Re: [Qemu-devel] [PATCH] sockets: ensure we can bind to both ipv4 & ipv6 separately

[Gerd Hoffmann]

  Hi,

> Separately from this patch, I noticed one further possible
> problem, 
> 
> Currently, the ipv4=on|off/ipv6=on|off settings are only
> used to determine what getaddrinfo results we request/use.
> 
> This leads to the somewhat odd situation where if you set
> ipv4=off,ipv6=on, QEMU won't be listening on an IPv4
> socket, but *will still* accept IPv4 clients over the IPv6
> socket due to our use of IPV6_V6ONLY=off.

Hmm, maybe we should just use IPV6_V6ONLY=on unconditionally?

Now that qemu finally supports multiple listening sockets we should be
able to do the switch without regressions, and it also should remove all
those nasty corner cases ...

cheers,
  Gerd