diff options
| author | Patrick McHardy <kaber@trash.net> | 2007-05-03 03:36:16 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2007-05-03 03:36:16 -0700 |
| commit | fc38582db98533066f4ba64f948720483fbfe7b2 (patch) | |
| tree | 350d7e725e4dedfbf41b3ee54d585ed2d609b607 /include | |
| parent | cfd6c38096d75c8b86782683c5f45c415a505b78 (diff) | |
[NETFILTER]: bridge netfilter: consolidate header pushing/pulling code
Consolidate the common push/pull sequences into a few helper functions.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/netfilter_bridge.h | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/include/linux/netfilter_bridge.h b/include/linux/netfilter_bridge.h index 19060030bac..533ee351a27 100644 --- a/include/linux/netfilter_bridge.h +++ b/include/linux/netfilter_bridge.h @@ -55,18 +55,25 @@ static inline int nf_bridge_maybe_copy_header(struct sk_buff *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 { |