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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
11struct 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 struct rcu_head tcfc_rcu;
24};
25#define tcf_next common.tcfc_next
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
37
38struct tcf_police {
39 struct tcf_common common;
40 int tcfp_result;
41 u32 tcfp_ewma_rate;
42 u32 tcfp_burst;
43 u32 tcfp_mtu;
44 u32 tcfp_toks;
45 u32 tcfp_ptoks;
46 psched_time_t tcfp_t_c;
47 struct qdisc_rate_table *tcfp_R_tab;
48 struct qdisc_rate_table *tcfp_P_tab;
49};
50#define to_police(pc) \
51 container_of(pc, struct tcf_police, common)
52
53struct tcf_hashinfo {
54 struct tcf_common **htab;
55 unsigned int hmask;
56 rwlock_t *lock;
57};
58
59static inline unsigned int tcf_hash(u32 index, unsigned int hmask)
60{
61 return index & hmask;
62}
63
64#ifdef CONFIG_NET_CLS_ACT
65
66#define ACT_P_CREATED 1
67#define ACT_P_DELETED 1
68
69struct tcf_act_hdr {
70 struct tcf_common common;
71};
72
73struct tc_action {
74 void *priv;
75 const struct tc_action_ops *ops;
76 __u32 type; /* for backward compat(TCA_OLD_COMPAT) */
77 __u32 order;
78 struct tc_action *next;
79};
80
81#define TCA_CAP_NONE 0
82struct tc_action_ops {
83 struct tc_action_ops *next;
84 struct tcf_hashinfo *hinfo;
85 char kind[IFNAMSIZ];
86 __u32 type; /* TBD to match kind */
87 __u32 capab; /* capabilities includes 4 bit version */
88 struct module *owner;
89 int (*act)(struct sk_buff *, const struct tc_action *, struct tcf_result *);
90 int (*get_stats)(struct sk_buff *, struct tc_action *);
91 int (*dump)(struct sk_buff *, struct tc_action *, int, int);
92 int (*cleanup)(struct tc_action *, int bind);
93 int (*lookup)(struct tc_action *, u32);
94 int (*init)(struct nlattr *, struct nlattr *, struct tc_action *, int , int);
95 int (*walk)(struct sk_buff *, struct netlink_callback *, int, struct tc_action *);
96};
97
98extern struct tcf_common *tcf_hash_lookup(u32 index,
99 struct tcf_hashinfo *hinfo);
100extern void tcf_hash_destroy(struct tcf_common *p, struct tcf_hashinfo *hinfo);
101extern int tcf_hash_release(struct tcf_common *p, int bind,
102 struct tcf_hashinfo *hinfo);
103extern int tcf_generic_walker(struct sk_buff *skb, struct netlink_callback *cb,
104 int type, struct tc_action *a);
105extern u32 tcf_hash_new_index(u32 *idx_gen, struct tcf_hashinfo *hinfo);
106extern int tcf_hash_search(struct tc_action *a, u32 index);
107extern struct tcf_common *tcf_hash_check(u32 index, struct tc_action *a,
108 int bind, struct tcf_hashinfo *hinfo);
109extern struct tcf_common *tcf_hash_create(u32 index, struct nlattr *est,
110 struct tc_action *a, int size,
111 int bind, u32 *idx_gen,
112 struct tcf_hashinfo *hinfo);
113extern void tcf_hash_insert(struct tcf_common *p, struct tcf_hashinfo *hinfo);
114
115extern int tcf_register_action(struct tc_action_ops *a);
116extern int tcf_unregister_action(struct tc_action_ops *a);
117extern void tcf_action_destroy(struct tc_action *a, int bind);
118extern int tcf_action_exec(struct sk_buff *skb, const struct tc_action *a, struct tcf_result *res);
119extern struct tc_action *tcf_action_init(struct nlattr *nla, struct nlattr *est, char *n, int ovr, int bind);
120extern struct tc_action *tcf_action_init_1(struct nlattr *nla, struct nlattr *est, char *n, int ovr, int bind);
121extern int tcf_action_dump(struct sk_buff *skb, struct tc_action *a, int, int);
122extern int tcf_action_dump_old(struct sk_buff *skb, struct tc_action *a, int, int);
