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 <stdio.h>
  12 #include <unistd.h>
  13 #include <stdlib.h>
  14 #include <ctype.h>
  15 #include <string.h>
  16 #include <time.h>
  17 #ifdef HAVE_GETOPT_H
  18 #include <getopt.h>
  19 #else
  20 extern int optind;
  21 extern char *optarg;
  22 #endif
  23 #ifdef HAVE_ERRNO_H
  24 #include <errno.h>
  25 #endif
  26 #include <fcntl.h>
  27 #include <sys/types.h>
  28 #include <sys/stat.h>
  29
  30 #include "et/com_err.h"
  31 #include "ss/ss.h"
  32 #include "debugfs.h"
  33 #include "uuid/uuid.h"
  34 #include "e2p/e2p.h"
  35
  36 #include <ext2fs/ext2_ext_attr.h>
  37
  38 #include "../version.h"
  39 #include "jfs_user.h"
  40
  41 extern ss_request_table debug_cmds;
  42 ss_request_table *extra_cmds;
  43 const char *debug_prog_name;
  44
  45 ext2_filsys     current_fs = NULL;
  46 ext2_ino_t      root, cwd;
  47
  48 static void open_filesystem(char *device, int open_flags, blk64_t superblock,
  49                             blk64_t blocksize, int catastrophic,
  50                             char *data_filename)
  51 {
  52         int     retval;
  53         io_channel data_io = 0;
  54
  55         if (superblock != 0 && blocksize == 0) {
  56                 com_err(device, 0, "if you specify the superblock, you must also specify the block size");
  57                 current_fs = NULL;
  58                 return;
  59         }
  60
  61         if (data_filename) {
  62                 if ((open_flags & EXT2_FLAG_IMAGE_FILE) == 0) {
  63                         com_err(device, 0,
  64                                 "The -d option is only valid when reading an e2image file");
  65                         current_fs = NULL;
  66                         return;
  67                 }
  68                 retval = unix_io_manager->open(data_filename, 0, &data_io);
  69                 if (retval) {
  70                         com_err(data_filename, 0, "while opening data source");
  71                         current_fs = NULL;
  72                         return;
  73                 }
  74         }
  75
  76         if (catastrophic && (open_flags & EXT2_FLAG_RW)) {
  77                 com_err(device, 0,
  78                         "opening read-only because of catastrophic mode");
  79                 open_flags &= ~EXT2_FLAG_RW;
  80         }
  81
  82         retval = ext2fs_open(device, open_flags, superblock, blocksize,
  83                              unix_io_manager, &current_fs);
  84         if (retval) {
  85                 com_err(device, retval, "while opening filesystem");
  86                 current_fs = NULL;
  87                 return;
  88         }
  89
  90         if (catastrophic)
  91                 com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps");
  92         else {
  93                 retval = ext2fs_read_inode_bitmap(current_fs);
  94                 if (retval) {
  95                         com_err(device, retval, "while reading inode bitmap");
  96                         goto errout;
  97                 }
  98                 retval = ext2fs_read_block_bitmap(current_fs);
  99                 if (retval) {
 100                         com_err(device, retval, "while reading block bitmap");
 101                         goto errout;
 102                 }
 103         }
 104
 105         if (data_io) {
 106                 retval = ext2fs_set_data_io(current_fs, data_io);
 107                 if (retval) {
 108                         com_err(device, retval,
 109                                 "while setting data source");
 110                         goto errout;
 111                 }
 112         }
 113
 114         root = cwd = EXT2_ROOT_INO;
 115         return;
 116
 117 errout:
 118         retval = ext2fs_close(current_fs);
 119         if (retval)
 120                 com_err(device, retval, "while trying to close filesystem");
 121         current_fs = NULL;
 122 }
 123
 124 void do_open_filesys(int argc, char **argv)
 125 {
 126         int     c, err;
 127         int     catastrophic = 0;
 128         blk64_t superblock = 0;
 129         blk64_t blocksize = 0;
 130         int     open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
 131         char    *data_filename = 0;
 132
 133         reset_getopt();
 134         while ((c = getopt (argc, argv, "iwfecb:s:d:D")) != EOF) {
 135                 switch (c) {
 136                 case 'i':
 137                         open_flags |= EXT2_FLAG_IMAGE_FILE;
 138                         break;
 139                 case 'w':
 140                         open_flags |= EXT2_FLAG_RW;
 141                         break;
 142                 case 'f':
 143                         open_flags |= EXT2_FLAG_FORCE;
 144                         break;
 145                 case 'e':
 146                         open_flags |= EXT2_FLAG_EXCLUSIVE;
 147                         break;
 148                 case 'c':
 149                         catastrophic = 1;
 150                         break;
 151                 case 'd':
 152                         data_filename = optarg;
 153                         break;
 154                 case 'D':
 155                         open_flags |= EXT2_FLAG_DIRECT_IO;
 156                         break;
 157                 case 'b':
 158                         blocksize = parse_ulong(optarg, argv[0],
 159                                                 "block size", &err);
 160                         if (err)
 161                                 return;
 162                         break;
 163                 case 's':
 164                         superblock = parse_ulong(optarg, argv[0],
 165                                                  "superblock number", &err);
 166                         if (err)
 167                                 return;
 168                         break;
 169                 default:
 170                         goto print_usage;
 171                 }
 172         }
 173         if (optind != argc-1) {
 174                 goto print_usage;
 175         }
 176         if (check_fs_not_open(argv[0]))
 177                 return;
 178         open_filesystem(argv[optind], open_flags,
 179                         superblock, blocksize, catastrophic,
 180                         data_filename);
 181         return;
 182
 183 print_usage:
 184         fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] "
 185                 "[-c] [-w] <device>\n", argv[0]);
 186 }
 187
 188 void do_lcd(int argc, char **argv)
 189 {
 190         if (argc != 2) {
 191                 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>");
 192                 return;
 193         }
 194
 195         if (chdir(argv[1]) == -1) {
 196                 com_err(argv[0], errno,
 197                         "while trying to change native directory to %s",
 198                         argv[1]);
 199                 return;
 200         }
 201 }
 202
 203 static void close_filesystem(NOARGS)
 204 {
 205         int     retval;
 206
 207         if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
 208                 retval = ext2fs_write_inode_bitmap(current_fs);
 209                 if (retval)
 210                         com_err("ext2fs_write_inode_bitmap", retval, 0);
 211         }
 212         if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
 213                 retval = ext2fs_write_block_bitmap(current_fs);
 214                 if (retval)
 215                         com_err("ext2fs_write_block_bitmap", retval, 0);
 216         }
 217         retval = ext2fs_close(current_fs);
 218         if (retval)
 219                 com_err("ext2fs_close", retval, 0);
 220         current_fs = NULL;
 221         return;
 222 }
 223
 224 void do_close_filesys(int argc, char **argv)
 225 {
 226         int     c;
 227
 228         if (check_fs_open(argv[0]))
 229                 return;
 230
 231         reset_getopt();
 232         while ((c = getopt (argc, argv, "a")) != EOF) {
 233                 switch (c) {
 234                 case 'a':
 235                         current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
 236                         break;
 237                 default:
 238                         goto print_usage;
 239                 }
 240         }
 241
 242         if (argc > optind) {
 243         print_usage:
 244                 com_err(0, 0, "Usage: close_filesys [-a]");
 245                 return;
 246         }
 247
 248         close_filesystem();
 249 }
 250
 251 void do_init_filesys(int argc, char **argv)
 252 {
 253         struct ext2_super_block param;
 254         errcode_t       retval;
 255         int             err;
 256
 257         if (common_args_process(argc, argv, 3, 3, "initialize",
 258                                 "<device> <blocksize>", CHECK_FS_NOTOPEN))
 259                 return;
 260
 261         memset(&param, 0, sizeof(struct ext2_super_block));
 262         ext2fs_blocks_count_set(&param, parse_ulong(argv[2], argv[0],
 263                                                     "blocks count", &err));
 264         if (err)
 265                 return;
 266         retval = ext2fs_initialize(argv[1], 0, &param,
 267                                    unix_io_manager, &current_fs);
 268         if (retval) {
 269                 com_err(argv[1], retval, "while initializing filesystem");
 270                 current_fs = NULL;
 271                 return;
 272         }
 273         root = cwd = EXT2_ROOT_INO;
 274         return;
 275 }
 276
 277 static void print_features(struct ext2_super_block * s, FILE *f)
 278 {
 279         int     i, j, printed=0;
 280         __u32   *mask = &s->s_feature_compat, m;
 281
 282         fputs("Filesystem features:", f);
 283         for (i=0; i <3; i++,mask++) {
 284                 for (j=0,m=1; j < 32; j++, m<<=1) {
 285                         if (*mask & m) {
 286                                 fprintf(f, " %s", e2p_feature2string(i, m));
 287                                 printed++;
 288                         }
 289                 }
 290         }
 291         if (printed == 0)
 292                 fputs("(none)", f);
 293         fputs("\n", f);
 294 }
 295
 296 static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask,
 297                           const char *str, int *first, FILE *f)
 298 {
 299         if (ext2fs_bg_flags_test(fs, group, mask)) {
 300                 if (*first) {
 301                         fputs("           [", f);
 302                         *first = 0;
 303                 } else
 304                         fputs(", ", f);
 305                 fputs(str, f);
 306         }
 307 }
 308
 309 void do_show_super_stats(int argc, char *argv[])
 310 {
 311         dgrp_t  i;
 312         FILE    *out;
 313         int     c, header_only = 0;
 314         int     numdirs = 0, first, gdt_csum;
 315
 316         reset_getopt();
 317         while ((c = getopt (argc, argv, "h")) != EOF) {
 318                 switch (c) {
 319                 case 'h':
 320                         header_only++;
 321                         break;
 322                 default:
 323                         goto print_usage;
 324                 }
 325         }
 326         if (optind != argc) {
 327                 goto print_usage;
 328         }
 329         if (check_fs_open(argv[0]))
 330                 return;
 331         out = open_pager();
 332
 333         list_super2(current_fs->super, out);
 334         for (i=0; i < current_fs->group_desc_count; i++)
 335                 numdirs += ext2fs_bg_used_dirs_count(current_fs, i);
 336         fprintf(out, "Directories:              %d\n", numdirs);
 337
 338         if (header_only) {
 339                 close_pager(out);
 340                 return;
 341         }
 342
 343         gdt_csum = EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super,
 344                                               EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
 345         for (i = 0; i < current_fs->group_desc_count; i++) {
 346                 fprintf(out, " Group %2d: block bitmap at %llu, "
 347                         "inode bitmap at %llu, "
 348                         "inode table at %llu\n"
 349                         "           %u free %s, "
 350                         "%u free %s, "
 351                         "%u used %s%s",
 352                         i, ext2fs_block_bitmap_loc(current_fs, i),
 353                         ext2fs_inode_bitmap_loc(current_fs, i),
 354                         ext2fs_inode_table_loc(current_fs, i),
 355                         ext2fs_bg_free_blocks_count(current_fs, i),
 356                         ext2fs_bg_free_blocks_count(current_fs, i) != 1 ?
