2 * Copyright 2016 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>
17 #include "internal/thread_once.h"
21 static void ssl_library_stop(void);
23 static CRYPTO_ONCE ssl_base = CRYPTO_ONCE_STATIC_INIT;
24 static int ssl_base_inited = 0;
25 DEFINE_RUN_ONCE_STATIC(ossl_init_ssl_base)
27 #ifdef OPENSSL_INIT_DEBUG
28 fprintf(stderr, "OPENSSL_INIT: ossl_init_ssl_base: "
29 "Adding SSL ciphers and digests\n");
31 #ifndef OPENSSL_NO_DES
32 EVP_add_cipher(EVP_des_cbc());
33 EVP_add_cipher(EVP_des_ede3_cbc());
35 #ifndef OPENSSL_NO_IDEA
36 EVP_add_cipher(EVP_idea_cbc());
38 #ifndef OPENSSL_NO_RC4
39 EVP_add_cipher(EVP_rc4());
40 # ifndef OPENSSL_NO_MD5
41 EVP_add_cipher(EVP_rc4_hmac_md5());
44 #ifndef OPENSSL_NO_RC2
45 EVP_add_cipher(EVP_rc2_cbc());
47 * Not actually used for SSL/TLS but this makes PKCS#12 work if an
48 * application only calls SSL_library_init().
50 EVP_add_cipher(EVP_rc2_40_cbc());
52 EVP_add_cipher(EVP_aes_128_cbc());
53 EVP_add_cipher(EVP_aes_192_cbc());
54 EVP_add_cipher(EVP_aes_256_cbc());
55 EVP_add_cipher(EVP_aes_128_gcm());
56 EVP_add_cipher(EVP_aes_256_gcm());
57 EVP_add_cipher(EVP_aes_128_ccm());
58 EVP_add_cipher(EVP_aes_256_ccm());
59 EVP_add_cipher(EVP_aes_128_cbc_hmac_sha1());
60 EVP_add_cipher(EVP_aes_256_cbc_hmac_sha1());
61 EVP_add_cipher(EVP_aes_128_cbc_hmac_sha256());
62 EVP_add_cipher(EVP_aes_256_cbc_hmac_sha256());
63 #ifndef OPENSSL_NO_CAMELLIA
64 EVP_add_cipher(EVP_camellia_128_cbc());
65 EVP_add_cipher(EVP_camellia_256_cbc());
67 #if !defined(OPENSSL_NO_CHACHA) && !defined(OPENSSL_NO_POLY1305)
68 EVP_add_cipher(EVP_chacha20_poly1305());
71 #ifndef OPENSSL_NO_SEED
72 EVP_add_cipher(EVP_seed_cbc());
75 #ifndef OPENSSL_NO_MD5
76 EVP_add_digest(EVP_md5());
77 EVP_add_digest_alias(SN_md5, "ssl3-md5");
78 EVP_add_digest(EVP_md5_sha1());
80 EVP_add_digest(EVP_sha1()); /* RSA with sha1 */
81 EVP_add_digest_alias(SN_sha1, "ssl3-sha1");
82 EVP_add_digest_alias(SN_sha1WithRSAEncryption, SN_sha1WithRSA);
83 EVP_add_digest(EVP_sha224());
84 EVP_add_digest(EVP_sha256());
85 EVP_add_digest(EVP_sha384());
86 EVP_add_digest(EVP_sha512());
87 #ifndef OPENSSL_NO_COMP
88 # ifdef OPENSSL_INIT_DEBUG
89 fprintf(stderr, "OPENSSL_INIT: ossl_init_ssl_base: "
90 "SSL_COMP_get_compression_methods()\n");
93 * This will initialise the built-in compression algorithms. The value
94 * returned is a STACK_OF(SSL_COMP), but that can be discarded safely
96 SSL_COMP_get_compression_methods();
98 /* initialize cipher/digest methods table */
101 #ifdef OPENSSL_INIT_DEBUG
102 fprintf(stderr, "OPENSSL_INIT: ossl_init_ssl_base: "
103 "SSL_add_ssl_module()\n");
105 SSL_add_ssl_module();
107 * We ignore an error return here. Not much we can do - but not that bad
108 * either. We can still safely continue.
110 OPENSSL_atexit(ssl_library_stop);
115 static CRYPTO_ONCE ssl_strings = CRYPTO_ONCE_STATIC_INIT;
116 static int ssl_strings_inited = 0;
117 DEFINE_RUN_ONCE_STATIC(ossl_init_load_ssl_strings)
120 * OPENSSL_NO_AUTOERRINIT is provided here to prevent at compile time
121 * pulling in all the error strings during static linking
123 #if !defined(OPENSSL_NO_ERR) && !defined(OPENSSL_NO_AUTOERRINIT)
124 # ifdef OPENSSL_INIT_DEBUG
125 fprintf(stderr, "OPENSSL_INIT: ossl_init_load_ssl_strings: "
126 "ERR_load_SSL_strings()\n");
128 ERR_load_SSL_strings();
130 ssl_strings_inited = 1;
134 DEFINE_RUN_ONCE_STATIC(ossl_init_no_load_ssl_strings)
136 /* Do nothing in this case */
140 static void ssl_library_stop(void)
142 /* Might be explicitly called and also by atexit */
147 if (ssl_base_inited) {
148 #ifndef OPENSSL_NO_COMP
149 # ifdef OPENSSL_INIT_DEBUG
150 fprintf(stderr, "OPENSSL_INIT: ssl_library_stop: "
151 "ssl_comp_free_compression_methods_int()\n");
153 ssl_comp_free_compression_methods_int();
157 if (ssl_strings_inited) {
158 #ifdef OPENSSL_INIT_DEBUG
159 fprintf(stderr, "OPENSSL_INIT: ssl_library_stop: "
160 "err_free_strings_int()\n");
163 * If both crypto and ssl error strings are inited we will end up
164 * calling err_free_strings_int() twice - but that's ok. The second
165 * time will be a no-op. It's easier to do that than to try and track
166 * between the two libraries whether they have both been inited.
168 err_free_strings_int();
173 * If this function is called with a non NULL settings value then it must be
174 * called prior to any threads making calls to any OpenSSL functions,
175 * i.e. passing a non-null settings value is assumed to be single-threaded.
177 int OPENSSL_init_ssl(uint64_t opts, const OPENSSL_INIT_SETTINGS * settings)
179 static int stoperrset = 0;
184 * We only ever set this once to avoid getting into an infinite
185 * loop where the error system keeps trying to init and fails so
189 SSLerr(SSL_F_OPENSSL_INIT_SSL, ERR_R_INIT_FAIL);
194 if (!OPENSSL_init_crypto(opts | OPENSSL_INIT_ADD_ALL_CIPHERS
195 | OPENSSL_INIT_ADD_ALL_DIGESTS, settings))
198 if (!RUN_ONCE(&ssl_base, ossl_init_ssl_base))
201 if ((opts & OPENSSL_INIT_NO_LOAD_SSL_STRINGS)
202 && !RUN_ONCE(&ssl_strings, ossl_init_no_load_ssl_strings))
205 if ((opts & OPENSSL_INIT_LOAD_SSL_STRINGS)
206 && !RUN_ONCE(&ssl_strings, ossl_init_load_ssl_strings))