print_tcp_skb.c

static void print_skb_stuff(const struct sk_buff *skb)
{
	struct tcphdr _tcph;
	const struct tcphdr *tcph;
	
	tcph = skb_header_pointer(skb, ip_hdrlen(skb),
		sizeof(_tcph), &_tcph);
	
	printk("syn=%u ack=%u psh=%u fin=%u seq=%u ack_seq=%u skb->len %u csum=%x\n",
	    tcph->syn,
	    tcph->ack,
	    tcph->psh,
	    tcph->fin,
	    ntohl(tcph->ack_seq),
	    ntohl(tcph->seq),
	    skb->len,
	    tcph->check
	);
	return;
}