aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-s390/zcrypt.h
blob: b90e55888a554b271227467b48388c5b462feda9 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
/*
 *  include/asm-s390/zcrypt.h
 *
 *  zcrypt 2.1.0 (user-visible header)
 *
 *  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)
 *
 * 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 __ASM_S390_ZCRYPT_H
#define __ASM_S390_ZCRYPT_H

#define ZCRYPT_VERSION 2
#define ZCRYPT_RELEASE 1
#define ZCRYPT_VARIANT 0

#include <linux/ioctl.h>
#include <linux/compiler.h>

/**
 * struct ica_rsa_modexpo
 *
 * Requirements:
 * - outputdatalength is at least as large as inputdatalength.
 * - All key parts are right justified in their fields, padded on
 *   the left with zeroes.
 * - length(b_key) = inputdatalength
 * - length(n_modulus) = inputdatalength
 */
struct ica_rsa_modexpo {
	char __user *	inputdata;
	unsigned int	inputdatalength;
	char __user *	outputdata;
	unsigned int	outputdatalength;
	char __user *	b_key;
	char __user *	n_modulus;
};

/**
 * struct ica_rsa_modexpo_crt
 *
 * Requirements:
 * - inputdatalength is even.
 * - outputdatalength is at least as large as inputdatalength.
 * - All key parts are right justified in their fields, padded on
 *   the left with zeroes.
 * - length(bp_key)	= inputdatalength/2 + 8
 * - length(bq_key)	= inputdatalength/2
 * - length(np_key)	= inputdatalength/2 + 8
 * - length(nq_key)	= inputdatalength/2
 * - length(u_mult_inv) = inputdatalength/2 + 8
 */
struct ica_rsa_modexpo_crt {
	char __user *	inputdata;
	unsigned int	inputdatalength;
	char __user *	outputdata;
	unsigned int	outputdatalength;
	char __user *	bp_key;
	char __user *	bq_key;
	char __user *	np_prime;
	char __user *	nq_prime;
	char __user *	u_mult_inv;
};

/**
 * CPRBX
 *	  Note that all shorts and ints are big-endian.
 *	  All pointer fields are 16 bytes long, and mean nothing.
 *
 *	  A request CPRB is followed by a request_parameter_block.
 *
 *	  The request (or reply) parameter block is organized thus:
 *	    function code
 *	    VUD block
 *	    key block
 */
struct ica_CPRBX {
	unsigned short	cprb_len;	/* CPRB length	      220	 */
	unsigned char	cprb_ver_id;	/* CPRB version id.   0x02	 */
	unsigned char	pad_000[3];	/* Alignment pad bytes		 */
	unsigned char	func_id[2];	/* function id	      0x5432	 */
	unsigned char	cprb_flags[4];	/* Flags			 */
	unsigned int	req_parml;	/* request parameter buffer len	 */
	unsigned int	req_datal;	/* request data buffer		 */
	unsigned int	rpl_msgbl;	/* reply  message block length	 */
	unsigned int	rpld_parml;	/* replied parameter block len	 */
	unsigned int	rpl_datal;	/* reply data block len		 */
	unsigned int	rpld_datal;	/* replied data block len	 */
	unsigned int	req_extbl;	/* request extension block len	 */
	unsigned char	pad_001[4];	/* reserved			 */
	unsigned int	rpld_extbl;	/* replied extension block len	 */
	unsigned char	padx000[16 - sizeof (char *)];
	unsigned char *	req_parmb;	/* request parm block 'address'	 */
	unsigned char	padx001[16 - sizeof (char *)];
	unsigned char *	req_datab;	/* request data block 'address'	 */
	unsigned char	padx002[16 - sizeof (char *)];
	unsigned char *	rpl_parmb;	/* reply parm block 'address'	 */
	unsigned char	padx003[16 - sizeof (char *)];
	unsigned char *	rpl_datab;	/* reply data block 'address'	 */
	unsigned char	padx004[16 - sizeof (char *)];
	unsigned char *	req_extb;	/* request extension block 'addr'*/
	unsigned char	padx005[16 - sizeof (char *)];
	unsigned char *	rpl_extb;	/* reply extension block 'addres'*/
	unsigned short	ccp_rtcode;	/* server return code		 */
	unsigned short	ccp_rscode;	/* server reason code		 */
	unsigned int	mac_data_len;	/* Mac Data Length		 */
	unsigned char	logon_id[8];	/* Logon Identifier		 */
	unsigned char	mac_value[8];	/* Mac Value			 */
	unsigned char	mac_content_flgs;/* Mac content flag byte	 */
	unsigned char	pad_002;	/* Alignment			 */
	unsigned short	domain;		/* Domain			 */
	unsigned char	usage_domain[4];/* Usage domain			 */
	unsigned char	cntrl_domain[4];/* Control domain		 */
	unsigned char	S390enf_mask[4];/* S/390 enforcement mask	 */
	unsigned char	pad_004[36];	/* reserved			 */
};

/**
 * xcRB
 */
struct ica_xcRB {
	unsigned short	agent_ID;
	unsigned int	user_defined;
	unsigned short	request_ID;
	unsigned int	request_control_blk_length;
	unsigned char	padding1[16 - sizeof (char *)];
	char __user *	request_control_blk_addr;
	unsigned int	request_data_length;
	char		padding2[16 - sizeof (char *)];
	char __user *	request_data_address;
	unsigned int	reply_control_blk_length;
	char		padding3[16 - sizeof (char *)];
	char __user *	reply_control_blk_addr;
	unsigned int	reply_data_length;
	char		padding4[16 - sizeof (char *)];
	char __user *	reply_data_addr;
	unsigned short	priority_window;
	unsigned int	status;
} __attribute__((packed));
#define AUTOSELECT ((unsigned int)0xFFFFFFFF)

