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Release 4.12 include/net/act_api.h

Directory: include/net
#ifndef __NET_ACT_API_H

#define __NET_ACT_API_H

 * Public action API for classifiers/qdiscs

#include <net/sch_generic.h>
#include <net/pkt_sched.h>
#include <net/net_namespace.h>
#include <net/netns/generic.h>

struct tcf_hashinfo {
struct hlist_head	*htab;
unsigned int		hmask;
spinlock_t		lock;
u32			index;

struct tc_action_ops;

struct tc_action {
const struct tc_action_ops	*ops;
__u32				type; /* for backward compat(TCA_OLD_COMPAT) */
__u32				order;
struct list_head		list;
struct tcf_hashinfo		*hinfo;

struct hlist_node		tcfa_head;
u32				tcfa_index;
int				tcfa_refcnt;
int				tcfa_bindcnt;
u32				tcfa_capab;
int				tcfa_action;
struct tcf_t			tcfa_tm;
struct gnet_stats_basic_packed	tcfa_bstats;
struct gnet_stats_queue		tcfa_qstats;
struct net_rate_estimator __rcu *tcfa_rate_est;
spinlock_t			tcfa_lock;
struct rcu_head			tcfa_rcu;
struct gnet_stats_basic_cpu __percpu *cpu_bstats;
struct gnet_stats_queue __percpu *cpu_qstats;
struct tc_cookie	*act_cookie;

#define tcf_head	common.tcfa_head

#define tcf_index	common.tcfa_index

#define tcf_refcnt	common.tcfa_refcnt

#define tcf_bindcnt	common.tcfa_bindcnt

#define tcf_capab	common.tcfa_capab

#define tcf_action	common.tcfa_action

#define tcf_tm		common.tcfa_tm

#define tcf_bstats	common.tcfa_bstats

#define tcf_qstats	common.tcfa_qstats

#define tcf_rate_est	common.tcfa_rate_est

#define tcf_lock	common.tcfa_lock

#define tcf_rcu		common.tcfa_rcu

static inline unsigned int tcf_hash(u32 index, unsigned int hmask) { return index & hmask; }


David S. Miller20100.00%1100.00%

static inline int tcf_hashinfo_init(struct tcf_hashinfo *hf, unsigned int mask) { int i; spin_lock_init(&hf->lock); hf->index = 0; hf->hmask = mask; hf->htab = kzalloc((mask + 1) * sizeof(struct hlist_head), GFP_KERNEL); if (!hf->htab) return -ENOMEM; for (i = 0; i < mask + 1; i++) INIT_HLIST_HEAD(&hf->htab[i]); return 0; }


Américo Wang100100.00%3100.00%

/* Update lastuse only if needed, to avoid dirtying a cache line. * We use a temp variable to avoid fetching jiffies twice. */
static inline void tcf_lastuse_update(struct tcf_t *tm) { unsigned long now = jiffies; if (tm->lastuse != now) tm->lastuse = now; if (unlikely(!tm->firstuse)) tm->firstuse = now; }


Eric Dumazet3266.67%150.00%
Jamal Hadi Salim1633.33%150.00%

static inline void tcf_tm_dump(struct tcf_t *dtm, const struct tcf_t *stm) { dtm->install = jiffies_to_clock_t(jiffies - stm->install); dtm->lastuse = jiffies_to_clock_t(jiffies - stm->lastuse); dtm->firstuse = jiffies_to_clock_t(jiffies - stm->firstuse); dtm->expires = jiffies_to_clock_t(stm->expires); }


