Openflow parser

lib/openflow/actions/nx_controller.ex

@@ -0,0 +1,32 @@
+defmodule Openflow.Action.NxController do
+  defstruct(
+    max_len: :no_buffer,
+    id: 0,
+    reason: :action
+  )
+
+  @experimenter 0x00002320
+  @nxast 20
+
+  alias __MODULE__
+
+  def new(options) do
+    max_len = Keyword.get(options, :max_len, :no_buffer)
+    controller_id = Keyword.get(options, :id, 0)
+    reason = Keyword.get(options, :reason, :action)
+    %NxController{max_len: max_len, id: controller_id, reason: reason}
+  end
+
+  def to_binary(%NxController{max_len: max_len, id: controller_id, reason: reason}) do
+    max_len_int = Openflow.Utils.get_enum(max_len, :controller_max_len)
+    reason_int = Openflow.Enums.to_int(reason, :packet_in_reason)
+    exp_body = <<@experimenter::32, @nxast::16, max_len_int::16, controller_id::16, reason_int::8, 0::8>>
+    <<0xffff::16, 16::16, exp_body::bytes>>
+  end
+
+  def read(<<@experimenter::32, @nxast::16, max_len_int::16, controller_id::16, reason_int::8, _::bytes>>) do
+    max_len = Openflow.Utils.get_enum(max_len_int, :controller_max_len)
+    reason = Openflow.Enums.to_atom(reason_int, :packet_in_reason)
+    %NxController{max_len: max_len, id: controller_id, reason: reason}
+  end
+end