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 __constant_htons(ETH_P_8021Q):
+ return VLAN_HLEN;
+ case __constant_htons(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 {