 357                         "blocks" : "block",
 358                         ext2fs_bg_free_inodes_count(current_fs, i),
 359                         ext2fs_bg_free_inodes_count(current_fs, i) != 1 ?
 360                         "inodes" : "inode",
 361                         ext2fs_bg_used_dirs_count(current_fs, i),
 362                         ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories"
 363                                 : "directory", gdt_csum ? ", " : "\n");
 364                 if (gdt_csum)
 365                         fprintf(out, "%u unused %s\n",
 366                                 ext2fs_bg_itable_unused(current_fs, i),
 367                                 ext2fs_bg_itable_unused(current_fs, i) != 1 ?
 368                                 "inodes" : "inode");
 369                 first = 1;
 370                 print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init",
 371                               &first, out);
 372                 print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init",
 373                               &first, out);
 374                 if (gdt_csum) {
 375                         fprintf(out, "%sChecksum 0x%04x",
 376                                 first ? "           [":", ", ext2fs_bg_checksum(current_fs, i));
 377                         first = 0;
 378                 }
 379                 if (!first)
 380                         fputs("]\n", out);
 381         }
 382         close_pager(out);
 383         return;
 384 print_usage:
 385         fprintf(stderr, "%s: Usage: show_super [-h]\n", argv[0]);
 386 }
 387
 388 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
 389                       char **argv EXT2FS_ATTR((unused)))
 390 {
 391         if (check_fs_open(argv[0]))
 392                 return;
 393         if (check_fs_read_write(argv[0]))
 394                 return;
 395
 396         if (argv[1] && !strcmp(argv[1], "-clean"))
 397                 current_fs->super->s_state |= EXT2_VALID_FS;
 398         else
 399                 current_fs->super->s_state &= ~EXT2_VALID_FS;
 400         ext2fs_mark_super_dirty(current_fs);
 401 }
 402
 403 struct list_blocks_struct {
 404         FILE            *f;
 405         e2_blkcnt_t     total;
 406         blk64_t         first_block, last_block;
 407         e2_blkcnt_t     first_bcnt, last_bcnt;
 408         e2_blkcnt_t     first;
 409 };
 410
 411 static void finish_range(struct list_blocks_struct *lb)
 412 {
 413         if (lb->first_block == 0)
 414                 return;
 415         if (lb->first)
 416                 lb->first = 0;
 417         else
 418                 fprintf(lb->f, ", ");
 419         if (lb->first_block == lb->last_block)
 420                 fprintf(lb->f, "(%lld):%llu",
 421                         (long long)lb->first_bcnt, lb->first_block);
 422         else
 423                 fprintf(lb->f, "(%lld-%lld):%llu-%llu",
 424                         (long long)lb->first_bcnt, (long long)lb->last_bcnt,
 425                         lb->first_block, lb->last_block);
 426         lb->first_block = 0;
 427 }
 428
 429 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
 430                             blk64_t *blocknr, e2_blkcnt_t blockcnt,
 431                             blk64_t ref_block EXT2FS_ATTR((unused)),
 432                             int ref_offset EXT2FS_ATTR((unused)),
 433                             void *private)
 434 {
 435         struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
 436
 437         lb->total++;
 438         if (blockcnt >= 0) {
 439                 /*
 440                  * See if we can add on to the existing range (if it exists)
 441                  */
 442                 if (lb->first_block &&
 443                     (lb->last_block+1 == *blocknr) &&
 444                     (lb->last_bcnt+1 == blockcnt)) {
 445                         lb->last_block = *blocknr;
 446                         lb->last_bcnt = blockcnt;
 447                         return 0;
 448                 }
 449                 /*
 450                  * Start a new range.
 451                  */
 452                 finish_range(lb);
 453                 lb->first_block = lb->last_block = *blocknr;
 454                 lb->first_bcnt = lb->last_bcnt = blockcnt;
 455                 return 0;
 456         }
 457         /*
 458          * Not a normal block.  Always force a new range.
 459          */
 460         finish_range(lb);
 461         if (lb->first)
 462                 lb->first = 0;
 463         else
 464                 fprintf(lb->f, ", ");
 465         if (blockcnt == -1)
 466                 fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr);
 467         else if (blockcnt == -2)
 468                 fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr);
 469         else if (blockcnt == -3)
 470                 fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr);
 471         return 0;
 472 }
 473
 474 static void dump_xattr_string(FILE *out, const char *str, int len)
 475 {
 476         int printable = 0;
 477         int i;
 478
 479         /* check: is string "printable enough?" */
 480         for (i = 0; i < len; i++)
 481                 if (isprint(str[i]))
 482                         printable++;
 483
 484         if (printable <= len*7/8)
 485                 printable = 0;
 486
 487         for (i = 0; i < len; i++)
 488                 if (printable)
 489                         fprintf(out, isprint(str[i]) ? "%c" : "\\%03o",
 490                                 (unsigned char)str[i]);
 491                 else
 492                         fprintf(out, "%02x ", (unsigned char)str[i]);
 493 }
 494
 495 static void internal_dump_inode_extra(FILE *out,
 496                                       const char *prefix EXT2FS_ATTR((unused)),
 497                                       ext2_ino_t inode_num EXT2FS_ATTR((unused)),
 498                                       struct ext2_inode_large *inode)
 499 {
 500         struct ext2_ext_attr_entry *entry;
 501         __u32 *magic;
 502         char *start, *end;
 503         unsigned int storage_size;
 504
 505         fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
 506         if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
 507                         EXT2_GOOD_OLD_INODE_SIZE) {
 508                 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
 509                                 inode->i_extra_isize);
 510                 return;
 511         }
 512         storage_size = EXT2_INODE_SIZE(current_fs->super) -
 513                         EXT2_GOOD_OLD_INODE_SIZE -
 514                         inode->i_extra_isize;
 515         magic = (__u32 *)((char *)inode + EXT2_GOOD_OLD_INODE_SIZE +
 516                         inode->i_extra_isize);
 517         if (*magic == EXT2_EXT_ATTR_MAGIC) {
 518                 fprintf(out, "Extended attributes stored in inode body: \n");
 519                 end = (char *) inode + EXT2_INODE_SIZE(current_fs->super);
 520                 start = (char *) magic + sizeof(__u32);
 521                 entry = (struct ext2_ext_attr_entry *) start;
 522                 while (!EXT2_EXT_IS_LAST_ENTRY(entry)) {
 523                         struct ext2_ext_attr_entry *next =
 524                                 EXT2_EXT_ATTR_NEXT(entry);
 525                         if (entry->e_value_size > storage_size ||
 526                                         (char *) next >= end) {
 527                                 fprintf(out, "invalid EA entry in inode\n");
 528                                 return;
 529                         }
 530                         fprintf(out, "  ");
 531                         dump_xattr_string(out, EXT2_EXT_ATTR_NAME(entry),
 532                                           entry->e_name_len);
 533                         fprintf(out, " = \"");
 534                         dump_xattr_string(out, start + entry->e_value_offs,
 535                                                 entry->e_value_size);
 536                         fprintf(out, "\" (%u)\n", entry->e_value_size);
 537                         entry = next;
 538                 }
 539         }
 540 }
 541
 542 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
 543 {
 544         struct list_blocks_struct lb;
 545
 546         fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
 547         lb.total = 0;
 548         lb.first_block = 0;
 549         lb.f = f;
 550         lb.first = 1;
 551         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
 552                               list_blocks_proc, (void *)&lb);
 553         finish_range(&lb);
 554         if (lb.total)
 555                 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
 556         fprintf(f,"\n");
 557 }
 558
 559 static int int_log10(unsigned long long arg)
 560 {
 561         int     l = 0;
 562
 563         arg = arg / 10;
 564         while (arg) {
 565                 l++;
 566                 arg = arg / 10;
 567         }
 568         return l;
 569 }
 570
 571 #define DUMP_LEAF_EXTENTS       0x01
 572 #define DUMP_NODE_EXTENTS       0x02
 573 #define DUMP_EXTENT_TABLE       0x04
 574
 575 static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino,
 576                          int flags, int logical_width, int physical_width)
 577 {
 578         ext2_extent_handle_t    handle;
 579         struct ext2fs_extent    extent;
 580         struct ext2_extent_info info;
 581         int                     op = EXT2_EXTENT_ROOT;
 582         unsigned int            printed = 0;
 583         errcode_t               errcode;
 584
 585         errcode = ext2fs_extent_open(current_fs, ino, &handle);
 586         if (errcode)
 587                 return;
 588
 589         if (flags & DUMP_EXTENT_TABLE)
 590                 fprintf(f, "Level Entries %*s %*s Length Flags\n",
 591                         (logical_width*2)+3, "Logical",
 592                         (physical_width*2)+3, "Physical");
 593         else
 594                 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix);
 595
 596         while (1) {
 597                 errcode = ext2fs_extent_get(handle, op, &extent);
 598
 599                 if (errcode)
 600                         break;
 601
 602                 op = EXT2_EXTENT_NEXT;
 603
 604                 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 605                         continue;
 606
 607                 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
