Line data    Source code

       1             : /* ====================================================================
       2             :  * Copyright (c) 2000-2002 The OpenSSL Project.  All rights reserved.
       3             :  *
       4             :  * Redistribution and use in source and binary forms, with or without
       5             :  * modification, are permitted provided that the following conditions
       6             :  * are met:
       7             :  *
       8             :  * 1. Redistributions of source code must retain the above copyright
       9             :  *    notice, this list of conditions and the following disclaimer.
      10             :  *
      11             :  * 2. Redistributions in binary form must reproduce the above copyright
      12             :  *    notice, this list of conditions and the following disclaimer in
      13             :  *    the documentation and/or other materials provided with the
      14             :  *    distribution.
      15             :  *
      16             :  * 3. All advertising materials mentioning features or use of this
      17             :  *    software must display the following acknowledgment:
      18             :  *    "This product includes software developed by the OpenSSL Project
      19             :  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
      20             :  *
      21             :  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
      22             :  *    endorse or promote products derived from this software without
      23             :  *    prior written permission. For written permission, please contact
      24             :  *    licensing@OpenSSL.org.
      25             :  *
      26             :  * 5. Products derived from this software may not be called "OpenSSL"
      27             :  *    nor may "OpenSSL" appear in their names without prior written
      28             :  *    permission of the OpenSSL Project.
      29             :  *
      30             :  * 6. Redistributions of any form whatsoever must retain the following
      31             :  *    acknowledgment:
      32             :  *    "This product includes software developed by the OpenSSL Project
      33             :  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
      34             :  *
      35             :  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
      36             :  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      37             :  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
      38             :  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
      39             :  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
      40             :  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
      41             :  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
      42             :  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      43             :  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
      44             :  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
      45             :  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
      46             :  * OF THE POSSIBILITY OF SUCH DAMAGE.
      47             :  * ====================================================================
      48             :  *
      49             :  * This product includes cryptographic software written by Eric Young
      50             :  * (eay@cryptsoft.com).  This product includes software written by Tim
      51             :  * Hudson (tjh@cryptsoft.com).
      52             :  *
      53             :  */
      54             : 
      55             : #include "eng_int.h"
      56             : 
      57             : /*
      58             :  * If this symbol is defined then ENGINE_get_default_ECDSA(), the function
      59             :  * that is used by ECDSA to hook in implementation code and cache defaults
      60             :  * (etc), will display brief debugging summaries to stderr with the 'nid'.
      61             :  */
      62             : /* #define ENGINE_ECDSA_DEBUG */
      63             : 
      64             : static ENGINE_TABLE *ecdsa_table = NULL;
      65             : static const int dummy_nid = 1;
      66             : 
      67           0 : void ENGINE_unregister_ECDSA(ENGINE *e)
      68             : {
      69           0 :     engine_table_unregister(&ecdsa_table, e);
      70           0 : }
      71             : 
      72           0 : static void engine_unregister_all_ECDSA(void)
      73             : {
      74           0 :     engine_table_cleanup(&ecdsa_table);
      75           0 : }
      76             : 
      77           0 : int ENGINE_register_ECDSA(ENGINE *e)
      78             : {
      79           0 :     if (e->ecdsa_meth)
      80           0 :         return engine_table_register(&ecdsa_table,
      81             :                                      engine_unregister_all_ECDSA, e,
      82             :                                      &dummy_nid, 1, 0);
      83             :     return 1;
      84             : }
      85             : 
      86           0 : void ENGINE_register_all_ECDSA()
      87             : {
      88             :     ENGINE *e;
      89             : 
      90           0 :     for (e = ENGINE_get_first(); e; e = ENGINE_get_next(e))
      91           0 :         ENGINE_register_ECDSA(e);
      92           0 : }
      93             : 
      94           0 : int ENGINE_set_default_ECDSA(ENGINE *e)
      95             : {
      96           0 :     if (e->ecdsa_meth)
      97           0 :         return engine_table_register(&ecdsa_table,
      98             :                                      engine_unregister_all_ECDSA, e,
      99             :                                      &dummy_nid, 1, 1);
     100             :     return 1;
     101             : }
     102             : 
     103             : /*
     104             :  * Exposed API function to get a functional reference from the implementation
     105             :  * table (ie. try to get a functional reference from the tabled structural
     106             :  * references).
     107             :  */
     108           0 : ENGINE *ENGINE_get_default_ECDSA(void)
     109             : {
     110           0 :     return engine_table_select(&ecdsa_table, dummy_nid);
     111             : }
     112             : 
     113             : /* Obtains an ECDSA implementation from an ENGINE functional reference */
     114           0 : const ECDSA_METHOD *ENGINE_get_ECDSA(const ENGINE *e)
     115             : {
     116           0 :     return e->ecdsa_meth;
     117             : }
     118             : 
     119             : /* Sets an ECDSA implementation in an ENGINE structure */
     120           0 : int ENGINE_set_ECDSA(ENGINE *e, const ECDSA_METHOD *ecdsa_meth)
     121             : {
     122           0 :     e->ecdsa_meth = ecdsa_meth;
     123           0 :     return 1;
     124             : }