Hi Phil, On Thu, Sep 30, 2021 at 04:04:02PM +0200, Phil Sutter wrote: > Commandline parsing was widely identical with iptables and ip6tables. > This series adds the necessary code-changes to unify the parsers into a > common one. > > Changes since v1: > - Fix patch 12, the parser has to check existence of proto_parse > callback before dereferencing it. Otherwise arptables-nft segfaults if > '-p' option is given. LGTM. > - Patches 13-17 add all the arptables quirks to restore compatibility > with arptables-legacy. I didn't consider them important enough to push > them unless someone complains. Yet breaking existing scripts is bad > indeed. Please consider them RFC: If you consider (one of) them not > important, please NACk and I will drop them before pushing. For patch 13-16, you could display a warning for people to fix their scripts, so this particular (strange) behaviour in some cases can be dropped (at least, 13-15 look like left-over/bugs). For the check_inverse logic, I'd suggest to display a warning too, this is what it was done in iptables time ago to address this inconsistency. I'd probably keep back patch 17/17, the max chain name length was reduced by when the revision field was introduced and this resulted in no issue being reported.