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 #ifdef HAVE_GETOPT_H
  19 #include <getopt.h>
  20 #else
  21 extern int optind;
  22 extern char *optarg;
  23 #endif
  24 #ifdef HAVE_ERRNO_H
  25 #include <errno.h>
  26 #endif
  27 #include <fcntl.h>
  28
  29 #include "debugfs.h"
  30 #include "uuid/uuid.h"
  31 #include "e2p/e2p.h"
  32
  33 #include <ext2fs/ext2_ext_attr.h>
  34
  35 #include "../version.h"
  36 #include "jfs_user.h"
  37
  38 #ifndef BUFSIZ
  39 #define BUFSIZ 8192
  40 #endif
  41
  42 ss_request_table *extra_cmds;
  43 const char *debug_prog_name;
  44 int sci_idx;
  45
  46 ext2_ino_t      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         if (catastrophic)
  82                 open_flags |= EXT2_FLAG_SKIP_MMP;
  83
  84         retval = ext2fs_open(device, open_flags, superblock, blocksize,
  85                              unix_io_manager, &current_fs);
  86         if (retval) {
  87                 com_err(device, retval, "while opening filesystem");
  88                 current_fs = NULL;
  89                 return;
  90         }
  91         current_fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
  92
  93         if (catastrophic)
  94                 com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps");
  95         else {
  96                 retval = ext2fs_read_inode_bitmap(current_fs);
  97                 if (retval) {
  98                         com_err(device, retval, "while reading inode bitmap");
  99                         goto errout;
 100                 }
 101                 retval = ext2fs_read_block_bitmap(current_fs);
 102                 if (retval) {
 103                         com_err(device, retval, "while reading block bitmap");
 104                         goto errout;
 105                 }
 106         }
 107
 108         if (data_io) {
 109                 retval = ext2fs_set_data_io(current_fs, data_io);
 110                 if (retval) {
 111                         com_err(device, retval,
 112                                 "while setting data source");
 113                         goto errout;
 114                 }
 115         }
 116
 117         root = cwd = EXT2_ROOT_INO;
 118         return;
 119
 120 errout:
 121         retval = ext2fs_close(current_fs);
 122         if (retval)
 123                 com_err(device, retval, "while trying to close filesystem");
 124         current_fs = NULL;
 125 }
 126
 127 void do_open_filesys(int argc, char **argv)
 128 {
 129         int     c, err;
 130         int     catastrophic = 0;
 131         blk64_t superblock = 0;
 132         blk64_t blocksize = 0;
 133         int     open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
 134         char    *data_filename = 0;
 135
 136         reset_getopt();
 137         while ((c = getopt (argc, argv, "iwfecb:s:d:D")) != EOF) {
 138                 switch (c) {
 139                 case 'i':
 140                         open_flags |= EXT2_FLAG_IMAGE_FILE;
 141                         break;
 142                 case 'w':
 143 #ifdef READ_ONLY
 144                         goto print_usage;
 145 #else
 146                         open_flags |= EXT2_FLAG_RW;
 147 #endif /* READ_ONLY */
 148                         break;
 149                 case 'f':
 150                         open_flags |= EXT2_FLAG_FORCE;
 151                         break;
 152                 case 'e':
 153                         open_flags |= EXT2_FLAG_EXCLUSIVE;
 154                         break;
 155                 case 'c':
 156                         catastrophic = 1;
 157                         break;
 158                 case 'd':
 159                         data_filename = optarg;
 160                         break;
 161                 case 'D':
 162                         open_flags |= EXT2_FLAG_DIRECT_IO;
 163                         break;
 164                 case 'b':
 165                         blocksize = parse_ulong(optarg, argv[0],
 166                                                 "block size", &err);
 167                         if (err)
 168                                 return;
 169                         break;
 170                 case 's':
 171                         err = strtoblk(argv[0], optarg,
 172                                        "superblock block number", &superblock);
 173                         if (err)
 174                                 return;
 175                         break;
 176                 default:
 177                         goto print_usage;
 178                 }
 179         }
 180         if (optind != argc-1) {
 181                 goto print_usage;
 182         }
 183         if (check_fs_not_open(argv[0]))
 184                 return;
 185         open_filesystem(argv[optind], open_flags,
 186                         superblock, blocksize, catastrophic,
 187                         data_filename);
 188         return;
 189
 190 print_usage:
 191         fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] "
 192                 "[-d image_filename] [-c] [-i] [-f] [-e] [-D] "
 193 #ifndef READ_ONLY
 194                 "[-w] "
 195 #endif
 196                 "<device>\n", argv[0]);
 197 }
 198
 199 void do_lcd(int argc, char **argv)
 200 {
 201         if (argc != 2) {
 202                 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>");
 203                 return;
 204         }
 205
 206         if (chdir(argv[1]) == -1) {
 207                 com_err(argv[0], errno,
 208                         "while trying to change native directory to %s",
 209                         argv[1]);
 210                 return;
 211         }
 212 }
 213
 214 static void close_filesystem(NOARGS)
 215 {
 216         int     retval;
 217
 218         if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
 219                 retval = ext2fs_write_inode_bitmap(current_fs);
 220                 if (retval)
 221                         com_err("ext2fs_write_inode_bitmap", retval, 0);
 222         }
 223         if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
 224                 retval = ext2fs_write_block_bitmap(current_fs);
 225                 if (retval)
 226                         com_err("ext2fs_write_block_bitmap", retval, 0);
 227         }
 228         retval = ext2fs_close(current_fs);
 229         if (retval)
 230                 com_err("ext2fs_close", retval, 0);
 231         current_fs = NULL;
 232         return;
 233 }
 234
 235 void do_close_filesys(int argc, char **argv)
 236 {
 237         int     c;
 238
 239         if (check_fs_open(argv[0]))
 240                 return;
 241
 242         reset_getopt();
 243         while ((c = getopt (argc, argv, "a")) != EOF) {
 244                 switch (c) {
 245                 case 'a':
 246                         current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
 247                         break;
 248                 default:
 249                         goto print_usage;
 250                 }
 251         }
 252
 253         if (argc > optind) {
 254         print_usage:
 255                 com_err(0, 0, "Usage: close_filesys [-a]");
 256                 return;
 257         }
 258
 259         close_filesystem();
 260 }
 261
 262 #ifndef READ_ONLY
 263 void do_init_filesys(int argc, char **argv)
 264 {
 265         struct ext2_super_block param;
 266         errcode_t       retval;
 267         int             err;
 268         blk64_t         blocks;
 269
 270         if (common_args_process(argc, argv, 3, 3, "initialize",
 271                                 "<device> <blocks>", CHECK_FS_NOTOPEN))
 272                 return;
 273
 274         memset(&param, 0, sizeof(struct ext2_super_block));
 275         err = strtoblk(argv[0], argv[2], "blocks count", &blocks);
 276         if (err)
 277                 return;
 278         ext2fs_blocks_count_set(&param, blocks);
 279         retval = ext2fs_initialize(argv[1], 0, &param,
 280                                    unix_io_manager, &current_fs);
 281         if (retval) {
 282                 com_err(argv[1], retval, "while initializing filesystem");
 283                 current_fs = NULL;
 284                 return;
 285         }
 286         root = cwd = EXT2_ROOT_INO;
 287         return;
 288 }
 289
 290 static void print_features(struct ext2_super_block * s, FILE *f)
 291 {
 292         int     i, j, printed=0;
 293         __u32   *mask = &s->s_feature_compat, m;
 294
 295         fputs("Filesystem features:", f);
 296         for (i=0; i <3; i++,mask++) {
 297                 for (j=0,m=1; j < 32; j++, m<<=1) {
 298                         if (*mask & m) {
 299                                 fprintf(f, " %s", e2p_feature2string(i, m));
 300                                 printed++;
 301                         }
 302                 }
 303         }
 304         if (printed == 0)
 305                 fputs("(none)", f);
 306         fputs("\n", f);
 307 }
 308 #endif /* READ_ONLY */
 309
 310 static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask,
 311                           const char *str, int *first, FILE *f)
 312 {
 313         if (ext2fs_bg_flags_test(fs, group, mask)) {
 314                 if (*first) {
 315                         fputs("           [", f);
 316                         *first = 0;
 317                 } else
 318                         fputs(", ", f);
 319                 fputs(str, f);
 320         }
 321 }
 322
 323 void do_show_super_stats(int argc, char *argv[])
 324 {
 325         const char *units ="block";
 326         dgrp_t  i;
 327         FILE    *out;
 328         int     c, header_only = 0;
 329         int     numdirs = 0, first, gdt_csum;
 330
 331         reset_getopt();
 332         while ((c = getopt (argc, argv, "h")) != EOF) {
 333                 switch (c) {
 334                 case 'h':
 335                         header_only++;
 336                         break;
 337                 default:
 338                         goto print_usage;
 339                 }
 340         }
 341         if (optind != argc) {
 342                 goto print_usage;
 343         }
 344         if (check_fs_open(argv[0]))
 345                 return;
 346         out = open_pager();
 347
 348         if (EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super,
 349                                        EXT4_FEATURE_RO_COMPAT_BIGALLOC))
 350                 units = "cluster";
 351
 352         list_super2(current_fs->super, out);
 353         for (i=0; i < current_fs->group_desc_count; i++)
 354                 numdirs += ext2fs_bg_used_dirs_count(current_fs, i);
 355         fprintf(out, "Directories:              %d\n", numdirs);
 356
 357         if (header_only) {
 358                 close_pager(out);
 359                 return;
 360         }
 361
 362         gdt_csum = ext2fs_has_group_desc_csum(current_fs);
 363         for (i = 0; i < current_fs->group_desc_count; i++) {
 364                 fprintf(out, " Group %2d: block bitmap at %llu, "
 365                         "inode bitmap at %llu, "
 366                         "inode table at %llu\n"
 367                         "           %u free %s%s, "
 368                         "%u free %s, "
 369                         "%u used %s%s",
 370                         i, ext2fs_block_bitmap_loc(current_fs, i),
 371                         ext2fs_inode_bitmap_loc(current_fs, i),
 372                         ext2fs_inode_table_loc(current_fs, i),
 373                         ext2fs_bg_free_blocks_count(current_fs, i), units,
 374                         ext2fs_bg_free_blocks_count(current_fs, i) != 1 ?
