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
  93         if (catastrophic)
  94                 com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps");
  95         else {
  96                 retval = ext2fs_read_inode_bitmap(current_fs);
  97                 if (retval) {
  98                         com_err(device, retval, "while reading inode bitmap");
  99                         goto errout;
 100                 }
 101                 retval = ext2fs_read_block_bitmap(current_fs);
 102                 if (retval) {
 103                         com_err(device, retval, "while reading block bitmap");
 104                         goto errout;
 105                 }
 106         }
 107
 108         if (data_io) {
 109                 retval = ext2fs_set_data_io(current_fs, data_io);
 110                 if (retval) {
 111                         com_err(device, retval,
 112                                 "while setting data source");
 113                         goto errout;
 114                 }
 115         }
 116
 117         root = cwd = EXT2_ROOT_INO;
 118         return;
 119
 120 errout:
 121         retval = ext2fs_close(current_fs);
 122         if (retval)
 123                 com_err(device, retval, "while trying to close filesystem");
 124         current_fs = NULL;
 125 }
 126
 127 void do_open_filesys(int argc, char **argv)
 128 {
 129         int     c, err;
 130         int     catastrophic = 0;
 131         blk64_t superblock = 0;
 132         blk64_t blocksize = 0;
 133         int     open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
 134         char    *data_filename = 0;
 135
 136         reset_getopt();
 137         while ((c = getopt (argc, argv, "iwfecb:s:d:D")) != EOF) {
 138                 switch (c) {
 139                 case 'i':
 140                         open_flags |= EXT2_FLAG_IMAGE_FILE;
 141                         break;
 142                 case 'w':
 143 #ifdef READ_ONLY
 144                         goto print_usage;
 145 #else
 146                         open_flags |= EXT2_FLAG_RW;
 147 #endif /* READ_ONLY */
 148                         break;
 149                 case 'f':
 150                         open_flags |= EXT2_FLAG_FORCE;
 151                         break;
 152                 case 'e':
 153                         open_flags |= EXT2_FLAG_EXCLUSIVE;
 154                         break;
 155                 case 'c':
 156                         catastrophic = 1;
 157                         break;
 158                 case 'd':
 159                         data_filename = optarg;
 160                         break;
 161                 case 'D':
 162                         open_flags |= EXT2_FLAG_DIRECT_IO;
 163                         break;
 164                 case 'b':
 165                         blocksize = parse_ulong(optarg, argv[0],
 166                                                 "block size", &err);
 167                         if (err)
 168                                 return;
 169                         break;
 170                 case 's':
 171                         superblock = parse_ulong(optarg, argv[0],
 172                                                  "superblock number", &err);
 173                         if (err)
 174                                 return;
 175                         break;
 176                 default:
 177                         goto print_usage;
 178                 }
 179         }
 180         if (optind != argc-1) {
 181                 goto print_usage;
 182         }
 183         if (check_fs_not_open(argv[0]))
 184                 return;
 185         open_filesystem(argv[optind], open_flags,
 186                         superblock, blocksize, catastrophic,
 187                         data_filename);
 188         return;
 189
 190 print_usage:
 191         fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] [-c] "
 192 #ifndef READ_ONLY
 193                 "[-w] "
 194 #endif
 195                 "<device>\n", argv[0]);
 196 }
 197
 198 void do_lcd(int argc, char **argv)
 199 {
 200         if (argc != 2) {
 201                 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>");
 202                 return;
 203         }
 204
 205         if (chdir(argv[1]) == -1) {
 206                 com_err(argv[0], errno,
 207                         "while trying to change native directory to %s",
 208                         argv[1]);
 209                 return;
 210         }
 211 }
 212
 213 static void close_filesystem(NOARGS)
 214 {
 215         int     retval;
 216
 217         if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
 218                 retval = ext2fs_write_inode_bitmap(current_fs);
 219                 if (retval)
 220                         com_err("ext2fs_write_inode_bitmap", retval, 0);
 221         }
 222         if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
 223                 retval = ext2fs_write_block_bitmap(current_fs);
 224                 if (retval)
 225                         com_err("ext2fs_write_block_bitmap", retval, 0);
 226         }
 227         retval = ext2fs_close(current_fs);
 228         if (retval)
 229                 com_err("ext2fs_close", retval, 0);
 230         current_fs = NULL;
 231         return;
 232 }
 233
 234 void do_close_filesys(int argc, char **argv)
 235 {
 236         int     c;
 237
 238         if (check_fs_open(argv[0]))
 239                 return;
 240
 241         reset_getopt();
 242         while ((c = getopt (argc, argv, "a")) != EOF) {
 243                 switch (c) {
 244                 case 'a':
 245                         current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
 246                         break;
 247                 default:
 248                         goto print_usage;
 249                 }
 250         }
 251
 252         if (argc > optind) {
 253         print_usage:
 254                 com_err(0, 0, "Usage: close_filesys [-a]");
 255                 return;
 256         }
 257
 258         close_filesystem();
 259 }
 260
 261 #ifndef READ_ONLY
 262 void do_init_filesys(int argc, char **argv)
 263 {
 264         struct ext2_super_block param;
 265         errcode_t       retval;
 266         int             err;
 267
 268         if (common_args_process(argc, argv, 3, 3, "initialize",
 269                                 "<device> <blocksize>", CHECK_FS_NOTOPEN))
 270                 return;
 271
 272         memset(&param, 0, sizeof(struct ext2_super_block));
 273         ext2fs_blocks_count_set(&param, parse_ulong(argv[2], argv[0],
 274                                                     "blocks count", &err));
 275         if (err)
 276                 return;
 277         retval = ext2fs_initialize(argv[1], 0, &param,
 278                                    unix_io_manager, &current_fs);
 279         if (retval) {
 280                 com_err(argv[1], retval, "while initializing filesystem");
 281                 current_fs = NULL;
 282                 return;
 283         }
 284         root = cwd = EXT2_ROOT_INO;
 285         return;
 286 }
 287
 288 static void print_features(struct ext2_super_block * s, FILE *f)
 289 {
 290         int     i, j, printed=0;
 291         __u32   *mask = &s->s_feature_compat, m;
 292
 293         fputs("Filesystem features:", f);
 294         for (i=0; i <3; i++,mask++) {
 295                 for (j=0,m=1; j < 32; j++, m<<=1) {
 296                         if (*mask & m) {
 297                                 fprintf(f, " %s", e2p_feature2string(i, m));
 298                                 printed++;
 299                         }
 300                 }
 301         }
 302         if (printed == 0)
 303                 fputs("(none)", f);
 304         fputs("\n", f);
 305 }
 306 #endif /* READ_ONLY */
 307
 308 static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask,
 309                           const char *str, int *first, FILE *f)
 310 {
 311         if (ext2fs_bg_flags_test(fs, group, mask)) {
 312                 if (*first) {
 313                         fputs("           [", f);
 314                         *first = 0;
 315                 } else
 316                         fputs(", ", f);
 317                 fputs(str, f);
 318         }
 319 }
 320
 321 void do_show_super_stats(int argc, char *argv[])
 322 {
 323         const char *units ="block";
 324         dgrp_t  i;
 325         FILE    *out;
 326         int     c, header_only = 0;
 327         int     numdirs = 0, first, gdt_csum;
 328
 329         reset_getopt();
 330         while ((c = getopt (argc, argv, "h")) != EOF) {
 331                 switch (c) {
 332                 case 'h':
 333                         header_only++;
 334                         break;
 335                 default:
 336                         goto print_usage;
 337                 }
 338         }
 339         if (optind != argc) {
 340                 goto print_usage;
 341         }
 342         if (check_fs_open(argv[0]))
 343                 return;
 344         out = open_pager();
 345
 346         if (EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super,
 347                                        EXT4_FEATURE_RO_COMPAT_BIGALLOC))
 348                 units = "cluster";
 349
 350         list_super2(current_fs->super, out);
 351         for (i=0; i < current_fs->group_desc_count; i++)
 352                 numdirs += ext2fs_bg_used_dirs_count(current_fs, i);
 353         fprintf(out, "Directories:              %d\n", numdirs);
 354
 355         if (header_only) {
 356                 close_pager(out);
 357                 return;
 358         }
 359
 360         gdt_csum = EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super,
 361                                               EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
 362         for (i = 0; i < current_fs->group_desc_count; i++) {
 363                 fprintf(out, " Group %2d: block bitmap at %llu, "
 364                         "inode bitmap at %llu, "
 365                         "inode table at %llu\n"
 366                         "           %u free %s%s, "
 367                         "%u free %s, "
 368                         "%u used %s%s",
 369                         i, ext2fs_block_bitmap_loc(current_fs, i),
 370                         ext2fs_inode_bitmap_loc(current_fs, i),
 371                         ext2fs_inode_table_loc(current_fs, i),
 372                         ext2fs_bg_free_blocks_count(current_fs, i), units,
 373                         ext2fs_bg_free_blocks_count(current_fs, i) != 1 ?
 374                         "s" : "",
 375                         ext2fs_bg_free_inodes_count(current_fs, i),
 376                         ext2fs_bg_free_inodes_count(current_fs, i) != 1 ?
 377                         "inodes" : "inode",
 378                         ext2fs_bg_used_dirs_count(current_fs, i),
 379                         ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories"
 380                                 : "directory", gdt_csum ? ", " : "\n");
 381                 if (gdt_csum)
 382                         fprintf(out, "%u unused %s\n",
 383                                 ext2fs_bg_itable_unused(current_fs, i),
 384                                 ext2fs_bg_itable_unused(current_fs, i) != 1 ?
