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 #include <sys/types.h>
  29 #include <sys/stat.h>
  30
  31 #include "et/com_err.h"
  32 #include "ss/ss.h"
  33 #include "debugfs.h"
  34 #include "uuid/uuid.h"
  35 #include "e2p/e2p.h"
  36
  37 #include <ext2fs/ext2_ext_attr.h>
  38
  39 #include "../version.h"
  40 #include "jfs_user.h"
  41
  42 extern ss_request_table debug_cmds;
  43 ss_request_table *extra_cmds;
  44 const char *debug_prog_name;
  45
  46 ext2_filsys     current_fs = NULL;
  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                         superblock = parse_ulong(optarg, argv[0],
 173                                                  "superblock number", &err);
 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] [-c] "
 193 #ifndef READ_ONLY
 194                 "[-w] "
 195 #endif
 196                 "<device>\n", argv[0]);
 197 }
 198
 199 void do_lcd(int argc, char **argv)
 200 {
 201         if (argc != 2) {
 202                 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>");
 203                 return;
 204         }
 205
 206         if (chdir(argv[1]) == -1) {
 207                 com_err(argv[0], errno,
 208                         "while trying to change native directory to %s",
 209                         argv[1]);
 210                 return;
 211         }
 212 }
 213
 214 static void close_filesystem(NOARGS)
 215 {
 216         int     retval;
 217
 218         if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
 219                 retval = ext2fs_write_inode_bitmap(current_fs);
 220                 if (retval)
 221                         com_err("ext2fs_write_inode_bitmap", retval, 0);
 222         }
 223         if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
 224                 retval = ext2fs_write_block_bitmap(current_fs);
 225                 if (retval)
 226                         com_err("ext2fs_write_block_bitmap", retval, 0);
 227         }
 228         retval = ext2fs_close(current_fs);
 229         if (retval)
 230                 com_err("ext2fs_close", retval, 0);
 231         current_fs = NULL;
 232         return;
 233 }
 234
 235 void do_close_filesys(int argc, char **argv)
 236 {
 237         int     c;
 238
 239         if (check_fs_open(argv[0]))
 240                 return;
 241
 242         reset_getopt();
 243         while ((c = getopt (argc, argv, "a")) != EOF) {
 244                 switch (c) {
 245                 case 'a':
 246                         current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
 247                         break;
 248                 default:
 249                         goto print_usage;
 250                 }
 251         }
 252
 253         if (argc > optind) {
 254         print_usage:
 255                 com_err(0, 0, "Usage: close_filesys [-a]");
 256                 return;
 257         }
 258
 259         close_filesystem();
 260 }
 261
 262 #ifndef READ_ONLY
 263 void do_init_filesys(int argc, char **argv)
 264 {
 265         struct ext2_super_block param;
 266         errcode_t       retval;
 267         int             err;
 268
 269         if (common_args_process(argc, argv, 3, 3, "initialize",
 270                                 "<device> <blocksize>", CHECK_FS_NOTOPEN))
 271                 return;
 272
 273         memset(&param, 0, sizeof(struct ext2_super_block));
 274         ext2fs_blocks_count_set(&param, parse_ulong(argv[2], argv[0],
 275                                                     "blocks count", &err));
 276         if (err)
 277                 return;
 278         retval = ext2fs_initialize(argv[1], 0, &param,
 279                                    unix_io_manager, &current_fs);
 280         if (retval) {
 281                 com_err(argv[1], retval, "while initializing filesystem");
 282                 current_fs = NULL;
 283                 return;
 284         }
 285         root = cwd = EXT2_ROOT_INO;
 286         return;
 287 }
 288
 289 static void print_features(struct ext2_super_block * s, FILE *f)
 290 {
 291         int     i, j, printed=0;
 292         __u32   *mask = &s->s_feature_compat, m;
 293
 294         fputs("Filesystem features:", f);
 295         for (i=0; i <3; i++,mask++) {
 296                 for (j=0,m=1; j < 32; j++, m<<=1) {
 297                         if (*mask & m) {
 298                                 fprintf(f, " %s", e2p_feature2string(i, m));
 299                                 printed++;
 300                         }
 301                 }
 302         }
 303         if (printed == 0)
 304                 fputs("(none)", f);
 305         fputs("\n", f);
 306 }
 307 #endif /* READ_ONLY */
 308
 309 static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask,
 310                           const char *str, int *first, FILE *f)
 311 {
 312         if (ext2fs_bg_flags_test(fs, group, mask)) {
 313                 if (*first) {
 314                         fputs("           [", f);
 315                         *first = 0;
 316                 } else
 317                         fputs(", ", f);
 318                 fputs(str, f);
 319         }
 320 }
 321
 322 void do_show_super_stats(int argc, char *argv[])
 323 {
 324         const char *units ="block";
 325         dgrp_t  i;
 326         FILE    *out;
 327         int     c, header_only = 0;
 328         int     numdirs = 0, first, gdt_csum;
 329
 330         reset_getopt();
 331         while ((c = getopt (argc, argv, "h")) != EOF) {
 332                 switch (c) {
 333                 case 'h':
 334                         header_only++;
 335                         break;
 336                 default:
 337                         goto print_usage;
 338                 }
 339         }
 340         if (optind != argc) {
 341                 goto print_usage;
 342         }
 343         if (check_fs_open(argv[0]))
 344                 return;
 345         out = open_pager();
 346
 347         if (EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super,
 348                                        EXT4_FEATURE_RO_COMPAT_BIGALLOC))
 349                 units = "cluster";
 350
 351         list_super2(current_fs->super, out);
 352         for (i=0; i < current_fs->group_desc_count; i++)
 353                 numdirs += ext2fs_bg_used_dirs_count(current_fs, i);
 354         fprintf(out, "Directories:              %d\n", numdirs);
 355
 356         if (header_only) {
 357                 close_pager(out);
 358                 return;
 359         }
 360
 361         gdt_csum = EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super,
 362                                               EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
 363         for (i = 0; i < current_fs->group_desc_count; i++) {
 364                 fprintf(out, " Group %2d: block bitmap at %llu, "
 365                         "inode bitmap at %llu, "
 366                         "inode table at %llu\n"
 367                         "           %u free %s%s, "
 368                         "%u free %s, "
 369                         "%u used %s%s",
 370                         i, ext2fs_block_bitmap_loc(current_fs, i),
 371                         ext2fs_inode_bitmap_loc(current_fs, i),
 372                         ext2fs_inode_table_loc(current_fs, i),
 373                         ext2fs_bg_free_blocks_count(current_fs, i), units,
 374                         ext2fs_bg_free_blocks_count(current_fs, i) != 1 ?
 375                         "s" : "",
 376                         ext2fs_bg_free_inodes_count(current_fs, i),
 377                         ext2fs_bg_free_inodes_count(current_fs, i) != 1 ?
 378                         "inodes" : "inode",
 379                         ext2fs_bg_used_dirs_count(current_fs, i),
 380                         ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories"
 381                                 : "directory", gdt_csum ? ", " : "\n");
 382                 if (gdt_csum)
 383                         fprintf(out, "%u unused %s\n",
 384                                 ext2fs_bg_itable_unused(current_fs, i),
 385                                 ext2fs_bg_itable_unused(current_fs, i) != 1 ?
 386                                 "inodes" : "inode");
 387                 first = 1;
 388                 print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init",
 389                               &first, out);
 390                 print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init",
 391                               &first, out);
 392                 if (gdt_csum) {
 393                         fprintf(out, "%sChecksum 0x%04x",
 394                                 first ? "           [":", ", ext2fs_bg_checksum(current_fs, i));
 395                         first = 0;
 396                 }
 397                 if (!first)
 398                         fputs("]\n", out);
 399         }
 400         close_pager(out);
 401         return;
 402 print_usage:
 403         fprintf(stderr, "%s: Usage: show_super [-h]\n", argv[0]);
 404 }
 405
 406 #ifndef READ_ONLY
 407 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
 408                       char **argv EXT2FS_ATTR((unused)))
 409 {
 410         if (check_fs_open(argv[0]))
 411                 return;
 412         if (check_fs_read_write(argv[0]))
 413                 return;
 414
 415         if (argv[1] && !strcmp(argv[1], "-clean"))
 416                 current_fs->super->s_state |= EXT2_VALID_FS;
 417         else
 418                 current_fs->super->s_state &= ~EXT2_VALID_FS;
 419         ext2fs_mark_super_dirty(current_fs);
 420 }
 421 #endif /* READ_ONLY */
 422
 423 struct list_blocks_struct {
 424         FILE            *f;
 425         e2_blkcnt_t     total;
 426         blk64_t         first_block, last_block;
 427         e2_blkcnt_t     first_bcnt, last_bcnt;
 428         e2_blkcnt_t     first;
 429 };
 430
 431 static void finish_range(struct list_blocks_struct *lb)
 432 {
 433         if (lb->first_block == 0)
 434                 return;
 435         if (lb->first)
 436                 lb->first = 0;
 437         else
 438                 fprintf(lb->f, ", ");
 439         if (lb->first_block == lb->last_block)
 440                 fprintf(lb->f, "(%lld):%llu",
 441                         (long long)lb->first_bcnt, lb->first_block);
 442         else
 443                 fprintf(lb->f, "(%lld-%lld):%llu-%llu",
 444                         (long long)lb->first_bcnt, (long long)lb->last_bcnt,
 445                         lb->first_block, lb->last_block);
 446         lb->first_block = 0;
 447 }
 448
 449 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
 450                             blk64_t *blocknr, e2_blkcnt_t blockcnt,
 451                             blk64_t ref_block EXT2FS_ATTR((unused)),
 452                             int ref_offset EXT2FS_ATTR((unused)),
 453                             void *private)
 454 {
 455         struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
 456
 457         lb->total++;
 458         if (blockcnt >= 0) {
 459                 /*
 460                  * See if we can add on to the existing range (if it exists)
 461                  */
 462                 if (lb->first_block &&
 463                     (lb->last_block+1 == *blocknr) &&
 464                     (lb->last_bcnt+1 == blockcnt)) {
 465                         lb->last_block = *blocknr;
 466                         lb->last_bcnt = blockcnt;
 467                         return 0;
 468                 }
 469                 /*
 470                  * Start a new range.
