diff options
Diffstat (limited to 'drivers/s390')
-rw-r--r-- | drivers/s390/crypto/zcrypt_cca_key.h | 350 | ||||
-rw-r--r-- | drivers/s390/crypto/zcrypt_pcicc.c | 630 | ||||
-rw-r--r-- | drivers/s390/crypto/zcrypt_pcicc.h | 176 | ||||
-rw-r--r-- | drivers/s390/crypto/zcrypt_pcixcc.c | 714 | ||||
-rw-r--r-- | drivers/s390/crypto/zcrypt_pcixcc.h | 79 |
5 files changed, 1949 insertions, 0 deletions
diff --git a/drivers/s390/crypto/zcrypt_cca_key.h b/drivers/s390/crypto/zcrypt_cca_key.h new file mode 100644 index 00000000000..c80f40d4419 --- /dev/null +++ b/drivers/s390/crypto/zcrypt_cca_key.h | |||
@@ -0,0 +1,350 @@ | |||
1 | /* | ||
2 | * linux/drivers/s390/crypto/zcrypt_cca_key.h | ||
3 | * | ||
4 | * zcrypt 2.0.0 | ||
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_CCA_KEY_H_ | ||
29 | #define _ZCRYPT_CCA_KEY_H_ | ||
30 | |||
31 | struct T6_keyBlock_hdr { | ||
32 | unsigned short blen; | ||
33 | unsigned short ulen; | ||
34 | unsigned short flags; | ||
35 | }; | ||
36 | |||
37 | /** | ||
38 | * mapping for the cca private ME key token. | ||
39 | * Three parts of interest here: the header, the private section and | ||
40 | * the public section. | ||
41 | * | ||
42 | * mapping for the cca key token header | ||
43 | */ | ||
44 | struct cca_token_hdr { | ||
45 | unsigned char token_identifier; | ||
46 | unsigned char version; | ||
47 | unsigned short token_length; | ||
48 | unsigned char reserved[4]; | ||
49 | } __attribute__((packed)); | ||
50 | |||
51 | #define CCA_TKN_HDR_ID_EXT 0x1E | ||
52 | |||
53 | /** | ||
54 | * mapping for the cca private ME section | ||
55 | */ | ||
56 | struct cca_private_ext_ME_sec { | ||
57 | unsigned char section_identifier; | ||
58 | unsigned char version; | ||
59 | unsigned short section_length; | ||
60 | unsigned char private_key_hash[20]; | ||
61 | unsigned char reserved1[4]; | ||
62 | unsigned char key_format; | ||
63 | unsigned char reserved2; | ||
64 | unsigned char key_name_hash[20]; | ||
65 | unsigned char key_use_flags[4]; | ||
66 | unsigned char reserved3[6]; | ||
67 | unsigned char reserved4[24]; | ||
68 | unsigned char confounder[24]; | ||
69 | unsigned char exponent[128]; | ||
70 | unsigned char modulus[128]; | ||
71 | } __attribute__((packed)); | ||
72 | |||
73 | #define CCA_PVT_USAGE_ALL 0x80 | ||
74 | |||
75 | /** | ||
76 | * mapping for the cca public section | ||
77 | * In a private key, the modulus doesn't appear in the public | ||
78 | * section. So, an arbitrary public exponent of 0x010001 will be | ||
79 | * used, for a section length of 0x0F always. | ||
80 | */ | ||
81 | struct cca_public_sec { | ||
82 | unsigned char section_identifier; | ||
83 | unsigned char version; | ||
84 | unsigned short section_length; | ||
85 | unsigned char reserved[2]; | ||
86 | unsigned short exponent_len; | ||
87 | unsigned short modulus_bit_len; | ||
88 | unsigned short modulus_byte_len; /* In a private key, this is 0 */ | ||
89 | } __attribute__((packed)); | ||
90 | |||
91 | /** | ||
92 | * mapping for the cca private CRT key 'token' | ||
93 | * The first three parts (the only parts considered in this release) | ||
94 | * are: the header, the private section and the public section. | ||
95 | * The header and public section are the same as for the | ||
96 | * struct cca_private_ext_ME | ||
97 | * | ||
98 | * Following the structure are the quantities p, q, dp, dq, u, pad, | ||
99 | * and modulus, in that order, where pad_len is the modulo 8 | ||
100 | * complement of the residue modulo 8 of the sum of | ||
101 | * (p_len + q_len + dp_len + dq_len + u_len). | ||
102 | */ | ||
103 | struct cca_pvt_ext_CRT_sec { | ||
104 | unsigned char section_identifier; | ||
105 | unsigned char version; | ||
106 | unsigned short section_length; | ||
107 | unsigned char private_key_hash[20]; | ||
108 | unsigned char reserved1[4]; | ||
109 | unsigned char key_format; | ||
110 | unsigned char reserved2; | ||
111 | unsigned char key_name_hash[20]; | ||
112 | unsigned char key_use_flags[4]; | ||
113 | unsigned short p_len; | ||
114 | unsigned short q_len; | ||
115 | unsigned short dp_len; | ||
116 | unsigned short dq_len; | ||
117 | unsigned short u_len; | ||
118 | unsigned short mod_len; | ||
119 | unsigned char reserved3[4]; | ||
120 | unsigned short pad_len; | ||
121 | unsigned char reserved4[52]; | ||
122 | unsigned char confounder[8]; | ||
123 | } __attribute__((packed)); | ||
124 | |||
125 | #define CCA_PVT_EXT_CRT_SEC_ID_PVT 0x08 | ||
126 | #define CCA_PVT_EXT_CRT_SEC_FMT_CL 0x40 | ||
127 | |||
128 | /** | ||
129 | * Set up private key fields of a type6 MEX message. | ||
130 | * Note that all numerics in the key token are big-endian, | ||
131 | * while the entries in the key block header are little-endian. | ||
132 | * | ||
133 | * @mex: pointer to user input data | ||
134 | * @p: pointer to memory area for the key | ||
135 | * | ||
136 | * Returns the size of the key area or -EFAULT | ||
137 | */ | ||
138 | static inline int zcrypt_type6_mex_key_de(struct ica_rsa_modexpo *mex, | ||
139 | void *p, int big_endian) | ||
140 | { | ||
141 | static struct cca_token_hdr static_pvt_me_hdr = { | ||
142 | .token_identifier = 0x1E, | ||
143 | .token_length = 0x0183, | ||
144 | }; | ||
145 | static struct cca_private_ext_ME_sec static_pvt_me_sec = { | ||
146 | .section_identifier = 0x02, | ||
147 | .section_length = 0x016C, | ||
148 | .key_use_flags = {0x80,0x00,0x00,0x00}, | ||
149 | }; | ||
150 | static struct cca_public_sec static_pub_me_sec = { | ||
151 | .section_identifier = 0x04, | ||
152 | .section_length = 0x000F, | ||
153 | .exponent_len = 0x0003, | ||
154 | }; | ||
155 | static char pk_exponent[3] = { 0x01, 0x00, 0x01 }; | ||
156 | struct { | ||
157 | struct T6_keyBlock_hdr t6_hdr; | ||
158 | struct cca_token_hdr pvtMeHdr; | ||
159 | struct cca_private_ext_ME_sec pvtMeSec; | ||
160 | struct cca_public_sec pubMeSec; | ||
161 | char exponent[3]; | ||
162 | } __attribute__((packed)) *key = p; | ||
163 | unsigned char *temp; | ||
164 | |||
165 | memset(key, 0, sizeof(*key)); | ||
166 | |||
167 | if (big_endian) { | ||
168 | key->t6_hdr.blen = cpu_to_be16(0x189); | ||
169 | key->t6_hdr.ulen = cpu_to_be16(0x189 - 2); | ||
170 | } else { | ||
171 | key->t6_hdr.blen = cpu_to_le16(0x189); | ||
172 | key->t6_hdr.ulen = cpu_to_le16(0x189 - 2); | ||
173 | } | ||
174 | key->pvtMeHdr = static_pvt_me_hdr; | ||
175 | key->pvtMeSec = static_pvt_me_sec; | ||
176 | key->pubMeSec = static_pub_me_sec; | ||
177 | /** | ||
178 | * In a private key, the modulus doesn't appear in the public | ||
179 | * section. So, an arbitrary public exponent of 0x010001 will be | ||
180 | * used. | ||
181 | */ | ||
182 | memcpy(key->exponent, pk_exponent, 3); | ||
183 | |||
184 | /* key parameter block */ | ||
185 | temp = key->pvtMeSec.exponent + | ||
186 | sizeof(key->pvtMeSec.exponent) - mex->inputdatalength; | ||
187 | if (copy_from_user(temp, mex->b_key, mex->inputdatalength)) | ||
188 | return -EFAULT; | ||
189 | |||
190 | /* modulus */ | ||
191 | temp = key->pvtMeSec.modulus + | ||
192 | sizeof(key->pvtMeSec.modulus) - mex->inputdatalength; | ||
193 | if (copy_from_user(temp, mex->n_modulus, mex->inputdatalength)) | ||
194 | return -EFAULT; | ||
195 | key->pubMeSec.modulus_bit_len = 8 * mex->inputdatalength; | ||
196 | return sizeof(*key); | ||
197 | } | ||
198 | |||
199 | /** | ||
200 | * Set up private key fields of a type6 MEX message. The _pad variant | ||
201 | * strips leading zeroes from the b_key. | ||
202 | * Note that all numerics in the key token are big-endian, | ||
203 | * while the entries in the key block header are little-endian. | ||
204 | * | ||
205 | * @mex: pointer to user input data | ||
206 | * @p: pointer to memory area for the key | ||
207 | * | ||
208 | * Returns the size of the key area or -EFAULT | ||
209 | */ | ||
210 | static inline int zcrypt_type6_mex_key_en(struct ica_rsa_modexpo *mex, | ||
211 | void *p, int big_endian) | ||
212 | { | ||
213 | static struct cca_token_hdr static_pub_hdr = { | ||
214 | .token_identifier = 0x1E, | ||
215 | }; | ||
216 | static struct cca_public_sec static_pub_sec = { | ||
217 | .section_identifier = 0x04, | ||
218 | }; | ||
219 | struct { | ||
220 | struct T6_keyBlock_hdr t6_hdr; | ||
221 | struct cca_token_hdr pubHdr; | ||
222 | struct cca_public_sec pubSec; | ||
223 | char exponent[0]; | ||
224 | } __attribute__((packed)) *key = p; | ||
225 | unsigned char *temp; | ||
226 | int i; | ||
227 | |||
228 | memset(key, 0, sizeof(*key)); | ||
229 | |||
230 | key->pubHdr = static_pub_hdr; | ||
231 | key->pubSec = static_pub_sec; | ||
232 | |||
233 | /* key parameter block */ | ||
234 | temp = key->exponent; | ||
235 | if (copy_from_user(temp, mex->b_key, mex->inputdatalength)) | ||
236 | return -EFAULT; | ||
237 | /* Strip leading zeroes from b_key. */ | ||
238 | for (i = 0; i < mex->inputdatalength; i++) | ||
239 | if (temp[i]) | ||
240 | break; | ||
241 | if (i >= mex->inputdatalength) | ||
242 | return -EINVAL; | ||
243 | memmove(temp, temp + i, mex->inputdatalength - i); | ||
244 | temp += mex->inputdatalength - i; | ||
245 | /* modulus */ | ||
246 | if (copy_from_user(temp, mex->n_modulus, mex->inputdatalength)) | ||
247 | return -EFAULT; | ||
248 | |||
249 | key->pubSec.modulus_bit_len = 8 * mex->inputdatalength; | ||
250 | key->pubSec.modulus_byte_len = mex->inputdatalength; | ||
251 | key->pubSec.exponent_len = mex->inputdatalength - i; | ||
252 | key->pubSec.section_length = sizeof(key->pubSec) + | ||
253 | 2*mex->inputdatalength - i; | ||
254 | key->pubHdr.token_length = | ||
255 | key->pubSec.section_length + sizeof(key->pubHdr); | ||
256 | if (big_endian) { | ||
257 | key->t6_hdr.ulen = cpu_to_be16(key->pubHdr.token_length + 4); | ||
258 | key->t6_hdr.blen = cpu_to_be16(key->pubHdr.token_length + 6); | ||
