Harald Welte | 97cca2f | 2019-05-30 16:33:38 +0200 | [diff] [blame] | 1 | module BTS_Tests_LAPDm { |
Harald Welte | f654332 | 2017-07-16 07:35:10 +0200 | [diff] [blame] | 2 | |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 3 | import from GSM_Types all; |
| 4 | import from Osmocom_Types all; |
| 5 | import from LAPDm_RAW_PT all; |
| 6 | import from LAPDm_Types all; |
Harald Welte | 2f2b2b7 | 2019-05-31 22:24:57 +0200 | [diff] [blame] | 7 | import from RSL_Types all; |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 8 | import from BTS_Tests all; |
Harald Welte | 2f2b2b7 | 2019-05-31 22:24:57 +0200 | [diff] [blame] | 9 | import from Misc_Helpers all; |
Harald Welte | 66110f0 | 2017-07-16 21:05:18 +0200 | [diff] [blame] | 10 | |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 11 | /* test that use exclusively only LAPDm over L1CTL */ |
| 12 | type component lapdm_test_CT { |
| 13 | port LAPDm_PT LAPDM; |
| 14 | var lapdm_CT lapdm_component; |
| 15 | }; |
| 16 | |
| 17 | /* contrary to BTS_Tests.ttcn, we use LAPDm_PT here, a convenience wrapper |
| 18 | * around L1CTL to perform encode/decode of abstract LAPDm frames */ |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 19 | |
Harald Welte | 61332c0 | 2019-05-30 16:45:15 +0200 | [diff] [blame] | 20 | /********************************************************************************* |
| 21 | * Test using only L1CTL/LAPDm |
| 22 | *********************************************************************************/ |
| 23 | |
| 24 | function f_lapdm_init() runs on lapdm_test_CT { |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 25 | /* create the LAPDm component */ |
| 26 | lapdm_component := lapdm_CT.create; |
| 27 | /* connect our own LAPDM port to the LAPDM Service Provider of the LAPDm component */ |
| 28 | connect(self:LAPDM, lapdm_component:LAPDM_SP); |
| 29 | /* connect the LAPDm compoent's lower-side port to the system L1CTL port (which is internally |
| 30 | * connected to the Unix Domain Socket test port */ |
| 31 | map(lapdm_component:L1CTL, system:L1CTL); |
| 32 | |
| 33 | /* start the LAPDm parallel component calling it's local function LAPDmStart */ |
| 34 | lapdm_component.start(LAPDmStart()); |
| 35 | } |
| 36 | |
Harald Welte | 2f2b2b7 | 2019-05-31 22:24:57 +0200 | [diff] [blame] | 37 | function f_lapdm_exit() runs on lapdm_test_CT { |
| 38 | lapdm_component.stop; |
| 39 | lapdm_component.done; |
| 40 | unmap(lapdm_component:L1CTL, system:L1CTL); |
| 41 | } |
| 42 | |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 43 | /* master function establishing a dedicated radio channel (takes care of RACH/IMM.ASS handling) */ |
| 44 | function f_establish_dcch() runs on lapdm_test_CT { |
Harald Welte | 2f2b2b7 | 2019-05-31 22:24:57 +0200 | [diff] [blame] | 45 | var BCCH_tune_req tune_req := { arfcn := { false, mp_trx0_arfcn }, combined_ccch := true }; |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 46 | var DCCH_establish_req est_req := { ra := 23 }; |
| 47 | |
| 48 | LAPDM.send(tune_req); |
| 49 | LAPDM.send(est_req); |
| 50 | LAPDM.receive(DCCH_establish_res:?); |
| 51 | } |
| 52 | |
Harald Welte | 2f2b2b7 | 2019-05-31 22:24:57 +0200 | [diff] [blame] | 53 | /* master function switching to a dedicated radio channel */ |
| 54 | function f_switch_dcch(Arfcn arfcn, RslChannelNr chan_nr, GsmTsc tsc) runs on lapdm_test_CT { |
| 55 | var BCCH_tune_req tune_req := { arfcn := arfcn, combined_ccch := true }; |
| 56 | var DCCH_switch_req sw_req := { arfcn, chan_nr, tsc }; |
| 57 | |
| 58 | LAPDM.send(tune_req); |
| 59 | LAPDM.send(sw_req); |
| 60 | LAPDM.receive(DCCH_switch_res:?); |
| 61 | } |
| 62 | |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 63 | /* helper function releasing dedicated radio channel physically (no Um signaling!) */ |
| 64 | function f_release_dcch() runs on lapdm_test_CT { |
| 65 | var DCCH_release_req rel_req := {}; |
| 66 | LAPDM.send(rel_req); |
| 67 | } |
| 68 | |
| 69 | template LAPDm_ph_data t_PH_DATA(template GsmSapi sapi, template boolean sacch, template LapdmFrame frame) := { |
| 70 | sacch := sacch, |
| 71 | sapi := sapi, |
| 72 | lapdm := frame |
| 73 | } |
| 74 | /* template for a valid SABM frame */ |
| 75 | template LapdmFrame LAPDm_B_SABM(template GsmSapi sapi, octetstring payload) := { |
| 76 | ab := { |
| 77 | addr := tr_LapdmAddr(sapi, false), |
| 78 | ctrl := tr_LapdmCtrlSABM(true), |
| 79 | len := lengthof(payload), |
| 80 | m := false, |
| 81 | el := 1, |
| 82 | payload := payload |
Harald Welte | c38611b | 2019-05-30 16:33:58 +0200 | [diff] [blame] | 83 | } |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 84 | } |
Harald Welte | c38611b | 2019-05-30 16:33:58 +0200 | [diff] [blame] | 85 | |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 86 | /* template for a valid UA frame */ |
| 87 | template LapdmFrame tr_LAPDm_B_UA(template GsmSapi sapi, template octetstring payload) := { |
| 88 | ab := { |
| 89 | addr := tr_LapdmAddr(sapi, false), |
| 90 | ctrl := tr_LapdmCtrlUA(true), |
