ssl handshake packets sniffer

The Test task

You should create a go application (go version >= 1.13) that will do the following:

1. Run on a 64-bit Linux distribution (Centos, Ubuntu, Debian).
2. Sniff tcp/ip packets.
3. Detect among the sniffed packets detect SSL (https) handshake packets.
4. Print to stdout each detection in the following format: IP_SRC,TCP_SRC,IP_DST,TCP_DST,COUNT(TCP_OPTIONS).

Alternative task

Do 4. using a websocket transport instead of stdout. This means you should create a minimal set of html/css/js code that will display the output whenever a user visits the dedicated URL.

Optional task

The app should work in Docker. Make sure you provide all the details how it would run there.

Notes:

• COUNT(TCP_OPTIONS) is a number of TCP_OPTIONS contained in the TCP/IP packet.
• Please do the task as clean as possible.
• Write at least some unit-tests (hint: you can use pre-saved packets as a test data).
• You cannot use tcpdump for this task or any other shell command.
• The task should be published to GitHub.
• There should be a readme file with a description on how to compile and use the app.

Usage

docker run --rm --name sniffer -p 443:443 wawan/sniffer