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@xxxxxxxxxx>
---
arch/arm/crypto/aes_glue.c | 22 ++++++----------------
arch/arm/crypto/aes_glue.h | 19 +++++++++++++++++++
2 files changed, 25 insertions(+), 16 deletions(-)
create mode 100644 arch/arm/crypto/aes_glue.h
diff --git a/arch/arm/crypto/aes_glue.c b/arch/arm/crypto/aes_glue.c
index 59f7877..3003fa1 100644
--- a/arch/arm/crypto/aes_glue.c
+++ b/arch/arm/crypto/aes_glue.c
@@ -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
}
diff --git a/arch/arm/crypto/aes_glue.h b/arch/arm/crypto/aes_glue.h
new file mode 100644
index 0000000..cca3e51
--- /dev/null
+++ b/arch/arm/crypto/aes_glue.h
@@ -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);
--
1.8.1.2
--
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