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 "debugfs.h"
  32 #include "uuid/uuid.h"
  33 #include "e2p/e2p.h"
  34
  35 #include <ext2fs/ext2_ext_attr.h>
  36
  37 #include "../version.h"
  38 #include "jfs_user.h"
  39
  40 #ifndef BUFSIZ
  41 #define BUFSIZ 8192
  42 #endif
  43
  44 /* 64KiB is the minimium blksize to best minimize system call overhead. */
  45 #ifndef IO_BUFSIZE
  46 #define IO_BUFSIZE 64*1024
  47 #endif
  48
  49 /* Block size for `st_blocks' */
  50 #ifndef S_BLKSIZE
  51 #define S_BLKSIZE 512
  52 #endif
  53
  54 ss_request_table *extra_cmds;
  55 const char *debug_prog_name;
  56 int sci_idx;
  57
  58 ext2_filsys     current_fs = NULL;
  59 ext2_ino_t      root, cwd;
  60
  61 static void open_filesystem(char *device, int open_flags, blk64_t superblock,
  62                             blk64_t blocksize, int catastrophic,
  63                             char *data_filename)
  64 {
  65         int     retval;
  66         io_channel data_io = 0;
  67
  68         if (superblock != 0 && blocksize == 0) {
  69                 com_err(device, 0, "if you specify the superblock, you must also specify the block size");
  70                 current_fs = NULL;
  71                 return;
  72         }
  73
  74         if (data_filename) {
  75                 if ((open_flags & EXT2_FLAG_IMAGE_FILE) == 0) {
  76                         com_err(device, 0,
  77                                 "The -d option is only valid when reading an e2image file");
  78                         current_fs = NULL;
  79                         return;
  80                 }
  81                 retval = unix_io_manager->open(data_filename, 0, &data_io);
  82                 if (retval) {
  83                         com_err(data_filename, 0, "while opening data source");
  84                         current_fs = NULL;
  85                         return;
  86                 }
  87         }
  88
  89         if (catastrophic && (open_flags & EXT2_FLAG_RW)) {
  90                 com_err(device, 0,
  91                         "opening read-only because of catastrophic mode");
  92                 open_flags &= ~EXT2_FLAG_RW;
  93         }
  94         if (catastrophic)
  95                 open_flags |= EXT2_FLAG_SKIP_MMP;
  96
  97         retval = ext2fs_open(device, open_flags, superblock, blocksize,
  98                              unix_io_manager, &current_fs);
  99         if (retval) {
 100                 com_err(device, retval, "while opening filesystem");
 101                 current_fs = NULL;
 102                 return;
 103         }
 104         current_fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
 105
 106         if (catastrophic)
 107                 com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps");
 108         else {
 109                 retval = ext2fs_read_inode_bitmap(current_fs);
 110                 if (retval) {
 111                         com_err(device, retval, "while reading inode bitmap");
 112                         goto errout;
 113                 }
 114                 retval = ext2fs_read_block_bitmap(current_fs);
 115                 if (retval) {
 116                         com_err(device, retval, "while reading block bitmap");
 117                         goto errout;
 118                 }
 119         }
 120
 121         if (data_io) {
 122                 retval = ext2fs_set_data_io(current_fs, data_io);
 123                 if (retval) {
 124                         com_err(device, retval,
 125                                 "while setting data source");
 126                         goto errout;
 127                 }
 128         }
 129
 130         root = cwd = EXT2_ROOT_INO;
 131         return;
 132
 133 errout:
 134         retval = ext2fs_close(current_fs);
 135         if (retval)
 136                 com_err(device, retval, "while trying to close filesystem");
 137         current_fs = NULL;
 138 }
 139
 140 void do_open_filesys(int argc, char **argv)
 141 {
 142         int     c, err;
 143         int     catastrophic = 0;
 144         blk64_t superblock = 0;
 145         blk64_t blocksize = 0;
 146         int     open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
 147         char    *data_filename = 0;
 148
 149         reset_getopt();
 150         while ((c = getopt (argc, argv, "iwfecb:s:d:D")) != EOF) {
 151                 switch (c) {
 152                 case 'i':
 153                         open_flags |= EXT2_FLAG_IMAGE_FILE;
 154                         break;
 155                 case 'w':
 156 #ifdef READ_ONLY
 157                         goto print_usage;
 158 #else
 159                         open_flags |= EXT2_FLAG_RW;
 160 #endif /* READ_ONLY */
 161                         break;
 162                 case 'f':
 163                         open_flags |= EXT2_FLAG_FORCE;
 164                         break;
 165                 case 'e':
 166                         open_flags |= EXT2_FLAG_EXCLUSIVE;
 167                         break;
 168                 case 'c':
 169                         catastrophic = 1;
 170                         break;
 171                 case 'd':
 172                         data_filename = optarg;
 173                         break;
 174                 case 'D':
 175                         open_flags |= EXT2_FLAG_DIRECT_IO;
 176                         break;
 177                 case 'b':
 178                         blocksize = parse_ulong(optarg, argv[0],
 179                                                 "block size", &err);
 180                         if (err)
 181                                 return;
 182                         break;
 183                 case 's':
 184                         superblock = parse_ulong(optarg, argv[0],
 185                                                  "superblock number", &err);
 186                         if (err)
 187                                 return;
 188                         break;
 189                 default:
 190                         goto print_usage;
 191                 }
 192         }
 193         if (optind != argc-1) {
 194                 goto print_usage;
 195         }
 196         if (check_fs_not_open(argv[0]))
 197                 return;
 198         open_filesystem(argv[optind], open_flags,
 199                         superblock, blocksize, catastrophic,
 200                         data_filename);
 201         return;
 202
 203 print_usage:
 204         fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] "
 205                 "[-d image_filename] [-c] [-i] [-f] [-e] [-D] "
 206 #ifndef READ_ONLY
 207                 "[-w] "
 208 #endif
 209                 "<device>\n", argv[0]);
 210 }
 211
 212 void do_lcd(int argc, char **argv)
 213 {
 214         if (argc != 2) {
 215                 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>");
 216                 return;
 217         }
 218
 219         if (chdir(argv[1]) == -1) {
 220                 com_err(argv[0], errno,
 221                         "while trying to change native directory to %s",
 222                         argv[1]);
 223                 return;
 224         }
 225 }
 226
 227 static void close_filesystem(NOARGS)
 228 {
 229         int     retval;
 230
 231         if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
 232                 retval = ext2fs_write_inode_bitmap(current_fs);
 233                 if (retval)
 234                         com_err("ext2fs_write_inode_bitmap", retval, 0);
 235         }
 236         if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
 237                 retval = ext2fs_write_block_bitmap(current_fs);
 238                 if (retval)
 239                         com_err("ext2fs_write_block_bitmap", retval, 0);
 240         }
 241         retval = ext2fs_close(current_fs);
 242         if (retval)
 243                 com_err("ext2fs_close", retval, 0);
 244         current_fs = NULL;
 245         return;
 246 }
 247
 248 void do_close_filesys(int argc, char **argv)
 249 {
 250         int     c;
 251
 252         if (check_fs_open(argv[0]))
 253                 return;
 254
 255         reset_getopt();
 256         while ((c = getopt (argc, argv, "a")) != EOF) {
 257                 switch (c) {
 258                 case 'a':
 259                         current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
 260                         break;
 261                 default:
 262                         goto print_usage;
 263                 }
 264         }
 265
 266         if (argc > optind) {
 267         print_usage:
 268                 com_err(0, 0, "Usage: close_filesys [-a]");
 269                 return;
 270         }
 271
 272         close_filesystem();
 273 }
 274
 275 #ifndef READ_ONLY
 276 void do_init_filesys(int argc, char **argv)
 277 {
 278         struct ext2_super_block param;
 279         errcode_t       retval;
 280         int             err;
 281
 282         if (common_args_process(argc, argv, 3, 3, "initialize",
 283                                 "<device> <blocks>", CHECK_FS_NOTOPEN))
 284                 return;
 285
 286         memset(&param, 0, sizeof(struct ext2_super_block));
 287         ext2fs_blocks_count_set(&param, parse_ulong(argv[2], argv[0],
 288                                                     "blocks count", &err));
 289         if (err)
 290                 return;
 291         retval = ext2fs_initialize(argv[1], 0, &param,
 292                                    unix_io_manager, &current_fs);
 293         if (retval) {
 294                 com_err(argv[1], retval, "while initializing filesystem");
 295                 current_fs = NULL;
 296                 return;
 297         }
 298         root = cwd = EXT2_ROOT_INO;
 299         return;
 300 }
 301
 302 static void print_features(struct ext2_super_block * s, FILE *f)
 303 {
 304         int     i, j, printed=0;
 305         __u32   *mask = &s->s_feature_compat, m;
 306
 307         fputs("Filesystem features:", f);
 308         for (i=0; i <3; i++,mask++) {
 309                 for (j=0,m=1; j < 32; j++, m<<=1) {
 310                         if (*mask & m) {
 311                                 fprintf(f, " %s", e2p_feature2string(i, m));
 312                                 printed++;
 313                         }
 314                 }
 315         }
 316         if (printed == 0)
 317                 fputs("(none)", f);
 318         fputs("\n", f);
 319 }
 320 #endif /* READ_ONLY */
 321
 322 static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask,
 323                           const char *str, int *first, FILE *f)
 324 {
 325         if (ext2fs_bg_flags_test(fs, group, mask)) {
 326                 if (*first) {
 327                         fputs("           [", f);
 328                         *first = 0;
 329                 } else
 330                         fputs(", ", f);
 331                 fputs(str, f);
 332         }
 333 }
 334
 335 void do_show_super_stats(int argc, char *argv[])
 336 {
 337         const char *units ="block";
 338         dgrp_t  i;
 339         FILE    *out;
 340         int     c, header_only = 0;
 341         int     numdirs = 0, first, gdt_csum;
 342
 343         reset_getopt();
 344         while ((c = getopt (argc, argv, "h")) != EOF) {
 345                 switch (c) {
 346                 case 'h':
 347                         header_only++;
 348                         break;
 349                 default:
 350                         goto print_usage;
 351                 }
 352         }
 353         if (optind != argc) {
 354                 goto print_usage;
 355         }
 356         if (check_fs_open(argv[0]))
 357                 return;
 358         out = open_pager();
 359
 360         if (EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super,
 361                                        EXT4_FEATURE_RO_COMPAT_BIGALLOC))
 362                 units = "cluster";
 363
 364         list_super2(current_fs->super, out);
 365         for (i=0; i < current_fs->group_desc_count; i++)
 366                 numdirs += ext2fs_bg_used_dirs_count(current_fs, i);
 367         fprintf(out, "Directories:              %d\n", numdirs);
 368
 369         if (header_only) {
 370                 close_pager(out);
 371                 return;
 372         }
 373
 374         gdt_csum = EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super,
 375                                               EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
 376         for (i = 0; i < current_fs->group_desc_count; i++) {
 377                 fprintf(out, " Group %2d: block bitmap at %llu, "
 378                         "inode bitmap at %llu, "
 379                         "inode table at %llu\n"
 380                         "           %u free %s%s, "
 381                         "%u free %s, "
 382                         "%u used %s%s",
 383                         i, ext2fs_block_bitmap_loc(current_fs, i),
 384                         ext2fs_inode_bitmap_loc(current_fs, i),
 385                         ext2fs_inode_table_loc(current_fs, i),
 386                         ext2fs_bg_free_blocks_count(current_fs, i), units,
 387                         ext2fs_bg_free_blocks_count(current_fs, i) != 1 ?
