Change in osmo-ttcn3-hacks[master]: PCU_Tests.ttcn: Use "normal" Osmocom TTCN-3 coding style

Harald Welte gerrit-no-reply at lists.osmocom.org
Wed Mar 27 11:17:50 UTC 2019


Harald Welte has submitted this change and it was merged. ( https://gerrit.osmocom.org/13374 )

Change subject: PCU_Tests.ttcn: Use "normal" Osmocom TTCN-3 coding style
......................................................................

PCU_Tests.ttcn: Use "normal" Osmocom TTCN-3 coding style

Change-Id: I6eaca0ec7fb9c2dc5d59e385bc3a3a8bb85fe23a
---
M pcu/PCU_Tests.ttcn
1 file changed, 534 insertions(+), 534 deletions(-)

Approvals:
  Harald Welte: Looks good to me, approved
  Jenkins Builder: Verified



diff --git a/pcu/PCU_Tests.ttcn b/pcu/PCU_Tests.ttcn
index f63c4ad..09885bd 100644
--- a/pcu/PCU_Tests.ttcn
+++ b/pcu/PCU_Tests.ttcn
@@ -1,318 +1,318 @@
 module PCU_Tests {
 
-	import from General_Types all;
-	import from Osmocom_Types all;
-	import from GSM_Types all;
-	import from GSM_RR_Types all;
-	import from Osmocom_Gb_Types all;
-	import from BSSGP_Types all;
-	import from BSSGP_Emulation all;
-	import from NS_Types all;
-	import from NS_Emulation all;
-	import from LLC_Types all;
-	import from LLC_Templates all;
-	import from RLCMAC_Types all;
-	import from RLCMAC_CSN1_Types all;
-	import from LAPDm_RAW_PT all;
-	import from GPRS_Context all;
-	import from GPRS_TBF all;
-	import from L1CTL_PortType all;
-	import from MobileL3_Types all;
-	import from MobileL3_CommonIE_Types all;
-	import from L3_Templates all;
+import from General_Types all;
+import from Osmocom_Types all;
+import from GSM_Types all;
+import from GSM_RR_Types all;
+import from Osmocom_Gb_Types all;
+import from BSSGP_Types all;
+import from BSSGP_Emulation all;
+import from NS_Types all;
+import from NS_Emulation all;
+import from LLC_Types all;
+import from LLC_Templates all;
+import from RLCMAC_Types all;
+import from RLCMAC_CSN1_Types all;
+import from LAPDm_RAW_PT all;
+import from GPRS_Context all;
+import from GPRS_TBF all;
+import from L1CTL_PortType all;
+import from MobileL3_Types all;
+import from MobileL3_CommonIE_Types all;
+import from L3_Templates all;
 
-	modulepar {
-		BssgpConfig mp_gb_cfg := {
-			nsei := 1234,
-			bvci := 1234,
-			cell_id := {
-				ra_id := {
-					lai := {
-						mcc_mnc := '26242F'H, lac := 13135
-					},
-					rac := 0
+modulepar {
+	BssgpConfig mp_gb_cfg := {
+		nsei := 1234,
+		bvci := 1234,
+		cell_id := {
+			ra_id := {
+				lai := {
+					mcc_mnc := '26242F'H, lac := 13135
 				},
-				cell_id := 20960
+				rac := 0
 			},
-			sgsn_role := true
-		};
+			cell_id := 20960
+		},
+		sgsn_role := true
+	};
 
-		NSConfiguration mp_nsconfig := {
-			local_udp_port := 23000,
-			local_ip := "127.0.0.1",
-			remote_udp_port := 21000,
-			remote_ip := "127.0.0.1",
-			nsvci := 0,
-			nsei := 2342,
-			role_sgsn := true,
-			handle_sns := true
-		};
+	NSConfiguration mp_nsconfig := {
+		local_udp_port := 23000,
+		local_ip := "127.0.0.1",
+		remote_udp_port := 21000,
+		remote_ip := "127.0.0.1",
+		nsvci := 0,
+		nsei := 2342,
+		role_sgsn := true,
+		handle_sns := true
+	};
+}
+
+type component dummy_CT extends BSSGP_Client_CT {
+	var lapdm_CT lapdm_component;
+	port LAPDm_PT L1;
+
+	var NS_CT ns_component;
+	var BSSGP_CT bssgp_component;
+
+	var MmContext g_mmctx := {
+		tlli := 'FFFFFFFF'O,
+		n_u := 0
+	};
+
+	var boolean g_initialized := false;
+}
+
+function f_init() runs on dummy_CT {
+	if (g_initialized == true) {
+		return;
 	}
+	g_initialized := true;
+	/* create a new NS component */
+	ns_component := NS_CT.create;
+	bssgp_component := BSSGP_CT.create;
+	/* connect our BSSGP port to the BSSGP Emulation */
+	connect(self:BSSGP[0], bssgp_component:BSSGP_SP);
+	connect(self:BSSGP_SIG[0], bssgp_component:BSSGP_SP_SIG);
+	connect(self:BSSGP_PROC[0], bssgp_component:BSSGP_PROC);
+	/* connect lower-end of BSSGP with BSSGP_CODEC_PORT (maps to NS_PT*/
+	connect(bssgp_component:BSCP, ns_component:NS_SP);
+	/* connect lower-end of NS emulation to NS_CODEC_PORT (on top of IPl4) */
+	map(ns_component:NSCP, system:NS_CODEC_PORT);
+	ns_component.start(NSStart(mp_nsconfig));
+	bssgp_component.start(BssgpStart(mp_gb_cfg));
 
-	type component dummy_CT extends BSSGP_Client_CT {
-		var lapdm_CT lapdm_component;
-		port LAPDm_PT L1;
+	lapdm_component := lapdm_CT.create;
+	connect(self:L1, lapdm_component:LAPDM_SP);
+	map(lapdm_component:L1CTL, system:L1CTL);
+	lapdm_component.start(LAPDmStart());
 
-		var NS_CT ns_component;
-		var BSSGP_CT bssgp_component;
+	f_bssgp_client_register(g_mmctx.imsi, g_mmctx.tlli, mp_gb_cfg.cell_id);
+	f_bssgp_establish();
+}
 
-		var MmContext g_mmctx := {
-			tlli := 'FFFFFFFF'O,
-			n_u := 0
-		};
+function f_exit() runs on dummy_CT {
+	lapdm_component.stop;
+	ns_component.stop;
+	bssgp_component.stop;
+}
 
