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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 | #ifndef __NET_ACT_API_H #define __NET_ACT_API_H /* * Public police action API for classifiers/qdiscs */ #include <net/sch_generic.h> #include <net/pkt_sched.h> struct tcf_common { struct tcf_common *tcfc_next; u32 tcfc_index; int tcfc_refcnt; int tcfc_bindcnt; u32 tcfc_capab; int tcfc_action; struct tcf_t tcfc_tm; struct gnet_stats_basic_packed tcfc_bstats; struct gnet_stats_queue tcfc_qstats; struct gnet_stats_rate_est tcfc_rate_est; spinlock_t tcfc_lock; struct rcu_head tcfc_rcu; }; #define tcf_next common.tcfc_next #define tcf_index common.tcfc_index #define tcf_refcnt common.tcfc_refcnt #define tcf_bindcnt common.tcfc_bindcnt #define tcf_capab common.tcfc_capab #define tcf_action common.tcfc_action #define tcf_tm common.tcfc_tm #define tcf_bstats common.tcfc_bstats #define tcf_qstats common.tcfc_qstats #define tcf_rate_est common.tcfc_rate_est #define tcf_lock common.tcfc_lock #define tcf_rcu common.tcfc_rcu struct tcf_hashinfo { struct tcf_common **htab; unsigned int hmask; rwlock_t *lock; }; static inline unsigned int tcf_hash(u32 index, unsigned int hmask) { return index & hmask; } #ifdef CONFIG_NET_CLS_ACT #define ACT_P_CREATED 1 #define ACT_P_DELETED 1 struct tcf_act_hdr { struct tcf_common common; }; struct tc_action { void *priv; const struct tc_action_ops *ops; __u32 type; /* for backward compat(TCA_OLD_COMPAT) */ __u32 order; struct tc_action *next; }; #define TCA_CAP_NONE 0 struct tc_action_ops { struct tc_action_ops *next; struct tcf_hashinfo *hinfo; char kind[IFNAMSIZ]; __u32 type; /* TBD to match kind */ __u32 capab; /* capabilities includes 4 bit version */ struct module *owner; int (*act)(struct sk_buff *, const struct tc_action *, struct tcf_result *); int (*get_stats)(struct sk_buff *, struct tc_action *); int (*dump)(struct sk_buff *, struct tc_action *, int, int); int (*cleanup)(struct tc_action *, int bind); int (*lookup)(struct tc_action *, u32); int (*init)(struct net *net, struct nlattr *nla, struct nlattr *est, struct tc_action *act, int ovr, int bind); int (*walk)(struct sk_buff *, struct netlink_callback *, int, struct tc_action *); }; extern struct tcf_common *tcf_hash_lookup(u32 index, struct tcf_hashinfo *hinfo); extern void tcf_hash_destroy(struct tcf_common *p, struct tcf_hashinfo *hinfo); extern int tcf_hash_release(struct tcf_common *p, int bind, struct tcf_hashinfo *hinfo); extern int tcf_generic_walker(struct sk_buff *skb, struct netlink_callback *cb, int type, struct tc_action *a); extern u32 tcf_hash_new_index(u32 *idx_gen, struct tcf_hashinfo *hinfo); extern int tcf_hash_search(struct tc_action *a, u32 index); extern struct tcf_common *tcf_hash_check(u32 index, struct tc_action *a, int bind, struct tcf_hashinfo *hinfo); extern struct tcf_common *tcf_hash_create(u32 index, struct nlattr *est, struct tc_action *a, int size, int bind, u32 *idx_gen, struct tcf_hashinfo *hinfo); extern void tcf_hash_insert(struct tcf_common *p, struct tcf_hashinfo *hinfo); extern int tcf_register_action(struct tc_action_ops *a); extern int tcf_unregister_action(struct tc_action_ops *a); extern void tcf_action_destroy(struct tc_action *a, int bind); extern int tcf_action_exec(struct sk_buff *skb, const struct tc_action *a, struct tcf_result *res); extern struct tc_action *tcf_action_init(struct net *net, struct nlattr *nla, struct nlattr *est, char *n, int ovr, int bind); extern struct tc_action *tcf_action_init_1(struct net *net, struct nlattr *nla, struct nlattr *est, char *n, int ovr, int bind); extern int tcf_action_dump(struct sk_buff *skb, struct tc_action *a, int, int); extern int tcf_action_dump_old(struct sk_buff *skb, struct tc_action *a, int, int); extern int tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int, int); extern int tcf_action_copy_stats (struct sk_buff *,struct tc_action *, int); #endif /* CONFIG_NET_CLS_ACT */ #endif |