| /* common RANAP code */ |
| |
| /* (C) 2015 by Harald Welte <laforge@gnumonks.org> |
| * All Rights Reserved |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU Affero General Public License as published by |
| * the Free Software Foundation; either version 3 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU Affero General Public License for more details. |
| * |
| * You should have received a copy of the GNU Affero General Public License |
| * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| * |
| */ |
| |
| #include <stdint.h> |
| |
| #include <osmocom/core/msgb.h> |
| #include <osmocom/gsm/gsm48.h> |
| |
| #include <osmocom/ranap/ranap_common.h> |
| |
| extern int asn1_xer_print; |
| int _ranap_DRANAP = 0; |
| #define DRANAP _ranap_DRANAP |
| |
| const struct value_string ranap_presence_vals[5] = { |
| { RANAP_RANAP_PDU_PR_initiatingMessage, "Initiating" }, |
| { RANAP_RANAP_PDU_PR_successfulOutcome, "Successful Outcome" }, |
| { RANAP_RANAP_PDU_PR_unsuccessfulOutcome, "Unsuccessful Outcome" }, |
| { RANAP_RANAP_PDU_PR_outcome, "(Intermediate) Outcome" }, |
| { 0, NULL } |
| }; |
| |
| const struct value_string ranap_procedure_code_vals[48] = { |
| { RANAP_ProcedureCode_id_RAB_Assignment, "RAB Assignment" }, |
| { RANAP_ProcedureCode_id_Iu_Release, "Iu Release" }, |
| { RANAP_ProcedureCode_id_RelocationPreparation, "Relocation Preparation" }, |
| { RANAP_ProcedureCode_id_RelocationResourceAllocation, "Relocation Resource Allocation" }, |
| { RANAP_ProcedureCode_id_RelocationCancel, "Relocation Cancel" }, |
| { RANAP_ProcedureCode_id_SRNS_ContextTransfer, "SRNS Context Transfer" }, |
| { RANAP_ProcedureCode_id_SecurityModeControl, "Security Mode Control" }, |
| { RANAP_ProcedureCode_id_DataVolumeReport, "Data Volume Report" }, |
| { RANAP_ProcedureCode_id_Reset, "Reset" }, |
| { RANAP_ProcedureCode_id_RAB_ReleaseRequest, "RAB Release Request" }, |
| { RANAP_ProcedureCode_id_Iu_ReleaseRequest, "Iu Release Request" }, |
| { RANAP_ProcedureCode_id_RelocationDetect, "Relocation Detect" }, |
| { RANAP_ProcedureCode_id_RelocationComplete, "Relocation Complete" }, |
| { RANAP_ProcedureCode_id_Paging, "Paging" }, |
| { RANAP_ProcedureCode_id_CommonID, "Common ID" }, |
| { RANAP_ProcedureCode_id_CN_InvokeTrace, "CN Invoke Trace" }, |
| { RANAP_ProcedureCode_id_LocationReportingControl, "Location Reporting Control" }, |
| { RANAP_ProcedureCode_id_LocationReport, "Location Report" }, |
| { RANAP_ProcedureCode_id_InitialUE_Message, "Initial UE Message" }, |
| { RANAP_ProcedureCode_id_DirectTransfer, "Direct Transfer" }, |
| { RANAP_ProcedureCode_id_OverloadControl, "Overload Control" }, |
| { RANAP_ProcedureCode_id_ErrorIndication, "Error Indication" }, |
| { RANAP_ProcedureCode_id_SRNS_DataForward, "SRNS Data Forward" }, |
| { RANAP_ProcedureCode_id_ForwardSRNS_Context, "Forward SRNS Context" }, |
| { RANAP_ProcedureCode_id_privateMessage, "Private Message" }, |
| { RANAP_ProcedureCode_id_CN_DeactivateTrace, "CN Deactivate Trace" }, |
| { RANAP_ProcedureCode_id_ResetResource, "Reset Resource" }, |
| { RANAP_ProcedureCode_id_RANAP_Relocation, "RANAP Relocation" }, |
| { RANAP_ProcedureCode_id_RAB_ModifyRequest, "RAB Modify Request" }, |
| { RANAP_ProcedureCode_id_LocationRelatedData, "Location Related Data" }, |
