How to read BGP session information with C

[asadfx]

Friends,

I want to read BGP session information with C (in FreeBSD). The program will almost work like a sniffer. My FreeBSD box (which is not a BGP speaker) will look at BGP session information (after catching and parsing it) and take a decision based on the information it sees.

So, does anyone know how to catch and parse BGP session information using Unix C? Any suggestions? Any tutorial? Library (i.e. *.h files)?

Bye.

 

[SirDice]

The program will almost work like a sniffer.

Have a look at pcap(3) and perhaps bpf(4).

As far as I know there are no headers or libraries regarding BGP in the base. But there may be a port that has something like that. Otherwise you'll have to decode everything yourself.