155714Skris/* crypto/threads/th-lock.c */ 255714Skris/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 355714Skris * All rights reserved. 455714Skris * 555714Skris * This package is an SSL implementation written 655714Skris * by Eric Young (eay@cryptsoft.com). 755714Skris * The implementation was written so as to conform with Netscapes SSL. 8280304Sjkim * 955714Skris * This library is free for commercial and non-commercial use as long as 1055714Skris * the following conditions are aheared to. The following conditions 1155714Skris * apply to all code found in this distribution, be it the RC4, RSA, 1255714Skris * lhash, DES, etc., code; not just the SSL code. The SSL documentation 1355714Skris * included with this distribution is covered by the same copyright terms 1455714Skris * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15280304Sjkim * 1655714Skris * Copyright remains Eric Young's, and as such any Copyright notices in 1755714Skris * the code are not to be removed. 1855714Skris * If this package is used in a product, Eric Young should be given attribution 1955714Skris * as the author of the parts of the library used. 2055714Skris * This can be in the form of a textual message at program startup or 2155714Skris * in documentation (online or textual) provided with the package. 22280304Sjkim * 2355714Skris * Redistribution and use in source and binary forms, with or without 2455714Skris * modification, are permitted provided that the following conditions 2555714Skris * are met: 2655714Skris * 1. Redistributions of source code must retain the copyright 2755714Skris * notice, this list of conditions and the following disclaimer. 2855714Skris * 2. Redistributions in binary form must reproduce the above copyright 2955714Skris * notice, this list of conditions and the following disclaimer in the 3055714Skris * documentation and/or other materials provided with the distribution. 3155714Skris * 3. All advertising materials mentioning features or use of this software 3255714Skris * must display the following acknowledgement: 3355714Skris * "This product includes cryptographic software written by 3455714Skris * Eric Young (eay@cryptsoft.com)" 3555714Skris * The word 'cryptographic' can be left out if the rouines from the library 3655714Skris * being used are not cryptographic related :-). 37280304Sjkim * 4. If you include any Windows specific code (or a derivative thereof) from 3855714Skris * the apps directory (application code) you must include an acknowledgement: 3955714Skris * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40280304Sjkim * 4155714Skris * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 4255714Skris * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 4355714Skris * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 4455714Skris * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 4555714Skris * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 4655714Skris * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 4755714Skris * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 4855714Skris * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 4955714Skris * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 5055714Skris * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 5155714Skris * SUCH DAMAGE. 52280304Sjkim * 5355714Skris * The licence and distribution terms for any publically available version or 5455714Skris * derivative of this code cannot be changed. i.e. this code cannot simply be 5555714Skris * copied and put under another distribution licence 5655714Skris * [including the GNU Public Licence.] 