259 | } else { | ||
260 | key->t6_hdr.ulen = cpu_to_le16(key->pubHdr.token_length + 4); | ||
261 | key->t6_hdr.blen = cpu_to_le16(key->pubHdr.token_length + 6); | ||
262 | } | ||
263 | return sizeof(*key) + 2*mex->inputdatalength - i; | ||
264 | } | ||
265 | |||
266 | /** | ||
267 | * Set up private key fields of a type6 CRT message. | ||
268 | * Note that all numerics in the key token are big-endian, | ||
269 | * while the entries in the key block header are little-endian. | ||
270 | * | ||
271 | * @mex: pointer to user input data | ||
272 | * @p: pointer to memory area for the key | ||
273 | * | ||
274 | * Returns the size of the key area or -EFAULT | ||
275 | */ | ||
276 | static inline int zcrypt_type6_crt_key(struct ica_rsa_modexpo_crt *crt, | ||
277 | void *p, int big_endian) | ||
278 | { | ||
279 | static struct cca_public_sec static_cca_pub_sec = { | ||
280 | .section_identifier = 4, | ||
281 | .section_length = 0x000f, | ||
282 | .exponent_len = 0x0003, | ||
283 | }; | ||
284 | static char pk_exponent[3] = { 0x01, 0x00, 0x01 }; | ||
285 | struct { | ||
286 | struct T6_keyBlock_hdr t6_hdr; | ||
287 | struct cca_token_hdr token; | ||
288 | struct cca_pvt_ext_CRT_sec pvt; | ||
289 | char key_parts[0]; | ||
290 | } __attribute__((packed)) *key = p; | ||
291 | struct cca_public_sec *pub; | ||
292 | int short_len, long_len, pad_len, key_len, size; | ||
293 | |||
294 | memset(key, 0, sizeof(*key)); | ||
295 | |||
296 | short_len = crt->inputdatalength / 2; | ||
297 | long_len = short_len + 8; | ||
298 | pad_len = -(3*long_len + 2*short_len) & 7; | ||
299 | key_len = 3*long_len + 2*short_len + pad_len + crt->inputdatalength; | ||
300 | size = sizeof(*key) + key_len + sizeof(*pub) + 3; | ||
301 | |||
302 | /* parameter block.key block */ | ||
303 | if (big_endian) { | ||
304 | key->t6_hdr.blen = cpu_to_be16(size); | ||
305 | key->t6_hdr.ulen = cpu_to_be16(size - 2); | ||
306 | } else { | ||
307 | key->t6_hdr.blen = cpu_to_le16(size); | ||
308 | key->t6_hdr.ulen = cpu_to_le16(size - 2); | ||
309 | } | ||
310 | |||
311 | /* key token header */ | ||
312 | key->token.token_identifier = CCA_TKN_HDR_ID_EXT; | ||
313 | key->token.token_length = size - 6; | ||
314 | |||
315 | /* private section */ | ||
316 | key->pvt.section_identifier = CCA_PVT_EXT_CRT_SEC_ID_PVT; | ||
317 | key->pvt.section_length = sizeof(key->pvt) + key_len; | ||
318 | key->pvt.key_format = CCA_PVT_EXT_CRT_SEC_FMT_CL; | ||
319 | key->pvt.key_use_flags[0] = CCA_PVT_USAGE_ALL; | ||
320 | key->pvt.p_len = key->pvt.dp_len = key->pvt.u_len = long_len; | ||
321 | key->pvt.q_len = key->pvt.dq_len = short_len; | ||
322 | key->pvt.mod_len = crt->inputdatalength; | ||
323 | key->pvt.pad_len = pad_len; | ||
324 | |||
325 | /* key parts */ | ||
326 | if (copy_from_user(key->key_parts, crt->np_prime, long_len) || | ||
327 | copy_from_user(key->key_parts + long_len, | ||
328 | crt->nq_prime, short_len) || | ||
329 | copy_from_user(key->key_parts + long_len + short_len, | ||
330 | crt->bp_key, long_len) || | ||
331 | copy_from_user(key->key_parts + 2*long_len + short_len, | ||
332 | crt->bq_key, short_len) || | ||
333 | copy_from_user(key->key_parts + 2*long_len + 2*short_len, | ||
334 | crt->u_mult_inv, long_len)) | ||
335 | return -EFAULT; | ||
336 | memset(key->key_parts + 3*long_len + 2*short_len + pad_len, | ||
337 | 0xff, crt->inputdatalength); | ||
338 | pub = (struct cca_public_sec *)(key->key_parts + key_len); | ||
339 | *pub = static_cca_pub_sec; | ||
340 | pub->modulus_bit_len = 8 * crt->inputdatalength; | ||
341 | /** | ||
342 | * In a private key, the modulus doesn't appear in the public | ||
343 | * section. So, an arbitrary public exponent of 0x010001 will be | ||
344 | * used. | ||
345 | */ | ||
346 | memcpy((char *) (pub + 1), pk_exponent, 3); | ||
347 | return size; | ||
348 | } | ||
349 | |||
350 | #endif /* _ZCRYPT_CCA_KEY_H_ */ | ||
diff --git a/drivers/s390/crypto/zcrypt_pcicc.c b/drivers/s390/crypto/zcrypt_pcicc.c new file mode 100644 index 00000000000..900362983fe --- /dev/null +++ b/drivers/s390/crypto/zcrypt_pcicc.c | |||
@@ -0,0 +1,630 @@ | |||
1 | /* | ||
2 | * linux/drivers/s390/crypto/zcrypt_pcicc.c | ||
3 | * | ||
4 | * zcrypt 2.0.0 | ||
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 | * Ralph Wuerthner <rwuerthn@de.ibm.com> | ||
13 | * | ||
14 | * This program is free software; you can redistribute it and/or modify | ||
15 | * it under the terms of the GNU General Public License as published by | ||
16 | * the Free Software Foundation; either version 2, or (at your option) | ||
17 | * any later version. | ||
18 | * | ||
19 | * This program is distributed in the hope that it will be useful, | ||
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
22 | * GNU General Public License for more details. | ||
23 | * | ||
24 | * You should have received a copy of the GNU General Public License | ||
25 | * along with this program; if not, write to the Free Software | ||
26 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
27 | */ | ||
28 | |||
29 | #include <linux/module.h> | ||
30 | #include <linux/init.h> | ||
31 | #include <linux/err.h> | ||
32 | #include <asm/atomic.h> | ||
33 | #include <asm/uaccess.h> | ||
34 | |||
35 | #include "ap_bus.h" | ||
36 | #include "zcrypt_api.h" | ||
37 | #include "zcrypt_error.h" | ||
38 | #include "zcrypt_pcicc.h" | ||
39 | #include "zcrypt_cca_key.h" | ||
40 | |||
41 | #define PCICC_MIN_MOD_SIZE 64 /* 512 bits */ | ||
42 | #define PCICC_MAX_MOD_SIZE_OLD 128 /* 1024 bits */ | ||
43 | #define PCICC_MAX_MOD_SIZE 256 /* 2048 bits */ | ||
44 | |||
45 | /** | ||
46 | * PCICC cards need a speed rating of 0. This keeps them at the end of | ||
47 | * the zcrypt device list (see zcrypt_api.c). PCICC cards are only | ||
48 | * used if no other cards are present because they are slow and can only | ||
49 | * cope with PKCS12 padded requests. The logic is queer. PKCS11 padded | ||
50 | * requests are rejected. The modexpo function encrypts PKCS12 padded data | ||
51 | * and decrypts any non-PKCS12 padded data (except PKCS11) in the assumption | ||
52 | * that it's encrypted PKCS12 data. The modexpo_crt function always decrypts | ||
53 | * the data in the assumption that its PKCS12 encrypted data. | ||
54 | */ | ||
55 | #define PCICC_SPEED_RATING 0 | ||
56 | |||
57 | #define PCICC_MAX_MESSAGE_SIZE 0x710 /* max size type6 v1 crt message */ | ||
58 | #define PCICC_MAX_RESPONSE_SIZE 0x710 /* max size type86 v1 reply */ | ||
59 | |||
60 | #define PCICC_CLEANUP_TIME (15*HZ) | ||
61 | |||
62 | static struct ap_device_id zcrypt_pcicc_ids[] = { | ||
63 | { AP_DEVICE(AP_DEVICE_TYPE_PCICC) }, | ||
64 | { /* end of list */ }, | ||
65 | }; | ||
66 | |||
67 | #ifndef CONFIG_ZCRYPT_MONOLITHIC | ||
68 | MODULE_DEVICE_TABLE(ap, zcrypt_pcicc_ids); | ||
69 | MODULE_AUTHOR("IBM Corporation"); | ||
70 | MODULE_DESCRIPTION("PCICC Cryptographic Coprocessor device driver, " | ||
71 | "Copyright 2001, 2006 IBM Corporation"); | ||
72 | MODULE_LICENSE("GPL"); | ||
73 | #endif | ||
74 | |||
75 | static int zcrypt_pcicc_probe(struct ap_device *ap_dev); | ||
76 | static void zcrypt_pcicc_remove(struct ap_device *ap_dev); | ||
77 | static void zcrypt_pcicc_receive(struct ap_device *, struct ap_message *, | ||
78 | struct ap_message *); | ||
79 | |||
80 | static struct ap_driver zcrypt_pcicc_driver = { | ||
81 | .probe = zcrypt_pcicc_probe, | ||
82 | .remove = zcrypt_pcicc_remove, | ||
83 | .receive = zcrypt_pcicc_receive, | ||
84 | .ids = zcrypt_pcicc_ids, | ||
85 | }; | ||
86 | |||
87 | /** | ||
88 | * The following is used to initialize the CPRB passed to the PCICC card | ||
89 | * in a type6 message. The 3 fields that must be filled in at execution | ||
90 | * time are req_parml, rpl_parml and usage_domain. Note that all three | ||
91 | * fields are *little*-endian. Actually, everything about this interface | ||
92 | * is ascii/little-endian, since the device has 'Intel inside'. | ||
93 | * | ||
94 | * The CPRB is followed immediately by the parm block. | ||
95 | * The parm block contains: | ||
96 | * - function code ('PD' 0x5044 or 'PK' 0x504B) | ||
97 | * - rule block (0x0A00 'PKCS-1.2' or 0x0A00 'ZERO-PAD') | ||
98 | * - VUD block | ||
99 | */ | ||
100 | static struct CPRB static_cprb = { | ||
101 | .cprb_len = __constant_cpu_to_le16(0x0070), | ||
102 | .cprb_ver_id = 0x41, | ||
103 | .func_id = {0x54,0x32}, | ||
104 | .checkpoint_flag= 0x01, | ||
105 | .svr_namel = __constant_cpu_to_le16(0x0008), | ||
106 | .svr_name = {'I','C','S','F',' ',' ',' ',' '} | ||
107 | }; | ||
108 | |||
109 | /** | ||
110 | * Check the message for PKCS11 padding. | ||
111 | */ | ||
112 | static inline int is_PKCS11_padded(unsigned char *buffer, int length) | ||
113 | { | ||
114 | int i; | ||
115 | if ((buffer[0] != 0x00) || (buffer[1] != 0x01)) | ||
116 | return 0; | ||
117 | for (i = 2; i < length; i++) | ||
118 | if (buffer[i] != 0xFF) | ||
119 | break; | ||
120 | if (i < 10 || i == length) | ||
121 | return 0; | ||
122 | if (buffer[i] != 0x00) | ||
123 | return 0; | ||
124 | return 1; | ||
125 | } | ||
126 | |||
127 | /** | ||
128 | * Check the message for PKCS12 padding. | ||
129 | */ | ||
130 | static inline int is_PKCS12_padded(unsigned char *buffer, int length) | ||
131 | { | ||
132 | int i; | ||
133 | if ((buffer[0] != 0x00) || (buffer[1] != 0x02)) | ||
134 | return 0; | ||
135 | for (i = 2; i < length; i++) | ||
136 | if (buffer[i] == 0x00) | ||
137 | break; | ||
138 | if ((i < 10) || (i == length)) | ||
139 | return 0; | ||
140 | if (buffer[i] != 0x00) | ||
141 | return 0; | ||
142 | return 1; | ||
143 | } | ||
144 | |||
145 | /** | ||
146 | * Convert a ICAMEX message to a type6 MEX message. | ||
147 | * | ||
148 | * @zdev: crypto device pointer | ||
149 | * @zreq: crypto request pointer | ||
