release/src/router/openvpn/tap-win32/error.h

   1 /*
   2  *  TAP-Win32/TAP-Win64 -- A kernel driver to provide virtual tap
   3  *                         device functionality on Windows.
   4  *
   5  *  This code was inspired by the CIPE-Win32 driver by Damion K. Wilson.
   6  *
   7  *  This source code is Copyright (C) 2002-2009 OpenVPN Technologies, Inc.,
   8  *  and is released under the GPL version 2 (see below).
   9  *
  10  *  This program is free software; you can redistribute it and/or modify
  11  *  it under the terms of the GNU General Public License version 2
  12  *  as published by the Free Software Foundation.
  13  *
  14  *  This program is distributed in the hope that it will be useful,
  15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *  GNU General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License
  20  *  along with this program (see the file COPYING included with this
  21  *  distribution); if not, write to the Free Software Foundation, Inc.,
  22  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  23  */
  24
  25 //-----------------
  26 // DEBUGGING OUTPUT
  27 //-----------------
  28
  29 #define NOTE_ERROR() \
  30 { \
  31   g_LastErrorFilename = __FILE__; \
  32   g_LastErrorLineNumber = __LINE__; \
  33 }
  34
  35 #if DBG
  36
  37 typedef struct {
  38   unsigned int in;
  39   unsigned int out;
  40   unsigned int capacity;
  41   char *text;
  42   BOOLEAN error;
  43   MUTEX lock;
  44 } DebugOutput;
  45
  46 VOID MyDebugPrint (const unsigned char* format, ...);
  47
  48 VOID MyAssert (const unsigned char *file, int line);
  49
  50 VOID DumpPacket (const char *prefix,
  51                  const unsigned char *data,
  52                  unsigned int len);
  53
  54 VOID DumpPacket2 (const char *prefix,
  55                   const ETH_HEADER *eth,
  56                   const unsigned char *data,
  57                   unsigned int len);
  58
  59 #define CAN_WE_PRINT (DEBUGP_AT_DISPATCH || KeGetCurrentIrql () < DISPATCH_LEVEL)
  60
  61 #if ALSO_DBGPRINT
  62 #define DEBUGP(fmt) { MyDebugPrint fmt; if (CAN_WE_PRINT) DbgPrint fmt; }
  63 #else
  64 #define DEBUGP(fmt) { MyDebugPrint fmt; }
  65 #endif
  66
  67 #define MYASSERT(exp) \
  68 { \
  69   if (!(exp)) \
  70     { \
  71       MyAssert(__FILE__, __LINE__); \
  72     } \
  73 }
  74
  75 #define DUMP_PACKET(prefix, data, len) \
  76   DumpPacket (prefix, data, len)
  77
  78 #define DUMP_PACKET2(prefix, eth, data, len) \
  79   DumpPacket2 (prefix, eth, data, len)
  80
  81 #else
  82
  83 #define DEBUGP(fmt)
  84 #define MYASSERT(exp)
  85 #define DUMP_PACKET(prefix, data, len)
  86 #define DUMP_PACKET2(prefix, eth, data, len)
  87
  88 #endif