext2fs_read_inode_bitmap(current_fs);
 184                 if (retval) {
 185                         com_err(device, retval, "while reading inode bitmap");
 186                         goto errout;
 187                 }
 188                 retval = ext2fs_read_block_bitmap(current_fs);
 189                 if (retval) {
 190                         com_err(device, retval, "while reading block bitmap");
 191                         goto errout;
 192                 }
 193         }
 194
 195         if (data_io) {
 196                 retval = ext2fs_set_data_io(current_fs, data_io);
 197                 if (retval) {
 198                         com_err(device, retval,
 199                                 "while setting data source");
 200                         goto errout;
 201                 }
 202         }
 203
 204         root = cwd = EXT2_ROOT_INO;
 205         return;
 206
 207 errout:
 208         retval = ext2fs_close_free(&current_fs);
 209         if (retval)
 210                 com_err(device, retval, "while trying to close filesystem");
 211 }
 212
 213 void do_open_filesys(int argc, char **argv)
 214 {
 215         int     c, err;
 216         int     catastrophic = 0;
 217         blk64_t superblock = 0;
 218         blk64_t blocksize = 0;
 219         int     open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
 220         char    *data_filename = 0;
 221         char    *undo_file = NULL;
 222
 223         reset_getopt();
 224         while ((c = getopt(argc, argv, "iwfecb:s:d:Dz:")) != EOF) {
 225                 switch (c) {
 226                 case 'i':
 227                         open_flags |= EXT2_FLAG_IMAGE_FILE;
 228                         break;
 229                 case 'w':
 230 #ifdef READ_ONLY
 231                         goto print_usage;
 232 #else
 233                         open_flags |= EXT2_FLAG_RW;
 234 #endif /* READ_ONLY */
 235                         break;
 236                 case 'f':
 237                         open_flags |= EXT2_FLAG_FORCE;
 238                         break;
 239                 case 'e':
 240                         open_flags |= EXT2_FLAG_EXCLUSIVE;
 241                         break;
 242                 case 'c':
 243                         catastrophic = 1;
 244                         break;
 245                 case 'd':
 246                         data_filename = optarg;
 247                         break;
 248                 case 'D':
 249                         open_flags |= EXT2_FLAG_DIRECT_IO;
 250                         break;
 251                 case 'b':
 252                         blocksize = parse_ulong(optarg, argv[0],
 253                                                 "block size", &err);
 254                         if (err)
 255                                 return;
 256                         break;
 257                 case 's':
 258                         err = strtoblk(argv[0], optarg,
 259                                        "superblock block number", &superblock);
 260                         if (err)
 261                                 return;
 262                         break;
 263                 case 'z':
 264                         undo_file = optarg;
 265                         break;
 266                 default:
 267                         goto print_usage;
 268                 }
 269         }
 270         if (optind != argc-1) {
 271                 goto print_usage;
 272         }
 273         if (check_fs_not_open(argv[0]))
 274                 return;
 275         open_filesystem(argv[optind], open_flags,
 276                         superblock, blocksize, catastrophic,
 277                         data_filename, undo_file);
 278         return;
 279
 280 print_usage:
 281         fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] "
 282                 "[-d image_filename] [-c] [-i] [-f] [-e] [-D] "
 283 #ifndef READ_ONLY
 284                 "[-w] "
 285 #endif
 286                 "<device>\n", argv[0]);
 287 }
 288
 289 void do_lcd(int argc, char **argv)
 290 {
 291         if (argc != 2) {
 292                 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>");
 293                 return;
 294         }
 295
 296         if (chdir(argv[1]) == -1) {
 297                 com_err(argv[0], errno,
 298                         "while trying to change native directory to %s",
 299                         argv[1]);
 300                 return;
 301         }
 302 }
 303
 304 static void close_filesystem(NOARGS)
 305 {
 306         int     retval;
 307
 308         if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
 309                 retval = ext2fs_write_inode_bitmap(current_fs);
 310                 if (retval)
 311                         com_err("ext2fs_write_inode_bitmap", retval, 0);
 312         }
 313         if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
 314                 retval = ext2fs_write_block_bitmap(current_fs);
 315                 if (retval)
 316                         com_err("ext2fs_write_block_bitmap", retval, 0);
 317         }
 318         if (current_qctx)
 319                 quota_release_context(&current_qctx);
 320         retval = ext2fs_close_free(&current_fs);
 321         if (retval)
 322                 com_err("ext2fs_close", retval, 0);
 323         return;
 324 }
 325
 326 void do_close_filesys(int argc, char **argv)
 327 {
 328         int     c;
 329
 330         if (check_fs_open(argv[0]))
 331                 return;
 332
 333         reset_getopt();
 334         while ((c = getopt (argc, argv, "a")) != EOF) {
 335                 switch (c) {
 336                 case 'a':
 337                         current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
 338                         break;
 339                 default:
 340                         goto print_usage;
 341                 }
 342         }
 343
 344         if (argc > optind) {
 345         print_usage:
 346                 com_err(0, 0, "Usage: close_filesys [-a]");
 347                 return;
 348         }
 349
 350         close_filesystem();
 351 }
 352
 353 #ifndef READ_ONLY
 354 void do_init_filesys(int argc, char **argv)
 355 {
 356         struct ext2_super_block param;
 357         errcode_t       retval;
 358         int             err;
 359         blk64_t         blocks;
 360
 361         if (common_args_process(argc, argv, 3, 3, "initialize",
 362                                 "<device> <blocks>", CHECK_FS_NOTOPEN))
 363                 return;
 364
 365         memset(&param, 0, sizeof(struct ext2_super_block));
 366         err = strtoblk(argv[0], argv[2], "blocks count", &blocks);
 367         if (err)
 368                 return;
 369         ext2fs_blocks_count_set(&param, blocks);
 370         retval = ext2fs_initialize(argv[1], 0, &param,
 371                                    unix_io_manager, &current_fs);
 372         if (retval) {
 373                 com_err(argv[1], retval, "while initializing filesystem");
 374                 current_fs = NULL;
 375                 return;
 376         }
 377         root = cwd = EXT2_ROOT_INO;
 378         return;
 379 }
 380
 381 static void print_features(struct ext2_super_block * s, FILE *f)
 382 {
 383         int     i, j, printed=0;
 384         __u32   *mask = &s->s_feature_compat, m;
 385
 386         fputs("Filesystem features:", f);
 387         for (i=0; i <3; i++,mask++) {
 388                 for (j=0,m=1; j < 32; j++, m<<=1) {
 389                         if (*mask & m) {
 390                                 fprintf(f, " %s", e2p_feature2string(i, m));
 391                                 printed++;
 392                         }
 393                 }
 394         }
 395         if (printed == 0)
 396                 fputs("(none)", f);
 397         fputs("\n", f);
 398 }
 399 #endif /* READ_ONLY */
 400
 401 static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask,
 402                           const char *str, int *first, FILE *f)
 403 {
 404         if (ext2fs_bg_flags_test(fs, group, mask)) {
 405                 if (*first) {
 406                         fputs("           [", f);
 407                         *first = 0;
 408                 } else
 409                         fputs(", ", f);
 410                 fputs(str, f);
 411         }
 412 }
 413
 414 void do_show_super_stats(int argc, char *argv[])
 415 {
 416         const char *units ="block";
 417         dgrp_t  i;
 418         FILE    *out;
 419         int     c, header_only = 0;
 420         int     numdirs = 0, first, gdt_csum;
 421
 422         reset_getopt();
 423         while ((c = getopt (argc, argv, "h")) != EOF) {
 424                 switch (c) {
 425                 case 'h':
 426                         header_only++;
 427                         break;
 428                 default:
 429                         goto print_usage;
 430                 }
 431         }
 432         if (optind != argc) {
 433                 goto print_usage;
 434         }
 435         if (check_fs_open(argv[0]))
 436                 return;
 437         out = open_pager();
 438
 439         if (EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super,
 440                                        EXT4_FEATURE_RO_COMPAT_BIGALLOC))
 441                 units = "cluster";
 442
 443         list_super2(current_fs->super, out);
 444         for (i=0; i < current_fs->group_desc_count; i++)
 445                 numdirs += ext2fs_bg_used_dirs_count(current_fs, i);
 446         fprintf(out, "Directories:              %d\n", numdirs);
 447
 448         if (header_only) {
 449                 close_pager(out);
 450                 return;
 451         }
 452
 453         gdt_csum = ext2fs_has_group_desc_csum(current_fs);
 454         for (i = 0; i < current_fs->group_desc_count; i++) {
 455                 fprintf(out, " Group %2d: block bitmap at %llu, "
 456                         "inode bitmap at %llu, "
 457                         "inode table at %llu\n"
 458                         "           %u free %s%s, "
 459                         "%u free %s, "
 460                         "%u used %s%s",
 461                         i, ext2fs_block_bitmap_loc(current_fs, i),
 462                         ext2fs_inode_bitmap_loc(current_fs, i),
 463                         ext2fs_inode_table_loc(current_fs, i),
 464                         ext2fs_bg_free_blocks_count(current_fs, i), units,
 465                         ext2fs_bg_free_blocks_count(current_fs, i) != 1 ?