150 | * @mex: pointer to user input data | ||
151 | * | ||
152 | * Returns 0 on success or -EFAULT. | ||
153 | */ | ||
154 | static int ICAMEX_msg_to_type6MEX_msg(struct zcrypt_device *zdev, | ||
155 | struct ap_message *ap_msg, | ||
156 | struct ica_rsa_modexpo *mex) | ||
157 | { | ||
158 | static struct type6_hdr static_type6_hdr = { | ||
159 | .type = 0x06, | ||
160 | .offset1 = 0x00000058, | ||
161 | .agent_id = {0x01,0x00,0x43,0x43,0x41,0x2D,0x41,0x50, | ||
162 | 0x50,0x4C,0x20,0x20,0x20,0x01,0x01,0x01}, | ||
163 | .function_code = {'P','K'}, | ||
164 | }; | ||
165 | static struct function_and_rules_block static_pke_function_and_rules ={ | ||
166 | .function_code = {'P','K'}, | ||
167 | .ulen = __constant_cpu_to_le16(10), | ||
168 | .only_rule = {'P','K','C','S','-','1','.','2'} | ||
169 | }; | ||
170 | struct { | ||
171 | struct type6_hdr hdr; | ||
172 | struct CPRB cprb; | ||
173 | struct function_and_rules_block fr; | ||
174 | unsigned short length; | ||
175 | char text[0]; | ||
176 | } __attribute__((packed)) *msg = ap_msg->message; | ||
177 | int vud_len, pad_len, size; | ||
178 | |||
179 | /* VUD.ciphertext */ | ||
180 | if (copy_from_user(msg->text, mex->inputdata, mex->inputdatalength)) | ||
181 | return -EFAULT; | ||
182 | |||
183 | if (is_PKCS11_padded(msg->text, mex->inputdatalength)) | ||
184 | return -EINVAL; | ||
185 | |||
186 | /* static message header and f&r */ | ||
187 | msg->hdr = static_type6_hdr; | ||
188 | msg->fr = static_pke_function_and_rules; | ||
189 | |||
190 | if (is_PKCS12_padded(msg->text, mex->inputdatalength)) { | ||
191 | /* strip the padding and adjust the data length */ | ||
192 | pad_len = strnlen(msg->text + 2, mex->inputdatalength - 2) + 3; | ||
193 | if (pad_len <= 9 || pad_len >= mex->inputdatalength) | ||
194 | return -ENODEV; | ||
195 | vud_len = mex->inputdatalength - pad_len; | ||
196 | memmove(msg->text, msg->text + pad_len, vud_len); | ||
197 | msg->length = cpu_to_le16(vud_len + 2); | ||
198 | |||
199 | /* Set up key after the variable length text. */ | ||
200 | size = zcrypt_type6_mex_key_en(mex, msg->text + vud_len, 0); | ||
201 | if (size < 0) | ||
202 | return size; | ||
203 | size += sizeof(*msg) + vud_len; /* total size of msg */ | ||
204 | } else { | ||
205 | vud_len = mex->inputdatalength; | ||
206 | msg->length = cpu_to_le16(2 + vud_len); | ||
207 | |||
208 | msg->hdr.function_code[1] = 'D'; | ||
209 | msg->fr.function_code[1] = 'D'; | ||
210 | |||
211 | /* Set up key after the variable length text. */ | ||
212 | size = zcrypt_type6_mex_key_de(mex, msg->text + vud_len, 0); | ||
213 | if (size < 0) | ||
214 | return size; | ||
215 | size += sizeof(*msg) + vud_len; /* total size of msg */ | ||
216 | } | ||
217 | |||
218 | /* message header, cprb and f&r */ | ||
219 | msg->hdr.ToCardLen1 = (size - sizeof(msg->hdr) + 3) & -4; | ||
220 | msg->hdr.FromCardLen1 = PCICC_MAX_RESPONSE_SIZE - sizeof(msg->hdr); | ||
221 | |||
222 | msg->cprb = static_cprb; | ||
223 | msg->cprb.usage_domain[0]= AP_QID_QUEUE(zdev->ap_dev->qid); | ||
224 | msg->cprb.req_parml = cpu_to_le16(size - sizeof(msg->hdr) - | ||
225 | sizeof(msg->cprb)); | ||
226 | msg->cprb.rpl_parml = cpu_to_le16(msg->hdr.FromCardLen1); | ||
227 | |||
228 | ap_msg->length = (size + 3) & -4; | ||
229 | return 0; | ||
230 | } | ||
231 | |||
232 | /** | ||
233 | * Convert a ICACRT message to a type6 CRT message. | ||
234 | * | ||
235 | * @zdev: crypto device pointer | ||
236 | * @zreq: crypto request pointer | ||
237 | * @crt: pointer to user input data | ||
238 | * | ||
239 | * Returns 0 on success or -EFAULT. | ||
240 | */ | ||
241 | static int ICACRT_msg_to_type6CRT_msg(struct zcrypt_device *zdev, | ||
242 | struct ap_message *ap_msg, | ||
243 | struct ica_rsa_modexpo_crt *crt) | ||
244 | { | ||
245 | static struct type6_hdr static_type6_hdr = { | ||
246 | .type = 0x06, | ||
247 | .offset1 = 0x00000058, | ||
248 | .agent_id = {0x01,0x00,0x43,0x43,0x41,0x2D,0x41,0x50, | ||
249 | 0x50,0x4C,0x20,0x20,0x20,0x01,0x01,0x01}, | ||
250 | .function_code = {'P','D'}, | ||
251 | }; | ||
252 | static struct function_and_rules_block static_pkd_function_and_rules ={ | ||
253 | .function_code = {'P','D'}, | ||
254 | .ulen = __constant_cpu_to_le16(10), | ||
255 | .only_rule = {'P','K','C','S','-','1','.','2'} | ||
256 | }; | ||
257 | struct { | ||
258 | struct type6_hdr hdr; | ||
259 | struct CPRB cprb; | ||
260 | struct function_and_rules_block fr; | ||
261 | unsigned short length; | ||
262 | char text[0]; | ||
263 | } __attribute__((packed)) *msg = ap_msg->message; | ||
264 | int size; | ||
265 | |||
266 | /* VUD.ciphertext */ | ||
267 | msg->length = cpu_to_le16(2 + crt->inputdatalength); | ||
268 | if (copy_from_user(msg->text, crt->inputdata, crt->inputdatalength)) | ||
269 | return -EFAULT; | ||
270 | |||
271 | if (is_PKCS11_padded(msg->text, crt->inputdatalength)) | ||
272 | return -EINVAL; | ||
273 | |||
274 | /* Set up key after the variable length text. */ | ||
275 | size = zcrypt_type6_crt_key(crt, msg->text + crt->inputdatalength, 0); | ||
276 | if (size < 0) | ||
277 | return size; | ||
278 | size += sizeof(*msg) + crt->inputdatalength; /* total size of msg */ | ||
279 | |||
280 | /* message header, cprb and f&r */ | ||
281 | msg->hdr = static_type6_hdr; | ||
282 | msg->hdr.ToCardLen1 = (size - sizeof(msg->hdr) + 3) & -4; | ||
283 | msg->hdr.FromCardLen1 = PCICC_MAX_RESPONSE_SIZE - sizeof(msg->hdr); | ||
284 | |||
285 | msg->cprb = static_cprb; | ||
286 | msg->cprb.usage_domain[0] = AP_QID_QUEUE(zdev->ap_dev->qid); | ||
287 | msg->cprb.req_parml = msg->cprb.rpl_parml = | ||
288 | cpu_to_le16(size - sizeof(msg->hdr) - sizeof(msg->cprb)); | ||
289 | |||
290 | msg->fr = static_pkd_function_and_rules; | ||
291 | |||
292 | ap_msg->length = (size + 3) & -4; | ||
293 | return 0; | ||
294 | } | ||
295 | |||
296 | /** | ||
297 | * Copy results from a type 86 reply message back to user space. | ||
298 | * | ||
299 | * @zdev: crypto device pointer | ||
300 | * @reply: reply AP message. | ||
301 | * @data: pointer to user output data | ||
302 | * @length: size of user output data | ||
303 | * | ||
304 | * Returns 0 on success or -EINVAL, -EFAULT, -EAGAIN in case of an error. | ||
305 | */ | ||
306 | struct type86_reply { | ||
307 | struct type86_hdr hdr; | ||
308 | struct type86_fmt2_ext fmt2; | ||
309 | struct CPRB cprb; | ||
310 | unsigned char pad[4]; /* 4 byte function code/rules block ? */ | ||
311 | unsigned short length; | ||
312 | char text[0]; | ||
313 | } __attribute__((packed)); | ||
314 | |||
315 | static int convert_type86(struct zcrypt_device *zdev, | ||
316 | struct ap_message *reply, | ||
317 | char __user *outputdata, | ||
318 | unsigned int outputdatalength) | ||
319 | { | ||
320 | static unsigned char static_pad[] = { | ||
321 | 0x00,0x02, | ||
322 | 0x1B,0x7B,0x5D,0xB5,0x75,0x01,0x3D,0xFD, | ||
323 | 0x8D,0xD1,0xC7,0x03,0x2D,0x09,0x23,0x57, | ||
324 | 0x89,0x49,0xB9,0x3F,0xBB,0x99,0x41,0x5B, | ||
325 | 0x75,0x21,0x7B,0x9D,0x3B,0x6B,0x51,0x39, | ||
326 | 0xBB,0x0D,0x35,0xB9,0x89,0x0F,0x93,0xA5, | ||
327 | 0x0B,0x47,0xF1,0xD3,0xBB,0xCB,0xF1,0x9D, | ||
328 | 0x23,0x73,0x71,0xFF,0xF3,0xF5,0x45,0xFB, | ||
329 | 0x61,0x29,0x23,0xFD,0xF1,0x29,0x3F,0x7F, | ||
330 | 0x17,0xB7,0x1B,0xA9,0x19,0xBD,0x57,0xA9, | ||
331 | 0xD7,0x95,0xA3,0xCB,0xED,0x1D,0xDB,0x45, | ||
332 | 0x7D,0x11,0xD1,0x51,0x1B,0xED,0x71,0xE9, | ||
333 | 0xB1,0xD1,0xAB,0xAB,0x21,0x2B,0x1B,0x9F, | ||
334 | 0x3B,0x9F,0xF7,0xF7,0xBD,0x63,0xEB,0xAD, | ||
335 | 0xDF,0xB3,0x6F,0x5B,0xDB,0x8D,0xA9,0x5D, | ||
336 | 0xE3,0x7D,0x77,0x49,0x47,0xF5,0xA7,0xFD, | ||
337 | 0xAB,0x2F,0x27,0x35,0x77,0xD3,0x49,0xC9, | ||
338 | 0x09,0xEB,0xB1,0xF9,0xBF,0x4B,0xCB,0x2B, | ||
339 | 0xEB,0xEB,0x05,0xFF,0x7D,0xC7,0x91,0x8B, | ||
340 | 0x09,0x83,0xB9,0xB9,0x69,0x33,0x39,0x6B, | ||
341 | 0x79,0x75,0x19,0xBF,0xBB,0x07,0x1D,0xBD, | ||
342 | 0x29,0xBF,0x39,0x95,0x93,0x1D,0x35,0xC7, | ||
343 | 0xC9,0x4D,0xE5,0x97,0x0B,0x43,0x9B,0xF1, | ||
344 | 0x16,0x93,0x03,0x1F,0xA5,0xFB,0xDB,0xF3, | ||
345 | 0x27,0x4F,0x27,0x61,0x05,0x1F,0xB9,0x23, | ||
346 | 0x2F,0xC3,0x81,0xA9,0x23,0x71,0x55,0x55, | ||
347 | 0xEB,0xED,0x41,0xE5,0xF3,0x11,0xF1,0x43, | ||
348 | 0x69,0x03,0xBD,0x0B,0x37,0x0F,0x51,0x8F, | ||
349 | 0x0B,0xB5,0x89,0x5B,0x67,0xA9,0xD9,0x4F, | ||
350 | 0x01,0xF9,0x21,0x77,0x37,0x73,0x79,0xC5, | ||
351 | 0x7F,0x51,0xC1,0xCF,0x97,0xA1,0x75,0xAD, | ||
352 | 0x35,0x9D,0xD3,0xD3,0xA7,0x9D,0x5D,0x41, | ||
353 | 0x6F,0x65,0x1B,0xCF,0xA9,0x87,0x91,0x09 | ||
354 | }; | ||
355 | struct type86_reply *msg = reply->message; | ||
356 | unsigned short service_rc, service_rs; | ||
357 | unsigned int reply_len, pad_len; | ||
358 | char *data; | ||
359 | |||
360 | service_rc = le16_to_cpu(msg->cprb.ccp_rtcode); | ||
361 | if (unlikely(service_rc != 0)) { | ||
362 | service_rs = le16_to_cpu(msg->cprb.ccp_rscode); | ||
363 | if (service_rc == 8 && service_rs == 66) { | ||
364 | PDEBUG("Bad block format on PCICC\n"); | ||
365 | return -EINVAL; | ||
366 | } | ||
367 | if (service_rc == 8 && service_rs == 65) { | ||
368 | PDEBUG("Probably an even modulus on PCICC\n"); | ||
369 | return -EINVAL; | ||
370 | } | ||
371 | if (service_rc == 8 && service_rs == 770) { | ||
372 | PDEBUG("Invalid key length on PCICC\n"); | ||
373 | zdev->max_mod_size = PCICC_MAX_MOD_SIZE_OLD; | ||
374 | return -EAGAIN; | ||
375 | } | ||
376 | if (service_rc == 8 && service_rs == 783) { | ||
377 | PDEBUG("Extended bitlengths not enabled on PCICC\n"); | ||
378 | zdev->max_mod_size = PCICC_MAX_MOD_SIZE_OLD; | ||
379 | return -EAGAIN; | ||
380 | } | ||
381 | PRINTK("Unknown service rc/rs (PCICC): %d/%d\n", | ||
382 | service_rc, service_rs); | ||
383 | zdev->online = 0; | ||
384 | return -EAGAIN; /* repeat the request on a different device. */ | ||
