1/*-
2 * Copyright (c) 1982, 1986, 1990, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 *	@(#)socketvar.h	8.3 (Berkeley) 2/19/95
30 *
31 * $FreeBSD$
32 */
33#ifndef _SYS_SOCKOPT_H_
34#define _SYS_SOCKOPT_H_
35
36#ifndef _KERNEL
37#error "no user-servicable parts inside"
38#endif
39
40
41struct thread;
42struct socket;
43
44/*
45 * Argument structure for sosetopt et seq.  This is in the KERNEL
46 * section because it will never be visible to user code.
47 */
48enum sopt_dir { SOPT_GET, SOPT_SET };
49
50struct	sockopt {
51	enum	sopt_dir sopt_dir; /* is this a get or a set? */
52	int	sopt_level;	/* second arg of [gs]etsockopt */
53	int	sopt_name;	/* third arg of [gs]etsockopt */
54	void   *sopt_val;	/* fourth arg of [gs]etsockopt */
55	size_t	sopt_valsize;	/* (almost) fifth arg of [gs]etsockopt */
56	struct	thread *sopt_td; /* calling thread or null if kernel */
57};
58
59int	sosetopt(struct socket *so, struct sockopt *sopt);
60int	sogetopt(struct socket *so, struct sockopt *sopt);
61int	sooptcopyin(struct sockopt *sopt, void *buf, size_t len, size_t minlen);
62int	sooptcopyout(struct sockopt *sopt, const void *buf, size_t len);
63/* XXX; prepare mbuf for (__FreeBSD__ < 3) routines. */
64int	soopt_getm(struct sockopt *sopt, struct mbuf **mp);
65int	soopt_mcopyin(struct sockopt *sopt, struct mbuf *m);
66int	soopt_mcopyout(struct sockopt *sopt, struct mbuf *m);
67int	do_getopt_accept_filter(struct socket *so, struct sockopt *sopt);
68int	do_setopt_accept_filter(struct socket *so, struct sockopt *sopt);
69int	so_setsockopt(struct socket *so, int level, int optname,
70	    void *optval, size_t optlen);
71
72#endif /* _SYS_SOCKOPT_H_ */
73