| -module(map_codec_tests). |
| -author('Harald Welte <laforge@gnumonks.org>'). |
| |
| -include_lib("eunit/include/eunit.hrl"). |
| |
| -include("map.hrl"). |
| -include_lib("osmo_ss7/include/isup.hrl"). |
| -include_lib("osmo_ss7/include/m2ua.hrl"). |
| -include_lib("osmo_ss7/include/mtp3.hrl"). |
| -include_lib("osmo_ss7/include/sccp.hrl"). |
| |
| % modified version of assertEqual() |
| -define(assertEqualArgs(Expect, Expr, Args), |
| ((fun (__X) -> |
| case (Expr) of |
| __X -> ok; |
| __V -> ?debugFmt("Expected: ~w~nValue: ~w~n", [__X, __V]), |
| .erlang:error({assertEqual_failed, |
| [{module, ?MODULE}, |
| {line, ?LINE}, |
| {expression, (??Expr)}, |
| {expected, __X}, |
| {value, __V}] ++ Args}) |
| end |
| end)(Expect))). |
| -define(_assertEqualArgs(Expect, Expr, Args), ?_test(?assertEqual(Expect, Expr, Args))). |
| |
| -define(TCAP_MSG_BIN, <<100,65,73,4,81,1,2,200,107,42,40,40,6,7,0,17,134,5,1,1,1,160,29,97,27,128,2,7,128,161,9,6,7,4,0,0,1,0,1,3,162,3,2,1,0,163,5,161,3,2,1,0,108,13,163,11,2,1,64,2,1,8,48,3,10,1,0>>). |
| -define(TCAP_MSG_DEC, {'end',{'MapSpecificPDUs_end',[81,1,2,200],{'EXTERNAL',{0,0,17,773,1,1,1},asn1_NOVALUE,asn1_NOVALUE, {'single-ASN1-type', [97,27,128,2,7,128,161,9,6,7,4,0,0,1,0,1,3,162,3,2,1,0,163,5,161,3,2,1,0]}},[{basicROS,{returnError,{'MapSpecificPDUs_end_components_SEQOF_basicROS_returnError',{present,64},{local,8},{'RoamingNotAllowedParam',plmnRoamingNotAllowed,asn1_NOVALUE,asn1_NOVALUE}}}}]}}). |
| |
| parse_test() -> |
| ?assertEqual(?TCAP_MSG_DEC, map_codec:parse_tcap_msg(?TCAP_MSG_BIN)). |
| encode_test() -> |
| ?assertEqual(?TCAP_MSG_BIN, map_codec:encode_tcap_msg(?TCAP_MSG_DEC)). |
| |
| -define(ADDR_DEC, #party_number{nature_of_addr_ind = ?ISUP_ADDR_NAT_INTERNATIONAL, |
| internal_net_num = undefined, |
| number_incompl_ind = undefined, |
| numbering_plan = 0, |
| present_restrict = undefined, |
| screening_ind = undefined, |
| phone_number = [1,2,3,4,5,6,7,8,9,0]}). |
| -define(ADDR_LIST, [144,33,67,101,135,9]). |
| |
| encode_addr_list_test() -> |
| ?assertEqual(?ADDR_LIST, map_codec:encode_addr_string(?ADDR_DEC)). |
| encode_addr_int_test() -> |
| AddrDec = ?ADDR_DEC, |
| ?assertEqual(?ADDR_LIST, map_codec:encode_addr_string(AddrDec#party_number{phone_number=1234567890})). |
| decode_addr_list_test() -> |
| ?assertEqual(?ADDR_DEC, map_codec:parse_addr_string(?ADDR_LIST)). |
| decode_addr_bin_test() -> |
| ?assertEqual(?ADDR_DEC, map_codec:parse_addr_string(list_to_binary(?ADDR_LIST))). |
| |
| |
| pcap_parse_test_() -> |
| { timeout, 5*60, [ fun pcap_parse_t/0 ] }. |
| |
| % parser test for real-world MAP/TCAP data |
| pcap_parse_t() -> |
