77 lines
2.2 KiB
C
77 lines
2.2 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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// TODO: check license
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/**
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* @defgroup osmo_epdg_ipa_client osmo_epdg_ipa_client
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* @{ @ingroup eap_simaka_sql
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*/
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#ifndef OSMO_EPDG_IPA_CLIENT_H_
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#define OSMO_EPDG_IPA_CLIENT_H_
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#include <utils/chunk.h>
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struct msgb;
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typedef struct osmo_epdg_ipa_client_t osmo_epdg_ipa_client_t;
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typedef bool (*ipa_cb_t)(void *data, osmo_epdg_ipa_client_t *client, struct msgb *pdu);
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/**
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* IP Access Protocol
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*/
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struct osmo_epdg_ipa_client_t {
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/**
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* Register a callback to invoke when a IPA PDU of proto arrived.
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*
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* Only called when a full PDU has arrived.
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*
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* @param cb callback function, NULL to unregister
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* @param data data to pass to callback
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*/
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int (*on_recv)(osmo_epdg_ipa_client_t *this, uint8_t osmo_proto, ipa_cb_t cb, void *data);
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/**
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* Send a PDU over the IPA connection
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*
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* @param proto define the protocol
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* @param buf data buffer to write
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* @param len number of bytes to write
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* @return number of bytes written, -1 on error
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*/
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ssize_t (*send)(osmo_epdg_ipa_client_t *this, uint8_t osmo_proto, struct msgb *msg);
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int (*on_error)(osmo_epdg_ipa_client_t *this, uint8_t osmo_proto, ipa_cb_t cb, void *data);
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// TODO: unsure if we need this int (*connect)(osmo_epdg_ipa_client_t *this);
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int (*disconnect)(osmo_epdg_ipa_client_t *this);
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/**
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* Destroy a osmo_epdg_ipa_client_t.
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*/
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void (*destroy)(osmo_epdg_ipa_client_t *this);
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};
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/**
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* Create a osmo_epdg_ipa_client instance.
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*
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* @param address the address of the gsup server */
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osmo_epdg_ipa_client_t *osmo_epdg_ipa_client_create(char *addr);
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#endif /** OSMO_EPDG_IPA_CLIENT_H_ @}*/
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