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         ext2_ino_t inode;
 998
 999         if (common_inode_args_process(argc, argv, &inode,
1000                                       CHECK_FS_RW | CHECK_FS_BITMAPS))
1001                 return;
1002
1003         if (!ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1004                 com_err(argv[0], 0, "Warning: inode already clear");
1005         ext2fs_unmark_inode_bitmap2(current_fs->inode_map,inode);
1006         ext2fs_mark_ib_dirty(current_fs);
1007 }
1008
1009 void do_seti(int argc, char *argv[])
1010 {
1011         ext2_ino_t inode;
1012
1013         if (common_inode_args_process(argc, argv, &inode,
1014                                       CHECK_FS_RW | CHECK_FS_BITMAPS))
1015                 return;
1016
1017         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1018                 com_err(argv[0], 0, "Warning: inode already set");
1019         ext2fs_mark_inode_bitmap2(current_fs->inode_map,inode);
1020         ext2fs_mark_ib_dirty(current_fs);
1021 }
1022 #endif /* READ_ONLY */
1023
1024 void do_testi(int argc, char *argv[])
1025 {
1026         ext2_ino_t inode;
1027
1028         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
1029                 return;
1030
1031         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1032                 printf("Inode %u is marked in use\n", inode);
1033         else
1034                 printf("Inode %u is not in use\n", inode);
1035 }
1036
1037 #ifndef READ_ONLY
1038 void do_freeb(int argc, char *argv[])
1039 {
1040         blk64_t block;
1041         blk64_t count = 1;
1042
1043         if (common_block_args_process(argc, argv, &block, &count))
1044                 return;
1045         if (check_fs_read_write(argv[0]))
1046                 return;
1047         while (count-- > 0) {
1048                 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
1049                         com_err(argv[0], 0, "Warning: block %llu already clear",
1050                                 block);
1051                 ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
1052                 block++;
1053         }
1054         ext2fs_mark_bb_dirty(current_fs);
1055 }
1056
1057 void do_setb(int argc, char *argv[])
1058 {
1059         blk64_t block;
1060         blk64_t count = 1;
1061
1062         if (common_block_args_process(argc, argv, &block, &count))
1063                 return;
1064         if (check_fs_read_write(argv[0]))
1065                 return;
1066         while (count-- > 0) {
1067                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1068                         com_err(argv[0], 0, "Warning: block %llu already set",
1069                                 block);
1070                 ext2fs_mark_block_bitmap2(current_fs->block_map,block);
1071                 block++;
1072         }
1073         ext2fs_mark_bb_dirty(current_fs);
1074 }
1075 #endif /* READ_ONLY */
1076
1077 void do_testb(int argc, char *argv[])
1078 {
1079         blk64_t block;
1080         blk64_t count = 1;
1081
1082         if (common_block_args_process(argc, argv, &block, &count))
1083                 return;
1084         while (count-- > 0) {
1085                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1086                         printf("Block %llu marked in use\n", block);
1087                 else
1088                         printf("Block %llu not in use\n", block);
1089                 block++;
1090         }
1091 }
1092
1093 #ifndef READ_ONLY
1094 static void modify_u8(char *com, const char *prompt,
1095                       const char *format, __u8 *val)
1096 {
1097         char buf[200];
1098         unsigned long v;
1099         char *tmp;
1100
1101         sprintf(buf, format, *val);
1102         printf("%30s    [%s] ", prompt, buf);
1103         if (!fgets(buf, sizeof(buf), stdin))
1104                 return;
1105         if (buf[strlen (buf) - 1] == '\n')
1106                 buf[strlen (buf) - 1] = '\0';
1107         if (!buf[0])
1108                 return;
1109         v = strtoul(buf, &tmp, 0);
1110         if (*tmp)
1111                 com_err(com, 0, "Bad value - %s", buf);
1112         else
1113                 *val = v;
1114 }
1115
1116 static void modify_u16(char *com, const char *prompt,
1117                        const char *format, __u16 *val)
1118 {
1119         char buf[200];
1120         unsigned long v;
1121         char *tmp;
1122
1123         sprintf(buf, format, *val);
1124         printf("%30s    [%s] ", prompt, buf);
1125         if (!fgets(buf, sizeof(buf), stdin))
1126                 return;
1127         if (buf[strlen (buf) - 1] == '\n')
1128                 buf[strlen (buf) - 1] = '\0';
1129         if (!buf[0])
1130                 return;
1131         v = strtoul(buf, &tmp, 0);
1132         if (*tmp)
1133                 com_err(com, 0, "Bad value - %s", buf);
1134         else
1135                 *val = v;
1136 }
1137
1138 static void modify_u32(char *com, const char *prompt,
1139                        const char *format, __u32 *val)
1140 {
1141         char buf[200];
1142         unsigned long v;
1143         char *tmp;
1144
1145         sprintf(buf, format, *val);
1146         printf("%30s    [%s] ", prompt, buf);
1147         if (!fgets(buf, sizeof(buf), stdin))
1148                 return;
1149         if (buf[strlen (buf) - 1] == '\n')
1150                 buf[strlen (buf) - 1] = '\0';
1151         if (!buf[0])
1152                 return;
1153         v = strtoul(buf, &tmp, 0);
1154         if (*tmp)
1155                 com_err(com, 0, "Bad value - %s", buf);
1156         else
1157                 *val = v;
1158 }
1159
1160
1161 void do_modify_inode(int argc, char *argv[])
1162 {
1163         struct ext2_inode inode;
1164         ext2_ino_t      inode_num;
1165         int             i;
1166         unsigned char   *frag, *fsize;
