Hi..
I am compiling a custom kernel using 2.6.19-2 and need Linux Socket
Filters enabled for one of the apps we will be running. I have found
the documentation for what I want, Documentation/networking/filter.txt.
But it is not cleat to me what option I should be enabling in the kernel
config. Are Socket filters part of NETFILTER, if not what should I
enable? If so, will enabling NETFILTERS be enough or are there other
sub categories of netfilter I would need to enable. I need this for
dhclient and will be filtering UDP traffic.
I am checking briefly the documentation you referred to. Honestly, I am
not sure if this is really what you want (or maybe you should recheck
your requirement). I think Netfilter will suit you better, because it
operates not in socket level but right in the TCP/UDP/ICMP packet
processing. There are various hooks you use to handle various situation.
Also, there is also some filters ready to be used. With a little bit
hacking, maybe you can customize it to meet your need, thus saving your
time. Please visit Netfilter website for further information. Good luck.
regards,
Mulyadi.
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