diff options
Diffstat (limited to 'net/bridge/netfilter/ebt_dnat.c')
| -rw-r--r-- | net/bridge/netfilter/ebt_dnat.c | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/net/bridge/netfilter/ebt_dnat.c b/net/bridge/netfilter/ebt_dnat.c index 4582659dff0..74262e9a566 100644 --- a/net/bridge/netfilter/ebt_dnat.c +++ b/net/bridge/netfilter/ebt_dnat.c @@ -8,29 +8,22 @@ * */ +#include <linux/netfilter.h> #include <linux/netfilter_bridge/ebtables.h> #include <linux/netfilter_bridge/ebt_nat.h> #include <linux/module.h> #include <net/sock.h> -static int ebt_target_dnat(struct sk_buff **pskb, unsigned int hooknr, +static int ebt_target_dnat(struct sk_buff *skb, unsigned int hooknr, const struct net_device *in, const struct net_device *out, const void *data, unsigned int datalen) { struct ebt_nat_info *info = (struct ebt_nat_info *)data; - if (skb_shared(*pskb) || skb_cloned(*pskb)) { - struct sk_buff *nskb; + if (skb_make_writable(skb, 0)) + return NF_DROP; - nskb = skb_copy(*pskb, GFP_ATOMIC); - if (!nskb) - return NF_DROP; - if ((*pskb)->sk) - skb_set_owner_w(nskb, (*pskb)->sk); - kfree_skb(*pskb); - *pskb = nskb; - } - memcpy(eth_hdr(*pskb)->h_dest, info->mac, ETH_ALEN); + memcpy(eth_hdr(skb)->h_dest, info->mac, ETH_ALEN); return info->target; } |