Harald Welte | 379d45a | 2017-08-03 09:55:15 +0200 | [diff] [blame] | 1 | module GGSN_Tests { |
| 2 | |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 3 | import from General_Types all; |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 4 | import from Osmocom_Types all; |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 5 | import from IPL4asp_PortType all; |
| 6 | import from IPL4asp_Types all; |
| 7 | import from GTP_CodecPort all; |
| 8 | import from GTP_CodecPort_CtrlFunct all; |
| 9 | import from GTPC_Types all; |
| 10 | import from GTPU_Types all; |
| 11 | |
| 12 | const integer GTP0_PORT := 3386; |
| 13 | const integer GTP1C_PORT := 2123; |
| 14 | const integer GTP1U_PORT := 2152; |
Harald Welte | 876345e | 2017-08-04 16:19:59 +0200 | [diff] [blame] | 15 | const charstring g_bind_ip_c := "127.23.42.1"; |
| 16 | const charstring g_bind_ip_u := g_bind_ip_c; |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 17 | |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 18 | type set PdpContext { |
| 19 | hexstring imsi, |
| 20 | octetstring msisdn optional, |
| 21 | octetstring apn, |
| 22 | EndUserAddress eua, |
| 23 | BIT4 nsapi, |
| 24 | /* TEI (Data) local side */ |
| 25 | OCT4 teid, |
| 26 | /* TEI (Control) local side */ |
| 27 | OCT4 teic, |
| 28 | /* TEI (Data) remote side */ |
| 29 | OCT4 teid_remote, |
| 30 | /* TEI (Control) remote side */ |
| 31 | OCT4 teic_remote, |
| 32 | /* next to-be-sent GTP-C sequence number */ |
| 33 | uint16_t c_seq_nr, |
| 34 | /* next to-be-sent GTP-U sequence number */ |
| 35 | uint16_t d_seq_nr |
| 36 | } |
| 37 | |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 38 | type component GT_CT { |
| 39 | port GTPC_PT GTPC; |
| 40 | port GTPU_PT GTPU; |
| 41 | |
| 42 | var OCT1 g_restart_ctr := '01'O; |
| 43 | /* FIXME: unify with g_bind_ip + parse from config file */ |
Harald Welte | 876345e | 2017-08-04 16:19:59 +0200 | [diff] [blame] | 44 | var OCT4 g_sgsn_ip_c := '7f172a01'O; |
| 45 | var OCT4 g_sgsn_ip_u := '7f172a01'O; |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 46 | /* FIXME: parse remName from config file */ |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 47 | var GtpPeer g_peer_c := { connId := 0, remName := "127.0.0.6", remPort := GTP1C_PORT }; |
| 48 | var GtpPeer g_peer_u := { connId := 0, remName := "127.0.0.6", remPort := GTP1U_PORT }; |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 49 | timer T_default := 3.0; |
| 50 | } |
| 51 | |
| 52 | function f_init() runs on GT_CT { |
| 53 | var Result res; |
| 54 | map(self:GTPC, system:GTPC); |
Harald Welte | 876345e | 2017-08-04 16:19:59 +0200 | [diff] [blame] | 55 | res := GTP_CodecPort_CtrlFunct.f_IPL4_listen(GTPC, g_bind_ip_c, GTP1C_PORT, {udp:={}}); |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 56 | log("GTP1C ConnectionID: ", res.connId); |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 57 | g_peer_c.connId := res.connId; |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 58 | |
| 59 | map(self:GTPU, system:GTPU); |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 60 | res := GTP_CodecPort_CtrlFunct.f_GTPU_listen(GTPU, g_bind_ip_u, GTP1U_PORT, {udp:={}}); |
| 61 | g_peer_u.connId:= res.connId; |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 62 | } |
