projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 14c0b97d TG |
1 | #ifndef __NET_FIB_RULES_H |
| 2 | #define __NET_FIB_RULES_H | |
| 3 | ||
| 4 | #include <linux/types.h> | |
| 5 | #include <linux/netdevice.h> | |
| 6 | #include <linux/fib_rules.h> | |
| 7 | #include <net/flow.h> | |
| 8 | #include <net/netlink.h> | |
| 9 | ||
| 10 | struct fib_rule | |
| 11 | { | |
| 12 | struct list_head list; | |
| 13 | atomic_t refcnt; | |
| 14 | int ifindex; | |
| 15 | char ifname[IFNAMSIZ]; | |
| 16 | u32 pref; | |
| 17 | u32 flags; | |
| 18 | u32 table; | |
| 19 | u8 action; | |
| 20 | struct rcu_head rcu; | |
| 21 | }; | |
| 22 | ||
| 23 | struct fib_lookup_arg | |
| 24 | { | |
| 25 | void *lookup_ptr; | |
| 26 | void *result; | |
| 27 | struct fib_rule *rule; | |
| 28 | }; | |
| 29 | ||
| 30 | struct fib_rules_ops | |
| 31 | { | |
| 32 | int family; | |
| 33 | struct list_head list; | |
| 34 | int rule_size; | |
| 35 | ||
| 36 | int (*action)(struct fib_rule *, | |
| 37 | struct flowi *, int, | |
| 38 | struct fib_lookup_arg *); | |
| 39 | int (*match)(struct fib_rule *, | |
| 40 | struct flowi *, int); | |
| 41 | int (*configure)(struct fib_rule *, | |
| 42 | struct sk_buff *, | |
| 43 | struct nlmsghdr *, | |
| 44 | struct fib_rule_hdr *, | |
| 45 | struct nlattr **); | |
| 46 | int (*compare)(struct fib_rule *, | |
| 47 | struct fib_rule_hdr *, | |
| 48 | struct nlattr **); | |
| 49 | int (*fill)(struct fib_rule *, struct sk_buff *, | |
| 50 | struct nlmsghdr *, | |
| 51 | struct fib_rule_hdr *); | |
| 52 | u32 (*default_pref)(void); | |
| 53 | ||
| 54 | int nlgroup; | |
| 55 | struct nla_policy *policy; | |
| 56 | struct list_head *rules_list; | |
| 57 | struct module *owner; | |
| 58 | }; | |
| 59 | ||
| 60 | static inline void fib_rule_get(struct fib_rule *rule) | |
| 61 | { | |
| 62 | atomic_inc(&rule->refcnt); | |
| 63 | } | |
| 64 | ||
| 65 | static inline void fib_rule_put_rcu(struct rcu_head *head) | |
| 66 | { | |
| 67 | struct fib_rule *rule = container_of(head, struct fib_rule, rcu); | |
| 68 | kfree(rule); | |
| 69 | } | |
| 70 | ||
| 71 | static inline void fib_rule_put(struct fib_rule *rule) | |
| 72 | { | |
| 73 | if (atomic_dec_and_test(&rule->refcnt)) | |
| 74 | call_rcu(&rule->rcu, fib_rule_put_rcu); | |
| 75 | } | |
| 76 | ||
| 77 | extern int fib_rules_register(struct fib_rules_ops *); | |
| 78 | extern int fib_rules_unregister(struct fib_rules_ops *); | |
| 79 | ||
| 80 | extern int fib_rules_lookup(struct fib_rules_ops *, | |
| 81 | struct flowi *, int flags, | |
| 82 | struct fib_lookup_arg *); | |
| 83 | ||
| 84 | extern int fib_nl_newrule(struct sk_buff *, | |
| 85 | struct nlmsghdr *, void *); | |
| 86 | extern int fib_nl_delrule(struct sk_buff *, | |
| 87 | struct nlmsghdr *, void *); | |
| 88 | extern int fib_rules_dump(struct sk_buff *, | |
| 89 | struct netlink_callback *, int); | |
| 90 | #endif |