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