From 829e17a1a602572ffa3beefe582dc103ee9fb9c7 Mon Sep 17 00:00:00 2001
From: Eric Leblond <eric@inl.fr>
Date: Wed, 29 Nov 2006 02:35:33 +0100
Subject: [PATCH] [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>
---
include/linux/netfilter/nfnetlink_queue.h | 1 +
net/netfilter/nfnetlink_queue.c | 8 ++++++++
2 files changed, 9 insertions(+)
diff --git a/include/linux/netfilter/nfnetlink_queue.h b/include/linux/netfilter/nfnetlink_queue.h
index 4beea3d6fda84..83e789633e353 100644
--- a/include/linux/netfilter/nfnetlink_queue.h
+++ b/include/linux/netfilter/nfnetlink_queue.h
@@ -82,6 +82,7 @@ enum nfqnl_attr_config {
NFQA_CFG_UNSPEC,
NFQA_CFG_CMD, /* nfqnl_msg_config_cmd */
NFQA_CFG_PARAMS, /* nfqnl_msg_config_params */
+ NFQA_CFG_QUEUE_MAXLEN, /* u_int32_t */
__NFQA_CFG_MAX
};
#define NFQA_CFG_MAX (__NFQA_CFG_MAX-1)
diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index 82e4454659bfb..a88a017da22c4 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;
--
2.30.2