| module BTS_Tests_ASCI { |
| |
| /* ASCI Integration Tests for OsmoBTS |
| * |
| * (C) 2023 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de> |
| * All Rights Reserved |
| * |
| * SPDX-License-Identifier: AGPL-3.0+ |
| * |
| * Authors: Harald Welte; Andreas Eversberg |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU Affero General Public License as published by |
| * the Free Software Foundation; either version 3 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU Affero General Public License for more details. |
| * |
| * You should have received a copy of the GNU Affero General Public License |
| * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| import from Misc_Helpers all; |
| import from General_Types all; |
| import from Osmocom_Types all; |
| import from GSM_Types all; |
| import from L1CTL_PortType all; |
| import from L1CTL_Types all; |
| import from LAPDm_Types all; |
| import from IPA_Emulation all; |
| import from GSM_RR_Types all; |
| import from L3_Templates all; |
| |
| import from MobileL3_CommonIE_Types all; |
| |
| import from RSL_Emulation all; |
| import from RSL_Types all; |
| |
| import from BTS_Tests all; |
| |
| |
| |
| /* convert from boolean value to BIT1 */ |
| private function bool2bit1(boolean inp) return BIT1 { |
| if (inp) { |
| return '1'B; |
| } else { |
| return '0'B; |
| } |
| } |
| |
| /* encode a VBS/VGCS call reference into it's OCT5 representation */ |
| private function f_enc_gcr(integer call_ref, boolean is_group_call, boolean ack_required := false) |
| return OCT5 |
| { |
| var DescriptiveGroupOrBroadcastCallReference_V v := { |
| binaryCodingOfGroupOrBroadcastCallReference := int2bit(call_ref, 27), |
| sF := bool2bit1(is_group_call), |
| aF := bool2bit1(ack_required), |
| callPriority := '000'B, |
| cipheringInformation := '0000'B, |
| spare := '0000'B |
| } |
| return bit2oct(encvalue(v)); |
| } |
| |
| /* Send Notification command to start and stop notifying an ASCI call. |
| * When it starts, it is expected that NCH is received by MS. Also it is expected that NCH is received again. |
| * When it stops, it is expected that NCH is not received anymore. */ |
| testcase TC_vbs_notification() runs on test_CT |
| { |
| timer T; |
| |
| f_init(); |
| f_init_l1ctl(); |
| f_l1_tune(L1CTL); |
| |
| var OCT5 gcr := f_enc_gcr(hex2int('2342'H), false, false); |
| var OCT3 chan_desc := '234266'O; |
| var octetstring notif_nch := '090620B42230000091A1330B2B2B2B2B2B2B2B2B2B2B2B'O; |
| var integer recv_count := 0; |
| |
| log("Sending RSL NOTIF_CMD (start)"); |
| RSL_CCHAN.send(ts_ASP_RSL_UD(ts_RSL_NOTIF_CMD_START(gcr, chan_desc))); |
| |
| /* NCH must be received twice. */ |
| T.start(2.0); |
| alt { |
| [] L1CTL.receive(tr_L1CTL_DATA_IND(t_RslChanNr_PCH_AGCH(0), ?, notif_nch)) { |
| log("Received matching NOTIFICATION/NCH."); |
| recv_count := recv_count + 1; |
| if (recv_count != 2) { |
| repeat; |
| } |
| T.stop; |
| } |
| [] L1CTL.receive { repeat; } |
| [] T.timeout { |
| setverdict(fail, "Timeout waiting for NCH message"); |
| } |
| } |
| |
| log("Sending RSL NOTIF_CMD (stop)"); |
| RSL_CCHAN.send(ts_ASP_RSL_UD(ts_RSL_NOTIF_CMD_STOP(gcr))); |
| |
| /* Flush pending messages and be sure that the sending of notifications has stopped. */ |
| f_sleep(1.0); |
