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tunnels: harmonize cleanup done on skb on rx path

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The goal of this patch is to harmonize cleanup done on a skbuff on rx path.
Before this patch, behaviors were different depending of the tunnel type.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nicolas Dichtel 2013-09-02 15:34:58 +02:00 • committed by David S. Miller
parent 963a88b31d
commit ea23192e8e
7 changed files with 13 additions and 26 deletions
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12
include/net/dst.h
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@ -311,11 +311,13 @@ static inline void skb_dst_force(struct sk_buff *skb)
* __skb_tunnel_rx - prepare skb for rx reinsert
* @skb: buffer
* @dev: tunnel device
* @net: netns for packet i/o
*
* After decapsulation, packet is going to re-enter (netif_rx()) our stack,
* so make some cleanups. (no accounting done)
*/
static inline void __skb_tunnel_rx(struct sk_buff *skb, struct net_device *dev)
static inline void __skb_tunnel_rx(struct sk_buff *skb, struct net_device *dev,
struct net *net)
{
skb->dev = dev;
@ -327,8 +329,7 @@ static inline void __skb_tunnel_rx(struct sk_buff *skb, struct net_device *dev)
if (!skb->l4_rxhash)
skb->rxhash = 0;
skb_set_queue_mapping(skb, 0);
skb_dst_drop(skb);
nf_reset(skb);
skb_scrub_packet(skb, !net_eq(net, dev_net(dev)));
}
/**
@ -340,12 +341,13 @@ static inline void __skb_tunnel_rx(struct sk_buff *skb, struct net_device *dev)
* so make some cleanups, and perform accounting.
* Note: this accounting is not SMP safe.
*/
static inline void skb_tunnel_rx(struct sk_buff *skb, struct net_device *dev)
static inline void skb_tunnel_rx(struct sk_buff *skb, struct net_device *dev,
struct net *net)
{
/* TODO : stats should be SMP safe */
dev->stats.rx_packets++;
dev->stats.rx_bytes += skb->len;
__skb_tunnel_rx(skb, dev);
__skb_tunnel_rx(skb, dev, net);
}
/* Children define the path of the packet through the