domain.h

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    1 /*      $NetBSD: domain.h,v 1.27 2007/09/19 04:33:45 dyoung Exp $       */
    2 
    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 
   37 /*
   38  * Structure per communications domain.
   39  */
   40 #include <sys/mbuf.h>
   41 #include <sys/socket.h>
   42 
   43 /*
   44  * Forward structure declarations for function prototypes [sic].
   45  */
   46 struct  lwp;
   47 struct  mbuf;
   48 struct  ifnet;
   49 struct  ifqueue;
   50 struct  route;
   51 struct  sockaddr;
   52 
   53 LIST_HEAD(dom_rtlist, route);
   54 
   55 struct  domain {
   56         int     dom_family;             /* AF_xxx */
   57         const char *dom_name;
   58         void    (*dom_init)             /* initialize domain data structures */
   59                         (void);
   60         int     (*dom_externalize)      /* externalize access rights */
   61                         (struct mbuf *, struct lwp *);
   62         void    (*dom_dispose)          /* dispose of internalized rights */
   63                         (struct mbuf *);
   64         const struct protosw *dom_protosw, *dom_protoswNPROTOSW;
   65         int     (*dom_rtattach)         /* initialize routing table */
   66                         (void **, int);
   67         int     dom_rtoffset;           /* an arg to rtattach, in bits */
   68         int     dom_maxrtkey;           /* for routing layer */
   69         void    *(*dom_ifattach)        /* attach af-dependent data on ifnet */
   70                         (struct ifnet *);
   71         void    (*dom_ifdetach)         /* detach af-dependent data on ifnet */
   72                         (struct ifnet *, void *);
   73         const void *(*dom_sockaddr_const_addr)(const struct sockaddr *,
   74                                                socklen_t *);
   75         void    *(*dom_sockaddr_addr)(struct sockaddr *, socklen_t *);
   76         int     (*dom_sockaddr_cmp)(const struct sockaddr *,
   77                                     const struct sockaddr *);
   78         const struct sockaddr *dom_sa_any;
   79         struct ifqueue *dom_ifqueues[2]; /* ifqueue for domain */
   80         STAILQ_ENTRY(domain) dom_link;
   81         struct  mowner dom_mowner;
   82         uint_fast8_t    dom_sa_cmpofs;
   83         uint_fast8_t    dom_sa_cmplen;
   84         struct dom_rtlist dom_rtcache;
   85 };
   86 
   87 STAILQ_HEAD(domainhead,domain);
   88 
   89 #ifdef _KERNEL
   90 #define DOMAIN_DEFINE(name)     \
   91         extern struct domain name; \
   92         __link_set_add_data(domains, name)
   93 
   94 #define DOMAIN_FOREACH(dom)     STAILQ_FOREACH(dom, &domains, dom_link)
   95 extern struct domainhead domains;
   96 void domain_attach(struct domain *);
   97 void domaininit(void);
   98 #endif
   99 
  100 #endif /* !_SYS_DOMAIN_H_ */

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sys/sys/domain.h