1 files changed, 33 insertions, 0 deletions
diff --git a/include/keys/secure-type.h b/include/keys/secure-type.h
new file mode 100644
index 000000000000..5b7a5f144e41
--- /dev/null
+++ b/include/keys/secure-type.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2018 NXP.
+ *
+ */
+
+#ifndef _KEYS_SECURE_TYPE_H
+#define _KEYS_SECURE_TYPE_H
+
+#include <linux/key.h>
+#include <linux/rcupdate.h>
+
+/* Minimum key size to be used is 32 bytes and maximum key size fixed
+ * is 128 bytes.
+ * Blob size to be kept is Maximum key size + blob header added by CAAM.
+ */
+
+#define MIN_KEY_SIZE                    32
+#define MAX_KEY_SIZE                    128
+#define BLOB_HEADER_SIZE		48
+
+#define MAX_BLOB_SIZE                   (MAX_KEY_SIZE + BLOB_HEADER_SIZE)
+
+struct secure_key_payload {
+	struct rcu_head rcu;
+	unsigned int key_len;
+	unsigned int blob_len;
+	unsigned char key[MAX_KEY_SIZE + 1];
+	unsigned char blob[MAX_BLOB_SIZE];
+};
+
+extern struct key_type key_type_secure;
+#endif