Harald Welte | a49e36e | 2018-01-21 19:29:33 +0100 | [diff] [blame] | 1 | module BSC_ConnectionHandler { |
| 2 | |
| 3 | import from General_Types all; |
| 4 | import from Osmocom_Types all; |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 5 | import from Native_Functions all; |
Harald Welte | a49e36e | 2018-01-21 19:29:33 +0100 | [diff] [blame] | 6 | import from GSM_Types all; |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 7 | import from IPL4asp_Types all; |
Harald Welte | a49e36e | 2018-01-21 19:29:33 +0100 | [diff] [blame] | 8 | import from SCCPasp_Types all; |
| 9 | import from BSSAP_Types all; |
| 10 | import from BSSMAP_Emulation all; |
| 11 | import from BSSMAP_Templates all; |
| 12 | |
| 13 | import from GSUP_Types all; |
| 14 | import from GSUP_Emulation all; |
| 15 | |
| 16 | import from MNCC_Types all; |
| 17 | import from MNCC_Emulation all; |
| 18 | |
Harald Welte | 4aa970c | 2018-01-26 10:38:09 +0100 | [diff] [blame] | 19 | import from MGCP_Types all; |
| 20 | import from MGCP_Emulation all; |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 21 | import from MGCP_Templates all; |
| 22 | import from SDP_Types all; |
Harald Welte | 4aa970c | 2018-01-26 10:38:09 +0100 | [diff] [blame] | 23 | |
Harald Welte | a49e36e | 2018-01-21 19:29:33 +0100 | [diff] [blame] | 24 | import from MobileL3_Types all; |
| 25 | import from MobileL3_CommonIE_Types all; |
| 26 | import from MobileL3_MM_Types all; |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 27 | import from MobileL3_CC_Types all; |
Harald Welte | a49e36e | 2018-01-21 19:29:33 +0100 | [diff] [blame] | 28 | import from L3_Templates all; |
| 29 | |
| 30 | /* this component represents a single subscriber connection */ |
Harald Welte | 4aa970c | 2018-01-26 10:38:09 +0100 | [diff] [blame] | 31 | type component BSC_ConnHdlr extends BSSAP_ConnHdlr, MNCC_ConnHdlr, GSUP_ConnHdlr, MGCP_ConnHdlr { |
Harald Welte | a49e36e | 2018-01-21 19:29:33 +0100 | [diff] [blame] | 32 | var BSC_ConnHdlrPars g_pars; |
Harald Welte | a10db90 | 2018-01-27 12:44:49 +0100 | [diff] [blame] | 33 | timer g_Tguard := 60.0; |
Harald Welte | a49e36e | 2018-01-21 19:29:33 +0100 | [diff] [blame] | 34 | } |
| 35 | |
Harald Welte | 148a708 | 2018-01-26 18:56:43 +0100 | [diff] [blame] | 36 | type record AuthVector { |
| 37 | OCT16 rand, |
| 38 | OCT4 sres, |
| 39 | OCT8 kc |
| 40 | /* FIXME: 3G elements */ |
| 41 | } |
| 42 | |
Harald Welte | de37149 | 2018-01-27 23:44:41 +0100 | [diff] [blame] | 43 | type record BSC_ConnHdlrNetworkPars { |
| 44 | OCT1 kc_support, |
| 45 | boolean expect_tmsi, |
| 46 | boolean expect_auth, |
| 47 | boolean expect_ciph |
| 48 | } |
| 49 | |
Harald Welte | a49e36e | 2018-01-21 19:29:33 +0100 | [diff] [blame] | 50 | type record BSC_ConnHdlrPars { |
| 51 | SCCP_PAR_Address sccp_addr_own, |
| 52 | SCCP_PAR_Address sccp_addr_peer, |
| 53 | BSSMAP_IE_CellIdentifier cell_id, |
Harald Welte | 256571e | 2018-01-24 18:47:19 +0100 | [diff] [blame] | 54 | hexstring imei, |
Harald Welte | a49e36e | 2018-01-21 19:29:33 +0100 | [diff] [blame] | 55 | hexstring imsi, |
Harald Welte | 8260057 | 2018-01-21 20:54:08 +0100 | [diff] [blame] | 56 | hexstring msisdn, |
Harald Welte | 256571e | 2018-01-24 18:47:19 +0100 | [diff] [blame] | 57 | OCT4 tmsi optional, |
Harald Welte | 9de8479 | 2018-01-28 01:06:35 +0100 | [diff] [blame] | 58 | MobileStationClassmark1_V cm1, |
Harald Welte | 8260057 | 2018-01-21 20:54:08 +0100 | [diff] [blame] | 59 | BSSMAP_IE_ClassmarkInformationType2 cm2, |
Harald Welte | 1611428 | 2018-01-24 22:41:21 +0100 | [diff] [blame] | 60 | BSSMAP_IE_ClassmarkInformationType3 cm3 optional, |
Harald Welte | de37149 | 2018-01-27 23:44:41 +0100 | [diff] [blame] | 61 | AuthVector vec optional, |
| 62 | BSC_ConnHdlrNetworkPars net |
Harald Welte | a49e36e | 2018-01-21 19:29:33 +0100 | [diff] [blame] | 63 | }; |
| 64 | |
Harald Welte | 9de8479 | 2018-01-28 01:06:35 +0100 | [diff] [blame] | 65 | /* get a one-octet bitmaks of supported algorithms based on Classmark information */ |
| 66 | function f_alg_mask_from_cm(BSSMAP_IE_ClassmarkInformationType2 cm2) return OCT1 { |
| 67 | var BIT8 res := '00000001'B; /* A5/0 always supported */ |
| 68 | |
| 69 | if (cm2.a5_1 == '0'B) { |
| 70 | res := res or4b '00000010'B; |
| 71 | } |
| 72 | if (cm2.classmarkInformationType2_oct5.a5_2 == '1'B ) { |
| 73 | res := res or4b '00000100'B; |
| 74 | } |
| 75 | if (cm2.classmarkInformationType2_oct5.a5_3 == '1'B) { |
| 76 | res := res or4b '00001000'B; |
| 77 | } |
