bts: Extend LAPDm test suite with a number of new tests
This adds the following test cases to BTS_Tests_LAPDm.ttcn: * TC_sabm_retransmit_bts() * TC_sabm_invalid_resp() * TC_sabm_dm() * TC_establish_ign_first_sabm() * TC_iframe_seq_and_ack() * TC_iframe_timer_recovery() Change-Id: I4e1136c0c0f10d5bc8d01e826ae5d92f17a0b2aa
This commit is contained in:
parent
e6f071fe57
commit
2f2b2b7f95
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@ -61,9 +61,11 @@ import from MobileL3_GMM_SM_Types all;
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import from Osmocom_VTY_Functions all;
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import from TELNETasp_PortType all;
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import from BTS_Tests_LAPDm all;
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friend module BTS_Tests_SMSCB;
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friend module BTS_Tests_virtphy;
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friend module BTS_Tests_LAPDm;
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/* The tests assume a BTS with the following timeslot configuration:
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* TS0 : Combined CCCH + SDCCH/4
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@ -155,7 +157,7 @@ type component test_CT extends CTRL_Adapter_CT {
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}
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/* an individual call / channel */
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type component ConnHdlr extends RSL_DchanHdlr {
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type component ConnHdlr extends RSL_DchanHdlr, lapdm_test_CT {
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port L1CTL_PT L1CTL;
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port TRXC_CODEC_PT BTS_TRXC;
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@ -551,7 +553,7 @@ function f_rsl_chan_deact() runs on ConnHdlr {
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"RF CHAN REL", true);
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}
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private template ConnHdlrPars t_Pars(template RslChannelNr chan_nr,
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friend template ConnHdlrPars t_Pars(template RslChannelNr chan_nr,
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template RSL_IE_ChannelMode chan_mode,
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float t_guard := 20.0) := {
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chan_nr := valueof(chan_nr),
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@ -699,7 +701,7 @@ testcase TC_chan_act_wrong_nr() runs on test_CT {
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}
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/* execute the same callback function on a variety of logical channels */
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private function f_testmatrix_each_chan(ConnHdlrPars pars, void_fn fn) runs on test_CT {
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friend function f_testmatrix_each_chan(ConnHdlrPars pars, void_fn fn) runs on test_CT {
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var ConnHdlr vc_conn;
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f_init();
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@ -4,7 +4,9 @@ import from GSM_Types all;
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import from Osmocom_Types all;
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import from LAPDm_RAW_PT all;
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import from LAPDm_Types all;
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import from RSL_Types all;
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import from BTS_Tests all;
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import from Misc_Helpers all;
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/* test that use exclusively only LAPDm over L1CTL */
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type component lapdm_test_CT {
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@ -14,8 +16,6 @@ type component lapdm_test_CT {
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/* contrary to BTS_Tests.ttcn, we use LAPDm_PT here, a convenience wrapper
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* around L1CTL to perform encode/decode of abstract LAPDm frames */
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type component lapdm_bts_CT extends lapdm_test_CT, test_CT {
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}
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/*********************************************************************************
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* Test using only L1CTL/LAPDm
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@ -34,9 +34,15 @@ function f_lapdm_init() runs on lapdm_test_CT {
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lapdm_component.start(LAPDmStart());
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}
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function f_lapdm_exit() runs on lapdm_test_CT {
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lapdm_component.stop;
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lapdm_component.done;
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unmap(lapdm_component:L1CTL, system:L1CTL);
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}
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/* master function establishing a dedicated radio channel (takes care of RACH/IMM.ASS handling) */
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function f_establish_dcch() runs on lapdm_test_CT {
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var BCCH_tune_req tune_req := { arfcn := { false, 871 }, combined_ccch := true };
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var BCCH_tune_req tune_req := { arfcn := { false, mp_trx0_arfcn }, combined_ccch := true };
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var DCCH_establish_req est_req := { ra := 23 };
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LAPDM.send(tune_req);
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@ -44,6 +50,16 @@ function f_establish_dcch() runs on lapdm_test_CT {
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LAPDM.receive(DCCH_establish_res:?);
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}
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/* master function switching to a dedicated radio channel */
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function f_switch_dcch(Arfcn arfcn, RslChannelNr chan_nr, GsmTsc tsc) runs on lapdm_test_CT {
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var BCCH_tune_req tune_req := { arfcn := arfcn, combined_ccch := true };
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var DCCH_switch_req sw_req := { arfcn, chan_nr, tsc };
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LAPDM.send(tune_req);
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LAPDM.send(sw_req);
