tipc: make tipc node table aware of net namespace

Global variables associated with node table are below:
- node table list (node_htable)
- node hash table list (tipc_node_list)
- node table lock (node_list_lock)
- node number counter (tipc_num_nodes)
- node link number counter (tipc_num_links)

To make node table support namespace, above global variables must be
moved to tipc_net structure in order to keep secret for different
namespaces. As a consequence, these variables are allocated and
initialized when namespace is created, and deallocated when namespace
is destroyed. After the change, functions associated with these
variables have to utilize a namespace pointer to access them. So
adding namespace pointer as a parameter of these functions is the
major change made in the commit.

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>

1 files changed, 6 insertions, 5 deletions

diff --git a/net/tipc/net.c b/net/tipc/net.c
index 5ce9d62..de18aac 100644
--- a/net/tipc/net.c
+++ b/net/tipc/net.c
@@ -121,7 +121,7 @@ int tipc_net_start(struct net *net, u32 addr)
 	if (res)
 		return res;
 
-	tipc_nametbl_publish(TIPC_CFG_SRV, tipc_own_addr, tipc_own_addr,
+	tipc_nametbl_publish(net, TIPC_CFG_SRV, tipc_own_addr, tipc_own_addr,
 			     TIPC_ZONE_SCOPE, 0, tipc_own_addr);
 
 	pr_info("Started in network mode\n");
@@ -131,16 +131,17 @@ int tipc_net_start(struct net *net, u32 addr)
 	return 0;
 }
 
-void tipc_net_stop(void)
+void tipc_net_stop(struct net *net)
 {
 	if (!tipc_own_addr)
 		return;
 
-	tipc_nametbl_withdraw(TIPC_CFG_SRV, tipc_own_addr, 0, tipc_own_addr);
+	tipc_nametbl_withdraw(net, TIPC_CFG_SRV, tipc_own_addr, 0,
+			      tipc_own_addr);
 	rtnl_lock();
-	tipc_bearer_stop();
+	tipc_bearer_stop(net);
 	tipc_bclink_stop();
-	tipc_node_stop();
+	tipc_node_stop(net);
 	rtnl_unlock();
 
 	pr_info("Left network mode\n");