> > What about rt6_remove_exception_rt? > > You can add a 'cache' hook to ip/iproute.c to delete the cached routes > and verify that it works. I seem to have misplaced my patch to do it. I don't think rt6_remove_exception_rt() needs any change. It is because it gets the route cache rt6_info as the input parameter, not specific saddr or daddr from a flow or a packet. It is guaranteed that the hash used in the exception table is generated from rt6_info->rt6i_dst and rt6_info->rt6i_src.
For the case where user tries to delete a cache route, ip6_route_del() calls rt6_find_cached_rt() to find the cached route first. And rt6_find_cached_rt() is taken care of to find the cached route according to both passed in src addr and f6i->fib6_src. So I think we are good here. From: David Ahern <dsah...@gmail.com> Date: Wed, May 15, 2019 at 9:38 AM To: Wei Wang, David Miller, <netdev@vger.kernel.org> Cc: Martin KaFai Lau, Wei Wang, Mikael Magnusson, Eric Dumazet > On 5/15/19 9:56 AM, David Ahern wrote: > > You can add a 'cache' hook to ip/iproute.c to delete the cached routes > > and verify that it works. I seem to have misplaced my patch to do it. > > found it.
