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         errcode_t err;
 553
 554         err = ext2fs_xattrs_open(current_fs, ino, &h);
 555         if (err)
 556                 return;
 557
 558         err = ext2fs_xattrs_read(h);
 559         if (err)
 560                 goto out;
 561
 562         if (ext2fs_xattrs_count(h) == 0)
 563                 goto out;
 564
 565         fprintf(out, "Extended attributes:\n");
 566         err = ext2fs_xattrs_iterate(h, dump_attr, out);
 567         if (err)
 568                 goto out;
 569
 570 out:
 571         err = ext2fs_xattrs_close(&h);
 572 }
 573
 574 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
 575 {
 576         struct list_blocks_struct lb;
 577
 578         fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
 579         lb.total = 0;
 580         lb.first_block = 0;
 581         lb.f = f;
 582         lb.first = 1;
 583         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
 584                               list_blocks_proc, (void *)&lb);
 585         finish_range(&lb);
 586         if (lb.total)
 587                 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
 588         fprintf(f,"\n");
 589 }
 590
 591 static int int_log10(unsigned long long arg)
 592 {
 593         int     l = 0;
 594
 595         arg = arg / 10;
 596         while (arg) {
 597                 l++;
 598                 arg = arg / 10;
 599         }
 600         return l;
 601 }
 602
 603 #define DUMP_LEAF_EXTENTS       0x01
 604 #define DUMP_NODE_EXTENTS       0x02
 605 #define DUMP_EXTENT_TABLE       0x04
 606
 607 static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino,
 608                          int flags, int logical_width, int physical_width)
 609 {
 610         ext2_extent_handle_t    handle;
 611         struct ext2fs_extent    extent;
 612         struct ext2_extent_info info;
 613         int                     op = EXT2_EXTENT_ROOT;
 614         unsigned int            printed = 0;
 615         errcode_t               errcode;
 616
 617         errcode = ext2fs_extent_open(current_fs, ino, &handle);
 618         if (errcode)
 619                 return;
 620
 621         if (flags & DUMP_EXTENT_TABLE)
 622                 fprintf(f, "Level Entries %*s %*s Length Flags\n",
 623                         (logical_width*2)+3, "Logical",
 624                         (physical_width*2)+3, "Physical");
 625         else
 626                 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix);
 627
 628         while (1) {
 629                 errcode = ext2fs_extent_get(handle, op, &extent);
 630
 631                 if (errcode)
 632                         break;
 633
 634                 op = EXT2_EXTENT_NEXT;
 635
 636                 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 637                         continue;
 638
 639                 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
 640                         if ((flags & DUMP_LEAF_EXTENTS) == 0)
 641                                 continue;
 642                 } else {
 643                         if ((flags & DUMP_NODE_EXTENTS) == 0)
 644                                 continue;
 645                 }
 646
 647                 errcode = ext2fs_extent_get_info(handle, &info);
 648                 if (errcode)
 649                         continue;
 650
 651                 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) {
 652                         if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 653                                 continue;
 654
 655                         if (flags & DUMP_EXTENT_TABLE) {
 656                                 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 657                                         "%*llu%*s %6u\n",
 658                                         info.curr_level, info.max_depth,
 659                                         info.curr_entry, info.num_entries,
 660                                         logical_width,
 661                                         extent.e_lblk,
 662                                         logical_width,
 663                                         extent.e_lblk + (extent.e_len - 1),
 664                                         physical_width,
 665                                         extent.e_pblk,
 666                                         physical_width+3, "", extent.e_len);
 667                                 continue;
 668                         }
 669
 670                         fprintf(f, "%s(ETB%d):%lld",
 671                                 printed ? ", " : "", info.curr_level,
 672                                 extent.e_pblk);
 673                         printed = 1;
 674                         continue;
 675                 }
 676
 677                 if (flags & DUMP_EXTENT_TABLE) {
 678                         fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 679                                 "%*llu - %*llu %6u %s\n",
 680                                 info.curr_level, info.max_depth,
 681                                 info.curr_entry, info.num_entries,
 682                                 logical_width,
 683                                 extent.e_lblk,
 684                                 logical_width,
 685                                 extent.e_lblk + (extent.e_len - 1),
 686                                 physical_width,
 687                                 extent.e_pblk,
 688                                 physical_width,
 689                                 extent.e_pblk + (extent.e_len - 1),
 690                                 extent.e_len,
 691                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 692                                         "Uninit" : "");
 693                         continue;
 694                 }
 695
 696                 if (extent.e_len == 0)
 697                         continue;
 698                 else if (extent.e_len == 1)
 699                         fprintf(f,
 700                                 "%s(%lld%s):%lld",
 701                                 printed ? ", " : "",
 702                                 extent.e_lblk,
 703                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 704                                 "[u]" : "",
 705                                 extent.e_pblk);
 706                 else
 707                         fprintf(f,
 708                                 "%s(%lld-%lld%s):%lld-%lld",
 709                                 printed ? ", " : "",
 710                                 extent.e_lblk,
 711                                 extent.e_lblk + (extent.e_len - 1),
 712                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 713                                         "[u]" : "",
 714                                 extent.e_pblk,
 715                                 extent.e_pblk + (extent.e_len - 1));
 716                 printed = 1;
 717         }
 718         if (printed)
 719                 fprintf(f, "\n");
 720 }
 721
 722 static void dump_inline_data(FILE *out, const char *prefix, ext2_ino_t inode_num)
 723 {
 724         errcode_t retval;
 725         size_t size;
 726
 727         retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
 728         if (!retval)
 729                 fprintf(out, "%sSize of inline data: %d", prefix, size);
 730 }
 731
 732 void internal_dump_inode(FILE *out, const char *prefix,
 733                          ext2_ino_t inode_num, struct ext2_inode *inode,
 734                          int do_dump_blocks)
 735 {
 736         const char *i_type;
 737         char frag, fsize;
 738         int os = current_fs->super->s_creator_os;
 739         struct ext2_inode_large *large_inode;
 740         int is_large_inode = 0;
 741
 742         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 743                 is_large_inode = 1;
 744         large_inode = (struct ext2_inode_large *) inode;
 745
 746         if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
 747         else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
 748         else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
 749         else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
 750         else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
