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
;
21 struct ovs_ct_limit_info
;
24 #if IS_ENABLED(CONFIG_NF_CONNTRACK)
25 int ovs_ct_init(struct net
*);
26 void ovs_ct_exit(struct net
*);
27 bool ovs_ct_verify(struct net
*, enum ovs_key_attr attr
);
28 int ovs_ct_copy_action(struct net
*, const struct nlattr
*,
29 const struct sw_flow_key
*, struct sw_flow_actions
**,
31 int ovs_ct_action_to_attr(const struct ovs_conntrack_info
*, struct sk_buff
*);
33 int ovs_ct_execute(struct net
*, struct sk_buff
*, struct sw_flow_key
*,
34 const struct ovs_conntrack_info
*);
35 int ovs_ct_clear(struct sk_buff
*skb
, struct sw_flow_key
*key
);
37 void ovs_ct_fill_key(const struct sk_buff
*skb
, struct sw_flow_key
*key
);
38 int ovs_ct_put_key(const struct sw_flow_key
*swkey
,
39 const struct sw_flow_key
*output
, struct sk_buff
*skb
);
40 void ovs_ct_free_action(const struct nlattr
*a
);
42 #define CT_SUPPORTED_MASK (OVS_CS_F_NEW | OVS_CS_F_ESTABLISHED | \
43 OVS_CS_F_RELATED | OVS_CS_F_REPLY_DIR | \
44 OVS_CS_F_INVALID | OVS_CS_F_TRACKED | \
45 OVS_CS_F_SRC_NAT | OVS_CS_F_DST_NAT)
47 #include <linux/errno.h>
49 static inline int ovs_ct_init(struct net
*net
) { return 0; }
51 static inline void ovs_ct_exit(struct net
*net
) { }
53 static inline bool ovs_ct_verify(struct net
*net
, int attr
)
58 static inline int ovs_ct_copy_action(struct net
*net
, const struct nlattr
*nla
,
59 const struct sw_flow_key
*key
,
60 struct sw_flow_actions
**acts
, bool log
)
65 static inline int ovs_ct_action_to_attr(const struct ovs_conntrack_info
*info
,
71 static inline int ovs_ct_execute(struct net
*net
, struct sk_buff
*skb
,
72 struct sw_flow_key
*key
,
73 const struct ovs_conntrack_info
*info
)
79 static inline int ovs_ct_clear(struct sk_buff
*skb
,
80 struct sw_flow_key
*key
)
85 static inline void ovs_ct_fill_key(const struct sk_buff
*skb
,
86 struct sw_flow_key
*key
)
91 memset(&key
->ct
.labels
, 0, sizeof(key
->ct
.labels
));
92 /* Clear 'ct_orig_proto' to mark the non-existence of original
93 * direction key fields.
95 key
->ct_orig_proto
= 0;
98 static inline int ovs_ct_put_key(const struct sw_flow_key
*swkey
,
99 const struct sw_flow_key
*output
,
105 static inline void ovs_ct_free_action(const struct nlattr
*a
) { }
107 #define CT_SUPPORTED_MASK 0
110 #if IS_ENABLED(CONFIG_NETFILTER_CONNCOUNT)
111 extern struct genl_family dp_ct_limit_genl_family
;
113 #endif /* ovs_conntrack.h */