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LAPDM.receive(DCCH_switch_res:?);
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}
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/* helper function releasing dedicated radio channel physically (no Um signaling!) */
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function f_release_dcch() runs on lapdm_test_CT {
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var DCCH_release_req rel_req := {};
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@ -252,6 +268,434 @@ testcase TC_foo() runs on lapdm_test_CT {
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log("DEC: ", dec_LapdmFrameAB('0303012B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B'O));
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}
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/*********************************************************************************
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* Test using both L1CTL/LAPDm and RSL
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*********************************************************************************/
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private function fp_common_init() runs on ConnHdlr
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{
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/* undo what f_start_handler is doing and pull LAPDm_CT into the loop */
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unmap(self:L1CTL, system:L1CTL);
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f_lapdm_init();
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/* activate the channel on the BTS side */
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f_rsl_chan_act(g_pars.chan_mode, false, {});
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/* activate the channel on the MS side */
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f_switch_dcch({false, mp_trx0_arfcn}, g_chan_nr, 7);
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}
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private function fp_common_fini() runs on ConnHdlr
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{
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f_release_dcch();
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f_rsl_chan_deact();
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f_lapdm_exit();
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}
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/* Verify that the BTS is re-transmitting SABM messages after T200 timeout, inspired
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by 3GPP TS 51.010-1 25.2.1.1.2.1 + 25.2.1.2.4 */
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private function f_TC_sabm_retransmit_bts(charstring id) runs on ConnHdlr {
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const integer sapi := 3; /* BTS may not establish SAPI=0 outbound */
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fp_common_init();
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LAPDM.clear;
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RSL.send(ts_RSL_EST_REQ(g_chan_nr, ts_RslLinkID_DCCH(sapi)));
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timer T := 8.0;
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var integer sabm_received := 0;
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T.start;
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alt {
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[] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_SABM(sapi, ?, ?, ''O))) {
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sabm_received := sabm_received + 1;
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repeat;
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}
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[] LAPDM.receive { repeat; }
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[] T.timeout { }
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}
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if (sabm_received == 0) {
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setverdict(fail, "No SABM observed at all!");
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} else if (sabm_received != 6) {
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setverdict(fail, "Incorrect number of SABM re-transmissions of observed: ",
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sabm_received);
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} else {
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setverdict(pass, "Received ", sabm_received, " SABM");
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}
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fp_common_fini();
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}
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testcase TC_sabm_retransmit_bts() runs on test_CT {
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var ConnHdlrPars pars := valueof(t_Pars(t_RslChanNr_Bm(1), ts_RSL_ChanMode_SIGN));
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f_testmatrix_each_chan(pars, refers(f_TC_sabm_retransmit_bts));
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}
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type record LapdmNamedFrame {
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charstring name,
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LapdmFrame lapdm
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};
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/* Test that the BTS will ignore receipt of frames other than a UA when
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* received in response to the SABM frame, inspired from 3GPP TS 51.010-1
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* Section 25.2.1.1.2.3 */
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private function f_TC_sabm_invalid_resp2(charstring id, LapdmNamedFrame err_frame) runs on ConnHdlr {
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var integer sapi := err_frame.lapdm.ab.addr.sapi;
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fp_common_init();
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/* Establish Request via RSL; Expect SABM on LAPDm side */
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LAPDM.clear;
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RSL.send(ts_RSL_EST_REQ(g_chan_nr, ts_RslLinkID_DCCH(sapi)));
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alt {
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[] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_SABM(sapi, ?, ?, ''O)));
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[] LAPDM.receive { repeat; }
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}
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/* send erroneous response to SABM */
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LAPDM.send(t_PH_DATA(0, false, err_frame.lapdm));
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/* expect a SABM retransmission of the BTS */
