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-rw-r--r--arch/s390/crypto/des_s390.c559
1 files changed, 364 insertions, 195 deletions
diff --git a/arch/s390/crypto/des_s390.c b/arch/s390/crypto/des_s390.c
index b3f7496a79b4..2aba04852fe3 100644
--- a/arch/s390/crypto/des_s390.c
+++ b/arch/s390/crypto/des_s390.c
@@ -13,9 +13,10 @@
13 * (at your option) any later version. 13 * (at your option) any later version.
14 * 14 *
15 */ 15 */
16
17#include <crypto/algapi.h>
16#include <linux/init.h> 18#include <linux/init.h>
17#include <linux/module.h> 19#include <linux/module.h>
18#include <linux/crypto.h>
19 20
20#include "crypt_s390.h" 21#include "crypt_s390.h"
21#include "crypto_des.h" 22#include "crypto_des.h"
@@ -45,9 +46,10 @@ struct crypt_s390_des3_192_ctx {
45}; 46};
46 47
47static int des_setkey(struct crypto_tfm *tfm, const u8 *key, 48static int des_setkey(struct crypto_tfm *tfm, const u8 *key,
48 unsigned int keylen, u32 *flags) 49 unsigned int keylen)
49{ 50{
50 struct crypt_s390_des_ctx *dctx = crypto_tfm_ctx(tfm); 51 struct crypt_s390_des_ctx *dctx = crypto_tfm_ctx(tfm);
52 u32 *flags = &tfm->crt_flags;
51 int ret; 53 int ret;
52 54
53 /* test if key is valid (not a weak key) */ 55 /* test if key is valid (not a weak key) */
@@ -71,85 +73,159 @@ static void des_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
71 crypt_s390_km(KM_DEA_DECRYPT, dctx->key, out, in, DES_BLOCK_SIZE); 73 crypt_s390_km(KM_DEA_DECRYPT, dctx->key, out, in, DES_BLOCK_SIZE);
72} 74}
73 75
74static unsigned int des_encrypt_ecb(const struct cipher_desc *desc, u8 *out, 76static struct crypto_alg des_alg = {
75 const u8 *in, unsigned int nbytes) 77 .cra_name = "des",
78 .cra_driver_name = "des-s390",
79 .cra_priority = CRYPT_S390_PRIORITY,
80 .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
81 .cra_blocksize = DES_BLOCK_SIZE,
82 .cra_ctxsize = sizeof(struct crypt_s390_des_ctx),
83 .cra_module = THIS_MODULE,
84 .cra_list = LIST_HEAD_INIT(des_alg.cra_list),
85 .cra_u = {
86 .cipher = {
87 .cia_min_keysize = DES_KEY_SIZE,
88 .cia_max_keysize = DES_KEY_SIZE,
89 .cia_setkey = des_setkey,
90 .cia_encrypt = des_encrypt,
91 .cia_decrypt = des_decrypt,
92 }
93 }
94};
95
96static int ecb_desall_crypt(struct blkcipher_desc *desc, long func,
97 void *param, struct blkcipher_walk *walk)
76{ 98{
77 struct crypt_s390_des_ctx *sctx = crypto_tfm_ctx(desc->tfm); 99 int ret = blkcipher_walk_virt(desc, walk);
78 int ret; 100 unsigned int nbytes;
101
102 while ((nbytes = walk->nbytes)) {
103 /* only use complete blocks */
104 unsigned int n = nbytes & ~(DES_BLOCK_SIZE - 1);
105 u8 *out = walk->dst.virt.addr;
106 u8 *in = walk->src.virt.addr;
79 107
80 /* only use complete blocks */ 108 ret = crypt_s390_km(func, param, out, in, n);
81 nbytes &= ~(DES_BLOCK_SIZE - 1); 109 BUG_ON((ret < 0) || (ret != n));
82 ret = crypt_s390_km(KM_DEA_ENCRYPT, sctx->key, out, in, nbytes);
83 BUG_ON((ret < 0) || (ret != nbytes));
84 110
85 return nbytes; 111 nbytes &= DES_BLOCK_SIZE - 1;
112 ret = blkcipher_walk_done(desc, walk, nbytes);
113 }
114
115 return ret;
86} 116}
87 117
88static unsigned int des_decrypt_ecb(const struct cipher_desc *desc, u8 *out, 118static int cbc_desall_crypt(struct blkcipher_desc *desc, long func,