-		var boolean g_initialized := false;
+function f_bssgp_dec_and_log(in octetstring inp) {
+	log("BSSGP Input: ", inp);
+	var PDU_BSSGP dec := dec_PDU_BSSGP(inp);
+	log("BSSGP Decoded: ", dec);
+}
+
+testcase TC_selftest_bssgp() runs on dummy_CT {
+	const octetstring c_bvc_reset_pcu := '2204820000078108088832f44000c80051e0'O;
+	const octetstring c_bvc_reset_q := '2204820000078100'O;
+	const octetstring c_status_pcu := '4107810515882204820000078103'O;
+	const octetstring c_reset_ack_q := '2304820000'O;
+	const octetstring c_reset_ack_pcu := '23048200c4'O;
+	const octetstring c_unblock_pcu := '24048200c4'O;
+	const octetstring c_unblock_ack_q := '25048200c4'O;
+	const octetstring c_fc_bvc_pcu := '261e8101058200fa038200c8018200fa1c8200c806820000'O;
+	const octetstring c_fc_bvc_ack_q := '271e8101'O;
+	const octetstring c_gmm_mo_att_req := '01bb146ddd000004088832f44000c80051e000800e003b01c001080103e5e000110a0005f4fb146ddd32f44000c8001d1b53432b37159ef9090070000dd9c6321200e00019b32c642401c0002017057bf0ec'O;
+	const octetstring c_gmm_mt_ac_req := '00bb146ddd0050001682ffff0a8204030e9c41c001081200102198c72477ea104895e8b959acc58b108182f4d045'O;
+	const octetstring c_gmm_mo_ac_resp := '01bb146ddd000004088832f44000c80051e000800e000e01c00508130122fa361f5fdd623d'O;
+	const octetstring c_gmm_mt_att_acc := '00bb146ddd0050001682ffff0a8204030e9841c005080201340432f44000c8001805f4fb146ddd0967d0'O;
+	const octetstring c_gmm_mt_det_req := '00bb146ddd0050001682ffff0a8204030e8941c00908050215f0b6'O;
+	const octetstring c_gmm_mo_att_cpl := '01fb146ddd000004088832f44000c80051e000800e000801c009080339d7bc'O;
+
+	f_bssgp_dec_and_log(c_bvc_reset_pcu);
+	f_bssgp_dec_and_log(c_bvc_reset_q);
+	f_bssgp_dec_and_log(c_status_pcu);
+	f_bssgp_dec_and_log(c_reset_ack_q);
+	f_bssgp_dec_and_log(c_reset_ack_pcu);
+	f_bssgp_dec_and_log(c_unblock_pcu);
+	f_bssgp_dec_and_log(c_unblock_ack_q);
+	f_bssgp_dec_and_log(c_fc_bvc_pcu);
+	f_bssgp_dec_and_log(c_fc_bvc_ack_q);
+	f_bssgp_dec_and_log(c_gmm_mo_att_req);
+	f_bssgp_dec_and_log(c_gmm_mt_ac_req);
+	f_bssgp_dec_and_log(c_gmm_mo_ac_resp);
+	f_bssgp_dec_and_log(c_gmm_mt_att_acc);
+	f_bssgp_dec_and_log(c_gmm_mt_det_req);
+	f_bssgp_dec_and_log(c_gmm_mo_att_cpl);
+
+	log(ts_BSSGP_PS_PAGING_IMSI(196, '262420123456789'H));
+}
+
+function f_ns_assert_prepr(in octetstring a, in octetstring b) {
+	log("NS Input: ", a);
+	log("NS Expected: ", b);
+
+	if (a != b) {
+		setverdict(fail, "Values mismatch", a, b);
+		mtc.stop;
+	} else {
+		setverdict(pass);
 	}
+}
 
-	function f_init() runs on dummy_CT {
-		if (g_initialized == true) {
-			return;
+function f_ns_dec_and_log(in octetstring inp) {
+	log("NS Input: ", inp);
+	var PDU_NS dec := dec_PDU_NS(inp);
+	log("NS Decoded: ", dec);
+}
+
+testcase TC_selftest_ns() runs on dummy_CT {
+	const octetstring c_ns_reset_pcu := '000000c4271e813d'O;
+
+	/* single byte length to two byte length */
+	f_ns_assert_prepr('04058101'O, '0405000101'O);
+	f_ns_assert_prepr('040589000102030405060708'O, '04050009000102030405060708'O);
+	/* two byte length to two byte length */
+	f_ns_assert_prepr('0405000101'O, '0405000101'O);
+	/* special case: NS-UNITDATA */
+	f_ns_assert_prepr('00aabbccddeeffaa29822342'O, '00aabbccddeeffaa2900022342'O);
+	/* multiple TLVs */
+	f_ns_assert_prepr('234281aa4382bbbb'O, '23420001aa430002bbbb'O);
+	/* zero-length */
+	f_ns_assert_prepr('230080'O, '23000000'O);
+
+	f_ns_dec_and_log(c_ns_reset_pcu);
+}
+
+const octetstring gmm_auth_req := '081200102198c72477ea104895e8b959acc58b108182'O;
+
+/* Wrap downlink GMM into LLC, encode + send it via BSSGP to PCU */
+function tx_gmm(BIT1 c_r, in octetstring gmm_pdu, BIT4 sapi := c_LLC_SAPI_LLGMM) runs on dummy_CT {
+	var PDU_LLC llc;
+
+	//log("GMM Tx: ", dec_PDU_L3_SGSN_MS(gmm_pdu));
+
+	log(c_r, g_mmctx.n_u, gmm_pdu, sapi);
+	llc := valueof(ts_LLC_UI(gmm_pdu, sapi, c_r, g_mmctx.n_u));
+	log(llc);
+	g_mmctx.n_u := g_mmctx.n_u + 1;
+
+	log(ts_BSSGP_DL_UD(g_mmctx.tlli, enc_PDU_LLC(llc)));
+
+	BSSGP[0].send(ts_BSSGP_DL_UD(g_mmctx.tlli, enc_PDU_LLC(llc)));
+}
+
+/* Establish BSSGP connection to PCU */
+function f_bssgp_establish() runs on dummy_CT {
+	timer T:= 10.0;
+
+	f_init();
+	T.start
+	alt {
+	[] BSSGP[0].receive(t_BssgpStsInd(?, ?, BVC_S_UNBLOCKED)) { }
+	[] BSSGP[0].receive { repeat; }
+	[] T.timeout {
+		setverdict(fail, "Timeout establishing BSSGP connection");
+		mtc.stop;
 		}
-		g_initialized := true;
-		/* create a new NS component */
-		ns_component := NS_CT.create;
-		bssgp_component := BSSGP_CT.create;
-		/* connect our BSSGP port to the BSSGP Emulation */
-		connect(self:BSSGP[0], bssgp_component:BSSGP_SP);
-		connect(self:BSSGP_SIG[0], bssgp_component:BSSGP_SP_SIG);
-		connect(self:BSSGP_PROC[0], bssgp_component:BSSGP_PROC);
-		/* connect lower-end of BSSGP with BSSGP_CODEC_PORT (maps to NS_PT*/
-		connect(bssgp_component:BSCP, ns_component:NS_SP);
-		/* connect lower-end of NS emulation to NS_CODEC_PORT (on top of IPl4) */
-		map(ns_component:NSCP, system:NS_CODEC_PORT);
-		ns_component.start(NSStart(mp_nsconfig));
-		bssgp_component.start(BssgpStart(mp_gb_cfg));
-
-		lapdm_component := lapdm_CT.create;
-		connect(self:L1, lapdm_component:LAPDM_SP);
-		map(lapdm_component:L1CTL, system:L1CTL);
-		lapdm_component.start(LAPDmStart());
-
-		f_bssgp_client_register(g_mmctx.imsi, g_mmctx.tlli, mp_gb_cfg.cell_id);
-		f_bssgp_establish();
 	}
+	T.stop
+	log("BSSGP successfully initialized");
+}
 
