root/net/ipv4/fib_lookup.h

INCLUDED FROM

DEFINITIONS

1. fib_alias_accessed
2. fib_result_assign

   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 
  10 struct 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 */
  25 static 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 */
  32 void fib_release_info(struct fib_info *);
  33 struct fib_info *fib_create_info(struct fib_config *cfg,
  34                                  struct netlink_ext_ack *extack);
  35 int fib_nh_match(struct fib_config *cfg, struct fib_info *fi,
  36                  struct netlink_ext_ack *extack);
  37 bool fib_metrics_match(struct fib_config *cfg, struct fib_info *fi);
  38 int 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);
  41 void 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 
  44 static 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 
  52 struct fib_prop {
  53         int     error;
  54         u8      scope;
  55 };
  56 
  57 extern const struct fib_prop fib_props[RTN_MAX + 1];
  58 
  59 #endif /* _FIB_LOOKUP_H */