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_filsys    current_fs;
  47 ext2_ino_t     root, cwd;
  48
  49 static void open_filesystem(char *device, int open_flags, blk64_t superblock,
  50                             blk64_t blocksize, int catastrophic,
  51                             char *data_filename)
  52 {
  53         int     retval;
  54         io_channel data_io = 0;
  55
  56         if (superblock != 0 && blocksize == 0) {
  57                 com_err(device, 0, "if you specify the superblock, you must also specify the block size");
  58                 current_fs = NULL;
  59                 return;
  60         }
  61
  62         if (data_filename) {
  63                 if ((open_flags & EXT2_FLAG_IMAGE_FILE) == 0) {
  64                         com_err(device, 0,
  65                                 "The -d option is only valid when reading an e2image file");
  66                         current_fs = NULL;
  67                         return;
  68                 }
  69                 retval = unix_io_manager->open(data_filename, 0, &data_io);
  70                 if (retval) {
  71                         com_err(data_filename, 0, "while opening data source");
  72                         current_fs = NULL;
  73                         return;
  74                 }
  75         }
  76
  77         if (catastrophic && (open_flags & EXT2_FLAG_RW)) {
  78                 com_err(device, 0,
  79                         "opening read-only because of catastrophic mode");
  80                 open_flags &= ~EXT2_FLAG_RW;
  81         }
  82         if (catastrophic)
  83                 open_flags |= EXT2_FLAG_SKIP_MMP;
  84
  85         retval = ext2fs_open(device, open_flags, superblock, blocksize,
  86                              unix_io_manager, &current_fs);
  87         if (retval) {
  88                 com_err(device, retval, "while opening filesystem");
  89                 current_fs = NULL;
  90                 return;
  91         }
  92         current_fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
  93
  94         if (catastrophic)
  95                 com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps");
  96         else {
  97                 retval = ext2fs_read_inode_bitmap(current_fs);
  98                 if (retval) {
  99                         com_err(device, retval, "while reading inode bitmap");
 100                         goto errout;
 101                 }
 102                 retval = ext2fs_read_block_bitmap(current_fs);
 103                 if (retval) {
 104                         com_err(device, retval, "while reading block bitmap");
 105                         goto errout;
 106                 }
 107         }
 108
 109         if (data_io) {
 110                 retval = ext2fs_set_data_io(current_fs, data_io);
 111                 if (retval) {
 112                         com_err(device, retval,
 113                                 "while setting data source");
 114                         goto errout;
 115                 }
 116         }
 117
 118         root = cwd = EXT2_ROOT_INO;
 119         return;
 120
 121 errout:
 122         retval = ext2fs_close(current_fs);
 123         if (retval)
 124                 com_err(device, retval, "while trying to close filesystem");
 125         current_fs = NULL;
 126 }
 127
 128 void do_open_filesys(int argc, char **argv)
 129 {
 130         int     c, err;
 131         int     catastrophic = 0;
 132         blk64_t superblock = 0;
 133         blk64_t blocksize = 0;
 134         int     open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
 135         char    *data_filename = 0;
 136
 137         reset_getopt();
 138         while ((c = getopt (argc, argv, "iwfecb:s:d:D")) != EOF) {
 139                 switch (c) {
 140                 case 'i':
 141                         open_flags |= EXT2_FLAG_IMAGE_FILE;
 142                         break;
 143                 case 'w':
 144 #ifdef READ_ONLY
 145                         goto print_usage;
 146 #else
 147                         open_flags |= EXT2_FLAG_RW;
 148 #endif /* READ_ONLY */
 149                         break;
 150                 case 'f':
 151                         open_flags |= EXT2_FLAG_FORCE;
 152                         break;
 153                 case 'e':
 154                         open_flags |= EXT2_FLAG_EXCLUSIVE;
 155                         break;
 156                 case 'c':
 157                         catastrophic = 1;
 158                         break;
 159                 case 'd':
 160                         data_filename = optarg;
 161                         break;
 162                 case 'D':
 163                         open_flags |= EXT2_FLAG_DIRECT_IO;
 164                         break;
 165                 case 'b':
 166                         blocksize = parse_ulong(optarg, argv[0],
 167                                                 "block size", &err);
 168                         if (err)
 169                                 return;
 170                         break;
 171                 case 's':
 172                         err = strtoblk(argv[0], optarg,
 173                                        "superblock block number", &superblock);
 174                         if (err)
 175                                 return;
 176                         break;
 177                 default:
 178                         goto print_usage;
 179                 }
 180         }
 181         if (optind != argc-1) {
 182                 goto print_usage;
 183         }
 184         if (check_fs_not_open(argv[0]))
 185                 return;
 186         open_filesystem(argv[optind], open_flags,
 187                         superblock, blocksize, catastrophic,
 188                         data_filename);
 189         return;
 190
 191 print_usage:
 192         fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] "
 193                 "[-d image_filename] [-c] [-i] [-f] [-e] [-D] "
 194 #ifndef READ_ONLY
 195                 "[-w] "
 196 #endif
 197                 "<device>\n", argv[0]);
 198 }
 199
 200 void do_lcd(int argc, char **argv)
 201 {
 202         if (argc != 2) {
 203                 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>");
 204                 return;
 205         }
 206
 207         if (chdir(argv[1]) == -1) {
 208                 com_err(argv[0], errno,
 209                         "while trying to change native directory to %s",
 210                         argv[1]);
 211                 return;
 212         }
 213 }
 214
 215 static void close_filesystem(NOARGS)
 216 {
 217         int     retval;
 218
 219         if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
 220                 retval = ext2fs_write_inode_bitmap(current_fs);
 221                 if (retval)
 222                         com_err("ext2fs_write_inode_bitmap", retval, 0);
 223         }
 224         if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
 225                 retval = ext2fs_write_block_bitmap(current_fs);
 226                 if (retval)
 227                         com_err("ext2fs_write_block_bitmap", retval, 0);
 228         }
 229         retval = ext2fs_close(current_fs);
 230         if (retval)
 231                 com_err("ext2fs_close", retval, 0);
 232         current_fs = NULL;
 233         return;
 234 }
 235
 236 void do_close_filesys(int argc, char **argv)
 237 {
 238         int     c;
 239
 240         if (check_fs_open(argv[0]))
 241                 return;
 242
 243         reset_getopt();
 244         while ((c = getopt (argc, argv, "a")) != EOF) {
 245                 switch (c) {
 246                 case 'a':
 247                         current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
 248                         break;
 249                 default:
 250                         goto print_usage;
 251                 }
 252         }
 253
 254         if (argc > optind) {
 255         print_usage:
 256                 com_err(0, 0, "Usage: close_filesys [-a]");
 257                 return;
 258         }
 259
 260         close_filesystem();
 261 }
 262
 263 #ifndef READ_ONLY
 264 void do_init_filesys(int argc, char **argv)
 265 {
 266         struct ext2_super_block param;
 267         errcode_t       retval;
 268         int             err;
 269         blk64_t         blocks;
 270
 271         if (common_args_process(argc, argv, 3, 3, "initialize",
 272                                 "<device> <blocks>", CHECK_FS_NOTOPEN))
 273                 return;
 274
 275         memset(&param, 0, sizeof(struct ext2_super_block));
 276         err = strtoblk(argv[0], argv[2], "blocks count", &blocks);
 277         if (err)
 278                 return;
 279         ext2fs_blocks_count_set(&param, blocks);
 280         retval = ext2fs_initialize(argv[1], 0, &param,
 281                                    unix_io_manager, &current_fs);
 282         if (retval) {
 283                 com_err(argv[1], retval, "while initializing filesystem");
 284                 current_fs = NULL;
 285                 return;
 286         }
 287         root = cwd = EXT2_ROOT_INO;
 288         return;
 289 }
 290
 291 static void print_features(struct ext2_super_block * s, FILE *f)
 292 {
 293         int     i, j, printed=0;
 294         __u32   *mask = &s->s_feature_compat, m;
 295
 296         fputs("Filesystem features:", f);
 297         for (i=0; i <3; i++,mask++) {
 298                 for (j=0,m=1; j < 32; j++, m<<=1) {
 299                         if (*mask & m) {
 300                                 fprintf(f, " %s", e2p_feature2string(i, m));
 301                                 printed++;
 302                         }
 303                 }
 304         }
 305         if (printed == 0)
 306                 fputs("(none)", f);
 307         fputs("\n", f);
 308 }
 309 #endif /* READ_ONLY */
 310
 311 static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask,
 312                           const char *str, int *first, FILE *f)
 313 {
 314         if (ext2fs_bg_flags_test(fs, group, mask)) {
 315                 if (*first) {
 316                         fputs("           [", f);
 317                         *first = 0;
 318                 } else
 319                         fputs(", ", f);
 320                 fputs(str, f);
 321         }
 322 }
 323
 324 void do_show_super_stats(int argc, char *argv[])
 325 {
 326         const char *units ="block";
 327         dgrp_t  i;
 328         FILE    *out;
 329         int     c, header_only = 0;
 330         int     numdirs = 0, first, gdt_csum;
 331
 332         reset_getopt();
 333         while ((c = getopt (argc, argv, "h")) != EOF) {
 334                 switch (c) {
 335                 case 'h':
 336                         header_only++;
 337                         break;
 338                 default:
 339                         goto print_usage;
 340                 }
 341         }
 342         if (optind != argc) {
 343                 goto print_usage;
 344         }
 345         if (check_fs_open(argv[0]))
 346                 return;
 347         out = open_pager();
 348
 349         if (EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super,
 350                                        EXT4_FEATURE_RO_COMPAT_BIGALLOC))
 351                 units = "cluster";
 352
 353         list_super2(current_fs->super, out);
 354         for (i=0; i < current_fs->group_desc_count; i++)
 355                 numdirs += ext2fs_bg_used_dirs_count(current_fs, i);
 356         fprintf(out, "Directories:              %d\n", numdirs);
 357
 358         if (header_only) {
 359                 close_pager(out);
 360                 return;
 361         }
 362
 363         gdt_csum = ext2fs_has_group_desc_csum(current_fs);
 364         for (i = 0; i < current_fs->group_desc_count; i++) {
 365                 fprintf(out, " Group %2d: block bitmap at %llu, "
 366                         "inode bitmap at %llu, "
 367                         "inode table at %llu\n"
 368                         "           %u free %s%s, "
 369                         "%u free %s, "
 370                         "%u used %s%s",
 371                         i, ext2fs_block_bitmap_loc(current_fs, i),
 372                         ext2fs_inode_bitmap_loc(current_fs, i),
 373                         ext2fs_inode_table_loc(current_fs, i),
 374                         ext2fs_bg_free_blocks_count(current_fs, i), units,
 375                         ext2fs_bg_free_blocks_count(current_fs, i) != 1 ?
