1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _FIB_LOOKUP_H
3#define _FIB_LOOKUP_H
4
5#include <linux/types.h>
6#include <linux/list.h>
7#include <net/ip_fib.h>
8
9struct fib_alias {
10 struct hlist_node fa_list;
11 struct fib_info *fa_info;
12 u8 fa_tos;
13 u8 fa_type;
14 u8 fa_state;
15 u8 fa_slen;
16 u32 tb_id;
17 s16 fa_default;
18 struct rcu_head rcu;
19};
20
21#define FA_S_ACCESSED 0x01
22
23/* Dont write on fa_state unless needed, to keep it shared on all cpus */
24static inline void fib_alias_accessed(struct fib_alias *fa)
25{
26 if (!(fa->fa_state & FA_S_ACCESSED))
27 fa->fa_state |= FA_S_ACCESSED;
28}
29
30/* Exported by fib_semantics.c */
31void fib_release_info(struct fib_info *);
32struct fib_info *fib_create_info(struct fib_config *cfg,
33 struct netlink_ext_ack *extack);
34int fib_nh_match(struct fib_config *cfg, struct fib_info *fi,
35 struct netlink_ext_ack *extack);
36bool fib_metrics_match(struct fib_config *cfg, struct fib_info *fi);
37int fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event, u32 tb_id,
38 u8 type, __be32 dst, int dst_len, u8 tos, struct fib_info *fi,
39 unsigned int);
40void rtmsg_fib(int event, __be32 key, struct fib_alias *fa, int dst_len,
41 u32 tb_id, const struct nl_info *info, unsigned int nlm_flags);
42
43static inline void fib_result_assign(struct fib_result *res,
44 struct fib_info *fi)
45{
46 /* we used to play games with refcounts, but we now use RCU */
47 res->fi = fi;
48}
49
50struct fib_prop {
51 int error;
52 u8 scope;
53};
54
55extern const struct fib_prop fib_props[RTN_MAX + 1];
56
57#endif /* _FIB_LOOKUP_H */
58