5755714Skris */ 5855714Skris 5955714Skris#include <stdio.h> 6055714Skris#include <stdlib.h> 6155714Skris#include <string.h> 6255714Skris#include <errno.h> 6355714Skris#ifdef LINUX 64280304Sjkim# include <typedefs.h> 6555714Skris#endif 66109998Smarkm#ifdef OPENSSL_SYS_WIN32 67280304Sjkim# include <windows.h> 6855714Skris#endif 6955714Skris#ifdef SOLARIS 70280304Sjkim# include <synch.h> 71280304Sjkim# include <thread.h> 7255714Skris#endif 7355714Skris#ifdef IRIX 74280304Sjkim# include <ulocks.h> 75280304Sjkim# include <sys/prctl.h> 7655714Skris#endif 7759191Skris#ifdef PTHREADS 78280304Sjkim# include <pthread.h> 7959191Skris#endif 8055714Skris#include <openssl/lhash.h> 8155714Skris#include <openssl/crypto.h> 8255714Skris#include <openssl/buffer.h> 83160814Ssimon#include "../../e_os.h" 8455714Skris#include <openssl/x509.h> 8555714Skris#include <openssl/ssl.h> 8655714Skris#include <openssl/err.h> 8755714Skris 8859191Skrisvoid CRYPTO_thread_setup(void); 8955714Skrisvoid CRYPTO_thread_cleanup(void); 9055714Skris 91280304Sjkimstatic void irix_locking_callback(int mode, int type, char *file, int line); 92280304Sjkimstatic void solaris_locking_callback(int mode, int type, char *file, 93280304Sjkim int line); 94280304Sjkimstatic void win32_locking_callback(int mode, int type, char *file, int line); 95280304Sjkimstatic void pthreads_locking_callback(int mode, int type, char *file, 96280304Sjkim int line); 9755714Skris 98280304Sjkimstatic unsigned long irix_thread_id(void); 99280304Sjkimstatic unsigned long solaris_thread_id(void); 100280304Sjkimstatic unsigned long pthreads_thread_id(void); 10155714Skris 102280304Sjkim/*- 103280304Sjkim * usage: 10455714Skris * CRYPTO_thread_setup(); 10559191Skris * application code 10655714Skris * CRYPTO_thread_cleanup(); 10755714Skris */ 10855714Skris 10955714Skris#define THREAD_STACK_SIZE (16*1024) 11055714Skris 111109998Smarkm#ifdef OPENSSL_SYS_WIN32 11255714Skris 11359191Skrisstatic HANDLE *lock_cs; 11455714Skris 11559191Skrisvoid CRYPTO_thread_setup(void) 116280304Sjkim{ 117280304Sjkim int i; 11855714Skris 119280304Sjkim lock_cs = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(HANDLE)); 120284285Sjkim if (!lock_cs) { 121280304Sjkim /* Nothing we can do about this...void function! */ 122280304Sjkim return; 123280304Sjkim } 124280304Sjkim for (i = 0; i < CRYPTO_num_locks(); i++) { 125280304Sjkim lock_cs[i] = CreateMutex(NULL, FALSE, NULL); 126280304Sjkim } 12755714Skris 128280304Sjkim CRYPTO_set_locking_callback((void (*)(int, int, char *, int)) 129280304Sjkim win32_locking_callback); 130280304Sjkim /* id callback defined */ 131280304Sjkim return (1); 132280304Sjkim} 13355714Skris 13455714Skrisstatic void CRYPTO_thread_cleanup(void) 135280304Sjkim{ 136280304Sjkim int i; 13755714Skris 138280304Sjkim CRYPTO_set_locking_callback(NULL); 139280304Sjkim for (i = 0; i < CRYPTO_num_locks(); i++) 140280304Sjkim CloseHandle(lock_cs[i]); 141280304Sjkim OPENSSL_free(lock_cs); 142280304Sjkim} 14355714Skris 14455714Skrisvoid win32_locking_callback(int mode, int type, char *file, int line) 145280304Sjkim{ 146280304Sjkim if (mode & CRYPTO_LOCK) { 147280304Sjkim WaitForSingleObject(lock_cs[type], INFINITE); 148280304Sjkim } else { 149280304Sjkim ReleaseMutex(lock_cs[type]); 150280304Sjkim } 151280304Sjkim} 15255714Skris 153280304Sjkim#endif /* OPENSSL_SYS_WIN32 */ 15455714Skris 15555714Skris#ifdef SOLARIS 15655714Skris 157280304Sjkim# define USE_MUTEX 15855714Skris 159280304Sjkim# ifdef USE_MUTEX 16059191Skrisstatic mutex_t *lock_cs; 161280304Sjkim# else 16259191Skrisstatic rwlock_t *lock_cs; 163280304Sjkim# endif 16459191Skrisstatic long *lock_count; 16555714Skris 16655714Skrisvoid CRYPTO_thread_setup(void) 167280304Sjkim{ 168280304Sjkim int i; 16955714Skris 170280304Sjkim# ifdef USE_MUTEX 171280304Sjkim lock_cs = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(mutex_t)); 172280304Sjkim# else 173280304Sjkim lock_cs = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(rwlock_t)); 