Gitiles
Code Review Sign In
gerrit-public.fairphone.software / kernel / msm-4.9 / f70e75e11069edfbe55be06960854c46860da0a3 / . / drivers / s390 / crypto / zcrypt_cex2a.h
blob: 8f69d1dacab8a06dcadedde5142f7a5733b35f96 [file] [log] [blame]
Martin Schwidefsky963ed932006-09-20 15:58:29 +0200[diff] [blame]1/*
2 * linux/drivers/s390/crypto/zcrypt_cex2a.h
3 *
Ralph Wuerthner54321142006-09-20 15:58:36 +0200[diff] [blame]4 * zcrypt 2.1.0
Martin Schwidefsky963ed932006-09-20 15:58:29 +0200[diff] [blame]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_CEX2A_H_
29#define _ZCRYPT_CEX2A_H_
30
31/**
32 * The type 50 message family is associated with a CEX2A 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 type50_hdr {
42 unsigned char reserved1;
43 unsigned char msg_type_code; /* 0x50 */
44 unsigned short msg_len;
45 unsigned char reserved2;
46 unsigned char ignored;
47 unsigned short reserved3;
48} __attribute__((packed));
49
50#define TYPE50_TYPE_CODE 0x50
51
52#define TYPE50_MEB1_FMT 0x0001
53#define TYPE50_MEB2_FMT 0x0002
54#define TYPE50_CRB1_FMT 0x0011
55#define TYPE50_CRB2_FMT 0x0012
56
57/* Mod-Exp, with a small modulus */
58struct type50_meb1_msg {
59 struct type50_hdr header;
60 unsigned short keyblock_type; /* 0x0001 */
61 unsigned char reserved[6];
62 unsigned char exponent[128];
63 unsigned char modulus[128];
64 unsigned char message[128];
65} __attribute__((packed));
66
67/* Mod-Exp, with a large modulus */
68struct type50_meb2_msg {
69 struct type50_hdr header;
70 unsigned short keyblock_type; /* 0x0002 */
71 unsigned char reserved[6];
72 unsigned char exponent[256];
73 unsigned char modulus[256];
74 unsigned char message[256];
75} __attribute__((packed));
76
77/* CRT, with a small modulus */
78struct type50_crb1_msg {
79 struct type50_hdr header;
80 unsigned short keyblock_type; /* 0x0011 */
81 unsigned char reserved[6];
82 unsigned char p[64];
83 unsigned char q[64];
84 unsigned char dp[64];
85 unsigned char dq[64];
86 unsigned char u[64];
87 unsigned char message[128];
88} __attribute__((packed));
89
90/* CRT, with a large modulus */
91struct type50_crb2_msg {
92 struct type50_hdr header;
93 unsigned short keyblock_type; /* 0x0012 */
94 unsigned char reserved[6];
95 unsigned char p[128];
96 unsigned char q[128];
97 unsigned char dp[128];
98 unsigned char dq[128];
99 unsigned char u[128];
100 unsigned char message[256];
101} __attribute__((packed));
102
103/**
104 * The type 80 response family is associated with a CEX2A card.
105 *
106 * Note that all unsigned char arrays are right-justified and left-padded
107 * with zeroes.
108 *
109 * Note that all reserved fields must be zeroes.
110 */
111
112#define TYPE80_RSP_CODE 0x80
113
114struct type80_hdr {
115 unsigned char reserved1;
116 unsigned char type; /* 0x80 */
117 unsigned short len;
118 unsigned char code; /* 0x00 */
119 unsigned char reserved2[3];
120 unsigned char reserved3[8];
121} __attribute__((packed));
122
123int zcrypt_cex2a_init(void);
124void zcrypt_cex2a_exit(void);
125
126#endif /* _ZCRYPT_CEX2A_H_ */