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2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f 
 kernel/arch/powerpc/crypto/aes-spe-glue.c
....@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /*
23  * Glue code for AES implementation for SPE instructions (PPC)
34  *
....@@ -5,12 +6,6 @@
56  * about the SPE registers so it can run from interrupt context.
67  *
78  * Copyright (c) 2015 Markus Stockhausen <stockhausen@collogia.de>
8
- *
9
- * This program is free software; you can redistribute it and/or modify it
10
- * under the terms of the GNU General Public License as published by the Free
11
- * Software Foundation; either version 2 of the License, or (at your option)
12
- * any later version.
13
- *
149  */
1510 
1611 #include <crypto/aes.h>
....@@ -22,7 +17,10 @@
2217 #include <asm/byteorder.h>
2318 #include <asm/switch_to.h>
2419 #include <crypto/algapi.h>
20
+#include <crypto/internal/skcipher.h>
2521 #include <crypto/xts.h>
22
+#include <crypto/gf128mul.h>
23
+#include <crypto/scatterwalk.h>
2624 
2725 /*
2826  * MAX_BYTES defines the number of bytes that are allowed to be processed
....@@ -96,13 +94,6 @@
9694 {
9795 	struct ppc_aes_ctx *ctx = crypto_tfm_ctx(tfm);
9896 
99
-	if (key_len != AES_KEYSIZE_128 &&
100
-	    key_len != AES_KEYSIZE_192 &&
101
-	    key_len != AES_KEYSIZE_256) {
102
-		tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
103
-		return -EINVAL;
104
-	}
105
-
10697 	switch (key_len) {
10798 	case AES_KEYSIZE_128:
10899 		ctx->rounds = 4;
....@@ -116,6 +107,8 @@
116107 		ctx->rounds = 6;
117108 		ppc_expand_key_256(ctx->key_enc, in_key);
118109 		break;
110
+	default:
111
+		return -EINVAL;
119112 	}
120113 
121114 	ppc_generate_decrypt_key(ctx->key_dec, ctx->key_enc, key_len);
....@@ -123,24 +116,23 @@
123116 	return 0;
124117 }
125118 
126
-static int ppc_xts_setkey(struct crypto_tfm *tfm, const u8 *in_key,
119
+static int ppc_aes_setkey_skcipher(struct crypto_skcipher *tfm,
120
+				   const u8 *in_key, unsigned int key_len)
121
+{
122
+	return ppc_aes_setkey(crypto_skcipher_tfm(tfm), in_key, key_len);
123
+}
124
+
125
+static int ppc_xts_setkey(struct crypto_skcipher *tfm, const u8 *in_key,
127126 		   unsigned int key_len)
128127 {
129
-	struct ppc_xts_ctx *ctx = crypto_tfm_ctx(tfm);
128
+	struct ppc_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
130129 	int err;
131130 
132
-	err = xts_check_key(tfm, in_key, key_len);
131
+	err = xts_verify_key(tfm, in_key, key_len);
133132 	if (err)
134133 		return err;
135134 
136135 	key_len >>= 1;
137
-
138
-	if (key_len != AES_KEYSIZE_128 &&
139
-	    key_len != AES_KEYSIZE_192 &&
140
-	    key_len != AES_KEYSIZE_256) {
141
-		tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
142
-		return -EINVAL;
143
-	}
144136 
145137 	switch (key_len) {
146138 	case AES_KEYSIZE_128:
....@@ -158,6 +150,8 @@
158150 		ppc_expand_key_256(ctx->key_enc, in_key);
159151 		ppc_expand_key_256(ctx->key_twk, in_key + AES_KEYSIZE_256);
160152 		break;
153
+	default:
154
+		return -EINVAL;
161155 	}
162156 
163157 	ppc_generate_decrypt_key(ctx->key_dec, ctx->key_enc, key_len);
....@@ -183,208 +177,229 @@
183177 	spe_end();
184178 }
185179 
186
-static int ppc_ecb_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
187
-			   struct scatterlist *src, unsigned int nbytes)
180
+static int ppc_ecb_crypt(struct skcipher_request *req, bool enc)
188181 {
189
-	struct ppc_aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
190
-	struct blkcipher_walk walk;
191
-	unsigned int ubytes;
182
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
183
+	struct ppc_aes_ctx *ctx = crypto_skcipher_ctx(tfm);
184
+	struct skcipher_walk walk;
185
+	unsigned int nbytes;
192186 	int err;
193187 
194
-	desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
195
-	blkcipher_walk_init(&walk, dst, src, nbytes);
196
-	err = blkcipher_walk_virt(desc, &walk);
188
+	err = skcipher_walk_virt(&walk, req, false);
197189 
198
-	while ((nbytes = walk.nbytes)) {
199
-		ubytes = nbytes > MAX_BYTES ?