 471                  */
 472                 finish_range(lb);
 473                 lb->first_block = lb->last_block = *blocknr;
 474                 lb->first_bcnt = lb->last_bcnt = blockcnt;
 475                 return 0;
 476         }
 477         /*
 478          * Not a normal block.  Always force a new range.
 479          */
 480         finish_range(lb);
 481         if (lb->first)
 482                 lb->first = 0;
 483         else
 484                 fprintf(lb->f, ", ");
 485         if (blockcnt == -1)
 486                 fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr);
 487         else if (blockcnt == -2)
 488                 fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr);
 489         else if (blockcnt == -3)
 490                 fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr);
 491         return 0;
 492 }
 493
 494 static void dump_xattr_string(FILE *out, const char *str, int len)
 495 {
 496         int printable = 0;
 497         int i;
 498
 499         /* check: is string "printable enough?" */
 500         for (i = 0; i < len; i++)
 501                 if (isprint(str[i]))
 502                         printable++;
 503
 504         if (printable <= len*7/8)
 505                 printable = 0;
 506
 507         for (i = 0; i < len; i++)
 508                 if (printable)
 509                         fprintf(out, isprint(str[i]) ? "%c" : "\\%03o",
 510                                 (unsigned char)str[i]);
 511                 else
 512                         fprintf(out, "%02x ", (unsigned char)str[i]);
 513 }
 514
 515 static void internal_dump_inode_extra(FILE *out,
 516                                       const char *prefix EXT2FS_ATTR((unused)),
 517                                       ext2_ino_t inode_num EXT2FS_ATTR((unused)),
 518                                       struct ext2_inode_large *inode)
 519 {
 520         struct ext2_ext_attr_entry *entry;
 521         __u32 *magic;
 522         char *start, *end;
 523         unsigned int storage_size;
 524
 525         fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
 526         if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
 527                         EXT2_GOOD_OLD_INODE_SIZE) {
 528                 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
 529                                 inode->i_extra_isize);
 530                 return;
 531         }
 532         storage_size = EXT2_INODE_SIZE(current_fs->super) -
 533                         EXT2_GOOD_OLD_INODE_SIZE -
 534                         inode->i_extra_isize;
 535         magic = (__u32 *)((char *)inode + EXT2_GOOD_OLD_INODE_SIZE +
 536                         inode->i_extra_isize);
 537         if (*magic == EXT2_EXT_ATTR_MAGIC) {
 538                 fprintf(out, "Extended attributes stored in inode body: \n");
 539                 end = (char *) inode + EXT2_INODE_SIZE(current_fs->super);
 540                 start = (char *) magic + sizeof(__u32);
 541                 entry = (struct ext2_ext_attr_entry *) start;
 542                 while (!EXT2_EXT_IS_LAST_ENTRY(entry)) {
 543                         struct ext2_ext_attr_entry *next =
 544                                 EXT2_EXT_ATTR_NEXT(entry);
 545                         if (entry->e_value_size > storage_size ||
 546                                         (char *) next >= end) {
 547                                 fprintf(out, "invalid EA entry in inode\n");
 548                                 return;
 549                         }
 550                         fprintf(out, "  ");
 551                         dump_xattr_string(out, EXT2_EXT_ATTR_NAME(entry),
 552                                           entry->e_name_len);
 553                         fprintf(out, " = \"");
 554                         dump_xattr_string(out, start + entry->e_value_offs,
 555                                                 entry->e_value_size);
 556                         fprintf(out, "\" (%u)\n", entry->e_value_size);
 557                         entry = next;
 558                 }
 559         }
 560 }
 561
 562 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
 563 {
 564         struct list_blocks_struct lb;
 565
 566         fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
 567         lb.total = 0;
 568         lb.first_block = 0;
 569         lb.f = f;
 570         lb.first = 1;
 571         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
 572                               list_blocks_proc, (void *)&lb);
 573         finish_range(&lb);
 574         if (lb.total)
 575                 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
 576         fprintf(f,"\n");
 577 }
 578
 579 static int int_log10(unsigned long long arg)
 580 {
 581         int     l = 0;
 582
 583         arg = arg / 10;
 584         while (arg) {
 585                 l++;
 586                 arg = arg / 10;
 587         }
 588         return l;
 589 }
 590
 591 #define DUMP_LEAF_EXTENTS       0x01
 592 #define DUMP_NODE_EXTENTS       0x02
 593 #define DUMP_EXTENT_TABLE       0x04
 594
 595 static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino,
 596                          int flags, int logical_width, int physical_width)
 597 {
 598         ext2_extent_handle_t    handle;
 599         struct ext2fs_extent    extent;
 600         struct ext2_extent_info info;
 601         int                     op = EXT2_EXTENT_ROOT;
 602         unsigned int            printed = 0;
 603         errcode_t               errcode;
 604
 605         errcode = ext2fs_extent_open(current_fs, ino, &handle);
 606         if (errcode)
 607                 return;
 608
 609         if (flags & DUMP_EXTENT_TABLE)
 610                 fprintf(f, "Level Entries %*s %*s Length Flags\n",
 611                         (logical_width*2)+3, "Logical",
 612                         (physical_width*2)+3, "Physical");
 613         else
 614                 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix);
 615
 616         while (1) {
 617                 errcode = ext2fs_extent_get(handle, op, &extent);
 618
 619                 if (errcode)
 620                         break;
 621
 622                 op = EXT2_EXTENT_NEXT;
 623
 624                 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 625                         continue;
 626
 627                 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
 628                         if ((flags & DUMP_LEAF_EXTENTS) == 0)
 629                                 continue;
 630                 } else {
 631                         if ((flags & DUMP_NODE_EXTENTS) == 0)
 632                                 continue;
 633                 }
 634
 635                 errcode = ext2fs_extent_get_info(handle, &info);
 636                 if (errcode)
 637                         continue;
 638
 639                 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) {
 640                         if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 641                                 continue;
 642
 643                         if (flags & DUMP_EXTENT_TABLE) {
 644                                 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 645                                         "%*llu%*s %6u\n",
 646                                         info.curr_level, info.max_depth,
 647                                         info.curr_entry, info.num_entries,
 648                                         logical_width,
 649                                         extent.e_lblk,
 650                                         logical_width,
 651                                         extent.e_lblk + (extent.e_len - 1),
 652                                         physical_width,
 653                                         extent.e_pblk,
 654                                         physical_width+3, "", extent.e_len);
 655                                 continue;
 656                         }
 657
 658                         fprintf(f, "%s(ETB%d):%lld",
 659                                 printed ? ", " : "", info.curr_level,
 660                                 extent.e_pblk);
 661                         printed = 1;
 662                         continue;
 663                 }
 664
 665                 if (flags & DUMP_EXTENT_TABLE) {
 666                         fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 667                                 "%*llu - %*llu %6u %s\n",
 668                                 info.curr_level, info.max_depth,
 669                                 info.curr_entry, info.num_entries,
 670                                 logical_width,
 671                                 extent.e_lblk,
 672                                 logical_width,
 673                                 extent.e_lblk + (extent.e_len - 1),
 674                                 physical_width,
 675                                 extent.e_pblk,
 676                                 physical_width,
 677                                 extent.e_pblk + (extent.e_len - 1),
 678                                 extent.e_len,
 679                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 680                                         "Uninit" : "");
 681                         continue;
 682                 }
 683
 684                 if (extent.e_len == 0)
 685                         continue;
 686                 else if (extent.e_len == 1)
 687                         fprintf(f,
 688                                 "%s(%lld%s):%lld",
 689                                 printed ? ", " : "",
 690                                 extent.e_lblk,
 691                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 692                                 "[u]" : "",
 693                                 extent.e_pblk);
 694                 else
 695                         fprintf(f,
 696                                 "%s(%lld-%lld%s):%lld-%lld",
 697                                 printed ? ", " : "",
 698                                 extent.e_lblk,
 699                                 extent.e_lblk + (extent.e_len - 1),
 700                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 701                                         "[u]" : "",
 702                                 extent.e_pblk,
 703                                 extent.e_pblk + (extent.e_len - 1));
 704                 printed = 1;
 705         }
 706         if (printed)
 707                 fprintf(f, "\n");
 708 }
 709
 710 void internal_dump_inode(FILE *out, const char *prefix,
 711                          ext2_ino_t inode_num, struct ext2_inode *inode,
 712                          int do_dump_blocks)
 713 {
 714         const char *i_type;
 715         char frag, fsize;
 716         int os = current_fs->super->s_creator_os;
 717         struct ext2_inode_large *large_inode;
 718         int is_large_inode = 0;
 719
 720         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 721                 is_large_inode = 1;
 722         large_inode = (struct ext2_inode_large *) inode;
 723
 724         if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
