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/net/raw_cb.h

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    1 /*-
    2  * Copyright (c) 1980, 1986, 1993
    3  *      The Regents of the University of California.
    4  * All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  * 4. Neither the name of the University nor the names of its contributors
   15  *    may be used to endorse or promote products derived from this software
   16  *    without specific prior written permission.
   17  *
   18  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   28  * SUCH DAMAGE.
   29  *
   30  *      @(#)raw_cb.h    8.1 (Berkeley) 6/10/93
   31  * $FreeBSD: releng/11.0/sys/net/raw_cb.h 225837 2011-09-28 13:48:36Z bz $
   32  */
   33 
   34 #ifndef _NET_RAW_CB_H_
   35 #define _NET_RAW_CB_H_
   36 
   37 #include <sys/queue.h>
   38 
   39 /*
   40  * Raw protocol interface control block.  Used to tie a socket to the generic
   41  * raw interface.
   42  */
   43 struct rawcb {
   44         LIST_ENTRY(rawcb) list;
   45         struct  socket *rcb_socket;     /* back pointer to socket */
   46         struct  sockproto rcb_proto;    /* protocol family, protocol */
   47 };
   48 
   49 #define sotorawcb(so)           ((struct rawcb *)(so)->so_pcb)
   50 
   51 /*
   52  * Nominal space allocated to a raw socket.
   53  */
   54 #define RAWSNDQ         8192
   55 #define RAWRCVQ         8192
   56 
   57 #ifdef _KERNEL
   58 VNET_DECLARE(LIST_HEAD(rawcb_list_head, rawcb), rawcb_list);
   59 #define V_rawcb_list    VNET(rawcb_list)
   60 
   61 extern struct mtx rawcb_mtx;
   62 
   63 /*
   64  * Generic protosw entries for raw socket protocols.
   65  */
   66 pr_ctlinput_t   raw_ctlinput;
   67 pr_init_t       raw_init;
   68 
   69 /*
   70  * Library routines for raw socket usrreq functions; will always be wrapped
   71  * so that protocol-specific functions can be handled.
   72  */
   73 typedef int (*raw_input_cb_fn)(struct mbuf *, struct sockproto *,
   74     struct sockaddr *, struct rawcb *);
   75 
   76 int      raw_attach(struct socket *, int);
   77 void     raw_detach(struct rawcb *);
   78 void     raw_input(struct mbuf *, struct sockproto *, struct sockaddr *);
   79 void     raw_input_ext(struct mbuf *, struct sockproto *, struct sockaddr *,
   80             raw_input_cb_fn);
   81 
   82 /*
   83  * Generic pr_usrreqs entries for raw socket protocols, usually wrapped so
   84  * that protocol-specific functions can be handled.
   85  */
   86 extern  struct pr_usrreqs raw_usrreqs;
   87 #endif
   88 
   89 #endif

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