200
-			 nbytes - MAX_BYTES : nbytes & (AES_BLOCK_SIZE - 1);
201
-		nbytes -= ubytes;
190
+	while ((nbytes = walk.nbytes) != 0) {
191
+		nbytes = min_t(unsigned int, nbytes, MAX_BYTES);
192
+		nbytes = round_down(nbytes, AES_BLOCK_SIZE);
202193 
203194 		spe_begin();
204
-		ppc_encrypt_ecb(walk.dst.virt.addr, walk.src.virt.addr,
205
-				ctx->key_enc, ctx->rounds, nbytes);
195
+		if (enc)
196
+			ppc_encrypt_ecb(walk.dst.virt.addr, walk.src.virt.addr,
197
+					ctx->key_enc, ctx->rounds, nbytes);
198
+		else
199
+			ppc_decrypt_ecb(walk.dst.virt.addr, walk.src.virt.addr,
200
+					ctx->key_dec, ctx->rounds, nbytes);
206201 		spe_end();
207202 
208
-		err = blkcipher_walk_done(desc, &walk, ubytes);
203
+		err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
209204 	}
210205 
211206 	return err;
212207 }
213208 
214
-static int ppc_ecb_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
215
-			   struct scatterlist *src, unsigned int nbytes)
209
+static int ppc_ecb_encrypt(struct skcipher_request *req)
216210 {
217
-	struct ppc_aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
218
-	struct blkcipher_walk walk;
219
-	unsigned int ubytes;
211
+	return ppc_ecb_crypt(req, true);
212
+}
213
+
214
+static int ppc_ecb_decrypt(struct skcipher_request *req)
215
+{
216
+	return ppc_ecb_crypt(req, false);
217
+}
218
+
219
+static int ppc_cbc_crypt(struct skcipher_request *req, bool enc)
220
+{
221
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
222
+	struct ppc_aes_ctx *ctx = crypto_skcipher_ctx(tfm);
223
+	struct skcipher_walk walk;
224
+	unsigned int nbytes;
220225 	int err;
221226 
222
-	desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
223
-	blkcipher_walk_init(&walk, dst, src, nbytes);
224
-	err = blkcipher_walk_virt(desc, &walk);
227
+	err = skcipher_walk_virt(&walk, req, false);
225228 
226
-	while ((nbytes = walk.nbytes)) {
227
-		ubytes = nbytes > MAX_BYTES ?
228
-			 nbytes - MAX_BYTES : nbytes & (AES_BLOCK_SIZE - 1);
229
-		nbytes -= ubytes;
229
+	while ((nbytes = walk.nbytes) != 0) {
230
+		nbytes = min_t(unsigned int, nbytes, MAX_BYTES);
231
+		nbytes = round_down(nbytes, AES_BLOCK_SIZE);
230232 
231233 		spe_begin();
232
-		ppc_decrypt_ecb(walk.dst.virt.addr, walk.src.virt.addr,
233
-				ctx->key_dec, ctx->rounds, nbytes);
234
+		if (enc)
235
+			ppc_encrypt_cbc(walk.dst.virt.addr, walk.src.virt.addr,
236
+					ctx->key_enc, ctx->rounds, nbytes,
237
+					walk.iv);
238
+		else
239
+			ppc_decrypt_cbc(walk.dst.virt.addr, walk.src.virt.addr,
240
+					ctx->key_dec, ctx->rounds, nbytes,
241
+					walk.iv);
234242 		spe_end();
235243 
236
-		err = blkcipher_walk_done(desc, &walk, ubytes);
244
+		err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
237245 	}
238246 
239247 	return err;
240248 }
241249 
242
-static int ppc_cbc_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
243
-			   struct scatterlist *src, unsigned int nbytes)
250
+static int ppc_cbc_encrypt(struct skcipher_request *req)
244251 {
245
-	struct ppc_aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
246
-	struct blkcipher_walk walk;
247
-	unsigned int ubytes;
248
-	int err;
249
-
250
-	desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
251
-	blkcipher_walk_init(&walk, dst, src, nbytes);
252
-	err = blkcipher_walk_virt(desc, &walk);
253
-
254
-	while ((nbytes = walk.nbytes)) {
255
-		ubytes = nbytes > MAX_BYTES ?
