neels has submitted this change. (
https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/24411 )
Change subject: add bsc/BSC_Tests_VAMOS.ttcn
......................................................................
add bsc/BSC_Tests_VAMOS.ttcn
BSC_Tests_VAMOS.ttcn is separate from BSC_Tests.ttcn in order to
instruct osmo-bts-omldummy to pass BTS_FEAT_VAMOS == true in the OML BTS
attributes.
Add tests:
TC_chan_act_to_vamos()
TC_mode_modify_to_vamos_fr()
TC_mode_modify_to_vamos_hr()
TC_assign_to_secondary_lchan_fr()
TC_assign_to_secondary_lchan_hr()
TC_vamos_multiplex_tch_f_tch_f()
TC_vamos_multiplex_tch_h_tch_h_tch_h_tch_h()
Change-Id: I2c504099163a30ea102cbd26d3615ca2e5ce1e64
---
M bsc/BSC_Tests.ttcn
A bsc/BSC_Tests_VAMOS.ttcn
M library/L3_Templates.ttcn
M library/RSL_Types.ttcn
4 files changed, 859 insertions(+), 6 deletions(-)
Approvals:
laforge: Looks good to me, approved
Jenkins Builder: Verified
diff --git a/bsc/BSC_Tests.ttcn b/bsc/BSC_Tests.ttcn
index 2b3703f..41deea1 100644
--- a/bsc/BSC_Tests.ttcn
+++ b/bsc/BSC_Tests.ttcn
@@ -20,6 +20,8 @@
* level testing.
*/
+friend module BSC_Tests_VAMOS;
+
import from Misc_Helpers all;
import from General_Types all;
import from Osmocom_Types all;
@@ -673,7 +675,7 @@
uint8_t mp_exp_ms_power_level := 7;
}
-private function f_gen_test_hdlr_pars(integer bssap_idx := 0) return
TestHdlrParams {
+friend function f_gen_test_hdlr_pars(integer bssap_idx := 0) return
TestHdlrParams {
var TestHdlrParams pars := valueof(t_def_TestHdlrPars);
if (mp_bssap_cfg[bssap_idx].transport == BSSAP_TRANSPORT_AoIP) {
@@ -799,7 +801,7 @@
}
-private function f_shutdown_helper() runs on test_CT {
+friend function f_shutdown_helper() runs on test_CT {
all component.stop;
setverdict(pass);
mtc.stop;
@@ -1001,7 +1003,7 @@
"sccp-timer iar " & int2str(g_bsc_sccp_timer_iar)});
}
-private function f_logp(TELNETasp_PT pt, charstring log_msg)
+friend function f_logp(TELNETasp_PT pt, charstring log_msg)
{
// log on TTCN3 log output
log(log_msg);
@@ -6602,7 +6604,7 @@
}
}
-private function f_perform_clear(RSL_DCHAN_PT rsl, template PDU_ML3_NW_MS
exp_rr_rel_tmpl := tr_RRM_RR_RELEASE)
+friend function f_perform_clear(RSL_DCHAN_PT rsl, template PDU_ML3_NW_MS
exp_rr_rel_tmpl := tr_RRM_RR_RELEASE)
runs on MSC_ConnHdlr {
f_logp(BSCVTY, "MSC instructs BSC to clear channel");
BSSAP.send(ts_BSSMAP_ClearCommand(0));
diff --git a/bsc/BSC_Tests_VAMOS.ttcn b/bsc/BSC_Tests_VAMOS.ttcn
new file mode 100644
index 0000000..bf487cf
--- /dev/null
+++ b/bsc/BSC_Tests_VAMOS.ttcn
@@ -0,0 +1,738 @@
+module BSC_Tests_VAMOS {
+
+/* Integration Tests for OsmoBSC
+ * (C) 2021 by sysmocom - s.f.m.c. GmbH <[email protected]>
+ * All rights reserved.
+ *
+ * Released under the terms of GNU General Public License, Version 2 or
+ * (at your option) any later version.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * This test suite tests OsmoBSC while emulating both multiple BTS + MS as
+ * well as the MSC. See README for more details.
+ *
+ * There are test cases that run in so-called 'handler mode' and test cases
+ * that run directly on top of the BSSAP and RSL CodecPorts. The "handler
mode"
+ * tests abstract the multiplexing/demultiplexing of multiple SCCP connections
+ * and/or RSL channels and are hence suitable for higher-level test cases,
while
+ * the "raw" tests directly on top of the CodecPorts are more suitable for
lower-
+ * level testing.