| 91 | len := ?, |
| 92 | m := false, |
| 93 | el := 1, |
| 94 | payload := payload |
Harald Welte | 52c713c | 2017-07-16 15:44:44 +0200 | [diff] [blame] | 95 | } |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 96 | } |
Harald Welte | 52c713c | 2017-07-16 15:44:44 +0200 | [diff] [blame] | 97 | |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 98 | /* template for a valid UA frame */ |
| 99 | template LapdmFrame LAPDm_B_UA(template GsmSapi sapi, octetstring payload) := { |
| 100 | ab := { |
| 101 | addr := tr_LapdmAddr(sapi, false), |
| 102 | ctrl := tr_LapdmCtrlUA(true), |
| 103 | len := lengthof(payload), |
| 104 | m := false, |
| 105 | el := 1, |
| 106 | payload := payload |
Harald Welte | 9e4725d | 2017-07-16 23:18:09 +0200 | [diff] [blame] | 107 | } |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 108 | } |
Harald Welte | 66110f0 | 2017-07-16 21:05:18 +0200 | [diff] [blame] | 109 | |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 110 | /* template for a valid UI frame */ |
| 111 | template LapdmFrame LAPDm_B_UI(template GsmSapi sapi, octetstring payload) := { |
| 112 | ab := { |
| 113 | addr := tr_LapdmAddr(sapi, true), |
| 114 | ctrl := tr_LapdmCtrlUI(false), |
| 115 | len := lengthof(payload), |
| 116 | m := false, |
| 117 | el := 1, |
| 118 | payload := payload |
Harald Welte | 9e4725d | 2017-07-16 23:18:09 +0200 | [diff] [blame] | 119 | } |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 120 | } |
Harald Welte | 9e4725d | 2017-07-16 23:18:09 +0200 | [diff] [blame] | 121 | |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 122 | template LapdmFrame t_nopayload(template GsmSapi sapi) := { |
| 123 | ab := { |
| 124 | addr := tr_LapdmAddr(sapi, true), |
| 125 | ctrl := ?, |
| 126 | len := 0, |
| 127 | m := false, |
| 128 | el := 1, |
| 129 | payload := ''O |
Harald Welte | d4ba7ff | 2017-07-17 21:00:48 +0200 | [diff] [blame] | 130 | } |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 131 | } |
| 132 | |
| 133 | template LapdmFrame LAPDm_B_DISC(template GsmSapi sapi) modifies t_nopayload := { |
| 134 | ab := { |
| 135 | ctrl := tr_LapdmCtrlDISC(true) |
| 136 | } |
| 137 | } |
| 138 | |
| 139 | template LapdmFrame LAPDm_B_RR(template GsmSapi sapi, template uint3_t nr) modifies t_nopayload := { |
| 140 | ab := { |
| 141 | ctrl := tr_LapdmCtrlRR(nr, false) |
| 142 | } |
| 143 | } |
| 144 | |
| 145 | |
| 146 | function f_test_sabm_results_in_ua(uint8_t sapi, boolean use_sacch, octetstring payload) runs on lapdm_test_CT return boolean { |
| 147 | var LAPDm_ph_data phd; |
| 148 | var boolean result := false; |
| 149 | timer T := 5.0; |
| 150 | |
| 151 | f_establish_dcch(); |
| 152 | LAPDM.send(t_PH_DATA(sapi, use_sacch, LAPDm_B_SABM(sapi, payload))); |
| 153 | log("====> expecting ", t_PH_DATA(sapi, use_sacch, LAPDm_B_UA(sapi, payload))); |
| 154 | T.start |
| 155 | alt { |
| 156 | [] LAPDM.receive(t_PH_DATA(?, use_sacch, LAPDm_B_UA(sapi, payload))) { result := true; } |
| 157 | [] LAPDM.receive(t_PH_DATA(?, use_sacch, ?)) -> value phd { log("Other msg on DCH: ", phd); repeat; } |
| 158 | [] LAPDM.receive(t_PH_DATA(?, ?, ?)) -> value phd { log("Other PH-DATA: ", phd); repeat; } |
| 159 | [] T.timeout { } |
| 160 | } |
| 161 | LAPDM.send(t_PH_DATA(sapi, use_sacch, LAPDm_B_RR(sapi, 0))); |
| 162 | f_release_dcch(); |
| 163 | return result; |
| 164 | } |
| 165 | |
| 166 | testcase TC_sabm_ua_dcch_sapi0() runs on lapdm_test_CT { |
Harald Welte | 61332c0 | 2019-05-30 16:45:15 +0200 | [diff] [blame] | 167 | f_lapdm_init(); |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 168 | if (not f_test_sabm_results_in_ua(0, false, 'FEFE'O)) { |
| 169 | setverdict(fail); |
| 170 | } |
| 171 | setverdict(pass); |
| 172 | } |
| 173 | |
| 174 | testcase TC_sabm_ua_dcch_sapi0_nopayload() runs on lapdm_test_CT { |
Harald Welte | 61332c0 | 2019-05-30 16:45:15 +0200 | [diff] [blame] | 175 | f_lapdm_init(); |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 176 | if (f_test_sabm_results_in_ua(0, false, ''O)) { |
| 177 | setverdict(fail, "Initial SABM/UA must contain L3 payload but BTS accepts without"); |
| 178 | } |
| 179 | setverdict(pass); |
| 180 | } |
| 181 | |
| 182 | testcase TC_sabm_ua_dcch_sapi3() runs on lapdm_test_CT { |
Harald Welte | 61332c0 | 2019-05-30 16:45:15 +0200 | [diff] [blame] | 183 | f_lapdm_init(); |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 184 | if (f_test_sabm_results_in_ua(3, false, 'FEFE'O)) { |
| 185 | setverdict(fail, "Initial SABM/UA must be on SAPI0, but BTS accepts SAPI=3"); |
| 186 | } |
| 187 | setverdict(pass); |
| 188 | } |
| 189 | |
| 190 | testcase TC_sabm_ua_dcch_sapi4() runs on lapdm_test_CT { |
Harald Welte | 61332c0 | 2019-05-30 16:45:15 +0200 | [diff] [blame] | 191 | f_lapdm_init(); |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 192 | if (f_test_sabm_results_in_ua(4, false, 'FEFE'O)) { |
| 193 | setverdict(fail, "Initial SABM/UA must be on SAPI0, but BTS accepts SAPI=4"); |
| 194 | } |
| 195 | setverdict(pass); |
| 196 | } |
| 197 | |