256
-			 nbytes - MAX_BYTES : nbytes & (AES_BLOCK_SIZE - 1);
257
-		nbytes -= ubytes;
258
-
259
-		spe_begin();
260
-		ppc_encrypt_cbc(walk.dst.virt.addr, walk.src.virt.addr,
261
-				ctx->key_enc, ctx->rounds, nbytes, walk.iv);
262
-		spe_end();
263
-
264
-		err = blkcipher_walk_done(desc, &walk, ubytes);
265
-	}
266
-
267
-	return err;
252
+	return ppc_cbc_crypt(req, true);
268253 }
269254 
270
-static int ppc_cbc_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
271
-			   struct scatterlist *src, unsigned int nbytes)
255
+static int ppc_cbc_decrypt(struct skcipher_request *req)
272256 {
273
-	struct ppc_aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
274
-	struct blkcipher_walk walk;
275
-	unsigned int ubytes;
276
-	int err;
277
-
278
-	desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
279
-	blkcipher_walk_init(&walk, dst, src, nbytes);
280
-	err = blkcipher_walk_virt(desc, &walk);
281
-
282
-	while ((nbytes = walk.nbytes)) {
283
-		ubytes = nbytes > MAX_BYTES ?
284
-			 nbytes - MAX_BYTES : nbytes & (AES_BLOCK_SIZE - 1);
285
-		nbytes -= ubytes;
286
-
287
-		spe_begin();
288
-		ppc_decrypt_cbc(walk.dst.virt.addr, walk.src.virt.addr,
289
-				ctx->key_dec, ctx->rounds, nbytes, walk.iv);
290
-		spe_end();
291
-
292
-		err = blkcipher_walk_done(desc, &walk, ubytes);
293
-	}
294
-
295
-	return err;
257
+	return ppc_cbc_crypt(req, false);
296258 }
297259 
298
-static int ppc_ctr_crypt(struct blkcipher_desc *desc, struct scatterlist *dst,
299
-			 struct scatterlist *src, unsigned int nbytes)
260
+static int ppc_ctr_crypt(struct skcipher_request *req)
300261 {
301
-	struct ppc_aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
302
-	struct blkcipher_walk walk;
303
-	unsigned int pbytes, ubytes;
262
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
263
+	struct ppc_aes_ctx *ctx = crypto_skcipher_ctx(tfm);
264
+	struct skcipher_walk walk;
265
+	unsigned int nbytes;
304266 	int err;
305267 
306
-	desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
307
-	blkcipher_walk_init(&walk, dst, src, nbytes);
308
-	err = blkcipher_walk_virt_block(desc, &walk, AES_BLOCK_SIZE);
268
+	err = skcipher_walk_virt(&walk, req, false);
309269 
310
-	while ((pbytes = walk.nbytes)) {
311
-		pbytes = pbytes > MAX_BYTES ? MAX_BYTES : pbytes;
312
-		pbytes = pbytes == nbytes ?