1167         char            buf[80];
1168         int             os;
1169         const char      *hex_format = "0x%x";
1170         const char      *octal_format = "0%o";
1171         const char      *decimal_format = "%d";
1172         const char      *unsignedlong_format = "%lu";
1173
1174         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1175                 return;
1176
1177         os = current_fs->super->s_creator_os;
1178
1179         if (debugfs_read_inode(inode_num, &inode, argv[1]))
1180                 return;
1181
1182         modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1183         modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1184         modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1185         modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1186         modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1187         modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1188         modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1189         modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1190         modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1191         if (os == EXT2_OS_LINUX)
1192                 modify_u16(argv[0], "Block count high", unsignedlong_format,
1193                            &inode.osd2.linux2.l_i_blocks_hi);
1194         modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1195         modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1196         modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1197 #if 0
1198         modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1199 #endif
1200         modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1201         if (LINUX_S_ISDIR(inode.i_mode))
1202                 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
1203         else
1204                 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
1205
1206         if (os == EXT2_OS_HURD)
1207                 modify_u32(argv[0], "Translator Block",
1208                             decimal_format, &inode.osd1.hurd1.h_i_translator);
1209
1210         modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1211         switch (os) {
1212             case EXT2_OS_HURD:
1213                 frag = &inode.osd2.hurd2.h_i_frag;
1214                 fsize = &inode.osd2.hurd2.h_i_fsize;
1215                 break;
1216             default:
1217                 frag = fsize = 0;
1218         }
1219         if (frag)
1220                 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1221         if (fsize)
1222                 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1223
1224         for (i=0;  i < EXT2_NDIR_BLOCKS; i++) {
1225                 sprintf(buf, "Direct Block #%d", i);
1226                 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1227         }
1228         modify_u32(argv[0], "Indirect Block", decimal_format,
1229                     &inode.i_block[EXT2_IND_BLOCK]);
1230         modify_u32(argv[0], "Double Indirect Block", decimal_format,
1231                     &inode.i_block[EXT2_DIND_BLOCK]);
1232         modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1233                     &inode.i_block[EXT2_TIND_BLOCK]);
1234         if (debugfs_write_inode(inode_num, &inode, argv[1]))
1235                 return;
1236 }
1237 #endif /* READ_ONLY */
1238
1239 void do_change_working_dir(int argc, char *argv[])
1240 {
1241         ext2_ino_t      inode;
1242         int             retval;
1243
1244         if (common_inode_args_process(argc, argv, &inode, 0))
1245                 return;
1246
1247         retval = ext2fs_check_directory(current_fs, inode);
1248         if (retval) {
1249                 com_err(argv[1], retval, 0);
1250                 return;
1251         }
1252         cwd = inode;
1253         return;
1254 }
1255
1256 void do_print_working_directory(int argc, char *argv[])
1257 {
1258         int     retval;
1259         char    *pathname = NULL;
1260
1261         if (common_args_process(argc, argv, 1, 1,
1262                                 "print_working_directory", "", 0))
1263                 return;
1264
1265         retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1266         if (retval) {
1267                 com_err(argv[0], retval,
1268                         "while trying to get pathname of cwd");
1269         }
1270         printf("[pwd]   INODE: %6u  PATH: %s\n",
1271                cwd, pathname ? pathname : "NULL");
1272         if (pathname) {
1273                 free(pathname);
1274                 pathname = NULL;
1275         }
1276         retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1277         if (retval) {
1278                 com_err(argv[0], retval,
1279                         "while trying to get pathname of root");
1280         }
1281         printf("[root]  INODE: %6u  PATH: %s\n",
1282                root, pathname ? pathname : "NULL");
1283         if (pathname) {
1284                 free(pathname);
1285                 pathname = NULL;
1286         }
1287         return;
1288 }
1289
1290 #ifndef READ_ONLY
1291 static void make_link(char *sourcename, char *destname)
1292 {
1293         ext2_ino_t      ino;
1294         struct ext2_inode inode;
1295         int             retval;
1296         ext2_ino_t      dir;
1297         char            *dest, *cp, *base_name;
1298
1299         /*
1300          * Get the source inode
1301          */
1302         ino = string_to_inode(sourcename);
1303         if (!ino)
1304                 return;
1305         base_name = strrchr(sourcename, '/');
1306         if (base_name)
1307                 base_name++;
1308         else
1309                 base_name = sourcename;
1310         /*
1311          * Figure out the destination.  First see if it exists and is
1312          * a directory.
