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ARM: move AES typedefs and function prototypes to separate header 

Put the struct definitions for AES keys and the asm function prototypes in a
separate header and export the asm functions from the module.
This allows other drivers to use them directly.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
This commit is contained in:
Ard Biesheuvel 2013-09-15 17:10:43 +02:00
parent cf154b7e22
commit 5ce26f3b5a
2 changed files with 25 additions and 16 deletions
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22
arch/arm/crypto/aes_glue.c
View File

@ -6,22 +6,12 @@
#include <linux/crypto.h>
#include <crypto/aes.h>
#define AES_MAXNR 14
#include "aes_glue.h"
typedef struct {
unsigned int rd_key[4 *(AES_MAXNR + 1)];
int rounds;
} AES_KEY;
struct AES_CTX {
AES_KEY enc_key;
AES_KEY dec_key;
};
asmlinkage void AES_encrypt(const u8 *in, u8 *out, AES_KEY *ctx);
asmlinkage void AES_decrypt(const u8 *in, u8 *out, AES_KEY *ctx);
asmlinkage int private_AES_set_decrypt_key(const unsigned char *userKey, const int bits, AES_KEY *key);
asmlinkage int private_AES_set_encrypt_key(const unsigned char *userKey, const int bits, AES_KEY *key);
EXPORT_SYMBOL(AES_encrypt);
EXPORT_SYMBOL(AES_decrypt);
EXPORT_SYMBOL(private_AES_set_encrypt_key);
EXPORT_SYMBOL(private_AES_set_decrypt_key);
static void aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
@ -81,7 +71,7 @@ static struct crypto_alg aes_alg = {
.cipher = {
.cia_min_keysize = AES_MIN_KEY_SIZE,
.cia_max_keysize = AES_MAX_KEY_SIZE,
.cia_setkey = aes_set_key,
.cia_setkey = aes_set_key,
.cia_encrypt = aes_encrypt,
.cia_decrypt = aes_decrypt
}

19
arch/arm/crypto/aes_glue.h Normal file
View File

@ -0,0 +1,19 @@
#define AES_MAXNR 14
struct AES_KEY {
unsigned int rd_key[4 * (AES_MAXNR + 1)];
int rounds;
};
struct AES_CTX {
struct AES_KEY enc_key;
struct AES_KEY dec_key;
};
asmlinkage void AES_encrypt(const u8 *in, u8 *out, struct AES_KEY *ctx);
asmlinkage void AES_decrypt(const u8 *in, u8 *out, struct AES_KEY *ctx);
asmlinkage int private_AES_set_decrypt_key(const unsigned char *userKey,
const int bits, struct AES_KEY *key);
asmlinkage int private_AES_set_encrypt_key(const unsigned char *userKey,
const int bits, struct AES_KEY *key);