mirror of https://github.com/vitalif/e2fsprogs
2044 lines
48 KiB
C
2044 lines
48 KiB
C
/*
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* debugfs.c --- a program which allows you to attach an ext2fs
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* filesystem and play with it.
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*
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* Copyright (C) 1993 Theodore Ts'o. This file may be redistributed
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* under the terms of the GNU Public License.
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*
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* Modifications by Robert Sanders <gt8134b@prism.gatech.edu>
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <string.h>
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#include <time.h>
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#ifdef HAVE_GETOPT_H
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#include <getopt.h>
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#else
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extern int optind;
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extern char *optarg;
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#endif
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#ifdef HAVE_ERRNO_H
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#include <errno.h>
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#endif
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#include <fcntl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include "et/com_err.h"
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#include "ss/ss.h"
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#include "debugfs.h"
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#include "uuid/uuid.h"
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#include "e2p/e2p.h"
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#include <ext2fs/ext2_ext_attr.h>
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#include "../version.h"
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#include "jfs_user.h"
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extern ss_request_table debug_cmds;
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ss_request_table *extra_cmds;
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const char *debug_prog_name;
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ext2_filsys current_fs = NULL;
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ext2_ino_t root, cwd;
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static void open_filesystem(char *device, int open_flags, blk_t superblock,
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blk_t blocksize, int catastrophic,
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char *data_filename)
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{
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int retval;
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io_channel data_io = 0;
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if (superblock != 0 && blocksize == 0) {
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com_err(device, 0, "if you specify the superblock, you must also specify the block size");
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current_fs = NULL;
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return;
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}
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if (data_filename) {
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if ((open_flags & EXT2_FLAG_IMAGE_FILE) == 0) {
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com_err(device, 0,
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"The -d option is only valid when reading an e2image file");
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current_fs = NULL;
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return;
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}
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retval = unix_io_manager->open(data_filename, 0, &data_io);
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if (retval) {
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com_err(data_filename, 0, "while opening data source");
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current_fs = NULL;
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return;
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}
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}
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if (catastrophic && (open_flags & EXT2_FLAG_RW)) {
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com_err(device, 0,
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"opening read-only because of catastrophic mode");
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open_flags &= ~EXT2_FLAG_RW;
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}
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retval = ext2fs_open(device, open_flags, superblock, blocksize,
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unix_io_manager, ¤t_fs);
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if (retval) {
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com_err(device, retval, "while opening filesystem");
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current_fs = NULL;
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return;
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}
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if (catastrophic)
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com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps");
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else {
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retval = ext2fs_read_inode_bitmap(current_fs);
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if (retval) {
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com_err(device, retval, "while reading inode bitmap");
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goto errout;
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}
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retval = ext2fs_read_block_bitmap(current_fs);
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if (retval) {
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com_err(device, retval, "while reading block bitmap");
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goto errout;
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}
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}
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if (data_io) {
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retval = ext2fs_set_data_io(current_fs, data_io);
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if (retval) {
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com_err(device, retval,
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"while setting data source");
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goto errout;
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}
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}
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root = cwd = EXT2_ROOT_INO;
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return;
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errout:
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retval = ext2fs_close(current_fs);
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if (retval)
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com_err(device, retval, "while trying to close filesystem");
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current_fs = NULL;
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}
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void do_open_filesys(int argc, char **argv)
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{
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int c, err;
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int catastrophic = 0;
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blk_t superblock = 0;
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blk_t blocksize = 0;
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int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES;
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char *data_filename = 0;
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reset_getopt();
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while ((c = getopt (argc, argv, "iwfecb:s:d:")) != EOF) {
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switch (c) {
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case 'i':
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open_flags |= EXT2_FLAG_IMAGE_FILE;
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break;
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case 'w':
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open_flags |= EXT2_FLAG_RW;
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break;
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case 'f':
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open_flags |= EXT2_FLAG_FORCE;
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break;
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case 'e':
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open_flags |= EXT2_FLAG_EXCLUSIVE;
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break;
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case 'c':
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catastrophic = 1;
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break;
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case 'd':
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data_filename = optarg;
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break;
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case 'b':
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blocksize = parse_ulong(optarg, argv[0],
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"block size", &err);
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if (err)
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return;
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break;
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case 's':
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superblock = parse_ulong(optarg, argv[0],
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"superblock number", &err);
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if (err)
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return;
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break;
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default:
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goto print_usage;
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}
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}
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if (optind != argc-1) {
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goto print_usage;
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}
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if (check_fs_not_open(argv[0]))
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return;
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open_filesystem(argv[optind], open_flags,
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superblock, blocksize, catastrophic,
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data_filename);
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return;
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print_usage:
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fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] "
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"[-c] [-w] <device>\n", argv[0]);
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}
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void do_lcd(int argc, char **argv)
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{
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if (argc != 2) {
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com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>");
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return;
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}
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if (chdir(argv[1]) == -1) {
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com_err(argv[0], errno,
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"while trying to change native directory to %s",
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argv[1]);
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return;