 466                         "s" : "",
 467                         ext2fs_bg_free_inodes_count(current_fs, i),
 468                         ext2fs_bg_free_inodes_count(current_fs, i) != 1 ?
 469                         "inodes" : "inode",
 470                         ext2fs_bg_used_dirs_count(current_fs, i),
 471                         ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories"
 472                                 : "directory", gdt_csum ? ", " : "\n");
 473                 if (gdt_csum)
 474                         fprintf(out, "%u unused %s\n",
 475                                 ext2fs_bg_itable_unused(current_fs, i),
 476                                 ext2fs_bg_itable_unused(current_fs, i) != 1 ?
 477                                 "inodes" : "inode");
 478                 first = 1;
 479                 print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init",
 480                               &first, out);
 481                 print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init",
 482                               &first, out);
 483                 if (gdt_csum) {
 484                         fprintf(out, "%sChecksum 0x%04x",
 485                                 first ? "           [":", ", ext2fs_bg_checksum(current_fs, i));
 486                         first = 0;
 487                 }
 488                 if (!first)
 489                         fputs("]\n", out);
 490         }
 491         close_pager(out);
 492         return;
 493 print_usage:
 494         fprintf(stderr, "%s: Usage: show_super [-h]\n", argv[0]);
 495 }
 496
 497 #ifndef READ_ONLY
 498 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
 499                       char **argv EXT2FS_ATTR((unused)))
 500 {
 501         if (check_fs_open(argv[0]))
 502                 return;
 503         if (check_fs_read_write(argv[0]))
 504                 return;
 505
 506         if (argv[1] && !strcmp(argv[1], "-clean"))
 507                 current_fs->super->s_state |= EXT2_VALID_FS;
 508         else
 509                 current_fs->super->s_state &= ~EXT2_VALID_FS;
 510         ext2fs_mark_super_dirty(current_fs);
 511 }
 512 #endif /* READ_ONLY */
 513
 514 struct list_blocks_struct {
 515         FILE            *f;
 516         e2_blkcnt_t     total;
 517         blk64_t         first_block, last_block;
 518         e2_blkcnt_t     first_bcnt, last_bcnt;
 519         e2_blkcnt_t     first;
 520 };
 521
 522 static void finish_range(struct list_blocks_struct *lb)
 523 {
 524         if (lb->first_block == 0)
 525                 return;
 526         if (lb->first)
 527                 lb->first = 0;
 528         else
 529                 fprintf(lb->f, ", ");
 530         if (lb->first_block == lb->last_block)
 531                 fprintf(lb->f, "(%lld):%llu",
 532                         (long long)lb->first_bcnt, lb->first_block);
 533         else
 534                 fprintf(lb->f, "(%lld-%lld):%llu-%llu",
 535                         (long long)lb->first_bcnt, (long long)lb->last_bcnt,
 536                         lb->first_block, lb->last_block);
 537         lb->first_block = 0;
 538 }
 539
 540 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
 541                             blk64_t *blocknr, e2_blkcnt_t blockcnt,
 542                             blk64_t ref_block EXT2FS_ATTR((unused)),
 543                             int ref_offset EXT2FS_ATTR((unused)),
 544                             void *private)
 545 {
 546         struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
 547
 548         lb->total++;
 549         if (blockcnt >= 0) {
 550                 /*
 551                  * See if we can add on to the existing range (if it exists)
 552                  */
 553                 if (lb->first_block &&
 554                     (lb->last_block+1 == *blocknr) &&
 555                     (lb->last_bcnt+1 == blockcnt)) {
 556                         lb->last_block = *blocknr;
 557                         lb->last_bcnt = blockcnt;
 558                         return 0;
 559                 }
 560                 /*
 561                  * Start a new range.
 562                  */
 563                 finish_range(lb);
 564                 lb->first_block = lb->last_block = *blocknr;
 565                 lb->first_bcnt = lb->last_bcnt = blockcnt;
 566                 return 0;
 567         }
 568         /*
 569          * Not a normal block.  Always force a new range.
 570          */
 571         finish_range(lb);
 572         if (lb->first)
 573                 lb->first = 0;
 574         else
 575                 fprintf(lb->f, ", ");
 576         if (blockcnt == -1)
 577                 fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr);
 578         else if (blockcnt == -2)
 579                 fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr);
 580         else if (blockcnt == -3)
 581                 fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr);
 582         return 0;
 583 }
 584
 585 static void internal_dump_inode_extra(FILE *out,
 586                                       const char *prefix EXT2FS_ATTR((unused)),
 587                                       ext2_ino_t inode_num EXT2FS_ATTR((unused)),
 588                                       struct ext2_inode_large *inode)
 589 {
 590         fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
 591         if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
 592                         EXT2_GOOD_OLD_INODE_SIZE) {
 593                 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
 594                                 inode->i_extra_isize);
 595                 return;
 596         }
 597 }
 598
 599 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
 600 {
 601         struct list_blocks_struct lb;
 602
 603         fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
 604         lb.total = 0;
 605         lb.first_block = 0;
 606         lb.f = f;
 607         lb.first = 1;
 608         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
 609                               list_blocks_proc, (void *)&lb);
 610         finish_range(&lb);
 611         if (lb.total)
 612                 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
 613         fprintf(f,"\n");
 614 }
 615
 616 static int int_log10(unsigned long long arg)
 617 {
 618         int     l = 0;
 619
 620         arg = arg / 10;
 621         while (arg) {
 622                 l++;
 623                 arg = arg / 10;
 624         }
 625         return l;
 626 }
 627
 628 #define DUMP_LEAF_EXTENTS       0x01
 629 #define DUMP_NODE_EXTENTS       0x02
 630 #define DUMP_EXTENT_TABLE       0x04
 631
 632 static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino,
 633                          int flags, int logical_width, int physical_width)
 634 {
 635         ext2_extent_handle_t    handle;
 636         struct ext2fs_extent    extent;
 637         struct ext2_extent_info info;
 638         int                     op = EXT2_EXTENT_ROOT;
 639         unsigned int            printed = 0;
 640         errcode_t               errcode;
 641
 642         errcode = ext2fs_extent_open(current_fs, ino, &handle);
 643         if (errcode)
 644                 return;
 645
 646         if (flags & DUMP_EXTENT_TABLE)
 647                 fprintf(f, "Level Entries %*s %*s Length Flags\n",
 648                         (logical_width*2)+3, "Logical",
 649                         (physical_width*2)+3, "Physical");
 650         else
 651                 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix);
 652
 653         while (1) {
 654                 errcode = ext2fs_extent_get(handle, op, &extent);
 655
 656                 if (errcode)
 657                         break;
 658
 659                 op = EXT2_EXTENT_NEXT;
 660
 661                 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 662                         continue;
 663
 664                 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
 665                         if ((flags & DUMP_LEAF_EXTENTS) == 0)
 666                                 continue;
 667                 } else {
 668                         if ((flags & DUMP_NODE_EXTENTS) == 0)
 669                                 continue;
 670                 }
 671
 672                 errcode = ext2fs_extent_get_info(handle, &info);
 673                 if (errcode)
 674                         continue;
 675
 676                 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) {
 677                         if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 678                                 continue;
 679
 680                         if (flags & DUMP_EXTENT_TABLE) {
 681                                 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 682                                         "%*llu%*s %6u\n",
 683                                         info.curr_level, info.max_depth,
 684                                         info.curr_entry, info.num_entries,
 685                                         logical_width,
 686                                         extent.e_lblk,
 687                                         logical_width,
 688                                         extent.e_lblk + (extent.e_len - 1),
 689                                         physical_width,
 690                                         extent.e_pblk,
 691                                         physical_width+3, "", extent.e_len);
 692                                 continue;
 693                         }
 694
 695                         fprintf(f, "%s(ETB%d):%lld",
 696                                 printed ? ", " : "", info.curr_level,
 697                                 extent.e_pblk);
 698                         printed = 1;
 699                         continue;
 700                 }
 701
 702                 if (flags & DUMP_EXTENT_TABLE) {
 703                         fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 704                                 "%*llu - %*llu %6u %s\n",
 705                                 info.curr_level, info.max_depth,
 706                                 info.curr_entry, info.num_entries,
 707                                 logical_width,
 708                                 extent.e_lblk,
 709                                 logical_width,
 710                                 extent.e_lblk + (extent.e_len - 1),
 711                                 physical_width,
 712                                 extent.e_pblk,
 713                                 physical_width,
 714                                 extent.e_pblk + (extent.e_len - 1),
