tres/lib/openflow/actions/set_nw_ttl.ex
2019-05-05 23:39:45 +09:00

39 lines
710 B
Elixir

defmodule Openflow.Action.SetNwTtl do
@moduledoc """
Set IP TTL
"""
defstruct(ttl: 0)
alias __MODULE__
@type t :: %SetNwTtl{ttl: 0..0xFF}
@spec ofpat() :: 23
def ofpat, do: 23
@doc """
Create a new set_nw_ttl action struct
## Options:
- IP TTL
```elixir
iex> %SetNwTtl{ttl: 64} = SetNwTtl.new(_ttl = 64)
```
"""
@spec new(ttl :: 0..0xFF) :: t()
def new(ttl) do
%SetNwTtl{ttl: ttl}
end
@spec to_binary(t()) :: <<_::16, _::_*8>>
def to_binary(%SetNwTtl{ttl: ttl}) do
<<23::16, 8::16, ttl::8, 0::size(3)-unit(8)>>
end
@spec read(<<_::16, _::_*8>>) :: t()
def read(<<23::16, 8::16, ttl::8, _::size(3)-unit(8)>>) do
%SetNwTtl{ttl: ttl}
end
end