| L1CTL.clear; |
| |
| /* NCH must not be received. */ |
| T.start(2.0); |
| alt { |
| [] L1CTL.receive(tr_L1CTL_DATA_IND(t_RslChanNr_PCH_AGCH(0), ?, notif_nch)) { |
| T.stop; |
| setverdict(fail, "Received unexpected NOTIFICATION/NCH."); |
| } |
| [] L1CTL.receive { repeat; } |
| [] T.timeout { |
| log("Not received NOTIFICATION/NCH. (as expected)"); |
| setverdict(pass); |
| } |
| } |
| |
| Misc_Helpers.f_shutdown(__BFILE__, __LINE__); |
| } |
| |
| /* Sub function to clean up MS and BTS. */ |
| private function f_vgcs_cleanup() runs on ConnHdlr |
| { |
| /* Cleanup L1CTL. */ |
| f_L1CTL_RESET(L1CTL); |
| f_l1_tune(L1CTL); |
| |
| /* Cleanup VGCS Channel. */ |
| f_rsl_chan_deact(); |
| } |
| |
| /* A VGCS channel is activated. The BSC sends UPLINK FREE message and UPLINK BUSY message. |
| * When the UPLINK FREE message is sent, the MS is expected to receive several UPLINK FREE messages. |
| * Then the UPLINK BUSY message is sent, the MS is expected to receive one UPLINK BUSY message. |
| */ |
| private function f_TC_vgcs_uplink_free_and_busy(charstring id) runs on ConnHdlr |
| { |
| var octetstring uplink_free := '082B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B'O; |
| var octetstring uplink_busy := '062A'O; |
| |
| f_l1_tune(L1CTL); |
| RSL.clear; |
| |
| /* Activate channel on the BTS side */ |
| log("Activating VGCS channel."); |
| f_rsl_chan_act(g_pars.chan_mode); |
| |
| /* enable dedicated mode */ |
| f_l1ctl_est_dchan(L1CTL, g_pars); |
| |
| /* Send one UPLINK FREE message and expect them to be repeated. */ |
| log("Send UPLINK FREE."); |
| RSL.send(ts_RSL_UNITDATA_REQ(g_chan_nr, ts_RslLinkID_DCCH(0), uplink_free)); |
| for (var integer i := 0; i < 20; i := i + 1) { |
| f_l1_exp_lapdm(tr_LAPDm_Bter_UI(uplink_free)); |
| log("Received UPLINK FREE."); |
| } |
| |
| /* Send one UPLINK BUSY message and expect it to be received. */ |
| log("Send UPLINK BUSY."); |
| RSL.send(ts_RSL_UNITDATA_REQ(g_chan_nr, ts_RslLinkID_DCCH(0), uplink_busy)); |
| f_l1_exp_lapdm(tr_LAPDm_UI(0, cr_MT_CMD, uplink_busy)); |
| log("Received UPLINK BUSY."); |
| |
| /* Deactivate and cleanup. */ |
| f_vgcs_cleanup(); |
| } |
| testcase TC_vgcs_uplink_free_and_busy() runs on test_CT |
| { |
| var template RSL_IE_ChannelMode ch_mode; |
| var ConnHdlrPars pars; |
| var ConnHdlr vc_conn; |
| |
| f_init(); |
| |
| ch_mode := ts_RSL_ChanMode(RSL_CHRT_TCH_F_GROUP, RSL_CMOD_SP_GSM1); |
| pars := valueof(t_Pars(t_RslChanNr_Bm(1), ch_mode)); |
| vc_conn := f_start_handler(refers(f_TC_vgcs_uplink_free_and_busy), pars); |
| vc_conn.done; |
| |
| Misc_Helpers.f_shutdown(__BFILE__, __LINE__); |
| } |
| |
| /* Sub function to test talker detect. */ |
| private function f_vgcs_talker_detect() runs on ConnHdlr |
| { |
| var octetstring uplink_free := '082B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B'O; |
| var octetstring uplink_access := 'C0'O; |
| var template octetstring uplink_grant := '0609C0*'O; |
| var RSL_Message rm; |
| var GsmFrameNumber fn; |
| |
| f_l1_tune(L1CTL); |
| RSL.clear; |
| |
| /* Activate channel on the BTS side. */ |
| log("Activating VGCS channel."); |
| f_rsl_chan_act(g_pars.chan_mode); |
| |
| /* Enable dedicated mode. */ |
| f_l1ctl_est_dchan(L1CTL, g_pars); |
| |
| /* Send one UPLINK FREE message and expect them to be repeated. */ |
