65 lines
1.8 KiB
C
65 lines
1.8 KiB
C
/*
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* Copyright (C) 2023 sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
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* Author: Alexander Couzens <acouzens@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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*/
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#ifndef OSMO_EPDG_UTILS_H_
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#define OSMO_EPDG_UTILS_H_
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#include <osmocom/core/msgb.h>
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#include <sa/ike_sa.h>
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#include <utils/chunk.h>
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#include <utils/identification.h>
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#define IPA_ALLOC_SIZE 1200
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enum ue_state {
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/* Initial */
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UE_UNAUTHENTICATED,
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/* Authenticated */
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UE_AUTHENTICATED,
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/* Wait for GSUP Update Location Request */
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UE_WAIT_LOCATION_UPDATE,
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/* Wait for GSUP Tunnel Request */
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UE_WAIT_TUNNEL,
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/* Everything ready, data can flow */
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UE_CONNECTED,
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/* Notify the osmo-epdg about destruction, wait for an answer */
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UE_DISCONNECTING,
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UE_DESTROYED,
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};
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/* TODO: how to clean up/garbage collect */
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struct osmo_epdg_ue {
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/* increasing uniq id */
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uint32_t id;
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/* imsi should be uniq, need protected against fake UE */
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char *imsi;
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enum ue_state state;
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/* TODO: missing strongswan session pointer */
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ike_sa_t *ike_sa;
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};
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typedef struct osmo_epdg_ue osmo_epdg_ue_t;
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struct msgb *chunk_to_msgb(chunk_t *chunk);
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int get_imsi(identification_t *id, char *imsi, size_t imsi_len);
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int get_imsi_ike(ike_sa_t *ike_sa, char *imsi, size_t imsi_len);
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int get_apn(ike_sa_t *sa, char *apn, size_t apn_len);
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#endif /* OSMO_EPDG_UTILS_H_ */
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