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@ -428,63 +428,41 @@ bool s1ap::setup_s1()
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{
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uint32_t tmp32;
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uint16_t tmp16;
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srslte::byte_buffer_t msg;
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LIBLTE_S1AP_S1AP_PDU_STRUCT pdu;
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bzero(&pdu, sizeof(LIBLTE_S1AP_S1AP_PDU_STRUCT));
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pdu.choice_type = LIBLTE_S1AP_S1AP_PDU_CHOICE_INITIATINGMESSAGE;
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LIBLTE_S1AP_INITIATINGMESSAGE_STRUCT* init = &pdu.choice.initiatingMessage;
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init->procedureCode = LIBLTE_S1AP_PROC_ID_S1SETUP;
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init->choice_type = LIBLTE_S1AP_INITIATINGMESSAGE_CHOICE_S1SETUPREQUEST;
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LIBLTE_S1AP_MESSAGE_S1SETUPREQUEST_STRUCT* s1setup = &init->choice.S1SetupRequest;
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s1setup->ext = false;
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s1setup->CSG_IdList_present = false;
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s1setup->Global_ENB_ID.ext = false;
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s1setup->Global_ENB_ID.iE_Extensions_present = false;
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uint32_t plmn;
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s1ap_mccmnc_to_plmn(args.mcc, args.mnc, &plmn);
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tmp32 = htonl(plmn);
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s1setup->Global_ENB_ID.pLMNidentity.buffer[0] = ((uint8_t*)&tmp32)[1];
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s1setup->Global_ENB_ID.pLMNidentity.buffer[1] = ((uint8_t*)&tmp32)[2];
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s1setup->Global_ENB_ID.pLMNidentity.buffer[2] = ((uint8_t*)&tmp32)[3];
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plmn = htonl(plmn);
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s1setup->Global_ENB_ID.ext = false;
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s1setup->Global_ENB_ID.eNB_ID.ext = false;
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s1setup->Global_ENB_ID.eNB_ID.choice_type = LIBLTE_S1AP_ENB_ID_CHOICE_MACROENB_ID;
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tmp32 = htonl(args.enb_id);
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uint8_t enb_id_bits[4 * 8];
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liblte_unpack((uint8_t*)&tmp32, 4, enb_id_bits);
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memcpy(s1setup->Global_ENB_ID.eNB_ID.choice.macroENB_ID.buffer,
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s1ap_pdu_c pdu;
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pdu.set_init_msg().load_info_obj(ASN1_S1AP_ID_S1_SETUP);
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s1_setup_request_ies_container& container = pdu.init_msg().value.s1_setup_request().protocol_ies;
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container.global_enb_id.value.plm_nid[0] = ((uint8_t*)&plmn)[1];
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container.global_enb_id.value.plm_nid[1] = ((uint8_t*)&plmn)[2];
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container.global_enb_id.value.plm_nid[2] = ((uint8_t*)&plmn)[3];
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container.global_enb_id.value.enb_id.set_macro_enb_id();
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memcpy(container.global_enb_id.value.enb_id.macro_enb_id().data(),
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&enb_id_bits[32 - LIBLTE_S1AP_MACROENB_ID_BIT_STRING_LEN],
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LIBLTE_S1AP_MACROENB_ID_BIT_STRING_LEN);
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s1setup->eNBname_present = true;
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s1setup->eNBname.ext = false;
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if (args.enb_name.length() >= 150) {
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args.enb_name.resize(150 - 1);
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}
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memcpy(s1setup->eNBname.buffer, args.enb_name.c_str(), args.enb_name.length());
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s1setup->eNBname.n_octets = args.enb_name.length();
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container.enbname_present = true;
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container.enbname.value.from_string(args.enb_name);
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s1setup->SupportedTAs.len = 1;
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s1setup->SupportedTAs.buffer[0].ext = false;
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s1setup->SupportedTAs.buffer[0].iE_Extensions_present = false;
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container.supported_tas.value.resize(1);
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tmp16 = htons(args.tac);
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memcpy(s1setup->SupportedTAs.buffer[0].tAC.buffer, (uint8_t*)&tmp16, 2);
