udp: multicast packets need to check namespace

[linux-2.6-omap-h63xx.git] / net / ipv4 / udp.c

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 2095abc3caba90e2883febab41a9b792d405ba5f..cf02701ced48091d9eecb6765fe80934a3dc73c8 100644 (file)
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -284,7 +284,7 @@ struct sock *udp4_lib_lookup(struct net *net, __be32 saddr, __be16 sport,
 }
 EXPORT_SYMBOL_GPL(udp4_lib_lookup);
 
-static inline struct sock *udp_v4_mcast_next(struct sock *sk,
+static inline struct sock *udp_v4_mcast_next(struct net *net, struct sock *sk,
                                             __be16 loc_port, __be32 loc_addr,
                                             __be16 rmt_port, __be32 rmt_addr,
                                             int dif)
@@ -296,7 +296,8 @@ static inline struct sock *udp_v4_mcast_next(struct sock *sk,
        sk_for_each_from(s, node) {
                struct inet_sock *inet = inet_sk(s);
 
-               if (s->sk_hash != hnum                                  ||
+               if (!net_eq(sock_net(s), net)                           ||
+                   s->sk_hash != hnum                                  ||
                    (inet->daddr && inet->daddr != rmt_addr)            ||
                    (inet->dport != rmt_port && inet->dport)            ||
                    (inet->rcv_saddr && inet->rcv_saddr != loc_addr)    ||
@@ -1079,15 +1080,16 @@ static int __udp4_lib_mcast_deliver(struct net *net, struct sk_buff *skb,
        read_lock(&udp_hash_lock);
        sk = sk_head(&udptable[udp_hashfn(net, ntohs(uh->dest))]);
        dif = skb->dev->ifindex;
-       sk = udp_v4_mcast_next(sk, uh->dest, daddr, uh->source, saddr, dif);
+       sk = udp_v4_mcast_next(net, sk, uh->dest, daddr, uh->source, saddr, dif);
        if (sk) {
                struct sock *sknext = NULL;
 
                do {
                        struct sk_buff *skb1 = skb;
 
-                       sknext = udp_v4_mcast_next(sk_next(sk), uh->dest, daddr,
-                                                  uh->source, saddr, dif);
+                       sknext = udp_v4_mcast_next(net, sk_next(sk), uh->dest,
+                                                  daddr, uh->source, saddr,
+                                                  dif);
                        if (sknext)
                                skb1 = skb_clone(skb, GFP_ATOMIC);