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/*
* Copyright (C) 2019-2024 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 "sbi-path.h"
#include "nnrf-handler.h"
#include "npcf-handler.h"
#include "nudr-handler.h"
void pcf_am_state_initial(ogs_fsm_t *s, pcf_event_t *e)
{
ogs_assert(s);
OGS_FSM_TRAN(s, &pcf_am_state_operational);
}
void pcf_am_state_final(ogs_fsm_t *s, pcf_event_t *e)
{
}
void pcf_am_state_operational(ogs_fsm_t *s, pcf_event_t *e)
{
bool handled;
pcf_ue_t *pcf_ue = NULL;
ogs_sbi_stream_t *stream = NULL;
ogs_pool_id_t stream_id;
ogs_sbi_message_t *message = NULL;
ogs_assert(s);
ogs_assert(e);
pcf_sm_debug(e);
pcf_ue = pcf_ue_find_by_id(e->pcf_ue_id);
ogs_assert(pcf_ue);
switch (e->h.id) {
case OGS_FSM_ENTRY_SIG:
break;
case OGS_FSM_EXIT_SIG:
break;
case OGS_EVENT_SBI_SERVER:
message = e->h.sbi.message;
ogs_assert(message);
stream_id = OGS_POINTER_TO_UINT(e->h.sbi.data);
ogs_assert(stream_id >= OGS_MIN_POOL_ID &&
stream_id <= OGS_MAX_POOL_ID);
stream = ogs_sbi_stream_find_by_id(stream_id);
if (!stream) {
ogs_error("STREAM has already been removed [%d]", stream_id);
break;
}
SWITCH(message->h.method)
CASE(OGS_SBI_HTTP_METHOD_POST)
handled = pcf_npcf_am_policy_control_handle_create(
pcf_ue, stream, message);
if (!handled) {
ogs_error("[%s] Cannot handle SBI message", pcf_ue->supi);
OGS_FSM_TRAN(s, pcf_am_state_exception);
}
break;
CASE(OGS_SBI_HTTP_METHOD_DELETE)
ogs_assert(true == ogs_sbi_send_http_status_no_content(stream));
OGS_FSM_TRAN(s, pcf_am_state_deleted);
break;
DEFAULT
ogs_error("[%s] Invalid HTTP method [%s]",
pcf_ue->supi, message->h.method);
ogs_assert(true ==
ogs_sbi_server_send_error(stream,
OGS_SBI_HTTP_STATUS_METHOD_NOT_ALLOWED, message,
"Invalid HTTP method", message->h.method, NULL));
END
break;
case OGS_EVENT_SBI_CLIENT:
message = e->h.sbi.message;
ogs_assert(message);
stream_id = OGS_POINTER_TO_UINT(e->h.sbi.data);
ogs_assert(stream_id >= OGS_MIN_POOL_ID &&
stream_id <= OGS_MAX_POOL_ID);
stream = ogs_sbi_stream_find_by_id(stream_id);
if (!stream) {
ogs_error("STREAM has already been removed [%d]", stream_id);
break;
}
SWITCH(message->h.service.name)
CASE(OGS_SBI_SERVICE_NAME_NUDR_DR)
SWITCH(message->h.resource.component[0])
CASE(OGS_SBI_RESOURCE_NAME_POLICY_DATA)
SWITCH(message->h.resource.component[1])
CASE(OGS_SBI_RESOURCE_NAME_UES)
if (message->res_status != OGS_SBI_HTTP_STATUS_OK &&
message->res_status != OGS_SBI_HTTP_STATUS_NO_CONTENT) {
if (message->res_status ==
OGS_SBI_HTTP_STATUS_NOT_FOUND) {
ogs_warn("[%s] Cannot find SUPI [%d]",
pcf_ue->supi, message->res_status);
} else {
ogs_error("[%s] HTTP response error [%d]",
pcf_ue->supi, message->res_status);
}
ogs_assert(true ==
ogs_sbi_server_send_error(
stream, message->res_status,
NULL, "HTTP response error", pcf_ue->supi,
NULL));
break;
}
pcf_nudr_dr_handle_query_am_data(pcf_ue, stream, message);
break;
DEFAULT
ogs_error("[%s] Invalid resource name [%s]",
pcf_ue->supi, message->h.resource.component[1]);
ogs_assert_if_reached();
END
break;
DEFAULT
ogs_error("[%s] Invalid resource name [%s]",
pcf_ue->supi, message->h.resource.component[0]);
ogs_assert_if_reached();
END
break;
DEFAULT
ogs_error("[%s] Invalid API name [%s]",
pcf_ue->supi, message->h.service.name);
ogs_assert(true ==
ogs_sbi_server_send_error(stream,
OGS_SBI_HTTP_STATUS_BAD_REQUEST, message,
"Invalid API name", message->h.resource.component[0],
NULL));
END
break;
default:
ogs_error("[%s] Unknown event %s", pcf_ue->supi, pcf_event_get_name(e));
break;
}
}
void pcf_am_state_deleted(ogs_fsm_t *s, pcf_event_t *e)
{
pcf_ue_t *pcf_ue = NULL;
ogs_assert(s);
ogs_assert(e);
pcf_sm_debug(e);
pcf_ue = pcf_ue_find_by_id(e->pcf_ue_id);
ogs_assert(pcf_ue);
switch (e->h.id) {
case OGS_FSM_ENTRY_SIG:
break;
case OGS_FSM_EXIT_SIG:
break;
default:
ogs_error("[%s] Unknown event %s", pcf_ue->supi, pcf_event_get_name(e));
break;
}
}
void pcf_am_state_exception(ogs_fsm_t *s, pcf_event_t *e)
{
pcf_ue_t *pcf_ue = NULL;
ogs_assert(s);
ogs_assert(e);
pcf_sm_debug(e);
pcf_ue = pcf_ue_find_by_id(e->pcf_ue_id);
ogs_assert(pcf_ue);
switch (e->h.id) {
case OGS_FSM_ENTRY_SIG:
break;
case OGS_FSM_EXIT_SIG:
break;
default:
ogs_error("[%s] Unknown event %s", pcf_ue->supi, pcf_event_get_name(e));
break;
}
}
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