 725         else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
 726         else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
 727         else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
 728         else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
 729         else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
 730         else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
 731         else i_type = "bad type";
 732         fprintf(out, "%sInode: %u   Type: %s    ", prefix, inode_num, i_type);
 733         fprintf(out, "%sMode:  %04o   Flags: 0x%x\n",
 734                 prefix, inode->i_mode & 0777, inode->i_flags);
 735         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 736                 fprintf(out, "%sGeneration: %u    Version: 0x%08x:%08x\n",
 737                         prefix, inode->i_generation, large_inode->i_version_hi,
 738                         inode->osd1.linux1.l_i_version);
 739         } else {
 740                 fprintf(out, "%sGeneration: %u    Version: 0x%08x\n", prefix,
 741                         inode->i_generation, inode->osd1.linux1.l_i_version);
 742         }
 743         fprintf(out, "%sUser: %5d   Group: %5d   Size: ",
 744                 prefix, inode_uid(*inode), inode_gid(*inode));
 745         if (LINUX_S_ISREG(inode->i_mode))
 746                 fprintf(out, "%llu\n", EXT2_I_SIZE(inode));
 747         else
 748                 fprintf(out, "%d\n", inode->i_size);
 749         if (os == EXT2_OS_HURD)
 750                 fprintf(out,
 751                         "%sFile ACL: %d    Directory ACL: %d Translator: %d\n",
 752                         prefix,
 753                         inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0,
 754                         inode->osd1.hurd1.h_i_translator);
 755         else
 756                 fprintf(out, "%sFile ACL: %llu    Directory ACL: %d\n",
 757                         prefix,
 758                         inode->i_file_acl | ((long long)
 759                                 (inode->osd2.linux2.l_i_file_acl_high) << 32),
 760                         LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0);
 761         if (os == EXT2_OS_LINUX)
 762                 fprintf(out, "%sLinks: %d   Blockcount: %llu\n",
 763                         prefix, inode->i_links_count,
 764                         (((unsigned long long)
 765                           inode->osd2.linux2.l_i_blocks_hi << 32)) +
 766                         inode->i_blocks);
 767         else
 768                 fprintf(out, "%sLinks: %d   Blockcount: %u\n",
 769                         prefix, inode->i_links_count, inode->i_blocks);
 770         switch (os) {
 771             case EXT2_OS_HURD:
 772                 frag = inode->osd2.hurd2.h_i_frag;
 773                 fsize = inode->osd2.hurd2.h_i_fsize;
 774                 break;
 775             default:
 776                 frag = fsize = 0;
 777         }
 778         fprintf(out, "%sFragment:  Address: %d    Number: %d    Size: %d\n",
 779                 prefix, inode->i_faddr, frag, fsize);
 780         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 781                 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
 782                         inode->i_ctime, large_inode->i_ctime_extra,
 783                         time_to_string(inode->i_ctime));
 784                 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
 785                         inode->i_atime, large_inode->i_atime_extra,
 786                         time_to_string(inode->i_atime));
 787                 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
 788                         inode->i_mtime, large_inode->i_mtime_extra,
 789                         time_to_string(inode->i_mtime));
 790                 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
 791                         large_inode->i_crtime, large_inode->i_crtime_extra,
 792                         time_to_string(large_inode->i_crtime));
 793         } else {
 794                 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
 795                         time_to_string(inode->i_ctime));
 796                 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
 797                         time_to_string(inode->i_atime));
 798                 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
 799                         time_to_string(inode->i_mtime));
 800         }
 801         if (inode->i_dtime)
 802           fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime,
 803                   time_to_string(inode->i_dtime));
 804         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 805                 internal_dump_inode_extra(out, prefix, inode_num,
 806                                           (struct ext2_inode_large *) inode);
 807         if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_inode_data_blocks(current_fs,inode) == 0)
 808                 fprintf(out, "%sFast_link_dest: %.*s\n", prefix,
 809                         (int) inode->i_size, (char *)inode->i_block);
 810         else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
 811                 int major, minor;
 812                 const char *devnote;
 813
 814                 if (inode->i_block[0]) {
 815                         major = (inode->i_block[0] >> 8) & 255;
 816                         minor = inode->i_block[0] & 255;
 817                         devnote = "";
 818                 } else {
 819                         major = (inode->i_block[1] & 0xfff00) >> 8;
 820                         minor = ((inode->i_block[1] & 0xff) |
 821                                  ((inode->i_block[1] >> 12) & 0xfff00));
 822                         devnote = "(New-style) ";
 823                 }
 824                 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
 825                         devnote, major, minor, major, minor);
 826         } else if (do_dump_blocks) {
 827                 if (inode->i_flags & EXT4_EXTENTS_FL)
 828                         dump_extents(out, prefix, inode_num,
 829                                      DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0);
 830                 else
 831                         dump_blocks(out, prefix, inode_num);
 832         }
 833 }
 834
 835 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
 836 {
 837         FILE    *out;
 838
 839         out = open_pager();
 840         internal_dump_inode(out, "", inode_num, inode, 1);
 841         close_pager(out);
 842 }
 843
 844 void do_stat(int argc, char *argv[])
 845 {
 846         ext2_ino_t      inode;
 847         struct ext2_inode * inode_buf;
 848
 849         if (check_fs_open(argv[0]))
 850                 return;
 851
 852         inode_buf = (struct ext2_inode *)
 853                         malloc(EXT2_INODE_SIZE(current_fs->super));
 854         if (!inode_buf) {
 855                 fprintf(stderr, "do_stat: can't allocate buffer\n");
 856                 return;
 857         }
 858
 859         if (common_inode_args_process(argc, argv, &inode, 0)) {
 860                 free(inode_buf);
 861                 return;
 862         }
 863
 864         if (debugfs_read_inode_full(inode, inode_buf, argv[0],
 865                                         EXT2_INODE_SIZE(current_fs->super))) {
 866                 free(inode_buf);
 867                 return;
 868         }
 869
 870         dump_inode(inode, inode_buf);
 871         free(inode_buf);
 872         return;
 873 }
 874
 875 void do_dump_extents(int argc, char **argv)
 876 {
 877         struct ext2_inode inode;
 878         ext2_ino_t      ino;
 879         FILE            *out;
 880         int             c, flags = 0;
 881         int             logical_width;
 882         int             physical_width;
 883
 884         reset_getopt();
 885         while ((c = getopt(argc, argv, "nl")) != EOF) {
 886                 switch (c) {
 887                 case 'n':
 888                         flags |= DUMP_NODE_EXTENTS;
 889                         break;
 890                 case 'l':
 891                         flags |= DUMP_LEAF_EXTENTS;
 892                         break;
 893                 }
 894         }
 895
 896         if (argc != optind + 1) {
 897                 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
 898                 return;
 899         }
 900
 901         if (flags == 0)
 902                 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
 903         flags |= DUMP_EXTENT_TABLE;
 904
 905         if (check_fs_open(argv[0]))
 906                 return;
 907
 908         ino = string_to_inode(argv[optind]);
 909         if (ino == 0)
 910                 return;
 911
 912         if (debugfs_read_inode(ino, &inode, argv[0]))
 913                 return;
 914
 915         if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
 916                 fprintf(stderr, "%s: does not uses extent block maps\n",
 917                         argv[optind]);
 918                 return;
 919         }
 920
 921         logical_width = int_log10((EXT2_I_SIZE(&inode)+current_fs->blocksize-1)/
 922                                   current_fs->blocksize) + 1;
 923         if (logical_width < 5)
 924                 logical_width = 5;
 925         physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1;
 926         if (physical_width < 5)
 927                 physical_width = 5;
 928
 929         out = open_pager();
 930         dump_extents(out, "", ino, flags, logical_width, physical_width);
 931         close_pager(out);
 932         return;
 933 }
 934
 935 static int print_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
 936                              blk64_t *blocknr,
 937                              e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
 938                              blk64_t ref_block EXT2FS_ATTR((unused)),
 939                              int ref_offset EXT2FS_ATTR((unused)),
 940                              void *private EXT2FS_ATTR((unused)))
 941 {
 942         printf("%llu ", *blocknr);
 943         return 0;
 944 }
 945
 946 void do_blocks(int argc, char *argv[])
 947 {
 948         ext2_ino_t      inode;
 949
 950         if (check_fs_open(argv[0]))
 951                 return;
 952
 953         if (common_inode_args_process(argc, argv, &inode, 0)) {
 954                 return;
 955         }
 956
 957         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
 958                               print_blocks_proc, NULL);
 959         fputc('\n', stdout);
 960         return;
 961 }
 962
 963 void do_chroot(int argc, char *argv[])
 964 {
 965         ext2_ino_t inode;
 966         int retval;
 967
 968         if (common_inode_args_process(argc, argv, &inode, 0))
 969                 return;
 970
 971         retval = ext2fs_check_directory(current_fs, inode);
 972         if (retval)  {
 973                 com_err(argv[1], retval, 0);
 974                 return;
 975         }
 976         root = inode;
 977 }
 978
 979 #ifndef READ_ONLY
 980 void do_clri(int argc, char *argv[])
 981 {
 982         ext2_ino_t inode;
 983         struct ext2_inode inode_buf;
 984
 985         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
 986                 return;
 987
 988         if (debugfs_read_inode(inode, &inode_buf, argv[0]))
 989                 return;
 990         memset(&inode_buf, 0, sizeof(inode_buf));
 991         if (debugfs_write_inode(inode, &inode_buf, argv[0]))
 992                 return;
 993 }
 994
 995 void do_freei(int argc, char *argv[])
 996 {
 997         unsigned int    len = 1;
 998         int             err = 0;
 999         ext2_ino_t      inode;
1000
1001         if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1002                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1003                 return;
1004         if (check_fs_read_write(argv[0]))
1005                 return;
1006
1007         inode = string_to_inode(argv[1]);
1008         if (!inode)
1009                 return;
1010
1011         if (argc == 3) {
1012                 len = parse_ulong(argv[2], argv[0], "length", &err);
1013                 if (err)
1014                         return;
1015         }
1016
1017         if (len == 1 &&
1018             !ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1019                 com_err(argv[0], 0, "Warning: inode already clear");
1020         while (len-- > 0)
1021                 ext2fs_unmark_inode_bitmap2(current_fs->inode_map, inode);
1022         ext2fs_mark_ib_dirty(current_fs);
1023 }
1024
1025 void do_seti(int argc, char *argv[])
1026 {
1027         unsigned int    len = 1;
1028         int             err = 0;
1029         ext2_ino_t      inode;
1030
1031         if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1032                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1033                 return;
1034         if (check_fs_read_write(argv[0]))
1035                 return;
1036
1037         inode = string_to_inode(argv[1]);
1038         if (!inode)
1039                 return;
1040
1041         if (argc == 3) {
1042                 len = parse_ulong(argv[2], argv[0], "length", &err);
1043                 if (err)
1044                         return;
1045         }
1046
1047         if ((len == 1) &&
1048             ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1049                 com_err(argv[0], 0, "Warning: inode already set");
1050         while (len-- > 0)
1051                 ext2fs_mark_inode_bitmap2(current_fs->inode_map, inode++);
1052         ext2fs_mark_ib_dirty(current_fs);
1053 }
1054 #endif /* READ_ONLY */
1055
1056 void do_testi(int argc, char *argv[])
1057 {
1058         ext2_ino_t inode;
1059
1060         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
1061                 return;
1062
1063         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1064                 printf("Inode %u is marked in use\n", inode);
1065         else
1066                 printf("Inode %u is not in use\n", inode);
1067 }
1068
1069 #ifndef READ_ONLY
1070 void do_freeb(int argc, char *argv[])
1071 {
1072         blk64_t block;
1073         blk64_t count = 1;
1074
1075         if (common_block_args_process(argc, argv, &block, &count))
1076                 return;
1077         if (check_fs_read_write(argv[0]))
1078                 return;
1079         while (count-- > 0) {
1080                 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
1081                         com_err(argv[0], 0, "Warning: block %llu already clear",
1082                                 block);
1083                 ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
1084                 block++;
1085         }
1086         ext2fs_mark_bb_dirty(current_fs);
1087 }
1088
1089 void do_setb(int argc, char *argv[])
1090 {
1091         blk64_t block;
1092         blk64_t count = 1;
1093
1094         if (common_block_args_process(argc, argv, &block, &count))
1095                 return;
1096         if (check_fs_read_write(argv[0]))
1097                 return;
1098         while (count-- > 0) {
1099                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1100                         com_err(argv[0], 0, "Warning: block %llu already set",
1101                                 block);
1102                 ext2fs_mark_block_bitmap2(current_fs->block_map,block);
1103                 block++;
1104         }
1105         ext2fs_mark_bb_dirty(current_fs);
1106 }
1107 #endif /* READ_ONLY */
1108
1109 void do_testb(int argc, char *argv[])
1110 {
1111         blk64_t block;
1112         blk64_t count = 1;
1113
1114         if (common_block_args_process(argc, argv, &block, &count))
1115                 return;
1116         while (count-- > 0) {
1117                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1118                         printf("Block %llu marked in use\n", block);
1119                 else
1120                         printf("Block %llu not in use\n", block);
1121                 block++;
1122         }
1123 }
1124
1125 #ifndef READ_ONLY
1126 static void modify_u8(char *com, const char *prompt,
1127                       const char *format, __u8 *val)
1128 {
1129         char buf[200];
1130         unsigned long v;
1131         char *tmp;
1132
1133         sprintf(buf, format, *val);
1134         printf("%30s    [%s] ", prompt, buf);
1135         if (!fgets(buf, sizeof(buf), stdin))
1136                 return;
1137         if (buf[strlen (buf) - 1] == '\n')
1138                 buf[strlen (buf) - 1] = '\0';
1139         if (!buf[0])
1140                 return;
1141         v = strtoul(buf, &tmp, 0);
1142         if (*tmp)
1143                 com_err(com, 0, "Bad value - %s", buf);
1144         else
1145                 *val = v;
1146 }
1147
1148 static void modify_u16(char *com, const char *prompt,
1149                        const char *format, __u16 *val)
1150 {
1151         char buf[200];
1152         unsigned long v;
1153         char *tmp;
1154
1155         sprintf(buf, format, *val);
1156         printf("%30s    [%s] ", prompt, buf);
1157         if (!fgets(buf, sizeof(buf), stdin))
1158                 return;
1159         if (buf[strlen (buf) - 1] == '\n')
1160                 buf[strlen (buf) - 1] = '\0';
1161         if (!buf[0])
1162                 return;
1163         v = strtoul(buf, &tmp, 0);
1164         if (*tmp)
1165                 com_err(com, 0, "Bad value - %s", buf);
1166         else
1167                 *val = v;
1168 }
1169
1170 static void modify_u32(char *com, const char *prompt,
1171                        const char *format, __u32 *val)
1172 {
1173         char buf[200];
1174         unsigned long v;
1175         char *tmp;
1176
1177         sprintf(buf, format, *val);
1178         printf("%30s    [%s] ", prompt, buf);
1179         if (!fgets(buf, sizeof(buf), stdin))
1180                 return;
1181         if (buf[strlen (buf) - 1] == '\n')
1182                 buf[strlen (buf) - 1] = '\0';
1183         if (!buf[0])
1184                 return;
1185         v = strtoul(buf, &tmp, 0);
1186         if (*tmp)
1187                 com_err(com, 0, "Bad value - %s", buf);
1188         else
1189                 *val = v;
1190 }
1191
1192
1193 void do_modify_inode(int argc, char *argv[])
1194 {
1195         struct ext2_inode inode;
1196         ext2_ino_t      inode_num;
1197         int             i;
1198         unsigned char   *frag, *fsize;
1199         char            buf[80];
1200         int             os;
1201         const char      *hex_format = "0x%x";
1202         const char      *octal_format = "0%o";
1203         const char      *decimal_format = "%d";
1204         const char      *unsignedlong_format = "%lu";
1205
1206         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1207                 return;
1208
1209         os = current_fs->super->s_creator_os;
1210
1211         if (debugfs_read_inode(inode_num, &inode, argv[1]))
1212                 return;
1213
1214         modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1215         modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1216         modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1217         modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1218         modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1219         modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1220         modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1221         modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1222         modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1223         if (os == EXT2_OS_LINUX)
1224                 modify_u16(argv[0], "Block count high", unsignedlong_format,
1225                            &inode.osd2.linux2.l_i_blocks_hi);
1226         modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1227         modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1228         modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1229 #if 0
1230         modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1231 #endif
1232         modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1233         if (LINUX_S_ISDIR(inode.i_mode))
1234                 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
1235         else
1236                 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
1237
1238         if (os == EXT2_OS_HURD)
1239                 modify_u32(argv[0], "Translator Block",
1240                             decimal_format, &inode.osd1.hurd1.h_i_translator);
1241
1242         modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1243         switch (os) {
1244             case EXT2_OS_HURD:
1245                 frag = &inode.osd2.hurd2.h_i_frag;
1246                 fsize = &inode.osd2.hurd2.h_i_fsize;
1247                 break;
1248             default:
1249                 frag = fsize = 0;
1250         }
1251         if (frag)
1252                 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1253         if (fsize)
1254                 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1255
1256         for (i=0;  i < EXT2_NDIR_BLOCKS; i++) {
1257                 sprintf(buf, "Direct Block #%d", i);
1258                 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1259         }
1260         modify_u32(argv[0], "Indirect Block", decimal_format,
1261                     &inode.i_block[EXT2_IND_BLOCK]);
1262         modify_u32(argv[0], "Double Indirect Block", decimal_format,
1263                     &inode.i_block[EXT2_DIND_BLOCK]);
1264         modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1265                     &inode.i_block[EXT2_TIND_BLOCK]);
1266         if (debugfs_write_inode(inode_num, &inode, argv[1]))
1267                 return;
1268 }
1269 #endif /* READ_ONLY */
1270
1271 void do_change_working_dir(int argc, char *argv[])
1272 {
1273         ext2_ino_t      inode;
1274         int             retval;
1275
1276         if (common_inode_args_process(argc, argv, &inode, 0))
1277                 return;
1278
1279         retval = ext2fs_check_directory(current_fs, inode);
1280         if (retval) {
1281                 com_err(argv[1], retval, 0);
1282                 return;
1283         }
1284         cwd = inode;
1285         return;
1286 }
1287
1288 void do_print_working_directory(int argc, char *argv[])
