int wmain(int argc, wchar_t* argv[])
{
//Windows XP with SP3 support
#if (defined(PLATFORM_WIN32) && !defined(PLATFORM_WIN64))
GetFunctionPointer(FUNCTION_GETTICKCOUNT64);
GetFunctionPointer(FUNCTION_INET_NTOP);
#endif
#elif (defined(PLATFORM_LINUX) || defined(PLATFORM_MACX))
int main(int argc, char *argv[])
{
#endif
//Get commands.
if (argc > 0)
{
if (!ReadCommand(argc, argv))
return EXIT_SUCCESS;
}
else {
return EXIT_FAILURE;
}
//Read configuration file and WinPcap or LibPcap initialization.
if (!ReadParameter())
{
WSACleanup();
return EXIT_FAILURE;
}
//Mark Local DNS address to PTR Records.
std::thread NetworkInformationMonitorThread(NetworkInformationMonitor);
NetworkInformationMonitorThread.detach();
//Read IPFilter and Hosts.
if (Parameter.OperationMode == LISTEN_MODE_CUSTOM || Parameter.BlacklistCheck || Parameter.LocalRouting)
{
std::thread IPFilterThread(ReadIPFilter);
IPFilterThread.detach();
}
std::thread HostsThread(ReadHosts);
HostsThread.detach();
//DNSCurve initialization
#if defined(ENABLE_LIBSODIUM)
if (Parameter.DNSCurve && DNSCurveParameter.IsEncryption)
{
randombytes_set_implementation(&randombytes_salsa20_implementation);
randombytes_stir();
DNSCurveInit();
}
#endif
#if defined(PLATFORM_WIN)
//Service initialization and start service.
SERVICE_TABLE_ENTRYW ServiceTable[] = {{DEFAULT_LOCAL_SERVICE_NAME, (LPSERVICE_MAIN_FUNCTIONW)ServiceMain}, {nullptr, nullptr}};
if (!StartServiceCtrlDispatcherW(ServiceTable))
{
Parameter.Console = true;
wprintf_s(L"System Error: Service start error, error code is %lu.\n", GetLastError());
wprintf_s(L"System Error: Program will continue to run in console mode.\n");
wprintf_s(L"Please ignore those error messages if you want to run in console mode.\n");
//Handle the system signal and start all monitors.
SetConsoleCtrlHandler((PHANDLER_ROUTINE)CtrlHandler, TRUE);
MonitorInit();
}
#elif (defined(PLATFORM_LINUX) || defined(PLATFORM_MACX))
MonitorInit();
#endif
WSACleanup();
return EXIT_SUCCESS;
}
//Read commands from main program
#if defined(PLATFORM_WIN)
bool __fastcall ReadCommand(int argc, wchar_t* argv[])
#elif (defined(PLATFORM_LINUX) || defined(PLATFORM_MACX))
bool ReadCommand(int argc, char *argv[])
#endif
{
//Path initialization
#if defined(PLATFORM_WIN)
if (!FileNameInit(argv[0]))
return false;
#elif (defined(PLATFORM_LINUX) || defined(PLATFORM_MACX))
std::shared_ptr<char> FileName(new char[PATH_MAX + 1U]());
memset(FileName.get(), 0, PATH_MAX + 1U);
if (getcwd(FileName.get(), PATH_MAX) == nullptr)
{
wprintf(L"Path initialization error.\n");
return false;
}
if (!FileNameInit(FileName.get()))
return false;
FileName.reset();
#endif
#if defined(PLATFORM_WIN)
//Winsock initialization
std::shared_ptr<WSAData> WSAInitialization(new WSAData());
if (WSAStartup(MAKEWORD(WINSOCK_VERSION_HIGH, WINSOCK_VERSION_LOW), WSAInitialization.get()) != 0 ||
LOBYTE(WSAInitialization->wVersion) != WINSOCK_VERSION_LOW || HIBYTE(WSAInitialization->wVersion) != WINSOCK_VERSION_HIGH)
{
wprintf_s(L"Winsock initialization error, error code is %d.\n", WSAGetLastError());
PrintError(LOG_ERROR_NETWORK, L"Winsock initialization error", WSAGetLastError(), nullptr, 0);
WSACleanup();
return false;
}
//Read commands.
