tipc: name tipc name table support net namespace

TIPC name table is used to store the mapping relationship between
TIPC service name and socket port ID. When tipc supports namespace,
it allows users to publish service names only owned by a certain
namespace. Therefore, every namespace must have its private name
table to prevent service names published to one namespace from being
contaminated by other service names in another namespace. Therefore,
The name table global variable (ie, nametbl) and its lock must be
moved to tipc_net structure, and a parameter of namespace must be
added for necessary functions so that they can obtain name table
variable defined in tipc_net structure.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Tested-by: Tero Aho <Tero.Aho@coriant.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/tipc/msg.h b/net/tipc/msg.h
index 75f3242..69f37e6 100644
--- a/net/tipc/msg.h
+++ b/net/tipc/msg.h
@@ -749,7 +749,7 @@
 
 struct sk_buff *tipc_buf_acquire(u32 size);
 bool tipc_msg_reverse(struct sk_buff *buf, u32 *dnode, int err);
-int tipc_msg_eval(struct sk_buff *buf, u32 *dnode);
+int tipc_msg_eval(struct net *net, struct sk_buff *buf, u32 *dnode);
 void tipc_msg_init(struct tipc_msg *m, u32 user, u32 type, u32 hsize,
 		   u32 destnode);
 struct sk_buff *tipc_msg_create(uint user, uint type, uint hdr_sz,