NETDEBUG(printk(KERN_DEBUG "pmtu discovery on SA ESP/%08x/%08x\n", ntohl(esph->spi), ntohl(iph->daddr))); 
NETDEBUG(KERN_DEBUG "pmtu discovery on SA ESP/%08x/%08x\n", ntohl(esph->spi), ntohl(iph->daddr)); 
static void esp4_err(struct sk_buff *skb, u32 info){	struct iphdr *iph = (struct iphdr*)skb->data;	struct ip_esp_hdr *esph = (struct ip_esp_hdr*)(skb->data+(iph->ihl<<2));	struct xfrm_state *x;	if (skb->h.icmph->type != ICMP_DEST_UNREACH ||	    skb->h.icmph->code != ICMP_FRAG_NEEDED)		return;	x = xfrm_state_lookup((xfrm_address_t *)&iph->daddr, esph->spi, IPPROTO_ESP, AF_INET);	if (!x)		return;	NETDEBUG(printk(KERN_DEBUG "pmtu discovery on SA ESP/%08x/%08x\n",			ntohl(esph->spi), ntohl(iph->daddr)));	xfrm_state_put(x);}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/64ce207306debd7157f47282be94770407bec01c/esp4.c/clean/net/ipv4/esp4.c