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