linux 2.6.16.38 w/ vs2.0.3-rc1

[linux-2.6.git] / include / linux / netfilter_bridge.h

diff --git a/include/linux/netfilter_bridge.h b/include/linux/netfilter_bridge.h
index 178a97e..5250200 100644 (file)
--- a/include/linux/netfilter_bridge.h
+++ b/include/linux/netfilter_bridge.h
@@ -47,6 +47,23 @@ enum nf_br_hook_priorities {
 #define BRNF_BRIDGED                   0x08
 #define BRNF_NF_BRIDGE_PREROUTING      0x10
 
+static inline
+struct nf_bridge_info *nf_bridge_alloc(struct sk_buff *skb)
+{
+       struct nf_bridge_info **nf_bridge = &(skb->nf_bridge);
+
+       if ((*nf_bridge = kmalloc(sizeof(**nf_bridge), GFP_ATOMIC)) != NULL) {
+               atomic_set(&(*nf_bridge)->use, 1);
+               (*nf_bridge)->mask = 0;
+               (*nf_bridge)->physindev = (*nf_bridge)->physoutdev = NULL;
+#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
+               (*nf_bridge)->netoutdev = NULL;
+#endif
+       }
+
+       return *nf_bridge;
+}
+
 /* Only used in br_forward.c */
 static inline int nf_bridge_maybe_copy_header(struct sk_buff *skb)
 {
@@ -69,6 +86,17 @@ static inline int nf_bridge_maybe_copy_header(struct sk_buff *skb)
        return 0;
 }
 
+static inline
+void nf_bridge_save_header(struct sk_buff *skb)
+{
+        int header_size = 16;
+
+       if (skb->protocol == __constant_htons(ETH_P_8021Q))
+               header_size = 18;
+
+       memcpy(skb->nf_bridge->data, skb->data - header_size, header_size);
+}
+
 /* This is called by the IP fragmenting code and it ensures there is
  * enough room for the encapsulating header (if there is one). */
 static inline