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58964a49 RE |
1 | /* crypto/threads/th-lock.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 | #include <stdio.h> | |
60 | #include <stdlib.h> | |
61 | #include <string.h> | |
62 | #include <errno.h> | |
63 | #ifdef LINUX | |
64 | #include <typedefs.h> | |
65 | #endif | |
66 | #ifdef WIN32 | |
67 | #include <windows.h> | |
68 | #endif | |
69 | #ifdef SOLARIS | |
70 | #include <synch.h> | |
71 | #include <thread.h> | |
72 | #endif | |
73 | #ifdef IRIX | |
74 | #include <ulocks.h> | |
75 | #include <sys/prctl.h> | |
76 | #endif | |
2d2d3139 RL |
77 | #ifdef PTHREADS |
78 | #include <pthread.h> | |
79 | #endif | |
ec577822 BM |
80 | #include <openssl/lhash.h> |
81 | #include <openssl/crypto.h> | |
82 | #include <openssl/buffer.h> | |
83 | #include <openssl/e_os.h> | |
84 | #include <openssl/x509.h> | |
85 | #include <openssl/ssl.h> | |
86 | #include <openssl/err.h> | |
58964a49 | 87 | |
2d2d3139 | 88 | void CRYPTO_thread_setup(void); |
58964a49 RE |
89 | void CRYPTO_thread_cleanup(void); |
90 | ||
91 | static void irix_locking_callback(int mode,int type,char *file,int line); | |
92 | static void solaris_locking_callback(int mode,int type,char *file,int line); | |
93 | static void win32_locking_callback(int mode,int type,char *file,int line); | |
94 | static void pthreads_locking_callback(int mode,int type,char *file,int line); | |
95 | ||
96 | static unsigned long irix_thread_id(void ); | |
97 | static unsigned long solaris_thread_id(void ); | |
98 | static unsigned long pthreads_thread_id(void ); | |
99 | ||
58964a49 RE |
100 | /* usage: |
101 | * CRYPTO_thread_setup(); | |
657e60fa | 102 | * application code |
58964a49 RE |
103 | * CRYPTO_thread_cleanup(); |
104 | */ | |
105 | ||
106 | #define THREAD_STACK_SIZE (16*1024) | |
107 | ||
108 | #ifdef WIN32 | |
109 | ||
2d2d3139 | 110 | static HANDLE *lock_cs; |
58964a49 | 111 | |
2d2d3139 | 112 | void CRYPTO_thread_setup(void) |
58964a49 RE |
113 | { |
114 | int i; | |
115 | ||
26a3a48d | 116 | lock_cs=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(HANDLE)); |
2d2d3139 | 117 | for (i=0; i<CRYPTO_num_locks(); i++) |
58964a49 RE |
118 | { |
119 | lock_cs[i]=CreateMutex(NULL,FALSE,NULL); | |
120 | } | |
121 | ||
122 | CRYPTO_set_locking_callback((void (*)(int,int,char *,int))win32_locking_callback); | |
123 | /* id callback defined */ | |
124 | return(1); | |
125 | } | |
126 | ||
6b691a5c | 127 | static void CRYPTO_thread_cleanup(void) |
58964a49 RE |
128 | { |
129 | int i; | |
130 | ||
131 | CRYPTO_set_locking_callback(NULL); | |
2d2d3139 | 132 | for (i=0; i<CRYPTO_num_locks(); i++) |
58964a49 | 133 | CloseHandle(lock_cs[i]); |
26a3a48d | 134 | OPENSSL_free(lock_cs); |
58964a49 RE |
135 | } |
136 | ||
6b691a5c | 137 | void win32_locking_callback(int mode, int type, char *file, int line) |
58964a49 RE |
138 | { |
139 | if (mode & CRYPTO_LOCK) | |
140 | { | |
141 | WaitForSingleObject(lock_cs[type],INFINITE); | |
142 | } | |
143 | else | |
144 | { | |
145 | ReleaseMutex(lock_cs[type]); | |
146 | } | |
147 | } | |
148 | ||
149 | #endif /* WIN32 */ | |
150 | ||
151 | #ifdef SOLARIS | |
152 | ||
153 | #define USE_MUTEX | |
154 | ||
58964a49 | 155 | #ifdef USE_MUTEX |
2d2d3139 | 156 | static mutex_t *lock_cs; |
58964a49 | 157 | #else |
2d2d3139 | 158 | static rwlock_t *lock_cs; |
58964a49 | 159 | #endif |
2d2d3139 | 160 | static long *lock_count; |
58964a49 | 161 | |
6b691a5c | 162 | void CRYPTO_thread_setup(void) |