89 const u8 *in, unsigned int nbytes) 119 void *param, struct blkcipher_walk *walk)
90{ 120{
91 struct crypt_s390_des_ctx *sctx = crypto_tfm_ctx(desc->tfm); 121 int ret = blkcipher_walk_virt(desc, walk);
92 int ret; 122 unsigned int nbytes = walk->nbytes;
123
124 if (!nbytes)
125 goto out;
126
127 memcpy(param, walk->iv, DES_BLOCK_SIZE);
128 do {
129 /* only use complete blocks */
130 unsigned int n = nbytes & ~(DES_BLOCK_SIZE - 1);
131 u8 *out = walk->dst.virt.addr;
132 u8 *in = walk->src.virt.addr;
93 133
94 /* only use complete blocks */ 134 ret = crypt_s390_kmc(func, param, out, in, n);
95 nbytes &= ~(DES_BLOCK_SIZE - 1); 135 BUG_ON((ret < 0) || (ret != n));
96 ret = crypt_s390_km(KM_DEA_DECRYPT, sctx->key, out, in, nbytes);
97 BUG_ON((ret < 0) || (ret != nbytes));
98 136
99 return nbytes; 137 nbytes &= DES_BLOCK_SIZE - 1;
138 ret = blkcipher_walk_done(desc, walk, nbytes);
139 } while ((nbytes = walk->nbytes));
140 memcpy(walk->iv, param, DES_BLOCK_SIZE);
141
142out:
143 return ret;
100} 144}
101 145
102static unsigned int des_encrypt_cbc(const struct cipher_desc *desc, u8 *out, 146static int ecb_des_encrypt(struct blkcipher_desc *desc,
103 const u8 *in, unsigned int nbytes) 147 struct scatterlist *dst, struct scatterlist *src,
148 unsigned int nbytes)
104{ 149{
105 struct crypt_s390_des_ctx *sctx = crypto_tfm_ctx(desc->tfm); 150 struct crypt_s390_des_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
106 int ret; 151 struct blkcipher_walk walk;
107 152
108 /* only use complete blocks */ 153 blkcipher_walk_init(&walk, dst, src, nbytes);
109 nbytes &= ~(DES_BLOCK_SIZE - 1); 154 return ecb_desall_crypt(desc, KM_DEA_ENCRYPT, sctx->key, &walk);
155}
110 156
111 memcpy(sctx->iv, desc->info, DES_BLOCK_SIZE); 157static int ecb_des_decrypt(struct blkcipher_desc *desc,
112 ret = crypt_s390_kmc(KMC_DEA_ENCRYPT, &sctx->iv, out, in, nbytes); 158 struct scatterlist *dst, struct scatterlist *src,
113 BUG_ON((ret < 0) || (ret != nbytes)); 159 unsigned int nbytes)
160{
161 struct crypt_s390_des_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
162 struct blkcipher_walk walk;
114 163
115 memcpy(desc->info, sctx->iv, DES_BLOCK_SIZE); 164 blkcipher_walk_init(&walk, dst, src, nbytes);
116 return nbytes; 165 return ecb_desall_crypt(desc, KM_DEA_DECRYPT, sctx->key, &walk);
117} 166}
118 167
119static unsigned int des_decrypt_cbc(const struct cipher_desc *desc, u8 *out, 168static struct crypto_alg ecb_des_alg = {
120 const u8 *in, unsigned int nbytes) 169 .cra_name = "ecb(des)",
170 .cra_driver_name = "ecb-des-s390",
171 .cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
172 .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
173 .cra_blocksize = DES_BLOCK_SIZE,
174 .cra_ctxsize = sizeof(struct crypt_s390_des_ctx),
175 .cra_type = &crypto_blkcipher_type,
176 .cra_module = THIS_MODULE,
177 .cra_list = LIST_HEAD_INIT(ecb_des_alg.cra_list),
178 .cra_u = {
179 .blkcipher = {
180 .min_keysize = DES_KEY_SIZE,
181 .max_keysize = DES_KEY_SIZE,
182 .setkey = des_setkey,
183 .encrypt = ecb_des_encrypt,
184 .decrypt = ecb_des_decrypt,
185 }
186 }
187};
188
189static int cbc_des_encrypt(struct blkcipher_desc *desc,
190 struct scatterlist *dst, struct scatterlist *src,
191 unsigned int nbytes)
121{ 192{