+ */
+
+import from BSC_Tests all;
+
+import from Misc_Helpers all;
+import from General_Types all;
+import from Osmocom_Types all;
+import from GSM_Types all;
+import from IPL4asp_Types all;
+
+import from BSSAP_Types all;
+import from RAN_Adapter all;
+import from BSSAP_LE_Adapter all;
+import from BSSAP_LE_CodecPort all;
+import from BSSAP_LE_Types all;
+import from BSSLAP_Types all;
+import from BSSAP_CodecPort all;
+import from BSSMAP_Templates all;
+import from IPA_Emulation all;
+import from IPA_CodecPort all;
+import from IPA_Types all;
+import from IPA_Testing all;
+import from RSL_Types all;
+import from RSL_Emulation all;
+import from MGCP_Emulation all;
+import from MGCP_Templates all;
+import from MGCP_Types all;
+import from MGCP_CodecPort all;
+
+import from Osmocom_CTRL_Functions all;
+import from Osmocom_CTRL_Types all;
+import from Osmocom_CTRL_Adapter all;
+
+import from StatsD_Types all;
+import from StatsD_CodecPort all;
+import from StatsD_CodecPort_CtrlFunct all;
+import from StatsD_Checker all;
+
+import from Osmocom_VTY_Functions all;
+import from TELNETasp_PortType all;
+
+import from MobileL3_CommonIE_Types all;
+import from MobileL3_Types all;
+import from MobileL3_RRM_Types all;
+import from L3_Templates all;
+import from GSM_RR_Types all;
+
+import from SCCP_Templates all;
+import from BSSMAP_Templates all;
+import from BSSMAP_LE_Templates all;
+
+import from SCCPasp_Types all;
+
+import from GSM_SystemInformation all;
+import from GSM_RestOctets all;
+import from TCCConversion_Functions all;
+
+import from RAN_Emulation all;
+import from MSC_ConnectionHandler all;
+
+import from Native_Functions all;
+
+const integer NUM_BTS := 3;
+const integer NUM_MSC := 3;
+
+private function f_rsl_chan_nr_to_subslot(RslChannelNr chan_nr)
+return integer
+{
+ var integer subslot;
+ select (chan_nr) {
+ case (t_RslChanNr_Bm(?)) {
+ /* TCH/F, always subslot 0 */
+ subslot := 0;
+ }
+ case (t_RslChanNr_Lm(?, ?)) {
+ /* TCH/H */
+ subslot := chan_nr.u.lm.sub_chan;
+ }
+ case (t_RslChanNr_Osmo_VAMOS_Bm(?)) {
+ /* TCH/F, always subslot 0 */
+ subslot := 0;
+ }
+ case (t_RslChanNr_Osmo_VAMOS_Lm(?, ?)) {
+ /* TCH/H */
+ subslot := chan_nr.u.lm.sub_chan;
+ }
+ case else {
+ setverdict(fail, "unsupported RslChannelNr type in
f_rsl_chan_nr_to_subslot()");
+ mtc.stop;
+ }
+ }
+ return subslot;
+}
+
+private function f_rsl_chan_nr_to_rsl_cbits(RslChannelNr chan_nr)
+return BIT5
+{
+ var BIT5 rsl_cbits;
+ select (chan_nr) {
+ case (t_RslChanNr_Bm(?)) {
+ rsl_cbits := '00001'B;
+ }
+ case (t_RslChanNr_Lm(?, ?)) {
+ rsl_cbits := int2bit(2 + chan_nr.u.lm.sub_chan, 5); /*
'0001x'B */
+ }
+ case (t_RslChanNr_Osmo_VAMOS_Bm(?)) {
+ rsl_cbits := '11101'B;
+ }
+ case (t_RslChanNr_Osmo_VAMOS_Lm(?, ?)) {
+ rsl_cbits := int2bit(30 + chan_nr.u.lm.sub_chan, 5); /*
'1111x'B */
+ }
+ case else {
+ setverdict(fail, "unsupported RslChannelNr type in
f_rsl_chan_nr_to_rsl_cbits()");
+ mtc.stop;
+ }
+ }
+ return rsl_cbits;
+}
+
+private function f_rsl_chan_nr_to_rr_cbits(RslChannelNr chan_nr)
+return BIT5
+{
+ var BIT5 rr_cbits;
+ select (chan_nr) {
+ case (t_RslChanNr_Bm(?)) {
+ rr_cbits := '00001'B;
+ }
+ case (t_RslChanNr_Lm(?, ?)) {
+ rr_cbits := int2bit(2 + chan_nr.u.lm.sub_chan, 5); /*
'0001x'B */
+ }
+ case (t_RslChanNr_Osmo_VAMOS_Bm(?)) {
+ rr_cbits := '00001'B;
+ /* In RR, there must *not* be Osmocom specific cbits */
+ }
+ case (t_RslChanNr_Osmo_VAMOS_Lm(?, ?)) {
+ rr_cbits := int2bit(2 + chan_nr.u.lm.sub_chan, 5); /*
'0001x'B */
+ /* In RR, there must *not* be Osmocom specific cbits */
+ }
+ case else {
+ setverdict(fail, "unsupported RslChannelNr type in
f_rsl_chan_nr_to_rr_cbits()");
+ mtc.stop;
+ }
+ }
+ return rr_cbits;
+}
+
+private function f_rsl_chan_nr_to_chrt(RslChannelNr chan_nr, boolean vamos)
+return RSL_ChanRateType
+{
+ var boolean fr;
+ select (chan_nr) {
+ case (t_RslChanNr_Bm(?)) {
+ fr := true;
+ }
+ case (t_RslChanNr_Lm(?, ?)) {
+ fr := false;
+ }
+ case (t_RslChanNr_Osmo_VAMOS_Bm(?)) {
+ fr := true;
+ }
+ case (t_RslChanNr_Osmo_VAMOS_Lm(?, ?)) {
+ fr := false;
+ }
+ case else {
