// // ArpSnapshot.swift // Tun // // Created by Codex on 2026/5/20. // import Foundation final class ArpSnapshot: Snapshot { private let entries: [UInt32: Data] init(entries: [UInt32: Data]) { self.entries = entries } func lookup(_ ip: UInt32) -> Data? { return self.entries[ip] } static func empty() -> ArpSnapshot { return ArpSnapshot(entries: [:]) } }