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timer T := 3.0;
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T.start;
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alt {
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[] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_SABM(sapi, ?, ?, ''O))) {
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setverdict(pass);
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}
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[] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_UI(0, ?, ''O))) { repeat; }
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[] LAPDM.receive(t_PH_DATA(0, false, ?)) {
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setverdict(fail, "Received unexpected LAPDm frame instead of SABM after sending ",
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err_frame.name);
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}
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[] LAPDM.receive { repeat; }
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[] T.timeout {
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setverdict(fail, "Timeout waiting for SABM retransmission after sending ",
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err_frame.name);
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}
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}
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fp_common_fini();
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}
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private function f_TC_sabm_invalid_resp(charstring id) runs on ConnHdlr {
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const integer sapi := 3; /* BTS may not establish SAPI=0 outbound */
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var LapdmNamedFrame err_frame[3] := {
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{ "I", valueof(ts_LAPDm_I(sapi, c_r := cr_MO_CMD, p := true, nr := 0, ns := 0,
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l3 := '01020304'O)) },
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{ "RR", valueof(ts_LAPDm_RR(sapi, c_r := cr_MO_CMD, p := true, nr := 0)) },
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{ "REJ" , valueof(ts_LAPDm_REJ(sapi, c_r := cr_MO_CMD, p := true, nr := 0)) }
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};
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var integer i;
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for (i := 0; i < lengthof(err_frame); i := i+1) {
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f_TC_sabm_invalid_resp2(id, err_frame[i])
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}
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}
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testcase TC_sabm_invalid_resp() runs on test_CT {
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var ConnHdlrPars pars := valueof(t_Pars(t_RslChanNr_Bm(1), ts_RSL_ChanMode_SIGN));
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f_testmatrix_each_chan(pars, refers(f_TC_sabm_invalid_resp));
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}
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/* Test that the BTS will not re-transmit SABM frames after receiving a DM response,
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* inspired from 3GPP TS 51.010-1 Section 25.2.1.1.3 */
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private function f_TC_sabm_dm(charstring id) runs on ConnHdlr {
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const integer sapi := 3; /* BTS may not establish SAPI=0 outbound */
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fp_common_init();
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/* Establish Request via RSL; Expect SABM on LAPDm side */
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LAPDM.clear;
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RSL.send(ts_RSL_EST_REQ(g_chan_nr, ts_RslLinkID_DCCH(sapi)));
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alt {
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[] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_SABM(sapi, ?, ?, ''O)));
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[] LAPDM.receive { repeat; }
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}
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/* send DM response to SABM */
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RSL.clear;
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LAPDM.send(t_PH_DATA(0, false, ts_LAPDm_DM(sapi, c_r:=cr_MO_RSP, f:=true)));
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alt {
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[] RSL.receive(tr_RSL_REL_IND(g_chan_nr, tr_RslLinkID_DCCH(sapi)));
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[] RSL.receive { repeat; }
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}
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/* expect no SABM retransmission of the BTS */
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timer T := 3.0;
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T.start;
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alt {
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[] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_SABM(sapi, ?, ?, ''O))) {
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setverdict(fail, "Received unexpected SABM retransmission");
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}
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[] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_UI(0, ?, ''O))) { repeat; }
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[] LAPDM.receive(t_PH_DATA(0, false, ?)) {
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setverdict(fail, "Received unexpected LAPDm frame");
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}
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[] LAPDM.receive { repeat; }
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[] T.timeout {
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setverdict(pass);
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}
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}
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fp_common_fini();
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}
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testcase TC_sabm_dm() runs on test_CT {
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var ConnHdlrPars pars := valueof(t_Pars(t_RslChanNr_Bm(1), ts_RSL_ChanMode_SIGN));
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f_testmatrix_each_chan(pars, refers(f_TC_sabm_dm));
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}
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/* Test the full LAPDm establishment while simulating the loss of the initial SABM or UA
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* frame, requiring the BTS to re-transmit one SABM and then following up all the way to
