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; |
Harald Welte | 231b941 | 2017-08-09 17:16:31 +0200 | [diff] [blame] | 11 | import from IP_Types all; |
| 12 | import from ICMPv6_Types all; |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 13 | |
| 14 | const integer GTP0_PORT := 3386; |
| 15 | const integer GTP1C_PORT := 2123; |
| 16 | const integer GTP1U_PORT := 2152; |
Harald Welte | 876345e | 2017-08-04 16:19:59 +0200 | [diff] [blame] | 17 | const charstring g_bind_ip_c := "127.23.42.1"; |
| 18 | const charstring g_bind_ip_u := g_bind_ip_c; |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 19 | |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 20 | type set PdpContext { |
| 21 | hexstring imsi, |
| 22 | octetstring msisdn optional, |
| 23 | octetstring apn, |
Harald Welte | ed7a177 | 2017-08-09 20:26:20 +0200 | [diff] [blame] | 24 | ProtConfigOptions pco_req optional, |
| 25 | ProtConfigOptions pco_neg optional, |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 26 | EndUserAddress eua, |
Harald Welte | 231b941 | 2017-08-09 17:16:31 +0200 | [diff] [blame] | 27 | OCT16 ip6_prefix optional, |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 28 | BIT4 nsapi, |
| 29 | /* TEI (Data) local side */ |
| 30 | OCT4 teid, |
| 31 | /* TEI (Control) local side */ |
| 32 | OCT4 teic, |
| 33 | /* TEI (Data) remote side */ |
| 34 | OCT4 teid_remote, |
| 35 | /* TEI (Control) remote side */ |
Harald Welte | 5438b9d | 2017-08-13 13:27:48 +0200 | [diff] [blame^] | 36 | OCT4 teic_remote |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 37 | } |
| 38 | |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 39 | type component GT_CT { |
| 40 | port GTPC_PT GTPC; |
| 41 | port GTPU_PT GTPU; |
| 42 | |
| 43 | var OCT1 g_restart_ctr := '01'O; |
| 44 | /* FIXME: unify with g_bind_ip + parse from config file */ |
Harald Welte | 876345e | 2017-08-04 16:19:59 +0200 | [diff] [blame] | 45 | var OCT4 g_sgsn_ip_c := '7f172a01'O; |
| 46 | var OCT4 g_sgsn_ip_u := '7f172a01'O; |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 47 | /* FIXME: parse remName from config file */ |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 48 | var GtpPeer g_peer_c := { connId := 0, remName := "127.0.0.6", remPort := GTP1C_PORT }; |
| 49 | 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] | 50 | timer T_default := 3.0; |
Harald Welte | 5438b9d | 2017-08-13 13:27:48 +0200 | [diff] [blame^] | 51 | |
| 52 | /* next to-be-sent GTP-C sequence number */ |
| 53 | var uint16_t g_c_seq_nr; |
| 54 | /* next to-be-sent GTP-U sequence number */ |
| 55 | var uint16_t g_d_seq_nr; |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 56 | } |
| 57 | |
| 58 | function f_init() runs on GT_CT { |
| 59 | var Result res; |
| 60 | map(self:GTPC, system:GTPC); |
Harald Welte | 876345e | 2017-08-04 16:19:59 +0200 | [diff] [blame] | 61 | 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] | 62 | log("GTP1C ConnectionID: ", res.connId); |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 63 | g_peer_c.connId := res.connId; |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 64 | |
| 65 | map(self:GTPU, system:GTPU); |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 66 | res := GTP_CodecPort_CtrlFunct.f_GTPU_listen(GTPU, g_bind_ip_u, GTP1U_PORT, {udp:={}}); |
| 67 | g_peer_u.connId:= res.connId; |
Harald Welte | 5438b9d | 2017-08-13 13:27:48 +0200 | [diff] [blame^] | 68 | |
| 69 | g_restart_ctr := f_rnd_octstring(1); |
| 70 | g_c_seq_nr := (oct2int(g_restart_ctr) * 1024) mod 65536; |
| 71 | g_d_seq_nr := (oct2int(g_restart_ctr) * 2000) mod 65536; |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 72 | } |
| 73 | |
| 74 | /* generalized GTP-C receive template */ |
| 75 | template PDU_GTPC tr_GTP1C_PDU(template OCT1 msg_type, template OCT4 teid) := { |
| 76 | /* N-PDU Number flag (PN) shall be set to '0'. A GTP-C receiver shall not return an |
| 77 | * error if this flag is set to '1'. */ |
| 78 | pn_bit := '0'B, |
| 79 | /* Sequence number flag (S) shall be set to '1'. */ |
| 80 | s_bit := '1'B, |
| 81 | e_bit := ?, |
| 82 | spare := ?, |
| 83 | /* Protocol Type flag (PT) shall be set to '1'.*/ |
| 84 | pt := '1'B, |
| 85 | /* Version shall be set to decimal 1 ('001'). */ |
| 86 | version := '001'B, |
| 87 | messageType := msg_type, |
| 88 | lengthf := ?, |
| 89 | teid := teid, |
| 90 | opt_part := *, |
| 91 | gtpc_pdu := ? |
| 92 | } |
| 93 | |
| 94 | /* generalized GTP-C send template */ |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 95 | 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] | 96 | /* N-PDU Number flag (PN) shall be set to '0'. A GTP-C receiver shall not return an |
| 97 | * error if this flag is set to '1'. */ |
| 98 | pn_bit := '0'B, |