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}
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}
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static void close_filesystem(NOARGS)
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{
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int retval;
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if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
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retval = ext2fs_write_inode_bitmap(current_fs);
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if (retval)
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com_err("ext2fs_write_inode_bitmap", retval, 0);
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}
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if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
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retval = ext2fs_write_block_bitmap(current_fs);
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if (retval)
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com_err("ext2fs_write_block_bitmap", retval, 0);
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}
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retval = ext2fs_close(current_fs);
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if (retval)
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com_err("ext2fs_close", retval, 0);
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current_fs = NULL;
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return;
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}
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void do_close_filesys(int argc, char **argv)
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{
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int c;
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if (check_fs_open(argv[0]))
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return;
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reset_getopt();
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while ((c = getopt (argc, argv, "a")) != EOF) {
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switch (c) {
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case 'a':
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current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
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break;
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default:
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goto print_usage;
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}
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}
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if (argc > optind) {
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print_usage:
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com_err(0, 0, "Usage: close_filesys [-a]");
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return;
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}
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close_filesystem();
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}
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void do_init_filesys(int argc, char **argv)
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{
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struct ext2_super_block param;
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errcode_t retval;
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int err;
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if (common_args_process(argc, argv, 3, 3, "initialize",
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"<device> <blocksize>", CHECK_FS_NOTOPEN))
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return;
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memset(¶m, 0, sizeof(struct ext2_super_block));
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param.s_blocks_count = parse_ulong(argv[2], argv[0],
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"blocks count", &err);
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if (err)
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return;
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retval = ext2fs_initialize(argv[1], 0, ¶m,
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unix_io_manager, ¤t_fs);
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if (retval) {
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com_err(argv[1], retval, "while initializing filesystem");
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current_fs = NULL;
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return;
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}
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root = cwd = EXT2_ROOT_INO;
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return;
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}
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static void print_features(struct ext2_super_block * s, FILE *f)
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{
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int i, j, printed=0;
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__u32 *mask = &s->s_feature_compat, m;
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fputs("Filesystem features:", f);
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for (i=0; i <3; i++,mask++) {
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for (j=0,m=1; j < 32; j++, m<<=1) {
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if (*mask & m) {
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fprintf(f, " %s", e2p_feature2string(i, m));
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printed++;
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}
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}
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}
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if (printed == 0)
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fputs("(none)", f);
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fputs("\n", f);
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}
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static void print_bg_opts(struct ext2_group_desc *gdp, int mask,
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const char *str, int *first, FILE *f)
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{
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if (gdp->bg_flags & mask) {
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if (*first) {
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fputs(" [", f);
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*first = 0;
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} else
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fputs(", ", f);
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fputs(str, f);
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}
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}
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void do_show_super_stats(int argc, char *argv[])
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{
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dgrp_t i;
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FILE *out;
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struct ext2_group_desc *gdp;
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int c, header_only = 0;
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int numdirs = 0, first, gdt_csum;
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reset_getopt();
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while ((c = getopt (argc, argv, "h")) != EOF) {
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switch (c) {
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case 'h':
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header_only++;
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break;
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default:
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goto print_usage;
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}
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}
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if (optind != argc) {
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goto print_usage;
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}
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if (check_fs_open(argv[0]))
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return;
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out = open_pager();
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list_super2(current_fs->super, out);
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for (i=0; i < current_fs->group_desc_count; i++)
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numdirs += current_fs->group_desc[i].bg_used_dirs_count;
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fprintf(out, "Directories: %d\n", numdirs);
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if (header_only) {
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close_pager(out);
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return;
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}
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gdt_csum = EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super,
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EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
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gdp = ¤t_fs->group_desc[0];
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for (i = 0; i < current_fs->group_desc_count; i++, gdp++) {
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fprintf(out, " Group %2d: block bitmap at %u, "
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"inode bitmap at %u, "
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"inode table at %u\n"
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" %d free %s, "
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"%d free %s, "
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"%d used %s%s",
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i, gdp->bg_block_bitmap,
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gdp->bg_inode_bitmap, gdp->bg_inode_table,
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gdp->bg_free_blocks_count,
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gdp->bg_free_blocks_count != 1 ? "blocks" : "block",
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gdp->bg_free_inodes_count,
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gdp->bg_free_inodes_count != 1 ? "inodes" : "inode",
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gdp->bg_used_dirs_count,
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gdp->bg_used_dirs_count != 1 ? "directories"
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: "directory", gdt_csum ? ", " : "\n");
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if (gdt_csum)
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fprintf(out, "%d unused %s\n",
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gdp->bg_itable_unused,
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gdp->bg_itable_unused != 1 ? "inodes":"inode");
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first = 1;
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print_bg_opts(gdp, EXT2_BG_INODE_UNINIT, "Inode not init",
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&first, out);
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print_bg_opts(gdp, EXT2_BG_BLOCK_UNINIT, "Block not init",
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&first, out);
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if (gdt_csum) {
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fprintf(out, "%sChecksum 0x%04x",
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first ? " [":", ", gdp->bg_checksum);
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first = 0;
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}
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if (!first)
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fputs("]\n", out);
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}
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close_pager(out);
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return;
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print_usage:
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fprintf(stderr, "%s: Usage: show_super [-h]\n", argv[0]);
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}
