FreeBSD/Linux Kernel Cross Reference
sys/sys/domain.h
1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
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 * $FreeBSD$
33 */
34
35 #ifndef _SYS_DOMAIN_H_
36 #define _SYS_DOMAIN_H_
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 struct socket;
49 struct rib_head;
50
51 struct domain {
52 SLIST_ENTRY(domain) dom_next;
53 int dom_family; /* AF_xxx */
54 u_int dom_nprotosw; /* length of dom_protosw[] */
55 char *dom_name;
56 int dom_flags;
57 int (*dom_probe)(void); /* check for support (optional) */
58 int (*dom_externalize) /* externalize access rights */
59 (struct mbuf *, struct mbuf **, int);
60 void (*dom_dispose) /* dispose of internalized rights */
61 (struct socket *);
62 struct rib_head *(*dom_rtattach) /* initialize routing table */
63 (uint32_t);
64 void (*dom_rtdetach) /* clean up routing table */
65 (struct rib_head *);
66 void *(*dom_ifattach)(struct ifnet *);
67 void (*dom_ifdetach)(struct ifnet *, void *);
68 int (*dom_ifmtu)(struct ifnet *);
69 /* af-dependent data on ifnet */
70 struct protosw *dom_protosw[];
71 };
72
73 /* dom_flags */
74 #define DOMF_UNLOADABLE 0x0004 /* Can be unloaded */
75
76 #ifdef _KERNEL
77 extern int domain_init_status;
78 extern SLIST_HEAD(domainhead, domain) domains;
79 void domain_add(struct domain *);
80 void domain_remove(struct domain *);
81 #ifdef VIMAGE
82 void vnet_domain_init(void *);
83 void vnet_domain_uninit(void *);
84 #endif
85
86 #define DOMAIN_SET(name) \
87 SYSINIT(domain_add_ ## name, SI_SUB_PROTO_DOMAIN, \
88 SI_ORDER_FIRST, domain_add, & name ## domain); \
89 SYSUNINIT(domain_remove_ ## name, SI_SUB_PROTO_DOMAIN, \
90 SI_ORDER_FIRST, domain_remove, & name ## domain);
91 #endif /* _KERNEL */
92
93 #endif /* !_SYS_DOMAIN_H_ */
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