34 lines
1 KiB
Elixir
34 lines
1 KiB
Elixir
defmodule Openflow.Action.NxDecTtlCntIds do
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defstruct(ids: [])
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@experimenter 0x00002320
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@nxast 21
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alias __MODULE__
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def new(ids) do
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%NxDecTtlCntIds{ids: ids}
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end
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def to_binary(%NxDecTtlCntIds{ids: ids}) do
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n_controllers = length(ids)
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ids_bin = Enum.join(for(id <- ids, do: <<id::16>>), "")
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padding = Openflow.Utils.padding(n_controllers, 8)
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exp_body =
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<<@experimenter::32, @nxast::16, n_controllers::16, 0::size(4)-unit(8), ids_bin::bytes,
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0::size(padding)-unit(8)>>
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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, n_controllers::16, body::bitstring>>) do
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n_controllers_len = n_controllers * 16
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<<0::size(4)-unit(8), ids_bin::size(n_controllers_len)-bits, _::bitstring>> = body
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ids = for <<id::16 <- ids_bin>>, do: id
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%NxDecTtlCntIds{ids: ids}
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end
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end
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