forked from acouzens/open5gs
382 lines
11 KiB
C
382 lines
11 KiB
C
/*
|
|
* Copyright (C) 2019,2020 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 "sbi-path.h"
|
|
#include "nnrf-handler.h"
|
|
|
|
void udm_nf_fsm_init(ogs_sbi_nf_instance_t *nf_instance)
|
|
{
|
|
udm_event_t e;
|
|
|
|
ogs_assert(nf_instance);
|
|
|
|
memset(&e, 0, sizeof(e));
|
|
e.sbi.data = nf_instance;
|
|
|
|
ogs_fsm_create(&nf_instance->sm,
|
|
udm_nf_state_initial, udm_nf_state_final);
|
|
ogs_fsm_init(&nf_instance->sm, &e);
|
|
}
|
|
|
|
void udm_nf_fsm_fini(ogs_sbi_nf_instance_t *nf_instance)
|
|
{
|
|
udm_event_t e;
|
|
|
|
ogs_assert(nf_instance);
|
|
|
|
memset(&e, 0, sizeof(e));
|
|
e.sbi.data = nf_instance;
|
|
|
|
ogs_fsm_fini(&nf_instance->sm, &e);
|
|
ogs_fsm_delete(&nf_instance->sm);
|
|
}
|
|
|
|
void udm_nf_state_initial(ogs_fsm_t *s, udm_event_t *e)
|
|
{
|
|
ogs_sbi_nf_instance_t *nf_instance = NULL;
|
|
|
|
ogs_assert(s);
|
|
ogs_assert(e);
|
|
|
|
udm_sm_debug(e);
|
|
|
|
nf_instance = e->sbi.data;
|
|
ogs_assert(nf_instance);
|
|
ogs_assert(nf_instance->id);
|
|
|
|
ogs_assert(nf_instance->t_registration_interval);
|
|
nf_instance->t_registration_interval->cb =
|
|
udm_timer_nf_instance_registration_interval;
|
|
ogs_assert(nf_instance->t_heartbeat_interval);
|
|
nf_instance->t_heartbeat_interval->cb =
|
|
udm_timer_nf_instance_heartbeat_interval;
|
|
ogs_assert(nf_instance->t_heartbeat);
|
|
nf_instance->t_heartbeat->cb = udm_timer_nf_instance_heartbeat;
|
|
ogs_assert(nf_instance->t_validity);
|
|
nf_instance->t_validity->cb = udm_timer_nf_instance_validity;
|
|
|
|
if (NF_INSTANCE_IS_SELF(nf_instance->id)) {
|
|
OGS_FSM_TRAN(s, &udm_nf_state_will_register);
|
|
} else {
|
|
OGS_FSM_TRAN(s, &udm_nf_state_registered);
|
|
}
|
|
}
|
|
|
|
void udm_nf_state_final(ogs_fsm_t *s, udm_event_t *e)
|
|
{
|
|
ogs_assert(s);
|
|
ogs_assert(e);
|
|
|
|
udm_sm_debug(e);
|
|
}
|
|
|
|
void udm_nf_state_will_register(ogs_fsm_t *s, udm_event_t *e)
|
|
{
|
|
ogs_sbi_nf_instance_t *nf_instance = NULL;
|
|
ogs_sbi_client_t *client = NULL;
|
|
ogs_sbi_message_t *message = NULL;
|
|
ogs_sockaddr_t *addr = NULL;
|
|
|
|
ogs_assert(s);
|
|
ogs_assert(e);
|
|
|
|
udm_sm_debug(e);
|
|
|
|
nf_instance = e->sbi.data;
|
|
ogs_assert(nf_instance);
|
|
|
|
switch (e->id) {
|
|
case OGS_FSM_ENTRY_SIG:
|
|
if (NF_INSTANCE_IS_SELF(nf_instance->id))
|
|
ogs_timer_start(nf_instance->t_registration_interval,
|
|
udm_timer_cfg(UDM_TIMER_NF_INSTANCE_REGISTRATION_INTERVAL)->
|
|
duration);
|
|
|
|
ogs_nnrf_nfm_send_nf_register(nf_instance);
|
|
break;
|
|
|
|
case OGS_FSM_EXIT_SIG:
|
|
if (NF_INSTANCE_IS_SELF(nf_instance->id))
|
|
ogs_timer_stop(nf_instance->t_registration_interval);
|
|
break;
|
|
|
|
case UDM_EVT_SBI_CLIENT:
|
|
message = e->sbi.message;
|
|
ogs_assert(message);
|
|
|
|
SWITCH(message->h.service.name)
|
|
CASE(OGS_SBI_SERVICE_NAME_NNRF_NFM)
|
|
|
|
SWITCH(message->h.resource.component[0])
|
|
CASE(OGS_SBI_RESOURCE_NAME_NF_INSTANCES)
|
|
|
|
if (message->res_status == OGS_SBI_HTTP_STATUS_OK ||
|
|
message->res_status == OGS_SBI_HTTP_STATUS_CREATED) {
|
|
udm_nnrf_handle_nf_register(nf_instance, message);
|
|
OGS_FSM_TRAN(s, &udm_nf_state_registered);
