mgw: Introduce test TC_two_crcx_mdcx_and_iuup_rtp
This test validates we can connect 3G to 2G AMR calls fine. Change-Id: I3627711d80c5e42d56e478c1c4ff3fb5b27adfdf
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@ -2463,7 +2463,7 @@ module MGCP_Test {
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setverdict(pass);
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}
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/* create two local RTP emulations and pass data in both directions */
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/* create two local RTP+IuUP emulations and pass data in both directions */
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function f_tc_two_crcx_mdcx_and_iuup(charstring local_ip_a, charstring remote_ip_a,
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charstring local_ip_b, charstring remote_ip_b) runs on dummy_CT {
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var RtpFlowData flow[2];
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@ -2580,6 +2580,126 @@ module MGCP_Test {
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mp_local_ipv4, mp_remote_ipv4);
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}
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/* create two local emulations (1 RTP, 1 RTP+IuUP) and pass data in both directions */
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function f_tc_two_crcx_mdcx_and_iuup_rtp(charstring local_ip_a, charstring remote_ip_a,
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charstring local_ip_b, charstring remote_ip_b) runs on dummy_CT {
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var RtpFlowData flow[2];
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var RtpemStats stats[2];
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var MgcpResponse resp;
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var MgcpEndpoint ep := c_mgw_ep_rtpbridge & "2@" & c_mgw_domain;
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var MgcpCallId call_id := '1227'H;
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var integer num_pkts_tx[2];
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var integer temp;
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f_init(ep);
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/* Create the first connection in receive only mode (RNC side, IuUP-Init active) */
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flow[0] := valueof(t_RtpFlow(local_ip_a, remote_ip_a, 96, "VND.3GPP.IUFP/16000"));
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flow[0].em.portnr := 10000;
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flow[0].rtp_cfg := c_RtpemDefaultCfg;
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flow[0].rtp_cfg.tx_payload_type := flow[0].pt;
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flow[0].rtp_cfg.tx_fixed_payload := '4f28959ffeb80181f5c4e83d176c897b4a4e333298333419a493ca63ded6e0'O;
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flow[0].rtp_cfg.rx_fixed_payload := '08556d944c71a1a081e7ead204244480000ecd82b81118000097c4794e7740'O; /* flow[1].rtp_cfg.tx_fixed_payload converted AMR-BE-RTP->AMR-IUUP*/
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flow[0].rtp_cfg.iuup_mode := true;
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flow[0].rtp_cfg.iuup_tx_init := true;
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f_flow_create(RTPEM[0], ep, call_id, "recvonly", flow[0], true);
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f_rtpem_mode(RTPEM[0], RTPEM_MODE_RXONLY);
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/* Create the second connection. This connection will be also
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* in receive only mode (CN side, regular RTP) */
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flow[1] := valueof(t_RtpFlow(local_ip_b, remote_ip_b, 112, "AMR/8000"));
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flow[1].em.portnr := 20000;
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flow[1].rtp_cfg := c_RtpemDefaultCfg;
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flow[1].rtp_cfg.tx_payload_type := flow[1].pt;
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flow[1].rtp_cfg.tx_fixed_payload := '0382155b65131c68682079fab4810911200003b360ae0446000025f11e539dd0'O;
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flow[1].rtp_cfg.rx_fixed_payload := 'f3d3ca2567ffae00607d713a0f45db225ed2938ccca60ccd066924f298f7b5b8'O; /* flow[0].rtp_cfg.tx_fixed_payload converted AMR-IuUP->AMR-BE-RTP*/
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flow[1].rtp_cfg.iuup_mode := false;
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f_flow_create(RTPEM[1], ep, call_id, "recvonly", flow[1], true);
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f_rtpem_mode(RTPEM[1], RTPEM_MODE_RXONLY);
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/* The first leg starts transmitting */
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f_rtpem_mode(RTPEM[0], RTPEM_MODE_TXONLY);
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f_sleep(0.5);
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stats[0] := f_rtpem_stats_get(RTPEM[0]);
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if (stats[0].num_pkts_rx_err_disabled != 0) {
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setverdict(fail, "received packets from MGW on recvonly connection 0");
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mtc.stop;
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}
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stats[1] := f_rtpem_stats_get(RTPEM[1]);
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if (stats[1].num_pkts_rx_err_disabled != 0) {
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setverdict(fail, "received packets from MGW on recvonly connection 1");
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mtc.stop;
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}
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/* The second leg starts transmitting a little later */
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f_rtpem_mode(RTPEM[1], RTPEM_MODE_TXONLY);
