On Tue, Apr 13, 2010 at 4:13 AM, Ali Hamidi <ali.hamidi759@xxxxxxxxx> wrote: > Is there any way to inject a newly created packet based on the > captured packet inside a netfilter hook call back function? > My Goal is to capture a packet change compress its tcp payload and > send it. i read ipcomp.c and i used its source. when i change skb size > (like len) and tail pointer kernel hangs. maybe the way to do, is to > create a new packet based on captured packet and ask kernel to send > it. I just don't know how to ask kernel to send a newly created > packet? I'm not sure this will work -- it's just an idea that comes to mind. Perhaps you could use TUN to inject a newly created packet from a userspace application? packet ---> netfilter rule with userspace target ---> userspace payload compressor ---> /dev/tunX -- Ben Gardiner Nanometrics Inc. +1 (613) 592-6776 x239 http://www.nanometrics.ca -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
