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Commit | Line | Data |
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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
2 | #ifndef __LINUX_BRIDGE_NETFILTER_H |
3 | #define __LINUX_BRIDGE_NETFILTER_H | |
4 | ||
607ca46e | 5 | #include <uapi/linux/netfilter_bridge.h> |
c737b7c4 | 6 | #include <linux/skbuff.h> |
1da177e4 | 7 | |
34666d46 | 8 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
1da177e4 | 9 | |
0c4b51f0 | 10 | int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); |
ea2d9b41 | 11 | |
a881e963 PHP |
12 | static inline void br_drop_fake_rtable(struct sk_buff *skb) |
13 | { | |
14 | struct dst_entry *dst = skb_dst(skb); | |
15 | ||
16 | if (dst && (dst->flags & DST_FAKE_RTABLE)) | |
17 | skb_dst_drop(skb); | |
18 | } | |
19 | ||
c4b0e771 FW |
20 | static inline struct nf_bridge_info * |
21 | nf_bridge_info_get(const struct sk_buff *skb) | |
22 | { | |
de8bda1d | 23 | return skb_ext_find(skb, SKB_EXT_BRIDGE_NF); |
c4b0e771 FW |
24 | } |
25 | ||
26 | static inline bool nf_bridge_info_exists(const struct sk_buff *skb) | |
27 | { | |
de8bda1d | 28 | return skb_ext_exist(skb, SKB_EXT_BRIDGE_NF); |
c4b0e771 FW |
29 | } |
30 | ||
c737b7c4 FW |
31 | static inline int nf_bridge_get_physinif(const struct sk_buff *skb) |
32 | { | |
c4b0e771 | 33 | const struct nf_bridge_info *nf_bridge = nf_bridge_info_get(skb); |
547c4b54 | 34 | |
c4b0e771 | 35 | if (!nf_bridge) |
547c4b54 FW |
36 | return 0; |
37 | ||
547c4b54 | 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 | { | |
c4b0e771 | 43 | const struct nf_bridge_info *nf_bridge = nf_bridge_info_get(skb); |
547c4b54 | 44 | |
c4b0e771 | 45 | if (!nf_bridge) |
547c4b54 FW |
46 | return 0; |
47 | ||
547c4b54 | 48 | return nf_bridge->physoutdev ? nf_bridge->physoutdev->ifindex : 0; |
c737b7c4 FW |
49 | } |
50 | ||
51 | static inline struct net_device * | |
52 | nf_bridge_get_physindev(const struct sk_buff *skb) | |
53 | { | |
c4b0e771 FW |
54 | const struct nf_bridge_info *nf_bridge = nf_bridge_info_get(skb); |
55 | ||
56 | return nf_bridge ? nf_bridge->physindev : NULL; | |
c737b7c4 FW |
57 | } |
58 | ||
59 | static inline struct net_device * | |
60 | nf_bridge_get_physoutdev(const struct sk_buff *skb) | |
61 | { | |
c4b0e771 FW |
62 | const struct nf_bridge_info *nf_bridge = nf_bridge_info_get(skb); |
63 | ||
64 | return nf_bridge ? nf_bridge->physoutdev : NULL; | |
c737b7c4 | 65 | } |
72b1e5e4 FW |
66 | |
67 | static inline bool nf_bridge_in_prerouting(const struct sk_buff *skb) | |
68 | { | |
c4b0e771 FW |
69 | const struct nf_bridge_info *nf_bridge = nf_bridge_info_get(skb); |
70 | ||
71 | return nf_bridge && nf_bridge->in_prerouting; | |
72b1e5e4 | 72 | } |
07317621 | 73 | #else |
a881e963 | 74 | #define br_drop_fake_rtable(skb) do { } while (0) |
72b1e5e4 FW |
75 | static inline bool nf_bridge_in_prerouting(const struct sk_buff *skb) |
76 | { | |
77 | return false; | |
78 | } | |
1da177e4 LT |
79 | #endif /* CONFIG_BRIDGE_NETFILTER */ |
80 | ||
1da177e4 | 81 | #endif |