1 #ifndef _NF_CONNTRACK_TIMEOUT_H
2 #define _NF_CONNTRACK_TIMEOUT_H
4 #include <net/net_namespace.h>
5 #include <linux/netfilter/nf_conntrack_common.h>
6 #include <linux/netfilter/nf_conntrack_tuple_common.h>
7 #include <net/netfilter/nf_conntrack.h>
8 #include <net/netfilter/nf_conntrack_extend.h>
10 #define CTNL_TIMEOUT_NAME_MAX 32
13 struct list_head head
;
14 struct rcu_head rcu_head
;
16 char name
[CTNL_TIMEOUT_NAME_MAX
];
18 struct nf_conntrack_l4proto
*l4proto
;
22 struct nf_conn_timeout
{
23 struct ctnl_timeout __rcu
*timeout
;
26 static inline unsigned int *
27 nf_ct_timeout_data(struct nf_conn_timeout
*t
)
29 struct ctnl_timeout
*timeout
;
31 timeout
= rcu_dereference(t
->timeout
);
35 return (unsigned int *)timeout
->data
;
39 struct nf_conn_timeout
*nf_ct_timeout_find(const struct nf_conn
*ct
)
41 #ifdef CONFIG_NF_CONNTRACK_TIMEOUT
42 return nf_ct_ext_find(ct
, NF_CT_EXT_TIMEOUT
);
49 struct nf_conn_timeout
*nf_ct_timeout_ext_add(struct nf_conn
*ct
,
50 struct ctnl_timeout
*timeout
,
53 #ifdef CONFIG_NF_CONNTRACK_TIMEOUT
54 struct nf_conn_timeout
*timeout_ext
;
56 timeout_ext
= nf_ct_ext_add(ct
, NF_CT_EXT_TIMEOUT
, gfp
);
57 if (timeout_ext
== NULL
)
60 rcu_assign_pointer(timeout_ext
->timeout
, timeout
);
68 static inline unsigned int *
69 nf_ct_timeout_lookup(struct net
*net
, struct nf_conn
*ct
,
70 struct nf_conntrack_l4proto
*l4proto
)
72 #ifdef CONFIG_NF_CONNTRACK_TIMEOUT
73 struct nf_conn_timeout
*timeout_ext
;
74 unsigned int *timeouts
;
76 timeout_ext
= nf_ct_timeout_find(ct
);
78 timeouts
= nf_ct_timeout_data(timeout_ext
);
79 if (unlikely(!timeouts
))
80 timeouts
= l4proto
->get_timeouts(net
);
82 timeouts
= l4proto
->get_timeouts(net
);
87 return l4proto
->get_timeouts(net
);
91 #ifdef CONFIG_NF_CONNTRACK_TIMEOUT
92 int nf_conntrack_timeout_init(void);
93 void nf_conntrack_timeout_fini(void);
95 static inline int nf_conntrack_timeout_init(void)
100 static inline void nf_conntrack_timeout_fini(void)
104 #endif /* CONFIG_NF_CONNTRACK_TIMEOUT */
106 #ifdef CONFIG_NF_CONNTRACK_TIMEOUT
107 extern struct ctnl_timeout
*(*nf_ct_timeout_find_get_hook
)(struct net
*net
, const char *name
);
108 extern void (*nf_ct_timeout_put_hook
)(struct ctnl_timeout
*timeout
);
111 #endif /* _NF_CONNTRACK_TIMEOUT_H */