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esp6: Reorganize esp_output

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We need a fallback for ESP at layer 2, so split esp6_output
into generic functions that can be used at layer 3 and layer 2
and use them in esp_output. We also add esp6_xmit which is
used for the layer 2 fallback.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Steffen Klassert 2017-04-14 10:06:42 +02:00
parent fca11ebde3
commit 383d0350f2
3 changed files with 246 additions and 124 deletions
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3
include/net/esp.h
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@ -26,4 +26,7 @@ struct esp_info {
int esp_output_head(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *esp);
int esp_output_tail(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *esp);
int esp_input_done2(struct sk_buff *skb, int err);
int esp6_output_head(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *esp);
int esp6_output_tail(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *esp);
int esp6_input_done2(struct sk_buff *skb, int err);
#endif