Patrick McHardy wrote:
> Andrew McDonald wrote:
> 
>> Take account of whether a socket is bound to a particular device when
>> selecting an IPv6 raw socket to receive a packet. Also perform this
>> check when receiving IPv6 packets with router alert options.
> 
> I guess this one makes sense on top.
> 
> [IPV4/6]: Check if packet was actually delivered to a raw socket to decide whether to send an ICMP unreachable

The Last patch didn't handle ICMP socket filters correctly, here is a
better one.

If a raw socket is bound to a single device the packet might not be
delivered even though there is a socket in the protocol hash. Send
back an ICMP protocol unreachable in this case.