 751         else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
 752         else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
 753         else i_type = "bad type";
 754         fprintf(out, "%sInode: %u   Type: %s    ", prefix, inode_num, i_type);
 755         fprintf(out, "%sMode:  %04o   Flags: 0x%x\n",
 756                 prefix, inode->i_mode & 0777, inode->i_flags);
 757         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 758                 fprintf(out, "%sGeneration: %u    Version: 0x%08x:%08x\n",
 759                         prefix, inode->i_generation, large_inode->i_version_hi,
 760                         inode->osd1.linux1.l_i_version);
 761         } else {
 762                 fprintf(out, "%sGeneration: %u    Version: 0x%08x\n", prefix,
 763                         inode->i_generation, inode->osd1.linux1.l_i_version);
 764         }
 765         fprintf(out, "%sUser: %5d   Group: %5d   Size: ",
 766                 prefix, inode_uid(*inode), inode_gid(*inode));
 767         if (LINUX_S_ISREG(inode->i_mode))
 768                 fprintf(out, "%llu\n", EXT2_I_SIZE(inode));
 769         else
 770                 fprintf(out, "%d\n", inode->i_size);
 771         if (os == EXT2_OS_HURD)
 772                 fprintf(out,
 773                         "%sFile ACL: %d    Directory ACL: %d Translator: %d\n",
 774                         prefix,
 775                         inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0,
 776                         inode->osd1.hurd1.h_i_translator);
 777         else
 778                 fprintf(out, "%sFile ACL: %llu    Directory ACL: %d\n",
 779                         prefix,
 780                         inode->i_file_acl | ((long long)
 781                                 (inode->osd2.linux2.l_i_file_acl_high) << 32),
 782                         LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0);
 783         if (os == EXT2_OS_LINUX)
 784                 fprintf(out, "%sLinks: %d   Blockcount: %llu\n",
 785                         prefix, inode->i_links_count,
 786                         (((unsigned long long)
 787                           inode->osd2.linux2.l_i_blocks_hi << 32)) +
 788                         inode->i_blocks);
 789         else
 790                 fprintf(out, "%sLinks: %d   Blockcount: %u\n",
 791                         prefix, inode->i_links_count, inode->i_blocks);
 792         switch (os) {
 793             case EXT2_OS_HURD:
 794                 frag = inode->osd2.hurd2.h_i_frag;
 795                 fsize = inode->osd2.hurd2.h_i_fsize;
 796                 break;
 797             default:
 798                 frag = fsize = 0;
 799         }
 800         fprintf(out, "%sFragment:  Address: %d    Number: %d    Size: %d\n",
 801                 prefix, inode->i_faddr, frag, fsize);
 802         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 803                 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
 804                         inode->i_ctime, large_inode->i_ctime_extra,
 805                         time_to_string(inode->i_ctime));
 806                 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
 807                         inode->i_atime, large_inode->i_atime_extra,
 808                         time_to_string(inode->i_atime));
 809                 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
 810                         inode->i_mtime, large_inode->i_mtime_extra,
 811                         time_to_string(inode->i_mtime));
 812                 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
 813                         large_inode->i_crtime, large_inode->i_crtime_extra,
 814                         time_to_string(large_inode->i_crtime));
 815         } else {
 816                 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
 817                         time_to_string(inode->i_ctime));
 818                 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
 819                         time_to_string(inode->i_atime));
 820                 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
 821                         time_to_string(inode->i_mtime));
 822         }
 823         if (inode->i_dtime)
 824           fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime,
 825                   time_to_string(inode->i_dtime));
 826         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 827                 internal_dump_inode_extra(out, prefix, inode_num,
 828                                           (struct ext2_inode_large *) inode);
 829         dump_inode_attributes(out, inode_num);
 830         if (current_fs->super->s_creator_os == EXT2_OS_LINUX &&
 831             current_fs->super->s_feature_ro_compat &
 832                 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) {
 833                 __u32 crc = inode->i_checksum_lo;
 834                 if (is_large_inode &&
 835                     large_inode->i_extra_isize >=
 836                                 (offsetof(struct ext2_inode_large,
 837                                           i_checksum_hi) -
 838                                  EXT2_GOOD_OLD_INODE_SIZE))
 839                         crc |= ((__u32)large_inode->i_checksum_hi) << 16;
 840                 fprintf(out, "Inode checksum: 0x%08x\n", crc);
 841         }
 842
 843         if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_inode_data_blocks(current_fs,inode) == 0)
 844                 fprintf(out, "%sFast_link_dest: %.*s\n", prefix,
 845                         (int) inode->i_size, (char *)inode->i_block);
 846         else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
 847                 int major, minor;
 848                 const char *devnote;
 849
 850                 if (inode->i_block[0]) {
 851                         major = (inode->i_block[0] >> 8) & 255;
 852                         minor = inode->i_block[0] & 255;
 853                         devnote = "";
 854                 } else {
 855                         major = (inode->i_block[1] & 0xfff00) >> 8;
 856                         minor = ((inode->i_block[1] & 0xff) |
 857                                  ((inode->i_block[1] >> 12) & 0xfff00));
 858                         devnote = "(New-style) ";
 859                 }
 860                 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
 861                         devnote, major, minor, major, minor);
 862         } else if (do_dump_blocks) {
 863                 if (inode->i_flags & EXT4_EXTENTS_FL)
 864                         dump_extents(out, prefix, inode_num,
 865                                      DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0);
 866                 else if (inode->i_flags & EXT4_INLINE_DATA_FL)
 867                         dump_inline_data(out, prefix, inode_num);
 868                 else
 869                         dump_blocks(out, prefix, inode_num);
 870         }
 871 }
 872
 873 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
 874 {
 875         FILE    *out;
 876
 877         out = open_pager();
 878         internal_dump_inode(out, "", inode_num, inode, 1);
 879         close_pager(out);
 880 }
 881
 882 void do_stat(int argc, char *argv[])
 883 {
 884         ext2_ino_t      inode;
 885         struct ext2_inode * inode_buf;
 886
 887         if (check_fs_open(argv[0]))
 888                 return;
 889
 890         inode_buf = (struct ext2_inode *)
 891                         malloc(EXT2_INODE_SIZE(current_fs->super));
 892         if (!inode_buf) {
 893                 fprintf(stderr, "do_stat: can't allocate buffer\n");
 894                 return;
 895         }
 896
 897         if (common_inode_args_process(argc, argv, &inode, 0)) {
 898                 free(inode_buf);
 899                 return;
 900         }
 901
 902         if (debugfs_read_inode_full(inode, inode_buf, argv[0],
 903                                         EXT2_INODE_SIZE(current_fs->super))) {
 904                 free(inode_buf);
 905                 return;
 906         }
 907
 908         dump_inode(inode, inode_buf);
 909         free(inode_buf);
 910         return;
 911 }
 912
 913 void do_dump_extents(int argc, char **argv)
 914 {
 915         struct ext2_inode inode;
 916         ext2_ino_t      ino;
 917         FILE            *out;