-	function f_exit() runs on dummy_CT {
-		lapdm_component.stop;
-		ns_component.stop;
-		bssgp_component.stop;
-	}
+function f_wait_paging_req_type1(hexstring expected_tmsi) runs on dummy_CT {
+	var LAPDm_ph_data ph_data;
+	timer T := 5.0;
 
-	function f_bssgp_dec_and_log(in octetstring inp) {
-		log("BSSGP Input: ", inp);
-		var PDU_BSSGP dec := dec_PDU_BSSGP(inp);
-		log("BSSGP Decoded: ", dec);
-	}
+	T.start;
+	alt {
+	[] L1.receive(LAPDm_ph_data:{sacch:=?,sapi:=0,lapdm:={bbis:=?}}) -> value ph_data {
+		var octetstring payload := substr(ph_data.lapdm.bbis.payload, 1, lengthof(ph_data.lapdm.bbis.payload) - 1);
+		var PDU_ML3_NW_MS pdu;
 
-	testcase TC_selftest_bssgp() runs on dummy_CT {
-		const octetstring c_bvc_reset_pcu := '2204820000078108088832f44000c80051e0'O;
-		const octetstring c_bvc_reset_q := '2204820000078100'O;
-		const octetstring c_status_pcu := '4107810515882204820000078103'O;
-		const octetstring c_reset_ack_q := '2304820000'O;
-		const octetstring c_reset_ack_pcu := '23048200c4'O;
-		const octetstring c_unblock_pcu := '24048200c4'O;
-		const octetstring c_unblock_ack_q := '25048200c4'O;
-		const octetstring c_fc_bvc_pcu := '261e8101058200fa038200c8018200fa1c8200c806820000'O;
-		const octetstring c_fc_bvc_ack_q := '271e8101'O;
-		const octetstring c_gmm_mo_att_req := '01bb146ddd000004088832f44000c80051e000800e003b01c001080103e5e000110a0005f4fb146ddd32f44000c8001d1b53432b37159ef9090070000dd9c6321200e00019b32c642401c0002017057bf0ec'O;
-		const octetstring c_gmm_mt_ac_req := '00bb146ddd0050001682ffff0a8204030e9c41c001081200102198c72477ea104895e8b959acc58b108182f4d045'O;
-		const octetstring c_gmm_mo_ac_resp := '01bb146ddd000004088832f44000c80051e000800e000e01c00508130122fa361f5fdd623d'O;
-		const octetstring c_gmm_mt_att_acc := '00bb146ddd0050001682ffff0a8204030e9841c005080201340432f44000c8001805f4fb146ddd0967d0'O;
-		const octetstring c_gmm_mt_det_req := '00bb146ddd0050001682ffff0a8204030e8941c00908050215f0b6'O;
-		const octetstring c_gmm_mo_att_cpl := '01fb146ddd000004088832f44000c80051e000800e000801c009080339d7bc'O;
+		if (dec_PDU_ML3_NW_MS_backtrack(payload, pdu) != 0) {
+			repeat;
+		}
 
-		f_bssgp_dec_and_log(c_bvc_reset_pcu);
-		f_bssgp_dec_and_log(c_bvc_reset_q);
-		f_bssgp_dec_and_log(c_status_pcu);
-		f_bssgp_dec_and_log(c_reset_ack_q);
-		f_bssgp_dec_and_log(c_reset_ack_pcu);
-		f_bssgp_dec_and_log(c_unblock_pcu);
-		f_bssgp_dec_and_log(c_unblock_ack_q);
-		f_bssgp_dec_and_log(c_fc_bvc_pcu);
-		f_bssgp_dec_and_log(c_fc_bvc_ack_q);
-		f_bssgp_dec_and_log(c_gmm_mo_att_req);
-		f_bssgp_dec_and_log(c_gmm_mt_ac_req);
-		f_bssgp_dec_and_log(c_gmm_mo_ac_resp);
-		f_bssgp_dec_and_log(c_gmm_mt_att_acc);
-		f_bssgp_dec_and_log(c_gmm_mt_det_req);
-		f_bssgp_dec_and_log(c_gmm_mo_att_cpl);
+		if (not ischosen(pdu.msgs.rrm)) {
+			repeat;
+		}
 
-		log(ts_BSSGP_PS_PAGING_IMSI(196, '262420123456789'H));
-	}
-
-	function f_ns_assert_prepr(in octetstring a, in octetstring b) {
-		log("NS Input: ", a);
-		log("NS Expected: ", b);
-
-		if (a != b) {
-			setverdict(fail, "Values mismatch", a, b);
-			mtc.stop;
-		} else {
+		if (match(pdu, tr_PAGING_REQ1(tr_PAGING_REQ1_MI1_TMSI(hex2oct(expected_tmsi))))) {
 			setverdict(pass);
+		} else {
+			repeat;
 		}
 	}
-
-	function f_ns_dec_and_log(in octetstring inp) {
-		log("NS Input: ", inp);
-		var PDU_NS dec := dec_PDU_NS(inp);
-		log("NS Decoded: ", dec);
+	[] L1.receive { repeat; }
+	[] T.timeout { setverdict(fail); }
 	}
+}
 
-	testcase TC_selftest_ns() runs on dummy_CT {
-		const octetstring c_ns_reset_pcu := '000000c4271e813d'O;
+/* Send PS-PAGING via BSSGP to PCU, expect it to show up on L1/Um */
+testcase TC_paging() runs on dummy_CT {
+	var hexstring tmsi_hex := '01234567'H;
+	var GsmTmsi tmsi := hex2int(tmsi_hex);
 
-		/* single byte length to two byte length */
-		f_ns_assert_prepr('04058101'O, '0405000101'O);
-		f_ns_assert_prepr('040589000102030405060708'O, '04050009000102030405060708'O);
-		/* two byte length to two byte length */
-		f_ns_assert_prepr('0405000101'O, '0405000101'O);
-		/* special case: NS-UNITDATA */
-		f_ns_assert_prepr('00aabbccddeeffaa29822342'O, '00aabbccddeeffaa2900022342'O);
-		/* multiple TLVs */
-		f_ns_assert_prepr('234281aa4382bbbb'O, '23420001aa430002bbbb'O);
-		/* zero-length */
-		f_ns_assert_prepr('230080'O, '23000000'O);
+	g_mmctx.imsi := '262420123456789'H;
+	g_mmctx.tlli := f_random_tlli();
+	f_init();
 
-		f_ns_dec_and_log(c_ns_reset_pcu);
-	}
+	var BCCH_tune_req tune_req := { { false, 871 }, true };
+	L1.send(tune_req);
+	/* FIXME: wait for confirm */
 
-	const octetstring gmm_auth_req := '081200102198c72477ea104895e8b959acc58b108182'O;
+	/* Send paging on signalling BVCI 0 since osmo-pcu does not support paging on PTP yet. */
+	/*
+	TODO: Paging by IMSI does not work yet because osmo-pcu does not copy IMSI into paging requests.
+	BSSGP_SIG[0].send(ts_BSSGP_PS_PAGING_IMSI(0, g_mmctx.imsi));
+	f_wait_paging_req_type1(hex2oct(g_mmctx.imsi));
+	*/
 
