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/*

 * 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

 *  \todo

 */

#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 );

int ip_client_process_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

/** @}

 */