From e02f7d1603c955126e88cc08149509d00be25cb9 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Mon, 27 Feb 2006 13:02:52 -0800 Subject: [PATCH] [NETFILTER]: nf_queue: don't copy registered rerouter data Use the registered data structure instead of copying it. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/netfilter/nf_queue.c | 28 +++++++++------------------- 1 file changed, 9 insertions(+), 19 deletions(-) diff --git a/net/netfilter/nf_queue.c b/net/netfilter/nf_queue.c index d3a4f30a7f2..24ad41e6601 100644 --- a/net/netfilter/nf_queue.c +++ b/net/netfilter/nf_queue.c @@ -16,7 +16,7 @@ * for queueing and must reinject all packets it receives, no matter what. */ static struct nf_queue_handler *queue_handler[NPROTO]; -static struct nf_queue_rerouter *queue_rerouter; +static struct nf_queue_rerouter *queue_rerouter[NPROTO]; static DEFINE_RWLOCK(queue_handler_lock); @@ -64,7 +64,7 @@ int nf_register_queue_rerouter(int pf, struct nf_queue_rerouter *rer) return -EINVAL; write_lock_bh(&queue_handler_lock); - memcpy(&queue_rerouter[pf], rer, sizeof(queue_rerouter[pf])); + queue_rerouter[pf] = rer; write_unlock_bh(&queue_handler_lock); return 0; @@ -77,7 +77,7 @@ int nf_unregister_queue_rerouter(int pf) return -EINVAL; write_lock_bh(&queue_handler_lock); - memset(&queue_rerouter[pf], 0, sizeof(queue_rerouter[pf])); + queue_rerouter[pf] = NULL; write_unlock_bh(&queue_handler_lock); return 0; } @@ -123,7 +123,7 @@ int nf_queue(struct sk_buff **skb, return 1; } - info = kmalloc(sizeof(*info)+queue_rerouter[pf].rer_size, GFP_ATOMIC); + info = kmalloc(sizeof(*info)+queue_rerouter[pf]->rer_size, GFP_ATOMIC); if (!info) { if (net_ratelimit()) printk(KERN_ERR "OOM queueing packet %p\n", @@ -155,14 +155,14 @@ int nf_queue(struct sk_buff **skb, if (physoutdev) dev_hold(physoutdev); } #endif - if (queue_rerouter[pf].save) - queue_rerouter[pf].save(*skb, info); + if (queue_rerouter[pf]->save) + queue_rerouter[pf]->save(*skb, info); status = queue_handler[pf]->outfn(*skb, info, queuenum, queue_handler[pf]->data); - if (status >= 0 && queue_rerouter[pf].reroute) - status = queue_rerouter[pf].reroute(skb, info); + if (status >= 0 && queue_rerouter[pf]->reroute) + status = queue_rerouter[pf]->reroute(skb, info); read_unlock(&queue_handler_lock); @@ -322,22 +322,12 @@ int __init netfilter_queue_init(void) { #ifdef CONFIG_PROC_FS struct proc_dir_entry *pde; -#endif - queue_rerouter = kmalloc(NPROTO * sizeof(struct nf_queue_rerouter), - GFP_KERNEL); - if (!queue_rerouter) - return -ENOMEM; -#ifdef CONFIG_PROC_FS pde = create_proc_entry("nf_queue", S_IRUGO, proc_net_netfilter); - if (!pde) { - kfree(queue_rerouter); + if (!pde) return -1; - } pde->proc_fops = &nfqueue_file_ops; #endif - memset(queue_rerouter, 0, NPROTO * sizeof(struct nf_queue_rerouter)); - return 0; } -- 2.20.1