diff options
| author | Thomas Graf <tgraf@suug.ch> | 2006-08-04 06:38:38 -0400 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-09-22 17:53:40 -0400 |
| commit | 14c0b97ddfc2944982d078b8e33b088840068976 (patch) | |
| tree | 41109287d7e143da29b4bc8742040582af17d870 /include/net | |
| parent | c71099acce933455123ee505cc75964610a209ad (diff) | |
[NET]: Protocol Independant Policy Routing Rules Framework
Derived from net/ipv/fib_rules.c
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/fib_rules.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/include/net/fib_rules.h b/include/net/fib_rules.h new file mode 100644 index 000000000000..61375d9e53f8 --- /dev/null +++ b/include/net/fib_rules.h | |||
| @@ -0,0 +1,90 @@ | |||
| 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 | ||