diff options
Diffstat (limited to 'net/bridge/br_forward.c')
| -rw-r--r-- | net/bridge/br_forward.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/net/bridge/br_forward.c b/net/bridge/br_forward.c index d61e6f741125..7a241c396981 100644 --- a/net/bridge/br_forward.c +++ b/net/bridge/br_forward.c @@ -12,6 +12,7 @@ */ #include <linux/err.h> +#include <linux/slab.h> #include <linux/kernel.h> #include <linux/netdevice.h> #include <linux/skbuff.h> @@ -19,6 +20,11 @@ #include <linux/netfilter_bridge.h> #include "br_private.h" +static int deliver_clone(const struct net_bridge_port *prev, + struct sk_buff *skb, + void (*__packet_hook)(const struct net_bridge_port *p, + struct sk_buff *skb)); + /* Don't forward packets to originating port or forwarding diasabled */ static inline int should_deliver(const struct net_bridge_port *p, const struct sk_buff *skb) @@ -94,17 +100,22 @@ void br_deliver(const struct net_bridge_port *to, struct sk_buff *skb) } /* called with rcu_read_lock */ -void br_forward(const struct net_bridge_port *to, struct sk_buff *skb) +void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, struct sk_buff *skb0) { if (should_deliver(to, skb)) { - __br_forward(to, skb); + if (skb0) + deliver_clone(to, skb, __br_forward); + else + __br_forward(to, skb); return; } - kfree_skb(skb); + if (!skb0) + kfree_skb(skb); } -static int deliver_clone(struct net_bridge_port *prev, struct sk_buff *skb, +static int deliver_clone(const struct net_bridge_port *prev, + struct sk_buff *skb, void (*__packet_hook)(const struct net_bridge_port *p, struct sk_buff *skb)) { |