 918         int             c, flags = 0;
 919         int             logical_width;
 920         int             physical_width;
 921
 922         reset_getopt();
 923         while ((c = getopt(argc, argv, "nl")) != EOF) {
 924                 switch (c) {
 925                 case 'n':
 926                         flags |= DUMP_NODE_EXTENTS;
 927                         break;
 928                 case 'l':
 929                         flags |= DUMP_LEAF_EXTENTS;
 930                         break;
 931                 }
 932         }
 933
 934         if (argc != optind + 1) {
 935                 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
 936                 return;
 937         }
 938
 939         if (flags == 0)
 940                 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
 941         flags |= DUMP_EXTENT_TABLE;
 942
 943         if (check_fs_open(argv[0]))
 944                 return;
 945
 946         ino = string_to_inode(argv[optind]);
 947         if (ino == 0)
 948                 return;
 949
 950         if (debugfs_read_inode(ino, &inode, argv[0]))
 951                 return;
 952
 953         if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
 954                 fprintf(stderr, "%s: does not uses extent block maps\n",
 955                         argv[optind]);
 956                 return;
 957         }
 958
 959         logical_width = int_log10((EXT2_I_SIZE(&inode)+current_fs->blocksize-1)/
 960                                   current_fs->blocksize) + 1;
 961         if (logical_width < 5)
 962                 logical_width = 5;
 963         physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1;
 964         if (physical_width < 5)
 965                 physical_width = 5;
 966
 967         out = open_pager();
 968         dump_extents(out, "", ino, flags, logical_width, physical_width);
 969         close_pager(out);
 970         return;
 971 }
 972
 973 static int print_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
 974                              blk64_t *blocknr,
 975                              e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
 976                              blk64_t ref_block EXT2FS_ATTR((unused)),
 977                              int ref_offset EXT2FS_ATTR((unused)),
 978                              void *private EXT2FS_ATTR((unused)))
 979 {
 980         printf("%llu ", *blocknr);
 981         return 0;
 982 }
 983
 984 void do_blocks(int argc, char *argv[])
 985 {
 986         ext2_ino_t      inode;
 987
 988         if (check_fs_open(argv[0]))
 989                 return;
 990
 991         if (common_inode_args_process(argc, argv, &inode, 0)) {
 992                 return;
 993         }
 994
 995         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
 996                               print_blocks_proc, NULL);
 997         fputc('\n', stdout);
 998         return;
 999 }
1000
1001 void do_chroot(int argc, char *argv[])
1002 {
1003         ext2_ino_t inode;
1004         int retval;
1005
1006         if (common_inode_args_process(argc, argv, &inode, 0))
1007                 return;
1008
1009         retval = ext2fs_check_directory(current_fs, inode);
1010         if (retval)  {
1011                 com_err(argv[1], retval, 0);
1012                 return;
1013         }
1014         root = inode;
1015 }
1016
1017 #ifndef READ_ONLY
1018 void do_clri(int argc, char *argv[])
1019 {
1020         ext2_ino_t inode;
1021         struct ext2_inode inode_buf;
1022
1023         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1024                 return;
1025
1026         if (debugfs_read_inode(inode, &inode_buf, argv[0]))
1027                 return;
1028         memset(&inode_buf, 0, sizeof(inode_buf));
1029         if (debugfs_write_inode(inode, &inode_buf, argv[0]))
1030                 return;
1031 }
1032
1033 void do_freei(int argc, char *argv[])
1034 {
1035         unsigned int    len = 1;
1036         int             err = 0;
1037         ext2_ino_t      inode;
1038
1039         if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1040                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1041                 return;
1042         if (check_fs_read_write(argv[0]))
1043                 return;
1044
1045         inode = string_to_inode(argv[1]);
1046         if (!inode)
1047                 return;
1048
1049         if (argc == 3) {
1050                 len = parse_ulong(argv[2], argv[0], "length", &err);
1051                 if (err)
1052                         return;
1053         }
1054
1055         if (len == 1 &&
1056             !ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1057                 com_err(argv[0], 0, "Warning: inode already clear");
1058         while (len-- > 0)
1059                 ext2fs_unmark_inode_bitmap2(current_fs->inode_map, inode++);
1060         ext2fs_mark_ib_dirty(current_fs);
1061 }
1062
1063 void do_seti(int argc, char *argv[])
1064 {
1065         unsigned int    len = 1;
1066         int             err = 0;
1067         ext2_ino_t      inode;
1068
1069         if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1070                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1071                 return;
1072         if (check_fs_read_write(argv[0]))
1073                 return;
1074
1075         inode = string_to_inode(argv[1]);
1076         if (!inode)
1077                 return;
1078
1079         if (argc == 3) {
1080                 len = parse_ulong(argv[2], argv[0], "length", &err);
1081                 if (err)
1082                         return;
1083         }
1084
1085         if ((len == 1) &&
1086             ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1087                 com_err(argv[0], 0, "Warning: inode already set");
1088         while (len-- > 0)
1089                 ext2fs_mark_inode_bitmap2(current_fs->inode_map, inode++);
1090         ext2fs_mark_ib_dirty(current_fs);
1091 }
1092 #endif /* READ_ONLY */
1093
1094 void do_testi(int argc, char *argv[])
1095 {
1096         ext2_ino_t inode;
1097
1098         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
1099                 return;
1100
1101         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1102                 printf("Inode %u is marked in use\n", inode);
1103         else
1104                 printf("Inode %u is not in use\n", inode);
1105 }
1106
1107 #ifndef READ_ONLY
1108 void do_freeb(int argc, char *argv[])
1109 {
1110         blk64_t block;
1111         blk64_t count = 1;
1112
1113         if (common_block_args_process(argc, argv, &block, &count))
1114                 return;
1115         if (check_fs_read_write(argv[0]))
1116                 return;
1117         while (count-- > 0) {
1118                 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
1119                         com_err(argv[0], 0, "Warning: block %llu already clear",
1120                                 block);
1121                 ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
1122                 block++;
1123         }
1124         ext2fs_mark_bb_dirty(current_fs);
1125 }
1126
1127 void do_setb(int argc, char *argv[])
1128 {
1129         blk64_t block;
1130         blk64_t count = 1;
1131
1132         if (common_block_args_process(argc, argv, &block, &count))
1133                 return;
1134         if (check_fs_read_write(argv[0]))
1135                 return;
1136         while (count-- > 0) {
1137                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1138                         com_err(argv[0], 0, "Warning: block %llu already set",
1139                                 block);
1140                 ext2fs_mark_block_bitmap2(current_fs->block_map,block);
1141                 block++;
1142         }
1143         ext2fs_mark_bb_dirty(current_fs);
1144 }
1145 #endif /* READ_ONLY */
1146
1147 void do_testb(int argc, char *argv[])
1148 {
1149         blk64_t block;
1150         blk64_t count = 1;
1151
1152         if (common_block_args_process(argc, argv, &block, &count))
1153                 return;
1154         while (count-- > 0) {
1155                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1156                         printf("Block %llu marked in use\n", block);
1157                 else
1158                         printf("Block %llu not in use\n", block);
