xfrm: Handle blackhole route creation via afinfo.

That way we don't have to potentially do this in every xfrm_lookup()
caller.

Signed-off-by: David S. Miller <davem@davemloft.net>

4 files changed, 4 insertions, 10 deletions

diff --git a/include/net/dst.h b/include/net/dst.h
index 15d67c8d3ce8..8948452132ad 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -432,17 +432,9 @@ static inline int xfrm_lookup(struct net *net, struct dst_entry **dst_p,
 {
         return 0;
 } 
-static inline int __xfrm_lookup(struct net *net, struct dst_entry **dst_p,
-                                const struct flowi *fl, struct sock *sk,
-                                int flags)
-{
-        return 0;
-}
 #else
 extern int xfrm_lookup(struct net *net, struct dst_entry **dst_p,
                        const struct flowi *fl, struct sock *sk, int flags);
-extern int __xfrm_lookup(struct net *net, struct dst_entry **dst_p,
-                         const struct flowi *fl, struct sock *sk, int flags);
 #endif
 #endif
 
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 5d125c1293a9..d6d077d7f2cf 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -520,8 +520,8 @@ extern struct dst_entry *	ip6_sk_dst_lookup_flow(struct sock *sk,
                                                        struct flowi *fl,
                                                        const struct in6_addr *final_dst,
                                                        bool can_sleep);
-extern struct dst_entry *       ip6_dst_blackhole(struct net *net,
-                                                  struct dst_entry *orig_dst);
+extern struct dst_entry *       ip6_blackhole_route(struct net *net,
+                                                    struct dst_entry *orig_dst);
 
 /*
  *      skb processing functions
diff --git a/include/net/route.h b/include/net/route.h
index 923e670586d4..707cfc8eccdc 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -121,6 +121,7 @@ extern void		rt_cache_flush_batch(struct net *net);
 extern int              __ip_route_output_key(struct net *, struct rtable **, const struct flowi *flp);
 extern int              ip_route_output_key(struct net *, struct rtable **, struct flowi *flp);
 extern int              ip_route_output_flow(struct net *, struct rtable **rp, struct flowi *flp, struct sock *sk);
+extern struct dst_entry *ipv4_blackhole_route(struct net *net, struct dst_entry *dst_orig);
 
 extern int ip_route_input_common(struct sk_buff *skb, __be32 dst, __be32 src,
                                  u8 tos, struct net_device *devin, bool noref);
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index efded23dc4ae..d5dcf3974636 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -280,6 +280,7 @@ struct xfrm_policy_afinfo {
         int                     (*fill_dst)(struct xfrm_dst *xdst,
                                             struct net_device *dev,
                                             const struct flowi *fl);
+        struct dst_entry        *(*blackhole_route)(struct net *net, struct dst_entry *orig);
 };
 
 extern int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo);