Begin drafting cross-platform interface

3 files changed, 23 insertions, 0 deletions

diff --git a/src/platform/mod.rs b/src/platform/mod.rs
new file mode 100644
index 0000000..46f712a
--- /dev/null
+++ b/src/platform/mod.rs
@@ -0,0 +1,2 @@
+mod tun;
+mod udp;
diff --git a/src/platform/tun.rs b/src/platform/tun.rs
new file mode 100644
index 0000000..45fd591
--- /dev/null
+++ b/src/platform/tun.rs
@@ -0,0 +1,10 @@
+use std::sync::atomic::AtomicUsize;
+use std::sync::Arc;
+
+pub trait Tun: Send + Sync {
+    type Error;
+
+    fn new(mtu: Arc<AtomicUsize>) -> Self;
+    fn read(&self, dst: &mut [u8]) -> Result<usize, Self::Error>;
+    fn write(&self, src: &[u8]) -> Result<(), Self::Error>;
+}
diff --git a/src/platform/udp.rs b/src/platform/udp.rs
new file mode 100644
index 0000000..f21a3d3
--- /dev/null
+++ b/src/platform/udp.rs
@@ -0,0 +1,11 @@
+/* Often times an a file descriptor in an atomic might suffice.
+ */
+pub trait Bind<Endpoint>: Send + Sync {
+    type Error;
+
+    fn new() -> Self;
+    fn set_port(&self, port: u16) -> Result<(), Self::Error>;
+    fn get_port(&self) -> u16;
+    fn recv(&self, dst: &mut [u8]) -> Endpoint;
+    fn send(&self, src: &[u8], dst: &Endpoint);
+}