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osmo-ttcn3-hacks
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pcu: Introduce tests for CS and PS paging from SGSN/Gb 

CS Gb paging and PTP CS/PS paging implemented in osmo-pcu:
I9501e02e1d7f6944497e724dbccb9a19c3f5221f
I5c52b5af740460c48bb3ba858243b1d20e624268

Related: OS#3927, OS#2406
Change-Id: I90b5a792c1d91e38ea7b8c060ff0b459673df951
This commit is contained in:
Pau Espin 2019-12-09 21:12:28 +01:00
parent 7e9178df28
commit 88bf537b35
3 changed files with 171 additions and 0 deletions
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16
library/GSM_RR_Types.ttcn
View File

@ -911,6 +911,22 @@ module GSM_RR_Types {
}
};
template GsmRrMessage tr_PAG_REQ1(template MobileIdentityLV mi1 := ?) := {
header := t_RrHeader(PAGING_REQUEST_TYPE_1, ?),
payload := {
pag_req_1 := {
chan_needed := {
second := ?,
first := ?
},
page_mode := PAGE_MODE_NORMAL,
mi1 := mi1,
mi2 := omit,
rest_octets := ?
}
}
};
template (value) GsmRrL3Message ts_MEAS_REP(boolean valid, uint6_t rxl_f, uint6_t rxl_s,
uint3_t rxq_f, uint3_t rxq_s,
template (omit) NcellReports reps) := {

44
library/Osmocom_Gb_Types.ttcn
View File

@ -1121,6 +1121,18 @@ octetstring sdu) := {
delay_Value := f_oct_or_wc(delay, 2)
}
template DRX_Parameters t_defaultDRXparam := {
iEI := '0A'O,
ext := '1'B,
lengthIndicator := {
length1 := 2
},
splitPG_CycleCode := '00'O,
nonDRXTimer := '000'B,
splitOnCCCH := '0'B,
cnSpecificDRXCycleLength := '0000'B
}
template PDU_BSSGP ts_BSSGP_DL_UD(GprsTlli tlli, octetstring pdu) := {
pDU_BSSGP_DL_UNITDATA := {
bssgpPduType := '00'O,
@ -1220,6 +1232,38 @@ octetstring sdu) := {
}
}
template PDU_BSSGP tr_BSSGP_CS_PAGING(BssgpBvci bvci) := {
pDU_BSSGP_PAGING_CS := {
bssgpPduType := '07'O,
iMSI := ?,
dRX_Parameters := ?,
paging_Field4 := {
bVCI := t_BSSGP_BVCI(bvci)
},
tLLI := *,
channel_needed := *,
eMLPP_Priority := *,
tMSI := *,
global_CN_Id := *
}
}
template PDU_BSSGP ts_BSSGP_CS_PAGING_IMSI(BssgpBvci bvci, hexstring imsi) := {
pDU_BSSGP_PAGING_CS := {
bssgpPduType := '07'O,
iMSI := ts_BSSGP_IMSI(imsi),
dRX_Parameters := t_defaultDRXparam,
paging_Field4 := {
bVCI := t_BSSGP_BVCI(bvci)
},
tLLI := omit,
channel_needed := omit,
eMLPP_Priority := omit,
tMSI := omit,
global_CN_Id := omit
}
}
template PDU_BSSGP tr_BSSGP_PS_PAGING(BssgpBvci bvci) := {
pDU_BSSGP_PAGING_PS := {
bssgpPduType := '06'O,

