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#ifndef _NF_CONNTRACK_TIMEOUT_H
#define _NF_CONNTRACK_TIMEOUT_H
#include <net/net_namespace.h>
#include <linux/netfilter/nf_conntrack_common.h>
#include <linux/netfilter/nf_conntrack_tuple_common.h>
#include <net/netfilter/nf_conntrack.h>
#include <net/netfilter/nf_conntrack_extend.h>
#define CTNL_TIMEOUT_NAME_MAX 32
struct ctnl_timeout {
struct list_head head;
struct rcu_head rcu_head;
atomic_t refcnt;
char name[CTNL_TIMEOUT_NAME_MAX];
__u16 l3num;
struct nf_conntrack_l4proto *l4proto;
char data[0];
};
struct nf_conn_timeout {
struct ctnl_timeout *timeout;
};
#define NF_CT_TIMEOUT_EXT_DATA(__t) (unsigned int *) &((__t)->timeout->data)
static inline
struct nf_conn_timeout *nf_ct_timeout_find(const struct nf_conn *ct)
{
#ifdef CONFIG_NF_CONNTRACK_TIMEOUT
return nf_ct_ext_find(ct, NF_CT_EXT_TIMEOUT);
#else
return NULL;
#endif
}
static inline
struct nf_conn_timeout *nf_ct_timeout_ext_add(struct nf_conn *ct,
struct ctnl_timeout *timeout,
gfp_t gfp)
{
#ifdef CONFIG_NF_CONNTRACK_TIMEOUT
struct nf_conn_timeout *timeout_ext;
timeout_ext = nf_ct_ext_add(ct, NF_CT_EXT_TIMEOUT, gfp);
if (timeout_ext == NULL)
return NULL;
timeout_ext->timeout = timeout;
return timeout_ext;
#else
return NULL;
#endif
};
#ifdef CONFIG_NF_CONNTRACK_TIMEOUT
extern int nf_conntrack_timeout_init(struct net *net);
extern void nf_conntrack_timeout_fini(struct net *net);
#else
static inline int nf_conntrack_timeout_init(struct net *net)
{
return 0;
}
static inline void nf_conntrack_timeout_fini(struct net *net)
{
return;
}
#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */
#ifdef CONFIG_NF_CONNTRACK_TIMEOUT
extern struct ctnl_timeout *(*nf_ct_timeout_find_get_hook)(const char *name);
extern void (*nf_ct_timeout_put_hook)(struct ctnl_timeout *timeout);
#endif
#endif /* _NF_CONNTRACK_TIMEOUT_H */
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