[net-next-2.6.git] / net / ipv4 / fib_lookup.h

#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;
	struct rcu_head		rcu;
};

#define FA_S_ACCESSED	0x01

/* Dont write on fa_state unless needed, to keep it shared on all cpus */
static inline void fib_alias_accessed(struct fib_alias *fa)
{
	if (!(fa->fa_state & FA_S_ACCESSED))
		fa->fa_state |= FA_S_ACCESSED;
}

/* Exported by fib_semantics.c */
extern int fib_semantic_match(struct list_head *head,
			      const struct flowi *flp,
			      struct fib_result *res, int prefixlen, int fib_flags);
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)
{
	/* we used to play games with refcounts, but we now use RCU */
	res->fi = fi;
}

#endif /* _FIB_LOOKUP_H */
Commit	Line	Data
1da177e4 LT	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;
a6501e08	15	struct rcu_head rcu;
1da177e4 LT	16	};
	17
	18	#define FA_S_ACCESSED 0x01
	19
9b0c290e ED	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
1da177e4 LT	27	/* Exported by fib_semantics.c */
	28	extern int fib_semantic_match(struct list_head *head,
	29	const struct flowi *flp,
ebc0ffae	30	struct fib_result *res, int prefixlen, int fib_flags);
1da177e4	31	extern void fib_release_info(struct fib_info *);
4e902c57 TG	32	extern struct fib_info fib_create_info(struct fib_config cfg);
4e902c57 TG	33	extern int fib_nh_match(struct fib_config cfg, struct fib_info fi);
1da177e4	34	extern int fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
81f7bf6c	35	u32 tb_id, u8 type, u8 scope, __be32 dst,
b6544c0b JHS	36	int dst_len, u8 tos, struct fib_info *fi,
b6544c0b JHS	37	unsigned int);
81f7bf6c	38	extern void rtmsg_fib(int event, __be32 key, struct fib_alias *fa,
b8f55831 MK	39	int dst_len, u32 tb_id, struct nl_info *info,
b8f55831 MK	40	unsigned int nlm_flags);
1da177e4 LT	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,
c17860a0	45	int *last_idx, int dflt);
1da177e4	46
a2bbe682 DL	47	static inline void fib_result_assign(struct fib_result *res,
	48	struct fib_info *fi)
	49	{
1f1b9c99	50	/* we used to play games with refcounts, but we now use RCU */
a2bbe682	51	res->fi = fi;
a2bbe682 DL	52	}
a2bbe682 DL	53
1da177e4	54	#endif /* _FIB_LOOKUP_H */