forked from acouzens/open5gs
233 lines
7.9 KiB
C
233 lines
7.9 KiB
C
/*
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* Copyright (C) 2019 by Sukchan Lee <acetcom@gmail.com>
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*
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* This file is part of Open5GS.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "ngap-build.h"
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#include "ngap-handler.h"
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#include "ngap-path.h"
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void ngap_state_initial(ogs_fsm_t *s, amf_event_t *e)
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{
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ogs_assert(s);
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amf_sm_debug(e);
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OGS_FSM_TRAN(s, &ngap_state_operational);
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}
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void ngap_state_final(ogs_fsm_t *s, amf_event_t *e)
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{
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ogs_assert(s);
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amf_sm_debug(e);
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}
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void ngap_state_operational(ogs_fsm_t *s, amf_event_t *e)
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{
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int r;
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amf_gnb_t *gnb = NULL;
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ogs_pkbuf_t *pkbuf = NULL;
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NGAP_NGAP_PDU_t *pdu = NULL;
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NGAP_InitiatingMessage_t *initiatingMessage = NULL;
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NGAP_SuccessfulOutcome_t *successfulOutcome = NULL;
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NGAP_UnsuccessfulOutcome_t *unsuccessfulOutcome = NULL;
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ogs_assert(s);
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ogs_assert(e);
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amf_sm_debug(e);
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gnb = e->gnb;
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ogs_assert(gnb);
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switch (e->h.id) {
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case OGS_FSM_ENTRY_SIG:
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break;
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case OGS_FSM_EXIT_SIG:
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break;
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case AMF_EVENT_NGAP_MESSAGE:
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pdu = e->ngap.message;
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ogs_assert(pdu);
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if (!gnb->state.ng_setup_success &&
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!(pdu->present == NGAP_NGAP_PDU_PR_initiatingMessage &&
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pdu->choice.initiatingMessage->procedureCode ==
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NGAP_ProcedureCode_id_NGSetup)) {
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break;
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}
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switch (pdu->present) {
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case NGAP_NGAP_PDU_PR_initiatingMessage:
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initiatingMessage = pdu->choice.initiatingMessage;
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ogs_assert(initiatingMessage);
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switch (initiatingMessage->procedureCode) {
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case NGAP_ProcedureCode_id_NGSetup:
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ngap_handle_ng_setup_request(gnb, pdu);
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break;
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case NGAP_ProcedureCode_id_InitialUEMessage:
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ngap_handle_initial_ue_message(gnb, pdu);
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break;
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case NGAP_ProcedureCode_id_UplinkNASTransport:
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ngap_handle_uplink_nas_transport(gnb, pdu);
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break;
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case NGAP_ProcedureCode_id_UERadioCapabilityInfoIndication:
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ngap_handle_ue_radio_capability_info_indication(gnb, pdu);
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break;
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case NGAP_ProcedureCode_id_UEContextReleaseRequest:
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ngap_handle_ue_context_release_request( gnb, pdu);
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break;
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case NGAP_ProcedureCode_id_PathSwitchRequest:
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ngap_handle_path_switch_request(gnb, pdu);
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break;
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case NGAP_ProcedureCode_id_UplinkRANConfigurationTransfer:
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pkbuf = e->pkbuf;
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ogs_assert(pkbuf);
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ngap_handle_uplink_ran_configuration_transfer(gnb, pdu, pkbuf);
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break;
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case NGAP_ProcedureCode_id_HandoverPreparation:
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ngap_handle_handover_required(gnb, pdu);
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break;
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case NGAP_ProcedureCode_id_UplinkRANStatusTransfer:
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ngap_handle_uplink_ran_status_transfer(gnb, pdu);
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break;
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case NGAP_ProcedureCode_id_HandoverNotification:
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ngap_handle_handover_notification(gnb, pdu);
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break;
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case NGAP_ProcedureCode_id_HandoverCancel:
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ngap_handle_handover_cancel(gnb, pdu);
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break;
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case NGAP_ProcedureCode_id_RANConfigurationUpdate:
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ngap_handle_ran_configuration_update(gnb, pdu);
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break;
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case NGAP_ProcedureCode_id_NGReset:
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ngap_handle_ng_reset(gnb, pdu);
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break;
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case NGAP_ProcedureCode_id_ErrorIndication:
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ngap_handle_error_indication(gnb, pdu);
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break;
