Merge pull request #315 from jcastillo-arm/jc/tbb_tmp9

Authentication Framework

1 files changed, 88 insertions, 0 deletions

diff --git a/include/drivers/auth/img_parser_mod.h b/include/drivers/auth/img_parser_mod.h
new file mode 100644
index 00000000..d80e0fb7
--- /dev/null
+++ b/include/drivers/auth/img_parser_mod.h
@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __IMG_PARSER_MOD_H__
+#define __IMG_PARSER_MOD_H__
+
+#include <auth_common.h>
+
+/*
+ * Return values
+ */
+enum img_parser_ret_value {
+	IMG_PARSER_OK,
+	IMG_PARSER_ERR,			/* Parser internal error */
+	IMG_PARSER_ERR_FORMAT,		/* Malformed image */
+	IMG_PARSER_ERR_NOT_FOUND	/* Authentication data not found */
+};
+
+/*
+ * Image types. A parser should be instantiated and registered for each type
+ */
+typedef enum img_type_enum {
+	IMG_RAW,			/* Binary image */
+	IMG_PLAT,			/* Platform specific format */
+	IMG_CERT,			/* X509v3 certificate */
+	IMG_MAX_TYPES,
+} img_type_t;
+
+/* Image parser library structure */
+typedef struct img_parser_lib_desc_s {
+	img_type_t img_type;
+	const char *name;
+
+	void (*init)(void);
+	int (*check_integrity)(void *img, unsigned int img_len);
+	int (*get_auth_param)(const auth_param_type_desc_t *type_desc,
+			void *img, unsigned int img_len,
+			void **param, unsigned int *param_len);
+} img_parser_lib_desc_t;
+
+/* Exported functions */
+void img_parser_init(void);
+int img_parser_check_integrity(img_type_t img_type,
+		void *img, unsigned int img_len);
+int img_parser_get_auth_param(img_type_t img_type,
+		const auth_param_type_desc_t *type_desc,
+		void *img, unsigned int img_len,
+		void **param_ptr, unsigned int *param_len);
+
+/* Macro to register an image parser library */
+#define REGISTER_IMG_PARSER_LIB(_type, _name, _init, _check_int, _get_param) \
+	static const img_parser_lib_desc_t __img_parser_lib_desc_##_type \
+	__attribute__ ((section(".img_parser_lib_descs"), used)) = { \
+		.img_type = _type, \
+		.name = _name, \
+		.init = _init, \
+		.check_integrity = _check_int, \
+		.get_auth_param = _get_param \
+	}
+
+#endif /* __IMG_PARSER_MOD_H__ */