| { RANAP_ProcedureCode_id_InformationTransfer, "Information Transfer" }, |
| { RANAP_ProcedureCode_id_UESpecificInformation, "UE Specific Information" }, |
| { RANAP_ProcedureCode_id_UplinkInformationExchange, "Uplink Information Transfer" }, |
| { RANAP_ProcedureCode_id_DirectInformationTransfer, "Direct Information Transfer" }, |
| { RANAP_ProcedureCode_id_MBMSSessionStart, "MBMS Session Start" }, |
| { RANAP_ProcedureCode_id_MBMSSessionUpdate, "MBMS Session Update" }, |
| { RANAP_ProcedureCode_id_MBMSSessionStop, "MBMS Session Stop" }, |
| { RANAP_ProcedureCode_id_MBMSUELinking, "MBMS UE Linking" }, |
| { RANAP_ProcedureCode_id_MBMSRegistration, "MBMS Registration" }, |
| { RANAP_ProcedureCode_id_MBMSCNDe_Registration_Procedure, "MBMS CN De-Registration" }, |
| { RANAP_ProcedureCode_id_MBMSRABEstablishmentIndication, "MBMS RAB Establishment Indication" }, |
| { RANAP_ProcedureCode_id_MBMSRABRelease, "MBMS RAB Release" }, |
| { RANAP_ProcedureCode_id_enhancedRelocationComplete, "Enhanced Relocation Complete" }, |
| { RANAP_ProcedureCode_id_enhancedRelocationCompleteConfirm, "Enhanced Relocation Complete Confirm" }, |
| { RANAP_ProcedureCode_id_RANAPenhancedRelocation, "RANAP Enhanced Relocation" }, |
| { RANAP_ProcedureCode_id_SRVCCPreparation, "SRVCC Preparation" }, |
| { RANAP_ProcedureCode_id_UeRadioCapabilityMatch, "UE Radio Capability Match" }, |
| { 0, NULL } |
| }; |
| |
| static const struct value_string ranap_cause_radio_vals[] = { |
| { RANAP_CauseRadioNetwork_rab_pre_empted, "RAB pre-empted" }, |
| { RANAP_CauseRadioNetwork_trelocoverall_expiry, "Treloc_overall expiry" }, |
| { RANAP_CauseRadioNetwork_trelocprep_expiry, "Treloc_prep expiry" }, |
| { RANAP_CauseRadioNetwork_treloccomplete_expiry,"Treloc_complete expiry" }, |
| { RANAP_CauseRadioNetwork_tqueing_expiry, "Tqueueing expiry" }, |
| { RANAP_CauseRadioNetwork_relocation_triggered, "Relocation triggered" }, |
| { RANAP_CauseRadioNetwork_trellocalloc_expiry, "Treloc_alloc expiry" }, |
| { RANAP_CauseRadioNetwork_unable_to_establish_during_relocation, |
| "unable to establish during relocation" }, |
| { RANAP_CauseRadioNetwork_unknown_target_rnc, |
| "unknown target RNC" }, |
| { RANAP_CauseRadioNetwork_relocation_cancelled, "Relocation cancelled" }, |
| { RANAP_CauseRadioNetwork_successful_relocation, "Successful relocation" }, |
| { RANAP_CauseRadioNetwork_requested_ciphering_and_or_integrity_protection_algorithms_not_supported, |
| "requested ciph. and/or int. prot. algorithms not supported" }, |
| { RANAP_CauseRadioNetwork_conflict_with_already_existing_integrity_protection_and_or_ciphering_information, |
| "conflict with existing int. prot. and/or ciph. information" }, |
| { RANAP_CauseRadioNetwork_failure_in_the_radio_interface_procedure, |
| "failure in the radio interface procedure" }, |
| { RANAP_CauseRadioNetwork_release_due_to_utran_generated_reason, |
| "release due to UTRAN generated reason" }, |
| { RANAP_CauseRadioNetwork_user_inactivity, "user inactivity" }, |
| { RANAP_CauseRadioNetwork_time_critical_relocation, |
| "time critical relocation" }, |
| { RANAP_CauseRadioNetwork_requested_traffic_class_not_available, |
| "requested traffic class not available" }, |
| { RANAP_CauseRadioNetwork_invalid_rab_parameters_value, |
| "invalid RAB parameters value" }, |
