607 lines
19 KiB
C
607 lines
19 KiB
C
/* crypto/cryptlib.c */
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/* ====================================================================
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* Copyright (c) 1998-2003 The OpenSSL Project. All rights reserved.
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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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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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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
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@openssl.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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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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/* ====================================================================
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* Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
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* ECDH support in OpenSSL originally developed by
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* SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
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*/
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#include "cryptlib.h"
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#include <openssl/safestack.h>
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#if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16)
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static double SSLeay_MSVC5_hack = 0.0; /* and for VC1.5 */
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#endif
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static void (MS_FAR *locking_callback) (int mode, int type,
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const char *file, int line) = NULL;
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static int (MS_FAR *add_lock_callback) (int *pointer, int amount,
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int type, const char *file,
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int line) = NULL;
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static unsigned long (MS_FAR *id_callback) (void) = NULL;
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int CRYPTO_num_locks(void)
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{
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return CRYPTO_NUM_LOCKS;
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}
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void (*CRYPTO_get_locking_callback(void)) (int mode, int type,
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const char *file, int line) {
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return (locking_callback);
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}
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int (*CRYPTO_get_add_lock_callback(void)) (int *num, int mount, int type,
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const char *file, int line) {
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return (add_lock_callback);
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}
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void CRYPTO_set_locking_callback(void (*func) (int mode, int type,
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const char *file, int line))
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{
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locking_callback = func;
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}
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void CRYPTO_set_add_lock_callback(int (*func) (int *num, int mount, int type,
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const char *file, int line))
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{
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add_lock_callback = func;
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}
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unsigned long (*CRYPTO_get_id_callback(void)) (void) {
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return (id_callback);
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}
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void CRYPTO_set_id_callback(unsigned long (*func) (void))
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{
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id_callback = func;
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}
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unsigned long CRYPTO_thread_id(void)
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{
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unsigned long ret = 0;
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if (id_callback == NULL) {
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#ifdef OPENSSL_SYS_WIN16
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ret = (unsigned long)GetCurrentTask();
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#elif defined(OPENSSL_SYS_WIN32)
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ret = (unsigned long)GetCurrentThreadId();
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#elif defined(GETPID_IS_MEANINGLESS)
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ret = 1L;
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#else
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ret = (unsigned long)getpid();
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#endif
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} else
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ret = id_callback();
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return (ret);
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}
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static void (*do_dynlock_cb) (int mode, int type, const char *file, int line);
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void int_CRYPTO_set_do_dynlock_callback(void (*dyn_cb)
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(int mode, int type,
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const char *file, int line))
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{
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do_dynlock_cb = dyn_cb;
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}
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void CRYPTO_lock(int mode, int type, const char *file, int line)
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{
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#ifdef LOCK_DEBUG
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{
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char *rw_text, *operation_text;
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if (mode & CRYPTO_LOCK)
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operation_text = "lock ";
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else if (mode & CRYPTO_UNLOCK)
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operation_text = "unlock";
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else
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operation_text = "ERROR ";
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if (mode & CRYPTO_READ)
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rw_text = "r";
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else if (mode & CRYPTO_WRITE)
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rw_text = "w";
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else
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rw_text = "ERROR";
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fprintf(stderr, "lock:%08lx:(%s)%s %-18s %s:%d\n",
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CRYPTO_thread_id(), rw_text, operation_text,
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CRYPTO_get_lock_name(type), file, line);
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}
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#endif
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if (type < 0) {
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if (do_dynlock_cb)
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do_dynlock_cb(mode, type, file, line);
