dumpcap

Provides an interface to Wireshark's dumpcap tool for the go programming language (golang).

You can use dumpcap to

• find out about available network interfaces and their supported capabilities. See here for an example.
• Receive live statistics about traffic seen on each interface. See here for example.
• Capture traffic and save it to disk for further processing. See here for an example.

On most BSD/Linux distributions dumpcap comes suid'd so one can capture traffic using this isolated single-purpose process and does not need root credibilities to dissect captured traffic.

You may be interested in gopacket to dissect network data from within go.