| log("Send UPLINK FREE."); |
| RSL.send(ts_RSL_UNITDATA_REQ(g_chan_nr, ts_RslLinkID_DCCH(0), uplink_free)); |
| f_l1_exp_lapdm(tr_LAPDm_Bter_UI(uplink_free)); |
| log("Received UPLINK FREE."); |
| |
| /* Send UPLINK ACCESS on VGCS channel. */ |
| log("Send UPLINK ACCESS."); |
| fn := f_L1CTL_RACH(L1CTL, oct2int(uplink_access), chan_nr := g_pars.chan_nr); |
| |
| /* Receive UPLINK GRANT by the MS. */ |
| f_l1_exp_lapdm(tr_LAPDm_UI(0, cr_MT_CMD, uplink_grant)); |
| log("Received VGCS UPLINK GRANT."); |
| |
| /* Wait for talker detection. */ |
| timer T := 1.0; |
| T.start; |
| alt { |
| [] RSL.receive(tr_RSL_TALKER_DET(g_pars.chan_nr, ?)) -> value rm { |
| log("RSL Talker Detect has been detected: ", rm); |
| T.stop; |
| } |
| [] RSL.receive(tr_RSL_CHAN_RQD(?, ?, ?, ?)) -> value rm { |
| setverdict(fail, "RSL_CHAN_RQD was not expected: ", rm); |
| T.stop; |
| } |
| [] RSL.receive { repeat; } |
| [] T.timeout { |
| setverdict(fail, "Timeout waiting for RSL Talker Detect."); |
| } |
| } |
| } |
| |
| /* A VGCS channel is activated. The BSC sends UPLINK FREE message. The MS sends RACH on VGCS channel. |
| * The MS receives VGCS UPLINK GRAND, but does not respond to it. It is expeced that the BSC receivce RSL CONN FAIL. |
| */ |
| private function f_TC_vgcs_talker_fail(charstring id) runs on ConnHdlr |
| { |
| var RSL_Message rm; |
| |
| /* Perform link establishment and talker detection. */ |
| f_vgcs_talker_detect(); |
| |
| /* Leave dedicated channel, to force link timeout. */ |
| f_L1CTL_RESET(L1CTL); |
| f_l1_tune(L1CTL); |
| |
| /* Wait for link timeout. */ |
| timer T := 40.0; |
| T.start; |
| alt { |
| [] RSL.receive(tr_RSL_CONN_FAIL_IND(g_pars.chan_nr, ?)) -> value rm { |
| log("RSL Conn Fail Ind has been detected as expected: ", rm); |
| T.stop; |
| } |
| [] RSL.receive { repeat; } |
| [] T.timeout { |
| setverdict(fail, "Timeout waiting for RSL Conn Fail Ind."); |
| } |
| } |
| |
| /* Deactivate and cleanup. */ |
| f_vgcs_cleanup(); |
| } |
| testcase TC_vgcs_talker_fail() runs on test_CT |
| { |
| var template RSL_IE_ChannelMode ch_mode; |
| var ConnHdlrPars pars; |
| var ConnHdlr vc_conn; |
| |
| f_init(); |
| |
| ch_mode := ts_RSL_ChanMode(RSL_CHRT_TCH_F_GROUP, RSL_CMOD_SP_GSM1); |
| pars := valueof(t_Pars(t_RslChanNr_Bm(1), ch_mode)); |
| pars.t_guard := 60.0; |
| vc_conn := f_start_handler(refers(f_TC_vgcs_talker_fail), pars); |
| vc_conn.done; |
| |
| Misc_Helpers.f_shutdown(__BFILE__, __LINE__); |
| } |
| |
| /* A VGCS channel is activated. The BSC sends UPLINK FREE message. The MS sends RACH on VGCS channel. |
| * The MS receives VGCS UPLINK GRAND and establishes layer 2. Then the BSC forces to releases the uplink. |
| */ |
| private function f_TC_vgcs_talker_est_rel(charstring id) runs on ConnHdlr |
| { |
| var octetstring uplink_free := '082B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B'O; |
| var octetstring l3 := '01020304'O; |
| template RslLinkId link_id := ts_RslLinkID_DCCH(0); |
| var RSL_Message rm; |
| |
| /* Perform link establishment and talker detection. */ |
| f_vgcs_talker_detect(); |
| |
| /* Establish layer 2. It also detects, if RSL Est Ind is received. */ |
| f_est_rll_mo(0, valueof(link_id), l3); |
| |
| /* Release link by BSC. */ |