 388                         "s" : "",
 389                         ext2fs_bg_free_inodes_count(current_fs, i),
 390                         ext2fs_bg_free_inodes_count(current_fs, i) != 1 ?
 391                         "inodes" : "inode",
 392                         ext2fs_bg_used_dirs_count(current_fs, i),
 393                         ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories"
 394                                 : "directory", gdt_csum ? ", " : "\n");
 395                 if (gdt_csum)
 396                         fprintf(out, "%u unused %s\n",
 397                                 ext2fs_bg_itable_unused(current_fs, i),
 398                                 ext2fs_bg_itable_unused(current_fs, i) != 1 ?
 399                                 "inodes" : "inode");
 400                 first = 1;
 401                 print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init",
 402                               &first, out);
 403                 print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init",
 404                               &first, out);
 405                 if (gdt_csum) {
 406                         fprintf(out, "%sChecksum 0x%04x",
 407                                 first ? "           [":", ", ext2fs_bg_checksum(current_fs, i));
 408                         first = 0;
 409                 }
 410                 if (!first)
 411                         fputs("]\n", out);
 412         }
 413         close_pager(out);
 414         return;
 415 print_usage:
 416         fprintf(stderr, "%s: Usage: show_super [-h]\n", argv[0]);
 417 }
 418
 419 #ifndef READ_ONLY
 420 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
 421                       char **argv EXT2FS_ATTR((unused)))
 422 {
 423         if (check_fs_open(argv[0]))
 424                 return;
 425         if (check_fs_read_write(argv[0]))
 426                 return;
 427
 428         if (argv[1] && !strcmp(argv[1], "-clean"))
 429                 current_fs->super->s_state |= EXT2_VALID_FS;
 430         else
 431                 current_fs->super->s_state &= ~EXT2_VALID_FS;
 432         ext2fs_mark_super_dirty(current_fs);
 433 }
 434 #endif /* READ_ONLY */
 435
 436 struct list_blocks_struct {
 437         FILE            *f;
 438         e2_blkcnt_t     total;
 439         blk64_t         first_block, last_block;
 440         e2_blkcnt_t     first_bcnt, last_bcnt;
 441         e2_blkcnt_t     first;
 442 };
 443
 444 static void finish_range(struct list_blocks_struct *lb)
 445 {
 446         if (lb->first_block == 0)
 447                 return;
 448         if (lb->first)
 449                 lb->first = 0;
 450         else
 451                 fprintf(lb->f, ", ");
 452         if (lb->first_block == lb->last_block)
 453                 fprintf(lb->f, "(%lld):%llu",
 454                         (long long)lb->first_bcnt, lb->first_block);
 455         else
 456                 fprintf(lb->f, "(%lld-%lld):%llu-%llu",
 457                         (long long)lb->first_bcnt, (long long)lb->last_bcnt,
 458                         lb->first_block, lb->last_block);
 459         lb->first_block = 0;
 460 }
 461
 462 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
 463                             blk64_t *blocknr, e2_blkcnt_t blockcnt,
 464                             blk64_t ref_block EXT2FS_ATTR((unused)),
 465                             int ref_offset EXT2FS_ATTR((unused)),
 466                             void *private)
 467 {
 468         struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
 469
 470         lb->total++;
 471         if (blockcnt >= 0) {
 472                 /*
 473                  * See if we can add on to the existing range (if it exists)
 474                  */
 475                 if (lb->first_block &&
 476                     (lb->last_block+1 == *blocknr) &&
 477                     (lb->last_bcnt+1 == blockcnt)) {
 478                         lb->last_block = *blocknr;
 479                         lb->last_bcnt = blockcnt;
 480                         return 0;
 481                 }
 482                 /*
 483                  * Start a new range.
 484                  */
 485                 finish_range(lb);
 486                 lb->first_block = lb->last_block = *blocknr;
 487                 lb->first_bcnt = lb->last_bcnt = blockcnt;
 488                 return 0;
 489         }
 490         /*
 491          * Not a normal block.  Always force a new range.
 492          */
 493         finish_range(lb);
 494         if (lb->first)
 495                 lb->first = 0;
 496         else
 497                 fprintf(lb->f, ", ");
 498         if (blockcnt == -1)
 499                 fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr);
 500         else if (blockcnt == -2)
 501                 fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr);
 502         else if (blockcnt == -3)
 503                 fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr);
 504         return 0;
 505 }
 506
 507 static void dump_xattr_string(FILE *out, const char *str, int len)
 508 {
 509         int printable = 0;
 510         int i;
 511
 512         /* check: is string "printable enough?" */
 513         for (i = 0; i < len; i++)
 514                 if (isprint(str[i]))
 515                         printable++;
 516
 517         if (printable <= len*7/8)
 518                 printable = 0;
 519
 520         for (i = 0; i < len; i++)
 521                 if (printable)
 522                         fprintf(out, isprint(str[i]) ? "%c" : "\\%03o",
 523                                 (unsigned char)str[i]);
 524                 else
 525                         fprintf(out, "%02x ", (unsigned char)str[i]);
 526 }
 527
 528 static void internal_dump_inode_extra(FILE *out,
 529                                       const char *prefix EXT2FS_ATTR((unused)),
 530                                       ext2_ino_t inode_num EXT2FS_ATTR((unused)),
 531                                       struct ext2_inode_large *inode)
 532 {
 533         struct ext2_ext_attr_entry *entry;
 534         __u32 *magic;
 535         char *start, *end;
 536         unsigned int storage_size;
 537
 538         fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
 539         if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
 540                         EXT2_GOOD_OLD_INODE_SIZE) {
 541                 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
 542                                 inode->i_extra_isize);
 543                 return;
 544         }
 545         storage_size = EXT2_INODE_SIZE(current_fs->super) -
 546                         EXT2_GOOD_OLD_INODE_SIZE -
 547                         inode->i_extra_isize;
 548         magic = (__u32 *)((char *)inode + EXT2_GOOD_OLD_INODE_SIZE +
 549                         inode->i_extra_isize);
 550         if (*magic == EXT2_EXT_ATTR_MAGIC) {
 551                 fprintf(out, "Extended attributes stored in inode body: \n");
 552                 end = (char *) inode + EXT2_INODE_SIZE(current_fs->super);
 553                 start = (char *) magic + sizeof(__u32);
 554                 entry = (struct ext2_ext_attr_entry *) start;
 555                 while (!EXT2_EXT_IS_LAST_ENTRY(entry)) {
 556                         struct ext2_ext_attr_entry *next =
 557                                 EXT2_EXT_ATTR_NEXT(entry);
 558                         if (entry->e_value_size > storage_size ||
 559                                         (char *) next >= end) {
 560                                 fprintf(out, "invalid EA entry in inode\n");
 561                                 return;
 562                         }
 563                         fprintf(out, "  ");
 564                         dump_xattr_string(out, EXT2_EXT_ATTR_NAME(entry),
 565                                           entry->e_name_len);
 566                         fprintf(out, " = \"");
 567                         dump_xattr_string(out, start + entry->e_value_offs,
 568                                                 entry->e_value_size);
 569                         fprintf(out, "\" (%u)\n", entry->e_value_size);
 570                         entry = next;
 571                 }
 572         }
 573 }
 574
 575 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
 576 {
 577         struct list_blocks_struct lb;
 578
 579         fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
 580         lb.total = 0;
 581         lb.first_block = 0;
 582         lb.f = f;
 583         lb.first = 1;
 584         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
 585                               list_blocks_proc, (void *)&lb);
 586         finish_range(&lb);
 587         if (lb.total)
 588                 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
 589         fprintf(f,"\n");
 590 }
 591
 592 static int int_log10(unsigned long long arg)
 593 {
 594         int     l = 0;
 595
 596         arg = arg / 10;
 597         while (arg) {
 598                 l++;
 599                 arg = arg / 10;
 600         }
 601         return l;
 602 }
 603
 604 #define DUMP_LEAF_EXTENTS       0x01
 605 #define DUMP_NODE_EXTENTS       0x02
 606 #define DUMP_EXTENT_TABLE       0x04
 607
 608 static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino,
 609                          int flags, int logical_width, int physical_width)
 610 {
 611         ext2_extent_handle_t    handle;
 612         struct ext2fs_extent    extent;
 613         struct ext2_extent_info info;
 614         int                     op = EXT2_EXTENT_ROOT;
 615         unsigned int            printed = 0;
 616         errcode_t               errcode;
 617
 618         errcode = ext2fs_extent_open(current_fs, ino, &handle);
 619         if (errcode)
 620                 return;
 621
 622         if (flags & DUMP_EXTENT_TABLE)
 623                 fprintf(f, "Level Entries %*s %*s Length Flags\n",
 624                         (logical_width*2)+3, "Logical",
 625                         (physical_width*2)+3, "Physical");
 626         else
 627                 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix);
 628
 629         while (1) {
 630                 errcode = ext2fs_extent_get(handle, op, &extent);
 631
 632                 if (errcode)
 633                         break;
 634
 635                 op = EXT2_EXTENT_NEXT;
 636
 637                 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 638                         continue;
 639
 640                 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
 641                         if ((flags & DUMP_LEAF_EXTENTS) == 0)
 642                                 continue;
 643                 } else {
 644                         if ((flags & DUMP_NODE_EXTENTS) == 0)
 645                                 continue;
 646                 }
 647
 648                 errcode = ext2fs_extent_get_info(handle, &info);
 649                 if (errcode)
 650                         continue;
 651
 652                 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) {
 653                         if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
 654                                 continue;
 655
 656                         if (flags & DUMP_EXTENT_TABLE) {
 657                                 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 658                                         "%*llu%*s %6u\n",
 659                                         info.curr_level, info.max_depth,
 660                                         info.curr_entry, info.num_entries,
 661                                         logical_width,
 662                                         extent.e_lblk,
 663                                         logical_width,
 664                                         extent.e_lblk + (extent.e_len - 1),
 665                                         physical_width,
 666                                         extent.e_pblk,
 667                                         physical_width+3, "", extent.e_len);
 668                                 continue;
 669                         }
 670
 671                         fprintf(f, "%s(ETB%d):%lld",
 672                                 printed ? ", " : "", info.curr_level,
 673                                 extent.e_pblk);
 674                         printed = 1;
 675                         continue;
 676                 }
 677
 678                 if (flags & DUMP_EXTENT_TABLE) {
 679                         fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
