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This commit is contained in:
Eishun Kondoh 2018-01-30 22:47:31 +09:00
parent 5fc01a9bec
commit 7635272fbd
150 changed files with 5055 additions and 4032 deletions
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66
lib/openflow/actions/nx_flow_spec_match.ex
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@ -2,67 +2,80 @@ defmodule Openflow.Action.NxFlowSpecMatch do
defstruct(
src: nil,
dst: nil,
n_bits: 0,
n_bits: 0,
src_offset: 0,
dst_offset: 0
)
@learn_src_field 0
@learn_src_field 0
@learn_src_immediate 1
@learn_dst 0
@learn_dst 0
alias __MODULE__
def new(options) do
dst = options[:dst]
n_bits = options[:n_bits] || Openflow.Match.Field.n_bits_of(dst)
%NxFlowSpecMatch{src: options[:src],
dst: dst,
n_bits: n_bits,
src_offset: options[:src_offset] || 0,
dst_offset: options[:dst_offset] || 0}
%NxFlowSpecMatch{
src: options[:src],
dst: dst,
n_bits: n_bits,
src_offset: options[:src_offset] || 0,
dst_offset: options[:dst_offset] || 0
}
end
def to_binary(%NxFlowSpecMatch{} = fsm) do
%NxFlowSpecMatch{
dst: dst_field,
n_bits: n_bits,
dst: dst_field,
n_bits: n_bits,
src_offset: src_ofs,
dst_offset: dst_ofs
} = fsm
{src_code, src_bin} = codec_src(fsm)
dst_bin = Openflow.Match.codec_header(dst_field)
case src_code do
@learn_src_immediate ->
<<0::2, src_code::1, @learn_dst::2, n_bits::11,
src_bin::bytes, dst_bin::4-bytes, dst_ofs::16>>
<<0::2, src_code::1, @learn_dst::2, n_bits::11, src_bin::bytes, dst_bin::4-bytes,
dst_ofs::16>>
@learn_src_field ->
<<0::2, src_code::1, @learn_dst::2, n_bits::11,
src_bin::bytes, src_ofs::16, dst_bin::4-bytes, dst_ofs::16>>
<<0::2, src_code::1, @learn_dst::2, n_bits::11, src_bin::bytes, src_ofs::16,
dst_bin::4-bytes, dst_ofs::16>>
end
end
def read(<<_::2, @learn_src_field::1, @learn_dst::2, n_bits::11, src_bin::4-bytes,
src_ofs::16, dst_bin::4-bytes, dst_ofs::16, rest::bitstring>>) do
def read(
<<_::2, @learn_src_field::1, @learn_dst::2, n_bits::11, src_bin::4-bytes, src_ofs::16,
dst_bin::4-bytes, dst_ofs::16, rest::bitstring>>
) do
src = Openflow.Match.codec_header(src_bin)
dst = Openflow.Match.codec_header(dst_bin)
flow_spec = %NxFlowSpecMatch{src: src,
dst: dst,
n_bits: n_bits,
src_offset: src_ofs,
dst_offset: dst_ofs}
flow_spec = %NxFlowSpecMatch{
src: src,
dst: dst,
n_bits: n_bits,
src_offset: src_ofs,
dst_offset: dst_ofs
}
{flow_spec, rest}
end
def read(<<_::2, @learn_src_immediate::1, @learn_dst::2, n_bits::11, binary::bitstring>>) do
rounded_up_len = Openflow.Utils.pad_length(n_bits, 8)
rounded_up_nbits = n_bits + rounded_up_len
<<src_bin::size(rounded_up_nbits)-bits, dst_bin::4-bytes, dst_ofs::16, rest::bitstring>> = binary
<<src_bin::size(rounded_up_nbits)-bits, dst_bin::4-bytes, dst_ofs::16, rest::bitstring>> =
binary
dst = Openflow.Match.codec_header(dst_bin)
src = Openflow.Match.Field.codec(src_bin, dst)
flow_spec = %NxFlowSpecMatch{src: src,
dst: dst,
n_bits: n_bits,
dst_offset: dst_ofs}
flow_spec = %NxFlowSpecMatch{src: src, dst: dst, n_bits: n_bits, dst_offset: dst_ofs}
{flow_spec, rest}
end
@ -72,6 +85,7 @@ defmodule Openflow.Action.NxFlowSpecMatch do
src_bin = Openflow.Match.codec_header(src_field)
{@learn_src_field, src_bin}
end
defp codec_src(%NxFlowSpecMatch{src: src, dst: dst_field}) do
src_bin = Openflow.Match.Field.codec(src, dst_field)
{@learn_src_immediate, src_bin}