-	/* Wrap downlink GMM into LLC, encode + send it via BSSGP to PCU */
-	function tx_gmm(BIT1 c_r, in octetstring gmm_pdu, BIT4 sapi := c_LLC_SAPI_LLGMM) runs on dummy_CT {
-		var PDU_LLC llc;
+	/* Page by TMSI */
+	BSSGP_SIG[0].send(ts_BSSGP_PS_PAGING_PTMSI(0, g_mmctx.imsi, tmsi));
+	f_wait_paging_req_type1(tmsi_hex);
+}
 
-		//log("GMM Tx: ", dec_PDU_L3_SGSN_MS(gmm_pdu));
+/* Establish an UL TBF: Tune to ARFCN, send RACH, receive AGCH, enable TBF Rx */
+function f_establish_ul_tbf() runs on dummy_CT {
+	timer T := 5.0;
+	var BCCH_tune_req tune_req := { { false, 871 }, true };
+	L1.send(tune_req);
+	/* FIXME: wait for confirm */
 
-		log(c_r, g_mmctx.n_u, gmm_pdu, sapi);
-		llc := valueof(ts_LLC_UI(gmm_pdu, sapi, c_r, g_mmctx.n_u));
-		log(llc);
-		g_mmctx.n_u := g_mmctx.n_u + 1;
-
-		log(ts_BSSGP_DL_UD(g_mmctx.tlli, enc_PDU_LLC(llc)));
-
-		BSSGP[0].send(ts_BSSGP_DL_UD(g_mmctx.tlli, enc_PDU_LLC(llc)));
-	}
-
-	/* Establish BSSGP connection to PCU */
-	function f_bssgp_establish() runs on dummy_CT {
-		timer T:= 10.0;
-
-		f_init();
-		T.start
-		alt {
-			[] BSSGP[0].receive(t_BssgpStsInd(?, ?, BVC_S_UNBLOCKED)) { }
-			[] BSSGP[0].receive { repeat; }
-			[] T.timeout {
-				setverdict(fail, "Timeout establishing BSSGP connection");
-				mtc.stop;
-			}
-		}
-		T.stop
-		log("BSSGP successfully initialized");
-	}
-
-	function f_wait_paging_req_type1(hexstring expected_tmsi) runs on dummy_CT {
-		var LAPDm_ph_data ph_data;
-		timer T := 5.0;
-
-		T.start;
-		alt {
-			[] L1.receive(LAPDm_ph_data:{sacch:=?,sapi:=0,lapdm:={bbis:=?}}) -> value ph_data {
-				var octetstring payload := substr(ph_data.lapdm.bbis.payload, 1, lengthof(ph_data.lapdm.bbis.payload) - 1);
-				var PDU_ML3_NW_MS pdu;
-
-				if (dec_PDU_ML3_NW_MS_backtrack(payload, pdu) != 0) {
-					repeat;
-				}
-
-				if (not ischosen(pdu.msgs.rrm)) {
-					repeat;
-				}
-
-				if (match(pdu, tr_PAGING_REQ1(tr_PAGING_REQ1_MI1_TMSI(hex2oct(expected_tmsi))))) {
-					setverdict(pass);
-				} else {
-					repeat;
-				}
-			}
-			[] L1.receive { repeat; }
-			[] T.timeout { setverdict(fail); }
+	var TBF_UL_establish_req est_req := { tbf_nr := 0, ra := hex2int('7B'H) };
+	L1.send(est_req);
+	T.start;
+	/* FIXME: wait for confirm */
+	alt {
+	[] L1.receive(TBF_UL_establish_res:?) {}
+	[] L1.receive { repeat; }
+	[] T.timeout {
+		setverdict(fail, "Timeout establishing UL TBF");
+		mtc.stop;
 		}
 	}
+	T.stop;
+}
 
-	/* Send PS-PAGING via BSSGP to PCU, expect it to show up on L1/Um */
-	testcase TC_paging() runs on dummy_CT {
-		var hexstring tmsi_hex := '01234567'H;
-		var GsmTmsi tmsi := hex2int(tmsi_hex);
+/* compute a random TLLI; FIXME: what about TLLI prefix / local/foreign/...? */
+function f_random_tlli() return GprsTlli {
+	var GprsTlli tlli := f_rnd_octstring(4);
+	return tlli;
+}
 
-		g_mmctx.imsi := '262420123456789'H;
-		g_mmctx.tlli := f_random_tlli();
-		f_init();
-
-		var BCCH_tune_req tune_req := { { false, 871 }, true };
-		L1.send(tune_req);
-		/* FIXME: wait for confirm */
-
-		/* Send paging on signalling BVCI 0 since osmo-pcu does not support paging on PTP yet. */
-		/*
-		TODO: Paging by IMSI does not work yet because osmo-pcu does not copy IMSI into paging requests.
-		BSSGP_SIG[0].send(ts_BSSGP_PS_PAGING_IMSI(0, g_mmctx.imsi));
-		f_wait_paging_req_type1(hex2oct(g_mmctx.imsi));
-		*/
-
-		/* Page by TMSI */
-		BSSGP_SIG[0].send(ts_BSSGP_PS_PAGING_PTMSI(0, g_mmctx.imsi, tmsi));
-		f_wait_paging_req_type1(tmsi_hex);
-	}
-
-	/* Establish an UL TBF: Tune to ARFCN, send RACH, receive AGCH, enable TBF Rx */
-	function f_establish_ul_tbf() runs on dummy_CT {
-		timer T := 5.0;
-		var BCCH_tune_req tune_req := { { false, 871 }, true };
-		L1.send(tune_req);
-		/* FIXME: wait for confirm */
-
-		var TBF_UL_establish_req est_req := { tbf_nr := 0, ra := hex2int('7B'H) };
-		L1.send(est_req);
-		T.start;
-		/* FIXME: wait for confirm */
-		alt {
-			[] L1.receive(TBF_UL_establish_res:?) {}
-			[] L1.receive { repeat; }
-			[] T.timeout {
-				setverdict(fail, "Timeout establishing UL TBF");
-				mtc.stop;
-			}
+/* Compute the frame number of the uplink block based on current fn + rrbp */
+function f_rrbp_fn(GsmFrameNumber fn, MacRrbp rrbp) return GsmFrameNumber {
+	var integer add;
+	select (rrbp) {
+	case (RRBP_Nplus13_mod_2715648) {
+		add := 13;
 		}
-		T.stop;
-	}
-
-	/* compute a random TLLI; FIXME: what about TLLI prefix / local/foreign/...? */
-	function f_random_tlli() return GprsTlli {
-		var GprsTlli tlli := f_rnd_octstring(4);
-		return tlli;
-	}
-
-	/* Compute the frame number of the uplink block based on current fn + rrbp */
-	function f_rrbp_fn(GsmFrameNumber fn, MacRrbp rrbp) return GsmFrameNumber {
-		var integer add;
-		select (rrbp) {
-		case (RRBP_Nplus13_mod_2715648) {
-			add := 13;
-			}
-		case (RRBP_Nplus17_or_18_mod_2715648) {
-			add := 17; /* FIXME: What about 'or 18'? */
-			}
-		case (RRBP_Nplus21_or_22_mod_2715648) {
-			add := 21; /* FIXME: What about 'or 22'? */
-			}
-		case (RRBP_Nplus26_mod_2715648) {
-			add := 26;
-			}
+	case (RRBP_Nplus17_or_18_mod_2715648) {
+		add := 17; /* FIXME: What about 'or 18'? */
 		}
-		return (fn + add) mod 2715648;
+	case (RRBP_Nplus21_or_22_mod_2715648) {
+		add := 21; /* FIXME: What about 'or 22'? */
+		}
+	case (RRBP_Nplus26_mod_2715648) {
+		add := 26;
+		}
 	}
+	return (fn + add) mod 2715648;
+}
 
 
 function f_bssgp_wait_ul_ud(template BssgpDecoded bd_exp) runs on dummy_CT {
@@ -371,304 +371,304 @@
 	L1.send(DCCH_release_req:{});
 }
 
