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. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  *
  33  *      @(#)domain.h    8.1 (Berkeley) 6/2/93
  34  * $FreeBSD: src/sys/sys/domain.h,v 1.14 1999/12/29 04:24:40 peter Exp $
  35  * $DragonFly: src/sys/sys/domain.h,v 1.6 2005/03/04 02:21:49 hsu Exp $
  36  */
  37
  38 #ifndef _SYS_DOMAIN_H_
  39 #define _SYS_DOMAIN_H_
  40
  41 #include <sys/queue.h>
  42
  43 /*
  44  * Structure per communications domain.
  45  */
  46
  47 /*
  48  * Forward structure declarations for function prototypes [sic].
  49  */
  50 struct  mbuf;
  51 struct  ifnet;
  52
  53 SLIST_HEAD(domainlist, domain);
  54
  55 struct  domain {
  56         int     dom_family;             /* AF_xxx */
  57         char    *dom_name;
  58         void    (*dom_init)(void);      /* initialize domain data structures */
  59         int     (*dom_externalize)(struct mbuf *);      /* externalize access
  60                                                          * rights */
  61         void    (*dom_dispose)(struct mbuf *);  /* dispose of internalized
  62                                                  * rights */
  63         struct  protosw *dom_protosw;
  64         struct  protosw *dom_protoswNPROTOSW;
  65         SLIST_ENTRY(domain) dom_next;
  66         int     (*dom_rtattach)(void **, int);  /* initialize routing table */
  67         int     dom_rtoffset;           /* an arg to rtattach, in bits */
  68         int     dom_maxrtkey;           /* for routing layer */
  69         void    *(*dom_ifattach)(struct ifnet *);
  70         void    (*dom_ifdetach)(struct ifnet *, void *);
  71                                         /* af-dependent data on ifnet */
  72 };
  73
  74 #ifdef _KERNEL
  75 extern struct domainlist domains;
  76 extern struct domain     localdomain;
  77
  78 extern void             net_add_domain(void *);
  79
  80 #define DOMAIN_SET(name) \
  81         SYSINIT(domain_ ## name, SI_SUB_PROTO_DOMAIN, SI_ORDER_SECOND, net_add_domain, & name ## domain)
  82
  83 #endif
  84
  85 #endif