123extern int tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int, int);
124extern int tcf_action_copy_stats (struct sk_buff *,struct tc_action *, int);
125#endif /* CONFIG_NET_CLS_ACT */
126#endif
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
11struct tcf_common {
12 struct hlist_node tcfc_head;
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_est64 tcfc_rate_est;
22 spinlock_t tcfc_lock;
23 struct rcu_head tcfc_rcu;
24};
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
37
38struct tcf_hashinfo {
39 struct hlist_head *htab;
40 unsigned int hmask;
41 spinlock_t lock;
42 u32 index;
43};
44
45static inline unsigned int tcf_hash(u32 index, unsigned int hmask)
46{
47 return index & hmask;
48}
49
50static inline int tcf_hashinfo_init(struct tcf_hashinfo *hf, unsigned int mask)
51{
52 int i;
53
54 spin_lock_init(&hf->lock);
55 hf->index = 0;
56 hf->hmask = mask;
57 hf->htab = kzalloc((mask + 1) * sizeof(struct hlist_head),
58 GFP_KERNEL);
59 if (!hf->htab)
60 return -ENOMEM;
61 for (i = 0; i < mask + 1; i++)
62 INIT_HLIST_HEAD(&hf->htab[i]);
63 return 0;
64}
65
66static inline void tcf_hashinfo_destroy(struct tcf_hashinfo *hf)
67{
68 kfree(hf->htab);
69}
70
71#ifdef CONFIG_NET_CLS_ACT
72
73#define ACT_P_CREATED 1
74#define ACT_P_DELETED 1
75
76struct tc_action {
77 void *priv;
78 const struct tc_action_ops *ops;
79 __u32 type; /* for backward compat(TCA_OLD_COMPAT) */
80 __u32 order;
81 struct list_head list;
82};
83
84struct tc_action_ops {
85 struct list_head head;
86 struct tcf_hashinfo *hinfo;
87 char kind[IFNAMSIZ];
88 __u32 type; /* TBD to match kind */
89 struct module *owner;
90 int (*act)(struct sk_buff *, const struct tc_action *, struct tcf_result *);
91 int (*dump)(struct sk_buff *, struct tc_action *, int, int);
92 void (*cleanup)(struct tc_action *, int bind);
93 int (*lookup)(struct tc_action *, u32);
94 int (*init)(struct net *net, struct nlattr *nla,
95 struct nlattr *est, struct tc_action *act, int ovr,
96 int bind);
97 int (*walk)(struct sk_buff *, struct netlink_callback *, int, struct tc_action *);
98};
99
100int tcf_hash_search(struct tc_action *a, u32 index);
101void tcf_hash_destroy(struct tc_action *a);
102int tcf_hash_release(struct tc_action *a, int bind);
103u32 tcf_hash_new_index(struct tcf_hashinfo *hinfo);
104int tcf_hash_check(u32 index, struct tc_action *a, int bind);
105int tcf_hash_create(u32 index, struct nlattr *est, struct tc_action *a,
106 int size, int bind);
107void tcf_hash_cleanup(struct tc_action *a, struct nlattr *est);
108void tcf_hash_insert(struct tc_action *a);
109
110int tcf_register_action(struct tc_action_ops *a, unsigned int mask);
111int tcf_unregister_action(struct tc_action_ops *a);
112int tcf_action_destroy(struct list_head *actions, int bind);
113int tcf_action_exec(struct sk_buff *skb, const struct list_head *actions,
114 struct tcf_result *res);
115int tcf_action_init(struct net *net, struct nlattr *nla,
116 struct nlattr *est, char *n, int ovr,
117 int bind, struct list_head *);
118struct tc_action *tcf_action_init_1(struct net *net, struct nlattr *nla,
119 struct nlattr *est, char *n, int ovr,
120 int bind);
121int tcf_action_dump(struct sk_buff *skb, struct list_head *, int, int);
122int tcf_action_dump_old(struct sk_buff *skb, struct tc_action *a, int, int);
123int tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int, int);
124int tcf_action_copy_stats(struct sk_buff *, struct tc_action *, int);
125#endif /* CONFIG_NET_CLS_ACT */
126#endif