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@ -257,6 +257,10 @@ s1ap_nas_transport::handle_uplink_nas_transport(LIBLTE_S1AP_MESSAGE_UPLINKNASTRA
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m_s1ap_log->info("Uplink NAS: Authentication Failure\n");
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m_s1ap_log->info("Uplink NAS: Authentication Failure\n");
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handle_authentication_failure(nas_msg, ue_ctx, reply_buffer, reply_flag);
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handle_authentication_failure(nas_msg, ue_ctx, reply_buffer, reply_flag);
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break;
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break;
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/* case LIBLTE_MME_MSG_TYPE_DETACH_REQUEST:
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m_s1ap_log->info("Uplink NAS: Detach Request\n");
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handle_detach_request(nas_msg, ue_ctx, reply_buffer, reply_flag);
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break;*/
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default:
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default:
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m_s1ap_log->warning("Unhandled NAS integrity protected message 0x%x\n", msg_type );
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m_s1ap_log->warning("Unhandled NAS integrity protected message 0x%x\n", msg_type );
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m_s1ap_log->console("Unhandled NAS integrity protected message 0x%x\n", msg_type );
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m_s1ap_log->console("Unhandled NAS integrity protected message 0x%x\n", msg_type );
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@ -601,6 +605,11 @@ s1ap_nas_transport::handle_nas_guti_attach_request( uint32_t enb_ue_s1ap_id,
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//Store context based on MME UE S1AP id
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//Store context based on MME UE S1AP id
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m_s1ap->add_ue_ctx_to_mme_ue_s1ap_id_map(ue_ctx);
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m_s1ap->add_ue_ctx_to_mme_ue_s1ap_id_map(ue_ctx);
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//Re-generate K_eNB
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liblte_security_generate_k_enb(emm_ctx->security_ctxt.k_asme, emm_ctx->security_ctxt.ul_nas_count, emm_ctx->security_ctxt.k_enb);
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m_s1ap_log->info("Generating KeNB with UL NAS COUNT: %d\n",emm_ctx->security_ctxt.ul_nas_count);
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//Create session request
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//Create session request
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m_s1ap_log->console("GUTI Attach -- NAS Integrity OK.");
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m_s1ap_log->console("GUTI Attach -- NAS Integrity OK.");
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m_mme_gtpc->send_create_session_request(emm_ctx->imsi);
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m_mme_gtpc->send_create_session_request(emm_ctx->imsi);
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@ -972,14 +981,6 @@ s1ap_nas_transport::handle_identity_response(srslte::byte_buffer_t *nas_msg, ue_
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ue_emm_ctx_t *emm_ctx = &ue_ctx->emm_ctx;
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ue_emm_ctx_t *emm_ctx = &ue_ctx->emm_ctx;
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ue_ecm_ctx_t *ecm_ctx = &ue_ctx->ecm_ctx;
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ue_ecm_ctx_t *ecm_ctx = &ue_ctx->ecm_ctx;
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//Check if EMM context already exists
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//ue_ctx_t *ue_tmp_ptr = m_s1ap->find_ue_ctx_from_imsi(imsi);
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//if(ue_tmp_ptr != NULL)
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//{
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// m_s1ap_log->warning("Unkonw GUTI, but UE's EMM context present.\n");
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// m_s1ap->delete_ue_emm_ctx(imsi);
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//}
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m_s1ap_log->info("Id Response -- IMSI: %015lu\n", imsi);
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m_s1ap_log->info("Id Response -- IMSI: %015lu\n", imsi);
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m_s1ap_log->console("Id Response -- IMSI: %015lu\n", imsi);
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m_s1ap_log->console("Id Response -- IMSI: %015lu\n", imsi);
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@ -1039,22 +1040,6 @@ s1ap_nas_transport::handle_tracking_area_update_request(srslte::byte_buffer_t *n
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//m_s1ap_log->console("Tracking area accept to MME-UE S1AP Id %d\n", ue_ctx->mme_ue_s1ap_id);
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//m_s1ap_log->console("Tracking area accept to MME-UE S1AP Id %d\n", ue_ctx->mme_ue_s1ap_id);
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LIBLTE_MME_TRACKING_AREA_UPDATE_ACCEPT_MSG_STRUCT tau_acc;
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LIBLTE_MME_TRACKING_AREA_UPDATE_ACCEPT_MSG_STRUCT tau_acc;
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/*
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bool t3412_present;
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bool guti_present;
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bool tai_list_present;
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bool eps_bearer_context_status_present;
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bool lai_present;
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bool ms_id_present;
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bool emm_cause_present;
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bool t3402_present;
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bool t3423_present;
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bool equivalent_plmns_present;
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bool emerg_num_list_present;
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bool eps_network_feature_support_present;
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bool additional_update_result_present;
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bool t3412_ext_present;
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*/
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//Get decimal MCC and MNC
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//Get decimal MCC and MNC
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uint32_t mcc = 0;
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uint32_t mcc = 0;