| Args = [{rewrite_fn, fun pcap_cb/5}], |
| File = "../priv/map.pcap", |
| case file:read_file_info(File) of |
| {ok, _Info} -> |
| {ok, NrPkts} = ?debugTime("PCAP", osmo_ss7_pcap:pcap_apply(File, "", Args)), |
| ?debugFmt("Parsed ~p PCAP packets~n", [NrPkts]); |
| {error, _Reason} -> |
| ?debugFmt("Skipping PCAP based tests as no ~p could be found~n", |
| [File]) |
| end. |
| |
| pcap_cb(sctp, _From, Path, 2, DataBin) -> |
| {ok, M2ua} = m2ua_codec:parse_m2ua_msg(DataBin), |
| M2uaReenc = m2ua_codec:encode_m2ua_msg(M2ua), |
| ?assertEqualArgs(DataBin, M2uaReenc, [{layer, m2ua}, {path, Path}]), |
| handle_m2ua(M2ua, Path), |
| DataBin. |
| |
| handle_m2ua(M2ua = #m2ua_msg{msg_class = ?M2UA_MSGC_MAUP, |
| msg_type = ?M2UA_MAUP_MSGT_DATA, |
| parameters = Params}, Path) -> |
| {_Len, M2uaPayload} = proplists:get_value(16#300, Params), |
| Mtp3 = mtp3_codec:parse_mtp3_msg(M2uaPayload), |
| Mtp3Reenc = mtp3_codec:encode_mtp3_msg(Mtp3), |
| ?assertEqualArgs(M2uaPayload, Mtp3Reenc, [{layer, mtp3}, {path, Path}]), |
| handle_mtp3(Mtp3, Path ++ [M2ua]); |
| handle_m2ua(M2ua = #m2ua_msg{}, _Path) -> |
| M2ua. |
| |
| handle_mtp3(Mtp3 = #mtp3_msg{service_ind = ?MTP3_SERV_SCCP, |
| payload = Payload}, Path) -> |
| {ok, SccpDec} = sccp_codec:parse_sccp_msg(Payload), |
| SccpReenc = sccp_codec:encode_sccp_msg(SccpDec), |
| % We cannot assume that the data is equal due to SCCP allowing |
| % different encodings of the same data. instead we re-decode |
| {ok, SccpReencDec} = sccp_codec:parse_sccp_msg(SccpReenc), |
| ?assertEqualArgs(SccpDec, SccpReencDec, [{layer, sccp}, {path, Path}]), |
| handle_sccp(SccpDec, Path ++ [Mtp3]); |
| handle_mtp3(Mtp3 = #mtp3_msg{}, _Path) -> |
| Mtp3. |
| |
| handle_sccp(S = #sccp_msg{msg_type = ?SCCP_MSGT_UDT, parameters = Params}, Path) -> |
| UserData = proplists:get_value(user_data, Params), |
| PathOut = Path ++ [S], |
| case map_codec:parse_tcap_msg(UserData) of |
| {error, Error} -> |
| ErrTuple = {Error, erlang:get_stacktrace(), []}, |
| ?debugFmt("Path: ~p~nMAP Decode Error: ~w~n", [PathOut, ErrTuple]), |
| erlang:error(ErrTuple); |
| MapDec -> |
| %?debugFmt("~w~n", [MapDec]), |
| case map_codec:encode_tcap_msg(MapDec) of |
| {error, Error} -> |
| ErrTuple = {Error, erlang:get_stacktrace(), [{map_dec, MapDec}]}, |
| ?debugFmt("Path: ~p~nMAP Encode Error: ~w~n", [PathOut, ErrTuple]), |
| erlang:error(ErrTuple); |
| MapReenc -> |
| %?assertEqualArgs(UserData, MapReenc, [{layer, map}, {path, Path}]), |
| MapReencDec = map_codec:parse_tcap_msg(MapReenc), |
| ?assertEqualArgs(MapDec, MapReencDec, [{layer, map}, {path, Path}]) |
| end |
| end, |
| S; |
| handle_sccp(S = #sccp_msg{}, _Path) -> |
| S. |