1/* 2 * Copyright (c) 2011-12 Apple Inc. All Rights Reserved. 3 * 4 * @APPLE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. Please obtain a copy of the License at 10 * http://www.opensource.apple.com/apsl/ and read it before using this 11 * file. 12 * 13 * The Original Code and all software distributed under the License are 14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 18 * Please see the License for the specific language governing rights and 19 * limitations under the License. 20 * 21 * @APPLE_LICENSE_HEADER_END@ 22 */ 23 24/* 25 * Copyright (c) 2010 Kungliga Tekniska Högskolan 26 * (Royal Institute of Technology, Stockholm, Sweden). 27 * All rights reserved. 28 * 29 * Portions Copyright (c) 2010 Apple Inc. All rights reserved. 30 * 31 * Redistribution and use in source and binary forms, with or without 32 * modification, are permitted provided that the following conditions 33 * are met: 34 * 35 * 1. Redistributions of source code must retain the above copyright 36 * notice, this list of conditions and the following disclaimer. 37 * 38 * 2. Redistributions in binary form must reproduce the above copyright 39 * notice, this list of conditions and the following disclaimer in the 40 * documentation and/or other materials provided with the distribution. 41 * 42 * 3. Neither the name of the Institute nor the names of its contributors 43 * may be used to endorse or promote products derived from this software 44 * without specific prior written permission. 45 * 46 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 47 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 48 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 49 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 50 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 51 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 52 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 53 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 54 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 55 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 56 * SUCH DAMAGE. 57 */ 58 59#include "ossl-config.h" 60 61 62#include <stdio.h> 63#include <stdlib.h> 64 65#include "ossl-rand.h" 66#include "ossl-randi.h" 67 68#if defined(__APPLE_PRIVATE__) && !defined(__APPLE_TARGET_EMBEDDED__) 69 70#include <CommonCrypto/CommonRandomSPI.h> 71 72/* 73 * Unix /dev/random 74 */ 75static void 76cc_seed(const void *indata, int size) 77{ 78} 79 80 81static int 82cc_bytes(unsigned char *outdata, int size) 83{ 84 /* 85 * XXX until rdar://problem/8174874 is fixed CCRandomCopyBytes() 86 * won't work for sshd. 87 */ 88 if (CCRandomCopyBytes(kCCRandomDefault, outdata, size) != kCCSuccess) { 89 return (0); 90 } 91 return (1); 92} 93 94 95static void 96cc_cleanup(void) 97{ 98} 99 100 101static void 102cc_add(const void *indata, int size, double entropi) 103{ 104} 105 106 107static int 108cc_pseudorand(unsigned char *outdata, int size) 109{ 110 return (cc_bytes(outdata, size)); 111} 112 113 114static int 115cc_status(void) 116{ 117 return (1); 118} 119 120 121const RAND_METHOD ossl_rand_cc_method = 122{ 123 .seed = cc_seed, 124 .bytes = cc_bytes, 125 .cleanup = cc_cleanup, 126 .add = cc_add, 127 .pseudorand = cc_pseudorand, 128 .status = cc_status 129}; 130 131#endif /* __APPLE_PRIVATE__ */ 132 133const RAND_METHOD * 134RAND_cc_method(void) 135{ 136#if defined(__APPLE_PRIVATE__) && !defined(__APPLE_TARGET_EMBEDDED__) 137 return (&ossl_rand_cc_method); 138 139#else 140 return (NULL); 141#endif 142} 143