Exporting IPSec routes to OSPF

Hi I've got a handful of Linux IPsec gateways, some running OpenSwan some with ipsec-tools. Each gateway handles a number of tunnels with dozens of remote subnets. Unfortunately these remote subnets don't show up in the Linux routing table, i.e. "ip route show" only comes up with the standard two records for the link subnet and for the default route. Obviously bird doesn't see the ipsec routes either. Now I've got a script that parses the output of "ip xfrm policy show" and exports them as static routes but that involves a manual rebuild every time the tunnels change and "birdc configure" to propagate the changes. Is there any way to automatically export these ipsec routes to OSPF? Thanks! Michael