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s1setup->SupportedTAs.buffer[0].broadcastPLMNs.len = 1;
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tmp32 = htonl(plmn);
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s1setup->SupportedTAs.buffer[0].broadcastPLMNs.buffer[0].buffer[0] = ((uint8_t*)&tmp32)[1];
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s1setup->SupportedTAs.buffer[0].broadcastPLMNs.buffer[0].buffer[1] = ((uint8_t*)&tmp32)[2];
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s1setup->SupportedTAs.buffer[0].broadcastPLMNs.buffer[0].buffer[2] = ((uint8_t*)&tmp32)[3];
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memcpy(container.supported_tas.value[0].tac.data(), (uint8_t*)&tmp16, 2);
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container.supported_tas.value[0].broadcast_plmns.resize(1);
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container.supported_tas.value[0].broadcast_plmns[0][0] = ((uint8_t*)&plmn)[1];
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container.supported_tas.value[0].broadcast_plmns[0][1] = ((uint8_t*)&plmn)[2];
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container.supported_tas.value[0].broadcast_plmns[0][2] = ((uint8_t*)&plmn)[3];
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s1setup->DefaultPagingDRX.ext = false;
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s1setup->DefaultPagingDRX.e = LIBLTE_S1AP_PAGINGDRX_V128; // Todo: add to args, config file
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container.default_paging_drx.value.value = asn1::s1ap::paging_drx_opts::v128; // Todo: add to args, config file
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return sctp_send_s1ap_pdu(&pdu, 0, "s1SetupRequest");
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return sctp_send_s1ap_pdu(pdu, 0, "s1SetupRequest");
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}
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/*******************************************************************************
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@ -851,7 +829,6 @@ bool s1ap::send_initialuemessage(uint16_t rnti,
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if (!mme_connected) {
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return false;
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}
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srslte::byte_buffer_t msg;
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s1ap_pdu_c tx_pdu;
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tx_pdu.set_init_msg().load_info_obj(ASN1_S1AP_ID_INIT_UE_MSG);
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@ -996,7 +973,6 @@ bool s1ap::send_initial_ctxt_setup_response(uint16_t rnti, const asn1::s1ap::ini
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for (uint32_t j = 0; j < 4; ++j) {
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item.transport_layer_address.data()[j] = addr[3 - j];
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}
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// memcpy(item.transport_layer_address.data(), addr, 4);
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}
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return sctp_send_s1ap_pdu(tx_pdu, rnti, "InitialContextSetupResponse");
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@ -1024,7 +1000,6 @@ bool s1ap::send_erab_setup_response(uint16_t rnti, const e_rab_setup_resp_s& res
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for (uint32_t j = 0; j < 4; ++j) {
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item.transport_layer_address.data()[j] = addr[3 - j];
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}
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// memcpy(item.transport_layer_address.data(), addr, 4);
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}
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}
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@ -1040,33 +1015,16 @@ bool s1ap::send_initial_ctxt_setup_failure(uint16_t rnti)
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if (!mme_connected) {
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return false;
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}
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srslte::unique_byte_buffer_t buf = srslte::allocate_unique_buffer(*pool);
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if (!buf) {
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s1ap_log->error("Fatal Error: Couldn't allocate buffer in s1ap::send_initial_ctxt_setup_failure().\n");
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return false;
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}
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LIBLTE_S1AP_S1AP_PDU_STRUCT tx_pdu;
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tx_pdu.ext = false;
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tx_pdu.choice_type = LIBLTE_S1AP_S1AP_PDU_CHOICE_UNSUCCESSFULOUTCOME;
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LIBLTE_S1AP_UNSUCCESSFULOUTCOME_STRUCT* unsucc = &tx_pdu.choice.unsuccessfulOutcome;
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unsucc->procedureCode = LIBLTE_S1AP_PROC_ID_INITIALCONTEXTSETUP;
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unsucc->choice_type = LIBLTE_S1AP_UNSUCCESSFULOUTCOME_CHOICE_INITIALCONTEXTSETUPFAILURE;