Jamal Hadi Salim68100.00%1100.00%

#ifdef CONFIG_NET_CLS_ACT #define ACT_P_CREATED 1 #define ACT_P_DELETED 1 struct tc_action_ops { struct list_head head; char kind[IFNAMSIZ]; __u32 type; /* TBD to match kind */ size_t size; struct module *owner; int (*act)(struct sk_buff *, const struct tc_action *, struct tcf_result *); int (*dump)(struct sk_buff *, struct tc_action *, int, int); void (*cleanup)(struct tc_action *, int bind); int (*lookup)(struct net *, 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 net *, struct sk_buff *, struct netlink_callback *, int, const struct tc_action_ops *); void (*stats_update)(struct tc_action *, u64, u32, u64); int (*get_dev)(const struct tc_action *a, struct net *net, struct net_device **mirred_dev); }; struct tc_action_net { struct tcf_hashinfo *hinfo; const struct tc_action_ops *ops; };
static inline int tc_action_net_init(struct tc_action_net *tn, const struct tc_action_ops *ops, unsigned int mask) { int err = 0; tn->hinfo = kmalloc(sizeof(*tn->hinfo), GFP_KERNEL); if (!tn->hinfo) return -ENOMEM; tn->ops = ops; err = tcf_hashinfo_init(tn->hinfo, mask); if (err) kfree(tn->hinfo); return err; }


Américo Wang86100.00%1100.00%

void tcf_hashinfo_destroy(const struct tc_action_ops *ops, struct tcf_hashinfo *hinfo);
static inline void tc_action_net_exit(struct tc_action_net *tn) { tcf_hashinfo_destroy(tn->ops, tn->hinfo); kfree(tn->hinfo); }


Américo Wang30100.00%2100.00%

int tcf_generic_walker(struct tc_action_net *tn, struct sk_buff *skb, struct netlink_callback *cb, int type, const struct tc_action_ops *ops); int tcf_hash_search(struct tc_action_net *tn, struct tc_action **a, u32 index); u32 tcf_hash_new_index(struct tc_action_net *tn); bool tcf_hash_check(struct tc_action_net *tn, u32 index, struct tc_action **a, int bind); int tcf_hash_create(struct tc_action_net *tn, u32 index, struct nlattr *est, struct tc_action **a, const struct tc_action_ops *ops, int bind, bool cpustats); void tcf_hash_cleanup(struct tc_action *a, struct nlattr *est); void tcf_hash_insert(struct tc_action_net *tn, struct tc_action *a); int __tcf_hash_release(struct tc_action *a, bool bind, bool strict);
static inline int tcf_hash_release(struct tc_action *a, bool bind) { return __tcf_hash_release(a, bind, false); }


Daniel Borkmann25100.00%1100.00%

int tcf_register_action(struct tc_action_ops *a, struct pernet_operations *ops); int tcf_unregister_action(struct tc_action_ops *a, struct pernet_operations *ops); int tcf_action_destroy(struct list_head *actions, int bind); int tcf_action_exec(struct sk_buff *skb, struct tc_action **actions, int nr_actions, struct tcf_result *res); int tcf_action_init(struct net *net, struct nlattr *nla, struct nlattr *est, char *n, int ovr, int bind, struct list_head *); struct tc_action *tcf_action_init_1(struct net *net, struct nlattr *nla, struct nlattr *est, char *n, int ovr, int bind); int tcf_action_dump(struct sk_buff *skb, struct list_head *, int, int); int tcf_action_dump_old(struct sk_buff *skb, struct tc_action *a, int, int); int tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int, int); int tcf_action_copy_stats(struct sk_buff *, struct tc_action *, int); #endif /* CONFIG_NET_CLS_ACT */
static inline void tcf_action_stats_update(struct tc_action *a, u64 bytes, u64 packets, u64 lastuse) { #ifdef CONFIG_NET_CLS_ACT if (!a->ops->stats_update) return; a->ops->stats_update(a, bytes, packets, lastuse); #endif }


Amir Vadai4588.24%133.33%
Américo Wang47.84%133.33%
Thomas Graf23.92%133.33%


Overall Contributors

Américo Wang45738.05%1743.59%
Thomas Graf28924.06%25.13%
David S. Miller13110.91%12.56%
Jamal Hadi Salim907.49%410.26%
Amir Vadai736.08%25.13%
Eric Dumazet594.91%615.38%
Daniel Borkmann403.33%12.56%
Hadar Hen Zion242.00%12.56%
Benjamin LaHaise201.67%12.56%
Patrick McHardy181.50%410.26%
Directory: include/net
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