* Mike McLagan : Routing by source
*/
-#include <linux/config.h>
#include <linux/types.h>
#include <linux/mm.h>
#include <linux/sched.h>
* that reaches zero, we must reply an ICMP control message telling
* that the packet's lifetime expired.
*/
-
- iph = skb->nh.iph;
-
- if (iph->ttl <= 1)
+ if (skb->nh.iph->ttl <= 1)
goto too_many_hops;
if (!xfrm4_route_forward(skb))
goto drop;
- iph = skb->nh.iph;
rt = (struct rtable*)skb->dst;
if (opt->is_strictroute && rt->rt_dst != rt->rt_gateway)
too_many_hops:
/* Tell the sender its packet died... */
+ IP_INC_STATS_BH(IPSTATS_MIB_INHDRERRORS);
icmp_send(skb, ICMP_TIME_EXCEEDED, ICMP_EXC_TTL, 0);
drop:
kfree_skb(skb);