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 */ 33 34 #ifndef _SYS_DOMAIN_H_ 35 #define _SYS_DOMAIN_H_ 36 #include <sys/queue.h> 37 38 /* 39 * Structure per communications domain. 40 */ 41 42 /* 43 * Forward structure declarations for function prototypes [sic]. 44 */ 45 struct mbuf; 46 struct ifnet; 47 struct socket; 48 struct rib_head; 49 50 struct domain { 51 SLIST_ENTRY(domain) dom_next; 52 int dom_family; /* AF_xxx */ 53 u_int dom_nprotosw; /* length of dom_protosw[] */ 54 char *dom_name; 55 int dom_flags; 56 int (*dom_probe)(void); /* check for support (optional) */ 57 int (*dom_externalize) /* externalize access rights */ 58 (struct mbuf *, struct mbuf **, int); 59 void (*dom_dispose) /* dispose of internalized rights */ 60 (struct socket *); 61 struct rib_head *(*dom_rtattach) /* initialize routing table */ 62 (uint32_t); 63 void (*dom_rtdetach) /* clean up routing table */ 64 (struct rib_head *); 65 void *(*dom_ifattach)(struct ifnet *); 66 void (*dom_ifdetach)(struct ifnet *, void *); 67 int (*dom_ifmtu)(struct ifnet *); 68 /* af-dependent data on ifnet */ 69 struct protosw *dom_protosw[]; 70 }; 71 72 /* dom_flags */ 73 #define DOMF_UNLOADABLE 0x0004 /* Can be unloaded */ 74 75 #ifdef _KERNEL 76 extern int domain_init_status; 77 extern SLIST_HEAD(domainhead, domain) domains; 78 void domain_add(struct domain *); 79 void domain_remove(struct domain *); 80 #ifdef VIMAGE 81 void vnet_domain_init(void *); 82 void vnet_domain_uninit(void *); 83 #endif 84 85 #define DOMAIN_SET(name) \ 86 SYSINIT(domain_add_ ## name, SI_SUB_PROTO_DOMAIN, \ 87 SI_ORDER_FIRST, domain_add, & name ## domain); \ 88 SYSUNINIT(domain_remove_ ## name, SI_SUB_PROTO_DOMAIN, \ 89 SI_ORDER_FIRST, domain_remove, & name ## domain); 90 #endif /* _KERNEL */ 91 92 #endif /* !_SYS_DOMAIN_H_ */ 93