1109998Smarkm/* ==================================================================== 2109998Smarkm * Copyright (c) 2000 The OpenSSL Project. All rights reserved. 3109998Smarkm * 4109998Smarkm * Redistribution and use in source and binary forms, with or without 5109998Smarkm * modification, are permitted provided that the following conditions 6109998Smarkm * are met: 7109998Smarkm * 8109998Smarkm * 1. Redistributions of source code must retain the above copyright 9280304Sjkim * notice, this list of conditions and the following disclaimer. 10109998Smarkm * 11109998Smarkm * 2. Redistributions in binary form must reproduce the above copyright 12109998Smarkm * notice, this list of conditions and the following disclaimer in 13109998Smarkm * the documentation and/or other materials provided with the 14109998Smarkm * distribution. 15109998Smarkm * 16109998Smarkm * 3. All advertising materials mentioning features or use of this 17109998Smarkm * software must display the following acknowledgment: 18109998Smarkm * "This product includes software developed by the OpenSSL Project 19109998Smarkm * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 20109998Smarkm * 21109998Smarkm * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 22109998Smarkm * endorse or promote products derived from this software without 23109998Smarkm * prior written permission. For written permission, please contact 24109998Smarkm * licensing@OpenSSL.org. 25109998Smarkm * 26109998Smarkm * 5. Products derived from this software may not be called "OpenSSL" 27109998Smarkm * nor may "OpenSSL" appear in their names without prior written 28109998Smarkm * permission of the OpenSSL Project. 29109998Smarkm * 30109998Smarkm * 6. Redistributions of any form whatsoever must retain the following 31109998Smarkm * acknowledgment: 32109998Smarkm * "This product includes software developed by the OpenSSL Project 33109998Smarkm * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 34109998Smarkm * 35109998Smarkm * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 36109998Smarkm * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 37109998Smarkm * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 38109998Smarkm * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 39109998Smarkm * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 40109998Smarkm * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 41109998Smarkm * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 42109998Smarkm * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 43109998Smarkm * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 44109998Smarkm * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 45109998Smarkm * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 46109998Smarkm * OF THE POSSIBILITY OF SUCH DAMAGE. 47109998Smarkm * ==================================================================== 48109998Smarkm * 49109998Smarkm * This product includes cryptographic software written by Eric Young 50109998Smarkm * (eay@cryptsoft.com). This product includes software written by Tim 51109998Smarkm * Hudson (tjh@cryptsoft.com). 52109998Smarkm * 53109998Smarkm */ 54109998Smarkm 55109998Smarkm#include "eng_int.h" 56109998Smarkm 57280304Sjkim/* 58280304Sjkim * If this symbol is defined then ENGINE_get_default_DSA(), the function that 59280304Sjkim * is used by DSA to hook in implementation code and cache defaults (etc), 60280304Sjkim * will display brief debugging summaries to stderr with the 'nid'. 61280304Sjkim */ 62109998Smarkm/* #define ENGINE_DSA_DEBUG */ 63109998Smarkm 64109998Smarkmstatic ENGINE_TABLE *dsa_table = NULL; 65109998Smarkmstatic const int dummy_nid = 1; 66109998Smarkm 67109998Smarkmvoid ENGINE_unregister_DSA(ENGINE *e) 68280304Sjkim{ 69280304Sjkim engine_table_unregister(&dsa_table, e); 70280304Sjkim} 71109998Smarkm 72109998Smarkmstatic void engine_unregister_all_DSA(void) 73280304Sjkim{ 74280304Sjkim engine_table_cleanup(&dsa_table); 75280304Sjkim} 76109998Smarkm 77109998Smarkmint ENGINE_register_DSA(ENGINE *e) 78280304Sjkim{ 79280304Sjkim if (e->dsa_meth) 80280304Sjkim return engine_table_register(&dsa_table, 81280304Sjkim engine_unregister_all_DSA, e, &dummy_nid, 82280304Sjkim 1, 0); 83280304Sjkim return 1; 84280304Sjkim} 85109998Smarkm 86109998Smarkmvoid ENGINE_register_all_DSA() 87280304Sjkim{ 88280304Sjkim ENGINE *e; 89109998Smarkm 90280304Sjkim for (e = ENGINE_get_first(); e; e = ENGINE_get_next(e)) 91280304Sjkim ENGINE_register_DSA(e); 92280304Sjkim} 93109998Smarkm 94109998Smarkmint ENGINE_set_default_DSA(ENGINE *e) 95280304Sjkim{ 96280304Sjkim if (e->dsa_meth) 97280304Sjkim return engine_table_register(&dsa_table, 98280304Sjkim engine_unregister_all_DSA, e, &dummy_nid, 99280304Sjkim 1, 1); 100280304Sjkim return 1; 101280304Sjkim} 102109998Smarkm 103280304Sjkim/* 104280304Sjkim * Exposed API function to get a functional reference from the implementation 105109998Smarkm * table (ie. try to get a functional reference from the tabled structural 106280304Sjkim * references). 107280304Sjkim */ 108109998SmarkmENGINE *ENGINE_get_default_DSA(void) 109280304Sjkim{ 110280304Sjkim return engine_table_select(&dsa_table, dummy_nid); 111280304Sjkim} 112109998Smarkm 113109998Smarkm/* Obtains an DSA implementation from an ENGINE functional reference */ 114109998Smarkmconst DSA_METHOD *ENGINE_get_DSA(const ENGINE *e) 115280304Sjkim{ 116280304Sjkim return e->dsa_meth; 117280304Sjkim} 118109998Smarkm 119109998Smarkm/* Sets an DSA implementation in an ENGINE structure */ 120109998Smarkmint ENGINE_set_DSA(ENGINE *e, const DSA_METHOD *dsa_meth) 121280304Sjkim{ 122280304Sjkim e->dsa_meth = dsa_meth; 123280304Sjkim return 1; 124280304Sjkim} 125