[funini.com] -> [kei@sodan] -> Kernel Reading

root/include/net/act_api.h

/* [<][>][^][v][top][bottom][index][help] */

INCLUDED FROM


DEFINITIONS

This source file includes following definitions.
  1. tcf_hash

#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         tcfc_bstats;
        struct gnet_stats_queue         tcfc_qstats;
        struct gnet_stats_rate_est      tcfc_rate_est;
        spinlock_t                      tcfc_lock;
};
#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

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;
        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 *, 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, 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

/* [<][>][^][v][top][bottom][index][help] */

[funini.com] -> [kei@sodan] -> Kernel Reading