| 99 | /* Sequence number flag (S) shall be set to '1'. */ |
| 100 | s_bit := '1'B, |
| 101 | e_bit := '0'B, |
| 102 | spare := '0'B, |
| 103 | /* Protocol Type flag (PT) shall be set to '1'.*/ |
| 104 | pt := '1'B, |
| 105 | /* Version shall be set to decimal 1 ('001'). */ |
| 106 | version := '001'B, |
| 107 | messageType := msg_type, |
| 108 | lengthf := 0, /* we assume encoder overwrites this */ |
| 109 | teid := teid, |
| 110 | opt_part := { |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 111 | sequenceNumber := int2oct(seq_nr, 2), |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 112 | npduNumber := '00'O, |
| 113 | nextExtHeader := '00'O, |
| 114 | gTPC_extensionHeader_List := omit |
| 115 | }, |
| 116 | gtpc_pdu := pdu |
| 117 | } |
| 118 | |
| 119 | /* recovery IE */ |
| 120 | template Recovery_gtpc ts_Recovery(OCT1 restart_counter) := { |
| 121 | type_gtpc := '00'O, /* we assume encoder fixes this */ |
| 122 | restartCounter := restart_counter |
| 123 | } |
| 124 | |
| 125 | /* template matching reception of GTP-C echo-request */ |
| 126 | template Gtp1cUnitdata tr_GTPC_MsgType(template GtpPeer peer, template OCT1 msg_type, template OCT4 teid) := { |
| 127 | peer := peer, |
| 128 | gtpc := tr_GTP1C_PDU(msg_type, teid) |
| 129 | } |
| 130 | |
| 131 | /* template matching reception of GTP-C echo-request */ |
| 132 | template Gtp1cUnitdata tr_GTPC_PING(template GtpPeer peer) := tr_GTPC_MsgType(peer, echoRequest, '00000000'O); |
| 133 | |
| 134 | template GTPC_PDUs ts_EchoRespPDU(OCT1 restart_counter) := { |
| 135 | echoResponse := { |
| 136 | recovery := { |
| 137 | type_gtpc := '00'O, /* we assume encoder fixes? */ |
| 138 | restartCounter := restart_counter |
| 139 | }, |
| 140 | private_extension_gtpc := omit |
| 141 | } |
| 142 | } |
| 143 | |
| 144 | /* master template for senidng a GTP-C echo response */ |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 145 | 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] | 146 | peer := peer, |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 147 | 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] | 148 | } |
| 149 | |
| 150 | template EndUserAddress t_EuaIPv4(template OCT4 ip_addr) := { |
| 151 | type_gtpc := '80'O, |
| 152 | endUserAddress := { |
| 153 | endUserAddressIPv4 := { |
| 154 | lengthf := 2, |
| 155 | pdp_typeorg := '0001'B, |
| 156 | spare := '1111'B, |
| 157 | pdp_typenum := '21'O, |
| 158 | ipv4_address := ip_addr |
| 159 | } |
| 160 | } |
| 161 | } |
| 162 | template EndUserAddress t_EuaIPv4Dyn := t_EuaIPv4(omit); |
| 163 | template EndUserAddress t_EuaIPv6(template OCT16 ip_addr) := { |
| 164 | type_gtpc := '80'O, |
| 165 | endUserAddress := { |
| 166 | endUserAddressIPv6 := { |
| 167 | lengthf := 2, |
| 168 | pdp_typeorg := '0001'B, |
| 169 | spare := '1111'B, |
| 170 | pdp_typenum := '57'O, |
| 171 | ipv6_address := ip_addr |
| 172 | } |
| 173 | } |
| 174 | } |
| 175 | template EndUserAddress t_EuaIPv6Dyn := t_EuaIPv6(omit); |
| 176 | |
| 177 | template AccessPointName ts_APN(octetstring apn) := { |
| 178 | type_gtpc := '83'O, |
| 179 | lengthf := lengthof(apn), |
| 180 | apn_value := apn |
| 181 | } |
| 182 | |
| 183 | template GSN_Address_GTPC ts_GsnAddr(octetstring ip_addr) := { |
| 184 | type_gtpc := '85'O, |
| 185 | lengthf := lengthof(ip_addr), |
| 186 | addressf := ip_addr |
| 187 | } |
| 188 | |
| 189 | template MSISDN ts_Msisdn(octetstring msisdn) := { |
| 190 | type_gtpc := '86'O, |
| 191 | lengthf := lengthof(msisdn), |
| 192 | msisdn := msisdn |
| 193 | } |
| 194 | |
| 195 | template QualityOfServiceProfile ts_QosDefault := { |
| 196 | type_gtpc := '87'O, |
| 197 | lengthf := 4, |
| 198 | allocRetensionPrio := '00'O, |
| 199 | qos_ProfileValue := { |
| 200 | reliabilityClass := '011'B, |
| 201 | delayClass := '001'B, |
| 202 | spare1 := '00'B, |
| 203 | precedenceClass := '010'B, |
| 204 | spare2 := '0'B, |
| 205 | peakThroughput := '1001'B, |
| 206 | meanThroughput := '11111'B, |
| 207 | spare3 := '000'B, |
| 208 | deliverErroneusSDU := omit, |
| 209 | deliveryOrder := omit, |
| 210 | trafficClass := omit, |
| 211 | maxSDUSize := omit, |
| 212 | maxBitrateUplink := omit, |
| 213 | maxBitrateDownlink := omit, |
| 214 | sduErrorRatio := omit, |
| 215 | residualBER := omit, |
| 216 | trafficHandlingPriority := omit, |
| 217 | transferDelay := omit, |
| 218 | guaranteedBitRateUplink := omit, |
| 219 | guaranteedBitRateDownlink := omit, |
| 220 | sourceStatisticsDescriptor := omit, |
| 221 | signallingIndication := omit, |
| 222 | spare4 := omit, |
| 223 | maxBitrateDownlinkExt := omit, |
| 224 | guaranteedBitRateDownlinkExt := omit, |
| 225 | maxBitrateUplinkExt := omit, |
| 226 | guaranteedBitRateUplinkExt := omit |
| 227 | } |
| 228 | } |