 385                                 "inodes" : "inode");
 386                 first = 1;
 387                 print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init",
 388                               &first, out);
 389                 print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init",
 390                               &first, out);
 391                 if (gdt_csum) {
 392                         fprintf(out, "%sChecksum 0x%04x",
 393                                 first ? "           [":", ", ext2fs_bg_checksum(current_fs, i));
 394                         first = 0;
 395                 }
 396                 if (!first)
 397                         fputs("]\n", out);
 398         }
 399         close_pager(out);
 400         return;
 401 print_usage:
 402         fprintf(stderr, "%s: Usage: show_super [-h]\n", argv[0]);
 403 }
 404
 405 #ifndef READ_ONLY
 406 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
 407                       char **argv EXT2FS_ATTR((unused)))
 408 {
 409         if (check_fs_open(argv[0]))
 410                 return;
 411         if (check_fs_read_write(argv[0]))
 412                 return;
 413
 414         if (argv[1] && !strcmp(argv[1], "-clean"))
 415                 current_fs->super->s_state |= EXT2_VALID_FS;
 416         else
 417                 current_fs->super->s_state &= ~EXT2_VALID_FS;
 418         ext2fs_mark_super_dirty(current_fs);
 419 }
 420 #endif /* READ_ONLY */
 421
 422 struct list_blocks_struct {
 423         FILE            *f;
 424         e2_blkcnt_t     total;
 425         blk64_t         first_block, last_block;
 426         e2_blkcnt_t     first_bcnt, last_bcnt;
 427         e2_blkcnt_t     first;
 428 };
 429
 430 static void finish_range(struct list_blocks_struct *lb)
 431 {
 432         if (lb->first_block == 0)
 433                 return;
 434         if (lb->first)
 435                 lb->first = 0;
 436         else
 437                 fprintf(lb->f, ", ");
 438         if (lb->first_block == lb->last_block)
 439                 fprintf(lb->f, "(%lld):%llu",
 440                         (long long)lb->first_bcnt, lb->first_block);
 441         else
 442                 fprintf(lb->f, "(%lld-%lld):%llu-%llu",
 443                         (long long)lb->first_bcnt, (long long)lb->last_bcnt,
 444                         lb->first_block, lb->last_block);
 445         lb->first_block = 0;
 446 }
 447
 448 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
 449                             blk64_t *blocknr, e2_blkcnt_t blockcnt,
 450                             blk64_t ref_block EXT2FS_ATTR((unused)),
 451                             int ref_offset EXT2FS_ATTR((unused)),
 452                             void *private)
 453 {
 454         struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
 455
 456         lb->total++;
 457         if (blockcnt >= 0) {
 458                 /*
 459                  * See if we can add on to the existing range (if it exists)
 460                  */
 461                 if (lb->first_block &&
 462                     (lb->last_block+1 == *blocknr) &&
 463                     (lb->last_bcnt+1 == blockcnt)) {
 464                         lb->last_block = *blocknr;
 465                         lb->last_bcnt = blockcnt;
 466                         return 0;
 467                 }
 468                 /*
 469                  * Start a new range.
 470                  */
 471                 finish_range(lb);
 472                 lb->first_block = lb->last_block = *blocknr;
 473                 lb->first_bcnt = lb->last_bcnt = blockcnt;
 474                 return 0;
 475         }
 476         /*
 477          * Not a normal block.  Always force a new range.
 478          */
 479         finish_range(lb);
 480         if (lb->first)
 481                 lb->first = 0;
 482         else
 483                 fprintf(lb->f, ", ");
 484         if (blockcnt == -1)
 485                 fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr);
 486         else if (blockcnt == -2)
 487                 fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr);
 488         else if (blockcnt == -3)
 489                 fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr);
 490         return 0;
 491 }
 492
 493 static void dump_xattr_string(FILE *out, const char *str, int len)
 494 {
 495         int printable = 0;
 496         int i;
 497
 498         /* check: is string "printable enough?" */
 499         for (i = 0; i < len; i++)
 500                 if (isprint(str[i]))
 501                         printable++;
 502
 503         if (printable <= len*7/8)
 504                 printable = 0;
 505
 506         for (i = 0; i < len; i++)
 507                 if (printable)
 508                         fprintf(out, isprint(str[i]) ? "%c" : "\\%03o",
 509                                 (unsigned char)str[i]);
 510                 else
 511                         fprintf(out, "%02x ", (unsigned char)str[i]);
 512 }
 513
 514 static void internal_dump_inode_extra(FILE *out,
 515                                       const char *prefix EXT2FS_ATTR((unused)),
 516                                       ext2_ino_t inode_num EXT2FS_ATTR((unused)),
 517                                       struct ext2_inode_large *inode)
 518 {
 519         struct ext2_ext_attr_entry *entry;
 520         __u32 *magic;
 521         char *start, *end;
 522         unsigned int storage_size;
 523
 524         fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
 525         if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
 526                         EXT2_GOOD_OLD_INODE_SIZE) {
 527                 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
 528                                 inode->i_extra_isize);
 529                 return;
 530         }
 531         storage_size = EXT2_INODE_SIZE(current_fs->super) -
 532                         EXT2_GOOD_OLD_INODE_SIZE -
 533                         inode->i_extra_isize;
 534         magic = (__u32 *)((char *)inode + EXT2_GOOD_OLD_INODE_SIZE +
 535                         inode->i_extra_isize);
 536         if (*magic == EXT2_EXT_ATTR_MAGIC) {
 537                 fprintf(out, "Extended attributes stored in inode body: \n");
 538                 end = (char *) inode + EXT2_INODE_SIZE(current_fs->super);
 539                 start = (char *) magic + sizeof(__u32);
 540                 entry = (struct ext2_ext_attr_entry *) start;
 541                 while (!EXT2_EXT_IS_LAST_ENTRY(entry)) {
 542                         struct ext2_ext_attr_entry *next =
 543                                 EXT2_EXT_ATTR_NEXT(entry);
 544                         if (entry->e_value_size > storage_size ||
 545                                         (char *) next >= end) {
 546                                 fprintf(out, "invalid EA entry in inode\n");
 547                                 return;
 548                         }
 549                         fprintf(out, "  ");
 550                         dump_xattr_string(out, EXT2_EXT_ATTR_NAME(entry),
 551                                           entry->e_name_len);
 552                         fprintf(out, " = \"");
 553                         dump_xattr_string(out, start + entry->e_value_offs,
 554                                                 entry->e_value_size);
 555                         fprintf(out, "\" (%u)\n", entry->e_value_size);
 556                         entry = next;
 557                 }
 558         }
 559 }
 560
 561 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
 562 {
 563         struct list_blocks_struct lb;
 564
 565         fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
 566         lb.total = 0;
 567         lb.first_block = 0;
 568         lb.f = f;
 569         lb.first = 1;
 570         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
 571                               list_blocks_proc, (void *)&lb);
 572         finish_range(&lb);
 573         if (lb.total)
 574                 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
 575         fprintf(f,"\n");
 576 }
 577
 578 static int int_log10(unsigned long long arg)
 579 {
 580         int     l = 0;
 581
 582         arg = arg / 10;
 583         while (arg) {
 584                 l++;
 585                 arg = arg / 10;
 586         }
 587         return l;
 588 }
 589
 590 #define DUMP_LEAF_EXTENTS       0x01
 591 #define DUMP_NODE_EXTENTS       0x02
 592 #define DUMP_EXTENT_TABLE       0x04
 593
 594 static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino,
 595                          int flags, int logical_width, int physical_width)
 596 {
 597         ext2_extent_handle_t    handle;
 598         struct ext2fs_extent    extent;
 599         struct ext2_extent_info info;
 600         int                     op = EXT2_EXTENT_ROOT;
 601         unsigned int            printed = 0;
 602         errcode_t               errcode;
 603
 604         errcode = ext2fs_extent_open(current_fs, ino, &handle);
 605         if (errcode)
 606                 return;
 607
 608         if (flags & DUMP_EXTENT_TABLE)
 609                 fprintf(f, "Level Entries %*s %*s Length Flags\n",
 610                         (logical_width*2)+3, "Logical",
 611                         (physical_width*2)+3, "Physical");
 612         else
 613                 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix);
 614
 615         while (1) {
 616                 errcode = ext2fs_extent_get(handle, op, &extent);
 617
 618                 if (errcode)
 619                         break;
 620
 621                 op = EXT2_EXTENT_NEXT;
 622
 623                 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 624                         continue;
 625
 626                 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
 627                         if ((flags & DUMP_LEAF_EXTENTS) == 0)
 628                                 continue;
 629                 } else {
 630                         if ((flags & DUMP_NODE_EXTENTS) == 0)
 631                                 continue;
 632                 }
 633
 634                 errcode = ext2fs_extent_get_info(handle, &info);
 635                 if (errcode)
 636                         continue;
 637
 638                 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) {
 639                         if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 640                                 continue;
 641
 642                         if (flags & DUMP_EXTENT_TABLE) {
 643                                 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 644                                         "%*llu%*s %6u\n",
 645                                         info.curr_level, info.max_depth,
 646                                         info.curr_entry, info.num_entries,
 647                                         logical_width,
 648                                         extent.e_lblk,
 649                                         logical_width,
 650                                         extent.e_lblk + (extent.e_len - 1),
 651                                         physical_width,
 652                                         extent.e_pblk,
 653                                         physical_width+3, "", extent.e_len);
 654                                 continue;
 655                         }
 656
 657                         fprintf(f, "%s(ETB%d):%lld",
 658                                 printed ? ", " : "", info.curr_level,
 659                                 extent.e_pblk);
 660                         printed = 1;
 661                         continue;
 662                 }
 663
 664                 if (flags & DUMP_EXTENT_TABLE) {
 665                         fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 666                                 "%*llu - %*llu %6u %s\n",