 376                         "s" : "",
 377                         ext2fs_bg_free_inodes_count(current_fs, i),
 378                         ext2fs_bg_free_inodes_count(current_fs, i) != 1 ?
 379                         "inodes" : "inode",
 380                         ext2fs_bg_used_dirs_count(current_fs, i),
 381                         ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories"
 382                                 : "directory", gdt_csum ? ", " : "\n");
 383                 if (gdt_csum)
 384                         fprintf(out, "%u unused %s\n",
 385                                 ext2fs_bg_itable_unused(current_fs, i),
 386                                 ext2fs_bg_itable_unused(current_fs, i) != 1 ?
 387                                 "inodes" : "inode");
 388                 first = 1;
 389                 print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init",
 390                               &first, out);
 391                 print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init",
 392                               &first, out);
 393                 if (gdt_csum) {
 394                         fprintf(out, "%sChecksum 0x%04x",
 395                                 first ? "           [":", ", ext2fs_bg_checksum(current_fs, i));
 396                         first = 0;
 397                 }
 398                 if (!first)
 399                         fputs("]\n", out);
 400         }
 401         close_pager(out);
 402         return;
 403 print_usage:
 404         fprintf(stderr, "%s: Usage: show_super [-h]\n", argv[0]);
 405 }
 406
 407 #ifndef READ_ONLY
 408 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
 409                       char **argv EXT2FS_ATTR((unused)))
 410 {
 411         if (check_fs_open(argv[0]))
 412                 return;
 413         if (check_fs_read_write(argv[0]))
 414                 return;
 415
 416         if (argv[1] && !strcmp(argv[1], "-clean"))
 417                 current_fs->super->s_state |= EXT2_VALID_FS;
 418         else
 419                 current_fs->super->s_state &= ~EXT2_VALID_FS;
 420         ext2fs_mark_super_dirty(current_fs);
 421 }
 422 #endif /* READ_ONLY */
 423
 424 struct list_blocks_struct {
 425         FILE            *f;
 426         e2_blkcnt_t     total;
 427         blk64_t         first_block, last_block;
 428         e2_blkcnt_t     first_bcnt, last_bcnt;
 429         e2_blkcnt_t     first;
 430 };
 431
 432 static void finish_range(struct list_blocks_struct *lb)
 433 {
 434         if (lb->first_block == 0)
 435                 return;
 436         if (lb->first)
 437                 lb->first = 0;
 438         else
 439                 fprintf(lb->f, ", ");
 440         if (lb->first_block == lb->last_block)
 441                 fprintf(lb->f, "(%lld):%llu",
 442                         (long long)lb->first_bcnt, lb->first_block);
 443         else
 444                 fprintf(lb->f, "(%lld-%lld):%llu-%llu",
 445                         (long long)lb->first_bcnt, (long long)lb->last_bcnt,
 446                         lb->first_block, lb->last_block);
 447         lb->first_block = 0;
 448 }
 449
 450 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
 451                             blk64_t *blocknr, e2_blkcnt_t blockcnt,
 452                             blk64_t ref_block EXT2FS_ATTR((unused)),
 453                             int ref_offset EXT2FS_ATTR((unused)),
 454                             void *private)
 455 {
 456         struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
 457
 458         lb->total++;
 459         if (blockcnt >= 0) {
 460                 /*
 461                  * See if we can add on to the existing range (if it exists)
 462                  */
 463                 if (lb->first_block &&
 464                     (lb->last_block+1 == *blocknr) &&
 465                     (lb->last_bcnt+1 == blockcnt)) {
 466                         lb->last_block = *blocknr;
 467                         lb->last_bcnt = blockcnt;
 468                         return 0;
 469                 }
 470                 /*
 471                  * Start a new range.
 472                  */
 473                 finish_range(lb);
 474                 lb->first_block = lb->last_block = *blocknr;
 475                 lb->first_bcnt = lb->last_bcnt = blockcnt;
 476                 return 0;
 477         }
 478         /*
 479          * Not a normal block.  Always force a new range.
 480          */
 481         finish_range(lb);
 482         if (lb->first)
 483                 lb->first = 0;
 484         else
 485                 fprintf(lb->f, ", ");
 486         if (blockcnt == -1)
 487                 fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr);
 488         else if (blockcnt == -2)
 489                 fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr);
 490         else if (blockcnt == -3)
 491                 fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr);
 492         return 0;
 493 }
 494
 495 static void dump_xattr_string(FILE *out, const char *str, int len)
 496 {
 497         int printable = 0;
 498         int i;
 499
 500         /* check: is string "printable enough?" */
 501         for (i = 0; i < len; i++)
 502                 if (isprint(str[i]))
 503                         printable++;
 504
 505         if (printable <= len*7/8)
 506                 printable = 0;
 507
 508         for (i = 0; i < len; i++)
 509                 if (printable)
 510                         fprintf(out, isprint(str[i]) ? "%c" : "\\%03o",
 511                                 (unsigned char)str[i]);
 512                 else
 513                         fprintf(out, "%02x ", (unsigned char)str[i]);
 514 }
 515
 516 static void internal_dump_inode_extra(FILE *out,
 517                                       const char *prefix EXT2FS_ATTR((unused)),
 518                                       ext2_ino_t inode_num EXT2FS_ATTR((unused)),
 519                                       struct ext2_inode_large *inode)
 520 {
 521         struct ext2_ext_attr_entry *entry;
 522         __u32 *magic;
 523         char *start, *end;
 524         unsigned int storage_size;
 525
 526         fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
 527         if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
 528                         EXT2_GOOD_OLD_INODE_SIZE) {
 529                 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
 530                                 inode->i_extra_isize);
 531                 return;
 532         }
 533 }
 534
 535 /* Dump extended attributes */
 536 static int dump_attr(char *name, char *value, size_t value_len, void *data)
 537 {
 538         FILE *out = data;
 539
 540         fprintf(out, "  ");
 541         dump_xattr_string(out, name, strlen(name));
 542         fprintf(out, " = \"");
 543         dump_xattr_string(out, value, value_len);
 544         fprintf(out, "\" (%zu)\n", value_len);
 545
 546         return 0;
 547 }
 548
 549 static void dump_inode_attributes(FILE *out, ext2_ino_t ino)
 550 {
 551         struct ext2_xattr_handle *h;
 552         size_t sz;
 553         errcode_t err;
 554
 555         err = ext2fs_xattrs_open(current_fs, ino, &h);
 556         if (err)
 557                 return;
 558
 559         err = ext2fs_xattrs_read(h);
 560         if (err)
 561                 goto out;
 562
 563         err = ext2fs_xattrs_count(h, &sz);
 564         if (err || sz == 0)
 565                 goto out;
 566
 567         fprintf(out, "Extended attributes:\n");
 568         err = ext2fs_xattrs_iterate(h, dump_attr, out);
 569         if (err)
 570                 goto out;
 571
 572 out:
 573         err = ext2fs_xattrs_close(&h);
 574 }
 575
 576 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
 577 {
 578         struct list_blocks_struct lb;
 579
 580         fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
 581         lb.total = 0;
 582         lb.first_block = 0;
 583         lb.f = f;
 584         lb.first = 1;
 585         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
 586                               list_blocks_proc, (void *)&lb);
 587         finish_range(&lb);
 588         if (lb.total)
 589                 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
 590         fprintf(f,"\n");
 591 }
 592
 593 static int int_log10(unsigned long long arg)
 594 {
 595         int     l = 0;
 596
 597         arg = arg / 10;
 598         while (arg) {
 599                 l++;
 600                 arg = arg / 10;
 601         }
 602         return l;
 603 }
 604
 605 #define DUMP_LEAF_EXTENTS       0x01
 606 #define DUMP_NODE_EXTENTS       0x02
 607 #define DUMP_EXTENT_TABLE       0x04
 608
 609 static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino,
 610                          int flags, int logical_width, int physical_width)
 611 {
 612         ext2_extent_handle_t    handle;
 613         struct ext2fs_extent    extent;
 614         struct ext2_extent_info info;
 615         int                     op = EXT2_EXTENT_ROOT;
 616         unsigned int            printed = 0;
 617         errcode_t               errcode;
 618
 619         errcode = ext2fs_extent_open(current_fs, ino, &handle);
 620         if (errcode)
 621                 return;
 622
 623         if (flags & DUMP_EXTENT_TABLE)
 624                 fprintf(f, "Level Entries %*s %*s Length Flags\n",
 625                         (logical_width*2)+3, "Logical",
 626                         (physical_width*2)+3, "Physical");
 627         else
 628                 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix);
 629
 630         while (1) {
 631                 errcode = ext2fs_extent_get(handle, op, &extent);
 632
 633                 if (errcode)
 634                         break;
 635
 636                 op = EXT2_EXTENT_NEXT;
 637
 638                 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 639                         continue;
 640
 641                 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
 642                         if ((flags & DUMP_LEAF_EXTENTS) == 0)