 680                                 "%*llu - %*llu %6u %s\n",
 681                                 info.curr_level, info.max_depth,
 682                                 info.curr_entry, info.num_entries,
 683                                 logical_width,
 684                                 extent.e_lblk,
 685                                 logical_width,
 686                                 extent.e_lblk + (extent.e_len - 1),
 687                                 physical_width,
 688                                 extent.e_pblk,
 689                                 physical_width,
 690                                 extent.e_pblk + (extent.e_len - 1),
 691                                 extent.e_len,
 692                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 693                                         "Uninit" : "");
 694                         continue;
 695                 }
 696
 697                 if (extent.e_len == 0)
 698                         continue;
 699                 else if (extent.e_len == 1)
 700                         fprintf(f,
 701                                 "%s(%lld%s):%lld",
 702                                 printed ? ", " : "",
 703                                 extent.e_lblk,
 704                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 705                                 "[u]" : "",
 706                                 extent.e_pblk);
 707                 else
 708                         fprintf(f,
 709                                 "%s(%lld-%lld%s):%lld-%lld",
 710                                 printed ? ", " : "",
 711                                 extent.e_lblk,
 712                                 extent.e_lblk + (extent.e_len - 1),
 713                                 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
 714                                         "[u]" : "",
 715                                 extent.e_pblk,
 716                                 extent.e_pblk + (extent.e_len - 1));
 717                 printed = 1;
 718         }
 719         if (printed)
 720                 fprintf(f, "\n");
 721 }
 722
 723 void internal_dump_inode(FILE *out, const char *prefix,
 724                          ext2_ino_t inode_num, struct ext2_inode *inode,
 725                          int do_dump_blocks)
 726 {
 727         const char *i_type;
 728         char frag, fsize;
 729         int os = current_fs->super->s_creator_os;
 730         struct ext2_inode_large *large_inode;
 731         int is_large_inode = 0;
 732
 733         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 734                 is_large_inode = 1;
 735         large_inode = (struct ext2_inode_large *) inode;
 736
 737         if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
 738         else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
 739         else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
 740         else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
 741         else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
 742         else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
 743         else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
 744         else i_type = "bad type";
 745         fprintf(out, "%sInode: %u   Type: %s    ", prefix, inode_num, i_type);
 746         fprintf(out, "%sMode:  %04o   Flags: 0x%x\n",
 747                 prefix, inode->i_mode & 0777, inode->i_flags);
 748         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 749                 fprintf(out, "%sGeneration: %u    Version: 0x%08x:%08x\n",
 750                         prefix, inode->i_generation, large_inode->i_version_hi,
 751                         inode->osd1.linux1.l_i_version);
 752         } else {
 753                 fprintf(out, "%sGeneration: %u    Version: 0x%08x\n", prefix,
 754                         inode->i_generation, inode->osd1.linux1.l_i_version);
 755         }
 756         fprintf(out, "%sUser: %5d   Group: %5d   Size: ",
 757                 prefix, inode_uid(*inode), inode_gid(*inode));
 758         if (LINUX_S_ISREG(inode->i_mode))
 759                 fprintf(out, "%llu\n", EXT2_I_SIZE(inode));
 760         else
 761                 fprintf(out, "%d\n", inode->i_size);
 762         if (os == EXT2_OS_HURD)
 763                 fprintf(out,
 764                         "%sFile ACL: %d    Directory ACL: %d Translator: %d\n",
 765                         prefix,
 766                         inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0,
 767                         inode->osd1.hurd1.h_i_translator);
 768         else
 769                 fprintf(out, "%sFile ACL: %llu    Directory ACL: %d\n",
 770                         prefix,
 771                         inode->i_file_acl | ((long long)
 772                                 (inode->osd2.linux2.l_i_file_acl_high) << 32),
 773                         LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0);
 774         if (os == EXT2_OS_LINUX)
 775                 fprintf(out, "%sLinks: %d   Blockcount: %llu\n",
 776                         prefix, inode->i_links_count,
 777                         (((unsigned long long)
 778                           inode->osd2.linux2.l_i_blocks_hi << 32)) +
 779                         inode->i_blocks);
 780         else
 781                 fprintf(out, "%sLinks: %d   Blockcount: %u\n",
 782                         prefix, inode->i_links_count, inode->i_blocks);
 783         switch (os) {
 784             case EXT2_OS_HURD:
 785                 frag = inode->osd2.hurd2.h_i_frag;
 786                 fsize = inode->osd2.hurd2.h_i_fsize;
 787                 break;
 788             default:
 789                 frag = fsize = 0;
 790         }
 791         fprintf(out, "%sFragment:  Address: %d    Number: %d    Size: %d\n",
 792                 prefix, inode->i_faddr, frag, fsize);
 793         if (is_large_inode && large_inode->i_extra_isize >= 24) {
 794                 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
 795                         inode->i_ctime, large_inode->i_ctime_extra,
 796                         time_to_string(inode->i_ctime));
 797                 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
 798                         inode->i_atime, large_inode->i_atime_extra,
 799                         time_to_string(inode->i_atime));
 800                 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
 801                         inode->i_mtime, large_inode->i_mtime_extra,
 802                         time_to_string(inode->i_mtime));
 803                 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
 804                         large_inode->i_crtime, large_inode->i_crtime_extra,
 805                         time_to_string(large_inode->i_crtime));
 806         } else {
 807                 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
 808                         time_to_string(inode->i_ctime));
 809                 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
 810                         time_to_string(inode->i_atime));
 811                 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
 812                         time_to_string(inode->i_mtime));
 813         }
 814         if (inode->i_dtime)
 815           fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime,
 816                   time_to_string(inode->i_dtime));
 817         if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
 818                 internal_dump_inode_extra(out, prefix, inode_num,
 819                                           (struct ext2_inode_large *) inode);
 820         if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_inode_data_blocks(current_fs,inode) == 0)
 821                 fprintf(out, "%sFast_link_dest: %.*s\n", prefix,
 822                         (int) inode->i_size, (char *)inode->i_block);
 823         else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
 824                 int major, minor;
 825                 const char *devnote;
 826
 827                 if (inode->i_block[0]) {
 828                         major = (inode->i_block[0] >> 8) & 255;
 829                         minor = inode->i_block[0] & 255;
 830                         devnote = "";
 831                 } else {
 832                         major = (inode->i_block[1] & 0xfff00) >> 8;
 833                         minor = ((inode->i_block[1] & 0xff) |
 834                                  ((inode->i_block[1] >> 12) & 0xfff00));
 835                         devnote = "(New-style) ";
 836                 }
 837                 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
 838                         devnote, major, minor, major, minor);
 839         } else if (do_dump_blocks) {
 840                 if (inode->i_flags & EXT4_EXTENTS_FL)
 841                         dump_extents(out, prefix, inode_num,
 842                                      DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0);
 843                 else
 844                         dump_blocks(out, prefix, inode_num);
 845         }
 846 }
 847
 848 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
 849 {
 850         FILE    *out;
 851
 852         out = open_pager();
 853         internal_dump_inode(out, "", inode_num, inode, 1);
 854         close_pager(out);
 855 }
 856
 857 void do_stat(int argc, char *argv[])
 858 {
 859         ext2_ino_t      inode;
 860         struct ext2_inode * inode_buf;
 861
 862         if (check_fs_open(argv[0]))
 863                 return;
 864
 865         inode_buf = (struct ext2_inode *)
 866                         malloc(EXT2_INODE_SIZE(current_fs->super));
 867         if (!inode_buf) {
 868                 fprintf(stderr, "do_stat: can't allocate buffer\n");
 869                 return;
 870         }
 871
 872         if (common_inode_args_process(argc, argv, &inode, 0)) {
 873                 free(inode_buf);
 874                 return;
 875         }
 876
 877         if (debugfs_read_inode_full(inode, inode_buf, argv[0],
 878                                         EXT2_INODE_SIZE(current_fs->super))) {
 879                 free(inode_buf);
 880                 return;
 881         }
 882
 883         dump_inode(inode, inode_buf);
 884         free(inode_buf);
 885         return;
 886 }
 887
 888 void do_dump_extents(int argc, char **argv)
 889 {
 890         struct ext2_inode inode;
 891         ext2_ino_t      ino;
 892         FILE            *out;
 893         int             c, flags = 0;
 894         int             logical_width;
 895         int             physical_width;
 896
 897         reset_getopt();
 898         while ((c = getopt(argc, argv, "nl")) != EOF) {
 899                 switch (c) {
 900                 case 'n':
 901                         flags |= DUMP_NODE_EXTENTS;
 902                         break;
 903                 case 'l':
 904                         flags |= DUMP_LEAF_EXTENTS;
 905                         break;
 906                 }
 907         }
 908
 909         if (argc != optind + 1) {
 910                 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
 911                 return;
 912         }
 913
 914         if (flags == 0)
 915                 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
 916         flags |= DUMP_EXTENT_TABLE;
 917
 918         if (check_fs_open(argv[0]))
 919                 return;
 920
 921         ino = string_to_inode(argv[optind]);
 922         if (ino == 0)
 923                 return;
 924
 925         if (debugfs_read_inode(ino, &inode, argv[0]))
 926                 return;
 927
 928         if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
 929                 fprintf(stderr, "%s: does not uses extent block maps\n",
 930                         argv[optind]);
 931                 return;
 932         }
 933
 934         logical_width = int_log10((EXT2_I_SIZE(&inode)+current_fs->blocksize-1)/
 935                                   current_fs->blocksize) + 1;
 936         if (logical_width < 5)
 937                 logical_width = 5;
 938         physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1;
 939         if (physical_width < 5)
 940                 physical_width = 5;
 941
 942         out = open_pager();
 943         dump_extents(out, "", ino, flags, logical_width, physical_width);
 944         close_pager(out);
 945         return;
 946 }
 947
 948 static int print_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
