sctp: process sk_reuseport in sctp_get_port_local

When socks' sk_reuseport is set, the same port and address are allowed
to be bound into these socks who have the same uid.

Note that the difference from sk_reuse is that it allows multiple socks
to listen on the same port and address.

Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 1 deletions

diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 15d017f33a46..af9d494120ba 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -96,7 +96,9 @@ struct sctp_stream;
 
 struct sctp_bind_bucket {
         unsigned short  port;
-        unsigned short  fastreuse;
+        signed char     fastreuse;
+        signed char     fastreuseport;
+        kuid_t          fastuid;
         struct hlist_node       node;
         struct hlist_head       owner;
         struct net      *net;