On Thursday 13 December 2007, Julian Elischer wrote: > Max Laier wrote: > > On Wednesday 12 December 2007, Julian Elischer wrote: > >> So, I'm playing with some multiple routing table support.. > >> the first version is a minimal impact version with very limited > >> functionality. It's done that way so I can put it in RELENG_6/7 > >> without breaking ABIs (I hope). Later there will be a more flexible > >> version for-current. > >> > >> Here's the question.. > >> > >> I need a word to use to describe the network view one is currently > >> on.. e.g. if you are usinghe second routing table, you could say > >> I've set xxx to 1 (0 based).. > >> > >> > >> current;y in my code I'm using 'universe' but I don't like that.. > >> > >> one could think of it as a routing plane.. > >> each routing plane has he same interfaces on it but they are > >> logically treated differently becasue each plane has a different > >> routing table. > >> > >> > >> so here's an axample of it in use now... > >> the names should change... > >> > >> setuniverse 1 netstat -rn > >> [shows table 1] > >> setuniverse 2 route add 10.0.0.0/24 192.168.2.1 > >> setuinverse 1 route add 10.0.0.0/24 192.168.3.1 > >> setuniverse 2 route -n get 10.0.0.3 > >> [shows 192.168.2.1] > >> setuniverse 1 route -n get 10.0.0.3 > >> [shows 192.168.3.1] > >> setuniverse 2 start_apache > >> [appache starts, always using 192.168.2.1 to reach the 10.0.0 net. > >> > >> > >> also the syscall is setuniverse() > >> > >> so, you see I really need a better name.... > >> setrtab? > >> > >> rtab? rtbl? > >> > >> and the command should be called "????" > > > > FWIW, OpenBSD just added a "-T num" switch to concerned programs like > > route and netstat. As far as I can tell they rely entirely on pf to > > select a table - so there is no way to start a program "inside" a > > certain network view. OTOH, how - in your system - would you decide > > which table to use for forwarded packets? > > ipfw/pf/ipf rule (not yet added) :-)
pf has ifdef'ed out code to deal with the OpenBSD version of routing
tables. What it does is adding an mbuf_tag which carries the tableid and
ip_{{in,out}put,forward} take action accordingly.
> > More to the bikeshed pov, "universe" seems rather broad. "netview"
> > comes to mind. "rtabselect", though that has a lot of characters,
> > but then again "setuniverse" is even one char longer ;)
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