| module MGCP_Test { |
| import from Osmocom_Types all; |
| import from MGCP_Types all; |
| import from MGCP_Templates all; |
| import from SDP_Types all; |
| import from MGCP_CodecPort all; |
| import from MGCP_CodecPort_CtrlFunct all; |
| import from RTP_CodecPort all; |
| import from RTP_CodecPort_CtrlFunct all; |
| import from RTP_Endpoint all; |
| import from IPL4asp_Types all; |
| |
| /* any variables declared in the component will be available to |
| * all functions that 'run on' the named component, similar to |
| * class members in C++ */ |
| type component dummy_CT { |
| port MGCP_CODEC_PT MGCP; |
| port RTP_CODEC_PT RTP; |
| var boolean initialized := false; |
| var ConnectionId g_mgcp_conn_id := -1; |
| var integer g_trans_id; |
| |
| var RtpEndpoint g_rtp_ep[2]; |
| }; |
| |
| function get_next_trans_id() runs on dummy_CT return MgcpTransId { |
| var MgcpTransId tid := int2str(g_trans_id); |
| g_trans_id := g_trans_id + 1; |
| return tid; |
| } |
| |
| /* all parameters declared here can be modified / overridden by |
| * the config file in the [MODULE_PARAMETERS] section. If no |
| * config file is used or the file doesn't specify them, the |
| * default values assigned below are used */ |
| modulepar { |
| PortNumber mp_local_udp_port := 2727; |
| charstring mp_local_ip := "127.0.0.1"; |
| PortNumber mp_remote_udp_port := 2427; |
| charstring mp_remote_ip := "127.0.0.1"; |
| PortNumber mp_local_rtp_port_base := 10000; |
| } |
| |
| /* initialization function, called by each test case at the |
| * beginning, but 'initialized' variable ensures its body is |
| * only executed once */ |
| private function f_init(template MgcpEndpoint ep := omit) runs on dummy_CT { |
| var Result res; |
| var uint32_t ssrc; |
| if (initialized == false) { |
| initialized := true; |
| |
| /* some random number for the initial transaction id */ |
| g_trans_id := float2int(rnd()*65535.0); |
| map(self:MGCP, system:MGCP_CODEC_PT); |
| /* connect the MGCP test port using the given |
| * source/destionation ip/port and store the connection id in g_mgcp_conn_id |
| * */ |
| res := MGCP_CodecPort_CtrlFunct.f_IPL4_connect(MGCP, mp_remote_ip, mp_remote_udp_port, mp_local_ip, mp_local_udp_port, 0, { udp := {} }); |
| g_mgcp_conn_id := res.connId; |
| |
| map(self:RTP, system:RTP_CODEC_PT); |
| ssrc := float2int(rnd()*4294967296.0); |
| rtp_endpoint_init(g_rtp_ep[0], mp_local_ip, mp_local_rtp_port_base, ssrc); |
| rtp_endpoint_bind(RTP, g_rtp_ep[0]); |
| rtp_endpoint_init(g_rtp_ep[1], mp_local_ip, mp_local_rtp_port_base+2, ssrc); |
| rtp_endpoint_bind(RTP, g_rtp_ep[1]); |
| } |
| |
| if (isvalue(ep)) { |
| /* do a DLCX on all connections of the EP */ |
| f_dlcx_ignore(valueof(ep)); |
| } |
| } |
| |
| testcase TC_selftest() runs on dummy_CT { |
| const charstring c_auep := "AUEP 158663169 ds/e1-1/2@172.16.6.66 MGCP 1.0\r\n"; |
| const charstring c_mdcx3 := "MDCX 18983215 1@mgw MGCP 1.0\r\n"; |
| const charstring c_mdcx3_ret := "200 18983215 OK\r\n" & |
| "I: 1\n" & |
| "\n" & |
