389 lines
11 KiB
C
389 lines
11 KiB
C
/* crypto/threads/th-lock.c */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#ifdef LINUX
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# include <typedefs.h>
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#endif
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#ifdef OPENSSL_SYS_WIN32
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# include <windows.h>
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#endif
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#ifdef SOLARIS
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# include <synch.h>
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# include <thread.h>
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#endif
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#ifdef IRIX
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# include <ulocks.h>
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# include <sys/prctl.h>
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#endif
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#ifdef PTHREADS
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# include <pthread.h>
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#endif
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#include <openssl/lhash.h>
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#include <openssl/crypto.h>
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#include <openssl/buffer.h>
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#include "../../e_os.h"
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#include <openssl/x509.h>
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#include <openssl/ssl.h>
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#include <openssl/err.h>
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void CRYPTO_thread_setup(void);
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void CRYPTO_thread_cleanup(void);
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static void irix_locking_callback(int mode, int type, char *file, int line);
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static void solaris_locking_callback(int mode, int type, char *file,
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int line);
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static void win32_locking_callback(int mode, int type, char *file, int line);
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static void pthreads_locking_callback(int mode, int type, char *file,
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int line);
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static unsigned long irix_thread_id(void);
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static unsigned long solaris_thread_id(void);
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static unsigned long pthreads_thread_id(void);
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/*-
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* usage:
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* CRYPTO_thread_setup();
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* application code
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* CRYPTO_thread_cleanup();
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*/
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#define THREAD_STACK_SIZE (16*1024)
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#ifdef OPENSSL_SYS_WIN32
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static HANDLE *lock_cs;
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void CRYPTO_thread_setup(void)
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{
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int i;
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lock_cs = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(HANDLE));
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if (!lock_cs) {
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/* Nothing we can do about this...void function! */
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return;
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}
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for (i = 0; i < CRYPTO_num_locks(); i++) {
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lock_cs[i] = CreateMutex(NULL, FALSE, NULL);
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}
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CRYPTO_set_locking_callback((void (*)(int, int, char *, int))
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win32_locking_callback);
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/* id callback defined */
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return (1);
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}
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static void CRYPTO_thread_cleanup(void)
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{
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int i;
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CRYPTO_set_locking_callback(NULL);
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for (i = 0; i < CRYPTO_num_locks(); i++)
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CloseHandle(lock_cs[i]);
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OPENSSL_free(lock_cs);
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}
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void win32_locking_callback(int mode, int type, char *file, int line)
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{
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if (mode & CRYPTO_LOCK) {
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WaitForSingleObject(lock_cs[type], INFINITE);
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} else {
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ReleaseMutex(lock_cs[type]);
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}
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}
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#endif /* OPENSSL_SYS_WIN32 */
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#ifdef SOLARIS
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# define USE_MUTEX
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# ifdef USE_MUTEX
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static mutex_t *lock_cs;
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# else
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static rwlock_t *lock_cs;
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# endif
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static long *lock_count;
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void CRYPTO_thread_setup(void)
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{
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int i;
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# ifdef USE_MUTEX
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lock_cs = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(mutex_t));
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# else
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lock_cs = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(rwlock_t));
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# endif
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if (!lock_cs) {
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/* Nothing we can do about this...void function! */
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return;
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}
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lock_count = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long));
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for (i = 0; i < CRYPTO_num_locks(); i++) {
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lock_count[i] = 0;
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# ifdef USE_MUTEX
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mutex_init(&(lock_cs[i]), USYNC_THREAD, NULL);
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# else
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rwlock_init(&(lock_cs[i]), USYNC_THREAD, NULL);
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# endif
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}
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CRYPTO_set_id_callback((unsigned long (*)())solaris_thread_id);
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CRYPTO_set_locking_callback((void (*)())solaris_locking_callback);
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}
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void CRYPTO_thread_cleanup(void)
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{
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int i;
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CRYPTO_set_locking_callback(NULL);
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for (i = 0; i < CRYPTO_num_locks(); i++) {
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# ifdef USE_MUTEX
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mutex_destroy(&(lock_cs[i]));
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# else
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rwlock_destroy(&(lock_cs[i]));
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# endif
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}
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OPENSSL_free(lock_cs);
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OPENSSL_free(lock_count);
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}
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void solaris_locking_callback(int mode, int type, char *file, int line)
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{
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# if 0
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fprintf(stderr, "thread=%4d mode=%s lock=%s %s:%d\n",
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CRYPTO_thread_id(),
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(mode & CRYPTO_LOCK) ? "l" : "u",
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(type & CRYPTO_READ) ? "r" : "w", file, line);
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# endif
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# if 0
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if (CRYPTO_LOCK_SSL_CERT == type)
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fprintf(stderr, "(t,m,f,l) %ld %d %s %d\n",
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CRYPTO_thread_id(), mode, file, line);
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# endif
