sys/net/raw_cb.h

   1 /*
   2  * Copyright (c) 1980, 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  * 3. 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  *      @(#)raw_cb.h    8.1 (Berkeley) 6/10/93
  30  * $FreeBSD: src/sys/net/raw_cb.h,v 1.12 1999/12/29 04:38:37 peter Exp $
  31  * $DragonFly: src/sys/net/raw_cb.h,v 1.6 2006/05/20 02:42:08 dillon Exp $
  32  */
  33
  34 #ifndef _NET_RAW_CB_H_
  35 #define _NET_RAW_CB_H_
  36
  37 #ifndef _SYS_QUEUE_H_
  38 #include <sys/queue.h>
  39 #endif
  40 #ifndef _SYS_RESOURCE_H_
  41 #include <sys/resource.h>
  42 #endif
  43 #ifndef _SYS_MBUF_H_
  44 #include <sys/mbuf.h>
  45 #endif
  46 #ifndef _SYS_SOCKET_H_
  47 #include <sys/socket.h>
  48 #endif
  49
  50 /*
  51  * Raw protocol interface control block.  Used
  52  * to tie a socket to the generic raw interface.
  53  */
  54 struct rawcb {
  55         LIST_ENTRY(rawcb)       list;
  56         struct socket           *rcb_socket;    /* back pointer to socket */
  57         const struct sockaddr   *rcb_faddr;     /* destination address */
  58         struct sockaddr         *rcb_laddr;     /* socket's address */
  59         struct sockproto        rcb_proto;      /* protocol family, protocol */
  60         int     (*rcb_filter)(struct mbuf *, const struct sockproto *,
  61                               const struct rawcb *);
  62 };
  63
  64 #define sotorawcb(so)           ((struct rawcb *)(so)->so_pcb)
  65
  66 /*
  67  * Nominal space allocated to a raw socket.
  68  */
  69 #define RAWSNDQ         8192
  70 #define RAWRCVQ         8192
  71
  72 #ifdef _KERNEL
  73 extern LIST_HEAD(rawcb_list_head, rawcb) rawcb_list;
  74
  75 union netmsg;
  76
  77 int      raw_attach (struct socket *, int, struct rlimit *);
  78 void     raw_ctlinput (union netmsg *);
  79 void     raw_detach (struct rawcb *);
  80 void     raw_disconnect (struct rawcb *);
  81 void     raw_init (void);
  82 void     raw_input (struct mbuf *, const struct sockproto *,
  83                     const struct sockaddr *, const struct sockaddr *,
  84                     const struct rawcb *);
  85
  86 extern  struct pr_usrreqs raw_usrreqs;
  87 #endif
  88
  89 #endif