openvpn/tap-win32/common.h

   1 /*
   2  *  TAP-Win32 -- A kernel driver to provide virtual tap device functionality
   3  *               on Windows.  Originally derived from the CIPE-Win32
   4  *               project by Damion K. Wilson, with extensive modifications by
   5  *               James Yonan.
   6  *
   7  *  All source code which derives from the CIPE-Win32 project is
   8  *  Copyright (C) Damion K. Wilson, 2003, and is released under the
   9  *  GPL version 2 (see below).
  10  *
  11  *  All other source code is Copyright (C) 2002-2005 OpenVPN Solutions LLC,
  12  *  and is released under the GPL version 2 (see below).
  13  *
  14  *  This program is free software; you can redistribute it and/or modify
  15  *  it under the terms of the GNU General Public License version 2
  16  *  as published by the Free Software Foundation.
  17  *
  18  *  This program is distributed in the hope that it will be useful,
  19  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  *  GNU General Public License for more details.
  22  *
  23  *  You should have received a copy of the GNU General Public License
  24  *  along with this program (see the file COPYING included with this
  25  *  distribution); if not, write to the Free Software Foundation, Inc.,
  26  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  27  */
  28
  29 //===============================================
  30 // This file is included both by OpenVPN and
  31 // the TAP-Win32 driver and contains definitions
  32 // common to both.
  33 //===============================================
  34
  35 //=============
  36 // TAP IOCTLs
  37 //=============
  38
  39 #define TAP_CONTROL_CODE(request,method) \
  40   CTL_CODE (FILE_DEVICE_UNKNOWN, request, method, FILE_ANY_ACCESS)
  41
  42 // Present in 8.1
  43
  44 #define TAP_IOCTL_GET_MAC               TAP_CONTROL_CODE (1, METHOD_BUFFERED)
  45 #define TAP_IOCTL_GET_VERSION           TAP_CONTROL_CODE (2, METHOD_BUFFERED)
  46 #define TAP_IOCTL_GET_MTU               TAP_CONTROL_CODE (3, METHOD_BUFFERED)
  47 #define TAP_IOCTL_GET_INFO              TAP_CONTROL_CODE (4, METHOD_BUFFERED)
  48 #define TAP_IOCTL_CONFIG_POINT_TO_POINT TAP_CONTROL_CODE (5, METHOD_BUFFERED)
  49 #define TAP_IOCTL_SET_MEDIA_STATUS      TAP_CONTROL_CODE (6, METHOD_BUFFERED)
  50 #define TAP_IOCTL_CONFIG_DHCP_MASQ      TAP_CONTROL_CODE (7, METHOD_BUFFERED)
  51 #define TAP_IOCTL_GET_LOG_LINE          TAP_CONTROL_CODE (8, METHOD_BUFFERED)
  52 #define TAP_IOCTL_CONFIG_DHCP_SET_OPT   TAP_CONTROL_CODE (9, METHOD_BUFFERED)
  53
  54 // Added in 8.2
  55
  56 /* obsoletes TAP_IOCTL_CONFIG_POINT_TO_POINT */
  57 #define TAP_IOCTL_CONFIG_TUN            TAP_CONTROL_CODE (10, METHOD_BUFFERED)
  58
  59 //=================
  60 // Registry keys
  61 //=================
  62
  63 #define ADAPTER_KEY "SYSTEM\\CurrentControlSet\\Control\\Class\\{4D36E972-E325-11CE-BFC1-08002BE10318}"
  64
  65 #define NETWORK_CONNECTIONS_KEY "SYSTEM\\CurrentControlSet\\Control\\Network\\{4D36E972-E325-11CE-BFC1-08002BE10318}"
  66
  67 //======================
  68 // Filesystem prefixes
  69 //======================
  70
  71 #define USERMODEDEVICEDIR "\\\\.\\Global\\"
  72 #define SYSDEVICEDIR      "\\Device\\"
  73 #define USERDEVICEDIR     "\\DosDevices\\Global\\"
  74 #define TAPSUFFIX         ".tap"
  75
  76 //=========================================================
  77 // TAP_COMPONENT_ID -- This string defines the TAP driver
  78 // type -- different component IDs can reside in the system
  79 // simultaneously.
  80 //=========================================================
  81
  82 #define TAP_COMPONENT_ID "tap0801"