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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 | ||
11 | #define tca_gen(name) \ | |
12 | struct tcf_##name *next; \ | |
13 | u32 index; \ | |
14 | int refcnt; \ | |
15 | int bindcnt; \ | |
16 | u32 capab; \ | |
17 | int action; \ | |
18 | struct tcf_t tm; \ | |
19 | struct gnet_stats_basic bstats; \ | |
20 | struct gnet_stats_queue qstats; \ | |
21 | struct gnet_stats_rate_est rate_est; \ | |
22 | spinlock_t *stats_lock; \ | |
23 | spinlock_t lock | |
24 | ||
25 | struct tcf_police | |
26 | { | |
27 | tca_gen(police); | |
28 | int result; | |
29 | u32 ewma_rate; | |
30 | u32 burst; | |
31 | u32 mtu; | |
32 | u32 toks; | |
33 | u32 ptoks; | |
34 | psched_time_t t_c; | |
35 | struct qdisc_rate_table *R_tab; | |
36 | struct qdisc_rate_table *P_tab; | |
37 | }; | |
38 | ||
39 | #ifdef CONFIG_NET_CLS_ACT | |
40 | ||
41 | #define ACT_P_CREATED 1 | |
42 | #define ACT_P_DELETED 1 | |
43 | ||
44 | struct tcf_act_hdr | |
45 | { | |
46 | tca_gen(act_hdr); | |
47 | }; | |
48 | ||
49 | struct tc_action | |
50 | { | |
51 | void *priv; | |
52 | struct tc_action_ops *ops; | |
53 | __u32 type; /* for backward compat(TCA_OLD_COMPAT) */ | |
54 | __u32 order; | |
55 | struct tc_action *next; | |
56 | }; | |
57 | ||
58 | #define TCA_CAP_NONE 0 | |
59 | struct tc_action_ops | |
60 | { | |
61 | struct tc_action_ops *next; | |
62 | char kind[IFNAMSIZ]; | |
63 | __u32 type; /* TBD to match kind */ | |
64 | __u32 capab; /* capabilities includes 4 bit version */ | |
65 | struct module *owner; | |
f43c5a0d | 66 | int (*act)(struct sk_buff *, struct tc_action *, struct tcf_result *); |
1da177e4 LT |
67 | int (*get_stats)(struct sk_buff *, struct tc_action *); |
68 | int (*dump)(struct sk_buff *, struct tc_action *,int , int); | |
69 | int (*cleanup)(struct tc_action *, int bind); | |
70 | int (*lookup)(struct tc_action *, u32 ); | |
71 | int (*init)(struct rtattr *,struct rtattr *,struct tc_action *, int , int ); | |
72 | int (*walk)(struct sk_buff *, struct netlink_callback *, int , struct tc_action *); | |
73 | }; | |
74 | ||
75 | extern int tcf_register_action(struct tc_action_ops *a); | |
76 | extern int tcf_unregister_action(struct tc_action_ops *a); | |
77 | extern void tcf_action_destroy(struct tc_action *a, int bind); | |
78 | extern int tcf_action_exec(struct sk_buff *skb, struct tc_action *a, struct tcf_result *res); | |
79 | extern struct tc_action *tcf_action_init(struct rtattr *rta, struct rtattr *est, char *n, int ovr, int bind, int *err); | |
80 | extern struct tc_action *tcf_action_init_1(struct rtattr *rta, struct rtattr *est, char *n, int ovr, int bind, int *err); | |
81 | extern int tcf_action_dump(struct sk_buff *skb, struct tc_action *a, int, int); | |
82 | extern int tcf_action_dump_old(struct sk_buff *skb, struct tc_action *a, int, int); | |
83 | extern int tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int, int); | |
84 | extern int tcf_action_copy_stats (struct sk_buff *,struct tc_action *, int); | |
85 | #endif /* CONFIG_NET_CLS_ACT */ | |
86 | ||
87 | extern int tcf_police(struct sk_buff *skb, struct tcf_police *p); | |
88 | extern void tcf_police_destroy(struct tcf_police *p); | |
89 | extern struct tcf_police * tcf_police_locate(struct rtattr *rta, struct rtattr *est); | |
90 | extern int tcf_police_dump(struct sk_buff *skb, struct tcf_police *p); | |
91 | extern int tcf_police_dump_stats(struct sk_buff *skb, struct tcf_police *p); | |
92 | ||
93 | static inline int | |
94 | tcf_police_release(struct tcf_police *p, int bind) | |
95 | { | |
96 | int ret = 0; | |
97 | #ifdef CONFIG_NET_CLS_ACT | |
98 | if (p) { | |
99 | if (bind) { | |
100 | p->bindcnt--; | |
101 | } | |
102 | p->refcnt--; | |
103 | if (p->refcnt <= 0 && !p->bindcnt) { | |
104 | tcf_police_destroy(p); | |
105 | ret = 1; | |
106 | } | |
107 | } | |
108 | #else | |
109 | if (p && --p->refcnt == 0) | |
110 | tcf_police_destroy(p); | |
111 | ||
112 | #endif /* CONFIG_NET_CLS_ACT */ | |
113 | return ret; | |
114 | } | |
115 | ||
116 | #endif |