root/net/ipv4/fib_lookup.h

INCLUDED FROM

DEFINITIONS

1. fib_result_assign

#ifndef _FIB_LOOKUP_H
#define _FIB_LOOKUP_H

#include <linux/types.h>
#include <linux/list.h>
#include <net/ip_fib.h>

struct fib_alias {
        struct list_head        fa_list;
        struct fib_info         *fa_info;
        u8                      fa_tos;
        u8                      fa_type;
        u8                      fa_scope;
        u8                      fa_state;
#ifdef CONFIG_IP_FIB_TRIE
        struct rcu_head         rcu;
#endif
};

#define FA_S_ACCESSED   0x01

/* Exported by fib_semantics.c */
extern int fib_semantic_match(struct list_head *head,
                              const struct flowi *flp,
                              struct fib_result *res, __be32 zone, __be32 mask,
                                int prefixlen);
extern void fib_release_info(struct fib_info *);
extern struct fib_info *fib_create_info(struct fib_config *cfg);
extern int fib_nh_match(struct fib_config *cfg, struct fib_info *fi);
extern int fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
                         u32 tb_id, u8 type, u8 scope, __be32 dst,
                         int dst_len, u8 tos, struct fib_info *fi,
                         unsigned int);
extern void rtmsg_fib(int event, __be32 key, struct fib_alias *fa,
                      int dst_len, u32 tb_id, struct nl_info *info,
                      unsigned int nlm_flags);
extern struct fib_alias *fib_find_alias(struct list_head *fah,
                                        u8 tos, u32 prio);
extern int fib_detect_death(struct fib_info *fi, int order,
                            struct fib_info **last_resort,
                            int *last_idx, int dflt);

static inline void fib_result_assign(struct fib_result *res,
                                     struct fib_info *fi)
{
        if (res->fi != NULL)
                fib_info_put(res->fi);
        res->fi = fi;
        if (fi != NULL)
                atomic_inc(&fi->fib_clntref);
}

#endif /* _FIB_LOOKUP_H */