1/*
 2 * Glue Code for the asm optimized version of the AES Cipher Algorithm
 3 *
 4 */
 5
 6#include <linux/module.h>
 7#include <crypto/aes.h>
 8#include <asm/crypto/aes.h>
 9
10asmlinkage void aes_enc_blk(struct crypto_aes_ctx *ctx, u8 *out, const u8 *in);
11asmlinkage void aes_dec_blk(struct crypto_aes_ctx *ctx, u8 *out, const u8 *in);
12
13void crypto_aes_encrypt_x86(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
14{
15	aes_enc_blk(ctx, dst, src);
16}
17EXPORT_SYMBOL_GPL(crypto_aes_encrypt_x86);
18
19void crypto_aes_decrypt_x86(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
20{
21	aes_dec_blk(ctx, dst, src);
22}
23EXPORT_SYMBOL_GPL(crypto_aes_decrypt_x86);
24
25static void aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
26{
27	aes_enc_blk(crypto_tfm_ctx(tfm), dst, src);
28}
29
30static void aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
31{
32	aes_dec_blk(crypto_tfm_ctx(tfm), dst, src);
33}
34
35static struct crypto_alg aes_alg = {
36	.cra_name		= "aes",
37	.cra_driver_name	= "aes-asm",
38	.cra_priority		= 200,
39	.cra_flags		= CRYPTO_ALG_TYPE_CIPHER,
40	.cra_blocksize		= AES_BLOCK_SIZE,
41	.cra_ctxsize		= sizeof(struct crypto_aes_ctx),
42	.cra_module		= THIS_MODULE,
43	.cra_u	= {
44		.cipher	= {
45			.cia_min_keysize	= AES_MIN_KEY_SIZE,
46			.cia_max_keysize	= AES_MAX_KEY_SIZE,
47			.cia_setkey		= crypto_aes_set_key,
48			.cia_encrypt		= aes_encrypt,
49			.cia_decrypt		= aes_decrypt
50		}
51	}
52};
53
54static int __init aes_init(void)
55{
56	return crypto_register_alg(&aes_alg);
57}
58
59static void __exit aes_fini(void)
60{
61	crypto_unregister_alg(&aes_alg);
62}
63
64module_init(aes_init);
65module_exit(aes_fini);
66
67MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm, asm optimized");
68MODULE_LICENSE("GPL");
69MODULE_ALIAS_CRYPTO("aes");
70MODULE_ALIAS_CRYPTO("aes-asm");