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LIBLTE_S1AP_MESSAGE_INITIALCONTEXTSETUPFAILURE_STRUCT* fail = &unsucc->choice.InitialContextSetupFailure;
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fail->ext = false;
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fail->CriticalityDiagnostics_present = false;
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fail->MME_UE_S1AP_ID.MME_UE_S1AP_ID = get_user_ctxt(rnti)->MME_UE_S1AP_ID;
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fail->eNB_UE_S1AP_ID.ENB_UE_S1AP_ID = get_user_ctxt(rnti)->eNB_UE_S1AP_ID;
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s1ap_pdu_c tx_pdu;
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tx_pdu.set_unsuccessful_outcome().load_info_obj(ASN1_S1AP_ID_INIT_CONTEXT_SETUP);
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auto& container = tx_pdu.unsuccessful_outcome().value.init_context_setup_request().protocol_ies;
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fail->Cause.ext = false;
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fail->Cause.choice_type = LIBLTE_S1AP_CAUSE_CHOICE_RADIONETWORK;
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fail->Cause.choice.radioNetwork.ext = false;
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fail->Cause.choice.radioNetwork.e = LIBLTE_S1AP_CAUSERADIONETWORK_UNSPECIFIED;
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container.enb_ue_s1ap_id.value = get_user_ctxt(rnti)->MME_UE_S1AP_ID;
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container.mme_ue_s1ap_id.value = get_user_ctxt(rnti)->eNB_UE_S1AP_ID;
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container.cause.value.set_radio_network().value = cause_radio_network_opts::unspecified;
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return sctp_send_s1ap_pdu(&tx_pdu, rnti, "InitialContextSetupFailure");
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return sctp_send_s1ap_pdu(tx_pdu, rnti, "InitialContextSetupFailure");
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}
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bool s1ap::send_uectxmodifyresp(uint16_t rnti)
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@ -1074,31 +1032,15 @@ bool s1ap::send_uectxmodifyresp(uint16_t rnti)
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if (!mme_connected) {
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return false;
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}
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srslte::unique_byte_buffer_t buf = srslte::allocate_unique_buffer(*pool);
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if (!buf) {
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s1ap_log->error("Fatal Error: Couldn't allocate buffer in s1ap::send_uectxmodifyresp().\n");
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return false;
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}
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LIBLTE_S1AP_S1AP_PDU_STRUCT tx_pdu;
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tx_pdu.ext = false;
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tx_pdu.choice_type = LIBLTE_S1AP_S1AP_PDU_CHOICE_SUCCESSFULOUTCOME;
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LIBLTE_S1AP_SUCCESSFULOUTCOME_STRUCT* succ = &tx_pdu.choice.successfulOutcome;
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succ->procedureCode = LIBLTE_S1AP_PROC_ID_UECONTEXTMODIFICATION;
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succ->choice_type = LIBLTE_S1AP_SUCCESSFULOUTCOME_CHOICE_UECONTEXTMODIFICATIONRESPONSE;
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LIBLTE_S1AP_MESSAGE_UECONTEXTMODIFICATIONRESPONSE_STRUCT* resp = &succ->choice.UEContextModificationResponse;
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resp->ext = false;
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resp->CriticalityDiagnostics_present = false;
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resp->MME_UE_S1AP_ID.MME_UE_S1AP_ID = get_user_ctxt(rnti)->MME_UE_S1AP_ID;
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resp->eNB_UE_S1AP_ID.ENB_UE_S1AP_ID = get_user_ctxt(rnti)->eNB_UE_S1AP_ID;
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s1ap_pdu_c tx_pdu;
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tx_pdu.set_successful_outcome().load_info_obj(ASN1_S1AP_ID_UE_CONTEXT_MOD);
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auto& container = tx_pdu.successful_outcome().value.ue_context_mod_request().protocol_ies;
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liblte_s1ap_pack_s1ap_pdu(&tx_pdu, (LIBLTE_BYTE_MSG_STRUCT*)buf.get());
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s1ap_log->info_hex(buf->msg, buf->N_bytes, "Sending ContextModificationFailure for RNTI:0x%x", rnti);
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container.enb_ue_s1ap_id.value = get_user_ctxt(rnti)->MME_UE_S1AP_ID;
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container.mme_ue_s1ap_id.value = get_user_ctxt(rnti)->eNB_UE_S1AP_ID;
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return sctp_send_s1ap_pdu(&tx_pdu, rnti, "ContextModificationFailure");
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return sctp_send_s1ap_pdu(tx_pdu, rnti, "UEContextModificationResponse");
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}
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bool s1ap::send_uectxmodifyfailure(uint16_t rnti, const cause_c& cause)
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