 667                                 info.curr_level, info.max_depth,
 668                                 info.curr_entry, info.num_entries,
 669                                 logical_width,
 670                                 extent.e_lblk,
 671                                 logical_width,
 672                                 extent.e_lblk + (extent.e_len - 1),
 673                                 physical_width,
 674                                 extent.e_pblk,
 675                                 physical_width,
 676                                 extent.e_pblk + (extent.e_len - 1),
 677                                 extent.e_len,
 678                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 679                                         "Uninit" : "");
 680                         continue;
 681                 }
 682
 683                 if (extent.e_len == 0)
 684                         continue;
 685                 else if (extent.e_len == 1)
 686                         fprintf(f,
 687                                 "%s(%lld%s):%lld",
 688                                 printed ? ", " : "",
 689                                 extent.e_lblk,
 690                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 691                                 "[u]" : "",
 692                                 extent.e_pblk);
 693                 else
 694                         fprintf(f,
 695                                 "%s(%lld-%lld%s):%lld-%lld",
 696                                 printed ? ", " : "",
 697                                 extent.e_lblk,
 698                                 extent.e_lblk + (extent.e_len - 1),
 699                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 700                                         "[u]" : "",
 701                                 extent.e_pblk,
 702                                 extent.e_pblk + (extent.e_len - 1));
 703                 printed = 1;
 704         }
 705         if (printed)
 706                 fprintf(f, "\n");
 707 }
 708
 709 void internal_dump_inode(FILE *out, const char *prefix,
 710                          ext2_ino_t inode_num, struct ext2_inode *inode,
 711                          int do_dump_blocks)
 712 {
 713         const char *i_type;
 714         char frag, fsize;
 715         int os = current_fs->super->s_creator_os;
 716         struct ext2_inode_large *large_inode;
 717         int is_large_inode = 0;
 718
 719         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 720                 is_large_inode = 1;
 721         large_inode = (struct ext2_inode_large *) inode;
 722
 723         if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
 724         else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
 725         else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
 726         else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
 727         else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
 728         else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
 729         else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
 730         else i_type = "bad type";
 731         fprintf(out, "%sInode: %u   Type: %s    ", prefix, inode_num, i_type);
 732         fprintf(out, "%sMode:  %04o   Flags: 0x%x\n",
 733                 prefix, inode->i_mode & 0777, inode->i_flags);
 734         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 735                 fprintf(out, "%sGeneration: %u    Version: 0x%08x:%08x\n",
 736                         prefix, inode->i_generation, large_inode->i_version_hi,
 737                         inode->osd1.linux1.l_i_version);
 738         } else {
 739                 fprintf(out, "%sGeneration: %u    Version: 0x%08x\n", prefix,
 740                         inode->i_generation, inode->osd1.linux1.l_i_version);
 741         }
 742         fprintf(out, "%sUser: %5d   Group: %5d   Size: ",
 743                 prefix, inode_uid(*inode), inode_gid(*inode));
 744         if (LINUX_S_ISREG(inode->i_mode))
 745                 fprintf(out, "%llu\n", EXT2_I_SIZE(inode));
 746         else
 747                 fprintf(out, "%d\n", inode->i_size);
 748         if (os == EXT2_OS_HURD)
 749                 fprintf(out,
 750                         "%sFile ACL: %d    Directory ACL: %d Translator: %d\n",
 751                         prefix,
 752                         inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0,
 753                         inode->osd1.hurd1.h_i_translator);
 754         else
 755                 fprintf(out, "%sFile ACL: %llu    Directory ACL: %d\n",
 756                         prefix,
 757                         inode->i_file_acl | ((long long)
 758                                 (inode->osd2.linux2.l_i_file_acl_high) << 32),
 759                         LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0);
 760         if (os == EXT2_OS_LINUX)
 761                 fprintf(out, "%sLinks: %d   Blockcount: %llu\n",
 762                         prefix, inode->i_links_count,
 763                         (((unsigned long long)
 764                           inode->osd2.linux2.l_i_blocks_hi << 32)) +
 765                         inode->i_blocks);
 766         else
 767                 fprintf(out, "%sLinks: %d   Blockcount: %u\n",
 768                         prefix, inode->i_links_count, inode->i_blocks);
 769         switch (os) {
 770             case EXT2_OS_HURD:
 771                 frag = inode->osd2.hurd2.h_i_frag;
 772                 fsize = inode->osd2.hurd2.h_i_fsize;
 773                 break;
 774             default:
 775                 frag = fsize = 0;
 776         }
 777         fprintf(out, "%sFragment:  Address: %d    Number: %d    Size: %d\n",
 778                 prefix, inode->i_faddr, frag, fsize);
 779         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 780                 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
 781                         inode->i_ctime, large_inode->i_ctime_extra,
 782                         time_to_string(inode->i_ctime));
 783                 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
 784                         inode->i_atime, large_inode->i_atime_extra,
 785                         time_to_string(inode->i_atime));
 786                 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
 787                         inode->i_mtime, large_inode->i_mtime_extra,
 788                         time_to_string(inode->i_mtime));
 789                 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
 790                         large_inode->i_crtime, large_inode->i_crtime_extra,
 791                         time_to_string(large_inode->i_crtime));
 792         } else {
 793                 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
 794                         time_to_string(inode->i_ctime));
 795                 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
 796                         time_to_string(inode->i_atime));
 797                 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
 798                         time_to_string(inode->i_mtime));
 799         }
 800         if (inode->i_dtime)
 801           fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime,
 802                   time_to_string(inode->i_dtime));
 803         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 804                 internal_dump_inode_extra(out, prefix, inode_num,
 805                                           (struct ext2_inode_large *) inode);
 806         if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_inode_data_blocks(current_fs,inode) == 0)
 807                 fprintf(out, "%sFast_link_dest: %.*s\n", prefix,
 808                         (int) inode->i_size, (char *)inode->i_block);
 809         else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
 810                 int major, minor;
 811                 const char *devnote;
 812
 813                 if (inode->i_block[0]) {
 814                         major = (inode->i_block[0] >> 8) & 255;
 815                         minor = inode->i_block[0] & 255;
 816                         devnote = "";
 817                 } else {
 818                         major = (inode->i_block[1] & 0xfff00) >> 8;
 819                         minor = ((inode->i_block[1] & 0xff) |
 820                                  ((inode->i_block[1] >> 12) & 0xfff00));
 821                         devnote = "(New-style) ";
 822                 }
 823                 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
 824                         devnote, major, minor, major, minor);
 825         } else if (do_dump_blocks) {
 826                 if (inode->i_flags & EXT4_EXTENTS_FL)
 827                         dump_extents(out, prefix, inode_num,
 828                                      DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0);
 829                 else
 830                         dump_blocks(out, prefix, inode_num);
 831         }
 832 }
 833
 834 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
 835 {
 836         FILE    *out;
 837
 838         out = open_pager();
 839         internal_dump_inode(out, "", inode_num, inode, 1);
 840         close_pager(out);
 841 }
 842
 843 void do_stat(int argc, char *argv[])
 844 {
 845         ext2_ino_t      inode;
 846         struct ext2_inode * inode_buf;
 847
 848         if (check_fs_open(argv[0]))
 849                 return;
 850
 851         inode_buf = (struct ext2_inode *)
 852                         malloc(EXT2_INODE_SIZE(current_fs->super));
 853         if (!inode_buf) {
 854                 fprintf(stderr, "do_stat: can't allocate buffer\n");
 855                 return;
 856         }
 857
 858         if (common_inode_args_process(argc, argv, &inode, 0)) {
 859                 free(inode_buf);
 860                 return;
 861         }
 862
 863         if (debugfs_read_inode_full(inode, inode_buf, argv[0],
 864                                         EXT2_INODE_SIZE(current_fs->super))) {
 865                 free(inode_buf);
 866                 return;
 867         }
 868
 869         dump_inode(inode, inode_buf);
 870         free(inode_buf);
 871         return;
 872 }
 873
 874 void do_dump_extents(int argc, char **argv)
 875 {
 876         struct ext2_inode inode;
 877         ext2_ino_t      ino;
 878         FILE            *out;
 879         int             c, flags = 0;
 880         int             logical_width;
 881         int             physical_width;
 882
 883         reset_getopt();
 884         while ((c = getopt(argc, argv, "nl")) != EOF) {
 885                 switch (c) {
 886                 case 'n':
 887                         flags |= DUMP_NODE_EXTENTS;
 888                         break;
 889                 case 'l':
 890                         flags |= DUMP_LEAF_EXTENTS;
 891                         break;
 892                 }
 893         }
 894
 895         if (argc != optind + 1) {
 896                 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
 897                 return;
 898         }
 899
 900         if (flags == 0)
 901                 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
 902         flags |= DUMP_EXTENT_TABLE;
 903
 904         if (check_fs_open(argv[0]))
 905                 return;
 906
 907         ino = string_to_inode(argv[optind]);
 908         if (ino == 0)
 909                 return;
 910
 911         if (debugfs_read_inode(ino, &inode, argv[0]))
 912                 return;
 913
 914         if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
 915                 fprintf(stderr, "%s: does not uses extent block maps\n",
 916                         argv[optind]);
 917                 return;
 918         }
