epan/ip_opts.h

   1 /* ip_opts.h
   2  * Definitions of structures and routines for dissection of options that
   3  * work like IPv4 options
   4  *
   5  * Wireshark - Network traffic analyzer
   6  * By Gerald Combs <gerald@wireshark.org>
   7  * Copyright 1998 Gerald Combs
   8  *
   9  * SPDX-License-Identifier: GPL-2.0-or-later
  10  */
  11
  12 #ifndef __IP_OPTS_H__
  13 #define __IP_OPTS_H__
  14
  15 #include "ws_symbol_export.h"
  16
  17 /** @file
  18  */
  19
  20 typedef enum {
  21   OPT_LEN_NO_LENGTH,                /**< option has no data, hence no length */
  22   OPT_LEN_FIXED_LENGTH,             /**< option always has the same length */
  23   OPT_LEN_VARIABLE_LENGTH           /**< option is variable-length - optlen is minimum */
  24 } opt_len_type;
  25
  26
  27
  28 /* Quick-Start option, as defined by RFC4782 */
  29 #define QS_FUNC_MASK        0xf0
  30 #define QS_RATE_MASK        0x0f
  31 #define QS_RATE_REQUEST     0
  32 #define QS_RATE_REPORT      8
  33
  34 /* IP options */
  35 #define IPOPT_COPY_MASK         0x80
  36 #define IPOPT_CLASS_MASK        0x60
  37 #define IPOPT_NUMBER_MASK       0x1F
  38
  39 WS_DLL_PUBLIC const value_string qs_func_vals[];
  40 WS_DLL_PUBLIC value_string_ext qs_rate_vals_ext;
  41
  42 WS_DLL_PUBLIC const value_string ipopt_type_class_vals[];
  43 WS_DLL_PUBLIC const value_string ipopt_type_number_vals[];
  44
  45 #endif