xref: /dragonfly/sys/net/raw_cb.h (revision 8aeffa9f)
1 /*
2  * Copyright (c) 1980, 1986, 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  * 3. 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  *	@(#)raw_cb.h	8.1 (Berkeley) 6/10/93
30  * $FreeBSD: src/sys/net/raw_cb.h,v 1.12 1999/12/29 04:38:37 peter Exp $
31  * $DragonFly: src/sys/net/raw_cb.h,v 1.6 2006/05/20 02:42:08 dillon Exp $
32  */
33 
34 #ifndef _NET_RAW_CB_H_
35 #define _NET_RAW_CB_H_
36 
37 #ifndef _SYS_QUEUE_H_
38 #include <sys/queue.h>
39 #endif
40 #ifndef _SYS_RESOURCE_H_
41 #include <sys/resource.h>
42 #endif
43 #ifndef _SYS_MBUF_H_
44 #include <sys/mbuf.h>
45 #endif
46 #ifndef _SYS_SOCKET_H_
47 #include <sys/socket.h>
48 #endif
49 
50 /*
51  * Raw protocol interface control block.  Used
52  * to tie a socket to the generic raw interface.
53  */
54 struct rawcb {
55 	LIST_ENTRY(rawcb)	list;
56 	struct socket		*rcb_socket;	/* back pointer to socket */
57 	const struct sockaddr	*rcb_faddr;	/* destination address */
58 	struct sockaddr		*rcb_laddr;	/* socket's address */
59 	struct sockproto	rcb_proto;	/* protocol family, protocol */
60 	int	(*rcb_filter)(struct mbuf *, const struct sockproto *,
61 			      const struct rawcb *);
62 };
63 
64 #define	sotorawcb(so)		((struct rawcb *)(so)->so_pcb)
65 
66 /*
67  * Nominal space allocated to a raw socket.
68  */
69 #define	RAWSNDQ		8192
70 #define	RAWRCVQ		8192
71 
72 #ifdef _KERNEL
73 extern LIST_HEAD(rawcb_list_head, rawcb) rawcb_list;
74 
75 union netmsg;
76 
77 int	 raw_attach (struct socket *, int, struct rlimit *);
78 void	 raw_ctlinput (union netmsg *);
79 void	 raw_detach (struct rawcb *);
80 void	 raw_disconnect (struct rawcb *);
81 void	 raw_init (void);
82 void	 raw_input (struct mbuf *, const struct sockproto *,
83 		    const struct sockaddr *, const struct sockaddr *,
84 		    const struct rawcb *);
85 
86 extern	struct pr_usrreqs raw_usrreqs;
87 #endif
88 
89 #endif
90