tun: import mobile particularities

device/queueconstants_ios.go

@@ -0,0 +1,18 @@
+// +build ios
+
+/* SPDX-License-Identifier: MIT
+ *
+ * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ */
+
+package device
+
+/* Fit within memory limits for iOS's Network Extension API, which has stricter requirements */
+
+const (
+	QueueOutboundSize          = 1024
+	QueueInboundSize           = 1024
+	QueueHandshakeSize         = 1024
+	MaxSegmentSize             = 1700
+	PreallocatedBuffersPerPool = 1024
+)