2 * Written by Matt Caswell for the OpenSSL project.
4 /* ====================================================================
5 * Copyright (c) 2016 The OpenSSL Project. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
19 * 3. All advertising materials mentioning features or use of this
20 * software must display the following acknowledgment:
21 * "This product includes software developed by the OpenSSL Project
22 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
24 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
25 * endorse or promote products derived from this software without
26 * prior written permission. For written permission, please contact
27 * openssl-core@openssl.org.
29 * 5. Products derived from this software may not be called "OpenSSL"
30 * nor may "OpenSSL" appear in their names without prior written
31 * permission of the OpenSSL Project.
33 * 6. Redistributions of any form whatsoever must retain the following
35 * "This product includes software developed by the OpenSSL Project
36 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
38 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
39 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
40 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
41 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
42 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
43 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
44 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
45 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
46 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
47 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
48 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
49 * OF THE POSSIBILITY OF SUCH DAMAGE.
50 * ====================================================================
52 * This product includes cryptographic software written by Eric Young
53 * (eay@cryptsoft.com). This product includes software written by Tim
54 * Hudson (tjh@cryptsoft.com).
60 #include <internal/threads.h>
61 #include <openssl/crypto.h>
62 #include <openssl/evp.h>
68 static void ssl_library_stop(void);
70 static CRYPTO_ONCE ssl_base = CRYPTO_ONCE_STATIC_INIT;
71 static int ssl_base_inited = 0;
72 static void ossl_init_ssl_base(void)
74 #ifdef OPENSSL_INIT_DEBUG
75 fprintf(stderr, "OPENSSL_INIT: ossl_init_ssl_base: "
76 "Adding SSL ciphers and digests\n");
78 #ifndef OPENSSL_NO_DES
79 EVP_add_cipher(EVP_des_cbc());
80 EVP_add_cipher(EVP_des_ede3_cbc());
82 #ifndef OPENSSL_NO_IDEA
83 EVP_add_cipher(EVP_idea_cbc());
85 #ifndef OPENSSL_NO_RC4
86 EVP_add_cipher(EVP_rc4());
87 # ifndef OPENSSL_NO_MD5
88 EVP_add_cipher(EVP_rc4_hmac_md5());
91 #ifndef OPENSSL_NO_RC2
92 EVP_add_cipher(EVP_rc2_cbc());
94 * Not actually used for SSL/TLS but this makes PKCS#12 work if an
95 * application only calls SSL_library_init().
97 EVP_add_cipher(EVP_rc2_40_cbc());
99 #ifndef OPENSSL_NO_AES
100 EVP_add_cipher(EVP_aes_128_cbc());
101 EVP_add_cipher(EVP_aes_192_cbc());
102 EVP_add_cipher(EVP_aes_256_cbc());
103 EVP_add_cipher(EVP_aes_128_gcm());
104 EVP_add_cipher(EVP_aes_256_gcm());
105 EVP_add_cipher(EVP_aes_128_ccm());
106 EVP_add_cipher(EVP_aes_256_ccm());
107 EVP_add_cipher(EVP_aes_128_cbc_hmac_sha1());
108 EVP_add_cipher(EVP_aes_256_cbc_hmac_sha1());
109 EVP_add_cipher(EVP_aes_128_cbc_hmac_sha256());
110 EVP_add_cipher(EVP_aes_256_cbc_hmac_sha256());
112 #ifndef OPENSSL_NO_CAMELLIA
113 EVP_add_cipher(EVP_camellia_128_cbc());
114 EVP_add_cipher(EVP_camellia_256_cbc());
116 #if !defined(OPENSSL_NO_CHACHA) && !defined(OPENSSL_NO_POLY1305)
117 EVP_add_cipher(EVP_chacha20_poly1305());
120 #ifndef OPENSSL_NO_SEED
121 EVP_add_cipher(EVP_seed_cbc());
124 #ifndef OPENSSL_NO_MD5
125 EVP_add_digest(EVP_md5());
126 EVP_add_digest_alias(SN_md5, "ssl3-md5");
127 # ifndef OPENSSL_NO_SHA
128 EVP_add_digest(EVP_md5_sha1());
131 EVP_add_digest(EVP_sha1()); /* RSA with sha1 */
132 EVP_add_digest_alias(SN_sha1, "ssl3-sha1");
133 EVP_add_digest_alias(SN_sha1WithRSAEncryption, SN_sha1WithRSA);
134 EVP_add_digest(EVP_sha224());
135 EVP_add_digest(EVP_sha256());
136 EVP_add_digest(EVP_sha384());
137 EVP_add_digest(EVP_sha512());
138 #ifndef OPENSSL_NO_COMP
139 #ifdef OPENSSL_INIT_DEBUG
140 fprintf(stderr, "OPENSSL_INIT: ossl_init_ssl_base: "
141 "SSL_COMP_get_compression_methods()\n");
144 * This will initialise the built-in compression algorithms. The value
145 * returned is a STACK_OF(SSL_COMP), but that can be discarded safely
147 SSL_COMP_get_compression_methods();
149 /* initialize cipher/digest methods table */
152 #ifdef OPENSSL_INIT_DEBUG
153 fprintf(stderr, "OPENSSL_INIT: ossl_init_ssl_base: "
154 "SSL_add_ssl_module()\n");
156 SSL_add_ssl_module();
158 * We ignore an error return here. Not much we can do - but not that bad
159 * either. We can still safely continue.
