Wireshark is an open-source packet analyzer. It is widely used for network troubleshooting, software and communication protocol development, etc.
Wireshark understands the structure of different networking protocols.
It can parse and display the fields, along with their meanings as specified by different networking protocols.
The parser of each protocol is called a dissector.
Wireshark is equipped with thousands of dissectors on different levels, including Ethernet, IPv4, UDP, SNMP, HTTP, and many more.
One can either write a dissector in C programming language and compile it into Wireshark binary, or write a dissector in Lua scripting language and load it when Wireshark starts.
The NDN packet format is a network layer protocol designed for Named Data Networking.
This project is to develop a Wireshark dissector for NDN packet format.
The dissector should:
- recognize NDN network layer packets in UDP packets, TCP streams, and WebSocket frames
- parse a NDN network layer packet into nested Type-Length-Value structure
- tag each Type code with its name (eg. 0x0a is tagged "Nonce")
- generate a warning field if the NDN packet is invalid (eg. required field is missing, wrong order of fields)
- display the top-level Type ("Interest" or "Data") and the Name (as an ndn: URI) in "Info" column
- Wireshark Developer's Guide, section 9 10 11
- Lua Documentation
- NDN Packet Format Specification
- NFD and other NDN programs, to generate packets for testing
- tlvdump, simple NDN packet decoder
- ndndump, NDN packet analyzer based on libpcap