bridge: don't route packets while learning
[powerpc.git] / net / bridge / br_forward.c
index 6ccd32b..ada7f49 100644 (file)
@@ -21,7 +21,7 @@
 #include "br_private.h"
 
 /* Don't forward packets to originating port or forwarding diasabled */
-static inline int should_deliver(const struct net_bridge_port *p, 
+static inline int should_deliver(const struct net_bridge_port *p,
                                 const struct sk_buff *skb)
 {
        return (skb->dev != p->dev && p->state == BR_STATE_FORWARDING);
@@ -38,13 +38,14 @@ int br_dev_queue_push_xmit(struct sk_buff *skb)
        if (packet_length(skb) > skb->dev->mtu && !skb_is_gso(skb))
                kfree_skb(skb);
        else {
-#ifdef CONFIG_BRIDGE_NETFILTER
                /* ip_refrag calls ip_fragment, doesn't copy the MAC header. */
-               nf_bridge_maybe_copy_header(skb);
-#endif
-               skb_push(skb, ETH_HLEN);
+               if (nf_bridge_maybe_copy_header(skb))
+                       kfree_skb(skb);
+               else {
+                       skb_push(skb, ETH_HLEN);
 
-               dev_queue_xmit(skb);
+                       dev_queue_xmit(skb);
+               }
        }
 
        return 0;
@@ -70,7 +71,7 @@ static void __br_forward(const struct net_bridge_port *to, struct sk_buff *skb)
 
        indev = skb->dev;
        skb->dev = to->dev;
-       skb->ip_summed = CHECKSUM_NONE;
+       skb_forward_csum(skb);
 
        NF_HOOK(PF_BRIDGE, NF_BR_FORWARD, skb, indev, skb->dev,
                        br_forward_finish);
@@ -100,7 +101,7 @@ void br_forward(const struct net_bridge_port *to, struct sk_buff *skb)
 
 /* called under bridge lock */
 static void br_flood(struct net_bridge *br, struct sk_buff *skb, int clone,
-       void (*__packet_hook)(const struct net_bridge_port *p, 
+       void (*__packet_hook)(const struct net_bridge_port *p,
                              struct sk_buff *skb))
 {
        struct net_bridge_port *p;