 375                         "s" : "",
 376                         ext2fs_bg_free_inodes_count(current_fs, i),
 377                         ext2fs_bg_free_inodes_count(current_fs, i) != 1 ?
 378                         "inodes" : "inode",
 379                         ext2fs_bg_used_dirs_count(current_fs, i),
 380                         ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories"
 381                                 : "directory", gdt_csum ? ", " : "\n");
 382                 if (gdt_csum)
 383                         fprintf(out, "%u unused %s\n",
 384                                 ext2fs_bg_itable_unused(current_fs, i),
 385                                 ext2fs_bg_itable_unused(current_fs, i) != 1 ?
 386                                 "inodes" : "inode");
 387                 first = 1;
 388                 print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init",
 389                               &first, out);
 390                 print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init",
 391                               &first, out);
 392                 if (gdt_csum) {
 393                         fprintf(out, "%sChecksum 0x%04x",
 394                                 first ? "           [":", ", ext2fs_bg_checksum(current_fs, i));
 395                         first = 0;
 396                 }
 397                 if (!first)
 398                         fputs("]\n", out);
 399         }
 400         close_pager(out);
 401         return;
 402 print_usage:
 403         fprintf(stderr, "%s: Usage: show_super [-h]\n", argv[0]);
 404 }
 405
 406 #ifndef READ_ONLY
 407 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
 408                       char **argv EXT2FS_ATTR((unused)))
 409 {
 410         if (check_fs_open(argv[0]))
 411                 return;
 412         if (check_fs_read_write(argv[0]))
 413                 return;
 414
 415         if (argv[1] && !strcmp(argv[1], "-clean"))
 416                 current_fs->super->s_state |= EXT2_VALID_FS;
 417         else
 418                 current_fs->super->s_state &= ~EXT2_VALID_FS;
 419         ext2fs_mark_super_dirty(current_fs);
 420 }
 421 #endif /* READ_ONLY */
 422
 423 struct list_blocks_struct {
 424         FILE            *f;
 425         e2_blkcnt_t     total;
 426         blk64_t         first_block, last_block;
 427         e2_blkcnt_t     first_bcnt, last_bcnt;
 428         e2_blkcnt_t     first;
 429 };
 430
 431 static void finish_range(struct list_blocks_struct *lb)
 432 {
 433         if (lb->first_block == 0)
 434                 return;
 435         if (lb->first)
 436                 lb->first = 0;
 437         else
 438                 fprintf(lb->f, ", ");
 439         if (lb->first_block == lb->last_block)
 440                 fprintf(lb->f, "(%lld):%llu",
 441                         (long long)lb->first_bcnt, lb->first_block);
 442         else
 443                 fprintf(lb->f, "(%lld-%lld):%llu-%llu",
 444                         (long long)lb->first_bcnt, (long long)lb->last_bcnt,
 445                         lb->first_block, lb->last_block);
 446         lb->first_block = 0;
 447 }
 448
 449 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
 450                             blk64_t *blocknr, e2_blkcnt_t blockcnt,
 451                             blk64_t ref_block EXT2FS_ATTR((unused)),
 452                             int ref_offset EXT2FS_ATTR((unused)),
 453                             void *private)
 454 {
 455         struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
 456
 457         lb->total++;
 458         if (blockcnt >= 0) {
 459                 /*
 460                  * See if we can add on to the existing range (if it exists)
 461                  */
 462                 if (lb->first_block &&
 463                     (lb->last_block+1 == *blocknr) &&
 464                     (lb->last_bcnt+1 == blockcnt)) {
 465                         lb->last_block = *blocknr;
 466                         lb->last_bcnt = blockcnt;
 467                         return 0;
 468                 }
 469                 /*
 470                  * Start a new range.
 471                  */
 472                 finish_range(lb);
 473                 lb->first_block = lb->last_block = *blocknr;
 474                 lb->first_bcnt = lb->last_bcnt = blockcnt;
 475                 return 0;
 476         }
 477         /*
 478          * Not a normal block.  Always force a new range.
 479          */
 480         finish_range(lb);
 481         if (lb->first)
 482                 lb->first = 0;
 483         else
 484                 fprintf(lb->f, ", ");
 485         if (blockcnt == -1)
 486                 fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr);
 487         else if (blockcnt == -2)
 488                 fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr);
 489         else if (blockcnt == -3)
 490                 fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr);
 491         return 0;
 492 }
 493
 494 static void dump_xattr_string(FILE *out, const char *str, int len)
 495 {
 496         int printable = 0;
 497         int i;
 498
 499         /* check: is string "printable enough?" */
 500         for (i = 0; i < len; i++)
 501                 if (isprint(str[i]))
 502                         printable++;
 503
 504         if (printable <= len*7/8)
 505                 printable = 0;
 506
 507         for (i = 0; i < len; i++)
 508                 if (printable)
 509                         fprintf(out, isprint(str[i]) ? "%c" : "\\%03o",
 510                                 (unsigned char)str[i]);
 511                 else
 512                         fprintf(out, "%02x ", (unsigned char)str[i]);
 513 }
 514
 515 static void internal_dump_inode_extra(FILE *out,
 516                                       const char *prefix EXT2FS_ATTR((unused)),
 517                                       ext2_ino_t inode_num EXT2FS_ATTR((unused)),
 518                                       struct ext2_inode_large *inode)
 519 {
 520         struct ext2_ext_attr_entry *entry;
 521         __u32 *magic;
 522         char *start, *end;
 523         unsigned int storage_size;
 524
 525         fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
 526         if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
 527                         EXT2_GOOD_OLD_INODE_SIZE) {
 528                 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
 529                                 inode->i_extra_isize);
 530                 return;
 531         }
 532 }
 533
 534 /* Dump extended attributes */
 535 static int dump_attr(char *name, char *value, size_t value_len, void *data)
 536 {
 537         FILE *out = data;
 538
 539         fprintf(out, "  ");
 540         dump_xattr_string(out, name, strlen(name));
 541         fprintf(out, " = \"");
 542         dump_xattr_string(out, value, value_len);
 543         fprintf(out, "\" (%zu)\n", value_len);
 544
 545         return 0;
 546 }
 547
 548 static void dump_inode_attributes(FILE *out, ext2_ino_t ino)
 549 {
 550         struct ext2_xattr_handle *h;
 551         errcode_t err;
 552
 553         err = ext2fs_xattrs_open(current_fs, ino, &h);
 554         if (err)
 555                 return;
 556
 557         err = ext2fs_xattrs_read(h);
 558         if (err)
 559                 goto out;
 560
 561         if (ext2fs_xattrs_count(h) == 0)
 562                 goto out;
 563
 564         fprintf(out, "Extended attributes:\n");
 565         err = ext2fs_xattrs_iterate(h, dump_attr, out);
 566         if (err)
 567                 goto out;
 568
 569 out:
 570         err = ext2fs_xattrs_close(&h);
 571 }
 572
 573 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
 574 {
 575         struct list_blocks_struct lb;
 576
 577         fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
 578         lb.total = 0;
 579         lb.first_block = 0;
 580         lb.f = f;
 581         lb.first = 1;
 582         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
 583                               list_blocks_proc, (void *)&lb);
 584         finish_range(&lb);
 585         if (lb.total)
 586                 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
 587         fprintf(f,"\n");
 588 }
 589
 590 static int int_log10(unsigned long long arg)
 591 {
 592         int     l = 0;
 593
 594         arg = arg / 10;
 595         while (arg) {
 596                 l++;
 597                 arg = arg / 10;
 598         }
 599         return l;
 600 }
 601
 602 #define DUMP_LEAF_EXTENTS       0x01
 603 #define DUMP_NODE_EXTENTS       0x02
 604 #define DUMP_EXTENT_TABLE       0x04
 605
 606 static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino,
 607                          int flags, int logical_width, int physical_width)
 608 {
 609         ext2_extent_handle_t    handle;
 610         struct ext2fs_extent    extent;
 611         struct ext2_extent_info info;
 612         int                     op = EXT2_EXTENT_ROOT;
 613         unsigned int            printed = 0;
 614         errcode_t               errcode;
 615
 616         errcode = ext2fs_extent_open(current_fs, ino, &handle);
 617         if (errcode)
 618                 return;
 619
 620         if (flags & DUMP_EXTENT_TABLE)
 621                 fprintf(f, "Level Entries %*s %*s Length Flags\n",
 622                         (logical_width*2)+3, "Logical",
 623                         (physical_width*2)+3, "Physical");
 624         else
 625                 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix);
 626
 627         while (1) {
 628                 errcode = ext2fs_extent_get(handle, op, &extent);
 629
 630                 if (errcode)
 631                         break;
 632
 633                 op = EXT2_EXTENT_NEXT;
 634
 635                 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 636                         continue;
 637
 638                 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
 639                         if ((flags & DUMP_LEAF_EXTENTS) == 0)
 640                                 continue;