+ setverdict(fail, "unsupported RslChannelNr type in
f_rsl_chan_nr_to_chrt()");
+ mtc.stop;
+ }
+ }
+ if (fr) {
+ if (vamos) {
+ return RSL_CHRT_OSMO_TCH_F_VAMOS;
+ } else {
+ return RSL_CHRT_TCH_F;
+ }
+ } else {
+ if (vamos) {
+ return RSL_CHRT_OSMO_TCH_H_VAMOS;
+ } else {
+ return RSL_CHRT_TCH_H;
+ }
+ }
+}
+
+private function f_lchan_str(integer bts_nr, integer trx_nr, RslChannelNr
chan_nr)
+return charstring
+{
+ var integer subslot := f_rsl_chan_nr_to_subslot(chan_nr);
+ return "lchan " & int2str(bts_nr) & " " & int2str(trx_nr) & " " &
int2str(chan_nr.tn) & " " & int2str(subslot);
+}
+
+private function f_long_lchan_str(integer bts_nr, integer trx_nr, RslChannelNr
chan_nr)
+return charstring
+{
+ var integer subslot := f_rsl_chan_nr_to_subslot(chan_nr);
+ return "bts " & int2str(bts_nr) & " trx " & int2str(trx_nr) & "
timeslot " & int2str(chan_nr.tn) & " sub-slot " & int2str(subslot);
+}
+
+private function f_lchan_ensure_established(TELNETasp_PT vty, integer bts_nr,
integer trx_nr, RslChannelNr chan_nr)
+{
+ var charstring lchan_str := f_lchan_str(bts_nr, trx_nr, chan_nr);
+ var charstring lchan_info := f_vty_transceive_ret(vty, "show " &
lchan_str);
+ if (f_strstr(lchan_info, "State: ESTABLISHED") < 0) {
+ log("'show lchan' replied: ", lchan_info);
+ setverdict(fail, "lchan " & lchan_str & " is not in state
ESTABLISHED");
+ mtc.stop;
+ }
+ setverdict(pass);
+}
+
+/* Activate a primary lchan in VAMOS speech mode */
+testcase TC_chan_act_to_vamos() runs on test_CT {
+ f_init_vty();
+
+ f_logp(BSCVTY, "TC_chan_act_to_vamos");
+
+ f_init(1, false);
+ f_sleep(1.0);
+
+ f_vty_transceive(BSCVTY, "bts 0 trx 0 timeslot 1 sub-slot 0
activate-vamos fr");
+
+ var RSL_Message rsl;
+
+ rsl := f_exp_ipa_rx(0, tr_RSL_MsgTypeD(RSL_MT_CHAN_ACTIV));
+
+ var RSL_IE_Body chan_mode_ie;
+ if (f_rsl_find_ie(rsl, RSL_IE_CHAN_MODE, chan_mode_ie) == false) {
+ setverdict(fail, "Cannot find RSL_IE_CHAN_MODE");
+ mtc.stop;
+ }
+ if (chan_mode_ie.chan_mode.ch_rate_type != RSL_CHRT_OSMO_TCH_F_VAMOS) {
+ setverdict(fail, "expected chan_mode.ch_rate_type ==
RSL_CHRT_OSMO_TCH_F_VAMOS");
+ mtc.stop;
+ }
+
+ var RSL_IE_Body osmo_tsc_ie;
+ if (f_rsl_find_ie(rsl, RSL_IE_OSMO_TRAINING_SEQUENCE, osmo_tsc_ie) ==
false) {
+ setverdict(fail, "Cannot find RSL_IE_OSMO_TRAINING_SEQUENCE");
+ mtc.stop;
+ }
+
+ var RslChannelNr chan_nr := rsl.ies[0].body.chan_nr;
+ f_ipa_tx(0, ts_RSL_CHAN_ACT_ACK(chan_nr, 23+10));
+
+ f_sleep(1.0);
+ f_lchan_ensure_established(BSCVTY, 0, 0, chan_nr);
+
+ f_shutdown_helper();
+}
+
+/* verify that DTAP passes through both ways with the right cbits */
+private function f_verify_dtap() runs on MSC_ConnHdlr
+{
+ var octetstring l3_data := '00010203040506'O;
+ var PDU_BSSAP rx_bssap_dtap;
+
+ /* MS to NW */
+ RSL.send(ts_RSL_DATA_IND(g_chan_nr, valueof(ts_RslLinkID_DCCH(0)),
l3_data));
+ BSSAP.receive(tr_BSSAP_DTAP) -> value rx_bssap_dtap;
+ if (not match(rx_bssap_dtap.pdu.dtap, l3_data)) {
+ setverdict(fail, "unexpected L3 data");
+ mtc.stop;
+ }
+
+ /* NW to MS */
+ l3_data := '0800dcba9876543210'O;
+ BSSAP.send(ts_BSSAP_DTAP(l3_data, '00'O));
+ RSL.receive(tr_RSL_DATA_REQ(g_chan_nr, tr_RslLinkID_DCCH(0), l3_data));
+}
+
+
+private function f_est_lchan_and_mode_modify_to_vamos() runs on MSC_ConnHdlr {
+ var PDU_BSSAP ass_cmd := f_gen_ass_req(g_pars.use_osmux);
+ var template PDU_BSSAP exp_compl := f_gen_exp_compl(g_pars.use_osmux);
+
+ /* puzzle together the ASSIGNMENT REQ for given codec[s] */
+ if (mp_bssap_cfg[0].transport == BSSAP_TRANSPORT_AoIP) {
+ ass_cmd.pdu.bssmap.assignmentRequest.codecList :=
g_pars.ass_codec_list;
+
exp_compl.pdu.bssmap.assignmentComplete.speechCodec.codecElements[0] :=
+
g_pars.ass_codec_list.codecElements[0];
+ if (isvalue(g_pars.expect_mr_s0_s7)) {
+
exp_compl.pdu.bssmap.assignmentComplete.speechCodec.codecElements[0].s0_7 :=
+
g_pars.expect_mr_s0_s7;
+ }
+ }
+ ass_cmd.pdu.bssmap.assignmentRequest.channelType :=
+
f_BSSMAP_chtype_from_codec(g_pars.ass_codec_list.codecElements[0]);
+ log("expecting ASS COMPL like this: ", exp_compl);
+
+ f_establish_fully(ass_cmd, exp_compl);
+
+ f_lchan_ensure_established(BSCVTY, 0, 0, g_chan_nr);
