The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/sys/domain.h

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    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  * 4. 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: releng/8.3/sys/sys/domain.h 199583 2009-11-20 15:27:52Z jhb $
   31  */
   32 
   33 #ifndef _SYS_DOMAIN_H_
   34 #define _SYS_DOMAIN_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 
   46 struct domain {
   47         int     dom_family;             /* AF_xxx */
   48         char    *dom_name;
   49         void    (*dom_init)             /* initialize domain data structures */
   50                 (void);
   51         void    (*dom_destroy)          /* cleanup structures / state */
   52                 (void);
   53         int     (*dom_externalize)      /* externalize access rights */
   54                 (struct mbuf *, struct mbuf **);
   55         void    (*dom_dispose)          /* dispose of internalized rights */
   56                 (struct mbuf *);
   57         struct  protosw *dom_protosw, *dom_protoswNPROTOSW;
   58         struct  domain *dom_next;
   59         int     (*dom_rtattach)         /* initialize routing table */
   60                 (void **, int);
   61         int     (*dom_rtdetach)         /* clean up routing table */
   62                 (void **, int);
   63         int     dom_rtoffset;           /* an arg to rtattach, in bits */
   64                 /* XXX MRT.
   65                  * rtoffset May be 0 if the domain supplies its own rtattach(),
   66                  * in which case, a 0 indicates it's being called from 
   67                  * vfs_export.c (HACK)  Only for AF_INET{,6} at this time.
   68                  * Temporary ABI compat hack.. fix post RELENG_7
   69                  */
   70         int     dom_maxrtkey;           /* for routing layer */
   71         void    *(*dom_ifattach)(struct ifnet *);
   72         void    (*dom_ifdetach)(struct ifnet *, void *);
   73                                         /* af-dependent data on ifnet */
   74 };
   75 
   76 #ifdef _KERNEL
   77 extern int      domain_init_status;
   78 extern struct   domain *domains;
   79 void            domain_add(void *);
   80 void            domain_init(void *);
   81 #ifdef VIMAGE
   82 void            vnet_domain_init(void *);
   83 void            vnet_domain_uninit(void *);
   84 #endif
   85 
   86 #define DOMAIN_SET(name)                                                \
   87         SYSINIT(domain_add_ ## name, SI_SUB_PROTO_DOMAIN,               \
   88             SI_ORDER_FIRST, domain_add, & name ## domain);              \
   89         SYSINIT(domain_init_ ## name, SI_SUB_PROTO_DOMAIN,              \
   90             SI_ORDER_SECOND, domain_init, & name ## domain);
   91 #ifdef VIMAGE
   92 #define VNET_DOMAIN_SET(name)                                           \
   93         SYSINIT(domain_add_ ## name, SI_SUB_PROTO_DOMAIN,               \
   94             SI_ORDER_FIRST, domain_add, & name ## domain);              \
   95         VNET_SYSINIT(vnet_domain_init_ ## name, SI_SUB_PROTO_DOMAIN,    \
   96             SI_ORDER_SECOND, vnet_domain_init, & name ## domain);       \
   97         VNET_SYSUNINIT(vnet_domain_uninit_ ## name,                     \
   98             SI_SUB_PROTO_DOMAIN, SI_ORDER_SECOND, vnet_domain_uninit,   \
   99             & name ## domain)
  100 #else /* !VIMAGE */
  101 #define VNET_DOMAIN_SET(name)   DOMAIN_SET(name)
  102 #endif /* VIMAGE */
  103 
  104 #endif /* _KERNEL */
  105 
  106 #endif /* !_SYS_DOMAIN_H_ */

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