ability to set ALPS Application Settings

[GlenDC]

One can already set the ALPN (application layer protocol negotation settings).

However, we cannot yet set the ALPS (Application Settings), e.g. to h2.

[GlenDC]

Are you open to contributing this? AFAIK boring already supports it: https://github.com/google/boringssl/blob/master/include/openssl/ssl.h

Given it requires knowledge and encryption I don't think it's something that can just be inserted as an opaque extension as the escape hatch? Or am I missing something?

[rushilmehra]

Will take a look