21.11.2020, 22:48, "Guy Yur" <guy...@gmail.com>: > Hi, > > When adding a route with a netmask, add_route() in route_ctl.c > adds the route with destination address masked. > If the add failed (for example, the route exists) it calls > lookup_prefix() with the original unmasked destination. Thank you for the report! Indeed, there is a problem w.r.t non-masked dst handling. I'll look into that in the end of this week.
> > In a scenario where a loopback route was added followed > by the network route being added, if the network route > is added again and the network route destination is the > same as the loopback route, lookup_prefix() will match on > the loopback route, not finding the network route and > add_route() will return ENOMEM instead of EEXIST. > Adding the route with just the network part returns EEXIST as expected. > > Example: > # route -6 add -host fd53::1111 -prefixlen 128 ::1 > # route -6 add -net fd53::1111 -prefixlen 64 ::1 > # route -6 add -net fd53::1111 -prefixlen 64 ::1 > route: writing to routing socket: Cannot allocate memory > add net fd53::1111: gateway ::1 fib 0: Cannot allocate memory > # route -6 add -net fd53:: -prefixlen 64 ::1 > add net fd53::: gateway ::1 fib 0: route already in table > > I was testing https://reviews.freebsd.org/D15406 > changes applied to r367863. > The changes call rtinit to add prefix route when > interface address is added/updated and uses the > interface address as the destination. > rtinit returned ENOMEM instead of EEXIST > causing dhcpcd to printCannot allocate memory. > > route commands above showing the problem were run > in r367863 without D15406 changesas well. > > Thanks, > Guy Yur > > _______________________________________________ > freebsd-current@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org" _______________________________________________ freebsd-current@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
