/*
 * Copyright (c) 2009 Lukas Mejdrech
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/** @addtogroup ip
 *  @{
 */

/**
 * @file
 */

#ifndef __NET_IP_CLIENT_H__
#define __NET_IP_CLIENT_H__

#include <sys/types.h>

typedef uint8_t	ip_ttl_t;
typedef uint8_t	ip_tos_t;
typedef uint8_t	ip_protocol_t;

#include "../structures/packet/packet.h"

#define IPVERSION	4
#define MAXTTL		255
#define IPDEFTTL	64

#define IPTOS_TOS_MASK				0x1E
#define IPTOS_PRECEDENCE_SHIFT		5
#define IPTOS_DELAY_SHIFT			4
#define IPTOS_THROUGHPUT_SHIFT		3
#define IPTOS_RELIABILITY_SHIFT		2
#define IPTOS_COST_SHIFT			1

#define IPTOS_NORMALDELAY			( 0x0 << IPTOS_DELAY_SHIFT )
#define IPTOS_LOWDELAY				( 0x1 << IPTOS_DELAY_SHIFT )

#define IPTOS_NORMALTHROUGHPUT		( 0x0 << IPTOS_THROUGHPUT_SHIFT )
#define IPTOS_THROUGHPUT			( 0x1 << IPTOS_THROUGHPUT_SHIFT )

#define IPTOS_NORMALRELIABILITY		( 0x0 << IPTOS_RELIABILITY_SHIFT )
#define IPTOS_RELIABILITY			( 0x1 << IPTOS_RELIABILITY_SHIFT )

#define IPTOS_NORMALCOST			( 0x0 << IPTOS_COST_SHIFT )
#define IPTOS_MICNCOST				( 0x1 << IPTOS_COST_SHIFT )

#define IPTOS_PREC_MASK				0xE0
#define IPTOS_PREC_ROUTINE			( 0x0 << IPTOS_PRECEDENCE_SHIFT )
#define IPTOS_PREC_PRIORITY			( 0x1 << IPTOS_PRECEDENCE_SHIFT )
#define IPTOS_PREC_IMMEDIATE		( 0x2 << IPTOS_PRECEDENCE_SHIFT )
#define IPTOS_PREC_FLASH			( 0x3 << IPTOS_PRECEDENCE_SHIFT )
#define IPTOS_PREC_FLASHOVERRIDE	( 0x4 << IPTOS_PRECEDENCE_SHIFT )
#define IPTOS_PREC_CRITIC_ECP		( 0x5 << IPTOS_PRECEDENCE_SHIFT )
#define IPTOS_PREC_INTERNETCONTROL	( 0x6 << IPTOS_PRECEDENCE_SHIFT )
#define IPTOS_PREC_NETCONTROL		( 0x7 << IPTOS_PRECEDENCE_SHIFT )

#define IPOPT_COPY_SHIFT			7
#define IPOPT_CLASS_SHIFT			5
#define IPOPT_NUMBER_SHIFT			0
#define IPOPT_CLASS_MASK			0x60
#define IPOPT_NUMBER_MASK			0x1F

#define IPOPT_COPY					( 1 << IPOPT_COPY_SHIFT )

#define IPOPT_TYPE( copy, class, number )	((( copy ) & IPOPT_COPY ) | (( class ) & IPOPT_CLASS_MASK ) | (( number << IPOPT_NUMBER_SHIFT ) & IPOPT_NUMBER_MASK ))

#define	IPOPT_COPIED( o )			(( o ) & IPOPT_COPY )
#define	IPOPT_CLASS( o )			(( o ) & IPOPT_CLASS_MASK )
#define	IPOPT_NUMBER( o )			(( o ) & IPOPT_NUMBER_MASK )

#define	IPOPT_CONTROL				( 0 << IPOPT_CLASS_SHIFT )
#define	IPOPT_RESERVED1				( 1 << IPOPT_CLASS_SHIFT )
#define	IPOPT_MEASUREMENT			( 2 << IPOPT_CLASS_SHIFT )
#define	IPOPT_RESERVED2				( 3 << IPOPT_CLASS_SHIFT )

//#define IPOPT_END_OF_LIST		0x0
#define IPOPT_END					IPOPT_TYPE( 0, IPOPT_CONTROL, 0 )
//#define IPOPT_NO_OPERATION		0x1
#define IPOPT_NOOP					IPOPT_TYPE( 0, IPOPT_CONTROL, 1 )
//#define IPOPT_SECURITY			0x82
#define IPOPT_SEC					IPOPT_TYPE( IPOPT_COPY, IPOPT_CONTROL, 2 )
#define IPOPT_SEC_LENGTH			11
#define IPOPT_SEC_UNCLASIFIED		0x0
#define IPOPT_SEC_CONFIDENTIAL		0xF035
#define IPOPT_SEC_EFTO				0x789A
#define IPOPT_SEC_MMMM				0xBC4D
#define IPOPT_SEC_PROG				0x5E26
#define IPOPT_SEC_RESTRICTED		0xAF13
#define IPOPT_SEC_SECRET			0xD788
#define IPOPT_SEC_TOP_SECRET		0x6BC5
//#define IPOPT_LOOSE_SOURCE		0x83
#define IPOPT_LSRR					IPOPT_TYPE( IPOPT_COPY, IPOPT_CONTROL, 3 )
//#define IPOPT_STRICT_SOURCE		0x89
#define IPOPT_SSRR					IPOPT_TYPE( IPOPT_COPY, IPOPT_CONTROL, 9 )
//#define IPOPT_RECORD_ROUTE		0x07
#define IPOPT_RR					IPOPT_TYPE( IPOPT_COPY, IPOPT_CONTROL, 7 )
//#define IPOPT_STREAM_IDENTIFIER	0x88
#define IPOPT_SID					IPOPT_TYPE( IPOPT_COPY, IPOPT_CONTROL, 8 )
#define IPOPT_SID_LENGTH			4
//#define IPOPT_INTERNET_TIMESTAMP	0x44
#define IPOPT_TIMESTAMP				IPOPT_TYPE( IPOPT_COPY, IPOPT_MEASUREMENT, 4 )
#define IPOPT_CIPSO					IPOPT_TYPE( IPOPT_COPY, IPOPT_CONTROL, 5 )

#define IPOPT_NOP IPOPT_NOOP
#define IPOPT_EOL IPOPT_END
#define IPOPT_TS  IPOPT_TIMESTAMP

#define	IPOPT_TS_TSONLY		0		/* timestamps only */
#define	IPOPT_TS_TSANDADDR	1		/* timestamps and addresses */
#define	IPOPT_TS_PRESPEC	3		/* specified modules only */

int	ip_client_prepare_packet( packet_t packet, ip_protocol_t protocol, ip_ttl_t ttl, ip_tos_t tos, int dont_fragment, size_t ipopt_length );

// TODO ipopt manipulation

#endif

/** @}
 */