| 78 | /* TODO: CM3 for A5/4 and beyond */ |
| 79 | return bit2oct(res); |
| 80 | } |
| 81 | |
| 82 | /* determine the best algorithm available within the bit-mask */ |
| 83 | function f_best_alg_from_mask(OCT1 alg_in) return OCT1 { |
| 84 | var BIT8 alg := oct2bit(alg_in); |
| 85 | var BIT8 ordered_algs[8] := { |
| 86 | '10000000'B, '01000000'B, '00100000'B, '00010000'B, |
| 87 | '00001000'B, /* A5/3 */ |
| 88 | '00000010'B, /* A5/1 */ |
| 89 | '00000100'B, /* A5/2 */ |
| 90 | '00000001'B /* A5/0 */ } |
| 91 | for (var integer i := 0; i < sizeof(ordered_algs); i := i+1) { |
| 92 | if (alg and4b ordered_algs[i] != '00000000'B) { |
| 93 | return bit2oct(ordered_algs[i]); |
| 94 | } |
| 95 | } |
| 96 | return '00'O; |
| 97 | } |
| 98 | |
| 99 | /* return an integer like '1' for A5/1 based on a mask (with only one bit set */ |
| 100 | function f_alg_from_mask(OCT1 mask_in) return integer { |
| 101 | var BIT8 mask := oct2bit(mask_in); |
| 102 | for (var integer i := 0; i < 8; i := i+1) { |
| 103 | if (mask and4b ('00000001'B << i) != '00000000'B) { |
| 104 | return i; |
| 105 | } |
| 106 | } |
| 107 | return -1; |
| 108 | } |
| 109 | |
Harald Welte | a10db90 | 2018-01-27 12:44:49 +0100 | [diff] [blame] | 110 | /* altstep for the global guard timer */ |
| 111 | private altstep as_Tguard() runs on BSC_ConnHdlr { |
| 112 | [] g_Tguard.timeout { |
| 113 | setverdict(inconc, "Tguard timeout"); |
| 114 | self.stop; |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | /* init function, called as first function in new BSC_ConnHdlr */ |
Harald Welte | ad2952e | 2018-01-27 14:12:46 +0100 | [diff] [blame] | 119 | function f_init_handler(BSC_ConnHdlrPars pars, float t_guard := 60.0) runs on BSC_ConnHdlr { |
Harald Welte | a10db90 | 2018-01-27 12:44:49 +0100 | [diff] [blame] | 120 | /* make parameters available via component variable */ |
| 121 | g_pars := pars; |
| 122 | /* Start guard timer and activate it as default */ |
Harald Welte | ad2952e | 2018-01-27 14:12:46 +0100 | [diff] [blame] | 123 | g_Tguard.start(t_guard); |
Harald Welte | a10db90 | 2018-01-27 12:44:49 +0100 | [diff] [blame] | 124 | activate(as_Tguard()); |
| 125 | } |
| 126 | |
Harald Welte | a49e36e | 2018-01-21 19:29:33 +0100 | [diff] [blame] | 127 | |
| 128 | /* Callback function from general BSSMAP_Emulation whenever a connectionless |
| 129 | * BSSMAP message arrives. Canreturn a PDU_BSSAPthat should be sent in return */ |
| 130 | private function BscUnitdataCallback(PDU_BSSAP bssap) |
| 131 | runs on BSSMAP_Emulation_CT return template PDU_BSSAP { |
| 132 | var template PDU_BSSAP resp := omit; |
| 133 | |
| 134 | log("BSSMAP_BscUnitdataCallback"); |
| 135 | /* answer all RESET with RESET ACK */ |
| 136 | if (match(bssap, tr_BSSMAP_Reset)){ |
| 137 | log("BSSMAP_BscUnitdataCallback: Responding to RESET with RESET-ACK"); |
| 138 | resp := ts_BSSMAP_ResetAck; |
| 139 | } |
| 140 | |
| 141 | /* FIXME: Handle paging, etc. */ |
| 142 | return resp; |
| 143 | } |
| 144 | |
| 145 | const BssmapOps BSC_BssmapOps := { |
| 146 | /* Create call-back for inbound connections from MSC (hand-over) */ |
| 147 | create_cb := refers(BSSMAP_Emulation.ExpectedCreateCallback), |
| 148 | unitdata_cb := refers(BscUnitdataCallback), |
| 149 | decode_dtap := true, |
| 150 | role_ms := true |
| 151 | } |
| 152 | |
| 153 | |
| 154 | private function MnccUnitdataCallback(MNCC_PDU mncc) |
| 155 | runs on MNCC_Emulation_CT return template MNCC_PDU { |
| 156 | log("Ignoring MNCC", mncc); |
| 157 | return omit; |
| 158 | } |
| 159 | |
| 160 | const MnccOps BCC_MnccOps := { |
| 161 | create_cb := refers(MNCC_Emulation.ExpectedCreateCallback), |
| 162 | unitdata_cb := refers(MnccUnitdataCallback) |
| 163 | } |
| 164 | |
| 165 | |
| 166 | |
| 167 | template BSSAP_Conn_Req ts_BSSAP_Conn_Req(SCCP_PAR_Address peer, SCCP_PAR_Address own, PDU_BSSAP bssap) := { |
| 168 | addr_peer := peer, |
| 169 | addr_own := own, |
| 170 | bssap := bssap |
| 171 | }; |
| 172 | |
Harald Welte | a49e36e | 2018-01-21 19:29:33 +0100 | [diff] [blame] | 173 | /* Encode 'l3' and ask BSSMAP_Emulation to create new connection with COMPL L3 INFO */ |
| 174 | function f_bssap_compl_l3(PDU_ML3_MS_NW l3) |
| 175 | runs on BSC_ConnHdlr { |
| 176 | log("Sending COMPL L3: ", l3); |
| 177 | var octetstring l3_enc := enc_PDU_ML3_MS_NW(l3); |
| 178 | BSSAP.send(ts_BSSAP_Conn_Req(g_pars.sccp_addr_peer, g_pars.sccp_addr_own, |
| 179 | valueof(ts_BSSMAP_ComplL3(g_pars.cell_id, l3_enc)))); |
