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  * $FreeBSD$
   33  */
   34 
   35 #ifndef _SYS_DOMAIN_H_
   36 #define _SYS_DOMAIN_H_
   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 struct  socket;
   49 struct  rib_head;
   50 
   51 struct domain {
   52         SLIST_ENTRY(domain) dom_next;
   53         int     dom_family;             /* AF_xxx */
   54         u_int   dom_nprotosw;           /* length of dom_protosw[] */
   55         char    *dom_name;
   56         int     dom_flags;
   57         int     (*dom_probe)(void);     /* check for support (optional) */
   58         int     (*dom_externalize)      /* externalize access rights */
   59                 (struct mbuf *, struct mbuf **, int);
   60         void    (*dom_dispose)          /* dispose of internalized rights */
   61                 (struct socket *);
   62         struct rib_head *(*dom_rtattach)        /* initialize routing table */
   63                 (uint32_t);
   64         void    (*dom_rtdetach)         /* clean up routing table */
   65                 (struct rib_head *);
   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         struct  protosw *dom_protosw[];
   71 };
   72 
   73 /* dom_flags */
   74 #define DOMF_UNLOADABLE 0x0004  /* Can be unloaded */
   75 
   76 #ifdef _KERNEL
   77 extern int      domain_init_status;
   78 extern SLIST_HEAD(domainhead, domain) domains;
   79 void            domain_add(struct domain *);
   80 void            domain_remove(struct domain *);
   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         SYSUNINIT(domain_remove_ ## name, SI_SUB_PROTO_DOMAIN,          \
   90             SI_ORDER_FIRST, domain_remove, & name ## domain);
   91 #endif /* _KERNEL */
   92 
   93 #endif /* !_SYS_DOMAIN_H_ */

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