193 lines
5.9 KiB
C
193 lines
5.9 KiB
C
/*
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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_request_t *request, void *data)
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{
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pcf_event_t *e = NULL;
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int rv;
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ogs_assert(request);
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ogs_assert(data);
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e = pcf_event_new(PCF_EVT_SBI_SERVER);
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ogs_assert(e);
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e->sbi.request = request;
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e->sbi.data = data;
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rv = ogs_queue_push(ogs_app()->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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pcf_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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pcf_event_t *e = NULL;
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int rv;
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ogs_assert(response);
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e = pcf_event_new(PCF_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(ogs_app()->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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pcf_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 pcf_sbi_open(void)
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{
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ogs_sbi_nf_instance_t *nf_instance = NULL;
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if (ogs_sbi_server_start_all(server_cb) != OGS_OK)
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return OGS_ERROR;
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/*
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* The connection between NF and NRF is a little special.
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*
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* NF and NRF share nf_instance. I get the NRF EndPoint(client) information
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* the configuration file via lib/sbi/context.c.
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* And, the NFService information will be transmitted to NRF.
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*
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* ogs_sbi_self()->nf_instance_id means NF's InstanceId.
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*/
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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_client_t *client = NULL;
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/* Build NF instance information. It will be transmitted to NRF. */
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ogs_sbi_nf_instance_build_default(nf_instance, pcf_self()->nf_type);
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/* Build NF service information. It will be transmitted to NRF. */
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service = ogs_sbi_nf_service_build_default(nf_instance,
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(char*)OGS_SBI_SERVICE_NAME_NPCF_AM_POLICY_CONTROL);
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ogs_assert(service);
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ogs_sbi_nf_service_add_version(service, (char*)OGS_SBI_API_V1,
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(char*)OGS_SBI_API_V1_0_0, NULL);
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service = ogs_sbi_nf_service_build_default(nf_instance,
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(char*)OGS_SBI_SERVICE_NAME_NPCF_SMPOLICYCONTROL);
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ogs_assert(service);
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ogs_sbi_nf_service_add_version(service, (char*)OGS_SBI_API_V1,
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(char*)OGS_SBI_API_V1_0_0, NULL);
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/* Client callback is only used when NF sends to NRF */
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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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/* NFRegister is sent and the response is received
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* by the above client callback. */
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pcf_nf_fsm_init(nf_instance);
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}
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return OGS_OK;
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}
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void pcf_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 pcf_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 = pcf_nnrf_nfm_build_register(nf_instance);
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if (!request) {
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ogs_error("ogs_nnrf_nfm_send_nf_register() failed");
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return;
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}
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ogs_sbi_client_send_request(client, client->cb, request, nf_instance);
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}
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void pcf_sbi_send(ogs_sbi_nf_instance_t *nf_instance, ogs_sbi_xact_t *xact)
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{
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ogs_sbi_send(nf_instance, client_cb, xact);
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}
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static bool pcf_sbi_discover_and_send(OpenAPI_nf_type_e target_nf_type,
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ogs_sbi_object_t *sbi_object, ogs_sbi_stream_t *stream,
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ogs_sbi_build_f build, void *context, void *data)
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{
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ogs_sbi_xact_t *xact = NULL;
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ogs_assert(target_nf_type);
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ogs_assert(sbi_object);
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ogs_assert(stream);
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ogs_assert(build);
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xact = ogs_sbi_xact_add(target_nf_type, sbi_object,
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build, context, data,
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pcf_timer_sbi_client_wait_expire);
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if (!xact) return false;
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xact->assoc_stream = stream;
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return ogs_sbi_discover_and_send(xact,
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(ogs_fsm_handler_t)pcf_nf_state_registered, client_cb);
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}
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void pcf_ue_sbi_discover_and_send(OpenAPI_nf_type_e target_nf_type,
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pcf_ue_t *pcf_ue, ogs_sbi_stream_t *stream, void *data,
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ogs_sbi_request_t *(*build)(pcf_ue_t *pcf_ue, void *data))
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{
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if (pcf_sbi_discover_and_send(target_nf_type, &pcf_ue->sbi, stream,
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(ogs_sbi_build_f)build, pcf_ue, data) != true) {
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ogs_error("pcf_ue_sbi_discover_and_send() failed");
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ogs_sbi_server_send_error(stream,
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OGS_SBI_HTTP_STATUS_GATEWAY_TIMEOUT, NULL,
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"Cannot discover", pcf_ue->supi);
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return;
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}
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}
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void pcf_sess_sbi_discover_and_send(OpenAPI_nf_type_e target_nf_type,
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pcf_sess_t *sess, ogs_sbi_stream_t *stream, void *data,
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ogs_sbi_request_t *(*build)(pcf_sess_t *sess, void *data))
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{
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if (pcf_sbi_discover_and_send(target_nf_type, &sess->sbi, stream,
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(ogs_sbi_build_f)build, sess, data) != true) {
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ogs_error("pcf_sess_sbi_discover_and_send() failed");
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ogs_sbi_server_send_error(stream,
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OGS_SBI_HTTP_STATUS_GATEWAY_TIMEOUT, NULL,
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"Cannot discover", NULL);
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return;
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}
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}
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