| 229 | |
| 230 | template IMSI_gtpc ts_Imsi(hexstring digits) := { |
| 231 | type_gtpc := '02'O, |
| 232 | digits := digits, |
| 233 | padding := 'F'H |
| 234 | } |
| 235 | |
| 236 | template GTPC_PDUs ts_CreatePdpPDU(hexstring imsi, OCT1 restart_ctr, OCT4 teid_data, OCT4 teid_ctrl, |
| 237 | BIT4 nsapi, EndUserAddress eua, octetstring apn, |
| 238 | octetstring sgsn_ip_sign, octetstring sgsn_ip_data, |
Harald Welte | ed7a177 | 2017-08-09 20:26:20 +0200 | [diff] [blame] | 239 | octetstring msisdn, template ProtConfigOptions pco := omit) := { |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 240 | createPDPContextRequest := { |
| 241 | imsi := ts_Imsi(imsi), |
| 242 | rai := omit, |
| 243 | recovery := ts_Recovery(restart_ctr), |
| 244 | selectionMode := { |
| 245 | type_gtpc := '0F'O, |
| 246 | selectModeValue := '00'B, |
| 247 | spare := '111111'B |
| 248 | }, |
| 249 | teidDataI := { |
| 250 | type_gtpc := '00'O, |
| 251 | teidDataI := teid_data |
| 252 | }, |
| 253 | teidControlPlane := { |
| 254 | type_gtpc := '00'O, |
| 255 | teidControlPlane := teid_ctrl |
| 256 | }, |
| 257 | nsapi := { |
| 258 | type_gtpc := '00'O, |
| 259 | nsapi := nsapi, |
| 260 | unused := '0000'B |
| 261 | }, |
| 262 | linked_nsapi := omit, |
| 263 | charging_char := omit, |
| 264 | trace_ref := omit, |
| 265 | trace_type := omit, |
| 266 | endUserAddress := eua, |
| 267 | accessPointName := ts_APN(apn), |
Harald Welte | ed7a177 | 2017-08-09 20:26:20 +0200 | [diff] [blame] | 268 | protConfigOptions := pco, |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 269 | sgsn_addr_signalling := ts_GsnAddr(sgsn_ip_sign), |
| 270 | sgsn_addr_traffic := ts_GsnAddr(sgsn_ip_data), |
| 271 | msisdn := ts_Msisdn(msisdn), |
| 272 | qualityOfServiceProfile := ts_QosDefault, |
| 273 | tft := omit, |
| 274 | triggerId := omit, |
| 275 | omcId := omit, |
| 276 | commonFlags := omit, |
| 277 | aPN_Restriction := omit, |
| 278 | ratType := omit, |
| 279 | userLocationInformation := omit, |
| 280 | mS_TimeZone := omit, |
| 281 | imeisv := omit, |
| 282 | camelChargingInformationContainer := omit, |
| 283 | additionalTraceInfo := omit, |
| 284 | correlationID := omit, |
| 285 | evolvedAllocationRetentionPriorityI := omit, |
| 286 | extendedCommonFlags := omit, |
| 287 | userCSGInformation := omit, |
| 288 | aPN_AMBR := omit, |
| 289 | signallingPriorityIndication := omit, |
| 290 | cN_OperatorSelectionEntity := omit, |
| 291 | private_extension_gtpc := omit |
| 292 | } |
| 293 | } |
| 294 | |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 295 | template Gtp1cUnitdata ts_GTPC_CreatePDP(GtpPeer peer, uint16_t seq, hexstring imsi, |
| 296 | OCT1 restart_ctr, OCT4 teid_data, |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 297 | OCT4 teid_ctrl, BIT4 nsapi, EndUserAddress eua, |
| 298 | octetstring apn, octetstring sgsn_ip_sign, |
Harald Welte | ed7a177 | 2017-08-09 20:26:20 +0200 | [diff] [blame] | 299 | octetstring sgsn_ip_data, octetstring msisdn, |
| 300 | template ProtConfigOptions pco := omit) := { |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 301 | peer := peer, |
| 302 | gtpc := ts_GTP1C_PDU(createPDPContextRequest, '00000000'O, |
| 303 | valueof(ts_CreatePdpPDU(imsi, restart_ctr, teid_data, teid_ctrl, |
| 304 | nsapi, eua, apn, sgsn_ip_sign, |
Harald Welte | ed7a177 | 2017-08-09 20:26:20 +0200 | [diff] [blame] | 305 | sgsn_ip_data, msisdn, pco)), seq) |
| 306 | } |
| 307 | |
| 308 | template ProtConfigOptions ts_PCO := { |
| 309 | type_gtpc := '84'O, |
| 310 | lengthf := 0, |
| 311 | configProtocol := '000'B, |
| 312 | spare := '0000'B, |
| 313 | extension0 := '1'B, |
| 314 | protocols := {} |
| 315 | } |
| 316 | |
| 317 | |
| 318 | template ProtConfigOptions ts_PCO_IPv6_DNS modifies ts_PCO := { |
| 319 | protocols := { |
| 320 | { protocolID := '0003'O, lengthProtoID := 0, protoIDContents := ''O } |
| 321 | } |
| 322 | } |
| 323 | |
| 324 | template ProtConfigOptions ts_PCO_IPv4_DNS_IPCP modifies ts_PCO := { |
| 325 | protocols := { |
| 326 | { protocolID := '8021'O, lengthProtoID := 16, protoIDContents := '01000010810600000000830600000000'O } |
| 327 | } |
| 328 | } |
| 329 | |
| 330 | template ProtConfigOptions ts_PCO_IPv4_DNS_CONT modifies ts_PCO := { |
| 331 | protocols := { |
| 332 | { protocolID := '000d'O, lengthProtoID := 0, protoIDContents := ''O } |
| 333 | } |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 334 | } |
| 335 | |
Harald Welte | f1e0d5a | 2017-08-05 08:51:22 +0200 | [diff] [blame] | 336 | function f_teardown_ind_IE(in template BIT1 ind) return template TearDownInd { |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 337 | /* |
| 338 | if (not isvalue(ind)) { |
Harald Welte | f1e0d5a | 2017-08-05 08:51:22 +0200 | [diff] [blame] | 339 | return omit; |