313
-			 nbytes : pbytes & ~(AES_BLOCK_SIZE - 1);
314
-		ubytes = walk.nbytes - pbytes;
270
+	while ((nbytes = walk.nbytes) != 0) {
271
+		nbytes = min_t(unsigned int, nbytes, MAX_BYTES);
272
+		if (nbytes < walk.total)
273
+			nbytes = round_down(nbytes, AES_BLOCK_SIZE);
315274 
316275 		spe_begin();
317276 		ppc_crypt_ctr(walk.dst.virt.addr, walk.src.virt.addr,
318
-			      ctx->key_enc, ctx->rounds, pbytes , walk.iv);
277
+			      ctx->key_enc, ctx->rounds, nbytes, walk.iv);
319278 		spe_end();
320279 
321
-		nbytes -= pbytes;
322
-		err = blkcipher_walk_done(desc, &walk, ubytes);
280
+		err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
323281 	}
324282 
325283 	return err;
326284 }
327285 
328
-static int ppc_xts_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
329
-			   struct scatterlist *src, unsigned int nbytes)
286
+static int ppc_xts_crypt(struct skcipher_request *req, bool enc)
330287 {
331
-	struct ppc_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
332
-	struct blkcipher_walk walk;
333
-	unsigned int ubytes;
288
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
289
+	struct ppc_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
290
+	struct skcipher_walk walk;
291
+	unsigned int nbytes;
334292 	int err;
335293 	u32 *twk;
336294 
337
-	desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
338
-	blkcipher_walk_init(&walk, dst, src, nbytes);
339
-	err = blkcipher_walk_virt(desc, &walk);
295
+	err = skcipher_walk_virt(&walk, req, false);
340296 	twk = ctx->key_twk;
341297 
342
-	while ((nbytes = walk.nbytes)) {
343
-		ubytes = nbytes > MAX_BYTES ?
344
-			 nbytes - MAX_BYTES : nbytes & (AES_BLOCK_SIZE - 1);
345
-		nbytes -= ubytes;
298
+	while ((nbytes = walk.nbytes) != 0) {
299
+		nbytes = min_t(unsigned int, nbytes, MAX_BYTES);
300
+		nbytes = round_down(nbytes, AES_BLOCK_SIZE);
346301 
347302 		spe_begin();
348
-		ppc_encrypt_xts(walk.dst.virt.addr, walk.src.virt.addr,
349
-				ctx->key_enc, ctx->rounds, nbytes, walk.iv, twk);
303
+		if (enc)
304
+			ppc_encrypt_xts(walk.dst.virt.addr, walk.src.virt.addr,
305
+					ctx->key_enc, ctx->rounds, nbytes,
306
+					walk.iv, twk);
307
+		else
308
+			ppc_decrypt_xts(walk.dst.virt.addr, walk.src.virt.addr,
309
+					ctx->key_dec, ctx->rounds, nbytes,
310
+					walk.iv, twk);
350311 		spe_end();
351312 
352313 		twk = NULL;
353
-		err = blkcipher_walk_done(desc, &walk, ubytes);
314
+		err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
354315 	}
355316 
356317 	return err;
357318 }
358319 
359
-static int ppc_xts_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
360
-			   struct scatterlist *src, unsigned int nbytes)
320
+static int ppc_xts_encrypt(struct skcipher_request *req)
361321 {
362
-	struct ppc_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
363
-	struct blkcipher_walk walk;
364
-	unsigned int ubytes;
322
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
323
+	struct ppc_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
324
+	int tail = req->cryptlen % AES_BLOCK_SIZE;
325
+	int offset = req->cryptlen - tail - AES_BLOCK_SIZE;
326
+	struct skcipher_request subreq;
327
+	u8 b[2][AES_BLOCK_SIZE];
365328 	int err;
366
-	u32 *twk;
367329 
368
-	desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
369
-	blkcipher_walk_init(&walk, dst, src, nbytes);
370
-	err = blkcipher_walk_virt(desc, &walk);
371
-	twk = ctx->key_twk;
330
+	if (req->cryptlen < AES_BLOCK_SIZE)
331
+		return -EINVAL;
372332 
373
-	while ((nbytes = walk.nbytes)) {
374
-		ubytes = nbytes > MAX_BYTES ?