#define ZCRYPT_IOCTL_MAGIC 'z'

/**
 * Interface notes:
 *
 * The ioctl()s which are implemented (along with relevant details)
 * are:
 *
 *   ICARSAMODEXPO
 *     Perform an RSA operation using a Modulus-Exponent pair
 *     This takes an ica_rsa_modexpo struct as its arg.
 *
 *     NOTE: please refer to the comments preceding this structure
 *	     for the implementation details for the contents of the
 *	     block
 *
 *   ICARSACRT
 *     Perform an RSA operation using a Chinese-Remainder Theorem key
 *     This takes an ica_rsa_modexpo_crt struct as its arg.
 *
 *     NOTE: please refer to the comments preceding this structure
 *	     for the implementation details for the contents of the
 *	     block
 *
 *   ZSECSENDCPRB
 *     Send an arbitrary CPRB to a crypto card.
 *
 *   Z90STAT_STATUS_MASK
 *     Return an 64 element array of unsigned chars for the status of
 *     all devices.
 *	 0x01: PCICA
 *	 0x02: PCICC
 *	 0x03: PCIXCC_MCL2
 *	 0x04: PCIXCC_MCL3
 *	 0x05: CEX2C
 *	 0x06: CEX2A
 *	 0x0d: device is disabled via the proc filesystem
 *
 *   Z90STAT_QDEPTH_MASK
 *     Return an 64 element array of unsigned chars for the queue
 *     depth of all devices.
 *
 *   Z90STAT_PERDEV_REQCNT
 *     Return an 64 element array of unsigned integers for the number
 *     of successfully completed requests per device since the device
 *     was detected and made available.
 *
 *   Z90STAT_REQUESTQ_COUNT
 *     Return an integer count of the number of entries waiting to be
 *     sent to a device.
 *
 *   Z90STAT_PENDINGQ_COUNT
 *     Return an integer count of the number of entries sent to all
 *     devices awaiting the reply.
 *
 *   Z90STAT_TOTALOPEN_COUNT
 *     Return an integer count of the number of open file handles.
 *
 *   Z90STAT_DOMAIN_INDEX
 *     Return the integer value of the Cryptographic Domain.
 *
 *   The following ioctls are deprecated and should be no longer used:
 *
 *   Z90STAT_TOTALCOUNT
 *     Return an integer count of all device types together.
 *
 *   Z90STAT_PCICACOUNT
 *     Return an integer count of all PCICAs.
 *
 *   Z90STAT_PCICCCOUNT
 *     Return an integer count of all PCICCs.
 *
 *   Z90STAT_PCIXCCMCL2COUNT
 *     Return an integer count of all MCL2 PCIXCCs.
 *
 *   Z90STAT_PCIXCCMCL3COUNT
 *     Return an integer count of all MCL3 PCIXCCs.
 *
 *   Z90STAT_CEX2CCOUNT
 *     Return an integer count of all CEX2Cs.
 *
 *   Z90STAT_CEX2ACOUNT
 *     Return an integer count of all CEX2As.
 *
 *   ICAZ90STATUS
 *     Return some device driver status in a ica_z90_status struct
 *     This takes an ica_z90_status struct as its arg.
 *
 *   Z90STAT_PCIXCCCOUNT
 *     Return an integer count of all PCIXCCs (MCL2 + MCL3).
 *     This is DEPRECATED now that MCL3 PCIXCCs are treated differently from
 *     MCL2 PCIXCCs.
 */

/**
 * Supported ioctl calls
 */
#define ICARSAMODEXPO	_IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x05, 0)
#define ICARSACRT	_IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x06, 0)
#define ZSECSENDCPRB	_IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x81, 0)

/* New status calls */
#define Z90STAT_TOTALCOUNT	_IOR(ZCRYPT_IOCTL_MAGIC, 0x40, int)
#define Z90STAT_PCICACOUNT	_IOR(ZCRYPT_IOCTL_MAGIC, 0x41, int)
#define Z90STAT_PCICCCOUNT	_IOR(ZCRYPT_IOCTL_MAGIC, 0x42, int)
#define Z90STAT_PCIXCCMCL2COUNT	_IOR(ZCRYPT_IOCTL_MAGIC, 0x4b, int)
#define Z90STAT_PCIXCCMCL3COUNT	_IOR(ZCRYPT_IOCTL_MAGIC, 0x4c, int)
#define Z90STAT_CEX2CCOUNT	_IOR(ZCRYPT_IOCTL_MAGIC, 0x4d, int)
#define Z90STAT_CEX2ACOUNT	_IOR(ZCRYPT_IOCTL_MAGIC, 0x4e, int)
#define Z90STAT_REQUESTQ_COUNT	_IOR(ZCRYPT_IOCTL_MAGIC, 0x44, int)
#define Z90STAT_PENDINGQ_COUNT	_IOR(ZCRYPT_IOCTL_MAGIC, 0x45, int)
#define Z90STAT_TOTALOPEN_COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x46, int)
#define Z90STAT_DOMAIN_INDEX	_IOR(ZCRYPT_IOCTL_MAGIC, 0x47, int)
#define Z90STAT_STATUS_MASK	_IOR(ZCRYPT_IOCTL_MAGIC, 0x48, char[64])
#define Z90STAT_QDEPTH_MASK	_IOR(ZCRYPT_IOCTL_MAGIC, 0x49, char[64])
#define Z90STAT_PERDEV_REQCNT	_IOR(ZCRYPT_IOCTL_MAGIC, 0x4a, int[64])

#endif /* __ASM_S390_ZCRYPT_H */