 608                         if ((flags & DUMP_LEAF_EXTENTS) == 0)
 609                                 continue;
 610                 } else {
 611                         if ((flags & DUMP_NODE_EXTENTS) == 0)
 612                                 continue;
 613                 }
 614
 615                 errcode = ext2fs_extent_get_info(handle, &info);
 616                 if (errcode)
 617                         continue;
 618
 619                 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) {
 620                         if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 621                                 continue;
 622
 623                         if (flags & DUMP_EXTENT_TABLE) {
 624                                 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 625                                         "%*llu%*s %6u\n",
 626                                         info.curr_level, info.max_depth,
 627                                         info.curr_entry, info.num_entries,
 628                                         logical_width,
 629                                         extent.e_lblk,
 630                                         logical_width,
 631                                         extent.e_lblk + (extent.e_len - 1),
 632                                         physical_width,
 633                                         extent.e_pblk,
 634                                         physical_width+3, "", extent.e_len);
 635                                 continue;
 636                         }
 637
 638                         fprintf(f, "%s(ETB%d):%lld",
 639                                 printed ? ", " : "", info.curr_level,
 640                                 extent.e_pblk);
 641                         printed = 1;
 642                         continue;
 643                 }
 644
 645                 if (flags & DUMP_EXTENT_TABLE) {
 646                         fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 647                                 "%*llu - %*llu %6u %s\n",
 648                                 info.curr_level, info.max_depth,
 649                                 info.curr_entry, info.num_entries,
 650                                 logical_width,
 651                                 extent.e_lblk,
 652                                 logical_width,
 653                                 extent.e_lblk + (extent.e_len - 1),
 654                                 physical_width,
 655                                 extent.e_pblk,
 656                                 physical_width,
 657                                 extent.e_pblk + (extent.e_len - 1),
 658                                 extent.e_len,
 659                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 660                                         "Uninit" : "");
 661                         continue;
 662                 }
 663
 664                 if (extent.e_len == 0)
 665                         continue;
 666                 else if (extent.e_len == 1)
 667                         fprintf(f,
 668                                 "%s(%lld%s):%lld",
 669                                 printed ? ", " : "",
 670                                 extent.e_lblk,
 671                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 672                                 "[u]" : "",
 673                                 extent.e_pblk);
 674                 else
 675                         fprintf(f,
 676                                 "%s(%lld-%lld%s):%lld-%lld",
 677                                 printed ? ", " : "",
 678                                 extent.e_lblk,
 679                                 extent.e_lblk + (extent.e_len - 1),
 680                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 681                                         "[u]" : "",
 682                                 extent.e_pblk,
 683                                 extent.e_pblk + (extent.e_len - 1));
 684                 printed = 1;
 685         }
 686         if (printed)
 687                 fprintf(f, "\n");
 688 }
 689
 690 void internal_dump_inode(FILE *out, const char *prefix,
 691                          ext2_ino_t inode_num, struct ext2_inode *inode,
 692                          int do_dump_blocks)
 693 {
 694         const char *i_type;
 695         char frag, fsize;
 696         int os = current_fs->super->s_creator_os;
 697         struct ext2_inode_large *large_inode;
 698         int is_large_inode = 0;
 699
 700         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 701                 is_large_inode = 1;
 702         large_inode = (struct ext2_inode_large *) inode;
 703
 704         if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
 705         else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
 706         else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
 707         else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
 708         else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
 709         else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
 710         else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
 711         else i_type = "bad type";
 712         fprintf(out, "%sInode: %u   Type: %s    ", prefix, inode_num, i_type);
 713         fprintf(out, "%sMode:  %04o   Flags: 0x%x\n",
 714                 prefix, inode->i_mode & 0777, inode->i_flags);
 715         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 716                 fprintf(out, "%sGeneration: %u    Version: 0x%08x:%08x\n",
 717                         prefix, inode->i_generation, large_inode->i_version_hi,
 718                         inode->osd1.linux1.l_i_version);
 719         } else {
 720                 fprintf(out, "%sGeneration: %u    Version: 0x%08x\n", prefix,
 721                         inode->i_generation, inode->osd1.linux1.l_i_version);
 722         }
 723         fprintf(out, "%sUser: %5d   Group: %5d   Size: ",
 724                 prefix, inode_uid(*inode), inode_gid(*inode));
 725         if (LINUX_S_ISREG(inode->i_mode))
 726                 fprintf(out, "%llu\n", EXT2_I_SIZE(inode));
 727         else
 728                 fprintf(out, "%d\n", inode->i_size);
 729         if (os == EXT2_OS_HURD)
 730                 fprintf(out,
 731                         "%sFile ACL: %d    Directory ACL: %d Translator: %d\n",
 732                         prefix,
 733                         inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0,
 734                         inode->osd1.hurd1.h_i_translator);
 735         else
 736                 fprintf(out, "%sFile ACL: %llu    Directory ACL: %d\n",
 737                         prefix,
 738                         inode->i_file_acl | ((long long)
 739                                 (inode->osd2.linux2.l_i_file_acl_high) << 32),
 740                         LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0);
 741         if (os == EXT2_OS_LINUX)
 742                 fprintf(out, "%sLinks: %d   Blockcount: %llu\n",
 743                         prefix, inode->i_links_count,
 744                         (((unsigned long long)
 745                           inode->osd2.linux2.l_i_blocks_hi << 32)) +
 746                         inode->i_blocks);
 747         else
 748                 fprintf(out, "%sLinks: %d   Blockcount: %u\n",
 749                         prefix, inode->i_links_count, inode->i_blocks);
 750         switch (os) {
 751             case EXT2_OS_HURD:
 752                 frag = inode->osd2.hurd2.h_i_frag;
 753                 fsize = inode->osd2.hurd2.h_i_fsize;
 754                 break;
 755             default:
 756                 frag = fsize = 0;
 757         }
 758         fprintf(out, "%sFragment:  Address: %d    Number: %d    Size: %d\n",
 759                 prefix, inode->i_faddr, frag, fsize);
 760         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 761                 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
 762                         inode->i_ctime, large_inode->i_ctime_extra,
 763                         time_to_string(inode->i_ctime));
 764                 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
 765                         inode->i_atime, large_inode->i_atime_extra,
 766                         time_to_string(inode->i_atime));
 767                 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
 768                         inode->i_mtime, large_inode->i_mtime_extra,
 769                         time_to_string(inode->i_mtime));
 770                 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
 771                         large_inode->i_crtime, large_inode->i_crtime_extra,
 772                         time_to_string(large_inode->i_crtime));
 773         } else {
 774                 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
 775                         time_to_string(inode->i_ctime));
 776                 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
 777                         time_to_string(inode->i_atime));
 778                 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
 779                         time_to_string(inode->i_mtime));
 780         }
 781         if (inode->i_dtime)
 782           fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime,
 783                   time_to_string(inode->i_dtime));
 784         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 785                 internal_dump_inode_extra(out, prefix, inode_num,
 786                                           (struct ext2_inode_large *) inode);
 787         if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_inode_data_blocks(current_fs,inode) == 0)
 788                 fprintf(out, "%sFast_link_dest: %.*s\n", prefix,
 789                         (int) inode->i_size, (char *)inode->i_block);
 790         else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
 791                 int major, minor;
 792                 const char *devnote;
 793
 794                 if (inode->i_block[0]) {
 795                         major = (inode->i_block[0] >> 8) & 255;
 796                         minor = inode->i_block[0] & 255;
 797                         devnote = "";
 798                 } else {
 799                         major = (inode->i_block[1] & 0xfff00) >> 8;
 800                         minor = ((inode->i_block[1] & 0xff) |
 801                                  ((inode->i_block[1] >> 12) & 0xfff00));
