1 /* 2 * Copyright (c) 2018 Bob Beck <beck@openbsd.org> 3 * 4 * Permission to use, copy, modify, and distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 /* OpenSSL style init */ 18 19 #include <pthread.h> 20 #include <stdio.h> 21 22 #include <openssl/objects.h> 23 #include <openssl/conf.h> 24 #include <openssl/evp.h> 25 #include <openssl/err.h> 26 #include "cryptlib.h" 27 28 int OpenSSL_config(const char *); 29 int OpenSSL_no_config(void); 30 31 static pthread_t crypto_init_thread; 32 33 static void 34 OPENSSL_init_crypto_internal(void) 35 { 36 crypto_init_thread = pthread_self(); 37 OPENSSL_cpuid_setup(); 38 ERR_load_crypto_strings(); 39 OpenSSL_add_all_ciphers(); 40 OpenSSL_add_all_digests(); 41 } 42 43 int 44 OPENSSL_init_crypto(uint64_t opts, const void *settings) 45 { 46 static pthread_once_t once = PTHREAD_ONCE_INIT; 47 48 if (pthread_equal(pthread_self(), crypto_init_thread)) 49 return 1; /* don't recurse */ 50 51 if (pthread_once(&once, OPENSSL_init_crypto_internal) != 0) 52 return 0; 53 54 if ((opts & OPENSSL_INIT_NO_LOAD_CONFIG) && 55 (OpenSSL_no_config() == 0)) 56 return 0; 57 58 if ((opts & OPENSSL_INIT_LOAD_CONFIG) && 59 (OpenSSL_config(NULL) == 0)) 60 return 0; 61 62 return 1; 63 } 64