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Side by Side Diff: openssl/crypto/rand/rand_lib.c

Issue 9254031: Upgrade chrome's OpenSSL to same version Android ships with. (Closed) Base URL: http://src.chromium.org/svn/trunk/deps/third_party/openssl/
Patch Set: '' Created 8 years, 11 months ago
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1 /* crypto/rand/rand_lib.c */ 1 /* crypto/rand/rand_lib.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved. 3 * All rights reserved.
4 * 4 *
5 * This package is an SSL implementation written 5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com). 6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL. 7 * The implementation was written so as to conform with Netscapes SSL.
8 * 8 *
9 * This library is free for commercial and non-commercial use as long as 9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions 10 * the following conditions are aheared to. The following conditions
(...skipping 42 matching lines...) Expand 10 before | Expand all | Expand 10 after
53 * The licence and distribution terms for any publically available version or 53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be 54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence 55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.] 56 * [including the GNU Public Licence.]
57 */ 57 */
58 58
59 #include <stdio.h> 59 #include <stdio.h>
60 #include <time.h> 60 #include <time.h>
61 #include "cryptlib.h" 61 #include "cryptlib.h"
62 #include <openssl/rand.h> 62 #include <openssl/rand.h>
63 #include "rand_lcl.h"
64 #ifdef OPENSSL_FIPS
65 #include <openssl/fips.h>
66 #include <openssl/fips_rand.h>
67 #endif
68
69 #ifndef OPENSSL_NO_ENGINE 63 #ifndef OPENSSL_NO_ENGINE
70 #include <openssl/engine.h> 64 #include <openssl/engine.h>
71 #endif 65 #endif
72 66
73 static const RAND_METHOD *default_RAND_meth = NULL;
74
75 #ifdef OPENSSL_FIPS
76
77 static int fips_RAND_set_rand_method(const RAND_METHOD *meth,
78 const RAND_METHOD **pmeth)
79 {
80 *pmeth = meth;
81 return 1;
82 }
83
84 static const RAND_METHOD *fips_RAND_get_rand_method(const RAND_METHOD **pmeth)
85 {
86 if (!*pmeth)
87 {
88 if(FIPS_mode())
89 *pmeth=FIPS_rand_method();
90 else
91 *pmeth = RAND_SSLeay();
92 }
93
94 if(FIPS_mode()
95 && *pmeth != FIPS_rand_check())
96 {
97 RANDerr(RAND_F_FIPS_RAND_GET_RAND_METHOD,RAND_R_NON_FIPS_METHOD);
98 return 0;
99 }
100
101 return *pmeth;
102 }
103
104 static int (*RAND_set_rand_method_func)(const RAND_METHOD *meth,
105 const RAND_METHOD **pmeth)
106 = fips_RAND_set_rand_method;
107 static const RAND_METHOD *(*RAND_get_rand_method_func)
108 (const RAND_METHOD **pmeth)
109 = fips_RAND_get_rand_method;
110
111 #ifndef OPENSSL_NO_ENGINE
112 void int_RAND_set_callbacks(
113 int (*set_rand_func)(const RAND_METHOD *meth,
114 const RAND_METHOD **pmeth),
115 const RAND_METHOD *(*get_rand_func)
116 (const RAND_METHOD **pmeth))
117 {
118 RAND_set_rand_method_func = set_rand_func;
119 RAND_get_rand_method_func = get_rand_func;
120 }
121 #endif
122
123 int RAND_set_rand_method(const RAND_METHOD *meth)
124 {
125 return RAND_set_rand_method_func(meth, &default_RAND_meth);
126 }
127
128 const RAND_METHOD *RAND_get_rand_method(void)
129 {
130 return RAND_get_rand_method_func(&default_RAND_meth);
131 }
132
133 #else
134
135 #ifndef OPENSSL_NO_ENGINE 67 #ifndef OPENSSL_NO_ENGINE
136 /* non-NULL if default_RAND_meth is ENGINE-provided */ 68 /* non-NULL if default_RAND_meth is ENGINE-provided */
137 static ENGINE *funct_ref =NULL; 69 static ENGINE *funct_ref =NULL;
138 #endif 70 #endif
71 static const RAND_METHOD *default_RAND_meth = NULL;
139 72
140 int RAND_set_rand_method(const RAND_METHOD *meth) 73 int RAND_set_rand_method(const RAND_METHOD *meth)
141 { 74 {
142 #ifndef OPENSSL_NO_ENGINE 75 #ifndef OPENSSL_NO_ENGINE
143 if(funct_ref) 76 if(funct_ref)
144 { 77 {
145 ENGINE_finish(funct_ref); 78 ENGINE_finish(funct_ref);
146 funct_ref = NULL; 79 funct_ref = NULL;
147 } 80 }
148 #endif 81 #endif
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189 return 0; 122 return 0;
190 } 123 }
191 } 124 }
192 /* This function releases any prior ENGINE so call it first */ 125 /* This function releases any prior ENGINE so call it first */
193 RAND_set_rand_method(tmp_meth); 126 RAND_set_rand_method(tmp_meth);
194 funct_ref = engine; 127 funct_ref = engine;
195 return 1; 128 return 1;
196 } 129 }
197 #endif 130 #endif
198 131
199 #endif
200
201 void RAND_cleanup(void) 132 void RAND_cleanup(void)
202 { 133 {
203 const RAND_METHOD *meth = RAND_get_rand_method(); 134 const RAND_METHOD *meth = RAND_get_rand_method();
204 if (meth && meth->cleanup) 135 if (meth && meth->cleanup)
205 meth->cleanup(); 136 meth->cleanup();
206 RAND_set_rand_method(NULL); 137 RAND_set_rand_method(NULL);
207 } 138 }
208 139
209 void RAND_seed(const void *buf, int num) 140 void RAND_seed(const void *buf, int num)
210 { 141 {
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236 return(-1); 167 return(-1);
237 } 168 }
238 169
239 int RAND_status(void) 170 int RAND_status(void)
240 { 171 {
241 const RAND_METHOD *meth = RAND_get_rand_method(); 172 const RAND_METHOD *meth = RAND_get_rand_method();
242 if (meth && meth->status) 173 if (meth && meth->status)
243 return meth->status(); 174 return meth->status();
244 return 0; 175 return 0;
245 } 176 }
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