| 63 | |
| 64 | /* generalized GTP-C receive template */ |
| 65 | template PDU_GTPC tr_GTP1C_PDU(template OCT1 msg_type, template OCT4 teid) := { |
| 66 | /* N-PDU Number flag (PN) shall be set to '0'. A GTP-C receiver shall not return an |
| 67 | * error if this flag is set to '1'. */ |
| 68 | pn_bit := '0'B, |
| 69 | /* Sequence number flag (S) shall be set to '1'. */ |
| 70 | s_bit := '1'B, |
| 71 | e_bit := ?, |
| 72 | spare := ?, |
| 73 | /* Protocol Type flag (PT) shall be set to '1'.*/ |
| 74 | pt := '1'B, |
| 75 | /* Version shall be set to decimal 1 ('001'). */ |
| 76 | version := '001'B, |
| 77 | messageType := msg_type, |
| 78 | lengthf := ?, |
| 79 | teid := teid, |
| 80 | opt_part := *, |
| 81 | gtpc_pdu := ? |
| 82 | } |
| 83 | |
| 84 | /* generalized GTP-C send template */ |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 85 | template PDU_GTPC ts_GTP1C_PDU(OCT1 msg_type, OCT4 teid, GTPC_PDUs pdu, uint16_t seq_nr) := { |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 86 | /* N-PDU Number flag (PN) shall be set to '0'. A GTP-C receiver shall not return an |
| 87 | * error if this flag is set to '1'. */ |
| 88 | pn_bit := '0'B, |
| 89 | /* Sequence number flag (S) shall be set to '1'. */ |
| 90 | s_bit := '1'B, |
| 91 | e_bit := '0'B, |
| 92 | spare := '0'B, |
| 93 | /* Protocol Type flag (PT) shall be set to '1'.*/ |
| 94 | pt := '1'B, |
| 95 | /* Version shall be set to decimal 1 ('001'). */ |
| 96 | version := '001'B, |
| 97 | messageType := msg_type, |
| 98 | lengthf := 0, /* we assume encoder overwrites this */ |
| 99 | teid := teid, |
| 100 | opt_part := { |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 101 | sequenceNumber := int2oct(seq_nr, 2), |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 102 | npduNumber := '00'O, |
| 103 | nextExtHeader := '00'O, |
| 104 | gTPC_extensionHeader_List := omit |
| 105 | }, |
| 106 | gtpc_pdu := pdu |
| 107 | } |
| 108 | |
| 109 | /* recovery IE */ |
| 110 | template Recovery_gtpc ts_Recovery(OCT1 restart_counter) := { |
| 111 | type_gtpc := '00'O, /* we assume encoder fixes this */ |
| 112 | restartCounter := restart_counter |
| 113 | } |
| 114 | |
| 115 | /* template matching reception of GTP-C echo-request */ |
| 116 | template Gtp1cUnitdata tr_GTPC_MsgType(template GtpPeer peer, template OCT1 msg_type, template OCT4 teid) := { |
| 117 | peer := peer, |
| 118 | gtpc := tr_GTP1C_PDU(msg_type, teid) |
| 119 | } |
| 120 | |
| 121 | /* template matching reception of GTP-C echo-request */ |
| 122 | template Gtp1cUnitdata tr_GTPC_PING(template GtpPeer peer) := tr_GTPC_MsgType(peer, echoRequest, '00000000'O); |
| 123 | |
| 124 | template GTPC_PDUs ts_EchoRespPDU(OCT1 restart_counter) := { |
| 125 | echoResponse := { |
| 126 | recovery := { |
| 127 | type_gtpc := '00'O, /* we assume encoder fixes? */ |
| 128 | restartCounter := restart_counter |
| 129 | }, |
| 130 | private_extension_gtpc := omit |
| 131 | } |
| 132 | } |
| 133 | |