111
pcu/PCU_Tests_RAW.ttcn
View File

@ -738,6 +738,24 @@ runs on RAW_PCU_Test_CT {
fn := 0, arfcn := 871, sapi := PCU_IF_SAPI_PCH, data := macblock));
}
/* Expect a Paging Request Type 1 from PCU on PCUIF on specified sapi. */
private function f_pcuif_rx_pch_pag_req1(out GsmRrMessage rr_pag_req1)
runs on RAW_PCU_Test_CT {
var PCUIF_Message pcu_msg;
var octetstring macblock;
BTS.receive(tr_PCUIF_DATA_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 0,
sapi := PCU_IF_SAPI_PCH)) -> value pcu_msg;
/* First 3 bytes contain paging group: */
macblock := substr(pcu_msg.u.data_req.data, 3, pcu_msg.u.data_req.len - 3);
rr_pag_req1 := dec_GsmRrMessage(macblock);
if (not match(rr_pag_req1, tr_PAG_REQ1())) {
setverdict(fail, "Failed to match Paging Request Type 1: ", rr_pag_req1);
mtc.stop;
}
BTS.send(ts_PCUIF_DATA_CNF(bts_nr := 0, trx_nr := 0, ts_nr := 0, block_nr := 0,
fn := pcu_msg.u.data_req.fn, arfcn := 871, sapi := PCU_IF_SAPI_PCH, data := macblock));
}
private function f_tx_rlcmac_ul_block(template (value) RlcmacUlBlock ul_data, int16_t lqual_cb := 0, uint32_t fn := 0)
runs on RAW_PCU_Test_CT {
var octetstring data;
@ -1666,6 +1684,95 @@ testcase TC_paging_cs_from_bts() runs on RAW_PCU_Test_CT {
setverdict(pass);
}
/* Test CS paging over Gb (SGSN->PCU->BTS[PDCH]).
*/
private function f_tc_paging_cs_from_sgsn(Nsvci bvci) runs on RAW_PCU_Test_CT {
var GsmRrMessage rr_imm_ass;
var PacketUlAssign ul_tbf_ass;
var RlcmacDlBlock dl_block;
var boolean ok;
var OCT4 tlli := '00000001'O;
var MobileIdentityLV_Paging mi_res;
var hexstring imsi := f_gen_imsi(42);
/* Initialize NS/BSSGP side */
f_init_bssgp();
/* Initialize the PCU interface abstraction */
f_init_raw(testcasename());
/* Establish BSSGP connection to the PCU */
f_bssgp_establish();
f_bssgp_client_llgmm_assign('FFFFFFFF'O, tlli);
/* Establish an Uplink TBF */
ok := f_establish_tbf(rr_imm_ass);
if (not ok) {
setverdict(fail, "Failed to establish TBF");
mtc.stop;
}
ok := f_imm_ass_verify_ul_tbf_ass(rr_imm_ass, ul_tbf_ass);
if (not ok) {
setverdict(fail, "Immediate Assignment not an Uplink TBF");
mtc.stop;
}
/* Send paging request */
BSSGP[0].send(ts_BSSGP_CS_PAGING_IMSI(bvci, imsi));
/* Receive it on BTS side towards MS */
f_rx_rlcmac_dl_block_exp_pkt_pag_req(dl_block);
/* FIXME: we must use .ps. here instead of .cs. (the one actually sent)
because TTCN3 counts length up to octet boundary and thinks it's a
PageInfoPs: */
mi_res := dl_block.ctrl.payload.u.paging.repeated_pageinfo.ps.mobile_identity;
setverdict(pass);
}
testcase TC_paging_cs_from_sgsn_sign() runs on RAW_PCU_Test_CT {
f_tc_paging_cs_from_sgsn(0);
}
testcase TC_paging_cs_from_sgsn_ptp() runs on RAW_PCU_Test_CT {
f_tc_paging_cs_from_sgsn(mp_gb_cfg.bvci);
}
/* Test PS paging over Gb (SGSN->PCU->BTS[CCCH]).
*/
private function f_tc_paging_ps_from_sgsn(Nsvci bvci) runs on RAW_PCU_Test_CT {
var GsmRrMessage rr_pag_req1;
var OCT4 tlli := '00000001'O;
var hexstring imsi := f_gen_imsi(42);
/* Initialize NS/BSSGP side */
f_init_bssgp();
/* Initialize the PCU interface abstraction */
f_init_raw(testcasename());
/* Establish BSSGP connection to the PCU */
f_bssgp_establish();
f_bssgp_client_llgmm_assign('FFFFFFFF'O, tlli);
/* Send paging request */
BSSGP[0].send(ts_BSSGP_PS_PAGING_IMSI(bvci, imsi));
/* Receive it on BTS side towards MS */
f_pcuif_rx_pch_pag_req1(rr_pag_req1);
setverdict(pass);
}
testcase TC_paging_ps_from_sgsn_sign() runs on RAW_PCU_Test_CT {
f_tc_paging_ps_from_sgsn(0);
}
testcase TC_paging_ps_from_sgsn_ptp() runs on RAW_PCU_Test_CT {
f_tc_paging_ps_from_sgsn(mp_gb_cfg.bvci);
}
control {
execute( TC_ns_reset() );
execute( TC_ns_reset_retrans() );
@ -1688,6 +1795,10 @@ control {
execute( TC_mo_ping_pong() );
execute( TC_imm_ass_dl_block_retrans() );
execute( TC_paging_cs_from_bts() );
execute (TC_paging_cs_from_sgsn_sign() );
execute (TC_paging_cs_from_sgsn_ptp() );
execute (TC_paging_ps_from_sgsn_sign() );
execute (TC_paging_ps_from_sgsn_ptp() );
}