调整项目结构、尝试支持安卓

switch/rust-tun/src/configuration.rs

@@ -0,0 +1,126 @@
+//            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+//                    Version 2, December 2004
+//
+// Copyleft (ↄ) meh. <[email protected]> | http://meh.schizofreni.co
+//
+// Everyone is permitted to copy and distribute verbatim or modified
+// copies of this license document, and changing it is allowed as long
+// as the name is changed.
+//
+//            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+//   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+//
+//  0. You just DO WHAT THE FUCK YOU WANT TO.
+
+use std::net::Ipv4Addr;
+use std::os::unix::io::RawFd;
+
+use crate::address::IntoAddress;
+use crate::platform;
+
+/// TUN interface OSI layer of operation.
+#[derive(Clone, Copy, Debug, Eq, PartialEq)]
+pub enum Layer {
+    L2,
+    L3,
+}
+
+impl Default for Layer {
+    fn default() -> Self {
+        Layer::L3
+    }
+}
+
+/// Configuration builder for a TUN interface.
+#[derive(Clone, Default, Debug)]
+pub struct Configuration {
+    pub(crate) name: Option<String>,
+    pub(crate) platform: platform::Configuration,
+
+    pub(crate) address: Option<Ipv4Addr>,
+    pub(crate) destination: Option<Ipv4Addr>,
+    pub(crate) broadcast: Option<Ipv4Addr>,
+    pub(crate) netmask: Option<Ipv4Addr>,
+    pub(crate) mtu: Option<i32>,
+    pub(crate) enabled: Option<bool>,
+    pub(crate) layer: Option<Layer>,
+    pub(crate) queues: Option<usize>,
+    pub(crate) raw_fd: Option<RawFd>,
+}
+
+impl Configuration {
+    /// Access the platform dependant configuration.
+    pub fn platform<F>(&mut self, f: F) -> &mut Self
+    where
+        F: FnOnce(&mut platform::Configuration),
+    {
+        f(&mut self.platform);
+        self
+    }
+
+    /// Set the name.
+    pub fn name<S: AsRef<str>>(&mut self, name: S) -> &mut Self {
+        self.name = Some(name.as_ref().into());
+        self
+    }
+
+    /// Set the address.
+    pub fn address<A: IntoAddress>(&mut self, value: A) -> &mut Self {
+        self.address = Some(value.into_address().unwrap());
+        self
+    }
+
+    /// Set the destination address.
+    pub fn destination<A: IntoAddress>(&mut self, value: A) -> &mut Self {
+        self.destination = Some(value.into_address().unwrap());
+        self
+    }
+
+    /// Set the broadcast address.
+    pub fn broadcast<A: IntoAddress>(&mut self, value: A) -> &mut Self {
+        self.broadcast = Some(value.into_address().unwrap());
+        self
+    }
+
+    /// Set the netmask.
+    pub fn netmask<A: IntoAddress>(&mut self, value: A) -> &mut Self {
+        self.netmask = Some(value.into_address().unwrap());
+        self
+    }
+
+    /// Set the MTU.
+    pub fn mtu(&mut self, value: i32) -> &mut Self {
+        self.mtu = Some(value);
+        self
+    }
+
+    /// Set the interface to be enabled once created.
+    pub fn up(&mut self) -> &mut Self {
+        self.enabled = Some(true);
+        self
+    }
+
+    /// Set the interface to be disabled once created.
+    pub fn down(&mut self) -> &mut Self {
+        self.enabled = Some(false);
+        self
+    }
+
+    /// Set the OSI layer of operation.
+    pub fn layer(&mut self, value: Layer) -> &mut Self {
+        self.layer = Some(value);
+        self
+    }
+
+    /// Set the number of queues.
+    pub fn queues(&mut self, value: usize) -> &mut Self {
+        self.queues = Some(value);
+        self
+    }
+
+    /// Set the raw fd.
+    pub fn raw_fd(&mut self, fd: RawFd) -> &mut Self {
+        self.raw_fd = Some(fd);
+        self
+    }
+}