 949                              blk64_t *blocknr,
 950                              e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
 951                              blk64_t ref_block EXT2FS_ATTR((unused)),
 952                              int ref_offset EXT2FS_ATTR((unused)),
 953                              void *private EXT2FS_ATTR((unused)))
 954 {
 955         printf("%llu ", *blocknr);
 956         return 0;
 957 }
 958
 959 void do_blocks(int argc, char *argv[])
 960 {
 961         ext2_ino_t      inode;
 962
 963         if (check_fs_open(argv[0]))
 964                 return;
 965
 966         if (common_inode_args_process(argc, argv, &inode, 0)) {
 967                 return;
 968         }
 969
 970         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
 971                               print_blocks_proc, NULL);
 972         fputc('\n', stdout);
 973         return;
 974 }
 975
 976 void do_chroot(int argc, char *argv[])
 977 {
 978         ext2_ino_t inode;
 979         int retval;
 980
 981         if (common_inode_args_process(argc, argv, &inode, 0))
 982                 return;
 983
 984         retval = ext2fs_check_directory(current_fs, inode);
 985         if (retval)  {
 986                 com_err(argv[1], retval, 0);
 987                 return;
 988         }
 989         root = inode;
 990 }
 991
 992 #ifndef READ_ONLY
 993 void do_clri(int argc, char *argv[])
 994 {
 995         ext2_ino_t inode;
 996         struct ext2_inode inode_buf;
 997
 998         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
 999                 return;
1000
1001         if (debugfs_read_inode(inode, &inode_buf, argv[0]))
1002                 return;
1003         memset(&inode_buf, 0, sizeof(inode_buf));
1004         if (debugfs_write_inode(inode, &inode_buf, argv[0]))
1005                 return;
1006 }
1007
1008 void do_freei(int argc, char *argv[])
1009 {
1010         unsigned int    len = 1;
1011         int             err = 0;
1012         ext2_ino_t      inode;
1013
1014         if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1015                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1016                 return;
1017         if (check_fs_read_write(argv[0]))
1018                 return;
1019
1020         inode = string_to_inode(argv[1]);
1021         if (!inode)
1022                 return;
1023
1024         if (argc == 3) {
1025                 len = parse_ulong(argv[2], argv[0], "length", &err);
1026                 if (err)
1027                         return;
1028         }
1029
1030         if (len == 1 &&
1031             !ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1032                 com_err(argv[0], 0, "Warning: inode already clear");
1033         while (len-- > 0)
1034                 ext2fs_unmark_inode_bitmap2(current_fs->inode_map, inode++);
1035         ext2fs_mark_ib_dirty(current_fs);
1036 }
1037
1038 void do_seti(int argc, char *argv[])
1039 {
1040         unsigned int    len = 1;
1041         int             err = 0;
1042         ext2_ino_t      inode;
1043
1044         if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1045                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1046                 return;
1047         if (check_fs_read_write(argv[0]))
1048                 return;
1049
1050         inode = string_to_inode(argv[1]);
1051         if (!inode)
1052                 return;
1053
1054         if (argc == 3) {
1055                 len = parse_ulong(argv[2], argv[0], "length", &err);
1056                 if (err)
1057                         return;
1058         }
1059
1060         if ((len == 1) &&
1061             ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1062                 com_err(argv[0], 0, "Warning: inode already set");
1063         while (len-- > 0)
1064                 ext2fs_mark_inode_bitmap2(current_fs->inode_map, inode++);
1065         ext2fs_mark_ib_dirty(current_fs);
1066 }
1067 #endif /* READ_ONLY */
1068
1069 void do_testi(int argc, char *argv[])
1070 {
1071         ext2_ino_t inode;
1072
1073         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
1074                 return;
1075
1076         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1077                 printf("Inode %u is marked in use\n", inode);
1078         else
1079                 printf("Inode %u is not in use\n", inode);
1080 }
1081
1082 #ifndef READ_ONLY
1083 void do_freeb(int argc, char *argv[])
1084 {
1085         blk64_t block;
1086         blk64_t count = 1;
1087
1088         if (common_block_args_process(argc, argv, &block, &count))
1089                 return;
1090         if (check_fs_read_write(argv[0]))
1091                 return;
1092         while (count-- > 0) {
1093                 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
1094                         com_err(argv[0], 0, "Warning: block %llu already clear",
1095                                 block);
1096                 ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
1097                 block++;
1098         }
1099         ext2fs_mark_bb_dirty(current_fs);
1100 }
1101
1102 void do_setb(int argc, char *argv[])
1103 {
1104         blk64_t block;
1105         blk64_t count = 1;
1106
1107         if (common_block_args_process(argc, argv, &block, &count))
1108                 return;
1109         if (check_fs_read_write(argv[0]))
1110                 return;
1111         while (count-- > 0) {
1112                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1113                         com_err(argv[0], 0, "Warning: block %llu already set",
1114                                 block);
1115                 ext2fs_mark_block_bitmap2(current_fs->block_map,block);
1116                 block++;
1117         }
1118         ext2fs_mark_bb_dirty(current_fs);
1119 }
1120 #endif /* READ_ONLY */
1121
1122 void do_testb(int argc, char *argv[])
1123 {
1124         blk64_t block;
1125         blk64_t count = 1;
1126
1127         if (common_block_args_process(argc, argv, &block, &count))
1128                 return;
1129         while (count-- > 0) {
1130                 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1131                         printf("Block %llu marked in use\n", block);
1132                 else
1133                         printf("Block %llu not in use\n", block);
1134                 block++;
1135         }
1136 }
1137
1138 #ifndef READ_ONLY
1139 static void modify_u8(char *com, const char *prompt,
1140                       const char *format, __u8 *val)
1141 {
1142         char buf[200];
1143         unsigned long v;
1144         char *tmp;
1145
1146         sprintf(buf, format, *val);
1147         printf("%30s    [%s] ", prompt, buf);
1148         if (!fgets(buf, sizeof(buf), stdin))
1149                 return;
1150         if (buf[strlen (buf) - 1] == '\n')
1151                 buf[strlen (buf) - 1] = '\0';
1152         if (!buf[0])
1153                 return;
1154         v = strtoul(buf, &tmp, 0);
1155         if (*tmp)
1156                 com_err(com, 0, "Bad value - %s", buf);
1157         else
1158                 *val = v;
1159 }
1160
1161 static void modify_u16(char *com, const char *prompt,
1162                        const char *format, __u16 *val)
1163 {
1164         char buf[200];
1165         unsigned long v;
1166         char *tmp;
1167
1168         sprintf(buf, format, *val);
1169         printf("%30s    [%s] ", prompt, buf);
1170         if (!fgets(buf, sizeof(buf), stdin))
1171                 return;
1172         if (buf[strlen (buf) - 1] == '\n')
1173                 buf[strlen (buf) - 1] = '\0';
1174         if (!buf[0])
1175                 return;
1176         v = strtoul(buf, &tmp, 0);
1177         if (*tmp)
1178                 com_err(com, 0, "Bad value - %s", buf);
1179         else
1180                 *val = v;
1181 }
1182
1183 static void modify_u32(char *com, const char *prompt,
1184                        const char *format, __u32 *val)
1185 {
1186         char buf[200];
1187         unsigned long v;
1188         char *tmp;
1189
1190         sprintf(buf, format, *val);
1191         printf("%30s    [%s] ", prompt, buf);
1192         if (!fgets(buf, sizeof(buf), stdin))
1193                 return;
1194         if (buf[strlen (buf) - 1] == '\n')
1195                 buf[strlen (buf) - 1] = '\0';
1196         if (!buf[0])
1197                 return;
1198         v = strtoul(buf, &tmp, 0);
1199         if (*tmp)
1200                 com_err(com, 0, "Bad value - %s", buf);
1201         else
1202                 *val = v;
1203 }
1204
1205
1206 void do_modify_inode(int argc, char *argv[])
1207 {
1208         struct ext2_inode inode;
1209         ext2_ino_t      inode_num;
1210         int             i;
1211         unsigned char   *frag, *fsize;
1212         char            buf[80];
1213         int             os;
1214         const char      *hex_format = "0x%x";
1215         const char      *octal_format = "0%o";
1216         const char      *decimal_format = "%d";
1217         const char      *unsignedlong_format = "%lu";
1218
1219         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1220                 return;
1221
1222         os = current_fs->super->s_creator_os;
1223
1224         if (debugfs_read_inode(inode_num, &inode, argv[1]))
1225                 return;
1226
1227         modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1228         modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1229         modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1230         modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1231         modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1232         modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1233         modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1234         modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1235         modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1236         if (os == EXT2_OS_LINUX)
1237                 modify_u16(argv[0], "Block count high", unsignedlong_format,
1238                            &inode.osd2.linux2.l_i_blocks_hi);
1239         modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1240         modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1241         modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1242 #if 0
1243         modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1244 #endif
1245         modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1246         if (LINUX_S_ISDIR(inode.i_mode))
1247                 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
1248         else
1249                 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
1250
1251         if (os == EXT2_OS_HURD)
1252                 modify_u32(argv[0], "Translator Block",
1253                             decimal_format, &inode.osd1.hurd1.h_i_translator);
1254
1255         modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1256         switch (os) {
1257             case EXT2_OS_HURD:
1258                 frag = &inode.osd2.hurd2.h_i_frag;
1259                 fsize = &inode.osd2.hurd2.h_i_fsize;
1260                 break;
1261             default:
1262                 frag = fsize = 0;
1263         }
1264         if (frag)
1265                 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1266         if (fsize)
1267                 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1268
1269         for (i=0;  i < EXT2_NDIR_BLOCKS; i++) {
1270                 sprintf(buf, "Direct Block #%d", i);
1271                 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1272         }
1273         modify_u32(argv[0], "Indirect Block", decimal_format,
1274                     &inode.i_block[EXT2_IND_BLOCK]);
1275         modify_u32(argv[0], "Double Indirect Block", decimal_format,
1276                     &inode.i_block[EXT2_DIND_BLOCK]);
1277         modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1278                     &inode.i_block[EXT2_TIND_BLOCK]);
1279         if (debugfs_write_inode(inode_num, &inode, argv[1]))
1280                 return;
1281 }
1282 #endif /* READ_ONLY */
1283
1284 void do_change_working_dir(int argc, char *argv[])
1285 {
1286         ext2_ino_t      inode;
1287         int             retval;
1288
1289         if (common_inode_args_process(argc, argv, &inode, 0))
1290                 return;
1291
1292         retval = ext2fs_check_directory(current_fs, inode);
1293         if (retval) {
