sys/netinet/sctp_sha1.h

   1 /*      $KAME: sctp_sha1.h,v 1.4 2002/10/09 18:01:22 itojun Exp $       */
   2 /*      $DragonFly: src/sys/netinet/sctp_sha1.h,v 1.2 2006/05/20 02:42:12 dillon Exp $  */
   3
   4 #ifndef _NETINET_SCTP_SHA1_H_
   5 #define _NETINET_SCTP_SHA1_H_
   6
   7 /*
   8  * Copyright (c) 2001, 2002, 2004 Cisco Systems, Inc.
   9  * All rights reserved.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  * 3. All advertising materials mentioning features or use of this software
  20  *    must display the following acknowledgement:
  21  *      This product includes software developed by Cisco Systems, Inc.
  22  * 4. Neither the name of the project nor the names of its contributors
  23  *    may be used to endorse or promote products derived from this software
  24  *    without specific prior written permission.
  25  *
  26  * THIS SOFTWARE IS PROVIDED BY CISCO SYSTEMS AND CONTRIBUTORS ``AS IS'' AND
  27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  29  * ARE DISCLAIMED.  IN NO EVENT SHALL CISCO SYSTEMS OR CONTRIBUTORS BE LIABLE
  30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  36  * SUCH DAMAGE.
  37  */
  38 #include <sys/types.h>
  39
  40 struct sha1_context {
  41         unsigned int A;
  42         unsigned int B;
  43         unsigned int C;
  44         unsigned int D;
  45         unsigned int E;
  46         unsigned int H0;
  47         unsigned int H1;
  48         unsigned int H2;
  49         unsigned int H3;
  50         unsigned int H4;
  51         unsigned int words[80];
  52         unsigned int TEMP;
  53         /* block I am collecting to process */
  54         char sha_block[64];
  55         /* collected so far */
  56         int how_many_in_block;
  57         unsigned int running_total;
  58 };
  59
  60
  61 #define F1(B,C,D) (((B & C) | ((~B) & D)))      /*  0  <= t <= 19 */
  62 #define F2(B,C,D) (B ^ C ^ D)                   /*  20 <= t <= 39 */
  63 #define F3(B,C,D) ((B & C) | (B & D) | (C & D)) /*  40 <= t <= 59 */
  64 #define F4(B,C,D) (B ^ C ^ D)                   /* 600 <= t <= 79 */
  65
  66 /* circular shift */
  67 #define CSHIFT(A,B) ((B << A) | (B >> (32-A)))
  68
  69 #define K1 0x5a827999       /* 0  <= t <= 19 */
  70 #define K2 0x6ed9eba1       /* 20 <= t <= 39 */
  71 #define K3 0x8f1bbcdc       /* 40 <= t <= 59 */
  72 #define K4 0xca62c1d6       /* 60 <= t <= 79 */
  73
  74 #define H0INIT 0x67452301
  75 #define H1INIT 0xefcdab89
  76 #define H2INIT 0x98badcfe
  77 #define H3INIT 0x10325476
  78 #define H4INIT 0xc3d2e1f0
  79
  80 #if defined(_KERNEL) || (defined(__APPLE__) && defined(KERNEL))
  81
  82 void SHA1_Init(struct sha1_context *);
  83 void SHA1_Process(struct sha1_context *, unsigned char *, int);
  84 void SHA1_Final(struct sha1_context *, unsigned char *);
  85
  86 #endif /* _KERNEL */
  87 #endif