X-Git-Url: https://git.syn-net.org/debian/?p=anytun.git;a=blobdiff_plain;f=src%2Fwin32%2FtunDevice.cpp;h=bd7794f9da6108432750126da8cec803b5041758;hp=6e6c83d57fc21859323c59531dfb6d96aba77180;hb=ef0cacf2508418915d3f64b04003be3c13fed3cc;hpb=ece844834d2cecc028ce81ca283f5d441088580e diff --git a/src/win32/tunDevice.cpp b/src/win32/tunDevice.cpp index 6e6c83d..bd7794f 100644 --- a/src/win32/tunDevice.cpp +++ b/src/win32/tunDevice.cpp @@ -11,7 +11,7 @@ * tunneling and relaying of packets of any protocol. * * - * Copyright (C) 2007-2009 Othmar Gsenger, Erwin Nindl, + * Copyright (C) 2007-2009 Othmar Gsenger, Erwin Nindl, * Christian Pointner * * This file is part of Anytun. @@ -47,21 +47,24 @@ #define MIN_TAP_VER_MAJOR 8 #define MIN_TAP_VER_MINOR 2 -TunDevice::TunDevice(std::string dev_name, std::string dev_type, std::string ifcfg_addr, u_int16_t ifcfg_prefix) : conf_(dev_name, dev_type, ifcfg_addr, ifcfg_prefix, 1400) +TunDevice::TunDevice(std::string dev_name, std::string dev_type, std::string ifcfg_addr, uint16_t ifcfg_prefix) : conf_(dev_name, dev_type, ifcfg_addr, ifcfg_prefix, 1400) { - if(conf_.type_ != TYPE_TUN && conf_.type_ != TYPE_TAP) + if(conf_.type_ != TYPE_TUN && conf_.type_ != TYPE_TAP) { AnytunError::throwErr() << "unable to recognize type of device (tun or tap)"; + } handle_ = INVALID_HANDLE_VALUE; - if(!getAdapter(dev_name)) + if(!getAdapter(dev_name)) { AnytunError::throwErr() << "can't find any suitable device"; + } if(handle_ == INVALID_HANDLE_VALUE) { std::stringstream tapname; - tapname << USERMODEDEVICEDIR << actual_node_ << TAPSUFFIX; + tapname << USERMODEDEVICEDIR << actual_node_ << TAPSUFFIX; handle_ = CreateFileA(tapname.str().c_str(), GENERIC_WRITE | GENERIC_READ, 0, 0, OPEN_EXISTING, FILE_ATTRIBUTE_SYSTEM | FILE_FLAG_OVERLAPPED, 0); - if(handle_ == INVALID_HANDLE_VALUE) + if(handle_ == INVALID_HANDLE_VALUE) { AnytunError::throwErr() << "Unable to open device: " << actual_node_ << " (" << actual_name_ << "): " << AnytunErrno(GetLastError()); + } } DWORD err; @@ -90,15 +93,16 @@ TunDevice::TunDevice(std::string dev_name, std::string dev_type, std::string ifc } } - if(ifcfg_addr != "") + if(ifcfg_addr != "") { do_ifconfig(); + } int status = true; err = performIoControl(TAP_IOCTL_SET_MEDIA_STATUS, &status, sizeof(status), &status, sizeof(status)); if(err != ERROR_SUCCESS) { CloseHandle(handle_); AnytunError::throwErr() << "Unable to set device media status: " << AnytunErrno(err); - } + } roverlapped_.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); woverlapped_.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); @@ -108,45 +112,50 @@ bool TunDevice::getAdapter(std::string const& dev_name) { RegistryKey akey; DWORD err = akey.open(HKEY_LOCAL_MACHINE, ADAPTER_KEY, KEY_ENUMERATE_SUB_KEYS); - if(err != ERROR_SUCCESS) + if(err != ERROR_SUCCESS) { AnytunError::throwErr() << "Unable to open registry key (HKLM\\" << ADAPTER_KEY << "): " << AnytunErrno(err); - + } + bool found = false; for(int i=0; ; ++i) { RegistryKey ckey; DWORD err = akey.getSubKey(i, ckey, KEY_QUERY_VALUE); - if(err == ERROR_NO_MORE_ITEMS) + if(err == ERROR_NO_MORE_ITEMS) { break; - if(err != ERROR_SUCCESS) + } + if(err != ERROR_SUCCESS) { continue; + } try { - if(ckey["ComponentId"] != TAP_COMPONENT_ID) + if(ckey["ComponentId"] != TAP_COMPONENT_ID) { continue; + } actual_node_ = ckey["NetCfgInstanceId"]; RegistryKey nkey; std::stringstream keyname; keyname << NETWORK_CONNECTIONS_KEY << "\\" << actual_node_ << "\\Connection"; err = nkey.open(HKEY_LOCAL_MACHINE, keyname.str().c_str(), KEY_QUERY_VALUE);; - if(err != ERROR_SUCCESS) + if(err != ERROR_SUCCESS) { continue; - - actual_name_ = nkey["Name"]; - } catch(AnytunErrno&) { continue; } + } + + actual_name_ = nkey["Name"]; + } catch(AnytunErrno&) { continue; } if(dev_name != "") { if(dev_name == actual_name_) { found = true; break; } - } - else { + } else { std::stringstream tapname; tapname << USERMODEDEVICEDIR << actual_node_ << TAPSUFFIX; handle_ = CreateFileA(tapname.str().c_str(), GENERIC_WRITE | GENERIC_READ, 0, 0, OPEN_EXISTING, FILE_ATTRIBUTE_SYSTEM | FILE_FLAG_OVERLAPPED, 0); - if(handle_ == INVALID_HANDLE_VALUE) + if(handle_ == INVALID_HANDLE_VALUE) { continue; + } found = true; break; } @@ -163,18 +172,19 @@ DWORD TunDevice::performIoControl(DWORD controlCode, LPVOID inBuffer, DWORD inBu OVERLAPPED overlapped; overlapped.