[net-next-2.6.git] / include / net / act_api.h

#ifndef __NET_ACT_API_H
#define __NET_ACT_API_H

/*
 * Public police action API for classifiers/qdiscs
 */

#include <net/sch_generic.h>
#include <net/pkt_sched.h>

struct tcf_common {
	struct tcf_common		*tcfc_next;
	u32				tcfc_index;
	int				tcfc_refcnt;
	int				tcfc_bindcnt;
	u32				tcfc_capab;
	int				tcfc_action;
	struct tcf_t			tcfc_tm;
	struct gnet_stats_basic_packed	tcfc_bstats;
	struct gnet_stats_queue		tcfc_qstats;
	struct gnet_stats_rate_est	tcfc_rate_est;
	spinlock_t			tcfc_lock;
	struct rcu_head			tcfc_rcu;
};
#define tcf_next	common.tcfc_next
#define tcf_index	common.tcfc_index
#define tcf_refcnt	common.tcfc_refcnt
#define tcf_bindcnt	common.tcfc_bindcnt
#define tcf_capab	common.tcfc_capab
#define tcf_action	common.tcfc_action
#define tcf_tm		common.tcfc_tm
#define tcf_bstats	common.tcfc_bstats
#define tcf_qstats	common.tcfc_qstats
#define tcf_rate_est	common.tcfc_rate_est
#define tcf_lock	common.tcfc_lock
#define tcf_rcu		common.tcfc_rcu

struct tcf_police {
	struct tcf_common	common;
	int			tcfp_result;
	u32			tcfp_ewma_rate;
	u32			tcfp_burst;
	u32			tcfp_mtu;
	u32			tcfp_toks;
	u32			tcfp_ptoks;
	psched_time_t		tcfp_t_c;
	struct qdisc_rate_table	*tcfp_R_tab;
	struct qdisc_rate_table	*tcfp_P_tab;
};
#define to_police(pc)	\
	container_of(pc, struct tcf_police, common)

struct tcf_hashinfo {
	struct tcf_common	**htab;
	unsigned int		hmask;
	rwlock_t		*lock;
};

static inline unsigned int tcf_hash(u32 index, unsigned int hmask)
{
	return index & hmask;
}

#ifdef CONFIG_NET_CLS_ACT

#define ACT_P_CREATED 1
#define ACT_P_DELETED 1

struct tcf_act_hdr {
	struct tcf_common	common;
};

struct tc_action {
	void			*priv;
	struct tc_action_ops	*ops;
	__u32			type; /* for backward compat(TCA_OLD_COMPAT) */
	__u32			order;
	struct tc_action	*next;
};

#define TCA_CAP_NONE 0
struct tc_action_ops {
	struct tc_action_ops *next;
	struct tcf_hashinfo *hinfo;
	char    kind[IFNAMSIZ];
	__u32   type; /* TBD to match kind */
	__u32 	capab;  /* capabilities includes 4 bit version */
	struct module		*owner;
	int     (*act)(struct sk_buff *, struct tc_action *, struct tcf_result *);
	int     (*get_stats)(struct sk_buff *, struct tc_action *);
	int     (*dump)(struct sk_buff *, struct tc_action *, int, int);
	int     (*cleanup)(struct tc_action *, int bind);
	int     (*lookup)(struct tc_action *, u32);
	int     (*init)(struct nlattr *, struct nlattr *, struct tc_action *, int , int);
	int     (*walk)(struct sk_buff *, struct netlink_callback *, int, struct tc_action *);
};

extern struct tcf_common *tcf_hash_lookup(u32 index,
					  struct tcf_hashinfo *hinfo);
extern void tcf_hash_destroy(struct tcf_common *p, struct tcf_hashinfo *hinfo);
extern int tcf_hash_release(struct tcf_common *p, int bind,
			    struct tcf_hashinfo *hinfo);
extern int tcf_generic_walker(struct sk_buff *skb, struct netlink_callback *cb,
			      int type, struct tc_action *a);
extern u32 tcf_hash_new_index(u32 *idx_gen, struct tcf_hashinfo *hinfo);
extern int tcf_hash_search(struct tc_action *a, u32 index);
extern struct tcf_common *tcf_hash_check(u32 index, struct tc_action *a,
					 int bind, struct tcf_hashinfo *hinfo);
extern struct tcf_common *tcf_hash_create(u32 index, struct nlattr *est,
					  struct tc_action *a, int size,
					  int bind, u32 *idx_gen,
					  struct tcf_hashinfo *hinfo);
extern void tcf_hash_insert(struct tcf_common *p, struct tcf_hashinfo *hinfo);

