1 files changed, 80 insertions, 0 deletions
diff --git a/src/Common/TLVParser.h b/src/Common/TLVParser.h
new file mode 100644
index 00000000..e25e429f
--- /dev/null
+++ b/src/Common/TLVParser.h
@@ -0,0 +1,80 @@
+//
+// Created by bshp on 1/20/23.
+//
+
+#ifndef ICC_EXTRACTOR_TLVPARSER_H
+#define ICC_EXTRACTOR_TLVPARSER_H
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <algorithm>
+#include <string>
+#include <memory>
+#include "iostream"
+#include "Tcdefs.h"
+using namespace std;
+struct TLVNode{
+	uint16_t Tag;				/*	T 	*/
+	uint16_t Length;			/*	L 	*/
+	unsigned char* Value;		/*	V 	*/
+	unsigned char TagSize;
+	unsigned char LengthSize;
+	uint16_t MoreFlag;			/* Used In Sub */
+	uint16_t SubFlag;			/* Does it have sub-nodes? */
+	uint16_t SubCount;
+	shared_ptr<TLVNode> Sub[256];
+	shared_ptr<TLVNode> Next;
+
+	~TLVNode() {
+        burn(Value, Length);
+        delete Value;
+	}
+};
+
+class TLVParser{
+private :
+
+	/* TLV node structure creation */
+	static shared_ptr<TLVNode> TLV_CreateNode();
+
+	/* Check if the bit is correct */
+	static uint16_t CheckBit(unsigned char value, int bit);
+
+	/* Parsing one TLV node */
+	static shared_ptr<TLVNode> TLV_Parse_One(unsigned char* buf,int size);
+
+	/* Parsing all TLV nodes */
+	static int TLV_Parse_SubNodes(shared_ptr<TLVNode> parent);
+
+	/* Parsing all sub-nodes (in width not in depth) of a given parent node */
+	static int TLV_Parse_All(shared_ptr<TLVNode> parent);
+
+	/* Recursive function to parse all nodes starting from a root parent node */
+	static void TLV_Parse_Sub(shared_ptr<TLVNode> parent);
+
+public:
+
+	/* Parsing TLV from a buffer and constructing TLV structure */
+	static shared_ptr<TLVNode> TLV_Parse(unsigned char* buf,int size);
+
+	/* Finding a TLV node with a particular tag */
+	static shared_ptr<TLVNode> TLV_Find(shared_ptr<TLVNode> node,uint16_t tag);
+};
+
+/* The definition of the exception class related to the TLV parsing */
+class TLVException
+{
+public:
+	TLVException(std::string errormessage): m_errormessage(errormessage){}
+
+	/* Get the error message */
+	inline std::string ErrorMessage() const
+	{
+		return m_errormessage;
+	}
+
+protected:
+	std::string m_errormessage;
+};
+
+#endif //ICC_EXTRACTOR_TLVPARSER_H