Harald Welte | 71b6933 | 2018-01-21 20:43:53 +0100 | [diff] [blame] | 180 | alt { |
| 181 | [] BSSAP.receive(BSSAP_Conn_Prim:MSC_CONN_PRIM_CONF_IND) {} |
| 182 | [] BSSAP.receive(BSSAP_Conn_Prim:MSC_CONN_PRIM_DISC_IND) { |
| 183 | setverdict(fail, "DISC.ind from SCCP"); |
| 184 | self.stop; |
| 185 | } |
| 186 | } |
Harald Welte | a49e36e | 2018-01-21 19:29:33 +0100 | [diff] [blame] | 187 | } |
| 188 | |
Harald Welte | 081b19a | 2018-02-10 09:11:13 +0100 | [diff] [blame] | 189 | type enumerated EstablishType { |
| 190 | EST_TYPE_MO_CALL, |
Harald Welte | 0bef21e | 2018-02-10 09:48:23 +0100 | [diff] [blame] | 191 | EST_TYPE_EMERG_CALL, |
Harald Welte | 081b19a | 2018-02-10 09:11:13 +0100 | [diff] [blame] | 192 | EST_TYPE_PAG_RESP |
| 193 | }; |
| 194 | |
Harald Welte | a49e36e | 2018-01-21 19:29:33 +0100 | [diff] [blame] | 195 | /* helper function to fully establish a dedicated channel */ |
Harald Welte | 081b19a | 2018-02-10 09:11:13 +0100 | [diff] [blame] | 196 | function f_establish_fully(MobileIdentityLV mi, EstablishType etype := EST_TYPE_MO_CALL) |
Harald Welte | a49e36e | 2018-01-21 19:29:33 +0100 | [diff] [blame] | 197 | runs on BSC_ConnHdlr { |
Harald Welte | 081b19a | 2018-02-10 09:11:13 +0100 | [diff] [blame] | 198 | var PDU_ML3_MS_NW l3_info; |
| 199 | select (etype) { |
| 200 | case (EST_TYPE_MO_CALL) { |
| 201 | l3_info := valueof(ts_CM_SERV_REQ(CM_TYPE_MO_CALL, mi)); |
| 202 | } |
Harald Welte | 0bef21e | 2018-02-10 09:48:23 +0100 | [diff] [blame] | 203 | case (EST_TYPE_EMERG_CALL) { |
| 204 | l3_info := valueof(ts_CM_SERV_REQ(CM_TYPE_EMERG_CALL, mi)); |
| 205 | } |
Harald Welte | 081b19a | 2018-02-10 09:11:13 +0100 | [diff] [blame] | 206 | case (EST_TYPE_PAG_RESP) { |
| 207 | l3_info := valueof(ts_PAG_RESP(mi)); |
| 208 | } |
| 209 | } |
Harald Welte | a49e36e | 2018-01-21 19:29:33 +0100 | [diff] [blame] | 210 | |
| 211 | /* Send BSSAP_Conn_Req with COMPL L3 INFO to MSC */ |
| 212 | f_bssap_compl_l3(l3_info); |
| 213 | |
Harald Welte | de37149 | 2018-01-27 23:44:41 +0100 | [diff] [blame] | 214 | f_mm_common(); |
| 215 | if (g_pars.net.expect_ciph) { |
Harald Welte | 148a708 | 2018-01-26 18:56:43 +0100 | [diff] [blame] | 216 | /* implicit CM SERVICE ACCEPT? */ |
| 217 | } else { |
Harald Welte | 0bef21e | 2018-02-10 09:48:23 +0100 | [diff] [blame] | 218 | if (etype != EST_TYPE_PAG_RESP) { |
Harald Welte | 081b19a | 2018-02-10 09:11:13 +0100 | [diff] [blame] | 219 | /* explicit CM SERVICE ACCEPT */ |
| 220 | BSSAP.receive(tr_PDU_DTAP_MT(tr_CM_SERV_ACC)); |
| 221 | } |
Harald Welte | a49e36e | 2018-01-21 19:29:33 +0100 | [diff] [blame] | 222 | } |
Harald Welte | a49e36e | 2018-01-21 19:29:33 +0100 | [diff] [blame] | 223 | } |
| 224 | |
| 225 | /* build a PDU_ML3_MS_NW containing a Location Update by IMSI */ |
Harald Welte | 9de8479 | 2018-01-28 01:06:35 +0100 | [diff] [blame] | 226 | function f_build_lu_imsi(hexstring imsi) runs on BSC_ConnHdlr return PDU_ML3_MS_NW |
Harald Welte | a49e36e | 2018-01-21 19:29:33 +0100 | [diff] [blame] | 227 | { |
| 228 | var MobileIdentityLV mi := valueof(ts_MI_IMSI_LV(imsi)); |
| 229 | return f_build_lu(mi); |
| 230 | } |
Harald Welte | 9de8479 | 2018-01-28 01:06:35 +0100 | [diff] [blame] | 231 | function f_build_lu_imei(hexstring imei) runs on BSC_ConnHdlr return PDU_ML3_MS_NW |
Harald Welte | ba7b6d9 | 2018-01-23 21:32:34 +0100 | [diff] [blame] | 232 | { |
| 233 | var MobileIdentityLV mi := valueof(ts_MI_IMEI_LV(imei)); |
| 234 | return f_build_lu(mi); |
| 235 | } |
Harald Welte | 9de8479 | 2018-01-28 01:06:35 +0100 | [diff] [blame] | 236 | function f_build_lu_tmsi(OCT4 tmsi) runs on BSC_ConnHdlr return PDU_ML3_MS_NW |
Harald Welte | ba7b6d9 | 2018-01-23 21:32:34 +0100 | [diff] [blame] | 237 | { |
| 238 | var MobileIdentityLV mi := valueof(ts_MI_TMSI_LV(tmsi)); |
| 239 | return f_build_lu(mi); |
| 240 | } |
Harald Welte | 9de8479 | 2018-01-28 01:06:35 +0100 | [diff] [blame] | 241 | private function f_build_lu(MobileIdentityLV mi) runs on BSC_ConnHdlr return PDU_ML3_MS_NW |
Harald Welte | a49e36e | 2018-01-21 19:29:33 +0100 | [diff] [blame] | 242 | { |
| 243 | var LocationAreaIdentification_V old_lai := { '62F220'O, '9999'O }; |
| 244 | var PDU_ML3_MS_NW l3_info := valueof(ts_ML3_MO_LU_Req(valueof(ts_ML3_IE_LuType_Attach), |
Harald Welte | 9de8479 | 2018-01-28 01:06:35 +0100 | [diff] [blame] | 245 | old_lai, mi, g_pars.cm1)); |
Harald Welte | a49e36e | 2018-01-21 19:29:33 +0100 | [diff] [blame] | 246 | return l3_info; |
| 247 | } |
| 248 | |
