2 * Copyright (c) 2015 Nicira, Inc.
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.
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.
14 #ifndef OVS_CONNTRACK_H
15 #define OVS_CONNTRACK_H 1
19 struct ovs_conntrack_info;
22 #if IS_ENABLED(CONFIG_NF_CONNTRACK)
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);
26 int ovs_ct_copy_action(struct net *, const struct nlattr *,
27 const struct sw_flow_key *, struct sw_flow_actions **,
29 int ovs_ct_action_to_attr(const struct ovs_conntrack_info *, struct sk_buff *);
31 int ovs_ct_execute(struct net *, struct sk_buff *, struct sw_flow_key *,
32 const struct ovs_conntrack_info *);
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);
38 static inline bool ovs_ct_state_supported(u32 state)
40 return !(state & ~(OVS_CS_F_NEW | OVS_CS_F_ESTABLISHED |
41 OVS_CS_F_RELATED | OVS_CS_F_REPLY_DIR |
42 OVS_CS_F_INVALID | OVS_CS_F_TRACKED));
45 #include <linux/errno.h>
47 static inline void ovs_ct_init(struct net *net) { }
49 static inline void ovs_ct_exit(struct net *net) { }
51 static inline bool ovs_ct_verify(struct net *net, int attr)
56 static inline bool ovs_ct_state_supported(u32 state)
61 static inline int ovs_ct_copy_action(struct net *net, const struct nlattr *nla,
62 const struct sw_flow_key *key,
63 struct sw_flow_actions **acts, bool log)
68 static inline int ovs_ct_action_to_attr(const struct ovs_conntrack_info *info,
74 static inline int ovs_ct_execute(struct net *net, struct sk_buff *skb,
75 struct sw_flow_key *key,
76 const struct ovs_conntrack_info *info)
81 static inline void ovs_ct_fill_key(const struct sk_buff *skb,
82 struct sw_flow_key *key)
87 memset(&key->ct.labels, 0, sizeof(key->ct.labels));
90 static inline int ovs_ct_put_key(const struct sw_flow_key *key,
96 static inline void ovs_ct_free_action(const struct nlattr *a) { }
97 #endif /* CONFIG_NF_CONNTRACK */
98 #endif /* ovs_conntrack.h */