1 /* SPDX-License-Identifier: GPL-2.0 */
5 #include <linux/skbuff.h>
10 static inline struct ip_esp_hdr
*ip_esp_hdr(const struct sk_buff
*skb
)
12 return (struct ip_esp_hdr
*)skb_transport_header(skb
);
15 static inline void esp_output_fill_trailer(u8
*tail
, int tfclen
, int plen
, __u8 proto
)
19 memset(tail
, 0, tfclen
);
24 for (i
= 0; i
< plen
- 2; i
++)
27 tail
[plen
- 2] = plen
- 2;
28 tail
[plen
- 1] = proto
;
32 struct ip_esp_hdr
*esph
;
44 int esp_output_head(struct xfrm_state
*x
, struct sk_buff
*skb
, struct esp_info
*esp
);
45 int esp_output_tail(struct xfrm_state
*x
, struct sk_buff
*skb
, struct esp_info
*esp
);
46 int esp_input_done2(struct sk_buff
*skb
, int err
);
47 int esp6_output_head(struct xfrm_state
*x
, struct sk_buff
*skb
, struct esp_info
*esp
);
48 int esp6_output_tail(struct xfrm_state
*x
, struct sk_buff
*skb
, struct esp_info
*esp
);
49 int esp6_input_done2(struct sk_buff
*skb
, int err
);