 641                 } else {
 642                         if ((flags & DUMP_NODE_EXTENTS) == 0)
 643                                 continue;
 644                 }
 645
 646                 errcode = ext2fs_extent_get_info(handle, &info);
 647                 if (errcode)
 648                         continue;
 649
 650                 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) {
 651                         if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 652                                 continue;
 653
 654                         if (flags & DUMP_EXTENT_TABLE) {
 655                                 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 656                                         "%*llu%*s %6u\n",
 657                                         info.curr_level, info.max_depth,
 658                                         info.curr_entry, info.num_entries,
 659                                         logical_width,
 660                                         extent.e_lblk,
 661                                         logical_width,
 662                                         extent.e_lblk + (extent.e_len - 1),
 663                                         physical_width,
 664                                         extent.e_pblk,
 665                                         physical_width+3, "", extent.e_len);
 666                                 continue;
 667                         }
 668
 669                         fprintf(f, "%s(ETB%d):%lld",
 670                                 printed ? ", " : "", info.curr_level,
 671                                 extent.e_pblk);
 672                         printed = 1;
 673                         continue;
 674                 }
 675
 676                 if (flags & DUMP_EXTENT_TABLE) {
 677                         fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 678                                 "%*llu - %*llu %6u %s\n",
 679                                 info.curr_level, info.max_depth,
 680                                 info.curr_entry, info.num_entries,
 681                                 logical_width,
 682                                 extent.e_lblk,
 683                                 logical_width,
 684                                 extent.e_lblk + (extent.e_len - 1),
 685                                 physical_width,
 686                                 extent.e_pblk,
 687                                 physical_width,
 688                                 extent.e_pblk + (extent.e_len - 1),
 689                                 extent.e_len,
 690                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 691                                         "Uninit" : "");
 692                         continue;
 693                 }
 694
 695                 if (extent.e_len == 0)
 696                         continue;
 697                 else if (extent.e_len == 1)
 698                         fprintf(f,
 699                                 "%s(%lld%s):%lld",
 700                                 printed ? ", " : "",
 701                                 extent.e_lblk,
 702                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 703                                 "[u]" : "",
 704                                 extent.e_pblk);
 705                 else
 706                         fprintf(f,
 707                                 "%s(%lld-%lld%s):%lld-%lld",
 708                                 printed ? ", " : "",
 709                                 extent.e_lblk,
 710                                 extent.e_lblk + (extent.e_len - 1),
 711                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 712                                         "[u]" : "",
 713                                 extent.e_pblk,
 714                                 extent.e_pblk + (extent.e_len - 1));
 715                 printed = 1;
 716         }
 717         if (printed)
 718                 fprintf(f, "\n");
 719 }
 720
 721 static void dump_inline_data(FILE *out, const char *prefix, ext2_ino_t inode_num)
 722 {
 723         errcode_t retval;
 724         size_t size;
 725
 726         retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
 727         if (!retval)
 728                 fprintf(out, "%sSize of inline data: %d", prefix, size);
 729 }
 730
 731 void internal_dump_inode(FILE *out, const char *prefix,
 732                          ext2_ino_t inode_num, struct ext2_inode *inode,
 733                          int do_dump_blocks)
 734 {
 735         const char *i_type;
 736         char frag, fsize;
 737         int os = current_fs->super->s_creator_os;
 738         struct ext2_inode_large *large_inode;
 739         int is_large_inode = 0;
 740
 741         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 742                 is_large_inode = 1;
 743         large_inode = (struct ext2_inode_large *) inode;
 744
 745         if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
 746         else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
 747         else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
 748         else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
 749         else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
 750         else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
 751         else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
 752         else i_type = "bad type";
 753         fprintf(out, "%sInode: %u   Type: %s    ", prefix, inode_num, i_type);
 754         fprintf(out, "%sMode:  %04o   Flags: 0x%x\n",
 755                 prefix, inode->i_mode & 0777, inode->i_flags);
 756         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 757                 fprintf(out, "%sGeneration: %u    Version: 0x%08x:%08x\n",
 758                         prefix, inode->i_generation, large_inode->i_version_hi,
 759                         inode->osd1.linux1.l_i_version);
 760         } else {
 761                 fprintf(out, "%sGeneration: %u    Version: 0x%08x\n", prefix,
 762                         inode->i_generation, inode->osd1.linux1.l_i_version);
 763         }
 764         fprintf(out, "%sUser: %5d   Group: %5d   Size: ",
 765                 prefix, inode_uid(*inode), inode_gid(*inode));
 766         if (LINUX_S_ISREG(inode->i_mode))
 767                 fprintf(out, "%llu\n", EXT2_I_SIZE(inode));
 768         else
 769                 fprintf(out, "%d\n", inode->i_size);
 770         if (os == EXT2_OS_HURD)
 771                 fprintf(out,
 772                         "%sFile ACL: %d    Directory ACL: %d Translator: %d\n",
 773                         prefix,
 774                         inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0,
 775                         inode->osd1.hurd1.h_i_translator);
 776         else
 777                 fprintf(out, "%sFile ACL: %llu    Directory ACL: %d\n",
 778                         prefix,
 779                         inode->i_file_acl | ((long long)
 780                                 (inode->osd2.linux2.l_i_file_acl_high) << 32),
 781                         LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0);
 782         if (os == EXT2_OS_LINUX)
 783                 fprintf(out, "%sLinks: %d   Blockcount: %llu\n",
 784                         prefix, inode->i_links_count,
 785                         (((unsigned long long)
 786                           inode->osd2.linux2.l_i_blocks_hi << 32)) +
 787                         inode->i_blocks);
 788         else
 789                 fprintf(out, "%sLinks: %d   Blockcount: %u\n",
 790                         prefix, inode->i_links_count, inode->i_blocks);
 791         switch (os) {
 792             case EXT2_OS_HURD:
 793                 frag = inode->osd2.hurd2.h_i_frag;
 794                 fsize = inode->osd2.hurd2.h_i_fsize;
 795                 break;
 796             default:
 797                 frag = fsize = 0;
 798         }
 799         fprintf(out, "%sFragment:  Address: %d    Number: %d    Size: %d\n",
 800                 prefix, inode->i_faddr, frag, fsize);
 801         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 802                 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
 803                         inode->i_ctime, large_inode->i_ctime_extra,
 804                         time_to_string(inode->i_ctime));
 805                 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
 806                         inode->i_atime, large_inode->i_atime_extra,
 807                         time_to_string(inode->i_atime));
 808                 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
 809                         inode->i_mtime, large_inode->i_mtime_extra,
 810                         time_to_string(inode->i_mtime));
 811                 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
 812                         large_inode->i_crtime, large_inode->i_crtime_extra,
 813                         time_to_string(large_inode->i_crtime));
 814         } else {
 815                 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
 816                         time_to_string(inode->i_ctime));
 817                 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
 818                         time_to_string(inode->i_atime));
 819                 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
 820                         time_to_string(inode->i_mtime));
 821         }
 822         if (inode->i_dtime)
 823           fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime,
 824                   time_to_string(inode->i_dtime));
 825         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 826                 internal_dump_inode_extra(out, prefix, inode_num,
 827                                           (struct ext2_inode_large *) inode);
 828         dump_inode_attributes(out, inode_num);
 829         if (current_fs->super->s_creator_os == EXT2_OS_LINUX &&
 830             current_fs->super->s_feature_ro_compat &
 831                 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) {