58964a49 RE |
163 | { |
164 | int i; | |
165 | ||
2d2d3139 | 166 | #ifdef USE_MUTEX |
26a3a48d | 167 | lock_cs=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(mutex_t)); |
2d2d3139 | 168 | #else |
26a3a48d | 169 | lock_cs=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(rwlock_t)); |
2d2d3139 | 170 | #endif |
26a3a48d | 171 | lock_count=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long)); |
2d2d3139 | 172 | for (i=0; i<CRYPTO_num_locks(); i++) |
58964a49 RE |
173 | { |
174 | lock_count[i]=0; | |
175 | #ifdef USE_MUTEX | |
176 | mutex_init(&(lock_cs[i]),USYNC_THREAD,NULL); | |
177 | #else | |
178 | rwlock_init(&(lock_cs[i]),USYNC_THREAD,NULL); | |
179 | #endif | |
180 | } | |
181 | ||
182 | CRYPTO_set_id_callback((unsigned long (*)())solaris_thread_id); | |
183 | CRYPTO_set_locking_callback((void (*)())solaris_locking_callback); | |
184 | } | |
185 | ||
6b691a5c | 186 | void CRYPTO_thread_cleanup(void) |
58964a49 RE |
187 | { |
188 | int i; | |
189 | ||
190 | CRYPTO_set_locking_callback(NULL); | |
2d2d3139 | 191 | for (i=0; i<CRYPTO_num_locks(); i++) |
58964a49 RE |
192 | { |
193 | #ifdef USE_MUTEX | |
194 | mutex_destroy(&(lock_cs[i])); | |
195 | #else | |
196 | rwlock_destroy(&(lock_cs[i])); | |
197 | #endif | |
198 | } | |
26a3a48d RL |
199 | OPENSSL_free(lock_cs); |
200 | OPENSSL_free(lock_count); | |
58964a49 RE |
201 | } |
202 | ||
6b691a5c | 203 | void solaris_locking_callback(int mode, int type, char *file, int line) |
58964a49 RE |
204 | { |
205 | #if 0 | |
206 | fprintf(stderr,"thread=%4d mode=%s lock=%s %s:%d\n", | |
207 | CRYPTO_thread_id(), | |
208 | (mode&CRYPTO_LOCK)?"l":"u", | |
209 | (type&CRYPTO_READ)?"r":"w",file,line); | |
210 | #endif | |
211 | ||
212 | #if 0 | |
213 | if (CRYPTO_LOCK_SSL_CERT == type) | |
214 | fprintf(stderr,"(t,m,f,l) %ld %d %s %d\n", | |
215 | CRYPTO_thread_id(), | |
216 | mode,file,line); | |
217 | #endif | |
218 | if (mode & CRYPTO_LOCK) | |
219 | { | |
220 | #ifdef USE_MUTEX | |
221 | mutex_lock(&(lock_cs[type])); | |
222 | #else | |
223 | if (mode & CRYPTO_READ) | |
224 | rw_rdlock(&(lock_cs[type])); | |
225 | else | |
226 | rw_wrlock(&(lock_cs[type])); | |
227 | #endif | |
228 | lock_count[type]++; | |
229 | } | |
230 | else | |
231 | { | |
232 | #ifdef USE_MUTEX | |
233 | mutex_unlock(&(lock_cs[type])); | |
234 | #else | |
235 | rw_unlock(&(lock_cs[type])); | |
236 | #endif | |
237 | } | |
238 | } | |
239 | ||
6b691a5c | 240 | unsigned long solaris_thread_id(void) |
58964a49 RE |
241 | { |
242 | unsigned long ret; | |
243 | ||
244 | ret=(unsigned long)thr_self(); | |
245 | return(ret); | |
246 | } | |
247 | #endif /* SOLARIS */ | |
248 | ||
249 | #ifdef IRIX | |
250 | /* I don't think this works..... */ | |
251 | ||
252 | static usptr_t *arena; | |
2d2d3139 | 253 | static usema_t **lock_cs; |
58964a49 | 254 | |
6b691a5c | 255 | void CRYPTO_thread_setup(void) |
58964a49 RE |
256 | { |
257 | int i; | |
258 | char filename[20]; | |
259 | ||
260 | strcpy(filename,"/tmp/mttest.XXXXXX"); | |
261 | mktemp(filename); | |
262 | ||
263 | usconfig(CONF_STHREADIOOFF); | |
264 | usconfig(CONF_STHREADMALLOCOFF); | |
265 | usconfig(CONF_INITUSERS,100); | |
266 | usconfig(CONF_LOCKTYPE,US_DEBUGPLUS); | |
267 | arena=usinit(filename); | |
268 | unlink(filename); | |
269 | ||
26a3a48d | 270 | lock_cs=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(usema_t *)); |
2d2d3139 | 271 | for (i=0; i<CRYPTO_num_locks(); i++) |
58964a49 RE |