 715                                 extent.e_len,
 716                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 717                                         "Uninit" : "");
 718                         continue;
 719                 }
 720
 721                 if (extent.e_len == 0)
 722                         continue;
 723                 else if (extent.e_len == 1)
 724                         fprintf(f,
 725                                 "%s(%lld%s):%lld",
 726                                 printed ? ", " : "",
 727                                 extent.e_lblk,
 728                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 729                                 "[u]" : "",
 730                                 extent.e_pblk);
 731                 else
 732                         fprintf(f,
 733                                 "%s(%lld-%lld%s):%lld-%lld",
 734                                 printed ? ", " : "",
 735                                 extent.e_lblk,
 736                                 extent.e_lblk + (extent.e_len - 1),
 737                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 738                                         "[u]" : "",
 739                                 extent.e_pblk,
 740                                 extent.e_pblk + (extent.e_len - 1));
 741                 printed = 1;
 742         }
 743         if (printed)
 744                 fprintf(f, "\n");
 745         ext2fs_extent_free(handle);
 746 }
 747
 748 static void dump_inline_data(FILE *out, const char *prefix, ext2_ino_t inode_num)
 749 {
 750         errcode_t retval;
 751         size_t size;
 752
 753         retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
 754         if (!retval)
 755                 fprintf(out, "%sSize of inline data: %zu\n", prefix, size);
 756 }
 757
 758 static void dump_fast_link(FILE *out, ext2_ino_t inode_num,
 759                            struct ext2_inode *inode, const char *prefix)
 760 {
 761         errcode_t retval = 0;
 762         char *buf;
 763         size_t size;
 764
 765         if (inode->i_flags & EXT4_INLINE_DATA_FL) {
 766                 retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
 767                 if (retval)
 768                         goto out;
 769
 770                 retval = ext2fs_get_memzero(size + 1, &buf);
 771                 if (retval)
 772                         goto out;
 773
 774                 retval = ext2fs_inline_data_get(current_fs, inode_num,
 775                                                 inode, buf, &size);
 776                 if (retval)
 777                         goto out;
 778                 fprintf(out, "%sFast link dest: \"%.*s\"\n", prefix,
 779                         (int)size, buf);
 780
 781                 retval = ext2fs_free_mem(&buf);
 782                 if (retval)
 783                         goto out;
 784         } else {
 785                 int sz = EXT2_I_SIZE(inode);
 786
 787                 if (sz > sizeof(inode->i_block))
 788                         sz = sizeof(inode->i_block);
 789                 fprintf(out, "%sFast link dest: \"%.*s\"\n", prefix, sz,
 790                         (char *)inode->i_block);
 791         }
 792 out:
 793         if (retval)
 794                 com_err(__func__, retval, "while dumping link destination");
 795 }
 796
 797 void internal_dump_inode(FILE *out, const char *prefix,
 798                          ext2_ino_t inode_num, struct ext2_inode *inode,
 799                          int do_dump_blocks)
 800 {
 801         const char *i_type;
 802         char frag, fsize;
 803         int os = current_fs->super->s_creator_os;
 804         struct ext2_inode_large *large_inode;
 805         int is_large_inode = 0;
 806
 807         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 808                 is_large_inode = 1;
 809         large_inode = (struct ext2_inode_large *) inode;
 810
 811         if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
 812         else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
 813         else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
 814         else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
 815         else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
 816         else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
 817         else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
 818         else i_type = "bad type";
 819         fprintf(out, "%sInode: %u   Type: %s    ", prefix, inode_num, i_type);
 820         fprintf(out, "%sMode:  %04o   Flags: 0x%x\n",
 821                 prefix, inode->i_mode & 0777, inode->i_flags);
 822         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 823                 fprintf(out, "%sGeneration: %u    Version: 0x%08x:%08x\n",
 824                         prefix, inode->i_generation, large_inode->i_version_hi,
 825                         inode->osd1.linux1.l_i_version);
 826         } else {
 827                 fprintf(out, "%sGeneration: %u    Version: 0x%08x\n", prefix,
 828                         inode->i_generation, inode->osd1.linux1.l_i_version);
 829         }
 830         fprintf(out, "%sUser: %5d   Group: %5d   Size: ",
 831                 prefix, inode_uid(*inode), inode_gid(*inode));
 832         if (LINUX_S_ISREG(inode->i_mode))
 833                 fprintf(out, "%llu\n", EXT2_I_SIZE(inode));
 834         else
 835                 fprintf(out, "%d\n", inode->i_size);
 836         if (os == EXT2_OS_HURD)
 837                 fprintf(out,
 838                         "%sFile ACL: %d    Directory ACL: %d Translator: %d\n",
 839                         prefix,
 840                         inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0,
 841                         inode->osd1.hurd1.h_i_translator);
 842         else
 843                 fprintf(out, "%sFile ACL: %llu    Directory ACL: %d\n",
 844                         prefix,
 845                         inode->i_file_acl | ((long long)
 846                                 (inode->osd2.linux2.l_i_file_acl_high) << 32),
 847                         LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0);
 848         if (os == EXT2_OS_LINUX)
 849                 fprintf(out, "%sLinks: %d   Blockcount: %llu\n",
 850                         prefix, inode->i_links_count,
 851                         (((unsigned long long)
 852                           inode->osd2.linux2.l_i_blocks_hi << 32)) +
 853                         inode->i_blocks);
 854         else
 855                 fprintf(out, "%sLinks: %d   Blockcount: %u\n",
 856                         prefix, inode->i_links_count, inode->i_blocks);
 857         switch (os) {
 858             case EXT2_OS_HURD:
 859                 frag = inode->osd2.hurd2.h_i_frag;
 860                 fsize = inode->osd2.hurd2.h_i_fsize;
 861                 break;
 862             default:
 863                 frag = fsize = 0;
 864         }
 865         fprintf(out, "%sFragment:  Address: %d    Number: %d    Size: %d\n",
 866                 prefix, inode->i_faddr, frag, fsize);
 867         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 868                 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
 869                         inode->i_ctime, large_inode->i_ctime_extra,
 870                         time_to_string(inode->i_ctime));
 871                 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
 872                         inode->i_atime, large_inode->i_atime_extra,
 873                         time_to_string(inode->i_atime));
 874                 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
 875                         inode->i_mtime, large_inode->i_mtime_extra,
 876                         time_to_string(inode->i_mtime));
 877                 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
 878                         large_inode->i_crtime, large_inode->i_crtime_extra,
 879                         time_to_string(large_inode->i_crtime));
 880         } else {
 881                 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
 882                         time_to_string(inode->i_ctime));
 883                 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
 884                         time_to_string(inode->i_atime));
 885                 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
 886                         time_to_string(inode->i_mtime));
 887         }
 888         if (inode->i_dtime)
 889           fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime,
 890                   time_to_string(inode->i_dtime));
 891         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 892                 internal_dump_inode_extra(out, prefix, inode_num,
 893                                           (struct ext2_inode_large *) inode);
 894         dump_inode_attributes(out, inode_num);
 895         if (current_fs->super->s_creator_os == EXT2_OS_LINUX &&
 896             current_fs->super->s_feature_ro_compat &
 897                 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) {
 898                 __u32 crc = inode->i_checksum_lo;
 899                 if (is_large_inode &&
 900                     large_inode->i_extra_isize >=
 901                                 (offsetof(struct ext2_inode_large,
 902                                           i_checksum_hi) -
 903                                  EXT2_GOOD_OLD_INODE_SIZE))
 904                         crc |= ((__u32)large_inode->i_checksum_hi) << 16;
 905                 fprintf(out, "Inode checksum: 0x%08x\n", crc);
 906         }
 907
 908         if (LINUX_S_ISLNK(inode->i_mode) &&
 909             ext2fs_inode_data_blocks(current_fs, inode) == 0)
 910                 dump_fast_link(out, inode_num, inode, prefix);
 911         else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
 912                 int major, minor;
 913                 const char *devnote;
 914
 915                 if (inode->i_block[0]) {
 916                         major = (inode->i_block[0] >> 8) & 255;
 917                         minor = inode->i_block[0] & 255;
 918                         devnote = "";
 919                 } else {
 920                         major = (inode->i_block[1] & 0xfff00) >> 8;
 921                         minor = ((inode->i_block[1] & 0xff) |
 922                                  ((inode->i_block[1] >> 12) & 0xfff00));
 923                         devnote = "(New-style) ";
 924                 }
 925                 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
 926                         devnote, major, minor, major, minor);
 927         } else if (do_dump_blocks) {