1294                 com_err(argv[1], retval, 0);
1295                 return;
1296         }
1297         cwd = inode;
1298         return;
1299 }
1300
1301 void do_print_working_directory(int argc, char *argv[])
1302 {
1303         int     retval;
1304         char    *pathname = NULL;
1305
1306         if (common_args_process(argc, argv, 1, 1,
1307                                 "print_working_directory", "", 0))
1308                 return;
1309
1310         retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1311         if (retval) {
1312                 com_err(argv[0], retval,
1313                         "while trying to get pathname of cwd");
1314         }
1315         printf("[pwd]   INODE: %6u  PATH: %s\n",
1316                cwd, pathname ? pathname : "NULL");
1317         if (pathname) {
1318                 free(pathname);
1319                 pathname = NULL;
1320         }
1321         retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1322         if (retval) {
1323                 com_err(argv[0], retval,
1324                         "while trying to get pathname of root");
1325         }
1326         printf("[root]  INODE: %6u  PATH: %s\n",
1327                root, pathname ? pathname : "NULL");
1328         if (pathname) {
1329                 free(pathname);
1330                 pathname = NULL;
1331         }
1332         return;
1333 }
1334
1335 #ifndef READ_ONLY
1336 static void make_link(char *sourcename, char *destname)
1337 {
1338         ext2_ino_t      ino;
1339         struct ext2_inode inode;
1340         int             retval;
1341         ext2_ino_t      dir;
1342         char            *dest, *cp, *base_name;
1343
1344         /*
1345          * Get the source inode
1346          */
1347         ino = string_to_inode(sourcename);
1348         if (!ino)
1349                 return;
1350         base_name = strrchr(sourcename, '/');
1351         if (base_name)
1352                 base_name++;
1353         else
1354                 base_name = sourcename;
1355         /*
1356          * Figure out the destination.  First see if it exists and is
1357          * a directory.
1358          */
1359         if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1360                 dest = base_name;
1361         else {
1362                 /*
1363                  * OK, it doesn't exist.  See if it is
1364                  * '<dir>/basename' or 'basename'
1365                  */
1366                 cp = strrchr(destname, '/');
1367                 if (cp) {
1368                         *cp = 0;
1369                         dir = string_to_inode(destname);
1370                         if (!dir)
1371                                 return;
1372                         dest = cp+1;
1373                 } else {
1374                         dir = cwd;
1375                         dest = destname;
1376                 }
1377         }
1378
1379         if (debugfs_read_inode(ino, &inode, sourcename))
1380                 return;
1381
1382         retval = ext2fs_link(current_fs, dir, dest, ino,
1383                              ext2_file_type(inode.i_mode));
1384         if (retval)
1385                 com_err("make_link", retval, 0);
1386         return;
1387 }
1388
1389
1390 void do_link(int argc, char *argv[])
1391 {
1392         if (common_args_process(argc, argv, 3, 3, "link",
1393                                 "<source file> <dest_name>", CHECK_FS_RW))
1394                 return;
1395
1396         make_link(argv[1], argv[2]);
1397 }
1398
1399 static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1400                             e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1401                             blk64_t ref_block EXT2FS_ATTR((unused)),
1402                             int ref_offset EXT2FS_ATTR((unused)),
1403                             void *private EXT2FS_ATTR((unused)))
1404 {
1405         blk64_t block;
1406
1407         block = *blocknr;
1408         ext2fs_block_alloc_stats2(fs, block, +1);
1409         return 0;
1410 }
1411
1412 void do_undel(int argc, char *argv[])
1413 {
1414         ext2_ino_t      ino;
1415         struct ext2_inode inode;
1416
1417         if (common_args_process(argc, argv, 2, 3, "undelete",
1418                                 "<inode_num> [dest_name]",
1419                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
1420                 return;
1421
1422         ino = string_to_inode(argv[1]);
1423         if (!ino)
1424                 return;
1425
1426         if (debugfs_read_inode(ino, &inode, argv[1]))
1427                 return;
1428
1429         if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
1430                 com_err(argv[1], 0, "Inode is not marked as deleted");
1431                 return;
1432         }
1433
1434         /*
1435          * XXX this function doesn't handle changing the links count on the
1436          * parent directory when undeleting a directory.
1437          */
1438         inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1439         inode.i_dtime = 0;
1440
1441         if (debugfs_write_inode(ino, &inode, argv[0]))
1442                 return;
1443
1444         ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1445                               mark_blocks_proc, NULL);
1446
1447         ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1448
1449         if (argc > 2)
1450                 make_link(argv[1], argv[2]);
1451 }
1452
1453 static void unlink_file_by_name(char *filename)
1454 {
1455         int             retval;
1456         ext2_ino_t      dir;
1457         char            *base_name;
1458
1459         base_name = strrchr(filename, '/');
1460         if (base_name) {
1461                 *base_name++ = '\0';
1462                 dir = string_to_inode(filename);
1463                 if (!dir)
1464                         return;
1465         } else {
1466                 dir = cwd;
1467                 base_name = filename;
1468         }
1469         retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1470         if (retval)
1471                 com_err("unlink_file_by_name", retval, 0);
1472         return;
1473 }
1474
1475 void do_unlink(int argc, char *argv[])
1476 {
1477         if (common_args_process(argc, argv, 2, 2, "link",
1478                                 "<pathname>", CHECK_FS_RW))
1479                 return;
1480
1481         unlink_file_by_name(argv[1]);
1482 }
1483 #endif /* READ_ONLY */
1484
1485 void do_find_free_block(int argc, char *argv[])
1486 {
1487         blk64_t free_blk, goal, first_free = 0;
1488         int             count;
1489         errcode_t       retval;
1490         char            *tmp;
1491
1492         if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1493                 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1494                 return;
1495         }
1496         if (check_fs_open(argv[0]))
1497                 return;
1498
1499         if (argc > 1) {
1500                 count = strtol(argv[1],&tmp,0);
1501                 if (*tmp) {
1502                         com_err(argv[0], 0, "Bad count - %s", argv[1]);
1503                         return;
1504                 }
1505         } else
1506                 count = 1;
1507
1508         if (argc > 2) {
1509                 goal = strtol(argv[2], &tmp, 0);
1510                 if (*tmp) {
1511                         com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1512                         return;
1513                 }
1514         }
1515         else
1516                 goal = current_fs->super->s_first_data_block;
1517
1518         printf("Free blocks found: ");
1519         free_blk = goal - 1;
1520         while (count-- > 0) {
1521                 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
1522                                            &free_blk);
1523                 if (first_free) {
1524                         if (first_free == free_blk)
1525                                 break;
1526                 } else
1527                         first_free = free_blk;
1528                 if (retval) {
1529                         com_err("ext2fs_new_block", retval, 0);
1530                         return;
1531                 } else
1532                         printf("%llu ", free_blk);
1533         }
1534         printf("\n");
1535 }
1536
1537 void do_find_free_inode(int argc, char *argv[])
1538 {
1539         ext2_ino_t      free_inode, dir;
1540         int             mode;
1541         int             retval;
1542         char            *tmp;
1543
1544         if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1545                 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
1546                 return;
1547         }
1548         if (check_fs_open(argv[0]))
1549                 return;
1550
1551         if (argc > 1) {
1552                 dir = strtol(argv[1], &tmp, 0);
1553                 if (*tmp) {
1554                         com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1555                         return;
1556                 }
1557         }
1558         else
1559                 dir = root;
1560         if (argc > 2) {
1561                 mode = strtol(argv[2], &tmp, 0);
1562                 if (*tmp) {
1563                         com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1564                         return;
1565                 }
1566         } else
1567                 mode = 010755;
1568
1569         retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1570         if (retval)
1571                 com_err("ext2fs_new_inode", retval, 0);
1572         else
1573                 printf("Free inode found: %u\n", free_inode);
1574 }
1575
1576 #ifndef READ_ONLY
1577 static errcode_t copy_file(int fd, ext2_ino_t newfile, int bufsize, int make_holes)
1578 {
1579         ext2_file_t     e2_file;
1580         errcode_t       retval;
1581         int             got;
1582         unsigned int    written;
1583         char            *buf;
1584         char            *ptr;
1585         char            *zero_buf;
1586         int             cmp;
1587
1588         retval = ext2fs_file_open(current_fs, newfile,
1589                                   EXT2_FILE_WRITE, &e2_file);
1590         if (retval)
1591                 return retval;
1592
1593         retval = ext2fs_get_mem(bufsize, &buf);
1594         if (retval) {
1595                 com_err("copy_file", retval, "can't allocate buffer\n");
1596                 return retval;
1597         }
1598
1599         /* This is used for checking whether the whole block is zero */
1600         retval = ext2fs_get_memzero(bufsize, &zero_buf);
1601         if (retval) {
1602                 com_err("copy_file", retval, "can't allocate buffer\n");
1603                 ext2fs_free_mem(&buf);
1604                 return retval;
1605         }
1606
1607         while (1) {
1608                 got = read(fd, buf, bufsize);
1609                 if (got == 0)
1610                         break;
1611                 if (got < 0) {
1612                         retval = errno;
1613                         goto fail;
1614                 }
1615                 ptr = buf;
1616
1617                 /* Sparse copy */
1618                 if (make_holes) {
1619                         /* Check whether all is zero */
1620                         cmp = memcmp(ptr, zero_buf, got);
1621                         if (cmp == 0) {
1622                                  /* The whole block is zero, make a hole */
1623                                 retval = ext2fs_file_lseek(e2_file, got, EXT2_SEEK_CUR, NULL);
1624                                 if (retval)
1625                                         goto fail;
1626                                 got = 0;
1627                         }
1628                 }
1629
1630                 /* Normal copy */
1631                 while (got > 0) {
1632                         retval = ext2fs_file_write(e2_file, ptr,
1633                                                    got, &written);
1634                         if (retval)
1635                                 goto fail;
1636
1637                         got -= written;
1638                         ptr += written;
1639                 }
1640         }
1641         ext2fs_free_mem(&buf);
1642         ext2fs_free_mem(&zero_buf);
1643         retval = ext2fs_file_close(e2_file);
1644         return retval;
1645
1646 fail:
1647         ext2fs_free_mem(&buf);
