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 "internal/err.h"
62 #include <openssl/crypto.h>
63 #include <openssl/evp.h>
69 static void ssl_library_stop(void);
71 static CRYPTO_ONCE ssl_base = CRYPTO_ONCE_STATIC_INIT;
72 static int ssl_base_inited = 0;
73 static void ossl_init_ssl_base(void)
75 #ifdef OPENSSL_INIT_DEBUG
76 fprintf(stderr, "OPENSSL_INIT: ossl_init_ssl_base: "
77 "Adding SSL ciphers and digests\n");
79 #ifndef OPENSSL_NO_DES
80 EVP_add_cipher(EVP_des_cbc());
81 EVP_add_cipher(EVP_des_ede3_cbc());
83 #ifndef OPENSSL_NO_IDEA
84 EVP_add_cipher(EVP_idea_cbc());
86 #ifndef OPENSSL_NO_RC4
87 EVP_add_cipher(EVP_rc4());
88 # ifndef OPENSSL_NO_MD5
89 EVP_add_cipher(EVP_rc4_hmac_md5());
92 #ifndef OPENSSL_NO_RC2
93 EVP_add_cipher(EVP_rc2_cbc());
95 * Not actually used for SSL/TLS but this makes PKCS#12 work if an
96 * application only calls SSL_library_init().
98 EVP_add_cipher(EVP_rc2_40_cbc());
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());
111 #ifndef OPENSSL_NO_CAMELLIA
112 EVP_add_cipher(EVP_camellia_128_cbc());
113 EVP_add_cipher(EVP_camellia_256_cbc());
115 #if !defined(OPENSSL_NO_CHACHA) && !defined(OPENSSL_NO_POLY1305)
116 EVP_add_cipher(EVP_chacha20_poly1305());
119 #ifndef OPENSSL_NO_SEED
120 EVP_add_cipher(EVP_seed_cbc());
123 #ifndef OPENSSL_NO_MD5
124 EVP_add_digest(EVP_md5());
125 EVP_add_digest_alias(SN_md5, "ssl3-md5");
126 # ifndef OPENSSL_NO_SHA
127 EVP_add_digest(EVP_md5_sha1());
130 EVP_add_digest(EVP_sha1()); /* RSA with sha1 */
131 EVP_add_digest_alias(SN_sha1, "ssl3-sha1");
132 EVP_add_digest_alias(SN_sha1WithRSAEncryption, SN_sha1WithRSA);
133 EVP_add_digest(EVP_sha224());
134 EVP_add_digest(EVP_sha256());
135 EVP_add_digest(EVP_sha384());
136 EVP_add_digest(EVP_sha512());
137 #ifndef OPENSSL_NO_COMP
138 #ifdef OPENSSL_INIT_DEBUG
139 fprintf(stderr, "OPENSSL_INIT: ossl_init_ssl_base: "
140 "SSL_COMP_get_compression_methods()\n");
143 * This will initialise the built-in compression algorithms. The value
144 * returned is a STACK_OF(SSL_COMP), but that can be discarded safely
146 SSL_COMP_get_compression_methods();
148 /* initialize cipher/digest methods table */
151 #ifdef OPENSSL_INIT_DEBUG
152 fprintf(stderr, "OPENSSL_INIT: ossl_init_ssl_base: "
153 "SSL_add_ssl_module()\n");
155 SSL_add_ssl_module();
157 * We ignore an error return here. Not much we can do - but not that bad
158 * either. We can still safely continue.
160 OPENSSL_atexit(ssl_library_stop);
164 static CRYPTO_ONCE ssl_strings = CRYPTO_ONCE_STATIC_INIT;
165 static int ssl_strings_inited = 0;
166 static void ossl_init_load_ssl_strings(void)
169 * OPENSSL_NO_AUTOERRINIT is provided here to prevent at compile time
170 * pulling in all the error strings during static linking
172 #if !defined(OPENSSL_NO_ERR) && !defined(OPENSSL_NO_AUTOERRINIT)
173 # ifdef OPENSSL_INIT_DEBUG
174 fprintf(stderr, "OPENSSL_INIT: ossl_init_load_ssl_strings: "
175 "ERR_load_SSL_strings()\n");
177 ERR_load_SSL_strings();
179 ssl_strings_inited = 1;
182 static void ossl_init_no_load_ssl_strings(void)
184 /* Do nothing in this case */
188 static void ssl_library_stop(void)
190 /* Might be explicitly called and also by atexit */
195 if (ssl_base_inited) {
196 #ifndef OPENSSL_NO_COMP
197 #ifdef OPENSSL_INIT_DEBUG
198 fprintf(stderr, "OPENSSL_INIT: ssl_library_stop: "
199 "ssl_comp_free_compression_methods_int()\n");
201 ssl_comp_free_compression_methods_int();
205 if (ssl_strings_inited) {
206 #ifdef OPENSSL_INIT_DEBUG
207 fprintf(stderr, "OPENSSL_INIT: ssl_library_stop: "
208 "err_free_strings_int()\n");
211 * If both crypto and ssl error strings are inited we will end up
212 * calling err_free_strings_int() twice - but that's ok. The second
213 * time will be a no-op. It's easier to do that than to try and track
214 * between the two libraries whether they have both been inited.
216 err_free_strings_int();
222 * If this function is called with a non NULL settings value then it must be
223 * called prior to any threads making calls to any OpenSSL functions,
224 * i.e. passing a non-null settings value is assumed to be single-threaded.
226 int OPENSSL_init_ssl(uint64_t opts, const OPENSSL_INIT_SETTINGS *settings)
228 static int stoperrset = 0;
233 * We only ever set this once to avoid getting into an infinite
234 * loop where the error system keeps trying to init and fails so
238 SSLerr(SSL_F_OPENSSL_INIT_SSL, ERR_R_INIT_FAIL);
243 if (!OPENSSL_init_crypto(opts | OPENSSL_INIT_ADD_ALL_CIPHERS
244 | OPENSSL_INIT_ADD_ALL_DIGESTS, settings))
247 if (!CRYPTO_THREAD_run_once(&ssl_base, ossl_init_ssl_base))
250 if ((opts & OPENSSL_INIT_NO_LOAD_SSL_STRINGS)
251 && !CRYPTO_THREAD_run_once(&ssl_strings,
252 ossl_init_no_load_ssl_strings))
255 if ((opts & OPENSSL_INIT_LOAD_SSL_STRINGS)
256 && !CRYPTO_THREAD_run_once(&ssl_strings,
257 ossl_init_load_ssl_strings))