LXR linux/drivers/s390/crypto/zcrypt

   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 */
  39struct 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 */
  57struct 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 */
  65struct 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 */
  73struct 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 */
  84struct 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
 103struct 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
 112int zcrypt_pcica_init(void);
 113void zcrypt_pcica_exit(void);
 114
 115#endif /* _ZCRYPT_PCICA_H_ */
 116