sys/sys/domain.h

   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  * 3. 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: src/sys/sys/domain.h,v 1.14 1999/12/29 04:24:40 peter Exp $
  31  * $DragonFly: src/sys/sys/domain.h,v 1.6 2005/03/04 02:21:49 hsu Exp $
  32  */
  33
  34 #ifndef _SYS_DOMAIN_H_
  35 #define _SYS_DOMAIN_H_
  36
  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
  49 SLIST_HEAD(domainlist, domain);
  50
  51 struct  domain {
  52         int     dom_family;             /* AF_xxx */
  53         char    *dom_name;
  54         void    (*dom_init)(void);      /* initialize domain data structures */
  55         int     (*dom_externalize)(struct mbuf *, int); /* externalize access
  56                                                          * rights */
  57         void    (*dom_dispose)(struct mbuf *);  /* dispose of internalized
  58                                                  * rights */
  59         struct  protosw *dom_protosw;
  60         struct  protosw *dom_protoswNPROTOSW;
  61         SLIST_ENTRY(domain) dom_next;
  62         int     (*dom_rtattach)(void **, int);  /* initialize routing table */
  63         int     dom_rtoffset;           /* an arg to rtattach, in bits */
  64         int     dom_maxrtkey;           /* for routing layer */
  65         void    *(*dom_ifattach)(struct ifnet *);
  66         void    (*dom_ifdetach)(struct ifnet *, void *);
  67                                         /* af-dependent data on ifnet */
  68 };
  69
  70 #ifdef _KERNEL
  71 extern struct domainlist domains;
  72 extern struct domain     localdomain;
  73
  74 extern void             net_add_domain(void *);
  75
  76 #define DOMAIN_SET(name) \
  77         SYSINIT(domain_ ## name, SI_SUB_PROTO_DOMAIN, SI_ORDER_SECOND, net_add_domain, & name ## domain)
  78
  79 #endif
  80
  81 #endif