| RSL.send(ts_RSL_REL_REQ(g_chan_nr, link_id, RSL_REL_MODE_LOCAL)); |
| |
| log("Send UPLINK FREE."); |
| RSL.send(ts_RSL_UNITDATA_REQ(g_chan_nr, link_id, uplink_free)); |
| f_l1_exp_lapdm(tr_LAPDm_Bter_UI(uplink_free)); |
| log("Received UPLINK FREE."); |
| |
| /* Deactivate and cleanup. */ |
| f_vgcs_cleanup(); |
| } |
| testcase TC_vgcs_talker_est_rel() runs on test_CT |
| { |
| var template RSL_IE_ChannelMode ch_mode; |
| var ConnHdlrPars pars; |
| var ConnHdlr vc_conn; |
| |
| f_init(); |
| |
| ch_mode := ts_RSL_ChanMode(RSL_CHRT_TCH_F_GROUP, RSL_CMOD_SP_GSM1); |
| pars := valueof(t_Pars(t_RslChanNr_Bm(1), ch_mode)); |
| vc_conn := f_start_handler(refers(f_TC_vgcs_talker_est_rel), pars); |
| vc_conn.done; |
| |
| Misc_Helpers.f_shutdown(__BFILE__, __LINE__); |
| } |
| |
| private function f_TC_vgcs_listener_det(charstring id) runs on ConnHdlr |
| { |
| var octetstring uplink_access := '25'O; |
| var RSL_Message rm; |
| var GsmFrameNumber fn; |
| |
| f_l1_tune(L1CTL); |
| RSL.clear; |
| |
| /* Activate channel on the BTS side. */ |
| log("Activating VGCS channel."); |
| f_rsl_chan_act(g_pars.chan_mode); |
| |
| /* Enable dedicated mode. */ |
| f_l1ctl_est_dchan(L1CTL, g_pars); |
| |
| /* Send UPLINK ACCESS on VGCS channel. */ |
| log("Send UPLINK ACCESS."); |
| fn := f_L1CTL_RACH(L1CTL, oct2int(uplink_access), chan_nr := g_pars.chan_nr); |
| |
| /* Wait for listener detection. */ |
| timer T := 2.0; |
| T.start; |
| alt { |
| [] RSL.receive(tr_RSL_LISTENER_DET(g_pars.chan_nr, ?)) -> value rm { |
| log("RSL Talker Listener has been detected: ", rm); |
| T.stop; |
| } |
| [] RSL.receive(tr_RSL_CHAN_RQD(?, ?, ?, ?)) -> value rm { |
| setverdict(fail, "RSL_CHAN_RQD was not expected: ", rm); |
| T.stop; |
| } |
| [] RSL.receive { repeat; } |
| [] T.timeout { |
| setverdict(fail, "Timeout waiting for RSL Listener Detect."); |
| } |
| } |
| |
| /* Send UPLINK ACCESS on VGCS channel. */ |
| log("Send second UPLINK ACCESS."); |
| fn := f_L1CTL_RACH(L1CTL, oct2int(uplink_access), chan_nr := g_pars.chan_nr); |
| |
| /* Wait for listener detection. */ |
| T.start; |
| alt { |
| [] RSL.receive(tr_RSL_LISTENER_DET(g_pars.chan_nr, ?)) { |
| setverdict(fail, "RSL Listener Detect has been detected, but not expected!"); |
| T.stop; |
| } |
| [] RSL.receive(tr_RSL_CHAN_RQD(?, ?, ?, ?)) -> value rm { |
| setverdict(fail, "RSL_CHAN_RQD was not expected: ", rm); |
| T.stop; |
| } |
| [] RSL.receive { repeat; } |
| [] T.timeout { |
| log("Timeout waiting for RSL Listener Detect, as expected."); |
| } |
| } |
| |
| /* Deactivate and cleanup. */ |
| f_vgcs_cleanup(); |
| } |
| testcase TC_vgcs_listener_det() runs on test_CT |
| { |
| var template RSL_IE_ChannelMode ch_mode; |
| var ConnHdlrPars pars; |
| var ConnHdlr vc_conn; |
| |
| f_init(); |
| |
| ch_mode := ts_RSL_ChanMode(RSL_CHRT_TCH_F_GROUP, RSL_CMOD_SP_GSM1); |
| pars := valueof(t_Pars(t_RslChanNr_Bm(1), ch_mode)); |
| vc_conn := f_start_handler(refers(f_TC_vgcs_listener_det), pars); |
| vc_conn.done; |
| |
| Misc_Helpers.f_shutdown(__BFILE__, __LINE__); |
| } |
| |
| control { |
| execute( TC_vbs_notification() ); |
| execute( TC_vgcs_uplink_free_and_busy() ); |
| execute( TC_vgcs_talker_fail() ); |
| execute( TC_vgcs_talker_est_rel() ); |
| execute( TC_vgcs_listener_det() ); |
| |
| } |
| |
| } |