1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (c) 2015 Nicira, Inc.
6 #ifndef OVS_CONNTRACK_H
7 #define OVS_CONNTRACK_H 1
11 struct ovs_conntrack_info;
12 struct ovs_ct_limit_info;
15 #if IS_ENABLED(CONFIG_NF_CONNTRACK)
16 int ovs_ct_init(struct net *);
17 void ovs_ct_exit(struct net *);
18 bool ovs_ct_verify(struct net *, enum ovs_key_attr attr);
19 int ovs_ct_copy_action(struct net *, const struct nlattr *,
20 const struct sw_flow_key *, struct sw_flow_actions **,
22 int ovs_ct_action_to_attr(const struct ovs_conntrack_info *, struct sk_buff *);
24 int ovs_ct_execute(struct net *, struct sk_buff *, struct sw_flow_key *,
25 const struct ovs_conntrack_info *);
26 int ovs_ct_clear(struct sk_buff *skb, struct sw_flow_key *key);
28 void ovs_ct_fill_key(const struct sk_buff *skb, struct sw_flow_key *key);
29 int ovs_ct_put_key(const struct sw_flow_key *swkey,
30 const struct sw_flow_key *output, struct sk_buff *skb);
31 void ovs_ct_free_action(const struct nlattr *a);
33 #define CT_SUPPORTED_MASK (OVS_CS_F_NEW | OVS_CS_F_ESTABLISHED | \
34 OVS_CS_F_RELATED | OVS_CS_F_REPLY_DIR | \
35 OVS_CS_F_INVALID | OVS_CS_F_TRACKED | \
36 OVS_CS_F_SRC_NAT | OVS_CS_F_DST_NAT)
38 #include <linux/errno.h>
40 static inline int ovs_ct_init(struct net *net) { return 0; }
42 static inline void ovs_ct_exit(struct net *net) { }
44 static inline bool ovs_ct_verify(struct net *net, int attr)
49 static 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)
56 static inline int ovs_ct_action_to_attr(const struct ovs_conntrack_info *info,
62 static 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)
70 static inline int ovs_ct_clear(struct sk_buff *skb,
71 struct sw_flow_key *key)
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));
83 /* Clear 'ct_orig_proto' to mark the non-existence of original
84 * direction key fields.
86 key->ct_orig_proto = 0;
89 static inline int ovs_ct_put_key(const struct sw_flow_key *swkey,
90 const struct sw_flow_key *output,
96 static inline void ovs_ct_free_action(const struct nlattr *a) { }
98 #define CT_SUPPORTED_MASK 0
99 #endif /* CONFIG_NF_CONNTRACK */
101 #if IS_ENABLED(CONFIG_NETFILTER_CONNCOUNT)
102 extern struct genl_family dp_ct_limit_genl_family;
104 #endif /* ovs_conntrack.h */