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/*
* Copyright (C) 2000-2012 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 <http://www.gnu.org/licenses/>
*
*/
#ifndef HANDSHAKE_H
#define HANDSHAKE_H
#include <gnutls_errors.h>
int _gnutls_send_handshake(gnutls_session_t session, mbuffer_st * bufel,
gnutls_handshake_description_t type);
int _gnutls_recv_hello_request(gnutls_session_t session, void *data,
uint32_t data_size);
int _gnutls_recv_handshake(gnutls_session_t session,
gnutls_handshake_description_t type,
unsigned int optional, gnutls_buffer_st * buf);
int _gnutls_generate_session_id(uint8_t * session_id, uint8_t * len);
int _gnutls_set_server_random(gnutls_session_t session, uint8_t * rnd);
int _gnutls_set_client_random(gnutls_session_t session, uint8_t * rnd);
int _gnutls_find_pk_algos_in_ciphersuites(uint8_t * data, int datalen);
int _gnutls_server_select_suite(gnutls_session_t session, uint8_t * data,
unsigned int datalen, unsigned scsv_only);
int _gnutls_negotiate_version(gnutls_session_t session,
gnutls_protocol_t adv_version);
int _gnutls_user_hello_func(gnutls_session_t session,
gnutls_protocol_t adv_version);
void _gnutls_handshake_hash_buffers_clear(gnutls_session_t session);
#define STATE session->internals.handshake_state
#define FINAL_STATE session->internals.handshake_final_state
/* This returns true if we have got there
* before (and not finished due to an interrupt).
*/
#define AGAIN(target) (STATE==target?1:0)
#define FAGAIN(target) (FINAL_STATE==target?1:0)
#define AGAIN2(state, target) (state==target?1:0)
inline static int handshake_remaining_time(gnutls_session_t session)
{
if (session->internals.handshake_endtime) {
struct timespec now;
gettime(&now);
if (now.tv_sec < session->internals.handshake_endtime)
return (session->internals.handshake_endtime -
now.tv_sec) * 1000;
else
return gnutls_assert_val(GNUTLS_E_TIMEDOUT);
}
return 0;
}
#endif
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