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if (mode & CRYPTO_LOCK) {
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# ifdef USE_MUTEX
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mutex_lock(&(lock_cs[type]));
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# else
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if (mode & CRYPTO_READ)
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rw_rdlock(&(lock_cs[type]));
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else
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rw_wrlock(&(lock_cs[type]));
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# endif
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lock_count[type]++;
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} else {
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# ifdef USE_MUTEX
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mutex_unlock(&(lock_cs[type]));
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# else
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rw_unlock(&(lock_cs[type]));
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# endif
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}
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}
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unsigned long solaris_thread_id(void)
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{
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unsigned long ret;
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ret = (unsigned long)thr_self();
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return (ret);
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}
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#endif /* SOLARIS */
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#ifdef IRIX
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/* I don't think this works..... */
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static usptr_t *arena;
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static usema_t **lock_cs;
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void CRYPTO_thread_setup(void)
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{
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int i;
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char filename[20];
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lock_cs = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(usema_t *));
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if (!lock_cs) {
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/* Nothing we can do about this...void function! */
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return;
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}
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strcpy(filename, "/tmp/mttest.XXXXXX");
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mktemp(filename);
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usconfig(CONF_STHREADIOOFF);
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usconfig(CONF_STHREADMALLOCOFF);
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usconfig(CONF_INITUSERS, 100);
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usconfig(CONF_LOCKTYPE, US_DEBUGPLUS);
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arena = usinit(filename);
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unlink(filename);
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for (i = 0; i < CRYPTO_num_locks(); i++) {
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lock_cs[i] = usnewsema(arena, 1);
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}
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CRYPTO_set_id_callback((unsigned long (*)())irix_thread_id);
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CRYPTO_set_locking_callback((void (*)())irix_locking_callback);
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}
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void CRYPTO_thread_cleanup(void)
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{
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int i;
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CRYPTO_set_locking_callback(NULL);
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for (i = 0; i < CRYPTO_num_locks(); i++) {
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char buf[10];
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sprintf(buf, "%2d:", i);
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usdumpsema(lock_cs[i], stdout, buf);
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usfreesema(lock_cs[i], arena);
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}
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OPENSSL_free(lock_cs);
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}
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void irix_locking_callback(int mode, int type, char *file, int line)
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{
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if (mode & CRYPTO_LOCK) {
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uspsema(lock_cs[type]);
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} else {
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usvsema(lock_cs[type]);
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}
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}
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unsigned long irix_thread_id(void)
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{
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unsigned long ret;
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ret = (unsigned long)getpid();
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return (ret);
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}
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#endif /* IRIX */
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/* Linux and a few others */
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#ifdef PTHREADS
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static pthread_mutex_t *lock_cs;
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static long *lock_count;
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void CRYPTO_thread_setup(void)
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{
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int i;
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lock_cs = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(pthread_mutex_t));
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lock_count = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long));
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if (!lock_cs || !lock_count) {
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/* Nothing we can do about this...void function! */
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if (lock_cs)
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OPENSSL_free(lock_cs);
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if (lock_count)
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OPENSSL_free(lock_count);
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return;
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}
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for (i = 0; i < CRYPTO_num_locks(); i++) {
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lock_count[i] = 0;
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pthread_mutex_init(&(lock_cs[i]), NULL);
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}
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CRYPTO_set_id_callback((unsigned long (*)())pthreads_thread_id);
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CRYPTO_set_locking_callback((void (*)())pthreads_locking_callback);
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}
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void thread_cleanup(void)
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{
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int i;
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CRYPTO_set_locking_callback(NULL);
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for (i = 0; i < CRYPTO_num_locks(); i++) {
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pthread_mutex_destroy(&(lock_cs[i]));
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}
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OPENSSL_free(lock_cs);
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OPENSSL_free(lock_count);
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}
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void pthreads_locking_callback(int mode, int type, char *file, int line)
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{
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# if 0
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fprintf(stderr, "thread=%4d mode=%s lock=%s %s:%d\n",
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CRYPTO_thread_id(),
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(mode & CRYPTO_LOCK) ? "l" : "u",
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(type & CRYPTO_READ) ? "r" : "w", file, line);
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# endif
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# if 0
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if (CRYPTO_LOCK_SSL_CERT == type)
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fprintf(stderr, "(t,m,f,l) %ld %d %s %d\n",
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CRYPTO_thread_id(), mode, file, line);
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# endif
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if (mode & CRYPTO_LOCK) {
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pthread_mutex_lock(&(lock_cs[type]));
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lock_count[type]++;
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} else {
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pthread_mutex_unlock(&(lock_cs[type]));
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}
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}
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unsigned long pthreads_thread_id(void)
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{
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unsigned long ret;
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ret = (unsigned long)pthread_self();
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return (ret);
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}
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#endif /* PTHREADS */
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