41 lines
1.2 KiB
Elixir
41 lines
1.2 KiB
Elixir
defmodule Openflow.Action.NxStackPush do
|
|
defstruct(
|
|
n_bits: 0,
|
|
offset: 0,
|
|
field: nil
|
|
)
|
|
|
|
@experimenter 0x00002320
|
|
@nxast 27
|
|
|
|
alias __MODULE__
|
|
|
|
def new(options) do
|
|
field = Keyword.get(options, :field)
|
|
default_n_bits = Openflow.Match.Field.n_bits_of(field)
|
|
n_bits = Keyword.get(options, :n_bits, default_n_bits)
|
|
ofs = Keyword.get(options, :offset, 0)
|
|
%NxStackPush{n_bits: n_bits, offset: ofs, field: field}
|
|
end
|
|
|
|
def to_binary(%NxStackPush{n_bits: n_bits, offset: ofs, field: field}) do
|
|
field_bin = Openflow.Match.codec_header(field)
|
|
|
|
exp_body =
|
|
<<@experimenter::32, @nxast::16, ofs::16, field_bin::4-bytes, n_bits::16,
|
|
0::size(6)-unit(8)>>
|
|
|
|
exp_body_size = byte_size(exp_body)
|
|
padding_length = Openflow.Utils.padding(4 + exp_body_size, 8)
|
|
length = 4 + exp_body_size + padding_length
|
|
<<0xFFFF::16, length::16, exp_body::bytes, 0::size(padding_length)-unit(8)>>
|
|
end
|
|
|
|
def read(
|
|
<<@experimenter::32, @nxast::16, ofs::16, field_bin::4-bytes, n_bits::16,
|
|
_::size(6)-unit(8)>>
|
|
) do
|
|
field = Openflow.Match.codec_header(field_bin)
|
|
%NxStackPush{n_bits: n_bits, offset: ofs, field: field}
|
|
end
|
|
end
|