1 #ifndef __NET_FIB_RULES_H
2 #define __NET_FIB_RULES_H
4 #include <linux/types.h>
5 #include <linux/netdevice.h>
6 #include <linux/fib_rules.h>
8 #include <net/netlink.h>
12 struct list_head list;
15 char ifname[IFNAMSIZ];
29 struct fib_rule *rule;
35 struct list_head list;
39 int (*action)(struct fib_rule *,
41 struct fib_lookup_arg *);
42 int (*match)(struct fib_rule *,
44 int (*configure)(struct fib_rule *,
47 struct fib_rule_hdr *,
49 int (*compare)(struct fib_rule *,
50 struct fib_rule_hdr *,
52 int (*fill)(struct fib_rule *, struct sk_buff *,
54 struct fib_rule_hdr *);
55 u32 (*default_pref)(void);
56 size_t (*nlmsg_payload)(struct fib_rule *);
59 struct nla_policy *policy;
60 struct list_head *rules_list;
64 #define FRA_GENERIC_POLICY \
65 [FRA_IFNAME] = { .type = NLA_STRING, .len = IFNAMSIZ - 1 }, \
66 [FRA_PRIORITY] = { .type = NLA_U32 }, \
67 [FRA_FWMARK] = { .type = NLA_U32 }, \
68 [FRA_FWMASK] = { .type = NLA_U32 }, \
69 [FRA_TABLE] = { .type = NLA_U32 }
71 static inline void fib_rule_get(struct fib_rule *rule)
73 atomic_inc(&rule->refcnt);
76 static inline void fib_rule_put_rcu(struct rcu_head *head)
78 struct fib_rule *rule = container_of(head, struct fib_rule, rcu);
82 static inline void fib_rule_put(struct fib_rule *rule)
84 if (atomic_dec_and_test(&rule->refcnt))
85 call_rcu(&rule->rcu, fib_rule_put_rcu);
88 static inline u32 frh_get_table(struct fib_rule_hdr *frh, struct nlattr **nla)
91 return nla_get_u32(nla[FRA_TABLE]);
95 extern int fib_rules_register(struct fib_rules_ops *);
96 extern int fib_rules_unregister(struct fib_rules_ops *);
98 extern int fib_rules_lookup(struct fib_rules_ops *,
99 struct flowi *, int flags,
100 struct fib_lookup_arg *);
102 extern int fib_nl_newrule(struct sk_buff *,
103 struct nlmsghdr *, void *);
104 extern int fib_nl_delrule(struct sk_buff *,
105 struct nlmsghdr *, void *);
106 extern int fib_rules_dump(struct sk_buff *,
107 struct netlink_callback *, int);