forked from Minki/linux
f43c5a0df3
tcf_action_exec only gets a single skb pointer and doesn't own the skb, but passes double skb pointers (to a local variable) to the action functions. Change to use single skb pointers everywhere. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
117 lines
3.2 KiB
C
117 lines
3.2 KiB
C
#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>
|
|
|
|
#define tca_gen(name) \
|
|
struct tcf_##name *next; \
|
|
u32 index; \
|
|
int refcnt; \
|
|
int bindcnt; \
|
|
u32 capab; \
|
|
int action; \
|
|
struct tcf_t tm; \
|
|
struct gnet_stats_basic bstats; \
|
|
struct gnet_stats_queue qstats; \
|
|
struct gnet_stats_rate_est rate_est; \
|
|
spinlock_t *stats_lock; \
|
|
spinlock_t lock
|
|
|
|
struct tcf_police
|
|
{
|
|
tca_gen(police);
|
|
int result;
|
|
u32 ewma_rate;
|
|
u32 burst;
|
|
u32 mtu;
|
|
u32 toks;
|
|
u32 ptoks;
|
|
psched_time_t t_c;
|
|
struct qdisc_rate_table *R_tab;
|
|
struct qdisc_rate_table *P_tab;
|
|
};
|
|
|
|
#ifdef CONFIG_NET_CLS_ACT
|
|
|
|
#define ACT_P_CREATED 1
|
|
#define ACT_P_DELETED 1
|
|
|
|
struct tcf_act_hdr
|
|
{
|
|
tca_gen(act_hdr);
|
|
};
|
|
|
|
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;
|
|
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 rtattr *,struct rtattr *,struct tc_action *, int , int );
|
|
int (*walk)(struct sk_buff *, struct netlink_callback *, int , struct tc_action *);
|
|
};
|
|
|
|
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 rtattr *rta, struct rtattr *est, char *n, int ovr, int bind, int *err);
|
|
extern struct tc_action *tcf_action_init_1(struct rtattr *rta, struct rtattr *est, char *n, int ovr, int bind, int *err);
|
|
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 */
|
|
|
|
extern int tcf_police(struct sk_buff *skb, struct tcf_police *p);
|
|
extern void tcf_police_destroy(struct tcf_police *p);
|
|
extern struct tcf_police * tcf_police_locate(struct rtattr *rta, struct rtattr *est);
|
|
extern int tcf_police_dump(struct sk_buff *skb, struct tcf_police *p);
|
|
extern int tcf_police_dump_stats(struct sk_buff *skb, struct tcf_police *p);
|
|
|
|
static inline int
|
|
tcf_police_release(struct tcf_police *p, int bind)
|
|
{
|
|
int ret = 0;
|
|
#ifdef CONFIG_NET_CLS_ACT
|
|
if (p) {
|
|
if (bind) {
|
|
p->bindcnt--;
|
|
}
|
|
p->refcnt--;
|
|
if (p->refcnt <= 0 && !p->bindcnt) {
|
|
tcf_police_destroy(p);
|
|
ret = 1;
|
|
}
|
|
}
|
|
#else
|
|
if (p && --p->refcnt == 0)
|
|
tcf_police_destroy(p);
|
|
|
|
#endif /* CONFIG_NET_CLS_ACT */
|
|
return ret;
|
|
}
|
|
|
|
#endif
|