From 25cc72e017f4914b3b4ab7d5f5c40067d97f0e1b Mon Sep 17 00:00:00 2001
From: Jens Wiklander <jens.wiklander@linaro.org>
Date: Tue, 26 Mar 2019 20:31:53 +0100
Subject: core: ltc: move remaining exported aes functions

Moves remaining exported aes functions to aes.c

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
---
 core/lib/libtomcrypt/aes.c                  | 39 +++++++++++++++++++++++++++++
 core/lib/libtomcrypt/src/tee_ltc_provider.c | 29 ---------------------
 core/lib/libtomcrypt/sub.mk                 |  1 +
 3 files changed, 40 insertions(+), 29 deletions(-)
 create mode 100644 core/lib/libtomcrypt/aes.c

diff --git a/core/lib/libtomcrypt/aes.c b/core/lib/libtomcrypt/aes.c
new file mode 100644
index 00000000..027a2f76
--- /dev/null
+++ b/core/lib/libtomcrypt/aes.c
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: BSD-2-Clause
+/*
+ * Copyright (c) 2014-2019, Linaro Limited
+ */
+
+#include <crypto/crypto.h>
+#include <kernel/panic.h>
+#include <tee_api_defines.h>
+#include <tee_api_types.h>
+#include <tomcrypt.h>
+
+TEE_Result crypto_aes_expand_enc_key(const void *key, size_t key_len,
+				     void *enc_key, size_t enc_keylen,
+				     unsigned int *rounds)
+{
+	symmetric_key skey;
+
+	if (enc_keylen < sizeof(skey.rijndael.eK))
+		return TEE_ERROR_BAD_PARAMETERS;
+
+	if (aes_setup(key, key_len, 0, &skey))
+		return TEE_ERROR_BAD_PARAMETERS;
+
+	memcpy(enc_key, skey.rijndael.eK, sizeof(skey.rijndael.eK));
+	*rounds = skey.rijndael.Nr;
+	return TEE_SUCCESS;
+}
+
+void crypto_aes_enc_block(const void *enc_key, size_t enc_keylen __maybe_unused,
+			  unsigned int rounds, const void *src, void *dst)
+{
+	symmetric_key skey;
+
+	assert(enc_keylen >= sizeof(skey.rijndael.eK));
+	memcpy(skey.rijndael.eK, enc_key, sizeof(skey.rijndael.eK));
+	skey.rijndael.Nr = rounds;
+	if (aes_ecb_encrypt(src, dst, &skey))
+		panic();
+}
diff --git a/core/lib/libtomcrypt/src/tee_ltc_provider.c b/core/lib/libtomcrypt/src/tee_ltc_provider.c
index 2fa3d662..2663e774 100644
--- a/core/lib/libtomcrypt/src/tee_ltc_provider.c
+++ b/core/lib/libtomcrypt/src/tee_ltc_provider.c
@@ -144,32 +144,3 @@ void tomcrypt_arm_neon_disable(struct tomcrypt_arm_neon_state *state)
 	thread_kernel_disable_vfp(state->state);
 }
 #endif
-
-TEE_Result crypto_aes_expand_enc_key(const void *key, size_t key_len,
-				     void *enc_key, size_t enc_keylen,
-				     unsigned int *rounds)
-{
-	symmetric_key skey;
-
-	if (enc_keylen < sizeof(skey.rijndael.eK))
-		return TEE_ERROR_BAD_PARAMETERS;
-
-	if (aes_setup(key, key_len, 0, &skey))
-		return TEE_ERROR_BAD_PARAMETERS;
-
-	memcpy(enc_key, skey.rijndael.eK, sizeof(skey.rijndael.eK));
-	*rounds = skey.rijndael.Nr;
-	return TEE_SUCCESS;
-}
-
-void crypto_aes_enc_block(const void *enc_key, size_t enc_keylen __maybe_unused,
-			  unsigned int rounds, const void *src, void *dst)
-{
-	symmetric_key skey;
-
-	assert(enc_keylen >= sizeof(skey.rijndael.eK));
-	memcpy(skey.rijndael.eK, enc_key, sizeof(skey.rijndael.eK));
-	skey.rijndael.Nr = rounds;
-	if (aes_ecb_encrypt(src, dst, &skey))
-		panic();
-}
diff --git a/core/lib/libtomcrypt/sub.mk b/core/lib/libtomcrypt/sub.mk
index 50333ac1..31fbcd41 100644
--- a/core/lib/libtomcrypt/sub.mk
+++ b/core/lib/libtomcrypt/sub.mk
@@ -19,3 +19,4 @@ srcs-$(CFG_CRYPTO_DSA) += dsa.c
 srcs-$(CFG_CRYPTO_ECC) += ecc.c
 srcs-$(CFG_CRYPTO_RSA) += rsa.c
 srcs-$(CFG_CRYPTO_DH) += dh.c
+srcs-$(CFG_CRYPTO_AES) += aes.c
-- 
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