122 struct crypt_s390_des_ctx *sctx = crypto_tfm_ctx(desc->tfm); 193 struct crypt_s390_des_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
123 int ret; 194 struct blkcipher_walk walk;
124 195
125 /* only use complete blocks */ 196 blkcipher_walk_init(&walk, dst, src, nbytes);
126 nbytes &= ~(DES_BLOCK_SIZE - 1); 197 return cbc_desall_crypt(desc, KMC_DEA_ENCRYPT, sctx->iv, &walk);
198}
127 199
128 memcpy(&sctx->iv, desc->info, DES_BLOCK_SIZE); 200static int cbc_des_decrypt(struct blkcipher_desc *desc,
129 ret = crypt_s390_kmc(KMC_DEA_DECRYPT, &sctx->iv, out, in, nbytes); 201 struct scatterlist *dst, struct scatterlist *src,
130 BUG_ON((ret < 0) || (ret != nbytes)); 202 unsigned int nbytes)
203{
204 struct crypt_s390_des_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
205 struct blkcipher_walk walk;
131 206
132 return nbytes; 207 blkcipher_walk_init(&walk, dst, src, nbytes);
208 return cbc_desall_crypt(desc, KMC_DEA_DECRYPT, sctx->iv, &walk);
133} 209}
134 210
135static struct crypto_alg des_alg = { 211static struct crypto_alg cbc_des_alg = {
136 .cra_name = "des", 212 .cra_name = "cbc(des)",
137 .cra_flags = CRYPTO_ALG_TYPE_CIPHER, 213 .cra_driver_name = "cbc-des-s390",
214 .cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
215 .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
138 .cra_blocksize = DES_BLOCK_SIZE, 216 .cra_blocksize = DES_BLOCK_SIZE,
139 .cra_ctxsize = sizeof(struct crypt_s390_des_ctx), 217 .cra_ctxsize = sizeof(struct crypt_s390_des_ctx),
218 .cra_type = &crypto_blkcipher_type,
140 .cra_module = THIS_MODULE, 219 .cra_module = THIS_MODULE,
141 .cra_list = LIST_HEAD_INIT(des_alg.cra_list), 220 .cra_list = LIST_HEAD_INIT(cbc_des_alg.cra_list),
142 .cra_u = { 221 .cra_u = {
143 .cipher = { 222 .blkcipher = {
144 .cia_min_keysize = DES_KEY_SIZE, 223 .min_keysize = DES_KEY_SIZE,
145 .cia_max_keysize = DES_KEY_SIZE, 224 .max_keysize = DES_KEY_SIZE,
146 .cia_setkey = des_setkey, 225 .ivsize = DES_BLOCK_SIZE,
147 .cia_encrypt = des_encrypt, 226 .setkey = des_setkey,
148 .cia_decrypt = des_decrypt, 227 .encrypt = cbc_des_encrypt,
149 .cia_encrypt_ecb = des_encrypt_ecb, 228 .decrypt = cbc_des_decrypt,
150 .cia_decrypt_ecb = des_decrypt_ecb,
151 .cia_encrypt_cbc = des_encrypt_cbc,
152 .cia_decrypt_cbc = des_decrypt_cbc,
153 } 229 }
154 } 230 }
155}; 231};
@@ -167,11 +243,12 @@ static struct crypto_alg des_alg = {
167 * 243 *
168 */ 244 */
169static int des3_128_setkey(struct crypto_tfm *tfm, const u8 *key, 245static int des3_128_setkey(struct crypto_tfm *tfm, const u8 *key,
170 unsigned int keylen, u32 *flags) 246 unsigned int keylen)
171{ 247{
172 int i, ret; 248 int i, ret;
173 struct crypt_s390_des3_128_ctx *dctx = crypto_tfm_ctx(tfm); 249 struct crypt_s390_des3_128_ctx *dctx = crypto_tfm_ctx(tfm);
174 const u8* temp_key = key; 250 const u8 *temp_key = key;
251 u32 *flags = &tfm->crt_flags;
175 252
176 if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE))) { 253 if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE))) {
177 *flags |= CRYPTO_TFM_RES_BAD_KEY_SCHED; 254 *flags |= CRYPTO_TFM_RES_BAD_KEY_SCHED;
@@ -202,89 +279,111 @@ static void des3_128_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
202 DES3_128_BLOCK_SIZE); 279 DES3_128_BLOCK_SIZE);
203} 280}
204 281
