2020-06-04 18:12:05 +00:00
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/*
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* Copyright (C) 2019,2020 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 "ogs-sbi.h"
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2020-06-17 05:22:28 +00:00
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static ogs_sbi_nf_instance_t *find_or_discover_nf_instance(
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ogs_sbi_object_t *sbi_object, bool *nrf, bool *nf)
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{
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ogs_assert(sbi_object);
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ogs_assert(sbi_object->nf_type);
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ogs_assert(sbi_object->nf_state_registered);
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ogs_assert(sbi_object->client_wait.duration);
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ogs_assert(nrf);
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ogs_assert(nf);
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if (!OGS_SBI_NF_INSTANCE_GET(sbi_object->nf_types, OpenAPI_nf_type_NRF))
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*nrf = ogs_sbi_nf_types_associate(sbi_object->nf_types,
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OpenAPI_nf_type_NRF, sbi_object->nf_state_registered);
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if (!OGS_SBI_NF_INSTANCE_GET(sbi_object->nf_types,
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sbi_object->nf_type))
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*nf = ogs_sbi_nf_types_associate(sbi_object->nf_types,
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sbi_object->nf_type, sbi_object->nf_state_registered);
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if (*nrf == false && *nf == false) {
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ogs_error("Cannot discover [%s]",
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OpenAPI_nf_type_ToString(sbi_object->nf_type));
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return NULL;
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}
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if (*nf == false) {
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ogs_warn("[%s] Try to discover",
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OpenAPI_nf_type_ToString(sbi_object->nf_type));
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ogs_timer_start(sbi_object->client_wait.timer,
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sbi_object->client_wait.duration);
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ogs_nnrf_disc_send_nf_discover(
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sbi_object->nf_types[OpenAPI_nf_type_NRF].nf_instance,
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sbi_object->nf_type, sbi_object);
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return NULL;
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}
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return sbi_object->nf_types[sbi_object->nf_type].nf_instance;
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}
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void ogs_sbi_send(
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2020-07-09 05:38:09 +00:00
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ogs_sbi_nf_instance_t *nf_instance, ogs_sbi_object_t *sbi_object)
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2020-06-17 05:22:28 +00:00
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{
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ogs_sbi_request_t *request = NULL;
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2020-07-09 05:38:09 +00:00
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ogs_sbi_client_t *client = NULL;
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2020-06-17 05:22:28 +00:00
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ogs_assert(sbi_object);
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request = sbi_object->request;
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ogs_assert(request);
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ogs_assert(sbi_object->client_wait.duration);
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2020-07-09 05:38:09 +00:00
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ogs_assert(sbi_object->client_cb);
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2020-06-17 05:22:28 +00:00
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ogs_assert(nf_instance);
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2020-07-09 05:38:09 +00:00
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if (request->h.uri == NULL) {
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client = ogs_sbi_client_find_by_service_name(nf_instance,
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request->h.service.name, request->h.api.version);
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if (!client) {
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ogs_error("[%s] Cannot find client [%s:%s]",
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nf_instance->id,
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request->h.service.name, request->h.api.version);
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return;
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}
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} else {
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ogs_sockaddr_t *addr = NULL;
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char buf[OGS_ADDRSTRLEN];
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addr = ogs_sbi_getaddr_from_uri(request->h.uri);
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if (!addr) {
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ogs_error("[%s] Invalid URL [%s]", nf_instance->id, request->h.uri);
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return;
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}
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client = ogs_sbi_client_find(addr);
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if (!client) {
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ogs_error("[%s] Cannot find client [%s:%d]", nf_instance->id,
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OGS_ADDR(addr, buf), OGS_PORT(addr));
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ogs_freeaddrinfo(addr);
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return;
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}
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ogs_freeaddrinfo(addr);
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}
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2020-06-17 05:22:28 +00:00
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ogs_timer_start(sbi_object->client_wait.timer,
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sbi_object->client_wait.duration);
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2020-07-09 05:38:09 +00:00
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ogs_sbi_client_send_request(
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client, sbi_object->client_cb, request, sbi_object);
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2020-06-17 05:22:28 +00:00
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}
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bool ogs_sbi_discover_and_send(
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OpenAPI_nf_type_e nf_type, ogs_sbi_object_t *sbi_object, void *data,
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ogs_sbi_build_f build)
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{
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bool nrf = true;
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bool nf = true;
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ogs_sbi_nf_instance_t *nf_instance = NULL;
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ogs_assert(sbi_object);
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ogs_assert(nf_type);
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ogs_assert(build);
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2020-06-22 03:07:14 +00:00
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sbi_object->running = true;
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2020-06-17 05:22:28 +00:00
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sbi_object->nf_type = nf_type;
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if (sbi_object->request)
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ogs_sbi_request_free(sbi_object->request);
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sbi_object->request = (*build)(sbi_object, data);
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nf_instance = find_or_discover_nf_instance(sbi_object, &nrf, &nf);
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if (nrf == false && nf == false) return false;
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if (!nf_instance) return true;
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2020-07-09 05:38:09 +00:00
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ogs_sbi_send(nf_instance, sbi_object);