161 OPENSSL_atexit(ssl_library_stop);
165 static CRYPTO_ONCE ssl_strings = CRYPTO_ONCE_STATIC_INIT;
166 static int ssl_strings_inited = 0;
167 static void ossl_init_load_ssl_strings(void)
170 * OPENSSL_NO_AUTOERRINIT is provided here to prevent at compile time
171 * pulling in all the error strings during static linking
173 #if !defined(OPENSSL_NO_ERR) && !defined(OPENSSL_NO_AUTOERRINIT)
174 # ifdef OPENSSL_INIT_DEBUG
175 fprintf(stderr, "OPENSSL_INIT: ossl_init_load_ssl_strings: "
176 "ERR_load_SSL_strings()\n");
178 ERR_load_SSL_strings();
180 ssl_strings_inited = 1;
183 static void ossl_init_no_load_ssl_strings(void)
185 /* Do nothing in this case */
189 static void ssl_library_stop(void)
191 /* Might be explicitly called and also by atexit */
196 if (ssl_base_inited) {
197 #ifndef OPENSSL_NO_COMP
198 #ifdef OPENSSL_INIT_DEBUG
199 fprintf(stderr, "OPENSSL_INIT: ssl_library_stop: "
200 "SSL_COMP_free_compression_methods()\n");
202 SSL_COMP_free_compression_methods();
206 if (ssl_strings_inited) {
207 #ifdef OPENSSL_INIT_DEBUG
208 fprintf(stderr, "OPENSSL_INIT: ssl_library_stop: "
209 "ERR_free_strings()\n");
212 * If both crypto and ssl error strings are inited we will end up
213 * calling ERR_free_strings() twice - but that's ok. The second time
214 * will be a no-op. It's easier to do that than to try and track
215 * between the two libraries whether they have both been inited.
223 * If this function is called with a non NULL settings value then it must be
224 * called prior to any threads making calls to any OpenSSL functions,
225 * i.e. passing a non-null settings value is assumed to be single-threaded.
227 int OPENSSL_init_ssl(uint64_t opts, const OPENSSL_INIT_SETTINGS *settings)
229 static int stoperrset = 0;
234 * We only ever set this once to avoid getting into an infinite
235 * loop where the error system keeps trying to init and fails so
239 SSLerr(SSL_F_OPENSSL_INIT_SSL, ERR_R_INIT_FAIL);
244 if (!OPENSSL_init_crypto(opts | OPENSSL_INIT_ADD_ALL_CIPHERS
245 | OPENSSL_INIT_ADD_ALL_DIGESTS, settings))
248 if (!CRYPTO_THREAD_run_once(&ssl_base, ossl_init_ssl_base))
251 if ((opts & OPENSSL_INIT_NO_LOAD_SSL_STRINGS)
252 && !CRYPTO_THREAD_run_once(&ssl_strings,
253 ossl_init_no_load_ssl_strings))
256 if ((opts & OPENSSL_INIT_LOAD_SSL_STRINGS)
257 && !CRYPTO_THREAD_run_once(&ssl_strings,
258 ossl_init_load_ssl_strings))