67 lines
1.8 KiB
Elixir
67 lines
1.8 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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def new(options) do
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src_field = Keyword.get(options, :src_field)
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dst_field = Keyword.get(options, :dst_field)
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default_n_bits = Openflow.Match.Field.n_bits_of(dst_field)
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n_bits = Keyword.get(options, :n_bits, default_n_bits)
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src_ofs = Keyword.get(options, :src_offset, 0)
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dst_ofs = Keyword.get(options, :dst_offset, 0)
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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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def to_binary(%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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}) do
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src_field_bin = Openflow.Match.codec_header(src_field)
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dst_field_bin = Openflow.Match.codec_header(dst_field)
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body =
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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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exp_body = <<@experimenter::32, @nxast::16, body::bytes>>
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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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<<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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