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mcc += 0x000F & m_s1ap->m_s1ap_args.mcc;
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mcc += 0x000F & m_s1ap->m_s1ap_args.mcc;
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@ -1105,46 +1090,6 @@ s1ap_nas_transport::handle_tracking_area_update_request(srslte::byte_buffer_t *n
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tau_acc.additional_update_result_present = false;
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tau_acc.additional_update_result_present = false;
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tau_acc.t3412_ext_present = false;
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tau_acc.t3412_ext_present = false;
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//eps_update_result = LIBLTE_MME_TR
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/*
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typedef struct{
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LIBLTE_MME_GPRS_TIMER_STRUCT t3412;
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LIBLTE_MME_EPS_MOBILE_ID_STRUCT guti;
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LIBLTE_MME_TRACKING_AREA_IDENTITY_LIST_STRUCT tai_list;
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LIBLTE_MME_EPS_BEARER_CONTEXT_STATUS_STRUCT eps_bearer_context_status;
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LIBLTE_MME_LOCATION_AREA_ID_STRUCT lai;
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LIBLTE_MME_MOBILE_ID_STRUCT ms_id;
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LIBLTE_MME_GPRS_TIMER_STRUCT t3402;
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LIBLTE_MME_GPRS_TIMER_STRUCT t3423;
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LIBLTE_MME_PLMN_LIST_STRUCT equivalent_plmns;
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LIBLTE_MME_EMERGENCY_NUMBER_LIST_STRUCT emerg_num_list;
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LIBLTE_MME_EPS_NETWORK_FEATURE_SUPPORT_STRUCT eps_network_feature_support;
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LIBLTE_MME_GPRS_TIMER_3_STRUCT t3412_ext;
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LIBLTE_MME_ADDITIONAL_UPDATE_RESULT_ENUM additional_update_result;
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uint8 eps_update_result;
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uint8 emm_cause;
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bool t3412_present;
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bool guti_present;
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bool tai_list_present;
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bool eps_bearer_context_status_present;
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bool lai_present;
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bool ms_id_present;
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bool emm_cause_present;
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bool t3402_present;
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bool t3423_present;
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bool equivalent_plmns_present;
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bool emerg_num_list_present;
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bool eps_network_feature_support_present;
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bool additional_update_result_present;
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bool t3412_ext_present;v
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}LIBLTE_MME_TRACKING_AREA_UPDATE_ACCEPT_MSG_STRUCT;
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*/
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//Send reply to eNB
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//*reply_flag = true;
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return true;
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return true;
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}
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}
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@ -1256,7 +1201,6 @@ s1ap_nas_transport::handle_authentication_failure(srslte::byte_buffer_t *nas_msg
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m_s1ap_log->info("User not found. IMSI %015lu\n", emm_ctx->imsi);
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m_s1ap_log->info("User not found. IMSI %015lu\n", emm_ctx->imsi);
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return false;
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return false;
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}
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}
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//Pack NAS Authentication Request in Downlink NAS Transport msg
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//Pack NAS Authentication Request in Downlink NAS Transport msg
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pack_authentication_request(reply_msg, ecm_ctx->enb_ue_s1ap_id, ecm_ctx->mme_ue_s1ap_id, autn, rand);
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pack_authentication_request(reply_msg, ecm_ctx->enb_ue_s1ap_id, ecm_ctx->mme_ue_s1ap_id, autn, rand);
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@ -1269,9 +1213,13 @@ s1ap_nas_transport::handle_authentication_failure(srslte::byte_buffer_t *nas_msg
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break;
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break;
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}
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}
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return true;
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return true;
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}
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}
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/*
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bool
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s1ap_nas_transport::handle_detach_request(nas_msg, ue_ctx, reply_buffer, reply_flag)
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{
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return true;
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}*/
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/*Packing/Unpacking helper functions*/
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/*Packing/Unpacking helper functions*/
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bool
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bool
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s1ap_nas_transport::pack_authentication_request(srslte::byte_buffer_t *reply_msg, uint32_t enb_ue_s1ap_id, uint32_t next_mme_ue_s1ap_id, uint8_t *autn, uint8_t *rand)
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s1ap_nas_transport::pack_authentication_request(srslte::byte_buffer_t *reply_msg, uint32_t enb_ue_s1ap_id, uint32_t next_mme_ue_s1ap_id, uint8_t *autn, uint8_t *rand)
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