| 340 | } |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 341 | */ |
Harald Welte | f1e0d5a | 2017-08-05 08:51:22 +0200 | [diff] [blame] | 342 | var TearDownInd ret := { |
| 343 | type_gtpc := '13'O, |
| 344 | tdInd := valueof(ind), |
| 345 | spare:= '0000000'B |
| 346 | } |
| 347 | return ret; |
| 348 | } |
| 349 | |
| 350 | template GTPC_PDUs ts_DeletePdpPDU(BIT4 nsapi, template BIT1 teardown_ind) := { |
| 351 | deletePDPContextRequest := { |
| 352 | cause := omit, |
| 353 | tearDownIndicator := f_teardown_ind_IE(teardown_ind), |
| 354 | nsapi := { |
| 355 | type_gtpc := '14'O, |
| 356 | nsapi := nsapi, |
| 357 | unused := '0000'B |
| 358 | }, |
| 359 | protConfigOptions := omit, |
| 360 | userLocationInformation := omit, |
| 361 | mS_TimeZone := omit, |
| 362 | extendedCommonFlags := omit, |
| 363 | uLI_Timestamp := omit, |
| 364 | private_extension_gtpc := omit |
| 365 | } |
| 366 | } |
| 367 | |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 368 | template Gtp1cUnitdata ts_GTPC_DeletePDP(GtpPeer peer, uint16_t seq, OCT4 teid, |
| 369 | BIT4 nsapi, template BIT1 teardown_ind) := { |
Harald Welte | f1e0d5a | 2017-08-05 08:51:22 +0200 | [diff] [blame] | 370 | peer := peer, |
| 371 | gtpc := ts_GTP1C_PDU(deletePDPContextRequest, teid, |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 372 | valueof(ts_DeletePdpPDU(nsapi, teardown_ind)), seq) |
Harald Welte | f1e0d5a | 2017-08-05 08:51:22 +0200 | [diff] [blame] | 373 | } |
| 374 | |
| 375 | |
Harald Welte | 3af8948 | 2017-08-04 16:20:23 +0200 | [diff] [blame] | 376 | /* GTP-U */ |
| 377 | |
Harald Welte | 231b941 | 2017-08-09 17:16:31 +0200 | [diff] [blame] | 378 | template PDU_GTPU tr_GTP1U_PDU(template OCT1 msg_type, template OCT4 teid, template GTPU_IEs ies := ?) := { |
Harald Welte | 3af8948 | 2017-08-04 16:20:23 +0200 | [diff] [blame] | 379 | pn_bit := ?, |
| 380 | s_bit := ?, |
| 381 | e_bit := ?, |
| 382 | spare := ?, |
| 383 | /* Protocol Type flag (PT) shall be set to '1' in GTP */ |
| 384 | pt := '1'B, |
| 385 | /* Version shall be set to decimal 1 ('001'). */ |
| 386 | version := '001'B, |
| 387 | messageType := msg_type, |
| 388 | lengthf := ?, |
| 389 | teid := teid, |
| 390 | opt_part := *, |
Harald Welte | 231b941 | 2017-08-09 17:16:31 +0200 | [diff] [blame] | 391 | gtpu_IEs := ies |
Harald Welte | 3af8948 | 2017-08-04 16:20:23 +0200 | [diff] [blame] | 392 | } |
| 393 | |
| 394 | /* generalized GTP-U send template */ |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 395 | 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] | 396 | /* N-PDU Number flag (PN): the GTP-U header contains a meaningful N-PDU Number field if the PN |
| 397 | * flag is set to 1. */ |
| 398 | pn_bit := '0'B, /* we assume the encoder overwrites this if an optional part is given */ |
| 399 | /* If the Sequence Number flag (S) is set to '1' the sequence number field is present and |
| 400 | * meaningful otherwise it is set to '0'. For GTP-U messages Echo Request, Echo Response, |
| 401 | * 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] | 402 | 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] | 403 | /* Extension header presence */ |
| 404 | e_bit := '0'B, |
| 405 | spare := '0'B, |
| 406 | /* Protocol Type flag (PT) shall be set to '1' in GTP */ |
| 407 | pt := '1'B, |
| 408 | /* Version shall be set to decimal 1 ('001'). */ |
| 409 | version := '001'B, |
| 410 | messageType := msg_type, |
| 411 | lengthf := 0, /* we assume encoder overwrites this */ |
| 412 | teid := teid, |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 413 | opt_part := { |
| 414 | sequenceNumber := int2oct(seq, 2), |
| 415 | npduNumber := '00'O, |
| 416 | nextExtHeader := '00'O, |
| 417 | gTPU_extensionHeader_List := omit |
| 418 | }, |
Harald Welte | 3af8948 | 2017-08-04 16:20:23 +0200 | [diff] [blame] | 419 | gtpu_IEs := ies |
| 420 | } |
| 421 | |
| 422 | template Gtp1uUnitdata tr_GTPU_MsgType(template GtpPeer peer, template OCT1 msg_type, template OCT4 teid) := { |
| 423 | peer := peer, |
| 424 | gtpu := tr_GTP1U_PDU(msg_type, teid) |
| 425 | } |
| 426 | |
| 427 | |
Harald Welte | 231b941 | 2017-08-09 17:16:31 +0200 | [diff] [blame] | 428 | /* template matching reception of GTP-U echo-request */ |
Harald Welte | 3af8948 | 2017-08-04 16:20:23 +0200 | [diff] [blame] | 429 | template Gtp1uUnitdata tr_GTPU_PING(template GtpPeer peer) := tr_GTPU_MsgType(peer, echoRequest, '00000000'O); |
| 430 | |
Harald Welte | 231b941 | 2017-08-09 17:16:31 +0200 | [diff] [blame] | 431 | /* template matching reception of GTP-U GPDU */ |
| 432 | template GTPU_IEs t_GPDU(template octetstring data) := { |
| 433 | g_PDU_IEs := { |
| 434 | data := data |
| 435 | } |
| 436 | } |
