linux/include/net/esp.h
Steffen Klassert 383d0350f2 esp6: Reorganize esp_output
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>
2017-04-14 10:06:42 +02:00

33 lines
838 B
C

#ifndef _NET_ESP_H
#define _NET_ESP_H
#include <linux/skbuff.h>
struct ip_esp_hdr;
static inline struct ip_esp_hdr *ip_esp_hdr(const struct sk_buff *skb)
{
return (struct ip_esp_hdr *)skb_transport_header(skb);
}
struct esp_info {
struct ip_esp_hdr *esph;
__be64 seqno;
int tfclen;
int tailen;
int plen;
int clen;
int len;
int nfrags;
__u8 proto;
bool inplace;
};
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