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  * 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  *      @(#)domain.h    8.1 (Berkeley) 6/2/93
   32  * $FreeBSD: head/sys/sys/domain.h 326023 2017-11-20 19:43:44Z pfg $
   33  */
   34 
   35 #ifndef _SYS_DOMAIN_H_
   36 #define _SYS_DOMAIN_H_
   37 
   38 /*
   39  * Structure per communications domain.
   40  */
   41 
   42 /*
   43  * Forward structure declarations for function prototypes [sic].
   44  */
   45 struct  mbuf;
   46 struct  ifnet;
   47 struct  socket;
   48 
   49 struct domain {
   50         int     dom_family;             /* AF_xxx */
   51         char    *dom_name;
   52         void    (*dom_init)             /* initialize domain data structures */
   53                 (void);
   54         void    (*dom_destroy)          /* cleanup structures / state */
   55                 (void);
   56         int     (*dom_externalize)      /* externalize access rights */
   57                 (struct mbuf *, struct mbuf **, int);
   58         void    (*dom_dispose)          /* dispose of internalized rights */
   59                 (struct socket *);
   60         struct  protosw *dom_protosw, *dom_protoswNPROTOSW;
   61         struct  domain *dom_next;
   62         int     (*dom_rtattach)         /* initialize routing table */
   63                 (void **, int);
   64         int     (*dom_rtdetach)         /* clean up routing table */
   65                 (void **, int);
   66         void    *(*dom_ifattach)(struct ifnet *);
   67         void    (*dom_ifdetach)(struct ifnet *, void *);
   68         int     (*dom_ifmtu)(struct ifnet *);
   69                                         /* af-dependent data on ifnet */
   70 };
   71 
   72 #ifdef _KERNEL
   73 extern int      domain_init_status;
   74 extern struct   domain *domains;
   75 void            domain_add(void *);
   76 void            domain_init(void *);
   77 #ifdef VIMAGE
   78 void            vnet_domain_init(void *);
   79 void            vnet_domain_uninit(void *);
   80 #endif
   81 
   82 #define DOMAIN_SET(name)                                                \
   83         SYSINIT(domain_add_ ## name, SI_SUB_PROTO_DOMAIN,               \
   84             SI_ORDER_FIRST, domain_add, & name ## domain);              \
   85         SYSINIT(domain_init_ ## name, SI_SUB_PROTO_DOMAIN,              \
   86             SI_ORDER_SECOND, domain_init, & name ## domain);
   87 #ifdef VIMAGE
   88 #define VNET_DOMAIN_SET(name)                                           \
   89         SYSINIT(domain_add_ ## name, SI_SUB_PROTO_DOMAIN,               \
   90             SI_ORDER_FIRST, domain_add, & name ## domain);              \
   91         VNET_SYSINIT(vnet_domain_init_ ## name, SI_SUB_PROTO_DOMAIN,    \
   92             SI_ORDER_SECOND, vnet_domain_init, & name ## domain);       \
   93         VNET_SYSUNINIT(vnet_domain_uninit_ ## name,                     \
   94             SI_SUB_PROTO_DOMAIN, SI_ORDER_SECOND, vnet_domain_uninit,   \
   95             & name ## domain)
   96 #else /* !VIMAGE */
   97 #define VNET_DOMAIN_SET(name)   DOMAIN_SET(name)
   98 #endif /* VIMAGE */
   99 
  100 #endif /* _KERNEL */
  101 
  102 #endif /* !_SYS_DOMAIN_H_ */

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