42 #define AES_BLOCK_MASK	(~(AES_BLOCK_SIZE - 1))
306 		nbytes &= AES_BLOCK_SIZE - 1;  in ecb_encrypt()
328 		nbytes &= AES_BLOCK_SIZE - 1;  in ecb_decrypt()
350 		nbytes &= AES_BLOCK_SIZE - 1;  in cbc_encrypt()
372 		nbytes &= AES_BLOCK_SIZE - 1;  in cbc_decrypt()
383 	int cbc_blocks = DIV_ROUND_UP(req->cryptlen, AES_BLOCK_SIZE) - 2;  in cts_cbc_encrypt()
394 	if (req->cryptlen <= AES_BLOCK_SIZE) {  in cts_cbc_encrypt()
395 		if (req->cryptlen < AES_BLOCK_SIZE)  in cts_cbc_encrypt()
402 					   cbc_blocks * AES_BLOCK_SIZE,  in cts_cbc_encrypt()
409 		if (req->cryptlen == AES_BLOCK_SIZE)  in cts_cbc_encrypt()
420 				   req->cryptlen - cbc_blocks * AES_BLOCK_SIZE,  in cts_cbc_encrypt()
439 	int cbc_blocks = DIV_ROUND_UP(req->cryptlen, AES_BLOCK_SIZE) - 2;  in cts_cbc_decrypt()
450 	if (req->cryptlen <= AES_BLOCK_SIZE) {  in cts_cbc_decrypt()
451 		if (req->cryptlen < AES_BLOCK_SIZE)  in cts_cbc_decrypt()
458 					   cbc_blocks * AES_BLOCK_SIZE,  in cts_cbc_decrypt()
465 		if (req->cryptlen == AES_BLOCK_SIZE)  in cts_cbc_decrypt()
476 				   req->cryptlen - cbc_blocks * AES_BLOCK_SIZE,  in cts_cbc_decrypt()
513 	u8 keystream[AES_BLOCK_SIZE];  in ctr_crypt()
534 			crypto_inc(walk.iv, AES_BLOCK_SIZE);  in ctr_crypt()
562 	u8 keystream[AES_BLOCK_SIZE];  in xctr_crypt()
567 	__le32 block[AES_BLOCK_SIZE / sizeof(__le32)];  in xctr_crypt()
581 			memcpy(block, walk.iv, AES_BLOCK_SIZE);  in xctr_crypt()
582 			block[0] ^= cpu_to_le32(1 + byte_ctr / AES_BLOCK_SIZE);  in xctr_crypt()
907 	int tail = req->cryptlen % AES_BLOCK_SIZE;  in xts_crypt()
912 	if (req->cryptlen < AES_BLOCK_SIZE)  in xts_crypt()
920 		int blocks = DIV_ROUND_UP(req->cryptlen, AES_BLOCK_SIZE) - 2;  in xts_crypt()
929 					   blocks * AES_BLOCK_SIZE, req->iv);  in xts_crypt()
948 			nbytes &= ~(AES_BLOCK_SIZE - 1);  in xts_crypt()
974 		skcipher_request_set_crypt(req, src, dst, AES_BLOCK_SIZE + tail,  in xts_crypt()
1012 	.cra_blocksize		= AES_BLOCK_SIZE,
1033 			.cra_blocksize		= AES_BLOCK_SIZE,
1048 			.cra_blocksize		= AES_BLOCK_SIZE,
1054 		.ivsize		= AES_BLOCK_SIZE,
1064 			.cra_blocksize		= AES_BLOCK_SIZE,
1070 		.ivsize		= AES_BLOCK_SIZE,
1071 		.walksize	= 2 * AES_BLOCK_SIZE,
1088 		.ivsize		= AES_BLOCK_SIZE,
1089 		.chunksize	= AES_BLOCK_SIZE,
1100 			.cra_blocksize		= AES_BLOCK_SIZE,
1106 		.ivsize		= AES_BLOCK_SIZE,
1107 		.walksize	= 2 * AES_BLOCK_SIZE,
1134 	.ivsize		= AES_BLOCK_SIZE,
1135 	.chunksize	= AES_BLOCK_SIZE,