1289 {
1290         int     retval;
1291         char    *pathname = NULL;
1292
1293         if (common_args_process(argc, argv, 1, 1,
1294                                 "print_working_directory", "", 0))
1295                 return;
1296
1297         retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1298         if (retval) {
1299                 com_err(argv[0], retval,
1300                         "while trying to get pathname of cwd");
1301         }
1302         printf("[pwd]   INODE: %6u  PATH: %s\n",
1303                cwd, pathname ? pathname : "NULL");
1304         if (pathname) {
1305                 free(pathname);
1306                 pathname = NULL;
1307         }
1308         retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1309         if (retval) {
1310                 com_err(argv[0], retval,
1311                         "while trying to get pathname of root");
1312         }
1313         printf("[root]  INODE: %6u  PATH: %s\n",
1314                root, pathname ? pathname : "NULL");
1315         if (pathname) {
1316                 free(pathname);
1317                 pathname = NULL;
1318         }
1319         return;
1320 }
1321
1322 #ifndef READ_ONLY
1323 static void make_link(char *sourcename, char *destname)
1324 {
1325         ext2_ino_t      ino;
1326         struct ext2_inode inode;
1327         int             retval;
1328         ext2_ino_t      dir;
1329         char            *dest, *cp, *base_name;
1330
1331         /*
1332          * Get the source inode
1333          */
1334         ino = string_to_inode(sourcename);
1335         if (!ino)
1336                 return;
1337         base_name = strrchr(sourcename, '/');
1338         if (base_name)
1339                 base_name++;
1340         else
1341                 base_name = sourcename;
1342         /*
1343          * Figure out the destination.  First see if it exists and is
1344          * a directory.
1345          */
1346         if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1347                 dest = base_name;
1348         else {
1349                 /*
1350                  * OK, it doesn't exist.  See if it is
1351                  * '<dir>/basename' or 'basename'
1352                  */
1353                 cp = strrchr(destname, '/');
1354                 if (cp) {
1355                         *cp = 0;
1356                         dir = string_to_inode(destname);
1357                         if (!dir)
1358                                 return;
1359                         dest = cp+1;
1360                 } else {
1361                         dir = cwd;
1362                         dest = destname;
1363                 }
1364         }
1365
1366         if (debugfs_read_inode(ino, &inode, sourcename))
1367                 return;
1368
1369         retval = ext2fs_link(current_fs, dir, dest, ino,
1370                              ext2_file_type(inode.i_mode));
1371         if (retval)
1372                 com_err("make_link", retval, 0);
1373         return;
1374 }
1375
1376
1377 void do_link(int argc, char *argv[])
1378 {
1379         if (common_args_process(argc, argv, 3, 3, "link",
1380                                 "<source file> <dest_name>", CHECK_FS_RW))
1381                 return;
1382
1383         make_link(argv[1], argv[2]);
1384 }
1385
1386 static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1387                             e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1388                             blk64_t ref_block EXT2FS_ATTR((unused)),
1389                             int ref_offset EXT2FS_ATTR((unused)),
1390                             void *private EXT2FS_ATTR((unused)))
1391 {
1392         blk64_t block;
1393
1394         block = *blocknr;
1395         ext2fs_block_alloc_stats2(fs, block, +1);
1396         return 0;
1397 }
1398
1399 void do_undel(int argc, char *argv[])
1400 {
1401         ext2_ino_t      ino;
1402         struct ext2_inode inode;
1403
1404         if (common_args_process(argc, argv, 2, 3, "undelete",
1405                                 "<inode_num> [dest_name]",
1406                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1407                 return;
1408
1409         ino = string_to_inode(argv[1]);
1410         if (!ino)
1411                 return;
1412
1413         if (debugfs_read_inode(ino, &inode, argv[1]))
1414                 return;
1415
1416         if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
1417                 com_err(argv[1], 0, "Inode is not marked as deleted");
1418                 return;
1419         }
1420
1421         /*
1422          * XXX this function doesn't handle changing the links count on the
1423          * parent directory when undeleting a directory.
1424          */
1425         inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1426         inode.i_dtime = 0;
1427
1428         if (debugfs_write_inode(ino, &inode, argv[0]))
1429                 return;
1430
1431         ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1432                               mark_blocks_proc, NULL);
1433
1434         ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1435
1436         if (argc > 2)
1437                 make_link(argv[1], argv[2]);
1438 }
1439
1440 static void unlink_file_by_name(char *filename)
1441 {
1442         int             retval;
1443         ext2_ino_t      dir;
1444         char            *base_name;
1445
1446         base_name = strrchr(filename, '/');
1447         if (base_name) {
1448                 *base_name++ = '\0';
1449                 dir = string_to_inode(filename);
1450                 if (!dir)
1451                         return;
1452         } else {
1453                 dir = cwd;
1454                 base_name = filename;
1455         }
1456         retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1457         if (retval)
1458                 com_err("unlink_file_by_name", retval, 0);
1459         return;
1460 }
1461
1462 void do_unlink(int argc, char *argv[])
1463 {
1464         if (common_args_process(argc, argv, 2, 2, "link",
1465                                 "<pathname>", CHECK_FS_RW))
1466                 return;
1467
1468         unlink_file_by_name(argv[1]);
1469 }
1470 #endif /* READ_ONLY */
1471
1472 void do_find_free_block(int argc, char *argv[])
1473 {
1474         blk64_t free_blk, goal, first_free = 0;
1475         int             count;
1476         errcode_t       retval;
1477         char            *tmp;
1478
1479         if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1480                 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1481                 return;
1482         }
1483         if (check_fs_open(argv[0]))
1484                 return;
1485
1486         if (argc > 1) {
1487                 count = strtol(argv[1],&tmp,0);
1488                 if (*tmp) {
1489                         com_err(argv[0], 0, "Bad count - %s", argv[1]);
1490                         return;
1491                 }
1492         } else
1493                 count = 1;
1494
1495         if (argc > 2) {
1496                 goal = strtol(argv[2], &tmp, 0);
1497                 if (*tmp) {
1498                         com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1499                         return;
1500                 }
1501         }
1502         else
1503                 goal = current_fs->super->s_first_data_block;
1504
1505         printf("Free blocks found: ");
1506         free_blk = goal - 1;
1507         while (count-- > 0) {
1508                 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
1509                                            &free_blk);
1510                 if (first_free) {
1511                         if (first_free == free_blk)
1512                                 break;
1513                 } else
1514                         first_free = free_blk;
1515                 if (retval) {
1516                         com_err("ext2fs_new_block", retval, 0);
1517                         return;
1518                 } else
1519                         printf("%llu ", free_blk);
1520         }
1521         printf("\n");
1522 }
1523
1524 void do_find_free_inode(int argc, char *argv[])
1525 {
1526         ext2_ino_t      free_inode, dir;
1527         int             mode;
1528         int             retval;
1529         char            *tmp;
1530
1531         if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1532                 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
1533                 return;
1534         }
1535         if (check_fs_open(argv[0]))
1536                 return;
1537
1538         if (argc > 1) {
1539                 dir = strtol(argv[1], &tmp, 0);
1540                 if (*tmp) {
1541                         com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1542                         return;
1543                 }
1544         }
1545         else
1546                 dir = root;
1547         if (argc > 2) {
1548                 mode = strtol(argv[2], &tmp, 0);
1549                 if (*tmp) {
1550                         com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1551                         return;
1552                 }
1553         } else
1554                 mode = 010755;
1555
1556         retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1557         if (retval)
1558                 com_err("ext2fs_new_inode", retval, 0);
1559         else
1560                 printf("Free inode found: %u\n", free_inode);
1561 }
1562
1563 #ifndef READ_ONLY
1564 static errcode_t copy_file(int fd, ext2_ino_t newfile)
1565 {
1566         ext2_file_t     e2_file;
1567         errcode_t       retval;
1568         int             got;
1569         unsigned int    written;
1570         char            buf[8192];
1571         char            *ptr;
1572
1573         retval = ext2fs_file_open(current_fs, newfile,
1574                                   EXT2_FILE_WRITE, &e2_file);
1575         if (retval)
1576                 return retval;
1577
1578         while (1) {
1579                 got = read(fd, buf, sizeof(buf));
1580                 if (got == 0)
1581                         break;
1582                 if (got < 0) {
1583                         retval = errno;
1584                         goto fail;
1585                 }
1586                 ptr = buf;
1587                 while (got > 0) {
1588                         retval = ext2fs_file_write(e2_file, ptr,
1589                                                    got, &written);
1590                         if (retval)
1591                                 goto fail;
1592
1593                         got -= written;
1594                         ptr += written;
1595                 }
1596         }
1597         retval = ext2fs_file_close(e2_file);
1598         return retval;
1599
1600 fail:
1601         (void) ext2fs_file_close(e2_file);
1602         return retval;
1603 }
1604
1605
1606 void do_write(int argc, char *argv[])
1607 {
1608         int             fd;
1609         struct stat     statbuf;
1610         ext2_ino_t      newfile;
1611         errcode_t       retval;
1612         struct ext2_inode inode;
1613