205static unsigned int des3_128_encrypt_ecb(const struct cipher_desc *desc, 282static struct crypto_alg des3_128_alg = {
206 u8 *out, const u8 *in, 283 .cra_name = "des3_ede128",
207 unsigned int nbytes) 284 .cra_driver_name = "des3_ede128-s390",
208{ 285 .cra_priority = CRYPT_S390_PRIORITY,
209 struct crypt_s390_des3_128_ctx *sctx = crypto_tfm_ctx(desc->tfm); 286 .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
210 int ret; 287 .cra_blocksize = DES3_128_BLOCK_SIZE,
288 .cra_ctxsize = sizeof(struct crypt_s390_des3_128_ctx),
289 .cra_module = THIS_MODULE,
290 .cra_list = LIST_HEAD_INIT(des3_128_alg.cra_list),
291 .cra_u = {
292 .cipher = {
293 .cia_min_keysize = DES3_128_KEY_SIZE,
294 .cia_max_keysize = DES3_128_KEY_SIZE,
295 .cia_setkey = des3_128_setkey,
296 .cia_encrypt = des3_128_encrypt,
297 .cia_decrypt = des3_128_decrypt,
298 }
299 }
300};
211 301
212 /* only use complete blocks */ 302static int ecb_des3_128_encrypt(struct blkcipher_desc *desc,
213 nbytes &= ~(DES3_128_BLOCK_SIZE - 1); 303 struct scatterlist *dst,
214 ret = crypt_s390_km(KM_TDEA_128_ENCRYPT, sctx->key, out, in, nbytes); 304 struct scatterlist *src, unsigned int nbytes)
215 BUG_ON((ret < 0) || (ret != nbytes)); 305{
306 struct crypt_s390_des3_128_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
307 struct blkcipher_walk walk;
216 308
217 return nbytes; 309 blkcipher_walk_init(&walk, dst, src, nbytes);
310 return ecb_desall_crypt(desc, KM_TDEA_128_ENCRYPT, sctx->key, &walk);
218} 311}
219 312
220static unsigned int des3_128_decrypt_ecb(const struct cipher_desc *desc, 313static int ecb_des3_128_decrypt(struct blkcipher_desc *desc,
221 u8 *out, const u8 *in, 314 struct scatterlist *dst,
222 unsigned int nbytes) 315 struct scatterlist *src, unsigned int nbytes)
223{ 316{
224 struct crypt_s390_des3_128_ctx *sctx = crypto_tfm_ctx(desc->tfm); 317 struct crypt_s390_des3_128_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
225 int ret; 318 struct blkcipher_walk walk;
226 319
227 /* only use complete blocks */ 320 blkcipher_walk_init(&walk, dst, src, nbytes);
228 nbytes &= ~(DES3_128_BLOCK_SIZE - 1); 321 return ecb_desall_crypt(desc, KM_TDEA_128_DECRYPT, sctx->key, &walk);
229 ret = crypt_s390_km(KM_TDEA_128_DECRYPT, sctx->key, out, in, nbytes);
230 BUG_ON((ret < 0) || (ret != nbytes));
231
232 return nbytes;
233} 322}
234 323
235static unsigned int des3_128_encrypt_cbc(const struct cipher_desc *desc, 324static struct crypto_alg ecb_des3_128_alg = {
236 u8 *out, const u8 *in, 325 .cra_name = "ecb(des3_ede128)",
237 unsigned int nbytes) 326 .cra_driver_name = "ecb-des3_ede128-s390",
238{ 327 .cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
239 struct crypt_s390_des3_128_ctx *sctx = crypto_tfm_ctx(desc->tfm); 328 .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
240 int ret; 329 .cra_blocksize = DES3_128_BLOCK_SIZE,
241 330 .cra_ctxsize = sizeof(struct crypt_s390_des3_128_ctx),
242 /* only use complete blocks */ 331 .cra_type = &crypto_blkcipher_type,
243 nbytes &= ~(DES3_128_BLOCK_SIZE - 1); 332 .cra_module = THIS_MODULE,
333 .cra_list = LIST_HEAD_INIT(
334 ecb_des3_128_alg.cra_list),
335 .cra_u = {
336 .blkcipher = {
337 .min_keysize = DES3_128_KEY_SIZE,
338 .max_keysize = DES3_128_KEY_SIZE,
339 .setkey = des3_128_setkey,
340 .encrypt = ecb_des3_128_encrypt,