| 437 | template Gtp1uUnitdata tr_GTPU_GPDU(template GtpPeer peer, template OCT4 teid, template octetstring data := ?) := { |
| 438 | peer := peer, |
| 439 | gtpu := tr_GTP1U_PDU('FF'O, teid, t_GPDU(data)) |
| 440 | } |
| 441 | |
Harald Welte | 3af8948 | 2017-08-04 16:20:23 +0200 | [diff] [blame] | 442 | template GTPU_IEs ts_UEchoRespPDU(OCT1 restart_counter) := { |
| 443 | echoResponse_IEs := { |
| 444 | recovery_gtpu := { |
| 445 | type_gtpu := '00'O, /* we assume encoder fixes? */ |
| 446 | restartCounter := restart_counter |
| 447 | }, |
| 448 | private_extension_gtpu := omit |
| 449 | } |
| 450 | } |
| 451 | |
| 452 | /* master template for sending a GTP-U echo response */ |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 453 | 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] | 454 | peer := peer, |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 455 | 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] | 456 | } |
| 457 | |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 458 | /* master template for sending a GTP-U user plane data */ |
| 459 | template Gtp1uUnitdata ts_GTP1U_GPDU(GtpPeer peer, uint16_t seq, OCT4 teid, octetstring data) := { |
| 460 | peer := peer, |
| 461 | gtpu := ts_GTP1U_PDU('FF'O, seq, teid, { g_PDU_IEs := { data := data }}) |
| 462 | } |
Harald Welte | 3af8948 | 2017-08-04 16:20:23 +0200 | [diff] [blame] | 463 | |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 464 | /* Altstep implementing responses to any incoming echo requests */ |
| 465 | altstep pingpong() runs on GT_CT { |
| 466 | var Gtp1cUnitdata ud; |
Harald Welte | 3af8948 | 2017-08-04 16:20:23 +0200 | [diff] [blame] | 467 | var Gtp1uUnitdata udu; |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 468 | [] GTPC.receive(tr_GTPC_PING(?)) -> value ud { |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 469 | var uint16_t seq := oct2int(ud.gtpc.opt_part.sequenceNumber); |
| 470 | GTPC.send(ts_GTPC_PONG(ud.peer, seq, '00'O)); |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 471 | repeat; |
| 472 | }; |
Harald Welte | 3af8948 | 2017-08-04 16:20:23 +0200 | [diff] [blame] | 473 | [] GTPU.receive(tr_GTPU_PING(?)) -> value udu { |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 474 | var uint16_t seq := oct2int(udu.gtpu.opt_part.sequenceNumber); |
| 475 | GTPU.send(ts_GTPU_PONG(udu.peer, seq, '00'O)); |
Harald Welte | 3af8948 | 2017-08-04 16:20:23 +0200 | [diff] [blame] | 476 | }; |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 477 | [] T_default.timeout { setverdict(fail); }; |
| 478 | } |
| 479 | |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 480 | /* 'internet' in DNS encoding */ |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 481 | template octetstring t_ApnInternet := '08696E7465726E6574'O; |
| 482 | |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 483 | /* return random integer between 0 and max */ |
| 484 | function f_rnd_int(integer max) return integer { |
| 485 | return float2int(rnd()*int2float(max)); |
| 486 | } |
| 487 | |
| 488 | /* return random NSAPI */ |
| 489 | function f_rnd_nsapi() return BIT4 { |
| 490 | return int2bit(f_rnd_int(16), 4); |
| 491 | } |
| 492 | |
| 493 | /* return random TEI[DC] */ |
| 494 | function f_rnd_tei() return OCT4 { |
| 495 | return int2oct(f_rnd_int(4294967296), 4); |
| 496 | } |
| 497 | |
| 498 | /* define an (internal) representation of a PDP context */ |
| 499 | template PdpContext t_DefinePDP(hexstring imsi, octetstring msisdn, octetstring apn, |
| 500 | EndUserAddress eua) := { |
| 501 | imsi := imsi, |
| 502 | msisdn := msisdn, |
| 503 | nsapi := f_rnd_nsapi(), |
| 504 | apn := apn, |
Harald Welte | ed7a177 | 2017-08-09 20:26:20 +0200 | [diff] [blame] | 505 | pco_req := omit, |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 506 | eua := eua, |
| 507 | teid := f_rnd_tei(), |
Harald Welte | 5438b9d | 2017-08-13 13:27:48 +0200 | [diff] [blame^] | 508 | teic := f_rnd_tei() |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 509 | } |
| 510 | |
| 511 | /* send GTP-C for a given context and increment sequence number */ |
| 512 | function f_send_gtpc(inout PdpContext ctx, in template Gtp1cUnitdata data) runs on GT_CT { |
| 513 | GTPC.send(data); |
Harald Welte | 5438b9d | 2017-08-13 13:27:48 +0200 | [diff] [blame^] | 514 | g_c_seq_nr := g_c_seq_nr + 1; |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 515 | } |
| 516 | |
| 517 | /* send GTP-U for a given context and increment sequence number */ |
Harald Welte | 231b941 | 2017-08-09 17:16:31 +0200 | [diff] [blame] | 518 | function f_send_gtpu(inout PdpContext ctx, in octetstring data) runs on GT_CT { |
Harald Welte | 5438b9d | 2017-08-13 13:27:48 +0200 | [diff] [blame^] | 519 | GTPU.send(ts_GTP1U_GPDU(g_peer_u, g_d_seq_nr, ctx.teid_remote, data)); |