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* dedicated mode; inspired by 3GPP TS 51.010-1 25.2.1.2.2 */
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private function f_TC_establish_ign_first_sabm(charstring id) runs on ConnHdlr {
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const integer sapi := 3; /* BTS may not establish SAPI=0 outbound */
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var integer num_sabm := 0;
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var RslLinkId link_id := valueof(ts_RslLinkID_DCCH(sapi));
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timer T := 3.0;
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fp_common_init();
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/* Establish Request via RSL */
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LAPDM.clear;
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RSL.send(ts_RSL_EST_REQ(g_chan_nr, link_id));
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/* Expect two SABM (retransmit) */
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T.start;
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alt {
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[] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_SABM(sapi, ?, ?, ''O))) {
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num_sabm := num_sabm + 1;
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if (num_sabm < 2) {
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repeat;
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}
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}
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[] LAPDM.receive { repeat; }
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}
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/* send UA response to SABM */
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RSL.clear;
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LAPDM.send(t_PH_DATA(0, false, ts_LAPDm_UA(sapi, c_r:=cr_MO_RSP, f:=true, l3:=''O)));
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alt {
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[] RSL.receive(tr_RSL_EST_CONF(g_chan_nr, link_id));
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[] RSL.receive { repeat; }
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}
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/* Send I frame from BTS to MS */
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var octetstring l3 := f_rnd_octstring(10);
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RSL.send(ts_RSL_DATA_REQ(g_chan_nr, link_id, l3));
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alt {
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[] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_I(sapi, c_r:=cr_MT_CMD, p:=false,
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nr:=0, ns:=0, l3:=l3)));
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[] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_UI(0, ?, ''O))) { repeat; }
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[] LAPDM.receive(t_PH_DATA(0, true, ?)) { repeat; }
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[] LAPDM.receive { setverdict(fail, "Unexpected LAPDm received"); }
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}
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/* Send RR frame in response */
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LAPDM.send(t_PH_DATA(0, false, ts_LAPDm_RR(sapi, c_r:=cr_MO_RSP, p:=false, nr:=1)));
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/* expect idle UI Frame from BTS */
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alt {
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[] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_UI(0, ?, ''O))) {
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setverdict(pass);
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}
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[] LAPDM.receive(t_PH_DATA(0, true, ?)) { repeat; }
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[] LAPDM.receive { setverdict(fail, "Unexpected LAPDm received"); }
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}
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fp_common_fini();
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}
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testcase TC_establish_ign_first_sabm() runs on test_CT {
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var ConnHdlrPars pars := valueof(t_Pars(t_RslChanNr_Bm(1), ts_RSL_ChanMode_SIGN));
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f_testmatrix_each_chan(pars, refers(f_TC_establish_ign_first_sabm));
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}
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/* ignore all SACCH frames */
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private altstep as_lapdm_acch() runs on ConnHdlr {
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[] LAPDM.receive(t_PH_DATA(0, true, ?)) { repeat; }
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}
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/* ignore all LAPDm idle frames (UI) */
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private altstep as_lapdm_idle() runs on ConnHdlr {
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[] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_UI(0, ?, ''O))) { repeat; }
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}
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/* ignore all measurement reports */
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private altstep as_rsl_meas_rep() runs on ConnHdlr {
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[] RSL.receive(tr_RSL_MEAS_RES(g_chan_nr)) { repeat; }
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}
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/* fail if we receive an RSL ERROR IND */
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private altstep as_rsl_fail_err() runs on ConnHdlr {
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var RSL_Message rx_rsl;
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[] RSL.receive(tr_RSL_ERROR_IND(g_chan_nr, ?, ?)) {
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setverdict(fail, "Received RSL ERROR IND ", rx_rsl);
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}
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}
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/* all of the above */
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private altstep as_ignore_background() runs on ConnHdlr {
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[] as_lapdm_acch();
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[] as_lapdm_idle();
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[] as_rsl_meas_rep();
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[] as_rsl_fail_err();
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}
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/* Test the operation of Layer 2 sequence numbering.