385 | } | ||
386 | data = msg->text; | ||
387 | reply_len = le16_to_cpu(msg->length) - 2; | ||
388 | if (reply_len > outputdatalength) | ||
389 | return -EINVAL; | ||
390 | /** | ||
391 | * For all encipher requests, the length of the ciphertext (reply_len) | ||
392 | * will always equal the modulus length. For MEX decipher requests | ||
393 | * the output needs to get padded. Minimum pad size is 10. | ||
394 | * | ||
395 | * Currently, the cases where padding will be added is for: | ||
396 | * - PCIXCC_MCL2 using a CRT form token (since PKD didn't support | ||
397 | * ZERO-PAD and CRT is only supported for PKD requests) | ||
398 | * - PCICC, always | ||
399 | */ | ||
400 | pad_len = outputdatalength - reply_len; | ||
401 | if (pad_len > 0) { | ||
402 | if (pad_len < 10) | ||
403 | return -EINVAL; | ||
404 | /* 'restore' padding left in the PCICC/PCIXCC card. */ | ||
405 | if (copy_to_user(outputdata, static_pad, pad_len - 1)) | ||
406 | return -EFAULT; | ||
407 | if (put_user(0, outputdata + pad_len - 1)) | ||
408 | return -EFAULT; | ||
409 | } | ||
410 | /* Copy the crypto response to user space. */ | ||
411 | if (copy_to_user(outputdata + pad_len, data, reply_len)) | ||
412 | return -EFAULT; | ||
413 | return 0; | ||
414 | } | ||
415 | |||
416 | static int convert_response(struct zcrypt_device *zdev, | ||
417 | struct ap_message *reply, | ||
418 | char __user *outputdata, | ||
419 | unsigned int outputdatalength) | ||
420 | { | ||
421 | struct type86_reply *msg = reply->message; | ||
422 | |||
423 | /* Response type byte is the second byte in the response. */ | ||
424 | switch (msg->hdr.type) { | ||
425 | case TYPE82_RSP_CODE: | ||
426 | case TYPE88_RSP_CODE: | ||
427 | return convert_error(zdev, reply); | ||
428 | case TYPE86_RSP_CODE: | ||
429 | if (msg->hdr.reply_code) | ||
430 | return convert_error(zdev, reply); | ||
431 | if (msg->cprb.cprb_ver_id == 0x01) | ||
432 | return convert_type86(zdev, reply, | ||
433 | outputdata, outputdatalength); | ||
434 | /* no break, incorrect cprb version is an unknown response */ | ||
435 | default: /* Unknown response type, this should NEVER EVER happen */ | ||
436 | PRINTK("Unrecognized Message Header: %08x%08x\n", | ||
437 | *(unsigned int *) reply->message, | ||
438 | *(unsigned int *) (reply->message+4)); | ||
439 | zdev->online = 0; | ||
440 | return -EAGAIN; /* repeat the request on a different device. */ | ||
441 | } | ||
442 | } | ||
443 | |||
444 | /** | ||
445 | * This function is called from the AP bus code after a crypto request | ||
446 | * "msg" has finished with the reply message "reply". | ||
447 | * It is called from tasklet context. | ||
448 | * @ap_dev: pointer to the AP device | ||
449 | * @msg: pointer to the AP message | ||
450 | * @reply: pointer to the AP reply message | ||
451 | */ | ||
452 | static void zcrypt_pcicc_receive(struct ap_device *ap_dev, | ||
453 | struct ap_message *msg, | ||
454 | struct ap_message *reply) | ||
455 | { | ||
456 | static struct error_hdr error_reply = { | ||
457 | .type = TYPE82_RSP_CODE, | ||
458 | .reply_code = REP82_ERROR_MACHINE_FAILURE, | ||
459 | }; | ||
460 | struct type86_reply *t86r = reply->message; | ||
461 | int length; | ||
462 | |||
463 | /* Copy the reply message to the request message buffer. */ | ||
464 | if (IS_ERR(reply)) | ||
465 | memcpy(msg->message, &error_reply, sizeof(error_reply)); | ||
466 | else if (t86r->hdr.type == TYPE86_RSP_CODE && | ||
467 | t86r->cprb.cprb_ver_id == 0x01) { | ||
468 | length = sizeof(struct type86_reply) + t86r->length - 2; | ||
469 | length = min(PCICC_MAX_RESPONSE_SIZE, length); | ||
470 | memcpy(msg->message, reply->message, length); | ||
471 | } else | ||
472 | memcpy(msg->message, reply->message, sizeof error_reply); | ||
473 | complete((struct completion *) msg->private); | ||
474 | } | ||
475 | |||
476 | static atomic_t zcrypt_step = ATOMIC_INIT(0); | ||
477 | |||
478 | /** | ||
479 | * The request distributor calls this function if it picked the PCICC | ||
480 | * device to handle a modexpo request. | ||
481 | * @zdev: pointer to zcrypt_device structure that identifies the | ||
482 | * PCICC device to the request distributor | ||
483 | * @mex: pointer to the modexpo request buffer | ||
484 | */ | ||
485 | static long zcrypt_pcicc_modexpo(struct zcrypt_device *zdev, | ||
486 | struct ica_rsa_modexpo *mex) | ||
487 | { | ||
488 | struct ap_message ap_msg; | ||
489 | struct completion work; | ||
490 | int rc; | ||
491 | |||
492 | ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL); | ||
493 | if (!ap_msg.message) | ||
494 | return -ENOMEM; | ||
495 | ap_msg.length = PAGE_SIZE; | ||
496 | ap_msg.psmid = (((unsigned long long) current->pid) << 32) + | ||
497 | atomic_inc_return(&zcrypt_step); | ||
498 | ap_msg.private = &work; | ||
499 | rc = ICAMEX_msg_to_type6MEX_msg(zdev, &ap_msg, mex); | ||
500 | if (rc) | ||
501 | goto out_free; | ||
502 | init_completion(&work); | ||
503 | ap_queue_message(zdev->ap_dev, &ap_msg); | ||
504 | rc = wait_for_completion_interruptible_timeout( | ||
505 | &work, PCICC_CLEANUP_TIME); | ||
506 | if (rc > 0) | ||
507 | rc = convert_response(zdev, &ap_msg, mex->outputdata, | ||
508 | mex->outputdatalength); | ||
509 | else { | ||
510 | /* Signal pending or message timed out. */ | ||
511 | ap_cancel_message(zdev->ap_dev, &ap_msg); | ||
512 | if (rc == 0) | ||
513 | /* Message timed out. */ | ||
514 | rc = -ETIME; | ||
515 | } | ||
516 | out_free: | ||
517 | free_page((unsigned long) ap_msg.message); | ||
518 | return rc; | ||
519 | } | ||
520 | |||
521 | /** | ||
522 | * The request distributor calls this function if it picked the PCICC | ||
523 | * device to handle a modexpo_crt request. | ||
524 | * @zdev: pointer to zcrypt_device structure that identifies the | ||
525 | * PCICC device to the request distributor | ||
526 | * @crt: pointer to the modexpoc_crt request buffer | ||
527 | */ | ||
528 | static long zcrypt_pcicc_modexpo_crt(struct zcrypt_device *zdev, | ||
529 | struct ica_rsa_modexpo_crt *crt) | ||
530 | { | ||
531 | struct ap_message ap_msg; | ||
532 | struct completion work; | ||
533 | int rc; | ||
534 | |||
535 | ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL); | ||
536 | if (!ap_msg.message) | ||
537 | return -ENOMEM; | ||
538 | ap_msg.length = PAGE_SIZE; | ||
539 | ap_msg.psmid = (((unsigned long long) current->pid) << 32) + | ||
540 | atomic_inc_return(&zcrypt_step); | ||
541 | ap_msg.private = &work; | ||
542 | rc = ICACRT_msg_to_type6CRT_msg(zdev, &ap_msg, crt); | ||
543 | if (rc) | ||
544 | goto out_free; | ||
545 | init_completion(&work); | ||
546 | ap_queue_message(zdev->ap_dev, &ap_msg); | ||
547 | rc = wait_for_completion_interruptible_timeout( | ||
548 | &work, PCICC_CLEANUP_TIME); | ||
549 | if (rc > 0) | ||
550 | rc = convert_response(zdev, &ap_msg, crt->outputdata, | ||
551 | crt->outputdatalength); | ||
552 | else { | ||
553 | /* Signal pending or message timed out. */ | ||
554 | ap_cancel_message(zdev->ap_dev, &ap_msg); | ||
555 | if (rc == 0) | ||
556 | /* Message timed out. */ | ||
557 | rc = -ETIME; | ||
558 | } | ||
559 | out_free: | ||
560 | free_page((unsigned long) ap_msg.message); | ||
561 | return rc; | ||
562 | } | ||
563 | |||
564 | /** | ||
565 | * The crypto operations for a PCICC card. | ||
566 | */ | ||
567 | static struct zcrypt_ops zcrypt_pcicc_ops = { | ||
568 | .rsa_modexpo = zcrypt_pcicc_modexpo, | ||
569 | .rsa_modexpo_crt = zcrypt_pcicc_modexpo_crt, | ||
570 | }; | ||
571 | |||
572 | /** | ||
573 | * Probe function for PCICC cards. It always accepts the AP device | ||
574 | * since the bus_match already checked the hardware type. | ||
575 | * @ap_dev: pointer to the AP device. | ||
576 | */ | ||
577 | static int zcrypt_pcicc_probe(struct ap_device *ap_dev) | ||
578 | { | ||
579 | struct zcrypt_device *zdev; | ||
580 | int rc; | ||
581 | |||
582 | zdev = zcrypt_device_alloc(PCICC_MAX_RESPONSE_SIZE); | ||
583 | if (!zdev) | ||
584 | return -ENOMEM; | ||
585 | zdev->ap_dev = ap_dev; | ||
586 | zdev->ops = &zcrypt_pcicc_ops; | ||
587 | zdev->online = 1; | ||
588 | zdev->user_space_type = ZCRYPT_PCICC; | ||
589 | zdev->type_string = "PCICC"; | ||
590 | zdev->min_mod_size = PCICC_MIN_MOD_SIZE; | ||
591 | zdev->max_mod_size = PCICC_MAX_MOD_SIZE; | ||
592 | zdev->speed_rating = PCICC_SPEED_RATING; | ||
593 | ap_dev->reply = &zdev->reply; | ||
594 | ap_dev->private = zdev; | ||
595 | rc = zcrypt_device_register(zdev); | ||
596 | if (rc) | ||
597 | goto out_free; | ||
598 | return 0; | ||
599 | |||
600 | out_free: | ||
601 | ap_dev->private = NULL; | ||
602 | zcrypt_device_free(zdev); | ||
603 | return rc; | ||
604 | } | ||
605 | |||
606 | /** | ||
607 | * This is called to remove the extended PCICC driver information | ||
608 | * if an AP device is removed. | ||
609 | */ | ||
610 | static void zcrypt_pcicc_remove(struct ap_device *ap_dev) | ||
611 | { | ||
612 | struct zcrypt_device *zdev = ap_dev->private; | ||
613 | |||
614 | zcrypt_device_unregister(zdev); | ||
615 | } | ||
616 | |||
617 | int __init zcrypt_pcicc_init(void) | ||
618 | { | ||
619 | return ap_driver_register(&zcrypt_pcicc_driver, THIS_MODULE, "pcicc"); | ||
620 | } | ||
621 | |||
622 | void zcrypt_pcicc_exit(void) | ||
623 | { | ||
624 | ap_driver_unregister(&zcrypt_pcicc_driver); | ||
625 | } | ||
626 | |||
627 | #ifndef CONFIG_ZCRYPT_MONOLITHIC | ||
628 | module_init(zcrypt_pcicc_init); | ||
629 | module_exit(zcrypt_pcicc_exit); | ||
630 | #endif | ||
diff --git a/drivers/s390/crypto/zcrypt_pcicc.h b/drivers/s390/crypto/zcrypt_pcicc.h new file mode 100644 index 00000000000..027bafc7312 --- /dev/null +++ b/drivers/s390/crypto/zcrypt_pcicc.h | |||
@@ -0,0 +1,176 @@ | |||
1 | /* | ||
2 | * linux/drivers/s390/crypto/zcrypt_pcicc.h | ||
3 | * | ||
