LXR linux/drivers/s390/crypto/zcrypt

   1/*
   2 *  linux/drivers/s390/crypto/zcrypt_pcica.h
   3 *
   4 *  zcrypt 2.1.0
   5 *
   6 *  Copyright (C)  2001, 2006 IBM Corporation
   7 *  Author(s): Robert Burroughs
   8 *             Eric Rossman (edrossma@us.ibm.com)
   9 *
  10 *  Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
  11 *  Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
  12 *
  13 * This program is free software; you can redistribute it and/or modify
  14 * it under the terms of the GNU General Public License as published by
  15 * the Free Software Foundation; either version 2, or (at your option)
  16 * any later version.
  17 *
  18 * This program is distributed in the hope that it will be useful,
  19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  21 * GNU General Public License for more details.
  22 *
  23 * You should have received a copy of the GNU General Public License
  24 * along with this program; if not, write to the Free Software
  25 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  26 */
  27
  28#ifndef _ZCRYPT_PCICA_H_
  29#define _ZCRYPT_PCICA_H_
  30
  31/**
  32 * The type 4 message family is associated with a PCICA card.
  33 *
  34 * The four members of the family are described below.
  35 *
  36 * Note that all unsigned char arrays are right-justified and left-padded
  37 * with zeroes.
  38 *
  39 * Note that all reserved fields must be zeroes.
  40 */
  41struct type4_hdr {
  42        unsigned char  reserved1;
  43        unsigned char  msg_type_code;   /* 0x04 */
  44        unsigned short msg_len;
  45        unsigned char  request_code;    /* 0x40 */
  46        unsigned char  msg_fmt;
  47        unsigned short reserved2;
  48} __attribute__((packed));
  49
  50#define TYPE4_TYPE_CODE 0x04
  51#define TYPE4_REQU_CODE 0x40
  52
  53#define TYPE4_SME_FMT 0x00
  54#define TYPE4_LME_FMT 0x10
  55#define TYPE4_SCR_FMT 0x40
  56#define TYPE4_LCR_FMT 0x50
  57
  58/* Mod-Exp, with a small modulus */
  59struct type4_sme {
  60        struct type4_hdr header;
  61        unsigned char    message[128];
  62        unsigned char    exponent[128];
  63        unsigned char    modulus[128];
  64} __attribute__((packed));
  65
  66/* Mod-Exp, with a large modulus */
  67struct type4_lme {
  68        struct type4_hdr header;
  69        unsigned char    message[256];
  70        unsigned char    exponent[256];
  71        unsigned char    modulus[256];
  72} __attribute__((packed));
  73
  74/* CRT, with a small modulus */
  75struct type4_scr {
  76        struct type4_hdr header;
  77        unsigned char    message[128];
  78        unsigned char    dp[72];
  79        unsigned char    dq[64];
  80        unsigned char    p[72];
  81        unsigned char    q[64];
  82        unsigned char    u[72];
  83} __attribute__((packed));
  84
  85/* CRT, with a large modulus */
  86struct type4_lcr {
  87        struct type4_hdr header;
  88        unsigned char    message[256];
  89        unsigned char    dp[136];
  90        unsigned char    dq[128];
  91        unsigned char    p[136];
  92        unsigned char    q[128];
  93        unsigned char    u[136];
  94} __attribute__((packed));
  95
  96/**
  97 * The type 84 response family is associated with a PCICA card.
  98 *
  99 * Note that all unsigned char arrays are right-justified and left-padded
 100 * with zeroes.
 101 *
 102 * Note that all reserved fields must be zeroes.
 103 */
 104
 105struct type84_hdr {
 106        unsigned char  reserved1;
 107        unsigned char  code;
 108        unsigned short len;
 109        unsigned char  reserved2[4];
 110} __attribute__((packed));
 111
 112#define TYPE84_RSP_CODE 0x84
 113
 114int zcrypt_pcica_init(void);
 115void zcrypt_pcica_exit(void);
 116
 117#endif /* _ZCRYPT_PCICA_H_ */
 118