Draft: Captive Portal URI handling [RFC8910]
Summary
This merge request adds support for handling a Captive Portal Identification. This includes reading the captive portal url from dhcp options and router advertisements.
partially resolves #1305
This is a draft for now in order to get feedback during development. Feel free to reply below.
Purpose
The purpose of this change is to be able receiving RFC8910 DHCP options/RA and provide that information to the user or other mechanisms like the captive portal api (RFC 8908).
Checklist
Please read https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/blob/main/CONTRIBUTING.md before opening the merge request. In particular, check that:
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the subject for all commits is concise and explicative -
the message for all commits explains the reason for the change -
the source is properly formatted -
any relevant documentation is up to date -
you have added unit tests if applicable