Init commit

gvisor_linux.go

@@ -0,0 +1,22 @@
+package tun
+
+import (
+	"runtime"
+
+	"gvisor.dev/gvisor/pkg/tcpip/link/fdbased"
+	"gvisor.dev/gvisor/pkg/tcpip/stack"
+)
+
+func NewEndpoint(tunFd uintptr, tunMtu uint32) (stack.LinkEndpoint, error) {
+	var packetDispatchMode fdbased.PacketDispatchMode
+	if runtime.GOARCH == "amd64" || runtime.GOARCH == "arm64" {
+		packetDispatchMode = fdbased.PacketMMap
+	} else {
+		packetDispatchMode = fdbased.RecvMMsg
+	}
+	return fdbased.New(&fdbased.Options{
+		FDs:                []int{int(tunFd)},
+		MTU:                tunMtu,
+		PacketDispatchMode: packetDispatchMode,
+	})
+}