2 * Copyright 2016-2019 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
12 #include "internal/err.h"
13 #include <openssl/crypto.h>
14 #include <openssl/evp.h>
16 #include "internal/thread_once.h"
20 static void ssl_library_stop(void);
22 static CRYPTO_ONCE ssl_base = CRYPTO_ONCE_STATIC_INIT;
23 static int ssl_base_inited = 0;
24 DEFINE_RUN_ONCE_STATIC(ossl_init_ssl_base)
26 #ifdef OPENSSL_INIT_DEBUG
27 fprintf(stderr, "OPENSSL_INIT: ossl_init_ssl_base: "
28 "Adding SSL ciphers and digests\n");
30 #ifndef OPENSSL_NO_DES
31 EVP_add_cipher(EVP_des_cbc());
32 EVP_add_cipher(EVP_des_ede3_cbc());
34 #ifndef OPENSSL_NO_IDEA
35 EVP_add_cipher(EVP_idea_cbc());
37 #ifndef OPENSSL_NO_RC4
38 EVP_add_cipher(EVP_rc4());
39 # ifndef OPENSSL_NO_MD5
40 EVP_add_cipher(EVP_rc4_hmac_md5());
43 #ifndef OPENSSL_NO_RC2
44 EVP_add_cipher(EVP_rc2_cbc());
46 * Not actually used for SSL/TLS but this makes PKCS#12 work if an
47 * application only calls SSL_library_init().
49 EVP_add_cipher(EVP_rc2_40_cbc());
51 EVP_add_cipher(EVP_aes_128_cbc());
52 EVP_add_cipher(EVP_aes_192_cbc());
53 EVP_add_cipher(EVP_aes_256_cbc());
54 EVP_add_cipher(EVP_aes_128_gcm());
55 EVP_add_cipher(EVP_aes_256_gcm());
56 EVP_add_cipher(EVP_aes_128_ccm());
57 EVP_add_cipher(EVP_aes_256_ccm());
58 EVP_add_cipher(EVP_aes_128_cbc_hmac_sha1());
59 EVP_add_cipher(EVP_aes_256_cbc_hmac_sha1());
60 EVP_add_cipher(EVP_aes_128_cbc_hmac_sha256());
61 EVP_add_cipher(EVP_aes_256_cbc_hmac_sha256());
62 #ifndef OPENSSL_NO_ARIA
63 EVP_add_cipher(EVP_aria_128_gcm());
64 EVP_add_cipher(EVP_aria_256_gcm());
66 #ifndef OPENSSL_NO_CAMELLIA
67 EVP_add_cipher(EVP_camellia_128_cbc());
68 EVP_add_cipher(EVP_camellia_256_cbc());
70 #if !defined(OPENSSL_NO_CHACHA) && !defined(OPENSSL_NO_POLY1305)
71 EVP_add_cipher(EVP_chacha20_poly1305());
74 #ifndef OPENSSL_NO_SEED
75 EVP_add_cipher(EVP_seed_cbc());
78 #ifndef OPENSSL_NO_MD5
79 EVP_add_digest(EVP_md5());
80 EVP_add_digest_alias(SN_md5, "ssl3-md5");
81 EVP_add_digest(EVP_md5_sha1());
83 EVP_add_digest(EVP_sha1()); /* RSA with sha1 */
84 EVP_add_digest_alias(SN_sha1, "ssl3-sha1");
85 EVP_add_digest_alias(SN_sha1WithRSAEncryption, SN_sha1WithRSA);
86 EVP_add_digest(EVP_sha224());
87 EVP_add_digest(EVP_sha256());
88 EVP_add_digest(EVP_sha384());
89 EVP_add_digest(EVP_sha512());
90 #ifndef OPENSSL_NO_COMP
91 # ifdef OPENSSL_INIT_DEBUG
92 fprintf(stderr, "OPENSSL_INIT: ossl_init_ssl_base: "
93 "SSL_COMP_get_compression_methods()\n");
96 * This will initialise the built-in compression algorithms. The value
97 * returned is a STACK_OF(SSL_COMP), but that can be discarded safely
99 SSL_COMP_get_compression_methods();
101 /* initialize cipher/digest methods table */
102 if (!ssl_load_ciphers())
105 #ifdef OPENSSL_INIT_DEBUG
106 fprintf(stderr, "OPENSSL_INIT: ossl_init_ssl_base: "
107 "SSL_add_ssl_module()\n");
110 * We ignore an error return here. Not much we can do - but not that bad
111 * either. We can still safely continue.
