Harald Welte | 77847ad | 2015-10-06 22:07:04 +0200 | [diff] [blame] | 1 | /* hnb-gw specific code for RANAP */ |
| 2 | |
| 3 | /* (C) 2015 by Harald Welte <laforge@gnumonks.org> |
| 4 | * All Rights Reserved |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU Affero General Public License as published by |
| 8 | * the Free Software Foundation; either version 3 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU Affero General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Affero General Public License |
| 17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 18 | * |
| 19 | */ |
| 20 | |
| 21 | |
| 22 | |
Harald Welte | 350814a | 2015-09-10 22:32:15 +0200 | [diff] [blame] | 23 | #include <osmocom/core/msgb.h> |
| 24 | #include <osmocom/core/utils.h> |
Harald Welte | 80401ad | 2015-09-11 19:48:06 +0200 | [diff] [blame] | 25 | #include <osmocom/gsm/gsm48.h> |
Harald Welte | 350814a | 2015-09-10 22:32:15 +0200 | [diff] [blame] | 26 | |
| 27 | #include <unistd.h> |
| 28 | #include <errno.h> |
| 29 | #include <string.h> |
| 30 | |
| 31 | #include "asn1helpers.h" |
| 32 | |
| 33 | #include "hnbgw.h" |
Harald Welte | e2e5d4d | 2015-09-10 23:49:45 +0200 | [diff] [blame] | 34 | #include "hnbgw_rua.h" |
Harald Welte | 350814a | 2015-09-10 22:32:15 +0200 | [diff] [blame] | 35 | //#include "ranap_common.h" |
| 36 | |
| 37 | #include "ranap/RANAP_RANAP-PDU.h" |
| 38 | #include "ranap/RANAP_ResetAcknowledge.h" |
| 39 | #include "ranap/RANAP_Reset.h" |
| 40 | #include "ranap/RANAP_ProtocolIE-ID.h" |
| 41 | #include "ranap/RANAP_Cause.h" |
| 42 | #include "ranap/RANAP_CN-DomainIndicator.h" |
| 43 | #include "ranap/RANAP_GlobalRNC-ID.h" |
| 44 | #include "ranap/RANAP_CriticalityDiagnostics.h" |
| 45 | |
Harald Welte | 350814a | 2015-09-10 22:32:15 +0200 | [diff] [blame] | 46 | /*********************************************************************** |
| 47 | * BEGIN auto-generated copy+pasted |
| 48 | ***********************************************************************/ |
| 49 | |
| 50 | /* this is copy+pasted from the asn1tostruct generated code that doesn't |
| 51 | * compile as a whole */ |
| 52 | |
| 53 | #define RANAP_DEBUG(x, args ...) DEBUGP(0, x, ## args) |
| 54 | |
| 55 | extern int asn1_xer_print; |
| 56 | |
| 57 | struct msgb *ranap_generate_successful_outcome( |
| 58 | e_RANAP_ProcedureCode procedureCode, |
| 59 | RANAP_Criticality_t criticality, |
| 60 | asn_TYPE_descriptor_t * td, |
| 61 | void *sptr); |
| 62 | |
| 63 | RANAP_IE_t *ranap_new_ie(RANAP_ProtocolIE_ID_t id, RANAP_Criticality_t criticality, |
| 64 | asn_TYPE_descriptor_t *type, void *sptr); |
| 65 | |
| 66 | #define RESETIES_RANAP_GLOBALRNC_ID_PRESENT (1 << 0) |
| 67 | |
| 68 | typedef struct RANAP_ResetIEs_s { |
| 69 | uint16_t presenceMask; |
| 70 | RANAP_Cause_t cause; |
| 71 | RANAP_CN_DomainIndicator_t cN_DomainIndicator; |
| 72 | RANAP_GlobalRNC_ID_t globalRNC_ID; ///< Optional field |
| 73 | } RANAP_ResetIEs_t; |
| 74 | |
| 75 | #define RESETACKNOWLEDGEIES_RANAP_CRITICALITYDIAGNOSTICS_PRESENT (1 << 0) |
| 76 | #define RESETACKNOWLEDGEIES_RANAP_GLOBALRNC_ID_PRESENT (1 << 1) |
| 77 | |
| 78 | typedef struct RANAP_ResetAcknowledgeIEs_s { |
| 79 | uint16_t presenceMask; |
| 80 | RANAP_CN_DomainIndicator_t cN_DomainIndicator; |
| 81 | RANAP_CriticalityDiagnostics_t criticalityDiagnostics; ///< Optional field |
| 82 | RANAP_GlobalRNC_ID_t globalRNC_ID; ///< Optional field |
| 83 | } RANAP_ResetAcknowledgeIEs_t; |
| 84 | |
| 85 | int ranap_decode_reseties( |
| 86 | RANAP_ResetIEs_t *resetIEs, |
| 87 | ANY_t *any_p) { |
| 88 | |
| 89 | RANAP_Reset_t reset; |
| 90 | RANAP_Reset_t *reset_p = &reset; |