341 .decrypt = ecb_des3_128_decrypt,
342 }
343 }
344};
244 345
245 memcpy(sctx->iv, desc->info, DES3_128_BLOCK_SIZE); 346static int cbc_des3_128_encrypt(struct blkcipher_desc *desc,
246 ret = crypt_s390_kmc(KMC_TDEA_128_ENCRYPT, &sctx->iv, out, in, nbytes); 347 struct scatterlist *dst,
247 BUG_ON((ret < 0) || (ret != nbytes)); 348 struct scatterlist *src, unsigned int nbytes)
349{
350 struct crypt_s390_des3_128_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
351 struct blkcipher_walk walk;
248 352
249 memcpy(desc->info, sctx->iv, DES3_128_BLOCK_SIZE); 353 blkcipher_walk_init(&walk, dst, src, nbytes);
250 return nbytes; 354 return cbc_desall_crypt(desc, KMC_TDEA_128_ENCRYPT, sctx->iv, &walk);
251} 355}
252 356
253static unsigned int des3_128_decrypt_cbc(const struct cipher_desc *desc, 357static int cbc_des3_128_decrypt(struct blkcipher_desc *desc,
254 u8 *out, const u8 *in, 358 struct scatterlist *dst,
255 unsigned int nbytes) 359 struct scatterlist *src, unsigned int nbytes)
256{ 360{
257 struct crypt_s390_des3_128_ctx *sctx = crypto_tfm_ctx(desc->tfm); 361 struct crypt_s390_des3_128_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
258 int ret; 362 struct blkcipher_walk walk;
259
260 /* only use complete blocks */
261 nbytes &= ~(DES3_128_BLOCK_SIZE - 1);
262
263 memcpy(&sctx->iv, desc->info, DES3_128_BLOCK_SIZE);
264 ret = crypt_s390_kmc(KMC_TDEA_128_DECRYPT, &sctx->iv, out, in, nbytes);
265 BUG_ON((ret < 0) || (ret != nbytes));
266 363
267 return nbytes; 364 blkcipher_walk_init(&walk, dst, src, nbytes);
365 return cbc_desall_crypt(desc, KMC_TDEA_128_DECRYPT, sctx->iv, &walk);
268} 366}
269 367
270static struct crypto_alg des3_128_alg = { 368static struct crypto_alg cbc_des3_128_alg = {
271 .cra_name = "des3_ede128", 369 .cra_name = "cbc(des3_ede128)",
272 .cra_flags = CRYPTO_ALG_TYPE_CIPHER, 370 .cra_driver_name = "cbc-des3_ede128-s390",
371 .cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
372 .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
273 .cra_blocksize = DES3_128_BLOCK_SIZE, 373 .cra_blocksize = DES3_128_BLOCK_SIZE,
274 .cra_ctxsize = sizeof(struct crypt_s390_des3_128_ctx), 374 .cra_ctxsize = sizeof(struct crypt_s390_des3_128_ctx),
375 .cra_type = &crypto_blkcipher_type,
275 .cra_module = THIS_MODULE, 376 .cra_module = THIS_MODULE,
276 .cra_list = LIST_HEAD_INIT(des3_128_alg.cra_list), 377 .cra_list = LIST_HEAD_INIT(
378 cbc_des3_128_alg.cra_list),
277 .cra_u = { 379 .cra_u = {
278 .cipher = { 380 .blkcipher = {
279 .cia_min_keysize = DES3_128_KEY_SIZE, 381 .min_keysize = DES3_128_KEY_SIZE,
280 .cia_max_keysize = DES3_128_KEY_SIZE, 382 .max_keysize = DES3_128_KEY_SIZE,
281 .cia_setkey = des3_128_setkey, 383 .ivsize = DES3_128_BLOCK_SIZE,
282 .cia_encrypt = des3_128_encrypt, 384 .setkey = des3_128_setkey,
283 .cia_decrypt = des3_128_decrypt, 385 .encrypt = cbc_des3_128_encrypt,
284 .cia_encrypt_ecb = des3_128_encrypt_ecb, 386 .decrypt = cbc_des3_128_decrypt,
285 .cia_decrypt_ecb = des3_128_decrypt_ecb,
286 .cia_encrypt_cbc = des3_128_encrypt_cbc,
287 .cia_decrypt_cbc = des3_128_decrypt_cbc,
288 } 387 }
289 } 388 }
290}; 389};
@@ -303,11 +402,12 @@ static struct crypto_alg des3_128_alg = {
303 * 402 *
304 */ 403 */
