title: Xdp how to determine traffic direction?
body: <p>How do I know inside the xdp function whether a packet is incoming or outgoing? I want to handle only outgoing packets, but I can't find how to identify them.</p>
  <p>Command example:</p>
  <pre><code>ip link set eth1 xdpgeneric obj ebpf.o sec entry
  </code></pre>