Harald Welte | cf66d5a | 2018-01-23 19:24:28 +0100 | [diff] [blame] | 249 | private function f_rnd_oct(integer len) return octetstring { |
| 250 | var integer i; |
| 251 | var octetstring res; |
| 252 | for (i := 0; i < len; i := i + 1) { |
| 253 | res[i] := int2oct(float2int(rnd()*256.0), 1); |
| 254 | } |
| 255 | return res; |
| 256 | } |
| 257 | |
| 258 | function f_gen_auth_vec_2g() return AuthVector { |
| 259 | var AuthVector vec; |
| 260 | vec.rand := f_rnd_oct(16); |
| 261 | vec.sres := f_rnd_oct(4); |
| 262 | vec.kc := f_rnd_oct(8); |
| 263 | return vec; |
| 264 | } |
| 265 | |
Harald Welte | 148a708 | 2018-01-26 18:56:43 +0100 | [diff] [blame] | 266 | |
Harald Welte | 9de8479 | 2018-01-28 01:06:35 +0100 | [diff] [blame] | 267 | function f_mm_auth() runs on BSC_ConnHdlr |
Harald Welte | 148a708 | 2018-01-26 18:56:43 +0100 | [diff] [blame] | 268 | { |
Harald Welte | de37149 | 2018-01-27 23:44:41 +0100 | [diff] [blame] | 269 | if (g_pars.net.expect_auth) { |
Harald Welte | 148a708 | 2018-01-26 18:56:43 +0100 | [diff] [blame] | 270 | g_pars.vec := f_gen_auth_vec_2g(); |
| 271 | var GSUP_IE auth_tuple := valueof(ts_GSUP_IE_AuthTuple2G(g_pars.vec.rand, |
| 272 | g_pars.vec.sres, |
| 273 | g_pars.vec.kc)); |
| 274 | GSUP.receive(tr_GSUP_SAI_REQ(g_pars.imsi)); |
| 275 | GSUP.send(ts_GSUP_SAI_RES(g_pars.imsi, auth_tuple)); |
| 276 | |
| 277 | BSSAP.receive(tr_PDU_DTAP_MT(tr_ML3_MT_MM_AUTH_REQ(g_pars.vec.rand))); |
| 278 | BSSAP.send(ts_PDU_DTAP_MO(ts_ML3_MT_MM_AUTH_RESP_2G(g_pars.vec.sres))); |
| 279 | } |
Harald Welte | 9de8479 | 2018-01-28 01:06:35 +0100 | [diff] [blame] | 280 | } |
Harald Welte | 148a708 | 2018-01-26 18:56:43 +0100 | [diff] [blame] | 281 | |
Harald Welte | 9de8479 | 2018-01-28 01:06:35 +0100 | [diff] [blame] | 282 | function f_mm_common() runs on BSC_ConnHdlr |
| 283 | { |
| 284 | f_mm_auth(); |
Harald Welte | de37149 | 2018-01-27 23:44:41 +0100 | [diff] [blame] | 285 | if (g_pars.net.expect_ciph) { |
Harald Welte | 9de8479 | 2018-01-28 01:06:35 +0100 | [diff] [blame] | 286 | var OCT1 a5_net := f_alg_mask_from_cm(g_pars.cm2); |
| 287 | var OCT1 a5_intersect := g_pars.net.kc_support and4b a5_net; |
| 288 | alt { |
| 289 | [] BSSAP.receive(tr_BSSMAP_CipherModeCmd(a5_intersect, g_pars.vec.kc)) { |
| 290 | var OCT1 a5_chosen := f_best_alg_from_mask(a5_intersect); |
| 291 | var integer a5_nr := f_alg_from_mask(a5_chosen); |
| 292 | BSSAP.send(ts_BSSMAP_CipherModeCompl(int2oct(a5_nr+1, 1))); |
| 293 | } |
| 294 | [] BSSAP.receive(tr_BSSMAP_CipherModeCmd(?, g_pars.vec.kc)) { |
| 295 | setverdict(fail, "Wrong ciphering algorithm mask in CiphModCmd"); |
| 296 | self.stop; |
| 297 | } |
| 298 | } |
| 299 | /* FIXME: Send the best available algorithm */ |
Harald Welte | 148a708 | 2018-01-26 18:56:43 +0100 | [diff] [blame] | 300 | } |
| 301 | } |
| 302 | |
Harald Welte | de37149 | 2018-01-27 23:44:41 +0100 | [diff] [blame] | 303 | function f_perform_lu(boolean send_early_cm) |
Harald Welte | a49e36e | 2018-01-21 19:29:33 +0100 | [diff] [blame] | 304 | runs on BSC_ConnHdlr { |
| 305 | var PDU_ML3_MS_NW l3_lu := f_build_lu_imsi(g_pars.imsi) |
| 306 | var PDU_DTAP_MT dtap_mt; |
| 307 | |
| 308 | /* tell GSUP dispatcher to send this IMSI to us */ |
| 309 | f_create_gsup_expect(hex2str(g_pars.imsi)); |
| 310 | |
| 311 | /* Send BSSAP_Conn_Req with COMPL L3 INFO to MSC */ |
| 312 | f_bssap_compl_l3(l3_lu); |
| 313 | |
Harald Welte | 8a121b3 | 2018-01-22 03:00:41 +0100 | [diff] [blame] | 314 | if (send_early_cm) { |
| 315 | BSSAP.send(ts_BSSMAP_ClassmarkUpd(g_pars.cm2, g_pars.cm3)); |
| 316 | } |
Harald Welte | 5c2622c | 2018-01-21 20:45:20 +0100 | [diff] [blame] | 317 | |
Harald Welte | de37149 | 2018-01-27 23:44:41 +0100 | [diff] [blame] | 318 | f_mm_common(); |
Harald Welte | 1611428 | 2018-01-24 22:41:21 +0100 | [diff] [blame] | 319 | |
Harald Welte | a49e36e | 2018-01-21 19:29:33 +0100 | [diff] [blame] | 320 | /* Expect MSC to perform LU with HLR */ |
| 321 | GSUP.receive(tr_GSUP_UL_REQ(g_pars.imsi)); |
| 322 | GSUP.send(ts_GSUP_ISD_REQ(g_pars.imsi, g_pars.msisdn)); |
| 323 | GSUP.receive(tr_GSUP_ISD_RES(g_pars.imsi)); |
| 324 | GSUP.send(ts_GSUP_UL_RES(g_pars.imsi)); |
| 325 | |
| 326 | alt { |
| 327 | [] BSSAP.receive(tr_PDU_DTAP_MT(tr_ML3_MT_LU_Acc)) -> value dtap_mt { |
| 328 | var PDU_ML3_LocationUpdateAccept lu_acc := dtap_mt.dtap.msgs.mm.locationUpdateAccept; |
Harald Welte | de37149 | 2018-01-27 23:44:41 +0100 | [diff] [blame] | 329 | if (g_pars.net.expect_tmsi) { |
Harald Welte | a49e36e | 2018-01-21 19:29:33 +0100 | [diff] [blame] | 330 | if (not ispresent(lu_acc.mobileIdentityTLV) or |