| 134 | /* master template for senidng a GTP-C echo response */ |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 135 | template Gtp1cUnitdata ts_GTPC_PONG(GtpPeer peer, uint16_t seq, OCT1 rest_ctr) := { |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 136 | peer := peer, |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 137 | gtpc := ts_GTP1C_PDU(echoResponse, '00000000'O, valueof(ts_EchoRespPDU(rest_ctr)), seq) |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 138 | } |
| 139 | |
| 140 | template EndUserAddress t_EuaIPv4(template OCT4 ip_addr) := { |
| 141 | type_gtpc := '80'O, |
| 142 | endUserAddress := { |
| 143 | endUserAddressIPv4 := { |
| 144 | lengthf := 2, |
| 145 | pdp_typeorg := '0001'B, |
| 146 | spare := '1111'B, |
| 147 | pdp_typenum := '21'O, |
| 148 | ipv4_address := ip_addr |
| 149 | } |
| 150 | } |
| 151 | } |
| 152 | template EndUserAddress t_EuaIPv4Dyn := t_EuaIPv4(omit); |
| 153 | template EndUserAddress t_EuaIPv6(template OCT16 ip_addr) := { |
| 154 | type_gtpc := '80'O, |
| 155 | endUserAddress := { |
| 156 | endUserAddressIPv6 := { |
| 157 | lengthf := 2, |
| 158 | pdp_typeorg := '0001'B, |
| 159 | spare := '1111'B, |
| 160 | pdp_typenum := '57'O, |
| 161 | ipv6_address := ip_addr |
| 162 | } |
| 163 | } |
| 164 | } |
| 165 | template EndUserAddress t_EuaIPv6Dyn := t_EuaIPv6(omit); |
| 166 | |
| 167 | template AccessPointName ts_APN(octetstring apn) := { |
| 168 | type_gtpc := '83'O, |
| 169 | lengthf := lengthof(apn), |
| 170 | apn_value := apn |
| 171 | } |
| 172 | |
| 173 | template GSN_Address_GTPC ts_GsnAddr(octetstring ip_addr) := { |
| 174 | type_gtpc := '85'O, |
| 175 | lengthf := lengthof(ip_addr), |
| 176 | addressf := ip_addr |
| 177 | } |
| 178 | |
| 179 | template MSISDN ts_Msisdn(octetstring msisdn) := { |
| 180 | type_gtpc := '86'O, |
| 181 | lengthf := lengthof(msisdn), |
| 182 | msisdn := msisdn |
| 183 | } |
| 184 | |
| 185 | template QualityOfServiceProfile ts_QosDefault := { |
| 186 | type_gtpc := '87'O, |
| 187 | lengthf := 4, |
| 188 | allocRetensionPrio := '00'O, |
| 189 | qos_ProfileValue := { |
| 190 | reliabilityClass := '011'B, |
| 191 | delayClass := '001'B, |
| 192 | spare1 := '00'B, |
| 193 | precedenceClass := '010'B, |
| 194 | spare2 := '0'B, |
| 195 | peakThroughput := '1001'B, |
| 196 | meanThroughput := '11111'B, |
| 197 | spare3 := '000'B, |
| 198 | deliverErroneusSDU := omit, |
| 199 | deliveryOrder := omit, |
| 200 | trafficClass := omit, |
| 201 | maxSDUSize := omit, |
| 202 | maxBitrateUplink := omit, |
| 203 | maxBitrateDownlink := omit, |
| 204 | sduErrorRatio := omit, |
| 205 | residualBER := omit, |
| 206 | trafficHandlingPriority := omit, |
| 207 | transferDelay := omit, |
| 208 | guaranteedBitRateUplink := omit, |
| 209 | guaranteedBitRateDownlink := omit, |
| 210 | sourceStatisticsDescriptor := omit, |
| 211 | signallingIndication := omit, |
| 212 | spare4 := omit, |
| 213 | maxBitrateDownlinkExt := omit, |
| 214 | guaranteedBitRateDownlinkExt := omit, |
| 215 | maxBitrateUplinkExt := omit, |
| 216 | guaranteedBitRateUplinkExt := omit |
| 217 | } |
| 218 | } |
| 219 | |
| 220 | template IMSI_gtpc ts_Imsi(hexstring digits) := { |
| 221 | type_gtpc := '02'O, |
| 222 | digits := digits, |
| 223 | padding := 'F'H |
| 224 | } |
| 225 | |
| 226 | template GTPC_PDUs ts_CreatePdpPDU(hexstring imsi, OCT1 restart_ctr, OCT4 teid_data, OCT4 teid_ctrl, |
| 227 | BIT4 nsapi, EndUserAddress eua, octetstring apn, |
