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1/*
2 * include/asm-s390/zcrypt.h
3 *
4 * zcrypt 2.1.0 (user-visible header)
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 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2, or (at your option)
15 * any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 */
26
27#ifndef __ASM_S390_ZCRYPT_H
28#define __ASM_S390_ZCRYPT_H
29
30#define ZCRYPT_VERSION 2
31#define ZCRYPT_RELEASE 1
32#define ZCRYPT_VARIANT 1
33
34#include <linux/ioctl.h>
35#include <linux/compiler.h>
36
37/**
38 * struct ica_rsa_modexpo
39 *
40 * Requirements:
41 * - outputdatalength is at least as large as inputdatalength.
42 * - All key parts are right justified in their fields, padded on
43 * the left with zeroes.
44 * - length(b_key) = inputdatalength
45 * - length(n_modulus) = inputdatalength
46 */
47struct ica_rsa_modexpo {
48 char __user * inputdata;
49 unsigned int inputdatalength;
50 char __user * outputdata;
51 unsigned int outputdatalength;
52 char __user * b_key;
53 char __user * n_modulus;
54};
55
56/**
57 * struct ica_rsa_modexpo_crt
58 *
59 * Requirements:
60 * - inputdatalength is even.
61 * - outputdatalength is at least as large as inputdatalength.
62 * - All key parts are right justified in their fields, padded on
63 * the left with zeroes.
64 * - length(bp_key) = inputdatalength/2 + 8
65 * - length(bq_key) = inputdatalength/2
66 * - length(np_key) = inputdatalength/2 + 8
67 * - length(nq_key) = inputdatalength/2
68 * - length(u_mult_inv) = inputdatalength/2 + 8
69 */
70struct ica_rsa_modexpo_crt {
71 char __user * inputdata;
72 unsigned int inputdatalength;
73 char __user * outputdata;
74 unsigned int outputdatalength;
75 char __user * bp_key;
76 char __user * bq_key;
77 char __user * np_prime;
78 char __user * nq_prime;
79 char __user * u_mult_inv;
80};
81
82/**
83 * CPRBX
84 * Note that all shorts and ints are big-endian.
85 * All pointer fields are 16 bytes long, and mean nothing.
86 *
87 * A request CPRB is followed by a request_parameter_block.
88 *
89 * The request (or reply) parameter block is organized thus:
90 * function code
91 * VUD block
92 * key block
93 */
94struct CPRBX {
95 unsigned short cprb_len; /* CPRB length 220 */
96 unsigned char cprb_ver_id; /* CPRB version id. 0x02 */
97 unsigned char pad_000[3]; /* Alignment pad bytes */
98 unsigned char func_id[2]; /* function id 0x5432 */
99 unsigned char cprb_flags[4]; /* Flags */
100 unsigned int req_parml; /* request parameter buffer len */
101 unsigned int req_datal; /* request data buffer */
102 unsigned int rpl_msgbl; /* reply message block length */
103 unsigned int rpld_parml; /* replied parameter block len */
104 unsigned int rpl_datal; /* reply data block len */
105 unsigned int rpld_datal; /* replied data block len */
106 unsigned int req_extbl; /* request extension block len */
107 unsigned char pad_001[4]; /* reserved */
108 unsigned int rpld_extbl; /* replied extension block len */
109 unsigned char padx000[16 - sizeof (char *)];
110 unsigned char * req_parmb; /* request parm block 'address' */
111 unsigned char padx001[16 - sizeof (char *)];
112 unsigned char * req_datab; /* request data block 'address' */
113 unsigned char padx002[16 - sizeof (char *)];
114 unsigned char * rpl_parmb; /* reply parm block 'address' */
115 unsigned char padx003[16 - sizeof (char *)];
116 unsigned char * rpl_datab; /* reply data block 'address' */
117 unsigned char padx004[16 - sizeof (char *)];
118 unsigned char * req_extb; /* request extension block 'addr'*/
119 unsigned char padx005[16 - sizeof (char *)];
120 unsigned char * rpl_extb; /* reply extension block 'address'*/
121 unsigned short ccp_rtcode; /* server return code */
122 unsigned short ccp_rscode; /* server reason code */
123 unsigned int mac_data_len; /* Mac Data Length */
124 unsigned char logon_id[8]; /* Logon Identifier */
125 unsigned char mac_value[8]; /* Mac Value */
126 unsigned char mac_content_flgs;/* Mac content flag byte */
127 unsigned char pad_002; /* Alignment */
128 unsigned short domain; /* Domain */
129 unsigned char usage_domain[4];/* Usage domain */
130 unsigned char cntrl_domain[4];/* Control domain */
131 unsigned char S390enf_mask[4];/* S/390 enforcement mask */
132 unsigned char pad_004[36]; /* reserved */
133} __attribute__((packed));
134
135/**
136 * xcRB
137 */
138struct ica_xcRB {
139 unsigned short agent_ID;
140 unsigned int user_defined;
141 unsigned short request_ID;
142 unsigned int request_control_blk_length;
143 unsigned char padding1[16 - sizeof (char *)];
144 char __user * request_control_blk_addr;
145 unsigned int request_data_length;
146 char padding2[16 - sizeof (char *)];
147 char __user * request_data_address;
148 unsigned int reply_control_blk_length;
149 char padding3[16 - sizeof (char *)];
150 char __user * reply_control_blk_addr;
151 unsigned int reply_data_length;
152 char padding4[16 - sizeof (char *)];
153 char __user * reply_data_addr;
154 unsigned short priority_window;
155 unsigned int status;
156} __attribute__((packed));
157#define AUTOSELECT ((unsigned int)0xFFFFFFFF)
158
159#define ZCRYPT_IOCTL_MAGIC 'z'
160
161/**
162 * Interface notes:
163 *
164 * The ioctl()s which are implemented (along with relevant details)
165 * are:
166 *
167 * ICARSAMODEXPO
168 * Perform an RSA operation using a Modulus-Exponent pair
169 * This takes an ica_rsa_modexpo struct as its arg.