| 331 | not ischosen(lu_acc.mobileIdentityTLV.mobileIdentityLV.mobileIdentityV.oddEvenInd_identity.tmsi_ptmsi)) { |
| 332 | setverdict(fail, "Expected TMSI but no TMSI was allocated"); |
| 333 | self.stop; |
| 334 | } else { |
Harald Welte | 256571e | 2018-01-24 18:47:19 +0100 | [diff] [blame] | 335 | g_pars.tmsi := lu_acc.mobileIdentityTLV.mobileIdentityLV.mobileIdentityV.oddEvenInd_identity.tmsi_ptmsi.octets; |
Harald Welte | a49e36e | 2018-01-21 19:29:33 +0100 | [diff] [blame] | 336 | BSSAP.send(ts_PDU_DTAP_MO(ts_ML3_MO_TmsiRealloc_Cmpl)); |
| 337 | } |
| 338 | } else { |
| 339 | if (ispresent(lu_acc.mobileIdentityTLV) and |
| 340 | ischosen(lu_acc.mobileIdentityTLV.mobileIdentityLV.mobileIdentityV.oddEvenInd_identity.tmsi_ptmsi)) { |
| 341 | setverdict(fail, "Expected no TMSI but TMSI was allocated"); |
| 342 | self.stop; |
| 343 | } |
| 344 | } |
| 345 | } |
| 346 | [] BSSAP.receive(tr_PDU_DTAP_MT(tr_ML3_MT_LU_Rej)) { |
| 347 | setverdict(fail, "Expected LU ACK, but received LU REJ"); |
| 348 | self.stop; |
| 349 | } |
| 350 | } |
| 351 | /* FIXME: there could be pending SMS or other common procedures by the MSC, let's ignore them */ |
| 352 | BSSAP.receive(tr_BSSMAP_ClearCommand); |
| 353 | BSSAP.send(ts_BSSMAP_ClearComplete); |
| 354 | BSSAP.receive(BSSAP_Conn_Prim:MSC_CONN_PRIM_DISC_IND); |
| 355 | setverdict(pass); |
| 356 | } |
| 357 | |
| 358 | function f_foo() runs on BSC_ConnHdlr{ |
| 359 | /* SCCP CC handled by BSSMAP_Emulation_CT.main() */ |
| 360 | /* Expect auth, if enabled */ |
| 361 | |
| 362 | /* TODO: ISD */ |
| 363 | /* Expect encr, if enabled */ |
| 364 | /* Expect encr, if enabled */ |
| 365 | /* Expect ASS CMD, if chan_type != requested */ |
| 366 | /* Send ASS CMPL in successful case */ |
| 367 | |
| 368 | /* Expect AoIP port/ip information for RTP stream */ |
| 369 | /* Expect MSC-originated MGCP to our simulated MGW */ |
| 370 | /* Verify Counters via CTRL */ |
| 371 | /* re-configure MSC behaviour via VTY */ |
| 372 | } |
| 373 | |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 374 | /* parameters related to a (MO?) voice call */ |
| 375 | type record CallParameters { |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 376 | /* CC related parameters */ |
| 377 | hexstring called_party, /* whom are we calling */ |
| 378 | integer transaction_id optional, /* which TS 04.08 CC transaction ID to use */ |
| 379 | BearerCapability_TLV bearer_cap, /* which bearer capabilities to claim */ |
Harald Welte | 0bef21e | 2018-02-10 09:48:23 +0100 | [diff] [blame] | 380 | boolean emergency, /* is this an emergency call? */ |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 381 | |
| 382 | /* MNCC related parameters */ |
| 383 | uint32_t mncc_callref optional, /* call reference on the MNCC side */ |
| 384 | MNCC_bearer_cap mncc_bearer_cap optional, /* MNCC-side bearer capabilities */ |
| 385 | |
| 386 | /* RTP related parameters */ |
| 387 | HostName bss_rtp_ip optional, /* BSS Side RTP IP */ |
| 388 | PortNumber bss_rtp_port optional, /* BSS Side RTP Port */ |
| 389 | HostName mss_rtp_ip optional, /* MSS Side RTP IP */ |
| 390 | PortNumber mss_rtp_port optional, /* MSS Side RTP Port */ |
Harald Welte | 4017d55 | 2018-01-26 21:40:05 +0100 | [diff] [blame] | 391 | HostName mgw_rtp_ip_bss, /* BSS-facing MGW RTP IP */ |
| 392 | PortNumber mgw_rtp_port_bss, /* BSS-facing MGW RTP Port */ |
| 393 | HostName mgw_rtp_ip_mss, /* MSS-facing MGW RTP IP */ |
| 394 | PortNumber mgw_rtp_port_mss, /* MSS-facing MGW RTP Port */ |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 395 | uint7_t rtp_payload_type, /* dynamic RTP payload type */ |
| 396 | charstring rtp_sdp_format, /* AMR/8000 or the like */ |
| 397 | |
| 398 | MgcpCallId mgcp_call_id optional, /* MGCP Call ID; CallAgent allocated */ |
| 399 | MgcpEndpoint mgcp_ep optional /* MGCP Endpoint, CallAgent or MGW allocated */, |
| 400 | MgcpConnectionId mgcp_connection_id_bss, /* MGCP Connection ID BSS Side */ |
| 401 | MgcpConnectionId mgcp_connection_id_mss /* MGCP Connection ID MSS Side */ |
| 402 | } |
| 403 | |
| 404 | template (value) CallParameters t_CallParams(hexstring called, integer tid) := { |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 405 | called_party := called, |
| 406 | transaction_id := tid, |
| 407 | bearer_cap := valueof(ts_Bcap_voice), |
Harald Welte | 0bef21e | 2018-02-10 09:48:23 +0100 | [diff] [blame] | 408 | emergency := false, |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 409 | mncc_callref := omit, |