| "v=0\r\n" & |
| "o=- 1 23 IN IP4 0.0.0.0\r\n" & |
| "s=-\r\n" & |
| "c=IN IP4 0.0.0.0\r\n" & |
| "t=0 0\r\n" & |
| "m=audio 0 RTP/AVP 126\r\n" & |
| "a=rtpmap:126 AMR/8000\r\n" & |
| "a=ptime:20\r\n"; |
| const charstring c_mdcx4 := "MDCX 18983216 1@mgw MGCP 1.0\r\n" & |
| "M: sendrecv\r" & |
| "C: 2\r\n" & |
| "I: 1\r\n" & |
| "L: p:20, a:AMR, nt:IN\r\n" & |
| "\n" & |
| "v=0\r\n" & |
| "o=- 1 23 IN IP4 0.0.0.0\r\n" & |
| "s=-\r\n" & |
| "c=IN IP4 0.0.0.0\r\n" & |
| "t=0 0\r\n" & |
| "m=audio 4441 RTP/AVP 99\r\n" & |
| "a=rtpmap:99 AMR/8000\r\n" & |
| "a=ptime:40\r\n"; |
| const charstring c_crcx510_ret := "510 23 FAIL\r\n" |
| |
| log(c_auep); |
| log(dec_MgcpCommand(c_auep)); |
| |
| log(c_mdcx3); |
| log(dec_MgcpCommand(c_mdcx3)); |
| |
| log(c_mdcx3_ret); |
| log(dec_MgcpResponse(c_mdcx3_ret)); |
| |
| log(c_mdcx4); |
| log(dec_MgcpCommand(c_mdcx4)); |
| |
| log(ts_CRCX("23", "42@mgw", "sendrecv", '1234'H)); |
| log(enc_MgcpCommand(valueof(ts_CRCX("23", "42@mgw", "sendrecv", '1234'H)))); |
| |
| log(c_crcx510_ret); |
| log(dec_MgcpResponse(c_crcx510_ret)); |
| log(dec_MgcpMessage(c_crcx510_ret)); |
| } |
| |
| /* CRCX test ideas: |
| * x without mandatory CallId |
| * - with forbidden parameters (e.g. Capabilities, PackageList, ... |
| * - CRCX with remote session description and without |
| * |
| * general ideas: |
| * x packetization != 20ms |
| * x invalid mode |
| * x unsupported mode (517) |
| * x bidirectional mode before RemoteConnDesc: 527 |
| * - invalid codec |
| * x retransmission of same transaction |
| * - unsupported LocalConnectionOptions ("b", "a", "e", "gc", "s", "r", "k", ..) |
| */ |
| |
| /* build a receive template for receiving a MGCP message. You |
| * pass the MGCP response template in, and it will generate an |
| * MGCP_RecvFrom template that can match the primitives arriving on the |
| * MGCP_CodecPort */ |
| function tr_MGCP_RecvFrom_R(template MgcpResponse resp) runs on dummy_CT return template MGCP_RecvFrom { |
| var template MGCP_RecvFrom mrf := { |
| connId := g_mgcp_conn_id, |
| remName := mp_remote_ip, |
| remPort := mp_remote_udp_port, |
| locName := mp_local_ip, |
| locPort := mp_local_udp_port, |
| msg := { response := resp } |
| } |
| return mrf; |
| } |
| |
| /* Send a MGCP request + receive a (matching!) response */ |
| function mgcp_transceive_mgw(template MgcpCommand cmd, template MgcpResponse resp := ?) runs on dummy_CT return MgcpResponse { |
| var MgcpMessage msg := { command := valueof(cmd) }; |
| resp.line.trans_id := cmd.line.trans_id; |
| var template MGCP_RecvFrom mrt := tr_MGCP_RecvFrom_R(resp); |
| var MGCP_RecvFrom mrf; |
| timer T := 5.0; |
| |
| MGCP.send(t_MGCP_Send(g_mgcp_conn_id, msg)); |
| T.start; |
| alt { |
| [] MGCP.receive(mrt) -> value mrf { } |
| [] MGCP.receive(tr_MGCP_RecvFrom_R(?)) { setverdict(fail); } |
| [] MGCP.receive { repeat; } |
| [] T.timeout { setverdict(fail); } |
| } |
| T.stop; |
| |
| if (isbound(mrf) and isbound(mrf.msg) and ischosen(mrf.msg.response)) { |
| return mrf.msg.response; |
