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
17 #include <linux/version.h>
20 struct ovs_conntrack_info;
23 #if IS_ENABLED(CONFIG_NF_CONNTRACK)
24 void ovs_ct_init(struct net *);
25 void ovs_ct_exit(struct net *);
26 bool ovs_ct_verify(struct net *, enum ovs_key_attr attr);
27 int ovs_ct_copy_action(struct net *, const struct nlattr *,
28 const struct sw_flow_key *, struct sw_flow_actions **,
30 int ovs_ct_action_to_attr(const struct ovs_conntrack_info *, struct sk_buff *);
32 int ovs_ct_execute(struct net *, struct sk_buff *, struct sw_flow_key *,
33 const struct ovs_conntrack_info *);
35 void ovs_ct_fill_key(const struct sk_buff *skb, struct sw_flow_key *key);
36 int ovs_ct_put_key(const struct sw_flow_key *key, struct sk_buff *skb);
37 void ovs_ct_free_action(const struct nlattr *a);
39 #define CT_SUPPORTED_MASK (OVS_CS_F_NEW | OVS_CS_F_ESTABLISHED | \
40 OVS_CS_F_RELATED | OVS_CS_F_REPLY_DIR | \
41 OVS_CS_F_INVALID | OVS_CS_F_TRACKED | \
42 OVS_CS_F_SRC_NAT | OVS_CS_F_DST_NAT)
44 #include <linux/errno.h>
46 static inline void ovs_ct_init(struct net *net) { }
48 static inline void ovs_ct_exit(struct net *net) { }
50 static inline bool ovs_ct_verify(struct net *net, int attr)
55 static inline int ovs_ct_copy_action(struct net *net, const struct nlattr *nla,
56 const struct sw_flow_key *key,
57 struct sw_flow_actions **acts, bool log)
62 static inline int ovs_ct_action_to_attr(const struct ovs_conntrack_info *info,
68 static inline int ovs_ct_execute(struct net *net, struct sk_buff *skb,
69 struct sw_flow_key *key,
70 const struct ovs_conntrack_info *info)
76 static inline void ovs_ct_fill_key(const struct sk_buff *skb,
77 struct sw_flow_key *key)
82 memset(&key->ct.labels, 0, sizeof(key->ct.labels));
85 static inline int ovs_ct_put_key(const struct sw_flow_key *key,
91 static inline void ovs_ct_free_action(const struct nlattr *a) { }
93 #define CT_SUPPORTED_MASK 0
95 #endif /* ovs_conntrack.h */