 643                                 continue;
 644                 } else {
 645                         if ((flags & DUMP_NODE_EXTENTS) == 0)
 646                                 continue;
 647                 }
 648
 649                 errcode = ext2fs_extent_get_info(handle, &info);
 650                 if (errcode)
 651                         continue;
 652
 653                 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) {
 654                         if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 655                                 continue;
 656
 657                         if (flags & DUMP_EXTENT_TABLE) {
 658                                 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 659                                         "%*llu%*s %6u\n",
 660                                         info.curr_level, info.max_depth,
 661                                         info.curr_entry, info.num_entries,
 662                                         logical_width,
 663                                         extent.e_lblk,
 664                                         logical_width,
 665                                         extent.e_lblk + (extent.e_len - 1),
 666                                         physical_width,
 667                                         extent.e_pblk,
 668                                         physical_width+3, "", extent.e_len);
 669                                 continue;
 670                         }
 671
 672                         fprintf(f, "%s(ETB%d):%lld",
 673                                 printed ? ", " : "", info.curr_level,
 674                                 extent.e_pblk);
 675                         printed = 1;
 676                         continue;
 677                 }
 678
 679                 if (flags & DUMP_EXTENT_TABLE) {
 680                         fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 681                                 "%*llu - %*llu %6u %s\n",
 682                                 info.curr_level, info.max_depth,
 683                                 info.curr_entry, info.num_entries,
 684                                 logical_width,
 685                                 extent.e_lblk,
 686                                 logical_width,
 687                                 extent.e_lblk + (extent.e_len - 1),
 688                                 physical_width,
 689                                 extent.e_pblk,
 690                                 physical_width,
 691                                 extent.e_pblk + (extent.e_len - 1),
 692                                 extent.e_len,
 693                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 694                                         "Uninit" : "");
 695                         continue;
 696                 }
 697
 698                 if (extent.e_len == 0)
 699                         continue;
 700                 else if (extent.e_len == 1)
 701                         fprintf(f,
 702                                 "%s(%lld%s):%lld",
 703                                 printed ? ", " : "",
 704                                 extent.e_lblk,
 705                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 706                                 "[u]" : "",
 707                                 extent.e_pblk);
 708                 else
 709                         fprintf(f,
 710                                 "%s(%lld-%lld%s):%lld-%lld",
 711                                 printed ? ", " : "",
 712                                 extent.e_lblk,
 713                                 extent.e_lblk + (extent.e_len - 1),
 714                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 715                                         "[u]" : "",
 716                                 extent.e_pblk,
 717                                 extent.e_pblk + (extent.e_len - 1));
 718                 printed = 1;
 719         }
 720         if (printed)
 721                 fprintf(f, "\n");
 722 }
 723
 724 static void dump_inline_data(FILE *out, const char *prefix, ext2_ino_t inode_num)
 725 {
 726         errcode_t retval;
 727         size_t size;
 728
 729         retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
 730         if (!retval)
 731                 fprintf(out, "%sSize of inline data: %d", prefix, size);
 732 }
 733
 734 void internal_dump_inode(FILE *out, const char *prefix,
 735                          ext2_ino_t inode_num, struct ext2_inode *inode,
 736                          int do_dump_blocks)
 737 {
 738         const char *i_type;
 739         char frag, fsize;
 740         int os = current_fs->super->s_creator_os;
 741         struct ext2_inode_large *large_inode;
 742         int is_large_inode = 0;
 743
 744         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 745                 is_large_inode = 1;
 746         large_inode = (struct ext2_inode_large *) inode;
 747
 748         if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
 749         else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
 750         else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
 751         else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
 752         else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
 753         else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
 754         else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
 755         else i_type = "bad type";
 756         fprintf(out, "%sInode: %u   Type: %s    ", prefix, inode_num, i_type);
 757         fprintf(out, "%sMode:  %04o   Flags: 0x%x\n",
 758                 prefix, inode->i_mode & 0777, inode->i_flags);
 759         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 760                 fprintf(out, "%sGeneration: %u    Version: 0x%08x:%08x\n",
 761                         prefix, inode->i_generation, large_inode->i_version_hi,
 762                         inode->osd1.linux1.l_i_version);
 763         } else {
 764                 fprintf(out, "%sGeneration: %u    Version: 0x%08x\n", prefix,
 765                         inode->i_generation, inode->osd1.linux1.l_i_version);
 766         }
 767         fprintf(out, "%sUser: %5d   Group: %5d   Size: ",
 768                 prefix, inode_uid(*inode), inode_gid(*inode));
 769         if (LINUX_S_ISREG(inode->i_mode))
 770                 fprintf(out, "%llu\n", EXT2_I_SIZE(inode));
 771         else
 772                 fprintf(out, "%d\n", inode->i_size);
 773         if (os == EXT2_OS_HURD)
 774                 fprintf(out,
 775                         "%sFile ACL: %d    Directory ACL: %d Translator: %d\n",
 776                         prefix,
 777                         inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0,
 778                         inode->osd1.hurd1.h_i_translator);
 779         else
 780                 fprintf(out, "%sFile ACL: %llu    Directory ACL: %d\n",
 781                         prefix,
 782                         inode->i_file_acl | ((long long)
 783                                 (inode->osd2.linux2.l_i_file_acl_high) << 32),
 784                         LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0);
 785         if (os == EXT2_OS_LINUX)
 786                 fprintf(out, "%sLinks: %d   Blockcount: %llu\n",
 787                         prefix, inode->i_links_count,
 788                         (((unsigned long long)
 789                           inode->osd2.linux2.l_i_blocks_hi << 32)) +
 790                         inode->i_blocks);
 791         else
 792                 fprintf(out, "%sLinks: %d   Blockcount: %u\n",
 793                         prefix, inode->i_links_count, inode->i_blocks);
 794         switch (os) {
 795             case EXT2_OS_HURD:
 796                 frag = inode->osd2.hurd2.h_i_frag;
 797                 fsize = inode->osd2.hurd2.h_i_fsize;
 798                 break;
 799             default:
 800                 frag = fsize = 0;
 801         }
 802         fprintf(out, "%sFragment:  Address: %d    Number: %d    Size: %d\n",
 803                 prefix, inode->i_faddr, frag, fsize);
 804         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 805                 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
 806                         inode->i_ctime, large_inode->i_ctime_extra,
 807                         time_to_string(inode->i_ctime));
 808                 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
 809                         inode->i_atime, large_inode->i_atime_extra,
 810                         time_to_string(inode->i_atime));
 811                 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
 812                         inode->i_mtime, large_inode->i_mtime_extra,
 813                         time_to_string(inode->i_mtime));
 814                 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
 815                         large_inode->i_crtime, large_inode->i_crtime_extra,
 816                         time_to_string(large_inode->i_crtime));
 817         } else {
 818                 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
 819                         time_to_string(inode->i_ctime));
 820                 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
 821                         time_to_string(inode->i_atime));
 822                 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
 823                         time_to_string(inode->i_mtime));
 824         }
 825         if (inode->i_dtime)
 826           fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime,
 827                   time_to_string(inode->i_dtime));
 828         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 829                 internal_dump_inode_extra(out, prefix, inode_num,
 830                                           (struct ext2_inode_large *) inode);
 831         dump_inode_attributes(out, inode_num);
 832         if (current_fs->super->s_creator_os == EXT2_OS_LINUX &&
 833             current_fs->super->s_feature_ro_compat &
 834                 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) {