1159                 block++;
1160         }
1161 }
1162
1163 #ifndef READ_ONLY
1164 static void modify_u8(char *com, const char *prompt,
1165                       const char *format, __u8 *val)
1166 {
1167         char buf[200];
1168         unsigned long v;
1169         char *tmp;
1170
1171         sprintf(buf, format, *val);
1172         printf("%30s    [%s] ", prompt, buf);
1173         if (!fgets(buf, sizeof(buf), stdin))
1174                 return;
1175         if (buf[strlen (buf) - 1] == '\n')
1176                 buf[strlen (buf) - 1] = '\0';
1177         if (!buf[0])
1178                 return;
1179         v = strtoul(buf, &tmp, 0);
1180         if (*tmp)
1181                 com_err(com, 0, "Bad value - %s", buf);
1182         else
1183                 *val = v;
1184 }
1185
1186 static void modify_u16(char *com, const char *prompt,
1187                        const char *format, __u16 *val)
1188 {
1189         char buf[200];
1190         unsigned long v;
1191         char *tmp;
1192
1193         sprintf(buf, format, *val);
1194         printf("%30s    [%s] ", prompt, buf);
1195         if (!fgets(buf, sizeof(buf), stdin))
1196                 return;
1197         if (buf[strlen (buf) - 1] == '\n')
1198                 buf[strlen (buf) - 1] = '\0';
1199         if (!buf[0])
1200                 return;
1201         v = strtoul(buf, &tmp, 0);
1202         if (*tmp)
1203                 com_err(com, 0, "Bad value - %s", buf);
1204         else
1205                 *val = v;
1206 }
1207
1208 static void modify_u32(char *com, const char *prompt,
1209                        const char *format, __u32 *val)
1210 {
1211         char buf[200];
1212         unsigned long v;
1213         char *tmp;
1214
1215         sprintf(buf, format, *val);
1216         printf("%30s    [%s] ", prompt, buf);
1217         if (!fgets(buf, sizeof(buf), stdin))
1218                 return;
1219         if (buf[strlen (buf) - 1] == '\n')
1220                 buf[strlen (buf) - 1] = '\0';
1221         if (!buf[0])
1222                 return;
1223         v = strtoul(buf, &tmp, 0);
1224         if (*tmp)
1225                 com_err(com, 0, "Bad value - %s", buf);
1226         else
1227                 *val = v;
1228 }
1229
1230
1231 void do_modify_inode(int argc, char *argv[])
1232 {
1233         struct ext2_inode inode;
1234         ext2_ino_t      inode_num;
1235         int             i;
1236         unsigned char   *frag, *fsize;
1237         char            buf[80];
1238         int             os;
1239         const char      *hex_format = "0x%x";
1240         const char      *octal_format = "0%o";
1241         const char      *decimal_format = "%d";
1242         const char      *unsignedlong_format = "%lu";
1243
1244         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1245                 return;
1246
1247         os = current_fs->super->s_creator_os;
1248
1249         if (debugfs_read_inode(inode_num, &inode, argv[1]))
1250                 return;
1251
1252         modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1253         modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1254         modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1255         modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1256         modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1257         modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1258         modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1259         modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1260         modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1261         if (os == EXT2_OS_LINUX)
1262                 modify_u16(argv[0], "Block count high", unsignedlong_format,
1263                            &inode.osd2.linux2.l_i_blocks_hi);
1264         modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1265         modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1266         modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1267 #if 0
1268         modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1269 #endif
1270         modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1271         if (LINUX_S_ISDIR(inode.i_mode))
1272                 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
1273         else
1274                 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
1275
1276         if (os == EXT2_OS_HURD)
1277                 modify_u32(argv[0], "Translator Block",
1278                             decimal_format, &inode.osd1.hurd1.h_i_translator);
1279
1280         modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1281         switch (os) {
1282             case EXT2_OS_HURD:
1283                 frag = &inode.osd2.hurd2.h_i_frag;
1284                 fsize = &inode.osd2.hurd2.h_i_fsize;
1285                 break;
1286             default:
1287                 frag = fsize = 0;
1288         }
1289         if (frag)
1290                 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1291         if (fsize)
1292                 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1293
1294         for (i=0;  i < EXT2_NDIR_BLOCKS; i++) {
1295                 sprintf(buf, "Direct Block #%d", i);
1296                 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1297         }
1298         modify_u32(argv[0], "Indirect Block", decimal_format,
1299                     &inode.i_block[EXT2_IND_BLOCK]);
1300         modify_u32(argv[0], "Double Indirect Block", decimal_format,
1301                     &inode.i_block[EXT2_DIND_BLOCK]);
1302         modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1303                     &inode.i_block[EXT2_TIND_BLOCK]);
1304         if (debugfs_write_inode(inode_num, &inode, argv[1]))
1305                 return;
1306 }
1307 #endif /* READ_ONLY */
1308
1309 void do_change_working_dir(int argc, char *argv[])
1310 {
1311         ext2_ino_t      inode;
1312         int             retval;
1313
1314         if (common_inode_args_process(argc, argv, &inode, 0))
1315                 return;
1316
1317         retval = ext2fs_check_directory(current_fs, inode);
1318         if (retval) {
1319                 com_err(argv[1], retval, 0);
1320                 return;
1321         }
1322         cwd = inode;
1323         return;
1324 }
1325
1326 void do_print_working_directory(int argc, char *argv[])
1327 {
1328         int     retval;
1329         char    *pathname = NULL;
1330
1331         if (common_args_process(argc, argv, 1, 1,
1332                                 "print_working_directory", "", 0))
1333                 return;
1334
1335         retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1336         if (retval) {
1337                 com_err(argv[0], retval,
1338                         "while trying to get pathname of cwd");
1339         }
1340         printf("[pwd]   INODE: %6u  PATH: %s\n",
1341                cwd, pathname ? pathname : "NULL");
1342         if (pathname) {
1343                 free(pathname);
1344                 pathname = NULL;
1345         }
1346         retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1347         if (retval) {
1348                 com_err(argv[0], retval,
1349                         "while trying to get pathname of root");
1350         }
1351         printf("[root]  INODE: %6u  PATH: %s\n",
1352                root, pathname ? pathname : "NULL");
1353         if (pathname) {
1354                 free(pathname);
1355                 pathname = NULL;
1356         }
1357         return;
1358 }
1359
1360 #ifndef READ_ONLY
1361 static void make_link(char *sourcename, char *destname)
1362 {
1363         ext2_ino_t      ino;
1364         struct ext2_inode inode;
1365         int             retval;
1366         ext2_ino_t      dir;
1367         char            *dest, *cp, *base_name;
1368
1369         /*
1370          * Get the source inode
1371          */
1372         ino = string_to_inode(sourcename);
1373         if (!ino)
1374                 return;
1375         base_name = strrchr(sourcename, '/');
1376         if (base_name)
1377                 base_name++;
1378         else
1379                 base_name = sourcename;
1380         /*
1381          * Figure out the destination.  First see if it exists and is
1382          * a directory.
