/*

 * Copyright (c) 2006, Swedish Institute of Computer Science.

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. 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.

 * 3. Neither the name of the Institute nor the names of its contributors

 *    may be used to endorse or promote products derived from this software

 *    without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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.

 *

 * This file is part of the uIP TCP/IP stack

 *

 */

/**

 * \file

 *         Header file for database of link-local neighbors, used by

 *         IPv6 code and to be used by future ARP code.

 * \author

 *         Adam Dunkels <adam@sics.se>

 */

#ifndef __UIP_NEIGHBOR_H__

#define __UIP_NEIGHBOR_H__

#include "uip.h"

#include "uip_eth.h"

/*  ICMP types */

/*  ICMPv6 error Messages */

#define ICMPV6_DEST_UNREACH		1

#define ICMPV6_PKT_TOOBIG		2

#define ICMPV6_TIME_EXCEED		3

#define ICMPV6_PARAMPROB		4

/*  ICMPv6 Informational Messages */

#define ICMPV6_ECHO_REQUEST		128

#define ICMPV6_ECHO_REPLY		129

#define ICMPV6_MGM_QUERY		130

#define ICMPV6_MGM_REPORT		131

#define ICMPV6_MGM_REDUCTION		132

/* Codes for Destination Unreachable  */

#define ICMPV6_NOROUTE			0

#define ICMPV6_ADM_PROHIBITED		1

#define ICMPV6_NOT_NEIGHBOUR		2

#define ICMPV6_ADDR_UNREACH		3

#define ICMPV6_PORT_UNREACH		4

/* Codes for Time Exceeded */

#define ICMPV6_EXC_HOPLIMIT             0

#define ICMPV6_EXC_FRAGTIME             1

/* Codes for Parameter Problem */

#define ICMPV6_HDR_FIELD                0

#define ICMPV6_UNK_NEXTHDR              1

#define ICMPV6_UNK_OPTION               2

#if 0

struct __attribute__ ((__packed__)) icmpv6_hdr {

	u8_t type;

	u8_t code;

	u16_t checksum;

	union {

		struct {

			u16_t id;

			u16_t sequence;

		} echo;

		u32_t gateway;

		struct {

			u16_t unused;

			u16_t mtu;

		} frag;

	} un;

};

#endif

void uip_neighbor_init(struct uip_stack *ustack);

void uip_neighbor_add(struct uip_stack *ustack,

		      struct in6_addr *addr6, struct uip_eth_addr *addr);

void uip_neighbor_update(struct uip_stack *ustack, struct in6_addr *addr6);

int uip_neighbor_lookup(struct uip_stack *ustack, struct in6_addr *ipaddr,

			uint8_t *mac_addr);

void uip_neighbor_periodic(void);

void uip_neighbor_out(struct uip_stack *ustack);

#endif /* __UIP-NEIGHBOR_H__ */