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f_sleep(1.0);
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stats[0] := f_rtpem_stats_get(RTPEM[0]);
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if (stats[0].num_pkts_rx_err_disabled != 0) {
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setverdict(fail, "received packets from MGW on recvonly connection 0");
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mtc.stop;
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}
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stats[1] := f_rtpem_stats_get(RTPEM[1]);
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if (stats[1].num_pkts_rx_err_disabled != 0) {
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setverdict(fail, "received packets from MGW on recvonly connection 1");
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mtc.stop;
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}
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/* The first leg will now be switched into bidirectional
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* mode, but we do not expect any data coming back yet. */
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f_rtpem_mode(RTPEM[0], RTPEM_MODE_BIDIR);
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stats[1] := f_rtpem_stats_get(RTPEM[1]);
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num_pkts_tx[1] := stats[1].num_pkts_tx;
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f_flow_modify(RTPEM[0], ep, call_id, "sendrecv", flow[0]);
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f_sleep(0.5);
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stats[0] := f_rtpem_stats_get(RTPEM[0]);
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if (stats[0].num_pkts_rx_err_disabled != 0) {
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setverdict(fail, "received packets from MGW on recvonly connection 0");
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mtc.stop;
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}
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stats[1] := f_rtpem_stats_get(RTPEM[1]);
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if (stats[1].num_pkts_rx_err_disabled != 0) {
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setverdict(fail, "received packets from MGW on recvonly connection 1");
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mtc.stop;
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}
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/* When the second leg is switched into bidirectional mode
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* as well, then the MGW will connect the two together and
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* we should see RTP streams passing through from both ends. */
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f_rtpem_mode(RTPEM[1], RTPEM_MODE_BIDIR);
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stats[0] := f_rtpem_stats_get(RTPEM[0]);
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num_pkts_tx[0] := stats[0].num_pkts_tx;
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f_flow_modify(RTPEM[1], ep, call_id, "sendrecv", flow[1]);
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f_sleep(2.0);
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stats[0] := f_rtpem_stats_get(RTPEM[0]);
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stats[1] := f_rtpem_stats_get(RTPEM[1]);
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temp := stats[0].num_pkts_tx - num_pkts_tx[0] - stats[1].num_pkts_rx;
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if (temp > 3 or temp < -3) {
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setverdict(fail, "number of packets not within normal parameters:", temp);
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mtc.stop;
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}
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temp := stats[1].num_pkts_tx - num_pkts_tx[1] - stats[0].num_pkts_rx;
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if (temp > 3 or temp < -3) {
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setverdict(fail, "number of packets not within normal parameters:", temp);
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mtc.stop;
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}
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f_rtpem_stats_err_check(stats[0]);
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f_rtpem_stats_err_check(stats[1]);
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/* Tear down */
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f_flow_delete(RTPEM[0]);
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f_flow_delete(RTPEM[1], ep, call_id);
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setverdict(pass);
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}
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testcase TC_two_crcx_mdcx_and_iuup_rtp() runs on dummy_CT {
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f_tc_two_crcx_mdcx_and_iuup_rtp(mp_local_ipv4, mp_remote_ipv4,
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mp_local_ipv4, mp_remote_ipv4);
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}
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control {
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execute(TC_selftest());
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execute(TC_crcx());
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@ -2655,6 +2775,7 @@ module MGCP_Test {
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execute(TC_two_crcx_mdcx_and_rtp_osmux_ipv6_ipv4());
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execute(TC_two_crcx_mdcx_and_iuup());
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execute(TC_two_crcx_mdcx_and_iuup_rtp());
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/* Note: This testcase will trigger an OSMO_ASSERT() bug in
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* older versions of osmo-mgw. This eventually leads into
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