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} else if (locking_callback != NULL)
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locking_callback(mode, type, file, line);
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}
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int CRYPTO_add_lock(int *pointer, int amount, int type, const char *file,
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int line)
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{
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int ret = 0;
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if (add_lock_callback != NULL) {
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#ifdef LOCK_DEBUG
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int before = *pointer;
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#endif
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ret = add_lock_callback(pointer, amount, type, file, line);
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#ifdef LOCK_DEBUG
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fprintf(stderr, "ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n",
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CRYPTO_thread_id(),
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before, amount, ret, CRYPTO_get_lock_name(type), file, line);
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#endif
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} else {
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CRYPTO_lock(CRYPTO_LOCK | CRYPTO_WRITE, type, file, line);
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ret = *pointer + amount;
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#ifdef LOCK_DEBUG
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fprintf(stderr, "ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n",
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CRYPTO_thread_id(),
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*pointer, amount, ret,
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CRYPTO_get_lock_name(type), file, line);
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#endif
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*pointer = ret;
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CRYPTO_lock(CRYPTO_UNLOCK | CRYPTO_WRITE, type, file, line);
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}
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return (ret);
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}
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#if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \
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defined(__INTEL__) || \
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defined(__x86_64) || defined(__x86_64__) || \
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defined(_M_AMD64) || defined(_M_X64)
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unsigned long OPENSSL_ia32cap_P = 0;
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unsigned long *OPENSSL_ia32cap_loc(void)
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{
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return &OPENSSL_ia32cap_P;
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}
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# if defined(OPENSSL_CPUID_OBJ) && !defined(OPENSSL_NO_ASM) && !defined(I386_ONLY)
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# define OPENSSL_CPUID_SETUP
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void OPENSSL_cpuid_setup(void)
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{
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static int trigger = 0;
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unsigned long OPENSSL_ia32_cpuid(void);
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char *env;
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if (trigger)
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return;
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trigger = 1;
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if ((env = getenv("OPENSSL_ia32cap")))
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OPENSSL_ia32cap_P = strtoul(env, NULL, 0) | (1 << 10);
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else
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OPENSSL_ia32cap_P = OPENSSL_ia32_cpuid() | (1 << 10);
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/*
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* |(1<<10) sets a reserved bit to signal that variable
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* was initialized already... This is to avoid interference
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* with cpuid snippets in ELF .init segment.
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*/
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}
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# endif
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#else
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unsigned long *OPENSSL_ia32cap_loc(void)
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{
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return NULL;
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}
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#endif
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int OPENSSL_NONPIC_relocated = 0;
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#if !defined(OPENSSL_CPUID_SETUP)
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void OPENSSL_cpuid_setup(void)
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{
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}
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#endif
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#if (defined(_WIN32) || defined(__CYGWIN__)) && defined(_WINDLL)
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# ifdef OPENSSL_FIPS
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# include <tlhelp32.h>
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# if defined(__GNUC__) && __GNUC__>=2
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static int DllInit(void) __attribute__ ((constructor));
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# elif defined(_MSC_VER)
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static int DllInit(void);
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# ifdef _WIN64
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# pragma section(".CRT$XCU",read)
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__declspec(allocate(".CRT$XCU"))
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# else
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# pragma data_seg(".CRT$XCU")
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# endif
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static int (*p) (void) = DllInit;
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# pragma data_seg()
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# endif
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static int DllInit(void)
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{
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# if defined(_WIN32_WINNT)
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union {
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int (*f) (void);
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BYTE *p;
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} t = {
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DllInit
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};
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HANDLE hModuleSnap = INVALID_HANDLE_VALUE;
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IMAGE_DOS_HEADER *dos_header;
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IMAGE_NT_HEADERS *nt_headers;
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MODULEENTRY32 me32 = { sizeof(me32) };
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hModuleSnap = CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, 0);
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if (hModuleSnap != INVALID_HANDLE_VALUE &&
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Module32First(hModuleSnap, &me32))
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do {
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if (t.p >= me32.modBaseAddr &&