| } else { |
| var MgcpResponse r := { line := { code := "999", trans_id := valueof(cmd.line.trans_id) } }; |
| return r; |
| } |
| } |
| |
| function extract_conn_id(MgcpResponse resp) return MgcpConnectionId { |
| var integer i; |
| for (i := 0; i < lengthof(resp.params); i := i + 1) { |
| var MgcpParameter par := resp.params[i]; |
| if (par.code == "I") { |
| return str2hex(par.val); |
| } |
| } |
| setverdict(fail); |
| return '00000000'H; |
| } |
| |
| function f_dlcx(MgcpEndpoint ep, template MgcpResponseCode ret_code, template charstring ret_val, |
| template MgcpCallId call_id := omit, |
| template MgcpConnectionId conn_id := omit) runs on dummy_CT { |
| var template MgcpCommand cmd; |
| var MgcpResponse resp; |
| var template MgcpResponse rtmpl := { |
| line := { |
| code := ret_code, |
| string := ret_val |
| }, |
| params := *, |
| sdp := * |
| }; |
| cmd := ts_DLCX(get_next_trans_id(), ep, call_id, conn_id); |
| resp := mgcp_transceive_mgw(cmd, rtmpl); |
| } |
| |
| /* Send DLCX and expect OK response */ |
| function f_dlcx_ok(MgcpEndpoint ep, template MgcpCallId call_id := omit, |
| template MgcpConnectionId conn_id := omit) runs on dummy_CT { |
| f_dlcx(ep, "200", "OK", call_id, conn_id); |
| } |
| |
| /* Send DLCX and accept any response */ |
| function f_dlcx_ignore(MgcpEndpoint ep, template MgcpCallId call_id := omit, |
| template MgcpConnectionId conn_id := omit) runs on dummy_CT { |
| f_dlcx(ep, ?, *, call_id, conn_id); |
| } |
| |
| /* test valid CRCX without SDP */ |
| testcase TC_crcx() runs on dummy_CT { |
| var template MgcpCommand cmd; |
| var MgcpResponse resp; |
| var MgcpEndpoint ep := "2@mgw"; |
| var MgcpCallId call_id := '1234'H; |
| |
| f_init(ep); |
| |
| /* create the connection on the MGW */ |
| cmd := ts_CRCX(get_next_trans_id(), ep, "recvonly", call_id); |
| resp := mgcp_transceive_mgw(cmd, tr_CRCX_ACK); |
| extract_conn_id(resp); |
| |
| /* clean-up */ |
| f_dlcx_ok(ep, call_id); |
| |
| setverdict(pass); |
| } |
| |
| /* test CRCX with unsupported mode, expect 517 */ |
| testcase TC_crcx_unsupp_mode() runs on dummy_CT { |
| var template MgcpCommand cmd; |
| var MgcpResponse resp; |
| var MgcpEndpoint ep := "2@mgw"; |
| var MgcpCallId call_id := '1233'H; |
| var template MgcpResponse rtmpl := tr_MgcpResp_Err("517"); |
| |
| f_init(ep); |
| |
| cmd := ts_CRCX(get_next_trans_id(), ep, "netwtest", call_id); |
| resp := mgcp_transceive_mgw(cmd, rtmpl); |
| setverdict(pass); |
| } |
| |
| /* test CRCX with early bi-directional mode, expect 527 as |
| * bi-diretional media can only be established once both local and |
| * remote side are specified, see MGCP RFC */ |
| testcase TC_crcx_early_bidir_mode() runs on dummy_CT { |
| var template MgcpCommand cmd; |
| var MgcpResponse resp; |
| var MgcpEndpoint ep := "2@mgw"; |
| var MgcpCallId call_id := '1232'H; |
| var template MgcpResponse rtmpl := tr_MgcpResp_Err("527"); |
| |
| f_init(ep); |
| |
| cmd := ts_CRCX(get_next_trans_id(), ep, "sendrecv", call_id); |
