Hi guys! i know the skb_transport_header to grab the tcp header of a packet...so i can write: struct tcphdr *tcp_header1 = (struct tcphdr*)skb_transport_header(skb), where skb is a certain packet. now, studying some source code that i've found some days ago, i've seen this: struct tcphdr *tcp_header2 = (void*)ip_hdr(skb) + ip_hdrlen(skb); I immediately thought that the two lines were identical, but but I was mistaken...in fact if i write this: printk(KERN_INFO "diff: %d\n",(int)((void*)tcp_header2 - (void*)tcp_header1)); i see, "diff: 20" so my question is: what's the difference between the two code lines? thank you! -- 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
