1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
/*
* Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include "e_os.h"
#include "internal/err.h"
#include <openssl/crypto.h>
#include <openssl/evp.h>
#include <assert.h>
#include "ssl_locl.h"
#include "internal/thread_once.h"
static int stopped;
static void ssl_library_stop(void);
static CRYPTO_ONCE ssl_base = CRYPTO_ONCE_STATIC_INIT;
static int ssl_base_inited = 0;
DEFINE_RUN_ONCE_STATIC(ossl_init_ssl_base)
{
#ifdef OPENSSL_INIT_DEBUG
fprintf(stderr, "OPENSSL_INIT: ossl_init_ssl_base: "
"Adding SSL ciphers and digests\n");
#endif
#ifndef OPENSSL_NO_DES
EVP_add_cipher(EVP_des_cbc());
EVP_add_cipher(EVP_des_ede3_cbc());
#endif
#ifndef OPENSSL_NO_IDEA
EVP_add_cipher(EVP_idea_cbc());
#endif
#ifndef OPENSSL_NO_RC4
EVP_add_cipher(EVP_rc4());
# ifndef OPENSSL_NO_MD5
EVP_add_cipher(EVP_rc4_hmac_md5());
# endif
#endif
#ifndef OPENSSL_NO_RC2
EVP_add_cipher(EVP_rc2_cbc());
/*
* Not actually used for SSL/TLS but this makes PKCS#12 work if an
* application only calls SSL_library_init().
*/
EVP_add_cipher(EVP_rc2_40_cbc());
#endif
EVP_add_cipher(EVP_aes_128_cbc());
EVP_add_cipher(EVP_aes_192_cbc());
EVP_add_cipher(EVP_aes_256_cbc());
EVP_add_cipher(EVP_aes_128_gcm());
EVP_add_cipher(EVP_aes_256_gcm());
EVP_add_cipher(EVP_aes_128_ccm());
EVP_add_cipher(EVP_aes_256_ccm());
EVP_add_cipher(EVP_aes_128_cbc_hmac_sha1());
EVP_add_cipher(EVP_aes_256_cbc_hmac_sha1());
EVP_add_cipher(EVP_aes_128_cbc_hmac_sha256());
EVP_add_cipher(EVP_aes_256_cbc_hmac_sha256());
#ifndef OPENSSL_NO_CAMELLIA
EVP_add_cipher(EVP_camellia_128_cbc());
EVP_add_cipher(EVP_camellia_256_cbc());
#endif
#if !defined(OPENSSL_NO_CHACHA) && !defined(OPENSSL_NO_POLY1305)
EVP_add_cipher(EVP_chacha20_poly1305());
#endif
#ifndef OPENSSL_NO_SEED
EVP_add_cipher(EVP_seed_cbc());
#endif
#ifndef OPENSSL_NO_MD5
EVP_add_digest(EVP_md5());
EVP_add_digest_alias(SN_md5, "ssl3-md5");
EVP_add_digest(EVP_md5_sha1());
#endif
EVP_add_digest(EVP_sha1()); /* RSA with sha1 */
EVP_add_digest_alias(SN_sha1, "ssl3-sha1");
EVP_add_digest_alias(SN_sha1WithRSAEncryption, SN_sha1WithRSA);
EVP_add_digest(EVP_sha224());
EVP_add_digest(EVP_sha256());
EVP_add_digest(EVP_sha384());
EVP_add_digest(EVP_sha512());
#ifndef OPENSSL_NO_COMP
# ifdef OPENSSL_INIT_DEBUG
fprintf(stderr, "OPENSSL_INIT: ossl_init_ssl_base: "
"SSL_COMP_get_compression_methods()\n");
# endif
/*
* This will initialise the built-in compression algorithms. The value
* returned is a STACK_OF(SSL_COMP), but that can be discarded safely
*/
SSL_COMP_get_compression_methods();
#endif
/* initialize cipher/digest methods table */
if (!ssl_load_ciphers())
return 0;
#ifdef OPENSSL_INIT_DEBUG
fprintf(stderr, "OPENSSL_INIT: ossl_init_ssl_base: "
"SSL_add_ssl_module()\n");
#endif
SSL_add_ssl_module();
/*
* We ignore an error return here. Not much we can do - but not that bad
* either. We can still safely continue.
*/
OPENSSL_atexit(ssl_library_stop);
ssl_base_inited = 1;
return 1;
}
static CRYPTO_ONCE ssl_strings = CRYPTO_ONCE_STATIC_INIT;
static int ssl_strings_inited = 0;
DEFINE_RUN_ONCE_STATIC(ossl_init_load_ssl_strings)
{
/*
* OPENSSL_NO_AUTOERRINIT is provided here to prevent at compile time
* pulling in all the error strings during static linking
*/
#if !defined(OPENSSL_NO_ERR) && !defined(OPENSSL_NO_AUTOERRINIT)
# ifdef OPENSSL_INIT_DEBUG
fprintf(stderr, "OPENSSL_INIT: ossl_init_load_ssl_strings: "
"ERR_load_SSL_strings()\n");
# endif
ERR_load_SSL_strings();
#endif
ssl_strings_inited = 1;
return 1;
}
DEFINE_RUN_ONCE_STATIC(ossl_init_no_load_ssl_strings)
{
/* Do nothing in this case */
return 1;
}
static void ssl_library_stop(void)
{
/* Might be explicitly called and also by atexit */
if (stopped)
return;
stopped = 1;
if (ssl_base_inited) {
#ifndef OPENSSL_NO_COMP
# ifdef OPENSSL_INIT_DEBUG
fprintf(stderr, "OPENSSL_INIT: ssl_library_stop: "
"ssl_comp_free_compression_methods_int()\n");
# endif
ssl_comp_free_compression_methods_int();
#endif
}
if (ssl_strings_inited) {
#ifdef OPENSSL_INIT_DEBUG
fprintf(stderr, "OPENSSL_INIT: ssl_library_stop: "
"err_free_strings_int()\n");
#endif
/*
* If both crypto and ssl error strings are inited we will end up
* calling err_free_strings_int() twice - but that's ok. The second
* time will be a no-op. It's easier to do that than to try and track
* between the two libraries whether they have both been inited.
*/
err_free_strings_int();
}
}
/*
* If this function is called with a non NULL settings value then it must be
* called prior to any threads making calls to any OpenSSL functions,
* i.e. passing a non-null settings value is assumed to be single-threaded.
*/
int OPENSSL_init_ssl(uint64_t opts, const OPENSSL_INIT_SETTINGS * settings)
{
static int stoperrset = 0;
if (stopped) {
if (!stoperrset) {
/*
* We only ever set this once to avoid getting into an infinite
* loop where the error system keeps trying to init and fails so
* sets an error etc
*/
stoperrset = 1;
SSLerr(SSL_F_OPENSSL_INIT_SSL, ERR_R_INIT_FAIL);
}
return 0;
}
if (!OPENSSL_init_crypto(opts | OPENSSL_INIT_ADD_ALL_CIPHERS
| OPENSSL_INIT_ADD_ALL_DIGESTS, settings))
return 0;
if (!RUN_ONCE(&ssl_base, ossl_init_ssl_base))
return 0;
if ((opts & OPENSSL_INIT_NO_LOAD_SSL_STRINGS)
&& !RUN_ONCE(&ssl_strings, ossl_init_no_load_ssl_strings))
return 0;
if ((opts & OPENSSL_INIT_LOAD_SSL_STRINGS)
&& !RUN_ONCE(&ssl_strings, ossl_init_load_ssl_strings))
return 0;
return 1;
}
|