| { RANAP_CauseRadioNetwork_requested_maximum_bit_rate_not_available, |
| "requested max. bit-rate not available" }, |
| { RANAP_CauseRadioNetwork_requested_guaranteed_bit_rate_not_available, |
| "requested guaranteed bit-rate not available" }, |
| { RANAP_CauseRadioNetwork_requested_transfer_delay_not_achievable, |
| "requested transfer delay not achievable" }, |
| { RANAP_CauseRadioNetwork_invalid_rab_parameters_combination, |
| "invalid RAB parameters combination" }, |
| { RANAP_CauseRadioNetwork_condition_violation_for_sdu_parameters, |
| "condition violation for SDU parameters" }, |
| { RANAP_CauseRadioNetwork_condition_violation_for_traffic_handling_priority, |
| "condition violation for traffic handling priority" }, |
| { RANAP_CauseRadioNetwork_condition_violation_for_guaranteed_bit_rate, |
| "condition violation for guaranteed bit-rate" }, |
| { RANAP_CauseRadioNetwork_user_plane_versions_not_supported, |
| "user-plane versions not supported" }, |
| { RANAP_CauseRadioNetwork_iu_up_failure, "Iu-UP failure" }, |
| { RANAP_CauseRadioNetwork_relocation_failure_in_target_CN_RNC_or_target_system, |
| "relocation failure in target CN/RNC or target system" }, |
| { RANAP_CauseRadioNetwork_invalid_RAB_ID, "Invalid RAB ID" }, |
| { RANAP_CauseRadioNetwork_no_remaining_rab, "No remaining RAB" }, |
| { RANAP_CauseRadioNetwork_interaction_with_other_procedure, |
| "interaction with other procedure" }, |
| { RANAP_CauseRadioNetwork_requested_maximum_bit_rate_for_dl_not_available, |
| "requested maximum bit-rate for DL not available" }, |
| { RANAP_CauseRadioNetwork_requested_maximum_bit_rate_for_ul_not_available, |
| "requested maximum bit-rate for UL not available" }, |
| { RANAP_CauseRadioNetwork_requested_guaranteed_bit_rate_for_dl_not_available, |
| "requested guaranteed bit-rate for DL not available" }, |
| { RANAP_CauseRadioNetwork_requested_guaranteed_bit_rate_for_ul_not_available, |
| "requested guaranteed bit-rate for UL not available" }, |
| { RANAP_CauseRadioNetwork_repeated_integrity_checking_failure, |
| "repeated integrity checking failure" }, |
| { RANAP_CauseRadioNetwork_requested_request_type_not_supported, |
| "requested request type not supported" }, |
| { RANAP_CauseRadioNetwork_request_superseded, "request superseded" }, |
| { RANAP_CauseRadioNetwork_release_due_to_UE_generated_signalling_connection_release, |
| "release due to UE-generated signalling connection release" }, |
| { RANAP_CauseRadioNetwork_resource_optimisation_relocation, |
| "resource optimisation relocation" }, |
| { RANAP_CauseRadioNetwork_requested_information_not_available, |
| "requested information not available" }, |
| { RANAP_CauseRadioNetwork_relocation_desirable_for_radio_reasons, |
| "relocation desirable for radio reasons" }, |
| { RANAP_CauseRadioNetwork_relocation_not_supported_in_target_RNC_or_target_system, |
| "relocation not supported in target RNC or target system" }, |
| { RANAP_CauseRadioNetwork_directed_retry, "directed retry" }, |
| { RANAP_CauseRadioNetwork_radio_connection_with_UE_Lost, |
| "radio connection with UE lost" }, |
| { RANAP_CauseRadioNetwork_rNC_unable_to_establish_all_RFCs, |
| "RNC unable to establish al RFCs" }, |
| { RANAP_CauseRadioNetwork_deciphering_keys_not_available, |
| "de-ciphering keys not available" }, |