| 228 | octetstring sgsn_ip_sign, octetstring sgsn_ip_data, |
| 229 | octetstring msisdn) := { |
| 230 | createPDPContextRequest := { |
| 231 | imsi := ts_Imsi(imsi), |
| 232 | rai := omit, |
| 233 | recovery := ts_Recovery(restart_ctr), |
| 234 | selectionMode := { |
| 235 | type_gtpc := '0F'O, |
| 236 | selectModeValue := '00'B, |
| 237 | spare := '111111'B |
| 238 | }, |
| 239 | teidDataI := { |
| 240 | type_gtpc := '00'O, |
| 241 | teidDataI := teid_data |
| 242 | }, |
| 243 | teidControlPlane := { |
| 244 | type_gtpc := '00'O, |
| 245 | teidControlPlane := teid_ctrl |
| 246 | }, |
| 247 | nsapi := { |
| 248 | type_gtpc := '00'O, |
| 249 | nsapi := nsapi, |
| 250 | unused := '0000'B |
| 251 | }, |
| 252 | linked_nsapi := omit, |
| 253 | charging_char := omit, |
| 254 | trace_ref := omit, |
| 255 | trace_type := omit, |
| 256 | endUserAddress := eua, |
| 257 | accessPointName := ts_APN(apn), |
| 258 | protConfigOptions := omit, |
| 259 | sgsn_addr_signalling := ts_GsnAddr(sgsn_ip_sign), |
| 260 | sgsn_addr_traffic := ts_GsnAddr(sgsn_ip_data), |
| 261 | msisdn := ts_Msisdn(msisdn), |
| 262 | qualityOfServiceProfile := ts_QosDefault, |
| 263 | tft := omit, |
| 264 | triggerId := omit, |
| 265 | omcId := omit, |
| 266 | commonFlags := omit, |
| 267 | aPN_Restriction := omit, |
| 268 | ratType := omit, |
| 269 | userLocationInformation := omit, |
| 270 | mS_TimeZone := omit, |
| 271 | imeisv := omit, |
| 272 | camelChargingInformationContainer := omit, |
| 273 | additionalTraceInfo := omit, |
| 274 | correlationID := omit, |
| 275 | evolvedAllocationRetentionPriorityI := omit, |
| 276 | extendedCommonFlags := omit, |
| 277 | userCSGInformation := omit, |
| 278 | aPN_AMBR := omit, |
| 279 | signallingPriorityIndication := omit, |
| 280 | cN_OperatorSelectionEntity := omit, |
| 281 | private_extension_gtpc := omit |
| 282 | } |
| 283 | } |
| 284 | |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 285 | template Gtp1cUnitdata ts_GTPC_CreatePDP(GtpPeer peer, uint16_t seq, hexstring imsi, |
| 286 | OCT1 restart_ctr, OCT4 teid_data, |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 287 | OCT4 teid_ctrl, BIT4 nsapi, EndUserAddress eua, |
| 288 | octetstring apn, octetstring sgsn_ip_sign, |
| 289 | octetstring sgsn_ip_data, octetstring msisdn) := { |
| 290 | peer := peer, |
| 291 | gtpc := ts_GTP1C_PDU(createPDPContextRequest, '00000000'O, |
| 292 | valueof(ts_CreatePdpPDU(imsi, restart_ctr, teid_data, teid_ctrl, |
| 293 | nsapi, eua, apn, sgsn_ip_sign, |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 294 | sgsn_ip_data, msisdn)), seq) |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 295 | } |
| 296 | |
Harald Welte | f1e0d5a | 2017-08-05 08:51:22 +0200 | [diff] [blame] | 297 | function f_teardown_ind_IE(in template BIT1 ind) return template TearDownInd { |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 298 | /* |
| 299 | if (not isvalue(ind)) { |
Harald Welte | f1e0d5a | 2017-08-05 08:51:22 +0200 | [diff] [blame] | 300 | return omit; |
| 301 | } |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 302 | */ |
Harald Welte | f1e0d5a | 2017-08-05 08:51:22 +0200 | [diff] [blame] | 303 | var TearDownInd ret := { |
| 304 | type_gtpc := '13'O, |
| 305 | tdInd := valueof(ind), |
| 306 | spare:= '0000000'B |