 835                 __u32 crc = inode->i_checksum_lo;
 836                 if (is_large_inode &&
 837                     large_inode->i_extra_isize >=
 838                                 (offsetof(struct ext2_inode_large,
 839                                           i_checksum_hi) -
 840                                  EXT2_GOOD_OLD_INODE_SIZE))
 841                         crc |= ((__u32)large_inode->i_checksum_hi) << 16;
 842                 fprintf(out, "Inode checksum: 0x%08x\n", crc);
 843         }
 844
 845         if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_inode_data_blocks(current_fs,inode) == 0)
 846                 fprintf(out, "%sFast_link_dest: %.*s\n", prefix,
 847                         (int) inode->i_size, (char *)inode->i_block);
 848         else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
 849                 int major, minor;
 850                 const char *devnote;
 851
 852                 if (inode->i_block[0]) {
 853                         major = (inode->i_block[0] >> 8) & 255;
 854                         minor = inode->i_block[0] & 255;
 855                         devnote = "";
 856                 } else {
 857                         major = (inode->i_block[1] & 0xfff00) >> 8;
 858                         minor = ((inode->i_block[1] & 0xff) |
 859                                  ((inode->i_block[1] >> 12) & 0xfff00));
 860                         devnote = "(New-style) ";
 861                 }
 862                 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
 863                         devnote, major, minor, major, minor);
 864         } else if (do_dump_blocks) {
 865                 if (inode->i_flags & EXT4_EXTENTS_FL)
 866                         dump_extents(out, prefix, inode_num,
 867                                      DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0);
 868                 else if (inode->i_flags & EXT4_INLINE_DATA_FL)
 869                         dump_inline_data(out, prefix, inode_num);
 870                 else
 871                         dump_blocks(out, prefix, inode_num);
 872         }
 873 }
 874
 875 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
 876 {
 877         FILE    *out;
 878
 879         out = open_pager();
 880         internal_dump_inode(out, "", inode_num, inode, 1);
 881         close_pager(out);
 882 }
 883
 884 void do_stat(int argc, char *argv[])
 885 {
 886         ext2_ino_t      inode;
 887         struct ext2_inode * inode_buf;
 888
 889         if (check_fs_open(argv[0]))
 890                 return;
 891
 892         inode_buf = (struct ext2_inode *)
 893                         malloc(EXT2_INODE_SIZE(current_fs->super));
 894         if (!inode_buf) {
 895                 fprintf(stderr, "do_stat: can't allocate buffer\n");
 896                 return;
 897         }
 898
 899         if (common_inode_args_process(argc, argv, &inode, 0)) {
 900                 free(inode_buf);
 901                 return;
 902         }
 903
 904         if (debugfs_read_inode_full(inode, inode_buf, argv[0],
 905                                         EXT2_INODE_SIZE(current_fs->super))) {
 906                 free(inode_buf);
 907                 return;
 908         }
 909
 910         dump_inode(inode, inode_buf);
 911         free(inode_buf);
 912         return;
 913 }
 914
 915 void do_dump_extents(int argc, char **argv)
 916 {
 917         struct ext2_inode inode;
 918         ext2_ino_t      ino;
 919         FILE            *out;
 920         int             c, flags = 0;
 921         int             logical_width;
 922         int             physical_width;
 923
 924         reset_getopt();
 925         while ((c = getopt(argc, argv, "nl")) != EOF) {
 926                 switch (c) {
 927                 case 'n':
 928                         flags |= DUMP_NODE_EXTENTS;
 929                         break;
 930                 case 'l':
 931                         flags |= DUMP_LEAF_EXTENTS;
 932                         break;
 933                 }
 934         }
 935
 936         if (argc != optind + 1) {
 937                 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
 938                 return;
 939         }
 940
 941         if (flags == 0)
 942                 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
 943         flags |= DUMP_EXTENT_TABLE;
 944
 945         if (check_fs_open(argv[0]))
 946                 return;
 947
 948         ino = string_to_inode(argv[optind]);
 949         if (ino == 0)
 950                 return;
 951
 952         if (debugfs_read_inode(ino, &inode, argv[0]))
 953                 return;
 954
 955         if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
 956                 fprintf(stderr, "%s: does not uses extent block maps\n",
 957                         argv[optind]);
 958                 return;
 959         }
 960
 961         logical_width = int_log10((EXT2_I_SIZE(&inode)+current_fs->blocksize-1)/
 962                                   current_fs->blocksize) + 1;
 963         if (logical_width < 5)
 964                 logical_width = 5;
 965         physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1;
 966         if (physical_width < 5)
 967                 physical_width = 5;
 968
 969         out = open_pager();
 970         dump_extents(out, "", ino, flags, logical_width, physical_width);
 971         close_pager(out);
 972         return;
 973 }
 974
 975 static int print_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
 976                              blk64_t *blocknr,
 977                              e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
 978                              blk64_t ref_block EXT2FS_ATTR((unused)),
 979                              int ref_offset EXT2FS_ATTR((unused)),
 980                              void *private EXT2FS_ATTR((unused)))
 981 {
 982         printf("%llu ", *blocknr);
 983         return 0;
 984 }
 985
 986 void do_blocks(int argc, char *argv[])
 987 {
 988         ext2_ino_t      inode;
 989
 990         if (check_fs_open(argv[0]))
 991                 return;
 992
 993         if (common_inode_args_process(argc, argv, &inode, 0)) {
 994                 return;
 995         }
 996
 997         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
 998                               print_blocks_proc, NULL);
 999         fputc('\n', stdout);
1000         return;
1001 }
1002
1003 void do_chroot(int argc, char *argv[])
1004 {
1005         ext2_ino_t inode;
1006         int retval;
1007
1008         if (common_inode_args_process(argc, argv, &inode, 0))
1009                 return;
1010
1011         retval = ext2fs_check_directory(current_fs, inode);
1012         if (retval)  {
1013                 com_err(argv[1], retval, 0);
1014                 return;
1015         }
1016         root = inode;
1017 }
1018
1019 #ifndef READ_ONLY
1020 void do_clri(int argc, char *argv[])
1021 {
1022         ext2_ino_t inode;
1023         struct ext2_inode inode_buf;
1024
1025         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1026                 return;
1027
1028         if (debugfs_read_inode(inode, &inode_buf, argv[0]))
1029                 return;
1030         memset(&inode_buf, 0, sizeof(inode_buf));
1031         if (debugfs_write_inode(inode, &inode_buf, argv[0]))
1032                 return;
1033 }
1034
1035 void do_freei(int argc, char *argv[])
1036 {
1037         unsigned int    len = 1;
1038         int             err = 0;
1039         ext2_ino_t      inode;
1040
1041         if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1042                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1043                 return;
1044         if (check_fs_read_write(argv[0]))
1045                 return;
1046
1047         inode = string_to_inode(argv[1]);
1048         if (!inode)
1049                 return;
1050
1051         if (argc == 3) {
1052                 len = parse_ulong(argv[2], argv[0], "length", &err);
1053                 if (err)
1054                         return;
1055         }
1056
1057         if (len == 1 &&
1058             !ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1059                 com_err(argv[0], 0, "Warning: inode already clear");
1060         while (len-- > 0)
1061                 ext2fs_unmark_inode_bitmap2(current_fs->inode_map, inode++);
1062         ext2fs_mark_ib_dirty(current_fs);
1063 }
1064
1065 void do_seti(int argc, char *argv[])
1066 {
1067         unsigned int    len = 1;
1068         int             err = 0;
1069         ext2_ino_t      inode;
1070
1071         if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1072                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1073                 return;
1074         if (check_fs_read_write(argv[0]))
1075                 return;
1076
1077         inode = string_to_inode(argv[1]);
1078         if (!inode)
1079                 return;
1080
1081         if (argc == 3) {
1082                 len = parse_ulong(argv[2], argv[0], "length", &err);
1083                 if (err)
1084                         return;
1085         }
1086
1087         if ((len == 1) &&
1088             ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1089                 com_err(argv[0], 0, "Warning: inode already set");
1090         while (len-- > 0)
1091                 ext2fs_mark_inode_bitmap2(current_fs->inode_map, inode++);
1092         ext2fs_mark_ib_dirty(current_fs);
1093 }
1094 #endif /* READ_ONLY */
1095
1096 void do_testi(int argc, char *argv[])
1097 {
1098         ext2_ino_t inode;
1099
1100         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
1101                 return;
1102
1103         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1104                 printf("Inode %u is marked in use\n", inode);
1105         else
1106                 printf("Inode %u is not in use\n", inode);
1107 }
1108
1109 #ifndef READ_ONLY
1110 void do_freeb(int argc, char *argv[])
1111 {
1112         blk64_t block;
1113         blk64_t count = 1;
1114
