1#ifndef _FIB_LOOKUP_H
2#define _FIB_LOOKUP_H
3
4#include <linux/types.h>
5#include <linux/list.h>
6#include <net/ip_fib.h>
7
8struct fib_alias {
9	struct list_head	fa_list;
10	struct fib_info		*fa_info;
11	u8			fa_tos;
12	u8			fa_type;
13	u8			fa_scope;
14	u8			fa_state;
15#ifdef CONFIG_IP_FIB_TRIE
16	struct rcu_head		rcu;
17#endif
18};
19
20#define FA_S_ACCESSED	0x01
21
22/* Exported by fib_semantics.c */
23extern int fib_semantic_match(struct list_head *head,
24			      const struct flowi *flp,
25			      struct fib_result *res, int prefixlen);
26extern void fib_release_info(struct fib_info *);
27extern struct fib_info *fib_create_info(struct fib_config *cfg);
28extern int fib_nh_match(struct fib_config *cfg, struct fib_info *fi);
29extern int fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
30			 u32 tb_id, u8 type, u8 scope, __be32 dst,
31			 int dst_len, u8 tos, struct fib_info *fi,
32			 unsigned int);
33extern void rtmsg_fib(int event, __be32 key, struct fib_alias *fa,
34		      int dst_len, u32 tb_id, struct nl_info *info,
35		      unsigned int nlm_flags);
36extern struct fib_alias *fib_find_alias(struct list_head *fah,
37					u8 tos, u32 prio);
38extern int fib_detect_death(struct fib_info *fi, int order,
39			    struct fib_info **last_resort,
40			    int *last_idx, int dflt);
41
42static inline void fib_result_assign(struct fib_result *res,
43				     struct fib_info *fi)
44{
45	if (res->fi != NULL)
46		fib_info_put(res->fi);
47	res->fi = fi;
48	if (fi != NULL)
49		atomic_inc(&fi->fib_clntref);
50}
51
52#endif /* _FIB_LOOKUP_H */
53