1313          */
1314         if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1315                 dest = base_name;
1316         else {
1317                 /*
1318                  * OK, it doesn't exist.  See if it is
1319                  * '<dir>/basename' or 'basename'
1320                  */
1321                 cp = strrchr(destname, '/');
1322                 if (cp) {
1323                         *cp = 0;
1324                         dir = string_to_inode(destname);
1325                         if (!dir)
1326                                 return;
1327                         dest = cp+1;
1328                 } else {
1329                         dir = cwd;
1330                         dest = destname;
1331                 }
1332         }
1333
1334         if (debugfs_read_inode(ino, &inode, sourcename))
1335                 return;
1336
1337         retval = ext2fs_link(current_fs, dir, dest, ino,
1338                              ext2_file_type(inode.i_mode));
1339         if (retval)
1340                 com_err("make_link", retval, 0);
1341         return;
1342 }
1343
1344
1345 void do_link(int argc, char *argv[])
1346 {
1347         if (common_args_process(argc, argv, 3, 3, "link",
1348                                 "<source file> <dest_name>", CHECK_FS_RW))
1349                 return;
1350
1351         make_link(argv[1], argv[2]);
1352 }
1353
1354 static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1355                             e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1356                             blk64_t ref_block EXT2FS_ATTR((unused)),
1357                             int ref_offset EXT2FS_ATTR((unused)),
1358                             void *private EXT2FS_ATTR((unused)))
1359 {
1360         blk64_t block;
1361
1362         block = *blocknr;
1363         ext2fs_block_alloc_stats2(fs, block, +1);
1364         return 0;
1365 }
1366
1367 void do_undel(int argc, char *argv[])
1368 {
1369         ext2_ino_t      ino;
1370         struct ext2_inode inode;
1371
1372         if (common_args_process(argc, argv, 2, 3, "undelete",
1373                                 "<inode_num> [dest_name]",
1374                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1375                 return;
1376
1377         ino = string_to_inode(argv[1]);
1378         if (!ino)
1379                 return;
1380
1381         if (debugfs_read_inode(ino, &inode, argv[1]))
1382                 return;
1383
1384         if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
1385                 com_err(argv[1], 0, "Inode is not marked as deleted");
1386                 return;
1387         }
1388
1389         /*
1390          * XXX this function doesn't handle changing the links count on the
1391          * parent directory when undeleting a directory.
1392          */
1393         inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1394         inode.i_dtime = 0;
1395
1396         if (debugfs_write_inode(ino, &inode, argv[0]))
1397                 return;
1398
1399         ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1400                               mark_blocks_proc, NULL);
1401
1402         ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1403
1404         if (argc > 2)
1405                 make_link(argv[1], argv[2]);
1406 }
1407
1408 static void unlink_file_by_name(char *filename)
1409 {
1410         int             retval;
1411         ext2_ino_t      dir;
1412         char            *base_name;
1413
1414         base_name = strrchr(filename, '/');
1415         if (base_name) {
1416                 *base_name++ = '\0';
1417                 dir = string_to_inode(filename);
1418                 if (!dir)
1419                         return;
1420         } else {
1421                 dir = cwd;
1422                 base_name = filename;
1423         }
1424         retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1425         if (retval)
1426                 com_err("unlink_file_by_name", retval, 0);
1427         return;
1428 }
1429
1430 void do_unlink(int argc, char *argv[])
1431 {
1432         if (common_args_process(argc, argv, 2, 2, "link",
1433                                 "<pathname>", CHECK_FS_RW))
1434                 return;
1435
1436         unlink_file_by_name(argv[1]);
1437 }
1438 #endif /* READ_ONLY */
1439
1440 void do_find_free_block(int argc, char *argv[])
1441 {
1442         blk64_t free_blk, goal, first_free = 0;
1443         int             count;
1444         errcode_t       retval;
1445         char            *tmp;
1446
1447         if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1448                 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1449                 return;
1450         }
1451         if (check_fs_open(argv[0]))
1452                 return;
1453
1454         if (argc > 1) {
1455                 count = strtol(argv[1],&tmp,0);
1456                 if (*tmp) {
1457                         com_err(argv[0], 0, "Bad count - %s", argv[1]);
1458                         return;
1459                 }
1460         } else
1461                 count = 1;
1462
1463         if (argc > 2) {
1464                 goal = strtol(argv[2], &tmp, 0);
1465                 if (*tmp) {
1466                         com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1467                         return;
1468                 }
1469         }
1470         else
1471                 goal = current_fs->super->s_first_data_block;
1472
1473         printf("Free blocks found: ");
1474         free_blk = goal - 1;
1475         while (count-- > 0) {
1476                 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
1477                                            &free_blk);
1478                 if (first_free) {
1479                         if (first_free == free_blk)
1480                                 break;
1481                 } else
1482                         first_free = free_blk;
1483                 if (retval) {
1484                         com_err("ext2fs_new_block", retval, 0);
1485                         return;
1486                 } else
1487                         printf("%llu ", free_blk);
1488         }
1489         printf("\n");
1490 }
1491
1492 void do_find_free_inode(int argc, char *argv[])
1493 {
1494         ext2_ino_t      free_inode, dir;
1495         int             mode;
1496         int             retval;
1497         char            *tmp;
1498
1499         if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1500                 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
1501                 return;
1502         }
1503         if (check_fs_open(argv[0]))
1504                 return;
1505
1506         if (argc > 1) {
1507                 dir = strtol(argv[1], &tmp, 0);
1508                 if (*tmp) {