4 | * zcrypt 2.0.0 | ||
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_PCICC_H_ | ||
29 | #define _ZCRYPT_PCICC_H_ | ||
30 | |||
31 | /** | ||
32 | * The type 6 message family is associated with PCICC or PCIXCC cards. | ||
33 | * | ||
34 | * It contains a message header followed by a CPRB, both of which | ||
35 | * are described below. | ||
36 | * | ||
37 | * Note that all reserved fields must be zeroes. | ||
38 | */ | ||
39 | struct type6_hdr { | ||
40 | unsigned char reserved1; /* 0x00 */ | ||
41 | unsigned char type; /* 0x06 */ | ||
42 | unsigned char reserved2[2]; /* 0x0000 */ | ||
43 | unsigned char right[4]; /* 0x00000000 */ | ||
44 | unsigned char reserved3[2]; /* 0x0000 */ | ||
45 | unsigned char reserved4[2]; /* 0x0000 */ | ||
46 | unsigned char apfs[4]; /* 0x00000000 */ | ||
47 | unsigned int offset1; /* 0x00000058 (offset to CPRB) */ | ||
48 | unsigned int offset2; /* 0x00000000 */ | ||
49 | unsigned int offset3; /* 0x00000000 */ | ||
50 | unsigned int offset4; /* 0x00000000 */ | ||
51 | unsigned char agent_id[16]; /* PCICC: */ | ||
52 | /* 0x0100 */ | ||
53 | /* 0x4343412d4150504c202020 */ | ||
54 | /* 0x010101 */ | ||
55 | /* PCIXCC: */ | ||
56 | /* 0x4341000000000000 */ | ||
57 | /* 0x0000000000000000 */ | ||
58 | unsigned char rqid[2]; /* rqid. internal to 603 */ | ||
59 | unsigned char reserved5[2]; /* 0x0000 */ | ||
60 | unsigned char function_code[2]; /* for PKD, 0x5044 (ascii 'PD') */ | ||
61 | unsigned char reserved6[2]; /* 0x0000 */ | ||
62 | unsigned int ToCardLen1; /* (request CPRB len + 3) & -4 */ | ||
63 | unsigned int ToCardLen2; /* db len 0x00000000 for PKD */ | ||
64 | unsigned int ToCardLen3; /* 0x00000000 */ | ||
65 | unsigned int ToCardLen4; /* 0x00000000 */ | ||
66 | unsigned int FromCardLen1; /* response buffer length */ | ||
67 | unsigned int FromCardLen2; /* db len 0x00000000 for PKD */ | ||
68 | unsigned int FromCardLen3; /* 0x00000000 */ | ||
69 | unsigned int FromCardLen4; /* 0x00000000 */ | ||
70 | } __attribute__((packed)); | ||
71 | |||
72 | /** | ||
73 | * CPRB | ||
74 | * Note that all shorts, ints and longs are little-endian. | ||
75 | * All pointer fields are 32-bits long, and mean nothing | ||
76 | * | ||
77 | * A request CPRB is followed by a request_parameter_block. | ||
78 | * | ||
79 | * The request (or reply) parameter block is organized thus: | ||
80 | * function code | ||
81 | * VUD block | ||
82 | * key block | ||
83 | */ | ||
84 | struct CPRB { | ||
85 | unsigned short cprb_len; /* CPRB length */ | ||
86 | unsigned char cprb_ver_id; /* CPRB version id. */ | ||
87 | unsigned char pad_000; /* Alignment pad byte. */ | ||
88 | unsigned char srpi_rtcode[4]; /* SRPI return code LELONG */ | ||
89 | unsigned char srpi_verb; /* SRPI verb type */ | ||
90 | unsigned char flags; /* flags */ | ||
91 | unsigned char func_id[2]; /* function id */ | ||
92 | unsigned char checkpoint_flag; /* */ | ||
93 | unsigned char resv2; /* reserved */ | ||
94 | unsigned short req_parml; /* request parameter buffer */ | ||
95 | /* length 16-bit little endian */ | ||
96 | unsigned char req_parmp[4]; /* request parameter buffer * | ||
97 | * pointer (means nothing: the * | ||
98 | * parameter buffer follows * | ||
99 | * the CPRB). */ | ||
100 | unsigned char req_datal[4]; /* request data buffer */ | ||
101 | /* length ULELONG */ | ||
102 | unsigned char req_datap[4]; /* request data buffer */ | ||
103 | /* pointer */ | ||
104 | unsigned short rpl_parml; /* reply parameter buffer */ | ||
105 | /* length 16-bit little endian */ | ||
106 | unsigned char pad_001[2]; /* Alignment pad bytes. ULESHORT */ | ||
107 | unsigned char rpl_parmp[4]; /* reply parameter buffer * | ||
108 | * pointer (means nothing: the * | ||
109 | * parameter buffer follows * | ||
110 | * the CPRB). */ | ||
111 | unsigned char rpl_datal[4]; /* reply data buffer len ULELONG */ | ||
112 | unsigned char rpl_datap[4]; /* reply data buffer */ | ||
113 | /* pointer */ | ||
114 | unsigned short ccp_rscode; /* server reason code ULESHORT */ | ||
115 | unsigned short ccp_rtcode; /* server return code ULESHORT */ | ||
116 | unsigned char repd_parml[2]; /* replied parameter len ULESHORT*/ | ||
117 | unsigned char mac_data_len[2]; /* Mac Data Length ULESHORT */ | ||
118 | unsigned char repd_datal[4]; /* replied data length ULELONG */ | ||
119 | unsigned char req_pc[2]; /* PC identifier */ | ||
120 | unsigned char res_origin[8]; /* resource origin */ | ||
121 | unsigned char mac_value[8]; /* Mac Value */ | ||
122 | unsigned char logon_id[8]; /* Logon Identifier */ | ||
123 | unsigned char usage_domain[2]; /* cdx */ | ||
124 | unsigned char resv3[18]; /* reserved for requestor */ | ||
125 | unsigned short svr_namel; /* server name length ULESHORT */ | ||
126 | unsigned char svr_name[8]; /* server name */ | ||
127 | } __attribute__((packed)); | ||
128 | |||
129 | /** | ||
130 | * The type 86 message family is associated with PCICC and PCIXCC cards. | ||
131 | * | ||
132 | * It contains a message header followed by a CPRB. The CPRB is | ||
133 | * the same as the request CPRB, which is described above. | ||
134 | * | ||
135 | * If format is 1, an error condition exists and no data beyond | ||
136 | * the 8-byte message header is of interest. | ||
137 | * | ||
138 | * The non-error message is shown below. | ||
139 | * | ||
140 | * Note that all reserved fields must be zeroes. | ||
141 | */ | ||
142 | struct type86_hdr { | ||
143 | unsigned char reserved1; /* 0x00 */ | ||
144 | unsigned char type; /* 0x86 */ | ||
145 | unsigned char format; /* 0x01 (error) or 0x02 (ok) */ | ||
146 | unsigned char reserved2; /* 0x00 */ | ||
147 | unsigned char reply_code; /* reply code (see above) */ | ||
148 | unsigned char reserved3[3]; /* 0x000000 */ | ||
149 | } __attribute__((packed)); | ||
150 | |||
151 | #define TYPE86_RSP_CODE 0x86 | ||
152 | #define TYPE86_FMT2 0x02 | ||
153 | |||
154 | struct type86_fmt2_ext { | ||
155 | unsigned char reserved[4]; /* 0x00000000 */ | ||
156 | unsigned char apfs[4]; /* final status */ | ||
157 | unsigned int count1; /* length of CPRB + parameters */ | ||
158 | unsigned int offset1; /* offset to CPRB */ | ||
159 | unsigned int count2; /* 0x00000000 */ | ||
160 | unsigned int offset2; /* db offset 0x00000000 for PKD */ | ||
161 | unsigned int count3; /* 0x00000000 */ | ||
162 | unsigned int offset3; /* 0x00000000 */ | ||
163 | unsigned int count4; /* 0x00000000 */ | ||
164 | unsigned int offset4; /* 0x00000000 */ | ||
165 | } __attribute__((packed)); | ||
166 | |||
167 | struct function_and_rules_block { | ||
168 | unsigned char function_code[2]; | ||
169 | unsigned short ulen; | ||
170 | unsigned char only_rule[8]; | ||
171 | } __attribute__((packed)); | ||
172 | |||
173 | int zcrypt_pcicc_init(void); | ||
174 | void zcrypt_pcicc_exit(void); | ||
175 | |||
176 | #endif /* _ZCRYPT_PCICC_H_ */ | ||
diff --git a/drivers/s390/crypto/zcrypt_pcixcc.c b/drivers/s390/crypto/zcrypt_pcixcc.c new file mode 100644 index 00000000000..6064cf58be4 --- /dev/null +++ b/drivers/s390/crypto/zcrypt_pcixcc.c | |||
@@ -0,0 +1,714 @@ | |||
1 | /* | ||
2 | * linux/drivers/s390/crypto/zcrypt_pcixcc.c | ||
3 | * | ||
4 | * zcrypt 2.0.0 | ||
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 | * Ralph Wuerthner <rwuerthn@de.ibm.com> | ||
13 | * | ||
14 | * This program is free software; you can redistribute it and/or modify | ||
15 | * it under the terms of the GNU General Public License as published by | ||
16 | * the Free Software Foundation; either version 2, or (at your option) | ||
17 | * any later version. | ||
18 | * | ||
19 | * This program is distributed in the hope that it will be useful, | ||
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
22 | * GNU General Public License for more details. | ||
23 | * | ||
24 | * You should have received a copy of the GNU General Public License | ||
25 | * along with this program; if not, write to the Free Software | ||
26 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
27 | */ | ||
28 | |||
29 | #include <linux/module.h> | ||
30 | #include <linux/init.h> | ||
31 | #include <linux/err.h> | ||
32 | #include <linux/delay.h> | ||
33 | #include <asm/atomic.h> | ||
34 | #include <asm/uaccess.h> | ||
35 | |||
36 | #include "ap_bus.h" | ||
37 | #include "zcrypt_api.h" | ||
38 | #include "zcrypt_error.h" | ||
39 | #include "zcrypt_pcicc.h" | ||
40 | #include "zcrypt_pcixcc.h" | ||
41 | #include "zcrypt_cca_key.h" | ||
42 | |||
43 | #define PCIXCC_MIN_MOD_SIZE 16 /* 128 bits */ | ||
44 | #define PCIXCC_MIN_MOD_SIZE_OLD 64 /* 512 bits */ | ||
45 | #define PCIXCC_MAX_MOD_SIZE 256 /* 2048 bits */ | ||
46 | |||
47 | #define PCIXCC_MCL2_SPEED_RATING 7870 /* FIXME: needs finetuning */ | ||
48 | #define PCIXCC_MCL3_SPEED_RATING 7870 | ||
49 | #define CEX2C_SPEED_RATING 8540 | ||
50 | |||
51 | #define PCIXCC_MAX_ICA_MESSAGE_SIZE 0x77c /* max size type6 v2 crt message */ | ||
52 | #define PCIXCC_MAX_ICA_RESPONSE_SIZE 0x77c /* max size type86 v2 reply */ | ||
53 | |||
54 | #define PCIXCC_MAX_XCRB_MESSAGE_SIZE (12*1024) | ||
55 | #define PCIXCC_MAX_XCRB_RESPONSE_SIZE PCIXCC_MAX_XCRB_MESSAGE_SIZE | ||
56 | #define PCIXCC_MAX_XCRB_DATA_SIZE (11*1024) | ||
57 | #define PCIXCC_MAX_XCRB_REPLY_SIZE (5*1024) | ||
58 | |||
59 | #define PCIXCC_MAX_RESPONSE_SIZE PCIXCC_MAX_XCRB_RESPONSE_SIZE | ||
60 | |||
61 | #define PCIXCC_CLEANUP_TIME (15*HZ) | ||
62 | |||
63 | static struct ap_device_id zcrypt_pcixcc_ids[] = { | ||
64 | { AP_DEVICE(AP_DEVICE_TYPE_PCIXCC) }, | ||
65 | { AP_DEVICE(AP_DEVICE_TYPE_CEX2C) }, | ||
66 | { /* end of list */ }, | ||
67 | }; | ||
68 | |||
69 | #ifndef CONFIG_ZCRYPT_MONOLITHIC | ||
70 | MODULE_DEVICE_TABLE(ap, zcrypt_pcixcc_ids); | ||
71 | MODULE_AUTHOR("IBM Corporation"); | ||
72 | MODULE_DESCRIPTION("PCIXCC Cryptographic Coprocessor device driver, " | ||