 928                 if (inode->i_flags & EXT4_EXTENTS_FL)
 929                         dump_extents(out, prefix, inode_num,
 930                                      DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0);
 931                 else if (inode->i_flags & EXT4_INLINE_DATA_FL)
 932                         dump_inline_data(out, prefix, inode_num);
 933                 else
 934                         dump_blocks(out, prefix, inode_num);
 935         }
 936 }
 937
 938 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
 939 {
 940         FILE    *out;
 941
 942         out = open_pager();
 943         internal_dump_inode(out, "", inode_num, inode, 1);
 944         close_pager(out);
 945 }
 946
 947 void do_stat(int argc, char *argv[])
 948 {
 949         ext2_ino_t      inode;
 950         struct ext2_inode * inode_buf;
 951
 952         if (check_fs_open(argv[0]))
 953                 return;
 954
 955         inode_buf = (struct ext2_inode *)
 956                         malloc(EXT2_INODE_SIZE(current_fs->super));
 957         if (!inode_buf) {
 958                 fprintf(stderr, "do_stat: can't allocate buffer\n");
 959                 return;
 960         }
 961
 962         if (common_inode_args_process(argc, argv, &inode, 0)) {
 963                 free(inode_buf);
 964                 return;
 965         }
 966
 967         if (debugfs_read_inode_full(inode, inode_buf, argv[0],
 968                                         EXT2_INODE_SIZE(current_fs->super))) {
 969                 free(inode_buf);
 970                 return;
 971         }
 972
 973         dump_inode(inode, inode_buf);
 974         free(inode_buf);
 975         return;
 976 }
 977
 978 void do_dump_extents(int argc, char **argv)
 979 {
 980         struct ext2_inode inode;
 981         ext2_ino_t      ino;
 982         FILE            *out;
 983         int             c, flags = 0;
 984         int             logical_width;
 985         int             physical_width;
 986
 987         reset_getopt();
 988         while ((c = getopt(argc, argv, "nl")) != EOF) {
 989                 switch (c) {
 990                 case 'n':
 991                         flags |= DUMP_NODE_EXTENTS;
 992                         break;
 993                 case 'l':
 994                         flags |= DUMP_LEAF_EXTENTS;
 995                         break;
 996                 }
 997         }
 998
 999         if (argc != optind + 1) {
1000                 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
1001                 return;
1002         }
1003
1004         if (flags == 0)
1005                 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
1006         flags |= DUMP_EXTENT_TABLE;
1007
1008         if (check_fs_open(argv[0]))
1009                 return;
1010
1011         ino = string_to_inode(argv[optind]);
1012         if (ino == 0)
1013                 return;
1014
1015         if (debugfs_read_inode(ino, &inode, argv[0]))
1016                 return;
1017
1018         if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
1019                 fprintf(stderr, "%s: does not uses extent block maps\n",
1020                         argv[optind]);
1021                 return;
1022         }
1023
1024         logical_width = int_log10((EXT2_I_SIZE(&inode)+current_fs->blocksize-1)/
1025                                   current_fs->blocksize) + 1;
1026         if (logical_width < 5)
1027                 logical_width = 5;
1028         physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1;
1029         if (physical_width < 5)
1030                 physical_width = 5;
1031
1032         out = open_pager();
1033         dump_extents(out, "", ino, flags, logical_width, physical_width);
1034         close_pager(out);
1035         return;
1036 }
1037
1038 static int print_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
1039                              blk64_t *blocknr,
1040                              e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1041                              blk64_t ref_block EXT2FS_ATTR((unused)),
1042                              int ref_offset EXT2FS_ATTR((unused)),
1043                              void *private EXT2FS_ATTR((unused)))
1044 {
1045         printf("%llu ", *blocknr);
1046         return 0;
1047 }
1048
1049 void do_blocks(int argc, char *argv[])
1050 {
1051         ext2_ino_t      inode;
1052
1053         if (check_fs_open(argv[0]))
1054                 return;
1055
1056         if (common_inode_args_process(argc, argv, &inode, 0)) {
1057                 return;
1058         }
1059
1060         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
1061                               print_blocks_proc, NULL);
1062         fputc('\n', stdout);
1063         return;
1064 }
1065
1066 void do_chroot(int argc, char *argv[])
1067 {
1068         ext2_ino_t inode;
1069         int retval;
1070
1071         if (common_inode_args_process(argc, argv, &inode, 0))
1072                 return;
1073
1074         retval = ext2fs_check_directory(current_fs, inode);
1075         if (retval)  {
1076                 com_err(argv[1], retval, 0);
1077                 return;
1078         }
1079         root = inode;
1080 }
1081
1082 #ifndef READ_ONLY
1083 void do_clri(int argc, char *argv[])
1084 {
1085         ext2_ino_t inode;
1086         struct ext2_inode inode_buf;
1087
1088         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1089                 return;
1090
1091         if (debugfs_read_inode(inode, &inode_buf, argv[0]))
1092                 return;
1093         memset(&inode_buf, 0, sizeof(inode_buf));
1094         if (debugfs_write_inode(inode, &inode_buf, argv[0]))
1095                 return;
1096 }
1097
1098 void do_freei(int argc, char *argv[])
1099 {
1100         unsigned int    len = 1;
1101         int             err = 0;
1102         ext2_ino_t      inode;
1103
1104         if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1105                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1106                 return;
1107         if (check_fs_read_write(argv[0]))
1108                 return;
1109
1110         inode = string_to_inode(argv[1]);
1111         if (!inode)
1112                 return;
1113
1114         if (argc == 3) {
1115                 len = parse_ulong(argv[2], argv[0], "length", &err);
1116                 if (err)
1117                         return;
1118         }
1119
1120         if (len == 1 &&
1121             !ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1122                 com_err(argv[0], 0, "Warning: inode already clear");
1123         while (len-- > 0)
1124                 ext2fs_unmark_inode_bitmap2(current_fs->inode_map, inode++);
1125         ext2fs_mark_ib_dirty(current_fs);
1126 }
1127
1128 void do_seti(int argc, char *argv[])
1129 {
1130         unsigned int    len = 1;
1131         int             err = 0;
1132         ext2_ino_t      inode;
1133
1134         if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1135                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1136                 return;
1137         if (check_fs_read_write(argv[0]))
1138                 return;
1139
1140         inode = string_to_inode(argv[1]);
1141         if (!inode)
1142                 return;
1143
1144         if (argc == 3) {
1145                 len = parse_ulong(argv[2], argv[0], "length", &err);
1146                 if (err)
1147                         return;
1148         }
1149
1150         if ((len == 1) &&
1151             ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1152                 com_err(argv[0], 0, "Warning: inode already set");
1153         while (len-- > 0)
1154                 ext2fs_mark_inode_bitmap2(current_fs->inode_map, inode++);
1155         ext2fs_mark_ib_dirty(current_fs);
1156 }
1157 #endif /* READ_ONLY */
1158
1159 void do_testi(int argc, char *argv[])
1160 {
1161         ext2_ino_t inode;
1162
1163         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
1164                 return;
1165
1166         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1167                 printf("Inode %u is marked in use\n", inode);
1168         else
1169                 printf("Inode %u is not in use\n", inode);
1170 }
1171
1172 #ifndef READ_ONLY
1173 void do_freeb(int argc, char *argv[])
1174 {
1175         blk64_t block;
1176         blk64_t count = 1;
1177
1178         if (common_block_args_process(argc, argv, &block, &count))
1179                 return;
1180         if (check_fs_read_write(argv[0]))
1181                 return;
1182         while (count-- > 0) {
1183                 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
1184                         com_err(argv[0], 0, "Warning: block %llu already clear",
1185                                 block);
1186                 ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
1187                 block++;
1188         }
1189         ext2fs_mark_bb_dirty(current_fs);
1190 }
1191
1192 void do_setb(int argc, char *argv[])
1193 {
1194         blk64_t block;
1195         blk64_t count = 1;
1196
1197         if (common_block_args_process(argc, argv, &block, &count))
1198                 return;
1199         if (check_fs_read_write(argv[0]))
1200                 return;
1201         while (count-- > 0) {
1202                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1203                         com_err(argv[0], 0, "Warning: block %llu already set",
1204                                 block);
1205                 ext2fs_mark_block_bitmap2(current_fs->block_map,block);
1206                 block++;
1207         }
1208         ext2fs_mark_bb_dirty(current_fs);
1209 }
1210 #endif /* READ_ONLY */
1211
1212 void do_testb(int argc, char *argv[])
1213 {
1214         blk64_t block;
1215         blk64_t count = 1;
1216
1217         if (common_block_args_process(argc, argv, &block, &count))
1218                 return;
1219         while (count-- > 0) {
1220                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1221                         printf("Block %llu marked in use\n", block);
1222                 else
1223                         printf("Block %llu not in use\n", block);
1224                 block++;
1225         }
1226 }
1227
1228 #ifndef READ_ONLY
1229 static void modify_u8(char *com, const char *prompt,
1230                       const char *format, __u8 *val)
1231 {
1232         char buf[200];
1233         unsigned long v;
1234         char *tmp;
1235
1236         sprintf(buf, format, *val);
1237         printf("%30s    [%s] ", prompt, buf);
1238         if (!fgets(buf, sizeof(buf), stdin))
1239                 return;
