230 lines
6.1 KiB
C
230 lines
6.1 KiB
C
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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 "sbi-path.h"
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static int server_cb(ogs_sbi_server_t *server,
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ogs_sbi_session_t *session, ogs_sbi_request_t *request)
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{
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udm_event_t *e = NULL;
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int rv;
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ogs_assert(session);
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ogs_assert(request);
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e = udm_event_new(UDM_EVT_SBI_SERVER);
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ogs_assert(e);
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e->sbi.server = server;
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e->sbi.session = session;
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e->sbi.request = request;
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rv = ogs_queue_push(udm_self()->queue, e);
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if (rv != OGS_OK) {
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ogs_warn("ogs_queue_push() failed:%d", (int)rv);
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udm_event_free(e);
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return OGS_ERROR;
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}
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return OGS_OK;
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}
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static int client_cb(ogs_sbi_response_t *response, void *data)
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{
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udm_event_t *e = NULL;
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int rv;
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ogs_assert(response);
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e = udm_event_new(UDM_EVT_SBI_CLIENT);
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ogs_assert(e);
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e->sbi.response = response;
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e->sbi.data = data;
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rv = ogs_queue_push(udm_self()->queue, e);
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if (rv != OGS_OK) {
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ogs_warn("ogs_queue_push() failed:%d", (int)rv);
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udm_event_free(e);
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return OGS_ERROR;
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}
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return OGS_OK;
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}
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int udm_sbi_open(void)
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{
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ogs_sbi_nf_instance_t *nf_instance = NULL;
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ogs_sbi_server_start_all(server_cb);
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ogs_list_for_each(&ogs_sbi_self()->nf_instance_list, nf_instance) {
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ogs_sbi_nf_service_t *service = NULL;
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ogs_sbi_nf_instance_build_default(nf_instance, udm_self()->nf_type);
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service = ogs_sbi_nf_service_build_default(nf_instance,
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(char*)OGS_SBI_SERVICE_NAME_NUDM_UEAU);
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ogs_assert(service);
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ogs_sbi_nf_service_add_version(service, (char*)OGS_SBI_API_VERSION,
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(char*)OGS_SBI_API_FULL_VERSION, NULL);
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udm_nf_fsm_init(nf_instance);
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udm_sbi_setup_client_callback(nf_instance);
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}
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return OGS_OK;
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}
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void udm_sbi_close(void)
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{
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ogs_sbi_server_stop_all();
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}
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void udm_sbi_setup_client_callback(ogs_sbi_nf_instance_t *nf_instance)
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{
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ogs_sbi_client_t *client = NULL;
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ogs_sbi_nf_service_t *nf_service = 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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client->cb = client_cb;
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ogs_list_for_each(&nf_instance->nf_service_list, nf_service) {
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client = nf_service->client;
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if (client)
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client->cb = client_cb;
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}
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}
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static ogs_sbi_nf_instance_t *find_or_discover_nf_instance(
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udm_ue_t *udm_ue, OpenAPI_nf_type_e nf_type)
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{
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ogs_sbi_session_t *session = NULL;
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bool nrf = true;
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bool nf = true;
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ogs_assert(udm_ue);
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session = udm_ue->session;
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ogs_assert(session);
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ogs_assert(nf_type);
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if (!OGS_SBI_NF_INSTANCE_GET(udm_ue->nf_types, OpenAPI_nf_type_NRF))
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nrf = ogs_sbi_nf_types_associate(
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udm_ue->nf_types, OpenAPI_nf_type_NRF, udm_nf_state_registered);
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if (!OGS_SBI_NF_INSTANCE_GET(udm_ue->nf_types, nf_type))
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nf = ogs_sbi_nf_types_associate(
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udm_ue->nf_types, nf_type, udm_nf_state_registered);
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if (nrf == false && nf == false) {
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ogs_error("[%s] Cannot discover UDR", udm_ue->suci);
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ogs_sbi_server_send_error(session,
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OGS_SBI_HTTP_STATUS_SERVICE_UNAVAILABLE, NULL,
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"Cannot discover UDR", udm_ue->suci);
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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 UDR", udm_ue->suci);
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ogs_timer_start(udm_ue->sbi_client_wait.timer,
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udm_timer_cfg(UDM_TIMER_SBI_CLIENT_WAIT)->duration);
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ogs_nnrf_disc_send_nf_discover(
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udm_ue->nf_types[OpenAPI_nf_type_NRF].nf_instance,
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nf_type, OpenAPI_nf_type_UDM, udm_ue);
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return NULL;
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}
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return udm_ue->nf_types[nf_type].nf_instance;
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}
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void udm_nudr_dr_send_query(
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udm_ue_t *udm_ue, 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(udm_ue);
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ogs_assert(nf_instance);
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client = ogs_sbi_client_find_by_service_name(
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nf_instance, (char *)OGS_SBI_SERVICE_NAME_NUDR_DR);
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ogs_assert(client);
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ogs_timer_start(udm_ue->sbi_client_wait.timer,
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udm_timer_cfg(UDM_TIMER_SBI_CLIENT_WAIT)->duration);
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request = udm_nudr_dr_build_query(udm_ue);
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ogs_assert(request);
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ogs_sbi_client_send_request(client, request, udm_ue);
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}
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void udm_nudr_dr_discover_and_send_query(udm_ue_t *udm_ue)
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{
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ogs_sbi_nf_instance_t *nf_instance = NULL;
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ogs_assert(udm_ue);
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if (!nf_instance)
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nf_instance = find_or_discover_nf_instance(udm_ue, OpenAPI_nf_type_UDR);
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if (!nf_instance) return;
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udm_nudr_dr_send_query(udm_ue, nf_instance);
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}
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void udm_nudr_dr_send_update(
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udm_ue_t *udm_ue, 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(udm_ue);
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ogs_assert(nf_instance);
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client = ogs_sbi_client_find_by_service_name(
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nf_instance, (char *)OGS_SBI_SERVICE_NAME_NUDR_DR);
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ogs_assert(client);
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ogs_timer_start(udm_ue->sbi_client_wait.timer,
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udm_timer_cfg(UDM_TIMER_SBI_CLIENT_WAIT)->duration);
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request = udm_nudr_dr_build_update(udm_ue);
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ogs_assert(request);
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ogs_sbi_client_send_request(client, request, udm_ue);
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}
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void udm_nudr_dr_discover_and_send_update(udm_ue_t *udm_ue)
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{
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ogs_sbi_nf_instance_t *nf_instance = NULL;
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ogs_assert(udm_ue);
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if (!nf_instance)
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nf_instance = find_or_discover_nf_instance(udm_ue, OpenAPI_nf_type_UDR);
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if (!nf_instance) return;
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udm_nudr_dr_send_update(udm_ue, nf_instance);
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}
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