tres/lib/openflow/multipart/aggregate/request.ex
2019-05-05 23:39:46 +09:00

105 lines
2.8 KiB
Elixir

defmodule Openflow.Multipart.Aggregate.Request do
defstruct(
version: 4,
xid: 0,
# virtual field
datapath_id: nil,
aux_id: nil,
flags: [],
table_id: :all,
out_port: :any,
out_group: :any,
cookie: 0,
cookie_mask: 0,
match: Openflow.Match.new()
)
alias __MODULE__
@type t :: %Request{
version: 4,
datapath_id: String.t(),
aux_id: 0..0xFF | nil,
xid: 0..0xFFFFFFFF,
table_id: 0..0xFF | :all | :max,
out_port: Openflow.Port.no(),
out_group: Openflow.GroupMod.id(),
cookie: 0..0xFFFFFFFFFFFFFFFF,
cookie_mask: 0..0xFFFFFFFFFFFFFFFF,
match: %Openflow.Match{fields: [map()], type: :oxm}
}
@spec ofp_type() :: 18
def ofp_type, do: 18
@spec new(
xid: 0..0xFFFFFFFF,
table_id: 0..0xFF | :all | :max,
out_port: Openflow.Port.no(),
out_group: Openflow.GroupMod.id(),
cookie: 0..0xFFFFFFFFFFFFFFFF,
cookie_mask: 0..0xFFFFFFFFFFFFFFFF,
match: %Openflow.Match{fields: [map()], type: :oxm}
) :: t()
def new(options \\ []) do
%Request{
xid: options[:xid] || 0,
table_id: options[:table_id] || :all,
out_port: options[:out_port] || :any,
out_group: options[:out_group] || :any,
cookie: options[:cookie] || 0,
cookie_mask: options[:cookie_mask] || 0,
match: options[:match] || Openflow.Match.new()
}
end
@spec read(<<_::256, _::_*8>>) :: t()
def read(<<
table_id_int::8,
_::size(3)-unit(8),
out_port_int::32,
out_group_int::32,
_::size(4)-unit(8),
cookie::64,
cookie_mask::64,
match_bin::bytes
>>) do
match =
match_bin
|> Openflow.Match.read()
|> Kernel.elem(0)
%Request{
table_id: Openflow.Utils.get_enum(table_id_int, :table_id),
out_port: Openflow.Utils.get_enum(out_port_int, :openflow13_port_no),
out_group: Openflow.Utils.get_enum(out_group_int, :group_id),
cookie: cookie,
cookie_mask: cookie_mask,
match: match
}
end
@spec to_binary(t()) :: <<_::256, _::_*8>>
def to_binary(
%Request{
table_id: table_id,
out_port: out_port,
out_group: out_group,
cookie: cookie,
cookie_mask: cookie_mask,
match: match
} = msg
) do
<<
Openflow.Multipart.Request.header(msg)::bytes,
Openflow.Utils.get_enum(table_id, :table_id)::8,
0::size(3)-unit(8),
Openflow.Utils.get_enum(out_port, :openflow13_port_no)::32,
Openflow.Utils.get_enum(out_group, :group_id)::32,
0::size(4)-unit(8),
cookie::64,
cookie_mask::64,
Openflow.Match.to_binary(match)::bytes
>>
end
end