arcfour_crypt.c revision 55553f719b521a0bb4deab6efc944cd30c1a56aa
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include "arcfour.h"
#if defined(__amd64)
#ifdef _KERNEL
#include <sys/x86_archext.h>
#else
#endif /* _KERNEL */
#endif /* __amd64 */
#if !defined(__amd64)
/* Initialize the key stream 'key' using the key value */
void
{
/* EXPORT DELETE START */
int i, j;
/* Normalize key length to 256 */
for (i = j = 0; i < 256; i++, j++) {
if (j == keyvallen)
j = 0;
ext_keyval[i] = keyval[j];
}
for (i = 0; i < 256; i++)
j = 0;
for (i = 0; i < 256; i++) {
}
key->i = 0;
key->j = 0;
/* EXPORT DELETE END */
}
/*
* Encipher 'in' using 'key'.
* in and out can point to the same location
*/
void
{
/* EXPORT DELETE START */
/*
* The sun4u has a version of arcfour_crypt_aligned() hand-tuned for
* the cases where the input and output buffers are aligned on
* a multiple of 8-byte boundary.
*/
#ifdef sun4u
int index;
/* Get the 'in' on an 8-byte alignment */
if (index > 0) {
i = key->i;
j = key->j;
i = i + 1;
}
key->i = i;
key->j = j;
}
if (len == 0)
return;
/* See if we're fortunate and 'out' got aligned as well */
#endif /* sun4u */
i = key->i;
j = key->j;
i = i + 1;
}
key->i = i;
key->j = j;
#ifdef sun4u
} else {
}
#endif /* sun4u */
/* EXPORT DELETE END */
}
#else
/*
* Return 1 if executing on Intel, otherwise 0 (e.g., AMD64).
*/
int
arcfour_crypt_on_intel(void)
{
#ifdef _KERNEL
#else
return ((ui & AV_386_AMD_MMX) == 0);
#endif /* _KERNEL */
}
#endif /* !__amd64 */