yuzu/externals/libressl/crypto/cryptlib.c

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2020-12-28 19:15:37 +04:00
/* $OpenBSD: cryptlib.c,v 1.45 2019/01/26 11:30:32 deraadt Exp $ */
/* ====================================================================
* Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
/* ====================================================================
* Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
* ECDH support in OpenSSL originally developed by
* SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
*/
#include <pthread.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <syslog.h>
#include <unistd.h>
#include <openssl/opensslconf.h>
#include <openssl/crypto.h>
static void (*locking_callback)(int mode, int type,
const char *file, int line) = NULL;
static int (*add_lock_callback)(int *pointer, int amount,
int type, const char *file, int line) = NULL;
int
CRYPTO_num_locks(void)
{
return 1;
}
unsigned long
(*CRYPTO_get_id_callback(void))(void)
{
return NULL;
}
void
CRYPTO_set_id_callback(unsigned long (*func)(void))
{
return;
}
unsigned long
CRYPTO_thread_id(void)
{
return (unsigned long)pthread_self();
}
void
CRYPTO_set_locking_callback(void (*func)(int mode, int lock_num,
const char *file, int line))
{
locking_callback = func;
}
void
(*CRYPTO_get_locking_callback(void))(int mode, int lock_num,
const char *file, int line)
{
return locking_callback;
}
void
CRYPTO_set_add_lock_callback(int (*func)(int *num, int mount, int lock_num,
const char *file, int line))
{
add_lock_callback = func;
}
int
(*CRYPTO_get_add_lock_callback(void))(int *num, int mount, int type,
const char *file, int line)
{
return add_lock_callback;
}
const char *
CRYPTO_get_lock_name(int lock_num)
{
return "";
}
struct CRYPTO_dynlock_value *
CRYPTO_get_dynlock_value(int i)
{
return NULL;
}
int CRYPTO_get_new_dynlockid(void)
{
return 0;
}
void
CRYPTO_destroy_dynlockid(int i)
{
return;
}
int CRYPTO_get_new_lockid(char *name)
{
return 0;
}
int
CRYPTO_THREADID_set_callback(void (*func)(CRYPTO_THREADID *))
{
return 1;
}
void
(*CRYPTO_THREADID_get_callback(void))(CRYPTO_THREADID *)
{
return NULL;
}
void
CRYPTO_THREADID_set_numeric(CRYPTO_THREADID *id, unsigned long val)
{
return;
}
void
CRYPTO_THREADID_set_pointer(CRYPTO_THREADID *id, void *ptr)
{
return;
}
void
CRYPTO_set_dynlock_create_callback(struct CRYPTO_dynlock_value *(
*dyn_create_function)(const char *file, int line))
{
return;
}
void
CRYPTO_set_dynlock_lock_callback(void (*dyn_lock_function)(
int mode, struct CRYPTO_dynlock_value *l, const char *file, int line))
{
return;
}
void
CRYPTO_set_dynlock_destroy_callback(void (*dyn_destroy_function)(
struct CRYPTO_dynlock_value *l, const char *file, int line))
{
return;
}
struct CRYPTO_dynlock_value *
(*CRYPTO_get_dynlock_create_callback(void))(
const char *file, int line)
{
return NULL;
}
void
(*CRYPTO_get_dynlock_lock_callback(void))(int mode,
struct CRYPTO_dynlock_value *l, const char *file, int line)
{
return NULL;
}
void
(*CRYPTO_get_dynlock_destroy_callback(void))(
struct CRYPTO_dynlock_value *l, const char *file, int line)
{
return NULL;
}
void
CRYPTO_THREADID_current(CRYPTO_THREADID *id)
{
memset(id, 0, sizeof(*id));
id->val = (unsigned long)pthread_self();
}
int
CRYPTO_THREADID_cmp(const CRYPTO_THREADID *a, const CRYPTO_THREADID *b)
{
return memcmp(a, b, sizeof(*a));
}
void
CRYPTO_THREADID_cpy(CRYPTO_THREADID *dest, const CRYPTO_THREADID *src)
{
memcpy(dest, src, sizeof(*src));
}
unsigned long
CRYPTO_THREADID_hash(const CRYPTO_THREADID *id)
{
return id->val;
}
#if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \
defined(__INTEL__) || \
defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
uint64_t OPENSSL_ia32cap_P;
uint64_t
OPENSSL_cpu_caps(void)
{
return OPENSSL_ia32cap_P;
}
#if defined(OPENSSL_CPUID_OBJ) && !defined(OPENSSL_NO_ASM)
#define OPENSSL_CPUID_SETUP
void
OPENSSL_cpuid_setup(void)
{
static int trigger = 0;
uint64_t OPENSSL_ia32_cpuid(void);
if (trigger)
return;
trigger = 1;
OPENSSL_ia32cap_P = OPENSSL_ia32_cpuid();
}
#endif
#else
uint64_t
OPENSSL_cpu_caps(void)
{
return 0;
}
#endif
#if !defined(OPENSSL_CPUID_SETUP) && !defined(OPENSSL_CPUID_OBJ)
void
OPENSSL_cpuid_setup(void)
{
}
#endif
static void
OPENSSL_showfatal(const char *fmta, ...)
{
struct syslog_data sdata = SYSLOG_DATA_INIT;
va_list ap;
va_start(ap, fmta);
vsyslog_r(LOG_INFO|LOG_LOCAL2, &sdata, fmta, ap);
va_end(ap);
}
void
OpenSSLDie(const char *file, int line, const char *assertion)
{
OPENSSL_showfatal(
"uid %u cmd %s %s(%d): OpenSSL internal error, assertion failed: %s\n",
getuid(), getprogname(), file, line, assertion);
_exit(1);
}
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;
}