On Sun, Jul 21, 2019 at 08:54:32PM +0200, Florian Westphal wrote: > Pablo Neira Ayuso <pa...@netfilter.org> wrote: > > Cc'ing Phil. > > > > On Sun, Jul 21, 2019 at 12:43:05PM +0200, Florian Westphal wrote: > > > As noted by Felix Dreissig, fib documentation is quite terse, so explain > > > the 'saddr . iif' example with a few more words. > > > > There are patches to disallow ifindex 0 from Phil > > WHich ones? > I only see those that make meta write 0 in case iface doesn't exist, > so it does exactly what fib does.
It is message-ID 20190718033940.12820-1-p...@nwl.cc and follow-ups, trying to prevent users from matching against the values we decided to use for "no data available" situations. This whole attempt feels a bit futile. Maybe we should introduce something to signal "no value" so that cmp expression will never match for '==' and always for '!='? Not sure how to realize this via registers. Also undecided about '<' and '>' ops. Cheers, Phil