| 91 | int i, decoded = 0; |
| 92 | int tempDecoded = 0; |
| 93 | assert(any_p != NULL); |
| 94 | assert(resetIEs != NULL); |
| 95 | |
| 96 | RANAP_DEBUG("Decoding message RANAP_ResetIEs (%s:%d)\n", __FILE__, __LINE__); |
| 97 | |
| 98 | ANY_to_type_aper(any_p, &asn_DEF_RANAP_Reset, (void**)&reset_p); |
| 99 | |
| 100 | for (i = 0; i < reset_p->reset_ies.list.count; i++) { |
| 101 | RANAP_IE_t *ie_p; |
| 102 | ie_p = reset_p->reset_ies.list.array[i]; |
| 103 | switch(ie_p->id) { |
| 104 | case RANAP_ProtocolIE_ID_id_Cause: |
| 105 | { |
| 106 | RANAP_Cause_t ranaP_Cause; |
| 107 | RANAP_Cause_t *ranaP_Cause_p = &ranaP_Cause; |
| 108 | tempDecoded = ANY_to_type_aper(&ie_p->value, &asn_DEF_RANAP_Cause, (void**)&ranaP_Cause_p); |
| 109 | if (tempDecoded < 0) { |
| 110 | RANAP_DEBUG("Decoding of IE cause failed\n"); |
| 111 | return -1; |
| 112 | } |
| 113 | decoded += tempDecoded; |
| 114 | if (asn1_xer_print) |
| 115 | xer_fprint(stdout, &asn_DEF_RANAP_Cause, ranaP_Cause_p); |
| 116 | memcpy(&resetIEs->cause, ranaP_Cause_p, sizeof(RANAP_Cause_t)); |
| 117 | } break; |
| 118 | case RANAP_ProtocolIE_ID_id_CN_DomainIndicator: |
| 119 | { |
| 120 | RANAP_CN_DomainIndicator_t ranaP_CNDomainIndicator; |
| 121 | RANAP_CN_DomainIndicator_t *ranaP_CNDomainIndicator_p = &ranaP_CNDomainIndicator; |
| 122 | tempDecoded = ANY_to_type_aper(&ie_p->value, &asn_DEF_RANAP_CN_DomainIndicator, (void**)&ranaP_CNDomainIndicator_p); |
| 123 | if (tempDecoded < 0) { |
| 124 | RANAP_DEBUG("Decoding of IE cN_DomainIndicator failed\n"); |
| 125 | return -1; |
| 126 | } |
| 127 | decoded += tempDecoded; |
| 128 | if (asn1_xer_print) |
| 129 | xer_fprint(stdout, &asn_DEF_RANAP_CN_DomainIndicator, ranaP_CNDomainIndicator_p); |
| 130 | memcpy(&resetIEs->cN_DomainIndicator, ranaP_CNDomainIndicator_p, sizeof(RANAP_CN_DomainIndicator_t)); |
| 131 | } break; |
| 132 | /* Optional field */ |
| 133 | case RANAP_ProtocolIE_ID_id_GlobalRNC_ID: |
| 134 | { |
| 135 | #if 0 |
| 136 | RANAP_GlobalRNC_ID_t ranaP_GlobalRNCID; |
| 137 | RANAP_GlobalRNC_ID_t *ranaP_GlobalRNCID_p = &ranaP_GlobalRNCID; |
| 138 | resetIEs->presenceMask |= RESETIES_RANAP_GLOBALRNC_ID_PRESENT; |
| 139 | tempDecoded = ANY_to_type_aper(&ie_p->value, &asn_DEF_RANAP_GlobalRNC_ID, (void**)&ranaP_GlobalRNCID_p); |
| 140 | if (tempDecoded < 0) { |
| 141 | RANAP_DEBUG("Decoding of IE globalRNC_ID failed\n"); |
| 142 | return -1; |
| 143 | } |
| 144 | decoded += tempDecoded; |
| 145 | if (asn1_xer_print) |
| 146 | xer_fprint(stdout, &asn_DEF_RANAP_GlobalRNC_ID, ranaP_GlobalRNCID_p); |
| 147 | memcpy(&resetIEs->globalRNC_ID, ranaP_GlobalRNCID_p, sizeof(RANAP_GlobalRNC_ID_t)); |
| 148 | #endif |
| 149 | } break; |
| 150 | default: |
| 151 | RANAP_DEBUG("Unknown protocol IE id (%d) for message reseties\n", (int)ie_p->id); |
| 152 | return -1; |
| 153 | } |
| 154 | } |
| 155 | return decoded; |
| 156 | } |
| 157 | |
| 158 | int ranap_encode_resetacknowledgeies( |
| 159 | RANAP_ResetAcknowledge_t *resetAcknowledge, |
| 160 | RANAP_ResetAcknowledgeIEs_t *resetAcknowledgeIEs) { |
| 161 | |
| 162 | RANAP_IE_t *ie; |
| 163 | |
| 164 | if ((ie = ranap_new_ie(RANAP_ProtocolIE_ID_id_CN_DomainIndicator, |
| 165 | RANAP_Criticality_reject, |
| 166 | &asn_DEF_RANAP_CN_DomainIndicator, |
| 167 | &resetAcknowledgeIEs->cN_DomainIndicator)) == NULL) { |
| 168 | return -1; |
| 169 | } |
| 170 | ASN_SEQUENCE_ADD(&resetAcknowledge->resetAcknowledge_ies.list, ie); |
| 171 | |
| 172 | /* Optional field */ |
| 173 | if ((resetAcknowledgeIEs->presenceMask & RESETACKNOWLEDGEIES_RANAP_CRITICALITYDIAGNOSTICS_PRESENT) |
| 174 | == RESETACKNOWLEDGEIES_RANAP_CRITICALITYDIAGNOSTICS_PRESENT) { |
