1 /* $NetBSD: domain.h,v 1.32 2015/04/22 19:46:08 roy 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 */ 47 struct lwp; 48 struct mbuf; 49 struct ifnet; 50 struct ifqueue; 51 struct sockaddr; 52 53 LIST_HEAD(dom_rtlist, route); 54 55 struct 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]; /* 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 struct dom_rtlist dom_rtcache; 94 }; 95 96 STAILQ_HEAD(domainhead,domain); 97 98 #ifdef _KERNEL 99 #define DOMAIN_DEFINE(name) \ 100 extern struct domain name; \ 101 __link_set_add_data(domains, name) 102 103 #define DOMAIN_FOREACH(dom) STAILQ_FOREACH(dom, &domains, dom_link) 104 extern struct domainhead domains; 105 void domain_attach(struct domain *); 106 void domaininit(bool); 107 #endif 108 109 #endif /* !_SYS_DOMAIN_H_ */ 110