Openflow parser

lib/openflow/multipart/desc/reply.ex

@@ -0,0 +1,30 @@
+defmodule Openflow.Multipart.Desc.Reply do
+  defstruct(
+    version:        4,
+    xid:            0,
+    datapath_id:  nil, # virtual field
+    flags:        [],
+    mfr_desc:     "",
+    hw_desc:      "",
+    sw_desc:      "",
+    serial_num:   "",
+    dp_desc:      ""
+  )
+
+  alias __MODULE__
+
+  @desc_str_len   256
+  @serial_num_len 32
+
+  def ofp_type, do: 19
+
+  def read(<<mfr_desc::size(@desc_str_len)-bytes, hw_desc::size(@desc_str_len)-bytes,
+             sw_desc::size(@desc_str_len)-bytes, serial_num::size(@serial_num_len)-bytes,
+             dp_desc::size(@desc_str_len)-bytes>>) do
+    %Reply{mfr_desc:   Openflow.Utils.decode_string(mfr_desc),
+           hw_desc:    Openflow.Utils.decode_string(hw_desc),
+           sw_desc:    Openflow.Utils.decode_string(sw_desc),
+           serial_num: Openflow.Utils.decode_string(serial_num),
+           dp_desc:    Openflow.Utils.decode_string(dp_desc)}
+  end
+end