305static int des3_192_setkey(struct crypto_tfm *tfm, const u8 *key, 404static int des3_192_setkey(struct crypto_tfm *tfm, const u8 *key,
306 unsigned int keylen, u32 *flags) 405 unsigned int keylen)
307{ 406{
308 int i, ret; 407 int i, ret;
309 struct crypt_s390_des3_192_ctx *dctx = crypto_tfm_ctx(tfm); 408 struct crypt_s390_des3_192_ctx *dctx = crypto_tfm_ctx(tfm);
310 const u8* temp_key = key; 409 const u8 *temp_key = key;
410 u32 *flags = &tfm->crt_flags;
311 411
312 if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE) && 412 if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE) &&
313 memcmp(&key[DES_KEY_SIZE], &key[DES_KEY_SIZE * 2], 413 memcmp(&key[DES_KEY_SIZE], &key[DES_KEY_SIZE * 2],
@@ -341,89 +441,111 @@ static void des3_192_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
341 DES3_192_BLOCK_SIZE); 441 DES3_192_BLOCK_SIZE);
342} 442}
343 443
344static unsigned int des3_192_encrypt_ecb(const struct cipher_desc *desc, 444static struct crypto_alg des3_192_alg = {
345 u8 *out, const u8 *in, 445 .cra_name = "des3_ede",
346 unsigned int nbytes) 446 .cra_driver_name = "des3_ede-s390",
347{ 447 .cra_priority = CRYPT_S390_PRIORITY,
348 struct crypt_s390_des3_192_ctx *sctx = crypto_tfm_ctx(desc->tfm); 448 .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
349 int ret; 449 .cra_blocksize = DES3_192_BLOCK_SIZE,
450 .cra_ctxsize = sizeof(struct crypt_s390_des3_192_ctx),
451 .cra_module = THIS_MODULE,
452 .cra_list = LIST_HEAD_INIT(des3_192_alg.cra_list),
453 .cra_u = {
454 .cipher = {
455 .cia_min_keysize = DES3_192_KEY_SIZE,
456 .cia_max_keysize = DES3_192_KEY_SIZE,
457 .cia_setkey = des3_192_setkey,
458 .cia_encrypt = des3_192_encrypt,
459 .cia_decrypt = des3_192_decrypt,
460 }
461 }
462};
350 463
351 /* only use complete blocks */ 464static int ecb_des3_192_encrypt(struct blkcipher_desc *desc,
352 nbytes &= ~(DES3_192_BLOCK_SIZE - 1); 465 struct scatterlist *dst,
353 ret = crypt_s390_km(KM_TDEA_192_ENCRYPT, sctx->key, out, in, nbytes); 466 struct scatterlist *src, unsigned int nbytes)
354 BUG_ON((ret < 0) || (ret != nbytes)); 467{
468 struct crypt_s390_des3_192_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
469 struct blkcipher_walk walk;
355 470
356 return nbytes; 471 blkcipher_walk_init(&walk, dst, src, nbytes);
472 return ecb_desall_crypt(desc, KM_TDEA_192_ENCRYPT, sctx->key, &walk);
357} 473}
358 474
359static unsigned int des3_192_decrypt_ecb(const struct cipher_desc *desc, 475static int ecb_des3_192_decrypt(struct blkcipher_desc *desc,
360 u8 *out, const u8 *in, 476 struct scatterlist *dst,
361 unsigned int nbytes) 477 struct scatterlist *src, unsigned int nbytes)
362{ 478{
363 struct crypt_s390_des3_192_ctx *sctx = crypto_tfm_ctx(desc->tfm); 479 struct crypt_s390_des3_192_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
364 int ret; 480 struct blkcipher_walk walk;
365
366 /* only use complete blocks */
367 nbytes &= ~(DES3_192_BLOCK_SIZE - 1);
368 ret = crypt_s390_km(KM_TDEA_192_DECRYPT, sctx->key, out, in, nbytes);
369 BUG_ON((ret < 0) || (ret != nbytes));
370 481
371 return nbytes; 482 blkcipher_walk_init(&walk, dst, src, nbytes);
483 return ecb_desall_crypt(desc, KM_TDEA_192_DECRYPT, sctx->key, &walk);
372} 484}
373 485
374static unsigned int des3_192_encrypt_cbc(const struct cipher_desc *desc, 486static struct crypto_alg ecb_des3_192_alg = {