1383          */
1384         if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1385                 dest = base_name;
1386         else {
1387                 /*
1388                  * OK, it doesn't exist.  See if it is
1389                  * '<dir>/basename' or 'basename'
1390                  */
1391                 cp = strrchr(destname, '/');
1392                 if (cp) {
1393                         *cp = 0;
1394                         dir = string_to_inode(destname);
1395                         if (!dir)
1396                                 return;
1397                         dest = cp+1;
1398                 } else {
1399                         dir = cwd;
1400                         dest = destname;
1401                 }
1402         }
1403
1404         if (debugfs_read_inode(ino, &inode, sourcename))
1405                 return;
1406
1407         retval = ext2fs_link(current_fs, dir, dest, ino,
1408                              ext2_file_type(inode.i_mode));
1409         if (retval)
1410                 com_err("make_link", retval, 0);
1411         return;
1412 }
1413
1414
1415 void do_link(int argc, char *argv[])
1416 {
1417         if (common_args_process(argc, argv, 3, 3, "link",
1418                                 "<source file> <dest_name>", CHECK_FS_RW))
1419                 return;
1420
1421         make_link(argv[1], argv[2]);
1422 }
1423
1424 static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1425                             e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1426                             blk64_t ref_block EXT2FS_ATTR((unused)),
1427                             int ref_offset EXT2FS_ATTR((unused)),
1428                             void *private EXT2FS_ATTR((unused)))
1429 {
1430         blk64_t block;
1431
1432         block = *blocknr;
1433         ext2fs_block_alloc_stats2(fs, block, +1);
1434         return 0;
1435 }
1436
1437 void do_undel(int argc, char *argv[])
1438 {
1439         ext2_ino_t      ino;
1440         struct ext2_inode inode;
1441
1442         if (common_args_process(argc, argv, 2, 3, "undelete",
1443                                 "<inode_num> [dest_name]",
1444                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1445                 return;
1446
1447         ino = string_to_inode(argv[1]);
1448         if (!ino)
1449                 return;
1450
1451         if (debugfs_read_inode(ino, &inode, argv[1]))
1452                 return;
1453
1454         if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
1455                 com_err(argv[1], 0, "Inode is not marked as deleted");
1456                 return;
1457         }
1458
1459         /*
1460          * XXX this function doesn't handle changing the links count on the
1461          * parent directory when undeleting a directory.
1462          */
1463         inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1464         inode.i_dtime = 0;
1465
1466         if (debugfs_write_inode(ino, &inode, argv[0]))
1467                 return;
1468
1469         ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1470                               mark_blocks_proc, NULL);
1471
1472         ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1473
1474         if (argc > 2)
1475                 make_link(argv[1], argv[2]);
1476 }
1477
1478 static void unlink_file_by_name(char *filename)
1479 {
1480         int             retval;
1481         ext2_ino_t      dir;
1482         char            *base_name;
1483
1484         base_name = strrchr(filename, '/');
1485         if (base_name) {
1486                 *base_name++ = '\0';
1487                 dir = string_to_inode(filename);
1488                 if (!dir)
1489                         return;
1490         } else {
1491                 dir = cwd;
1492                 base_name = filename;
1493         }
1494         retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1495         if (retval)
1496                 com_err("unlink_file_by_name", retval, 0);
1497         return;
1498 }
1499
1500 void do_unlink(int argc, char *argv[])
1501 {
1502         if (common_args_process(argc, argv, 2, 2, "link",
1503                                 "<pathname>", CHECK_FS_RW))
1504                 return;
1505
1506         unlink_file_by_name(argv[1]);
1507 }
1508 #endif /* READ_ONLY */
1509
1510 void do_find_free_block(int argc, char *argv[])
1511 {
1512         blk64_t free_blk, goal, first_free = 0;
1513         int             count;
1514         errcode_t       retval;
1515         char            *tmp;
1516
1517         if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1518                 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1519                 return;
1520         }
1521         if (check_fs_open(argv[0]))
1522                 return;
1523
1524         if (argc > 1) {
1525                 count = strtol(argv[1],&tmp,0);
1526                 if (*tmp) {
1527                         com_err(argv[0], 0, "Bad count - %s", argv[1]);
1528                         return;
1529                 }
1530         } else
1531                 count = 1;
1532
1533         if (argc > 2) {
1534                 goal = strtol(argv[2], &tmp, 0);
1535                 if (*tmp) {
1536                         com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1537                         return;
1538                 }
1539         }
1540         else
1541                 goal = current_fs->super->s_first_data_block;
1542
1543         printf("Free blocks found: ");
1544         free_blk = goal - 1;
1545         while (count-- > 0) {
1546                 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
1547                                            &free_blk);
1548                 if (first_free) {
1549                         if (first_free == free_blk)
1550                                 break;
1551                 } else
1552                         first_free = free_blk;
1553                 if (retval) {
1554                         com_err("ext2fs_new_block", retval, 0);
1555                         return;
1556                 } else
1557                         printf("%llu ", free_blk);
1558         }
1559         printf("\n");
1560 }
1561
1562 void do_find_free_inode(int argc, char *argv[])
1563 {
1564         ext2_ino_t      free_inode, dir;
1565         int             mode;
1566         int             retval;
1567         char            *tmp;
1568
1569         if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1570                 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
1571                 return;
1572         }
1573         if (check_fs_open(argv[0]))
1574                 return;
1575
1576         if (argc > 1) {
1577                 dir = strtol(argv[1], &tmp, 0);
1578                 if (*tmp) {
1579                         com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1580                         return;
1581                 }
1582         }
1583         else
1584                 dir = root;
1585         if (argc > 2) {
1586                 mode = strtol(argv[2], &tmp, 0);
1587                 if (*tmp) {
1588                         com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1589                         return;
1590                 }
1591         } else
1592                 mode = 010755;
1593
1594         retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1595         if (retval)
1596                 com_err("ext2fs_new_inode", retval, 0);
1597         else
1598                 printf("Free inode found: %u\n", free_inode);
1599 }
1600
1601 #ifndef READ_ONLY
1602 void do_write(int argc, char *argv[])
1603 {
1604         errcode_t       retval;
1605
1606         if (common_args_process(argc, argv, 3, 3, "write",
1607                                 "<native file> <new file>", CHECK_FS_RW))
1608                 return;
1609
1610         retval = do_write_internal(current_fs, cwd, argv[1], argv[2], root);
1611         if (retval)
1612                 com_err(argv[0], retval, 0);
1613 }
1614
1615 void do_mknod(int argc, char *argv[])
1616 {
1617         unsigned long   mode, major, minor;
1618         errcode_t       retval;
1619         int             filetype, nr;
1620         struct stat     st;
1621
1622         if (check_fs_open(argv[0]))
1623                 return;
1624         if (argc < 3 || argv[2][1]) {
