/*
 * ipv6cp.h - Self explanitory
 * Copyright (C) 1997-2000 SpellCaster Telecommunications Inc.
 * Released under the GNU Public License. See LICENSE file for details.
 */

#ifndef IPV6CP_H
#define IPV6CP_H

#include "debug.h"
#include "fsm.h"
#include "protocol.h"
#include "packet.h"

class CInterface;

// Packet Codes

// Option Types
#define IPV6CP_OPT_TOKEN	1	/* Interface-token */
#define IPV6CP_OPT_IPV6COMPR	2

// Option Lengths
#define IPV6CP_HEADER_LENGTH	4
#define IPV6CP_OPT_TOKEN_LEN	10	/* code, length + 8 byte token */

class dfs_object_t;
class ctrlfd_t;

class CIpv6cpProtocol : public CFsmProtocol
{
public:
	CIpv6cpProtocol();
	~CIpv6cpProtocol();

public:
	// External Events
	void Input(CPppPacket *);

	CInterface *m_parent;

private:
	unsigned long long	m_our_token;
	unsigned long long	m_their_token;

protected:
	virtual void ThisLayerStarted();
	virtual void ThisLayerFinished(const char *why);
	virtual void ThisLayerUp();
	virtual void SndConfReq();
	virtual void SndConfAck();
	virtual void SndConfNak();
	virtual void SndTermReq();
	virtual void SndTermAck();
	virtual void SndCodeReject(CPppPacket *);
	virtual void RcvCodeReject(CPppPacket *);

	virtual void RcvConfAck(CPppPacket *);
	virtual void RcvConfRej(CPppPacket *);
	virtual void RcvConfNak(CPppPacket *);
	virtual void RcvConfReq(CPppPacket *);

public:
	void SetWill(OptionSet_t &will) {
		return;
	}

	void dfs_restore(dfs_object_t *obj);
	void dump_full_state(ctrlfd_t *cfd);
};

#endif // IPV6CP_H