+
+ var charstring current_long_lchan_str := f_long_lchan_str(0, 0,
g_chan_nr);
+ f_vty_transceive(BSCVTY, current_long_lchan_str & " modify vamos tsc 2
3");
+
+ var RSL_Message rsl_rr;
+ RSL.receive(tr_RSL_DATA_REQ(g_chan_nr)) -> value rsl_rr;
+
+ var PDU_ML3_NW_MS l3 :=
dec_PDU_ML3_NW_MS(rsl_rr.ies[2].body.l3_info.payload);
+
+ var integer current_subslot := f_rsl_chan_nr_to_subslot(g_chan_nr);
+
+ template PDU_ML3_NW_MS expect_rr_modify := tr_RRM_ModeModify(
+ tr_ChannelDescription2_V(timeslotNumber :=
int2bit(g_chan_nr.tn, 3)),
+ tr_ChannelMode_V(mode := 'C1'O /* 1 1 0 0 0 0 0 1 speech full
rate or half rate version 1 in VAMOS mode (3GPP TS 44.018) */),
+ extendedTSCSet := tr_ExtendedTSCSet_TV(cSDomainTSCSet :=
'01'B));
+
+ if (not match(l3, expect_rr_modify)) {
+ log("expected: ", expect_rr_modify);
+ log("got: ", l3);
+ setverdict(fail, "RR channelModeModify message is not as
expected");
+ mtc.stop;
+ }
+
f_rsl_reply(ts_RRM_ModeModifyAck(l3.msgs.rrm.channelModeModify.channelDescription,
+
l3.msgs.rrm.channelModeModify.channelMode,
+
l3.msgs.rrm.channelModeModify.extendedTSCSet), rsl_rr);
+
+ var RSL_Message rsl;
+ RSL.receive(tr_RSL_MODE_MODIFY_REQ_with_OSMO_TSC(g_chan_nr,
tr_RSL_ChanMode(f_rsl_chan_nr_to_chrt(g_chan_nr, true), RSL_CMOD_SP_GSM1),
+ tsc_set := 1, /* 1 means TSC Set 2 (range 1-4 in
spec tables and naming, 0-3 on the wire) */
+ tsc := 3));
+ RSL.send(ts_RSL_MODE_MODIFY_ACK(g_chan_nr));
+ f_sleep(1.0);
+
+ f_lchan_ensure_established(BSCVTY, 0, 0, g_chan_nr);
+ f_verify_dtap();
+}
+
+private function f_TC_mode_modify_to_vamos(charstring id) runs on MSC_ConnHdlr
{
+ f_est_lchan_and_mode_modify_to_vamos();
+}
+
+/* Modify a primary lchan into VAMOS speech mode */
+testcase TC_mode_modify_to_vamos_fr() runs on test_CT {
+ var TestHdlrParams pars := f_gen_test_hdlr_pars();
+ var MSC_ConnHdlr vc_conn;
+
+ f_init(1, true);
+ f_sleep(1.0);
+
+ pars.ass_codec_list := valueof(ts_BSSMAP_IE_CodecList({ts_CodecFR}));
+ vc_conn := f_start_handler(refers(f_TC_mode_modify_to_vamos), pars);
+ vc_conn.done;
+ f_shutdown_helper();
+}
+
+/* Modify a primary lchan into VAMOS speech mode */
+testcase TC_mode_modify_to_vamos_hr() runs on test_CT {
+ var TestHdlrParams pars := f_gen_test_hdlr_pars();
+ var MSC_ConnHdlr vc_conn;
+
+ f_init(1, true);
+ f_sleep(1.0);
+
+ pars.ass_codec_list := valueof(ts_BSSMAP_IE_CodecList({ts_CodecHR}));
+ vc_conn := f_start_handler(refers(f_TC_mode_modify_to_vamos), pars);
+ vc_conn.done;
+ f_shutdown_helper();
+}
+
+/* Establish a primary lchan, and then do a re-assignment to a VAMOS shadow
lchan. */
+private function f_reassign_secondary_to_primary_lchan(RslChannelNr
new_chan_nr) runs on MSC_ConnHdlr
+{
+ var integer current_subslot := f_rsl_chan_nr_to_subslot(g_chan_nr);
+
+ var integer new_subslot := f_rsl_chan_nr_to_subslot(new_chan_nr);
+ var BIT5 new_rr_cbits := f_rsl_chan_nr_to_rr_cbits(new_chan_nr);
+
+ activate(as_Media_mgw());
+
+ f_rslem_register(0, new_chan_nr, RSL_PROC);
+ log("f_rslem_register(0, new_chan_nr = ", new_chan_nr, ")");
+
+ f_vty_transceive(BSCVTY, "bts 0 trx 0 timeslot " &
int2str(g_chan_nr.tn) & " vamos-sub-slot " & int2str(current_subslot)
+ & " reassign-to trx 0 timeslot " &
int2str(new_chan_nr.tn) & " sub-slot " & int2str(new_subslot));
+ /* RSL CHAN ACT is ACKed by RSL emulation */
+
+ var RSL_Message rsl;
+ var RSL_IE_Body ie;
+ var boolean b_unused;
+ interleave {
+ [] RSL.receive(tr_RSL_DATA_REQ(g_chan_nr)) -> value rsl {
+ var PDU_ML3_NW_MS l3 :=
dec_PDU_ML3_NW_MS(rsl.ies[2].body.l3_info.payload);
+ var template PDU_ML3_NW_MS expect_rr_assignment :=
tr_RR_AssignmentCommand(
+ desc := tr_ChannelDescription2_V(timeslotNumber :=
int2bit(new_chan_nr.tn, 3),
+ channelTypeandTDMAOffset :=
new_rr_cbits),
+ mode := tr_ChannelMode_TV(mode := '01'O
+ /* 0 0 0 0 0 0 0 1 speech
full rate or half rate version 1 (3GPP TS 44.018) */),
+ extendedTSCSet := omit);
+ if (not match(l3, expect_rr_assignment)) {
+ log("expected: ", expect_rr_assignment);
+ log("got: ", l3);
+ setverdict(fail, "RR assignmentCommand message is not
as expected");