| 307 | } |
| 308 | return ret; |
| 309 | } |
| 310 | |
| 311 | template GTPC_PDUs ts_DeletePdpPDU(BIT4 nsapi, template BIT1 teardown_ind) := { |
| 312 | deletePDPContextRequest := { |
| 313 | cause := omit, |
| 314 | tearDownIndicator := f_teardown_ind_IE(teardown_ind), |
| 315 | nsapi := { |
| 316 | type_gtpc := '14'O, |
| 317 | nsapi := nsapi, |
| 318 | unused := '0000'B |
| 319 | }, |
| 320 | protConfigOptions := omit, |
| 321 | userLocationInformation := omit, |
| 322 | mS_TimeZone := omit, |
| 323 | extendedCommonFlags := omit, |
| 324 | uLI_Timestamp := omit, |
| 325 | private_extension_gtpc := omit |
| 326 | } |
| 327 | } |
| 328 | |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 329 | template Gtp1cUnitdata ts_GTPC_DeletePDP(GtpPeer peer, uint16_t seq, OCT4 teid, |
| 330 | BIT4 nsapi, template BIT1 teardown_ind) := { |
Harald Welte | f1e0d5a | 2017-08-05 08:51:22 +0200 | [diff] [blame] | 331 | peer := peer, |
| 332 | gtpc := ts_GTP1C_PDU(deletePDPContextRequest, teid, |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 333 | valueof(ts_DeletePdpPDU(nsapi, teardown_ind)), seq) |
Harald Welte | f1e0d5a | 2017-08-05 08:51:22 +0200 | [diff] [blame] | 334 | } |
| 335 | |
| 336 | |
Harald Welte | 3af8948 | 2017-08-04 16:20:23 +0200 | [diff] [blame] | 337 | /* GTP-U */ |
| 338 | |
| 339 | template PDU_GTPU tr_GTP1U_PDU(template OCT1 msg_type, template OCT4 teid) := { |
| 340 | pn_bit := ?, |
| 341 | s_bit := ?, |
| 342 | e_bit := ?, |
| 343 | spare := ?, |
| 344 | /* Protocol Type flag (PT) shall be set to '1' in GTP */ |
| 345 | pt := '1'B, |
| 346 | /* Version shall be set to decimal 1 ('001'). */ |
| 347 | version := '001'B, |
| 348 | messageType := msg_type, |
| 349 | lengthf := ?, |
| 350 | teid := teid, |
| 351 | opt_part := *, |
| 352 | gtpu_IEs := ? |
| 353 | } |
| 354 | |
| 355 | /* generalized GTP-U send template */ |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 356 | template PDU_GTPU ts_GTP1U_PDU(OCT1 msg_type, uint16_t seq, OCT4 teid, GTPU_IEs ies) := { |
Harald Welte | 3af8948 | 2017-08-04 16:20:23 +0200 | [diff] [blame] | 357 | /* N-PDU Number flag (PN): the GTP-U header contains a meaningful N-PDU Number field if the PN |
| 358 | * flag is set to 1. */ |
| 359 | pn_bit := '0'B, /* we assume the encoder overwrites this if an optional part is given */ |
| 360 | /* If the Sequence Number flag (S) is set to '1' the sequence number field is present and |
| 361 | * meaningful otherwise it is set to '0'. For GTP-U messages Echo Request, Echo Response, |
| 362 | * Error Indication and Supported Extension Headers Notification, the S flag shall be set to '1'. */ |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 363 | s_bit := '1'B, /* we assume the encoder overwrites this if an optional part is given */ |
Harald Welte | 3af8948 | 2017-08-04 16:20:23 +0200 | [diff] [blame] | 364 | /* Extension header presence */ |
| 365 | e_bit := '0'B, |
| 366 | spare := '0'B, |
| 367 | /* Protocol Type flag (PT) shall be set to '1' in GTP */ |
| 368 | pt := '1'B, |
| 369 | /* Version shall be set to decimal 1 ('001'). */ |
| 370 | version := '001'B, |
| 371 | messageType := msg_type, |
| 372 | lengthf := 0, /* we assume encoder overwrites this */ |