 802                         devnote = "(New-style) ";
 803                 }
 804                 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
 805                         devnote, major, minor, major, minor);
 806         } else if (do_dump_blocks) {
 807                 if (inode->i_flags & EXT4_EXTENTS_FL)
 808                         dump_extents(out, prefix, inode_num,
 809                                      DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0);
 810                 else
 811                         dump_blocks(out, prefix, inode_num);
 812         }
 813 }
 814
 815 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
 816 {
 817         FILE    *out;
 818
 819         out = open_pager();
 820         internal_dump_inode(out, "", inode_num, inode, 1);
 821         close_pager(out);
 822 }
 823
 824 void do_stat(int argc, char *argv[])
 825 {
 826         ext2_ino_t      inode;
 827         struct ext2_inode * inode_buf;
 828
 829         if (check_fs_open(argv[0]))
 830                 return;
 831
 832         inode_buf = (struct ext2_inode *)
 833                         malloc(EXT2_INODE_SIZE(current_fs->super));
 834         if (!inode_buf) {
 835                 fprintf(stderr, "do_stat: can't allocate buffer\n");
 836                 return;
 837         }
 838
 839         if (common_inode_args_process(argc, argv, &inode, 0)) {
 840                 free(inode_buf);
 841                 return;
 842         }
 843
 844         if (debugfs_read_inode_full(inode, inode_buf, argv[0],
 845                                         EXT2_INODE_SIZE(current_fs->super))) {
 846                 free(inode_buf);
 847                 return;
 848         }
 849
 850         dump_inode(inode, inode_buf);
 851         free(inode_buf);
 852         return;
 853 }
 854
 855 void do_dump_extents(int argc, char **argv)
 856 {
 857         struct ext2_inode inode;
 858         ext2_ino_t      ino;
 859         FILE            *out;
 860         int             c, flags = 0;
 861         int             logical_width;
 862         int             physical_width;
 863
 864         reset_getopt();
 865         while ((c = getopt(argc, argv, "nl")) != EOF) {
 866                 switch (c) {
 867                 case 'n':
 868                         flags |= DUMP_NODE_EXTENTS;
 869                         break;
 870                 case 'l':
 871                         flags |= DUMP_LEAF_EXTENTS;
 872                         break;
 873                 }
 874         }
 875
 876         if (argc != optind + 1) {
 877                 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
 878                 return;
 879         }
 880
 881         if (flags == 0)
 882                 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
 883         flags |= DUMP_EXTENT_TABLE;
 884
 885         if (check_fs_open(argv[0]))
 886                 return;
 887
 888         ino = string_to_inode(argv[optind]);
 889         if (ino == 0)
 890                 return;
 891
 892         if (debugfs_read_inode(ino, &inode, argv[0]))
 893                 return;
 894
 895         if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
 896                 fprintf(stderr, "%s: does not uses extent block maps\n",
 897                         argv[optind]);
 898                 return;
 899         }
 900
 901         logical_width = int_log10((EXT2_I_SIZE(&inode)+current_fs->blocksize-1)/
 902                                   current_fs->blocksize) + 1;
 903         if (logical_width < 5)
 904                 logical_width = 5;
 905         physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1;
 906         if (physical_width < 5)
 907                 physical_width = 5;
 908
 909         out = open_pager();
 910         dump_extents(out, "", ino, flags, logical_width, physical_width);
 911         close_pager(out);
 912         return;
 913 }
 914
 915 static int print_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
 916                              blk64_t *blocknr,
 917                              e2_blkcnt_t blockcnt,
 918                              blk64_t ref_block EXT2FS_ATTR((unused)),
 919                              int ref_offset EXT2FS_ATTR((unused)),
 920                              void *private EXT2FS_ATTR((unused)))
 921 {
 922         printf("%llu ", *blocknr);
 923         return 0;
 924 }
 925
 926 void do_blocks(int argc, char *argv[])
 927 {
 928         ext2_ino_t      inode;
 929
 930         if (check_fs_open(argv[0]))
 931                 return;
 932
 933         if (common_inode_args_process(argc, argv, &inode, 0)) {
 934                 return;
 935         }
 936
 937         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
 938                               print_blocks_proc, NULL);
 939         fputc('\n', stdout);
 940         return;
 941 }
 942
 943 void do_chroot(int argc, char *argv[])
 944 {
 945         ext2_ino_t inode;
 946         int retval;
 947
 948         if (common_inode_args_process(argc, argv, &inode, 0))
 949                 return;
 950
 951         retval = ext2fs_check_directory(current_fs, inode);
 952         if (retval)  {
 953                 com_err(argv[1], retval, 0);
 954                 return;
 955         }
 956         root = inode;
 957 }
 958
 959 void do_clri(int argc, char *argv[])
 960 {
 961         ext2_ino_t inode;
 962         struct ext2_inode inode_buf;
 963
 964         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
 965                 return;
 966
 967         if (debugfs_read_inode(inode, &inode_buf, argv[0]))
 968                 return;
 969         memset(&inode_buf, 0, sizeof(inode_buf));
 970         if (debugfs_write_inode(inode, &inode_buf, argv[0]))
 971                 return;
 972 }
 973
 974 void do_freei(int argc, char *argv[])
 975 {
 976         ext2_ino_t inode;
 977
 978         if (common_inode_args_process(argc, argv, &inode,
 979                                       CHECK_FS_RW | CHECK_FS_BITMAPS))
 980                 return;
 981
 982         if (!ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
 983                 com_err(argv[0], 0, "Warning: inode already clear");
 984         ext2fs_unmark_inode_bitmap2(current_fs->inode_map,inode);
 985         ext2fs_mark_ib_dirty(current_fs);
 986 }
 987
 988 void do_seti(int argc, char *argv[])
 989 {
 990         ext2_ino_t inode;
 991
 992         if (common_inode_args_process(argc, argv, &inode,
 993                                       CHECK_FS_RW | CHECK_FS_BITMAPS))
 994                 return;
 995
 996         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
 997                 com_err(argv[0], 0, "Warning: inode already set");
 998         ext2fs_mark_inode_bitmap2(current_fs->inode_map,inode);
 999         ext2fs_mark_ib_dirty(current_fs);
1000 }
1001
1002 void do_testi(int argc, char *argv[])
1003 {
1004         ext2_ino_t inode;
1005
1006         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
1007                 return;
1008
1009         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1010                 printf("Inode %u is marked in use\n", inode);
1011         else
1012                 printf("Inode %u is not in use\n", inode);
1013 }
1014
1015 void do_freeb(int argc, char *argv[])
1016 {
1017         blk64_t block;
1018         blk64_t count = 1;
1019
1020         if (common_block_args_process(argc, argv, &block, &count))
1021                 return;
1022         if (check_fs_read_write(argv[0]))
1023                 return;
1024         while (count-- > 0) {
1025                 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
1026                         com_err(argv[0], 0, "Warning: block %llu already clear",
1027                                 block);
1028                 ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
1029                 block++;
1030         }
1031         ext2fs_mark_bb_dirty(current_fs);
1032 }
1033
1034 void do_setb(int argc, char *argv[])
1035 {
1036         blk64_t block;
1037         blk64_t count = 1;
1038
1039         if (common_block_args_process(argc, argv, &block, &count))
1040                 return;
1041         if (check_fs_read_write(argv[0]))
1042                 return;
1043         while (count-- > 0) {
1044                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1045                         com_err(argv[0], 0, "Warning: block %llu already set",
1046                                 block);
1047                 ext2fs_mark_block_bitmap2(current_fs->block_map,block);
1048                 block++;
1049         }
1050         ext2fs_mark_bb_dirty(current_fs);
1051 }
1052
1053 void do_testb(int argc, char *argv[])
1054 {
1055         blk64_t block;
1056         blk64_t count = 1;
1057
1058         if (common_block_args_process(argc, argv, &block, &count))
1059                 return;
1060         while (count-- > 0) {
1061                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1062                         printf("Block %llu marked in use\n", block);
1063                 else
1064                         printf("Block %llu not in use\n", block);
1065                 block++;
1066         }
1067 }
1068
1069 static void modify_u8(char *com, const char *prompt,
1070                       const char *format, __u8 *val)
1071 {
1072         char buf[200];
1073         unsigned long v;
1074         char *tmp;
1075
1076         sprintf(buf, format, *val);
1077         printf("%30s    [%s] ", prompt, buf);
1078         if (!fgets(buf, sizeof(buf), stdin))
1079                 return;
1080         if (buf[strlen (buf) - 1] == '\n')
1081                 buf[strlen (buf) - 1] = '\0';
1082         if (!buf[0])
1083                 return;
1084         v = strtoul(buf, &tmp, 0);
1085         if (*tmp)
1086                 com_err(com, 0, "Bad value - %s", buf);
1087         else
1088                 *val = v;
1089 }
1090
1091 static void modify_u16(char *com, const char *prompt,
1092                        const char *format, __u16 *val)
1093 {
1094         char buf[200];
1095         unsigned long v;
1096         char *tmp;
1097
1098         sprintf(buf, format, *val);
1099         printf("%30s    [%s] ", prompt, buf);
1100         if (!fgets(buf, sizeof(buf), stdin))
1101                 return;
1102         if (buf[strlen (buf) - 1] == '\n')
1103                 buf[strlen (buf) - 1] = '\0';
1104         if (!buf[0])
1105                 return;