+ mtc.stop;
+ }
+
+ var PDU_ML3_MS_NW l3_tx :=
valueof(ts_RRM_AssignmentComplete('00'O));
+ RSL.send(ts_RSL_EST_IND(new_chan_nr,
valueof(ts_RslLinkID_DCCH(0)),
+ enc_PDU_ML3_MS_NW(l3_tx)));
+
+ }
+ [] RSL.receive(tr_RSL_IPA_CRCX(new_chan_nr)) -> value rsl {
+ var uint7_t rtp_pt := 0;
+ if (f_rsl_find_ie(rsl, RSL_IE_IPAC_RTP_PAYLOAD, ie)) {
+ rtp_pt := ie.ipa_rtp_pt;
+ }
+ RSL.send(ts_RSL_IPA_CRCX_ACK(new_chan_nr, 123,
+ oct2int(f_inet_addr("1.2.3.4")),
+ 4321,
+ rtp_pt));
+ }
+ [] RSL.receive(tr_RSL_IPA_MDCX(new_chan_nr, ?)) -> value rsl{
+ /* Extract conn_id, ip, port, rtp_pt2 from request + use in
response */
+ b_unused := f_rsl_find_ie(rsl, RSL_IE_IPAC_CONN_ID, ie);
+ var uint16_t conn_id := ie.ipa_conn_id;
+ /* mandatory */
+ b_unused := f_rsl_find_ie(rsl, RSL_IE_IPAC_REMOTE_IP, ie);
+ var HostPort peer;
+ peer.host := f_inet_ntoa(int2oct(ie.ipa_remote_ip, 4));
+ b_unused := f_rsl_find_ie(rsl, RSL_IE_IPAC_REMOTE_PORT, ie);
+ peer.port_nr := ie.ipa_remote_port;
+ var uint7_t rtp_pt := 0;
+ /* optional */
+ if (f_rsl_find_ie(rsl, RSL_IE_IPAC_RTP_PAYLOAD, ie)) {
+ rtp_pt := ie.ipa_rtp_pt;
+ }
+ RSL.send(ts_RSL_IPA_MDCX_ACK(new_chan_nr, conn_id,
+ oct2int(f_inet_addr(peer.host)),
+ peer.port_nr,
+ rtp_pt));
+ }
+ [] RSL.receive(tr_RSL_DEACT_SACCH(g_chan_nr)) {}
+ [] RSL.receive(tr_RSL_RF_CHAN_REL(g_chan_nr)) {
+ /*
+ RSL.send(ts_ASP_RSL_UD(ts_RSL_RF_CHAN_REL_ACK(g_chan_nr),
+ IPAC_PROTO_RSL_TRX0));
+ */
+ f_rslem_unregister(0, g_chan_nr, RSL_PROC);
+ g_chan_nr := new_chan_nr;
+ }
+ /* (There must be no RSL_MT_REL_REQ on the old lchan.) */
+ }
+
+ setverdict(pass);
+
+ f_sleep(1.0);
+ f_vty_transceive(BSCVTY, "show lchan summary");
+
+ f_verify_dtap();
+}
+
+private function f_est_and_reassign_to_secondary_lchan(RslChannelNr
new_chan_nr) runs on MSC_ConnHdlr
+{
+ var integer new_subslot := f_rsl_chan_nr_to_subslot(new_chan_nr);
+ var BIT5 new_rr_cbits := f_rsl_chan_nr_to_rr_cbits(new_chan_nr);
+
+ var PDU_BSSAP ass_cmd := f_gen_ass_req();
+ var template PDU_BSSAP exp_compl := f_gen_exp_compl();
+
+ /* puzzle together the ASSIGNMENT REQ for given codec[s] */
+ if (mp_bssap_cfg[0].transport == BSSAP_TRANSPORT_AoIP) {
+ ass_cmd.pdu.bssmap.assignmentRequest.codecList :=
g_pars.ass_codec_list;
+
exp_compl.pdu.bssmap.assignmentComplete.speechCodec.codecElements[0] :=
+
g_pars.ass_codec_list.codecElements[0];
+ if (isvalue(g_pars.expect_mr_s0_s7)) {
+
exp_compl.pdu.bssmap.assignmentComplete.speechCodec.codecElements[0].s0_7 :=
+
g_pars.expect_mr_s0_s7;
+ }
+ }
+ ass_cmd.pdu.bssmap.assignmentRequest.channelType :=
+
f_BSSMAP_chtype_from_codec(g_pars.ass_codec_list.codecElements[0]);
+ log("expecting ASS COMPL like this: ", exp_compl);
+
+ f_establish_fully(ass_cmd, exp_compl);
+
+ var integer current_subslot := f_rsl_chan_nr_to_subslot(g_chan_nr);
+
+ f_sleep(1.0);
+
+ activate(as_Media_mgw());
+
+ f_rslem_register(0, new_chan_nr, RSL_PROC);
+ log("f_rslem_register(0, new_chan_nr = ", new_chan_nr, ")");
+
+ f_vty_transceive(BSCVTY, "bts 0 trx 0 timeslot " &
int2str(g_chan_nr.tn) & " sub-slot " & int2str(current_subslot)
+ & " reassign-to trx 0 timeslot " &
int2str(new_chan_nr.tn) & " vamos-sub-slot " & int2str(new_subslot) & " tsc 4
2");
+ /* RSL CHAN ACT is ACKed by RSL emulation */
+
+ var RSL_Message rsl;
+ var RSL_IE_Body ie;
+ var boolean b_unused;
+ interleave {
+ [] RSL.receive(tr_RSL_DATA_REQ(g_chan_nr)) -> value rsl {
+ var PDU_ML3_NW_MS l3 :=
dec_PDU_ML3_NW_MS(rsl.ies[2].body.l3_info.payload);
+ var template PDU_ML3_NW_MS expect_rr_assignment :=
tr_RR_AssignmentCommand(
+ desc := tr_ChannelDescription2_V(timeslotNumber :=
int2bit(new_chan_nr.tn, 3),
+
channelTypeandTDMAOffset := new_rr_cbits),
+ mode := tr_ChannelMode_TV(mode := 'C1'O
+ /* 1 1 0 0 0 0 0 1 speech
full rate or half rate version 1 in VAMOS mode (3GPP TS 44.018) */),
+ extendedTSCSet := tr_ExtendedTSCSet_TV(cSDomainTSCSet
:= '11'B
+ /* 3 means TSC
Set 4 (range 1-4 in spec tables and naming, 0-3 on the wire) */));
+ if (not match(l3, expect_rr_assignment)) {
+ log("expected: ", expect_rr_assignment);
+ log("got: ", l3);
