X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Flinux%2Fnetfilter_bridge.h;h=55689f39f77a69523c82221c5696bcb2c54e002b;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=52502000bbca553f4f1e5c07d2fd93653a833169;hpb=76828883507a47dae78837ab5dec5a5b4513c667;p=linux-2.6.git

diff --git a/include/linux/netfilter_bridge.h b/include/linux/netfilter_bridge.h
index 52502000b..55689f39f 100644
--- a/include/linux/netfilter_bridge.h
+++ b/include/linux/netfilter_bridge.h
@@ -4,12 +4,9 @@
 /* bridge-specific defines for netfilter. 
  */
 
-#include <linux/config.h>
 #include <linux/netfilter.h>
-#if defined(__KERNEL__) && defined(CONFIG_BRIDGE_NETFILTER)
-#include <asm/atomic.h>
 #include <linux/if_ether.h>
-#endif
+#include <linux/if_vlan.h>
 
 /* Bridge Hooks */
 /* After promisc drops, checksum checks. */
@@ -47,75 +44,33 @@ 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 */
+extern int nf_bridge_copy_header(struct sk_buff *skb);
 static inline int nf_bridge_maybe_copy_header(struct sk_buff *skb)
 {
-	int err;
-
-	if (skb->nf_bridge) {
-		if (skb->protocol == __constant_htons(ETH_P_8021Q)) {
-			err = skb_cow(skb, 18);
-			if (err)
-				return err;
-			memcpy(skb->data - 18, skb->nf_bridge->data, 18);
-			skb_push(skb, 4);
-		} else {
-			err = skb_cow(skb, 16);
-			if (err)
-				return err;
-			memcpy(skb->data - 16, skb->nf_bridge->data, 16);
-		}
-	}
-	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);
+	if (skb->nf_bridge)
+		return nf_bridge_copy_header(skb);
+  	return 0;
 }
 
 /* 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
-int nf_bridge_pad(struct sk_buff *skb)
+static inline int nf_bridge_pad(const struct sk_buff *skb)
 {
-	if (skb->protocol == __constant_htons(ETH_P_IP))
-		return 0;
-	if (skb->nf_bridge) {
-		if (skb->protocol == __constant_htons(ETH_P_8021Q))
-			return 4;
-	}
-	return 0;
+ 	return (skb->nf_bridge && skb->protocol == htons(ETH_P_8021Q))
+		? VLAN_HLEN : 0;
 }
 
 struct bridge_skb_cb {
 	union {
-		__u32 ipv4;
+		__be32 ipv4;
 	} daddr;
 };
+
+#else
+#define nf_bridge_maybe_copy_header(skb)	(0)
+#define nf_bridge_pad(skb)			(0)
 #endif /* CONFIG_BRIDGE_NETFILTER */
 
 #endif /* __KERNEL__ */