| 198 | testcase TC_sabm_contention() runs on lapdm_test_CT { |
| 199 | var LAPDm_ph_data phd; |
| 200 | const octetstring payload := '0102030405'O; |
| 201 | const GsmSapi sapi := 0; |
| 202 | const boolean use_sacch := false; |
| 203 | timer T := 5.0; |
| 204 | |
Harald Welte | 61332c0 | 2019-05-30 16:45:15 +0200 | [diff] [blame] | 205 | f_lapdm_init(); |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 206 | |
| 207 | f_establish_dcch(); |
| 208 | /* first frame is our real SABM */ |
| 209 | LAPDM.send(t_PH_DATA(sapi, use_sacch, LAPDm_B_SABM(sapi, payload))); |
| 210 | /* second frame is a SABM with different payload, which BTS has to ignore according to 8.4.1.4 */ |
| 211 | LAPDM.send(t_PH_DATA(sapi, use_sacch, LAPDm_B_SABM(sapi, 'ABCDEF'O))); |
| 212 | log("====> expecting ", t_PH_DATA(sapi, use_sacch, LAPDm_B_UA(sapi, payload))); |
| 213 | T.start |
| 214 | alt { |
| 215 | [] LAPDM.receive(t_PH_DATA(?, use_sacch, LAPDm_B_UA(sapi, payload))) { setverdict(pass); repeat; } |
| 216 | [] LAPDM.receive(t_PH_DATA(?, use_sacch, tr_LAPDm_B_UA(sapi, ?))) { |
| 217 | setverdict(fail, "Second SABM was responded to during contention resolution"); |
Harald Welte | d4ba7ff | 2017-07-17 21:00:48 +0200 | [diff] [blame] | 218 | } |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 219 | [] LAPDM.receive { repeat }; |
| 220 | [] T.timeout { } |
Harald Welte | 9e4725d | 2017-07-16 23:18:09 +0200 | [diff] [blame] | 221 | } |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 222 | f_release_dcch(); |
| 223 | } |
Harald Welte | 9e4725d | 2017-07-16 23:18:09 +0200 | [diff] [blame] | 224 | |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 225 | /* we test that a re-transmitted SABM with identical payload will result in the retransmission of a |
| 226 | * UA. This is required during the contention resolution procedure as specified in 8.4.1.4 */ |
| 227 | testcase TC_sabm_retransmit() runs on lapdm_test_CT { |
| 228 | const octetstring payload := '00FEFEDEADBEEF'O; |
Harald Welte | 61332c0 | 2019-05-30 16:45:15 +0200 | [diff] [blame] | 229 | f_lapdm_init(); |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 230 | if (not f_test_sabm_results_in_ua(0, false, payload)) { |
| 231 | setverdict(fail, "UA not received for first SABM"); |
Harald Welte | 599faa1 | 2017-07-17 21:49:24 +0200 | [diff] [blame] | 232 | } |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 233 | if (not f_test_sabm_results_in_ua(0, false, payload)) { |
| 234 | setverdict(fail, "UA not received for second SABM"); |
Harald Welte | d4ba7ff | 2017-07-17 21:00:48 +0200 | [diff] [blame] | 235 | } |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 236 | setverdict(pass); |
| 237 | } |
Harald Welte | d4ba7ff | 2017-07-17 21:00:48 +0200 | [diff] [blame] | 238 | |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 239 | testcase TC_foo() runs on lapdm_test_CT { |
| 240 | var LapdmFrame lf; |
Harald Welte | d4ba7ff | 2017-07-17 21:00:48 +0200 | [diff] [blame] | 241 | /* |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 242 | var LapdmFrame lf := valueof(LAPDm_B_UA(0, ''O)); |
| 243 | log("ENC UA: ", enc_LapdmFrame(lf)); |
| 244 | lf := valueof(LAPDm_B_UI(0, ''O)); |
| 245 | log("ENC UI B: ", enc_LapdmFrame(lf)); |
| 246 | log("ENC UI B: ", enc_LapdmFrameB(lf.b)); |
Harald Welte | d4ba7ff | 2017-07-17 21:00:48 +0200 | [diff] [blame] | 247 | |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 248 | log("DEC UI AF: ", dec_LapdmAddressField('03'O)); |
Harald Welte | d4ba7ff | 2017-07-17 21:00:48 +0200 | [diff] [blame] | 249 | */ |
Harald Welte | ffcad68 | 2017-07-30 22:51:04 +0200 | [diff] [blame] | 250 | |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 251 | lf := valueof(LAPDm_B_RR(0, 0)); |
| 252 | log("ENC RR: ", enc_LapdmFrame(lf)); |
Harald Welte | ffcad68 | 2017-07-30 22:51:04 +0200 | [diff] [blame] | 253 | |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 254 | lf := valueof(LAPDm_B_UA(0, ''O)); |
| 255 | log("ENC UA: ", enc_LapdmFrame(lf)); |
Harald Welte | ffcad68 | 2017-07-30 22:51:04 +0200 | [diff] [blame] | 256 | |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 257 | lf := valueof(LAPDm_B_UI(0, ''O)); |
| 258 | log("ENC UI: ", enc_LapdmFrame(lf)); |
Harald Welte | ffcad68 | 2017-07-30 22:51:04 +0200 | [diff] [blame] | 259 | |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 260 | log("DEC UI CU: ", dec_LapdmCtrlU('03'O)); |
| 261 | log("DEC UI CT: ", dec_LapdmCtrl('03'O)); |
Harald Welte | d4ba7ff | 2017-07-17 21:00:48 +0200 | [diff] [blame] | 262 | |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 263 | log("DEC UA: ", dec_LapdmFrameAB('017301'O)); |
| 264 | log("DEC UI: ", dec_LapdmFrameAB('030301'O)); |
| 265 | log("DEC I: ", dec_LapdmFrameAB('030001'O)); |
| 266 | log("DEC S: ", dec_LapdmFrameAB('030101'O)); |
| 267 | log("DEC: ", dec_LapdmFrameAB('030301'O)); |
| 268 | log("DEC: ", dec_LapdmFrameAB('0303012B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B'O)); |
| 269 | } |
Harald Welte | d4ba7ff | 2017-07-17 21:00:48 +0200 | [diff] [blame] | 270 | |
