/*
  Copyright (c) 2012, Matthias Schiffer <mschiffer@universe-factory.net>
  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.

  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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.
*/


#ifndef _FFD_SEND_H_
#define _FFD_SEND_H_

#include "ffd.h"


typedef struct _ffd_update_t ffd_update_t;


void ffd_send_ack(ffd_neigh_t *neigh, uint16_t nonce);
void ffd_send_hellos(void);
void ffd_send_update(ffd_iface_t *iface, ffd_neigh_t *neigh, ffd_announce_t *announce, bool with_data);
void ffd_send_retract(ffd_neigh_t *neigh, ffd_node_id_t node, uint16_t type, uint16_t key);
void ffd_send_announce_request(ffd_iface_t *iface, ffd_neigh_t *neigh, ffd_node_id_t node, uint16_t type, uint16_t key, bool with_data);
void ffd_send_seqno_request(ffd_neigh_t *neigh, ffd_announce_t *announce, uint16_t seqno);

ffd_update_t* ffd_send_update_new(ffd_iface_t *iface, ffd_neigh_t *neigh, const uint16_t *nonce);
bool ffd_send_update_add(ffd_update_t *update, ffd_announce_t *announce);
bool ffd_send_update_retract(ffd_update_t *update, ffd_node_id_t node, uint16_t type, uint16_t key);
void ffd_send_update_finish(ffd_update_t *update);


static inline void ffd_send_seqno_request_for(ffd_neigh_t *neigh, ffd_announce_t *announce) {
	if (FFD_IS_INFINITY(announce->feasibility_distance))
		return;

	ffd_send_seqno_request(neigh, announce, announce->feasibility_distance.seqno+1);
}

#endif /* _FFD_SEND_H_ */