lib/gnutls_anon_cred.c

   1 /*
   2  * Copyright (C) 2001, 2004, 2005, 2007, 2008, 2009, 2010 Free Software
   3  * Foundation, Inc.
   4  *
   5  * Author: Nikos Mavrogiannopoulos
   6  *
   7  * This file is part of GnuTLS.
   8  *
   9  * The GnuTLS is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public License
  11  * as published by the Free Software Foundation; either version 2.1 of
  12  * the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  22  * USA
  23  *
  24  */
  25
  26 #include "gnutls_int.h"
  27
  28 #ifdef ENABLE_ANON
  29
  30 #include "gnutls_errors.h"
  31 #include "auth_anon.h"
  32 #include "gnutls_auth.h"
  33 #include "gnutls_dh.h"
  34 #include "gnutls_num.h"
  35 #include "gnutls_mpi.h"
  36
  37 /**
  38  * gnutls_anon_free_server_credentials:
  39  * @sc: is a #gnutls_anon_server_credentials_t structure.
  40  *
  41  * This structure is complex enough to manipulate directly thus this
  42  * helper function is provided in order to free (deallocate) it.
  43  **/
  44 void
  45 gnutls_anon_free_server_credentials (gnutls_anon_server_credentials_t sc)
  46 {
  47
  48   gnutls_free (sc);
  49 }
  50
  51 /**
  52  * gnutls_anon_allocate_server_credentials:
  53  * @sc: is a pointer to a #gnutls_anon_server_credentials_t structure.
  54  *
  55  * This structure is complex enough to manipulate directly thus this
  56  * helper function is provided in order to allocate it.
  57  *
  58  * Returns: %GNUTLS_E_SUCCESS on success, or an error code.
  59  **/
  60 int
  61 gnutls_anon_allocate_server_credentials (gnutls_anon_server_credentials_t *
  62                                          sc)
  63 {
  64
  65   *sc = gnutls_calloc (1, sizeof (anon_server_credentials_st));
  66
  67   return 0;
  68 }
  69
  70
  71 /**
  72  * gnutls_anon_free_client_credentials:
  73  * @sc: is a #gnutls_anon_client_credentials_t structure.
  74  *
  75  * This structure is complex enough to manipulate directly thus this
  76  * helper function is provided in order to free (deallocate) it.
  77  **/
  78 void
  79 gnutls_anon_free_client_credentials (gnutls_anon_client_credentials_t sc)
  80 {
  81 }
  82
  83 static struct gnutls_anon_client_credentials_st anon_dummy_struct;
  84 static const gnutls_anon_client_credentials_t anon_dummy = &anon_dummy_struct;
  85
  86 /**
  87  * gnutls_anon_allocate_client_credentials:
  88  * @sc: is a pointer to a #gnutls_anon_client_credentials_t structure.
  89  *
  90  * This structure is complex enough to manipulate directly thus
  91  * this helper function is provided in order to allocate it.
  92  *
  93  * Returns: %GNUTLS_E_SUCCESS on success, or an error code.
  94  **/
  95 int
  96 gnutls_anon_allocate_client_credentials (gnutls_anon_client_credentials_t *
  97                                          sc)
  98 {
  99   /* anon_dummy is only there for *sc not to be null.
 100    * it is not used at all;
 101    */
 102   *sc = anon_dummy;
 103
 104   return 0;
 105 }
 106
 107 /**
 108  * gnutls_anon_set_server_dh_params:
 109  * @res: is a gnutls_anon_server_credentials_t structure
 110  * @dh_params: is a structure that holds Diffie-Hellman parameters.
 111  *
 112  * This function will set the Diffie-Hellman parameters for an
 113  * anonymous server to use.  These parameters will be used in
 114  * Anonymous Diffie-Hellman cipher suites.
 115  **/
 116 void
 117 gnutls_anon_set_server_dh_params (gnutls_anon_server_credentials_t res,
 118                                   gnutls_dh_params_t dh_params)
 119 {
 120   res->dh_params = dh_params;
 121 }
 122
 123 /**
 124  * gnutls_anon_set_server_params_function:
 125  * @res: is a gnutls_certificate_credentials_t structure
 126  * @func: is the function to be called
 127  *
 128  * This function will set a callback in order for the server to get
 129  * the Diffie-Hellman parameters for anonymous authentication.  The
 130  * callback should return zero on success.
 131  **/
 132 void
 133 gnutls_anon_set_server_params_function (gnutls_anon_server_credentials_t res,
 134                                         gnutls_params_function * func)
 135 {
 136   res->params_func = func;
 137 }
 138
 139 #endif