Harald Welte | 2f2b2b7 | 2019-05-31 22:24:57 +0200 | [diff] [blame] | 271 | /********************************************************************************* |
| 272 | * Test using both L1CTL/LAPDm and RSL |
| 273 | *********************************************************************************/ |
| 274 | |
| 275 | private function fp_common_init() runs on ConnHdlr |
| 276 | { |
| 277 | /* undo what f_start_handler is doing and pull LAPDm_CT into the loop */ |
| 278 | unmap(self:L1CTL, system:L1CTL); |
| 279 | f_lapdm_init(); |
| 280 | /* activate the channel on the BTS side */ |
| 281 | f_rsl_chan_act(g_pars.chan_mode, false, {}); |
| 282 | /* activate the channel on the MS side */ |
| 283 | f_switch_dcch({false, mp_trx0_arfcn}, g_chan_nr, 7); |
| 284 | } |
| 285 | |
| 286 | private function fp_common_fini() runs on ConnHdlr |
| 287 | { |
| 288 | f_release_dcch(); |
| 289 | f_rsl_chan_deact(); |
| 290 | f_lapdm_exit(); |
| 291 | } |
| 292 | |
| 293 | /* Verify that the BTS is re-transmitting SABM messages after T200 timeout, inspired |
| 294 | by 3GPP TS 51.010-1 25.2.1.1.2.1 + 25.2.1.2.4 */ |
| 295 | private function f_TC_sabm_retransmit_bts(charstring id) runs on ConnHdlr { |
| 296 | const integer sapi := 3; /* BTS may not establish SAPI=0 outbound */ |
| 297 | fp_common_init(); |
| 298 | |
| 299 | LAPDM.clear; |
| 300 | RSL.send(ts_RSL_EST_REQ(g_chan_nr, ts_RslLinkID_DCCH(sapi))); |
| 301 | |
| 302 | timer T := 8.0; |
| 303 | var integer sabm_received := 0; |
| 304 | T.start; |
| 305 | alt { |
| 306 | [] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_SABM(sapi, ?, ?, ''O))) { |
| 307 | sabm_received := sabm_received + 1; |
| 308 | repeat; |
| 309 | } |
| 310 | [] LAPDM.receive { repeat; } |
| 311 | [] T.timeout { } |
| 312 | } |
| 313 | if (sabm_received == 0) { |
| 314 | setverdict(fail, "No SABM observed at all!"); |
| 315 | } else if (sabm_received != 6) { |
| 316 | setverdict(fail, "Incorrect number of SABM re-transmissions of observed: ", |
| 317 | sabm_received); |
| 318 | } else { |
| 319 | setverdict(pass, "Received ", sabm_received, " SABM"); |
| 320 | } |
| 321 | |
| 322 | fp_common_fini(); |
| 323 | } |
| 324 | testcase TC_sabm_retransmit_bts() runs on test_CT { |
| 325 | var ConnHdlrPars pars := valueof(t_Pars(t_RslChanNr_Bm(1), ts_RSL_ChanMode_SIGN)); |
| 326 | f_testmatrix_each_chan(pars, refers(f_TC_sabm_retransmit_bts)); |
| 327 | } |
| 328 | |
| 329 | |
| 330 | type record LapdmNamedFrame { |
| 331 | charstring name, |
| 332 | LapdmFrame lapdm |
| 333 | }; |
| 334 | |
| 335 | /* Test that the BTS will ignore receipt of frames other than a UA when |
| 336 | * received in response to the SABM frame, inspired from 3GPP TS 51.010-1 |
| 337 | * Section 25.2.1.1.2.3 */ |
| 338 | private function f_TC_sabm_invalid_resp2(charstring id, LapdmNamedFrame err_frame) runs on ConnHdlr { |
| 339 | var integer sapi := err_frame.lapdm.ab.addr.sapi; |
| 340 | fp_common_init(); |
| 341 | |
| 342 | /* Establish Request via RSL; Expect SABM on LAPDm side */ |
| 343 | LAPDM.clear; |
| 344 | RSL.send(ts_RSL_EST_REQ(g_chan_nr, ts_RslLinkID_DCCH(sapi))); |
| 345 | alt { |
| 346 | [] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_SABM(sapi, ?, ?, ''O))); |
| 347 | [] LAPDM.receive { repeat; } |
| 348 | } |
| 349 | |
| 350 | /* send erroneous response to SABM */ |
| 351 | LAPDM.send(t_PH_DATA(0, false, err_frame.lapdm)); |
| 352 | |
| 353 | /* expect a SABM retransmission of the BTS */ |
| 354 | timer T := 3.0; |
| 355 | T.start; |
| 356 | alt { |
| 357 | [] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_SABM(sapi, ?, ?, ''O))) { |
| 358 | setverdict(pass); |
| 359 | } |
| 360 | [] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_UI(0, ?, ''O))) { repeat; } |
| 361 | [] LAPDM.receive(t_PH_DATA(0, false, ?)) { |
| 362 | setverdict(fail, "Received unexpected LAPDm frame instead of SABM after sending ", |
| 363 | err_frame.name); |
| 364 | } |
| 365 | [] LAPDM.receive { repeat; } |
| 366 | [] T.timeout { |
| 367 | setverdict(fail, "Timeout waiting for SABM retransmission after sending ", |
| 368 | err_frame.name); |
| 369 | } |
| 370 | } |
| 371 | |
| 372 | fp_common_fini(); |
| 373 | } |
| 374 | private function f_TC_sabm_invalid_resp(charstring id) runs on ConnHdlr { |
| 375 | const integer sapi := 3; /* BTS may not establish SAPI=0 outbound */ |
| 376 | var LapdmNamedFrame err_frame[3] := { |
| 377 | { "I", valueof(ts_LAPDm_I(sapi, c_r := cr_MO_CMD, p := true, nr := 0, ns := 0, |
| 378 | l3 := '01020304'O)) }, |
| 379 | { "RR", valueof(ts_LAPDm_RR(sapi, c_r := cr_MO_CMD, p := true, nr := 0)) }, |
| 380 | { "REJ" , valueof(ts_LAPDm_REJ(sapi, c_r := cr_MO_CMD, p := true, nr := 0)) } |
| 381 | }; |
| 382 | var integer i; |
| 383 | |
| 384 | for (i := 0; i < lengthof(err_frame); i := i+1) { |
| 385 | f_TC_sabm_invalid_resp2(id, err_frame[i]) |
| 386 | } |
| 387 | } |
| 388 | testcase TC_sabm_invalid_resp() runs on test_CT { |
| 389 | var ConnHdlrPars pars := valueof(t_Pars(t_RslChanNr_Bm(1), ts_RSL_ChanMode_SIGN)); |
