drivers/staging/vt6655/michael.h

   1 /*
   2  * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
   3  * All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  *
  20  * File: Michael.h
  21  *
  22  * Purpose: Reference implementation for Michael
  23  *          written by Niels Ferguson
  24  *
  25  * Author: Kyle Hsu
  26  *
  27  * Date: Jan 2, 2003
  28  *
  29  */
  30
  31 #ifndef __MICHAEL_H__
  32 #define __MICHAEL_H__
  33
  34 #include <linux/types.h>
  35
  36 /*---------------------  Export Definitions -------------------------*/
  37
  38 /*---------------------  Export Types  ------------------------------*/
  39
  40 void MIC_vInit(u32 dwK0, u32 dwK1);
  41
  42 void MIC_vUnInit(void);
  43
  44 /* Append bytes to the message to be MICed */
  45 void MIC_vAppend(unsigned char *src, unsigned int nBytes);
  46
  47 /* Get the MIC result. Destination should accept 8 bytes of result. */
  48 /* This also resets the message to empty. */
  49 void MIC_vGetMIC(u32 *pdwL, u32 *pdwR);
  50
  51 /*---------------------  Export Macros ------------------------------*/
  52
  53 /* Rotation functions on 32 bit values */
  54 #define ROL32(A, n)                                                     \
  55         (((A) << (n)) | (((A)>>(32-(n)))  & ((1UL << (n)) - 1)))
  56 #define ROR32(A, n) ROL32((A), 32-(n))
  57
  58 #endif /*__MICHAEL_H__ */