-	testcase TC_rach() runs on dummy_CT {
-		var BssgpBvci bvci := 196;
-		g_mmctx.imsi := '262420123456789'H;
-		g_mmctx.tlli := f_random_tlli();
+testcase TC_rach() runs on dummy_CT {
+	var BssgpBvci bvci := 196;
+	g_mmctx.imsi := '262420123456789'H;
+	g_mmctx.tlli := f_random_tlli();
 
-		f_init();
+	f_init();
 
-		f_bssgp_client_register(g_mmctx.imsi, g_mmctx.tlli, mp_gb_cfg.cell_id);
+	f_bssgp_client_register(g_mmctx.imsi, g_mmctx.tlli, mp_gb_cfg.cell_id);
 
-		f_bssgp_establish();
-	}
+	f_bssgp_establish();
+}
 
 
-	testcase TC_nsem() runs on dummy_CT {
+testcase TC_nsem() runs on dummy_CT {
 
-		f_bssgp_establish();
+	f_bssgp_establish();
 
-		while (true) {
-			var BssgpDecoded bd;
-			alt {
-				[] BSSGP[0].receive(tr_BD_BSSGP(?)) -> value bd {
-					log("BSSGP Rx: ", bd);
-					//log("GMM Rx: ", dec_PDU_L3_MS_SGSN(pdu.payload));
-					g_mmctx.tlli := bd.bssgp.pDU_BSSGP_UL_UNITDATA.tLLI;
-					tx_gmm(LLC_CR_DL_CMD, gmm_auth_req);
-				}
-				[] BSSGP[0].receive(t_BssgpStsInd(?, ?, BVC_S_UNBLOCKED)) { repeat; }
-				[] BSSGP[0].receive { repeat; }
+	while (true) {
+		var BssgpDecoded bd;
+		alt {
+			[] BSSGP[0].receive(tr_BD_BSSGP(?)) -> value bd {
+				log("BSSGP Rx: ", bd);
+				//log("GMM Rx: ", dec_PDU_L3_MS_SGSN(pdu.payload));
+				g_mmctx.tlli := bd.bssgp.pDU_BSSGP_UL_UNITDATA.tLLI;
+				tx_gmm(LLC_CR_DL_CMD, gmm_auth_req);
 			}
+			[] BSSGP[0].receive(t_BssgpStsInd(?, ?, BVC_S_UNBLOCKED)) { repeat; }
+			[] BSSGP[0].receive { repeat; }
 		}
 	}
+}
 
 
-	function f_llc_dec_and_log(in octetstring inp) {
-		log("LLC Input: ", inp);
-		var PDU_LLC dec := dec_PDU_LLC(inp);
-		log("LLC Decoded: ", dec);
+function f_llc_dec_and_log(in octetstring inp) {
+	log("LLC Input: ", inp);
+	var PDU_LLC dec := dec_PDU_LLC(inp);
+	log("LLC Decoded: ", dec);
+}
+
+function f_llc_assert(in octetstring a, in octetstring b) {
+	log("LLC Input: ", a);
+	log("LLC Expected: ", b);
+
+	if (a != b) {
+		setverdict(fail, "LLC input ", b, " != expected ", a);
+		mtc.stop;
+	} else {
+		setverdict(pass);
 	}
+}
 
-	function f_llc_assert(in octetstring a, in octetstring b) {
-		log("LLC Input: ", a);
-		log("LLC Expected: ", b);
 
-		if (a != b) {
-			setverdict(fail, "LLC input ", b, " != expected ", a);
-			mtc.stop;
-		} else {
-			setverdict(pass);
-		}
+testcase TC_selftest_llc() runs on dummy_CT {
+	const octetstring c_gmm_att_pcu := '01c001080103e5e000210a0005f4fb146ddd32f44000c8001d1b53432b37159ef9090070000dd9c6321200e00019b32c642401c00020170580460b'O;
+	const octetstring c_gmm_att_pcu_nofcs := '01c001080103e5e000210a0005f4fb146ddd32f44000c8001d1b53432b37159ef9090070000dd9c6321200e00019b32c642401c000201705'O;
+
+	f_llc_dec_and_log(c_gmm_att_pcu);
+
+	//f_llc_assert(f_LLC_append_fcs(c_gmm_att_pcu_nofcs), c_gmm_att_pcu);
+
+	log(valueof(ts_LLC_UI(gmm_auth_req, c_LLC_SAPI_LLGMM, LLC_CR_DL_CMD, g_mmctx.n_u)));
+	log(ts_LLC_UI(gmm_auth_req, c_LLC_SAPI_LLGMM, LLC_CR_DL_CMD, g_mmctx.n_u));
+}
+
+testcase TC_selftest_rlcmac() runs on dummy_CT {
+	var RlcmacDlCtrlBlock dcb;
+	var RlcmacUlCtrlBlock ucb;
+	const octetstring c_dl_ul_ack_nack := '40240080400000000000000077628dbba14b2b2b2b2b2b'O;
+	const octetstring c_dl_data := '0f00007341c001081200102198c72477ea104895e8b959acc58b108182f4d0454300'O;
+	const octetstring c_dl_data2 := '070002165dc0012b2b2b43c0012b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b00'O;
+	const octetstring c_ul_ctrl_ack := '4006ec51b7772b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b'O;
+	const octetstring c_ul_dl_ack_nack := '4008004000000000000000701000edc0000b2b2b2b2b2b'O;
+	const octetstring c_dl_ul_assign := '482857628dbbaf0126e68800082b2b2b2b2b2b2b2b2b2b'O;
+
+	log(c_dl_ul_ack_nack);
+	dcb := dec_RlcmacDlCtrlBlock(c_dl_ul_ack_nack);
+	log(dcb);
+	//log(dec_RlcmacDlCtrlMsg(dcb.payload));
+
+	f_rlcmac_dld_decenc(c_dl_data);
+
+	f_rlcmac_dld_decenc(c_dl_data2);
+
+	log(c_ul_ctrl_ack);
+	ucb := dec_RlcmacUlCtrlBlock(c_ul_ctrl_ack);
+	log(ucb);
+	//log(dec_RlcmacUlCtrlMsg(ucb.payload));
+
+	log(c_ul_dl_ack_nack);
+	ucb := dec_RlcmacUlCtrlBlock(c_ul_dl_ack_nack);
+	log(ucb);
+	//log(dec_RlcmacUlCtrlMsg(ucb.payload));
+
+	log(c_dl_ul_assign);
+	dcb := dec_RlcmacDlCtrlBlock(c_dl_ul_assign);
+	log(dcb);
+	//log(dec_RlcmacDlCtrlMsg(dcb.payload));
+
+	const octetstring c_uld_tlli_noext := '080101a61cab5201c001080103e5e000310a0005f4e61cab5232f44000c8001d1b00'O;
+	f_rlcmac_uld_decenc(c_uld_tlli_noext);
+
+	const octetstring c_uld_tlli_ext7pad := '0001041da61cab5200201705a96e102b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b00'O;
+	log("ULD_decenc");
+	f_rlcmac_uld_decenc(c_uld_tlli_ext7pad);
+	log("UL_decenc");
+	f_rlcmac_ul_decenc(c_uld_tlli_ext7pad);
+
+	f_rlcmac_ul_decenc(c_ul_dl_ack_nack);
+}
+
+function f_rlcmac_ul_decenc(in octetstring buf) {
+	log("==================================");
+	log("In: ", buf);
+	var RlcmacUlBlock udb := dec_RlcmacUlBlock(buf);
+	log("Dec: ", udb);
+	var octetstring enc := enc_RlcmacUlBlock(udb);
+	log("Enc: ", enc);
+	if (enc != buf) {
+		setverdict(fail, "Re-encoded data doesn't equal input data");
+		mtc.stop;
 	}
+}
 