| 390 | f_testmatrix_each_chan(pars, refers(f_TC_sabm_invalid_resp)); |
| 391 | } |
| 392 | |
| 393 | /* Test that the BTS will not re-transmit SABM frames after receiving a DM response, |
| 394 | * inspired from 3GPP TS 51.010-1 Section 25.2.1.1.3 */ |
| 395 | private function f_TC_sabm_dm(charstring id) runs on ConnHdlr { |
| 396 | const integer sapi := 3; /* BTS may not establish SAPI=0 outbound */ |
| 397 | fp_common_init(); |
| 398 | |
| 399 | /* Establish Request via RSL; Expect SABM on LAPDm side */ |
| 400 | LAPDM.clear; |
| 401 | RSL.send(ts_RSL_EST_REQ(g_chan_nr, ts_RslLinkID_DCCH(sapi))); |
| 402 | alt { |
| 403 | [] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_SABM(sapi, ?, ?, ''O))); |
| 404 | [] LAPDM.receive { repeat; } |
| 405 | } |
| 406 | |
| 407 | /* send DM response to SABM */ |
| 408 | RSL.clear; |
| 409 | LAPDM.send(t_PH_DATA(0, false, ts_LAPDm_DM(sapi, c_r:=cr_MO_RSP, f:=true))); |
| 410 | alt { |
| 411 | [] RSL.receive(tr_RSL_REL_IND(g_chan_nr, tr_RslLinkID_DCCH(sapi))); |
| 412 | [] RSL.receive { repeat; } |
| 413 | } |
| 414 | |
| 415 | /* expect no SABM retransmission of the BTS */ |
| 416 | timer T := 3.0; |
| 417 | T.start; |
| 418 | alt { |
| 419 | [] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_SABM(sapi, ?, ?, ''O))) { |
| 420 | setverdict(fail, "Received unexpected SABM retransmission"); |
| 421 | } |
| 422 | [] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_UI(0, ?, ''O))) { repeat; } |
| 423 | [] LAPDM.receive(t_PH_DATA(0, false, ?)) { |
| 424 | setverdict(fail, "Received unexpected LAPDm frame"); |
| 425 | } |
| 426 | [] LAPDM.receive { repeat; } |
| 427 | [] T.timeout { |
| 428 | setverdict(pass); |
| 429 | } |
| 430 | } |
| 431 | |
| 432 | fp_common_fini(); |
| 433 | } |
| 434 | testcase TC_sabm_dm() runs on test_CT { |
| 435 | var ConnHdlrPars pars := valueof(t_Pars(t_RslChanNr_Bm(1), ts_RSL_ChanMode_SIGN)); |
| 436 | f_testmatrix_each_chan(pars, refers(f_TC_sabm_dm)); |
| 437 | } |
| 438 | |
| 439 | /* Test the full LAPDm establishment while simulating the loss of the initial SABM or UA |
| 440 | * frame, requiring the BTS to re-transmit one SABM and then following up all the way to |
| 441 | * dedicated mode; inspired by 3GPP TS 51.010-1 25.2.1.2.2 */ |
| 442 | private function f_TC_establish_ign_first_sabm(charstring id) runs on ConnHdlr { |
| 443 | const integer sapi := 3; /* BTS may not establish SAPI=0 outbound */ |
| 444 | var integer num_sabm := 0; |
| 445 | var RslLinkId link_id := valueof(ts_RslLinkID_DCCH(sapi)); |
| 446 | timer T := 3.0; |
| 447 | |
| 448 | fp_common_init(); |
| 449 | |
| 450 | /* Establish Request via RSL */ |
| 451 | LAPDM.clear; |
| 452 | RSL.send(ts_RSL_EST_REQ(g_chan_nr, link_id)); |
| 453 | /* Expect two SABM (retransmit) */ |
| 454 | T.start; |
| 455 | alt { |
| 456 | [] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_SABM(sapi, ?, ?, ''O))) { |
| 457 | num_sabm := num_sabm + 1; |
| 458 | if (num_sabm < 2) { |
| 459 | repeat; |
| 460 | } |
| 461 | } |
| 462 | [] LAPDM.receive { repeat; } |
| 463 | } |
| 464 | |
| 465 | /* send UA response to SABM */ |
| 466 | RSL.clear; |
| 467 | LAPDM.send(t_PH_DATA(0, false, ts_LAPDm_UA(sapi, c_r:=cr_MO_RSP, f:=true, l3:=''O))); |
| 468 | alt { |
| 469 | [] RSL.receive(tr_RSL_EST_CONF(g_chan_nr, link_id)); |
| 470 | [] RSL.receive { repeat; } |
| 471 | } |
| 472 | |
| 473 | /* Send I frame from BTS to MS */ |
| 474 | var octetstring l3 := f_rnd_octstring(10); |
| 475 | RSL.send(ts_RSL_DATA_REQ(g_chan_nr, link_id, l3)); |
| 476 | alt { |
| 477 | [] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_I(sapi, c_r:=cr_MT_CMD, p:=false, |
| 478 | nr:=0, ns:=0, l3:=l3))); |
| 479 | [] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_UI(0, ?, ''O))) { repeat; } |
| 480 | [] LAPDM.receive(t_PH_DATA(0, true, ?)) { repeat; } |
| 481 | [] LAPDM.receive { setverdict(fail, "Unexpected LAPDm received"); } |
| 482 | } |
| 483 | /* Send RR frame in response */ |
| 484 | LAPDM.send(t_PH_DATA(0, false, ts_LAPDm_RR(sapi, c_r:=cr_MO_RSP, p:=false, nr:=1))); |
| 485 | |
| 486 | /* expect idle UI Frame from BTS */ |
| 487 | alt { |
| 488 | [] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_UI(0, ?, ''O))) { |
| 489 | setverdict(pass); |
| 490 | } |
| 491 | [] LAPDM.receive(t_PH_DATA(0, true, ?)) { repeat; } |
| 492 | [] LAPDM.receive { setverdict(fail, "Unexpected LAPDm received"); } |
| 493 | } |
| 494 | |
| 495 | fp_common_fini(); |
| 496 | } |
| 497 | testcase TC_establish_ign_first_sabm() runs on test_CT { |
| 498 | var ConnHdlrPars pars := valueof(t_Pars(t_RslChanNr_Bm(1), ts_RSL_ChanMode_SIGN)); |
| 499 | f_testmatrix_each_chan(pars, refers(f_TC_establish_ign_first_sabm)); |
| 500 | } |
| 501 | |
| 502 | /* ignore all SACCH frames */ |
| 503 | private altstep as_lapdm_acch() runs on ConnHdlr { |
| 504 | [] LAPDM.receive(t_PH_DATA(0, true, ?)) { repeat; } |
| 505 | } |
| 506 | /* ignore all LAPDm idle frames (UI) */ |
| 507 | private altstep as_lapdm_idle() runs on ConnHdlr { |
