scheduler: compute time-average nr_running per run-queue
[linux-2.6.git] / include / linux / netfilter_bridge.h
index 55689f3..0ddd161 100644 (file)
@@ -7,6 +7,7 @@
 #include <linux/netfilter.h>
 #include <linux/if_ether.h>
 #include <linux/if_vlan.h>
+#include <linux/if_pppox.h>
 
 /* Bridge Hooks */
 /* After promisc drops, checksum checks. */
@@ -40,26 +41,61 @@ enum nf_br_hook_priorities {
 
 #define BRNF_PKT_TYPE                  0x01
 #define BRNF_BRIDGED_DNAT              0x02
-#define BRNF_DONT_TAKE_PARENT          0x04
-#define BRNF_BRIDGED                   0x08
-#define BRNF_NF_BRIDGE_PREROUTING      0x10
-
+#define BRNF_BRIDGED                   0x04
+#define BRNF_NF_BRIDGE_PREROUTING      0x08
+#define BRNF_8021Q                     0x10
+#define BRNF_PPPoE                     0x20
 
 /* 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)
 {
-       if (skb->nf_bridge)
+       if (skb->nf_bridge &&
+           skb->nf_bridge->mask & (BRNF_BRIDGED | BRNF_BRIDGED_DNAT))
                return nf_bridge_copy_header(skb);
        return 0;
 }
 
+static inline unsigned int nf_bridge_encap_header_len(const struct sk_buff *skb)
+{
+       switch (skb->protocol) {
+       case __cpu_to_be16(ETH_P_8021Q):
+               return VLAN_HLEN;
+       case __cpu_to_be16(ETH_P_PPP_SES):
+               return PPPOE_SES_HLEN;
+       default:
+               return 0;
+       }
+}
+
+static inline unsigned int nf_bridge_mtu_reduction(const struct sk_buff *skb)
+{
+       if (unlikely(skb->nf_bridge->mask & BRNF_PPPoE))
+               return PPPOE_SES_HLEN;
+       return 0;
+}
+
+extern int br_handle_frame_finish(struct sk_buff *skb);
+/* Only used in br_device.c */
+static inline int br_nf_pre_routing_finish_bridge_slow(struct sk_buff *skb)
+{
+       struct nf_bridge_info *nf_bridge = skb->nf_bridge;
+
+       skb_pull(skb, ETH_HLEN);
+       nf_bridge->mask ^= BRNF_BRIDGED_DNAT;
+       skb_copy_to_linear_data_offset(skb, -(ETH_HLEN-ETH_ALEN),
+                                      skb->nf_bridge->data, ETH_HLEN-ETH_ALEN);
+       skb->dev = nf_bridge->physindev;
+       return br_handle_frame_finish(skb);
+}
+
 /* 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(const struct sk_buff *skb)
+static inline unsigned int nf_bridge_pad(const struct sk_buff *skb)
 {
-       return (skb->nf_bridge && skb->protocol == htons(ETH_P_8021Q))
-               ? VLAN_HLEN : 0;
+       if (skb->nf_bridge)
+               return nf_bridge_encap_header_len(skb);
+       return 0;
 }
 
 struct bridge_skb_cb {