1648         ext2fs_free_mem(&zero_buf);
1649         (void) ext2fs_file_close(e2_file);
1650         return retval;
1651 }
1652
1653
1654 void do_write(int argc, char *argv[])
1655 {
1656         int             fd;
1657         struct stat     statbuf;
1658         ext2_ino_t      newfile;
1659         errcode_t       retval;
1660         struct ext2_inode inode;
1661         int             bufsize = IO_BUFSIZE;
1662         int             make_holes = 0;
1663
1664         if (common_args_process(argc, argv, 3, 3, "write",
1665                                 "<native file> <new file>", CHECK_FS_RW))
1666                 return;
1667
1668         fd = open(argv[1], O_RDONLY);
1669         if (fd < 0) {
1670                 com_err(argv[1], errno, 0);
1671                 return;
1672         }
1673         if (fstat(fd, &statbuf) < 0) {
1674                 com_err(argv[1], errno, 0);
1675                 close(fd);
1676                 return;
1677         }
1678
1679         retval = ext2fs_namei(current_fs, root, cwd, argv[2], &newfile);
1680         if (retval == 0) {
1681                 com_err(argv[0], 0, "The file '%s' already exists\n", argv[2]);
1682                 close(fd);
1683                 return;
1684         }
1685
1686         retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1687         if (retval) {
1688                 com_err(argv[0], retval, 0);
1689                 close(fd);
1690                 return;
1691         }
1692         printf("Allocated inode: %u\n", newfile);
1693         retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1694                              EXT2_FT_REG_FILE);
1695         if (retval == EXT2_ET_DIR_NO_SPACE) {
1696                 retval = ext2fs_expand_dir(current_fs, cwd);
1697                 if (retval) {
1698                         com_err(argv[0], retval, "while expanding directory");
1699                         close(fd);
1700                         return;
1701                 }
1702                 retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1703                                      EXT2_FT_REG_FILE);
1704         }
1705         if (retval) {
1706                 com_err(argv[2], retval, 0);
1707                 close(fd);
1708                 return;
1709         }
1710         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile))
1711                 com_err(argv[0], 0, "Warning: inode already set");
1712         ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0);
1713         memset(&inode, 0, sizeof(inode));
1714         inode.i_mode = (statbuf.st_mode & ~LINUX_S_IFMT) | LINUX_S_IFREG;
1715         inode.i_atime = inode.i_ctime = inode.i_mtime =
1716                 current_fs->now ? current_fs->now : time(0);
1717         inode.i_links_count = 1;
1718         inode.i_size = statbuf.st_size;
1719         if (current_fs->super->s_feature_incompat &
1720             EXT3_FEATURE_INCOMPAT_EXTENTS) {
1721                 int i;
1722                 struct ext3_extent_header *eh;
1723
1724                 eh = (struct ext3_extent_header *) &inode.i_block[0];
1725                 eh->eh_depth = 0;
1726                 eh->eh_entries = 0;
1727                 eh->eh_magic = EXT3_EXT_MAGIC;
1728                 i = (sizeof(inode.i_block) - sizeof(*eh)) /
1729                         sizeof(struct ext3_extent);
1730                 eh->eh_max = ext2fs_cpu_to_le16(i);
1731                 inode.i_flags |= EXT4_EXTENTS_FL;
1732         }
1733         if (debugfs_write_new_inode(newfile, &inode, argv[0])) {
1734                 close(fd);
1735                 return;
1736         }
1737         if (LINUX_S_ISREG(inode.i_mode)) {
1738                 if (statbuf.st_blocks < statbuf.st_size / S_BLKSIZE) {
1739                         make_holes = 1;
1740                         /*
1741                          * Use I/O blocksize as buffer size when
1742                          * copying sparse files.
1743                          */
1744                         bufsize = statbuf.st_blksize;
1745                 }
1746                 retval = copy_file(fd, newfile, bufsize, make_holes);
1747                 if (retval)
1748                         com_err("copy_file", retval, 0);
1749         }
1750         close(fd);
1751 }
1752
1753 void do_mknod(int argc, char *argv[])
1754 {
1755         unsigned long   mode, major, minor;
1756         ext2_ino_t      newfile;
1757         errcode_t       retval;
1758         struct ext2_inode inode;
1759         int             filetype, nr;
1760
1761         if (check_fs_open(argv[0]))
1762                 return;
1763         if (argc < 3 || argv[2][1]) {
1764         usage:
1765                 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1766                 return;
1767         }
1768         mode = minor = major = 0;
1769         switch (argv[2][0]) {
1770                 case 'p':
1771                         mode = LINUX_S_IFIFO;
1772                         filetype = EXT2_FT_FIFO;
1773                         nr = 3;
1774                         break;
1775                 case 'c':
1776                         mode = LINUX_S_IFCHR;
1777                         filetype = EXT2_FT_CHRDEV;
1778                         nr = 5;
1779                         break;
1780                 case 'b':
1781                         mode = LINUX_S_IFBLK;
1782                         filetype = EXT2_FT_BLKDEV;
1783                         nr = 5;
1784                         break;
1785                 default:
1786                         filetype = 0;
1787                         nr = 0;
1788         }
1789         if (nr == 5) {
1790                 major = strtoul(argv[3], argv+3, 0);
1791                 minor = strtoul(argv[4], argv+4, 0);
1792                 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1793                         nr = 0;
1794         }
1795         if (argc != nr)
1796                 goto usage;
1797         if (check_fs_read_write(argv[0]))
1798                 return;
1799         retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1800         if (retval) {
1801                 com_err(argv[0], retval, 0);
1802                 return;
1803         }
1804         printf("Allocated inode: %u\n", newfile);
1805         retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype);
1806         if (retval == EXT2_ET_DIR_NO_SPACE) {
1807                 retval = ext2fs_expand_dir(current_fs, cwd);
1808                 if (retval) {
1809                         com_err(argv[0], retval, "while expanding directory");
1810                         return;
1811                 }
1812                 retval = ext2fs_link(current_fs, cwd, argv[1], newfile,
1813                                      filetype);
1814         }
1815         if (retval) {
1816                 com_err(argv[1], retval, 0);
1817                 return;
1818         }
1819         if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile))
1820                 com_err(argv[0], 0, "Warning: inode already set");
1821         ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0);
1822         memset(&inode, 0, sizeof(inode));
1823         inode.i_mode = mode;
1824         inode.i_atime = inode.i_ctime = inode.i_mtime =
1825                 current_fs->now ? current_fs->now : time(0);
1826         if ((major < 256) && (minor < 256)) {
1827                 inode.i_block[0] = major*256+minor;
1828                 inode.i_block[1] = 0;
1829         } else {
1830                 inode.i_block[0] = 0;
1831                 inode.i_block[1] = (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12);
1832         }
1833         inode.i_links_count = 1;
1834         if (debugfs_write_new_inode(newfile, &inode, argv[0]))
1835                 return;
1836 }
1837
1838 void do_mkdir(int argc, char *argv[])
1839 {
1840         char    *cp;
1841         ext2_ino_t      parent;
1842         char    *name;
1843         errcode_t retval;
1844
1845         if (common_args_process(argc, argv, 2, 2, "mkdir",
1846                                 "<filename>", CHECK_FS_RW))
1847                 return;
1848
1849         cp = strrchr(argv[1], '/');
1850         if (cp) {
1851                 *cp = 0;
1852                 parent = string_to_inode(argv[1]);
1853                 if (!parent) {
1854                         com_err(argv[1], ENOENT, 0);
1855                         return;
1856                 }
1857                 name = cp+1;
1858         } else {
1859                 parent = cwd;
1860                 name = argv[1];
1861         }
1862
1863 try_again:
1864         retval = ext2fs_mkdir(current_fs, parent, 0, name);
1865         if (retval == EXT2_ET_DIR_NO_SPACE) {
1866                 retval = ext2fs_expand_dir(current_fs, parent);
1867                 if (retval) {
1868                         com_err(argv[0], retval, "while expanding directory");
1869                         return;
1870                 }
1871                 goto try_again;
1872         }
1873         if (retval) {
1874                 com_err("ext2fs_mkdir", retval, 0);
1875                 return;
1876         }
1877
1878 }
1879
1880 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1881                                e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1882                                blk64_t ref_block EXT2FS_ATTR((unused)),
1883                                int ref_offset EXT2FS_ATTR((unused)),
1884                                void *private EXT2FS_ATTR((unused)))
1885 {
1886         blk64_t block;
1887
1888         block = *blocknr;
1889         ext2fs_block_alloc_stats2(fs, block, -1);
1890         return 0;
1891 }
1892
1893 static void kill_file_by_inode(ext2_ino_t inode)
1894 {
1895         struct ext2_inode inode_buf;
1896
1897         if (debugfs_read_inode(inode, &inode_buf, 0))
1898                 return;
1899         inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1900         if (debugfs_write_inode(inode, &inode_buf, 0))
1901                 return;
1902         if (!ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf))
1903                 return;
1904
1905         ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
1906                               release_blocks_proc, NULL);
1907         printf("\n");
1908         ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1909                                   LINUX_S_ISDIR(inode_buf.i_mode));
1910 }
1911
1912
1913 void do_kill_file(int argc, char *argv[])
1914 {
1915         ext2_ino_t inode_num;
1916
1917         if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1918                 return;
1919
1920         kill_file_by_inode(inode_num);
1921 }
1922
1923 void do_rm(int argc, char *argv[])
1924 {
1925         int retval;
1926         ext2_ino_t inode_num;
1927         struct ext2_inode inode;
1928
1929         if (common_args_process(argc, argv, 2, 2, "rm",
1930                                 "<filename>", CHECK_FS_RW))
1931                 return;
1932
1933         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1934         if (retval) {
1935                 com_err(argv[0], retval, "while trying to resolve filename");
1936                 return;
1937         }
1938
1939         if (debugfs_read_inode(inode_num, &inode, argv[0]))
1940                 return;
1941
1942         if (LINUX_S_ISDIR(inode.i_mode)) {
1943                 com_err(argv[0], 0, "file is a directory");
1944                 return;
1945         }
1946
1947         --inode.i_links_count;
1948         if (debugfs_write_inode(inode_num, &inode, argv[0]))
1949                 return;
1950
1951         unlink_file_by_name(argv[1]);
1952         if (inode.i_links_count == 0)
1953                 kill_file_by_inode(inode_num);
1954 }
1955
1956 struct rd_struct {
1957         ext2_ino_t      parent;
1958         int             empty;
1959 };
1960
1961 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1962                       int       entry EXT2FS_ATTR((unused)),
1963                       struct ext2_dir_entry *dirent,
1964                       int       offset EXT2FS_ATTR((unused)),
1965                       int       blocksize EXT2FS_ATTR((unused)),
1966                       char      *buf EXT2FS_ATTR((unused)),
1967                       void      *private)
1968 {
1969         struct rd_struct *rds = (struct rd_struct *) private;
1970
1971         if (dirent->inode == 0)
1972                 return 0;
1973         if (((dirent->name_len&0xFF) == 1) && (dirent->name[0] == '.'))
