xfrm: Add Traffic Flow Confidentiality padding XFRM attribute
The XFRMA_TFCPAD attribute for XFRM state installation configures
Traffic Flow Confidentiality by padding ESP packets to a specified
length.
Signed-off-by: Martin Willi <martin@strongswan.org>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 7fa5b00..b9f385d 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -143,6 +143,7 @@
struct xfrm_id id;
struct xfrm_selector sel;
struct xfrm_mark mark;
+ u32 tfcpad;
u32 genid;