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pkt_ipv6.erl
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pkt_ipv6.erl
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%% Copyright (c) 2009-2015, Michael Santos <[email protected]>
%% All rights reserved.
%%
%% Redistribution and use in source and binary forms, with or without
%% modification, are permitted provided that the following conditions
%% are met:
%%
%% Redistributions of source code must retain the above copyright
%% notice, this list of conditions and the following disclaimer.
%%
%% Redistributions in binary form must reproduce the above copyright
%% notice, this list of conditions and the following disclaimer in the
%% documentation and/or other materials provided with the distribution.
%%
%% Neither the name of the author nor the names of its contributors
%% may be used to endorse or promote products derived from this software
%% without specific prior written permission.
%%
%% THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
%% "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
%% LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
%% FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
%% COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
%% INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
%% BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
%% LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
%% CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
%% LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
%% ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
%% POSSIBILITY OF SUCH DAMAGE.
-module(pkt_ipv6).
%% RFC 2460: Internet Protocol, Version 6 (IPv6) Specification
-include("pkt_ipproto.hrl").
-include("pkt_ipv6.hrl").
-export([codec/1]).
codec(
<<6:4, Class:8, Flow:20,
Len:16, Next:8, Hop:8,
SA1:16, SA2:16, SA3:16, SA4:16, SA5:16, SA6:16, SA7:16, SA8:16,
DA1:16, DA2:16, DA3:16, DA4:16, DA5:16, DA6:16, DA7:16, DA8:16,
Payload/binary>>
) ->
{#ipv6{
class = Class, flow = Flow,
len = Len, next = Next, hop = Hop,
saddr = {SA1, SA2, SA3, SA4, SA5, SA6, SA7, SA8},
daddr = {DA1, DA2, DA3, DA4, DA5, DA6, DA7, DA8}
}, Payload};
codec(#ipv6{
class = Class, flow = Flow,
len = Len, next = Next, hop = Hop,
saddr = {SA1, SA2, SA3, SA4, SA5, SA6, SA7, SA8},
daddr = {DA1, DA2, DA3, DA4, DA5, DA6, DA7, DA8}
}) ->
<<6:4, Class:8, Flow:20,
Len:16, Next:8, Hop:8,
SA1:16, SA2:16, SA3:16, SA4:16, SA5:16, SA6:16, SA7:16, SA8:16,
DA1:16, DA2:16, DA3:16, DA4:16, DA5:16, DA6:16, DA7:16, DA8:16>>.