174280304Sjkim# endif 175284285Sjkim if (!lock_cs) { 176280304Sjkim /* Nothing we can do about this...void function! */ 177280304Sjkim return; 178280304Sjkim } 179280304Sjkim lock_count = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long)); 180280304Sjkim for (i = 0; i < CRYPTO_num_locks(); i++) { 181280304Sjkim lock_count[i] = 0; 182280304Sjkim# ifdef USE_MUTEX 183280304Sjkim mutex_init(&(lock_cs[i]), USYNC_THREAD, NULL); 184280304Sjkim# else 185280304Sjkim rwlock_init(&(lock_cs[i]), USYNC_THREAD, NULL); 186280304Sjkim# endif 187280304Sjkim } 18855714Skris 189280304Sjkim CRYPTO_set_id_callback((unsigned long (*)())solaris_thread_id); 190280304Sjkim CRYPTO_set_locking_callback((void (*)())solaris_locking_callback); 191280304Sjkim} 19255714Skris 19355714Skrisvoid CRYPTO_thread_cleanup(void) 194280304Sjkim{ 195280304Sjkim int i; 19655714Skris 197280304Sjkim CRYPTO_set_locking_callback(NULL); 198280304Sjkim for (i = 0; i < CRYPTO_num_locks(); i++) { 199280304Sjkim# ifdef USE_MUTEX 200280304Sjkim mutex_destroy(&(lock_cs[i])); 201280304Sjkim# else 202280304Sjkim rwlock_destroy(&(lock_cs[i])); 203280304Sjkim# endif 204280304Sjkim } 205280304Sjkim OPENSSL_free(lock_cs); 206280304Sjkim OPENSSL_free(lock_count); 207280304Sjkim} 20855714Skris 20955714Skrisvoid solaris_locking_callback(int mode, int type, char *file, int line) 210280304Sjkim{ 211280304Sjkim# if 0 212280304Sjkim fprintf(stderr, "thread=%4d mode=%s lock=%s %s:%d\n", 213280304Sjkim CRYPTO_thread_id(), 214280304Sjkim (mode & CRYPTO_LOCK) ? "l" : "u", 215280304Sjkim (type & CRYPTO_READ) ? "r" : "w", file, line); 216280304Sjkim# endif 21755714Skris 218280304Sjkim# if 0 219280304Sjkim if (CRYPTO_LOCK_SSL_CERT == type) 220280304Sjkim fprintf(stderr, "(t,m,f,l) %ld %d %s %d\n", 221280304Sjkim CRYPTO_thread_id(), mode, file, line); 222280304Sjkim# endif 223280304Sjkim if (mode & CRYPTO_LOCK) { 224280304Sjkim# ifdef USE_MUTEX 225280304Sjkim mutex_lock(&(lock_cs[type])); 226280304Sjkim# else 227280304Sjkim if (mode & CRYPTO_READ) 228280304Sjkim rw_rdlock(&(lock_cs[type])); 229280304Sjkim else 230280304Sjkim rw_wrlock(&(lock_cs[type])); 231280304Sjkim# endif 232280304Sjkim lock_count[type]++; 233280304Sjkim } else { 234280304Sjkim# ifdef USE_MUTEX 235280304Sjkim mutex_unlock(&(lock_cs[type])); 236280304Sjkim# else 237280304Sjkim rw_unlock(&(lock_cs[type])); 238280304Sjkim# endif 239280304Sjkim } 240280304Sjkim} 24155714Skris 24255714Skrisunsigned long solaris_thread_id(void) 243280304Sjkim{ 244280304Sjkim unsigned long ret; 24555714Skris 246280304Sjkim ret = (unsigned long)thr_self(); 247280304Sjkim return (ret); 248280304Sjkim} 249280304Sjkim#endif /* SOLARIS */ 25055714Skris 25155714Skris#ifdef IRIX 25255714Skris/* I don't think this works..... */ 25355714Skris 25455714Skrisstatic usptr_t *arena; 25559191Skrisstatic usema_t **lock_cs; 25655714Skris 25755714Skrisvoid CRYPTO_thread_setup(void) 258280304Sjkim{ 259280304Sjkim int i; 260280304Sjkim char filename[20]; 26155714Skris 262280304Sjkim lock_cs = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(usema_t *)); 263284285Sjkim if (!lock_cs) { 264280304Sjkim /* Nothing we can do about this...void function! */ 265280304Sjkim return; 266280304Sjkim } 26755714Skris 268280304Sjkim strcpy(filename, "/tmp/mttest.XXXXXX"); 269280304Sjkim mktemp(filename); 27055714Skris 271280304Sjkim usconfig(CONF_STHREADIOOFF); 272280304Sjkim usconfig(CONF_STHREADMALLOCOFF); 273280304Sjkim usconfig(CONF_INITUSERS, 100); 274280304Sjkim usconfig(CONF_LOCKTYPE, US_DEBUGPLUS); 275280304Sjkim arena = usinit(filename); 276280304Sjkim unlink(filename); 27755714Skris 278280304Sjkim for (i = 0; i < CRYPTO_num_locks(); i++) { 279280304Sjkim lock_cs[i] = usnewsema(arena, 1); 280280304Sjkim } 28155714Skris 