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void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
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char **argv EXT2FS_ATTR((unused)))
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{
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if (check_fs_open(argv[0]))
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return;
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if (check_fs_read_write(argv[0]))
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return;
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if (argv[1] && !strcmp(argv[1], "-clean"))
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current_fs->super->s_state |= EXT2_VALID_FS;
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else
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current_fs->super->s_state &= ~EXT2_VALID_FS;
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ext2fs_mark_super_dirty(current_fs);
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}
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struct list_blocks_struct {
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FILE *f;
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e2_blkcnt_t total;
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blk_t first_block, last_block;
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e2_blkcnt_t first_bcnt, last_bcnt;
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e2_blkcnt_t first;
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};
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static void finish_range(struct list_blocks_struct *lb)
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{
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if (lb->first_block == 0)
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return;
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if (lb->first)
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lb->first = 0;
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else
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fprintf(lb->f, ", ");
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if (lb->first_block == lb->last_block)
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fprintf(lb->f, "(%lld):%u",
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(long long)lb->first_bcnt, lb->first_block);
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else
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fprintf(lb->f, "(%lld-%lld):%u-%u",
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(long long)lb->first_bcnt, (long long)lb->last_bcnt,
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lb->first_block, lb->last_block);
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lb->first_block = 0;
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}
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static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
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blk_t *blocknr, e2_blkcnt_t blockcnt,
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blk_t ref_block EXT2FS_ATTR((unused)),
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int ref_offset EXT2FS_ATTR((unused)),
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void *private)
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{
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struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
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lb->total++;
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if (blockcnt >= 0) {
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/*
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* See if we can add on to the existing range (if it exists)
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*/
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if (lb->first_block &&
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(lb->last_block+1 == *blocknr) &&
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(lb->last_bcnt+1 == blockcnt)) {
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lb->last_block = *blocknr;
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lb->last_bcnt = blockcnt;
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return 0;
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}
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/*
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* Start a new range.
|
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*/
|
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finish_range(lb);
|
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lb->first_block = lb->last_block = *blocknr;
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lb->first_bcnt = lb->last_bcnt = blockcnt;
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return 0;
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}
|
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/*
|
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* Not a normal block. Always force a new range.
|
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*/
|
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finish_range(lb);
|
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if (lb->first)
|
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lb->first = 0;
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else
|
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fprintf(lb->f, ", ");
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if (blockcnt == -1)
|
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fprintf(lb->f, "(IND):%u", *blocknr);
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else if (blockcnt == -2)
|
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fprintf(lb->f, "(DIND):%u", *blocknr);
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else if (blockcnt == -3)
|
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fprintf(lb->f, "(TIND):%u", *blocknr);
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return 0;
|
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}
|
|
|
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static void dump_xattr_string(FILE *out, const char *str, int len)
|
|
{
|
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int printable = 0;
|
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int i;
|
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|
|
/* check: is string "printable enough?" */
|
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for (i = 0; i < len; i++)
|
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if (isprint(str[i]))
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printable++;
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|
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if (printable <= len*7/8)
|
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printable = 0;
|
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|
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for (i = 0; i < len; i++)
|
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if (printable)
|
|
fprintf(out, isprint(str[i]) ? "%c" : "\\%03o",
|
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(unsigned char)str[i]);
|
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else
|
|
fprintf(out, "%02x ", (unsigned char)str[i]);
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}
|
|
|
|
static void internal_dump_inode_extra(FILE *out,
|
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const char *prefix EXT2FS_ATTR((unused)),
|
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ext2_ino_t inode_num EXT2FS_ATTR((unused)),
|
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struct ext2_inode_large *inode)
|
|
{
|
|
struct ext2_ext_attr_entry *entry;
|
|
__u32 *magic;
|
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char *start, *end;
|
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unsigned int storage_size;
|
|
|
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fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
|
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if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
|
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EXT2_GOOD_OLD_INODE_SIZE) {
|
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fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
|
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inode->i_extra_isize);
|
|
return;
|
|
}
|
|
storage_size = EXT2_INODE_SIZE(current_fs->super) -
|
|
EXT2_GOOD_OLD_INODE_SIZE -
|
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inode->i_extra_isize;
|
|
magic = (__u32 *)((char *)inode + EXT2_GOOD_OLD_INODE_SIZE +
|
|
inode->i_extra_isize);
|
|
if (*magic == EXT2_EXT_ATTR_MAGIC) {
|
|
fprintf(out, "Extended attributes stored in inode body: \n");
|
|
end = (char *) inode + EXT2_INODE_SIZE(current_fs->super);
|
|
start = (char *) magic + sizeof(__u32);
|
|
entry = (struct ext2_ext_attr_entry *) start;
|
|
while (!EXT2_EXT_IS_LAST_ENTRY(entry)) {
|
|
struct ext2_ext_attr_entry *next =
|
|
EXT2_EXT_ATTR_NEXT(entry);
|
|
if (entry->e_value_size > storage_size ||
|
|
(char *) next >= end) {
|
|
fprintf(out, "invalid EA entry in inode\n");
|
|
return;
|
|
}
|
|
fprintf(out, " ");
|
|
dump_xattr_string(out, EXT2_EXT_ATTR_NAME(entry),
|
|
entry->e_name_len);
|
|
fprintf(out, " = \"");
|
|
dump_xattr_string(out, start + entry->e_value_offs,
|
|
entry->e_value_size);
|
|
fprintf(out, "\" (%u)\n", entry->e_value_size);
|
|
entry = next;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
|
|
{
|
|
struct list_blocks_struct lb;
|
|
|
|
fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
|
|
lb.total = 0;
|
|
lb.first_block = 0;
|
|
lb.f = f;
|
|
lb.first = 1;
|
|
ext2fs_block_iterate2(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
|
|
list_blocks_proc, (void *)&lb);
|
|
finish_range(&lb);
|
|
if (lb.total)
|
|
fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
|
|
fprintf(f,"\n");
|
|
}
|
|
|
|
|
|
void internal_dump_inode(FILE *out, const char *prefix,
|
|
ext2_ino_t inode_num, struct ext2_inode *inode,
|
|
int do_dump_blocks)
|
|
{
|
|
const char *i_type;
|
|
char frag, fsize;
|
|
int os = current_fs->super->s_creator_os;
|
|
struct ext2_inode_large *large_inode;
|
|
int is_large_inode = 0;
|
|
|
|
if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
|
|
is_large_inode = 1;
|
|
large_inode = (struct ext2_inode_large *) inode;
|
|
|
|
if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
|
|
else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
|
|
else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
|
|
else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
|
|
else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
|
|
else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
|
|
else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
|
|
else i_type = "bad type";
|
|
fprintf(out, "%sInode: %u Type: %s ", prefix, inode_num, i_type);
|
|
fprintf(out, "%sMode: %04o Flags: 0x%x\n",
|
|
prefix, inode->i_mode & 0777, inode->i_flags);
|
|
if (is_large_inode && large_inode->i_extra_isize >= 24) {
|
|
fprintf(out, "%sGeneration: %u Version: 0x%08x:%08x\n",
|
|
prefix, inode->i_generation, large_inode->i_version_hi,
|
|
inode->osd1.linux1.l_i_version);
|
|
} else {
|
|
fprintf(out, "%sGeneration: %u Version: 0x%08x\n", prefix,
|
|
inode->i_generation, inode->osd1.linux1.l_i_version);
|
|
}
|
|
fprintf(out, "%sUser: %5d Group: %5d Size: ",
|
|
prefix, inode_uid(*inode), inode_gid(*inode));
|
|
if (LINUX_S_ISREG(inode->i_mode)) {
|
|
unsigned long long i_size = (inode->i_size |
|
|
((unsigned long long)inode->i_size_high << 32));
|
|
|
|
fprintf(out, "%llu\n", i_size);
|
|
} else
|
|
fprintf(out, "%d\n", inode->i_size);
|
|
if (os == EXT2_OS_HURD)
|
|
fprintf(out,
|
|
"%sFile ACL: %d Directory ACL: %d Translator: %d\n",
|
|
prefix,
|
|
inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0,
|
|
inode->osd1.hurd1.h_i_translator);
|
|
else
|
|
fprintf(out, "%sFile ACL: %llu Directory ACL: %d\n",
|
|
prefix,
|
|
inode->i_file_acl | ((long long)
|
|
(inode->osd2.linux2.l_i_file_acl_high) << 32),
|
|
LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0);
|
|
if (os == EXT2_OS_LINUX)
|
|
fprintf(out, "%sLinks: %d Blockcount: %llu\n",
|
|
prefix, inode->i_links_count,
|
|
(((unsigned long long)
|
|
inode->osd2.linux2.l_i_blocks_hi << 32)) +
|
|
inode->i_blocks);
|
|
else
|
|
fprintf(out, "%sLinks: %d Blockcount: %u\n",
|
|
prefix, inode->i_links_count, inode->i_blocks);
|
|
switch (os) {
|
|
case EXT2_OS_HURD:
|
|
frag = inode->osd2.hurd2.h_i_frag;
|
|
fsize = inode->osd2.hurd2.h_i_fsize;
|
|
break;
|
|
default:
|
|
frag = fsize = 0;
|
|
}
|
|
fprintf(out, "%sFragment: Address: %d Number: %d Size: %d\n",
