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/inet_dscp.h> |
8 | #include <net/ip_fib.h> |
9 | #include <net/nexthop.h> |
10 | |
11 | struct fib_alias { |
12 | struct hlist_node fa_list; |
13 | struct fib_info *fa_info; |
14 | dscp_t fa_dscp; |
15 | u8 fa_type; |
16 | u8 fa_state; |
17 | u8 fa_slen; |
18 | u32 tb_id; |
19 | s16 fa_default; |
20 | u8 offload; |
21 | u8 trap; |
22 | u8 offload_failed; |
23 | struct rcu_head rcu; |
24 | }; |
25 | |
26 | #define FA_S_ACCESSED 0x01 |
27 | |
28 | /* Don't write on fa_state unless needed, to keep it shared on all cpus */ |
29 | static inline void fib_alias_accessed(struct fib_alias *fa) |
30 | { |
31 | if (!(fa->fa_state & FA_S_ACCESSED)) |
32 | fa->fa_state |= FA_S_ACCESSED; |
33 | } |
34 | |
35 | /* Exported by fib_semantics.c */ |
36 | void fib_release_info(struct fib_info *); |
37 | struct fib_info *fib_create_info(struct fib_config *cfg, |
38 | struct netlink_ext_ack *extack); |
39 | int fib_nh_match(struct net *net, struct fib_config *cfg, struct fib_info *fi, |
40 | struct netlink_ext_ack *extack); |
41 | bool fib_metrics_match(struct fib_config *cfg, struct fib_info *fi); |
42 | int fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event, |
43 | const struct fib_rt_info *fri, unsigned int flags); |
44 | void rtmsg_fib(int event, __be32 key, struct fib_alias *fa, int dst_len, |
45 | u32 tb_id, const struct nl_info *info, unsigned int nlm_flags); |
46 | size_t fib_nlmsg_size(struct fib_info *fi); |
47 | |
48 | static inline void fib_result_assign(struct fib_result *res, |
49 | struct fib_info *fi) |
50 | { |
51 | /* we used to play games with refcounts, but we now use RCU */ |
52 | res->fi = fi; |
53 | res->nhc = fib_info_nhc(fi, nhsel: 0); |
54 | } |
55 | |
56 | struct fib_prop { |
57 | int error; |
58 | u8 scope; |
59 | }; |
60 | |
61 | extern const struct fib_prop fib_props[RTN_MAX + 1]; |
62 | |
63 | #endif /* _FIB_LOOKUP_H */ |
64 | |