| 520 | g_d_seq_nr := g_d_seq_nr + 1; |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 521 | } |
| 522 | |
| 523 | /* send a PDP context activation */ |
| 524 | function f_pdp_ctx_act(inout PdpContext ctx) runs on GT_CT { |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 525 | var Gtp1cUnitdata ud; |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 526 | var default d; |
| 527 | |
| 528 | log("sending CreatePDP"); |
Harald Welte | 5438b9d | 2017-08-13 13:27:48 +0200 | [diff] [blame^] | 529 | f_send_gtpc(ctx, ts_GTPC_CreatePDP(g_peer_c, g_c_seq_nr, ctx.imsi, g_restart_ctr, |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 530 | ctx.teid, ctx.teic, ctx.nsapi, ctx.eua, ctx.apn, |
Harald Welte | ed7a177 | 2017-08-09 20:26:20 +0200 | [diff] [blame] | 531 | g_sgsn_ip_c, g_sgsn_ip_u, ctx.msisdn, ctx.pco_req)); |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 532 | T_default.start; |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 533 | d := activate(pingpong()); |
| 534 | alt { |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 535 | [] GTPC.receive(tr_GTPC_MsgType(g_peer_c, createPDPContextResponse, ctx.teic)) -> value ud { |
| 536 | var CreatePDPContextResponse cpr := ud.gtpc.gtpc_pdu.createPDPContextResponse; |
| 537 | if (cpr.cause.causevalue == '80'O) { |
| 538 | ctx.teid_remote := cpr.teidDataI.teidDataI; |
| 539 | ctx.teic_remote := cpr.teidControlPlane.teidControlPlane; |
Harald Welte | 231b941 | 2017-08-09 17:16:31 +0200 | [diff] [blame] | 540 | ctx.eua := cpr.endUserAddress; |
Harald Welte | ed7a177 | 2017-08-09 20:26:20 +0200 | [diff] [blame] | 541 | ctx.pco_neg := cpr.protConfigOptions; |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 542 | setverdict(pass); |
| 543 | } else { |
| 544 | setverdict(fail); |
| 545 | } |
| 546 | } |
| 547 | } |
| 548 | deactivate(d); |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 549 | T_default.stop; |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 550 | } |
| 551 | |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 552 | 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] | 553 | var Gtp1cUnitdata ud; |
| 554 | var default d; |
| 555 | |
Harald Welte | 5438b9d | 2017-08-13 13:27:48 +0200 | [diff] [blame^] | 556 | f_send_gtpc(ctx, ts_GTPC_DeletePDP(g_peer_c, g_c_seq_nr, ctx.teic_remote, ctx.nsapi, teardown_ind)); |
Harald Welte | f1e0d5a | 2017-08-05 08:51:22 +0200 | [diff] [blame] | 557 | T_default.start; |
Harald Welte | f1e0d5a | 2017-08-05 08:51:22 +0200 | [diff] [blame] | 558 | d := activate(pingpong()); |
| 559 | alt { |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 560 | [] 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] | 561 | if (ud.gtpc.gtpc_pdu.deletePDPContextResponse.cause.causevalue == '80'O) { |
| 562 | setverdict(pass); |
| 563 | } else { |
| 564 | setverdict(fail); |
| 565 | } |
| 566 | } |
| 567 | } |
| 568 | deactivate(d); |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 569 | T_default.stop; |
Harald Welte | f1e0d5a | 2017-08-05 08:51:22 +0200 | [diff] [blame] | 570 | } |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 571 | /* IPv6 router solicitation fe80::2 -> ff02::2 from 02:88:b5:1f:25:59 */ |
| 572 | const octetstring c_router_solicit := '6000000000103afffe800000000000000000000000000002ff02000000000000000000000000000285009f2b0000000001010288b51f2559'O; |
| 573 | /* IPv6 neighbor solicitation fe80::2 -> ff02::1:ff00:2 from 02:88:b5:1f:25:59 */ |
| 574 | const octetstring c_neigh_solicit:= '6000000000203afffe800000000000000000000000000002ff0200000000000000000001ff00000287009f9600000000fe80000000000000000000000000000201010288b51f2559'O; |
Harald Welte | f1e0d5a | 2017-08-05 08:51:22 +0200 | [diff] [blame] | 575 | |
Harald Welte | 231b941 | 2017-08-09 17:16:31 +0200 | [diff] [blame] | 576 | /* template to generate a 'Prefix Information' ICMPv6 option */ |
| 577 | template OptionField ts_ICMP6_OptPrefix(OCT16 prefix, INT1 prefix_len) := { |
| 578 | prefixInformation := { |
| 579 | typeField := 3, |
| 580 | lengthIndicator := 8, |
| 581 | prefixLength := prefix_len, |
| 582 | reserved1 := '000000'B, |
| 583 | a_Bit := '0'B, |
| 584 | l_Bit := '0'B, |
| 585 | validLifetime := oct2int('FFFFFFFF'O), |
| 586 | preferredLifetime := oct2int('FFFFFFFF'O), |
| 587 | reserved2 := '00000000'O, |
| 588 | prefix := prefix |
| 589 | } |
| 590 | } |
| 591 | |
| 592 | /* template for an ICMPv6 router solicitation */ |
| 593 | template PDU_ICMPv6 ts_ICMPv6_RS := { |
| 594 | routerSolicitation := { |
| 595 | typeField := 133, |
| 596 | code := 0, |
| 597 | checksum := '0000'O, |
| 598 | reserved := '00000000'O, |
| 599 | /* TODO: do we need 'Source link-layer address' ? */ |