1106         v = strtoul(buf, &tmp, 0);
1107         if (*tmp)
1108                 com_err(com, 0, "Bad value - %s", buf);
1109         else
1110                 *val = v;
1111 }
1112
1113 static void modify_u32(char *com, const char *prompt,
1114                        const char *format, __u32 *val)
1115 {
1116         char buf[200];
1117         unsigned long v;
1118         char *tmp;
1119
1120         sprintf(buf, format, *val);
1121         printf("%30s    [%s] ", prompt, buf);
1122         if (!fgets(buf, sizeof(buf), stdin))
1123                 return;
1124         if (buf[strlen (buf) - 1] == '\n')
1125                 buf[strlen (buf) - 1] = '\0';
1126         if (!buf[0])
1127                 return;
1128         v = strtoul(buf, &tmp, 0);
1129         if (*tmp)
1130                 com_err(com, 0, "Bad value - %s", buf);
1131         else
1132                 *val = v;
1133 }
1134
1135
1136 void do_modify_inode(int argc, char *argv[])
1137 {
1138         struct ext2_inode inode;
1139         ext2_ino_t      inode_num;
1140         int             i;
1141         unsigned char   *frag, *fsize;
1142         char            buf[80];
1143         int             os;
1144         const char      *hex_format = "0x%x";
1145         const char      *octal_format = "0%o";
1146         const char      *decimal_format = "%d";
1147         const char      *unsignedlong_format = "%lu";
1148
1149         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1150                 return;
1151
1152         os = current_fs->super->s_creator_os;
1153
1154         if (debugfs_read_inode(inode_num, &inode, argv[1]))
1155                 return;
1156
1157         modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1158         modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1159         modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1160         modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1161         modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1162         modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1163         modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1164         modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1165         modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1166         if (os == EXT2_OS_LINUX)
1167                 modify_u16(argv[0], "Block count high", unsignedlong_format,
1168                            &inode.osd2.linux2.l_i_blocks_hi);
1169         modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1170         modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1171         modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1172 #if 0
1173         modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1174 #endif
1175         modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1176         if (LINUX_S_ISDIR(inode.i_mode))
1177                 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
1178         else
1179                 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
1180
1181         if (os == EXT2_OS_HURD)
1182                 modify_u32(argv[0], "Translator Block",
1183                             decimal_format, &inode.osd1.hurd1.h_i_translator);
1184
1185         modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1186         switch (os) {
1187             case EXT2_OS_HURD:
1188                 frag = &inode.osd2.hurd2.h_i_frag;
1189                 fsize = &inode.osd2.hurd2.h_i_fsize;
1190                 break;
1191             default:
1192                 frag = fsize = 0;
1193         }
1194         if (frag)
1195                 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1196         if (fsize)
1197                 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1198
1199         for (i=0;  i < EXT2_NDIR_BLOCKS; i++) {
1200                 sprintf(buf, "Direct Block #%d", i);
1201                 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1202         }
1203         modify_u32(argv[0], "Indirect Block", decimal_format,
1204                     &inode.i_block[EXT2_IND_BLOCK]);
1205         modify_u32(argv[0], "Double Indirect Block", decimal_format,
1206                     &inode.i_block[EXT2_DIND_BLOCK]);
1207         modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1208                     &inode.i_block[EXT2_TIND_BLOCK]);
1209         if (debugfs_write_inode(inode_num, &inode, argv[1]))
1210                 return;
1211 }
1212
1213 void do_change_working_dir(int argc, char *argv[])
1214 {
1215         ext2_ino_t      inode;
1216         int             retval;
1217
1218         if (common_inode_args_process(argc, argv, &inode, 0))
1219                 return;
1220
1221         retval = ext2fs_check_directory(current_fs, inode);
1222         if (retval) {
1223                 com_err(argv[1], retval, 0);
1224                 return;
1225         }
1226         cwd = inode;
1227         return;
1228 }
1229
1230 void do_print_working_directory(int argc, char *argv[])
1231 {
1232         int     retval;
1233         char    *pathname = NULL;
1234
1235         if (common_args_process(argc, argv, 1, 1,
1236                                 "print_working_directory", "", 0))
1237                 return;
1238
1239         retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1240         if (retval) {
1241                 com_err(argv[0], retval,
1242                         "while trying to get pathname of cwd");
1243         }
1244         printf("[pwd]   INODE: %6u  PATH: %s\n",
1245                cwd, pathname ? pathname : "NULL");
1246         if (pathname) {
1247                 free(pathname);
1248                 pathname = NULL;
1249         }
1250         retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1251         if (retval) {
1252                 com_err(argv[0], retval,
1253                         "while trying to get pathname of root");
1254         }
1255         printf("[root]  INODE: %6u  PATH: %s\n",
1256                root, pathname ? pathname : "NULL");
1257         if (pathname) {
1258                 free(pathname);
1259                 pathname = NULL;
1260         }
1261         return;
1262 }
1263
1264 /*
1265  * Given a mode, return the ext2 file type
1266  */
1267 static int ext2_file_type(unsigned int mode)
1268 {
1269         if (LINUX_S_ISREG(mode))
1270                 return EXT2_FT_REG_FILE;
1271
1272         if (LINUX_S_ISDIR(mode))
1273                 return EXT2_FT_DIR;
1274
1275         if (LINUX_S_ISCHR(mode))
1276                 return EXT2_FT_CHRDEV;
1277
1278         if (LINUX_S_ISBLK(mode))
1279                 return EXT2_FT_BLKDEV;
1280
1281         if (LINUX_S_ISLNK(mode))
1282                 return EXT2_FT_SYMLINK;
1283
1284         if (LINUX_S_ISFIFO(mode))
1285                 return EXT2_FT_FIFO;
1286
1287         if (LINUX_S_ISSOCK(mode))
1288                 return EXT2_FT_SOCK;
1289
1290         return 0;
1291 }
1292
1293 static void make_link(char *sourcename, char *destname)
1294 {
1295         ext2_ino_t      ino;
1296         struct ext2_inode inode;
1297         int             retval;
1298         ext2_ino_t      dir;
1299         char            *dest, *cp, *base_name;
1300
1301         /*
1302          * Get the source inode
1303          */
1304         ino = string_to_inode(sourcename);
1305         if (!ino)
1306                 return;
1307         base_name = strrchr(sourcename, '/');
1308         if (base_name)
1309                 base_name++;
1310         else
1311                 base_name = sourcename;
1312         /*
1313          * Figure out the destination.  First see if it exists and is
1314          * a directory.
1315          */
1316         if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1317                 dest = base_name;
1318         else {
1319                 /*
1320                  * OK, it doesn't exist.  See if it is
1321                  * '<dir>/basename' or 'basename'
1322                  */
1323                 cp = strrchr(destname, '/');
1324                 if (cp) {
1325                         *cp = 0;
1326                         dir = string_to_inode(destname);
1327                         if (!dir)
1328                                 return;
1329                         dest = cp+1;
1330                 } else {
1331                         dir = cwd;
1332                         dest = destname;
1333                 }
1334         }
1335
1336         if (debugfs_read_inode(ino, &inode, sourcename))
1337                 return;
1338
1339         retval = ext2fs_link(current_fs, dir, dest, ino,
1340                              ext2_file_type(inode.i_mode));
1341         if (retval)
1342                 com_err("make_link", retval, 0);
1343         return;
1344 }
1345
1346
1347 void do_link(int argc, char *argv[])
1348 {
1349         if (common_args_process(argc, argv, 3, 3, "link",
1350                                 "<source file> <dest_name>", CHECK_FS_RW))
1351                 return;
1352
1353         make_link(argv[1], argv[2]);
1354 }
1355
1356 static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1357                             e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1358                             blk64_t ref_block EXT2FS_ATTR((unused)),
1359                             int ref_offset EXT2FS_ATTR((unused)),
1360                             void *private EXT2FS_ATTR((unused)))
1361 {
1362         blk64_t block;
1363
1364         block = *blocknr;
1365         ext2fs_block_alloc_stats2(fs, block, +1);
1366         return 0;
1367 }
1368
1369 void do_undel(int argc, char *argv[])
1370 {
1371         ext2_ino_t      ino;
1372         struct ext2_inode inode;
1373
1374         if (common_args_process(argc, argv, 2, 3, "undelete",
1375                                 "<inode_num> [dest_name]",
1376                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1377                 return;
1378
1379         ino = string_to_inode(argv[1]);
1380         if (!ino)
1381                 return;
1382
1383         if (debugfs_read_inode(ino, &inode, argv[1]))
1384                 return;
1385
1386         if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
1387                 com_err(argv[1], 0, "Inode is not marked as deleted");
1388                 return;
1389         }
1390
1391         /*
1392          * XXX this function doesn't handle changing the links count on the
1393          * parent directory when undeleting a directory.
