46 lines
1.5 KiB
C
46 lines
1.5 KiB
C
/* (C) 2021 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
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* Author: Pau Espin Pedrol <pespin@sysmocom.de>
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* All Rights Reserved
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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 Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/lienses/>.
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*
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*/
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#pragma once
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#include <osmocom/core/socket.h>
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#include <osmocom/core/linuxlist.h>
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struct hnb;
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struct hnb_ue;
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int hnb_gtp_bind(struct hnb *hnb);
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void hnb_gtp_unbind(struct hnb *hnb);
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struct gtp_conn {
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struct llist_head list; /* Item in struct hnb->ue_list */
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struct hnb_ue *ue; /* backpointer */
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uint32_t id;
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struct osmo_sockaddr loc_addr;
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struct osmo_sockaddr rem_addr;
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uint32_t loc_tei;
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uint32_t rem_tei;
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uint16_t seq_nr;
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};
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struct gtp_conn *gtp_conn_alloc(struct hnb_ue *ue);
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void gtp_conn_free(struct gtp_conn *conn);
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int gtp_conn_setup(struct gtp_conn *conn, const struct osmo_sockaddr *rem_addr, uint32_t rem_tei);
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int gtp_conn_tx(struct gtp_conn *conn, const uint8_t *gtpu_payload, unsigned gtpu_payload_len);
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