drivers/s390/crypto/zcrypt_pcica.h

   1 /*
   2  *  zcrypt 2.1.0
   3  *
   4  *  Copyright IBM Corp. 2001, 2006
   5  *  Author(s): Robert Burroughs
   6  *             Eric Rossman (edrossma@us.ibm.com)
   7  *
   8  *  Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
   9  *  Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2, or (at your option)
  14  * any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  24  */
  25
  26 #ifndef _ZCRYPT_PCICA_H_
  27 #define _ZCRYPT_PCICA_H_
  28
  29 /**
  30  * The type 4 message family is associated with a PCICA card.
  31  *
  32  * The four members of the family are described below.
  33  *
  34  * Note that all unsigned char arrays are right-justified and left-padded
  35  * with zeroes.
  36  *
  37  * Note that all reserved fields must be zeroes.
  38  */
  39 struct type4_hdr {
  40         unsigned char  reserved1;
  41         unsigned char  msg_type_code;   /* 0x04 */
  42         unsigned short msg_len;
  43         unsigned char  request_code;    /* 0x40 */
  44         unsigned char  msg_fmt;
  45         unsigned short reserved2;
  46 } __attribute__((packed));
  47
  48 #define TYPE4_TYPE_CODE 0x04
  49 #define TYPE4_REQU_CODE 0x40
  50
  51 #define TYPE4_SME_FMT 0x00
  52 #define TYPE4_LME_FMT 0x10
  53 #define TYPE4_SCR_FMT 0x40
  54 #define TYPE4_LCR_FMT 0x50
  55
  56 /* Mod-Exp, with a small modulus */
  57 struct type4_sme {
  58         struct type4_hdr header;
  59         unsigned char    message[128];
  60         unsigned char    exponent[128];
  61         unsigned char    modulus[128];
  62 } __attribute__((packed));
  63
  64 /* Mod-Exp, with a large modulus */
  65 struct type4_lme {
  66         struct type4_hdr header;
  67         unsigned char    message[256];
  68         unsigned char    exponent[256];
  69         unsigned char    modulus[256];
  70 } __attribute__((packed));
  71
  72 /* CRT, with a small modulus */
  73 struct type4_scr {
  74         struct type4_hdr header;
  75         unsigned char    message[128];
  76         unsigned char    dp[72];
  77         unsigned char    dq[64];
  78         unsigned char    p[72];
  79         unsigned char    q[64];
  80         unsigned char    u[72];
  81 } __attribute__((packed));
  82
  83 /* CRT, with a large modulus */
  84 struct type4_lcr {
  85         struct type4_hdr header;
  86         unsigned char    message[256];
  87         unsigned char    dp[136];
  88         unsigned char    dq[128];
  89         unsigned char    p[136];
  90         unsigned char    q[128];
  91         unsigned char    u[136];
  92 } __attribute__((packed));
  93
  94 /**
  95  * The type 84 response family is associated with a PCICA card.
  96  *
  97  * Note that all unsigned char arrays are right-justified and left-padded
  98  * with zeroes.
  99  *
 100  * Note that all reserved fields must be zeroes.
 101  */
 102
 103 struct type84_hdr {
 104         unsigned char  reserved1;
 105         unsigned char  code;
 106         unsigned short len;
 107         unsigned char  reserved2[4];
 108 } __attribute__((packed));
 109
 110 #define TYPE84_RSP_CODE 0x84
 111
 112 int zcrypt_pcica_init(void);
 113 void zcrypt_pcica_exit(void);
 114
 115 #endif /* _ZCRYPT_PCICA_H_ */