mgw_nat/src/mgw_nat_usr.erl

60 lines
1.7 KiB
Erlang

% Wrapper code, wrapping sctp_handler.erl into OTP gen_server
% (C) 2011 by Harald Welte <laforge@gnumonks.org>
% (C) 2011 OnWaves
%
% All Rights Reserved
%
% This program is free software; you can redistribute it and/or modify
% it under the terms of the GNU Affero General Public License as
% published by the Free Software Foundation; either version 3 of the
% License, or (at your option) any later version.
%
% This program is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
% GNU General Public License for more details.
%
% You should have received a copy of the GNU Affero General Public License
% along with this program. If not, see <http://www.gnu.org/licenses/>.
-module(mgw_nat_usr).
-author("Harald Welte <laforge@gnumonks.org>").
-behavior(gen_server).
-export([start_link/1, stop/0, sccp_masq_reset/0]).
-export([init/1, handle_cast/2, handle_info/2, terminate/2]).
start_link(Params) ->
gen_server:start_link({local, ?MODULE}, ?MODULE, Params, []).
stop() ->
gen_server:cast(?MODULE, stop).
sccp_masq_reset() ->
gen_server:cast(?MODULE, sccp_masq_reset).
%% Callback functions of the OTP behavior
init(Params) ->
sccp_masq:init(),
apply(sctp_handler, init, Params).
handle_cast(stop, LoopData) ->
{stop, normal, LoopData};
handle_cast(sccp_masq_reset, LoopData) ->
sccp_masq:reset(),
{noreply, LoopData}.
terminate(_Reason, _LoopData) ->
ok.
% callback for other events like incoming SCTP message
handle_info({sctp, Sock, Ip, Port, Data}, LoopData) ->
NewL = sctp_handler:handle_sctp(LoopData, {sctp, Sock, Ip, Port, Data}),
{noreply, NewL}.