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Diffstat (limited to 'src/lib/libcrypto/rand/rand_nw.c')
-rw-r--r-- | src/lib/libcrypto/rand/rand_nw.c | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/src/lib/libcrypto/rand/rand_nw.c b/src/lib/libcrypto/rand/rand_nw.c new file mode 100644 index 0000000000..8d5b8d2e32 --- /dev/null +++ b/src/lib/libcrypto/rand/rand_nw.c | |||
@@ -0,0 +1,183 @@ | |||
1 | /* crypto/rand/rand_nw.c */ | ||
2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | ||
3 | * All rights reserved. | ||
4 | * | ||
5 | * This package is an SSL implementation written | ||
6 | * by Eric Young (eay@cryptsoft.com). | ||
7 | * The implementation was written so as to conform with Netscapes SSL. | ||
8 | * | ||
9 | * This library is free for commercial and non-commercial use as long as | ||
10 | * the following conditions are aheared to. The following conditions | ||
11 | * apply to all code found in this distribution, be it the RC4, RSA, | ||
12 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | ||
13 | * included with this distribution is covered by the same copyright terms | ||
14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | ||
15 | * | ||
16 | * Copyright remains Eric Young's, and as such any Copyright notices in | ||
17 | * the code are not to be removed. | ||
18 | * If this package is used in a product, Eric Young should be given attribution | ||
19 | * as the author of the parts of the library used. | ||
20 | * This can be in the form of a textual message at program startup or | ||
21 | * in documentation (online or textual) provided with the package. | ||
22 | * | ||
23 | * Redistribution and use in source and binary forms, with or without | ||
24 | * modification, are permitted provided that the following conditions | ||
25 | * are met: | ||
26 | * 1. Redistributions of source code must retain the copyright | ||
27 | * notice, this list of conditions and the following disclaimer. | ||
28 | * 2. Redistributions in binary form must reproduce the above copyright | ||
29 | * notice, this list of conditions and the following disclaimer in the | ||
30 | * documentation and/or other materials provided with the distribution. | ||
31 | * 3. All advertising materials mentioning features or use of this software | ||
32 | * must display the following acknowledgement: | ||
33 | * "This product includes cryptographic software written by | ||
34 | * Eric Young (eay@cryptsoft.com)" | ||
35 | * The word 'cryptographic' can be left out if the rouines from the library | ||
36 | * being used are not cryptographic related :-). | ||
37 | * 4. If you include any Windows specific code (or a derivative thereof) from | ||
38 | * the apps directory (application code) you must include an acknowledgement: | ||
39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | ||
40 | * | ||
41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | ||
42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
44 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | ||
45 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
47 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
51 | * SUCH DAMAGE. | ||
52 | * | ||
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 | ||
55 | * copied and put under another distribution licence | ||
56 | * [including the GNU Public Licence.] | ||
57 | */ | ||
58 | /* ==================================================================== | ||
59 | * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved. | ||
60 | * | ||
61 | * Redistribution and use in source and binary forms, with or without | ||
62 | * modification, are permitted provided that the following conditions | ||
63 | * are met: | ||
64 | * | ||
65 | * 1. Redistributions of source code must retain the above copyright | ||
66 | * notice, this list of conditions and the following disclaimer. | ||
67 | * | ||
68 | * 2. Redistributions in binary form must reproduce the above copyright | ||
69 | * notice, this list of conditions and the following disclaimer in | ||
70 | * the documentation and/or other materials provided with the | ||
71 | * distribution. | ||
72 | * | ||
73 | * 3. All advertising materials mentioning features or use of this | ||
74 | * software must display the following acknowledgment: | ||
75 | * "This product includes software developed by the OpenSSL Project | ||
