[mythtv] Link-local IPV6 addresses

[Peter Bennett]

On 02/27/2017 06:31 AM, Stuart Auchterlonie wrote:
> Fundamentally it's a routing hint, since every possible link
> (ie network card) will have a link local address, all of which fall
> into fe80::/10 so you have multiple equal cost routes for that subnet.
>
> Is is posssible to ship the addresses around in QHostAddress's as that
> properly support the link scope?
>
>
> Regards
> Stuart
Hi Stuart

There already is code in MythTV (corecontext) that creates a lookup 
table for scope id based on link-local ip address. I have expanded on 
this and it now works with frontend-backend communications as well as 
with database connections. Outstanding is how to get http URLs for 
services to work, since the built in classes reject any host id in the 
URL if there is a percent sign in it. It seems it is not reaching the 
socket where the appropriate ip address scope needs to be set. The API 
we use is high level and does not seem to allow us to explicitly set the 
ip address, other than through the URL.

Peter