sctp: Make the endpoint hashtable handle multiple network namespaces

- Use struct net in the hash calculation
- Use sock_net(endpoint.base.sk) in the endpoint lookups.
- On receive calculate the network namespace from skb->dev.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 3 insertions, 3 deletions

diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index 7c0504034583..87b119f74c4a 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -638,9 +638,9 @@ static inline int sctp_phashfn(struct net *net, __u16 lport)
 }
 
 /* This is the hash function for the endpoint hash table. */
-static inline int sctp_ep_hashfn(__u16 lport)
+static inline int sctp_ep_hashfn(struct net *net, __u16 lport)
 {
-        return lport & (sctp_ep_hashsize - 1);
+        return (net_hash_mix(net) + lport) & (sctp_ep_hashsize - 1);
 }
 
 /* This is the hash function for the association hash table. */
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index c089bb12af77..9f9de558541f 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -1426,7 +1426,7 @@ struct sctp_association *sctp_endpoint_lookup_assoc(
 int sctp_endpoint_is_peeled_off(struct sctp_endpoint *,
                                 const union sctp_addr *);
 struct sctp_endpoint *sctp_endpoint_is_match(struct sctp_endpoint *,
-                                        const union sctp_addr *);
+                                        struct net *, const union sctp_addr *);
 int sctp_has_association(const union sctp_addr *laddr,
                          const union sctp_addr *paddr);