375 u8 *out, const u8 *in, 487 .cra_name = "ecb(des3_ede)",
376 unsigned int nbytes) 488 .cra_driver_name = "ecb-des3_ede-s390",
377{ 489 .cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
378 struct crypt_s390_des3_192_ctx *sctx = crypto_tfm_ctx(desc->tfm); 490 .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
379 int ret; 491 .cra_blocksize = DES3_192_BLOCK_SIZE,
380 492 .cra_ctxsize = sizeof(struct crypt_s390_des3_192_ctx),
381 /* only use complete blocks */ 493 .cra_type = &crypto_blkcipher_type,
382 nbytes &= ~(DES3_192_BLOCK_SIZE - 1); 494 .cra_module = THIS_MODULE,
495 .cra_list = LIST_HEAD_INIT(
496 ecb_des3_192_alg.cra_list),
497 .cra_u = {
498 .blkcipher = {
499 .min_keysize = DES3_192_KEY_SIZE,
500 .max_keysize = DES3_192_KEY_SIZE,
501 .setkey = des3_192_setkey,
502 .encrypt = ecb_des3_192_encrypt,
503 .decrypt = ecb_des3_192_decrypt,
504 }
505 }
506};
383 507
384 memcpy(sctx->iv, desc->info, DES3_192_BLOCK_SIZE); 508static int cbc_des3_192_encrypt(struct blkcipher_desc *desc,
385 ret = crypt_s390_kmc(KMC_TDEA_192_ENCRYPT, &sctx->iv, out, in, nbytes); 509 struct scatterlist *dst,
386 BUG_ON((ret < 0) || (ret != nbytes)); 510 struct scatterlist *src, unsigned int nbytes)
511{
512 struct crypt_s390_des3_192_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
513 struct blkcipher_walk walk;
387 514
388 memcpy(desc->info, sctx->iv, DES3_192_BLOCK_SIZE); 515 blkcipher_walk_init(&walk, dst, src, nbytes);
389 return nbytes; 516 return cbc_desall_crypt(desc, KMC_TDEA_192_ENCRYPT, sctx->iv, &walk);
390} 517}
391 518
392static unsigned int des3_192_decrypt_cbc(const struct cipher_desc *desc, 519static int cbc_des3_192_decrypt(struct blkcipher_desc *desc,
393 u8 *out, const u8 *in, 520 struct scatterlist *dst,
394 unsigned int nbytes) 521 struct scatterlist *src, unsigned int nbytes)
395{ 522{
396 struct crypt_s390_des3_192_ctx *sctx = crypto_tfm_ctx(desc->tfm); 523 struct crypt_s390_des3_192_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
397 int ret; 524 struct blkcipher_walk walk;
398 525
399 /* only use complete blocks */ 526 blkcipher_walk_init(&walk, dst, src, nbytes);
400 nbytes &= ~(DES3_192_BLOCK_SIZE - 1); 527 return cbc_desall_crypt(desc, KMC_TDEA_192_DECRYPT, sctx->iv, &walk);
401
402 memcpy(&sctx->iv, desc->info, DES3_192_BLOCK_SIZE);
403 ret = crypt_s390_kmc(KMC_TDEA_192_DECRYPT, &sctx->iv, out, in, nbytes);
404 BUG_ON((ret < 0) || (ret != nbytes));
405
406 return nbytes;
407} 528}
408 529
409static struct crypto_alg des3_192_alg = { 530static struct crypto_alg cbc_des3_192_alg = {
410 .cra_name = "des3_ede", 531 .cra_name = "cbc(des3_ede)",
411 .cra_flags = CRYPTO_ALG_TYPE_CIPHER, 532 .cra_driver_name = "cbc-des3_ede-s390",
533 .cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
534 .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
412 .cra_blocksize = DES3_192_BLOCK_SIZE, 535 .cra_blocksize = DES3_192_BLOCK_SIZE,
413 .cra_ctxsize = sizeof(struct crypt_s390_des3_192_ctx), 536 .cra_ctxsize = sizeof(struct crypt_s390_des3_192_ctx),
537 .cra_type = &crypto_blkcipher_type,
414 .cra_module = THIS_MODULE, 538 .cra_module = THIS_MODULE,
415 .cra_list = LIST_HEAD_INIT(des3_192_alg.cra_list), 539 .cra_list = LIST_HEAD_INIT(