+ setverdict(fail, "RR assignmentCommand message is not
as expected");
+ mtc.stop;
+ }
+
+ var PDU_ML3_MS_NW l3_tx :=
valueof(ts_RRM_AssignmentComplete('00'O));
+ RSL.send(ts_RSL_EST_IND(new_chan_nr,
valueof(ts_RslLinkID_DCCH(0)),
+ enc_PDU_ML3_MS_NW(l3_tx)));
+
+ }
+ [] RSL.receive(tr_RSL_IPA_CRCX(new_chan_nr)) -> value rsl {
+ var uint7_t rtp_pt := 0;
+ if (f_rsl_find_ie(rsl, RSL_IE_IPAC_RTP_PAYLOAD, ie)) {
+ rtp_pt := ie.ipa_rtp_pt;
+ }
+ RSL.send(ts_RSL_IPA_CRCX_ACK(new_chan_nr, 123,
+ oct2int(f_inet_addr("1.2.3.4")),
+ 4321,
+ rtp_pt));
+ }
+ [] RSL.receive(tr_RSL_IPA_MDCX(new_chan_nr, ?)) -> value rsl{
+ /* Extract conn_id, ip, port, rtp_pt2 from request + use in
response */
+ b_unused := f_rsl_find_ie(rsl, RSL_IE_IPAC_CONN_ID, ie);
+ var uint16_t conn_id := ie.ipa_conn_id;
+ /* mandatory */
+ b_unused := f_rsl_find_ie(rsl, RSL_IE_IPAC_REMOTE_IP, ie);
+ var HostPort peer;
+ peer.host := f_inet_ntoa(int2oct(ie.ipa_remote_ip, 4));
+ b_unused := f_rsl_find_ie(rsl, RSL_IE_IPAC_REMOTE_PORT, ie);
+ peer.port_nr := ie.ipa_remote_port;
+ var uint7_t rtp_pt := 0;
+ /* optional */
+ if (f_rsl_find_ie(rsl, RSL_IE_IPAC_RTP_PAYLOAD, ie)) {
+ rtp_pt := ie.ipa_rtp_pt;
+ }
+ RSL.send(ts_RSL_IPA_MDCX_ACK(new_chan_nr, conn_id,
+ oct2int(f_inet_addr(peer.host)),
+ peer.port_nr,
+ rtp_pt));
+ }
+ [] RSL.receive(tr_RSL_DEACT_SACCH(g_chan_nr)) {}
+ [] RSL.receive(tr_RSL_RF_CHAN_REL(g_chan_nr)) {
+ /*
+ RSL.send(ts_ASP_RSL_UD(ts_RSL_RF_CHAN_REL_ACK(g_chan_nr),
+ IPAC_PROTO_RSL_TRX0));
+ */
+ f_rslem_unregister(0, g_chan_nr, RSL_PROC);
+ g_chan_nr := new_chan_nr;
+ }
+ /* (There must be no RSL_MT_REL_REQ on the old lchan.) */
+ }
+
+ setverdict(pass);
+
+ f_sleep(1.0);
+ f_vty_transceive(BSCVTY, "show lchan summary");
+
+ f_verify_dtap();
+}
+
+/* Establish a primary lchan, and then do a re-assignment to a VAMOS shadow
lchan.
+ * Also re-assign back to a primary lchan. */
+private function f_TC_assign_to_secondary_lchan_fr(charstring id) runs on
MSC_ConnHdlr {
+
f_est_and_reassign_to_secondary_lchan(valueof(t_RslChanNr_Osmo_VAMOS_Bm(2)));
+ f_reassign_secondary_to_primary_lchan(valueof(t_RslChanNr_Bm(3)));
+ f_perform_clear(RSL);
+ f_sleep(1.0);
+}
+
+/* Establish a primary lchan, and then do a re-assignment to a VAMOS shadow
lchan. */
+testcase TC_assign_to_secondary_lchan_fr() runs on test_CT {
+ var TestHdlrParams pars := f_gen_test_hdlr_pars();
+ var MSC_ConnHdlr vc_conn;
+
+ f_init(1, true);
+ f_sleep(1.0);
+
+ pars.ass_codec_list := valueof(ts_BSSMAP_IE_CodecList({ts_CodecFR}));
+ vc_conn := f_start_handler(refers(f_TC_assign_to_secondary_lchan_fr),
pars);
+ vc_conn.done;
+ f_shutdown_helper();
+}
+
+/* Establish a primary lchan, and then do a re-assignment to a VAMOS shadow
lchan.
+ * Also re-assign back to a primary lchan. */
+private function f_TC_assign_to_secondary_lchan_hr(charstring id) runs on
MSC_ConnHdlr {
+
f_est_and_reassign_to_secondary_lchan(valueof(t_RslChanNr_Osmo_VAMOS_Lm(6, 0)));
+ f_reassign_secondary_to_primary_lchan(valueof(t_RslChanNr_Lm(6, 1)));
+ f_perform_clear(RSL);
+ f_sleep(1.0);
+}
+
+/* Establish a primary lchan, and then do a re-assignment to a VAMOS shadow
lchan. */
+testcase TC_assign_to_secondary_lchan_hr() runs on test_CT {
+ var TestHdlrParams pars := f_gen_test_hdlr_pars();
+ var MSC_ConnHdlr vc_conn;
+
+ f_init(1, true);
+ f_sleep(1.0);
+
+ pars.ass_codec_list := valueof(ts_BSSMAP_IE_CodecList({ts_CodecHR}));
+ vc_conn := f_start_handler(refers(f_TC_assign_to_secondary_lchan_hr),
pars);
+ vc_conn.done;
+ f_shutdown_helper();
+}
+
+/* First, primary lchan of TC_vamos_multiplex_tch_f_tch_f() */
+private function f_TC_vamos_multiplex_tch_f_tch_f1(charstring id) runs on
MSC_ConnHdlr {
+ f_est_lchan_and_mode_modify_to_vamos();
+ f_logp(BSCVTY, "f_est_lchan_and_mode_modify_to_vamos done");
+}
+
+/* Second, VAMOS shadow lchan of TC_vamos_multiplex_tch_f_tch_f() */
+private function f_TC_vamos_multiplex_tch_f_tch_f2(charstring id) runs on
MSC_ConnHdlr {
+
f_est_and_reassign_to_secondary_lchan(valueof(t_RslChanNr_Osmo_VAMOS_Bm(1)));
+}
+
+/* Establish a primary lchan and modify it to VAMOS speech mode. Then establish