| 410 | mncc_bearer_cap := valueof(ts_MNCC_bcap_voice), |
Harald Welte | 4017d55 | 2018-01-26 21:40:05 +0100 | [diff] [blame] | 411 | bss_rtp_ip := "9.8.7.6", |
| 412 | bss_rtp_port := 9000, |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 413 | mss_rtp_ip := omit, |
| 414 | mss_rtp_port := omit, |
Harald Welte | 4017d55 | 2018-01-26 21:40:05 +0100 | [diff] [blame] | 415 | mgw_rtp_ip_bss := "1.1.1.1", |
| 416 | mgw_rtp_port_bss := 10000, |
| 417 | mgw_rtp_ip_mss := "1.1.1.1", |
| 418 | mgw_rtp_port_mss := 11000, |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 419 | rtp_payload_type := 98, |
| 420 | rtp_sdp_format := "AMR/8000", |
| 421 | mgcp_call_id := omit, |
| 422 | mgcp_ep := omit, |
| 423 | mgcp_connection_id_bss := '0'H,// |
| 424 | mgcp_connection_id_mss := '0'H // |
| 425 | }; |
| 426 | |
| 427 | |
Harald Welte | 33ec09b | 2018-02-10 15:34:46 +0100 | [diff] [blame^] | 428 | function f_mt_call(inout CallParameters cpars) |
| 429 | runs on BSC_ConnHdlr { |
| 430 | |
| 431 | var MobileIdentityLV mi; |
| 432 | var MNCC_PDU mncc; |
| 433 | var MgcpCommand mgcp_cmd; |
| 434 | |
| 435 | f_bssmap_register_imsi(g_pars.imsi, g_pars.tmsi); |
| 436 | |
| 437 | /* Allocate a call reference and send SETUP via MNCC to MSC */ |
| 438 | cpars.mncc_callref := f_rnd_int(2147483648); |
| 439 | MNCC.send(ts_MNCC_SETUP_req(cpars.mncc_callref, hex2str(g_pars.msisdn), |
| 440 | hex2str(cpars.called_party), hex2str(g_pars.imsi))); |
| 441 | /* BSC <- MSC: Expect paging. FIXME: By TMSI or not? */ |
| 442 | BSSAP.receive(tr_BSSMAP_Paging(g_pars.imsi)); |
| 443 | |
| 444 | /* If we have a TMSI, use TMSI instead of IMSI */ |
| 445 | if (ispresent(g_pars.tmsi)) { |
| 446 | mi := valueof(ts_MI_TMSI_LV(g_pars.tmsi)); |
| 447 | } else { |
| 448 | mi := valueof(ts_MI_IMSI_LV(g_pars.imsi)); |
| 449 | } |
| 450 | f_establish_fully(mi, EST_TYPE_PAG_RESP); |
| 451 | |
| 452 | /* MS <- MSC: Expect CC SETUP */ |
| 453 | BSSAP.receive(tr_PDU_DTAP_MT(tr_ML3_MT_CC_SETUP(cpars.transaction_id, *, cpars.called_party))); |
| 454 | |
| 455 | /* MS -> MSC: ALERTING */ |
| 456 | BSSAP.send(ts_PDU_DTAP_MO(ts_ML3_MO_CC_ALERTING(cpars.transaction_id))); |
| 457 | MNCC.receive(tr_MNCC_ALERT_ind(cpars.mncc_callref)); |
| 458 | |
| 459 | |
| 460 | /* Create MGCP expect */ |
| 461 | f_create_mgcp_expect(ExpectCriteria:{omit,omit,omit}); |
| 462 | /* Ask MSC via MNCC to create the RTP socket on the MSC/MGW side */ |
| 463 | MNCC.send(ts_MNCC_RTP_CREATE(cpars.mncc_callref)); |
| 464 | |
| 465 | /* First MGCP CRCX (for BSS/RAN side) */ |
| 466 | MGCP.receive(tr_CRCX) -> value mgcp_cmd { |
| 467 | cpars.mgcp_call_id := f_MgcpCmd_extract_call_id(mgcp_cmd); |
| 468 | /* TODO: dynamic EP allocation case */ |
| 469 | cpars.mgcp_ep := mgcp_cmd.line.ep; |
| 470 | var SDP_Message sdp := valueof(ts_SDP(cpars.mgw_rtp_ip_bss, cpars.mgw_rtp_ip_bss, |
| 471 | hex2str(cpars.mgcp_call_id), "42", |
| 472 | cpars.mgw_rtp_port_bss, |
| 473 | { int2str(cpars.rtp_payload_type) }, |
| 474 | { valueof(ts_SDP_rtpmap(cpars.rtp_payload_type, |
| 475 | cpars.rtp_sdp_format)), |
| 476 | valueof(ts_SDP_ptime(20)) })); |
| 477 | MGCP.send(ts_CRCX_ACK(mgcp_cmd.line.trans_id, cpars.mgcp_connection_id_bss, sdp)); |
| 478 | } |
| 479 | /* Second MGCP CRCX (this time for MSS/CN side) */ |
| 480 | MGCP.receive(tr_CRCX(cpars.mgcp_ep)) -> value mgcp_cmd { |
| 481 | var SDP_Message sdp := valueof(ts_SDP(cpars.mgw_rtp_ip_mss, cpars.mgw_rtp_ip_mss, |
| 482 | hex2str(cpars.mgcp_call_id), "42", |
| 483 | cpars.mgw_rtp_port_mss, |
| 484 | { int2str(cpars.rtp_payload_type) }, |
| 485 | { valueof(ts_SDP_rtpmap(cpars.rtp_payload_type, |
| 486 | cpars.rtp_sdp_format)), |
| 487 | valueof(ts_SDP_ptime(20)) })); |
| 488 | MGCP.send(ts_CRCX_ACK(mgcp_cmd.line.trans_id, cpars.mgcp_connection_id_mss, sdp)); |
| 489 | /* MSC acknowledges the MNCC_CREATE to the MNCC handler */ |
| 490 | MNCC.receive(tr_MNCC_RTP_CREATE(cpars.mncc_callref)); |
| 491 | } |
| 492 | |
| 493 | /* expect the MSC to trigger a BSSMAP ASSIGNMENT */ |
| 494 | var BSSMAP_IE_AoIP_TransportLayerAddress tla_ass := |
| 495 | valueof(ts_BSSMAP_IE_AoIP_TLA4(f_inet_addr(cpars.mgw_rtp_ip_bss),cpars.mgw_rtp_port_bss)); |
| 496 | BSSAP.receive(tr_BSSMAP_AssignmentReq(omit, tla_ass)) { |
| 497 | var BSSMAP_IE_AoIP_TransportLayerAddress tla; |
| 498 | tla := valueof(ts_BSSMAP_IE_AoIP_TLA4(f_inet_addr(cpars.bss_rtp_ip), cpars.bss_rtp_port)); |
| 499 | BSSAP.send(ts_BSSMAP_AssignmentComplete(omit, tla)); |
| 500 | } |