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* dedicated mode; inspired by 3GPP TS 51.010-1 25.2.2.1 */
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private function f_TC_iframe_seq_and_ack(charstring id) runs on ConnHdlr {
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const integer sapi := 0;
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var RslLinkId link_id := valueof(ts_RslLinkID_DCCH(sapi));
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var octetstring l3 := f_rnd_octstring(18);
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var default d;
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timer T := 3.0;
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fp_common_init();
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/* some common altstep for meas res and other background noise */
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d := activate(as_ignore_background());
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RSL.clear;
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LAPDM.clear;
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/* MO Establish Request via LADPm: SAPI = 0, C = 0, P = 1, M = 0, 0 ≤ L ≤ N201.. */
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LAPDM.send(t_PH_DATA(0, false, ts_LAPDm_SABM(sapi, c_r:=cr_MO_CMD, p:=true, l3:=l3)));
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RSL.receive(tr_RSL_EST_IND(g_chan_nr, link_id, l3));
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/* UA: SAPI = 0, R = 0, F = 1, M = 0, L = L of SABM. */
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LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_UA(sapi, cr_MT_RSP, f:=true, l3:=l3)));
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var integer last_ns_rx := 0;
|
||||
|
||||
for (var integer i := 0; i < 10; i := i+1) {
|
||||
var octetstring l3_mo := f_rnd_octstring(12);
|
||||
var octetstring l3_mt := f_rnd_octstring(12);
|
||||
var LAPDm_ph_data pd;
|
||||
|
||||
log("Starting iteration ", i);
|
||||
/* MT I frame */
|
||||
RSL.send(ts_RSL_DATA_REQ(g_chan_nr, link_id, l3_mt));
|
||||
alt {
|
||||
/* SAPI = 0, R = 1, F = 0, M = 0, L = 0. */
|
||||
[] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_RR(sapi, c_r:=cr_MT_RSP, p:=false,
|
||||
nr:=i mod 8))) {
|
||||
log("Ignoring RR in iteration ", i);
|
||||
repeat;
|
||||
}
|
||||
/* SAPI = 0, C = 1, P = 0, M = 0, 0 ≤ L ≤ N201. */
|
||||
[] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_I(sapi, c_r:=cr_MT_CMD, p:=false,
|
||||
nr:=i mod 8, ns:=i mod 8,
|
||||
l3:=l3_mt))) -> value pd {
|
||||
last_ns_rx := pd.lapdm.ab.ctrl.i.n_s;
|
||||
}
|
||||
}
|
||||
/* respond with MO I-frame: SAPI = 0, C = 0, P = 0, M = 0, 0 <= L <= N201. */
|
||||
LAPDM.send(t_PH_DATA(0, false, ts_LAPDm_I(sapi, c_r:=cr_MO_CMD, p:=false,
|
||||
nr:=(last_ns_rx+1)mod 8,
|
||||
ns:=i mod 8, l3 := l3_mo)));
|
||||
RSL.receive(tr_RSL_DATA_IND(g_chan_nr, link_id, l3_mo));
|
||||
}
|
||||
log("Completed iteration");
|
||||
|
||||
deactivate(d);
|
||||
fp_common_fini();
|
||||
}
|
||||
testcase TC_iframe_seq_and_ack() runs on test_CT {
|
||||
var ConnHdlrPars pars := valueof(t_Pars(t_RslChanNr_Bm(1), ts_RSL_ChanMode_SIGN));
|
||||
f_testmatrix_each_chan(pars, refers(f_TC_iframe_seq_and_ack));
|
||||
}
|
||||
|
||||
/* To test that the BTS is able to respond to I frames whilst in the timer recovery state.
|
||||
* Inspired by 3GPP TS 51.010-1 25.2.2.2 */
|
||||
|
||||
/*
|
||||
1) The BTS is brought into the multiple frame established state
|
||||
2) The MS sends an L3 Request asking for IMEI to the MS.
|
||||
3) The BTS shall respond with a RR frame though this may be incorporated with
|
||||
the L3 Response I frame. The MS does not respond to the I frame.
|
||||
4) The BTS shall wait for expiry of timer T200 and then repeat the I frame but
|
||||
with the P bit set to 1.
|
||||
5) The MS then sends a valid L3 Request I frame asking for IMEI which
|
||||
does not acknowledge receipt of the I frame from the BTS.
|
||||
On the FACCH the BTS may send an RR frame acknowledging the I frame.
|
||||
6) The BTS shall repeat the I frame, this frame will acknowledge receipt of
|
||||
the second I frame from the MS.