-
-	testcase TC_selftest_llc() runs on dummy_CT {
-		const octetstring c_gmm_att_pcu := '01c001080103e5e000210a0005f4fb146ddd32f44000c8001d1b53432b37159ef9090070000dd9c6321200e00019b32c642401c00020170580460b'O;
-		const octetstring c_gmm_att_pcu_nofcs := '01c001080103e5e000210a0005f4fb146ddd32f44000c8001d1b53432b37159ef9090070000dd9c6321200e00019b32c642401c000201705'O;
-
-		f_llc_dec_and_log(c_gmm_att_pcu);
-
-		//f_llc_assert(f_LLC_append_fcs(c_gmm_att_pcu_nofcs), c_gmm_att_pcu);
-
-		log(valueof(ts_LLC_UI(gmm_auth_req, c_LLC_SAPI_LLGMM, LLC_CR_DL_CMD, g_mmctx.n_u)));
-		log(ts_LLC_UI(gmm_auth_req, c_LLC_SAPI_LLGMM, LLC_CR_DL_CMD, g_mmctx.n_u));
+function f_rlcmac_uld_decenc(in octetstring buf) {
+	log("==================================");
+	log("In: ", buf);
+	var RlcmacUlDataBlock udb := dec_RlcmacUlDataBlock(buf);
+	log("Dec: ", udb);
+	var octetstring enc := enc_RlcmacUlDataBlock(udb);
+	log("Enc: ", enc);
+	if (enc != buf) {
+		setverdict(fail, "Re-encoded data doesn't equal input data");
+		mtc.stop;
 	}
+}
 
-	testcase TC_selftest_rlcmac() runs on dummy_CT {
-		var RlcmacDlCtrlBlock dcb;
-		var RlcmacUlCtrlBlock ucb;
-		const octetstring c_dl_ul_ack_nack := '40240080400000000000000077628dbba14b2b2b2b2b2b'O;
-		const octetstring c_dl_data := '0f00007341c001081200102198c72477ea104895e8b959acc58b108182f4d0454300'O;
-		const octetstring c_dl_data2 := '070002165dc0012b2b2b43c0012b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b00'O;
-		const octetstring c_ul_ctrl_ack := '4006ec51b7772b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b'O;
-		const octetstring c_ul_dl_ack_nack := '4008004000000000000000701000edc0000b2b2b2b2b2b'O;
-		const octetstring c_dl_ul_assign := '482857628dbbaf0126e68800082b2b2b2b2b2b2b2b2b2b'O;
-
-		log(c_dl_ul_ack_nack);
-		dcb := dec_RlcmacDlCtrlBlock(c_dl_ul_ack_nack);
-		log(dcb);
-		//log(dec_RlcmacDlCtrlMsg(dcb.payload));
-
-		f_rlcmac_dld_decenc(c_dl_data);
-
-		f_rlcmac_dld_decenc(c_dl_data2);
-
-		log(c_ul_ctrl_ack);
-		ucb := dec_RlcmacUlCtrlBlock(c_ul_ctrl_ack);
-		log(ucb);
-		//log(dec_RlcmacUlCtrlMsg(ucb.payload));
-
-		log(c_ul_dl_ack_nack);
-		ucb := dec_RlcmacUlCtrlBlock(c_ul_dl_ack_nack);
-		log(ucb);
-		//log(dec_RlcmacUlCtrlMsg(ucb.payload));
-
-		log(c_dl_ul_assign);
-		dcb := dec_RlcmacDlCtrlBlock(c_dl_ul_assign);
-		log(dcb);
-		//log(dec_RlcmacDlCtrlMsg(dcb.payload));
-
-		const octetstring c_uld_tlli_noext := '080101a61cab5201c001080103e5e000310a0005f4e61cab5232f44000c8001d1b00'O;
-		f_rlcmac_uld_decenc(c_uld_tlli_noext);
-
-		const octetstring c_uld_tlli_ext7pad := '0001041da61cab5200201705a96e102b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b00'O;
-		log("ULD_decenc");
-		f_rlcmac_uld_decenc(c_uld_tlli_ext7pad);
-		log("UL_decenc");
-		f_rlcmac_ul_decenc(c_uld_tlli_ext7pad);
-
-		f_rlcmac_ul_decenc(c_ul_dl_ack_nack);
+function f_rlcmac_dld_decenc(in octetstring buf) {
+	log("==================================");
+	log("In: ", buf);
+	var RlcmacDlDataBlock udb := dec_RlcmacDlDataBlock(buf);
+	log("Dec: ", udb);
+	var octetstring enc := enc_RlcmacDlDataBlock(udb);
+	log("Enc: ", enc);
+	if (enc != buf) {
+		setverdict(fail, "Re-encoded data doesn't equal input data");
+		mtc.stop;
 	}
+}
 
-	function f_rlcmac_ul_decenc(in octetstring buf) {
-		log("==================================");
-		log("In: ", buf);
-		var RlcmacUlBlock udb := dec_RlcmacUlBlock(buf);
-		log("Dec: ", udb);
-		var octetstring enc := enc_RlcmacUlBlock(udb);
-		log("Enc: ", enc);
-		if (enc != buf) {
-			setverdict(fail, "Re-encoded data doesn't equal input data");
-			mtc.stop;
-		}
+
+testcase TC_selftest_rr() runs on dummy_CT {
+	//const octetstring c_paging_none := '06210001F02B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B'O
+	const octetstring c_paging_none := '1506210001F0'O;
+	const octetstring c_ia_tbf := '2d063f100fe3677bd8440000c800100b2b2b2b2b2b2b2b'O
+	log(c_paging_none);
+	log(dec_GsmRrMessage(c_paging_none));
+
+	log(c_ia_tbf);
+	log(dec_GsmRrMessage(c_ia_tbf));
+}
+
+function f_seq_octstr(integer len) return octetstring {
+	var octetstring payload := ''O;
+	for (var integer i := 0; i < len; i := i+1 ) {
+		payload := payload & int2oct(i mod 256, 1);
 	}
+	return payload;
+}
 
