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 32 #ifndef _SYS_DOMAIN_H_ 33 #define _SYS_DOMAIN_H_ 34 #include <sys/queue.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 struct rib_head; 47 48 struct domain { 49 SLIST_ENTRY(domain) dom_next; 50 int dom_family; /* AF_xxx */ 51 u_int dom_nprotosw; /* length of dom_protosw[] */ 52 char *dom_name; 53 int dom_flags; 54 int (*dom_probe)(void); /* check for support (optional) */ 55 struct rib_head *(*dom_rtattach) /* initialize routing table */ 56 (uint32_t); 57 void (*dom_rtdetach) /* clean up routing table */ 58 (struct rib_head *); 59 void *(*dom_ifattach)(struct ifnet *); 60 void (*dom_ifdetach)(struct ifnet *, void *); 61 int (*dom_ifmtu)(struct ifnet *); 62 /* af-dependent data on ifnet */ 63 struct protosw *dom_protosw[]; 64 }; 65 66 /* dom_flags */ 67 #define DOMF_UNLOADABLE 0x0004 /* Can be unloaded */ 68 69 #ifdef _KERNEL 70 extern int domain_init_status; 71 extern SLIST_HEAD(domainhead, domain) domains; 72 void domain_add(struct domain *); 73 void domain_remove(struct domain *); 74 #ifdef VIMAGE 75 void vnet_domain_init(void *); 76 void vnet_domain_uninit(void *); 77 #endif 78 79 #define DOMAIN_SET(name) \ 80 SYSINIT(domain_add_ ## name, SI_SUB_PROTO_DOMAIN, \ 81 SI_ORDER_FIRST, domain_add, & name ## domain); \ 82 SYSUNINIT(domain_remove_ ## name, SI_SUB_PROTO_DOMAIN, \ 83 SI_ORDER_FIRST, domain_remove, & name ## domain); 84 #endif /* _KERNEL */ 85 86 #endif /* !_SYS_DOMAIN_H_ */ 87