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
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
|
/*
* Copyright 2019-2023 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 <openssl/crypto.h>
#include "crypto/rand.h"
#include "crypto/dso_conf.h"
#include "internal/thread_once.h"
#include "internal/cryptlib.h"
#include "internal/e_os.h"
#include "buildinf.h"
#ifndef OPENSSL_NO_JITTER
# include <stdio.h>
# include <jitterentropy.h>
#endif
#if defined(__arm__) || defined(__arm) || defined(__aarch64__)
# include "arm_arch.h"
# define CPU_INFO_STR_LEN 128
#elif defined(__s390__) || defined(__s390x__)
# include "s390x_arch.h"
# define CPU_INFO_STR_LEN 2048
#elif defined(__riscv)
# include "crypto/riscv_arch.h"
# define CPU_INFO_STR_LEN 2048
#else
# define CPU_INFO_STR_LEN 128
#endif
/* extern declaration to avoid warning */
extern char ossl_cpu_info_str[];
static char *seed_sources = NULL;
char ossl_cpu_info_str[CPU_INFO_STR_LEN] = "";
#define CPUINFO_PREFIX "CPUINFO: "
static CRYPTO_ONCE init_info = CRYPTO_ONCE_STATIC_INIT;
DEFINE_RUN_ONCE_STATIC(init_info_strings)
{
#if defined(OPENSSL_CPUID_OBJ)
# if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \
defined(__x86_64) || defined(__x86_64__) || \
defined(_M_AMD64) || defined(_M_X64)
const char *env;
BIO_snprintf(ossl_cpu_info_str, sizeof(ossl_cpu_info_str),
CPUINFO_PREFIX "OPENSSL_ia32cap=0x%llx:0x%llx",
(unsigned long long)OPENSSL_ia32cap_P[0] |
(unsigned long long)OPENSSL_ia32cap_P[1] << 32,
(unsigned long long)OPENSSL_ia32cap_P[2] |
(unsigned long long)OPENSSL_ia32cap_P[3] << 32);
if ((env = getenv("OPENSSL_ia32cap")) != NULL)
BIO_snprintf(ossl_cpu_info_str + strlen(ossl_cpu_info_str),
sizeof(ossl_cpu_info_str) - strlen(ossl_cpu_info_str),
" env:%s", env);
# elif defined(__arm__) || defined(__arm) || defined(__aarch64__)
const char *env;
BIO_snprintf(ossl_cpu_info_str, sizeof(ossl_cpu_info_str),
CPUINFO_PREFIX "OPENSSL_armcap=0x%x", OPENSSL_armcap_P);
if ((env = getenv("OPENSSL_armcap")) != NULL)
BIO_snprintf(ossl_cpu_info_str + strlen(ossl_cpu_info_str),
sizeof(ossl_cpu_info_str) - strlen(ossl_cpu_info_str),
" env:%s", env);
# elif defined(__s390__) || defined(__s390x__)
const char *env;
BIO_snprintf(ossl_cpu_info_str, sizeof(ossl_cpu_info_str),
CPUINFO_PREFIX "OPENSSL_s390xcap="
"stfle:0x%llx:0x%llx:0x%llx:0x%llx:"
"kimd:0x%llx:0x%llx:"
"klmd:0x%llx:0x%llx:"
"km:0x%llx:0x%llx:"
"kmc:0x%llx:0x%llx:"
"kmac:0x%llx:0x%llx:"
"kmctr:0x%llx:0x%llx:"
"kmo:0x%llx:0x%llx:"
"kmf:0x%llx:0x%llx:"
"prno:0x%llx:0x%llx:"
"kma:0x%llx:0x%llx:"
"pcc:0x%llx:0x%llx:"
"kdsa:0x%llx:0x%llx",
OPENSSL_s390xcap_P.stfle[0], OPENSSL_s390xcap_P.stfle[1],
OPENSSL_s390xcap_P.stfle[2], OPENSSL_s390xcap_P.stfle[3],
OPENSSL_s390xcap_P.kimd[0], OPENSSL_s390xcap_P.kimd[1],
OPENSSL_s390xcap_P.klmd[0], OPENSSL_s390xcap_P.klmd[1],
OPENSSL_s390xcap_P.km[0], OPENSSL_s390xcap_P.km[1],
OPENSSL_s390xcap_P.kmc[0], OPENSSL_s390xcap_P.kmc[1],
OPENSSL_s390xcap_P.kmac[0], OPENSSL_s390xcap_P.kmac[1],
OPENSSL_s390xcap_P.kmctr[0], OPENSSL_s390xcap_P.kmctr[1],
OPENSSL_s390xcap_P.kmo[0], OPENSSL_s390xcap_P.kmo[1],
OPENSSL_s390xcap_P.kmf[0], OPENSSL_s390xcap_P.kmf[1],
OPENSSL_s390xcap_P.prno[0], OPENSSL_s390xcap_P.prno[1],
OPENSSL_s390xcap_P.kma[0], OPENSSL_s390xcap_P.kma[1],
OPENSSL_s390xcap_P.pcc[0], OPENSSL_s390xcap_P.pcc[1],
OPENSSL_s390xcap_P.kdsa[0], OPENSSL_s390xcap_P.kdsa[1]);
if ((env = getenv("OPENSSL_s390xcap")) != NULL)
BIO_snprintf(ossl_cpu_info_str + strlen(ossl_cpu_info_str),
sizeof(ossl_cpu_info_str) - strlen(ossl_cpu_info_str),