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t.p < me32.modBaseAddr + me32.modBaseSize) {
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dos_header = (IMAGE_DOS_HEADER *) me32.modBaseAddr;
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if (dos_header->e_magic == IMAGE_DOS_SIGNATURE) {
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nt_headers = (IMAGE_NT_HEADERS *)
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((BYTE *) dos_header + dos_header->e_lfanew);
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if (nt_headers->Signature == IMAGE_NT_SIGNATURE &&
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me32.modBaseAddr !=
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(BYTE *) nt_headers->OptionalHeader.ImageBase)
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OPENSSL_NONPIC_relocated = 1;
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}
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break;
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}
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} while (Module32Next(hModuleSnap, &me32));
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if (hModuleSnap != INVALID_HANDLE_VALUE)
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CloseHandle(hModuleSnap);
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# endif
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OPENSSL_cpuid_setup();
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return 0;
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}
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# else
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# ifdef __CYGWIN__
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/* pick DLL_[PROCESS|THREAD]_[ATTACH|DETACH] definitions */
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# include <windows.h>
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# endif
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/*
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* All we really need to do is remove the 'error' state when a thread
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* detaches
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*/
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BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
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{
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switch (fdwReason) {
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case DLL_PROCESS_ATTACH:
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OPENSSL_cpuid_setup();
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# if defined(_WIN32_WINNT)
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{
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IMAGE_DOS_HEADER *dos_header = (IMAGE_DOS_HEADER *) hinstDLL;
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IMAGE_NT_HEADERS *nt_headers;
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if (dos_header->e_magic == IMAGE_DOS_SIGNATURE) {
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nt_headers = (IMAGE_NT_HEADERS *) ((char *)dos_header
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+ dos_header->e_lfanew);
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if (nt_headers->Signature == IMAGE_NT_SIGNATURE &&
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hinstDLL !=
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(HINSTANCE) (nt_headers->OptionalHeader.ImageBase))
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OPENSSL_NONPIC_relocated = 1;
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}
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}
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# endif
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break;
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case DLL_THREAD_ATTACH:
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break;
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case DLL_THREAD_DETACH:
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break;
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case DLL_PROCESS_DETACH:
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break;
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}
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return (TRUE);
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}
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# endif
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#endif
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#if defined(_WIN32) && !defined(__CYGWIN__)
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# include <tchar.h>
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# if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
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int OPENSSL_isservice(void)
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{
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HWINSTA h;
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DWORD len;
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WCHAR *name;
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(void)GetDesktopWindow(); /* return value is ignored */
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h = GetProcessWindowStation();
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if (h == NULL)
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return -1;
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if (GetUserObjectInformationW(h, UOI_NAME, NULL, 0, &len) ||
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GetLastError() != ERROR_INSUFFICIENT_BUFFER)
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return -1;
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if (len > 512)
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return -1; /* paranoia */
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len++, len &= ~1; /* paranoia */
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# ifdef _MSC_VER
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name = (WCHAR *)_alloca(len + sizeof(WCHAR));
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# else
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name = (WCHAR *)alloca(len + sizeof(WCHAR));
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# endif
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if (!GetUserObjectInformationW(h, UOI_NAME, name, len, &len))
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return -1;
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len++, len &= ~1; /* paranoia */
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name[len / sizeof(WCHAR)] = L'\0'; /* paranoia */
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# if 1
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/*
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* This doesn't cover "interactive" services [working with real
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* WinSta0's] nor programs started non-interactively by Task Scheduler
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* [those are working with SAWinSta].
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*/
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if (wcsstr(name, L"Service-0x"))
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return 1;
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# else
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/* This covers all non-interactive programs such as services. */
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if (!wcsstr(name, L"WinSta0"))
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return 1;
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# endif
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else
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return 0;
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}
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# else
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int OPENSSL_isservice(void)
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{
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return 0;
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}
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# endif
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void OPENSSL_showfatal(const char *fmta, ...)
