| 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 | 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; |
| 19 | struct gnet_stats_basic_packed tcfc_bstats; |
| 20 | struct gnet_stats_queue tcfc_qstats; |
| 21 | struct gnet_stats_rate_est tcfc_rate_est; |
| 22 | spinlock_t tcfc_lock; |
| 23 | }; |
| 24 | #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 |
| 34 | #define tcf_lock common.tcfc_lock |
| 35 | |
| 36 | struct 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 | |
| 51 | struct tcf_hashinfo { |
| 52 | struct tcf_common **htab; |
| 53 | unsigned int hmask; |
| 54 | rwlock_t *lock; |
| 55 | }; |
| 56 | |
| 57 | static inline unsigned int tcf_hash(u32 index, unsigned int hmask) |
| 58 | { |
| 59 | return index & hmask; |
| 60 | } |
| 61 | |
| 62 | #ifdef CONFIG_NET_CLS_ACT |
| 63 | |
| 64 | #define ACT_P_CREATED 1 |
| 65 | #define ACT_P_DELETED 1 |
| 66 | |
| 67 | struct tcf_act_hdr { |
| 68 | struct tcf_common common; |
| 69 | }; |
| 70 | |
| 71 | struct 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; |
| 77 | }; |
| 78 | |
| 79 | #define TCA_CAP_NONE 0 |
| 80 | struct tc_action_ops { |
| 81 | struct tc_action_ops *next; |
| 82 | struct tcf_hashinfo *hinfo; |
| 83 | char kind[IFNAMSIZ]; |
| 84 | __u32 type; /* TBD to match kind */ |
| 85 | __u32 capab; /* capabilities includes 4 bit version */ |
| 86 | struct module *owner; |
| 87 | int (*act)(struct sk_buff *, struct tc_action *, struct tcf_result *); |
| 88 | int (*get_stats)(struct sk_buff *, struct tc_action *); |
| 89 | int (*dump)(struct sk_buff *, struct tc_action *, int, int); |
| 90 | int (*cleanup)(struct tc_action *, int bind); |
| 91 | int (*lookup)(struct tc_action *, u32); |
| 92 | int (*init)(struct nlattr *, struct nlattr *, struct tc_action *, int , int); |
| 93 | int (*walk)(struct sk_buff *, struct netlink_callback *, int, struct tc_action *); |
| 94 | }; |
| 95 | |
| 96 | extern struct tcf_common *tcf_hash_lookup(u32 index, |
| 97 | struct tcf_hashinfo *hinfo); |
| 98 | extern void tcf_hash_destroy(struct tcf_common *p, struct tcf_hashinfo *hinfo); |
| 99 | extern int tcf_hash_release(struct tcf_common *p, int bind, |
| 100 | struct tcf_hashinfo *hinfo); |
| 101 | extern int tcf_generic_walker(struct sk_buff *skb, struct netlink_callback *cb, |
| 102 | int type, struct tc_action *a); |
| 103 | extern u32 tcf_hash_new_index(u32 *idx_gen, struct tcf_hashinfo *hinfo); |
| 104 | extern int tcf_hash_search(struct tc_action *a, u32 index); |
| 105 | extern struct tcf_common *tcf_hash_check(u32 index, struct tc_action *a, |
| 106 | int bind, struct tcf_hashinfo *hinfo); |
| 107 | extern struct tcf_common *tcf_hash_create(u32 index, struct nlattr *est, |
| 108 | struct tc_action *a, int size, |
| 109 | int bind, u32 *idx_gen, |
| 110 | struct tcf_hashinfo *hinfo); |
| 111 | extern void tcf_hash_insert(struct tcf_common *p, struct tcf_hashinfo *hinfo); |
| 112 | |
| 113 | extern int tcf_register_action(struct tc_action_ops *a); |
| 114 | extern int tcf_unregister_action(struct tc_action_ops *a); |
| 115 | extern void tcf_action_destroy(struct tc_action *a, int bind); |
| 116 | extern int tcf_action_exec(struct sk_buff *skb, struct tc_action *a, struct tcf_result *res); |
| 117 | extern struct tc_action *tcf_action_init(struct nlattr *nla, struct nlattr *est, char *n, int ovr, int bind); |
| 118 | extern struct tc_action *tcf_action_init_1(struct nlattr *nla, struct nlattr *est, char *n, int ovr, int bind); |
| 119 | extern int tcf_action_dump(struct sk_buff *skb, struct tc_action *a, int, int); |
| 120 | extern int tcf_action_dump_old(struct sk_buff *skb, struct tc_action *a, int, int); |
| 121 | extern int tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int, int); |
| 122 | extern int tcf_action_copy_stats (struct sk_buff *,struct tc_action *, int); |
| 123 | #endif /* CONFIG_NET_CLS_ACT */ |
| 124 | #endif |