setsockopt with Netlink socket

[madhuresh <madhurag () iitk ac in>]

I wish to send some extra details (like per packet signal strength, rate 
etc) along with the standard packet to libpcap. For this i have 
implemented a netlink socket based communication between the driver 
(hostap-driver-0.4.7 - I am using Linux-Kernel). and libpcap. I can 
successfully send these details and can separate them at libpcap end.

Now i wish to do filtering at kernel space. Looking into the code of 
libpcap, i found that it implements PF_PACKET socket with kernel and 
uses setsockopt call for setting filter in the kernel. Can i use this 
setsockopt call for setting the same filter options in the netlink 
socket case ? As this time the packet queued in netlink socket have some 
extra details appended, wont this be a problem ?

Please guide appropriately

Thanks in advance

Madhuresh
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