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7f8a436e JS |
1 | /* |
2 | * Copyright (c) 2015 Nicira, Inc. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of version 2 of the GNU General Public | |
6 | * License as published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, but | |
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
11 | * General Public License for more details. | |
12 | */ | |
13 | ||
14 | #ifndef OVS_CONNTRACK_H | |
15 | #define OVS_CONNTRACK_H 1 | |
16 | ||
17 | #include "flow.h" | |
18 | ||
19 | struct ovs_conntrack_info; | |
20 | enum ovs_key_attr; | |
21 | ||
f88f69dd | 22 | #if IS_ENABLED(CONFIG_NF_CONNTRACK) |
c2ac6673 JS |
23 | void ovs_ct_init(struct net *); |
24 | void ovs_ct_exit(struct net *); | |
25 | bool ovs_ct_verify(struct net *, enum ovs_key_attr attr); | |
7f8a436e JS |
26 | int ovs_ct_copy_action(struct net *, const struct nlattr *, |
27 | const struct sw_flow_key *, struct sw_flow_actions **, | |
28 | bool log); | |
29 | int ovs_ct_action_to_attr(const struct ovs_conntrack_info *, struct sk_buff *); | |
30 | ||
31 | int ovs_ct_execute(struct net *, struct sk_buff *, struct sw_flow_key *, | |
32 | const struct ovs_conntrack_info *); | |
33 | ||
34 | void ovs_ct_fill_key(const struct sk_buff *skb, struct sw_flow_key *key); | |
35 | int ovs_ct_put_key(const struct sw_flow_key *key, struct sk_buff *skb); | |
36 | void ovs_ct_free_action(const struct nlattr *a); | |
6f225952 | 37 | |
9e384715 JS |
38 | #define CT_SUPPORTED_MASK (OVS_CS_F_NEW | OVS_CS_F_ESTABLISHED | \ |
39 | OVS_CS_F_RELATED | OVS_CS_F_REPLY_DIR | \ | |
40 | OVS_CS_F_INVALID | OVS_CS_F_TRACKED) | |
7f8a436e JS |
41 | #else |
42 | #include <linux/errno.h> | |
43 | ||
c2ac6673 JS |
44 | static inline void ovs_ct_init(struct net *net) { } |
45 | ||
46 | static inline void ovs_ct_exit(struct net *net) { } | |
47 | ||
48 | static inline bool ovs_ct_verify(struct net *net, int attr) | |
7f8a436e JS |
49 | { |
50 | return false; | |
51 | } | |
52 | ||
53 | static inline int ovs_ct_copy_action(struct net *net, const struct nlattr *nla, | |
54 | const struct sw_flow_key *key, | |
55 | struct sw_flow_actions **acts, bool log) | |
56 | { | |
57 | return -ENOTSUPP; | |
58 | } | |
59 | ||
60 | static inline int ovs_ct_action_to_attr(const struct ovs_conntrack_info *info, | |
61 | struct sk_buff *skb) | |
62 | { | |
63 | return -ENOTSUPP; | |
64 | } | |
65 | ||
66 | static inline int ovs_ct_execute(struct net *net, struct sk_buff *skb, | |
67 | struct sw_flow_key *key, | |
68 | const struct ovs_conntrack_info *info) | |
69 | { | |
74c16618 | 70 | kfree_skb(skb); |
7f8a436e JS |
71 | return -ENOTSUPP; |
72 | } | |
73 | ||
74 | static inline void ovs_ct_fill_key(const struct sk_buff *skb, | |
75 | struct sw_flow_key *key) | |
76 | { | |
77 | key->ct.state = 0; | |
78 | key->ct.zone = 0; | |
182e3042 | 79 | key->ct.mark = 0; |
33db4125 | 80 | memset(&key->ct.labels, 0, sizeof(key->ct.labels)); |
7f8a436e JS |
81 | } |
82 | ||
83 | static inline int ovs_ct_put_key(const struct sw_flow_key *key, | |
84 | struct sk_buff *skb) | |
85 | { | |
86 | return 0; | |
87 | } | |
88 | ||
89 | static inline void ovs_ct_free_action(const struct nlattr *a) { } | |
9e384715 JS |
90 | |
91 | #define CT_SUPPORTED_MASK 0 | |
f88f69dd | 92 | #endif /* CONFIG_NF_CONNTRACK */ |
7f8a436e | 93 | #endif /* ovs_conntrack.h */ |