extern int tcf_register_action(struct tc_action_ops *a);
extern int tcf_unregister_action(struct tc_action_ops *a);
extern void tcf_action_destroy(struct tc_action *a, int bind);
extern int tcf_action_exec(struct sk_buff *skb, struct tc_action *a, struct tcf_result *res);
extern struct tc_action *tcf_action_init(struct nlattr *nla, struct nlattr *est, char *n, int ovr, int bind);
extern struct tc_action *tcf_action_init_1(struct nlattr *nla, struct nlattr *est, char *n, int ovr, int bind);
extern int tcf_action_dump(struct sk_buff *skb, struct tc_action *a, int, int);
extern int tcf_action_dump_old(struct sk_buff *skb, struct tc_action *a, int, int);
extern int tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int, int);
extern int tcf_action_copy_stats (struct sk_buff *,struct tc_action *, int);
#endif /* CONFIG_NET_CLS_ACT */
#endif
Commit	Line	Data
1da177e4 LT	1	#ifndef __NET_ACT_API_H
	2	#define __NET_ACT_API_H
	3
	4	/*
	5	* Public police action API for classifiers/qdiscs
	6	*/
	7
	8	#include <net/sch_generic.h>
	9	#include <net/pkt_sched.h>
	10
e9ce1cd3 DM	11	struct tcf_common {
	12	struct tcf_common *tcfc_next;
	13	u32 tcfc_index;
	14	int tcfc_refcnt;
	15	int tcfc_bindcnt;
	16	u32 tcfc_capab;
	17	int tcfc_action;
	18	struct tcf_t tcfc_tm;
c1a8f1f1	19	struct gnet_stats_basic_packed tcfc_bstats;
e9ce1cd3 DM	20	struct gnet_stats_queue tcfc_qstats;
e9ce1cd3 DM	21	struct gnet_stats_rate_est tcfc_rate_est;
e9ce1cd3	22	spinlock_t tcfc_lock;
c7de2cf0	23	struct rcu_head tcfc_rcu;
e9ce1cd3 DM	24	};
	25	#define tcf_next common.tcfc_next
	26	#define tcf_index common.tcfc_index
	27	#define tcf_refcnt common.tcfc_refcnt
	28	#define tcf_bindcnt common.tcfc_bindcnt
	29	#define tcf_capab common.tcfc_capab
	30	#define tcf_action common.tcfc_action
	31	#define tcf_tm common.tcfc_tm
	32	#define tcf_bstats common.tcfc_bstats
	33	#define tcf_qstats common.tcfc_qstats
	34	#define tcf_rate_est common.tcfc_rate_est
e9ce1cd3	35	#define tcf_lock common.tcfc_lock
c7de2cf0	36	#define tcf_rcu common.tcfc_rcu
e9ce1cd3 DM	37
	38	struct tcf_police {
	39	struct tcf_common common;
	40	int tcfp_result;
	41	u32 tcfp_ewma_rate;
	42	u32 tcfp_burst;
	43	u32 tcfp_mtu;
	44	u32 tcfp_toks;
	45	u32 tcfp_ptoks;
	46	psched_time_t tcfp_t_c;
	47	struct qdisc_rate_table *tcfp_R_tab;
	48	struct qdisc_rate_table *tcfp_P_tab;
1da177e4	49	};
e9ce1cd3 DM	50	#define to_police(pc) \
	51	container_of(pc, struct tcf_police, common)
	52
	53	struct tcf_hashinfo {
	54	struct tcf_common **htab;
	55	unsigned int hmask;
	56	rwlock_t *lock;
	57	};
	58
	59	static inline unsigned int tcf_hash(u32 index, unsigned int hmask)
	60	{
	61	return index & hmask;
	62	}
1da177e4 LT	63
	64	#ifdef CONFIG_NET_CLS_ACT
	65
	66	#define ACT_P_CREATED 1
	67	#define ACT_P_DELETED 1
	68
e9ce1cd3 DM	69	struct tcf_act_hdr {
e9ce1cd3 DM	70	struct tcf_common common;
1da177e4 LT	71	};
1da177e4 LT	72
e9ce1cd3 DM	73	struct tc_action {