1509                         com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1510                         return;
1511                 }
1512         }
1513         else
1514                 dir = root;
1515         if (argc > 2) {
1516                 mode = strtol(argv[2], &tmp, 0);
1517                 if (*tmp) {
1518                         com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1519                         return;
1520                 }
1521         } else
1522                 mode = 010755;
1523
1524         retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1525         if (retval)
1526                 com_err("ext2fs_new_inode", retval, 0);
1527         else
1528                 printf("Free inode found: %u\n", free_inode);
1529 }
1530
1531 #ifndef READ_ONLY
1532 static errcode_t copy_file(int fd, ext2_ino_t newfile)
1533 {
1534         ext2_file_t     e2_file;
1535         errcode_t       retval;
1536         int             got;
1537         unsigned int    written;
1538         char            buf[8192];
1539         char            *ptr;
1540
1541         retval = ext2fs_file_open(current_fs, newfile,
1542                                   EXT2_FILE_WRITE, &e2_file);
1543         if (retval)
1544                 return retval;
1545
1546         while (1) {
1547                 got = read(fd, buf, sizeof(buf));
1548                 if (got == 0)
1549                         break;
1550                 if (got < 0) {
1551                         retval = errno;
1552                         goto fail;
1553                 }
1554                 ptr = buf;
1555                 while (got > 0) {
1556                         retval = ext2fs_file_write(e2_file, ptr,
1557                                                    got, &written);
1558                         if (retval)
1559                                 goto fail;
1560
1561                         got -= written;
1562                         ptr += written;
1563                 }
1564         }
1565         retval = ext2fs_file_close(e2_file);
1566         return retval;
1567
1568 fail:
1569         (void) ext2fs_file_close(e2_file);
1570         return retval;
1571 }
1572
1573
1574 void do_write(int argc, char *argv[])
1575 {
1576         int             fd;
1577         struct stat     statbuf;
1578         ext2_ino_t      newfile;
1579         errcode_t       retval;
1580         struct ext2_inode inode;
1581
1582         if (common_args_process(argc, argv, 3, 3, "write",
1583                                 "<native file> <new file>", CHECK_FS_RW))
1584                 return;
1585
1586         fd = open(argv[1], O_RDONLY);
1587         if (fd < 0) {
1588                 com_err(argv[1], errno, 0);
1589                 return;
1590         }
1591         if (fstat(fd, &statbuf) < 0) {
1592                 com_err(argv[1], errno, 0);
1593                 close(fd);
1594                 return;
1595         }
1596
1597         retval = ext2fs_namei(current_fs, root, cwd, argv[2], &newfile);
1598         if (retval == 0) {
1599                 com_err(argv[0], 0, "The file '%s' already exists\n", argv[2]);
1600                 close(fd);
1601                 return;
1602         }
1603
1604         retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1605         if (retval) {
1606                 com_err(argv[0], retval, 0);
1607                 close(fd);
1608                 return;
1609         }
1610         printf("Allocated inode: %u\n", newfile);
1611         retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1612                              EXT2_FT_REG_FILE);
1613         if (retval == EXT2_ET_DIR_NO_SPACE) {
1614                 retval = ext2fs_expand_dir(current_fs, cwd);
1615                 if (retval) {
1616                         com_err(argv[0], retval, "while expanding directory");
1617                         close(fd);
1618                         return;
1619                 }
1620                 retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1621                                      EXT2_FT_REG_FILE);
1622         }
1623         if (retval) {
1624                 com_err(argv[2], retval, 0);
1625                 close(fd);
1626                 return;
1627         }
1628         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile))
1629                 com_err(argv[0], 0, "Warning: inode already set");
1630         ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0);
1631         memset(&inode, 0, sizeof(inode));
1632         inode.i_mode = (statbuf.st_mode & ~LINUX_S_IFMT) | LINUX_S_IFREG;
1633         inode.i_atime = inode.i_ctime = inode.i_mtime =
1634                 current_fs->now ? current_fs->now : time(0);
1635         inode.i_links_count = 1;
1636         inode.i_size = statbuf.st_size;
1637         if (current_fs->super->s_feature_incompat &
1638             EXT3_FEATURE_INCOMPAT_EXTENTS)
1639                 inode.i_flags |= EXT4_EXTENTS_FL;
1640         if (debugfs_write_new_inode(newfile, &inode, argv[0])) {
1641                 close(fd);
1642                 return;
1643         }
1644         if (LINUX_S_ISREG(inode.i_mode)) {
1645                 retval = copy_file(fd, newfile);
1646                 if (retval)
1647                         com_err("copy_file", retval, 0);
1648         }
1649         close(fd);
1650 }
1651
1652 void do_mknod(int argc, char *argv[])
1653 {
1654         unsigned long   mode, major, minor;
1655         ext2_ino_t      newfile;
1656         errcode_t       retval;
1657         struct ext2_inode inode;
1658         int             filetype, nr;
1659
1660         if (check_fs_open(argv[0]))
1661                 return;
1662         if (argc < 3 || argv[2][1]) {
1663         usage:
1664                 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1665                 return;
1666         }
1667         mode = minor = major = 0;
1668         switch (argv[2][0]) {
1669                 case 'p':
1670                         mode = LINUX_S_IFIFO;
1671                         filetype = EXT2_FT_FIFO;
1672                         nr = 3;
1673                         break;
1674                 case 'c':
1675                         mode = LINUX_S_IFCHR;
1676                         filetype = EXT2_FT_CHRDEV;
1677                         nr = 5;
1678                         break;
1679                 case 'b':
1680                         mode = LINUX_S_IFBLK;
1681                         filetype = EXT2_FT_BLKDEV;
1682                         nr = 5;
1683                         break;
1684                 default:
1685                         filetype = 0;
1686                         nr = 0;
1687         }
1688         if (nr == 5) {
1689                 major = strtoul(argv[3], argv+3, 0);
1690                 minor = strtoul(argv[4], argv+4, 0);