73 | "Copyright 2001, 2006 IBM Corporation"); | ||
74 | MODULE_LICENSE("GPL"); | ||
75 | #endif | ||
76 | |||
77 | static int zcrypt_pcixcc_probe(struct ap_device *ap_dev); | ||
78 | static void zcrypt_pcixcc_remove(struct ap_device *ap_dev); | ||
79 | static void zcrypt_pcixcc_receive(struct ap_device *, struct ap_message *, | ||
80 | struct ap_message *); | ||
81 | |||
82 | static struct ap_driver zcrypt_pcixcc_driver = { | ||
83 | .probe = zcrypt_pcixcc_probe, | ||
84 | .remove = zcrypt_pcixcc_remove, | ||
85 | .receive = zcrypt_pcixcc_receive, | ||
86 | .ids = zcrypt_pcixcc_ids, | ||
87 | }; | ||
88 | |||
89 | /** | ||
90 | * The following is used to initialize the CPRBX passed to the PCIXCC/CEX2C | ||
91 | * card in a type6 message. The 3 fields that must be filled in at execution | ||
92 | * time are req_parml, rpl_parml and usage_domain. | ||
93 | * Everything about this interface is ascii/big-endian, since the | ||
94 | * device does *not* have 'Intel inside'. | ||
95 | * | ||
96 | * The CPRBX is followed immediately by the parm block. | ||
97 | * The parm block contains: | ||
98 | * - function code ('PD' 0x5044 or 'PK' 0x504B) | ||
99 | * - rule block (one of:) | ||
100 | * + 0x000A 'PKCS-1.2' (MCL2 'PD') | ||
101 | * + 0x000A 'ZERO-PAD' (MCL2 'PK') | ||
102 | * + 0x000A 'ZERO-PAD' (MCL3 'PD' or CEX2C 'PD') | ||
103 | * + 0x000A 'MRP ' (MCL3 'PK' or CEX2C 'PK') | ||
104 | * - VUD block | ||
105 | */ | ||
106 | static struct CPRBX static_cprbx = { | ||
107 | .cprb_len = 0x00DC, | ||
108 | .cprb_ver_id = 0x02, | ||
109 | .func_id = {0x54,0x32}, | ||
110 | }; | ||
111 | |||
112 | /** | ||
113 | * Convert a ICAMEX message to a type6 MEX message. | ||
114 | * | ||
115 | * @zdev: crypto device pointer | ||
116 | * @ap_msg: pointer to AP message | ||
117 | * @mex: pointer to user input data | ||
118 | * | ||
119 | * Returns 0 on success or -EFAULT. | ||
120 | */ | ||
121 | static int ICAMEX_msg_to_type6MEX_msgX(struct zcrypt_device *zdev, | ||
122 | struct ap_message *ap_msg, | ||
123 | struct ica_rsa_modexpo *mex) | ||
124 | { | ||
125 | static struct type6_hdr static_type6_hdrX = { | ||
126 | .type = 0x06, | ||
127 | .offset1 = 0x00000058, | ||
128 | .agent_id = {'C','A',}, | ||
129 | .function_code = {'P','K'}, | ||
130 | }; | ||
131 | static struct function_and_rules_block static_pke_fnr = { | ||
132 | .function_code = {'P','K'}, | ||
133 | .ulen = 10, | ||
134 | .only_rule = {'M','R','P',' ',' ',' ',' ',' '} | ||
135 | }; | ||
136 | static struct function_and_rules_block static_pke_fnr_MCL2 = { | ||
137 | .function_code = {'P','K'}, | ||
138 | .ulen = 10, | ||
139 | .only_rule = {'Z','E','R','O','-','P','A','D'} | ||
140 | }; | ||
141 | struct { | ||
142 | struct type6_hdr hdr; | ||
143 | struct CPRBX cprbx; | ||
144 | struct function_and_rules_block fr; | ||
145 | unsigned short length; | ||
146 | char text[0]; | ||
147 | } __attribute__((packed)) *msg = ap_msg->message; | ||
148 | int size; | ||
149 | |||
150 | /* VUD.ciphertext */ | ||
151 | msg->length = mex->inputdatalength + 2; | ||
152 | if (copy_from_user(msg->text, mex->inputdata, mex->inputdatalength)) | ||
153 | return -EFAULT; | ||
154 | |||
155 | /* Set up key which is located after the variable length text. */ | ||
156 | size = zcrypt_type6_mex_key_en(mex, msg->text+mex->inputdatalength, 1); | ||
157 | if (size < 0) | ||
158 | return size; | ||
159 | size += sizeof(*msg) + mex->inputdatalength; | ||
160 | |||
161 | /* message header, cprbx and f&r */ | ||
162 | msg->hdr = static_type6_hdrX; | ||
163 | msg->hdr.ToCardLen1 = size - sizeof(msg->hdr); | ||
164 | msg->hdr.FromCardLen1 = PCIXCC_MAX_ICA_RESPONSE_SIZE - sizeof(msg->hdr); | ||
165 | |||
166 | msg->cprbx = static_cprbx; | ||
167 | msg->cprbx.domain = AP_QID_QUEUE(zdev->ap_dev->qid); | ||
168 | msg->cprbx.rpl_msgbl = msg->hdr.FromCardLen1; | ||
169 | |||
170 | msg->fr = (zdev->user_space_type == ZCRYPT_PCIXCC_MCL2) ? | ||
171 | static_pke_fnr_MCL2 : static_pke_fnr; | ||
172 | |||
173 | msg->cprbx.req_parml = size - sizeof(msg->hdr) - sizeof(msg->cprbx); | ||
174 | |||
175 | ap_msg->length = size; | ||
176 | return 0; | ||
177 | } | ||
178 | |||
179 | /** | ||
180 | * Convert a ICACRT message to a type6 CRT message. | ||
181 | * | ||
182 | * @zdev: crypto device pointer | ||
183 | * @ap_msg: pointer to AP message | ||
184 | * @crt: pointer to user input data | ||
185 | * | ||
186 | * Returns 0 on success or -EFAULT. | ||
187 | */ | ||
188 | static int ICACRT_msg_to_type6CRT_msgX(struct zcrypt_device *zdev, | ||
189 | struct ap_message *ap_msg, | ||
190 | struct ica_rsa_modexpo_crt *crt) | ||
191 | { | ||
192 | static struct type6_hdr static_type6_hdrX = { | ||
193 | .type = 0x06, | ||
194 | .offset1 = 0x00000058, | ||
195 | .agent_id = {'C','A',}, | ||
196 | .function_code = {'P','D'}, | ||
197 | }; | ||
198 | static struct function_and_rules_block static_pkd_fnr = { | ||
199 | .function_code = {'P','D'}, | ||
200 | .ulen = 10, | ||
201 | .only_rule = {'Z','E','R','O','-','P','A','D'} | ||
202 | }; | ||
203 | |||
204 | static struct function_and_rules_block static_pkd_fnr_MCL2 = { | ||
205 | .function_code = {'P','D'}, | ||
206 | .ulen = 10, | ||
207 | .only_rule = {'P','K','C','S','-','1','.','2'} | ||
208 | }; | ||
209 | struct { | ||
210 | struct type6_hdr hdr; | ||
211 | struct CPRBX cprbx; | ||
212 | struct function_and_rules_block fr; | ||
213 | unsigned short length; | ||
214 | char text[0]; | ||
215 | } __attribute__((packed)) *msg = ap_msg->message; | ||
216 | int size; | ||
217 | |||
218 | /* VUD.ciphertext */ | ||
219 | msg->length = crt->inputdatalength + 2; | ||
220 | if (copy_from_user(msg->text, crt->inputdata, crt->inputdatalength)) | ||
221 | return -EFAULT; | ||
222 | |||
223 | /* Set up key which is located after the variable length text. */ | ||
224 | size = zcrypt_type6_crt_key(crt, msg->text + crt->inputdatalength, 1); | ||
225 | if (size < 0) | ||
226 | return size; | ||
227 | size += sizeof(*msg) + crt->inputdatalength; /* total size of msg */ | ||
228 | |||
229 | /* message header, cprbx and f&r */ | ||
230 | msg->hdr = static_type6_hdrX; | ||
231 | msg->hdr.ToCardLen1 = size - sizeof(msg->hdr); | ||
232 | msg->hdr.FromCardLen1 = PCIXCC_MAX_ICA_RESPONSE_SIZE - sizeof(msg->hdr); | ||
233 | |||
234 | msg->cprbx = static_cprbx; | ||
235 | msg->cprbx.domain = AP_QID_QUEUE(zdev->ap_dev->qid); | ||
236 | msg->cprbx.req_parml = msg->cprbx.rpl_msgbl = | ||
237 | size - sizeof(msg->hdr) - sizeof(msg->cprbx); | ||
238 | |||
239 | msg->fr = (zdev->user_space_type == ZCRYPT_PCIXCC_MCL2) ? | ||
240 | static_pkd_fnr_MCL2 : static_pkd_fnr; | ||
241 | |||
242 | ap_msg->length = size; | ||
243 | return 0; | ||
244 | } | ||
245 | |||
246 | /** | ||
247 | * Copy results from a type 86 ICA reply message back to user space. | ||
248 | * | ||
249 | * @zdev: crypto device pointer | ||
250 | * @reply: reply AP message. | ||
251 | * @data: pointer to user output data | ||
252 | * @length: size of user output data | ||
253 | * | ||
254 | * Returns 0 on success or -EINVAL, -EFAULT, -EAGAIN in case of an error. | ||
255 | */ | ||
256 | struct type86x_reply { | ||
257 | struct type86_hdr hdr; | ||
258 | struct type86_fmt2_ext fmt2; | ||
259 | struct CPRBX cprbx; | ||
260 | unsigned char pad[4]; /* 4 byte function code/rules block ? */ | ||
261 | unsigned short length; | ||
262 | char text[0]; | ||
263 | } __attribute__((packed)); | ||
264 | |||
265 | static int convert_type86_ica(struct zcrypt_device *zdev, | ||
266 | struct ap_message *reply, | ||
267 | char __user *outputdata, | ||
268 | unsigned int outputdatalength) | ||
269 | { | ||
270 | static unsigned char static_pad[] = { | ||
271 | 0x00,0x02, | ||
272 | 0x1B,0x7B,0x5D,0xB5,0x75,0x01,0x3D,0xFD, | ||
273 | 0x8D,0xD1,0xC7,0x03,0x2D,0x09,0x23,0x57, | ||
274 | 0x89,0x49,0xB9,0x3F,0xBB,0x99,0x41,0x5B, | ||
275 | 0x75,0x21,0x7B,0x9D,0x3B,0x6B,0x51,0x39, | ||
276 | 0xBB,0x0D,0x35,0xB9,0x89,0x0F,0x93,0xA5, | ||
277 | 0x0B,0x47,0xF1,0xD3,0xBB,0xCB,0xF1,0x9D, | ||
278 | 0x23,0x73,0x71,0xFF,0xF3,0xF5,0x45,0xFB, | ||
279 | 0x61,0x29,0x23,0xFD,0xF1,0x29,0x3F,0x7F, | ||
280 | 0x17,0xB7,0x1B,0xA9,0x19,0xBD,0x57,0xA9, | ||
281 | 0xD7,0x95,0xA3,0xCB,0xED,0x1D,0xDB,0x45, | ||
282 | 0x7D,0x11,0xD1,0x51,0x1B,0xED,0x71,0xE9, | ||
283 | 0xB1,0xD1,0xAB,0xAB,0x21,0x2B,0x1B,0x9F, | ||
284 | 0x3B,0x9F,0xF7,0xF7,0xBD,0x63,0xEB,0xAD, | ||
285 | 0xDF,0xB3,0x6F,0x5B,0xDB,0x8D,0xA9,0x5D, | ||
286 | 0xE3,0x7D,0x77,0x49,0x47,0xF5,0xA7,0xFD, | ||
287 | 0xAB,0x2F,0x27,0x35,0x77,0xD3,0x49,0xC9, | ||
288 | 0x09,0xEB,0xB1,0xF9,0xBF,0x4B,0xCB,0x2B, | ||
289 | 0xEB,0xEB,0x05,0xFF,0x7D,0xC7,0x91,0x8B, | ||
290 | 0x09,0x83,0xB9,0xB9,0x69,0x33,0x39,0x6B, | ||
291 | 0x79,0x75,0x19,0xBF,0xBB,0x07,0x1D,0xBD, | ||
292 | 0x29,0xBF,0x39,0x95,0x93,0x1D,0x35,0xC7, | ||
293 | 0xC9,0x4D,0xE5,0x97,0x0B,0x43,0x9B,0xF1, | ||
294 | 0x16,0x93,0x03,0x1F,0xA5,0xFB,0xDB,0xF3, | ||
295 | 0x27,0x4F,0x27,0x61,0x05,0x1F,0xB9,0x23, | ||
296 | 0x2F,0xC3,0x81,0xA9,0x23,0x71,0x55,0x55, | ||
297 | 0xEB,0xED,0x41,0xE5,0xF3,0x11,0xF1,0x43, | ||
298 | 0x69,0x03,0xBD,0x0B,0x37,0x0F,0x51,0x8F, | ||
299 | 0x0B,0xB5,0x89,0x5B,0x67,0xA9,0xD9,0x4F, | ||
300 | 0x01,0xF9,0x21,0x77,0x37,0x73,0x79,0xC5, | ||
301 | 0x7F,0x51,0xC1,0xCF,0x97,0xA1,0x75,0xAD, | ||
302 | 0x35,0x9D,0xD3,0xD3,0xA7,0x9D,0x5D,0x41, | ||
303 | 0x6F,0x65,0x1B,0xCF,0xA9,0x87,0x91,0x09 | ||
304 | }; | ||
305 | struct type86x_reply *msg = reply->message; | ||
306 | unsigned short service_rc, service_rs; | ||
307 | unsigned int reply_len, pad_len; | ||
308 | char *data; | ||
309 | |||
310 | service_rc = msg->cprbx.ccp_rtcode; | ||
311 | if (unlikely(service_rc != 0)) { | ||
312 | service_rs = msg->cprbx.ccp_rscode; | ||
313 | if (service_rc == 8 && service_rs == 66) { | ||