170 *
171 * NOTE: please refer to the comments preceding this structure
172 * for the implementation details for the contents of the
173 * block
174 *
175 * ICARSACRT
176 * Perform an RSA operation using a Chinese-Remainder Theorem key
177 * This takes an ica_rsa_modexpo_crt struct as its arg.
178 *
179 * NOTE: please refer to the comments preceding this structure
180 * for the implementation details for the contents of the
181 * block
182 *
183 * ZSECSENDCPRB
184 * Send an arbitrary CPRB to a crypto card.
185 *
186 * Z90STAT_STATUS_MASK
187 * Return an 64 element array of unsigned chars for the status of
188 * all devices.
189 * 0x01: PCICA
190 * 0x02: PCICC
191 * 0x03: PCIXCC_MCL2
192 * 0x04: PCIXCC_MCL3
193 * 0x05: CEX2C
194 * 0x06: CEX2A
195 * 0x0d: device is disabled via the proc filesystem
196 *
197 * Z90STAT_QDEPTH_MASK
198 * Return an 64 element array of unsigned chars for the queue
199 * depth of all devices.
200 *
201 * Z90STAT_PERDEV_REQCNT
202 * Return an 64 element array of unsigned integers for the number
203 * of successfully completed requests per device since the device
204 * was detected and made available.
205 *
206 * Z90STAT_REQUESTQ_COUNT
207 * Return an integer count of the number of entries waiting to be
208 * sent to a device.
209 *
210 * Z90STAT_PENDINGQ_COUNT
211 * Return an integer count of the number of entries sent to all
212 * devices awaiting the reply.
213 *
214 * Z90STAT_TOTALOPEN_COUNT
215 * Return an integer count of the number of open file handles.
216 *
217 * Z90STAT_DOMAIN_INDEX
218 * Return the integer value of the Cryptographic Domain.
219 *
220 * The following ioctls are deprecated and should be no longer used:
221 *
222 * Z90STAT_TOTALCOUNT
223 * Return an integer count of all device types together.
224 *
225 * Z90STAT_PCICACOUNT
226 * Return an integer count of all PCICAs.
227 *
228 * Z90STAT_PCICCCOUNT
229 * Return an integer count of all PCICCs.
230 *
231 * Z90STAT_PCIXCCMCL2COUNT
232 * Return an integer count of all MCL2 PCIXCCs.
233 *
234 * Z90STAT_PCIXCCMCL3COUNT
235 * Return an integer count of all MCL3 PCIXCCs.
236 *
237 * Z90STAT_CEX2CCOUNT
238 * Return an integer count of all CEX2Cs.
239 *
240 * Z90STAT_CEX2ACOUNT
241 * Return an integer count of all CEX2As.
242 *
243 * ICAZ90STATUS
244 * Return some device driver status in a ica_z90_status struct
245 * This takes an ica_z90_status struct as its arg.
246 *
247 * Z90STAT_PCIXCCCOUNT
248 * Return an integer count of all PCIXCCs (MCL2 + MCL3).
249 * This is DEPRECATED now that MCL3 PCIXCCs are treated differently from
250 * MCL2 PCIXCCs.
251 */
252
253/**
254 * Supported ioctl calls
255 */
256#define ICARSAMODEXPO _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x05, 0)
257#define ICARSACRT _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x06, 0)
258#define ZSECSENDCPRB _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x81, 0)
259
260/* New status calls */
261#define Z90STAT_TOTALCOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x40, int)
262#define Z90STAT_PCICACOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x41, int)
263#define Z90STAT_PCICCCOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x42, int)
264#define Z90STAT_PCIXCCMCL2COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4b, int)
265#define Z90STAT_PCIXCCMCL3COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4c, int)
266#define Z90STAT_CEX2CCOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4d, int)
267#define Z90STAT_CEX2ACOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4e, int)
268#define Z90STAT_REQUESTQ_COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x44, int)
269#define Z90STAT_PENDINGQ_COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x45, int)
270#define Z90STAT_TOTALOPEN_COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x46, int)
271#define Z90STAT_DOMAIN_INDEX _IOR(ZCRYPT_IOCTL_MAGIC, 0x47, int)
272#define Z90STAT_STATUS_MASK _IOR(ZCRYPT_IOCTL_MAGIC, 0x48, char[64])
273#define Z90STAT_QDEPTH_MASK _IOR(ZCRYPT_IOCTL_MAGIC, 0x49, char[64])
274#define Z90STAT_PERDEV_REQCNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4a, int[64])
275
276#endif /* __ASM_S390_ZCRYPT_H */