2 * Copyright (C) 2000-2012 Free Software Foundation, Inc.
4 * Author: Nikos Mavrogiannopoulos
6 * This file is part of GnuTLS.
8 * The GnuTLS is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public License
10 * as published by the Free Software Foundation; either version 3 of
11 * the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public License
19 * along with this program. If not, see <http://www.gnu.org/licenses/>
26 #include <gnutls_errors.h>
28 int _gnutls_send_handshake (gnutls_session_t session
, mbuffer_st
* bufel
,
29 gnutls_handshake_description_t type
);
30 int _gnutls_recv_hello_request (gnutls_session_t session
, void *data
,
32 int _gnutls_send_hello (gnutls_session_t session
, int again
);
33 int _gnutls_recv_hello (gnutls_session_t session
, uint8_t * data
, int datalen
);
34 int _gnutls_recv_handshake (gnutls_session_t session
,
35 gnutls_handshake_description_t type
,
36 unsigned int optional
, gnutls_buffer_st
* buf
);
37 int _gnutls_generate_session_id (uint8_t * session_id
, uint8_t * len
);
38 void _gnutls_set_server_random (gnutls_session_t session
, uint8_t * rnd
);
39 void _gnutls_set_client_random (gnutls_session_t session
, uint8_t * rnd
);
40 int _gnutls_tls_create_random (uint8_t * dst
);
42 int _gnutls_find_pk_algos_in_ciphersuites (uint8_t * data
, int datalen
);
43 int _gnutls_server_select_suite (gnutls_session_t session
, uint8_t * data
,
44 unsigned int datalen
);
46 int _gnutls_negotiate_version (gnutls_session_t session
,
47 gnutls_protocol_t adv_version
);
48 int _gnutls_user_hello_func (gnutls_session_t session
,
49 gnutls_protocol_t adv_version
);
51 void _gnutls_handshake_hash_buffers_clear (gnutls_session_t session
);
53 #define STATE session->internals.handshake_state
54 /* This returns true if we have got there
55 * before (and not finished due to an interrupt).
57 #define AGAIN(target) (STATE==target?1:0)
58 #define AGAIN2(state, target) (state==target?1:0)
60 inline static int handshake_remaining_time(gnutls_session_t session
)
62 if (session
->internals
.handshake_endtime
)
64 time_t now
= gnutls_time(0);
65 if (now
< session
->internals
.handshake_endtime
)
66 return (session
->internals
.handshake_endtime
- now
) * 1000;
68 return gnutls_assert_val(GNUTLS_E_TIMEDOUT
);