1691                 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1692                         nr = 0;
1693         }
1694         if (argc != nr)
1695                 goto usage;
1696         if (check_fs_read_write(argv[0]))
1697                 return;
1698         retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1699         if (retval) {
1700                 com_err(argv[0], retval, 0);
1701                 return;
1702         }
1703         printf("Allocated inode: %u\n", newfile);
1704         retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype);
1705         if (retval == EXT2_ET_DIR_NO_SPACE) {
1706                 retval = ext2fs_expand_dir(current_fs, cwd);
1707                 if (retval) {
1708                         com_err(argv[0], retval, "while expanding directory");
1709                         return;
1710                 }
1711                 retval = ext2fs_link(current_fs, cwd, argv[1], newfile,
1712                                      filetype);
1713         }
1714         if (retval) {
1715                 com_err(argv[1], retval, 0);
1716                 return;
1717         }
1718         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile))
1719                 com_err(argv[0], 0, "Warning: inode already set");
1720         ext2fs_mark_inode_bitmap2(current_fs->inode_map, newfile);
1721         ext2fs_mark_ib_dirty(current_fs);
1722         memset(&inode, 0, sizeof(inode));
1723         inode.i_mode = mode;
1724         inode.i_atime = inode.i_ctime = inode.i_mtime =
1725                 current_fs->now ? current_fs->now : time(0);
1726         if ((major < 256) && (minor < 256)) {
1727                 inode.i_block[0] = major*256+minor;
1728                 inode.i_block[1] = 0;
1729         } else {
1730                 inode.i_block[0] = 0;
1731                 inode.i_block[1] = (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12);
1732         }
1733         inode.i_links_count = 1;
1734         if (debugfs_write_new_inode(newfile, &inode, argv[0]))
1735                 return;
1736 }
1737
1738 void do_mkdir(int argc, char *argv[])
1739 {
1740         char    *cp;
1741         ext2_ino_t      parent;
1742         char    *name;
1743         errcode_t retval;
1744
1745         if (common_args_process(argc, argv, 2, 2, "mkdir",
1746                                 "<filename>", CHECK_FS_RW))
1747                 return;
1748
1749         cp = strrchr(argv[1], '/');
1750         if (cp) {
1751                 *cp = 0;
1752                 parent = string_to_inode(argv[1]);
1753                 if (!parent) {
1754                         com_err(argv[1], ENOENT, 0);
1755                         return;
1756                 }
1757                 name = cp+1;
1758         } else {
1759                 parent = cwd;
1760                 name = argv[1];
1761         }
1762
1763 try_again:
1764         retval = ext2fs_mkdir(current_fs, parent, 0, name);
1765         if (retval == EXT2_ET_DIR_NO_SPACE) {
1766                 retval = ext2fs_expand_dir(current_fs, parent);
1767                 if (retval) {
1768                         com_err(argv[0], retval, "while expanding directory");
1769                         return;
1770                 }
1771                 goto try_again;
1772         }
1773         if (retval) {
1774                 com_err("ext2fs_mkdir", retval, 0);
1775                 return;
1776         }
1777
1778 }
1779
1780 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1781                                e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1782                                blk64_t ref_block EXT2FS_ATTR((unused)),
1783                                int ref_offset EXT2FS_ATTR((unused)),
1784                                void *private EXT2FS_ATTR((unused)))
1785 {
1786         blk64_t block;
1787
1788         block = *blocknr;
1789         ext2fs_block_alloc_stats2(fs, block, -1);
1790         return 0;
1791 }
1792
1793 static void kill_file_by_inode(ext2_ino_t inode)
1794 {
1795         struct ext2_inode inode_buf;
1796
1797         if (debugfs_read_inode(inode, &inode_buf, 0))
1798                 return;
1799         inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1800         if (debugfs_write_inode(inode, &inode_buf, 0))
1801                 return;
1802         if (!ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf))
1803                 return;
1804
1805         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
1806                               release_blocks_proc, NULL);
1807         printf("\n");
1808         ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1809                                   LINUX_S_ISDIR(inode_buf.i_mode));
1810 }
1811
1812
1813 void do_kill_file(int argc, char *argv[])
1814 {
1815         ext2_ino_t inode_num;
1816
1817         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1818                 return;
1819
1820         kill_file_by_inode(inode_num);
1821 }
1822
1823 void do_rm(int argc, char *argv[])
1824 {
1825         int retval;
1826         ext2_ino_t inode_num;
1827         struct ext2_inode inode;
1828
1829         if (common_args_process(argc, argv, 2, 2, "rm",
1830                                 "<filename>", CHECK_FS_RW))
1831                 return;
1832
1833         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1834         if (retval) {
1835                 com_err(argv[0], retval, "while trying to resolve filename");
1836                 return;
1837         }
1838
1839         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1840                 return;
1841
1842         if (LINUX_S_ISDIR(inode.i_mode)) {
1843                 com_err(argv[0], 0, "file is a directory");
1844                 return;
1845         }
1846
1847         --inode.i_links_count;
1848         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1849                 return;
1850
1851         unlink_file_by_name(argv[1]);
1852         if (inode.i_links_count == 0)
1853                 kill_file_by_inode(inode_num);
1854 }
1855
1856 struct rd_struct {
1857         ext2_ino_t      parent;
1858         int             empty;
1859 };
1860
1861 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1862                       int       entry EXT2FS_ATTR((unused)),
1863                       struct ext2_dir_entry *dirent,
1864                       int       offset EXT2FS_ATTR((unused)),
1865                       int       blocksize EXT2FS_ATTR((unused)),
1866                       char      *buf EXT2FS_ATTR((unused)),
1867                       void      *private)
1868 {
1869         struct rd_struct *rds = (struct rd_struct *) private;
1870
1871         if (dirent->inode == 0)
1872                 return 0;
1873         if (((dirent->name_len&0xFF) == 1) && (dirent->name[0] == '.'))