314 | PDEBUG("Bad block format on PCIXCC/CEX2C\n"); | ||
315 | return -EINVAL; | ||
316 | } | ||
317 | if (service_rc == 8 && service_rs == 65) { | ||
318 | PDEBUG("Probably an even modulus on PCIXCC/CEX2C\n"); | ||
319 | return -EINVAL; | ||
320 | } | ||
321 | if (service_rc == 8 && service_rs == 770) { | ||
322 | PDEBUG("Invalid key length on PCIXCC/CEX2C\n"); | ||
323 | zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE_OLD; | ||
324 | return -EAGAIN; | ||
325 | } | ||
326 | if (service_rc == 8 && service_rs == 783) { | ||
327 | PDEBUG("Extended bitlengths not enabled on PCIXCC/CEX2C\n"); | ||
328 | zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE_OLD; | ||
329 | return -EAGAIN; | ||
330 | } | ||
331 | PRINTK("Unknown service rc/rs (PCIXCC/CEX2C): %d/%d\n", | ||
332 | service_rc, service_rs); | ||
333 | zdev->online = 0; | ||
334 | return -EAGAIN; /* repeat the request on a different device. */ | ||
335 | } | ||
336 | data = msg->text; | ||
337 | reply_len = msg->length - 2; | ||
338 | if (reply_len > outputdatalength) | ||
339 | return -EINVAL; | ||
340 | /** | ||
341 | * For all encipher requests, the length of the ciphertext (reply_len) | ||
342 | * will always equal the modulus length. For MEX decipher requests | ||
343 | * the output needs to get padded. Minimum pad size is 10. | ||
344 | * | ||
345 | * Currently, the cases where padding will be added is for: | ||
346 | * - PCIXCC_MCL2 using a CRT form token (since PKD didn't support | ||
347 | * ZERO-PAD and CRT is only supported for PKD requests) | ||
348 | * - PCICC, always | ||
349 | */ | ||
350 | pad_len = outputdatalength - reply_len; | ||
351 | if (pad_len > 0) { | ||
352 | if (pad_len < 10) | ||
353 | return -EINVAL; | ||
354 | /* 'restore' padding left in the PCICC/PCIXCC card. */ | ||
355 | if (copy_to_user(outputdata, static_pad, pad_len - 1)) | ||
356 | return -EFAULT; | ||
357 | if (put_user(0, outputdata + pad_len - 1)) | ||
358 | return -EFAULT; | ||
359 | } | ||
360 | /* Copy the crypto response to user space. */ | ||
361 | if (copy_to_user(outputdata + pad_len, data, reply_len)) | ||
362 | return -EFAULT; | ||
363 | return 0; | ||
364 | } | ||
365 | |||
366 | static int convert_response_ica(struct zcrypt_device *zdev, | ||
367 | struct ap_message *reply, | ||
368 | char __user *outputdata, | ||
369 | unsigned int outputdatalength) | ||
370 | { | ||
371 | struct type86x_reply *msg = reply->message; | ||
372 | |||
373 | /* Response type byte is the second byte in the response. */ | ||
374 | switch (((unsigned char *) reply->message)[1]) { | ||
375 | case TYPE82_RSP_CODE: | ||
376 | case TYPE88_RSP_CODE: | ||
377 | return convert_error(zdev, reply); | ||
378 | case TYPE86_RSP_CODE: | ||
379 | if (msg->hdr.reply_code) | ||
380 | return convert_error(zdev, reply); | ||
381 | if (msg->cprbx.cprb_ver_id == 0x02) | ||
382 | return convert_type86_ica(zdev, reply, | ||
383 | outputdata, outputdatalength); | ||
384 | /* no break, incorrect cprb version is an unknown response */ | ||
385 | default: /* Unknown response type, this should NEVER EVER happen */ | ||
386 | PRINTK("Unrecognized Message Header: %08x%08x\n", | ||
387 | *(unsigned int *) reply->message, | ||
388 | *(unsigned int *) (reply->message+4)); | ||
389 | zdev->online = 0; | ||
390 | return -EAGAIN; /* repeat the request on a different device. */ | ||
391 | } | ||
392 | } | ||
393 | |||
394 | /** | ||
395 | * This function is called from the AP bus code after a crypto request | ||
396 | * "msg" has finished with the reply message "reply". | ||
397 | * It is called from tasklet context. | ||
398 | * @ap_dev: pointer to the AP device | ||
399 | * @msg: pointer to the AP message | ||
400 | * @reply: pointer to the AP reply message | ||
401 | */ | ||
402 | static void zcrypt_pcixcc_receive(struct ap_device *ap_dev, | ||
403 | struct ap_message *msg, | ||
404 | struct ap_message *reply) | ||
405 | { | ||
406 | static struct error_hdr error_reply = { | ||
407 | .type = TYPE82_RSP_CODE, | ||
408 | .reply_code = REP82_ERROR_MACHINE_FAILURE, | ||
409 | }; | ||
410 | struct type86x_reply *t86r = reply->message; | ||
411 | int length; | ||
412 | |||
413 | /* Copy the reply message to the request message buffer. */ | ||
414 | if (IS_ERR(reply)) | ||
415 | memcpy(msg->message, &error_reply, sizeof(error_reply)); | ||
416 | else if (t86r->hdr.type == TYPE86_RSP_CODE && | ||
417 | t86r->cprbx.cprb_ver_id == 0x02) { | ||
418 | length = sizeof(struct type86x_reply) + t86r->length - 2; | ||
419 | length = min(PCIXCC_MAX_ICA_RESPONSE_SIZE, length); | ||
420 | memcpy(msg->message, reply->message, length); | ||
421 | } else | ||
422 | memcpy(msg->message, reply->message, sizeof error_reply); | ||
423 | complete((struct completion *) msg->private); | ||
424 | } | ||
425 | |||
426 | static atomic_t zcrypt_step = ATOMIC_INIT(0); | ||
427 | |||
428 | /** | ||
429 | * The request distributor calls this function if it picked the PCIXCC/CEX2C | ||
430 | * device to handle a modexpo request. | ||
431 | * @zdev: pointer to zcrypt_device structure that identifies the | ||
432 | * PCIXCC/CEX2C device to the request distributor | ||
433 | * @mex: pointer to the modexpo request buffer | ||
434 | */ | ||
435 | static long zcrypt_pcixcc_modexpo(struct zcrypt_device *zdev, | ||
436 | struct ica_rsa_modexpo *mex) | ||
437 | { | ||
438 | struct ap_message ap_msg; | ||
439 | struct completion work; | ||
440 | int rc; | ||
441 | |||
442 | ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL); | ||
443 | if (!ap_msg.message) | ||
444 | return -ENOMEM; | ||
445 | ap_msg.psmid = (((unsigned long long) current->pid) << 32) + | ||
446 | atomic_inc_return(&zcrypt_step); | ||
447 | ap_msg.private = &work; | ||
448 | rc = ICAMEX_msg_to_type6MEX_msgX(zdev, &ap_msg, mex); | ||
449 | if (rc) | ||
450 | goto out_free; | ||
451 | init_completion(&work); | ||
452 | ap_queue_message(zdev->ap_dev, &ap_msg); | ||
453 | rc = wait_for_completion_interruptible_timeout( | ||
454 | &work, PCIXCC_CLEANUP_TIME); | ||
455 | if (rc > 0) | ||
456 | rc = convert_response_ica(zdev, &ap_msg, mex->outputdata, | ||
457 | mex->outputdatalength); | ||
458 | else { | ||
459 | /* Signal pending or message timed out. */ | ||
460 | ap_cancel_message(zdev->ap_dev, &ap_msg); | ||
461 | if (rc == 0) | ||
462 | /* Message timed out. */ | ||
463 | rc = -ETIME; | ||
464 | } | ||
465 | out_free: | ||
466 | free_page((unsigned long) ap_msg.message); | ||
467 | return rc; | ||
468 | } | ||
469 | |||
470 | /** | ||
471 | * The request distributor calls this function if it picked the PCIXCC/CEX2C | ||
472 | * device to handle a modexpo_crt request. | ||
473 | * @zdev: pointer to zcrypt_device structure that identifies the | ||
474 | * PCIXCC/CEX2C device to the request distributor | ||
475 | * @crt: pointer to the modexpoc_crt request buffer | ||
476 | */ | ||
477 | static long zcrypt_pcixcc_modexpo_crt(struct zcrypt_device *zdev, | ||
478 | struct ica_rsa_modexpo_crt *crt) | ||
479 | { | ||
480 | struct ap_message ap_msg; | ||
481 | struct completion work; | ||
482 | int rc; | ||
483 | |||
484 | ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL); | ||
485 | if (!ap_msg.message) | ||
486 | return -ENOMEM; | ||
487 | ap_msg.psmid = (((unsigned long long) current->pid) << 32) + | ||
488 | atomic_inc_return(&zcrypt_step); | ||
489 | ap_msg.private = &work; | ||
490 | rc = ICACRT_msg_to_type6CRT_msgX(zdev, &ap_msg, crt); | ||
491 | if (rc) | ||
492 | goto out_free; | ||
493 | init_completion(&work); | ||
494 | ap_queue_message(zdev->ap_dev, &ap_msg); | ||
495 | rc = wait_for_completion_interruptible_timeout( | ||
496 | &work, PCIXCC_CLEANUP_TIME); | ||
497 | if (rc > 0) | ||
498 | rc = convert_response_ica(zdev, &ap_msg, crt->outputdata, | ||
499 | crt->outputdatalength); | ||
500 | else { | ||
501 | /* Signal pending or message timed out. */ | ||
502 | ap_cancel_message(zdev->ap_dev, &ap_msg); | ||
503 | if (rc == 0) | ||
504 | /* Message timed out. */ | ||
505 | rc = -ETIME; | ||
506 | } | ||
507 | out_free: | ||
508 | free_page((unsigned long) ap_msg.message); | ||
509 | return rc; | ||
510 | } | ||
511 | |||
512 | /** | ||
513 | * The crypto operations for a PCIXCC/CEX2C card. | ||
514 | */ | ||
515 | static struct zcrypt_ops zcrypt_pcixcc_ops = { | ||
516 | .rsa_modexpo = zcrypt_pcixcc_modexpo, | ||
517 | .rsa_modexpo_crt = zcrypt_pcixcc_modexpo_crt, | ||
518 | }; | ||
519 | |||
520 | /** | ||
521 | * Micro-code detection function. Its sends a message to a pcixcc card | ||
522 | * to find out the microcode level. | ||
523 | * @ap_dev: pointer to the AP device. | ||
524 | */ | ||
525 | static int zcrypt_pcixcc_mcl(struct ap_device *ap_dev) | ||
526 | { | ||
527 | static unsigned char msg[] = { | ||
528 | 0x00,0x06,0x00,0x00,0x00,0x00,0x00,0x00, | ||
529 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
530 | 0x00,0x00,0x00,0x58,0x00,0x00,0x00,0x00, | ||
531 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
532 | 0x43,0x41,0x00,0x00,0x00,0x00,0x00,0x00, | ||
533 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
534 | 0x00,0x00,0x00,0x00,0x50,0x4B,0x00,0x00, | ||
535 | 0x00,0x00,0x01,0xC4,0x00,0x00,0x00,0x00, | ||
536 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
537 | 0x00,0x00,0x07,0x24,0x00,0x00,0x00,0x00, | ||
538 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
539 | 0x00,0xDC,0x02,0x00,0x00,0x00,0x54,0x32, | ||
540 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE8, | ||
541 | 0x00,0x00,0x00,0x00,0x00,0x00,0x07,0x24, | ||
542 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
543 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
544 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
545 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
