Initial commit

tun/src/windows/mod.rs

@@ -0,0 +1,44 @@
+use std::io::Result;
+use std::ptr;
+use widestring::{u16cstr, U16CString};
+
+pub struct TunInterface {
+    wintun: sys::wintun,
+    handle: sys::WINTUN_ADAPTER_HANDLE,
+    name: String,
+}
+
+impl TunInterface {
+    pub fn new() -> Result<TunInterface> {
+        let name = U16CString::from(u16cstr!("ConradNet"));
+        let wintun = sys::wintun::default();
+        let handle =
+            unsafe { wintun.WintunCreateAdapter(name.as_ptr(), name.as_ptr(), ptr::null()) };
+        Ok(TunInterface {
+            wintun,
+            handle,
+            name: String::from("ConradNet"),
+        })
+    }
+
+    pub fn name(&self) -> String {
+        self.name.clone()
+    }
+}
+
+impl Drop for TunInterface {
+    fn drop(&mut self) {
+        unsafe { self.wintun.WintunCloseAdapter(self.handle) }
+    }
+}
+
+pub(crate) mod sys {
+    #![allow(dead_code, non_camel_case_types, non_snake_case)]
+    include!(concat!(env!("OUT_DIR"), "/wintun.rs"));
+
+    impl Default for wintun {
+        fn default() -> Self {
+            unsafe { wintun::new(format!("{}/wintun.dll", env!("OUT_DIR"))).unwrap() }
+        }
+    }
+}