[NETFILTER]: nfnetlink_queue: allow changing queue length through netlink

Signed-off-by: Eric Leblond <eric@inl.fr>
Signed-off-by: Patrick McHardy <kaber@trash.net>

1 files changed, 8 insertions, 0 deletions

diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index 82e4454659bf..a88a017da22c 100644
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -947,6 +947,14 @@ nfqnl_recv_config(struct sock *ctnl, struct sk_buff *skb,
                                 ntohl(params->copy_range));
         }
 
+        if (nfqa[NFQA_CFG_QUEUE_MAXLEN-1]) {
+                __be32 *queue_maxlen;
+                queue_maxlen = NFA_DATA(nfqa[NFQA_CFG_QUEUE_MAXLEN-1]);
+                spin_lock_bh(&queue->lock);
+                queue->queue_maxlen = ntohl(*queue_maxlen);
+                spin_unlock_bh(&queue->lock);
+        }
+
 out_put:
         instance_put(queue);
         return ret;