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#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_state;
 
 
 
 
 
 
14	struct rcu_head		rcu;
15};
16
17#define FA_S_ACCESSED	0x01
18
19/* Dont write on fa_state unless needed, to keep it shared on all cpus */
20static inline void fib_alias_accessed(struct fib_alias *fa)
21{
22	if (!(fa->fa_state & FA_S_ACCESSED))
23		fa->fa_state |= FA_S_ACCESSED;
24}
25
26/* Exported by fib_semantics.c */
27extern void fib_release_info(struct fib_info *);
28extern struct fib_info *fib_create_info(struct fib_config *cfg);
29extern int fib_nh_match(struct fib_config *cfg, struct fib_info *fi);
30extern int fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
31			 u32 tb_id, u8 type, __be32 dst,
32			 int dst_len, u8 tos, struct fib_info *fi,
33			 unsigned int);
34extern void rtmsg_fib(int event, __be32 key, struct fib_alias *fa,
35		      int dst_len, u32 tb_id, struct nl_info *info,
36		      unsigned int nlm_flags);
37extern struct fib_alias *fib_find_alias(struct list_head *fah,
38					u8 tos, u32 prio);
39extern int fib_detect_death(struct fib_info *fi, int order,
40			    struct fib_info **last_resort,
41			    int *last_idx, int dflt);
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 */