+ * another primary lchan, and re-assign it to the VAMOS secondary lchan of the
+ * first primary lchan. */
+testcase TC_vamos_multiplex_tch_f_tch_f() runs on test_CT {
+ var TestHdlrParams pars1 := f_gen_test_hdlr_pars();
+ var MSC_ConnHdlr vc_conn1;
+
+ var TestHdlrParams pars2 := f_gen_test_hdlr_pars();
+ var MSC_ConnHdlr vc_conn2;
+ pars2.imsi := '001014234234234'H;
+ pars2.media_nr := 2;
+
+ f_init(1, true);
+ f_sleep(1.0);
+
+ pars1.ass_codec_list := valueof(ts_BSSMAP_IE_CodecList({ts_CodecFR}));
+ pars2.ass_codec_list := valueof(ts_BSSMAP_IE_CodecList({ts_CodecFR}));
+ vc_conn1 := f_start_handler(refers(f_TC_vamos_multiplex_tch_f_tch_f1),
pars1);
+ vc_conn1.done;
+
+ vc_conn2 := f_start_handler(refers(f_TC_vamos_multiplex_tch_f_tch_f2),
pars2);
+ vc_conn2.done;
+ f_shutdown_helper();
+}
+
+/* First, primary lchan of TC_vamos_multiplex_tch_h_tch_h_tch_h_tch_h() */
+private function f_TC_vamos_multiplex_tch_h_tch_h1(charstring id) runs on
MSC_ConnHdlr {
+ f_est_lchan_and_mode_modify_to_vamos();
+ f_logp(BSCVTY, "f_est_lchan_and_mode_modify_to_vamos done");
+}
+
+/* Second, VAMOS shadow lchan of TC_vamos_multiplex_tch_h_tch_h_tch_h_tch_h()
*/
+private function f_TC_vamos_multiplex_tch_h_tch_h2(charstring id) runs on
MSC_ConnHdlr {
+
f_est_and_reassign_to_secondary_lchan(valueof(t_RslChanNr_Osmo_VAMOS_Lm(5, 0)));
+}
+
+private function f_TC_vamos_multiplex_tch_h_tch_h4(charstring id) runs on
MSC_ConnHdlr {
+
f_est_and_reassign_to_secondary_lchan(valueof(t_RslChanNr_Osmo_VAMOS_Lm(5, 1)));
+}
+
+/* Establish a primary lchan and modify it to VAMOS speech mode. Then establish
+ * another primary lchan, and re-assign it to the VAMOS secondary lchan of the
+ * first primary lchan. */
+testcase TC_vamos_multiplex_tch_h_tch_h_tch_h_tch_h() runs on test_CT {
+ var TestHdlrParams pars1 := f_gen_test_hdlr_pars();
+ var MSC_ConnHdlr vc_conn1;
+ pars1.imsi := '001011111111111'H;
+ pars1.media_nr := 1;
+
+ var TestHdlrParams pars2 := f_gen_test_hdlr_pars();
+ var MSC_ConnHdlr vc_conn2;
+ pars2.imsi := '001012222222222'H;
+ pars2.media_nr := 2;
+
+ var TestHdlrParams pars3 := f_gen_test_hdlr_pars();
+ var MSC_ConnHdlr vc_conn3;
+ pars3.imsi := '001013333333333'H;
+ pars3.media_nr := 3;
+
+ var TestHdlrParams pars4 := f_gen_test_hdlr_pars();
+ var MSC_ConnHdlr vc_conn4;
+ pars4.imsi := '001014444444444'H;
+ pars4.media_nr := 4;
+
+ f_init(1, true);
+ f_sleep(1.0);
+
+ pars1.ass_codec_list := valueof(ts_BSSMAP_IE_CodecList({ts_CodecHR}));
+ pars2.ass_codec_list := valueof(ts_BSSMAP_IE_CodecList({ts_CodecHR}));
+ pars3.ass_codec_list := valueof(ts_BSSMAP_IE_CodecList({ts_CodecHR}));
+ pars4.ass_codec_list := valueof(ts_BSSMAP_IE_CodecList({ts_CodecHR}));
+
+ vc_conn1 := f_start_handler(refers(f_TC_vamos_multiplex_tch_h_tch_h1),
pars1);
+ vc_conn1.done;
+
+ vc_conn2 := f_start_handler(refers(f_TC_vamos_multiplex_tch_h_tch_h2),
pars2);
+ vc_conn2.done;
+
+ /* Also fill up the second subslot of the TCH/H timeslot */
+ vc_conn3 := f_start_handler(refers(f_TC_vamos_multiplex_tch_h_tch_h1),
pars3);
+ vc_conn3.done;
+
+ vc_conn4 := f_start_handler(refers(f_TC_vamos_multiplex_tch_h_tch_h4),
pars4);
+ vc_conn4.done;
+ f_shutdown_helper();
+}
+
+control {
+ execute( TC_chan_act_to_vamos() );
+ execute( TC_mode_modify_to_vamos_fr() );
+ execute( TC_mode_modify_to_vamos_hr() );
+ execute( TC_assign_to_secondary_lchan_fr() );
+ execute( TC_assign_to_secondary_lchan_hr() );
+ execute( TC_vamos_multiplex_tch_f_tch_f() );
+ execute( TC_vamos_multiplex_tch_h_tch_h_tch_h_tch_h() );
+}
+
+}
diff --git a/library/L3_Templates.ttcn b/library/L3_Templates.ttcn
index 5d688de..53731c0 100644
--- a/library/L3_Templates.ttcn
+++ b/library/L3_Templates.ttcn
@@ -530,7 +530,51 @@
}
}
-template (value) PDU_ML3_MS_NW ts_RRM_ModeModifyAck(ChannelDescription2_V
desc, ChannelMode_V mode) := {
+template ChannelDescription2_V tr_ChannelDescription2_V(template BIT3
timeslotNumber := ?,
+ template BIT5
channelTypeandTDMAOffset := ?) := {
+ timeslotNumber := timeslotNumber,
+ channelTypeandTDMAOffset := channelTypeandTDMAOffset,
+ octet3 := ?,
+ octet4 := ?