-	function f_rlcmac_uld_decenc(in octetstring buf) {
-		log("==================================");
-		log("In: ", buf);
-		var RlcmacUlDataBlock udb := dec_RlcmacUlDataBlock(buf);
-		log("Dec: ", udb);
-		var octetstring enc := enc_RlcmacUlDataBlock(udb);
-		log("Enc: ", enc);
-		if (enc != buf) {
-			setverdict(fail, "Re-encoded data doesn't equal input data");
-			mtc.stop;
-		}
-	}
+testcase TC_ul_tbf_single_llc_sizes() runs on dummy_CT {
+	g_mmctx.imsi := '262420123456789'H;
+	g_mmctx.tlli := f_random_tlli();
+	f_init();
 
-	function f_rlcmac_dld_decenc(in octetstring buf) {
-		log("==================================");
-		log("In: ", buf);
-		var RlcmacDlDataBlock udb := dec_RlcmacDlDataBlock(buf);
-		log("Dec: ", udb);
-		var octetstring enc := enc_RlcmacDlDataBlock(udb);
-		log("Enc: ", enc);
-		if (enc != buf) {
-			setverdict(fail, "Re-encoded data doesn't equal input data");
-			mtc.stop;
-		}
-	}
-
-
-	testcase TC_selftest_rr() runs on dummy_CT {
-		//const octetstring c_paging_none := '06210001F02B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B'O
-		const octetstring c_paging_none := '1506210001F0'O;
-		const octetstring c_ia_tbf := '2d063f100fe3677bd8440000c800100b2b2b2b2b2b2b2b'O
-		log(c_paging_none);
-		log(dec_GsmRrMessage(c_paging_none));
-
-		log(c_ia_tbf);
-		log(dec_GsmRrMessage(c_ia_tbf));
-	}
-
-	function f_seq_octstr(integer len) return octetstring {
-		var octetstring payload := ''O;
-		for (var integer i := 0; i < len; i := i+1 ) {
-			payload := payload & int2oct(i mod 256, 1);
-		}
-		return payload;
-	}
-
-	testcase TC_ul_tbf_single_llc_sizes() runs on dummy_CT {
-		g_mmctx.imsi := '262420123456789'H;
-		g_mmctx.tlli := f_random_tlli();
-		f_init();
-
-		for (var integer len := 1; len <= 1560; len := len+1) {
-			log("Testing Uplink TBF with single LLC-PDU of ", len, " bytes");
-			var octetstring payload := f_seq_octstr(len);
-			var UlTbfPars ul_tbf_pars := {
-				ack_mode := true,
-				initial_cs := CS1,
-				llc_pdus := {
-					valueof(ts_LLC_UI(payload, c_LLC_SAPI_LLGMM, '0'B, g_mmctx.n_u))
-				}
-			}
-			var UlTbfState ul_tbf_state;
-			f_UlTbfState_init(ul_tbf_state, ul_tbf_pars);
-			f_ul_tbf(ul_tbf_state);
-			f_sleep(1.0);
-		}
-
-		f_exit();
-	}
-
-	testcase TC_ul_tbf() runs on dummy_CT {
-		g_mmctx.imsi := '262420123456789'H;
-		g_mmctx.tlli := f_random_tlli();
-		f_init();
-
-		var octetstring payload := f_seq_octstr(1023);
+	for (var integer len := 1; len <= 1560; len := len+1) {
+		log("Testing Uplink TBF with single LLC-PDU of ", len, " bytes");
+		var octetstring payload := f_seq_octstr(len);
 		var UlTbfPars ul_tbf_pars := {
 			ack_mode := true,
 			initial_cs := CS1,
-			llc_pdus := { 
-				valueof(ts_LLC_UI(payload, c_LLC_SAPI_LLGMM, '0'B, g_mmctx.n_u)),
-				valueof(ts_LLC_UI(payload, c_LLC_SAPI_LLGMM, '0'B, g_mmctx.n_u+1)),
-				valueof(ts_LLC_UI(payload, c_LLC_SAPI_LLGMM, '0'B, g_mmctx.n_u+2)),
-				valueof(ts_LLC_UI(payload, c_LLC_SAPI_LLGMM, '0'B, g_mmctx.n_u+3)),
-				valueof(ts_LLC_UI(payload, c_LLC_SAPI_LLGMM, '0'B, g_mmctx.n_u+4)),
-				valueof(ts_LLC_UI(payload, c_LLC_SAPI_LLGMM, '0'B, g_mmctx.n_u+5))
+			llc_pdus := {
+				valueof(ts_LLC_UI(payload, c_LLC_SAPI_LLGMM, '0'B, g_mmctx.n_u))
 			}
-		};
+		}
 		var UlTbfState ul_tbf_state;
 		f_UlTbfState_init(ul_tbf_state, ul_tbf_pars);
 		f_ul_tbf(ul_tbf_state);
-
-		f_exit();
+		f_sleep(1.0);
 	}
 
-	testcase TC_dl_tbf() runs on dummy_CT {
-		g_mmctx.imsi := '262420123456789'H;
-		g_mmctx.tlli := f_random_tlli();
-		f_init();
+	f_exit();
+}
 
-		f_establish_dl_tbf();
+testcase TC_ul_tbf() runs on dummy_CT {
+	g_mmctx.imsi := '262420123456789'H;
+	g_mmctx.tlli := f_random_tlli();
+	f_init();
 
