thediveo / netdb Goto Github PK

I'm working on replacing an ad-hoc implementation of protocol and service lookups in one of my projects, a NetFlow collection and metadata enrichment agent with this library. It was pretty simple to slot this library in place for protocols and services, but my project also supports adding some metadata about the Ethernet protocol type of the flow. Adding support for /etc/ethertypes to this project would be really helpful and I'd be able to get rid of the hard-coded mappings.

Some ideas for the API:

func main() {
	ipv4 := netdb.EtherTypeByNumber(0x0800)
	fmt.Println(ipv4.Name)
	// Output: IPv4
	fmt.Println(ipv4.Number)
	// Output: 2048
	fmt.Println(ipv4.Aliases)
	// Output: [ip ipv4]
	fmt.Println(ipv4.Comment)
	// Output: Internet IP (IPv4)
}

func main() {
	dot1q := netdb.EtherTypeByName("dot1q")
	fmt.Println(dot1q.Name)
	// Output: 802_1q
	fmt.Println(dot1q.Number)
	// Output: 33024
	fmt.Println(dot1q.Aliases)
	// Output: [8021q 1q 802.1q dot1q]
	fmt.Println(dot1q.Comment)
	// Output: 802.1Q Virtual LAN tagged frame
}

Not totally sure if the comment parsing is really necessary, but it does contain some useful info sometimes.