contrib/tcpdump-3.9/l2tp.h

   1 /* @(#) $Header: /tcpdump/master/tcpdump/l2tp.h,v 1.5 2001/11/05 10:03:27 guy Exp $ (LBL) */
   2 /*
   3  * Copyright (c) 1991, 1993, 1994, 1995, 1996, 1997
   4  *      The Regents of the University of California.  All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that: (1) source code distributions
   8  * retain the above copyright notice and this paragraph in its entirety, (2)
   9  * distributions including binary code include the above copyright notice and
  10  * this paragraph in its entirety in the documentation or other materials
  11  * provided with the distribution, and (3) all advertising materials mentioning
  12  * features or use of this software display the following acknowledgement:
  13  * ``This product includes software developed by the University of California,
  14  * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
  15  * the University nor the names of its contributors may be used to endorse
  16  * or promote products derived from this software without specific prior
  17  * written permission.
  18  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
  19  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
  20  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  21  *
  22  * L2TP support contributed by Motonori Shindo (mshindo@mshindo.net)
  23  */
  24
  25
  26 #define L2TP_FLAG_TYPE          0x8000  /* Type (0=Data, 1=Control) */
  27 #define L2TP_FLAG_LENGTH        0x4000  /* Length */
  28 #define L2TP_FLAG_SEQUENCE      0x0800  /* Sequence */
  29 #define L2TP_FLAG_OFFSET        0x0200  /* Offset */
  30 #define L2TP_FLAG_PRIORITY      0x0100  /* Priority */
  31
  32 #define L2TP_VERSION_MASK       0x000f  /* Version Mask */
  33 #define L2TP_VERSION_L2F        0x0001  /* L2F */
  34 #define L2TP_VERSION_L2TP       0x0002  /* L2TP */
  35
  36 #define L2TP_AVP_HDR_FLAG_MANDATORY     0x8000  /* Mandatory Flag */
  37 #define L2TP_AVP_HDR_FLAG_HIDDEN        0x4000  /* Hidden Flag */
  38 #define L2TP_AVP_HDR_LEN_MASK           0x03ff  /* Length Mask */
  39
  40 #define L2TP_FRAMING_CAP_SYNC_MASK      0x00000001      /* Synchronous */
  41 #define L2TP_FRAMING_CAP_ASYNC_MASK     0x00000002      /* Asynchronous */
  42
  43 #define L2TP_FRAMING_TYPE_SYNC_MASK     0x00000001      /* Synchronous */
  44 #define L2TP_FRAMING_TYPE_ASYNC_MASK    0x00000002      /* Asynchronous */
  45
  46 #define L2TP_BEARER_CAP_DIGITAL_MASK    0x00000001      /* Digital */
  47 #define L2TP_BEARER_CAP_ANALOG_MASK     0x00000002      /* Analog */
  48
  49 #define L2TP_BEARER_TYPE_DIGITAL_MASK   0x00000001      /* Digital */
  50 #define L2TP_BEARER_TYPE_ANALOG_MASK    0x00000002      /* Analog */
  51
  52 /* Authen Type */
  53 #define L2TP_AUTHEN_TYPE_RESERVED       0x0000  /* Reserved */
  54 #define L2TP_AUTHEN_TYPE_TEXTUAL        0x0001  /* Textual username/password exchange */
  55 #define L2TP_AUTHEN_TYPE_CHAP           0x0002  /* PPP CHAP */
  56 #define L2TP_AUTHEN_TYPE_PAP            0x0003  /* PPP PAP */
  57 #define L2TP_AUTHEN_TYPE_NO_AUTH        0x0004  /* No Authentication */
  58 #define L2TP_AUTHEN_TYPE_MSCHAPv1       0x0005  /* MSCHAPv1 */
  59
  60 #define L2TP_PROXY_AUTH_ID_MASK         0x00ff
  61
  62