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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#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
David S. Millere9ce1cd2006-08-21 23:54:55 -070011struct 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;
19 struct gnet_stats_basic tcfc_bstats;
20 struct gnet_stats_queue tcfc_qstats;
21 struct gnet_stats_rate_est tcfc_rate_est;
David S. Millere9ce1cd2006-08-21 23:54:55 -070022 spinlock_t tcfc_lock;
Linus Torvalds1da177e2005-04-16 15:20:36 -070023};
David S. Millere9ce1cd2006-08-21 23:54:55 -070024#define tcf_next common.tcfc_next
25#define tcf_index common.tcfc_index
26#define tcf_refcnt common.tcfc_refcnt
27#define tcf_bindcnt common.tcfc_bindcnt
28#define tcf_capab common.tcfc_capab
29#define tcf_action common.tcfc_action
30#define tcf_tm common.tcfc_tm
31#define tcf_bstats common.tcfc_bstats
32#define tcf_qstats common.tcfc_qstats
33#define tcf_rate_est common.tcfc_rate_est
David S. Millere9ce1cd2006-08-21 23:54:55 -070034#define tcf_lock common.tcfc_lock
35
36struct tcf_police {
37 struct tcf_common common;
38 int tcfp_result;
39 u32 tcfp_ewma_rate;
40 u32 tcfp_burst;
41 u32 tcfp_mtu;
42 u32 tcfp_toks;
43 u32 tcfp_ptoks;
44 psched_time_t tcfp_t_c;
45 struct qdisc_rate_table *tcfp_R_tab;
46 struct qdisc_rate_table *tcfp_P_tab;
47};
48#define to_police(pc) \
49 container_of(pc, struct tcf_police, common)
50
51struct tcf_hashinfo {
52 struct tcf_common **htab;
53 unsigned int hmask;
54 rwlock_t *lock;
55};
56
57static inline unsigned int tcf_hash(u32 index, unsigned int hmask)
58{
59 return index & hmask;
60}
Linus Torvalds1da177e2005-04-16 15:20:36 -070061
62#ifdef CONFIG_NET_CLS_ACT
63
64#define ACT_P_CREATED 1
65#define ACT_P_DELETED 1
66
David S. Millere9ce1cd2006-08-21 23:54:55 -070067struct tcf_act_hdr {
68 struct tcf_common common;
Linus Torvalds1da177e2005-04-16 15:20:36 -070069};
70
David S. Millere9ce1cd2006-08-21 23:54:55 -070071struct tc_action {
72 void *priv;
73 struct tc_action_ops *ops;
74 __u32 type; /* for backward compat(TCA_OLD_COMPAT) */
75 __u32 order;
76 struct tc_action *next;
Linus Torvalds1da177e2005-04-16 15:20:36 -070077};
78
79#define TCA_CAP_NONE 0
David S. Millere9ce1cd2006-08-21 23:54:55 -070080struct tc_action_ops {
Linus Torvalds1da177e2005-04-16 15:20:36 -070081 struct tc_action_ops *next;
David S. Millere9ce1cd2006-08-21 23:54:55 -070082 struct tcf_hashinfo *hinfo;
Linus Torvalds1da177e2005-04-16 15:20:36 -070083 char kind[IFNAMSIZ];
84 __u32 type; /* TBD to match kind */
85 __u32 capab; /* capabilities includes 4 bit version */
86 struct module *owner;
Patrick McHardyf43c5a02006-01-08 22:15:34 -080087 int (*act)(struct sk_buff *, struct tc_action *, struct tcf_result *);
Linus Torvalds1da177e2005-04-16 15:20:36 -070088 int (*get_stats)(struct sk_buff *, struct tc_action *);
David S. Millere9ce1cd2006-08-21 23:54:55 -070089 int (*dump)(struct sk_buff *, struct tc_action *, int, int);
Linus Torvalds1da177e2005-04-16 15:20:36 -070090 int (*cleanup)(struct tc_action *, int bind);
David S. Millere9ce1cd2006-08-21 23:54:55 -070091 int (*lookup)(struct tc_action *, u32);
Patrick McHardy7ba699c2008-01-22 22:11:50 -080092 int (*init)(struct nlattr *, struct nlattr *, struct tc_action *, int , int);
David S. Millere9ce1cd2006-08-21 23:54:55 -070093 int (*walk)(struct sk_buff *, struct netlink_callback *, int, struct tc_action *);
Linus Torvalds1da177e2005-04-16 15:20:36 -070094};
95
David S. Millere9ce1cd2006-08-21 23:54:55 -070096extern struct tcf_common *tcf_hash_lookup(u32 index,
97 struct tcf_hashinfo *hinfo);
98extern void tcf_hash_destroy(struct tcf_common *p, struct tcf_hashinfo *hinfo);
99extern int tcf_hash_release(struct tcf_common *p, int bind,
100 struct tcf_hashinfo *hinfo);
101extern int tcf_generic_walker(struct sk_buff *skb, struct netlink_callback *cb,
102 int type, struct tc_action *a);
103extern u32 tcf_hash_new_index(u32 *idx_gen, struct tcf_hashinfo *hinfo);
104extern int tcf_hash_search(struct tc_action *a, u32 index);
105extern struct tcf_common *tcf_hash_check(u32 index, struct tc_action *a,
106 int bind, struct tcf_hashinfo *hinfo);
Patrick McHardy7ba699c2008-01-22 22:11:50 -0800107extern struct tcf_common *tcf_hash_create(u32 index, struct nlattr *est,
David S. Millere9ce1cd2006-08-21 23:54:55 -0700108 struct tc_action *a, int size,
109 int bind, u32 *idx_gen,
110 struct tcf_hashinfo *hinfo);
111extern void tcf_hash_insert(struct tcf_common *p, struct tcf_hashinfo *hinfo);
112
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113extern int tcf_register_action(struct tc_action_ops *a);
114extern int tcf_unregister_action(struct tc_action_ops *a);
115extern void tcf_action_destroy(struct tc_action *a, int bind);
116extern int tcf_action_exec(struct sk_buff *skb, struct tc_action *a, struct tcf_result *res);
Patrick McHardyab27cfb2008-01-23 20:33:13 -0800117extern struct tc_action *tcf_action_init(struct nlattr *nla, struct nlattr *est, char *n, int ovr, int bind);
118extern struct tc_action *tcf_action_init_1(struct nlattr *nla, struct nlattr *est, char *n, int ovr, int bind);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700119extern int tcf_action_dump(struct sk_buff *skb, struct tc_action *a, int, int);
120extern int tcf_action_dump_old(struct sk_buff *skb, struct tc_action *a, int, int);
121extern int tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int, int);
122extern int tcf_action_copy_stats (struct sk_buff *,struct tc_action *, int);
123#endif /* CONFIG_NET_CLS_ACT */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124#endif