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Diffstat (limited to 'package/mtd/src/seama.h')
| -rw-r--r-- | package/mtd/src/seama.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/package/mtd/src/seama.h b/package/mtd/src/seama.h new file mode 100644 index 000000000..02683b6e9 --- /dev/null +++ b/package/mtd/src/seama.h @@ -0,0 +1,108 @@ +/* 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 |