(I'm not sure I sent this mail, sorry if you already have one) ME: in general: when i can use the skb_transport_header function? JAN: When a transport header pointer has been set. Which is when the appropriate layer-X function has processed it. (After ip_rcv for example) On the output path, since it goes in the reverse direction, it will always be set. so, today i checked this. this is my iptables rule: iptables -t filter -A OUTPUT -d 192.168.0.1 -p tcp -j TAR and this is the code's lines of xt_TAR module printk(KERN_INFO "xt_TAR-----> tcp header: %p\n",skb_transport_header(skb)); printk(KERN_INFO "xt_TAR-----> ip header: %p\n",skb_network_header(skb)); but the skb_transport_header returns the same value of skb_network_header, so even though we are on the output path, the transport_header is not set........... what's wrong? -- Nicola Padovano e-mail: nicola.padovano@xxxxxxxxx web: http://npadovano.altervista.org -- 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