1115         if (common_block_args_process(argc, argv, &block, &count))
1116                 return;
1117         if (check_fs_read_write(argv[0]))
1118                 return;
1119         while (count-- > 0) {
1120                 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
1121                         com_err(argv[0], 0, "Warning: block %llu already clear",
1122                                 block);
1123                 ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
1124                 block++;
1125         }
1126         ext2fs_mark_bb_dirty(current_fs);
1127 }
1128
1129 void do_setb(int argc, char *argv[])
1130 {
1131         blk64_t block;
1132         blk64_t count = 1;
1133
1134         if (common_block_args_process(argc, argv, &block, &count))
1135                 return;
1136         if (check_fs_read_write(argv[0]))
1137                 return;
1138         while (count-- > 0) {
1139                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1140                         com_err(argv[0], 0, "Warning: block %llu already set",
1141                                 block);
1142                 ext2fs_mark_block_bitmap2(current_fs->block_map,block);
1143                 block++;
1144         }
1145         ext2fs_mark_bb_dirty(current_fs);
1146 }
1147 #endif /* READ_ONLY */
1148
1149 void do_testb(int argc, char *argv[])
1150 {
1151         blk64_t block;
1152         blk64_t count = 1;
1153
1154         if (common_block_args_process(argc, argv, &block, &count))
1155                 return;
1156         while (count-- > 0) {
1157                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1158                         printf("Block %llu marked in use\n", block);
1159                 else
1160                         printf("Block %llu not in use\n", block);
1161                 block++;
1162         }
1163 }
1164
1165 #ifndef READ_ONLY
1166 static void modify_u8(char *com, const char *prompt,
1167                       const char *format, __u8 *val)
1168 {
1169         char buf[200];
1170         unsigned long v;
1171         char *tmp;
1172
1173         sprintf(buf, format, *val);
1174         printf("%30s    [%s] ", prompt, buf);
1175         if (!fgets(buf, sizeof(buf), stdin))
1176                 return;
1177         if (buf[strlen (buf) - 1] == '\n')
1178                 buf[strlen (buf) - 1] = '\0';
1179         if (!buf[0])
1180                 return;
1181         v = strtoul(buf, &tmp, 0);
1182         if (*tmp)
1183                 com_err(com, 0, "Bad value - %s", buf);
1184         else
1185                 *val = v;
1186 }
1187
1188 static void modify_u16(char *com, const char *prompt,
1189                        const char *format, __u16 *val)
1190 {
1191         char buf[200];
1192         unsigned long v;
1193         char *tmp;
1194
1195         sprintf(buf, format, *val);
1196         printf("%30s    [%s] ", prompt, buf);
1197         if (!fgets(buf, sizeof(buf), stdin))
1198                 return;
1199         if (buf[strlen (buf) - 1] == '\n')
1200                 buf[strlen (buf) - 1] = '\0';
1201         if (!buf[0])
1202                 return;
1203         v = strtoul(buf, &tmp, 0);
1204         if (*tmp)
1205                 com_err(com, 0, "Bad value - %s", buf);
1206         else
1207                 *val = v;
1208 }
1209
1210 static void modify_u32(char *com, const char *prompt,
1211                        const char *format, __u32 *val)
1212 {
1213         char buf[200];
1214         unsigned long v;
1215         char *tmp;
1216
1217         sprintf(buf, format, *val);
1218         printf("%30s    [%s] ", prompt, buf);
1219         if (!fgets(buf, sizeof(buf), stdin))
1220                 return;
1221         if (buf[strlen (buf) - 1] == '\n')
1222                 buf[strlen (buf) - 1] = '\0';
1223         if (!buf[0])
1224                 return;
1225         v = strtoul(buf, &tmp, 0);
1226         if (*tmp)
1227                 com_err(com, 0, "Bad value - %s", buf);
1228         else
1229                 *val = v;
1230 }
1231
1232
1233 void do_modify_inode(int argc, char *argv[])
1234 {
1235         struct ext2_inode inode;
1236         ext2_ino_t      inode_num;
1237         int             i;
1238         unsigned char   *frag, *fsize;
1239         char            buf[80];
1240         int             os;
1241         const char      *hex_format = "0x%x";
1242         const char      *octal_format = "0%o";
1243         const char      *decimal_format = "%d";
1244         const char      *unsignedlong_format = "%lu";
1245
1246         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1247                 return;
1248
1249         os = current_fs->super->s_creator_os;
1250
1251         if (debugfs_read_inode(inode_num, &inode, argv[1]))
1252                 return;
1253
1254         modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1255         modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1256         modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1257         modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1258         modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1259         modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1260         modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1261         modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1262         modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1263         if (os == EXT2_OS_LINUX)
1264                 modify_u16(argv[0], "Block count high", unsignedlong_format,
1265                            &inode.osd2.linux2.l_i_blocks_hi);
1266         modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1267         modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1268         modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1269 #if 0
1270         modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1271 #endif
1272         modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1273         if (LINUX_S_ISDIR(inode.i_mode))
1274                 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
1275         else
1276                 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
1277
1278         if (os == EXT2_OS_HURD)
1279                 modify_u32(argv[0], "Translator Block",
1280                             decimal_format, &inode.osd1.hurd1.h_i_translator);
1281
1282         modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1283         switch (os) {
1284             case EXT2_OS_HURD:
1285                 frag = &inode.osd2.hurd2.h_i_frag;
1286                 fsize = &inode.osd2.hurd2.h_i_fsize;
1287                 break;
1288             default:
1289                 frag = fsize = 0;
1290         }
1291         if (frag)
1292                 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1293         if (fsize)
1294                 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1295
1296         for (i=0;  i < EXT2_NDIR_BLOCKS; i++) {
1297                 sprintf(buf, "Direct Block #%d", i);
1298                 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1299         }
1300         modify_u32(argv[0], "Indirect Block", decimal_format,
1301                     &inode.i_block[EXT2_IND_BLOCK]);
1302         modify_u32(argv[0], "Double Indirect Block", decimal_format,
1303                     &inode.i_block[EXT2_DIND_BLOCK]);
1304         modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1305                     &inode.i_block[EXT2_TIND_BLOCK]);
1306         if (debugfs_write_inode(inode_num, &inode, argv[1]))
1307                 return;
1308 }
1309 #endif /* READ_ONLY */
1310
1311 void do_change_working_dir(int argc, char *argv[])
1312 {
1313         ext2_ino_t      inode;
1314         int             retval;
1315
1316         if (common_inode_args_process(argc, argv, &inode, 0))
1317                 return;
1318
1319         retval = ext2fs_check_directory(current_fs, inode);
1320         if (retval) {
1321                 com_err(argv[1], retval, 0);
1322                 return;
1323         }
1324         cwd = inode;
1325         return;
1326 }
1327
1328 void do_print_working_directory(int argc, char *argv[])
1329 {
1330         int     retval;
1331         char    *pathname = NULL;
1332
1333         if (common_args_process(argc, argv, 1, 1,
1334                                 "print_working_directory", "", 0))
1335                 return;
1336
1337         retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1338         if (retval) {
1339                 com_err(argv[0], retval,
1340                         "while trying to get pathname of cwd");
1341         }
1342         printf("[pwd]   INODE: %6u  PATH: %s\n",
1343                cwd, pathname ? pathname : "NULL");
1344         if (pathname) {
1345                 free(pathname);
1346                 pathname = NULL;
1347         }
1348         retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1349         if (retval) {
1350                 com_err(argv[0], retval,
1351                         "while trying to get pathname of root");
1352         }
1353         printf("[root]  INODE: %6u  PATH: %s\n",
1354                root, pathname ? pathname : "NULL");
1355         if (pathname) {
1356                 free(pathname);
1357                 pathname = NULL;
1358         }
1359         return;
1360 }
1361
1362 #ifndef READ_ONLY
1363 static void make_link(char *sourcename, char *destname)
1364 {
1365         ext2_ino_t      ino;
1366         struct ext2_inode inode;
1367         int             retval;
1368         ext2_ino_t      dir;
1369         char            *dest, *cp, *base_name;
1370
1371         /*
1372          * Get the source inode
1373          */
1374         ino = string_to_inode(sourcename);
1375         if (!ino)
1376                 return;
1377         base_name = strrchr(sourcename, '/');
1378         if (base_name)
1379                 base_name++;
1380         else
1381                 base_name = sourcename;
1382         /*
1383          * Figure out the destination.  First see if it exists and is
1384          * a directory.