| 175 | if ((ie = ranap_new_ie(RANAP_ProtocolIE_ID_id_CriticalityDiagnostics, |
| 176 | RANAP_Criticality_ignore, |
| 177 | &asn_DEF_RANAP_CriticalityDiagnostics, |
| 178 | &resetAcknowledgeIEs->criticalityDiagnostics)) == NULL) { |
| 179 | return -1; |
| 180 | } |
| 181 | ASN_SEQUENCE_ADD(&resetAcknowledge->resetAcknowledge_ies.list, ie); |
| 182 | } |
| 183 | |
| 184 | /* Optional field */ |
| 185 | if ((resetAcknowledgeIEs->presenceMask & RESETACKNOWLEDGEIES_RANAP_GLOBALRNC_ID_PRESENT) |
| 186 | == RESETACKNOWLEDGEIES_RANAP_GLOBALRNC_ID_PRESENT) { |
| 187 | if ((ie = ranap_new_ie(RANAP_ProtocolIE_ID_id_GlobalRNC_ID, |
| 188 | RANAP_Criticality_ignore, |
| 189 | &asn_DEF_RANAP_GlobalRNC_ID, |
| 190 | &resetAcknowledgeIEs->globalRNC_ID)) == NULL) { |
| 191 | return -1; |
| 192 | } |
| 193 | ASN_SEQUENCE_ADD(&resetAcknowledge->resetAcknowledge_ies.list, ie); |
| 194 | } |
| 195 | |
| 196 | return 0; |
| 197 | } |
| 198 | |
Harald Welte | cc27beb | 2015-09-11 18:45:39 +0200 | [diff] [blame] | 199 | #include "ranap/RANAP_InitialUE-Message.h" |
| 200 | #include "ranap/RANAP_CN-DomainIndicator.h" |
| 201 | #include "ranap/RANAP_LAI.h" |
| 202 | #include "ranap/RANAP_SAI.h" |
| 203 | #include "ranap/RANAP_NAS-PDU.h" |
| 204 | #include "ranap/RANAP_IuSignallingConnectionIdentifier.h" |
| 205 | #include "ranap/RANAP_GlobalCN-ID.h" |
| 206 | |
| 207 | typedef struct RANAP_InitialUE_MessageIEs_s { |
| 208 | RANAP_CN_DomainIndicator_t cN_DomainIndicator; |
| 209 | RANAP_LAI_t lai; |
| 210 | RANAP_SAI_t sai; |
| 211 | RANAP_NAS_PDU_t nas_pdu; |
| 212 | RANAP_IuSignallingConnectionIdentifier_t iuSigConId; |
| 213 | RANAP_GlobalRNC_ID_t globalRNC_ID; |
| 214 | } RANAP_InitialUE_MessageIEs_t; |
| 215 | |
| 216 | int ranap_decode_initialue_messageies( |
| 217 | RANAP_InitialUE_MessageIEs_t *initialUE_MessageIEs, |
| 218 | ANY_t *any_p) { |
| 219 | |
| 220 | RANAP_InitialUE_Message_t initialUE_Message; |
| 221 | RANAP_InitialUE_Message_t *initialUE_Message_p = &initialUE_Message; |
| 222 | int i, decoded = 0; |
| 223 | int tempDecoded = 0; |
| 224 | assert(any_p != NULL); |
| 225 | assert(initialUE_MessageIEs != NULL); |
| 226 | |
| 227 | RANAP_DEBUG("Decoding message RANAP_InitialUE_MessageIEs (%s:%d)\n", __FILE__, __LINE__); |
| 228 | |
| 229 | ANY_to_type_aper(any_p, &asn_DEF_RANAP_InitialUE_Message, (void**)&initialUE_Message_p); |
| 230 | |
| 231 | for (i = 0; i < initialUE_Message_p->initialUE_Message_ies.list.count; i++) { |
| 232 | RANAP_IE_t *ie_p; |
| 233 | ie_p = initialUE_Message_p->initialUE_Message_ies.list.array[i]; |
| 234 | switch(ie_p->id) { |
| 235 | case RANAP_ProtocolIE_ID_id_CN_DomainIndicator: |
| 236 | { |
| 237 | RANAP_CN_DomainIndicator_t ranaP_CNDomainIndicator; |
| 238 | RANAP_CN_DomainIndicator_t *ranaP_CNDomainIndicator_p = &ranaP_CNDomainIndicator; |
| 239 | tempDecoded = ANY_to_type_aper(&ie_p->value, &asn_DEF_RANAP_CN_DomainIndicator, (void**)&ranaP_CNDomainIndicator_p); |
| 240 | if (tempDecoded < 0) { |
| 241 | RANAP_DEBUG("Decoding of IE cN_DomainIndicator failed\n"); |
| 242 | return -1; |
| 243 | } |
| 244 | decoded += tempDecoded; |
| 245 | if (asn1_xer_print) |
| 246 | xer_fprint(stdout, &asn_DEF_RANAP_CN_DomainIndicator, ranaP_CNDomainIndicator_p); |
| 247 | memcpy(&initialUE_MessageIEs->cN_DomainIndicator, ranaP_CNDomainIndicator_p, sizeof(RANAP_CN_DomainIndicator_t)); |
| 248 | } break; |
| 249 | case RANAP_ProtocolIE_ID_id_LAI: |
| 250 | { |
| 251 | RANAP_LAI_t ranap_lai; |
| 252 | RANAP_LAI_t *ranap_lai_p = &ranap_lai; |
| 253 | tempDecoded = ANY_to_type_aper(&ie_p->value, &asn_DEF_RANAP_LAI, (void**)&ranap_lai_p); |
| 254 | if (tempDecoded < 0) { |
