string: factorize skip_spaces and export it to be generally available

[safe/jmp/linux-2.6] / include / linux / netfilter_bridge.h

diff --git a/include/linux/netfilter_bridge.h b/include/linux/netfilter_bridge.h
index 1906003..f8105e5 100644 (file)
--- a/include/linux/netfilter_bridge.h
+++ b/include/linux/netfilter_bridge.h
@@ -50,23 +50,31 @@ enum nf_br_hook_priorities {
 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;
+       }
+}
+
 /* 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)
 {
-       int padding = 0;
-
-       if (skb->nf_bridge && skb->protocol == htons(ETH_P_8021Q))
-               padding = VLAN_HLEN;
-       else if (skb->nf_bridge && skb->protocol == htons(ETH_P_PPP_SES))
-               padding = PPPOE_SES_HLEN;
-
-       return padding;
+       if (skb->nf_bridge)
+               return nf_bridge_encap_header_len(skb);
+       return 0;
 }
 
 struct bridge_skb_cb {