[Dnsmasq-discuss] Disabling IPv6 at compile time no longer working

[Andrew Miskell]

Massimo,

Simon’s reasoning for removing support is stated in the git commit. It was the source of a large number of ifdefs in the code, primarily for handling old embedded libc versions.

Removing the flags allowed him to remove all the ifdefs and make the code more maintainable overall. 

I’d actually probably also go as far as to assert that most of your arguments listed aren’t really that valid in the grand scheme of things.

> On Oct 30, 2020, at 7:10 AM, SALA MASSIMO <MASSIMO.SALA at ats-bg.it> wrote:
> 
> Hi Chris, Petr
> 
> I agree with Chris: I wish we could disable IPv6 support.
> 
> There are scenarios - like usage in intranet LANs,  IPv4 only - this feature is useless.
> 
> For best practice, unwanted features should be disabled:
> 1) avoid any possibility of hitting bugs in code paths that implemet this functionality;
> 2) reduce the surface of possible attacks;
> 3) IMHO you cannot force the users to be unaware testers of unused features.
> 
> 
> > It was intentionally removed in commit ee8750451b4[1], removed in 2.81 release.
> 
> I don't understand why this commit was approved.
> Which are the benefits for the developers?
> 
> Best regards, Massimo Sala
> 
> 
> 
> 
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