|
|
prefix, inode->i_faddr, frag, fsize);
|
|
if (is_large_inode && large_inode->i_extra_isize >= 24) {
|
|
fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
|
|
inode->i_ctime, large_inode->i_ctime_extra,
|
|
time_to_string(inode->i_ctime));
|
|
fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
|
|
inode->i_atime, large_inode->i_atime_extra,
|
|
time_to_string(inode->i_atime));
|
|
fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
|
|
inode->i_mtime, large_inode->i_mtime_extra,
|
|
time_to_string(inode->i_mtime));
|
|
fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
|
|
large_inode->i_crtime, large_inode->i_crtime_extra,
|
|
time_to_string(large_inode->i_crtime));
|
|
} else {
|
|
fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
|
|
time_to_string(inode->i_ctime));
|
|
fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
|
|
time_to_string(inode->i_atime));
|
|
fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
|
|
time_to_string(inode->i_mtime));
|
|
}
|
|
if (inode->i_dtime)
|
|
fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime,
|
|
time_to_string(inode->i_dtime));
|
|
if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
|
|
internal_dump_inode_extra(out, prefix, inode_num,
|
|
(struct ext2_inode_large *) inode);
|
|
if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_inode_data_blocks(current_fs,inode) == 0)
|
|
fprintf(out, "%sFast_link_dest: %.*s\n", prefix,
|
|
(int) inode->i_size, (char *)inode->i_block);
|
|
else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
|
|
int major, minor;
|
|
const char *devnote;
|
|
|
|
if (inode->i_block[0]) {
|
|
major = (inode->i_block[0] >> 8) & 255;
|
|
minor = inode->i_block[0] & 255;
|
|
devnote = "";
|
|
} else {
|
|
major = (inode->i_block[1] & 0xfff00) >> 8;
|
|
minor = ((inode->i_block[1] & 0xff) |
|
|
((inode->i_block[1] >> 12) & 0xfff00));
|
|
devnote = "(New-style) ";
|
|
}
|
|
fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
|
|
devnote, major, minor, major, minor);
|
|
}
|
|
else if (do_dump_blocks)
|
|
dump_blocks(out, prefix, inode_num);
|
|
}
|
|
|
|
static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
|
|
{
|
|
FILE *out;
|
|
|
|
out = open_pager();
|
|
internal_dump_inode(out, "", inode_num, inode, 1);
|
|
close_pager(out);
|
|
}
|
|
|
|
void do_stat(int argc, char *argv[])
|
|
{
|
|
ext2_ino_t inode;
|
|
struct ext2_inode * inode_buf;
|
|
|
|
if (check_fs_open(argv[0]))
|
|
return;
|
|
|
|
inode_buf = (struct ext2_inode *)
|
|
malloc(EXT2_INODE_SIZE(current_fs->super));
|
|
if (!inode_buf) {
|
|
fprintf(stderr, "do_stat: can't allocate buffer\n");
|
|
return;
|
|
}
|
|
|
|
if (common_inode_args_process(argc, argv, &inode, 0)) {
|
|
free(inode_buf);
|
|
return;
|
|
}
|
|
|
|
if (debugfs_read_inode_full(inode, inode_buf, argv[0],
|
|
EXT2_INODE_SIZE(current_fs->super))) {
|
|
free(inode_buf);
|
|
return;
|
|
}
|
|
|
|
dump_inode(inode, inode_buf);
|
|
free(inode_buf);
|
|
return;
|
|
}
|
|
|
|
void do_chroot(int argc, char *argv[])
|
|
{
|
|
ext2_ino_t inode;
|
|
int retval;
|
|
|
|
if (common_inode_args_process(argc, argv, &inode, 0))
|
|
return;
|
|
|
|
retval = ext2fs_check_directory(current_fs, inode);
|
|
if (retval) {
|
|
com_err(argv[1], retval, 0);
|
|
return;
|
|
}
|
|
root = inode;
|
|
}
|
|
|
|
void do_clri(int argc, char *argv[])
|
|
{
|
|
ext2_ino_t inode;
|
|
struct ext2_inode inode_buf;
|
|
|
|
if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
|
|
return;
|
|
|
|
if (debugfs_read_inode(inode, &inode_buf, argv[0]))
|
|
return;
|
|
memset(&inode_buf, 0, sizeof(inode_buf));
|
|
if (debugfs_write_inode(inode, &inode_buf, argv[0]))
|
|
return;
|
|
}
|
|
|
|
void do_freei(int argc, char *argv[])
|
|
{
|
|
ext2_ino_t inode;
|
|
|
|
if (common_inode_args_process(argc, argv, &inode,
|
|
CHECK_FS_RW | CHECK_FS_BITMAPS))
|
|
return;
|
|
|
|
if (!ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
|
|
com_err(argv[0], 0, "Warning: inode already clear");
|
|
ext2fs_unmark_inode_bitmap(current_fs->inode_map,inode);
|
|
ext2fs_mark_ib_dirty(current_fs);
|
|
}
|
|
|
|
void do_seti(int argc, char *argv[])
|
|
{
|
|
ext2_ino_t inode;
|
|
|
|
if (common_inode_args_process(argc, argv, &inode,
|
|
CHECK_FS_RW | CHECK_FS_BITMAPS))
|
|
return;
|
|
|
|
if (ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
|
|
com_err(argv[0], 0, "Warning: inode already set");
|
|
ext2fs_mark_inode_bitmap(current_fs->inode_map,inode);
|
|
ext2fs_mark_ib_dirty(current_fs);
|
|
}
|
|
|
|
void do_testi(int argc, char *argv[])
|
|
{
|
|
ext2_ino_t inode;
|
|
|
|
if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
|
|
return;
|
|
|
|
if (ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
|
|
printf("Inode %u is marked in use\n", inode);
|
|
else
|
|
printf("Inode %u is not in use\n", inode);
|
|
}
|
|
|
|
void do_freeb(int argc, char *argv[])
|
|
{
|
|
blk_t block;
|
|
blk_t count = 1;
|
|
|
|
if (common_block_args_process(argc, argv, &block, &count))
|
|
return;
|
|
if (check_fs_read_write(argv[0]))
|
|
return;
|
|
while (count-- > 0) {
|
|
if (!ext2fs_test_block_bitmap(current_fs->block_map,block))
|
|
com_err(argv[0], 0, "Warning: block %u already clear",
|
|
block);
|
|
ext2fs_unmark_block_bitmap(current_fs->block_map,block);
|
|
block++;
|
|
}
|
|
ext2fs_mark_bb_dirty(current_fs);
|
|
}
|
|
|
|
void do_setb(int argc, char *argv[])
|
|
{
|
|
blk_t block;
|
|
blk_t count = 1;
|
|
|
|
if (common_block_args_process(argc, argv, &block, &count))
|
|
return;
|
|
if (check_fs_read_write(argv[0]))
|
|
return;
|
|
while (count-- > 0) {
|
|
if (ext2fs_test_block_bitmap(current_fs->block_map,block))
|
|
com_err(argv[0], 0, "Warning: block %u already set",
|
|
block);
|
|
ext2fs_mark_block_bitmap(current_fs->block_map,block);
|
|
block++;
|
|
}
|
|
ext2fs_mark_bb_dirty(current_fs);
|
|
}
|
|
|
|
void do_testb(int argc, char *argv[])
|
|
{
|
|
blk_t block;
|
|
blk_t count = 1;
|
|
|
|
if (common_block_args_process(argc, argv, &block, &count))
|
|
return;
|
|
while (count-- > 0) {
|
|
if (ext2fs_test_block_bitmap(current_fs->block_map,block))
|
|
printf("Block %u marked in use\n", block);
|
|
else
|
|
printf("Block %u not in use\n", block);
|
|
block++;
|
|
}
|
|
}
|
|
|
|
static void modify_u8(char *com, const char *prompt,
|
|
const char *format, __u8 *val)
|
|
{
|
|
char buf[200];
|
|
unsigned long v;
|
|
char *tmp;
|
|
|
|
sprintf(buf, format, *val);
|
|
printf("%30s [%s] ", prompt, buf);
|
|
if (!fgets(buf, sizeof(buf), stdin))
|
|
return;
|
|
if (buf[strlen (buf) - 1] == '\n')
|
|
buf[strlen (buf) - 1] = '\0';
|
|
if (!buf[0])
|
|
return;
|
|
v = strtoul(buf, &tmp, 0);
|
|
if (*tmp)
|
|
com_err(com, 0, "Bad value - %s", buf);
|
|
else
|
|
*val = v;
|
|
}
|
|
|
|
static void modify_u16(char *com, const char *prompt,
|
|
const char *format, __u16 *val)
|
|
{
|
|
char buf[200];
|
|
unsigned long v;
|
|
char *tmp;
|
|
|
|
sprintf(buf, format, *val);
|
|
printf("%30s [%s] ", prompt, buf);
|
|
if (!fgets(buf, sizeof(buf), stdin))
|
|
return;
|
|
if (buf[strlen (buf) - 1] == '\n')
|
|
buf[strlen (buf) - 1] = '\0';
|
|
if (!buf[0])
|
|
return;
|
|
v = strtoul(buf, &tmp, 0);
|
|
if (*tmp)
|
|
com_err(com, 0, "Bad value - %s", buf);
|
|
else
|
|
*val = v;
|
|
}
|
|
|
|
static void modify_u32(char *com, const char *prompt,
|
|
const char *format, __u32 *val)
|
|
{
|
|
char buf[200];
|
|
unsigned long v;
|
|
char *tmp;
|
|
|
|
sprintf(buf, format, *val);
|
|
printf("%30s [%s] ", prompt, buf);
|
|
if (!fgets(buf, sizeof(buf), stdin))
|
|
return;
|
|
if (buf[strlen (buf) - 1] == '\n')
|
|
buf[strlen (buf) - 1] = '\0';
|
|
if (!buf[0])
|
|
return;
|
|
v = strtoul(buf, &tmp, 0);
|
|
if (*tmp)
|
|
com_err(com, 0, "Bad value - %s", buf);
|
|
else
|
|
*val = v;
|
|
}
|
|
|
|
|
|
void do_modify_inode(int argc, char *argv[])
|
|
{
|
|
struct ext2_inode inode;
|
|
ext2_ino_t inode_num;
|
|
int i;
|
|
unsigned char *frag, *fsize;
|
|
char buf[80];
|
|
int os;
|
|
const char *hex_format = "0x%x";
|
|
const char *octal_format = "0%o";
|
|
const char *decimal_format = "%d";
|
|
const char *unsignedlong_format = "%lu";
|
|
|
|
if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
|
|
return;
|
|
|
|
os = current_fs->super->s_creator_os;
|
|
|
|
if (debugfs_read_inode(inode_num, &inode, argv[1]))
|
|
return;
|
|
|
|
modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
|
|
modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
|
|
modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
|
|
modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
|
|
modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
|
|
modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
|
|
modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
|
|
modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
|
|
modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
|
|
if (os == EXT2_OS_LINUX)
|
|
modify_u16(argv[0], "Block count high", unsignedlong_format,
|
|
&inode.osd2.linux2.l_i_blocks_hi);
|
|
modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
|
|
modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
|
|
modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
|
|
#if 0
|
|
modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
|
|
#endif
|
|
modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
|
|
if (LINUX_S_ISDIR(inode.i_mode))
|
|
modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
|
|
else
|
|
modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
|
|
|
|
if (os == EXT2_OS_HURD)
|
|
modify_u32(argv[0], "Translator Block",
|
|
decimal_format, &inode.osd1.hurd1.h_i_translator);
|
|
|
|
modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
|
|
switch (os) {
|
|
case EXT2_OS_HURD:
|
|
frag = &inode.osd2.hurd2.h_i_frag;
|
|
fsize = &inode.osd2.hurd2.h_i_fsize;
|
|
break;
|
|
default:
|
|
frag = fsize = 0;
|
|
}
|
|
if (frag)
|
|
modify_u8(argv[0], "Fragment number", decimal_format, frag);
|
|
if (fsize)
|
|
modify_u8(argv[0], "Fragment size", decimal_format, fsize);
|
|
|
|
for (i=0; i < EXT2_NDIR_BLOCKS; i++) {
|
|
sprintf(buf, "Direct Block #%d", i);
|
|
modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
|
|
}
|
|
modify_u32(argv[0], "Indirect Block", decimal_format,
|
|
&inode.i_block[EXT2_IND_BLOCK]);
|
|
modify_u32(argv[0], "Double Indirect Block", decimal_format,
|
|
&inode.i_block[EXT2_DIND_BLOCK]);
|
|
modify_u32(argv[0], "Triple Indirect Block", decimal_format,
|
|
&inode.i_block[EXT2_TIND_BLOCK]);
|
|
if (debugfs_write_inode(inode_num, &inode, argv[1]))
|
|
return;
|
|
}
|
|
|
|
void do_change_working_dir(int argc, char *argv[])
|
|
{
|
|
ext2_ino_t inode;
|
|
int retval;
|
|
|
|
if (common_inode_args_process(argc, argv, &inode, 0))
|
|
return;
|
|
|
|
retval = ext2fs_check_directory(current_fs, inode);
|
|
if (retval) {
|
|
com_err(argv[1], retval, 0);
|
|
return;
|
|
}
|
|
cwd = inode;
|
|
return;
|
|
}
|
|
|
|
void do_print_working_directory(int argc, char *argv[])
|
|
{
|
|
int retval;
|
|
char *pathname = NULL;
|
|
|
|
if (common_args_process(argc, argv, 1, 1,
|
|
"print_working_directory", "", 0))
|
|
return;
|
|
|
|
retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
|
|
if (retval) {
|
|
com_err(argv[0], retval,
|
|
"while trying to get pathname of cwd");
|
|
}
|
|
printf("[pwd] INODE: %6u PATH: %s\n",
|
|
cwd, pathname ? pathname : "NULL");
|
|
if (pathname) {
|
|
free(pathname);
|
|
pathname = NULL;
|
|
}
|
|
retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
|
|
if (retval) {
|
|
com_err(argv[0], retval,
|
|
"while trying to get pathname of root");
|
|
}
|
|
printf("[root] INODE: %6u PATH: %s\n",
|
|
root, pathname ? pathname : "NULL");
|
|
if (pathname) {
|
|
free(pathname);
|
|
pathname = NULL;
|
|
}
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Given a mode, return the ext2 file type
|
|
*/
|
|
static int ext2_file_type(unsigned int mode)
|
|
{
|
|
if (LINUX_S_ISREG(mode))
|
|
return EXT2_FT_REG_FILE;
|
|
|
|
if (LINUX_S_ISDIR(mode))
|
|
return EXT2_FT_DIR;
|
|
|
|
if (LINUX_S_ISCHR(mode))
|
|
return EXT2_FT_CHRDEV;
|
|
|
|
if (LINUX_S_ISBLK(mode))
|
|
return EXT2_FT_BLKDEV;
|
|
|
|
if (LINUX_S_ISLNK(mode))
|
|
return EXT2_FT_SYMLINK;
|
|
|
|
if (LINUX_S_ISFIFO(mode))
|
|
return EXT2_FT_FIFO;
|
|
|
|
if (LINUX_S_ISSOCK(mode))
|
|
return EXT2_FT_SOCK;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void make_link(char *sourcename, char *destname)
|
|
{
|
|
ext2_ino_t ino;
|
|
struct ext2_inode inode;
|
|
int retval;
|
|
ext2_ino_t dir;
|
|
char *dest, *cp, *base_name;
|
|
|
|
/*
|
|
* Get the source inode
|
|
*/
|
|
ino = string_to_inode(sourcename);
|
|
if (!ino)
|
|
return;
|
|
base_name = strrchr(sourcename, '/');
|
|
if (base_name)
|
|
base_name++;
|
|
else
|
|
base_name = sourcename;
|
|
/*
|
|
* Figure out the destination. First see if it exists and is
|
|
* a directory.