1394          */
1395         inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1396         inode.i_dtime = 0;
1397
1398         if (debugfs_write_inode(ino, &inode, argv[0]))
1399                 return;
1400
1401         ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1402                               mark_blocks_proc, NULL);
1403
1404         ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1405
1406         if (argc > 2)
1407                 make_link(argv[1], argv[2]);
1408 }
1409
1410 static void unlink_file_by_name(char *filename)
1411 {
1412         int             retval;
1413         ext2_ino_t      dir;
1414         char            *base_name;
1415
1416         base_name = strrchr(filename, '/');
1417         if (base_name) {
1418                 *base_name++ = '\0';
1419                 dir = string_to_inode(filename);
1420                 if (!dir)
1421                         return;
1422         } else {
1423                 dir = cwd;
1424                 base_name = filename;
1425         }
1426         retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1427         if (retval)
1428                 com_err("unlink_file_by_name", retval, 0);
1429         return;
1430 }
1431
1432 void do_unlink(int argc, char *argv[])
1433 {
1434         if (common_args_process(argc, argv, 2, 2, "link",
1435                                 "<pathname>", CHECK_FS_RW))
1436                 return;
1437
1438         unlink_file_by_name(argv[1]);
1439 }
1440
1441 void do_find_free_block(int argc, char *argv[])
1442 {
1443         blk64_t free_blk, goal, first_free = 0;
1444         int             count;
1445         errcode_t       retval;
1446         char            *tmp;
1447
1448         if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1449                 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1450                 return;
1451         }
1452         if (check_fs_open(argv[0]))
1453                 return;
1454
1455         if (argc > 1) {
1456                 count = strtol(argv[1],&tmp,0);
1457                 if (*tmp) {
1458                         com_err(argv[0], 0, "Bad count - %s", argv[1]);
1459                         return;
1460                 }
1461         } else
1462                 count = 1;
1463
1464         if (argc > 2) {
1465                 goal = strtol(argv[2], &tmp, 0);
1466                 if (*tmp) {
1467                         com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1468                         return;
1469                 }
1470         }
1471         else
1472                 goal = current_fs->super->s_first_data_block;
1473
1474         printf("Free blocks found: ");
1475         free_blk = goal - 1;
1476         while (count-- > 0) {
1477                 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
1478                                            &free_blk);
1479                 if (first_free) {
1480                         if (first_free == free_blk)
1481                                 break;
1482                 } else
1483                         first_free = free_blk;
1484                 if (retval) {
1485                         com_err("ext2fs_new_block", retval, 0);
1486                         return;
1487                 } else
1488                         printf("%llu ", free_blk);
1489         }
1490         printf("\n");
1491 }
1492
1493 void do_find_free_inode(int argc, char *argv[])
1494 {
1495         ext2_ino_t      free_inode, dir;
1496         int             mode;
1497         int             retval;
1498         char            *tmp;
1499
1500         if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1501                 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
1502                 return;
1503         }
1504         if (check_fs_open(argv[0]))
1505                 return;
1506
1507         if (argc > 1) {
1508                 dir = strtol(argv[1], &tmp, 0);
1509                 if (*tmp) {
1510                         com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1511                         return;
1512                 }
1513         }
1514         else
1515                 dir = root;
1516         if (argc > 2) {
1517                 mode = strtol(argv[2], &tmp, 0);
1518                 if (*tmp) {
1519                         com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1520                         return;
1521                 }
1522         } else
1523                 mode = 010755;
1524
1525         retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1526         if (retval)
1527                 com_err("ext2fs_new_inode", retval, 0);
1528         else
1529                 printf("Free inode found: %u\n", free_inode);
1530 }
1531
1532 static errcode_t copy_file(int fd, ext2_ino_t newfile)
1533 {
1534         ext2_file_t     e2_file;
1535         errcode_t       retval;
1536         int             got;
1537         unsigned int    written;
1538         char            buf[8192];
1539         char            *ptr;
1540
1541         retval = ext2fs_file_open(current_fs, newfile,
1542                                   EXT2_FILE_WRITE, &e2_file);
1543         if (retval)
1544                 return retval;
1545
1546         while (1) {
1547                 got = read(fd, buf, sizeof(buf));
1548                 if (got == 0)
1549                         break;
1550                 if (got < 0) {
1551                         retval = errno;
1552                         goto fail;
1553                 }
1554                 ptr = buf;
1555                 while (got > 0) {
1556                         retval = ext2fs_file_write(e2_file, ptr,
1557                                                    got, &written);
1558                         if (retval)
1559                                 goto fail;
1560
1561                         got -= written;
1562                         ptr += written;
1563                 }
1564         }
1565         retval = ext2fs_file_close(e2_file);
1566         return retval;
1567
1568 fail:
1569         (void) ext2fs_file_close(e2_file);
1570         return retval;
1571 }
1572
1573
1574 void do_write(int argc, char *argv[])
1575 {
1576         int             fd;
1577         struct stat     statbuf;
1578         ext2_ino_t      newfile;
1579         errcode_t       retval;
1580         struct ext2_inode inode;
1581
1582         if (common_args_process(argc, argv, 3, 3, "write",
1583                                 "<native file> <new file>", CHECK_FS_RW))
1584                 return;
1585
1586         fd = open(argv[1], O_RDONLY);
1587         if (fd < 0) {
1588                 com_err(argv[1], errno, 0);
1589                 return;
1590         }
1591         if (fstat(fd, &statbuf) < 0) {
1592                 com_err(argv[1], errno, 0);
1593                 close(fd);
1594                 return;
1595         }
1596
1597         retval = ext2fs_namei(current_fs, root, cwd, argv[2], &newfile);
1598         if (retval == 0) {
1599                 com_err(argv[0], 0, "The file '%s' already exists\n", argv[2]);
1600                 close(fd);
1601                 return;
1602         }
1603
1604         retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1605         if (retval) {
1606                 com_err(argv[0], retval, 0);
1607                 close(fd);
1608                 return;
1609         }
1610         printf("Allocated inode: %u\n", newfile);
1611         retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1612                              EXT2_FT_REG_FILE);
1613         if (retval == EXT2_ET_DIR_NO_SPACE) {
1614                 retval = ext2fs_expand_dir(current_fs, cwd);
1615                 if (retval) {
1616                         com_err(argv[0], retval, "while expanding directory");
1617                         close(fd);
1618                         return;
1619                 }
1620                 retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1621                                      EXT2_FT_REG_FILE);
1622         }
1623         if (retval) {
1624                 com_err(argv[2], retval, 0);
1625                 close(fd);
1626                 return;
1627         }
1628         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile))
1629                 com_err(argv[0], 0, "Warning: inode already set");
1630         ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0);
1631         memset(&inode, 0, sizeof(inode));
1632         inode.i_mode = (statbuf.st_mode & ~LINUX_S_IFMT) | LINUX_S_IFREG;
1633         inode.i_atime = inode.i_ctime = inode.i_mtime =
1634                 current_fs->now ? current_fs->now : time(0);
1635         inode.i_links_count = 1;
1636         inode.i_size = statbuf.st_size;
1637         if (current_fs->super->s_feature_incompat &
1638             EXT3_FEATURE_INCOMPAT_EXTENTS)
1639                 inode.i_flags |= EXT4_EXTENTS_FL;
1640         if (debugfs_write_new_inode(newfile, &inode, argv[0])) {
1641                 close(fd);
1642                 return;
1643         }
1644         if (LINUX_S_ISREG(inode.i_mode)) {
1645                 retval = copy_file(fd, newfile);
1646                 if (retval)
1647                         com_err("copy_file", retval, 0);
1648         }
1649         close(fd);
1650 }
1651
1652 void do_mknod(int argc, char *argv[])
1653 {
1654         unsigned long   mode, major, minor;
1655         ext2_ino_t      newfile;
1656         errcode_t       retval;
1657         struct ext2_inode inode;
1658         int             filetype, nr;
1659
1660         if (check_fs_open(argv[0]))
1661                 return;
1662         if (argc < 3 || argv[2][1]) {
1663         usage:
1664                 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1665                 return;
1666         }
1667         mode = minor = major = 0;
1668         switch (argv[2][0]) {
1669                 case 'p':
1670                         mode = LINUX_S_IFIFO;
1671                         filetype = EXT2_FT_FIFO;
1672                         nr = 3;
1673                         break;
1674                 case 'c':
1675                         mode = LINUX_S_IFCHR;
1676                         filetype = EXT2_FT_CHRDEV;
1677                         nr = 5;
1678                         break;
1679                 case 'b':
1680                         mode = LINUX_S_IFBLK;
1681                         filetype = EXT2_FT_BLKDEV;
1682                         nr = 5;
1683                         break;
1684                 default:
1685                         filetype = 0;
1686                         nr = 0;
1687         }
1688         if (nr == 5) {
1689                 major = strtoul(argv[3], argv+3, 0);
1690                 minor = strtoul(argv[4], argv+4, 0);
1691                 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1692                         nr = 0;
1693         }
1694         if (argc != nr)
1695                 goto usage;
1696         if (check_fs_read_write(argv[0]))
1697                 return;
1698         retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1699         if (retval) {
1700                 com_err(argv[0], retval, 0);
1701                 return;
1702         }
1703         printf("Allocated inode: %u\n", newfile);
1704         retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype);
1705         if (retval == EXT2_ET_DIR_NO_SPACE) {