 919
 920         logical_width = int_log10((EXT2_I_SIZE(&inode)+current_fs->blocksize-1)/
 921                                   current_fs->blocksize) + 1;
 922         if (logical_width < 5)
 923                 logical_width = 5;
 924         physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1;
 925         if (physical_width < 5)
 926                 physical_width = 5;
 927
 928         out = open_pager();
 929         dump_extents(out, "", ino, flags, logical_width, physical_width);
 930         close_pager(out);
 931         return;
 932 }
 933
 934 static int print_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
 935                              blk64_t *blocknr,
 936                              e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
 937                              blk64_t ref_block EXT2FS_ATTR((unused)),
 938                              int ref_offset EXT2FS_ATTR((unused)),
 939                              void *private EXT2FS_ATTR((unused)))
 940 {
 941         printf("%llu ", *blocknr);
 942         return 0;
 943 }
 944
 945 void do_blocks(int argc, char *argv[])
 946 {
 947         ext2_ino_t      inode;
 948
 949         if (check_fs_open(argv[0]))
 950                 return;
 951
 952         if (common_inode_args_process(argc, argv, &inode, 0)) {
 953                 return;
 954         }
 955
 956         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
 957                               print_blocks_proc, NULL);
 958         fputc('\n', stdout);
 959         return;
 960 }
 961
 962 void do_chroot(int argc, char *argv[])
 963 {
 964         ext2_ino_t inode;
 965         int retval;
 966
 967         if (common_inode_args_process(argc, argv, &inode, 0))
 968                 return;
 969
 970         retval = ext2fs_check_directory(current_fs, inode);
 971         if (retval)  {
 972                 com_err(argv[1], retval, 0);
 973                 return;
 974         }
 975         root = inode;
 976 }
 977
 978 #ifndef READ_ONLY
 979 void do_clri(int argc, char *argv[])
 980 {
 981         ext2_ino_t inode;
 982         struct ext2_inode inode_buf;
 983
 984         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
 985                 return;
 986
 987         if (debugfs_read_inode(inode, &inode_buf, argv[0]))
 988                 return;
 989         memset(&inode_buf, 0, sizeof(inode_buf));
 990         if (debugfs_write_inode(inode, &inode_buf, argv[0]))
 991                 return;
 992 }
 993
 994 void do_freei(int argc, char *argv[])
 995 {
 996         ext2_ino_t inode;
 997
 998         if (common_inode_args_process(argc, argv, &inode,
 999                                       CHECK_FS_RW | CHECK_FS_BITMAPS))
1000                 return;
1001
1002         if (!ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1003                 com_err(argv[0], 0, "Warning: inode already clear");
1004         ext2fs_unmark_inode_bitmap2(current_fs->inode_map,inode);
1005         ext2fs_mark_ib_dirty(current_fs);
1006 }
1007
1008 void do_seti(int argc, char *argv[])
1009 {
1010         ext2_ino_t inode;
1011
1012         if (common_inode_args_process(argc, argv, &inode,
1013                                       CHECK_FS_RW | CHECK_FS_BITMAPS))
1014                 return;
1015
1016         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1017                 com_err(argv[0], 0, "Warning: inode already set");
1018         ext2fs_mark_inode_bitmap2(current_fs->inode_map,inode);
1019         ext2fs_mark_ib_dirty(current_fs);
1020 }
1021 #endif /* READ_ONLY */
1022
1023 void do_testi(int argc, char *argv[])
1024 {
1025         ext2_ino_t inode;
1026
1027         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
1028                 return;
1029
1030         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1031                 printf("Inode %u is marked in use\n", inode);
1032         else
1033                 printf("Inode %u is not in use\n", inode);
1034 }
1035
1036 #ifndef READ_ONLY
1037 void do_freeb(int argc, char *argv[])
1038 {
1039         blk64_t block;
1040         blk64_t count = 1;
1041
1042         if (common_block_args_process(argc, argv, &block, &count))
1043                 return;
1044         if (check_fs_read_write(argv[0]))
1045                 return;
1046         while (count-- > 0) {
1047                 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
1048                         com_err(argv[0], 0, "Warning: block %llu already clear",
1049                                 block);
1050                 ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
1051                 block++;
1052         }
1053         ext2fs_mark_bb_dirty(current_fs);
1054 }
1055
1056 void do_setb(int argc, char *argv[])
1057 {
1058         blk64_t block;
1059         blk64_t count = 1;
1060
1061         if (common_block_args_process(argc, argv, &block, &count))
1062                 return;
1063         if (check_fs_read_write(argv[0]))
1064                 return;
1065         while (count-- > 0) {
1066                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1067                         com_err(argv[0], 0, "Warning: block %llu already set",
1068                                 block);
1069                 ext2fs_mark_block_bitmap2(current_fs->block_map,block);
1070                 block++;
1071         }
1072         ext2fs_mark_bb_dirty(current_fs);
1073 }
1074 #endif /* READ_ONLY */
1075
1076 void do_testb(int argc, char *argv[])
1077 {
1078         blk64_t block;
1079         blk64_t count = 1;
1080
1081         if (common_block_args_process(argc, argv, &block, &count))
1082                 return;
1083         while (count-- > 0) {
1084                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1085                         printf("Block %llu marked in use\n", block);
1086                 else
1087                         printf("Block %llu not in use\n", block);
1088                 block++;
1089         }
1090 }
1091
1092 #ifndef READ_ONLY
1093 static void modify_u8(char *com, const char *prompt,
1094                       const char *format, __u8 *val)
1095 {
1096         char buf[200];
1097         unsigned long v;
1098         char *tmp;
1099
1100         sprintf(buf, format, *val);
1101         printf("%30s    [%s] ", prompt, buf);
1102         if (!fgets(buf, sizeof(buf), stdin))
1103                 return;
1104         if (buf[strlen (buf) - 1] == '\n')
1105                 buf[strlen (buf) - 1] = '\0';
1106         if (!buf[0])
1107                 return;
1108         v = strtoul(buf, &tmp, 0);
1109         if (*tmp)
1110                 com_err(com, 0, "Bad value - %s", buf);
1111         else
1112                 *val = v;
1113 }
1114
1115 static void modify_u16(char *com, const char *prompt,
1116                        const char *format, __u16 *val)
1117 {
1118         char buf[200];
1119         unsigned long v;
1120         char *tmp;
1121
1122         sprintf(buf, format, *val);
1123         printf("%30s    [%s] ", prompt, buf);
1124         if (!fgets(buf, sizeof(buf), stdin))
1125                 return;
1126         if (buf[strlen (buf) - 1] == '\n')
1127                 buf[strlen (buf) - 1] = '\0';
1128         if (!buf[0])
1129                 return;
1130         v = strtoul(buf, &tmp, 0);
1131         if (*tmp)
1132                 com_err(com, 0, "Bad value - %s", buf);
1133         else
1134                 *val = v;
1135 }
1136
1137 static void modify_u32(char *com, const char *prompt,
1138                        const char *format, __u32 *val)
1139 {
1140         char buf[200];
1141         unsigned long v;
1142         char *tmp;
1143
1144         sprintf(buf, format, *val);
1145         printf("%30s    [%s] ", prompt, buf);
1146         if (!fgets(buf, sizeof(buf), stdin))
1147                 return;
1148         if (buf[strlen (buf) - 1] == '\n')
1149                 buf[strlen (buf) - 1] = '\0';
1150         if (!buf[0])
1151                 return;
1152         v = strtoul(buf, &tmp, 0);
1153         if (*tmp)
1154                 com_err(com, 0, "Bad value - %s", buf);
1155         else
1156                 *val = v;
1157 }
1158
1159
1160 void do_modify_inode(int argc, char *argv[])
1161 {
1162         struct ext2_inode inode;
1163         ext2_ino_t      inode_num;
1164         int             i;
1165         unsigned char   *frag, *fsize;
1166         char            buf[80];
1167         int             os;
1168         const char      *hex_format = "0x%x";
1169         const char      *octal_format = "0%o";
1170         const char      *decimal_format = "%d";
1171         const char      *unsignedlong_format = "%lu";
1172
1173         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1174                 return;
1175
1176         os = current_fs->super->s_creator_os;
1177
1178         if (debugfs_read_inode(inode_num, &inode, argv[1]))
1179                 return;
1180
1181         modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1182         modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1183         modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1184         modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1185         modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1186         modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1187         modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1188         modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1189         modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1190         if (os == EXT2_OS_LINUX)
1191                 modify_u16(argv[0], "Block count high", unsignedlong_format,
1192                            &inode.osd2.linux2.l_i_blocks_hi);
1193         modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1194         modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1195         modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1196 #if 0
1197         modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1198 #endif
1199         modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1200         if (LINUX_S_ISDIR(inode.i_mode))
1201                 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
1202         else
1203                 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
1204
1205         if (os == EXT2_OS_HURD)
1206                 modify_u32(argv[0], "Translator Block",
1207                             decimal_format, &inode.osd1.hurd1.h_i_translator);
1208
1209         modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1210         switch (os) {
1211             case EXT2_OS_HURD:
1212                 frag = &inode.osd2.hurd2.h_i_frag;
1213                 fsize = &inode.osd2.hurd2.h_i_fsize;
1214                 break;
1215             default:
1216                 frag = fsize = 0;
1217         }
1218         if (frag)
1219                 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1220         if (fsize)
1221                 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1222
1223         for (i=0;  i < EXT2_NDIR_BLOCKS; i++) {
1224                 sprintf(buf, "Direct Block #%d", i);
1225                 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1226         }
1227         modify_u32(argv[0], "Indirect Block", decimal_format,
1228                     &inode.i_block[EXT2_IND_BLOCK]);
1229         modify_u32(argv[0], "Double Indirect Block", decimal_format,
1230                     &inode.i_block[EXT2_DIND_BLOCK]);
1231         modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1232                     &inode.i_block[EXT2_TIND_BLOCK]);
1233         if (debugfs_write_inode(inode_num, &inode, argv[1]))
1234                 return;
1235 }
1236 #endif /* READ_ONLY */
1237
1238 void do_change_working_dir(int argc, char *argv[])