1625         usage:
1626                 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1627                 return;
1628         }
1629
1630         mode = minor = major = 0;
1631         switch (argv[2][0]) {
1632                 case 'p':
1633                         st.st_mode = S_IFIFO;
1634                         nr = 3;
1635                         break;
1636                 case 'c':
1637                         st.st_mode = S_IFCHR;
1638                         nr = 5;
1639                         break;
1640                 case 'b':
1641                         st.st_mode = S_IFBLK;
1642                         nr = 5;
1643                         break;
1644                 default:
1645                         nr = 0;
1646         }
1647
1648         if (nr == 5) {
1649                 major = strtoul(argv[3], argv+3, 0);
1650                 minor = strtoul(argv[4], argv+4, 0);
1651                 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1652                         nr = 0;
1653         }
1654
1655         if (argc != nr)
1656                 goto usage;
1657
1658         st.st_rdev = makedev(major, minor);
1659         retval = do_mknod_internal(current_fs, cwd, argv[1], &st);
1660         if (retval)
1661                 com_err(argv[0], retval, 0);
1662 }
1663
1664 void do_mkdir(int argc, char *argv[])
1665 {
1666         errcode_t retval;
1667
1668         if (common_args_process(argc, argv, 2, 2, "mkdir",
1669                                 "<filename>", CHECK_FS_RW))
1670                 return;
1671
1672         retval = do_mkdir_internal(current_fs, cwd, argv[1], NULL, root);
1673         if (retval)
1674                 com_err(argv[0], retval, 0);
1675
1676 }
1677
1678 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1679                                e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1680                                blk64_t ref_block EXT2FS_ATTR((unused)),
1681                                int ref_offset EXT2FS_ATTR((unused)),
1682                                void *private EXT2FS_ATTR((unused)))
1683 {
1684         blk64_t block;
1685
1686         block = *blocknr;
1687         ext2fs_block_alloc_stats2(fs, block, -1);
1688         return 0;
1689 }
1690
1691 static void kill_file_by_inode(ext2_ino_t inode)
1692 {
1693         struct ext2_inode inode_buf;
1694
1695         if (debugfs_read_inode(inode, &inode_buf, 0))
1696                 return;
1697         inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1698         if (debugfs_write_inode(inode, &inode_buf, 0))
1699                 return;
1700         if (ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf)) {
1701                 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY,
1702                                       NULL, release_blocks_proc, NULL);
1703         }
1704         printf("\n");
1705         ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1706                                   LINUX_S_ISDIR(inode_buf.i_mode));
1707 }
1708
1709
1710 void do_kill_file(int argc, char *argv[])
1711 {
1712         ext2_ino_t inode_num;
1713
1714         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1715                 return;
1716
1717         kill_file_by_inode(inode_num);
1718 }
1719
1720 void do_rm(int argc, char *argv[])
1721 {
1722         int retval;
1723         ext2_ino_t inode_num;
1724         struct ext2_inode inode;
1725
1726         if (common_args_process(argc, argv, 2, 2, "rm",
1727                                 "<filename>", CHECK_FS_RW))
1728                 return;
1729
1730         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1731         if (retval) {
1732                 com_err(argv[0], retval, "while trying to resolve filename");
1733                 return;
1734         }
1735
1736         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1737                 return;
1738
1739         if (LINUX_S_ISDIR(inode.i_mode)) {
1740                 com_err(argv[0], 0, "file is a directory");
1741                 return;
1742         }
1743
1744         --inode.i_links_count;
1745         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1746                 return;
1747
1748         unlink_file_by_name(argv[1]);
1749         if (inode.i_links_count == 0)
1750                 kill_file_by_inode(inode_num);
1751 }
1752
1753 struct rd_struct {
1754         ext2_ino_t      parent;
1755         int             empty;
1756 };
1757
1758 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1759                       int       entry EXT2FS_ATTR((unused)),
1760                       struct ext2_dir_entry *dirent,
1761                       int       offset EXT2FS_ATTR((unused)),
1762                       int       blocksize EXT2FS_ATTR((unused)),
1763                       char      *buf EXT2FS_ATTR((unused)),
1764                       void      *private)
1765 {
1766         struct rd_struct *rds = (struct rd_struct *) private;
1767
1768         if (dirent->inode == 0)
1769                 return 0;
1770         if ((ext2fs_dirent_name_len(dirent) == 1) && (dirent->name[0] == '.'))
1771                 return 0;
1772         if ((ext2fs_dirent_name_len(dirent) == 2) && (dirent->name[0] == '.') &&
1773             (dirent->name[1] == '.')) {
1774                 rds->parent = dirent->inode;
1775                 return 0;
1776         }
1777         rds->empty = 0;
1778         return 0;
1779 }
1780
1781 void do_rmdir(int argc, char *argv[])
1782 {
1783         int retval;
1784         ext2_ino_t inode_num;
1785         struct ext2_inode inode;
1786         struct rd_struct rds;
1787
1788         if (common_args_process(argc, argv, 2, 2, "rmdir",
1789                                 "<filename>", CHECK_FS_RW))
1790                 return;
1791
1792         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1793         if (retval) {
1794                 com_err(argv[0], retval, "while trying to resolve filename");
1795                 return;
1796         }
1797
1798         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1799                 return;
1800
1801         if (!LINUX_S_ISDIR(inode.i_mode)) {
1802                 com_err(argv[0], 0, "file is not a directory");
1803                 return;
1804         }
1805
1806         rds.parent = 0;
1807         rds.empty = 1;
1808
1809         retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1810                                     0, rmdir_proc, &rds);
1811         if (retval) {
1812                 com_err(argv[0], retval, "while iterating over directory");
1813                 return;
1814         }
1815         if (rds.empty == 0) {
1816                 com_err(argv[0], 0, "directory not empty");
1817                 return;
1818         }
1819
1820         inode.i_links_count = 0;
1821         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1822                 return;
1823
1824         unlink_file_by_name(argv[1]);
1825         kill_file_by_inode(inode_num);
1826
1827         if (rds.parent) {
1828                 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
1829                         return;
1830                 if (inode.i_links_count > 1)
1831                         inode.i_links_count--;
1832                 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
1833                         return;
1834         }
1835 }
1836 #endif /* READ_ONLY */
1837
1838 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
1839                             char *argv[] EXT2FS_ATTR((unused)))
1840 {
1841         if (current_fs)
1842                 printf("Open mode: read-%s\n",
1843                        current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
1844         printf("Filesystem in use: %s\n",
1845                current_fs ? current_fs->device_name : "--none--");
1846 }
1847
1848 #ifndef READ_ONLY
1849 void do_expand_dir(int argc, char *argv[])
1850 {
1851         ext2_ino_t inode;
1852         int retval;
1853
1854         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1855                 return;
1856
1857         retval = ext2fs_expand_dir(current_fs, inode);
1858         if (retval)
1859                 com_err("ext2fs_expand_dir", retval, 0);
1860         return;
1861 }
1862
1863 void do_features(int argc, char *argv[])
1864 {
1865         int     i;
1866
1867         if (check_fs_open(argv[0]))
1868                 return;
