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/*
* Copyright (C) 2019-2023 by Sukchan Lee <acetcom@gmail.com>
*
* This file is part of Open5GS.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "sbi-path.h"
#include "nnrf-handler.h"
void pcf_nnrf_handle_nf_discover(
ogs_sbi_xact_t *xact, ogs_sbi_message_t *recvmsg)
{
int r;
ogs_sbi_nf_instance_t *nf_instance = NULL;
ogs_sbi_object_t *sbi_object = NULL;
ogs_pool_id_t sbi_object_id = OGS_INVALID_POOL_ID;
ogs_sbi_service_type_e service_type = OGS_SBI_SERVICE_TYPE_NULL;
ogs_sbi_discovery_option_t *discovery_option = NULL;
ogs_sbi_stream_t *stream = NULL;
pcf_ue_t *pcf_ue = NULL;
pcf_sess_t *sess = NULL;
OpenAPI_nf_type_e target_nf_type = OpenAPI_nf_type_NULL;
OpenAPI_nf_type_e requester_nf_type = OpenAPI_nf_type_NULL;
OpenAPI_search_result_t *SearchResult = NULL;
ogs_assert(recvmsg);
ogs_assert(xact);
sbi_object = xact->sbi_object;
ogs_assert(sbi_object);
service_type = xact->service_type;
ogs_assert(service_type);
target_nf_type = ogs_sbi_service_type_to_nf_type(service_type);
ogs_assert(target_nf_type);
requester_nf_type = xact->requester_nf_type;
ogs_assert(requester_nf_type);
sbi_object_id = xact->sbi_object_id;
ogs_assert(sbi_object_id >= OGS_MIN_POOL_ID &&
sbi_object_id <= OGS_MAX_POOL_ID);
discovery_option = xact->discovery_option;
if (xact->assoc_stream_id >= OGS_MIN_POOL_ID &&
xact->assoc_stream_id <= OGS_MAX_POOL_ID)
stream = ogs_sbi_stream_find_by_id(xact->assoc_stream_id);
SearchResult = recvmsg->SearchResult;
if (!SearchResult) {
ogs_error("No SearchResult");
return;
}
if (sbi_object->type == OGS_SBI_OBJ_UE_TYPE) {
pcf_ue = pcf_ue_find_by_id(sbi_object_id);
ogs_assert(pcf_ue);
} else if (sbi_object->type == OGS_SBI_OBJ_SESS_TYPE) {
sess = pcf_sess_find_by_id(sbi_object_id);
ogs_assert(sess);
pcf_ue = pcf_ue_find_by_id(sess->pcf_ue_id);
ogs_assert(pcf_ue);
} else {
ogs_fatal("(NF discover) Not implemented [%s:%d]",
ogs_sbi_service_type_to_name(service_type), sbi_object->type);
ogs_assert_if_reached();
}
ogs_nnrf_disc_handle_nf_discover_search_result(SearchResult);
nf_instance = ogs_sbi_nf_instance_find_by_discovery_param(
target_nf_type, requester_nf_type, discovery_option);
if (!nf_instance) {
ogs_error("[%s:%d] (NF discover) No [%s:%s]",
pcf_ue ? pcf_ue->supi : "Unknown",
sess ? sess->psi : 0,
ogs_sbi_service_type_to_name(service_type),
OpenAPI_nf_type_ToString(requester_nf_type));
return;
}
OGS_SBI_SETUP_NF_INSTANCE(
sbi_object->service_type_array[service_type], nf_instance);
switch (service_type) {
case OGS_SBI_SERVICE_TYPE_NPCF_POLICYAUTHORIZATION:
ogs_sbi_xact_remove(xact);
ogs_assert(sess);
ogs_assert(stream);
r = pcf_sess_sbi_discover_and_send(
OGS_SBI_SERVICE_TYPE_NBSF_MANAGEMENT, NULL,
pcf_nbsf_management_build_register,
sess, stream, nf_instance);
ogs_expect(r == OGS_OK);
ogs_assert(r != OGS_ERROR);
break;
default:
ogs_assert(xact->request);
ogs_expect(true == pcf_sbi_send_request(nf_instance, xact));
break;
}
}
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