std::wstring Commands;
#elif (defined(PLATFORM_LINUX) || defined(PLATFORM_MACX))
std::string Commands;
#endif
for (size_t Index = 1U;(SSIZE_T)Index < argc;++Index)
{
Commands = argv[Index];
//Flush DNS Cache from user.
if (Commands == COMMAND_FLUSH_DNS)
{
#if defined(PLATFORM_WIN)
FlushDNSMailSlotSender();
#elif (defined(PLATFORM_LINUX) || defined(PLATFORM_MACX))
FlushDNSFIFOSender();
#endif
WSACleanup();
return false;
}
//Windows Firewall Test in first start.
#if defined(PLATFORM_WIN)
else if (Commands == COMMAND_FIREWALL_TEST)
{
if (!FirewallTest(AF_INET6) && !FirewallTest(AF_INET))
{
wprintf_s(L"Windows Firewall Test error.\n");
PrintError(LOG_ERROR_NETWORK, L"Windows Firewall Test error", WSAGetLastError(), nullptr, 0);
}
WSACleanup();
return false;
}
#endif
//Set system daemon.
#if defined(PLATFORM_LINUX)
else if (Commands == COMMAND_DISABLE_DAEMON)
{
Parameter.Daemon = false;
}
#endif
//Print current version.
else if (Commands == COMMAND_LONG_PRINT_VERSION || Commands == COMMAND_SHORT_PRINT_VERSION)
{
wprintf_s(L"Pcap_DNSProxy ");
wprintf_s(FULL_VERSION);
wprintf_s(L"\n");
WSACleanup();
return false;
}
//Print help messages.
else if (Commands == COMMAND_LONG_HELP || Commands == COMMAND_SHORT_HELP)
{
wprintf_s(L"Usage: Please see ReadMe... files in Documents folder.\n");
WSACleanup();
return false;
}
//Set working directory from commands.
else if (Commands == COMMAND_LONG_SET_PATH || Commands == COMMAND_SHORT_SET_PATH)
{
//Commands check
if ((SSIZE_T)Index + 1 >= argc)
{
wprintf_s(L"Commands error.\n");
PrintError(LOG_ERROR_SYSTEM, L"Commands error", 0, nullptr, 0);
WSACleanup();
return false;
}
else {
++Index;
Commands = argv[Index];
//Path check.
if (Commands.length() > MAX_PATH)
{
wprintf_s(L"Commands error.\n");
PrintError(LOG_ERROR_SYSTEM, L"Commands error", 0, nullptr, 0);
WSACleanup();
return false;
}
else {
if (!FileNameInit(Commands.c_str()))
return false;
}
}
}
}
//Set system daemon.
#if defined(PLATFORM_LINUX)
if (Parameter.Daemon && daemon(0, 0) == RETURN_ERROR)
{
PrintError(LOG_ERROR_SYSTEM, L"Set system daemon error", 0, nullptr, 0);
return false;
}
#endif
return true;
}
//Get path of program from the main function parameter and Winsock initialization
#if defined(PLATFORM_WIN)
bool __fastcall FileNameInit(const wchar_t *OriginalPath)
#elif (defined(PLATFORM_LINUX) || defined(PLATFORM_MACX))
bool FileNameInit(const char *OriginalPath)
#endif
{
//Path process
#if defined(PLATFORM_WIN)
Parameter.Path_Global->clear();
Parameter.Path_Global->push_back(OriginalPath);
Parameter.Path_Global->front().erase(Parameter.Path_Global->front().rfind(L"\\") + 1U);
for (size_t Index = 0;Index < Parameter.Path_Global->front().length();++Index)
{
if ((Parameter.Path_Global->front()).at(Index) == L'\\')
{
Parameter.Path_Global->front().insert(Index, L"\\");
++Index;
}
}
#elif (defined(PLATFORM_LINUX) || defined(PLATFORM_MACX))
Parameter.sPath_Global->clear();
Parameter.sPath_Global->push_back(OriginalPath);
Parameter.sPath_Global->front().append("/");
std::wstring StringTemp;
MBSToWCSString(StringTemp, OriginalPath);
StringTemp.append(L"/");
Parameter.Path_Global->clear();
Parameter.Path_Global->push_back(StringTemp);
StringTemp.clear();
#endif
//Get path of error/running status log file and mark start time.
