mirror of
https://github.com/nextepc/nextepc-oss.git
synced 2025-11-03 21:33:14 +00:00
133 lines
5.0 KiB
C
133 lines
5.0 KiB
C
/*
|
|
* 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/>.
|
|
*/
|
|
|
|
#if !defined(OGS_GTP_INSIDE) && !defined(OGS_GTP_COMPILATION)
|
|
#error "This header cannot be included directly."
|
|
#endif
|
|
|
|
#ifndef OGS_GTP_XACT_H
|
|
#define OGS_GTP_XACT_H
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/*
|
|
* p225-226 Chapter 7.6 in TS 29.274 V15.9.0
|
|
*
|
|
* A Sequence Number used for a Command message shall have the most significant
|
|
* bit set to 1. A Sequence Number in a message, which was triggered by
|
|
* a Command message, as well as respective Triggered Reply message
|
|
* shall have the same Sequence Number as the Command message
|
|
* (i.e. shall also have the most significant bit set to 1).
|
|
*
|
|
* This setting of the most significant bit of the Sequence Number is done
|
|
* to avoid potential clashes between the Sequence Number selected for
|
|
* a Command message, and the Sequence Number selected by a GTPv2 peer
|
|
* for a Request message, which was not triggered by a Command message.
|
|
*
|
|
* A Sequence Number used for a Request message, which was not triggered
|
|
* by a Command message shall have the most significant bit set to 0.
|
|
*/
|
|
#define OGS_GTP_MIN_XACT_ID 1
|
|
#define OGS_GTP_CMD_XACT_ID 0x800000
|
|
|
|
/**
|
|
* Transaction context
|
|
*/
|
|
typedef struct ogs_gtp_xact_s {
|
|
ogs_lnode_t node; /**< A node of list */
|
|
ogs_index_t index;
|
|
|
|
#define OGS_GTP_LOCAL_ORIGINATOR 0
|
|
#define OGS_GTP_REMOTE_ORIGINATOR 1
|
|
uint8_t org; /**< Transaction' originator.
|
|
local or remote */
|
|
|
|
uint32_t xid; /**< Transaction ID */
|
|
ogs_gtp_node_t *gnode; /**< Relevant GTP node context */
|
|
|
|
void (*cb)(ogs_gtp_xact_t *, void *); /**< Local timer expiration handler */
|
|
void *data; /**< Transaction Data */
|
|
|
|
int step; /**< Current step in the sequence.
|
|
1 : Initial
|
|
2 : Triggered
|
|
3 : Triggered-Reply */
|
|
struct {
|
|
uint8_t type; /**< Message type history */
|
|
ogs_pkbuf_t *pkbuf; /**< Packet history */
|
|
} seq[3]; /**< history for the each step */
|
|
|
|
ogs_timer_t *tm_response; /**< Timer waiting for next message */
|
|
uint8_t response_rcount;
|
|
ogs_timer_t *tm_holding; /**< Timer waiting for holding message */
|
|
uint8_t holding_rcount;
|
|
|
|
void *assoc_xact; /**< Associated GTP transaction */
|
|
void *pfcp_xact; /**< Associated PFCP transaction */
|
|
|
|
#define OGS_GTP_MODIFY_TFT_UPDATE ((uint64_t)1<<0)
|
|
#define OGS_GTP_MODIFY_QOS_UPDATE ((uint64_t)1<<1)
|
|
uint64_t update_flags;
|
|
|
|
#define OGS_GTP_DELETE_SEND_AUTHENTICATION_REQUEST 1
|
|
#define OGS_GTP_DELETE_SEND_DETACH_ACCEPT 2
|
|
#define OGS_GTP_DELETE_SEND_DEACTIVATE_BEARER_CONTEXT_REQUEST 3
|
|
#define OGS_GTP_DELETE_SEND_UE_CONTEXT_RELEASE_COMMAND 4
|
|
#define OGS_GTP_DELETE_HANDLE_PDN_CONNECTIVITY_REQUEST 5
|
|
int delete_action;
|
|
|
|
#define OGS_GTP_RELEASE_SEND_UE_CONTEXT_RELEASE_COMMAND 1
|
|
#define OGS_GTP_RELEASE_S1_CONTEXT_REMOVE 2
|
|
int release_action;
|
|
} ogs_gtp_xact_t;
|
|
|
|
int ogs_gtp_xact_init(void);
|
|
void ogs_gtp_xact_final(void);
|
|
|
|
ogs_gtp_xact_t *ogs_gtp_xact_local_create(ogs_gtp_node_t *gnode,
|
|
ogs_gtp_header_t *hdesc, ogs_pkbuf_t *pkbuf,
|
|
void (*cb)(ogs_gtp_xact_t *xact, void *data), void *data);
|
|
ogs_gtp_xact_t *ogs_gtp_xact_remote_create(
|
|
ogs_gtp_node_t *gnode, uint32_t sqn);
|
|
ogs_gtp_xact_t *ogs_gtp_xact_cycle(ogs_gtp_xact_t *xact);
|
|
void ogs_gtp_xact_delete_all(ogs_gtp_node_t *gnode);
|
|
|
|
int ogs_gtp_xact_update_tx(ogs_gtp_xact_t *xact,
|
|
ogs_gtp_header_t *hdesc, ogs_pkbuf_t *pkbuf);
|
|
int ogs_gtp_xact_update_rx(ogs_gtp_xact_t *xact, uint8_t type);
|
|
|
|
int ogs_gtp_xact_commit(ogs_gtp_xact_t *xact);
|
|
|
|
int ogs_gtp_xact_receive(ogs_gtp_node_t *gnode,
|
|
ogs_gtp_header_t *h, ogs_gtp_xact_t **xact);
|
|
|
|
ogs_gtp_xact_t *ogs_gtp_xact_find(ogs_index_t index);
|
|
ogs_gtp_xact_t *ogs_gtp_xact_find_by_xid(
|
|
ogs_gtp_node_t *gnode, uint8_t type, uint32_t xid);
|
|
void ogs_gtp_xact_associate(ogs_gtp_xact_t *xact1, ogs_gtp_xact_t *xact2);
|
|
void ogs_gtp_xact_deassociate(ogs_gtp_xact_t *xact1, ogs_gtp_xact_t *xact2);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* OGS_GTP_XACT_H */
|