108 lines
3.7 KiB
C
108 lines
3.7 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* (SEA)ttle i(MA)ge is the image which used in project seattle.
|
|
*
|
|
* Created by David Hsieh <david_hsieh@alphanetworks.com>
|
|
* Copyright (C) 2008-2009 Alpha Networks, Inc.
|
|
*
|
|
* This file is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either'
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* The GNU C Library is distributed in the hope that it will be useful,'
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with the GNU C Library; if not, write to the Free
|
|
* Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
* 02111-1307 USA.
|
|
*/
|
|
|
|
#ifndef __SEAMA_HEADER_FILE__
|
|
#define __SEAMA_HEADER_FILE__
|
|
|
|
#include <stdint.h>
|
|
|
|
#define SEAMA_MAGIC 0x5EA3A417
|
|
|
|
/*
|
|
* SEAMA looks like the following map.
|
|
* All the data of the header should be in network byte order.
|
|
*
|
|
* +-------------+-------------+------------
|
|
* | SEAMA magic | ^
|
|
* +-------------+-------------+ |
|
|
* | reserved | meta size | |
|
|
* +-------------+-------------+ header
|
|
* | image size (0 bytes) | |
|
|
* +-------------+-------------+ |
|
|
* ~ Meta data ~ v
|
|
* +-------------+-------------+------------
|
|
* | SEAMA magic | ^ ^
|
|
* +-------------+-------------+ | |
|
|
* | reserved | meta size | | |
|
|
* +-------------+-------------+ | |
|
|
* | image size | | |
|
|
* +-------------+-------------+ header |
|
|
* | | | |
|
|
* | 16 bytes of MD5 digest | | |
|
|
* | | | |
|
|
* | | | |
|
|
* +-------------+-------------+ | |
|
|
* ~ Meta data ~ v |
|
|
* +-------------+-------------+------- |
|
|
* | | |
|
|
* | Image of the 1st entity | |
|
|
* ~ ~ 1st entity
|
|
* | | |
|
|
* | | v
|
|
* +-------------+-------------+-------------
|
|
* | SEAMA magic | ^ ^
|
|
* +-------------+-------------+ | |
|
|
* | reserved | meta size | | |
|
|
* +-------------+-------------+ | |
|
|
* | image size | | |
|
|
* +-------------+-------------+ header |
|
|
* | | | |
|
|
* | 16 bytes of MD5 digest | | |
|
|
* | | | |
|
|
* | | | |
|
|
* +-------------+-------------+ | |
|
|
* ~ Meta data ~ v |
|
|
* +-------------+-------------+------- |
|
|
* | | |
|
|
* | Image of the 2nd entity | |
|
|
* ~ ~ 2nd entity
|
|
* | | |
|
|
* | | v
|
|
* +-------------+-------------+-------------
|
|
*/
|
|
|
|
|
|
/*
|
|
* SEAMA header
|
|
*
|
|
* |<-------- 32 bits -------->|
|
|
* +-------------+-------------+
|
|
* | SEAMA magic |
|
|
* +-------------+-------------+
|
|
* | reserved | meta size |
|
|
* +-------------+-------------+
|
|
* | image size |
|
|
* +-------------+-------------+
|
|
*/
|
|
/* seama header */
|
|
typedef struct seama_hdr seamahdr_t;
|
|
struct seama_hdr
|
|
{
|
|
uint32_t magic; /* should always be SEAMA_MAGIC. */
|
|
uint16_t reserved; /* reserved for */
|
|
uint16_t metasize; /* size of the META data */
|
|
uint32_t size; /* size of the image */
|
|
} __attribute__ ((packed));
|
|
|
|
|
|
#endif
|