1974                 return 0;
1975         if (((dirent->name_len&0xFF) == 2) && (dirent->name[0] == '.') &&
1976             (dirent->name[1] == '.')) {
1977                 rds->parent = dirent->inode;
1978                 return 0;
1979         }
1980         rds->empty = 0;
1981         return 0;
1982 }
1983
1984 void do_rmdir(int argc, char *argv[])
1985 {
1986         int retval;
1987         ext2_ino_t inode_num;
1988         struct ext2_inode inode;
1989         struct rd_struct rds;
1990
1991         if (common_args_process(argc, argv, 2, 2, "rmdir",
1992                                 "<filename>", CHECK_FS_RW))
1993                 return;
1994
1995         retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1996         if (retval) {
1997                 com_err(argv[0], retval, "while trying to resolve filename");
1998                 return;
1999         }
2000
2001         if (debugfs_read_inode(inode_num, &inode, argv[0]))
2002                 return;
2003
2004         if (!LINUX_S_ISDIR(inode.i_mode)) {
2005                 com_err(argv[0], 0, "file is not a directory");
2006                 return;
2007         }
2008
2009         rds.parent = 0;
2010         rds.empty = 1;
2011
2012         retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
2013                                     0, rmdir_proc, &rds);
2014         if (retval) {
2015                 com_err(argv[0], retval, "while iterating over directory");
2016                 return;
2017         }
2018         if (rds.empty == 0) {
2019                 com_err(argv[0], 0, "directory not empty");
2020                 return;
2021         }
2022
2023         inode.i_links_count = 0;
2024         if (debugfs_write_inode(inode_num, &inode, argv[0]))
2025                 return;
2026
2027         unlink_file_by_name(argv[1]);
2028         kill_file_by_inode(inode_num);
2029
2030         if (rds.parent) {
2031                 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
2032                         return;
2033                 if (inode.i_links_count > 1)
2034                         inode.i_links_count--;
2035                 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
2036                         return;
2037         }
2038 }
2039 #endif /* READ_ONLY */
2040
2041 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
2042                             char *argv[] EXT2FS_ATTR((unused)))
2043 {
2044         if (current_fs)
2045                 printf("Open mode: read-%s\n",
2046                        current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
2047         printf("Filesystem in use: %s\n",
2048                current_fs ? current_fs->device_name : "--none--");
2049 }
2050
2051 #ifndef READ_ONLY
2052 void do_expand_dir(int argc, char *argv[])
2053 {
2054         ext2_ino_t inode;
2055         int retval;
2056
2057         if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
2058                 return;
2059
2060         retval = ext2fs_expand_dir(current_fs, inode);
2061         if (retval)
2062                 com_err("ext2fs_expand_dir", retval, 0);
2063         return;
2064 }
2065
2066 void do_features(int argc, char *argv[])
2067 {
2068         int     i;
2069
2070         if (check_fs_open(argv[0]))
2071                 return;
2072
2073         if ((argc != 1) && check_fs_read_write(argv[0]))
2074                 return;
2075         for (i=1; i < argc; i++) {
2076                 if (e2p_edit_feature(argv[i],
2077                                      &current_fs->super->s_feature_compat, 0))
2078                         com_err(argv[0], 0, "Unknown feature: %s\n",
2079                                 argv[i]);
2080                 else
2081                         ext2fs_mark_super_dirty(current_fs);
2082         }
2083         print_features(current_fs->super, stdout);
2084 }
2085 #endif /* READ_ONLY */
2086
2087 void do_bmap(int argc, char *argv[])
2088 {
2089         ext2_ino_t      ino;
2090         blk64_t         blk, pblk;
2091         int             err;
2092         errcode_t       errcode;
2093
2094         if (common_args_process(argc, argv, 3, 3, argv[0],
2095                                 "<file> logical_blk", 0))
2096                 return;
2097
2098         ino = string_to_inode(argv[1]);
2099         if (!ino)
2100                 return;
2101         blk = parse_ulong(argv[2], argv[0], "logical_block", &err);
2102
2103         errcode = ext2fs_bmap2(current_fs, ino, 0, 0, 0, blk, 0, &pblk);
2104         if (errcode) {
2105                 com_err(argv[0], errcode,
2106                         "while mapping logical block %llu\n", blk);
2107                 return;
2108         }
2109         printf("%llu\n", pblk);
2110 }
2111
2112 void do_imap(int argc, char *argv[])
2113 {
2114         ext2_ino_t      ino;
2115         unsigned long   group, block, block_nr, offset;
2116
2117         if (common_args_process(argc, argv, 2, 2, argv[0],
2118                                 "<file>", 0))
2119                 return;
2120         ino = string_to_inode(argv[1]);
2121         if (!ino)
2122                 return;
2123
2124         group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
2125         offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
2126                 EXT2_INODE_SIZE(current_fs->super);
2127         block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
2128         if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
2129                 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
2130                         group);
2131                 return;
2132         }
2133         block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
2134                 block;
2135         offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
2136
2137         printf("Inode %d is part of block group %lu\n"
2138                "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
2139                block_nr, offset);
2140
2141 }
2142
2143 #ifndef READ_ONLY
2144 void do_set_current_time(int argc, char *argv[])
2145 {
2146         time_t now;
2147
2148         if (common_args_process(argc, argv, 2, 2, argv[0],
2149                                 "<time>", 0))
2150                 return;
2151
2152         now = string_to_time(argv[1]);
2153         if (now == ((time_t) -1)) {
2154                 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
2155                         argv[1]);
2156                 return;
2157
2158         } else {
2159                 printf("Setting current time to %s\n", time_to_string(now));
2160                 current_fs->now = now;
2161         }
2162 }
2163 #endif /* READ_ONLY */
2164
2165 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
2166 {
2167         int compat, bit, ret;
2168         unsigned int feature_mask;
2169
2170         if (name) {
2171                 if (feature_type == E2P_FS_FEATURE)
2172                         ret = e2p_string2feature(name, &compat, &feature_mask);
2173                 else
2174                         ret = e2p_jrnl_string2feature(name, &compat,
2175                                                       &feature_mask);
2176                 if (ret)
2177                         return ret;
2178
2179                 if (!(supp[compat] & feature_mask))
2180                         return 1;
2181         } else {
2182                 for (compat = 0; compat < 3; compat++) {
2183                         for (bit = 0, feature_mask = 1; bit < 32;
2184                              bit++, feature_mask <<= 1) {
2185                                 if (supp[compat] & feature_mask) {
2186                                         if (feature_type == E2P_FS_FEATURE)
2187                                                 fprintf(stdout, " %s",
2188                                                 e2p_feature2string(compat,
2189                                                 feature_mask));
2190                                         else
2191                                                 fprintf(stdout, " %s",
2192                                                 e2p_jrnl_feature2string(compat,
2193                                                 feature_mask));
2194                                 }
2195                         }
2196                 }
2197                 fprintf(stdout, "\n");
2198         }
2199
2200         return 0;
2201 }
2202
2203 void do_supported_features(int argc, char *argv[])
2204 {
2205         int     ret;
2206         __u32   supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2207                             EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2208                             EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2209         __u32   jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES,
2210                                  JFS_KNOWN_INCOMPAT_FEATURES,
2211                                  JFS_KNOWN_ROCOMPAT_FEATURES };
2212
2213         if (argc > 1) {
2214                 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2215                 if (ret) {
2216                         ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2217                                                 argv[1]);
2218                 }
2219                 if (ret)
2220                         com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2221                 else
2222                         fprintf(stdout, "Supported feature: %s\n", argv[1]);
2223         } else {
2224                 fprintf(stdout, "Supported features:");
2225                 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2226                 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2227         }
2228 }
2229
2230 #ifndef READ_ONLY
2231 void do_punch(int argc, char *argv[])
2232 {
2233         ext2_ino_t      ino;
2234         blk64_t         start, end;
2235         int             err;
2236         errcode_t       errcode;
2237
2238         if (common_args_process(argc, argv, 3, 4, argv[0],
2239                                 "<file> start_blk [end_blk]",
2240                                 CHECK_FS_RW | CHECK_FS_BITMAPS))
2241                 return;
2242