| resp := mgcp_transceive_mgw(cmd, rtmpl); |
| setverdict(pass); |
| } |
| |
| /* test CRCX with unsupported Parameters */ |
| testcase TC_crcx_unsupp_param() runs on dummy_CT { |
| var template MgcpCommand cmd; |
| var MgcpResponse resp; |
| var MgcpEndpoint ep := "2@mgw"; |
| var MgcpCallId call_id := '1231'H; |
| var template MgcpResponse rtmpl := tr_MgcpResp_Err("539"); |
| |
| f_init(ep); |
| |
| cmd := ts_CRCX(get_next_trans_id(), ep, "recvonly", call_id); |
| /* osmo-bsc_mgcp/mgw doesn't implement notifications */ |
| f_mgcp_par_append(cmd.params, MgcpParameter:{ "N", "foobar" }); |
| |
| resp := mgcp_transceive_mgw(cmd, rtmpl); |
| setverdict(pass); |
| } |
| |
| /* test CRCX with missing CallId */ |
| testcase TC_crcx_missing_callid() runs on dummy_CT { |
| var template MgcpCommand cmd; |
| var MgcpResponse resp; |
| var MgcpEndpoint ep := "2@mgw"; |
| var template MgcpResponse rtmpl := tr_MgcpResp_Err("400"); |
| |
| f_init(ep); |
| |
| cmd := ts_CRCX(get_next_trans_id(), ep, "recvonly", '1230'H); |
| cmd.params := { |
| t_MgcpParConnMode("recvonly"), |
| t_MgcpParLocConnOpt("p:20") |
| } |
| resp := mgcp_transceive_mgw(cmd, rtmpl); |
| setverdict(pass); |
| |
| } |
| |
| /* test CRCX with missing Mode */ |
| testcase TC_crcx_missing_mode() runs on dummy_CT { |
| var template MgcpCommand cmd; |
| var MgcpResponse resp; |
| var MgcpEndpoint ep := "2@mgw"; |
| var MgcpCallId call_id := '1229'H; |
| var template MgcpResponse rtmpl := tr_MgcpResp_Err("400"); |
| |
| f_init(ep); |
| |
| cmd := ts_CRCX(get_next_trans_id(), ep, "recvonly", call_id); |
| cmd.params := { |
| ts_MgcpParCallId(call_id), |
| t_MgcpParLocConnOpt("p:20") |
| } |
| resp := mgcp_transceive_mgw(cmd, rtmpl); |
| setverdict(pass); |
| } |
| |
| /* test CRCX with unsupported packetization interval */ |
| testcase TC_crcx_unsupp_packet_intv() runs on dummy_CT { |
| var template MgcpCommand cmd; |
| var MgcpResponse resp; |
| var MgcpEndpoint ep := "2@mgw"; |
| var MgcpCallId call_id := '1228'H; |
| var template MgcpResponse rtmpl := tr_MgcpResp_Err("535"); |
| |
| f_init(ep); |
| |
| cmd := ts_CRCX(get_next_trans_id(), ep, "recvonly", call_id); |
| cmd.params[2] := t_MgcpParLocConnOpt("p:111"); |
| resp := mgcp_transceive_mgw(cmd, rtmpl); |
| setverdict(pass); |
| } |
| |
| /* test CRCX with illegal double presence of local connection option */ |
| testcase TC_crcx_illegal_double_lco() runs on dummy_CT { |
| var template MgcpCommand cmd; |
| var MgcpResponse resp; |
| var MgcpEndpoint ep := "2@mgw"; |
| var MgcpCallId call_id := '1227'H; |
| var template MgcpResponse rtmpl := tr_MgcpResp_Err("524"); |
| |
| f_init(ep); |
| |
| cmd := ts_CRCX(get_next_trans_id(), ep, "recvonly", call_id); |
| /* p:20 is permitted only once and not twice! */ |
| cmd.params[2] := t_MgcpParLocConnOpt("p:20, a:AMR, p:20"); |
| resp := mgcp_transceive_mgw(cmd, rtmpl); |
| setverdict(pass); |
| } |
| |
| /* test valid CRCX with valid SDP */ |
| testcase TC_crcx_sdp() runs on dummy_CT { |
| var template MgcpCommand cmd; |
