1 /* crypto/threads/th-lock.c */ 2 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay (at) 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 (at) 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 (at) 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 (at) 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 OPENSSL_SYS_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 #ifdef PTHREADS 78 #include <pthread.h> 79 #endif 80 #include <openssl/lhash.h> 81 #include <openssl/crypto.h> 82 #include <openssl/buffer.h> 83 #include "../../e_os.h" 84 #include <openssl/x509.h> 85 #include <openssl/ssl.h> 86 #include <openssl/err.h> 87 88 void CRYPTO_thread_setup(void); 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 ); 99 100 /* usage: 101 * CRYPTO_thread_setup(); 102 * application code 103 * CRYPTO_thread_cleanup(); 104 */ 105 106 #define THREAD_STACK_SIZE (16*1024) 107 108 #ifdef OPENSSL_SYS_WIN32 109 110 static HANDLE *lock_cs; 111 112 void CRYPTO_thread_setup(void) 113 { 114 int i; 115 116 lock_cs=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(HANDLE)); 117 for (i=0; i<CRYPTO_num_locks(); i++) 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 } 126 127 static void CRYPTO_thread_cleanup(void) 128 { 129 int i; 130 131 CRYPTO_set_locking_callback(NULL); 132 for (i=0; i<CRYPTO_num_locks(); i++) 133 CloseHandle(lock_cs[i]); 134 OPENSSL_free(lock_cs); 135 } 136 137 void win32_locking_callback(int mode, int type, char *file, int line) 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 /* OPENSSL_SYS_WIN32 */ 150 151 #ifdef SOLARIS 152 153 #define USE_MUTEX 154 155 #ifdef USE_MUTEX 156 static mutex_t *lock_cs; 157 #else 158 static rwlock_t *lock_cs; 159 #endif 160 static long *lock_count; 161 162 void CRYPTO_thread_setup(void) 163 { 164 int i; 165 166 #ifdef USE_MUTEX 167 lock_cs=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(mutex_t)); 168 #else 169 lock_cs=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(rwlock_t)); 170 #endif 171 lock_count=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long)); 172 for (i=0; i<CRYPTO_num_locks(); i++) 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 } 185 186 void CRYPTO_thread_cleanup(void) 187 { 188 int i; 189 190 CRYPTO_set_locking_callback(NULL); 191 for (i=0; i<CRYPTO_num_locks(); i++) 192 { 193 #ifdef USE_MUTEX 194 mutex_destroy(&(lock_cs[i])); 195 #else 196 rwlock_destroy(&(lock_cs[i])); 197 #endif 198 } 199 OPENSSL_free(lock_cs); 200 OPENSSL_free(lock_count); 201 } 202 203 void solaris_locking_callback(int mode, int type, char *file, int line) 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 } 239 240 unsigned long solaris_thread_id(void) 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; 253 static usema_t **lock_cs; 254 255 void CRYPTO_thread_setup(void) 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); 269 270 lock_cs=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(usema_t *)); 271 for (i=0; i<CRYPTO_num_locks(); i++) 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 } 279 280 void CRYPTO_thread_cleanup(void) 281 { 282 int i; 283 284 CRYPTO_set_locking_callback(NULL); 285 for (i=0; i<CRYPTO_num_locks(); i++) 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 } 293 OPENSSL_free(lock_cs); 294 } 295 296 void irix_locking_callback(int mode, int type, char *file, int line) 297 { 298 if (mode & CRYPTO_LOCK) 299 { 300 uspsema(lock_cs[type]); 301 } 302 else 303 { 304 usvsema(lock_cs[type]); 305 } 306 } 307 308 unsigned long irix_thread_id(void) 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 319 320 static pthread_mutex_t *lock_cs; 321 static long *lock_count; 322 323 void CRYPTO_thread_setup(void) 324 { 325 int i; 326 327 lock_cs=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(pthread_mutex_t)); 328 lock_count=OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long)); 329 for (i=0; i<CRYPTO_num_locks(); i++) 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 } 338 339 void thread_cleanup(void) 340 { 341 int i; 342 343 CRYPTO_set_locking_callback(NULL); 344 for (i=0; i<CRYPTO_num_locks(); i++) 345 { 346 pthread_mutex_destroy(&(lock_cs[i])); 347 } 348 OPENSSL_free(lock_cs); 349 OPENSSL_free(lock_count); 350 } 351 352 void pthreads_locking_callback(int mode, int type, char *file, 353 int line) 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 } 377 378 unsigned long pthreads_thread_id(void) 379 { 380 unsigned long ret; 381 382 ret=(unsigned long)pthread_self(); 383 return(ret); 384 } 385 386 #endif /* PTHREADS */ 387 388
