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