Parameter.Path_ErrorLog->clear();
*Parameter.Path_ErrorLog = Parameter.Path_Global->front();
Parameter.Path_ErrorLog->append(L"Error.log");
#if (defined(PLATFORM_LINUX) || defined(PLATFORM_MACX))
Parameter.sPath_ErrorLog->clear();
*Parameter.sPath_ErrorLog = Parameter.sPath_Global->front();
Parameter.sPath_ErrorLog->append("Error.log");
#endif
Parameter.PrintError = true;
time(&StartTime);
return true;
}
//The Main function of program
int main(int argc, char *argv[])
{
#ifdef _DEBUG
//Handle the system signal.
SetConsoleCtrlHandler((PHANDLER_ROUTINE)CtrlHandler, TRUE);
#endif
if (argc > 0)
{
std::shared_ptr<wchar_t> wPath(new wchar_t[MAX_PATH]());
//Path initialization and Winsock initialization.
MultiByteToWideChar(CP_ACP, NULL, argv[0], MBSTOWCS_NULLTERMINATE, wPath.get(), MAX_PATH);
if (FileInit(wPath.get()) == EXIT_FAILURE)
return EXIT_FAILURE;
wPath.reset();
//Windows Firewall Test in first start.
if (argc > 1 && strlen(argv[1U]) == strlen("--FirstStart") && memcmp(argv[1], ("--FirstStart"), strlen("--FirstStart")) == 0)
{
if (FirewallTest(AF_INET6) == EXIT_FAILURE && FirewallTest(AF_INET) == EXIT_FAILURE)
{
PrintError(WINSOCK_ERROR, L"Windows Firewall Test error", NULL, nullptr, NULL);
WSACleanup();
return EXIT_FAILURE;
}
else {
return EXIT_SUCCESS;
}
}
}
else {
return EXIT_FAILURE;
}
//Read configuration file and WinPcap initialization.
if (Parameter.ReadParameter() == EXIT_FAILURE)
{
WSACleanup();
return EXIT_FAILURE;
}
std::thread CaptureInitializationThread(CaptureInit);
CaptureInitializationThread.detach();
//Get Localhost DNS PTR Records.
std::thread IPv6LocalAddressThread(LocalAddressToPTR, AF_INET6);
std::thread IPv4LocalAddressThread(LocalAddressToPTR, AF_INET);
IPv6LocalAddressThread.detach();
IPv4LocalAddressThread.detach();
//DNSCurve initialization
if (Parameter.DNSCurve && DNSCurveParameter.Encryption)
{
randombytes_set_implementation(&randombytes_salsa20_implementation);
DNSCurveInit();
}
//Read IPFilter, start DNS Cache monitor(Timer type) and read Hosts.
if (Parameter.FileRefreshTime > 0)
{
if (Parameter.OperationMode == LISTEN_CUSTOMMODE)
{
std::thread IPFilterThread(&Configuration::ReadIPFilter, std::ref(Parameter));
IPFilterThread.detach();
}
if (Parameter.CacheType != 0)
{
std::thread DNSCacheTimerThread(DNSCacheTimerMonitor, Parameter.CacheType);
DNSCacheTimerThread.detach();
}
std::thread HostsThread(&Configuration::ReadHosts, std::ref(Parameter));
HostsThread.detach();
}
//Service initialization and start service.
SERVICE_TABLE_ENTRYW ServiceTable[] = {{LOCAL_SERVICENAME, (LPSERVICE_MAIN_FUNCTIONW)ServiceMain}, {nullptr, NULL}};
if (!StartServiceCtrlDispatcherW(ServiceTable))
{
PrintError(SYSTEM_ERROR, L"Service start error", GetLastError(), nullptr, NULL);
WSACleanup();
return EXIT_FAILURE;
}
WSACleanup();
return EXIT_SUCCESS;
}