tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
19struct ovs_conntrack_info;
20enum ovs_key_attr;
21
22#if IS_ENABLED(CONFIG_NF_CONNTRACK)
23void ovs_ct_init(struct net *);
24void ovs_ct_exit(struct net *);
25bool ovs_ct_verify(struct net *, enum ovs_key_attr attr);
26int ovs_ct_copy_action(struct net *, const struct nlattr *,
27 const struct sw_flow_key *, struct sw_flow_actions **,
28 bool log);
29int ovs_ct_action_to_attr(const struct ovs_conntrack_info *, struct sk_buff *);
30
31int ovs_ct_execute(struct net *, struct sk_buff *, struct sw_flow_key *,
32 const struct ovs_conntrack_info *);
33
34void ovs_ct_fill_key(const struct sk_buff *skb, struct sw_flow_key *key);
35int ovs_ct_put_key(const struct sw_flow_key *key, struct sk_buff *skb);
36void ovs_ct_free_action(const struct nlattr *a);
37
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)
41#else
42#include <linux/errno.h>
43
44static inline void ovs_ct_init(struct net *net) { }
45
46static inline void ovs_ct_exit(struct net *net) { }
47
48static inline bool ovs_ct_verify(struct net *net, int attr)
49{
50 return false;
51}
52
53static 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
60static inline int ovs_ct_action_to_attr(const struct ovs_conntrack_info *info,
61 struct sk_buff *skb)
62{
63 return -ENOTSUPP;
64}
65
66static 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{
70 kfree_skb(skb);
71 return -ENOTSUPP;
72}
73
74static 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;
79 key->ct.mark = 0;
80 memset(&key->ct.labels, 0, sizeof(key->ct.labels));
81}
82
83static inline int ovs_ct_put_key(const struct sw_flow_key *key,
84 struct sk_buff *skb)
85{
86 return 0;
87}
88
89static inline void ovs_ct_free_action(const struct nlattr *a) { }
90
91#define CT_SUPPORTED_MASK 0
92#endif /* CONFIG_NF_CONNTRACK */
93#endif /* ovs_conntrack.h */