Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next

Pablo Neira Ayuso says:

====================
Netfilter updates for net-next

1) UAF in chain binding support from previous batch, from Dan Carpenter.

2) Queue up delayed work to expire connections with no destination,
   from Andrew Sy Kim.

3) Use fallthrough pseudo-keyword, from Gustavo A. R. Silva.

4) Replace HTTP links with HTTPS, from Alexander A. Klimov.

5) Remove superfluous null header checks in ip6tables, from
   Gaurav Singh.

6) Add extended netlink error reporting for expression.

7) Report EEXIST on overlapping chain, set elements and flowtable
   devices.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 22 insertions, 0 deletions

diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index bcac316addab..678c5b14841c 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -210,6 +210,17 @@ static void update_defense_level(struct netns_ipvs *ipvs)
 	local_bh_enable();
 }
 
+/* Handler for delayed work for expiring no
+ * destination connections
+ */
+static void expire_nodest_conn_handler(struct work_struct *work)
+{
+	struct netns_ipvs *ipvs;
+
+	ipvs = container_of(work, struct netns_ipvs,
+			    expire_nodest_conn_work.work);
+	ip_vs_expire_nodest_conn_flush(ipvs);
+}
 
 /*
  *	Timer for checking the defense
@@ -1164,6 +1175,12 @@ static void __ip_vs_del_dest(struct netns_ipvs *ipvs, struct ip_vs_dest *dest,
 	list_add(&dest->t_list, &ipvs->dest_trash);
 	dest->idle_start = 0;
 	spin_unlock_bh(&ipvs->dest_trash_lock);
+
+	/* Queue up delayed work to expire all no destination connections.
+	 * No-op when CONFIG_SYSCTL is disabled.
+	 */
+	if (!cleanup)
+		ip_vs_enqueue_expire_nodest_conns(ipvs);
 }
 
 
@@ -4086,6 +4103,10 @@ static int __net_init ip_vs_control_net_init_sysctl(struct netns_ipvs *ipvs)
 	queue_delayed_work(system_long_wq, &ipvs->defense_work,
 			   DEFENSE_TIMER_PERIOD);
 
+	/* Init delayed work for expiring no dest conn */
+	INIT_DELAYED_WORK(&ipvs->expire_nodest_conn_work,
+			  expire_nodest_conn_handler);
+
 	return 0;
 }
 
@@ -4093,6 +4114,7 @@ static void __net_exit ip_vs_control_net_cleanup_sysctl(struct netns_ipvs *ipvs)
 {
 	struct net *net = ipvs->net;
 
+	cancel_delayed_work_sync(&ipvs->expire_nodest_conn_work);
 	cancel_delayed_work_sync(&ipvs->defense_work);
 	cancel_work_sync(&ipvs->defense_work.work);
 	unregister_net_sysctl_table(ipvs->sysctl_hdr);