1240         if (buf[strlen (buf) - 1] == '\n')
1241                 buf[strlen (buf) - 1] = '\0';
1242         if (!buf[0])
1243                 return;
1244         v = strtoul(buf, &tmp, 0);
1245         if (*tmp)
1246                 com_err(com, 0, "Bad value - %s", buf);
1247         else
1248                 *val = v;
1249 }
1250
1251 static void modify_u16(char *com, const char *prompt,
1252                        const char *format, __u16 *val)
1253 {
1254         char buf[200];
1255         unsigned long v;
1256         char *tmp;
1257
1258         sprintf(buf, format, *val);
1259         printf("%30s    [%s] ", prompt, buf);
1260         if (!fgets(buf, sizeof(buf), stdin))
1261                 return;
1262         if (buf[strlen (buf) - 1] == '\n')
1263                 buf[strlen (buf) - 1] = '\0';
1264         if (!buf[0])
1265                 return;
1266         v = strtoul(buf, &tmp, 0);
1267         if (*tmp)
1268                 com_err(com, 0, "Bad value - %s", buf);
1269         else
1270                 *val = v;
1271 }
1272
1273 static void modify_u32(char *com, const char *prompt,
1274                        const char *format, __u32 *val)
1275 {
1276         char buf[200];
1277         unsigned long v;
1278         char *tmp;
1279
1280         sprintf(buf, format, *val);
1281         printf("%30s    [%s] ", prompt, buf);
1282         if (!fgets(buf, sizeof(buf), stdin))
1283                 return;
1284         if (buf[strlen (buf) - 1] == '\n')
1285                 buf[strlen (buf) - 1] = '\0';
1286         if (!buf[0])
1287                 return;
1288         v = strtoul(buf, &tmp, 0);
1289         if (*tmp)
1290                 com_err(com, 0, "Bad value - %s", buf);
1291         else
1292                 *val = v;
1293 }
1294
1295
1296 void do_modify_inode(int argc, char *argv[])
1297 {
1298         struct ext2_inode inode;
1299         ext2_ino_t      inode_num;
1300         int             i;
1301         unsigned char   *frag, *fsize;
1302         char            buf[80];
1303         int             os;
1304         const char      *hex_format = "0x%x";
1305         const char      *octal_format = "0%o";
1306         const char      *decimal_format = "%d";
1307         const char      *unsignedlong_format = "%lu";
1308
1309         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1310                 return;
1311
1312         os = current_fs->super->s_creator_os;
1313
1314         if (debugfs_read_inode(inode_num, &inode, argv[1]))
1315                 return;
1316
1317         modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1318         modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1319         modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1320         modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1321         modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1322         modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1323         modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1324         modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1325         modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1326         if (os == EXT2_OS_LINUX)
1327                 modify_u16(argv[0], "Block count high", unsignedlong_format,
1328                            &inode.osd2.linux2.l_i_blocks_hi);
1329         modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1330         modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1331         modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1332 #if 0
1333         modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1334 #endif
1335         modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1336         if (LINUX_S_ISDIR(inode.i_mode))
1337                 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
1338         else
1339                 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
1340
1341         if (os == EXT2_OS_HURD)
1342                 modify_u32(argv[0], "Translator Block",
1343                             decimal_format, &inode.osd1.hurd1.h_i_translator);
1344
1345         modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1346         switch (os) {
1347             case EXT2_OS_HURD:
1348                 frag = &inode.osd2.hurd2.h_i_frag;
1349                 fsize = &inode.osd2.hurd2.h_i_fsize;
1350                 break;
1351             default:
1352                 frag = fsize = 0;
1353         }
1354         if (frag)
1355                 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1356         if (fsize)
1357                 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1358
1359         for (i=0;  i < EXT2_NDIR_BLOCKS; i++) {
1360                 sprintf(buf, "Direct Block #%d", i);
1361                 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1362         }
1363         modify_u32(argv[0], "Indirect Block", decimal_format,
1364                     &inode.i_block[EXT2_IND_BLOCK]);
1365         modify_u32(argv[0], "Double Indirect Block", decimal_format,
1366                     &inode.i_block[EXT2_DIND_BLOCK]);
1367         modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1368                     &inode.i_block[EXT2_TIND_BLOCK]);
1369         if (debugfs_write_inode(inode_num, &inode, argv[1]))
1370                 return;
1371 }
1372 #endif /* READ_ONLY */
1373
1374 void do_change_working_dir(int argc, char *argv[])
1375 {
1376         ext2_ino_t      inode;
1377         int             retval;
1378
1379         if (common_inode_args_process(argc, argv, &inode, 0))
1380                 return;
1381
1382         retval = ext2fs_check_directory(current_fs, inode);
1383         if (retval) {
1384                 com_err(argv[1], retval, 0);
1385                 return;
1386         }
1387         cwd = inode;
1388         return;
1389 }
1390
1391 void do_print_working_directory(int argc, char *argv[])
1392 {
1393         int     retval;
1394         char    *pathname = NULL;
1395
1396         if (common_args_process(argc, argv, 1, 1,
1397                                 "print_working_directory", "", 0))
1398                 return;
1399
1400         retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1401         if (retval) {
1402                 com_err(argv[0], retval,
1403                         "while trying to get pathname of cwd");
1404         }
1405         printf("[pwd]   INODE: %6u  PATH: %s\n",
1406                cwd, pathname ? pathname : "NULL");
1407         if (pathname) {
1408                 free(pathname);
1409                 pathname = NULL;
1410         }
1411         retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1412         if (retval) {
1413                 com_err(argv[0], retval,
1414                         "while trying to get pathname of root");
1415         }
1416         printf("[root]  INODE: %6u  PATH: %s\n",
1417                root, pathname ? pathname : "NULL");
1418         if (pathname) {
1419                 free(pathname);
1420                 pathname = NULL;
1421         }
1422         return;
1423 }
1424
1425 #ifndef READ_ONLY
1426 static void make_link(char *sourcename, char *destname)
1427 {
1428         ext2_ino_t      ino;
1429         struct ext2_inode inode;
1430         int             retval;
1431         ext2_ino_t      dir;
1432         char            *dest, *cp, *base_name;
1433
1434         /*
1435          * Get the source inode
1436          */
1437         ino = string_to_inode(sourcename);
1438         if (!ino)
1439                 return;
1440         base_name = strrchr(sourcename, '/');
1441         if (base_name)
1442                 base_name++;
1443         else
1444                 base_name = sourcename;
1445         /*
1446          * Figure out the destination.  First see if it exists and is
1447          * a directory.
1448          */
1449         if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1450                 dest = base_name;
1451         else {
1452                 /*
1453                  * OK, it doesn't exist.  See if it is
1454                  * '<dir>/basename' or 'basename'
1455                  */
1456                 cp = strrchr(destname, '/');
1457                 if (cp) {
1458                         *cp = 0;
1459                         dir = string_to_inode(destname);
1460                         if (!dir)
1461                                 return;
1462                         dest = cp+1;
1463                 } else {
1464                         dir = cwd;
1465                         dest = destname;
1466                 }
1467         }
1468
1469         if (debugfs_read_inode(ino, &inode, sourcename))
1470                 return;
1471
1472         retval = ext2fs_link(current_fs, dir, dest, ino,
1473                              ext2_file_type(inode.i_mode));
1474         if (retval)
1475                 com_err("make_link", retval, 0);
1476         return;
1477 }
1478
1479
1480 void do_link(int argc, char *argv[])
1481 {
1482         if (common_args_process(argc, argv, 3, 3, "link",
1483                                 "<source file> <dest_name>", CHECK_FS_RW))
1484                 return;
1485
1486         make_link(argv[1], argv[2]);
1487 }
1488
1489 static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1490                             e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1491                             blk64_t ref_block EXT2FS_ATTR((unused)),
1492                             int ref_offset EXT2FS_ATTR((unused)),
1493                             void *private EXT2FS_ATTR((unused)))
1494 {
1495         blk64_t block;
1496
1497         block = *blocknr;
1498         ext2fs_block_alloc_stats2(fs, block, +1);
1499         return 0;
1500 }
1501
1502 void do_undel(int argc, char *argv[])
1503 {
1504         ext2_ino_t      ino;
1505         struct ext2_inode inode;
1506
1507         if (common_args_process(argc, argv, 2, 3, "undelete",
1508                                 "<inode_num> [dest_name]",
1509                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1510                 return;
1511
1512         ino = string_to_inode(argv[1]);
1513         if (!ino)
1514                 return;
1515
1516         if (debugfs_read_inode(ino, &inode, argv[1]))
1517                 return;
1518
1519         if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
1520                 com_err(argv[1], 0, "Inode is not marked as deleted");
1521                 return;
1522         }
1523
1524         /*
1525          * XXX this function doesn't handle changing the links count on the
1526          * parent directory when undeleting a directory.