546 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
547 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
548 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
549 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
550 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
551 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
552 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
553 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
554 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
555 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
556 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
557 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
558 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
559 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
560 | 0x00,0x00,0x00,0x04,0x00,0x00,0x00,0x00, | ||
561 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
562 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
563 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
564 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
565 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, | ||
566 | 0x00,0x00,0x00,0x00,0x50,0x4B,0x00,0x0A, | ||
567 | 0x4D,0x52,0x50,0x20,0x20,0x20,0x20,0x20, | ||
568 | 0x00,0x42,0x00,0x01,0x02,0x03,0x04,0x05, | ||
569 | 0x06,0x07,0x08,0x09,0x0A,0x0B,0x0C,0x0D, | ||
570 | 0x0E,0x0F,0x00,0x11,0x22,0x33,0x44,0x55, | ||
571 | 0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xDD, | ||
572 | 0xEE,0xFF,0xFF,0xEE,0xDD,0xCC,0xBB,0xAA, | ||
573 | 0x99,0x88,0x77,0x66,0x55,0x44,0x33,0x22, | ||
574 | 0x11,0x00,0x01,0x23,0x45,0x67,0x89,0xAB, | ||
575 | 0xCD,0xEF,0xFE,0xDC,0xBA,0x98,0x76,0x54, | ||
576 | 0x32,0x10,0x00,0x9A,0x00,0x98,0x00,0x00, | ||
577 | 0x1E,0x00,0x00,0x94,0x00,0x00,0x00,0x00, | ||
578 | 0x04,0x00,0x00,0x8C,0x00,0x00,0x00,0x40, | ||
579 | 0x02,0x00,0x00,0x40,0xBA,0xE8,0x23,0x3C, | ||
580 | 0x75,0xF3,0x91,0x61,0xD6,0x73,0x39,0xCF, | ||
581 | 0x7B,0x6D,0x8E,0x61,0x97,0x63,0x9E,0xD9, | ||
582 | 0x60,0x55,0xD6,0xC7,0xEF,0xF8,0x1E,0x63, | ||
583 | 0x95,0x17,0xCC,0x28,0x45,0x60,0x11,0xC5, | ||
584 | 0xC4,0x4E,0x66,0xC6,0xE6,0xC3,0xDE,0x8A, | ||
585 | 0x19,0x30,0xCF,0x0E,0xD7,0xAA,0xDB,0x01, | ||
586 | 0xD8,0x00,0xBB,0x8F,0x39,0x9F,0x64,0x28, | ||
587 | 0xF5,0x7A,0x77,0x49,0xCC,0x6B,0xA3,0x91, | ||
588 | 0x97,0x70,0xE7,0x60,0x1E,0x39,0xE1,0xE5, | ||
589 | 0x33,0xE1,0x15,0x63,0x69,0x08,0x80,0x4C, | ||
590 | 0x67,0xC4,0x41,0x8F,0x48,0xDF,0x26,0x98, | ||
591 | 0xF1,0xD5,0x8D,0x88,0xD9,0x6A,0xA4,0x96, | ||
592 | 0xC5,0x84,0xD9,0x30,0x49,0x67,0x7D,0x19, | ||
593 | 0xB1,0xB3,0x45,0x4D,0xB2,0x53,0x9A,0x47, | ||
594 | 0x3C,0x7C,0x55,0xBF,0xCC,0x85,0x00,0x36, | ||
595 | 0xF1,0x3D,0x93,0x53 | ||
596 | }; | ||
597 | unsigned long long psmid; | ||
598 | struct CPRBX *cprbx; | ||
599 | char *reply; | ||
600 | int rc, i; | ||
601 | |||
602 | reply = (void *) get_zeroed_page(GFP_KERNEL); | ||
603 | if (!reply) | ||
604 | return -ENOMEM; | ||
605 | |||
606 | rc = ap_send(ap_dev->qid, 0x0102030405060708ULL, msg, sizeof(msg)); | ||
607 | if (rc) | ||
608 | goto out_free; | ||
609 | |||
610 | /* Wait for the test message to complete. */ | ||
611 | for (i = 0; i < 6; i++) { | ||
612 | mdelay(300); | ||
613 | rc = ap_recv(ap_dev->qid, &psmid, reply, 4096); | ||
614 | if (rc == 0 && psmid == 0x0102030405060708ULL) | ||
615 | break; | ||
616 | } | ||
617 | |||
618 | if (i >= 6) { | ||
619 | /* Got no answer. */ | ||
620 | rc = -ENODEV; | ||
621 | goto out_free; | ||
622 | } | ||
623 | |||
624 | cprbx = (struct CPRBX *) (reply + 48); | ||
625 | if (cprbx->ccp_rtcode == 8 && cprbx->ccp_rscode == 33) | ||
626 | rc = ZCRYPT_PCIXCC_MCL2; | ||
627 | else | ||
628 | rc = ZCRYPT_PCIXCC_MCL3; | ||
629 | out_free: | ||
630 | free_page((unsigned long) reply); | ||
631 | return rc; | ||
632 | } | ||
633 | |||
634 | /** | ||
635 | * Probe function for PCIXCC/CEX2C cards. It always accepts the AP device | ||
636 | * since the bus_match already checked the hardware type. The PCIXCC | ||
637 | * cards come in two flavours: micro code level 2 and micro code level 3. | ||
638 | * This is checked by sending a test message to the device. | ||
639 | * @ap_dev: pointer to the AP device. | ||
640 | */ | ||
641 | static int zcrypt_pcixcc_probe(struct ap_device *ap_dev) | ||
642 | { | ||
643 | struct zcrypt_device *zdev; | ||
644 | int rc; | ||
645 | |||
646 | zdev = zcrypt_device_alloc(PCIXCC_MAX_RESPONSE_SIZE); | ||
647 | if (!zdev) | ||
648 | return -ENOMEM; | ||
649 | zdev->ap_dev = ap_dev; | ||
650 | zdev->ops = &zcrypt_pcixcc_ops; | ||
651 | zdev->online = 1; | ||
652 | if (ap_dev->device_type == AP_DEVICE_TYPE_PCIXCC) { | ||
653 | rc = zcrypt_pcixcc_mcl(ap_dev); | ||
654 | if (rc < 0) { | ||
655 | zcrypt_device_free(zdev); | ||
656 | return rc; | ||
657 | } | ||
658 | zdev->user_space_type = rc; | ||
659 | if (rc == ZCRYPT_PCIXCC_MCL2) { | ||
660 | zdev->type_string = "PCIXCC_MCL2"; | ||
661 | zdev->speed_rating = PCIXCC_MCL2_SPEED_RATING; | ||
662 | zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE_OLD; | ||
663 | zdev->max_mod_size = PCIXCC_MAX_MOD_SIZE; | ||
664 | } else { | ||
665 | zdev->type_string = "PCIXCC_MCL3"; | ||
666 | zdev->speed_rating = PCIXCC_MCL3_SPEED_RATING; | ||
667 | zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE; | ||
668 | zdev->max_mod_size = PCIXCC_MAX_MOD_SIZE; | ||
669 | } | ||
670 | } else { | ||
671 | zdev->user_space_type = ZCRYPT_CEX2C; | ||
672 | zdev->type_string = "CEX2C"; | ||
673 | zdev->speed_rating = CEX2C_SPEED_RATING; | ||
674 | zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE; | ||
675 | zdev->max_mod_size = PCIXCC_MAX_MOD_SIZE; | ||
676 | } | ||
677 | ap_dev->reply = &zdev->reply; | ||
678 | ap_dev->private = zdev; | ||
679 | rc = zcrypt_device_register(zdev); | ||
680 | if (rc) | ||
681 | goto out_free; | ||
682 | return 0; | ||
683 | |||
684 | out_free: | ||
685 | ap_dev->private = NULL; | ||
686 | zcrypt_device_free(zdev); | ||
687 | return rc; | ||
688 | } | ||
689 | |||
690 | /** | ||
691 | * This is called to remove the extended PCIXCC/CEX2C driver information | ||
692 | * if an AP device is removed. | ||
693 | */ | ||
694 | static void zcrypt_pcixcc_remove(struct ap_device *ap_dev) | ||
695 | { | ||
696 | struct zcrypt_device *zdev = ap_dev->private; | ||
697 | |||
698 | zcrypt_device_unregister(zdev); | ||
699 | } | ||
700 | |||
701 | int __init zcrypt_pcixcc_init(void) | ||
702 | { | ||
703 | return ap_driver_register(&zcrypt_pcixcc_driver, THIS_MODULE, "pcixcc"); | ||
704 | } | ||
705 | |||
706 | void zcrypt_pcixcc_exit(void) | ||
707 | { | ||
708 | ap_driver_unregister(&zcrypt_pcixcc_driver); | ||
709 | } | ||
710 | |||
711 | #ifndef CONFIG_ZCRYPT_MONOLITHIC | ||
712 | module_init(zcrypt_pcixcc_init); | ||
713 | module_exit(zcrypt_pcixcc_exit); | ||
714 | #endif | ||
diff --git a/drivers/s390/crypto/zcrypt_pcixcc.h b/drivers/s390/crypto/zcrypt_pcixcc.h new file mode 100644 index 00000000000..d4c44c4d7ad --- /dev/null +++ b/drivers/s390/crypto/zcrypt_pcixcc.h | |||
@@ -0,0 +1,79 @@ | |||
1 | /* | ||
2 | * linux/drivers/s390/crypto/zcrypt_pcixcc.h | ||
3 | * | ||
4 | * zcrypt 2.0.0 | ||
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_PCIXCC_H_ | ||
29 | #define _ZCRYPT_PCIXCC_H_ | ||
30 | |||
31 | /** | ||
32 | * CPRBX | ||
33 | * Note that all shorts and ints are big-endian. | ||
34 | * All pointer fields are 16 bytes long, and mean nothing. | ||
35 | * | ||
36 | * A request CPRB is followed by a request_parameter_block. | ||
37 | * | ||
38 | * The request (or reply) parameter block is organized thus: | ||
39 | * function code | ||
40 | * VUD block | ||
41 | * key block | ||
42 | */ | ||
43 | struct CPRBX { | ||
44 | unsigned short cprb_len; /* CPRB length 220 */ | ||
45 | unsigned char cprb_ver_id; /* CPRB version id. 0x02 */ | ||
46 | unsigned char pad_000[3]; /* Alignment pad bytes */ | ||
47 | unsigned char func_id[2]; /* function id 0x5432 */ | ||
48 | unsigned char cprb_flags[4]; /* Flags */ | ||
49 | unsigned int req_parml; /* request parameter buffer len */ | ||
50 | unsigned int req_datal; /* request data buffer */ | ||
51 | unsigned int rpl_msgbl; /* reply message block length */ | ||
52 | unsigned int rpld_parml; /* replied parameter block len */ | ||
53 | unsigned int rpl_datal; /* reply data block len */ | ||
54 | unsigned int rpld_datal; /* replied data block len */ | ||
55 | unsigned int req_extbl; /* request extension block len */ | ||
56 | unsigned char pad_001[4]; /* reserved */ | ||
57 | unsigned int rpld_extbl; /* replied extension block len */ | ||
58 | unsigned char req_parmb[16]; /* request parm block 'address' */ | ||
59 | unsigned char req_datab[16]; /* request data block 'address' */ | ||
60 | unsigned char rpl_parmb[16]; /* reply parm block 'address' */ | ||
61 | unsigned char rpl_datab[16]; /* reply data block 'address' */ | ||
62 | unsigned char req_extb[16]; /* request extension block 'addr'*/ | ||
63 | unsigned char rpl_extb[16]; /* reply extension block 'addres'*/ | ||
64 | unsigned short ccp_rtcode; /* server return code */ | ||
65 | unsigned short ccp_rscode; /* server reason code */ | ||
66 | unsigned int mac_data_len; /* Mac Data Length */ | ||
67 | unsigned char logon_id[8]; /* Logon Identifier */ | ||
68 | unsigned char mac_value[8]; /* Mac Value */ | ||
69 | unsigned char mac_content_flgs;/* Mac content flag byte */ | ||
70 | unsigned char pad_002; /* Alignment */ | ||
71 | unsigned short domain; /* Domain */ | ||
72 | unsigned char pad_003[12]; /* Domain masks */ | ||
73 | unsigned char pad_004[36]; /* reserved */ | ||
74 | } __attribute__((packed)); | ||
75 | |||
76 | int zcrypt_pcixcc_init(void); | ||
77 | void zcrypt_pcixcc_exit(void); | ||
78 | |||
79 | #endif /* _ZCRYPT_PCIXCC_H_ */ | ||