Harald Welte | 5a1d727 | 2023-05-10 19:49:44 +0200 | [diff] [blame] | 1 | module BTS_Tests_ASCI { |
| 2 | |
| 3 | /* ASCI Integration Tests for OsmoBTS |
| 4 | * |
| 5 | * (C) 2023 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de> |
| 6 | * All Rights Reserved |
| 7 | * |
| 8 | * SPDX-License-Identifier: AGPL-3.0+ |
| 9 | * |
| 10 | * Authors: Harald Welte; Andreas Eversberg |
| 11 | * |
| 12 | * This program is free software; you can redistribute it and/or modify |
| 13 | * it under the terms of the GNU Affero General Public License as published by |
| 14 | * the Free Software Foundation; either version 3 of the License, or |
| 15 | * (at your option) any later version. |
| 16 | * |
| 17 | * This program is distributed in the hope that it will be useful, |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | * GNU Affero General Public License for more details. |
| 21 | * |
| 22 | * You should have received a copy of the GNU Affero General Public License |
| 23 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 24 | */ |
| 25 | |
| 26 | import from Misc_Helpers all; |
| 27 | import from General_Types all; |
| 28 | import from Osmocom_Types all; |
| 29 | import from GSM_Types all; |
| 30 | import from L1CTL_PortType all; |
| 31 | import from L1CTL_Types all; |
| 32 | import from LAPDm_Types all; |
| 33 | import from IPA_Emulation all; |
| 34 | import from GSM_RR_Types all; |
| 35 | import from L3_Templates all; |
| 36 | |
| 37 | import from MobileL3_CommonIE_Types all; |
| 38 | |
| 39 | import from RSL_Emulation all; |
| 40 | import from RSL_Types all; |
| 41 | |
| 42 | import from BTS_Tests all; |
| 43 | |
| 44 | |
| 45 | |
| 46 | /* convert from boolean value to BIT1 */ |
| 47 | private function bool2bit1(boolean inp) return BIT1 { |
| 48 | if (inp) { |
| 49 | return '1'B; |
| 50 | } else { |
| 51 | return '0'B; |
| 52 | } |
| 53 | } |
| 54 | |
| 55 | /* encode a VBS/VGCS call reference into it's OCT5 representation */ |
| 56 | private function f_enc_gcr(integer call_ref, boolean is_group_call, boolean ack_required := false) |
| 57 | return OCT5 |
| 58 | { |
| 59 | var DescriptiveGroupOrBroadcastCallReference_V v := { |
| 60 | binaryCodingOfGroupOrBroadcastCallReference := int2bit(call_ref, 27), |
| 61 | sF := bool2bit1(is_group_call), |
| 62 | aF := bool2bit1(ack_required), |
| 63 | callPriority := '000'B, |
| 64 | cipheringInformation := '0000'B, |
| 65 | spare := '0000'B |
| 66 | } |
| 67 | return bit2oct(encvalue(v)); |
| 68 | } |
| 69 | |
| 70 | /* Send Notification command to start and stop notifying an ASCI call. |
| 71 | * When it starts, it is expected that NCH is received by MS. Also it is expected that NCH is received again. |
| 72 | * When it stops, it is expected that NCH is not received anymore. */ |