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default:
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ogs_error("Not implemented(choice:%d, proc:%d)",
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pdu->present, (int)initiatingMessage->procedureCode);
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break;
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}
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break;
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case NGAP_NGAP_PDU_PR_successfulOutcome :
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successfulOutcome = pdu->choice.successfulOutcome;
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ogs_assert(successfulOutcome);
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switch (successfulOutcome->procedureCode) {
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case NGAP_ProcedureCode_id_InitialContextSetup:
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ngap_handle_initial_context_setup_response(gnb, pdu);
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break;
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case NGAP_ProcedureCode_id_PDUSessionResourceSetup:
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ngap_handle_pdu_session_resource_setup_response(gnb, pdu);
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break;
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case NGAP_ProcedureCode_id_PDUSessionResourceModify:
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ngap_handle_pdu_session_resource_modify_response(gnb, pdu);
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break;
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case NGAP_ProcedureCode_id_PDUSessionResourceRelease:
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ngap_handle_pdu_session_resource_release_response(gnb, pdu);
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break;
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case NGAP_ProcedureCode_id_UEContextModification:
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ngap_handle_ue_context_modification_response(gnb, pdu);
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break;
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case NGAP_ProcedureCode_id_UEContextRelease:
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ngap_handle_ue_context_release_complete(gnb, pdu);
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break;
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case NGAP_ProcedureCode_id_HandoverResourceAllocation:
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ngap_handle_handover_request_ack(gnb, pdu);
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break;
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default:
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ogs_error("Not implemented(choice:%d, proc:%d)",
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pdu->present, (int)successfulOutcome->procedureCode);
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break;
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}
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break;
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case NGAP_NGAP_PDU_PR_unsuccessfulOutcome :
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unsuccessfulOutcome = pdu->choice.unsuccessfulOutcome;
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ogs_assert(unsuccessfulOutcome);
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switch (unsuccessfulOutcome->procedureCode) {
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case NGAP_ProcedureCode_id_InitialContextSetup :
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ngap_handle_initial_context_setup_failure(gnb, pdu);
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break;
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case NGAP_ProcedureCode_id_UEContextModification:
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ngap_handle_ue_context_modification_failure(gnb, pdu);
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break;
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case NGAP_ProcedureCode_id_HandoverResourceAllocation :
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ngap_handle_handover_failure(gnb, pdu);
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break;
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default:
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ogs_error("Not implemented(choice:%d, proc:%d)",
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pdu->present, (int)unsuccessfulOutcome->procedureCode);
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break;
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}
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break;
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default:
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ogs_error("Not implemented(choice:%d)", pdu->present);
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break;
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}
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break;
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case AMF_EVENT_NGAP_TIMER:
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switch (e->h.timer_id) {
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case AMF_TIMER_NG_DELAYED_SEND:
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ogs_assert(e->ran_ue);
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ogs_assert(e->pkbuf);
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r = ngap_send_to_ran_ue(e->ran_ue, e->pkbuf);
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ogs_expect(r == OGS_OK);
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ogs_assert(r != OGS_ERROR);
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ogs_timer_delete(e->timer);
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break;
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default:
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ogs_error("Unknown timer[%s:%d]",
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amf_timer_get_name(e->h.timer_id), e->h.timer_id);
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break;
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}
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break;
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default:
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ogs_error("Unknown event %s", amf_event_get_name(e));
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break;
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}
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}
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void ngap_state_exception(ogs_fsm_t *s, amf_event_t *e)
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{
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ogs_assert(s);
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ogs_assert(e);
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amf_sm_debug(e);
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switch (e->h.id) {
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case OGS_FSM_ENTRY_SIG:
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break;
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case OGS_FSM_EXIT_SIG:
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break;
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default:
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ogs_error("Unknown event %s", amf_event_get_name(e));
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break;
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}
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}
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