 832                 __u32 crc = inode->i_checksum_lo;
 833                 if (is_large_inode &&
 834                     large_inode->i_extra_isize >=
 835                                 (offsetof(struct ext2_inode_large,
 836                                           i_checksum_hi) -
 837                                  EXT2_GOOD_OLD_INODE_SIZE))
 838                         crc |= ((__u32)large_inode->i_checksum_hi) << 16;
 839                 fprintf(out, "Inode checksum: 0x%08x\n", crc);
 840         }
 841
 842         if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_inode_data_blocks(current_fs,inode) == 0)
 843                 fprintf(out, "%sFast_link_dest: %.*s\n", prefix,
 844                         (int) inode->i_size, (char *)inode->i_block);
 845         else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
 846                 int major, minor;
 847                 const char *devnote;
 848
 849                 if (inode->i_block[0]) {
 850                         major = (inode->i_block[0] >> 8) & 255;
 851                         minor = inode->i_block[0] & 255;
 852                         devnote = "";
 853                 } else {
 854                         major = (inode->i_block[1] & 0xfff00) >> 8;
 855                         minor = ((inode->i_block[1] & 0xff) |
 856                                  ((inode->i_block[1] >> 12) & 0xfff00));
 857                         devnote = "(New-style) ";
 858                 }
 859                 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
 860                         devnote, major, minor, major, minor);
 861         } else if (do_dump_blocks) {
 862                 if (inode->i_flags & EXT4_EXTENTS_FL)
 863                         dump_extents(out, prefix, inode_num,
 864                                      DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0);
 865                 else if (inode->i_flags & EXT4_INLINE_DATA_FL)
 866                         dump_inline_data(out, prefix, inode_num);
 867                 else
 868                         dump_blocks(out, prefix, inode_num);
 869         }
 870 }
 871
 872 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
 873 {
 874         FILE    *out;
 875
 876         out = open_pager();
 877         internal_dump_inode(out, "", inode_num, inode, 1);
 878         close_pager(out);
 879 }
 880
 881 void do_stat(int argc, char *argv[])
 882 {
 883         ext2_ino_t      inode;
 884         struct ext2_inode * inode_buf;
 885
 886         if (check_fs_open(argv[0]))
 887                 return;
 888
 889         inode_buf = (struct ext2_inode *)
 890                         malloc(EXT2_INODE_SIZE(current_fs->super));
 891         if (!inode_buf) {
 892                 fprintf(stderr, "do_stat: can't allocate buffer\n");
 893                 return;
 894         }
 895
 896         if (common_inode_args_process(argc, argv, &inode, 0)) {
 897                 free(inode_buf);
 898                 return;
 899         }
 900
 901         if (debugfs_read_inode_full(inode, inode_buf, argv[0],
 902                                         EXT2_INODE_SIZE(current_fs->super))) {
 903                 free(inode_buf);
 904                 return;
 905         }
 906
 907         dump_inode(inode, inode_buf);
 908         free(inode_buf);
 909         return;
 910 }
 911
 912 void do_dump_extents(int argc, char **argv)
 913 {
 914         struct ext2_inode inode;
 915         ext2_ino_t      ino;
 916         FILE            *out;
 917         int             c, flags = 0;
 918         int             logical_width;
 919         int             physical_width;
 920
 921         reset_getopt();
 922         while ((c = getopt(argc, argv, "nl")) != EOF) {
 923                 switch (c) {
 924                 case 'n':
 925                         flags |= DUMP_NODE_EXTENTS;
 926                         break;
 927                 case 'l':
 928                         flags |= DUMP_LEAF_EXTENTS;
 929                         break;
 930                 }
 931         }
 932
 933         if (argc != optind + 1) {
 934                 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
 935                 return;
 936         }
 937
 938         if (flags == 0)
 939                 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
 940         flags |= DUMP_EXTENT_TABLE;
 941
 942         if (check_fs_open(argv[0]))
 943                 return;
 944
 945         ino = string_to_inode(argv[optind]);
 946         if (ino == 0)
 947                 return;
 948
 949         if (debugfs_read_inode(ino, &inode, argv[0]))
 950                 return;
 951
 952         if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
 953                 fprintf(stderr, "%s: does not uses extent block maps\n",
 954                         argv[optind]);
 955                 return;
 956         }
 957
 958         logical_width = int_log10((EXT2_I_SIZE(&inode)+current_fs->blocksize-1)/
 959                                   current_fs->blocksize) + 1;
 960         if (logical_width < 5)
 961                 logical_width = 5;
 962         physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1;
 963         if (physical_width < 5)
 964                 physical_width = 5;
 965
 966         out = open_pager();
 967         dump_extents(out, "", ino, flags, logical_width, physical_width);
 968         close_pager(out);
 969         return;
 970 }
 971
 972 static int print_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
 973                              blk64_t *blocknr,
 974                              e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
 975                              blk64_t ref_block EXT2FS_ATTR((unused)),
 976                              int ref_offset EXT2FS_ATTR((unused)),
 977                              void *private EXT2FS_ATTR((unused)))
 978 {
 979         printf("%llu ", *blocknr);
 980         return 0;
 981 }
 982
 983 void do_blocks(int argc, char *argv[])
 984 {
 985         ext2_ino_t      inode;
 986
 987         if (check_fs_open(argv[0]))
 988                 return;
 989
 990         if (common_inode_args_process(argc, argv, &inode, 0)) {
 991                 return;
 992         }
 993
 994         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
 995                               print_blocks_proc, NULL);
 996         fputc('\n', stdout);
 997         return;
 998 }
 999
1000 void do_chroot(int argc, char *argv[])
1001 {
1002         ext2_ino_t inode;
1003         int retval;
1004
1005         if (common_inode_args_process(argc, argv, &inode, 0))
1006                 return;
1007
1008         retval = ext2fs_check_directory(current_fs, inode);
1009         if (retval)  {
1010                 com_err(argv[1], retval, 0);
1011                 return;
1012         }
1013         root = inode;
1014 }
1015
1016 #ifndef READ_ONLY
1017 void do_clri(int argc, char *argv[])
1018 {
1019         ext2_ino_t inode;
1020         struct ext2_inode inode_buf;
1021
1022         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1023                 return;
1024
1025         if (debugfs_read_inode(inode, &inode_buf, argv[0]))
1026                 return;
1027         memset(&inode_buf, 0, sizeof(inode_buf));
1028         if (debugfs_write_inode(inode, &inode_buf, argv[0]))
1029                 return;
1030 }
1031
1032 void do_freei(int argc, char *argv[])
1033 {
1034         unsigned int    len = 1;
1035         int             err = 0;
1036         ext2_ino_t      inode;
1037
1038         if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1039                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1040                 return;
1041         if (check_fs_read_write(argv[0]))
1042                 return;
1043
1044         inode = string_to_inode(argv[1]);
1045         if (!inode)
1046                 return;
1047
1048         if (argc == 3) {
1049                 len = parse_ulong(argv[2], argv[0], "length", &err);
1050                 if (err)
1051                         return;
1052         }
1053
1054         if (len == 1 &&
1055             !ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1056                 com_err(argv[0], 0, "Warning: inode already clear");
1057         while (len-- > 0)
1058                 ext2fs_unmark_inode_bitmap2(current_fs->inode_map, inode++);
1059         ext2fs_mark_ib_dirty(current_fs);
1060 }
1061
1062 void do_seti(int argc, char *argv[])
1063 {
1064         unsigned int    len = 1;
1065         int             err = 0;
1066         ext2_ino_t      inode;
1067
1068         if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1069                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1070                 return;
1071         if (check_fs_read_write(argv[0]))
1072                 return;
1073
1074         inode = string_to_inode(argv[1]);
1075         if (!inode)
1076                 return;
1077
1078         if (argc == 3) {
1079                 len = parse_ulong(argv[2], argv[0], "length", &err);
1080                 if (err)
1081                         return;
1082         }
1083
1084         if ((len == 1) &&
1085             ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1086                 com_err(argv[0], 0, "Warning: inode already set");
1087         while (len-- > 0)
1088                 ext2fs_mark_inode_bitmap2(current_fs->inode_map, inode++);
1089         ext2fs_mark_ib_dirty(current_fs);
1090 }
1091 #endif /* READ_ONLY */
1092
1093 void do_testi(int argc, char *argv[])
1094 {
1095         ext2_ino_t inode;
1096
1097         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
1098                 return;
1099
1100         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1101                 printf("Inode %u is marked in use\n", inode);
1102         else
1103                 printf("Inode %u is not in use\n", inode);
1104 }
1105
1106 #ifndef READ_ONLY
1107 void do_freeb(int argc, char *argv[])
1108 {
1109         blk64_t block;
1110         blk64_t count = 1;
1111
