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-rw-r--r--include/net/netns/xfrm.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/net/netns/xfrm.h b/include/net/netns/xfrm.h
index 6ae234a1651..02487b39ce5 100644
--- a/include/net/netns/xfrm.h
+++ b/include/net/netns/xfrm.h
@@ -5,6 +5,15 @@
struct netns_xfrm {
struct list_head state_all;
+ /*
+ * Hash table to find appropriate SA towards given target (endpoint of
+ * tunnel or destination of transport mode) allowed by selector.
+ *
+ * Main use is finding SA after policy selected tunnel or transport
+ * mode. Also, it can be used by ah/esp icmp error handler to find
+ * offending SA.
+ */
+ struct hlist_head *state_bydst;
};
#endif