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/*
* linux/drivers/s390/crypto/zcrypt_cex2a.h
*
* zcrypt 2.1.0
*
* Copyright (C) 2001, 2006 IBM Corporation
* Author(s): Robert Burroughs
* Eric Rossman (edrossma@us.ibm.com)
*
* Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
* Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _ZCRYPT_CEX2A_H_
#define _ZCRYPT_CEX2A_H_
/**
* The type 50 message family is associated with a CEX2A card.
*
* The four members of the family are described below.
*
* Note that all unsigned char arrays are right-justified and left-padded
* with zeroes.
*
* Note that all reserved fields must be zeroes.
*/
struct type50_hdr {
unsigned char reserved1;
unsigned char msg_type_code; /* 0x50 */
unsigned short msg_len;
unsigned char reserved2;
unsigned char ignored;
unsigned short reserved3;
} __attribute__((packed));
#define TYPE50_TYPE_CODE 0x50
#define TYPE50_MEB1_FMT 0x0001
#define TYPE50_MEB2_FMT 0x0002
#define TYPE50_MEB3_FMT 0x0003
#define TYPE50_CRB1_FMT 0x0011
#define TYPE50_CRB2_FMT 0x0012
#define TYPE50_CRB3_FMT 0x0013
/* Mod-Exp, with a small modulus */
struct type50_meb1_msg {
struct type50_hdr header;
unsigned short keyblock_type; /* 0x0001 */
unsigned char reserved[6];
unsigned char exponent[128];
unsigned char modulus[128];
unsigned char message[128];
} __attribute__((packed));
/* Mod-Exp, with a large modulus */
struct type50_meb2_msg {
struct type50_hdr header;
unsigned short keyblock_type; /* 0x0002 */
unsigned char reserved[6];
unsigned char exponent[256];
unsigned char modulus[256];
unsigned char message[256];
} __attribute__((packed));
/* Mod-Exp, with a larger modulus */
struct type50_meb3_msg {
struct type50_hdr header;
unsigned short keyblock_type; /* 0x0003 */
unsigned char reserved[6];
unsigned char exponent[512];
unsigned char modulus[512];
unsigned char message[512];
} __attribute__((packed));
/* CRT, with a small modulus */
struct type50_crb1_msg {
struct type50_hdr header;
unsigned short keyblock_type; /* 0x0011 */
unsigned char reserved[6];
unsigned char p[64];
unsigned char q[64];
unsigned char dp[64];
unsigned char dq[64];
unsigned char u[64];
unsigned char message[128];
} __attribute__((packed));
/* CRT, with a large modulus */
struct type50_crb2_msg {
struct type50_hdr header;
unsigned short keyblock_type; /* 0x0012 */
unsigned char reserved[6];
unsigned char p[128];
unsigned char q[128];
unsigned char dp[128];
unsigned char dq[128];
unsigned char u[128];
unsigned char message[256];
} __attribute__((packed));
/* CRT, with a larger modulus */
struct type50_crb3_msg {
struct type50_hdr header;
unsigned short keyblock_type; /* 0x0013 */
unsigned char reserved[6];
unsigned char p[256];
unsigned char q[256];
unsigned char dp[256];
unsigned char dq[256];
unsigned char u[256];
unsigned char message[512];
} __attribute__((packed));
/**
* The type 80 response family is associated with a CEX2A card.
*
* Note that all unsigned char arrays are right-justified and left-padded
* with zeroes.
*
* Note that all reserved fields must be zeroes.
*/
#define TYPE80_RSP_CODE 0x80
struct type80_hdr {
unsigned char reserved1;
unsigned char type; /* 0x80 */
unsigned short len;
unsigned char code; /* 0x00 */
unsigned char reserved2[3];
unsigned char reserved3[8];
} __attribute__((packed));
int zcrypt_cex2a_init(void);
void zcrypt_cex2a_exit(void);
#endif /* _ZCRYPT_CEX2A_H_ */
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