| var MgcpResponse resp; |
| var MgcpEndpoint ep := "2@mgw"; |
| var MgcpCallId call_id := '1226'H; |
| |
| f_init(ep); |
| |
| cmd := ts_CRCX(get_next_trans_id(), ep, "sendrecv", call_id); |
| cmd.sdp := ts_SDP("127.0.0.1", "127.0.0.2", "23", "42", 2344, { "98" }, |
| { valueof(ts_SDP_rtpmap(98, "AMR/8000")), |
| valueof(ts_SDP_ptime(20)) }); |
| resp := mgcp_transceive_mgw(cmd, tr_CRCX_ACK); |
| setverdict(pass); |
| } |
| |
| /* TODO: various SDP related bits */ |
| |
| |
| /* TODO: CRCX with X-Osmux */ |
| /* TODO: double CRCX without force_realloc */ |
| |
| /* TODO: MDCX (various) */ |
| |
| /* TODO: MDCX without CRCX first */ |
| testcase TC_mdcx_without_crcx() runs on dummy_CT { |
| var template MgcpCommand cmd; |
| var MgcpResponse resp; |
| var MgcpEndpoint ep := "3@mgw"; |
| var MgcpCallId call_id := '1225'H; |
| var template MgcpResponse rtmpl := { |
| line := { |
| /* TODO: accept/enforce better error? */ |
| code := "400", |
| string := ? |
| }, |
| params:= { }, |
| sdp := omit |
| }; |
| |
| f_init(ep); |
| |
| cmd := ts_MDCX(get_next_trans_id(), ep, "sendrecv", call_id, call_id); |
| cmd.sdp := ts_SDP("127.0.0.1", "127.0.0.2", "23", "42", 2344, { "98" }, |
| { valueof(ts_SDP_rtpmap(98, "AMR/8000")), |
| valueof(ts_SDP_ptime(20)) }); |
| resp := mgcp_transceive_mgw(cmd, rtmpl); |
| setverdict(pass); |
| } |
| |
| /* DLCX without CRCX first */ |
| testcase TC_dlcx_without_crcx() runs on dummy_CT { |
| var template MgcpCommand cmd; |
| var MgcpResponse resp; |
| var MgcpEndpoint ep := "4@mgw"; |
| var template MgcpResponse rtmpl := { |
| line := { |
| /* TODO: accept/enforce better error? */ |
| code := "400", |
| string := ? |
| }, |
| params:= { }, |
| sdp := omit |
| }; |
| |
| f_init(ep); |
| |
| cmd := ts_DLCX(get_next_trans_id(), ep, '41234'H); |
| resp := mgcp_transceive_mgw(cmd, rtmpl); |
| setverdict(pass); |
| } |
| |
| /* Test (valid) CRCX followed by (valid) DLCX containig EP+CallId+ConnId */ |
| testcase TC_crcx_and_dlcx_ep_callid_connid() runs on dummy_CT { |
| var template MgcpCommand cmd; |
| var MgcpResponse resp; |
| var MgcpEndpoint ep := "5@mgw"; |
| var MgcpCallId call_id := '51234'H; |
| |
| f_init(ep); |
| |
| cmd := ts_CRCX(get_next_trans_id(), ep, "recvonly", call_id); |
| resp := mgcp_transceive_mgw(cmd, tr_CRCX_ACK); |
| |
| f_dlcx_ok(ep, call_id, extract_conn_id(resp)); |
| |
| setverdict(pass); |
| } |
| |
| /* Test (valid) CRCX followed by (valid) DLCX containing EP+CallId */ |
| testcase TC_crcx_and_dlcx_ep_callid() runs on dummy_CT { |
| var template MgcpCommand cmd; |
| var MgcpResponse resp; |
| var MgcpEndpoint ep := "5@mgw"; |
| var MgcpCallId call_id := '51233'H; |
| |
| f_init(ep); |
| |
| cmd := ts_CRCX(get_next_trans_id(), ep, "recvonly", call_id); |
| resp := mgcp_transceive_mgw(cmd, tr_CRCX_ACK); |
| |
| f_dlcx_ok(ep, call_id); |
| |
| setverdict(pass); |
| } |
| |
| /* Test (valid) CRCX followed by (valid) DLCX containing EP */ |
| testcase TC_crcx_and_dlcx_ep() runs on dummy_CT { |
| var template MgcpCommand cmd; |