1874                 return 0;
1875         if (((dirent->name_len&0xFF) == 2) && (dirent->name[0] == '.') &&
1876             (dirent->name[1] == '.')) {
1877                 rds->parent = dirent->inode;
1878                 return 0;
1879         }
1880         rds->empty = 0;
1881         return 0;
1882 }
1883
1884 void do_rmdir(int argc, char *argv[])
1885 {
1886         int retval;
1887         ext2_ino_t inode_num;
1888         struct ext2_inode inode;
1889         struct rd_struct rds;
1890
1891         if (common_args_process(argc, argv, 2, 2, "rmdir",
1892                                 "<filename>", CHECK_FS_RW))
1893                 return;
1894
1895         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1896         if (retval) {
1897                 com_err(argv[0], retval, "while trying to resolve filename");
1898                 return;
1899         }
1900
1901         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1902                 return;
1903
1904         if (!LINUX_S_ISDIR(inode.i_mode)) {
1905                 com_err(argv[0], 0, "file is not a directory");
1906                 return;
1907         }
1908
1909         rds.parent = 0;
1910         rds.empty = 1;
1911
1912         retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1913                                     0, rmdir_proc, &rds);
1914         if (retval) {
1915                 com_err(argv[0], retval, "while iterating over directory");
1916                 return;
1917         }
1918         if (rds.empty == 0) {
1919                 com_err(argv[0], 0, "directory not empty");
1920                 return;
1921         }
1922
1923         inode.i_links_count = 0;
1924         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1925                 return;
1926
1927         unlink_file_by_name(argv[1]);
1928         kill_file_by_inode(inode_num);
1929
1930         if (rds.parent) {
1931                 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
1932                         return;
1933                 if (inode.i_links_count > 1)
1934                         inode.i_links_count--;
1935                 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
1936                         return;
1937         }
1938 }
1939 #endif /* READ_ONLY */
1940
1941 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
1942                             char *argv[] EXT2FS_ATTR((unused)))
1943 {
1944         FILE *out = stdout;
1945
1946         if (current_fs)
1947                 fprintf(out, "Open mode: read-%s\n",
1948                         current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
1949         fprintf(out, "Filesystem in use: %s\n",
1950                 current_fs ? current_fs->device_name : "--none--");
1951 }
1952
1953 #ifndef READ_ONLY
1954 void do_expand_dir(int argc, char *argv[])
1955 {
1956         ext2_ino_t inode;
1957         int retval;
1958
1959         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1960                 return;
1961
1962         retval = ext2fs_expand_dir(current_fs, inode);
1963         if (retval)
1964                 com_err("ext2fs_expand_dir", retval, 0);
1965         return;
1966 }
1967
1968 void do_features(int argc, char *argv[])
1969 {
1970         int     i;
1971
1972         if (check_fs_open(argv[0]))
1973                 return;
1974
1975         if ((argc != 1) && check_fs_read_write(argv[0]))
1976                 return;
1977         for (i=1; i < argc; i++) {
1978                 if (e2p_edit_feature(argv[i],
1979                                      &current_fs->super->s_feature_compat, 0))
1980                         com_err(argv[0], 0, "Unknown feature: %s\n",
1981                                 argv[i]);
1982                 else
1983                         ext2fs_mark_super_dirty(current_fs);
1984         }
1985         print_features(current_fs->super, stdout);
1986 }
1987 #endif /* READ_ONLY */
1988
1989 void do_bmap(int argc, char *argv[])
1990 {
1991         ext2_ino_t      ino;
1992         blk64_t         blk, pblk;
1993         int             err;
1994         errcode_t       errcode;
1995
1996         if (common_args_process(argc, argv, 3, 3, argv[0],
1997                                 "<file> logical_blk", 0))
1998                 return;
1999
2000         ino = string_to_inode(argv[1]);
2001         if (!ino)
2002                 return;
2003         blk = parse_ulong(argv[2], argv[0], "logical_block", &err);
2004
2005         errcode = ext2fs_bmap2(current_fs, ino, 0, 0, 0, blk, 0, &pblk);
2006         if (errcode) {
2007                 com_err("argv[0]", errcode,
2008                         "while mapping logical block %llu\n", blk);
2009                 return;
2010         }
2011         printf("%llu\n", pblk);
2012 }
2013
2014 void do_imap(int argc, char *argv[])
2015 {
2016         ext2_ino_t      ino;
2017         unsigned long   group, block, block_nr, offset;
2018
2019         if (common_args_process(argc, argv, 2, 2, argv[0],
2020                                 "<file>", 0))
2021                 return;
2022         ino = string_to_inode(argv[1]);
2023         if (!ino)
2024                 return;
2025
2026         group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
2027         offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
2028                 EXT2_INODE_SIZE(current_fs->super);
2029         block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
2030         if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
2031                 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
2032                         group);
2033                 return;
2034         }
2035         block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
2036                 block;
2037         offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
2038
2039         printf("Inode %d is part of block group %lu\n"
2040                "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
2041                block_nr, offset);
2042
2043 }
2044
2045 #ifndef READ_ONLY
2046 void do_set_current_time(int argc, char *argv[])
2047 {
2048         time_t now;
2049
2050         if (common_args_process(argc, argv, 2, 2, argv[0],
2051                                 "<time>", 0))
2052                 return;
2053
2054         now = string_to_time(argv[1]);
2055         if (now == ((time_t) -1)) {
2056                 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
