diff options
Diffstat (limited to 'include/net/act_api.h')
| -rw-r--r-- | include/net/act_api.h | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/include/net/act_api.h b/include/net/act_api.h new file mode 100644 index 00000000..c739531e --- /dev/null +++ b/include/net/act_api.h @@ -0,0 +1,126 @@ +#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_police { + struct tcf_common common; + int tcfp_result; + u32 tcfp_ewma_rate; + u32 tcfp_burst; + u32 tcfp_mtu; + u32 tcfp_toks; + u32 tcfp_ptoks; + psched_time_t tcfp_t_c; + struct qdisc_rate_table *tcfp_R_tab; + struct qdisc_rate_table *tcfp_P_tab; +}; +#define to_police(pc) \ + container_of(pc, struct tcf_police, common) + +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 nlattr *, struct nlattr *, struct tc_action *, int , int); + 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 nlattr *nla, struct nlattr *est, char *n, int ovr, int bind); +extern struct tc_action *tcf_action_init_1(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 |