1112         if (common_block_args_process(argc, argv, &block, &count))
1113                 return;
1114         if (check_fs_read_write(argv[0]))
1115                 return;
1116         while (count-- > 0) {
1117                 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
1118                         com_err(argv[0], 0, "Warning: block %llu already clear",
1119                                 block);
1120                 ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
1121                 block++;
1122         }
1123         ext2fs_mark_bb_dirty(current_fs);
1124 }
1125
1126 void do_setb(int argc, char *argv[])
1127 {
1128         blk64_t block;
1129         blk64_t count = 1;
1130
1131         if (common_block_args_process(argc, argv, &block, &count))
1132                 return;
1133         if (check_fs_read_write(argv[0]))
1134                 return;
1135         while (count-- > 0) {
1136                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1137                         com_err(argv[0], 0, "Warning: block %llu already set",
1138                                 block);
1139                 ext2fs_mark_block_bitmap2(current_fs->block_map,block);
1140                 block++;
1141         }
1142         ext2fs_mark_bb_dirty(current_fs);
1143 }
1144 #endif /* READ_ONLY */
1145
1146 void do_testb(int argc, char *argv[])
1147 {
1148         blk64_t block;
1149         blk64_t count = 1;
1150
1151         if (common_block_args_process(argc, argv, &block, &count))
1152                 return;
1153         while (count-- > 0) {
1154                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1155                         printf("Block %llu marked in use\n", block);
1156                 else
1157                         printf("Block %llu not in use\n", block);
1158                 block++;
1159         }
1160 }
1161
1162 #ifndef READ_ONLY
1163 static void modify_u8(char *com, const char *prompt,
1164                       const char *format, __u8 *val)
1165 {
1166         char buf[200];
1167         unsigned long v;
1168         char *tmp;
1169
1170         sprintf(buf, format, *val);
1171         printf("%30s    [%s] ", prompt, buf);
1172         if (!fgets(buf, sizeof(buf), stdin))
1173                 return;
1174         if (buf[strlen (buf) - 1] == '\n')
1175                 buf[strlen (buf) - 1] = '\0';
1176         if (!buf[0])
1177                 return;
1178         v = strtoul(buf, &tmp, 0);
1179         if (*tmp)
1180                 com_err(com, 0, "Bad value - %s", buf);
1181         else
1182                 *val = v;
1183 }
1184
1185 static void modify_u16(char *com, const char *prompt,
1186                        const char *format, __u16 *val)
1187 {
1188         char buf[200];
1189         unsigned long v;
1190         char *tmp;
1191
1192         sprintf(buf, format, *val);
1193         printf("%30s    [%s] ", prompt, buf);
1194         if (!fgets(buf, sizeof(buf), stdin))
1195                 return;
1196         if (buf[strlen (buf) - 1] == '\n')
1197                 buf[strlen (buf) - 1] = '\0';
1198         if (!buf[0])
1199                 return;
1200         v = strtoul(buf, &tmp, 0);
1201         if (*tmp)
1202                 com_err(com, 0, "Bad value - %s", buf);
1203         else
1204                 *val = v;
1205 }
1206
1207 static void modify_u32(char *com, const char *prompt,
1208                        const char *format, __u32 *val)
1209 {
1210         char buf[200];
1211         unsigned long v;
1212         char *tmp;
1213
1214         sprintf(buf, format, *val);
1215         printf("%30s    [%s] ", prompt, buf);
1216         if (!fgets(buf, sizeof(buf), stdin))
1217                 return;
1218         if (buf[strlen (buf) - 1] == '\n')
1219                 buf[strlen (buf) - 1] = '\0';
1220         if (!buf[0])
1221                 return;
1222         v = strtoul(buf, &tmp, 0);
1223         if (*tmp)
1224                 com_err(com, 0, "Bad value - %s", buf);
1225         else
1226                 *val = v;
1227 }
1228
1229
1230 void do_modify_inode(int argc, char *argv[])
1231 {
1232         struct ext2_inode inode;
1233         ext2_ino_t      inode_num;
1234         int             i;
1235         unsigned char   *frag, *fsize;
1236         char            buf[80];
1237         int             os;
1238         const char      *hex_format = "0x%x";
1239         const char      *octal_format = "0%o";
1240         const char      *decimal_format = "%d";
1241         const char      *unsignedlong_format = "%lu";
1242
1243         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1244                 return;
1245
1246         os = current_fs->super->s_creator_os;
1247
1248         if (debugfs_read_inode(inode_num, &inode, argv[1]))
1249                 return;
1250
1251         modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1252         modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1253         modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1254         modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1255         modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1256         modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1257         modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1258         modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1259         modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1260         if (os == EXT2_OS_LINUX)
1261                 modify_u16(argv[0], "Block count high", unsignedlong_format,
1262                            &inode.osd2.linux2.l_i_blocks_hi);
1263         modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1264         modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1265         modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1266 #if 0
1267         modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1268 #endif
1269         modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1270         if (LINUX_S_ISDIR(inode.i_mode))
1271                 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
1272         else
1273                 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
1274
1275         if (os == EXT2_OS_HURD)
1276                 modify_u32(argv[0], "Translator Block",
1277                             decimal_format, &inode.osd1.hurd1.h_i_translator);
1278
1279         modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1280         switch (os) {
1281             case EXT2_OS_HURD:
1282                 frag = &inode.osd2.hurd2.h_i_frag;
1283                 fsize = &inode.osd2.hurd2.h_i_fsize;
1284                 break;
1285             default:
1286                 frag = fsize = 0;
1287         }
1288         if (frag)
1289                 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1290         if (fsize)
1291                 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1292
1293         for (i=0;  i < EXT2_NDIR_BLOCKS; i++) {
1294                 sprintf(buf, "Direct Block #%d", i);
1295                 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1296         }
1297         modify_u32(argv[0], "Indirect Block", decimal_format,
1298                     &inode.i_block[EXT2_IND_BLOCK]);
1299         modify_u32(argv[0], "Double Indirect Block", decimal_format,
1300                     &inode.i_block[EXT2_DIND_BLOCK]);
1301         modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1302                     &inode.i_block[EXT2_TIND_BLOCK]);
1303         if (debugfs_write_inode(inode_num, &inode, argv[1]))
1304                 return;
1305 }
1306 #endif /* READ_ONLY */
1307
1308 void do_change_working_dir(int argc, char *argv[])
1309 {
1310         ext2_ino_t      inode;
1311         int             retval;
1312
1313         if (common_inode_args_process(argc, argv, &inode, 0))
1314                 return;
1315
1316         retval = ext2fs_check_directory(current_fs, inode);
1317         if (retval) {
1318                 com_err(argv[1], retval, 0);
1319                 return;
1320         }
1321         cwd = inode;
1322         return;
1323 }
1324
1325 void do_print_working_directory(int argc, char *argv[])
1326 {
1327         int     retval;
1328         char    *pathname = NULL;
1329
1330         if (common_args_process(argc, argv, 1, 1,
1331                                 "print_working_directory", "", 0))
1332                 return;
1333
1334         retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1335         if (retval) {
1336                 com_err(argv[0], retval,
1337                         "while trying to get pathname of cwd");
1338         }
1339         printf("[pwd]   INODE: %6u  PATH: %s\n",
1340                cwd, pathname ? pathname : "NULL");
1341         if (pathname) {
1342                 free(pathname);
1343                 pathname = NULL;
1344         }
1345         retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1346         if (retval) {
1347                 com_err(argv[0], retval,
1348                         "while trying to get pathname of root");
1349         }
1350         printf("[root]  INODE: %6u  PATH: %s\n",
1351                root, pathname ? pathname : "NULL");
1352         if (pathname) {
1353                 free(pathname);
1354                 pathname = NULL;
1355         }
1356         return;
1357 }
1358
1359 #ifndef READ_ONLY
1360 static void make_link(char *sourcename, char *destname)
1361 {
1362         ext2_ino_t      ino;
1363         struct ext2_inode inode;
1364         int             retval;
1365         ext2_ino_t      dir;
1366         char            *dest, *cp, *base_name;
1367
1368         /*
1369          * Get the source inode
1370          */
1371         ino = string_to_inode(sourcename);
1372         if (!ino)
1373                 return;
1374         base_name = strrchr(sourcename, '/');
1375         if (base_name)
1376                 base_name++;
1377         else
1378                 base_name = sourcename;
1379         /*
1380          * Figure out the destination.  First see if it exists and is
1381          * a directory.