| 255 | RANAP_DEBUG("Decoding of IE lai failed\n"); |
| 256 | return -1; |
| 257 | } |
| 258 | decoded += tempDecoded; |
| 259 | if (asn1_xer_print) |
| 260 | xer_fprint(stdout, &asn_DEF_RANAP_LAI, ranap_lai_p); |
| 261 | memcpy(&initialUE_MessageIEs->lai, ranap_lai_p, sizeof(RANAP_LAI_t)); |
| 262 | } break; |
| 263 | case RANAP_ProtocolIE_ID_id_SAI: |
| 264 | { |
| 265 | RANAP_SAI_t ranap_sai; |
| 266 | RANAP_SAI_t *ranap_sai_p = &ranap_sai; |
| 267 | tempDecoded = ANY_to_type_aper(&ie_p->value, &asn_DEF_RANAP_SAI, (void**)&ranap_sai_p); |
| 268 | if (tempDecoded < 0) { |
| 269 | RANAP_DEBUG("Decoding of IE sai failed\n"); |
| 270 | return -1; |
| 271 | } |
| 272 | decoded += tempDecoded; |
| 273 | if (asn1_xer_print) |
| 274 | xer_fprint(stdout, &asn_DEF_RANAP_SAI, ranap_sai_p); |
| 275 | memcpy(&initialUE_MessageIEs->sai, ranap_sai_p, sizeof(RANAP_SAI_t)); |
| 276 | } break; |
| 277 | case RANAP_ProtocolIE_ID_id_NAS_PDU: |
| 278 | { |
| 279 | RANAP_NAS_PDU_t ranap_naspdu; |
| 280 | RANAP_NAS_PDU_t *ranap_naspdu_p = &ranap_naspdu; |
| 281 | tempDecoded = ANY_to_type_aper(&ie_p->value, &asn_DEF_RANAP_NAS_PDU, (void**)&ranap_naspdu_p); |
| 282 | if (tempDecoded < 0) { |
| 283 | RANAP_DEBUG("Decoding of IE nas_pdu failed\n"); |
| 284 | return -1; |
| 285 | } |
| 286 | decoded += tempDecoded; |
| 287 | if (asn1_xer_print) |
| 288 | xer_fprint(stdout, &asn_DEF_RANAP_NAS_PDU, ranap_naspdu_p); |
| 289 | memcpy(&initialUE_MessageIEs->nas_pdu, ranap_naspdu_p, sizeof(RANAP_NAS_PDU_t)); |
| 290 | } break; |
| 291 | case RANAP_ProtocolIE_ID_id_IuSigConId: |
| 292 | { |
| 293 | RANAP_IuSignallingConnectionIdentifier_t ranaP_IuSignallingConnectionIdentifier; |
| 294 | RANAP_IuSignallingConnectionIdentifier_t *ranaP_IuSignallingConnectionIdentifier_p = &ranaP_IuSignallingConnectionIdentifier; |
| 295 | tempDecoded = ANY_to_type_aper(&ie_p->value, &asn_DEF_RANAP_IuSignallingConnectionIdentifier, (void**)&ranaP_IuSignallingConnectionIdentifier_p); |
| 296 | if (tempDecoded < 0) { |
| 297 | RANAP_DEBUG("Decoding of IE iuSigConId failed\n"); |
| 298 | return -1; |
| 299 | } |
| 300 | decoded += tempDecoded; |
| 301 | if (asn1_xer_print) |
| 302 | xer_fprint(stdout, &asn_DEF_RANAP_IuSignallingConnectionIdentifier, ranaP_IuSignallingConnectionIdentifier_p); |
| 303 | memcpy(&initialUE_MessageIEs->iuSigConId, ranaP_IuSignallingConnectionIdentifier_p, sizeof(RANAP_IuSignallingConnectionIdentifier_t)); |
| 304 | } break; |
| 305 | case RANAP_ProtocolIE_ID_id_GlobalRNC_ID: |
| 306 | { |
| 307 | RANAP_GlobalRNC_ID_t ranaP_GlobalRNCID; |
| 308 | RANAP_GlobalRNC_ID_t *ranaP_GlobalRNCID_p = &ranaP_GlobalRNCID; |
| 309 | tempDecoded = ANY_to_type_aper(&ie_p->value, &asn_DEF_RANAP_GlobalRNC_ID, (void**)&ranaP_GlobalRNCID_p); |
| 310 | if (tempDecoded < 0) { |
| 311 | RANAP_DEBUG("Decoding of IE globalRNC_ID failed\n"); |
| 312 | return -1; |
| 313 | } |
| 314 | decoded += tempDecoded; |
| 315 | if (asn1_xer_print) |
| 316 | xer_fprint(stdout, &asn_DEF_RANAP_GlobalRNC_ID, ranaP_GlobalRNCID_p); |
| 317 | memcpy(&initialUE_MessageIEs->globalRNC_ID, ranaP_GlobalRNCID_p, sizeof(RANAP_GlobalRNC_ID_t)); |
| 318 | } break; |
| 319 | default: |
| 320 | RANAP_DEBUG("Unknown protocol IE id (%d) for message initialue_messageies\n", (int)ie_p->id); |
| 321 | return -1; |
| 322 | } |
| 323 | } |
| 324 | return decoded; |
| 325 | } |
| 326 | |
Harald Welte | 1c2ada0 | 2015-09-11 20:10:17 +0200 | [diff] [blame] | 327 | #include "ranap/RANAP_DirectTransfer.h" |
| 328 | #include "ranap/RANAP_SAPI.h" |
| 329 | #include "ranap/RANAP_RAC.h" |
| 330 | |
| 331 | #define DIRECTTRANSFERIES_RANAP_LAI_PRESENT (1 << 0) |
