1 /* $OpenBSD: crypto_init.c,v 1.22 2024/10/17 14:27:57 jsing Exp $ */ 2 /* 3 * Copyright (c) 2018 Bob Beck <beck@openbsd.org> 4 * 5 * Permission to use, copy, modify, and distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 /* OpenSSL style init */ 19 20 #include <pthread.h> 21 #include <stdio.h> 22 23 #include <openssl/asn1.h> 24 #include <openssl/conf.h> 25 #include <openssl/err.h> 26 #include <openssl/evp.h> 27 #include <openssl/objects.h> 28 #include <openssl/x509v3.h> 29 30 #include "crypto_internal.h" 31 #include "x509_issuer_cache.h" 32 33 int OpenSSL_config(const char *); 34 int OpenSSL_no_config(void); 35 36 static pthread_once_t crypto_init_once = PTHREAD_ONCE_INIT; 37 static pthread_t crypto_init_thread; 38 static int crypto_init_cleaned_up; 39 40 void 41 OPENSSL_init(void) 42 { 43 } 44 LCRYPTO_ALIAS(OPENSSL_init); 45 46 static void 47 OPENSSL_init_crypto_internal(void) 48 { 49 crypto_init_thread = pthread_self(); 50 51 crypto_cpu_caps_init(); 52 53 ERR_load_crypto_strings(); 54 } 55 56 int 57 OPENSSL_init_crypto(uint64_t opts, const void *settings) 58 { 59 if (crypto_init_cleaned_up) { 60 CRYPTOerror(ERR_R_INIT_FAIL); 61 return 0; 62 } 63 64 if (pthread_equal(pthread_self(), crypto_init_thread)) 65 return 1; /* don't recurse */ 66 67 if (pthread_once(&crypto_init_once, OPENSSL_init_crypto_internal) != 0) 68 return 0; 69 70 if ((opts & OPENSSL_INIT_NO_LOAD_CONFIG) && 71 (OpenSSL_no_config() == 0)) 72 return 0; 73 74 if ((opts & OPENSSL_INIT_LOAD_CONFIG) && 75 (OpenSSL_config(NULL) == 0)) 76 return 0; 77 78 return 1; 79 } 80 LCRYPTO_ALIAS(OPENSSL_init_crypto); 81 82 void 83 OPENSSL_cleanup(void) 84 { 85 /* This currently calls init... */ 86 ERR_free_strings(); 87 88 CRYPTO_cleanup_all_ex_data(); 89 EVP_cleanup(); 90 91 X509_VERIFY_PARAM_table_cleanup(); 92 93 x509_issuer_cache_free(); 94 95 crypto_init_cleaned_up = 1; 96 } 97 LCRYPTO_ALIAS(OPENSSL_cleanup); 98 99 void 100 OpenSSL_add_all_ciphers(void) 101 { 102 } 103 LCRYPTO_ALIAS(OpenSSL_add_all_ciphers); 104 105 void 106 OpenSSL_add_all_digests(void) 107 { 108 } 109 LCRYPTO_ALIAS(OpenSSL_add_all_digests); 110 111 void 112 OPENSSL_add_all_algorithms_noconf(void) 113 { 114 } 115 LCRYPTO_ALIAS(OPENSSL_add_all_algorithms_noconf); 116 117 void 118 OPENSSL_add_all_algorithms_conf(void) 119 { 120 OPENSSL_config(NULL); 121 } 122 LCRYPTO_ALIAS(OPENSSL_add_all_algorithms_conf); 123