bgp community loggin/export

Hello, What is easiest or efficent way to get bgp commynity info out from bird? Our need is make some iptables forward rules for traffic accounting based by bgp communities. Can we get communities to syslog when advertisement comes or can we read current status of them with birdc? -- F-Solutions Oy Tapio Haapala PL7, 90571 Oulu GSM 0400 998371 Skype burner- IRC Burner@ircnet