2012-02-28 15:36:48 -07:00
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#ifndef _NF_CONNTRACK_TIMEOUT_H
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#define _NF_CONNTRACK_TIMEOUT_H
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#include <net/net_namespace.h>
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#include <linux/netfilter/nf_conntrack_common.h>
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#include <linux/netfilter/nf_conntrack_tuple_common.h>
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#include <net/netfilter/nf_conntrack.h>
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#include <net/netfilter/nf_conntrack_extend.h>
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#define CTNL_TIMEOUT_NAME_MAX 32
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struct ctnl_timeout {
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struct list_head head;
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struct rcu_head rcu_head;
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atomic_t refcnt;
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char name[CTNL_TIMEOUT_NAME_MAX];
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__u16 l3num;
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2012-03-22 16:40:01 -06:00
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struct nf_conntrack_l4proto *l4proto;
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2012-02-28 15:36:48 -07:00
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char data[0];
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};
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struct nf_conn_timeout {
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struct ctnl_timeout *timeout;
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};
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#define NF_CT_TIMEOUT_EXT_DATA(__t) (unsigned int *) &((__t)->timeout->data)
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static inline
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struct nf_conn_timeout *nf_ct_timeout_find(const struct nf_conn *ct)
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{
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#ifdef CONFIG_NF_CONNTRACK_TIMEOUT
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return nf_ct_ext_find(ct, NF_CT_EXT_TIMEOUT);
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#else
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return NULL;
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#endif
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}
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static inline
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struct nf_conn_timeout *nf_ct_timeout_ext_add(struct nf_conn *ct,
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struct ctnl_timeout *timeout,
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gfp_t gfp)
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{
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#ifdef CONFIG_NF_CONNTRACK_TIMEOUT
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struct nf_conn_timeout *timeout_ext;
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timeout_ext = nf_ct_ext_add(ct, NF_CT_EXT_TIMEOUT, gfp);
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if (timeout_ext == NULL)
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return NULL;
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timeout_ext->timeout = timeout;
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return timeout_ext;
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#else
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return NULL;
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#endif
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};
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2012-08-27 18:53:15 -06:00
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static inline unsigned int *
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nf_ct_timeout_lookup(struct net *net, struct nf_conn *ct,
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struct nf_conntrack_l4proto *l4proto)
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{
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#ifdef CONFIG_NF_CONNTRACK_TIMEOUT
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struct nf_conn_timeout *timeout_ext;
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unsigned int *timeouts;
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timeout_ext = nf_ct_timeout_find(ct);
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if (timeout_ext)
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timeouts = NF_CT_TIMEOUT_EXT_DATA(timeout_ext);
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else
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timeouts = l4proto->get_timeouts(net);
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return timeouts;
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#else
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return l4proto->get_timeouts(net);
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#endif
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}
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2012-02-28 15:36:48 -07:00
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#ifdef CONFIG_NF_CONNTRACK_TIMEOUT
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2013-09-23 12:37:48 -06:00
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int nf_conntrack_timeout_init(void);
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void nf_conntrack_timeout_fini(void);
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2012-02-28 15:36:48 -07:00
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#else
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2013-01-21 15:10:29 -07:00
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static inline int nf_conntrack_timeout_init(void)
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2012-02-28 15:36:48 -07:00
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{
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return 0;
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}
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2013-01-21 15:10:29 -07:00
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static inline void nf_conntrack_timeout_fini(void)
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2012-02-28 15:36:48 -07:00
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{
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return;
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}
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#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */
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#ifdef CONFIG_NF_CONNTRACK_TIMEOUT
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extern struct ctnl_timeout *(*nf_ct_timeout_find_get_hook)(const char *name);
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extern void (*nf_ct_timeout_put_hook)(struct ctnl_timeout *timeout);
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#endif
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#endif /* _NF_CONNTRACK_TIMEOUT_H */
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