|
|
*/
|
|
if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
|
|
dest = base_name;
|
|
else {
|
|
/*
|
|
* OK, it doesn't exist. See if it is
|
|
* '<dir>/basename' or 'basename'
|
|
*/
|
|
cp = strrchr(destname, '/');
|
|
if (cp) {
|
|
*cp = 0;
|
|
dir = string_to_inode(destname);
|
|
if (!dir)
|
|
return;
|
|
dest = cp+1;
|
|
} else {
|
|
dir = cwd;
|
|
dest = destname;
|
|
}
|
|
}
|
|
|
|
if (debugfs_read_inode(ino, &inode, sourcename))
|
|
return;
|
|
|
|
retval = ext2fs_link(current_fs, dir, dest, ino,
|
|
ext2_file_type(inode.i_mode));
|
|
if (retval)
|
|
com_err("make_link", retval, 0);
|
|
return;
|
|
}
|
|
|
|
|
|
void do_link(int argc, char *argv[])
|
|
{
|
|
if (common_args_process(argc, argv, 3, 3, "link",
|
|
"<source file> <dest_name>", CHECK_FS_RW))
|
|
return;
|
|
|
|
make_link(argv[1], argv[2]);
|
|
}
|
|
|
|
static int mark_blocks_proc(ext2_filsys fs, blk_t *blocknr,
|
|
int blockcnt EXT2FS_ATTR((unused)),
|
|
void *private EXT2FS_ATTR((unused)))
|
|
{
|
|
blk_t block;
|
|
|
|
block = *blocknr;
|
|
ext2fs_block_alloc_stats(fs, block, +1);
|
|
return 0;
|
|
}
|
|
|
|
void do_undel(int argc, char *argv[])
|
|
{
|
|
ext2_ino_t ino;
|
|
struct ext2_inode inode;
|
|
|
|
if (common_args_process(argc, argv, 2, 3, "undelete",
|
|
"<inode_num> [dest_name]",
|
|
CHECK_FS_RW | CHECK_FS_BITMAPS))
|
|
return;
|
|
|
|
ino = string_to_inode(argv[1]);
|
|
if (!ino)
|
|
return;
|
|
|
|
if (debugfs_read_inode(ino, &inode, argv[1]))
|
|
return;
|
|
|
|
if (ext2fs_test_inode_bitmap(current_fs->inode_map, ino)) {
|
|
com_err(argv[1], 0, "Inode is not marked as deleted");
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* XXX this function doesn't handle changing the links count on the
|
|
* parent directory when undeleting a directory.
|
|
*/
|
|
inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
|
|
inode.i_dtime = 0;
|
|
|
|
if (debugfs_write_inode(ino, &inode, argv[0]))
|
|
return;
|
|
|
|
ext2fs_block_iterate(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
|
|
mark_blocks_proc, NULL);
|
|
|
|
ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
|
|
|
|
if (argc > 2)
|
|
make_link(argv[1], argv[2]);
|
|
}
|
|
|
|
static void unlink_file_by_name(char *filename)
|
|
{
|
|
int retval;
|
|
ext2_ino_t dir;
|
|
char *base_name;
|
|
|
|
base_name = strrchr(filename, '/');
|
|
if (base_name) {
|
|
*base_name++ = '\0';
|
|
dir = string_to_inode(filename);
|
|
if (!dir)
|
|
return;
|
|
} else {
|
|
dir = cwd;
|
|
base_name = filename;
|
|
}
|
|
retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
|
|
if (retval)
|
|
com_err("unlink_file_by_name", retval, 0);
|
|
return;
|
|
}
|
|
|
|
void do_unlink(int argc, char *argv[])
|
|
{
|
|
if (common_args_process(argc, argv, 2, 2, "link",
|
|
"<pathname>", CHECK_FS_RW))
|
|
return;
|
|
|
|
unlink_file_by_name(argv[1]);
|
|
}
|
|
|
|
void do_find_free_block(int argc, char *argv[])
|
|
{
|
|
blk_t free_blk, goal, first_free = 0;
|
|
int count;
|
|
errcode_t retval;
|
|
char *tmp;
|
|
|
|
if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
|
|
com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
|
|
return;
|
|
}
|
|
if (check_fs_open(argv[0]))
|
|
return;
|
|
|
|
if (argc > 1) {
|
|
count = strtol(argv[1],&tmp,0);
|
|
if (*tmp) {
|
|
com_err(argv[0], 0, "Bad count - %s", argv[1]);
|
|
return;
|
|
}
|
|
} else
|
|
count = 1;
|
|
|
|
if (argc > 2) {
|
|
goal = strtol(argv[2], &tmp, 0);
|
|
if (*tmp) {
|
|
com_err(argv[0], 0, "Bad goal - %s", argv[1]);
|
|
return;
|
|
}
|
|
}
|
|
else
|
|
goal = current_fs->super->s_first_data_block;
|
|
|
|
printf("Free blocks found: ");
|
|
free_blk = goal - 1;
|
|
while (count-- > 0) {
|
|
retval = ext2fs_new_block(current_fs, free_blk + 1, 0,
|
|
&free_blk);
|
|
if (first_free) {
|
|
if (first_free == free_blk)
|
|
break;
|
|
} else
|
|
first_free = free_blk;
|
|
if (retval) {
|
|
com_err("ext2fs_new_block", retval, 0);
|
|
return;
|
|
} else
|
|
printf("%u ", free_blk);
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
void do_find_free_inode(int argc, char *argv[])
|
|
{
|
|
ext2_ino_t free_inode, dir;
|
|
int mode;
|
|
int retval;
|
|
char *tmp;
|
|
|
|
if (argc > 3 || (argc>1 && *argv[1] == '?')) {
|
|
com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
|
|
return;
|
|
}
|
|
if (check_fs_open(argv[0]))
|
|
return;
|
|
|
|
if (argc > 1) {
|
|
dir = strtol(argv[1], &tmp, 0);
|
|
if (*tmp) {
|
|
com_err(argv[0], 0, "Bad dir - %s", argv[1]);
|
|
return;
|
|
}
|
|
}
|
|
else
|
|
dir = root;
|
|
if (argc > 2) {
|
|
mode = strtol(argv[2], &tmp, 0);
|
|
if (*tmp) {
|
|
com_err(argv[0], 0, "Bad mode - %s", argv[2]);
|
|
return;
|
|
}
|
|
} else
|
|
mode = 010755;
|
|
|
|
retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
|
|
if (retval)
|
|
com_err("ext2fs_new_inode", retval, 0);
|
|
else
|
|
printf("Free inode found: %u\n", free_inode);
|
|
}
|
|
|
|
static errcode_t copy_file(int fd, ext2_ino_t newfile)
|
|
{
|
|
ext2_file_t e2_file;
|
|
errcode_t retval;
|
|
int got;
|
|
unsigned int written;
|
|
char buf[8192];
|
|
char *ptr;
|
|
|
|
retval = ext2fs_file_open(current_fs, newfile,
|
|
EXT2_FILE_WRITE, &e2_file);
|
|
if (retval)
|
|
return retval;
|
|
|
|
while (1) {
|
|
got = read(fd, buf, sizeof(buf));
|
|
if (got == 0)
|
|
break;
|
|
if (got < 0) {
|
|
retval = errno;
|
|
goto fail;
|
|
}
|
|
ptr = buf;
|
|
while (got > 0) {
|
|
retval = ext2fs_file_write(e2_file, ptr,
|
|
got, &written);
|
|
if (retval)
|
|
goto fail;
|
|
|
|
got -= written;
|
|
ptr += written;
|
|
}
|
|
}
|
|
retval = ext2fs_file_close(e2_file);
|
|
return retval;
|
|
|
|
fail:
|
|
(void) ext2fs_file_close(e2_file);
|
|
return retval;
|
|
}
|
|
|
|
|
|
void do_write(int argc, char *argv[])
|
|
{
|
|
int fd;
|
|
struct stat statbuf;
|
|
ext2_ino_t newfile;
|
|
errcode_t retval;
|
|
struct ext2_inode inode;
