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#include <net/nexthop.h>
 9
10struct fib_alias {
11	struct hlist_node	fa_list;
12	struct fib_info		*fa_info;
13	u8			fa_tos;
14	u8			fa_type;
15	u8			fa_state;
16	u8			fa_slen;
17	u32			tb_id;
18	s16			fa_default;
19	u8			offload:1,
20				trap:1,
21				unused:6;
22	struct rcu_head		rcu;
23};
24
25#define FA_S_ACCESSED	0x01
26
27/* Dont write on fa_state unless needed, to keep it shared on all cpus */
28static inline void fib_alias_accessed(struct fib_alias *fa)
29{
30	if (!(fa->fa_state & FA_S_ACCESSED))
31		fa->fa_state |= FA_S_ACCESSED;
32}
33
34/* Exported by fib_semantics.c */
35void fib_release_info(struct fib_info *);
36struct fib_info *fib_create_info(struct fib_config *cfg,
37				 struct netlink_ext_ack *extack);
38int fib_nh_match(struct net *net, struct fib_config *cfg, struct fib_info *fi,
39		 struct netlink_ext_ack *extack);
40bool fib_metrics_match(struct fib_config *cfg, struct fib_info *fi);
41int fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
42		  struct fib_rt_info *fri, unsigned int flags);
 
43void rtmsg_fib(int event, __be32 key, struct fib_alias *fa, int dst_len,
44	       u32 tb_id, const struct nl_info *info, unsigned int nlm_flags);
45
46static inline void fib_result_assign(struct fib_result *res,
47				     struct fib_info *fi)
48{
49	/* we used to play games with refcounts, but we now use RCU */
50	res->fi = fi;
51	res->nhc = fib_info_nhc(fi, 0);
52}
53
54struct fib_prop {
55	int	error;
56	u8	scope;
57};
58
59extern const struct fib_prop fib_props[RTN_MAX + 1];
60
61#endif /* _FIB_LOOKUP_H */

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