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crypto: aes - Export x86 AES encrypt/decrypt functions

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Intel AES-NI AES acceleration instructions touch XMM state, to use
that in soft_irq context, general x86 AES implementation is used as
fallback. The first parameter is changed from struct crypto_tfm * to
struct crypto_aes_ctx * to make it easier to deal with 16 bytes
alignment requirement of AES-NI implementation.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Huang Ying
2009-01-09 17:25:50 +11:00
committed by Herbert Xu
parent 109568e110
commit 07bf44f869
4 changed files with 38 additions and 17 deletions
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20
arch/x86/crypto/aes_glue.c
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@@ -5,17 +5,29 @@
#include <crypto/aes.h>
asmlinkage void aes_enc_blk(struct crypto_tfm *tfm, u8 *out, const u8 *in);
asmlinkage void aes_dec_blk(struct crypto_tfm *tfm, u8 *out, const u8 *in);
asmlinkage void aes_enc_blk(struct crypto_aes_ctx *ctx, u8 *out, const u8 *in);
asmlinkage void aes_dec_blk(struct crypto_aes_ctx *ctx, u8 *out, const u8 *in);
void crypto_aes_encrypt_x86(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
{
aes_enc_blk(ctx, dst, src);
}
EXPORT_SYMBOL_GPL(crypto_aes_encrypt_x86);
void crypto_aes_decrypt_x86(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
{
aes_dec_blk(ctx, dst, src);
}
EXPORT_SYMBOL_GPL(crypto_aes_decrypt_x86);
static void aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
aes_enc_blk(tfm, dst, src);
aes_enc_blk(crypto_tfm_ctx(tfm), dst, src);
}
static void aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
aes_dec_blk(tfm, dst, src);
aes_dec_blk(crypto_tfm_ctx(tfm), dst, src);
}
static struct crypto_alg aes_alg = {