forked from acouzens/open5gs
174 lines
4.6 KiB
C
174 lines
4.6 KiB
C
/*
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* Copyright (C) 2019-2023 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 "context.h"
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static nrf_context_t self;
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int __nrf_log_domain;
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static OGS_POOL(nrf_assoc_pool, nrf_assoc_t);
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static int context_initialized = 0;
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static int max_num_of_nrf_assoc = 0;
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void nrf_context_init(void)
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{
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ogs_assert(context_initialized == 0);
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/* Initialize NRF context */
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memset(&self, 0, sizeof(nrf_context_t));
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ogs_log_install_domain(&__nrf_log_domain, "nrf", ogs_core()->log.level);
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#define MAX_NUM_OF_NRF_ASSOC 8
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max_num_of_nrf_assoc = ogs_global_conf()->max.ue * MAX_NUM_OF_NRF_ASSOC;
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ogs_pool_init(&nrf_assoc_pool, max_num_of_nrf_assoc);
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context_initialized = 1;
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}
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void nrf_context_final(void)
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{
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ogs_sbi_nf_instance_t *nf_instance = NULL, *next_nf_instance = NULL;
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ogs_assert(context_initialized == 1);
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ogs_list_for_each_safe(
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&ogs_sbi_self()->nf_instance_list, next_nf_instance, nf_instance) {
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if (NF_INSTANCE_TYPE_IS_NRF(nf_instance))
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continue;
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if (OGS_FSM_STATE(&nf_instance->sm))
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nrf_nf_fsm_fini(nf_instance);
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}
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nrf_assoc_remove_all();
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ogs_pool_final(&nrf_assoc_pool);
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context_initialized = 0;
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}
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nrf_context_t *nrf_self(void)
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{
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return &self;
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}
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static int nrf_context_prepare(void)
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{
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/* NF Instance Heartbeat
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* Default value is 10 seconds if it is not configured in nrf.yaml */
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if (!ogs_local_conf()->time.nf_instance.heartbeat_interval)
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ogs_local_conf()->time.nf_instance.heartbeat_interval = 10;
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return OGS_OK;
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}
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static int nrf_context_validation(void)
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{
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return OGS_OK;
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}
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int nrf_context_parse_config(void)
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{
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int rv;
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yaml_document_t *document = NULL;
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ogs_yaml_iter_t root_iter;
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document = ogs_app()->document;
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ogs_assert(document);
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rv = nrf_context_prepare();
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if (rv != OGS_OK) return rv;
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ogs_yaml_iter_init(&root_iter, document);
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while (ogs_yaml_iter_next(&root_iter)) {
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const char *root_key = ogs_yaml_iter_key(&root_iter);
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ogs_assert(root_key);
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if (!strcmp(root_key, "time")) {
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ogs_yaml_iter_t time_iter;
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ogs_yaml_iter_recurse(&root_iter, &time_iter);
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while (ogs_yaml_iter_next(&time_iter)) {
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const char *time_key = ogs_yaml_iter_key(&time_iter);
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ogs_assert(time_key);
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if (!strcmp(time_key, "nf_instance")) {
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ogs_yaml_iter_t sbi_iter;
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ogs_yaml_iter_recurse(&time_iter, &sbi_iter);
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while (ogs_yaml_iter_next(&sbi_iter)) {
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const char *sbi_key =
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ogs_yaml_iter_key(&sbi_iter);
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ogs_assert(sbi_key);
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if (!strcmp(sbi_key, "heartbeat")) {
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const char *v = ogs_yaml_iter_value(&sbi_iter);
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if (v) ogs_local_conf()->time.nf_instance.
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heartbeat_interval = atoi(v);
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}
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}
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}
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}
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}
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}
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rv = nrf_context_validation();
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if (rv != OGS_OK) return rv;
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return OGS_OK;
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}
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nrf_assoc_t *nrf_assoc_add(ogs_sbi_stream_t *stream)
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{
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nrf_assoc_t *assoc = NULL;
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ogs_assert(stream);
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ogs_pool_alloc(&nrf_assoc_pool, &assoc);
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if (!assoc) {
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ogs_error("Maximum number of association[%d] reached",
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max_num_of_nrf_assoc);
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return NULL;
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}
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memset(assoc, 0, sizeof *assoc);
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assoc->stream = stream;
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ogs_list_add(&self.assoc_list, assoc);
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return assoc;
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}
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void nrf_assoc_remove(nrf_assoc_t *assoc)
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{
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ogs_assert(assoc);
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ogs_list_remove(&self.assoc_list, assoc);
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ogs_pool_free(&nrf_assoc_pool, assoc);
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}
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void nrf_assoc_remove_all(void)
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{
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nrf_assoc_t *assoc = NULL, *next_assoc = NULL;
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ogs_list_for_each_safe(&self.assoc_list, next_assoc, assoc)
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nrf_assoc_remove(assoc);
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}
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