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Commit | Line | Data |
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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
4b7fd5d9 PNA |
2 | #ifndef _BR_NETFILTER_H_ |
3 | #define _BR_NETFILTER_H_ | |
4 | ||
230ac490 PNA |
5 | #include "../../../net/bridge/br_private.h" |
6 | ||
7 | static inline struct nf_bridge_info *nf_bridge_alloc(struct sk_buff *skb) | |
8 | { | |
9 | skb->nf_bridge = kzalloc(sizeof(struct nf_bridge_info), GFP_ATOMIC); | |
10 | ||
11 | if (likely(skb->nf_bridge)) | |
53869ceb | 12 | refcount_set(&(skb->nf_bridge->use), 1); |
230ac490 PNA |
13 | |
14 | return skb->nf_bridge; | |
15 | } | |
16 | ||
17 | void nf_bridge_update_protocol(struct sk_buff *skb); | |
18 | ||
c5136b15 FW |
19 | int br_nf_hook_thresh(unsigned int hook, struct net *net, struct sock *sk, |
20 | struct sk_buff *skb, struct net_device *indev, | |
21 | struct net_device *outdev, | |
22 | int (*okfn)(struct net *, struct sock *, | |
23 | struct sk_buff *)); | |
24 | ||
230ac490 PNA |
25 | static inline struct nf_bridge_info * |
26 | nf_bridge_info_get(const struct sk_buff *skb) | |
27 | { | |
28 | return skb->nf_bridge; | |
29 | } | |
30 | ||
31 | unsigned int nf_bridge_encap_header_len(const struct sk_buff *skb); | |
32 | ||
33 | static inline void nf_bridge_push_encap_header(struct sk_buff *skb) | |
34 | { | |
35 | unsigned int len = nf_bridge_encap_header_len(skb); | |
36 | ||
37 | skb_push(skb, len); | |
38 | skb->network_header -= len; | |
39 | } | |
40 | ||
0c4b51f0 | 41 | int br_nf_pre_routing_finish_bridge(struct net *net, struct sock *sk, struct sk_buff *skb); |
230ac490 PNA |
42 | |
43 | static inline struct rtable *bridge_parent_rtable(const struct net_device *dev) | |
44 | { | |
45 | struct net_bridge_port *port; | |
46 | ||
47 | port = br_port_get_rcu(dev); | |
48 | return port ? &port->br->fake_rtable : NULL; | |
49 | } | |
50 | ||
51 | struct net_device *setup_pre_routing(struct sk_buff *skb); | |
4b7fd5d9 PNA |
52 | void br_netfilter_enable(void); |
53 | ||
230ac490 | 54 | #if IS_ENABLED(CONFIG_IPV6) |
c1444c63 | 55 | int br_validate_ipv6(struct net *net, struct sk_buff *skb); |
06198b34 | 56 | unsigned int br_nf_pre_routing_ipv6(void *priv, |
230ac490 PNA |
57 | struct sk_buff *skb, |
58 | const struct nf_hook_state *state); | |
59 | #else | |
c1444c63 | 60 | static inline int br_validate_ipv6(struct net *net, struct sk_buff *skb) |
230ac490 PNA |
61 | { |
62 | return -1; | |
63 | } | |
64 | ||
65 | static inline unsigned int | |
66 | br_nf_pre_routing_ipv6(const struct nf_hook_ops *ops, struct sk_buff *skb, | |
67 | const struct nf_hook_state *state) | |
68 | { | |
18e1db67 | 69 | return NF_ACCEPT; |
230ac490 PNA |
70 | } |
71 | #endif | |
72 | ||
4b7fd5d9 | 73 | #endif /* _BR_NETFILTER_H_ */ |