60 lines
1.5 KiB
Elixir
60 lines
1.5 KiB
Elixir
defmodule Openflow.Action.NxRegMove do
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defstruct(
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n_bits: 0,
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src_offset: 0,
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dst_offset: 0,
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src_field: nil,
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dst_field: nil
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)
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@experimenter 0x00002320
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@nxast 6
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alias __MODULE__
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alias Openflow.Action.Experimenter
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def new(options \\ []) do
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src_field = options[:src_field] || raise "src_field must be specified"
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dst_field = options[:dst_field] || raise "dst_field must be specified"
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default_n_bits = Openflow.Match.Field.n_bits_of(dst_field)
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%NxRegMove{
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n_bits: options[:n_bits] || default_n_bits,
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src_offset: options[:src_offset] || 0,
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dst_offset: options[:dst_offset] || 0,
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src_field: src_field,
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dst_field: dst_field
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}
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end
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def to_binary(%NxRegMove{} = move) do
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src_field_bin = Openflow.Match.codec_header(move.src_field)
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dst_field_bin = Openflow.Match.codec_header(move.dst_field)
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Experimenter.pack_exp_header(<<
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@experimenter::32,
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@nxast::16,
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move.n_bits::16,
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move.src_offset::16,
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move.dst_offset::16,
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src_field_bin::4-bytes,
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dst_field_bin::4-bytes
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>>)
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end
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def read(<<@experimenter::32, @nxast::16, body::bytes>>) do
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<<n_bits::16, src_ofs::16, dst_ofs::16, src_field_bin::4-bytes, dst_field_bin::4-bytes>> =
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body
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src_field = Openflow.Match.codec_header(src_field_bin)
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dst_field = Openflow.Match.codec_header(dst_field_bin)
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%NxRegMove{
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n_bits: n_bits,
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src_offset: src_ofs,
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dst_offset: dst_ofs,
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src_field: src_field,
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dst_field: dst_field
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}
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end
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end
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