Update dependencies

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

@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: MIT
+ *
+ * Copyright (C) 2017-2023 WireGuard LLC. All Rights Reserved.
+ */
+
+package tun
+
+import (
+	"os"
+)
+
+type Event int
+
+const (
+	EventUp = 1 << iota
+	EventDown
+	EventMTUUpdate
+)
+
+type Device interface {
+	// File returns the file descriptor of the device.
+	File() *os.File
+
+	// Read one or more packets from the Device (without any additional headers).
+	// On a successful read it returns the number of packets read, and sets
+	// packet lengths within the sizes slice. len(sizes) must be >= len(bufs).
+	// A nonzero offset can be used to instruct the Device on where to begin
+	// reading into each element of the bufs slice.
+	Read(bufs [][]byte, sizes []int, offset int) (n int, err error)
+
+	// Write one or more packets to the device (without any additional headers).
+	// On a successful write it returns the number of packets written. A nonzero
+	// offset can be used to instruct the Device on where to begin writing from
+	// each packet contained within the bufs slice.
+	Write(bufs [][]byte, offset int) (int, error)
+
+	// MTU returns the MTU of the Device.
+	MTU() (int, error)
+
+	// Name returns the current name of the Device.
+	Name() (string, error)
+
+	// Events returns a channel of type Event, which is fed Device events.
+	Events() <-chan Event
+
+	// Close stops the Device and closes the Event channel.
+	Close() error
+
+	// BatchSize returns the preferred/max number of packets that can be read or
+	// written in a single read/write call. BatchSize must not change over the
+	// lifetime of a Device.
+	BatchSize() int
+}
+
+// GRODevice is a Device extended with methods for disabling GRO. Certain OS
+// versions may have offload bugs. Where these bugs negatively impact throughput
+// or break connectivity entirely we can use these methods to disable the
+// related offload.
+//
+// Linux has the following known, GRO bugs.
+//
+// torvalds/linux@e269d79c7d35aa3808b1f3c1737d63dab504ddc8 broke virtio_net
+// TCP & UDP GRO causing GRO writes to return EINVAL. The bug was then
+// resolved later in
+// torvalds/linux@89add40066f9ed9abe5f7f886fe5789ff7e0c50e. The offending
+// commit was pulled into various LTS releases.
+//
+// UDP GRO writes end up blackholing/dropping packets destined for a
+// vxlan/geneve interface on kernel versions prior to 6.8.5.
+type GRODevice interface {
+	Device
+	// DisableUDPGRO disables UDP GRO if it is enabled.
+	DisableUDPGRO()
+	// DisableTCPGRO disables TCP GRO if it is enabled.
+	DisableTCPGRO()
+}