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https://gitea.osmocom.org/cellular-infrastructure/osmo-upf.git
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bede7f130f
This lookup was taking ages specially when UPF already managed thousands of sessions. Related: SYS#6398 Change-Id: I7df8fd945eedbda98bd08e9fb2f382e0f55c2983
77 lines
2.3 KiB
C
77 lines
2.3 KiB
C
/*
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* (C) 2021-2022 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
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* All Rights Reserved.
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*
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* Author: Neels Janosch Hofmeyr <nhofmeyr@sysmocom.de>
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*
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* SPDX-License-Identifier: GPL-2.0+
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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 General Public License as published by
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* the Free Software Foundation; either version 2 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 <http://www.gnu.org/licenses/>.
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*
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*/
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#pragma once
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#include <stdint.h>
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#include <osmocom/core/linuxlist.h>
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#include <osmocom/core/socket.h>
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#include <osmocom/core/fsm.h>
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#include <osmocom/upf/up_session.h>
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#include <osmocom/upf/upf_gtp.h>
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#include <osmocom/upf/upf_nft.h>
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#define LOG_UP_GTP_ACTION(A, LEVEL, FMT, ARGS...) \
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LOGP(DGTP, LEVEL, "%s: " FMT, up_gtp_action_to_str_c(OTC_SELECT, A), ##ARGS)
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struct up_session;
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enum up_gtp_action_kind {
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UP_GTP_DROP,
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UP_GTP_U_TUNEND,
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UP_GTP_U_TUNMAP,
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};
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struct up_gtp_action {
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struct llist_head entry;
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struct up_session *session;
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uint16_t pdr_access;
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uint16_t pdr_core;
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enum up_gtp_action_kind kind;
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union {
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/* En-/De-capsulate GTP: add/remove a GTP header and forward the GTP payload from/to plain IP. */
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struct upf_tunend tunend;
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/* Tunnel-map GTP: translate from one TEID to another and forward */
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struct upf_tunmap tunmap;
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};
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/* volatile loop variable to match up wanted and actually present GTP actions */
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void *handle;
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};
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struct up_gtp_action *up_gtp_action_alloc(void *ctx, struct up_session *session, enum up_gtp_action_kind kind, struct llist_head *dst);
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void up_gtp_action_free(struct up_gtp_action *a);
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int up_gtp_action_cmp(const struct up_gtp_action *a, const struct up_gtp_action *b);
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int up_gtp_action_enable(struct up_gtp_action *a);
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int up_gtp_action_disable(struct up_gtp_action *a);
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int up_gtp_action_to_str_buf(char *buf, size_t buflen, const struct up_gtp_action *a);
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char *up_gtp_action_to_str_c(void *ctx, const struct up_gtp_action *a);
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