5c15257f93
There are a mix of function prototypes with and without extern in the kernel sources. Standardize on not using extern for function prototypes. Function prototypes don't need to be written with extern. extern is assumed by the compiler. Its use is as unnecessary as using auto to declare automatic/local variables in a block. Reflow modified prototypes to 80 columns. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
117 lines
3.8 KiB
C
117 lines
3.8 KiB
C
#ifndef __NET_ACT_API_H
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#define __NET_ACT_API_H
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/*
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* Public police action API for classifiers/qdiscs
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*/
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#include <net/sch_generic.h>
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#include <net/pkt_sched.h>
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struct tcf_common {
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struct tcf_common *tcfc_next;
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u32 tcfc_index;
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int tcfc_refcnt;
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int tcfc_bindcnt;
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u32 tcfc_capab;
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int tcfc_action;
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struct tcf_t tcfc_tm;
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struct gnet_stats_basic_packed tcfc_bstats;
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struct gnet_stats_queue tcfc_qstats;
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struct gnet_stats_rate_est64 tcfc_rate_est;
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spinlock_t tcfc_lock;
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struct rcu_head tcfc_rcu;
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};
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#define tcf_next common.tcfc_next
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#define tcf_index common.tcfc_index
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#define tcf_refcnt common.tcfc_refcnt
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#define tcf_bindcnt common.tcfc_bindcnt
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#define tcf_capab common.tcfc_capab
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#define tcf_action common.tcfc_action
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#define tcf_tm common.tcfc_tm
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#define tcf_bstats common.tcfc_bstats
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#define tcf_qstats common.tcfc_qstats
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#define tcf_rate_est common.tcfc_rate_est
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#define tcf_lock common.tcfc_lock
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#define tcf_rcu common.tcfc_rcu
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struct tcf_hashinfo {
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struct tcf_common **htab;
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unsigned int hmask;
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rwlock_t *lock;
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};
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static inline unsigned int tcf_hash(u32 index, unsigned int hmask)
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{
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return index & hmask;
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}
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#ifdef CONFIG_NET_CLS_ACT
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#define ACT_P_CREATED 1
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#define ACT_P_DELETED 1
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struct tcf_act_hdr {
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struct tcf_common common;
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};
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struct tc_action {
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void *priv;
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const struct tc_action_ops *ops;
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__u32 type; /* for backward compat(TCA_OLD_COMPAT) */
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__u32 order;
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struct tc_action *next;
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};
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#define TCA_CAP_NONE 0
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struct tc_action_ops {
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struct tc_action_ops *next;
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struct tcf_hashinfo *hinfo;
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char kind[IFNAMSIZ];
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__u32 type; /* TBD to match kind */
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__u32 capab; /* capabilities includes 4 bit version */
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struct module *owner;
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int (*act)(struct sk_buff *, const struct tc_action *, struct tcf_result *);
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int (*get_stats)(struct sk_buff *, struct tc_action *);
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int (*dump)(struct sk_buff *, struct tc_action *, int, int);
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int (*cleanup)(struct tc_action *, int bind);
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int (*lookup)(struct tc_action *, u32);
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int (*init)(struct net *net, struct nlattr *nla,
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struct nlattr *est, struct tc_action *act, int ovr,
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int bind);
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int (*walk)(struct sk_buff *, struct netlink_callback *, int, struct tc_action *);
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};
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struct tcf_common *tcf_hash_lookup(u32 index, struct tcf_hashinfo *hinfo);
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void tcf_hash_destroy(struct tcf_common *p, struct tcf_hashinfo *hinfo);
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int tcf_hash_release(struct tcf_common *p, int bind,
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struct tcf_hashinfo *hinfo);
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int tcf_generic_walker(struct sk_buff *skb, struct netlink_callback *cb,
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int type, struct tc_action *a);
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u32 tcf_hash_new_index(u32 *idx_gen, struct tcf_hashinfo *hinfo);
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int tcf_hash_search(struct tc_action *a, u32 index);
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struct tcf_common *tcf_hash_check(u32 index, struct tc_action *a,
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int bind, struct tcf_hashinfo *hinfo);
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struct tcf_common *tcf_hash_create(u32 index, struct nlattr *est,
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struct tc_action *a, int size,
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int bind, u32 *idx_gen,
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struct tcf_hashinfo *hinfo);
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void tcf_hash_insert(struct tcf_common *p, struct tcf_hashinfo *hinfo);
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int tcf_register_action(struct tc_action_ops *a);
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int tcf_unregister_action(struct tc_action_ops *a);
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void tcf_action_destroy(struct tc_action *a, int bind);
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int tcf_action_exec(struct sk_buff *skb, const struct tc_action *a,
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struct tcf_result *res);
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struct tc_action *tcf_action_init(struct net *net, struct nlattr *nla,
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struct nlattr *est, char *n, int ovr,
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int bind);
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struct tc_action *tcf_action_init_1(struct net *net, struct nlattr *nla,
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struct nlattr *est, char *n, int ovr,
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int bind);
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int tcf_action_dump(struct sk_buff *skb, struct tc_action *a, int, int);
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int tcf_action_dump_old(struct sk_buff *skb, struct tc_action *a, int, int);
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int tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int, int);
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int tcf_action_copy_stats(struct sk_buff *, struct tc_action *, int);
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#endif /* CONFIG_NET_CLS_ACT */
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#endif
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