* tunnel endpoints. It has less protocol overhead than IPSec in Tunnel
* mode and allows tunneling of every ETHER TYPE protocol (e.g.
* ethernet, ip, arp ...). satp directly includes cryptography and
- * message authentication based on the methodes used by SRTP. It is
+ * message authentication based on the methods used by SRTP. It is
* intended to deliver a generic, scaleable and secure solution for
* tunneling and relaying of packets of any protocol.
*
*
- * Copyright (C) 2007-2009 Othmar Gsenger, Erwin Nindl,
+ * Copyright (C) 2007-2014 Markus Grüneis, Othmar Gsenger, Erwin Nindl,
* Christian Pointner <satp@wirdorange.org>
*
* This file is part of Anytun.
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with anytun. If not, see <http://www.gnu.org/licenses/>.
+ * along with Anytun. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * In addition, as a special exception, the copyright holders give
+ * permission to link the code of portions of this program with the
+ * OpenSSL library under certain conditions as described in each
+ * individual source file, and distribute linked combinations
+ * including the two.
+ * You must obey the GNU General Public License in all respects
+ * for all of the code used other than OpenSSL. If you modify
+ * file(s) with this exception, you may extend this exception to your
+ * version of the file(s), but you are not obligated to do so. If you
+ * do not wish to do so, delete this exception statement from your
+ * version. If you delete this exception statement from all source
+ * files in the program, then also delete it here.
*/
#include <string.h>
#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;
}
}
- 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);
{
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;
}
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;
}
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) {
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;
}
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);
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()
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<u_int16_t>(mtu);
+ }
+ conf_.mtu_ = static_cast<uint16_t>(mtu);
+}
+
+void TunDevice::waitUntilReady()
+{
+ // nothing to be done here
}
projects / anytun.git / blobdiff