glacjay · September 19, 2010 16:24 · Sep 19, 2010
diff --git a/tun-ping-win.py b/tun-ping-win.py
@@ -0,0 +1,55 @@
+import _winreg as reg
+import win32file
+
+
+adapter_key = r'SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002BE10318}'
+
+
+def get_device_guid():
+    with reg.OpenKey(reg.HKEY_LOCAL_MACHINE, adapter_key) as adapters:
+        try:
+            for i in xrange(10000):
+                key_name = reg.EnumKey(adapters, i)
+                with reg.OpenKey(adapters, key_name) as adapter:
+                    try:
+                        component_id = reg.QueryValueEx(adapter, 'ComponentId')[0]
+                        if component_id == 'tap0801':
+                            return reg.QueryValueEx(adapter, 'NetCfgInstanceId')[0]
+                    except WindowsError, err:
+                        pass
+        except WindowsError, err:
+            pass
+
+def CTL_CODE(device_type, function, method, access):
+    return (device_type << 16) | (access << 14) | (function << 2) | method;
+
+def TAP_CONTROL_CODE(request, method):
+    return CTL_CODE(34, request, method, 0)
+
+TAP_IOCTL_CONFIG_POINT_TO_POINT = TAP_CONTROL_CODE(5, 0)
+TAP_IOCTL_SET_MEDIA_STATUS = TAP_CONTROL_CODE(6, 0)
+TAP_IOCTL_CONFIG_TUN = TAP_CONTROL_CODE(10, 0)
+
+
+if __name__ == '__main__':
+    guid = get_device_guid()
+    handle = win32file.CreateFile(r'\\.\Global\%s.tap' % guid,
+                                  win32file.GENERIC_READ | win32file.GENERIC_WRITE,
+                                  win32file.FILE_SHARE_READ | win32file.FILE_SHARE_WRITE,
+                                  None, win32file.OPEN_EXISTING,
+                                  win32file.FILE_ATTRIBUTE_SYSTEM, # | win32file.FILE_FLAG_OVERLAPPED,
+                                  None)
+    print(handle.handle)
+    if False:
+        win32file.DeviceIoControl(handle, TAP_IOCTL_CONFIG_POINT_TO_POINT,
+                                  '\xc0\xa8\x11\x01\xc0\xa8\x11\x10', None);
+    else:
+        win32file.DeviceIoControl(handle, TAP_IOCTL_SET_MEDIA_STATUS, '\x01\x00\x00\x00', None)
+        win32file.DeviceIoControl(handle, TAP_IOCTL_CONFIG_TUN,
+                                  '\x0a\x03\x00\x01\x0a\x03\x00\x00\xff\xff\xff\x00', None)
+    while True:
+        l, p = win32file.ReadFile(handle, 2000)
+        q = p[:12] + p[16:20] + p[12:16] + p[20:]
+        win32file.WriteFile(handle, q)
+        print(p, q)
+    win32file.CloseHandle(handle)