Change in osmo-ttcn3-hacks[master]: PCU: refactor f_pcuif_rx_imm_ass(): also handle PCH SAPI

[fixeria]

fixeria has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/17967 )


Change subject: PCU: refactor f_pcuif_rx_imm_ass(): also handle PCH SAPI
......................................................................

PCU: refactor f_pcuif_rx_imm_ass(): also handle PCH SAPI

Change-Id: Ia5d162c1d8bbee43a6e9fab784d8675187f15be1
---
M pcu/PCU_Tests_RAW.ttcn
1 file changed, 21 insertions(+), 11 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks refs/changes/67/17967/1

diff --git a/pcu/PCU_Tests_RAW.ttcn b/pcu/PCU_Tests_RAW.ttcn
index 1d13b8e..be15f5a 100644
--- a/pcu/PCU_Tests_RAW.ttcn
+++ b/pcu/PCU_Tests_RAW.ttcn
@@ -237,27 +237,35 @@
 }
 
 private function f_pcuif_rx_imm_ass(out GsmRrMessage rr_imm_ass,
+				    template PCUIF_Sapi sapi := PCU_IF_SAPI_AGCH,
 				    template GsmRrMessage t_imm_ass := ?,
 				    uint8_t bts_nr := 0)
 runs on RAW_PCU_Test_CT return boolean {
 	var PCUIF_Message pcu_msg;
+	var octetstring data;
 	timer T;
 
 	T.start(2.0);
 	alt {
 	[] BTS.receive(tr_PCUIF_DATA_REQ(bts_nr := bts_nr, trx_nr := 0, ts_nr := 0,
-					 sapi := PCU_IF_SAPI_AGCH, data := ?))
-					-> value pcu_msg {
-		rr_imm_ass := dec_GsmRrMessage(pcu_msg.u.data_req.data);
-		log("Rx Immediate Assignment: ", rr_imm_ass);
-
-		if (match(rr_imm_ass, t_imm_ass)) {
-			setverdict(pass);
-			return true;
+					 sapi := sapi, data := ?)) -> value pcu_msg {
+		/* On PCH the payload is prefixed with paging group (3 octets): skip it.
+		 * TODO: add an additional template parameter, so we can match it. */
+		if (pcu_msg.u.data_req.sapi == PCU_IF_SAPI_PCH) {
+			data := substr(pcu_msg.u.data_req.data, 3, pcu_msg.u.data_req.len - 3);
+		} else {
+			data := pcu_msg.u.data_req.data;
 		}
 
-		/* Not for us? Wait for more. */
-		repeat;
+		rr_imm_ass := dec_GsmRrMessage(data);
+		if (not match(rr_imm_ass, t_imm_ass)) {
+			/* Not for us? Wait for more. */
+			repeat;
+		}
+
+		log("Rx Immediate Assignment: ", rr_imm_ass);
+		setverdict(pass);
+		return true;
 		}
 	[] BTS.receive { repeat; }
 	[] T.timeout {
@@ -293,7 +301,9 @@
 	if (is_11bit != 0) { ra := 127; }
 
 	/* Expect Immediate (TBF) Assignment on TS0/AGCH */
-	return f_pcuif_rx_imm_ass(rr_imm_ass, tr_IMM_TBF_ASS(?, ra, fn), bts_nr);
+	return f_pcuif_rx_imm_ass(rr_imm_ass, PCU_IF_SAPI_AGCH,
+				  tr_IMM_TBF_ASS(?, ra, fn),
+				  bts_nr := bts_nr);
 }
 
 private function f_imm_ass_verify_ul_tbf_ass(GsmRrMessage rr_imm_ass, out PacketUlAssign ul_tbf_ass)

-- 
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Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: Ia5d162c1d8bbee43a6e9fab784d8675187f15be1
Gerrit-Change-Number: 17967
Gerrit-PatchSet: 1
Gerrit-Owner: fixeria <axilirator at gmail.com>
Gerrit-MessageType: newchange
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