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

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Signed-off-by: Eric Leblond <eric@inl.fr>
Signed-off-by: Patrick McHardy <kaber@trash.net>
This commit is contained in:
Eric Leblond 2006-11-29 02:35:33 +01:00 committed by David S. Miller
parent 7b621c1ea6
commit 829e17a1a6
2 changed files with 9 additions and 0 deletions
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1
include/linux/netfilter/nfnetlink_queue.h
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@ -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)

8
net/netfilter/nfnetlink_queue.c
View file

@ -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;