1614         if (common_args_process(argc, argv, 3, 3, "write",
1615                                 "<native file> <new file>", CHECK_FS_RW))
1616                 return;
1617
1618         fd = open(argv[1], O_RDONLY);
1619         if (fd < 0) {
1620                 com_err(argv[1], errno, 0);
1621                 return;
1622         }
1623         if (fstat(fd, &statbuf) < 0) {
1624                 com_err(argv[1], errno, 0);
1625                 close(fd);
1626                 return;
1627         }
1628
1629         retval = ext2fs_namei(current_fs, root, cwd, argv[2], &newfile);
1630         if (retval == 0) {
1631                 com_err(argv[0], 0, "The file '%s' already exists\n", argv[2]);
1632                 close(fd);
1633                 return;
1634         }
1635
1636         retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1637         if (retval) {
1638                 com_err(argv[0], retval, 0);
1639                 close(fd);
1640                 return;
1641         }
1642         printf("Allocated inode: %u\n", newfile);
1643         retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1644                              EXT2_FT_REG_FILE);
1645         if (retval == EXT2_ET_DIR_NO_SPACE) {
1646                 retval = ext2fs_expand_dir(current_fs, cwd);
1647                 if (retval) {
1648                         com_err(argv[0], retval, "while expanding directory");
1649                         close(fd);
1650                         return;
1651                 }
1652                 retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1653                                      EXT2_FT_REG_FILE);
1654         }
1655         if (retval) {
1656                 com_err(argv[2], retval, 0);
1657                 close(fd);
1658                 return;
1659         }
1660         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile))
1661                 com_err(argv[0], 0, "Warning: inode already set");
1662         ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0);
1663         memset(&inode, 0, sizeof(inode));
1664         inode.i_mode = (statbuf.st_mode & ~LINUX_S_IFMT) | LINUX_S_IFREG;
1665         inode.i_atime = inode.i_ctime = inode.i_mtime =
1666                 current_fs->now ? current_fs->now : time(0);
1667         inode.i_links_count = 1;
1668         inode.i_size = statbuf.st_size;
1669         if (current_fs->super->s_feature_incompat &
1670             EXT3_FEATURE_INCOMPAT_EXTENTS)
1671                 inode.i_flags |= EXT4_EXTENTS_FL;
1672         if (debugfs_write_new_inode(newfile, &inode, argv[0])) {
1673                 close(fd);
1674                 return;
1675         }
1676         if (LINUX_S_ISREG(inode.i_mode)) {
1677                 retval = copy_file(fd, newfile);
1678                 if (retval)
1679                         com_err("copy_file", retval, 0);
1680         }
1681         close(fd);
1682 }
1683
1684 void do_mknod(int argc, char *argv[])
1685 {
1686         unsigned long   mode, major, minor;
1687         ext2_ino_t      newfile;
1688         errcode_t       retval;
1689         struct ext2_inode inode;
1690         int             filetype, nr;
1691
1692         if (check_fs_open(argv[0]))
1693                 return;
1694         if (argc < 3 || argv[2][1]) {
1695         usage:
1696                 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1697                 return;
1698         }
1699         mode = minor = major = 0;
1700         switch (argv[2][0]) {
1701                 case 'p':
1702                         mode = LINUX_S_IFIFO;
1703                         filetype = EXT2_FT_FIFO;
1704                         nr = 3;
1705                         break;
1706                 case 'c':
1707                         mode = LINUX_S_IFCHR;
1708                         filetype = EXT2_FT_CHRDEV;
1709                         nr = 5;
1710                         break;
1711                 case 'b':
1712                         mode = LINUX_S_IFBLK;
1713                         filetype = EXT2_FT_BLKDEV;
1714                         nr = 5;
1715                         break;
1716                 default:
1717                         filetype = 0;
1718                         nr = 0;
1719         }
1720         if (nr == 5) {
1721                 major = strtoul(argv[3], argv+3, 0);
1722                 minor = strtoul(argv[4], argv+4, 0);
1723                 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1724                         nr = 0;
1725         }
1726         if (argc != nr)
1727                 goto usage;
1728         if (check_fs_read_write(argv[0]))
1729                 return;
1730         retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1731         if (retval) {
1732                 com_err(argv[0], retval, 0);
1733                 return;
1734         }
1735         printf("Allocated inode: %u\n", newfile);
1736         retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype);
1737         if (retval == EXT2_ET_DIR_NO_SPACE) {
1738                 retval = ext2fs_expand_dir(current_fs, cwd);
1739                 if (retval) {
1740                         com_err(argv[0], retval, "while expanding directory");
1741                         return;
1742                 }
1743                 retval = ext2fs_link(current_fs, cwd, argv[1], newfile,
1744                                      filetype);
1745         }
1746         if (retval) {
1747                 com_err(argv[1], retval, 0);
1748                 return;
1749         }
1750         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile))
1751                 com_err(argv[0], 0, "Warning: inode already set");
1752         ext2fs_mark_inode_bitmap2(current_fs->inode_map, newfile);
1753         ext2fs_mark_ib_dirty(current_fs);
1754         memset(&inode, 0, sizeof(inode));
1755         inode.i_mode = mode;
1756         inode.i_atime = inode.i_ctime = inode.i_mtime =
1757                 current_fs->now ? current_fs->now : time(0);
1758         if ((major < 256) && (minor < 256)) {
1759                 inode.i_block[0] = major*256+minor;
1760                 inode.i_block[1] = 0;
1761         } else {
1762                 inode.i_block[0] = 0;
1763                 inode.i_block[1] = (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12);
1764         }
1765         inode.i_links_count = 1;
1766         if (debugfs_write_new_inode(newfile, &inode, argv[0]))
1767                 return;
1768 }
1769
1770 void do_mkdir(int argc, char *argv[])
1771 {
1772         char    *cp;
1773         ext2_ino_t      parent;
1774         char    *name;
1775         errcode_t retval;
1776
1777         if (common_args_process(argc, argv, 2, 2, "mkdir",
1778                                 "<filename>", CHECK_FS_RW))
1779                 return;
1780
1781         cp = strrchr(argv[1], '/');
1782         if (cp) {
1783                 *cp = 0;
1784                 parent = string_to_inode(argv[1]);
1785                 if (!parent) {
1786                         com_err(argv[1], ENOENT, 0);
1787                         return;
1788                 }
1789                 name = cp+1;
1790         } else {
1791                 parent = cwd;
1792                 name = argv[1];
1793         }
1794
1795 try_again:
1796         retval = ext2fs_mkdir(current_fs, parent, 0, name);
1797         if (retval == EXT2_ET_DIR_NO_SPACE) {
1798                 retval = ext2fs_expand_dir(current_fs, parent);
1799                 if (retval) {
1800                         com_err(argv[0], retval, "while expanding directory");
1801                         return;
1802                 }
1803                 goto try_again;
1804         }
1805         if (retval) {
1806                 com_err("ext2fs_mkdir", retval, 0);
1807                 return;
1808         }
1809
1810 }
1811
1812 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1813                                e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1814                                blk64_t ref_block EXT2FS_ATTR((unused)),
1815                                int ref_offset EXT2FS_ATTR((unused)),
1816                                void *private EXT2FS_ATTR((unused)))
1817 {
1818         blk64_t block;
1819
1820         block = *blocknr;
1821         ext2fs_block_alloc_stats2(fs, block, -1);
1822         return 0;
1823 }
1824
1825 static void kill_file_by_inode(ext2_ino_t inode)
1826 {
1827         struct ext2_inode inode_buf;
1828
1829         if (debugfs_read_inode(inode, &inode_buf, 0))
1830                 return;
1831         inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1832         if (debugfs_write_inode(inode, &inode_buf, 0))
1833                 return;
1834         if (!ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf))
1835                 return;
1836
1837         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
1838                               release_blocks_proc, NULL);
1839         printf("\n");
1840         ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1841                                   LINUX_S_ISDIR(inode_buf.i_mode));
1842 }
1843
1844
1845 void do_kill_file(int argc, char *argv[])
1846 {
1847         ext2_ino_t inode_num;
1848
1849         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1850                 return;
1851
1852         kill_file_by_inode(inode_num);
1853 }
1854
1855 void do_rm(int argc, char *argv[])
1856 {
1857         int retval;
1858         ext2_ino_t inode_num;
1859         struct ext2_inode inode;
1860
1861         if (common_args_process(argc, argv, 2, 2, "rm",
1862                                 "<filename>", CHECK_FS_RW))
1863                 return;
1864
1865         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1866         if (retval) {
1867                 com_err(argv[0], retval, "while trying to resolve filename");
1868                 return;
1869         }
1870
1871         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1872                 return;
1873
1874         if (LINUX_S_ISDIR(inode.i_mode)) {
1875                 com_err(argv[0], 0, "file is a directory");
1876                 return;
1877         }
1878
1879         --inode.i_links_count;
1880         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1881                 return;
1882
1883         unlink_file_by_name(argv[1]);
1884         if (inode.i_links_count == 0)
1885                 kill_file_by_inode(inode_num);
1886 }
1887
1888 struct rd_struct {
1889         ext2_ino_t      parent;
1890         int             empty;
1891 };
1892
1893 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1894                       int       entry EXT2FS_ATTR((unused)),
1895                       struct ext2_dir_entry *dirent,
1896                       int       offset EXT2FS_ATTR((unused)),
1897                       int       blocksize EXT2FS_ATTR((unused)),
1898                       char      *buf EXT2FS_ATTR((unused)),
1899                       void      *private)
1900 {
1901         struct rd_struct *rds = (struct rd_struct *) private;
1902
1903         if (dirent->inode == 0)
1904                 return 0;
1905         if (((dirent->name_len&0xFF) == 1) && (dirent->name[0] == '.'))
