Hello.

Thank you for your comment.

James Morris wrote:
quoted text
> I'm guessing you need this to determine the receiving process, rather than 
> the socket (which is available via security_sock_rcv_skb()).
Use of security_sock_rcv_skb() was discussed at http://lkml.org/lkml/2007/8/28/74 ,
and answer is at http://lkml.org/lkml/2007/10/2/56 .

quoted text
> If so, is this to interactively determine from the user or admin whether 
> the packet should be accepted/denied for the receiving process?
Yes, it is to determine whether the packet should be accepted/denied
based on the receiving process (like what anti-virus software's firewall does).

Regards.

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