1382          */
1383         if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1384                 dest = base_name;
1385         else {
1386                 /*
1387                  * OK, it doesn't exist.  See if it is
1388                  * '<dir>/basename' or 'basename'
1389                  */
1390                 cp = strrchr(destname, '/');
1391                 if (cp) {
1392                         *cp = 0;
1393                         dir = string_to_inode(destname);
1394                         if (!dir)
1395                                 return;
1396                         dest = cp+1;
1397                 } else {
1398                         dir = cwd;
1399                         dest = destname;
1400                 }
1401         }
1402
1403         if (debugfs_read_inode(ino, &inode, sourcename))
1404                 return;
1405
1406         retval = ext2fs_link(current_fs, dir, dest, ino,
1407                              ext2_file_type(inode.i_mode));
1408         if (retval)
1409                 com_err("make_link", retval, 0);
1410         return;
1411 }
1412
1413
1414 void do_link(int argc, char *argv[])
1415 {
1416         if (common_args_process(argc, argv, 3, 3, "link",
1417                                 "<source file> <dest_name>", CHECK_FS_RW))
1418                 return;
1419
1420         make_link(argv[1], argv[2]);
1421 }
1422
1423 static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1424                             e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1425                             blk64_t ref_block EXT2FS_ATTR((unused)),
1426                             int ref_offset EXT2FS_ATTR((unused)),
1427                             void *private EXT2FS_ATTR((unused)))
1428 {
1429         blk64_t block;
1430
1431         block = *blocknr;
1432         ext2fs_block_alloc_stats2(fs, block, +1);
1433         return 0;
1434 }
1435
1436 void do_undel(int argc, char *argv[])
1437 {
1438         ext2_ino_t      ino;
1439         struct ext2_inode inode;
1440
1441         if (common_args_process(argc, argv, 2, 3, "undelete",
1442                                 "<inode_num> [dest_name]",
1443                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1444                 return;
1445
1446         ino = string_to_inode(argv[1]);
1447         if (!ino)
1448                 return;
1449
1450         if (debugfs_read_inode(ino, &inode, argv[1]))
1451                 return;
1452
1453         if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
1454                 com_err(argv[1], 0, "Inode is not marked as deleted");
1455                 return;
1456         }
1457
1458         /*
1459          * XXX this function doesn't handle changing the links count on the
1460          * parent directory when undeleting a directory.
1461          */
1462         inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1463         inode.i_dtime = 0;
1464
1465         if (debugfs_write_inode(ino, &inode, argv[0]))
1466                 return;
1467
1468         ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1469                               mark_blocks_proc, NULL);
1470
1471         ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1472
1473         if (argc > 2)
1474                 make_link(argv[1], argv[2]);
1475 }
1476
1477 static void unlink_file_by_name(char *filename)
1478 {
1479         int             retval;
1480         ext2_ino_t      dir;
1481         char            *base_name;
1482
1483         base_name = strrchr(filename, '/');
1484         if (base_name) {
1485                 *base_name++ = '\0';
1486                 dir = string_to_inode(filename);
1487                 if (!dir)
1488                         return;
1489         } else {
1490                 dir = cwd;
1491                 base_name = filename;
1492         }
1493         retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1494         if (retval)
1495                 com_err("unlink_file_by_name", retval, 0);
1496         return;
1497 }
1498
1499 void do_unlink(int argc, char *argv[])
1500 {
1501         if (common_args_process(argc, argv, 2, 2, "link",
1502                                 "<pathname>", CHECK_FS_RW))
1503                 return;
1504
1505         unlink_file_by_name(argv[1]);
1506 }
1507 #endif /* READ_ONLY */
1508
1509 void do_find_free_block(int argc, char *argv[])
1510 {
1511         blk64_t free_blk, goal, first_free = 0;
1512         int             count;
1513         errcode_t       retval;
1514         char            *tmp;
1515
1516         if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1517                 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1518                 return;
1519         }
1520         if (check_fs_open(argv[0]))
1521                 return;
1522
1523         if (argc > 1) {
1524                 count = strtol(argv[1],&tmp,0);
1525                 if (*tmp) {
1526                         com_err(argv[0], 0, "Bad count - %s", argv[1]);
1527                         return;
1528                 }
1529         } else
1530                 count = 1;
1531
1532         if (argc > 2) {
1533                 goal = strtol(argv[2], &tmp, 0);
1534                 if (*tmp) {
1535                         com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1536                         return;
1537                 }
1538         }
1539         else
1540                 goal = current_fs->super->s_first_data_block;
1541
1542         printf("Free blocks found: ");
1543         free_blk = goal - 1;
1544         while (count-- > 0) {
1545                 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
1546                                            &free_blk);
1547                 if (first_free) {
1548                         if (first_free == free_blk)
1549                                 break;
1550                 } else
1551                         first_free = free_blk;
1552                 if (retval) {
1553                         com_err("ext2fs_new_block", retval, 0);
1554                         return;
1555                 } else
1556                         printf("%llu ", free_blk);
1557         }
1558         printf("\n");
1559 }
1560
1561 void do_find_free_inode(int argc, char *argv[])
1562 {
1563         ext2_ino_t      free_inode, dir;
1564         int             mode;
1565         int             retval;
1566         char            *tmp;
1567
1568         if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1569                 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
1570                 return;
1571         }
1572         if (check_fs_open(argv[0]))
1573                 return;
1574
1575         if (argc > 1) {
1576                 dir = strtol(argv[1], &tmp, 0);
1577                 if (*tmp) {
1578                         com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1579                         return;
1580                 }
1581         }
1582         else
1583                 dir = root;
1584         if (argc > 2) {
1585                 mode = strtol(argv[2], &tmp, 0);
1586                 if (*tmp) {
1587                         com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1588                         return;
1589                 }
1590         } else
1591                 mode = 010755;
1592
1593         retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1594         if (retval)
1595                 com_err("ext2fs_new_inode", retval, 0);
1596         else
1597                 printf("Free inode found: %u\n", free_inode);
1598 }
1599
1600 #ifndef READ_ONLY
1601 void do_write(int argc, char *argv[])
1602 {
1603         errcode_t       retval;
1604
1605         if (common_args_process(argc, argv, 3, 3, "write",
1606                                 "<native file> <new file>", CHECK_FS_RW))
1607                 return;
1608
1609         if ((retval = do_write_internal(cwd, argv[1], argv[2])))
1610                 com_err(argv[0], retval, 0);
1611 }
1612
1613 void do_mknod(int argc, char *argv[])
1614 {
1615         unsigned long   mode, major, minor;
1616         errcode_t       retval;
1617         int             filetype, nr;
1618         struct stat     st;
1619
1620         if (check_fs_open(argv[0]))
1621                 return;
1622         if (argc < 3 || argv[2][1]) {
1623         usage:
1624                 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1625                 return;
1626         }
1627
1628         mode = minor = major = 0;
1629         switch (argv[2][0]) {
1630                 case 'p':
1631                         st.st_mode = S_IFIFO;
1632                         nr = 3;
1633                         break;
1634                 case 'c':
1635                         st.st_mode = S_IFCHR;
1636                         nr = 5;
1637                         break;
1638                 case 'b':
1639                         st.st_mode = S_IFBLK;
1640                         nr = 5;
1641                         break;
1642                 default:
1643                         nr = 0;
1644         }
1645
1646         if (nr == 5) {
1647                 major = strtoul(argv[3], argv+3, 0);
1648                 minor = strtoul(argv[4], argv+4, 0);
1649                 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1650                         nr = 0;
1651         }
1652
1653         if (argc != nr)
1654                 goto usage;
1655
1656         st.st_rdev = makedev(major, minor);
1657         if ((retval = do_mknod_internal(cwd, argv[1], &st)))
1658                 com_err(argv[0], retval, 0);
1659 }
1660
1661 void do_mkdir(int argc, char *argv[])
1662 {
1663         errcode_t retval;
1664
1665         if (common_args_process(argc, argv, 2, 2, "mkdir",
1666                                 "<filename>", CHECK_FS_RW))
1667                 return;
1668
1669         if ((retval = do_mkdir_internal(cwd, argv[1], NULL)))
1670                 com_err(argv[0], retval, 0);
1671
1672 }
1673
1674 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1675                                e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1676                                blk64_t ref_block EXT2FS_ATTR((unused)),
1677                                int ref_offset EXT2FS_ATTR((unused)),
1678                                void *private EXT2FS_ATTR((unused)))
1679 {
1680         blk64_t block;
1681
1682         block = *blocknr;
1683         ext2fs_block_alloc_stats2(fs, block, -1);
1684         return 0;
1685 }
1686
1687 static void kill_file_by_inode(ext2_ino_t inode)
1688 {
1689         struct ext2_inode inode_buf;
1690
1691         if (debugfs_read_inode(inode, &inode_buf, 0))
1692                 return;
1693         inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1694         if (debugfs_write_inode(inode, &inode_buf, 0))
1695                 return;
1696         if (ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf)) {
1697                 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY,
1698                                       NULL, release_blocks_proc, NULL);
1699         }
1700         printf("\n");
1701         ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1702                                   LINUX_S_ISDIR(inode_buf.i_mode));
1703 }
1704
1705
1706 void do_kill_file(int argc, char *argv[])
1707 {
1708         ext2_ino_t inode_num;
1709
1710         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1711                 return;
1712
1713         kill_file_by_inode(inode_num);
1714 }
1715
1716 void do_rm(int argc, char *argv[])
1717 {
1718         int retval;
1719         ext2_ino_t inode_num;
1720         struct ext2_inode inode;
1721
1722         if (common_args_process(argc, argv, 2, 2, "rm",
1723                                 "<filename>", CHECK_FS_RW))
1724                 return;
1725
1726         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1727         if (retval) {
1728                 com_err(argv[0], retval, "while trying to resolve filename");
1729                 return;
1730         }
1731
1732         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1733                 return;
1734
1735         if (LINUX_S_ISDIR(inode.i_mode)) {
1736                 com_err(argv[0], 0, "file is a directory");
1737                 return;
1738         }
1739
1740         --inode.i_links_count;
1741         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1742                 return;
1743
1744         unlink_file_by_name(argv[1]);
1745         if (inode.i_links_count == 0)
1746                 kill_file_by_inode(inode_num);
1747 }
1748
1749 struct rd_struct {
1750         ext2_ino_t      parent;
1751         int             empty;
1752 };
1753
1754 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1755                       int       entry EXT2FS_ATTR((unused)),
1756                       struct ext2_dir_entry *dirent,
1757                       int       offset EXT2FS_ATTR((unused)),
1758                       int       blocksize EXT2FS_ATTR((unused)),
1759                       char      *buf EXT2FS_ATTR((unused)),
1760                       void      *private)
1761 {
1762         struct rd_struct *rds = (struct rd_struct *) private;
1763
1764         if (dirent->inode == 0)
1765                 return 0;
1766         if ((ext2fs_dirent_name_len(dirent) == 1) && (dirent->name[0] == '.'))