| 501 | |
| 502 | /* MS -> MSC: ALERTING */ |
| 503 | BSSAP.send(ts_PDU_DTAP_MO(ts_ML3_MO_CC_CONNECT(cpars.transaction_id))); |
| 504 | MNCC.receive(tr_MNCC_SETUP_cnf(cpars.mncc_callref)); |
| 505 | |
| 506 | /* FIXME */ |
| 507 | f_sleep(3.0); |
| 508 | |
| 509 | /* Hangup by "A" side */ |
| 510 | MNCC.send(ts_MNCC_DISC_req(cpars.mncc_callref, valueof(ts_MNCC_cause(23)))); |
| 511 | BSSAP.receive(tr_PDU_DTAP_MT(tr_ML3_MT_CC_DISC(cpars.transaction_id))); |
| 512 | |
| 513 | if (false) { |
| 514 | /* A-side (PLMN) Release of call */ |
| 515 | MNCC.send(ts_MNCC_REL_req(cpars.mncc_callref, valueof(ts_MNCC_cause(42)))); |
| 516 | BSSAP.receive(tr_PDU_DTAP_MT(tr_ML3_MT_CC_RELEASE(cpars.transaction_id))); |
| 517 | BSSAP.send(ts_PDU_DTAP_MO(ts_ML3_MO_CC_REL_COMPL(cpars.transaction_id))); |
| 518 | } else { |
| 519 | /* B-side (MS) Release of call */ |
| 520 | BSSAP.send(ts_PDU_DTAP_MO(ts_ML3_MO_CC_RELEASE(cpars.transaction_id, '1'B, '0000000'B))); |
| 521 | MNCC.receive(tr_MNCC_REL_ind(cpars.mncc_callref)); |
| 522 | BSSAP.receive(tr_PDU_DTAP_MT(tr_ML3_MT_CC_REL_COMPL(cpars.transaction_id))); |
| 523 | } |
| 524 | |
| 525 | /* clearing of radio channel */ |
| 526 | interleave { |
| 527 | [] BSSAP.receive(tr_BSSMAP_ClearCommand) { |
| 528 | BSSAP.send(ts_BSSMAP_ClearComplete); |
| 529 | BSSAP.receive(BSSAP_Conn_Prim:MSC_CONN_PRIM_DISC_IND); |
| 530 | } |
| 531 | [] MGCP.receive(tr_DLCX(?)) -> value mgcp_cmd { |
| 532 | /* TODO: For one or all connections on EP? */ |
| 533 | MGCP.send(ts_DLCX_ACK2(mgcp_cmd.line.trans_id)); |
| 534 | f_create_mgcp_delete_ep(cpars.mgcp_ep); |
| 535 | } |
| 536 | } |
| 537 | setverdict(pass); |
| 538 | } |
| 539 | |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 540 | function f_mo_call(inout CallParameters cpars) |
| 541 | runs on BSC_ConnHdlr { |
| 542 | |
| 543 | var MobileIdentityLV mi; |
| 544 | var MNCC_PDU mncc; |
| 545 | var MgcpCommand mgcp_cmd; |
| 546 | |
| 547 | /* If we have a TMSI, use TMSI instead of IMSI */ |
| 548 | if (ispresent(g_pars.tmsi)) { |
| 549 | mi := valueof(ts_MI_TMSI_LV(g_pars.tmsi)); |
| 550 | } else { |
| 551 | mi := valueof(ts_MI_IMSI_LV(g_pars.imsi)); |
| 552 | } |
Harald Welte | 0bef21e | 2018-02-10 09:48:23 +0100 | [diff] [blame] | 553 | if (cpars.emergency) { |
| 554 | f_establish_fully(mi, EST_TYPE_EMERG_CALL); |
| 555 | } else { |
| 556 | f_establish_fully(mi, EST_TYPE_MO_CALL); |
| 557 | } |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 558 | |
| 559 | /* Create MNCC and MGCP expect */ |
| 560 | f_create_mncc_expect(hex2str(cpars.called_party)); |
| 561 | f_create_mgcp_expect(ExpectCriteria:{omit,omit,omit}); |
| 562 | |
Harald Welte | 0bef21e | 2018-02-10 09:48:23 +0100 | [diff] [blame] | 563 | if (cpars.emergency) { |
| 564 | BSSAP.send(ts_PDU_DTAP_MO(ts_ML3_MO_CC_EMERG_SETUP(cpars.transaction_id))); |
| 565 | } else { |
| 566 | BSSAP.send(ts_PDU_DTAP_MO(ts_ML3_MO_CC_SETUP(cpars.transaction_id, cpars.called_party))); |
| 567 | } |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 568 | interleave { |
| 569 | [] MNCC.receive(tr_MNCC_SETUP_ind(?, tr_MNCC_number(hex2str(cpars.called_party)))) -> value mncc { |
| 570 | cpars.mncc_callref := mncc.u.signal.callref; |
| 571 | /* Call Proceeding */ |
| 572 | MNCC.send(ts_MNCC_CALL_PROC_req(cpars.mncc_callref, cpars.mncc_bearer_cap)); |
| 573 | BSSAP.receive(tr_PDU_DTAP_MT(tr_ML3_MT_CC_CALL_PROC(cpars.transaction_id))); |
| 574 | }; |
Harald Welte | 4017d55 | 2018-01-26 21:40:05 +0100 | [diff] [blame] | 575 | /* First MGCP CRCX (for BSS/RAN side) */ |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 576 | [] MGCP.receive(tr_CRCX) -> value mgcp_cmd { |
| 577 | cpars.mgcp_call_id := f_MgcpCmd_extract_call_id(mgcp_cmd); |
| 578 | /* TODO: dynamic EP allocation case */ |
| 579 | cpars.mgcp_ep := mgcp_cmd.line.ep; |
Harald Welte | 4017d55 | 2018-01-26 21:40:05 +0100 | [diff] [blame] | 580 | var SDP_Message sdp := valueof(ts_SDP(cpars.mgw_rtp_ip_bss, cpars.mgw_rtp_ip_bss, |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 581 | hex2str(cpars.mgcp_call_id), "42", |
Harald Welte | 4017d55 | 2018-01-26 21:40:05 +0100 | [diff] [blame] | 582 | cpars.mgw_rtp_port_bss, |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 583 | { int2str(cpars.rtp_payload_type) }, |
| 584 | { valueof(ts_SDP_rtpmap(cpars.rtp_payload_type, |
| 585 | cpars.rtp_sdp_format)), |
| 586 | valueof(ts_SDP_ptime(20)) })); |
| 587 | MGCP.send(ts_CRCX_ACK(mgcp_cmd.line.trans_id, cpars.mgcp_connection_id_bss, sdp)); |
| 588 | } |