+}
+
+template ChannelMode_V tr_ChannelMode_V(template OCT1 mode) := {
+ mode := mode
+}
+
+template ExtendedTSCSet_TV tr_ExtendedTSCSet_TV(template BIT2 cSDomainTSCSet
:= ?) := {
+ elementIdentifier := '6D'O,
+ cSDomainTSCSet := cSDomainTSCSet,
+ secondPSDomainTSCAssigned := ?,
+ primaryPSDomainTSCSet := ?,
+ secondaryPSDomainTSCSet := ?,
+ secondaryPSDomainTSCValue := ?
+}
+
+template PDU_ML3_NW_MS tr_RRM_ModeModify(template ChannelDescription2_V desc
:= ?,
+ template ChannelMode_V mode := ?,
+ template ExtendedTSCSet_TV
extendedTSCSet) := {
+ discriminator := '0110'B,
+ tiOrSkip := {
+ skipIndicator := '0000'B
+ },
+ msgs := {
+ rrm := {
+ channelModeModify := {
+ messageType := '00010000'B,
+ channelDescription := desc,
+ channelMode := mode,
+ vGCS_TargetModeIndication := omit,
+ multiRateConfiguration := omit,
+ vGCS_Ciphering_Parameters := omit,
+ extendedTSCSet := extendedTSCSet
+ }
+ }
+ }
+}
+
+template (value) PDU_ML3_MS_NW ts_RRM_ModeModifyAck(ChannelDescription2_V
desc, ChannelMode_V mode,
+ template (omit)
ExtendedTSCSet_TV extendedTSCSet := omit) := {
discriminator := '0000'B, /* overwritten */
tiOrSkip := {
skipIndicator := '0000'B
@@ -541,7 +585,7 @@
messageType := '00010111'B,
channelDescription := desc,
channelMode := mode,
- extendedTSCSet := omit
+ extendedTSCSet := extendedTSCSet
}
}
}
@@ -584,6 +628,57 @@
}
}
+template ChannelMode_TV tr_ChannelMode_TV(template OCT1 mode) := {
+ elementIdentifier := '63'O,
+ mode := mode
+}
+
+template (present) PDU_ML3_NW_MS tr_RR_AssignmentCommand(
+ template ChannelDescription2_V desc := ?,
+ template ChannelMode_TV mode := ?,
+ template ExtendedTSCSet_TV extendedTSCSet := omit
+) := {
+ discriminator := '0110'B,
+ tiOrSkip := {
+ skipIndicator := '0000'B
+ },
+ msgs := {
+ rrm := {
+ assignmentCommand := {
+ messageType := '00101110'B,
+ descrOf1stChAfterTime := desc,
+ PowerCommand := ?,
+ frequencyList_at := omit,
+ cellChannelDescr := omit,
+ descrMultislotAllocation := omit,
+ modeOf1stChannel := mode,
+ channelSet2 := omit,
+ channelSet3 := omit,
+ channelSet4 := omit,
+ channelSet5 := omit,
+ channelSet6 := omit,
+ channelSet7 := omit,
+ channelSet8 := omit,
+ descrOf2ndChAfterTime := omit,
+ modeOf2ndChannel := omit,
+ mobileAllocation_at := omit,
+ startingTime := omit,
+ frequencyList_bt := omit,
+ descrOf1stCh_bt := omit,
+ descrOf2ndCh_bt := omit,
+ frequencyChannelSequence := omit,
+ mobileAllocation_bt := omit,
+ cipherModeSetting := omit,
+ vGCS_TargetModeIndication := omit,
+ multiRateConfiguration := omit,
+ vGCS_Ciphering_Parameters := omit,
+ extendedTSCSet_afterTime := extendedTSCSet,
+ extendedTSCSet_beforeTime := omit
+ }
+ }
+ }
+}
+
template (value) PDU_ML3_MS_NW ts_RRM_AssignmentComplete(OCT1 cause) := {
discriminator := '0000'B, /* overwritten */
tiOrSkip := {
diff --git a/library/RSL_Types.ttcn b/library/RSL_Types.ttcn
index 16ce506..10284b8 100644
--- a/library/RSL_Types.ttcn
+++ b/library/RSL_Types.ttcn
@@ -1515,6 +1515,24 @@
*
}
}
+
+ template RSL_Message tr_RSL_MODE_MODIFY_REQ_with_OSMO_TSC(template
RslChannelNr chan_nr,
+ template
RSL_IE_ChannelMode mode,
+ template
uint8_t tsc_set := ?,
+ template
uint8_t tsc := ?) := {
+ msg_disc := tr_RSL_MsgDisc(RSL_MDISC_DCHAN, false),
+ msg_type := RSL_MT_MODE_MODIFY_REQ,
+ ies := {
+ tr_RSL_IE(RSL_IE_Body:{chan_nr := chan_nr}),
+ tr_RSL_IE(RSL_IE_Body:{chan_mode := mode}),
+ tr_RSL_IE(RSL_IE_Body:{osmo_training_sequence := {
+ len := ?,
+ tsc_set := tsc_set,
+ tsc := tsc
+ }
+ })
+ }
+ };
/* 8.4.10 BTS -> BSC */
template (value) RSL_Message ts_RSL_MODE_MODIFY_ACK(template (value)
RslChannelNr chan_nr) := {
--
To view, visit https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/24411
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Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: I2c504099163a30ea102cbd26d3615ca2e5ce1e64
Gerrit-Change-Number: 24411
Gerrit-PatchSet: 15
Gerrit-Owner: neels <[email protected]>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: fixeria <[email protected]>
Gerrit-Reviewer: laforge <[email protected]>
Gerrit-Reviewer: neels <[email protected]>
Gerrit-Reviewer: pespin <[email protected]>
Gerrit-MessageType: merged
