src/openvpn/tap-win32/error.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 // DEBUGGING OUTPUT
  31 //-----------------
  32
  33 #define NOTE_ERROR() \
  34 { \
  35   g_LastErrorFilename = __FILE__; \
  36   g_LastErrorLineNumber = __LINE__; \
  37 }
  38
  39 #if DBG
  40
  41 typedef struct {
  42   unsigned int in;
  43   unsigned int out;
  44   unsigned int capacity;
  45   char *text;
  46   BOOLEAN error;
  47   MUTEX lock;
  48 } DebugOutput;
  49
  50 VOID MyDebugPrint (const unsigned char* format, ...);
  51
  52 VOID MyAssert (const unsigned char *file, int line);
  53
  54 VOID DumpPacket (const char *prefix,
  55                  const unsigned char *data,
  56                  unsigned int len);
  57
  58 VOID DumpPacket2 (const char *prefix,
  59                   const ETH_HEADER *eth,
  60                   const unsigned char *data,
  61                   unsigned int len);
  62
  63 #define CAN_WE_PRINT (DEBUGP_AT_DISPATCH || KeGetCurrentIrql () < DISPATCH_LEVEL)
  64
  65 #if ALSO_DBGPRINT
  66 #define DEBUGP(fmt) { MyDebugPrint fmt; if (CAN_WE_PRINT) DbgPrint fmt; }
  67 #else
  68 #define DEBUGP(fmt) { MyDebugPrint fmt; }
  69 #endif
  70
  71 #define MYASSERT(exp) \
  72 { \
  73   if (!(exp)) \
  74     { \
  75       MyAssert(__FILE__, __LINE__); \
  76     } \
  77 }
  78
  79 #define DUMP_PACKET(prefix, data, len) \
  80   DumpPacket (prefix, data, len)
  81
  82 #define DUMP_PACKET2(prefix, eth, data, len) \
  83   DumpPacket2 (prefix, eth, data, len)
  84
  85 #else
  86
  87 #define DEBUGP(fmt)
  88 #define MYASSERT(exp)
  89 #define DUMP_PACKET(prefix, data, len)
  90 #define DUMP_PACKET2(prefix, eth, data, len)
  91
  92 #endif