272 | { |
273 | lock_cs[i]=usnewsema(arena,1); | |
274 | } | |
275 | ||
276 | CRYPTO_set_id_callback((unsigned long (*)())irix_thread_id); | |
277 | CRYPTO_set_locking_callback((void (*)())irix_locking_callback); | |
278 | } | |
279 | ||
6b691a5c | 280 | void CRYPTO_thread_cleanup(void) |
58964a49 RE |
281 | { |
282 | int i; | |
283 | ||
284 | CRYPTO_set_locking_callback(NULL); | |
2d2d3139 | 285 | for (i=0; i<CRYPTO_num_locks(); i++) |
58964a49 RE |
286 | { |
287 | char buf[10]; | |
288 | ||
289 | sprintf(buf,"%2d:",i); | |
290 | usdumpsema(lock_cs[i],stdout,buf); | |
291 | usfreesema(lock_cs[i],arena); | |
292 | } | |
26a3a48d | 293 | OPENSSL_free(lock_cs); |
58964a49 RE |
294 | } |
295 | ||
6b691a5c | 296 | void irix_locking_callback(int mode, int type, char *file, int line) |
58964a49 RE |
297 | { |
298 | if (mode & CRYPTO_LOCK) | |
299 | { | |
300 | uspsema(lock_cs[type]); | |
301 | } | |
302 | else | |
303 | { | |
304 | usvsema(lock_cs[type]); | |
305 | } | |
306 | } | |
307 | ||
6b691a5c | 308 | unsigned long irix_thread_id(void) |
58964a49 RE |
309 | { |
310 | unsigned long ret; | |
311 | ||
312 | ret=(unsigned long)getpid(); | |
313 | return(ret); | |
314 | } | |
315 | #endif /* IRIX */ | |
316 | ||
317 | /* Linux and a few others */ | |
318 | #ifdef PTHREADS | |
319 | ||
2d2d3139 RL |
320 | static pthread_mutex_t *lock_cs; |
321 | static long *lock_count; | |
58964a49 | 322 | |
6b691a5c | 323 | void CRYPTO_thread_setup(void) |
58964a49 RE |
324 | { |
325 | int i; | |
326 | ||
26a3a48d RL |
327 | lock_cs=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(pthread_mutex_t)); |
328 | lock_count=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long)); | |
2d2d3139 | 329 | for (i=0; i<CRYPTO_num_locks(); i++) |
58964a49 RE |
330 | { |
331 | lock_count[i]=0; | |
332 | pthread_mutex_init(&(lock_cs[i]),NULL); | |
333 | } | |
334 | ||
335 | CRYPTO_set_id_callback((unsigned long (*)())pthreads_thread_id); | |
336 | CRYPTO_set_locking_callback((void (*)())pthreads_locking_callback); | |
337 | } | |
338 | ||
6b691a5c | 339 | void thread_cleanup(void) |
58964a49 RE |
340 | { |
341 | int i; | |
342 | ||
343 | CRYPTO_set_locking_callback(NULL); | |
2d2d3139 | 344 | for (i=0; i<CRYPTO_num_locks(); i++) |
58964a49 RE |
345 | { |
346 | pthread_mutex_destroy(&(lock_cs[i])); | |
347 | } | |
26a3a48d RL |
348 | OPENSSL_free(lock_cs); |
349 | OPENSSL_free(lock_count); | |
58964a49 RE |
350 | } |
351 | ||
6b691a5c UM |
352 | void pthreads_locking_callback(int mode, int type, char *file, |
353 | int line) | |
58964a49 RE |
354 | { |
355 | #if 0 | |
356 | fprintf(stderr,"thread=%4d mode=%s lock=%s %s:%d\n", | |
357 | CRYPTO_thread_id(), | |
358 | (mode&CRYPTO_LOCK)?"l":"u", | |
359 | (type&CRYPTO_READ)?"r":"w",file,line); | |
360 | #endif | |
361 | #if 0 | |
362 | if (CRYPTO_LOCK_SSL_CERT == type) | |
363 | fprintf(stderr,"(t,m,f,l) %ld %d %s %d\n", | |
364 | CRYPTO_thread_id(), | |
365 | mode,file,line); | |
366 | #endif | |
367 | if (mode & CRYPTO_LOCK) | |
368 | { | |
369 | pthread_mutex_lock(&(lock_cs[type])); | |
370 | lock_count[type]++; | |
371 | } | |
372 | else | |
373 | { | |
374 | pthread_mutex_unlock(&(lock_cs[type])); | |
375 | } | |
376 | } | |
377 | ||
6b691a5c | 378 | unsigned long pthreads_thread_id(void) |
58964a49 RE |
379 | { |
380 | unsigned long ret; | |
381 | ||
382 | ret=(unsigned long)pthread_self(); | |
383 | return(ret); | |
384 | } | |
385 | ||
386 | #endif /* PTHREADS */ | |
387 |