| 73 | testcase TC_vbs_notification() runs on test_CT |
| 74 | { |
| 75 | timer T; |
| 76 | |
| 77 | f_init(); |
| 78 | f_init_l1ctl(); |
| 79 | f_l1_tune(L1CTL); |
| 80 | |
| 81 | var OCT5 gcr := f_enc_gcr(hex2int('2342'H), false, false); |
| 82 | var OCT3 chan_desc := '234266'O; |
| 83 | var octetstring notif_nch := '090620B42230000091A1330B2B2B2B2B2B2B2B2B2B2B2B'O; |
| 84 | var integer recv_count := 0; |
| 85 | |
| 86 | log("Sending RSL NOTIF_CMD (start)"); |
| 87 | RSL_CCHAN.send(ts_ASP_RSL_UD(ts_RSL_NOTIF_CMD_START(gcr, chan_desc))); |
| 88 | |
| 89 | /* NCH must be received twice. */ |
| 90 | T.start(2.0); |
| 91 | alt { |
| 92 | [] L1CTL.receive(tr_L1CTL_DATA_IND(t_RslChanNr_PCH_AGCH(0), ?, notif_nch)) { |
| 93 | log("Received matching NOTIFICATION/NCH."); |
| 94 | recv_count := recv_count + 1; |
| 95 | if (recv_count != 2) { |
| 96 | repeat; |
| 97 | } |
| 98 | T.stop; |
| 99 | } |
| 100 | [] L1CTL.receive { repeat; } |
| 101 | [] T.timeout { |
| 102 | setverdict(fail, "Timeout waiting for NCH message"); |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | log("Sending RSL NOTIF_CMD (stop)"); |
| 107 | RSL_CCHAN.send(ts_ASP_RSL_UD(ts_RSL_NOTIF_CMD_STOP(gcr))); |
| 108 | |
| 109 | /* Flush pending messages and be sure that the sending of notifications has stopped. */ |
| 110 | f_sleep(1.0); |
| 111 | L1CTL.clear; |
| 112 | |
| 113 | /* NCH must not be received. */ |
| 114 | T.start(2.0); |
| 115 | alt { |
| 116 | [] L1CTL.receive(tr_L1CTL_DATA_IND(t_RslChanNr_PCH_AGCH(0), ?, notif_nch)) { |
| 117 | T.stop; |
| 118 | setverdict(fail, "Received unexpected NOTIFICATION/NCH."); |
| 119 | } |
| 120 | [] L1CTL.receive { repeat; } |
| 121 | [] T.timeout { |
| 122 | log("Not received NOTIFICATION/NCH. (as expected)"); |
| 123 | setverdict(pass); |
| 124 | } |
| 125 | } |
| 126 | |
| 127 | Misc_Helpers.f_shutdown(__BFILE__, __LINE__); |
| 128 | } |
| 129 | |
Andreas Eversberg | 4801baa | 2023-07-17 11:45:38 +0200 | [diff] [blame] | 130 | /* Sub function to clean up MS and BTS. */ |
| 131 | private function f_vgcs_cleanup() runs on ConnHdlr |
| 132 | { |
| 133 | /* Cleanup L1CTL. */ |
| 134 | f_L1CTL_RESET(L1CTL); |
| 135 | f_l1_tune(L1CTL); |
| 136 | |
| 137 | /* Cleanup VGCS Channel. */ |
| 138 | f_rsl_chan_deact(); |
| 139 | } |
| 140 | |
| 141 | /* A VGCS channel is activated. The BSC sends UPLINK FREE message and UPLINK BUSY message. |
| 142 | * When the UPLINK FREE message is sent, the MS is expected to receive several UPLINK FREE messages. |
| 143 | * Then the UPLINK BUSY message is sent, the MS is expected to receive one UPLINK BUSY message. |
| 144 | */ |
| 145 | private function f_TC_vgcs_uplink_free_and_busy(charstring id) runs on ConnHdlr |
| 146 | { |
