88 lines
2.6 KiB
C
88 lines
2.6 KiB
C
/*
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* Copyright (C) 2011-2012 Free Software Foundation, Inc.
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*
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* Author: Nikos Mavrogiannopoulos
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*
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* This file is part of GnuTLS.
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*
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* The GnuTLS is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser 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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*/
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/* This file contains the types and prototypes for the X.509
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* certificate and CRL handling functions.
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*/
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#ifndef GNUTLS_DTLS_H
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#define GNUTLS_DTLS_H
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#include <gnutls/gnutls.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define GNUTLS_COOKIE_KEY_SIZE 16
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void gnutls_dtls_set_timeouts(gnutls_session_t session,
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unsigned int retrans_timeout,
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unsigned int total_timeout);
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unsigned int gnutls_dtls_get_mtu(gnutls_session_t session);
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unsigned int gnutls_dtls_get_data_mtu(gnutls_session_t session);
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void gnutls_dtls_set_mtu(gnutls_session_t session, unsigned int mtu);
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int gnutls_dtls_set_data_mtu(gnutls_session_t session, unsigned int mtu);
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unsigned int gnutls_dtls_get_timeout(gnutls_session_t session);
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/**
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* gnutls_dtls_prestate_st:
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* @record_seq: record sequence number
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* @hsk_read_seq: handshake read sequence number
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* @hsk_write_seq: handshake write sequence number
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*
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* DTLS cookie prestate struct. This is usually never modified by
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* the application, it is used to carry the cookie data between
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* gnutls_dtls_cookie_send(), gnutls_dtls_cookie_verify() and
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* gnutls_dtls_prestate_set().
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*/
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typedef struct {
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unsigned int record_seq;
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unsigned int hsk_read_seq;
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unsigned int hsk_write_seq;
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} gnutls_dtls_prestate_st;
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int gnutls_dtls_cookie_send(gnutls_datum_t *key, void *client_data,
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size_t client_data_size,
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gnutls_dtls_prestate_st *prestate,
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gnutls_transport_ptr_t ptr,
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gnutls_push_func push_func);
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int gnutls_dtls_cookie_verify(gnutls_datum_t *key, void *client_data,
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size_t client_data_size, void *_msg,
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size_t msg_size,
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gnutls_dtls_prestate_st *prestate);
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void gnutls_dtls_prestate_set(gnutls_session_t session,
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gnutls_dtls_prestate_st *prestate);
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unsigned int gnutls_record_get_discarded(gnutls_session_t session);
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#ifdef __cplusplus
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}
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#endif
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#endif /* GNUTLS_DTLS_H */
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