1 #ifndef __NET_ACT_API_H
2 #define __NET_ACT_API_H
5 * Public police action API for classifiers/qdiscs
8 #include <net/sch_generic.h>
9 #include <net/pkt_sched.h>
12 struct hlist_node tcfc_head;
19 struct gnet_stats_basic_packed tcfc_bstats;
20 struct gnet_stats_queue tcfc_qstats;
21 struct gnet_stats_rate_est64 tcfc_rate_est;
23 struct rcu_head tcfc_rcu;
25 #define tcf_head common.tcfc_head
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
35 #define tcf_lock common.tcfc_lock
36 #define tcf_rcu common.tcfc_rcu
39 struct hlist_head *htab;
44 static inline unsigned int tcf_hash(u32 index, unsigned int hmask)
49 static inline int tcf_hashinfo_init(struct tcf_hashinfo *hf, unsigned int mask)
53 spin_lock_init(&hf->lock);
55 hf->htab = kzalloc((mask + 1) * sizeof(struct hlist_head),
59 for (i = 0; i < mask + 1; i++)
60 INIT_HLIST_HEAD(&hf->htab[i]);
64 static inline void tcf_hashinfo_destroy(struct tcf_hashinfo *hf)
69 #ifdef CONFIG_NET_CLS_ACT
71 #define ACT_P_CREATED 1
72 #define ACT_P_DELETED 1
75 struct tcf_common common;
80 const struct tc_action_ops *ops;
81 __u32 type; /* for backward compat(TCA_OLD_COMPAT) */
83 struct list_head list;
86 #define TCA_CAP_NONE 0
87 struct tc_action_ops {
88 struct list_head head;
89 struct tcf_hashinfo *hinfo;
91 __u32 type; /* TBD to match kind */
92 __u32 capab; /* capabilities includes 4 bit version */
94 int (*act)(struct sk_buff *, const struct tc_action *, struct tcf_result *);
95 int (*dump)(struct sk_buff *, struct tc_action *, int, int);
96 int (*cleanup)(struct tc_action *, int bind);
97 int (*lookup)(struct tc_action *, u32);
98 int (*init)(struct net *net, struct nlattr *nla,
99 struct nlattr *est, struct tc_action *act, int ovr,
101 int (*walk)(struct sk_buff *, struct netlink_callback *, int, struct tc_action *);
104 struct tcf_common *tcf_hash_lookup(u32 index, struct tcf_hashinfo *hinfo);
105 void tcf_hash_destroy(struct tcf_common *p, struct tcf_hashinfo *hinfo);
106 int tcf_hash_release(struct tcf_common *p, int bind,
107 struct tcf_hashinfo *hinfo);
108 int tcf_generic_walker(struct sk_buff *skb, struct netlink_callback *cb,
109 int type, struct tc_action *a);
110 u32 tcf_hash_new_index(u32 *idx_gen, struct tcf_hashinfo *hinfo);
111 int tcf_hash_search(struct tc_action *a, u32 index);
112 struct tcf_common *tcf_hash_check(u32 index, struct tc_action *a,
113 int bind, struct tcf_hashinfo *hinfo);
114 struct tcf_common *tcf_hash_create(u32 index, struct nlattr *est,
115 struct tc_action *a, int size,
116 int bind, u32 *idx_gen,
117 struct tcf_hashinfo *hinfo);
118 void tcf_hash_insert(struct tcf_common *p, struct tcf_hashinfo *hinfo);
120 int tcf_register_action(struct tc_action_ops *a);
121 int tcf_unregister_action(struct tc_action_ops *a);
122 void tcf_action_destroy(struct list_head *actions, int bind);
123 int tcf_action_exec(struct sk_buff *skb, const struct list_head *actions,
124 struct tcf_result *res);
125 int tcf_action_init(struct net *net, struct nlattr *nla,
126 struct nlattr *est, char *n, int ovr,
127 int bind, struct list_head *);
128 struct tc_action *tcf_action_init_1(struct net *net, struct nlattr *nla,
129 struct nlattr *est, char *n, int ovr,
131 int tcf_action_dump(struct sk_buff *skb, struct list_head *, int, int);
132 int tcf_action_dump_old(struct sk_buff *skb, struct tc_action *a, int, int);
133 int tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int, int);
134 int tcf_action_copy_stats(struct sk_buff *, struct tc_action *, int);
135 #endif /* CONFIG_NET_CLS_ACT */