Feature: add UDP TPROXY support on Linux (#562)

proxy/redir/utils_other.go

@@ -0,0 +1,12 @@
+// +build !linux
+
+package redir
+
+import (
+	"errors"
+	"net"
+)
+
+func dialUDP(network string, lAddr *net.UDPAddr, rAddr *net.UDPAddr) (*net.UDPConn, error) {
+	return nil, errors.New("UDP redir not supported on current platform")
+}