|
||||
7) The MS then acknowledges receipt of the MS I frame by sending a RR frame.
|
||||
8) The BTS shall send the next I frame. The MS acknowledges this I frame.
|
||||
*/
|
||||
private function f_TC_iframe_timer_recovery(charstring id) runs on ConnHdlr {
|
||||
const integer sapi := 0;
|
||||
var RslLinkId link_id := valueof(ts_RslLinkID_DCCH(sapi));
|
||||
var default d;
|
||||
timer T := 3.0;
|
||||
|
||||
fp_common_init();
|
||||
|
||||
/* some common altstep for meas res and other background noise */
|
||||
d := activate(as_ignore_background());
|
||||
RSL.clear;
|
||||
LAPDM.clear;
|
||||
|
||||
var octetstring l3_mo := f_rnd_octstring(12);
|
||||
var octetstring l3_mt := f_rnd_octstring(12);
|
||||
|
||||
/* 1) The BTS is brought into the multiple frame established state */
|
||||
|
||||
/* MO Establish Request via LADPm: SAPI = 0, C = 0, P = 1, M = 0, 0 ≤ L ≤ N201.. */
|
||||
LAPDM.send(t_PH_DATA(0, false, ts_LAPDm_SABM(sapi, c_r:=cr_MO_CMD, p:=true, l3:=l3_mo)));
|
||||
RSL.receive(tr_RSL_EST_IND(g_chan_nr, link_id, l3_mo));
|
||||
/* UA: SAPI = 0, R = 0, F = 1, M = 0, L = L of SABM. */
|
||||
LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_UA(sapi, cr_MT_RSP, f:=true, l3:=l3_mo)));
|
||||
|
||||
/* 2) The MS sends an L3 Request to the BTS */
|
||||
l3_mo := f_rnd_octstring(18);
|
||||
/* SAPI = 0, C = 1, P = 0, M = 0, 0 ≤ L ≤ N201, N(S) = 0, N(R) = 0. * */
|
||||
LAPDM.send(t_PH_DATA(0, false, ts_LAPDm_I(sapi, c_r:=cr_MO_CMD, p:=false,
|
||||
nr:=0, ns:=0, l3:=l3_mo)));
|
||||
RSL.receive(tr_RSL_DATA_IND(g_chan_nr, link_id, l3_mo));
|
||||
/* 3) The BTS shall respond with a RR frame though this may be incorporated with
|
||||
the L3 Response I frame. The MS does not respond to the I frame. */
|
||||
RSL.send(ts_RSL_DATA_REQ(g_chan_nr, link_id, l3_mt));
|
||||
alt {
|
||||
/* SAPI = 0, R = 1, F = 0, M = 0, L = 0, N(R) = 1. */
|
||||
[] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_RR(sapi, c_r:=cr_MT_RSP, p:=false, nr:=1))) {
|
||||
repeat;
|
||||
}
|
||||
/* SAPI = 0, C = 0, P = 0, M = 0, 0 ≤ L ≤ N201, N(R) = 1, N(S) = 0 */
|
||||
[] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_I(sapi, c_r:=cr_MT_CMD, p:=false,
|
||||
nr:=1, ns:=0, l3:=l3_mt)));
|
||||
}
|
||||
|
||||
/* 4) The BTS shall wait for expiry of timer T200 and then repeat the I frame but
|
||||
with the P bit set to 1. */
|
||||
/* SAPI = 0, C = 0, P = 1, M = 0, 0 ≤ L ≤ N201, N(R) = 1, N(S) = 0. * */
|
||||
LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_I(sapi, c_r:=cr_MT_CMD, p:=true,
|
||||
nr:=1, ns:=0, l3:=l3_mt)));
|
||||
|
||||
/* 5) The MS then sends a valid L3 Request I frame asking for IMEI which
|
||||
does not acknowledge receipt of the I frame from the BTS. */
|
||||
/* SAPI = 0, C = 1, P = 0, M = 0, 0 ≤ L ≤ N201, N(S) = 1, N(R) = 0. * */