1527          */
1528         inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1529         inode.i_dtime = 0;
1530
1531         if (debugfs_write_inode(ino, &inode, argv[0]))
1532                 return;
1533
1534         ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1535                               mark_blocks_proc, NULL);
1536
1537         ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1538
1539         if (argc > 2)
1540                 make_link(argv[1], argv[2]);
1541 }
1542
1543 static void unlink_file_by_name(char *filename)
1544 {
1545         int             retval;
1546         ext2_ino_t      dir;
1547         char            *base_name;
1548
1549         base_name = strrchr(filename, '/');
1550         if (base_name) {
1551                 *base_name++ = '\0';
1552                 dir = string_to_inode(filename);
1553                 if (!dir)
1554                         return;
1555         } else {
1556                 dir = cwd;
1557                 base_name = filename;
1558         }
1559         retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1560         if (retval)
1561                 com_err("unlink_file_by_name", retval, 0);
1562         return;
1563 }
1564
1565 void do_unlink(int argc, char *argv[])
1566 {
1567         if (common_args_process(argc, argv, 2, 2, "link",
1568                                 "<pathname>", CHECK_FS_RW))
1569                 return;
1570
1571         unlink_file_by_name(argv[1]);
1572 }
1573 #endif /* READ_ONLY */
1574
1575 void do_find_free_block(int argc, char *argv[])
1576 {
1577         blk64_t free_blk, goal, first_free = 0;
1578         int             count;
1579         errcode_t       retval;
1580         char            *tmp;
1581
1582         if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1583                 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1584                 return;
1585         }
1586         if (check_fs_open(argv[0]))
1587                 return;
1588
1589         if (argc > 1) {
1590                 count = strtol(argv[1],&tmp,0);
1591                 if (*tmp) {
1592                         com_err(argv[0], 0, "Bad count - %s", argv[1]);
1593                         return;
1594                 }
1595         } else
1596                 count = 1;
1597
1598         if (argc > 2) {
1599                 goal = strtol(argv[2], &tmp, 0);
1600                 if (*tmp) {
1601                         com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1602                         return;
1603                 }
1604         }
1605         else
1606                 goal = current_fs->super->s_first_data_block;
1607
1608         printf("Free blocks found: ");
1609         free_blk = goal - 1;
1610         while (count-- > 0) {
1611                 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
1612                                            &free_blk);
1613                 if (first_free) {
1614                         if (first_free == free_blk)
1615                                 break;
1616                 } else
1617                         first_free = free_blk;
1618                 if (retval) {
1619                         com_err("ext2fs_new_block", retval, 0);
1620                         return;
1621                 } else
1622                         printf("%llu ", free_blk);
1623         }
1624         printf("\n");
1625 }
1626
1627 void do_find_free_inode(int argc, char *argv[])
1628 {
1629         ext2_ino_t      free_inode, dir;
1630         int             mode;
1631         int             retval;
1632         char            *tmp;
1633
1634         if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1635                 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
1636                 return;
1637         }
1638         if (check_fs_open(argv[0]))
1639                 return;
1640
1641         if (argc > 1) {
1642                 dir = strtol(argv[1], &tmp, 0);
1643                 if (*tmp) {
1644                         com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1645                         return;
1646                 }
1647         }
1648         else
1649                 dir = root;
1650         if (argc > 2) {
1651                 mode = strtol(argv[2], &tmp, 0);
1652                 if (*tmp) {
1653                         com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1654                         return;
1655                 }
1656         } else
1657                 mode = 010755;
1658
1659         retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1660         if (retval)
1661                 com_err("ext2fs_new_inode", retval, 0);
1662         else
1663                 printf("Free inode found: %u\n", free_inode);
1664 }
1665
1666 #ifndef READ_ONLY
1667 void do_write(int argc, char *argv[])
1668 {
1669         errcode_t       retval;
1670
1671         if (common_args_process(argc, argv, 3, 3, "write",
1672                                 "<native file> <new file>", CHECK_FS_RW))
1673                 return;
1674
1675         retval = do_write_internal(current_fs, cwd, argv[1], argv[2], root);
1676         if (retval)
1677                 com_err(argv[0], retval, 0);
1678 }
1679
1680 void do_mknod(int argc, char *argv[])
1681 {
1682         unsigned long   major, minor;
1683         errcode_t       retval;
1684         int             nr;
1685         struct stat     st;
1686
1687         if (check_fs_open(argv[0]))
1688                 return;
1689         if (argc < 3 || argv[2][1]) {
1690         usage:
1691                 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1692                 return;
1693         }
1694
1695         minor = major = 0;
1696         switch (argv[2][0]) {
1697                 case 'p':
1698                         st.st_mode = S_IFIFO;
1699                         nr = 3;
1700                         break;
1701                 case 'c':
1702                         st.st_mode = S_IFCHR;
1703                         nr = 5;
1704                         break;
1705                 case 'b':
1706                         st.st_mode = S_IFBLK;
1707                         nr = 5;
1708                         break;
1709                 default:
1710                         nr = 0;
1711         }
1712
1713         if (nr == 5) {
1714                 major = strtoul(argv[3], argv+3, 0);
1715                 minor = strtoul(argv[4], argv+4, 0);
1716                 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1717                         nr = 0;
1718         }
1719
1720         if (argc != nr)
1721                 goto usage;
1722
1723         st.st_rdev = makedev(major, minor);
1724         retval = do_mknod_internal(current_fs, cwd, argv[1], &st);
1725         if (retval)
1726                 com_err(argv[0], retval, 0);
1727 }
1728
1729 void do_mkdir(int argc, char *argv[])
1730 {
1731         errcode_t retval;
1732
1733         if (common_args_process(argc, argv, 2, 2, "mkdir",
1734                                 "<filename>", CHECK_FS_RW))
1735                 return;
1736
1737         retval = do_mkdir_internal(current_fs, cwd, argv[1], NULL, root);
1738         if (retval)
1739                 com_err(argv[0], retval, 0);
1740
1741 }
1742
1743 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1744                                e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1745                                blk64_t ref_block EXT2FS_ATTR((unused)),
1746                                int ref_offset EXT2FS_ATTR((unused)),
1747                                void *private EXT2FS_ATTR((unused)))
1748 {
1749         blk64_t block;
1750
1751         block = *blocknr;
1752         ext2fs_block_alloc_stats2(fs, block, -1);
1753         return 0;
1754 }
1755
1756 static void kill_file_by_inode(ext2_ino_t inode)
1757 {
1758         struct ext2_inode inode_buf;
1759
1760         if (debugfs_read_inode(inode, &inode_buf, 0))
1761                 return;
1762         inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1763         if (debugfs_write_inode(inode, &inode_buf, 0))
1764                 return;
1765         if (ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf)) {
1766                 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY,
1767                                       NULL, release_blocks_proc, NULL);
1768         }
1769         printf("\n");
1770         ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1771                                   LINUX_S_ISDIR(inode_buf.i_mode));
1772 }
1773
1774
1775 void do_kill_file(int argc, char *argv[])
1776 {
1777         ext2_ino_t inode_num;
1778
1779         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1780                 return;
1781
1782         kill_file_by_inode(inode_num);
1783 }
1784
1785 void do_rm(int argc, char *argv[])
1786 {
1787         int retval;
1788         ext2_ino_t inode_num;
1789         struct ext2_inode inode;
1790
1791         if (common_args_process(argc, argv, 2, 2, "rm",
1792                                 "<filename>", CHECK_FS_RW))
1793                 return;
1794
1795         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1796         if (retval) {
1797                 com_err(argv[0], retval, "while trying to resolve filename");
1798                 return;
1799         }
1800
1801         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1802                 return;
1803
1804         if (LINUX_S_ISDIR(inode.i_mode)) {
1805                 com_err(argv[0], 0, "file is a directory");
1806                 return;
1807         }
1808
1809         --inode.i_links_count;
1810         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1811                 return;
1812
1813         unlink_file_by_name(argv[1]);
1814         if (inode.i_links_count == 0)
1815                 kill_file_by_inode(inode_num);
1816 }
1817
1818 struct rd_struct {
1819         ext2_ino_t      parent;
1820         int             empty;
1821 };
1822
1823 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1824                       int       entry EXT2FS_ATTR((unused)),
1825                       struct ext2_dir_entry *dirent,
1826                       int       offset EXT2FS_ATTR((unused)),
1827                       int       blocksize EXT2FS_ATTR((unused)),
1828                       char      *buf EXT2FS_ATTR((unused)),
1829                       void      *private)
1830 {
1831         struct rd_struct *rds = (struct rd_struct *) private;
1832
1833         if (dirent->inode == 0)
1834                 return 0;
1835         if ((ext2fs_dirent_name_len(dirent) == 1) && (dirent->name[0] == '.'))
