Update dependencies

vendor/github.com/tailscale/wireguard-go/device/tun.go

@@ -0,0 +1,53 @@
+/* SPDX-License-Identifier: MIT
+ *
+ * Copyright (C) 2017-2023 WireGuard LLC. All Rights Reserved.
+ */
+
+package device
+
+import (
+	"fmt"
+
+	"github.com/tailscale/wireguard-go/tun"
+)
+
+const DefaultMTU = 1420
+
+func (device *Device) RoutineTUNEventReader() {
+	device.log.Verbosef("Routine: event worker - started")
+
+	for event := range device.tun.device.Events() {
+		if event&tun.EventMTUUpdate != 0 {
+			mtu, err := device.tun.device.MTU()
+			if err != nil {
+				device.log.Errorf("Failed to load updated MTU of device: %v", err)
+				continue
+			}
+			if mtu < 0 {
+				device.log.Errorf("MTU not updated to negative value: %v", mtu)
+				continue
+			}
+			var tooLarge string
+			if mtu > MaxContentSize {
+				tooLarge = fmt.Sprintf(" (too large, capped at %v)", MaxContentSize)
+				mtu = MaxContentSize
+			}
+			old := device.tun.mtu.Swap(int32(mtu))
+			if int(old) != mtu {
+				device.log.Verbosef("MTU updated: %v%s", mtu, tooLarge)
+			}
+		}
+
+		if event&tun.EventUp != 0 {
+			device.log.Verbosef("Interface up requested")
+			device.Up()
+		}
+
+		if event&tun.EventDown != 0 {
+			device.log.Verbosef("Interface down requested")
+			device.Down()
+		}
+	}
+
+	device.log.Verbosef("Routine: event worker - stopped")
+}