1239 {
1240         ext2_ino_t      inode;
1241         int             retval;
1242
1243         if (common_inode_args_process(argc, argv, &inode, 0))
1244                 return;
1245
1246         retval = ext2fs_check_directory(current_fs, inode);
1247         if (retval) {
1248                 com_err(argv[1], retval, 0);
1249                 return;
1250         }
1251         cwd = inode;
1252         return;
1253 }
1254
1255 void do_print_working_directory(int argc, char *argv[])
1256 {
1257         int     retval;
1258         char    *pathname = NULL;
1259
1260         if (common_args_process(argc, argv, 1, 1,
1261                                 "print_working_directory", "", 0))
1262                 return;
1263
1264         retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1265         if (retval) {
1266                 com_err(argv[0], retval,
1267                         "while trying to get pathname of cwd");
1268         }
1269         printf("[pwd]   INODE: %6u  PATH: %s\n",
1270                cwd, pathname ? pathname : "NULL");
1271         if (pathname) {
1272                 free(pathname);
1273                 pathname = NULL;
1274         }
1275         retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1276         if (retval) {
1277                 com_err(argv[0], retval,
1278                         "while trying to get pathname of root");
1279         }
1280         printf("[root]  INODE: %6u  PATH: %s\n",
1281                root, pathname ? pathname : "NULL");
1282         if (pathname) {
1283                 free(pathname);
1284                 pathname = NULL;
1285         }
1286         return;
1287 }
1288
1289 #ifndef READ_ONLY
1290 /*
1291  * Given a mode, return the ext2 file type
1292  */
1293 static int ext2_file_type(unsigned int mode)
1294 {
1295         if (LINUX_S_ISREG(mode))
1296                 return EXT2_FT_REG_FILE;
1297
1298         if (LINUX_S_ISDIR(mode))
1299                 return EXT2_FT_DIR;
1300
1301         if (LINUX_S_ISCHR(mode))
1302                 return EXT2_FT_CHRDEV;
1303
1304         if (LINUX_S_ISBLK(mode))
1305                 return EXT2_FT_BLKDEV;
1306
1307         if (LINUX_S_ISLNK(mode))
1308                 return EXT2_FT_SYMLINK;
1309
1310         if (LINUX_S_ISFIFO(mode))
1311                 return EXT2_FT_FIFO;
1312
1313         if (LINUX_S_ISSOCK(mode))
1314                 return EXT2_FT_SOCK;
1315
1316         return 0;
1317 }
1318
1319 static void make_link(char *sourcename, char *destname)
1320 {
1321         ext2_ino_t      ino;
1322         struct ext2_inode inode;
1323         int             retval;
1324         ext2_ino_t      dir;
1325         char            *dest, *cp, *base_name;
1326
1327         /*
1328          * Get the source inode
1329          */
1330         ino = string_to_inode(sourcename);
1331         if (!ino)
1332                 return;
1333         base_name = strrchr(sourcename, '/');
1334         if (base_name)
1335                 base_name++;
1336         else
1337                 base_name = sourcename;
1338         /*
1339          * Figure out the destination.  First see if it exists and is
1340          * a directory.
1341          */
1342         if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1343                 dest = base_name;
1344         else {
1345                 /*
1346                  * OK, it doesn't exist.  See if it is
1347                  * '<dir>/basename' or 'basename'
1348                  */
1349                 cp = strrchr(destname, '/');
1350                 if (cp) {
1351                         *cp = 0;
1352                         dir = string_to_inode(destname);
1353                         if (!dir)
1354                                 return;
1355                         dest = cp+1;
1356                 } else {
1357                         dir = cwd;
1358                         dest = destname;
1359                 }
1360         }
1361
1362         if (debugfs_read_inode(ino, &inode, sourcename))
1363                 return;
1364
1365         retval = ext2fs_link(current_fs, dir, dest, ino,
1366                              ext2_file_type(inode.i_mode));
1367         if (retval)
1368                 com_err("make_link", retval, 0);
1369         return;
1370 }
1371
1372
1373 void do_link(int argc, char *argv[])
1374 {
1375         if (common_args_process(argc, argv, 3, 3, "link",
1376                                 "<source file> <dest_name>", CHECK_FS_RW))
1377                 return;
1378
1379         make_link(argv[1], argv[2]);
1380 }
1381
1382 static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1383                             e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1384                             blk64_t ref_block EXT2FS_ATTR((unused)),
1385                             int ref_offset EXT2FS_ATTR((unused)),
1386                             void *private EXT2FS_ATTR((unused)))
1387 {
1388         blk64_t block;
1389
1390         block = *blocknr;
1391         ext2fs_block_alloc_stats2(fs, block, +1);
1392         return 0;
1393 }
1394
1395 void do_undel(int argc, char *argv[])
1396 {
1397         ext2_ino_t      ino;
1398         struct ext2_inode inode;
1399
1400         if (common_args_process(argc, argv, 2, 3, "undelete",
1401                                 "<inode_num> [dest_name]",
1402                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1403                 return;
1404
1405         ino = string_to_inode(argv[1]);
1406         if (!ino)
1407                 return;
1408
1409         if (debugfs_read_inode(ino, &inode, argv[1]))
1410                 return;
1411
1412         if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
1413                 com_err(argv[1], 0, "Inode is not marked as deleted");
1414                 return;
1415         }
1416
1417         /*
1418          * XXX this function doesn't handle changing the links count on the
1419          * parent directory when undeleting a directory.
1420          */
1421         inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1422         inode.i_dtime = 0;
1423
1424         if (debugfs_write_inode(ino, &inode, argv[0]))
1425                 return;
1426
1427         ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1428                               mark_blocks_proc, NULL);
1429
1430         ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1431
1432         if (argc > 2)
1433                 make_link(argv[1], argv[2]);
1434 }
1435
1436 static void unlink_file_by_name(char *filename)
1437 {
1438         int             retval;
1439         ext2_ino_t      dir;
1440         char            *base_name;
1441
1442         base_name = strrchr(filename, '/');
1443         if (base_name) {
1444                 *base_name++ = '\0';
1445                 dir = string_to_inode(filename);
1446                 if (!dir)
1447                         return;
1448         } else {
1449                 dir = cwd;
1450                 base_name = filename;
1451         }
1452         retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1453         if (retval)
1454                 com_err("unlink_file_by_name", retval, 0);
1455         return;
1456 }
1457
1458 void do_unlink(int argc, char *argv[])
1459 {
1460         if (common_args_process(argc, argv, 2, 2, "link",
1461                                 "<pathname>", CHECK_FS_RW))
1462                 return;
1463
1464         unlink_file_by_name(argv[1]);
1465 }
1466 #endif /* READ_ONLY */
1467
1468 void do_find_free_block(int argc, char *argv[])
1469 {
1470         blk64_t free_blk, goal, first_free = 0;
1471         int             count;
1472         errcode_t       retval;
1473         char            *tmp;
1474
1475         if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1476                 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1477                 return;
1478         }
1479         if (check_fs_open(argv[0]))
1480                 return;
1481
1482         if (argc > 1) {
1483                 count = strtol(argv[1],&tmp,0);
1484                 if (*tmp) {
1485                         com_err(argv[0], 0, "Bad count - %s", argv[1]);
1486                         return;
1487                 }
1488         } else
1489                 count = 1;
1490
1491         if (argc > 2) {
1492                 goal = strtol(argv[2], &tmp, 0);
1493                 if (*tmp) {
1494                         com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1495                         return;
1496                 }
1497         }
1498         else
1499                 goal = current_fs->super->s_first_data_block;
1500
1501         printf("Free blocks found: ");
1502         free_blk = goal - 1;
1503         while (count-- > 0) {
1504                 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
1505                                            &free_blk);
1506                 if (first_free) {
1507                         if (first_free == free_blk)
1508                                 break;
1509                 } else
1510                         first_free = free_blk;
1511                 if (retval) {
1512                         com_err("ext2fs_new_block", retval, 0);
1513                         return;
1514                 } else
1515                         printf("%llu ", free_blk);
1516         }
1517         printf("\n");
1518 }
1519
1520 void do_find_free_inode(int argc, char *argv[])
1521 {
1522         ext2_ino_t      free_inode, dir;
1523         int             mode;
1524         int             retval;
1525         char            *tmp;
1526
1527         if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1528                 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
1529                 return;
1530         }
1531         if (check_fs_open(argv[0]))
1532                 return;
1533
1534         if (argc > 1) {
1535                 dir = strtol(argv[1], &tmp, 0);
1536                 if (*tmp) {
1537                         com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1538                         return;
1539                 }
1540         }
1541         else
1542                 dir = root;
1543         if (argc > 2) {
1544                 mode = strtol(argv[2], &tmp, 0);
1545                 if (*tmp) {
1546                         com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1547                         return;
1548                 }
1549         } else
1550                 mode = 010755;
1551
1552         retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1553         if (retval)
1554                 com_err("ext2fs_new_inode", retval, 0);
1555         else
1556                 printf("Free inode found: %u\n", free_inode);
1557 }
1558
1559 #ifndef READ_ONLY
1560 static errcode_t copy_file(int fd, ext2_ino_t newfile)
1561 {
1562         ext2_file_t     e2_file;
1563         errcode_t       retval;
1564         int             got;
1565         unsigned int    written;
1566         char            buf[8192];
1567         char            *ptr;
1568
1569         retval = ext2fs_file_open(current_fs, newfile,
1570                                   EXT2_FILE_WRITE, &e2_file);
1571         if (retval)
1572                 return retval;
1573
1574         while (1) {
1575                 got = read(fd, buf, sizeof(buf));
1576                 if (got == 0)
1577                         break;
1578                 if (got < 0) {
1579                         retval = errno;
1580                         goto fail;
1581                 }
1582                 ptr = buf;
1583                 while (got > 0) {
1584                         retval = ext2fs_file_write(e2_file, ptr,
1585                                                    got, &written);
1586                         if (retval)
