#ifndef __NET_FIB_RULES_H#define __NET_FIB_RULES_H #include <linux/types.h>#include <linux/netdevice.h>#include <linux/fib_rules.h>#include <net/flow.h>#include <net/netlink.h> struct fib_rule{ struct list_head list; atomic_t refcnt; int ifindex; char ifname[IFNAMSIZ]; u32 mark; u32 mark_mask; u32 pref; u32 flags; u32 table; u8 action; struct rcu_head rcu;}; struct fib_lookup_arg{ void *lookup_ptr; void *result; struct fib_rule *rule;}; struct fib_rules_ops{ int family; struct list_head list; int rule_size; int addr_size; int (*action)(struct fib_rule *, struct flowi *, int, struct fib_lookup_arg *); int (*match)(struct fib_rule *, struct flowi *, int); int (*configure)(struct fib_rule *, struct sk_buff *, struct nlmsghdr *, struct fib_rule_hdr *, struct nlattr **); int (*compare)(struct fib_rule *, struct fib_rule_hdr *, struct nlattr **); int (*fill)(struct fib_rule *, struct sk_buff *, struct nlmsghdr *, struct fib_rule_hdr *); u32 (*default_pref)(void); size_t (*nlmsg_payload)(struct fib_rule *); int nlgroup; struct nla_policy *policy; struct list_head *rules_list; struct module *owner;}; #define FRA_GENERIC_POLICY \ [FRA_IFNAME] = { .type = NLA_STRING, .len = IFNAMSIZ - 1 }, \ [FRA_PRIORITY] = { .type = NLA_U32 }, \ [FRA_FWMARK] = { .type = NLA_U32 }, \ [FRA_FWMASK] = { .type = NLA_U32 }, \ [FRA_TABLE] = { .type = NLA_U32 } static inline void fib_rule_get(struct fib_rule *rule){ atomic_inc(&rule->refcnt);} static inline void fib_rule_put_rcu(struct rcu_head *head){ struct fib_rule *rule = container_of(head, struct fib_rule, rcu); kfree(rule);} static inline void fib_rule_put(struct fib_rule *rule){ if (atomic_dec_and_test(&rule->refcnt)) call_rcu(&rule->rcu, fib_rule_put_rcu);} static inline u32 frh_get_table(struct fib_rule_hdr *frh, struct nlattr **nla){ if (nla[FRA_TABLE]) return nla_get_u32(nla[FRA_TABLE]); return frh->table;} extern int fib_rules_register(struct fib_rules_ops *);extern int fib_rules_unregister(struct fib_rules_ops *); extern int fib_rules_lookup(struct fib_rules_ops *, struct flowi *, int flags, struct fib_lookup_arg *); extern int fib_nl_newrule(struct sk_buff *, struct nlmsghdr *, void *);extern int fib_nl_delrule(struct sk_buff *, struct nlmsghdr *, void *);extern int fib_rules_dump(struct sk_buff *, struct netlink_callback *, int);#endif
#ifndef __NET_FIB_RULES_H
#define __NET_FIB_RULES_H
#include <linux/types.h>
#include <linux/netdevice.h>
#include <linux/fib_rules.h>
#include <net/flow.h>
#include <net/netlink.h>
struct fib_rule
{
struct list_head list;
atomic_t refcnt;
int ifindex;
char ifname[IFNAMSIZ];
u32 mark;
u32 mark_mask;
u32 pref;
u32 flags;
u32 table;
u8 action;
struct rcu_head rcu;
};
struct fib_lookup_arg
{
void *lookup_ptr;
void *result;
struct fib_rule *rule;
};
struct fib_rules_ops
{
int family;
struct list_head list;
int rule_size;
int addr_size;
int (*action)(struct fib_rule *,
struct flowi *, int,
struct fib_lookup_arg *);
int (*match)(struct fib_rule *,
struct flowi *, int);
int (*configure)(struct fib_rule *,
struct sk_buff *,
struct nlmsghdr *,
struct fib_rule_hdr *,
struct nlattr **);
int (*compare)(struct fib_rule *,
struct fib_rule_hdr *,
struct nlattr **);
int (*fill)(struct fib_rule *, struct sk_buff *,
struct nlmsghdr *,
struct fib_rule_hdr *);
u32 (*default_pref)(void);
size_t (*nlmsg_payload)(struct fib_rule *);
int nlgroup;
struct nla_policy *policy;
struct list_head *rules_list;
struct module *owner;
};
#define FRA_GENERIC_POLICY \
[FRA_IFNAME] = { .type = NLA_STRING, .len = IFNAMSIZ - 1 }, \
[FRA_PRIORITY] = { .type = NLA_U32 }, \
[FRA_FWMARK] = { .type = NLA_U32 }, \
[FRA_FWMASK] = { .type = NLA_U32 }, \
[FRA_TABLE] = { .type = NLA_U32 }
static inline void fib_rule_get(struct fib_rule *rule)
{
atomic_inc(&rule->refcnt);
}
static inline void fib_rule_put_rcu(struct rcu_head *head)
{
struct fib_rule *rule = container_of(head, struct fib_rule, rcu);
kfree(rule);
}
static inline void fib_rule_put(struct fib_rule *rule)
{
if (atomic_dec_and_test(&rule->refcnt))
call_rcu(&rule->rcu, fib_rule_put_rcu);
}
static inline u32 frh_get_table(struct fib_rule_hdr *frh, struct nlattr **nla)
{
if (nla[FRA_TABLE])
return nla_get_u32(nla[FRA_TABLE]);
return frh->table;
}
extern int fib_rules_register(struct fib_rules_ops *);
extern int fib_rules_unregister(struct fib_rules_ops *);
extern int fib_rules_lookup(struct fib_rules_ops *,
struct flowi *, int flags,
struct fib_lookup_arg *);
extern int fib_nl_newrule(struct sk_buff *,
struct nlmsghdr *, void *);
extern int fib_nl_delrule(struct sk_buff *,
struct nlmsghdr *, void *);
extern int fib_rules_dump(struct sk_buff *,
struct netlink_callback *, int);
#endif