net/ipv4/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
   8 struct fib_alias {
   9         struct list_head        fa_list;
  10         struct rcu_head rcu;
  11         struct fib_info         *fa_info;
  12         u8                      fa_tos;
  13         u8                      fa_type;
  14         u8                      fa_scope;
  15         u8                      fa_state;
  16 };
  17
  18 #define FA_S_ACCESSED   0x01
  19
  20 /* Exported by fib_semantics.c */
  21 extern int fib_semantic_match(struct list_head *head,
  22                               const struct flowi *flp,
  23                               struct fib_result *res, __be32 zone, __be32 mask,
  24                                 int prefixlen);
  25 extern void fib_release_info(struct fib_info *);
  26 extern struct fib_info *fib_create_info(struct fib_config *cfg);
  27 extern int fib_nh_match(struct fib_config *cfg, struct fib_info *fi);
  28 extern int fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
  29                          u32 tb_id, u8 type, u8 scope, __be32 dst,
  30                          int dst_len, u8 tos, struct fib_info *fi,
  31                          unsigned int);
  32 extern void rtmsg_fib(int event, __be32 key, struct fib_alias *fa,
  33                       int dst_len, u32 tb_id, struct nl_info *info,
  34                       unsigned int nlm_flags);
  35 extern struct fib_alias *fib_find_alias(struct list_head *fah,
  36                                         u8 tos, u32 prio);
  37 extern int fib_detect_death(struct fib_info *fi, int order,
  38                             struct fib_info **last_resort,
  39                             int *last_idx, int dflt);
  40
  41 static inline void fib_result_assign(struct fib_result *res,
  42                                      struct fib_info *fi)
  43 {
  44         if (res->fi != NULL)
  45                 fib_info_put(res->fi);
  46         res->fi = fi;
  47         if (fi != NULL)
  48                 atomic_inc(&fi->fib_clntref);
  49 }
  50
  51 #endif /* _FIB_LOOKUP_H */