-		f_exit();
-	}
-
-	function f_wait_tbf_dl(TbfNr tbf_nr, GprsTlli tlli) runs on dummy_CT return ImmediateAssignment {
-		var LAPDm_ph_data ph_data;
-		var GsmRrMessage rr;
-		timer T := 10.0;
-		T.start;
-		alt {
-		[] L1.receive(LAPDm_ph_data:{sacch:=?,sapi:=0,lapdm:={bbis:=?}}) -> value ph_data {
-			rr := dec_GsmRrMessage(ph_data.lapdm.bbis.payload);
-			log("PCH/AGCH DL RR: ", rr);
-			if (match(rr, t_RR_IMM_ASS_TBF_DL(tlli))) {
-				var TbfPars tbf_pars := valueof(t_TbfParsInit);
-				log("Received IMM.ASS for our TLLI!");
-				tbf_pars.tfi[rr.payload.imm_ass.pkt_chan_desc.tn] :=
-					rr.payload.imm_ass.rest_octets.hh.dl.group1.tfi_assignment;
-				L1.send(TBF_DL_establish_req:{tbf_nr, tbf_pars});
-			} else {
-				repeat;
-			}
+	var octetstring payload := f_seq_octstr(1023);
+	var UlTbfPars ul_tbf_pars := {
+		ack_mode := true,
+		initial_cs := CS1,
+		llc_pdus := { 
+			valueof(ts_LLC_UI(payload, c_LLC_SAPI_LLGMM, '0'B, g_mmctx.n_u)),
+			valueof(ts_LLC_UI(payload, c_LLC_SAPI_LLGMM, '0'B, g_mmctx.n_u+1)),
+			valueof(ts_LLC_UI(payload, c_LLC_SAPI_LLGMM, '0'B, g_mmctx.n_u+2)),
+			valueof(ts_LLC_UI(payload, c_LLC_SAPI_LLGMM, '0'B, g_mmctx.n_u+3)),
+			valueof(ts_LLC_UI(payload, c_LLC_SAPI_LLGMM, '0'B, g_mmctx.n_u+4)),
+			valueof(ts_LLC_UI(payload, c_LLC_SAPI_LLGMM, '0'B, g_mmctx.n_u+5))
 		}
-		[] L1.receive { repeat };
-		[] T.timeout {
-			setverdict(fail, "Timeout waiting for IMM ASS")
-			mtc.stop;
-			}
+	};
+	var UlTbfState ul_tbf_state;
+	f_UlTbfState_init(ul_tbf_state, ul_tbf_pars);
+	f_ul_tbf(ul_tbf_state);
+
+	f_exit();
+}
+
+testcase TC_dl_tbf() runs on dummy_CT {
+	g_mmctx.imsi := '262420123456789'H;
+	g_mmctx.tlli := f_random_tlli();
+	f_init();
+
+	f_establish_dl_tbf();
+
+	f_exit();
+}
+
+function f_wait_tbf_dl(TbfNr tbf_nr, GprsTlli tlli) runs on dummy_CT return ImmediateAssignment {
+	var LAPDm_ph_data ph_data;
+	var GsmRrMessage rr;
+	timer T := 10.0;
+	T.start;
+	alt {
+	[] L1.receive(LAPDm_ph_data:{sacch:=?,sapi:=0,lapdm:={bbis:=?}}) -> value ph_data {
+		rr := dec_GsmRrMessage(ph_data.lapdm.bbis.payload);
+		log("PCH/AGCH DL RR: ", rr);
+		if (match(rr, t_RR_IMM_ASS_TBF_DL(tlli))) {
+			var TbfPars tbf_pars := valueof(t_TbfParsInit);
+			log("Received IMM.ASS for our TLLI!");
+			tbf_pars.tfi[rr.payload.imm_ass.pkt_chan_desc.tn] :=
+				rr.payload.imm_ass.rest_octets.hh.dl.group1.tfi_assignment;
+			L1.send(TBF_DL_establish_req:{tbf_nr, tbf_pars});
+		} else {
+			repeat;
 		}
-		T.stop;
-		return rr.payload.imm_ass;
 	}
-
-	/* Establish an UL TBF: Tune to ARFCN, send RACH, receive AGCH, enable TBF Rx */
-	function f_establish_dl_tbf() runs on dummy_CT {
-		timer T := 5.0;
-		var BCCH_tune_req tune_req := { { false, 871 }, true };
-		L1.send(tune_req);
-		/* FIXME: wait for confirm */
-
-		/* sending a GMM PDU as DL-UNITDATA should trigger Paging + DL TBF Assignment */
-		tx_gmm('1'B, '01020304'O, c_LLC_SAPI_LLGMM);
-
-		/* Expect an IMM.ASS for PDCH on the AGCH */
-		f_wait_tbf_dl(0, g_mmctx.tlli);
-
-		var RLCMAC_ph_data_ind dl;
-		alt {
-		[] L1.receive(RLCMAC_ph_data_ind:{cs:=?, ts_nr:=?, fn:=?, block:=tr_RLCMAC_DATA_RRBP}) ->
-value dl {
-			var uint6_t tfi := dl.block.data.mac_hdr.hdr_ext.tfi;
-			var GsmFrameNumber ul_fn := f_rrbp_fn(dl.fn, dl.block.data.mac_hdr.mac_hdr.rrbp);
-			var AckNackDescription an_desc := { /* FIXME: compute this based on state */
-				final_ack := '1'B,
-				starting_seq_nr := 0,
-				receive_block_bitmap := '0000000000000000000000000000000000000000000000000000000000000001'B
-			}
-			var RlcmacUlCtrlMsg ctrl_ack;
-			ctrl_ack := valueof(ts_RlcMacUlCtrl_PKT_DL_ACK(tfi, an_desc));
-			var RlcmacUlBlock ul_block := valueof(ts_RLC_UL_CTRL_ACK(ctrl_ack));
-			L1.send(ts_PH_DATA_ABS(0, CS1, dl.ts_nr, ul_fn, {false, 871}, ul_block));
-			log("Sent DL ACK: ", ul_block);
-			}
-		[] L1.receive { repeat; }
+	[] L1.receive { repeat };
+	[] T.timeout {
+		setverdict(fail, "Timeout waiting for IMM ASS")
+		mtc.stop;
 		}
+	}
+	T.stop;
+	return rr.payload.imm_ass;
+}
 
-		f_sleep(10.0);
+/* Establish an UL TBF: Tune to ARFCN, send RACH, receive AGCH, enable TBF Rx */
+function f_establish_dl_tbf() runs on dummy_CT {
+	timer T := 5.0;
+	var BCCH_tune_req tune_req := { { false, 871 }, true };
+	L1.send(tune_req);
+	/* FIXME: wait for confirm */
+
+	/* sending a GMM PDU as DL-UNITDATA should trigger Paging + DL TBF Assignment */
+	tx_gmm('1'B, '01020304'O, c_LLC_SAPI_LLGMM);
+
+	/* Expect an IMM.ASS for PDCH on the AGCH */
+	f_wait_tbf_dl(0, g_mmctx.tlli);
+
+	var RLCMAC_ph_data_ind dl;
+	alt {
+	[] L1.receive(RLCMAC_ph_data_ind:{cs:=?, ts_nr:=?, fn:=?, block:=tr_RLCMAC_DATA_RRBP}) -> value dl {
+		var uint6_t tfi := dl.block.data.mac_hdr.hdr_ext.tfi;
+		var GsmFrameNumber ul_fn := f_rrbp_fn(dl.fn, dl.block.data.mac_hdr.mac_hdr.rrbp);
+		var AckNackDescription an_desc := { /* FIXME: compute this based on state */
+			final_ack := '1'B,
+			starting_seq_nr := 0,
+			receive_block_bitmap := '0000000000000000000000000000000000000000000000000000000000000001'B
+		}
+		var RlcmacUlCtrlMsg ctrl_ack;
+		ctrl_ack := valueof(ts_RlcMacUlCtrl_PKT_DL_ACK(tfi, an_desc));
+		var RlcmacUlBlock ul_block := valueof(ts_RLC_UL_CTRL_ACK(ctrl_ack));
+		L1.send(ts_PH_DATA_ABS(0, CS1, dl.ts_nr, ul_fn, {false, 871}, ul_block));
+		log("Sent DL ACK: ", ul_block);
+		}
+	[] L1.receive { repeat; }
 	}
 
+	f_sleep(10.0);
+}
 
-	control {
-		execute(TC_selftest_ns());
-		execute(TC_ul_tbf_single_llc_sizes());
-		execute(TC_ul_tbf());
-		execute(TC_paging());
-	}
+
+control {
+	execute(TC_selftest_ns());
+	execute(TC_ul_tbf_single_llc_sizes());
+	execute(TC_ul_tbf());
+	execute(TC_paging());
+}
+
 };

-- 
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Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-MessageType: merged
Gerrit-Change-Id: I6eaca0ec7fb9c2dc5d59e385bc3a3a8bb85fe23a
Gerrit-Change-Number: 13374
Gerrit-PatchSet: 2
Gerrit-Owner: Harald Welte <laforge at gnumonks.org>
Gerrit-Reviewer: Harald Welte <laforge at gnumonks.org>
Gerrit-Reviewer: Jenkins Builder (1000002)
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