The port 7236 for TCP is registered with IANA by the
Wi-Fi Alliance for use for the Wi-Fi Display Protocol,
a.k.a. Miracast.
To establish the connection, the local DHCP server has to
be allowed to respond to requests on peer-to-peer Wi-Fi
networks.
Signed-off-by: Markus Göllnitz <camelcasenick@bewares.it>
[ci:skip-build]: already built successfully in CI
The networkmanager hotspot needs to have DHCP input enabled on the wifi
interfaces so the temporary dnsmasq instance can work. The
networkmanager backend is also switched to the nftables one so it can
create the ad-hoc hotspot forwarding/masquerade table.
Installs nftables config useful for pmOS::
1) drop all connections to wwan* (wildcard matching supported, are there
any other wwan iface names that wouldn't match this?)
2) allow ssh, drop from wwan (kinda redundant w/ the first rule, but
doesn't hurt..), allow DHCP on usb*
3) allow all incoming connections on usb* (with the -openusb subpackage)
4) enable logging all nftable events (with the -log subpackage), very
useful for debugging
fixes#1024