1836                 return 0;
1837         if ((ext2fs_dirent_name_len(dirent) == 2) && (dirent->name[0] == '.') &&
1838             (dirent->name[1] == '.')) {
1839                 rds->parent = dirent->inode;
1840                 return 0;
1841         }
1842         rds->empty = 0;
1843         return 0;
1844 }
1845
1846 void do_rmdir(int argc, char *argv[])
1847 {
1848         int retval;
1849         ext2_ino_t inode_num;
1850         struct ext2_inode inode;
1851         struct rd_struct rds;
1852
1853         if (common_args_process(argc, argv, 2, 2, "rmdir",
1854                                 "<filename>", CHECK_FS_RW))
1855                 return;
1856
1857         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1858         if (retval) {
1859                 com_err(argv[0], retval, "while trying to resolve filename");
1860                 return;
1861         }
1862
1863         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1864                 return;
1865
1866         if (!LINUX_S_ISDIR(inode.i_mode)) {
1867                 com_err(argv[0], 0, "file is not a directory");
1868                 return;
1869         }
1870
1871         rds.parent = 0;
1872         rds.empty = 1;
1873
1874         retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1875                                     0, rmdir_proc, &rds);
1876         if (retval) {
1877                 com_err(argv[0], retval, "while iterating over directory");
1878                 return;
1879         }
1880         if (rds.empty == 0) {
1881                 com_err(argv[0], 0, "directory not empty");
1882                 return;
1883         }
1884
1885         inode.i_links_count = 0;
1886         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1887                 return;
1888
1889         unlink_file_by_name(argv[1]);
1890         kill_file_by_inode(inode_num);
1891
1892         if (rds.parent) {
1893                 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
1894                         return;
1895                 if (inode.i_links_count > 1)
1896                         inode.i_links_count--;
1897                 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
1898                         return;
1899         }
1900 }
1901 #endif /* READ_ONLY */
1902
1903 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
1904                             char *argv[] EXT2FS_ATTR((unused)))
1905 {
1906         if (current_fs)
1907                 printf("Open mode: read-%s\n",
1908                        current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
1909         printf("Filesystem in use: %s\n",
1910                current_fs ? current_fs->device_name : "--none--");
1911 }
1912
1913 #ifndef READ_ONLY
1914 void do_expand_dir(int argc, char *argv[])
1915 {
1916         ext2_ino_t inode;
1917         int retval;
1918
1919         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1920                 return;
1921
1922         retval = ext2fs_expand_dir(current_fs, inode);
1923         if (retval)
1924                 com_err("ext2fs_expand_dir", retval, 0);
1925         return;
1926 }
1927
1928 void do_features(int argc, char *argv[])
1929 {
1930         int     i;
1931
1932         if (check_fs_open(argv[0]))
1933                 return;
1934
1935         if ((argc != 1) && check_fs_read_write(argv[0]))
1936                 return;
1937         for (i=1; i < argc; i++) {
1938                 if (e2p_edit_feature(argv[i],
1939                                      &current_fs->super->s_feature_compat, 0))
1940                         com_err(argv[0], 0, "Unknown feature: %s\n",
1941                                 argv[i]);
1942                 else
1943                         ext2fs_mark_super_dirty(current_fs);
1944         }
1945         print_features(current_fs->super, stdout);
1946 }
1947 #endif /* READ_ONLY */
1948
1949 void do_bmap(int argc, char *argv[])
1950 {
1951         ext2_ino_t      ino;
1952         blk64_t         blk, pblk = 0;
1953         int             c, err, flags = 0, ret_flags = 0;
1954         errcode_t       errcode;
1955
1956         if (check_fs_open(argv[0]))
1957                 return;
1958
1959         reset_getopt();
1960         while ((c = getopt (argc, argv, "a")) != EOF) {
1961                 switch (c) {
1962                 case 'a':
1963                         flags |= BMAP_ALLOC;
1964                         break;
1965                 default:
1966                         goto print_usage;
1967                 }
1968         }
1969
1970         if (argc <= optind+1) {
1971         print_usage:
1972                 com_err(0, 0,
1973                         "Usage: bmap [-a] <file> logical_blk [physical_blk]");
1974                 return;
1975         }
1976
1977         ino = string_to_inode(argv[optind++]);
1978         if (!ino)
1979                 return;
1980         err = strtoblk(argv[0], argv[optind++], "logical block", &blk);
1981         if (err)
1982                 return;
1983
1984         if (argc > optind+1)
1985                 goto print_usage;
1986
1987         if (argc == optind+1) {
1988                 err = strtoblk(argv[0], argv[optind++],
1989                                "physical block", &pblk);
1990                 if (err)
1991                         return;
1992                 if (flags & BMAP_ALLOC) {
1993                         com_err(0, 0, "Can't set and allocate a block");
1994                         return;
1995                 }
1996                 flags |= BMAP_SET;
1997         }
1998
1999         errcode = ext2fs_bmap2(current_fs, ino, 0, 0, flags, blk,
2000                                &ret_flags, &pblk);
2001         if (errcode) {
2002                 com_err(argv[0], errcode,
2003                         "while mapping logical block %llu\n", blk);
2004                 return;
2005         }
2006         printf("%llu", pblk);
2007         if (ret_flags & BMAP_RET_UNINIT)
2008                 fputs(" (uninit)", stdout);
2009         fputc('\n', stdout);
2010 }
2011
2012 void do_imap(int argc, char *argv[])
2013 {
2014         ext2_ino_t      ino;
2015         unsigned long   group, block, block_nr, offset;
2016
2017         if (common_args_process(argc, argv, 2, 2, argv[0],
2018                                 "<file>", 0))
2019                 return;
2020         ino = string_to_inode(argv[1]);
2021         if (!ino)
2022                 return;
2023
2024         group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
2025         offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
2026                 EXT2_INODE_SIZE(current_fs->super);
2027         block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
2028         if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
2029                 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
2030                         group);
2031                 return;
2032         }
2033         block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
2034                 block;
2035         offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
2036
2037         printf("Inode %d is part of block group %lu\n"
2038                "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
2039                block_nr, offset);
2040
2041 }
2042
2043 void do_idump(int argc, char *argv[])
2044 {
2045         ext2_ino_t      ino;
2046         unsigned char   *buf;
2047         errcode_t       err;
2048         int             isize;
2049
2050         if (common_args_process(argc, argv, 2, 2, argv[0],
2051                                 "<file>", 0))
2052                 return;
2053         ino = string_to_inode(argv[1]);
2054         if (!ino)
2055                 return;
2056
2057         isize = EXT2_INODE_SIZE(current_fs->super);
2058         err = ext2fs_get_mem(isize, &buf);
2059         if (err) {
2060                 com_err(argv[0], err, "while allocating memory");
2061                 return;
2062         }
2063
2064         err = ext2fs_read_inode_full(current_fs, ino,
2065                                      (struct ext2_inode *)buf, isize);
2066         if (err) {
2067                 com_err(argv[0], err, "while reading inode %d", ino);
2068                 goto err;
2069         }
2070
2071         do_byte_hexdump(stdout, buf, isize);
2072 err:
2073         ext2fs_free_mem(&buf);
2074 }
2075
2076 #ifndef READ_ONLY
2077 void do_set_current_time(int argc, char *argv[])
2078 {
2079         time_t now;
2080
2081         if (common_args_process(argc, argv, 2, 2, argv[0],
2082                                 "<time>", 0))
2083                 return;
2084
2085         now = string_to_time(argv[1]);
2086         if (now == ((time_t) -1)) {
2087                 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
2088                         argv[1]);
2089                 return;
2090
2091         } else {
2092                 printf("Setting current time to %s\n", time_to_string(now));
2093                 current_fs->now = now;
2094         }
2095 }
2096 #endif /* READ_ONLY */
2097
2098 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
2099 {
2100         int compat, bit, ret;
2101         unsigned int feature_mask;
2102
2103         if (name) {
2104                 if (feature_type == E2P_FS_FEATURE)
2105                         ret = e2p_string2feature(name, &compat, &feature_mask);
2106                 else
2107                         ret = e2p_jrnl_string2feature(name, &compat,
2108                                                       &feature_mask);
2109                 if (ret)
2110                         return ret;
2111
2112                 if (!(supp[compat] & feature_mask))
2113                         return 1;
2114         } else {
2115                 for (compat = 0; compat < 3; compat++) {
2116                         for (bit = 0, feature_mask = 1; bit < 32;
2117                              bit++, feature_mask <<= 1) {
2118                                 if (supp[compat] & feature_mask) {
2119                                         if (feature_type == E2P_FS_FEATURE)
2120                                                 fprintf(stdout, " %s",
2121                                                 e2p_feature2string(compat,
2122                                                 feature_mask));
2123                                         else
2124                                                 fprintf(stdout, " %s",
2125                                                 e2p_jrnl_feature2string(compat,
2126                                                 feature_mask));
2127                                 }
2128                         }
2129                 }
2130                 fprintf(stdout, "\n");
2131         }
2132
2133         return 0;
2134 }
2135
2136 void do_supported_features(int argc, char *argv[])
2137 {
2138         int     ret;
2139         __u32   supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2140                             EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2141                             EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2142         __u32   jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES,
2143                                  JFS_KNOWN_INCOMPAT_FEATURES,