1906                 return 0;
1907         if (((dirent->name_len&0xFF) == 2) && (dirent->name[0] == '.') &&
1908             (dirent->name[1] == '.')) {
1909                 rds->parent = dirent->inode;
1910                 return 0;
1911         }
1912         rds->empty = 0;
1913         return 0;
1914 }
1915
1916 void do_rmdir(int argc, char *argv[])
1917 {
1918         int retval;
1919         ext2_ino_t inode_num;
1920         struct ext2_inode inode;
1921         struct rd_struct rds;
1922
1923         if (common_args_process(argc, argv, 2, 2, "rmdir",
1924                                 "<filename>", CHECK_FS_RW))
1925                 return;
1926
1927         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1928         if (retval) {
1929                 com_err(argv[0], retval, "while trying to resolve filename");
1930                 return;
1931         }
1932
1933         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1934                 return;
1935
1936         if (!LINUX_S_ISDIR(inode.i_mode)) {
1937                 com_err(argv[0], 0, "file is not a directory");
1938                 return;
1939         }
1940
1941         rds.parent = 0;
1942         rds.empty = 1;
1943
1944         retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1945                                     0, rmdir_proc, &rds);
1946         if (retval) {
1947                 com_err(argv[0], retval, "while iterating over directory");
1948                 return;
1949         }
1950         if (rds.empty == 0) {
1951                 com_err(argv[0], 0, "directory not empty");
1952                 return;
1953         }
1954
1955         inode.i_links_count = 0;
1956         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1957                 return;
1958
1959         unlink_file_by_name(argv[1]);
1960         kill_file_by_inode(inode_num);
1961
1962         if (rds.parent) {
1963                 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
1964                         return;
1965                 if (inode.i_links_count > 1)
1966                         inode.i_links_count--;
1967                 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
1968                         return;
1969         }
1970 }
1971 #endif /* READ_ONLY */
1972
1973 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
1974                             char *argv[] EXT2FS_ATTR((unused)))
1975 {
1976         if (current_fs)
1977                 printf("Open mode: read-%s\n",
1978                        current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
1979         printf("Filesystem in use: %s\n",
1980                current_fs ? current_fs->device_name : "--none--");
1981 }
1982
1983 #ifndef READ_ONLY
1984 void do_expand_dir(int argc, char *argv[])
1985 {
1986         ext2_ino_t inode;
1987         int retval;
1988
1989         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1990                 return;
1991
1992         retval = ext2fs_expand_dir(current_fs, inode);
1993         if (retval)
1994                 com_err("ext2fs_expand_dir", retval, 0);
1995         return;
1996 }
1997
1998 void do_features(int argc, char *argv[])
1999 {
2000         int     i;
2001
2002         if (check_fs_open(argv[0]))
2003                 return;
2004
2005         if ((argc != 1) && check_fs_read_write(argv[0]))
2006                 return;
2007         for (i=1; i < argc; i++) {
2008                 if (e2p_edit_feature(argv[i],
2009                                      &current_fs->super->s_feature_compat, 0))
2010                         com_err(argv[0], 0, "Unknown feature: %s\n",
2011                                 argv[i]);
2012                 else
2013                         ext2fs_mark_super_dirty(current_fs);
2014         }
2015         print_features(current_fs->super, stdout);
2016 }
2017 #endif /* READ_ONLY */
2018
2019 void do_bmap(int argc, char *argv[])
2020 {
2021         ext2_ino_t      ino;
2022         blk64_t         blk, pblk;
2023         int             err;
2024         errcode_t       errcode;
2025
2026         if (common_args_process(argc, argv, 3, 3, argv[0],
2027                                 "<file> logical_blk", 0))
2028                 return;
2029
2030         ino = string_to_inode(argv[1]);
2031         if (!ino)
2032                 return;
2033         blk = parse_ulong(argv[2], argv[0], "logical_block", &err);
2034
2035         errcode = ext2fs_bmap2(current_fs, ino, 0, 0, 0, blk, 0, &pblk);
2036         if (errcode) {
2037                 com_err("argv[0]", errcode,
2038                         "while mapping logical block %llu\n", blk);
2039                 return;
2040         }
2041         printf("%llu\n", pblk);
2042 }
2043
2044 void do_imap(int argc, char *argv[])
2045 {
2046         ext2_ino_t      ino;
2047         unsigned long   group, block, block_nr, offset;
2048
2049         if (common_args_process(argc, argv, 2, 2, argv[0],
2050                                 "<file>", 0))
2051                 return;
2052         ino = string_to_inode(argv[1]);
2053         if (!ino)
2054                 return;
2055
2056         group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
2057         offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
2058                 EXT2_INODE_SIZE(current_fs->super);
2059         block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
2060         if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
2061                 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
2062                         group);
2063                 return;
2064         }
2065         block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
2066                 block;
2067         offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
2068
2069         printf("Inode %d is part of block group %lu\n"
2070                "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
2071                block_nr, offset);
2072
2073 }
2074
2075 #ifndef READ_ONLY
2076 void do_set_current_time(int argc, char *argv[])
2077 {
2078         time_t now;
2079
2080         if (common_args_process(argc, argv, 2, 2, argv[0],
2081                                 "<time>", 0))
2082                 return;
2083
2084         now = string_to_time(argv[1]);
2085         if (now == ((time_t) -1)) {
2086                 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
2087                         argv[1]);
2088                 return;
2089
2090         } else {
2091                 printf("Setting current time to %s\n", time_to_string(now));
2092                 current_fs->now = now;
2093         }
2094 }
2095 #endif /* READ_ONLY */
2096
2097 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
2098 {
2099         int compat, bit, ret;
2100         unsigned int feature_mask;
2101
2102         if (name) {
2103                 if (feature_type == E2P_FS_FEATURE)
2104                         ret = e2p_string2feature(name, &compat, &feature_mask);
2105                 else
2106                         ret = e2p_jrnl_string2feature(name, &compat,
2107                                                       &feature_mask);
2108                 if (ret)
2109                         return ret;
2110
2111                 if (!(supp[compat] & feature_mask))
2112                         return 1;
2113         } else {
2114                 for (compat = 0; compat < 3; compat++) {
2115                         for (bit = 0, feature_mask = 1; bit < 32;
2116                              bit++, feature_mask <<= 1) {
2117                                 if (supp[compat] & feature_mask) {
2118                                         if (feature_type == E2P_FS_FEATURE)
2119                                                 fprintf(stdout, " %s",
2120                                                 e2p_feature2string(compat,
2121                                                 feature_mask));
2122                                         else
2123                                                 fprintf(stdout, " %s",
2124                                                 e2p_jrnl_feature2string(compat,
2125                                                 feature_mask));
2126                                 }
2127                         }
2128                 }
2129                 fprintf(stdout, "\n");
2130         }
2131
2132         return 0;
2133 }
2134
2135 void do_supported_features(int argc, char *argv[])
2136 {
2137         int     ret;
2138         __u32   supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2139                             EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2140                             EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2141         __u32   jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES,
2142                                  JFS_KNOWN_INCOMPAT_FEATURES,
2143                                  JFS_KNOWN_ROCOMPAT_FEATURES };
2144
2145         if (argc > 1) {
2146                 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2147                 if (ret) {
2148                         ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2149                                                 argv[1]);
2150                 }
2151                 if (ret)
2152                         com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2153                 else
2154                         fprintf(stdout, "Supported feature: %s\n", argv[1]);
2155         } else {
2156                 fprintf(stdout, "Supported features:");
2157                 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2158                 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2159         }
