/*

 * Copyright (c) 2011, Broadcom Corporation

 * Copyright (c) 2014, QLogic Corporation

 *

 * Written by:  Eddie Wai  (eddie.wai@broadcom.com)

 *

 * 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. All advertising materials mentioning features or use of this software

 *    must display the following acknowledgement:

 *      This product includes software developed by Adam Dunkels.

 * 4. 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.

 *

 * ipv6_ndpc.h - Top level IPv6 Network Discovery Protocol Engine (RFC4861)

 *

 */

#ifndef __NDPC_H__

#define __NDPC_H__

#include <time.h>

#include "nic.h"

#include "timer.h"

#include "pt.h"

struct ndpc_reqptr {

	void *eth;

	void *ipv6;

};

struct ndpc_state {

	struct pt pt;

	nic_t *nic;

	struct uip_stack *ustack;

	char state;

	struct timer timer;

	u16_t ticks;

	void *mac_addr;

	int mac_len;

	int retry_count;

	time_t last_update;

	void *ipv6_context;

	void *dhcpv6_context;

};

enum {

	NDPC_STATE_INIT,

	NDPC_STATE_RTR_SOL,

	NDPC_STATE_RTR_ADV,

	NDPC_STATE_DHCPV6_DIS,

	NDPC_STATE_DHCPV6_DONE,

	NDPC_STATE_BACKGROUND_LOOP

};

int ndpc_init(nic_t *nic, struct uip_stack *ustack,

	      const void *mac_addr, int mac_len);

void ndpc_call(struct uip_stack *ustack);

void ndpc_exit(struct ndpc_state *ndp);

enum {

	NEIGHBOR_SOLICIT,

	CHECK_LINK_LOCAL_ADDR,

	GET_LINK_LOCAL_ADDR,

	GET_DEFAULT_ROUTER_ADDR,

	CHECK_ARP_TABLE,

	GET_HOST_ADDR

};

int ndpc_request(struct uip_stack *ustack, void *in, void *out, int request);

#define UIP_NDP_CALL ndpc_call

#endif /* __NDPC_H__ */