1 files changed, 58 insertions, 0 deletions
diff --git a/include/blobgen.h b/include/blobgen.h
new file mode 100644
index 0000000000..09a6637b77
--- /dev/null
+++ b/include/blobgen.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2016 Pengutronix, Steffen Trumtrar <kernel@pengutronix.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __BLOBGEN_H__
+#define __BLOBGEN_H__
+
+#include <common.h>
+
+enum access_rights {
+	KERNEL,
+	KERNEL_EVM,
+	USERSPACE,
+};
+
+#define KEYMOD_LENGTH		16
+#define MAX_BLOB_LEN		4096
+#define BLOCKSIZE_BYTES		8
+
+struct blobgen {
+	struct device_d dev;
+	int (*encrypt)(struct blobgen *bg, const char *modifier,
+		       const void *plain, int plainsize, void *blob,
+		       int *blobsize);
+	int (*decrypt)(struct blobgen *bg, const char *modifier,
+		       const void *blob, int blobsize, void **plain,
+		       int *plainsize);
+
+	enum access_rights access;
+	unsigned int max_payload_size;
+
+	struct list_head list;
+};
+
+int blob_gen_register(struct device_d *dev, struct blobgen *bg);
+
+struct blobgen *blobgen_get(const char *name);
+
+int blob_encrypt(struct blobgen *blg, const char *modifier, const void *plain,
+		 int plainsize, void **blob, int *blobsize);
+int blob_encrypt_to_env(struct blobgen *blg, const char *modifier,
+			const void *plain, int plainsize, const char *varname);
+int blob_decrypt(struct blobgen *bg, const char *modifier, const void *blob,
+		 int blobsize, void **plain, int *plainsize);
+int blob_decrypt_from_base64(struct blobgen *blg, const char *modifier,
+			     const char *encrypted, void **plain, int *plainsize);
+
+#endif