[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/include/crypto/xts.h b/src/kernel/linux/v4.14/include/crypto/xts.h
new file mode 100644
index 0000000..322aab6
--- /dev/null
+++ b/src/kernel/linux/v4.14/include/crypto/xts.h
@@ -0,0 +1,77 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _CRYPTO_XTS_H
+#define _CRYPTO_XTS_H
+
+#include <crypto/b128ops.h>
+#include <crypto/internal/skcipher.h>
+#include <linux/fips.h>
+
+struct scatterlist;
+struct blkcipher_desc;
+
+#define XTS_BLOCK_SIZE 16
+
+struct xts_crypt_req {
+ le128 *tbuf;
+ unsigned int tbuflen;
+
+ void *tweak_ctx;
+ void (*tweak_fn)(void *ctx, u8* dst, const u8* src);
+ void *crypt_ctx;
+ void (*crypt_fn)(void *ctx, u8 *blks, unsigned int nbytes);
+};
+
+#define XTS_TWEAK_CAST(x) ((void (*)(void *, u8*, const u8*))(x))
+
+int xts_crypt(struct blkcipher_desc *desc, struct scatterlist *dst,
+ struct scatterlist *src, unsigned int nbytes,
+ struct xts_crypt_req *req);
+
+static inline int xts_check_key(struct crypto_tfm *tfm,
+ const u8 *key, unsigned int keylen)
+{
+ u32 *flags = &tfm->crt_flags;
+
+ /*
+ * key consists of keys of equal size concatenated, therefore
+ * the length must be even.
+ */
+ if (keylen % 2) {
+ *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
+ return -EINVAL;
+ }
+
+ /* ensure that the AES and tweak key are not identical */
+ if (fips_enabled &&
+ !crypto_memneq(key, key + (keylen / 2), keylen / 2)) {
+ *flags |= CRYPTO_TFM_RES_WEAK_KEY;
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static inline int xts_verify_key(struct crypto_skcipher *tfm,
+ const u8 *key, unsigned int keylen)
+{
+ /*
+ * key consists of keys of equal size concatenated, therefore
+ * the length must be even.
+ */
+ if (keylen % 2) {
+ crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ return -EINVAL;
+ }
+
+ /* ensure that the AES and tweak key are not identical */
+ if ((fips_enabled || crypto_skcipher_get_flags(tfm) &
+ CRYPTO_TFM_REQ_WEAK_KEY) &&
+ !crypto_memneq(key, key + (keylen / 2), keylen / 2)) {
+ crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_WEAK_KEY);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+#endif /* _CRYPTO_XTS_H */