/* * Copyright (C) 2011-2012 Free Software Foundation, Inc. * * Author: Nikos Mavrogiannopoulos * * This file is part of GnuTLS. * * The GnuTLS is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public License * as published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program. If not, see * */ /* This file contains the types and prototypes for the X.509 * certificate and CRL handling functions. */ #ifndef GNUTLS_DTLS_H #define GNUTLS_DTLS_H #include /* *INDENT-OFF* */ #ifdef __cplusplus extern "C" { #endif /* *INDENT-ON* */ #define GNUTLS_COOKIE_KEY_SIZE 16 void gnutls_dtls_set_timeouts(gnutls_session_t session, unsigned int retrans_timeout, unsigned int total_timeout); unsigned int gnutls_dtls_get_mtu(gnutls_session_t session); unsigned int gnutls_dtls_get_data_mtu(gnutls_session_t session); void gnutls_dtls_set_mtu(gnutls_session_t session, unsigned int mtu); int gnutls_dtls_set_data_mtu(gnutls_session_t session, unsigned int mtu); unsigned int gnutls_dtls_get_timeout(gnutls_session_t session); /** * gnutls_dtls_prestate_st: * @record_seq: record sequence number * @hsk_read_seq: handshake read sequence number * @hsk_write_seq: handshake write sequence number * * DTLS cookie prestate struct. This is usually never modified by * the application, it is used to carry the cookie data between * gnutls_dtls_cookie_send(), gnutls_dtls_cookie_verify() and * gnutls_dtls_prestate_set(). */ typedef struct { unsigned int record_seq; unsigned int hsk_read_seq; unsigned int hsk_write_seq; } gnutls_dtls_prestate_st; int gnutls_dtls_cookie_send(gnutls_datum_t * key, void *client_data, size_t client_data_size, gnutls_dtls_prestate_st * prestate, gnutls_transport_ptr_t ptr, gnutls_push_func push_func); int gnutls_dtls_cookie_verify(gnutls_datum_t * key, void *client_data, size_t client_data_size, void *_msg, size_t msg_size, gnutls_dtls_prestate_st * prestate); void gnutls_dtls_prestate_set(gnutls_session_t session, gnutls_dtls_prestate_st * prestate); unsigned int gnutls_record_get_discarded(gnutls_session_t session); /* *INDENT-OFF* */ #ifdef __cplusplus } #endif /* *INDENT-ON* */ #endif /* GNUTLS_DTLS_H */