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authorHuang Ying <ying.huang@intel.com>2009-01-09 17:25:50 +1100
committerHerbert Xu <herbert@gondor.apana.org.au>2009-02-18 16:48:05 +0800
commit07bf44f86989f5ed866510374fe761d1903681fb (patch)
treeb7a4bbd3a66dd6fec0243a12f8569a4ad0fce9da /arch/x86/crypto/aes_glue.c
parent109568e110ed67d4be1b28609b9fa00fca97f8eb (diff)
downloadlinux-07bf44f86989f5ed866510374fe761d1903681fb.tar.bz2
crypto: aes - Export x86 AES encrypt/decrypt functions
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>
Diffstat (limited to 'arch/x86/crypto/aes_glue.c')
-rw-r--r--arch/x86/crypto/aes_glue.c20
1 files changed, 16 insertions, 4 deletions
diff --git a/arch/x86/crypto/aes_glue.c b/arch/x86/crypto/aes_glue.c
index 71f457827116..49ae9fe32b22 100644
--- a/arch/x86/crypto/aes_glue.c
+++ b/arch/x86/crypto/aes_glue.c
@@ -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 = {