1767                 return 0;
1768         if ((ext2fs_dirent_name_len(dirent) == 2) && (dirent->name[0] == '.') &&
1769             (dirent->name[1] == '.')) {
1770                 rds->parent = dirent->inode;
1771                 return 0;
1772         }
1773         rds->empty = 0;
1774         return 0;
1775 }
1776
1777 void do_rmdir(int argc, char *argv[])
1778 {
1779         int retval;
1780         ext2_ino_t inode_num;
1781         struct ext2_inode inode;
1782         struct rd_struct rds;
1783
1784         if (common_args_process(argc, argv, 2, 2, "rmdir",
1785                                 "<filename>", CHECK_FS_RW))
1786                 return;
1787
1788         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1789         if (retval) {
1790                 com_err(argv[0], retval, "while trying to resolve filename");
1791                 return;
1792         }
1793
1794         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1795                 return;
1796
1797         if (!LINUX_S_ISDIR(inode.i_mode)) {
1798                 com_err(argv[0], 0, "file is not a directory");
1799                 return;
1800         }
1801
1802         rds.parent = 0;
1803         rds.empty = 1;
1804
1805         retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1806                                     0, rmdir_proc, &rds);
1807         if (retval) {
1808                 com_err(argv[0], retval, "while iterating over directory");
1809                 return;
1810         }
1811         if (rds.empty == 0) {
1812                 com_err(argv[0], 0, "directory not empty");
1813                 return;
1814         }
1815
1816         inode.i_links_count = 0;
1817         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1818                 return;
1819
1820         unlink_file_by_name(argv[1]);
1821         kill_file_by_inode(inode_num);
1822
1823         if (rds.parent) {
1824                 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
1825                         return;
1826                 if (inode.i_links_count > 1)
1827                         inode.i_links_count--;
1828                 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
1829                         return;
1830         }
1831 }
1832 #endif /* READ_ONLY */
1833
1834 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
1835                             char *argv[] EXT2FS_ATTR((unused)))
1836 {
1837         if (current_fs)
1838                 printf("Open mode: read-%s\n",
1839                        current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
1840         printf("Filesystem in use: %s\n",
1841                current_fs ? current_fs->device_name : "--none--");
1842 }
1843
1844 #ifndef READ_ONLY
1845 void do_expand_dir(int argc, char *argv[])
1846 {
1847         ext2_ino_t inode;
1848         int retval;
1849
1850         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1851                 return;
1852
1853         retval = ext2fs_expand_dir(current_fs, inode);
1854         if (retval)
1855                 com_err("ext2fs_expand_dir", retval, 0);
1856         return;
1857 }
1858
1859 void do_features(int argc, char *argv[])
1860 {
1861         int     i;
1862
1863         if (check_fs_open(argv[0]))
1864                 return;
1865
1866         if ((argc != 1) && check_fs_read_write(argv[0]))
1867                 return;
1868         for (i=1; i < argc; i++) {
1869                 if (e2p_edit_feature(argv[i],
1870                                      &current_fs->super->s_feature_compat, 0))
1871                         com_err(argv[0], 0, "Unknown feature: %s\n",
1872                                 argv[i]);
1873                 else
1874                         ext2fs_mark_super_dirty(current_fs);
1875         }
1876         print_features(current_fs->super, stdout);
1877 }
1878 #endif /* READ_ONLY */
1879
1880 void do_bmap(int argc, char *argv[])
1881 {
1882         ext2_ino_t      ino;
1883         blk64_t         blk, pblk;
1884         int             err;
1885         errcode_t       errcode;
1886
1887         if (common_args_process(argc, argv, 3, 3, argv[0],
1888                                 "<file> logical_blk", 0))
1889                 return;
1890
1891         ino = string_to_inode(argv[1]);
1892         if (!ino)
1893                 return;
1894         err = strtoblk(argv[0], argv[2], "logical block", &blk);
1895         if (err)
1896                 return;
1897
1898         errcode = ext2fs_bmap2(current_fs, ino, 0, 0, 0, blk, 0, &pblk);
1899         if (errcode) {
1900                 com_err(argv[0], errcode,
1901                         "while mapping logical block %llu\n", blk);
1902                 return;
1903         }
1904         printf("%llu\n", pblk);
1905 }
1906
1907 void do_imap(int argc, char *argv[])
1908 {
1909         ext2_ino_t      ino;
1910         unsigned long   group, block, block_nr, offset;
1911
1912         if (common_args_process(argc, argv, 2, 2, argv[0],
1913                                 "<file>", 0))
1914                 return;
1915         ino = string_to_inode(argv[1]);
1916         if (!ino)
1917                 return;
1918
1919         group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
1920         offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
1921                 EXT2_INODE_SIZE(current_fs->super);
1922         block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
1923         if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
1924                 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
1925                         group);
1926                 return;
1927         }
1928         block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
1929                 block;
1930         offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
1931
1932         printf("Inode %d is part of block group %lu\n"
1933                "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
1934                block_nr, offset);
1935
1936 }
1937
1938 #ifndef READ_ONLY
1939 void do_set_current_time(int argc, char *argv[])
1940 {
1941         time_t now;
1942
1943         if (common_args_process(argc, argv, 2, 2, argv[0],
1944                                 "<time>", 0))
1945                 return;
1946
1947         now = string_to_time(argv[1]);
1948         if (now == ((time_t) -1)) {
1949                 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
1950                         argv[1]);
1951                 return;
1952
1953         } else {
1954                 printf("Setting current time to %s\n", time_to_string(now));
1955                 current_fs->now = now;
1956         }
1957 }
1958 #endif /* READ_ONLY */
1959
1960 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
1961 {
1962         int compat, bit, ret;
1963         unsigned int feature_mask;
1964
1965         if (name) {
1966                 if (feature_type == E2P_FS_FEATURE)
1967                         ret = e2p_string2feature(name, &compat, &feature_mask);
1968                 else
1969                         ret = e2p_jrnl_string2feature(name, &compat,
1970                                                       &feature_mask);
1971                 if (ret)
1972                         return ret;
1973
1974                 if (!(supp[compat] & feature_mask))
1975                         return 1;
1976         } else {
1977                 for (compat = 0; compat < 3; compat++) {
1978                         for (bit = 0, feature_mask = 1; bit < 32;
1979                              bit++, feature_mask <<= 1) {
1980                                 if (supp[compat] & feature_mask) {
1981                                         if (feature_type == E2P_FS_FEATURE)
1982                                                 fprintf(stdout, " %s",
1983                                                 e2p_feature2string(compat,
1984                                                 feature_mask));
1985                                         else
1986                                                 fprintf(stdout, " %s",
1987                                                 e2p_jrnl_feature2string(compat,
1988                                                 feature_mask));
1989                                 }
1990                         }
1991                 }
1992                 fprintf(stdout, "\n");
1993         }
1994
1995         return 0;
1996 }
1997
1998 void do_supported_features(int argc, char *argv[])
1999 {
2000         int     ret;
2001         __u32   supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2002                             EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2003                             EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2004         __u32   jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES,
2005                                  JFS_KNOWN_INCOMPAT_FEATURES,
2006                                  JFS_KNOWN_ROCOMPAT_FEATURES };
2007
2008         if (argc > 1) {
2009                 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2010                 if (ret) {
2011                         ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2012                                                 argv[1]);
2013                 }
2014                 if (ret)
2015                         com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2016                 else
2017                         fprintf(stdout, "Supported feature: %s\n", argv[1]);
2018         } else {
2019                 fprintf(stdout, "Supported features:");
2020                 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2021                 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2022         }
2023 }
2024
2025 #ifndef READ_ONLY
2026 void do_punch(int argc, char *argv[])
2027 {
2028         ext2_ino_t      ino;
2029         blk64_t         start, end;
2030         int             err;
2031         errcode_t       errcode;
2032