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); overlapped.Offset = 0; - overlapped.OffsetHigh = 0; - + overlapped.OffsetHigh = 0; + DWORD len; if(!DeviceIoControl(handle_, controlCode, inBuffer, inBufferSize, outBuffer, outBufferSize, &len, &overlapped)) { DWORD err = GetLastError(); if(err == ERROR_IO_PENDING) { WaitForSingleObject(overlapped.hEvent, INFINITE); - if(!GetOverlappedResult(handle_, &overlapped, &len, FALSE)) + if(!GetOverlappedResult(handle_, &overlapped, &len, FALSE)) { return GetLastError(); - } - else + } + } else { return GetLastError(); + } } return ERROR_SUCCESS; } @@ -182,27 +192,30 @@ DWORD TunDevice::performIoControl(DWORD controlCode, LPVOID inBuffer, DWORD inBu TunDevice::~TunDevice() { - if(handle_ != INVALID_HANDLE_VALUE) + if(handle_ != INVALID_HANDLE_VALUE) { CloseHandle(handle_); - if(roverlapped_.hEvent != INVALID_HANDLE_VALUE) + } + if(roverlapped_.hEvent != INVALID_HANDLE_VALUE) { CloseHandle(roverlapped_.hEvent); - if(woverlapped_.hEvent != INVALID_HANDLE_VALUE) + } + if(woverlapped_.hEvent != INVALID_HANDLE_VALUE) { CloseHandle(woverlapped_.hEvent); + } } int TunDevice::fix_return(int ret, size_t pi_length) const { -// nothing to be done here - return 0; + // nothing to be done here + return 0; } -int TunDevice::read(u_int8_t* buf, u_int32_t len) +int TunDevice::read(uint8_t* buf, uint32_t len) { DWORD lenout; roverlapped_.Offset = 0; - roverlapped_.OffsetHigh = 0; + roverlapped_.OffsetHigh = 0; ResetEvent(roverlapped_.hEvent); - + if(!ReadFile(handle_, buf, len, &lenout, &roverlapped_)) { DWORD err = GetLastError(); if(err == ERROR_IO_PENDING) { @@ -211,8 +224,7 @@ int TunDevice::read(u_int8_t* buf, u_int32_t len) cLog.msg(Log::PRIO_ERROR) << "Error while trying to get overlapped result: " << AnytunErrno(GetLastError()); return -1; } - } - else { + } else { cLog.msg(Log::PRIO_ERROR) << "Error while reading from device: " << AnytunErrno(GetLastError()); return -1; } @@ -220,14 +232,14 @@ int TunDevice::read(u_int8_t* buf, u_int32_t len) return lenout; } -int TunDevice::write(u_int8_t* buf, u_int32_t len) +int TunDevice::write(uint8_t* buf, uint32_t len) { DWORD lenout; woverlapped_.Offset = 0; - woverlapped_.OffsetHigh = 0; + woverlapped_.OffsetHigh = 0; ResetEvent(woverlapped_.hEvent); - if(!WriteFile(handle_, buf, len, &lenout, &woverlapped_)) { + if(!WriteFile(handle_, buf, len, &lenout, &woverlapped_)) { DWORD err = GetLastError(); if(err == ERROR_IO_PENDING) { WaitForSingleObject(woverlapped_.hEvent, INFINITE); @@ -235,18 +247,17 @@ int TunDevice::write(u_int8_t* buf, u_int32_t len) cLog.msg(Log::PRIO_ERROR) << "Error while trying to get overlapped result: " << AnytunErrno(GetLastError()); return -1; } - } - else { + } else { cLog.msg(Log::PRIO_ERROR) << "Error while writing to device: " << AnytunErrno(GetLastError()); return -1; } } - return lenout; + return lenout; } void TunDevice::init_post() { -// nothing to be done here + // nothing to be done here } void TunDevice::do_ifconfig() @@ -260,18 +271,18 @@ void TunDevice::do_ifconfig() if(err != ERROR_SUCCESS) { CloseHandle(handle_); AnytunError::throwErr() << "Unable to set device dhcp masq mode: " << AnytunErrno(err); - } + } u_long mtu; err = performIoControl(TAP_IOCTL_GET_MTU, &mtu, sizeof(mtu), &mtu, sizeof(mtu)); if(err != ERROR_SUCCESS) { CloseHandle(handle_); AnytunError::throwErr() << "Unable to get device mtu: " << AnytunErrno(err); - } - conf_.mtu_ = static_cast(mtu); + } + conf_.mtu_ = static_cast(mtu); } void TunDevice::waitUntilReady() { -// nothing to be done here + // nothing to be done here }