|
|
} else {
|
|
ogs_error("[%s] HTTP response error [%d]",
|
|
nf_instance->id, message->res_status);
|
|
OGS_FSM_TRAN(s, &udm_nf_state_exception);
|
|
}
|
|
break;
|
|
|
|
DEFAULT
|
|
ogs_error("[%s] Invalid resource name [%s]",
|
|
nf_instance->id, message->h.resource.component[0]);
|
|
END
|
|
break;
|
|
|
|
DEFAULT
|
|
ogs_error("[%s] Invalid API name [%s]",
|
|
nf_instance->id, message->h.service.name);
|
|
END
|
|
break;
|
|
|
|
case UDM_EVT_SBI_TIMER:
|
|
switch(e->timer_id) {
|
|
case UDM_TIMER_NF_INSTANCE_REGISTRATION_INTERVAL:
|
|
client = nf_instance->client;
|
|
ogs_assert(client);
|
|
addr = client->addr;
|
|
ogs_assert(addr);
|
|
|
|
ogs_warn("[%s] Retry to registration with NRF", nf_instance->id);
|
|
|
|
if (NF_INSTANCE_IS_SELF(nf_instance->id))
|
|
ogs_timer_start(nf_instance->t_registration_interval,
|
|
udm_timer_cfg(UDM_TIMER_NF_INSTANCE_REGISTRATION_INTERVAL)->
|
|
duration);
|
|
|
|
ogs_nnrf_nfm_send_nf_register(nf_instance);
|
|
break;
|
|
|
|
default:
|
|
ogs_error("[%s] Unknown timer[%s:%d]", nf_instance->id,
|
|
udm_timer_get_name(e->timer_id), e->timer_id);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
ogs_error("Unknown event %s", udm_event_get_name(e));
|
|
break;
|
|
}
|
|
}
|
|
|
|
void udm_nf_state_registered(ogs_fsm_t *s, udm_event_t *e)
|
|
{
|
|
ogs_sbi_nf_instance_t *nf_instance = NULL;
|
|
ogs_sbi_client_t *client = NULL;
|
|
ogs_sbi_message_t *message = NULL;
|
|
ogs_assert(s);
|
|
ogs_assert(e);
|
|
|
|
udm_sm_debug(e);
|
|
|
|
nf_instance = e->sbi.data;
|
|
ogs_assert(nf_instance);
|
|
|
|
switch (e->id) {
|
|
case OGS_FSM_ENTRY_SIG:
|
|
if (NF_INSTANCE_IS_SELF(nf_instance->id)) {
|
|
ogs_info("[%s] NF registered", nf_instance->id);
|
|
|
|
client = nf_instance->client;
|
|
ogs_assert(client);
|
|
|
|
if (nf_instance->time.heartbeat) {
|
|
ogs_timer_start(nf_instance->t_heartbeat_interval,
|
|
ogs_time_from_sec(nf_instance->time.heartbeat));
|
|
ogs_timer_start(nf_instance->t_heartbeat,
|
|
ogs_time_from_sec(nf_instance->time.heartbeat *
|
|
OGS_SBI_HEARTBEAT_RETRYCOUNT));
|
|
}
|
|
|
|
ogs_nnrf_nfm_send_nf_status_subscribe(client,
|
|
udm_self()->nf_type, nf_instance->id);
|
|
}
|
|
|
|
break;
|
|
|
|
case OGS_FSM_EXIT_SIG:
|
|
if (NF_INSTANCE_IS_SELF(nf_instance->id)) {
|
|
ogs_info("[%s] NF de-registered", nf_instance->id);
|
|
|
|
if (nf_instance->time.heartbeat) {
|
|
ogs_timer_stop(nf_instance->t_heartbeat_interval);
|
|
ogs_timer_stop(nf_instance->t_heartbeat);
|
|
}
|
|
|
|
ogs_nnrf_nfm_send_nf_de_register(nf_instance);
|
|
}
|
|
break;
|
|
|
|
case UDM_EVT_SBI_CLIENT:
|
|
message = e->sbi.message;
|
|
ogs_assert(message);
|
|
|
|
SWITCH(message->h.service.name)
|
|
CASE(OGS_SBI_SERVICE_NAME_NNRF_NFM)
|
|
|
|
SWITCH(message->h.resource.component[0])
|
|
CASE(OGS_SBI_RESOURCE_NAME_NF_INSTANCES)
|
|
|
|
if (message->res_status == OGS_SBI_HTTP_STATUS_NO_CONTENT ||
|
|
message->res_status == OGS_SBI_HTTP_STATUS_OK) {
|
|
if (nf_instance->time.heartbeat)
|
|
ogs_timer_start(nf_instance->t_heartbeat,
|
|
ogs_time_from_sec(nf_instance->time.heartbeat *
|
|
OGS_SBI_HEARTBEAT_RETRYCOUNT));
|
|
} else {
|
|
ogs_error("[%s] HTTP response error [%d]",
|
|