2057                         argv[1]);
2058                 return;
2059
2060         } else {
2061                 printf("Setting current time to %s\n", time_to_string(now));
2062                 current_fs->now = now;
2063         }
2064 }
2065 #endif /* READ_ONLY */
2066
2067 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
2068 {
2069         int compat, bit, ret;
2070         unsigned int feature_mask;
2071
2072         if (name) {
2073                 if (feature_type == E2P_FS_FEATURE)
2074                         ret = e2p_string2feature(name, &compat, &feature_mask);
2075                 else
2076                         ret = e2p_jrnl_string2feature(name, &compat,
2077                                                       &feature_mask);
2078                 if (ret)
2079                         return ret;
2080
2081                 if (!(supp[compat] & feature_mask))
2082                         return 1;
2083         } else {
2084                 for (compat = 0; compat < 3; compat++) {
2085                         for (bit = 0, feature_mask = 1; bit < 32;
2086                              bit++, feature_mask <<= 1) {
2087                                 if (supp[compat] & feature_mask) {
2088                                         if (feature_type == E2P_FS_FEATURE)
2089                                                 fprintf(stdout, " %s",
2090                                                 e2p_feature2string(compat,
2091                                                 feature_mask));
2092                                         else
2093                                                 fprintf(stdout, " %s",
2094                                                 e2p_jrnl_feature2string(compat,
2095                                                 feature_mask));
2096                                 }
2097                         }
2098                 }
2099                 fprintf(stdout, "\n");
2100         }
2101
2102         return 0;
2103 }
2104
2105 void do_supported_features(int argc, char *argv[])
2106 {
2107         int     ret;
2108         __u32   supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2109                             EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2110                             EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2111         __u32   jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES,
2112                                  JFS_KNOWN_INCOMPAT_FEATURES,
2113                                  JFS_KNOWN_ROCOMPAT_FEATURES };
2114
2115         if (argc > 1) {
2116                 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2117                 if (ret) {
2118                         ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2119                                                 argv[1]);
2120                 }
2121                 if (ret)
2122                         com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2123                 else
2124                         fprintf(stdout, "Supported feature: %s\n", argv[1]);
2125         } else {
2126                 fprintf(stdout, "Supported features:");
2127                 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2128                 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2129         }
2130 }
2131
2132 #ifndef READ_ONLY
2133 void do_punch(int argc, char *argv[])
2134 {
2135         ext2_ino_t      ino;
2136         blk64_t         start, end;
2137         int             err;
2138         errcode_t       errcode;
2139
2140         if (common_args_process(argc, argv, 3, 4, argv[0],
2141                                 "<file> start_blk [end_blk]",
2142                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
2143                 return;
2144
2145         ino = string_to_inode(argv[1]);
2146         if (!ino)
2147                 return;
2148         start = parse_ulong(argv[2], argv[0], "logical_block", &err);
2149         if (argc == 4)
2150                 end = parse_ulong(argv[3], argv[0], "logical_block", &err);
2151         else
2152                 end = ~0;
2153
2154         errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
2155
2156         if (errcode) {
2157                 com_err(argv[0], errcode,
2158                         "while truncating inode %u from %llu to %llu\n", ino,
2159                         (unsigned long long) start, (unsigned long long) end);
2160                 return;
2161         }
2162 }
2163 #endif /* READ_ONLY */
2164
2165 void do_dump_mmp(int argc EXT2FS_ATTR((unused)), char *argv[])
2166 {
2167         struct ext2_super_block *sb;
2168         struct mmp_struct *mmp_s;
2169         time_t t;
2170         errcode_t retval = 0;
2171
2172         if (check_fs_open(argv[0]))
2173                 return;
2174
2175         sb  = current_fs->super;
2176         if (sb->s_mmp_block <= sb->s_first_data_block ||
2177             sb->s_mmp_block >= ext2fs_blocks_count(sb)) {
2178                 com_err(argv[0], EXT2_ET_MMP_BAD_BLOCK, "while dumping it.\n");
2179                 return;
2180         }
2181
2182         if (current_fs->mmp_buf == NULL) {
2183                 retval = ext2fs_get_mem(current_fs->blocksize,
2184                                         &current_fs->mmp_buf);
2185                 if (retval) {
2186                         com_err(argv[0], retval, "allocating MMP buffer.\n");
2187                         return;
2188                 }
2189         }
2190
2191         mmp_s = current_fs->mmp_buf;
2192
2193         retval = ext2fs_mmp_read(current_fs, current_fs->super->s_mmp_block,
2194                                  current_fs->mmp_buf);
2195         if (retval) {
2196                 com_err(argv[0], retval, "reading MMP block.\n");
2197                 return;
2198         }
2199
2200         t = mmp_s->mmp_time;
2201         fprintf(stdout, "block_number: %llu\n", current_fs->super->s_mmp_block);
2202         fprintf(stdout, "update_interval: %d\n",
2203                 current_fs->super->s_mmp_update_interval);
2204         fprintf(stdout, "check_interval: %d\n", mmp_s->mmp_check_interval);
2205         fprintf(stdout, "sequence: %08x\n", mmp_s->mmp_seq);
2206         fprintf(stdout, "time: %lld -- %s", mmp_s->mmp_time, ctime(&t));
2207         fprintf(stdout, "node_name: %s\n", mmp_s->mmp_nodename);
2208         fprintf(stdout, "device_name: %s\n", mmp_s->mmp_bdevname);