| 373 | teid := teid, |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 374 | opt_part := { |
| 375 | sequenceNumber := int2oct(seq, 2), |
| 376 | npduNumber := '00'O, |
| 377 | nextExtHeader := '00'O, |
| 378 | gTPU_extensionHeader_List := omit |
| 379 | }, |
Harald Welte | 3af8948 | 2017-08-04 16:20:23 +0200 | [diff] [blame] | 380 | gtpu_IEs := ies |
| 381 | } |
| 382 | |
| 383 | template Gtp1uUnitdata tr_GTPU_MsgType(template GtpPeer peer, template OCT1 msg_type, template OCT4 teid) := { |
| 384 | peer := peer, |
| 385 | gtpu := tr_GTP1U_PDU(msg_type, teid) |
| 386 | } |
| 387 | |
| 388 | |
| 389 | /* template matching reception of GTP-C echo-request */ |
| 390 | template Gtp1uUnitdata tr_GTPU_PING(template GtpPeer peer) := tr_GTPU_MsgType(peer, echoRequest, '00000000'O); |
| 391 | |
| 392 | template GTPU_IEs ts_UEchoRespPDU(OCT1 restart_counter) := { |
| 393 | echoResponse_IEs := { |
| 394 | recovery_gtpu := { |
| 395 | type_gtpu := '00'O, /* we assume encoder fixes? */ |
| 396 | restartCounter := restart_counter |
| 397 | }, |
| 398 | private_extension_gtpu := omit |
| 399 | } |
| 400 | } |
| 401 | |
| 402 | /* master template for sending a GTP-U echo response */ |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 403 | template Gtp1uUnitdata ts_GTPU_PONG(GtpPeer peer, uint16_t seq, OCT1 rest_ctr) := { |
Harald Welte | 3af8948 | 2017-08-04 16:20:23 +0200 | [diff] [blame] | 404 | peer := peer, |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 405 | gtpu := ts_GTP1U_PDU(echoResponse, seq, '00000000'O, valueof(ts_UEchoRespPDU(rest_ctr))) |
Harald Welte | 3af8948 | 2017-08-04 16:20:23 +0200 | [diff] [blame] | 406 | } |
| 407 | |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 408 | /* master template for sending a GTP-U user plane data */ |
| 409 | template Gtp1uUnitdata ts_GTP1U_GPDU(GtpPeer peer, uint16_t seq, OCT4 teid, octetstring data) := { |
| 410 | peer := peer, |
| 411 | gtpu := ts_GTP1U_PDU('FF'O, seq, teid, { g_PDU_IEs := { data := data }}) |
| 412 | } |
Harald Welte | 3af8948 | 2017-08-04 16:20:23 +0200 | [diff] [blame] | 413 | |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 414 | /* Altstep implementing responses to any incoming echo requests */ |
| 415 | altstep pingpong() runs on GT_CT { |
| 416 | var Gtp1cUnitdata ud; |
Harald Welte | 3af8948 | 2017-08-04 16:20:23 +0200 | [diff] [blame] | 417 | var Gtp1uUnitdata udu; |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 418 | [] GTPC.receive(tr_GTPC_PING(?)) -> value ud { |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 419 | var uint16_t seq := oct2int(ud.gtpc.opt_part.sequenceNumber); |
| 420 | GTPC.send(ts_GTPC_PONG(ud.peer, seq, '00'O)); |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 421 | repeat; |
| 422 | }; |
Harald Welte | 3af8948 | 2017-08-04 16:20:23 +0200 | [diff] [blame] | 423 | [] GTPU.receive(tr_GTPU_PING(?)) -> value udu { |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 424 | var uint16_t seq := oct2int(udu.gtpu.opt_part.sequenceNumber); |
| 425 | GTPU.send(ts_GTPU_PONG(udu.peer, seq, '00'O)); |
Harald Welte | 3af8948 | 2017-08-04 16:20:23 +0200 | [diff] [blame] | 426 | }; |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 427 | [] T_default.timeout { setverdict(fail); }; |