|
|
|
|
if (common_args_process(argc, argv, 3, 3, "write",
|
|
"<native file> <new file>", CHECK_FS_RW))
|
|
return;
|
|
|
|
fd = open(argv[1], O_RDONLY);
|
|
if (fd < 0) {
|
|
com_err(argv[1], errno, 0);
|
|
return;
|
|
}
|
|
if (fstat(fd, &statbuf) < 0) {
|
|
com_err(argv[1], errno, 0);
|
|
close(fd);
|
|
return;
|
|
}
|
|
|
|
retval = ext2fs_namei(current_fs, root, cwd, argv[2], &newfile);
|
|
if (retval == 0) {
|
|
com_err(argv[0], 0, "The file '%s' already exists\n", argv[2]);
|
|
close(fd);
|
|
return;
|
|
}
|
|
|
|
retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
|
|
if (retval) {
|
|
com_err(argv[0], retval, 0);
|
|
close(fd);
|
|
return;
|
|
}
|
|
printf("Allocated inode: %u\n", newfile);
|
|
retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
|
|
EXT2_FT_REG_FILE);
|
|
if (retval == EXT2_ET_DIR_NO_SPACE) {
|
|
retval = ext2fs_expand_dir(current_fs, cwd);
|
|
if (retval) {
|
|
com_err(argv[0], retval, "while expanding directory");
|
|
close(fd);
|
|
return;
|
|
}
|
|
retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
|
|
EXT2_FT_REG_FILE);
|
|
}
|
|
if (retval) {
|
|
com_err(argv[2], retval, 0);
|
|
close(fd);
|
|
return;
|
|
}
|
|
if (ext2fs_test_inode_bitmap(current_fs->inode_map,newfile))
|
|
com_err(argv[0], 0, "Warning: inode already set");
|
|
ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0);
|
|
memset(&inode, 0, sizeof(inode));
|
|
inode.i_mode = (statbuf.st_mode & ~LINUX_S_IFMT) | LINUX_S_IFREG;
|
|
inode.i_atime = inode.i_ctime = inode.i_mtime =
|
|
current_fs->now ? current_fs->now : time(0);
|
|
inode.i_links_count = 1;
|
|
inode.i_size = statbuf.st_size;
|
|
if (current_fs->super->s_feature_incompat &
|
|
EXT3_FEATURE_INCOMPAT_EXTENTS)
|
|
inode.i_flags |= EXT4_EXTENTS_FL;
|
|
if (debugfs_write_new_inode(newfile, &inode, argv[0])) {
|
|
close(fd);
|
|
return;
|
|
}
|
|
if (LINUX_S_ISREG(inode.i_mode)) {
|
|
retval = copy_file(fd, newfile);
|
|
if (retval)
|
|
com_err("copy_file", retval, 0);
|
|
}
|
|
close(fd);
|
|
}
|
|
|
|
void do_mknod(int argc, char *argv[])
|
|
{
|
|
unsigned long mode, major, minor;
|
|
ext2_ino_t newfile;
|
|
errcode_t retval;
|
|
struct ext2_inode inode;
|
|
int filetype, nr;
|
|
|
|
if (check_fs_open(argv[0]))
|
|
return;
|
|
if (argc < 3 || argv[2][1]) {
|
|
usage:
|
|
com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
|
|
return;
|
|
}
|
|
mode = minor = major = 0;
|
|
switch (argv[2][0]) {
|
|
case 'p':
|
|
mode = LINUX_S_IFIFO;
|
|
filetype = EXT2_FT_FIFO;
|
|
nr = 3;
|
|
break;
|
|
case 'c':
|
|
mode = LINUX_S_IFCHR;
|
|
filetype = EXT2_FT_CHRDEV;
|
|
nr = 5;
|
|
break;
|
|
case 'b':
|
|
mode = LINUX_S_IFBLK;
|
|
filetype = EXT2_FT_BLKDEV;
|
|
nr = 5;
|
|
break;
|
|
default:
|
|
filetype = 0;
|
|
nr = 0;
|
|
}
|
|
if (nr == 5) {
|
|
major = strtoul(argv[3], argv+3, 0);
|
|
minor = strtoul(argv[4], argv+4, 0);
|
|
if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
|
|
nr = 0;
|
|
}
|
|
if (argc != nr)
|
|
goto usage;
|
|
if (check_fs_read_write(argv[0]))
|
|
return;
|
|
retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
|
|
if (retval) {
|
|
com_err(argv[0], retval, 0);
|
|
return;
|
|
}
|
|
printf("Allocated inode: %u\n", newfile);
|
|
retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype);
|
|
if (retval == EXT2_ET_DIR_NO_SPACE) {
|
|
retval = ext2fs_expand_dir(current_fs, cwd);
|
|
if (retval) {
|
|
com_err(argv[0], retval, "while expanding directory");
|
|
return;
|
|
}
|
|
retval = ext2fs_link(current_fs, cwd, argv[1], newfile,
|
|
filetype);
|
|
}
|
|
if (retval) {
|
|
com_err(argv[1], retval, 0);
|
|
return;
|
|
}
|
|
if (ext2fs_test_inode_bitmap(current_fs->inode_map,newfile))
|
|
com_err(argv[0], 0, "Warning: inode already set");
|
|
ext2fs_mark_inode_bitmap(current_fs->inode_map, newfile);
|
|
ext2fs_mark_ib_dirty(current_fs);
|
|
memset(&inode, 0, sizeof(inode));
|
|
inode.i_mode = mode;
|
|
inode.i_atime = inode.i_ctime = inode.i_mtime =
|
|
current_fs->now ? current_fs->now : time(0);
|
|
if ((major < 256) && (minor < 256)) {
|
|
inode.i_block[0] = major*256+minor;
|
|
inode.i_block[1] = 0;
|
|
} else {
|
|
inode.i_block[0] = 0;
|
|
inode.i_block[1] = (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12);
|
|
}
|
|
inode.i_links_count = 1;
|
|
if (debugfs_write_new_inode(newfile, &inode, argv[0]))
|
|
return;
|
|
}
|
|
|
|
void do_mkdir(int argc, char *argv[])
|
|
{
|
|
char *cp;
|
|
ext2_ino_t parent;
|
|
char *name;
|
|
errcode_t retval;
|
|
|
|
if (common_args_process(argc, argv, 2, 2, "mkdir",
|
|
"<filename>", CHECK_FS_RW))
|
|
return;
|
|
|
|
cp = strrchr(argv[1], '/');
|
|
if (cp) {
|
|
*cp = 0;
|
|
parent = string_to_inode(argv[1]);
|
|
if (!parent) {
|
|
com_err(argv[1], ENOENT, 0);
|
|
return;
|
|
}
|
|
name = cp+1;
|
|
} else {
|
|
parent = cwd;
|
|
name = argv[1];
|
|
}
|
|
|
|
try_again:
|
|
retval = ext2fs_mkdir(current_fs, parent, 0, name);
|
|
if (retval == EXT2_ET_DIR_NO_SPACE) {
|
|
retval = ext2fs_expand_dir(current_fs, parent);
|
|
if (retval) {
|
|
com_err(argv[0], retval, "while expanding directory");
|
|
return;
|
|
}
|
|
goto try_again;
|
|
}
|
|
if (retval) {
|
|
com_err("ext2fs_mkdir", retval, 0);
|
|
return;
|
|
}
|
|
|
|
}
|
|
|
|
static int release_blocks_proc(ext2_filsys fs, blk_t *blocknr,
|
|
int blockcnt EXT2FS_ATTR((unused)),
|
|
void *private EXT2FS_ATTR((unused)))
|
|
{
|
|
blk_t block;
|
|
|
|
block = *blocknr;
|
|
ext2fs_block_alloc_stats(fs, block, -1);
|
|
return 0;
|
|
}
|
|
|
|
static void kill_file_by_inode(ext2_ino_t inode)
|
|
{
|
|
struct ext2_inode inode_buf;
|
|
|
|
if (debugfs_read_inode(inode, &inode_buf, 0))
|
|
return;
|
|
inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
|
|
if (debugfs_write_inode(inode, &inode_buf, 0))
|
|
return;
|
|
if (!ext2fs_inode_has_valid_blocks(&inode_buf))
|
|
return;
|
|
|
|
