Don't send keepalive too early

NearbyShare/Connection/NearbyConnection.swift

@@ -657,7 +657,7 @@ class NearbyConnection {
             return
         }
         
-        if lastKeepAliveFrameSent.isOlderThan(seconds: ackInterval) {
+        if encryptionDone && lastKeepAliveFrameSent.isOlderThan(seconds: ackInterval) {
             sendKeepAlive(ack: false)
         }
         

NearbyShare/Connection/OutboundNearbyConnection.swift

@@ -307,10 +307,7 @@ class OutboundNearbyConnection: NearbyConnection {
         guard frame.hasV1, frame.v1.hasType else { throw NearbyError.requiredFieldMissing("offlineFrame.v1.type") }
 
         if frame.v1.type == .keepAlive {
-            log("[OutboundNearbyConnection \(self.id)] Received keep-alive while waiting for connection response")
-            if frame.v1.hasKeepAlive, !frame.v1.keepAlive.ack {
-                sendKeepAlive(ack: true)
-            }
+            log("[OutboundNearbyConnection \(self.id)] Ignoring keep-alive while waiting for connection response")
             return
         }