alistair23-linux/net/ipv4/fib_lookup.h
Alexander Aring faee676944 net: add net available in build_state
The build_state callback of lwtunnel doesn't contain the net namespace
structure yet. This patch will add it so we can check on specific
address configuration at creation time of rpl source routes.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-29 22:30:57 -07:00

62 lines
1.6 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _FIB_LOOKUP_H
#define _FIB_LOOKUP_H
#include <linux/types.h>
#include <linux/list.h>
#include <net/ip_fib.h>
#include <net/nexthop.h>
struct fib_alias {
struct hlist_node fa_list;
struct fib_info *fa_info;
u8 fa_tos;
u8 fa_type;
u8 fa_state;
u8 fa_slen;
u32 tb_id;
s16 fa_default;
u8 offload:1,
trap:1,
unused:6;
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 */
void fib_release_info(struct fib_info *);
struct fib_info *fib_create_info(struct fib_config *cfg,
struct netlink_ext_ack *extack);
int fib_nh_match(struct net *net, struct fib_config *cfg, struct fib_info *fi,
struct netlink_ext_ack *extack);
bool fib_metrics_match(struct fib_config *cfg, struct fib_info *fi);
int fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
struct fib_rt_info *fri, unsigned int flags);
void rtmsg_fib(int event, __be32 key, struct fib_alias *fa, int dst_len,
u32 tb_id, const struct nl_info *info, unsigned int nlm_flags);
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;
res->nhc = fib_info_nhc(fi, 0);
}
struct fib_prop {
int error;
u8 scope;
};
extern const struct fib_prop fib_props[RTN_MAX + 1];
#endif /* _FIB_LOOKUP_H */