|
||||
LAPDM.send(t_PH_DATA(0, false, ts_LAPDm_I(sapi, c_r:=cr_MO_CMD, p:=false,
|
||||
nr:=0, ns:=1, l3 := l3_mo)));
|
||||
RSL.receive(tr_RSL_DATA_IND(g_chan_nr, link_id, l3_mo));
|
||||
alt {
|
||||
/* On the FACCH the BTS may send an RR frame acknowledging the I frame. */
|
||||
/* SAPI = 0, R = 1, F = 0, M = 0, L = 0, N(R) = 2. */
|
||||
[] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_RR(sapi, c_r:=cr_MT_RSP, p:=false, nr:=2))) {
|
||||
repeat;
|
||||
}
|
||||
/* 6) The BTS shall repeat the I frame, this frame will acknowledge
|
||||
receipt of the second I frame from the MS. */
|
||||
/* SAPI = 0, C = 0, P = 1, M = 0, 0 ≤ L ≤ N201, N(R) = 2, N(S) = 0. * */
|
||||
[] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_I(sapi, c_r:=cr_MT_CMD, p:=true,
|
||||
nr:=2, ns:=0, l3:=l3_mt)));
|
||||
}
|
||||
|
||||
/* 7) The MS then acknowledges receipt of the BTS I frame by sending a RR * frame. */
|
||||
/* SAPI = 0, R = 0, F = 1, 0, M = 0, L = 0, N(R) = 1 */
|
||||
LAPDM.send(t_PH_DATA(0, false, ts_LAPDm_RR(sapi, c_r:=cr_MO_RSP, p:=true, nr:=1)));
|
||||
|
||||
/* 8) The BTS shall send the next I frame. The MS acknowledges this I frame. */
|
||||
l3_mt := f_rnd_octstring(16);
|
||||
RSL.send(ts_RSL_DATA_REQ(g_chan_nr, link_id, l3_mt));
|
||||
/* SAPI = 0, C = 0, P = 0, M = 0, 0 ≤ L ≤ N201, N(R) = 2, N(S) = 1 */
|
||||
LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_I(sapi, c_r:=cr_MT_CMD, p:=false,
|
||||
nr:=2, ns:=1, l3:=l3_mt)));
|
||||
LAPDM.send(t_PH_DATA(0, false, ts_LAPDm_RR(sapi, c_r:=cr_MO_RSP, p:=true, nr:=2)));
|
||||
|
||||
deactivate(d);
|
||||
fp_common_fini();
|
||||
}
|
||||
testcase TC_iframe_timer_recovery() runs on test_CT {
|
||||
var ConnHdlrPars pars := valueof(t_Pars(t_RslChanNr_Bm(1), ts_RSL_ChanMode_SIGN));
|
||||
f_testmatrix_each_chan(pars, refers(f_TC_iframe_timer_recovery));
|
||||
}
|
||||
|
||||
|
||||
|
||||
control {
|
||||
execute(TC_foo());
|
||||
execute(TC_sabm_ua_dcch_sapi0());
|
||||
|
|
@ -260,6 +704,12 @@ control {
|
|||
execute(TC_sabm_ua_dcch_sapi4());
|
||||
execute(TC_sabm_contention());
|
||||
execute(TC_sabm_retransmit());
|
||||
execute(TC_sabm_retransmit_bts());
|
||||
execute(TC_sabm_invalid_resp());
|
||||
execute(TC_sabm_dm());
|
||||
execute(TC_establish_ign_first_sabm());
|
||||
execute(TC_iframe_seq_and_ack());
|
||||
execute(TC_iframe_timer_recovery());
|
||||
}
|
||||
|
||||
}
|
||||
|
|
|
|||
|
|
@ -105,7 +105,7 @@ module LAPDm_Types {
|
|||
s := { n_r := nr, p_f := pf, s := '00'B }
|
||||
};
|
||||
template (value) LapdmCtrl ts_LapdmCtrlRR(uint3_t nr, boolean pf) := {
|
||||
s := { n_r := nr, p_f := pf, s := '00'B }
|
||||
s := { n_r := nr, p_f := pf, s := '00'B, spare := '01'B }
|
||||
};
|
||||
|
||||
