#include <linux/netlink.h>
/*
- * Process Router Attention IP option
+ * Process Router Attention IP option (RFC 2113)
*/
int ip_call_ra_chain(struct sk_buff *skb)
{
struct sock *last = NULL;
struct net_device *dev = skb->dev;
- read_lock(&ip_ra_lock);
- for (ra = ip_ra_chain; ra; ra = ra->next) {
+ for (ra = rcu_dereference(ip_ra_chain); ra; ra = rcu_dereference(ra->next)) {
struct sock *sk = ra->sk;
/* If socket is bound to an interface, only report
sk->sk_bound_dev_if == dev->ifindex) &&
net_eq(sock_net(sk), dev_net(dev))) {
if (ip_hdr(skb)->frag_off & htons(IP_MF | IP_OFFSET)) {
- if (ip_defrag(skb, IP_DEFRAG_CALL_RA_CHAIN)) {
- read_unlock(&ip_ra_lock);
+ if (ip_defrag(skb, IP_DEFRAG_CALL_RA_CHAIN))
return 1;
- }
}
if (last) {
struct sk_buff *skb2 = skb_clone(skb, GFP_ATOMIC);
if (last) {
raw_rcv(last, skb);
- read_unlock(&ip_ra_lock);
return 1;
}
- read_unlock(&ip_ra_lock);
return 0;
}
}
if (unlikely(opt->srr)) {
- struct in_device *in_dev = in_dev_get(dev);
+ struct in_device *in_dev = __in_dev_get_rcu(dev);
+
if (in_dev) {
if (!IN_DEV_SOURCE_ROUTE(in_dev)) {
if (IN_DEV_LOG_MARTIANS(in_dev) &&
net_ratelimit())
printk(KERN_INFO "source route option %pI4 -> %pI4\n",
&iph->saddr, &iph->daddr);
- in_dev_put(in_dev);
goto drop;
}
-
- in_dev_put(in_dev);
}
if (ip_options_rcv_srr(skb))
else if (err == -ENETUNREACH)
IP_INC_STATS_BH(dev_net(skb->dev),
IPSTATS_MIB_INNOROUTES);
+ else if (err == -EXDEV)
+ NET_INC_STATS_BH(dev_net(skb->dev),
+ LINUX_MIB_IPRPFILTER);
goto drop;
}
}
#ifdef CONFIG_NET_CLS_ROUTE
if (unlikely(skb_dst(skb)->tclassid)) {
- struct ip_rt_acct *st = per_cpu_ptr(ip_rt_acct, smp_processor_id());
+ struct ip_rt_acct *st = this_cpu_ptr(ip_rt_acct);
u32 idx = skb_dst(skb)->tclassid;
st[idx&0xFF].o_packets++;
st[idx&0xFF].o_bytes += skb->len;
rt = skb_rtable(skb);
if (rt->rt_type == RTN_MULTICAST) {
- IP_UPD_PO_STATS_BH(dev_net(rt->u.dst.dev), IPSTATS_MIB_INMCAST,
+ IP_UPD_PO_STATS_BH(dev_net(rt->dst.dev), IPSTATS_MIB_INMCAST,
skb->len);
} else if (rt->rt_type == RTN_BROADCAST)
- IP_UPD_PO_STATS_BH(dev_net(rt->u.dst.dev), IPSTATS_MIB_INBCAST,
+ IP_UPD_PO_STATS_BH(dev_net(rt->dst.dev), IPSTATS_MIB_INBCAST,
skb->len);
return dst_input(skb);