| 600 | options := omit |
| 601 | } |
| 602 | } |
| 603 | |
| 604 | /* template for an ICMPv6 router advertisement */ |
| 605 | template PDU_ICMPv6 ts_ICMPv6_RA(OCT16 prefix, INT1 prefix_len) := { |
| 606 | routerAdvertisement := { |
| 607 | typeField := 134, |
| 608 | code := 0, |
| 609 | checksum := '0000'O, |
| 610 | curHopLimit := ?, |
| 611 | reserved := '000000'B, |
| 612 | o_Bit := '0'B, |
| 613 | m_Bit := '0'B, |
| 614 | routerLifetime := oct2int('FFFF'O), |
| 615 | reachableTime := oct2int('FFFFFFFF'O), |
| 616 | retransTimer := oct2int('FFFFFFFF'O), |
| 617 | options := { |
| 618 | ts_ICMP6_OptPrefix(prefix, prefix_len) |
| 619 | } |
| 620 | } |
| 621 | } |
| 622 | |
| 623 | template PDU_ICMPv6 ts_ICMPv6_NS(OCT16 target_addr) := { |
| 624 | neighborSolicitation := { |
| 625 | typeField := 135, |
| 626 | code := 0, |
| 627 | checksum := '0000'O, |
| 628 | reserved := '00000000'O, |
| 629 | targetAddress := target_addr, |
| 630 | /* TODO: do we need 'Source link-layer address' ? */ |
| 631 | options := omit |
| 632 | } |
| 633 | } |
| 634 | |
| 635 | /* derive ICMPv6 link-local address from lower 64bit of link_id */ |
| 636 | /* template for receiving/matching an ICMPv6 'Prefix Information' option */ |
| 637 | template OptionField tr_ICMP6_OptPrefix(template OCT16 prefix, template INT1 prefix_len) := { |
| 638 | prefixInformation := { |
| 639 | typeField := 3, |
| 640 | lengthIndicator := 4, |
| 641 | prefixLength := prefix_len, |
| 642 | reserved1 := ?, |
| 643 | a_Bit := ?, |
| 644 | l_Bit := ?, |
| 645 | validLifetime := ?, |
| 646 | preferredLifetime := ?, |
| 647 | reserved2 := ?, |
| 648 | prefix := prefix |
| 649 | } |
| 650 | } |
| 651 | |
| 652 | /* template for receiving/matching an ICMPv6 router advertisement */ |
| 653 | template PDU_ICMPv6 tr_ICMPv6_RA(template OCT16 prefix, template INT1 prefix_len) := { |
| 654 | routerAdvertisement := { |
| 655 | typeField := 134, |
| 656 | code := 0, |
| 657 | checksum := ?, |
| 658 | curHopLimit := ?, |
| 659 | reserved := ?, |
| 660 | o_Bit := '0'B, |
| 661 | m_Bit := '0'B, |
| 662 | routerLifetime := ?, |
| 663 | reachableTime := ?, |
| 664 | retransTimer := ?, |
| 665 | options := { |
| 666 | tr_ICMP6_OptPrefix(prefix, prefix_len) |
| 667 | } |
| 668 | } |
| 669 | } |
| 670 | |
| 671 | /* template to construct IPv6_packet from input arguments, ready for use in f_IPv6_enc() */ |
| 672 | template IPv6_packet ts_IP6(OCT16 srcaddr, OCT16 dstaddr, LIN1 nexthead, octetstring payload, LIN1 hlim := 255) := { |
| 673 | header := { |
| 674 | ver := 6, |
| 675 | trclass := 0, |
| 676 | flabel := 0, |
| 677 | plen := 0, |
| 678 | nexthead := nexthead, |
| 679 | hlim := hlim, |
| 680 | srcaddr := srcaddr, |
| 681 | dstaddr := dstaddr |
| 682 | }, |
| 683 | ext_headers := omit, |
| 684 | payload := payload |
| 685 | } |
| 686 | |
| 687 | function f_ipv6_link_local(in OCT16 link_id) return OCT16 { |
| 688 | return 'FE80000000000000'O & substr(link_id, 8, 8); |
| 689 | } |
| 690 | |
| 691 | /* Compute solicited-node multicast address as per RFC4291 2.7.1 */ |
| 692 | function f_ipv6_sol_node_mcast(in OCT16 addr) return OCT16 { |
| 693 | return 'FF0200000000000000000001FF'O & substr(addr, 13, 3); |
| 694 | } |
| 695 | |
| 696 | /* generate and encode ICMPv6 router solicitation */ |
| 697 | function f_gen_icmpv6_router_solicitation(in OCT16 link_id) return octetstring { |
| 698 | const OCT16 c_ip6_all_router_mcast := 'FF020000000000000000000000000002'O; |
| 699 | var OCT16 saddr := f_ipv6_link_local(link_id); |
| 700 | |
| 701 | var octetstring tmp; |
| 702 | tmp := f_enc_PDU_ICMPv6(valueof(ts_ICMPv6_RS), saddr, c_ip6_all_router_mcast); |
| 703 | var IPv6_packet ip6 := valueof(ts_IP6(saddr, c_ip6_all_router_mcast, 58, tmp)); |
| 704 | |
| 705 | return f_IPv6_enc(ip6); |
| 706 | } |
| 707 | |
| 708 | /* create ICMPv6 router solicitation deriving link-id from PDP Context EUA */ |
| 709 | function f_icmpv6_rs_for_pdp(in PdpContext ctx) return octetstring { |
| 710 | var OCT16 interface_id := ctx.eua.endUserAddress.endUserAddressIPv6.ipv6_address; |
| 711 | return f_gen_icmpv6_router_solicitation(interface_id); |
| 712 | } |
| 713 | |
| 714 | /* generate and encode ICMPv6 neighbor solicitation */ |
| 715 | function f_gen_icmpv6_neigh_solicit(in OCT16 saddr, in OCT16 daddr, in OCT16 tgt_addr) return octetstring { |
| 716 | var octetstring tmp; |
| 717 | tmp := f_enc_PDU_ICMPv6(valueof(ts_ICMPv6_NS(tgt_addr)), saddr, daddr); |
| 718 | var IPv6_packet ip6 := valueof(ts_IP6(saddr, daddr, 58, tmp)); |
| 719 | return f_IPv6_enc(ip6); |
| 720 | } |
| 721 | |
| 722 | /* generate and encode ICMPv6 neighbor solicitation for PDP Context */ |
| 723 | function f_gen_icmpv6_neigh_solicit_for_pdp(in PdpContext ctx) return octetstring { |