113 OPENSSL_atexit(ssl_library_stop);
118 static CRYPTO_ONCE ssl_strings = CRYPTO_ONCE_STATIC_INIT;
119 static int ssl_strings_inited = 0;
120 DEFINE_RUN_ONCE_STATIC(ossl_init_load_ssl_strings)
123 * OPENSSL_NO_AUTOERRINIT is provided here to prevent at compile time
124 * pulling in all the error strings during static linking
126 #if !defined(OPENSSL_NO_ERR) && !defined(OPENSSL_NO_AUTOERRINIT)
127 # ifdef OPENSSL_INIT_DEBUG
128 fprintf(stderr, "OPENSSL_INIT: ossl_init_load_ssl_strings: "
129 "ERR_load_SSL_strings()\n");
131 ERR_load_SSL_strings();
132 ssl_strings_inited = 1;
137 DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_load_ssl_strings,
138 ossl_init_load_ssl_strings)
140 /* Do nothing in this case */
144 static void ssl_library_stop(void)
146 /* Might be explicitly called and also by atexit */
151 if (ssl_base_inited) {
152 #ifndef OPENSSL_NO_COMP
153 # ifdef OPENSSL_INIT_DEBUG
154 fprintf(stderr, "OPENSSL_INIT: ssl_library_stop: "
155 "ssl_comp_free_compression_methods_int()\n");
157 ssl_comp_free_compression_methods_int();
161 if (ssl_strings_inited) {
162 #ifdef OPENSSL_INIT_DEBUG
163 fprintf(stderr, "OPENSSL_INIT: ssl_library_stop: "
164 "err_free_strings_int()\n");
167 * If both crypto and ssl error strings are inited we will end up
168 * calling err_free_strings_int() twice - but that's ok. The second
169 * time will be a no-op. It's easier to do that than to try and track
170 * between the two libraries whether they have both been inited.
172 err_free_strings_int();
177 * If this function is called with a non NULL settings value then it must be
178 * called prior to any threads making calls to any OpenSSL functions,
179 * i.e. passing a non-null settings value is assumed to be single-threaded.
181 int OPENSSL_init_ssl(uint64_t opts, const OPENSSL_INIT_SETTINGS * settings)
183 static int stoperrset = 0;
188 * We only ever set this once to avoid getting into an infinite
189 * loop where the error system keeps trying to init and fails so
193 SSLerr(SSL_F_OPENSSL_INIT_SSL, ERR_R_INIT_FAIL);
198 opts |= OPENSSL_INIT_ADD_ALL_CIPHERS
199 | OPENSSL_INIT_ADD_ALL_DIGESTS;
200 #ifndef OPENSSL_NO_AUTOLOAD_CONFIG
201 if ((opts & OPENSSL_INIT_NO_LOAD_CONFIG) == 0)
202 opts |= OPENSSL_INIT_LOAD_CONFIG;
205 if (!OPENSSL_init_crypto(opts, settings))
208 if (!RUN_ONCE(&ssl_base, ossl_init_ssl_base))
211 if ((opts & OPENSSL_INIT_NO_LOAD_SSL_STRINGS)
212 && !RUN_ONCE_ALT(&ssl_strings, ossl_init_no_load_ssl_strings,
213 ossl_init_load_ssl_strings))
216 if ((opts & OPENSSL_INIT_LOAD_SSL_STRINGS)
217 && !RUN_ONCE(&ssl_strings, ossl_init_load_ssl_strings))