ext2fs_block_iterate(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
|
|
release_blocks_proc, NULL);
|
|
printf("\n");
|
|
ext2fs_inode_alloc_stats2(current_fs, inode, -1,
|
|
LINUX_S_ISDIR(inode_buf.i_mode));
|
|
}
|
|
|
|
|
|
void do_kill_file(int argc, char *argv[])
|
|
{
|
|
ext2_ino_t inode_num;
|
|
|
|
if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
|
|
return;
|
|
|
|
kill_file_by_inode(inode_num);
|
|
}
|
|
|
|
void do_rm(int argc, char *argv[])
|
|
{
|
|
int retval;
|
|
ext2_ino_t inode_num;
|
|
struct ext2_inode inode;
|
|
|
|
if (common_args_process(argc, argv, 2, 2, "rm",
|
|
"<filename>", CHECK_FS_RW))
|
|
return;
|
|
|
|
retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
|
|
if (retval) {
|
|
com_err(argv[0], retval, "while trying to resolve filename");
|
|
return;
|
|
}
|
|
|
|
if (debugfs_read_inode(inode_num, &inode, argv[0]))
|
|
return;
|
|
|
|
if (LINUX_S_ISDIR(inode.i_mode)) {
|
|
com_err(argv[0], 0, "file is a directory");
|
|
return;
|
|
}
|
|
|
|
--inode.i_links_count;
|
|
if (debugfs_write_inode(inode_num, &inode, argv[0]))
|
|
return;
|
|
|
|
unlink_file_by_name(argv[1]);
|
|
if (inode.i_links_count == 0)
|
|
kill_file_by_inode(inode_num);
|
|
}
|
|
|
|
struct rd_struct {
|
|
ext2_ino_t parent;
|
|
int empty;
|
|
};
|
|
|
|
static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
|
|
int entry EXT2FS_ATTR((unused)),
|
|
struct ext2_dir_entry *dirent,
|
|
int offset EXT2FS_ATTR((unused)),
|
|
int blocksize EXT2FS_ATTR((unused)),
|
|
char *buf EXT2FS_ATTR((unused)),
|
|
void *private)
|
|
{
|
|
struct rd_struct *rds = (struct rd_struct *) private;
|
|
|
|
if (dirent->inode == 0)
|
|
return 0;
|
|
if (((dirent->name_len&0xFF) == 1) && (dirent->name[0] == '.'))
|
|
return 0;
|
|
if (((dirent->name_len&0xFF) == 2) && (dirent->name[0] == '.') &&
|
|
(dirent->name[1] == '.')) {
|
|
rds->parent = dirent->inode;
|
|
return 0;
|
|
}
|
|
rds->empty = 0;
|
|
return 0;
|
|
}
|
|
|
|
void do_rmdir(int argc, char *argv[])
|
|
{
|
|
int retval;
|
|
ext2_ino_t inode_num;
|
|
struct ext2_inode inode;
|
|
struct rd_struct rds;
|
|
|
|
if (common_args_process(argc, argv, 2, 2, "rmdir",
|
|
"<filename>", CHECK_FS_RW))
|
|
return;
|
|
|
|
retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
|
|
if (retval) {
|
|
com_err(argv[0], retval, "while trying to resolve filename");
|
|
return;
|
|
}
|
|
|
|
if (debugfs_read_inode(inode_num, &inode, argv[0]))
|
|
return;
|
|
|
|
if (!LINUX_S_ISDIR(inode.i_mode)) {
|
|
com_err(argv[0], 0, "file is not a directory");
|
|
return;
|
|
}
|
|
|
|
rds.parent = 0;
|
|
rds.empty = 1;
|
|
|
|
retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
|
|
0, rmdir_proc, &rds);
|
|
if (retval) {
|
|
com_err(argv[0], retval, "while iterating over directory");
|
|
return;
|
|
}
|
|
if (rds.empty == 0) {
|
|
com_err(argv[0], 0, "directory not empty");
|
|
return;
|
|
}
|
|
|
|
inode.i_links_count = 0;
|
|
if (debugfs_write_inode(inode_num, &inode, argv[0]))
|
|
return;
|
|
|
|
unlink_file_by_name(argv[1]);
|
|
kill_file_by_inode(inode_num);
|
|
|
|
if (rds.parent) {
|
|
if (debugfs_read_inode(rds.parent, &inode, argv[0]))
|
|
return;
|
|
if (inode.i_links_count > 1)
|
|
inode.i_links_count--;
|
|
if (debugfs_write_inode(rds.parent, &inode, argv[0]))
|
|
return;
|
|
}
|
|
}
|
|
|
|
void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
|
|
char *argv[] EXT2FS_ATTR((unused)))
|
|
{
|
|
FILE *out = stdout;
|
|
|
|
if (current_fs)
|
|
fprintf(out, "Open mode: read-%s\n",
|
|
current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
|
|
fprintf(out, "Filesystem in use: %s\n",
|
|
current_fs ? current_fs->device_name : "--none--");
|
|
}
|
|
|
|
void do_expand_dir(int argc, char *argv[])
|
|
{
|
|
ext2_ino_t inode;
|
|
int retval;
|
|
|
|
if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
|
|
return;
|
|
|
|
retval = ext2fs_expand_dir(current_fs, inode);
|
|
if (retval)
|
|
com_err("ext2fs_expand_dir", retval, 0);
|
|
return;
|
|
}
|
|
|
|
void do_features(int argc, char *argv[])
|
|
{
|
|
int i;
|
|
|
|
if (check_fs_open(argv[0]))
|
|
return;
|
|
|
|
if ((argc != 1) && check_fs_read_write(argv[0]))
|
|
return;
|
|
for (i=1; i < argc; i++) {
|
|
if (e2p_edit_feature(argv[i],
|
|
¤t_fs->super->s_feature_compat, 0))
|
|
com_err(argv[0], 0, "Unknown feature: %s\n",
|
|
argv[i]);
|
|
else
|
|
ext2fs_mark_super_dirty(current_fs);
|
|
}
|
|
print_features(current_fs->super, stdout);
|
|
}
|
|
|
|
void do_bmap(int argc, char *argv[])
|
|
{
|
|
ext2_ino_t ino;
|
|
blk_t blk, pblk;
|
|
int err;
|
|
errcode_t errcode;
|
|
|
|
if (common_args_process(argc, argv, 3, 3, argv[0],
|
|
"<file> logical_blk", 0))
|
|
return;
|
|
|
|
ino = string_to_inode(argv[1]);
|
|
if (!ino)
|
|
return;
|
|
blk = parse_ulong(argv[2], argv[0], "logical_block", &err);
|
|
|
|
errcode = ext2fs_bmap(current_fs, ino, 0, 0, 0, blk, &pblk);
|
|
if (errcode) {
|
|
com_err("argv[0]", errcode,
|
|
"while mapping logical block %u\n", blk);
|
|
return;
|
|
}
|
|
printf("%u\n", pblk);
|
|
}
|
|
|
|
void do_imap(int argc, char *argv[])
|
|
{
|
|
ext2_ino_t ino;
|
|
unsigned long group, block, block_nr, offset;
|
|
|
|
if (common_args_process(argc, argv, 2, 2, argv[0],
|
|
"<file>", 0))
|
|
return;
|
|
ino = string_to_inode(argv[1]);
|
|
if (!ino)
|
|
return;
|
|
|
|
group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
|
|
offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
|
|
EXT2_INODE_SIZE(current_fs->super);
|
|
block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
|
|
if (!current_fs->group_desc[(unsigned)group].bg_inode_table) {
|
|
com_err(argv[0], 0, "Inode table for group %lu is missing\n",
|
|
group);
|
|
return;
|
|
}
|
|
block_nr = current_fs->group_desc[(unsigned)group].bg_inode_table +
|
|
block;
|
|
offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
