gsup: implement a (re-)connect the GSUP link if it fails
Change-Id: Id531d202ded123786d7a41dd0d7c3695af59fc2d
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@ -39,9 +39,13 @@
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-include_lib("osmo_ss7/include/ipa.hrl").
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-define(IPAC_PROTO_EXT_GSUP, {osmo, 5}).
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-define(GSUP_TIMEOUT_MS, 5000).
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-record(gsupc_state, {
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socket,
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address,
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port,
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ccmoptions,
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socket,
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ipa_pid
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}).
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@ -54,43 +58,46 @@
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%% our exported API
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%% ------------------------------------------------------------------
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start_link(ServerAddr, ServerPort, Options) ->
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gen_server:start_link(?MODULE, [ServerAddr, ServerPort, Options], [{debug, [trace]}]).
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start_link(ServerAddr, ServerPort, GsupName) ->
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gen_server:start_link(?MODULE, [ServerAddr, ServerPort, GsupName], [{debug, [trace]}]).
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%% ------------------------------------------------------------------
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%% gen_server Function Definitions
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%% ------------------------------------------------------------------
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init([Address, Port, Options]) ->
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init([Address, Port, GsupName]) ->
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ipa_proto:init(),
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% register the GSUP codec with the IPA core; ignore result as we might be doing this multiple times
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ipa_proto:register_codec(?IPAC_PROTO_EXT_GSUP, fun gsup_protocol:encode/1, fun gsup_protocol:decode/1),
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connect([Address, Port, Options]).
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connect([Address, Port, Options]) ->
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lager:info("Connecting to GSUP HLR on IP ~s port ~p~n", [Address, Port]),
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CcmOptions = #ipa_ccm_options{
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serial_number="HSS-00-00-00-00-00-00",
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unit_id="0/0/0",
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mac_address="00:00:00:00:00:00",
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location="00:00:00:00:00:00",
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unit_type="00:00:00:00:00:00",
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equipment_version="00:00:00:00:00:00",
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sw_version="00:00:00:00:00:00",
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unit_name="HSS-00-00-00-00-00-00"
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},
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case ipa_proto:connect(Address, Port, Options) of
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CcmOptions = #ipa_ccm_options{
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serial_number=GsupName,
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unit_id="0/0/0",
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mac_address="00:00:00:00:00:00",
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location="00:00:00:00:00:00",
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unit_type="00:00:00:00:00:00",
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equipment_version="00:00:00:00:00:00",
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sw_version="00:00:00:00:00:00",
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unit_name=GsupName
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},
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State = #gsupc_state{address = Address, port = Port, ccmoptions = CcmOptions, socket = [], ipa_pid = []},
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case connect(State) of
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{ok, State2} -> {ok, State2};
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{error, _, State2} -> {ok, State2, ?GSUP_TIMEOUT_MS}
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end.
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connect(State) ->
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#gsupc_state{address = Address, port = Port, ccmoptions = Options} = State,
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case ipa_proto:connect(Address, Port, []) of
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{ok, {Socket, IpaPid}} ->
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ipa_proto:set_ccm_options(Socket, CcmOptions),
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ipa_proto:set_ccm_options(Socket, Options),
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lager:info("connected!~n", []),
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true = ipa_proto:register_stream(Socket, ?IPAC_PROTO_EXT_GSUP, {process_id, self()}),
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ipa_proto:unblock(Socket),
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{ok, #gsupc_state{socket=Socket, ipa_pid=IpaPid}};
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{error, Reason} ->
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lager:error("Connecting to GSUP HLR on IP ~s port ~p failed: ~p~n", [Address, Port, Reason]),
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lager:info("Reconnecting to GSUP HLR in 5s...~n", []),
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timer:sleep(5000),
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connect([Address, Port, Options])
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{ok, State#gsupc_state{socket=Socket, ipa_pid=IpaPid}};
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{error, Error} ->
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lager:info("Failed to GSUP HLR on IP ~s port ~p ~p~n", [Address, Port, Error]),
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{error, Error, State}
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end.
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% send a given GSUP message and synchronously wait for message type ExpRes or ExpErr
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@ -102,10 +109,9 @@ handle_call({transceive_gsup, GsupMsgTx, ExpRes, ExpErr}, _From, State) ->
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receive
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{ipa, Socket, ?IPAC_PROTO_EXT_GSUP, GsupMsgRx = #{message_type := ExpRes, imsi := Imsi}} ->
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{reply, GsupMsgRx, State};
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{ipa, Socket, ?IPAC_PROTO_EXT_GSUP, GsupMsgRx = #{message_type := ExpErr, imsi := Imsi}} ->
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{reply, GsupMsgRx, State}
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after 5000 ->
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after ?GSUP_TIMEOUT_MS ->
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{reply, timeout, State}
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end.
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@ -114,8 +120,14 @@ handle_cast(Info, S) ->
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{noreply, S}.
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handle_info({ipa_closed, _}, S) ->
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lager:error("GSUP connection has been closed, supervisor should reconnect us"),
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{stop, ipa_closed, S};
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lager:error("GSUP connection has been closed, Reconnecting in 5sec."),
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{noreply, S, ?GSUP_TIMEOUT_MS};
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handle_info(timeout, S) ->
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case connect(S) of
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{ok, State} -> {noreply, State};
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{error, _, State} -> {noreply, State, ?GSUP_TIMEOUT_MS}
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end;
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handle_info(Info, S) ->
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error_logger:error_report(["unknown handle_info", {module, ?MODULE}, {info, Info}, {state, S}]),
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{noreply, S}.
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@ -12,7 +12,7 @@ init([]) ->
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% GSUP side
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HlrIp = application:get_env(osmo_dia2gsup, hlr_ip, "127.0.0.1"),
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HlrPort = application:get_env(osmo_dia2gsup, hlr_port, 4222),
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Args = [{local, gsup_client}, gsup_client, [HlrIp, HlrPort, []], [{debug, [trace]}]],
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Args = [{local, gsup_client}, gsup_client, [HlrIp, HlrPort, "HSS-00-00-00-00-00-00"], [{debug, [trace]}]],
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GsupChild = {gsup_client, {gen_server, start_link, Args}, permanent, 2000, worker, [gsup_client]},
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% DIAMETER side
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DiaServer = {osmo_dia2gsup,{osmo_dia2gsup,start_link,[]},
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