76 | * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" | ||
77 | * | ||
78 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | ||
79 | * endorse or promote products derived from this software without | ||
80 | * prior written permission. For written permission, please contact | ||
81 | * openssl-core@openssl.org. | ||
82 | * | ||
83 | * 5. Products derived from this software may not be called "OpenSSL" | ||
84 | * nor may "OpenSSL" appear in their names without prior written | ||
85 | * permission of the OpenSSL Project. | ||
86 | * | ||
87 | * 6. Redistributions of any form whatsoever must retain the following | ||
88 | * acknowledgment: | ||
89 | * "This product includes software developed by the OpenSSL Project | ||
90 | * for use in the OpenSSL Toolkit (http://www.openssl.org/)" | ||
91 | * | ||
92 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | ||
93 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
94 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | ||
95 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | ||
96 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
97 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | ||
98 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
99 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
100 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | ||
101 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
102 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | ||
103 | * OF THE POSSIBILITY OF SUCH DAMAGE. | ||
104 | * ==================================================================== | ||
105 | * | ||
106 | * This product includes cryptographic software written by Eric Young | ||
107 | * (eay@cryptsoft.com). This product includes software written by Tim | ||
108 | * Hudson (tjh@cryptsoft.com). | ||
109 | * | ||
110 | */ | ||
111 | |||
112 | #include "cryptlib.h" | ||
113 | #include <openssl/rand.h> | ||
114 | #include "rand_lcl.h" | ||
115 | |||
116 | #if defined (OPENSSL_SYS_NETWARE) | ||
117 | |||
118 | #if defined(NETWARE_LIBC) | ||
119 | #include <nks/thread.h> | ||
120 | #else | ||
121 | #include <nwthread.h> | ||
122 | #endif | ||
123 | |||
124 | extern int GetProcessSwitchCount(void); | ||
125 | #if !defined(NETWARE_LIBC) || (CURRENT_NDK_THRESHOLD < 509220000) | ||
126 | extern void *RunningProcess; /* declare here same as found in newer NDKs */ | ||
127 | extern unsigned long GetSuperHighResolutionTimer(void); | ||
128 | #endif | ||
129 | |||
130 | /* the FAQ indicates we need to provide at least 20 bytes (160 bits) of seed | ||
131 | */ | ||
132 | int RAND_poll(void) | ||
133 | { | ||
134 | unsigned long l; | ||
135 | unsigned long tsc; | ||
136 | int i; | ||
137 | |||
138 | /* There are several options to gather miscellaneous data | ||
139 | * but for now we will loop checking the time stamp counter (rdtsc) and | ||
140 | * the SuperHighResolutionTimer. Each iteration will collect 8 bytes | ||
141 | * of data but it is treated as only 1 byte of entropy. The call to | ||
142 | * ThreadSwitchWithDelay() will introduce additional variability into | ||
143 | * the data returned by rdtsc. | ||
144 | * | ||
145 | * Applications can agument the seed material by adding additional | ||
146 | * stuff with RAND_add() and should probably do so. | ||
147 | */ | ||
148 | l = GetProcessSwitchCount(); | ||
149 | RAND_add(&l,sizeof(l),1); | ||
150 | |||
151 | /* need to cast the void* to unsigned long here */ | ||
152 | l = (unsigned long)RunningProcess; | ||
153 | RAND_add(&l,sizeof(l),1); | ||
154 | |||
155 | for( i=2; i<ENTROPY_NEEDED; i++) | ||
156 | { | ||
157 | #ifdef __MWERKS__ | ||
158 | asm | ||
159 | { | ||
160 | rdtsc | ||
161 | mov tsc, eax | ||
162 | } | ||
163 | #elif defined(__GNUC__) && __GNUC__>=2 && !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_NO_INLINE_ASM) | ||
164 | asm volatile("rdtsc":"=a"(tsc)::"edx"); | ||
165 | #endif | ||
166 | |||
167 | RAND_add(&tsc, sizeof(tsc), 1); | ||
168 | |||
169 | l = GetSuperHighResolutionTimer(); | ||
170 | RAND_add(&l, sizeof(l), 0); | ||
171 | |||
172 | # if defined(NETWARE_LIBC) | ||
173 | NXThreadYield(); | ||
174 | # else /* NETWARE_CLIB */ | ||
175 | ThreadSwitchWithDelay(); | ||
176 | # endif | ||
177 | } | ||
178 | |||
179 | return 1; | ||
180 | } | ||
181 | |||
182 | #endif | ||
183 | |||