282280304Sjkim CRYPTO_set_id_callback((unsigned long (*)())irix_thread_id); 283280304Sjkim CRYPTO_set_locking_callback((void (*)())irix_locking_callback); 284280304Sjkim} 285280304Sjkim 28655714Skrisvoid CRYPTO_thread_cleanup(void) 287280304Sjkim{ 288280304Sjkim int i; 28955714Skris 290280304Sjkim CRYPTO_set_locking_callback(NULL); 291280304Sjkim for (i = 0; i < CRYPTO_num_locks(); i++) { 292280304Sjkim char buf[10]; 29355714Skris 294280304Sjkim sprintf(buf, "%2d:", i); 295280304Sjkim usdumpsema(lock_cs[i], stdout, buf); 296280304Sjkim usfreesema(lock_cs[i], arena); 297280304Sjkim } 298280304Sjkim OPENSSL_free(lock_cs); 299280304Sjkim} 30055714Skris 30155714Skrisvoid irix_locking_callback(int mode, int type, char *file, int line) 302280304Sjkim{ 303280304Sjkim if (mode & CRYPTO_LOCK) { 304280304Sjkim uspsema(lock_cs[type]); 305280304Sjkim } else { 306280304Sjkim usvsema(lock_cs[type]); 307280304Sjkim } 308280304Sjkim} 30955714Skris 31055714Skrisunsigned long irix_thread_id(void) 311280304Sjkim{ 312280304Sjkim unsigned long ret; 31355714Skris 314280304Sjkim ret = (unsigned long)getpid(); 315280304Sjkim return (ret); 316280304Sjkim} 317280304Sjkim#endif /* IRIX */ 31855714Skris 31955714Skris/* Linux and a few others */ 32055714Skris#ifdef PTHREADS 32155714Skris 32259191Skrisstatic pthread_mutex_t *lock_cs; 32359191Skrisstatic long *lock_count; 32455714Skris 32555714Skrisvoid CRYPTO_thread_setup(void) 326280304Sjkim{ 327280304Sjkim int i; 32855714Skris 329280304Sjkim lock_cs = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(pthread_mutex_t)); 330280304Sjkim lock_count = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long)); 331284285Sjkim if (!lock_cs || !lock_count) { 332280304Sjkim /* Nothing we can do about this...void function! */ 333284285Sjkim if (lock_cs) 334280304Sjkim OPENSSL_free(lock_cs); 335284285Sjkim if (lock_count) 336280304Sjkim OPENSSL_free(lock_count); 337280304Sjkim return; 338280304Sjkim } 339280304Sjkim for (i = 0; i < CRYPTO_num_locks(); i++) { 340280304Sjkim lock_count[i] = 0; 341280304Sjkim pthread_mutex_init(&(lock_cs[i]), NULL); 342280304Sjkim } 34355714Skris 344280304Sjkim CRYPTO_set_id_callback((unsigned long (*)())pthreads_thread_id); 345280304Sjkim CRYPTO_set_locking_callback((void (*)())pthreads_locking_callback); 346280304Sjkim} 34755714Skris 34855714Skrisvoid thread_cleanup(void) 349280304Sjkim{ 350280304Sjkim int i; 35155714Skris 352280304Sjkim CRYPTO_set_locking_callback(NULL); 353280304Sjkim for (i = 0; i < CRYPTO_num_locks(); i++) { 354280304Sjkim pthread_mutex_destroy(&(lock_cs[i])); 355280304Sjkim } 356280304Sjkim OPENSSL_free(lock_cs); 357280304Sjkim OPENSSL_free(lock_count); 358280304Sjkim} 35955714Skris 360280304Sjkimvoid pthreads_locking_callback(int mode, int type, char *file, int line) 361280304Sjkim{ 362280304Sjkim# if 0 363280304Sjkim fprintf(stderr, "thread=%4d mode=%s lock=%s %s:%d\n", 364280304Sjkim CRYPTO_thread_id(), 365280304Sjkim (mode & CRYPTO_LOCK) ? "l" : "u", 366280304Sjkim (type & CRYPTO_READ) ? "r" : "w", file, line); 367280304Sjkim# endif 368280304Sjkim# if 0 369280304Sjkim if (CRYPTO_LOCK_SSL_CERT == type) 370280304Sjkim fprintf(stderr, "(t,m,f,l) %ld %d %s %d\n", 371280304Sjkim CRYPTO_thread_id(), mode, file, line); 372280304Sjkim# endif 373280304Sjkim if (mode & CRYPTO_LOCK) { 374280304Sjkim pthread_mutex_lock(&(lock_cs[type])); 375280304Sjkim lock_count[type]++; 376280304Sjkim } else { 377280304Sjkim pthread_mutex_unlock(&(lock_cs[type])); 378280304Sjkim } 379280304Sjkim} 38055714Skris 38155714Skrisunsigned long pthreads_thread_id(void) 382280304Sjkim{ 383280304Sjkim unsigned long ret; 38455714Skris 385280304Sjkim ret = (unsigned long)pthread_self(); 386280304Sjkim return (ret); 387280304Sjkim} 38855714Skris 389280304Sjkim#endif /* PTHREADS */ 390