Re: ctnetlink questions

[Patrick McHardy <kaber@trash.net>]

Henrik Nordstrom wrote:

>On Mon, 20 Oct 2003, Harald Welte wrote:
>  
>
>>again, this seems a shortcoming of the netlink infrastructure.  This
>>would be much better, if we'd actually have a reference to the socket of
>>the userspace process (since table dumps could be unicast anyway...).
>>    
>>
>
>If it is a shortcoming of netlink or a shortcoming of how to reliably dump 
>the content of a large hash buckets can be argued, but I tend to agree 
>with you here.
>
>The dump operation should be connetion oriented with the userspace 
>application, not purely datagram based. The kernel should know for certain 
>if the userspace application terminates a dump operation mid-air.
>

Actually the kernel knows. If the socket is closed cb->done() is called.
However the kernel can not know if userspace still keeps the socket open
but doesn't read anymore. Connection oriented sockets don't help with this.

Best regards,
Patrick