| 508 | [] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_UI(0, ?, ''O))) { repeat; } |
| 509 | } |
| 510 | /* ignore all measurement reports */ |
| 511 | private altstep as_rsl_meas_rep() runs on ConnHdlr { |
| 512 | [] RSL.receive(tr_RSL_MEAS_RES(g_chan_nr)) { repeat; } |
| 513 | } |
| 514 | /* fail if we receive an RSL ERROR IND */ |
| 515 | private altstep as_rsl_fail_err() runs on ConnHdlr { |
| 516 | var RSL_Message rx_rsl; |
| 517 | [] RSL.receive(tr_RSL_ERROR_IND(g_chan_nr, ?, ?)) { |
| 518 | setverdict(fail, "Received RSL ERROR IND ", rx_rsl); |
| 519 | } |
| 520 | } |
| 521 | /* all of the above */ |
| 522 | private altstep as_ignore_background() runs on ConnHdlr { |
| 523 | [] as_lapdm_acch(); |
| 524 | [] as_lapdm_idle(); |
| 525 | [] as_rsl_meas_rep(); |
| 526 | [] as_rsl_fail_err(); |
| 527 | } |
| 528 | |
| 529 | /* Test the operation of Layer 2 sequence numbering. |
| 530 | * dedicated mode; inspired by 3GPP TS 51.010-1 25.2.2.1 */ |
| 531 | private function f_TC_iframe_seq_and_ack(charstring id) runs on ConnHdlr { |
| 532 | const integer sapi := 0; |
| 533 | var RslLinkId link_id := valueof(ts_RslLinkID_DCCH(sapi)); |
| 534 | var octetstring l3 := f_rnd_octstring(18); |
| 535 | var default d; |
| 536 | timer T := 3.0; |
| 537 | |
| 538 | fp_common_init(); |
| 539 | |
| 540 | /* some common altstep for meas res and other background noise */ |
| 541 | d := activate(as_ignore_background()); |
| 542 | RSL.clear; |
| 543 | LAPDM.clear; |
| 544 | |
| 545 | /* MO Establish Request via LADPm: SAPI = 0, C = 0, P = 1, M = 0, 0 ≤ L ≤ N201.. */ |
| 546 | LAPDM.send(t_PH_DATA(0, false, ts_LAPDm_SABM(sapi, c_r:=cr_MO_CMD, p:=true, l3:=l3))); |
| 547 | RSL.receive(tr_RSL_EST_IND(g_chan_nr, link_id, l3)); |
| 548 | /* UA: SAPI = 0, R = 0, F = 1, M = 0, L = L of SABM. */ |
| 549 | LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_UA(sapi, cr_MT_RSP, f:=true, l3:=l3))); |
| 550 | |
| 551 | var integer last_ns_rx := 0; |
| 552 | |
| 553 | for (var integer i := 0; i < 10; i := i+1) { |
| 554 | var octetstring l3_mo := f_rnd_octstring(12); |
| 555 | var octetstring l3_mt := f_rnd_octstring(12); |
| 556 | var LAPDm_ph_data pd; |
| 557 | |
| 558 | log("Starting iteration ", i); |
| 559 | /* MT I frame */ |
| 560 | RSL.send(ts_RSL_DATA_REQ(g_chan_nr, link_id, l3_mt)); |
| 561 | alt { |
| 562 | /* SAPI = 0, R = 1, F = 0, M = 0, L = 0. */ |
| 563 | [] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_RR(sapi, c_r:=cr_MT_RSP, p:=false, |
| 564 | nr:=i mod 8))) { |
| 565 | log("Ignoring RR in iteration ", i); |
| 566 | repeat; |
| 567 | } |
| 568 | /* SAPI = 0, C = 1, P = 0, M = 0, 0 ≤ L ≤ N201. */ |
| 569 | [] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_I(sapi, c_r:=cr_MT_CMD, p:=false, |
| 570 | nr:=i mod 8, ns:=i mod 8, |
| 571 | l3:=l3_mt))) -> value pd { |
| 572 | last_ns_rx := pd.lapdm.ab.ctrl.i.n_s; |
| 573 | } |
| 574 | } |
| 575 | /* respond with MO I-frame: SAPI = 0, C = 0, P = 0, M = 0, 0 <= L <= N201. */ |
| 576 | LAPDM.send(t_PH_DATA(0, false, ts_LAPDm_I(sapi, c_r:=cr_MO_CMD, p:=false, |
| 577 | nr:=(last_ns_rx+1)mod 8, |
| 578 | ns:=i mod 8, l3 := l3_mo))); |
| 579 | RSL.receive(tr_RSL_DATA_IND(g_chan_nr, link_id, l3_mo)); |
| 580 | } |
| 581 | log("Completed iteration"); |
| 582 | |
| 583 | deactivate(d); |
| 584 | fp_common_fini(); |
| 585 | } |
| 586 | testcase TC_iframe_seq_and_ack() runs on test_CT { |
| 587 | var ConnHdlrPars pars := valueof(t_Pars(t_RslChanNr_Bm(1), ts_RSL_ChanMode_SIGN)); |
| 588 | f_testmatrix_each_chan(pars, refers(f_TC_iframe_seq_and_ack)); |
| 589 | } |
| 590 | |
| 591 | /* To test that the BTS is able to respond to I frames whilst in the timer recovery state. |
| 592 | * Inspired by 3GPP TS 51.010-1 25.2.2.2 */ |
| 593 | |
| 594 | /* |
| 595 | 1) The BTS is brought into the multiple frame established state |
| 596 | 2) The MS sends an L3 Request asking for IMEI to the MS. |
| 597 | 3) The BTS shall respond with a RR frame though this may be incorporated with |
| 598 | the L3 Response I frame. The MS does not respond to the I frame. |
| 599 | 4) The BTS shall wait for expiry of timer T200 and then repeat the I frame but |
| 600 | with the P bit set to 1. |
| 601 | 5) The MS then sends a valid L3 Request I frame asking for IMEI which |
| 602 | does not acknowledge receipt of the I frame from the BTS. |
| 603 | On the FACCH the BTS may send an RR frame acknowledging the I frame. |
| 604 | 6) The BTS shall repeat the I frame, this frame will acknowledge receipt of |
| 605 | the second I frame from the MS. |
| 606 | 7) The MS then acknowledges receipt of the MS I frame by sending a RR frame. |
| 607 | 8) The BTS shall send the next I frame. The MS acknowledges this I frame. |
| 608 | */ |
| 609 | private function f_TC_iframe_timer_recovery(charstring id) runs on ConnHdlr { |
| 610 | const integer sapi := 0; |
| 611 | var RslLinkId link_id := valueof(ts_RslLinkID_DCCH(sapi)); |
| 612 | var default d; |
| 613 | timer T := 3.0; |
| 614 | |
| 615 | fp_common_init(); |