| var MgcpResponse resp; |
| var MgcpEndpoint ep := "5@mgw"; |
| var MgcpCallId call_id := '51232'H; |
| |
| f_init(ep); |
| |
| cmd := ts_CRCX(get_next_trans_id(), ep, "recvonly", call_id); |
| resp := mgcp_transceive_mgw(cmd, tr_CRCX_ACK); |
| |
| f_dlcx_ok(ep); |
| |
| setverdict(pass); |
| } |
| |
| |
| /* CRCX + DLCX of valid endpoint but invalid call-id */ |
| testcase TC_crcx_and_dlcx_ep_callid_inval() runs on dummy_CT { |
| var template MgcpCommand cmd; |
| var MgcpResponse resp; |
| var MgcpEndpoint ep := "5@mgw"; |
| var MgcpCallId call_id := '51231'H; |
| |
| f_init(ep); |
| |
| cmd := ts_CRCX(get_next_trans_id(), ep, "recvonly", call_id); |
| resp := mgcp_transceive_mgw(cmd, tr_CRCX_ACK); |
| |
| f_dlcx(ep, "516", *, 'ffff'H); |
| |
| setverdict(pass); |
| } |
| |
| |
| /* CRCX + DLCX of valid endpoint and call-id but invalid conn-id */ |
| testcase TC_crcx_and_dlcx_ep_callid_connid_inval() runs on dummy_CT { |
| var template MgcpCommand cmd; |
| var MgcpResponse resp; |
| var MgcpEndpoint ep := "5@mgw"; |
| var MgcpCallId call_id := '51230'H; |
| |
| f_init(ep); |
| |
| cmd := ts_CRCX(get_next_trans_id(), ep, "recvonly", call_id); |
| resp := mgcp_transceive_mgw(cmd, tr_CRCX_ACK); |
| |
| f_dlcx(ep, "515", *, call_id, 'ffff'H); |
| |
| setverdict(pass); |
| } |
| |
| |
| /* TODO: Double-DLCX (retransmission) */ |
| testcase TC_crcx_and_dlcx_retrans() runs on dummy_CT { |
| var template MgcpCommand cmd; |
| var MgcpResponse resp; |
| var MgcpEndpoint ep := "5@mgw"; |
| var MgcpCallId call_id := '51229'H; |
| var template MgcpResponse rtmpl := { |
| line := { |
| code := "200", |
| string := "OK" |
| }, |
| params:= { }, |
| sdp := omit |
| }; |
| |
| f_init(ep); |
| |
| cmd := ts_CRCX(get_next_trans_id(), ep, "recvonly", call_id); |
| resp := mgcp_transceive_mgw(cmd, tr_CRCX_ACK); |
| |
| cmd := ts_DLCX(get_next_trans_id(), ep, call_id); |
| resp := mgcp_transceive_mgw(cmd, rtmpl); |
| resp := mgcp_transceive_mgw(cmd, rtmpl); |
| |
| setverdict(pass); |
| } |
| |
| |
| |
| /* TODO: Double-DLCX (no retransmission) */ |
| |
| |
| |
| /* TODO: AUEP (various) */ |
| /* TODO: RSIP (various) */ |
| /* TODO: RQNT (various) */ |
| /* TODO: EPCF (various) */ |
| /* TODO: AUCX (various) */ |
| /* TODO: invalid verb (various) */ |
| |
| control { |
| execute(TC_selftest()); |
| execute(TC_crcx()); |
| execute(TC_crcx_unsupp_mode()); |
| execute(TC_crcx_early_bidir_mode()); |
| execute(TC_crcx_unsupp_param()); |
| execute(TC_crcx_missing_callid()); |
| execute(TC_crcx_missing_mode()); |
| execute(TC_crcx_unsupp_packet_intv()); |
| execute(TC_crcx_illegal_double_lco()); |
| execute(TC_crcx_sdp()); |
| execute(TC_mdcx_without_crcx()); |
| execute(TC_dlcx_without_crcx()); |
| execute(TC_crcx_and_dlcx_ep_callid_connid()); |
| execute(TC_crcx_and_dlcx_ep_callid()); |
| execute(TC_crcx_and_dlcx_ep()); |
| execute(TC_crcx_and_dlcx_ep_callid_inval()); |
| execute(TC_crcx_and_dlcx_ep_callid_connid_inval()); |
| execute(TC_crcx_and_dlcx_retrans()); |
| } |
| } |