/***
 *
 *  include/ipv4/protocol.h
 *
 *  RTnet - real-time networking subsystem
 *  Copyright (C) 1999, 2000 Zentropic Computing, LLC
 *                2002       Ulrich Marx <marx@kammer.uni-hannover.de>
 *                2004, 2005 Jan Kiszka <jan.kiszka@web.de>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

#ifndef __RTNET_PROTOCOL_H_
#define __RTNET_PROTOCOL_H_

#include <rtnet_socket.h>
#include <rtskb.h>

#define MAX_RT_INET_PROTOCOLS 32

/***
 * transport layer protocol
 */
struct rtinet_protocol {
	char *name;
	unsigned short protocol;

	struct rtsocket *(*dest_socket)(struct rtskb *);
	void (*rcv_handler)(struct rtskb *);
	void (*err_handler)(struct rtskb *);
	int (*init_socket)(struct rtdm_fd *);
};

extern struct rtinet_protocol *rt_inet_protocols[];

#define rt_inet_hashkey(id) (id & (MAX_RT_INET_PROTOCOLS - 1))
extern void rt_inet_add_protocol(struct rtinet_protocol *prot);
extern void rt_inet_del_protocol(struct rtinet_protocol *prot);
extern int rt_inet_socket(struct rtdm_fd *fd, int protocol);

#endif /* __RTNET_PROTOCOL_H_ */