| 428 | } |
| 429 | |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 430 | /* 'internet' in DNS encoding */ |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 431 | template octetstring t_ApnInternet := '08696E7465726E6574'O; |
| 432 | |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 433 | /* return random integer between 0 and max */ |
| 434 | function f_rnd_int(integer max) return integer { |
| 435 | return float2int(rnd()*int2float(max)); |
| 436 | } |
| 437 | |
| 438 | /* return random NSAPI */ |
| 439 | function f_rnd_nsapi() return BIT4 { |
| 440 | return int2bit(f_rnd_int(16), 4); |
| 441 | } |
| 442 | |
| 443 | /* return random TEI[DC] */ |
| 444 | function f_rnd_tei() return OCT4 { |
| 445 | return int2oct(f_rnd_int(4294967296), 4); |
| 446 | } |
| 447 | |
| 448 | /* define an (internal) representation of a PDP context */ |
| 449 | template PdpContext t_DefinePDP(hexstring imsi, octetstring msisdn, octetstring apn, |
| 450 | EndUserAddress eua) := { |
| 451 | imsi := imsi, |
| 452 | msisdn := msisdn, |
| 453 | nsapi := f_rnd_nsapi(), |
| 454 | apn := apn, |
| 455 | eua := eua, |
| 456 | teid := f_rnd_tei(), |
| 457 | teic := f_rnd_tei(), |
| 458 | d_seq_nr := 0, |
| 459 | c_seq_nr := 0 |
| 460 | } |
| 461 | |
| 462 | /* send GTP-C for a given context and increment sequence number */ |
| 463 | function f_send_gtpc(inout PdpContext ctx, in template Gtp1cUnitdata data) runs on GT_CT { |
| 464 | GTPC.send(data); |
| 465 | ctx.c_seq_nr := ctx.c_seq_nr + 1; |
| 466 | } |
| 467 | |
| 468 | /* send GTP-U for a given context and increment sequence number */ |
| 469 | function f_send_gtpu(inout PdpContext ctx, in template Gtp1uUnitdata data) runs on GT_CT { |
| 470 | GTPU.send(data); |
| 471 | ctx.d_seq_nr := ctx.d_seq_nr + 1; |
| 472 | } |
| 473 | |
| 474 | /* send a PDP context activation */ |
| 475 | function f_pdp_ctx_act(inout PdpContext ctx) runs on GT_CT { |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 476 | var Gtp1cUnitdata ud; |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 477 | var default d; |
| 478 | |
| 479 | log("sending CreatePDP"); |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 480 | f_send_gtpc(ctx, ts_GTPC_CreatePDP(g_peer_c, ctx.c_seq_nr, ctx.imsi, g_restart_ctr, |
| 481 | ctx.teid, ctx.teic, ctx.nsapi, ctx.eua, ctx.apn, |
| 482 | g_sgsn_ip_c, g_sgsn_ip_u, ctx.msisdn)); |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 483 | T_default.start; |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 484 | d := activate(pingpong()); |
| 485 | alt { |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 486 | [] GTPC.receive(tr_GTPC_MsgType(g_peer_c, createPDPContextResponse, ctx.teic)) -> value ud { |
| 487 | var CreatePDPContextResponse cpr := ud.gtpc.gtpc_pdu.createPDPContextResponse; |
| 488 | if (cpr.cause.causevalue == '80'O) { |
| 489 | ctx.teid_remote := cpr.teidDataI.teidDataI; |
| 490 | ctx.teic_remote := cpr.teidControlPlane.teidControlPlane; |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 491 | setverdict(pass); |
| 492 | } else { |
| 493 | setverdict(fail); |
| 494 | } |
| 495 | } |
| 496 | } |
| 497 | deactivate(d); |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 498 | T_default.stop; |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 499 | } |