375
-			 nbytes - MAX_BYTES : nbytes & (AES_BLOCK_SIZE - 1);
376
-		nbytes -= ubytes;
377
-
378
-		spe_begin();
379
-		ppc_decrypt_xts(walk.dst.virt.addr, walk.src.virt.addr,
380
-				ctx->key_dec, ctx->rounds, nbytes, walk.iv, twk);
381
-		spe_end();
382
-
383
-		twk = NULL;
384
-		err = blkcipher_walk_done(desc, &walk, ubytes);
333
+	if (tail) {
334
+		subreq = *req;
335
+		skcipher_request_set_crypt(&subreq, req->src, req->dst,
336
+					   req->cryptlen - tail, req->iv);
337
+		req = &subreq;
385338 	}
386339 
387
-	return err;
340
+	err = ppc_xts_crypt(req, true);
341
+	if (err || !tail)
342
+		return err;
343
+
344
+	scatterwalk_map_and_copy(b[0], req->dst, offset, AES_BLOCK_SIZE, 0);
345
+	memcpy(b[1], b[0], tail);
346
+	scatterwalk_map_and_copy(b[0], req->src, offset + AES_BLOCK_SIZE, tail, 0);
347
+
348
+	spe_begin();
349
+	ppc_encrypt_xts(b[0], b[0], ctx->key_enc, ctx->rounds, AES_BLOCK_SIZE,
350
+			req->iv, NULL);
351
+	spe_end();
352
+
353
+	scatterwalk_map_and_copy(b[0], req->dst, offset, AES_BLOCK_SIZE + tail, 1);
354
+
355
+	return 0;
356
+}
357
+
358
+static int ppc_xts_decrypt(struct skcipher_request *req)
359
+{
360
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
361
+	struct ppc_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
362
+	int tail = req->cryptlen % AES_BLOCK_SIZE;
363
+	int offset = req->cryptlen - tail - AES_BLOCK_SIZE;
364
+	struct skcipher_request subreq;
365
+	u8 b[3][AES_BLOCK_SIZE];
366
+	le128 twk;
367
+	int err;
368
+
369
+	if (req->cryptlen < AES_BLOCK_SIZE)
370
+		return -EINVAL;
371
+
372
+	if (tail) {
373
+		subreq = *req;
374
+		skcipher_request_set_crypt(&subreq, req->src, req->dst,
375
+					   offset, req->iv);
376
+		req = &subreq;
377
+	}
378
+
379
+	err = ppc_xts_crypt(req, false);
380
+	if (err || !tail)
381
+		return err;
382
+
383
+	scatterwalk_map_and_copy(b[1], req->src, offset, AES_BLOCK_SIZE + tail, 0);
384
+
385
+	spe_begin();
386
+	if (!offset)
387
+		ppc_encrypt_ecb(req->iv, req->iv, ctx->key_twk, ctx->rounds,
388
+				AES_BLOCK_SIZE);
389
+
390
+	gf128mul_x_ble(&twk, (le128 *)req->iv);
391
+
392
+	ppc_decrypt_xts(b[1], b[1], ctx->key_dec, ctx->rounds, AES_BLOCK_SIZE,
393
+			(u8 *)&twk, NULL);
394
+	memcpy(b[0], b[2], tail);
395
+	memcpy(b[0] + tail, b[1] + tail, AES_BLOCK_SIZE - tail);
396
+	ppc_decrypt_xts(b[0], b[0], ctx->key_dec, ctx->rounds, AES_BLOCK_SIZE,
397
+			req->iv, NULL);
398
+	spe_end();
399
+
400
+	scatterwalk_map_and_copy(b[0], req->dst, offset, AES_BLOCK_SIZE + tail, 1);
401
+
402
+	return 0;
388403 }
389404 
390405 /*
....@@ -393,9 +408,9 @@
393408  * This improves IPsec thoughput by another few percent. Additionally we assume
394409  * that AES context is always aligned to at least 8 bytes because it is created
395410  * with kmalloc() in the crypto infrastructure
396
- *
397411  */
