106 lines
3.2 KiB
Elixir
106 lines
3.2 KiB
Elixir
defmodule Openflow.Action.NxLearn2 do
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defstruct(
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idle_timeout: 0,
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hard_timeout: 0,
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priority: 0,
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cookie: 0,
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flags: [],
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table_id: 0,
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fin_idle_timeout: 0,
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fin_hard_timeout: 0,
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limit: 0,
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result_dst_offset: 0,
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result_dst: nil,
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flow_specs: []
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)
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@experimenter 0x00002320
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@nxast 45
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alias __MODULE__
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def new(options) do
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%NxLearn2{
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idle_timeout: options[:idle_timeout] || 0,
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hard_timeout: options[:hard_timeout] || 0,
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priority: options[:priority] || 0,
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cookie: options[:cookie] || 0,
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flags: options[:flags] || [],
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table_id: options[:table_id] || 0xFF,
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fin_idle_timeout: options[:fin_idle_timeout] || 0,
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fin_hard_timeout: options[:fin_hard_timeout] || 0,
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limit: options[:limit] || 0,
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result_dst_offset: options[:result_dst_offset] || 0,
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result_dst: options[:result_dst],
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flow_specs: options[:flow_specs] || []
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}
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end
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def to_binary(%NxLearn2{
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idle_timeout: idle,
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hard_timeout: hard,
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priority: prio,
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cookie: cookie,
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flags: flags,
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table_id: table_id,
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fin_idle_timeout: fin_idle,
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fin_hard_timeout: fin_hard,
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limit: limit,
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result_dst_offset: result_dst_ofs,
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result_dst: result_dst,
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flow_specs: flow_specs
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}) do
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flags_int = Openflow.Enums.flags_to_int(flags, :nx_learn_flag)
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result_dst_bin =
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if :write_result in flags do
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Openflow.Match.codec_header(result_dst)
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else
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""
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end
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flow_specs_bin = Openflow.Action.NxFlowSpec.to_binary(flow_specs)
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exp_body =
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<<@experimenter::32, @nxast::16, idle::16, hard::16, prio::16, cookie::64, flags_int::16,
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table_id::8, 0::size(1)-unit(8), fin_idle::16, fin_hard::16, limit::32,
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result_dst_ofs::16, 0::size(2)-unit(8), result_dst_bin::bytes, flow_specs_bin::bitstring>>
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exp_body_size = byte_size(exp_body)
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padding_length = Openflow.Utils.padding(4 + exp_body_size, 8)
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length = 4 + exp_body_size + padding_length
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<<0xFFFF::16, length::16, exp_body::bytes, 0::size(padding_length)-unit(8)>>
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end
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def read(<<@experimenter::32, @nxast::16, body::bytes>>) do
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<<idle::16, hard::16, prio::16, cookie::64, flags_int::16, table_id::8, 0::8, fin_idle::16,
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fin_hard::16, limit::32, result_dst_ofs::16, 0::size(2)-unit(8), rest::bytes>> = body
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flags = Openflow.Enums.int_to_flags(flags_int, :nx_learn_flag)
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learn = %NxLearn2{
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idle_timeout: idle,
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hard_timeout: hard,
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priority: prio,
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cookie: cookie,
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flags: flags,
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table_id: table_id,
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fin_idle_timeout: fin_idle,
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fin_hard_timeout: fin_hard,
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limit: limit,
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result_dst_offset: result_dst_ofs
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}
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if :write_result in flags do
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header_size = Openflow.Match.header_size(rest)
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<<result_dst_bin::size(header_size)-bytes, flow_specs_bin::bytes>> = rest
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result_dst = Openflow.Match.codec_header(result_dst_bin)
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flow_specs = Openflow.Action.NxFlowSpec.read(flow_specs_bin)
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struct(learn, %{result_dst: result_dst, flow_specs: flow_specs})
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else
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<<flow_specs_bin::bytes>> = rest
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flow_specs = Openflow.Action.NxFlowSpec.read(flow_specs_bin)
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struct(learn, %{flow_specs: flow_specs})
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end
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end
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end
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