| 147 | var octetstring uplink_free := '082B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B'O; |
| 148 | var octetstring uplink_busy := '062A'O; |
| 149 | |
| 150 | f_l1_tune(L1CTL); |
| 151 | RSL.clear; |
| 152 | |
| 153 | /* Activate channel on the BTS side */ |
| 154 | log("Activating VGCS channel."); |
| 155 | f_rsl_chan_act(g_pars.chan_mode); |
| 156 | |
| 157 | /* enable dedicated mode */ |
| 158 | f_l1ctl_est_dchan(L1CTL, g_pars); |
| 159 | |
| 160 | /* Send one UPLINK FREE message and expect them to be repeated. */ |
| 161 | log("Send UPLINK FREE."); |
| 162 | RSL.send(ts_RSL_UNITDATA_REQ(g_chan_nr, ts_RslLinkID_DCCH(0), uplink_free)); |
| 163 | for (var integer i := 0; i < 20; i := i + 1) { |
| 164 | f_l1_exp_lapdm(tr_LAPDm_Bter_UI(uplink_free)); |
| 165 | log("Received UPLINK FREE."); |
| 166 | } |
| 167 | |
| 168 | /* Send one UPLINK BUSY message and expect it to be received. */ |
| 169 | log("Send UPLINK BUSY."); |
| 170 | RSL.send(ts_RSL_UNITDATA_REQ(g_chan_nr, ts_RslLinkID_DCCH(0), uplink_busy)); |
| 171 | f_l1_exp_lapdm(tr_LAPDm_UI(0, cr_MT_CMD, uplink_busy)); |
| 172 | log("Received UPLINK BUSY."); |
| 173 | |
| 174 | /* Deactivate and cleanup. */ |
| 175 | f_vgcs_cleanup(); |
| 176 | } |
| 177 | testcase TC_vgcs_uplink_free_and_busy() runs on test_CT |
| 178 | { |
| 179 | var template RSL_IE_ChannelMode ch_mode; |
| 180 | var ConnHdlrPars pars; |
| 181 | var ConnHdlr vc_conn; |
| 182 | |
| 183 | f_init(); |
| 184 | |
| 185 | ch_mode := ts_RSL_ChanMode(RSL_CHRT_TCH_F_GROUP, RSL_CMOD_SP_GSM1); |
| 186 | pars := valueof(t_Pars(t_RslChanNr_Bm(1), ch_mode)); |
| 187 | vc_conn := f_start_handler(refers(f_TC_vgcs_uplink_free_and_busy), pars); |
| 188 | vc_conn.done; |
| 189 | |
| 190 | Misc_Helpers.f_shutdown(__BFILE__, __LINE__); |
| 191 | } |
| 192 | |
Andreas Eversberg | 7766e3d | 2023-07-18 09:02:14 +0200 | [diff] [blame] | 193 | /* Sub function to test talker detect. */ |
| 194 | private function f_vgcs_talker_detect() runs on ConnHdlr |
| 195 | { |
| 196 | var octetstring uplink_free := '082B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B'O; |
| 197 | var octetstring uplink_access := 'C0'O; |
| 198 | var template octetstring uplink_grant := '0609C0*'O; |
| 199 | var RSL_Message rm; |
| 200 | var GsmFrameNumber fn; |
| 201 | |
| 202 | f_l1_tune(L1CTL); |
| 203 | RSL.clear; |
| 204 | |
| 205 | /* Activate channel on the BTS side. */ |
| 206 | log("Activating VGCS channel."); |
| 207 | f_rsl_chan_act(g_pars.chan_mode); |
| 208 | |
| 209 | /* Enable dedicated mode. */ |
| 210 | f_l1ctl_est_dchan(L1CTL, g_pars); |
| 211 | |
| 212 | /* Send one UPLINK FREE message and expect them to be repeated. */ |
| 213 | log("Send UPLINK FREE."); |
| 214 | RSL.send(ts_RSL_UNITDATA_REQ(g_chan_nr, ts_RslLinkID_DCCH(0), uplink_free)); |
