FreeBSD/Linux Kernel Cross Reference
sys/net/dlt.h

     /*      $NetBSD: dlt.h,v 1.7 2003/11/16 09:02:42 dyoung Exp $   */
     
     /*
      * Copyright (c) 1990, 1991, 1993
      *      The Regents of the University of California.  All rights reserved.
      *
      * This code is derived from the Stanford/CMU enet packet filter,
      * (net/enet.c) distributed as part of 4.3BSD, and code contributed
      * to Berkeley by Steven McCanne and Van Jacobson both of Lawrence
     * Berkeley Laboratory.
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. Neither the name of the University nor the names of its contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     *      @(#)bpf.h       8.2 (Berkeley) 1/9/95
     * @(#) Header: bpf.h,v 1.36 97/06/12 14:29:53 leres Exp  (LBL)
     */
    
    #ifndef _NET_DLT_H_
    #define _NET_DLT_H_
    
    /*
     * Data-link level type codes.
     */
    #define DLT_NULL        0       /* no link-layer encapsulation */
    #define DLT_EN10MB      1       /* Ethernet (10Mb) */
    #define DLT_EN3MB       2       /* Experimental Ethernet (3Mb) */
    #define DLT_AX25        3       /* Amateur Radio AX.25 */
    #define DLT_PRONET      4       /* Proteon ProNET Token Ring */
    #define DLT_CHAOS       5       /* Chaos */
    #define DLT_IEEE802     6       /* IEEE 802 Networks */
    #define DLT_ARCNET      7       /* ARCNET */
    #define DLT_SLIP        8       /* Serial Line IP */
    #define DLT_PPP         9       /* Point-to-point Protocol */
    #define DLT_FDDI        10      /* FDDI */
    #define DLT_ATM_RFC1483 11      /* LLC/SNAP encapsulated atm */
    #define DLT_RAW         12      /* raw IP */
    #define DLT_SLIP_BSDOS  13      /* BSD/OS Serial Line IP */
    #define DLT_PPP_BSDOS   14      /* BSD/OS Point-to-point Protocol */
    #define DLT_HIPPI       15      /* HIPPI */
    #define DLT_HDLC        16      /* HDLC framing */
    
    /* NetBSD-specific types */
    #define DLT_PPP_SERIAL  50      /* PPP over serial (async and sync) */
    #define DLT_PPP_ETHER   51      /* XXX - deprecated! PPP over Ethernet; session only, w/o ether header */
    
    #define DLT_IEEE802_11          105     /* IEEE 802.11 wireless */
    #define DLT_ECONET              115     /* Acorn Econet */
    #define DLT_PRISM_HEADER        119     /* 802.11 header plus Prism II info. */
    #define DLT_AIRONET_HEADER      120     /* 802.11 header plus Aironet info. */
    #define DLT_IEEE802_11_RADIO    127     /* 802.11 header plus radio info. */
    
    /*
     * NetBSD-specific generic "raw" link type.  The upper 16-bits indicate
     * that this is the generic raw type, and the lower 16-bits are the
     * address family we're dealing with.
     */
    #define DLT_RAWAF_MASK          0x02240000
    #define DLT_RAWAF(af)           (DLT_RAWAF_MASK | (af))
    #define DLT_RAWAF_AF(x)         ((x) & 0x0000ffff)
    #define DLT_IS_RAWAF(x)         (((x) & 0xffff0000) == DLT_RAWAF_MASK)
    
    #endif /* _NET_DLT_H_ */

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