/* * TAP-Windows -- A kernel driver to provide virtual tap * device functionality on Windows. * * This code was inspired by the CIPE-Win32 driver by Damion K. Wilson. * * This source code is Copyright (C) 2002-2014 OpenVPN Technologies, Inc., * and is released under the GPL version 2 (see below). * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 * as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program (see the file COPYING included with this * distribution); if not, write to the Free Software Foundation, Inc., * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ //----------------- // DEBUGGING OUTPUT //----------------- extern const char *g_LastErrorFilename; extern int g_LastErrorLineNumber; // Debug info output #define ALSO_DBGPRINT 1 #define DEBUGP_AT_DISPATCH 1 // Uncomment line below to allow packet dumps //#define ALLOW_PACKET_DUMP 1 #define NOTE_ERROR() \ { \ g_LastErrorFilename = __FILE__; \ g_LastErrorLineNumber = __LINE__; \ } #if DBG typedef struct { unsigned int in; unsigned int out; unsigned int capacity; char *text; BOOLEAN error; MUTEX lock; } DebugOutput; VOID MyDebugPrint (const unsigned char* format, ...); VOID PrMac (const MACADDR mac); VOID PrIP (IPADDR ip_addr); #ifdef ALLOW_PACKET_DUMP VOID DumpPacket( __in const char *prefix, __in const unsigned char *data, __in unsigned int len ); DumpPacket2( __in const char *prefix, __in const ETH_HEADER *eth, __in const unsigned char *data, __in unsigned int len ); #else #define DUMP_PACKET(prefix, data, len) #define DUMP_PACKET2(prefix, eth, data, len) #endif #define CAN_WE_PRINT (DEBUGP_AT_DISPATCH || KeGetCurrentIrql () < DISPATCH_LEVEL) #if ALSO_DBGPRINT #define DEBUGP(fmt) { MyDebugPrint fmt; if (CAN_WE_PRINT) DbgPrint fmt; } #else #define DEBUGP(fmt) { MyDebugPrint fmt; } #endif #ifdef ALLOW_PACKET_DUMP #define DUMP_PACKET(prefix, data, len) \ DumpPacket (prefix, data, len) #define DUMP_PACKET2(prefix, eth, data, len) \ DumpPacket2 (prefix, eth, data, len) #endif BOOLEAN GetDebugLine ( __in char *buf, __in const int len ); #else #define DEBUGP(fmt) #define DUMP_PACKET(prefix, data, len) #define DUMP_PACKET2(prefix, eth, data, len) #endif