1/*	$NetBSD: raw_cb.h,v 1.30 2018/09/07 06:13:14 maxv Exp $	*/
2
3/*
4 * Copyright (c) 1980, 1986, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 *	@(#)raw_cb.h	8.1 (Berkeley) 6/10/93
32 */
33
34#ifndef _NET_RAW_CB_H_
35#define _NET_RAW_CB_H_
36
37#ifdef _KERNEL
38
39/*
40 * Raw protocol interface control block.  Used
41 * to tie a socket to the generic raw interface.
42 */
43struct rawcb {
44	LIST_ENTRY(rawcb) rcb_list;	/* doubly linked list */
45	struct	socket *rcb_socket;	/* back pointer to socket */
46	struct	sockaddr *rcb_faddr;	/* destination address */
47	struct	sockaddr *rcb_laddr;	/* socket's address */
48	struct	sockproto rcb_proto;	/* protocol family, protocol */
49	int	(*rcb_filter)(struct mbuf *, struct sockproto *,
50		              struct rawcb *);
51	size_t	rcb_len;
52};
53
54#define	sotorawcb(so)		((struct rawcb *)(so)->so_pcb)
55
56/*
57 * Nominal space allocated to a raw socket.
58 */
59#define	RAWSNDQ		8192
60#define	RAWRCVQ		16384
61
62LIST_HEAD(rawcbhead, rawcb);
63
64int	raw_attach(struct socket *, int, struct rawcbhead *);
65void	*raw_ctlinput(int, const struct sockaddr *, void *);
66void	raw_detach(struct socket *);
67void	raw_disconnect(struct rawcb *);
68void	raw_input(struct mbuf *, struct sockproto *, struct sockaddr *,
69	    struct sockaddr *, struct rawcbhead *);
70int	raw_usrreq(struct socket *,
71	    int, struct mbuf *, struct mbuf *, struct mbuf *, struct lwp *);
72void	raw_setsockaddr(struct rawcb *, struct sockaddr *);
73void	raw_setpeeraddr(struct rawcb *, struct sockaddr *);
74int	raw_send(struct socket *,
75	    struct mbuf *, struct sockaddr *, struct mbuf *, struct lwp *,
76	    int (*)(struct mbuf *, struct socket *));
77
78#endif /* _KERNEL */
79
80#endif /* !_NET_RAW_CB_H_ */
81