xref: /dragonfly/sys/sys/domain.h (revision 65cc0652)
1 /*
2  * Copyright (c) 1982, 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  *	@(#)domain.h	8.1 (Berkeley) 6/2/93
30  * $FreeBSD: src/sys/sys/domain.h,v 1.14 1999/12/29 04:24:40 peter Exp $
31  * $DragonFly: src/sys/sys/domain.h,v 1.6 2005/03/04 02:21:49 hsu Exp $
32  */
33 
34 #ifndef _SYS_DOMAIN_H_
35 #define _SYS_DOMAIN_H_
36 
37 #include <sys/queue.h>
38 
39 /*
40  * Structure per communications domain.
41  */
42 
43 /*
44  * Forward structure declarations for function prototypes [sic].
45  */
46 struct	mbuf;
47 struct	ifnet;
48 
49 SLIST_HEAD(domainlist, domain);
50 
51 struct	domain {
52 	int	dom_family;		/* AF_xxx */
53 	char	*dom_name;
54 	void	(*dom_init)(void);	/* initialize domain data structures */
55 	int	(*dom_externalize)(struct mbuf *, int);	/* externalize access
56 							 * rights */
57 	void	(*dom_dispose)(struct mbuf *);	/* dispose of internalized
58 						 * rights */
59 	struct	protosw *dom_protosw;
60 	struct	protosw *dom_protoswNPROTOSW;
61 	SLIST_ENTRY(domain) dom_next;
62 	int	(*dom_rtattach)(void **, int);	/* initialize routing table */
63 	int	dom_rtoffset;		/* an arg to rtattach, in bits */
64 	int	dom_maxrtkey;		/* for routing layer */
65 	void	*(*dom_ifattach)(struct ifnet *);
66 	void	(*dom_ifdetach)(struct ifnet *, void *);
67 					/* af-dependent data on ifnet */
68 };
69 
70 #ifdef _KERNEL
71 extern struct domainlist domains;
72 extern struct domain	 localdomain;
73 
74 extern void		net_add_domain(void *);
75 
76 #define DOMAIN_SET(name) \
77 	SYSINIT(domain_ ## name, SI_SUB_PROTO_DOMAIN, SI_ORDER_SECOND, net_add_domain, & name ## domain)
78 
79 #endif
80 
81 #endif
82