1706                 retval = ext2fs_expand_dir(current_fs, cwd);
1707                 if (retval) {
1708                         com_err(argv[0], retval, "while expanding directory");
1709                         return;
1710                 }
1711                 retval = ext2fs_link(current_fs, cwd, argv[1], newfile,
1712                                      filetype);
1713         }
1714         if (retval) {
1715                 com_err(argv[1], retval, 0);
1716                 return;
1717         }
1718         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile))
1719                 com_err(argv[0], 0, "Warning: inode already set");
1720         ext2fs_mark_inode_bitmap2(current_fs->inode_map, newfile);
1721         ext2fs_mark_ib_dirty(current_fs);
1722         memset(&inode, 0, sizeof(inode));
1723         inode.i_mode = mode;
1724         inode.i_atime = inode.i_ctime = inode.i_mtime =
1725                 current_fs->now ? current_fs->now : time(0);
1726         if ((major < 256) && (minor < 256)) {
1727                 inode.i_block[0] = major*256+minor;
1728                 inode.i_block[1] = 0;
1729         } else {
1730                 inode.i_block[0] = 0;
1731                 inode.i_block[1] = (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12);
1732         }
1733         inode.i_links_count = 1;
1734         if (debugfs_write_new_inode(newfile, &inode, argv[0]))
1735                 return;
1736 }
1737
1738 void do_mkdir(int argc, char *argv[])
1739 {
1740         char    *cp;
1741         ext2_ino_t      parent;
1742         char    *name;
1743         errcode_t retval;
1744
1745         if (common_args_process(argc, argv, 2, 2, "mkdir",
1746                                 "<filename>", CHECK_FS_RW))
1747                 return;
1748
1749         cp = strrchr(argv[1], '/');
1750         if (cp) {
1751                 *cp = 0;
1752                 parent = string_to_inode(argv[1]);
1753                 if (!parent) {
1754                         com_err(argv[1], ENOENT, 0);
1755                         return;
1756                 }
1757                 name = cp+1;
1758         } else {
1759                 parent = cwd;
1760                 name = argv[1];
1761         }
1762
1763 try_again:
1764         retval = ext2fs_mkdir(current_fs, parent, 0, name);
1765         if (retval == EXT2_ET_DIR_NO_SPACE) {
1766                 retval = ext2fs_expand_dir(current_fs, parent);
1767                 if (retval) {
1768                         com_err(argv[0], retval, "while expanding directory");
1769                         return;
1770                 }
1771                 goto try_again;
1772         }
1773         if (retval) {
1774                 com_err("ext2fs_mkdir", retval, 0);
1775                 return;
1776         }
1777
1778 }
1779
1780 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1781                                e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1782                                blk64_t ref_block EXT2FS_ATTR((unused)),
1783                                int ref_offset EXT2FS_ATTR((unused)),
1784                                void *private EXT2FS_ATTR((unused)))
1785 {
1786         blk64_t block;
1787
1788         block = *blocknr;
1789         ext2fs_block_alloc_stats2(fs, block, -1);
1790         return 0;
1791 }
1792
1793 static void kill_file_by_inode(ext2_ino_t inode)
1794 {
1795         struct ext2_inode inode_buf;
1796
1797         if (debugfs_read_inode(inode, &inode_buf, 0))
1798                 return;
1799         inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1800         if (debugfs_write_inode(inode, &inode_buf, 0))
1801                 return;
1802         if (!ext2fs_inode_has_valid_blocks(&inode_buf))
1803                 return;
1804
1805         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
1806                               release_blocks_proc, NULL);
1807         printf("\n");
1808         ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1809                                   LINUX_S_ISDIR(inode_buf.i_mode));
1810 }
1811
1812
1813 void do_kill_file(int argc, char *argv[])
1814 {
1815         ext2_ino_t inode_num;
1816
1817         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1818                 return;
1819
1820         kill_file_by_inode(inode_num);
1821 }
1822
1823 void do_rm(int argc, char *argv[])
1824 {
1825         int retval;
1826         ext2_ino_t inode_num;
1827         struct ext2_inode inode;
1828
1829         if (common_args_process(argc, argv, 2, 2, "rm",
1830                                 "<filename>", CHECK_FS_RW))
1831                 return;
1832
1833         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1834         if (retval) {
1835                 com_err(argv[0], retval, "while trying to resolve filename");
1836                 return;
1837         }
1838
1839         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1840                 return;
1841
1842         if (LINUX_S_ISDIR(inode.i_mode)) {
1843                 com_err(argv[0], 0, "file is a directory");
1844                 return;
1845         }
1846
1847         --inode.i_links_count;
1848         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1849                 return;
1850
1851         unlink_file_by_name(argv[1]);
1852         if (inode.i_links_count == 0)
1853                 kill_file_by_inode(inode_num);
1854 }
1855
1856 struct rd_struct {
1857         ext2_ino_t      parent;
1858         int             empty;
1859 };
1860
1861 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1862                       int       entry EXT2FS_ATTR((unused)),
1863                       struct ext2_dir_entry *dirent,
1864                       int       offset EXT2FS_ATTR((unused)),
1865                       int       blocksize EXT2FS_ATTR((unused)),
1866                       char      *buf EXT2FS_ATTR((unused)),
1867                       void      *private)
1868 {
1869         struct rd_struct *rds = (struct rd_struct *) private;
1870
1871         if (dirent->inode == 0)
1872                 return 0;
1873         if (((dirent->name_len&0xFF) == 1) && (dirent->name[0] == '.'))
1874                 return 0;
1875         if (((dirent->name_len&0xFF) == 2) && (dirent->name[0] == '.') &&
1876             (dirent->name[1] == '.')) {
1877                 rds->parent = dirent->inode;
1878                 return 0;
1879         }
1880         rds->empty = 0;
1881         return 0;
1882 }
1883
1884 void do_rmdir(int argc, char *argv[])
1885 {
1886         int retval;
1887         ext2_ino_t inode_num;
1888         struct ext2_inode inode;
1889         struct rd_struct rds;
1890
1891         if (common_args_process(argc, argv, 2, 2, "rmdir",
1892                                 "<filename>", CHECK_FS_RW))
1893                 return;
1894
1895         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1896         if (retval) {
1897                 com_err(argv[0], retval, "while trying to resolve filename");
1898                 return;
1899         }
1900
1901         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1902                 return;
1903
1904         if (!LINUX_S_ISDIR(inode.i_mode)) {
1905                 com_err(argv[0], 0, "file is not a directory");
1906                 return;
1907         }
1908
1909         rds.parent = 0;
1910         rds.empty = 1;
1911
1912         retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1913                                     0, rmdir_proc, &rds);
1914         if (retval) {
1915                 com_err(argv[0], retval, "while iterating over directory");
1916                 return;
1917         }
1918         if (rds.empty == 0) {
1919                 com_err(argv[0], 0, "directory not empty");
1920                 return;
1921         }
1922
1923         inode.i_links_count = 0;
1924         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1925                 return;
1926
1927         unlink_file_by_name(argv[1]);
1928         kill_file_by_inode(inode_num);
1929
1930         if (rds.parent) {
1931                 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
1932                         return;
1933                 if (inode.i_links_count > 1)
1934                         inode.i_links_count--;
1935                 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
1936                         return;
1937         }
1938 }
1939
1940 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
1941                             char *argv[] EXT2FS_ATTR((unused)))
1942 {
1943         FILE *out = stdout;
1944
1945         if (current_fs)
1946                 fprintf(out, "Open mode: read-%s\n",
1947                         current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
1948         fprintf(out, "Filesystem in use: %s\n",
1949                 current_fs ? current_fs->device_name : "--none--");
1950 }
1951
1952 void do_expand_dir(int argc, char *argv[])
1953 {
1954         ext2_ino_t inode;
1955         int retval;
1956
1957         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1958                 return;
1959
1960         retval = ext2fs_expand_dir(current_fs, inode);
1961         if (retval)
1962                 com_err("ext2fs_expand_dir", retval, 0);
1963         return;
1964 }
1965
1966 void do_features(int argc, char *argv[])
1967 {
1968         int     i;
1969
1970         if (check_fs_open(argv[0]))
1971                 return;
1972
1973         if ((argc != 1) && check_fs_read_write(argv[0]))
1974                 return;
1975         for (i=1; i < argc; i++) {
1976                 if (e2p_edit_feature(argv[i],
1977                                      &current_fs->super->s_feature_compat, 0))
1978                         com_err(argv[0], 0, "Unknown feature: %s\n",
1979                                 argv[i]);
1980                 else
1981                         ext2fs_mark_super_dirty(current_fs);
1982         }
1983         print_features(current_fs->super, stdout);
1984 }
1985
1986 void do_bmap(int argc, char *argv[])
1987 {
1988         ext2_ino_t      ino;
1989         blk64_t         blk, pblk;
1990         int             err;
1991         errcode_t       errcode;
1992
1993         if (common_args_process(argc, argv, 3, 3, argv[0],
1994                                 "<file> logical_blk", 0))
1995                 return;
1996
1997         ino = string_to_inode(argv[1]);
1998         if (!ino)
1999                 return;
2000         blk = parse_ulong(argv[2], argv[0], "logical_block", &err);
2001
2002         errcode = ext2fs_bmap2(current_fs, ino, 0, 0, 0, blk, 0, &pblk);
2003         if (errcode) {
2004                 com_err("argv[0]", errcode,
2005                         "while mapping logical block %llu\n", blk);
2006                 return;
2007         }
2008         printf("%llu\n", pblk);
2009 }
2010
2011 void do_imap(int argc, char *argv[])
2012 {
2013         ext2_ino_t      ino;
2014         unsigned long   group, block, block_nr, offset;
2015
2016         if (common_args_process(argc, argv, 2, 2, argv[0],
2017                                 "<file>", 0))
2018                 return;
2019         ino = string_to_inode(argv[1]);
2020         if (!ino)
2021                 return;
2022
2023         group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
2024         offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
2025                 EXT2_INODE_SIZE(current_fs->super);