| { RANAP_CauseRadioNetwork_dedicated_assistance_data_not_available, |
| "dedicated assistance data not available" }, |
| { RANAP_CauseRadioNetwork_relocation_target_not_allowed, |
| "relocation target not allowed" }, |
| { RANAP_CauseRadioNetwork_location_reporting_congestion, |
| "relocation reporting congestion" }, |
| { RANAP_CauseRadioNetwork_reduce_load_in_serving_cell, |
| "reduce load in serving cell" }, |
| { RANAP_CauseRadioNetwork_no_radio_resources_available_in_target_cell, |
| "no radio resources available in target cell" }, |
| { RANAP_CauseRadioNetwork_gERAN_Iumode_failure, |
| "GERAN Iu-Mode failure" }, |
| { RANAP_CauseRadioNetwork_access_restricted_due_to_shared_networks, |
| "access restricted due to shared networks" }, |
| { RANAP_CauseRadioNetwork_incoming_relocation_not_supported_due_to_PUESBINE_feature, |
| "incoming relocation not supported due to PUESBINE feature" }, |
| { RANAP_CauseRadioNetwork_traffic_load_in_the_target_cell_higher_than_in_the_source_cell, |
| "traffic load in the target cell higher than in the source cell" }, |
| { RANAP_CauseRadioNetwork_mBMS_no_multicast_service_for_this_UE, |
| "MBMS: no multicast service for this UE" }, |
| { RANAP_CauseRadioNetwork_mBMS_unknown_UE_ID, "MBMS: unknown UE ID" }, |
| { RANAP_CauseRadioNetwork_successful_MBMS_session_start_no_data_bearer_necessary, |
| "successful MBMS session start; no data bearer necessarry" }, |
| { RANAP_CauseRadioNetwork_mBMS_superseded_due_to_NNSF, |
| "MBMS superseded due to NNSF" }, |
| { RANAP_CauseRadioNetwork_mBMS_UE_linking_already_done, |
| "MBMS: UE linking already done" }, |
| { RANAP_CauseRadioNetwork_mBMS_UE_de_linking_failure_no_existing_UE_linking, |
| "MBMS: UE de-linking failure; no existing UE linking" }, |
| { RANAP_CauseRadioNetwork_tMGI_unknown, "TMGI unknown" }, |
| { 0, NULL } |
| }; |
| |
| static const struct value_string ranap_cause_transm_vals[] = { |
| { RANAP_CauseTransmissionNetwork_signalling_transport_resource_failure, |
| "signalling transport resource failure" }, |
| { RANAP_CauseTransmissionNetwork_iu_transport_connection_failed_to_establish, |
| "Iu transport connection failed to establish" }, |
| { 0, NULL } |
| }; |
| |
| static const struct value_string ranap_cause_nas_vals[] = { |
| { RANAP_CauseNAS_user_restriction_start_indication, |
| "user restriction; start indication" }, |
| { RANAP_CauseNAS_user_restriction_end_indication, |
| "user restriction; stop indication" }, |
| { RANAP_CauseNAS_normal_release, |
| "normal release" }, |
| { RANAP_CauseNAS_csg_subscription_expiry, |
| "CSG subscription expiry" }, |
| { 0, NULL } |
| }; |
| |
| static const struct value_string ranap_cause_prot_vals[] = { |
| { RANAP_CauseProtocol_transfer_syntax_error, |
| "transfer sytax error" }, |
| { RANAP_CauseProtocol_semantic_error, |
| "semantic error" }, |
| { RANAP_CauseProtocol_message_not_compatible_with_receiver_state, |
| "message not compatible with receiver state" }, |
| { RANAP_CauseProtocol_abstract_syntax_error_reject, |
| "syntax error: reject" }, |
| { RANAP_CauseProtocol_abstract_syntax_error_ignore_and_notify, |
| "syntax error: ignore and notify" }, |
| { RANAP_CauseProtocol_abstract_syntax_error_falsely_constructed_message, |
| "syntax error: falsely constructed message" }, |