2033         if (common_args_process(argc, argv, 3, 4, argv[0],
2034                                 "<file> start_blk [end_blk]",
2035                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
2036                 return;
2037
2038         ino = string_to_inode(argv[1]);
2039         if (!ino)
2040                 return;
2041         err = strtoblk(argv[0], argv[2], "logical block", &start);
2042         if (err)
2043                 return;
2044         if (argc == 4) {
2045                 err = strtoblk(argv[0], argv[3], "logical block", &end);
2046                 if (err)
2047                         return;
2048         } else
2049                 end = ~0;
2050
2051         errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
2052
2053         if (errcode) {
2054                 com_err(argv[0], errcode,
2055                         "while truncating inode %u from %llu to %llu\n", ino,
2056                         (unsigned long long) start, (unsigned long long) end);
2057                 return;
2058         }
2059 }
2060 #endif /* READ_ONLY */
2061
2062 void do_symlink(int argc, char *argv[])
2063 {
2064         errcode_t       retval;
2065
2066         if (common_args_process(argc, argv, 3, 3, "symlink",
2067                                 "<filename> <target>", CHECK_FS_RW))
2068                 return;
2069
2070         if ((retval = do_symlink_internal(cwd, argv[1], argv[2])))
2071                 com_err(argv[0], retval, 0);
2072
2073 }
2074
2075 void do_dump_mmp(int argc EXT2FS_ATTR((unused)), char *argv[])
2076 {
2077 #if CONFIG_MMP
2078         struct ext2_super_block *sb;
2079         struct mmp_struct *mmp_s;
2080         time_t t;
2081         errcode_t retval = 0;
2082
2083         if (check_fs_open(argv[0]))
2084                 return;
2085
2086         sb  = current_fs->super;
2087
2088         if (current_fs->mmp_buf == NULL) {
2089                 retval = ext2fs_get_mem(current_fs->blocksize,
2090                                         &current_fs->mmp_buf);
2091                 if (retval) {
2092                         com_err(argv[0], retval, "allocating MMP buffer.\n");
2093                         return;
2094                 }
2095         }
2096
2097         mmp_s = current_fs->mmp_buf;
2098
2099         retval = ext2fs_mmp_read(current_fs, current_fs->super->s_mmp_block,
2100                                  current_fs->mmp_buf);
2101         if (retval) {
2102                 com_err(argv[0], retval, "reading MMP block.\n");
2103                 return;
2104         }
2105
2106         t = mmp_s->mmp_time;
2107         fprintf(stdout, "block_number: %llu\n", current_fs->super->s_mmp_block);
2108         fprintf(stdout, "update_interval: %d\n",
2109                 current_fs->super->s_mmp_update_interval);
2110         fprintf(stdout, "check_interval: %d\n", mmp_s->mmp_check_interval);
2111         fprintf(stdout, "sequence: %08x\n", mmp_s->mmp_seq);
2112         fprintf(stdout, "time: %lld -- %s", mmp_s->mmp_time, ctime(&t));
2113         fprintf(stdout, "node_name: %s\n", mmp_s->mmp_nodename);
2114         fprintf(stdout, "device_name: %s\n", mmp_s->mmp_bdevname);
2115         fprintf(stdout, "magic: 0x%x\n", mmp_s->mmp_magic);
2116         fprintf(stdout, "checksum: 0x%08x\n", mmp_s->mmp_checksum);
2117 #else
2118         fprintf(stdout, "MMP is unsupported, please recompile with "
2119                         "--enable-mmp\n");
2120 #endif
2121 }
2122
2123 static int source_file(const char *cmd_file, int ss_idx)
2124 {
2125         FILE            *f;
2126         char            buf[BUFSIZ];
2127         char            *cp;
2128         int             exit_status = 0;
2129         int             retval;
2130
2131         if (strcmp(cmd_file, "-") == 0)
2132                 f = stdin;
2133         else {
2134                 f = fopen(cmd_file, "r");
2135                 if (!f) {
2136                         perror(cmd_file);
2137                         exit(1);
2138                 }
2139         }
2140         fflush(stdout);
2141         fflush(stderr);
2142         setbuf(stdout, NULL);
2143         setbuf(stderr, NULL);
2144         while (!feof(f)) {
2145                 if (fgets(buf, sizeof(buf), f) == NULL)
2146                         break;
2147                 cp = strchr(buf, '\n');
2148                 if (cp)
2149                         *cp = 0;
2150                 cp = strchr(buf, '\r');
2151                 if (cp)
2152                         *cp = 0;
2153                 printf("debugfs: %s\n", buf);
2154                 retval = ss_execute_line(ss_idx, buf);
2155                 if (retval) {
2156                         ss_perror(ss_idx, retval, buf);
2157                         exit_status++;
2158                 }
2159         }
2160         if (f != stdin)
2161                 fclose(f);
2162         return exit_status;
2163 }
2164
2165 int main(int argc, char **argv)
2166 {
2167         int             retval;
2168         const char      *usage =
2169                 "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] "
2170                 "[-R request] [-V] ["
2171 #ifndef READ_ONLY
2172                 "[-w] "
2173 #endif
2174                 "[-c] device]";
2175         int             c;
2176         int             open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
2177         char            *request = 0;
2178         int             exit_status = 0;
2179         char            *cmd_file = 0;
2180         blk64_t         superblock = 0;
2181         blk64_t         blocksize = 0;
2182         int             catastrophic = 0;
2183         char            *data_filename = 0;
2184 #ifdef READ_ONLY
2185         const char      *opt_string = "nicR:f:b:s:Vd:D";
2186 #else
2187         const char      *opt_string = "niwcR:f:b:s:Vd:D";
2188 #endif
2189
2190         if (debug_prog_name == 0)
2191 #ifdef READ_ONLY
2192                 debug_prog_name = "rdebugfs";
2193 #else
2194                 debug_prog_name = "debugfs";
2195 #endif
2196         add_error_table(&et_ext2_error_table);
2197         fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2198                  E2FSPROGS_VERSION, E2FSPROGS_DATE);
2199
2200         while ((c = getopt (argc, argv, opt_string)) != EOF) {
2201                 switch (c) {
2202                 case 'R':
2203                         request = optarg;
2204                         break;
2205                 case 'f':
2206                         cmd_file = optarg;
2207                         break;
2208                 case 'd':
2209                         data_filename = optarg;
2210                         break;
2211                 case 'i':
2212                         open_flags |= EXT2_FLAG_IMAGE_FILE;
2213                         break;
2214                 case 'n':
2215                         open_flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
2216                         break;
2217 #ifndef READ_ONLY
2218                 case 'w':
2219                         open_flags |= EXT2_FLAG_RW;
2220                         break;
2221 #endif
2222                 case 'D':
2223                         open_flags |= EXT2_FLAG_DIRECT_IO;
2224                         break;
2225                 case 'b':
2226                         blocksize = parse_ulong(optarg, argv[0],
2227                                                 "block size", 0);
2228                         break;
2229                 case 's':
2230                         retval = strtoblk(argv[0], optarg,
2231                                           "superblock block number",
2232                                           &superblock);
2233                         if (retval)
2234                                 return 1;
2235                         break;
2236                 case 'c':
2237                         catastrophic = 1;
2238                         break;
2239                 case 'V':
2240                         /* Print version number and exit */
2241                         fprintf(stderr, "\tUsing %s\n",
2242                                 error_message(EXT2_ET_BASE));
2243                         exit(0);
2244                 default:
2245                         com_err(argv[0], 0, usage, debug_prog_name);
2246                         return 1;
2247                 }
2248         }
2249         if (optind < argc)
2250                 open_filesystem(argv[optind], open_flags,
2251                                 superblock, blocksize, catastrophic,
2252                                 data_filename);
2253
2254         sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2255                                        &debug_cmds, &retval);
2256         if (retval) {
2257                 ss_perror(sci_idx, retval, "creating invocation");
2258                 exit(1);
2259         }
2260         ss_get_readline(sci_idx);
2261
2262         (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
2263         if (retval) {
2264                 ss_perror(sci_idx, retval, "adding standard requests");
2265                 exit (1);
2266         }
2267         if (extra_cmds)
2268                 ss_add_request_table (sci_idx, extra_cmds, 1, &retval);
2269         if (retval) {
2270                 ss_perror(sci_idx, retval, "adding extra requests");
2271                 exit (1);
2272         }
2273         if (request) {
2274                 retval = 0;
2275                 retval = ss_execute_line(sci_idx, request);
2276                 if (retval) {
2277                         ss_perror(sci_idx, retval, request);
2278                         exit_status++;
2279                 }
2280         } else if (cmd_file) {
2281                 exit_status = source_file(cmd_file, sci_idx);
2282         } else {
2283                 ss_listen(sci_idx);
2284         }
2285
2286         ss_delete_invocation(sci_idx);
2287
2288         if (current_fs)
2289                 close_filesystem();
2290
2291         remove_error_table(&et_ext2_error_table);
2292         return exit_status;
2293 }