2144                                  JFS_KNOWN_ROCOMPAT_FEATURES };
2145
2146         if (argc > 1) {
2147                 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2148                 if (ret) {
2149                         ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2150                                                 argv[1]);
2151                 }
2152                 if (ret)
2153                         com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2154                 else
2155                         fprintf(stdout, "Supported feature: %s\n", argv[1]);
2156         } else {
2157                 fprintf(stdout, "Supported features:");
2158                 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2159                 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2160         }
2161 }
2162
2163 #ifndef READ_ONLY
2164 void do_punch(int argc, char *argv[])
2165 {
2166         ext2_ino_t      ino;
2167         blk64_t         start, end;
2168         int             err;
2169         errcode_t       errcode;
2170
2171         if (common_args_process(argc, argv, 3, 4, argv[0],
2172                                 "<file> start_blk [end_blk]",
2173                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
2174                 return;
2175
2176         ino = string_to_inode(argv[1]);
2177         if (!ino)
2178                 return;
2179         err = strtoblk(argv[0], argv[2], "logical block", &start);
2180         if (err)
2181                 return;
2182         if (argc == 4) {
2183                 err = strtoblk(argv[0], argv[3], "logical block", &end);
2184                 if (err)
2185                         return;
2186         } else
2187                 end = ~0;
2188
2189         errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
2190
2191         if (errcode) {
2192                 com_err(argv[0], errcode,
2193                         "while truncating inode %u from %llu to %llu\n", ino,
2194                         (unsigned long long) start, (unsigned long long) end);
2195                 return;
2196         }
2197 }
2198 #endif /* READ_ONLY */
2199
2200 void do_symlink(int argc, char *argv[])
2201 {
2202         errcode_t       retval;
2203
2204         if (common_args_process(argc, argv, 3, 3, "symlink",
2205                                 "<filename> <target>", CHECK_FS_RW))
2206                 return;
2207
2208         retval = do_symlink_internal(current_fs, cwd, argv[1], argv[2], root);
2209         if (retval)
2210                 com_err(argv[0], retval, 0);
2211
2212 }
2213
2214 void do_dump_mmp(int argc EXT2FS_ATTR((unused)), char *argv[])
2215 {
2216 #if CONFIG_MMP
2217         struct mmp_struct *mmp_s;
2218         time_t t;
2219         errcode_t retval = 0;
2220
2221         if (check_fs_open(argv[0]))
2222                 return;
2223
2224         if (current_fs->mmp_buf == NULL) {
2225                 retval = ext2fs_get_mem(current_fs->blocksize,
2226                                         &current_fs->mmp_buf);
2227                 if (retval) {
2228                         com_err(argv[0], retval, "allocating MMP buffer.\n");
2229                         return;
2230                 }
2231         }
2232
2233         mmp_s = current_fs->mmp_buf;
2234
2235         retval = ext2fs_mmp_read(current_fs, current_fs->super->s_mmp_block,
2236                                  current_fs->mmp_buf);
2237         if (retval) {
2238                 com_err(argv[0], retval, "reading MMP block.\n");
2239                 return;
2240         }
2241
2242         t = mmp_s->mmp_time;
2243         fprintf(stdout, "block_number: %llu\n", current_fs->super->s_mmp_block);
2244         fprintf(stdout, "update_interval: %d\n",
2245                 current_fs->super->s_mmp_update_interval);
2246         fprintf(stdout, "check_interval: %d\n", mmp_s->mmp_check_interval);
2247         fprintf(stdout, "sequence: %08x\n", mmp_s->mmp_seq);
2248         fprintf(stdout, "time: %lld -- %s", mmp_s->mmp_time, ctime(&t));
2249         fprintf(stdout, "node_name: %s\n", mmp_s->mmp_nodename);
2250         fprintf(stdout, "device_name: %s\n", mmp_s->mmp_bdevname);
2251         fprintf(stdout, "magic: 0x%x\n", mmp_s->mmp_magic);
2252         fprintf(stdout, "checksum: 0x%08x\n", mmp_s->mmp_checksum);
2253 #else
2254         fprintf(stdout, "MMP is unsupported, please recompile with "
2255                         "--enable-mmp\n");
2256 #endif
2257 }
2258
2259 static int source_file(const char *cmd_file, int ss_idx)
2260 {
2261         FILE            *f;
2262         char            buf[BUFSIZ];
2263         char            *cp;
2264         int             exit_status = 0;
2265         int             retval;
2266
2267         if (strcmp(cmd_file, "-") == 0)
2268                 f = stdin;
2269         else {
2270                 f = fopen(cmd_file, "r");
2271                 if (!f) {
2272                         perror(cmd_file);
2273                         exit(1);
2274                 }
2275         }
2276         fflush(stdout);
2277         fflush(stderr);
2278         setbuf(stdout, NULL);
2279         setbuf(stderr, NULL);
2280         while (!feof(f)) {
2281                 if (fgets(buf, sizeof(buf), f) == NULL)
2282                         break;
2283                 cp = strchr(buf, '\n');
2284                 if (cp)
2285                         *cp = 0;
2286                 cp = strchr(buf, '\r');
2287                 if (cp)
2288                         *cp = 0;
2289                 printf("debugfs: %s\n", buf);
2290                 retval = ss_execute_line(ss_idx, buf);
2291                 if (retval) {
2292                         ss_perror(ss_idx, retval, buf);
2293                         exit_status++;
2294                 }
2295         }
2296         if (f != stdin)
2297                 fclose(f);
2298         return exit_status;
2299 }
2300
2301 int main(int argc, char **argv)
2302 {
2303         int             retval;
2304         const char      *usage =
2305                 "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] "
2306                 "[-R request] [-V] ["
2307 #ifndef READ_ONLY
2308                 "[-w] [-z undo_file] "
2309 #endif
2310                 "[-c] device]";
2311         int             c;
2312         int             open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
2313         char            *request = 0;
2314         int             exit_status = 0;
2315         char            *cmd_file = 0;
2316         blk64_t         superblock = 0;
2317         blk64_t         blocksize = 0;
2318         int             catastrophic = 0;
2319         char            *data_filename = 0;
2320 #ifdef READ_ONLY
2321         const char      *opt_string = "nicR:f:b:s:Vd:D";
2322 #else
2323         const char      *opt_string = "niwcR:f:b:s:Vd:Dz:";
2324         char            *undo_file = NULL;
2325 #endif
2326
2327         if (debug_prog_name == 0)
2328 #ifdef READ_ONLY
2329                 debug_prog_name = "rdebugfs";
2330 #else
2331                 debug_prog_name = "debugfs";
2332 #endif
2333         add_error_table(&et_ext2_error_table);
2334         fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2335                  E2FSPROGS_VERSION, E2FSPROGS_DATE);
2336
2337         while ((c = getopt (argc, argv, opt_string)) != EOF) {
2338                 switch (c) {
2339                 case 'R':
2340                         request = optarg;
2341                         break;
2342                 case 'f':
2343                         cmd_file = optarg;
2344                         break;
2345                 case 'd':
2346                         data_filename = optarg;
2347                         break;
2348                 case 'i':
2349                         open_flags |= EXT2_FLAG_IMAGE_FILE;
2350                         break;
2351                 case 'n':
2352                         open_flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
2353                         break;
2354 #ifndef READ_ONLY
2355                 case 'w':
2356                         open_flags |= EXT2_FLAG_RW;
2357                         break;
2358 #endif
2359                 case 'D':
2360                         open_flags |= EXT2_FLAG_DIRECT_IO;
2361                         break;
2362                 case 'b':
2363                         blocksize = parse_ulong(optarg, argv[0],
2364                                                 "block size", 0);
2365                         break;
2366                 case 's':
2367                         retval = strtoblk(argv[0], optarg,
2368                                           "superblock block number",
2369                                           &superblock);
2370                         if (retval)
2371                                 return 1;
2372                         break;
2373                 case 'c':
2374                         catastrophic = 1;
2375                         break;
2376                 case 'V':
2377                         /* Print version number and exit */
2378                         fprintf(stderr, "\tUsing %s\n",
2379                                 error_message(EXT2_ET_BASE));
2380                         exit(0);
2381                 case 'z':
2382                         undo_file = optarg;
2383                         break;
2384                 default:
2385                         com_err(argv[0], 0, usage, debug_prog_name);
2386                         return 1;
2387                 }
2388         }
2389         if (optind < argc)
2390                 open_filesystem(argv[optind], open_flags,
2391                                 superblock, blocksize, catastrophic,
2392                                 data_filename, undo_file);
2393
2394         sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2395                                        &debug_cmds, &retval);
2396         if (retval) {
2397                 ss_perror(sci_idx, retval, "creating invocation");
2398                 exit(1);
2399         }
2400         ss_get_readline(sci_idx);
2401
2402         (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
2403         if (retval) {
2404                 ss_perror(sci_idx, retval, "adding standard requests");
2405                 exit (1);
2406         }
2407         if (extra_cmds)
2408                 ss_add_request_table (sci_idx, extra_cmds, 1, &retval);
2409         if (retval) {
2410                 ss_perror(sci_idx, retval, "adding extra requests");
2411                 exit (1);
2412         }
2413         if (request) {
2414                 retval = 0;
2415                 retval = ss_execute_line(sci_idx, request);
2416                 if (retval) {
2417                         ss_perror(sci_idx, retval, request);
2418                         exit_status++;
2419                 }
2420         } else if (cmd_file) {
2421                 exit_status = source_file(cmd_file, sci_idx);
2422         } else {
2423                 ss_listen(sci_idx);
2424         }
2425
2426         ss_delete_invocation(sci_idx);
2427
2428         if (current_fs)
2429                 close_filesystem();
2430
2431         remove_error_table(&et_ext2_error_table);
2432         return exit_status;
2433 }