Hi all, I want to be able to create a TCP packet in an iptables rules, similar to what REJECT --reject-with tcp-reset does, but this packet needs some data to go in the payload. Is there some iptables rule or kernel subsystem that already does this that I could look at for reference? Or, does anyone have an idea of how I would go about doing this? I already have a n RST that I am creating before this (a la REJECT), so I figured I would just skb_copy_expand() that packet and add the payload, but I'm not sure which fields in which structures need to be updated when I do that. I looked at pktgen, but that creates UDP packets. I also looked at the TCP stack, but that copies its data from userland and I wasn't sure if that series of operations would be the same from an iptables rule in interrupt context. Anybody have any ideas on how to do this? Thanks. -- [ Tobias DiPasquale ] 0x636f6465736c696e67657240676d61696c2e636f6d - : send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