2160 }
2161
2162 #ifndef READ_ONLY
2163 void do_punch(int argc, char *argv[])
2164 {
2165         ext2_ino_t      ino;
2166         blk64_t         start, end;
2167         int             err;
2168         errcode_t       errcode;
2169
2170         if (common_args_process(argc, argv, 3, 4, argv[0],
2171                                 "<file> start_blk [end_blk]",
2172                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
2173                 return;
2174
2175         ino = string_to_inode(argv[1]);
2176         if (!ino)
2177                 return;
2178         start = parse_ulong(argv[2], argv[0], "logical_block", &err);
2179         if (argc == 4)
2180                 end = parse_ulong(argv[3], argv[0], "logical_block", &err);
2181         else
2182                 end = ~0;
2183
2184         errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
2185
2186         if (errcode) {
2187                 com_err(argv[0], errcode,
2188                         "while truncating inode %u from %llu to %llu\n", ino,
2189                         (unsigned long long) start, (unsigned long long) end);
2190                 return;
2191         }
2192 }
2193 #endif /* READ_ONLY */
2194
2195 void do_dump_mmp(int argc EXT2FS_ATTR((unused)), char *argv[])
2196 {
2197 #if CONFIG_MMP
2198         struct ext2_super_block *sb;
2199         struct mmp_struct *mmp_s;
2200         time_t t;
2201         errcode_t retval = 0;
2202
2203         if (check_fs_open(argv[0]))
2204                 return;
2205
2206         sb  = current_fs->super;
2207         if (sb->s_mmp_block <= sb->s_first_data_block ||
2208             sb->s_mmp_block >= ext2fs_blocks_count(sb)) {
2209                 com_err(argv[0], EXT2_ET_MMP_BAD_BLOCK, "while dumping it.\n");
2210                 return;
2211         }
2212
2213         if (current_fs->mmp_buf == NULL) {
2214                 retval = ext2fs_get_mem(current_fs->blocksize,
2215                                         &current_fs->mmp_buf);
2216                 if (retval) {
2217                         com_err(argv[0], retval, "allocating MMP buffer.\n");
2218                         return;
2219                 }
2220         }
2221
2222         mmp_s = current_fs->mmp_buf;
2223
2224         retval = ext2fs_mmp_read(current_fs, current_fs->super->s_mmp_block,
2225                                  current_fs->mmp_buf);
2226         if (retval) {
2227                 com_err(argv[0], retval, "reading MMP block.\n");
2228                 return;
2229         }
2230
2231         t = mmp_s->mmp_time;
2232         fprintf(stdout, "block_number: %llu\n", current_fs->super->s_mmp_block);
2233         fprintf(stdout, "update_interval: %d\n",
2234                 current_fs->super->s_mmp_update_interval);
2235         fprintf(stdout, "check_interval: %d\n", mmp_s->mmp_check_interval);
2236         fprintf(stdout, "sequence: %08x\n", mmp_s->mmp_seq);
2237         fprintf(stdout, "time: %lld -- %s", mmp_s->mmp_time, ctime(&t));
2238         fprintf(stdout, "node_name: %s\n", mmp_s->mmp_nodename);
2239         fprintf(stdout, "device_name: %s\n", mmp_s->mmp_bdevname);
2240         fprintf(stdout, "magic: 0x%x\n", mmp_s->mmp_magic);
2241 #else
2242         fprintf(stdout, "MMP is unsupported, please recompile with "
2243                         "--enable-mmp\n");
2244 #endif
2245 }
2246
2247 static int source_file(const char *cmd_file, int sci_idx)
2248 {
2249         FILE            *f;
2250         char            buf[256];
2251         char            *cp;
2252         int             exit_status = 0;
2253         int             retval;
2254
2255         if (strcmp(cmd_file, "-") == 0)
2256                 f = stdin;
2257         else {
2258                 f = fopen(cmd_file, "r");
2259                 if (!f) {
2260                         perror(cmd_file);
2261                         exit(1);
2262                 }
2263         }
2264         fflush(stdout);
2265         fflush(stderr);
2266         setbuf(stdout, NULL);
2267         setbuf(stderr, NULL);
2268         while (!feof(f)) {
2269                 if (fgets(buf, sizeof(buf), f) == NULL)
2270                         break;
2271                 cp = strchr(buf, '\n');
2272                 if (cp)
2273                         *cp = 0;
2274                 cp = strchr(buf, '\r');
2275                 if (cp)
2276                         *cp = 0;
2277                 printf("debugfs: %s\n", buf);
2278                 retval = ss_execute_line(sci_idx, buf);
2279                 if (retval) {
2280                         ss_perror(sci_idx, retval, buf);
2281                         exit_status++;
2282                 }
2283         }
2284         if (f != stdin)
2285                 fclose(f);
2286         return exit_status;
2287 }
2288
2289 int main(int argc, char **argv)
2290 {
2291         int             retval;
2292         int             sci_idx;
2293         const char      *usage =
2294                 "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] "
2295                 "[-R request] [-V] ["
2296 #ifndef READ_ONLY
2297                 "[-w] "
2298 #endif
2299                 "[-c] device]";
2300         int             c;
2301         int             open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
2302         char            *request = 0;
2303         int             exit_status = 0;
2304         char            *cmd_file = 0;
2305         blk64_t         superblock = 0;
2306         blk64_t         blocksize = 0;
2307         int             catastrophic = 0;
2308         char            *data_filename = 0;
2309 #ifdef READ_ONLY
2310         const char      *opt_string = "icR:f:b:s:Vd:D";
2311 #else
2312         const char      *opt_string = "iwcR:f:b:s:Vd:D";
2313 #endif
2314
2315         if (debug_prog_name == 0)
2316 #ifdef READ_ONLY
2317                 debug_prog_name = "rdebugfs";
2318 #else
2319                 debug_prog_name = "debugfs";
2320 #endif
2321         add_error_table(&et_ext2_error_table);
2322         fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2323                  E2FSPROGS_VERSION, E2FSPROGS_DATE);
2324
2325         while ((c = getopt (argc, argv, opt_string)) != EOF) {
2326                 switch (c) {
2327                 case 'R':
2328                         request = optarg;
2329                         break;
2330                 case 'f':
2331                         cmd_file = optarg;
2332                         break;
2333                 case 'd':
2334                         data_filename = optarg;
2335                         break;
2336                 case 'i':
2337                         open_flags |= EXT2_FLAG_IMAGE_FILE;
2338                         break;
2339 #ifndef READ_ONLY
2340                 case 'w':
2341                         open_flags |= EXT2_FLAG_RW;
2342                         break;
2343 #endif
2344                 case 'D':
2345                         open_flags |= EXT2_FLAG_DIRECT_IO;
2346                         break;
2347                 case 'b':
2348                         blocksize = parse_ulong(optarg, argv[0],
2349                                                 "block size", 0);
2350                         break;
2351                 case 's':
2352                         superblock = parse_ulong(optarg, argv[0],
2353                                                  "superblock number", 0);
2354                         break;
2355                 case 'c':
2356                         catastrophic = 1;
2357                         break;
2358                 case 'V':
2359                         /* Print version number and exit */
2360                         fprintf(stderr, "\tUsing %s\n",
2361                                 error_message(EXT2_ET_BASE));
2362                         exit(0);
2363                 default:
2364                         com_err(argv[0], 0, usage, debug_prog_name);
2365                         return 1;
2366                 }
2367         }
2368         if (optind < argc)
2369                 open_filesystem(argv[optind], open_flags,
2370                                 superblock, blocksize, catastrophic,
2371                                 data_filename);
2372
2373         sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2374                                        &debug_cmds, &retval);
2375         if (retval) {
2376                 ss_perror(sci_idx, retval, "creating invocation");
2377                 exit(1);
2378         }
2379         ss_get_readline(sci_idx);
2380
2381         (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
2382         if (retval) {
2383                 ss_perror(sci_idx, retval, "adding standard requests");
2384                 exit (1);
2385         }
2386         if (extra_cmds)
2387                 ss_add_request_table (sci_idx, extra_cmds, 1, &retval);
2388         if (retval) {
2389                 ss_perror(sci_idx, retval, "adding extra requests");
2390                 exit (1);
2391         }
2392         if (request) {
2393                 retval = 0;
2394                 retval = ss_execute_line(sci_idx, request);
2395                 if (retval) {
2396                         ss_perror(sci_idx, retval, request);
2397                         exit_status++;
2398                 }
2399         } else if (cmd_file) {
2400                 exit_status = source_file(cmd_file, sci_idx);
2401         } else {
2402                 ss_listen(sci_idx);
2403         }
2404
2405         ss_delete_invocation(sci_idx);
2406
2407         if (current_fs)
2408                 close_filesystem();
2409
2410         remove_error_table(&et_ext2_error_table);
2411         return exit_status;
2412 }