| 332 | #define DIRECTTRANSFERIES_RANAP_RAC_PRESENT (1 << 1) |
| 333 | #define DIRECTTRANSFERIES_RANAP_SAI_PRESENT (1 << 2) |
| 334 | #define DIRECTTRANSFERIES_RANAP_SAPI_PRESENT (1 << 3) |
| 335 | |
| 336 | typedef struct RANAP_DirectTransferIEs_s { |
| 337 | uint16_t presenceMask; |
| 338 | RANAP_NAS_PDU_t nas_pdu; |
| 339 | RANAP_LAI_t lai; ///< Optional field |
| 340 | RANAP_RAC_t rac; ///< Optional field |
| 341 | RANAP_SAI_t sai; ///< Optional field |
| 342 | RANAP_SAPI_t sapi; ///< Optional field |
| 343 | } RANAP_DirectTransferIEs_t; |
| 344 | |
| 345 | int ranap_decode_directtransferies( |
| 346 | RANAP_DirectTransferIEs_t *directTransferIEs, |
| 347 | ANY_t *any_p) { |
| 348 | |
| 349 | RANAP_DirectTransfer_t directTransfer; |
| 350 | RANAP_DirectTransfer_t *directTransfer_p = &directTransfer; |
| 351 | int i, decoded = 0; |
| 352 | int tempDecoded = 0; |
| 353 | assert(any_p != NULL); |
| 354 | assert(directTransferIEs != NULL); |
| 355 | |
| 356 | RANAP_DEBUG("Decoding message RANAP_DirectTransferIEs (%s:%d)\n", __FILE__, __LINE__); |
| 357 | |
| 358 | ANY_to_type_aper(any_p, &asn_DEF_RANAP_DirectTransfer, (void**)&directTransfer_p); |
| 359 | |
| 360 | for (i = 0; i < directTransfer_p->directTransfer_ies.list.count; i++) { |
| 361 | RANAP_IE_t *ie_p; |
| 362 | ie_p = directTransfer_p->directTransfer_ies.list.array[i]; |
| 363 | switch(ie_p->id) { |
| 364 | case RANAP_ProtocolIE_ID_id_NAS_PDU: |
| 365 | { |
| 366 | RANAP_NAS_PDU_t ranap_naspdu; |
| 367 | RANAP_NAS_PDU_t *ranap_naspdu_p = &ranap_naspdu; |
| 368 | tempDecoded = ANY_to_type_aper(&ie_p->value, &asn_DEF_RANAP_NAS_PDU, (void**)&ranap_naspdu_p); |
| 369 | if (tempDecoded < 0) { |
| 370 | RANAP_DEBUG("Decoding of IE nas_pdu failed\n"); |
| 371 | return -1; |
| 372 | } |
| 373 | decoded += tempDecoded; |
| 374 | if (asn1_xer_print) |
| 375 | xer_fprint(stdout, &asn_DEF_RANAP_NAS_PDU, ranap_naspdu_p); |
| 376 | memcpy(&directTransferIEs->nas_pdu, ranap_naspdu_p, sizeof(RANAP_NAS_PDU_t)); |
| 377 | } break; |
| 378 | /* Optional field */ |
| 379 | case RANAP_ProtocolIE_ID_id_LAI: |
| 380 | { |
| 381 | RANAP_LAI_t ranap_lai; |
| 382 | RANAP_LAI_t *ranap_lai_p = &ranap_lai; |
| 383 | directTransferIEs->presenceMask |= DIRECTTRANSFERIES_RANAP_LAI_PRESENT; |
| 384 | tempDecoded = ANY_to_type_aper(&ie_p->value, &asn_DEF_RANAP_LAI, (void**)&ranap_lai_p); |
| 385 | if (tempDecoded < 0) { |
| 386 | RANAP_DEBUG("Decoding of IE lai failed\n"); |
| 387 | return -1; |
| 388 | } |
| 389 | decoded += tempDecoded; |
| 390 | if (asn1_xer_print) |
| 391 | xer_fprint(stdout, &asn_DEF_RANAP_LAI, ranap_lai_p); |
| 392 | memcpy(&directTransferIEs->lai, ranap_lai_p, sizeof(RANAP_LAI_t)); |
| 393 | } break; |
| 394 | /* Optional field */ |
| 395 | case RANAP_ProtocolIE_ID_id_RAC: |
| 396 | { |
| 397 | RANAP_RAC_t ranap_rac; |
| 398 | RANAP_RAC_t *ranap_rac_p = &ranap_rac; |
| 399 | directTransferIEs->presenceMask |= DIRECTTRANSFERIES_RANAP_RAC_PRESENT; |
| 400 | tempDecoded = ANY_to_type_aper(&ie_p->value, &asn_DEF_RANAP_RAC, (void**)&ranap_rac_p); |
| 401 | if (tempDecoded < 0) { |
| 402 | RANAP_DEBUG("Decoding of IE rac failed\n"); |
| 403 | return -1; |
| 404 | } |
| 405 | decoded += tempDecoded; |
| 406 | if (asn1_xer_print) |
| 407 | xer_fprint(stdout, &asn_DEF_RANAP_RAC, ranap_rac_p); |
| 408 | memcpy(&directTransferIEs->rac, ranap_rac_p, sizeof(RANAP_RAC_t)); |
| 409 | } break; |
| 410 | /* Optional field */ |
| 411 | case RANAP_ProtocolIE_ID_id_SAI: |
| 412 | { |
| 413 | RANAP_SAI_t ranap_sai; |
| 414 | RANAP_SAI_t *ranap_sai_p = &ranap_sai; |
| 415 | directTransferIEs->presenceMask |= DIRECTTRANSFERIES_RANAP_SAI_PRESENT; |
