uefi-raw: Add Ipv4Address, Ipv6Address, and MacAddress types

These are defined in "Common UEFI Data Types" part of the spec, so put them in
the root of the crate.

Author: nicholasbishop

uefi-raw/CHANGELOG.md

@@ -1,5 +1,8 @@
 # uefi-raw - [Unreleased]
 
+## Added
+- Added `Ipv4Address`, `Ipv6Address`, and `MacAddress` types.
+
 # uefi-raw - 0.5.0 (2023-11-12)
 
 ## Added

uefi-raw/src/lib.rs

@@ -57,3 +57,18 @@ pub type PhysicalAddress = u64;
 /// Virtual memory address. This is always a 64-bit value, regardless
 /// of target platform.
 pub type VirtualAddress = u64;
+
+/// An IPv4 internet protocol address.
+#[derive(Clone, Copy, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
+#[repr(transparent)]
+pub struct Ipv4Address(pub [u8; 4]);
+
+/// An IPv6 internet protocol address.
+#[derive(Clone, Copy, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
+#[repr(transparent)]
+pub struct Ipv6Address(pub [u8; 16]);
+
+/// A Media Access Control (MAC) address.
+#[derive(Clone, Copy, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
+#[repr(transparent)]
+pub struct MacAddress(pub [u8; 32]);