1869
1870         if ((argc != 1) && check_fs_read_write(argv[0]))
1871                 return;
1872         for (i=1; i < argc; i++) {
1873                 if (e2p_edit_feature(argv[i],
1874                                      &current_fs->super->s_feature_compat, 0))
1875                         com_err(argv[0], 0, "Unknown feature: %s\n",
1876                                 argv[i]);
1877                 else
1878                         ext2fs_mark_super_dirty(current_fs);
1879         }
1880         print_features(current_fs->super, stdout);
1881 }
1882 #endif /* READ_ONLY */
1883
1884 void do_bmap(int argc, char *argv[])
1885 {
1886         ext2_ino_t      ino;
1887         blk64_t         blk, pblk;
1888         int             err;
1889         errcode_t       errcode;
1890
1891         if (common_args_process(argc, argv, 3, 3, argv[0],
1892                                 "<file> logical_blk", 0))
1893                 return;
1894
1895         ino = string_to_inode(argv[1]);
1896         if (!ino)
1897                 return;
1898         err = strtoblk(argv[0], argv[2], "logical block", &blk);
1899         if (err)
1900                 return;
1901
1902         errcode = ext2fs_bmap2(current_fs, ino, 0, 0, 0, blk, 0, &pblk);
1903         if (errcode) {
1904                 com_err(argv[0], errcode,
1905                         "while mapping logical block %llu\n", blk);
1906                 return;
1907         }
1908         printf("%llu\n", pblk);
1909 }
1910
1911 void do_imap(int argc, char *argv[])
1912 {
1913         ext2_ino_t      ino;
1914         unsigned long   group, block, block_nr, offset;
1915
1916         if (common_args_process(argc, argv, 2, 2, argv[0],
1917                                 "<file>", 0))
1918                 return;
1919         ino = string_to_inode(argv[1]);
1920         if (!ino)
1921                 return;
1922
1923         group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
1924         offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
1925                 EXT2_INODE_SIZE(current_fs->super);
1926         block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
1927         if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
1928                 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
1929                         group);
1930                 return;
1931         }
1932         block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
1933                 block;
1934         offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
1935
1936         printf("Inode %d is part of block group %lu\n"
1937                "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
1938                block_nr, offset);
1939
1940 }
1941
1942 #ifndef READ_ONLY
1943 void do_set_current_time(int argc, char *argv[])
1944 {
1945         time_t now;
1946
1947         if (common_args_process(argc, argv, 2, 2, argv[0],
1948                                 "<time>", 0))
1949                 return;
1950
1951         now = string_to_time(argv[1]);
1952         if (now == ((time_t) -1)) {
1953                 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
1954                         argv[1]);
1955                 return;
1956
1957         } else {
1958                 printf("Setting current time to %s\n", time_to_string(now));
1959                 current_fs->now = now;
1960         }
1961 }
1962 #endif /* READ_ONLY */
1963
1964 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
1965 {
1966         int compat, bit, ret;
1967         unsigned int feature_mask;
1968
1969         if (name) {
1970                 if (feature_type == E2P_FS_FEATURE)
1971                         ret = e2p_string2feature(name, &compat, &feature_mask);
1972                 else
1973                         ret = e2p_jrnl_string2feature(name, &compat,
1974                                                       &feature_mask);
1975                 if (ret)
1976                         return ret;
1977
1978                 if (!(supp[compat] & feature_mask))
1979                         return 1;
1980         } else {
1981                 for (compat = 0; compat < 3; compat++) {
1982                         for (bit = 0, feature_mask = 1; bit < 32;
1983                              bit++, feature_mask <<= 1) {
1984                                 if (supp[compat] & feature_mask) {
1985                                         if (feature_type == E2P_FS_FEATURE)
1986                                                 fprintf(stdout, " %s",
1987                                                 e2p_feature2string(compat,
1988                                                 feature_mask));
1989                                         else
1990                                                 fprintf(stdout, " %s",
1991                                                 e2p_jrnl_feature2string(compat,
1992                                                 feature_mask));
1993                                 }
1994                         }
1995                 }
1996                 fprintf(stdout, "\n");
1997         }
1998
1999         return 0;
2000 }
2001
2002 void do_supported_features(int argc, char *argv[])
2003 {
2004         int     ret;
2005         __u32   supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2006                             EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2007                             EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2008         __u32   jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES,
2009                                  JFS_KNOWN_INCOMPAT_FEATURES,
2010                                  JFS_KNOWN_ROCOMPAT_FEATURES };
2011
2012         if (argc > 1) {
2013                 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2014                 if (ret) {
2015                         ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2016                                                 argv[1]);
2017                 }
2018                 if (ret)
2019                         com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2020                 else
2021                         fprintf(stdout, "Supported feature: %s\n", argv[1]);
2022         } else {
2023                 fprintf(stdout, "Supported features:");
2024                 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2025                 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2026         }
2027 }
2028
2029 #ifndef READ_ONLY
2030 void do_punch(int argc, char *argv[])
2031 {
2032         ext2_ino_t      ino;
2033         blk64_t         start, end;
2034         int             err;
2035         errcode_t       errcode;
2036
2037         if (common_args_process(argc, argv, 3, 4, argv[0],
2038                                 "<file> start_blk [end_blk]",
2039                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
2040                 return;
2041
2042         ino = string_to_inode(argv[1]);
2043         if (!ino)
2044                 return;
2045         err = strtoblk(argv[0], argv[2], "logical block", &start);
2046         if (err)
2047                 return;
2048         if (argc == 4) {
2049                 err = strtoblk(argv[0], argv[3], "logical block", &end);
2050                 if (err)
2051                         return;
2052         } else
2053                 end = ~0;
2054
2055         errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
2056
2057         if (errcode) {
2058                 com_err(argv[0], errcode,
2059                         "while truncating inode %u from %llu to %llu\n", ino,
2060                         (unsigned long long) start, (unsigned long long) end);
2061                 return;
2062         }
2063 }
2064 #endif /* READ_ONLY */
2065
2066 void do_symlink(int argc, char *argv[])
2067 {
2068         errcode_t       retval;
2069
2070         if (common_args_process(argc, argv, 3, 3, "symlink",
2071                                 "<filename> <target>", CHECK_FS_RW))
2072                 return;
2073
2074         retval = do_symlink_internal(current_fs, cwd, argv[1], argv[2], root);
2075         if (retval)
2076                 com_err(argv[0], retval, 0);
2077
2078 }
2079
2080 void do_dump_mmp(int argc EXT2FS_ATTR((unused)), char *argv[])
2081 {
2082 #if CONFIG_MMP
2083         struct ext2_super_block *sb;
