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osmo-ttcn3-hacks
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pcu: Check received IMSI suffix from PCUIF paging request 

Change-Id: Ia11447fb71ea0b6a8fcce1a28e93cc166d22ef7a
This commit is contained in:
Pau Espin 2020-01-02 14:06:51 +01:00 committed by pespin
parent 1c9754dc0d
commit 925818ac36
1 changed files with 16 additions and 4 deletions
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20
pcu/PCU_Tests_RAW.ttcn
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@ -366,13 +366,19 @@ runs on RAW_PCU_Test_CT {
} }
/* Expect a Paging Request Type 1 from PCU on PCUIF on specified sapi. */ /* 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) private function f_pcuif_rx_pch_pag_req1(out integer imsi_suff_rx, out GsmRrMessage rr_pag_req1)
runs on RAW_PCU_Test_CT { runs on RAW_PCU_Test_CT {
var PCUIF_Message pcu_msg; var PCUIF_Message pcu_msg;
var octetstring imsi_suff_octstr;
var octetstring macblock; var octetstring macblock;
BTS.receive(tr_PCUIF_DATA_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 0, BTS.receive(tr_PCUIF_DATA_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 0,
sapi := PCU_IF_SAPI_PCH)) -> value pcu_msg; sapi := PCU_IF_SAPI_PCH)) -> value pcu_msg;
/* First 3 bytes contain paging group: */ /* First 3 bytes contain IMSI suffix to calculate paging group: */
imsi_suff_octstr := substr(pcu_msg.u.data_req.data, 0, 3);
imsi_suff_rx := str2int(oct2char(imsi_suff_octstr[0])) * 100 +
str2int(oct2char(imsi_suff_octstr[1])) * 10 +
str2int(oct2char(imsi_suff_octstr[2]));
macblock := substr(pcu_msg.u.data_req.data, 3, pcu_msg.u.data_req.len - 3); macblock := substr(pcu_msg.u.data_req.data, 3, pcu_msg.u.data_req.len - 3);
rr_pag_req1 := dec_GsmRrMessage(macblock); rr_pag_req1 := dec_GsmRrMessage(macblock);
if (not match(rr_pag_req1, tr_PAG_REQ1())) { if (not match(rr_pag_req1, tr_PAG_REQ1())) {
@ -1385,7 +1391,9 @@ testcase TC_paging_cs_from_sgsn_ptp() runs on RAW_PCU_Test_CT {
private function f_tc_paging_ps_from_sgsn(Nsvci bvci) runs on RAW_PCU_Test_CT { private function f_tc_paging_ps_from_sgsn(Nsvci bvci) runs on RAW_PCU_Test_CT {
var GsmRrMessage rr_pag_req1; var GsmRrMessage rr_pag_req1;
var OCT4 tlli := '00000001'O; var OCT4 tlli := '00000001'O;
var hexstring imsi := f_gen_imsi(42); var integer imsi_suff_rx;
var integer imsi_suff_tx := 423;
var hexstring imsi := f_gen_imsi(imsi_suff_tx);
/* Initialize NS/BSSGP side */ /* Initialize NS/BSSGP side */
f_init_bssgp(); f_init_bssgp();
@ -1401,7 +1409,11 @@ private function f_tc_paging_ps_from_sgsn(Nsvci bvci) runs on RAW_PCU_Test_CT {
BSSGP[0].send(ts_BSSGP_PS_PAGING_IMSI(bvci, imsi)); BSSGP[0].send(ts_BSSGP_PS_PAGING_IMSI(bvci, imsi));
/* Receive it on BTS side towards MS */ /* Receive it on BTS side towards MS */
f_pcuif_rx_pch_pag_req1(rr_pag_req1); f_pcuif_rx_pch_pag_req1(imsi_suff_rx, rr_pag_req1);
if (imsi_suff_rx != imsi_suff_tx) {
setverdict(fail, "Wrong IMSI suffix: expected ", imsi_suff_tx, " but received ", imsi_suff_rx);
mtc.stop;
}
setverdict(pass); setverdict(pass);
} }