398
-static struct crypto_alg aes_algs[] = { {
412
+
413
+static struct crypto_alg aes_cipher_alg = {
399414 	.cra_name		=	"aes",
400415 	.cra_driver_name	=	"aes-ppc-spe",
401416 	.cra_priority		=	300,
....@@ -413,96 +428,84 @@
413428 			.cia_decrypt		=	ppc_aes_decrypt
414429 		}
415430 	}
416
-}, {
417
-	.cra_name		=	"ecb(aes)",
418
-	.cra_driver_name	=	"ecb-ppc-spe",
419
-	.cra_priority		=	300,
420
-	.cra_flags		=	CRYPTO_ALG_TYPE_BLKCIPHER,
421
-	.cra_blocksize		=	AES_BLOCK_SIZE,
422
-	.cra_ctxsize		=	sizeof(struct ppc_aes_ctx),
423
-	.cra_alignmask		=	0,
424
-	.cra_type		=	&crypto_blkcipher_type,
425
-	.cra_module		=	THIS_MODULE,
426
-	.cra_u = {
427
-		.blkcipher = {
428
-			.min_keysize		=	AES_MIN_KEY_SIZE,
429
-			.max_keysize		=	AES_MAX_KEY_SIZE,
430
-			.ivsize			=	AES_BLOCK_SIZE,
431
-			.setkey			=	ppc_aes_setkey,
432
-			.encrypt		=	ppc_ecb_encrypt,
433
-			.decrypt		=	ppc_ecb_decrypt,
434
-		}
431
+};
432
+
433
+static struct skcipher_alg aes_skcipher_algs[] = {
434
+	{
435
+		.base.cra_name		=	"ecb(aes)",
436
+		.base.cra_driver_name	=	"ecb-ppc-spe",
437
+		.base.cra_priority	=	300,
438
+		.base.cra_blocksize	=	AES_BLOCK_SIZE,
439
+		.base.cra_ctxsize	=	sizeof(struct ppc_aes_ctx),
440
+		.base.cra_module	=	THIS_MODULE,
441
+		.min_keysize		=	AES_MIN_KEY_SIZE,
442
+		.max_keysize		=	AES_MAX_KEY_SIZE,
443
+		.setkey			=	ppc_aes_setkey_skcipher,
444
+		.encrypt		=	ppc_ecb_encrypt,
445
+		.decrypt		=	ppc_ecb_decrypt,
446
+	}, {
447
+		.base.cra_name		=	"cbc(aes)",
448
+		.base.cra_driver_name	=	"cbc-ppc-spe",
449
+		.base.cra_priority	=	300,
450
+		.base.cra_blocksize	=	AES_BLOCK_SIZE,
451
+		.base.cra_ctxsize	=	sizeof(struct ppc_aes_ctx),
452
+		.base.cra_module	=	THIS_MODULE,
453
+		.min_keysize		=	AES_MIN_KEY_SIZE,
454
+		.max_keysize		=	AES_MAX_KEY_SIZE,
455
+		.ivsize			=	AES_BLOCK_SIZE,
456
+		.setkey			=	ppc_aes_setkey_skcipher,
457
+		.encrypt		=	ppc_cbc_encrypt,
458
+		.decrypt		=	ppc_cbc_decrypt,
459
+	}, {
460
+		.base.cra_name		=	"ctr(aes)",
461
+		.base.cra_driver_name	=	"ctr-ppc-spe",
462
+		.base.cra_priority	=	300,
463
+		.base.cra_blocksize	=	1,
464
+		.base.cra_ctxsize	=	sizeof(struct ppc_aes_ctx),
465
+		.base.cra_module	=	THIS_MODULE,
466
+		.min_keysize		=	AES_MIN_KEY_SIZE,
467
+		.max_keysize		=	AES_MAX_KEY_SIZE,
468
+		.ivsize			=	AES_BLOCK_SIZE,
469
+		.setkey			=	ppc_aes_setkey_skcipher,
470
+		.encrypt		=	ppc_ctr_crypt,
471
+		.decrypt		=	ppc_ctr_crypt,
472
+		.chunksize		=	AES_BLOCK_SIZE,
473
+	}, {
474
+		.base.cra_name		=	"xts(aes)",
475
+		.base.cra_driver_name	=	"xts-ppc-spe",
476
+		.base.cra_priority	=	300,
477
+		.base.cra_blocksize	=	AES_BLOCK_SIZE,
478
+		.base.cra_ctxsize	=	sizeof(struct ppc_xts_ctx),
479
+		.base.cra_module	=	THIS_MODULE,
480
+		.min_keysize		=	AES_MIN_KEY_SIZE * 2,
481
+		.max_keysize		=	AES_MAX_KEY_SIZE * 2,
