File size: 5,035 Bytes
258fb37 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 |
/*
* 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 "context.h"
#include "fd-path.h"
#include "gtp-path.h"
#include "pfcp-path.h"
#include "sbi-path.h"
#include "metrics.h"
static ogs_thread_t *thread;
static void smf_main(void *data);
static int initialized = 0;
int smf_initialize(void)
{
int rv;
#define APP_NAME "smf"
rv = ogs_app_parse_local_conf(APP_NAME);
if (rv != OGS_OK) return rv;
smf_metrics_init();
ogs_gtp_context_init(ogs_app()->pool.nf * OGS_MAX_NUM_OF_GTPU_RESOURCE);
ogs_pfcp_context_init();
ogs_sbi_context_init(OpenAPI_nf_type_SMF);
smf_context_init();
rv = ogs_gtp_xact_init();
if (rv != OGS_OK) return rv;
rv = ogs_pfcp_xact_init();
if (rv != OGS_OK) return rv;
rv = ogs_log_config_domain(
ogs_app()->logger.domain, ogs_app()->logger.level);
if (rv != OGS_OK) return rv;
rv = ogs_gtp_context_parse_config(APP_NAME, "upf");
if (rv != OGS_OK) return rv;
rv = ogs_pfcp_context_parse_config(APP_NAME, "upf");
if (rv != OGS_OK) return rv;
rv = ogs_sbi_context_parse_config(APP_NAME, "nrf", "scp");
if (rv != OGS_OK) return rv;
rv = ogs_metrics_context_parse_config(APP_NAME);
if (rv != OGS_OK) return rv;
rv = smf_context_parse_config();
if (rv != OGS_OK) return rv;
rv = ogs_pfcp_ue_pool_generate();
if (rv != OGS_OK) return rv;
ogs_metrics_context_open(ogs_metrics_self());
rv = smf_fd_init();
if (rv != 0) return OGS_ERROR;
rv = smf_gtp_open();
if (rv != 0) return OGS_ERROR;
rv = smf_pfcp_open();
if (rv != 0) return OGS_ERROR;
rv = smf_sbi_open();
if (rv != 0) return OGS_ERROR;
thread = ogs_thread_create(smf_main, NULL);
if (!thread) return OGS_ERROR;
initialized = 1;
return OGS_OK;
}
static ogs_timer_t *t_termination_holding = NULL;
static void event_termination(void)
{
ogs_sbi_nf_instance_t *nf_instance = NULL;
/* Sending NF Instance De-registeration to NRF */
ogs_list_for_each(&ogs_sbi_self()->nf_instance_list, nf_instance)
ogs_sbi_nf_fsm_fini(nf_instance);
/* Starting holding timer */
t_termination_holding = ogs_timer_add(ogs_app()->timer_mgr, NULL, NULL);
ogs_assert(t_termination_holding);
#define TERMINATION_HOLDING_TIME ogs_time_from_msec(300)
ogs_timer_start(t_termination_holding, TERMINATION_HOLDING_TIME);
/* Sending termination event to the queue */
ogs_queue_term(ogs_app()->queue);
ogs_pollset_notify(ogs_app()->pollset);
}
void smf_terminate(void)
{
if (!initialized) return;
/* Daemon terminating */
event_termination();
ogs_thread_destroy(thread);
ogs_timer_delete(t_termination_holding);
smf_gtp_close();
smf_pfcp_close();
smf_sbi_close();
ogs_metrics_context_close(ogs_metrics_self());
smf_fd_final();
smf_context_final();
ogs_pfcp_context_final();
ogs_sbi_context_final();
ogs_gtp_context_final();
ogs_pfcp_xact_final();
ogs_gtp_xact_final();
smf_metrics_final();
}
static void smf_main(void *data)
{
ogs_fsm_t smf_sm;
int rv;
ogs_fsm_init(&smf_sm, smf_state_initial, smf_state_final, 0);
for ( ;; ) {
ogs_pollset_poll(ogs_app()->pollset,
ogs_timer_mgr_next(ogs_app()->timer_mgr));
/*
* After ogs_pollset_poll(), ogs_timer_mgr_expire() must be called.
*
* The reason is why ogs_timer_mgr_next() can get the corrent value
* when ogs_timer_stop() is called internally in ogs_timer_mgr_expire().
*
* You should not use event-queue before ogs_timer_mgr_expire().
* In this case, ogs_timer_mgr_expire() does not work
* because 'if rv == OGS_DONE' statement is exiting and
* not calling ogs_timer_mgr_expire().
*/
ogs_timer_mgr_expire(ogs_app()->timer_mgr);
for ( ;; ) {
smf_event_t *e = NULL;
rv = ogs_queue_trypop(ogs_app()->queue, (void**)&e);
ogs_assert(rv != OGS_ERROR);
if (rv == OGS_DONE)
goto done;
if (rv == OGS_RETRY)
break;
ogs_assert(e);
ogs_fsm_dispatch(&smf_sm, e);
ogs_event_free(e);
}
}
done:
ogs_fsm_fini(&smf_sm, 0);
}
|