Move PacketTunnelProvider extension pass the key to the Actor

Author: acb-mv

ios/MullvadTypes/Protocols/PostQuantumKeyReceiving.swift

@@ -9,17 +9,17 @@
 import Foundation
 import WireGuardKitTypes
 
-protocol PostQuantumKeyReceiving {
-    func receivePostQuantumKey(_ key: PrivateKey)
+public protocol PostQuantumKeyReceiving {
+    func receivePostQuantumKey(_ key: PreSharedKey)
 }
 
-enum PostQuantumKeyReceivingError: Error {
+public enum PostQuantumKeyReceivingError: Error {
     case invalidKey
 }
 
-extension PostQuantumKeyReceiving {
+public extension PostQuantumKeyReceiving {
     func receivePostQuantumKey(_ keyData: Data) throws {
-        guard let key = PrivateKey(rawValue: keyData) else {
+        guard let key = PreSharedKey(rawValue: keyData) else {
             throw PostQuantumKeyReceivingError.invalidKey
         }
         receivePostQuantumKey(key)

ios/PacketTunnel/PacketTunnelProvider/PacketTunnelProvider.swift

@@ -14,6 +14,7 @@ import MullvadTypes
 import NetworkExtension
 import PacketTunnelCore
 import TunnelObfuscation
+import WireGuardKitTypes
 
 class PacketTunnelProvider: NEPacketTunnelProvider {
     private let internalQueue = DispatchQueue(label: "PacketTunnel-internalQueue")
@@ -275,3 +276,10 @@ extension PacketTunnelProvider {
         }
     }
 }
+
+extension PacketTunnelProvider: PostQuantumKeyReceiving {
+    func receivePostQuantumKey(_ key: PreSharedKey) {
+        // TODO: send the key to the actor
+        actor.replacePreSharedKey(key)
+    }
+}

ios/PacketTunnelCore/Actor/PacketTunnelActor+Public.swift

@@ -7,6 +7,7 @@
 //
 
 import Foundation
+import WireGuardKitTypes
 
 /**
  Public methods for dispatching commands to Actor.
@@ -50,6 +51,15 @@ extension PacketTunnelActor {
         commandChannel.send(.notifyKeyRotated(date))
     }
 
+    /**
+     Issue a new preshared key to the Actor.
+     - Parameter key: the new key
+     */
+
+    nonisolated public func replacePreSharedKey(_ key: PreSharedKey) {
+        commandChannel.send(.replaceDevicePrivateKey(key))
+    }
+
     /**
      Tell actor to enter error state.
      */