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 * 4. 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: stable/10/sys/sys/domain.h 305261 2016-09-02 00:14:28Z markj $ 31 */ 32 33 #ifndef _SYS_DOMAIN_H_ 34 #define _SYS_DOMAIN_H_ 35 36 /* 37 * Structure per communications domain. 38 */ 39 40 /* 41 * Forward structure declarations for function prototypes [sic]. 42 */ 43 struct mbuf; 44 struct ifnet; 45 struct socket; 46 47 struct domain { 48 int dom_family; /* AF_xxx */ 49 char *dom_name; 50 void (*dom_init) /* initialize domain data structures */ 51 (void); 52 void (*dom_destroy) /* cleanup structures / state */ 53 (void); 54 int (*dom_externalize) /* externalize access rights */ 55 (struct mbuf *, struct mbuf **, int); 56 void (*dom_dispose) /* dispose of internalized rights */ 57 (struct mbuf *); 58 struct protosw *dom_protosw, *dom_protoswNPROTOSW; 59 struct domain *dom_next; 60 int (*dom_rtattach) /* initialize routing table */ 61 (void **, int); 62 int (*dom_rtdetach) /* clean up routing table */ 63 (void **, int); 64 int dom_rtoffset; /* an arg to rtattach, in bits */ 65 /* XXX MRT. 66 * rtoffset May be 0 if the domain supplies its own rtattach(), 67 * in which case, a 0 indicates it's being called from 68 * vfs_export.c (HACK) Only for AF_INET{,6} at this time. 69 * Temporary ABI compat hack.. fix post RELENG_7 70 */ 71 int dom_maxrtkey; /* for routing layer */ 72 void *(*dom_ifattach)(struct ifnet *); 73 void (*dom_ifdetach)(struct ifnet *, void *); 74 /* af-dependent data on ifnet */ 75 }; 76 77 #ifdef _KERNEL 78 extern int domain_init_status; 79 extern struct domain *domains; 80 void domain_add(void *); 81 void domain_init(void *); 82 83 /* Hack to fix dom_dispose for unix domain sockets. */ 84 void unp_dispose_so(struct socket *); 85 #ifdef VIMAGE 86 void vnet_domain_init(void *); 87 void vnet_domain_uninit(void *); 88 #endif 89 90 #define DOMAIN_SET(name) \ 91 SYSINIT(domain_add_ ## name, SI_SUB_PROTO_DOMAIN, \ 92 SI_ORDER_FIRST, domain_add, & name ## domain); \ 93 SYSINIT(domain_init_ ## name, SI_SUB_PROTO_DOMAIN, \ 94 SI_ORDER_SECOND, domain_init, & name ## domain); 95 #ifdef VIMAGE 96 #define VNET_DOMAIN_SET(name) \ 97 SYSINIT(domain_add_ ## name, SI_SUB_PROTO_DOMAIN, \ 98 SI_ORDER_FIRST, domain_add, & name ## domain); \ 99 VNET_SYSINIT(vnet_domain_init_ ## name, SI_SUB_PROTO_DOMAIN, \ 100 SI_ORDER_SECOND, vnet_domain_init, & name ## domain); \ 101 VNET_SYSUNINIT(vnet_domain_uninit_ ## name, \ 102 SI_SUB_PROTO_DOMAIN, SI_ORDER_SECOND, vnet_domain_uninit, \ 103 & name ## domain) 104 #else /* !VIMAGE */ 105 #define VNET_DOMAIN_SET(name) DOMAIN_SET(name) 106 #endif /* VIMAGE */ 107 108 #endif /* _KERNEL */ 109 110 #endif /* !_SYS_DOMAIN_H_ */ 111