1132718Skan/* ==================================================================== 2117395Skan * Copyright (c) 2000 The OpenSSL Project. All rights reserved. 3117395Skan * 4132718Skan * Redistribution and use in source and binary forms, with or without 5117395Skan * modification, are permitted provided that the following conditions 6132718Skan * are met: 7117395Skan * 8117395Skan * 1. Redistributions of source code must retain the above copyright 9117395Skan * notice, this list of conditions and the following disclaimer. 10117395Skan * 11132718Skan * 2. Redistributions in binary form must reproduce the above copyright 12117395Skan * notice, this list of conditions and the following disclaimer in 13117395Skan * the documentation and/or other materials provided with the 14117395Skan * distribution. 15117395Skan * 16117395Skan * 3. All advertising materials mentioning features or use of this 17132718Skan * software must display the following acknowledgment: 18117395Skan * "This product includes software developed by the OpenSSL Project 19117395Skan * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 20117395Skan * 21132718Skan * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 22132718Skan * endorse or promote products derived from this software without 23132718Skan * prior written permission. For written permission, please contact 24132718Skan * licensing@OpenSSL.org. 25132718Skan * 26132718Skan * 5. Products derived from this software may not be called "OpenSSL" 27132718Skan * nor may "OpenSSL" appear in their names without prior written 28132718Skan * permission of the OpenSSL Project. 29132718Skan * 30132718Skan * 6. Redistributions of any form whatsoever must retain the following 31132718Skan * acknowledgment: 32132718Skan * "This product includes software developed by the OpenSSL Project 33132718Skan * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 34132718Skan * 35132718Skan * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 36132718Skan * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 37117395Skan * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 38117395Skan * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 39117395Skan * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 40117395Skan * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 41117395Skan * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 42117395Skan * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 43117395Skan * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 44117395Skan * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 45117395Skan * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 46132718Skan * OF THE POSSIBILITY OF SUCH DAMAGE. 47117395Skan * ==================================================================== 48117395Skan * 49117395Skan * This product includes cryptographic software written by Eric Young 50132718Skan * (eay@cryptsoft.com). This product includes software written by Tim 51117395Skan * Hudson (tjh@cryptsoft.com). 52117395Skan * 53117395Skan */ 54117395Skan 55117395Skan#include "eng_int.h" 56117395Skan 57132718Skan/* If this symbol is defined then ENGINE_get_default_DSA(), the function that is 58132718Skan * used by DSA to hook in implementation code and cache defaults (etc), will 59132718Skan * display brief debugging summaries to stderr with the 'nid'. */ 60132718Skan/* #define ENGINE_DSA_DEBUG */ 61132718Skan 62132718Skanstatic ENGINE_TABLE *dsa_table = NULL; 63static const int dummy_nid = 1; 64 65void ENGINE_unregister_DSA(ENGINE *e) 66 { 67 engine_table_unregister(&dsa_table, e); 68 } 69 70static void engine_unregister_all_DSA(void) 71 { 72 engine_table_cleanup(&dsa_table); 73 } 74 75int ENGINE_register_DSA(ENGINE *e) 76 { 77 if(e->dsa_meth) 78 return engine_table_register(&dsa_table, 79 engine_unregister_all_DSA, e, &dummy_nid, 1, 0); 80 return 1; 81 } 82 83void ENGINE_register_all_DSA() 84 { 85 ENGINE *e; 86 87 for(e=ENGINE_get_first() ; e ; e=ENGINE_get_next(e)) 88 ENGINE_register_DSA(e); 89 } 90 91int ENGINE_set_default_DSA(ENGINE *e) 92 { 93 if(e->dsa_meth) 94 return engine_table_register(&dsa_table, 95 engine_unregister_all_DSA, e, &dummy_nid, 1, 1); 96 return 1; 97 } 98 99/* Exposed API function to get a functional reference from the implementation 100 * table (ie. try to get a functional reference from the tabled structural 101 * references). */ 102ENGINE *ENGINE_get_default_DSA(void) 103 { 104 return engine_table_select(&dsa_table, dummy_nid); 105 } 106 107/* Obtains an DSA implementation from an ENGINE functional reference */ 108const DSA_METHOD *ENGINE_get_DSA(const ENGINE *e) 109 { 110 return e->dsa_meth; 111 } 112 113/* Sets an DSA implementation in an ENGINE structure */ 114int ENGINE_set_DSA(ENGINE *e, const DSA_METHOD *dsa_meth) 115 { 116 e->dsa_meth = dsa_meth; 117 return 1; 118 } 119