2209         fprintf(stdout, "magic: 0x%x\n", mmp_s->mmp_magic);
2210 }
2211
2212 static int source_file(const char *cmd_file, int sci_idx)
2213 {
2214         FILE            *f;
2215         char            buf[256];
2216         char            *cp;
2217         int             exit_status = 0;
2218         int             retval;
2219
2220         if (strcmp(cmd_file, "-") == 0)
2221                 f = stdin;
2222         else {
2223                 f = fopen(cmd_file, "r");
2224                 if (!f) {
2225                         perror(cmd_file);
2226                         exit(1);
2227                 }
2228         }
2229         fflush(stdout);
2230         fflush(stderr);
2231         setbuf(stdout, NULL);
2232         setbuf(stderr, NULL);
2233         while (!feof(f)) {
2234                 if (fgets(buf, sizeof(buf), f) == NULL)
2235                         break;
2236                 cp = strchr(buf, '\n');
2237                 if (cp)
2238                         *cp = 0;
2239                 cp = strchr(buf, '\r');
2240                 if (cp)
2241                         *cp = 0;
2242                 printf("debugfs: %s\n", buf);
2243                 retval = ss_execute_line(sci_idx, buf);
2244                 if (retval) {
2245                         ss_perror(sci_idx, retval, buf);
2246                         exit_status++;
2247                 }
2248         }
2249         if (f != stdin)
2250                 fclose(f);
2251         return exit_status;
2252 }
2253
2254 int main(int argc, char **argv)
2255 {
2256         int             retval;
2257         int             sci_idx;
2258         const char      *usage =
2259                 "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] "
2260                 "[-R request] [-V] ["
2261 #ifndef READ_ONLY
2262                 "[-w] "
2263 #endif
2264                 "[-c] device]";
2265         int             c;
2266         int             open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
2267         char            *request = 0;
2268         int             exit_status = 0;
2269         char            *cmd_file = 0;
2270         blk64_t         superblock = 0;
2271         blk64_t         blocksize = 0;
2272         int             catastrophic = 0;
2273         char            *data_filename = 0;
2274 #ifdef READ_ONLY
2275         const char      *opt_string = "icR:f:b:s:Vd:D";
2276 #else
2277         const char      *opt_string = "iwcR:f:b:s:Vd:D";
2278 #endif
2279
2280         if (debug_prog_name == 0)
2281 #ifdef READ_ONLY
2282                 debug_prog_name = "rdebugfs";
2283 #else
2284                 debug_prog_name = "debugfs";
2285 #endif
2286         add_error_table(&et_ext2_error_table);
2287         fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2288                  E2FSPROGS_VERSION, E2FSPROGS_DATE);
2289
2290         while ((c = getopt (argc, argv, opt_string)) != EOF) {
2291                 switch (c) {
2292                 case 'R':
2293                         request = optarg;
2294                         break;
2295                 case 'f':
2296                         cmd_file = optarg;
2297                         break;
2298                 case 'd':
2299                         data_filename = optarg;
2300                         break;
2301                 case 'i':
2302                         open_flags |= EXT2_FLAG_IMAGE_FILE;
2303                         break;
2304 #ifndef READ_ONLY
2305                 case 'w':
2306                         open_flags |= EXT2_FLAG_RW;
2307                         break;
2308 #endif
2309                 case 'D':
2310                         open_flags |= EXT2_FLAG_DIRECT_IO;
2311                         break;
2312                 case 'b':
2313                         blocksize = parse_ulong(optarg, argv[0],
2314                                                 "block size", 0);
2315                         break;
2316                 case 's':
2317                         superblock = parse_ulong(optarg, argv[0],
2318                                                  "superblock number", 0);
2319                         break;
2320                 case 'c':
2321                         catastrophic = 1;
2322                         break;
2323                 case 'V':
2324                         /* Print version number and exit */
2325                         fprintf(stderr, "\tUsing %s\n",
2326                                 error_message(EXT2_ET_BASE));
2327                         exit(0);
2328                 default:
2329                         com_err(argv[0], 0, usage, debug_prog_name);
2330                         return 1;
2331                 }
2332         }
2333         if (optind < argc)
2334                 open_filesystem(argv[optind], open_flags,
2335                                 superblock, blocksize, catastrophic,
2336                                 data_filename);
2337
2338         sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2339                                        &debug_cmds, &retval);
2340         if (retval) {
2341                 ss_perror(sci_idx, retval, "creating invocation");
2342                 exit(1);
2343         }
2344         ss_get_readline(sci_idx);
2345
2346         (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
2347         if (retval) {
2348                 ss_perror(sci_idx, retval, "adding standard requests");
2349                 exit (1);
2350         }
2351         if (extra_cmds)
2352                 ss_add_request_table (sci_idx, extra_cmds, 1, &retval);
2353         if (retval) {
2354                 ss_perror(sci_idx, retval, "adding extra requests");
2355                 exit (1);
2356         }
2357         if (request) {
2358                 retval = 0;
2359                 retval = ss_execute_line(sci_idx, request);
2360                 if (retval) {
2361                         ss_perror(sci_idx, retval, request);
2362                         exit_status++;
2363                 }
2364         } else if (cmd_file) {
2365                 exit_status = source_file(cmd_file, sci_idx);
2366         } else {
2367                 ss_listen(sci_idx);
2368         }
2369
2370         ss_delete_invocation(sci_idx);
2371
2372         if (current_fs)
2373                 close_filesystem();
2374
2375         remove_error_table(&et_ext2_error_table);
2376         return exit_status;
2377 }