  Copyright ( c ) 2012 - 2022 ,   <  >
%% 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    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(icmp6_message).
-include_lib("pkt/include/pkt.hrl").

-export([
    type_to_uint8/1,
    code_to_uint8/1,

    type/1,
    code/1
]).

type_to_uint8(Type) when is_integer(Type) -> Type;
type_to_uint8(Type) when is_atom(Type) -> type(Type).

code_to_uint8(Code) when is_integer(Code) -> Code;
code_to_uint8(Code) when is_atom(Code) -> code(Code).

%%
%% ICMP control message: types
%%
type(?ICMP6_DST_UNREACH) -> dst_unreach;
type(?ICMP6_PACKET_TOO_BIG) -> packet_too_big;
type(?ICMP6_TIME_EXCEEDED) -> time_exceeded;
type(?ICMP6_PARAM_PROB) -> param_prob;
type(?ICMP6_ECHO_REQUEST) -> echo_request;
type(?ICMP6_ECHO_REPLY) -> echo_reply;
type(dst_unreach) -> ?ICMP6_DST_UNREACH;
type(packet_too_big) -> ?ICMP6_PACKET_TOO_BIG;
type(time_exceeded) -> ?ICMP6_TIME_EXCEEDED;
type(param_prob) -> ?ICMP6_PARAM_PROB;
type(echo_request) -> ?ICMP6_ECHO_REQUEST;
type(echo_reply) -> ?ICMP6_ECHO_REPLY.

%%
%% ICMP control message: codes
%%

% destination unreachable
code(dst_unreach_noroute) ->
    ?ICMP6_DST_UNREACH_NOROUTE;
code(dst_unreach_admin) ->
    ?ICMP6_DST_UNREACH_ADMIN;
code(dst_unreach_beyondscope) ->
    ?ICMP6_DST_UNREACH_BEYONDSCOPE;
code(dst_unreach_addr) ->
    ?ICMP6_DST_UNREACH_ADDR;
code(dst_unreach_noport) ->
    ?ICMP6_DST_UNREACH_NOPORT;
% time exceeded
code(time_exceed_transit) ->
    ?ICMP6_TIME_EXCEED_TRANSIT;
code(time_exceed_reassembly) ->
    ?ICMP6_TIME_EXCEED_REASSEMBLY;
% parameter problem
code(paramprob_header) ->
    ?ICMP6_PARAMPROB_HEADER;
code(paramprob_nextheader) ->
    ?ICMP6_PARAMPROB_NEXTHEADER;
code(paramprob_option) ->
    ?ICMP6_PARAMPROB_OPTION;
% destination unreachable
code({?ICMP6_DST_UNREACH, ?ICMP6_DST_UNREACH_NOROUTE}) ->
    dst_unreach_noroute;
code({?ICMP6_DST_UNREACH, ?ICMP6_DST_UNREACH_ADMIN}) ->
    dst_unreach_admin;
code({?ICMP6_DST_UNREACH, ?ICMP6_DST_UNREACH_BEYONDSCOPE}) ->
    dst_unreach_beyondscope;
code({?ICMP6_DST_UNREACH, ?ICMP6_DST_UNREACH_ADDR}) ->
    dst_unreach_addr;
code({?ICMP6_DST_UNREACH, ?ICMP6_DST_UNREACH_NOPORT}) ->
    dst_unreach_noport;
% time exceeded
code({?ICMP6_TIME_EXCEEDED, ?ICMP6_TIME_EXCEED_TRANSIT}) ->
    time_exceed_transit;
code({?ICMP6_TIME_EXCEEDED, ?ICMP6_TIME_EXCEED_REASSEMBLY}) ->
    time_exceed_reassembly;
% parameter problem
code({?ICMP6_PARAM_PROB, ?ICMP6_PARAMPROB_HEADER}) ->
    paramprob_header;
code({?ICMP6_PARAM_PROB, ?ICMP6_PARAMPROB_NEXTHEADER}) ->
    paramprob_nextheader;
code({?ICMP6_PARAM_PROB, ?ICMP6_PARAMPROB_OPTION}) ->
    paramprob_option;
% echo
code({?ICMP6_ECHO_REQUEST, 0}) ->
    echo_request;
code({?ICMP6_ECHO_REPLY, 0}) ->
    echo_reply;
code({Type, Code}) when is_integer(Type), is_integer(Code) ->
    {unknown, Type, Code}.

 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
 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 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.