| 416 | tempDecoded = ANY_to_type_aper(&ie_p->value, &asn_DEF_RANAP_SAI, (void**)&ranap_sai_p); |
| 417 | if (tempDecoded < 0) { |
| 418 | RANAP_DEBUG("Decoding of IE sai failed\n"); |
| 419 | return -1; |
| 420 | } |
| 421 | decoded += tempDecoded; |
| 422 | if (asn1_xer_print) |
| 423 | xer_fprint(stdout, &asn_DEF_RANAP_SAI, ranap_sai_p); |
| 424 | memcpy(&directTransferIEs->sai, ranap_sai_p, sizeof(RANAP_SAI_t)); |
| 425 | } break; |
| 426 | /* Optional field */ |
| 427 | case RANAP_ProtocolIE_ID_id_SAPI: |
| 428 | { |
| 429 | RANAP_SAPI_t ranap_sapi; |
| 430 | RANAP_SAPI_t *ranap_sapi_p = &ranap_sapi; |
| 431 | directTransferIEs->presenceMask |= DIRECTTRANSFERIES_RANAP_SAPI_PRESENT; |
| 432 | tempDecoded = ANY_to_type_aper(&ie_p->value, &asn_DEF_RANAP_SAPI, (void**)&ranap_sapi_p); |
| 433 | if (tempDecoded < 0) { |
| 434 | RANAP_DEBUG("Decoding of IE sapi failed\n"); |
| 435 | return -1; |
| 436 | } |
| 437 | decoded += tempDecoded; |
| 438 | if (asn1_xer_print) |
| 439 | xer_fprint(stdout, &asn_DEF_RANAP_SAPI, ranap_sapi_p); |
| 440 | memcpy(&directTransferIEs->sapi, ranap_sapi_p, sizeof(RANAP_SAPI_t)); |
| 441 | } break; |
| 442 | default: |
| 443 | RANAP_DEBUG("Unknown protocol IE id (%d) for message directtransferies\n", (int)ie_p->id); |
| 444 | return -1; |
| 445 | } |
| 446 | } |
| 447 | return decoded; |
| 448 | } |
| 449 | |
| 450 | int ranap_encode_directtransferies( |
| 451 | RANAP_DirectTransfer_t *directTransfer, |
| 452 | RANAP_DirectTransferIEs_t *directTransferIEs) { |
| 453 | |
| 454 | RANAP_IE_t *ie; |
| 455 | |
| 456 | if ((ie = ranap_new_ie(RANAP_ProtocolIE_ID_id_NAS_PDU, |
| 457 | RANAP_Criticality_ignore, |
| 458 | &asn_DEF_RANAP_NAS_PDU, |
| 459 | &directTransferIEs->nas_pdu)) == NULL) { |
| 460 | return -1; |
| 461 | } |
| 462 | ASN_SEQUENCE_ADD(&directTransfer->directTransfer_ies.list, ie); |
| 463 | |
| 464 | /* Optional field */ |
| 465 | if ((directTransferIEs->presenceMask & DIRECTTRANSFERIES_RANAP_LAI_PRESENT) |
| 466 | == DIRECTTRANSFERIES_RANAP_LAI_PRESENT) { |
| 467 | if ((ie = ranap_new_ie(RANAP_ProtocolIE_ID_id_LAI, |
| 468 | RANAP_Criticality_ignore, |
| 469 | &asn_DEF_RANAP_LAI, |
| 470 | &directTransferIEs->lai)) == NULL) { |
| 471 | return -1; |
| 472 | } |
| 473 | ASN_SEQUENCE_ADD(&directTransfer->directTransfer_ies.list, ie); |
| 474 | } |
| 475 | |
| 476 | /* Optional field */ |
| 477 | if ((directTransferIEs->presenceMask & DIRECTTRANSFERIES_RANAP_RAC_PRESENT) |
| 478 | == DIRECTTRANSFERIES_RANAP_RAC_PRESENT) { |
| 479 | if ((ie = ranap_new_ie(RANAP_ProtocolIE_ID_id_RAC, |
| 480 | RANAP_Criticality_ignore, |
| 481 | &asn_DEF_RANAP_RAC, |
| 482 | &directTransferIEs->rac)) == NULL) { |
| 483 | return -1; |
| 484 | } |
| 485 | ASN_SEQUENCE_ADD(&directTransfer->directTransfer_ies.list, ie); |
| 486 | } |
| 487 | |
| 488 | /* Optional field */ |
| 489 | if ((directTransferIEs->presenceMask & DIRECTTRANSFERIES_RANAP_SAI_PRESENT) |
| 490 | == DIRECTTRANSFERIES_RANAP_SAI_PRESENT) { |
| 491 | if ((ie = ranap_new_ie(RANAP_ProtocolIE_ID_id_SAI, |
| 492 | RANAP_Criticality_ignore, |
| 493 | &asn_DEF_RANAP_SAI, |
| 494 | &directTransferIEs->sai)) == NULL) { |
| 495 | return -1; |
| 496 | } |
| 497 | ASN_SEQUENCE_ADD(&directTransfer->directTransfer_ies.list, ie); |
| 498 | } |
| 499 | |
| 500 | /* Optional field */ |
| 501 | if ((directTransferIEs->presenceMask & DIRECTTRANSFERIES_RANAP_SAPI_PRESENT) |
| 502 | == DIRECTTRANSFERIES_RANAP_SAPI_PRESENT) { |
| 503 | if ((ie = ranap_new_ie(RANAP_ProtocolIE_ID_id_SAPI, |
| 504 | RANAP_Criticality_ignore, |
| 505 | &asn_DEF_RANAP_SAPI, |
| 506 | &directTransferIEs->sapi)) == NULL) { |
| 507 | return -1; |