482
+		.ivsize			=	AES_BLOCK_SIZE,
483
+		.setkey			=	ppc_xts_setkey,
484
+		.encrypt		=	ppc_xts_encrypt,
485
+		.decrypt		=	ppc_xts_decrypt,
435486 	}
436
-}, {
437
-	.cra_name		=	"cbc(aes)",
438
-	.cra_driver_name	=	"cbc-ppc-spe",
439
-	.cra_priority		=	300,
440
-	.cra_flags		=	CRYPTO_ALG_TYPE_BLKCIPHER,
441
-	.cra_blocksize		=	AES_BLOCK_SIZE,
442
-	.cra_ctxsize		=	sizeof(struct ppc_aes_ctx),
443
-	.cra_alignmask		=	0,
444
-	.cra_type		=	&crypto_blkcipher_type,
445
-	.cra_module		=	THIS_MODULE,
446
-	.cra_u = {
447
-		.blkcipher = {
448
-			.min_keysize		=	AES_MIN_KEY_SIZE,
449
-			.max_keysize		=	AES_MAX_KEY_SIZE,
450
-			.ivsize			=	AES_BLOCK_SIZE,
451
-			.setkey			=	ppc_aes_setkey,
452
-			.encrypt		=	ppc_cbc_encrypt,
453
-			.decrypt		=	ppc_cbc_decrypt,
454
-		}
455
-	}
456
-}, {
457
-	.cra_name		=	"ctr(aes)",
458
-	.cra_driver_name	=	"ctr-ppc-spe",
459
-	.cra_priority		=	300,
460
-	.cra_flags		=	CRYPTO_ALG_TYPE_BLKCIPHER,
461
-	.cra_blocksize		=	1,
462
-	.cra_ctxsize		=	sizeof(struct ppc_aes_ctx),
463
-	.cra_alignmask		=	0,
464
-	.cra_type		=	&crypto_blkcipher_type,
465
-	.cra_module		=	THIS_MODULE,
466
-	.cra_u = {
467
-		.blkcipher = {
468
-			.min_keysize		=	AES_MIN_KEY_SIZE,
469
-			.max_keysize		=	AES_MAX_KEY_SIZE,
470
-			.ivsize			=	AES_BLOCK_SIZE,
471
-			.setkey			=	ppc_aes_setkey,
472
-			.encrypt		=	ppc_ctr_crypt,
473
-			.decrypt		=	ppc_ctr_crypt,
474
-		}
475
-	}
476
-}, {
477
-	.cra_name		=	"xts(aes)",
478
-	.cra_driver_name	=	"xts-ppc-spe",
479
-	.cra_priority		=	300,
480
-	.cra_flags		=	CRYPTO_ALG_TYPE_BLKCIPHER,
481
-	.cra_blocksize		=	AES_BLOCK_SIZE,
482
-	.cra_ctxsize		=	sizeof(struct ppc_xts_ctx),
483
-	.cra_alignmask		=	0,
484
-	.cra_type		=	&crypto_blkcipher_type,
485
-	.cra_module		=	THIS_MODULE,
486
-	.cra_u = {
487
-		.blkcipher = {
488
-			.min_keysize		=	AES_MIN_KEY_SIZE * 2,
489
-			.max_keysize		=	AES_MAX_KEY_SIZE * 2,
490
-			.ivsize			=	AES_BLOCK_SIZE,
491
-			.setkey			=	ppc_xts_setkey,
492
-			.encrypt		=	ppc_xts_encrypt,
493
-			.decrypt		=	ppc_xts_decrypt,
494
-		}
495
-	}
496
-} };
487
+};
497488 
498489 static int __init ppc_aes_mod_init(void)
499490 {
500
-	return crypto_register_algs(aes_algs, ARRAY_SIZE(aes_algs));
491
+	int err;
492
+
493
+	err = crypto_register_alg(&aes_cipher_alg);
494
+	if (err)
495
+		return err;
496
+
497
+	err = crypto_register_skciphers(aes_skcipher_algs,
498
+					ARRAY_SIZE(aes_skcipher_algs));
499
+	if (err)
500
+		crypto_unregister_alg(&aes_cipher_alg);
501
+	return err;
501502 }
502503 
503504 static void __exit ppc_aes_mod_fini(void)
504505 {
505
-	crypto_unregister_algs(aes_algs, ARRAY_SIZE(aes_algs));
506
+	crypto_unregister_alg(&aes_cipher_alg);
507
+	crypto_unregister_skciphers(aes_skcipher_algs,
508
+				    ARRAY_SIZE(aes_skcipher_algs));
506509 }
507510 
508511 module_init(ppc_aes_mod_init);