template LapdmCtrl tr_LapdmCtrlRNR(template uint3_t nr, template boolean pf) modifies tr_LapdmCtrlS := {
|
||||
|
|
@ -115,6 +115,10 @@ module LAPDm_Types {
|
|||
template LapdmCtrl tr_LapdmCtrlREJ(template uint3_t nr, template boolean pf) modifies tr_LapdmCtrlS := {
|
||||
s := { n_r := nr, p_f := pf, s := '10'B }
|
||||
};
|
||||
template (value) LapdmCtrl ts_LapdmCtrlREJ(uint3_t nr, boolean pf) := {
|
||||
s := { n_r := nr, p_f := pf, s := '10'B, spare := '01'B }
|
||||
};
|
||||
|
||||
|
||||
template LapdmCtrl tr_LapdmCtrlSABM(template boolean p) := {
|
||||
u := { u := '001'B, p_f := p, u2 := '11'B, spare := '11'B }
|
||||
|
|
@ -126,6 +130,9 @@ module LAPDm_Types {
|
|||
template LapdmCtrl tr_LapdmCtrlDM(template boolean f) := {
|
||||
u := { u := '000'B, p_f := f, u2 := '11'B, spare := '11'B }
|
||||
};
|
||||
template (value) LapdmCtrl ts_LapdmCtrlDM(boolean f) := {
|
||||
u := { u := '000'B, p_f := f, u2 := '11'B, spare := '11'B }
|
||||
};
|
||||
|
||||
template LapdmCtrl tr_LapdmCtrlUI(template boolean p := false) := {
|
||||
u := { u := '000'B, p_f := p, u2 := '00'B, spare := '11'B }
|
||||
|
|
@ -261,6 +268,28 @@ module LAPDm_Types {
|
|||
}
|
||||
}
|
||||
|
||||
template (value) LapdmFrame ts_LAPDm_DM(LapdmSapi sapi, boolean c_r, boolean f) := {
|
||||
ab := {
|
||||
addr := ts_LapdmAddr(sapi, c_r),
|
||||
ctrl := ts_LapdmCtrlDM(f),
|
||||
len := 0, /* overwritten in encoder */
|
||||
m := false,
|
||||
el := 1,
|
||||
payload := ''O
|
||||
}
|
||||
}
|
||||
template LapdmFrame tr_LAPDm_DM(template LapdmSapi sapi, template boolean c_r,
|
||||
template boolean f) := {
|
||||
ab := {
|
||||
addr := tr_LapdmAddr(sapi, c_r),
|
||||
ctrl := tr_LapdmCtrlDM(f),
|
||||
len := ?,
|
||||
m := false,
|
||||
el := 1,
|
||||
payload := ''O
|
||||
}
|
||||
}
|
||||
|
||||
template LapdmFrame ts_LAPDm_DISC(LapdmSapi sapi, boolean c_r, boolean p) := {
|
||||
ab := {
|
||||
addr := ts_LapdmAddr(sapi, c_r),
|
||||
|
|
@ -368,6 +397,29 @@ module LAPDm_Types {
|
|||
}
|
||||
}
|
||||
|
||||
template LapdmFrame tr_LAPDm_REJ(template LapdmSapi sapi, template boolean c_r,
|
||||
template boolean p, template uint3_t nr) := {
|
||||
ab := {
|
||||
addr := tr_LapdmAddr(sapi, c_r),
|
||||
ctrl := tr_LapdmCtrlREJ(nr, p),
|
||||
len := 0,
|
||||
m := false,
|
||||
el := 1,
|
||||
payload := ''O
|
||||
}
|
||||
}
|
||||
template (value) LapdmFrame ts_LAPDm_REJ(LapdmSapi sapi, boolean c_r,
|
||||
boolean p, uint3_t nr) := {
|
||||
ab := {
|
||||
addr := ts_LapdmAddr(sapi, c_r),
|
||||
ctrl := ts_LapdmCtrlREJ(nr, p),
|
||||
len := 0,
|
||||
m := false,
|
||||
el := 1,
|
||||
payload := ''O
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
} with { encode "RAW"; /*variant "FIELDORDER(msb)" */}
|
||||
|
|
|
|||
Loading…
Reference in New Issue