release/src/router/busybox/e2fsprogs/old_e2fsprogs/ext2fs/e2image.h

   1 /* vi: set sw=4 ts=4: */
   2 /*
   3  * e2image.h --- header file describing the ext2 image format
   4  *
   5  * Copyright (C) 2000 Theodore Ts'o.
   6  *
   7  * Note: this uses the POSIX IO interfaces, unlike most of the other
   8  * functions in this library.  So sue me.
   9  *
  10  * %Begin-Header%
  11  * This file may be redistributed under the terms of the GNU Public
  12  * License.
  13  * %End-Header%
  14  */
  15
  16
  17 struct ext2_image_hdr {
  18         __u32   magic_number;   /* This must be EXT2_ET_MAGIC_E2IMAGE */
  19         char    magic_descriptor[16]; /* "Ext2 Image 1.0", w/ null padding */
  20         char    fs_hostname[64];/* Hostname of machine of image */
  21         char    fs_netaddr[32]; /* Network address */
  22         __u32   fs_netaddr_type;/* 0 = IPV4, 1 = IPV6, etc. */
  23         __u32   fs_device;      /* Device number of image */
  24         char    fs_device_name[64]; /* Device name */
  25         char    fs_uuid[16];    /* UUID of filesystem */
  26         __u32   fs_blocksize;   /* Block size of the filesystem */
  27         __u32   fs_reserved[8];
  28
  29         __u32   image_device;   /* Device number of image file */
  30         __u32   image_inode;    /* Inode number of image file */
  31         __u32   image_time;     /* Time of image creation */
  32         __u32   image_reserved[8];
  33
  34         __u32   offset_super;   /* Byte offset of the sb and descriptors */
  35         __u32   offset_inode;   /* Byte offset of the inode table  */
  36         __u32   offset_inodemap; /* Byte offset of the inode bitmaps */
  37         __u32   offset_blockmap; /* Byte offset of the inode bitmaps */
  38         __u32   offset_reserved[8];
  39 };