| 589 | } |
Harald Welte | 4017d55 | 2018-01-26 21:40:05 +0100 | [diff] [blame] | 590 | /* Second MGCP CRCX (this time for MSS/CN side) */ |
| 591 | MGCP.receive(tr_CRCX(cpars.mgcp_ep)) -> value mgcp_cmd { |
| 592 | var SDP_Message sdp := valueof(ts_SDP(cpars.mgw_rtp_ip_mss, cpars.mgw_rtp_ip_mss, |
| 593 | hex2str(cpars.mgcp_call_id), "42", |
| 594 | cpars.mgw_rtp_port_mss, |
| 595 | { int2str(cpars.rtp_payload_type) }, |
| 596 | { valueof(ts_SDP_rtpmap(cpars.rtp_payload_type, |
| 597 | cpars.rtp_sdp_format)), |
| 598 | valueof(ts_SDP_ptime(20)) })); |
| 599 | MGCP.send(ts_CRCX_ACK(mgcp_cmd.line.trans_id, cpars.mgcp_connection_id_mss, sdp)); |
| 600 | } |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 601 | |
| 602 | /* Alerting */ |
| 603 | MNCC.send(ts_MNCC_ALERT_req(cpars.mncc_callref)); |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 604 | |
Harald Welte | 4017d55 | 2018-01-26 21:40:05 +0100 | [diff] [blame] | 605 | var BSSMAP_IE_AoIP_TransportLayerAddress tla_ass := |
| 606 | valueof(ts_BSSMAP_IE_AoIP_TLA4(f_inet_addr(cpars.mgw_rtp_ip_bss),cpars.mgw_rtp_port_bss)); |
| 607 | interleave { |
| 608 | [] BSSAP.receive(tr_PDU_DTAP_MT(tr_ML3_MT_CC_ALERTING(cpars.transaction_id))) {} |
| 609 | /* expect AoIP IP/Port to match what we returned in CRCX_ACK above */ |
| 610 | [] BSSAP.receive(tr_BSSMAP_AssignmentReq(omit, tla_ass)) { |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 611 | var BSSMAP_IE_AoIP_TransportLayerAddress tla; |
| 612 | tla := valueof(ts_BSSMAP_IE_AoIP_TLA4(f_inet_addr(cpars.bss_rtp_ip), cpars.bss_rtp_port)); |
| 613 | BSSAP.send(ts_BSSMAP_AssignmentComplete(omit, tla)); |
| 614 | } |
| 615 | } |
| 616 | |
Harald Welte | 4017d55 | 2018-01-26 21:40:05 +0100 | [diff] [blame] | 617 | /* Answer. MNCC_SETUP_RSP -> CONNECT to MS; CONNECT_ACK from MS */ |
| 618 | MNCC.send(ts_MNCC_SETUP_rsp(cpars.mncc_callref)); |
| 619 | BSSAP.receive(tr_PDU_DTAP_MT(tr_ML3_MT_CC_CONNECT(cpars.transaction_id))); |
| 620 | BSSAP.send(ts_PDU_DTAP_MO(ts_ML3_MO_CC_CONNECT_ACK(cpars.transaction_id))); |
Harald Welte | b71901a | 2018-01-26 19:16:05 +0100 | [diff] [blame] | 621 | |
| 622 | f_sleep(3.0); |
| 623 | |
| 624 | /* Hangup by "B" side */ |
| 625 | MNCC.send(ts_MNCC_DISC_req(cpars.mncc_callref, valueof(ts_MNCC_cause(23)))); |
| 626 | BSSAP.receive(tr_PDU_DTAP_MT(tr_ML3_MT_CC_DISC(cpars.transaction_id))); |
| 627 | |
| 628 | /* Release of call */ |
| 629 | MNCC.send(ts_MNCC_REL_req(cpars.mncc_callref, valueof(ts_MNCC_cause(42)))); |
| 630 | BSSAP.receive(tr_PDU_DTAP_MT(tr_ML3_MT_CC_RELEASE(cpars.transaction_id))); |
| 631 | BSSAP.send(ts_PDU_DTAP_MO(ts_ML3_MO_CC_REL_COMPL(cpars.transaction_id))); |
| 632 | |
| 633 | /* clearing of radio channel */ |
| 634 | interleave { |
| 635 | [] BSSAP.receive(tr_BSSMAP_ClearCommand) { |
| 636 | BSSAP.send(ts_BSSMAP_ClearComplete); |
| 637 | BSSAP.receive(BSSAP_Conn_Prim:MSC_CONN_PRIM_DISC_IND); |
| 638 | } |
| 639 | [] MGCP.receive(tr_DLCX(?)) -> value mgcp_cmd { |
| 640 | /* TODO: For one or all connections on EP? */ |
| 641 | MGCP.send(ts_DLCX_ACK2(mgcp_cmd.line.trans_id)); |
| 642 | f_create_mgcp_delete_ep(cpars.mgcp_ep); |
| 643 | } |
| 644 | } |
| 645 | setverdict(pass); |
| 646 | } |
Harald Welte | a49e36e | 2018-01-21 19:29:33 +0100 | [diff] [blame] | 647 | |
Harald Welte | 1ddc716 | 2018-01-27 14:25:46 +0100 | [diff] [blame] | 648 | /* expect a clear command */ |
| 649 | function f_expect_clear(float t := 5.0) runs on BSC_ConnHdlr { |
| 650 | timer T := t; |
| 651 | |
| 652 | T.start; |
| 653 | alt { |
| 654 | [] BSSAP.receive(tr_BSSMAP_ClearCommand) { } |
| 655 | [] BSSAP.receive { |
| 656 | setverdict(fail, "Unexpected BSSMAP while waiting for ClearCommand"); |
| 657 | self.stop; |
| 658 | } |
| 659 | [] T.timeout { |
| 660 | setverdict(inconc, "Timeout waiting for ClearCommand"); |
| 661 | self.stop; |
| 662 | } |
| 663 | } |
| 664 | |
| 665 | BSSAP.send(ts_BSSMAP_ClearComplete); |
| 666 | |
| 667 | T.start; |
| 668 | alt { |
| 669 | [] BSSAP.receive(BSSAP_Conn_Prim:MSC_CONN_PRIM_DISC_IND) { |
| 670 | setverdict(pass); |
| 671 | } |
| 672 | [] BSSAP.receive { |
| 673 | setverdict(fail, "Unexpected BSSMAP while waiting for SCCP Release"); |
| 674 | self.stop; |
| 675 | } |
| 676 | [] T.timeout { |
| 677 | setverdict(inconc, "Timeout waiting for SCCP Release"); |
| 678 | self.stop; |
| 679 | } |
| 680 | } |
| 681 | } |
| 682 | |
Harald Welte | a49e36e | 2018-01-21 19:29:33 +0100 | [diff] [blame] | 683 | |
| 684 | |
| 685 | |
| 686 | } |
| 687 | |
| 688 | |