	74	void *priv;
	75	struct tc_action_ops *ops;
	76	__u32 type; /* for backward compat(TCA_OLD_COMPAT) */
	77	__u32 order;
	78	struct tc_action *next;
1da177e4 LT	79	};
	80
	81	#define TCA_CAP_NONE 0
e9ce1cd3	82	struct tc_action_ops {
1da177e4	83	struct tc_action_ops *next;
e9ce1cd3	84	struct tcf_hashinfo *hinfo;
1da177e4 LT	85	char kind[IFNAMSIZ];
	86	__u32 type; /* TBD to match kind */
	87	__u32 capab; /* capabilities includes 4 bit version */
	88	struct module *owner;
f43c5a0d	89	int (act)(struct sk_buff , struct tc_action , struct tcf_result );
1da177e4	90	int (get_stats)(struct sk_buff , struct tc_action *);
e9ce1cd3	91	int (dump)(struct sk_buff , struct tc_action *, int, int);
1da177e4	92	int (cleanup)(struct tc_action , int bind);
e9ce1cd3	93	int (lookup)(struct tc_action , u32);
7ba699c6	94	int (init)(struct nlattr , struct nlattr , struct tc_action , int , int);
e9ce1cd3	95	int (walk)(struct sk_buff , struct netlink_callback , int, struct tc_action );
1da177e4 LT	96	};
1da177e4 LT	97
e9ce1cd3 DM	98	extern struct tcf_common *tcf_hash_lookup(u32 index,
	99	struct tcf_hashinfo *hinfo);
	100	extern void tcf_hash_destroy(struct tcf_common p, struct tcf_hashinfo hinfo);
	101	extern int tcf_hash_release(struct tcf_common *p, int bind,
	102	struct tcf_hashinfo *hinfo);
	103	extern int tcf_generic_walker(struct sk_buff skb, struct netlink_callback cb,
	104	int type, struct tc_action *a);
	105	extern u32 tcf_hash_new_index(u32 idx_gen, struct tcf_hashinfo hinfo);
	106	extern int tcf_hash_search(struct tc_action *a, u32 index);
	107	extern struct tcf_common tcf_hash_check(u32 index, struct tc_action a,
	108	int bind, struct tcf_hashinfo *hinfo);
7ba699c6	109	extern struct tcf_common tcf_hash_create(u32 index, struct nlattr est,
e9ce1cd3 DM	110	struct tc_action *a, int size,
	111	int bind, u32 *idx_gen,
	112	struct tcf_hashinfo *hinfo);
	113	extern void tcf_hash_insert(struct tcf_common p, struct tcf_hashinfo hinfo);
	114
1da177e4 LT	115	extern int tcf_register_action(struct tc_action_ops *a);
	116	extern int tcf_unregister_action(struct tc_action_ops *a);
	117	extern void tcf_action_destroy(struct tc_action *a, int bind);
	118	extern int tcf_action_exec(struct sk_buff skb, struct tc_action a, struct tcf_result *res);
ab27cfb8 PM	119	extern struct tc_action tcf_action_init(struct nlattr nla, struct nlattr est, char n, int ovr, int bind);
ab27cfb8 PM	120	extern struct tc_action tcf_action_init_1(struct nlattr nla, struct nlattr est, char n, int ovr, int bind);
1da177e4 LT	121	extern int tcf_action_dump(struct sk_buff skb, struct tc_action a, int, int);
	122	extern int tcf_action_dump_old(struct sk_buff skb, struct tc_action a, int, int);
	123	extern int tcf_action_dump_1(struct sk_buff skb, struct tc_action a, int, int);
	124	extern int tcf_action_copy_stats (struct sk_buff ,struct tc_action , int);
	125	#endif /* CONFIG_NET_CLS_ACT */
1da177e4	126	#endif