| 508 | } |
| 509 | ASN_SEQUENCE_ADD(&directTransfer->directTransfer_ies.list, ie); |
| 510 | } |
| 511 | |
| 512 | return 0; |
| 513 | } |
| 514 | |
| 515 | |
| 516 | |
Harald Welte | cc27beb | 2015-09-11 18:45:39 +0200 | [diff] [blame] | 517 | |
Harald Welte | 350814a | 2015-09-10 22:32:15 +0200 | [diff] [blame] | 518 | /*********************************************************************** |
| 519 | * END auto-generated copy+pasted |
| 520 | ***********************************************************************/ |
| 521 | |
Harald Welte | e2e5d4d | 2015-09-10 23:49:45 +0200 | [diff] [blame] | 522 | static int ranap_tx_reset_ack(struct hnb_context *hnb, |
| 523 | RANAP_CN_DomainIndicator_t domain) |
Harald Welte | 350814a | 2015-09-10 22:32:15 +0200 | [diff] [blame] | 524 | { |
Harald Welte | e2e5d4d | 2015-09-10 23:49:45 +0200 | [diff] [blame] | 525 | RANAP_ResetAcknowledge_t out; |
| 526 | RANAP_ResetAcknowledgeIEs_t ies; |
| 527 | struct msgb *msg; |
| 528 | int rc; |
Harald Welte | 350814a | 2015-09-10 22:32:15 +0200 | [diff] [blame] | 529 | |
| 530 | memset(&ies, 0, sizeof(ies)); |
Harald Welte | e2e5d4d | 2015-09-10 23:49:45 +0200 | [diff] [blame] | 531 | ies.cN_DomainIndicator = domain; |
Harald Welte | 350814a | 2015-09-10 22:32:15 +0200 | [diff] [blame] | 532 | |
Harald Welte | e2e5d4d | 2015-09-10 23:49:45 +0200 | [diff] [blame] | 533 | memset(&out, 0, sizeof(out)); |
| 534 | rc = ranap_encode_resetacknowledgeies(&out, &ies); |
| 535 | if (rc < 0) { |
| 536 | LOGP(DMAIN, LOGL_ERROR, "error encoding reset ack IEs: %d\n", rc); |
| 537 | return rc; |
| 538 | } |
| 539 | |
| 540 | msg = ranap_generate_successful_outcome(RANAP_ProcedureCode_id_Reset, |
| 541 | RANAP_Criticality_reject, |
| 542 | &asn_DEF_RANAP_ResetAcknowledge, |
| 543 | &out); |
| 544 | if (!msg) |
| 545 | return -1; |
| 546 | |
| 547 | msg->dst = hnb; |
| 548 | |
| 549 | rc = rua_tx_udt(msg); |
| 550 | |
| 551 | return rc; |
Harald Welte | 350814a | 2015-09-10 22:32:15 +0200 | [diff] [blame] | 552 | } |
Harald Welte | 350814a | 2015-09-10 22:32:15 +0200 | [diff] [blame] | 553 | |
| 554 | static int ranap_rx_init_reset(struct hnb_context *hnb, ANY_t *in) |
| 555 | { |
| 556 | RANAP_ResetIEs_t ies; |
| 557 | int rc; |
| 558 | |
| 559 | rc = ranap_decode_reseties(&ies, in); |
| 560 | if (rc < 0) |
| 561 | return rc; |
| 562 | |
| 563 | DEBUGP(DMAIN, "RESET.req\n"); |
| 564 | |
Harald Welte | 80401ad | 2015-09-11 19:48:06 +0200 | [diff] [blame] | 565 | /* FIXME: Actually we have to wait for some guard time? */ |
| 566 | /* FIXME: Reset all resources related to this HNB/RNC */ |
Harald Welte | e2e5d4d | 2015-09-10 23:49:45 +0200 | [diff] [blame] | 567 | ranap_tx_reset_ack(hnb, ies.cN_DomainIndicator); |
| 568 | |
Harald Welte | 350814a | 2015-09-10 22:32:15 +0200 | [diff] [blame] | 569 | return 0; |
| 570 | } |
| 571 | |
Harald Welte | 80401ad | 2015-09-11 19:48:06 +0200 | [diff] [blame] | 572 | int ranap_parse_lai(struct gprs_ra_id *ra_id, const RANAP_LAI_t *lai) |
| 573 | { |
| 574 | uint8_t *ptr = lai->pLMNidentity.buf; |
| 575 | |
| 576 | /* TS 25.413 9.2.3.55 */ |
| 577 | if (lai->pLMNidentity.size != 3) |
| 578 | return -1; |
| 579 | |
| 580 | ra_id->mcc = (ptr[0] & 0xF) * 100 + |
| 581 | (ptr[0] >> 4) * 10 + |
| 582 | (ptr[1] & 0xF); |
| 583 | ra_id->mnc = (ptr[2] & 0xF) + |
| 584 | (ptr[2] >> 4) * 10; |
| 585 | if ((ptr[1] >> 4) != 0xF) |
| 586 | ra_id->mnc += (ptr[1] >> 4) * 100; |
| 587 | |
| 588 | ra_id->lac = asn1str_to_u16(&lai->lAC); |
| 589 | |
| 590 | /* TS 25.413 9.2.3.6 */ |
| 591 | if (ra_id->lac == 0 || ra_id->lac == 0xfffe) |
| 592 | return -1; |
| 593 | |
| 594 | return 0; |
| 595 | } |