540 cbc_des3_192_alg.cra_list),
416 .cra_u = { 541 .cra_u = {
417 .cipher = { 542 .blkcipher = {
418 .cia_min_keysize = DES3_192_KEY_SIZE, 543 .min_keysize = DES3_192_KEY_SIZE,
419 .cia_max_keysize = DES3_192_KEY_SIZE, 544 .max_keysize = DES3_192_KEY_SIZE,
420 .cia_setkey = des3_192_setkey, 545 .ivsize = DES3_192_BLOCK_SIZE,
421 .cia_encrypt = des3_192_encrypt, 546 .setkey = des3_192_setkey,
422 .cia_decrypt = des3_192_decrypt, 547 .encrypt = cbc_des3_192_encrypt,
423 .cia_encrypt_ecb = des3_192_encrypt_ecb, 548 .decrypt = cbc_des3_192_decrypt,
424 .cia_decrypt_ecb = des3_192_decrypt_ecb,
425 .cia_encrypt_cbc = des3_192_encrypt_cbc,
426 .cia_decrypt_cbc = des3_192_decrypt_cbc,
427 } 549 }
428 } 550 }
429}; 551};
@@ -437,22 +559,69 @@ static int init(void)
437 !crypt_s390_func_available(KM_TDEA_192_ENCRYPT)) 559 !crypt_s390_func_available(KM_TDEA_192_ENCRYPT))
438 return -ENOSYS; 560 return -ENOSYS;
439 561
440 ret |= (crypto_register_alg(&des_alg) == 0) ? 0:1; 562 ret = crypto_register_alg(&des_alg);
441 ret |= (crypto_register_alg(&des3_128_alg) == 0) ? 0:2; 563 if (ret)
442 ret |= (crypto_register_alg(&des3_192_alg) == 0) ? 0:4; 564 goto des_err;
443 if (ret) { 565 ret = crypto_register_alg(&ecb_des_alg);
444 crypto_unregister_alg(&des3_192_alg); 566 if (ret)
445 crypto_unregister_alg(&des3_128_alg); 567 goto ecb_des_err;
446 crypto_unregister_alg(&des_alg); 568 ret = crypto_register_alg(&cbc_des_alg);
447 return -EEXIST; 569 if (ret)
448 } 570 goto cbc_des_err;
449 return 0; 571
572 ret = crypto_register_alg(&des3_128_alg);
573 if (ret)
574 goto des3_128_err;
575 ret = crypto_register_alg(&ecb_des3_128_alg);
576 if (ret)
577 goto ecb_des3_128_err;
578 ret = crypto_register_alg(&cbc_des3_128_alg);
579 if (ret)
580 goto cbc_des3_128_err;
581
582 ret = crypto_register_alg(&des3_192_alg);
583 if (ret)
584 goto des3_192_err;
585 ret = crypto_register_alg(&ecb_des3_192_alg);
586 if (ret)
587 goto ecb_des3_192_err;
588 ret = crypto_register_alg(&cbc_des3_192_alg);
589 if (ret)
590 goto cbc_des3_192_err;
591
592out:
593 return ret;
594
595cbc_des3_192_err:
596 crypto_unregister_alg(&ecb_des3_192_alg);
597ecb_des3_192_err:
598 crypto_unregister_alg(&des3_192_alg);
599des3_192_err:
600 crypto_unregister_alg(&cbc_des3_128_alg);
601cbc_des3_128_err:
602 crypto_unregister_alg(&ecb_des3_128_alg);
603ecb_des3_128_err:
604 crypto_unregister_alg(&des3_128_alg);
605des3_128_err:
606 crypto_unregister_alg(&cbc_des_alg);
607cbc_des_err:
608 crypto_unregister_alg(&ecb_des_alg);
609ecb_des_err:
610 crypto_unregister_alg(&des_alg);
611des_err:
612 goto out;
450} 613}
451 614
452static void __exit fini(void) 615static void __exit fini(void)
453{ 616{
617 crypto_unregister_alg(&cbc_des3_192_alg);
618 crypto_unregister_alg(&ecb_des3_192_alg);
454 crypto_unregister_alg(&des3_192_alg); 619 crypto_unregister_alg(&des3_192_alg);
620 crypto_unregister_alg(&cbc_des3_128_alg);
621 crypto_unregister_alg(&ecb_des3_128_alg);
455 crypto_unregister_alg(&des3_128_alg); 622 crypto_unregister_alg(&des3_128_alg);
623 crypto_unregister_alg(&cbc_des_alg);
624 crypto_unregister_alg(&ecb_des_alg);
456 crypto_unregister_alg(&des_alg); 625 crypto_unregister_alg(&des_alg);
457} 626}
458 627
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-11 09:07:12 -0500