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+/* 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