lib/gnutls_handshake.h

   1 /*
   2  * Copyright (C) 2000-2012 Free Software Foundation, Inc.
   3  *
   4  * Author: Nikos Mavrogiannopoulos
   5  *
   6  * This file is part of GnuTLS.
   7  *
   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.
  12  *
  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.
  17  *
  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/>
  20  *
  21  */
  22
  23 #ifndef HANDSHAKE_H
  24 #define HANDSHAKE_H
  25
  26 int _gnutls_send_handshake (gnutls_session_t session, mbuffer_st * bufel,
  27                             gnutls_handshake_description_t type);
  28 int _gnutls_recv_hello_request (gnutls_session_t session, void *data,
  29                                 uint32_t data_size);
  30 int _gnutls_send_hello (gnutls_session_t session, int again);
  31 int _gnutls_recv_hello (gnutls_session_t session, uint8_t * data, int datalen);
  32 int _gnutls_recv_handshake (gnutls_session_t session,
  33                         gnutls_handshake_description_t type,
  34                         unsigned int optional, gnutls_buffer_st* buf);
  35 int _gnutls_generate_session_id (uint8_t * session_id, uint8_t * len);
  36 int _gnutls_handshake_common (gnutls_session_t session);
  37 int _gnutls_handshake_client (gnutls_session_t session);
  38 int _gnutls_handshake_server (gnutls_session_t session);
  39 void _gnutls_set_server_random (gnutls_session_t session, uint8_t * rnd);
  40 void _gnutls_set_client_random (gnutls_session_t session, uint8_t * rnd);
  41 int _gnutls_tls_create_random (uint8_t * dst);
  42
  43 int _gnutls_find_pk_algos_in_ciphersuites (uint8_t * data, int datalen);
  44 int _gnutls_server_select_suite (gnutls_session_t session, uint8_t * data,
  45                                  unsigned int datalen);
  46
  47 int _gnutls_negotiate_version (gnutls_session_t session,
  48                                gnutls_protocol_t adv_version);
  49 int _gnutls_user_hello_func (gnutls_session_t session,
  50                              gnutls_protocol_t adv_version);
  51
  52 void _gnutls_handshake_hash_buffers_clear (gnutls_session_t session);
  53
  54 #define STATE session->internals.handshake_state
  55 /* This returns true if we have got there
  56  * before (and not finished due to an interrupt).
  57  */
  58 #define AGAIN(target) (STATE==target?1:0)
  59 #define AGAIN2(state, target) (state==target?1:0)
  60
  61 #endif