| 724 | var OCT16 interface_id := ctx.eua.endUserAddress.endUserAddressIPv6.ipv6_address; |
| 725 | var OCT16 link_local := f_ipv6_link_local(interface_id); |
| 726 | var OCT16 daddr := f_ipv6_sol_node_mcast(link_local); |
| 727 | |
| 728 | return f_gen_icmpv6_neigh_solicit(link_local, daddr, link_local); |
| 729 | } |
| 730 | |
| 731 | /* wait for GGSN to send us an ICMPv6 router advertisement */ |
| 732 | function f_wait_rtr_adv(PdpContext ctx) runs on GT_CT { |
| 733 | var Gtp1uUnitdata ud; |
| 734 | T_default.start; |
| 735 | alt { |
| 736 | //'6???????????3aff'O |
| 737 | [] GTPU.receive(tr_GTPU_GPDU(g_peer_u, ?)) -> value ud { |
| 738 | var octetstring gpdu := ud.gtpu.gtpu_IEs.g_PDU_IEs.data; |
| 739 | var IPv6_packet ip6 := f_IPv6_dec(gpdu); |
| 740 | if (ip6.header.ver != 6 or ip6.header.nexthead != 58 or ip6.header.hlim != 255) { |
| 741 | repeat; |
| 742 | } |
| 743 | var PDU_ICMPv6 icmp6 := f_dec_PDU_ICMPv6(ip6.payload); |
| 744 | if (not match(icmp6, tr_ICMPv6_RA(?, 64))) { |
| 745 | repeat; |
| 746 | } |
| 747 | ctx.ip6_prefix := icmp6.routerAdvertisement.options[0].prefixInformation.prefix; |
| 748 | log("RA with /64 prefix ", ctx.ip6_prefix); |
| 749 | } |
| 750 | [] GTPU.receive(tr_GTPU_GPDU(?, ?)) { repeat; } |
| 751 | [] GTPU.receive { setverdict(fail); } |
| 752 | [] T_default.timeout { setverdict(fail); } |
| 753 | } |
| 754 | T_default.stop; |
| 755 | } |
| 756 | |
Harald Welte | ed7a177 | 2017-08-09 20:26:20 +0200 | [diff] [blame] | 757 | testcase TC_pdp6_act_deact() runs on GT_CT { |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 758 | f_init(); |
Harald Welte | 231b941 | 2017-08-09 17:16:31 +0200 | [diff] [blame] | 759 | |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 760 | var PdpContext ctx := valueof(t_DefinePDP('262420123456789'H, '1234'O, valueof(t_ApnInternet), valueof(t_EuaIPv6Dyn))); |
| 761 | f_pdp_ctx_act(ctx); |
Harald Welte | ed7a177 | 2017-08-09 20:26:20 +0200 | [diff] [blame] | 762 | f_pdp_ctx_del(ctx, '1'B); |
| 763 | } |
| 764 | |
| 765 | testcase TC_pdp6_act_deact_pcodns() runs on GT_CT { |
| 766 | f_init(); |
| 767 | |
| 768 | var PdpContext ctx := valueof(t_DefinePDP('262420123456789'H, '1234'O, valueof(t_ApnInternet), valueof(t_EuaIPv6Dyn))); |
| 769 | ctx.pco_req := valueof(ts_PCO_IPv6_DNS); |
| 770 | f_pdp_ctx_act(ctx); |
| 771 | f_pdp_ctx_del(ctx, '1'B); |
| 772 | } |
| 773 | |
| 774 | testcase TC_pdp6_act_deact_icmp6() runs on GT_CT { |
| 775 | f_init(); |
| 776 | |
| 777 | var PdpContext ctx := valueof(t_DefinePDP('262420123456789'H, '1234'O, valueof(t_ApnInternet), valueof(t_EuaIPv6Dyn))); |
| 778 | ctx.pco_req := valueof(ts_PCO_IPv6_DNS); |
| 779 | f_pdp_ctx_act(ctx); |
Harald Welte | 231b941 | 2017-08-09 17:16:31 +0200 | [diff] [blame] | 780 | |
| 781 | //f_send_gtpu(ctx, c_router_solicit); |
| 782 | //f_send_gtpu(ctx, c_neigh_solicit); |
| 783 | |
| 784 | f_send_gtpu(ctx, f_icmpv6_rs_for_pdp(ctx)); |
| 785 | f_wait_rtr_adv(ctx); |
| 786 | f_send_gtpu(ctx, f_gen_icmpv6_neigh_solicit_for_pdp(ctx)); |
| 787 | |
Harald Welte | 811651e | 2017-08-05 15:25:06 +0200 | [diff] [blame] | 788 | f_pdp_ctx_del(ctx, '1'B); |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 789 | } |
| 790 | |
Harald Welte | ed7a177 | 2017-08-09 20:26:20 +0200 | [diff] [blame] | 791 | testcase TC_pdp4_act_deact() runs on GT_CT { |
| 792 | f_init(); |
| 793 | var PdpContext ctx := valueof(t_DefinePDP('262420123456789'H, '1234'O, valueof(t_ApnInternet), valueof(t_EuaIPv4Dyn))); |
| 794 | f_pdp_ctx_act(ctx); |
| 795 | f_pdp_ctx_del(ctx, '1'B); |
| 796 | } |
| 797 | |
| 798 | testcase TC_pdp4_act_deact_ipcp() runs on GT_CT { |
| 799 | f_init(); |
| 800 | var PdpContext ctx := valueof(t_DefinePDP('262420123456789'H, '1234'O, valueof(t_ApnInternet), valueof(t_EuaIPv4Dyn))); |
| 801 | f_pdp_ctx_act(ctx); |
| 802 | f_pdp_ctx_del(ctx, '1'B); |
| 803 | } |
| 804 | |
| 805 | testcase TC_pdp4_act_deact_pcodns() runs on GT_CT { |
| 806 | f_init(); |
| 807 | var PdpContext ctx := valueof(t_DefinePDP('262420123456789'H, '1234'O, valueof(t_ApnInternet), valueof(t_EuaIPv4Dyn))); |
| 808 | f_pdp_ctx_act(ctx); |
| 809 | f_pdp_ctx_del(ctx, '1'B); |
| 810 | } |
| 811 | |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 812 | control { |
Harald Welte | ed7a177 | 2017-08-09 20:26:20 +0200 | [diff] [blame] | 813 | execute(TC_pdp4_act_deact()); |
| 814 | execute(TC_pdp4_act_deact_ipcp()); |
| 815 | execute(TC_pdp4_act_deact_pcodns()); |
| 816 | |
| 817 | execute(TC_pdp6_act_deact()); |
| 818 | execute(TC_pdp6_act_deact_pcodns()); |
| 819 | execute(TC_pdp6_act_deact_icmp6()); |
Harald Welte | 94ade36 | 2017-08-04 00:36:55 +0200 | [diff] [blame] | 820 | } |
Harald Welte | 379d45a | 2017-08-03 09:55:15 +0200 | [diff] [blame] | 821 | } |