| 215 | f_l1_exp_lapdm(tr_LAPDm_Bter_UI(uplink_free)); |
| 216 | log("Received UPLINK FREE."); |
| 217 | |
| 218 | /* Send UPLINK ACCESS on VGCS channel. */ |
| 219 | log("Send UPLINK ACCESS."); |
| 220 | fn := f_L1CTL_RACH(L1CTL, oct2int(uplink_access), chan_nr := g_pars.chan_nr); |
| 221 | |
| 222 | /* Receive UPLINK GRANT by the MS. */ |
| 223 | f_l1_exp_lapdm(tr_LAPDm_UI(0, cr_MT_CMD, uplink_grant)); |
| 224 | log("Received VGCS UPLINK GRANT."); |
| 225 | |
| 226 | /* Wait for talker detection. */ |
| 227 | timer T := 1.0; |
| 228 | T.start; |
| 229 | alt { |
| 230 | [] RSL.receive(tr_RSL_TALKER_DET(g_pars.chan_nr, ?)) -> value rm { |
| 231 | log("RSL Talker Detect has been detected: ", rm); |
| 232 | T.stop; |
| 233 | } |
| 234 | [] RSL.receive(tr_RSL_CHAN_RQD(?, ?, ?, ?)) -> value rm { |
| 235 | setverdict(fail, "RSL_CHAN_RQD was not expected: ", rm); |
| 236 | T.stop; |
| 237 | } |
| 238 | [] RSL.receive { repeat; } |
| 239 | [] T.timeout { |
| 240 | setverdict(fail, "Timeout waiting for RSL Talker Detect."); |
| 241 | } |
| 242 | } |
| 243 | } |
| 244 | |
| 245 | /* A VGCS channel is activated. The BSC sends UPLINK FREE message. The MS sends RACH on VGCS channel. |
| 246 | * The MS receives VGCS UPLINK GRAND, but does not respond to it. It is expeced that the BSC receivce RSL CONN FAIL. |
| 247 | */ |
| 248 | private function f_TC_vgcs_talker_fail(charstring id) runs on ConnHdlr |
| 249 | { |
| 250 | var RSL_Message rm; |
| 251 | |
| 252 | /* Perform link establishment and talker detection. */ |
| 253 | f_vgcs_talker_detect(); |
| 254 | |
| 255 | /* Leave dedicated channel, to force link timeout. */ |
| 256 | f_L1CTL_RESET(L1CTL); |
| 257 | f_l1_tune(L1CTL); |
| 258 | |
| 259 | /* Wait for link timeout. */ |
| 260 | timer T := 40.0; |
| 261 | T.start; |
| 262 | alt { |
| 263 | [] RSL.receive(tr_RSL_CONN_FAIL_IND(g_pars.chan_nr, ?)) -> value rm { |
| 264 | log("RSL Conn Fail Ind has been detected as expected: ", rm); |
| 265 | T.stop; |
| 266 | } |
| 267 | [] RSL.receive { repeat; } |
| 268 | [] T.timeout { |
| 269 | setverdict(fail, "Timeout waiting for RSL Conn Fail Ind."); |
| 270 | } |
| 271 | } |
| 272 | |
| 273 | /* Deactivate and cleanup. */ |
| 274 | f_vgcs_cleanup(); |
| 275 | } |
| 276 | testcase TC_vgcs_talker_fail() runs on test_CT |
| 277 | { |
| 278 | var template RSL_IE_ChannelMode ch_mode; |
| 279 | var ConnHdlrPars pars; |
| 280 | var ConnHdlr vc_conn; |
| 281 | |
| 282 | f_init(); |
| 283 | |
| 284 | ch_mode := ts_RSL_ChanMode(RSL_CHRT_TCH_F_GROUP, RSL_CMOD_SP_GSM1); |
| 285 | pars := valueof(t_Pars(t_RslChanNr_Bm(1), ch_mode)); |
| 286 | pars.t_guard := 60.0; |
| 287 | vc_conn := f_start_handler(refers(f_TC_vgcs_talker_fail), pars); |
| 288 | vc_conn.done; |
