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xfrm: Separate ESP handling from segmentation for GRO packets.

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We change the ESP GSO handlers to only segment the packets.
The ESP handling and encryption is defered to validate_xmit_xfrm()
where this is done for non GRO packets too. This makes the code
more robust and prepares for asynchronous crypto handling.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Steffen Klassert
2017-12-20 10:41:31 +01:00
parent f39a5c01c3
commit 3dca3f38cf
7 changed files with 129 additions and 132 deletions
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6
include/net/xfrm.h
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@@ -1888,7 +1888,7 @@ static inline struct xfrm_offload *xfrm_offload(struct sk_buff *skb)
void __net_init xfrm_dev_init(void);
#ifdef CONFIG_XFRM_OFFLOAD
int validate_xmit_xfrm(struct sk_buff *skb, netdev_features_t features);
struct sk_buff *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);
@@ -1929,9 +1929,9 @@ static inline void xfrm_dev_state_free(struct xfrm_state *x)
}
}
#else
static inline int validate_xmit_xfrm(struct sk_buff *skb, netdev_features_t features)
static inline struct sk_buff *validate_xmit_xfrm(struct sk_buff *skb, netdev_features_t features)
{
return 0;
return skb;
}
static inline int xfrm_dev_state_add(struct net *net, struct xfrm_state *x, struct xfrm_user_offload *xuo)