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 fib_info *fa_info; 11 u8 fa_tos; 12 u8 fa_type; 13 u8 fa_scope; 14 u8 fa_state; 15 struct rcu_head rcu; 16 }; 17 18 #define FA_S_ACCESSED 0x01 19 20 /* Dont write on fa_state unless needed, to keep it shared on all cpus */ 21 static inline void fib_alias_accessed(struct fib_alias *fa) 22 { 23 if (!(fa->fa_state & FA_S_ACCESSED)) 24 fa->fa_state |= FA_S_ACCESSED; 25 } 26 27 /* Exported by fib_semantics.c */ 28 extern int fib_semantic_match(struct list_head *head, 29 const struct flowi *flp, 30 struct fib_result *res, int prefixlen, int fib_flags); 31 extern void fib_release_info(struct fib_info *); 32 extern struct fib_info *fib_create_info(struct fib_config *cfg); 33 extern int fib_nh_match(struct fib_config *cfg, struct fib_info *fi); 34 extern int fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event, 35 u32 tb_id, u8 type, u8 scope, __be32 dst, 36 int dst_len, u8 tos, struct fib_info *fi, 37 unsigned int); 38 extern void rtmsg_fib(int event, __be32 key, struct fib_alias *fa, 39 int dst_len, u32 tb_id, struct nl_info *info, 40 unsigned int nlm_flags); 41 extern struct fib_alias *fib_find_alias(struct list_head *fah, 42 u8 tos, u32 prio); 43 extern int fib_detect_death(struct fib_info *fi, int order, 44 struct fib_info **last_resort, 45 int *last_idx, int dflt); 46 47 static inline void fib_result_assign(struct fib_result *res, 48 struct fib_info *fi) 49 { 50 /* we used to play games with refcounts, but we now use RCU */ 51 res->fi = fi; 52 } 53 54 #endif /* _FIB_LOOKUP_H */ 55