[Buildroot] [PATCH 1/3] package/mbedtls: add BR2_PACKAGE_MBEDTLS_X509_UNSUPPORTED_CRITICAL_EXTENSION

[Yann E. MORIN <yann.morin.1998@free.fr>]

Nicola, All,

On 2020-04-24 13:32 +0200, Nicola Di Lieto spake thusly:
> On Fri, Apr 24, 2020 at 01:26:39PM +0200, Nicola Di Lieto wrote:
> >>
> >>I think we should refuse to use mbedtls with uacme.
> >
> >I agree, at least until mbedTLS changes its approach.
> 
> Just to clarify. It's sufficient to disable building ualpn at configure
> stage with --without-ualpn. The main binary uacme is fine, even without
> unsupported critical extensions in mbedTLS.

Still, I think we should just entirely drop support for embedtls.

Users would be surprised if they have a different behaviour between
using openssl v.s gnutls v.s embedtls.

Then, when embedtls is updated to undersdand that critical extension, we
can re-instate support for embedtls in uacme.

Until then, my opinion is that we should just stop building uacme with
embedtls.

Regards,
Yann E. MORIN.

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