 ICMP control message: types


 ICMP control message: codes

 destination unreachable
 time exceeded
 parameter problem
 destination unreachable
 time exceeded
 parameter problem
 echo
  Copyright ( c ) 2012 - 2022 ,   <  >
  " AS IS " AND ANY EXPRESS OR IMPLIED WARRANTIES , INCLUDING , BUT NOT
  COPYRIGHT HOLDER OR    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
-module(icmp6_message).
-include_lib("pkt/include/pkt.hrl").

-export([
    type_to_uint8/1,
    code_to_uint8/1,

    type/1,
    code/1
]).

type_to_uint8(Type) when is_integer(Type) -> Type;
type_to_uint8(Type) when is_atom(Type) -> type(Type).

code_to_uint8(Code) when is_integer(Code) -> Code;
code_to_uint8(Code) when is_atom(Code) -> code(Code).

type(?ICMP6_DST_UNREACH) -> dst_unreach;
type(?ICMP6_PACKET_TOO_BIG) -> packet_too_big;
type(?ICMP6_TIME_EXCEEDED) -> time_exceeded;
type(?ICMP6_PARAM_PROB) -> param_prob;
type(?ICMP6_ECHO_REQUEST) -> echo_request;
type(?ICMP6_ECHO_REPLY) -> echo_reply;
type(dst_unreach) -> ?ICMP6_DST_UNREACH;
type(packet_too_big) -> ?ICMP6_PACKET_TOO_BIG;
type(time_exceeded) -> ?ICMP6_TIME_EXCEEDED;
type(param_prob) -> ?ICMP6_PARAM_PROB;
type(echo_request) -> ?ICMP6_ECHO_REQUEST;
type(echo_reply) -> ?ICMP6_ECHO_REPLY.


code(dst_unreach_noroute) ->
    ?ICMP6_DST_UNREACH_NOROUTE;
code(dst_unreach_admin) ->
    ?ICMP6_DST_UNREACH_ADMIN;
code(dst_unreach_beyondscope) ->
    ?ICMP6_DST_UNREACH_BEYONDSCOPE;
code(dst_unreach_addr) ->
    ?ICMP6_DST_UNREACH_ADDR;
code(dst_unreach_noport) ->
    ?ICMP6_DST_UNREACH_NOPORT;
code(time_exceed_transit) ->
    ?ICMP6_TIME_EXCEED_TRANSIT;
code(time_exceed_reassembly) ->
    ?ICMP6_TIME_EXCEED_REASSEMBLY;
code(paramprob_header) ->
    ?ICMP6_PARAMPROB_HEADER;
code(paramprob_nextheader) ->
    ?ICMP6_PARAMPROB_NEXTHEADER;
code(paramprob_option) ->
    ?ICMP6_PARAMPROB_OPTION;
code({?ICMP6_DST_UNREACH, ?ICMP6_DST_UNREACH_NOROUTE}) ->
    dst_unreach_noroute;
code({?ICMP6_DST_UNREACH, ?ICMP6_DST_UNREACH_ADMIN}) ->
    dst_unreach_admin;
code({?ICMP6_DST_UNREACH, ?ICMP6_DST_UNREACH_BEYONDSCOPE}) ->
    dst_unreach_beyondscope;
code({?ICMP6_DST_UNREACH, ?ICMP6_DST_UNREACH_ADDR}) ->
    dst_unreach_addr;
code({?ICMP6_DST_UNREACH, ?ICMP6_DST_UNREACH_NOPORT}) ->
    dst_unreach_noport;
code({?ICMP6_TIME_EXCEEDED, ?ICMP6_TIME_EXCEED_TRANSIT}) ->
    time_exceed_transit;
code({?ICMP6_TIME_EXCEEDED, ?ICMP6_TIME_EXCEED_REASSEMBLY}) ->
    time_exceed_reassembly;
code({?ICMP6_PARAM_PROB, ?ICMP6_PARAMPROB_HEADER}) ->
    paramprob_header;
code({?ICMP6_PARAM_PROB, ?ICMP6_PARAMPROB_NEXTHEADER}) ->
    paramprob_nextheader;
code({?ICMP6_PARAM_PROB, ?ICMP6_PARAMPROB_OPTION}) ->
    paramprob_option;
code({?ICMP6_ECHO_REQUEST, 0}) ->
    echo_request;
code({?ICMP6_ECHO_REPLY, 0}) ->
    echo_reply;
code({Type, Code}) when is_integer(Type), is_integer(Code) ->
    {unknown, Type, Code}.