| { 0, NULL } |
| }; |
| |
| static const struct value_string ranap_cause_misc_vals[] = { |
| { RANAP_CauseMisc_om_intervention, "OAM intervention" }, |
| { RANAP_CauseMisc_no_resource_available, "no resource available" }, |
| { RANAP_CauseMisc_unspecified_failure, "unspecified failure" }, |
| { RANAP_CauseMisc_network_optimisation, "network optimisation" }, |
| { 0, NULL } |
| }; |
| |
| char *ranap_cause_str(const RANAP_Cause_t *cause) |
| { |
| static char buf[128]; |
| |
| switch (cause->present) { |
| case RANAP_Cause_PR_radioNetwork: |
| snprintf(buf, sizeof(buf), "radio(%s)", |
| get_value_string(ranap_cause_radio_vals, |
| cause->choice.radioNetwork)); |
| break; |
| case RANAP_Cause_PR_transmissionNetwork: |
| snprintf(buf, sizeof(buf), "transmission(%s)", |
| get_value_string(ranap_cause_transm_vals, |
| cause->choice.transmissionNetwork)); |
| break; |
| case RANAP_Cause_PR_nAS: |
| snprintf(buf, sizeof(buf), "nas(%s)", |
| get_value_string(ranap_cause_nas_vals, |
| cause->choice.nAS)); |
| break; |
| case RANAP_Cause_PR_protocol: |
| snprintf(buf, sizeof(buf), "protocol(%s)", |
| get_value_string(ranap_cause_prot_vals, |
| cause->choice.protocol)); |
| break; |
| case RANAP_Cause_PR_misc: |
| snprintf(buf, sizeof(buf), "misc(%s)", |
| get_value_string(ranap_cause_misc_vals, |
| cause->choice.misc)); |
| break; |
| case RANAP_Cause_PR_non_Standard: |
| snprintf(buf, sizeof(buf), "non-standard(%u)", |
| cause->choice.non_Standard); |
| break; |
| default: |
| strcpy(buf, "unknown"); |
| break; |
| } |
| return buf; |
| } |
| |
| |
| static struct msgb *ranap_msgb_alloc(void) |
| { |
| return msgb_alloc_headroom(1024+256, 256, "RANAP Tx"); |
| } |
| |
| static struct msgb *_ranap_gen_msg(RANAP_RANAP_PDU_t *pdu) |
| { |
| struct msgb *msg = ranap_msgb_alloc(); |
| asn_enc_rval_t rval; |
| |
| if (!msg) |
| return NULL; |
| |
| rval = aper_encode_to_buffer(&asn_DEF_RANAP_RANAP_PDU, pdu, |
| msg->data, msgb_tailroom(msg)); |
| if (rval.encoded < 0) { |
| LOGP(DRANAP, LOGL_ERROR, "Error encoding type: %s\n", |
| rval.failed_type->name); |
| |
| } |
| |
| msgb_put(msg, rval.encoded/8); |
| |
| return msg; |
| } |
| |
| struct msgb *ranap_generate_initiating_message(e_RANAP_ProcedureCode procedureCode, |
| RANAP_Criticality_t criticality, |
| asn_TYPE_descriptor_t *td, void *sptr) |
| { |
| RANAP_RANAP_PDU_t pdu; |
| struct msgb *msg; |
| int rc; |
| |
| memset(&pdu, 0, sizeof(pdu)); |
| |
| pdu.present = RANAP_RANAP_PDU_PR_initiatingMessage; |
| pdu.choice.initiatingMessage.procedureCode = procedureCode; |
| pdu.choice.initiatingMessage.criticality = criticality; |
| rc = ANY_fromType_aper(&pdu.choice.initiatingMessage.value, td, sptr); |
| if (rc < 0) { |
| LOGP(DRANAP, LOGL_ERROR, "Error in ANY_fromType_aper\n"); |
| return NULL; |
| } |
| |
| msg = _ranap_gen_msg(&pdu); |
| ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RANAP_RANAP_PDU, &pdu); |
| |
| return msg; |
| } |
| |
| struct msgb *ranap_generate_successful_outcome( |
| e_RANAP_ProcedureCode procedureCode, |
| RANAP_Criticality_t criticality, |
| asn_TYPE_descriptor_t * td, |
| void *sptr) |
| { |
| RANAP_RANAP_PDU_t pdu; |
| struct msgb *msg; |
| int rc; |
| |
| memset(&pdu, 0, sizeof(pdu)); |
| |
| pdu.present = RANAP_RANAP_PDU_PR_successfulOutcome; |