2084         struct mmp_struct *mmp_s;
2085         time_t t;
2086         errcode_t retval = 0;
2087
2088         if (check_fs_open(argv[0]))
2089                 return;
2090
2091         sb  = current_fs->super;
2092
2093         if (current_fs->mmp_buf == NULL) {
2094                 retval = ext2fs_get_mem(current_fs->blocksize,
2095                                         &current_fs->mmp_buf);
2096                 if (retval) {
2097                         com_err(argv[0], retval, "allocating MMP buffer.\n");
2098                         return;
2099                 }
2100         }
2101
2102         mmp_s = current_fs->mmp_buf;
2103
2104         retval = ext2fs_mmp_read(current_fs, current_fs->super->s_mmp_block,
2105                                  current_fs->mmp_buf);
2106         if (retval) {
2107                 com_err(argv[0], retval, "reading MMP block.\n");
2108                 return;
2109         }
2110
2111         t = mmp_s->mmp_time;
2112         fprintf(stdout, "block_number: %llu\n", current_fs->super->s_mmp_block);
2113         fprintf(stdout, "update_interval: %d\n",
2114                 current_fs->super->s_mmp_update_interval);
2115         fprintf(stdout, "check_interval: %d\n", mmp_s->mmp_check_interval);
2116         fprintf(stdout, "sequence: %08x\n", mmp_s->mmp_seq);
2117         fprintf(stdout, "time: %lld -- %s", mmp_s->mmp_time, ctime(&t));
2118         fprintf(stdout, "node_name: %s\n", mmp_s->mmp_nodename);
2119         fprintf(stdout, "device_name: %s\n", mmp_s->mmp_bdevname);
2120         fprintf(stdout, "magic: 0x%x\n", mmp_s->mmp_magic);
2121         fprintf(stdout, "checksum: 0x%08x\n", mmp_s->mmp_checksum);
2122 #else
2123         fprintf(stdout, "MMP is unsupported, please recompile with "
2124                         "--enable-mmp\n");
2125 #endif
2126 }
2127
2128 static int source_file(const char *cmd_file, int ss_idx)
2129 {
2130         FILE            *f;
2131         char            buf[BUFSIZ];
2132         char            *cp;
2133         int             exit_status = 0;
2134         int             retval;
2135
2136         if (strcmp(cmd_file, "-") == 0)
2137                 f = stdin;
2138         else {
2139                 f = fopen(cmd_file, "r");
2140                 if (!f) {
2141                         perror(cmd_file);
2142                         exit(1);
2143                 }
2144         }
2145         fflush(stdout);
2146         fflush(stderr);
2147         setbuf(stdout, NULL);
2148         setbuf(stderr, NULL);
2149         while (!feof(f)) {
2150                 if (fgets(buf, sizeof(buf), f) == NULL)
2151                         break;
2152                 cp = strchr(buf, '\n');
2153                 if (cp)
2154                         *cp = 0;
2155                 cp = strchr(buf, '\r');
2156                 if (cp)
2157                         *cp = 0;
2158                 printf("debugfs: %s\n", buf);
2159                 retval = ss_execute_line(ss_idx, buf);
2160                 if (retval) {
2161                         ss_perror(ss_idx, retval, buf);
2162                         exit_status++;
2163                 }
2164         }
2165         if (f != stdin)
2166                 fclose(f);
2167         return exit_status;
2168 }
2169
2170 int main(int argc, char **argv)
2171 {
2172         int             retval;
2173         const char      *usage =
2174                 "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] "
2175                 "[-R request] [-V] ["
2176 #ifndef READ_ONLY
2177                 "[-w] "
2178 #endif
2179                 "[-c] device]";
2180         int             c;
2181         int             open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
2182         char            *request = 0;
2183         int             exit_status = 0;
2184         char            *cmd_file = 0;
2185         blk64_t         superblock = 0;
2186         blk64_t         blocksize = 0;
2187         int             catastrophic = 0;
2188         char            *data_filename = 0;
2189 #ifdef READ_ONLY
2190         const char      *opt_string = "nicR:f:b:s:Vd:D";
2191 #else
2192         const char      *opt_string = "niwcR:f:b:s:Vd:D";
2193 #endif
2194
2195         if (debug_prog_name == 0)
2196 #ifdef READ_ONLY
2197                 debug_prog_name = "rdebugfs";
2198 #else
2199                 debug_prog_name = "debugfs";
2200 #endif
2201         add_error_table(&et_ext2_error_table);
2202         fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2203                  E2FSPROGS_VERSION, E2FSPROGS_DATE);
2204
2205         while ((c = getopt (argc, argv, opt_string)) != EOF) {
2206                 switch (c) {
2207                 case 'R':
2208                         request = optarg;
2209                         break;
2210                 case 'f':
2211                         cmd_file = optarg;
2212                         break;
2213                 case 'd':
2214                         data_filename = optarg;
2215                         break;
2216                 case 'i':
2217                         open_flags |= EXT2_FLAG_IMAGE_FILE;
2218                         break;
2219                 case 'n':
2220                         open_flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
2221                         break;
2222 #ifndef READ_ONLY
2223                 case 'w':
2224                         open_flags |= EXT2_FLAG_RW;
2225                         break;
2226 #endif
2227                 case 'D':
2228                         open_flags |= EXT2_FLAG_DIRECT_IO;
2229                         break;
2230                 case 'b':
2231                         blocksize = parse_ulong(optarg, argv[0],
2232                                                 "block size", 0);
2233                         break;
2234                 case 's':
2235                         retval = strtoblk(argv[0], optarg,
2236                                           "superblock block number",
2237                                           &superblock);
2238                         if (retval)
2239                                 return 1;
2240                         break;
2241                 case 'c':
2242                         catastrophic = 1;
2243                         break;
2244                 case 'V':
2245                         /* Print version number and exit */
2246                         fprintf(stderr, "\tUsing %s\n",
2247                                 error_message(EXT2_ET_BASE));
2248                         exit(0);
2249                 default:
2250                         com_err(argv[0], 0, usage, debug_prog_name);
2251                         return 1;
2252                 }
2253         }
2254         if (optind < argc)
2255                 open_filesystem(argv[optind], open_flags,
2256                                 superblock, blocksize, catastrophic,
2257                                 data_filename);
2258
2259         sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2260                                        &debug_cmds, &retval);
2261         if (retval) {
2262                 ss_perror(sci_idx, retval, "creating invocation");
2263                 exit(1);
2264         }
2265         ss_get_readline(sci_idx);
2266
2267         (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
2268         if (retval) {
2269                 ss_perror(sci_idx, retval, "adding standard requests");
2270                 exit (1);
2271         }
2272         if (extra_cmds)
2273                 ss_add_request_table (sci_idx, extra_cmds, 1, &retval);
2274         if (retval) {
2275                 ss_perror(sci_idx, retval, "adding extra requests");
2276                 exit (1);
2277         }
2278         if (request) {
2279                 retval = 0;
2280                 retval = ss_execute_line(sci_idx, request);
2281                 if (retval) {
2282                         ss_perror(sci_idx, retval, request);
2283                         exit_status++;
2284                 }
2285         } else if (cmd_file) {
2286                 exit_status = source_file(cmd_file, sci_idx);
2287         } else {
2288                 ss_listen(sci_idx);
2289         }
2290
2291         ss_delete_invocation(sci_idx);
2292
2293         if (current_fs)
2294                 close_filesystem();
2295
2296         remove_error_table(&et_ext2_error_table);
2297         return exit_status;
2298 }