projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #ifndef __LINUX_BRIDGE_NETFILTER_H |
| 2 | #define __LINUX_BRIDGE_NETFILTER_H | |
| 3 | ||
| 607ca46e | 4 | #include <uapi/linux/netfilter_bridge.h> |
| c737b7c4 | 5 | #include <linux/skbuff.h> |
| 1da177e4 LT |
6 | |
| 7 | enum nf_br_hook_priorities { | |
| 8 | NF_BR_PRI_FIRST = INT_MIN, | |
| 9 | NF_BR_PRI_NAT_DST_BRIDGED = -300, | |
| 10 | NF_BR_PRI_FILTER_BRIDGED = -200, | |
| 11 | NF_BR_PRI_BRNF = 0, | |
| 12 | NF_BR_PRI_NAT_DST_OTHER = 100, | |
| 13 | NF_BR_PRI_FILTER_OTHER = 200, | |
| 14 | NF_BR_PRI_NAT_SRC = 300, | |
| 15 | NF_BR_PRI_LAST = INT_MAX, | |
| 16 | }; | |
| 17 | ||
| 34666d46 | 18 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
| 1da177e4 | 19 | |
| 1da177e4 | 20 | #define BRNF_BRIDGED_DNAT 0x02 |
| ea2d9b41 | 21 | #define BRNF_NF_BRIDGE_PREROUTING 0x08 |
| 1da177e4 | 22 | |
| 6c79bf0f BDS |
23 | static inline unsigned int nf_bridge_mtu_reduction(const struct sk_buff *skb) |
| 24 | { | |
| 3eaf4025 | 25 | if (skb->nf_bridge->orig_proto == BRNF_PROTO_PPPOE) |
| 6c79bf0f BDS |
26 | return PPPOE_SES_HLEN; |
| 27 | return 0; | |
| 28 | } | |
| 29 | ||
| 7026b1dd | 30 | int br_handle_frame_finish(struct sock *sk, struct sk_buff *skb); |
| ea2d9b41 | 31 | |
| a881e963 PHP |
32 | static inline void br_drop_fake_rtable(struct sk_buff *skb) |
| 33 | { | |
| 34 | struct dst_entry *dst = skb_dst(skb); | |
| 35 | ||
| 36 | if (dst && (dst->flags & DST_FAKE_RTABLE)) | |
| 37 | skb_dst_drop(skb); | |
| 38 | } | |
| 39 | ||
| c737b7c4 FW |
40 | static inline int nf_bridge_get_physinif(const struct sk_buff *skb) |
| 41 | { | |
| 547c4b54 FW |
42 | struct nf_bridge_info *nf_bridge; |
| 43 | ||
| 44 | if (skb->nf_bridge == NULL) | |
| 45 | return 0; | |
| 46 | ||
| 47 | nf_bridge = skb->nf_bridge; | |
| 48 | return nf_bridge->physindev ? nf_bridge->physindev->ifindex : 0; | |
| c737b7c4 FW |
49 | } |
| 50 | ||
| 51 | static inline int nf_bridge_get_physoutif(const struct sk_buff *skb) | |
| 52 | { | |
| 547c4b54 FW |
53 | struct nf_bridge_info *nf_bridge; |
| 54 | ||
| 55 | if (skb->nf_bridge == NULL) | |
| 56 | return 0; | |
| 57 | ||
| 58 | nf_bridge = skb->nf_bridge; | |
| 59 | return nf_bridge->physoutdev ? nf_bridge->physoutdev->ifindex : 0; | |
| c737b7c4 FW |
60 | } |
| 61 | ||
| 62 | static inline struct net_device * | |
| 63 | nf_bridge_get_physindev(const struct sk_buff *skb) | |
| 64 | { | |
| 65 | return skb->nf_bridge ? skb->nf_bridge->physindev : NULL; | |
| 66 | } | |
| 67 | ||
| 68 | static inline struct net_device * | |
| 69 | nf_bridge_get_physoutdev(const struct sk_buff *skb) | |
| 70 | { | |
| 71 | return skb->nf_bridge ? skb->nf_bridge->physoutdev : NULL; | |
| 72 | } | |
| 07317621 | 73 | #else |
| a881e963 | 74 | #define br_drop_fake_rtable(skb) do { } while (0) |
| 1da177e4 LT |
75 | #endif /* CONFIG_BRIDGE_NETFILTER */ |
| 76 | ||
| 1da177e4 | 77 | #endif |