2243         ino = string_to_inode(argv[1]);
2244         if (!ino)
2245                 return;
2246         start = parse_ulong(argv[2], argv[0], "logical_block", &err);
2247         if (argc == 4)
2248                 end = parse_ulong(argv[3], argv[0], "logical_block", &err);
2249         else
2250                 end = ~0;
2251
2252         errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
2253
2254         if (errcode) {
2255                 com_err(argv[0], errcode,
2256                         "while truncating inode %u from %llu to %llu\n", ino,
2257                         (unsigned long long) start, (unsigned long long) end);
2258                 return;
2259         }
2260 }
2261 #endif /* READ_ONLY */
2262
2263 void do_symlink(int argc, char *argv[])
2264 {
2265         char            *cp;
2266         ext2_ino_t      parent;
2267         char            *name, *target;
2268         errcode_t       retval;
2269
2270         if (common_args_process(argc, argv, 3, 3, "symlink",
2271                                 "<filename> <target>", CHECK_FS_RW))
2272                 return;
2273
2274         cp = strrchr(argv[1], '/');
2275         if (cp) {
2276                 *cp = 0;
2277                 parent = string_to_inode(argv[1]);
2278                 if (!parent) {
2279                         com_err(argv[1], ENOENT, 0);
2280                         return;
2281                 }
2282                 name = cp+1;
2283         } else {
2284                 parent = cwd;
2285                 name = argv[1];
2286         }
2287         target = argv[2];
2288
2289 try_again:
2290         retval = ext2fs_symlink(current_fs, parent, 0, name, target);
2291         if (retval == EXT2_ET_DIR_NO_SPACE) {
2292                 retval = ext2fs_expand_dir(current_fs, parent);
2293                 if (retval) {
2294                         com_err(argv[0], retval, "while expanding directory");
2295                         return;
2296                 }
2297                 goto try_again;
2298         }
2299         if (retval) {
2300                 com_err("ext2fs_symlink", retval, 0);
2301                 return;
2302         }
2303
2304 }
2305
2306 void do_dump_mmp(int argc EXT2FS_ATTR((unused)), char *argv[])
2307 {
2308         struct ext2_super_block *sb;
2309         struct mmp_struct *mmp_s;
2310         time_t t;
2311         errcode_t retval = 0;
2312
2313         if (check_fs_open(argv[0]))
2314                 return;
2315
2316         sb  = current_fs->super;
2317
2318         if (current_fs->mmp_buf == NULL) {
2319                 retval = ext2fs_get_mem(current_fs->blocksize,
2320                                         &current_fs->mmp_buf);
2321                 if (retval) {
2322                         com_err(argv[0], retval, "allocating MMP buffer.\n");
2323                         return;
2324                 }
2325         }
2326
2327         mmp_s = current_fs->mmp_buf;
2328
2329         retval = ext2fs_mmp_read(current_fs, current_fs->super->s_mmp_block,
2330                                  current_fs->mmp_buf);
2331         if (retval) {
2332                 com_err(argv[0], retval, "reading MMP block.\n");
2333                 return;
2334         }
2335
2336         t = mmp_s->mmp_time;
2337         fprintf(stdout, "block_number: %llu\n", current_fs->super->s_mmp_block);
2338         fprintf(stdout, "update_interval: %d\n",
2339                 current_fs->super->s_mmp_update_interval);
2340         fprintf(stdout, "check_interval: %d\n", mmp_s->mmp_check_interval);
2341         fprintf(stdout, "sequence: %08x\n", mmp_s->mmp_seq);
2342         fprintf(stdout, "time: %lld -- %s", mmp_s->mmp_time, ctime(&t));
2343         fprintf(stdout, "node_name: %s\n", mmp_s->mmp_nodename);
2344         fprintf(stdout, "device_name: %s\n", mmp_s->mmp_bdevname);
2345         fprintf(stdout, "magic: 0x%x\n", mmp_s->mmp_magic);
2346 }
2347
2348 static int source_file(const char *cmd_file, int ss_idx)
2349 {
2350         FILE            *f;
2351         char            buf[BUFSIZ];
2352         char            *cp;
2353         int             exit_status = 0;
2354         int             retval;
2355
2356         if (strcmp(cmd_file, "-") == 0)
2357                 f = stdin;
2358         else {
2359                 f = fopen(cmd_file, "r");
2360                 if (!f) {
2361                         perror(cmd_file);
2362                         exit(1);
2363                 }
2364         }
2365         fflush(stdout);
2366         fflush(stderr);
2367         setbuf(stdout, NULL);
2368         setbuf(stderr, NULL);
2369         while (!feof(f)) {
2370                 if (fgets(buf, sizeof(buf), f) == NULL)
2371                         break;
2372                 cp = strchr(buf, '\n');
2373                 if (cp)
2374                         *cp = 0;
2375                 cp = strchr(buf, '\r');
2376                 if (cp)
2377                         *cp = 0;
2378                 printf("debugfs: %s\n", buf);
2379                 retval = ss_execute_line(ss_idx, buf);
2380                 if (retval) {
2381                         ss_perror(ss_idx, retval, buf);
2382                         exit_status++;
2383                 }
2384         }
2385         if (f != stdin)
2386                 fclose(f);
2387         return exit_status;
2388 }
2389
2390 int main(int argc, char **argv)
2391 {
2392         int             retval;
2393         const char      *usage =
2394                 "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] "
2395                 "[-R request] [-V] ["
2396 #ifndef READ_ONLY
2397                 "[-w] "
2398 #endif
2399                 "[-c] device]";
2400         int             c;
2401         int             open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
2402         char            *request = 0;
2403         int             exit_status = 0;
2404         char            *cmd_file = 0;
2405         blk64_t         superblock = 0;
2406         blk64_t         blocksize = 0;
2407         int             catastrophic = 0;
2408         char            *data_filename = 0;
2409 #ifdef READ_ONLY
2410         const char      *opt_string = "icR:f:b:s:Vd:D";
2411 #else
2412         const char      *opt_string = "iwcR:f:b:s:Vd:D";
2413 #endif
2414
2415         if (debug_prog_name == 0)
2416 #ifdef READ_ONLY
2417                 debug_prog_name = "rdebugfs";
2418 #else
2419                 debug_prog_name = "debugfs";
2420 #endif
2421         add_error_table(&et_ext2_error_table);
2422         fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2423                  E2FSPROGS_VERSION, E2FSPROGS_DATE);
2424
2425         while ((c = getopt (argc, argv, opt_string)) != EOF) {
2426                 switch (c) {
2427                 case 'R':
2428                         request = optarg;
2429                         break;
2430                 case 'f':
2431                         cmd_file = optarg;
2432                         break;
2433                 case 'd':
2434                         data_filename = optarg;
2435                         break;
2436                 case 'i':
2437                         open_flags |= EXT2_FLAG_IMAGE_FILE;
2438                         break;
2439 #ifndef READ_ONLY
2440                 case 'w':
2441                         open_flags |= EXT2_FLAG_RW;
2442                         break;
2443 #endif
2444                 case 'D':
2445                         open_flags |= EXT2_FLAG_DIRECT_IO;
2446                         break;
2447                 case 'b':
2448                         blocksize = parse_ulong(optarg, argv[0],
2449                                                 "block size", 0);
2450                         break;
2451                 case 's':
2452                         superblock = parse_ulong(optarg, argv[0],
2453                                                  "superblock number", 0);
2454                         break;
2455                 case 'c':
2456                         catastrophic = 1;
2457                         break;
2458                 case 'V':
2459                         /* Print version number and exit */
2460                         fprintf(stderr, "\tUsing %s\n",
2461                                 error_message(EXT2_ET_BASE));
2462                         exit(0);
2463                 default:
2464                         com_err(argv[0], 0, usage, debug_prog_name);
2465                         return 1;
2466                 }
2467         }
2468         if (optind < argc)
2469                 open_filesystem(argv[optind], open_flags,
2470                                 superblock, blocksize, catastrophic,
2471                                 data_filename);
2472
2473         sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2474                                        &debug_cmds, &retval);
2475         if (retval) {
2476                 ss_perror(sci_idx, retval, "creating invocation");
2477                 exit(1);
2478         }
2479         ss_get_readline(sci_idx);
2480
2481         (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
2482         if (retval) {
2483                 ss_perror(sci_idx, retval, "adding standard requests");
2484                 exit (1);
2485         }
2486         if (extra_cmds)
2487                 ss_add_request_table (sci_idx, extra_cmds, 1, &retval);
2488         if (retval) {
2489                 ss_perror(sci_idx, retval, "adding extra requests");
2490                 exit (1);
2491         }
2492         if (request) {
2493                 retval = 0;
2494                 retval = ss_execute_line(sci_idx, request);
2495                 if (retval) {
2496                         ss_perror(sci_idx, retval, request);
2497                         exit_status++;
2498                 }
2499         } else if (cmd_file) {
2500                 exit_status = source_file(cmd_file, sci_idx);
2501         } else {
2502                 ss_listen(sci_idx);
2503         }
2504
2505         ss_delete_invocation(sci_idx);
2506
2507         if (current_fs)
2508                 close_filesystem();
2509
2510         remove_error_table(&et_ext2_error_table);
2511         return exit_status;
2512 }