| 289 | |
| 290 | Misc_Helpers.f_shutdown(__BFILE__, __LINE__); |
| 291 | } |
| 292 | |
Andreas Eversberg | 083202a | 2023-07-18 14:47:57 +0200 | [diff] [blame] | 293 | /* A VGCS channel is activated. The BSC sends UPLINK FREE message. The MS sends RACH on VGCS channel. |
| 294 | * The MS receives VGCS UPLINK GRAND and establishes layer 2. Then the BSC forces to releases the uplink. |
| 295 | */ |
| 296 | private function f_TC_vgcs_talker_est_rel(charstring id) runs on ConnHdlr |
| 297 | { |
| 298 | var octetstring uplink_free := '082B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B'O; |
| 299 | var octetstring l3 := '01020304'O; |
| 300 | template RslLinkId link_id := ts_RslLinkID_DCCH(0); |
| 301 | var RSL_Message rm; |
| 302 | |
| 303 | /* Perform link establishment and talker detection. */ |
| 304 | f_vgcs_talker_detect(); |
| 305 | |
| 306 | /* Establish layer 2. It also detects, if RSL Est Ind is received. */ |
| 307 | f_est_rll_mo(0, valueof(link_id), l3); |
| 308 | |
| 309 | /* Release link by BSC. */ |
| 310 | RSL.send(ts_RSL_REL_REQ(g_chan_nr, link_id, RSL_REL_MODE_LOCAL)); |
| 311 | |
| 312 | log("Send UPLINK FREE."); |
| 313 | RSL.send(ts_RSL_UNITDATA_REQ(g_chan_nr, link_id, uplink_free)); |
| 314 | f_l1_exp_lapdm(tr_LAPDm_Bter_UI(uplink_free)); |
| 315 | log("Received UPLINK FREE."); |
| 316 | |
| 317 | /* Deactivate and cleanup. */ |
| 318 | f_vgcs_cleanup(); |
| 319 | } |
| 320 | testcase TC_vgcs_talker_est_rel() runs on test_CT |
| 321 | { |
| 322 | var template RSL_IE_ChannelMode ch_mode; |
| 323 | var ConnHdlrPars pars; |
| 324 | var ConnHdlr vc_conn; |
| 325 | |
| 326 | f_init(); |
| 327 | |
| 328 | ch_mode := ts_RSL_ChanMode(RSL_CHRT_TCH_F_GROUP, RSL_CMOD_SP_GSM1); |
| 329 | pars := valueof(t_Pars(t_RslChanNr_Bm(1), ch_mode)); |
| 330 | vc_conn := f_start_handler(refers(f_TC_vgcs_talker_est_rel), pars); |
| 331 | vc_conn.done; |
| 332 | |
| 333 | Misc_Helpers.f_shutdown(__BFILE__, __LINE__); |
| 334 | } |
| 335 | |
Andreas Eversberg | 92c2dca | 2023-07-18 15:29:57 +0200 | [diff] [blame] | 336 | private function f_TC_vgcs_listener_det(charstring id) runs on ConnHdlr |
| 337 | { |
| 338 | var octetstring uplink_access := '25'O; |
| 339 | var RSL_Message rm; |
| 340 | var GsmFrameNumber fn; |
| 341 | |
| 342 | f_l1_tune(L1CTL); |
| 343 | RSL.clear; |
| 344 | |
| 345 | /* Activate channel on the BTS side. */ |
| 346 | log("Activating VGCS channel."); |
| 347 | f_rsl_chan_act(g_pars.chan_mode); |
| 348 | |
| 349 | /* Enable dedicated mode. */ |
| 350 | f_l1ctl_est_dchan(L1CTL, g_pars); |
| 351 | |
| 352 | /* Send UPLINK ACCESS on VGCS channel. */ |
| 353 | log("Send UPLINK ACCESS."); |
| 354 | fn := f_L1CTL_RACH(L1CTL, oct2int(uplink_access), chan_nr := g_pars.chan_nr); |
| 355 | |
