SUA ASP callback: only deal with ASPSM / ASPTM, not with MGMT

1 files changed, 76 insertions, 0 deletions

diff --git a/src/sua_asp.erl b/src/sua_asp.erl
new file mode 100644
index 0000000..79a4fd3
--- /dev/null
+++ b/src/sua_asp.erl
@@ -0,0 +1,76 @@
+% SCCP SUA ASP xua_asp_fsm callback according to RFC3868 4.3.1
+
+% (C) 2011-2012 by Harald Welte <laforge@gnumonks.org>
+%
+% 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(sua_asp).
+-author('Harald Welte <laforge@gnumonks.org>').
+-behaviour(xua_asp_fsm).
+
+-include("osmo_util.hrl").
+-include("m3ua.hrl").
+-include("sua.hrl").
+
+-export([init/1]).
+
+-export([gen_xua_msg/3, asp_down/3, asp_inactive/3, asp_active/3]).
+
+init([]) ->
+	{ok, we_have_no_state}.
+
+gen_xua_msg(MsgClass, MsgType, Params) ->
+	#sua_msg{version = 1, msg_class = MsgClass, msg_type = MsgType, payload = Params}.
+
+asp_down(#sua_msg{version = 1, msg_class = MsgClass, msg_type = MsgType},
+	 LoopDat, Mld) when MsgClass == ?M3UA_MSGC_ASPSM; MsgClass == ?M3UA_MSGC_ASPTM ->
+	% convert from SUA to xua_msg and call into master module
+	xua_asp_fsm:asp_down({xua_msg, MsgClass, MsgType}, Mld);
+asp_down(SuaMsg, LoopDat, Mld) when is_record(SuaMsg, sua_msg) ->
+	rx_sua(SuaMsg, asp_down, Mld).
+
+asp_inactive(#sua_msg{version = 1, msg_class = MsgClass, msg_type = MsgType},
+	     LoopDat, Mld) when MsgClass == ?M3UA_MSGC_ASPSM; MsgClass == ?M3UA_MSGC_ASPTM ->
+	% convert from SUA to xua_msg and call into master module
+	xua_asp_fsm:asp_inactive({xua_msg, MsgClass, MsgType}, Mld);
+asp_inactive(SuaMsg, LoopDat, Mld) when is_record(SuaMsg, sua_msg) ->
+	rx_sua(SuaMsg, asp_inactive, Mld).
+
+asp_active(#sua_msg{version = 1, msg_class = MsgClass, msg_type = MsgType},
+	   LoopDat, Mld) when MsgClass == ?M3UA_MSGC_ASPSM; MsgClass == ?M3UA_MSGC_ASPTM ->
+	% convert from SUA to xua_msg and call into master module
+	xua_asp_fsm:asp_active({xua_msg, MsgClass, MsgType}, Mld);
+asp_active(SuaMsg, LoopDat, Mld) when is_record(SuaMsg, sua_msg) ->
+	rx_sua(SuaMsg, asp_active, Mld).
+
+
+
+rx_sua(Msg = #sua_msg{version = 1, msg_class = ?M3UA_MSGC_ASPSM,
+		      msg_type = ?M3UA_MSGT_ASPSM_BEAT}, State, LoopDat) ->
+	% Send BEAT_ACK using the same payload as the BEAT msg
+	xua_asp_fsm:send_sctp_to_peer(LoopDat, Msg#sua_msg{msg_type = ?M3UA_MSGT_ASPSM_BEAT_ACK}),
+	{next_state, State, LoopDat};
+
+%rx_sua(Msg = #sua_msg{version = 1, msg_class = ?M3UA_MSGC_SSNM,
+		       %msg_type = MsgType, payload = Params}, State, LoopDat) ->
+	% transform to classic MTP primitive and send up to the user
+	%Mtp = map_ssnm_to_mtp_prim(MsgType),
+	%send_prim_to_user(LoopDat, Mtp),
+	%{next_state, State, LoopDat};
+
+rx_sua(Msg = #sua_msg{}, State, LoopDat) ->
+	io:format("SUA Unknown messge ~p in state ~p~n", [Msg, State]),
+	{next_state, State, LoopDat}.