1587                                 goto fail;
1588
1589                         got -= written;
1590                         ptr += written;
1591                 }
1592         }
1593         retval = ext2fs_file_close(e2_file);
1594         return retval;
1595
1596 fail:
1597         (void) ext2fs_file_close(e2_file);
1598         return retval;
1599 }
1600
1601
1602 void do_write(int argc, char *argv[])
1603 {
1604         int             fd;
1605         struct stat     statbuf;
1606         ext2_ino_t      newfile;
1607         errcode_t       retval;
1608         struct ext2_inode inode;
1609
1610         if (common_args_process(argc, argv, 3, 3, "write",
1611                                 "<native file> <new file>", CHECK_FS_RW))
1612                 return;
1613
1614         fd = open(argv[1], O_RDONLY);
1615         if (fd < 0) {
1616                 com_err(argv[1], errno, 0);
1617                 return;
1618         }
1619         if (fstat(fd, &statbuf) < 0) {
1620                 com_err(argv[1], errno, 0);
1621                 close(fd);
1622                 return;
1623         }
1624
1625         retval = ext2fs_namei(current_fs, root, cwd, argv[2], &newfile);
1626         if (retval == 0) {
1627                 com_err(argv[0], 0, "The file '%s' already exists\n", argv[2]);
1628                 close(fd);
1629                 return;
1630         }
1631
1632         retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1633         if (retval) {
1634                 com_err(argv[0], retval, 0);
1635                 close(fd);
1636                 return;
1637         }
1638         printf("Allocated inode: %u\n", newfile);
1639         retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1640                              EXT2_FT_REG_FILE);
1641         if (retval == EXT2_ET_DIR_NO_SPACE) {
1642                 retval = ext2fs_expand_dir(current_fs, cwd);
1643                 if (retval) {
1644                         com_err(argv[0], retval, "while expanding directory");
1645                         close(fd);
1646                         return;
1647                 }
1648                 retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1649                                      EXT2_FT_REG_FILE);
1650         }
1651         if (retval) {
1652                 com_err(argv[2], retval, 0);
1653                 close(fd);
1654                 return;
1655         }
1656         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile))
1657                 com_err(argv[0], 0, "Warning: inode already set");
1658         ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0);
1659         memset(&inode, 0, sizeof(inode));
1660         inode.i_mode = (statbuf.st_mode & ~LINUX_S_IFMT) | LINUX_S_IFREG;
1661         inode.i_atime = inode.i_ctime = inode.i_mtime =
1662                 current_fs->now ? current_fs->now : time(0);
1663         inode.i_links_count = 1;
1664         inode.i_size = statbuf.st_size;
1665         if (current_fs->super->s_feature_incompat &
1666             EXT3_FEATURE_INCOMPAT_EXTENTS)
1667                 inode.i_flags |= EXT4_EXTENTS_FL;
1668         if (debugfs_write_new_inode(newfile, &inode, argv[0])) {
1669                 close(fd);
1670                 return;
1671         }
1672         if (LINUX_S_ISREG(inode.i_mode)) {
1673                 retval = copy_file(fd, newfile);
1674                 if (retval)
1675                         com_err("copy_file", retval, 0);
1676         }
1677         close(fd);
1678 }
1679
1680 void do_mknod(int argc, char *argv[])
1681 {
1682         unsigned long   mode, major, minor;
1683         ext2_ino_t      newfile;
1684         errcode_t       retval;
1685         struct ext2_inode inode;
1686         int             filetype, nr;
1687
1688         if (check_fs_open(argv[0]))
1689                 return;
1690         if (argc < 3 || argv[2][1]) {
1691         usage:
1692                 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1693                 return;
1694         }
1695         mode = minor = major = 0;
1696         switch (argv[2][0]) {
1697                 case 'p':
1698                         mode = LINUX_S_IFIFO;
1699                         filetype = EXT2_FT_FIFO;
1700                         nr = 3;
1701                         break;
1702                 case 'c':
1703                         mode = LINUX_S_IFCHR;
1704                         filetype = EXT2_FT_CHRDEV;
1705                         nr = 5;
1706                         break;
1707                 case 'b':
1708                         mode = LINUX_S_IFBLK;
1709                         filetype = EXT2_FT_BLKDEV;
1710                         nr = 5;
1711                         break;
1712                 default:
1713                         filetype = 0;
1714                         nr = 0;
1715         }
1716         if (nr == 5) {
1717                 major = strtoul(argv[3], argv+3, 0);
1718                 minor = strtoul(argv[4], argv+4, 0);
1719                 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1720                         nr = 0;
1721         }
1722         if (argc != nr)
1723                 goto usage;
1724         if (check_fs_read_write(argv[0]))
1725                 return;
1726         retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1727         if (retval) {
1728                 com_err(argv[0], retval, 0);
1729                 return;
1730         }
1731         printf("Allocated inode: %u\n", newfile);
1732         retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype);
1733         if (retval == EXT2_ET_DIR_NO_SPACE) {
1734                 retval = ext2fs_expand_dir(current_fs, cwd);
1735                 if (retval) {
1736                         com_err(argv[0], retval, "while expanding directory");
1737                         return;
1738                 }
1739                 retval = ext2fs_link(current_fs, cwd, argv[1], newfile,
1740                                      filetype);
1741         }
1742         if (retval) {
1743                 com_err(argv[1], retval, 0);
1744                 return;
1745         }
1746         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile))
1747                 com_err(argv[0], 0, "Warning: inode already set");
1748         ext2fs_mark_inode_bitmap2(current_fs->inode_map, newfile);
1749         ext2fs_mark_ib_dirty(current_fs);
1750         memset(&inode, 0, sizeof(inode));
1751         inode.i_mode = mode;
1752         inode.i_atime = inode.i_ctime = inode.i_mtime =
1753                 current_fs->now ? current_fs->now : time(0);
1754         if ((major < 256) && (minor < 256)) {
1755                 inode.i_block[0] = major*256+minor;
1756                 inode.i_block[1] = 0;
1757         } else {
1758                 inode.i_block[0] = 0;
1759                 inode.i_block[1] = (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12);
1760         }
1761         inode.i_links_count = 1;
1762         if (debugfs_write_new_inode(newfile, &inode, argv[0]))
1763                 return;
1764 }
1765
1766 void do_mkdir(int argc, char *argv[])
1767 {
1768         char    *cp;
1769         ext2_ino_t      parent;
1770         char    *name;
1771         errcode_t retval;
1772
1773         if (common_args_process(argc, argv, 2, 2, "mkdir",
1774                                 "<filename>", CHECK_FS_RW))
1775                 return;
1776
1777         cp = strrchr(argv[1], '/');
1778         if (cp) {
1779                 *cp = 0;
1780                 parent = string_to_inode(argv[1]);
1781                 if (!parent) {
1782                         com_err(argv[1], ENOENT, 0);
1783                         return;
1784                 }
1785                 name = cp+1;
1786         } else {
1787                 parent = cwd;
1788                 name = argv[1];
1789         }
1790
1791 try_again:
1792         retval = ext2fs_mkdir(current_fs, parent, 0, name);
1793         if (retval == EXT2_ET_DIR_NO_SPACE) {
1794                 retval = ext2fs_expand_dir(current_fs, parent);
1795                 if (retval) {
1796                         com_err(argv[0], retval, "while expanding directory");
1797                         return;
1798                 }
1799                 goto try_again;
1800         }
1801         if (retval) {
1802                 com_err("ext2fs_mkdir", retval, 0);
1803                 return;
1804         }
1805
1806 }
1807
1808 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1809                                e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1810                                blk64_t ref_block EXT2FS_ATTR((unused)),
1811                                int ref_offset EXT2FS_ATTR((unused)),
1812                                void *private EXT2FS_ATTR((unused)))
1813 {
1814         blk64_t block;
1815
1816         block = *blocknr;
1817         ext2fs_block_alloc_stats2(fs, block, -1);
1818         return 0;
1819 }
1820
1821 static void kill_file_by_inode(ext2_ino_t inode)
1822 {
1823         struct ext2_inode inode_buf;
1824
1825         if (debugfs_read_inode(inode, &inode_buf, 0))
1826                 return;
1827         inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1828         if (debugfs_write_inode(inode, &inode_buf, 0))
1829                 return;
1830         if (!ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf))
1831                 return;
1832
1833         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
1834                               release_blocks_proc, NULL);
1835         printf("\n");
1836         ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1837                                   LINUX_S_ISDIR(inode_buf.i_mode));
1838 }
1839
1840
1841 void do_kill_file(int argc, char *argv[])
1842 {
1843         ext2_ino_t inode_num;
1844
1845         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1846                 return;
1847
1848         kill_file_by_inode(inode_num);
1849 }
1850
1851 void do_rm(int argc, char *argv[])
1852 {
1853         int retval;
1854         ext2_ino_t inode_num;
1855         struct ext2_inode inode;
1856
1857         if (common_args_process(argc, argv, 2, 2, "rm",
1858                                 "<filename>", CHECK_FS_RW))
1859                 return;
1860
1861         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1862         if (retval) {
1863                 com_err(argv[0], retval, "while trying to resolve filename");
1864                 return;
1865         }
1866
1867         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1868                 return;
1869
1870         if (LINUX_S_ISDIR(inode.i_mode)) {
1871                 com_err(argv[0], 0, "file is a directory");
1872                 return;
1873         }
1874
1875         --inode.i_links_count;
1876         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1877                 return;
1878
1879         unlink_file_by_name(argv[1]);
1880         if (inode.i_links_count == 0)
1881                 kill_file_by_inode(inode_num);
1882 }
1883
1884 struct rd_struct {
1885         ext2_ino_t      parent;
1886         int             empty;
1887 };
1888
1889 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1890                       int       entry EXT2FS_ATTR((unused)),
1891                       struct ext2_dir_entry *dirent,
1892                       int       offset EXT2FS_ATTR((unused)),
1893                       int       blocksize EXT2FS_ATTR((unused)),
1894                       char      *buf EXT2FS_ATTR((unused)),
1895                       void      *private)
1896 {
1897         struct rd_struct *rds = (struct rd_struct *) private;
1898
1899         if (dirent->inode == 0)
1900                 return 0;
1901         if (((dirent->name_len&0xFF) == 1) && (dirent->name[0] == '.'))
