Commit | Line | Data |
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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 | ||
e9ce1cd3 | 11 | struct tcf_common { |
89819dc0 | 12 | struct hlist_node tcfc_head; |
e9ce1cd3 DM |
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 | 20 | struct gnet_stats_queue tcfc_qstats; |
45203a3b | 21 | struct gnet_stats_rate_est64 tcfc_rate_est; |
e9ce1cd3 | 22 | spinlock_t tcfc_lock; |
c7de2cf0 | 23 | struct rcu_head tcfc_rcu; |
e9ce1cd3 | 24 | }; |
89819dc0 | 25 | #define tcf_head common.tcfc_head |
e9ce1cd3 DM |
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 | 37 | |
e9ce1cd3 | 38 | struct tcf_hashinfo { |
89819dc0 | 39 | struct hlist_head *htab; |
e9ce1cd3 | 40 | unsigned int hmask; |
89819dc0 | 41 | spinlock_t lock; |
ddafd34f | 42 | u32 index; |
e9ce1cd3 DM |
43 | }; |
44 | ||
45 | static inline unsigned int tcf_hash(u32 index, unsigned int hmask) | |
46 | { | |
47 | return index & hmask; | |
48 | } | |
1da177e4 | 49 | |
369ba567 WC |
50 | static inline int tcf_hashinfo_init(struct tcf_hashinfo *hf, unsigned int mask) |
51 | { | |
89819dc0 WC |
52 | int i; |
53 | ||
54 | spin_lock_init(&hf->lock); | |
ddafd34f | 55 | hf->index = 0; |
369ba567 | 56 | hf->hmask = mask; |
89819dc0 | 57 | hf->htab = kzalloc((mask + 1) * sizeof(struct hlist_head), |
369ba567 WC |
58 | GFP_KERNEL); |
59 | if (!hf->htab) | |
60 | return -ENOMEM; | |
89819dc0 WC |
61 | for (i = 0; i < mask + 1; i++) |
62 | INIT_HLIST_HEAD(&hf->htab[i]); | |
369ba567 WC |
63 | return 0; |
64 | } | |
65 | ||
66 | static inline void tcf_hashinfo_destroy(struct tcf_hashinfo *hf) | |
67 | { | |
68 | kfree(hf->htab); | |
69 | } | |
70 | ||
1da177e4 LT |
71 | #ifdef CONFIG_NET_CLS_ACT |
72 | ||
73 | #define ACT_P_CREATED 1 | |
74 | #define ACT_P_DELETED 1 | |
75 | ||
e9ce1cd3 DM |
76 | struct tc_action { |
77 | void *priv; | |
dc7f9f6e | 78 | const struct tc_action_ops *ops; |
e9ce1cd3 DM |
79 | __u32 type; /* for backward compat(TCA_OLD_COMPAT) */ |
80 | __u32 order; | |
33be6271 | 81 | struct list_head list; |
1da177e4 LT |
82 | }; |
83 | ||
e9ce1cd3 | 84 | struct tc_action_ops { |
1f747c26 | 85 | struct list_head head; |
e9ce1cd3 | 86 | struct tcf_hashinfo *hinfo; |
1da177e4 LT |
87 | char kind[IFNAMSIZ]; |
88 | __u32 type; /* TBD to match kind */ | |
1da177e4 | 89 | struct module *owner; |
dc7f9f6e | 90 | int (*act)(struct sk_buff *, const struct tc_action *, struct tcf_result *); |
e9ce1cd3 | 91 | int (*dump)(struct sk_buff *, struct tc_action *, int, int); |
a5b5c958 | 92 | void (*cleanup)(struct tc_action *, int bind); |
e9ce1cd3 | 93 | int (*lookup)(struct tc_action *, u32); |
c1b52739 BL |
94 | int (*init)(struct net *net, struct nlattr *nla, |
95 | struct nlattr *est, struct tc_action *act, int ovr, | |
96 | int bind); | |
e9ce1cd3 | 97 | int (*walk)(struct sk_buff *, struct netlink_callback *, int, struct tc_action *); |
1da177e4 LT |
98 | }; |
99 | ||
6e6a50c2 | 100 | int tcf_hash_search(struct tc_action *a, u32 index); |
86062033 WC |
101 | void tcf_hash_destroy(struct tc_action *a); |
102 | int tcf_hash_release(struct tc_action *a, int bind); | |
ddafd34f | 103 | u32 tcf_hash_new_index(struct tcf_hashinfo *hinfo); |
86062033 WC |
104 | int tcf_hash_check(u32 index, struct tc_action *a, int bind); |
105 | int tcf_hash_create(u32 index, struct nlattr *est, struct tc_action *a, | |
106 | int size, int bind); | |
107 | void tcf_hash_cleanup(struct tc_action *a, struct nlattr *est); | |
108 | void tcf_hash_insert(struct tc_action *a); | |
e9ce1cd3 | 109 | |
4f1e9d89 | 110 | int tcf_register_action(struct tc_action_ops *a, unsigned int mask); |
5c15257f | 111 | int tcf_unregister_action(struct tc_action_ops *a); |
55334a5d | 112 | int tcf_action_destroy(struct list_head *actions, int bind); |
33be6271 | 113 | int tcf_action_exec(struct sk_buff *skb, const struct list_head *actions, |
5c15257f | 114 | struct tcf_result *res); |
33be6271 | 115 | int tcf_action_init(struct net *net, struct nlattr *nla, |
5c15257f | 116 | struct nlattr *est, char *n, int ovr, |
33be6271 | 117 | int bind, struct list_head *); |
5c15257f JP |
118 | struct tc_action *tcf_action_init_1(struct net *net, struct nlattr *nla, |
119 | struct nlattr *est, char *n, int ovr, | |
120 | int bind); | |
33be6271 | 121 | int tcf_action_dump(struct sk_buff *skb, struct list_head *, int, int); |
5c15257f JP |
122 | int tcf_action_dump_old(struct sk_buff *skb, struct tc_action *a, int, int); |
123 | int tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int, int); | |
124 | int tcf_action_copy_stats(struct sk_buff *, struct tc_action *, int); | |
1da177e4 | 125 | #endif /* CONFIG_NET_CLS_ACT */ |
1da177e4 | 126 | #endif |