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/*      $OpenBSD: ip_divert.h,v 1.1 2009/09/08 17:00:41 michele Exp $ */

/*
 * Copyright (c) 2009 Michele Marchetto <michele@openbsd.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef _IP_DIVERT_H_
#define _IP_DIVERT_H_

#define	DIVERTCTL_RECVSPACE	1	/* receive buffer space */
#define	DIVERTCTL_SENDSPACE	2	/* send buffer space */
#define	DIVERTCTL_MAXID		3

#define	DIVERTCTL_NAMES { \
	{ 0, 0 }, \
	{ "recvspace", CTLTYPE_INT }, \
	{ "sendspace", CTLTYPE_INT } \
}

#define	DIVERTCTL_VARS { \
	NULL, \
	&divert_recvspace, \
	&divert_sendspace \
}

#ifdef _KERNEL
extern struct	inpcbtable divbtable;

void	 divert_init(void);
void	 divert_input(struct mbuf *, ...);
void	 divert_packet(struct mbuf *, int);
int	 divert_output(struct mbuf *, ...);
int	 divert_sysctl(int *, u_int, void *, size_t *, void *, size_t);
int	 divert_usrreq(struct socket *,
	    int, struct mbuf *, struct mbuf *, struct mbuf *, struct proc *);

#endif /* _KERNEL */
#endif /* _IP_DIVERT_H_ */