1902                 return 0;
1903         if (((dirent->name_len&0xFF) == 2) && (dirent->name[0] == '.') &&
1904             (dirent->name[1] == '.')) {
1905                 rds->parent = dirent->inode;
1906                 return 0;
1907         }
1908         rds->empty = 0;
1909         return 0;
1910 }
1911
1912 void do_rmdir(int argc, char *argv[])
1913 {
1914         int retval;
1915         ext2_ino_t inode_num;
1916         struct ext2_inode inode;
1917         struct rd_struct rds;
1918
1919         if (common_args_process(argc, argv, 2, 2, "rmdir",
1920                                 "<filename>", CHECK_FS_RW))
1921                 return;
1922
1923         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1924         if (retval) {
1925                 com_err(argv[0], retval, "while trying to resolve filename");
1926                 return;
1927         }
1928
1929         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1930                 return;
1931
1932         if (!LINUX_S_ISDIR(inode.i_mode)) {
1933                 com_err(argv[0], 0, "file is not a directory");
1934                 return;
1935         }
1936
1937         rds.parent = 0;
1938         rds.empty = 1;
1939
1940         retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1941                                     0, rmdir_proc, &rds);
1942         if (retval) {
1943                 com_err(argv[0], retval, "while iterating over directory");
1944                 return;
1945         }
1946         if (rds.empty == 0) {
1947                 com_err(argv[0], 0, "directory not empty");
1948                 return;
1949         }
1950
1951         inode.i_links_count = 0;
1952         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1953                 return;
1954
1955         unlink_file_by_name(argv[1]);
1956         kill_file_by_inode(inode_num);
1957
1958         if (rds.parent) {
1959                 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
1960                         return;
1961                 if (inode.i_links_count > 1)
1962                         inode.i_links_count--;
1963                 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
1964                         return;
1965         }
1966 }
1967 #endif /* READ_ONLY */
1968
1969 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
1970                             char *argv[] EXT2FS_ATTR((unused)))
1971 {
1972         FILE *out = stdout;
1973
1974         if (current_fs)
1975                 fprintf(out, "Open mode: read-%s\n",
1976                         current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
1977         fprintf(out, "Filesystem in use: %s\n",
1978                 current_fs ? current_fs->device_name : "--none--");
1979 }
1980
1981 #ifndef READ_ONLY
1982 void do_expand_dir(int argc, char *argv[])
1983 {
1984         ext2_ino_t inode;
1985         int retval;
1986
1987         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1988                 return;
1989
1990         retval = ext2fs_expand_dir(current_fs, inode);
1991         if (retval)
1992                 com_err("ext2fs_expand_dir", retval, 0);
1993         return;
1994 }
1995
1996 void do_features(int argc, char *argv[])
1997 {
1998         int     i;
1999
2000         if (check_fs_open(argv[0]))
2001                 return;
2002
2003         if ((argc != 1) && check_fs_read_write(argv[0]))
2004                 return;
2005         for (i=1; i < argc; i++) {
2006                 if (e2p_edit_feature(argv[i],
2007                                      &current_fs->super->s_feature_compat, 0))
2008                         com_err(argv[0], 0, "Unknown feature: %s\n",
2009                                 argv[i]);
2010                 else
2011                         ext2fs_mark_super_dirty(current_fs);
2012         }
2013         print_features(current_fs->super, stdout);
2014 }
2015 #endif /* READ_ONLY */
2016
2017 void do_bmap(int argc, char *argv[])
2018 {
2019         ext2_ino_t      ino;
2020         blk64_t         blk, pblk;
2021         int             err;
2022         errcode_t       errcode;
2023
2024         if (common_args_process(argc, argv, 3, 3, argv[0],
2025                                 "<file> logical_blk", 0))
2026                 return;
2027
2028         ino = string_to_inode(argv[1]);
2029         if (!ino)
2030                 return;
2031         blk = parse_ulong(argv[2], argv[0], "logical_block", &err);
2032
2033         errcode = ext2fs_bmap2(current_fs, ino, 0, 0, 0, blk, 0, &pblk);
2034         if (errcode) {
2035                 com_err("argv[0]", errcode,
2036                         "while mapping logical block %llu\n", blk);
2037                 return;
2038         }
2039         printf("%llu\n", pblk);
2040 }
2041
2042 void do_imap(int argc, char *argv[])
2043 {
2044         ext2_ino_t      ino;
2045         unsigned long   group, block, block_nr, offset;
2046
2047         if (common_args_process(argc, argv, 2, 2, argv[0],
2048                                 "<file>", 0))
2049                 return;
2050         ino = string_to_inode(argv[1]);
2051         if (!ino)
2052                 return;
2053
2054         group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
2055         offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
2056                 EXT2_INODE_SIZE(current_fs->super);
2057         block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
2058         if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
2059                 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
2060                         group);
2061                 return;
2062         }
2063         block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
2064                 block;
2065         offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
2066
2067         printf("Inode %d is part of block group %lu\n"
2068                "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
2069                block_nr, offset);
2070
2071 }
2072
2073 #ifndef READ_ONLY
2074 void do_set_current_time(int argc, char *argv[])
2075 {
2076         time_t now;
2077
2078         if (common_args_process(argc, argv, 2, 2, argv[0],
2079                                 "<time>", 0))
2080                 return;
2081
2082         now = string_to_time(argv[1]);
2083         if (now == ((time_t) -1)) {
2084                 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
2085                         argv[1]);
2086                 return;
2087
2088         } else {
2089                 printf("Setting current time to %s\n", time_to_string(now));
2090                 current_fs->now = now;
2091         }
2092 }
2093 #endif /* READ_ONLY */
2094
2095 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
2096 {
2097         int compat, bit, ret;
2098         unsigned int feature_mask;
2099
2100         if (name) {
2101                 if (feature_type == E2P_FS_FEATURE)
2102                         ret = e2p_string2feature(name, &compat, &feature_mask);
2103                 else
2104                         ret = e2p_jrnl_string2feature(name, &compat,
2105                                                       &feature_mask);
2106                 if (ret)
2107                         return ret;
2108
2109                 if (!(supp[compat] & feature_mask))
2110                         return 1;
2111         } else {
2112                 for (compat = 0; compat < 3; compat++) {
2113                         for (bit = 0, feature_mask = 1; bit < 32;
2114                              bit++, feature_mask <<= 1) {
2115                                 if (supp[compat] & feature_mask) {
2116                                         if (feature_type == E2P_FS_FEATURE)
2117                                                 fprintf(stdout, " %s",
2118                                                 e2p_feature2string(compat,
2119                                                 feature_mask));
2120                                         else
2121                                                 fprintf(stdout, " %s",
2122                                                 e2p_jrnl_feature2string(compat,
2123                                                 feature_mask));
2124                                 }
2125                         }
2126                 }
2127                 fprintf(stdout, "\n");
2128         }
2129
2130         return 0;
2131 }
2132
2133 void do_supported_features(int argc, char *argv[])
2134 {
2135         int     ret;
2136         __u32   supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2137                             EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2138                             EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2139         __u32   jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES,
2140                                  JFS_KNOWN_INCOMPAT_FEATURES,
2141                                  JFS_KNOWN_ROCOMPAT_FEATURES };
2142
2143         if (argc > 1) {
2144                 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2145                 if (ret) {
2146                         ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2147                                                 argv[1]);
2148                 }
2149                 if (ret)
2150                         com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2151                 else
2152                         fprintf(stdout, "Supported feature: %s\n", argv[1]);
2153         } else {
2154                 fprintf(stdout, "Supported features:");
