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Linux/net/ipv4/fib_lookup.h

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

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