|
|
|
|
printf("Inode %d is part of block group %lu\n"
|
|
"\tlocated at block %lu, offset 0x%04lx\n", ino, group,
|
|
block_nr, offset);
|
|
|
|
}
|
|
|
|
void do_set_current_time(int argc, char *argv[])
|
|
{
|
|
time_t now;
|
|
|
|
if (common_args_process(argc, argv, 2, 2, argv[0],
|
|
"<time>", 0))
|
|
return;
|
|
|
|
now = string_to_time(argv[1]);
|
|
if (now == ((time_t) -1)) {
|
|
com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
|
|
argv[1]);
|
|
return;
|
|
|
|
} else {
|
|
printf("Setting current time to %s\n", time_to_string(now));
|
|
current_fs->now = now;
|
|
}
|
|
}
|
|
|
|
static int find_supp_feature(__u32 *supp, int feature_type, char *name)
|
|
{
|
|
int compat, bit, ret;
|
|
unsigned int feature_mask;
|
|
|
|
if (name) {
|
|
if (feature_type == E2P_FS_FEATURE)
|
|
ret = e2p_string2feature(name, &compat, &feature_mask);
|
|
else
|
|
ret = e2p_jrnl_string2feature(name, &compat,
|
|
&feature_mask);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (!(supp[compat] & feature_mask))
|
|
return 1;
|
|
} else {
|
|
for (compat = 0; compat < 3; compat++) {
|
|
for (bit = 0, feature_mask = 1; bit < 32;
|
|
bit++, feature_mask <<= 1) {
|
|
if (supp[compat] & feature_mask) {
|
|
if (feature_type == E2P_FS_FEATURE)
|
|
fprintf(stdout, " %s",
|
|
e2p_feature2string(compat,
|
|
feature_mask));
|
|
else
|
|
fprintf(stdout, " %s",
|
|
e2p_jrnl_feature2string(compat,
|
|
feature_mask));
|
|
}
|
|
}
|
|
}
|
|
fprintf(stdout, "\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void do_supported_features(int argc, char *argv[])
|
|
{
|
|
int i, j, ret;
|
|
__u32 supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
|
|
EXT2_LIB_FEATURE_INCOMPAT_SUPP,
|
|
EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
|
|
__u32 jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES,
|
|
JFS_KNOWN_INCOMPAT_FEATURES,
|
|
JFS_KNOWN_ROCOMPAT_FEATURES };
|
|
|
|
if (argc > 1) {
|
|
ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
|
|
if (ret) {
|
|
ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
|
|
argv[1]);
|
|
}
|
|
if (ret)
|
|
com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
|
|
else
|
|
fprintf(stdout, "Supported feature: %s\n", argv[1]);
|
|
} else {
|
|
fprintf(stdout, "Supported features:");
|
|
ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
|
|
ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
|
|
}
|
|
}
|
|
|
|
static int source_file(const char *cmd_file, int sci_idx)
|
|
{
|
|
FILE *f;
|
|
char buf[256];
|
|
char *cp;
|
|
int exit_status = 0;
|
|
int retval;
|
|
|
|
if (strcmp(cmd_file, "-") == 0)
|
|
f = stdin;
|
|
else {
|
|
f = fopen(cmd_file, "r");
|
|
if (!f) {
|
|
perror(cmd_file);
|
|
exit(1);
|
|
}
|
|
}
|
|
fflush(stdout);
|
|
fflush(stderr);
|
|
setbuf(stdout, NULL);
|
|
setbuf(stderr, NULL);
|
|
while (!feof(f)) {
|
|
if (fgets(buf, sizeof(buf), f) == NULL)
|
|
break;
|
|
cp = strchr(buf, '\n');
|
|
if (cp)
|
|
*cp = 0;
|
|
cp = strchr(buf, '\r');
|
|
if (cp)
|
|
*cp = 0;
|
|
printf("debugfs: %s\n", buf);
|
|
retval = ss_execute_line(sci_idx, buf);
|
|
if (retval) {
|
|
ss_perror(sci_idx, retval, buf);
|
|
exit_status++;
|
|
}
|
|
}
|
|
return exit_status;
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
int retval;
|
|
int sci_idx;
|
|
const char *usage = "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] [-R request] [-V] [[-w] [-c] device]";
|
|
int c;
|
|
int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES;
|
|
char *request = 0;
|
|
int exit_status = 0;
|
|
char *cmd_file = 0;
|
|
blk_t superblock = 0;
|
|
blk_t blocksize = 0;
|
|
int catastrophic = 0;
|
|
char *data_filename = 0;
|
|
|
|
if (debug_prog_name == 0)
|
|
debug_prog_name = "debugfs";
|
|
|
|
add_error_table(&et_ext2_error_table);
|
|
fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
|
|
E2FSPROGS_VERSION, E2FSPROGS_DATE);
|
|
|
|
while ((c = getopt (argc, argv, "iwcR:f:b:s:Vd:")) != EOF) {
|
|
switch (c) {
|
|
case 'R':
|
|
request = optarg;
|
|
break;
|
|
case 'f':
|
|
cmd_file = optarg;
|
|
break;
|
|
case 'd':
|
|
data_filename = optarg;
|
|
break;
|
|
case 'i':
|
|
open_flags |= EXT2_FLAG_IMAGE_FILE;
|
|
break;
|
|
case 'w':
|
|
open_flags |= EXT2_FLAG_RW;
|
|
break;
|
|
case 'b':
|
|
blocksize = parse_ulong(optarg, argv[0],
|
|
"block size", 0);
|
|
break;
|
|
case 's':
|
|
superblock = parse_ulong(optarg, argv[0],
|
|
"superblock number", 0);
|
|
break;
|
|
case 'c':
|
|
catastrophic = 1;
|
|
break;
|
|
case 'V':
|
|
/* Print version number and exit */
|
|
fprintf(stderr, "\tUsing %s\n",
|
|
error_message(EXT2_ET_BASE));
|
|
exit(0);
|
|
default:
|
|
com_err(argv[0], 0, usage, debug_prog_name);
|
|
return 1;
|
|
}
|
|
}
|
|
if (optind < argc)
|
|
open_filesystem(argv[optind], open_flags,
|
|
superblock, blocksize, catastrophic,
|
|
data_filename);
|
|
|
|
sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
|
|
&debug_cmds, &retval);
|
|
if (retval) {
|
|
ss_perror(sci_idx, retval, "creating invocation");
|
|
exit(1);
|
|
}
|
|
ss_get_readline(sci_idx);
|
|
|
|
(void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
|
|
if (retval) {
|
|
ss_perror(sci_idx, retval, "adding standard requests");
|
|
exit (1);
|
|
}
|
|
if (extra_cmds)
|
|
ss_add_request_table (sci_idx, extra_cmds, 1, &retval);
|
|
if (retval) {
|
|
ss_perror(sci_idx, retval, "adding extra requests");
|
|
exit (1);
|
|
}
|
|
if (request) {
|
|
retval = 0;
|
|
retval = ss_execute_line(sci_idx, request);
|
|
if (retval) {
|
|
ss_perror(sci_idx, retval, request);
|
|
exit_status++;
|
|
}
|
|
} else if (cmd_file) {
|
|
exit_status = source_file(cmd_file, sci_idx);
|
|
} else {
|
|
ss_listen(sci_idx);
|
|
}
|
|
|
|
ss_delete_invocation(sci_idx);
|
|
|
|
if (current_fs)
|
|
close_filesystem();
|
|
|
|
remove_error_table(&et_ext2_error_table);
|
|
return exit_status;
|
|
}
|