Re: [iptables PATCH 0/3] xshared: Review option parsing

[Phil Sutter <phil@nwl.cc>]

On Fri, Nov 24, 2023 at 12:13:22PM +0100, Phil Sutter wrote:
> Faced with the need to extend optflags, inverse_for_options and
> commands_v_options arrays in order to integrate ebtables-specific
> options, I chose to get rid of them all instead.
> 
> Patch 1 replaces opt2char() function which didn't work well since not
> every option has printable short-option character. The callback-based
> replacement returns the long-option and should make error messages more
> readable this way.
> 
> Patch 2 elminates the inverse_for_options array along with the loop
> turning a given option into its bit's position for use in the array. The
> switch statement in the replacing callback is much easier to maintain
> and extend.
> 
> Patch 3 makes use of the fact that no command has a mandatory option
> anymore. So every combination is either allowed or not, and a single bit
> may indicate that.
> 
> Phil Sutter (3):
>   xshared: Introduce xt_cmd_parse_ops::option_name
>   xshared: Introduce xt_cmd_parse_ops::option_invert
>   xshared: Simplify generic_opt_check()

Series applied.