mirror of
https://github.com/open5gs/open5gs.git
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101 lines
3.3 KiB
C
101 lines
3.3 KiB
C
/*
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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 GTP_XACT_H
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#define GTP_XACT_H
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#include "gtp-message.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct gtp_node_s gtp_node_t;
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/**
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* Transaction context
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*/
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typedef struct gtp_xact_s {
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ogs_lnode_t node; /**< A node of list */
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ogs_index_t index;
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#define GTP_LOCAL_ORIGINATOR 0
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#define GTP_REMOTE_ORIGINATOR 1
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uint8_t org; /**< Transaction' originator.
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local or remote */
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uint32_t xid; /**< Transaction ID */
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gtp_node_t *gnode; /**< Relevant GTP node context */
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int step; /**< Current step in the sequence.
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1 : Initial
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2 : Triggered
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3 : Triggered-Reply */
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struct {
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uint8_t type; /**< Message type history */
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ogs_pkbuf_t *pkbuf; /**< Packet history */
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} seq[3]; /**< history for the each step */
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ogs_timer_t *tm_response; /**< Timer waiting for next message */
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uint8_t response_rcount;
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ogs_timer_t *tm_holding; /**< Timer waiting for holding message */
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uint8_t holding_rcount;
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struct gtp_xact_s *assoc_xact; /**< Associated transaction */
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#define GTP_XACT_STORE_SESSION(xact, session) \
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do { \
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ogs_assert((xact)); \
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ogs_assert((session)); \
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((xact)->sess) = (session); \
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} while(0)
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#define GTP_XACT_RETRIEVE_SESSION(xact) ((xact) ? ((xact)->sess) : NULL)
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void *sess; /**< Session Store */
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} gtp_xact_t;
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int gtp_xact_init(ogs_timer_mgr_t *timer_mgr);
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int gtp_xact_final(void);
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gtp_xact_t *gtp_xact_local_create(
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gtp_node_t *gnode, gtp_header_t *hdesc, ogs_pkbuf_t *pkbuf);
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gtp_xact_t *gtp_xact_remote_create(
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gtp_node_t *gnode, uint32_t sqn);
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void gtp_xact_delete_all(gtp_node_t *gnode);
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int gtp_xact_update_tx(gtp_xact_t *xact,
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gtp_header_t *hdesc, ogs_pkbuf_t *pkbuf);
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int gtp_xact_update_rx(gtp_xact_t *xact, uint8_t type);
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int gtp_xact_commit(gtp_xact_t *xact);
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int gtp_xact_receive(gtp_node_t *gnode, gtp_header_t *h, gtp_xact_t **xact);
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gtp_xact_t *gtp_xact_find(ogs_index_t index);
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gtp_xact_t *gtp_xact_find_by_xid(
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gtp_node_t *gnode, uint8_t type, uint32_t xid);
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void gtp_xact_associate(gtp_xact_t *xact1, gtp_xact_t *xact2);
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void gtp_xact_deassociate(gtp_xact_t *xact1, gtp_xact_t *xact2);
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#ifdef __cplusplus
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}
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#endif
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#endif /* GTP_XACT_H */
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