1/* $NetBSD: domain.h,v 1.35 2022/09/03 02:53:18 thorpej Exp $ */
2
3/*
4 * Copyright (c) 1982, 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 * @(#)domain.h 8.1 (Berkeley) 6/2/93
32 */
33
34#ifndef _SYS_DOMAIN_H_
35#define _SYS_DOMAIN_H_
36
37/*
38 * Structure per communications domain.
39 */
40#include <sys/mbuf.h>
41#include <sys/socket.h>
42#include <net/route.h>
43
44/*
45 * Forward structure declarations for function prototypes [sic].
46 */
47struct lwp;
48struct mbuf;
49struct ifnet;
50struct ifqueue;
51struct sockaddr;
52
53LIST_HEAD(dom_rtlist, route);
54
55struct domain {
56 int dom_family; /* AF_xxx */
57 const char *dom_name;
58 void (*dom_init) /* initialize domain data structures */
59 (void);
60 int (*dom_externalize) /* externalize access rights */
61 (struct mbuf *, struct lwp *, int);
62 void (*dom_dispose) /* dispose of internalized rights */
63 (struct mbuf *);
64 const struct protosw *dom_protosw, *dom_protoswNPROTOSW;
65 int (*dom_rtattach) /* initialize routing table */
66 (rtbl_t **, int);
67 int dom_rtoffset; /* an arg to rtattach, in bits */
68 int dom_maxrtkey; /* for routing layer */
69 void (*dom_if_up) /* ifnet brought up */
70 (struct ifnet *);
71 void (*dom_if_down) /* ifnet brought down */
72 (struct ifnet *);
73 void *(*dom_ifattach) /* attach af-dependent data on ifnet */
74 (struct ifnet *);
75 void (*dom_ifdetach) /* detach af-dependent data on ifnet */
76 (struct ifnet *, void *);
77 void (*dom_if_link_state_change)
78 (struct ifnet *, int);
79 const void *(*dom_sockaddr_const_addr)(const struct sockaddr *,
80 socklen_t *);
81 void *(*dom_sockaddr_addr)(struct sockaddr *, socklen_t *);
82 int (*dom_sockaddr_cmp)(const struct sockaddr *,
83 const struct sockaddr *);
84 struct sockaddr *(*dom_sockaddr_externalize)(struct sockaddr *,
85 socklen_t,
86 const struct sockaddr *);
87 const struct sockaddr *dom_sa_any;
88 struct ifqueue *dom_ifqueues[2]; /* XXX G/C ifqueue for domain */
89 STAILQ_ENTRY(domain) dom_link;
90 struct mowner dom_mowner;
91 uint_fast8_t dom_sa_cmpofs;
92 uint_fast8_t dom_sa_cmplen;
93};
94
95STAILQ_HEAD(domainhead,domain);
96
97#ifdef _KERNEL
98#define DOMAIN_DEFINE(name) \
99 extern struct domain name; \
100 __link_set_add_data(domains, name)
101
102#define DOMAIN_FOREACH(dom) STAILQ_FOREACH(dom, &domains, dom_link)
103extern struct domainhead domains;
104void domain_attach(struct domain *);
105void domaininit(bool);
106void domaininit_post(void);
107#endif
108
109#endif /* !_SYS_DOMAIN_H_ */