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-module(acse).

-include("ACSE-1.hrl").
-include("CSTA-application-context-information-csta3.hrl").

-export([associate/0, release/0]).
-export([decode/1, dispatch/1]).

associate() ->
	{ok, UI} = 'CSTA-application-context-information-csta3':encode(
		'ACSEUserInformationForCSTA', {newDefinition,
		#'NewACSEUserInformationForCSTA'{cSTAVersion = [versionFive]}}),
	'ACSE-1':encode('ACSE-apdu', {aarq, #'AARQ-apdu'{
		'protocol-version' = [version1],	% required
		'application-context-name' = {1, 3, 12, 0, 218},
		'user-information' = [#'EXTERNAL'{
			'direct-reference' = {1, 3, 12, 0, 285, 200},
			encoding = {'single-ASN1-type', UI}}]}}).

release() ->
	'ACSE-1':encode('ACSE-apdu', {rlrq, #'RLRQ-apdu'{}}).

decode(Msg) ->
	'ACSE-1':decode('ACSE-apdu', Msg).

dispatch({aare, #'AARE-apdu'{result = Result}}) ->
	case Result of
		accepted -> ok;
		_ -> error
	end;

dispatch({rlre, _}) ->
	ok;

dispatch({abrt, _}) ->
	error.