| pdu.choice.successfulOutcome.procedureCode = procedureCode; |
| pdu.choice.successfulOutcome.criticality = criticality; |
| rc = ANY_fromType_aper(&pdu.choice.successfulOutcome.value, td, sptr); |
| if (rc < 0) { |
| LOGP(DRANAP, LOGL_ERROR, "Error in ANY_fromType_aper\n"); |
| return NULL; |
| } |
| |
| msg = _ranap_gen_msg(&pdu); |
| ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RANAP_RANAP_PDU, &pdu); |
| |
| return msg; |
| } |
| |
| struct msgb *ranap_generate_unsuccessful_outcome( |
| e_RANAP_ProcedureCode procedureCode, |
| RANAP_Criticality_t criticality, |
| asn_TYPE_descriptor_t * td, |
| void *sptr) |
| { |
| RANAP_RANAP_PDU_t pdu; |
| struct msgb *msg; |
| int rc; |
| |
| memset(&pdu, 0, sizeof(pdu)); |
| |
| pdu.present = RANAP_RANAP_PDU_PR_unsuccessfulOutcome; |
| pdu.choice.unsuccessfulOutcome.procedureCode = procedureCode; |
| pdu.choice.unsuccessfulOutcome.criticality = criticality; |
| rc = ANY_fromType_aper(&pdu.choice.unsuccessfulOutcome.value, td, sptr); |
| if (rc < 0) { |
| LOGP(DRANAP, LOGL_ERROR, "Error in ANY_fromType_aper\n"); |
| return NULL; |
| } |
| |
| msg = _ranap_gen_msg(&pdu); |
| ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RANAP_RANAP_PDU, &pdu); |
| |
| return msg; |
| } |
| |
| struct msgb *ranap_generate_outcome( |
| e_RANAP_ProcedureCode procedureCode, |
| RANAP_Criticality_t criticality, |
| asn_TYPE_descriptor_t * td, |
| void *sptr) |
| { |
| RANAP_RANAP_PDU_t pdu; |
| struct msgb *msg; |
| int rc; |
| |
| memset(&pdu, 0, sizeof(pdu)); |
| |
| pdu.present = RANAP_RANAP_PDU_PR_outcome; |
| pdu.choice.outcome.procedureCode = procedureCode; |
| pdu.choice.outcome.criticality = criticality; |
| rc = ANY_fromType_aper(&pdu.choice.outcome.value, td, sptr); |
| if (rc < 0) { |
| LOGP(DRANAP, LOGL_ERROR, "Error in ANY_fromType_aper\n"); |
| return NULL; |
| } |
| |
| msg = _ranap_gen_msg(&pdu); |
| ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RANAP_RANAP_PDU, &pdu); |
| |
| return msg; |
| } |
| |
| |
| RANAP_IE_t *ranap_new_ie(RANAP_ProtocolIE_ID_t id, |
| RANAP_Criticality_t criticality, |
| asn_TYPE_descriptor_t * type, void *sptr) |
| { |
| RANAP_IE_t *buff; |
| int rc; |
| |
| if ((buff = CALLOC(1, sizeof(*buff))) == NULL) { |
| // Possible error on malloc |
| return NULL; |
| } |
| |
| buff->id = id; |
| buff->criticality = criticality; |
| |
| rc = ANY_fromType_aper(&buff->value, type, sptr); |
| if (rc < 0) { |
| LOGP(DRANAP, LOGL_ERROR, "Error in ANY_fromType_aper\n"); |
| FREEMEM(buff); |
| return NULL; |
| } |
| |
| if (asn1_xer_print) |
| if (xer_fprint(stdout, &asn_DEF_RANAP_IE, buff) < 0) { |
| FREEMEM(buff); |
| return NULL; |
| } |
| |
| return buff; |
| } |
| |
| RANAP_ProtocolIE_FieldPair_t *ranap_new_ie_pair(RANAP_ProtocolIE_ID_t id, |
| RANAP_Criticality_t criticality1, |
| asn_TYPE_descriptor_t *type1, void *sptr1, |
| RANAP_Criticality_t criticality2, |
| asn_TYPE_descriptor_t *type2, void *sptr2) |
| { |
| RANAP_ProtocolIE_FieldPair_t *buff; |
| int rc; |
| |
| if ((buff = CALLOC(1, sizeof(*buff))) == NULL) { |
| // Possible error on malloc |
| return NULL; |
| } |
| |
| buff->id = id; |
| buff->firstCriticality = criticality1; |
| buff->secondCriticality = criticality2; |
| |
| rc = ANY_fromType_aper(&buff->firstValue, type1, sptr1); |