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{
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va_list ap;
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TCHAR buf[256];
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const TCHAR *fmt;
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# ifdef STD_ERROR_HANDLE /* what a dirty trick! */
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HANDLE h;
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if ((h = GetStdHandle(STD_ERROR_HANDLE)) != NULL &&
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GetFileType(h) != FILE_TYPE_UNKNOWN) {
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/* must be console application */
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va_start(ap, fmta);
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vfprintf(stderr, fmta, ap);
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va_end(ap);
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return;
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}
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# endif
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if (sizeof(TCHAR) == sizeof(char))
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fmt = (const TCHAR *)fmta;
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else
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do {
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int keepgoing;
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size_t len_0 = strlen(fmta) + 1, i;
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WCHAR *fmtw;
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# ifdef _MSC_VER
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fmtw = (WCHAR *)_alloca(len_0 * sizeof(WCHAR));
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# else
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fmtw = (WCHAR *)alloca(len_0 * sizeof(WCHAR));
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# endif
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if (fmtw == NULL) {
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fmt = (const TCHAR *)L"no stack?";
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break;
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}
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# ifndef OPENSSL_NO_MULTIBYTE
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if (!MultiByteToWideChar(CP_ACP, 0, fmta, len_0, fmtw, len_0))
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# endif
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for (i = 0; i < len_0; i++)
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|
fmtw[i] = (WCHAR)fmta[i];
|
|
|
|
for (i = 0; i < len_0; i++) {
|
|
if (fmtw[i] == L'%')
|
|
do {
|
|
keepgoing = 0;
|
|
switch (fmtw[i + 1]) {
|
|
case L'0':
|
|
case L'1':
|
|
case L'2':
|
|
case L'3':
|
|
case L'4':
|
|
case L'5':
|
|
case L'6':
|
|
case L'7':
|
|
case L'8':
|
|
case L'9':
|
|
case L'.':
|
|
case L'*':
|
|
case L'-':
|
|
i++;
|
|
keepgoing = 1;
|
|
break;
|
|
case L's':
|
|
fmtw[i + 1] = L'S';
|
|
break;
|
|
case L'S':
|
|
fmtw[i + 1] = L's';
|
|
break;
|
|
case L'c':
|
|
fmtw[i + 1] = L'C';
|
|
break;
|
|
case L'C':
|
|
fmtw[i + 1] = L'c';
|
|
break;
|
|
}
|
|
} while (keepgoing);
|
|
}
|
|
fmt = (const TCHAR *)fmtw;
|
|
} while (0);
|
|
|
|
va_start(ap, fmta);
|
|
_vsntprintf(buf, sizeof(buf) / sizeof(TCHAR) - 1, fmt, ap);
|
|
buf[sizeof(buf) / sizeof(TCHAR) - 1] = _T('\0');
|
|
va_end(ap);
|
|
|
|
# if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
|
|
/* this -------------v--- guards NT-specific calls */
|
|
if (check_winnt() && OPENSSL_isservice() > 0) {
|
|
HANDLE h = RegisterEventSource(0, _T("OPENSSL"));
|
|
const TCHAR *pmsg = buf;
|
|
ReportEvent(h, EVENTLOG_ERROR_TYPE, 0, 0, 0, 1, 0, &pmsg, 0);
|
|
DeregisterEventSource(h);
|
|
} else
|
|
# endif
|
|
MessageBox(NULL, buf, _T("OpenSSL: FATAL"), MB_OK | MB_ICONSTOP);
|
|
}
|
|
#else
|
|
void OPENSSL_showfatal(const char *fmta, ...)
|
|
{
|
|
va_list ap;
|
|
|
|
va_start(ap, fmta);
|
|
vfprintf(stderr, fmta, ap);
|
|
va_end(ap);
|
|
}
|
|
|
|
int OPENSSL_isservice(void)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
void OpenSSLDie(const char *file, int line, const char *assertion)
|
|
{
|
|
OPENSSL_showfatal
|
|
("%s(%d): OpenSSL internal error, assertion failed: %s\n", file, line,
|
|
assertion);
|
|
abort();
|
|
}
|
|
|
|
void *OPENSSL_stderr(void)
|
|
{
|
|
return stderr;
|
|
}
|
|
|
|
#ifndef OPENSSL_FIPS
|
|
|
|
int CRYPTO_memcmp(const void *in_a, const void *in_b, size_t len)
|
|
{
|
|
size_t i;
|
|
const unsigned char *a = in_a;
|
|
const unsigned char *b = in_b;
|
|
unsigned char x = 0;
|
|
|
|
for (i = 0; i < len; i++)
|
|
x |= a[i] ^ b[i];
|
|
|
|
return x;
|
|
}
|
|
#endif
|