1385          */
1386         if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1387                 dest = base_name;
1388         else {
1389                 /*
1390                  * OK, it doesn't exist.  See if it is
1391                  * '<dir>/basename' or 'basename'
1392                  */
1393                 cp = strrchr(destname, '/');
1394                 if (cp) {
1395                         *cp = 0;
1396                         dir = string_to_inode(destname);
1397                         if (!dir)
1398                                 return;
1399                         dest = cp+1;
1400                 } else {
1401                         dir = cwd;
1402                         dest = destname;
1403                 }
1404         }
1405
1406         if (debugfs_read_inode(ino, &inode, sourcename))
1407                 return;
1408
1409         retval = ext2fs_link(current_fs, dir, dest, ino,
1410                              ext2_file_type(inode.i_mode));
1411         if (retval)
1412                 com_err("make_link", retval, 0);
1413         return;
1414 }
1415
1416
1417 void do_link(int argc, char *argv[])
1418 {
1419         if (common_args_process(argc, argv, 3, 3, "link",
1420                                 "<source file> <dest_name>", CHECK_FS_RW))
1421                 return;
1422
1423         make_link(argv[1], argv[2]);
1424 }
1425
1426 static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1427                             e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1428                             blk64_t ref_block EXT2FS_ATTR((unused)),
1429                             int ref_offset EXT2FS_ATTR((unused)),
1430                             void *private EXT2FS_ATTR((unused)))
1431 {
1432         blk64_t block;
1433
1434         block = *blocknr;
1435         ext2fs_block_alloc_stats2(fs, block, +1);
1436         return 0;
1437 }
1438
1439 void do_undel(int argc, char *argv[])
1440 {
1441         ext2_ino_t      ino;
1442         struct ext2_inode inode;
1443
1444         if (common_args_process(argc, argv, 2, 3, "undelete",
1445                                 "<inode_num> [dest_name]",
1446                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1447                 return;
1448
1449         ino = string_to_inode(argv[1]);
1450         if (!ino)
1451                 return;
1452
1453         if (debugfs_read_inode(ino, &inode, argv[1]))
1454                 return;
1455
1456         if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
1457                 com_err(argv[1], 0, "Inode is not marked as deleted");
1458                 return;
1459         }
1460
1461         /*
1462          * XXX this function doesn't handle changing the links count on the
1463          * parent directory when undeleting a directory.
1464          */
1465         inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1466         inode.i_dtime = 0;
1467
1468         if (debugfs_write_inode(ino, &inode, argv[0]))
1469                 return;
1470
1471         ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1472                               mark_blocks_proc, NULL);
1473
1474         ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1475
1476         if (argc > 2)
1477                 make_link(argv[1], argv[2]);
1478 }
1479
1480 static void unlink_file_by_name(char *filename)
1481 {
1482         int             retval;
1483         ext2_ino_t      dir;
1484         char            *base_name;
1485
1486         base_name = strrchr(filename, '/');
1487         if (base_name) {
1488                 *base_name++ = '\0';
1489                 dir = string_to_inode(filename);
1490                 if (!dir)
1491                         return;
1492         } else {
1493                 dir = cwd;
1494                 base_name = filename;
1495         }
1496         retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1497         if (retval)
1498                 com_err("unlink_file_by_name", retval, 0);
1499         return;
1500 }
1501
1502 void do_unlink(int argc, char *argv[])
1503 {
1504         if (common_args_process(argc, argv, 2, 2, "link",
1505                                 "<pathname>", CHECK_FS_RW))
1506                 return;
1507
1508         unlink_file_by_name(argv[1]);
1509 }
1510 #endif /* READ_ONLY */
1511
1512 void do_find_free_block(int argc, char *argv[])
1513 {
1514         blk64_t free_blk, goal, first_free = 0;
1515         int             count;
1516         errcode_t       retval;
1517         char            *tmp;
1518
1519         if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1520                 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1521                 return;
1522         }
1523         if (check_fs_open(argv[0]))
1524                 return;
1525
1526         if (argc > 1) {
1527                 count = strtol(argv[1],&tmp,0);
1528                 if (*tmp) {
1529                         com_err(argv[0], 0, "Bad count - %s", argv[1]);
1530                         return;
1531                 }
1532         } else
1533                 count = 1;
1534
1535         if (argc > 2) {
1536                 goal = strtol(argv[2], &tmp, 0);
1537                 if (*tmp) {
1538                         com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1539                         return;
1540                 }
1541         }
1542         else
1543                 goal = current_fs->super->s_first_data_block;
1544
1545         printf("Free blocks found: ");
1546         free_blk = goal - 1;
1547         while (count-- > 0) {
1548                 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
1549                                            &free_blk);
1550                 if (first_free) {
1551                         if (first_free == free_blk)
1552                                 break;
1553                 } else
1554                         first_free = free_blk;
1555                 if (retval) {
1556                         com_err("ext2fs_new_block", retval, 0);
1557                         return;
1558                 } else
1559                         printf("%llu ", free_blk);
1560         }
1561         printf("\n");
1562 }
1563
1564 void do_find_free_inode(int argc, char *argv[])
1565 {
1566         ext2_ino_t      free_inode, dir;
1567         int             mode;
1568         int             retval;
1569         char            *tmp;
1570
1571         if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1572                 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
1573                 return;
1574         }
1575         if (check_fs_open(argv[0]))
1576                 return;
1577
1578         if (argc > 1) {
1579                 dir = strtol(argv[1], &tmp, 0);
1580                 if (*tmp) {
1581                         com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1582                         return;
1583                 }
1584         }
1585         else
1586                 dir = root;
1587         if (argc > 2) {
1588                 mode = strtol(argv[2], &tmp, 0);
1589                 if (*tmp) {
1590                         com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1591                         return;
1592                 }
1593         } else
1594                 mode = 010755;
1595
1596         retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1597         if (retval)
1598                 com_err("ext2fs_new_inode", retval, 0);
1599         else
1600                 printf("Free inode found: %u\n", free_inode);
1601 }
1602
1603 #ifndef READ_ONLY
1604 void do_write(int argc, char *argv[])
1605 {
1606         errcode_t       retval;
1607
1608         if (common_args_process(argc, argv, 3, 3, "write",
1609                                 "<native file> <new file>", CHECK_FS_RW))
1610                 return;
1611
1612         retval = do_write_internal(current_fs, cwd, argv[1], argv[2], root);
1613         if (retval)
1614                 com_err(argv[0], retval, 0);
1615 }
1616
1617 void do_mknod(int argc, char *argv[])
1618 {
1619         unsigned long   mode, major, minor;
1620         errcode_t       retval;
1621         int             filetype, nr;
1622         struct stat     st;
1623
1624         if (check_fs_open(argv[0]))
1625                 return;
1626         if (argc < 3 || argv[2][1]) {
1627         usage:
1628                 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1629                 return;
1630         }
1631
1632         mode = minor = major = 0;
1633         switch (argv[2][0]) {
1634                 case 'p':
1635                         st.st_mode = S_IFIFO;
1636                         nr = 3;
1637                         break;
1638                 case 'c':
1639                         st.st_mode = S_IFCHR;
1640                         nr = 5;
1641                         break;
1642                 case 'b':
1643                         st.st_mode = S_IFBLK;
1644                         nr = 5;
1645                         break;
1646                 default:
1647                         nr = 0;
1648         }
1649
1650         if (nr == 5) {
1651                 major = strtoul(argv[3], argv+3, 0);
1652                 minor = strtoul(argv[4], argv+4, 0);
1653                 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1654                         nr = 0;
1655         }
1656
1657         if (argc != nr)
1658                 goto usage;
1659
1660         st.st_rdev = makedev(major, minor);
1661         retval = do_mknod_internal(current_fs, cwd, argv[1], &st);
1662         if (retval)
1663                 com_err(argv[0], retval, 0);
1664 }
1665
1666 void do_mkdir(int argc, char *argv[])
1667 {
1668         errcode_t retval;
1669
1670         if (common_args_process(argc, argv, 2, 2, "mkdir",
1671                                 "<filename>", CHECK_FS_RW))
1672                 return;
1673
1674         retval = do_mkdir_internal(current_fs, cwd, argv[1], NULL, root);
1675         if (retval)
1676                 com_err(argv[0], retval, 0);
1677
1678 }
1679
1680 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1681                                e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1682                                blk64_t ref_block EXT2FS_ATTR((unused)),
1683                                int ref_offset EXT2FS_ATTR((unused)),
1684                                void *private EXT2FS_ATTR((unused)))
1685 {
1686         blk64_t block;
1687
1688         block = *blocknr;
1689         ext2fs_block_alloc_stats2(fs, block, -1);
1690         return 0;
1691 }
1692
1693 static void kill_file_by_inode(ext2_ino_t inode)
1694 {
1695         struct ext2_inode inode_buf;
1696
1697         if (debugfs_read_inode(inode, &inode_buf, 0))
1698                 return;
1699         inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1700         if (debugfs_write_inode(inode, &inode_buf, 0))
1701                 return;
1702         if (ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf)) {
1703                 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY,
1704                                       NULL, release_blocks_proc, NULL);
1705         }
1706         printf("\n");
1707         ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1708                                   LINUX_S_ISDIR(inode_buf.i_mode));
1709 }
1710
1711
1712 void do_kill_file(int argc, char *argv[])
1713 {
1714         ext2_ino_t inode_num;
1715
1716         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1717                 return;
1718
1719         kill_file_by_inode(inode_num);
1720 }
1721
1722 void do_rm(int argc, char *argv[])
1723 {
1724         int retval;
1725         ext2_ino_t inode_num;
1726         struct ext2_inode inode;
1727
1728         if (common_args_process(argc, argv, 2, 2, "rm",
1729                                 "<filename>", CHECK_FS_RW))
1730                 return;
1731
1732         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1733         if (retval) {
1734                 com_err(argv[0], retval, "while trying to resolve filename");
1735                 return;
1736         }
1737
1738         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1739                 return;
1740
1741         if (LINUX_S_ISDIR(inode.i_mode)) {
1742                 com_err(argv[0], 0, "file is a directory");
1743                 return;
1744         }
1745
1746         --inode.i_links_count;
1747         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1748                 return;
1749
1750         unlink_file_by_name(argv[1]);
1751         if (inode.i_links_count == 0)
1752                 kill_file_by_inode(inode_num);
1753 }
1754
1755 struct rd_struct {
1756         ext2_ino_t      parent;
1757         int             empty;
1758 };
1759
1760 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1761                       int       entry EXT2FS_ATTR((unused)),
1762                       struct ext2_dir_entry *dirent,
1763                       int       offset EXT2FS_ATTR((unused)),
1764                       int       blocksize EXT2FS_ATTR((unused)),
1765                       char      *buf EXT2FS_ATTR((unused)),
1766                       void      *private)
1767 {
1768         struct rd_struct *rds = (struct rd_struct *) private;
1769
1770         if (dirent->inode == 0)
1771                 return 0;
1772         if ((ext2fs_dirent_name_len(dirent) == 1) && (dirent->name[0] == '.'))
