99 lines
3.4 KiB
C
99 lines
3.4 KiB
C
/*
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* Copyright (C) 2019-2022 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 "sbi-path.h"
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#include "nas-path.h"
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#include "ngap-path.h"
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#include "nnrf-handler.h"
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void amf_nnrf_handle_nf_discover(
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ogs_sbi_xact_t *xact, ogs_sbi_message_t *recvmsg)
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{
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ogs_sbi_nf_instance_t *nf_instance = NULL;
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ogs_sbi_object_t *sbi_object = NULL;
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ogs_sbi_service_type_e service_type = OGS_SBI_SERVICE_TYPE_NULL;
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ogs_sbi_discovery_option_t *discovery_option = NULL;
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OpenAPI_search_result_t *SearchResult = NULL;
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ogs_assert(recvmsg);
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ogs_assert(xact);
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sbi_object = xact->sbi_object;
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ogs_assert(sbi_object);
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service_type = xact->service_type;
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ogs_assert(service_type);
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discovery_option = xact->discovery_option;
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SearchResult = recvmsg->SearchResult;
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if (!SearchResult) {
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ogs_error("No SearchResult");
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return;
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}
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ogs_nnrf_handle_nf_discover_search_result(SearchResult);
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amf_sbi_select_nf(sbi_object, service_type, discovery_option);
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nf_instance = sbi_object->service_type_array[service_type].nf_instance;
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if (!nf_instance) {
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amf_ue_t *amf_ue = NULL;
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amf_sess_t *sess = NULL;
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ogs_assert(sbi_object->type > OGS_SBI_OBJ_BASE &&
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sbi_object->type < OGS_SBI_OBJ_TOP);
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switch(sbi_object->type) {
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case OGS_SBI_OBJ_UE_TYPE:
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amf_ue = (amf_ue_t *)sbi_object;
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ogs_assert(amf_ue);
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ogs_error("[%s] (NF discover) No [%s]", amf_ue->suci,
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ogs_sbi_service_type_to_name(service_type));
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ogs_assert(OGS_OK ==
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nas_5gs_send_gmm_reject_from_sbi(amf_ue,
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OGS_SBI_HTTP_STATUS_GATEWAY_TIMEOUT));
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break;
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case OGS_SBI_OBJ_SESS_TYPE:
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sess = (amf_sess_t *)sbi_object;
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ogs_assert(sess);
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ogs_error("[%d:%d] (NF discover) No [%s]", sess->psi, sess->pti,
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ogs_sbi_service_type_to_name(service_type));
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if (sess->payload_container_type) {
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ogs_assert(OGS_OK ==
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nas_5gs_send_back_gsm_message(sess,
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OGS_5GMM_CAUSE_PAYLOAD_WAS_NOT_FORWARDED,
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AMF_NAS_BACKOFF_TIME));
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} else {
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ogs_assert(OGS_OK ==
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ngap_send_error_indication2(amf_ue,
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NGAP_Cause_PR_transport,
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NGAP_CauseTransport_transport_resource_unavailable));
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}
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break;
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default:
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ogs_fatal("(NF discover) Not implemented [%s:%d]",
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ogs_sbi_service_type_to_name(service_type), sbi_object->type);
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ogs_assert_if_reached();
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}
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return;
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}
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ogs_expect(true == amf_sbi_send_request(nf_instance, xact));
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}
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