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