1773                 return 0;
1774         if ((ext2fs_dirent_name_len(dirent) == 2) && (dirent->name[0] == '.') &&
1775             (dirent->name[1] == '.')) {
1776                 rds->parent = dirent->inode;
1777                 return 0;
1778         }
1779         rds->empty = 0;
1780         return 0;
1781 }
1782
1783 void do_rmdir(int argc, char *argv[])
1784 {
1785         int retval;
1786         ext2_ino_t inode_num;
1787         struct ext2_inode inode;
1788         struct rd_struct rds;
1789
1790         if (common_args_process(argc, argv, 2, 2, "rmdir",
1791                                 "<filename>", CHECK_FS_RW))
1792                 return;
1793
1794         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1795         if (retval) {
1796                 com_err(argv[0], retval, "while trying to resolve filename");
1797                 return;
1798         }
1799
1800         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1801                 return;
1802
1803         if (!LINUX_S_ISDIR(inode.i_mode)) {
1804                 com_err(argv[0], 0, "file is not a directory");
1805                 return;
1806         }
1807
1808         rds.parent = 0;
1809         rds.empty = 1;
1810
1811         retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1812                                     0, rmdir_proc, &rds);
1813         if (retval) {
1814                 com_err(argv[0], retval, "while iterating over directory");
1815                 return;
1816         }
1817         if (rds.empty == 0) {
1818                 com_err(argv[0], 0, "directory not empty");
1819                 return;
1820         }
1821
1822         inode.i_links_count = 0;
1823         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1824                 return;
1825
1826         unlink_file_by_name(argv[1]);
1827         kill_file_by_inode(inode_num);
1828
1829         if (rds.parent) {
1830                 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
1831                         return;
1832                 if (inode.i_links_count > 1)
1833                         inode.i_links_count--;
1834                 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
1835                         return;
1836         }
1837 }
1838 #endif /* READ_ONLY */
1839
1840 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
1841                             char *argv[] EXT2FS_ATTR((unused)))
1842 {
1843         if (current_fs)
1844                 printf("Open mode: read-%s\n",
1845                        current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
1846         printf("Filesystem in use: %s\n",
1847                current_fs ? current_fs->device_name : "--none--");
1848 }
1849
1850 #ifndef READ_ONLY
1851 void do_expand_dir(int argc, char *argv[])
1852 {
1853         ext2_ino_t inode;
1854         int retval;
1855
1856         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1857                 return;
1858
1859         retval = ext2fs_expand_dir(current_fs, inode);
1860         if (retval)
1861                 com_err("ext2fs_expand_dir", retval, 0);
1862         return;
1863 }
1864
1865 void do_features(int argc, char *argv[])
1866 {
1867         int     i;
1868
1869         if (check_fs_open(argv[0]))
1870                 return;
1871
1872         if ((argc != 1) && check_fs_read_write(argv[0]))
1873                 return;
1874         for (i=1; i < argc; i++) {
1875                 if (e2p_edit_feature(argv[i],
1876                                      &current_fs->super->s_feature_compat, 0))
1877                         com_err(argv[0], 0, "Unknown feature: %s\n",
1878                                 argv[i]);
1879                 else
1880                         ext2fs_mark_super_dirty(current_fs);
1881         }
1882         print_features(current_fs->super, stdout);
1883 }
1884 #endif /* READ_ONLY */
1885
1886 void do_bmap(int argc, char *argv[])
1887 {
1888         ext2_ino_t      ino;
1889         blk64_t         blk, pblk;
1890         int             err;
1891         errcode_t       errcode;
1892
1893         if (common_args_process(argc, argv, 3, 3, argv[0],
1894                                 "<file> logical_blk", 0))
1895                 return;
1896
1897         ino = string_to_inode(argv[1]);
1898         if (!ino)
1899                 return;
1900         err = strtoblk(argv[0], argv[2], "logical block", &blk);
1901         if (err)
1902                 return;
1903
1904         errcode = ext2fs_bmap2(current_fs, ino, 0, 0, 0, blk, 0, &pblk);
1905         if (errcode) {
1906                 com_err(argv[0], errcode,
1907                         "while mapping logical block %llu\n", blk);
1908                 return;
1909         }
1910         printf("%llu\n", pblk);
1911 }
1912
1913 void do_imap(int argc, char *argv[])
1914 {
1915         ext2_ino_t      ino;
1916         unsigned long   group, block, block_nr, offset;
1917
1918         if (common_args_process(argc, argv, 2, 2, argv[0],
1919                                 "<file>", 0))
1920                 return;
1921         ino = string_to_inode(argv[1]);
1922         if (!ino)
1923                 return;
1924
1925         group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
1926         offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
1927                 EXT2_INODE_SIZE(current_fs->super);
1928         block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
1929         if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
1930                 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
1931                         group);
1932                 return;
1933         }
1934         block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
1935                 block;
1936         offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
1937
1938         printf("Inode %d is part of block group %lu\n"
1939                "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
1940                block_nr, offset);
1941
1942 }
1943
1944 #ifndef READ_ONLY
1945 void do_set_current_time(int argc, char *argv[])
1946 {
1947         time_t now;
1948
1949         if (common_args_process(argc, argv, 2, 2, argv[0],
1950                                 "<time>", 0))
1951                 return;
1952
1953         now = string_to_time(argv[1]);
1954         if (now == ((time_t) -1)) {
1955                 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
1956                         argv[1]);
1957                 return;
1958
1959         } else {
1960                 printf("Setting current time to %s\n", time_to_string(now));
1961                 current_fs->now = now;
1962         }
1963 }
1964 #endif /* READ_ONLY */
1965
1966 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
1967 {
1968         int compat, bit, ret;
1969         unsigned int feature_mask;
1970
1971         if (name) {
1972                 if (feature_type == E2P_FS_FEATURE)
1973                         ret = e2p_string2feature(name, &compat, &feature_mask);
1974                 else
1975                         ret = e2p_jrnl_string2feature(name, &compat,
1976                                                       &feature_mask);
1977                 if (ret)
1978                         return ret;
1979
1980                 if (!(supp[compat] & feature_mask))
1981                         return 1;
1982         } else {
1983                 for (compat = 0; compat < 3; compat++) {
1984                         for (bit = 0, feature_mask = 1; bit < 32;
1985                              bit++, feature_mask <<= 1) {
1986                                 if (supp[compat] & feature_mask) {
1987                                         if (feature_type == E2P_FS_FEATURE)
1988                                                 fprintf(stdout, " %s",
1989                                                 e2p_feature2string(compat,
1990                                                 feature_mask));
1991                                         else
1992                                                 fprintf(stdout, " %s",
1993                                                 e2p_jrnl_feature2string(compat,
1994                                                 feature_mask));
1995                                 }
1996                         }
1997                 }
1998                 fprintf(stdout, "\n");
1999         }
2000
2001         return 0;
2002 }
2003
2004 void do_supported_features(int argc, char *argv[])
2005 {
2006         int     ret;
2007         __u32   supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2008                             EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2009                             EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2010         __u32   jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES,
2011                                  JFS_KNOWN_INCOMPAT_FEATURES,
2012                                  JFS_KNOWN_ROCOMPAT_FEATURES };
2013
2014         if (argc > 1) {
2015                 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2016                 if (ret) {
2017                         ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2018                                                 argv[1]);
2019                 }
2020                 if (ret)
2021                         com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2022                 else
2023                         fprintf(stdout, "Supported feature: %s\n", argv[1]);
2024         } else {
2025                 fprintf(stdout, "Supported features:");
2026                 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2027                 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2028         }
2029 }
2030
2031 #ifndef READ_ONLY
2032 void do_punch(int argc, char *argv[])
2033 {
2034         ext2_ino_t      ino;
2035         blk64_t         start, end;
2036         int             err;
2037         errcode_t       errcode;
2038
2039         if (common_args_process(argc, argv, 3, 4, argv[0],