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2020-06-17 05:22:28 +00:00
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return true;
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}
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2020-06-04 18:12:05 +00:00
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void ogs_nnrf_nfm_send_nf_register(ogs_sbi_nf_instance_t *nf_instance)
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{
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ogs_sbi_request_t *request = NULL;
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ogs_sbi_client_t *client = NULL;
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ogs_assert(nf_instance);
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client = nf_instance->client;
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ogs_assert(client);
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request = ogs_nnrf_nfm_build_register(nf_instance);
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ogs_assert(request);
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2020-07-09 05:38:09 +00:00
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ogs_sbi_client_send_request(client, client->cb, request, nf_instance);
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2020-06-17 05:22:28 +00:00
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ogs_sbi_request_free(request);
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2020-06-04 18:12:05 +00:00
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}
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void ogs_nnrf_nfm_send_nf_update(ogs_sbi_nf_instance_t *nf_instance)
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{
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ogs_sbi_request_t *request = NULL;
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ogs_sbi_client_t *client = NULL;
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ogs_assert(nf_instance);
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client = nf_instance->client;
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ogs_assert(client);
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request = ogs_nnrf_nfm_build_update(nf_instance);
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ogs_assert(request);
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2020-07-09 05:38:09 +00:00
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ogs_sbi_client_send_request(client, client->cb, request, nf_instance);
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2020-06-17 05:22:28 +00:00
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ogs_sbi_request_free(request);
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2020-06-04 18:12:05 +00:00
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}
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void ogs_nnrf_nfm_send_nf_de_register(ogs_sbi_nf_instance_t *nf_instance)
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{
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ogs_sbi_request_t *request = NULL;
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ogs_sbi_client_t *client = NULL;
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ogs_assert(nf_instance);
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client = nf_instance->client;
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ogs_assert(client);
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request = ogs_nnrf_nfm_build_de_register(nf_instance);
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ogs_assert(request);
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2020-07-09 05:38:09 +00:00
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ogs_sbi_client_send_request(client, client->cb, request, nf_instance);
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2020-06-17 05:22:28 +00:00
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ogs_sbi_request_free(request);
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2020-06-04 18:12:05 +00:00
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}
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void ogs_nnrf_nfm_send_nf_status_subscribe(ogs_sbi_client_t *client,
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OpenAPI_nf_type_e nf_type, char *nf_instance_id)
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{
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ogs_sbi_request_t *request = NULL;
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ogs_sbi_subscription_t *subscription = NULL;
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ogs_assert(client);
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subscription = ogs_sbi_subscription_add();
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ogs_assert(subscription);
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OGS_SETUP_SBI_CLIENT(subscription, client);
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subscription->nf_type = nf_type;
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if (nf_instance_id)
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subscription->nf_instance_id = ogs_strdup(nf_instance_id);
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request = ogs_nnrf_nfm_build_status_subscribe(subscription);
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ogs_assert(request);
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2020-07-09 05:38:09 +00:00
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ogs_sbi_client_send_request(client, client->cb, request, subscription);
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2020-06-17 05:22:28 +00:00
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ogs_sbi_request_free(request);
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2020-06-04 18:12:05 +00:00
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}
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void ogs_nnrf_nfm_send_nf_status_unsubscribe(
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ogs_sbi_subscription_t *subscription)
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{
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ogs_sbi_request_t *request = NULL;
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ogs_sbi_client_t *client = NULL;
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ogs_assert(subscription);
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client = subscription->client;
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ogs_assert(client);
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request = ogs_nnrf_nfm_build_status_unsubscribe(subscription);
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ogs_assert(request);
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2020-07-09 05:38:09 +00:00
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ogs_sbi_client_send_request(client, client->cb, request, subscription);
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2020-06-17 05:22:28 +00:00
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ogs_sbi_request_free(request);
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2020-06-04 18:12:05 +00:00
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}
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void ogs_nnrf_disc_send_nf_discover(ogs_sbi_nf_instance_t *nf_instance,
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2020-06-17 05:22:28 +00:00
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OpenAPI_nf_type_e target_nf_type, void *data)
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2020-06-04 18:12:05 +00:00
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{
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ogs_sbi_client_t *client = NULL;
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ogs_sbi_request_t *request = NULL;
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ogs_assert(nf_instance);
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2020-06-17 05:22:28 +00:00
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ogs_assert(nf_instance->nf_type);
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2020-06-04 18:12:05 +00:00
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client = nf_instance->client;
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ogs_assert(client);
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2020-06-17 05:22:28 +00:00
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request = ogs_nnrf_disc_build_discover(
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target_nf_type, nf_instance->nf_type);
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2020-06-04 18:12:05 +00:00
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ogs_assert(request);
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2020-07-09 05:38:09 +00:00
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ogs_sbi_client_send_request(client, client->cb, request, data);
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2020-06-17 05:22:28 +00:00
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ogs_sbi_request_free(request);
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2020-06-04 18:12:05 +00:00
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}
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