return 0;
}
+/* Special input handler for packets caught by router alert option.
+ They are selected only by protocol field, and then processed likely
+ local ones; but only if someone wants them! Otherwise, router
+ not running rsvpd will kill RSVP.
+
+ It is user level problem, what it will make with them.
+ I have no idea, how it will masquearde or NAT them (it is joke, joke :-)),
+ but receiver should be enough clever f.e. to forward mtrace requests,
+ sent to multicast group to reach destination designated router.
+ */
+
struct ip_ra_chain {
struct ip_ra_chain __rcu *next;
struct sock *sk;
struct rcu_head rcu;
};
-extern struct ip_ra_chain __rcu *ip_ra_chain;
-
/* IP flags. */
#define IP_CE 0x8000 /* Flag: "Congestion" */
#define IP_DF 0x4000 /* Flag: "Don't Fragment" */
#endif
struct ipv4_devconf *devconf_all;
struct ipv4_devconf *devconf_dflt;
+ struct ip_ra_chain __rcu *ra_chain;
#ifdef CONFIG_IP_MULTIPLE_TABLES
struct fib_rules_ops *rules_ops;
bool fib_has_custom_rules;
struct net_device *dev = skb->dev;
struct net *net = dev_net(dev);
- for (ra = rcu_dereference(ip_ra_chain); ra; ra = rcu_dereference(ra->next)) {
+ for (ra = rcu_dereference(net->ipv4.ra_chain); ra; ra = rcu_dereference(ra->next)) {
struct sock *sk = ra->sk;
/* If socket is bound to an interface, only report
*/
if (sk && inet_sk(sk)->inet_num == protocol &&
(!sk->sk_bound_dev_if ||
- sk->sk_bound_dev_if == dev->ifindex) &&
- net_eq(sock_net(sk), net)) {
+ sk->sk_bound_dev_if == dev->ifindex)) {
if (ip_is_fragment(ip_hdr(skb))) {
if (ip_defrag(net, skb, IP_DEFRAG_CALL_RA_CHAIN))
return true;
return 0;
}
-
-/* Special input handler for packets caught by router alert option.
- They are selected only by protocol field, and then processed likely
- local ones; but only if someone wants them! Otherwise, router
- not running rsvpd will kill RSVP.
-
- It is user level problem, what it will make with them.
- I have no idea, how it will masquearde or NAT them (it is joke, joke :-)),
- but receiver should be enough clever f.e. to forward mtrace requests,
- sent to multicast group to reach destination designated router.
- */
-struct ip_ra_chain __rcu *ip_ra_chain;
static DEFINE_SPINLOCK(ip_ra_lock);
{
struct ip_ra_chain *ra, *new_ra;
struct ip_ra_chain __rcu **rap;
+ struct net *net = sock_net(sk);
if (sk->sk_type != SOCK_RAW || inet_sk(sk)->inet_num == IPPROTO_RAW)
return -EINVAL;
new_ra = on ? kmalloc(sizeof(*new_ra), GFP_KERNEL) : NULL;
spin_lock_bh(&ip_ra_lock);
- for (rap = &ip_ra_chain;
+ for (rap = &net->ipv4.ra_chain;
(ra = rcu_dereference_protected(*rap,
lockdep_is_held(&ip_ra_lock))) != NULL;
rap = &ra->next) {