2155                 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2156                 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2157         }
2158 }
2159
2160 #ifndef READ_ONLY
2161 void do_punch(int argc, char *argv[])
2162 {
2163         ext2_ino_t      ino;
2164         blk64_t         start, end;
2165         int             err;
2166         errcode_t       errcode;
2167
2168         if (common_args_process(argc, argv, 3, 4, argv[0],
2169                                 "<file> start_blk [end_blk]",
2170                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
2171                 return;
2172
2173         ino = string_to_inode(argv[1]);
2174         if (!ino)
2175                 return;
2176         start = parse_ulong(argv[2], argv[0], "logical_block", &err);
2177         if (argc == 4)
2178                 end = parse_ulong(argv[3], argv[0], "logical_block", &err);
2179         else
2180                 end = ~0;
2181
2182         errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
2183
2184         if (errcode) {
2185                 com_err(argv[0], errcode,
2186                         "while truncating inode %u from %llu to %llu\n", ino,
2187                         (unsigned long long) start, (unsigned long long) end);
2188                 return;
2189         }
2190 }
2191 #endif /* READ_ONLY */
2192
2193 void do_dump_mmp(int argc EXT2FS_ATTR((unused)), char *argv[])
2194 {
2195         struct ext2_super_block *sb;
2196         struct mmp_struct *mmp_s;
2197         time_t t;
2198         errcode_t retval = 0;
2199
2200         if (check_fs_open(argv[0]))
2201                 return;
2202
2203         sb  = current_fs->super;
2204         if (sb->s_mmp_block <= sb->s_first_data_block ||
2205             sb->s_mmp_block >= ext2fs_blocks_count(sb)) {
2206                 com_err(argv[0], EXT2_ET_MMP_BAD_BLOCK, "while dumping it.\n");
2207                 return;
2208         }
2209
2210         if (current_fs->mmp_buf == NULL) {
2211                 retval = ext2fs_get_mem(current_fs->blocksize,
2212                                         &current_fs->mmp_buf);
2213                 if (retval) {
2214                         com_err(argv[0], retval, "allocating MMP buffer.\n");
2215                         return;
2216                 }
2217         }
2218
2219         mmp_s = current_fs->mmp_buf;
2220
2221         retval = ext2fs_mmp_read(current_fs, current_fs->super->s_mmp_block,
2222                                  current_fs->mmp_buf);
2223         if (retval) {
2224                 com_err(argv[0], retval, "reading MMP block.\n");
2225                 return;
2226         }
2227
2228         t = mmp_s->mmp_time;
2229         fprintf(stdout, "block_number: %llu\n", current_fs->super->s_mmp_block);
2230         fprintf(stdout, "update_interval: %d\n",
2231                 current_fs->super->s_mmp_update_interval);
2232         fprintf(stdout, "check_interval: %d\n", mmp_s->mmp_check_interval);
2233         fprintf(stdout, "sequence: %08x\n", mmp_s->mmp_seq);
2234         fprintf(stdout, "time: %lld -- %s", mmp_s->mmp_time, ctime(&t));
2235         fprintf(stdout, "node_name: %s\n", mmp_s->mmp_nodename);
2236         fprintf(stdout, "device_name: %s\n", mmp_s->mmp_bdevname);
2237         fprintf(stdout, "magic: 0x%x\n", mmp_s->mmp_magic);
2238 }
2239
2240 static int source_file(const char *cmd_file, int sci_idx)
2241 {
2242         FILE            *f;
2243         char            buf[256];
2244         char            *cp;
2245         int             exit_status = 0;
2246         int             retval;
2247
2248         if (strcmp(cmd_file, "-") == 0)
2249                 f = stdin;
2250         else {
2251                 f = fopen(cmd_file, "r");
2252                 if (!f) {
2253                         perror(cmd_file);
2254                         exit(1);
2255                 }
2256         }
2257         fflush(stdout);
2258         fflush(stderr);
2259         setbuf(stdout, NULL);
2260         setbuf(stderr, NULL);
2261         while (!feof(f)) {
2262                 if (fgets(buf, sizeof(buf), f) == NULL)
2263                         break;
2264                 cp = strchr(buf, '\n');
2265                 if (cp)
2266                         *cp = 0;
2267                 cp = strchr(buf, '\r');
2268                 if (cp)
2269                         *cp = 0;
2270                 printf("debugfs: %s\n", buf);
2271                 retval = ss_execute_line(sci_idx, buf);
2272                 if (retval) {
2273                         ss_perror(sci_idx, retval, buf);
2274                         exit_status++;
2275                 }
2276         }
2277         if (f != stdin)
2278                 fclose(f);
2279         return exit_status;
2280 }
2281
2282 int main(int argc, char **argv)
2283 {
2284         int             retval;
2285         int             sci_idx;
2286         const char      *usage =
2287                 "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] "
2288                 "[-R request] [-V] ["
2289 #ifndef READ_ONLY
2290                 "[-w] "
2291 #endif
2292                 "[-c] device]";
2293         int             c;
2294         int             open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
2295         char            *request = 0;
2296         int             exit_status = 0;
2297         char            *cmd_file = 0;
2298         blk64_t         superblock = 0;
2299         blk64_t         blocksize = 0;
2300         int             catastrophic = 0;
2301         char            *data_filename = 0;
2302 #ifdef READ_ONLY
2303         const char      *opt_string = "icR:f:b:s:Vd:D";
2304 #else
2305         const char      *opt_string = "iwcR:f:b:s:Vd:D";
2306 #endif
2307
2308         if (debug_prog_name == 0)
2309 #ifdef READ_ONLY
2310                 debug_prog_name = "rdebugfs";
2311 #else
2312                 debug_prog_name = "debugfs";
2313 #endif
2314         add_error_table(&et_ext2_error_table);
2315         fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2316                  E2FSPROGS_VERSION, E2FSPROGS_DATE);
2317
2318         while ((c = getopt (argc, argv, opt_string)) != EOF) {
2319                 switch (c) {
2320                 case 'R':
2321                         request = optarg;
2322                         break;
2323                 case 'f':
2324                         cmd_file = optarg;
2325                         break;
2326                 case 'd':
2327                         data_filename = optarg;
2328                         break;
2329                 case 'i':
2330                         open_flags |= EXT2_FLAG_IMAGE_FILE;
2331                         break;
2332 #ifndef READ_ONLY
2333                 case 'w':
2334                         open_flags |= EXT2_FLAG_RW;
2335                         break;
2336 #endif
2337                 case 'D':
2338                         open_flags |= EXT2_FLAG_DIRECT_IO;
2339                         break;
2340                 case 'b':
2341                         blocksize = parse_ulong(optarg, argv[0],
2342                                                 "block size", 0);
2343                         break;
2344                 case 's':
2345                         superblock = parse_ulong(optarg, argv[0],
2346                                                  "superblock number", 0);
2347                         break;
2348                 case 'c':
2349                         catastrophic = 1;
2350                         break;
2351                 case 'V':
2352                         /* Print version number and exit */
2353                         fprintf(stderr, "\tUsing %s\n",
2354                                 error_message(EXT2_ET_BASE));
2355                         exit(0);
2356                 default:
2357                         com_err(argv[0], 0, usage, debug_prog_name);
2358                         return 1;
2359                 }
2360         }
2361         if (optind < argc)
2362                 open_filesystem(argv[optind], open_flags,
2363                                 superblock, blocksize, catastrophic,
2364                                 data_filename);
2365
2366         sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2367                                        &debug_cmds, &retval);
2368         if (retval) {
2369                 ss_perror(sci_idx, retval, "creating invocation");
2370                 exit(1);
2371         }
2372         ss_get_readline(sci_idx);
2373
2374         (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
2375         if (retval) {
2376                 ss_perror(sci_idx, retval, "adding standard requests");
2377                 exit (1);
2378         }
2379         if (extra_cmds)
2380                 ss_add_request_table (sci_idx, extra_cmds, 1, &retval);
2381         if (retval) {
2382                 ss_perror(sci_idx, retval, "adding extra requests");
2383                 exit (1);
2384         }
2385         if (request) {
2386                 retval = 0;
2387                 retval = ss_execute_line(sci_idx, request);
2388                 if (retval) {
2389                         ss_perror(sci_idx, retval, request);
2390                         exit_status++;
2391                 }
2392         } else if (cmd_file) {
2393                 exit_status = source_file(cmd_file, sci_idx);
2394         } else {
2395                 ss_listen(sci_idx);
2396         }
2397
2398         ss_delete_invocation(sci_idx);
2399
2400         if (current_fs)
2401                 close_filesystem();
2402
2403         remove_error_table(&et_ext2_error_table);
2404         return exit_status;
2405 }