diff options
Diffstat (limited to 'src/win32')
| -rw-r--r-- | src/win32/tunDevice.cpp | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/src/win32/tunDevice.cpp b/src/win32/tunDevice.cpp index 9c02208..2e95966 100644 --- a/src/win32/tunDevice.cpp +++ b/src/win32/tunDevice.cpp @@ -42,6 +42,9 @@ #include "registryKey.h" #include "common.h" +#define MIN_TAP_VER_MAJOR 8 +#define MIN_TAP_VER_MINOR 1 + TunDevice::TunDevice(std::string dev_name, std::string dev_type, std::string ifcfg_lp, std::string ifcfg_rnmp) : conf_(dev_name, dev_type, ifcfg_lp, ifcfg_rnmp, 1400) { if(conf_.type_ != TYPE_TUN && conf_.type_ != TYPE_TAP) @@ -63,6 +66,23 @@ TunDevice::TunDevice(std::string dev_name, std::string dev_type, std::string ifc } DWORD err; + u_long info[3]; + info[0] = info[1] = info[2] = 0; + err = performIoControl(TAP_IOCTL_GET_VERSION, info, sizeof(info), info, sizeof(info)); + if(err != ERROR_SUCCESS) { + CloseHandle(handle_); + std::stringstream msg; + msg << "Unable to get device version: " << LogErrno(err); + throw std::runtime_error(msg.str()); + } + cLog.msg(Log::PRIO_NOTICE) << "Windows TAP Driver Version " << info[0] << "." << info[1] << " " << (info[2] ? "(DEBUG)" : ""); + if(!(info[0] > MIN_TAP_VER_MAJOR || (info[0] == MIN_TAP_VER_MAJOR && info[1] >= MIN_TAP_VER_MINOR))) { + CloseHandle(handle_); + std::stringstream msg; + msg << "need a higher Version of TAP Driver (at least " << MIN_TAP_VER_MAJOR << "." << MIN_TAP_VER_MINOR << ")"; + throw std::runtime_error(msg.str()); + } + if(conf_.type_ == TYPE_TUN) { u_long ep[2]; ep[0] = htonl(conf_.local_.getNetworkAddressV4().to_ulong()); @@ -72,7 +92,8 @@ TunDevice::TunDevice(std::string dev_name, std::string dev_type, std::string ifc CloseHandle(handle_); std::stringstream msg; msg << "Unable to set device point-to-point mode: " << LogErrno(err); - } + throw std::runtime_error(msg.str()); + } } int status = true; |