2026         block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
2027         if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
2028                 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
2029                         group);
2030                 return;
2031         }
2032         block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
2033                 block;
2034         offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
2035
2036         printf("Inode %d is part of block group %lu\n"
2037                "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
2038                block_nr, offset);
2039
2040 }
2041
2042 void do_set_current_time(int argc, char *argv[])
2043 {
2044         time_t now;
2045
2046         if (common_args_process(argc, argv, 2, 2, argv[0],
2047                                 "<time>", 0))
2048                 return;
2049
2050         now = string_to_time(argv[1]);
2051         if (now == ((time_t) -1)) {
2052                 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
2053                         argv[1]);
2054                 return;
2055
2056         } else {
2057                 printf("Setting current time to %s\n", time_to_string(now));
2058                 current_fs->now = now;
2059         }
2060 }
2061
2062 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
2063 {
2064         int compat, bit, ret;
2065         unsigned int feature_mask;
2066
2067         if (name) {
2068                 if (feature_type == E2P_FS_FEATURE)
2069                         ret = e2p_string2feature(name, &compat, &feature_mask);
2070                 else
2071                         ret = e2p_jrnl_string2feature(name, &compat,
2072                                                       &feature_mask);
2073                 if (ret)
2074                         return ret;
2075
2076                 if (!(supp[compat] & feature_mask))
2077                         return 1;
2078         } else {
2079                 for (compat = 0; compat < 3; compat++) {
2080                         for (bit = 0, feature_mask = 1; bit < 32;
2081                              bit++, feature_mask <<= 1) {
2082                                 if (supp[compat] & feature_mask) {
2083                                         if (feature_type == E2P_FS_FEATURE)
2084                                                 fprintf(stdout, " %s",
2085                                                 e2p_feature2string(compat,
2086                                                 feature_mask));
2087                                         else
2088                                                 fprintf(stdout, " %s",
2089                                                 e2p_jrnl_feature2string(compat,
2090                                                 feature_mask));
2091                                 }
2092                         }
2093                 }
2094                 fprintf(stdout, "\n");
2095         }
2096
2097         return 0;
2098 }
2099
2100 void do_supported_features(int argc, char *argv[])
2101 {
2102         int     ret;
2103         __u32   supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2104                             EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2105                             EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2106         __u32   jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES,
2107                                  JFS_KNOWN_INCOMPAT_FEATURES,
2108                                  JFS_KNOWN_ROCOMPAT_FEATURES };
2109
2110         if (argc > 1) {
2111                 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2112                 if (ret) {
2113                         ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2114                                                 argv[1]);
2115                 }
2116                 if (ret)
2117                         com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2118                 else
2119                         fprintf(stdout, "Supported feature: %s\n", argv[1]);
2120         } else {
2121                 fprintf(stdout, "Supported features:");
2122                 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2123                 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2124         }
2125 }
2126
2127 void do_punch(int argc, char *argv[])
2128 {
2129         ext2_ino_t      ino;
2130         blk64_t         start, end;
2131         int             err;
2132         errcode_t       errcode;
2133
2134         if (common_args_process(argc, argv, 3, 4, argv[0],
2135                                 "<file> start_blk [end_blk]",
2136                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
2137                 return;
2138
2139         ino = string_to_inode(argv[1]);
2140         if (!ino)
2141                 return;
2142         start = parse_ulong(argv[2], argv[0], "logical_block", &err);
2143         if (argc == 4)
2144                 end = parse_ulong(argv[3], argv[0], "logical_block", &err);
2145         else
2146                 end = ~0;
2147
2148         errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
2149
2150         if (errcode) {
2151                 com_err(argv[0], errcode,
2152                         "while truncating inode %u from %llu to %llu\n", ino,
2153                         (unsigned long long) start, (unsigned long long) end);
2154                 return;
2155         }
2156 }
2157
2158 static int source_file(const char *cmd_file, int sci_idx)
2159 {
2160         FILE            *f;
2161         char            buf[256];
2162         char            *cp;
2163         int             exit_status = 0;
2164         int             retval;
2165
2166         if (strcmp(cmd_file, "-") == 0)
2167                 f = stdin;
2168         else {
2169                 f = fopen(cmd_file, "r");
2170                 if (!f) {
2171                         perror(cmd_file);
2172                         exit(1);
2173                 }
2174         }
2175         fflush(stdout);
2176         fflush(stderr);
2177         setbuf(stdout, NULL);
2178         setbuf(stderr, NULL);
2179         while (!feof(f)) {
2180                 if (fgets(buf, sizeof(buf), f) == NULL)
2181                         break;
2182                 cp = strchr(buf, '\n');
2183                 if (cp)
2184                         *cp = 0;
2185                 cp = strchr(buf, '\r');
2186                 if (cp)
2187                         *cp = 0;
2188                 printf("debugfs: %s\n", buf);
2189                 retval = ss_execute_line(sci_idx, buf);
2190                 if (retval) {
2191                         ss_perror(sci_idx, retval, buf);
2192                         exit_status++;
2193                 }
2194         }
2195         if (f != stdin)
2196                 fclose(f);
2197         return exit_status;
2198 }
2199
2200 int main(int argc, char **argv)
2201 {
2202         int             retval;
2203         int             sci_idx;
2204         const char      *usage = "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] [-R request] [-V] [[-w] [-c] device]";
2205         int             c;
2206         int             open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
2207         char            *request = 0;
2208         int             exit_status = 0;
2209         char            *cmd_file = 0;
2210         blk64_t         superblock = 0;
2211         blk64_t         blocksize = 0;
2212         int             catastrophic = 0;
2213         char            *data_filename = 0;
2214
2215         if (debug_prog_name == 0)
2216                 debug_prog_name = "debugfs";
2217
2218         add_error_table(&et_ext2_error_table);
2219         fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2220                  E2FSPROGS_VERSION, E2FSPROGS_DATE);
2221
2222         while ((c = getopt (argc, argv, "iwcR:f:b:s:Vd:D")) != EOF) {
2223                 switch (c) {
2224                 case 'R':
2225                         request = optarg;
2226                         break;
2227                 case 'f':
2228                         cmd_file = optarg;
2229                         break;
2230                 case 'd':
2231                         data_filename = optarg;
2232                         break;
2233                 case 'i':
2234                         open_flags |= EXT2_FLAG_IMAGE_FILE;
2235                         break;
2236                 case 'w':
2237                         open_flags |= EXT2_FLAG_RW;
2238                         break;
2239                 case 'D':
2240                         open_flags |= EXT2_FLAG_DIRECT_IO;
2241                         break;
2242                 case 'b':
2243                         blocksize = parse_ulong(optarg, argv[0],
2244                                                 "block size", 0);
2245                         break;
2246                 case 's':
2247                         superblock = parse_ulong(optarg, argv[0],
2248                                                  "superblock number", 0);
2249                         break;
2250                 case 'c':
2251                         catastrophic = 1;
2252                         break;
2253                 case 'V':
2254                         /* Print version number and exit */
2255                         fprintf(stderr, "\tUsing %s\n",
2256                                 error_message(EXT2_ET_BASE));
2257                         exit(0);
2258                 default:
2259                         com_err(argv[0], 0, usage, debug_prog_name);
2260                         return 1;
2261                 }
2262         }
2263         if (optind < argc)
2264                 open_filesystem(argv[optind], open_flags,
2265                                 superblock, blocksize, catastrophic,
2266                                 data_filename);
2267
2268         sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2269                                        &debug_cmds, &retval);
2270         if (retval) {
2271                 ss_perror(sci_idx, retval, "creating invocation");
2272                 exit(1);
2273         }
2274         ss_get_readline(sci_idx);
2275
2276         (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
2277         if (retval) {
2278                 ss_perror(sci_idx, retval, "adding standard requests");
2279                 exit (1);
2280         }
2281         if (extra_cmds)
2282                 ss_add_request_table (sci_idx, extra_cmds, 1, &retval);
2283         if (retval) {
2284                 ss_perror(sci_idx, retval, "adding extra requests");
2285                 exit (1);
2286         }
2287         if (request) {
2288                 retval = 0;
2289                 retval = ss_execute_line(sci_idx, request);
2290                 if (retval) {
2291                         ss_perror(sci_idx, retval, request);
2292                         exit_status++;
2293                 }
2294         } else if (cmd_file) {
2295                 exit_status = source_file(cmd_file, sci_idx);
2296         } else {
2297                 ss_listen(sci_idx);
2298         }
2299
2300         ss_delete_invocation(sci_idx);
2301
2302         if (current_fs)
2303                 close_filesystem();
2304
2305         remove_error_table(&et_ext2_error_table);
2306         return exit_status;
2307 }