Hi

My openstack is mitaka. L3 plugin is neutron.services.l3_router.l3_router_plugin:L3RouterPlugin

When connecting a subnet with a router, I want to get the mapping relationship for (router_id: subnet). I want to get the information from L3 plugin. So I did some change in the code.

I added a method in neutron.services.l3_router.l3_router_plugin:L3RouterPlugin like below:

def add_router_interface(self, context, router_id, interface_info):
    router_interface_info = super(L3RouterPlugin, self).add_router_interface(context, router_id, interface_info)
    self.notify_router_interface_action(context, router_interface_info, 'add')

    # todo : to get the mapping relationship.
    return router_interface_info

I do not know if this is the right way to do this thing. Please give some advice