| #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; |
| __u8 l4num; |
| 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 */ |