Initial import of NFC GNSS SDK project

2026-09-15 16:10:12 +08:00
commit 2746cc3d4e
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+/*
+ * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#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_ptr, 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_ptr, 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 \
+	__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 */