On Mon, 23 Jan 2012, Jan Engelhardt wrote: > On Saturday 2012-01-21 21:21, Jozsef Kadlecsik wrote: > > > >Netlink makes too easy to add new attributes - and ignores unknown ones. > >However, in our case both communicating parties must know the exact > >capabilities of the other one: it's unacceptable that say a new flag is > >introduced and sent from userspace and got silently discarded by the > >(older) kernel. > > I thought about exposing the revision window here, much like > libtool's CURRENT and (CURRENT-AGE), rather than just a single rev > like ipset currently does. Does that make sense to you? > > 1. kern: 600--611, prog: , 599 => prog too old > 2. kern: 600--611, prog: 600, 610 => can use some/all features > 3. kern: 600--611, prog: 611 => can use all features > 4. kern: 600--611, prog: 612, => kernel too old That's perfect (ipset does the same, just it doesn't send a version range when the window size is zero). Best regards, Jozsef - E-mail : kadlec@xxxxxxxxxxxxxxxxx, kadlecsik.jozsef@xxxxxxxxxxxxx PGP key : http://www.kfki.hu/~kadlec/pgp_public_key.txt Address : Wigner Research Centre for Physics, Hungarian Academy of Sciences H-1525 Budapest 114, POB. 49, Hungary -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
