Packet Sniffer

Monitors network activity and logs all packets that have been sent/received by the client's host.

Settings

In Main.kt, the PcapHandler is created with the following default parameters

const val TIMEOUT = 10
const val SNAPSHOT_BYTE_LENGTH = 65536
const val PACKET_COUNT = 100

Logs

Everytime a IPv4 or 1Pv6 packet is received/sent, the PacketListener will log both the encoded and decoded bytes of the payload and header, replacing all not printable characters with "."

When a packet is sniffed, the logger will only print if the src address' DNS entry wasn't cached. When it is, the following will be logged

XXXX [main] INFO  Packet Stats  - Handled Packet from some.example.source

Every minute, a snapshot of all packets will be logged in the following format

  "some_source" : [
    {
    "index": 0,
    "data": {
            "header": {
                "encoded": "encoded_data",
                "decoded": "decoded_data"
            },
            "payload": {
                "encoded": "encoded_data",
                "decoded": "decoded_data"
            }
        }
    }
]