| 356 | /* Wait for listener detection. */ |
| 357 | timer T := 2.0; |
| 358 | T.start; |
| 359 | alt { |
| 360 | [] RSL.receive(tr_RSL_LISTENER_DET(g_pars.chan_nr, ?)) -> value rm { |
| 361 | log("RSL Talker Listener has been detected: ", rm); |
| 362 | T.stop; |
| 363 | } |
| 364 | [] RSL.receive(tr_RSL_CHAN_RQD(?, ?, ?, ?)) -> value rm { |
| 365 | setverdict(fail, "RSL_CHAN_RQD was not expected: ", rm); |
| 366 | T.stop; |
| 367 | } |
| 368 | [] RSL.receive { repeat; } |
| 369 | [] T.timeout { |
| 370 | setverdict(fail, "Timeout waiting for RSL Listener Detect."); |
| 371 | } |
| 372 | } |
| 373 | |
| 374 | /* Send UPLINK ACCESS on VGCS channel. */ |
| 375 | log("Send second UPLINK ACCESS."); |
| 376 | fn := f_L1CTL_RACH(L1CTL, oct2int(uplink_access), chan_nr := g_pars.chan_nr); |
| 377 | |
| 378 | /* Wait for listener detection. */ |
| 379 | T.start; |
| 380 | alt { |
| 381 | [] RSL.receive(tr_RSL_LISTENER_DET(g_pars.chan_nr, ?)) { |
| 382 | setverdict(fail, "RSL Listener Detect has been detected, but not expected!"); |
| 383 | T.stop; |
| 384 | } |
| 385 | [] RSL.receive(tr_RSL_CHAN_RQD(?, ?, ?, ?)) -> value rm { |
| 386 | setverdict(fail, "RSL_CHAN_RQD was not expected: ", rm); |
| 387 | T.stop; |
| 388 | } |
| 389 | [] RSL.receive { repeat; } |
| 390 | [] T.timeout { |
| 391 | log("Timeout waiting for RSL Listener Detect, as expected."); |
| 392 | } |
| 393 | } |
| 394 | |
| 395 | /* Deactivate and cleanup. */ |
| 396 | f_vgcs_cleanup(); |
| 397 | } |
| 398 | testcase TC_vgcs_listener_det() runs on test_CT |
| 399 | { |
| 400 | var template RSL_IE_ChannelMode ch_mode; |
| 401 | var ConnHdlrPars pars; |
| 402 | var ConnHdlr vc_conn; |
| 403 | |
| 404 | f_init(); |
| 405 | |
| 406 | ch_mode := ts_RSL_ChanMode(RSL_CHRT_TCH_F_GROUP, RSL_CMOD_SP_GSM1); |
| 407 | pars := valueof(t_Pars(t_RslChanNr_Bm(1), ch_mode)); |
| 408 | vc_conn := f_start_handler(refers(f_TC_vgcs_listener_det), pars); |
| 409 | vc_conn.done; |
| 410 | |
| 411 | Misc_Helpers.f_shutdown(__BFILE__, __LINE__); |
| 412 | } |
| 413 | |
Harald Welte | 5a1d727 | 2023-05-10 19:49:44 +0200 | [diff] [blame] | 414 | control { |
| 415 | execute( TC_vbs_notification() ); |
Andreas Eversberg | 4801baa | 2023-07-17 11:45:38 +0200 | [diff] [blame] | 416 | execute( TC_vgcs_uplink_free_and_busy() ); |
Andreas Eversberg | 7766e3d | 2023-07-18 09:02:14 +0200 | [diff] [blame] | 417 | execute( TC_vgcs_talker_fail() ); |
Andreas Eversberg | 083202a | 2023-07-18 14:47:57 +0200 | [diff] [blame] | 418 | execute( TC_vgcs_talker_est_rel() ); |
Andreas Eversberg | 92c2dca | 2023-07-18 15:29:57 +0200 | [diff] [blame] | 419 | execute( TC_vgcs_listener_det() ); |
Harald Welte | 5a1d727 | 2023-05-10 19:49:44 +0200 | [diff] [blame] | 420 | |
| 421 | } |
| 422 | |
| 423 | } |