netns xfrm: lookup in netns

Pass netns to xfrm_lookup()/__xfrm_lookup(). For that pass netns
to flow_cache_lookup() and resolver callback.

Take it from socket or netdevice. Stub DECnet to init_net.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 4 deletions

diff --git a/include/net/flow.h b/include/net/flow.h
index b45a5e4fcadd..809970b7dfee 100644
--- a/include/net/flow.h
+++ b/include/net/flow.h
@@ -84,12 +84,13 @@ struct flowi {
 #define FLOW_DIR_OUT    1
 #define FLOW_DIR_FWD    2
 
+struct net;
 struct sock;
-typedef int (*flow_resolve_t)(struct flowi *key, u16 family, u8 dir,
-                               void **objp, atomic_t **obj_refp);
+typedef int (*flow_resolve_t)(struct net *net, struct flowi *key, u16 family,
+                              u8 dir, void **objp, atomic_t **obj_refp);
 
-extern void *flow_cache_lookup(struct flowi *key, u16 family, u8 dir,
-                               flow_resolve_t resolver);
+extern void *flow_cache_lookup(struct net *net, struct flowi *key, u16 family,
+                               u8 dir, flow_resolve_t resolver);
 extern void flow_cache_flush(void);
 extern atomic_t flow_cache_genid;