| 596 | |
| 597 | static int ranap_rx_init_ue_msg(struct hnb_context *hnb, ANY_t *in) |
| 598 | { |
| 599 | RANAP_InitialUE_MessageIEs_t ies; |
| 600 | struct gprs_ra_id ra_id; |
| 601 | int rc; |
| 602 | |
| 603 | rc = ranap_decode_initialue_messageies(&ies, in); |
| 604 | if (rc < 0) |
| 605 | return rc; |
| 606 | |
| 607 | /* location area ID of the serving cell */ |
| 608 | ranap_parse_lai(&ra_id, &ies.lai); |
| 609 | |
| 610 | DEBUGP(DMAIN, "%u-%u-%u: InitialUE: %s\n", ra_id.mcc, ra_id.mnc, |
| 611 | ra_id.lac, osmo_hexdump(ies.nas_pdu.buf, ies.nas_pdu.size)); |
| 612 | /* FIXME: hand NAS PDU into MSC */ |
| 613 | |
| 614 | return 0; |
| 615 | } |
| 616 | |
Harald Welte | 1c2ada0 | 2015-09-11 20:10:17 +0200 | [diff] [blame] | 617 | static int ranap_rx_dt(struct hnb_context *hnb, ANY_t *in) |
| 618 | { |
| 619 | RANAP_DirectTransferIEs_t ies; |
| 620 | int sapi = 0; |
| 621 | int rc; |
| 622 | |
| 623 | rc = ranap_decode_directtransferies(&ies, in); |
| 624 | if (rc < 0) |
| 625 | return rc; |
| 626 | |
| 627 | if (ies.presenceMask & DIRECTTRANSFERIES_RANAP_SAPI_PRESENT) |
| 628 | sapi = ies.sapi; |
| 629 | |
| 630 | if (ies.presenceMask & DIRECTTRANSFERIES_RANAP_LAI_PRESENT) { |
| 631 | /* FIXME: Update LAI associated with UE */ |
| 632 | } |
| 633 | |
| 634 | if (ies.presenceMask & DIRECTTRANSFERIES_RANAP_RAC_PRESENT) { |
| 635 | /* FIXME: Update RAC associated with UE */ |
| 636 | } |
| 637 | |
| 638 | DEBUGP(DMAIN, "DirectTransfer: %s\n", |
| 639 | osmo_hexdump(ies.nas_pdu.buf, ies.nas_pdu.size)); |
| 640 | /* FIXME: hand NAS PDU into MSC */ |
| 641 | } |
| 642 | |
Harald Welte | 350814a | 2015-09-10 22:32:15 +0200 | [diff] [blame] | 643 | static int ranap_rx_initiating_msg(struct hnb_context *hnb, RANAP_InitiatingMessage_t *imsg) |
| 644 | { |
| 645 | int rc; |
| 646 | |
| 647 | switch (imsg->procedureCode) { |
| 648 | case RANAP_ProcedureCode_id_Reset: |
| 649 | rc = ranap_rx_init_reset(hnb, &imsg->value); |
| 650 | break; |
Harald Welte | 80401ad | 2015-09-11 19:48:06 +0200 | [diff] [blame] | 651 | case RANAP_ProcedureCode_id_InitialUE_Message: |
| 652 | rc = ranap_rx_init_ue_msg(hnb, &imsg->value); |
| 653 | break; |
Harald Welte | 1c2ada0 | 2015-09-11 20:10:17 +0200 | [diff] [blame] | 654 | case RANAP_ProcedureCode_id_DirectTransfer: |
| 655 | rc = ranap_rx_dt(hnb, &imsg->value); |
| 656 | break; |
Harald Welte | 350814a | 2015-09-10 22:32:15 +0200 | [diff] [blame] | 657 | } |
| 658 | } |
| 659 | |
| 660 | static int _hnbgw_ranap_rx(struct hnb_context *hnb, RANAP_RANAP_PDU_t *pdu) |
| 661 | { |
| 662 | int rc; |
| 663 | |
| 664 | switch (pdu->present) { |
| 665 | case RANAP_RANAP_PDU_PR_initiatingMessage: |
| 666 | rc = ranap_rx_initiating_msg(hnb, &pdu->choice.initiatingMessage); |
| 667 | break; |
| 668 | case RANAP_RANAP_PDU_PR_successfulOutcome: |
| 669 | break; |
| 670 | case RANAP_RANAP_PDU_PR_unsuccessfulOutcome: |
| 671 | break; |
| 672 | default: |
| 673 | break; |
| 674 | } |
| 675 | } |
| 676 | |
| 677 | |
| 678 | int hnbgw_ranap_rx(struct msgb *msg, uint8_t *data, size_t len) |
| 679 | { |
| 680 | RANAP_RANAP_PDU_t _pdu, *pdu = &_pdu; |
| 681 | asn_dec_rval_t dec_ret; |
| 682 | int rc; |
| 683 | |
| 684 | memset(pdu, 0, sizeof(*pdu)); |
| 685 | dec_ret = aper_decode(NULL,&asn_DEF_RANAP_RANAP_PDU, (void **) &pdu, |
| 686 | data, len, 0, 0); |
| 687 | if (dec_ret.code != RC_OK) { |
| 688 | LOGP(DMAIN, LOGL_ERROR, "Error in RANAP ASN.1 decode\n"); |
| 689 | return rc; |
| 690 | } |
| 691 | |
| 692 | rc = _hnbgw_ranap_rx(msg->dst, pdu); |
| 693 | |
| 694 | return rc; |
| 695 | } |
| 696 | |
| 697 | int hnbgw_ranap_init(void) |
| 698 | { |
| 699 | |
| 700 | } |