Commit | Line | Data |
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5b497af4 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
7f8a436e JS |
2 | /* |
3 | * Copyright (c) 2015 Nicira, Inc. | |
7f8a436e JS |
4 | */ |
5 | ||
6 | #ifndef OVS_CONNTRACK_H | |
7 | #define OVS_CONNTRACK_H 1 | |
8 | ||
9 | #include "flow.h" | |
10 | ||
11 | struct ovs_conntrack_info; | |
11efd5cb | 12 | struct ovs_ct_limit_info; |
7f8a436e JS |
13 | enum ovs_key_attr; |
14 | ||
f88f69dd | 15 | #if IS_ENABLED(CONFIG_NF_CONNTRACK) |
11efd5cb | 16 | int ovs_ct_init(struct net *); |
c2ac6673 JS |
17 | void ovs_ct_exit(struct net *); |
18 | bool ovs_ct_verify(struct net *, enum ovs_key_attr attr); | |
7f8a436e JS |
19 | int ovs_ct_copy_action(struct net *, const struct nlattr *, |
20 | const struct sw_flow_key *, struct sw_flow_actions **, | |
21 | bool log); | |
22 | int ovs_ct_action_to_attr(const struct ovs_conntrack_info *, struct sk_buff *); | |
23 | ||
24 | int ovs_ct_execute(struct net *, struct sk_buff *, struct sw_flow_key *, | |
25 | const struct ovs_conntrack_info *); | |
b8226962 | 26 | int ovs_ct_clear(struct sk_buff *skb, struct sw_flow_key *key); |
7f8a436e | 27 | |
d29334c1 | 28 | void ovs_ct_fill_key(const struct sk_buff *skb, struct sw_flow_key *key, |
29 | bool post_ct); | |
9dd7f890 JR |
30 | int ovs_ct_put_key(const struct sw_flow_key *swkey, |
31 | const struct sw_flow_key *output, struct sk_buff *skb); | |
7f8a436e | 32 | void ovs_ct_free_action(const struct nlattr *a); |
6f225952 | 33 | |
9e384715 JS |
34 | #define CT_SUPPORTED_MASK (OVS_CS_F_NEW | OVS_CS_F_ESTABLISHED | \ |
35 | OVS_CS_F_RELATED | OVS_CS_F_REPLY_DIR | \ | |
05752523 JR |
36 | OVS_CS_F_INVALID | OVS_CS_F_TRACKED | \ |
37 | OVS_CS_F_SRC_NAT | OVS_CS_F_DST_NAT) | |
7f8a436e JS |
38 | #else |
39 | #include <linux/errno.h> | |
40 | ||
11efd5cb | 41 | static inline int ovs_ct_init(struct net *net) { return 0; } |
c2ac6673 JS |
42 | |
43 | static inline void ovs_ct_exit(struct net *net) { } | |
44 | ||
45 | static inline bool ovs_ct_verify(struct net *net, int attr) | |
7f8a436e JS |
46 | { |
47 | return false; | |
48 | } | |
49 | ||
50 | static inline int ovs_ct_copy_action(struct net *net, const struct nlattr *nla, | |
51 | const struct sw_flow_key *key, | |
52 | struct sw_flow_actions **acts, bool log) | |
53 | { | |
54 | return -ENOTSUPP; | |
55 | } | |
56 | ||
57 | static inline int ovs_ct_action_to_attr(const struct ovs_conntrack_info *info, | |
58 | struct sk_buff *skb) | |
59 | { | |
60 | return -ENOTSUPP; | |
61 | } | |
62 | ||
63 | static inline int ovs_ct_execute(struct net *net, struct sk_buff *skb, | |
64 | struct sw_flow_key *key, | |
65 | const struct ovs_conntrack_info *info) | |
66 | { | |
74c16618 | 67 | kfree_skb(skb); |
7f8a436e JS |
68 | return -ENOTSUPP; |
69 | } | |
70 | ||
b8226962 EG |
71 | static inline int ovs_ct_clear(struct sk_buff *skb, |
72 | struct sw_flow_key *key) | |
73 | { | |
74 | return -ENOTSUPP; | |
75 | } | |
76 | ||
7f8a436e | 77 | static inline void ovs_ct_fill_key(const struct sk_buff *skb, |
d29334c1 | 78 | struct sw_flow_key *key, |
79 | bool post_ct) | |
7f8a436e | 80 | { |
316d4d78 JR |
81 | key->ct_state = 0; |
82 | key->ct_zone = 0; | |
182e3042 | 83 | key->ct.mark = 0; |
33db4125 | 84 | memset(&key->ct.labels, 0, sizeof(key->ct.labels)); |
316d4d78 | 85 | /* Clear 'ct_orig_proto' to mark the non-existence of original |
9dd7f890 JR |
86 | * direction key fields. |
87 | */ | |
316d4d78 | 88 | key->ct_orig_proto = 0; |
7f8a436e JS |
89 | } |
90 | ||
9dd7f890 JR |
91 | static inline int ovs_ct_put_key(const struct sw_flow_key *swkey, |
92 | const struct sw_flow_key *output, | |
7f8a436e JS |
93 | struct sk_buff *skb) |
94 | { | |
95 | return 0; | |
96 | } | |
97 | ||
98 | static inline void ovs_ct_free_action(const struct nlattr *a) { } | |
9e384715 JS |
99 | |
100 | #define CT_SUPPORTED_MASK 0 | |
f88f69dd | 101 | #endif /* CONFIG_NF_CONNTRACK */ |
11efd5cb YHW |
102 | |
103 | #if IS_ENABLED(CONFIG_NETFILTER_CONNCOUNT) | |
104 | extern struct genl_family dp_ct_limit_genl_family; | |
105 | #endif | |
7f8a436e | 106 | #endif /* ovs_conntrack.h */ |