2040                                 "<file> start_blk [end_blk]",
2041                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
2042                 return;
2043
2044         ino = string_to_inode(argv[1]);
2045         if (!ino)
2046                 return;
2047         err = strtoblk(argv[0], argv[2], "logical block", &start);
2048         if (err)
2049                 return;
2050         if (argc == 4) {
2051                 err = strtoblk(argv[0], argv[3], "logical block", &end);
2052                 if (err)
2053                         return;
2054         } else
2055                 end = ~0;
2056
2057         errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
2058
2059         if (errcode) {
2060                 com_err(argv[0], errcode,
2061                         "while truncating inode %u from %llu to %llu\n", ino,
2062                         (unsigned long long) start, (unsigned long long) end);
2063                 return;
2064         }
2065 }
2066 #endif /* READ_ONLY */
2067
2068 void do_symlink(int argc, char *argv[])
2069 {
2070         errcode_t       retval;
2071
2072         if (common_args_process(argc, argv, 3, 3, "symlink",
2073                                 "<filename> <target>", CHECK_FS_RW))
2074                 return;
2075
2076         retval = do_symlink_internal(current_fs, cwd, argv[1], argv[2], root);
2077         if (retval)
2078                 com_err(argv[0], retval, 0);
2079
2080 }
2081
2082 void do_dump_mmp(int argc EXT2FS_ATTR((unused)), char *argv[])
2083 {
2084 #if CONFIG_MMP
2085         struct ext2_super_block *sb;
2086         struct mmp_struct *mmp_s;
2087         time_t t;
2088         errcode_t retval = 0;
2089
2090         if (check_fs_open(argv[0]))
2091                 return;
2092
2093         sb  = current_fs->super;
2094
2095         if (current_fs->mmp_buf == NULL) {
2096                 retval = ext2fs_get_mem(current_fs->blocksize,
2097                                         &current_fs->mmp_buf);
2098                 if (retval) {
2099                         com_err(argv[0], retval, "allocating MMP buffer.\n");
2100                         return;
2101                 }
2102         }
2103
2104         mmp_s = current_fs->mmp_buf;
2105
2106         retval = ext2fs_mmp_read(current_fs, current_fs->super->s_mmp_block,
2107                                  current_fs->mmp_buf);
2108         if (retval) {
2109                 com_err(argv[0], retval, "reading MMP block.\n");
2110                 return;
2111         }
2112
2113         t = mmp_s->mmp_time;
2114         fprintf(stdout, "block_number: %llu\n", current_fs->super->s_mmp_block);
2115         fprintf(stdout, "update_interval: %d\n",
2116                 current_fs->super->s_mmp_update_interval);
2117         fprintf(stdout, "check_interval: %d\n", mmp_s->mmp_check_interval);
2118         fprintf(stdout, "sequence: %08x\n", mmp_s->mmp_seq);
2119         fprintf(stdout, "time: %lld -- %s", mmp_s->mmp_time, ctime(&t));
2120         fprintf(stdout, "node_name: %s\n", mmp_s->mmp_nodename);
2121         fprintf(stdout, "device_name: %s\n", mmp_s->mmp_bdevname);
2122         fprintf(stdout, "magic: 0x%x\n", mmp_s->mmp_magic);
2123         fprintf(stdout, "checksum: 0x%08x\n", mmp_s->mmp_checksum);
2124 #else
2125         fprintf(stdout, "MMP is unsupported, please recompile with "
2126                         "--enable-mmp\n");
2127 #endif
2128 }
2129
2130 static int source_file(const char *cmd_file, int ss_idx)
2131 {
2132         FILE            *f;
2133         char            buf[BUFSIZ];
2134         char            *cp;
2135         int             exit_status = 0;
2136         int             retval;
2137
2138         if (strcmp(cmd_file, "-") == 0)
2139                 f = stdin;
2140         else {
2141                 f = fopen(cmd_file, "r");
2142                 if (!f) {
2143                         perror(cmd_file);
2144                         exit(1);
2145                 }
2146         }
2147         fflush(stdout);
2148         fflush(stderr);
2149         setbuf(stdout, NULL);
2150         setbuf(stderr, NULL);
2151         while (!feof(f)) {
2152                 if (fgets(buf, sizeof(buf), f) == NULL)
2153                         break;
2154                 cp = strchr(buf, '\n');
2155                 if (cp)
2156                         *cp = 0;
2157                 cp = strchr(buf, '\r');
2158                 if (cp)
2159                         *cp = 0;
2160                 printf("debugfs: %s\n", buf);
2161                 retval = ss_execute_line(ss_idx, buf);
2162                 if (retval) {
2163                         ss_perror(ss_idx, retval, buf);
2164                         exit_status++;
2165                 }
2166         }
2167         if (f != stdin)
2168                 fclose(f);
2169         return exit_status;
2170 }
2171
2172 int main(int argc, char **argv)
2173 {
2174         int             retval;
2175         const char      *usage =
2176                 "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] "
2177                 "[-R request] [-V] ["
2178 #ifndef READ_ONLY
2179                 "[-w] "
2180 #endif
2181                 "[-c] device]";
2182         int             c;
2183         int             open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
2184         char            *request = 0;
2185         int             exit_status = 0;
2186         char            *cmd_file = 0;
2187         blk64_t         superblock = 0;
2188         blk64_t         blocksize = 0;
2189         int             catastrophic = 0;
2190         char            *data_filename = 0;
2191 #ifdef READ_ONLY
2192         const char      *opt_string = "nicR:f:b:s:Vd:D";
2193 #else
2194         const char      *opt_string = "niwcR:f:b:s:Vd:D";
2195 #endif
2196
2197         if (debug_prog_name == 0)
2198 #ifdef READ_ONLY
2199                 debug_prog_name = "rdebugfs";
2200 #else
2201                 debug_prog_name = "debugfs";
2202 #endif
2203         add_error_table(&et_ext2_error_table);
2204         fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2205                  E2FSPROGS_VERSION, E2FSPROGS_DATE);
2206
2207         while ((c = getopt (argc, argv, opt_string)) != EOF) {
2208                 switch (c) {
2209                 case 'R':
2210                         request = optarg;
2211                         break;
2212                 case 'f':
2213                         cmd_file = optarg;
2214                         break;
2215                 case 'd':
2216                         data_filename = optarg;
2217                         break;
2218                 case 'i':
2219                         open_flags |= EXT2_FLAG_IMAGE_FILE;
2220                         break;
2221                 case 'n':
2222                         open_flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
2223                         break;
2224 #ifndef READ_ONLY
2225                 case 'w':
2226                         open_flags |= EXT2_FLAG_RW;
2227                         break;
2228 #endif
2229                 case 'D':
2230                         open_flags |= EXT2_FLAG_DIRECT_IO;
2231                         break;
2232                 case 'b':
2233                         blocksize = parse_ulong(optarg, argv[0],
2234                                                 "block size", 0);
2235                         break;
2236                 case 's':
2237                         retval = strtoblk(argv[0], optarg,
2238                                           "superblock block number",
2239                                           &superblock);
2240                         if (retval)
2241                                 return 1;
2242                         break;
2243                 case 'c':
2244                         catastrophic = 1;
2245                         break;
2246                 case 'V':
2247                         /* Print version number and exit */
2248                         fprintf(stderr, "\tUsing %s\n",
2249                                 error_message(EXT2_ET_BASE));
2250                         exit(0);
2251                 default:
2252                         com_err(argv[0], 0, usage, debug_prog_name);
2253                         return 1;
2254                 }
2255         }
2256         if (optind < argc)
2257                 open_filesystem(argv[optind], open_flags,
2258                                 superblock, blocksize, catastrophic,
2259                                 data_filename);
2260
2261         sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2262                                        &debug_cmds, &retval);
2263         if (retval) {
2264                 ss_perror(sci_idx, retval, "creating invocation");
2265                 exit(1);
2266         }
2267         ss_get_readline(sci_idx);
2268
2269         (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
2270         if (retval) {
2271                 ss_perror(sci_idx, retval, "adding standard requests");
2272                 exit (1);
2273         }
2274         if (extra_cmds)
2275                 ss_add_request_table (sci_idx, extra_cmds, 1, &retval);
2276         if (retval) {
2277                 ss_perror(sci_idx, retval, "adding extra requests");
2278                 exit (1);
2279         }
2280         if (request) {
2281                 retval = 0;
2282                 retval = ss_execute_line(sci_idx, request);
2283                 if (retval) {
2284                         ss_perror(sci_idx, retval, request);
2285                         exit_status++;
2286                 }
2287         } else if (cmd_file) {
2288                 exit_status = source_file(cmd_file, sci_idx);
2289         } else {
2290                 ss_listen(sci_idx);
2291         }
2292
2293         ss_delete_invocation(sci_idx);
2294
2295         if (current_fs)
2296                 close_filesystem();
2297
2298         remove_error_table(&et_ext2_error_table);
2299         return exit_status;
2300 }