ip_conntrack_event_cache(IPCT_STATUS, skb); 
static int gre_packet(struct ip_conntrack *ct,		      const struct sk_buff *skb,		      enum ip_conntrack_info conntrackinfo){	/* If we've seen traffic both ways, this is a GRE connection.	 * Extend timeout. */	if (ct->status & IPS_SEEN_REPLY) {		ip_ct_refresh_acct(ct, conntrackinfo, skb,				   ct->proto.gre.stream_timeout);		/* Also, more likely to be important, and not a probe. */		set_bit(IPS_ASSURED_BIT, &ct->status);	} else		ip_ct_refresh_acct(ct, conntrackinfo, skb,				   ct->proto.gre.timeout);		return NF_ACCEPT;}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/8ddec7460d2f5db3ac35812c03676b1473d1d668/ip_conntrack_proto_gre.c/buggy/net/ipv4/netfilter/ip_conntrack_proto_gre.c