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
|
/*
* Copyright 2016-2022 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (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 <openssl/trace.h>
#include "ssl_local.h"
#include "sslerr.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)
{
#ifndef OPENSSL_NO_COMP
OSSL_TRACE(INIT, "ossl_init_ssl_base: "
"SSL_COMP_get_compression_methods()\n");
/*
* 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
ssl_sort_cipher_list();
OSSL_TRACE(INIT,"ossl_init_ssl_base: SSL_add_ssl_module()\n");
/*
* 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;
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)
OSSL_TRACE(INIT, "ossl_init_load_ssl_strings: ossl_err_load_SSL_strings()\n");
ossl_err_load_SSL_strings();
#endif
return 1;
}
DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_load_ssl_strings,
ossl_init_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
OSSL_TRACE(INIT, "ssl_library_stop: "
"ssl_comp_free_compression_methods_int()\n");
ssl_comp_free_compression_methods_int();
#endif
}
}
/*
* 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;
ERR_raise(ERR_LIB_SSL, ERR_R_INIT_FAIL);
}
return 0;
}
opts |= OPENSSL_INIT_ADD_ALL_CIPHERS
| OPENSSL_INIT_ADD_ALL_DIGESTS;
#ifndef OPENSSL_NO_AUTOLOAD_CONFIG
if ((opts & OPENSSL_INIT_NO_LOAD_CONFIG) == 0)
opts |= OPENSSL_INIT_LOAD_CONFIG;
#endif
if (!OPENSSL_init_crypto(opts, settings))
return 0;
if (!RUN_ONCE(&ssl_base, ossl_init_ssl_base))
return 0;
if ((opts & OPENSSL_INIT_NO_LOAD_SSL_STRINGS)
&& !RUN_ONCE_ALT(&ssl_strings, ossl_init_no_load_ssl_strings,
ossl_init_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;
}
|