| if (rc < 0) { |
| LOGP(DRANAP, LOGL_ERROR, "Error in ANY_fromType_aper\n"); |
| FREEMEM(buff); |
| return NULL; |
| } |
| |
| rc = ANY_fromType_aper(&buff->secondValue, type2, sptr2); |
| if (rc < 0) { |
| LOGP(DRANAP, LOGL_ERROR, "Error in ANY_fromType_aper\n"); |
| ASN_STRUCT_FREE(asn_DEF_RANAP_ProtocolIE_FieldPair, buff); |
| return NULL; |
| } |
| |
| if (asn1_xer_print) |
| if (xer_fprint(stdout, &asn_DEF_RANAP_ProtocolIE_FieldPair, buff) < 0) { |
| ASN_STRUCT_FREE(asn_DEF_RANAP_ProtocolIE_FieldPair, buff); |
| return NULL; |
| } |
| |
| return buff; |
| } |
| |
| int ranap_parse_lai(struct gprs_ra_id *ra_id, const RANAP_LAI_t *lai) |
| { |
| uint8_t *ptr = lai->pLMNidentity.buf; |
| |
| /* Avoid unitialized mem for parse failures, and set rac to zero (which |
| * isn't being parsed). */ |
| *ra_id = (struct gprs_ra_id){ .lac = 0xfffe }; |
| |
| /* TS 25.413 9.2.3.55 */ |
| if (lai->pLMNidentity.size != 3) { |
| LOGP(DRANAP, LOGL_ERROR, "Invalid PLMN Identity size:" |
| " should be 3, is %d\n", lai->pLMNidentity.size); |
| return -1; |
| } |
| |
| ra_id->mcc = (ptr[0] & 0xF) * 100 + |
| (ptr[0] >> 4) * 10 + |
| (ptr[1] & 0xF); |
| ra_id->mnc = (ptr[2] & 0xF) * 10 + |
| (ptr[2] >> 4); |
| if ((ptr[1] >> 4) != 0xF) |
| ra_id->mnc += (ptr[1] >> 4) * 100; |
| |
| if (lai->lAC.size != 2) { |
| LOGP(DRANAP, LOGL_ERROR, "Invalid LAC size:" |
| " should be 2, is %d\n", lai->lAC.size); |
| return -1; |
| } |
| |
| ra_id->lac = asn1str_to_u16(&lai->lAC); |
| |
| /* TS 25.413 9.2.3.6 */ |
| if (ra_id->lac == 0 || ra_id->lac == 0xfffe) { |
| LOGP(DRANAP, LOGL_ERROR, "Invalid LAC: 0x%hx\n", |
| ra_id->lac); |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| void ranap_set_log_area(int log_area) |
| { |
| _ranap_DRANAP = log_area; |
| } |
| |
| int ranap_ip_from_transp_layer_addr(const BIT_STRING_t *in, uint32_t *ip) |
| { |
| uint32_t addr; |
| uint8_t x213[] = {0x35, 0x00, 0x01}; |
| |
| /* Only support IPv4 for now - plain and with x213 encapsulation */ |
| if (in->size == 4) |
| *ip = *(uint32_t *)in->buf; |
| else if ((in->size == 7) && !memcmp(in->buf, x213, sizeof(x213))) |
| *ip = htonl(*(uint32_t *)&in->buf[3]); |
| else |
| return -1; |
| |
| return 0; |
| |
| } |
| |
| int ranap_decode_rab_setupormodifieditemies_fromlist( |
| RANAP_RAB_SetupOrModifiedItemIEs_t *raB_SetupOrModifiedItemIEs, |
| ANY_t *any_p) { |
| |
| RANAP_RAB_SetupOrModifiedItem_t *ranaP_RABSetupOrModifiedItem_p = NULL; |
| int decoded = 0; |
| assert(any_p != NULL); |
| assert(raB_SetupOrModifiedItemIEs != NULL); |
| |
| memset(raB_SetupOrModifiedItemIEs, 0, sizeof(RANAP_RAB_SetupOrModifiedItemIEs_t)); |
| RANAP_DEBUG("Decoding message RANAP_RAB_SetupOrModifiedItemIEs (%s:%d)\n", __FILE__, __LINE__); |
| decoded = ANY_to_type_aper(any_p, &asn_DEF_RANAP_RAB_SetupOrModifiedItem, (void**)&ranaP_RABSetupOrModifiedItem_p); |
| if (decoded < 0) { |
| RANAP_DEBUG("Decoding of IE raB_SetupOrModifiedItem failed\n"); |
| return -1; |
| } |
| if (asn1_xer_print) |
| xer_fprint(stdout, &asn_DEF_RANAP_RAB_SetupOrModifiedItem, ranaP_RABSetupOrModifiedItem_p); |
| memcpy(&raB_SetupOrModifiedItemIEs->raB_SetupOrModifiedItem, ranaP_RABSetupOrModifiedItem_p, sizeof(RANAP_RAB_SetupOrModifiedItem_t)); |
| FREEMEM(ranaP_RABSetupOrModifiedItem_p); |
| |
| return decoded; |
| } |
| |