| 616 | |
| 617 | /* some common altstep for meas res and other background noise */ |
| 618 | d := activate(as_ignore_background()); |
| 619 | RSL.clear; |
| 620 | LAPDM.clear; |
| 621 | |
| 622 | var octetstring l3_mo := f_rnd_octstring(12); |
| 623 | var octetstring l3_mt := f_rnd_octstring(12); |
| 624 | |
| 625 | /* 1) The BTS is brought into the multiple frame established state */ |
| 626 | |
| 627 | /* MO Establish Request via LADPm: SAPI = 0, C = 0, P = 1, M = 0, 0 ≤ L ≤ N201.. */ |
| 628 | LAPDM.send(t_PH_DATA(0, false, ts_LAPDm_SABM(sapi, c_r:=cr_MO_CMD, p:=true, l3:=l3_mo))); |
| 629 | RSL.receive(tr_RSL_EST_IND(g_chan_nr, link_id, l3_mo)); |
| 630 | /* UA: SAPI = 0, R = 0, F = 1, M = 0, L = L of SABM. */ |
| 631 | LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_UA(sapi, cr_MT_RSP, f:=true, l3:=l3_mo))); |
| 632 | |
| 633 | /* 2) The MS sends an L3 Request to the BTS */ |
| 634 | l3_mo := f_rnd_octstring(18); |
| 635 | /* SAPI = 0, C = 1, P = 0, M = 0, 0 ≤ L ≤ N201, N(S) = 0, N(R) = 0. * */ |
| 636 | LAPDM.send(t_PH_DATA(0, false, ts_LAPDm_I(sapi, c_r:=cr_MO_CMD, p:=false, |
| 637 | nr:=0, ns:=0, l3:=l3_mo))); |
| 638 | RSL.receive(tr_RSL_DATA_IND(g_chan_nr, link_id, l3_mo)); |
| 639 | /* 3) The BTS shall respond with a RR frame though this may be incorporated with |
| 640 | the L3 Response I frame. The MS does not respond to the I frame. */ |
| 641 | RSL.send(ts_RSL_DATA_REQ(g_chan_nr, link_id, l3_mt)); |
| 642 | alt { |
| 643 | /* SAPI = 0, R = 1, F = 0, M = 0, L = 0, N(R) = 1. */ |
| 644 | [] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_RR(sapi, c_r:=cr_MT_RSP, p:=false, nr:=1))) { |
| 645 | repeat; |
| 646 | } |
| 647 | /* SAPI = 0, C = 0, P = 0, M = 0, 0 ≤ L ≤ N201, N(R) = 1, N(S) = 0 */ |
| 648 | [] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_I(sapi, c_r:=cr_MT_CMD, p:=false, |
| 649 | nr:=1, ns:=0, l3:=l3_mt))); |
| 650 | } |
| 651 | |
| 652 | /* 4) The BTS shall wait for expiry of timer T200 and then repeat the I frame but |
| 653 | with the P bit set to 1. */ |
| 654 | /* SAPI = 0, C = 0, P = 1, M = 0, 0 ≤ L ≤ N201, N(R) = 1, N(S) = 0. * */ |
| 655 | LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_I(sapi, c_r:=cr_MT_CMD, p:=true, |
| 656 | nr:=1, ns:=0, l3:=l3_mt))); |
| 657 | |
| 658 | /* 5) The MS then sends a valid L3 Request I frame asking for IMEI which |
| 659 | does not acknowledge receipt of the I frame from the BTS. */ |
| 660 | /* SAPI = 0, C = 1, P = 0, M = 0, 0 ≤ L ≤ N201, N(S) = 1, N(R) = 0. * */ |
| 661 | LAPDM.send(t_PH_DATA(0, false, ts_LAPDm_I(sapi, c_r:=cr_MO_CMD, p:=false, |
| 662 | nr:=0, ns:=1, l3 := l3_mo))); |
| 663 | RSL.receive(tr_RSL_DATA_IND(g_chan_nr, link_id, l3_mo)); |
| 664 | alt { |
| 665 | /* On the FACCH the BTS may send an RR frame acknowledging the I frame. */ |
| 666 | /* SAPI = 0, R = 1, F = 0, M = 0, L = 0, N(R) = 2. */ |
| 667 | [] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_RR(sapi, c_r:=cr_MT_RSP, p:=false, nr:=2))) { |
| 668 | repeat; |
| 669 | } |
| 670 | /* 6) The BTS shall repeat the I frame, this frame will acknowledge |
| 671 | receipt of the second I frame from the MS. */ |
| 672 | /* SAPI = 0, C = 0, P = 1, M = 0, 0 ≤ L ≤ N201, N(R) = 2, N(S) = 0. * */ |
| 673 | [] LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_I(sapi, c_r:=cr_MT_CMD, p:=true, |
| 674 | nr:=2, ns:=0, l3:=l3_mt))); |
| 675 | } |
| 676 | |
| 677 | /* 7) The MS then acknowledges receipt of the BTS I frame by sending a RR * frame. */ |
| 678 | /* SAPI = 0, R = 0, F = 1, 0, M = 0, L = 0, N(R) = 1 */ |
| 679 | LAPDM.send(t_PH_DATA(0, false, ts_LAPDm_RR(sapi, c_r:=cr_MO_RSP, p:=true, nr:=1))); |
| 680 | |
| 681 | /* 8) The BTS shall send the next I frame. The MS acknowledges this I frame. */ |
| 682 | l3_mt := f_rnd_octstring(16); |
| 683 | RSL.send(ts_RSL_DATA_REQ(g_chan_nr, link_id, l3_mt)); |
| 684 | /* SAPI = 0, C = 0, P = 0, M = 0, 0 ≤ L ≤ N201, N(R) = 2, N(S) = 1 */ |
| 685 | LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_I(sapi, c_r:=cr_MT_CMD, p:=false, |
| 686 | nr:=2, ns:=1, l3:=l3_mt))); |
| 687 | LAPDM.send(t_PH_DATA(0, false, ts_LAPDm_RR(sapi, c_r:=cr_MO_RSP, p:=true, nr:=2))); |
| 688 | |
| 689 | deactivate(d); |
| 690 | fp_common_fini(); |
| 691 | } |
| 692 | testcase TC_iframe_timer_recovery() runs on test_CT { |
| 693 | var ConnHdlrPars pars := valueof(t_Pars(t_RslChanNr_Bm(1), ts_RSL_ChanMode_SIGN)); |
| 694 | f_testmatrix_each_chan(pars, refers(f_TC_iframe_timer_recovery)); |
| 695 | } |
| 696 | |
Harald Welte | 9ea918c | 2019-06-01 11:46:25 +0200 | [diff] [blame^] | 697 | type record LapdmDlConfig { |
| 698 | integer n201, |
| 699 | integer t200 |
| 700 | }; |
| 701 | |
| 702 | type record LapdmDlState { |
| 703 | integer v_s, |
| 704 | integer v_a, |
| 705 | integer v_r |
| 706 | }; |
| 707 | |
| 708 | template (value) LapdmDlState t_init_LapdmDlState := { |
| 709 | v_s := 0, |
| 710 | v_a := 0, |
| 711 | v_r := 0 |
| 712 | } |
| 713 | |
| 714 | private function inc_mod8(inout integer v) |
| 715 | { |
| 716 | v := (v + 1) mod 8; |
