From f6e27114a60a0afdec40db1bf7f6da37b565745a Mon Sep 17 00:00:00 2001 From: Steffen Klassert Date: Fri, 14 Apr 2017 10:07:28 +0200 Subject: net: Add a xfrm validate function to validate_xmit_skb When we do IPsec offloading, we need a fallback for packets that were targeted to be IPsec offloaded but rerouted to a device that does not support IPsec offload. For that we add a function that checks the offloading features of the sending device and and flags the requirement of a fallback before it calls the IPsec output function. The IPsec output function adds the IPsec trailer and does encryption if needed. Signed-off-by: Steffen Klassert --- include/net/xfrm.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include') diff --git a/include/net/xfrm.h b/include/net/xfrm.h index 17603bf190c1..6793a30c66b1 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -1862,6 +1862,7 @@ static inline struct xfrm_offload *xfrm_offload(struct sk_buff *skb) #ifdef CONFIG_XFRM_OFFLOAD void __net_init xfrm_dev_init(void); +int validate_xmit_xfrm(struct sk_buff *skb, netdev_features_t features); int xfrm_dev_state_add(struct net *net, struct xfrm_state *x, struct xfrm_user_offload *xuo); bool xfrm_dev_offload_ok(struct sk_buff *skb, struct xfrm_state *x); @@ -1890,6 +1891,11 @@ static inline void __net_init xfrm_dev_init(void) { } +static inline int validate_xmit_xfrm(struct sk_buff *skb, netdev_features_t features) +{ + return 0; +} + static inline int xfrm_dev_state_add(struct net *net, struct xfrm_state *x, struct xfrm_user_offload *xuo) { return 0; -- cgit v1.2.3