On 11/17/2011 2:06 PM, Abhijit Pawar wrote: > On 11/17/2011 12:03 PM, Mulyadi Santosa wrote: >> On Wed, Nov 16, 2011 at 17:50, Kesava Srinivas<vunnavafuture@xxxxxxxxx> wrote: >>> HI Guys, >>> >>> I'm a Newbie to Linux Kernel Development. Need some Clarification in >>> understanding Net-Filter Hooks. >>> >>> Can I register only for the Necessary Packets [Ex: IPSEC etc...] from the >>> Net-Filters?? AFAIK ; Net-Filter Module send the Packets to the >>> Corresponding Module based on pre-defined HOOKS. Let us say; there are Many >>> Packets reaching that Hooks; and if I am Interested only in some Packets >>> from Net-Filter module; can I do that ??? >> something like: >> iptables [some rules] -j ULOG >> ? >> >> Check "man iptables" and see if that suits your need. FYI ULOG target >> uses netlink to deliver the packet to user space for further >> processing. >> >> >> > Hi Kesava Srinivas, > If this is for any application in user space, I would recommend you take > a look at libPcap. > > Regards, > Abhijit Pawar Why don't you check for the type of the received packet ( taken from the queue) in your hook function and process it if matches your requirement else just return NF_ACCEPT so that it is processed by other hooks. Regards Shivanth > _______________________________________________ > Kernelnewbies mailing list > Kernelnewbies@xxxxxxxxxxxxxxxxx > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