" env:%s", env);
# elif defined(__riscv)
const char *env;
char sep = '=';
BIO_snprintf(ossl_cpu_info_str, sizeof(ossl_cpu_info_str),
CPUINFO_PREFIX "OPENSSL_riscvcap");
for (size_t i = 0; i < kRISCVNumCaps; ++i) {
if (OPENSSL_riscvcap_P[RISCV_capabilities[i].index]
& (1 << RISCV_capabilities[i].bit_offset)) {
/* Match, display the name */
BIO_snprintf(ossl_cpu_info_str + strlen(ossl_cpu_info_str),
sizeof(ossl_cpu_info_str) - strlen(ossl_cpu_info_str),
"%c%s", sep, RISCV_capabilities[i].name);
/* Only the first sep is '=' */
sep = '_';
}
}
/* If no capability is found, add back the = */
if (sep == '=') {
BIO_snprintf(ossl_cpu_info_str + strlen(ossl_cpu_info_str),
sizeof(ossl_cpu_info_str) - strlen(ossl_cpu_info_str),
"%c", sep);
}
if ((env = getenv("OPENSSL_riscvcap")) != NULL)
BIO_snprintf(ossl_cpu_info_str + strlen(ossl_cpu_info_str),
sizeof(ossl_cpu_info_str) - strlen(ossl_cpu_info_str),
" env:%s", env);
# endif
#endif
{
static char seeds[512] = "";
#define add_seeds_string(str) \
do { \
if (seeds[0] != '\0') \
OPENSSL_strlcat(seeds, " ", sizeof(seeds)); \
OPENSSL_strlcat(seeds, str, sizeof(seeds)); \
} while (0)
#define add_seeds_stringlist(label, strlist) \
do { \
add_seeds_string(label "("); \
{ \
const char *dev[] = { strlist, NULL }; \
const char **p; \
int first = 1; \
\
for (p = dev; *p != NULL; p++) { \
if (!first) \
OPENSSL_strlcat(seeds, " ", sizeof(seeds)); \
first = 0; \
OPENSSL_strlcat(seeds, *p, sizeof(seeds)); \
} \
} \
OPENSSL_strlcat(seeds, ")", sizeof(seeds)); \
} while (0)
#ifdef OPENSSL_RAND_SEED_NONE
add_seeds_string("none");
#endif
#ifdef OPENSSL_RAND_SEED_RDTSC
add_seeds_string("rdtsc");
#endif
#ifdef OPENSSL_RAND_SEED_RDCPU
# ifdef __aarch64__
add_seeds_string("rndr ( rndrrs rndr )");
# else
add_seeds_string("rdrand ( rdseed rdrand )");
# endif
#endif
#ifdef OPENSSL_RAND_SEED_GETRANDOM
add_seeds_string("getrandom-syscall");
#endif
#ifdef OPENSSL_RAND_SEED_DEVRANDOM
add_seeds_stringlist("random-device", DEVRANDOM);
#endif
#ifdef OPENSSL_RAND_SEED_EGD
add_seeds_stringlist("EGD", DEVRANDOM_EGD);
#endif
#ifdef OPENSSL_RAND_SEED_OS
add_seeds_string("os-specific");
#endif
#ifndef OPENSSL_NO_JITTER
{
char jent_version_string[32];
sprintf(jent_version_string, "JITTER (%d)", jent_version());
add_seeds_string(jent_version_string);
}
#endif
seed_sources = seeds;
}
return 1;
}
const char *OPENSSL_info(int t)
{
/*
* We don't care about the result. Worst case scenario, the strings
* won't be initialised, i.e. remain NULL, which means that the info
* isn't available anyway...
*/
(void)RUN_ONCE(&init_info, init_info_strings);
switch (t) {
case OPENSSL_INFO_CONFIG_DIR:
return ossl_get_openssldir();
case OPENSSL_INFO_ENGINES_DIR:
return ossl_get_enginesdir();
case OPENSSL_INFO_MODULES_DIR:
return ossl_get_modulesdir();
case OPENSSL_INFO_DSO_EXTENSION:
return DSO_EXTENSION;
case OPENSSL_INFO_DIR_FILENAME_SEPARATOR:
#if defined(_WIN32)
return "\\";
#elif defined(__VMS)
return "";
#else /* Assume POSIX */
return "/";
#endif
case OPENSSL_INFO_LIST_SEPARATOR:
{
static const char list_sep[] = { LIST_SEPARATOR_CHAR, '\0' };
return list_sep;
}
case OPENSSL_INFO_SEED_SOURCE:
return seed_sources;
case OPENSSL_INFO_CPU_SETTINGS:
/*
* If successfully initialized, ossl_cpu_info_str will start
* with CPUINFO_PREFIX, if failed it will be an empty string.
* Strip away the CPUINFO_PREFIX which we don't need here.
*/
if (ossl_cpu_info_str[0] != '\0')
return ossl_cpu_info_str + strlen(CPUINFO_PREFIX);
break;
default:
break;
}
/* Not an error */
return NULL;
}
|
