2020-04-26 19:36:05 +00:00
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/*
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* Copyright (C) 2019 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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#ifndef SMF_S5C_HANDLER_H
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#define SMF_S5C_HANDLER_H
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#include "context.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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void smf_s5c_handle_echo_request(
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2022-04-12 22:07:39 +00:00
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ogs_gtp_xact_t *xact, ogs_gtp2_echo_request_t *req);
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2020-04-26 19:36:05 +00:00
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void smf_s5c_handle_echo_response(
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2022-04-12 22:07:39 +00:00
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ogs_gtp_xact_t *xact, ogs_gtp2_echo_response_t *req);
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2020-04-26 19:36:05 +00:00
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2022-04-14 01:30:58 +00:00
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uint8_t smf_s5c_handle_create_session_request(
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2020-04-26 19:36:05 +00:00
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smf_sess_t *sess, ogs_gtp_xact_t *xact,
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2022-04-12 22:07:39 +00:00
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ogs_gtp2_create_session_request_t *req);
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2022-04-20 12:42:18 +00:00
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uint8_t smf_s5c_handle_delete_session_request(
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2020-04-26 19:36:05 +00:00
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smf_sess_t *sess, ogs_gtp_xact_t *xact,
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2022-04-12 22:07:39 +00:00
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ogs_gtp2_delete_session_request_t *req);
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2021-06-21 13:36:38 +00:00
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void smf_s5c_handle_modify_bearer_request(
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smf_sess_t *sess, ogs_gtp_xact_t *xact,
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[GTP] Incorrect destination TEID=0 (#3043)
If eg. PCRF or AAA diameter link is not yet ready (eg. PCRF crashed),
and a client sends a CreateSessionRequest announcing its ow F-TEID,
then open5gs-smfd answers with Create Session Response Cause=
"Remote peer not responding", but it is not setting the received F-TEID
in the header of the response, instead it sends with TEI=0.
As a result, the peer cannot match the CreateSessionResponse,
and needs to rely on its own timeout timer to figure out
that specific request failed.
To address this issue, I modified the GTP Response message to check
the Sender F-TEID and send it accordingly, setting the destination TEID
to the value of the Sender F-TEID.
I've made this modification only for SMF, but MME and SGW-C have not done so;
if you need to, you can work from the examples in SMF.
Similarly, the same situation can happen with PFCP. If anyone needs to do this
in the future, I think you can work on it this way.
2024-04-06 07:34:03 +00:00
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ogs_pkbuf_t *gtpbuf, ogs_gtp2_modify_bearer_request_t *req,
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ogs_gtp2_sender_f_teid_t *sender_f_teid);
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2020-04-26 19:36:05 +00:00
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void smf_s5c_handle_create_bearer_response(
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smf_sess_t *sess, ogs_gtp_xact_t *xact,
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2022-06-29 12:15:51 +00:00
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ogs_gtp2_create_bearer_response_t *rsp);
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2020-04-26 19:36:05 +00:00
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void smf_s5c_handle_update_bearer_response(
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smf_sess_t *sess, ogs_gtp_xact_t *xact,
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2022-06-29 12:15:51 +00:00
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ogs_gtp2_update_bearer_response_t *rsp);
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2022-04-20 12:42:18 +00:00
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bool smf_s5c_handle_delete_bearer_response(
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2020-04-26 19:36:05 +00:00
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smf_sess_t *sess, ogs_gtp_xact_t *xact,
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2022-06-29 12:15:51 +00:00
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ogs_gtp2_delete_bearer_response_t *rsp);
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2020-04-26 19:36:05 +00:00
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void smf_s5c_handle_bearer_resource_command(
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smf_sess_t *sess, ogs_gtp_xact_t *xact,
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[GTP] Incorrect destination TEID=0 (#3043)
If eg. PCRF or AAA diameter link is not yet ready (eg. PCRF crashed),
and a client sends a CreateSessionRequest announcing its ow F-TEID,
then open5gs-smfd answers with Create Session Response Cause=
"Remote peer not responding", but it is not setting the received F-TEID
in the header of the response, instead it sends with TEI=0.
As a result, the peer cannot match the CreateSessionResponse,
and needs to rely on its own timeout timer to figure out
that specific request failed.
To address this issue, I modified the GTP Response message to check
the Sender F-TEID and send it accordingly, setting the destination TEID
to the value of the Sender F-TEID.
I've made this modification only for SMF, but MME and SGW-C have not done so;
if you need to, you can work from the examples in SMF.
Similarly, the same situation can happen with PFCP. If anyone needs to do this
in the future, I think you can work on it this way.
2024-04-06 07:34:03 +00:00
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ogs_gtp2_bearer_resource_command_t *cmd,
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ogs_gtp2_sender_f_teid_t *sender_f_teid);
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2020-04-26 19:36:05 +00:00
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#ifdef __cplusplus
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}
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#endif
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#endif /* SMF_S5C_HANDLER_H */
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