| 500 | |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 501 | function f_pdp_ctx_del(PdpContext ctx, template BIT1 teardown_ind) runs on GT_CT { |
Harald Welte | f1e0d5a | 2017-08-05 08:51:22 +0200 | [diff] [blame] | 502 | var Gtp1cUnitdata ud; |
| 503 | var default d; |
| 504 | |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 505 | f_send_gtpc(ctx, ts_GTPC_DeletePDP(g_peer_c, ctx.c_seq_nr, ctx.teic_remote, ctx.nsapi, teardown_ind)); |
Harald Welte | f1e0d5a | 2017-08-05 08:51:22 +0200 | [diff] [blame] | 506 | T_default.start; |
Harald Welte | f1e0d5a | 2017-08-05 08:51:22 +0200 | [diff] [blame] | 507 | d := activate(pingpong()); |
| 508 | alt { |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 509 | [] GTPC.receive(tr_GTPC_MsgType(g_peer_c, deletePDPContextResponse, ctx.teic)) -> value ud { |
Harald Welte | f1e0d5a | 2017-08-05 08:51:22 +0200 | [diff] [blame] | 510 | if (ud.gtpc.gtpc_pdu.deletePDPContextResponse.cause.causevalue == '80'O) { |
| 511 | setverdict(pass); |
| 512 | } else { |
| 513 | setverdict(fail); |
| 514 | } |
| 515 | } |
| 516 | } |
| 517 | deactivate(d); |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 518 | T_default.stop; |
Harald Welte | f1e0d5a | 2017-08-05 08:51:22 +0200 | [diff] [blame] | 519 | } |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 520 | /* IPv6 router solicitation fe80::2 -> ff02::2 from 02:88:b5:1f:25:59 */ |
| 521 | const octetstring c_router_solicit := '6000000000103afffe800000000000000000000000000002ff02000000000000000000000000000285009f2b0000000001010288b51f2559'O; |
| 522 | /* IPv6 neighbor solicitation fe80::2 -> ff02::1:ff00:2 from 02:88:b5:1f:25:59 */ |
| 523 | const octetstring c_neigh_solicit:= '6000000000203afffe800000000000000000000000000002ff0200000000000000000001ff00000287009f9600000000fe80000000000000000000000000000201010288b51f2559'O; |
Harald Welte | f1e0d5a | 2017-08-05 08:51:22 +0200 | [diff] [blame] | 524 | |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 525 | testcase TC_activate_pdp4() runs on GT_CT { |
| 526 | f_init(); |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 527 | var PdpContext ctx := valueof(t_DefinePDP('262420123456789'H, '1234'O, valueof(t_ApnInternet), valueof(t_EuaIPv4Dyn))); |
| 528 | f_pdp_ctx_act(ctx); |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 529 | } |
| 530 | |
| 531 | testcase TC_activate_pdp6() runs on GT_CT { |
| 532 | f_init(); |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame^] | 533 | var PdpContext ctx := valueof(t_DefinePDP('262420123456789'H, '1234'O, valueof(t_ApnInternet), valueof(t_EuaIPv6Dyn))); |
| 534 | f_pdp_ctx_act(ctx); |
| 535 | f_send_gtpu(ctx, ts_GTP1U_GPDU(g_peer_u, ctx.d_seq_nr, ctx.teid_remote, c_router_solicit)); |
| 536 | f_send_gtpu(ctx, ts_GTP1U_GPDU(g_peer_u, ctx.d_seq_nr, ctx.teid_remote, c_neigh_solicit)); |
| 537 | f_pdp_ctx_del(ctx, '1'B); |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 538 | } |
| 539 | |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 540 | control { |
| 541 | execute(TC_activate_pdp4()); |
| 542 | execute(TC_activate_pdp6()); |
| 543 | } |
Harald Welte | 379d45a | 2017-08-03 09:55:15 +0200 | [diff] [blame] | 544 | } |