| 717 | } |
| 718 | |
| 719 | private function f_lapdm_transceive_mo(inout LapdmDlState dls, RslLinkId link_id, octetstring l3) |
| 720 | runs on ConnHdlr { |
| 721 | var LAPDm_ph_data pd; |
| 722 | var integer offset := 0; |
| 723 | var integer n201 := 20; |
| 724 | var boolean is_sacch := false; |
| 725 | if (link_id.c == SACCH) { |
| 726 | n201 := 18; |
| 727 | is_sacch := true; |
| 728 | } |
| 729 | |
| 730 | while (offset < lengthof(l3)) { |
| 731 | var integer remain_len := lengthof(l3) - offset; |
| 732 | var integer seg_len := remain_len; |
| 733 | if (remain_len > n201) { |
| 734 | seg_len := n201; |
| 735 | } |
| 736 | var octetstring segment := substr(l3, offset, seg_len); |
| 737 | var boolean more; |
| 738 | if (offset + lengthof(segment) < lengthof(l3)) { |
| 739 | more := true; |
| 740 | } else { |
| 741 | more := false; |
| 742 | } |
| 743 | /* send the next segment */ |
| 744 | LAPDM.send(t_PH_DATA(0, is_sacch, |
| 745 | ts_LAPDm_I(link_id.sapi, c_r:=cr_MO_CMD, p:=false, |
| 746 | nr:=dls.v_a, ns:=dls.v_s, l3:=segment, m:=more))); |
| 747 | inc_mod8(dls.v_s); |
| 748 | offset := offset + lengthof(segment); |
| 749 | |
| 750 | /* wait for it to be acknowledged */ |
| 751 | alt { |
| 752 | [] LAPDM.receive(t_PH_DATA(0, is_sacch, tr_LAPDm_RR(link_id.sapi, c_r:=cr_MT_RSP, |
| 753 | p:=false, nr:=(dls.v_s) mod 8))); |
| 754 | [] as_ignore_background(); |
| 755 | [] LAPDM.receive(t_PH_DATA(0, is_sacch, ?)) -> value pd { |
| 756 | setverdict(fail, "received unexpected LAPDm ", pd); |
| 757 | repeat; |
| 758 | } |
| 759 | [] LAPDM.receive(t_PH_DATA(0, ?, ?)) { repeat; } |
| 760 | [offset < lengthof(l3)] RSL.receive(tr_RSL_DATA_IND(g_chan_nr, link_id, ?)) { |
| 761 | setverdict(fail, "received RSL DATA IND before message complete"); |
| 762 | } |
| 763 | } |
| 764 | } |
| 765 | |
| 766 | timer T := 1.0; |
| 767 | T.start; |
| 768 | alt { |
| 769 | [] RSL.receive(tr_RSL_DATA_IND(g_chan_nr, link_id, l3)) { |
| 770 | setverdict(pass); |
| 771 | } |
| 772 | [] RSL.receive(tr_RSL_DATA_IND(g_chan_nr, link_id, ?)) { |
| 773 | setverdict(fail, "Received RSL DATA IND with wrong payload"); |
| 774 | } |
| 775 | [] T.timeout { |
| 776 | setverdict(fail, "Timeout waiting for RSL DATA IND of de-segmented message"); |
| 777 | } |
| 778 | } |
| 779 | } |
| 780 | |
| 781 | /* Section 5.8.5 of TS 04.06 */ |
| 782 | const integer c_TS0406_MAX_L3_OCTETS := 251; |
| 783 | |
| 784 | private function f_TC_segm_concat(charstring id) runs on ConnHdlr { |
| 785 | const integer sapi := 0; |
| 786 | var RslLinkId link_id := valueof(ts_RslLinkID_DCCH(sapi)); |
| 787 | var default d; |
| 788 | timer T := 3.0; |
| 789 | |
| 790 | fp_common_init(); |
| 791 | |
| 792 | /* some common altstep for meas res and other background noise */ |
| 793 | d := activate(as_ignore_background()); |
| 794 | RSL.clear; |
| 795 | LAPDM.clear; |
| 796 | |
| 797 | var octetstring l3_mo := f_rnd_octstring(5); |
| 798 | |
| 799 | /* 1) The BTS is brought into the multiple frame established state */ |
| 800 | |
| 801 | /* MO Establish Request via LADPm: SAPI = 0, C = 0, P = 1, M = 0, 0 ≤ L ≤ N201.. */ |
| 802 | LAPDM.send(t_PH_DATA(0, false, ts_LAPDm_SABM(sapi, c_r:=cr_MO_CMD, p:=true, l3:=l3_mo))); |
| 803 | RSL.receive(tr_RSL_EST_IND(g_chan_nr, link_id, l3_mo)); |
| 804 | /* UA: SAPI = 0, R = 0, F = 1, M = 0, L = L of SABM. */ |
| 805 | LAPDM.receive(t_PH_DATA(0, false, tr_LAPDm_UA(sapi, cr_MT_RSP, f:=true, l3:=l3_mo))); |
| 806 | |
| 807 | l3_mo := f_rnd_octstring(c_TS0406_MAX_L3_OCTETS); |
| 808 | |
| 809 | deactivate(d); |
| 810 | |
| 811 | var LapdmDlState dls := valueof(t_init_LapdmDlState); |
| 812 | f_lapdm_transceive_mo(dls, link_id, l3_mo); |
| 813 | |
| 814 | fp_common_fini(); |
| 815 | } |
| 816 | testcase TC_segm_concat() runs on test_CT { |
| 817 | var ConnHdlrPars pars := valueof(t_Pars(t_RslChanNr_Bm(1), ts_RSL_ChanMode_SIGN)); |
| 818 | f_testmatrix_each_chan(pars, refers(f_TC_segm_concat)); |
| 819 | } |
Harald Welte | 2f2b2b7 | 2019-05-31 22:24:57 +0200 | [diff] [blame] | 820 | |
| 821 | |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 822 | control { |
| 823 | execute(TC_foo()); |
| 824 | execute(TC_sabm_ua_dcch_sapi0()); |
| 825 | execute(TC_sabm_ua_dcch_sapi0_nopayload()); |
| 826 | execute(TC_sabm_ua_dcch_sapi3()); |
| 827 | execute(TC_sabm_ua_dcch_sapi4()); |
| 828 | execute(TC_sabm_contention()); |
| 829 | execute(TC_sabm_retransmit()); |
Harald Welte | 2f2b2b7 | 2019-05-31 22:24:57 +0200 | [diff] [blame] | 830 | execute(TC_sabm_retransmit_bts()); |
| 831 | execute(TC_sabm_invalid_resp()); |
| 832 | execute(TC_sabm_dm()); |
| 833 | execute(TC_establish_ign_first_sabm()); |
| 834 | execute(TC_iframe_seq_and_ack()); |
| 835 | execute(TC_iframe_timer_recovery()); |
Harald Welte | 9ea918c | 2019-06-01 11:46:25 +0200 | [diff] [blame^] | 836 | execute(TC_segm_concat()); |
Harald Welte | 72c81e7 | 2019-05-30 16:36:11 +0200 | [diff] [blame] | 837 | } |
| 838 | |
Harald Welte | f654332 | 2017-07-16 07:35:10 +0200 | [diff] [blame] | 839 | } |