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Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
[mirror_ubuntu-hirsute-kernel.git] / net / openvswitch / conntrack.h
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5b497af4 1/* SPDX-License-Identifier: GPL-2.0-only */
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2/*
3 * Copyright (c) 2015 Nicira, Inc.
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4 */
5
6#ifndef OVS_CONNTRACK_H
7#define OVS_CONNTRACK_H 1
8
9#include "flow.h"
10
11struct ovs_conntrack_info;
11efd5cb 12struct ovs_ct_limit_info;
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13enum ovs_key_attr;
14
f88f69dd 15#if IS_ENABLED(CONFIG_NF_CONNTRACK)
11efd5cb 16int ovs_ct_init(struct net *);
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17void ovs_ct_exit(struct net *);
18bool ovs_ct_verify(struct net *, enum ovs_key_attr attr);
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19int ovs_ct_copy_action(struct net *, const struct nlattr *,
20 const struct sw_flow_key *, struct sw_flow_actions **,
21 bool log);
22int ovs_ct_action_to_attr(const struct ovs_conntrack_info *, struct sk_buff *);
23
24int ovs_ct_execute(struct net *, struct sk_buff *, struct sw_flow_key *,
25 const struct ovs_conntrack_info *);
b8226962 26int ovs_ct_clear(struct sk_buff *skb, struct sw_flow_key *key);
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27
28void ovs_ct_fill_key(const struct sk_buff *skb, struct sw_flow_key *key);
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29int ovs_ct_put_key(const struct sw_flow_key *swkey,
30 const struct sw_flow_key *output, struct sk_buff *skb);
7f8a436e 31void ovs_ct_free_action(const struct nlattr *a);
6f225952 32
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33#define CT_SUPPORTED_MASK (OVS_CS_F_NEW | OVS_CS_F_ESTABLISHED | \
34 OVS_CS_F_RELATED | OVS_CS_F_REPLY_DIR | \
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35 OVS_CS_F_INVALID | OVS_CS_F_TRACKED | \
36 OVS_CS_F_SRC_NAT | OVS_CS_F_DST_NAT)
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37#else
38#include <linux/errno.h>
39
11efd5cb 40static inline int ovs_ct_init(struct net *net) { return 0; }
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41
42static inline void ovs_ct_exit(struct net *net) { }
43
44static inline bool ovs_ct_verify(struct net *net, int attr)
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45{
46 return false;
47}
48
49static inline int ovs_ct_copy_action(struct net *net, const struct nlattr *nla,
50 const struct sw_flow_key *key,
51 struct sw_flow_actions **acts, bool log)
52{
53 return -ENOTSUPP;
54}
55
56static inline int ovs_ct_action_to_attr(const struct ovs_conntrack_info *info,
57 struct sk_buff *skb)
58{
59 return -ENOTSUPP;
60}
61
62static inline int ovs_ct_execute(struct net *net, struct sk_buff *skb,
63 struct sw_flow_key *key,
64 const struct ovs_conntrack_info *info)
65{
74c16618 66 kfree_skb(skb);
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67 return -ENOTSUPP;
68}
69
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70static inline int ovs_ct_clear(struct sk_buff *skb,
71 struct sw_flow_key *key)
72{
73 return -ENOTSUPP;
74}
75
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76static inline void ovs_ct_fill_key(const struct sk_buff *skb,
77 struct sw_flow_key *key)
78{
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79 key->ct_state = 0;
80 key->ct_zone = 0;
182e3042 81 key->ct.mark = 0;
33db4125 82 memset(&key->ct.labels, 0, sizeof(key->ct.labels));
316d4d78 83 /* Clear 'ct_orig_proto' to mark the non-existence of original
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84 * direction key fields.
85 */
316d4d78 86 key->ct_orig_proto = 0;
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87}
88
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89static inline int ovs_ct_put_key(const struct sw_flow_key *swkey,
90 const struct sw_flow_key *output,
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91 struct sk_buff *skb)
92{
93 return 0;
94}
95
96static inline void ovs_ct_free_action(const struct nlattr *a) { }
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97
98#define CT_SUPPORTED_MASK 0
f88f69dd 99#endif /* CONFIG_NF_CONNTRACK */
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100
101#if IS_ENABLED(CONFIG_NETFILTER_CONNCOUNT)
102extern struct genl_family dp_ct_limit_genl_family;
103#endif
7f8a436e 104#endif /* ovs_conntrack.h */