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* Copyright (C) 2019 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 "mme-timer.h"
#include "mme-event.h"
#include "mme-context.h"
static mme_timer_cfg_t g_mme_timer_cfg[MAX_NUM_OF_MME_TIMER] = {
/* Paging procedure for EPS services initiated */
[MME_TIMER_T3413] =
{ .have = true, .max_count = 2, .duration = ogs_time_from_sec(2) },
/* DETACH REQUEST sent */
[MME_TIMER_T3422] =
{ .have = true, .max_count = 4, .duration = ogs_time_from_sec(3) },
/* ATTACH ACCEPT sent
* TRACKING AREA UPDATE ACCEPT sent with GUTI
* TRACKING AREA UPDATE ACCEPT sent with TMSI
* GUTI REALLOCATION COMMAND sent */
[MME_TIMER_T3450] =
{ .have = true, .max_count = 4, .duration = ogs_time_from_sec(6) },
/* AUTHENTICATION REQUEST sent
* SECURITY MODE COMMAND sent */
[MME_TIMER_T3460] =
{ .have = true, .max_count = 4, .duration = ogs_time_from_sec(3) },
/* IDENTITY REQUEST sent */
[MME_TIMER_T3470] =
{ .have = true, .max_count = 4, .duration = ogs_time_from_sec(3) },
/* ESM INFORMATION REQUEST sent */
[MME_TIMER_T3489] =
{ .have = true, .max_count = 2, .duration = ogs_time_from_sec(4) },
[MME_TIMER_SGS_CLI_CONN_TO_SRV] =
{ .have = true, .duration = ogs_time_from_sec(3) },
[MME_TIMER_S1_HOLDING] =
{ .have = true, .duration = ogs_time_from_sec(30) },
[MME_TIMER_S11_HOLDING] =
{ .have = true, .duration = ogs_time_from_msec(300) },
[MME_TIMER_GN_HOLDING] =
{ .have = true, .duration = ogs_time_from_sec(20) },
};
mme_timer_cfg_t *mme_timer_cfg(mme_timer_e id)
{
ogs_assert(id < MAX_NUM_OF_MME_TIMER);
if (g_mme_timer_cfg[id].have != true) {
ogs_fatal("No timer[%d] configuration", id);
ogs_assert_if_reached();
}
return &g_mme_timer_cfg[id];
}
const char *mme_timer_get_name(mme_timer_e id)
{
switch (id) {
case MME_TIMER_S1_DELAYED_SEND:
return "MME_TIMER_S1_DELAYED_SEND";
case MME_TIMER_T3413:
return "MME_TIMER_T3413";
case MME_TIMER_T3422:
return "MME_TIMER_T3422";
case MME_TIMER_T3450:
return "MME_TIMER_T3450";
case MME_TIMER_T3460:
return "MME_TIMER_T3460";
case MME_TIMER_T3470:
return "MME_TIMER_T3470";
case MME_TIMER_T3489:
return "MME_TIMER_T3489";
case MME_TIMER_MOBILE_REACHABLE:
return "MME_TIMER_MOBILE_REACHABLE";
case MME_TIMER_IMPLICIT_DETACH:
return "MME_TIMER_IMPLICIT_DETACH";
case MME_TIMER_SGS_CLI_CONN_TO_SRV:
return "MME_TIMER_SGS_CLI_CONN_TO_SRV";
case MME_TIMER_S1_HOLDING:
return "MME_TIMER_S1_HOLDING";
case MME_TIMER_S11_HOLDING:
return "MME_TIMER_S11_HOLDING";
default:
break;
}
return "UNKNOWN_TIMER";
}
void mme_timer_s1_delayed_send(void *data)
{
int rv;
mme_event_t *e = data;
ogs_assert(e);
e->timer_id = MME_TIMER_S1_DELAYED_SEND;
rv = ogs_queue_push(ogs_app()->queue, e);
if (rv != OGS_OK) {
ogs_error("ogs_queue_push() failed:%d", (int)rv);
ogs_timer_delete(e->timer);
mme_event_free(e);
}
}
static void emm_timer_event_send(mme_timer_e timer_id, void *data)
{
int rv;
