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Commit | Line | Data |
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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 | |
0c4b51f0 | 20 | int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); |
ea2d9b41 | 21 | |
a881e963 PHP |
22 | static inline void br_drop_fake_rtable(struct sk_buff *skb) |
23 | { | |
24 | struct dst_entry *dst = skb_dst(skb); | |
25 | ||
26 | if (dst && (dst->flags & DST_FAKE_RTABLE)) | |
27 | skb_dst_drop(skb); | |
28 | } | |
29 | ||
c737b7c4 FW |
30 | static inline int nf_bridge_get_physinif(const struct sk_buff *skb) |
31 | { | |
547c4b54 FW |
32 | struct nf_bridge_info *nf_bridge; |
33 | ||
34 | if (skb->nf_bridge == NULL) | |
35 | return 0; | |
36 | ||
37 | nf_bridge = skb->nf_bridge; | |
38 | return nf_bridge->physindev ? nf_bridge->physindev->ifindex : 0; | |
c737b7c4 FW |
39 | } |
40 | ||
41 | static inline int nf_bridge_get_physoutif(const struct sk_buff *skb) | |
42 | { | |
547c4b54 FW |
43 | struct nf_bridge_info *nf_bridge; |
44 | ||
45 | if (skb->nf_bridge == NULL) | |
46 | return 0; | |
47 | ||
48 | nf_bridge = skb->nf_bridge; | |
49 | return nf_bridge->physoutdev ? nf_bridge->physoutdev->ifindex : 0; | |
c737b7c4 FW |
50 | } |
51 | ||
52 | static inline struct net_device * | |
53 | nf_bridge_get_physindev(const struct sk_buff *skb) | |
54 | { | |
55 | return skb->nf_bridge ? skb->nf_bridge->physindev : NULL; | |
56 | } | |
57 | ||
58 | static inline struct net_device * | |
59 | nf_bridge_get_physoutdev(const struct sk_buff *skb) | |
60 | { | |
61 | return skb->nf_bridge ? skb->nf_bridge->physoutdev : NULL; | |
62 | } | |
72b1e5e4 FW |
63 | |
64 | static inline bool nf_bridge_in_prerouting(const struct sk_buff *skb) | |
65 | { | |
66 | return skb->nf_bridge && skb->nf_bridge->in_prerouting; | |
67 | } | |
07317621 | 68 | #else |
a881e963 | 69 | #define br_drop_fake_rtable(skb) do { } while (0) |
72b1e5e4 FW |
70 | static inline bool nf_bridge_in_prerouting(const struct sk_buff *skb) |
71 | { | |
72 | return false; | |
73 | } | |
1da177e4 LT |
74 | #endif /* CONFIG_BRIDGE_NETFILTER */ |
75 | ||
1da177e4 | 76 | #endif |