Add PXE Base Code protocol (#417)

Author: Freax13

src/proto/mod.rs

@@ -69,6 +69,7 @@ pub mod debug;
 pub mod device_path;
 pub mod loaded_image;
 pub mod media;
+pub mod network;
 pub mod pi;
 pub mod rng;
 pub mod shim;

src/proto/network/mod.rs

@@ -0,0 +1,36 @@
+//! Network access protocols.
+//!
+//! These protocols can be used to interact with network resources.
+
+pub mod pxe;
+
+/// Represents an IPv4/v6 address.
+///
+/// Corresponds to the `EFI_IP_ADDRESS` type in the C API.
+#[derive(Clone, Copy, PartialEq, Eq, Hash)]
+#[repr(C, align(4))]
+pub struct IpAddress(pub [u8; 16]);
+
+impl IpAddress {
+    /// Construct a new IPv4 address.
+    pub const fn new_v4(ip_addr: [u8; 4]) -> Self {
+        let mut buffer = [0; 16];
+        buffer[0] = ip_addr[0];
+        buffer[1] = ip_addr[1];
+        buffer[2] = ip_addr[2];
+        buffer[3] = ip_addr[3];
+        Self(buffer)
+    }
+
+    /// Construct a new IPv6 address.
+    pub const fn new_v6(ip_addr: [u8; 16]) -> Self {
+        Self(ip_addr)
+    }
+}
+
+/// Represents a MAC (media access control) address.
+///
+/// Corresponds to the `EFI_MAC_ADDRESS` type in the C API.
+#[derive(Clone, Copy, PartialEq, Eq, Hash)]
+#[repr(C)]
+pub struct MacAddress(pub [u8; 32]);