mme_event_t *e = NULL;
ogs_assert(data);
e = mme_event_new(MME_EVENT_EMM_TIMER);
e->timer_id = timer_id;
e->mme_ue_id = OGS_POINTER_TO_UINT(data);
rv = ogs_queue_push(ogs_app()->queue, e);
if (rv != OGS_OK) {
ogs_error("ogs_queue_push() failed:%d", (int)rv);
mme_event_free(e);
}
}
void mme_timer_t3413_expire(void *data)
{
emm_timer_event_send(MME_TIMER_T3413, data);
}
void mme_timer_t3422_expire(void *data)
{
emm_timer_event_send(MME_TIMER_T3422, data);
}
void mme_timer_t3450_expire(void *data)
{
emm_timer_event_send(MME_TIMER_T3450, data);
}
void mme_timer_t3460_expire(void *data)
{
emm_timer_event_send(MME_TIMER_T3460, data);
}
void mme_timer_t3470_expire(void *data)
{
emm_timer_event_send(MME_TIMER_T3470, data);
}
void mme_timer_mobile_reachable_expire(void *data)
{
emm_timer_event_send(MME_TIMER_MOBILE_REACHABLE, data);
}
void mme_timer_implicit_detach_expire(void *data)
{
emm_timer_event_send(MME_TIMER_IMPLICIT_DETACH, data);
}
static void esm_timer_event_send(mme_timer_e timer_id, void *data)
{
int rv;
mme_event_t *e = NULL;
ogs_assert(data);
e = mme_event_new(MME_EVENT_ESM_TIMER);
e->timer_id = timer_id;
e->bearer_id = OGS_POINTER_TO_UINT(data);
rv = ogs_queue_push(ogs_app()->queue, e);
if (rv != OGS_OK) {
ogs_error("ogs_queue_push() failed:%d", (int)rv);
mme_event_free(e);
}
}
void mme_timer_t3489_expire(void *data)
{
esm_timer_event_send(MME_TIMER_T3489, data);
}
void mme_timer_sgs_cli_conn_to_srv(void *data)
{
int rv;
mme_event_t *e = NULL;
ogs_assert(data);
e = mme_event_new(MME_EVENT_SGSAP_TIMER);
e->timer_id = MME_TIMER_SGS_CLI_CONN_TO_SRV;
e->vlr = data;
rv = ogs_queue_push(ogs_app()->queue, e);
if (rv != OGS_OK) {
ogs_error("ogs_queue_push() failed:%d", (int)rv);
mme_event_free(e);
}
}
void mme_timer_s1_holding_timer_expire(void *data)
{
int rv;
mme_event_t *e = NULL;
ogs_assert(data);
e = mme_event_new(MME_EVENT_S1AP_TIMER);
e->timer_id = MME_TIMER_S1_HOLDING;
e->enb_ue_id = OGS_POINTER_TO_UINT(data);
rv = ogs_queue_push(ogs_app()->queue, e);
if (rv != OGS_OK) {
ogs_error("ogs_queue_push() failed:%d", (int)rv);
mme_event_free(e);
}
}
void mme_timer_s11_holding_timer_expire(void *data)
{
int rv;
mme_event_t *e = NULL;
ogs_assert(data);
e = mme_event_new(MME_EVENT_S11_TIMER);
e->timer_id = MME_TIMER_S11_HOLDING;
e->sgw_ue_id = OGS_POINTER_TO_UINT(data);
rv = ogs_queue_push(ogs_app()->queue, e);
if (rv != OGS_OK) {
ogs_error("ogs_queue_push() failed:%d", (int)rv);
mme_event_free(e);
}
}
void mme_timer_gn_holding_timer_expire(void *data)
{
int rv;
mme_event_t *e = NULL;
ogs_assert(data);
e = mme_event_new(MME_EVENT_GN_TIMER);
e->timer_id = MME_TIMER_GN_HOLDING;
e->mme_ue_id = OGS_POINTER_TO_UINT(data);
rv = ogs_queue_push(ogs_app()->queue, e);
if (rv != OGS_OK) {
ogs_error("ogs_queue_push() failed:%d", (int)rv);
mme_event_free(e);
}
}
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