nf_instance->id, message->res_status);
|
|
}
|
|
|
|
break;
|
|
|
|
DEFAULT
|
|
ogs_error("[%s] Invalid resource name [%s]",
|
|
nf_instance->id, message->h.resource.component[0]);
|
|
END
|
|
break;
|
|
|
|
DEFAULT
|
|
ogs_error("[%s] Invalid API name [%s]",
|
|
nf_instance->id, message->h.service.name);
|
|
END
|
|
break;
|
|
|
|
case UDM_EVT_SBI_TIMER:
|
|
switch(e->timer_id) {
|
|
case UDM_TIMER_NF_INSTANCE_HEARTBEAT_INTERVAL:
|
|
if (nf_instance->time.heartbeat)
|
|
ogs_timer_start(nf_instance->t_heartbeat_interval,
|
|
ogs_time_from_sec(nf_instance->time.heartbeat));
|
|
|
|
ogs_nnrf_nfm_send_nf_update(nf_instance);
|
|
break;
|
|
|
|
case UDM_TIMER_NF_INSTANCE_HEARTBEAT:
|
|
OGS_FSM_TRAN(s, &udm_nf_state_will_register);
|
|
break;
|
|
|
|
case UDM_TIMER_NF_INSTANCE_VALIDITY:
|
|
if (NF_INSTANCE_IS_OTHERS(nf_instance->id)) {
|
|
ogs_info("[%s] NF expired", nf_instance->id);
|
|
OGS_FSM_TRAN(s, &udm_nf_state_de_registered);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
ogs_error("[%s] Unknown timer[%s:%d]", nf_instance->id,
|
|
udm_timer_get_name(e->timer_id), e->timer_id);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
ogs_error("[%s] Unknown event %s",
|
|
nf_instance->id, udm_event_get_name(e));
|
|
break;
|
|
}
|
|
}
|
|
|
|
void udm_nf_state_de_registered(ogs_fsm_t *s, udm_event_t *e)
|
|
{
|
|
ogs_sbi_nf_instance_t *nf_instance = NULL;
|
|
ogs_assert(s);
|
|
ogs_assert(e);
|
|
|
|
udm_sm_debug(e);
|
|
|
|
nf_instance = e->sbi.data;
|
|
ogs_assert(nf_instance);
|
|
|
|
switch (e->id) {
|
|
case OGS_FSM_ENTRY_SIG:
|
|
if (NF_INSTANCE_IS_SELF(nf_instance->id)) {
|
|
ogs_info("[%s] NF de-registered", nf_instance->id);
|
|
}
|
|
break;
|
|
|
|
case OGS_FSM_EXIT_SIG:
|
|
break;
|
|
|
|
default:
|
|
ogs_error("[%s] Unknown event %s",
|
|
nf_instance->id, udm_event_get_name(e));
|
|
break;
|
|
}
|
|
}
|
|
|
|
void udm_nf_state_exception(ogs_fsm_t *s, udm_event_t *e)
|
|
{
|
|
ogs_sbi_nf_instance_t *nf_instance = NULL;
|
|
ogs_sbi_client_t *client = NULL;
|
|
ogs_sockaddr_t *addr = NULL;
|
|
ogs_assert(s);
|
|
ogs_assert(e);
|
|
|
|
udm_sm_debug(e);
|
|
|
|
nf_instance = e->sbi.data;
|
|
ogs_assert(nf_instance);
|
|
|
|
switch (e->id) {
|
|
case OGS_FSM_ENTRY_SIG:
|
|
if (NF_INSTANCE_IS_SELF(nf_instance->id))
|
|
ogs_timer_start(nf_instance->t_registration_interval,
|
|
udm_timer_cfg(UDM_TIMER_NF_INSTANCE_REGISTRATION_INTERVAL)->
|
|
duration);
|
|
break;
|
|
|
|
case OGS_FSM_EXIT_SIG:
|
|
if (NF_INSTANCE_IS_SELF(nf_instance->id))
|
|
ogs_timer_stop(nf_instance->t_registration_interval);
|
|
break;
|
|
|
|
case UDM_EVT_SBI_TIMER:
|
|
switch(e->timer_id) {
|
|
case UDM_TIMER_NF_INSTANCE_REGISTRATION_INTERVAL:
|
|
client = nf_instance->client;
|
|
ogs_assert(client);
|
|
addr = client->addr;
|
|
ogs_assert(addr);
|
|
|
|
ogs_warn("[%s] Retry to registration with NRF", nf_instance->id);
|
|
|
|
OGS_FSM_TRAN(s, &udm_nf_state_will_register);
|
|
break;
|
|
|
|
default:
|
|
ogs_error("[%s] Unknown timer[%s:%d]", nf_instance->id,
|
|
udm_timer_get_name(e->timer_id), e->timer_id);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
ogs_error("[%s] Unknown event %s",
|
|
nf_instance->id, udm_event_get_name(e));
|
|
break;
|
|
}
|
|
}
|